| Offset 4, 44 lines modified | Offset 4, 44 lines modified | ||
| 4 | ·714c11fd69b38d73c268d000664a5aea·17631724·debug·optional·erlang-base-dbgsym_28.0+dfsg-1_amd64.deb | 4 | ·714c11fd69b38d73c268d000664a5aea·17631724·debug·optional·erlang-base-dbgsym_28.0+dfsg-1_amd64.deb |
| 5 | ·b7949ef116dc190b0b534dad92e5ec8c·12273148·interpreters·optional·erlang-base_28.0+dfsg-1_amd64.deb | 5 | ·b7949ef116dc190b0b534dad92e5ec8c·12273148·interpreters·optional·erlang-base_28.0+dfsg-1_amd64.deb |
| 6 | ·4a82e906cd1a8cd3ba3cd412f1b8fee3·40696·debug·optional·erlang-common-test-dbgsym_28.0+dfsg-1_amd64.deb | 6 | ·4a82e906cd1a8cd3ba3cd412f1b8fee3·40696·debug·optional·erlang-common-test-dbgsym_28.0+dfsg-1_amd64.deb |
| 7 | ·0df90313968cf2e03d27b2d9c2d755e3·1332356·interpreters·optional·erlang-common-test_28.0+dfsg-1_amd64.deb | 7 | ·0df90313968cf2e03d27b2d9c2d755e3·1332356·interpreters·optional·erlang-common-test_28.0+dfsg-1_amd64.deb |
| 8 | ·364b6c78bb968e7531bfb2f723242e63·129944·debug·optional·erlang-crypto-dbgsym_28.0+dfsg-1_amd64.deb | 8 | ·364b6c78bb968e7531bfb2f723242e63·129944·debug·optional·erlang-crypto-dbgsym_28.0+dfsg-1_amd64.deb |
| 9 | ·abfc882db5c8d3566535847aa4758307·186472·interpreters·optional·erlang-crypto_28.0+dfsg-1_amd64.deb | 9 | ·abfc882db5c8d3566535847aa4758307·186472·interpreters·optional·erlang-crypto_28.0+dfsg-1_amd64.deb |
| 10 | ·8473674529cab0330f476bcd5db2a254·493060·interpreters·optional·erlang-debugger_28.0+dfsg-1_amd64.deb | 10 | ·8473674529cab0330f476bcd5db2a254·493060·interpreters·optional·erlang-debugger_28.0+dfsg-1_amd64.deb |
| 11 | · | 11 | ·dd0c16ea23f531023c17c0faf1c7b5c6·352024·interpreters·optional·erlang-dev_28.0+dfsg-1_amd64.deb |
| 12 | ·c2fea57edb9394bd55c32b92932b7e1c·76376·debug·optional·erlang-dialyzer-dbgsym_28.0+dfsg-1_amd64.deb | 12 | ·c2fea57edb9394bd55c32b92932b7e1c·76376·debug·optional·erlang-dialyzer-dbgsym_28.0+dfsg-1_amd64.deb |
| 13 | ·314b1e776a26e4ae5b154c5854c1b9f9·1067140·interpreters·optional·erlang-dialyzer_28.0+dfsg-1_amd64.deb | 13 | ·314b1e776a26e4ae5b154c5854c1b9f9·1067140·interpreters·optional·erlang-dialyzer_28.0+dfsg-1_amd64.deb |
| 14 | ·e2f9d45515cf200b50bab10063bd7ebb·825840·interpreters·optional·erlang-diameter_28.0+dfsg-1_amd64.deb | 14 | ·e2f9d45515cf200b50bab10063bd7ebb·825840·interpreters·optional·erlang-diameter_28.0+dfsg-1_amd64.deb |
| 15 | · | 15 | ·5a262f5532c767daa3f549ff753da99a·17402144·doc·optional·erlang-doc_28.0+dfsg-1_all.deb |
| 16 | ·4424e39525e8518ebd8af68d8f8c4e6d·458392·interpreters·optional·erlang-edoc_28.0+dfsg-1_amd64.deb | 16 | ·4424e39525e8518ebd8af68d8f8c4e6d·458392·interpreters·optional·erlang-edoc_28.0+dfsg-1_amd64.deb |
| 17 | ·8a38a1ff6ebfc6e69937e3da2267e39a·140000·interpreters·optional·erlang-eldap_28.0+dfsg-1_amd64.deb | 17 | ·8a38a1ff6ebfc6e69937e3da2267e39a·140000·interpreters·optional·erlang-eldap_28.0+dfsg-1_amd64.deb |
| 18 | ·8c6346055d070511e7689422c93a402e·187352·interpreters·optional·erlang-et_28.0+dfsg-1_amd64.deb | 18 | ·8c6346055d070511e7689422c93a402e·187352·interpreters·optional·erlang-et_28.0+dfsg-1_amd64.deb |
| 19 | ·acc3922d66786a32b5f9f3e6a49f499e·174888·interpreters·optional·erlang-eunit_28.0+dfsg-1_amd64.deb | 19 | ·acc3922d66786a32b5f9f3e6a49f499e·174888·interpreters·optional·erlang-eunit_28.0+dfsg-1_amd64.deb |
| 20 | ·4e504d6082dbb372a5c3202ef24337a2·959708·interpreters·optional·erlang-examples_28.0+dfsg-1_all.deb | 20 | ·4e504d6082dbb372a5c3202ef24337a2·959708·interpreters·optional·erlang-examples_28.0+dfsg-1_all.deb |
| 21 | ·689515d0d43779fea470f53579513e39·108700·interpreters·optional·erlang-ftp_28.0+dfsg-1_amd64.deb | 21 | ·689515d0d43779fea470f53579513e39·108700·interpreters·optional·erlang-ftp_28.0+dfsg-1_amd64.deb |
| 22 | ·f08afa45685e07421a9e885311ddd3ab·687712·interpreters·optional·erlang-inets_28.0+dfsg-1_amd64.deb | 22 | ·f08afa45685e07421a9e885311ddd3ab·687712·interpreters·optional·erlang-inets_28.0+dfsg-1_amd64.deb |
| 23 | · | 23 | ·8592b6e8479c03694eee09d924fd212d·113616·interpreters·optional·erlang-jinterface_28.0+dfsg-1_all.deb |
| 24 | ·cda1bb2db072536a7c5812bf26a7fd54·68044·debug·optional·erlang-megaco-dbgsym_28.0+dfsg-1_amd64.deb | 24 | ·cda1bb2db072536a7c5812bf26a7fd54·68044·debug·optional·erlang-megaco-dbgsym_28.0+dfsg-1_amd64.deb |
| 25 | ·f9302e84b6a8a1708786a6c25461354f·3733368·interpreters·optional·erlang-megaco_28.0+dfsg-1_amd64.deb | 25 | ·f9302e84b6a8a1708786a6c25461354f·3733368·interpreters·optional·erlang-megaco_28.0+dfsg-1_amd64.deb |
| 26 | ·af877d9f54b2f838b192489d8a135260·912672·interpreters·optional·erlang-mnesia_28.0+dfsg-1_amd64.deb | 26 | ·af877d9f54b2f838b192489d8a135260·912672·interpreters·optional·erlang-mnesia_28.0+dfsg-1_amd64.deb |
| 27 | ·3962d9691b9c296385aaa55dbc975e7d·93720·interpreters·optional·erlang-mode_28.0+dfsg-1_all.deb | 27 | ·3962d9691b9c296385aaa55dbc975e7d·93720·interpreters·optional·erlang-mode_28.0+dfsg-1_all.deb |
| 28 | ·d84b3fa9984736cfe3753be307758635·14900·interpreters·optional·erlang-nox_28.0+dfsg-1_all.deb | 28 | ·d84b3fa9984736cfe3753be307758635·14900·interpreters·optional·erlang-nox_28.0+dfsg-1_all.deb |
| 29 | ·82c3db0e099fa1772368fa36d636f4af·1038776·interpreters·optional·erlang-observer_28.0+dfsg-1_amd64.deb | 29 | ·82c3db0e099fa1772368fa36d636f4af·1038776·interpreters·optional·erlang-observer_28.0+dfsg-1_amd64.deb |
| 30 | ·20a68f1bdc2f4b81b5a4f19856814863·65856·debug·optional·erlang-odbc-dbgsym_28.0+dfsg-1_amd64.deb | 30 | ·20a68f1bdc2f4b81b5a4f19856814863·65856·debug·optional·erlang-odbc-dbgsym_28.0+dfsg-1_amd64.deb |
| 31 | ·f011d597bf0f618933fad18487bacf9c·70744·interpreters·optional·erlang-odbc_28.0+dfsg-1_amd64.deb | 31 | ·f011d597bf0f618933fad18487bacf9c·70744·interpreters·optional·erlang-odbc_28.0+dfsg-1_amd64.deb |
| 32 | ·95665a16bb832713fbeebffb3c6a9061·20284·debug·optional·erlang-os-mon-dbgsym_28.0+dfsg-1_amd64.deb | 32 | ·95665a16bb832713fbeebffb3c6a9061·20284·debug·optional·erlang-os-mon-dbgsym_28.0+dfsg-1_amd64.deb |
| 33 | ·ab55574beb3db3eadccfc5b4233c6f14·117224·interpreters·optional·erlang-os-mon_28.0+dfsg-1_amd64.deb | 33 | ·ab55574beb3db3eadccfc5b4233c6f14·117224·interpreters·optional·erlang-os-mon_28.0+dfsg-1_amd64.deb |
| 34 | ·2aad8addb1f76167f51bed75952eb516·213496·interpreters·optional·erlang-parsetools_28.0+dfsg-1_amd64.deb | 34 | ·2aad8addb1f76167f51bed75952eb516·213496·interpreters·optional·erlang-parsetools_28.0+dfsg-1_amd64.deb |
| 35 | ·cd | 35 | ·cd9e20a3f64d51dbc56218da8c21b4e1·1214988·interpreters·optional·erlang-public-key_28.0+dfsg-1_amd64.deb |
| 36 | ·d927598184bb6754cf7c7099572f778d·387700·interpreters·optional·erlang-reltool_28.0+dfsg-1_amd64.deb | 36 | ·d927598184bb6754cf7c7099572f778d·387700·interpreters·optional·erlang-reltool_28.0+dfsg-1_amd64.deb |
| 37 | ·b0a29b6467f6ddc6081893a3426be7c7·27752·debug·optional·erlang-runtime-tools-dbgsym_28.0+dfsg-1_amd64.deb | 37 | ·b0a29b6467f6ddc6081893a3426be7c7·27752·debug·optional·erlang-runtime-tools-dbgsym_28.0+dfsg-1_amd64.deb |
| 38 | ·7bb21373bb4e461da6e08c9786a0858f·252576·interpreters·optional·erlang-runtime-tools_28.0+dfsg-1_amd64.deb | 38 | ·7bb21373bb4e461da6e08c9786a0858f·252576·interpreters·optional·erlang-runtime-tools_28.0+dfsg-1_amd64.deb |
| 39 | ·8a88d4337ae46faeff11347af9a19370·1982824·interpreters·optional·erlang-snmp_28.0+dfsg-1_amd64.deb | 39 | ·8a88d4337ae46faeff11347af9a19370·1982824·interpreters·optional·erlang-snmp_28.0+dfsg-1_amd64.deb |
| 40 | · | 40 | ·d3134b97e70dd22a8602da8a8312d5ad·6198692·interpreters·optional·erlang-src_28.0+dfsg-1_all.deb |
| 41 | ·7d0f76ec92c026dfe07e23fc8441f85c·1031408·interpreters·optional·erlang-ssh_28.0+dfsg-1_amd64.deb | 41 | ·7d0f76ec92c026dfe07e23fc8441f85c·1031408·interpreters·optional·erlang-ssh_28.0+dfsg-1_amd64.deb |
| 42 | ·523b5d6b13535b477e28095d76ff4c5c·1688216·interpreters·optional·erlang-ssl_28.0+dfsg-1_amd64.deb | 42 | ·523b5d6b13535b477e28095d76ff4c5c·1688216·interpreters·optional·erlang-ssl_28.0+dfsg-1_amd64.deb |
| 43 | ·a73c2b781097eb3dcf4a58b04d57cdf5·358860·interpreters·optional·erlang-syntax-tools_28.0+dfsg-1_amd64.deb | 43 | ·a73c2b781097eb3dcf4a58b04d57cdf5·358860·interpreters·optional·erlang-syntax-tools_28.0+dfsg-1_amd64.deb |
| 44 | ·e6c4654b670f19461b3494b0f6a9a4d3·115384·interpreters·optional·erlang-tftp_28.0+dfsg-1_amd64.deb | 44 | ·e6c4654b670f19461b3494b0f6a9a4d3·115384·interpreters·optional·erlang-tftp_28.0+dfsg-1_amd64.deb |
| 45 | ·0bf674a28eeab7aa328e5f3825527b17·636388·interpreters·optional·erlang-tools_28.0+dfsg-1_amd64.deb | 45 | ·0bf674a28eeab7aa328e5f3825527b17·636388·interpreters·optional·erlang-tools_28.0+dfsg-1_amd64.deb |
| 46 | ·be14ba4d3e9764a8e208ae8bf6a43059·5580000·debug·optional·erlang-wx-dbgsym_28.0+dfsg-1_amd64.deb | 46 | ·be14ba4d3e9764a8e208ae8bf6a43059·5580000·debug·optional·erlang-wx-dbgsym_28.0+dfsg-1_amd64.deb |
| 47 | ·ecef9f6fe11cee098406700fb30a3fa9·5160592·interpreters·optional·erlang-wx_28.0+dfsg-1_amd64.deb | 47 | ·ecef9f6fe11cee098406700fb30a3fa9·5160592·interpreters·optional·erlang-wx_28.0+dfsg-1_amd64.deb |
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| 1 | -rw-r--r--···0········0········0········4·2025-05-21·08:22:24.000000·debian-binary | 1 | -rw-r--r--···0········0········0········4·2025-05-21·08:22:24.000000·debian-binary |
| 2 | -rw-r--r--···0········0········0·····3648·2025-05-21·08:22:24.000000·control.tar.xz | 2 | -rw-r--r--···0········0········0·····3648·2025-05-21·08:22:24.000000·control.tar.xz |
| 3 | -rw-r--r--···0········0········0···348 | 3 | -rw-r--r--···0········0········0···348184·2025-05-21·08:22:24.000000·data.tar.xz |
| Offset 7, 312 lines modified | Offset 7, 312 lines modified | ||
| 7 | -define(VERSION,·"1:28.0+dfsg"). | 7 | -define(VERSION,·"1:28.0+dfsg"). |
| 8 | -define(ABI_VERSION,·"17.0"). | 8 | -define(ABI_VERSION,·"17.0"). |
| 9 | -define(PCRE_VERSION,·"."). | 9 | -define(PCRE_VERSION,·"."). |
| 10 | %·Since·all·packages·required·built·application·to·run·may·be·unavailable | 10 | %·Since·all·packages·required·built·application·to·run·may·be·unavailable |
| 11 | %·on·build·stage·it's·necessary·to·list·all·module-package·relationships | 11 | %·on·build·stage·it's·necessary·to·list·all·module-package·relationships |
| 12 | %·explicitly: | 12 | %·explicitly: |
| 13 | -define(MODULES,·[{" | 13 | -define(MODULES,·[{"target_system",·"erlang-base"}, |
| 14 | {"systools_make",·"erlang-base"}, | ||
| 15 | {"systools_rc",·"erlang-base"}, | ||
| 16 | {"release_handler",·"erlang-base"}, | ||
| 17 | {"erlsrv",·"erlang-base"}, | ||
| 18 | {"format_lib_supp",·"erlang-base"}, | ||
| 19 | {"release_handler_1",·"erlang-base"}, | ||
| 20 | {"alarm_handler",·"erlang-base"}, | ||
| 21 | {"systools",·"erlang-base"}, | ||
| 22 | {"rb",·"erlang-base"}, | ||
| 23 | {"rb_format_supp",·"erlang-base"}, | ||
| 24 | {"systools_relup",·"erlang-base"}, | ||
| 25 | {"systools_lib",·"erlang-base"}, | ||
| 26 | {"misc_supp",·"erlang-base"}, | ||
| 14 | {" | 27 | {"sasl",·"erlang-base"}, |
| 28 | {"sasl_report_tty_h",·"erlang-base"}, | ||
| 29 | {"sasl_report_file_h",·"erlang-base"}, | ||
| 30 | {"sasl_report",·"erlang-base"}, | ||
| 31 | {"unicode_util",·"erlang-base"}, | ||
| 32 | {"supervisor",·"erlang-base"}, | ||
| 15 | {" | 33 | {"slave",·"erlang-base"}, |
| 16 | {"r | 34 | {"ordsets",·"erlang-base"}, |
| 35 | {"otp_internal",·"erlang-base"}, | ||
| 17 | {"g | 36 | {"gen",·"erlang-base"}, |
| 37 | {"beam_lib",·"erlang-base"}, | ||
| 18 | {"error_logger_file_h",·"erlang-base"}, | 38 | {"error_logger_file_h",·"erlang-base"}, |
| 19 | {"gb_sets",·"erlang-base"}, | ||
| 20 | {" | 39 | {"io_lib",·"erlang-base"}, |
| 21 | {"shell",·"erlang-base"}, | ||
| 22 | {"dets_server",·"erlang-base"}, | ||
| 23 | {"queue",·"erlang-base"}, | ||
| 24 | {"edlin_context",·"erlang-base"}, | ||
| 25 | {"erl_features",·"erlang-base"}, | ||
| 26 | {"shell_docs_markdown",·"erlang-base"}, | 40 | {"shell_docs_markdown",·"erlang-base"}, |
| 41 | {"error_logger_tty_h",·"erlang-base"}, | ||
| 42 | {"edlin_type_suggestion",·"erlang-base"}, | ||
| 43 | {"erl_abstract_code",·"erlang-base"}, | ||
| 44 | {"edlin_context",·"erlang-base"}, | ||
| 45 | {"erl_parse",·"erlang-base"}, | ||
| 46 | {"base64",·"erlang-base"}, | ||
| 47 | {"erl_bits",·"erlang-base"}, | ||
| 48 | {"dets",·"erlang-base"}, | ||
| 49 | {"erl_eval",·"erlang-base"}, | ||
| 50 | {"erl_compile",·"erlang-base"}, | ||
| 51 | {"gen_event",·"erlang-base"}, | ||
| 52 | {"erl_lint",·"erlang-base"}, | ||
| 27 | {"po | 53 | {"proplists",·"erlang-base"}, |
| 54 | {"io_lib_pretty",·"erlang-base"}, | ||
| 55 | {"ets",·"erlang-base"}, | ||
| 28 | {"io_lib_format",·"erlang-base"}, | 56 | {"io_lib_format",·"erlang-base"}, |
| 29 | {"ms_transform",·"erlang-base"}, | ||
| 30 | {"eval_bits",·"erlang-base"}, | ||
| 31 | {"erl_posix_msg",·"erlang-base"}, | ||
| 32 | {"qlc_pt",·"erlang-base"}, | ||
| 33 | {"gen_statem",·"erlang-base"}, | ||
| 34 | {"shell_docs_test",·"erlang-base"}, | ||
| 35 | {"dets_v9",·"erlang-base"}, | ||
| 36 | {"edlin",·"erlang-base"}, | ||
| 37 | {"escript",·"erlang-base"}, | ||
| 38 | {"array",·"erlang-base"}, | ||
| 39 | {"unicode_util",·"erlang-base"}, | ||
| 40 | {"maps",·"erlang-base"}, | ||
| 41 | {"win32reg",·"erlang-base"}, | ||
| 42 | {"argparse",·"erlang-base"}, | 57 | {"argparse",·"erlang-base"}, |
| 43 | {" | 58 | {"erl_scan",·"erlang-base"}, |
| 59 | {"shell_docs_test",·"erlang-base"}, | ||
| 60 | {"dict",·"erlang-base"}, | ||
| 61 | {"zstd",·"erlang-base"}, | ||
| 62 | {"erl_pp",·"erlang-base"}, | ||
| 63 | {"shell_default",·"erlang-base"}, | ||
| 64 | {"file_sorter",·"erlang-base"}, | ||
| 44 | {"erl_internal",·"erlang-base"}, | 65 | {"erl_internal",·"erlang-base"}, |
| 66 | {"eval_bits",·"erlang-base"}, | ||
| 67 | {"win32reg",·"erlang-base"}, | ||
| 45 | {"erl_error",·"erlang-base"}, | 68 | {"erl_error",·"erlang-base"}, |
| 46 | {"sofs",·"erlang-base"}, | ||
| 47 | {"zip",·"erlang-base"}, | ||
| 48 | {"erl_expand_records",·"erlang-base"}, | ||
| 49 | {"erl_eval",·"erlang-base"}, | ||
| 50 | {"sets",·"erlang-base"}, | ||
| 51 | {"edlin_expand",·"erlang-base"}, | ||
| 52 | {"io_lib_fread",·"erlang-base"}, | ||
| 53 | {"erl_parse",·"erlang-base"}, | ||
| 54 | {"lists",·"erlang-base"}, | 69 | {"lists",·"erlang-base"}, |
| 55 | {"io",·"erlang-base"}, | ||
| 56 | {" | 70 | {"calendar",·"erlang-base"}, |
| 71 | {"queue",·"erlang-base"}, | ||
| 57 | {"unicode",·"erlang-base"}, | 72 | {"unicode",·"erlang-base"}, |
| 58 | {"gen_event",·"erlang-base"}, | ||
| 59 | {"erl_stdlib_errors",·"erlang-base"}, | ||
| 60 | {"shell_docs",·"erlang-base"}, | ||
| 61 | {"slave",·"erlang-base"}, | ||
| 62 | {"proc_lib",·"erlang-base"}, | ||
| 63 | {"edlin_key",·"erlang-base"}, | ||
| 64 | {"c",·"erlang-base"}, | ||
| 65 | {"ordsets",·"erlang-base"}, | ||
| 66 | {"gen",·"erlang-base"}, | ||
| 67 | {"erl_anno",·"erlang-base"}, | ||
| 68 | {"dets_sup",·"erlang-base"}, | 73 | {"dets_sup",·"erlang-base"}, |
| 74 | {"gb_trees",·"erlang-base"}, | ||
| 75 | {"binary",·"erlang-base"}, | ||
| 69 | {" | 76 | {"log_mf_h",·"erlang-base"}, |
| 77 | {"erl_posix_msg",·"erlang-base"}, | ||
| 78 | {"sys",·"erlang-base"}, | ||
| 79 | {"escript",·"erlang-base"}, | ||
| 80 | {"edlin_expand",·"erlang-base"}, | ||
| 81 | {"gen_statem",·"erlang-base"}, | ||
| 82 | {"sets",·"erlang-base"}, | ||
| 83 | {"io_lib_fread",·"erlang-base"}, | ||
| 84 | {"dets_server",·"erlang-base"}, | ||
| 85 | {"digraph_utils",·"erlang-base"}, | ||
| 86 | {"uri_string",·"erlang-base"}, | ||
| 87 | {"erl_features",·"erlang-base"}, | ||
| 88 | {"shell",·"erlang-base"}, | ||
| 89 | {"erl_tar",·"erlang-base"}, | ||
| 90 | {"io",·"erlang-base"}, | ||
| 91 | {"peer",·"erlang-base"}, | ||
| 92 | {"erl_expand_records",·"erlang-base"}, | ||
| 93 | {"qlc_pt",·"erlang-base"}, | ||
| 70 | {"filename",·"erlang-base"}, | 94 | {"filename",·"erlang-base"}, |
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| 2 | -rw-r--r--···0········0········0····399 | 2 | -rw-r--r--···0········0········0····39964·2025-05-21·08:22:24.000000·control.tar.xz |
| 3 | -rw-r--r--···0········0········0·1736 | 3 | -rw-r--r--···0········0········0·17361988·2025-05-21·08:22:24.000000·data.tar.xz |
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| 127 | ······<p·class="built-using"> | 127 | ······<p·class="built-using"> |
| 128 | ········Built·using | 128 | ········Built·using |
| 129 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 129 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 130 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 130 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 131 | ······</p> | 131 | ······</p> |
| 132 | <p>Copyright·©·1996-202 | 132 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 133 | ····</footer> | 133 | ····</footer> |
| 134 | ··</div> | 134 | ··</div> |
| 135 | </main> | 135 | </main> |
| 136 | </div> | 136 | </div> |
| 137 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 137 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 138 | ··<script> | 138 | ··<script> |
| 139 | ··let·initialized·=·false; | 139 | ··let·initialized·=·false; |
| Offset 131, 15 lines modified | Offset 131, 15 lines modified | ||
| 131 | ······<p·class="built-using"> | 131 | ······<p·class="built-using"> |
| 132 | ········Built·using | 132 | ········Built·using |
| 133 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 133 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 134 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 134 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 135 | ······</p> | 135 | ······</p> |
| 136 | <p>Copyright·©·1996-202 | 136 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 137 | ····</footer> | 137 | ····</footer> |
| 138 | ··</div> | 138 | ··</div> |
| 139 | </main> | 139 | </main> |
| 140 | </div> | 140 | </div> |
| 141 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 141 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 142 | ··<script> | 142 | ··<script> |
| 143 | ··let·initialized·=·false; | 143 | ··let·initialized·=·false; |
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| 135 | <a·href="applications.html#app_dir">directory·structure</a>.</p><p><a·href=""·id="callback_module"></a></p><h2·id="application-callback-module"·class="section-heading"> | 135 | <a·href="applications.html#app_dir">directory·structure</a>.</p><p><a·href=""·id="callback_module"></a></p><h2·id="application-callback-module"·class="section-heading"> |
| 136 | ··<a·href="#application-callback-module"·class="hover-link"> | 136 | ··<a·href="#application-callback-module"·class="hover-link"> |
| 137 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 137 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 138 | ··</a> | 138 | ··</a> |
| 139 | ··<span·class="text">Application·Callback·Module</span> | 139 | ··<span·class="text">Application·Callback·Module</span> |
| 140 | </h2> | 140 | </h2> |
| 141 | <p>How·to·start·and·stop·the·code·for·the·application,·including·its·supervision | 141 | <p>How·to·start·and·stop·the·code·for·the·application,·including·its·supervision |
| 142 | tree,·is·described·by·two·callback·functions:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">start</span><span·class="p"·data-group-id="7842616263-1">(</span><span·class="n">StartType</span><span·class="p">,</span><span·class="w">·</span><span·class="n">StartArgs</span><span·class="p"·data-group-id="7842616263-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="p"·data-group-id="7842616263-2">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Pid</span><span·class="p"·data-group-id="7842616263-2">}</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id="7842616263-3">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Pid</span><span·class="p">,</span><span·class="w">·</span><span·class="n">State</span><span·class="p"·data-group-id="7842616263-3">}</span><span·class="w"> | ||
| 143 | 142 | tree,·is·described·by·two·callback·functions:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">start</span><span·class="p"·data-group-id="8395913037-1">(</span><span·class="n">StartType</span><span·class="p">,</span><span·class="w">·</sp[·...·truncated·by·diffoscope;·len:·740,·SHA:·16e87cc15d4f220637b1239f8c86ed1ef0b9528c5b7b7442564f9f6aaec84ab8·...·] | |
| 143 | </span><span·class="nf">stop</span><span·class="p"·data-group-id="8395913037-4">(</span><span·class="n">State</span><span·class="p"·data-group-id="8395913037-4">)</span></code></pre><ul><li><code·class="inline">start/2</code>·is·called·when·starting·the·application·and·is·to·create·the | ||
| 144 | supervision·tree·by·starting·the·top·supervisor.·It·is·expected·to·return·the | 144 | supervision·tree·by·starting·the·top·supervisor.·It·is·expected·to·return·the |
| 145 | pid·of·the·top·supervisor·and·an·optional·term,·<code·class="inline">State</code>,·which·defaults·to | 145 | pid·of·the·top·supervisor·and·an·optional·term,·<code·class="inline">State</code>,·which·defaults·to |
| 146 | <code·class="inline">[]</code>.·This·term·is·passed·as·is·to·<code·class="inline">stop/1</code>.</li><li><code·class="inline">StartType</code>·is·usually·the·atom·<code·class="inline">normal</code>.·It·has·other·values·only·in·the·case | 146 | <code·class="inline">[]</code>.·This·term·is·passed·as·is·to·<code·class="inline">stop/1</code>.</li><li><code·class="inline">StartType</code>·is·usually·the·atom·<code·class="inline">normal</code>.·It·has·other·values·only·in·the·case |
| 147 | of·a·takeover·or·failover;·see | 147 | of·a·takeover·or·failover;·see |
| 148 | <a·href="distributed_applications.html">Distributed·Applications</a>.</li><li><code·class="inline">StartArgs</code>·is·defined·by·the·key·<code·class="inline">mod</code>·in·the | 148 | <a·href="distributed_applications.html">Distributed·Applications</a>.</li><li><code·class="inline">StartArgs</code>·is·defined·by·the·key·<code·class="inline">mod</code>·in·the |
| 149 | <a·href="applications.html#appl_res_file">application·resource·file</a>.</li><li><code·class="inline">stop/1</code>·is·called·<em>after</em>·the·application·has·been·stopped·and·is·to·do·any | 149 | <a·href="applications.html#appl_res_file">application·resource·file</a>.</li><li><code·class="inline">stop/1</code>·is·called·<em>after</em>·the·application·has·been·stopped·and·is·to·do·any |
| 150 | necessary·cleaning·up.·The·actual·stopping·of·the·application,·that·is, | 150 | necessary·cleaning·up.·The·actual·stopping·of·the·application,·that·is, |
| 151 | shutting·down·the·supervision·tree,·is·handled·automatically·as·described·in | 151 | shutting·down·the·supervision·tree,·is·handled·automatically·as·described·in |
| 152 | <a·href="applications.html#stopping">Starting·and·Stopping·Applications</a>.</li></ul><p><a·href=""·id="ch_app"></a></p><p>Example·of·an·application·callback·module·for·packaging·the·supervision·tree | 152 | <a·href="applications.html#stopping">Starting·and·Stopping·Applications</a>.</li></ul><p><a·href=""·id="ch_app"></a></p><p>Example·of·an·application·callback·module·for·packaging·the·supervision·tree |
| 153 | from·<a·href="sup_princ.html#ex">Supervisor·Behaviour</a>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 153 | from·<a·href="sup_princ.html#ex">Supervisor·Behaviour</a>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="8356286827-1">(</span><span·class="ss">ch_app</span><span·class="p"·data-group-id="8356286827-1">)</span><span·class="p">.</span><span·class="w"> |
| 154 | </span><span·class="p">-</span><span·class="na">behaviour</span><span·class="p"·data-group-id=" | 154 | </span><span·class="p">-</span><span·class="na">behaviour</span><span·class="p"·data-group-id="8356286827-2">(</span><span·class="ss">application</span><span·class="p"·data-group-id="8356286827-2">)</span><span·class="p">.</span><span·class="w"> |
| 155 | </span><span·class="w"> | 155 | </span><span·class="w"> |
| 156 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 156 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="8356286827-3">(</span><span·class="p"·data-group-id="8356286827-4">[</span><span·class="ss">start</span><span·class="p">/</span><span·class="mi">2</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">stop</span><span·class="p">/</span><sp[·...·truncated·by·diffoscope;·len:·116,·SHA:·aefe31bee8594a71ea689d70306ef193d8c045dc235956f42f1467c73466f20e·...·]-3">)</span><span·class="p">.</span><span·class="w"> |
| 157 | </span><span·class="nf">start</span><span·class="p"·data-group-id=" | 157 | </span><span·class="nf">start</span><span·class="p"·data-group-id="8356286827-5">(</span><span·class="p">_</span><span·class="n">Type</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="n">Args</span><span·class="p"·data-group-id="8356286827-5">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 158 | ····</span><span·class="nc">ch_sup</span><span·class="p">:</span><span·class="nf">start_link</span><span·class="p"·data-group-id=" | 158 | ····</span><span·class="nc">ch_sup</span><span·class="p">:</span><span·class="nf">start_link</span><span·class="p"·data-group-id="8356286827-6">(</span><span·class="p"·data-group-id="8356286827-6">)</span><span·class="p">.</span><span·class="w"> |
| 159 | </span><span·class="nf">stop</span><span·class="p"·data-group-id=" | 159 | </span><span·class="nf">stop</span><span·class="p"·data-group-id="8356286827-7">(</span><span·class="p">_</span><span·class="n">State</span><span·class="p"·data-group-id="8356286827-7">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 160 | ····</span><span·class="ss">ok</span><span·class="p">.</span></code></pre><p>A·library·application·that·cannot·be·started·or·stopped·does·not·need·any | 160 | ····</span><span·class="ss">ok</span><span·class="p">.</span></code></pre><p>A·library·application·that·cannot·be·started·or·stopped·does·not·need·any |
| 161 | application·callback·module.</p><p><a·href=""·id="appl_res_file"></a></p><h2·id="application-resource-file"·class="section-heading"> | 161 | application·callback·module.</p><p><a·href=""·id="appl_res_file"></a></p><h2·id="application-resource-file"·class="section-heading"> |
| 162 | ··<a·href="#application-resource-file"·class="hover-link"> | 162 | ··<a·href="#application-resource-file"·class="hover-link"> |
| 163 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 163 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 164 | ··</a> | 164 | ··</a> |
| 165 | ··<span·class="text">Application·Resource·File</span> | 165 | ··<span·class="text">Application·Resource·File</span> |
| 166 | </h2> | 166 | </h2> |
| Offset 173, 22 lines modified | Offset 173, 22 lines modified | ||
| 173 | keys.</li></ul><p>The·contents·of·a·minimal·<code·class="inline">.app</code>·file·for·a·library·application·<code·class="inline">libapp</code>·looks | 173 | keys.</li></ul><p>The·contents·of·a·minimal·<code·class="inline">.app</code>·file·for·a·library·application·<code·class="inline">libapp</code>·looks |
| 174 | as·follows:</p><pre><code·class="text">{application,·libapp,·[]}.</code></pre><p>The·contents·of·a·minimal·<code·class="inline">.app</code>·file·<code·class="inline">ch_app.app</code>·for·a·supervision·tree | 174 | as·follows:</p><pre><code·class="text">{application,·libapp,·[]}.</code></pre><p>The·contents·of·a·minimal·<code·class="inline">.app</code>·file·<code·class="inline">ch_app.app</code>·for·a·supervision·tree |
| 175 | application·like·<code·class="inline">ch_app</code>·looks·as·follows:</p><pre><code·class="text">{application,·ch_app, | 175 | application·like·<code·class="inline">ch_app</code>·looks·as·follows:</p><pre><code·class="text">{application,·ch_app, |
| 176 | ·[{mod,·{ch_app,[]}}]}.</code></pre><p>The·key·<code·class="inline">mod</code>·defines·the·callback·module·and·start·argument·of·the·application, | 176 | ·[{mod,·{ch_app,[]}}]}.</code></pre><p>The·key·<code·class="inline">mod</code>·defines·the·callback·module·and·start·argument·of·the·application, |
| 177 | in·this·case·<code·class="inline">ch_app</code>·and·<code·class="inline">[]</code>,·respectively.·This·means·that·the·following·is | 177 | in·this·case·<code·class="inline">ch_app</code>·and·<code·class="inline">[]</code>,·respectively.·This·means·that·the·following·is |
| 178 | called·when·the·application·is·to·be·started:</p><pre><code·class="text">ch_app:start(normal,·[])</code></pre><p>The·following·is·called·when·the·application·is·stopped:</p><pre><code·class="text">ch_app:stop([])</code></pre><p>When·using·<a·href="../../lib/sasl-4.3/doc/html/systools.html"><code·class="inline">systools</code></a>,·the·Erlang/OTP·tools·for·packaging·code·(see·Section | 178 | called·when·the·application·is·to·be·started:</p><pre><code·class="text">ch_app:start(normal,·[])</code></pre><p>The·following·is·called·when·the·application·is·stopped:</p><pre><code·class="text">ch_app:stop([])</code></pre><p>When·using·<a·href="../../lib/sasl-4.3/doc/html/systools.html"><code·class="inline">systools</code></a>,·the·Erlang/OTP·tools·for·packaging·code·(see·Section |
| 179 | <a·href="release_structure.html">Releases</a>),·the·keys·<code·class="inline">description</code>,·<code·class="inline">vsn</code>,·<code·class="inline">modules</code>, | 179 | <a·href="release_structure.html">Releases</a>),·the·keys·<code·class="inline">description</code>,·<code·class="inline">vsn</code>,·<code·class="inline">modules</code>, |
| 180 | <code·class="inline">registered</code>,·and·<code·class="inline">applications</code>·are·also·to·be·specified:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 180 | <code·class="inline">registered</code>,·and·<code·class="inline">applications</code>·are·also·to·be·specified:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="2266433338-1">{</span><span·class="ss">application</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">ch_app</span><span·class="p">,</span><span·class="w"> |
| 181 | ·</span><span·class="p"·data-group-id=" | 181 | ·</span><span·class="p"·data-group-id="2266433338-2">[</span><span·class="p"·data-group-id="2266433338-3">{</span><span·class="ss">description</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"Channel·allocator"</span><span·class="p"·data-group-id="2266433338-3">}</span><span·class="p">,</span><span·class="w"> |
| 182 | ··</span><span·class="p"·data-group-id=" | 182 | ··</span><span·class="p"·data-group-id="2266433338-4">{</span><span·class="ss">vsn</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"1"</span><span·class="p"·data-group-id="2266433338-4">}</span><span·class="p">,</span><span·class="w"> |
| 183 | ··</span><span·class="p"·data-group-id=" | 183 | ··</span><span·class="p"·data-group-id="2266433338-5">{</span><span·class="ss">modules</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2266433338-6">[</span><span·class="ss">ch_app</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">ch_sup<[·...·truncated·by·diffoscope;·len:·175,·SHA:·2c4e032fde39ff5e27d973dcc490d9bf30f4ed9136f639c9d1619f4767f854ff·...·]-5">}</span><span·class="p">,</span><span·class="w"> |
| 184 | ··</span><span·class="p"·data-group-id=" | 184 | ··</span><span·class="p"·data-group-id="2266433338-7">{</span><span·class="ss">registered</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2266433338-8">[</span><span·class="ss">ch3</span><span·class="p"·data-group-id="2266433338-8">]</span><span·class="p"·dat[·...·truncated·by·diffoscope;·len:·22,·SHA:·227100da53fa96227bf0f8b7b2674cfa1dcc50aa937287984c1418e8b2a282ec·...·]-7">}</span><span·class="p">,</span><span·class="w"> |
| 185 | ··</span><span·class="p"·data-group-id=" | 185 | ··</span><span·class="p"·data-group-id="2266433338-9">{</span><span·class="ss">applications</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2266433338-10">[</span><span·class="ss">kernel</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">s[·...·truncated·by·diffoscope;·len:·183,·SHA:·fd8f136033e270a9de8b6e8597f455be031ad0ff89031154c744fd5d3f7aaf59·...·]-9">}</span><span·class="p">,</span><span·class="w"> |
| 186 | ··</span><span·class="p"·data-group-id=" | 186 | ··</span><span·class="p"·data-group-id="2266433338-11">{</span><span·class="ss">mod</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2266433338-12">{</span><span·class="ss">ch_app</span><span·class="p">,</span><span·class="p"·data-group-id="2266433338-13">[</s[·...·truncated·by·diffoscope;·len:·153,·SHA:·017b2c56300b6b6e529ad3c88d79c3a243888b8ca197065864545b7d0ee02528·...·]-11">}</span><span·class="w"> |
| 187 | ·</span><span·class="p"·data-group-id=" | 187 | ·</span><span·class="p"·data-group-id="2266433338-2">]</span><span·class="p"·data-group-id="2266433338-1">}</span><span·class="p">.</span></code></pre><ul><li><code·class="inline">description</code>·-·A·short·description,·a·string.·Defaults·to·<code·class="inline">""</code>.</li><li><code·class="inline">vsn</code>·-·Version·number,·a·string.·Defaults·to·<code·class="inline">""</code>.</li><li><code·class="inline">modules</code>·-·All·modules·<em>introduced</em>·by·this·application.·<a·href="../../lib/sasl-4.3/doc/html/systools.html"><code·class="inline">systools</code></a>·uses |
| 188 | this·list·when·generating·boot·scripts·and·tar·files.·A·module·must·only | 188 | this·list·when·generating·boot·scripts·and·tar·files.·A·module·must·only |
| 189 | be·included·in·one·application.·Defaults·to·<code·class="inline">[]</code>.</li><li><code·class="inline">registered</code>·-·All·names·of·registered·processes·in·the·application. | 189 | be·included·in·one·application.·Defaults·to·<code·class="inline">[]</code>.</li><li><code·class="inline">registered</code>·-·All·names·of·registered·processes·in·the·application. |
| 190 | <a·href="../../lib/sasl-4.3/doc/html/systools.html"><code·class="inline">systools</code></a>·uses·this·list·to·detect·name·clashes·between·applications. | 190 | <a·href="../../lib/sasl-4.3/doc/html/systools.html"><code·class="inline">systools</code></a>·uses·this·list·to·detect·name·clashes·between·applications. |
| 191 | Defaults·to·<code·class="inline">[]</code>.</li><li><code·class="inline">applications</code>·-·All·applications·that·must·be·started·before·this | 191 | Defaults·to·<code·class="inline">[]</code>.</li><li><code·class="inline">applications</code>·-·All·applications·that·must·be·started·before·this |
| 192 | application·is·started.·<a·href="../../lib/sasl-4.3/doc/html/systools.html"><code·class="inline">systools</code></a>·uses·this·list·to·generate·correct·boot | 192 | application·is·started.·<a·href="../../lib/sasl-4.3/doc/html/systools.html"><code·class="inline">systools</code></a>·uses·this·list·to·generate·correct·boot |
| 193 | scripts.·Defaults·to·<code·class="inline">[]</code>.·Notice·that·all·applications·have·dependencies·to | 193 | scripts.·Defaults·to·<code·class="inline">[]</code>.·Notice·that·all·applications·have·dependencies·to |
| 194 | at·least·Kernel·and·STDLIB.</li></ul><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>For·details·about·the·syntax·and·contents·of·the·application·resource·file, | 194 | at·least·Kernel·and·STDLIB.</li></ul><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>For·details·about·the·syntax·and·contents·of·the·application·resource·file, |
| Offset 300, 38 lines modified | Offset 300, 38 lines modified | ||
| 300 | stop·applications.</p><h2·id="loading-and-unloading-applications"·class="section-heading"> | 300 | stop·applications.</p><h2·id="loading-and-unloading-applications"·class="section-heading"> |
| 301 | ··<a·href="#loading-and-unloading-applications"·class="hover-link"> | 301 | ··<a·href="#loading-and-unloading-applications"·class="hover-link"> |
| 302 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 302 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 303 | ··</a> | 303 | ··</a> |
| 304 | ··<span·class="text">Loading·and·Unloading·Applications</span> | 304 | ··<span·class="text">Loading·and·Unloading·Applications</span> |
| 305 | </h2> | 305 | </h2> |
| 306 | <p>Before·an·application·can·be·started,·it·must·be·<em>loaded</em>.·The·application | 306 | <p>Before·an·application·can·be·started,·it·must·be·<em>loaded</em>.·The·application |
| 307 | controller·reads·and·stores·the·information·from·the·<code·class="inline">.app</code>·file:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">application</span><span·class="p">:</span><span·class="nf">load</span><span·class="p"·data-group-id=" | 307 | controller·reads·and·stores·the·information·from·the·<code·class="inline">.app</code>·file:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">application</span><span·class="p">:</span><span·class="nf">load</span><span·class="p"·data-group-id="2224751489-1">(</span><span·class="ss">ch_app</span><span·class="p"·data-group-id="2224751489-1">)</span><span·class="p">.</span><span·class="w"> |
| 308 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> | 308 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> |
| 309 | 2>·</span><span·class="nc">application</span><span·class="p">:</span><span·class="nf">loaded_applications</span><span·class="p"·data-group-id=" | 309 | 2>·</span><span·class="nc">application</span><span·class="p">:</span><span·class="nf">loaded_applications</span><span·class="p"·data-group-id="2224751489-2">(</span><span·class="p"·data-group-id="2224751489-2">)</span><span·class="p">.</span><span·class="w"> |
| 310 | </span><span·class="p"·data-group-id=" | 310 | </span><span·class="p"·data-group-id="2224751489-3">[</span><span·class="p"·data-group-id="2224751489-4">{</span><span·class="ss">kernel</span><span·class="p">,</span><span·class="s">"ERTS··CXC·138·10"</span><span·class="p">,</span><span·class="s">"2.8.1.3"</span><span·clas[·...·truncated·by·diffoscope;·len:·31,·SHA:·ea8e3c2c44864980e9092fd0dca1c5613fccfb3c0b06fd3560a70b1e15991c35·...·]-4">}</span><span·class="p">,</span><span·class="w"> |
| 311 | ·</span><span·class="p"·data-group-id=" | 311 | ·</span><span·class="p"·data-group-id="2224751489-5">{</span><span·class="ss">stdlib</span><span·class="p">,</span><span·class="s">"ERTS··CXC·138·10"</span><span·class="p">,</span><span·class="s">"1.11.4.3"</span><span·class="p"·data-group-id="2224751489-5">}</span><span·class="p">,</span><span·class="w"> |
| 312 | ·</span><span·class="p"·data-group-id=" | 312 | ·</span><span·class="p"·data-group-id="2224751489-6">{</span><span·class="ss">ch_app</span><span·class="p">,</span><span·class="s">"Channel·allocator"</span><span·class="p">,</span><span·class="s">"1"</span><span·class="p"·data-group-id="2224751489-6">}</span><span·class="p"[·...·truncated·by·diffoscope;·len:·26,·SHA:·0f0b0077dbb9e6cf4c82c6c69f0adbb6545bec6aed493da8f5d21ed3f7259443·...·]-3">]</span></code></pre><p>An·application·that·has·been·stopped,·or·has·never·been·started,·can·be |
| 313 | unloaded.·The·information·about·the·application·is·erased·from·the·internal | 313 | unloaded.·The·information·about·the·application·is·erased·from·the·internal |
| 314 | database·of·the·application·controller.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">3>·</span><span·class="nc">application</span><span·class="p">:</span><span·class="nf">unload</span><span·class="p"·data-group-id=" | 314 | database·of·the·application·controller.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">3>·</span><span·class="nc">application</span><span·class="p">:</span><span·class="nf">unload</span><span·class="p"·data-group-id="8816619678-1">(</span><span·class="ss">ch_app</span><span·class="p"·data-group-id="8816619678-1">)</span><span·class="p">.</span><span·class="w"> |
| 315 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> | 315 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> |
| 316 | 4>·</span><span·class="nc">application</span><span·class="p">:</span><span·class="nf">loaded_applications</span><span·class="p"·data-group-id=" | 316 | 4>·</span><span·class="nc">application</span><span·class="p">:</span><span·class="nf">loaded_applications</span><span·class="p"·data-group-id="8816619678-2">(</span><span·class="p"·data-group-id="8816619678-2">)</span><span·class="p">.</span><span·class="w"> |
| 317 | </span><span·class="p"·data-group-id=" | 317 | </span><span·class="p"·data-group-id="8816619678-3">[</span><span·class="p"·data-group-id="8816619678-4">{</span><span·class="ss">kernel</span><span·class="p">,</span><span·class="s">"ERTS··CXC·138·10"</span><span·class="p">,</span><span·class="s">"2.8.1.3"</span><span·clas[·...·truncated·by·diffoscope;·len:·31,·SHA:·59e42312d9e315dcc265c1a3da7b5bf484db30b20a6983a990619cf8d2bd3918·...·]-4">}</span><span·class="p">,</span><span·class="w"> |
| 318 | ·</span><span·class="p"·data-group-id=" | 318 | ·</span><span·class="p"·data-group-id="8816619678-5">{</span><span·class="ss">stdlib</span><span·class="p">,</span><span·class="s">"ERTS··CXC·138·10"</span><span·class="p">,</span><span·class="s">"1.11.4.3"</span><span·class="p"·data-group-id="8816619678-5">}</span><span·cla[·...·truncated·by·diffoscope;·len:·32,·SHA:·4b1ec467b7fc4653df24199e57d3531c822c629d480b0c53b5f0034318ce01b6·...·]-3">]</span></code></pre><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>Loading/unloading·an·application·does·not·load/unload·the·code·used·by·the |
| 319 | application.·Code·loading·is·handled·in·the·usual·way·by·the·code·server.</p></section><p><a·href=""·id="stopping"></a></p><h2·id="starting-and-stopping-applications"·class="section-heading"> | 319 | application.·Code·loading·is·handled·in·the·usual·way·by·the·code·server.</p></section><p><a·href=""·id="stopping"></a></p><h2·id="starting-and-stopping-applications"·class="section-heading"> |
| 320 | ··<a·href="#starting-and-stopping-applications"·class="hover-link"> | 320 | ··<a·href="#starting-and-stopping-applications"·class="hover-link"> |
| 321 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 321 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 322 | ··</a> | 322 | ··</a> |
| 323 | ··<span·class="text">Starting·and·Stopping·Applications</span> | 323 | ··<span·class="text">Starting·and·Stopping·Applications</span> |
| 324 | </h2> | 324 | </h2> |
| 325 | <p>An·application·is·started·by·calling:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">5>·</span><span·class="nc">application</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id=" | 325 | <p>An·application·is·started·by·calling:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">5>·</span><span·class="nc">application</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id="9895029619-1">(</span><span·class="ss">ch_app</span><span·class="p"·data-group-id="9895029619-1">)</span><span·class="p">.</span><span·class="w"> |
| 326 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> | 326 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> |
| 327 | 6>·</span><span·class="nc">application</span><span·class="p">:</span><span·class="nf">which_applications</span><span·class="p"·data-group-id=" | 327 | 6>·</span><span·class="nc">application</span><span·class="p">:</span><span·class="nf">which_applications</span><span·class="p"·data-group-id="9895029619-2">(</span><span·class="p"·data-group-id="9895029619-2">)</span><span·class="p">.</span><span·class="w"> |
| 328 | </span><span·class="p"·data-group-id=" | 328 | </span><span·class="p"·data-group-id="9895029619-3">[</span><span·class="p"·data-group-id="9895029619-4">{</span><span·class="ss">kernel</span><span·class="p">,</span><span·class="s">"ERTS··CXC·138·10"</span><span·class="p">,</span><span·class="s">"2.8.1.3"</span><span·clas[·...·truncated·by·diffoscope;·len:·31,·SHA:·1625d09d10e0907cbc02e9487915961c64a4e72f32debd01d448bb9c6b3da7e7·...·]-4">}</span><span·class="p">,</span><span·class="w"> |
| 329 | ·</span><span·class="p"·data-group-id=" | 329 | ·</span><span·class="p"·data-group-id="9895029619-5">{</span><span·class="ss">stdlib</span><span·class="p">,</span><span·class="s">"ERTS··CXC·138·10"</span><span·class="p">,</span><span·class="s">"1.11.4.3"</span><span·class="p"·data-group-id="9895029619-5">}</span><span·class="p">,</span><span·class="w"> |
| 330 | ·</span><span·class="p"·data-group-id=" | 330 | ·</span><span·class="p"·data-group-id="9895029619-6">{</span><span·class="ss">ch_app</span><span·class="p">,</span><span·class="s">"Channel·allocator"</span><span·class="p">,</span><span·class="s">"1"</span><span·class="p"·data-group-id="9895029619-6">}</span><span·class="p"[·...·truncated·by·diffoscope;·len:·26,·SHA:·9a5c511d4f02291a7103235efa72380658e14078492b921cb48fc13bf0691278·...·]-3">]</span></code></pre><p>If·the·application·is·not·already·loaded,·the·application·controller·first·loads |
| 331 | it·using·<a·href="../../lib/kernel-10.3/doc/html/application.html#load/1"><code·class="inline">application:load/1</code></a>.·It·checks·the·value·of·the·<code·class="inline">applications</code>·key·to | 331 | it·using·<a·href="../../lib/kernel-10.3/doc/html/application.html#load/1"><code·class="inline">application:load/1</code></a>.·It·checks·the·value·of·the·<code·class="inline">applications</code>·key·to |
| 332 | ensure·that·all·applications·that·are·to·be·started·before·this·application·are | 332 | ensure·that·all·applications·that·are·to·be·started·before·this·application·are |
| 333 | running.</p><p><a·href=""·id="application_master"></a></p><p>Following·that,·the·application·controller·creates·an·<em>application·master</em>·for | 333 | running.</p><p><a·href=""·id="application_master"></a></p><p>Following·that,·the·application·controller·creates·an·<em>application·master</em>·for |
| 334 | the·application.</p><p>The·application·master·establishes·itself·as·the·<a·href="../../erts-16.0/doc/html/erlang.html#group_leader/0">group | 334 | the·application.</p><p>The·application·master·establishes·itself·as·the·<a·href="../../erts-16.0/doc/html/erlang.html#group_leader/0">group |
| 335 | leader</a>·of·all·processes·in·the·application | 335 | leader</a>·of·all·processes·in·the·application |
| 336 | and·will·forward·I/O·to·the·previous·group·leader.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>The·purpose·of·the·application·master·being·the·group·leader·is·to·easily | 336 | and·will·forward·I/O·to·the·previous·group·leader.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>The·purpose·of·the·application·master·being·the·group·leader·is·to·easily |
| 337 | keep·track·of·which·processes·that·belong·to·the·application.·That·is·needed | 337 | keep·track·of·which·processes·that·belong·to·the·application.·That·is·needed |
| Offset 347, 55 lines modified | Offset 347, 55 lines modified | ||
| 347 | defined·by·the·<code·class="inline">mod</code>·key.</p><h2·id="configuring-an-application"·class="section-heading"> | 347 | defined·by·the·<code·class="inline">mod</code>·key.</p><h2·id="configuring-an-application"·class="section-heading"> |
| 348 | ··<a·href="#configuring-an-application"·class="hover-link"> | 348 | ··<a·href="#configuring-an-application"·class="hover-link"> |
| 349 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 349 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 350 | ··</a> | 350 | ··</a> |
| 351 | ··<span·class="text">Configuring·an·Application</span> | 351 | ··<span·class="text">Configuring·an·Application</span> |
| 352 | </h2> | 352 | </h2> |
| 353 | <p>An·application·can·be·configured·using·<em>configuration·parameters</em>.·These·are·a | 353 | <p>An·application·can·be·configured·using·<em>configuration·parameters</em>.·These·are·a |
| 354 | list·of·<code·class="inline">{Par,Val}</code>·tuples·specified·by·a·key·<code·class="inline">env</code>·in·the·<code·class="inline">.app</code>·file:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 354 | list·of·<code·class="inline">{Par,Val}</code>·tuples·specified·by·a·key·<code·class="inline">env</code>·in·the·<code·class="inline">.app</code>·file:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="2633815801-1">{</span><span·class="ss">application</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">ch_app</span><span·class="p">,</span><span·class="w"> |
| 355 | ·</span><span·class="p"·data-group-id=" | 355 | ·</span><span·class="p"·data-group-id="2633815801-2">[</span><span·class="p"·data-group-id="2633815801-3">{</span><span·class="ss">description</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"Channel·allocator"</span><span·class="p"·data-group-id="2633815801-3">}</span><span·class="p">,</span><span·class="w"> |
| 356 | ··</span><span·class="p"·data-group-id=" | 356 | ··</span><span·class="p"·data-group-id="2633815801-4">{</span><span·class="ss">vsn</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"1"</span><span·class="p"·data-group-id="2633815801-4">}</span><span·class="p">,</span><span·class="w"> |
| 357 | ··</span><span·class="p"·data-group-id=" | 357 | ··</span><span·class="p"·data-group-id="2633815801-5">{</span><span·class="ss">modules</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2633815801-6">[</span><span·class="ss">ch_app</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">ch_sup<[·...·truncated·by·diffoscope;·len:·175,·SHA:·b668c95950083d10889d8cf8f431b4f7f449c2978da1c8427d5466f8a57dd2d6·...·]-5">}</span><span·class="p">,</span><span·class="w"> |
| 358 | ··</span><span·class="p"·data-group-id=" | 358 | ··</span><span·class="p"·data-group-id="2633815801-7">{</span><span·class="ss">registered</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2633815801-8">[</span><span·class="ss">ch3</span><span·class="p"·data-group-id="2633815801-8">]</span><span·class="p"·dat[·...·truncated·by·diffoscope;·len:·22,·SHA:·a47172648f905023b287380d4b1b3bd35ddfbefe509161b8a690a229a9ee420a·...·]-7">}</span><span·class="p">,</span><span·class="w"> |
| 359 | ··</span><span·class="p"·data-group-id=" | 359 | ··</span><span·class="p"·data-group-id="2633815801-9">{</span><span·class="ss">applications</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2633815801-10">[</span><span·class="ss">kernel</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">s[·...·truncated·by·diffoscope;·len:·183,·SHA:·211d7212a4932c3a1bd9f20e37565505a9364ff78512c3502ceceb9e48a54623·...·]-9">}</span><span·class="p">,</span><span·class="w"> |
| 360 | ··</span><span·class="p"·data-group-id=" | 360 | ··</span><span·class="p"·data-group-id="2633815801-11">{</span><span·class="ss">mod</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2633815801-12">{</span><span·class="ss">ch_app</span><span·class="p">,</span><span·class="p"·data-group-id="2633815801-13">[</s[·...·truncated·by·diffoscope;·len:·153,·SHA:·8017ca5a7619cf88d4c58e2487b710ebe5f8a66134017d65db7f31275a03092f·...·]-11">}</span><span·class="p">,</span><span·class="w"> |
| 361 | ··</span><span·class="p"·data-group-id=" | 361 | ··</span><span·class="p"·data-group-id="2633815801-14">{</span><span·class="ss">env</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2633815801-15">[</span><span·class="p"·data-group-id="2633815801-16">{</span><span·class="ss">file</span><span·class="p">,</spa[·...·truncated·by·diffoscope;·len:·224,·SHA:·d305e855ca166dee09082909b2e41aae828c4aa303a2f5b225ada992dedead08·...·]-14">}</span><span·class="w"> |
| 362 | ·</span><span·class="p"·data-group-id=" | 362 | ·</span><span·class="p"·data-group-id="2633815801-2">]</span><span·class="p"·data-group-id="2633815801-1">}</span><span·class="p">.</span></code></pre><p><code·class="inline">Par</code>·is·to·be·an·atom.·<code·class="inline">Val</code>·is·any·term.·The·application·can·retrieve·the |
| 363 | value·of·a·configuration·parameter·by·calling·<code·class="inline">application:get_env(App,·Par)</code>·or | 363 | value·of·a·configuration·parameter·by·calling·<code·class="inline">application:get_env(App,·Par)</code>·or |
| 364 | a·number·of·similar·functions.·For·more·information,·see·module·<a·href="../../lib/kernel-10.3/doc/html/application.html"><code·class="inline">application</code></a> | 364 | a·number·of·similar·functions.·For·more·information,·see·module·<a·href="../../lib/kernel-10.3/doc/html/application.html"><code·class="inline">application</code></a> |
| 365 | in·Kernel.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%·erl</span><span·class="w"> | 365 | in·Kernel.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%·erl</span><span·class="w"> |
| 366 | </span><span·class="n">Erlang</span><span·class="w">·</span><span·class="p"·data-group-id=" | 366 | </span><span·class="n">Erlang</span><span·class="w">·</span><span·class="p"·data-group-id="2703383741-1">(</span><span·class="n">BEAM</span><span·class="p"·data-group-id="2703383741-1">)</span><span·class="w">·</span><span·class="ss">emulator</span><span·class="w">·</span><span·class="ss">version</span><span·class="w">·</span><span·class="mf">5.[·...·truncated·by·diffoscope;·len:·415,·SHA:·60227267b1fd7e065cc50ec229f40927bd11714ccaa20c15db97e7842f6dd473·...·]-3">]</span><span·class="w"> |
| 367 | </span><span·class="n">Eshell</span><span·class="w">·</span><span·class="n">V5</span><span·class="p">.</span><span·class="mf">2.3</span><span·class="p">.</span><span·class="mi">6</span><span·class="w">··</span><span·class="p"·data-group-id=" | 367 | </span><span·class="n">Eshell</span><span·class="w">·</span><span·class="n">V5</span><span·class="p">.</span><span·class="mf">2.3</span><span·class="p">.</span><span·class="mi">6</span><span·class="w">··</span><span·class="p"·data-group-id="2703383741-4">(</span><span·class="ss">abort</span><span·class="w">·</span><span·class="ss">with</span><span·class="w">·</span><span·class="err">^</span><span·class="n">G</span><span·class="p"·data-group-id="2703383741-4">)</span><span·class="gp·unselectable"> |
| 368 | 1>·</span><span·class="nc">application</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id=" | 368 | 1>·</span><span·class="nc">application</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id="2703383741-5">(</span><span·class="ss">ch_app</span><span·class="p"·data-group-id="2703383741-5">)</span><span·class="p">.</span><span·class="w"> |
| 369 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> | 369 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> |
| 370 | 2>·</span><span·class="nc">application</span><span·class="p">:</span><span·class="nf">get_env</span><span·class="p"·data-group-id=" | 370 | 2>·</span><span·class="nc">application</span><span·class="p">:</span><span·class="nf">get_env</span><span·class="p"·data-group-id="2703383741-6">(</span><span·class="ss">ch_app</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">file</span><span·class="p"·data-group-id="2703383741-6">)</span><span·class="p">.</span><span·class="w"> |
| 371 | </span><span·class="p"·data-group-id=" | 371 | </span><span·class="p"·data-group-id="2703383741-7">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="s">"/usr/local/log"</span><span·class="p"·data-group-id="2703383741-7">}</span></code></pre><p>The·values·in·the·<code·class="inline">.app</code>·file·can·be·overridden·by·values·in·a·<em>system |
| 372 | configuration·file</em>.·This·is·a·file·that·contains·configuration·parameters·for | 372 | configuration·file</em>.·This·is·a·file·that·contains·configuration·parameters·for |
| 373 | relevant·applications:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 373 | relevant·applications:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="0766318378-1">[</span><span·class="p"·data-group-id="0766318378-2">{</span><span·class="n">Application1</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0766318378-3">[</span><span·class="p"·data-group-id="0766318378-4">[·...·truncated·by·diffoscope;·len:·331,·SHA:·a7d9bc6f2e9b8a3b90f2c31f714631ab5382c09ffc75e0a372b1e11a987ffff5·...·]-2">}</span><span·class="p">,</span><span·class="w"> |
| 374 | ·</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p">,</span><span·class="w"> | 374 | ·</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p">,</span><span·class="w"> |
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| 120 | ··<a·href="#changing-a-functional-module"·class="hover-link"> | 120 | ··<a·href="#changing-a-functional-module"·class="hover-link"> |
| 121 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 121 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 122 | ··</a> | 122 | ··</a> |
| 123 | ··<span·class="text">Changing·a·Functional·Module</span> | 123 | ··<span·class="text">Changing·a·Functional·Module</span> |
| 124 | </h2> | 124 | </h2> |
| 125 | <p>When·a·functional·module·has·been·changed,·for·example,·if·a·new·function·has | 125 | <p>When·a·functional·module·has·been·changed,·for·example,·if·a·new·function·has |
| 126 | been·added·or·a·bug·has·been·corrected,·simple·code·replacement·is·sufficient, | 126 | been·added·or·a·bug·has·been·corrected,·simple·code·replacement·is·sufficient, |
| 127 | for·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 127 | for·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="1763379172-1">{</span><span·class="s">"2"</span><span·class="p">,</span><span·class="w"> |
| 128 | ·</span><span·class="p"·data-group-id="3606982473-2">[</span><span·class="p"·data-group-id="3606982473-3">{</span><span·class="s">"1"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3606982473-4">[</span><span·class="p"·data-group-id="3606982473-5">{</span><span·class="nb">load_module</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">m</span><span·class="p"·data-group-id="3606982473-5">}</span><span·class="p"·data-group-id="3606982473-4">]</span><span·class="p"·data-group-id="3606982473-3">}</span><span·class="p"·data-group-id="3606982473-2">]</span><span·class="p">,</span><span·class="w"> | ||
| 129 | ·</span><span·class="p"·data-group-id=" | 128 | ·</span><span·class="p"·data-group-id="1763379172-2">[</span><span·class="p"·data-group-id="1763379172-3">{</span><span·class="s">"1"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1763379172-4">[</span><span·class="p"·data-group-id="1763379172-5"[·...·truncated·by·diffoscope;·len:·346,·SHA:·fd657fa3689c3ffc6105289e58e18e0dac02aa80ef286840bde0fa20041d0532·...·]</span><span·class="w"> |
| 129 | ·</span><span·class="p"·data-group-id="1763379172-6">[</span><span·class="p"·data-group-id="1763379172-7">{</span><span·class="s">"1"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1763379172-8">[</span><span·class="p"·data-group-id="1763379172-9">{</span><span·class="nb">load_module</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">m</span><span·class="p"·data-group-id="1763379172-9">}</span><span·class="p"·data-group-id="1763379172-8">]</span><span·class="p"·data-group-id="1763379172-7">}</span><span·class="p"·data-group-id="1763379172-6">]</span><span·class="w"> | ||
| 130 | </span><span·class="p"·data-group-id=" | 130 | </span><span·class="p"·data-group-id="1763379172-1">}</span><span·class="p">.</span></code></pre><h2·id="changing-a-residence-module"·class="section-heading"> |
| 131 | ··<a·href="#changing-a-residence-module"·class="hover-link"> | 131 | ··<a·href="#changing-a-residence-module"·class="hover-link"> |
| 132 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 132 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 133 | ··</a> | 133 | ··</a> |
| 134 | ··<span·class="text">Changing·a·Residence·Module</span> | 134 | ··<span·class="text">Changing·a·Residence·Module</span> |
| 135 | </h2> | 135 | </h2> |
| 136 | <p>In·a·system·implemented·according·to·the·OTP·design·principles,·all·processes, | 136 | <p>In·a·system·implemented·according·to·the·OTP·design·principles,·all·processes, |
| 137 | except·system·processes·and·special·processes,·reside·in·one·of·the·behaviours | 137 | except·system·processes·and·special·processes,·reside·in·one·of·the·behaviours |
| Offset 142, 46 lines modified | Offset 142, 46 lines modified | ||
| 142 | ··<a·href="#changing-a-callback-module"·class="hover-link"> | 142 | ··<a·href="#changing-a-callback-module"·class="hover-link"> |
| 143 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 143 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 144 | ··</a> | 144 | ··</a> |
| 145 | ··<span·class="text">Changing·a·Callback·Module</span> | 145 | ··<span·class="text">Changing·a·Callback·Module</span> |
| 146 | </h2> | 146 | </h2> |
| 147 | <p>A·callback·module·is·a·functional·module,·and·for·code·extensions·simple·code | 147 | <p>A·callback·module·is·a·functional·module,·and·for·code·extensions·simple·code |
| 148 | replacement·is·sufficient.</p><p><em>Example</em></p><p>When·adding·a·function·to·<code·class="inline">ch3</code>,·as·described·in·the·example·in | 148 | replacement·is·sufficient.</p><p><em>Example</em></p><p>When·adding·a·function·to·<code·class="inline">ch3</code>,·as·described·in·the·example·in |
| 149 | <a·href="release_handling.html#appup">Release·Handling</a>,·<code·class="inline">ch_app.appup</code>·looks·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 149 | <a·href="release_handling.html#appup">Release·Handling</a>,·<code·class="inline">ch_app.appup</code>·looks·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="8597273319-1">{</span><span·class="s">"2"</span><span·class="p">,</span><span·class="w"> |
| 150 | ·</span><span·class="p"·data-group-id="3431398261-2">[</span><span·class="p"·data-group-id="3431398261-3">{</span><span·class="s">"1"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3431398261-4">[</span><span·class="p"·data-group-id="3431398261-5">{</span><span·class="nb">load_module</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">ch3</span><span·class="p"·data-group-id="3431398261-5">}</span><span·class="p"·data-group-id="3431398261-4">]</span><span·class="p"·data-group-id="3431398261-3">}</span><span·class="p"·data-group-id="3431398261-2">]</span><span·class="p">,</span><span·class="w"> | ||
| 151 | ·</span><span·class="p"·data-group-id=" | 150 | ·</span><span·class="p"·data-group-id="8597273319-2">[</span><span·class="p"·data-group-id="8597273319-3">{</span><span·class="s">"1"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8597273319-4">[</span><span·class="p"·data-group-id="8597273319-5"[·...·truncated·by·diffoscope;·len:·348,·SHA:·519354ca7bd3910929afad471171d9bf2689aebdeda94e54270fa85adb3a274e·...·]</span><span·class="w"> |
| 151 | ·</span><span·class="p"·data-group-id="8597273319-6">[</span><span·class="p"·data-group-id="8597273319-7">{</span><span·class="s">"1"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8597273319-8">[</span><span·class="p"·data-group-id="8597273319-9">{</span><span·class="nb">load_module</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">ch3</span><span·class="p"·data-group-id="8597273319-9">}</span><span·class="p"·data-group-id="8597273319-8">]</span><span·class="p"·data-group-id="8597273319-7">}</span><span·class="p"·data-group-id="8597273319-6">]</span><span·class="w"> | ||
| 152 | </span><span·class="p"·data-group-id=" | 152 | </span><span·class="p"·data-group-id="8597273319-1">}</span><span·class="p">.</span></code></pre><p>OTP·also·supports·changing·the·internal·state·of·behaviour·processes;·see |
| 153 | <a·href="appup_cookbook.html#int_state">Changing·Internal·State</a>.</p><p><a·href=""·id="int_state"></a></p><h2·id="changing-internal-state"·class="section-heading"> | 153 | <a·href="appup_cookbook.html#int_state">Changing·Internal·State</a>.</p><p><a·href=""·id="int_state"></a></p><h2·id="changing-internal-state"·class="section-heading"> |
| 154 | ··<a·href="#changing-internal-state"·class="hover-link"> | 154 | ··<a·href="#changing-internal-state"·class="hover-link"> |
| 155 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 155 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 156 | ··</a> | 156 | ··</a> |
| 157 | ··<span·class="text">Changing·Internal·State</span> | 157 | ··<span·class="text">Changing·Internal·State</span> |
| 158 | </h2> | 158 | </h2> |
| 159 | <p>In·this·case,·simple·code·replacement·is·not·sufficient.·The·process·must | 159 | <p>In·this·case,·simple·code·replacement·is·not·sufficient.·The·process·must |
| 160 | explicitly·transform·its·state·using·the·callback·function·<code·class="inline">code_change/3</code>·before | 160 | explicitly·transform·its·state·using·the·callback·function·<code·class="inline">code_change/3</code>·before |
| 161 | switching·to·the·new·version·of·the·callback·module.·Thus,·synchronized·code | 161 | switching·to·the·new·version·of·the·callback·module.·Thus,·synchronized·code |
| 162 | replacement·is·used.</p><p><em>Example</em></p><p>Consider·the·<code·class="inline">ch3</code>·module·from | 162 | replacement·is·used.</p><p><em>Example</em></p><p>Consider·the·<code·class="inline">ch3</code>·module·from |
| 163 | <a·href="gen_server_concepts.html#ex">gen_server·Behaviour</a>.·The·internal·state·is·a·term | 163 | <a·href="gen_server_concepts.html#ex">gen_server·Behaviour</a>.·The·internal·state·is·a·term |
| 164 | <code·class="inline">Chs</code>·representing·the·available·channels.·Assume·you·want·to·add·a·counter·<code·class="inline">N</code>, | 164 | <code·class="inline">Chs</code>·representing·the·available·channels.·Assume·you·want·to·add·a·counter·<code·class="inline">N</code>, |
| 165 | which·keeps·track·of·the·number·of·<code·class="inline">alloc</code>·requests·so·far.·This·means·that·the | 165 | which·keeps·track·of·the·number·of·<code·class="inline">alloc</code>·requests·so·far.·This·means·that·the |
| 166 | format·must·be·changed·to·<code·class="inline">{Chs,N}</code>.</p><p>The·<code·class="inline">.appup</code>·file·can·look·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 166 | format·must·be·changed·to·<code·class="inline">{Chs,N}</code>.</p><p>The·<code·class="inline">.appup</code>·file·can·look·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="8732029737-1">{</span><span·class="s">"2"</span><span·class="p">,</span><span·class="w"> |
| 167 | ·</span><span·class="p"·data-group-id=" | 167 | ·</span><span·class="p"·data-group-id="8732029737-2">[</span><span·class="p"·data-group-id="8732029737-3">{</span><span·class="s">"1"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8732029737-4">[</span><span·class="p"·data-group-id="8732029737-5"[·...·truncated·by·diffoscope;·len:·654,·SHA:·1b4144433dd033e4a24fa464911182443f801fb18fa43abd47bd76ccd385b8ee·...·]-2">]</span><span·class="p">,</span><span·class="w"> |
| 168 | ·</span><span·class="p"·data-group-id=" | 168 | ·</span><span·class="p"·data-group-id="8732029737-8">[</span><span·class="p"·data-group-id="8732029737-9">{</span><span·class="s">"1"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8732029737-10">[</span><span·class="p"·data-group-id="8732029737-1[·...·truncated·by·diffoscope;·len:·662,·SHA:·a41bbe83a4f9a274f8e72696ccd29fe3eab414140ecd1801cb88dc085baa3156·...·]-8">]</span><span·class="w"> |
| 169 | </span><span·class="p"·data-group-id=" | 169 | </span><span·class="p"·data-group-id="8732029737-1">}</span><span·class="p">.</span></code></pre><p>The·third·element·of·the·<code·class="inline">update</code>·instruction·is·a·tuple·<code·class="inline">{advanced,Extra}</code>, |
| 170 | which·says·that·the·affected·processes·are·to·do·a·state·transformation·before | 170 | which·says·that·the·affected·processes·are·to·do·a·state·transformation·before |
| 171 | loading·the·new·version·of·the·module.·This·is·done·by·the·processes·calling·the | 171 | loading·the·new·version·of·the·module.·This·is·done·by·the·processes·calling·the |
| 172 | callback·function·<code·class="inline">code_change/3</code>·(see·<a·href="../../lib/stdlib-7.0/doc/html/gen_server.html"><code·class="inline">gen_server</code></a>·in·STDLIB). | 172 | callback·function·<code·class="inline">code_change/3</code>·(see·<a·href="../../lib/stdlib-7.0/doc/html/gen_server.html"><code·class="inline">gen_server</code></a>·in·STDLIB). |
| 173 | The·term·<code·class="inline">Extra</code>,·in·this·case·<code·class="inline">[]</code>,·is·passed·as·is·to·the·function:</p><p><a·href=""·id="code_change"></a></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 173 | The·term·<code·class="inline">Extra</code>,·in·this·case·<code·class="inline">[]</code>,·is·passed·as·is·to·the·function:</p><p><a·href=""·id="code_change"></a></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="0704829148-1">(</span><span·class="ss">ch3</span><span·class="p"·data-group-id="0704829148-1">)</span><span·class="p">.</span><span·class="w"> |
| 174 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> | 174 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> |
| 175 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 175 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="0704829148-2">(</span><span·class="p"·data-group-id="0704829148-3">[</span><span·class="ss">code_change</span><span·class="p">/</span><span·class="mi">3</span><span·class="p"·data-group-id="0704829148-3">]</span><span·class="p"·data-group-id="0704829148-2">)</span><span·class="p">.</span><span·class="w"> |
| 176 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> | 176 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> |
| 177 | </span><span·class="nf">code_change</span><span·class="p"·data-group-id=" | 177 | </span><span·class="nf">code_change</span><span·class="p"·data-group-id="0704829148-4">(</span><span·class="p"·data-group-id="0704829148-5">{</span><span·class="ss">down</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="n">Vsn</span><span·class="p"·data-group-id="0704829148-5">}</span><s[·...·truncated·by·diffoscope;·len:·391,·SHA:·93585b75eb24b91a5e989cf73d7043e7131e9fa53fe805301443804c276c7d92·...·]-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 178 | ····</span><span·class="p"·data-group-id=" | 178 | ····</span><span·class="p"·data-group-id="0704829148-7">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Chs</span><span·class="p"·data-group-id="0704829148-7">}</span><span·class="p">;</span><span·class="w"> |
| 179 | </span><span·class="nf">code_change</span><span·class="p"·data-group-id=" | 179 | </span><span·class="nf">code_change</span><span·class="p"·data-group-id="0704829148-8">(</span><span·class="p">_</span><span·class="n">Vsn</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Chs</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="n">Extra</span><span·clas[·...·truncated·by·diffoscope;·len:·31,·SHA:·f76b5713931d13426f13d2a463de0a76311b208913cdc2d37596b9253bf1f60a·...·]-8">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 180 | ····</span><span·class="p"·data-group-id=" | 180 | ····</span><span·class="p"·data-group-id="0704829148-9">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0704829148-10">{</span><span·class="n">Chs</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">0</span><span·c[·...·truncated·by·diffoscope;·len:·88,·SHA:·70af4a6149c87eed7d6edd012228a1e425c62100beea44a2a6833531e64ed5fc·...·]-9">}</span><span·class="p">.</span></code></pre><p>The·first·argument·is·<code·class="inline">{down,Vsn}</code>·if·there·is·a·downgrade,·or·<code·class="inline">Vsn</code>·if·there·is |
| 181 | a·upgrade.·The·term·<code·class="inline">Vsn</code>·is·fetched·from·the·'original'·version·of·the·module, | 181 | a·upgrade.·The·term·<code·class="inline">Vsn</code>·is·fetched·from·the·'original'·version·of·the·module, |
| 182 | that·is,·the·version·you·are·upgrading·from,·or·downgrading·to.</p><p>The·version·is·defined·by·the·module·attribute·<code·class="inline">vsn</code>,·if·any.·There·is·no·such | 182 | that·is,·the·version·you·are·upgrading·from,·or·downgrading·to.</p><p>The·version·is·defined·by·the·module·attribute·<code·class="inline">vsn</code>,·if·any.·There·is·no·such |
| 183 | attribute·in·<code·class="inline">ch3</code>,·so·in·this·case·the·version·is·the·checksum·(a·huge·integer) | 183 | attribute·in·<code·class="inline">ch3</code>,·so·in·this·case·the·version·is·the·checksum·(a·huge·integer) |
| 184 | of·the·beam·file,·an·uninteresting·value,·which·is·ignored.</p><p>The·other·callback·functions·of·<code·class="inline">ch3</code>·must·also·be·modified·and·perhaps·a·new | 184 | of·the·beam·file,·an·uninteresting·value,·which·is·ignored.</p><p>The·other·callback·functions·of·<code·class="inline">ch3</code>·must·also·be·modified·and·perhaps·a·new |
| 185 | interface·function·must·be·added,·but·this·is·not·shown·here.</p><h2·id="module-dependencies"·class="section-heading"> | 185 | interface·function·must·be·added,·but·this·is·not·shown·here.</p><h2·id="module-dependencies"·class="section-heading"> |
| 186 | ··<a·href="#module-dependencies"·class="hover-link"> | 186 | ··<a·href="#module-dependencies"·class="hover-link"> |
| 187 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 187 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 190, 67 lines modified | Offset 190, 67 lines modified | ||
| 190 | </h2> | 190 | </h2> |
| 191 | <p>Assume·that·a·module·is·extended·by·adding·an·interface·function,·as·in·the | 191 | <p>Assume·that·a·module·is·extended·by·adding·an·interface·function,·as·in·the |
| 192 | example·in·<a·href="release_handling.html#appup">Release·Handling</a>,·where·a·function | 192 | example·in·<a·href="release_handling.html#appup">Release·Handling</a>,·where·a·function |
| 193 | <code·class="inline">available/0</code>·is·added·to·<code·class="inline">ch3</code>.</p><p>If·a·call·is·added·to·this·function,·say·in·module·<code·class="inline">m1</code>,·a·runtime·error·could | 193 | <code·class="inline">available/0</code>·is·added·to·<code·class="inline">ch3</code>.</p><p>If·a·call·is·added·to·this·function,·say·in·module·<code·class="inline">m1</code>,·a·runtime·error·could |
| 194 | can·occur·during·release·upgrade·if·the·new·version·of·<code·class="inline">m1</code>·is·loaded·first·and | 194 | can·occur·during·release·upgrade·if·the·new·version·of·<code·class="inline">m1</code>·is·loaded·first·and |
| 195 | calls·<code·class="inline">ch3:available/0</code>·before·the·new·version·of·<code·class="inline">ch3</code>·is·loaded.</p><p>Thus,·<code·class="inline">ch3</code>·must·be·loaded·before·<code·class="inline">m1</code>,·in·the·upgrade·case,·and·conversely·in | 195 | calls·<code·class="inline">ch3:available/0</code>·before·the·new·version·of·<code·class="inline">ch3</code>·is·loaded.</p><p>Thus,·<code·class="inline">ch3</code>·must·be·loaded·before·<code·class="inline">m1</code>,·in·the·upgrade·case,·and·conversely·in |
| 196 | the·downgrade·case.·<code·class="inline">m1</code>·is·said·to·be·<em>dependent·on</em>·<code·class="inline">ch3</code>.·In·a·release | 196 | the·downgrade·case.·<code·class="inline">m1</code>·is·said·to·be·<em>dependent·on</em>·<code·class="inline">ch3</code>.·In·a·release |
| 197 | handling·instruction,·this·is·expressed·by·the·<code·class="inline">DepMods</code>·element:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="0 | 197 | handling·instruction,·this·is·expressed·by·the·<code·class="inline">DepMods</code>·element:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="0824777034-1">{</span><span·class="nb">load_module</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Module</span><span·class="p">,</span><span·class="w">·</span><span·class="n">DepMods</span><span·class="p"·data-group-id="0824777034-1">}</span><span·class="w"> |
| 198 | </span><span·class="p"·data-group-id="0 | 198 | </span><span·class="p"·data-group-id="0824777034-2">{</span><span·class="ss">update</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Module</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0824777034-3">{</span><span·class="ss">advanced</[·...·truncated·by·diffoscope;·len:·253,·SHA:·66290d21ba19b50faab9c389b2c80224b8a70800c9001bc7829aecd8db356b59·...·]-2">}</span></code></pre><p><code·class="inline">DepMods</code>·is·a·list·of·modules,·on·which·<code·class="inline">Module</code>·is·dependent.</p><p><em>Example</em></p><p>The·module·<code·class="inline">m1</code>·in·application·<code·class="inline">myapp</code>·is·dependent·on·<code·class="inline">ch3</code>·when |
| 199 | upgrading·from·"1"·to·"2",·or·downgrading·from·"2"·to·"1":</p><pre><code·class="makeup·erlang"·translate="no"><span·class="ss">myapp</span><span·class="p">.</span><span·class="nc">appup</span><span·class="p">:</span><span·class="w"> | 199 | upgrading·from·"1"·to·"2",·or·downgrading·from·"2"·to·"1":</p><pre><code·class="makeup·erlang"·translate="no"><span·class="ss">myapp</span><span·class="p">.</span><span·class="nc">appup</span><span·class="p">:</span><span·class="w"> |
| 200 | </span><span·class="p"·data-group-id=" | 200 | </span><span·class="p"·data-group-id="8566981987-1">{</span><span·class="s">"2"</span><span·class="p">,</span><span·class="w"> |
| 201 | ·</span><span·class="p"·data-group-id=" | 201 | ·</span><span·class="p"·data-group-id="8566981987-2">[</span><span·class="p"·data-group-id="8566981987-3">{</span><span·class="s">"1"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8566981987-4">[</span><span·class="p"·data-group-id="8566981987-5"[·...·truncated·by·diffoscope;·len:·499,·SHA:·cfeeba14e16abb78173b5dd455dd294772fb12b6317c2a8844940489b98e2814·...·]-2">]</span><span·class="p">,</span><span·class="w"> |
| 202 | ·</span><span·class="p"·data-group-id=" | 202 | ·</span><span·class="p"·data-group-id="8566981987-7">[</span><span·class="p"·data-group-id="8566981987-8">{</span><span·class="s">"1"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8566981987-9">[</span><span·class="p"·data-group-id="8566981987-10[·...·truncated·by·diffoscope;·len:·503,·SHA:·e6432b2e8ea1af5c3ae1e7338b16ad16648ac2f520b8e086ea09493e76854aa0·...·]-7">]</span><span·class="w"> |
| 203 | </span><span·class="p"·data-group-id=" | 203 | </span><span·class="p"·data-group-id="8566981987-1">}</span><span·class="p">.</span><span·class="w"> |
| 204 | </span><span·class="ss">ch_app</span><span·class="p">.</span><span·class="nc">appup</span><span·class="p">:</span><span·class="w"> | 204 | </span><span·class="ss">ch_app</span><span·class="p">.</span><span·class="nc">appup</span><span·class="p">:</span><span·class="w"> |
| 205 | </span><span·class="p"·data-group-id=" | 205 | </span><span·class="p"·data-group-id="8566981987-12">{</span><span·class="s">"2"</span><span·class="p">,</span><span·class="w"> |
| 206 | ·</span><span·class="p"·data-group-id=" | 206 | ·</span><span·class="p"·data-group-id="8566981987-13">[</span><span·class="p"·data-group-id="8566981987-14">{</span><span·class="s">"1"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8566981987-15">[</span><span·class="p"·data-group-id="8566981987[·...·truncated·by·diffoscope;·len:·326,·SHA:·bfc81b568a0e323907bbc748a83f34f619c0c6a43c9293afcc6827114864daad·...·]-13">]</span><span·class="p">,</span><span·class="w"> |
| 207 | ·</span><span·class="p"·data-group-id=" | 207 | ·</span><span·class="p"·data-group-id="8566981987-17">[</span><span·class="p"·data-group-id="8566981987-18">{</span><span·class="s">"1"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8566981987-19">[</span><span·class="p"·data-group-id="8566981987[·...·truncated·by·diffoscope;·len:·326,·SHA:·6f6ddbfc4d00e807b4080bf7fd48a62aefd5fa48781245b59658c6ce64457853·...·]-17">]</span><span·class="w"> |
| 208 | </span><span·class="p"·data-group-id=" | 208 | </span><span·class="p"·data-group-id="8566981987-12">}</span><span·class="p">.</span></code></pre><p>If·instead·<code·class="inline">m1</code>·and·<code·class="inline">ch3</code>·belong·to·the·same·application,·the·<code·class="inline">.appup</code>·file·can |
| 209 | look·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 209 | look·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="1812934237-1">{</span><span·class="s">"2"</span><span·class="p">,</span><span·class="w"> |
| 210 | ·</span><span·class="p"·data-group-id=" | 210 | ·</span><span·class="p"·data-group-id="1812934237-2">[</span><span·class="p"·data-group-id="1812934237-3">{</span><span·class="s">"1"</span><span·class="p">,</span><span·class="w"> |
| 211 | ···</span><span·class="p"·data-group-id=" | 211 | ···</span><span·class="p"·data-group-id="1812934237-4">[</span><span·class="p"·data-group-id="1812934237-5">{</span><span·class="nb">load_module</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">ch3</span><span·class="p"·data-group-id="1812934237-5">}</span><span·class="p">,</span><span·class="w"> |
| 212 | ····</span><span·class="p"·data-group-id=" | 212 | ····</span><span·class="p"·data-group-id="1812934237-6">{</span><span·class="nb">load_module</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">m1</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1812934237-7">[</span><span·class="ss">ch3</sp[·...·truncated·by·diffoscope;·len:·256,·SHA:·baa31befc18bd16f7549b4f3963010523c2cf80e5bc7e90999483a454c7da18a·...·]-2">]</span><span·class="p">,</span><span·class="w"> |
| 213 | ·</span><span·class="p"·data-group-id=" | 213 | ·</span><span·class="p"·data-group-id="1812934237-8">[</span><span·class="p"·data-group-id="1812934237-9">{</span><span·class="s">"1"</span><span·class="p">,</span><span·class="w"> |
| 214 | ···</span><span·class="p"·data-group-id=" | 214 | ···</span><span·class="p"·data-group-id="1812934237-10">[</span><span·class="p"·data-group-id="1812934237-11">{</span><span·class="nb">load_module</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">ch3</span><span·class="p"·data-group-id="1812934237-11">}</span><span·class="p">,</span><span·class="w"> |
| 215 | ····</span><span·class="p"·data-group-id=" | 215 | ····</span><span·class="p"·data-group-id="1812934237-12">{</span><span·class="nb">load_module</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">m1</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1812934237-13">[</span><span·class="ss">ch3</[·...·truncated·by·diffoscope;·len:·261,·SHA:·905284c481e44a9f73188eab74c81b22b58d0b60619d270b71d70c5ad5a2f154·...·]-8">]</span><span·class="w"> |
| 216 | </span><span·class="p"·data-group-id=" | 216 | </span><span·class="p"·data-group-id="1812934237-1">}</span><span·class="p">.</span></code></pre><p><code·class="inline">m1</code>·is·dependent·on·<code·class="inline">ch3</code>·also·when·downgrading.·<code·class="inline">systools</code>·knows·the |
| 217 | difference·between·up-·and·downgrading·and·generates·a·correct·<code·class="inline">relup</code>,·where | 217 | difference·between·up-·and·downgrading·and·generates·a·correct·<code·class="inline">relup</code>,·where |
| 218 | <code·class="inline">ch3</code>·is·loaded·before·<code·class="inline">m1</code>·when·upgrading,·but·<code·class="inline">m1</code>·is·loaded·before·<code·class="inline">ch3</code>·when | 218 | <code·class="inline">ch3</code>·is·loaded·before·<code·class="inline">m1</code>·when·upgrading,·but·<code·class="inline">m1</code>·is·loaded·before·<code·class="inline">ch3</code>·when |
| 219 | downgrading.</p><p><a·href=""·id="spec"></a></p><h2·id="changing-code-for-a-special-process"·class="section-heading"> | 219 | downgrading.</p><p><a·href=""·id="spec"></a></p><h2·id="changing-code-for-a-special-process"·class="section-heading"> |
| 220 | ··<a·href="#changing-code-for-a-special-process"·class="hover-link"> | 220 | ··<a·href="#changing-code-for-a-special-process"·class="hover-link"> |
| 221 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 221 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 222 | ··</a> | 222 | ··</a> |
| 223 | ··<span·class="text">Changing·Code·for·a·Special·Process</span> | 223 | ··<span·class="text">Changing·Code·for·a·Special·Process</span> |
| 224 | </h2> | 224 | </h2> |
| 225 | <p>In·this·case,·simple·code·replacement·is·not·sufficient.·When·a·new·version·of·a | 225 | <p>In·this·case,·simple·code·replacement·is·not·sufficient.·When·a·new·version·of·a |
| 226 | residence·module·for·a·special·process·is·loaded,·the·process·must·make·a·fully | 226 | residence·module·for·a·special·process·is·loaded,·the·process·must·make·a·fully |
| 227 | qualified·call·to·its·loop·function·to·switch·to·the·new·code.·Thus, | 227 | qualified·call·to·its·loop·function·to·switch·to·the·new·code.·Thus, |
| 228 | synchronized·code·replacement·must·be·used.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>The·name(s)·of·the·user-defined·residence·module(s)·must·be·listed·in·the | 228 | synchronized·code·replacement·must·be·used.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>The·name(s)·of·the·user-defined·residence·module(s)·must·be·listed·in·the |
| 229 | <code·class="inline">Modules</code>·part·of·the·child·specification·for·the·special·process.·Otherwise | 229 | <code·class="inline">Modules</code>·part·of·the·child·specification·for·the·special·process.·Otherwise |
| 230 | the·release·handler·cannot·find·the·process.</p></section><p><em>Example</em></p><p>Consider·the·example·<code·class="inline">ch4</code>·in·<a·href="spec_proc.html#ex">sys·and·proc_lib</a>. | 230 | the·release·handler·cannot·find·the·process.</p></section><p><em>Example</em></p><p>Consider·the·example·<code·class="inline">ch4</code>·in·<a·href="spec_proc.html#ex">sys·and·proc_lib</a>. |
| 231 | When·started·by·a·supervisor,·the·child·specification·can·look·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 231 | When·started·by·a·supervisor,·the·child·specification·can·look·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="4630928123-1">{</span><span·class="ss">ch4</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4630928123-2">{</span><span·class="ss">ch4</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">start_link</sp[·...·truncated·by·diffoscope;·len:·198,·SHA:·e97740f91f592c69a8243e1b92883f712db2cea1b4616ab20337d3e6410aa51c·...·]-2">}</span><span·class="p">,</span><span·class="w"> |
| 232 | ·</span><span·class="ss">permanent</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">brutal_kill</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">worker</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id=" | 232 | ·</span><span·class="ss">permanent</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">brutal_kill</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">worker</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4630928123-4">[</span><span·class="ss">ch4</span><span·class="p"·data-group-id="4630928123-4">]</span><span·class="p"·data-group-id="4630928123-1">}</span></code></pre><p>If·<code·class="inline">ch4</code>·is·part·of·the·application·<code·class="inline">sp_app</code>·and·a·new·version·of·the·module·is |
| 233 | to·be·loaded·when·upgrading·from·version·"1"·to·"2"·of·this·application, | 233 | to·be·loaded·when·upgrading·from·version·"1"·to·"2"·of·this·application, |
| 234 | <code·class="inline">sp_app.appup</code>·can·look·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 234 | <code·class="inline">sp_app.appup</code>·can·look·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="4158718158-1">{</span><span·class="s">"2"</span><span·class="p">,</span><span·class="w"> |
| 235 | ·</span><span·class="p"·data-group-id="7811947462-2">[</span><span·class="p"·data-group-id="7811947462-3">{</span><span·class="s">"1"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="7811947462-4">[</span><span·class="p"·data-group-id="7811947462-5">{</span><span·class="ss">update</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">ch4</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="7811947462-6">{</span><span·class="ss">advanced</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="7811947462-7">[</span><span·class="p"·data-group-id="7811947462-7">]</span><span·class="p"·data-group-id="7811947462-6">}</span><span·class="p"·data-group-id="7811947462-5">}</span><span·class="p"·data-group-id="7811947462-4">]</span><span·class="p"·data-group-id="7811947462-3">}</span><span·class="p"·data-group-id="7811947462-2">]</span><span·class="p">,</span><span·class="w"> | ||
| 236 | ·</span><span·class="p"·data-group-id=" | 235 | ·</span><span·class="p"·data-group-id="4158718158-2">[</span><span·class="p"·data-group-id="4158718158-3">{</span><span·class="s">"1"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4158718158-4">[</span><span·class="p"·data-group-id="4158718158-5"[·...·truncated·by·diffoscope;·len:·683,·SHA:·e27f1488feebcfa0a6af29c5f24d0ec62f79953f272bd9f9ee25f29562e9a827·...·]</span><span·class="w"> |
| 236 | ·</span><span·class="p"·data-group-id="4158718158-8">[</span><span·class="p"·data-group-id="4158718158-9">{</span><span·class="s">"1"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4158718158-10">[</span><span·class="p"·data-group-id="4158718158-11">{</span><span·class="ss">update</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">ch4</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4158718158-12">{</span><span·class="ss">advanced</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4158718158-13">[</span><span·class="p"·data-group-id="4158718158-13">]</span><span·class="p"·data-group-id="4158718158-12">}</span><span·class="p"·data-group-id="4158718158-11">}</span><span·class="p"·data-group-id="4158718158-10">]</span><span·class="p"·data-group-id="4158718158-9">}</span><span·class="p"·data-group-id="4158718158-8">]</span><span·class="w"> | ||
| 237 | </span><span·class="p"·data-group-id=" | 237 | </span><span·class="p"·data-group-id="4158718158-1">}</span><span·class="p">.</span></code></pre><p>The·<code·class="inline">update</code>·instruction·must·contain·the·tuple·<code·class="inline">{advanced,Extra}</code>.·The |
| 238 | instruction·makes·the·special·process·call·the·callback·function | 238 | instruction·makes·the·special·process·call·the·callback·function |
| 239 | <code·class="inline">system_code_change/4</code>,·a·function·the·user·must·implement.·The·term·<code·class="inline">Extra</code>,·in | 239 | <code·class="inline">system_code_change/4</code>,·a·function·the·user·must·implement.·The·term·<code·class="inline">Extra</code>,·in |
| 240 | this·case·<code·class="inline">[]</code>,·is·passed·as·is·to·<code·class="inline">system_code_change/4</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 240 | this·case·<code·class="inline">[]</code>,·is·passed·as·is·to·<code·class="inline">system_code_change/4</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="9747002450-1">(</span><span·class="ss">ch4</span><span·class="p"·data-group-id="9747002450-1">)</span><span·class="p">.</span><span·class="w"> |
| 241 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> | 241 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> |
| 242 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 242 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="9747002450-2">(</span><span·class="p"·data-group-id="9747002450-3">[</span><span·class="ss">system_code_change</span><span·class="p">/</span><span·class="mi">4</span><span·class="p"·data-group-id="9747002450-3">]</span><span·class="p"·data-group-id="974700[·...·truncated·by·diffoscope;·len:·4,·SHA:·b0b03d744a85f4459c71437fe196dd925a299a06ae7a425615c903c97c36b8fb·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 243 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> | 243 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> |
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| 144 | fast·as·possible,·what·can·we·do?·One·way·could·be·to·generate·more | 144 | fast·as·possible,·what·can·we·do?·One·way·could·be·to·generate·more |
| 145 | than·two·bytes·at·the·time.</p><pre><code·class="text">%·erlperf·'rand:bytes(100).'·'crypto:strong_rand_bytes(100).' | 145 | than·two·bytes·at·the·time.</p><pre><code·class="text">%·erlperf·'rand:bytes(100).'·'crypto:strong_rand_bytes(100).' |
| 146 | Code···································||········QPS·······Time···Rel | 146 | Code···································||········QPS·······Time···Rel |
| 147 | rand:bytes(100).························1····2124·Ki·····470·ns··100% | 147 | rand:bytes(100).························1····2124·Ki·····470·ns··100% |
| 148 | crypto:strong_rand_bytes(100).··········1····1915·Ki·····522·ns···90%</code></pre><p><a·href="../../lib/stdlib-7.0/doc/html/rand.html#bytes/1"><code·class="inline">rand:bytes/1</code></a>·is·still·faster·when·we·generate·100·bytes·at·the·time, | 148 | crypto:strong_rand_bytes(100).··········1····1915·Ki·····522·ns···90%</code></pre><p><a·href="../../lib/stdlib-7.0/doc/html/rand.html#bytes/1"><code·class="inline">rand:bytes/1</code></a>·is·still·faster·when·we·generate·100·bytes·at·the·time, |
| 149 | but·the·relative·difference·is·smaller.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%·erlperf·'rand:bytes(1000).'·'crypto:strong_rand_bytes(1000).'</span><span·class="w"> | 149 | but·the·relative·difference·is·smaller.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%·erlperf·'rand:bytes(1000).'·'crypto:strong_rand_bytes(1000).'</span><span·class="w"> |
| 150 | </span><span·class="n">Code</span><span·class="w">····································</span><span·class="p">||</span><span·class="w">········</span><span·class="n">QPS</span><span·class="w">·······</span><span·class="n">Time</span><span·class="w">···</span><span·class="n">Rel</span><span·class="w"> | 150 | </span><span·class="n">Code</span><span·class="w">····································</span><span·class="p">||</span><span·class="w">········</span><span·class="n">QPS</span><span·class="w">·······</span><span·class="n">Time</span><span·class="w">···</span><span·class="n">Rel</span><span·class="w"> |
| 151 | </span><span·class="nc">crypto</span><span·class="p">:</span><span·class="nf">strong_rand_bytes</span><span·class="p"·data-group-id=" | 151 | </span><span·class="nc">crypto</span><span·class="p">:</span><span·class="nf">strong_rand_bytes</span><span·class="p"·data-group-id="1556162138-1">(</span><span·class="mi">1000</span><span·class="p"·data-group-id="1556162138-1">)</span><span·class="p">.</span><span·class="w">··········</span><span·class="mi">1</span><span·class="w">····</span><span·class="mi">1518</span><span·class="w">·</span><span·class="n">Ki</span><span·class="w">·····</span><span·class="mi">658</span><span·class="w">·</span><span·class="ss">ns</span><span·class="w">··</span><span·class="mi">100</span><span·class="c1">%</span><span·class="w"> |
| 152 | </span><span·class="nc">rand</span><span·class="p">:</span><span·class="nf">bytes</span><span·class="p"·data-group-id=" | 152 | </span><span·class="nc">rand</span><span·class="p">:</span><span·class="nf">bytes</span><span·class="p"·data-group-id="1556162138-2">(</span><span·class="mi">1000</span><span·class="p"·data-group-id="1556162138-2">)</span><span·class="p">.</span><span·class="w">························</span><span·class="mi">1</span><span·class="w">·····</span><span·class="mi">284</span><span·class="w">·</span><span·class="n">Ki</span><span·class="w">····</span><span·class="mi">3521</span><span·class="w">·</span><span·class="ss">ns</span><span·class="w">···</span><span·class="mi">19</span><span·class="c1">%</span></code></pre><p>When·we·generate·1000·bytes·at·the·time,·<a·href="../../lib/crypto-5.6/doc/html/crypto.html#strong_rand_bytes/1"><code·class="inline">crypto:strong_rand_bytes/1</code></a>·is |
| 153 | now·the·fastest.</p><h2·id="benchmarking-using-erlang-otp-functionality"·class="section-heading"> | 153 | now·the·fastest.</p><h2·id="benchmarking-using-erlang-otp-functionality"·class="section-heading"> |
| 154 | ··<a·href="#benchmarking-using-erlang-otp-functionality"·class="hover-link"> | 154 | ··<a·href="#benchmarking-using-erlang-otp-functionality"·class="hover-link"> |
| 155 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 155 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 156 | ··</a> | 156 | ··</a> |
| 157 | ··<span·class="text">Benchmarking·using·Erlang/OTP·functionality</span> | 157 | ··<span·class="text">Benchmarking·using·Erlang/OTP·functionality</span> |
| 158 | </h2> | 158 | </h2> |
| 159 | <p>Benchmarks·can·measure·wall-clock·time·or·CPU·time.</p><ul><li><p><a·href="../../lib/stdlib-7.0/doc/html/timer.html#tc/3"><code·class="inline">timer:tc/3</code></a>·measures·wall-clock·time.·The·advantage·with·wall-clock·time·is | 159 | <p>Benchmarks·can·measure·wall-clock·time·or·CPU·time.</p><ul><li><p><a·href="../../lib/stdlib-7.0/doc/html/timer.html#tc/3"><code·class="inline">timer:tc/3</code></a>·measures·wall-clock·time.·The·advantage·with·wall-clock·time·is |
| Offset 219, 15 lines modified | Offset 219, 15 lines modified | ||
| 219 | ······<p·class="built-using"> | 219 | ······<p·class="built-using"> |
| 220 | ········Built·using | 220 | ········Built·using |
| 221 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 221 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 222 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 222 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 223 | ······</p> | 223 | ······</p> |
| 224 | <p>Copyright·©·1996-202 | 224 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 225 | ····</footer> | 225 | ····</footer> |
| 226 | ··</div> | 226 | ··</div> |
| 227 | </main> | 227 | </main> |
| 228 | </div> | 228 | </div> |
| 229 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 229 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 230 | ··<script> | 230 | ··<script> |
| 231 | ··let·initialized·=·false; | 231 | ··let·initialized·=·false; |
| Offset 114, 43 lines modified | Offset 114, 43 lines modified | ||
| 114 | ····<span>Constructing·and·Matching·Binaries</span> | 114 | ····<span>Constructing·and·Matching·Binaries</span> |
| 115 | ··</h1> | 115 | ··</h1> |
| 116 | <p>This·section·gives·a·few·examples·on·how·to·handle·binaries·in·an·efficient·way. | 116 | <p>This·section·gives·a·few·examples·on·how·to·handle·binaries·in·an·efficient·way. |
| 117 | The·sections·that·follow·take·an·in-depth·look·at·how·binaries·are·implemented | 117 | The·sections·that·follow·take·an·in-depth·look·at·how·binaries·are·implemented |
| 118 | and·how·to·best·take·advantages·of·the·optimizations·done·by·the·compiler·and | 118 | and·how·to·best·take·advantages·of·the·optimizations·done·by·the·compiler·and |
| 119 | runtime·system.</p><p>Binaries·can·be·efficiently·<em>built</em>·in·the·following·way:</p><p><strong>DO</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">my_list_to_binary</span><span·class="p"·data-group-id=" | 119 | runtime·system.</p><p>Binaries·can·be·efficiently·<em>built</em>·in·the·following·way:</p><p><strong>DO</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">my_list_to_binary</span><span·class="p"·data-group-id="1903083562-1">(</span><span·class="n">List</span><span·class="p"·data-group-id="1903083562-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 120 | ····</span><span·class="nf">my_list_to_binary</span><span·class="p"·data-group-id=" | 120 | ····</span><span·class="nf">my_list_to_binary</span><span·class="p"·data-group-id="1903083562-2">(</span><span·class="n">List</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1903083562-3"><<</span><span·class="p"·data-group-id="1903083562-3">>></span><span·class="p"·data-group-id="19030835[·...·truncated·by·diffoscope;·len:·2,·SHA:·81b8a03f97e8787c53fe1a86bda042b6f0de9b0ec9c09357e107c99ba4d6948a·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 121 | </span><span·class="nf">my_list_to_binary</span><span·class="p"·data-group-id=" | 121 | </span><span·class="nf">my_list_to_binary</span><span·class="p"·data-group-id="1903083562-4">(</span><span·class="p"·data-group-id="1903083562-5">[</span><span·class="n">H</span><span·class="p">|</span><span·class="n">T</span><span·class="p"·data-group-id="1903083562-5">]</span><span·class="p">,</span><span·class="w">·</span><span·cl[·...·truncated·by·diffoscope;·len:·59,·SHA:·985eca3a069d66e08e85c0bad9913f0ef121dc419a3dad6cdbc37ded5d7d44b9·...·]-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 122 | ····</span><span·class="nf">my_list_to_binary</span><span·class="p"·data-group-id=" | 122 | ····</span><span·class="nf">my_list_to_binary</span><span·class="p"·data-group-id="1903083562-6">(</span><span·class="n">T</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1903083562-7"><<</span><span·class="n">Acc</span><span·class="o">/</span><span·class="ss">binary</span><span·class="p">,</spa[·...·truncated·by·diffoscope;·len:·127,·SHA:·422ab9eca05a8115f37a1fca304a3ca584e9da2fc72a6123c81df4eae438d334·...·]-6">)</span><span·class="p">;</span><span·class="w"> |
| 123 | </span><span·class="nf">my_list_to_binary</span><span·class="p"·data-group-id=" | 123 | </span><span·class="nf">my_list_to_binary</span><span·class="p"·data-group-id="1903083562-8">(</span><span·class="p"·data-group-id="1903083562-9">[</span><span·class="p"·data-group-id="1903083562-9">]</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Acc</span><span·class="p"·data-group-id="1903083562-8">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 124 | ····</span><span·class="n">Acc</span><span·class="p">.</span></code></pre><p>Appending·data·to·a·binary·as·in·the·example·is·efficient·because·it·is | 124 | ····</span><span·class="n">Acc</span><span·class="p">.</span></code></pre><p>Appending·data·to·a·binary·as·in·the·example·is·efficient·because·it·is |
| 125 | specially·optimized·by·the·runtime·system·to·avoid·copying·the·<code·class="inline">Acc</code>·binary | 125 | specially·optimized·by·the·runtime·system·to·avoid·copying·the·<code·class="inline">Acc</code>·binary |
| 126 | every·time.</p><p>Prepending·data·to·a·binary·in·a·loop·is·not·efficient:</p><p><strong>DO·NOT</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">rev_list_to_binary</span><span·class="p"·data-group-id=" | 126 | every·time.</p><p>Prepending·data·to·a·binary·in·a·loop·is·not·efficient:</p><p><strong>DO·NOT</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">rev_list_to_binary</span><span·class="p"·data-group-id="6057711049-1">(</span><span·class="n">List</span><span·class="p"·data-group-id="6057711049-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 127 | ····</span><span·class="nf">rev_list_to_binary</span><span·class="p"·data-group-id=" | 127 | ····</span><span·class="nf">rev_list_to_binary</span><span·class="p"·data-group-id="6057711049-2">(</span><span·class="n">List</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6057711049-3"><<</span><span·class="p"·data-group-id="6057711049-3">>></span><span·class="p"·data-group-id="60577110[·...·truncated·by·diffoscope;·len:·2,·SHA:·0e17daca5f3e175f448bacace3bc0da47d0655a74c8dd0dc497a3afbdad95f1f·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 128 | </span><span·class="nf">rev_list_to_binary</span><span·class="p"·data-group-id=" | 128 | </span><span·class="nf">rev_list_to_binary</span><span·class="p"·data-group-id="6057711049-4">(</span><span·class="p"·data-group-id="6057711049-5">[</span><span·class="n">H</span><span·class="p">|</span><span·class="n">T</span><span·class="p"·data-group-id="6057711049-5">]</span><span·class="p">,</span><span·class="w">·</span><span·cl[·...·truncated·by·diffoscope;·len:·59,·SHA:·d99b1019d77824d723ae0013b9ccddc35d35b5fbbf182dea8b4246b5fb893b03·...·]-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 129 | ····</span><span·class="nf">rev_list_to_binary</span><span·class="p"·data-group-id=" | 129 | ····</span><span·class="nf">rev_list_to_binary</span><span·class="p"·data-group-id="6057711049-6">(</span><span·class="n">T</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6057711049-7"><<</span><span·class="n">H</span><span·class="p">,</span><span·class="n">Acc</span><span·class="o">/</span><spa[·...·truncated·by·diffoscope;·len:·127,·SHA:·a81925cf6540f8bd5386d566e19c4620209e014659e17050da2e14f53fb51d65·...·]-6">)</span><span·class="p">;</span><span·class="w"> |
| 130 | </span><span·class="nf">rev_list_to_binary</span><span·class="p"·data-group-id=" | 130 | </span><span·class="nf">rev_list_to_binary</span><span·class="p"·data-group-id="6057711049-8">(</span><span·class="p"·data-group-id="6057711049-9">[</span><span·class="p"·data-group-id="6057711049-9">]</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Acc</span><span·class="p"·data-group-id="6057711049-8">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 131 | ····</span><span·class="n">Acc</span><span·class="p">.</span></code></pre><p>This·is·not·efficient·for·long·lists·because·the·<code·class="inline">Acc</code>·binary·is·copied·every | 131 | ····</span><span·class="n">Acc</span><span·class="p">.</span></code></pre><p>This·is·not·efficient·for·long·lists·because·the·<code·class="inline">Acc</code>·binary·is·copied·every |
| 132 | time.·One·way·to·make·the·function·more·efficient·is·like·this:</p><p><strong>DO·NOT</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">rev_list_to_binary</span><span·class="p"·data-group-id=" | 132 | time.·One·way·to·make·the·function·more·efficient·is·like·this:</p><p><strong>DO·NOT</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">rev_list_to_binary</span><span·class="p"·data-group-id="9361790369-1">(</span><span·class="n">List</span><span·class="p"·data-group-id="9361790369-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 133 | ····</span><span·class="nf">rev_list_to_binary</span><span·class="p"·data-group-id=" | 133 | ····</span><span·class="nf">rev_list_to_binary</span><span·class="p"·data-group-id="9361790369-2">(</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">reverse</span><span·class="p"·data-group-id="9361790369-3">(</span><span·class="n">List</span><span·class="p"·data-group-id="9361790369-3">)</span><span·class="p">,[·...·truncated·by·diffoscope;·len:·192,·SHA:·cd0566bb95e30943267b75538bc2883b991c078d5a5dfef425cd517772d36b98·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 134 | </span><span·class="nf">rev_list_to_binary</span><span·class="p"·data-group-id=" | 134 | </span><span·class="nf">rev_list_to_binary</span><span·class="p"·data-group-id="9361790369-5">(</span><span·class="p"·data-group-id="9361790369-6">[</span><span·class="n">H</span><span·class="p">|</span><span·class="n">T</span><span·class="p"·data-group-id="9361790369-6">]</span><span·class="p">,</span><span·class="w">·</span><span·cl[·...·truncated·by·diffoscope;·len:·59,·SHA:·d6715b371d4c623aece9afc3d99fe039ef829aac77a88ffb1a8b971453498a9f·...·]-5">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 135 | ····</span><span·class="nf">rev_list_to_binary</span><span·class="p"·data-group-id=" | 135 | ····</span><span·class="nf">rev_list_to_binary</span><span·class="p"·data-group-id="9361790369-7">(</span><span·class="n">T</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9361790369-8"><<</span><span·class="n">Acc</span><span·class="o">/</span><span·class="ss">binary</span><span·class="p">,</spa[·...·truncated·by·diffoscope;·len:·127,·SHA:·93ff697ab12b8b00463cf0a3359b99d3333bc7d2fce40c201b6b9b15e6f95509·...·]-7">)</span><span·class="p">;</span><span·class="w"> |
| 136 | </span><span·class="nf">rev_list_to_binary</span><span·class="p"·data-group-id=" | 136 | </span><span·class="nf">rev_list_to_binary</span><span·class="p"·data-group-id="9361790369-9">(</span><span·class="p"·data-group-id="9361790369-10">[</span><span·class="p"·data-group-id="9361790369-10">]</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Acc</span><span·class="p"·data-group-id="9361790369-9">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 137 | ····</span><span·class="n">Acc</span><span·class="p">.</span></code></pre><p>Another·way·to·avoid·copying·the·binary·each·time·is·like·this:</p><p><strong>DO</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">rev_list_to_binary</span><span·class="p"·data-group-id="0 | 137 | ····</span><span·class="n">Acc</span><span·class="p">.</span></code></pre><p>Another·way·to·avoid·copying·the·binary·each·time·is·like·this:</p><p><strong>DO</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">rev_list_to_binary</span><span·class="p"·data-group-id="9206847399-1">(</span><span·class="p"·data-group-id="9206847399-2">[</span><span·class="n">H</span><span·class="p">|</span><span·class="n">T</span><span·class="p"·data-group-id="9206847399-2">]</span><span·class="p"·data-group-id="9206847399-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 138 | ····</span><span·class="n">RevTail</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">rev_list_to_binary</span><span·class="p"·data-group-id="0 | 138 | ····</span><span·class="n">RevTail</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">rev_list_to_binary</span><span·class="p"·data-group-id="9206847399-3">(</span><span·class="n">T</span><span·class="p"·data-group-id="9206847399-3">)</span><span·class="p">,</span><span·class="w"> |
| 139 | ····</span><span·class="p"·data-group-id="0 | 139 | ····</span><span·class="p"·data-group-id="9206847399-4"><<</span><span·class="n">RevTail</span><span·class="o">/</span><span·class="ss">binary</span><span·class="p">,</span><span·class="n">H</span><span·class="p"·data-group-id="9206847399-4">>></span><span·class="p">;</span><span·class="w"> |
| 140 | </span><span·class="nf">rev_list_to_binary</span><span·class="p"·data-group-id="0 | 140 | </span><span·class="nf">rev_list_to_binary</span><span·class="p"·data-group-id="9206847399-5">(</span><span·class="p"·data-group-id="9206847399-6">[</span><span·class="p"·data-group-id="9206847399-6">]</span><span·class="p"·data-group-id="9206847399-5">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 141 | ····</span><span·class="p"·data-group-id="0 | 141 | ····</span><span·class="p"·data-group-id="9206847399-7"><<</span><span·class="p"·data-group-id="9206847399-7">>></span><span·class="p">.</span></code></pre><p>Note·that·in·each·of·the·<strong>DO</strong>·examples,·the·binary·to·be·appended·to·is·always |
| 142 | given·as·the·first·segment.</p><p>Binaries·can·be·efficiently·<em>matched</em>·in·the·following·way:</p><p><strong>DO</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">my_binary_to_list</span><span·class="p"·data-group-id=" | 142 | given·as·the·first·segment.</p><p>Binaries·can·be·efficiently·<em>matched</em>·in·the·following·way:</p><p><strong>DO</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">my_binary_to_list</span><span·class="p"·data-group-id="6172582076-1">(</span><span·class="p"·data-group-id="6172582076-2"><<</span><span·class="n">H</span><span·class="p">,</span><span·class="n">T</span><span·class="o">/</span><span·class="ss">binary</span><span·class="p"·data-group-id="6172582076-2">>[·...·truncated·by·diffoscope;·len:·52,·SHA:·fceb4459bb851d2f0b36bfadf261696b94cc3419c964acddcd2a648f20ecc42c·...·]6-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 143 | ····</span><span·class="p"·data-group-id=" | 143 | ····</span><span·class="p"·data-group-id="6172582076-3">[</span><span·class="n">H</span><span·class="p">|</span><span·class="nf">my_binary_to_list</span><span·class="p"·data-group-id="6172582076-4">(</span><span·class="n">T</span><span·class="p"·data-group-id="6172582076-4">)</span><span·class="p"[·...·truncated·by·diffoscope;·len:·25,·SHA:·ef91c21aed21b47af48d850725f27d21c7ebc97ab9bf6bd884267d4215fbb67e·...·]6-3">]</span><span·class="p">;</span><span·class="w"> |
| 144 | </span><span·class="nf">my_binary_to_list</span><span·class="p"·data-group-id=" | 144 | </span><span·class="nf">my_binary_to_list</span><span·class="p"·data-group-id="6172582076-5">(</span><span·class="p"·data-group-id="6172582076-6"><<</span><span·class="p"·data-group-id="6172582076-6">>></span><span·class="p"·data-group-id="6172582076-5">)</span><span·class="w">·</span><span·class="p">-></span><span·cla[·...·truncated·by·diffoscope;·len:·108,·SHA:·6d04852501d8a8070f90ae78ef363422ec69e079f06e4906ff81960d1b329566·...·]6-7">]</span><span·class="p">.</span></code></pre><h2·id="how-binaries-are-implemented"·class="section-heading"> |
| 145 | ··<a·href="#how-binaries-are-implemented"·class="hover-link"> | 145 | ··<a·href="#how-binaries-are-implemented"·class="hover-link"> |
| 146 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 146 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 147 | ··</a> | 147 | ··</a> |
| 148 | ··<span·class="text">How·Binaries·are·Implemented</span> | 148 | ··<span·class="text">How·Binaries·are·Implemented</span> |
| 149 | </h2> | 149 | </h2> |
| 150 | <p>Internally,·binaries·and·bitstrings·are·implemented·in·the·same·way.·In·this | 150 | <p>Internally,·binaries·and·bitstrings·are·implemented·in·the·same·way.·In·this |
| 151 | section,·they·are·called·<em>binaries</em>·because·that·is·what·they·are·called·in·the | 151 | section,·they·are·called·<em>binaries</em>·because·that·is·what·they·are·called·in·the |
| Offset 205, 29 lines modified | Offset 205, 29 lines modified | ||
| 205 | called·referential·transparency)·of·Erlang·would·break.</p><h2·id="constructing-binaries"·class="section-heading"> | 205 | called·referential·transparency)·of·Erlang·would·break.</p><h2·id="constructing-binaries"·class="section-heading"> |
| 206 | ··<a·href="#constructing-binaries"·class="hover-link"> | 206 | ··<a·href="#constructing-binaries"·class="hover-link"> |
| 207 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 207 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 208 | ··</a> | 208 | ··</a> |
| 209 | ··<span·class="text">Constructing·Binaries</span> | 209 | ··<span·class="text">Constructing·Binaries</span> |
| 210 | </h2> | 210 | </h2> |
| 211 | <p>Appending·to·a·binary·or·bitstring·in·the·following·way·is·specially·optimized | 211 | <p>Appending·to·a·binary·or·bitstring·in·the·following·way·is·specially·optimized |
| 212 | to·avoid·copying·the·binary:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 212 | to·avoid·copying·the·binary:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="2730491885-1"><<</span><span·class="n">Binary</span><span·class="o">/</span><span·class="ss">binary</span><span·class="p">,</span><span·class="w">·</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p"·data-gro[·...·truncated·by·diffoscope;·len:·17,·SHA:·03ad6418e5b80f5c39f801215a08c5ad05338117b3bb2fa8cbb6fb967a649d76·...·]-1">>></span><span·class="w"> |
| 213 | </span><span·class="c1">%%·-·OR·-</span><span·class="w"> | 213 | </span><span·class="c1">%%·-·OR·-</span><span·class="w"> |
| 214 | </span><span·class="p"·data-group-id=" | 214 | </span><span·class="p"·data-group-id="2730491885-2"><<</span><span·class="n">Binary</span><span·class="o">/</span><span·class="ss">bitstring</span><span·class="p">,</span><span·class="w">·</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p"·data-[·...·truncated·by·diffoscope;·len:·20,·SHA:·a7b455853716513ffdc2f69cda24978a96a078c70bdf2d9cfb4a30b97d7e7e98·...·]-2">>></span></code></pre><p>This·optimization·is·applied·by·the·runtime·system·in·a·way·that·makes·it |
| 215 | effective·in·most·circumstances·(for·exceptions,·see | 215 | effective·in·most·circumstances·(for·exceptions,·see |
| 216 | <a·href="binaryhandling.html#forced_copying">Circumstances·That·Force·Copying</a>).·The | 216 | <a·href="binaryhandling.html#forced_copying">Circumstances·That·Force·Copying</a>).·The |
| 217 | optimization·in·its·basic·form·does·not·need·any·help·from·the·compiler. | 217 | optimization·in·its·basic·form·does·not·need·any·help·from·the·compiler. |
| 218 | However,·the·compiler·add·hints·to·the·runtime·system·when·it·is·safe·to·apply | 218 | However,·the·compiler·add·hints·to·the·runtime·system·when·it·is·safe·to·apply |
| 219 | the·optimization·in·a·more·efficient·way.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Change</h4><p>The·compiler·support·for·making·the·optimization·more·efficient·was·added·in | 219 | the·optimization·in·a·more·efficient·way.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Change</h4><p>The·compiler·support·for·making·the·optimization·more·efficient·was·added·in |
| 220 | Erlang/OTP·26.</p></section><p>To·explain·how·the·basic·optimization·works,·let·us·examine·the·following·code | 220 | Erlang/OTP·26.</p></section><p>To·explain·how·the·basic·optimization·works,·let·us·examine·the·following·code |
| 221 | line·by·line:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Bin0</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 221 | line·by·line:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Bin0</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="3094787464-1"><<</span><span·class="mi">0</span><span·class="p"·data-group-id="3094787464-1">>></span><span·class="p">,</span><span·class="w">····················</span><span·class="c1">%%·1</span><span·class="w"> |
| 222 | </span><span·class="n">Bin1</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 222 | </span><span·class="n">Bin1</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="3094787464-2"><<</span><span·class="n">Bin0</span><span·class="o">/</span><span·class="ss">binary</span><span·class="p">,</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">2</span><span·class="p">,</span><span·class="mi">3</span[·...·truncated·by·diffoscope;·len:·42,·SHA:·0bf0a830c8fb857fe71194225ee421f1a582afc66742d177c91b0d8039edb722·...·]-2">>></span><span·class="p">,</span><span·class="w">····</span><span·class="c1">%%·2</span><span·class="w"> |
| 223 | </span><span·class="n">Bin2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 223 | </span><span·class="n">Bin2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="3094787464-3"><<</span><span·class="n">Bin1</span><span·class="o">/</span><span·class="ss">binary</span><span·class="p">,</span><span·class="mi">4</span><span·class="p">,</span><span·class="mi">5</span><span·class="p">,</span><span·class="mi">6</span[·...·truncated·by·diffoscope;·len:·42,·SHA:·0bf0a830c8fb857fe71194225ee421f1a582afc66742d177c91b0d8039edb722·...·]-3">>></span><span·class="p">,</span><span·class="w">····</span><span·class="c1">%%·3</span><span·class="w"> |
| 224 | </span><span·class="n">Bin3</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 224 | </span><span·class="n">Bin3</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="3094787464-4"><<</span><span·class="n">Bin2</span><span·class="o">/</span><span·class="ss">binary</span><span·class="p">,</span><span·class="mi">7</span><span·class="p">,</span><span·class="mi">8</span><span·class="p">,</span><span·class="mi">9</span[·...·truncated·by·diffoscope;·len:·42,·SHA:·0bf0a830c8fb857fe71194225ee421f1a582afc66742d177c91b0d8039edb722·...·]-4">>></span><span·class="p">,</span><span·class="w">····</span><span·class="c1">%%·4</span><span·class="w"> |
| 225 | </span><span·class="n">Bin4</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 225 | </span><span·class="n">Bin4</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="3094787464-5"><<</span><span·class="n">Bin1</span><span·class="o">/</span><span·class="ss">binary</span><span·class="p">,</span><span·class="mi">17</span><span·class="p"·data-group-id="3094787464-5">>></span><span·class="p">,</span><span·class="w">·······</span><span·class="c1">%%·5·!!!</span><span·class="w"> |
| 226 | </span><span·class="p"·data-group-id=" | 226 | </span><span·class="p"·data-group-id="3094787464-6">{</span><span·class="n">Bin4</span><span·class="p">,</span><span·class="n">Bin3</span><span·class="p"·data-group-id="3094787464-6">}</span><span·class="w">······················</span><span·class="c1">%%·6</span></code></pre><ul><li><p>Line·1·(marked·with·the·<code·class="inline">%%·1</code>·comment),·assigns·a |
| 227 | <a·href="binaryhandling.html#heap_binary">heap·binary</a>·to·the·<code·class="inline">Bin0</code>·variable.</p></li><li><p>Line·2·is·an·append·operation.·As·<code·class="inline">Bin0</code>·has·not·been·involved·in·an·append | 227 | <a·href="binaryhandling.html#heap_binary">heap·binary</a>·to·the·<code·class="inline">Bin0</code>·variable.</p></li><li><p>Line·2·is·an·append·operation.·As·<code·class="inline">Bin0</code>·has·not·been·involved·in·an·append |
| 228 | operation,·a·new·<a·href="binaryhandling.html#refc_binary">refc·binary</a>·is·created·and | 228 | operation,·a·new·<a·href="binaryhandling.html#refc_binary">refc·binary</a>·is·created·and |
| 229 | the·contents·of·<code·class="inline">Bin0</code>·is·copied·into·it.·The·<em>ProcBin</em>·part·of·the·refc | 229 | the·contents·of·<code·class="inline">Bin0</code>·is·copied·into·it.·The·<em>ProcBin</em>·part·of·the·refc |
| 230 | binary·has·its·size·set·to·the·size·of·the·data·stored·in·the·binary,·while | 230 | binary·has·its·size·set·to·the·size·of·the·data·stored·in·the·binary,·while |
| 231 | the·binary·object·has·extra·space·allocated.·The·size·of·the·binary·object·is | 231 | the·binary·object·has·extra·space·allocated.·The·size·of·the·binary·object·is |
| 232 | either·twice·the·size·of·<code·class="inline">Bin1</code>·or·256,·whichever·is·larger.·In·this·case·it | 232 | either·twice·the·size·of·<code·class="inline">Bin1</code>·or·256,·whichever·is·larger.·In·this·case·it |
| 233 | is·256.</p></li><li><p>Line·3·is·more·interesting.·<code·class="inline">Bin1</code>·<em>has</em>·been·used·in·an·append·operation,·and | 233 | is·256.</p></li><li><p>Line·3·is·more·interesting.·<code·class="inline">Bin1</code>·<em>has</em>·been·used·in·an·append·operation,·and |
| Offset 253, 23 lines modified | Offset 253, 23 lines modified | ||
| 253 | handle·an·append·operation·to·a·heap·binary·by·copying·it·to·a·refc·binary·(line | 253 | handle·an·append·operation·to·a·heap·binary·by·copying·it·to·a·refc·binary·(line |
| 254 | 2),·and·also·handle·an·append·operation·to·a·previous·version·of·the·binary·by | 254 | 2),·and·also·handle·an·append·operation·to·a·previous·version·of·the·binary·by |
| 255 | copying·it·(line·5).·The·support·for·doing·that·does·not·come·for·free.·For | 255 | copying·it·(line·5).·The·support·for·doing·that·does·not·come·for·free.·For |
| 256 | example,·to·make·it·possible·to·know·when·it·is·necessary·to·copy·the·binary, | 256 | example,·to·make·it·possible·to·know·when·it·is·necessary·to·copy·the·binary, |
| 257 | for·every·append·operation,·the·runtime·system·must·create·a·sub·binary.</p><p>When·the·compiler·can·determine·that·none·of·those·situations·need·to·be·handled | 257 | for·every·append·operation,·the·runtime·system·must·create·a·sub·binary.</p><p>When·the·compiler·can·determine·that·none·of·those·situations·need·to·be·handled |
| 258 | and·that·the·append·operation·cannot·possibly·fail,·the·compiler·generates·code | 258 | and·that·the·append·operation·cannot·possibly·fail,·the·compiler·generates·code |
| 259 | that·causes·the·runtime·system·to·apply·a·more·efficient·variant·of·the | 259 | that·causes·the·runtime·system·to·apply·a·more·efficient·variant·of·the |
| 260 | optimization.</p><p><strong>Example:</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 260 | optimization.</p><p><strong>Example:</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="9647174355-1">(</span><span·class="ss">repack</span><span·class="p"·data-group-id="9647174355-1">)</span><span·class="p">.</span><span·class="w"> |
| 261 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 261 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="9647174355-2">(</span><span·class="p"·data-group-id="9647174355-3">[</span><span·class="ss">repack</span><span·class="p">/</span><span·class="mi">1</span><span·class="p"·data-group-id="9647174355-3">]</span><span·class="p"·data-group-id="9647174355-2">)</span><span·class="p">.</span><span·class="w"> |
| 262 | </span><span·class="nf">repack</span><span·class="p"·data-group-id=" | 262 | </span><span·class="nf">repack</span><span·class="p"·data-group-id="9647174355-4">(</span><span·class="n">Bin</span><span·class="p"·data-group-id="9647174355-4">)</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><span·class="nf">is_binary</span><span·class="p"·data-group-id="9647174355-5">(<[·...·truncated·by·diffoscope;·len:·73,·SHA:·9640d4853cecfd32e6fe86473011af15980a514aa249545a6d78045c008fdf75·...·]-5">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 263 | ····</span><span·class="nf">repack</span><span·class="p"·data-group-id=" | 263 | ····</span><span·class="nf">repack</span><span·class="p"·data-group-id="9647174355-6">(</span><span·class="n">Bin</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9647174355-7"><<</span><span·class="p"·data-group-id="9647174355-7">>></span><span·class="p"·data-group-id="964717435[·...·truncated·by·diffoscope;·len:·1,·SHA:·ef2d127de37b942baad06145e54b0c619a1f22327b2ebbcfbec78f5564afe39d·...·]-6">)</span><span·class="p">.</span><span·class="w"> |
| 264 | </span><span·class="nf">repack</span><span·class="p"·data-group-id=" | 264 | </span><span·class="nf">repack</span><span·class="p"·data-group-id="9647174355-8">(</span><span·class="p"·data-group-id="9647174355-9"><<</span><span·class="n">C</span><span·class="p">:</span><span·class="mi">8</span><span·class="p">,</span><span·class="n">T</span><span·class="o">/</span><span·class="ss">binary</span[·...·truncated·by·diffoscope;·len:·179,·SHA:·754ee46f69363a551c7df736e2676d4c4186a5e0f59c4fd47871bb9a556a7449·...·]-8">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 265 | ····</span><span·class="nf">repack</span><span·class="p"·data-group-id=" | 265 | ····</span><span·class="nf">repack</span><span·class="p"·data-group-id="9647174355-10">(</span><span·class="n">T</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9647174355-11"><<</span><span·class="n">Result</span><span·class="o">/</span><span·class="ss">binary</span><span·class="p">,[·...·truncated·by·diffoscope;·len:·183,·SHA:·0c49d2dd916d9c6005c9216059ea95a8b1d96c444ae336ae3ce3e548e42d7426·...·]-10">)</span><span·class="p">;</span><span·class="w"> |
| 266 | </span><span·class="nf">repack</span><span·class="p"·data-group-id=" | 266 | </span><span·class="nf">repack</span><span·class="p"·data-group-id="9647174355-12">(</span><span·class="p"·data-group-id="9647174355-13"><<</span><span·class="p"·data-group-id="9647174355-13">>></span><span·class="p">,</span><span·class="w">·</span><span·class="n">Result</span><span·class="p"·data-group-id="964[·...·truncated·by·diffoscope;·len:·7,·SHA:·816dfa0ac07cc05bf9bd98485f29677e09091cb7851c1965acc932f94153c7f2·...·]-12">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 267 | ····</span><span·class="n">Result</span><span·class="p">.</span></code></pre><p>The·<code·class="inline">repack/2</code>·function·only·keeps·a·single·version·of·the·binary,·so·there·is | 267 | ····</span><span·class="n">Result</span><span·class="p">.</span></code></pre><p>The·<code·class="inline">repack/2</code>·function·only·keeps·a·single·version·of·the·binary,·so·there·is |
| 268 | never·any·need·to·copy·the·binary.·The·compiler·rewrites·the·creation·of·the | 268 | never·any·need·to·copy·the·binary.·The·compiler·rewrites·the·creation·of·the |
| 269 | empty·binary·in·<code·class="inline">repack/1</code>·to·instead·create·a·refc·binary·with·256·bytes | 269 | empty·binary·in·<code·class="inline">repack/1</code>·to·instead·create·a·refc·binary·with·256·bytes |
| 270 | already·reserved;·thus,·the·append·operation·in·<code·class="inline">repack/2</code>·never·needs·to·handle | 270 | already·reserved;·thus,·the·append·operation·in·<code·class="inline">repack/2</code>·never·needs·to·handle |
| 271 | a·binary·not·prepared·for·appending.</p><p><a·href=""·id="forced_copying"></a></p><h3·id="circumstances-that-force-copying"·class="section-heading"> | 271 | a·binary·not·prepared·for·appending.</p><p><a·href=""·id="forced_copying"></a></p><h3·id="circumstances-that-force-copying"·class="section-heading"> |
| 272 | ··<a·href="#circumstances-that-force-copying"·class="hover-link"> | 272 | ··<a·href="#circumstances-that-force-copying"·class="hover-link"> |
| 273 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 273 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 281, 72 lines modified | Offset 281, 72 lines modified | ||
| 281 | reason·is·that·the·binary·object·can·be·moved·(reallocated)·during·an·append | 281 | reason·is·that·the·binary·object·can·be·moved·(reallocated)·during·an·append |
| 282 | operation,·and·when·that·happens,·the·pointer·in·the·ProcBin·must·be·updated.·If | 282 | operation,·and·when·that·happens,·the·pointer·in·the·ProcBin·must·be·updated.·If |
| 283 | there·would·be·more·than·one·ProcBin·pointing·to·the·binary·object,·it·would·not | 283 | there·would·be·more·than·one·ProcBin·pointing·to·the·binary·object,·it·would·not |
| 284 | be·possible·to·find·and·update·all·of·them.</p><p>Therefore,·certain·operations·on·a·binary·mark·it·so·that·any·future·append | 284 | be·possible·to·find·and·update·all·of·them.</p><p>Therefore,·certain·operations·on·a·binary·mark·it·so·that·any·future·append |
| 285 | operation·will·be·forced·to·copy·the·binary.·In·most·cases,·the·binary·object | 285 | operation·will·be·forced·to·copy·the·binary.·In·most·cases,·the·binary·object |
| 286 | will·be·shrunk·at·the·same·time·to·reclaim·the·extra·space·allocated·for | 286 | will·be·shrunk·at·the·same·time·to·reclaim·the·extra·space·allocated·for |
| 287 | growing.</p><p>When·appending·to·a·binary·as·follows,·only·the·binary·returned·from·the·latest | 287 | growing.</p><p>When·appending·to·a·binary·as·follows,·only·the·binary·returned·from·the·latest |
| 288 | append·operation·will·support·further·cheap·append·operations:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Bin</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 288 | append·operation·will·support·further·cheap·append·operations:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Bin</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="9199625274-1"><<</span><span·class="n">Bin0</span><span·class="p">,</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p"·data-group-id="9199625274-1">>></span></code></pre><p>In·the·code·fragment·in·the·beginning·of·this·section,·appending·to·<code·class="inline">Bin</code>·will |
| 289 | be·cheap,·while·appending·to·<code·class="inline">Bin0</code>·will·force·the·creation·of·a·new·binary·and | 289 | be·cheap,·while·appending·to·<code·class="inline">Bin0</code>·will·force·the·creation·of·a·new·binary·and |
| 290 | copying·of·the·contents·of·<code·class="inline">Bin0</code>.</p><p>If·a·binary·is·sent·as·a·message·to·a·process·or·port,·the·binary·will·be·shrunk | 290 | copying·of·the·contents·of·<code·class="inline">Bin0</code>.</p><p>If·a·binary·is·sent·as·a·message·to·a·process·or·port,·the·binary·will·be·shrunk |
| 291 | and·any·further·append·operation·will·copy·the·binary·data·into·a·new·binary. | 291 | and·any·further·append·operation·will·copy·the·binary·data·into·a·new·binary. |
| 292 | For·example,·in·the·following·code·fragment·<code·class="inline">Bin1</code>·will·be·copied·in·the·third | 292 | For·example,·in·the·following·code·fragment·<code·class="inline">Bin1</code>·will·be·copied·in·the·third |
| 293 | line:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Bin1</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 293 | line:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Bin1</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="1073620090-1"><<</span><span·class="n">Bin0</span><span·class="p">,</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p"·data-group-id="1073620090-1">>></span><span·class="p">,</span><span·class="w"> |
| 294 | </span><span·class="n">PortOrPid</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="n">Bin1</span><span·class="p">,</span><span·class="w"> | 294 | </span><span·class="n">PortOrPid</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="n">Bin1</span><span·class="p">,</span><span·class="w"> |
| 295 | </span><span·class="n">Bin</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 295 | </span><span·class="n">Bin</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="1073620090-2"><<</span><span·class="n">Bin1</span><span·class="p">,</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p"·data-group-id="1073620090-2">>></span><span·class="w">··</span><span·class="c1">%%·Bin1·will·be·COPIED</span></code></pre><p>The·same·happens·if·you·insert·a·binary·into·an·Ets·table,·send·it·to·a·port |
| 296 | using·<a·href="../../erts-16.0/doc/html/erlang.html#port_command/2"><code·class="inline">erlang:port_command/2</code></a>,·or·pass·it·to | 296 | using·<a·href="../../erts-16.0/doc/html/erlang.html#port_command/2"><code·class="inline">erlang:port_command/2</code></a>,·or·pass·it·to |
| 297 | <a·href="../../erts-16.0/doc/html/erl_nif.html#enif_inspect_binary">enif_inspect_binary</a>·in·a·NIF.</p><p>Matching·a·binary·will·also·cause·it·to·shrink·and·the·next·append·operation | 297 | <a·href="../../erts-16.0/doc/html/erl_nif.html#enif_inspect_binary">enif_inspect_binary</a>·in·a·NIF.</p><p>Matching·a·binary·will·also·cause·it·to·shrink·and·the·next·append·operation |
| 298 | will·copy·the·binary·data:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Bin1</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 298 | will·copy·the·binary·data:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Bin1</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="7067818628-1"><<</span><span·class="n">Bin0</span><span·class="p">,</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p"·data-group-id="7067818628-1">>></span><span·class="p">,</span><span·class="w"> |
| 299 | </span><span·class="p"·data-group-id=" | 299 | </span><span·class="p"·data-group-id="7067818628-2"><<</span><span·class="n">X</span><span·class="p">,</span><span·class="n">Y</span><span·class="p">,</span><span·class="n">Z</span><span·class="p">,</span><span·class="n">T</span><span·class="o">/</span><span·class="ss">binary</span><span[·...·truncated·by·diffoscope;·len:·36,·SHA:·5cd83fe04c983a24be7283b70ed49ff76d657ce61540cb70f052c10797bc9e27·...·]-2">>></span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">Bin1</span><span·class="p">,</span><span·class="w"> |
| 300 | </span><span·class="n">Bin</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 300 | </span><span·class="n">Bin</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="7067818628-3"><<</span><span·class="n">Bin1</span><span·class="p">,</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p"·data-group-id="7067818628-3">>></span><span·class="w">··</span><span·class="c1">%%·Bin1·will·be·COPIED</span></code></pre><p>The·reason·is·that·a·<a·href="binaryhandling.html#match_context">match·context</a>·contains·a |
| 301 | direct·pointer·to·the·binary·data.</p><p>If·a·process·simply·keeps·binaries·(either·in·"loop·data"·or·in·the·process | 301 | direct·pointer·to·the·binary·data.</p><p>If·a·process·simply·keeps·binaries·(either·in·"loop·data"·or·in·the·process |
| 302 | dictionary),·the·garbage·collector·can·eventually·shrink·the·binaries.·If·only | 302 | dictionary),·the·garbage·collector·can·eventually·shrink·the·binaries.·If·only |
| 303 | one·such·binary·is·kept,·it·will·not·be·shrunk.·If·the·process·later·appends·to | 303 | one·such·binary·is·kept,·it·will·not·be·shrunk.·If·the·process·later·appends·to |
| 304 | a·binary·that·has·been·shrunk,·the·binary·object·will·be·reallocated·to·make | 304 | a·binary·that·has·been·shrunk,·the·binary·object·will·be·reallocated·to·make |
| 305 | place·for·the·data·to·be·appended.</p><h2·id="matching-binaries"·class="section-heading"> | 305 | place·for·the·data·to·be·appended.</p><h2·id="matching-binaries"·class="section-heading"> |
| 306 | ··<a·href="#matching-binaries"·class="hover-link"> | 306 | ··<a·href="#matching-binaries"·class="hover-link"> |
| 307 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 307 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 308 | ··</a> | 308 | ··</a> |
| 309 | ··<span·class="text">Matching·Binaries</span> | 309 | ··<span·class="text">Matching·Binaries</span> |
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| 119 | ··<a·href="#introduction"·class="hover-link"> | 119 | ··<a·href="#introduction"·class="hover-link"> |
| 120 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 120 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 121 | ··</a> | 121 | ··</a> |
| 122 | ··<span·class="text">Introduction</span> | 122 | ··<span·class="text">Introduction</span> |
| 123 | </h2> | 123 | </h2> |
| 124 | <p>The·complete·specification·for·the·bit·syntax·appears·in·the | 124 | <p>The·complete·specification·for·the·bit·syntax·appears·in·the |
| 125 | <a·href="../../doc/system/expressions.html#bit-syntax-expressions">Reference·Manual</a>.</p><p>In·Erlang,·a·Bin·is·used·for·constructing·binaries·and·matching·binary·patterns. | 125 | <a·href="../../doc/system/expressions.html#bit-syntax-expressions">Reference·Manual</a>.</p><p>In·Erlang,·a·Bin·is·used·for·constructing·binaries·and·matching·binary·patterns. |
| 126 | A·Bin·is·written·with·the·following·syntax:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="509 | 126 | A·Bin·is·written·with·the·following·syntax:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="1254094552-1"><<</span><span·class="n">E1</span><span·class="p">,</span><span·class="w">·</span><span·class="n">E2</span><span·class="p">,</span><span·class="w">·</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·cla[·...·truncated·by·diffoscope;·len:·81,·SHA:·fd694c75b82d0b0dbdc715cdd08d45061fd6cc0ec6c1b1cc920d8d561a519391·...·]-1">>></span></code></pre><p>A·Bin·is·a·low-level·sequence·of·bits·or·bytes.·The·purpose·of·a·Bin·is·to |
| 127 | enable·construction·of·binaries:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Bin</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="3 | 127 | enable·construction·of·binaries:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Bin</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="0936470221-1"><<</span><span·class="n">E1</span><span·class="p">,</span><span·class="w">·</span><span·class="n">E2</span><span·class="p">,</span><span·class="w">·</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·cla[·...·truncated·by·diffoscope;·len:·582,·SHA:·67d20c4561544114c97669ed00f16e006be06db46276ced69fd259a2fc4270b2·...·]-1">>></span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">Bin</span></code></pre><p>Here,·<code·class="inline">Bin</code>·is·bound·and·the·elements·are·bound·or·unbound,·as·in·any·match.</p><p>A·Bin·does·not·need·to·consist·of·a·whole·number·of·bytes.</p><p>A·<em>bitstring</em>·is·a·sequence·of·zero·or·more·bits,·where·the·number·of·bits·does |
| 128 | not·need·to·be·divisible·by·8.·If·the·number·of·bits·is·divisible·by·8,·the | 128 | not·need·to·be·divisible·by·8.·If·the·number·of·bits·is·divisible·by·8,·the |
| 129 | bitstring·is·also·a·binary.</p><p>Each·element·specifies·a·certain·<em>segment</em>·of·the·bitstring.·A·segment·is·a·set | 129 | bitstring·is·also·a·binary.</p><p>Each·element·specifies·a·certain·<em>segment</em>·of·the·bitstring.·A·segment·is·a·set |
| 130 | of·contiguous·bits·of·the·binary·(not·necessarily·on·a·byte·boundary).·The·first | 130 | of·contiguous·bits·of·the·binary·(not·necessarily·on·a·byte·boundary).·The·first |
| 131 | element·specifies·the·initial·segment,·the·second·element·specifies·the | 131 | element·specifies·the·initial·segment,·the·second·element·specifies·the |
| 132 | following·segment,·and·so·on.</p><p>The·following·examples·illustrate·how·binaries·are·constructed,·or·matched,·and | 132 | following·segment,·and·so·on.</p><p>The·following·examples·illustrate·how·binaries·are·constructed,·or·matched,·and |
| 133 | how·elements·and·tails·are·specified.</p><h3·id="examples"·class="section-heading"> | 133 | how·elements·and·tails·are·specified.</p><h3·id="examples"·class="section-heading"> |
| 134 | ··<a·href="#examples"·class="hover-link"> | 134 | ··<a·href="#examples"·class="hover-link"> |
| 135 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 135 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 136 | ··</a> | 136 | ··</a> |
| 137 | ··<span·class="text">Examples</span> | 137 | ··<span·class="text">Examples</span> |
| 138 | </h3> | 138 | </h3> |
| 139 | <p><em>Example·1:</em>·A·binary·can·be·constructed·from·a·set·of·constants·or·a·string | 139 | <p><em>Example·1:</em>·A·binary·can·be·constructed·from·a·set·of·constants·or·a·string |
| 140 | literal:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Bin11</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 140 | literal:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Bin11</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="5630922841-1"><<</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">17</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">42</span><span·class="p"·data-group-id="5630922841-1">>></span><span·class="p">,</span><span·class="w"> |
| 141 | </span><span·class="n">Bin12</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 141 | </span><span·class="n">Bin12</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="5630922841-2"><<</span><span·class="s">"abc"</span><span·class="p"·data-group-id="5630922841-2">>></span></code></pre><p>This·gives·two·binaries·of·size·3,·with·the·following·evaluations:</p><ul><li><a·href="../../erts-16.0/doc/html/erlang.html#binary_to_list/1"><code·class="inline">binary_to_list(Bin11)</code></a>·evaluates·to·<code·class="inline">[1,·17,·42]</code>.</li><li><a·href="../../erts-16.0/doc/html/erlang.html#binary_to_list/1"><code·class="inline">binary_to_list(Bin12)</code></a>·evaluates·to·<code·class="inline">[97,·98,·99]</code>.</li></ul><p><em>Example·2:</em>Similarly,·a·binary·can·be·constructed·from·a·set·of·bound |
| 142 | variables:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">A</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="n">B</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">17</span><span·class="p">,</span><span·class="w">·</span><span·class="n">C</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">42</span><span·class="p">,</span><span·class="w"> | 142 | variables:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">A</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="n">B</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">17</span><span·class="p">,</span><span·class="w">·</span><span·class="n">C</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">42</span><span·class="p">,</span><span·class="w"> |
| 143 | </span><span·class="n">Bin2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 143 | </span><span·class="n">Bin2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="7592155981-1"><<</span><span·class="n">A</span><span·class="p">,</span><span·class="w">·</span><span·class="n">B</span><span·class="p">,</span><span·class="w">·</span><span·class="n">C</span><span·class="p">:</span><span·class="mi">16</span><span·cla[·...·truncated·by·diffoscope;·len:·32,·SHA:·4a60f2f1055c471bd09624cd7f5822d351928751926b18c1b8e8552f6ac6ab5c·...·]-1">>></span></code></pre><p>This·gives·a·binary·of·size·4.·Here,·a·<em>size·expression</em>·is·used·for·the |
| 144 | variable·<code·class="inline">C</code>·to·specify·a·16-bits·segment·of·<code·class="inline">Bin2</code>.</p><p><a·href="../../erts-16.0/doc/html/erlang.html#binary_to_list/1"><code·class="inline">binary_to_list(Bin2)</code></a>·evaluates·to·<code·class="inline">[1,·17,·00,·42]</code>.</p><p><em>Example·3:</em>·A·Bin·can·also·be·used·for·matching.·<code·class="inline">D</code>,·<code·class="inline">E</code>,·and·<code·class="inline">F</code>·are·unbound | 144 | variable·<code·class="inline">C</code>·to·specify·a·16-bits·segment·of·<code·class="inline">Bin2</code>.</p><p><a·href="../../erts-16.0/doc/html/erlang.html#binary_to_list/1"><code·class="inline">binary_to_list(Bin2)</code></a>·evaluates·to·<code·class="inline">[1,·17,·00,·42]</code>.</p><p><em>Example·3:</em>·A·Bin·can·also·be·used·for·matching.·<code·class="inline">D</code>,·<code·class="inline">E</code>,·and·<code·class="inline">F</code>·are·unbound |
| 145 | variables,·and·<code·class="inline">Bin2</code>·is·bound,·as·in·Example·2:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 145 | variables,·and·<code·class="inline">Bin2</code>·is·bound,·as·in·Example·2:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="6819989578-1"><<</span><span·class="n">D</span><span·class="p">:</span><span·class="mi">16</span><span·class="p">,</span><span·class="w">·</span><span·class="n">E</span><span·class="p">,</span><span·class="w">·</span><span·class="n">F</span><span·cla[·...·truncated·by·diffoscope;·len:·86,·SHA:·a188d894814380c9a04d02193cd25460d4ad3a8f76310913aa0d9746b00646c5·...·]-1">>></span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">Bin2</span></code></pre><p>This·gives·<code·class="inline">D·=·273</code>,·<code·class="inline">E·=·00</code>,·and·F·binds·to·a·binary·of·size·1: |
| 146 | <code·class="inline">binary_to_list(F)·=·[42]</code>.</p><p><em>Example·4:</em>·The·following·is·a·more·elaborate·example·of·matching.·Here, | 146 | <code·class="inline">binary_to_list(F)·=·[42]</code>.</p><p><em>Example·4:</em>·The·following·is·a·more·elaborate·example·of·matching.·Here, |
| 147 | <code·class="inline">Dgram</code>·is·bound·to·the·consecutive·bytes·of·an·IP·datagram·of·IP·protocol | 147 | <code·class="inline">Dgram</code>·is·bound·to·the·consecutive·bytes·of·an·IP·datagram·of·IP·protocol |
| 148 | version·4.·The·ambition·is·to·extract·the·header·and·the·data·of·the·datagram:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">define</span><span·class="p"·data-group-id=" | 148 | version·4.·The·ambition·is·to·extract·the·header·and·the·data·of·the·datagram:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">define</span><span·class="p"·data-group-id="4856777109-1">(</span><span·class="n">IP_VERSION</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">4</span><span·class="p"·data-group-id="4856777109-1">)</span><span·class="p">.</span><span·class="w"> |
| 149 | </span><span·class="p">-</span><span·class="na">define</span><span·class="p"·data-group-id=" | 149 | </span><span·class="p">-</span><span·class="na">define</span><span·class="p"·data-group-id="4856777109-2">(</span><span·class="n">IP_MIN_HDR_LEN</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">5</span><span·class="p"·data-group-id="4856777109-2">)</span><span·class="p">.</span><span·class="w"> |
| 150 | </span><span·class="n">DgramSize</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">byte_size</span><span·class="p"·data-group-id=" | 150 | </span><span·class="n">DgramSize</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">byte_size</span><span·class="p"·data-group-id="4856777109-3">(</span><span·class="n">Dgram</span><span·class="p"·data-group-id="4856777109-3">)</span><span·class="p">,</span><span·class="w"> |
| 151 | </span><span·class="k">case</span><span·class="w">·</span><span·class="n">Dgram</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> | 151 | </span><span·class="k">case</span><span·class="w">·</span><span·class="n">Dgram</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 152 | ····</span><span·class="p"·data-group-id=" | 152 | ····</span><span·class="p"·data-group-id="4856777109-4"><<</span><span·class="o">?</span><span·class="n">IP_VERSION</span><span·class="p">:</span><span·class="mi">4</span><span·class="p">,</span><span·class="w">·</span><span·class="n">HLen</span><span·class="p">:</span><span·class="mi">4</span><span·class="p">,</span><span·class="w">·</span><span·class="n">SrvcType</span><span·class="p">:</span><span·class="mi">8</span><span·class="p">,</span><span·class="w">·</span><span·class="n">TotLen</span><span·class="p">:</span><span·class="mi">16</span><span·class="p">,</span><span·class="w"> |
| 153 | ······</span><span·class="n">ID</span><span·class="p">:</span><span·class="mi">16</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Flgs</span><span·class="p">:</span><span·class="mi">3</span><span·class="p">,</span><span·class="w">·</span><span·class="n">FragOff</span><span·class="p">:</span><span·class="mi">13</span><span·class="p">,</span><span·class="w"> | 153 | ······</span><span·class="n">ID</span><span·class="p">:</span><span·class="mi">16</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Flgs</span><span·class="p">:</span><span·class="mi">3</span><span·class="p">,</span><span·class="w">·</span><span·class="n">FragOff</span><span·class="p">:</span><span·class="mi">13</span><span·class="p">,</span><span·class="w"> |
| 154 | ······</span><span·class="n">TTL</span><span·class="p">:</span><span·class="mi">8</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Proto</span><span·class="p">:</span><span·class="mi">8</span><span·class="p">,</span><span·class="w">·</span><span·class="n">HdrChkSum</span><span·class="p">:</span><span·class="mi">16</span><span·class="p">,</span><span·class="w"> | 154 | ······</span><span·class="n">TTL</span><span·class="p">:</span><span·class="mi">8</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Proto</span><span·class="p">:</span><span·class="mi">8</span><span·class="p">,</span><span·class="w">·</span><span·class="n">HdrChkSum</span><span·class="p">:</span><span·class="mi">16</span><span·class="p">,</span><span·class="w"> |
| 155 | ······</span><span·class="n">SrcIP</span><span·class="p">:</span><span·class="mi">32</span><span·class="p">,</span><span·class="w"> | 155 | ······</span><span·class="n">SrcIP</span><span·class="p">:</span><span·class="mi">32</span><span·class="p">,</span><span·class="w"> |
| 156 | ······</span><span·class="n">DestIP</span><span·class="p">:</span><span·class="mi">32</span><span·class="p">,</span><span·class="w">·</span><span·class="n">RestDgram</span><span·class="o">/</span><span·class="ss">binary</span><span·class="p"·data-group-id=" | 156 | ······</span><span·class="n">DestIP</span><span·class="p">:</span><span·class="mi">32</span><span·class="p">,</span><span·class="w">·</span><span·class="n">RestDgram</span><span·class="o">/</span><span·class="ss">binary</span><span·class="p"·data-group-id="4856777109-4">>></span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><span·class="n">HLen</span><span·class="o">>=</span><span·class="mi">5</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">4</span><span·class="o">*</span><span·class="n">HLen</span><span·class="o">=<</span><span·class="n">DgramSize</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 157 | ········</span><span·class="n">OptsLen</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">4</span><span·class="o">*</span><span·class="p"·data-group-id=" | 157 | ········</span><span·class="n">OptsLen</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">4</span><span·class="o">*</span><span·class="p"·data-group-id="4856777109-5">(</span><span·class="n">HLen</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">?</span><span·class="n">IP_MIN_HDR_LEN</span><span·class="p"·data-group-id="4856777109-5">)</span><span·class="p">,</span><span·class="w"> |
| 158 | ········</span><span·class="p"·data-group-id=" | 158 | ········</span><span·class="p"·data-group-id="4856777109-6"><<</span><span·class="n">Opts</span><span·class="p">:</span><span·class="n">OptsLen</span><span·class="o">/</span><span·class="ss">binary</span><span·class="p">,</span><span·class="n">Data</span><span·class="o">/</span><span·class="ss">[·...·truncated·by·diffoscope;·len:·54,·SHA:·546940dc43de6f2b932d033b3af9d260658ed4825aecd0a3842e683d525c7121·...·]-6">>></span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">RestDgram</span><span·class="p">,</span><span·class="w"> |
| 159 | ····</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> | 159 | ····</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> |
| 160 | </span><span·class="k">end</span><span·class="p">.</span></code></pre><p>Here,·the·segment·corresponding·to·the·<code·class="inline">Opts</code>·variable·has·a·<em>type·modifier</em>, | 160 | </span><span·class="k">end</span><span·class="p">.</span></code></pre><p>Here,·the·segment·corresponding·to·the·<code·class="inline">Opts</code>·variable·has·a·<em>type·modifier</em>, |
| 161 | specifying·that·<code·class="inline">Opts</code>·is·to·bind·to·a·binary.·All·other·variables·have·the | 161 | specifying·that·<code·class="inline">Opts</code>·is·to·bind·to·a·binary.·All·other·variables·have·the |
| 162 | default·type·equal·to·unsigned·integer.</p><p>An·IP·datagram·header·is·of·variable·length.·This·length·is·measured·in·the | 162 | default·type·equal·to·unsigned·integer.</p><p>An·IP·datagram·header·is·of·variable·length.·This·length·is·measured·in·the |
| 163 | number·of·32-bit·words·and·is·given·in·the·segment·corresponding·to·<code·class="inline">HLen</code>.·The | 163 | number·of·32-bit·words·and·is·given·in·the·segment·corresponding·to·<code·class="inline">HLen</code>.·The |
| 164 | minimum·value·of·<code·class="inline">HLen</code>·is·5.·It·is·the·segment·corresponding·to·<code·class="inline">Opts</code>·that·is | 164 | minimum·value·of·<code·class="inline">HLen</code>·is·5.·It·is·the·segment·corresponding·to·<code·class="inline">Opts</code>·that·is |
| 165 | variable,·so·if·<code·class="inline">HLen</code>·is·equal·to·5,·<code·class="inline">Opts</code>·becomes·an·empty·binary.</p><p>The·tail·variables·<code·class="inline">RestDgram</code>·and·<code·class="inline">Data</code>·bind·to·binaries,·as·all·tail | 165 | variable,·so·if·<code·class="inline">HLen</code>·is·equal·to·5,·<code·class="inline">Opts</code>·becomes·an·empty·binary.</p><p>The·tail·variables·<code·class="inline">RestDgram</code>·and·<code·class="inline">Data</code>·bind·to·binaries,·as·all·tail |
| Offset 218, 80 lines modified | Offset 218, 80 lines modified | ||
| 218 | <p>This·section·describes·the·rules·for·constructing·binaries·using·the·bit·syntax. | 218 | <p>This·section·describes·the·rules·for·constructing·binaries·using·the·bit·syntax. |
| 219 | Unlike·when·constructing·lists·or·tuples,·the·construction·of·a·binary·can·fail | 219 | Unlike·when·constructing·lists·or·tuples,·the·construction·of·a·binary·can·fail |
| 220 | with·a·<code·class="inline">badarg</code>·exception.</p><p>There·can·be·zero·or·more·segments·in·a·binary·to·be·constructed.·The·expression | 220 | with·a·<code·class="inline">badarg</code>·exception.</p><p>There·can·be·zero·or·more·segments·in·a·binary·to·be·constructed.·The·expression |
| 221 | <code·class="inline"><<>></code>·constructs·a·zero·length·binary.</p><p>Each·segment·in·a·binary·can·consist·of·zero·or·more·bits.·There·are·no | 221 | <code·class="inline"><<>></code>·constructs·a·zero·length·binary.</p><p>Each·segment·in·a·binary·can·consist·of·zero·or·more·bits.·There·are·no |
| 222 | alignment·rules·for·individual·segments·of·type·<code·class="inline">integer</code>·and·<code·class="inline">float</code>.·For | 222 | alignment·rules·for·individual·segments·of·type·<code·class="inline">integer</code>·and·<code·class="inline">float</code>.·For |
| 223 | binaries·and·bitstrings·without·size,·the·unit·specifies·the·alignment.·Since | 223 | binaries·and·bitstrings·without·size,·the·unit·specifies·the·alignment.·Since |
| 224 | the·default·alignment·for·the·<code·class="inline">binary</code>·type·is·8,·the·size·of·a·binary·segment | 224 | the·default·alignment·for·the·<code·class="inline">binary</code>·type·is·8,·the·size·of·a·binary·segment |
| 225 | must·be·a·multiple·of·8·bits,·that·is,·only·whole·bytes.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 225 | must·be·a·multiple·of·8·bits,·that·is,·only·whole·bytes.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="8963909834-1"><<</span><span·class="n">Bin</span><span·class="o">/</span><span·class="ss">binary</span><span·class="p">,</span><span·class="n">Bitstring</span><span·class="o">/</span><span·class="ss">bitstring</span><span·class="p"·data-group-id="896[·...·truncated·by·diffoscope;·len:·7,·SHA:·92bae9a0d54ed4635bdc04531dde7b4e06fe3c8ebf6c2c3b967c980dfcc91c30·...·]-1">>></span></code></pre><p>The·variable·<code·class="inline">Bin</code>·must·contain·a·whole·number·of·bytes,·because·the·<code·class="inline">binary</code> |
| 226 | type·defaults·to·<code·class="inline">unit:8</code>.·A·<code·class="inline">badarg</code>·exception·is·generated·if·<code·class="inline">Bin</code>·consist | 226 | type·defaults·to·<code·class="inline">unit:8</code>.·A·<code·class="inline">badarg</code>·exception·is·generated·if·<code·class="inline">Bin</code>·consist |
| 227 | of,·for·example,·17·bits.</p><p>The·<code·class="inline">Bitstring</code>·variable·can·consist·of·any·number·of·bits,·for·example,·0,·1, | 227 | of,·for·example,·17·bits.</p><p>The·<code·class="inline">Bitstring</code>·variable·can·consist·of·any·number·of·bits,·for·example,·0,·1, |
| 228 | 8,·11,·17,·42,·and·so·on.·This·is·because·the·default·<code·class="inline">unit</code>·for·bitstrings | 228 | 8,·11,·17,·42,·and·so·on.·This·is·because·the·default·<code·class="inline">unit</code>·for·bitstrings |
| 229 | is·1.</p><p>For·clarity,·it·is·recommended·not·to·change·the·unit·size·for·binaries. | 229 | is·1.</p><p>For·clarity,·it·is·recommended·not·to·change·the·unit·size·for·binaries. |
| 230 | Instead,·use·<code·class="inline">binary</code>·when·you·need·byte·alignment·and·<code·class="inline">bitstring</code>·when·you·need | 230 | Instead,·use·<code·class="inline">binary</code>·when·you·need·byte·alignment·and·<code·class="inline">bitstring</code>·when·you·need |
| 231 | bit·alignment.</p><p>The·following·example·successfully·constructs·a·bitstring·of·7·bits,·provided | 231 | bit·alignment.</p><p>The·following·example·successfully·constructs·a·bitstring·of·7·bits,·provided |
| 232 | that·all·of·X·and·Y·are·integers:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 232 | that·all·of·X·and·Y·are·integers:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="5626930661-1"><<</span><span·class="n">X</span><span·class="p">:</span><span·class="mi">1</span><span·class="p">,</span><span·class="n">Y</span><span·class="p">:</span><span·class="mi">6</span><span·class="p"·data-group-id="5626930661-1">>></span></code></pre><p>As·mentioned·earlier,·segments·have·the·following·general·syntax:</p><p><code·class="inline">Value:Size/TypeSpecifierList</code></p><p>When·constructing·binaries,·<code·class="inline">Value</code>·and·<code·class="inline">Size</code>·can·be·any·Erlang·expression. |
| 233 | However,·for·syntactical·reasons,·both·<code·class="inline">Value</code>·and·<code·class="inline">Size</code>·must·be·enclosed·in | 233 | However,·for·syntactical·reasons,·both·<code·class="inline">Value</code>·and·<code·class="inline">Size</code>·must·be·enclosed·in |
| 234 | parenthesis·if·the·expression·consists·of·anything·more·than·a·single·literal·or | 234 | parenthesis·if·the·expression·consists·of·anything·more·than·a·single·literal·or |
| 235 | a·variable.·The·following·gives·a·compiler·syntax·error:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 235 | a·variable.·The·following·gives·a·compiler·syntax·error:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="9721247579-1"><<</span><span·class="n">X</span><span·class="o">+</span><span·class="mi">1</span><span·class="p">:</span><span·class="mi">8</span><span·class="p"·data-group-id="9721247579-1">>></span></code></pre><p>This·expression·must·be·rewritten·into·the·following,·to·be·accepted·by·the |
| 236 | compiler:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="27 | 236 | compiler:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="2709239440-1"><<</span><span·class="p"·data-group-id="2709239440-2">(</span><span·class="n">X</span><span·class="o">+</span><span·class="mi">1</span><span·class="p"·data-group-id="2709239440-2">)</span><span·class="p">:</span><span·class="mi">8</span><[·...·truncated·by·diffoscope;·len:·40,·SHA:·7165afae06da574cfb33806c0b0a2f7469909cc4ba0a9d45fce5c3bc5c9059d4·...·]-1">>></span></code></pre><h3·id="including-literal-strings"·class="section-heading"> |
| 237 | ··<a·href="#including-literal-strings"·class="hover-link"> | 237 | ··<a·href="#including-literal-strings"·class="hover-link"> |
| 238 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 238 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 239 | ··</a> | 239 | ··</a> |
| 240 | ··<span·class="text">Including·Literal·Strings</span> | 240 | ··<span·class="text">Including·Literal·Strings</span> |
| 241 | </h3> | 241 | </h3> |
| 242 | <p>A·literal·string·can·be·written·instead·of·an·element:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 242 | <p>A·literal·string·can·be·written·instead·of·an·element:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="4493707117-1"><<</span><span·class="s">"hello"</span><span·class="p"·data-group-id="4493707117-1">>></span></code></pre><p>This·is·syntactic·sugar·for·the·following:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·d[·...·truncated·by·diffoscope;·len:·310,·SHA:·fd23bebd26be6f484b43046c192c90ae0af0f94bae54bd2ca08109d5159f7cec·...·]-1">>></span></code></pre><h2·id="matching-binaries"·class="section-heading"> |
| 243 | ··<a·href="#matching-binaries"·class="hover-link"> | 243 | ··<a·href="#matching-binaries"·class="hover-link"> |
| 244 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 244 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 245 | ··</a> | 245 | ··</a> |
| 246 | ··<span·class="text">Matching·Binaries</span> | 246 | ··<span·class="text">Matching·Binaries</span> |
| 247 | </h2> | 247 | </h2> |
| 248 | <p>This·section·describes·the·rules·for·matching·binaries,·using·the·bit·syntax.</p><p>There·can·be·zero·or·more·segments·in·a·binary·pattern.·A·binary·pattern·can | 248 | <p>This·section·describes·the·rules·for·matching·binaries,·using·the·bit·syntax.</p><p>There·can·be·zero·or·more·segments·in·a·binary·pattern.·A·binary·pattern·can |
| 249 | occur·wherever·patterns·are·allowed,·including·inside·other·patterns.·Binary | 249 | occur·wherever·patterns·are·allowed,·including·inside·other·patterns.·Binary |
| 250 | patterns·cannot·be·nested.·The·pattern·<code·class="inline"><<>></code>·matches·a·zero·length·binary.</p><p>Each·segment·in·a·binary·can·consist·of·zero·or·more·bits.·A·segment·of·type | 250 | patterns·cannot·be·nested.·The·pattern·<code·class="inline"><<>></code>·matches·a·zero·length·binary.</p><p>Each·segment·in·a·binary·can·consist·of·zero·or·more·bits.·A·segment·of·type |
| 251 | <code·class="inline">binary</code>·must·have·a·size·evenly·divisible·by·8·(or·divisible·by·the·unit·size, | 251 | <code·class="inline">binary</code>·must·have·a·size·evenly·divisible·by·8·(or·divisible·by·the·unit·size, |
| 252 | if·the·unit·size·has·been·changed).·A·segment·of·type·<code·class="inline">bitstring</code>·has·no | 252 | if·the·unit·size·has·been·changed).·A·segment·of·type·<code·class="inline">bitstring</code>·has·no |
| 253 | restrictions·on·the·size.·A·segment·of·type·<code·class="inline">float</code>·must·have·size·64·or·32.</p><p>As·mentioned·earlier,·segments·have·the·following·general·syntax:</p><p><code·class="inline">Value:Size/TypeSpecifierList</code></p><p>When·matching·<code·class="inline">Value</code>,·value·must·be·either·a·variable·or·an·integer,·or·a | 253 | restrictions·on·the·size.·A·segment·of·type·<code·class="inline">float</code>·must·have·size·64·or·32.</p><p>As·mentioned·earlier,·segments·have·the·following·general·syntax:</p><p><code·class="inline">Value:Size/TypeSpecifierList</code></p><p>When·matching·<code·class="inline">Value</code>,·value·must·be·either·a·variable·or·an·integer,·or·a |
| 254 | floating·point·literal.·Expressions·are·not·allowed.</p><p><code·class="inline">Size</code>·must·be·a | 254 | floating·point·literal.·Expressions·are·not·allowed.</p><p><code·class="inline">Size</code>·must·be·a |
| 255 | <a·href="../../doc/system/expressions.html#guard-expressions">guard·expression</a>,·which·can·use | 255 | <a·href="../../doc/system/expressions.html#guard-expressions">guard·expression</a>,·which·can·use |
| 256 | literals·and·previously·bound·variables.·The·following·is·not·allowed:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">foo</span><span·class="p"·data-group-id=" | 256 | literals·and·previously·bound·variables.·The·following·is·not·allowed:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">foo</span><span·class="p"·data-group-id="7129578582-1">(</span><span·class="n">N</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="7129578582-2"><<</span><span·class="n">X</span><span·class="p">:</span><span·class="n">N</span><span·class="p">,</span><span·[·...·truncated·by·diffoscope;·len:·173,·SHA:·55e17d67934b5b9c59e1b76b3db5d4fcfb78088a4f456c093ab40a694b296409·...·]-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 257 | ···</span><span·class="p"·data-group-id=" | 257 | ···</span><span·class="p"·data-group-id="7129578582-3">{</span><span·class="n">X</span><span·class="p">,</span><span·class="n">T</span><span·class="p"·data-group-id="7129578582-3">}</span><span·class="p">.</span></code></pre><p>The·two·occurrences·of·<code·class="inline">N</code>·are·not·related.·The·compiler·will·complain·that·the |
| 258 | <code·class="inline">N</code>·in·the·size·field·is·unbound.</p><p>The·correct·way·to·write·this·example·is·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">foo</span><span·class="p"·data-group-id=" | 258 | <code·class="inline">N</code>·in·the·size·field·is·unbound.</p><p>The·correct·way·to·write·this·example·is·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">foo</span><span·class="p"·data-group-id="5809536824-1">(</span><span·class="n">N</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Bin</span><span·class="p"·data-group-id="5809536824-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 259 | ···</span><span·class="p"·data-group-id=" | 259 | ···</span><span·class="p"·data-group-id="5809536824-2"><<</span><span·class="n">X</span><span·class="p">:</span><span·class="n">N</span><span·class="p">,</span><span·class="n">T</span><span·class="o">/</span><span·class="ss">binary</span><span·class="p"·data-group-id="5809536824-2">>></span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">Bin</span><span·class="p">,</span><span·class="w"> |
| 260 | ···</span><span·class="p"·data-group-id=" | 260 | ···</span><span·class="p"·data-group-id="5809536824-3">{</span><span·class="n">X</span><span·class="p">,</span><span·class="n">T</span><span·class="p"·data-group-id="5809536824-3">}</span><span·class="p">.</span></code></pre><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>Before·OTP·23,·<code·class="inline">Size</code>·was·restricted·to·be·an·integer·or·a·variable·bound·to |
| 261 | an·integer.</p></section><h3·id="binding-and-using-a-size-variable"·class="section-heading"> | 261 | an·integer.</p></section><h3·id="binding-and-using-a-size-variable"·class="section-heading"> |
| 262 | ··<a·href="#binding-and-using-a-size-variable"·class="hover-link"> | 262 | ··<a·href="#binding-and-using-a-size-variable"·class="hover-link"> |
| 263 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 263 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 264 | ··</a> | 264 | ··</a> |
| 265 | ··<span·class="text">Binding·and·Using·a·Size·Variable</span> | 265 | ··<span·class="text">Binding·and·Using·a·Size·Variable</span> |
| 266 | </h3> | 266 | </h3> |
| 267 | <p>There·is·one·exception·to·the·rule·that·a·variable·that·is·used·as·size·must·be | 267 | <p>There·is·one·exception·to·the·rule·that·a·variable·that·is·used·as·size·must·be |
| 268 | previously·bound.·It·is·possible·to·match·and·bind·a·variable,·and·use·it·as·a | 268 | previously·bound.·It·is·possible·to·match·and·bind·a·variable,·and·use·it·as·a |
| 269 | size·within·the·same·binary·pattern.·For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">bar</span><span·class="p"·data-group-id=" | 269 | size·within·the·same·binary·pattern.·For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">bar</span><span·class="p"·data-group-id="2214674023-1">(</span><span·class="p"·data-group-id="2214674023-2"><<</span><span·class="n">Sz</span><span·class="p">:</span><span·class="mi">8</span><span·class="p">,</span><span·class="n">Payload</span><span·class="p">:</span><span·class="n">Sz</sp[·...·truncated·by·diffoscope;·len:·364,·SHA:·0c176dbd0e118f95a5d13fe3b2d4d1da14a603f8136931833c5a33da3f0c4120·...·]-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 270 | ···</span><span·class="p"·data-group-id="2214674023-3">{</span><span·class="n">Payload</span><span·class="p">,</span><span·class="n">Rest</span><span·class="p"·data-group-id="2214674023-3">}</span><span·class="p">.</span></code></pre><p>Here·<code·class="inline">Sz</code>·is·bound·to·the·value·in·the·first·byte·of·the·binary.·<code·class="inline">Sz</code>·is·then | ||
| 271 | used·at·the·number·of·bytes·to·match·out·as·a·binary.</p><p>Starting·in·OTP·23,·the·size·can·be·a·guard·expression:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">bar</span><span·class="p"·data-group-id="2228771677-1">(</span><span·class="p"·data-group-id="2228771677-2"><<</span><span·class="n">Sz</span><span·class="p">:</span><span·class="mi">8</span><span·class="p">,</span><span·class="n">Payload</span><span·class="p">:</span><span·class="p"·data-group-id="2228771677-3">(</span><span·class="p"·data-group-id="2228771677-4">(</span><span·class="n">Sz</span><span·class="o">-</span><span·class="mi">1</span><span·class="p"·data-group-id="2228771677-4">)</span><span·class="o">*</span><span·class="mi">8</span><span·class="p"·data-group-id="2228771677-3">)</span><span·class="o">/</span><span·class="ss">binary</span><span·class="p">,</span><span·class="n">Rest</span><span·class="o">/</span><span·class="ss">binary</span><span·class="p"·data-group-id="2228771677-2">>></span><span·class="p"·data-group-id="2228771677-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | ||
| 270 | ···</span><span·class="p"·data-group-id=" | 272 | ···</span><span·class="p"·data-group-id="2228771677-5">{</span><span·class="n">Payload</span><span·class="p">,</span><span·class="n">Rest</span><span·class="p"·data-group-id="2228771677-5">}</span><span·class="p">.</span></code></pre><p>Here·<code·class="inline">Sz</code>·is·the·combined·size·of·[·...·truncated·by·diffoscope;·len:·46,·SHA:·d0b6d114708e778d0e39df8bdf4348dbe99c13881c34a8eaa4857ce97f752e5a·...·] |
| 271 | used·at·the·number·of·bytes·to·match·out·as·a·binary.</p><p>Starting·in·OTP·23,·the·size·can·be·a·guard·expression:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">bar</span><span·class="p"·data-group-id="2029405891-1">(</span><span·class="p"·data-group-id="2029405891-2"><<</span><span·class="n">Sz</span><span·class="p">:</span><span·class="mi">8</span><span·class="p">,</span><span·class="n">Payload</span><span·class="p">:</span><span·class="p"·data-group-id="2029405891-3">(</span><span·class="p"·data-group-id="2029405891-4">(</span><span·class="n">Sz</span><span·class="o">-</span><span·class="mi">1</span><span·class="p"·data-group-id="2029405891-4">)</span><span·class="o">*</span><span·class="mi">8</span><span·class="p"·data-group-id="2029405891-3">)</span><span·class="o">/</span><span·class="ss">binary</span><span·class="p">,</span><span·class="n">Rest</span><span·class="o">/</span><span·class="ss">binary</span><span·class="p"·data-group-id="2029405891-2">>></span><span·class="p"·data-group-id="2029405891-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | ||
| 272 | ···</span><span·class="p"·data-group-id="2029405891-5">{</span><span·class="n">Payload</span><span·class="p">,</span><span·class="n">Rest</span><span·class="p"·data-group-id="2029405891-5">}</span><span·class="p">.</span></code></pre><p>Here·<code·class="inline">Sz</code>·is·the·combined·size·of·the·header·and·the·payload,·so·we·will·need·to | ||
| 273 | subtract·one·byte·to·get·the·size·of·the·payload.</p><h3·id="getting-the-rest-of-the-binary-or-bitstring"·class="section-heading"> | 273 | subtract·one·byte·to·get·the·size·of·the·payload.</p><h3·id="getting-the-rest-of-the-binary-or-bitstring"·class="section-heading"> |
| 274 | ··<a·href="#getting-the-rest-of-the-binary-or-bitstring"·class="hover-link"> | 274 | ··<a·href="#getting-the-rest-of-the-binary-or-bitstring"·class="hover-link"> |
| 275 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 275 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 276 | ··</a> | 276 | ··</a> |
| 277 | ··<span·class="text">Getting·the·Rest·of·the·Binary·or·Bitstring</span> | 277 | ··<span·class="text">Getting·the·Rest·of·the·Binary·or·Bitstring</span> |
| 278 | </h3> | 278 | </h3> |
| 279 | <p>To·match·out·the·rest·of·a·binary,·specify·a·binary·field·without·size:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">foo</span><span·class="p"·data-group-id="74 | 279 | <p>To·match·out·the·rest·of·a·binary,·specify·a·binary·field·without·size:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">foo</span><span·class="p"·data-group-id="1749168608-1">(</span><span·class="p"·data-group-id="1749168608-2"><<</span><span·class="n">A</span><span·class="p">:</span><span·class="mi">8</span><span·class="p">,</span><span·class="n">Rest</span><span·class="o">/</span><span·class="ss">binary</s[·...·truncated·by·diffoscope;·len:·784,·SHA:·918f7c564fa38f32885fd7edfe7a16f01982ee6ac46340ef80009d5f496825b5·...·]-1">)</span><span·class="w">·</span><span·class="p">-></span></code></pre><p>There·are·no·restrictions·on·the·number·of·bits·in·the·tail.</p><h2·id="appending-to-a-binary"·class="section-heading"> |
| 280 | ··<a·href="#appending-to-a-binary"·class="hover-link"> | 280 | ··<a·href="#appending-to-a-binary"·class="hover-link"> |
| 281 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 281 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 282 | ··</a> | 282 | ··</a> |
| 283 | ··<span·class="text">Appending·to·a·Binary</span> | 283 | ··<span·class="text">Appending·to·a·Binary</span> |
| 284 | </h2> | 284 | </h2> |
| 285 | <p>Appending·to·a·binary·in·an·efficient·way·can·be·done·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">triples_to_bin</span><span·class="p"·data-group-id=" | 285 | <p>Appending·to·a·binary·in·an·efficient·way·can·be·done·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">triples_to_bin</span><span·class="p"·data-group-id="8611817506-1">(</span><span·class="n">T</span><span·class="p"·data-group-id="8611817506-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 286 | ····</span><span·class="nf">triples_to_bin</span><span·class="p"·data-group-id=" | 286 | ····</span><span·class="nf">triples_to_bin</span><span·class="p"·data-group-id="8611817506-2">(</span><span·class="n">T</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8611817506-3"><<</span><span·class="p"·data-group-id="8611817506-3">>></span><span·class="p"·data-group-id="8611817506-2">)</span><span·class="p">.</span><span·class="w"> |
| 287 | </span><span·class="nf">triples_to_bin</span><span·class="p"·data-group-id=" | 287 | </span><span·class="nf">triples_to_bin</span><span·class="p"·data-group-id="8611817506-4">(</span><span·class="p"·data-group-id="8611817506-5">[</span><span·class="p"·data-group-id="8611817506-6">{</span><span·class="n">X</span><span·class="p">,</span><span·class="n">Y</span><span·class="p">,</span><span·class="n">Z</span><span·cl[·...·truncated·by·diffoscope;·len:·309,·SHA:·01f52dbdd4546a5df7edc2dbe60efee0cca9f7ee3f7a8e40696f5c794e62b62e·...·]-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 288 | ····</span><span·class="nf">triples_to_bin</span><span·class="p"·data-group-id=" | 288 | ····</span><span·class="nf">triples_to_bin</span><span·class="p"·data-group-id="8611817506-7">(</span><span·class="n">T</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8611817506-8"><<</span><span·class="n">Acc</span><span·class="o">/</span><span·class="ss">binary</span><span·class="p">,</spa[·...·truncated·by·diffoscope;·len:·373,·SHA:·b4450cf468bb963014fb949ec5aa22dc57e639a52748b469ef5929caaad7827c·...·]-7">)</span><span·class="p">;</span><span·class="w"> |
| 289 | </span><span·class="nf">triples_to_bin</span><span·class="p"·data-group-id=" | 289 | </span><span·class="nf">triples_to_bin</span><span·class="p"·data-group-id="8611817506-9">(</span><span·class="p"·data-group-id="8611817506-10">[</span><span·class="p"·data-group-id="8611817506-10">]</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Acc</span><span·class="p"·data-group-id="8611817506-9">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 290 | ····</span><span·class="n">Acc</span><span·class="p">.</span></code></pre> | 290 | ····</span><span·class="n">Acc</span><span·class="p">.</span></code></pre> |
| 291 | </div> | 291 | </div> |
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| Offset 148, 101 lines modified | Offset 148, 101 lines modified | ||
| 148 | external·program,·if·it·is·written·properly).</p><p>The·port·is·created·using·the·BIF·<a·href="../../erts-16.0/doc/html/erlang.html#open_port/2"><code·class="inline">open_port/2</code></a>·with | 148 | external·program,·if·it·is·written·properly).</p><p>The·port·is·created·using·the·BIF·<a·href="../../erts-16.0/doc/html/erlang.html#open_port/2"><code·class="inline">open_port/2</code></a>·with |
| 149 | <code·class="inline">{spawn,ExtPrg}</code>·as·the·first·argument.·The·string·<code·class="inline">ExtPrg</code>·is·the·name·of·the | 149 | <code·class="inline">{spawn,ExtPrg}</code>·as·the·first·argument.·The·string·<code·class="inline">ExtPrg</code>·is·the·name·of·the |
| 150 | external·program,·including·any·command·line·arguments.·The·second·argument·is·a | 150 | external·program,·including·any·command·line·arguments.·The·second·argument·is·a |
| 151 | list·of·options,·in·this·case·only·<code·class="inline">{packet,2}</code>.·This·option·says·that·a·2·byte | 151 | list·of·options,·in·this·case·only·<code·class="inline">{packet,2}</code>.·This·option·says·that·a·2·byte |
| 152 | length·indicator·is·to·be·used·to·simplify·the·communication·between·C·and | 152 | length·indicator·is·to·be·used·to·simplify·the·communication·between·C·and |
| 153 | Erlang.·The·Erlang·port·automatically·adds·the·length·indicator,·but·this·must | 153 | Erlang.·The·Erlang·port·automatically·adds·the·length·indicator,·but·this·must |
| 154 | be·done·explicitly·in·the·external·C·program.</p><p>The·process·is·also·set·to·trap·exits,·which·enables·detection·of·failure·of·the | 154 | be·done·explicitly·in·the·external·C·program.</p><p>The·process·is·also·set·to·trap·exits,·which·enables·detection·of·failure·of·the |
| 155 | external·program:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 155 | external·program:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="6089693528-1">(</span><span·class="ss">complex1</span><span·class="p"·data-group-id="6089693528-1">)</span><span·class="p">.</span><span·class="w"> |
| 156 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 156 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="6089693528-2">(</span><span·class="p"·data-group-id="6089693528-3">[</span><span·class="ss">start</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">init</span><span·class="p">/</span><sp[·...·truncated·by·diffoscope;·len:·116,·SHA:·692c19de980418e94536d4098baa5d618c5a0ecc823c00d10146be447469bd7c·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 157 | </span><span·class="nf">start</span><span·class="p"·data-group-id=" | 157 | </span><span·class="nf">start</span><span·class="p"·data-group-id="6089693528-4">(</span><span·class="n">ExtPrg</span><span·class="p"·data-group-id="6089693528-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 158 | ··</span><span·class="nf">spawn</span><span·class="p"·data-group-id=" | 158 | ··</span><span·class="nf">spawn</span><span·class="p"·data-group-id="6089693528-5">(</span><span·class="o">?</span><span·class="n">MODULE</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">init</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6089693528-6">[</span><spa[·...·truncated·by·diffoscope;·len:·119,·SHA:·1b05c6443267495bc3e5c1aa967781ee6a9dea337a12ddfd84ae488777d8eaa6·...·]-5">)</span><span·class="p">.</span><span·class="w"> |
| 159 | </span><span·class="nf">init</span><span·class="p"·data-group-id=" | 159 | </span><span·class="nf">init</span><span·class="p"·data-group-id="6089693528-7">(</span><span·class="n">ExtPrg</span><span·class="p"·data-group-id="6089693528-7">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 160 | ··</span><span·class="nf">register</span><span·class="p"·data-group-id=" | 160 | ··</span><span·class="nf">register</span><span·class="p"·data-group-id="6089693528-8">(</span><span·class="ss">complex</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">self</span><span·class="p"·data-group-id="6089693528-9">(</span><span·class="p"·data-group-id="6089693528-9">)</span><span·class="p"·data-[·...·truncated·by·diffoscope;·len:·20,·SHA:·533a38189f9fe69afe6d1f269b985a56b62674c72ade36438f5da700a507c103·...·]-8">)</span><span·class="p">,</span><span·class="w"> |
| 161 | ··</span><span·class="nf">process_flag</span><span·class="p"·data-group-id=" | 161 | ··</span><span·class="nf">process_flag</span><span·class="p"·data-group-id="6089693528-10">(</span><span·class="ss">trap_exit</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">true</span><span·class="p"·data-group-id="6089693528-10">)</span><span·class="p">,</span><span·class="w"> |
| 162 | ··</span><span·class="n">Port</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">open_port</span><span·class="p"·data-group-id=" | 162 | ··</span><span·class="n">Port</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">open_port</span><span·class="p"·data-group-id="6089693528-11">(</span><span·class="p"·data-group-id="6089693528-12">{</span><span·class="nb">spawn</span><span·class="p">,</span><span·class="w">·</span><span·class="n">ExtPrg</span><span·class="p"·data-group-id="6089693528-12">}</span><span·class="p">,</[·...·truncated·by·diffoscope;·len:·389,·SHA:·9789e67bd911990e8a804c3ecde72158af43795c8ee7c1207f06fe36126b384d·...·]-11">)</span><span·class="p">,</span><span·class="w"> |
| 163 | ··</span><span·class="nf">loop</span><span·class="p"·data-group-id=" | 163 | ··</span><span·class="nf">loop</span><span·class="p"·data-group-id="6089693528-15">(</span><span·class="n">Port</span><span·class="p"·data-group-id="6089693528-15">)</span><span·class="p">.</span></code></pre><p>Now·<code·class="inline">complex1:foo/1</code>·and·<code·class="inline">complex1:bar/1</code>·can·be·implemented.·Both·send·a |
| 164 | message·to·the·<code·class="inline">complex</code>·process·and·receive·the·following·replies:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">foo</span><span·class="p"·data-group-id=" | 164 | message·to·the·<code·class="inline">complex</code>·process·and·receive·the·following·replies:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">foo</span><span·class="p"·data-group-id="2878564973-1">(</span><span·class="n">X</span><span·class="p"·data-group-id="2878564973-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 165 | ··</span><span·class="nf">call_port</span><span·class="p"·data-group-id=" | 165 | ··</span><span·class="nf">call_port</span><span·class="p"·data-group-id="2878564973-2">(</span><span·class="p"·data-group-id="2878564973-3">{</span><span·class="ss">foo</span><span·class="p">,</span><span·class="w">·</span><span·class="n">X</span><span·class="p"·data-group-id="2878564973-3">}</span><span·class="p"·data-group-id[·...·truncated·by·diffoscope;·len:·12,·SHA:·411467356dc31ab1406ddb0b7eee75aa3ea081ad91959fdab046c62385253613·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 166 | </span><span·class="nf">bar</span><span·class="p"·data-group-id=" | 166 | </span><span·class="nf">bar</span><span·class="p"·data-group-id="2878564973-4">(</span><span·class="n">Y</span><span·class="p"·data-group-id="2878564973-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 167 | ··</span><span·class="nf">call_port</span><span·class="p"·data-group-id=" | 167 | ··</span><span·class="nf">call_port</span><span·class="p"·data-group-id="2878564973-5">(</span><span·class="p"·data-group-id="2878564973-6">{</span><span·class="ss">bar</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Y</span><span·class="p"·data-group-id="2878564973-6">}</span><span·class="p"·data-group-id[·...·truncated·by·diffoscope;·len:·12,·SHA:·411467356dc31ab1406ddb0b7eee75aa3ea081ad91959fdab046c62385253613·...·]-5">)</span><span·class="p">.</span><span·class="w"> |
| 168 | </span><span·class="nf">call_port</span><span·class="p"·data-group-id=" | 168 | </span><span·class="nf">call_port</span><span·class="p"·data-group-id="2878564973-7">(</span><span·class="n">Msg</span><span·class="p"·data-group-id="2878564973-7">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 169 | ··</span><span·class="ss">complex</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id=" | 169 | ··</span><span·class="ss">complex</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id="2878564973-8">{</span><span·class="ss">call</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">self</span><span·class="p"·data-group-id="2878564973-9">(</span><span·class="p"·data-group-id="2878564973-9">)</span><span·class="p">,</span>[·...·truncated·by·diffoscope;·len:·91,·SHA:·0626905ff5ef200e881211cc54a9fc658703b87484d934ec2ef852bd58e54c74·...·]-8">}</span><span·class="p">,</span><span·class="w"> |
| 170 | ··</span><span·class="k">receive</span><span·class="w"> | 170 | ··</span><span·class="k">receive</span><span·class="w"> |
| 171 | ····</span><span·class="p"·data-group-id=" | 171 | ····</span><span·class="p"·data-group-id="2878564973-10">{</span><span·class="ss">complex</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Result</span><span·class="p"·data-group-id="2878564973-10">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 172 | ······</span><span·class="n">Result</span><span·class="w"> | 172 | ······</span><span·class="n">Result</span><span·class="w"> |
| 173 | ··</span><span·class="k">end</span><span·class="p">.</span></code></pre><p>The·<code·class="inline">complex</code>·process·does·the·following:</p><ul><li>Encodes·the·message·into·a·sequence·of·bytes.</li><li>Sends·it·to·the·port.</li><li>Waits·for·a·reply.</li><li>Decodes·the·reply.</li><li>Sends·it·back·to·the·caller:</li></ul><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">loop</span><span·class="p"·data-group-id=" | 173 | ··</span><span·class="k">end</span><span·class="p">.</span></code></pre><p>The·<code·class="inline">complex</code>·process·does·the·following:</p><ul><li>Encodes·the·message·into·a·sequence·of·bytes.</li><li>Sends·it·to·the·port.</li><li>Waits·for·a·reply.</li><li>Decodes·the·reply.</li><li>Sends·it·back·to·the·caller:</li></ul><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">loop</span><span·class="p"·data-group-id="7632236401-1">(</span><span·class="n">Port</span><span·class="p"·data-group-id="7632236401-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 174 | ··</span><span·class="k">receive</span><span·class="w"> | 174 | ··</span><span·class="k">receive</span><span·class="w"> |
| 175 | ····</span><span·class="p"·data-group-id=" | 175 | ····</span><span·class="p"·data-group-id="7632236401-2">{</span><span·class="ss">call</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Caller</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Msg</span><span·class="p"·data-group-id="7632236401-2">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 176 | ······</span><span·class="n">Port</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id=" | 176 | ······</span><span·class="n">Port</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id="7632236401-3">{</span><span·class="nf">self</span><span·class="p"·data-group-id="7632236401-4">(</span><span·class="p"·data-group-id="7632236401-4">)</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="7632236401-5">{</span[·...·truncated·by·diffoscope;·len:·336,·SHA:·b5c0f60b760f8983c1f4acec3713041be74c18ba2912d8f6da6d8aa423659f0d·...·]-3">}</span><span·class="p">,</span><span·class="w"> |
| 177 | ······</span><span·class="k">receive</span><span·class="w"> | 177 | ······</span><span·class="k">receive</span><span·class="w"> |
| 178 | ········</span><span·class="p"·data-group-id=" | 178 | ········</span><span·class="p"·data-group-id="7632236401-7">{</span><span·class="n">Port</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="7632236401-8">{</span><span·class="ss">data</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Data</span><sp[·...·truncated·by·diffoscope;·len:·91,·SHA:·0a104add450b5b3f577a1fde8d3832760483ee39a53087188d712305dc2a0ca0·...·]-7">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 179 | ··········</span><span·class="n">Caller</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id=" | 179 | ··········</span><span·class="n">Caller</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id="7632236401-9">{</span><span·class="ss">complex</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">decode</span><span·class="p"·data-group-id="7632236401-10">(</span><span·class="n">Data</span><span·class="p"·data-group-id="7632236401-10[·...·truncated·by·diffoscope;·len:·51,·SHA:·e8b1dfcb0acf2244f37ea599d51bc296b6ff4310c8b266b5792dec48487625d3·...·]-9">}</span><span·class="w"> |
| 180 | ······</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> | 180 | ······</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> |
| 181 | ······</span><span·class="nf">loop</span><span·class="p"·data-group-id=" | 181 | ······</span><span·class="nf">loop</span><span·class="p"·data-group-id="7632236401-11">(</span><span·class="n">Port</span><span·class="p"·data-group-id="7632236401-11">)</span><span·class="w"> |
| 182 | ··</span><span·class="k">end</span><span·class="p">.</span></code></pre><p>Assuming·that·both·the·arguments·and·the·results·from·the·C·functions·are·less | 182 | ··</span><span·class="k">end</span><span·class="p">.</span></code></pre><p>Assuming·that·both·the·arguments·and·the·results·from·the·C·functions·are·less |
| 183 | than·256,·a·simple·encoding/decoding·scheme·is·employed.·In·this·scheme,·<code·class="inline">foo</code> | 183 | than·256,·a·simple·encoding/decoding·scheme·is·employed.·In·this·scheme,·<code·class="inline">foo</code> |
| 184 | is·represented·by·byte·1,·<code·class="inline">bar</code>·is·represented·by·2,·and·the·argument/result·is | 184 | is·represented·by·byte·1,·<code·class="inline">bar</code>·is·represented·by·2,·and·the·argument/result·is |
| 185 | represented·by·a·single·byte·as·well:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">encode</span><span·class="p"·data-group-id=" | 185 | represented·by·a·single·byte·as·well:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">encode</span><span·class="p"·data-group-id="3633506436-1">(</span><span·class="p"·data-group-id="3633506436-2">{</span><span·class="ss">foo</span><span·class="p">,</span><span·class="w">·</span><span·class="n">X</span><span·class="p"·data-group-id="3633506436-2">}</span><span·class="p"·data-group-id[·...·truncated·by·diffoscope;·len:·291,·SHA:·1d754bac2270c75d5883af66fa88c97b0a658dc8c302d7a09fb2721b05abfb7d·...·]-3">]</span><span·class="p">;</span><span·class="w"> |
| 186 | </span><span·class="nf">encode</span><span·class="p"·data-group-id=" | 186 | </span><span·class="nf">encode</span><span·class="p"·data-group-id="3633506436-4">(</span><span·class="p"·data-group-id="3633506436-5">{</span><span·class="ss">bar</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Y</span><span·class="p"·data-group-id="3633506436-5">}</span><span·class="p"·data-group-id[·...·truncated·by·diffoscope;·len:·291,·SHA:·aa05dd4461a2245d992de434da558aeccab55cc6b73e94e582eb1d8bbd1d3b16·...·]-6">]</span><span·class="p">.</span><span·class="w"> |
| 187 | </span><span·class="nf">decode</span><span·class="p"·data-group-id=" | 187 | </span><span·class="nf">decode</span><span·class="p"·data-group-id="3633506436-7">(</span><span·class="p"·data-group-id="3633506436-8">[</span><span·class="n">Int</span><span·class="p"·data-group-id="3633506436-8">]</span><span·class="p"·data-group-id="3633506436-7">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">Int</span><span·class="p">.</span></code></pre><p>The·resulting·Erlang·program,·including·functionality·for·stopping·the·port·and |
| 188 | detecting·port·failures,·is·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 188 | detecting·port·failures,·is·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="6851362581-1">(</span><span·class="ss">complex1</span><span·class="p"·data-group-id="6851362581-1">)</span><span·class="p">.</span><span·class="w"> |
| 189 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 189 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="6851362581-2">(</span><span·class="p"·data-group-id="6851362581-3">[</span><span·class="ss">start</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">stop</span><span·class="p">/</span><sp[·...·truncated·by·diffoscope;·len:·241,·SHA:·b8f8def3cd985cec180904f3ac37799edbb2353bd991a8a3f209e769530f6e65·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 190 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 190 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="6851362581-4">(</span><span·class="p"·data-group-id="6851362581-5">[</span><span·class="ss">foo</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">bar</span><span·class="p">/</span><span·[·...·truncated·by·diffoscope;·len:·113,·SHA:·eba8f5b2afdb415ebfb8e5bae74fcd7db1041d980627b8f057dece42a4e39580·...·]-4">)</span><span·class="p">.</span><span·class="w"> |
| 191 | </span><span·class="nf">start</span><span·class="p"·data-group-id=" | 191 | </span><span·class="nf">start</span><span·class="p"·data-group-id="6851362581-6">(</span><span·class="n">ExtPrg</span><span·class="p"·data-group-id="6851362581-6">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 192 | ····</span><span·class="nf">spawn</span><span·class="p"·data-group-id=" | 192 | ····</span><span·class="nf">spawn</span><span·class="p"·data-group-id="6851362581-7">(</span><span·class="o">?</span><span·class="n">MODULE</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">init</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6851362581-8">[</span><spa[·...·truncated·by·diffoscope;·len:·119,·SHA:·1ba788bfa534e4399b54bd756f9b5256672601b2ab5aee00f88099f35d65f4e6·...·]-7">)</span><span·class="p">.</span><span·class="w"> |
| 193 | </span><span·class="nf">stop</span><span·class="p"·data-group-id=" | 193 | </span><span·class="nf">stop</span><span·class="p"·data-group-id="6851362581-9">(</span><span·class="p"·data-group-id="6851362581-9">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 194 | ····</span><span·class="ss">complex</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="ss">stop</span><span·class="p">.</span><span·class="w"> | 194 | ····</span><span·class="ss">complex</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="ss">stop</span><span·class="p">.</span><span·class="w"> |
| 195 | </span><span·class="nf">foo</span><span·class="p"·data-group-id=" | 195 | </span><span·class="nf">foo</span><span·class="p"·data-group-id="6851362581-10">(</span><span·class="n">X</span><span·class="p"·data-group-id="6851362581-10">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 196 | ····</span><span·class="nf">call_port</span><span·class="p"·data-group-id=" | 196 | ····</span><span·class="nf">call_port</span><span·class="p"·data-group-id="6851362581-11">(</span><span·class="p"·data-group-id="6851362581-12">{</span><span·class="ss">foo</span><span·class="p">,</span><span·class="w">·</span><span·class="n">X</span><span·class="p"·data-group-id="6851362581-12">}</span><span·class="p"·data-group[·...·truncated·by·diffoscope;·len:·15,·SHA:·de19449b66d431f6f3ec07698ac7debb6bf7c04b166f883e0e10996bd1799d89·...·]-11">)</span><span·class="p">.</span><span·class="w"> |
| 197 | </span><span·class="nf">bar</span><span·class="p"·data-group-id=" | 197 | </span><span·class="nf">bar</span><span·class="p"·data-group-id="6851362581-13">(</span><span·class="n">Y</span><span·class="p"·data-group-id="6851362581-13">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 198 | ····</span><span·class="nf">call_port</span><span·class="p"·data-group-id=" | 198 | ····</span><span·class="nf">call_port</span><span·class="p"·data-group-id="6851362581-14">(</span><span·class="p"·data-group-id="6851362581-15">{</span><span·class="ss">bar</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Y</span><span·class="p"·data-group-id="6851362581-15">}</span><span·class="p"·data-group[·...·truncated·by·diffoscope;·len:·15,·SHA:·de19449b66d431f6f3ec07698ac7debb6bf7c04b166f883e0e10996bd1799d89·...·]-14">)</span><span·class="p">.</span><span·class="w"> |
| 199 | </span><span·class="nf">call_port</span><span·class="p"·data-group-id=" | 199 | </span><span·class="nf">call_port</span><span·class="p"·data-group-id="6851362581-16">(</span><span·class="n">Msg</span><span·class="p"·data-group-id="6851362581-16">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 200 | ····</span><span·class="ss">complex</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id=" | 200 | ····</span><span·class="ss">complex</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id="6851362581-17">{</span><span·class="ss">call</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">self</span><span·class="p"·data-group-id="6851362581-18">(</span><span·class="p"·data-group-id="6851362581-18">)</span><span·class="p">,</sp[·...·truncated·by·diffoscope;·len:·94,·SHA:·3183a10e501c167870f46d09f586fc534fdae1fb0e7e9d9f9a0bead370c81017·...·]-17">}</span><span·class="p">,</span><span·class="w"> |
| 201 | ····</span><span·class="k">receive</span><span·class="w"> | 201 | ····</span><span·class="k">receive</span><span·class="w"> |
| 202 | » </span><span·class="p"·data-group-id=" | 202 | » </span><span·class="p"·data-group-id="6851362581-19">{</span><span·class="ss">complex</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Result</span><span·class="p"·data-group-id="6851362581-19">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 203 | » ····</span><span·class="n">Result</span><span·class="w"> | 203 | » ····</span><span·class="n">Result</span><span·class="w"> |
| 204 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> | 204 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> |
| 205 | </span><span·class="nf">init</span><span·class="p"·data-group-id=" | 205 | </span><span·class="nf">init</span><span·class="p"·data-group-id="6851362581-20">(</span><span·class="n">ExtPrg</span><span·class="p"·data-group-id="6851362581-20">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 206 | ····</span><span·class="nf">register</span><span·class="p"·data-group-id=" | 206 | ····</span><span·class="nf">register</span><span·class="p"·data-group-id="6851362581-21">(</span><span·class="ss">complex</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">self</span><span·class="p"·data-group-id="6851362581-22">(</span><span·class="p"·data-group-id="6851362581-22">)</span><span·class="p"·da[·...·truncated·by·diffoscope;·len:·23,·SHA:·2c47e25cdc34e3a8a5cf5a729144527f7d3ba11956a6051cd160033e4d564215·...·]-21">)</span><span·class="p">,</span><span·class="w"> |
| 207 | ····</span><span·class="nf">process_flag</span><span·class="p"·data-group-id=" | 207 | ····</span><span·class="nf">process_flag</span><span·class="p"·data-group-id="6851362581-23">(</span><span·class="ss">trap_exit</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">true</span><span·class="p"·data-group-id="6851362581-23">)</span><span·class="p">,</span><span·class="w"> |
| 208 | ····</span><span·class="n">Port</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">open_port</span><span·class="p"·data-group-id=" | 208 | ····</span><span·class="n">Port</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">open_port</span><span·class="p"·data-group-id="6851362581-24">(</span><span·class="p"·data-group-id="6851362581-25">{</span><span·class="nb">spawn</span><span·class="p">,</span><span·class="w">·</span><span·class="n">ExtPrg</span><span·class="p"·data-group-id="6851362581-25">}</span><span·class="p">,</[·...·truncated·by·diffoscope;·len:·389,·SHA:·bdf7869cd1bf05a83751b5a3dda5f6b9d17adc282b317e125e146d3b448b45fc·...·]-24">)</span><span·class="p">,</span><span·class="w"> |
| 209 | ····</span><span·class="nf">loop</span><span·class="p"·data-group-id=" | 209 | ····</span><span·class="nf">loop</span><span·class="p"·data-group-id="6851362581-28">(</span><span·class="n">Port</span><span·class="p"·data-group-id="6851362581-28">)</span><span·class="p">.</span><span·class="w"> |
| 210 | </span><span·class="nf">loop</span><span·class="p"·data-group-id=" | 210 | </span><span·class="nf">loop</span><span·class="p"·data-group-id="6851362581-29">(</span><span·class="n">Port</span><span·class="p"·data-group-id="6851362581-29">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 211 | ····</span><span·class="k">receive</span><span·class="w"> | 211 | ····</span><span·class="k">receive</span><span·class="w"> |
| 212 | » </span><span·class="p"·data-group-id=" | 212 | » </span><span·class="p"·data-group-id="6851362581-30">{</span><span·class="ss">call</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Caller</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Msg</span><span·class="p"·data-group-id="6851362581-30">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 213 | » ····</span><span·class="n">Port</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id=" | 213 | » ····</span><span·class="n">Port</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id="6851362581-31">{</span><span·class="nf">self</span><span·class="p"·data-group-id="6851362581-32">(</span><span·class="p"·data-group-id="6851362581-32">)</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6851362581-33">{</[·...·truncated·by·diffoscope;·len:·343,·SHA:·762489a7fd6d875790e13f9ef10276874755bebab739e847e1f94e7250dda90b·...·]-31">}</span><span·class="p">,</span><span·class="w"> |
| 214 | » ····</span><span·class="k">receive</span><span·class="w"> | 214 | » ····</span><span·class="k">receive</span><span·class="w"> |
| 215 | » » </span><span·class="p"·data-group-id=" | 215 | » » </span><span·class="p"·data-group-id="6851362581-35">{</span><span·class="n">Port</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6851362581-36">{</span><span·class="ss">data</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Data</span><[·...·truncated·by·diffoscope;·len:·94,·SHA:·d99cf1f99a82392e3bbbb0d2e3d1d1b93cc2cb40236a636ec53ea3aaa4d22f70·...·]-35">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 216 | » » ····</span><span·class="n">Caller</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id=" | 216 | » » ····</span><span·class="n">Caller</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id="6851362581-37">{</span><span·class="ss">complex</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">decode</span><span·class="p"·data-group-id="6851362581-38">(</span><span·class="n">Data</span><span·class="p"·data-group-id="6851362581-3[·...·truncated·by·diffoscope;·len:·52,·SHA:·116668ce14bf504ef30f8e403541ee674ae6b506f0cd220c276e9a038595d909·...·]-37">}</span><span·class="w"> |
| 217 | » ····</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> | 217 | » ····</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> |
| 218 | » ····</span><span·class="nf">loop</span><span·class="p"·data-group-id=" | 218 | » ····</span><span·class="nf">loop</span><span·class="p"·data-group-id="6851362581-39">(</span><span·class="n">Port</span><span·class="p"·data-group-id="6851362581-39">)</span><span·class="p">;</span><span·class="w"> |
| 219 | » </span><span·class="ss">stop</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 219 | » </span><span·class="ss">stop</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 220 | » ····</span><span·class="n">Port</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id=" | 220 | » ····</span><span·class="n">Port</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id="6851362581-40">{</span><span·class="nf">self</span><span·class="p"·data-group-id="6851362581-41">(</span><span·class="p"·data-group-id="6851362581-41">)</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">close</span><span·class="p"·data[·...·truncated·by·diffoscope;·len:·21,·SHA:·c3cb13197cf493668be1e8cd4225a0e952620508d9b4daa33ebe2c7861e053e0·...·]-40">}</span><span·class="p">,</span><span·class="w"> |
| 221 | » ····</span><span·class="k">receive</span><span·class="w"> | 221 | » ····</span><span·class="k">receive</span><span·class="w"> |
| 222 | » » </span><span·class="p"·data-group-id=" | 222 | » » </span><span·class="p"·data-group-id="6851362581-42">{</span><span·class="n">Port</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">closed</span><span·class="p"·data-group-id="6851362581-42">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 223 | » » ····</span><span·class="nf">exit</span><span·class="p"·data-group-id=" | 223 | » » ····</span><span·class="nf">exit</span><span·class="p"·data-group-id="6851362581-43">(</span><span·class="ss">normal</span><span·class="p"·data-group-id="6851362581-43">)</span><span·class="w"> |
| 224 | » ····</span><span·class="k">end</span><span·class="p">;</span><span·class="w"> | 224 | » ····</span><span·class="k">end</span><span·class="p">;</span><span·class="w"> |
| 225 | » </span><span·class="p"·data-group-id=" | 225 | » </span><span·class="p"·data-group-id="6851362581-44">{</span><span·class="ss">'EXIT'</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Port</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Reason</span><span·class="p"·data-group-id="6851362581-44">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 226 | » ····</span><span·class="nf">exit</span><span·class="p"·data-group-id=" | 226 | » ····</span><span·class="nf">exit</span><span·class="p"·data-group-id="6851362581-45">(</span><span·class="ss">port_terminated</span><span·class="p"·data-group-id="6851362581-45">)</span><span·class="w"> |
| 227 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> | 227 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> |
| 228 | </span><span·class="nf">encode</span><span·class="p"·data-group-id=" | 228 | </span><span·class="nf">encode</span><span·class="p"·data-group-id="6851362581-46">(</span><span·class="p"·data-group-id="6851362581-47">{</span><span·class="ss">foo</span><span·class="p">,</span><span·class="w">·</span><span·class="n">X</span><span·class="p"·data-group-id="6851362581-47">}</span><span·class="p"·data-group[·...·truncated·by·diffoscope;·len:·296,·SHA:·5965ca2477285cc15d7c5d16728abb17bd765d8763b8072ba58af41faa4626bf·...·]-48">]</span><span·class="p">;</span><span·class="w"> |
| 229 | </span><span·class="nf">encode</span><span·class="p"·data-group-id=" | 229 | </span><span·class="nf">encode</span><span·class="p"·data-group-id="6851362581-49">(</span><span·class="p"·data-group-id="6851362581-50">{</span><span·class="ss">bar</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Y</span><span·class="p"·data-group-id="6851362581-50">}</span><span·class="p"·data-group[·...·truncated·by·diffoscope;·len:·296,·SHA:·7097e8f954e6b3c37eb188d8e2cbd30043f030ee7008bf10d26b73d24182a388·...·]-51">]</span><span·class="p">.</span><span·class="w"> |
| 230 | </span><span·class="nf">decode</span><span·class="p"·data-group-id=" | 230 | </span><span·class="nf">decode</span><span·class="p"·data-group-id="6851362581-52">(</span><span·class="p"·data-group-id="6851362581-53">[</span><span·class="n">Int</span><span·class="p"·data-group-id="6851362581-53">]</span><span·class="p"·data-group-id="6851362581-52">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">Int</span><span·class="p">.</span></code></pre><h2·id="c-program"·class="section-heading"> |
| 231 | ··<a·href="#c-program"·class="hover-link"> | 231 | ··<a·href="#c-program"·class="hover-link"> |
| 232 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 232 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 233 | ··</a> | 233 | ··</a> |
| 234 | ··<span·class="text">C·Program</span> | 234 | ··<span·class="text">C·Program</span> |
| 235 | </h2> | 235 | </h2> |
| 236 | <p>On·the·C·side,·it·is·necessary·to·write·functions·for·receiving·and·sending·data | 236 | <p>On·the·C·side,·it·is·necessary·to·write·functions·for·receiving·and·sending·data |
| 237 | with·2·byte·length·indicators·from/to·Erlang.·By·default,·the·C·program·is·to | 237 | with·2·byte·length·indicators·from/to·Erlang.·By·default,·the·C·program·is·to |
| Offset 333, 25 lines modified | Offset 333, 25 lines modified | ||
| 333 | and·terminates.</p><h2·id="running-the-example"·class="section-heading"> | 333 | and·terminates.</p><h2·id="running-the-example"·class="section-heading"> |
| 334 | ··<a·href="#running-the-example"·class="hover-link"> | 334 | ··<a·href="#running-the-example"·class="hover-link"> |
| 335 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 335 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 336 | ··</a> | 336 | ··</a> |
| 337 | ··<span·class="text">Running·the·Example</span> | 337 | ··<span·class="text">Running·the·Example</span> |
| 338 | </h2> | 338 | </h2> |
| 339 | <p><em>Step·1.</em>·Compile·the·C·code:</p><pre><code·class="text">$·gcc·-o·extprg·complex.c·erl_comm.c·port.c</code></pre><p><em>Step·2.</em>·Start·Erlang·and·compile·the·Erlang·code:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="sc">$·</span><span·class="ss">erl</span><span·class="w"> | 339 | <p><em>Step·1.</em>·Compile·the·C·code:</p><pre><code·class="text">$·gcc·-o·extprg·complex.c·erl_comm.c·port.c</code></pre><p><em>Step·2.</em>·Start·Erlang·and·compile·the·Erlang·code:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="sc">$·</span><span·class="ss">erl</span><span·class="w"> |
| 340 | </span><span·class="n">Erlang</span><span·class="o">/</span><span·class="n">OTP</span><span·class="w">·</span><span·class="mi">26</span><span·class="w">·</span><span·class="p"·data-group-id=" | 340 | </span><span·class="n">Erlang</span><span·class="o">/</span><span·class="n">OTP</span><span·class="w">·</span><span·class="mi">26</span><span·class="w">·</span><span·class="p"·data-group-id="4968816565-1">[</span><span·class="ss">erts</span><span·class="o">-</span><span·class="mf">14.2</span><span·class="p"·data-group-id="4968816565-1">]</span><span·class="w">·</span><span·class="p"·data-group-id="4968816565-2">[</span><span·class="ss">source<[·...·truncated·by·diffoscope;·len:·1283,·SHA:·e13d17f82dbe50a68916724e67d2b619112ef42b9bdbf7528f44ed8e239f928a·...·]-7">]</span><span·class="w"> |
| 341 | </span><span·class="n">Eshell</span><span·class="w">·</span><span·class="n">V14</span><span·class="p">.</span><span·class="mi">2</span><span·class="w">·</span><span·class="p"·data-group-id=" | 341 | </span><span·class="n">Eshell</span><span·class="w">·</span><span·class="n">V14</span><span·class="p">.</span><span·class="mi">2</span><span·class="w">·</span><span·class="p"·data-group-id="4968816565-8">(</span><span·class="ss">press</span><span·class="w">·</span><span·class="n">Ctrl</span><span·class="o">+</span><span·class="n">G</span><span·class="w">·</span><span·class="ss">to</span><span·class="w">·</span><span·class="ss">abort</span><sp[·...·truncated·by·diffoscope;·len:·399,·SHA:·88ee53aa1d1d2bd93e37ba7db2fdb54f350338cbf8dc28281b82757aee99f25c·...·]-8">)</span><span·class="gp·unselectable"> |
| 342 | 1>·</span><span·class="nf">c</span><span·class="p"·data-group-id=" | 342 | 1>·</span><span·class="nf">c</span><span·class="p"·data-group-id="4968816565-10">(</span><span·class="ss">complex1</span><span·class="p"·data-group-id="4968816565-10">)</span><span·class="p">.</span><span·class="w"> |
| 343 | </span><span·class="p"·data-group-id=" | 343 | </span><span·class="p"·data-group-id="4968816565-11">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="ss">complex1</span><span·class="p"·data-group-id="4968816565-11">}</span></code></pre><p><em>Step·3.</em>·Run·the·example:</p><pre><code·class="makeup·erlang"·translate="[·...·truncated·by·diffoscope;·len:·269,·SHA:·d8ff0dad1a3290dab4878354c258b3f4047e4082f1c7b9a3d58731309c1d40ad·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 344 | </span><span·class="o"><</span><span·class="mf">0.34</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="gp·unselectable"> | 344 | </span><span·class="o"><</span><span·class="mf">0.34</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="gp·unselectable"> |
| 345 | 3>·</span><span·class="nc">complex1</span><span·class="p">:</span><span·class="nf">foo</span><span·class="p"·data-group-id=" | 345 | 3>·</span><span·class="nc">complex1</span><span·class="p">:</span><span·class="nf">foo</span><span·class="p"·data-group-id="6731900750-2">(</span><span·class="mi">3</span><span·class="p"·data-group-id="6731900750-2">)</span><span·class="p">.</span><span·class="w"> |
| 346 | </span><span·class="mi">4</span><span·class="gp·unselectable"> | 346 | </span><span·class="mi">4</span><span·class="gp·unselectable"> |
| 347 | 4>·</span><span·class="nc">complex1</span><span·class="p">:</span><span·class="nf">bar</span><span·class="p"·data-group-id=" | 347 | 4>·</span><span·class="nc">complex1</span><span·class="p">:</span><span·class="nf">bar</span><span·class="p"·data-group-id="6731900750-3">(</span><span·class="mi">5</span><span·class="p"·data-group-id="6731900750-3">)</span><span·class="p">.</span><span·class="w"> |
| 348 | </span><span·class="mi">10</span><span·class="gp·unselectable"> | 348 | </span><span·class="mi">10</span><span·class="gp·unselectable"> |
| 349 | 5>·</span><span·class="nc">complex1</span><span·class="p">:</span><span·class="nf">stop</span><span·class="p"·data-group-id=" | 349 | 5>·</span><span·class="nc">complex1</span><span·class="p">:</span><span·class="nf">stop</span><span·class="p"·data-group-id="6731900750-4">(</span><span·class="p"·data-group-id="6731900750-4">)</span><span·class="p">.</span><span·class="w"> |
| 350 | </span><span·class="ss">stop</span></code></pre> | 350 | </span><span·class="ss">stop</span></code></pre> |
| 351 | </div> | 351 | </div> |
| 352 | <div·class="bottom-actions"·id="bottom-actions"> | 352 | <div·class="bottom-actions"·id="bottom-actions"> |
| 353 | ··<div·class="bottom-actions-item"> | 353 | ··<div·class="bottom-actions-item"> |
| 354 | ······<a·href="example.html"·class="bottom-actions-button"·rel="prev"> | 354 | ······<a·href="example.html"·class="bottom-actions-button"·rel="prev"> |
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| 151 | <p>Like·a·port·program,·the·port·communicates·with·an·Erlang·process.·All | 151 | <p>Like·a·port·program,·the·port·communicates·with·an·Erlang·process.·All |
| 152 | communication·goes·through·one·Erlang·process·that·is·the·<em>connected·process</em>·of | 152 | communication·goes·through·one·Erlang·process·that·is·the·<em>connected·process</em>·of |
| 153 | the·port·driver.·Terminating·this·process·closes·the·port·driver.</p><p>Before·the·port·is·created,·the·driver·must·be·loaded.·This·is·done·with·the | 153 | the·port·driver.·Terminating·this·process·closes·the·port·driver.</p><p>Before·the·port·is·created,·the·driver·must·be·loaded.·This·is·done·with·the |
| 154 | function·<a·href="../../lib/kernel-10.3/doc/html/erl_ddll.html#load_driver/2"><code·class="inline">erl_ddll:load_driver/2</code></a>,·with·the·name·of·the·shared·library·as | 154 | function·<a·href="../../lib/kernel-10.3/doc/html/erl_ddll.html#load_driver/2"><code·class="inline">erl_ddll:load_driver/2</code></a>,·with·the·name·of·the·shared·library·as |
| 155 | argument.</p><p>The·port·is·then·created·using·the·BIF·<a·href="../../erts-16.0/doc/html/erlang.html#open_port/2"><code·class="inline">open_port/2</code></a>,·with·the | 155 | argument.</p><p>The·port·is·then·created·using·the·BIF·<a·href="../../erts-16.0/doc/html/erlang.html#open_port/2"><code·class="inline">open_port/2</code></a>,·with·the |
| 156 | tuple·<code·class="inline">{spawn,·DriverName}</code>·as·the·first·argument.·The·string·<code·class="inline">SharedLib</code>·is·the | 156 | tuple·<code·class="inline">{spawn,·DriverName}</code>·as·the·first·argument.·The·string·<code·class="inline">SharedLib</code>·is·the |
| 157 | name·of·the·port·driver.·The·second·argument·is·a·list·of·options,·none·in·this | 157 | name·of·the·port·driver.·The·second·argument·is·a·list·of·options,·none·in·this |
| 158 | case:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 158 | case:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="1939490770-1">(</span><span·class="ss">complex5</span><span·class="p"·data-group-id="1939490770-1">)</span><span·class="p">.</span><span·class="w"> |
| 159 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 159 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="1939490770-2">(</span><span·class="p"·data-group-id="1939490770-3">[</span><span·class="ss">start</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">init</span><span·class="p">/</span><sp[·...·truncated·by·diffoscope;·len:·116,·SHA:·b7bbd555f5f0dd8cd3214acfd0ec467e18639c9d542d84e976d9eae4e5af4423·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 160 | </span><span·class="nf">start</span><span·class="p"·data-group-id=" | 160 | </span><span·class="nf">start</span><span·class="p"·data-group-id="1939490770-4">(</span><span·class="n">SharedLib</span><span·class="p"·data-group-id="1939490770-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 161 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">erl_ddll</span><span·class="p">:</span><span·class="nf">load_driver</span><span·class="p"·data-group-id=" | 161 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">erl_ddll</span><span·class="p">:</span><span·class="nf">load_driver</span><span·class="p"·data-group-id="1939490770-5">(</span><span·class="s">"."</span><span·class="p">,</span><span·class="w">·</span><span·class="n">SharedLib</span><span·class="p"·data-group-id="1939490770-5">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 162 | ········</span><span·class="ss">ok</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">ok</span><span·class="p">;</span><span·class="w"> | 162 | ········</span><span·class="ss">ok</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">ok</span><span·class="p">;</span><span·class="w"> |
| 163 | ········</span><span·class="p"·data-group-id=" | 163 | ········</span><span·class="p"·data-group-id="1939490770-6">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">already_loaded</span><span·class="p"·data-group-id="1939490770-6">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">ok</span><span·class="p">;</span><span·class="w"> |
| 164 | ········</span><span·class="p">_</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="nf">exit</span><span·class="p"·data-group-id=" | 164 | ········</span><span·class="p">_</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="nf">exit</span><span·class="p"·data-group-id="1939490770-7">(</span><span·class="p"·data-group-id="1939490770-8">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">could_not_load_driver</span><span·class="p"·data-group-id="1939490770-8">}</span><span·[·...·truncated·by·diffoscope;·len:·35,·SHA:·968d3974ab2daea33b12102764618e8b493e200efca69fee446b186a658c8c44·...·]-7">)</span><span·class="w"> |
| 165 | ····</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> | 165 | ····</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> |
| 166 | ····</span><span·class="nf">spawn</span><span·class="p"·data-group-id=" | 166 | ····</span><span·class="nf">spawn</span><span·class="p"·data-group-id="1939490770-9">(</span><span·class="o">?</span><span·class="n">MODULE</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">init</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1939490770-10">[</span><sp[·...·truncated·by·diffoscope;·len:·124,·SHA:·b172b1d33ccf3e532034dbbb3167fcc476006d720ebf2dd2a4789e08a65d37fa·...·]-9">)</span><span·class="p">.</span><span·class="w"> |
| 167 | </span><span·class="nf">init</span><span·class="p"·data-group-id=" | 167 | </span><span·class="nf">init</span><span·class="p"·data-group-id="1939490770-11">(</span><span·class="n">SharedLib</span><span·class="p"·data-group-id="1939490770-11">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 168 | ··</span><span·class="nf">register</span><span·class="p"·data-group-id=" | 168 | ··</span><span·class="nf">register</span><span·class="p"·data-group-id="1939490770-12">(</span><span·class="ss">complex</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">self</span><span·class="p"·data-group-id="1939490770-13">(</span><span·class="p"·data-group-id="1939490770-13">)</span><span·class="p"·da[·...·truncated·by·diffoscope;·len:·23,·SHA:·e369ed956feb7cee80b09dfc9bae47905b38bf08774ae151bac10ff8c7eacf71·...·]-12">)</span><span·class="p">,</span><span·class="w"> |
| 169 | ··</span><span·class="n">Port</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">open_port</span><span·class="p"·data-group-id=" | 169 | ··</span><span·class="n">Port</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">open_port</span><span·class="p"·data-group-id="1939490770-14">(</span><span·class="p"·data-group-id="1939490770-15">{</span><span·class="nb">spawn</span><span·class="p">,</span><span·class="w">·</span><span·class="n">SharedLib</span><span·class="p"·data-group-id="1939490770-15">}</span><span·class="p">[·...·truncated·by·diffoscope;·len:·181,·SHA:·4bddfaebcae6c4d0f38398135e9f56e3d8102e4c18ea5d0767bc6c607b1f7f33·...·]-14">)</span><span·class="p">,</span><span·class="w"> |
| 170 | ··</span><span·class="nf">loop</span><span·class="p"·data-group-id=" | 170 | ··</span><span·class="nf">loop</span><span·class="p"·data-group-id="1939490770-17">(</span><span·class="n">Port</span><span·class="p"·data-group-id="1939490770-17">)</span><span·class="p">.</span></code></pre><p>Now·<code·class="inline">complex5:foo/1</code>·and·<code·class="inline">complex5:bar/1</code>·can·be·implemented.·Both·send·a |
| 171 | message·to·the·<code·class="inline">complex</code>·process·and·receive·the·following·reply:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">foo</span><span·class="p"·data-group-id="8 | 171 | message·to·the·<code·class="inline">complex</code>·process·and·receive·the·following·reply:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">foo</span><span·class="p"·data-group-id="8187409129-1">(</span><span·class="n">X</span><span·class="p"·data-group-id="8187409129-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 172 | ····</span><span·class="nf">call_port</span><span·class="p"·data-group-id="8 | 172 | ····</span><span·class="nf">call_port</span><span·class="p"·data-group-id="8187409129-2">(</span><span·class="p"·data-group-id="8187409129-3">{</span><span·class="ss">foo</span><span·class="p">,</span><span·class="w">·</span><span·class="n">X</span><span·class="p"·data-group-id="8187409129-3">}</span><span·class="p"·data-group-id=[·...·truncated·by·diffoscope;·len:·11,·SHA:·ae1ad11badadd5714e9536107a78c987b9e4059af6fe39990d75182db56e521b·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 173 | </span><span·class="nf">bar</span><span·class="p"·data-group-id="8 | 173 | </span><span·class="nf">bar</span><span·class="p"·data-group-id="8187409129-4">(</span><span·class="n">Y</span><span·class="p"·data-group-id="8187409129-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 174 | ····</span><span·class="nf">call_port</span><span·class="p"·data-group-id="8 | 174 | ····</span><span·class="nf">call_port</span><span·class="p"·data-group-id="8187409129-5">(</span><span·class="p"·data-group-id="8187409129-6">{</span><span·class="ss">bar</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Y</span><span·class="p"·data-group-id="8187409129-6">}</span><span·class="p"·data-group-id=[·...·truncated·by·diffoscope;·len:·11,·SHA:·ae1ad11badadd5714e9536107a78c987b9e4059af6fe39990d75182db56e521b·...·]-5">)</span><span·class="p">.</span><span·class="w"> |
| 175 | </span><span·class="nf">call_port</span><span·class="p"·data-group-id="8 | 175 | </span><span·class="nf">call_port</span><span·class="p"·data-group-id="8187409129-7">(</span><span·class="n">Msg</span><span·class="p"·data-group-id="8187409129-7">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 176 | ····</span><span·class="ss">complex</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id="8 | 176 | ····</span><span·class="ss">complex</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id="8187409129-8">{</span><span·class="ss">call</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">self</span><span·class="p"·data-group-id="8187409129-9">(</span><span·class="p"·data-group-id="8187409129-9">)</span><span·class="p">,</span><[·...·truncated·by·diffoscope;·len:·90,·SHA:·b6396bba9b5c01f16acd4059dec2d38beead5955f316e49456ecfefd0ae8df97·...·]-8">}</span><span·class="p">,</span><span·class="w"> |
| 177 | ····</span><span·class="k">receive</span><span·class="w"> | 177 | ····</span><span·class="k">receive</span><span·class="w"> |
| 178 | ········</span><span·class="p"·data-group-id="8 | 178 | ········</span><span·class="p"·data-group-id="8187409129-10">{</span><span·class="ss">complex</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Result</span><span·class="p"·data-group-id="8187409129-10">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 179 | ············</span><span·class="n">Result</span><span·class="w"> | 179 | ············</span><span·class="n">Result</span><span·class="w"> |
| 180 | ····</span><span·class="k">end</span><span·class="p">.</span></code></pre><p>The·<code·class="inline">complex</code>·process·performs·the·following:</p><ul><li>Encodes·the·message·into·a·sequence·of·bytes.</li><li>Sends·it·to·the·port.</li><li>Waits·for·a·reply.</li><li>Decodes·the·reply.</li><li>Sends·it·back·to·the·caller:</li></ul><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">loop</span><span·class="p"·data-group-id=" | 180 | ····</span><span·class="k">end</span><span·class="p">.</span></code></pre><p>The·<code·class="inline">complex</code>·process·performs·the·following:</p><ul><li>Encodes·the·message·into·a·sequence·of·bytes.</li><li>Sends·it·to·the·port.</li><li>Waits·for·a·reply.</li><li>Decodes·the·reply.</li><li>Sends·it·back·to·the·caller:</li></ul><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">loop</span><span·class="p"·data-group-id="7120856297-1">(</span><span·class="n">Port</span><span·class="p"·data-group-id="7120856297-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 181 | ····</span><span·class="k">receive</span><span·class="w"> | 181 | ····</span><span·class="k">receive</span><span·class="w"> |
| 182 | ········</span><span·class="p"·data-group-id=" | 182 | ········</span><span·class="p"·data-group-id="7120856297-2">{</span><span·class="ss">call</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Caller</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Msg</span><span·class="p"·data-group-id="7120856297-2">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 183 | ············</span><span·class="n">Port</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id=" | 183 | ············</span><span·class="n">Port</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id="7120856297-3">{</span><span·class="nf">self</span><span·class="p"·data-group-id="7120856297-4">(</span><span·class="p"·data-group-id="7120856297-4">)</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="7120856297-5">{</span[·...·truncated·by·diffoscope;·len:·336,·SHA:·f7fcbaecba053becfe1b001c698cf7034b62ade4a31d1a353db5234376c718e9·...·]-3">}</span><span·class="p">,</span><span·class="w"> |
| 184 | ············</span><span·class="k">receive</span><span·class="w"> | 184 | ············</span><span·class="k">receive</span><span·class="w"> |
| 185 | ················</span><span·class="p"·data-group-id=" | 185 | ················</span><span·class="p"·data-group-id="7120856297-7">{</span><span·class="n">Port</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="7120856297-8">{</span><span·class="ss">data</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Data</span><sp[·...·truncated·by·diffoscope;·len:·91,·SHA:·10ba5bca075184d334e11f016e9be9404c848f5e5cf1685dd9eaa7255f765e63·...·]-7">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 186 | ····················</span><span·class="n">Caller</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id=" | 186 | ····················</span><span·class="n">Caller</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id="7120856297-9">{</span><span·class="ss">complex</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">decode</span><span·class="p"·data-group-id="7120856297-10">(</span><span·class="n">Data</span><span·class="p"·data-group-id="7120856297-10[·...·truncated·by·diffoscope;·len:·51,·SHA:·742bdc4723477a02692060ce0d54f8357120935c7e22f442b4e0d9df840ceb53·...·]-9">}</span><span·class="w"> |
| 187 | ············</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> | 187 | ············</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> |
| 188 | ············</span><span·class="nf">loop</span><span·class="p"·data-group-id=" | 188 | ············</span><span·class="nf">loop</span><span·class="p"·data-group-id="7120856297-11">(</span><span·class="n">Port</span><span·class="p"·data-group-id="7120856297-11">)</span><span·class="w"> |
| 189 | ····</span><span·class="k">end</span><span·class="p">.</span></code></pre><p>Assuming·that·both·the·arguments·and·the·results·from·the·C·functions·are·less | 189 | ····</span><span·class="k">end</span><span·class="p">.</span></code></pre><p>Assuming·that·both·the·arguments·and·the·results·from·the·C·functions·are·less |
| 190 | than·256,·a·simple·encoding/decoding·scheme·is·employed.·In·this·scheme,·<code·class="inline">foo</code> | 190 | than·256,·a·simple·encoding/decoding·scheme·is·employed.·In·this·scheme,·<code·class="inline">foo</code> |
| 191 | is·represented·by·byte·1,·<code·class="inline">bar</code>·is·represented·by·2,·and·the·argument/result·is | 191 | is·represented·by·byte·1,·<code·class="inline">bar</code>·is·represented·by·2,·and·the·argument/result·is |
| 192 | represented·by·a·single·byte·as·well:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">encode</span><span·class="p"·data-group-id=" | 192 | represented·by·a·single·byte·as·well:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">encode</span><span·class="p"·data-group-id="0039999192-1">(</span><span·class="p"·data-group-id="0039999192-2">{</span><span·class="ss">foo</span><span·class="p">,</span><span·class="w">·</span><span·class="n">X</span><span·class="p"·data-group-id="0039999192-2">}</span><span·class="p"·data-group-id[·...·truncated·by·diffoscope;·len:·291,·SHA:·4d6a3b3c945d83f72890713312e2a045a7992dc94e08c2956ab225775abf5674·...·]-3">]</span><span·class="p">;</span><span·class="w"> |
| 193 | </span><span·class="nf">encode</span><span·class="p"·data-group-id=" | 193 | </span><span·class="nf">encode</span><span·class="p"·data-group-id="0039999192-4">(</span><span·class="p"·data-group-id="0039999192-5">{</span><span·class="ss">bar</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Y</span><span·class="p"·data-group-id="0039999192-5">}</span><span·class="p"·data-group-id[·...·truncated·by·diffoscope;·len:·291,·SHA:·ef68bbfd4dcf713bdaef4c4e54f758b05476a8feb756e0af7f1731c09dbd99da·...·]-6">]</span><span·class="p">.</span><span·class="w"> |
| 194 | </span><span·class="nf">decode</span><span·class="p"·data-group-id=" | 194 | </span><span·class="nf">decode</span><span·class="p"·data-group-id="0039999192-7">(</span><span·class="p"·data-group-id="0039999192-8">[</span><span·class="n">Int</span><span·class="p"·data-group-id="0039999192-8">]</span><span·class="p"·data-group-id="0039999192-7">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">Int</span><span·class="p">.</span></code></pre><p>The·resulting·Erlang·program,·including·functions·for·stopping·the·port·and |
| 195 | detecting·port·failures,·is·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w"> | 195 | detecting·port·failures,·is·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w"> |
| 196 | </span><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 196 | </span><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="7592649897-1">(</span><span·class="ss">complex5</span><span·class="p"·data-group-id="7592649897-1">)</span><span·class="p">.</span><span·class="w"> |
| 197 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 197 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="7592649897-2">(</span><span·class="p"·data-group-id="7592649897-3">[</span><span·class="ss">start</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">stop</span><span·class="p">/</span><sp[·...·truncated·by·diffoscope;·len:·241,·SHA:·ed772f568a4f8545a21789f2171ce45a423c0716e146e531c6eec1f1be65c983·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 198 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 198 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="7592649897-4">(</span><span·class="p"·data-group-id="7592649897-5">[</span><span·class="ss">foo</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">bar</span><span·class="p">/</span><span·[·...·truncated·by·diffoscope;·len:·113,·SHA:·55e59ca73269e0f5a2472be2d270e0ea7bb5156ae7d809144e00954b8012a136·...·]-4">)</span><span·class="p">.</span><span·class="w"> |
| 199 | </span><span·class="nf">start</span><span·class="p"·data-group-id=" | 199 | </span><span·class="nf">start</span><span·class="p"·data-group-id="7592649897-6">(</span><span·class="n">SharedLib</span><span·class="p"·data-group-id="7592649897-6">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 200 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">erl_ddll</span><span·class="p">:</span><span·class="nf">load_driver</span><span·class="p"·data-group-id=" | 200 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">erl_ddll</span><span·class="p">:</span><span·class="nf">load_driver</span><span·class="p"·data-group-id="7592649897-7">(</span><span·class="s">"."</span><span·class="p">,</span><span·class="w">·</span><span·class="n">SharedLib</span><span·class="p"·data-group-id="7592649897-7">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 201 | » </span><span·class="ss">ok</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">ok</span><span·class="p">;</span><span·class="w"> | 201 | » </span><span·class="ss">ok</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">ok</span><span·class="p">;</span><span·class="w"> |
| 202 | » </span><span·class="p"·data-group-id=" | 202 | » </span><span·class="p"·data-group-id="7592649897-8">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">already_loaded</span><span·class="p"·data-group-id="7592649897-8">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">ok</span><span·class="p">;</span><span·class="w"> |
| 203 | » </span><span·class="p">_</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="nf">exit</span><span·class="p"·data-group-id=" | 203 | » </span><span·class="p">_</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="nf">exit</span><span·class="p"·data-group-id="7592649897-9">(</span><span·class="p"·data-group-id="7592649897-10">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">could_not_load_driver</span><span·class="p"·data-group-id="7592649897-10">}</span><spa[·...·truncated·by·diffoscope;·len:·37,·SHA:·fdae3adf3a5500c1cac7227cfd60c654641910308d31f929c0c414162a5d84ff·...·]-9">)</span><span·class="w"> |
| 204 | ····</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> | 204 | ····</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> |
| 205 | ····</span><span·class="nf">spawn</span><span·class="p"·data-group-id=" | 205 | ····</span><span·class="nf">spawn</span><span·class="p"·data-group-id="7592649897-11">(</span><span·class="o">?</span><span·class="n">MODULE</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">init</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="7592649897-12">[</span><s[·...·truncated·by·diffoscope;·len:·125,·SHA:·5c75ed088a670f583c4c9f382de5d9bba3f51720f764781c9789ca606a491cf0·...·]-11">)</span><span·class="p">.</span><span·class="w"> |
| 206 | </span><span·class="nf">init</span><span·class="p"·data-group-id=" | 206 | </span><span·class="nf">init</span><span·class="p"·data-group-id="7592649897-13">(</span><span·class="n">SharedLib</span><span·class="p"·data-group-id="7592649897-13">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 207 | ····</span><span·class="nf">register</span><span·class="p"·data-group-id=" | 207 | ····</span><span·class="nf">register</span><span·class="p"·data-group-id="7592649897-14">(</span><span·class="ss">complex</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">self</span><span·class="p"·data-group-id="7592649897-15">(</span><span·class="p"·data-group-id="7592649897-15">)</span><span·class="p"·da[·...·truncated·by·diffoscope;·len:·23,·SHA:·a899b5c4ee5926bbd046533ef37e3699d1b218e5d0c0c8caf03e3e0708a054dd·...·]-14">)</span><span·class="p">,</span><span·class="w"> |
| 208 | ····</span><span·class="n">Port</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">open_port</span><span·class="p"·data-group-id=" | 208 | ····</span><span·class="n">Port</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">open_port</span><span·class="p"·data-group-id="7592649897-16">(</span><span·class="p"·data-group-id="7592649897-17">{</span><span·class="nb">spawn</span><span·class="p">,</span><span·class="w">·</span><span·class="n">SharedLib</span><span·class="p"·data-group-id="7592649897-17">}</span><span·class="p">[·...·truncated·by·diffoscope;·len:·181,·SHA:·a472fac6e382d2c898f3d51a8222de10a0e2259a6c300eed6d836d30f0637be1·...·]-16">)</span><span·class="p">,</span><span·class="w"> |
| 209 | ····</span><span·class="nf">loop</span><span·class="p"·data-group-id=" | 209 | ····</span><span·class="nf">loop</span><span·class="p"·data-group-id="7592649897-19">(</span><span·class="n">Port</span><span·class="p"·data-group-id="7592649897-19">)</span><span·class="p">.</span><span·class="w"> |
| 210 | </span><span·class="nf">stop</span><span·class="p"·data-group-id=" | 210 | </span><span·class="nf">stop</span><span·class="p"·data-group-id="7592649897-20">(</span><span·class="p"·data-group-id="7592649897-20">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 211 | ····</span><span·class="ss">complex</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="ss">stop</span><span·class="p">.</span><span·class="w"> | 211 | ····</span><span·class="ss">complex</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="ss">stop</span><span·class="p">.</span><span·class="w"> |
| 212 | </span><span·class="nf">foo</span><span·class="p"·data-group-id=" | 212 | </span><span·class="nf">foo</span><span·class="p"·data-group-id="7592649897-21">(</span><span·class="n">X</span><span·class="p"·data-group-id="7592649897-21">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 213 | ····</span><span·class="nf">call_port</span><span·class="p"·data-group-id=" | 213 | ····</span><span·class="nf">call_port</span><span·class="p"·data-group-id="7592649897-22">(</span><span·class="p"·data-group-id="7592649897-23">{</span><span·class="ss">foo</span><span·class="p">,</span><span·class="w">·</span><span·class="n">X</span><span·class="p"·data-group-id="7592649897-23">}</span><span·class="p"·data-group[·...·truncated·by·diffoscope;·len:·15,·SHA:·460d52124089fc91d45832ed2d82bd88e316d9c62d7fd130661167e5cbb1ca54·...·]-22">)</span><span·class="p">.</span><span·class="w"> |
| 214 | </span><span·class="nf">bar</span><span·class="p"·data-group-id=" | 214 | </span><span·class="nf">bar</span><span·class="p"·data-group-id="7592649897-24">(</span><span·class="n">Y</span><span·class="p"·data-group-id="7592649897-24">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 215 | ····</span><span·class="nf">call_port</span><span·class="p"·data-group-id=" | 215 | ····</span><span·class="nf">call_port</span><span·class="p"·data-group-id="7592649897-25">(</span><span·class="p"·data-group-id="7592649897-26">{</span><span·class="ss">bar</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Y</span><span·class="p"·data-group-id="7592649897-26">}</span><span·class="p"·data-group[·...·truncated·by·diffoscope;·len:·15,·SHA:·460d52124089fc91d45832ed2d82bd88e316d9c62d7fd130661167e5cbb1ca54·...·]-25">)</span><span·class="p">.</span><span·class="w"> |
| 216 | </span><span·class="nf">call_port</span><span·class="p"·data-group-id=" | 216 | </span><span·class="nf">call_port</span><span·class="p"·data-group-id="7592649897-27">(</span><span·class="n">Msg</span><span·class="p"·data-group-id="7592649897-27">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 217 | ····</span><span·class="ss">complex</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id=" | 217 | ····</span><span·class="ss">complex</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id="7592649897-28">{</span><span·class="ss">call</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">self</span><span·class="p"·data-group-id="7592649897-29">(</span><span·class="p"·data-group-id="7592649897-29">)</span><span·class="p">,</sp[·...·truncated·by·diffoscope;·len:·94,·SHA:·4e53eb4083ecd270828d4365d157e7e68f9ff24aa5746d116b160304f9719689·...·]-28">}</span><span·class="p">,</span><span·class="w"> |
| 218 | ····</span><span·class="k">receive</span><span·class="w"> | 218 | ····</span><span·class="k">receive</span><span·class="w"> |
| 219 | » </span><span·class="p"·data-group-id=" | 219 | » </span><span·class="p"·data-group-id="7592649897-30">{</span><span·class="ss">complex</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Result</span><span·class="p"·data-group-id="7592649897-30">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 220 | » ····</span><span·class="n">Result</span><span·class="w"> | 220 | » ····</span><span·class="n">Result</span><span·class="w"> |
| 221 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> | 221 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> |
| 222 | </span><span·class="nf">loop</span><span·class="p"·data-group-id=" | 222 | </span><span·class="nf">loop</span><span·class="p"·data-group-id="7592649897-31">(</span><span·class="n">Port</span><span·class="p"·data-group-id="7592649897-31">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 223 | ····</span><span·class="k">receive</span><span·class="w"> | 223 | ····</span><span·class="k">receive</span><span·class="w"> |
| 224 | » </span><span·class="p"·data-group-id=" | 224 | » </span><span·class="p"·data-group-id="7592649897-32">{</span><span·class="ss">call</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Caller</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Msg</span><span·class="p"·data-group-id="7592649897-32">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 225 | » ····</span><span·class="n">Port</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id=" | 225 | » ····</span><span·class="n">Port</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id="7592649897-33">{</span><span·class="nf">self</span><span·class="p"·data-group-id="7592649897-34">(</span><span·class="p"·data-group-id="7592649897-34">)</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="7592649897-35">{</[·...·truncated·by·diffoscope;·len:·343,·SHA:·46972cd63d3f4dd687bd16f97c77616b50ca428f59fee790802434a85bfda6f4·...·]-33">}</span><span·class="p">,</span><span·class="w"> |
| 226 | » ····</span><span·class="k">receive</span><span·class="w"> | 226 | » ····</span><span·class="k">receive</span><span·class="w"> |
| 227 | » » </span><span·class="p"·data-group-id=" | 227 | » » </span><span·class="p"·data-group-id="7592649897-37">{</span><span·class="n">Port</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="7592649897-38">{</span><span·class="ss">data</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Data</span><[·...·truncated·by·diffoscope;·len:·94,·SHA:·dde1a6f304666f8722c6c7551a5c9f9ddab52a297169e1356f693bde8df4c2e5·...·]-37">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 228 | » » ····</span><span·class="n">Caller</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id=" | 228 | » » ····</span><span·class="n">Caller</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id="7592649897-39">{</span><span·class="ss">complex</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">decode</span><span·class="p"·data-group-id="7592649897-40">(</span><span·class="n">Data</span><span·class="p"·data-group-id="7592649897-4[·...·truncated·by·diffoscope;·len:·52,·SHA:·ce77ceb5776c799ea055c75acc69cf327572de337ccdb596de83b6cc5d261cf4·...·]-39">}</span><span·class="w"> |
| 229 | » ····</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> | 229 | » ····</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> |
| 230 | » ····</span><span·class="nf">loop</span><span·class="p"·data-group-id=" | 230 | » ····</span><span·class="nf">loop</span><span·class="p"·data-group-id="7592649897-41">(</span><span·class="n">Port</span><span·class="p"·data-group-id="7592649897-41">)</span><span·class="p">;</span><span·class="w"> |
| 231 | » </span><span·class="ss">stop</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 231 | » </span><span·class="ss">stop</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 232 | » ····</span><span·class="n">Port</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id=" | 232 | » ····</span><span·class="n">Port</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id="7592649897-42">{</span><span·class="nf">self</span><span·class="p"·data-group-id="7592649897-43">(</span><span·class="p"·data-group-id="7592649897-43">)</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">close</span><span·class="p"·data[·...·truncated·by·diffoscope;·len:·21,·SHA:·a8320166f0c331f7ffbff35c6cf7d9733f3c9210248b70baa5afbc2c7d355cae·...·]-42">}</span><span·class="p">,</span><span·class="w"> |
| 233 | » ····</span><span·class="k">receive</span><span·class="w"> | 233 | » ····</span><span·class="k">receive</span><span·class="w"> |
| 234 | » » </span><span·class="p"·data-group-id=" | 234 | » » </span><span·class="p"·data-group-id="7592649897-44">{</span><span·class="n">Port</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">closed</span><span·class="p"·data-group-id="7592649897-44">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 235 | » » ····</span><span·class="nf">exit</span><span·class="p"·data-group-id=" | 235 | » » ····</span><span·class="nf">exit</span><span·class="p"·data-group-id="7592649897-45">(</span><span·class="ss">normal</span><span·class="p"·data-group-id="7592649897-45">)</span><span·class="w"> |
| 236 | » ····</span><span·class="k">end</span><span·class="p">;</span><span·class="w"> | 236 | » ····</span><span·class="k">end</span><span·class="p">;</span><span·class="w"> |
| 237 | » </span><span·class="p"·data-group-id=" | 237 | » </span><span·class="p"·data-group-id="7592649897-46">{</span><span·class="ss">'EXIT'</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Port</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Reason</span><span·class="p"·data-group-id="7592649897-46">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 238 | » ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 238 | » ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="7592649897-47">(</span><span·class="s">"</span><span·class="si">~p</span><span·class="s">·</span><span·class="si">~n</span><span·class="s">"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="7592649897-48">[</sp[·...·truncated·by·diffoscope;·len:·127,·SHA:·b71c6b35007283cf4fdca1fb289e124483c777bc5dc17687fda15aaa87043bb2·...·]-47">)</span><span·class="p">,</span><span·class="w"> |
| 239 | » ····</span><span·class="nf">exit</span><span·class="p"·data-group-id=" | 239 | » ····</span><span·class="nf">exit</span><span·class="p"·data-group-id="7592649897-49">(</span><span·class="ss">port_terminated</span><span·class="p"·data-group-id="7592649897-49">)</span><span·class="w"> |
| 240 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> | 240 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> |
| 241 | </span><span·class="nf">encode</span><span·class="p"·data-group-id=" | 241 | </span><span·class="nf">encode</span><span·class="p"·data-group-id="7592649897-50">(</span><span·class="p"·data-group-id="7592649897-51">{</span><span·class="ss">foo</span><span·class="p">,</span><span·class="w">·</span><span·class="n">X</span><span·class="p"·data-group-id="7592649897-51">}</span><span·class="p"·data-group[·...·truncated·by·diffoscope;·len:·296,·SHA:·1dd673787bf472ab8878aa2fc004198cb5bd11f3a4903cc9525eeca49c6e8cd2·...·]-52">]</span><span·class="p">;</span><span·class="w"> |
| 242 | </span><span·class="nf">encode</span><span·class="p"·data-group-id=" | 242 | </span><span·class="nf">encode</span><span·class="p"·data-group-id="7592649897-53">(</span><span·class="p"·data-group-id="7592649897-54">{</span><span·class="ss">bar</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Y</span><span·class="p"·data-group-id="7592649897-54">}</span><span·class="p"·data-group[·...·truncated·by·diffoscope;·len:·296,·SHA:·91a524b2b5f33437e5929e5c9afd16c1d700ebe47abcdb1ed668acdad774356b·...·]-55">]</span><span·class="p">.</span><span·class="w"> |
| 243 | </span><span·class="nf">decode</span><span·class="p"·data-group-id=" | 243 | </span><span·class="nf">decode</span><span·class="p"·data-group-id="7592649897-56">(</span><span·class="p"·data-group-id="7592649897-57">[</span><span·class="n">Int</span><span·class="p"·data-group-id="7592649897-57">]</span><span·class="p"·data-group-id="7592649897-56">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">Int</span><span·class="p">.</span></code></pre><h2·id="c-driver"·class="section-heading"> |
| 244 | ··<a·href="#c-driver"·class="hover-link"> | 244 | ··<a·href="#c-driver"·class="hover-link"> |
| 245 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 245 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 246 | ··</a> | 246 | ··</a> |
| 247 | ··<span·class="text">C·Driver</span> | 247 | ··<span·class="text">C·Driver</span> |
| 248 | </h2> | 248 | </h2> |
| 249 | <p>The·C·driver·is·a·module·that·is·compiled·and·linked·into·a·shared·library.·It | 249 | <p>The·C·driver·is·a·module·that·is·compiled·and·linked·into·a·shared·library.·It |
| 250 | uses·a·driver·structure·and·includes·the·header·file·<code·class="inline">erl_driver.h</code>.</p><p>The·driver·structure·is·filled·with·the·driver·name·and·function·pointers.·It·is | 250 | uses·a·driver·structure·and·includes·the·header·file·<code·class="inline">erl_driver.h</code>.</p><p>The·driver·structure·is·filled·with·the·driver·name·and·function·pointers.·It·is |
| Offset 347, 25 lines modified | Offset 347, 25 lines modified | ||
| 347 | ··<a·href="#running-the-example"·class="hover-link"> | 347 | ··<a·href="#running-the-example"·class="hover-link"> |
| 348 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 348 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 349 | ··</a> | 349 | ··</a> |
| 350 | ··<span·class="text">Running·the·Example</span> | 350 | ··<span·class="text">Running·the·Example</span> |
| 351 | </h2> | 351 | </h2> |
| 352 | <p><em>Step·1.</em>·Compile·the·C·code:</p><pre><code·class="text">unix>·gcc·-o·example_drv.so·-fpic·-shared·complex.c·port_driver.c | 352 | <p><em>Step·1.</em>·Compile·the·C·code:</p><pre><code·class="text">unix>·gcc·-o·example_drv.so·-fpic·-shared·complex.c·port_driver.c |
| 353 | windows>·cl·-LD·-MD·-Fe·example_drv.dll·complex.c·port_driver.c</code></pre><p><em>Step·2.</em>·Start·Erlang·and·compile·the·Erlang·code:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="ss">erl</span><span·class="w"> | 353 | windows>·cl·-LD·-MD·-Fe·example_drv.dll·complex.c·port_driver.c</code></pre><p><em>Step·2.</em>·Start·Erlang·and·compile·the·Erlang·code:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="ss">erl</span><span·class="w"> |
| 354 | </span><span·class="n">Erlang</span><span·class="o">/</span><span·class="n">OTP</span><span·class="w">·</span><span·class="mi">26</span><span·class="w">·</span><span·class="p"·data-group-id=" | 354 | </span><span·class="n">Erlang</span><span·class="o">/</span><span·class="n">OTP</span><span·class="w">·</span><span·class="mi">26</span><span·class="w">·</span><span·class="p"·data-group-id="8177874775-1">[</span><span·class="ss">erts</span><span·class="o">-</span><span·class="mf">14.2</span><span·class="p"·data-group-id="8177874775-1">]</span><span·class="w">·</span><span·class="p"·data-group-id="8177874775-2">[</span><span·class="ss">source<[·...·truncated·by·diffoscope;·len:·1281,·SHA:·a0fd87c41f6e974e88baec614672d2ef9ab32db04e95ebe058954cc94b066d9f·...·]75-7">]</span><span·class="w"> |
| 355 | </span><span·class="n">Eshell</span><span·class="w">·</span><span·class="n">V14</span><span·class="p">.</span><span·class="mi">2</span><span·class="w">·</span><span·class="p"·data-group-id=" | 355 | </span><span·class="n">Eshell</span><span·class="w">·</span><span·class="n">V14</span><span·class="p">.</span><span·class="mi">2</span><span·class="w">·</span><span·class="p"·data-group-id="8177874775-8">(</span><span·class="ss">press</span><span·class="w">·</span><span·class="n">Ctrl</span><span·class="o">+</span><span·class="n">G</span><span·class="w">·</span><span·class="ss">to</span><span·class="w">·</span><span·class="ss">abort</span><sp[·...·truncated·by·diffoscope;·len:·397,·SHA:·8ef650dd9305017436253c7551939dd0871bea56387fd4ad1f273d26892e1c4b·...·]75-8">)</span><span·class="gp·unselectable"> |
| 356 | 1>·</span><span·class="nf">c</span><span·class="p"·data-group-id=" | 356 | 1>·</span><span·class="nf">c</span><span·class="p"·data-group-id="8177874775-10">(</span><span·class="ss">complex5</span><span·class="p"·data-group-id="8177874775-10">)</span><span·class="p">.</span><span·class="w"> |
| 357 | </span><span·class="p"·data-group-id=" | 357 | </span><span·class="p"·data-group-id="8177874775-11">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="ss">complex5</span><span·class="p"·data-group-id="8177874775-11">}</span></code></pre><p><em>Step·3.</em>·Run·the·example:</p><pre><code·class="makeup·erlang"·translate="[·...·truncated·by·diffoscope;·len:·272,·SHA:·6a73f8fec10583064ba42c01dc666f92bb943b2e4376ab33c008c647f85dee02·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 358 | </span><span·class="o"><</span><span·class="mf">0.34</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="gp·unselectable"> | 358 | </span><span·class="o"><</span><span·class="mf">0.34</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="gp·unselectable"> |
| 359 | 3>·</span><span·class="nc">complex5</span><span·class="p">:</span><span·class="nf">foo</span><span·class="p"·data-group-id=" | 359 | 3>·</span><span·class="nc">complex5</span><span·class="p">:</span><span·class="nf">foo</span><span·class="p"·data-group-id="8842408960-2">(</span><span·class="mi">3</span><span·class="p"·data-group-id="8842408960-2">)</span><span·class="p">.</span><span·class="w"> |
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| 186 | ······<p·class="built-using"> | 186 | ······<p·class="built-using"> |
| 187 | ········Built·using | 187 | ········Built·using |
| 188 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 188 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 189 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 189 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 190 | ······</p> | 190 | ······</p> |
| 191 | <p>Copyright·©·1996-202 | 191 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 192 | ····</footer> | 192 | ····</footer> |
| 193 | ··</div> | 193 | ··</div> |
| 194 | </main> | 194 | </main> |
| 195 | </div> | 195 | </div> |
| 196 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 196 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 197 | ··<script> | 197 | ··<script> |
| 198 | ··let·initialized·=·false; | 198 | ··let·initialized·=·false; |
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| 164 | ······<p·class="built-using"> | 164 | ······<p·class="built-using"> |
| 165 | ········Built·using | 165 | ········Built·using |
| 166 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 166 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 167 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 167 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 168 | ······</p> | 168 | ······</p> |
| 169 | <p>Copyright·©·1996-202 | 169 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 170 | ····</footer> | 170 | ····</footer> |
| 171 | ··</div> | 171 | ··</div> |
| 172 | </main> | 172 | </main> |
| 173 | </div> | 173 | </div> |
| 174 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 174 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 175 | ··<script> | 175 | ··<script> |
| 176 | ··let·initialized·=·false; | 176 | ··let·initialized·=·false; |
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| 122 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 122 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 123 | ··</a> | 123 | ··</a> |
| 124 | ··<span·class="text">Compilation</span> | 124 | ··<span·class="text">Compilation</span> |
| 125 | </h2> | 125 | </h2> |
| 126 | <p>Erlang·programs·must·be·<em>compiled</em>·to·object·code.·The·compiler·can·generate·a | 126 | <p>Erlang·programs·must·be·<em>compiled</em>·to·object·code.·The·compiler·can·generate·a |
| 127 | new·file·that·contains·the·object·code.·The·current·abstract·machine,·which·runs | 127 | new·file·that·contains·the·object·code.·The·current·abstract·machine,·which·runs |
| 128 | the·object·code,·is·called·BEAM,·therefore·the·object·files·get·the·suffix | 128 | the·object·code,·is·called·BEAM,·therefore·the·object·files·get·the·suffix |
| 129 | <code·class="inline">.beam</code>.·The·compiler·can·also·generate·a·binary·which·can·be·loaded·directly.</p><p>The·compiler·is·located·in·the·module·<a·href="../../lib/compiler-9.0/doc/html/compile.html"><code·class="inline">compile</code></a>·in·Compiler.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">compile</span><span·class="p">:</span><span·class="nf">file</span><span·class="p"·data-group-id="9 | 129 | <code·class="inline">.beam</code>.·The·compiler·can·also·generate·a·binary·which·can·be·loaded·directly.</p><p>The·compiler·is·located·in·the·module·<a·href="../../lib/compiler-9.0/doc/html/compile.html"><code·class="inline">compile</code></a>·in·Compiler.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">compile</span><span·class="p">:</span><span·class="nf">file</span><span·class="p"·data-group-id="9145929353-1">(</span><span·class="n">Module</span><span·class="p"·data-group-id="9145929353-1">)</span><span·class="w"> |
| 130 | </span><span·class="nc">compile</span><span·class="p">:</span><span·class="nf">file</span><span·class="p"·data-group-id="9 | 130 | </span><span·class="nc">compile</span><span·class="p">:</span><span·class="nf">file</span><span·class="p"·data-group-id="9145929353-2">(</span><span·class="n">Module</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Options</span><span·class="p"·data-group-id="9145929353-2">)</span></code></pre><p>The·Erlang·shell·understands·the·command·<code·class="inline">c(Module)</code>,·which·both·compiles·and |
| 131 | loads·<code·class="inline">Module</code>.</p><p>There·is·also·a·module·<code·class="inline">make</code>,·which·provides·a·set·of·functions·similar·to·the | 131 | loads·<code·class="inline">Module</code>.</p><p>There·is·also·a·module·<code·class="inline">make</code>,·which·provides·a·set·of·functions·similar·to·the |
| 132 | UNIX·type·Make·functions,·see·module·<a·href="../../lib/tools-4.1.2/doc/html/make.html"><code·class="inline">make</code></a>·in·Tools.</p><p>The·compiler·can·also·be·accessed·from·the·OS·prompt·using·the | 132 | UNIX·type·Make·functions,·see·module·<a·href="../../lib/tools-4.1.2/doc/html/make.html"><code·class="inline">make</code></a>·in·Tools.</p><p>The·compiler·can·also·be·accessed·from·the·OS·prompt·using·the |
| 133 | <a·href="../../erts-16.0/doc/html/erl_cmd.html">erl</a>·executable·in·ERTS.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%·erl·-compile·Module1...ModuleN</span><span·class="w"> | 133 | <a·href="../../erts-16.0/doc/html/erl_cmd.html">erl</a>·executable·in·ERTS.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%·erl·-compile·Module1...ModuleN</span><span·class="w"> |
| 134 | </span><span·class="c1">%·erl·-make</span></code></pre><p>The·<code·class="inline">erlc</code>·program·provides·way·to·compile·modules·from·the·OS | 134 | </span><span·class="c1">%·erl·-make</span></code></pre><p>The·<code·class="inline">erlc</code>·program·provides·way·to·compile·modules·from·the·OS |
| 135 | shell,·see·the·<a·href="../../erts-16.0/doc/html/erlc_cmd.html">erlc</a>·executable·in·ERTS.·It | 135 | shell,·see·the·<a·href="../../erts-16.0/doc/html/erlc_cmd.html">erlc</a>·executable·in·ERTS.·It |
| 136 | understands·a·number·of·flags·that·can·be·used·to·define·macros,·add·search | 136 | understands·a·number·of·flags·that·can·be·used·to·define·macros,·add·search |
| 137 | paths·for·include·files,·and·more.</p><pre><code·class="text">%·erlc·<flags>·File1.erl...FileN.erl</code></pre><p><a·href=""·id="loading"></a></p><h2·id="code-loading"·class="section-heading"> | 137 | paths·for·include·files,·and·more.</p><pre><code·class="text">%·erlc·<flags>·File1.erl...FileN.erl</code></pre><p><a·href=""·id="loading"></a></p><h2·id="code-loading"·class="section-heading"> |
| Offset 156, 54 lines modified | Offset 156, 54 lines modified | ||
| 156 | When·a·module·is·loaded·into·the·system·for·the·first·time,·the·code·becomes | 156 | When·a·module·is·loaded·into·the·system·for·the·first·time,·the·code·becomes |
| 157 | 'current'.·If·then·a·new·instance·of·the·module·is·loaded,·the·code·of·the | 157 | 'current'.·If·then·a·new·instance·of·the·module·is·loaded,·the·code·of·the |
| 158 | previous·instance·becomes·'old'·and·the·new·instance·becomes·'current'.</p><p>Both·old·and·current·code·is·valid,·and·can·be·evaluated·concurrently.·Fully | 158 | previous·instance·becomes·'old'·and·the·new·instance·becomes·'current'.</p><p>Both·old·and·current·code·is·valid,·and·can·be·evaluated·concurrently.·Fully |
| 159 | qualified·function·calls·always·refer·to·current·code.·Old·code·can·still·be | 159 | qualified·function·calls·always·refer·to·current·code.·Old·code·can·still·be |
| 160 | evaluated·because·of·processes·lingering·in·the·old·code.</p><p>If·a·third·instance·of·the·module·is·loaded,·the·code·server·removes·(purges) | 160 | evaluated·because·of·processes·lingering·in·the·old·code.</p><p>If·a·third·instance·of·the·module·is·loaded,·the·code·server·removes·(purges) |
| 161 | the·old·code·and·any·processes·lingering·in·it·is·terminated.·Then·the·third | 161 | the·old·code·and·any·processes·lingering·in·it·is·terminated.·Then·the·third |
| 162 | instance·becomes·'current'·and·the·previously·current·code·becomes·'old'.</p><p>To·change·from·old·code·to·current·code,·a·process·must·make·a·fully·qualified | 162 | instance·becomes·'current'·and·the·previously·current·code·becomes·'old'.</p><p>To·change·from·old·code·to·current·code,·a·process·must·make·a·fully·qualified |
| 163 | function·call.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="5483674580-1">(</span><span·class="ss">m</span><span·class="p"·data-group-id="5483674580-1">)</span><span·class="p">.</span><span·class="w"> | ||
| 164 | </ | 163 | function·call.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="6633787367-1">(</span><span·class="ss">m</span><span·class="p"·data-group-id="663[·...·truncated·by·diffoscope;·len:·9,·SHA:·9e73f39e714eed2528b7560c5cb3b5760949fb54dd3a63cdbd8df82df9632f43·...·]">)</span><span·class="p">.</span><span·class="w"> |
| 164 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="6633787367-2">(</span><span·class="p"·data-group-id="6633787367-3">[</span><span·class="ss">loop</span><span·class="p">/</span><span·class="mi">0</span><span·class="p"·data-group-id="6633787367-3">]</span><span·class="p"·data-group-id="6633787367-2">)</span><span·class="p">.</span><span·class="w"> | ||
| 165 | </span><span·class="nf">loop</span><span·class="p"·data-group-id=" | 165 | </span><span·class="nf">loop</span><span·class="p"·data-group-id="6633787367-4">(</span><span·class="p"·data-group-id="6633787367-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 166 | ····</span><span·class="k">receive</span><span·class="w"> | 166 | ····</span><span·class="k">receive</span><span·class="w"> |
| 167 | ········</span><span·class="ss">code_switch</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 167 | ········</span><span·class="ss">code_switch</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 168 | ············</span><span·class="nc">m</span><span·class="p">:</span><span·class="nf">loop</span><span·class="p"·data-group-id=" | 168 | ············</span><span·class="nc">m</span><span·class="p">:</span><span·class="nf">loop</span><span·class="p"·data-group-id="6633787367-5">(</span><span·class="p"·data-group-id="6633787367-5">)</span><span·class="p">;</span><span·class="w"> |
| 169 | ········</span><span·class="n">Msg</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 169 | ········</span><span·class="n">Msg</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 170 | ············</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> | 170 | ············</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> |
| 171 | ············</span><span·class="nf">loop</span><span·class="p"·data-group-id=" | 171 | ············</span><span·class="nf">loop</span><span·class="p"·data-group-id="6633787367-6">(</span><span·class="p"·data-group-id="6633787367-6">)</span><span·class="w"> |
| 172 | ····</span><span·class="k">end</span><span·class="p">.</span></code></pre><p>To·make·the·process·change·code,·send·the·message·<code·class="inline">code_switch</code>·to·it.·The | 172 | ····</span><span·class="k">end</span><span·class="p">.</span></code></pre><p>To·make·the·process·change·code,·send·the·message·<code·class="inline">code_switch</code>·to·it.·The |
| 173 | process·then·makes·a·fully·qualified·call·to·<code·class="inline">m:loop()</code>·and·changes·to·current | 173 | process·then·makes·a·fully·qualified·call·to·<code·class="inline">m:loop()</code>·and·changes·to·current |
| 174 | code.·Notice·that·<code·class="inline">m:loop/0</code>·must·be·exported.</p><p>For·code·replacement·of·funs·to·work,·use·the·syntax | 174 | code.·Notice·that·<code·class="inline">m:loop/0</code>·must·be·exported.</p><p>For·code·replacement·of·funs·to·work,·use·the·syntax |
| 175 | <code·class="inline">fun·Module:FunctionName/Arity</code>.</p><p><a·href=""·id="on_load"></a></p><h2·id="running-a-function-when-a-module-is-loaded"·class="section-heading"> | 175 | <code·class="inline">fun·Module:FunctionName/Arity</code>.</p><p><a·href=""·id="on_load"></a></p><h2·id="running-a-function-when-a-module-is-loaded"·class="section-heading"> |
| 176 | ··<a·href="#running-a-function-when-a-module-is-loaded"·class="hover-link"> | 176 | ··<a·href="#running-a-function-when-a-module-is-loaded"·class="hover-link"> |
| 177 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 177 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 178 | ··</a> | 178 | ··</a> |
| 179 | ··<span·class="text">Running·a·Function·When·a·Module·is·Loaded</span> | 179 | ··<span·class="text">Running·a·Function·When·a·Module·is·Loaded</span> |
| 180 | </h2> | 180 | </h2> |
| 181 | <p>The·<code·class="inline">-on_load()</code>·directive·names·a·function·that·is·to·be·run·automatically·when | 181 | <p>The·<code·class="inline">-on_load()</code>·directive·names·a·function·that·is·to·be·run·automatically·when |
| 182 | a·module·is·loaded.</p><p>Its·syntax·is·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">on_load</span><span·class="p"·data-group-id=" | 182 | a·module·is·loaded.</p><p>Its·syntax·is·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">on_load</span><span·class="p"·data-group-id="6381666656-1">(</span><span·class="n">Name</span><span·class="o">/</span><span·class="mi">0</span><span·class="p"·data-group-id="6381666656-1">)</span><span·class="p">.</span></code></pre><p>It·is·not·necessary·to·export·the·function.·It·is·called·in·a·freshly·spawned |
| 183 | process·(which·terminates·as·soon·as·the·function·returns).</p><p>The·function·must·return·<code·class="inline">ok</code>·if·the·module·is·to·become·the·new·current·code | 183 | process·(which·terminates·as·soon·as·the·function·returns).</p><p>The·function·must·return·<code·class="inline">ok</code>·if·the·module·is·to·become·the·new·current·code |
| 184 | for·the·module·and·become·callable.</p><p>Returning·any·other·value·or·generating·an·exception·causes·the·new·code·to·be | 184 | for·the·module·and·become·callable.</p><p>Returning·any·other·value·or·generating·an·exception·causes·the·new·code·to·be |
| 185 | unloaded.·If·the·return·value·is·not·an·atom,·a·warning·error·report·is·sent·to | 185 | unloaded.·If·the·return·value·is·not·an·atom,·a·warning·error·report·is·sent·to |
| 186 | the·error·logger.</p><p>If·there·already·is·current·code·for·the·module,·that·code·will·remain·current | 186 | the·error·logger.</p><p>If·there·already·is·current·code·for·the·module,·that·code·will·remain·current |
| 187 | and·can·be·called·until·the·<code·class="inline">on_load</code>·function·has·returned.·If·the·<code·class="inline">on_load</code> | 187 | and·can·be·called·until·the·<code·class="inline">on_load</code>·function·has·returned.·If·the·<code·class="inline">on_load</code> |
| 188 | function·fails,·the·current·code·(if·any)·will·remain·current.·If·there·is·no | 188 | function·fails,·the·current·code·(if·any)·will·remain·current.·If·there·is·no |
| 189 | current·code·for·a·module,·any·process·that·makes·an·external·call·to·the·module | 189 | current·code·for·a·module,·any·process·that·makes·an·external·call·to·the·module |
| 190 | before·the·<code·class="inline">on_load</code>·function·has·finished·will·be·suspended·until·the·<code·class="inline">on_load</code> | 190 | before·the·<code·class="inline">on_load</code>·function·has·finished·will·be·suspended·until·the·<code·class="inline">on_load</code> |
| 191 | function·have·finished.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Change</h4><p>Before·Erlang/OTP·19,·if·the·<code·class="inline">on_load</code>·function·failed,·any·previously·current | 191 | function·have·finished.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Change</h4><p>Before·Erlang/OTP·19,·if·the·<code·class="inline">on_load</code>·function·failed,·any·previously·current |
| 192 | code·would·become·old,·essentially·leaving·the·system·without·any·working·and | 192 | code·would·become·old,·essentially·leaving·the·system·without·any·working·and |
| 193 | reachable·instance·of·the·module.</p></section><p>In·embedded·mode,·first·all·modules·are·loaded.·Then·all·<code·class="inline">on_load</code>·functions·are | 193 | reachable·instance·of·the·module.</p></section><p>In·embedded·mode,·first·all·modules·are·loaded.·Then·all·<code·class="inline">on_load</code>·functions·are |
| 194 | called.·The·system·is·terminated·unless·all·of·the·<code·class="inline">on_load</code>·functions·return | 194 | called.·The·system·is·terminated·unless·all·of·the·<code·class="inline">on_load</code>·functions·return |
| 195 | <code·class="inline">ok</code>.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="8 | 195 | <code·class="inline">ok</code>.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="8075371125-1">(</span><span·class="ss">m</span><span·class="p"·data-group-id="8075371125-1">)</span><span·class="p">.</span><span·class="w"> |
| 196 | </span><span·class="p">-</span><span·class="na">on_load</span><span·class="p"·data-group-id="8 | 196 | </span><span·class="p">-</span><span·class="na">on_load</span><span·class="p"·data-group-id="8075371125-2">(</span><span·class="ss">load_my_nifs</span><span·class="p">/</span><span·class="mi">0</span><span·class="p"·data-group-id="8075371125-2">)</span><span·class="p">.</span><span·class="w"> |
| 197 | </span><span·class="nf">load_my_nifs</span><span·class="p"·data-group-id="8 | 197 | </span><span·class="nf">load_my_nifs</span><span·class="p"·data-group-id="8075371125-3">(</span><span·class="p"·data-group-id="8075371125-3">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 198 | ····</span><span·class="n">NifPath</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p">,</span><span·class="w">····</span><span·class="c1">%Set·up·the·path·to·the·NIF·library.</span><span·class="w"> | 198 | ····</span><span·class="n">NifPath</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p">,</span><span·class="w">····</span><span·class="c1">%Set·up·the·path·to·the·NIF·library.</span><span·class="w"> |
| 199 | ····</span><span·class="n">Info</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p">,</span><span·class="w">·······</span><span·class="c1">%Initialize·the·Info·term</span><span·class="w"> | 199 | ····</span><span·class="n">Info</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p">,</span><span·class="w">·······</span><span·class="c1">%Initialize·the·Info·term</span><span·class="w"> |
| 200 | ····</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">load_nif</span><span·class="p"·data-group-id="8 | 200 | ····</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">load_nif</span><span·class="p"·data-group-id="8075371125-4">(</span><span·class="n">NifPath</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Info</span><span·class="p"·data-group-id="8075371125-4">)</span><span·class="p">.</span></code></pre><p>If·the·call·to·<a·href="../../erts-16.0/doc/html/erlang.html#load_nif/2"><code·class="inline">erlang:load_nif/2</code></a>·fails,·the·module·is·unloaded·and·a·warning |
| 201 | report·is·sent·to·the·error·loader.</p> | 201 | report·is·sent·to·the·error·loader.</p> |
| 202 | </div> | 202 | </div> |
| 203 | <div·class="bottom-actions"·id="bottom-actions"> | 203 | <div·class="bottom-actions"·id="bottom-actions"> |
| 204 | ··<div·class="bottom-actions-item"> | 204 | ··<div·class="bottom-actions-item"> |
| 205 | ······<a·href="distributed.html"·class="bottom-actions-button"·rel="prev"> | 205 | ······<a·href="distributed.html"·class="bottom-actions-button"·rel="prev"> |
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| 247 | ······<p·class="built-using"> | 247 | ······<p·class="built-using"> |
| 248 | ········Built·using | 248 | ········Built·using |
| 249 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 249 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 250 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 250 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 251 | ······</p> | 251 | ······</p> |
| 252 | <p>Copyright·©·1996-202 | 252 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 253 | ····</footer> | 253 | ····</footer> |
| 254 | ··</div> | 254 | ··</div> |
| 255 | </main> | 255 | </main> |
| 256 | </div> | 256 | </div> |
| 257 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 257 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 258 | ··<script> | 258 | ··<script> |
| 259 | ··let·initialized·=·false; | 259 | ··let·initialized·=·false; |
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| 118 | <p>This·section·lists·a·few·constructs·to·watch·out·for.</p><h2·id="operator"·class="section-heading"> | 118 | <p>This·section·lists·a·few·constructs·to·watch·out·for.</p><h2·id="operator"·class="section-heading"> |
| 119 | ··<a·href="#operator"·class="hover-link"> | 119 | ··<a·href="#operator"·class="hover-link"> |
| 120 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 120 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 121 | ··</a> | 121 | ··</a> |
| 122 | ··<span·class="text">Operator·<code·class="inline">++</code></span> | 122 | ··<span·class="text">Operator·<code·class="inline">++</code></span> |
| 123 | </h2> | 123 | </h2> |
| 124 | <p>The·<code·class="inline">++</code>·operator·copies·its·left-hand·side·operand.·That·is·clearly | 124 | <p>The·<code·class="inline">++</code>·operator·copies·its·left-hand·side·operand.·That·is·clearly |
| 125 | seen·if·we·do·our·own·implementation·in·Erlang:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">my_plus_plus</span><span·class="p"·data-group-id="6 | 125 | seen·if·we·do·our·own·implementation·in·Erlang:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">my_plus_plus</span><span·class="p"·data-group-id="6994703810-1">(</span><span·class="p"·data-group-id="6994703810-2">[</span><span·class="n">H</span><span·class="p">|</span><span·class="n">T</span><span·class="p"·data-group-id="6994703810-2">]</span><span·class="p">,</span><span·class="w">·</span><span·cla[·...·truncated·by·diffoscope;·len:·59,·SHA:·ad44ecfee24f213692567539dca0480320958a7adb05c286cc0ed50c5552c037·...·]-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 126 | ····</span><span·class="p"·data-group-id="6 | 126 | ····</span><span·class="p"·data-group-id="6994703810-3">[</span><span·class="n">H</span><span·class="p">|</span><span·class="nf">my_plus_plus</span><span·class="p"·data-group-id="6994703810-4">(</span><span·class="n">T</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Tail</span[·...·truncated·by·diffoscope;·len:·95,·SHA:·0354a323fae382a5c177cf6f507fee04d7b003cd48cd81093f6c652c636f0be1·...·]-3">]</span><span·class="p">;</span><span·class="w"> |
| 127 | </span><span·class="nf">my_plus_plus</span><span·class="p"·data-group-id="6 | 127 | </span><span·class="nf">my_plus_plus</span><span·class="p"·data-group-id="6994703810-5">(</span><span·class="p"·data-group-id="6994703810-6">[</span><span·class="p"·data-group-id="6994703810-6">]</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Tail</span><span·class="p"·data-group-id="6994703810-5">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 128 | ····</span><span·class="n">Tail</span><span·class="p">.</span></code></pre><p>We·must·be·careful·how·we·use·<code·class="inline">++</code>·in·a·loop.·First·is·how·not·to·use·it:</p><p><strong>DO·NOT</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">naive_reverse</span><span·class="p"·data-group-id=" | 128 | ····</span><span·class="n">Tail</span><span·class="p">.</span></code></pre><p>We·must·be·careful·how·we·use·<code·class="inline">++</code>·in·a·loop.·First·is·how·not·to·use·it:</p><p><strong>DO·NOT</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">naive_reverse</span><span·class="p"·data-group-id="8615120638-1">(</span><span·class="p"·data-group-id="8615120638-2">[</span><span·class="n">H</span><span·class="p">|</span><span·class="n">T</span><span·class="p"·data-group-id="8615120638-2">]</span><span·class="p"·data-group-id="8615120638-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 129 | ····</span><span·class="nf">naive_reverse</span><span·class="p"·data-group-id=" | 129 | ····</span><span·class="nf">naive_reverse</span><span·class="p"·data-group-id="8615120638-3">(</span><span·class="n">T</span><span·class="p"·data-group-id="8615120638-3">)</span><span·class="w">·</span><span·class="o">++</span><span·class="w">·</span><span·class="p"·data-group-id="8615120638-4">[</span><span·class="n">H</span><span·c[·...·truncated·by·diffoscope;·len:·34,·SHA:·70da309186e1406d6b3105168fb628ea680cd87691bfcf1b9d72e73efe386537·...·]-4">]</span><span·class="p">;</span><span·class="w"> |
| 130 | </span><span·class="nf">naive_reverse</span><span·class="p"·data-group-id=" | 130 | </span><span·class="nf">naive_reverse</span><span·class="p"·data-group-id="8615120638-5">(</span><span·class="p"·data-group-id="8615120638-6">[</span><span·class="p"·data-group-id="8615120638-6">]</span><span·class="p"·data-group-id="8615120638-5">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 131 | ····</span><span·class="p"·data-group-id=" | 131 | ····</span><span·class="p"·data-group-id="8615120638-7">[</span><span·class="p"·data-group-id="8615120638-7">]</span><span·class="p">.</span></code></pre><p>As·the·<code·class="inline">++</code>·operator·copies·its·left-hand·side·operand,·the·growing |
| 132 | result·is·copied·repeatedly,·leading·to·quadratic·complexity.</p><p>On·the·other·hand,·using·<code·class="inline">++</code>·in·loop·like·this·is·perfectly·fine:</p><p><strong>OK</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">naive_but_ok_reverse</span><span·class="p"·data-group-id=" | 132 | result·is·copied·repeatedly,·leading·to·quadratic·complexity.</p><p>On·the·other·hand,·using·<code·class="inline">++</code>·in·loop·like·this·is·perfectly·fine:</p><p><strong>OK</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">naive_but_ok_reverse</span><span·class="p"·data-group-id="2542687533-1">(</span><span·class="n">List</span><span·class="p"·data-group-id="2542687533-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 133 | ····</span><span·class="nf">naive_but_ok_reverse</span><span·class="p"·data-group-id=" | 133 | ····</span><span·class="nf">naive_but_ok_reverse</span><span·class="p"·data-group-id="2542687533-2">(</span><span·class="n">List</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2542687533-3">[</span><span·class="p"·data-group-id="2542687533-3">]</span><span·class="p"·data-group-id="2542687533-2">)</span><span·class="p">.</span><span·class="w"> |
| 134 | </span><span·class="nf">naive_but_ok_reverse</span><span·class="p"·data-group-id=" | 134 | </span><span·class="nf">naive_but_ok_reverse</span><span·class="p"·data-group-id="2542687533-4">(</span><span·class="p"·data-group-id="2542687533-5">[</span><span·class="n">H</span><span·class="p">|</span><span·class="n">T</span><span·class="p"·data-group-id="2542687533-5">]</span><span·class="p">,</span><span·class="w">·</span><span·cl[·...·truncated·by·diffoscope;·len:·59,·SHA:·b5c82d76f1286104cf423148a9228087e4d18882a90577ea81f2d66abef824f5·...·]-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 135 | ····</span><span·class="nf">naive_but_ok_reverse</span><span·class="p"·data-group-id=" | 135 | ····</span><span·class="nf">naive_but_ok_reverse</span><span·class="p"·data-group-id="2542687533-6">(</span><span·class="n">T</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2542687533-7">[</span><span·class="n">H</span><span·class="p"·data-group-id="2542687533-7">]</span><span·class="w">·</span><span·cl[·...·truncated·by·diffoscope;·len:·108,·SHA:·9c0b08eda2ce7ecf2903c967b53ec50154ba21c67b13e5a6f23f7824dbfdf190·...·]-6">)</span><span·class="p">;</span><span·class="w"> |
| 136 | </span><span·class="nf">naive_but_ok_reverse</span><span·class="p"·data-group-id=" | 136 | </span><span·class="nf">naive_but_ok_reverse</span><span·class="p"·data-group-id="2542687533-8">(</span><span·class="p"·data-group-id="2542687533-9">[</span><span·class="p"·data-group-id="2542687533-9">]</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Acc</span><span·class="p"·data-group-id="2542687533-8">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 137 | ····</span><span·class="n">Acc</span><span·class="p">.</span></code></pre><p>Each·list·element·is·copied·only·once.·The·growing·result·<code·class="inline">Acc</code>·is·the·right-hand | 137 | ····</span><span·class="n">Acc</span><span·class="p">.</span></code></pre><p>Each·list·element·is·copied·only·once.·The·growing·result·<code·class="inline">Acc</code>·is·the·right-hand |
| 138 | side·operand,·which·it·is·<em>not</em>·copied.</p><p>Experienced·Erlang·programmers·would·probably·write·as·follows:</p><p><strong>DO</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">vanilla_reverse</span><span·class="p"·data-group-id=" | 138 | side·operand,·which·it·is·<em>not</em>·copied.</p><p>Experienced·Erlang·programmers·would·probably·write·as·follows:</p><p><strong>DO</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">vanilla_reverse</span><span·class="p"·data-group-id="7149180370-1">(</span><span·class="p"·data-group-id="7149180370-2">[</span><span·class="n">H</span><span·class="p">|</span><span·class="n">T</span><span·class="p"·data-group-id="7149180370-2">]</span><span·class="p">,</span><span·class="w">·</span><span·cl[·...·truncated·by·diffoscope;·len:·59,·SHA:·7ab39fb641ee7c26aabbb03f3e78634ee6bd2616992af0fb737cb5c1cc87087e·...·]-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 139 | ····</span><span·class="nf">vanilla_reverse</span><span·class="p"·data-group-id=" | 139 | ····</span><span·class="nf">vanilla_reverse</span><span·class="p"·data-group-id="7149180370-3">(</span><span·class="n">T</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="7149180370-4">[</span><span·class="n">H</span><span·class="p">|</span><span·class="n">Acc</span><span·class="p"·data-group-id="7149[·...·truncated·by·diffoscope;·len:·59,·SHA:·a5947baba340ac9a0ce300b4d901dbb93ea5c942ce36af5f44de1f181d7e00ca·...·]-3">)</span><span·class="p">;</span><span·class="w"> |
| 140 | </span><span·class="nf">vanilla_reverse</span><span·class="p"·data-group-id=" | 140 | </span><span·class="nf">vanilla_reverse</span><span·class="p"·data-group-id="7149180370-5">(</span><span·class="p"·data-group-id="7149180370-6">[</span><span·class="p"·data-group-id="7149180370-6">]</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Acc</span><span·class="p"·data-group-id="7149180370-5">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 141 | ····</span><span·class="n">Acc</span><span·class="p">.</span></code></pre><p>In·principle,·this·is·slightly·more·efficient·because·the·list·element·<code·class="inline">[H]</code> | 141 | ····</span><span·class="n">Acc</span><span·class="p">.</span></code></pre><p>In·principle,·this·is·slightly·more·efficient·because·the·list·element·<code·class="inline">[H]</code> |
| 142 | is·not·built·before·being·copied·and·discarded.·In·practice,·the·compiler | 142 | is·not·built·before·being·copied·and·discarded.·In·practice,·the·compiler |
| 143 | rewrites·<code·class="inline">[H]·++·Acc</code>·to·<code·class="inline">[H|Acc]</code>.</p><h2·id="timer-module"·class="section-heading"> | 143 | rewrites·<code·class="inline">[H]·++·Acc</code>·to·<code·class="inline">[H|Acc]</code>.</p><h2·id="timer-module"·class="section-heading"> |
| 144 | ··<a·href="#timer-module"·class="hover-link"> | 144 | ··<a·href="#timer-module"·class="hover-link"> |
| 145 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 145 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 146 | ··</a> | 146 | ··</a> |
| 147 | ··<span·class="text">Timer·Module</span> | 147 | ··<span·class="text">Timer·Module</span> |
| Offset 160, 77 lines modified | Offset 160, 77 lines modified | ||
| 160 | therefore·harmless.</p><h2·id="accidental-copying-and-loss-of-sharing"·class="section-heading"> | 160 | therefore·harmless.</p><h2·id="accidental-copying-and-loss-of-sharing"·class="section-heading"> |
| 161 | ··<a·href="#accidental-copying-and-loss-of-sharing"·class="hover-link"> | 161 | ··<a·href="#accidental-copying-and-loss-of-sharing"·class="hover-link"> |
| 162 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 162 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 163 | ··</a> | 163 | ··</a> |
| 164 | ··<span·class="text">Accidental·Copying·and·Loss·of·Sharing</span> | 164 | ··<span·class="text">Accidental·Copying·and·Loss·of·Sharing</span> |
| 165 | </h2> | 165 | </h2> |
| 166 | <p>When·spawning·a·new·process·using·a·fun,·one·can·accidentally·copy·more·data·to | 166 | <p>When·spawning·a·new·process·using·a·fun,·one·can·accidentally·copy·more·data·to |
| 167 | the·process·than·intended.·For·example:</p><p><strong>DO·NOT</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">accidental1</span><span·class="p"·data-group-id=" | 167 | the·process·than·intended.·For·example:</p><p><strong>DO·NOT</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">accidental1</span><span·class="p"·data-group-id="1846970624-1">(</span><span·class="n">State</span><span·class="p"·data-group-id="1846970624-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 168 | ····</span><span·class="nf">spawn</span><span·class="p"·data-group-id=" | 168 | ····</span><span·class="nf">spawn</span><span·class="p"·data-group-id="1846970624-2">(</span><span·class="nf">fun</span><span·class="p"·data-group-id="1846970624-3">(</span><span·class="p"·data-group-id="1846970624-3">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 169 | ··················</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 169 | ··················</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="1846970624-4">(</span><span·class="s">"</span><span·class="si">~p</span><span·class="s">\n"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1846970624-5">[</span><span·class="n">State</span><span·class="o">#</[·...·truncated·by·diffoscope;·len:·180,·SHA:·d233707cf3a887aad59f322b7cb90db328307691ac1f352e11b51f93f16a711e·...·]-4">)</span><span·class="w"> |
| 170 | ··········</span><span·class="k">end</span><span·class="p"·data-group-id=" | 170 | ··········</span><span·class="k">end</span><span·class="p"·data-group-id="1846970624-2">)</span><span·class="p">.</span></code></pre><p>The·code·in·the·fun·will·extract·one·element·from·the·record·and·print·it.·The |
| 171 | rest·of·the·<code·class="inline">state</code>·record·is·not·used.·However,·when·the·<a·href="../../erts-16.0/doc/html/erlang.html#spawn/1"><code·class="inline">spawn/1</code></a> | 171 | rest·of·the·<code·class="inline">state</code>·record·is·not·used.·However,·when·the·<a·href="../../erts-16.0/doc/html/erlang.html#spawn/1"><code·class="inline">spawn/1</code></a> |
| 172 | function·is·executed,·the·entire·record·is·copied·to·the·newly·created·process.</p><p>The·same·kind·of·problem·can·happen·with·a·map:</p><p><strong>DO·NOT</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">accidental2</span><span·class="p"·data-group-id=" | 172 | function·is·executed,·the·entire·record·is·copied·to·the·newly·created·process.</p><p>The·same·kind·of·problem·can·happen·with·a·map:</p><p><strong>DO·NOT</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">accidental2</span><span·class="p"·data-group-id="6082556940-1">(</span><span·class="n">State</span><span·class="p"·data-group-id="6082556940-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 173 | ····</span><span·class="nf">spawn</span><span·class="p"·data-group-id=" | 173 | ····</span><span·class="nf">spawn</span><span·class="p"·data-group-id="6082556940-2">(</span><span·class="nf">fun</span><span·class="p"·data-group-id="6082556940-3">(</span><span·class="p"·data-group-id="6082556940-3">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 174 | ··················</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 174 | ··················</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="6082556940-4">(</span><span·class="s">"</span><span·class="si">~p</span><span·class="s">\n"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6082556940-5">[</span><span·class="nf">map_get</span><span·class="p"·[·...·truncated·by·diffoscope;·len:·288,·SHA:·58fadd3484de0c43d21e58f86ca0a109b994ad6fe5240dc35ce4fa05f6ab5cd2·...·]-4">)</span><span·class="w"> |
| 175 | ··········</span><span·class="k">end</span><span·class="p"·data-group-id=" | 175 | ··········</span><span·class="k">end</span><span·class="p"·data-group-id="6082556940-2">)</span><span·class="p">.</span></code></pre><p>In·the·following·example·(part·of·a·module·implementing·the·<a·href="../../lib/stdlib-7.0/doc/html/gen_server.html"><code·class="inline">gen_server</code></a> |
| 176 | behavior)·the·created·fun·is·sent·to·another·process:</p><p><strong>DO·NOT</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">handle_call</span><span·class="p"·data-group-id=" | 176 | behavior)·the·created·fun·is·sent·to·another·process:</p><p><strong>DO·NOT</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">handle_call</span><span·class="p"·data-group-id="5270002889-1">(</span><span·class="ss">give_me_a_fun</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="n">From</span><span·class="p">,</span><span·class="w">·</span><span·class="n">State</span><span·class="p"·data-g[·...·truncated·by·diffoscope;·len:·19,·SHA:·20e7d0a631fb264fcf8589aa95d54e99a9c4e9a900947608dad5e7c9e6f226b2·...·]-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 177 | ····</span><span·class="n">Fun</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id=" | 177 | ····</span><span·class="n">Fun</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id="5270002889-2">(</span><span·class="p"·data-group-id="5270002889-2">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">State</span><span·class="o">#</span><span·class="ss">state</span><span·class="p">.</span><span·class="nb">size</span><span·class="w">·</span><span·class="o">=:=</span><span·class="w">·</span><span·class="mi">42</span><span·class="w">·</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> |
| 178 | ····</span><span·class="p"·data-group-id=" | 178 | ····</span><span·class="p"·data-group-id="5270002889-3">{</span><span·class="ss">reply</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Fun</span><span·class="p">,</span><span·class="w">·</span><span·class="n">State</span><span·class="p"·data-group-id="5270002889-3">}</span><span·class="p">.</span></code></pre><p>How·bad·that·unnecessary·copy·is·depends·on·the·contents·of·the·record·or·the |
| 179 | map.</p><p>For·example,·if·the·<code·class="inline">state</code>·record·is·initialized·like·this:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">init1</span><span·class="p"·data-group-id=" | 179 | map.</p><p>For·example,·if·the·<code·class="inline">state</code>·record·is·initialized·like·this:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">init1</span><span·class="p"·data-group-id="2026661090-1">(</span><span·class="p"·data-group-id="2026661090-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 180 | ····</span><span·class="o">#</span><span·class="ss">state</span><span·class="p"·data-group-id=" | 180 | ····</span><span·class="o">#</span><span·class="ss">state</span><span·class="p"·data-group-id="2026661090-2">{</span><span·class="ss">data</span><span·class="o">=</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">seq</span><span·class="p"·data-group-id="2026661090-3">(</span><span·class="mi">1</span><span·class="p">,</span>[·...·truncated·by·diffoscope;·len:·147,·SHA:·4168ddd8506f73f247393ff9145e606086b93a1b39a1ee593c0d4220d60ea200·...·]-2">}</span><span·class="p">.</span></code></pre><p>a·list·with·10000·elements·(or·about·20000·heap·words)·will·be·copied·to·the |
| 181 | newly·created·process.</p><p>An·unnecessary·copy·of·10000·element·list·can·be·bad·enough,·but·it·can·get·even | 181 | newly·created·process.</p><p>An·unnecessary·copy·of·10000·element·list·can·be·bad·enough,·but·it·can·get·even |
| 182 | worse·if·the·<code·class="inline">state</code>·record·contains·<em>shared·subterms</em>.·Here·is·a·simple·example | 182 | worse·if·the·<code·class="inline">state</code>·record·contains·<em>shared·subterms</em>.·Here·is·a·simple·example |
| 183 | of·a·term·with·a·shared·subterm:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 183 | of·a·term·with·a·shared·subterm:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="8999932687-1">{</span><span·class="n">SubTerm</span><span·class="p">,</span><span·class="w">·</span><span·class="n">SubTerm</span><span·class="p"·data-group-id="8999932687-1">}</span></code></pre><p>When·a·term·is·copied·to·another·process,·sharing·of·subterms·will·be·lost·and |
| 184 | the·copied·term·can·be·many·times·larger·than·the·original·term.·For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">init2</span><span·class="p"·data-group-id=" | 184 | the·copied·term·can·be·many·times·larger·than·the·original·term.·For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">init2</span><span·class="p"·data-group-id="3006801968-1">(</span><span·class="p"·data-group-id="3006801968-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 185 | ····</span><span·class="n">SharedSubTerms</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">foldl</span><span·class="p"·data-group-id=" | 185 | ····</span><span·class="n">SharedSubTerms</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">foldl</span><span·class="p"·data-group-id="3006801968-2">(</span><span·class="nf">fun</span><span·class="p"·data-group-id="3006801968-3">(</span><span·class="p">_</span><span·class="p">,</span><span·class="w">·</span><span·class="n">A</span><span·class="p"·data-group-id="3006801968-3">)</span><span[·...·truncated·by·diffoscope;·len:·852,·SHA:·84877f9e2045dae02c0158d7948b4227b5a91395ff9e0cd840b4d969c75fdeb9·...·]-2">)</span><span·class="p">,</span><span·class="w"> |
| 186 | ····</span><span·class="o">#</span><span·class="ss">state</span><span·class="p"·data-group-id=" | 186 | ····</span><span·class="o">#</span><span·class="ss">state</span><span·class="p"·data-group-id="3006801968-7">{</span><span·class="ss">data</span><span·class="o">=</span><span·class="n">Shared</span><span·class="p"·data-group-id="3006801968-7">}</span><span·class="p">.</span></code></pre><p>In·the·process·that·calls·<code·class="inline">init2/0</code>,·the·size·of·the·<code·class="inline">data</code>·field·in·the·<code·class="inline">state</code> |
| 187 | record·will·be·32·heap·words.·When·the·record·is·copied·to·the·newly·created | 187 | record·will·be·32·heap·words.·When·the·record·is·copied·to·the·newly·created |
| 188 | process,·sharing·will·be·lost·and·the·size·of·the·copied·<code·class="inline">data</code>·field·will·be | 188 | process,·sharing·will·be·lost·and·the·size·of·the·copied·<code·class="inline">data</code>·field·will·be |
| 189 | 131070·heap·words.·More·details·about | 189 | 131070·heap·words.·More·details·about |
| 190 | <a·href="eff_guide_processes.html#loss-of-sharing">loss·off·sharing</a>·are·found·in·a·later | 190 | <a·href="eff_guide_processes.html#loss-of-sharing">loss·off·sharing</a>·are·found·in·a·later |
| 191 | section.</p><p>To·avoid·the·problem,·outside·of·the·fun·extract·only·the·fields·of·the·record | 191 | section.</p><p>To·avoid·the·problem,·outside·of·the·fun·extract·only·the·fields·of·the·record |
| 192 | that·are·actually·used:</p><p><strong>DO</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">fixed_accidental1</span><span·class="p"·data-group-id=" | 192 | that·are·actually·used:</p><p><strong>DO</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">fixed_accidental1</span><span·class="p"·data-group-id="9240192489-1">(</span><span·class="n">State</span><span·class="p"·data-group-id="9240192489-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 193 | ····</span><span·class="n">Info</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">State</span><span·class="o">#</span><span·class="ss">state</span><span·class="p">.</span><span·class="ss">info</span><span·class="p">,</span><span·class="w"> | 193 | ····</span><span·class="n">Info</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">State</span><span·class="o">#</span><span·class="ss">state</span><span·class="p">.</span><span·class="ss">info</span><span·class="p">,</span><span·class="w"> |
| 194 | ····</span><span·class="nf">spawn</span><span·class="p"·data-group-id=" | 194 | ····</span><span·class="nf">spawn</span><span·class="p"·data-group-id="9240192489-2">(</span><span·class="nf">fun</span><span·class="p"·data-group-id="9240192489-3">(</span><span·class="p"·data-group-id="9240192489-3">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 195 | ··················</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 195 | ··················</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="9240192489-4">(</span><span·class="s">"</span><span·class="si">~p</span><span·class="s">\n"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9240192489-5">[</span><span·class="n">Info</span><span·class="p"·data[·...·truncated·by·diffoscope;·len:·74,·SHA:·acc7d365158e6b76679788459087a9191b16bfb4f4c1bd1910f9854fea1a16ea·...·]-4">)</span><span·class="w"> |
| 196 | ··········</span><span·class="k">end</span><span·class="p"·data-group-id=" | 196 | ··········</span><span·class="k">end</span><span·class="p"·data-group-id="9240192489-2">)</span><span·class="p">.</span></code></pre><p>Similarly,·outside·of·the·fun·extract·only·the·map·elements·that·are·actually |
| 197 | used:</p><p><strong>DO</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">fixed_accidental2</span><span·class="p"·data-group-id=" | 197 | used:</p><p><strong>DO</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">fixed_accidental2</span><span·class="p"·data-group-id="4253005008-1">(</span><span·class="n">State</span><span·class="p"·data-group-id="4253005008-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 198 | ····</span><span·class="n">Info</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">map_get</span><span·class="p"·data-group-id=" | 198 | ····</span><span·class="n">Info</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">map_get</span><span·class="p"·data-group-id="4253005008-2">(</span><span·class="ss">info</span><span·class="p">,</span><span·class="w">·</span><span·class="n">State</span><span·class="p"·data-group-id="4253005008-2">)</span><span·class="p">,</span><span·class="w"> |
| 199 | ····</span><span·class="nf">spawn</span><span·class="p"·data-group-id=" | 199 | ····</span><span·class="nf">spawn</span><span·class="p"·data-group-id="4253005008-3">(</span><span·class="nf">fun</span><span·class="p"·data-group-id="4253005008-4">(</span><span·class="p"·data-group-id="4253005008-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 200 | ··················</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 200 | ··················</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="4253005008-5">(</span><span·class="s">"</span><span·class="si">~p</span><span·class="s">\n"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4253005008-6">[</span><span·class="n">Info</span><span·class="p"·data[·...·truncated·by·diffoscope;·len:·74,·SHA:·27a09e921c0ea9c44b0197bd762a5ddb71cb2313d1985467b7da55900085e54e·...·]-5">)</span><span·class="w"> |
| 201 | ··········</span><span·class="k">end</span><span·class="p"·data-group-id=" | 201 | ··········</span><span·class="k">end</span><span·class="p"·data-group-id="4253005008-3">)</span><span·class="p">.</span></code></pre><h2·id="list_to_atom-1"·class="section-heading"> |
| 202 | ··<a·href="#list_to_atom-1"·class="hover-link"> | 202 | ··<a·href="#list_to_atom-1"·class="hover-link"> |
| 203 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 203 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 204 | ··</a> | 204 | ··</a> |
| 205 | ··<span·class="text">list_to_atom/1</span> | 205 | ··<span·class="text">list_to_atom/1</span> |
| 206 | </h2> | 206 | </h2> |
| 207 | <p>Atoms·are·not·garbage-collected.·Once·an·atom·is·created,·it·is·never·removed. | 207 | <p>Atoms·are·not·garbage-collected.·Once·an·atom·is·created,·it·is·never·removed. |
| 208 | The·emulator·terminates·if·the·limit·for·the·number·of·atoms·(1,048,576·by | 208 | The·emulator·terminates·if·the·limit·for·the·number·of·atoms·(1,048,576·by |
| 209 | default)·is·reached.</p><p>Therefore,·converting·arbitrary·input·strings·to·atoms·can·be·dangerous·in·a | 209 | default)·is·reached.</p><p>Therefore,·converting·arbitrary·input·strings·to·atoms·can·be·dangerous·in·a |
| 210 | system·that·runs·continuously.·If·only·certain·well-defined·atoms·are·allowed·as | 210 | system·that·runs·continuously.·If·only·certain·well-defined·atoms·are·allowed·as |
| 211 | input,·<a·href="../../erts-16.0/doc/html/erlang.html#list_to_existing_atom/1"><code·class="inline">list_to_existing_atom/1</code></a>·or | 211 | input,·<a·href="../../erts-16.0/doc/html/erlang.html#list_to_existing_atom/1"><code·class="inline">list_to_existing_atom/1</code></a>·or |
| 212 | <a·href="../../erts-16.0/doc/html/erlang.html#binary_to_existing_atom/1"><code·class="inline">binary_to_existing_atom/1</code></a>·can·be·used | 212 | <a·href="../../erts-16.0/doc/html/erlang.html#binary_to_existing_atom/1"><code·class="inline">binary_to_existing_atom/1</code></a>·can·be·used |
| 213 | to·guard·against·a·denial-of-service·attack.·(All·atoms·that·are·allowed·must | 213 | to·guard·against·a·denial-of-service·attack.·(All·atoms·that·are·allowed·must |
| 214 | have·been·created·earlier,·for·example,·by·using·all·of·them·in·a·module | 214 | have·been·created·earlier,·for·example,·by·using·all·of·them·in·a·module |
| 215 | and·loading·that·module.)</p><p>Using·<a·href="../../erts-16.0/doc/html/erlang.html#list_to_atom/1"><code·class="inline">list_to_atom/1</code></a>·to·construct·an·atom·that | 215 | and·loading·that·module.)</p><p>Using·<a·href="../../erts-16.0/doc/html/erlang.html#list_to_atom/1"><code·class="inline">list_to_atom/1</code></a>·to·construct·an·atom·that |
| 216 | is·passed·to·<a·href="../../erts-16.0/doc/html/erlang.html#apply/3"><code·class="inline">apply/3</code></a>·is·quite·expensive.</p><p><strong>DO·NOT</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">apply</span><span·class="p"·data-group-id=" | 216 | is·passed·to·<a·href="../../erts-16.0/doc/html/erlang.html#apply/3"><code·class="inline">apply/3</code></a>·is·quite·expensive.</p><p><strong>DO·NOT</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">apply</span><span·class="p"·data-group-id="8437451039-1">(</span><span·class="nf">list_to_atom</span><span·class="p"·data-group-id="8437451039-2">(</span><span·class="s">"some_prefix"</span><span·class="o">++</span><span·class="n">Var</span><span·class="p"·data-group-id="8437451039-2">)</[·...·truncated·by·diffoscope;·len:·196,·SHA:·2e502725c0ea8c9825e96a9a8747acde26bd9e58b4a4ebc3065809a0ca255085·...·]-1">)</span></code></pre><h2·id="length-1"·class="section-heading"> |
| 217 | ··<a·href="#length-1"·class="hover-link"> | 217 | ··<a·href="#length-1"·class="hover-link"> |
| 218 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 218 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 219 | ··</a> | 219 | ··</a> |
| 220 | ··<span·class="text">length/1</span> | 220 | ··<span·class="text">length/1</span> |
| 221 | </h2> | 221 | </h2> |
| 222 | <p>The·time·for·calculating·the·length·of·a·list·is·proportional·to·the·length·of | 222 | <p>The·time·for·calculating·the·length·of·a·list·is·proportional·to·the·length·of |
| 223 | the·list,·as·opposed·to·<a·href="../../erts-16.0/doc/html/erlang.html#tuple_size/1"><code·class="inline">tuple_size/1</code></a>, | 223 | the·list,·as·opposed·to·<a·href="../../erts-16.0/doc/html/erlang.html#tuple_size/1"><code·class="inline">tuple_size/1</code></a>, |
| 224 | <a·href="../../erts-16.0/doc/html/erlang.html#byte_size/1"><code·class="inline">byte_size/1</code></a>,·and·<a·href="../../erts-16.0/doc/html/erlang.html#bit_size/1"><code·class="inline">bit_size/1</code></a>,·which·all | 224 | <a·href="../../erts-16.0/doc/html/erlang.html#byte_size/1"><code·class="inline">byte_size/1</code></a>,·and·<a·href="../../erts-16.0/doc/html/erlang.html#bit_size/1"><code·class="inline">bit_size/1</code></a>,·which·all |
| 225 | execute·in·constant·time.</p><p>Normally,·there·is·no·need·to·worry·about·the·speed·of·<a·href="../../erts-16.0/doc/html/erlang.html#length/1"><code·class="inline">length/1</code></a>, | 225 | execute·in·constant·time.</p><p>Normally,·there·is·no·need·to·worry·about·the·speed·of·<a·href="../../erts-16.0/doc/html/erlang.html#length/1"><code·class="inline">length/1</code></a>, |
| 226 | because·it·is·efficiently·implemented·in·C.·In·time-critical·code,·you·might | 226 | because·it·is·efficiently·implemented·in·C.·In·time-critical·code,·you·might |
| 227 | want·to·avoid·it·if·the·input·list·could·potentially·be·very·long.</p><p>Some·uses·of·<a·href="../../erts-16.0/doc/html/erlang.html#length/1"><code·class="inline">length/1</code></a>·can·be·replaced·by·matching.·For·example, | 227 | want·to·avoid·it·if·the·input·list·could·potentially·be·very·long.</p><p>Some·uses·of·<a·href="../../erts-16.0/doc/html/erlang.html#length/1"><code·class="inline">length/1</code></a>·can·be·replaced·by·matching.·For·example, |
| 228 | the·following·code:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">foo</span><span·class="p"·data-group-id="6542107383-1">(</span><span·class="n">L</span><span·class="p"·data-group-id="6542107383-1">)</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><span·class="nf">length</span><span·class="p"·data-group-id="6542107383-2">(</span><span·class="n">L</span><span·class="p"·data-group-id="6542107383-2">)</span><span·class="w">·</span><span·class="o">>=</span><span·class="w">·</span><span·class="mi">3</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | ||
| 229 | 228 | the·following·code:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">foo</span><span·class="p"·data-group-id="9682480640-1">(</span><span·class="n">L</span><span·class="p"·data-group-id="9682480640-1">)</span><span·class="w">·</span><spa[·...·truncated·by·diffoscope;·len:·301,·SHA:·41860c4ca75b3a392939c26693de68a497a8c1752f7d7b02d6ee1cd934e81113·...·]</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | |
| 229 | ····</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span></code></pre><p>can·be·rewritten·to:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">foo</span><span·class="p"·data-group-id="1558554360-1">(</span><span·class="p"·data-group-id="1558554360-2">[</span><span·class="p">_</span><span·class="p">,</span><span·class="p">_</span><span·class="p">,</span><span·class="p">_</span><span·class="p">|</span><span·class="p">_</span><span·class="p"·data-group-id="1558554360-2">]</span><span·class="o">=</span><span·class="n">L</span><span·class="p"·data-group-id="1558554360-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | ||
| 230 | ···</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span></code></pre><p>One·slight·difference·is·that·<a·href="../../erts-16.0/doc/html/erlang.html#length/1"><code·class="inline">length(L)</code></a>·fails·if·<code·class="inline">L</code>·is·an | 230 | ···</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span></code></pre><p>One·slight·difference·is·that·<a·href="../../erts-16.0/doc/html/erlang.html#length/1"><code·class="inline">length(L)</code></a>·fails·if·<code·class="inline">L</code>·is·an |
| 231 | improper·list,·while·the·pattern·in·the·second·code·fragment·accepts·an·improper | 231 | improper·list,·while·the·pattern·in·the·second·code·fragment·accepts·an·improper |
| 232 | list.</p><h2·id="setelement-3"·class="section-heading"> | 232 | list.</p><h2·id="setelement-3"·class="section-heading"> |
| 233 | ··<a·href="#setelement-3"·class="hover-link"> | 233 | ··<a·href="#setelement-3"·class="hover-link"> |
| 234 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 234 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 235 | ··</a> | 235 | ··</a> |
| 236 | ··<span·class="text">setelement/3</span> | 236 | ··<span·class="text">setelement/3</span> |
| Offset 238, 18 lines modified | Offset 238, 18 lines modified | ||
| 238 | <p><a·href="../../erts-16.0/doc/html/erlang.html#setelement/3"><code·class="inline">setelement/3</code></a>·copies·the·tuple·it·modifies.·Therefore, | 238 | <p><a·href="../../erts-16.0/doc/html/erlang.html#setelement/3"><code·class="inline">setelement/3</code></a>·copies·the·tuple·it·modifies.·Therefore, |
| 239 | updating·a·tuple·in·a·loop·using·<a·href="../../erts-16.0/doc/html/erlang.html#setelement/3"><code·class="inline">setelement/3</code></a>·creates·a·new | 239 | updating·a·tuple·in·a·loop·using·<a·href="../../erts-16.0/doc/html/erlang.html#setelement/3"><code·class="inline">setelement/3</code></a>·creates·a·new |
| 240 | copy·of·the·tuple·every·time.</p><p>There·is·one·exception·to·the·rule·that·the·tuple·is·copied.·If·the·compiler | 240 | copy·of·the·tuple·every·time.</p><p>There·is·one·exception·to·the·rule·that·the·tuple·is·copied.·If·the·compiler |
| 241 | clearly·can·see·that·destructively·updating·the·tuple·would·give·the·same·result | 241 | clearly·can·see·that·destructively·updating·the·tuple·would·give·the·same·result |
| 242 | as·if·the·tuple·was·copied,·the·call·to·<a·href="../../erts-16.0/doc/html/erlang.html#setelement/3"><code·class="inline">setelement/3</code></a>·is | 242 | as·if·the·tuple·was·copied,·the·call·to·<a·href="../../erts-16.0/doc/html/erlang.html#setelement/3"><code·class="inline">setelement/3</code></a>·is |
| 243 | replaced·with·a·special·destructive·<code·class="inline">setelement</code>·instruction.·In·the·following | 243 | replaced·with·a·special·destructive·<code·class="inline">setelement</code>·instruction.·In·the·following |
| 244 | code·sequence,·the·first·<a·href="../../erts-16.0/doc/html/erlang.html#setelement/3"><code·class="inline">setelement/3</code></a>·call·copies·the·tuple | 244 | code·sequence,·the·first·<a·href="../../erts-16.0/doc/html/erlang.html#setelement/3"><code·class="inline">setelement/3</code></a>·call·copies·the·tuple |
| 245 | and·modifies·the·ninth·element:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">multiple_setelement</span><span·class="p"·data-group-id=" | 245 | and·modifies·the·ninth·element:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">multiple_setelement</span><span·class="p"·data-group-id="7302742943-1">(</span><span·class="n">T0</span><span·class="p"·data-group-id="7302742943-1">)</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><span·class="nf">tuple_size</span><span·class="p"·data-group-id="7302742943-2">(<[·...·truncated·by·diffoscope;·len:·72,·SHA:·153fed058802190e10cc2041c1250ab33e49655c129433d8cdb475ae3c100a61·...·]-2">)</span><span·class="w">·</span><span·class="o">=:=</span><span·class="w">·</span><span·class="mi">9</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 246 | ····</span><span·class="n">T1</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">setelement</span><span·class="p"·data-group-id=" | 246 | ····</span><span·class="n">T1</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">setelement</span><span·class="p"·data-group-id="7302742943-3">(</span><span·class="mi">9</span><span·class="p">,</span><span·class="w">·</span><span·class="n">T0</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">bar</span><span·class="p"·data-group-id="7302742943-3">)</span><span·class="p">,</span><span·class="w"> |
| 247 | ····</span><span·class="n">T2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">setelement</span><span·class="p"·data-group-id=" | 247 | ····</span><span·class="n">T2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">setelement</span><span·class="p"·data-group-id="7302742943-4">(</span><span·class="mi">7</span><span·class="p">,</span><span·class="w">·</span><span·class="n">T1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">foobar</span><span·class="p"·data-group-id="7302742943-4">)</span><span·class="p">,</span><span·class="w"> |
| 248 | ····</span><span·class="nf">setelement</span><span·class="p"·data-group-id=" | 248 | ····</span><span·class="nf">setelement</span><span·class="p"·data-group-id="7302742943-5">(</span><span·class="mi">5</span><span·class="p">,</span><span·class="w">·</span><span·class="n">T2</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">new_value</span><span·class="p"·data-group-id="7302742943-5">)</span><span·class="p">.</span></code></pre><p>The·two·following·<a·href="../../erts-16.0/doc/html/erlang.html#setelement/3"><code·class="inline">setelement/3</code></a>·calls·modify·the·tuple·in |
| 249 | place.</p><p>For·the·optimization·to·be·applied,·<em>all</em>·the·following·conditions·must·be·true:</p><ul><li>The·tuple·argument·must·be·known·to·be·a·tuple·of·a·known·size.</li><li>The·indices·must·be·integer·literals,·not·variables·or·expressions.</li><li>The·indices·must·be·given·in·descending·order.</li><li>There·must·be·no·calls·to·another·function·in·between·the·calls·to | 249 | place.</p><p>For·the·optimization·to·be·applied,·<em>all</em>·the·following·conditions·must·be·true:</p><ul><li>The·tuple·argument·must·be·known·to·be·a·tuple·of·a·known·size.</li><li>The·indices·must·be·integer·literals,·not·variables·or·expressions.</li><li>The·indices·must·be·given·in·descending·order.</li><li>There·must·be·no·calls·to·another·function·in·between·the·calls·to |
| 250 | <a·href="../../erts-16.0/doc/html/erlang.html#setelement/3"><code·class="inline">setelement/3</code></a>.</li><li>The·tuple·returned·from·one·<a·href="../../erts-16.0/doc/html/erlang.html#setelement/3"><code·class="inline">setelement/3</code></a>·call·must·only·be | 250 | <a·href="../../erts-16.0/doc/html/erlang.html#setelement/3"><code·class="inline">setelement/3</code></a>.</li><li>The·tuple·returned·from·one·<a·href="../../erts-16.0/doc/html/erlang.html#setelement/3"><code·class="inline">setelement/3</code></a>·call·must·only·be |
| 251 | used·in·the·subsequent·call·to·<a·href="../../erts-16.0/doc/html/erlang.html#setelement/3"><code·class="inline">setelement/3</code></a>.</li></ul><p>If·the·code·cannot·be·structured·as·in·the·<code·class="inline">multiple_setelement/1</code>·example,·the | 251 | used·in·the·subsequent·call·to·<a·href="../../erts-16.0/doc/html/erlang.html#setelement/3"><code·class="inline">setelement/3</code></a>.</li></ul><p>If·the·code·cannot·be·structured·as·in·the·<code·class="inline">multiple_setelement/1</code>·example,·the |
| 252 | best·way·to·modify·multiple·elements·in·a·large·tuple·is·to·convert·the·tuple·to | 252 | best·way·to·modify·multiple·elements·in·a·large·tuple·is·to·convert·the·tuple·to |
| 253 | a·list,·modify·the·list,·and·convert·it·back·to·a·tuple.</p><h2·id="size-1"·class="section-heading"> | 253 | a·list,·modify·the·list,·and·convert·it·back·to·a·tuple.</p><h2·id="size-1"·class="section-heading"> |
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| 199 | ··</a> | 199 | ··</a> |
| 200 | ··<span·class="text">Representation·of·Floating·Point·Numbers</span> | 200 | ··<span·class="text">Representation·of·Floating·Point·Numbers</span> |
| 201 | </h3> | 201 | </h3> |
| 202 | <p>When·working·with·floats·you·may·not·see·what·you·expect·when·printing·or·doing | 202 | <p>When·working·with·floats·you·may·not·see·what·you·expect·when·printing·or·doing |
| 203 | arithmetic·operations.·This·is·because·floats·are·represented·by·a·fixed·number | 203 | arithmetic·operations.·This·is·because·floats·are·represented·by·a·fixed·number |
| 204 | of·bits·in·a·base-2·system·while·printed·floats·are·represented·with·a·base-10 | 204 | of·bits·in·a·base-2·system·while·printed·floats·are·represented·with·a·base-10 |
| 205 | system.·Erlang·uses·64-bit·floats.·Here·are·examples·of·this·phenomenon:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="mf">0.1</span><span·class="o">+</span><span·class="mf">0.2</span><span·class="p">.</span><span·class="w"> | 205 | system.·Erlang·uses·64-bit·floats.·Here·are·examples·of·this·phenomenon:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="mf">0.1</span><span·class="o">+</span><span·class="mf">0.2</span><span·class="p">.</span><span·class="w"> |
| 206 | </span><span·class="mf">0.30000000000000004</span></code></pre><p>The·real·numbers·<code·class="inline">0.1</code>·and·<code·class="inline">0.2</code>·cannot·be·represented·exactly·as·floats.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="p"·data-group-id=" | 206 | </span><span·class="mf">0.30000000000000004</span></code></pre><p>The·real·numbers·<code·class="inline">0.1</code>·and·<code·class="inline">0.2</code>·cannot·be·represented·exactly·as·floats.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="p"·data-group-id="5743491745-1">{</span><span·class="mf">36028797018963968.0</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">36028797018963968</span><span·class="w">·</span><span·class="o">==</span><span·class="w">·</span><span·class="mf">36028797018963968.0</span><span·class="p">,</span><span·class="w"> |
| 207 | ··</span><span·class="mf">36028797018963970.0</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">36028797018963970</span><span·class="w">·</span><span·class="o">==</span><span·class="w">·</span><span·class="mf">36028797018963970.0</span><span·class="p"·data-group-id=" | 207 | ··</span><span·class="mf">36028797018963970.0</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">36028797018963970</span><span·class="w">·</span><span·class="o">==</span><span·class="w">·</span><span·class="mf">36028797018963970.0</span><span·class="p"·data-group-id="5743491745-1">}</span><span·class="p">.</span><span·class="w"> |
| 208 | </span><span·class="p"·data-group-id=" | 208 | </span><span·class="p"·data-group-id="5743491745-2">{</span><span·class="mf">3.602879701896397e16</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">true</span><span·class="p">,</span><span·class="w"> |
| 209 | ·</span><span·class="mf">3.602879701896397e16</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">false</span><span·class="p"·data-group-id=" | 209 | ·</span><span·class="mf">3.602879701896397e16</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">false</span><span·class="p"·data-group-id="5743491745-2">}</span><span·class="p">.</span></code></pre><p>The·value·<code·class="inline">36028797018963968</code>·can·be·represented·exactly·as·a·float·value·but |
| 210 | Erlang's·pretty·printer·rounds·<code·class="inline">36028797018963968.0</code>·to·<code·class="inline">3.602879701896397e16</code> | 210 | Erlang's·pretty·printer·rounds·<code·class="inline">36028797018963968.0</code>·to·<code·class="inline">3.602879701896397e16</code> |
| 211 | (<code·class="inline">=36028797018963970.0</code>)·as·all·values·in·the·range | 211 | (<code·class="inline">=36028797018963970.0</code>)·as·all·values·in·the·range |
| 212 | <code·class="inline">[36028797018963966.0,·36028797018963972.0]</code>·are·represented·by | 212 | <code·class="inline">[36028797018963966.0,·36028797018963972.0]</code>·are·represented·by |
| 213 | <code·class="inline">36028797018963968.0</code>.</p><p>For·more·information·about·floats·and·issues·with·them·see:</p><ul><li><a·href="https://floating-point-gui.de/">What·Every·Programmer·Should·Know·About·Floating-Point·Arithmetic</a></li><li><a·href="https://0.30000000000000004.com/">0.30000000000000004.com/</a></li><li><a·href="https://docs.python.org/3/tutorial/floatingpoint.html">Floating·Point·Arithmetic:·Issues·and·Limitations</a></li></ul><p>If·you·need·to·work·with·exact·decimal·fractions,·for·instance·to·represent | 213 | <code·class="inline">36028797018963968.0</code>.</p><p>For·more·information·about·floats·and·issues·with·them·see:</p><ul><li><a·href="https://floating-point-gui.de/">What·Every·Programmer·Should·Know·About·Floating-Point·Arithmetic</a></li><li><a·href="https://0.30000000000000004.com/">0.30000000000000004.com/</a></li><li><a·href="https://docs.python.org/3/tutorial/floatingpoint.html">Floating·Point·Arithmetic:·Issues·and·Limitations</a></li></ul><p>If·you·need·to·work·with·exact·decimal·fractions,·for·instance·to·represent |
| 214 | money,·it·is·recommended·to·use·a·library·that·handles·that,·or·work·in | 214 | money,·it·is·recommended·to·use·a·library·that·handles·that,·or·work·in |
| 215 | cents·instead·of·dollars·or·euros·so·that·decimal·fractions·are·not·needed.</p><p>Also·note·that·Erlang's·floats·do·not·exactly·match·IEEE·754·floats, | 215 | cents·instead·of·dollars·or·euros·so·that·decimal·fractions·are·not·needed.</p><p>Also·note·that·Erlang's·floats·do·not·exactly·match·IEEE·754·floats, |
| 216 | in·that·neither·<em>Inf</em>·nor·<em>NaN</em>·are·supported·in·Erlang.·Any | 216 | in·that·neither·<em>Inf</em>·nor·<em>NaN</em>·are·supported·in·Erlang.·Any |
| Offset 244, 52 lines modified | Offset 244, 52 lines modified | ||
| 244 | by·eight·are·called·<em>binaries</em>.</p><p><em>Examples:</em></p><pre><code·class="text">1>·<<10,20>>. | 244 | by·eight·are·called·<em>binaries</em>.</p><p><em>Examples:</em></p><pre><code·class="text">1>·<<10,20>>. |
| 245 | <<10,20>> | 245 | <<10,20>> |
| 246 | 2>·<<"ABC">>. | 246 | 2>·<<"ABC">>. |
| 247 | <<"ABC">> | 247 | <<"ABC">> |
| 248 | 3>·<<1:1,0:1>>. | 248 | 3>·<<1:1,0:1>>. |
| 249 | <<2:2>></code></pre><p>The·<a·href="../../erts-16.0/doc/html/erlang.html#is_bitstring/1"><code·class="inline">is_bitstring/1</code></a>·BIF·tests·whether·a | 249 | <<2:2>></code></pre><p>The·<a·href="../../erts-16.0/doc/html/erlang.html#is_bitstring/1"><code·class="inline">is_bitstring/1</code></a>·BIF·tests·whether·a |
| 250 | term·is·a·bit·string,·and·the·<a·href="../../erts-16.0/doc/html/erlang.html#is_binary/1"><code·class="inline">is_binary/1</code></a> | 250 | term·is·a·bit·string,·and·the·<a·href="../../erts-16.0/doc/html/erlang.html#is_binary/1"><code·class="inline">is_binary/1</code></a> |
| 251 | BIF·tests·whether·a·term·is·a·binary.</p><p><em>Examples:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nf">is_bitstring</span><span·class="p"·data-group-id=" | 251 | BIF·tests·whether·a·term·is·a·binary.</p><p><em>Examples:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nf">is_bitstring</span><span·class="p"·data-group-id="7359305753-1">(</span><span·class="p"·data-group-id="7359305753-2"><<</span><span·class="mi">1</span><span·class="p">:</span><span·class="mi">1</span><span·class="p"·data-group-id="7359305753-2">>></span><span·class="p"·data-group-id="735930575[·...·truncated·by·diffoscope;·len:·1,·SHA:·4e07408562bedb8b60ce05c1decfe3ad16b72230967de01f640b7e4729b49fce·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 252 | </span><span·class="ss">true</span><span·class="gp·unselectable"> | 252 | </span><span·class="ss">true</span><span·class="gp·unselectable"> |
| 253 | 2>·</span><span·class="nf">is_binary</span><span·class="p"·data-group-id=" | 253 | 2>·</span><span·class="nf">is_binary</span><span·class="p"·data-group-id="7359305753-3">(</span><span·class="p"·data-group-id="7359305753-4"><<</span><span·class="mi">1</span><span·class="p">:</span><span·class="mi">1</span><span·class="p"·data-group-id="7359305753-4">>></span><span·class="p"·data-group-id="735930575[·...·truncated·by·diffoscope;·len:·1,·SHA:·4e07408562bedb8b60ce05c1decfe3ad16b72230967de01f640b7e4729b49fce·...·]-3">)</span><span·class="p">.</span><span·class="w"> |
| 254 | </span><span·class="ss">false</span><span·class="gp·unselectable"> | 254 | </span><span·class="ss">false</span><span·class="gp·unselectable"> |
| 255 | 3>·</span><span·class="nf">is_binary</span><span·class="p"·data-group-id=" | 255 | 3>·</span><span·class="nf">is_binary</span><span·class="p"·data-group-id="7359305753-5">(</span><span·class="p"·data-group-id="7359305753-6"><<</span><span·class="mi">42</span><span·class="p"·data-group-id="7359305753-6">>></span><span·class="p"·data-group-id="7359305753-5">)</span><span·class="p">.</span><span·class="w"> |
| 256 | </span><span·class="ss">true</span><span·class="w"> | 256 | </span><span·class="ss">true</span><span·class="w"> |
| 257 | </span></code></pre><p>For·more·examples,·see·<a·href="../../doc/system/bit_syntax.html">Programming·Examples</a>.</p><h2·id="reference"·class="section-heading"> | 257 | </span></code></pre><p>For·more·examples,·see·<a·href="../../doc/system/bit_syntax.html">Programming·Examples</a>.</p><h2·id="reference"·class="section-heading"> |
| 258 | ··<a·href="#reference"·class="hover-link"> | 258 | ··<a·href="#reference"·class="hover-link"> |
| 259 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 259 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 260 | ··</a> | 260 | ··</a> |
| 261 | ··<span·class="text">Reference</span> | 261 | ··<span·class="text">Reference</span> |
| 262 | </h2> | 262 | </h2> |
| 263 | <p>A·term·that·is·<a·href="../../doc/system/system_limits.html#unique_references">unique</a> | 263 | <p>A·term·that·is·<a·href="../../doc/system/system_limits.html#unique_references">unique</a> |
| 264 | among·connected·nodes.·A·reference·is·created·by·calling·the | 264 | among·connected·nodes.·A·reference·is·created·by·calling·the |
| 265 | <a·href="../../erts-16.0/doc/html/erlang.html#make_ref/0"><code·class="inline">make_ref/0</code></a>·BIF.·The | 265 | <a·href="../../erts-16.0/doc/html/erlang.html#make_ref/0"><code·class="inline">make_ref/0</code></a>·BIF.·The |
| 266 | <a·href="../../erts-16.0/doc/html/erlang.html#is_reference/1"><code·class="inline">is_reference/1</code></a>·BIF·tests·whether·a·term | 266 | <a·href="../../erts-16.0/doc/html/erlang.html#is_reference/1"><code·class="inline">is_reference/1</code></a>·BIF·tests·whether·a·term |
| 267 | is·a·reference.</p><p><em>Examples:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">Ref</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">make_ref</span><span·class="p"·data-group-id=" | 267 | is·a·reference.</p><p><em>Examples:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">Ref</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">make_ref</span><span·class="p"·data-group-id="9387298084-1">(</span><span·class="p"·data-group-id="9387298084-1">)</span><span·class="p">.</span><span·class="w"> |
| 268 | </span><span·class="p">#</span><span·class="n">Ref</span><span·class="o"><</span><span·class="mf">0.76482849</span><span·class="p">.</span><span·class="mf">3801088007.198204</span><span·class="o">></span><span·class="gp·unselectable"> | 268 | </span><span·class="p">#</span><span·class="n">Ref</span><span·class="o"><</span><span·class="mf">0.76482849</span><span·class="p">.</span><span·class="mf">3801088007.198204</span><span·class="o">></span><span·class="gp·unselectable"> |
| 269 | 2>·</span><span·class="nf">is_reference</span><span·class="p"·data-group-id=" | 269 | 2>·</span><span·class="nf">is_reference</span><span·class="p"·data-group-id="9387298084-2">(</span><span·class="n">Ref</span><span·class="p"·data-group-id="9387298084-2">)</span><span·class="p">.</span><span·class="w"> |
| 270 | </span><span·class="ss">true</span></code></pre><h2·id="fun"·class="section-heading"> | 270 | </span><span·class="ss">true</span></code></pre><h2·id="fun"·class="section-heading"> |
| 271 | ··<a·href="#fun"·class="hover-link"> | 271 | ··<a·href="#fun"·class="hover-link"> |
| 272 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 272 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 273 | ··</a> | 273 | ··</a> |
| 274 | ··<span·class="text">Fun</span> | 274 | ··<span·class="text">Fun</span> |
| 275 | </h2> | 275 | </h2> |
| 276 | <p>A·fun·is·a·functional·object.·Funs·make·it·possible·to·create·an·anonymous | 276 | <p>A·fun·is·a·functional·object.·Funs·make·it·possible·to·create·an·anonymous |
| 277 | function·and·pass·the·function·itself·—·not·its·name·—·as·argument·to·other | 277 | function·and·pass·the·function·itself·—·not·its·name·—·as·argument·to·other |
| 278 | functions.</p><p><em>Examples:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">Fun1</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="w">·</span><span·class="p"·data-group-id=" | 278 | functions.</p><p><em>Examples:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">Fun1</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="w">·</span><span·class="p"·data-group-id="6054059451-1">(</span><span·class="n">X</span><span·class="p"·data-group-id="6054059451-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">X</span><span·class="o">+</span><span·class="mi">1</span><span·class="w">·</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> |
| 279 | </span><span·class="p">#</span><span·class="n">Fun</span><span·class="o"><</span><span·class="ss">erl_eval</span><span·class="p">.</span><span·class="mf">6.39074546</span><span·class="o">></span><span·class="gp·unselectable"> | 279 | </span><span·class="p">#</span><span·class="n">Fun</span><span·class="o"><</span><span·class="ss">erl_eval</span><span·class="p">.</span><span·class="mf">6.39074546</span><span·class="o">></span><span·class="gp·unselectable"> |
| 280 | 2>·</span><span·class="n">Fun1</span><span·class="p"·data-group-id=" | 280 | 2>·</span><span·class="n">Fun1</span><span·class="p"·data-group-id="6054059451-2">(</span><span·class="mi">2</span><span·class="p"·data-group-id="6054059451-2">)</span><span·class="p">.</span><span·class="w"> |
| 281 | </span><span·class="mi">3</span></code></pre><p>The·<a·href="../../erts-16.0/doc/html/erlang.html#is_function/1"><code·class="inline">is_function/1</code></a>·and·<a·href="../../erts-16.0/doc/html/erlang.html#is_function/2"><code·class="inline">is_function/2</code></a> | 281 | </span><span·class="mi">3</span></code></pre><p>The·<a·href="../../erts-16.0/doc/html/erlang.html#is_function/1"><code·class="inline">is_function/1</code></a>·and·<a·href="../../erts-16.0/doc/html/erlang.html#is_function/2"><code·class="inline">is_function/2</code></a> |
| 282 | BIFs·tests·whether·a·term·is·a·fun.</p><p><em>Examples</em>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">F</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id=" | 282 | BIFs·tests·whether·a·term·is·a·fun.</p><p><em>Examples</em>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">F</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id="5524404033-1">(</span><span·class="p"·data-group-id="5524404033-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">ok</span><span·class="w">·</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> |
| 283 | </span><span·class="p">#</span><span·class="n">Fun</span><span·class="o"><</span><span·class="ss">erl_eval</span><span·class="p">.</span><span·class="mf">43.105768164</span><span·class="o">></span><span·class="gp·unselectable"> | 283 | </span><span·class="p">#</span><span·class="n">Fun</span><span·class="o"><</span><span·class="ss">erl_eval</span><span·class="p">.</span><span·class="mf">43.105768164</span><span·class="o">></span><span·class="gp·unselectable"> |
| 284 | 2>·</span><span·class="nf">is_function</span><span·class="p"·data-group-id=" | 284 | 2>·</span><span·class="nf">is_function</span><span·class="p"·data-group-id="5524404033-2">(</span><span·class="n">F</span><span·class="p"·data-group-id="5524404033-2">)</span><span·class="p">.</span><span·class="w"> |
| 285 | </span><span·class="ss">true</span><span·class="gp·unselectable"> | 285 | </span><span·class="ss">true</span><span·class="gp·unselectable"> |
| 286 | 3>·</span><span·class="nf">is_function</span><span·class="p"·data-group-id=" | 286 | 3>·</span><span·class="nf">is_function</span><span·class="p"·data-group-id="5524404033-3">(</span><span·class="n">F</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">0</span><span·class="p"·data-group-id="5524404033-3">)</span><span·class="p">.</span><span·class="w"> |
| 287 | </span><span·class="ss">true</span><span·class="gp·unselectable"> | 287 | </span><span·class="ss">true</span><span·class="gp·unselectable"> |
| 288 | 4>·</span><span·class="nf">is_function</span><span·class="p"·data-group-id=" | 288 | 4>·</span><span·class="nf">is_function</span><span·class="p"·data-group-id="5524404033-4">(</span><span·class="n">F</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">1</span><span·class="p"·data-group-id="5524404033-4">)</span><span·class="p">.</span><span·class="w"> |
| 289 | </span><span·class="ss">false</span></code></pre><p>Read·more·about·funs·in·<a·href="expressions.html#fun-expressions">Fun·Expressions</a>.·For·more | 289 | </span><span·class="ss">false</span></code></pre><p>Read·more·about·funs·in·<a·href="expressions.html#fun-expressions">Fun·Expressions</a>.·For·more |
| 290 | examples,·see·<a·href="../../doc/system/funs.html">Programming·Examples</a>.</p><h2·id="port-identifier"·class="section-heading"> | 290 | examples,·see·<a·href="../../doc/system/funs.html">Programming·Examples</a>.</p><h2·id="port-identifier"·class="section-heading"> |
| 291 | ··<a·href="#port-identifier"·class="hover-link"> | 291 | ··<a·href="#port-identifier"·class="hover-link"> |
| 292 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 292 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 293 | ··</a> | 293 | ··</a> |
| 294 | ··<span·class="text">Port·Identifier</span> | 294 | ··<span·class="text">Port·Identifier</span> |
| 295 | </h2> | 295 | </h2> |
| Offset 307, 94 lines modified | Offset 307, 94 lines modified | ||
| 307 | for·a·new·process·after·a·while.</p><p>The·BIF·<a·href="../../erts-16.0/doc/html/erlang.html#self/0"><code·class="inline">self/0</code></a>·returns·the·Pid·of·the·calling·process.·When | 307 | for·a·new·process·after·a·while.</p><p>The·BIF·<a·href="../../erts-16.0/doc/html/erlang.html#self/0"><code·class="inline">self/0</code></a>·returns·the·Pid·of·the·calling·process.·When |
| 308 | <a·href="ref_man_processes.html#process-creation">creating·a·new·process</a>,·the·parent | 308 | <a·href="ref_man_processes.html#process-creation">creating·a·new·process</a>,·the·parent |
| 309 | process·will·be·able·to·get·the·Pid·of·the·child·process·either·via·the·return | 309 | process·will·be·able·to·get·the·Pid·of·the·child·process·either·via·the·return |
| 310 | value,·as·is·the·case·when·calling·the·<a·href="../../erts-16.0/doc/html/erlang.html#spawn/3"><code·class="inline">spawn/3</code></a>·BIF,·or·via | 310 | value,·as·is·the·case·when·calling·the·<a·href="../../erts-16.0/doc/html/erlang.html#spawn/3"><code·class="inline">spawn/3</code></a>·BIF,·or·via |
| 311 | a·message,·which·is·the·case·when·calling·the | 311 | a·message,·which·is·the·case·when·calling·the |
| 312 | <a·href="../../erts-16.0/doc/html/erlang.html#spawn_request/5"><code·class="inline">spawn_request/5</code></a>·BIF.·A·Pid·is·typically·used·when | 312 | <a·href="../../erts-16.0/doc/html/erlang.html#spawn_request/5"><code·class="inline">spawn_request/5</code></a>·BIF.·A·Pid·is·typically·used·when |
| 313 | when·sending·a·process·a·<a·href="ref_man_processes.html#signals">signal</a>.·The | 313 | when·sending·a·process·a·<a·href="ref_man_processes.html#signals">signal</a>.·The |
| 314 | <a·href="../../erts-16.0/doc/html/erlang.html#is_pid/1"><code·class="inline">is_pid/1</code></a>·BIF·tests·whether·a·term·is·a·Pid.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 314 | <a·href="../../erts-16.0/doc/html/erlang.html#is_pid/1"><code·class="inline">is_pid/1</code></a>·BIF·tests·whether·a·term·is·a·Pid.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="1988473528-1">(</span><span·class="ss">m</span><span·class="p"·data-group-id="1988473528-1">)</span><span·class="p">.</span><span·class="w"> |
| 315 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 315 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="1988473528-2">(</span><span·class="p"·data-group-id="1988473528-3">[</span><span·class="ss">loop</span><span·class="p">/</span><span·class="mi">0</span><span·class="p"·data-group-id="1988473528-3">]</span><span·class="p"·data-group-id="1988473528-2">)</span><span·class="p">.</span><span·class="w"> |
| 316 | </span><span·class="nf">loop</span><span·class="p"·data-group-id=" | 316 | </span><span·class="nf">loop</span><span·class="p"·data-group-id="1988473528-4">(</span><span·class="p"·data-group-id="1988473528-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 317 | ····</span><span·class="k">receive</span><span·class="w"> | 317 | ····</span><span·class="k">receive</span><span·class="w"> |
| 318 | ········</span><span·class="ss">who_are_you</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 318 | ········</span><span·class="ss">who_are_you</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 319 | ············</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 319 | ············</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="1988473528-5">(</span><span·class="s">"I·am·</span><span·class="si">~p</span><span·class="si">~n</span><span·class="s">"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1988473528-6">[</span><span·class="nf">s[·...·truncated·by·diffoscope;·len:·210,·SHA:·f357c98de55d768add582e837b2ee78fff1f6513a064e69edb2aae869813909c·...·]-5">)</span><span·class="p">,</span><span·class="w"> |
| 320 | ············</span><span·class="nf">loop</span><span·class="p"·data-group-id=" | 320 | ············</span><span·class="nf">loop</span><span·class="p"·data-group-id="1988473528-8">(</span><span·class="p"·data-group-id="1988473528-8">)</span><span·class="w"> |
| 321 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> | 321 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> |
| 322 | </span><span·class="mi">1</span><span·class="o">></span><span·class="w">·</span><span·class="n">P</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">spawn</span><span·class="p"·data-group-id=" | 322 | </span><span·class="mi">1</span><span·class="o">></span><span·class="w">·</span><span·class="n">P</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">spawn</span><span·class="p"·data-group-id="1988473528-9">(</span><span·class="ss">m</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">loop</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1988473528-10">[</span><span·class="p"·data-group-id="[·...·truncated·by·diffoscope;·len:·64,·SHA:·99d08646a8c70e4d25ab0090c78ef5f49c20353d6c6ac65cafd1e03e9ab2399d·...·]-9">)</span><span·class="p">.</span><span·class="w"> |
| 323 | </span><span·class="o"><</span><span·class="mf">0.58</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="gp·unselectable"> | 323 | </span><span·class="o"><</span><span·class="mf">0.58</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="gp·unselectable"> |
| 324 | 2>·</span><span·class="n">P</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="ss">who_are_you</span><span·class="p">.</span><span·class="w"> | 324 | 2>·</span><span·class="n">P</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="ss">who_are_you</span><span·class="p">.</span><span·class="w"> |
| 325 | </span><span·class="n">I</span><span·class="w">·</span><span·class="ss">am</span><span·class="w">·</span><span·class="o"><</span><span·class="mf">0.58</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="w"> | 325 | </span><span·class="n">I</span><span·class="w">·</span><span·class="ss">am</span><span·class="w">·</span><span·class="o"><</span><span·class="mf">0.58</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="w"> |
| 326 | </span><span·class="ss">who_are_you</span></code></pre><p>Read·more·about·processes·in·<a·href="ref_man_processes.html">Processes</a>.</p><h2·id="tuple"·class="section-heading"> | 326 | </span><span·class="ss">who_are_you</span></code></pre><p>Read·more·about·processes·in·<a·href="ref_man_processes.html">Processes</a>.</p><h2·id="tuple"·class="section-heading"> |
| 327 | ··<a·href="#tuple"·class="hover-link"> | 327 | ··<a·href="#tuple"·class="hover-link"> |
| 328 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 328 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 329 | ··</a> | 329 | ··</a> |
| 330 | ··<span·class="text">Tuple</span> | 330 | ··<span·class="text">Tuple</span> |
| 331 | </h2> | 331 | </h2> |
| 332 | <p>A·tuple·is·a·compound·data·type·with·a·fixed·number·of·terms:</p><pre><code·class="text">{Term1,...,TermN}</code></pre><p>Each·term·<code·class="inline">Term</code>·in·the·tuple·is·called·an·<em>element</em>.·The·number·of·elements·is | 332 | <p>A·tuple·is·a·compound·data·type·with·a·fixed·number·of·terms:</p><pre><code·class="text">{Term1,...,TermN}</code></pre><p>Each·term·<code·class="inline">Term</code>·in·the·tuple·is·called·an·<em>element</em>.·The·number·of·elements·is |
| 333 | said·to·be·the·<em>size</em>·of·the·tuple.</p><p>There·exists·a·number·of·BIFs·to·manipulate·tuples.</p><p><em>Examples:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">P</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="2 | 333 | said·to·be·the·<em>size</em>·of·the·tuple.</p><p>There·exists·a·number·of·BIFs·to·manipulate·tuples.</p><p><em>Examples:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">P</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="2917152006-1">{</span><span·class="ss">adam</span><span·class="p">,</span><span·class="mi">24</span><span·class="p">,</span><span·class="p"·data-group-id="2917152006-2">{</span><span·class="ss">july</span><span·class="p">,</span><span·class="mi">29</span><s[·...·truncated·by·diffoscope;·len:·92,·SHA:·398770926bc528cd3d0181f2382ac1256e5ce91978d240ae0be8bf1afc0264cf·...·]-1">}</span><span·class="p">.</span><span·class="w"> |
| 334 | </span><span·class="p"·data-group-id="2 | 334 | </span><span·class="p"·data-group-id="2917152006-3">{</span><span·class="ss">adam</span><span·class="p">,</span><span·class="mi">24</span><span·class="p">,</span><span·class="p"·data-group-id="2917152006-4">{</span><span·class="ss">july</span><span·class="p">,</span><span·class="mi">29</span><s[·...·truncated·by·diffoscope;·len:·92,·SHA:·70049abb7a75a8dbea988532b67500909add282e8a546d980496b8ac6fcb51a1·...·]-3">}</span><span·class="gp·unselectable"> |
| 335 | 2>·</span><span·class="nf">element</span><span·class="p"·data-group-id="2 | 335 | 2>·</span><span·class="nf">element</span><span·class="p"·data-group-id="2917152006-5">(</span><span·class="mi">1</span><span·class="p">,</span><span·class="n">P</span><span·class="p"·data-group-id="2917152006-5">)</span><span·class="p">.</span><span·class="w"> |
| 336 | </span><span·class="ss">adam</span><span·class="gp·unselectable"> | 336 | </span><span·class="ss">adam</span><span·class="gp·unselectable"> |
| 337 | 3>·</span><span·class="nf">element</span><span·class="p"·data-group-id="2 | 337 | 3>·</span><span·class="nf">element</span><span·class="p"·data-group-id="2917152006-6">(</span><span·class="mi">3</span><span·class="p">,</span><span·class="n">P</span><span·class="p"·data-group-id="2917152006-6">)</span><span·class="p">.</span><span·class="w"> |
| 338 | </span><span·class="p"·data-group-id="2 | 338 | </span><span·class="p"·data-group-id="2917152006-7">{</span><span·class="ss">july</span><span·class="p">,</span><span·class="mi">29</span><span·class="p"·data-group-id="2917152006-7">}</span><span·class="gp·unselectable"> |
| 339 | 4>·</span><span·class="n">P2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">setelement</span><span·class="p"·data-group-id="2 | 339 | 4>·</span><span·class="n">P2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">setelement</span><span·class="p"·data-group-id="2917152006-8">(</span><span·class="mi">2</span><span·class="p">,</span><span·class="n">P</span><span·class="p">,</span><span·class="mi">25</span><span·class="p"·data-group-id="2917152006-8">)</span><span·class="p">.</span><span·class="w"> |
| 340 | </span><span·class="p"·data-group-id="2 | 340 | </span><span·class="p"·data-group-id="2917152006-9">{</span><span·class="ss">adam</span><span·class="p">,</span><span·class="mi">25</span><span·class="p">,</span><span·class="p"·data-group-id="2917152006-10">{</span><span·class="ss">july</span><span·class="p">,</span><span·class="mi">29</span><[·...·truncated·by·diffoscope;·len:·94,·SHA:·ff33620d3204684ece79bb5a8db6e47e9f44ce35d26f6e189b607ba88359d27f·...·]-9">}</span><span·class="gp·unselectable"> |
| 341 | 5>·</span><span·class="nf">tuple_size</span><span·class="p"·data-group-id="2 | 341 | 5>·</span><span·class="nf">tuple_size</span><span·class="p"·data-group-id="2917152006-11">(</span><span·class="n">P</span><span·class="p"·data-group-id="2917152006-11">)</span><span·class="p">.</span><span·class="w"> |
| 342 | </span><span·class="mi">3</span><span·class="gp·unselectable"> | 342 | </span><span·class="mi">3</span><span·class="gp·unselectable"> |
| 343 | 6>·</span><span·class="nf">tuple_size</span><span·class="p"·data-group-id="2 | 343 | 6>·</span><span·class="nf">tuple_size</span><span·class="p"·data-group-id="2917152006-12">(</span><span·class="p"·data-group-id="2917152006-13">{</span><span·class="p"·data-group-id="2917152006-13">}</span><span·class="p"·data-group-id="2917152006-12">)</span><span·class="p">.</span><span·class="w"> |
| 344 | </span><span·class="mi">0</span><span·class="gp·unselectable"> | 344 | </span><span·class="mi">0</span><span·class="gp·unselectable"> |
| 345 | 7>·</span><span·class="nf">is_tuple</span><span·class="p"·data-group-id="2 | 345 | 7>·</span><span·class="nf">is_tuple</span><span·class="p"·data-group-id="2917152006-14">(</span><span·class="p"·data-group-id="2917152006-15">{</span><span·class="ss">a</span><span·class="p">,</span><span·class="ss">b</span><span·class="p">,</span><span·class="ss">c</span><span·class="p"·data-group-id="2917152006-15">}</span><sp[·...·truncated·by·diffoscope;·len:·38,·SHA:·61bdeef06430ad696502fb3015792409be9ab8e3721a678399802393cc7b7bb4·...·]-14">)</span><span·class="p">.</span><span·class="w"> |
| 346 | </span><span·class="ss">true</span></code></pre><h2·id="map"·class="section-heading"> | 346 | </span><span·class="ss">true</span></code></pre><h2·id="map"·class="section-heading"> |
| 347 | ··<a·href="#map"·class="hover-link"> | 347 | ··<a·href="#map"·class="hover-link"> |
| 348 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 348 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 349 | ··</a> | 349 | ··</a> |
| 350 | ··<span·class="text">Map</span> | 350 | ··<span·class="text">Map</span> |
| 351 | </h2> | 351 | </h2> |
| 352 | <p>A·map·is·a·compound·data·type·with·a·variable·number·of·key-value·associations:</p><pre><code·class="text">#{Key1·=>·Value1,·...,·KeyN·=>·ValueN}</code></pre><p>Each·key-value·association·in·the·map·is·called·an·<em>association·pair</em>.·The·key | 352 | <p>A·map·is·a·compound·data·type·with·a·variable·number·of·key-value·associations:</p><pre><code·class="text">#{Key1·=>·Value1,·...,·KeyN·=>·ValueN}</code></pre><p>Each·key-value·association·in·the·map·is·called·an·<em>association·pair</em>.·The·key |
| 353 | and·value·parts·of·the·pair·are·called·<em>elements</em>.·The·number·of·association | 353 | and·value·parts·of·the·pair·are·called·<em>elements</em>.·The·number·of·association |
| 354 | pairs·is·said·to·be·the·<em>size</em>·of·the·map.</p><p>There·exists·a·number·of·BIFs·to·manipulate·maps.</p><p><em>Examples:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">M1</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 354 | pairs·is·said·to·be·the·<em>size</em>·of·the·map.</p><p>There·exists·a·number·of·BIFs·to·manipulate·maps.</p><p><em>Examples:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">M1</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="5746769111-1">#{</span><span·class="ss">name</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">adam</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">age</span><span·class="w">·</span><s[·...·truncated·by·diffoscope;·len:·453,·SHA:·50792561feac8a87617afe22163c99dc26244b7e3560562bec06cf622a0ea23b·...·]-1">}</span><span·class="p">.</span><span·class="w"> |
| 355 | </span><span·class="p"·data-group-id=" | 355 | </span><span·class="p"·data-group-id="5746769111-3">#{</span><span·class="ss">age</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="mi">24</span><span·class="p">,</span><span·class="ss">date</span><span·class="w">·</span><span·class="p">=></span>[·...·truncated·by·diffoscope;·len:·405,·SHA:·abb62f7f45e99c80bd0a78e8bb5347e80bb2d6cefbfc3c89f9f3db5f890473ae·...·]-3">}</span><span·class="gp·unselectable"> |
| 356 | 2>·</span><span·class="nc">maps</span><span·class="p">:</span><span·class="nf">get</span><span·class="p"·data-group-id=" | 356 | 2>·</span><span·class="nc">maps</span><span·class="p">:</span><span·class="nf">get</span><span·class="p"·data-group-id="5746769111-5">(</span><span·class="ss">name</span><span·class="p">,</span><span·class="w">·</span><span·class="n">M1</span><span·class="p"·data-group-id="5746769111-5">)</span><span·class="p">.</span><span·class="w"> |
| 357 | </span><span·class="ss">adam</span><span·class="gp·unselectable"> | 357 | </span><span·class="ss">adam</span><span·class="gp·unselectable"> |
| 358 | 3>·</span><span·class="nc">maps</span><span·class="p">:</span><span·class="nf">get</span><span·class="p"·data-group-id=" | 358 | 3>·</span><span·class="nc">maps</span><span·class="p">:</span><span·class="nf">get</span><span·class="p"·data-group-id="5746769111-6">(</span><span·class="ss">date</span><span·class="p">,</span><span·class="w">·</span><span·class="n">M1</span><span·class="p"·data-group-id="5746769111-6">)</span><span·class="p">.</span><span·class="w"> |
| 359 | </span><span·class="p"·data-group-id=" | 359 | </span><span·class="p"·data-group-id="5746769111-7">{</span><span·class="ss">july</span><span·class="p">,</span><span·class="mi">29</span><span·class="p"·data-group-id="5746769111-7">}</span><span·class="gp·unselectable"> |
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| 331 | ······<p·class="built-using"> | 331 | ······<p·class="built-using"> |
| 332 | ········Built·using | 332 | ········Built·using |
| 333 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 333 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 334 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 334 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 335 | ······</p> | 335 | ······</p> |
| 336 | <p>Copyright·©·1996-202 | 336 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 337 | ····</footer> | 337 | ····</footer> |
| 338 | ··</div> | 338 | ··</div> |
| 339 | </main> | 339 | </main> |
| 340 | </div> | 340 | </div> |
| 341 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 341 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 342 | ··<script> | 342 | ··<script> |
| 343 | ··let·initialized·=·false; | 343 | ··let·initialized·=·false; |
| Offset 152, 135 lines modified | Offset 152, 135 lines modified | ||
| 152 | the·code·for·a·process·in·a·generic·part·(a·behaviour·module)·and·a·specific | 152 | the·code·for·a·process·in·a·generic·part·(a·behaviour·module)·and·a·specific |
| 153 | part·(a·<em>callback·module</em>).</p><p>The·behaviour·module·is·part·of·Erlang/OTP.·To·implement·a·process·such·as·a | 153 | part·(a·<em>callback·module</em>).</p><p>The·behaviour·module·is·part·of·Erlang/OTP.·To·implement·a·process·such·as·a |
| 154 | supervisor,·the·user·only·needs·to·implement·the·callback·module,·which·is·to | 154 | supervisor,·the·user·only·needs·to·implement·the·callback·module,·which·is·to |
| 155 | export·a·pre-defined·set·of·functions,·the·<em>callback·functions</em>.</p><p>The·following·example·illustrate·how·code·can·be·divided·into·a·generic·and·a | 155 | export·a·pre-defined·set·of·functions,·the·<em>callback·functions</em>.</p><p>The·following·example·illustrate·how·code·can·be·divided·into·a·generic·and·a |
| 156 | specific·part.·Consider·the·following·code·(written·in·plain·Erlang)·for·a | 156 | specific·part.·Consider·the·following·code·(written·in·plain·Erlang)·for·a |
| 157 | simple·server,·which·keeps·track·of·a·number·of·"channels".·Other·processes·can | 157 | simple·server,·which·keeps·track·of·a·number·of·"channels".·Other·processes·can |
| 158 | allocate·and·free·the·channels·by·calling·the·functions·<code·class="inline">alloc/0</code>·and·<code·class="inline">free/1</code>, | 158 | allocate·and·free·the·channels·by·calling·the·functions·<code·class="inline">alloc/0</code>·and·<code·class="inline">free/1</code>, |
| 159 | respectively.</p><p><a·href=""·id="ch1"></a></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="6327487543-1">(</span><span·class="ss">ch1</span><span·class="p"·data-group-id="6327487543-1">)</span><span·class="p">.</span><span·class="w"> | ||
| 160 | 159 | respectively.</p><p><a·href=""·id="ch1"></a></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="6868588214-1">(</span><span·class="ss">ch1</span><span·class="p"·data-group[·...·truncated·by·diffoscope;·len:·17,·SHA:·b1c5b26fb1872bd332ee2e33db76adf48b9e8d157e21608c5538ab39cf6f50a7·...·]">)</span><span·class="p">.</span><span·class="w"> | |
| 160 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="6868588214-2">(</span><span·class="p"·data-group-id="6868588214-3">[</span><span·class="ss">start</span><span·class="p">/</span><span·class="mi">0</span><span·class="p"·data-group-id="6868588214-3">]</span><span·class="p"·data-group-id="6868588214-2">)</span><span·class="p">.</span><span·class="w"> | ||
| 161 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="6 | 161 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="6868588214-4">(</span><span·class="p"·data-group-id="6868588214-5">[</span><span·class="ss">alloc</span><span·class="p">/</span><span·class="mi">0</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">free</span><span·class="p">/</span><spa[·...·truncated·by·diffoscope;·len:·115,·SHA:·248e1da3aedbc9a640a53e5ce0f34264b4ea9ce7d8bc713e73e318c9fe5310fd·...·]-4">)</span><span·class="p">.</span><span·class="w"> |
| 162 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="6 | 162 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="6868588214-6">(</span><span·class="p"·data-group-id="6868588214-7">[</span><span·class="ss">init</span><span·class="p">/</span><span·class="mi">0</span><span·class="p"·data-group-id="6868588214-7">]</span><span·class="p"·data-group-id="6868588214-6">)</span><span·class="p">.</span><span·class="w"> |
| 163 | </span><span·class="nf">start</span><span·class="p"·data-group-id="6 | 163 | </span><span·class="nf">start</span><span·class="p"·data-group-id="6868588214-8">(</span><span·class="p"·data-group-id="6868588214-8">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 164 | ····</span><span·class="nf">spawn</span><span·class="p"·data-group-id="6 | 164 | ····</span><span·class="nf">spawn</span><span·class="p"·data-group-id="6868588214-9">(</span><span·class="ss">ch1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">init</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6868588214-10">[</span><span·class="p"·data-group-id=[·...·truncated·by·diffoscope;·len:·65,·SHA:·25845a44e8859542d6c95e8a6c51ddf878353bb6d85cf40d037cbcf35aeaad9b·...·]-9">)</span><span·class="p">.</span><span·class="w"> |
| 165 | </span><span·class="nf">alloc</span><span·class="p"·data-group-id="6 | 165 | </span><span·class="nf">alloc</span><span·class="p"·data-group-id="6868588214-11">(</span><span·class="p"·data-group-id="6868588214-11">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 166 | ····</span><span·class="ss">ch1</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id="6 | 166 | ····</span><span·class="ss">ch1</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id="6868588214-12">{</span><span·class="nf">self</span><span·class="p"·data-group-id="6868588214-13">(</span><span·class="p"·data-group-id="6868588214-13">)</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">alloc</span><span·class="p"·data-[·...·truncated·by·diffoscope;·len:·20,·SHA:·9adb0cfa39ddec41cd03ddfb44d359af182caea5df51bb505e50957b51ed6355·...·]-12">}</span><span·class="p">,</span><span·class="w"> |
| 167 | ····</span><span·class="k">receive</span><span·class="w"> | 167 | ····</span><span·class="k">receive</span><span·class="w"> |
| 168 | ········</span><span·class="p"·data-group-id="6 | 168 | ········</span><span·class="p"·data-group-id="6868588214-14">{</span><span·class="ss">ch1</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Res</span><span·class="p"·data-group-id="6868588214-14">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 169 | ············</span><span·class="n">Res</span><span·class="w"> | 169 | ············</span><span·class="n">Res</span><span·class="w"> |
| 170 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> | 170 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> |
| 171 | </span><span·class="nf">free</span><span·class="p"·data-group-id="6 | 171 | </span><span·class="nf">free</span><span·class="p"·data-group-id="6868588214-15">(</span><span·class="n">Ch</span><span·class="p"·data-group-id="6868588214-15">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 172 | ····</span><span·class="ss">ch1</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id="6 | 172 | ····</span><span·class="ss">ch1</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id="6868588214-16">{</span><span·class="ss">free</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Ch</span><span·class="p"·data-group-id="6868588214-16">}</span><span·class="p">,</span><span·class="w"> |
| 173 | ····</span><span·class="ss">ok</span><span·class="p">.</span><span·class="w"> | 173 | ····</span><span·class="ss">ok</span><span·class="p">.</span><span·class="w"> |
| 174 | </span><span·class="nf">init</span><span·class="p"·data-group-id="6 | 174 | </span><span·class="nf">init</span><span·class="p"·data-group-id="6868588214-17">(</span><span·class="p"·data-group-id="6868588214-17">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 175 | ····</span><span·class="nf">register</span><span·class="p"·data-group-id="6 | 175 | ····</span><span·class="nf">register</span><span·class="p"·data-group-id="6868588214-18">(</span><span·class="ss">ch1</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">self</span><span·class="p"·data-group-id="6868588214-19">(</span><span·class="p"·data-group-id="6868588214-19">)</span><span·class="p"·data-gr[·...·truncated·by·diffoscope;·len:·18,·SHA:·c56211cf0b67eb4a96aae75f81be9ba528249fad097f42285d8e06df00daa97c·...·]-18">)</span><span·class="p">,</span><span·class="w"> |
| 176 | ····</span><span·class="n">Chs</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">channels</span><span·class="p"·data-group-id="6 | 176 | ····</span><span·class="n">Chs</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">channels</span><span·class="p"·data-group-id="6868588214-20">(</span><span·class="p"·data-group-id="6868588214-20">)</span><span·class="p">,</span><span·class="w"> |
| 177 | ····</span><span·class="nf">loop</span><span·class="p"·data-group-id="6 | 177 | ····</span><span·class="nf">loop</span><span·class="p"·data-group-id="6868588214-21">(</span><span·class="n">Chs</span><span·class="p"·data-group-id="6868588214-21">)</span><span·class="p">.</span><span·class="w"> |
| 178 | </span><span·class="nf">loop</span><span·class="p"·data-group-id="6 | 178 | </span><span·class="nf">loop</span><span·class="p"·data-group-id="6868588214-22">(</span><span·class="n">Chs</span><span·class="p"·data-group-id="6868588214-22">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 179 | ····</span><span·class="k">receive</span><span·class="w"> | 179 | ····</span><span·class="k">receive</span><span·class="w"> |
| 180 | ········</span><span·class="p"·data-group-id="6 | 180 | ········</span><span·class="p"·data-group-id="6868588214-23">{</span><span·class="n">From</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">alloc</span><span·class="p"·data-group-id="6868588214-23">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 181 | ············</span><span·class="p"·data-group-id="6 | 181 | ············</span><span·class="p"·data-group-id="6868588214-24">{</span><span·class="n">Ch</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Chs2</span><span·class="p"·data-group-id="6868588214-24">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·cl[·...·truncated·by·diffoscope;·len:·142,·SHA:·048062d3a818ea0464b04d990888857110b4b7ccd9bc5c60386e2b42b4b0291e·...·]-25">)</span><span·class="p">,</span><span·class="w"> |
| 182 | ············</span><span·class="n">From</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id="6 | 182 | ············</span><span·class="n">From</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id="6868588214-26">{</span><span·class="ss">ch1</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Ch</span><span·class="p"·data-group-id="6868588214-26">}</span><span·class="p">,</span><span·class="w"> |
| 183 | ············</span><span·class="nf">loop</span><span·class="p"·data-group-id="6 | 183 | ············</span><span·class="nf">loop</span><span·class="p"·data-group-id="6868588214-27">(</span><span·class="n">Chs2</span><span·class="p"·data-group-id="6868588214-27">)</span><span·class="p">;</span><span·class="w"> |
| 184 | ········</span><span·class="p"·data-group-id="6 | 184 | ········</span><span·class="p"·data-group-id="6868588214-28">{</span><span·class="ss">free</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Ch</span><span·class="p"·data-group-id="6868588214-28">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 185 | ············</span><span·class="n">Chs2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">free</span><span·class="p"·data-group-id="6 | 185 | ············</span><span·class="n">Chs2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">free</span><span·class="p"·data-group-id="6868588214-29">(</span><span·class="n">Ch</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Chs</span><span·class="p"·data-group-id="6868588214-29">)</span><span·class="p">,</span><span·class="w"> |
| 186 | ············</span><span·class="nf">loop</span><span·class="p"·data-group-id="6 | 186 | ············</span><span·class="nf">loop</span><span·class="p"·data-group-id="6868588214-30">(</span><span·class="n">Chs2</span><span·class="p"·data-group-id="6868588214-30">)</span><span·class="w"> |
| 187 | ····</span><span·class="k">end</span><span·class="p">.</span></code></pre><p>The·code·for·the·server·can·be·rewritten·into·a·generic·part·<code·class="inline">server.erl</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 187 | ····</span><span·class="k">end</span><span·class="p">.</span></code></pre><p>The·code·for·the·server·can·be·rewritten·into·a·generic·part·<code·class="inline">server.erl</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="4289962505-1">(</span><span·class="ss">server</span><span·class="p"·data-group-id="4289962505-1">)</span><span·class="p">.</span><span·class="w"> |
| 188 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 188 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="4289962505-2">(</span><span·class="p"·data-group-id="4289962505-3">[</span><span·class="ss">start</span><span·class="p">/</span><span·class="mi">1</span><span·class="p"·data-group-id="4289962505-3">]</span><span·class="p"·data-group-id="4289962505-2">)</span><span·class="p">.</span><span·class="w"> |
| 189 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 189 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="4289962505-4">(</span><span·class="p"·data-group-id="4289962505-5">[</span><span·class="ss">call</span><span·class="p">/</span><span·class="mi">2</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">cast</span><span·class="p">/</span><spa[·...·truncated·by·diffoscope;·len:·115,·SHA:·1cfff0023f2f0ce6ec2fc2f7f529b56ebeaf254bdaa111c06afb69ab6334c80a·...·]-4">)</span><span·class="p">.</span><span·class="w"> |
| 190 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 190 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="4289962505-6">(</span><span·class="p"·data-group-id="4289962505-7">[</span><span·class="ss">init</span><span·class="p">/</span><span·class="mi">1</span><span·class="p"·data-group-id="4289962505-7">]</span><span·class="p"·data-group-id="4289962505-6">)</span><span·class="p">.</span><span·class="w"> |
| 191 | </span><span·class="nf">start</span><span·class="p"·data-group-id=" | 191 | </span><span·class="nf">start</span><span·class="p"·data-group-id="4289962505-8">(</span><span·class="n">Mod</span><span·class="p"·data-group-id="4289962505-8">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 192 | ····</span><span·class="nf">spawn</span><span·class="p"·data-group-id=" | 192 | ····</span><span·class="nf">spawn</span><span·class="p"·data-group-id="4289962505-9">(</span><span·class="ss">server</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">init</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4289962505-10">[</span><span·class="n">Mod</span>[·...·truncated·by·diffoscope;·len:·95,·SHA:·be5f632e4d85acd4b7fb7f346e586fd4240b631baa144cde6bd63a7529763703·...·]-9">)</span><span·class="p">.</span><span·class="w"> |
| 193 | </span><span·class="nf">call</span><span·class="p"·data-group-id=" | 193 | </span><span·class="nf">call</span><span·class="p"·data-group-id="4289962505-11">(</span><span·class="n">Name</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Req</span><span·class="p"·data-group-id="4289962505-11">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 194 | ····</span><span·class="n">Name</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id=" | 194 | ····</span><span·class="n">Name</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id="4289962505-12">{</span><span·class="ss">call</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">self</span><span·class="p"·data-group-id="4289962505-13">(</span><span·class="p"·data-group-id="4289962505-13">)</span><span·class="p">,</sp[·...·truncated·by·diffoscope;·len:·94,·SHA:·d5b2ac0592b44b409953f65b2d10ab6e18d8c24c3f9876dc207afd006d7e95a3·...·]-12">}</span><span·class="p">,</span><span·class="w"> |
| 195 | ····</span><span·class="k">receive</span><span·class="w"> | 195 | ····</span><span·class="k">receive</span><span·class="w"> |
| 196 | ········</span><span·class="p"·data-group-id=" | 196 | ········</span><span·class="p"·data-group-id="4289962505-14">{</span><span·class="n">Name</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Res</span><span·class="p"·data-group-id="4289962505-14">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 197 | ············</span><span·class="n">Res</span><span·class="w"> | 197 | ············</span><span·class="n">Res</span><span·class="w"> |
| 198 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> | 198 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> |
| 199 | </span><span·class="nf">cast</span><span·class="p"·data-group-id=" | 199 | </span><span·class="nf">cast</span><span·class="p"·data-group-id="4289962505-15">(</span><span·class="n">Name</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Req</span><span·class="p"·data-group-id="4289962505-15">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 200 | ····</span><span·class="n">Name</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id=" | 200 | ····</span><span·class="n">Name</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id="4289962505-16">{</span><span·class="ss">cast</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Req</span><span·class="p"·data-group-id="4289962505-16">}</span><span·class="p">,</span><span·class="w"> |
| 201 | ····</span><span·class="ss">ok</span><span·class="p">.</span><span·class="w"> | 201 | ····</span><span·class="ss">ok</span><span·class="p">.</span><span·class="w"> |
| 202 | </span><span·class="nf">init</span><span·class="p"·data-group-id=" | 202 | </span><span·class="nf">init</span><span·class="p"·data-group-id="4289962505-17">(</span><span·class="n">Mod</span><span·class="p"·data-group-id="4289962505-17">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 203 | ····</span><span·class="nf">register</span><span·class="p"·data-group-id=" | 203 | ····</span><span·class="nf">register</span><span·class="p"·data-group-id="4289962505-18">(</span><span·class="n">Mod</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">self</span><span·class="p"·data-group-id="4289962505-19">(</span><span·class="p"·data-group-id="4289962505-19">)</span><span·class="p"·data-gr[·...·truncated·by·diffoscope;·len:·18,·SHA:·da7f2d99fe9e85b15903e316af04343dcb26a116ae30f99b58dbd05f4215b35b·...·]-18">)</span><span·class="p">,</span><span·class="w"> |
| 204 | ····</span><span·class="n">State</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">Mod</span><span·class="p">:</span><span·class="nf">init</span><span·class="p"·data-group-id=" | 204 | ····</span><span·class="n">State</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">Mod</span><span·class="p">:</span><span·class="nf">init</span><span·class="p"·data-group-id="4289962505-20">(</span><span·class="p"·data-group-id="4289962505-20">)</span><span·class="p">,</span><span·class="w"> |
| 205 | ····</span><span·class="nf">loop</span><span·class="p"·data-group-id=" | 205 | ····</span><span·class="nf">loop</span><span·class="p"·data-group-id="4289962505-21">(</span><span·class="n">Mod</span><span·class="p">,</span><span·class="w">·</span><span·class="n">State</span><span·class="p"·data-group-id="4289962505-21">)</span><span·class="p">.</span><span·class="w"> |
| 206 | </span><span·class="nf">loop</span><span·class="p"·data-group-id=" | 206 | </span><span·class="nf">loop</span><span·class="p"·data-group-id="4289962505-22">(</span><span·class="n">Mod</span><span·class="p">,</span><span·class="w">·</span><span·class="n">State</span><span·class="p"·data-group-id="4289962505-22">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 207 | ····</span><span·class="k">receive</span><span·class="w"> | 207 | ····</span><span·class="k">receive</span><span·class="w"> |
| 208 | ········</span><span·class="p"·data-group-id=" | 208 | ········</span><span·class="p"·data-group-id="4289962505-23">{</span><span·class="ss">call</span><span·class="p">,</span><span·class="w">·</span><span·class="n">From</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Req</span><span·class="p"·data-group-id="4289962505-23">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 209 | ············</span><span·class="p"·data-group-id=" | 209 | ············</span><span·class="p"·data-group-id="4289962505-24">{</span><span·class="n">Res</span><span·class="p">,</span><span·class="w">·</span><span·class="n">State2</span><span·class="p"·data-group-id="4289962505-24">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><spa[·...·truncated·by·diffoscope;·len:·278,·SHA:·f26a6ee8011b4933d569a892cf7f7f4b945a39bd85a88076ec34384157cdc53d·...·]-25">)</span><span·class="p">,</span><span·class="w"> |
| 210 | ············</span><span·class="n">From</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id=" | 210 | ············</span><span·class="n">From</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id="4289962505-26">{</span><span·class="n">Mod</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Res</span><span·class="p"·data-group-id="4289962505-26">}</span><span·class="p">,</span><span·class="w"> |
| 211 | ············</span><span·class="nf">loop</span><span·class="p"·data-group-id=" | 211 | ············</span><span·class="nf">loop</span><span·class="p"·data-group-id="4289962505-27">(</span><span·class="n">Mod</span><span·class="p">,</span><span·class="w">·</span><span·class="n">State2</span><span·class="p"·data-group-id="4289962505-27">)</span><span·class="p">;</span><span·class="w"> |
| 212 | ········</span><span·class="p"·data-group-id=" | 212 | ········</span><span·class="p"·data-group-id="4289962505-28">{</span><span·class="ss">cast</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Req</span><span·class="p"·data-group-id="4289962505-28">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 213 | ············</span><span·class="n">State2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">Mod</span><span·class="p">:</span><span·class="nf">handle_cast</span><span·class="p"·data-group-id=" | 213 | ············</span><span·class="n">State2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">Mod</span><span·class="p">:</span><span·class="nf">handle_cast</span><span·class="p"·data-group-id="4289962505-29">(</span><span·class="n">Req</span><span·class="p">,</span><span·class="w">·</span><span·class="n">State</span><span·class="p"·data-group-id="4289962505-29">)</span><span·class="p">,</span><span·class="w"> |
| 214 | ············</span><span·class="nf">loop</span><span·class="p"·data-group-id=" | 214 | ············</span><span·class="nf">loop</span><span·class="p"·data-group-id="4289962505-30">(</span><span·class="n">Mod</span><span·class="p">,</span><span·class="w">·</span><span·class="n">State2</span><span·class="p"·data-group-id="4289962505-30">)</span><span·class="w"> |
| 215 | ····</span><span·class="k">end</span><span·class="p">.</span></code></pre><p>And·a·callback·module·<code·class="inline">ch2.erl</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 215 | ····</span><span·class="k">end</span><span·class="p">.</span></code></pre><p>And·a·callback·module·<code·class="inline">ch2.erl</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="1944779897-1">(</span><span·class="ss">ch2</span><span·class="p"·data-group-id="1944779897-1">)</span><span·class="p">.</span><span·class="w"> |
| 216 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 216 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="1944779897-2">(</span><span·class="p"·data-group-id="1944779897-3">[</span><span·class="ss">start</span><span·class="p">/</span><span·class="mi">0</span><span·class="p"·data-group-id="1944779897-3">]</span><span·class="p"·data-group-id="1944779897-2">)</span><span·class="p">.</span><span·class="w"> |
| 217 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 217 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="1944779897-4">(</span><span·class="p"·data-group-id="1944779897-5">[</span><span·class="ss">alloc</span><span·class="p">/</span><span·class="mi">0</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">free</span><span·class="p">/</span><sp[·...·truncated·by·diffoscope;·len:·116,·SHA:·4f949bd86311f0644ab187021176be403309dc16e9ba13c98bc27f601c114c39·...·]-4">)</span><span·class="p">.</span><span·class="w"> |
| 218 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 218 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="1944779897-6">(</span><span·class="p"·data-group-id="1944779897-7">[</span><span·class="ss">init</span><span·class="p">/</span><span·class="mi">0</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">handle_call</span><span·class="p">/</sp[·...·truncated·by·diffoscope;·len:·254,·SHA:·9c8fec61265affcce3a569d8a484f98915fedd310354b25811b90b845febabd9·...·]-6">)</span><span·class="p">.</span><span·class="w"> |
| 219 | </span><span·class="nf">start</span><span·class="p"·data-group-id=" | 219 | </span><span·class="nf">start</span><span·class="p"·data-group-id="1944779897-8">(</span><span·class="p"·data-group-id="1944779897-8">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 220 | ····</span><span·class="nc">server</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id=" | 220 | ····</span><span·class="nc">server</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id="1944779897-9">(</span><span·class="ss">ch2</span><span·class="p"·data-group-id="1944779897-9">)</span><span·class="p">.</span><span·class="w"> |
| 221 | </span><span·class="nf">alloc</span><span·class="p"·data-group-id=" | 221 | </span><span·class="nf">alloc</span><span·class="p"·data-group-id="1944779897-10">(</span><span·class="p"·data-group-id="1944779897-10">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 222 | ····</span><span·class="nc">server</span><span·class="p">:</span><span·class="nf">call</span><span·class="p"·data-group-id=" | 222 | ····</span><span·class="nc">server</span><span·class="p">:</span><span·class="nf">call</span><span·class="p"·data-group-id="1944779897-11">(</span><span·class="ss">ch2</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">alloc</span><span·class="p"·data-group-id="1944779897-11">)</span><span·class="p">.</span><span·class="w"> |
| 223 | </span><span·class="nf">free</span><span·class="p"·data-group-id=" | 223 | </span><span·class="nf">free</span><span·class="p"·data-group-id="1944779897-12">(</span><span·class="n">Ch</span><span·class="p"·data-group-id="1944779897-12">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 224 | ····</span><span·class="nc">server</span><span·class="p">:</span><span·class="nf">cast</span><span·class="p"·data-group-id=" | 224 | ····</span><span·class="nc">server</span><span·class="p">:</span><span·class="nf">cast</span><span·class="p"·data-group-id="1944779897-13">(</span><span·class="ss">ch2</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1944779897-14">{</span><span·class="ss">free</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Ch</span><sp[·...·truncated·by·diffoscope;·len:·92,·SHA:·663094787627c3500c712d6f1ee3d5239599f517989f85a044eeb92d0203c90b·...·]-13">)</span><span·class="p">.</span><span·class="w"> |
| 225 | </span><span·class="nf">init</span><span·class="p"·data-group-id=" | 225 | </span><span·class="nf">init</span><span·class="p"·data-group-id="1944779897-15">(</span><span·class="p"·data-group-id="1944779897-15">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 226 | ····</span><span·class="nf">channels</span><span·class="p"·data-group-id=" | 226 | ····</span><span·class="nf">channels</span><span·class="p"·data-group-id="1944779897-16">(</span><span·class="p"·data-group-id="1944779897-16">)</span><span·class="p">.</span><span·class="w"> |
| 227 | </span><span·class="nf">handle_call</span><span·class="p"·data-group-id=" | 227 | </span><span·class="nf">handle_call</span><span·class="p"·data-group-id="1944779897-17">(</span><span·class="ss">alloc</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Chs</span><span·class="p"·data-group-id="1944779897-17">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 228 | ····</span><span·class="nf">alloc</span><span·class="p"·data-group-id=" | 228 | ····</span><span·class="nf">alloc</span><span·class="p"·data-group-id="1944779897-18">(</span><span·class="n">Chs</span><span·class="p"·data-group-id="1944779897-18">)</span><span·class="p">.</span><span·class="w">·</span><span·class="c1">%·=>·{Ch,Chs2}</span><span·class="w"> |
| 229 | </span><span·class="nf">handle_cast</span><span·class="p"·data-group-id=" | 229 | </span><span·class="nf">handle_cast</span><span·class="p"·data-group-id="1944779897-19">(</span><span·class="p"·data-group-id="1944779897-20">{</span><span·class="ss">free</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Ch</span><span·class="p"·data-group-id="1944779897-20">}</span><span·class="p">,</span>[·...·truncated·by·diffoscope;·len:·91,·SHA:·d2c897feeb5064bac402d9ab9db39a6dba6b9336d8175dc97fd51fd1a6837ab7·...·]-19">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 230 | ····</span><span·class="nf">free</span><span·class="p"·data-group-id=" | 230 | ····</span><span·class="nf">free</span><span·class="p"·data-group-id="1944779897-21">(</span><span·class="n">Ch</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Chs</span><span·class="p"·data-group-id="1944779897-21">)</span><span·class="p">.</span><span·class="w">·</span><span·class="c1">%·=>·Chs2</span></code></pre><p>Notice·the·following:</p><ul><li>The·code·in·<code·class="inline">server</code>·can·be·reused·to·build·many·different·servers.</li><li>The·server·name,·in·this·example·the·atom·<code·class="inline">ch2</code>,·is·hidden·from·the·users·of |
| 231 | the·client·functions.·This·means·that·the·name·can·be·changed·without | 231 | the·client·functions.·This·means·that·the·name·can·be·changed·without |
| 232 | affecting·them.</li><li>The·protocol·(messages·sent·to·and·received·from·the·server)·is·also·hidden. | 232 | affecting·them.</li><li>The·protocol·(messages·sent·to·and·received·from·the·server)·is·also·hidden. |
| 233 | This·is·good·programming·practice·and·allows·one·to·change·the·protocol | 233 | This·is·good·programming·practice·and·allows·one·to·change·the·protocol |
| 234 | without·changing·the·code·using·the·interface·functions.</li><li>The·functionality·of·<code·class="inline">server</code>·can·be·extended·without·having·to·change·<code·class="inline">ch2</code> | 234 | without·changing·the·code·using·the·interface·functions.</li><li>The·functionality·of·<code·class="inline">server</code>·can·be·extended·without·having·to·change·<code·class="inline">ch2</code> |
| 235 | or·any·other·callback·module.</li></ul><p>In·<code·class="inline">ch1.erl</code>·and·<code·class="inline">ch2.erl</code>·above,·the·implementation·of·<code·class="inline">channels/0</code>,·<code·class="inline">alloc/1</code>, | 235 | or·any·other·callback·module.</li></ul><p>In·<code·class="inline">ch1.erl</code>·and·<code·class="inline">ch2.erl</code>·above,·the·implementation·of·<code·class="inline">channels/0</code>,·<code·class="inline">alloc/1</code>, |
| 236 | and·<code·class="inline">free/2</code>·has·been·intentionally·left·out,·as·it·is·not·relevant·to·the | 236 | and·<code·class="inline">free/2</code>·has·been·intentionally·left·out,·as·it·is·not·relevant·to·the |
| 237 | example.·For·completeness,·one·way·to·write·these·functions·is·given·below.·This | 237 | example.·For·completeness,·one·way·to·write·these·functions·is·given·below.·This |
| 238 | is·an·example·only,·a·realistic·implementation·must·be·able·to·handle·situations | 238 | is·an·example·only,·a·realistic·implementation·must·be·able·to·handle·situations |
| 239 | like·running·out·of·channels·to·allocate,·and·so·on.</p><p><a·href=""·id="channels-implementation"></a></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">channels</span><span·class="p"·data-group-id=" | 239 | like·running·out·of·channels·to·allocate,·and·so·on.</p><p><a·href=""·id="channels-implementation"></a></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">channels</span><span·class="p"·data-group-id="3109118465-1">(</span><span·class="p"·data-group-id="3109118465-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 240 | ···</span><span·class="p"·data-group-id=" | 240 | ···</span><span·class="p"·data-group-id="3109118465-2">{</span><span·class="p">_</span><span·class="n">Allocated</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="3109118465-3">[</span><span·class="p"·data-group-id="3109118465-3">]</span>[·...·truncated·by·diffoscope;·len:·498,·SHA:·32e5660f6c815ffed3201896d41482b8d818fbe6fd0312b7aba68b8c33e35eb0·...·]-2">}</span><span·class="p">.</span><span·class="w"> |
| 241 | </span><span·class="nf">alloc</span><span·class="p"·data-group-id=" | 241 | </span><span·class="nf">alloc</span><span·class="p"·data-group-id="3109118465-5">(</span><span·class="p"·data-group-id="3109118465-6">{</span><span·class="n">Allocated</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3109118465-7">[</span><span·class="n">H</span><span·class="p">|</span>[·...·truncated·by·diffoscope;·len:·294,·SHA:·95c8786d3cc43698cce96aedc138a08aca67822af27099b00c3379025459d4d6·...·]-5">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 242 | ···</span><span·class="p"·data-group-id=" | 242 | ···</span><span·class="p"·data-group-id="3109118465-8">{</span><span·class="n">H</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3109118465-9">{</span><span·class="p"·data-group-id="3109118465-10">[</span><span·class="n">H</span><span·class="p">|</span><span·c[·...·truncated·by·diffoscope;·len:·245,·SHA:·7e6d9ea47dd79810c89f70a1d4f35a89be6c68030131fd355b71af3ac215e959·...·]-8">}</span><span·class="p">.</span><span·class="w"> |
| 243 | </span><span·class="nf">free</span><span·class="p"·data-group-id=" | 243 | </span><span·class="nf">free</span><span·class="p"·data-group-id="3109118465-11">(</span><span·class="n">Ch</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3109118465-12">{</span><span·class="n">Alloc</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Free</span><sp[·...·truncated·by·diffoscope;·len:·195,·SHA:·43d88c4c056e401e9990f7a897459c6a084db7e400629f2758cd2140c4f85d23·...·]-11">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 244 | ···</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">member</span><span·class="p"·data-group-id=" | 244 | ···</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">member</span><span·class="p"·data-group-id="3109118465-13">(</span><span·class="n">Ch</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Alloc</span><span·class="p"·data-group-id="3109118465-13">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 245 | ······</span><span·class="ss">true</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 245 | ······</span><span·class="ss">true</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 246 | ·········</span><span·class="p"·data-group-id=" | 246 | ·········</span><span·class="p"·data-group-id="3109118465-14">{</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">delete</span><span·class="p"·data-group-id="3109118465-15">(</span><span·class="n">Ch</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Alloc</[·...·truncated·by·diffoscope;·len:·332,·SHA:·d0e8b11df7b1d5086c325ec075be4316ee16e7b6f03827fa3a51ec65f22ab82c·...·]-14">}</span><span·class="p">;</span><span·class="w"> |
| 247 | ······</span><span·class="ss">false</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 247 | ······</span><span·class="ss">false</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 248 | ·········</span><span·class="n">Channels</span><span·class="w"> | 248 | ·········</span><span·class="n">Channels</span><span·class="w"> |
| 249 | ···</span><span·class="k">end</span><span·class="p">.</span></code></pre><p>Code·written·without·using·behaviours·can·be·more·efficient,·but·the·increased | 249 | ···</span><span·class="k">end</span><span·class="p">.</span></code></pre><p>Code·written·without·using·behaviours·can·be·more·efficient,·but·the·increased |
| 250 | efficiency·is·at·the·expense·of·generality.·The·ability·to·manage·all | 250 | efficiency·is·at·the·expense·of·generality.·The·ability·to·manage·all |
| 251 | applications·in·the·system·in·a·consistent·manner·is·important.</p><p>Using·behaviours·also·makes·it·easier·to·read·and·understand·code·written·by | 251 | applications·in·the·system·in·a·consistent·manner·is·important.</p><p>Using·behaviours·also·makes·it·easier·to·read·and·understand·code·written·by |
| 252 | other·programmers.·Improvised·programming·structures,·while·possibly·more | 252 | other·programmers.·Improvised·programming·structures,·while·possibly·more |
| 253 | efficient,·are·always·more·difficult·to·understand.</p><p>The·<code·class="inline">server</code>·module·corresponds,·greatly·simplified,·to·the·Erlang/OTP·behaviour | 253 | efficient,·are·always·more·difficult·to·understand.</p><p>The·<code·class="inline">server</code>·module·corresponds,·greatly·simplified,·to·the·Erlang/OTP·behaviour |
| 254 | <code·class="inline">gen_server</code>.</p><p>The·standard·Erlang/OTP·behaviours·are:</p><ul><li><p><a·href="gen_server_concepts.html">gen_server</a></p><p>For·implementing·the·server·of·a·client-server·relation</p></li><li><p><a·href="statem.html">gen_statem</a></p><p>For·implementing·state·machines</p></li><li><p><a·href="events.html">gen_event</a></p><p>For·implementing·event·handling·functionality</p></li><li><p><a·href="sup_princ.html">supervisor</a></p><p>For·implementing·a·supervisor·in·a·supervision·tree</p></li></ul><p>The·compiler·understands·the·module·attribute·<code·class="inline">-behaviour(Behaviour)</code>·and·issues | 254 | <code·class="inline">gen_server</code>.</p><p>The·standard·Erlang/OTP·behaviours·are:</p><ul><li><p><a·href="gen_server_concepts.html">gen_server</a></p><p>For·implementing·the·server·of·a·client-server·relation</p></li><li><p><a·href="statem.html">gen_statem</a></p><p>For·implementing·state·machines</p></li><li><p><a·href="events.html">gen_event</a></p><p>For·implementing·event·handling·functionality</p></li><li><p><a·href="sup_princ.html">supervisor</a></p><p>For·implementing·a·supervisor·in·a·supervision·tree</p></li></ul><p>The·compiler·understands·the·module·attribute·<code·class="inline">-behaviour(Behaviour)</code>·and·issues |
| 255 | warnings·about·missing·callback·functions,·for·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 255 | warnings·about·missing·callback·functions,·for·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="3995669987-1">(</span><span·class="ss">chs3</span><span·class="p"·data-group-id="3995669987-1">)</span><span·class="p">.</span><span·class="w"> |
| 256 | </span><span·class="p">-</span><span·class="na">behaviour</span><span·class="p"·data-group-id=" | 256 | </span><span·class="p">-</span><span·class="na">behaviour</span><span·class="p"·data-group-id="3995669987-2">(</span><span·class="ss">gen_server</span><span·class="p"·data-group-id="3995669987-2">)</span><span·class="p">.</span><span·class="w"> |
| 257 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> | 257 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> |
| 258 | </span><span·class="mi">3</span><span·class="o">></span><span·class="w">·</span><span·class="nf">c</span><span·class="p"·data-group-id=" | 258 | </span><span·class="mi">3</span><span·class="o">></span><span·class="w">·</span><span·class="nf">c</span><span·class="p"·data-group-id="3995669987-3">(</span><span·class="ss">chs3</span><span·class="p"·data-group-id="3995669987-3">)</span><span·class="p">.</span><span·class="w"> |
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| 142 | </h2> | 142 | </h2> |
| 143 | <p>A·<em>node</em>·is·an·executing·Erlang·runtime·system·that·has·been·given·a·name,·using | 143 | <p>A·<em>node</em>·is·an·executing·Erlang·runtime·system·that·has·been·given·a·name,·using |
| 144 | the·command-line·flag·<a·href="../../erts-16.0/doc/html/erl_cmd.html#name"><code·class="inline">-name</code></a>·(long·names)·or | 144 | the·command-line·flag·<a·href="../../erts-16.0/doc/html/erl_cmd.html#name"><code·class="inline">-name</code></a>·(long·names)·or |
| 145 | <a·href="../../erts-16.0/doc/html/erl_cmd.html#sname"><code·class="inline">-sname</code></a>·(short·names).</p><p>The·format·of·the·node·name·is·an·atom·<code·class="inline">name@host</code>.·<code·class="inline">name</code>·is·the·name·given·by | 145 | <a·href="../../erts-16.0/doc/html/erl_cmd.html#sname"><code·class="inline">-sname</code></a>·(short·names).</p><p>The·format·of·the·node·name·is·an·atom·<code·class="inline">name@host</code>.·<code·class="inline">name</code>·is·the·name·given·by |
| 146 | the·user.·<code·class="inline">host</code>·is·the·full·host·name·if·long·names·are·used,·or·the·first·part | 146 | the·user.·<code·class="inline">host</code>·is·the·full·host·name·if·long·names·are·used,·or·the·first·part |
| 147 | of·the·host·name·if·short·names·are·used.·Function·<a·href="../../erts-16.0/doc/html/erlang.html#node/0"><code·class="inline">node()</code></a> | 147 | of·the·host·name·if·short·names·are·used.·Function·<a·href="../../erts-16.0/doc/html/erlang.html#node/0"><code·class="inline">node()</code></a> |
| 148 | returns·the·name·of·the·node.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%·erl·-name·dilbert</span><span·class="w"> | 148 | returns·the·name·of·the·node.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%·erl·-name·dilbert</span><span·class="w"> |
| 149 | </span><span·class="p"·data-group-id=" | 149 | </span><span·class="p"·data-group-id="4268651845-1">(</span><span·class="ss">dilbert@uab</span><span·class="p">.</span><span·class="ss">ericsson</span><span·class="p">.</span><span·class="ss">se</span><span·class="p"·data-group-id="4268651845-1">)</span><span·class="mi">1</span><span·class="o"[·...·truncated·by·diffoscope;·len:·158,·SHA:·c60fa8c5bc24e168af6716362847c70c9ce428912d6a99e6bbd37112265a9ccc·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 150 | </span><span·class="ss">'dilbert@uab.ericsson.se'</span><span·class="w"> | 150 | </span><span·class="ss">'dilbert@uab.ericsson.se'</span><span·class="w"> |
| 151 | </span><span·class="c1">%·erl·-sname·dilbert</span><span·class="gp·unselectable"> | 151 | </span><span·class="c1">%·erl·-sname·dilbert</span><span·class="gp·unselectable"> |
| 152 | (dilbert@uab)1>·</span><span·class="nf">node</span><span·class="p"·data-group-id=" | 152 | (dilbert@uab)1>·</span><span·class="nf">node</span><span·class="p"·data-group-id="4268651845-3">(</span><span·class="p"·data-group-id="4268651845-3">)</span><span·class="p">.</span><span·class="w"> |
| 153 | </span><span·class="ss">dilbert@uab</span></code></pre><p>The·node·name·can·also·be·given·in·runtime·by·calling·<a·href="../../lib/kernel-10.3/doc/html/net_kernel.html#start/1"><code·class="inline">net_kernel:start/1</code></a>.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%·erl</span><span·class="gp·unselectable"> | 153 | </span><span·class="ss">dilbert@uab</span></code></pre><p>The·node·name·can·also·be·given·in·runtime·by·calling·<a·href="../../lib/kernel-10.3/doc/html/net_kernel.html#start/1"><code·class="inline">net_kernel:start/1</code></a>.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%·erl</span><span·class="gp·unselectable"> |
| 154 | 1>·</span><span·class="nf">node</span><span·class="p"·data-group-id=" | 154 | 1>·</span><span·class="nf">node</span><span·class="p"·data-group-id="1820040325-1">(</span><span·class="p"·data-group-id="1820040325-1">)</span><span·class="p">.</span><span·class="w"> |
| 155 | </span><span·class="ss">nonode@nohost</span><span·class="gp·unselectable"> | 155 | </span><span·class="ss">nonode@nohost</span><span·class="gp·unselectable"> |
| 156 | 2>·</span><span·class="nc">net_kernel</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id=" | 156 | 2>·</span><span·class="nc">net_kernel</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id="1820040325-2">(</span><span·class="p"·data-group-id="1820040325-3">[</span><span·class="ss">dilbert</span><span·class="p">,</span><span·class="ss">shortnames</span><span·class="p"·data-group-id="1820040325-3">]</span><span·class="p"·data-group-id="18200403[·...·truncated·by·diffoscope;·len:·2,·SHA:·b7a56873cd771f2c446d369b649430b65a756ba278ff97ec81bb6f55b2e73569·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 157 | </span><span·class="p"·data-group-id=" | 157 | </span><span·class="p"·data-group-id="1820040325-4">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="o"><</span><span·class="mf">0.102</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="p"·data-group-id="1820040325-4">}</span><span·class="gp·unselectable"> |
| 158 | (dilbert@uab)3>·</span><span·class="nf">node</span><span·class="p"·data-group-id=" | 158 | (dilbert@uab)3>·</span><span·class="nf">node</span><span·class="p"·data-group-id="1820040325-5">(</span><span·class="p"·data-group-id="1820040325-5">)</span><span·class="p">.</span><span·class="w"> |
| 159 | </span><span·class="ss">dilbert@uab</span></code></pre><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>A·node·with·a·long·node·name·cannot·communicate·with·a·node·with·a·short·node | 159 | </span><span·class="ss">dilbert@uab</span></code></pre><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>A·node·with·a·long·node·name·cannot·communicate·with·a·node·with·a·short·node |
| 160 | name.</p></section><h2·id="node-connections"·class="section-heading"> | 160 | name.</p></section><h2·id="node-connections"·class="section-heading"> |
| 161 | ··<a·href="#node-connections"·class="hover-link"> | 161 | ··<a·href="#node-connections"·class="hover-link"> |
| 162 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 162 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 163 | ··</a> | 163 | ··</a> |
| 164 | ··<span·class="text">Node·Connections</span> | 164 | ··<span·class="text">Node·Connections</span> |
| 165 | </h2> | 165 | </h2> |
| Offset 356, 15 lines modified | Offset 356, 15 lines modified | ||
| 356 | ······<p·class="built-using"> | 356 | ······<p·class="built-using"> |
| 357 | ········Built·using | 357 | ········Built·using |
| 358 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 358 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 359 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 359 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 360 | ······</p> | 360 | ······</p> |
| 361 | <p>Copyright·©·1996-202 | 361 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 362 | ····</footer> | 362 | ····</footer> |
| 363 | ··</div> | 363 | ··</div> |
| 364 | </main> | 364 | </main> |
| 365 | </div> | 365 | </div> |
| 366 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 366 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 367 | ··<script> | 367 | ··<script> |
| 368 | ··let·initialized·=·false; | 368 | ··let·initialized·=·false; |
| Offset 150, 36 lines modified | Offset 150, 36 lines modified | ||
| 150 | (within·the·time-out·specified·by·<code·class="inline">sync_nodes_timeout</code>).</li><li><p><code·class="inline">sync_nodes_timeout·=·integer()·|·infinity</code>·-·Specifies·how·many·milliseconds | 150 | (within·the·time-out·specified·by·<code·class="inline">sync_nodes_timeout</code>).</li><li><p><code·class="inline">sync_nodes_timeout·=·integer()·|·infinity</code>·-·Specifies·how·many·milliseconds |
| 151 | to·wait·for·the·other·nodes·to·start.</p></li></ul><p>When·started,·the·node·waits·for·all·nodes·specified·by·<code·class="inline">sync_nodes_mandatory</code> | 151 | to·wait·for·the·other·nodes·to·start.</p></li></ul><p>When·started,·the·node·waits·for·all·nodes·specified·by·<code·class="inline">sync_nodes_mandatory</code> |
| 152 | and·<code·class="inline">sync_nodes_optional</code>·to·come·up.·When·all·nodes·are·up,·or·when·all | 152 | and·<code·class="inline">sync_nodes_optional</code>·to·come·up.·When·all·nodes·are·up,·or·when·all |
| 153 | mandatory·nodes·are·up·and·the·time·specified·by·<code·class="inline">sync_nodes_timeout</code>·has | 153 | mandatory·nodes·are·up·and·the·time·specified·by·<code·class="inline">sync_nodes_timeout</code>·has |
| 154 | elapsed,·all·applications·start.·If·not·all·mandatory·nodes·are·up,·the·node | 154 | elapsed,·all·applications·start.·If·not·all·mandatory·nodes·are·up,·the·node |
| 155 | terminates.</p><p><em>Example:</em></p><p>An·application·<code·class="inline">myapp</code>·is·to·run·at·the·node·<code·class="inline">cp1@cave</code>.·If·this·node·goes·down, | 155 | terminates.</p><p><em>Example:</em></p><p>An·application·<code·class="inline">myapp</code>·is·to·run·at·the·node·<code·class="inline">cp1@cave</code>.·If·this·node·goes·down, |
| 156 | <code·class="inline">myapp</code>·is·to·be·restarted·at·<code·class="inline">cp2@cave</code>·or·<code·class="inline">cp3@cave</code>.·A·system·configuration | 156 | <code·class="inline">myapp</code>·is·to·be·restarted·at·<code·class="inline">cp2@cave</code>·or·<code·class="inline">cp3@cave</code>.·A·system·configuration |
| 157 | file·<code·class="inline">cp1.config</code>·for·<code·class="inline">cp1@cave</code>·can·look·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 157 | file·<code·class="inline">cp1.config</code>·for·<code·class="inline">cp1@cave</code>·can·look·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="5323162135-1">[</span><span·class="p"·data-group-id="5323162135-2">{</span><span·class="ss">kernel</span><span·class="p">,</span><span·class="w"> |
| 158 | ··</span><span·class="p"·data-group-id=" | 158 | ··</span><span·class="p"·data-group-id="5323162135-3">[</span><span·class="p"·data-group-id="5323162135-4">{</span><span·class="ss">distributed</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="5323162135-5">[</span><span·class="p"·data-group-id="5323162135-6">[·...·truncated·by·diffoscope;·len:·712,·SHA:·08b85cd1bd643aa4a91fa4f9b4cc1d26da8a726b9a8bf6ca732e9c0378931a5c·...·]-4">}</span><span·class="p">,</span><span·class="w"> |
| 159 | ···</span><span·class="p"·data-group-id=" | 159 | ···</span><span·class="p"·data-group-id="5323162135-9">{</span><span·class="ss">sync_nodes_mandatory</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="5323162135-10">[</span><span·class="ss">cp2@cave</span><span·class="p">,</span><span·class="w">·</span><span·cl[·...·truncated·by·diffoscope;·len:·119,·SHA:·a839748bdd231ff42fcafa9ef4dfd170df3e6c874a3f49827413e2afdc32372f·...·]-9">}</span><span·class="p">,</span><span·class="w"> |
| 160 | ···</span><span·class="p"·data-group-id=" | 160 | ···</span><span·class="p"·data-group-id="5323162135-11">{</span><span·class="ss">sync_nodes_timeout</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">5000</span><span·class="p"·data-group-id="5323162135-11">}</span><span·class="w"> |
| 161 | ··</span><span·class="p"·data-group-id=" | 161 | ··</span><span·class="p"·data-group-id="5323162135-3">]</span><span·class="w"> |
| 162 | ·</span><span·class="p"·data-group-id=" | 162 | ·</span><span·class="p"·data-group-id="5323162135-2">}</span><span·class="w"> |
| 163 | </span><span·class="p"·data-group-id=" | 163 | </span><span·class="p"·data-group-id="5323162135-1">]</span><span·class="p">.</span></code></pre><p>The·system·configuration·files·for·<code·class="inline">cp2@cave</code>·and·<code·class="inline">cp3@cave</code>·are·identical, |
| 164 | except·for·the·list·of·mandatory·nodes,·which·is·to·be·<code·class="inline">[cp1@cave,·cp3@cave]</code> | 164 | except·for·the·list·of·mandatory·nodes,·which·is·to·be·<code·class="inline">[cp1@cave,·cp3@cave]</code> |
| 165 | for·<code·class="inline">cp2@cave</code>·and·<code·class="inline">[cp1@cave,·cp2@cave]</code>·for·<code·class="inline">cp3@cave</code>.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>All·involved·nodes·must·have·the·same·value·for·<code·class="inline">distributed</code>·and | 165 | for·<code·class="inline">cp2@cave</code>·and·<code·class="inline">[cp1@cave,·cp2@cave]</code>·for·<code·class="inline">cp3@cave</code>.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>All·involved·nodes·must·have·the·same·value·for·<code·class="inline">distributed</code>·and |
| 166 | <code·class="inline">sync_nodes_timeout</code>.·Otherwise·the·system·behavior·is·undefined.</p></section><h2·id="starting-and-stopping-distributed-applications"·class="section-heading"> | 166 | <code·class="inline">sync_nodes_timeout</code>.·Otherwise·the·system·behavior·is·undefined.</p></section><h2·id="starting-and-stopping-distributed-applications"·class="section-heading"> |
| 167 | ··<a·href="#starting-and-stopping-distributed-applications"·class="hover-link"> | 167 | ··<a·href="#starting-and-stopping-distributed-applications"·class="hover-link"> |
| 168 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 168 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 169 | ··</a> | 169 | ··</a> |
| 170 | ··<span·class="text">Starting·and·Stopping·Distributed·Applications</span> | 170 | ··<span·class="text">Starting·and·Stopping·Distributed·Applications</span> |
| 171 | </h2> | 171 | </h2> |
| 172 | <p>When·all·involved·(mandatory)·nodes·have·been·started,·the·distributed | 172 | <p>When·all·involved·(mandatory)·nodes·have·been·started,·the·distributed |
| 173 | application·can·be·started·by·calling·<code·class="inline">application:start(Application)</code>·at·<em>all | 173 | application·can·be·started·by·calling·<code·class="inline">application:start(Application)</code>·at·<em>all |
| 174 | of·these·nodes.</em></p><p>A·boot·script·(see·<a·href="release_structure.html">Releases</a>)·can·be·used·that | 174 | of·these·nodes.</em></p><p>A·boot·script·(see·<a·href="release_structure.html">Releases</a>)·can·be·used·that |
| 175 | automatically·starts·the·application.</p><p>The·application·is·started·at·the·first·operational·node·that·is·listed·in·the | 175 | automatically·starts·the·application.</p><p>The·application·is·started·at·the·first·operational·node·that·is·listed·in·the |
| 176 | list·of·nodes·in·the·<code·class="inline">distributed</code>·configuration·parameter.·The·application·is | 176 | list·of·nodes·in·the·<code·class="inline">distributed</code>·configuration·parameter.·The·application·is |
| 177 | started·as·usual.·That·is,·an·application·master·is·created·and·calls·the | 177 | started·as·usual.·That·is,·an·application·master·is·created·and·calls·the |
| 178 | application·callback·function:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Module</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id=" | 178 | application·callback·function:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Module</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id="1607020355-1">(</span><span·class="ss">normal</span><span·class="p">,</span><span·class="w">·</span><span·class="n">StartArgs</span><span·class="p"·data-group-id="1607020355-1">)</span></code></pre><p>Example:</p><p>Continuing·the·example·from·the·previous·section,·the·three·nodes·are·started, |
| 179 | specifying·the·system·configuration·file:</p><pre><code·class="text">>·erl·-sname·cp1·-config·cp1 | 179 | specifying·the·system·configuration·file:</p><pre><code·class="text">>·erl·-sname·cp1·-config·cp1 |
| 180 | >·erl·-sname·cp2·-config·cp2 | 180 | >·erl·-sname·cp2·-config·cp2 |
| 181 | >·erl·-sname·cp3·-config·cp3</code></pre><p>When·all·nodes·are·operational,·<code·class="inline">myapp</code>·can·be·started.·This·is·achieved·by | 181 | >·erl·-sname·cp3·-config·cp3</code></pre><p>When·all·nodes·are·operational,·<code·class="inline">myapp</code>·can·be·started.·This·is·achieved·by |
| 182 | calling·<code·class="inline">application:start(myapp)</code>·at·all·three·nodes.·It·is·then·started·at | 182 | calling·<code·class="inline">application:start(myapp)</code>·at·all·three·nodes.·It·is·then·started·at |
| 183 | <code·class="inline">cp1</code>,·as·shown·in·the·following·figure:</p><p><a·href=""·id="dist1"></a></p><p><img·src="assets/dist1.gif"·alt="Application·myapp·-·Situation·1"·title="Application·myapp·-·Situation·1"/></p><p>Similarly,·the·application·must·be·stopped·by·calling | 183 | <code·class="inline">cp1</code>,·as·shown·in·the·following·figure:</p><p><a·href=""·id="dist1"></a></p><p><img·src="assets/dist1.gif"·alt="Application·myapp·-·Situation·1"·title="Application·myapp·-·Situation·1"/></p><p>Similarly,·the·application·must·be·stopped·by·calling |
| 184 | <code·class="inline">application:stop(Application)</code>·at·all·involved·nodes.</p><h2·id="failover"·class="section-heading"> | 184 | <code·class="inline">application:stop(Application)</code>·at·all·involved·nodes.</p><h2·id="failover"·class="section-heading"> |
| 185 | ··<a·href="#failover"·class="hover-link"> | 185 | ··<a·href="#failover"·class="hover-link"> |
| Offset 187, 30 lines modified | Offset 187, 30 lines modified | ||
| 187 | ··</a> | 187 | ··</a> |
| 188 | ··<span·class="text">Failover</span> | 188 | ··<span·class="text">Failover</span> |
| 189 | </h2> | 189 | </h2> |
| 190 | <p>If·the·node·where·the·application·is·running·goes·down,·the·application·is | 190 | <p>If·the·node·where·the·application·is·running·goes·down,·the·application·is |
| 191 | restarted·(after·the·specified·time-out)·at·the·first·operational·node·that·is | 191 | restarted·(after·the·specified·time-out)·at·the·first·operational·node·that·is |
| 192 | listed·in·the·list·of·nodes·in·the·<code·class="inline">distributed</code>·configuration·parameter.·This | 192 | listed·in·the·list·of·nodes·in·the·<code·class="inline">distributed</code>·configuration·parameter.·This |
| 193 | is·called·a·<em>failover</em>.</p><p>The·application·is·started·the·normal·way·at·the·new·node,·that·is,·by·the | 193 | is·called·a·<em>failover</em>.</p><p>The·application·is·started·the·normal·way·at·the·new·node,·that·is,·by·the |
| 194 | application·master·calling:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Module</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id="0 | 194 | application·master·calling:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Module</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id="0141929510-1">(</span><span·class="ss">normal</span><span·class="p">,</span><span·class="w">·</span><span·class="n">StartArgs</span><span·class="p"·data-group-id="0141929510-1">)</span></code></pre><p>An·exception·is·if·the·application·has·the·<code·class="inline">start_phases</code>·key·defined·(see |
| 195 | <a·href="included_applications.html">Included·Applications</a>).·The·application·is·then | 195 | <a·href="included_applications.html">Included·Applications</a>).·The·application·is·then |
| 196 | instead·started·by·calling:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Module</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id=" | 196 | instead·started·by·calling:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Module</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id="0082132429-1">(</span><span·class="p"·data-group-id="0082132429-2">{</span><span·class="ss">failover</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Node</span><span·class="p"·data-group-id="0082132429-2">}</span><span·class="p">,</sp[·...·truncated·by·diffoscope;·len:·100,·SHA:·e9d9c3f3ff0a859cdd37c2d3bc21ae89eccfd497667138715bda937c11e2e388·...·]-1">)</span></code></pre><p>Here·<code·class="inline">Node</code>·is·the·terminated·node.</p><p><em>Example:</em></p><p>If·<code·class="inline">cp1</code>·goes·down,·the·system·checks·which·one·of·the·other·nodes,·<code·class="inline">cp2</code>·or |
| 197 | <code·class="inline">cp3</code>,·has·the·least·number·of·running·applications,·but·waits·for·5·seconds·for | 197 | <code·class="inline">cp3</code>,·has·the·least·number·of·running·applications,·but·waits·for·5·seconds·for |
| 198 | <code·class="inline">cp1</code>·to·restart.·If·<code·class="inline">cp1</code>·does·not·restart·and·<code·class="inline">cp2</code>·runs·fewer·applications | 198 | <code·class="inline">cp1</code>·to·restart.·If·<code·class="inline">cp1</code>·does·not·restart·and·<code·class="inline">cp2</code>·runs·fewer·applications |
| 199 | than·<code·class="inline">cp3</code>,·<code·class="inline">myapp</code>·is·restarted·on·<code·class="inline">cp2</code>.</p><p><a·href=""·id="dist2"></a></p><p><img·src="assets/dist2.gif"·alt="Application·myapp·-·Situation·2"·title="Application·myapp·-·Situation·2"/></p><p>Suppose·now·that·<code·class="inline">cp2</code>·goes·also·down·and·does·not·restart·within·5·seconds. | 199 | than·<code·class="inline">cp3</code>,·<code·class="inline">myapp</code>·is·restarted·on·<code·class="inline">cp2</code>.</p><p><a·href=""·id="dist2"></a></p><p><img·src="assets/dist2.gif"·alt="Application·myapp·-·Situation·2"·title="Application·myapp·-·Situation·2"/></p><p>Suppose·now·that·<code·class="inline">cp2</code>·goes·also·down·and·does·not·restart·within·5·seconds. |
| 200 | <code·class="inline">myapp</code>·is·now·restarted·on·<code·class="inline">cp3</code>.</p><p><a·href=""·id="dist3"></a></p><p><img·src="assets/dist3.gif"·alt="Application·myapp·-·Situation·3"·title="Application·myapp·-·Situation·3"/></p><h2·id="takeover"·class="section-heading"> | 200 | <code·class="inline">myapp</code>·is·now·restarted·on·<code·class="inline">cp3</code>.</p><p><a·href=""·id="dist3"></a></p><p><img·src="assets/dist3.gif"·alt="Application·myapp·-·Situation·3"·title="Application·myapp·-·Situation·3"/></p><h2·id="takeover"·class="section-heading"> |
| 201 | ··<a·href="#takeover"·class="hover-link"> | 201 | ··<a·href="#takeover"·class="hover-link"> |
| 202 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 202 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 203 | ··</a> | 203 | ··</a> |
| 204 | ··<span·class="text">Takeover</span> | 204 | ··<span·class="text">Takeover</span> |
| 205 | </h2> | 205 | </h2> |
| 206 | <p>If·a·node·is·started,·which·has·higher·priority·according·to·<code·class="inline">distributed</code>·than | 206 | <p>If·a·node·is·started,·which·has·higher·priority·according·to·<code·class="inline">distributed</code>·than |
| 207 | the·node·where·a·distributed·application·is·running,·the·application·is | 207 | the·node·where·a·distributed·application·is·running,·the·application·is |
| 208 | restarted·at·the·new·node·and·stopped·at·the·old·node.·This·is·called·a | 208 | restarted·at·the·new·node·and·stopped·at·the·old·node.·This·is·called·a |
| 209 | <em>takeover</em>.</p><p>The·application·is·started·by·the·application·master·calling:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Module</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id=" | 209 | <em>takeover</em>.</p><p>The·application·is·started·by·the·application·master·calling:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Module</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id="6649527490-1">(</span><span·class="p"·data-group-id="6649527490-2">{</span><span·class="ss">takeover</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Node</span><span·class="p"·data-group-id="6649527490-2">}</span><span·class="p">,</sp[·...·truncated·by·diffoscope;·len:·100,·SHA:·5e7cb9be52e3a875a0b2693b01bbec74db954f58d9dae083903651cdc7dbbaa6·...·]-1">)</span></code></pre><p>Here·<code·class="inline">Node</code>·is·the·old·node.</p><p><em>Example:</em></p><p>If·<code·class="inline">myapp</code>·is·running·at·<code·class="inline">cp3</code>,·and·if·<code·class="inline">cp2</code>·now·restarts,·it·does·not·restart |
| 210 | <code·class="inline">myapp</code>,·as·the·order·between·the·<code·class="inline">cp2</code>·and·<code·class="inline">cp3</code>·nodes·is·undefined.</p><p><a·href=""·id="dist4"></a></p><p><img·src="assets/dist4.gif"·alt="Application·myapp·-·Situation·4"·title="Application·myapp·-·Situation·4"/></p><p>However,·if·<code·class="inline">cp1</code>·also·restarts,·the·function·<a·href="../../lib/kernel-10.3/doc/html/application.html#takeover/2"><code·class="inline">application:takeover/2</code></a>·moves | 210 | <code·class="inline">myapp</code>,·as·the·order·between·the·<code·class="inline">cp2</code>·and·<code·class="inline">cp3</code>·nodes·is·undefined.</p><p><a·href=""·id="dist4"></a></p><p><img·src="assets/dist4.gif"·alt="Application·myapp·-·Situation·4"·title="Application·myapp·-·Situation·4"/></p><p>However,·if·<code·class="inline">cp1</code>·also·restarts,·the·function·<a·href="../../lib/kernel-10.3/doc/html/application.html#takeover/2"><code·class="inline">application:takeover/2</code></a>·moves |
| 211 | <code·class="inline">myapp</code>·to·<code·class="inline">cp1</code>,·as·<code·class="inline">cp1</code>·has·a·higher·priority·than·<code·class="inline">cp3</code>·for·this | 211 | <code·class="inline">myapp</code>·to·<code·class="inline">cp1</code>,·as·<code·class="inline">cp1</code>·has·a·higher·priority·than·<code·class="inline">cp3</code>·for·this |
| 212 | application.·In·this·case,·<code·class="inline">Module:start({takeover,·cp3@cave},·StartArgs)</code>·is | 212 | application.·In·this·case,·<code·class="inline">Module:start({takeover,·cp3@cave},·StartArgs)</code>·is |
| 213 | executed·at·<code·class="inline">cp1</code>·to·start·the·application.</p><p><a·href=""·id="dist5"></a></p><p><img·src="assets/dist5.gif"·alt="Application·myapp·-·Situation·5"·title="Application·myapp·-·Situation·5"/></p> | 213 | executed·at·<code·class="inline">cp1</code>·to·start·the·application.</p><p><a·href=""·id="dist5"></a></p><p><img·src="assets/dist5.gif"·alt="Application·myapp·-·Situation·5"·title="Application·myapp·-·Situation·5"/></p> |
| 214 | </div> | 214 | </div> |
| 215 | <div·class="bottom-actions"·id="bottom-actions"> | 215 | <div·class="bottom-actions"·id="bottom-actions"> |
| Offset 257, 15 lines modified | Offset 257, 15 lines modified | ||
| 257 | ······<p·class="built-using"> | 257 | ······<p·class="built-using"> |
| 258 | ········Built·using | 258 | ········Built·using |
| 259 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 259 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 260 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 260 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 261 | ······</p> | 261 | ······</p> |
| 262 | <p>Copyright·©·1996-202 | 262 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 263 | ····</footer> | 263 | ····</footer> |
| 264 | ··</div> | 264 | ··</div> |
| 265 | </main> | 265 | </main> |
| 266 | </div> | 266 | </div> |
| 267 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 267 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 268 | ··<script> | 268 | ··<script> |
| 269 | ··let·initialized·=·false; | 269 | ··let·initialized·=·false; |
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| 112 | ······</a> | 112 | ······</a> |
| 113 | ····<span>Documentation</span> | 113 | ····<span>Documentation</span> |
| 114 | ··</h1> | 114 | ··</h1> |
| 115 | <p>Documentation·in·Erlang·is·done·through·the·<code·class="inline">-moduledoc</code>·and·<code·class="inline">-doc</code> | 115 | <p>Documentation·in·Erlang·is·done·through·the·<code·class="inline">-moduledoc</code>·and·<code·class="inline">-doc</code> |
| 116 | <a·href="modules.html#module-attributes">attributes</a>.·For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 116 | <a·href="modules.html#module-attributes">attributes</a>.·For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="8730218929-1">(</span><span·class="ss">arith</span><span·class="p"·data-group-id="8730218929-1">)</span><span·class="p">.</span><span·class="w"> |
| 117 | </span><span·class="p">-</span><span·class="na">moduledoc</span><span·class="w">·</span><span·class="s">""" | 117 | </span><span·class="p">-</span><span·class="na">moduledoc</span><span·class="w">·</span><span·class="s">""" |
| 118 | A·module·for·basic·arithmetic. | 118 | A·module·for·basic·arithmetic. |
| 119 | """</span><span·class="p">.</span><span·class="w"> | 119 | """</span><span·class="p">.</span><span·class="w"> |
| 120 | </span><span·class="w"> | 120 | </span><span·class="w"> |
| 121 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 121 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="8730218929-2">(</span><span·class="p"·data-group-id="8730218929-3">[</span><span·class="ss">add</span><span·class="p">/</span><span·class="mi">2</span><span·class="p"·data-group-id="8730218929-3">]</span><span·class="p"·data-group-id="8730218929-2">)</span><span·class="p">.</span><span·class="w"> |
| 122 | </span><span·class="w"> | 122 | </span><span·class="w"> |
| 123 | </span><span·class="p">-</span><span·class="na">doc</span><span·class="w">·</span><span·class="s">"Adds·two·numbers."</span><span·class="p">.</span><span·class="w"> | 123 | </span><span·class="p">-</span><span·class="na">doc</span><span·class="w">·</span><span·class="s">"Adds·two·numbers."</span><span·class="p">.</span><span·class="w"> |
| 124 | </span><span·class="nf">add</span><span·class="p"·data-group-id=" | 124 | </span><span·class="nf">add</span><span·class="p"·data-group-id="8730218929-4">(</span><span·class="n">One</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Two</span><span·class="p"·data-group-id="8730218929-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">One</span><span·class="w">·</span><span·class="o">+</span><span·class="w">·</span><span·class="n">Two</span><span·class="p">.</span></code></pre><p>The·<code·class="inline">-moduledoc</code>·attribute·has·to·be·located·before·the·first·<code·class="inline">-doc</code>·attribute |
| 125 | or·function·declaration.·It·documents·the·overall·purpose·of·the·module.</p><p>The·<code·class="inline">-doc</code>·attribute·always·precedes·the·<a·href="ref_man_functions.html">function</a>·or | 125 | or·function·declaration.·It·documents·the·overall·purpose·of·the·module.</p><p>The·<code·class="inline">-doc</code>·attribute·always·precedes·the·<a·href="ref_man_functions.html">function</a>·or |
| 126 | <a·href="modules.html#module-attributes">attribute</a>·it·documents.·The | 126 | <a·href="modules.html#module-attributes">attribute</a>·it·documents.·The |
| 127 | attributes·that·can·be·documented·are | 127 | attributes·that·can·be·documented·are |
| 128 | <a·href="typespec.html#type-declarations-of-user-defined-types">user-defined·types</a> | 128 | <a·href="typespec.html#type-declarations-of-user-defined-types">user-defined·types</a> |
| 129 | (<code·class="inline">-type</code>·and·<code·class="inline">-opaque</code>)·and | 129 | (<code·class="inline">-type</code>·and·<code·class="inline">-opaque</code>)·and |
| 130 | <a·href="modules.html#behaviour-module-attribute">behaviour·module·attributes</a> | 130 | <a·href="modules.html#behaviour-module-attribute">behaviour·module·attributes</a> |
| 131 | (<code·class="inline">-callback</code>).</p><p>By·default·the·format·used·for·documentation·attributes·is | 131 | (<code·class="inline">-callback</code>).</p><p>By·default·the·format·used·for·documentation·attributes·is |
| Offset 140, 55 lines modified | Offset 140, 55 lines modified | ||
| 140 | <a·href="modules.html#documentation-attributes">Documentation·Attributes</a>.</p><p><code·class="inline">-doc</code>·attributes·have·been·available·since·Erlang/OTP·27.</p><h2·id="documentation-metadata"·class="section-heading"> | 140 | <a·href="modules.html#documentation-attributes">Documentation·Attributes</a>.</p><p><code·class="inline">-doc</code>·attributes·have·been·available·since·Erlang/OTP·27.</p><h2·id="documentation-metadata"·class="section-heading"> |
| 141 | ··<a·href="#documentation-metadata"·class="hover-link"> | 141 | ··<a·href="#documentation-metadata"·class="hover-link"> |
| 142 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 142 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 143 | ··</a> | 143 | ··</a> |
| 144 | ··<span·class="text">Documentation·metadata</span> | 144 | ··<span·class="text">Documentation·metadata</span> |
| 145 | </h2> | 145 | </h2> |
| 146 | <p>It·is·possible·to·add·metadata·to·the·documentation·entry.·You·do·this·by·adding | 146 | <p>It·is·possible·to·add·metadata·to·the·documentation·entry.·You·do·this·by·adding |
| 147 | a·<code·class="inline">-moduledoc</code>·or·<code·class="inline">-doc</code>·attribute·with·a·map·as·argument.·For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 147 | a·<code·class="inline">-moduledoc</code>·or·<code·class="inline">-doc</code>·attribute·with·a·map·as·argument.·For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="4362213335-1">(</span><span·class="ss">arith</span><span·class="p"·data-group-id="4362213335-1">)</span><span·class="p">.</span><span·class="w"> |
| 148 | </span><span·class="p">-</span><span·class="na">moduledoc</span><span·class="w">·</span><span·class="s">""" | 148 | </span><span·class="p">-</span><span·class="na">moduledoc</span><span·class="w">·</span><span·class="s">""" |
| 149 | A·module·for·basic·arithmetic. | 149 | A·module·for·basic·arithmetic. |
| 150 | """</span><span·class="p">.</span><span·class="w"> | 150 | """</span><span·class="p">.</span><span·class="w"> |
| 151 | </span><span·class="p">-</span><span·class="na">moduledoc</span><span·class="w">·</span><span·class="p"·data-group-id=" | 151 | </span><span·class="p">-</span><span·class="na">moduledoc</span><span·class="w">·</span><span·class="p"·data-group-id="4362213335-2">#{</span><span·class="ss">since</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"1.0"</span><span·class="p"·data-group-id="4362213335-2">}</span><span·class="p">.</span><span·class="w"> |
| 152 | </span><span·class="w"> | 152 | </span><span·class="w"> |
| 153 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 153 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="4362213335-3">(</span><span·class="p"·data-group-id="4362213335-4">[</span><span·class="ss">add</span><span·class="p">/</span><span·class="mi">2</span><span·class="p"·data-group-id="4362213335-4">]</span><span·class="p"·data-group-id="4362213335-3">)</span><span·class="p">.</span><span·class="w"> |
| 154 | </span><span·class="w"> | 154 | </span><span·class="w"> |
| 155 | </span><span·class="p">-</span><span·class="na">doc</span><span·class="w">·</span><span·class="s">"Adds·two·numbers."</span><span·class="p">.</span><span·class="w"> | 155 | </span><span·class="p">-</span><span·class="na">doc</span><span·class="w">·</span><span·class="s">"Adds·two·numbers."</span><span·class="p">.</span><span·class="w"> |
| 156 | </span><span·class="p">-</span><span·class="na">doc</span><span·class="p"·data-group-id=" | 156 | </span><span·class="p">-</span><span·class="na">doc</span><span·class="p"·data-group-id="4362213335-5">(</span><span·class="p"·data-group-id="4362213335-6">#{</span><span·class="ss">since</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"1.0"</span><span·class="p"·data-group-id="436221[·...·truncated·by·diffoscope;·len:·57,·SHA:·1ee9d387bb9892f9c93de9601496295cb1f7f4c3a308cdd6d842df85756150d6·...·]-5">)</span><span·class="p">.</span><span·class="w"> |
| 157 | </span><span·class="nf">add</span><span·class="p"·data-group-id=" | 157 | </span><span·class="nf">add</span><span·class="p"·data-group-id="4362213335-7">(</span><span·class="n">One</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Two</span><span·class="p"·data-group-id="4362213335-7">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">One</span><span·class="w">·</span><span·class="o">+</span><span·class="w">·</span><span·class="n">Two</span><span·class="p">.</span></code></pre><p>The·metadata·is·used·by·documentation·tools·to·provide·extra·information·to·the |
| 158 | user.·There·can·be·multiple·metadata·documentation·entries,·in·which·case·the | 158 | user.·There·can·be·multiple·metadata·documentation·entries,·in·which·case·the |
| 159 | maps·will·be·merged·with·the·latest·taking·precedence·if·there·are·duplicate | 159 | maps·will·be·merged·with·the·latest·taking·precedence·if·there·are·duplicate |
| 160 | keys.·Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">doc</span><span·class="w">·</span><span·class="s">"Adds·two·numbers."</span><span·class="p">.</span><span·class="w"> | 160 | keys.·Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">doc</span><span·class="w">·</span><span·class="s">"Adds·two·numbers."</span><span·class="p">.</span><span·class="w"> |
| 161 | </span><span·class="p">-</span><span·class="na">doc</span><span·class="w">·</span><span·class="p"·data-group-id=" | 161 | </span><span·class="p">-</span><span·class="na">doc</span><span·class="w">·</span><span·class="p"·data-group-id="6981750838-1">#{</span><span·class="ss">since</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"1.0"</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">author</span><span·class=[·...·truncated·by·diffoscope;·len:·142,·SHA:·be5e92571e23dbd3156e812d4c7a73e244f2c4be524ed3e57601b666f1c4775e·...·]8-1">}</span><span·class="p">.</span><span·class="w"> |
| 162 | </span><span·class="p">-</span><span·class="na">doc</span><span·class="w">·</span><span·class="p"·data-group-id=" | 162 | </span><span·class="p">-</span><span·class="na">doc</span><span·class="w">·</span><span·class="p"·data-group-id="6981750838-2">#{</span><span·class="ss">since</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"2.0"</span><span·class="p"·data-group-id="6981750838-2">}</span><span·class="p">.</span><span·class="w"> |
| 163 | </span><span·class="nf">add</span><span·class="p"·data-group-id=" | 163 | </span><span·class="nf">add</span><span·class="p"·data-group-id="6981750838-3">(</span><span·class="n">One</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Two</span><span·class="p"·data-group-id="6981750838-3">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">One</span><span·class="w">·</span><span·class="o">+</span><span·class="w">·</span><span·class="n">Two</span><span·class="p">.</span></code></pre><p>This·will·result·in·a·metadata·entry·of·<code·class="inline">#{since·=>·"2.0",·author·=>·"Joe"}</code>.</p><p>The·keys·and·values·in·the·metadata·map·can·be·any·type,·but·it·is·recommended |
| 164 | that·only·<a·href="data_types.html#atom">atoms</a>·are·used·for·keys·and | 164 | that·only·<a·href="data_types.html#atom">atoms</a>·are·used·for·keys·and |
| 165 | <a·href="data_types.html#string">strings</a>·for·the·values.</p><h2·id="external-documentation-files"·class="section-heading"> | 165 | <a·href="data_types.html#string">strings</a>·for·the·values.</p><h2·id="external-documentation-files"·class="section-heading"> |
| 166 | ··<a·href="#external-documentation-files"·class="hover-link"> | 166 | ··<a·href="#external-documentation-files"·class="hover-link"> |
| 167 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 167 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 168 | ··</a> | 168 | ··</a> |
| 169 | ··<span·class="text">External·documentation·files</span> | 169 | ··<span·class="text">External·documentation·files</span> |
| 170 | </h2> | 170 | </h2> |
| 171 | <p>The·<code·class="inline">-moduledoc</code>·and·<code·class="inline">-doc</code>·can·also·be·placed·in·external·files.·To·do·so·use | 171 | <p>The·<code·class="inline">-moduledoc</code>·and·<code·class="inline">-doc</code>·can·also·be·placed·in·external·files.·To·do·so·use |
| 172 | <code·class="inline">-doc·{file,·"path/to/doc.md"}</code>·to·point·to·the·documentation.·The·path·used·is | 172 | <code·class="inline">-doc·{file,·"path/to/doc.md"}</code>·to·point·to·the·documentation.·The·path·used·is |
| 173 | relative·to·the·file·where·the·<code·class="inline">-doc</code>·attribute·is·located.·For·example:</p><pre><code·class="markdown">%%·doc/add.md | 173 | relative·to·the·file·where·the·<code·class="inline">-doc</code>·attribute·is·located.·For·example:</p><pre><code·class="markdown">%%·doc/add.md |
| 174 | Adds·two·numbers.</code></pre><p>and</p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%%·src/arith.erl</span><span·class="w"> | 174 | Adds·two·numbers.</code></pre><p>and</p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%%·src/arith.erl</span><span·class="w"> |
| 175 | </span><span·class="p">-</span><span·class="na">doc</span><span·class="p"·data-group-id=" | 175 | </span><span·class="p">-</span><span·class="na">doc</span><span·class="p"·data-group-id="5135018688-1">(</span><span·class="p"·data-group-id="5135018688-2">{</span><span·class="ss">file</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"../doc/add.md"</span><span·class="p"·data-group-id="5135018688-2">}</span><spa[·...·truncated·by·diffoscope;·len:·37,·SHA:·67e9e6d91594b758e3e6970c639829dbbab59476c8d64f22170fe3f76f41e2ed·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 176 | </span><span·class="nf">add</span><span·class="p"·data-group-id=" | 176 | </span><span·class="nf">add</span><span·class="p"·data-group-id="5135018688-3">(</span><span·class="n">One</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Two</span><span·class="p"·data-group-id="5135018688-3">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">One</span><span·class="w">·</span><span·class="o">+</span><span·class="w">·</span><span·class="n">Two</span><span·class="p">.</span></code></pre><h2·id="documenting-a-module"·class="section-heading"> |
| 177 | ··<a·href="#documenting-a-module"·class="hover-link"> | 177 | ··<a·href="#documenting-a-module"·class="hover-link"> |
| 178 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 178 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 179 | ··</a> | 179 | ··</a> |
| 180 | ··<span·class="text">Documenting·a·module</span> | 180 | ··<span·class="text">Documenting·a·module</span> |
| 181 | </h2> | 181 | </h2> |
| 182 | <p>The·module·description·should·include·details·on·how·to·use·the·API·and·examples | 182 | <p>The·module·description·should·include·details·on·how·to·use·the·API·and·examples |
| 183 | of·the·different·functions·working·together.·Here·is·a·good·place·to·use·images | 183 | of·the·different·functions·working·together.·Here·is·a·good·place·to·use·images |
| 184 | and·other·diagrams·to·better·show·the·usage·of·the·module.·Instead·of·writing·a | 184 | and·other·diagrams·to·better·show·the·usage·of·the·module.·Instead·of·writing·a |
| 185 | long·text·in·the·<code·class="inline">moduledoc</code>·attribute,·it·could·be·better·to·break·it·out·into | 185 | long·text·in·the·<code·class="inline">moduledoc</code>·attribute,·it·could·be·better·to·break·it·out·into |
| 186 | an·external·page.</p><p>The·<code·class="inline">moduledoc</code>·attribute·should·start·with·a·short·paragraph·describing·the | 186 | an·external·page.</p><p>The·<code·class="inline">moduledoc</code>·attribute·should·start·with·a·short·paragraph·describing·the |
| 187 | module·and·then·go·into·greater·details.·For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 187 | module·and·then·go·into·greater·details.·For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="5467954484-1">(</span><span·class="ss">arith</span><span·class="p"·data-group-id="5467954484-1">)</span><span·class="p">.</span><span·class="w"> |
| 188 | </span><span·class="p">-</span><span·class="na">moduledoc</span><span·class="w">·</span><span·class="s">""</span><span·class="s">" | 188 | </span><span·class="p">-</span><span·class="na">moduledoc</span><span·class="w">·</span><span·class="s">""</span><span·class="s">" |
| 189 | ···A·module·for·basic·arithmetic. | 189 | ···A·module·for·basic·arithmetic. |
| 190 | ···This·module·can·be·used·to·add·and·subtract·values.·For·example: | 190 | ···This·module·can·be·used·to·add·and·subtract·values.·For·example: |
| 191 | ···```erlang | 191 | ···```erlang |
| 192 | ···1>·arith:substract(arith:add(2,·3),·1). | 192 | ···1>·arith:substract(arith:add(2,·3),·1). |
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| 203 | <p>There·are·three·reserved·metadata·keys·for·<code·class="inline">-moduledoc</code>:</p><ul><li><code·class="inline">since·=>·unicode:chardata()</code>·-·Shows·in·which·version·of·the·application·the·module·was·added. | 203 | <p>There·are·three·reserved·metadata·keys·for·<code·class="inline">-moduledoc</code>:</p><ul><li><code·class="inline">since·=>·unicode:chardata()</code>·-·Shows·in·which·version·of·the·application·the·module·was·added. |
| 204 | If·this·is·added,·all·functions,·types,·and·callbacks·within·will·also·receive | 204 | If·this·is·added,·all·functions,·types,·and·callbacks·within·will·also·receive |
| 205 | the·same·<code·class="inline">since</code>·value·unless·specified·in·the·metadata·of·the·function,·type | 205 | the·same·<code·class="inline">since</code>·value·unless·specified·in·the·metadata·of·the·function,·type |
| 206 | or·callback.</li><li><code·class="inline">deprecated·=>·unicode:chardata()</code>·-·Shows·a·text·in·the·documentation·explaining·that·it·is | 206 | or·callback.</li><li><code·class="inline">deprecated·=>·unicode:chardata()</code>·-·Shows·a·text·in·the·documentation·explaining·that·it·is |
| 207 | deprecated·and·what·to·use·instead.</li><li><code·class="inline">format·=>·unicode:chardata()</code>·-·The·format·to·use·for·all·documentation·in·this·module.·The | 207 | deprecated·and·what·to·use·instead.</li><li><code·class="inline">format·=>·unicode:chardata()</code>·-·The·format·to·use·for·all·documentation·in·this·module.·The |
| 208 | default·is·<code·class="inline">text/markdown</code>.·It·should·be·written·using·the | 208 | default·is·<code·class="inline">text/markdown</code>.·It·should·be·written·using·the |
| 209 | <a·href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/MIME_types">mime·type</a> | 209 | <a·href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/MIME_types">mime·type</a> |
| 210 | of·the·format.</li></ul><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">moduledoc</span><span·class="w">·</span><span·class="p"·data-group-id=" | 210 | of·the·format.</li></ul><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">moduledoc</span><span·class="w">·</span><span·class="p"·data-group-id="8069405939-1">{</span><span·class="ss">file</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"../doc/arith.asciidoc"</span><span·class="p"·data-group-id="8069405939-1">}</span><span·class="p">.</span><span·class="w"> |
| 211 | </span><span·class="p">-</span><span·class="na">moduledoc</span><span·class="w">·</span><span·class="p"·data-group-id=" | 211 | </span><span·class="p">-</span><span·class="na">moduledoc</span><span·class="w">·</span><span·class="p"·data-group-id="8069405939-2">#{</span><span·class="ss">since</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"0.1"</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">format</span><span·class=[·...·truncated·by·diffoscope;·len:·153,·SHA:·134dcabac5a36cd72695a94b5c8461f2871e0031f58111075d224463f524e3e3·...·]-2">}</span><span·class="p">.</span><span·class="w"> |
| 212 | </span><span·class="p">-</span><span·class="na">moduledoc</span><span·class="w">·</span><span·class="p"·data-group-id=" | 212 | </span><span·class="p">-</span><span·class="na">moduledoc</span><span·class="w">·</span><span·class="p"·data-group-id="8069405939-3">#{</span><span·class="ss">deprecated</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"Use·the·Erlang·arithmetic·operators·instead."</span><span·class="p"·data-group-id="8069405939-3">}</span><span·class="p">.</span></code></pre><h2·id="documenting-functions-user-defined-types-and-callbacks"·class="section-heading"> |
| 213 | ··<a·href="#documenting-functions-user-defined-types-and-callbacks"·class="hover-link"> | 213 | ··<a·href="#documenting-functions-user-defined-types-and-callbacks"·class="hover-link"> |
| 214 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 214 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 215 | ··</a> | 215 | ··</a> |
| 216 | ··<span·class="text">Documenting·functions,·user-defined·types,·and·callbacks</span> | 216 | ··<span·class="text">Documenting·functions,·user-defined·types,·and·callbacks</span> |
| 217 | </h2> | 217 | </h2> |
| 218 | <p>Functions,·types,·and·callbacks·can·be·documented·using·the·<code·class="inline">-doc</code>·attribute. | 218 | <p>Functions,·types,·and·callbacks·can·be·documented·using·the·<code·class="inline">-doc</code>·attribute. |
| 219 | Each·entry·should·start·with·a·short·paragraph·describing·the·purpose·of·entity, | 219 | Each·entry·should·start·with·a·short·paragraph·describing·the·purpose·of·entity, |
| 220 | and·then·go·into·greater·detail·in·needed.</p><p>It·is·not·recommended·to·include·images·or·diagrams·in·this·documentation·as·it | 220 | and·then·go·into·greater·detail·in·needed.</p><p>It·is·not·recommended·to·include·images·or·diagrams·in·this·documentation·as·it |
| 221 | is·used·by·IDEs·and·<a·href="../../lib/stdlib-7.0/doc/html/c.html#h/1"><code·class="inline">c:h/1</code></a>·to·show·the·documentation·to·the·user.</p><p>For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">doc</span><span·class="w">·</span><span·class="s">""" | 221 | is·used·by·IDEs·and·<a·href="../../lib/stdlib-7.0/doc/html/c.html#h/1"><code·class="inline">c:h/1</code></a>·to·show·the·documentation·to·the·user.</p><p>For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">doc</span><span·class="w">·</span><span·class="s">""" |
| 222 | A·number·that·can·be·used·by·the·arith·module. | 222 | A·number·that·can·be·used·by·the·arith·module. |
| 223 | We·use·a·special·number·here·so·that·we·know | 223 | We·use·a·special·number·here·so·that·we·know |
| 224 | that·this·number·comes·from·this·module. | 224 | that·this·number·comes·from·this·module. |
| 225 | """</span><span·class="p">.</span><span·class="w"> | 225 | """</span><span·class="p">.</span><span·class="w"> |
| 226 | </span><span·class="p">-</span><span·class="na">opaque</span><span·class="w">·</span><span·class="nf">number</span><span·class="p"·data-group-id=" | 226 | </span><span·class="p">-</span><span·class="na">opaque</span><span·class="w">·</span><span·class="nf">number</span><span·class="p"·data-group-id="2399875709-1">(</span><span·class="p"·data-group-id="2399875709-1">)</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id="2399875709-2">{</span><span·class="ss">arith</span><sp[·...·truncated·by·diffoscope;·len:·276,·SHA:·28e5c65ed1b55f44f7635c39772bc884420ffe7fe75bfea281243f74038fba49·...·]-2">}</span><span·class="p">.</span><span·class="w"> |
| 227 | </span><span·class="w"> | 227 | </span><span·class="w"> |
| 228 | </span><span·class="p">-</span><span·class="na">doc</span><span·class="w">·</span><span·class="s">""" | 228 | </span><span·class="p">-</span><span·class="na">doc</span><span·class="w">·</span><span·class="s">""" |
| 229 | Adds·two·numbers. | 229 | Adds·two·numbers. |
| 230 | ###·Example: | 230 | ###·Example: |
| 231 | ``` | 231 | ``` |
| 232 | 1>·arith:add(arith:number(1),·arith:number(2)).·{number,·3} | 232 | 1>·arith:add(arith:number(1),·arith:number(2)).·{number,·3} |
| 233 | ``` | 233 | ``` |
| 234 | """</span><span·class="p">.</span><span·class="w"> | 234 | """</span><span·class="p">.</span><span·class="w"> |
| 235 | </span><span·class="p">-</span><span·class="na">spec</span><span·class="w">·</span><span·class="nf">add</span><span·class="p"·data-group-id=" | 235 | </span><span·class="p">-</span><span·class="na">spec</span><span·class="w">·</span><span·class="nf">add</span><span·class="p"·data-group-id="2399875709-4">(</span><span·class="nf">number</span><span·class="p"·data-group-id="2399875709-5">(</span><span·class="p"·data-group-id="2399875709-5">)</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">number</span><span·class="p"·data[·...·truncated·by·diffoscope;·len:·339,·SHA:·c47a02ba955fa1f4bb56f34c38613d0aa7634f2c00f34b2c8e52c39c9b182eda·...·]-7">)</span><span·class="p">.</span><span·class="w"> |
| 236 | </span><span·class="nf">add</span><span·class="p"·data-group-id=" | 236 | </span><span·class="nf">add</span><span·class="p"·data-group-id="2399875709-8">(</span><span·class="p"·data-group-id="2399875709-9">{</span><span·class="ss">number</span><span·class="p">,</span><span·class="w">·</span><span·class="n">One</span><span·class="p"·data-group-id="2399875709-9">}</span><span·class="p">,</span>[·...·truncated·by·diffoscope;·len:·662,·SHA:·4962185febc1e079e4ff03ef7169e3de7e1b30837f3b4006ef43c1ea18e285ea·...·]-11">}</span><span·class="p">.</span></code></pre><h3·id="doc-metadata"·class="section-heading"> |
| 237 | ··<a·href="#doc-metadata"·class="hover-link"> | 237 | ··<a·href="#doc-metadata"·class="hover-link"> |
| 238 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 238 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 239 | ··</a> | 239 | ··</a> |
| 240 | ··<span·class="text">Doc·metadata</span> | 240 | ··<span·class="text">Doc·metadata</span> |
| 241 | </h3> | 241 | </h3> |
| 242 | <p>There·are·four·reserved·metadata·keys·for·<code·class="inline">-doc</code>:</p><ul><li><p><code·class="inline">since·=>·unicode:chardata()</code>·-·Shows·which·version·of·the·application·the | 242 | <p>There·are·four·reserved·metadata·keys·for·<code·class="inline">-doc</code>:</p><ul><li><p><code·class="inline">since·=>·unicode:chardata()</code>·-·Shows·which·version·of·the·application·the |
| 243 | module·was·added.</p></li><li><p><code·class="inline">deprecated·=>·unicode:chardata()</code>·-·Shows·a·text·in·the·documentation | 243 | module·was·added.</p></li><li><p><code·class="inline">deprecated·=>·unicode:chardata()</code>·-·Shows·a·text·in·the·documentation |
| 244 | explaining·that·it·is·deprecated·and·what·to·use·instead.·The·compiler·will | 244 | explaining·that·it·is·deprecated·and·what·to·use·instead.·The·compiler·will |
| 245 | automatically·insert·this·key·if·there·is·a·<code·class="inline">-deprecated</code>·attribute·marking·a | 245 | automatically·insert·this·key·if·there·is·a·<code·class="inline">-deprecated</code>·attribute·marking·a |
| 246 | function·as·deprecated.</p></li><li><p><code·class="inline">group·=>·unicode:chardata()</code>·-·A·group·that·the·function,·type·or·callback·belongs·to. | 246 | function·as·deprecated.</p></li><li><p><code·class="inline">group·=>·unicode:chardata()</code>·-·A·group·that·the·function,·type·or·callback·belongs·to. |
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| 122 | ··<span·class="text">Drivers·and·Concurrency</span> | 122 | ··<span·class="text">Drivers·and·Concurrency</span> |
| 123 | </h2> | 123 | </h2> |
| 124 | <p>The·runtime·system·always·takes·a·lock·before·running·any·code·in·a·driver.</p><p>By·default,·that·lock·is·at·the·driver·level,·that·is,·if·several·ports·have | 124 | <p>The·runtime·system·always·takes·a·lock·before·running·any·code·in·a·driver.</p><p>By·default,·that·lock·is·at·the·driver·level,·that·is,·if·several·ports·have |
| 125 | been·opened·to·the·same·driver,·only·code·for·one·port·at·the·same·time·can·be | 125 | been·opened·to·the·same·driver,·only·code·for·one·port·at·the·same·time·can·be |
| 126 | running.</p><p>A·driver·can·be·configured·to·have·one·lock·for·each·port·instead.</p><p>If·a·driver·is·used·in·a·functional·way·(that·is,·holds·no·state,·but·only·does | 126 | running.</p><p>A·driver·can·be·configured·to·have·one·lock·for·each·port·instead.</p><p>If·a·driver·is·used·in·a·functional·way·(that·is,·holds·no·state,·but·only·does |
| 127 | some·heavy·calculation·and·returns·a·result),·several·ports·with·registered | 127 | some·heavy·calculation·and·returns·a·result),·several·ports·with·registered |
| 128 | names·can·be·opened·beforehand,·and·the·port·to·be·used·can·be·chosen·based·on | 128 | names·can·be·opened·beforehand,·and·the·port·to·be·used·can·be·chosen·based·on |
| 129 | the·scheduler·ID·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">define</span><span·class="p"·data-group-id="4 | 129 | the·scheduler·ID·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">define</span><span·class="p"·data-group-id="4240739347-1">(</span><span·class="n">PORT_NAMES</span><span·class="p"·data-group-id="4240739347-2">(</span><span·class="p"·data-group-id="4240739347-2">)</span><span·class="p">,</span><span·class="w"> |
| 130 | » </span><span·class="p"·data-group-id="4 | 130 | » </span><span·class="p"·data-group-id="4240739347-3">{</span><span·class="ss">some_driver_01</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">some_driver_02</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">some_driver_03</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">some_driver_04</span><span·class="p">,</span><span·class="w"> |
| 131 | » ·</span><span·class="ss">some_driver_05</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">some_driver_06</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">some_driver_07</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">some_driver_08</span><span·class="p">,</span><span·class="w"> | 131 | » ·</span><span·class="ss">some_driver_05</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">some_driver_06</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">some_driver_07</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">some_driver_08</span><span·class="p">,</span><span·class="w"> |
| 132 | » ·</span><span·class="ss">some_driver_09</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">some_driver_10</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">some_driver_11</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">some_driver_12</span><span·class="p">,</span><span·class="w"> | 132 | » ·</span><span·class="ss">some_driver_09</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">some_driver_10</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">some_driver_11</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">some_driver_12</span><span·class="p">,</span><span·class="w"> |
| 133 | » ·</span><span·class="ss">some_driver_13</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">some_driver_14</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">some_driver_15</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">some_driver_16</span><span·class="p"·data-group-id="4 | 133 | » ·</span><span·class="ss">some_driver_13</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">some_driver_14</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">some_driver_15</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">some_driver_16</span><span·class="p"·data-group-id="4240739347-3">}</span><span·class="p"·data-group-id="4240739347-1">)</span><span·class="p">.</span><span·class="w"> |
| 134 | </span><span·class="nf">client_port</span><span·class="p"·data-group-id="4 | 134 | </span><span·class="nf">client_port</span><span·class="p"·data-group-id="4240739347-4">(</span><span·class="p"·data-group-id="4240739347-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 135 | ····</span><span·class="nf">element</span><span·class="p"·data-group-id="4762916501-5">(</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">system_info</span><span·class="p"·data-group-id="4762916501-6">(</span><span·class="ss">scheduler_id</span><span·class="p"·data-group-id="4762916501-6">)</span><span·class="w">·</span><span·class="ow">rem</span><span·class="w">·</span><span·class="nf">tuple_size</span><span·class="p"·data-group-id="4762916501-7">(</span><span·class="o">?</span><span·class="n">PORT_NAMES</span><span·class="p"·data-group-id="4762916501-8">(</span><span·class="p"·data-group-id="4762916501-8">)</span><span·class="p"·data-group-id="4762916501-7">)</span><span·class="w">·</span><span·class="o">+</span><span·class="w">·</span><span·class="mi">1</span><span·class="p">,</span><span·class="w"> | ||
| 136 | 135 | ····</span><span·class="nf">element</span><span·class="p"·data-group-id="4240739347-5">(</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">system_info</span><span·class="p"·data-group-id="4240739347-6">(</span><span·class="ss">sc[·...·truncated·by·diffoscope;·len:·585,·SHA:·94e46f2e6efea42b93c7ef2ddbfebe9660f1c0a51d87d942138b6c075355e67a·...·] | |
| 136 | » ····</span><span·class="o">?</span><span·class="n">PORT_NAMES</span><span·class="p"·data-group-id="4240739347-9">(</span><span·class="p"·data-group-id="4240739347-9">)</span><span·class="p"·data-group-id="4240739347-5">)</span><span·class="p">.</span></code></pre><p>As·long·as·there·are·no·more·than·16·schedulers,·there·will·never·be·any·lock | ||
| 137 | contention·on·the·port·lock·for·the·driver.</p><h2·id="avoiding-copying-binaries-when-calling-a-driver"·class="section-heading"> | 137 | contention·on·the·port·lock·for·the·driver.</p><h2·id="avoiding-copying-binaries-when-calling-a-driver"·class="section-heading"> |
| 138 | ··<a·href="#avoiding-copying-binaries-when-calling-a-driver"·class="hover-link"> | 138 | ··<a·href="#avoiding-copying-binaries-when-calling-a-driver"·class="hover-link"> |
| 139 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 139 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 140 | ··</a> | 140 | ··</a> |
| 141 | ··<span·class="text">Avoiding·Copying·Binaries·When·Calling·a·Driver</span> | 141 | ··<span·class="text">Avoiding·Copying·Binaries·When·Calling·a·Driver</span> |
| 142 | </h2> | 142 | </h2> |
| 143 | <p>There·are·basically·two·ways·to·avoid·copying·a·binary·that·is·sent·to·a·driver:</p><ul><li><p>If·the·<code·class="inline">Data</code>·argument·for·<a·href="../../erts-16.0/doc/html/erlang.html#port_control/3"><code·class="inline">port_control/3</code></a>·is·a | 143 | <p>There·are·basically·two·ways·to·avoid·copying·a·binary·that·is·sent·to·a·driver:</p><ul><li><p>If·the·<code·class="inline">Data</code>·argument·for·<a·href="../../erts-16.0/doc/html/erlang.html#port_control/3"><code·class="inline">port_control/3</code></a>·is·a |
| Offset 225, 15 lines modified | Offset 225, 15 lines modified | ||
| 225 | ······<p·class="built-using"> | 225 | ······<p·class="built-using"> |
| 226 | ········Built·using | 226 | ········Built·using |
| 227 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 227 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 228 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 228 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 229 | ······</p> | 229 | ······</p> |
| 230 | <p>Copyright·©·1996-202 | 230 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 231 | ····</footer> | 231 | ····</footer> |
| 232 | ··</div> | 232 | ··</div> |
| 233 | </main> | 233 | </main> |
| 234 | </div> | 234 | </div> |
| 235 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 235 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 236 | ··<script> | 236 | ··<script> |
| 237 | ··let·initialized·=·false; | 237 | ··let·initialized·=·false; |
| Offset 122, 67 lines modified | Offset 122, 67 lines modified | ||
| 122 | ··<span·class="text">Pattern·Matching</span> | 122 | ··<span·class="text">Pattern·Matching</span> |
| 123 | </h2> | 123 | </h2> |
| 124 | <p>Pattern·matching·in·function·head·as·well·as·in·<code·class="inline">case</code>·and·<code·class="inline">receive</code>·clauses·are | 124 | <p>Pattern·matching·in·function·head·as·well·as·in·<code·class="inline">case</code>·and·<code·class="inline">receive</code>·clauses·are |
| 125 | optimized·by·the·compiler.·With·a·few·exceptions,·there·is·nothing·to·gain·by | 125 | optimized·by·the·compiler.·With·a·few·exceptions,·there·is·nothing·to·gain·by |
| 126 | rearranging·clauses.</p><p>One·exception·is·pattern·matching·of·binaries.·The·compiler·does·not·rearrange | 126 | rearranging·clauses.</p><p>One·exception·is·pattern·matching·of·binaries.·The·compiler·does·not·rearrange |
| 127 | clauses·that·match·binaries.·Placing·the·clause·that·matches·against·the·empty | 127 | clauses·that·match·binaries.·Placing·the·clause·that·matches·against·the·empty |
| 128 | binary·<em>last</em>·is·usually·slightly·faster·than·placing·it·<em>first</em>.</p><p>The·following·is·a·rather·unnatural·example·to·show·another·exception·where | 128 | binary·<em>last</em>·is·usually·slightly·faster·than·placing·it·<em>first</em>.</p><p>The·following·is·a·rather·unnatural·example·to·show·another·exception·where |
| 129 | rearranging·clauses·is·beneficial:</p><p><strong>DO·NOT</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">atom_map1</span><span·class="p"·data-group-id=" | 129 | rearranging·clauses·is·beneficial:</p><p><strong>DO·NOT</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">atom_map1</span><span·class="p"·data-group-id="3361580490-1">(</span><span·class="ss">one</span><span·class="p"·data-group-id="3361580490-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="mi">1</span><span·class="p">;</span><span·class="w"> |
| 130 | </span><span·class="nf">atom_map1</span><span·class="p"·data-group-id=" | 130 | </span><span·class="nf">atom_map1</span><span·class="p"·data-group-id="3361580490-2">(</span><span·class="ss">two</span><span·class="p"·data-group-id="3361580490-2">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="mi">2</span><span·class="p">;</span><span·class="w"> |
| 131 | </span><span·class="nf">atom_map1</span><span·class="p"·data-group-id=" | 131 | </span><span·class="nf">atom_map1</span><span·class="p"·data-group-id="3361580490-3">(</span><span·class="ss">three</span><span·class="p"·data-group-id="3361580490-3">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="mi">3</span><span·class="p">;</span><span·class="w"> |
| 132 | </span><span·class="nf">atom_map1</span><span·class="p"·data-group-id=" | 132 | </span><span·class="nf">atom_map1</span><span·class="p"·data-group-id="3361580490-4">(</span><span·class="n">Int</span><span·class="p"·data-group-id="3361580490-4">)</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><span·class="nf">is_integer</span><span·class="p"·data-group-id="3361580490-5">([·...·truncated·by·diffoscope;·len:·73,·SHA:·c8be4fe57d7bdddf793bb9e79137b17edbb0ec2b6e728ebe61c12cc388c91a29·...·]0-5">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">Int</span><span·class="p">;</span><span·class="w"> |
| 133 | </span><span·class="nf">atom_map1</span><span·class="p"·data-group-id=" | 133 | </span><span·class="nf">atom_map1</span><span·class="p"·data-group-id="3361580490-6">(</span><span·class="ss">four</span><span·class="p"·data-group-id="3361580490-6">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="mi">4</span><span·class="p">;</span><span·class="w"> |
| 134 | </span><span·class="nf">atom_map1</span><span·class="p"·data-group-id=" | 134 | </span><span·class="nf">atom_map1</span><span·class="p"·data-group-id="3361580490-7">(</span><span·class="ss">five</span><span·class="p"·data-group-id="3361580490-7">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="mi">5</span><span·class="p">;</span><span·class="w"> |
| 135 | </span><span·class="nf">atom_map1</span><span·class="p"·data-group-id=" | 135 | </span><span·class="nf">atom_map1</span><span·class="p"·data-group-id="3361580490-8">(</span><span·class="ss">six</span><span·class="p"·data-group-id="3361580490-8">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="mi">6</span><span·class="p">.</span></code></pre><p>The·problem·is·the·clause·with·the·variable·<code·class="inline">Int</code>.·As·a·variable·can·match |
| 136 | anything,·including·the·atoms·<code·class="inline">four</code>,·<code·class="inline">five</code>,·and·<code·class="inline">six</code>,·which·the·following | 136 | anything,·including·the·atoms·<code·class="inline">four</code>,·<code·class="inline">five</code>,·and·<code·class="inline">six</code>,·which·the·following |
| 137 | clauses·also·match,·the·compiler·must·generate·suboptimal·code·that·executes·as | 137 | clauses·also·match,·the·compiler·must·generate·suboptimal·code·that·executes·as |
| 138 | follows:</p><ul><li>First,·the·input·value·is·compared·to·<code·class="inline">one</code>,·<code·class="inline">two</code>,·and·<code·class="inline">three</code>·(using·a | 138 | follows:</p><ul><li>First,·the·input·value·is·compared·to·<code·class="inline">one</code>,·<code·class="inline">two</code>,·and·<code·class="inline">three</code>·(using·a |
| 139 | single·instruction·that·does·a·binary·search;·thus,·quite·efficient·even·if | 139 | single·instruction·that·does·a·binary·search;·thus,·quite·efficient·even·if |
| 140 | there·are·many·values)·to·select·which·one·of·the·first·three·clauses·to | 140 | there·are·many·values)·to·select·which·one·of·the·first·three·clauses·to |
| 141 | execute·(if·any).</li><li>If·none·of·the·first·three·clauses·match,·the·fourth·clause·match·as·a | 141 | execute·(if·any).</li><li>If·none·of·the·first·three·clauses·match,·the·fourth·clause·match·as·a |
| 142 | variable·always·matches.</li><li>If·the·guard·test·<a·href="../../erts-16.0/doc/html/erlang.html#is_integer/1"><code·class="inline">is_integer(Int)</code></a>·succeeds,·the·fourth | 142 | variable·always·matches.</li><li>If·the·guard·test·<a·href="../../erts-16.0/doc/html/erlang.html#is_integer/1"><code·class="inline">is_integer(Int)</code></a>·succeeds,·the·fourth |
| 143 | clause·is·executed.</li><li>If·the·guard·test·fails,·the·input·value·is·compared·to·<code·class="inline">four</code>,·<code·class="inline">five</code>,·and | 143 | clause·is·executed.</li><li>If·the·guard·test·fails,·the·input·value·is·compared·to·<code·class="inline">four</code>,·<code·class="inline">five</code>,·and |
| 144 | <code·class="inline">six</code>,·and·the·appropriate·clause·is·selected.·(There·is·a·<code·class="inline">function_clause</code> | 144 | <code·class="inline">six</code>,·and·the·appropriate·clause·is·selected.·(There·is·a·<code·class="inline">function_clause</code> |
| 145 | exception·if·none·of·the·values·matched.)</li></ul><p>Rewriting·to·either:</p><p><strong>DO</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">atom_map2</span><span·class="p"·data-group-id="59 | 145 | exception·if·none·of·the·values·matched.)</li></ul><p>Rewriting·to·either:</p><p><strong>DO</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">atom_map2</span><span·class="p"·data-group-id="8459132355-1">(</span><span·class="ss">one</span><span·class="p"·data-group-id="8459132355-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="mi">1</span><span·class="p">;</span><span·class="w"> |
| 146 | </span><span·class="nf">atom_map2</span><span·class="p"·data-group-id="59 | 146 | </span><span·class="nf">atom_map2</span><span·class="p"·data-group-id="8459132355-2">(</span><span·class="ss">two</span><span·class="p"·data-group-id="8459132355-2">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="mi">2</span><span·class="p">;</span><span·class="w"> |
| 147 | </span><span·class="nf">atom_map2</span><span·class="p"·data-group-id="59 | 147 | </span><span·class="nf">atom_map2</span><span·class="p"·data-group-id="8459132355-3">(</span><span·class="ss">three</span><span·class="p"·data-group-id="8459132355-3">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="mi">3</span><span·class="p">;</span><span·class="w"> |
| 148 | </span><span·class="nf">atom_map2</span><span·class="p"·data-group-id="59 | 148 | </span><span·class="nf">atom_map2</span><span·class="p"·data-group-id="8459132355-4">(</span><span·class="ss">four</span><span·class="p"·data-group-id="8459132355-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="mi">4</span><span·class="p">;</span><span·class="w"> |
| 149 | </span><span·class="nf">atom_map2</span><span·class="p"·data-group-id="59 | 149 | </span><span·class="nf">atom_map2</span><span·class="p"·data-group-id="8459132355-5">(</span><span·class="ss">five</span><span·class="p"·data-group-id="8459132355-5">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="mi">5</span><span·class="p">;</span><span·class="w"> |
| 150 | </span><span·class="nf">atom_map2</span><span·class="p"·data-group-id="59 | 150 | </span><span·class="nf">atom_map2</span><span·class="p"·data-group-id="8459132355-6">(</span><span·class="ss">six</span><span·class="p"·data-group-id="8459132355-6">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="mi">6</span><span·class="p">;</span><span·class="w"> |
| 151 | </span><span·class="nf">atom_map2</span><span·class="p"·data-group-id="59 | 151 | </span><span·class="nf">atom_map2</span><span·class="p"·data-group-id="8459132355-7">(</span><span·class="n">Int</span><span·class="p"·data-group-id="8459132355-7">)</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><span·class="nf">is_integer</span><span·class="p"·data-group-id="8459132355-8">([·...·truncated·by·diffoscope;·len:·703,·SHA:·be80092dc08506c53923093417b90c74193b0ff6ef6fd8167533525a68b4d143·...·]-2">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">Int</span><span·class="p">;</span><span·class="w"> |
| 152 | </span><span·class="nf">atom_map3</span><span·class="p"·data-group-id="5 | 152 | </span><span·class="nf">atom_map3</span><span·class="p"·data-group-id="5019479375-3">(</span><span·class="ss">one</span><span·class="p"·data-group-id="5019479375-3">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="mi">1</span><span·class="p">;</span><span·class="w"> |
| 153 | </span><span·class="nf">atom_map3</span><span·class="p"·data-group-id="5 | 153 | </span><span·class="nf">atom_map3</span><span·class="p"·data-group-id="5019479375-4">(</span><span·class="ss">two</span><span·class="p"·data-group-id="5019479375-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="mi">2</span><span·class="p">;</span><span·class="w"> |
| 154 | </span><span·class="nf">atom_map3</span><span·class="p"·data-group-id="5 | 154 | </span><span·class="nf">atom_map3</span><span·class="p"·data-group-id="5019479375-5">(</span><span·class="ss">three</span><span·class="p"·data-group-id="5019479375-5">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="mi">3</span><span·class="p">;</span><span·class="w"> |
| 155 | </span><span·class="nf">atom_map3</span><span·class="p"·data-group-id="5 | 155 | </span><span·class="nf">atom_map3</span><span·class="p"·data-group-id="5019479375-6">(</span><span·class="ss">four</span><span·class="p"·data-group-id="5019479375-6">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="mi">4</span><span·class="p">;</span><span·class="w"> |
| 156 | </span><span·class="nf">atom_map3</span><span·class="p"·data-group-id="5 | 156 | </span><span·class="nf">atom_map3</span><span·class="p"·data-group-id="5019479375-7">(</span><span·class="ss">five</span><span·class="p"·data-group-id="5019479375-7">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="mi">5</span><span·class="p">;</span><span·class="w"> |
| 157 | </span><span·class="nf">atom_map3</span><span·class="p"·data-group-id="5 | 157 | </span><span·class="nf">atom_map3</span><span·class="p"·data-group-id="5019479375-8">(</span><span·class="ss">six</span><span·class="p"·data-group-id="5019479375-8">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="mi">6</span><span·class="p">.</span></code></pre><p>gives·slightly[·...·truncated·by·diffoscope;·len:·540,·SHA:·f427898a5aec546b7191b5836189c889eda1bc4f106c97605c93d8e0043dd7fc·...·]-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 158 | ····</span><span·class="n">Ys</span><span·class="p">;</span><span·class="w"> | 158 | ····</span><span·class="n">Ys</span><span·class="p">;</span><span·class="w"> |
| 159 | </span><span·class="nf">map_pairs1</span><span·class="p"·data-group-id=" | 159 | </span><span·class="nf">map_pairs1</span><span·class="p"·data-group-id="9936415409-3">(</span><span·class="p">_</span><span·class="n">Map</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Xs</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9936415409-4">[</span><span·clas[·...·truncated·by·diffoscope;·len:·84,·SHA:·867cb79cfee265c613766040ac9a4f4cad55a48a88ce689a1b5370a8a67f692d·...·]-3">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 160 | ····</span><span·class="n">Xs</span><span·class="p">;</span><span·class="w"> | 160 | ····</span><span·class="n">Xs</span><span·class="p">;</span><span·class="w"> |
| 161 | </span><span·class="nf">map_pairs1</span><span·class="p"·data-group-id=" | 161 | </span><span·class="nf">map_pairs1</span><span·class="p"·data-group-id="9936415409-5">(</span><span·class="n">Map</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9936415409-6">[</span><span·class="n">X</span><span·class="p">|</span><span·class="n">Xs</span><span·class="p"·data-group-id="993[·...·truncated·by·diffoscope;·len:·287,·SHA:·70e30743b1d147de97b7ff1db5edd2f061f1963e23a3915d9a26a17461ba6961·...·]-5">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 162 | ····</span><span·class="p"·data-group-id=" | 162 | ····</span><span·class="p"·data-group-id="9936415409-8">[</span><span·class="n">Map</span><span·class="p"·data-group-id="9936415409-9">(</span><span·class="n">X</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Y</span><span·class="p"·data-group-id="9936415409-9">)</span><span·[·...·truncated·by·diffoscope;·len:·373,·SHA:·583a637a5a0b1ccdb1f4068f033f1ac499c1b75ec07c721e2ca4dd91da236eb5·...·]-8">]</span><span·class="p">.</span></code></pre><p>The·first·argument·is·<em>not</em>·a·problem.·It·is·variable,·but·it·is·a·variable·in |
| 163 | all·clauses.·The·problem·is·the·variable·in·the·second·argument,·<code·class="inline">Xs</code>,·in·the | 163 | all·clauses.·The·problem·is·the·variable·in·the·second·argument,·<code·class="inline">Xs</code>,·in·the |
| 164 | middle·clause.·Because·the·variable·can·match·anything,·the·compiler·is·not | 164 | middle·clause.·Because·the·variable·can·match·anything,·the·compiler·is·not |
| 165 | allowed·to·rearrange·the·clauses,·but·must·generate·code·that·matches·them·in | 165 | allowed·to·rearrange·the·clauses,·but·must·generate·code·that·matches·them·in |
| 166 | the·order·written.</p><p>If·the·function·is·rewritten·as·follows,·the·compiler·is·free·to·rearrange·the | 166 | the·order·written.</p><p>If·the·function·is·rewritten·as·follows,·the·compiler·is·free·to·rearrange·the |
| 167 | clauses:</p><p><strong>DO</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">map_pairs2</span><span·class="p"·data-group-id=" | 167 | clauses:</p><p><strong>DO</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">map_pairs2</span><span·class="p"·data-group-id="2599062600-1">(</span><span·class="p">_</span><span·class="n">Map</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2599062600-2">[</span><span·class="p"·data-group-id="2599062600-2">]</span><span·class="p">,</span><span·[·...·truncated·by·diffoscope;·len:·84,·SHA:·7528ca09e8a8bf6221cf6944f1bc80157925f1d8455b64d6e067051ba2d622f0·...·]-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 168 | ····</span><span·class="n">Ys</span><span·class="p">;</span><span·class="w"> | 168 | ····</span><span·class="n">Ys</span><span·class="p">;</span><span·class="w"> |
| 169 | </span><span·class="nf">map_pairs2</span><span·class="p"·data-group-id=" | 169 | </span><span·class="nf">map_pairs2</span><span·class="p"·data-group-id="2599062600-3">(</span><span·class="p">_</span><span·class="n">Map</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2599062600-4">[</span><span·class="p">_</span><span·class="p">|</span><span·class="p">_</span><span·class[·...·truncated·by·diffoscope;·len:·310,·SHA:·bb9738272d40c21eb6c4618d43691feaa845dd5f7114339062f79c7fd148acd6·...·]-3">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 170 | ····</span><span·class="n">Xs</span><span·class="p">;</span><span·class="w"> | 170 | ····</span><span·class="n">Xs</span><span·class="p">;</span><span·class="w"> |
| 171 | </span><span·class="nf">map_pairs2</span><span·class="p"·data-group-id=" | 171 | </span><span·class="nf">map_pairs2</span><span·class="p"·data-group-id="2599062600-6">(</span><span·class="n">Map</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2599062600-7">[</span><span·class="n">X</span><span·class="p">|</span><span·class="n">Xs</span><span·class="p"·data-group-id="259[·...·truncated·by·diffoscope;·len:·287,·SHA:·c5fad166fd197eeff3d7f303bcfd32fd195b83998e8aa9acd0836e8de0039bf5·...·]-6">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 172 | ····</span><span·class="p"·data-group-id=" | 172 | ····</span><span·class="p"·data-group-id="2599062600-9">[</span><span·class="n">Map</span><span·class="p"·data-group-id="2599062600-10">(</span><span·class="n">X</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Y</span><span·class="p"·data-group-id="2599062600-10">)</span><spa[·...·truncated·by·diffoscope;·len:·898,·SHA:·f9c769bc6d10784d1647dd594e3c107eaa8e61823c97334b195b5956e53e41a0·...·]-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 173 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="n">Xs0</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> | 173 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="n">Xs0</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 174 | » </span><span·class="p"·data-group-id=" | 174 | » </span><span·class="p"·data-group-id="8123640866-2">[</span><span·class="n">X</span><span·class="p">|</span><span·class="n">Xs</span><span·class="p"·data-group-id="8123640866-2">]</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 175 | » ····</span><span·class="k">case</span><span·class="w">·</span><span·class="n">Ys0</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> | 175 | » ····</span><span·class="k">case</span><span·class="w">·</span><span·class="n">Ys0</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 176 | » » </span><span·class="p"·data-group-id=" | 176 | » » </span><span·class="p"·data-group-id="8123640866-3">[</span><span·class="n">Y</span><span·class="p">|</span><span·class="n">Ys</span><span·class="p"·data-group-id="8123640866-3">]</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 177 | » » ····</span><span·class="p"·data-group-id=" | 177 | » » ····</span><span·class="p"·data-group-id="8123640866-4">[</span><span·class="n">Map</span><span·class="p"·data-group-id="8123640866-5">(</span><span·class="n">X</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Y</span><span·class="p"·data-group-id="8123640866-5">)</span><span·[·...·truncated·by·diffoscope;·len:·379,·SHA:·d5b35211cf7380d880847425d16007a3a6bf533362139db012c4f2b8fac3e2f2·...·]-4">]</span><span·class="p">;</span><span·class="w"> |
| 178 | » » </span><span·class="p"·data-group-id=" | 178 | » » </span><span·class="p"·data-group-id="8123640866-7">[</span><span·class="p"·data-group-id="8123640866-7">]</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 179 | » » ····</span><span·class="n">Xs0</span><span·class="w"> | 179 | » » ····</span><span·class="n">Xs0</span><span·class="w"> |
| 180 | » ····</span><span·class="k">end</span><span·class="p">;</span><span·class="w"> | 180 | » ····</span><span·class="k">end</span><span·class="p">;</span><span·class="w"> |
| 181 | » </span><span·class="p"·data-group-id=" | 181 | » </span><span·class="p"·data-group-id="8123640866-8">[</span><span·class="p"·data-group-id="8123640866-8">]</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 182 | » ····</span><span·class="n">Ys0</span><span·class="w"> | 182 | » ····</span><span·class="n">Ys0</span><span·class="w"> |
| 183 | ····</span><span·class="k">end</span><span·class="p">.</span></code></pre><p>This·is·slightly·faster·for·probably·the·most·common·case·that·the·input·lists | 183 | ····</span><span·class="k">end</span><span·class="p">.</span></code></pre><p>This·is·slightly·faster·for·probably·the·most·common·case·that·the·input·lists |
| 184 | are·not·empty·or·very·short.·(Another·advantage·is·that·Dialyzer·can·deduce·a | 184 | are·not·empty·or·very·short.·(Another·advantage·is·that·Dialyzer·can·deduce·a |
| 185 | better·type·for·the·<code·class="inline">Xs</code>·variable.)</p><h2·id="function-calls"·class="section-heading"> | 185 | better·type·for·the·<code·class="inline">Xs</code>·variable.)</p><h2·id="function-calls"·class="section-heading"> |
| 186 | ··<a·href="#function-calls"·class="hover-link"> | 186 | ··<a·href="#function-calls"·class="hover-link"> |
| 187 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 187 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 188 | ··</a> | 188 | ··</a> |
| Offset 250, 15 lines modified | Offset 250, 15 lines modified | ||
| 250 | ······<p·class="built-using"> | 250 | ······<p·class="built-using"> |
| 251 | ········Built·using | 251 | ········Built·using |
| 252 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 252 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 253 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 253 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 254 | ······</p> | 254 | ······</p> |
| 255 | <p>Copyright·©·1996-202 | 255 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 256 | ····</footer> | 256 | ····</footer> |
| 257 | ··</div> | 257 | ··</div> |
| 258 | </main> | 258 | </main> |
| 259 | </div> | 259 | </div> |
| 260 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 260 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 261 | ··<script> | 261 | ··<script> |
| 262 | ··let·initialized·=·false; | 262 | ··let·initialized·=·false; |
| Offset 119, 45 lines modified | Offset 119, 45 lines modified | ||
| 119 | ··<a·href="#creating-an-erlang-process"·class="hover-link"> | 119 | ··<a·href="#creating-an-erlang-process"·class="hover-link"> |
| 120 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 120 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 121 | ··</a> | 121 | ··</a> |
| 122 | ··<span·class="text">Creating·an·Erlang·Process</span> | 122 | ··<span·class="text">Creating·an·Erlang·Process</span> |
| 123 | </h2> | 123 | </h2> |
| 124 | <p>An·Erlang·process·is·lightweight·compared·to·threads·and·processes·in·operating | 124 | <p>An·Erlang·process·is·lightweight·compared·to·threads·and·processes·in·operating |
| 125 | systems.</p><p>A·newly·spawned·Erlang·process·uses·327·words·of·memory.·The·size·can·be·found | 125 | systems.</p><p>A·newly·spawned·Erlang·process·uses·327·words·of·memory.·The·size·can·be·found |
| 126 | as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Erlang</span><span·class="o">/</span><span·class="n">OTP</span><span·class="w">·</span><span·class="mi">27</span><span·class="w">·</span><span·class="p"·data-group-id=" | 126 | as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Erlang</span><span·class="o">/</span><span·class="n">OTP</span><span·class="w">·</span><span·class="mi">27</span><span·class="w">·</span><span·class="p"·data-group-id="7928171499-1">[</span><span·class="ss">erts</span><span·class="o">-</span><span·class="mf">14.2</span><span·class="p">.</span><span·class="mi">3</span><span·class="p"·data-group-id="7928171499-1">]</span><span·class="w">·</span><span·class="p"·data-group-i[·...·truncated·by·diffoscope;·len:·1122,·SHA:·c2b83ff2fb1a778894b6a2f827e885ed85150f1e2bfca31d0b7f42dc77554b49·...·]-6">]</span><span·class="w"> |
| 127 | </span><span·class="n">Eshell</span><span·class="w">·</span><span·class="n">V14</span><span·class="p">.</span><span·class="mf">2.3</span><span·class="w">·</span><span·class="p"·data-group-id=" | 127 | </span><span·class="n">Eshell</span><span·class="w">·</span><span·class="n">V14</span><span·class="p">.</span><span·class="mf">2.3</span><span·class="w">·</span><span·class="p"·data-group-id="7928171499-7">(</span><span·class="ss">press</span><span·class="w">·</span><span·class="n">Ctrl</span><span·class="o">+</span><span·class="n">G</span><span·class="w">·</span><span·class="ss">to</span><span·class="w">·</span><span·class="ss">abort</span><sp[·...·truncated·by·diffoscope;·len:·399,·SHA:·53786f1120149e66e8301da38cc549761c8742f821c14c7fc0b4bc7358f4eb13·...·]-7">)</span><span·class="gp·unselectable"> |
| 128 | 1>·</span><span·class="n">Fun</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id=" | 128 | 1>·</span><span·class="n">Fun</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id="7928171499-9">(</span><span·class="p"·data-group-id="7928171499-9">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="k">receive</span><span·class="w">·</span><span·class="k">after</span><span·class="w">·</span><span·class="ss">infinity</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">ok</span><span·class="w">·</span><span·class="k">end</span><span·class="w">·</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> |
| 129 | </span><span·class="p">#</span><span·class="n">Fun</span><span·class="o"><</span><span·class="ss">erl_eval</span><span·class="p">.</span><span·class="mf">43.39164016</span><span·class="o">></span><span·class="gp·unselectable"> | 129 | </span><span·class="p">#</span><span·class="n">Fun</span><span·class="o"><</span><span·class="ss">erl_eval</span><span·class="p">.</span><span·class="mf">43.39164016</span><span·class="o">></span><span·class="gp·unselectable"> |
| 130 | 2>·</span><span·class="p"·data-group-id=" | 130 | 2>·</span><span·class="p"·data-group-id="7928171499-10">{</span><span·class="p">_</span><span·class="p">,</span><span·class="n">Bytes</span><span·class="p"·data-group-id="7928171499-10">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">process_info</[·...·truncated·by·diffoscope;·len:·341,·SHA:·a597e70373976807d4c3db7d9caa9214be5694e8a04d90e9226a8fb1df5774d3·...·]-11">)</span><span·class="p">.</span><span·class="w"> |
| 131 | </span><span·class="p"·data-group-id=" | 131 | </span><span·class="p"·data-group-id="7928171499-13">{</span><span·class="nb">memory</span><span·class="p">,</span><span·class="mi">2616</span><span·class="p"·data-group-id="7928171499-13">}</span><span·class="gp·unselectable"> |
| 132 | 3>·</span><span·class="n">Bytes</span><span·class="w">·</span><span·class="ow">div</span><span·class="w">·</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">system_info</span><span·class="p"·data-group-id=" | 132 | 3>·</span><span·class="n">Bytes</span><span·class="w">·</span><span·class="ow">div</span><span·class="w">·</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">system_info</span><span·class="p"·data-group-id="7928171499-14">(</span><span·class="ss">wordsize</span><span·class="p"·data-group-id="7928171499-14">)</span><span·class="p">.</span><span·class="w"> |
| 133 | </span><span·class="mi">327</span></code></pre><p>The·size·includes·233·words·for·the·heap·area·(which·includes·the·stack).·The | 133 | </span><span·class="mi">327</span></code></pre><p>The·size·includes·233·words·for·the·heap·area·(which·includes·the·stack).·The |
| 134 | garbage·collector·increases·the·heap·as·needed.</p><p>The·main·(outer)·loop·for·a·process·<em>must</em>·be·tail-recursive.·Otherwise,·the | 134 | garbage·collector·increases·the·heap·as·needed.</p><p>The·main·(outer)·loop·for·a·process·<em>must</em>·be·tail-recursive.·Otherwise,·the |
| 135 | stack·grows·until·the·process·terminates.</p><p><strong>DO·NOT</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">loop</span><span·class="p"·data-group-id=" | 135 | stack·grows·until·the·process·terminates.</p><p><strong>DO·NOT</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">loop</span><span·class="p"·data-group-id="2701261054-1">(</span><span·class="p"·data-group-id="2701261054-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 136 | ··</span><span·class="k">receive</span><span·class="w"> | 136 | ··</span><span·class="k">receive</span><span·class="w"> |
| 137 | ·····</span><span·class="p"·data-group-id=" | 137 | ·····</span><span·class="p"·data-group-id="2701261054-2">{</span><span·class="ss">sys</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Msg</span><span·class="p"·data-group-id="2701261054-2">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 138 | ·········</span><span·class="nf">handle_sys_msg</span><span·class="p"·data-group-id=" | 138 | ·········</span><span·class="nf">handle_sys_msg</span><span·class="p"·data-group-id="2701261054-3">(</span><span·class="n">Msg</span><span·class="p"·data-group-id="2701261054-3">)</span><span·class="p">,</span><span·class="w"> |
| 139 | ·········</span><span·class="nf">loop</span><span·class="p"·data-group-id=" | 139 | ·········</span><span·class="nf">loop</span><span·class="p"·data-group-id="2701261054-4">(</span><span·class="p"·data-group-id="2701261054-4">)</span><span·class="p">;</span><span·class="w"> |
| 140 | ·····</span><span·class="p"·data-group-id=" | 140 | ·····</span><span·class="p"·data-group-id="2701261054-5">{</span><span·class="n">From</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Msg</span><span·class="p"·data-group-id="2701261054-5">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 141 | ··········</span><span·class="n">Reply</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">handle_msg</span><span·class="p"·data-group-id=" | 141 | ··········</span><span·class="n">Reply</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">handle_msg</span><span·class="p"·data-group-id="2701261054-6">(</span><span·class="n">Msg</span><span·class="p"·data-group-id="2701261054-6">)</span><span·class="p">,</span><span·class="w"> |
| 142 | ··········</span><span·class="n">From</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="n">Reply</span><span·class="p">,</span><span·class="w"> | 142 | ··········</span><span·class="n">From</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="n">Reply</span><span·class="p">,</span><span·class="w"> |
| 143 | ··········</span><span·class="nf">loop</span><span·class="p"·data-group-id=" | 143 | ··········</span><span·class="nf">loop</span><span·class="p"·data-group-id="2701261054-7">(</span><span·class="p"·data-group-id="2701261054-7">)</span><span·class="w"> |
| 144 | ··</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> | 144 | ··</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> |
| 145 | ··</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 145 | ··</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="2701261054-8">(</span><span·class="s">"Message·is·processed</span><span·class="si">~n</span><span·class="s">"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2701261054-9">[</span><span·class="p"·data-group-id[·...·truncated·by·diffoscope;·len:·65,·SHA:·66e630cf79f21f43e769c7f58937c228b0affe990e9ffa0c835066032f7d9be9·...·]-8">)</span><span·class="p">.</span></code></pre><p>The·call·to·<a·href="../../lib/stdlib-7.0/doc/html/io.html#format/2"><code·class="inline">io:format/2</code></a>·will·never·be·executed,·but·a·return·address·will |
| 146 | still·be·pushed·to·the·stack·each·time·<code·class="inline">loop/0</code>·is·called·recursively.·The | 146 | still·be·pushed·to·the·stack·each·time·<code·class="inline">loop/0</code>·is·called·recursively.·The |
| 147 | correct·tail-recursive·version·of·the·function·looks·as·follows:</p><p><strong>DO</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">loop</span><span·class="p"·data-group-id=" | 147 | correct·tail-recursive·version·of·the·function·looks·as·follows:</p><p><strong>DO</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">loop</span><span·class="p"·data-group-id="9743837624-1">(</span><span·class="p"·data-group-id="9743837624-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 148 | ···</span><span·class="k">receive</span><span·class="w"> | 148 | ···</span><span·class="k">receive</span><span·class="w"> |
| 149 | ······</span><span·class="p"·data-group-id=" | 149 | ······</span><span·class="p"·data-group-id="9743837624-2">{</span><span·class="ss">sys</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Msg</span><span·class="p"·data-group-id="9743837624-2">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 150 | ·········</span><span·class="nf">handle_sys_msg</span><span·class="p"·data-group-id=" | 150 | ·········</span><span·class="nf">handle_sys_msg</span><span·class="p"·data-group-id="9743837624-3">(</span><span·class="n">Msg</span><span·class="p"·data-group-id="9743837624-3">)</span><span·class="p">,</span><span·class="w"> |
| 151 | ·········</span><span·class="nf">loop</span><span·class="p"·data-group-id=" | 151 | ·········</span><span·class="nf">loop</span><span·class="p"·data-group-id="9743837624-4">(</span><span·class="p"·data-group-id="9743837624-4">)</span><span·class="p">;</span><span·class="w"> |
| 152 | ······</span><span·class="p"·data-group-id=" | 152 | ······</span><span·class="p"·data-group-id="9743837624-5">{</span><span·class="n">From</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Msg</span><span·class="p"·data-group-id="9743837624-5">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 153 | ·········</span><span·class="n">Reply</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">handle_msg</span><span·class="p"·data-group-id=" | 153 | ·········</span><span·class="n">Reply</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">handle_msg</span><span·class="p"·data-group-id="9743837624-6">(</span><span·class="n">Msg</span><span·class="p"·data-group-id="9743837624-6">)</span><span·class="p">,</span><span·class="w"> |
| 154 | ·········</span><span·class="n">From</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="n">Reply</span><span·class="p">,</span><span·class="w"> | 154 | ·········</span><span·class="n">From</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="n">Reply</span><span·class="p">,</span><span·class="w"> |
| 155 | ·········</span><span·class="nf">loop</span><span·class="p"·data-group-id=" | 155 | ·········</span><span·class="nf">loop</span><span·class="p"·data-group-id="9743837624-7">(</span><span·class="p"·data-group-id="9743837624-7">)</span><span·class="w"> |
| 156 | ·</span><span·class="k">end</span><span·class="p">.</span></code></pre><h3·id="initial-heap-size"·class="section-heading"> | 156 | ·</span><span·class="k">end</span><span·class="p">.</span></code></pre><h3·id="initial-heap-size"·class="section-heading"> |
| 157 | ··<a·href="#initial-heap-size"·class="hover-link"> | 157 | ··<a·href="#initial-heap-size"·class="hover-link"> |
| 158 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 158 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 159 | ··</a> | 159 | ··</a> |
| 160 | ··<span·class="text">Initial·Heap·Size</span> | 160 | ··<span·class="text">Initial·Heap·Size</span> |
| 161 | </h3> | 161 | </h3> |
| 162 | <p>The·default·initial·heap·size·of·233·words·is·quite·conservative·to·support | 162 | <p>The·default·initial·heap·size·of·233·words·is·quite·conservative·to·support |
| Offset 190, 30 lines modified | Offset 190, 30 lines modified | ||
| 190 | ··</a> | 190 | ··</a> |
| 191 | ··<span·class="text">Fetching·Received·Messages</span> | 191 | ··<span·class="text">Fetching·Received·Messages</span> |
| 192 | </h2> | 192 | </h2> |
| 193 | <p>The·cost·of·fetching·a·received·message·from·the·message·queue·depends·on·how | 193 | <p>The·cost·of·fetching·a·received·message·from·the·message·queue·depends·on·how |
| 194 | complicated·the·<code·class="inline">receive</code>·expression·is.·A·simple·expression·that·matches·any | 194 | complicated·the·<code·class="inline">receive</code>·expression·is.·A·simple·expression·that·matches·any |
| 195 | message·is·very·cheap·because·it·retrieves·the·first·message·in·the·message | 195 | message·is·very·cheap·because·it·retrieves·the·first·message·in·the·message |
| 196 | queue:</p><p><strong>DO</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="k">receive</span><span·class="w"> | 196 | queue:</p><p><strong>DO</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="k">receive</span><span·class="w"> |
| 197 | ····</span><span·class="n">Message</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="nf">handle_msg</span><span·class="p"·data-group-id=" | 197 | ····</span><span·class="n">Message</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="nf">handle_msg</span><span·class="p"·data-group-id="8373323140-1">(</span><span·class="n">Message</span><span·class="p"·data-group-id="8373323140-1">)</span><span·class="w"> |
| 198 | </span><span·class="k">end</span><span·class="p">.</span></code></pre><p>However,·this·is·not·always·convenient:·we·can·receive·a·message·that·we·do·not | 198 | </span><span·class="k">end</span><span·class="p">.</span></code></pre><p>However,·this·is·not·always·convenient:·we·can·receive·a·message·that·we·do·not |
| 199 | know·how·to·handle·at·this·point,·so·it·is·common·to·only·match·the·messages·we | 199 | know·how·to·handle·at·this·point,·so·it·is·common·to·only·match·the·messages·we |
| 200 | expect:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="k">receive</span><span·class="w"> | 200 | expect:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="k">receive</span><span·class="w"> |
| 201 | ····</span><span·class="p"·data-group-id=" | 201 | ····</span><span·class="p"·data-group-id="8361081756-1">{</span><span·class="n">Tag</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Message</span><span·class="p"·data-group-id="8361081756-1">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><[·...·truncated·by·diffoscope;·len:·157,·SHA:·a6d04431077bb4c3e31944888a38f5fcf1e4fc51870475dc44e6500b46d01877·...·]-2">)</span><span·class="w"> |
| 202 | </span><span·class="k">end</span><span·class="p">.</span></code></pre><p>While·this·is·convenient·it·means·that·the·entire·message·queue·must·be·searched | 202 | </span><span·class="k">end</span><span·class="p">.</span></code></pre><p>While·this·is·convenient·it·means·that·the·entire·message·queue·must·be·searched |
| 203 | until·it·finds·a·matching·message.·This·is·very·expensive·for·processes·with | 203 | until·it·finds·a·matching·message.·This·is·very·expensive·for·processes·with |
| 204 | long·message·queues,·so·there·is·an·optimization·for·the·common·case·of | 204 | long·message·queues,·so·there·is·an·optimization·for·the·common·case·of |
| 205 | sending·a·request·and·waiting·for·a·response·shortly·after:</p><p><strong>DO</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">MRef</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">monitor</span><span·class="p"·data-group-id=" | 205 | sending·a·request·and·waiting·for·a·response·shortly·after:</p><p><strong>DO</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">MRef</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">monitor</span><span·class="p"·data-group-id="3424264249-1">(</span><span·class="ss">process</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Process</span><span·class="p"·data-group-id="3424264249-1">)</span><span·class="p">,</span><span·class="w"> |
| 206 | </span><span·class="n">Process</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id=" | 206 | </span><span·class="n">Process</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id="3424264249-2">{</span><span·class="nf">self</span><span·class="p"·data-group-id="3424264249-3">(</span><span·class="p"·data-group-id="3424264249-3">)</span><span·class="p">,</span><span·class="w">·</span><span·class="n">MRef</span><span·class="p">,</span><[·...·truncated·by·diffoscope;·len:·94,·SHA:·bf972a3ebe3716e6b55dcb9e5c6a415d125d8a4e0b42a2388919583cc65e03fd·...·]-2">}</span><span·class="p">,</span><span·class="w"> |
| 207 | </span><span·class="k">receive</span><span·class="w"> | 207 | </span><span·class="k">receive</span><span·class="w"> |
| 208 | ····</span><span·class="p"·data-group-id=" | 208 | ····</span><span·class="p"·data-group-id="3424264249-4">{</span><span·class="n">MRef</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Reply</span><span·class="p"·data-group-id="3424264249-4">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 209 | ········</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">demonitor</span><span·class="p"·data-group-id=" | 209 | ········</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">demonitor</span><span·class="p"·data-group-id="3424264249-5">(</span><span·class="n">MRef</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3424264249-6">[</span><span·class="ss">flush</span><span·class="p"·data-group-id="3424264249-6">]</span><span·class="p"·data-gro[·...·truncated·by·diffoscope;·len:·17,·SHA:·f6275de7d52bbbcf69d8938084a04f9b3f17810bb653491276c6590382264b56·...·]-5">)</span><span·class="p">,</span><span·class="w"> |
| 210 | ········</span><span·class="nf">handle_reply</span><span·class="p"·data-group-id=" | 210 | ········</span><span·class="nf">handle_reply</span><span·class="p"·data-group-id="3424264249-7">(</span><span·class="n">Reply</span><span·class="p"·data-group-id="3424264249-7">)</span><span·class="p">;</span><span·class="w"> |
| 211 | ····</span><span·class="p"·data-group-id=" | 211 | ····</span><span·class="p"·data-group-id="3424264249-8">{</span><span·class="ss">'DOWN'</span><span·class="p">,</span><span·class="w">·</span><span·class="n">MRef</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="p">,</span><span·class="w">·</span><[·...·truncated·by·diffoscope;·len:·141,·SHA:·fdb317e6b391cd76c11c55c7ac44f87ef83ece405c81e7ab1d511b783f5edeb7·...·]-8">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 212 | ········</span><span·class="nf">handle_error</span><span·class="p"·data-group-id=" | 212 | ········</span><span·class="nf">handle_error</span><span·class="p"·data-group-id="3424264249-9">(</span><span·class="n">Reason</span><span·class="p"·data-group-id="3424264249-9">)</span><span·class="w"> |
| 213 | </span><span·class="k">end</span><span·class="p">.</span></code></pre><p>Since·the·compiler·knows·that·the·reference·created·by | 213 | </span><span·class="k">end</span><span·class="p">.</span></code></pre><p>Since·the·compiler·knows·that·the·reference·created·by |
| 214 | <a·href="../../erts-16.0/doc/html/erlang.html#monitor/2"><code·class="inline">monitor/2</code></a>·cannot·exist·before·the·call·(since·it·is·a·globally | 214 | <a·href="../../erts-16.0/doc/html/erlang.html#monitor/2"><code·class="inline">monitor/2</code></a>·cannot·exist·before·the·call·(since·it·is·a·globally |
| 215 | unique·identifier),·and·that·the·<code·class="inline">receive</code>·only·matches·messages·that·contain | 215 | unique·identifier),·and·that·the·<code·class="inline">receive</code>·only·matches·messages·that·contain |
| 216 | said·reference,·it·will·tell·the·emulator·to·search·only·the·messages·that | 216 | said·reference,·it·will·tell·the·emulator·to·search·only·the·messages·that |
| 217 | arrived·after·the·call·to·<a·href="../../erts-16.0/doc/html/erlang.html#monitor/2"><code·class="inline">monitor/2</code></a>.</p><p>The·above·is·a·simple·example·where·one·is·guaranteed·that·the·optimization | 217 | arrived·after·the·call·to·<a·href="../../erts-16.0/doc/html/erlang.html#monitor/2"><code·class="inline">monitor/2</code></a>.</p><p>The·above·is·a·simple·example·where·one·is·guaranteed·that·the·optimization |
| 218 | will·take,·but·what·about·more·complicated·code?</p><p><a·href=""·id="recv_opt_info"></a></p><h3·id="option-recv_opt_info"·class="section-heading"> | 218 | will·take,·but·what·about·more·complicated·code?</p><p><a·href=""·id="recv_opt_info"></a></p><h3·id="option-recv_opt_info"·class="section-heading"> |
| 219 | ··<a·href="#option-recv_opt_info"·class="hover-link"> | 219 | ··<a·href="#option-recv_opt_info"·class="hover-link"> |
| Offset 229, 101 lines modified | Offset 229, 101 lines modified | ||
| 229 | </span><span·class="ss">efficiency_guide</span><span·class="p">.</span><span·class="nc">erl</span><span·class="p">:</span><span·class="mi">200</span><span·class="p">:</span><span·class="w">·</span><span·class="n">Warning</span><span·class="p">:</span><span·class="w">·</span><span·class="n">NOT</span><span·class="w">·</span><span·class="n">OPTIMIZED</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">all</span><span·class="w">·</span><span·class="ss">clauses</span><span·class="w">·</span><span·class="ss">do</span><span·class="w">·</span><span·class="ow">not</span><span·class="w">·</span><span·class="ss">match</span><span·class="w">·</span><span·class="ss">a</span><span·class="w">·</span><span·class="ss">suitable</span><span·class="w">·</span><span·class="ss">reference</span><span·class="w"> | 229 | </span><span·class="ss">efficiency_guide</span><span·class="p">.</span><span·class="nc">erl</span><span·class="p">:</span><span·class="mi">200</span><span·class="p">:</span><span·class="w">·</span><span·class="n">Warning</span><span·class="p">:</span><span·class="w">·</span><span·class="n">NOT</span><span·class="w">·</span><span·class="n">OPTIMIZED</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">all</span><span·class="w">·</span><span·class="ss">clauses</span><span·class="w">·</span><span·class="ss">do</span><span·class="w">·</span><span·class="ow">not</span><span·class="w">·</span><span·class="ss">match</span><span·class="w">·</span><span·class="ss">a</span><span·class="w">·</span><span·class="ss">suitable</span><span·class="w">·</span><span·class="ss">reference</span><span·class="w"> |
| 230 | </span><span·class="ss">efficiency_guide</span><span·class="p">.</span><span·class="nc">erl</span><span·class="p">:</span><span·class="mi">206</span><span·class="p">:</span><span·class="w">·</span><span·class="n">Warning</span><span·class="p">:</span><span·class="w">·</span><span·class="n">OPTIMIZED</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">reference</span><span·class="w">·</span><span·class="ss">used</span><span·class="w">·</span><span·class="ss">to</span><span·class="w">·</span><span·class="ss">mark</span><span·class="w">·</span><span·class="ss">a</span><span·class="w">·</span><span·class="ss">message</span><span·class="w">·</span><span·class="ss">queue</span><span·class="w">·</span><span·class="ss">position</span><span·class="w"> | 230 | </span><span·class="ss">efficiency_guide</span><span·class="p">.</span><span·class="nc">erl</span><span·class="p">:</span><span·class="mi">206</span><span·class="p">:</span><span·class="w">·</span><span·class="n">Warning</span><span·class="p">:</span><span·class="w">·</span><span·class="n">OPTIMIZED</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">reference</span><span·class="w">·</span><span·class="ss">used</span><span·class="w">·</span><span·class="ss">to</span><span·class="w">·</span><span·class="ss">mark</span><span·class="w">·</span><span·class="ss">a</span><span·class="w">·</span><span·class="ss">message</span><span·class="w">·</span><span·class="ss">queue</span><span·class="w">·</span><span·class="ss">position</span><span·class="w"> |
| 231 | </span><span·class="ss">efficiency_guide</span><span·class="p">.</span><span·class="nc">erl</span><span·class="p">:</span><span·class="mi">208</span><span·class="p">:</span><span·class="w">·</span><span·class="n">Warning</span><span·class="p">:</span><span·class="w">·</span><span·class="n">OPTIMIZED</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">all</span><span·class="w">·</span><span·class="ss">clauses</span><span·class="w">·</span><span·class="ss">match</span><span·class="w">·</span><span·class="ss">reference</span><span·class="w">·</span><span·class="ss">created</span><span·class="w">·</span><span·class="ss">by</span><span·class="w">·</span><span·class="nb">monitor</span><span·class="p">/</span><span·class="mi">2</span><span·class="w">·</span><span·class="ss">at</span><span·class="w">·</span><span·class="ss">efficiency_guide</span><span·class="p">.</span><span·class="nc">erl</span><span·class="p">:</span><span·class="mi">206</span><span·class="w"> | 231 | </span><span·class="ss">efficiency_guide</span><span·class="p">.</span><span·class="nc">erl</span><span·class="p">:</span><span·class="mi">208</span><span·class="p">:</span><span·class="w">·</span><span·class="n">Warning</span><span·class="p">:</span><span·class="w">·</span><span·class="n">OPTIMIZED</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">all</span><span·class="w">·</span><span·class="ss">clauses</span><span·class="w">·</span><span·class="ss">match</span><span·class="w">·</span><span·class="ss">reference</span><span·class="w">·</span><span·class="ss">created</span><span·class="w">·</span><span·class="ss">by</span><span·class="w">·</span><span·class="nb">monitor</span><span·class="p">/</span><span·class="mi">2</span><span·class="w">·</span><span·class="ss">at</span><span·class="w">·</span><span·class="ss">efficiency_guide</span><span·class="p">.</span><span·class="nc">erl</span><span·class="p">:</span><span·class="mi">206</span><span·class="w"> |
| 232 | </span><span·class="ss">efficiency_guide</span><span·class="p">.</span><span·class="nc">erl</span><span·class="p">:</span><span·class="mi">219</span><span·class="p">:</span><span·class="w">·</span><span·class="n">Warning</span><span·class="p">:</span><span·class="w">·</span><span·class="n">INFO</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">passing</span><span·class="w">·</span><span·class="ss">reference</span><span·class="w">·</span><span·class="ss">created</span><span·class="w">·</span><span·class="ss">by</span><span·class="w">·</span><span·class="ss">make_ref</span><span·class="p">/</span><span·class="mi">0</span><span·class="w">·</span><span·class="ss">at</span><span·class="w">·</span><span·class="ss">efficiency_guide</span><span·class="p">.</span><span·class="nc">erl</span><span·class="p">:</span><span·class="mi">218</span><span·class="w"> | 232 | </span><span·class="ss">efficiency_guide</span><span·class="p">.</span><span·class="nc">erl</span><span·class="p">:</span><span·class="mi">219</span><span·class="p">:</span><span·class="w">·</span><span·class="n">Warning</span><span·class="p">:</span><span·class="w">·</span><span·class="n">INFO</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">passing</span><span·class="w">·</span><span·class="ss">reference</span><span·class="w">·</span><span·class="ss">created</span><span·class="w">·</span><span·class="ss">by</span><span·class="w">·</span><span·class="ss">make_ref</span><span·class="p">/</span><span·class="mi">0</span><span·class="w">·</span><span·class="ss">at</span><span·class="w">·</span><span·class="ss">efficiency_guide</span><span·class="p">.</span><span·class="nc">erl</span><span·class="p">:</span><span·class="mi">218</span><span·class="w"> |
| 233 | </span><span·class="ss">efficiency_guide</span><span·class="p">.</span><span·class="nc">erl</span><span·class="p">:</span><span·class="mi">222</span><span·class="p">:</span><span·class="w">·</span><span·class="n">Warning</span><span·class="p">:</span><span·class="w">·</span><span·class="n">OPTIMIZED</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">all</span><span·class="w">·</span><span·class="ss">clauses</span><span·class="w">·</span><span·class="ss">match</span><span·class="w">·</span><span·class="ss">reference</span><span·class="w">·</span><span·class="ss">in</span><span·class="w">·</span><span·class="ss">function</span><span·class="w">·</span><span·class="ss">parameter</span><span·class="w">·</span><span·class="mi">1</span></code></pre><p>To·make·it·clearer·exactly·what·code·the·warnings·refer·to,·the·warnings·in·the | 233 | </span><span·class="ss">efficiency_guide</span><span·class="p">.</span><span·class="nc">erl</span><span·class="p">:</span><span·class="mi">222</span><span·class="p">:</span><span·class="w">·</span><span·class="n">Warning</span><span·class="p">:</span><span·class="w">·</span><span·class="n">OPTIMIZED</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">all</span><span·class="w">·</span><span·class="ss">clauses</span><span·class="w">·</span><span·class="ss">match</span><span·class="w">·</span><span·class="ss">reference</span><span·class="w">·</span><span·class="ss">in</span><span·class="w">·</span><span·class="ss">function</span><span·class="w">·</span><span·class="ss">parameter</span><span·class="w">·</span><span·class="mi">1</span></code></pre><p>To·make·it·clearer·exactly·what·code·the·warnings·refer·to,·the·warnings·in·the |
| 234 | following·examples·are·inserted·as·comments·after·the·clause·they·refer·to,·for | 234 | following·examples·are·inserted·as·comments·after·the·clause·they·refer·to,·for |
| 235 | example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%%·DO</span><span·class="w"> | 235 | example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%%·DO</span><span·class="w"> |
| 236 | </span><span·class="nf">simple_receive</span><span·class="p"·data-group-id=" | 236 | </span><span·class="nf">simple_receive</span><span·class="p"·data-group-id="7912321617-1">(</span><span·class="p"·data-group-id="7912321617-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 237 | </span><span·class="c1">%%·efficiency_guide.erl:194:·Warning:·INFO:·not·a·selective·receive,·this·is·always·fast</span><span·class="w"> | 237 | </span><span·class="c1">%%·efficiency_guide.erl:194:·Warning:·INFO:·not·a·selective·receive,·this·is·always·fast</span><span·class="w"> |
| 238 | </span><span·class="k">receive</span><span·class="w"> | 238 | </span><span·class="k">receive</span><span·class="w"> |
| 239 | ····</span><span·class="n">Message</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="nf">handle_msg</span><span·class="p"·data-group-id=" | 239 | ····</span><span·class="n">Message</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="nf">handle_msg</span><span·class="p"·data-group-id="7912321617-2">(</span><span·class="n">Message</span><span·class="p"·data-group-id="7912321617-2">)</span><span·class="w"> |
| 240 | </span><span·class="k">end</span><span·class="p">.</span><span·class="w"> | 240 | </span><span·class="k">end</span><span·class="p">.</span><span·class="w"> |
| 241 | </span><span·class="c1">%%·DO·NOT,·unless·Tag·is·known·to·be·a·suitable·reference:·see</span><span·class="w"> | 241 | </span><span·class="c1">%%·DO·NOT,·unless·Tag·is·known·to·be·a·suitable·reference:·see</span><span·class="w"> |
| 242 | </span><span·class="c1">%%·cross_function_receive/0·further·down.</span><span·class="w"> | 242 | </span><span·class="c1">%%·cross_function_receive/0·further·down.</span><span·class="w"> |
| 243 | </span><span·class="nf">selective_receive</span><span·class="p"·data-group-id=" | 243 | </span><span·class="nf">selective_receive</span><span·class="p"·data-group-id="7912321617-3">(</span><span·class="n">Tag</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Message</span><span·class="p"·data-group-id="7912321617-3">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 244 | </span><span·class="c1">%%·efficiency_guide.erl:200:·Warning:·NOT·OPTIMIZED:·all·clauses·do·not·match·a·suitable·reference</span><span·class="w"> | 244 | </span><span·class="c1">%%·efficiency_guide.erl:200:·Warning:·NOT·OPTIMIZED:·all·clauses·do·not·match·a·suitable·reference</span><span·class="w"> |
| 245 | </span><span·class="k">receive</span><span·class="w"> | 245 | </span><span·class="k">receive</span><span·class="w"> |
| 246 | ····</span><span·class="p"·data-group-id=" | 246 | ····</span><span·class="p"·data-group-id="7912321617-4">{</span><span·class="n">Tag</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Message</span><span·class="p"·data-group-id="7912321617-4">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><[·...·truncated·by·diffoscope;·len:·157,·SHA:·0f8811cc5321da8c88a393a633cb32403ad94c8b29879faf362cd3d64c612612·...·]-5">)</span><span·class="w"> |
| 247 | </span><span·class="k">end</span><span·class="p">.</span><span·class="w"> | 247 | </span><span·class="k">end</span><span·class="p">.</span><span·class="w"> |
| 248 | </span><span·class="c1">%%·DO</span><span·class="w"> | 248 | </span><span·class="c1">%%·DO</span><span·class="w"> |
| 249 | </span><span·class="nf">optimized_receive</span><span·class="p"·data-group-id=" | 249 | </span><span·class="nf">optimized_receive</span><span·class="p"·data-group-id="7912321617-6">(</span><span·class="n">Process</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Request</span><span·class="p"·data-group-id="7912321617-6">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 250 | </span><span·class="c1">%%·efficiency_guide.erl:206:·Warning:·OPTIMIZED:·reference·used·to·mark·a·message·queue·position</span><span·class="w"> | 250 | </span><span·class="c1">%%·efficiency_guide.erl:206:·Warning:·OPTIMIZED:·reference·used·to·mark·a·message·queue·position</span><span·class="w"> |
| 251 | ····</span><span·class="n">MRef</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">monitor</span><span·class="p"·data-group-id=" | 251 | ····</span><span·class="n">MRef</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">monitor</span><span·class="p"·data-group-id="7912321617-7">(</span><span·class="ss">process</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Process</span><span·class="p"·data-group-id="7912321617-7">)</span><span·class="p">,</span><span·class="w"> |
| 252 | ····</span><span·class="n">Process</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id=" | 252 | ····</span><span·class="n">Process</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id="7912321617-8">{</span><span·class="nf">self</span><span·class="p"·data-group-id="7912321617-9">(</span><span·class="p"·data-group-id="7912321617-9">)</span><span·class="p">,</span><span·class="w">·</span><span·class="n">MRef</span><span·class="p">,</span><[·...·truncated·by·diffoscope;·len:·94,·SHA:·83579aa31e147def7c1e7d0a81da3e4105f2a5929327298cb6c7746d163cee8b·...·]-8">}</span><span·class="p">,</span><span·class="w"> |
| 253 | ····</span><span·class="c1">%%·efficiency_guide.erl:208:·Warning:·OPTIMIZED:·matches·reference·created·by·monitor/2·at·efficiency_guide.erl:206</span><span·class="w"> | 253 | ····</span><span·class="c1">%%·efficiency_guide.erl:208:·Warning:·OPTIMIZED:·matches·reference·created·by·monitor/2·at·efficiency_guide.erl:206</span><span·class="w"> |
| 254 | ····</span><span·class="k">receive</span><span·class="w"> | 254 | ····</span><span·class="k">receive</span><span·class="w"> |
| 255 | ········</span><span·class="p"·data-group-id=" | 255 | ········</span><span·class="p"·data-group-id="7912321617-10">{</span><span·class="n">MRef</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Reply</span><span·class="p"·data-group-id="7912321617-10">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 256 | ········</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">demonitor</span><span·class="p"·data-group-id=" | 256 | ········</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">demonitor</span><span·class="p"·data-group-id="7912321617-11">(</span><span·class="n">MRef</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="7912321617-12">[</span><span·class="ss">flush</span><span·class="p"·data-group-id="7912321617-12">]</span><span·class="p"·data-[·...·truncated·by·diffoscope;·len:·20,·SHA:·b39bf75bc5d75aa2c14fe44034b2f630deb6554d331077ff1bb812a9fb6e4c8b·...·]-11">)</span><span·class="p">,</span><span·class="w"> |
| 257 | ········</span><span·class="nf">handle_reply</span><span·class="p"·data-group-id=" | 257 | ········</span><span·class="nf">handle_reply</span><span·class="p"·data-group-id="7912321617-13">(</span><span·class="n">Reply</span><span·class="p"·data-group-id="7912321617-13">)</span><span·class="p">;</span><span·class="w"> |
| 258 | ····</span><span·class="p"·data-group-id=" | 258 | ····</span><span·class="p"·data-group-id="7912321617-14">{</span><span·class="ss">'DOWN'</span><span·class="p">,</span><span·class="w">·</span><span·class="n">MRef</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="p">,</span><span·class="w">·</span>[·...·truncated·by·diffoscope;·len:·142,·SHA:·bfb802b7cddc22bcb004fb47f94f0e6f6fa65eb720f2d6d8cca58ca392b2893b·...·]-14">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 259 | ····</span><span·class="nf">handle_error</span><span·class="p"·data-group-id=" | 259 | ····</span><span·class="nf">handle_error</span><span·class="p"·data-group-id="7912321617-15">(</span><span·class="n">Reason</span><span·class="p"·data-group-id="7912321617-15">)</span><span·class="w"> |
| 260 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> | 260 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> |
| 261 | </span><span·class="c1">%%·DO</span><span·class="w"> | 261 | </span><span·class="c1">%%·DO</span><span·class="w"> |
| 262 | </span><span·class="nf">cross_function_receive</span><span·class="p"·data-group-id=" | 262 | </span><span·class="nf">cross_function_receive</span><span·class="p"·data-group-id="7912321617-16">(</span><span·class="p"·data-group-id="7912321617-16">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 263 | ····</span><span·class="c1">%%·efficiency_guide.erl:218:·Warning:·OPTIMIZED:·reference·used·to·mark·a·message·queue·position</span><span·class="w"> | 263 | ····</span><span·class="c1">%%·efficiency_guide.erl:218:·Warning:·OPTIMIZED:·reference·used·to·mark·a·message·queue·position</span><span·class="w"> |
| 264 | ····</span><span·class="n">Ref</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">make_ref</span><span·class="p"·data-group-id=" | 264 | ····</span><span·class="n">Ref</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">make_ref</span><span·class="p"·data-group-id="7912321617-17">(</span><span·class="p"·data-group-id="7912321617-17">)</span><span·class="p">,</span><span·class="w"> |
| 265 | ····</span><span·class="c1">%%·efficiency_guide.erl:219:·Warning:·INFO:·passing·reference·created·by·make_ref/0·at·efficiency_guide.erl:218</span><span·class="w"> | 265 | ····</span><span·class="c1">%%·efficiency_guide.erl:219:·Warning:·INFO:·passing·reference·created·by·make_ref/0·at·efficiency_guide.erl:218</span><span·class="w"> |
| 266 | ····</span><span·class="nf">cross_function_receive</span><span·class="p"·data-group-id=" | 266 | ····</span><span·class="nf">cross_function_receive</span><span·class="p"·data-group-id="7912321617-18">(</span><span·class="n">Ref</span><span·class="p"·data-group-id="7912321617-18">)</span><span·class="p">.</span><span·class="w"> |
| 267 | </span><span·class="nf">cross_function_receive</span><span·class="p"·data-group-id=" | 267 | </span><span·class="nf">cross_function_receive</span><span·class="p"·data-group-id="7912321617-19">(</span><span·class="n">Ref</span><span·class="p"·data-group-id="7912321617-19">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 268 | ····</span><span·class="c1">%%·efficiency_guide.erl:222:·Warning:·OPTIMIZED:·all·clauses·match·reference·in·function·parameter·1</span><span·class="w"> | 268 | ····</span><span·class="c1">%%·efficiency_guide.erl:222:·Warning:·OPTIMIZED:·all·clauses·match·reference·in·function·parameter·1</span><span·class="w"> |
| 269 | ····</span><span·class="k">receive</span><span·class="w"> | 269 | ····</span><span·class="k">receive</span><span·class="w"> |
| 270 | ········</span><span·class="p"·data-group-id=" | 270 | ········</span><span·class="p"·data-group-id="7912321617-20">{</span><span·class="n">Ref</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Message</span><span·class="p"·data-group-id="7912321617-20">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span[·...·truncated·by·diffoscope;·len:·160,·SHA:·d96e52c0427df759c2c273224e937d9acf8593b657c94c9774c2aebede9c7bc0·...·]-21">)</span><span·class="w"> |
| 271 | ····</span><span·class="k">end</span><span·class="p">.</span></code></pre><h2·id="literal-pool"·class="section-heading"> | 271 | ····</span><span·class="k">end</span><span·class="p">.</span></code></pre><h2·id="literal-pool"·class="section-heading"> |
| 272 | ··<a·href="#literal-pool"·class="hover-link"> | 272 | ··<a·href="#literal-pool"·class="hover-link"> |
| 273 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 273 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 274 | ··</a> | 274 | ··</a> |
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| 185 | ······<p·class="built-using"> | 185 | ······<p·class="built-using"> |
| 186 | ········Built·using | 186 | ········Built·using |
| 187 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 187 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 188 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 188 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 189 | ······</p> | 189 | ······</p> |
| 190 | <p>Copyright·©·1996-202 | 190 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 191 | ····</footer> | 191 | ····</footer> |
| 192 | ··</div> | 192 | ··</div> |
| 193 | </main> | 193 | </main> |
| 194 | </div> | 194 | </div> |
| 195 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 195 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 196 | ··<script> | 196 | ··<script> |
| 197 | ··let·initialized·=·false; | 197 | ··let·initialized·=·false; |
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| 398 | ······<p·class="built-using"> | 398 | ······<p·class="built-using"> |
| 399 | ········Built·using | 399 | ········Built·using |
| 400 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 400 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 401 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 401 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 402 | ······</p> | 402 | ······</p> |
| 403 | <p>Copyright·©·1996-202 | 403 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 404 | ····</footer> | 404 | ····</footer> |
| 405 | ··</div> | 405 | ··</div> |
| 406 | </main> | 406 | </main> |
| 407 | </div> | 407 | </div> |
| 408 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 408 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 409 | ··<script> | 409 | ··<script> |
| 410 | ··let·initialized·=·false; | 410 | ··let·initialized·=·false; |
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| 120 | to·read·the·port·example·in·<a·href="c_port.html">Ports</a>·before·reading·this·section.</p><h2·id="erlang-program"·class="section-heading"> | 120 | to·read·the·port·example·in·<a·href="c_port.html">Ports</a>·before·reading·this·section.</p><h2·id="erlang-program"·class="section-heading"> |
| 121 | ··<a·href="#erlang-program"·class="hover-link"> | 121 | ··<a·href="#erlang-program"·class="hover-link"> |
| 122 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 122 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 123 | ··</a> | 123 | ··</a> |
| 124 | ··<span·class="text">Erlang·Program</span> | 124 | ··<span·class="text">Erlang·Program</span> |
| 125 | </h2> | 125 | </h2> |
| 126 | <p>The·following·example·shows·an·Erlang·program·communicating·with·a·C·program | 126 | <p>The·following·example·shows·an·Erlang·program·communicating·with·a·C·program |
| 127 | over·a·plain·port·with·home·made·encoding:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 127 | over·a·plain·port·with·home·made·encoding:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="3018283657-1">(</span><span·class="ss">complex1</span><span·class="p"·data-group-id="3018283657-1">)</span><span·class="p">.</span><span·class="w"> |
| 128 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 128 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="3018283657-2">(</span><span·class="p"·data-group-id="3018283657-3">[</span><span·class="ss">start</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">stop</span><span·class="p">/</span><sp[·...·truncated·by·diffoscope;·len:·241,·SHA:·9e71cca09a3c93b973ec141a439c7d9be0b8ff1717661ff625153680f118cf01·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 129 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 129 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="3018283657-4">(</span><span·class="p"·data-group-id="3018283657-5">[</span><span·class="ss">foo</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">bar</span><span·class="p">/</span><span·[·...·truncated·by·diffoscope;·len:·113,·SHA:·3ce6a2894e64c0c6dc9fe8f9c4582947ff495e7f2981e918a044c4b2bca6763d·...·]-4">)</span><span·class="p">.</span><span·class="w"> |
| 130 | </span><span·class="nf">start</span><span·class="p"·data-group-id=" | 130 | </span><span·class="nf">start</span><span·class="p"·data-group-id="3018283657-6">(</span><span·class="n">ExtPrg</span><span·class="p"·data-group-id="3018283657-6">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 131 | ····</span><span·class="nf">spawn</span><span·class="p"·data-group-id=" | 131 | ····</span><span·class="nf">spawn</span><span·class="p"·data-group-id="3018283657-7">(</span><span·class="o">?</span><span·class="n">MODULE</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">init</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3018283657-8">[</span><spa[·...·truncated·by·diffoscope;·len:·119,·SHA:·9edb594572a88c71c53062ded7a9648089280badbc40b970920afc6231e52500·...·]-7">)</span><span·class="p">.</span><span·class="w"> |
| 132 | </span><span·class="nf">stop</span><span·class="p"·data-group-id=" | 132 | </span><span·class="nf">stop</span><span·class="p"·data-group-id="3018283657-9">(</span><span·class="p"·data-group-id="3018283657-9">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 133 | ····</span><span·class="ss">complex</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="ss">stop</span><span·class="p">.</span><span·class="w"> | 133 | ····</span><span·class="ss">complex</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="ss">stop</span><span·class="p">.</span><span·class="w"> |
| 134 | </span><span·class="nf">foo</span><span·class="p"·data-group-id=" | 134 | </span><span·class="nf">foo</span><span·class="p"·data-group-id="3018283657-10">(</span><span·class="n">X</span><span·class="p"·data-group-id="3018283657-10">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 135 | ····</span><span·class="nf">call_port</span><span·class="p"·data-group-id=" | 135 | ····</span><span·class="nf">call_port</span><span·class="p"·data-group-id="3018283657-11">(</span><span·class="p"·data-group-id="3018283657-12">{</span><span·class="ss">foo</span><span·class="p">,</span><span·class="w">·</span><span·class="n">X</span><span·class="p"·data-group-id="3018283657-12">}</span><span·class="p"·data-group[·...·truncated·by·diffoscope;·len:·15,·SHA:·c42db1cb16fd2981b08d4a4e0003a90394d26242d6ba1e7088ca016b38d7ef4a·...·]-11">)</span><span·class="p">.</span><span·class="w"> |
| 136 | </span><span·class="nf">bar</span><span·class="p"·data-group-id=" | 136 | </span><span·class="nf">bar</span><span·class="p"·data-group-id="3018283657-13">(</span><span·class="n">Y</span><span·class="p"·data-group-id="3018283657-13">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 137 | ····</span><span·class="nf">call_port</span><span·class="p"·data-group-id=" | 137 | ····</span><span·class="nf">call_port</span><span·class="p"·data-group-id="3018283657-14">(</span><span·class="p"·data-group-id="3018283657-15">{</span><span·class="ss">bar</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Y</span><span·class="p"·data-group-id="3018283657-15">}</span><span·class="p"·data-group[·...·truncated·by·diffoscope;·len:·15,·SHA:·c42db1cb16fd2981b08d4a4e0003a90394d26242d6ba1e7088ca016b38d7ef4a·...·]-14">)</span><span·class="p">.</span><span·class="w"> |
| 138 | </span><span·class="nf">call_port</span><span·class="p"·data-group-id=" | 138 | </span><span·class="nf">call_port</span><span·class="p"·data-group-id="3018283657-16">(</span><span·class="n">Msg</span><span·class="p"·data-group-id="3018283657-16">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 139 | ····</span><span·class="ss">complex</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id=" | 139 | ····</span><span·class="ss">complex</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id="3018283657-17">{</span><span·class="ss">call</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">self</span><span·class="p"·data-group-id="3018283657-18">(</span><span·class="p"·data-group-id="3018283657-18">)</span><span·class="p">,</sp[·...·truncated·by·diffoscope;·len:·94,·SHA:·e42ccd4f4c4149f2dd1928b26057d96108d679ea3ecf3c284d926df48849900b·...·]-17">}</span><span·class="p">,</span><span·class="w"> |
| 140 | ····</span><span·class="k">receive</span><span·class="w"> | 140 | ····</span><span·class="k">receive</span><span·class="w"> |
| 141 | » </span><span·class="p"·data-group-id=" | 141 | » </span><span·class="p"·data-group-id="3018283657-19">{</span><span·class="ss">complex</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Result</span><span·class="p"·data-group-id="3018283657-19">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 142 | » ····</span><span·class="n">Result</span><span·class="w"> | 142 | » ····</span><span·class="n">Result</span><span·class="w"> |
| 143 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> | 143 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> |
| 144 | </span><span·class="nf">init</span><span·class="p"·data-group-id=" | 144 | </span><span·class="nf">init</span><span·class="p"·data-group-id="3018283657-20">(</span><span·class="n">ExtPrg</span><span·class="p"·data-group-id="3018283657-20">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 145 | ····</span><span·class="nf">register</span><span·class="p"·data-group-id=" | 145 | ····</span><span·class="nf">register</span><span·class="p"·data-group-id="3018283657-21">(</span><span·class="ss">complex</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">self</span><span·class="p"·data-group-id="3018283657-22">(</span><span·class="p"·data-group-id="3018283657-22">)</span><span·class="p"·da[·...·truncated·by·diffoscope;·len:·23,·SHA:·b5d35c63cf961adcbcd913cf08ea4f6ea9a07d088181d14bc419a8cd9ea4f855·...·]-21">)</span><span·class="p">,</span><span·class="w"> |
| 146 | ····</span><span·class="nf">process_flag</span><span·class="p"·data-group-id=" | 146 | ····</span><span·class="nf">process_flag</span><span·class="p"·data-group-id="3018283657-23">(</span><span·class="ss">trap_exit</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">true</span><span·class="p"·data-group-id="3018283657-23">)</span><span·class="p">,</span><span·class="w"> |
| 147 | ····</span><span·class="n">Port</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">open_port</span><span·class="p"·data-group-id=" | 147 | ····</span><span·class="n">Port</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">open_port</span><span·class="p"·data-group-id="3018283657-24">(</span><span·class="p"·data-group-id="3018283657-25">{</span><span·class="nb">spawn</span><span·class="p">,</span><span·class="w">·</span><span·class="n">ExtPrg</span><span·class="p"·data-group-id="3018283657-25">}</span><span·class="p">,</[·...·truncated·by·diffoscope;·len:·389,·SHA:·693548caa0272aaf10f73f1db984e0013184e9c4cf981048d9c2441347daf0d9·...·]-24">)</span><span·class="p">,</span><span·class="w"> |
| 148 | ····</span><span·class="nf">loop</span><span·class="p"·data-group-id=" | 148 | ····</span><span·class="nf">loop</span><span·class="p"·data-group-id="3018283657-28">(</span><span·class="n">Port</span><span·class="p"·data-group-id="3018283657-28">)</span><span·class="p">.</span><span·class="w"> |
| 149 | </span><span·class="nf">loop</span><span·class="p"·data-group-id=" | 149 | </span><span·class="nf">loop</span><span·class="p"·data-group-id="3018283657-29">(</span><span·class="n">Port</span><span·class="p"·data-group-id="3018283657-29">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 150 | ····</span><span·class="k">receive</span><span·class="w"> | 150 | ····</span><span·class="k">receive</span><span·class="w"> |
| 151 | » </span><span·class="p"·data-group-id=" | 151 | » </span><span·class="p"·data-group-id="3018283657-30">{</span><span·class="ss">call</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Caller</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Msg</span><span·class="p"·data-group-id="3018283657-30">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 152 | » ····</span><span·class="n">Port</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id=" | 152 | » ····</span><span·class="n">Port</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id="3018283657-31">{</span><span·class="nf">self</span><span·class="p"·data-group-id="3018283657-32">(</span><span·class="p"·data-group-id="3018283657-32">)</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3018283657-33">{</[·...·truncated·by·diffoscope;·len:·343,·SHA:·8116ceac228668d36e25b029a4bb524cae3c0a9573a523e5d93a9c8a9d8cdbb5·...·]-31">}</span><span·class="p">,</span><span·class="w"> |
| 153 | » ····</span><span·class="k">receive</span><span·class="w"> | 153 | » ····</span><span·class="k">receive</span><span·class="w"> |
| 154 | » » </span><span·class="p"·data-group-id=" | 154 | » » </span><span·class="p"·data-group-id="3018283657-35">{</span><span·class="n">Port</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3018283657-36">{</span><span·class="ss">data</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Data</span><[·...·truncated·by·diffoscope;·len:·94,·SHA:·219573be2fa38b8eab2e4364875d8274793b3f6bb03d463be30fc95a4f866744·...·]-35">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 155 | » » ····</span><span·class="n">Caller</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id=" | 155 | » » ····</span><span·class="n">Caller</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id="3018283657-37">{</span><span·class="ss">complex</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">decode</span><span·class="p"·data-group-id="3018283657-38">(</span><span·class="n">Data</span><span·class="p"·data-group-id="3018283657-3[·...·truncated·by·diffoscope;·len:·52,·SHA:·78d98f4733cb9bbd864eaad3646332d9073116075d0ac26a5722ebc68edfe5a3·...·]-37">}</span><span·class="w"> |
| 156 | » ····</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> | 156 | » ····</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> |
| 157 | » ····</span><span·class="nf">loop</span><span·class="p"·data-group-id=" | 157 | » ····</span><span·class="nf">loop</span><span·class="p"·data-group-id="3018283657-39">(</span><span·class="n">Port</span><span·class="p"·data-group-id="3018283657-39">)</span><span·class="p">;</span><span·class="w"> |
| 158 | » </span><span·class="ss">stop</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 158 | » </span><span·class="ss">stop</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 159 | » ····</span><span·class="n">Port</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id=" | 159 | » ····</span><span·class="n">Port</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id="3018283657-40">{</span><span·class="nf">self</span><span·class="p"·data-group-id="3018283657-41">(</span><span·class="p"·data-group-id="3018283657-41">)</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">close</span><span·class="p"·data[·...·truncated·by·diffoscope;·len:·21,·SHA:·a5a01da1581bd69c133b9702e65ea2797ce8ec9b82a003c21828ac62c2155c48·...·]-40">}</span><span·class="p">,</span><span·class="w"> |
| 160 | » ····</span><span·class="k">receive</span><span·class="w"> | 160 | » ····</span><span·class="k">receive</span><span·class="w"> |
| 161 | » » </span><span·class="p"·data-group-id=" | 161 | » » </span><span·class="p"·data-group-id="3018283657-42">{</span><span·class="n">Port</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">closed</span><span·class="p"·data-group-id="3018283657-42">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 162 | » » ····</span><span·class="nf">exit</span><span·class="p"·data-group-id=" | 162 | » » ····</span><span·class="nf">exit</span><span·class="p"·data-group-id="3018283657-43">(</span><span·class="ss">normal</span><span·class="p"·data-group-id="3018283657-43">)</span><span·class="w"> |
| 163 | » ····</span><span·class="k">end</span><span·class="p">;</span><span·class="w"> | 163 | » ····</span><span·class="k">end</span><span·class="p">;</span><span·class="w"> |
| 164 | » </span><span·class="p"·data-group-id=" | 164 | » </span><span·class="p"·data-group-id="3018283657-44">{</span><span·class="ss">'EXIT'</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Port</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Reason</span><span·class="p"·data-group-id="3018283657-44">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 165 | » ····</span><span·class="nf">exit</span><span·class="p"·data-group-id=" | 165 | » ····</span><span·class="nf">exit</span><span·class="p"·data-group-id="3018283657-45">(</span><span·class="ss">port_terminated</span><span·class="p"·data-group-id="3018283657-45">)</span><span·class="w"> |
| 166 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> | 166 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> |
| 167 | </span><span·class="nf">encode</span><span·class="p"·data-group-id=" | 167 | </span><span·class="nf">encode</span><span·class="p"·data-group-id="3018283657-46">(</span><span·class="p"·data-group-id="3018283657-47">{</span><span·class="ss">foo</span><span·class="p">,</span><span·class="w">·</span><span·class="n">X</span><span·class="p"·data-group-id="3018283657-47">}</span><span·class="p"·data-group[·...·truncated·by·diffoscope;·len:·296,·SHA:·e5ed1db087ef24c2c8c8103db9a908ff194f305940ef81d683960395227fccb8·...·]-48">]</span><span·class="p">;</span><span·class="w"> |
| 168 | </span><span·class="nf">encode</span><span·class="p"·data-group-id=" | 168 | </span><span·class="nf">encode</span><span·class="p"·data-group-id="3018283657-49">(</span><span·class="p"·data-group-id="3018283657-50">{</span><span·class="ss">bar</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Y</span><span·class="p"·data-group-id="3018283657-50">}</span><span·class="p"·data-group[·...·truncated·by·diffoscope;·len:·296,·SHA:·1125d12a838a849de689846b8e33d43f99d68b40d6e8f147c972ef42cc75115f·...·]-51">]</span><span·class="p">.</span><span·class="w"> |
| 169 | </span><span·class="nf">decode</span><span·class="p"·data-group-id=" | 169 | </span><span·class="nf">decode</span><span·class="p"·data-group-id="3018283657-52">(</span><span·class="p"·data-group-id="3018283657-53">[</span><span·class="n">Int</span><span·class="p"·data-group-id="3018283657-53">]</span><span·class="p"·data-group-id="3018283657-52">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">Int</span><span·class="p">.</span></code></pre><p>There·are·two·differences·when·using·Erl_Interface·on·the·C·side·compared·to·the |
| 170 | example·in·<a·href="c_port.html">Ports</a>,·using·only·the·plain·port:</p><ul><li>As·Erl_Interface·operates·on·the·Erlang·external·term·format,·the·port·must·be | 170 | example·in·<a·href="c_port.html">Ports</a>,·using·only·the·plain·port:</p><ul><li>As·Erl_Interface·operates·on·the·Erlang·external·term·format,·the·port·must·be |
| 171 | set·to·use·binaries.</li><li>Instead·of·inventing·an·encoding/decoding·scheme,·the | 171 | set·to·use·binaries.</li><li>Instead·of·inventing·an·encoding/decoding·scheme,·the |
| 172 | <a·href="../../erts-16.0/doc/html/erlang.html#term_to_binary/1"><code·class="inline">term_to_binary/1</code></a>·and | 172 | <a·href="../../erts-16.0/doc/html/erlang.html#term_to_binary/1"><code·class="inline">term_to_binary/1</code></a>·and |
| 173 | <a·href="../../erts-16.0/doc/html/erlang.html#binary_to_term/1"><code·class="inline">binary_to_term/1</code></a>·BIFs·are·to·be·used.</li></ul><p>That·is:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">open_port</span><span·class="p"·data-group-id=" | 173 | <a·href="../../erts-16.0/doc/html/erlang.html#binary_to_term/1"><code·class="inline">binary_to_term/1</code></a>·BIFs·are·to·be·used.</li></ul><p>That·is:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">open_port</span><span·class="p"·data-group-id="5430122142-1">(</span><span·class="p"·data-group-id="5430122142-2">{</span><span·class="nb">spawn</span><span·class="p">,</span><span·class="w">·</span><span·class="n">ExtPrg</span><span·class="p"·data-group-id="5430122142-2">}</span><span·class="p">,</spa[·...·truncated·by·diffoscope;·len:·2065,·SHA:·8cb0b6a39e80d3472a89a80465b5b11df84d744f6f8ae6b8537bea56ae0afea5·...·]-1">}</span><span·class="p">,</span><span·class="w"> |
| 174 | </span><span·class="k">receive</span><span·class="w"> | 174 | </span><span·class="k">receive</span><span·class="w"> |
| 175 | ··</span><span·class="p"·data-group-id=" | 175 | ··</span><span·class="p"·data-group-id="1671772125-5">{</span><span·class="n">Port</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1671772125-6">{</span><span·class="ss">data</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Data</span><sp[·...·truncated·by·diffoscope;·len:·91,·SHA:·2b91662ea28e510fb7d76af5b250905824451be4ca43770dc912da9e4581e134·...·]-5">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 176 | ····</span><span·class="n">Caller</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id=" | 176 | ····</span><span·class="n">Caller</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id="1671772125-7">{</span><span·class="ss">complex</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">decode</span><span·class="p"·data-group-id="1671772125-8">(</span><span·class="n">Data</span><span·class="p"·data-group-id="1671772125-8">[·...·truncated·by·diffoscope;·len:·49,·SHA:·2756ed8987b2a236ba0312833c47e48fc944d26ba7926599743e64818e218499·...·]-7">}</span><span·class="w"> |
| 177 | </span><span·class="k">end</span></code></pre><p>is·replaced·with:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Port</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id=" | 177 | </span><span·class="k">end</span></code></pre><p>is·replaced·with:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Port</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id="4415037367-1">{</span><span·class="nf">self</span><span·class="p"·data-group-id="4415037367-2">(</span><span·class="p"·data-group-id="4415037367-2">)</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4415037367-3">{</span[·...·truncated·by·diffoscope;·len:·344,·SHA:·84c9abb131a3e6a1538ad049024b98942b382429e9fcae2b4372e652fcc80e63·...·]-1">}</span><span·class="p">,</span><span·class="w"> |
| 178 | </span><span·class="k">receive</span><span·class="w"> | 178 | </span><span·class="k">receive</span><span·class="w"> |
| 179 | ··</span><span·class="p"·data-group-id=" | 179 | ··</span><span·class="p"·data-group-id="4415037367-5">{</span><span·class="n">Port</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4415037367-6">{</span><span·class="ss">data</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Data</span><sp[·...·truncated·by·diffoscope;·len:·91,·SHA:·8b4da71ab1eb2e22365081857f53c62d157bec541c25da5126ba10c87d069c95·...·]-5">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 180 | ····</span><span·class="n">Caller</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id=" | 180 | ····</span><span·class="n">Caller</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id="4415037367-7">{</span><span·class="ss">complex</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">binary_to_term</span><span·class="p"·data-group-id="4415037367-8">(</span><span·class="n">Data</span><span·class="p"·data-group-id="441503[·...·truncated·by·diffoscope;·len:·57,·SHA:·8c7ad61e62829b9b0bf522984e2f13eb4453d3556b1f47b4fe4d54f34189150c·...·]-7">}</span><span·class="w"> |
| 181 | </span><span·class="k">end</span></code></pre><p>The·resulting·Erlang·program·is·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 181 | </span><span·class="k">end</span></code></pre><p>The·resulting·Erlang·program·is·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="9719924907-1">(</span><span·class="ss">complex2</span><span·class="p"·data-group-id="9719924907-1">)</span><span·class="p">.</span><span·class="w"> |
| 182 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 182 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="9719924907-2">(</span><span·class="p"·data-group-id="9719924907-3">[</span><span·class="ss">start</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">stop</span><span·class="p">/</span><sp[·...·truncated·by·diffoscope;·len:·241,·SHA:·f2dbfd305aa8dc03ba3faf75d3951cd12294c18dbf70ea8a08b5cb7304fd51ff·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 183 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 183 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="9719924907-4">(</span><span·class="p"·data-group-id="9719924907-5">[</span><span·class="ss">foo</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">bar</span><span·class="p">/</span><span·[·...·truncated·by·diffoscope;·len:·113,·SHA:·2969d5953379e7cf9414da3949147fbe9ff3c1104dbc5a36c92c47a704c4c001·...·]-4">)</span><span·class="p">.</span><span·class="w"> |
| 184 | </span><span·class="nf">start</span><span·class="p"·data-group-id=" | 184 | </span><span·class="nf">start</span><span·class="p"·data-group-id="9719924907-6">(</span><span·class="n">ExtPrg</span><span·class="p"·data-group-id="9719924907-6">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 185 | ····</span><span·class="nf">spawn</span><span·class="p"·data-group-id=" | 185 | ····</span><span·class="nf">spawn</span><span·class="p"·data-group-id="9719924907-7">(</span><span·class="o">?</span><span·class="n">MODULE</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">init</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9719924907-8">[</span><spa[·...·truncated·by·diffoscope;·len:·119,·SHA:·0517d34b152c011f43378c204cfaa3aa8a6e611a5648fa7c42f86f438609956f·...·]-7">)</span><span·class="p">.</span><span·class="w"> |
| 186 | </span><span·class="nf">stop</span><span·class="p"·data-group-id=" | 186 | </span><span·class="nf">stop</span><span·class="p"·data-group-id="9719924907-9">(</span><span·class="p"·data-group-id="9719924907-9">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 187 | ····</span><span·class="ss">complex</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="ss">stop</span><span·class="p">.</span><span·class="w"> | 187 | ····</span><span·class="ss">complex</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="ss">stop</span><span·class="p">.</span><span·class="w"> |
| 188 | </span><span·class="nf">foo</span><span·class="p"·data-group-id=" | 188 | </span><span·class="nf">foo</span><span·class="p"·data-group-id="9719924907-10">(</span><span·class="n">X</span><span·class="p"·data-group-id="9719924907-10">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 189 | ····</span><span·class="nf">call_port</span><span·class="p"·data-group-id=" | 189 | ····</span><span·class="nf">call_port</span><span·class="p"·data-group-id="9719924907-11">(</span><span·class="p"·data-group-id="9719924907-12">{</span><span·class="ss">foo</span><span·class="p">,</span><span·class="w">·</span><span·class="n">X</span><span·class="p"·data-group-id="9719924907-12">}</span><span·class="p"·data-group[·...·truncated·by·diffoscope;·len:·15,·SHA:·7c5eb141912c8d2d9b57175e50d26a2cf674aec37ac00de36e624a68d1a9a915·...·]-11">)</span><span·class="p">.</span><span·class="w"> |
| 190 | </span><span·class="nf">bar</span><span·class="p"·data-group-id=" | 190 | </span><span·class="nf">bar</span><span·class="p"·data-group-id="9719924907-13">(</span><span·class="n">Y</span><span·class="p"·data-group-id="9719924907-13">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 191 | ····</span><span·class="nf">call_port</span><span·class="p"·data-group-id=" | 191 | ····</span><span·class="nf">call_port</span><span·class="p"·data-group-id="9719924907-14">(</span><span·class="p"·data-group-id="9719924907-15">{</span><span·class="ss">bar</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Y</span><span·class="p"·data-group-id="9719924907-15">}</span><span·class="p"·data-group[·...·truncated·by·diffoscope;·len:·15,·SHA:·7c5eb141912c8d2d9b57175e50d26a2cf674aec37ac00de36e624a68d1a9a915·...·]-14">)</span><span·class="p">.</span><span·class="w"> |
| 192 | </span><span·class="nf">call_port</span><span·class="p"·data-group-id=" | 192 | </span><span·class="nf">call_port</span><span·class="p"·data-group-id="9719924907-16">(</span><span·class="n">Msg</span><span·class="p"·data-group-id="9719924907-16">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 193 | ····</span><span·class="ss">complex</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id=" | 193 | ····</span><span·class="ss">complex</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id="9719924907-17">{</span><span·class="ss">call</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">self</span><span·class="p"·data-group-id="9719924907-18">(</span><span·class="p"·data-group-id="9719924907-18">)</span><span·class="p">,</sp[·...·truncated·by·diffoscope;·len:·94,·SHA:·2a3f1df09ae0b6e65878e9c9601a78f6a2a627cf84adb72a55d8786add154801·...·]-17">}</span><span·class="p">,</span><span·class="w"> |
| 194 | ····</span><span·class="k">receive</span><span·class="w"> | 194 | ····</span><span·class="k">receive</span><span·class="w"> |
| 195 | » </span><span·class="p"·data-group-id=" | 195 | » </span><span·class="p"·data-group-id="9719924907-19">{</span><span·class="ss">complex</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Result</span><span·class="p"·data-group-id="9719924907-19">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 196 | » ····</span><span·class="n">Result</span><span·class="w"> | 196 | » ····</span><span·class="n">Result</span><span·class="w"> |
| 197 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> | 197 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> |
| 198 | </span><span·class="nf">init</span><span·class="p"·data-group-id=" | 198 | </span><span·class="nf">init</span><span·class="p"·data-group-id="9719924907-20">(</span><span·class="n">ExtPrg</span><span·class="p"·data-group-id="9719924907-20">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 199 | ····</span><span·class="nf">register</span><span·class="p"·data-group-id=" | 199 | ····</span><span·class="nf">register</span><span·class="p"·data-group-id="9719924907-21">(</span><span·class="ss">complex</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">self</span><span·class="p"·data-group-id="9719924907-22">(</span><span·class="p"·data-group-id="9719924907-22">)</span><span·class="p"·da[·...·truncated·by·diffoscope;·len:·23,·SHA:·7a2747db1c82da0b9ed048c62058ff3efb139b31c2351157ec4e58bfb5d0b752·...·]-21">)</span><span·class="p">,</span><span·class="w"> |
| 200 | ····</span><span·class="nf">process_flag</span><span·class="p"·data-group-id=" | 200 | ····</span><span·class="nf">process_flag</span><span·class="p"·data-group-id="9719924907-23">(</span><span·class="ss">trap_exit</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">true</span><span·class="p"·data-group-id="9719924907-23">)</span><span·class="p">,</span><span·class="w"> |
| 201 | ····</span><span·class="n">Port</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">open_port</span><span·class="p"·data-group-id=" | 201 | ····</span><span·class="n">Port</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">open_port</span><span·class="p"·data-group-id="9719924907-24">(</span><span·class="p"·data-group-id="9719924907-25">{</span><span·class="nb">spawn</span><span·class="p">,</span><span·class="w">·</span><span·class="n">ExtPrg</span><span·class="p"·data-group-id="9719924907-25">}</span><span·class="p">,</[·...·truncated·by·diffoscope;·len:·467,·SHA:·c7d1f1d8e090ff36cf378426408c873f07b0e29585fa9ac4c37c54731e6519f5·...·]-24">)</span><span·class="p">,</span><span·class="w"> |
| 202 | ····</span><span·class="nf">loop</span><span·class="p"·data-group-id=" | 202 | ····</span><span·class="nf">loop</span><span·class="p"·data-group-id="9719924907-28">(</span><span·class="n">Port</span><span·class="p"·data-group-id="9719924907-28">)</span><span·class="p">.</span><span·class="w"> |
| 203 | </span><span·class="nf">loop</span><span·class="p"·data-group-id=" | 203 | </span><span·class="nf">loop</span><span·class="p"·data-group-id="9719924907-29">(</span><span·class="n">Port</span><span·class="p"·data-group-id="9719924907-29">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 204 | ····</span><span·class="k">receive</span><span·class="w"> | 204 | ····</span><span·class="k">receive</span><span·class="w"> |
| 205 | » </span><span·class="p"·data-group-id=" | 205 | » </span><span·class="p"·data-group-id="9719924907-30">{</span><span·class="ss">call</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Caller</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Msg</span><span·class="p"·data-group-id="9719924907-30">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 206 | » ····</span><span·class="n">Port</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id=" | 206 | » ····</span><span·class="n">Port</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id="9719924907-31">{</span><span·class="nf">self</span><span·class="p"·data-group-id="9719924907-32">(</span><span·class="p"·data-group-id="9719924907-32">)</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9719924907-33">{</[·...·truncated·by·diffoscope;·len:·351,·SHA:·652cc99d7e252887f9defc6cd3a513ce1a73d0c16a322ff99dc99a39536c5a8c·...·]-31">}</span><span·class="p">,</span><span·class="w"> |
| 207 | » ····</span><span·class="k">receive</span><span·class="w"> | 207 | » ····</span><span·class="k">receive</span><span·class="w"> |
| 208 | » » </span><span·class="p"·data-group-id=" | 208 | » » </span><span·class="p"·data-group-id="9719924907-35">{</span><span·class="n">Port</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9719924907-36">{</span><span·class="ss">data</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Data</span><[·...·truncated·by·diffoscope;·len:·94,·SHA:·b97eecab405045a1ea30877fe73bf47de36d722bfd75d85a8713a6111fd6602f·...·]-35">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 209 | » » ····</span><span·class="n">Caller</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id=" | 209 | » » ····</span><span·class="n">Caller</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id="9719924907-37">{</span><span·class="ss">complex</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">binary_to_term</span><span·class="p"·data-group-id="9719924907-38">(</span><span·class="n">Data</span><span·class="p"·data-group-id="9719[·...·truncated·by·diffoscope;·len:·60,·SHA:·aded709ece1e7818979e7179000a06b5d23f4d8d78baa41b061a1719563342b4·...·]-37">}</span><span·class="w"> |
| 210 | » ····</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> | 210 | » ····</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> |
| 211 | » ····</span><span·class="nf">loop</span><span·class="p"·data-group-id=" | 211 | » ····</span><span·class="nf">loop</span><span·class="p"·data-group-id="9719924907-39">(</span><span·class="n">Port</span><span·class="p"·data-group-id="9719924907-39">)</span><span·class="p">;</span><span·class="w"> |
| 212 | » </span><span·class="ss">stop</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 212 | » </span><span·class="ss">stop</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 213 | » ····</span><span·class="n">Port</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id=" | 213 | » ····</span><span·class="n">Port</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id="9719924907-40">{</span><span·class="nf">self</span><span·class="p"·data-group-id="9719924907-41">(</span><span·class="p"·data-group-id="9719924907-41">)</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">close</span><span·class="p"·data[·...·truncated·by·diffoscope;·len:·21,·SHA:·ff9c0fa6a3bfc51cc0fcce03f4950ad0318674f7d28282e3ef9d0bd2de3a5896·...·]-40">}</span><span·class="p">,</span><span·class="w"> |
| 214 | » ····</span><span·class="k">receive</span><span·class="w"> | 214 | » ····</span><span·class="k">receive</span><span·class="w"> |
| 215 | » » </span><span·class="p"·data-group-id=" | 215 | » » </span><span·class="p"·data-group-id="9719924907-42">{</span><span·class="n">Port</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">closed</span><span·class="p"·data-group-id="9719924907-42">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 216 | » » ····</span><span·class="nf">exit</span><span·class="p"·data-group-id=" | 216 | » » ····</span><span·class="nf">exit</span><span·class="p"·data-group-id="9719924907-43">(</span><span·class="ss">normal</span><span·class="p"·data-group-id="9719924907-43">)</span><span·class="w"> |
| 217 | » ····</span><span·class="k">end</span><span·class="p">;</span><span·class="w"> | 217 | » ····</span><span·class="k">end</span><span·class="p">;</span><span·class="w"> |
| 218 | » </span><span·class="p"·data-group-id=" | 218 | » </span><span·class="p"·data-group-id="9719924907-44">{</span><span·class="ss">'EXIT'</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Port</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Reason</span><span·class="p"·data-group-id="9719924907-44">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 219 | » ····</span><span·class="nf">exit</span><span·class="p"·data-group-id=" | 219 | » ····</span><span·class="nf">exit</span><span·class="p"·data-group-id="9719924907-45">(</span><span·class="ss">port_terminated</span><span·class="p"·data-group-id="9719924907-45">)</span><span·class="w"> |
| 220 | ····</span><span·class="k">end</span><span·class="p">.</span></code></pre><p>Notice·that·calling·<code·class="inline">complex2:foo/1</code>·and·<code·class="inline">complex2:bar/1</code>·results·in·the·tuple | 220 | ····</span><span·class="k">end</span><span·class="p">.</span></code></pre><p>Notice·that·calling·<code·class="inline">complex2:foo/1</code>·and·<code·class="inline">complex2:bar/1</code>·results·in·the·tuple |
| 221 | <code·class="inline">{foo,X}</code>·or·<code·class="inline">{bar,Y}</code>·being·sent·to·the·<code·class="inline">complex</code>·process,·which·codes·them·as | 221 | <code·class="inline">{foo,X}</code>·or·<code·class="inline">{bar,Y}</code>·being·sent·to·the·<code·class="inline">complex</code>·process,·which·codes·them·as |
| 222 | binaries·and·sends·them·to·the·port.·This·means·that·the·C·program·must·be·able | 222 | binaries·and·sends·them·to·the·port.·This·means·that·the·C·program·must·be·able |
| 223 | to·handle·these·two·tuples.</p><h2·id="c-program"·class="section-heading"> | 223 | to·handle·these·two·tuples.</p><h2·id="c-program"·class="section-heading"> |
| 224 | ··<a·href="#c-program"·class="hover-link"> | 224 | ··<a·href="#c-program"·class="hover-link"> |
| 225 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 225 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 226 | ··</a> | 226 | ··</a> |
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| 362 | ····-L/usr/local/otp/lib/erl_interface-3.9.2/lib·\ | 362 | ····-L/usr/local/otp/lib/erl_interface-3.9.2/lib·\ |
| 363 | ····complex.c·erl_comm.c·ei.c·-lei·-lpthread</code></pre><p>In·Erlang/OTP·R5B·and·later·versions·of·OTP,·the·<code·class="inline">include</code>·and·<code·class="inline">lib</code>·directories | 363 | ····complex.c·erl_comm.c·ei.c·-lei·-lpthread</code></pre><p>In·Erlang/OTP·R5B·and·later·versions·of·OTP,·the·<code·class="inline">include</code>·and·<code·class="inline">lib</code>·directories |
| 364 | are·situated·under·<code·class="inline">$OTPROOT/lib/erl_interface-VSN</code>,·where·<code·class="inline">$OTPROOT</code>·is·the | 364 | are·situated·under·<code·class="inline">$OTPROOT/lib/erl_interface-VSN</code>,·where·<code·class="inline">$OTPROOT</code>·is·the |
| 365 | root·directory·of·the·OTP·installation·(<code·class="inline">/usr/local/otp</code>·in·the·recent·example) | 365 | root·directory·of·the·OTP·installation·(<code·class="inline">/usr/local/otp</code>·in·the·recent·example) |
| 366 | and·<code·class="inline">VSN</code>·is·the·version·of·the·Erl_interface·application·(3.2.1·in·the·recent | 366 | and·<code·class="inline">VSN</code>·is·the·version·of·the·Erl_interface·application·(3.2.1·in·the·recent |
| 367 | example).</p><p>In·R4B·and·earlier·versions·of·OTP,·<code·class="inline">include</code>·and·<code·class="inline">lib</code>·are·situated·under | 367 | example).</p><p>In·R4B·and·earlier·versions·of·OTP,·<code·class="inline">include</code>·and·<code·class="inline">lib</code>·are·situated·under |
| 368 | <code·class="inline">$OTPROOT/usr</code>.</p><p><em>Step·2.</em>·Start·Erlang·and·compile·the·Erlang·code:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="sc">$·</span><span·class="ss">erl</span><span·class="w"> | 368 | <code·class="inline">$OTPROOT/usr</code>.</p><p><em>Step·2.</em>·Start·Erlang·and·compile·the·Erlang·code:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="sc">$·</span><span·class="ss">erl</span><span·class="w"> |
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| 143 | reports·and·other·error·and·information·reports·are·by·default·logged·through | 143 | reports·and·other·error·and·information·reports·are·by·default·logged·through |
| 144 | the·log·handler·which·is·set·up·when·the·Kernel·application·is·started.</p><p>Prior·to·Erlang/OTP·21.0,·supervisor,·crash,·and·progress·reports·were·only | 144 | the·log·handler·which·is·set·up·when·the·Kernel·application·is·started.</p><p>Prior·to·Erlang/OTP·21.0,·supervisor,·crash,·and·progress·reports·were·only |
| 145 | logged·when·the·SASL·application·was·running.·This·behaviour·can,·for·backwards | 145 | logged·when·the·SASL·application·was·running.·This·behaviour·can,·for·backwards |
| 146 | compatibility,·be·enabled·by·setting·the·Kernel·configuration·parameter | 146 | compatibility,·be·enabled·by·setting·the·Kernel·configuration·parameter |
| 147 | <a·href="../../lib/kernel-10.3/doc/html/kernel_app.html#logger_sasl_compatible"><code·class="inline">logger_sasl_compatible</code></a>·to | 147 | <a·href="../../lib/kernel-10.3/doc/html/kernel_app.html#logger_sasl_compatible"><code·class="inline">logger_sasl_compatible</code></a>·to |
| 148 | <code·class="inline">true</code>.·For·more·information,·see | 148 | <code·class="inline">true</code>.·For·more·information,·see |
| 149 | <a·href="../../lib/sasl-4.3/doc/html/error_logging.html">SASL·Error·Logging</a>·in·the·SASL·User's·Guide.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%·erl·-kernel·logger_level·info</span><span·class="w"> | 149 | <a·href="../../lib/sasl-4.3/doc/html/error_logging.html">SASL·Error·Logging</a>·in·the·SASL·User's·Guide.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%·erl·-kernel·logger_level·info</span><span·class="w"> |
| 150 | </span><span·class="n">Erlang</span><span·class="o">/</span><span·class="n">OTP</span><span·class="w">·</span><span·class="mi">21</span><span·class="w">·</span><span·class="p"·data-group-id="8 | 150 | </span><span·class="n">Erlang</span><span·class="o">/</span><span·class="n">OTP</span><span·class="w">·</span><span·class="mi">21</span><span·class="w">·</span><span·class="p"·data-group-id="7835842636-1">[</span><span·class="ss">erts</span><span·class="o">-</span><span·class="mf">10.0</span><span·class="p"·data-group-id="7835842636-1">]</span><span·class="w">·</span><span·class="p"·data-group-id="7835842636-2">[</span><span·class="ss">source<[·...·truncated·by·diffoscope;·len:·1313,·SHA:·f6d53919b5f33d18dd845e10d92b0b0dbd2110c3e3f2836651a84bade8e2bcc1·...·]-7">]</span><span·class="w"> |
| 151 | </span><span·class="o">=</span><span·class="n">PROGRESS</span><span·class="w">·</span><span·class="n">REPORT</span><span·class="o">==</span><span·class="o">==</span><span·class="w">·</span><span·class="mi">8</span><span·class="o">-</span><span·class="n">Jun</span><span·class="o">-</span><span·class="mi">2018</span><span·class="p">:</span><span·class="p">:</span><span·class="mi">16</span><span·class="p">:</span><span·class="mi">54</span><span·class="p">:</span><span·class="mf">19.916404</span><span·class="w">·</span><span·class="o">==</span><span·class="o">=</span><span·class="w"> | 151 | </span><span·class="o">=</span><span·class="n">PROGRESS</span><span·class="w">·</span><span·class="n">REPORT</span><span·class="o">==</span><span·class="o">==</span><span·class="w">·</span><span·class="mi">8</span><span·class="o">-</span><span·class="n">Jun</span><span·class="o">-</span><span·class="mi">2018</span><span·class="p">:</span><span·class="p">:</span><span·class="mi">16</span><span·class="p">:</span><span·class="mi">54</span><span·class="p">:</span><span·class="mf">19.916404</span><span·class="w">·</span><span·class="o">==</span><span·class="o">=</span><span·class="w"> |
| 152 | ····</span><span·class="nc">application</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">kernel</span><span·class="w"> | 152 | ····</span><span·class="nc">application</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">kernel</span><span·class="w"> |
| 153 | ····</span><span·class="nc">started_at</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">nonode@nohost</span><span·class="w"> | 153 | ····</span><span·class="nc">started_at</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">nonode@nohost</span><span·class="w"> |
| 154 | </span><span·class="o">=</span><span·class="n">PROGRESS</span><span·class="w">·</span><span·class="n">REPORT</span><span·class="o">==</span><span·class="o">==</span><span·class="w">·</span><span·class="mi">8</span><span·class="o">-</span><span·class="n">Jun</span><span·class="o">-</span><span·class="mi">2018</span><span·class="p">:</span><span·class="p">:</span><span·class="mi">16</span><span·class="p">:</span><span·class="mi">54</span><span·class="p">:</span><span·class="mf">19.922908</span><span·class="w">·</span><span·class="o">==</span><span·class="o">=</span><span·class="w"> | 154 | </span><span·class="o">=</span><span·class="n">PROGRESS</span><span·class="w">·</span><span·class="n">REPORT</span><span·class="o">==</span><span·class="o">==</span><span·class="w">·</span><span·class="mi">8</span><span·class="o">-</span><span·class="n">Jun</span><span·class="o">-</span><span·class="mi">2018</span><span·class="p">:</span><span·class="p">:</span><span·class="mi">16</span><span·class="p">:</span><span·class="mi">54</span><span·class="p">:</span><span·class="mf">19.922908</span><span·class="w">·</span><span·class="o">==</span><span·class="o">=</span><span·class="w"> |
| 155 | ····</span><span·class="nc">application</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">stdlib</span><span·class="w"> | 155 | ····</span><span·class="nc">application</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">stdlib</span><span·class="w"> |
| 156 | ····</span><span·class="nc">started_at</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">nonode@nohost</span><span·class="w"> | 156 | ····</span><span·class="nc">started_at</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">nonode@nohost</span><span·class="w"> |
| 157 | </span><span·class="o">=</span><span·class="n">PROGRESS</span><span·class="w">·</span><span·class="n">REPORT</span><span·class="o">==</span><span·class="o">==</span><span·class="w">·</span><span·class="mi">8</span><span·class="o">-</span><span·class="n">Jun</span><span·class="o">-</span><span·class="mi">2018</span><span·class="p">:</span><span·class="p">:</span><span·class="mi">16</span><span·class="p">:</span><span·class="mi">54</span><span·class="p">:</span><span·class="mf">19.925755</span><span·class="w">·</span><span·class="o">==</span><span·class="o">=</span><span·class="w"> | 157 | </span><span·class="o">=</span><span·class="n">PROGRESS</span><span·class="w">·</span><span·class="n">REPORT</span><span·class="o">==</span><span·class="o">==</span><span·class="w">·</span><span·class="mi">8</span><span·class="o">-</span><span·class="n">Jun</span><span·class="o">-</span><span·class="mi">2018</span><span·class="p">:</span><span·class="p">:</span><span·class="mi">16</span><span·class="p">:</span><span·class="mi">54</span><span·class="p">:</span><span·class="mf">19.925755</span><span·class="w">·</span><span·class="o">==</span><span·class="o">=</span><span·class="w"> |
| 158 | ····</span><span·class="nc">supervisor</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id="8 | 158 | ····</span><span·class="nc">supervisor</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id="7835842636-8">{</span><span·class="ss">local</span><span·class="p">,</span><span·class="ss">kernel_safe_sup</span><span·class="p"·data-group-id="7835842636-8">}</span><span·class="w"> |
| 159 | ····</span><span·class="nc">started</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id="8 | 159 | ····</span><span·class="nc">started</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id="7835842636-9">[</span><span·class="p"·data-group-id="7835842636-10">{</span><span·class="ss">pid</span><span·class="p">,</span><span·class="o"><</span><span·class="mf">0.74</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></spa[·...·truncated·by·diffoscope;·len:·43,·SHA:·8774f6c335ab77c637b5d6a8cdc27c79da9fe6195ccd07628a8d14cb9b363494·...·]-10">}</span><span·class="p">,</span><span·class="w"> |
| 160 | ··············</span><span·class="p"·data-group-id="8 | 160 | ··············</span><span·class="p"·data-group-id="7835842636-11">{</span><span·class="ss">id</span><span·class="p">,</span><span·class="ss">disk_log_sup</span><span·class="p"·data-group-id="7835842636-11">}</span><span·class="p">,</span><span·class="w"> |
| 161 | ··············</span><span·class="p"·data-group-id="8 | 161 | ··············</span><span·class="p"·data-group-id="7835842636-12">{</span><span·class="ss">mfargs</span><span·class="p">,</span><span·class="p"·data-group-id="7835842636-13">{</span><span·class="ss">disk_log_sup</span><span·class="p">,</span><span·class="ss">start_link</span><span·class="p">,</span><span·c[·...·truncated·by·diffoscope;·len:·196,·SHA:·3809b917d2db374c6bb78e417ded447498fd9a652cce3ba1ea6a0d1e57f892ec·...·]-12">}</span><span·class="p">,</span><span·class="w"> |
| 162 | ··············</span><span·class="p"·data-group-id="8 | 162 | ··············</span><span·class="p"·data-group-id="7835842636-15">{</span><span·class="ss">restart_type</span><span·class="p">,</span><span·class="ss">permanent</span><span·class="p"·data-group-id="7835842636-15">}</span><span·class="p">,</span><span·class="w"> |
| 163 | ··············</span><span·class="p"·data-group-id="8 | 163 | ··············</span><span·class="p"·data-group-id="7835842636-16">{</span><span·class="ss">shutdown</span><span·class="p">,</span><span·class="mi">1000</span><span·class="p"·data-group-id="7835842636-16">}</span><span·class="p">,</span><span·class="w"> |
| 164 | ··············</span><span·class="p"·data-group-id="8 | 164 | ··············</span><span·class="p"·data-group-id="7835842636-17">{</span><span·class="ss">child_type</span><span·class="p">,</span><span·class="ss">supervisor</span><span·class="p"·data-group-id="7835842636-17">}</span><span·class="p"·data-group-id="7835842636-9">]</span><span·class="w"> |
| 165 | </span><span·class="o">=</span><span·class="n">PROGRESS</span><span·class="w">·</span><span·class="n">REPORT</span><span·class="o">==</span><span·class="o">==</span><span·class="w">·</span><span·class="mi">8</span><span·class="o">-</span><span·class="n">Jun</span><span·class="o">-</span><span·class="mi">2018</span><span·class="p">:</span><span·class="p">:</span><span·class="mi">16</span><span·class="p">:</span><span·class="mi">54</span><span·class="p">:</span><span·class="mf">19.926056</span><span·class="w">·</span><span·class="o">==</span><span·class="o">=</span><span·class="w"> | 165 | </span><span·class="o">=</span><span·class="n">PROGRESS</span><span·class="w">·</span><span·class="n">REPORT</span><span·class="o">==</span><span·class="o">==</span><span·class="w">·</span><span·class="mi">8</span><span·class="o">-</span><span·class="n">Jun</span><span·class="o">-</span><span·class="mi">2018</span><span·class="p">:</span><span·class="p">:</span><span·class="mi">16</span><span·class="p">:</span><span·class="mi">54</span><span·class="p">:</span><span·class="mf">19.926056</span><span·class="w">·</span><span·class="o">==</span><span·class="o">=</span><span·class="w"> |
| 166 | ····</span><span·class="nc">supervisor</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id="8 | 166 | ····</span><span·class="nc">supervisor</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id="7835842636-18">{</span><span·class="ss">local</span><span·class="p">,</span><span·class="ss">kernel_safe_sup</span><span·class="p"·data-group-id="7835842636-18">}</span><span·class="w"> |
| 167 | ····</span><span·class="nc">started</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id="8 | 167 | ····</span><span·class="nc">started</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id="7835842636-19">[</span><span·class="p"·data-group-id="7835842636-20">{</span><span·class="ss">pid</span><span·class="p">,</span><span·class="o"><</span><span·class="mf">0.75</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></sp[·...·truncated·by·diffoscope;·len:·44,·SHA:·8acdf91747195bbfd58eb327626dbf2910b585c889ee087961719e421bf9bb28·...·]-20">}</span><span·class="p">,</span><span·class="w"> |
| 168 | ··············</span><span·class="p"·data-group-id="8 | 168 | ··············</span><span·class="p"·data-group-id="7835842636-21">{</span><span·class="ss">id</span><span·class="p">,</span><span·class="ss">disk_log_server</span><span·class="p"·data-group-id="7835842636-21">}</span><span·class="p">,</span><span·class="w"> |
| 169 | ··············</span><span·class="p"·data-group-id="8 | 169 | ··············</span><span·class="p"·data-group-id="7835842636-22">{</span><span·class="ss">mfargs</span><span·class="p">,</span><span·class="p"·data-group-id="7835842636-23">{</span><span·class="ss">disk_log_server</span><span·class="p">,</span><span·class="ss">start_link</span><span·class="p">,</span><spa[·...·truncated·by·diffoscope;·len:·199,·SHA:·3d976d7f36e73885d4aa33c6086365730914ab3a0c4ece55179cc7f12f2f0431·...·]-22">}</span><span·class="p">,</span><span·class="w"> |
| 170 | ··············</span><span·class="p"·data-group-id="8 | 170 | ··············</span><span·class="p"·data-group-id="7835842636-25">{</span><span·class="ss">restart_type</span><span·class="p">,</span><span·class="ss">permanent</span><span·class="p"·data-group-id="7835842636-25">}</span><span·class="p">,</span><span·class="w"> |
| 171 | ··············</span><span·class="p"·data-group-id="8 | 171 | ··············</span><span·class="p"·data-group-id="7835842636-26">{</span><span·class="ss">shutdown</span><span·class="p">,</span><span·class="mi">2000</span><span·class="p"·data-group-id="7835842636-26">}</span><span·class="p">,</span><span·class="w"> |
| 172 | ··············</span><span·class="p"·data-group-id="8 | 172 | ··············</span><span·class="p"·data-group-id="7835842636-27">{</span><span·class="ss">child_type</span><span·class="p">,</span><span·class="ss">worker</span><span·class="p"·data-group-id="7835842636-27">}</span><span·class="p"·data-group-id="7835842636-19">]</span><span·class="w"> |
| 173 | </span><span·class="n">Eshell</span><span·class="w">·</span><span·class="n">V10</span><span·class="p">.</span><span·class="mi">0</span><span·class="w">··</span><span·class="p"·data-group-id="8 | 173 | </span><span·class="n">Eshell</span><span·class="w">·</span><span·class="n">V10</span><span·class="p">.</span><span·class="mi">0</span><span·class="w">··</span><span·class="p"·data-group-id="7835842636-28">(</span><span·class="ss">abort</span><span·class="w">·</span><span·class="ss">with</span><span·class="w">·</span><span·class="err">^</span><span·class="n">G</span><span·class="p"·data-group-id="7835842636-28">)</span><span·class="w"> |
| 174 | </span><span·class="mi">1</span><span·class="o">></span></code></pre> | 174 | </span><span·class="mi">1</span><span·class="o">></span></code></pre> |
| 175 | </div> | 175 | </div> |
| 176 | <div·class="bottom-actions"·id="bottom-actions"> | 176 | <div·class="bottom-actions"·id="bottom-actions"> |
| 177 | ··<div·class="bottom-actions-item"> | 177 | ··<div·class="bottom-actions-item"> |
| 178 | ······<a·href="system_principles.html"·class="bottom-actions-button"·rel="prev"> | 178 | ······<a·href="system_principles.html"·class="bottom-actions-button"·rel="prev"> |
| Offset 219, 15 lines modified | Offset 219, 15 lines modified | ||
| 219 | ······<p·class="built-using"> | 219 | ······<p·class="built-using"> |
| 220 | ········Built·using | 220 | ········Built·using |
| 221 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 221 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 222 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 222 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 223 | ······</p> | 223 | ······</p> |
| 224 | <p>Copyright·©·1996-202 | 224 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 225 | ····</footer> | 225 | ····</footer> |
| 226 | ··</div> | 226 | ··</div> |
| 227 | </main> | 227 | </main> |
| 228 | </div> | 228 | </div> |
| 229 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 229 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 230 | ··<script> | 230 | ··<script> |
| 231 | ··let·initialized·=·false; | 231 | ··let·initialized·=·false; |
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| 151 | classes,·with·different·origins.·The·<a·href="expressions.html#try">try</a>·expression·can | 151 | classes,·with·different·origins.·The·<a·href="expressions.html#try">try</a>·expression·can |
| 152 | distinguish·between·the·different·classes,·whereas·the | 152 | distinguish·between·the·different·classes,·whereas·the |
| 153 | <a·href="expressions.html#catch-and-throw">catch</a>·expression·cannot.·<code·class="inline">try</code>·and·<code·class="inline">catch</code>·are·described | 153 | <a·href="expressions.html#catch-and-throw">catch</a>·expression·cannot.·<code·class="inline">try</code>·and·<code·class="inline">catch</code>·are·described |
| 154 | in·<a·href="expressions.html">Expressions</a>.</p><table><thead><tr><th·style="text-align:·left;">Class</th><th·style="text-align:·left;">Origin</th></tr></thead><tbody><tr><td·style="text-align:·left;"><code·class="inline">error</code></td><td·style="text-align:·left;">Run-time·error,·for·example,·<code·class="inline">1+a</code>,·or·the·process·called·<a·href="../../erts-16.0/doc/html/erlang.html#error/1"><code·class="inline">error/1</code></a></td></tr><tr><td·style="text-align:·left;"><code·class="inline">exit</code></td><td·style="text-align:·left;">The·process·called·<a·href="../../erts-16.0/doc/html/erlang.html#exit/1"><code·class="inline">exit/1</code></a></td></tr><tr><td·style="text-align:·left;"><code·class="inline">throw</code></td><td·style="text-align:·left;">The·process·called·<a·href="../../erts-16.0/doc/html/erlang.html#throw/1"><code·class="inline">throw/1</code></a></td></tr></tbody></table><p><em>Table:·Exception·Classes.</em></p><p>All·of·the·above·exceptions·can·also·be·generated·by·calling·<a·href="../../erts-16.0/doc/html/erlang.html#raise/3"><code·class="inline">erlang:raise/3</code></a>.</p><p>An·exception·consists·of·its·class,·an·exit·reason·(see | 154 | in·<a·href="expressions.html">Expressions</a>.</p><table><thead><tr><th·style="text-align:·left;">Class</th><th·style="text-align:·left;">Origin</th></tr></thead><tbody><tr><td·style="text-align:·left;"><code·class="inline">error</code></td><td·style="text-align:·left;">Run-time·error,·for·example,·<code·class="inline">1+a</code>,·or·the·process·called·<a·href="../../erts-16.0/doc/html/erlang.html#error/1"><code·class="inline">error/1</code></a></td></tr><tr><td·style="text-align:·left;"><code·class="inline">exit</code></td><td·style="text-align:·left;">The·process·called·<a·href="../../erts-16.0/doc/html/erlang.html#exit/1"><code·class="inline">exit/1</code></a></td></tr><tr><td·style="text-align:·left;"><code·class="inline">throw</code></td><td·style="text-align:·left;">The·process·called·<a·href="../../erts-16.0/doc/html/erlang.html#throw/1"><code·class="inline">throw/1</code></a></td></tr></tbody></table><p><em>Table:·Exception·Classes.</em></p><p>All·of·the·above·exceptions·can·also·be·generated·by·calling·<a·href="../../erts-16.0/doc/html/erlang.html#raise/3"><code·class="inline">erlang:raise/3</code></a>.</p><p>An·exception·consists·of·its·class,·an·exit·reason·(see |
| 155 | <a·href="errors.html#exit_reasons">Exit·Reason</a>),·and·a·stack·trace·(which·aids·in·finding | 155 | <a·href="errors.html#exit_reasons">Exit·Reason</a>),·and·a·stack·trace·(which·aids·in·finding |
| 156 | the·code·location·of·the·exception).</p><p>The·stack·trace·can·be·bound·to·a·variable·from·within·a·<code·class="inline">try</code>·expression·for | 156 | the·code·location·of·the·exception).</p><p>The·stack·trace·can·be·bound·to·a·variable·from·within·a·<code·class="inline">try</code>·expression·for |
| 157 | any·exception·class,·or·as·part·of·the·exit·reason·when·a·run-time·error·is | 157 | any·exception·class,·or·as·part·of·the·exit·reason·when·a·run-time·error·is |
| 158 | caught·by·a·<code·class="inline">catch</code>.·Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="p"·data-group-id=" | 158 | caught·by·a·<code·class="inline">catch</code>.·Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="p"·data-group-id="4714510292-1">{</span><span·class="ss">'EXIT'</span><span·class="p">,</span><span·class="p"·data-group-id="4714510292-2">{</span><span·class="ss">test</span><span·class="p">,</span><span·class="n">Stacktrace</span><span·class="p"·data-group-id="471[·...·truncated·by·diffoscope;·len:·453,·SHA:·1ed28b126b60a73b8bd35452670c908fcb681c40331d74c3d3b95c38e14125ca·...·]-3">)</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Stacktrace</span><span·class="p">.</span><span·class="w"> |
| 159 | </span><span·class="p"·data-group-id=" | 159 | </span><span·class="p"·data-group-id="4714510292-5">[</span><span·class="p"·data-group-id="4714510292-6">{</span><span·class="ss">shell</span><span·class="p">,</span><span·class="ss">apply_fun</span><span·class="p">,</span><span·class="mi">3</span><span·class="p">,</span><span·class="p"·data-g[·...·truncated·by·diffoscope;·len:·125,·SHA:·b833b3fa6d4f82b65d08947e50fbdbdd8b80c430ac1e5a631991b3a6ae7a04d6·...·]-6">}</span><span·class="p">,</span><span·class="w"> |
| 160 | ·</span><span·class="p"·data-group-id=" | 160 | ·</span><span·class="p"·data-group-id="4714510292-8">{</span><span·class="ss">erl_eval</span><span·class="p">,</span><span·class="ss">do_apply</span><span·class="p">,</span><span·class="mi">6</span><span·class="p">,</span><span·class="p"·data-group-id="4714510292-9">[</span><span·class="p"·data[·...·truncated·by·diffoscope;·len:·74,·SHA:·39c95ef592dc21c2f4faf5f94da5ba1cef5236c15b25e358c1157d5dbddd3442·...·]-8">}</span><span·class="p">,</span><span·class="w"> |
| 161 | ·</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p"·data-group-id=" | 161 | ·</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p"·data-group-id="4714510292-5">]</span><span·class="gp·unselectable"> |
| 162 | >·</span><span·class="k">try</span><span·class="w">·</span><span·class="nf">throw</span><span·class="p"·data-group-id=" | 162 | >·</span><span·class="k">try</span><span·class="w">·</span><span·class="nf">throw</span><span·class="p"·data-group-id="4714510292-10">(</span><span·class="ss">test</span><span·class="p"·data-group-id="4714510292-10">)</span><span·class="w">·</span><span·class="k">catch</span><span·class="w">·</span><span·class="n">Class</span><span·class="p">:</span><span·class="n">Reason</span><span·class="p">:</span><span·class="n">Stacktrace</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">Stacktrace</span><span·class="w">·</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> |
| 163 | </span><span·class="p"·data-group-id=" | 163 | </span><span·class="p"·data-group-id="4714510292-11">[</span><span·class="p"·data-group-id="4714510292-12">{</span><span·class="ss">shell</span><span·class="p">,</span><span·class="ss">apply_fun</span><span·class="p">,</span><span·class="mi">3</span><span·class="p">,</span><span·class="p"·data[·...·truncated·by·diffoscope;·len:·129,·SHA:·5fd69cb0cc1f55458fa4c186c30370ba25626d350ec0f55542c3df94d3bb8f06·...·]-12">}</span><span·class="p">,</span><span·class="w"> |
| 164 | ·</span><span·class="p"·data-group-id=" | 164 | ·</span><span·class="p"·data-group-id="4714510292-14">{</span><span·class="ss">erl_eval</span><span·class="p">,</span><span·class="ss">do_apply</span><span·class="p">,</span><span·class="mi">6</span><span·class="p">,</span><span·class="p"·data-group-id="4714510292-15">[</span><span·class="p"·da[·...·truncated·by·diffoscope;·len:·77,·SHA:·24345c3032d205967119be0323dea205eb2457a49a4254372407adcc7fac85dd·...·]-14">}</span><span·class="p">,</span><span·class="w"> |
| 165 | ·</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p"·data-group-id=" | 165 | ·</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p"·data-group-id="4714510292-11">]</span></code></pre><p><a·href=""·id="stacktrace"></a></p><h3·id="the-call-stack-back-trace-stacktrace"·class="section-heading"> |
| 166 | ··<a·href="#the-call-stack-back-trace-stacktrace"·class="hover-link"> | 166 | ··<a·href="#the-call-stack-back-trace-stacktrace"·class="hover-link"> |
| 167 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 167 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 168 | ··</a> | 168 | ··</a> |
| 169 | ··<span·class="text">The·call-stack·back·trace·(stacktrace)</span> | 169 | ··<span·class="text">The·call-stack·back·trace·(stacktrace)</span> |
| 170 | </h3> | 170 | </h3> |
| 171 | <p>The·stack·back-trace·(<a·href="../../erts-16.0/doc/html/erlang.html#t:stacktrace/0"><em>stacktrace</em></a>)·is·a·list·that | 171 | <p>The·stack·back-trace·(<a·href="../../erts-16.0/doc/html/erlang.html#t:stacktrace/0"><em>stacktrace</em></a>)·is·a·list·that |
| 172 | contains·<code·class="inline">{Module,·Function,·Arity,·ExtraInfo}</code>·and/or·<code·class="inline">{Fun,·Arity,·ExtraInfo}</code> | 172 | contains·<code·class="inline">{Module,·Function,·Arity,·ExtraInfo}</code>·and/or·<code·class="inline">{Fun,·Arity,·ExtraInfo}</code> |
| Offset 283, 15 lines modified | Offset 283, 15 lines modified | ||
| 283 | ······<p·class="built-using"> | 283 | ······<p·class="built-using"> |
| 284 | ········Built·using | 284 | ········Built·using |
| 285 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 285 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 286 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 286 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 287 | ······</p> | 287 | ······</p> |
| 288 | <p>Copyright·©·1996-202 | 288 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 289 | ····</footer> | 289 | ····</footer> |
| 290 | ··</div> | 290 | ··</div> |
| 291 | </main> | 291 | </main> |
| 292 | </div> | 292 | </div> |
| 293 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 293 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 294 | ··<script> | 294 | ··<script> |
| 295 | ··let·initialized·=·false; | 295 | ··let·initialized·=·false; |
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| 135 | event·handler.</p><h2·id="example"·class="section-heading"> | 135 | event·handler.</p><h2·id="example"·class="section-heading"> |
| 136 | ··<a·href="#example"·class="hover-link"> | 136 | ··<a·href="#example"·class="hover-link"> |
| 137 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 137 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 138 | ··</a> | 138 | ··</a> |
| 139 | ··<span·class="text">Example</span> | 139 | ··<span·class="text">Example</span> |
| 140 | </h2> | 140 | </h2> |
| 141 | <p>The·callback·module·for·the·event·handler·writing·error·messages·to·the·terminal | 141 | <p>The·callback·module·for·the·event·handler·writing·error·messages·to·the·terminal |
| 142 | can·look·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 142 | can·look·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="0784648148-1">(</span><span·class="ss">terminal_logger</span><span·class="p"·data-group-id="0784648148-1">)</span><span·class="p">.</span><span·class="w"> |
| 143 | </span><span·class="p">-</span><span·class="na">behaviour</span><span·class="p"·data-group-id=" | 143 | </span><span·class="p">-</span><span·class="na">behaviour</span><span·class="p"·data-group-id="0784648148-2">(</span><span·class="ss">gen_event</span><span·class="p"·data-group-id="0784648148-2">)</span><span·class="p">.</span><span·class="w"> |
| 144 | </span><span·class="w"> | 144 | </span><span·class="w"> |
| 145 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 145 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="0784648148-3">(</span><span·class="p"·data-group-id="0784648148-4">[</span><span·class="ss">init</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">handle_event</span><span·class="p">/</s[·...·truncated·by·diffoscope;·len:·253,·SHA:·8d2ee631aaefd2a1c9acccd753cee43b448fd308ac7d4df350d826276f13d7d0·...·]-3">)</span><span·class="p">.</span><span·class="w"> |
| 146 | </span><span·class="nf">init</span><span·class="p"·data-group-id=" | 146 | </span><span·class="nf">init</span><span·class="p"·data-group-id="0784648148-5">(</span><span·class="p">_</span><span·class="n">Args</span><span·class="p"·data-group-id="0784648148-5">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 147 | ····</span><span·class="p"·data-group-id=" | 147 | ····</span><span·class="p"·data-group-id="0784648148-6">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0784648148-7">[</span><span·class="p"·data-group-id="0784648148-7">]</span><span·class="p"·data-group-id="0784648148-6">}</span><span·class="p">.</span><span·class="w"> |
| 148 | </span><span·class="nf">handle_event</span><span·class="p"·data-group-id=" | 148 | </span><span·class="nf">handle_event</span><span·class="p"·data-group-id="0784648148-8">(</span><span·class="n">ErrorMsg</span><span·class="p">,</span><span·class="w">·</span><span·class="n">State</span><span·class="p"·data-group-id="0784648148-8">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 149 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 149 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="0784648148-9">(</span><span·class="s">"***Error***·</span><span·class="si">~p</span><span·class="si">~n</span><span·class="s">"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0784648148-10">[</span><span·clas[·...·truncated·by·diffoscope;·len:·116,·SHA:·479027b7dfc0e4394bf314d086927879f14be874aad79f66d19abaff7b04d27b·...·]-9">)</span><span·class="p">,</span><span·class="w"> |
| 150 | ····</span><span·class="p"·data-group-id=" | 150 | ····</span><span·class="p"·data-group-id="0784648148-11">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">State</span><span·class="p"·data-group-id="0784648148-11">}</span><span·class="p">.</span><span·class="w"> |
| 151 | </span><span·class="nf">terminate</span><span·class="p"·data-group-id=" | 151 | </span><span·class="nf">terminate</span><span·class="p"·data-group-id="0784648148-12">(</span><span·class="p">_</span><span·class="n">Args</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="n">State</span><span·class="p"·data-group-id="0784648148-12">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 152 | ····</span><span·class="ss">ok</span><span·class="p">.</span></code></pre><p>The·callback·module·for·the·event·handler·writing·error·messages·to·a·file·can | 152 | ····</span><span·class="ss">ok</span><span·class="p">.</span></code></pre><p>The·callback·module·for·the·event·handler·writing·error·messages·to·a·file·can |
| 153 | look·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="2 | 153 | look·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="3293256570-1">(</span><span·class="ss">file_logger</span><span·class="p"·data-group-id="3293256570-1">)</span><span·class="p">.</span><span·class="w"> |
| 154 | </span><span·class="p">-</span><span·class="na">behaviour</span><span·class="p"·data-group-id="2 | 154 | </span><span·class="p">-</span><span·class="na">behaviour</span><span·class="p"·data-group-id="3293256570-2">(</span><span·class="ss">gen_event</span><span·class="p"·data-group-id="3293256570-2">)</span><span·class="p">.</span><span·class="w"> |
| 155 | </span><span·class="w"> | 155 | </span><span·class="w"> |
| 156 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="2 | 156 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="3293256570-3">(</span><span·class="p"·data-group-id="3293256570-4">[</span><span·class="ss">init</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">handle_event</span><span·class="p">/</s[·...·truncated·by·diffoscope;·len:·253,·SHA:·c28baa7dd3fdaddedb1d227d6c75957ff1a0267c3c936742b401bfae2604cc91·...·]-3">)</span><span·class="p">.</span><span·class="w"> |
| 157 | </span><span·class="nf">init</span><span·class="p"·data-group-id="2 | 157 | </span><span·class="nf">init</span><span·class="p"·data-group-id="3293256570-5">(</span><span·class="n">File</span><span·class="p"·data-group-id="3293256570-5">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 158 | ····</span><span·class="p"·data-group-id="2 | 158 | ····</span><span·class="p"·data-group-id="3293256570-6">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Fd</span><span·class="p"·data-group-id="3293256570-6">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·clas[·...·truncated·by·diffoscope;·len:·267,·SHA:·85a0eb2f448b9035f35ee2114eb190b83f4fea738c8bc966fadb7e11235f4ac4·...·]-7">)</span><span·class="p">,</span><span·class="w"> |
| 159 | ····</span><span·class="p"·data-group-id="2 | 159 | ····</span><span·class="p"·data-group-id="3293256570-8">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Fd</span><span·class="p"·data-group-id="3293256570-8">}</span><span·class="p">.</span><span·class="w"> |
| 160 | </span><span·class="nf">handle_event</span><span·class="p"·data-group-id="2 | 160 | </span><span·class="nf">handle_event</span><span·class="p"·data-group-id="3293256570-9">(</span><span·class="n">ErrorMsg</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Fd</span><span·class="p"·data-group-id="3293256570-9">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 161 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="2 | 161 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="3293256570-10">(</span><span·class="n">Fd</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"***Error***·</span><span·class="si">~p</span><span·class="si">~n</span><span·class="s">"</span><span·class="p">,</span><span·class="w[·...·truncated·by·diffoscope;·len:·190,·SHA:·0a99ce65d9c5b5f42c53de387c75643722ffc6f0ebb1773f32c9428878976a5a·...·]-10">)</span><span·class="p">,</span><span·class="w"> |
| 162 | ····</span><span·class="p"·data-group-id="2 | 162 | ····</span><span·class="p"·data-group-id="3293256570-12">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Fd</span><span·class="p"·data-group-id="3293256570-12">}</span><span·class="p">.</span><span·class="w"> |
| 163 | </span><span·class="nf">terminate</span><span·class="p"·data-group-id="2 | 163 | </span><span·class="nf">terminate</span><span·class="p"·data-group-id="3293256570-13">(</span><span·class="p">_</span><span·class="n">Args</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Fd</span><span·class="p"·data-group-id="3293256570-13">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 164 | ····</span><span·class="nc">file</span><span·class="p">:</span><span·class="nf">close</span><span·class="p"·data-group-id="2 | 164 | ····</span><span·class="nc">file</span><span·class="p">:</span><span·class="nf">close</span><span·class="p"·data-group-id="3293256570-14">(</span><span·class="n">Fd</span><span·class="p"·data-group-id="3293256570-14">)</span><span·class="p">.</span></code></pre><p>The·code·is·explained·in·the·next·sections.</p><p><a·href=""·id="mgr"></a></p><h2·id="starting-an-event-manager"·class="section-heading"> |
| 165 | ··<a·href="#starting-an-event-manager"·class="hover-link"> | 165 | ··<a·href="#starting-an-event-manager"·class="hover-link"> |
| 166 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 166 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 167 | ··</a> | 167 | ··</a> |
| 168 | ··<span·class="text">Starting·an·Event·Manager</span> | 168 | ··<span·class="text">Starting·an·Event·Manager</span> |
| 169 | </h2> | 169 | </h2> |
| 170 | <p>To·start·an·event·manager·for·handling·errors,·as·described·in·the·previous | 170 | <p>To·start·an·event·manager·for·handling·errors,·as·described·in·the·previous |
| 171 | example,·call·the·following·function:</p><pre><code·class="text">gen_event:start_link({local,·error_man})</code></pre><p><a·href="../../lib/stdlib-7.0/doc/html/gen_event.html#start_link/1"><code·class="inline">gen_event:start_link/1</code></a>·spawns·and·links·to·a·new·event·manager·process.</p><p>The·argument,·<code·class="inline">{local,·error_man}</code>,·specifies·the·name·under·which·the | 171 | example,·call·the·following·function:</p><pre><code·class="text">gen_event:start_link({local,·error_man})</code></pre><p><a·href="../../lib/stdlib-7.0/doc/html/gen_event.html#start_link/1"><code·class="inline">gen_event:start_link/1</code></a>·spawns·and·links·to·a·new·event·manager·process.</p><p>The·argument,·<code·class="inline">{local,·error_man}</code>,·specifies·the·name·under·which·the |
| Offset 184, 57 lines modified | Offset 184, 57 lines modified | ||
| 184 | manager·that·is·not·part·of·a·supervision·tree.</p><h2·id="adding-an-event-handler"·class="section-heading"> | 184 | manager·that·is·not·part·of·a·supervision·tree.</p><h2·id="adding-an-event-handler"·class="section-heading"> |
| 185 | ··<a·href="#adding-an-event-handler"·class="hover-link"> | 185 | ··<a·href="#adding-an-event-handler"·class="hover-link"> |
| 186 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 186 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 187 | ··</a> | 187 | ··</a> |
| 188 | ··<span·class="text">Adding·an·Event·Handler</span> | 188 | ··<span·class="text">Adding·an·Event·Handler</span> |
| 189 | </h2> | 189 | </h2> |
| 190 | <p>The·following·example·shows·how·to·start·an·event·manager·and·add·an·event | 190 | <p>The·following·example·shows·how·to·start·an·event·manager·and·add·an·event |
| 191 | handler·to·it·by·using·the·shell:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">gen_event</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id=" | 191 | handler·to·it·by·using·the·shell:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">gen_event</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id="6685080540-1">(</span><span·class="p"·data-group-id="6685080540-2">{</span><span·class="ss">local</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">error_man</span><span·class="p"·data-group-id="6685080540-2">}</span><span·class="p"·da[·...·truncated·by·diffoscope;·len:·23,·SHA:·73be982dfe98ccbb9b4fea4fcfa3c1cd35bd91837a8ae34422aafe090cf7a68b·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 192 | </span><span·class="p"·data-group-id=" | 192 | </span><span·class="p"·data-group-id="6685080540-3">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="o"><</span><span·class="mf">0.31</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="p"·data-group-id="6685080540-3">}</span><span·class="gp·unselectable"> |
| 193 | 2>·</span><span·class="nc">gen_event</span><span·class="p">:</span><span·class="nf">add_handler</span><span·class="p"·data-group-id=" | 193 | 2>·</span><span·class="nc">gen_event</span><span·class="p">:</span><span·class="nf">add_handler</span><span·class="p"·data-group-id="6685080540-4">(</span><span·class="ss">error_man</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">terminal_logger</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6685080540-5">[</span><span·class="[·...·truncated·by·diffoscope;·len:·81,·SHA:·27d0f10f817a4fa0fa569de12cdfe5450573750e6b9b595d78b4f76cccfe2243·...·]-4">)</span><span·class="p">.</span><span·class="w"> |
| 194 | </span><span·class="ss">ok</span></code></pre><p>This·function·sends·a·message·to·the·event·manager·registered·as·<code·class="inline">error_man</code>, | 194 | </span><span·class="ss">ok</span></code></pre><p>This·function·sends·a·message·to·the·event·manager·registered·as·<code·class="inline">error_man</code>, |
| 195 | telling·it·to·add·the·event·handler·<code·class="inline">terminal_logger</code>.·The·event·manager·calls | 195 | telling·it·to·add·the·event·handler·<code·class="inline">terminal_logger</code>.·The·event·manager·calls |
| 196 | the·callback·function·<code·class="inline">terminal_logger:init([])</code>,·where·the·argument·<code·class="inline">[]</code>·is·the | 196 | the·callback·function·<code·class="inline">terminal_logger:init([])</code>,·where·the·argument·<code·class="inline">[]</code>·is·the |
| 197 | third·argument·to·<code·class="inline">add_handler</code>.·<code·class="inline">init/1</code>·is·expected·to·return·<code·class="inline">{ok,·State}</code>, | 197 | third·argument·to·<code·class="inline">add_handler</code>.·<code·class="inline">init/1</code>·is·expected·to·return·<code·class="inline">{ok,·State}</code>, |
| 198 | where·<code·class="inline">State</code>·is·the·internal·state·of·the·event·handler.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">init</span><span·class="p"·data-group-id="1362902199-1">(</span><span·class="p">_</span><span·class="n">Args</span><span·class="p"·data-group-id="1362902199-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | ||
| 199 | 198 | where·<code·class="inline">State</code>·is·the·internal·state·of·the·event·handler.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">init</span><span·class="p"·data-group-id="0059797735-1">(</span><span·class="p">_</span><span·class="n">[·...·truncated·by·diffoscope;·len:·132,·SHA:·5d359d357ec93150edcfe50f61895240ac19cfca174add92d6ae71f568381a1f·...·] | |
| 199 | ····</span><span·class="p"·data-group-id="0059797735-2">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0059797735-3">[</span><span·class="p"·data-group-id="0059797735-3">]</span><span·class="p"·data-group-id="0059797735-2">}</span><span·class="p">.</span></code></pre><p>Here,·<code·class="inline">init/1</code>·does·not·need·any·input·data·and·ignores·its·argument.·For | ||
| 200 | <code·class="inline">terminal_logger</code>,·the·internal·state·is·not·used.·For·<code·class="inline">file_logger</code>,·the | 200 | <code·class="inline">terminal_logger</code>,·the·internal·state·is·not·used.·For·<code·class="inline">file_logger</code>,·the |
| 201 | internal·state·is·used·to·save·the·open·file·descriptor.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">init</span><span·class="p"·data-group-id=" | 201 | internal·state·is·used·to·save·the·open·file·descriptor.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">init</span><span·class="p"·data-group-id="3733957908-1">(</span><span·class="n">File</span><span·class="p"·data-group-id="3733957908-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 202 | ····</span><span·class="p"·data-group-id=" | 202 | ····</span><span·class="p"·data-group-id="3733957908-2">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Fd</span><span·class="p"·data-group-id="3733957908-2">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·clas[·...·truncated·by·diffoscope;·len:·267,·SHA:·4428551f0fab8434ce8385e1c86a69d1b74560fc7e2fa38815289d1abb3470a8·...·]-3">)</span><span·class="p">,</span><span·class="w"> |
| 203 | ····</span><span·class="p"·data-group-id=" | 203 | ····</span><span·class="p"·data-group-id="3733957908-4">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Fd</span><span·class="p"·data-group-id="3733957908-4">}</span><span·class="p">.</span></code></pre><h2·id="notifying-about-events"·class="section-heading"> |
| 204 | ··<a·href="#notifying-about-events"·class="hover-link"> | 204 | ··<a·href="#notifying-about-events"·class="hover-link"> |
| 205 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 205 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 206 | ··</a> | 206 | ··</a> |
| 207 | ··<span·class="text">Notifying·about·Events</span> | 207 | ··<span·class="text">Notifying·about·Events</span> |
| 208 | </h2> | 208 | </h2> |
| 209 | <pre><code·class="text">3>·gen_event:notify(error_man,·no_reply). | 209 | <pre><code·class="text">3>·gen_event:notify(error_man,·no_reply). |
| 210 | ***Error***·no_reply | 210 | ***Error***·no_reply |
| 211 | ok</code></pre><p><code·class="inline">error_man</code>·is·the·name·of·the·event·manager·and·<code·class="inline">no_reply</code>·is·the·event.</p><p>The·event·is·made·into·a·message·and·sent·to·the·event·manager.·When·the·event | 211 | ok</code></pre><p><code·class="inline">error_man</code>·is·the·name·of·the·event·manager·and·<code·class="inline">no_reply</code>·is·the·event.</p><p>The·event·is·made·into·a·message·and·sent·to·the·event·manager.·When·the·event |
| 212 | is·received,·the·event·manager·calls·<code·class="inline">handle_event(Event,·State)</code>·for·each | 212 | is·received,·the·event·manager·calls·<code·class="inline">handle_event(Event,·State)</code>·for·each |
| 213 | installed·event·handler,·in·the·same·order·as·they·were·added.·The·function·is | 213 | installed·event·handler,·in·the·same·order·as·they·were·added.·The·function·is |
| 214 | expected·to·return·a·tuple·<code·class="inline">{ok,State1}</code>,·where·<code·class="inline">State1</code>·is·a·new·value·for·the | 214 | expected·to·return·a·tuple·<code·class="inline">{ok,State1}</code>,·where·<code·class="inline">State1</code>·is·a·new·value·for·the |
| 215 | state·of·the·event·handler.</p><p>In·<code·class="inline">terminal_logger</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">handle_event</span><span·class="p"·data-group-id=" | 215 | state·of·the·event·handler.</p><p>In·<code·class="inline">terminal_logger</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">handle_event</span><span·class="p"·data-group-id="0077886654-1">(</span><span·class="n">ErrorMsg</span><span·class="p">,</span><span·class="w">·</span><span·class="n">State</span><span·class="p"·data-group-id="0077886654-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 216 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="0077886654-2">(</span><span·class="s">"***Error***·</span><span·class="si">~p</span><span·class="si">~n</span><span·class="s">"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0077886654-3">[</span><span·class="n">ErrorMsg</span><span·class="p"·data-group-id="0077886654-3">]</span><span·class="p"·data-group-id="0077886654-2">)</span><span·class="p">,</span><span·class="w"> | ||
| 217 | ····</span><span·class="p"·data-group-id="0077886654-4">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">State</span><span·class="p"·data-group-id="0077886654-4">}</span><span·class="p">.</span></code></pre><p>In·<code·class="inline">file_logger</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">handle_event</span><span·class="p"·data-group-id="6317760596-1">(</span><span·class="n">ErrorMsg</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Fd</span><span·class="p"·data-group-id="6317760596-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | ||
| 216 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 218 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="6317760596-2">(</span><span·class="n">Fd</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"***Error***·</span><span·class="si">~p</span><span·class="si">~n</span><span·class="s">"</span><span·class="p">,</span><span·class="w"[·...·truncated·by·diffoscope;·len:·187,·SHA:·1d40c2fddfb4c7c9f61af6b0f13c1d17b4052f8c76458e8a31aa7d0e15665aea·...·]-2">)</span><span·class="p">,</span><span·class="w"> |
| 217 | ····</span><span·class="p"·data-group-id="8096858052-4">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">State</span><span·class="p"·data-group-id="8096858052-4">}</span><span·class="p">.</span></code></pre><p>In·<code·class="inline">file_logger</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">handle_event</span><span·class="p"·data-group-id="9860838255-1">(</span><span·class="n">ErrorMsg</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Fd</span><span·class="p"·data-group-id="9860838255-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | ||
| 218 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="9860838255-2">(</span><span·class="n">Fd</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"***Error***·</span><span·class="si">~p</span><span·class="si">~n</span><span·class="s">"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9860838255-3">[</span><span·class="n">ErrorMsg</span><span·class="p"·data-group-id="9860838255-3">]</span><span·class="p"·data-group-id="9860838255-2">)</span><span·class="p">,</span><span·class="w"> | ||
| 219 | ····</span><span·class="p"·data-group-id=" | 219 | ····</span><span·class="p"·data-group-id="6317760596-4">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Fd</span><span·class="p"·data-group-id="6317760596-4">}</span><span·class="p">.</span></code></pre><h2·id="deleting-an-event-handler"·class="section-heading"> |
| 220 | ··<a·href="#deleting-an-event-handler"·class="hover-link"> | 220 | ··<a·href="#deleting-an-event-handler"·class="hover-link"> |
| 221 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 221 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 222 | ··</a> | 222 | ··</a> |
| 223 | ··<span·class="text">Deleting·an·Event·Handler</span> | 223 | ··<span·class="text">Deleting·an·Event·Handler</span> |
| 224 | </h2> | 224 | </h2> |
| 225 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">4>·</span><span·class="nc">gen_event</span><span·class="p">:</span><span·class="nf">delete_handler</span><span·class="p"·data-group-id=" | 225 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">4>·</span><span·class="nc">gen_event</span><span·class="p">:</span><span·class="nf">delete_handler</span><span·class="p"·data-group-id="9391776384-1">(</span><span·class="ss">error_man</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">terminal_logger</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9391776384-2">[</span><span·class="[·...·truncated·by·diffoscope;·len:·81,·SHA:·eff3df095152c8bcc1b265d707c722abd376fc42c44834cd518ca06e8f75d171·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 226 | </span><span·class="ss">ok</span></code></pre><p>This·function·sends·a·message·to·the·event·manager·registered·as·<code·class="inline">error_man</code>, | 226 | </span><span·class="ss">ok</span></code></pre><p>This·function·sends·a·message·to·the·event·manager·registered·as·<code·class="inline">error_man</code>, |
| 227 | telling·it·to·delete·the·event·handler·<code·class="inline">terminal_logger</code>.·The·event·manager | 227 | telling·it·to·delete·the·event·handler·<code·class="inline">terminal_logger</code>.·The·event·manager |
| 228 | calls·the·callback·function·<code·class="inline">terminal_logger:terminate([],·State)</code>,·where·the | 228 | calls·the·callback·function·<code·class="inline">terminal_logger:terminate([],·State)</code>,·where·the |
| 229 | argument·<code·class="inline">[]</code>·is·the·third·argument·to·<code·class="inline">delete_handler</code>.·<code·class="inline">terminate/2</code>·is·to·be | 229 | argument·<code·class="inline">[]</code>·is·the·third·argument·to·<code·class="inline">delete_handler</code>.·<code·class="inline">terminate/2</code>·is·to·be |
| 230 | the·opposite·of·<code·class="inline">init/1</code>·and·do·any·necessary·cleaning·up.·Its·return·value·is | 230 | the·opposite·of·<code·class="inline">init/1</code>·and·do·any·necessary·cleaning·up.·Its·return·value·is |
| 231 | ignored.</p><p>For·<code·class="inline">terminal_logger</code>,·no·cleaning·up·is·necessary:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">terminate</span><span·class="p"·data-group-id="5179321095-1">(</span><span·class="p">_</span><span·class="n">Args</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="n">State</span><span·class="p"·data-group-id="5179321095-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | ||
| 232 | 231 | ignored.</p><p>For·<code·class="inline">terminal_logger</code>,·no·cleaning·up·is·necessary:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">terminate</span><span·class="p"·data-group-id="5018400224-1">(</span><span·class="p">_</span><s[·...·truncated·by·diffoscope;·len:·166,·SHA:·d5a160c9f2ad914c453c99ed857ddd95f490ba76348cb5f85ed844f210d17143·...·]-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | |
| 232 | ····</span><span·class="ss">ok</span><span·class="p">.</span></code></pre><p>For·<code·class="inline">file_logger</code>,·the·file·descriptor·opened·in·<code·class="inline">init</code>·must·be·closed:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">terminate</span><span·class="p"·data-group-id="1724639712-1">(</span><span·class="p">_</span><span·class="n">Args</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Fd</span><span·class="p"·data-group-id="1724639712-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | ||
| 233 | ····</span><span·class="nc">file</span><span·class="p">:</span><span·class="nf">close</span><span·class="p"·data-group-id=" | 233 | ····</span><span·class="nc">file</span><span·class="p">:</span><span·class="nf">close</span><span·class="p"·data-group-id="1724639712-2">(</span><span·class="n">Fd</span><span·class="p"·data-group-id="1724639712-2">)</span><span·class="p">.</span></code></pre><h2·id="stopping"·class="section-heading"> |
| 234 | ··<a·href="#stopping"·class="hover-link"> | 234 | ··<a·href="#stopping"·class="hover-link"> |
| 235 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 235 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 236 | ··</a> | 236 | ··</a> |
| 237 | ··<span·class="text">Stopping</span> | 237 | ··<span·class="text">Stopping</span> |
| 238 | </h2> | 238 | </h2> |
| 239 | <p>When·an·event·manager·is·stopped,·it·gives·each·of·the·installed·event·handlers | 239 | <p>When·an·event·manager·is·stopped,·it·gives·each·of·the·installed·event·handlers |
| 240 | the·chance·to·clean·up·by·calling·<code·class="inline">terminate/2</code>,·the·same·way·as·when·deleting·a | 240 | the·chance·to·clean·up·by·calling·<code·class="inline">terminate/2</code>,·the·same·way·as·when·deleting·a |
| Offset 249, 33 lines modified | Offset 249, 33 lines modified | ||
| 249 | this·is·done·is·defined·by·a·<a·href="sup_princ.html#shutdown">shutdown·strategy</a>·set·in | 249 | this·is·done·is·defined·by·a·<a·href="sup_princ.html#shutdown">shutdown·strategy</a>·set·in |
| 250 | the·supervisor.</p><h3·id="standalone-event-managers"·class="section-heading"> | 250 | the·supervisor.</p><h3·id="standalone-event-managers"·class="section-heading"> |
| 251 | ··<a·href="#standalone-event-managers"·class="hover-link"> | 251 | ··<a·href="#standalone-event-managers"·class="hover-link"> |
| 252 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 252 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 253 | ··</a> | 253 | ··</a> |
| 254 | ··<span·class="text">Standalone·Event·Managers</span> | 254 | ··<span·class="text">Standalone·Event·Managers</span> |
| 255 | </h3> | 255 | </h3> |
| 256 | <p>An·event·manager·can·also·be·stopped·by·calling:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">gen_event</span><span·class="p">:</span><span·class="nf">stop</span><span·class="p"·data-group-id="3 | 256 | <p>An·event·manager·can·also·be·stopped·by·calling:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">gen_event</span><span·class="p">:</span><span·class="nf">stop</span><span·class="p"·data-group-id="3581349056-1">(</span><span·class="ss">error_man</span><span·class="p"·data-group-id="3581349056-1">)</span><span·class="p">.</span><span·class="w"> |
| 257 | </span><span·class="ss">ok</span></code></pre><h2·id="handling-other-messages"·class="section-heading"> | 257 | </span><span·class="ss">ok</span></code></pre><h2·id="handling-other-messages"·class="section-heading"> |
| 258 | ··<a·href="#handling-other-messages"·class="hover-link"> | 258 | ··<a·href="#handling-other-messages"·class="hover-link"> |
| 259 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 259 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 260 | ··</a> | 260 | ··</a> |
| 261 | ··<span·class="text">Handling·Other·Messages</span> | 261 | ··<span·class="text">Handling·Other·Messages</span> |
| 262 | </h2> | 262 | </h2> |
| 263 | <p>If·the·<code·class="inline">gen_event</code>·process·is·to·be·able·to·receive·other·messages | 263 | <p>If·the·<code·class="inline">gen_event</code>·process·is·to·be·able·to·receive·other·messages |
| 264 | than·events,·the·callback·function·<code·class="inline">handle_info(Info,·State)</code>·must·be | 264 | than·events,·the·callback·function·<code·class="inline">handle_info(Info,·State)</code>·must·be |
| 265 | implemented·to·handle·them.·Examples·of·other·messages·are·exit | 265 | implemented·to·handle·them.·Examples·of·other·messages·are·exit |
| 266 | messages·if·the·event·manager·is·linked·to·other·processes·than·the | 266 | messages·if·the·event·manager·is·linked·to·other·processes·than·the |
| 267 | supervisor·(for·example·via·<a·href="../../lib/stdlib-7.0/doc/html/gen_event.html#add_sup_handler/3"><code·class="inline">gen_event:add_sup_handler/3</code></a>)·and·is | 267 | supervisor·(for·example·via·<a·href="../../lib/stdlib-7.0/doc/html/gen_event.html#add_sup_handler/3"><code·class="inline">gen_event:add_sup_handler/3</code></a>)·and·is |
| 268 | trapping·exit·signals.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">handle_info</span><span·class="p"·data-group-id=" | 268 | trapping·exit·signals.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">handle_info</span><span·class="p"·data-group-id="5027692569-1">(</span><span·class="p"·data-group-id="5027692569-2">{</span><span·class="ss">'EXIT'</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Pid</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Reaso[·...·truncated·by·diffoscope;·len:·178,·SHA:·68b5678c2da147e840ff8a69f9fba1b483c02af4366b071f756f11f2f30f9848·...·]-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 269 | ····</span><span·class="c1">%%·Code·to·handle·exits·here.</span><span·class="w"> | 269 | ····</span><span·class="c1">%%·Code·to·handle·exits·here.</span><span·class="w"> |
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| 131 | int·bar(int·y)·{ | 131 | int·bar(int·y)·{ |
| 132 | ··return·y*2; | 132 | ··return·y*2; |
| 133 | }</code></pre><p>The·functions·are·deliberately·kept·as·simple·as·possible,·for·readability | 133 | }</code></pre><p>The·functions·are·deliberately·kept·as·simple·as·possible,·for·readability |
| 134 | reasons.</p><p>From·an·Erlang·perspective,·it·is·preferable·to·be·able·to·call·<code·class="inline">foo</code>·and·<code·class="inline">bar</code> | 134 | reasons.</p><p>From·an·Erlang·perspective,·it·is·preferable·to·be·able·to·call·<code·class="inline">foo</code>·and·<code·class="inline">bar</code> |
| 135 | without·having·to·bother·about·that·they·are·C·functions:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%·Erlang·code</span><span·class="w"> | 135 | without·having·to·bother·about·that·they·are·C·functions:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%·Erlang·code</span><span·class="w"> |
| 136 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> | 136 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> |
| 137 | </span><span·class="n">Res</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">complex</span><span·class="p">:</span><span·class="nf">foo</span><span·class="p"·data-group-id="6 | 137 | </span><span·class="n">Res</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">complex</span><span·class="p">:</span><span·class="nf">foo</span><span·class="p"·data-group-id="4641289499-1">(</span><span·class="n">X</span><span·class="p"·data-group-id="4641289499-1">)</span><span·class="p">,</span><span·class="w"> |
| 138 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span></code></pre><p>Here,·the·communication·with·C·is·hidden·in·the·implementation·of·<code·class="inline">complex.erl</code>. | 138 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span></code></pre><p>Here,·the·communication·with·C·is·hidden·in·the·implementation·of·<code·class="inline">complex.erl</code>. |
| 139 | In·the·following·sections,·it·is·shown·how·this·module·can·be·implemented·using | 139 | In·the·following·sections,·it·is·shown·how·this·module·can·be·implemented·using |
| 140 | the·different·interoperability·mechanisms.</p> | 140 | the·different·interoperability·mechanisms.</p> |
| 141 | </div> | 141 | </div> |
| 142 | <div·class="bottom-actions"·id="bottom-actions"> | 142 | <div·class="bottom-actions"·id="bottom-actions"> |
| 143 | ··<div·class="bottom-actions-item"> | 143 | ··<div·class="bottom-actions-item"> |
| Offset 185, 15 lines modified | Offset 185, 15 lines modified | ||
| 185 | ······<p·class="built-using"> | 185 | ······<p·class="built-using"> |
| 186 | ········Built·using | 186 | ········Built·using |
| 187 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 187 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 188 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 188 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 189 | ······</p> | 189 | ······</p> |
| 190 | <p>Copyright·©·1996-202 | 190 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 191 | ····</footer> | 191 | ····</footer> |
| 192 | ··</div> | 192 | ··</div> |
| 193 | </main> | 193 | </main> |
| 194 | </div> | 194 | </div> |
| 195 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 195 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 196 | ··<script> | 196 | ··<script> |
| 197 | ··let·initialized·=·false; | 197 | ··let·initialized·=·false; |
| Offset 235, 15 lines modified | Offset 235, 15 lines modified | ||
| 235 | ······<p·class="built-using"> | 235 | ······<p·class="built-using"> |
| 236 | ········Built·using | 236 | ········Built·using |
| 237 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 237 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 238 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 238 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 239 | ······</p> | 239 | ······</p> |
| 240 | <p>Copyright·©·1996-202 | 240 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 241 | ····</footer> | 241 | ····</footer> |
| 242 | ··</div> | 242 | ··</div> |
| 243 | </main> | 243 | </main> |
| 244 | </div> | 244 | </div> |
| 245 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 245 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 246 | ··<script> | 246 | ··<script> |
| 247 | ··let·initialized·=·false; | 247 | ··let·initialized·=·false; |
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| 157 | ··<a·href="#example"·class="hover-link"> | 157 | ··<a·href="#example"·class="hover-link"> |
| 158 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 158 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 159 | ··</a> | 159 | ··</a> |
| 160 | ··<span·class="text">Example</span> | 160 | ··<span·class="text">Example</span> |
| 161 | </h2> | 161 | </h2> |
| 162 | <p>An·example·of·a·simple·server·written·in·plain·Erlang·is·provided·in | 162 | <p>An·example·of·a·simple·server·written·in·plain·Erlang·is·provided·in |
| 163 | <a·href="design_principles.html#ch1">Overview</a>.·The·server·can·be·reimplemented·using | 163 | <a·href="design_principles.html#ch1">Overview</a>.·The·server·can·be·reimplemented·using |
| 164 | <code·class="inline">gen_server</code>,·resulting·in·this·callback·module:</p><p><a·href=""·id="ex"></a></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 164 | <code·class="inline">gen_server</code>,·resulting·in·this·callback·module:</p><p><a·href=""·id="ex"></a></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="0717212559-1">(</span><span·class="ss">ch3</span><span·class="p"·data-group-id="0717212559-1">)</span><span·class="p">.</span><span·class="w"> |
| 165 | </span><span·class="p">-</span><span·class="na">behaviour</span><span·class="p"·data-group-id=" | 165 | </span><span·class="p">-</span><span·class="na">behaviour</span><span·class="p"·data-group-id="0717212559-2">(</span><span·class="ss">gen_server</span><span·class="p"·data-group-id="0717212559-2">)</span><span·class="p">.</span><span·class="w"> |
| 166 | </span><span·class="w"> | 166 | </span><span·class="w"> |
| 167 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 167 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="0717212559-3">(</span><span·class="p"·data-group-id="0717212559-4">[</span><span·class="ss">start_link</span><span·class="p">/</span><span·class="mi">0</span><span·class="p"·data-group-id="0717212559-4">]</span><span·class="p"·data-group-id="0717212559-3">)</span><span·class="p">.</span><span·class="w"> |
| 168 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 168 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="0717212559-5">(</span><span·class="p"·data-group-id="0717212559-6">[</span><span·class="ss">alloc</span><span·class="p">/</span><span·class="mi">0</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">free</span><span·class="p">/</span><sp[·...·truncated·by·diffoscope;·len:·116,·SHA:·66d309f2e95a45be868d17b4834a7cad5a3ddde5077d3521855c5812fb11e098·...·]-5">)</span><span·class="p">.</span><span·class="w"> |
| 169 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 169 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="0717212559-7">(</span><span·class="p"·data-group-id="0717212559-8">[</span><span·class="ss">init</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">handle_call</span><span·class="p">/</sp[·...·truncated·by·diffoscope;·len:·254,·SHA:·cf1cc1ed232f35e047de80da09d8cfd214bcb8979550c7d4836c0633dd821ce7·...·]-7">)</span><span·class="p">.</span><span·class="w"> |
| 170 | </span><span·class="nf">start_link</span><span·class="p"·data-group-id=" | 170 | </span><span·class="nf">start_link</span><span·class="p"·data-group-id="0717212559-9">(</span><span·class="p"·data-group-id="0717212559-9">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 171 | ····</span><span·class="nc">gen_server</span><span·class="p">:</span><span·class="nf">start_link</span><span·class="p"·data-group-id=" | 171 | ····</span><span·class="nc">gen_server</span><span·class="p">:</span><span·class="nf">start_link</span><span·class="p"·data-group-id="0717212559-10">(</span><span·class="p"·data-group-id="0717212559-11">{</span><span·class="ss">local</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">ch3</span><span·class="p"·data-group-id="0717212559-11">}</span><span·class="p">,</sp[·...·truncated·by·diffoscope;·len:·407,·SHA:·949176ada12e8ec01798a38a3cc654d0301dd01fe994b8c96f0181b806925e58·...·]-10">)</span><span·class="p">.</span><span·class="w"> |
| 172 | </span><span·class="nf">alloc</span><span·class="p"·data-group-id=" | 172 | </span><span·class="nf">alloc</span><span·class="p"·data-group-id="0717212559-14">(</span><span·class="p"·data-group-id="0717212559-14">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 173 | ····</span><span·class="nc">gen_server</span><span·class="p">:</span><span·class="nf">call</span><span·class="p"·data-group-id=" | 173 | ····</span><span·class="nc">gen_server</span><span·class="p">:</span><span·class="nf">call</span><span·class="p"·data-group-id="0717212559-15">(</span><span·class="ss">ch3</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">alloc</span><span·class="p"·data-group-id="0717212559-15">)</span><span·class="p">.</span><span·class="w"> |
| 174 | </span><span·class="nf">free</span><span·class="p"·data-group-id=" | 174 | </span><span·class="nf">free</span><span·class="p"·data-group-id="0717212559-16">(</span><span·class="n">Ch</span><span·class="p"·data-group-id="0717212559-16">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 175 | ····</span><span·class="nc">gen_server</span><span·class="p">:</span><span·class="nf">cast</span><span·class="p"·data-group-id=" | 175 | ····</span><span·class="nc">gen_server</span><span·class="p">:</span><span·class="nf">cast</span><span·class="p"·data-group-id="0717212559-17">(</span><span·class="ss">ch3</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0717212559-18">{</span><span·class="ss">free</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Ch</span><sp[·...·truncated·by·diffoscope;·len:·92,·SHA:·67a25569702817ebabc684b6cf58eb56ba2e2e89863874634f80359d59f98bf7·...·]-17">)</span><span·class="p">.</span><span·class="w"> |
| 176 | </span><span·class="nf">init</span><span·class="p"·data-group-id=" | 176 | </span><span·class="nf">init</span><span·class="p"·data-group-id="0717212559-19">(</span><span·class="p">_</span><span·class="n">Args</span><span·class="p"·data-group-id="0717212559-19">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 177 | ····</span><span·class="p"·data-group-id=" | 177 | ····</span><span·class="p"·data-group-id="0717212559-20">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">channels</span><span·class="p"·data-group-id="0717212559-21">(</span><span·class="p"·data-group-id="0717212559-21">)</span><span·class="p"·dat[·...·truncated·by·diffoscope;·len:·22,·SHA:·fe8095f90f96faf0173a6b9fa0abe9e8b5e69b7712def90e914b7d1196988e37·...·]-20">}</span><span·class="p">.</span><span·class="w"> |
| 178 | </span><span·class="nf">handle_call</span><span·class="p"·data-group-id=" | 178 | </span><span·class="nf">handle_call</span><span·class="p"·data-group-id="0717212559-22">(</span><span·class="ss">alloc</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="n">From</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Chs</span><span·class="p"·data-group-id="[·...·truncated·by·diffoscope;·len:·10,·SHA:·24966a9a731967614181d812abcb6922cdde95cd62dd064ba5d0cafea63e3f0a·...·]-22">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 179 | ····</span><span·class="p"·data-group-id=" | 179 | ····</span><span·class="p"·data-group-id="0717212559-23">{</span><span·class="n">Ch</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Chs2</span><span·class="p"·data-group-id="0717212559-23">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·c[·...·truncated·by·diffoscope;·len:·143,·SHA:·5602f845a9749be231b0095420c053bd07dfdd957afa6db3012c76cd024b3206·...·]-24">)</span><span·class="p">,</span><span·class="w"> |
| 180 | ····</span><span·class="p"·data-group-id=" | 180 | ····</span><span·class="p"·data-group-id="0717212559-25">{</span><span·class="ss">reply</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Ch</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Chs2</span><span·class="p"·data-group-id="0717212559-25">}</span><span·class="p">.</span><span·class="w"> |
| 181 | </span><span·class="nf">handle_cast</span><span·class="p"·data-group-id=" | 181 | </span><span·class="nf">handle_cast</span><span·class="p"·data-group-id="0717212559-26">(</span><span·class="p"·data-group-id="0717212559-27">{</span><span·class="ss">free</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Ch</span><span·class="p"·data-group-id="0717212559-27">}</span><span·class="p">,</span>[·...·truncated·by·diffoscope;·len:·91,·SHA:·7787dd1e74706195f91683c2575c45e65b5ef89de84ed82893d92f28c26954c9·...·]-26">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 182 | ····</span><span·class="n">Chs2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">free</span><span·class="p"·data-group-id=" | 182 | ····</span><span·class="n">Chs2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">free</span><span·class="p"·data-group-id="0717212559-28">(</span><span·class="n">Ch</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Chs</span><span·class="p"·data-group-id="0717212559-28">)</span><span·class="p">,</span><span·class="w"> |
| 183 | ····</span><span·class="p"·data-group-id=" | 183 | ····</span><span·class="p"·data-group-id="0717212559-29">{</span><span·class="ss">noreply</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Chs2</span><span·class="p"·data-group-id="0717212559-29">}</span><span·class="p">.</span></code></pre><p>The·code·is·explained·in·the·next·sections.</p><h2·id="starting-a-gen_server"·class="section-heading"> |
| 184 | ··<a·href="#starting-a-gen_server"·class="hover-link"> | 184 | ··<a·href="#starting-a-gen_server"·class="hover-link"> |
| 185 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 185 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 186 | ··</a> | 186 | ··</a> |
| 187 | ··<span·class="text">Starting·a·Gen_Server</span> | 187 | ··<span·class="text">Starting·a·Gen_Server</span> |
| 188 | </h2> | 188 | </h2> |
| 189 | <p>In·the·example·in·the·previous·section,·<code·class="inline">gen_server</code>·is·started·by·calling | 189 | <p>In·the·example·in·the·previous·section,·<code·class="inline">gen_server</code>·is·started·by·calling |
| 190 | <code·class="inline">ch3:start_link()</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">start_link</span><span·class="p"·data-group-id=" | 190 | <code·class="inline">ch3:start_link()</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">start_link</span><span·class="p"·data-group-id="5455475099-1">(</span><span·class="p"·data-group-id="5455475099-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 191 | ····</span><span·class="nc">gen_server</span><span·class="p">:</span><span·class="nf">start_link</span><span·class="p"·data-group-id=" | 191 | ····</span><span·class="nc">gen_server</span><span·class="p">:</span><span·class="nf">start_link</span><span·class="p"·data-group-id="5455475099-2">(</span><span·class="p"·data-group-id="5455475099-3">{</span><span·class="ss">local</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">ch3</span><span·class="p"·data-group-id="5455475099-3">}</span><span·class="p">,</span>[·...·truncated·by·diffoscope;·len:·682,·SHA:·929a6ec3eec2cfd00633642788d260c664a5aa3b1646289a1e79dc817492b4c6·...·]-6">}</span></code></pre><p><code·class="inline">start_link/0</code>·calls·function·<a·href="../../lib/stdlib-7.0/doc/html/gen_server.html#start_link/4"><code·class="inline">gen_server:start_link/4</code></a>.··This·function |
| 192 | spawns·and·links·to·a·new·process,·a·<code·class="inline">gen_server</code>.</p><ul><li><p>The·first·argument,·<code·class="inline">{local,·ch3}</code>,·specifies·the·name. | 192 | spawns·and·links·to·a·new·process,·a·<code·class="inline">gen_server</code>.</p><ul><li><p>The·first·argument,·<code·class="inline">{local,·ch3}</code>,·specifies·the·name. |
| 193 | The·gen_server·is·then·locally·registered·as·<code·class="inline">ch3</code>.</p><p>If·the·name·is·omitted,·the·<code·class="inline">gen_server</code>·is·not·registered.·Instead·its·pid | 193 | The·gen_server·is·then·locally·registered·as·<code·class="inline">ch3</code>.</p><p>If·the·name·is·omitted,·the·<code·class="inline">gen_server</code>·is·not·registered.·Instead·its·pid |
| 194 | must·be·used.·The·name·can·also·be·given·as·<code·class="inline">{global,·Name}</code>,·in·which·case | 194 | must·be·used.·The·name·can·also·be·given·as·<code·class="inline">{global,·Name}</code>,·in·which·case |
| 195 | the·<code·class="inline">gen_server</code>·is·registered·using·<a·href="../../lib/kernel-10.3/doc/html/global.html#register_name/2"><code·class="inline">global:register_name/2</code></a>.</p></li><li><p>The·second·argument,·<code·class="inline">ch3</code>,·is·the·name·of·the·callback·module,·which·is | 195 | the·<code·class="inline">gen_server</code>·is·registered·using·<a·href="../../lib/kernel-10.3/doc/html/global.html#register_name/2"><code·class="inline">global:register_name/2</code></a>.</p></li><li><p>The·second·argument,·<code·class="inline">ch3</code>,·is·the·name·of·the·callback·module,·which·is |
| 196 | the·module·where·the·callback·functions·are·located.</p><p>The·interface·functions·(<code·class="inline">start_link/0</code>,·<code·class="inline">alloc/0</code>,·and·<code·class="inline">free/1</code>)·are·located | 196 | the·module·where·the·callback·functions·are·located.</p><p>The·interface·functions·(<code·class="inline">start_link/0</code>,·<code·class="inline">alloc/0</code>,·and·<code·class="inline">free/1</code>)·are·located |
| 197 | in·the·same·module·as·the·callback·functions·(<code·class="inline">init/1</code>,·<code·class="inline">handle_call/3</code>,·and | 197 | in·the·same·module·as·the·callback·functions·(<code·class="inline">init/1</code>,·<code·class="inline">handle_call/3</code>,·and |
| 198 | <code·class="inline">handle_cast/2</code>).·It·is·usually·good·programming·practice·to·have·the·code | 198 | <code·class="inline">handle_cast/2</code>).·It·is·usually·good·programming·practice·to·have·the·code |
| 199 | corresponding·to·one·process·contained·in·a·single·module.</p></li><li><p>The·third·argument,·<code·class="inline">[]</code>,·is·a·term·that·is·passed·as·is·to·the·callback | 199 | corresponding·to·one·process·contained·in·a·single·module.</p></li><li><p>The·third·argument,·<code·class="inline">[]</code>,·is·a·term·that·is·passed·as·is·to·the·callback |
| 200 | function·<code·class="inline">init</code>.·Here,·<code·class="inline">init</code>·does·not·need·any·indata·and·ignores·the | 200 | function·<code·class="inline">init</code>.·Here,·<code·class="inline">init</code>·does·not·need·any·indata·and·ignores·the |
| 201 | argument.</p></li><li><p>The·fourth·argument,·<code·class="inline">[]</code>,·is·a·list·of·options.·See·<a·href="../../lib/stdlib-7.0/doc/html/gen_server.html"><code·class="inline">gen_server</code></a> | 201 | argument.</p></li><li><p>The·fourth·argument,·<code·class="inline">[]</code>,·is·a·list·of·options.·See·<a·href="../../lib/stdlib-7.0/doc/html/gen_server.html"><code·class="inline">gen_server</code></a> |
| 202 | for·the·available·options.</p></li></ul><p>If·name·registration·succeeds,·the·new·<code·class="inline">gen_server</code>·process·calls·the·callback | 202 | for·the·available·options.</p></li></ul><p>If·name·registration·succeeds,·the·new·<code·class="inline">gen_server</code>·process·calls·the·callback |
| 203 | function·<code·class="inline">ch3:init([])</code>.·<code·class="inline">init</code>·is·expected·to·return·<code·class="inline">{ok,·State}</code>,·where | 203 | function·<code·class="inline">ch3:init([])</code>.·<code·class="inline">init</code>·is·expected·to·return·<code·class="inline">{ok,·State}</code>,·where |
| 204 | <code·class="inline">State</code>·is·the·internal·state·of·the·<code·class="inline">gen_server</code>.·In·this·case,·the·state·is | 204 | <code·class="inline">State</code>·is·the·internal·state·of·the·<code·class="inline">gen_server</code>.·In·this·case,·the·state·is |
| 205 | the·available·channels.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">init</span><span·class="p"·data-group-id=" | 205 | the·available·channels.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">init</span><span·class="p"·data-group-id="5747391047-1">(</span><span·class="p">_</span><span·class="n">Args</span><span·class="p"·data-group-id="5747391047-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 206 | ····</span><span·class="p"·data-group-id=" | 206 | ····</span><span·class="p"·data-group-id="5747391047-2">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">channels</span><span·class="p"·data-group-id="5747391047-3">(</span><span·class="p"·data-group-id="5747391047-3">)</span><span·class="p"·data-g[·...·truncated·by·diffoscope;·len:·19,·SHA:·37099c0ed868b5599cfb9e8ff7b247e708fe46a22d60b826fe85202ff2649878·...·]-2">}</span><span·class="p">.</span></code></pre><p><a·href="../../lib/stdlib-7.0/doc/html/gen_server.html#start_link/4"><code·class="inline">gen_server:start_link/4</code></a>·is·synchronous.·It·does·not·return·until·the |
| 207 | <code·class="inline">gen_server</code>·has·been·initialized·and·is·ready·to·receive·requests.</p><p><a·href="../../lib/stdlib-7.0/doc/html/gen_server.html#start_link/4"><code·class="inline">gen_server:start_link/4</code></a>·must·be·used·if·the·<code·class="inline">gen_server</code>·is·part·of | 207 | <code·class="inline">gen_server</code>·has·been·initialized·and·is·ready·to·receive·requests.</p><p><a·href="../../lib/stdlib-7.0/doc/html/gen_server.html#start_link/4"><code·class="inline">gen_server:start_link/4</code></a>·must·be·used·if·the·<code·class="inline">gen_server</code>·is·part·of |
| 208 | a·supervision·tree,·meaning·that·it·was·started·by·a·supervisor.·There | 208 | a·supervision·tree,·meaning·that·it·was·started·by·a·supervisor.·There |
| 209 | is·another·function,·<a·href="../../lib/stdlib-7.0/doc/html/gen_server.html#start/4"><code·class="inline">gen_server:start/4</code></a>,·to·start·a·standalone | 209 | is·another·function,·<a·href="../../lib/stdlib-7.0/doc/html/gen_server.html#start/4"><code·class="inline">gen_server:start/4</code></a>,·to·start·a·standalone |
| 210 | <code·class="inline">gen_server</code>·that·is·not·part·of·a·supervision·tree.</p><h2·id="synchronous-requests-call"·class="section-heading"> | 210 | <code·class="inline">gen_server</code>·that·is·not·part·of·a·supervision·tree.</p><h2·id="synchronous-requests-call"·class="section-heading"> |
| 211 | ··<a·href="#synchronous-requests-call"·class="hover-link"> | 211 | ··<a·href="#synchronous-requests-call"·class="hover-link"> |
| 212 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 212 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 213 | ··</a> | 213 | ··</a> |
| Offset 221, 32 lines modified | Offset 221, 32 lines modified | ||
| 221 | </h2> | 221 | </h2> |
| 222 | <p>The·synchronous·request·<code·class="inline">alloc()</code>·is·implemented·using·<a·href="../../lib/stdlib-7.0/doc/html/gen_server.html#call/2"><code·class="inline">gen_server:call/2</code></a>:</p><pre><code·class="text">alloc()·-> | 222 | <p>The·synchronous·request·<code·class="inline">alloc()</code>·is·implemented·using·<a·href="../../lib/stdlib-7.0/doc/html/gen_server.html#call/2"><code·class="inline">gen_server:call/2</code></a>:</p><pre><code·class="text">alloc()·-> |
| 223 | ····gen_server:call(ch3,·alloc).</code></pre><p><code·class="inline">ch3</code>·is·the·name·of·the·<code·class="inline">gen_server</code>·and·must·agree·with·the·name | 223 | ····gen_server:call(ch3,·alloc).</code></pre><p><code·class="inline">ch3</code>·is·the·name·of·the·<code·class="inline">gen_server</code>·and·must·agree·with·the·name |
| 224 | used·to·start·it.·<code·class="inline">alloc</code>·is·the·actual·request.</p><p>The·request·is·made·into·a·message·and·sent·to·the·<code·class="inline">gen_server</code>. | 224 | used·to·start·it.·<code·class="inline">alloc</code>·is·the·actual·request.</p><p>The·request·is·made·into·a·message·and·sent·to·the·<code·class="inline">gen_server</code>. |
| 225 | When·the·request·is·received,·the·<code·class="inline">gen_server</code>·calls | 225 | When·the·request·is·received,·the·<code·class="inline">gen_server</code>·calls |
| 226 | <code·class="inline">handle_call(Request,·From,·State)</code>,·which·is·expected·to·return | 226 | <code·class="inline">handle_call(Request,·From,·State)</code>,·which·is·expected·to·return |
| 227 | a·tuple·<code·class="inline">{reply,Reply,State1}</code>.·<code·class="inline">Reply</code>·is·the·reply·that·is·to·be·sent·back | 227 | a·tuple·<code·class="inline">{reply,Reply,State1}</code>.·<code·class="inline">Reply</code>·is·the·reply·that·is·to·be·sent·back |
| 228 | to·the·client,·and·<code·class="inline">State1</code>·is·a·new·value·for·the·state·of·the·<code·class="inline">gen_server</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">handle_call</span><span·class="p"·data-group-id=" | 228 | to·the·client,·and·<code·class="inline">State1</code>·is·a·new·value·for·the·state·of·the·<code·class="inline">gen_server</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">handle_call</span><span·class="p"·data-group-id="3003018666-1">(</span><span·class="ss">alloc</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="n">From</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Chs</span><span·class="p"·data-group-id="3[·...·truncated·by·diffoscope;·len:·9,·SHA:·fb7a85c8dd27a264bf1b814a260ee2a0d6d2b1c66bbb72c497864a6f02285d14·...·]-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 229 | ····</span><span·class="p"·data-group-id=" | 229 | ····</span><span·class="p"·data-group-id="3003018666-2">{</span><span·class="n">Ch</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Chs2</span><span·class="p"·data-group-id="3003018666-2">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·cla[·...·truncated·by·diffoscope;·len:·140,·SHA:·7e5867204fd4a96497750870c2403904fa2b9781d0fadd3cc5e62eb7fcc1f31a·...·]-3">)</span><span·class="p">,</span><span·class="w"> |
| 230 | ····</span><span·class="p"·data-group-id=" | 230 | ····</span><span·class="p"·data-group-id="3003018666-4">{</span><span·class="ss">reply</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Ch</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Chs2</span><span·class="p"·data-group-id="3003018666-4">}</span><span·class="p">.</span></code></pre><p>In·this·case,·the·reply·is·the·allocated·channel·<code·class="inline">Ch</code>·and·the·new·state·is·the |
| 231 | set·of·remaining·available·channels·<code·class="inline">Chs2</code>.</p><p>Thus,·the·call·<code·class="inline">ch3:alloc()</code>·returns·the·allocated·channel·<code·class="inline">Ch</code>·and·the | 231 | set·of·remaining·available·channels·<code·class="inline">Chs2</code>.</p><p>Thus,·the·call·<code·class="inline">ch3:alloc()</code>·returns·the·allocated·channel·<code·class="inline">Ch</code>·and·the |
| 232 | <code·class="inline">gen_server</code>·then·waits·for·new·requests,·now·with·an·updated·list·of | 232 | <code·class="inline">gen_server</code>·then·waits·for·new·requests,·now·with·an·updated·list·of |
| 233 | available·channels.</p><h2·id="asynchronous-requests-cast"·class="section-heading"> | 233 | available·channels.</p><h2·id="asynchronous-requests-cast"·class="section-heading"> |
| 234 | ··<a·href="#asynchronous-requests-cast"·class="hover-link"> | 234 | ··<a·href="#asynchronous-requests-cast"·class="hover-link"> |
| 235 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 235 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 236 | ··</a> | 236 | ··</a> |
| 237 | ··<span·class="text">Asynchronous·Requests·-·Cast</span> | 237 | ··<span·class="text">Asynchronous·Requests·-·Cast</span> |
| 238 | </h2> | 238 | </h2> |
| 239 | <p>The·asynchronous·request·<code·class="inline">free(Ch)</code>·is·implemented·using·<a·href="../../lib/stdlib-7.0/doc/html/gen_server.html#cast/2"><code·class="inline">gen_server:cast/2</code></a>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">free</span><span·class="p"·data-group-id=" | 239 | <p>The·asynchronous·request·<code·class="inline">free(Ch)</code>·is·implemented·using·<a·href="../../lib/stdlib-7.0/doc/html/gen_server.html#cast/2"><code·class="inline">gen_server:cast/2</code></a>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">free</span><span·class="p"·data-group-id="3780539541-1">(</span><span·class="n">Ch</span><span·class="p"·data-group-id="3780539541-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 240 | ····</span><span·class="nc">gen_server</span><span·class="p">:</span><span·class="nf">cast</span><span·class="p"·data-group-id=" | 240 | ····</span><span·class="nc">gen_server</span><span·class="p">:</span><span·class="nf">cast</span><span·class="p"·data-group-id="3780539541-2">(</span><span·class="ss">ch3</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3780539541-3">{</span><span·class="ss">free</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Ch</span><span[·...·truncated·by·diffoscope;·len:·88,·SHA:·ce9e2fd6c74429dc9e7f08c283ac92b98a08155523ab1cde9494a5bcda09bb97·...·]1-2">)</span><span·class="p">.</span></code></pre><p><code·class="inline">ch3</code>·is·the·name·of·the·<code·class="inline">gen_server</code>.·<code·class="inline">{free,·Ch}</code>·is·the·actual·request.</p><p>The·request·is·made·into·a·message·and·sent·to·the·<code·class="inline">gen_server</code>. |
| 241 | <code·class="inline">cast</code>,·and·thus·<code·class="inline">free</code>,·then·returns·<code·class="inline">ok</code>.</p><p>When·the·request·is·received,·the·<code·class="inline">gen_server</code>·calls | 241 | <code·class="inline">cast</code>,·and·thus·<code·class="inline">free</code>,·then·returns·<code·class="inline">ok</code>.</p><p>When·the·request·is·received,·the·<code·class="inline">gen_server</code>·calls |
| 242 | <code·class="inline">handle_cast(Request,·State)</code>,·which·is·expected·to·return·a·tuple | 242 | <code·class="inline">handle_cast(Request,·State)</code>,·which·is·expected·to·return·a·tuple |
| 243 | <code·class="inline">{noreply,State1}</code>.·<code·class="inline">State1</code>·is·a·new·value·for·the·state·of·the·<code·class="inline">gen_server</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">handle_cast</span><span·class="p"·data-group-id="7 | 243 | <code·class="inline">{noreply,State1}</code>.·<code·class="inline">State1</code>·is·a·new·value·for·the·state·of·the·<code·class="inline">gen_server</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">handle_cast</span><span·class="p"·data-group-id="7040775869-1">(</span><span·class="p"·data-group-id="7040775869-2">{</span><span·class="ss">free</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Ch</span><span·class="p"·data-group-id="7040775869-2">}</span><span·class="p">,</span><spa[·...·truncated·by·diffoscope;·len:·87,·SHA:·ba14148dce34fba18a6bd417d14f6831b4c19b4665378067070dc95f2c6336b6·...·]-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 244 | ····</span><span·class="n">Chs2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">free</span><span·class="p"·data-group-id="7 | 244 | ····</span><span·class="n">Chs2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">free</span><span·class="p"·data-group-id="7040775869-3">(</span><span·class="n">Ch</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Chs</span><span·class="p"·data-group-id="7040775869-3">)</span><span·class="p">,</span><span·class="w"> |
| 245 | ····</span><span·class="p"·data-group-id="7 | 245 | ····</span><span·class="p"·data-group-id="7040775869-4">{</span><span·class="ss">noreply</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Chs2</span><span·class="p"·data-group-id="7040775869-4">}</span><span·class="p">.</span></code></pre><p>In·this·case,·the·new·state·is·the·updated·list·of·available·channels·<code·class="inline">Chs2</code>. |
| 246 | The·<code·class="inline">gen_server</code>·is·now·ready·for·new·requests.</p><h2·id="stopping"·class="section-heading"> | 246 | The·<code·class="inline">gen_server</code>·is·now·ready·for·new·requests.</p><h2·id="stopping"·class="section-heading"> |
| 247 | ··<a·href="#stopping"·class="hover-link"> | 247 | ··<a·href="#stopping"·class="hover-link"> |
| 248 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 248 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 249 | ··</a> | 249 | ··</a> |
| 250 | ··<span·class="text">Stopping</span> | 250 | ··<span·class="text">Stopping</span> |
| 251 | </h2> | 251 | </h2> |
| 252 | <h3·id="in-a-supervision-tree"·class="section-heading"> | 252 | <h3·id="in-a-supervision-tree"·class="section-heading"> |
| Offset 257, 69 lines modified | Offset 257, 69 lines modified | ||
| 257 | </h3> | 257 | </h3> |
| 258 | <p>If·the·<code·class="inline">gen_server</code>·is·part·of·a·supervision·tree,·no·stop·function·is·needed. | 258 | <p>If·the·<code·class="inline">gen_server</code>·is·part·of·a·supervision·tree,·no·stop·function·is·needed. |
| 259 | The·<code·class="inline">gen_server</code>·is·automatically·terminated·by·its·supervisor.··Exactly·how | 259 | The·<code·class="inline">gen_server</code>·is·automatically·terminated·by·its·supervisor.··Exactly·how |
| 260 | this·is·done·is·defined·by·a·<a·href="sup_princ.html#shutdown">shutdown·strategy</a> | 260 | this·is·done·is·defined·by·a·<a·href="sup_princ.html#shutdown">shutdown·strategy</a> |
| 261 | set·in·the·supervisor.</p><p>If·it·is·necessary·to·clean·up·before·termination,·the·shutdown·strategy | 261 | set·in·the·supervisor.</p><p>If·it·is·necessary·to·clean·up·before·termination,·the·shutdown·strategy |
| 262 | must·be·a·time-out·value·and·the·<code·class="inline">gen_server</code>·must·be·set·to·trap·exit·signals | 262 | must·be·a·time-out·value·and·the·<code·class="inline">gen_server</code>·must·be·set·to·trap·exit·signals |
| 263 | in·function·<code·class="inline">init</code>.·When·ordered·to·shutdown,·the·<code·class="inline">gen_server</code>·then·calls | 263 | in·function·<code·class="inline">init</code>.·When·ordered·to·shutdown,·the·<code·class="inline">gen_server</code>·then·calls |
| 264 | the·callback·function·<code·class="inline">terminate(shutdown,·State)</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">init</span><span·class="p"·data-group-id=" | 264 | the·callback·function·<code·class="inline">terminate(shutdown,·State)</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">init</span><span·class="p"·data-group-id="8032538601-1">(</span><span·class="n">Args</span><span·class="p"·data-group-id="8032538601-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 265 | ····</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p">,</span><span·class="w"> | 265 | ····</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p">,</span><span·class="w"> |
| 266 | ····</span><span·class="nf">process_flag</span><span·class="p"·data-group-id=" | 266 | ····</span><span·class="nf">process_flag</span><span·class="p"·data-group-id="8032538601-2">(</span><span·class="ss">trap_exit</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">true</span><span·class="p"·data-group-id="8032538601-2">)</span><span·class="p">,</span><span·class="w"> |
| 267 | ····</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p">,</span><span·class="w"> | 267 | ····</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p">,</span><span·class="w"> |
| 268 | ····</span><span·class="p"·data-group-id=" | 268 | ····</span><span·class="p"·data-group-id="8032538601-3">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">State</span><span·class="p"·data-group-id="8032538601-3">}</span><span·class="p">.</span><span·class="w"> |
| 269 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> | 269 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> |
| 270 | </span><span·class="nf">terminate</span><span·class="p"·data-group-id=" | 270 | </span><span·class="nf">terminate</span><span·class="p"·data-group-id="8032538601-4">(</span><span·class="ss">shutdown</span><span·class="p">,</span><span·class="w">·</span><span·class="n">State</span><span·class="p"·data-group-id="8032538601-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 271 | ····</span><span·class="c1">%%·Code·for·cleaning·up·here</span><span·class="w"> | 271 | ····</span><span·class="c1">%%·Code·for·cleaning·up·here</span><span·class="w"> |
| 272 | ····</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> | 272 | ····</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> |
| 273 | ····</span><span·class="ss">ok</span><span·class="p">.</span></code></pre><h3·id="standalone-gen_servers"·class="section-heading"> | 273 | ····</span><span·class="ss">ok</span><span·class="p">.</span></code></pre><h3·id="standalone-gen_servers"·class="section-heading"> |
| 274 | ··<a·href="#standalone-gen_servers"·class="hover-link"> | 274 | ··<a·href="#standalone-gen_servers"·class="hover-link"> |
| 275 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 275 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 276 | ··</a> | 276 | ··</a> |
| 277 | ··<span·class="text">Standalone·Gen_Servers</span> | 277 | ··<span·class="text">Standalone·Gen_Servers</span> |
| 278 | </h3> | 278 | </h3> |
| 279 | <p>If·the·<code·class="inline">gen_server</code>·is·not·part·of·a·supervision·tree,·a·stop·function | 279 | <p>If·the·<code·class="inline">gen_server</code>·is·not·part·of·a·supervision·tree,·a·stop·function |
| 280 | can·be·useful,·for·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> | 280 | can·be·useful,·for·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> |
| 281 | </span><span·class="nf">export</span><span·class="p"·data-group-id=" | 281 | </span><span·class="nf">export</span><span·class="p"·data-group-id="2205521117-1">(</span><span·class="p"·data-group-id="2205521117-2">[</span><span·class="ss">stop</span><span·class="p">/</span><span·class="mi">0</span><span·class="p"·data-group-id="2205521117-2">]</span><span·class="p"·data-group-id="2205521117-1">)</span><span·class="p">.</span><span·class="w"> |
| 282 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> | 282 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> |
| 283 | </span><span·class="nf">stop</span><span·class="p"·data-group-id=" | 283 | </span><span·class="nf">stop</span><span·class="p"·data-group-id="2205521117-3">(</span><span·class="p"·data-group-id="2205521117-3">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
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| 181 | ······<p·class="built-using"> | 181 | ······<p·class="built-using"> |
| 182 | ········Built·using | 182 | ········Built·using |
| 183 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 183 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 184 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 184 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 185 | ······</p> | 185 | ······</p> |
| 186 | <p>Copyright·©·1996-202 | 186 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 187 | ····</footer> | 187 | ····</footer> |
| 188 | ··</div> | 188 | ··</div> |
| 189 | </main> | 189 | </main> |
| 190 | </div> | 190 | </div> |
| 191 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 191 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 192 | ··<script> | 192 | ··<script> |
| 193 | ··let·initialized·=·false; | 193 | ··let·initialized·=·false; |
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| 161 | belonging·to·the·primary·application.</p><h2·id="specifying-included-applications"·class="section-heading"> | 161 | belonging·to·the·primary·application.</p><h2·id="specifying-included-applications"·class="section-heading"> |
| 162 | ··<a·href="#specifying-included-applications"·class="hover-link"> | 162 | ··<a·href="#specifying-included-applications"·class="hover-link"> |
| 163 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 163 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 164 | ··</a> | 164 | ··</a> |
| 165 | ··<span·class="text">Specifying·Included·Applications</span> | 165 | ··<span·class="text">Specifying·Included·Applications</span> |
| 166 | </h2> | 166 | </h2> |
| 167 | <p>Which·applications·to·include·is·defined·by·the·<code·class="inline">included_applications</code>·key·in | 167 | <p>Which·applications·to·include·is·defined·by·the·<code·class="inline">included_applications</code>·key·in |
| 168 | the·<code·class="inline">.app</code>·file:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="9 | 168 | the·<code·class="inline">.app</code>·file:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="9423606681-1">{</span><span·class="ss">application</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">prim_app</span><span·class="p">,</span><span·class="w"> |
| 169 | ·</span><span·class="p"·data-group-id="9 | 169 | ·</span><span·class="p"·data-group-id="9423606681-2">[</span><span·class="p"·data-group-id="9423606681-3">{</span><span·class="ss">description</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"Tree·application"</span><span·class="p"·data-group-id="9423606681-3">}</span><span·class="p">,</span><span·class="w"> |
| 170 | ··</span><span·class="p"·data-group-id="9 | 170 | ··</span><span·class="p"·data-group-id="9423606681-4">{</span><span·class="ss">vsn</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"1"</span><span·class="p"·data-group-id="9423606681-4">}</span><span·class="p">,</span><span·class="w"> |
| 171 | ··</span><span·class="p"·data-group-id="9 | 171 | ··</span><span·class="p"·data-group-id="9423606681-5">{</span><span·class="ss">modules</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9423606681-6">[</span><span·class="ss">prim_app_cb</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">pri[·...·truncated·by·diffoscope;·len:·197,·SHA:·09ef5a85ec05c597fafb784f7306a7f9e8738b9fd583af2eeaf500df4984c365·...·]-5">}</span><span·class="p">,</span><span·class="w"> |
| 172 | ··</span><span·class="p"·data-group-id="9 | 172 | ··</span><span·class="p"·data-group-id="9423606681-7">{</span><span·class="ss">registered</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9423606681-8">[</span><span·class="ss">prim_app_server</span><span·class="p"·data-group-id="9423606681-8">]</span><span·cl[·...·truncated·by·diffoscope;·len:·33,·SHA:·034027525474b1102e2a0f5bbab4ac19a870ba0ac39425ee3596750d55320c1b·...·]-7">}</span><span·class="p">,</span><span·class="w"> |
| 173 | ··</span><span·class="p"·data-group-id="9 | 173 | ··</span><span·class="p"·data-group-id="9423606681-9">{</span><span·class="ss">included_applications</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9423606681-10">[</span><span·class="ss">incl_app</span><span·class="p"·data-group-id="9423606681-10">]</span><s[·...·truncated·by·diffoscope;·len:·39,·SHA:·f27c88db6f8ddc263adf5ca401a107e3727bea91d930e4ed2207b0d2bf786364·...·]-9">}</span><span·class="p">,</span><span·class="w"> |
| 174 | ··</span><span·class="p"·data-group-id="9 | 174 | ··</span><span·class="p"·data-group-id="9423606681-11">{</span><span·class="ss">applications</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9423606681-12">[</span><span·class="ss">kernel</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">s[·...·truncated·by·diffoscope;·len:·183,·SHA:·380999ce4da2e8f0eabd8f7135f478055b51ac4c660632618198c1be38ebcd8e·...·]-11">}</span><span·class="p">,</span><span·class="w"> |
| 175 | ··</span><span·class="p"·data-group-id="9056648277-13">{</span><span·class="ss">mod</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9056648277-14">{</span><span·class="ss">prim_app_cb</span><span·class="p">,</span><span·class="p"·data-group-id="9056648277-15">[</span><span·class="p"·data-group-id="9056648277-15">]</span><span·class="p"·data-group-id="9056648277-14">}</span><span·class="p"·data-group-id="9056648277-13">}</span><span·class="p">,</span><span·class="w"> | ||
| 176 | ··</span><span·class="p"·data-group-id="9056648277-16">{</span><span·class="ss">env</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9056648277-17">[</span><span·class="p"·data-group-id="9056648277-18">{</span><span·class="ss">file</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"/usr/local/log"</span><span·class="p"·data-group-id="9056648277-18">}</span><span·class="p"·data-group-id="9056648277-17">]</span><span·class="p"·data-group-id="9056648277-16">}</span><span·class="w"> | ||
| 177 | ·</span><span·class="p"·data-group-id="9 | 175 | ··</span><span·class="p"·data-group-id="9423606681-13">{</span><span·class="ss">mod</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9423606681-14">{</span><span·class="ss">prim_app_cb</span><span·class="p">,</span><span·[·...·truncated·by·diffoscope;·len:·248,·SHA:·db457f01bd2138fef4ff1fee338c50c87a1dde6e402acbef4cea8e98efbc6e15·...·]"> |
| 176 | ··</span><span·class="p"·data-group-id="9423606681-16">{</span><span·class="ss">env</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9423606681-17">[</span><span·class="p"·data-group-id="9423606681-18">{</span><span·class="ss">file</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"/usr/local/log"</span><span·class="p"·data-group-id="9423606681-18">}</span><span·class="p"·data-group-id="9423606681-17">]</span><span·class="p"·data-group-id="9423606681-16">}</span><span·class="w"> | ||
| 177 | ·</span><span·class="p"·data-group-id="9423606681-2">]</span><span·class="p"·data-group-id="9423606681-1">}</span><span·class="p">.</span></code></pre><h2·id="synchronizing-processes-during-startup"·class="section-heading"> | ||
| 178 | ··<a·href="#synchronizing-processes-during-startup"·class="hover-link"> | 178 | ··<a·href="#synchronizing-processes-during-startup"·class="hover-link"> |
| 179 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 179 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 180 | ··</a> | 180 | ··</a> |
| 181 | ··<span·class="text">Synchronizing·Processes·during·Startup</span> | 181 | ··<span·class="text">Synchronizing·Processes·during·Startup</span> |
| 182 | </h2> | 182 | </h2> |
| 183 | <p>The·supervisor·tree·of·an·included·application·is·started·as·part·of·the | 183 | <p>The·supervisor·tree·of·an·included·application·is·started·as·part·of·the |
| 184 | supervisor·tree·of·the·including·application.·If·there·is·a·need·for | 184 | supervisor·tree·of·the·including·application.·If·there·is·a·need·for |
| 185 | synchronization·between·processes·in·the·including·and·included·applications, | 185 | synchronization·between·processes·in·the·including·and·included·applications, |
| 186 | this·can·be·achieved·by·using·<em>start·phases</em>.</p><p>Start·phases·are·defined·by·the·<code·class="inline">start_phases</code>·key·in·the·<code·class="inline">.app</code>·file·as·a·list | 186 | this·can·be·achieved·by·using·<em>start·phases</em>.</p><p>Start·phases·are·defined·by·the·<code·class="inline">start_phases</code>·key·in·the·<code·class="inline">.app</code>·file·as·a·list |
| 187 | of·tuples·<code·class="inline">{Phase,PhaseArgs}</code>,·where·<code·class="inline">Phase</code>·is·an·atom·and·<code·class="inline">PhaseArgs</code>·is·a | 187 | of·tuples·<code·class="inline">{Phase,PhaseArgs}</code>,·where·<code·class="inline">Phase</code>·is·an·atom·and·<code·class="inline">PhaseArgs</code>·is·a |
| 188 | term.</p><p>The·value·of·the·<code·class="inline">mod</code>·key·of·the·including·application·must·be·set·to | 188 | term.</p><p>The·value·of·the·<code·class="inline">mod</code>·key·of·the·including·application·must·be·set·to |
| 189 | <code·class="inline">{application_starter,[Module,StartArgs]}</code>,·where·<code·class="inline">Module</code>·as·usual·is·the | 189 | <code·class="inline">{application_starter,[Module,StartArgs]}</code>,·where·<code·class="inline">Module</code>·as·usual·is·the |
| 190 | application·callback·module.·<code·class="inline">StartArgs</code>·is·a·term·provided·as·argument·to·the | 190 | application·callback·module.·<code·class="inline">StartArgs</code>·is·a·term·provided·as·argument·to·the |
| 191 | callback·function·<code·class="inline">Module:start/2</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 191 | callback·function·<code·class="inline">Module:start/2</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="6346297554-1">{</span><span·class="ss">application</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">prim_app</span><span·class="p">,</span><span·class="w"> |
| 192 | ·</span><span·class="p"·data-group-id=" | 192 | ·</span><span·class="p"·data-group-id="6346297554-2">[</span><span·class="p"·data-group-id="6346297554-3">{</span><span·class="ss">description</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"Tree·application"</span><span·class="p"·data-group-id="6346297554-3">}</span><span·class="p">,</span><span·class="w"> |
| 193 | ··</span><span·class="p"·data-group-id=" | 193 | ··</span><span·class="p"·data-group-id="6346297554-4">{</span><span·class="ss">vsn</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"1"</span><span·class="p"·data-group-id="6346297554-4">}</span><span·class="p">,</span><span·class="w"> |
| 194 | ··</span><span·class="p"·data-group-id=" | 194 | ··</span><span·class="p"·data-group-id="6346297554-5">{</span><span·class="ss">modules</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6346297554-6">[</span><span·class="ss">prim_app_cb</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">pr[·...·truncated·by·diffoscope;·len:·197,·SHA:·7fc30f6e4159c46b26a44741e0c4a27a7701b399368552609fec9a91421a46b3·...·]4-5">}</span><span·class="p">,</span><span·class="w"> |
| 195 | ··</span><span·class="p"·data-group-id=" | 195 | ··</span><span·class="p"·data-group-id="6346297554-7">{</span><span·class="ss">registered</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6346297554-8">[</span><span·class="ss">prim_app_server</span><span·class="p"·data-group-id="6346297554-8">]</span><span·c[·...·truncated·by·diffoscope;·len:·33,·SHA:·0f34c43b34a47958358741a5dc9589ee7f4dba9d8b741e56cb2ed0ac361799b5·...·]4-7">}</span><span·class="p">,</span><span·class="w"> |
| 196 | ··</span><span·class="p"·data-group-id=" | 196 | ··</span><span·class="p"·data-group-id="6346297554-9">{</span><span·class="ss">included_applications</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6346297554-10">[</span><span·class="ss">incl_app</span><span·class="p"·data-group-id="6346297554-10">]</span><[·...·truncated·by·diffoscope;·len:·39,·SHA:·6b4b74cbcb4827a83ec76287f23d55eeea5fa632509721c91f3dc51b4f2edbc7·...·]4-9">}</span><span·class="p">,</span><span·class="w"> |
| 197 | ··</span><span·class="p"·data-group-id=" | 197 | ··</span><span·class="p"·data-group-id="6346297554-11">{</span><span·class="ss">start_phases</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6346297554-12">[</span><span·class="p"·data-group-id="6346297554-13">{</span><span·class="ss">init</span><span·class="[·...·truncated·by·diffoscope;·len:·581,·SHA:·1d1d07b7ccb6d73fb83571324ac29ce2dbdd0ce13d8989b4acf5c0c61d3d1901·...·]4-11">}</span><span·class="p">,</span><span·class="w"> |
| 198 | ··</span><span·class="p"·data-group-id=" | 198 | ··</span><span·class="p"·data-group-id="6346297554-17">{</span><span·class="ss">applications</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6346297554-18">[</span><span·class="ss">kernel</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">[·...·truncated·by·diffoscope;·len:·183,·SHA:·7394e6ab3d880d60b2cd65cd38237e3edaab9cae647cdb9b0ab7bb44e5d77968·...·]4-17">}</span><span·class="p">,</span><span·class="w"> |
| 199 | ··</span><span·class="p"·data-group-id=" | 199 | ··</span><span·class="p"·data-group-id="6346297554-19">{</span><span·class="ss">mod</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6346297554-20">{</span><span·class="ss">application_starter</span><span·class="p">,</span><span·class="p"·data-group-id="634629[·...·truncated·by·diffoscope;·len:·332,·SHA:·405ad9b56b33627d89c4aa43ea3e6c2fd210a34da47cc9a65011e70e220a7e57·...·]4-19">}</span><span·class="p">,</span><span·class="w"> |
| 200 | ··</span><span·class="p"·data-group-id=" | 200 | ··</span><span·class="p"·data-group-id="6346297554-23">{</span><span·class="ss">env</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6346297554-24">[</span><span·class="p"·data-group-id="6346297554-25">{</span><span·class="ss">file</span><span·class="p">,</spa[·...·truncated·by·diffoscope;·len:·223,·SHA:·e3fb47b6cfd2a10e2eff3221c943eaee0b4d4365020f990e11f5ba7fb70b5f69·...·]4-23">}</span><span·class="w"> |
| 201 | ·</span><span·class="p"·data-group-id=" | 201 | ·</span><span·class="p"·data-group-id="6346297554-2">]</span><span·class="p"·data-group-id="6346297554-1">}</span><span·class="p">.</span><span·class="w"> |
| 202 | </span><span·class="p"·data-group-id=" | 202 | </span><span·class="p"·data-group-id="6346297554-26">{</span><span·class="ss">application</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">incl_app</span><span·class="p">,</span><span·class="w"> |
| 203 | ·</span><span·class="p"·data-group-id=" | 203 | ·</span><span·class="p"·data-group-id="6346297554-27">[</span><span·class="p"·data-group-id="6346297554-28">{</span><span·class="ss">description</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"Included·application"</span><span·class="p"·data-group-id="6346297554-28">}</span><span·class="p">,</span><span·class="w"> |
| 204 | ··</span><span·class="p"·data-group-id=" | 204 | ··</span><span·class="p"·data-group-id="6346297554-29">{</span><span·class="ss">vsn</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"1"</span><span·class="p"·data-group-id="6346297554-29">}</span><span·class="p">,</span><span·class="w"> |
| 205 | ··</span><span·class="p"·data-group-id=" | 205 | ··</span><span·class="p"·data-group-id="6346297554-30">{</span><span·class="ss">modules</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6346297554-31">[</span><span·class="ss">incl_app_cb</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">[·...·truncated·by·diffoscope;·len:·200,·SHA:·cc893bc253f36d82f63b27355e00a1e7e287148897220b54ce6954865a48cb8a·...·]4-30">}</span><span·class="p">,</span><span·class="w"> |
| 206 | ··</span><span·class="p"·data-group-id=" | 206 | ··</span><span·class="p"·data-group-id="6346297554-32">{</span><span·class="ss">registered</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6346297554-33">[</span><span·class="p"·data-group-id="6346297554-33">]</span><span·class="p"·data-group-id="6346297554-32">}</span><span·class="p">,</span><span·class="w"> |
| 207 | ··</span><span·class="p"·data-group-id=" | 207 | ··</span><span·class="p"·data-group-id="6346297554-34">{</span><span·class="ss">start_phases</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6346297554-35">[</span><span·class="p"·data-group-id="6346297554-36">{</span><span·class="ss">go</span><span·class="p"[·...·truncated·by·diffoscope;·len:·265,·SHA:·6a9d7f2f380b45bf01d29cc6dbcf3b86b934a8f22a2df88aa3edc2d629329b50·...·]4-34">}</span><span·class="p">,</span><span·class="w"> |
| 208 | ··</span><span·class="p"·data-group-id=" | 208 | ··</span><span·class="p"·data-group-id="6346297554-38">{</span><span·class="ss">applications</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6346297554-39">[</span><span·class="ss">kernel</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">[·...·truncated·by·diffoscope;·len:·183,·SHA:·fcf587d8f95d9b246a2c5ec1998972bccc861454aff0fc6823ba1713f22ad777·...·]4-38">}</span><span·class="p">,</span><span·class="w"> |
| 209 | ··</span><span·class="p"·data-group-id="3681387604-40">{</span><span·class="ss">mod</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3681387604-41">{</span><span·class="ss">incl_app_cb</span><span·class="p">,</span><span·class="p"·data-group-id="3681387604-42">[</span><span·class="p"·data-group-id="3681387604-42">]</span><span·class="p"·data-group-id="3681387604-41">}</span><span·class="p"·data-group-id="3681387604-40">}</span><span·class="w"> | ||
| 210 | ·</span><span·class="p"·data-group-id="36 | 209 | ··</span><span·class="p"·data-group-id="6346297554-40">{</span><span·class="ss">mod</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6346297554-41">{</span><span·class="ss">incl_app_cb</span><span·class="p">,</span><span·[·...·truncated·by·diffoscope;·len:·226,·SHA:·64f459b260014bb51e5a951949c55aed50d2960ee680f30770a18a9e157f31e3·...·] |
| 210 | ·</span><span·class="p"·data-group-id="6346297554-27">]</span><span·class="p"·data-group-id="6346297554-26">}</span><span·class="p">.</span></code></pre><p>When·starting·a·primary·application·with·included·applications,·the·primary | ||
| 211 | application·is·started·the·normal·way,·that·is:</p><ul><li>The·application·controller·creates·an·application·master·for·the·application</li><li>The·application·master·calls·<code·class="inline">Module:start(normal,·StartArgs)</code>·to·start·the | 211 | application·is·started·the·normal·way,·that·is:</p><ul><li>The·application·controller·creates·an·application·master·for·the·application</li><li>The·application·master·calls·<code·class="inline">Module:start(normal,·StartArgs)</code>·to·start·the |
| 212 | top·supervisor.</li></ul><p>Then,·for·the·primary·application·and·each·included·application·in·top-down, | 212 | top·supervisor.</li></ul><p>Then,·for·the·primary·application·and·each·included·application·in·top-down, |
| 213 | left-to-right·order,·the·application·master·calls | 213 | left-to-right·order,·the·application·master·calls |
| 214 | <code·class="inline">Module:start_phase(Phase,·Type,·PhaseArgs)</code>·for·each·phase·defined·for·the | 214 | <code·class="inline">Module:start_phase(Phase,·Type,·PhaseArgs)</code>·for·each·phase·defined·for·the |
| 215 | primary·application,·in·that·order.·If·a·phase·is·not·defined·for·an·included | 215 | primary·application,·in·that·order.·If·a·phase·is·not·defined·for·an·included |
| 216 | application,·the·function·is·not·called·for·this·phase·and·application.</p><p>The·following·requirements·apply·to·the·<code·class="inline">.app</code>·file·for·an·included·application:</p><ul><li>The·<code·class="inline">{mod,·{Module,StartArgs}}</code>·option·must·be·included.·This·option·is·used | 216 | application,·the·function·is·not·called·for·this·phase·and·application.</p><p>The·following·requirements·apply·to·the·<code·class="inline">.app</code>·file·for·an·included·application:</p><ul><li>The·<code·class="inline">{mod,·{Module,StartArgs}}</code>·option·must·be·included.·This·option·is·used |
| 217 | to·find·the·callback·module·<code·class="inline">Module</code>·of·the·application.·<code·class="inline">StartArgs</code>·is | 217 | to·find·the·callback·module·<code·class="inline">Module</code>·of·the·application.·<code·class="inline">StartArgs</code>·is |
| 218 | ignored,·as·<code·class="inline">Module:start/2</code>·is·called·only·for·the·primary·application.</li><li>If·the·included·application·itself·contains·included·applications,·instead·the | 218 | ignored,·as·<code·class="inline">Module:start/2</code>·is·called·only·for·the·primary·application.</li><li>If·the·included·application·itself·contains·included·applications,·instead·the |
| 219 | <code·class="inline">{mod,·{application_starter,·[Module,StartArgs]}}</code>·option·must·be·included.</li><li>The·<code·class="inline">{start_phases,·[{Phase,PhaseArgs}]}</code>·option·must·be·included,·and·the·set | 219 | <code·class="inline">{mod,·{application_starter,·[Module,StartArgs]}}</code>·option·must·be·included.</li><li>The·<code·class="inline">{start_phases,·[{Phase,PhaseArgs}]}</code>·option·must·be·included,·and·the·set |
| 220 | of·specified·phases·must·be·a·subset·of·the·set·of·phases·specified·for·the | 220 | of·specified·phases·must·be·a·subset·of·the·set·of·phases·specified·for·the |
| 221 | primary·application.</li></ul><p>When·starting·<code·class="inline">prim_app</code>·as·defined·above,·the·application·controller·calls·the | 221 | primary·application.</li></ul><p>When·starting·<code·class="inline">prim_app</code>·as·defined·above,·the·application·controller·calls·the |
| 222 | following·callback·functions·before·<code·class="inline">application:start(prim_app)</code>·returns·a | 222 | following·callback·functions·before·<code·class="inline">application:start(prim_app)</code>·returns·a |
| 223 | value:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">application</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id=" | 223 | value:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">application</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id="6846248078-1">(</span><span·class="ss">prim_app</span><span·class="p"·data-group-id="6846248078-1">)</span><span·class="w"> |
| 224 | ·</span><span·class="p">=></span><span·class="w">·</span><span·class="nc">prim_app_cb</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id=" | 224 | ·</span><span·class="p">=></span><span·class="w">·</span><span·class="nc">prim_app_cb</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id="6846248078-2">(</span><span·class="ss">normal</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6846248078-3">[</span><span·class="p"·data-group-id="6846248078-3">]</span><span·class="p"·data-group-id="6846248078-2">)</span><span·class="w"> |
| 225 | ·</span><span·class="p">=></span><span·class="w">·</span><span·class="nc">prim_app_cb</span><span·class="p">:</span><span·class="nf">start_phase</span><span·class="p"·data-group-id=" | 225 | ·</span><span·class="p">=></span><span·class="w">·</span><span·class="nc">prim_app_cb</span><span·class="p">:</span><span·class="nf">start_phase</span><span·class="p"·data-group-id="6846248078-4">(</span><span·class="ss">init</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">normal</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6846248078-5">[</span><span·class="p"·data-group-[·...·truncated·by·diffoscope;·len:·67,·SHA:·b2446cab9909a924f703dfb6184137a8958b44cf202282e0a2d8f7632209e7ec·...·]-4">)</span><span·class="w"> |
| 226 | ·</span><span·class="p">=></span><span·class="w">·</span><span·class="nc">prim_app_cb</span><span·class="p">:</span><span·class="nf">start_phase</span><span·class="p"·data-group-id=" | 226 | ·</span><span·class="p">=></span><span·class="w">·</span><span·class="nc">prim_app_cb</span><span·class="p">:</span><span·class="nf">start_phase</span><span·class="p"·data-group-id="6846248078-6">(</span><span·class="ss">go</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">normal</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6846248078-7">[</span><span·class="p"·data-group-id[·...·truncated·by·diffoscope;·len:·65,·SHA:·1848c596c4e1f8fe62becd45a0ab638f77a542facbc8819f0f3b0962d512c2f6·...·]-6">)</span><span·class="w"> |
| 227 | ·</span><span·class="p">=></span><span·class="w">·</span><span·class="nc">incl_app_cb</span><span·class="p">:</span><span·class="nf">start_phase</span><span·class="p"·data-group-id=" | 227 | ·</span><span·class="p">=></span><span·class="w">·</span><span·class="nc">incl_app_cb</span><span·class="p">:</span><span·class="nf">start_phase</span><span·class="p"·data-group-id="6846248078-8">(</span><span·class="ss">go</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">normal</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6846248078-9">[</span><span·class="p"·data-group-id[·...·truncated·by·diffoscope;·len:·65,·SHA:·20b1ff0a2dd7c4c3b4d4549a340a218ba3d329ff1ea4cb58949a19677f5aa337·...·]-8">)</span><span·class="w"> |
| 228 | </span><span·class="ss">ok</span></code></pre> | 228 | </span><span·class="ss">ok</span></code></pre> |
| 229 | </div> | 229 | </div> |
| 230 | <div·class="bottom-actions"·id="bottom-actions"> | 230 | <div·class="bottom-actions"·id="bottom-actions"> |
| 231 | ··<div·class="bottom-actions-item"> | 231 | ··<div·class="bottom-actions-item"> |
| 232 | ······<a·href="applications.html"·class="bottom-actions-button"·rel="prev"> | 232 | ······<a·href="applications.html"·class="bottom-actions-button"·rel="prev"> |
| Offset 273, 15 lines modified | Offset 273, 15 lines modified | ||
| 273 | ······<p·class="built-using"> | 273 | ······<p·class="built-using"> |
| 274 | ········Built·using | 274 | ········Built·using |
| 275 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 275 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 276 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 276 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 277 | ······</p> | 277 | ······</p> |
| 278 | <p>Copyright·©·1996-202 | 278 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 279 | ····</footer> | 279 | ····</footer> |
| 280 | ··</div> | 280 | ··</div> |
| 281 | </main> | 281 | </main> |
| 282 | </div> | 282 | </div> |
| 283 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 283 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 284 | ··<script> | 284 | ··<script> |
| 285 | ··let·initialized·=·false; | 285 | ··let·initialized·=·false; |
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| 484 | ······<p·class="built-using"> | 484 | ······<p·class="built-using"> |
| 485 | ········Built·using | 485 | ········Built·using |
| 486 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 486 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 487 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 487 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 488 | ······</p> | 488 | ······</p> |
| 489 | <p>Copyright·©·1996-202 | 489 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 490 | ····</footer> | 490 | ····</footer> |
| 491 | ··</div> | 491 | ··</div> |
| 492 | </main> | 492 | </main> |
| 493 | </div> | 493 | </div> |
| 494 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 494 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 495 | ··<script> | 495 | ··<script> |
| 496 | ··let·initialized·=·false; | 496 | ··let·initialized·=·false; |
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| 295 | </span><span·class="gp·unselectable">$·</span><span·class="">cd·erts/emulator | 295 | </span><span·class="gp·unselectable">$·</span><span·class="">cd·erts/emulator |
| 296 | </span><span·class="gp·unselectable">$·</span><span·class="">make·debug | 296 | </span><span·class="gp·unselectable">$·</span><span·class="">make·debug |
| 297 | </span><span·class="gp·unselectable">$·</span><span·class="">cd·../etc | 297 | </span><span·class="gp·unselectable">$·</span><span·class="">cd·../etc |
| 298 | </span><span·class="gp·unselectable">$·</span><span·class="">make·debug | 298 | </span><span·class="gp·unselectable">$·</span><span·class="">make·debug |
| 299 | </span></code></pre><p>and·sometimes</p><pre><code·class="makeup·shell"·translate="no"><span·class="gp·unselectable">$·</span><span·class="">cd·$ERL_TOP | 299 | </span></code></pre><p>and·sometimes</p><pre><code·class="makeup·shell"·translate="no"><span·class="gp·unselectable">$·</span><span·class="">cd·$ERL_TOP |
| 300 | </span><span·class="gp·unselectable">$·</span><span·class="">make·local_setup | 300 | </span><span·class="gp·unselectable">$·</span><span·class="">make·local_setup |
| 301 | </span></code></pre><p>So·now·when·you·run·<code·class="inline">$ERL_TOP/erl.exe</code>,·you·should·have·a·debug·compiled | 301 | </span></code></pre><p>So·now·when·you·run·<code·class="inline">$ERL_TOP/erl.exe</code>,·you·should·have·a·debug·compiled |
| 302 | emulator,·which·you·will·see·if·you·do·a:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">system_info</span><span·class="p"·data-group-id=" | 302 | emulator,·which·you·will·see·if·you·do·a:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">system_info</span><span·class="p"·data-group-id="8533146498-1">(</span><span·class="ss">system_version</span><span·class="p"·data-group-id="8533146498-1">)</span><span·class="p">.</span></code></pre><p>in·the·erlang·shell.·If·the·returned·string·contains·<code·class="inline">[debug]</code>,·you |
| 303 | got·a·debug·compiled·emulator.</p><p>To·hack·the·erlang·libraries,·you·simply·do·a·<code·class="inline">make·opt</code>·in·the | 303 | got·a·debug·compiled·emulator.</p><p>To·hack·the·erlang·libraries,·you·simply·do·a·<code·class="inline">make·opt</code>·in·the |
| 304 | specific·"applications"·directory,·like:</p><pre><code·class="makeup·shell"·translate="no"><span·class="gp·unselectable">$·</span><span·class="">cd·$ERL_TOP/lib/stdlib | 304 | specific·"applications"·directory,·like:</p><pre><code·class="makeup·shell"·translate="no"><span·class="gp·unselectable">$·</span><span·class="">cd·$ERL_TOP/lib/stdlib |
| 305 | </span><span·class="gp·unselectable">$·</span><span·class="">make·opt | 305 | </span><span·class="gp·unselectable">$·</span><span·class="">make·opt |
| 306 | </span></code></pre><p>or·even·in·the·source·directory...</p><pre><code·class="makeup·shell"·translate="no"><span·class="gp·unselectable">$·</span><span·class="">cd·$ERL_TOP/lib/stdlib/src | 306 | </span></code></pre><p>or·even·in·the·source·directory...</p><pre><code·class="makeup·shell"·translate="no"><span·class="gp·unselectable">$·</span><span·class="">cd·$ERL_TOP/lib/stdlib/src |
| 307 | </span><span·class="gp·unselectable">$·</span><span·class="">make·opt | 307 | </span><span·class="gp·unselectable">$·</span><span·class="">make·opt |
| 308 | </span></code></pre><p>Note·that·you're·expected·to·have·a·fresh·Erlang·in·your·path·when | 308 | </span></code></pre><p>Note·that·you're·expected·to·have·a·fresh·Erlang·in·your·path·when |
| 309 | doing·this,·preferably·the·plain·28·you·have·built·in·the·previous | 309 | doing·this,·preferably·the·plain·28·you·have·built·in·the·previous |
| Offset 318, 19 lines modified | Offset 318, 19 lines modified | ||
| 318 | </span><span·class="">:$ERL_TOP/erts/etc/win32/wsl_tools:$ERL_TOP/bootstrap/bin:$PATH | 318 | </span><span·class="">:$ERL_TOP/erts/etc/win32/wsl_tools:$ERL_TOP/bootstrap/bin:$PATH |
| 319 | </span></code></pre><p>That·should·make·it·possible·to·rebuild·any·library·without·hassle...</p><p>If·you·want·to·copy·a·library·(an·application)·newly·built,·to·a | 319 | </span></code></pre><p>That·should·make·it·possible·to·rebuild·any·library·without·hassle...</p><p>If·you·want·to·copy·a·library·(an·application)·newly·built,·to·a |
| 320 | release·area,·you·do·like·with·the·emulator:</p><pre><code·class="makeup·shell"·translate="no"><span·class="gp·unselectable">$·</span><span·class="">cd·$ERL_TOP/lib/stdlib | 320 | release·area,·you·do·like·with·the·emulator:</p><pre><code·class="makeup·shell"·translate="no"><span·class="gp·unselectable">$·</span><span·class="">cd·$ERL_TOP/lib/stdlib |
| 321 | </span><span·class="gp·unselectable">$·</span><span·class="">make·TESTROOT=/tmp/erlang_release·release | 321 | </span><span·class="gp·unselectable">$·</span><span·class="">make·TESTROOT=/tmp/erlang_release·release |
| 322 | </span></code></pre><p>Remember·that:</p><ul><li><p>··Windows·specific·C-code·goes·in·the·<code·class="inline">$ERL_TOP/erts/emulator/sys/win32</code>, | 322 | </span></code></pre><p>Remember·that:</p><ul><li><p>··Windows·specific·C-code·goes·in·the·<code·class="inline">$ERL_TOP/erts/emulator/sys/win32</code>, |
| 323 | <code·class="inline">$ERL_TOP/erts/emulator/drivers/win32</code>·or·<code·class="inline">$ERL_TOP/erts/etc/win32</code>.</p></li><li><p>··Windows·specific·erlang·code·should·be·used·conditionally·and·the | 323 | <code·class="inline">$ERL_TOP/erts/emulator/drivers/win32</code>·or·<code·class="inline">$ERL_TOP/erts/etc/win32</code>.</p></li><li><p>··Windows·specific·erlang·code·should·be·used·conditionally·and·the |
| 324 | host·OS·tested·in·<em>runtime</em>,·the·exactly·same·beam·files·should·be | 324 | host·OS·tested·in·<em>runtime</em>,·the·exactly·same·beam·files·should·be |
| 325 | distributed·for·every·platform!·So·write·code·like:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="k">case</span><span·class="w">·</span><span·class="nc">os</span><span·class="p">:</span><span·class="nf">type</span><span·class="p"·data-group-id=" | 325 | distributed·for·every·platform!·So·write·code·like:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="k">case</span><span·class="w">·</span><span·class="nc">os</span><span·class="p">:</span><span·class="nf">type</span><span·class="p"·data-group-id="1217084016-1">(</span><span·class="p"·data-group-id="1217084016-1">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 326 | ····</span><span·class="p"·data-group-id=" | 326 | ····</span><span·class="p"·data-group-id="1217084016-2">{</span><span·class="ss">win32</span><span·class="p">,</span><span·class="p">_</span><span·class="p"·data-group-id="1217084016-2">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 327 | ········</span><span·class="nf">do_windows_specific</span><span·class="p"·data-group-id=" | 327 | ········</span><span·class="nf">do_windows_specific</span><span·class="p"·data-group-id="1217084016-3">(</span><span·class="p"·data-group-id="1217084016-3">)</span><span·class="p">;</span><span·class="w"> |
| 328 | ····</span><span·class="n">Other</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 328 | ····</span><span·class="n">Other</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 329 | ········</span><span·class="nf">do_fallback_or_exit</span><span·class="p"·data-group-id=" | 329 | ········</span><span·class="nf">do_fallback_or_exit</span><span·class="p"·data-group-id="1217084016-4">(</span><span·class="p"·data-group-id="1217084016-4">)</span><span·class="w"> |
| 330 | </span><span·class="k">end</span><span·class="p">,</span></code></pre></li></ul><p>That's·basically·all·you·need·to·get·going.</p><h2·id="frequently-asked-questions"·class="section-heading"> | 330 | </span><span·class="k">end</span><span·class="p">,</span></code></pre></li></ul><p>That's·basically·all·you·need·to·get·going.</p><h2·id="frequently-asked-questions"·class="section-heading"> |
| 331 | ··<a·href="#frequently-asked-questions"·class="hover-link"> | 331 | ··<a·href="#frequently-asked-questions"·class="hover-link"> |
| 332 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 332 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 333 | ··</a> | 333 | ··</a> |
| 334 | ··<span·class="text">Frequently·Asked·Questions</span> | 334 | ··<span·class="text">Frequently·Asked·Questions</span> |
| 335 | </h2> | 335 | </h2> |
| 336 | <ul><li><p>··Q:·So,·now·I·can·build·Erlang·using·GCC·on·Windows?</p><p>A:·No,·unfortunately·not.·You'll·need·Microsoft's·Visual·C++ | 336 | <ul><li><p>··Q:·So,·now·I·can·build·Erlang·using·GCC·on·Windows?</p><p>A:·No,·unfortunately·not.·You'll·need·Microsoft's·Visual·C++ |
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| 431 | ······<p·class="built-using"> | 431 | ······<p·class="built-using"> |
| 432 | ········Built·using | 432 | ········Built·using |
| 433 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 433 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 434 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 434 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 435 | ······</p> | 435 | ······</p> |
| 436 | <p>Copyright·©·1996-202 | 436 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 437 | ····</footer> | 437 | ····</footer> |
| 438 | ··</div> | 438 | ··</div> |
| 439 | </main> | 439 | </main> |
| 440 | </div> | 440 | </div> |
| 441 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 441 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 442 | ··<script> | 442 | ··<script> |
| 443 | ··let·initialized·=·false; | 443 | ··let·initialized·=·false; |
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| 661 | ······<p·class="built-using"> | 661 | ······<p·class="built-using"> |
| 662 | ········Built·using | 662 | ········Built·using |
| 663 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 663 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 664 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 664 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 665 | ······</p> | 665 | ······</p> |
| 666 | <p>Copyright·©·1996-202 | 666 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 667 | ····</footer> | 667 | ····</footer> |
| 668 | ··</div> | 668 | ··</div> |
| 669 | </main> | 669 | </main> |
| 670 | </div> | 670 | </div> |
| 671 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 671 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 672 | ··<script> | 672 | ··<script> |
| 673 | ··let·initialized·=·false; | 673 | ··let·initialized·=·false; |
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| 171 | ······<p·class="built-using"> | 171 | ······<p·class="built-using"> |
| 172 | ········Built·using | 172 | ········Built·using |
| 173 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 173 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 174 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 174 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 175 | ······</p> | 175 | ······</p> |
| 176 | <p>Copyright·©·1996-202 | 176 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 177 | ····</footer> | 177 | ····</footer> |
| 178 | ··</div> | 178 | ··</div> |
| 179 | </main> | 179 | </main> |
| 180 | </div> | 180 | </div> |
| 181 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 181 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 182 | ··<script> | 182 | ··<script> |
| 183 | ··let·initialized·=·false; | 183 | ··let·initialized·=·false; |
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| 117 | <h2·id="simple-examples"·class="section-heading"> | 117 | <h2·id="simple-examples"·class="section-heading"> |
| 118 | ··<a·href="#simple-examples"·class="hover-link"> | 118 | ··<a·href="#simple-examples"·class="hover-link"> |
| 119 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 119 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 120 | ··</a> | 120 | ··</a> |
| 121 | ··<span·class="text">Simple·Examples</span> | 121 | ··<span·class="text">Simple·Examples</span> |
| 122 | </h2> | 122 | </h2> |
| 123 | <p>This·section·starts·with·a·simple·example,·showing·a·generator·and·a·filter:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="p"·data-group-id=" | 123 | <p>This·section·starts·with·a·simple·example,·showing·a·generator·and·a·filter:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="p"·data-group-id="4006396225-1">[</span><span·class="n">X</span><span·class="w">·</span><span·class="p">||</span><span·class="w">·</span><span·class="n">X</span><span·class="w">·</span><span·class="o"><:-</span><span·class="w">·</span><span·class="p"·data-group-id="40063[·...·truncated·by·diffoscope;·len:·651,·SHA:·0fe4329896d36d68765d605b382e22674a56ab41c9837bd385d11a0069c9c6de·...·]-1">]</span><span·class="p">.</span><span·class="w"> |
| 124 | </span><span·class="p"·data-group-id=" | 124 | </span><span·class="p"·data-group-id="4006396225-3">[</span><span·class="ss">a</span><span·class="p">,</span><span·class="mi">4</span><span·class="p">,</span><span·class="ss">b</span><span·class="p">,</span><span·class="mi">5</span><span·class="p">,</span><span·class="mi">6</span><span·class="[·...·truncated·by·diffoscope;·len:·28,·SHA:·66424302a6636881481521958d0cf1b5214e9e03a5a3a777ee278111de5bdfc8·...·]-3">]</span></code></pre><p>This·is·read·as·follows:·The·list·of·X·such·that·X·is·taken·from·the·list |
| 125 | <code·class="inline">[1,2,a,...]</code>·and·X·is·greater·than·3.</p><p>The·notation·<code·class="inline">X·<:-·[1,2,a,...]</code>·is·a·generator·and·the·expression·<code·class="inline">X·>·3</code>·is·a | 125 | <code·class="inline">[1,2,a,...]</code>·and·X·is·greater·than·3.</p><p>The·notation·<code·class="inline">X·<:-·[1,2,a,...]</code>·is·a·generator·and·the·expression·<code·class="inline">X·>·3</code>·is·a |
| 126 | filter.</p><p>An·additional·filter,·<a·href="../../erts-16.0/doc/html/erlang.html#is_integer/1"><code·class="inline">is_integer(X)</code></a>,·can·be·added·to | 126 | filter.</p><p>An·additional·filter,·<a·href="../../erts-16.0/doc/html/erlang.html#is_integer/1"><code·class="inline">is_integer(X)</code></a>,·can·be·added·to |
| 127 | restrict·the·result·to·integers:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="p"·data-group-id=" | 127 | restrict·the·result·to·integers:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="p"·data-group-id="0205802550-1">[</span><span·class="n">X</span><span·class="w">·</span><span·class="p">||</span><span·class="w">·</span><span·class="n">X</span><span·class="w">·</span><span·class="o"><:-</span><span·class="w">·</span><span·class="p"·data-group-id="02058[·...·truncated·by·diffoscope;·len:·862,·SHA:·a0a6d88310cf185c2d8a0ae5f8bc71d44bd45174693ec86c37e4f0ace56751ee·...·]0-1">]</span><span·class="p">.</span><span·class="w"> |
| 128 | </span><span·class="p"·data-group-id=" | 128 | </span><span·class="p"·data-group-id="0205802550-4">[</span><span·class="mi">4</span><span·class="p">,</span><span·class="mi">5</span><span·class="p">,</span><span·class="mi">6</span><span·class="p"·data-group-id="0205802550-4">]</span></code></pre><p>Generators·can·be·combined·in·two·ways.·For·example,·the·Cartesian·product·of |
| 129 | two·lists·can·be·written·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="p"·data-group-id=" | 129 | two·lists·can·be·written·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="p"·data-group-id="6779812222-1">[</span><span·class="p"·data-group-id="6779812222-2">{</span><span·class="n">X</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Y</span><span·class="p"·data-group-id="6779812222-2">}</span><span·class="w">·</span><span·cl[·...·truncated·by·diffoscope;·len:·741,·SHA:·a20cb23937c7e56aa4a7b6c9faf4d336aab60750cf13ad2606b5aff16caa6d69·...·]-1">]</span><span·class="p">.</span><span·class="w"> |
| 130 | </span><span·class="p"·data-group-id=" | 130 | </span><span·class="p"·data-group-id="6779812222-5">[</span><span·class="p"·data-group-id="6779812222-6">{</span><span·class="mi">1</span><span·class="p">,</span><span·class="ss">a</span><span·class="p"·data-group-id="6779812222-6">}</span><span·class="p">,</span><span·class="p"·data-group-id=[·...·truncated·by·diffoscope;·len:·1011,·SHA:·4ee62f15b92140e23c339a56258db48b7dc3968b3cef2baab8f1f529b82d972c·...·]-5">]</span></code></pre><p>Alternatively,·two·lists·can·be·zipped·together·using·a·zip·generator·as |
| 131 | follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="p"·data-group-id=" | 131 | follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="p"·data-group-id="3920072523-1">[</span><span·class="p"·data-group-id="3920072523-2">{</span><span·class="n">X</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Y</span><span·class="p"·data-group-id="3920072523-2">}</span><span·class="w">·</span><span·cl[·...·truncated·by·diffoscope;·len:·823,·SHA:·7012576fd1b55ccb394a911069504824f3455aff4682af844b3d9f75014ec760·...·]-1">]</span><span·class="p">.</span><span·class="w"> |
| 132 | </span><span·class="p"·data-group-id=" | 132 | </span><span·class="p"·data-group-id="3920072523-5">[</span><span·class="p"·data-group-id="3920072523-6">{</span><span·class="mi">1</span><span·class="p">,</span><span·class="ss">a</span><span·class="p"·data-group-id="3920072523-6">}</span><span·class="p">,</span><span·class="p"·data-group-id=[·...·truncated·by·diffoscope;·len:·395,·SHA:·166733fe7c2e90dd3a3c6bd58315829b93bc70ca75d75f529672bd0efa74a9f8·...·]-5">]</span></code></pre><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Change</h4><p>Strict·generators·are·used·by·default·in·the·examples.·More·details·and |
| 133 | comparisons·can·be·found·in·<a·href="#strict-and-relaxed-generators">Strict·and·Relaxed·Generators</a>.</p></section><h2·id="quick-sort"·class="section-heading"> | 133 | comparisons·can·be·found·in·<a·href="#strict-and-relaxed-generators">Strict·and·Relaxed·Generators</a>.</p></section><h2·id="quick-sort"·class="section-heading"> |
| 134 | ··<a·href="#quick-sort"·class="hover-link"> | 134 | ··<a·href="#quick-sort"·class="hover-link"> |
| 135 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 135 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 136 | ··</a> | 136 | ··</a> |
| 137 | ··<span·class="text">Quick·Sort</span> | 137 | ··<span·class="text">Quick·Sort</span> |
| 138 | </h2> | 138 | </h2> |
| 139 | <p>The·well-known·quick·sort·routine·can·be·written·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">sort</span><span·class="p"·data-group-id=" | 139 | <p>The·well-known·quick·sort·routine·can·be·written·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">sort</span><span·class="p"·data-group-id="3048119228-1">(</span><span·class="p"·data-group-id="3048119228-2">[</span><span·class="p"·data-group-id="3048119228-2">]</span><span·class="p"·data-group-id="3048119228-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span[·...·truncated·by·diffoscope;·len:·95,·SHA:·39a94d834e4cd7e241aba7e342f96647b8952c79c31a824939edfc4281986234·...·]-3">]</span><span·class="p">;</span><span·class="w"> |
| 140 | </span><span·class="nf">sort</span><span·class="p"·data-group-id=" | 140 | </span><span·class="nf">sort</span><span·class="p"·data-group-id="3048119228-4">(</span><span·class="p"·data-group-id="3048119228-5">[</span><span·class="p">_</span><span·class="p"·data-group-id="3048119228-5">]</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">L</span><span·cl[·...·truncated·by·diffoscope;·len:·33,·SHA:·e3a19aa2a4360011c8994f95cd3a8e1b98e94d1b530430b31e41813af5242a85·...·]-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">L</span><span·class="p">;</span><span·class="w"> |
| 141 | </span><span·class="nf">sort</span><span·class="p"·data-group-id=" | 141 | </span><span·class="nf">sort</span><span·class="p"·data-group-id="3048119228-6">(</span><span·class="p"·data-group-id="3048119228-7">[</span><span·class="n">Pivot</span><span·class="p">|</span><span·class="n">T</span><span·class="p"·data-group-id="3048119228-7">]</span><span·class="p"·data-group-id="3048119228-6">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 142 | ····</span><span·class="nf">sort</span><span·class="p"·data-group-id=" | 142 | ····</span><span·class="nf">sort</span><span·class="p"·data-group-id="3048119228-8">(</span><span·class="p"·data-group-id="3048119228-9">[</span><span·class="w">·</span><span·class="n">X</span><span·class="w">·</span><span·class="p">||</span><span·class="w">·</span><span·class="n">X</span><span·class="w">·</span><span·class=[·...·truncated·by·diffoscope;·len:·334,·SHA:·b88f164ddafac996b48f27798d236ee6d5b126661d42d7310bd8fc568aa58815·...·]-8">)</span><span·class="w">·</span><span·class="o">++</span><span·class="w"> |
| 143 | ····</span><span·class="p"·data-group-id=" | 143 | ····</span><span·class="p"·data-group-id="3048119228-10">[</span><span·class="n">Pivot</span><span·class="p"·data-group-id="3048119228-10">]</span><span·class="w">·</span><span·class="o">++</span><span·class="w"> |
| 144 | ····</span><span·class="nf">sort</span><span·class="p"·data-group-id=" | 144 | ····</span><span·class="nf">sort</span><span·class="p"·data-group-id="3048119228-11">(</span><span·class="p"·data-group-id="3048119228-12">[</span><span·class="w">·</span><span·class="n">X</span><span·class="w">·</span><span·class="p">||</span><span·class="w">·</span><span·class="n">X</span><span·class="w">·</span><span·clas[·...·truncated·by·diffoscope;·len:·338,·SHA:·9b4113338965095bd7b54b706937b2ce3bc2e2d4f43121f2953c6b74a4943d6a·...·]-11">)</span><span·class="p">.</span></code></pre><p>The·expression·<code·class="inline">[X·||·X·<:-·T,·X·<·Pivot]</code>·is·the·list·of·all·elements·in·<code·class="inline">T</code> |
| 145 | that·are·less·than·<code·class="inline">Pivot</code>.</p><p><code·class="inline">[X·||·X·<:-·T,·X·>=·Pivot]</code>·is·the·list·of·all·elements·in·<code·class="inline">T</code>·that·are·greater | 145 | that·are·less·than·<code·class="inline">Pivot</code>.</p><p><code·class="inline">[X·||·X·<:-·T,·X·>=·Pivot]</code>·is·the·list·of·all·elements·in·<code·class="inline">T</code>·that·are·greater |
| 146 | than·or·equal·to·<code·class="inline">Pivot</code>.</p><p>With·the·algorithm·above,·a·list·is·sorted·as·follows:</p><ul><li>A·list·with·zero·or·one·element·is·trivially·sorted.</li><li>For·lists·with·more·than·one·element:<ol><li>The·first·element·in·the·list·is·isolated·as·the·pivot·element.</li><li>The·remaining·list·is·partitioned·into·two·sublists,·such·that:</li></ol><ul><li>The·first·sublist·contains·all·elements·that·are·smaller·than·the·pivot | 146 | than·or·equal·to·<code·class="inline">Pivot</code>.</p><p>With·the·algorithm·above,·a·list·is·sorted·as·follows:</p><ul><li>A·list·with·zero·or·one·element·is·trivially·sorted.</li><li>For·lists·with·more·than·one·element:<ol><li>The·first·element·in·the·list·is·isolated·as·the·pivot·element.</li><li>The·remaining·list·is·partitioned·into·two·sublists,·such·that:</li></ol><ul><li>The·first·sublist·contains·all·elements·that·are·smaller·than·the·pivot |
| 147 | element.</li><li>The·second·sublist·contains·all·elements·that·are·greater·than·or·equal·to | 147 | element.</li><li>The·second·sublist·contains·all·elements·that·are·greater·than·or·equal·to |
| 148 | the·pivot·element.</li></ul><ol><li>The·sublists·are·recursively·sorted·by·the·same·algorithm·and·the·results | 148 | the·pivot·element.</li></ul><ol><li>The·sublists·are·recursively·sorted·by·the·same·algorithm·and·the·results |
| 149 | are·combined,·resulting·in·a·list·consisting·of:</li></ol><ul><li>All·elements·from·the·first·sublist,·that·is·all·elements·smaller·than·the | 149 | are·combined,·resulting·in·a·list·consisting·of:</li></ol><ul><li>All·elements·from·the·first·sublist,·that·is·all·elements·smaller·than·the |
| 150 | pivot·element,·in·sorted·order.</li><li>The·pivot·element.</li><li>All·elements·from·the·second·sublist,·that·is·all·elements·greater·than·or | 150 | pivot·element,·in·sorted·order.</li><li>The·pivot·element.</li><li>All·elements·from·the·second·sublist,·that·is·all·elements·greater·than·or |
| 151 | equal·to·the·pivot·element,·in·sorted·order.</li></ul></li></ul><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>While·the·sorting·algorithm·as·shown·above·serves·as·a·nice·example·to | 151 | equal·to·the·pivot·element,·in·sorted·order.</li></ul></li></ul><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>While·the·sorting·algorithm·as·shown·above·serves·as·a·nice·example·to |
| Offset 154, 127 lines modified | Offset 154, 127 lines modified | ||
| 154 | <a·href="../../lib/stdlib-7.0/doc/html/lists.html"><code·class="inline">lists</code></a>·module·contains·sorting·functions·that·are·implemented·in·a·more | 154 | <a·href="../../lib/stdlib-7.0/doc/html/lists.html"><code·class="inline">lists</code></a>·module·contains·sorting·functions·that·are·implemented·in·a·more |
| 155 | efficient·way.</p></section><h2·id="permutations"·class="section-heading"> | 155 | efficient·way.</p></section><h2·id="permutations"·class="section-heading"> |
| 156 | ··<a·href="#permutations"·class="hover-link"> | 156 | ··<a·href="#permutations"·class="hover-link"> |
| 157 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 157 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 158 | ··</a> | 158 | ··</a> |
| 159 | ··<span·class="text">Permutations</span> | 159 | ··<span·class="text">Permutations</span> |
| 160 | </h2> | 160 | </h2> |
| 161 | <p>The·following·example·generates·all·permutations·of·the·elements·in·a·list:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">perms</span><span·class="p"·data-group-id=" | 161 | <p>The·following·example·generates·all·permutations·of·the·elements·in·a·list:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">perms</span><span·class="p"·data-group-id="0728040721-1">(</span><span·class="p"·data-group-id="0728040721-2">[</span><span·class="p"·data-group-id="0728040721-2">]</span><span·class="p"·data-group-id="0728040721-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span[·...·truncated·by·diffoscope;·len:·201,·SHA:·4b066ffa127efce45c3a745c9d240afbb19b2b333ccd100f2b57ae8df5010b1c·...·]-3">]</span><span·class="p">;</span><span·class="w"> |
| 162 | </span><span·class="nf">perms</span><span·class="p"·data-group-id=" | 162 | </span><span·class="nf">perms</span><span·class="p"·data-group-id="0728040721-5">(</span><span·class="n">L</span><span·class="p"·data-group-id="0728040721-5">)</span><span·class="w">··</span><span·class="p">-></span><span·class="w">·</span><span·class="p"·data-group-id="0728040721-6">[</span><span·class="p"·data-group-[·...·truncated·by·diffoscope;·len:·853,·SHA:·3265ab5558d12616d949fd0da50ab8ba5b10bb302828c167c28ee6a9f366afdd·...·]-6">]</span><span·class="p">.</span></code></pre><p>This·takes·<code·class="inline">H</code>·from·<code·class="inline">L</code>·in·all·possible·ways.·The·result·is·the·set·of·all·lists |
| 163 | <code·class="inline">[H|T]</code>,·where·<code·class="inline">T</code>·is·the·set·of·all·possible·permutations·of·<code·class="inline">L</code>,·with·<code·class="inline">H</code> | 163 | <code·class="inline">[H|T]</code>,·where·<code·class="inline">T</code>·is·the·set·of·all·possible·permutations·of·<code·class="inline">L</code>,·with·<code·class="inline">H</code> |
| 164 | removed:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="nf">perms</span><span·class="p"·data-group-id=" | 164 | removed:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="nf">perms</span><span·class="p"·data-group-id="6669077703-1">(</span><span·class="p"·data-group-id="6669077703-2">[</span><span·class="ss">b</span><span·class="p">,</span><span·class="ss">u</span><span·class="p">,</span><span·class="ss">g</span><span·class="p"·data-group-id="6669077703-2">]</span><span[·...·truncated·by·diffoscope;·len:·36,·SHA:·5ec6c6c2843bae81f21ca66bbd7ed16d1e4d6a12c11bea9e93faf3d1943954b9·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 165 | </span><span·class="p"·data-group-id=" | 165 | </span><span·class="p"·data-group-id="6669077703-3">[</span><span·class="p"·data-group-id="6669077703-4">[</span><span·class="ss">b</span><span·class="p">,</span><span·class="ss">u</span><span·class="p">,</span><span·class="ss">g</span><span·class="p"·data-group-id="6669077703-4">]</span><span[·...·truncated·by·diffoscope;·len:·1301,·SHA:·f71cb083b1d9ecdcdf35c3574fee085e0524249cfc95edda4d8d026d9a7541d3·...·]-3">]</span></code></pre><h2·id="pythagorean-triplets"·class="section-heading"> |
| 166 | ··<a·href="#pythagorean-triplets"·class="hover-link"> | 166 | ··<a·href="#pythagorean-triplets"·class="hover-link"> |
| 167 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 167 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 168 | ··</a> | 168 | ··</a> |
| 169 | ··<span·class="text">Pythagorean·Triplets</span> | 169 | ··<span·class="text">Pythagorean·Triplets</span> |
| 170 | </h2> | 170 | </h2> |
| 171 | <p>Pythagorean·triplets·are·sets·of·integers·<code·class="inline">{A,B,C}</code>·such·that | 171 | <p>Pythagorean·triplets·are·sets·of·integers·<code·class="inline">{A,B,C}</code>·such·that |
| 172 | <code·class="inline">A**2·+·B**2·=·C**2</code>.</p><p>The·function·<code·class="inline">pyth(N)</code>·generates·a·list·of·all·integers·<code·class="inline">{A,B,C}</code>·such·that | 172 | <code·class="inline">A**2·+·B**2·=·C**2</code>.</p><p>The·function·<code·class="inline">pyth(N)</code>·generates·a·list·of·all·integers·<code·class="inline">{A,B,C}</code>·such·that |
| 173 | <code·class="inline">A**2·+·B**2·=·C**2</code>·and·where·the·sum·of·the·sides·is·equal·to,·or·less·than, | 173 | <code·class="inline">A**2·+·B**2·=·C**2</code>·and·where·the·sum·of·the·sides·is·equal·to,·or·less·than, |
| 174 | <code·class="inline">N</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">pyth</span><span·class="p"·data-group-id=" | 174 | <code·class="inline">N</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">pyth</span><span·class="p"·data-group-id="2141503932-1">(</span><span·class="n">N</span><span·class="p"·data-group-id="2141503932-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 175 | ····</span><span·class="p"·data-group-id=" | 175 | ····</span><span·class="p"·data-group-id="2141503932-2">[</span><span·class="w">·</span><span·class="p"·data-group-id="2141503932-3">{</span><span·class="n">A</span><span·class="p">,</span><span·class="n">B</span><span·class="p">,</span><span·class="n">C</span><span·class="p"·data-group-id="214150[·...·truncated·by·diffoscope;·len:·4,·SHA:·bcbbc9eada524a09e5e5fc8d8c2ef291578291e3e0df5f98e6b898357032afae·...·]-3">}</span><span·class="w">·</span><span·class="p">||</span><span·class="w"> |
| 176 | ········</span><span·class="n">A</span><span·class="w">·</span><span·class="o"><:-</span><span·class="w">·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">seq</span><span·class="p"·data-group-id=" | 176 | ········</span><span·class="n">A</span><span·class="w">·</span><span·class="o"><:-</span><span·class="w">·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">seq</span><span·class="p"·data-group-id="2141503932-4">(</span><span·class="mi">1</span><span·class="p">,</span><span·class="n">N</span><span·class="p"·data-group-id="2141503932-4">)</span><span·class="p">,</span><span·class="w"> |
| 177 | ········</span><span·class="n">B</span><span·class="w">·</span><span·class="o"><:-</span><span·class="w">·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">seq</span><span·class="p"·data-group-id=" | 177 | ········</span><span·class="n">B</span><span·class="w">·</span><span·class="o"><:-</span><span·class="w">·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">seq</span><span·class="p"·data-group-id="2141503932-5">(</span><span·class="mi">1</span><span·class="p">,</span><span·class="n">N</span><span·class="p"·data-group-id="2141503932-5">)</span><span·class="p">,</span><span·class="w"> |
| 178 | ········</span><span·class="n">C</span><span·class="w">·</span><span·class="o"><:-</span><span·class="w">·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">seq</span><span·class="p"·data-group-id=" | 178 | ········</span><span·class="n">C</span><span·class="w">·</span><span·class="o"><:-</span><span·class="w">·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">seq</span><span·class="p"·data-group-id="2141503932-6">(</span><span·class="mi">1</span><span·class="p">,</span><span·class="n">N</span><span·class="p"·data-group-id="2141503932-6">)</span><span·class="p">,</span><span·class="w"> |
| 179 | ········</span><span·class="n">A</span><span·class="o">+</span><span·class="n">B</span><span·class="o">+</span><span·class="n">C</span><span·class="w">·</span><span·class="o">=<</span><span·class="w">·</span><span·class="n">N</span><span·class="p">,</span><span·class="w"> | 179 | ········</span><span·class="n">A</span><span·class="o">+</span><span·class="n">B</span><span·class="o">+</span><span·class="n">C</span><span·class="w">·</span><span·class="o">=<</span><span·class="w">·</span><span·class="n">N</span><span·class="p">,</span><span·class="w"> |
| 180 | ········</span><span·class="n">A</span><span·class="o">*</span><span·class="n">A</span><span·class="o">+</span><span·class="n">B</span><span·class="o">*</span><span·class="n">B</span><span·class="w">·</span><span·class="o">==</span><span·class="w">·</span><span·class="n">C</span><span·class="o">*</span><span·class="n">C</span><span·class="w"> | 180 | ········</span><span·class="n">A</span><span·class="o">*</span><span·class="n">A</span><span·class="o">+</span><span·class="n">B</span><span·class="o">*</span><span·class="n">B</span><span·class="w">·</span><span·class="o">==</span><span·class="w">·</span><span·class="n">C</span><span·class="o">*</span><span·class="n">C</span><span·class="w"> |
| 181 | ····</span><span·class="p"·data-group-id=" | 181 | ····</span><span·class="p"·data-group-id="2141503932-2">]</span><span·class="p">.</span></code></pre><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="nf">pyth</span><span·class="p"·data-group-id="4490312990-1">(</span><span·class="mi">3</span><[·...·truncated·by·diffoscope;·len:·40,·SHA:·ed8ec82f63bb2e3fbbdf5da15d1b1a54894a29859a0b6c8b268db62360815ae5·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 182 | </span><span·class="p"·data-group-id=" | 182 | </span><span·class="p"·data-group-id="4490312990-2">[</span><span·class="p"·data-group-id="4490312990-2">]</span><span·class="p">.</span><span·class="gp·unselectable"> |
| 183 | >·</span><span·class="nf">pyth</span><span·class="p"·data-group-id=" | 183 | >·</span><span·class="nf">pyth</span><span·class="p"·data-group-id="4490312990-3">(</span><span·class="mi">11</span><span·class="p"·data-group-id="4490312990-3">)</span><span·class="p">.</span><span·class="w"> |
| 184 | </span><span·class="p"·data-group-id=" | 184 | </span><span·class="p"·data-group-id="4490312990-4">[</span><span·class="p"·data-group-id="4490312990-4">]</span><span·class="p">.</span><span·class="gp·unselectable"> |
| 185 | >·</span><span·class="nf">pyth</span><span·class="p"·data-group-id=" | 185 | >·</span><span·class="nf">pyth</span><span·class="p"·data-group-id="4490312990-5">(</span><span·class="mi">12</span><span·class="p"·data-group-id="4490312990-5">)</span><span·class="p">.</span><span·class="w"> |
| 186 | </span><span·class="p"·data-group-id=" | 186 | </span><span·class="p"·data-group-id="4490312990-6">[</span><span·class="p"·data-group-id="4490312990-7">{</span><span·class="mi">3</span><span·class="p">,</span><span·class="mi">4</span><span·class="p">,</span><span·class="mi">5</span><span·class="p"·data-group-id="4490312990-7">}</span><span[·...·truncated·by·diffoscope;·len:·289,·SHA:·04d17435a8b1110e7afc85082a02fb51ebdbe26dfbd271cf2dd6adca078a48dd·...·]-6">]</span><span·class="gp·unselectable"> |
| 187 | >·</span><span·class="nf">pyth</span><span·class="p"·data-group-id=" | 187 | >·</span><span·class="nf">pyth</span><span·class="p"·data-group-id="4490312990-9">(</span><span·class="mi">50</span><span·class="p"·data-group-id="4490312990-9">)</span><span·class="p">.</span><span·class="w"> |
| 188 | </span><span·class="p"·data-group-id=" | 188 | </span><span·class="p"·data-group-id="4490312990-10">[</span><span·class="p"·data-group-id="4490312990-11">{</span><span·class="mi">3</span><span·class="p">,</span><span·class="mi">4</span><span·class="p">,</span><span·class="mi">5</span><span·class="p"·data-group-id="4490312990-11">}</span><span·class="p">,</span><span·class="w"> |
| 189 | ·</span><span·class="p"·data-group-id=" | 189 | ·</span><span·class="p"·data-group-id="4490312990-12">{</span><span·class="mi">4</span><span·class="p">,</span><span·class="mi">3</span><span·class="p">,</span><span·class="mi">5</span><span·class="p"·data-group-id="4490312990-12">}</span><span·class="p">,</span><span·class="w"> |
| 190 | ·</span><span·class="p"·data-group-id=" | 190 | ·</span><span·class="p"·data-group-id="4490312990-13">{</span><span·class="mi">5</span><span·class="p">,</span><span·class="mi">12</span><span·class="p">,</span><span·class="mi">13</span><span·class="p"·data-group-id="4490312990-13">}</span><span·class="p">,</span><span·class="w"> |
| 191 | ·</span><span·class="p"·data-group-id=" | 191 | ·</span><span·class="p"·data-group-id="4490312990-14">{</span><span·class="mi">6</span><span·class="p">,</span><span·class="mi">8</span><span·class="p">,</span><span·class="mi">10</span><span·class="p"·data-group-id="4490312990-14">}</span><span·class="p">,</span><span·class="w"> |
| 192 | ·</span><span·class="p"·data-group-id=" | 192 | ·</span><span·class="p"·data-group-id="4490312990-15">{</span><span·class="mi">8</span><span·class="p">,</span><span·class="mi">6</span><span·class="p">,</span><span·class="mi">10</span><span·class="p"·data-group-id="4490312990-15">}</span><span·class="p">,</span><span·class="w"> |
| 193 | ·</span><span·class="p"·data-group-id=" | 193 | ·</span><span·class="p"·data-group-id="4490312990-16">{</span><span·class="mi">8</span><span·class="p">,</span><span·class="mi">15</span><span·class="p">,</span><span·class="mi">17</span><span·class="p"·data-group-id="4490312990-16">}</span><span·class="p">,</span><span·class="w"> |
| 194 | ·</span><span·class="p"·data-group-id=" | 194 | ·</span><span·class="p"·data-group-id="4490312990-17">{</span><span·class="mi">9</span><span·class="p">,</span><span·class="mi">12</span><span·class="p">,</span><span·class="mi">15</span><span·class="p"·data-group-id="4490312990-17">}</span><span·class="p">,</span><span·class="w"> |
| 195 | ·</span><span·class="p"·data-group-id=" | 195 | ·</span><span·class="p"·data-group-id="4490312990-18">{</span><span·class="mi">12</span><span·class="p">,</span><span·class="mi">5</span><span·class="p">,</span><span·class="mi">13</span><span·class="p"·data-group-id="4490312990-18">}</span><span·class="p">,</span><span·class="w"> |
| 196 | ·</span><span·class="p"·data-group-id=" | 196 | ·</span><span·class="p"·data-group-id="4490312990-19">{</span><span·class="mi">12</span><span·class="p">,</span><span·class="mi">9</span><span·class="p">,</span><span·class="mi">15</span><span·class="p"·data-group-id="4490312990-19">}</span><span·class="p">,</span><span·class="w"> |
| 197 | ·</span><span·class="p"·data-group-id=" | 197 | ·</span><span·class="p"·data-group-id="4490312990-20">{</span><span·class="mi">12</span><span·class="p">,</span><span·class="mi">16</span><span·class="p">,</span><span·class="mi">20</span><span·class="p"·data-group-id="4490312990-20">}</span><span·class="p">,</span><span·class="w"> |
| 198 | ·</span><span·class="p"·data-group-id=" | 198 | ·</span><span·class="p"·data-group-id="4490312990-21">{</span><span·class="mi">15</span><span·class="p">,</span><span·class="mi">8</span><span·class="p">,</span><span·class="mi">17</span><span·class="p"·data-group-id="4490312990-21">}</span><span·class="p">,</span><span·class="w"> |
| 199 | ·</span><span·class="p"·data-group-id=" | 199 | ·</span><span·class="p"·data-group-id="4490312990-22">{</span><span·class="mi">16</span><span·class="p">,</span><span·class="mi">12</span><span·class="p">,</span><span·class="mi">20</span><span·class="p"·data-group-id="4490312990-22">}</span><span·class="p"·data-group-id="4490312990-10">]</span[·...·truncated·by·diffoscope;·len:·282,·SHA:·b315b5eb10bb39c83e0c2c0a1cc7ff8d3644540fb9653b72ac0bbccd87969fe7·...·]-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 200 | ···</span><span·class="p"·data-group-id=" | 200 | ···</span><span·class="p"·data-group-id="4478707606-2">[</span><span·class="p"·data-group-id="4478707606-3">{</span><span·class="n">A</span><span·class="p">,</span><span·class="n">B</span><span·class="p">,</span><span·class="n">C</span><span·class="p"·data-group-id="4478707606-3">}</span><span·class="w">·</span><span·class="p">||</span><span·class="w"> |
| 201 | ·······</span><span·class="n">A</span><span·class="w">·</span><span·class="o"><:-</span><span·class="w">·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">seq</span><span·class="p"·data-group-id=" | 201 | ·······</span><span·class="n">A</span><span·class="w">·</span><span·class="o"><:-</span><span·class="w">·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">seq</span><span·class="p"·data-group-id="4478707606-4">(</span><span·class="mi">1</span><span·class="p">,</span><span·class="n">N</span><span·class="o">-</span><span·class="mi">2</span><span·class="p"·data-group-id="4478707606-4">)</span><span·class="p">,</span><span·class="w"> |
| 202 | ·······</span><span·class="n">B</span><span·class="w">·</span><span·class="o"><:-</span><span·class="w">·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">seq</span><span·class="p"·data-group-id=" | 202 | ·······</span><span·class="n">B</span><span·class="w">·</span><span·class="o"><:-</span><span·class="w">·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">seq</span><span·class="p"·data-group-id="4478707606-5">(</span><span·class="n">A</span><span·class="o">+</span><span·class="mi">1</span><span·class="p">,</span><span·class="n">N</span><span·class="o">-</span><span·class="mi">1</span><span·class="p"·data-group-id="4478707606-5">)</span><span·class="p">,</span><span·class="w"> |
| 203 | ·······</span><span·class="n">C</span><span·class="w">·</span><span·class="o"><:-</span><span·class="w">·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">seq</span><span·class="p"·data-group-id=" | 203 | ·······</span><span·class="n">C</span><span·class="w">·</span><span·class="o"><:-</span><span·class="w">·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">seq</span><span·class="p"·data-group-id="4478707606-6">(</span><span·class="n">B</span><span·class="o">+</span><span·class="mi">1</span><span·class="p">,</span><span·class="n">N</span><span·class="p"·data-group-id="4478707606-6">)</span><span·class="p">,</span><span·class="w"> |
| 204 | ·······</span><span·class="n">A</span><span·class="o">+</span><span·class="n">B</span><span·class="o">+</span><span·class="n">C</span><span·class="w">·</span><span·class="o">=<</span><span·class="w">·</span><span·class="n">N</span><span·class="p">,</span><span·class="w"> | 204 | ·······</span><span·class="n">A</span><span·class="o">+</span><span·class="n">B</span><span·class="o">+</span><span·class="n">C</span><span·class="w">·</span><span·class="o">=<</span><span·class="w">·</span><span·class="n">N</span><span·class="p">,</span><span·class="w"> |
| 205 | ·······</span><span·class="n">A</span><span·class="o">*</span><span·class="n">A</span><span·class="o">+</span><span·class="n">B</span><span·class="o">*</span><span·class="n">B</span><span·class="w">·</span><span·class="o">==</span><span·class="w">·</span><span·class="n">C</span><span·class="o">*</span><span·class="n">C</span><span·class="w">·</span><span·class="p"·data-group-id=" | 205 | ·······</span><span·class="n">A</span><span·class="o">*</span><span·class="n">A</span><span·class="o">+</span><span·class="n">B</span><span·class="o">*</span><span·class="n">B</span><span·class="w">·</span><span·class="o">==</span><span·class="w">·</span><span·class="n">C</span><span·class="o">*</span><span·class="n">C</span><span·class="w">·</span><span·class="p"·data-group-id="4478707606-2">]</span><span·class="p">.</span></code></pre><h2·id="simplifications-with-list-comprehensions"·class="section-heading"> |
| 206 | ··<a·href="#simplifications-with-list-comprehensions"·class="hover-link"> | 206 | ··<a·href="#simplifications-with-list-comprehensions"·class="hover-link"> |
| 207 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 207 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 208 | ··</a> | 208 | ··</a> |
| 209 | ··<span·class="text">Simplifications·With·List·Comprehensions</span> | 209 | ··<span·class="text">Simplifications·With·List·Comprehensions</span> |
| 210 | </h2> | 210 | </h2> |
| 211 | <p>As·an·example,·list·comprehensions·can·be·used·to·simplify·some·of·the·functions | 211 | <p>As·an·example,·list·comprehensions·can·be·used·to·simplify·some·of·the·functions |
| 212 | in·<code·class="inline">lists.erl</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">append</span><span·class="p"·data-group-id=" | 212 | in·<code·class="inline">lists.erl</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">append</span><span·class="p"·data-group-id="4118083226-1">(</span><span·class="n">L</span><span·class="p"·data-group-id="4118083226-1">)</span><span·class="w">···</span><span·class="p">-></span><span·class="w">··</span><span·class="p"·data-group-id="4118083226-2">[</span><span·class="n">X</span><[·...·truncated·by·diffoscope;·len:·413,·SHA:·24ded1a2f5d7dc67a378d9c804c70b22da23f0735d2731e90176c0edad14a5db·...·]-2">]</span><span·class="p">.</span><span·class="w"> |
| 213 | </span><span·class="nf">map</span><span·class="p"·data-group-id=" | 213 | </span><span·class="nf">map</span><span·class="p"·data-group-id="4118083226-3">(</span><span·class="n">Fun</span><span·class="p">,</span><span·class="w">·</span><span·class="n">L</span><span·class="p"·data-group-id="4118083226-3">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·c[·...·truncated·by·diffoscope;·len:·441,·SHA:·f0b2f5e70a4fd8dd861a437e55c6cfe83157bc57ac8b918bb254a45ebfdc7ad2·...·]-4">]</span><span·class="p">.</span><span·class="w"> |
| 214 | </span><span·class="nf">filter</span><span·class="p"·data-group-id=" | 214 | </span><span·class="nf">filter</span><span·class="p"·data-group-id="4118083226-6">(</span><span·class="n">Pred</span><span·class="p">,</span><span·class="w">·</span><span·class="n">L</span><span·class="p"·data-group-id="4118083226-6">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·[·...·truncated·by·diffoscope;·len:·515,·SHA:·4fe8edee7ff77f839cccd36e571e35afdab9d710278979984b6152d0aef87a1f·...·]-7">]</span><span·class="p">.</span><span·class="w"> |
| 215 | </span><span·class="nf">zip</span><span·class="p"·data-group-id=" | 215 | </span><span·class="nf">zip</span><span·class="p"·data-group-id="4118083226-9">(</span><span·class="n">L1</span><span·class="p">,</span><span·class="w">·</span><span·class="n">L2</span><span·class="p"·data-group-id="4118083226-9">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·c[·...·truncated·by·diffoscope;·len:·674,·SHA:·470eabe4d048e35e7e2bd0c7ff3579dda3c3b10aedad3e378b430fbdbdbae59b·...·]-10">]</span><span·class="p">.</span></code></pre><h2·id="variable-bindings-in-list-comprehensions"·class="section-heading"> |
| 216 | ··<a·href="#variable-bindings-in-list-comprehensions"·class="hover-link"> | 216 | ··<a·href="#variable-bindings-in-list-comprehensions"·class="hover-link"> |
| 217 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 217 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 218 | ··</a> | 218 | ··</a> |
| 219 | ··<span·class="text">Variable·Bindings·in·List·Comprehensions</span> | 219 | ··<span·class="text">Variable·Bindings·in·List·Comprehensions</span> |
| 220 | </h2> | 220 | </h2> |
| 221 | <p>The·scope·rules·for·variables·that·occur·in·list·comprehensions·are·as·follows:</p><ul><li>All·variables·that·occur·in·a·generator·pattern·are·assumed·to·be·"fresh" | 221 | <p>The·scope·rules·for·variables·that·occur·in·list·comprehensions·are·as·follows:</p><ul><li>All·variables·that·occur·in·a·generator·pattern·are·assumed·to·be·"fresh" |
| 222 | variables.</li><li>Any·variables·that·are·defined·before·the·list·comprehension,·and·that·are | 222 | variables.</li><li>Any·variables·that·are·defined·before·the·list·comprehension,·and·that·are |
| 223 | used·in·filters,·have·the·values·they·had·before·the·list·comprehension.</li><li>Variables·cannot·be·exported·from·a·list·comprehension.</li><li>Within·a·zip·generator,·binding·of·all·variables·happen·at·the·same·time.</li></ul><p>As·an·example·of·these·rules,·suppose·you·want·to·write·the·function·<code·class="inline">select</code>, | 223 | used·in·filters,·have·the·values·they·had·before·the·list·comprehension.</li><li>Variables·cannot·be·exported·from·a·list·comprehension.</li><li>Within·a·zip·generator,·binding·of·all·variables·happen·at·the·same·time.</li></ul><p>As·an·example·of·these·rules,·suppose·you·want·to·write·the·function·<code·class="inline">select</code>, |
| 224 | which·selects·certain·elements·from·a·list·of·tuples.·Suppose·you·write | 224 | which·selects·certain·elements·from·a·list·of·tuples.·Suppose·you·write |
| 225 | <code·class="inline">select(X,·L)·->·[Y·||·{X,·Y}·<-·L].</code>·with·the·intention·of·extracting·all | 225 | <code·class="inline">select(X,·L)·->·[Y·||·{X,·Y}·<-·L].</code>·with·the·intention·of·extracting·all |
| 226 | tuples·from·<code·class="inline">L</code>,·where·the·first·item·is·<code·class="inline">X</code>.</p><p>Compiling·this·gives·the·following·diagnostic:</p><pre><code·class="text">./FileName.erl:Line:·Warning:·variable·'X'·shadowed·in·generate</code></pre><p>This·diagnostic·warns·that·the·variable·<code·class="inline">X</code>·in·the·pattern·is·not·the·same·as | 226 | tuples·from·<code·class="inline">L</code>,·where·the·first·item·is·<code·class="inline">X</code>.</p><p>Compiling·this·gives·the·following·diagnostic:</p><pre><code·class="text">./FileName.erl:Line:·Warning:·variable·'X'·shadowed·in·generate</code></pre><p>This·diagnostic·warns·that·the·variable·<code·class="inline">X</code>·in·the·pattern·is·not·the·same·as |
| 227 | the·variable·<code·class="inline">X</code>·that·occurs·in·the·function·head.</p><p>Evaluating·<code·class="inline">select</code>·gives·the·following·result:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="nf">select</span><span·class="p"·data-group-id=" | 227 | the·variable·<code·class="inline">X</code>·that·occurs·in·the·function·head.</p><p>Evaluating·<code·class="inline">select</code>·gives·the·following·result:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="nf">select</span><span·class="p"·data-group-id="3779315263-1">(</span><span·class="ss">b</span><span·class="p">,</span><span·class="p"·data-group-id="3779315263-2">[</span><span·class="p"·data-group-id="3779315263-3">{</span><span·class="ss">a</span><span·class="p">,</span><span·class="mi">1</span><span[·...·truncated·by·diffoscope;·len:·754,·SHA:·018f99c30014fa9dcb57773f01d6b07684af831f605844ad32e0881136b218ce·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 228 | </span><span·class="p"·data-group-id=" | 228 | </span><span·class="p"·data-group-id="3779315263-7">[</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">2</span><span·class="p">,</span><span·class="mi">3</span><span·class="p">,</span><span·class="mi">7</span><span·class="p"·data-group-id="3779315263-7">]</span></code></pre><p>This·is·not·the·wanted·result.·To·achieve·the·desired·effect,·<code·class="inline">select</code>·must·be |
| 229 | written·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">select</span><span·class="p"·data-group-id="0469347204-1">(</span><span·class="n">X</span><span·class="p">,</span><span·class="w">·</span><span·class="n">L</span><span·class="p"·data-group-id="0469347204-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">··</span><span·class="p"·data-group-id="0469347204-2">[</span><span·class="n">Y</span><span·class="w">·</span><span·class="p">||</span><span·class="w">·</span><span·class="p"·data-group-id="0469347204-3">{</span><span·class="n">X1</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Y</span><span·class="p"·data-group-id="0469347204-3">}</span><span·class="w">·</span><span·class="o"><-</span><span·class="w">·</span><span·class="n">L</span><span·class="p">,</span><span·class="w">·</span><span·class="n">X</span><span·class="w">·</span><span·class="o">==</span><span·class="w">·</span><span·class="n">X1</span><span·class="p"·data-group-id="0469347204-2">]</span><span·class="p">.</span></code></pre><p>The·generator·now·contains·unbound·variables·and·the·test·has·been·moved·into | ||
| 230 | the·filter.</p><p>This·now·works·as·expected:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="nf">select</span><span·class="p"·data-group-id="2746934517-1">(</span><span·class="ss">b</span><span·class="p">,</span><span·class="p"·data-group-id="2746934517-2">[</span><span·class="p"·data-group-id="2746934517-3">{</span><span·class="ss">a</span><span·class="p">,</span><span·class="mi">1</span><span·class="p"·data-group-id="2746934517-3">}</span><span·class="p">,</span><span·class="p"·data-group-id="2746934517-4">{</span><span·class="ss">b</span><span·class="p">,</span><span·class="mi">2</span><span·class="p"·data-group-id="2746934517-4">}</span><span·class="p">,</span><span·class="p"·data-group-id="2746934517-5">{</span><span·class="ss">c</span><span·class="p">,</span><span·class="mi">3</span><span·class="p"·data-group-id="2746934517-5">}</span><span·class="p">,</span><span·class="p"·data-group-id="2746934517-6">{</span><span·class="ss">b</span><span·class="p">,</span><span·class="mi">7</span><span·class="p"·data-group-id="2746934517-6">}</span><span·class="p"·data-group-id="2746934517-2">]</span><span·class="p"·data-group-id="2746934517-1">)</span><span·class="p">.</span><span·class="w"> | ||
| 231 | </span><span·class="p"·data-group-id="2746934517-7">[</span><span·class="mi">2</span><span·class="p">,</span><span·class="mi">7</span><span·class="p"·data-group-id="2746934517-7">]</span></code></pre><p>Also·note·that·a·variable·in·a·generator·pattern·will·shadow·a·variable·with·the | ||
| 232 | same·name·bound·in·a·previous·generator·pattern.·For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="p"·data-group-id="6173003519-1">[</span><span·class="p"·data-group-id="6173003519-2">{</span><span·class="n">X</span><span·class="p">,</span><span·class="n">Y</span><span·class="p"·data-group-id="6173003519-2">}</span><span·class="w">·</span><span·class="p">||</span><span·class="w">·</span><span·class="n">X</span><span·class="w">·</span><span·class="o"><-</span><span·class="w">·</span><span·class="p"·data-group-id="6173003519-3">[</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">2</span><span·class="p">,</span><span·class="mi">3</span><span·class="p"·data-group-id="6173003519-3">]</span><span·class="p">,</span><span·class="w">·</span><span·class="n">X</span><span·class="o">=</span><span·class="n">Y</span><span·class="w">·</span><span·class="o"><-</span><span·class="w">·</span><span·class="p"·data-group-id="6173003519-4">[</span><span·class="ss">a</span><span·class="p">,</span><span·class="ss">b</span><span·class="p">,</span><span·class="ss">c</span><span·class="p"·data-group-id="6173003519-4">]</span><span·class="p"·data-group-id="6173003519-1">]</span><span·class="p">.</span><span·class="w"> | ||
| 233 | </ | 229 | written·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">select</span><span·class="p"·data-group-id="1839774881-1">(</span><span·class="n">X</span><span·class="p">,</span><span·class="w">·</span><span·class="n">L</span><span·[·...·truncated·by·diffoscope;·len:·917,·SHA:·b1a2b701eb4c46328135333dcfdaf7914f3bdd6f5f2a3b560b3ad8214268b8aa·...·] |
| 230 | the·filter.</p><p>This·now·works·as·expected:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="nf">select</span><span·class="p"·data-group-id="4619835120-1">(</span><span·class="ss">b</span><span·class="p">,</span><span·class="p"·data-group-id="4619835120-2">[</span><span·class="p"·data-group-id="4619835120-3">{</span><span·class="ss">a</span><span·class="p">,</span><span·class="mi">1</span><span·class="p"·data-group-id="4619835120-3">}</span><span·class="p">,</span><span·class="p"·data-group-id="4619835120-4">{</span><span·class="ss">b</span><span·class="p">,</span><span·class="mi">2</span><span·class="p"·data-group-id="4619835120-4">}</span><span·class="p">,</span><span·class="p"·data-group-id="4619835120-5">{</span><span·class="ss">c</span><span·class="p">,</span><span·class="mi">3</span><span·class="p"·data-group-id="4619835120-5">}</span><span·class="p">,</span><span·class="p"·data-group-id="4619835120-6">{</span><span·class="ss">b</span><span·class="p">,</span><span·class="mi">7</span><span·class="p"·data-group-id="4619835120-6">}</span><span·class="p"·data-group-id="4619835120-2">]</span><span·class="p"·data-group-id="4619835120-1">)</span><span·class="p">.</span><span·class="w"> | ||
| 231 | </span><span·class="p"·data-group-id="4619835120-7">[</span><span·class="mi">2</span><span·class="p">,</span><span·class="mi">7</span><span·class="p"·data-group-id="4619835120-7">]</span></code></pre><p>Also·note·that·a·variable·in·a·generator·pattern·will·shadow·a·variable·with·the | ||
| 232 | same·name·bound·in·a·previous·generator·pattern.·For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="p"·data-group-id="9804478070-1">[</span><span·class="p"·data-group-id="9804478070-2">{</span><span·class="n">X</span><span·class="p">,</span><span·class="n">Y</span><span·class="p"·data-group-id="9804478070-2">}</span><span·class="w">·</span><span·class="p">||</span><span·class="w">·</span><span·class="n">X</span><span·class="w">·</span><span·class="o"><-</span><span·class="w">·</span><span·class="p"·data-group-id="9804478070-3">[</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">2</span><span·class="p">,</span><span·class="mi">3</span><span·class="p"·data-group-id="9804478070-3">]</span><span·class="p">,</span><span·class="w">·</span><span·class="n">X</span><span·class="o">=</span><span·class="n">Y</span><span·class="w">·</span><span·class="o"><-</span><span·class="w">·</span><span·class="p"·data-group-id="9804478070-4">[</span><span·class="ss">a</span><span·class="p">,</span><span·class="ss">b</span><span·class="p">,</span><span·class="ss">c</span><span·class="p"·data-group-id="9804478070-4">]</span><span·class="p"·data-group-id="9804478070-1">]</span><span·class="p">.</span><span·class="w"> | ||
| 233 | </span><span·class="p"·data-group-id="9804478070-5">[</span><span·class="p"·data-group-id="9804478070-6">{</span><span·class="ss">a</span><span·class="p">,</span><span·class="ss">a</span><span·class="p"·data-group-id="9804478070-6">}</span><span·class="p">,</span><span·class="p"·data-group-id="9804478070-7">{</span><span·class="ss">b</span><span·class="p">,</span><span·class="ss">b</span><span·class="p"·data-group-id="9804478070-7">}</span><span·class="p">,</span><span·class="p"·data-group-id="9804478070-8">{</span><span·class="ss">c</span><span·class="p">,</span><span·class="ss">c</span><span·class="p"·data-group-id="9804478070-8">}</span><span·class="p">,</span><span·class="p"·data-group-id="9804478070-9">{</span><span·class="ss">a</span><span·class="p">,</span><span·class="ss">a</span><span·class="p"·data-group-id="9804478070-9">}</span><span·class="p">,</span><span·class="p"·data-group-id="9804478070-10">{</span><span·class="ss">b</span><span·class="p">,</span><span·class="ss">b</span><span·class="p"·data-group-id="9804478070-10">}</span><span·class="p">,</span><span·class="p"·data-group-id="9804478070-11">{</span><span·class="ss">c</span><span·class="p">,</span><span·class="ss">c</span><span·class="p"·data-group-id="9804478070-11">}</span><span·class="p">,</span><span·class="p"·data-group-id="9804478070-12">{</span><span·class="ss">a</span><span·class="p">,</span><span·class="ss">a</span><span·class="p"·data-group-id="9804478070-12">}</span><span·class="p">,</span><span·class="p"·data-group-id="9804478070-13">{</span><span·class="ss">b</span><span·class="p">,</span><span·class="ss">b</span><span·class="p"·data-group-id="9804478070-13">}</span><span·class="p">,</span><span·class="p"·data-group-id="9804478070-14">{</span><span·class="ss">c</span><span·class="p">,</span><span·class="ss">c</span><span·class="p"·data-group-id="9804478070-14">}</span><span·class="p"·data-group-id="9804478070-5">]</span></code></pre><p>A·consequence·of·the·rules·for·importing·variables·into·a·list·comprehensions·is | ||
| 234 | that·certain·pattern·matching·operations·must·be·moved·into·the·filters·and | 234 | that·certain·pattern·matching·operations·must·be·moved·into·the·filters·and |
| 235 | cannot·be·written·directly·in·the·generators.</p><p>To·illustrate·this,·do·<em>not</em>·write·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">f</span><span·class="p"·data-group-id=" | 235 | cannot·be·written·directly·in·the·generators.</p><p>To·illustrate·this,·do·<em>not</em>·write·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">f</span><span·class="p"·data-group-id="3288538202-1">(</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p"·data-group-id="3288538202-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 236 | ····</span><span·class="n">Y</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> | 236 | ····</span><span·class="n">Y</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> |
| 237 | ····</span><span·class="p"·data-group-id=" | 237 | ····</span><span·class="p"·data-group-id="3288538202-2">[</span><span·class="w">·</span><span·class="n">Expression</span><span·class="w">·</span><span·class="p">||</span><span·class="w">·</span><span·class="n">PatternInvolving</span><span·class="w">·</span><span·class="n">Y</span><span·class="w">·[·...·truncated·by·diffoscope;·len:·248,·SHA:·8a0534ae24e247fd0ddbf2b5d26a1f12e785e75b5ec55286401458aae5cd1177·...·]-2">]</span><span·class="w"> |
| 238 | ····</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span></code></pre><p>Instead,·write·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">f</span><span·class="p"·data-group-id=" | 238 | ····</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span></code></pre><p>Instead,·write·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">f</span><span·class="p"·data-group-id="0266790477-1">(</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p"·data-group-id="0266790477-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 239 | ····</span><span·class="n">Y</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> | 239 | ····</span><span·class="n">Y</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> |
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| 120 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 120 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 121 | ··</a> | 121 | ··</a> |
| 122 | ··<span·class="text">Creating·a·List</span> | 122 | ··<span·class="text">Creating·a·List</span> |
| 123 | </h2> | 123 | </h2> |
| 124 | <p>Lists·can·only·be·built·starting·from·the·end·and·attaching·list·elements·at·the | 124 | <p>Lists·can·only·be·built·starting·from·the·end·and·attaching·list·elements·at·the |
| 125 | beginning.·If·you·use·the·<code·class="inline">++</code>·operator·as·follows,·a·new·list·is·created·that | 125 | beginning.·If·you·use·the·<code·class="inline">++</code>·operator·as·follows,·a·new·list·is·created·that |
| 126 | is·a·copy·of·the·elements·in·<code·class="inline">List1</code>,·followed·by·<code·class="inline">List2</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">List1</span><span·class="w">·</span><span·class="o">++</span><span·class="w">·</span><span·class="n">List2</span></code></pre><p>Looking·at·how·<a·href="../../lib/stdlib-7.0/doc/html/lists.html#append/2"><code·class="inline">lists:append/2</code></a>·or·<code·class="inline">++</code>·would·be·implemented·in·plain·Erlang, | 126 | is·a·copy·of·the·elements·in·<code·class="inline">List1</code>,·followed·by·<code·class="inline">List2</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">List1</span><span·class="w">·</span><span·class="o">++</span><span·class="w">·</span><span·class="n">List2</span></code></pre><p>Looking·at·how·<a·href="../../lib/stdlib-7.0/doc/html/lists.html#append/2"><code·class="inline">lists:append/2</code></a>·or·<code·class="inline">++</code>·would·be·implemented·in·plain·Erlang, |
| 127 | clearly·the·first·list·is·copied:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">append</span><span·class="p"·data-group-id=" | 127 | clearly·the·first·list·is·copied:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">append</span><span·class="p"·data-group-id="4199447379-1">(</span><span·class="p"·data-group-id="4199447379-2">[</span><span·class="n">H</span><span·class="p">|</span><span·class="n">T</span><span·class="p"·data-group-id="4199447379-2">]</span><span·class="p">,</span><span·class="w">·</span><span·cl[·...·truncated·by·diffoscope;·len:·60,·SHA:·bffe254ece73da3f54db41e20add0dd40566f7929b1953be49c01aa7143e618e·...·]-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 128 | ····</span><span·class="p"·data-group-id=" | 128 | ····</span><span·class="p"·data-group-id="4199447379-3">[</span><span·class="n">H</span><span·class="p">|</span><span·class="nf">append</span><span·class="p"·data-group-id="4199447379-4">(</span><span·class="n">T</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Tail</span><spa[·...·truncated·by·diffoscope;·len:·90,·SHA:·c3cb9c30271d98c9279aded3335e89bcf9369fefa977cd32cd4d0031859d4797·...·]-3">]</span><span·class="p">;</span><span·class="w"> |
| 129 | </span><span·class="nf">append</span><span·class="p"·data-group-id=" | 129 | </span><span·class="nf">append</span><span·class="p"·data-group-id="4199447379-5">(</span><span·class="p"·data-group-id="4199447379-6">[</span><span·class="p"·data-group-id="4199447379-6">]</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Tail</span><span·class="p"·data-group-id="4199447379-5">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 130 | ····</span><span·class="n">Tail</span><span·class="p">.</span></code></pre><p>When·recursing·and·building·a·list,·it·is·important·to·ensure·that·you·attach | 130 | ····</span><span·class="n">Tail</span><span·class="p">.</span></code></pre><p>When·recursing·and·building·a·list,·it·is·important·to·ensure·that·you·attach |
| 131 | the·new·elements·to·the·beginning·of·the·list.·In·this·way,·you·will·build·<em>one</em> | 131 | the·new·elements·to·the·beginning·of·the·list.·In·this·way,·you·will·build·<em>one</em> |
| 132 | list,·not·hundreds·or·thousands·of·copies·of·the·growing·result·list.</p><p>Let·us·first·see·how·it·is·not·to·be·done:</p><p><strong>DO·NOT</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">bad_fib</span><span·class="p"·data-group-id=" | 132 | list,·not·hundreds·or·thousands·of·copies·of·the·growing·result·list.</p><p>Let·us·first·see·how·it·is·not·to·be·done:</p><p><strong>DO·NOT</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">bad_fib</span><span·class="p"·data-group-id="4647734108-1">(</span><span·class="n">N</span><span·class="p"·data-group-id="4647734108-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 133 | ····</span><span·class="nf">bad_fib</span><span·class="p"·data-group-id=" | 133 | ····</span><span·class="nf">bad_fib</span><span·class="p"·data-group-id="4647734108-2">(</span><span·class="n">N</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">0</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·[·...·truncated·by·diffoscope;·len:·131,·SHA:·2148d2d3c382857af6a8a8cc5c2a4bfb6ead58a24e0786619bef56e2db6db4a0·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 134 | </span><span·class="nf">bad_fib</span><span·class="p"·data-group-id=" | 134 | </span><span·class="nf">bad_fib</span><span·class="p"·data-group-id="4647734108-4">(</span><span·class="mi">0</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="n">Current</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="n">Next</span><span·cl[·...·truncated·by·diffoscope;·len:·108,·SHA:·da24c4a9f700094362f02b64d438a081e9f557838e68090a4fd018f0431716d9·...·]-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 135 | ····</span><span·class="n">Fibs</span><span·class="p">;</span><span·class="w"> | 135 | ····</span><span·class="n">Fibs</span><span·class="p">;</span><span·class="w"> |
| 136 | </span><span·class="nf">bad_fib</span><span·class="p"·data-group-id=" | 136 | </span><span·class="nf">bad_fib</span><span·class="p"·data-group-id="4647734108-5">(</span><span·class="n">N</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Current</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Next</span><span·class="p">,</span><span·class="w">·</span><span·cla[·...·truncated·by·diffoscope;·len:·59,·SHA:·2cf7fcf0bdad492e7c9dc5e5eb88aa980e87ba3ec3a3a9bd2f0d25f4948abcdc·...·]-5">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 137 | ····</span><span·class="nf">bad_fib</span><span·class="p"·data-group-id=" | 137 | ····</span><span·class="nf">bad_fib</span><span·class="p"·data-group-id="4647734108-6">(</span><span·class="n">N</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Next</span><span·class="p">,</span><span·class="w[·...·truncated·by·diffoscope;·len:·464,·SHA:·2b77310aae354f00b229afc83da66fb2e307ac2f086c16abaa460da3b285bc99·...·]-6">)</span><span·class="p">.</span></code></pre><p>Here·more·than·one·list·is·built.·In·each·iteration·step·a·new·list·is·created |
| 138 | that·is·one·element·longer·than·the·new·previous·list.</p><p>To·avoid·copying·the·result·in·each·iteration,·build·the·list·in·reverse·order | 138 | that·is·one·element·longer·than·the·new·previous·list.</p><p>To·avoid·copying·the·result·in·each·iteration,·build·the·list·in·reverse·order |
| 139 | and·reverse·the·list·when·you·are·done:</p><p><strong>DO</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">tail_recursive_fib</span><span·class="p"·data-group-id=" | 139 | and·reverse·the·list·when·you·are·done:</p><p><strong>DO</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">tail_recursive_fib</span><span·class="p"·data-group-id="1082836623-1">(</span><span·class="n">N</span><span·class="p"·data-group-id="1082836623-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 140 | ····</span><span·class="nf">tail_recursive_fib</span><span·class="p"·data-group-id=" | 140 | ····</span><span·class="nf">tail_recursive_fib</span><span·class="p"·data-group-id="1082836623-2">(</span><span·class="n">N</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">0</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·[·...·truncated·by·diffoscope;·len:·130,·SHA:·a4199f21d11826b8e56752c14e503030cb1fd47eaaa7b32dc4df8bbe28d5d6c2·...·]3-2">)</span><span·class="p">.</span><span·class="w"> |
| 141 | </span><span·class="nf">tail_recursive_fib</span><span·class="p"·data-group-id=" | 141 | </span><span·class="nf">tail_recursive_fib</span><span·class="p"·data-group-id="1082836623-4">(</span><span·class="mi">0</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="n">Current</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="n">Next</span><span·cl[·...·truncated·by·diffoscope;·len:·107,·SHA:·6cab9badebbe13e6eff7f62457f7ba088a49542405dafc2e57c7618a2e549fc5·...·]3-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 142 | ····</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">reverse</span><span·class="p"·data-group-id=" | 142 | ····</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">reverse</span><span·class="p"·data-group-id="1082836623-5">(</span><span·class="n">Fibs</span><span·class="p"·data-group-id="1082836623-5">)</span><span·class="p">;</span><span·class="w"> |
| 143 | </span><span·class="nf">tail_recursive_fib</span><span·class="p"·data-group-id=" | 143 | </span><span·class="nf">tail_recursive_fib</span><span·class="p"·data-group-id="1082836623-6">(</span><span·class="n">N</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Current</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Next</span><span·class="p">,</span><span·class="w">·</span><span·cla[·...·truncated·by·diffoscope;·len:·58,·SHA:·72d5b262493d5f71f26eea98be9cf75898222ee81ec6c8513ab159132e2e7528·...·]3-6">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 144 | ····</span><span·class="nf">tail_recursive_fib</span><span·class="p"·data-group-id=" | 144 | ····</span><span·class="nf">tail_recursive_fib</span><span·class="p"·data-group-id="1082836623-7">(</span><span·class="n">N</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Next</span><span·class="p">,</span><span·class="w[·...·truncated·by·diffoscope;·len:·414,·SHA:·880e510417fcef2b49399d18befc906a3338de9135a9d732e4409dcd2b394726·...·]3-7">)</span><span·class="p">.</span></code></pre><h2·id="list-comprehensions"·class="section-heading"> |
| 145 | ··<a·href="#list-comprehensions"·class="hover-link"> | 145 | ··<a·href="#list-comprehensions"·class="hover-link"> |
| 146 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 146 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 147 | ··</a> | 147 | ··</a> |
| 148 | ··<span·class="text">List·Comprehensions</span> | 148 | ··<span·class="text">List·Comprehensions</span> |
| 149 | </h2> | 149 | </h2> |
| 150 | <p>A·list·comprehension:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 150 | <p>A·list·comprehension:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="4305200139-1">[</span><span·class="n">Expr</span><span·class="p"·data-group-id="4305200139-2">(</span><span·class="n">E</span><span·class="p"·data-group-id="4305200139-2">)</span><span·class="w">·</span><span·class="p">||</span><span·class="w">·</span><spa[·...·truncated·by·diffoscope;·len:·676,·SHA:·73e996b8efa9ff25befb1e08e763957dd357b3c02943b1630f1d72e2f3b516ef·...·]-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 151 | ····</span><span·class="p"·data-group-id="4 | 151 | ····</span><span·class="p"·data-group-id="4937240563-3">[</span><span·class="n">Expr</span><span·class="p"·data-group-id="4937240563-4">(</span><span·class="n">E</span><span·class="p"·data-group-id="4937240563-4">)</span><span·class="p">|</span><span·class="nf">'lc^0'</span><span·class="p"·[·...·truncated·by·diffoscope;·len:·233,·SHA:·3320e50cd63444cdfd8823be904b5af5239d138d33ca3f8765f0dfbfea1b01d7·...·]-3">]</span><span·class="p">;</span><span·class="w"> |
| 152 | </span><span·class="nf">'lc^0'</span><span·class="p"·data-group-id="4 | 152 | </span><span·class="nf">'lc^0'</span><span·class="p"·data-group-id="4937240563-6">(</span><span·class="p"·data-group-id="4937240563-7">[</span><span·class="p"·data-group-id="4937240563-7">]</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="n">Expr</span><span·class="p"·data-group-id=[·...·truncated·by·diffoscope;·len:·193,·SHA:·8edf2cf1f3fffe02280e2e481e27c708ba94e21c6d7f2e3f97b310aba5773417·...·]-8">]</span><span·class="p">.</span></code></pre><p>If·the·result·of·the·list·comprehension·will·<em>obviously</em>·not·be·used,·a·list |
| 153 | will·not·be·constructed.·For·example,·in·this·code:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 153 | will·not·be·constructed.·For·example,·in·this·code:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="6164525422-1">[</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">put_chars</span><span·class="p"·data-group-id="6164525422-2">(</span><span·class="n">E</span><span·class="p"·data-group-id="6164525422-2">)</span><span·class="w">·</sp[·...·truncated·by·diffoscope;·len:·220,·SHA:·9cc641e945e4258241dcff2eb790f4b08ab2f83f5ab25b77414ab06cf75a6f07·...·]-1">]</span><span·class="p">,</span><span·class="w"> |
| 154 | </span><span·class="ss">ok</span><span·class="p">.</span></code></pre><p>or·in·this·code:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="k">case</span><span·class="w">·</span><span·class="n">Var</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> | 154 | </span><span·class="ss">ok</span><span·class="p">.</span></code></pre><p>or·in·this·code:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="k">case</span><span·class="w">·</span><span·class="n">Var</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 155 | ····</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 155 | ····</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 156 | ········</span><span·class="p"·data-group-id=" | 156 | ········</span><span·class="p"·data-group-id="6997846511-1">[</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">put_chars</span><span·class="p"·data-group-id="6997846511-2">(</span><span·class="n">E</span><span·class="p"·data-group-id="6997846511-2">)</span><span·class="w">·</sp[·...·truncated·by·diffoscope;·len:·220,·SHA:·ab35b18f320f5b8f7801eb83e9776e00098a3a99ad4c755bee3c50a540c08d26·...·]-1">]</span><span·class="p">;</span><span·class="w"> |
| 157 | ····</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 157 | ····</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 158 | </span><span·class="k">end</span><span·class="p">,</span><span·class="w"> | 158 | </span><span·class="k">end</span><span·class="p">,</span><span·class="w"> |
| 159 | </span><span·class="nf">some_function</span><span·class="p"·data-group-id=" | 159 | </span><span·class="nf">some_function</span><span·class="p"·data-group-id="6997846511-3">(</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p"·data-group-id="6997846511-3">)</span><span·class="p">,</span></code></pre><p>the·value·is·not·assigned·to·a·variable,·not·passed·to·another·function,·and·not |
| 160 | returned.·This·means·that·there·is·no·need·to·construct·a·list·and·the·compiler | 160 | returned.·This·means·that·there·is·no·need·to·construct·a·list·and·the·compiler |
| 161 | will·simplify·the·code·for·the·list·comprehension·to:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">'lc^0'</span><span·class="p"·data-group-id=" | 161 | will·simplify·the·code·for·the·list·comprehension·to:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">'lc^0'</span><span·class="p"·data-group-id="2833815840-1">(</span><span·class="p"·data-group-id="2833815840-2">[</span><span·class="n">E</span><span·class="p">|</span><span·class="n">Tail</span><span·class="p"·data-group-id="2833815840-2">]</span><span·class="p">,</span><span·class="w">·</span><span[·...·truncated·by·diffoscope;·len:·63,·SHA:·8e8ef8000335c8e9485a3e609586cefe48f4c068ad0b5c13de2b11e50bc3f13f·...·]-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 162 | ····</span><span·class="n">Expr</span><span·class="p"·data-group-id=" | 162 | ····</span><span·class="n">Expr</span><span·class="p"·data-group-id="2833815840-3">(</span><span·class="n">E</span><span·class="p"·data-group-id="2833815840-3">)</span><span·class="p">,</span><span·class="w"> |
| 163 | ····</span><span·class="nf">'lc^0'</span><span·class="p"·data-group-id=" | 163 | ····</span><span·class="nf">'lc^0'</span><span·class="p"·data-group-id="2833815840-4">(</span><span·class="n">Tail</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Expr</span><span·class="p"·data-group-id="2833815840-4">)</span><span·class="p">;</span><span·class="w"> |
| 164 | </span><span·class="nf">'lc^0'</span><span·class="p"·data-group-id="4052748827-5">(</span><span·class="p"·data-group-id="4052748827-6">[</span><span·class="p"·data-group-id="4052748827-6">]</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="n">Expr</span><span·class="p"·data-group-id="4052748827-5">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="p"·data-group-id="4052748827-7">[</span><span·class="p"·data-group-id="4052748827-7">]</span><span·class="p">.</span></code></pre><p>The·compiler·also·understands·that·assigning·to·<code·class="inline">_</code>·means·that·the·value·will | ||
| 165 | 164 | </span><span·class="nf">'lc^0'</span><span·class="p"·data-group-id="2833815840-5">(</span><span·class="p"·data-group-id="2833815840-6">[</span><span·class="p"·data-group-id="2833815840-6">]</span><span·class="p">,</span><span·class="w">·</span><spa[·...·truncated·by·diffoscope;·len:·425,·SHA:·ab2f2016c4adbbbf64581280421947d842fe38bb6215027527ed7361e0bbc07f·...·] | |
| 165 | not·be·used.·Therefore,·the·code·in·the·following·example·will·also·be·optimized:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">_</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="9018055584-1">[</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">put_chars</span><span·class="p"·data-group-id="9018055584-2">(</span><span·class="n">E</span><span·class="p"·data-group-id="9018055584-2">)</span><span·class="w">·</span><span·class="p">||</span><span·class="w">·</span><span·class="n">E</span><span·class="w">·</span><span·class="o"><-</span><span·class="w">·</span><span·class="n">List</span><span·class="p"·data-group-id="9018055584-1">]</span><span·class="p">,</span><span·class="w"> | ||
| 166 | </span><span·class="ss">ok</span><span·class="p">.</span></code></pre><h2·id="deep-and-flat-lists"·class="section-heading"> | 166 | </span><span·class="ss">ok</span><span·class="p">.</span></code></pre><h2·id="deep-and-flat-lists"·class="section-heading"> |
| 167 | ··<a·href="#deep-and-flat-lists"·class="hover-link"> | 167 | ··<a·href="#deep-and-flat-lists"·class="hover-link"> |
| 168 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 168 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 169 | ··</a> | 169 | ··</a> |
| 170 | ··<span·class="text">Deep·and·Flat·Lists</span> | 170 | ··<span·class="text">Deep·and·Flat·Lists</span> |
| 171 | </h2> | 171 | </h2> |
| 172 | <p><a·href="../../lib/stdlib-7.0/doc/html/lists.html#flatten/1"><code·class="inline">lists:flatten/1</code></a>·builds·an·entirely·new·list.·It·is·therefore·expensive,·and | 172 | <p><a·href="../../lib/stdlib-7.0/doc/html/lists.html#flatten/1"><code·class="inline">lists:flatten/1</code></a>·builds·an·entirely·new·list.·It·is·therefore·expensive,·and |
| 173 | even·<em>more</em>·expensive·than·the·<code·class="inline">++</code>·operator·(which·copies·its·left·argument, | 173 | even·<em>more</em>·expensive·than·the·<code·class="inline">++</code>·operator·(which·copies·its·left·argument, |
| 174 | but·not·its·right·argument).</p><p>In·the·following·situations·it·is·unnecessary·to·call·<a·href="../../lib/stdlib-7.0/doc/html/lists.html#flatten/1"><code·class="inline">lists:flatten/1</code></a>:</p><ul><li>When·sending·data·to·a·port.·Ports·understand·deep·lists·so·there·is·no·reason | 174 | but·not·its·right·argument).</p><p>In·the·following·situations·it·is·unnecessary·to·call·<a·href="../../lib/stdlib-7.0/doc/html/lists.html#flatten/1"><code·class="inline">lists:flatten/1</code></a>:</p><ul><li>When·sending·data·to·a·port.·Ports·understand·deep·lists·so·there·is·no·reason |
| 175 | to·flatten·the·list·before·sending·it·to·the·port.</li><li>When·calling·BIFs·that·accept·deep·lists,·such·as | 175 | to·flatten·the·list·before·sending·it·to·the·port.</li><li>When·calling·BIFs·that·accept·deep·lists,·such·as |
| 176 | <a·href="../../erts-16.0/doc/html/erlang.html#list_to_binary/1"><code·class="inline">list_to_binary/1</code></a>·or | 176 | <a·href="../../erts-16.0/doc/html/erlang.html#list_to_binary/1"><code·class="inline">list_to_binary/1</code></a>·or |
| 177 | <a·href="../../erts-16.0/doc/html/erlang.html#iolist_to_binary/1"><code·class="inline">iolist_to_binary/1</code></a>.</li><li>When·you·know·that·your·list·is·only·one·level·deep.·Use·<a·href="../../lib/stdlib-7.0/doc/html/lists.html#append/1"><code·class="inline">lists:append/1</code></a> | 177 | <a·href="../../erts-16.0/doc/html/erlang.html#iolist_to_binary/1"><code·class="inline">iolist_to_binary/1</code></a>.</li><li>When·you·know·that·your·list·is·only·one·level·deep.·Use·<a·href="../../lib/stdlib-7.0/doc/html/lists.html#append/1"><code·class="inline">lists:append/1</code></a> |
| 178 | instead.</li></ul><p><em>Examples:</em></p><p><strong>DO</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">port_command</span><span·class="p"·data-group-id=" | 178 | instead.</li></ul><p><em>Examples:</em></p><p><strong>DO</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">port_command</span><span·class="p"·data-group-id="2246444354-1">(</span><span·class="n">Port</span><span·class="p">,</span><span·class="w">·</span><span·class="n">DeepList</span><span·class="p"·data-group-id="2246444354-1">)</span></code></pre><p><strong>DO·NOT</strong></p><pre><code·class="makeup·erlang"[·...·truncated·by·diffoscope;·len:·954,·SHA:·35f8753f4cdf766a1a96db0df3b07fb0dd19fbaa3c1a5d23deef2244fabc6c70·...·]-1">]</span><span·class="p">,</span><span·class="w"> |
| 179 | </span><span·class="nf">port_command</span><span·class="p"·data-group-id=" | 179 | </span><span·class="nf">port_command</span><span·class="p"·data-group-id="4236841053-2">(</span><span·class="n">Port</span><span·class="p">,</span><span·class="w">·</span><span·class="n">TerminatedStr</span><span·class="p"·data-group-id="4236841053-2">)</span></code></pre><p>Instead:</p><p><strong>DO</strong></p><pre><code·class[·...·truncated·by·diffoscope;·len:·336,·SHA:·ac69f39485385c99aef25bac7e3a8c200aa1e9bd5a7a9681d5ed6488a2bfe393·...·]-1">]</span><span·class="p">,</span><span·class="w"> |
| 180 | </span><span·class="nf">port_command</span><span·class="p"·data-group-id=" | 180 | </span><span·class="nf">port_command</span><span·class="p"·data-group-id="9458449600-2">(</span><span·class="n">Port</span><span·class="p">,</span><span·class="w">·</span><span·class="n">TerminatedStr</span><span·class="p"·data-group-id="9458449600-2">)</span></code></pre><p><strong>DO</strong></p><pre><code·class="makeup·erlang[·...·truncated·by·diffoscope;·len:·832,·SHA:·127420fc2ed81144a29860514dbadbb361a6da8652ab48c961545bee50a05b9c·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 181 | </span><span·class="p"·data-group-id=" | 181 | </span><span·class="p"·data-group-id="5846422364-6">[</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">2</span><span·class="p">,</span><span·class="mi">3</span><span·class="p"·data-group-id="5846422364-6">]</span></code></pre><p><strong>DO·NOT</strong></p><pre><code·clas[·...·truncated·by·diffoscope;·len:·849,·SHA:·d294baabe424fd5618ebb3c03e0ded684526c4ee9835d27246e72319c1bb20e6·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 182 | </span><span·class="p"·data-group-id="7 | 182 | </span><span·class="p"·data-group-id="2757025490-6">[</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">2</span><span·class="p">,</span><span·class="mi">3</span><span·class="p"·data-group-id="2757025490-6">]</span></code></pre><h2·id="recursive-list-functions"·class="section-heading"> |
| 183 | ··<a·href="#recursive-list-functions"·class="hover-link"> | 183 | ··<a·href="#recursive-list-functions"·class="hover-link"> |
| 184 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 184 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 185 | ··</a> | 185 | ··</a> |
| 186 | ··<span·class="text">Recursive·List·Functions</span> | 186 | ··<span·class="text">Recursive·List·Functions</span> |
| 187 | </h2> | 187 | </h2> |
| 188 | <p>There·are·two·basic·ways·to·write·a·function·that·traverses·a·list·and | 188 | <p>There·are·two·basic·ways·to·write·a·function·that·traverses·a·list·and |
| 189 | produces·a·new·list.</p><p>The·first·way·is·writing·a·<em>body-recursive</em>·function:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%%·Add·42·to·each·integer·in·the·list.</span><span·class="w"> | 189 | produces·a·new·list.</p><p>The·first·way·is·writing·a·<em>body-recursive</em>·function:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%%·Add·42·to·each·integer·in·the·list.</span><span·class="w"> |
| 190 | </span><span·class="nf">add_42_body</span><span·class="p"·data-group-id=" | 190 | </span><span·class="nf">add_42_body</span><span·class="p"·data-group-id="5816665202-1">(</span><span·class="p"·data-group-id="5816665202-2">[</span><span·class="n">H</span><span·class="p">|</span><span·class="n">T</span><span·class="p"·data-group-id="5816665202-2">]</span><span·class="p"·data-group-id="5816665202-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 191 | ····</span><span·class="p"·data-group-id=" | 191 | ····</span><span·class="p"·data-group-id="5816665202-3">[</span><span·class="n">H</span><span·class="w">·</span><span·class="o">+</span><span·class="w">·</span><span·class="mi">42</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="nf">add_42_body</span><span[·...·truncated·by·diffoscope;·len:·166,·SHA:·e2eb2dbca64145eaf484a76e89399cdfb9b3eb7611bbfe038a1bdfecb337c8bc·...·]-3">]</span><span·class="p">;</span><span·class="w"> |
| 192 | </span><span·class="nf">add_42_body</span><span·class="p"·data-group-id=" | 192 | </span><span·class="nf">add_42_body</span><span·class="p"·data-group-id="5816665202-5">(</span><span·class="p"·data-group-id="5816665202-6">[</span><span·class="p"·data-group-id="5816665202-6">]</span><span·class="p"·data-group-id="5816665202-5">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 193 | ····</span><span·class="p"·data-group-id=" | 193 | ····</span><span·class="p"·data-group-id="5816665202-7">[</span><span·class="p"·data-group-id="5816665202-7">]</span><span·class="p">.</span></code></pre><p>The·second·way·is·writing·a·<em>tail-recursive</em>·function:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%%·Add·42·to·each·integer·in·the·list.</span><span·class="w"> |
| 194 | </span><span·class="nf">add_42_tail</span><span·class="p"·data-group-id=" | 194 | </span><span·class="nf">add_42_tail</span><span·class="p"·data-group-id="6323172079-1">(</span><span·class="n">List</span><span·class="p"·data-group-id="6323172079-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 195 | ····</span><span·class="nf">add_42_tail</span><span·class="p"·data-group-id=" | 195 | ····</span><span·class="nf">add_42_tail</span><span·class="p"·data-group-id="6323172079-2">(</span><span·class="n">List</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6323172079-3">[</span><span·class="p"·data-group-id="6323172079-3">]</span><span·class="p"·data-group-id="6323172079-2">)</span><span·class="p">.</span><span·class="w"> |
| 196 | </span><span·class="nf">add_42_tail</span><span·class="p"·data-group-id=" | 196 | </span><span·class="nf">add_42_tail</span><span·class="p"·data-group-id="6323172079-4">(</span><span·class="p"·data-group-id="6323172079-5">[</span><span·class="n">H</span><span·class="p">|</span><span·class="n">T</span><span·class="p"·data-group-id="6323172079-5">]</span><span·class="p">,</span><span·class="w">·</span><span·cl[·...·truncated·by·diffoscope;·len:·59,·SHA:·0ac003cec75f8266c7bf2a7848c495cf4b8a67b2b8ca9fd35392e905d461efc5·...·]-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 197 | ····</span><span·class="nf">add_42_tail</span><span·class="p"·data-group-id=" | 197 | ····</span><span·class="nf">add_42_tail</span><span·class="p"·data-group-id="6323172079-6">(</span><span·class="n">T</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6323172079-7">[</span><span·class="n">H</span><span·class="w">·</span><span·class="o">+</span><span·class="w">·</span><span·class="[·...·truncated·by·diffoscope;·len:·205,·SHA:·f5ebfba135f17fa06da292785e38609ca0c96360244c9627f7cb86761c5e3a31·...·]-6">)</span><span·class="p">;</span><span·class="w"> |
| 198 | </span><span·class="nf">add_42_tail</span><span·class="p"·data-group-id=" | 198 | </span><span·class="nf">add_42_tail</span><span·class="p"·data-group-id="6323172079-8">(</span><span·class="p"·data-group-id="6323172079-9">[</span><span·class="p"·data-group-id="6323172079-9">]</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Acc</span><span·class="p"·data-group-id="6323172079-8">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 199 | ····</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">reverse</span><span·class="p"·data-group-id=" | 199 | ····</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">reverse</span><span·class="p"·data-group-id="6323172079-10">(</span><span·class="n">Acc</span><span·class="p"·data-group-id="6323172079-10">)</span><span·class="p">.</span></code></pre><p>In·early·version·of·Erlang·the·tail-recursive·function·would·typically |
| 200 | be·more·efficient.·In·modern·versions·of·Erlang,·there·is·usually·not | 200 | be·more·efficient.·In·modern·versions·of·Erlang,·there·is·usually·not |
| 201 | much·difference·in·performance·between·a·body-recursive·list·function·and | 201 | much·difference·in·performance·between·a·body-recursive·list·function·and |
| 202 | tail-recursive·function·that·reverses·the·list·at·the·end.·Therefore, | 202 | tail-recursive·function·that·reverses·the·list·at·the·end.·Therefore, |
| 203 | concentrate·on·writing·beautiful·code·and·forget·about·the·performance | 203 | concentrate·on·writing·beautiful·code·and·forget·about·the·performance |
| 204 | of·your·list·functions.·In·the·time-critical·parts·of·your·code, | 204 | of·your·list·functions.·In·the·time-critical·parts·of·your·code, |
| 205 | <em>measure</em>·before·rewriting·your·code.</p><p>For·a·thorough·discussion·about·tail·and·body·recursion,·see | 205 | <em>measure</em>·before·rewriting·your·code.</p><p>For·a·thorough·discussion·about·tail·and·body·recursion,·see |
| 206 | <a·href="http://ferd.ca/erlang-s-tail-recursion-is-not-a-silver-bullet.html">Erlang's·Tail·Recursion·is·Not·a·Silver·Bullet</a>.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>This·section·is·about·list·functions·that·<em>construct</em>·lists.·A·tail-recursive | 206 | <a·href="http://ferd.ca/erlang-s-tail-recursion-is-not-a-silver-bullet.html">Erlang's·Tail·Recursion·is·Not·a·Silver·Bullet</a>.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>This·section·is·about·list·functions·that·<em>construct</em>·lists.·A·tail-recursive |
| 207 | function·that·does·not·construct·a·list·runs·in·constant·space,·while·the | 207 | function·that·does·not·construct·a·list·runs·in·constant·space,·while·the |
| 208 | corresponding·body-recursive·function·uses·stack·space·proportional·to·the | 208 | corresponding·body-recursive·function·uses·stack·space·proportional·to·the |
| 209 | length·of·the·list.</p></section><p>For·example,·a·function·that·sums·a·list·of·integers,·is·<em>not</em>·to·be·written·as | 209 | length·of·the·list.</p></section><p>For·example,·a·function·that·sums·a·list·of·integers,·is·<em>not</em>·to·be·written·as |
| 210 | follows:</p><p><strong>DO·NOT</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">recursive_sum</span><span·class="p"·data-group-id="9924742490-1">(</span><span·class="p"·data-group-id="9924742490-2">[</span><span·class="n">H</span><span·class="p">|</span><span·class="n">T</span><span·class="p"·data-group-id="9924742490-2">]</span><span·class="p"·data-group-id="9924742490-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">H</span><span·class="o">+</span><span·class="nf">recursive_sum</span><span·class="p"·data-group-id="9924742490-3">(</span><span·class="n">T</span><span·class="p"·data-group-id="9924742490-3">)</span><span·class="p">;</span><span·class="w"> | ||
| 211 | </ | 210 | follows:</p><p><strong>DO·NOT</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">recursive_sum</span><span·class="p"·data-group-id="7032240191-1">(</span><span·class="p"·data-group-id="7032240191-2">[</span><span·class="n">H</span[·...·truncated·by·diffoscope;·len:·463,·SHA:·24615f2d5f2e231c4c2992977cf074e0a82732389549fe83e5bb386f37d163b5·...·]</span><span·class="w"> |
| 211 | </span><span·class="nf">recursive_sum</span><span·class="p"·data-group-id="7032240191-4">(</span><span·class="p"·data-group-id="7032240191-5">[</span><span·class="p"·data-group-id="7032240191-5">]</span><span·class="p"·data-group-id="7032240191-4">)</span><span·class="w">····</span><span·class="p">-></span><span·class="w">·</span><span·class="mi">0</span><span·class="p">.</span></code></pre><p>Instead:</p><p><strong>DO</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">sum</span><span·class="p"·data-group-id="2510854561-1">(</span><span·class="n">L</span><span·class="p"·data-group-id="2510854561-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="nf">sum</span><span·class="p"·data-group-id="2510854561-2">(</span><span·class="n">L</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">0</span><span·class="p"·data-group-id="2510854561-2">)</span><span·class="p">.</span><span·class="w"> | ||
| 212 | </span><span·class="nf">sum</span><span·class="p"·data-group-id=" | 212 | </span><span·class="nf">sum</span><span·class="p"·data-group-id="2510854561-3">(</span><span·class="p"·data-group-id="2510854561-4">[</span><span·class="n">H</span><span·class="p">|</span><span·class="n">T</span><span·class="p"·data-group-id="2510854561-4">]</span><span·class="p">,</span><span·class="w">·</span><span·cl[·...·truncated·by·diffoscope;·len:·462,·SHA:·d6f64c23040eca9de0a9076ef4ac1d23c672c9b5ff76382f8bc67ba104516133·...·]-5">)</span><span·class="p">;</span><span·class="w"> |
| 213 | </span><span·class="nf">sum</span><span·class="p"·data-group-id=" | 213 | </span><span·class="nf">sum</span><span·class="p"·data-group-id="2510854561-6">(</span><span·class="p"·data-group-id="2510854561-7">[</span><span·class="p"·data-group-id="2510854561-7">]</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Sum</span><span·class="p"·data-group-id="2510854561-6">)</span><span·class="w">····</span><span·class="p">-></span><span·class="w">·</span><span·class="n">Sum</span><span·class="p">.</span></code></pre> |
| 214 | </div> | 214 | </div> |
| 215 | <div·class="bottom-actions"·id="bottom-actions"> | 215 | <div·class="bottom-actions"·id="bottom-actions"> |
| 216 | ··<div·class="bottom-actions-item"> | 216 | ··<div·class="bottom-actions-item"> |
| 217 | ······<a·href="maps.html"·class="bottom-actions-button"·rel="prev"> | 217 | ······<a·href="maps.html"·class="bottom-actions-button"·rel="prev"> |
| 218 | ········<span·class="subheader"> | 218 | ········<span·class="subheader"> |
| Offset 261, 15 lines modified | Offset 261, 15 lines modified | ||
| 261 | ······<p·class="built-using"> | 261 | ······<p·class="built-using"> |
| 262 | ········Built·using | 262 | ········Built·using |
| 263 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 263 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 264 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 264 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 265 | ······</p> | 265 | ······</p> |
| 266 | <p>Copyright·©·1996-202 | 266 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 267 | ····</footer> | 267 | ····</footer> |
| 268 | ··</div> | 268 | ··</div> |
| 269 | </main> | 269 | </main> |
| 270 | </div> | 270 | </div> |
| 271 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 271 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 272 | ··<script> | 272 | ··<script> |
| 273 | ··let·initialized·=·false; | 273 | ··let·initialized·=·false; |
| Offset 117, 56 lines modified | Offset 117, 56 lines modified | ||
| 117 | <h2·id="file-inclusion"·class="section-heading"> | 117 | <h2·id="file-inclusion"·class="section-heading"> |
| 118 | ··<a·href="#file-inclusion"·class="hover-link"> | 118 | ··<a·href="#file-inclusion"·class="hover-link"> |
| 119 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 119 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 120 | ··</a> | 120 | ··</a> |
| 121 | ··<span·class="text">File·Inclusion</span> | 121 | ··<span·class="text">File·Inclusion</span> |
| 122 | </h2> | 122 | </h2> |
| 123 | <p>A·file·can·be·included·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">include</span><span·class="p"·data-group-id="6327537975-1">(</span><span·class="n">File</span><span·class="p"·data-group-id="6327537975-1">)</span><span·class="p">.</span><span·class="w"> | ||
| 124 | < | 123 | <p>A·file·can·be·included·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">include</span><span·class="p"·data-group-id="9426209591-1">(</span><span·class="n">File</span><span·class="p"·data-group-id="94[·...·truncated·by·diffoscope;·len:·60,·SHA:·1b1810ea926863d867bf340f0e69c69c7c65f49e8d10fdc372dfdb65cc14231a·...·] |
| 124 | </span><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id="9426209591-2">(</span><span·class="n">File</span><span·class="p"·data-group-id="9426209591-2">)</span><span·class="p">.</span></code></pre><p><code·class="inline">File</code>,·a·string,·is·to·point·out·a·file.·The·contents·of·this·file·are·included | ||
| 125 | as·is,·at·the·position·of·the·directive.</p><p>Include·files·are·typically·used·for·record·and·macro·definitions·that·are | 125 | as·is,·at·the·position·of·the·directive.</p><p>Include·files·are·typically·used·for·record·and·macro·definitions·that·are |
| 126 | shared·by·several·modules.·It·is·recommended·to·use·the·file·name·extension | 126 | shared·by·several·modules.·It·is·recommended·to·use·the·file·name·extension |
| 127 | <code·class="inline">.hrl</code>·for·include·files.</p><p><code·class="inline">File</code>·can·start·with·a·path·component·<code·class="inline">$VAR</code>,·for·some·string·<code·class="inline">VAR</code>.·If·that·is | 127 | <code·class="inline">.hrl</code>·for·include·files.</p><p><code·class="inline">File</code>·can·start·with·a·path·component·<code·class="inline">$VAR</code>,·for·some·string·<code·class="inline">VAR</code>.·If·that·is |
| 128 | the·case,·the·value·of·the·environment·variable·<code·class="inline">VAR</code>·as·returned·by | 128 | the·case,·the·value·of·the·environment·variable·<code·class="inline">VAR</code>·as·returned·by |
| 129 | <code·class="inline">os:getenv(VAR)</code>·is·substituted·for·<code·class="inline">$VAR</code>.·If·<code·class="inline">os:getenv(VAR)</code>·returns·<code·class="inline">false</code>, | 129 | <code·class="inline">os:getenv(VAR)</code>·is·substituted·for·<code·class="inline">$VAR</code>.·If·<code·class="inline">os:getenv(VAR)</code>·returns·<code·class="inline">false</code>, |
| 130 | <code·class="inline">$VAR</code>·is·left·as·is.</p><p>If·the·filename·<code·class="inline">File</code>·is·absolute·(possibly·after·variable·substitution),·the | 130 | <code·class="inline">$VAR</code>·is·left·as·is.</p><p>If·the·filename·<code·class="inline">File</code>·is·absolute·(possibly·after·variable·substitution),·the |
| 131 | include·file·with·that·name·is·included.·Otherwise,·the·specified·file·is | 131 | include·file·with·that·name·is·included.·Otherwise,·the·specified·file·is |
| 132 | searched·for·in·the·following·directories,·and·in·this·order:</p><ol><li>The·current·working·directory</li><li>The·directory·where·the·module·is·being·compiled</li><li>The·directories·given·by·the·<code·class="inline">include</code>·option</li></ol><p>For·details,·see·<a·href="../../erts-16.0/doc/html/erlc_cmd.html">erlc</a>·in·ERTS·and | 132 | searched·for·in·the·following·directories,·and·in·this·order:</p><ol><li>The·current·working·directory</li><li>The·directory·where·the·module·is·being·compiled</li><li>The·directories·given·by·the·<code·class="inline">include</code>·option</li></ol><p>For·details,·see·<a·href="../../erts-16.0/doc/html/erlc_cmd.html">erlc</a>·in·ERTS·and |
| 133 | <a·href="../../lib/compiler-9.0/doc/html/compile.html"><code·class="inline">compile</code></a>·in·Compiler.</p><p><em>Examples:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">include</span><span·class="p"·data-group-id=" | 133 | <a·href="../../lib/compiler-9.0/doc/html/compile.html"><code·class="inline">compile</code></a>·in·Compiler.</p><p><em>Examples:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">include</span><span·class="p"·data-group-id="3393374816-1">(</span><span·class="s">"my_records.hrl"</span><span·class="p"·data-group-id="3393374816-1">)</span><span·class="p">.</span><span·class="w"> |
| 134 | </span><span·class="p">-</span><span·class="na">include</span><span·class="p"·data-group-id=" | 134 | </span><span·class="p">-</span><span·class="na">include</span><span·class="p"·data-group-id="3393374816-2">(</span><span·class="s">"incdir/my_records.hrl"</span><span·class="p"·data-group-id="3393374816-2">)</span><span·class="p">.</span><span·class="w"> |
| 135 | </span><span·class="p">-</span><span·class="na">include</span><span·class="p"·data-group-id=" | 135 | </span><span·class="p">-</span><span·class="na">include</span><span·class="p"·data-group-id="3393374816-3">(</span><span·class="s">"/home/user/proj/my_records.hrl"</span><span·class="p"·data-group-id="3393374816-3">)</span><span·class="p">.</span><span·class="w"> |
| 136 | </span><span·class="p">-</span><span·class="na">include</span><span·class="p"·data-group-id=" | 136 | </span><span·class="p">-</span><span·class="na">include</span><span·class="p"·data-group-id="3393374816-4">(</span><span·class="s">"$PROJ_ROOT/my_records.hrl"</span><span·class="p"·data-group-id="3393374816-4">)</span><span·class="p">.</span></code></pre><p><code·class="inline">include_lib</code>·is·similar·to·<code·class="inline">include</code>,·but·is·not·to·point·out·an·absolute·file. |
| 137 | Instead,·the·first·path·component·(possibly·after·variable·substitution)·is | 137 | Instead,·the·first·path·component·(possibly·after·variable·substitution)·is |
| 138 | assumed·to·be·the·name·of·an·application.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id=" | 138 | assumed·to·be·the·name·of·an·application.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id="2498450396-1">(</span><span·class="s">"kernel/include/file.hrl"</span><span·class="p"·data-group-id="2498450396-1">)</span><span·class="p">.</span></code></pre><p>The·code·server·uses·<code·class="inline">code:lib_dir(kernel)</code>·to·find·the·directory·of·the·current |
| 139 | (latest)·version·of·Kernel,·and·then·the·subdirectory·<code·class="inline">include</code>·is·searched·for | 139 | (latest)·version·of·Kernel,·and·then·the·subdirectory·<code·class="inline">include</code>·is·searched·for |
| 140 | the·file·<code·class="inline">file.hrl</code>.</p><h2·id="defining-and-using-macros"·class="section-heading"> | 140 | the·file·<code·class="inline">file.hrl</code>.</p><h2·id="defining-and-using-macros"·class="section-heading"> |
| 141 | ··<a·href="#defining-and-using-macros"·class="hover-link"> | 141 | ··<a·href="#defining-and-using-macros"·class="hover-link"> |
| 142 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 142 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 143 | ··</a> | 143 | ··</a> |
| 144 | ··<span·class="text">Defining·and·Using·Macros</span> | 144 | ··<span·class="text">Defining·and·Using·Macros</span> |
| 145 | </h2> | 145 | </h2> |
| 146 | <p>A·macro·is·defined·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">define</span><span·class="p"·data-group-id=" | 146 | <p>A·macro·is·defined·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">define</span><span·class="p"·data-group-id="1892373112-1">(</span><span·class="n">Const</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Replacement</span><span·class="p"·data-group-id="1892373112-1">)</span><span·class="p">.</span><span·class="w"> |
| 147 | </span><span·class="p">-</span><span·class="na">define</span><span·class="p"·data-group-id=" | 147 | </span><span·class="p">-</span><span·class="na">define</span><span·class="p"·data-group-id="1892373112-2">(</span><span·class="n">Func</span><span·class="p"·data-group-id="1892373112-3">(</span><span·class="n">Var1</span><span·class="p">,</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p">,</span><span·c[·...·truncated·by·diffoscope;·len:·196,·SHA:·cda04490c3ecf149f05c727060d313dab47bf243128df9a127efc302954fc471·...·]-2">)</span><span·class="p">.</span></code></pre><p>A·macro·definition·can·be·placed·anywhere·among·the·attributes·and·function |
| 148 | declarations·of·a·module,·but·the·definition·must·come·before·any·usage·of·the | 148 | declarations·of·a·module,·but·the·definition·must·come·before·any·usage·of·the |
| 149 | macro.</p><p>If·a·macro·is·used·in·several·modules,·it·is·recommended·that·the·macro | 149 | macro.</p><p>If·a·macro·is·used·in·several·modules,·it·is·recommended·that·the·macro |
| 150 | definition·is·placed·in·an·include·file.</p><p>A·macro·is·used·as·follows:</p><pre><code·class="text">?Const | 150 | definition·is·placed·in·an·include·file.</p><p>A·macro·is·used·as·follows:</p><pre><code·class="text">?Const |
| 151 | ?Func(Arg1,...,ArgN)</code></pre><p>Macros·are·expanded·during·compilation.·A·simple·macro·<code·class="inline">?Const</code>·is·replaced·with | 151 | ?Func(Arg1,...,ArgN)</code></pre><p>Macros·are·expanded·during·compilation.·A·simple·macro·<code·class="inline">?Const</code>·is·replaced·with |
| 152 | <code·class="inline">Replacement</code>.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">define</span><span·class="p"·data-group-id=" | 152 | <code·class="inline">Replacement</code>.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">define</span><span·class="p"·data-group-id="8516834502-1">(</span><span·class="n">TIMEOUT</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">200</span><span·class="p"·data-group-id="8516834502-1">)</span><span·class="p">.</span><span·class="w"> |
| 153 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> | 153 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> |
| 154 | </span><span·class="nf">call</span><span·class="p"·data-group-id=" | 154 | </span><span·class="nf">call</span><span·class="p"·data-group-id="8516834502-2">(</span><span·class="n">Request</span><span·class="p"·data-group-id="8516834502-2">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 155 | ····</span><span·class="nc">server</span><span·class="p">:</span><span·class="nf">call</span><span·class="p"·data-group-id=" | 155 | ····</span><span·class="nc">server</span><span·class="p">:</span><span·class="nf">call</span><span·class="p"·data-group-id="8516834502-3">(</span><span·class="ss">refserver</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Request</span><span·class="p">,</span><span·class="w">·</span><span·class="o">?</span><span·class="n">TIMEOUT</span><span·class="p"·data-[·...·truncated·by·diffoscope;·len:·296,·SHA:·3a0bca48d6cd9ade1aca3144ad3a8517b79bb33f228f31e3bd87777a7ee5bfd5·...·]-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 156 | ····</span><span·class="nc">server</span><span·class="p">:</span><span·class="nf">call</span><span·class="p"·data-group-id=" | 156 | ····</span><span·class="nc">server</span><span·class="p">:</span><span·class="nf">call</span><span·class="p"·data-group-id="8665052116-2">(</span><span·class="ss">refserver</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Request</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">200</span><span·class="p"·data-group-id="8665052116-2">)</span><span·class="p">.</span></code></pre><p>A·macro·<code·class="inline">?Func(Arg1,...,ArgN)</code>·is·replaced·with·<code·class="inline">Replacement</code>,·where·all |
| 157 | occurrences·of·a·variable·<code·class="inline">Var</code>·from·the·macro·definition·are·replaced·with·the | 157 | occurrences·of·a·variable·<code·class="inline">Var</code>·from·the·macro·definition·are·replaced·with·the |
| 158 | corresponding·argument·<code·class="inline">Arg</code>.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">define</span><span·class="p"·data-group-id=" | 158 | corresponding·argument·<code·class="inline">Arg</code>.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">define</span><span·class="p"·data-group-id="9556472024-1">(</span><span·class="n">MACRO1</span><span·class="p"·data-group-id="9556472024-2">(</span><span·class="n">X</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Y</span><span·class="p"·data-group-id="9556472024-2">)</span><sp[·...·truncated·by·diffoscope;·len:·434,·SHA:·4c5abe24e0bd9351118075ca4b2a6e00c00cc2832c3a1498a56a9a72e256084e·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 159 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> | 159 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> |
| 160 | </span><span·class="nf">bar</span><span·class="p"·data-group-id=" | 160 | </span><span·class="nf">bar</span><span·class="p"·data-group-id="9556472024-4">(</span><span·class="n">X</span><span·class="p"·data-group-id="9556472024-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 161 | ····</span><span·class="o">?</span><span·class="n">MACRO1</span><span·class="p"·data-group-id=" | 161 | ····</span><span·class="o">?</span><span·class="n">MACRO1</span><span·class="p"·data-group-id="9556472024-5">(</span><span·class="ss">a</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">b</span><span·class="p"·data-group-id="9556472024-5">)</span><span·class="p">,</span><span·class="w"> |
| 162 | ····</span><span·class="o">?</span><span·class="n">MACRO1</span><span·class="p"·data-group-id=" | 162 | ····</span><span·class="o">?</span><span·class="n">MACRO1</span><span·class="p"·data-group-id="9556472024-6">(</span><span·class="n">X</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">123</span><span·class="p"·data-group-id="9556472024-6">)</span></code></pre><p>This·is·expanded·to:</p><pre><code·class="makeup·erlang"·translate[·...·truncated·by·diffoscope;·len:·151,·SHA:·9fae4bb97c196ba5c2d727048ce41fe37e2aef63ea3708659121566ea2ce7b2b·...·]-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 163 | ····</span><span·class="p"·data-group-id=" | 163 | ····</span><span·class="p"·data-group-id="5848537617-2">{</span><span·class="ss">a</span><span·class="p">,</span><span·class="ss">a</span><span·class="p">,</span><span·class="ss">b</span><span·class="p">,</span><span·class="ss">b</span><span·class="p"·data-group-id="5848537617-2">}</span><span·class="p">,</span><span·class="w"> |
| 164 | ····</span><span·class="p"·data-group-id=" | 164 | ····</span><span·class="p"·data-group-id="5848537617-3">{</span><span·class="ss">a</span><span·class="p">,</span><span·class="n">X</span><span·class="p">,</span><span·class="ss">b</span><span·class="p">,</span><span·class="mi">123</span><span·class="p"·data-group-id="5848537617-3">}</span><span·class="p">.</span></code></pre><p>It·is·good·programming·practice,·but·not·mandatory,·to·ensure·that·a·macro |
| 165 | definition·is·a·valid·Erlang·syntactic·form.</p><p>To·view·the·result·of·macro·expansion,·a·module·can·be·compiled·with·the·<code·class="inline">'P'</code> | 165 | definition·is·a·valid·Erlang·syntactic·form.</p><p>To·view·the·result·of·macro·expansion,·a·module·can·be·compiled·with·the·<code·class="inline">'P'</code> |
| 166 | option.·<code·class="inline">compile:file(File,·['P'])</code>.·This·produces·a·listing·of·the·parsed·code | 166 | option.·<code·class="inline">compile:file(File,·['P'])</code>.·This·produces·a·listing·of·the·parsed·code |
| 167 | after·preprocessing·and·parse·transforms,·in·the·file·<code·class="inline">File.P</code>.</p><h2·id="predefined-macros"·class="section-heading"> | 167 | after·preprocessing·and·parse·transforms,·in·the·file·<code·class="inline">File.P</code>.</p><h2·id="predefined-macros"·class="section-heading"> |
| 168 | ··<a·href="#predefined-macros"·class="hover-link"> | 168 | ··<a·href="#predefined-macros"·class="hover-link"> |
| 169 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 169 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 170 | ··</a> | 170 | ··</a> |
| 171 | ··<span·class="text">Predefined·Macros</span> | 171 | ··<span·class="text">Predefined·Macros</span> |
| Offset 185, 29 lines modified | Offset 185, 29 lines modified | ||
| 185 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 185 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 186 | ··</a> | 186 | ··</a> |
| 187 | ··<span·class="text">Macros·Overloading</span> | 187 | ··<span·class="text">Macros·Overloading</span> |
| 188 | </h2> | 188 | </h2> |
| 189 | <p>It·is·possible·to·overload·macros,·except·for·predefined·macros.·An·overloaded | 189 | <p>It·is·possible·to·overload·macros,·except·for·predefined·macros.·An·overloaded |
| 190 | macro·has·more·than·one·definition,·each·with·a·different·number·of·arguments.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Change</h4><p>Support·for·overloading·of·macros·was·added·in·Erlang·5.7.5/OTP·R13B04.</p></section><p>A·macro·<code·class="inline">?Func(Arg1,...,ArgN)</code>·with·a·(possibly·empty)·list·of·arguments·results | 190 | macro·has·more·than·one·definition,·each·with·a·different·number·of·arguments.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Change</h4><p>Support·for·overloading·of·macros·was·added·in·Erlang·5.7.5/OTP·R13B04.</p></section><p>A·macro·<code·class="inline">?Func(Arg1,...,ArgN)</code>·with·a·(possibly·empty)·list·of·arguments·results |
| 191 | in·an·error·message·if·there·is·at·least·one·definition·of·<code·class="inline">Func</code>·with | 191 | in·an·error·message·if·there·is·at·least·one·definition·of·<code·class="inline">Func</code>·with |
| 192 | arguments,·but·none·with·N·arguments.</p><p>Assuming·these·definitions:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">define</span><span·class="p"·data-group-id=" | 192 | arguments,·but·none·with·N·arguments.</p><p>Assuming·these·definitions:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">define</span><span·class="p"·data-group-id="5776684197-1">(</span><span·class="n">F0</span><span·class="p"·data-group-id="5776684197-2">(</span><span·class="p"·data-group-id="5776684197-2">)</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">c</span><span·class="p"·data-group-id=[·...·truncated·by·diffoscope;·len:·11,·SHA:·d4d7e98230e42177ea2fd2cff37e8a12cc23ff135aa50f5020fcd1d4203f8a48·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 193 | </span><span·class="p">-</span><span·class="na">define</span><span·class="p"·data-group-id=" | 193 | </span><span·class="p">-</span><span·class="na">define</span><span·class="p"·data-group-id="5776684197-3">(</span><span·class="n">F1</span><span·class="p"·data-group-id="5776684197-4">(</span><span·class="n">A</span><span·class="p"·data-group-id="5776684197-4">)</span><span·class="p">,</span><span·class="w">·</span><span·class="n">A</span><span·c[·...·truncated·by·diffoscope;·len:·34,·SHA:·ede372a86898cded4f755ef8bbc043b47903e6b40d18e6ec1b9c7fbe7ab8f037·...·]-3">)</span><span·class="p">.</span><span·class="w"> |
| 194 | </span><span·class="p">-</span><span·class="na">define</span><span·class="p"·data-group-id=" | 194 | </span><span·class="p">-</span><span·class="na">define</span><span·class="p"·data-group-id="5776684197-5">(</span><span·class="n">C</span><span·class="p">,</span><span·class="w">·</span><span·class="nc">m</span><span·class="p">:</span><span·class="ss">f</span><span·class="p"·data-group-id="5776684197-5">)</span><span·class="p">.</span></code></pr[·...·truncated·by·diffoscope;·len:·205,·SHA:·be27795cb47db6be772ce130ef6d8f8586d4cf3e3bb74385b00cb158ff09d4d3·...·]-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 195 | ····</span><span·class="o">?</span><span·class="n">F0</span><span·class="p">.</span><span·class="w">·</span><span·class="c1">%·No,·an·empty·list·of·arguments·expected.</span><span·class="w"> | 195 | ····</span><span·class="o">?</span><span·class="n">F0</span><span·class="p">.</span><span·class="w">·</span><span·class="c1">%·No,·an·empty·list·of·arguments·expected.</span><span·class="w"> |
| 196 | </span><span·class="nf">f1</span><span·class="p"·data-group-id=" | 196 | </span><span·class="nf">f1</span><span·class="p"·data-group-id="9886934725-2">(</span><span·class="n">A</span><span·class="p"·data-group-id="9886934725-2">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 197 | ····</span><span·class="o">?</span><span·class="n">F1</span><span·class="p"·data-group-id=" | 197 | ····</span><span·class="o">?</span><span·class="n">F1</span><span·class="p"·data-group-id="9886934725-3">(</span><span·class="n">A</span><span·class="p">,</span><span·class="w">·</span><span·class="n">A</span><span·class="p"·data-group-id="9886934725-3">)</span><span·class="p">.</span><span·class="w">·</span><span·class="c1">%·No,·exactly·one·argument·expected.</span></code></pre><p>On·the·other·hand,</p><pre><code·class="text">f()·-> |
| 198 | ····?C().</code></pre><p>is·expanded·to</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">f</span><span·class="p"·data-group-id=" | 198 | ····?C().</code></pre><p>is·expanded·to</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">f</span><span·class="p"·data-group-id="6953758710-1">(</span><span·class="p"·data-group-id="6953758710-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 199 | ····</span><span·class="nc">m</span><span·class="p">:</span><span·class="nf">f</span><span·class="p"·data-group-id=" | 199 | ····</span><span·class="nc">m</span><span·class="p">:</span><span·class="nf">f</span><span·class="p"·data-group-id="6953758710-2">(</span><span·class="p"·data-group-id="6953758710-2">)</span><span·class="p">.</span></code></pre><h2·id="removing-a-macro-definition"·class="section-heading"> |
| 200 | ··<a·href="#removing-a-macro-definition"·class="hover-link"> | 200 | ··<a·href="#removing-a-macro-definition"·class="hover-link"> |
| 201 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 201 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 202 | ··</a> | 202 | ··</a> |
| 203 | ··<span·class="text">Removing·a·macro·definition</span> | 203 | ··<span·class="text">Removing·a·macro·definition</span> |
| 204 | </h2> | 204 | </h2> |
| 205 | <p>A·definition·of·macro·can·be·removed·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">undef</span><span·class="p"·data-group-id=" | 205 | <p>A·definition·of·macro·can·be·removed·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">undef</span><span·class="p"·data-group-id="0773538089-1">(</span><span·class="n">Macro</span><span·class="p"·data-group-id="0773538089-1">)</span><span·class="p">.</span></code></pre><h2·id="conditional-compilation"·class="section-heading"> |
| 206 | ··<a·href="#conditional-compilation"·class="hover-link"> | 206 | ··<a·href="#conditional-compilation"·class="hover-link"> |
| 207 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 207 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 208 | ··</a> | 208 | ··</a> |
| 209 | ··<span·class="text">Conditional·Compilation</span> | 209 | ··<span·class="text">Conditional·Compilation</span> |
| 210 | </h2> | 210 | </h2> |
| 211 | <p>The·following·macro·directives·support·conditional·compilation:</p><ul><li><p><strong><code·class="inline">-ifdef(Macro).</code></strong>·-·Evaluate·the·following·lines·only·if·<code·class="inline">Macro</code>·is | 211 | <p>The·following·macro·directives·support·conditional·compilation:</p><ul><li><p><strong><code·class="inline">-ifdef(Macro).</code></strong>·-·Evaluate·the·following·lines·only·if·<code·class="inline">Macro</code>·is |
| 212 | defined.</p></li><li><p><strong><code·class="inline">-ifndef(Macro).</code></strong>·-·Evaluate·the·following·lines·only·if·<code·class="inline">Macro</code>·is·not | 212 | defined.</p></li><li><p><strong><code·class="inline">-ifndef(Macro).</code></strong>·-·Evaluate·the·following·lines·only·if·<code·class="inline">Macro</code>·is·not |
| Offset 219, 43 lines modified | Offset 219, 43 lines modified | ||
| 219 | true,·and·the·<code·class="inline">Condition</code>·evaluates·to·true,·the·lines·following·the·<code·class="inline">elif</code> | 219 | true,·and·the·<code·class="inline">Condition</code>·evaluates·to·true,·the·lines·following·the·<code·class="inline">elif</code> |
| 220 | are·evaluated·instead.</p></li><li><p><strong><code·class="inline">-endif.</code></strong>·-·Specifies·the·end·of·a·series·of·control·flow·directives.</p></li></ul><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>Macro·directives·cannot·be·used·inside·functions.</p></section><p>Syntactically,·the·<code·class="inline">Condition</code>·in·<code·class="inline">if</code>·and·<code·class="inline">elif</code>·must·be·a | 220 | are·evaluated·instead.</p></li><li><p><strong><code·class="inline">-endif.</code></strong>·-·Specifies·the·end·of·a·series·of·control·flow·directives.</p></li></ul><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>Macro·directives·cannot·be·used·inside·functions.</p></section><p>Syntactically,·the·<code·class="inline">Condition</code>·in·<code·class="inline">if</code>·and·<code·class="inline">elif</code>·must·be·a |
| 221 | <a·href="expressions.html#guard-expressions">guard·expression</a>.·Other·constructs·(such·as | 221 | <a·href="expressions.html#guard-expressions">guard·expression</a>.·Other·constructs·(such·as |
| 222 | a·<code·class="inline">case</code>·expression)·result·in·a·compilation·error.</p><p>As·opposed·to·the·standard·guard·expressions,·an·expression·in·an·<code·class="inline">if</code>·and | 222 | a·<code·class="inline">case</code>·expression)·result·in·a·compilation·error.</p><p>As·opposed·to·the·standard·guard·expressions,·an·expression·in·an·<code·class="inline">if</code>·and |
| 223 | <code·class="inline">elif</code>·also·supports·calling·the·psuedo-function·<code·class="inline">defined(Name)</code>,·which·tests | 223 | <code·class="inline">elif</code>·also·supports·calling·the·psuedo-function·<code·class="inline">defined(Name)</code>,·which·tests |
| 224 | whether·the·<code·class="inline">Name</code>·argument·is·the·name·of·a·previously·defined·macro. | 224 | whether·the·<code·class="inline">Name</code>·argument·is·the·name·of·a·previously·defined·macro. |
| 225 | <code·class="inline">defined(Name)</code>·evaluates·to·<code·class="inline">true</code>·if·the·macro·is·defined·and·<code·class="inline">false</code> | 225 | <code·class="inline">defined(Name)</code>·evaluates·to·<code·class="inline">true</code>·if·the·macro·is·defined·and·<code·class="inline">false</code> |
| 226 | otherwise.·An·attempt·to·call·other·functions·results·in·a·compilation·error.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="20 | 226 | otherwise.·An·attempt·to·call·other·functions·results·in·a·compilation·error.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="4420174754-1">(</span><span·class="ss">m</span><span·class="p"·data-group-id="4420174754-1">)</span><span·class="p">.</span><span·class="w"> |
| 227 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> | 227 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> |
| 228 | </span><span·class="w"> | 228 | </span><span·class="w"> |
| 229 | </span><span·class="p">-</span><span·class="na">ifdef</span><span·class="p"·data-group-id="20 | 229 | </span><span·class="p">-</span><span·class="na">ifdef</span><span·class="p"·data-group-id="4420174754-2">(</span><span·class="ss">debug</span><span·class="p"·data-group-id="4420174754-2">)</span><span·class="p">.</span><span·class="w"> |
| 230 | </span><span·class="p">-</span><span·class="na">define</span><span·class="p"·data-group-id="20 | 230 | </span><span·class="p">-</span><span·class="na">define</span><span·class="p"·data-group-id="4420174754-3">(</span><span·class="n">LOG</span><span·class="p"·data-group-id="4420174754-4">(</span><span·class="n">X</span><span·class="p"·data-group-id="4420174754-4">)</span><span·class="p">,</span><span·class="w">·</span><span·class="nc">io</span><spa[·...·truncated·by·diffoscope;·len:·739,·SHA:·28a69f8e13fbfcff98c0f3c826268b432e305fff6c9febcd6117b3f6a631b5d2·...·]4-3">)</span><span·class="p">.</span><span·class="w"> |
| 231 | </span><span·class="p">-</span><span·class="na">else</span><span·class="p">.</span><span·class="w"> | 231 | </span><span·class="p">-</span><span·class="na">else</span><span·class="p">.</span><span·class="w"> |
| 232 | </span><span·class="p">-</span><span·class="na">define</span><span·class="p"·data-group-id="20 | 232 | </span><span·class="p">-</span><span·class="na">define</span><span·class="p"·data-group-id="4420174754-7">(</span><span·class="n">LOG</span><span·class="p"·data-group-id="4420174754-8">(</span><span·class="n">X</span><span·class="p"·data-group-id="4420174754-8">)</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">true</span><s[·...·truncated·by·diffoscope;·len:·38,·SHA:·ec7d672a040c665f092cb5201436bced135ce4bad657395d4541a1384520540d·...·]4-7">)</span><span·class="p">.</span><span·class="w"> |
| 233 | </span><span·class="p">-</span><span·class="na">endif</span><span·class="p">.</span><span·class="w"> | 233 | </span><span·class="p">-</span><span·class="na">endif</span><span·class="p">.</span><span·class="w"> |
| 234 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span></code></pre><p>When·trace·output·is·desired,·<code·class="inline">debug</code>·is·to·be·defined·when·the·module·<code·class="inline">m</code>·is | 234 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span></code></pre><p>When·trace·output·is·desired,·<code·class="inline">debug</code>·is·to·be·defined·when·the·module·<code·class="inline">m</code>·is |
| 235 | compiled:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%·erlc·-Ddebug·m.erl</span><span·class="w"> | 235 | compiled:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%·erlc·-Ddebug·m.erl</span><span·class="w"> |
| 236 | </span><span·class="ow">or</span><span·class="w"> | 236 | </span><span·class="ow">or</span><span·class="w"> |
| 237 | </span><span·class="mi">1</span><span·class="o">></span><span·class="w">·</span><span·class="nf">c</span><span·class="p"·data-group-id=" | 237 | </span><span·class="mi">1</span><span·class="o">></span><span·class="w">·</span><span·class="nf">c</span><span·class="p"·data-group-id="5169261026-1">(</span><span·class="ss">m</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="5169261026-2">{</span><span·class="ss">d</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">debug</span><span·[·...·truncated·by·diffoscope;·len:·88,·SHA:·bf8bb64662427852da71a44a4f6c65b874364834868bf7a3dd0c559ecd94c5f2·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 238 | </span><span·class="p"·data-group-id=" | 238 | </span><span·class="p"·data-group-id="5169261026-3">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="ss">m</span><span·class="p"·data-group-id="5169261026-3">}</span></code></pre><p><code·class="inline">?LOG(Arg)</code>·is·then·expanded·to·a·call·to·<a·href="../../lib/stdlib-7.0/doc/html/io.html#format/2"><code·class="inline">io:format/2</code></a>·and·provide·the·user |
| 239 | with·some·simple·trace·output.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 239 | with·some·simple·trace·output.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="5867447977-1">(</span><span·class="ss">m</span><span·class="p"·data-group-id="5867447977-1">)</span><span·class="w"> |
| 240 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> | 240 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> |
| 241 | </span><span·class="p">-</span><span·class="na">if</span><span·class="p"·data-group-id=" | 241 | </span><span·class="p">-</span><span·class="na">if</span><span·class="p"·data-group-id="5867447977-2">(</span><span·class="o">?</span><span·class="n">OTP_RELEASE</span><span·class="w">·</span><span·class="o">>=</span><span·class="w">·</span><span·class="mi">25</span><span·class="p"·data-group-id="5867447977-2">)</span><span·class="p">.</span><span·class="w"> |
| 242 | </span><span·class="c1">%%·Code·that·will·work·in·OTP·25·or·higher</span><span·class="w"> | 242 | </span><span·class="c1">%%·Code·that·will·work·in·OTP·25·or·higher</span><span·class="w"> |
| 243 | </span><span·class="p">-</span><span·class="na">elif</span><span·class="p"·data-group-id=" | 243 | </span><span·class="p">-</span><span·class="na">elif</span><span·class="p"·data-group-id="5867447977-3">(</span><span·class="o">?</span><span·class="n">OTP_RELEASE</span><span·class="w">·</span><span·class="o">>=</span><span·class="w">·</span><span·class="mi">26</span><span·class="p"·data-group-id="5867447977-3">)</span><span·class="p">.</span><span·class="w"> |
| 244 | </span><span·class="c1">%%·Code·that·will·work·in·OTP·26·or·higher</span><span·class="w"> | 244 | </span><span·class="c1">%%·Code·that·will·work·in·OTP·26·or·higher</span><span·class="w"> |
| 245 | </span><span·class="p">-</span><span·class="na">else</span><span·class="p">.</span><span·class="w"> | 245 | </span><span·class="p">-</span><span·class="na">else</span><span·class="p">.</span><span·class="w"> |
| 246 | </span><span·class="c1">%%·Code·that·will·work·in·OTP·24·or·lower.</span><span·class="w"> | 246 | </span><span·class="c1">%%·Code·that·will·work·in·OTP·24·or·lower.</span><span·class="w"> |
| 247 | </span><span·class="p">-</span><span·class="na">endif</span><span·class="p">.</span><span·class="w"> | 247 | </span><span·class="p">-</span><span·class="na">endif</span><span·class="p">.</span><span·class="w"> |
| 248 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span></code></pre><p>This·code·uses·the·<code·class="inline">OTP_RELEASE</code>·macro·to·conditionally·select·code·depending·on | 248 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span></code></pre><p>This·code·uses·the·<code·class="inline">OTP_RELEASE</code>·macro·to·conditionally·select·code·depending·on |
| 249 | release.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 249 | release.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="4247749421-1">(</span><span·class="ss">m</span><span·class="p"·data-group-id="4247749421-1">)</span><span·class="w"> |
| 250 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> | 250 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> |
| 251 | </span><span·class="p">-</span><span·class="na">if</span><span·class="p"·data-group-id=" | 251 | </span><span·class="p">-</span><span·class="na">if</span><span·class="p"·data-group-id="4247749421-2">(</span><span·class="o">?</span><span·class="n">OTP_RELEASE</span><span·class="w">·</span><span·class="o">>=</span><span·class="w">·</span><span·class="mi">26</span><span·class="w">·</span><span·class="ow">andalso</span><span·class="w">·</[·...·truncated·by·diffoscope;·len:·212,·SHA:·53d976bce5e39f5ab7af7212857ae318820f8bd8033d594509f4e701b20f9198·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 252 | </span><span·class="c1">%%·Debugging·code·that·requires·OTP·26·or·later.</span><span·class="w"> | 252 | </span><span·class="c1">%%·Debugging·code·that·requires·OTP·26·or·later.</span><span·class="w"> |
| 253 | </span><span·class="p">-</span><span·class="na">else</span><span·class="p">.</span><span·class="w"> | 253 | </span><span·class="p">-</span><span·class="na">else</span><span·class="p">.</span><span·class="w"> |
| 254 | </span><span·class="c1">%%·Non-debug·code·that·works·in·any·release.</span><span·class="w"> | 254 | </span><span·class="c1">%%·Non-debug·code·that·works·in·any·release.</span><span·class="w"> |
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| Offset 148, 16 lines modified | Offset 148, 16 lines modified | ||
| 148 | single·function·that·constructs·the·map·using·the·map·syntax·and·always·use | 148 | single·function·that·constructs·the·map·using·the·map·syntax·and·always·use |
| 149 | it.</p></li><li><p>Always·update·the·map·using·the·<code·class="inline">:=</code>·operator·(that·is,·requiring·that·an | 149 | it.</p></li><li><p>Always·update·the·map·using·the·<code·class="inline">:=</code>·operator·(that·is,·requiring·that·an |
| 150 | element·with·that·key·already·exists).·The·<code·class="inline">:=</code>·operator·is·slightly·more | 150 | element·with·that·key·already·exists).·The·<code·class="inline">:=</code>·operator·is·slightly·more |
| 151 | efficient,·and·it·helps·catching·mispellings·of·keys.</p></li><li><p>Whenever·possible,·match·multiple·map·elements·at·once.</p></li><li><p>Whenever·possible,·update·multiple·map·elements·at·once.</p></li><li><p>Avoid·default·values·and·the·<a·href="../../lib/stdlib-7.0/doc/html/maps.html#get/3"><code·class="inline">maps:get/3</code></a>·function.·If·there·are·default | 151 | efficient,·and·it·helps·catching·mispellings·of·keys.</p></li><li><p>Whenever·possible,·match·multiple·map·elements·at·once.</p></li><li><p>Whenever·possible,·update·multiple·map·elements·at·once.</p></li><li><p>Avoid·default·values·and·the·<a·href="../../lib/stdlib-7.0/doc/html/maps.html#get/3"><code·class="inline">maps:get/3</code></a>·function.·If·there·are·default |
| 152 | values,·sharing·of·keys·between·different·instances·of·the·map·will·be·less | 152 | values,·sharing·of·keys·between·different·instances·of·the·map·will·be·less |
| 153 | effective,·and·it·is·not·possible·to·match·multiple·elements·having·default | 153 | effective,·and·it·is·not·possible·to·match·multiple·elements·having·default |
| 154 | values·in·one·go.</p></li><li><p>To·avoid·having·to·deal·with·a·map·that·may·lack·some·keys,·<a·href="../../lib/stdlib-7.0/doc/html/maps.html#merge/2"><code·class="inline">maps:merge/2</code></a>·can | 154 | values·in·one·go.</p></li><li><p>To·avoid·having·to·deal·with·a·map·that·may·lack·some·keys,·<a·href="../../lib/stdlib-7.0/doc/html/maps.html#merge/2"><code·class="inline">maps:merge/2</code></a>·can |
| 155 | efficiently·add·multiple·default·values.·For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">DefaultMap</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 155 | efficiently·add·multiple·default·values.·For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">DefaultMap</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="8518744006-1">#{</span><span·class="ss">shoe_size</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="mi">42</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">editor</span><span·class="w">·</s[·...·truncated·by·diffoscope;·len:·126,·SHA:·4c207bd2bfbe718613b8e15d1c52fd6f93f8f9b94a20d10889a7fc73dc6214bc·...·]-1">}</span><span·class="p">,</span><span·class="w"> |
| 156 | </span><span·class="n">MapWithDefaultsApplied</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">maps</span><span·class="p">:</span><span·class="nf">merge</span><span·class="p"·data-group-id=" | 156 | </span><span·class="n">MapWithDefaultsApplied</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">maps</span><span·class="p">:</span><span·class="nf">merge</span><span·class="p"·data-group-id="8518744006-2">(</span><span·class="n">DefaultMap</span><span·class="p">,</span><span·class="w">·</span><span·class="n">OtherMap</span><span·class="p"·data-group-id="8518744006-2">)</span></code></pre></li></ul><h2·id="using-maps-as-dictionaries"·class="section-heading"> |
| 157 | ··<a·href="#using-maps-as-dictionaries"·class="hover-link"> | 157 | ··<a·href="#using-maps-as-dictionaries"·class="hover-link"> |
| 158 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 158 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 159 | ··</a> | 159 | ··</a> |
| 160 | ··<span·class="text">Using·Maps·as·Dictionaries</span> | 160 | ··<span·class="text">Using·Maps·as·Dictionaries</span> |
| 161 | </h2> | 161 | </h2> |
| 162 | <p>Using·a·map·as·a·dictionary·implies·the·following·usage·pattern:</p><ul><li>Keys·are·usually·variables·not·known·at·compile-time.</li><li>There·can·be·any·number·of·elements·in·the·map.</li><li>Usually,·no·more·than·one·element·is·looked·up·or·updated·at·once.</li></ul><p>Given·that·usage·pattern,·the·difference·in·performance·between·using·the·map | 162 | <p>Using·a·map·as·a·dictionary·implies·the·following·usage·pattern:</p><ul><li>Keys·are·usually·variables·not·known·at·compile-time.</li><li>There·can·be·any·number·of·elements·in·the·map.</li><li>Usually,·no·more·than·one·element·is·looked·up·or·updated·at·once.</li></ul><p>Given·that·usage·pattern,·the·difference·in·performance·between·using·the·map |
| 163 | syntax·and·the·maps·module·is·usually·small.·Therefore,·which·one·to·use·is | 163 | syntax·and·the·maps·module·is·usually·small.·Therefore,·which·one·to·use·is |
| Offset 167, 18 lines modified | Offset 167, 18 lines modified | ||
| 167 | choice.</li></ul><h2·id="using-maps-as-sets"·class="section-heading"> | 167 | choice.</li></ul><h2·id="using-maps-as-sets"·class="section-heading"> |
| 168 | ··<a·href="#using-maps-as-sets"·class="hover-link"> | 168 | ··<a·href="#using-maps-as-sets"·class="hover-link"> |
| 169 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 169 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 170 | ··</a> | 170 | ··</a> |
| 171 | ··<span·class="text">Using·Maps·as·Sets</span> | 171 | ··<span·class="text">Using·Maps·as·Sets</span> |
| 172 | </h2> | 172 | </h2> |
| 173 | <p>Starting·in·OTP·24,·the·<a·href="../../lib/stdlib-7.0/doc/html/sets.html"><code·class="inline">sets</code></a>·module·has·an·option·to·represent·sets·as·maps. | 173 | <p>Starting·in·OTP·24,·the·<a·href="../../lib/stdlib-7.0/doc/html/sets.html"><code·class="inline">sets</code></a>·module·has·an·option·to·represent·sets·as·maps. |
| 174 | Examples:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">sets</span><span·class="p">:</span><span·class="nf">new</span><span·class="p"·data-group-id=" | 174 | Examples:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">sets</span><span·class="p">:</span><span·class="nf">new</span><span·class="p"·data-group-id="8896945621-1">(</span><span·class="p"·data-group-id="8896945621-2">[</span><span·class="p"·data-group-id="8896945621-3">{</span><span·class="ss">version</span><span·class="p">,</span><span·class="mi">2</span><span·class="p"·data-group-id="8896945621-3">}</[·...·truncated·by·diffoscope;·len:·99,·SHA:·c98e15a16d511696f0176f6cd1676cf6c83f88ebf6e31f6c2d89299e73f5a54a·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 175 | </span><span·class="p"·data-group-id=" | 175 | </span><span·class="p"·data-group-id="8896945621-4">#{</span><span·class="p"·data-group-id="8896945621-4">}</span><span·class="gp·unselectable"> |
| 176 | 2>·</span><span·class="nc">sets</span><span·class="p">:</span><span·class="nf">from_list</span><span·class="p"·data-group-id="7857868256-5">(</span><span·class="p"·data-group-id="7857868256-6">[</span><span·class="ss">x</span><span·class="p">,</span><span·class="ss">y</span><span·class="p">,</span><span·class="ss">z</span><span·class="p"·data-group-id="7857868256-6">]</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="7857868256-7">[</span><span·class="p"·data-group-id="7857868256-8">{</span><span·class="ss">version</span><span·class="p">,</span><span·class="mi">2</span><span·class="p"·data-group-id="7857868256-8">}</span><span·class="p"·data-group-id="7857868256-7">]</span><span·class="p"·data-group-id="7857868256-5">)</span><span·class="p">.</span><span·class="w"> | ||
| 177 | </span><span·class= | 176 | 2>·</span><span·class="nc">sets</span><span·class="p">:</span><span·class="nf">from_list</span><span·class="p"·data-group-id="8896945621-5">(</span><span·class="p"·data-group-id="8896945621-6">[</span><span·class="ss">x</span><span·class="p">,</span><sp[·...·truncated·by·diffoscope;·len:·557,·SHA:·be498c8d9d13cd68c9fb59a9097f99f4f1413465b64eb08e3d45760941458013·...·] |
| 177 | </span><span·class="p"·data-group-id="8896945621-9">#{</span><span·class="ss">x</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="8896945621-10">[</span><span·class="p"·data-group-id="8896945621-10">]</span><span·class="p">,</span><span·class="ss">y</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="8896945621-11">[</span><span·class="p"·data-group-id="8896945621-11">]</span><span·class="p">,</span><span·class="ss">z</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="8896945621-12">[</span><span·class="p"·data-group-id="8896945621-12">]</span><span·class="p"·data-group-id="8896945621-9">}</span></code></pre><p><code·class="inline">sets</code>·backed·by·maps·is·generally·the·most·efficient·set·representation,·with·a | ||
| 178 | few·possible·exceptions:</p><ul><li><a·href="../../lib/stdlib-7.0/doc/html/ordsets.html#intersection/2"><code·class="inline">ordsets:intersection/2</code></a>·can·be·more·efficient·than·<a·href="../../lib/stdlib-7.0/doc/html/sets.html#intersection/2"><code·class="inline">sets:intersection/2</code></a>.·If | 178 | few·possible·exceptions:</p><ul><li><a·href="../../lib/stdlib-7.0/doc/html/ordsets.html#intersection/2"><code·class="inline">ordsets:intersection/2</code></a>·can·be·more·efficient·than·<a·href="../../lib/stdlib-7.0/doc/html/sets.html#intersection/2"><code·class="inline">sets:intersection/2</code></a>.·If |
| 179 | the·intersection·operation·is·frequently·used·and·operations·that·operate·on·a | 179 | the·intersection·operation·is·frequently·used·and·operations·that·operate·on·a |
| 180 | single·element·in·a·set·(such·as·<code·class="inline">is_element/2</code>)·are·avoided,·<a·href="../../lib/stdlib-7.0/doc/html/ordsets.html"><code·class="inline">ordsets</code></a>·can | 180 | single·element·in·a·set·(such·as·<code·class="inline">is_element/2</code>)·are·avoided,·<a·href="../../lib/stdlib-7.0/doc/html/ordsets.html"><code·class="inline">ordsets</code></a>·can |
| 181 | be·a·better·choice·than·<a·href="../../lib/stdlib-7.0/doc/html/sets.html"><code·class="inline">sets</code></a>.</li><li>If·the·intersection·operation·is·frequently·used·and·operations·that·operate | 181 | be·a·better·choice·than·<a·href="../../lib/stdlib-7.0/doc/html/sets.html"><code·class="inline">sets</code></a>.</li><li>If·the·intersection·operation·is·frequently·used·and·operations·that·operate |
| 182 | on·a·single·element·in·a·set·(such·as·<code·class="inline">is_element/2</code>)·must·also·be·efficient, | 182 | on·a·single·element·in·a·set·(such·as·<code·class="inline">is_element/2</code>)·must·also·be·efficient, |
| 183 | <a·href="../../lib/stdlib-7.0/doc/html/gb_sets.html"><code·class="inline">gb_sets</code></a>·can·potentially·be·a·better·choice·than·<a·href="../../lib/stdlib-7.0/doc/html/sets.html"><code·class="inline">sets</code></a>.</li><li>If·the·elements·of·the·set·are·integers·in·a·fairly·compact·range,·the·set·can | 183 | <a·href="../../lib/stdlib-7.0/doc/html/gb_sets.html"><code·class="inline">gb_sets</code></a>·can·potentially·be·a·better·choice·than·<a·href="../../lib/stdlib-7.0/doc/html/sets.html"><code·class="inline">sets</code></a>.</li><li>If·the·elements·of·the·set·are·integers·in·a·fairly·compact·range,·the·set·can |
| 184 | be·represented·as·an·integer·where·each·bit·represents·an·element·in·the·set. | 184 | be·represented·as·an·integer·where·each·bit·represents·an·element·in·the·set. |
| Offset 203, 18 lines modified | Offset 203, 18 lines modified | ||
| 203 | for·the·runtime·system).</p></li><li><p><strong>N</strong>·-·The·number·of·elements·in·the·map.</p></li><li><p><strong>Keys</strong>·-·A·tuple·with·keys·of·the·map:·<code·class="inline">{Key1,...,KeyN}</code>.·The·keys·are | 203 | for·the·runtime·system).</p></li><li><p><strong>N</strong>·-·The·number·of·elements·in·the·map.</p></li><li><p><strong>Keys</strong>·-·A·tuple·with·keys·of·the·map:·<code·class="inline">{Key1,...,KeyN}</code>.·The·keys·are |
| 204 | sorted.</p></li><li><p><strong>Value1</strong>·-·The·value·corresponding·to·the·first·key·in·the·key·tuple.</p></li><li><p><strong>ValueN</strong>·-·The·value·corresponding·to·the·last·key·in·the·key·tuple.</p></li></ul><p>As·an·example,·let·us·look·at·how·the·map·<code·class="inline">#{a·=>·foo,·z·=>·bar}</code>·is | 204 | sorted.</p></li><li><p><strong>Value1</strong>·-·The·value·corresponding·to·the·first·key·in·the·key·tuple.</p></li><li><p><strong>ValueN</strong>·-·The·value·corresponding·to·the·last·key·in·the·key·tuple.</p></li></ul><p>As·an·example,·let·us·look·at·how·the·map·<code·class="inline">#{a·=>·foo,·z·=>·bar}</code>·is |
| 205 | represented:</p><table><thead><tr><th·style="text-align:·center;">0</th><th·style="text-align:·left;">1</th><th·style="text-align:·center;">2</th><th·style="text-align:·center;">3</th><th·style="text-align:·left;">4</th></tr></thead><tbody><tr><td·style="text-align:·center;"><strong>FLATMAP</strong></td><td·style="text-align:·left;">2</td><td·style="text-align:·center;"><code·class="inline">{a,z}</code></td><td·style="text-align:·center;"><code·class="inline">foo</code></td><td·style="text-align:·left;"><code·class="inline">bar</code></td></tr></tbody></table><p><em>Table:·#{a·=>·foo,·z·=>·bar}</em></p><p>Let·us·update·the·map:·<code·class="inline">M#{q·=>·baz}</code>.·The·map·now·looks·like·this:</p><table><thead><tr><th·style="text-align:·center;">0</th><th·style="text-align:·left;">1</th><th·style="text-align:·center;">2</th><th·style="text-align:·center;">3</th><th·style="text-align:·center;">4</th><th·style="text-align:·center;">5</th></tr></thead><tbody><tr><td·style="text-align:·center;"><strong>FLATMAP</strong></td><td·style="text-align:·left;">3</td><td·style="text-align:·center;"><code·class="inline">{a,q,z}</code></td><td·style="text-align:·center;"><code·class="inline">foo</code></td><td·style="text-align:·center;"><code·class="inline">baz</code></td><td·style="text-align:·center;"><code·class="inline">bar</code></td></tr></tbody></table><p><em>Table:·#{a·=>·foo,·q·=>·baz,·z·=>·bar}</em></p><p>Finally,·change·the·value·of·one·element:·<code·class="inline">M#{z·:=·bird}</code>.·The·map·now·looks | 205 | represented:</p><table><thead><tr><th·style="text-align:·center;">0</th><th·style="text-align:·left;">1</th><th·style="text-align:·center;">2</th><th·style="text-align:·center;">3</th><th·style="text-align:·left;">4</th></tr></thead><tbody><tr><td·style="text-align:·center;"><strong>FLATMAP</strong></td><td·style="text-align:·left;">2</td><td·style="text-align:·center;"><code·class="inline">{a,z}</code></td><td·style="text-align:·center;"><code·class="inline">foo</code></td><td·style="text-align:·left;"><code·class="inline">bar</code></td></tr></tbody></table><p><em>Table:·#{a·=>·foo,·z·=>·bar}</em></p><p>Let·us·update·the·map:·<code·class="inline">M#{q·=>·baz}</code>.·The·map·now·looks·like·this:</p><table><thead><tr><th·style="text-align:·center;">0</th><th·style="text-align:·left;">1</th><th·style="text-align:·center;">2</th><th·style="text-align:·center;">3</th><th·style="text-align:·center;">4</th><th·style="text-align:·center;">5</th></tr></thead><tbody><tr><td·style="text-align:·center;"><strong>FLATMAP</strong></td><td·style="text-align:·left;">3</td><td·style="text-align:·center;"><code·class="inline">{a,q,z}</code></td><td·style="text-align:·center;"><code·class="inline">foo</code></td><td·style="text-align:·center;"><code·class="inline">baz</code></td><td·style="text-align:·center;"><code·class="inline">bar</code></td></tr></tbody></table><p><em>Table:·#{a·=>·foo,·q·=>·baz,·z·=>·bar}</em></p><p>Finally,·change·the·value·of·one·element:·<code·class="inline">M#{z·:=·bird}</code>.·The·map·now·looks |
| 206 | like·this:</p><table><thead><tr><th·style="text-align:·center;">0</th><th·style="text-align:·left;">1</th><th·style="text-align:·center;">2</th><th·style="text-align:·center;">3</th><th·style="text-align:·center;">4</th><th·style="text-align:·center;">5</th></tr></thead><tbody><tr><td·style="text-align:·center;"><strong>FLATMAP</strong></td><td·style="text-align:·left;">3</td><td·style="text-align:·center;"><code·class="inline">{a,q,z}</code></td><td·style="text-align:·center;"><code·class="inline">foo</code></td><td·style="text-align:·center;"><code·class="inline">baz</code></td><td·style="text-align:·center;"><code·class="inline">bird</code></td></tr></tbody></table><p><em>Table:·#{a·=>·foo,·q·=>·baz,·z·=>·bird}</em></p><p>When·the·value·for·an·existing·key·is·updated,·the·key·tuple·is·not·updated, | 206 | like·this:</p><table><thead><tr><th·style="text-align:·center;">0</th><th·style="text-align:·left;">1</th><th·style="text-align:·center;">2</th><th·style="text-align:·center;">3</th><th·style="text-align:·center;">4</th><th·style="text-align:·center;">5</th></tr></thead><tbody><tr><td·style="text-align:·center;"><strong>FLATMAP</strong></td><td·style="text-align:·left;">3</td><td·style="text-align:·center;"><code·class="inline">{a,q,z}</code></td><td·style="text-align:·center;"><code·class="inline">foo</code></td><td·style="text-align:·center;"><code·class="inline">baz</code></td><td·style="text-align:·center;"><code·class="inline">bird</code></td></tr></tbody></table><p><em>Table:·#{a·=>·foo,·q·=>·baz,·z·=>·bird}</em></p><p>When·the·value·for·an·existing·key·is·updated,·the·key·tuple·is·not·updated, |
| 207 | allowing·the·key·tuple·to·be·shared·with·other·instances·of·the·map·that·have | 207 | allowing·the·key·tuple·to·be·shared·with·other·instances·of·the·map·that·have |
| 208 | the·same·keys.·In·fact,·the·key·tuple·can·be·shared·between·all·maps·with·the | 208 | the·same·keys.·In·fact,·the·key·tuple·can·be·shared·between·all·maps·with·the |
| 209 | same·keys·with·some·care.·To·arrange·that,·define·a·function·that·returns·a·map. | 209 | same·keys·with·some·care.·To·arrange·that,·define·a·function·that·returns·a·map. |
| 210 | For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">new</span><span·class="p"·data-group-id=" | 210 | For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">new</span><span·class="p"·data-group-id="1088091095-1">(</span><span·class="p"·data-group-id="1088091095-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 211 | ····</span><span·class="p"·data-group-id=" | 211 | ····</span><span·class="p"·data-group-id="1088091095-2">#{</span><span·class="ss">a</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">default</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">b</span><span·class="w">·</span><spa[·...·truncated·by·diffoscope;·len:·300,·SHA:·9d970b031e54a4f3c6b0a55195be2f3cdd4e830aea2c37267263c4e585588c67·...·]-2">}</span><span·class="p">.</span></code></pre><p>Defined·like·this,·the·key·tuple·<code·class="inline">{a,b,c}</code>·will·be·a·global·literal.·To·ensure |
| 212 | that·the·key·tuple·is·shared·when·creating·an·instance·of·the·map,·always·call | 212 | that·the·key·tuple·is·shared·when·creating·an·instance·of·the·map,·always·call |
| 213 | <code·class="inline">new()</code>·and·modify·the·returned·map:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">····</span><span·class="p"·data-group-id=" | 213 | <code·class="inline">new()</code>·and·modify·the·returned·map:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">····</span><span·class="p"·data-group-id="3302755175-1">(</span><span·class="n">SOME_MODULE</span><span·class="p">:</span><span·class="nf">new</span><span·class="p"·data-group-id="3302755175-2">(</span><span·class="p"·data-group-id="3302755175-2">)</span><span·class="p"·data-group-id="3302755175-1[·...·truncated·by·diffoscope;·len:·229,·SHA:·272599210a9edec788f96f124281877a190b29fa06942232130e08cd4d5d988e·...·]-3">}</span><span·class="p">.</span></code></pre><p>Using·the·map·syntax·with·small·maps·is·particularly·efficient.·As·long·as·the |
| 214 | keys·are·known·at·compile-time,·the·map·is·updated·in·one·go,·making·the·time·to | 214 | keys·are·known·at·compile-time,·the·map·is·updated·in·one·go,·making·the·time·to |
| 215 | update·a·map·essentially·constant·regardless·of·the·number·of·keys·updated.·The | 215 | update·a·map·essentially·constant·regardless·of·the·number·of·keys·updated.·The |
| 216 | same·goes·for·matching.·(When·the·keys·are·variables,·one·or·more·of·the·keys | 216 | same·goes·for·matching.·(When·the·keys·are·variables,·one·or·more·of·the·keys |
| 217 | could·be·identical,·so·the·operations·need·to·be·performed·sequentially·from | 217 | could·be·identical,·so·the·operations·need·to·be·performed·sequentially·from |
| 218 | left·to·right.)</p><p>The·memory·size·for·a·small·map·is·the·size·of·all·keys·and·values·plus·5·words. | 218 | left·to·right.)</p><p>The·memory·size·for·a·small·map·is·the·size·of·all·keys·and·values·plus·5·words. |
| 219 | See·<a·href="memory.html">Memory</a>·for·more·information·about·memory·sizes.</p><h3·id="how-large-maps-are-implemented"·class="section-heading"> | 219 | See·<a·href="memory.html">Memory</a>·for·more·information·about·memory·sizes.</p><h3·id="how-large-maps-are-implemented"·class="section-heading"> |
| 220 | ··<a·href="#how-large-maps-are-implemented"·class="hover-link"> | 220 | ··<a·href="#how-large-maps-are-implemented"·class="hover-link"> |
| Offset 241, 21 lines modified | Offset 241, 21 lines modified | ||
| 241 | ··<a·href="#using-the-map-syntax"·class="hover-link"> | 241 | ··<a·href="#using-the-map-syntax"·class="hover-link"> |
| 242 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 242 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 243 | ··</a> | 243 | ··</a> |
| 244 | ··<span·class="text">Using·the·Map·Syntax</span> | 244 | ··<span·class="text">Using·the·Map·Syntax</span> |
| 245 | </h2> | 245 | </h2> |
| 246 | <p>Using·the·map·syntax·is·usually·slightly·more·efficient·than·using·the | 246 | <p>Using·the·map·syntax·is·usually·slightly·more·efficient·than·using·the |
| 247 | corresponding·function·in·the·<a·href="../../lib/stdlib-7.0/doc/html/maps.html"><code·class="inline">maps</code></a>·module.</p><p>The·gain·in·efficiency·for·the·map·syntax·is·more·noticeable·for·the·following | 247 | corresponding·function·in·the·<a·href="../../lib/stdlib-7.0/doc/html/maps.html"><code·class="inline">maps</code></a>·module.</p><p>The·gain·in·efficiency·for·the·map·syntax·is·more·noticeable·for·the·following |
| 248 | operations·that·can·only·be·achieved·using·the·map·syntax:</p><ul><li>Matching·multiple·literal·keys</li><li>Updating·multiple·literal·keys</li><li>Adding·multiple·literal·keys·to·a·map</li></ul><p>For·example:</p><p><strong>DO</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Map</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">Map1</span><span·class="p"·data-group-id=" | 248 | operations·that·can·only·be·achieved·using·the·map·syntax:</p><ul><li>Matching·multiple·literal·keys</li><li>Updating·multiple·literal·keys</li><li>Adding·multiple·literal·keys·to·a·map</li></ul><p>For·example:</p><p><strong>DO</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Map</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">Map1</span><span·class="p"·data-group-id="2021160157-1">#{</span><span·class="ss">x</span><span·class="w">·</span><span·class="p">:=</span><span·class="w">·</span><span·class="n">X</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">y</span><span·class="w">·</span><span·class="p[·...·truncated·by·diffoscope;·len:·820,·SHA:·fb3ee1e71321cf149e9b2b8392df9caeab367b95c98b9e404623e446c846a6d1·...·]-1">)</span><span·class="p">,</span><span·class="w"> |
| 249 | </span><span·class="n">Map3</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">maps</span><span·class="p">:</span><span·class="nf">update</span><span·class="p"·data-group-id="9 | 249 | </span><span·class="n">Map3</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">maps</span><span·class="p">:</span><span·class="nf">update</span><span·class="p"·data-group-id="9931272964-2">(</span><span·class="ss">y</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Y</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Map2</span><span·class="p"·data-group-id="9931272964-2">)</span><span·class="p">,</span><span·class="w"> |
| 250 | </span><span·class="n">Map</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">maps</span><span·class="p">:</span><span·class="nf">update</span><span·class="p"·data-group-id="9 | 250 | </span><span·class="n">Map</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">maps</span><span·class="p">:</span><span·class="nf">update</span><span·class="p"·data-group-id="9931272964-3">(</span><span·class="ss">z</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Z</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Map3</span><span·class="p"·data-group-id="9931272964-3">)</span></code></pre><p>If·the·map·is·a·small·map,·the·first·example·runs·roughly·three·times·as·fast.</p><p>Note·that·for·variable·keys,·the·elements·are·updated·sequentially·from·left·to |
| 251 | right.·For·example,·given·the·following·update·with·variable·keys:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Map</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">Map1</span><span·class="p"·data-group-id=" | 251 | right.·For·example,·given·the·following·update·with·variable·keys:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Map</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">Map1</span><span·class="p"·data-group-id="0744345923-1">#{</span><span·class="n">Key1</span><span·class="w">·</span><span·class="p">:=</span><span·class="w">·</span><span·class="n">X</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Key2</span><span·class="w">·</span><span·clas[·...·truncated·by·diffoscope;·len:·276,·SHA:·8808916e611d9f2b85cd2b5bc038f96ef154ef641070f240fa0ecd0f7080a63d·...·]-1">}</span></code></pre><p>the·compiler·rewrites·it·like·this·to·ensure·that·the·updates·are·applied·from |
| 252 | left·to·right:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Map2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">Map1</span><span·class="p"·data-group-id=" | 252 | left·to·right:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Map2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">Map1</span><span·class="p"·data-group-id="0026022915-1">#{</span><span·class="n">Key1</span><span·class="w">·</span><span·class="p">:=</span><span·class="w">·</span><span·class="n">X</span><span·class="p"·data-group-id="0026022915-1">}</span><span·class="p">,</span><span·class="w"> |
| 253 | </span><span·class="n">Map3</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">Map2</span><span·class="p"·data-group-id=" | 253 | </span><span·class="n">Map3</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">Map2</span><span·class="p"·data-group-id="0026022915-2">#{</span><span·class="n">Key2</span><span·class="w">·</span><span·class="p">:=</span><span·class="w">·</span><span·class="n">Y</span><span·class="p"·data-group-id="0026022915-2">}</span><span·class="p">,</span><span·class="w"> |
| 254 | </span><span·class="n">Map</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">Map3</span><span·class="p"·data-group-id=" | 254 | </span><span·class="n">Map</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">Map3</span><span·class="p"·data-group-id="0026022915-3">#{</span><span·class="n">Key3</span><span·class="w">·</span><span·class="p">:=</span><span·class="w">·</span><span·class="n">Z</span><span·class="p"·data-group-id="0026022915-3">}</span></code></pre><p>If·a·key·is·known·to·exist·in·a·map,·using·the·<code·class="inline">:=</code>·operator·is·slightly·more |
| 255 | efficient·than·using·the·<code·class="inline">=></code>·operator·for·a·small·map.</p><h2·id="using-the-functions-in-the-maps-module"·class="section-heading"> | 255 | efficient·than·using·the·<code·class="inline">=></code>·operator·for·a·small·map.</p><h2·id="using-the-functions-in-the-maps-module"·class="section-heading"> |
| 256 | ··<a·href="#using-the-functions-in-the-maps-module"·class="hover-link"> | 256 | ··<a·href="#using-the-functions-in-the-maps-module"·class="hover-link"> |
| 257 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 257 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 258 | ··</a> | 258 | ··</a> |
| 259 | ··<span·class="text">Using·the·Functions·in·the·maps·Module</span> | 259 | ··<span·class="text">Using·the·Functions·in·the·maps·Module</span> |
| 260 | </h2> | 260 | </h2> |
| 261 | <p>Here·follows·some·notes·about·most·of·the·functions·in·the·<code·class="inline">maps</code>·module.·For | 261 | <p>Here·follows·some·notes·about·most·of·the·functions·in·the·<code·class="inline">maps</code>·module.·For |
| Offset 306, 23 lines modified | Offset 306, 23 lines modified | ||
| 306 | ··<a·href="#maps-get-3"·class="hover-link"> | 306 | ··<a·href="#maps-get-3"·class="hover-link"> |
| 307 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 307 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 308 | ··</a> | 308 | ··</a> |
| 309 | ··<span·class="text">maps:get/3</span> | 309 | ··<span·class="text">maps:get/3</span> |
| 310 | </h3> | 310 | </h3> |
| 311 | <p>As·an·optimization,·the·compiler·will·rewrite·a·call·to·<a·href="../../lib/stdlib-7.0/doc/html/maps.html#get/3"><code·class="inline">maps:get/3</code></a>·to·Erlang | 311 | <p>As·an·optimization,·the·compiler·will·rewrite·a·call·to·<a·href="../../lib/stdlib-7.0/doc/html/maps.html#get/3"><code·class="inline">maps:get/3</code></a>·to·Erlang |
| 312 | code·similar·to·the·following:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Result</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="k">case</span><span·class="w">·</span><span·class="n">Map</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> | 312 | code·similar·to·the·following:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Result</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="k">case</span><span·class="w">·</span><span·class="n">Map</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 313 | ·············</span><span·class="p"·data-group-id=" | 313 | ·············</span><span·class="p"·data-group-id="0148691949-1">#{</span><span·class="n">Key</span><span·class="w">·</span><span·class="p">:=</span><span·class="w">·</span><span·class="n">Value</span><span·class="p"·data-group-id="0148691949-1">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">Value</span><span·class="p">;</span><span·class="w"> |
| 314 | ·············</span><span·class="p"·data-group-id=" | 314 | ·············</span><span·class="p"·data-group-id="0148691949-2">#{</span><span·class="p"·data-group-id="0148691949-2">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">Default</span><span·class="w"> |
| 315 | ·········</span><span·class="k">end</span></code></pre><p>This·is·reasonably·efficient,·but·if·a·small·map·is·used·as·an·alternative·to | 315 | ·········</span><span·class="k">end</span></code></pre><p>This·is·reasonably·efficient,·but·if·a·small·map·is·used·as·an·alternative·to |
| 316 | using·a·record·it·is·often·better·not·to·rely·on·default·values·as·it·prevents | 316 | using·a·record·it·is·often·better·not·to·rely·on·default·values·as·it·prevents |
| 317 | sharing·of·keys,·which·may·in·the·end·use·more·memory·than·what·you·save·from | 317 | sharing·of·keys,·which·may·in·the·end·use·more·memory·than·what·you·save·from |
| 318 | not·storing·default·values·in·the·map.</p><p>If·default·values·are·nevertheless·required,·instead·of·calling·<a·href="../../lib/stdlib-7.0/doc/html/maps.html#get/3"><code·class="inline">maps:get/3</code></a> | 318 | not·storing·default·values·in·the·map.</p><p>If·default·values·are·nevertheless·required,·instead·of·calling·<a·href="../../lib/stdlib-7.0/doc/html/maps.html#get/3"><code·class="inline">maps:get/3</code></a> |
| 319 | multiple·times,·consider·putting·the·default·values·in·a·map·and·merging·that | 319 | multiple·times,·consider·putting·the·default·values·in·a·map·and·merging·that |
| 320 | map·with·the·other·map:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">DefaultMap</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="5 | 320 | map·with·the·other·map:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">DefaultMap</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="5980213551-1">#{</span><span·class="n">Key1</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="n">Value2</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Key2</span><span·class="w">·</span><sp[·...·truncated·by·diffoscope;·len:·419,·SHA:·e3404d24ea5cd66e932b84ed994271fa45d960d0b7a66e7ab293aa73ac146b6d·...·]-1">}</span><span·class="p">,</span><span·class="w"> |
| 321 | </span><span·class="n">MapWithDefaultsApplied</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">maps</span><span·class="p">:</span><span·class="nf">merge</span><span·class="p"·data-group-id="5 | 321 | </span><span·class="n">MapWithDefaultsApplied</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">maps</span><span·class="p">:</span><span·class="nf">merge</span><span·class="p"·data-group-id="5980213551-2">(</span><span·class="n">DefaultMap</span><span·class="p">,</span><span·class="w">·</span><span·class="n">OtherMap</span><span·class="p"·data-group-id="5980213551-2">)</span></code></pre><p>This·helps·share·keys·between·the·default·map·and·the·one·you·applied·defaults |
| 322 | to,·as·long·as·the·default·map·contains·<em>all</em>·the·keys·that·will·ever·be·used | 322 | to,·as·long·as·the·default·map·contains·<em>all</em>·the·keys·that·will·ever·be·used |
| 323 | and·not·just·the·ones·with·default·values.·Whether·this·is·faster·than·calling | 323 | and·not·just·the·ones·with·default·values.·Whether·this·is·faster·than·calling |
| 324 | <a·href="../../lib/stdlib-7.0/doc/html/maps.html#get/3"><code·class="inline">maps:get/3</code></a>·multiple·times·depends·on·the·size·of·the·map·and·the·number·of | 324 | <a·href="../../lib/stdlib-7.0/doc/html/maps.html#get/3"><code·class="inline">maps:get/3</code></a>·multiple·times·depends·on·the·size·of·the·map·and·the·number·of |
| 325 | default·values.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Change</h4><p>Before·OTP·26.0·<a·href="../../lib/stdlib-7.0/doc/html/maps.html#get/3"><code·class="inline">maps:get/3</code></a>·was·implemented·by·calling·the·function·instead | 325 | default·values.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Change</h4><p>Before·OTP·26.0·<a·href="../../lib/stdlib-7.0/doc/html/maps.html#get/3"><code·class="inline">maps:get/3</code></a>·was·implemented·by·calling·the·function·instead |
| 326 | of·rewriting·it·as·an·Erlang·expression.·It·is·now·slightly·faster·but·can·no | 326 | of·rewriting·it·as·an·Erlang·expression.·It·is·now·slightly·faster·but·can·no |
| 327 | longer·be·traced.</p></section><h3·id="maps-intersect-2-maps-intersect_with-3"·class="section-heading"> | 327 | longer·be·traced.</p></section><h3·id="maps-intersect-2-maps-intersect_with-3"·class="section-heading"> |
| 328 | ··<a·href="#maps-intersect-2-maps-intersect_with-3"·class="hover-link"> | 328 | ··<a·href="#maps-intersect-2-maps-intersect_with-3"·class="hover-link"> |
| Offset 410, 29 lines modified | Offset 410, 29 lines modified | ||
| 410 | ··<a·href="#maps-put-3"·class="hover-link"> | 410 | ··<a·href="#maps-put-3"·class="hover-link"> |
| 411 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 411 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 412 | ··</a> | 412 | ··</a> |
| 413 | ··<span·class="text">maps:put/3</span> | 413 | ··<span·class="text">maps:put/3</span> |
| 414 | </h3> | 414 | </h3> |
| 415 | <p><a·href="../../lib/stdlib-7.0/doc/html/maps.html#put/3"><code·class="inline">maps:put/3</code></a>·is·implemented·in·C.</p><p>If·the·key·is·known·to·already·exist·in·the·map,·<a·href="../../lib/stdlib-7.0/doc/html/maps.html#update/3"><code·class="inline">maps:update/3</code></a>·is·slightly | 415 | <p><a·href="../../lib/stdlib-7.0/doc/html/maps.html#put/3"><code·class="inline">maps:put/3</code></a>·is·implemented·in·C.</p><p>If·the·key·is·known·to·already·exist·in·the·map,·<a·href="../../lib/stdlib-7.0/doc/html/maps.html#update/3"><code·class="inline">maps:update/3</code></a>·is·slightly |
| 416 | more·efficient·than·<a·href="../../lib/stdlib-7.0/doc/html/maps.html#put/3"><code·class="inline">maps:put/3</code></a>.</p><p>If·the·compiler·can·determine·that·the·third·argument·is·always·a·map,·it | 416 | more·efficient·than·<a·href="../../lib/stdlib-7.0/doc/html/maps.html#put/3"><code·class="inline">maps:put/3</code></a>.</p><p>If·the·compiler·can·determine·that·the·third·argument·is·always·a·map,·it |
| 417 | will·rewrite·the·call·to·<a·href="../../lib/stdlib-7.0/doc/html/maps.html#put/3"><code·class="inline">maps:put/3</code></a>·to·use·the·map·syntax·for·updating·the·map.</p><p>For·example,·consider·the·following·function:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">add_to_known_map</span><span·class="p"·data-group-id=" | 417 | will·rewrite·the·call·to·<a·href="../../lib/stdlib-7.0/doc/html/maps.html#put/3"><code·class="inline">maps:put/3</code></a>·to·use·the·map·syntax·for·updating·the·map.</p><p>For·example,·consider·the·following·function:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">add_to_known_map</span><span·class="p"·data-group-id="9686119663-1">(</span><span·class="n">Map0</span><span·class="p">,</span><span·class="w">·</span><span·class="n">A</span><span·class="p">,</span><span·class="w">·</span><span·class="n">B</span><span·class="p">,</span><span·class="w">·</span><span·class="n"[·...·truncated·by·diffoscope;·len:·288,·SHA:·5502c2078d41fb90da5a80138b4042e37ccff18a577a41986a7c892925e9d1ac·...·]-2">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 418 | ····</span><span·class="n">Map1</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">maps</span><span·class="p">:</span><span·class="nf">put</span><span·class="p"·data-group-id=" | 418 | ····</span><span·class="n">Map1</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">maps</span><span·class="p">:</span><span·class="nf">put</span><span·class="p"·data-group-id="9686119663-3">(</span><span·class="ss">a</span><span·class="p">,</span><span·class="w">·</span><span·class="n">A</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Map0</span><span·class="p"·data-group-id="9686119663-3">)</span><span·class="p">,</span><span·class="w"> |
| 419 | ····</span><span·class="n">Map2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">maps</span><span·class="p">:</span><span·class="nf">put</span><span·class="p"·data-group-id=" | 419 | ····</span><span·class="n">Map2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">maps</span><span·class="p">:</span><span·class="nf">put</span><span·class="p"·data-group-id="9686119663-4">(</span><span·class="ss">b</span><span·class="p">,</span><span·class="w">·</span><span·class="n">B</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Map1</span><span·class="p"·data-group-id="9686119663-4">)</span><span·class="p">,</span><span·class="w"> |
| 420 | ····</span><span·class="nc">maps</span><span·class="p">:</span><span·class="nf">put</span><span·class="p"·data-group-id=" | 420 | ····</span><span·class="nc">maps</span><span·class="p">:</span><span·class="nf">put</span><span·class="p"·data-group-id="9686119663-5">(</span><span·class="ss">c</span><span·class="p">,</span><span·class="w">·</span><span·class="n">C</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Map2</span><span·class="p"·data-group-id="9686119663-5">)</span><span·class="p">.</span></code></pre><p>The·compiler·first·rewrites·each·call·to·<a·href="../../lib/stdlib-7.0/doc/html/maps.html#put/3"><code·class="inline">maps:put/3</code></a>·to·use·the·map |
| 421 | syntax,·and·subsequently·combines·the·three·update·operations·to·a | 421 | syntax,·and·subsequently·combines·the·three·update·operations·to·a |
| 422 | single·update·operation:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">add_to_known_map</span><span·class="p"·data-group-id=" | 422 | single·update·operation:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">add_to_known_map</span><span·class="p"·data-group-id="0132263690-1">(</span><span·class="n">Map0</span><span·class="p">,</span><span·class="w">·</span><span·class="n">A</span><span·class="p">,</span><span·class="w">·</span><span·class="n">B</span><span·class="p">,</span><span·class="w">·</span><span·class="n"[·...·truncated·by·diffoscope;·len:·288,·SHA:·04d0f0d2d952e86e121ca0c13455434a468ad5f0ef0b2b67175b23cd9f9bd1e4·...·]-2">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 423 | ····</span><span·class="n">Map0</span><span·class="p"·data-group-id=" | 423 | ····</span><span·class="n">Map0</span><span·class="p"·data-group-id="0132263690-3">#{</span><span·class="ss">a</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="n">A</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">b</span><span·class="w">·</span><span·class[·...·truncated·by·diffoscope;·len:·279,·SHA:·1c5801b4f58a20fbb4001362de3cfc67f421b4225cab0c524787f2aa7d8dc82a·...·]-3">}</span><span·class="p">.</span></code></pre><p>If·the·compiler·cannot·determine·that·the·third·argument·is·always·a |
| 424 | map,·it·retains·the·<a·href="../../lib/stdlib-7.0/doc/html/maps.html#put/3"><code·class="inline">maps:put/3</code></a>·call.·For·example,·given·this | 424 | map,·it·retains·the·<a·href="../../lib/stdlib-7.0/doc/html/maps.html#put/3"><code·class="inline">maps:put/3</code></a>·call.·For·example,·given·this |
| 425 | function:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">add_to_map</span><span·class="p"·data-group-id=" | 425 | function:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">add_to_map</span><span·class="p"·data-group-id="1539370441-1">(</span><span·class="n">Map0</span><span·class="p">,</span><span·class="w">·</span><span·class="n">A</span><span·class="p">,</span><span·class="w">·</span><span·class="n">B</span><span·class="p">,</span><span·class="w">·</span><span·class="n"[·...·truncated·by·diffoscope;·len:·50,·SHA:·4cc4ec90aa2382dc7eaf21afe8727b70ba1b0cfb83d3ca773e5944c85a6f36a5·...·]-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 426 | ····</span><span·class="n">Map1</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">maps</span><span·class="p">:</span><span·class="nf">put</span><span·class="p"·data-group-id=" | 426 | ····</span><span·class="n">Map1</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">maps</span><span·class="p">:</span><span·class="nf">put</span><span·class="p"·data-group-id="1539370441-2">(</span><span·class="ss">a</span><span·class="p">,</span><span·class="w">·</span><span·class="n">A</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Map0</span><span·class="p"·data-group-id="1539370441-2">)</span><span·class="p">,</span><span·class="w"> |
| 427 | ····</span><span·class="n">Map2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">maps</span><span·class="p">:</span><span·class="nf">put</span><span·class="p"·data-group-id=" | 427 | ····</span><span·class="n">Map2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">maps</span><span·class="p">:</span><span·class="nf">put</span><span·class="p"·data-group-id="1539370441-3">(</span><span·class="ss">b</span><span·class="p">,</span><span·class="w">·</span><span·class="n">B</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Map1</span><span·class="p"·data-group-id="1539370441-3">)</span><span·class="p">,</span><span·class="w"> |
| 428 | ····</span><span·class="nc">maps</span><span·class="p">:</span><span·class="nf">put</span><span·class="p"·data-group-id=" | 428 | ····</span><span·class="nc">maps</span><span·class="p">:</span><span·class="nf">put</span><span·class="p"·data-group-id="1539370441-4">(</span><span·class="ss">c</span><span·class="p">,</span><span·class="w">·</span><span·class="n">C</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Map2</span><span·class="p"·data-group-id="1539370441-4">)</span><span·class="p">.</span></code></pre><p>the·compiler·keeps·the·first·call·to·<a·href="../../lib/stdlib-7.0/doc/html/maps.html#put/3"><code·class="inline">maps:put/3</code></a>,·but·rewrites |
| 429 | and·combines·the·other·two·calls:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">add_to_map</span><span·class="p"·data-group-id=" | 429 | and·combines·the·other·two·calls:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">add_to_map</span><span·class="p"·data-group-id="6800674773-1">(</span><span·class="n">Map0</span><span·class="p">,</span><span·class="w">·</span><span·class="n">A</span><span·class="p">,</span><span·class="w">·</span><span·class="n">B</span><span·class="p">,</span><span·class="w">·</span><span·class="n"[·...·truncated·by·diffoscope;·len:·49,·SHA:·02354444298f4cd5600d4dc02998161a5fc80459d40927bc758f19090a0e5383·...·]3-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 430 | ····</span><span·class="n">Map1</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">maps</span><span·class="p">:</span><span·class="nf">put</span><span·class="p"·data-group-id=" | 430 | ····</span><span·class="n">Map1</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">maps</span><span·class="p">:</span><span·class="nf">put</span><span·class="p"·data-group-id="6800674773-2">(</span><span·class="ss">a</span><span·class="p">,</span><span·class="w">·</span><span·class="n">A</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Map0</span><span·class="p"·data-group-id="6800674773-2">)</span><span·class="p">,</span><span·class="w"> |
| 431 | ····</span><span·class="n">Map1</span><span·class="p"·data-group-id=" | 431 | ····</span><span·class="n">Map1</span><span·class="p"·data-group-id="6800674773-3">#{</span><span·class="ss">b</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="n">B</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">c</span><span·class="w">·</span><span·class[·...·truncated·by·diffoscope;·len:·105,·SHA:·36823e37beb1e2efc2ef34a53aa0b4f1a048b9c009eb6fe17483ad4d96ef74c8·...·]3-3">}</span><span·class="p">.</span></code></pre><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Change</h4><p>The·rewriting·of·<a·href="../../lib/stdlib-7.0/doc/html/maps.html#put/3"><code·class="inline">maps:put/3</code></a>·to·the·map·syntax·was·introduced·in |
| 432 | Erlang/OTP·28.</p></section><h3·id="maps-remove-2"·class="section-heading"> | 432 | Erlang/OTP·28.</p></section><h3·id="maps-remove-2"·class="section-heading"> |
| 433 | ··<a·href="#maps-remove-2"·class="hover-link"> | 433 | ··<a·href="#maps-remove-2"·class="hover-link"> |
| 434 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 434 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
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| 218 | ······<p·class="built-using"> | 218 | ······<p·class="built-using"> |
| 219 | ········Built·using | 219 | ········Built·using |
| 220 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 220 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 221 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 221 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 222 | ······</p> | 222 | ······</p> |
| 223 | <p>Copyright·©·1996-202 | 223 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 224 | ····</footer> | 224 | ····</footer> |
| 225 | ··</div> | 225 | ··</div> |
| 226 | </main> | 226 | </main> |
| 227 | </div> | 227 | </div> |
| 228 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 228 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 229 | ··<script> | 229 | ··<script> |
| 230 | ··let·initialized·=·false; | 230 | ··let·initialized·=·false; |
| Offset 237, 15 lines modified | Offset 237, 15 lines modified | ||
| 237 | ······<p·class="built-using"> | 237 | ······<p·class="built-using"> |
| 238 | ········Built·using | 238 | ········Built·using |
| 239 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 239 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 240 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 240 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 241 | ······</p> | 241 | ······</p> |
| 242 | <p>Copyright·©·1996-202 | 242 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 243 | ····</footer> | 243 | ····</footer> |
| 244 | ··</div> | 244 | ··</div> |
| 245 | </main> | 245 | </main> |
| 246 | </div> | 246 | </div> |
| 247 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 247 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 248 | ··<script> | 248 | ··<script> |
| 249 | ··let·initialized·=·false; | 249 | ··let·initialized·=·false; |
| Offset 118, 20 lines modified | Offset 118, 20 lines modified | ||
| 118 | <h2·id="module-syntax"·class="section-heading"> | 118 | <h2·id="module-syntax"·class="section-heading"> |
| 119 | ··<a·href="#module-syntax"·class="hover-link"> | 119 | ··<a·href="#module-syntax"·class="hover-link"> |
| 120 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 120 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 121 | ··</a> | 121 | ··</a> |
| 122 | ··<span·class="text">Module·Syntax</span> | 122 | ··<span·class="text">Module·Syntax</span> |
| 123 | </h2> | 123 | </h2> |
| 124 | <p>Erlang·code·is·divided·into·<em>modules</em>.·A·module·consists·of·a·sequence·of | 124 | <p>Erlang·code·is·divided·into·<em>modules</em>.·A·module·consists·of·a·sequence·of |
| 125 | attributes·and·function·declarations,·each·terminated·by·a·period·(<code·class="inline">.</code>).</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="89 | 125 | attributes·and·function·declarations,·each·terminated·by·a·period·(<code·class="inline">.</code>).</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="6489112481-1">(</span><span·class="ss">m</span><span·class="p"·data-group-id="6489112481-1">)</span><span·class="p">.</span><span·class="w">··········</span><span·class="c1">%·module·attribute</span><span·class="w"> |
| 126 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="89 | 126 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="6489112481-2">(</span><span·class="p"·data-group-id="6489112481-3">[</span><span·class="ss">fact</span><span·class="p">/</span><span·class="mi">1</span><span·class="p"·data-group-id="6489112481-3">]</span><span·class="p"·data-group-id="6489112481-2">)</span><span·class="p">.</span><span·class="w">···</span><span·class="c1">%·module·attribute</span><span·class="w"> |
| 127 | </span><span·class="nf">fact</span><span·class="p"·data-group-id="89 | 127 | </span><span·class="nf">fact</span><span·class="p"·data-group-id="6489112481-4">(</span><span·class="n">N</span><span·class="p"·data-group-id="6489112481-4">)</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><span·class="n">N</span><span·class="o">></span><span·class="mi">0</span><span·class="w">·</span><span·class="p">-></span><span·class="w">··</span><span·class="c1">%·beginning·of·function·declaration</span><span·class="w"> |
| 128 | ····</span><span·class="n">N</span><span·class="w">·</span><span·class="o">*</span><span·class="w">·</span><span·class="nf">fact</span><span·class="p"·data-group-id="89 | 128 | ····</span><span·class="n">N</span><span·class="w">·</span><span·class="o">*</span><span·class="w">·</span><span·class="nf">fact</span><span·class="p"·data-group-id="6489112481-5">(</span><span·class="n">N</span><span·class="o">-</span><span·class="mi">1</span><span·class="p"·data-group-id="6489112481-5">)</span><span·class="p">;</span><span·class="w">···</span><span·class="c1">%··|</span><span·class="w"> |
| 129 | </span><span·class="nf">fact</span><span·class="p"·data-group-id="89 | 129 | </span><span·class="nf">fact</span><span·class="p"·data-group-id="6489112481-6">(</span><span·class="mi">0</span><span·class="p"·data-group-id="6489112481-6">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">···········</span><span·class="c1">%··|</span><span·class="w"> |
| 130 | ····</span><span·class="mi">1</span><span·class="p">.</span><span·class="w">···············</span><span·class="c1">%·end·of·function·declaration</span></code></pre><p>For·a·description·of·function·declarations,·see | 130 | ····</span><span·class="mi">1</span><span·class="p">.</span><span·class="w">···············</span><span·class="c1">%·end·of·function·declaration</span></code></pre><p>For·a·description·of·function·declarations,·see |
| 131 | <a·href="ref_man_functions.html">Function·Declaration·Syntax</a>.</p><h2·id="module-attributes"·class="section-heading"> | 131 | <a·href="ref_man_functions.html">Function·Declaration·Syntax</a>.</p><h2·id="module-attributes"·class="section-heading"> |
| 132 | ··<a·href="#module-attributes"·class="hover-link"> | 132 | ··<a·href="#module-attributes"·class="hover-link"> |
| 133 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 133 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 134 | ··</a> | 134 | ··</a> |
| 135 | ··<span·class="text">Module·Attributes</span> | 135 | ··<span·class="text">Module·Attributes</span> |
| 136 | </h2> | 136 | </h2> |
| Offset 176, 71 lines modified | Offset 176, 71 lines modified | ||
| 176 | meaning.</p></section></li></ul><h3·id="behaviour-module-attribute"·class="section-heading"> | 176 | meaning.</p></section></li></ul><h3·id="behaviour-module-attribute"·class="section-heading"> |
| 177 | ··<a·href="#behaviour-module-attribute"·class="hover-link"> | 177 | ··<a·href="#behaviour-module-attribute"·class="hover-link"> |
| 178 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 178 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 179 | ··</a> | 179 | ··</a> |
| 180 | ··<span·class="text">Behaviour·Module·Attribute</span> | 180 | ··<span·class="text">Behaviour·Module·Attribute</span> |
| 181 | </h3> | 181 | </h3> |
| 182 | <p>It·is·possible·to·specify·that·the·module·is·the·callback·module·for·a | 182 | <p>It·is·possible·to·specify·that·the·module·is·the·callback·module·for·a |
| 183 | <em>behaviour</em>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">behaviour</span><span·class="p"·data-group-id="2 | 183 | <em>behaviour</em>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">behaviour</span><span·class="p"·data-group-id="2238768688-1">(</span><span·class="n">Behaviour</span><span·class="p"·data-group-id="2238768688-1">)</span><span·class="p">.</span></code></pre><p>The·atom·<code·class="inline">Behaviour</code>·gives·the·name·of·the·behaviour,·which·can·be·a |
| 184 | user-defined·behaviour·or·one·of·the·following·OTP·standard·behaviours:</p><ul><li><code·class="inline">gen_server</code></li><li><code·class="inline">gen_statem</code></li><li><code·class="inline">gen_event</code></li><li><code·class="inline">supervisor</code></li></ul><p>The·spelling·<code·class="inline">behavior</code>·is·also·accepted.</p><p>The·callback·functions·of·the·module·can·be·specified·either·directly·by·the | 184 | user-defined·behaviour·or·one·of·the·following·OTP·standard·behaviours:</p><ul><li><code·class="inline">gen_server</code></li><li><code·class="inline">gen_statem</code></li><li><code·class="inline">gen_event</code></li><li><code·class="inline">supervisor</code></li></ul><p>The·spelling·<code·class="inline">behavior</code>·is·also·accepted.</p><p>The·callback·functions·of·the·module·can·be·specified·either·directly·by·the |
| 185 | exported·function·<code·class="inline">behaviour_info/1</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">behaviour_info</span><span·class="p"·data-group-id=" | 185 | exported·function·<code·class="inline">behaviour_info/1</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">behaviour_info</span><span·class="p"·data-group-id="1565984635-1">(</span><span·class="ss">callbacks</span><span·class="p"·data-group-id="1565984635-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">Callbacks</span><span·class="p">.</span></code></pre><p>[·...·truncated·by·diffoscope;·len:·368,·SHA:·6ff59f9787b41bf03a43a443acef706011db723109ab06544698ac6e1b4a9e81·...·]-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">Result</span><span·class="p">.</span></code></pre><p>Here,·<code·class="inline">Arguments</code>·is·a·list·of·zero·or·more·arguments.·The·<code·class="inline">-callback</code>·attribute |
| 186 | is·to·be·preferred·since·the·extra·type·information·can·be·used·by·tools·to | 186 | is·to·be·preferred·since·the·extra·type·information·can·be·used·by·tools·to |
| 187 | produce·documentation·or·find·discrepancies.</p><p>Read·more·about·behaviours·and·callback·modules·in | 187 | produce·documentation·or·find·discrepancies.</p><p>Read·more·about·behaviours·and·callback·modules·in |
| 188 | <a·href="../../doc/system/design_principles.html#behaviours">OTP·Design·Principles</a>.</p><h3·id="record-definitions"·class="section-heading"> | 188 | <a·href="../../doc/system/design_principles.html#behaviours">OTP·Design·Principles</a>.</p><h3·id="record-definitions"·class="section-heading"> |
| 189 | ··<a·href="#record-definitions"·class="hover-link"> | 189 | ··<a·href="#record-definitions"·class="hover-link"> |
| 190 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 190 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 191 | ··</a> | 191 | ··</a> |
| 192 | ··<span·class="text">Record·Definitions</span> | 192 | ··<span·class="text">Record·Definitions</span> |
| 193 | </h3> | 193 | </h3> |
| 194 | <p>The·same·syntax·as·for·module·attributes·is·used·for·record·definitions:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id=" | 194 | <p>The·same·syntax·as·for·module·attributes·is·used·for·record·definitions:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id="5274286519-1">(</span><span·class="n">Record</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Fields</span><span·class="p"·data-group-id="5274286519-1">)</span><span·class="p">.</span></code></pre><p>Record·definitions·are·allowed·anywhere·in·a·module,·also·among·the·function |
| 195 | declarations.·Read·more·in·<a·href="ref_man_records.html">Records</a>.</p><h3·id="preprocessor"·class="section-heading"> | 195 | declarations.·Read·more·in·<a·href="ref_man_records.html">Records</a>.</p><h3·id="preprocessor"·class="section-heading"> |
| 196 | ··<a·href="#preprocessor"·class="hover-link"> | 196 | ··<a·href="#preprocessor"·class="hover-link"> |
| 197 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 197 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 198 | ··</a> | 198 | ··</a> |
| 199 | ··<span·class="text">Preprocessor</span> | 199 | ··<span·class="text">Preprocessor</span> |
| 200 | </h3> | 200 | </h3> |
| 201 | <p>The·same·syntax·as·for·module·attributes·is·used·by·the·preprocessor,·which | 201 | <p>The·same·syntax·as·for·module·attributes·is·used·by·the·preprocessor,·which |
| 202 | supports·file·inclusion,·macros,·and·conditional·compilation:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">include</span><span·class="p"·data-group-id=" | 202 | supports·file·inclusion,·macros,·and·conditional·compilation:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">include</span><span·class="p"·data-group-id="0444094237-1">(</span><span·class="s">"SomeFile.hrl"</span><span·class="p"·data-group-id="0444094237-1">)</span><span·class="p">.</span><span·class="w"> |
| 203 | </span><span·class="p">-</span><span·class="na">define</span><span·class="p"·data-group-id=" | 203 | </span><span·class="p">-</span><span·class="na">define</span><span·class="p"·data-group-id="0444094237-2">(</span><span·class="n">Macro</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Replacement</span><span·class="p"·data-group-id="0444094237-2">)</span><span·class="p">.</span></code></pre><p>Read·more·in·<a·href="macros.html">Preprocessor</a>.</p><h3·id="setting-file-and-line"·class="section-heading"> |
| 204 | ··<a·href="#setting-file-and-line"·class="hover-link"> | 204 | ··<a·href="#setting-file-and-line"·class="hover-link"> |
| 205 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 205 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 206 | ··</a> | 206 | ··</a> |
| 207 | ··<span·class="text">Setting·File·and·Line</span> | 207 | ··<span·class="text">Setting·File·and·Line</span> |
| 208 | </h3> | 208 | </h3> |
| 209 | <p>The·same·syntax·as·for·module·attributes·is·used·for·changing·the·pre-defined | 209 | <p>The·same·syntax·as·for·module·attributes·is·used·for·changing·the·pre-defined |
| 210 | macros·<code·class="inline">?FILE</code>·and·<code·class="inline">?LINE</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">file</span><span·class="p"·data-group-id=" | 210 | macros·<code·class="inline">?FILE</code>·and·<code·class="inline">?LINE</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">file</span><span·class="p"·data-group-id="9027951255-1">(</span><span·class="n">File</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Line</span><span·class="p"·data-group-id="9027951255-1">)</span><span·class="p">.</span></code></pre><p>This·attribute·is·used·by·tools,·such·as·Yecc,·to·inform·the·compiler·that·the |
| 211 | source·program·is·generated·by·another·tool.·It·also·indicates·the | 211 | source·program·is·generated·by·another·tool.·It·also·indicates·the |
| 212 | correspondence·of·source·files·to·lines·of·the·original·user-written·file,·from | 212 | correspondence·of·source·files·to·lines·of·the·original·user-written·file,·from |
| 213 | which·the·source·program·is·produced.</p><h3·id="types-and-function-specifications"·class="section-heading"> | 213 | which·the·source·program·is·produced.</p><h3·id="types-and-function-specifications"·class="section-heading"> |
| 214 | ··<a·href="#types-and-function-specifications"·class="hover-link"> | 214 | ··<a·href="#types-and-function-specifications"·class="hover-link"> |
| 215 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 215 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 216 | ··</a> | 216 | ··</a> |
| 217 | ··<span·class="text">Types·and·function·specifications</span> | 217 | ··<span·class="text">Types·and·function·specifications</span> |
| 218 | </h3> | 218 | </h3> |
| 219 | <p>A·similar·syntax·as·for·module·attributes·is·used·for·specifying·types·and | 219 | <p>A·similar·syntax·as·for·module·attributes·is·used·for·specifying·types·and |
| 220 | function·specifications:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">type</span><span·class="w">·</span><span·class="nf">my_type</span><span·class="p"·data-group-id="8109124408-1">(</span><span·class="p"·data-group-id="8109124408-1">)</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">atom</span><span·class="p"·data-group-id="8109124408-2">(</span><span·class="p"·data-group-id="8109124408-2">)</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="8109124408-3">(</span><span·class="p"·data-group-id="8109124408-3">)</span><span·class="p">.</span><span·class="w"> | ||
| 221 | 220 | function·specifications:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">type</span><span·class="w">·</span><span·class="nf">my_type</span><span·class="p"·data-group-id="7383244640-1">(</span><span·class="p"·data[·...·truncated·by·diffoscope;·len:·512,·SHA:·55d5406729631a96cacdb3ea41ce796aabff544974ee8ebfdf4b333a0faaed5e·...·] | |
| 221 | </span><span·class="p">-</span><span·class="na">spec</span><span·class="w">·</span><span·class="nf">my_function</span><span·class="p"·data-group-id="7383244640-4">(</span><span·class="nf">integer</span><span·class="p"·data-group-id="7383244640-5">(</span><span·class="p"·data-group-id="7383244640-5">)</span><span·class="p"·data-group-id="7383244640-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="7383244640-6">(</span><span·class="p"·data-group-id="7383244640-6">)</span><span·class="p">.</span></code></pre><p>Read·more·in·<a·href="typespec.html">Types·and·Function·specifications</a>.</p><p>The·description·is·based·on | ||
| 222 | <a·href="http://www.erlang.org/eeps/eep-0008.html">EEP8·-·Types·and·function·specifications</a>, | 222 | <a·href="http://www.erlang.org/eeps/eep-0008.html">EEP8·-·Types·and·function·specifications</a>, |
| 223 | which·is·not·to·be·further·updated.</p><h3·id="documentation-attributes"·class="section-heading"> | 223 | which·is·not·to·be·further·updated.</p><h3·id="documentation-attributes"·class="section-heading"> |
| 224 | ··<a·href="#documentation-attributes"·class="hover-link"> | 224 | ··<a·href="#documentation-attributes"·class="hover-link"> |
| 225 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 225 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 226 | ··</a> | 226 | ··</a> |
| 227 | ··<span·class="text">Documentation·attributes</span> | 227 | ··<span·class="text">Documentation·attributes</span> |
| 228 | </h3> | 228 | </h3> |
| 229 | <p>The·module·attribute·<code·class="inline">-doc(Documentation)</code>·is·used·to·provide·user·documentation | 229 | <p>The·module·attribute·<code·class="inline">-doc(Documentation)</code>·is·used·to·provide·user·documentation |
| 230 | for·a·function/type/callback:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">doc</span><span·class="p"·data-group-id=" | 230 | for·a·function/type/callback:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">doc</span><span·class="p"·data-group-id="0125186128-1">(</span><span·class="s">"Example·documentation"</span><span·class="p"·data-group-id="0125186128-1">)</span><span·class="p">.</span><span·class="w"> |
| 231 | </span><span·class="nf">example</span><span·class="p"·data-group-id=" | 231 | </span><span·class="nf">example</span><span·class="p"·data-group-id="0125186128-2">(</span><span·class="p"·data-group-id="0125186128-2">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">ok</span><span·class="p">.</span></code></pre><p>The·attribute·should·be·placed·just·before·the·entity·it·documents.The |
| 232 | parenthesis·are·optional·around·<code·class="inline">Documentation</code>.·The·allowed·values·for | 232 | parenthesis·are·optional·around·<code·class="inline">Documentation</code>.·The·allowed·values·for |
| 233 | <code·class="inline">Documentation</code>·are:</p><ul><li><p><strong><a·href="data_types.html#string">literal·string</a>·or | 233 | <code·class="inline">Documentation</code>·are:</p><ul><li><p><strong><a·href="data_types.html#string">literal·string</a>·or |
| 234 | <a·href="expressions.html#unicode-segments">utf-8·encoded·binary·string</a></strong>·-·The·string | 234 | <a·href="expressions.html#unicode-segments">utf-8·encoded·binary·string</a></strong>·-·The·string |
| 235 | documenting·the·entity.·Any·literal·string·is·allowed,·so·both | 235 | documenting·the·entity.·Any·literal·string·is·allowed,·so·both |
| 236 | <a·href="data_types.html#tqstring">triple·quoted·strings</a>·and | 236 | <a·href="data_types.html#tqstring">triple·quoted·strings</a>·and |
| 237 | <a·href="data_types.html#sigil">sigils</a>·that·translate·to·literal·strings·can·be·used. | 237 | <a·href="data_types.html#sigil">sigils</a>·that·translate·to·literal·strings·can·be·used. |
| 238 | The·following·examples·are·equivalent:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">doc</span><span·class="p"·data-group-id=" | 238 | The·following·examples·are·equivalent:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">doc</span><span·class="p"·data-group-id="6028401195-1">(</span><span·class="s">"Example·\"docs\""</span><span·class="p"·data-group-id="6028401195-1">)</span><span·class="p">.</span><span·class="w"> |
| 239 | </span><span·class="p">-</span><span·class="na">doc</span><span·class="p"·data-group-id=" | 239 | </span><span·class="p">-</span><span·class="na">doc</span><span·class="p"·data-group-id="6028401195-2">(</span><span·class="p"·data-group-id="6028401195-3"><<</span><span·class="s">"Example·\"docs\""</span><span·class="o">/</span><span·class="ss">utf8</span><span·class="p"·data-group-id="6028401195-3">>></span><[·...·truncated·by·diffoscope;·len:·40,·SHA:·91ba5f64100f695d7233b615a16b241ba855b3193f30bc8fc3e810e50b0588f1·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 240 | </span><span·class="p">-</span><span·class="na">doc</span><span·class="w">·</span><span·class="s">~S/Example·"docs"/</span><span·class="p">.</span><span·class="w"> | 240 | </span><span·class="p">-</span><span·class="na">doc</span><span·class="w">·</span><span·class="s">~S/Example·"docs"/</span><span·class="p">.</span><span·class="w"> |
| 241 | </span><span·class="p">-</span><span·class="na">doc</span><span·class="w">·</span><span·class="s">""</span><span·class="s">" | 241 | </span><span·class="p">-</span><span·class="na">doc</span><span·class="w">·</span><span·class="s">""</span><span·class="s">" |
| 242 | ···Example·"</span><span·class="ss">docs</span><span·class="s">" | 242 | ···Example·"</span><span·class="ss">docs</span><span·class="s">" |
| 243 | ···"</span><span·class="s">""</span><span·class="w"> | 243 | ···"</span><span·class="s">""</span><span·class="w"> |
| 244 | </span><span·class="p">-</span><span·class="na">doc</span><span·class="w">·</span><span·class="s">~B|Example·"docs"|</span><span·class="p">.</span></code></pre><p>For·clarity·it·is·recommended·to·use·either·normal·<code·class="inline">"strings"</code>·or·triple | 244 | </span><span·class="p">-</span><span·class="na">doc</span><span·class="w">·</span><span·class="s">~B|Example·"docs"|</span><span·class="p">.</span></code></pre><p>For·clarity·it·is·recommended·to·use·either·normal·<code·class="inline">"strings"</code>·or·triple |
| 245 | quoted·strings·for·documentation·attributes.</p></li><li><p><strong><code·class="inline">{file,</code>·<a·href="../../lib/kernel-10.3/doc/html/file.html#t:name/0"><code·class="inline">file:name/0</code></a>·<code·class="inline">}</code></strong>·-·Read·the·contents·of·filename·and·use | 245 | quoted·strings·for·documentation·attributes.</p></li><li><p><strong><code·class="inline">{file,</code>·<a·href="../../lib/kernel-10.3/doc/html/file.html#t:name/0"><code·class="inline">file:name/0</code></a>·<code·class="inline">}</code></strong>·-·Read·the·contents·of·filename·and·use |
| 246 | that·as·the·documentation·string.</p></li><li><p><strong><code·class="inline">false</code></strong>·-·Set·the·current·entity·as·hidden,·that·is,·it·should·not·be | 246 | that·as·the·documentation·string.</p></li><li><p><strong><code·class="inline">false</code></strong>·-·Set·the·current·entity·as·hidden,·that·is,·it·should·not·be |
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| 253 | ··<a·href="#the-feature-directive"·class="hover-link"> | 253 | ··<a·href="#the-feature-directive"·class="hover-link"> |
| 254 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 254 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 255 | ··</a> | 255 | ··</a> |
| 256 | ··<span·class="text">The·feature·directive</span> | 256 | ··<span·class="text">The·feature·directive</span> |
| 257 | </h2> | 257 | </h2> |
| 258 | <p>While·not·a·module·attribute,·but·rather·a·directive·(since·it·might·affect | 258 | <p>While·not·a·module·attribute,·but·rather·a·directive·(since·it·might·affect |
| 259 | syntax),·there·is·the·<code·class="inline">-feature(..)</code>·directive·used·for·enabling·and·disabling | 259 | syntax),·there·is·the·<code·class="inline">-feature(..)</code>·directive·used·for·enabling·and·disabling |
| 260 | <a·href="../../doc/system/features.html#features">features</a>.</p><p>The·syntax·is·similar·to·that·of·an·attribute,·but·has·two·arguments:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">feature</span><span·class="p"·data-group-id="2 | 260 | <a·href="../../doc/system/features.html#features">features</a>.</p><p>The·syntax·is·similar·to·that·of·an·attribute,·but·has·two·arguments:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">feature</span><span·class="p"·data-group-id="2993894845-1">(</span><span·class="n">FeatureName</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">enable</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">disable</span><span·class="p"·data[·...·truncated·by·diffoscope;·len:·21,·SHA:·ac2c74a1605e0636605126c45bcb45d908ddbfac56622b4c334a1ca129d4514f·...·]-1">)</span><span·class="p">.</span></code></pre><p>Note·that·the·<a·href="macros.html#feature-directive">feature·directive</a>·can·only·appear |
| 261 | in·a·prefix·of·the·module.</p><h2·id="comments"·class="section-heading"> | 261 | in·a·prefix·of·the·module.</p><h2·id="comments"·class="section-heading"> |
| 262 | ··<a·href="#comments"·class="hover-link"> | 262 | ··<a·href="#comments"·class="hover-link"> |
| 263 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 263 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 264 | ··</a> | 264 | ··</a> |
| 265 | ··<span·class="text">Comments</span> | 265 | ··<span·class="text">Comments</span> |
| 266 | </h2> | 266 | </h2> |
| 267 | <p>Comments·can·be·placed·anywhere·in·a·module·except·within·strings·and | 267 | <p>Comments·can·be·placed·anywhere·in·a·module·except·within·strings·and |
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| 347 | ······<p·class="built-using"> | 347 | ······<p·class="built-using"> |
| 348 | ········Built·using | 348 | ········Built·using |
| 349 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 349 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 350 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 350 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 351 | ······</p> | 351 | ······</p> |
| 352 | <p>Copyright·©·1996-202 | 352 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 353 | ····</footer> | 353 | ····</footer> |
| 354 | ··</div> | 354 | ··</div> |
| 355 | </main> | 355 | </main> |
| 356 | </div> | 356 | </div> |
| 357 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 357 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 358 | ··<script> | 358 | ··<script> |
| 359 | ··let·initialized·=·false; | 359 | ··let·initialized·=·false; |
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| 133 | ··<span·class="text">Erlang·Program</span> | 133 | ··<span·class="text">Erlang·Program</span> |
| 134 | </h2> | 134 | </h2> |
| 135 | <p>Even·if·all·functions·of·a·module·are·NIFs,·an·Erlang·module·is·still·needed·for | 135 | <p>Even·if·all·functions·of·a·module·are·NIFs,·an·Erlang·module·is·still·needed·for |
| 136 | two·reasons:</p><ul><li>The·NIF·library·must·be·explicitly·loaded·by·Erlang·code·in·the·same·module.</li><li>All·NIFs·of·a·module·must·have·an·Erlang·implementation·as·well.</li></ul><p>Normally·these·are·minimal·stub·implementations·that·throw·an·exception.·But | 136 | two·reasons:</p><ul><li>The·NIF·library·must·be·explicitly·loaded·by·Erlang·code·in·the·same·module.</li><li>All·NIFs·of·a·module·must·have·an·Erlang·implementation·as·well.</li></ul><p>Normally·these·are·minimal·stub·implementations·that·throw·an·exception.·But |
| 137 | they·can·also·be·used·as·fallback·implementations·for·functions·that·do·not·have | 137 | they·can·also·be·used·as·fallback·implementations·for·functions·that·do·not·have |
| 138 | native·implementations·on·some·architectures.</p><p>NIF·libraries·are·loaded·by·calling·<a·href="../../erts-16.0/doc/html/erlang.html#load_nif/2"><code·class="inline">erlang:load_nif/2</code></a>,·with·the·name·of·the | 138 | native·implementations·on·some·architectures.</p><p>NIF·libraries·are·loaded·by·calling·<a·href="../../erts-16.0/doc/html/erlang.html#load_nif/2"><code·class="inline">erlang:load_nif/2</code></a>,·with·the·name·of·the |
| 139 | shared·library·as·argument.·The·second·argument·can·be·any·term·that·will·be | 139 | shared·library·as·argument.·The·second·argument·can·be·any·term·that·will·be |
| 140 | passed·on·to·the·library·and·used·for·initialization:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 140 | passed·on·to·the·library·and·used·for·initialization:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="9414390542-1">(</span><span·class="ss">complex6</span><span·class="p"·data-group-id="9414390542-1">)</span><span·class="p">.</span><span·class="w"> |
| 141 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 141 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="9414390542-2">(</span><span·class="p"·data-group-id="9414390542-3">[</span><span·class="ss">foo</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">bar</span><span·class="p">/</span><span·[·...·truncated·by·diffoscope;·len:·112,·SHA:·26885b84284796da279410c2c067e8ae1160dfdd3c4cfc107118b9f925a6e224·...·]2-2">)</span><span·class="p">.</span><span·class="w"> |
| 142 | </span><span·class="p">-</span><span·class="na">nifs</span><span·class="p"·data-group-id=" | 142 | </span><span·class="p">-</span><span·class="na">nifs</span><span·class="p"·data-group-id="9414390542-4">(</span><span·class="p"·data-group-id="9414390542-5">[</span><span·class="ss">foo</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">bar</span><span·class="p">/</span><span·[·...·truncated·by·diffoscope;·len:·112,·SHA:·025636e21425c0922e3022b5ef4161e8952d8520054dc1c67f0106adcfb9a128·...·]2-4">)</span><span·class="p">.</span><span·class="w"> |
| 143 | </span><span·class="p">-</span><span·class="na">on_load</span><span·class="p"·data-group-id=" | 143 | </span><span·class="p">-</span><span·class="na">on_load</span><span·class="p"·data-group-id="9414390542-6">(</span><span·class="ss">init</span><span·class="p">/</span><span·class="mi">0</span><span·class="p"·data-group-id="9414390542-6">)</span><span·class="p">.</span><span·class="w"> |
| 144 | </span><span·class="nf">init</span><span·class="p"·data-group-id=" | 144 | </span><span·class="nf">init</span><span·class="p"·data-group-id="9414390542-7">(</span><span·class="p"·data-group-id="9414390542-7">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 145 | ····</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">load_nif</span><span·class="p"·data-group-id=" | 145 | ····</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">load_nif</span><span·class="p"·data-group-id="9414390542-8">(</span><span·class="s">"./complex6_nif"</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">0</span><span·class="p"·data-group-id="9414390542-8">)</span><span·class="p">.</span><span·class="w"> |
| 146 | </span><span·class="nf">foo</span><span·class="p"·data-group-id=" | 146 | </span><span·class="nf">foo</span><span·class="p"·data-group-id="9414390542-9">(</span><span·class="p">_</span><span·class="n">X</span><span·class="p"·data-group-id="9414390542-9">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 147 | ····</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">nif_error</span><span·class="p"·data-group-id=" | 147 | ····</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">nif_error</span><span·class="p"·data-group-id="9414390542-10">(</span><span·class="ss">nif_library_not_loaded</span><span·class="p"·data-group-id="9414390542-10">)</span><span·class="p">.</span><span·class="w"> |
| 148 | </span><span·class="nf">bar</span><span·class="p"·data-group-id=" | 148 | </span><span·class="nf">bar</span><span·class="p"·data-group-id="9414390542-11">(</span><span·class="p">_</span><span·class="n">Y</span><span·class="p"·data-group-id="9414390542-11">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 149 | ····</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">nif_error</span><span·class="p"·data-group-id=" | 149 | ····</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">nif_error</span><span·class="p"·data-group-id="9414390542-12">(</span><span·class="ss">nif_library_not_loaded</span><span·class="p"·data-group-id="9414390542-12">)</span><span·class="p">.</span></code></pre><p>Here,·the·directive·<code·class="inline">on_load</code>·is·used·to·get·function·<code·class="inline">init</code>·to·be·automatically |
| 150 | called·when·the·module·is·loaded.·If·<code·class="inline">init</code>·returns·anything·other·than·<code·class="inline">ok</code>, | 150 | called·when·the·module·is·loaded.·If·<code·class="inline">init</code>·returns·anything·other·than·<code·class="inline">ok</code>, |
| 151 | such·when·the·loading·of·the·NIF·library·fails·in·this·example,·the·module·is | 151 | such·when·the·loading·of·the·NIF·library·fails·in·this·example,·the·module·is |
| 152 | unloaded·and·calls·to·functions·within·it,·fail.</p><p>Loading·the·NIF·library·overrides·the·stub·implementations·and·cause·calls·to | 152 | unloaded·and·calls·to·functions·within·it,·fail.</p><p>Loading·the·NIF·library·overrides·the·stub·implementations·and·cause·calls·to |
| 153 | <code·class="inline">foo</code>·and·<code·class="inline">bar</code>·to·be·dispatched·to·the·NIF·implementations·instead.</p><h2·id="nif-library-code"·class="section-heading"> | 153 | <code·class="inline">foo</code>·and·<code·class="inline">bar</code>·to·be·dispatched·to·the·NIF·implementations·instead.</p><h2·id="nif-library-code"·class="section-heading"> |
| 154 | ··<a·href="#nif-library-code"·class="hover-link"> | 154 | ··<a·href="#nif-library-code"·class="hover-link"> |
| 155 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 155 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 156 | ··</a> | 156 | ··</a> |
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| 209 | ··<a·href="#running-the-example"·class="hover-link"> | 209 | ··<a·href="#running-the-example"·class="hover-link"> |
| 210 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 210 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 211 | ··</a> | 211 | ··</a> |
| 212 | ··<span·class="text">Running·the·Example</span> | 212 | ··<span·class="text">Running·the·Example</span> |
| 213 | </h2> | 213 | </h2> |
| 214 | <p><em>Step·1.</em>·Compile·the·C·code:</p><pre><code·class="text">unix>·gcc·-o·complex6_nif.so·-fpic·-shared·complex.c·complex6_nif.c | 214 | <p><em>Step·1.</em>·Compile·the·C·code:</p><pre><code·class="text">unix>·gcc·-o·complex6_nif.so·-fpic·-shared·complex.c·complex6_nif.c |
| 215 | windows>·cl·-LD·-MD·-Fe·complex6_nif.dll·complex.c·complex6_nif.c</code></pre><p><em>Step·2:</em>·Start·Erlang·and·compile·the·Erlang·code:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="ss">erl</span><span·class="w"> | 215 | windows>·cl·-LD·-MD·-Fe·complex6_nif.dll·complex.c·complex6_nif.c</code></pre><p><em>Step·2:</em>·Start·Erlang·and·compile·the·Erlang·code:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="ss">erl</span><span·class="w"> |
| 216 | </span><span·class="n">Erlang</span><span·class="w">·</span><span·class="n">R13B04</span><span·class="w">·</span><span·class="p"·data-group-id=" | 216 | </span><span·class="n">Erlang</span><span·class="w">·</span><span·class="n">R13B04</span><span·class="w">·</span><span·class="p"·data-group-id="5580946300-1">(</span><span·class="ss">erts</span><span·class="o">-</span><span·class="mf">5.7</span><span·class="p">.</span><span·class="mi">5</span><span·class="p"·data-group-id="5580946300-1">)</span><span·class="w">·</span><span·class="p"·data-group-id[·...·truncated·by·diffoscope;·len:·1130,·SHA:·0152091e3166b1c5411ac7c952f4f618eaff4c4c3a3498a20c0f832076c31999·...·]-6">]</span><span·class="w"> |
| 217 | </span><span·class="n">Eshell</span><span·class="w">·</span><span·class="n">V5</span><span·class="p">.</span><span·class="mf">7.5</span><span·class="w">··</span><span·class="p"·data-group-id=" | 217 | </span><span·class="n">Eshell</span><span·class="w">·</span><span·class="n">V5</span><span·class="p">.</span><span·class="mf">7.5</span><span·class="w">··</span><span·class="p"·data-group-id="5580946300-7">(</span><span·class="ss">abort</span><span·class="w">·</span><span·class="ss">with</span><span·class="w">·</span><span·class="err">^</span><span·class="n">G</span><span·class="p"·data-group-id="5580946300-7">)</span><span·class="gp·unselectable"> |
| 218 | 1>·</span><span·class="nf">c</span><span·class="p"·data-group-id=" | 218 | 1>·</span><span·class="nf">c</span><span·class="p"·data-group-id="5580946300-8">(</span><span·class="ss">complex6</span><span·class="p"·data-group-id="5580946300-8">)</span><span·class="p">.</span><span·class="w"> |
| 219 | </span><span·class="p"·data-group-id=" | 219 | </span><span·class="p"·data-group-id="5580946300-9">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="ss">complex6</span><span·class="p"·data-group-id="5580946300-9">}</span></code></pre><p><em>Step·3:</em>·Run·the·example:</p><pre><code·class="makeup·erlang"·translate="no[·...·truncated·by·diffoscope;·len:·247,·SHA:·0e35db0a3088e979179949b67d7de2fc15e3810d617f541a26668f34e0266ec1·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 220 | </span><span·class="mi">4</span><span·class="gp·unselectable"> | 220 | </span><span·class="mi">4</span><span·class="gp·unselectable"> |
| 221 | 4>·</span><span·class="nc">complex6</span><span·class="p">:</span><span·class="nf">bar</span><span·class="p"·data-group-id=" | 221 | 4>·</span><span·class="nc">complex6</span><span·class="p">:</span><span·class="nf">bar</span><span·class="p"·data-group-id="9750447207-2">(</span><span·class="mi">5</span><span·class="p"·data-group-id="9750447207-2">)</span><span·class="p">.</span><span·class="w"> |
| 222 | </span><span·class="mi">10</span><span·class="gp·unselectable"> | 222 | </span><span·class="mi">10</span><span·class="gp·unselectable"> |
| 223 | 5>·</span><span·class="nc">complex6</span><span·class="p">:</span><span·class="nf">foo</span><span·class="p"·data-group-id=" | 223 | 5>·</span><span·class="nc">complex6</span><span·class="p">:</span><span·class="nf">foo</span><span·class="p"·data-group-id="9750447207-3">(</span><span·class="s">"not·an·integer"</span><span·class="p"·data-group-id="9750447207-3">)</span><span·class="p">.</span><span·class="w"> |
| 224 | </span><span·class="gt">**·exception·error:·bad·argument | 224 | </span><span·class="gt">**·exception·error:·bad·argument |
| 225 | ·····in·function··complex6:foo/1 | 225 | ·····in·function··complex6:foo/1 |
| 226 | ········called·as·comlpex6:foo("not·an·integer")</span></code></pre> | 226 | ········called·as·comlpex6:foo("not·an·integer")</span></code></pre> |
| 227 | </div> | 227 | </div> |
| 228 | <div·class="bottom-actions"·id="bottom-actions"> | 228 | <div·class="bottom-actions"·id="bottom-actions"> |
| 229 | ··<div·class="bottom-actions-item"> | 229 | ··<div·class="bottom-actions-item"> |
| Offset 271, 15 lines modified | Offset 271, 15 lines modified | ||
| 271 | ······<p·class="built-using"> | 271 | ······<p·class="built-using"> |
| 272 | ········Built·using | 272 | ········Built·using |
| 273 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 273 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 274 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 274 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 275 | ······</p> | 275 | ······</p> |
| 276 | <p>Copyright·©·1996-202 | 276 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 277 | ····</footer> | 277 | ····</footer> |
| 278 | ··</div> | 278 | ··</div> |
| 279 | </main> | 279 | </main> |
| 280 | </div> | 280 | </div> |
| 281 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 281 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 282 | ··<script> | 282 | ··<script> |
| 283 | ··let·initialized·=·false; | 283 | ··let·initialized·=·false; |
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| 123 | </h2> | 123 | </h2> |
| 124 | <p>For·<a·href="typespec.html#type-declarations-of-user-defined-types">user-defined·types</a> | 124 | <p>For·<a·href="typespec.html#type-declarations-of-user-defined-types">user-defined·types</a> |
| 125 | defined·with·<code·class="inline">-type</code>,·the·Erlang·compiler·will·ignore·their·type·names.·This | 125 | defined·with·<code·class="inline">-type</code>,·the·Erlang·compiler·will·ignore·their·type·names.·This |
| 126 | means·the·Erlang·compiler·uses·a·structural·type·system.·Two·types·are·seen·as | 126 | means·the·Erlang·compiler·uses·a·structural·type·system.·Two·types·are·seen·as |
| 127 | equivalent·if·their·structures·are·the·same.·Type·comparison·is·based·on·the | 127 | equivalent·if·their·structures·are·the·same.·Type·comparison·is·based·on·the |
| 128 | structures·of·the·types,·not·on·how·the·user·explicitly·defines·them.·In·the | 128 | structures·of·the·types,·not·on·how·the·user·explicitly·defines·them.·In·the |
| 129 | following·example,·<code·class="inline">meter()</code>·and·<code·class="inline">foot()</code>·are·equivalent,·and·neither·differs | 129 | following·example,·<code·class="inline">meter()</code>·and·<code·class="inline">foot()</code>·are·equivalent,·and·neither·differs |
| 130 | from·the·basic·type·<code·class="inline">integer()</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">type</span><span·class="w">·</span><span·class="nf">meter</span><span·class="p"·data-group-id="8271457080-1">(</span><span·class="p"·data-group-id="8271457080-1">)</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="8271457080-2">(</span><span·class="p"·data-group-id="8271457080-2">)</span><span·class="p">.</span><span·class="w"> | ||
| 131 | 130 | from·the·basic·type·<code·class="inline">integer()</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">type</span><span·class="w">·</span><span·class="nf">meter</span><span·class="p"·data-group-id="5281098618[·...·truncated·by·diffoscope;·len:·338,·SHA:·4ed5a4f23b6d1814157707642bc8c808240b2c65c5aecc6ff08b4277416636cf·...·] | |
| 131 | </span><span·class="p">-</span><span·class="na">type</span><span·class="w">·</span><span·class="nf">foot</span><span·class="p"·data-group-id="5281098618-3">(</span><span·class="p"·data-group-id="5281098618-3">)</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="5281098618-4">(</span><span·class="p"·data-group-id="5281098618-4">)</span><span·class="p">.</span></code></pre><p>Nominal·typing·is·an·alternative·type·system.·Two·nominal·types·are·equivalent | ||
| 132 | if·and·only·if·they·are·declared·with·the·same·type·name.·The·syntax·for | 132 | if·and·only·if·they·are·declared·with·the·same·type·name.·The·syntax·for |
| 133 | declaring·nominal·types·is·<code·class="inline">-nominal</code>.</p><p>If·<code·class="inline">meter()</code>·and·<code·class="inline">foot()</code>·are·defined·as·nominal·types,·they·will·no·longer·be | 133 | declaring·nominal·types·is·<code·class="inline">-nominal</code>.</p><p>If·<code·class="inline">meter()</code>·and·<code·class="inline">foot()</code>·are·defined·as·nominal·types,·they·will·no·longer·be |
| 134 | compatible.·When·a·function·expects·type·<code·class="inline">meter()</code>,·passing·in·type·<code·class="inline">foot()</code> | 134 | compatible.·When·a·function·expects·type·<code·class="inline">meter()</code>,·passing·in·type·<code·class="inline">foot()</code> |
| 135 | will·result·in·a·warning·raised·by·the·type·checker.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">nominal</span><span·class="w">·</span><span·class="nf">meter</span><span·class="p"·data-group-id="3640291221-1">(</span><span·class="p"·data-group-id="3640291221-1">)</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="3640291221-2">(</span><span·class="p"·data-group-id="3640291221-2">)</span><span·class="p">.</span><span·class="w"> | ||
| 136 | 135 | will·result·in·a·warning·raised·by·the·type·checker.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">nominal</span><span·class="w">·</span><span·class="nf">meter</span><span·class="p"·data-group-id="8314420583-1"[·...·truncated·by·diffoscope;·len:·335,·SHA:·ede8435316d40eb6769f2f96320ef7bef51a78e7607fbc0fb34b433fe66c52f1·...·] | |
| 136 | </span><span·class="p">-</span><span·class="na">nominal</span><span·class="w">·</span><span·class="nf">foot</span><span·class="p"·data-group-id="8314420583-3">(</span><span·class="p"·data-group-id="8314420583-3">)</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="8314420583-4">(</span><span·class="p"·data-group-id="8314420583-4">)</span><span·class="p">.</span></code></pre><p>The·main·use·case·of·nominal·types·is·to·prevent·accidental·misuse·of·types·with | ||
| 137 | the·same·structure.·Within·OTP,·nominal·type-checking·is·done·in·Dialyzer.·The | 137 | the·same·structure.·Within·OTP,·nominal·type-checking·is·done·in·Dialyzer.·The |
| 138 | Erlang·compiler·does·not·perform·nominal·type-checking.</p><h2·id="nominal-type-checking-rules"·class="section-heading"> | 138 | Erlang·compiler·does·not·perform·nominal·type-checking.</p><h2·id="nominal-type-checking-rules"·class="section-heading"> |
| 139 | ··<a·href="#nominal-type-checking-rules"·class="hover-link"> | 139 | ··<a·href="#nominal-type-checking-rules"·class="hover-link"> |
| 140 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 140 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 141 | ··</a> | 141 | ··</a> |
| 142 | ··<span·class="text">Nominal·Type-Checking·Rules</span> | 142 | ··<span·class="text">Nominal·Type-Checking·Rules</span> |
| 143 | </h2> | 143 | </h2> |
| 144 | <p>In·general,·if·two·nominal·types·have·different·names,·and·one·is·not·derived | 144 | <p>In·general,·if·two·nominal·types·have·different·names,·and·one·is·not·derived |
| 145 | from·the·other,·they·are·not·compatible.·Dialyzer's·nominal·type-checking | 145 | from·the·other,·they·are·not·compatible.·Dialyzer's·nominal·type-checking |
| 146 | aligns·with·the·examples'·expected·results·in·this·section.</p><p>If·we·continue·from·the·example·above:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">spec</span><span·class="w">·</span><span·class="nf">int_to_meter</span><span·class="p"·data-group-id=" | 146 | aligns·with·the·examples'·expected·results·in·this·section.</p><p>If·we·continue·from·the·example·above:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">spec</span><span·class="w">·</span><span·class="nf">int_to_meter</span><span·class="p"·data-group-id="9776720990-1">(</span><span·class="nf">integer</span><span·class="p"·data-group-id="9776720990-2">(</span><span·class="p"·data-group-id="9776720990-2">)</span><span·class="p"·data-group-id="9776720990-1">)</span><span·class="w">·</span><span·class="p">->[·...·truncated·by·diffoscope;·len:·155,·SHA:·bb0b3ac6fecc162db640c079b2608bd747af1a21d561bd075be17c75a913a7df·...·]-3">)</span><span·class="p">.</span><span·class="w"> |
| 147 | </span><span·class="nf">int_to_meter</span><span·class="p"·data-group-id=" | 147 | </span><span·class="nf">int_to_meter</span><span·class="p"·data-group-id="9776720990-4">(</span><span·class="n">X</span><span·class="p"·data-group-id="9776720990-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">X</span><span·class="p">.</span><span·class="w"> |
| 148 | </span><span·class="w"> | 148 | </span><span·class="w"> |
| 149 | </span><span·class="p">-</span><span·class="na">spec</span><span·class="w">·</span><span·class="nf">foo</span><span·class="p"·data-group-id=" | 149 | </span><span·class="p">-</span><span·class="na">spec</span><span·class="w">·</span><span·class="nf">foo</span><span·class="p"·data-group-id="9776720990-5">(</span><span·class="p"·data-group-id="9776720990-5">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="nf">foot</span><span·class="p"·data-group-id="9776720990-6">(</span><span·class="p"·data-gro[·...·truncated·by·diffoscope;·len:·17,·SHA:·2b1bc82c8a6698bcc6a442b1315e6fd124cc92ae6d4b6170c0cfd56c6858b77a·...·]-6">)</span><span·class="p">.</span><span·class="w"> |
| 150 | </span><span·class="nf">foo</span><span·class="p"·data-group-id=" | 150 | </span><span·class="nf">foo</span><span·class="p"·data-group-id="9776720990-7">(</span><span·class="p"·data-group-id="9776720990-7">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="nf">int_to_meter</span><span·class="p"·data-group-id="9776720990-8">(</span><span·class="mi"[·...·truncated·by·diffoscope;·len:·51,·SHA:·a0cc8848798d08e5e47e703d46a65167f54aefcd3fa2ffc2ce6d5c5445fae303·...·]-8">)</span><span·class="p">.</span></code></pre><p>A·type·checker·that·performs·nominal·type-checking·should·raise·a·warning. |
| 151 | According·to·the·specification,·<code·class="inline">foo/0</code>·should·return·a·<code·class="inline">foot()</code>·type.·However, | 151 | According·to·the·specification,·<code·class="inline">foo/0</code>·should·return·a·<code·class="inline">foot()</code>·type.·However, |
| 152 | the·function·<code·class="inline">int_to_meter/1</code>·returns·a·<code·class="inline">meter()</code>·type,·so·<code·class="inline">foo/0</code>·will·also | 152 | the·function·<code·class="inline">int_to_meter/1</code>·returns·a·<code·class="inline">meter()</code>·type,·so·<code·class="inline">foo/0</code>·will·also |
| 153 | return·a·<code·class="inline">meter()</code>·type.·Because·<code·class="inline">meter()</code>·and·<code·class="inline">foot()</code>·are·incompatible | 153 | return·a·<code·class="inline">meter()</code>·type.·Because·<code·class="inline">meter()</code>·and·<code·class="inline">foot()</code>·are·incompatible |
| 154 | nominal·types,·Dialyzer·raises·the·following·warning·for·<code·class="inline">foo/0</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Invalid</span><span·class="w">·</span><span·class="ss">type</span><span·class="w">·</span><span·class="ss">specification</span><span·class="w">·</span><span·class="ss">for</span><span·class="w">·</span><span·class="ss">function</span><span·class="w">·</span><span·class="ss">foo</span><span·class="p">/</span><span·class="mi">0</span><span·class="p">.</span><span·class="w"> | 154 | nominal·types,·Dialyzer·raises·the·following·warning·for·<code·class="inline">foo/0</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Invalid</span><span·class="w">·</span><span·class="ss">type</span><span·class="w">·</span><span·class="ss">specification</span><span·class="w">·</span><span·class="ss">for</span><span·class="w">·</span><span·class="ss">function</span><span·class="w">·</span><span·class="ss">foo</span><span·class="p">/</span><span·class="mi">0</span><span·class="p">.</span><span·class="w"> |
| 155 | </span><span·class="n">The</span><span·class="w">·</span><span·class="ss">success</span><span·class="w">·</span><span·class="ss">typing</span><span·class="w">·</span><span·class="ss">is</span><span·class="w">·</span><span·class="nf">foo</span><span·class="p"·data-group-id=" | 155 | </span><span·class="n">The</span><span·class="w">·</span><span·class="ss">success</span><span·class="w">·</span><span·class="ss">typing</span><span·class="w">·</span><span·class="ss">is</span><span·class="w">·</span><span·class="nf">foo</span><span·class="p"·data-group-id="7935863425-1">(</span><span·class="p"·data-group-id="7935863425-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="p"·data-group-id="7935863425-2">(</span><span·class="nf">meter</span><span·class="p"·data-gr[·...·truncated·by·diffoscope;·len:·357,·SHA:·a845d7064b5c25972229deefb1c25b346dd60d3c7e1c8c4ecc0b8dadde1111ac·...·]-2">)</span><span·class="w"> |
| 156 | </span><span·class="n">But</span><span·class="w">·</span><span·class="ss">the</span><span·class="w">·</span><span·class="ss">spec</span><span·class="w">·</span><span·class="ss">is</span><span·class="w">·</span><span·class="nf">foo</span><span·class="p"·data-group-id=" | 156 | </span><span·class="n">But</span><span·class="w">·</span><span·class="ss">the</span><span·class="w">·</span><span·class="ss">spec</span><span·class="w">·</span><span·class="ss">is</span><span·class="w">·</span><span·class="nf">foo</span><span·class="p"·data-group-id="7935863425-5">(</span><span·class="p"·data-group-id="7935863425-5">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="nf">foot</span><span·class="p"·data-group-id="7935863425-6">(</span><span·class="p"·data-gro[·...·truncated·by·diffoscope;·len:·17,·SHA:·ae2aca1e867c28398d1a45cecce3d5e0f6d40497b8459fe8e03f8e66a797b8f2·...·]-6">)</span><span·class="w"> |
| 157 | </span><span·class="n">The</span><span·class="w">·</span><span·class="ss">return</span><span·class="w">·</span><span·class="ss">types</span><span·class="w">·</span><span·class="ss">do</span><span·class="w">·</span><span·class="ow">not</span><span·class="w">·</span><span·class="ss">overlap</span></code></pre><p>On·the·other·hand,·a·nominal·type·is·compatible·with·a·non-opaque,·non-nominal | 157 | </span><span·class="n">The</span><span·class="w">·</span><span·class="ss">return</span><span·class="w">·</span><span·class="ss">types</span><span·class="w">·</span><span·class="ss">do</span><span·class="w">·</span><span·class="ow">not</span><span·class="w">·</span><span·class="ss">overlap</span></code></pre><p>On·the·other·hand,·a·nominal·type·is·compatible·with·a·non-opaque,·non-nominal |
| 158 | type·with·the·same·structure.·This·compatibility·goes·both·ways,·meaning·that | 158 | type·with·the·same·structure.·This·compatibility·goes·both·ways,·meaning·that |
| 159 | passing·a·structural·type·when·a·nominal·type·is·expected·is·allowed,·and | 159 | passing·a·structural·type·when·a·nominal·type·is·expected·is·allowed,·and |
| 160 | vice·versa.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">spec</span><span·class="w">·</span><span·class="nf">qaz</span><span·class="p"·data-group-id=" | 160 | vice·versa.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">spec</span><span·class="w">·</span><span·class="nf">qaz</span><span·class="p"·data-group-id="8661115703-1">(</span><span·class="p"·data-group-id="8661115703-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="8661115703-2">(</span><span·class="p"·data-[·...·truncated·by·diffoscope;·len:·20,·SHA:·4d9a30928897f2abb6893b80166389fd5c9a3c2da794bfadb244a139cd421118·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 161 | </span><span·class="nf">qaz</span><span·class="p"·data-group-id=" | 161 | </span><span·class="nf">qaz</span><span·class="p"·data-group-id="8661115703-3">(</span><span·class="p"·data-group-id="8661115703-3">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="nf">int_to_meter</span><span·class="p"·data-group-id="8661115703-4">(</span><span·class="mi"[·...·truncated·by·diffoscope;·len:·51,·SHA:·472d9bc177175cf1e2df6fa656ea27bc3685866d77f0e94568a199586ebd951c·...·]-4">)</span><span·class="p">.</span></code></pre><p>A·type·checker·that·performs·nominal·type-checking·should·not·raise·a·warning |
| 162 | in·this·case.·The·specification·says·that·<code·class="inline">qaz/0</code>·should·return·an·<code·class="inline">integer()</code> | 162 | in·this·case.·The·specification·says·that·<code·class="inline">qaz/0</code>·should·return·an·<code·class="inline">integer()</code> |
| 163 | type.·However,·the·function·<code·class="inline">int_to_meter/1</code>·returns·a·<code·class="inline">meter()</code>·type,·so | 163 | type.·However,·the·function·<code·class="inline">int_to_meter/1</code>·returns·a·<code·class="inline">meter()</code>·type,·so |
| 164 | <code·class="inline">qaz/0</code>·will·also·return·a·<code·class="inline">meter()</code>·type.·<code·class="inline">integer()</code>·is·not·a·nominal·type. | 164 | <code·class="inline">qaz/0</code>·will·also·return·a·<code·class="inline">meter()</code>·type.·<code·class="inline">integer()</code>·is·not·a·nominal·type. |
| 165 | The·structure·of·<code·class="inline">meter()</code>·is·compatible·with·<code·class="inline">integer()</code>.·Dialyzer·can | 165 | The·structure·of·<code·class="inline">meter()</code>·is·compatible·with·<code·class="inline">integer()</code>.·Dialyzer·can |
| 166 | analyze·the·function·above·without·raising·a·warning.</p><p>There·is·one·exception·where·two·nominal·types·with·different·names·can·be | 166 | analyze·the·function·above·without·raising·a·warning.</p><p>There·is·one·exception·where·two·nominal·types·with·different·names·can·be |
| 167 | compatible:·when·one·is·derived·from·the·other.·For·nominal·types·<code·class="inline">s()</code>·and | 167 | compatible:·when·one·is·derived·from·the·other.·For·nominal·types·<code·class="inline">s()</code>·and |
| 168 | <code·class="inline">t()</code>,·<code·class="inline">s()</code>·can·be·derived·from·<code·class="inline">t()</code>·in·the·two·following·ways:</p><ol><li>If·<code·class="inline">s()</code>·is·directly·derived·from·<code·class="inline">t()</code>.</li></ol><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">nominal</span><span·class="w">·</span><span·class="nf">s</span><span·class="p"·data-group-id=" | 168 | <code·class="inline">t()</code>,·<code·class="inline">s()</code>·can·be·derived·from·<code·class="inline">t()</code>·in·the·two·following·ways:</p><ol><li>If·<code·class="inline">s()</code>·is·directly·derived·from·<code·class="inline">t()</code>.</li></ol><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">nominal</span><span·class="w">·</span><span·class="nf">s</span><span·class="p"·data-group-id="5505073049-1">(</span><span·class="p"·data-group-id="5505073049-1">)</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">t</span><span·class="p"·data-group-id="5505073049-2">(</span><span·c[·...·truncated·by·diffoscope;·len:·719,·SHA:·66d71d3e54f45a3c5cb4455919b3a9f47b882cb8b742e03156fe53be0a19a412·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 169 | </span><span·class="p">-</span><span·class="na">nominal</span><span·class="w">·</span><span·class="nf">nominal_1</span><span·class="p"·data-group-id=" | 169 | </span><span·class="p">-</span><span·class="na">nominal</span><span·class="w">·</span><span·class="nf">nominal_1</span><span·class="p"·data-group-id="9269119917-3">(</span><span·class="p"·data-group-id="9269119917-3">)</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">nominal_2</span><span·class="p"·data-group-id="9269119917-4">(</span[·...·truncated·by·diffoscope;·len:·42,·SHA:·9cdfea7b8f5796bbe60ade446a11bb5ee6ae83c0c89e08381fb5e3442cfcb9ca·...·]-4">)</span><span·class="p">.</span><span·class="w"> |
| 170 | </span><span·class="p">-</span><span·class="na">nominal</span><span·class="w">·</span><span·class="nf">nominal_2</span><span·class="p"·data-group-id=" | 170 | </span><span·class="p">-</span><span·class="na">nominal</span><span·class="w">·</span><span·class="nf">nominal_2</span><span·class="p"·data-group-id="9269119917-5">(</span><span·class="p"·data-group-id="9269119917-5">)</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">t</span><span·class="p"·data-group-id="9269119917-6">(</span><span·c[·...·truncated·by·diffoscope;·len:·34,·SHA:·b4b0c90eb70ae45be9f17d8b97eac976147c935b5f4a261f508dfeccb8eab307·...·]-6">)</span><span·class="p">.</span></code></pre><p>In·both·cases,·<code·class="inline">s()</code>·and·<code·class="inline">t()</code>·are·compatible·nominal·types·even·though·they |
| 171 | have·different·names.·Defining·them·in·different·modules·does·not·affect | 171 | have·different·names.·Defining·them·in·different·modules·does·not·affect |
| 172 | compatiblity.</p><p>In·summary,·nominal·type-checking·rules·are·as·follows:</p><p>A·function·that·has·a·<code·class="inline">-spec</code>·that·states·an·argument·or·a·return·type·to·be | 172 | compatiblity.</p><p>In·summary,·nominal·type-checking·rules·are·as·follows:</p><p>A·function·that·has·a·<code·class="inline">-spec</code>·that·states·an·argument·or·a·return·type·to·be |
| 173 | nominal·type·<code·class="inline">a/0</code>·(or·any·other·arity),·accepts·or·may·return:</p><ul><li>Nominal·type·<code·class="inline">a/0</code></li><li>A·compatible·nominal·type·<code·class="inline">b/0</code></li><li>A·compatible·structural·type</li></ul><p>A·function·that·has·a·<code·class="inline">-spec</code>·that·states·an·argument·or·a·return·type·to·be·a | 173 | nominal·type·<code·class="inline">a/0</code>·(or·any·other·arity),·accepts·or·may·return:</p><ul><li>Nominal·type·<code·class="inline">a/0</code></li><li>A·compatible·nominal·type·<code·class="inline">b/0</code></li><li>A·compatible·structural·type</li></ul><p>A·function·that·has·a·<code·class="inline">-spec</code>·that·states·an·argument·or·a·return·type·to·be·a |
| 174 | structural·type·<code·class="inline">b/0</code>·(or·any·other·arity),·accepts·or·may·return:</p><ul><li>A·compatible·structural·type</li><li>A·compatible·nominal·type</li></ul><p><strong>When·deciding·if·a·type·should·be·nominal,·here·are·some·suggestions:</strong></p><ul><li>If·there·are·other·types·in·the·same·module·with·the·same·structure,·and·they | 174 | structural·type·<code·class="inline">b/0</code>·(or·any·other·arity),·accepts·or·may·return:</p><ul><li>A·compatible·structural·type</li><li>A·compatible·nominal·type</li></ul><p><strong>When·deciding·if·a·type·should·be·nominal,·here·are·some·suggestions:</strong></p><ul><li>If·there·are·other·types·in·the·same·module·with·the·same·structure,·and·they |
| 175 | should·never·be·mixed,·all·of·them·can·benefit·from·being·nominal·types.</li><li>If·a·type·represents·a·unit·like·meter,·second,·byte,·and·so·on,·defining·it | 175 | should·never·be·mixed,·all·of·them·can·benefit·from·being·nominal·types.</li><li>If·a·type·represents·a·unit·like·meter,·second,·byte,·and·so·on,·defining·it |
| 176 | as·a·nominal·type·is·always·more·useful·than·<code·class="inline">-type</code>.·You·get·the·nice | 176 | as·a·nominal·type·is·always·more·useful·than·<code·class="inline">-type</code>.·You·get·the·nice |
| 177 | guarantee·that·you·cannot·mix·them·up·with·other·units·defined·as·nominal | 177 | guarantee·that·you·cannot·mix·them·up·with·other·units·defined·as·nominal |
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| 224 | ······<p·class="built-using"> | 224 | ······<p·class="built-using"> |
| 225 | ········Built·using | 225 | ········Built·using |
| 226 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 226 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 227 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 227 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 228 | ······</p> | 228 | ······</p> |
| 229 | <p>Copyright·©·1996-202 | 229 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 230 | ····</footer> | 230 | ····</footer> |
| 231 | ··</div> | 231 | ··</div> |
| 232 | </main> | 232 | </main> |
| 233 | </div> | 233 | </div> |
| 234 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 234 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 235 | ··<script> | 235 | ··<script> |
| 236 | ··let·initialized·=·false; | 236 | ··let·initialized·=·false; |
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| 124 | <p>The·main·use·case·for·opacity·in·Erlang·is·to·hide·the·implementation·of·a·data | 124 | <p>The·main·use·case·for·opacity·in·Erlang·is·to·hide·the·implementation·of·a·data |
| 125 | type,·enabling·evolving·the·API·while·minimizing·the·risk·of·breaking·consumers. | 125 | type,·enabling·evolving·the·API·while·minimizing·the·risk·of·breaking·consumers. |
| 126 | The·runtime·does·not·check·opacity.·Dialyzer·provides·some·opacity-checking,·but | 126 | The·runtime·does·not·check·opacity.·Dialyzer·provides·some·opacity-checking,·but |
| 127 | the·rest·is·up·to·convention.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Change</h4><p>Since·Erlang/OTP·28,·Dialyzer·checks·opaques·in·their·defining·module·in·the | 127 | the·rest·is·up·to·convention.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Change</h4><p>Since·Erlang/OTP·28,·Dialyzer·checks·opaques·in·their·defining·module·in·the |
| 128 | same·way·as·nominals.·Outside·of·the·defining·module,·Dialyzer·checks | 128 | same·way·as·nominals.·Outside·of·the·defining·module,·Dialyzer·checks |
| 129 | opaques·for·opacity·violations.</p></section><p>This·document·explains·what·Erlang·opacity·is·(and·the·trade-offs·involved)·via | 129 | opaques·for·opacity·violations.</p></section><p>This·document·explains·what·Erlang·opacity·is·(and·the·trade-offs·involved)·via |
| 130 | the·example·of·the·<a·href="../../lib/stdlib-7.0/doc/html/sets.html#t:set/0"><code·class="inline">sets:set()</code></a>·data·type.·This·type·<em>was</em> | 130 | the·example·of·the·<a·href="../../lib/stdlib-7.0/doc/html/sets.html#t:set/0"><code·class="inline">sets:set()</code></a>·data·type.·This·type·<em>was</em> |
| 131 | defined·in·the·<code·class="inline">sets</code>·module·like·this:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">opaque</span><span·class="w">·</span><span·class="nf">set</span><span·class="p"·data-group-id="0862278116-1">(</span><span·class="n">Element</span><span·class="p"·data-group-id="0862278116-1">)</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">set</span><span·class="p"·data-group-id="0862278116-2">{</span><span·class="ss">segs</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">segs</span><span·class="p"·data-group-id="0862278116-3">(</span><span·class="n">Element</span><span·class="p"·data-group-id="0862278116-3">)</span><span·class="p"·data-group-id="0862278116-2">}</span><span·class="p">.</span></code></pre><p>OTP·24·changed·the·definition·to·the·following·in | ||
| 132 | 131 | defined·in·the·<code·class="inline">sets</code>·module·like·this:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">opaque</span><span·class="w">·</span><span·class="nf">set</span><span·class="p"·data-group-id="942[·...·truncated·by·diffoscope;·len:·732,·SHA:·156d08286f7949d1fbb9f52f43360332f837f4f08c6a1b2950d65285bef1db55·...·] | |
| 132 | <a·href="https://github.com/erlang/otp/commit/e66941e8d7c47b973dff94c0308ea85a6be1958e">this·commit</a>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">opaque</span><span·class="w">·</span><span·class="nf">set</span><span·class="p"·data-group-id="1508259150-1">(</span><span·class="n">Element</span><span·class="p"·data-group-id="1508259150-1">)</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">set</span><span·class="p"·data-group-id="1508259150-2">{</span><span·class="ss">segs</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">segs</span><span·class="p"·data-group-id="1508259150-3">(</span><span·class="n">Element</span><span·class="p"·data-group-id="1508259150-3">)</span><span·class="p"·data-group-id="1508259150-2">}</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id="1508259150-4">#{</span><span·class="n">Element</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="o">?</span><span·class="n">VALUE</span><span·class="p"·data-group-id="1508259150-4">}</span><span·class="p">.</span></code></pre><p>And·this·change·was·safer·and·more·backwards-compatible·than·if·the·type·had | ||
| 133 | been·defined·with·<code·class="inline">-type</code>·instead·of·<code·class="inline">-opaque</code>.·Here·is·why:·when·a·module | 133 | been·defined·with·<code·class="inline">-type</code>·instead·of·<code·class="inline">-opaque</code>.·Here·is·why:·when·a·module |
| 134 | defines·an·<code·class="inline">-opaque</code>,·the·contract·is·that·only·the·defining·module·should·rely | 134 | defines·an·<code·class="inline">-opaque</code>,·the·contract·is·that·only·the·defining·module·should·rely |
| 135 | on·the·definition·of·the·type:·no·other·modules·should·rely·on·the·definition.</p><p>This·means·that·code·that·pattern-matched·on·<code·class="inline">set</code>·as·a·record/tuple·technically | 135 | on·the·definition·of·the·type:·no·other·modules·should·rely·on·the·definition.</p><p>This·means·that·code·that·pattern-matched·on·<code·class="inline">set</code>·as·a·record/tuple·technically |
| 136 | broke·the·contract,·and·opted·in·to·being·potentially·broken·when·the·definition | 136 | broke·the·contract,·and·opted·in·to·being·potentially·broken·when·the·definition |
| 137 | of·<code·class="inline">set()</code>·changed.·Before·OTP·24,·this·code·printed·<code·class="inline">ok</code>.·In·OTP·24·it·may | 137 | of·<code·class="inline">set()</code>·changed.·Before·OTP·24,·this·code·printed·<code·class="inline">ok</code>.·In·OTP·24·it·may |
| 138 | error:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="k">case</span><span·class="w">·</span><span·class="nc">sets</span><span·class="p">:</span><span·class="nf">new</span><span·class="p"·data-group-id=" | 138 | error:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="k">case</span><span·class="w">·</span><span·class="nc">sets</span><span·class="p">:</span><span·class="nf">new</span><span·class="p"·data-group-id="0204096473-1">(</span><span·class="p"·data-group-id="0204096473-1">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 139 | ····</span><span·class="n">Set</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><span·class="nf">is_tuple</span><span·class="p"·data-group-id=" | 139 | ····</span><span·class="n">Set</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><span·class="nf">is_tuple</span><span·class="p"·data-group-id="0204096473-2">(</span><span·class="n">Set</span><span·class="p"·data-group-id="0204096473-2">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 140 | ········</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 140 | ········</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="0204096473-3">(</span><span·class="s">"ok"</span><span·class="p"·data-group-id="0204096473-3">)</span><span·class="w"> |
| 141 | </span><span·class="k">end</span><span·class="p">.</span></code></pre><p><strong>When·working·with·an·opaque·defined·in·another·module,·here·are·some | 141 | </span><span·class="k">end</span><span·class="p">.</span></code></pre><p><strong>When·working·with·an·opaque·defined·in·another·module,·here·are·some |
| 142 | recommendations:</strong></p><ul><li>Don't·examine·the·underlying·type·using·pattern-matching,·guards,·or·functions | 142 | recommendations:</strong></p><ul><li>Don't·examine·the·underlying·type·using·pattern-matching,·guards,·or·functions |
| 143 | that·reveal·the·type,·such·as·<a·href="../../erts-16.0/doc/html/erlang.html#tuple_size/1"><code·class="inline">tuple_size/1</code></a>·.·One·exception | 143 | that·reveal·the·type,·such·as·<a·href="../../erts-16.0/doc/html/erlang.html#tuple_size/1"><code·class="inline">tuple_size/1</code></a>·.·One·exception |
| 144 | is·that·<code·class="inline">=:=</code>·and·<code·class="inline">=/=</code>·can·be·used·between·two·opaques·with·the·same·name,·or | 144 | is·that·<code·class="inline">=:=</code>·and·<code·class="inline">=/=</code>·can·be·used·between·two·opaques·with·the·same·name,·or |
| 145 | between·an·opaque·and·<code·class="inline">any()</code>,·as·those·comparisons·do·not·reveal·underlying | 145 | between·an·opaque·and·<code·class="inline">any()</code>,·as·those·comparisons·do·not·reveal·underlying |
| 146 | types.</li><li>Use·functions·provided·by·the·module·for·working·with·the·type.·For | 146 | types.</li><li>Use·functions·provided·by·the·module·for·working·with·the·type.·For |
| 147 | example,·<code·class="inline">sets</code>·module·provides·<a·href="../../lib/stdlib-7.0/doc/html/sets.html#new/0"><code·class="inline">sets:new/0</code></a>,·<a·href="../../lib/stdlib-7.0/doc/html/sets.html#add_element/2"><code·class="inline">sets:add_element/2</code></a>, | 147 | example,·<code·class="inline">sets</code>·module·provides·<a·href="../../lib/stdlib-7.0/doc/html/sets.html#new/0"><code·class="inline">sets:new/0</code></a>,·<a·href="../../lib/stdlib-7.0/doc/html/sets.html#add_element/2"><code·class="inline">sets:add_element/2</code></a>, |
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| 213 | ······<p·class="built-using"> | 213 | ······<p·class="built-using"> |
| 214 | ········Built·using | 214 | ········Built·using |
| 215 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 215 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 216 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 216 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 217 | ······</p> | 217 | ······</p> |
| 218 | <p>Copyright·©·1996-202 | 218 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 219 | ····</footer> | 219 | ····</footer> |
| 220 | ··</div> | 220 | ··</div> |
| 221 | </main> | 221 | </main> |
| 222 | </div> | 222 | </div> |
| 223 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 223 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 224 | ··<script> | 224 | ··<script> |
| 225 | ··let·initialized·=·false; | 225 | ··let·initialized·=·false; |
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| 201 | ··</a> | 201 | ··</a> |
| 202 | ··<span·class="text">Sanity·check</span> | 202 | ··<span·class="text">Sanity·check</span> |
| 203 | </h2> | 203 | </h2> |
| 204 | <p>The·application·dependencies·can·be·checked·using·the·Erlang·shell. | 204 | <p>The·application·dependencies·can·be·checked·using·the·Erlang·shell. |
| 205 | Application·dependencies·are·verified·among·installed·applications·by | 205 | Application·dependencies·are·verified·among·installed·applications·by |
| 206 | <code·class="inline">otp_patch_apply</code>,·but·these·are·not·necessarily·those·actually·loaded. | 206 | <code·class="inline">otp_patch_apply</code>,·but·these·are·not·necessarily·those·actually·loaded. |
| 207 | By·calling·<code·class="inline">system_information:sanity_check()</code>·one·can·validate | 207 | By·calling·<code·class="inline">system_information:sanity_check()</code>·one·can·validate |
| 208 | dependencies·among·applications·actually·loaded.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">system_information</span><span·class="p">:</span><span·class="nf">sanity_check</span><span·class="p"·data-group-id=" | 208 | dependencies·among·applications·actually·loaded.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">system_information</span><span·class="p">:</span><span·class="nf">sanity_check</span><span·class="p"·data-group-id="3505057853-1">(</span><span·class="p"·data-group-id="3505057853-1">)</span><span·class="p">.</span><span·class="w"> |
| 209 | </span><span·class="ss">ok</span></code></pre><p>Please·take·a·look·at·the·reference·of·<a·href="../../lib/runtime_tools-2.2/doc/html/system_information.html#sanity_check/0"·title="">sanity_check()</a>·for·more | 209 | </span><span·class="ss">ok</span></code></pre><p>Please·take·a·look·at·the·reference·of·<a·href="../../lib/runtime_tools-2.2/doc/html/system_information.html#sanity_check/0"·title="">sanity_check()</a>·for·more |
| 210 | information.</p> | 210 | information.</p> |
| 211 | </div> | 211 | </div> |
| 212 | <div·class="bottom-actions"·id="bottom-actions"> | 212 | <div·class="bottom-actions"·id="bottom-actions"> |
| 213 | ··<div·class="bottom-actions-item"> | 213 | ··<div·class="bottom-actions-item"> |
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| 254 | ······<p·class="built-using"> | 254 | ······<p·class="built-using"> |
| 255 | ········Built·using | 255 | ········Built·using |
| 256 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 256 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 257 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 257 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 258 | ······</p> | 258 | ······</p> |
| 259 | <p>Copyright·©·1996-202 | 259 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 260 | ····</footer> | 260 | ····</footer> |
| 261 | ··</div> | 261 | ··</div> |
| 262 | </main> | 262 | </main> |
| 263 | </div> | 263 | </div> |
| 264 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 264 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 265 | ··<script> | 265 | ··<script> |
| 266 | ··let·initialized·=·false; | 266 | ··let·initialized·=·false; |
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| 307 | ······<p·class="built-using"> | 307 | ······<p·class="built-using"> |
| 308 | ········Built·using | 308 | ········Built·using |
| 309 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 309 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 310 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 310 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 311 | ······</p> | 311 | ······</p> |
| 312 | <p>Copyright·©·1996-202 | 312 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 313 | ····</footer> | 313 | ····</footer> |
| 314 | ··</div> | 314 | ··</div> |
| 315 | </main> | 315 | </main> |
| 316 | </div> | 316 | </div> |
| 317 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 317 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 318 | ··<script> | 318 | ··<script> |
| 319 | ··let·initialized·=·false; | 319 | ··let·initialized·=·false; |
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| 128 | succeeds,·any·unbound·variables·in·the·pattern·become·bound.·If·the·matching | 128 | succeeds,·any·unbound·variables·in·the·pattern·become·bound.·If·the·matching |
| 129 | fails,·an·exception·is·raised.</p><p><em>Examples:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">X</span><span·class="p">.</span><span·class="w"> | 129 | fails,·an·exception·is·raised.</p><p><em>Examples:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">X</span><span·class="p">.</span><span·class="w"> |
| 130 | </span><span·class="gt">**·1:1:·variable·'X'·is·unbound·**</span><span·class="gp·unselectable"> | 130 | </span><span·class="gt">**·1:1:·variable·'X'·is·unbound·**</span><span·class="gp·unselectable"> |
| 131 | 2>·</span><span·class="n">X</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">2</span><span·class="p">.</span><span·class="w"> | 131 | 2>·</span><span·class="n">X</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">2</span><span·class="p">.</span><span·class="w"> |
| 132 | </span><span·class="mi">2</span><span·class="gp·unselectable"> | 132 | </span><span·class="mi">2</span><span·class="gp·unselectable"> |
| 133 | 3>·</span><span·class="n">X</span><span·class="w">·</span><span·class="o">+</span><span·class="w">·</span><span·class="mi">1</span><span·class="p">.</span><span·class="w"> | 133 | 3>·</span><span·class="n">X</span><span·class="w">·</span><span·class="o">+</span><span·class="w">·</span><span·class="mi">1</span><span·class="p">.</span><span·class="w"> |
| 134 | </span><span·class="mi">3</span><span·class="gp·unselectable"> | 134 | </span><span·class="mi">3</span><span·class="gp·unselectable"> |
| 135 | 4>·</span><span·class="p"·data-group-id=" | 135 | 4>·</span><span·class="p"·data-group-id="6700732546-1">{</span><span·class="n">X</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Y</span><span·class="p"·data-group-id="6700732546-1">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="[·...·truncated·by·diffoscope;·len:·179,·SHA:·c8df67f287ef5a77d877e94c04ea8c01e29039ef75ab688543beaf5f4e5ace60·...·]-2">}</span><span·class="p">.</span><span·class="w"> |
| 136 | </span><span·class="gt">**·exception·error:·no·match·of·right·hand·side·value·{1,2}</span><span·class="gp·unselectable"> | 136 | </span><span·class="gt">**·exception·error:·no·match·of·right·hand·side·value·{1,2}</span><span·class="gp·unselectable"> |
| 137 | 5>·</span><span·class="p"·data-group-id=" | 137 | 5>·</span><span·class="p"·data-group-id="6700732546-3">{</span><span·class="n">X</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Y</span><span·class="p"·data-group-id="6700732546-3">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="[·...·truncated·by·diffoscope;·len:·179,·SHA:·19a44340019505c2338fe5c9116c409c32ce8ec207805727c004cb6ad7b394fe·...·]-4">}</span><span·class="p">.</span><span·class="w"> |
| 138 | </span><span·class="p"·data-group-id=" | 138 | </span><span·class="p"·data-group-id="6700732546-5">{</span><span·class="mi">2</span><span·class="p">,</span><span·class="mi">3</span><span·class="p"·data-group-id="6700732546-5">}</span><span·class="gp·unselectable"> |
| 139 | 6>·</span><span·class="n">Y</span><span·class="p">.</span><span·class="w"> | 139 | 6>·</span><span·class="n">Y</span><span·class="p">.</span><span·class="w"> |
| 140 | </span><span·class="mi">3</span></code></pre> | 140 | </span><span·class="mi">3</span></code></pre> |
| 141 | </div> | 141 | </div> |
| 142 | <div·class="bottom-actions"·id="bottom-actions"> | 142 | <div·class="bottom-actions"·id="bottom-actions"> |
| 143 | ··<div·class="bottom-actions-item"> | 143 | ··<div·class="bottom-actions-item"> |
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| 184 | ······<p·class="built-using"> | 184 | ······<p·class="built-using"> |
| 185 | ········Built·using | 185 | ········Built·using |
| 186 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 186 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 187 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 187 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 188 | ······</p> | 188 | ······</p> |
| 189 | <p>Copyright·©·1996-202 | 189 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 190 | ····</footer> | 190 | ····</footer> |
| 191 | ··</div> | 191 | ··</div> |
| 192 | </main> | 192 | </main> |
| 193 | </div> | 193 | </div> |
| 194 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 194 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 195 | ··<script> | 195 | ··<script> |
| 196 | ··let·initialized·=·false; | 196 | ··let·initialized·=·false; |
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| 225 | ······<p·class="built-using"> | 225 | ······<p·class="built-using"> |
| 226 | ········Built·using | 226 | ········Built·using |
| 227 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 227 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 228 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 228 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 229 | ······</p> | 229 | ······</p> |
| 230 | <p>Copyright·©·1996-202 | 230 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 231 | ····</footer> | 231 | ····</footer> |
| 232 | ··</div> | 232 | ··</div> |
| 233 | </main> | 233 | </main> |
| 234 | </div> | 234 | </div> |
| 235 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 235 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 236 | ··<script> | 236 | ··<script> |
| 237 | ··let·initialized·=·false; | 237 | ··let·initialized·=·false; |
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| 311 | ······<p·class="built-using"> | 311 | ······<p·class="built-using"> |
| 312 | ········Built·using | 312 | ········Built·using |
| 313 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 313 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 314 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 314 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 315 | ······</p> | 315 | ······</p> |
| 316 | <p>Copyright·©·1996-202 | 316 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 317 | ····</footer> | 317 | ····</footer> |
| 318 | ··</div> | 318 | ··</div> |
| 319 | </main> | 319 | </main> |
| 320 | </div> | 320 | </div> |
| 321 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 321 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 322 | ··<script> | 322 | ··<script> |
| 323 | ··let·initialized·=·false; | 323 | ··let·initialized·=·false; |
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| 122 | ··<span·class="text">Records·and·Tuples</span> | 122 | ··<span·class="text">Records·and·Tuples</span> |
| 123 | </h2> | 123 | </h2> |
| 124 | <p>The·main·advantage·of·using·records·rather·than·tuples·is·that·fields·in·a | 124 | <p>The·main·advantage·of·using·records·rather·than·tuples·is·that·fields·in·a |
| 125 | record·are·accessed·by·name,·whereas·fields·in·a·tuple·are·accessed·by·position. | 125 | record·are·accessed·by·name,·whereas·fields·in·a·tuple·are·accessed·by·position. |
| 126 | To·illustrate·these·differences,·suppose·that·you·want·to·represent·a·person | 126 | To·illustrate·these·differences,·suppose·that·you·want·to·represent·a·person |
| 127 | with·the·tuple·<code·class="inline">{Name,·Address,·Phone}</code>.</p><p>To·write·functions·that·manipulate·this·data,·remember·the·following:</p><ul><li>The·<code·class="inline">Name</code>·field·is·the·first·element·of·the·tuple.</li><li>The·<code·class="inline">Address</code>·field·is·the·second·element.</li><li>The·<code·class="inline">Phone</code>·field·is·the·third·element.</li></ul><p>For·example,·to·extract·data·from·a·variable·<code·class="inline">P</code>·that·contains·such·a·tuple,·you | 127 | with·the·tuple·<code·class="inline">{Name,·Address,·Phone}</code>.</p><p>To·write·functions·that·manipulate·this·data,·remember·the·following:</p><ul><li>The·<code·class="inline">Name</code>·field·is·the·first·element·of·the·tuple.</li><li>The·<code·class="inline">Address</code>·field·is·the·second·element.</li><li>The·<code·class="inline">Phone</code>·field·is·the·third·element.</li></ul><p>For·example,·to·extract·data·from·a·variable·<code·class="inline">P</code>·that·contains·such·a·tuple,·you |
| 128 | can·write·the·following·code·and·then·use·pattern·matching·to·extract·the | 128 | can·write·the·following·code·and·then·use·pattern·matching·to·extract·the |
| 129 | relevant·fields:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Name</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">element</span><span·class="p"·data-group-id=" | 129 | relevant·fields:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Name</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">element</span><span·class="p"·data-group-id="4992246016-1">(</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="n">P</span><span·class="p"·data-group-id="4992246016-1">)</span><span·class="p">,</span><span·class="w"> |
| 130 | </span><span·class="n">Address</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">element</span><span·class="p"·data-group-id=" | 130 | </span><span·class="n">Address</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">element</span><span·class="p"·data-group-id="4992246016-2">(</span><span·class="mi">2</span><span·class="p">,</span><span·class="w">·</span><span·class="n">P</span><span·class="p"·data-group-id="4992246016-2">)</span><span·class="p">,</span><span·class="w"> |
| 131 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span></code></pre><p>Such·code·is·difficult·to·read·and·understand,·and·errors·occur·if·the·numbering | 131 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span></code></pre><p>Such·code·is·difficult·to·read·and·understand,·and·errors·occur·if·the·numbering |
| 132 | of·the·elements·in·the·tuple·is·wrong.·If·the·data·representation·of·the·fields | 132 | of·the·elements·in·the·tuple·is·wrong.·If·the·data·representation·of·the·fields |
| 133 | is·changed,·by·re-ordering,·adding,·or·removing·fields,·all·references·to·the | 133 | is·changed,·by·re-ordering,·adding,·or·removing·fields,·all·references·to·the |
| 134 | person·tuple·must·be·checked·and·possibly·modified.</p><p>Records·allow·references·to·the·fields·by·name,·instead·of·by·position.·In·the | 134 | person·tuple·must·be·checked·and·possibly·modified.</p><p>Records·allow·references·to·the·fields·by·name,·instead·of·by·position.·In·the |
| 135 | following·example,·a·record·instead·of·a·tuple·is·used·to·store·the·data:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id=" | 135 | following·example,·a·record·instead·of·a·tuple·is·used·to·store·the·data:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id="5608203740-1">(</span><span·class="ss">person</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="5608203740-2">{</span><span·class="ss">name</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">phone</spa[·...·truncated·by·diffoscope;·len:·175,·SHA:·664b7af6ee1c49891b82c678b64d47b5efccd9f57e4d6c233849ece88b3a049e·...·]-1">)</span><span·class="p">.</span></code></pre><p>This·enables·references·to·the·fields·of·the·record·by·name.·For·example,·if·<code·class="inline">P</code> |
| 136 | is·a·variable·whose·value·is·a·<code·class="inline">person</code>·record,·the·following·code·access·the | 136 | is·a·variable·whose·value·is·a·<code·class="inline">person</code>·record,·the·following·code·access·the |
| 137 | name·and·address·fields·of·the·records:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Name</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">P</span><span·class="o">#</span><span·class="ss">person</span><span·class="p">.</span><span·class="ss">name</span><span·class="p">,</span><span·class="w"> | 137 | name·and·address·fields·of·the·records:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Name</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">P</span><span·class="o">#</span><span·class="ss">person</span><span·class="p">.</span><span·class="ss">name</span><span·class="p">,</span><span·class="w"> |
| 138 | </span><span·class="n">Address</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">P</span><span·class="o">#</span><span·class="ss">person</span><span·class="p">.</span><span·class="ss">address</span><span·class="p">,</span><span·class="w"> | 138 | </span><span·class="n">Address</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">P</span><span·class="o">#</span><span·class="ss">person</span><span·class="p">.</span><span·class="ss">address</span><span·class="p">,</span><span·class="w"> |
| 139 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span></code></pre><p>Internally,·records·are·represented·using·tagged·tuples:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 139 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span></code></pre><p>Internally,·records·are·represented·using·tagged·tuples:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="2742111478-1">{</span><span·class="ss">person</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Name</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Phone</span><span·class="p">,</span><span·class="w">·</span><span[·...·truncated·by·diffoscope;·len:·66,·SHA:·3b1e9354f6e59dabd71664e24e98fa9fd255eda4358db157520331a82282d155·...·]-1">}</span></code></pre><h2·id="defining-a-record"·class="section-heading"> |
| 140 | ··<a·href="#defining-a-record"·class="hover-link"> | 140 | ··<a·href="#defining-a-record"·class="hover-link"> |
| 141 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 141 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 142 | ··</a> | 142 | ··</a> |
| 143 | ··<span·class="text">Defining·a·Record</span> | 143 | ··<span·class="text">Defining·a·Record</span> |
| 144 | </h2> | 144 | </h2> |
| 145 | <p>This·following·definition·of·a·<code·class="inline">person</code>·is·used·in·several·examples·in·this | 145 | <p>This·following·definition·of·a·<code·class="inline">person</code>·is·used·in·several·examples·in·this |
| 146 | section.·Three·fields·are·included,·<code·class="inline">name</code>,·<code·class="inline">phone</code>,·and·<code·class="inline">address</code>.·The·default | 146 | section.·Three·fields·are·included,·<code·class="inline">name</code>,·<code·class="inline">phone</code>,·and·<code·class="inline">address</code>.·The·default |
| 147 | values·for·<code·class="inline">name</code>·and·<code·class="inline">phone</code>·is·""·and·[],·respectively.·The·default·value·for | 147 | values·for·<code·class="inline">name</code>·and·<code·class="inline">phone</code>·is·""·and·[],·respectively.·The·default·value·for |
| 148 | <code·class="inline">address</code>·is·the·atom·<code·class="inline">undefined</code>,·since·no·default·value·is·supplied·for·this | 148 | <code·class="inline">address</code>·is·the·atom·<code·class="inline">undefined</code>,·since·no·default·value·is·supplied·for·this |
| 149 | field:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id="3988315487-1">(</span><span·class="ss">person</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3988315487-2">{</span><span·class="ss">name</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="s">""</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">phone</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="3988315487-3">[</span><span·class="p"·data-group-id="3988315487-3">]</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">address</span><span·class="p"·data-group-id="3988315487-2">}</span><span·class="p"·data-group-id="3988315487-1">)</span><span·class="p">.</span></code></pre><p>The·record·must·be·defined·in·the·shell·to·enable·use·of·the·record·syntax·in | ||
| 150 | 149 | field:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id="3491535956-1">(</span><span·class="ss">person</span><span·class="p">,</span><span·class="w">·</span><span·class="[·...·truncated·by·diffoscope;·len:·732,·SHA:·6695cdd77f8e3b2aeb05ac67ba8697c03ab5336f8037600885c4d9c23a5f58e7·...·] | |
| 150 | the·examples:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="nf">rd</span><span·class="p"·data-group-id="1321092641-1">(</span><span·class="ss">person</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1321092641-2">{</span><span·class="ss">name</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="s">""</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">phone</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="1321092641-3">[</span><span·class="p"·data-group-id="1321092641-3">]</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">address</span><span·class="p"·data-group-id="1321092641-2">}</span><span·class="p"·data-group-id="1321092641-1">)</span><span·class="p">.</span><span·class="w"> | ||
| 151 | </span><span·class="ss">person</span></code></pre><p>This·is·because·record·definitions·are·only·available·at·compile·time,·not·at | 151 | </span><span·class="ss">person</span></code></pre><p>This·is·because·record·definitions·are·only·available·at·compile·time,·not·at |
| 152 | runtime.·For·details·on·records·in·the·shell,·see·the·<a·href="../../lib/stdlib-7.0/doc/html/shell.html"><code·class="inline">shell</code></a>·manual·page·in | 152 | runtime.·For·details·on·records·in·the·shell,·see·the·<a·href="../../lib/stdlib-7.0/doc/html/shell.html"><code·class="inline">shell</code></a>·manual·page·in |
| 153 | STDLIB.</p><h2·id="creating-a-record"·class="section-heading"> | 153 | STDLIB.</p><h2·id="creating-a-record"·class="section-heading"> |
| 154 | ··<a·href="#creating-a-record"·class="hover-link"> | 154 | ··<a·href="#creating-a-record"·class="hover-link"> |
| 155 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 155 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 156 | ··</a> | 156 | ··</a> |
| 157 | ··<span·class="text">Creating·a·Record</span> | 157 | ··<span·class="text">Creating·a·Record</span> |
| 158 | </h2> | 158 | </h2> |
| 159 | <p>A·new·<code·class="inline">person</code>·record·is·created·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="o">#</span><span·class="ss">person</span><span·class="p"·data-group-id=" | 159 | <p>A·new·<code·class="inline">person</code>·record·is·created·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="o">#</span><span·class="ss">person</span><span·class="p"·data-group-id="7032956786-1">{</span><span·class="ss">phone</span><span·class="o">=</span><span·class="p"·data-group-id="7032956786-2">[</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">8</span><span·class="p">,</span><span·class="mi">2</span><span[·...·truncated·by·diffoscope;·len:·475,·SHA:·89e81af1520b9093205f844b09056b84b92075dfda514257b48b202edf9de72c·...·]-1">}</span><span·class="p">.</span><span·class="w"> |
| 160 | </span><span·class="o">#</span><span·class="ss">person</span><span·class="p"·data-group-id=" | 160 | </span><span·class="o">#</span><span·class="ss">person</span><span·class="p"·data-group-id="7032956786-3">{</span><span·class="ss">name</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"Robert"</span><span·class="p">,</span><span·class="ss">phone</span><span·class="w">·</span><span·class="o">[·...·truncated·by·diffoscope;·len:·707,·SHA:·d7976565e9a4e1e794857a79d29613005512253367376ff73ae2719cba0ef48a·...·]-3">}</span></code></pre><p>As·the·<code·class="inline">address</code>·field·was·omitted,·its·default·value·is·used.</p><p>From·Erlang·5.1/OTP·R8B,·a·value·to·all·fields·in·a·record·can·be·set·with·the |
| 161 | special·field·<code·class="inline">_</code>.·<code·class="inline">_</code>·means·"all·fields·not·explicitly·specified".</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="o">#</span><span·class="ss">person</span><span·class="p"·data-group-id=" | 161 | special·field·<code·class="inline">_</code>.·<code·class="inline">_</code>·means·"all·fields·not·explicitly·specified".</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="o">#</span><span·class="ss">person</span><span·class="p"·data-group-id="9322820199-1">{</span><span·class="ss">name</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"Jakob"</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="w">·</spa[·...·truncated·by·diffoscope;·len:·126,·SHA:·55c06456da0e8374656da8eae1b04535d7a646883ccaa01d79ce77966007aaa2·...·]-1">}</span><span·class="p">.</span><span·class="w"> |
| 162 | </span><span·class="o">#</span><span·class="ss">person</span><span·class="p"·data-group-id=" | 162 | </span><span·class="o">#</span><span·class="ss">person</span><span·class="p"·data-group-id="9322820199-2">{</span><span·class="ss">name</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"Jakob"</span><span·class="p">,</span><span·class="ss">phone</span><span·class="w">·</span><span·class="o">=[·...·truncated·by·diffoscope;·len:·269,·SHA:·e9707fd137aedb70385b4f155292ec971a4a5aab62e34b341d5aba1938734c3a·...·]-2">}</span></code></pre><p>It·is·primarily·intended·to·be·used·in·<a·href="../../lib/stdlib-7.0/doc/html/ets.html#match/2"><code·class="inline">ets:match/2</code></a>·and |
| 163 | <a·href="../../lib/mnesia-4.24/doc/html/mnesia.html#match_object/3"><code·class="inline">mnesia:match_object/3</code></a>,·to·set·record·fields·to·the·atom·<code·class="inline">'_'</code>.·(This·is·a | 163 | <a·href="../../lib/mnesia-4.24/doc/html/mnesia.html#match_object/3"><code·class="inline">mnesia:match_object/3</code></a>,·to·set·record·fields·to·the·atom·<code·class="inline">'_'</code>.·(This·is·a |
| 164 | wildcard·in·<a·href="../../lib/stdlib-7.0/doc/html/ets.html#match/2"><code·class="inline">ets:match/2</code></a>.)</p><h2·id="accessing-a-record-field"·class="section-heading"> | 164 | wildcard·in·<a·href="../../lib/stdlib-7.0/doc/html/ets.html#match/2"><code·class="inline">ets:match/2</code></a>.)</p><h2·id="accessing-a-record-field"·class="section-heading"> |
| 165 | ··<a·href="#accessing-a-record-field"·class="hover-link"> | 165 | ··<a·href="#accessing-a-record-field"·class="hover-link"> |
| 166 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 166 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 167 | ··</a> | 167 | ··</a> |
| 168 | ··<span·class="text">Accessing·a·Record·Field</span> | 168 | ··<span·class="text">Accessing·a·Record·Field</span> |
| 169 | </h2> | 169 | </h2> |
| 170 | <p>The·following·example·shows·how·to·access·a·record·field:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="n">P</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">person</span><span·class="p"·data-group-id=" | 170 | <p>The·following·example·shows·how·to·access·a·record·field:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="n">P</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">person</span><span·class="p"·data-group-id="3602037431-1">{</span><span·class="ss">name</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"Joe"</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">phone</span><span·class="w">·</[·...·truncated·by·diffoscope;·len:·568,·SHA:·ddff0179b212690f850ff00c3a40ccca99591f76fb0e47e8f131a9c770f3f63b·...·]-1">}</span><span·class="p">.</span><span·class="w"> |
| 171 | </span><span·class="o">#</span><span·class="ss">person</span><span·class="p"·data-group-id=" | 171 | </span><span·class="o">#</span><span·class="ss">person</span><span·class="p"·data-group-id="3602037431-3">{</span><span·class="ss">name</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"Joe"</span><span·class="p">,</span><span·class="ss">phone</span><span·class="w">·</span><span·class="o">=</[·...·truncated·by·diffoscope;·len:·704,·SHA:·fa005b6a1c5f69ba3086b8928c6a3c65ec86133e512ba2b886d1cebe7b81f74f·...·]-3">}</span><span·class="gp·unselectable"> |
| 172 | >·</span><span·class="n">P</span><span·class="o">#</span><span·class="ss">person</span><span·class="p">.</span><span·class="ss">name</span><span·class="p">.</span><span·class="w"> | 172 | >·</span><span·class="n">P</span><span·class="o">#</span><span·class="ss">person</span><span·class="p">.</span><span·class="ss">name</span><span·class="p">.</span><span·class="w"> |
| 173 | </span><span·class="s">"Joe"</span></code></pre><h2·id="updating-a-record"·class="section-heading"> | 173 | </span><span·class="s">"Joe"</span></code></pre><h2·id="updating-a-record"·class="section-heading"> |
| 174 | ··<a·href="#updating-a-record"·class="hover-link"> | 174 | ··<a·href="#updating-a-record"·class="hover-link"> |
| 175 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 175 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 176 | ··</a> | 176 | ··</a> |
| 177 | ··<span·class="text">Updating·a·Record</span> | 177 | ··<span·class="text">Updating·a·Record</span> |
| 178 | </h2> | 178 | </h2> |
| 179 | <p>The·following·example·shows·how·to·update·a·record:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="n">P1</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">person</span><span·class="p"·data-group-id=" | 179 | <p>The·following·example·shows·how·to·update·a·record:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="n">P1</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">person</span><span·class="p"·data-group-id="6155581316-1">{</span><span·class="ss">name</span><span·class="o">=</span><span·class="s">"Joe"</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">phone</span><span·class="o">=</span><span·class="p"·data-group-id="6155581316-2[·...·truncated·by·diffoscope;·len:·373,·SHA:·7bd6efda4b1803e918af9dc091a0bdece9d91290dd6f900f20d1ed72c355a9b5·...·]-1">}</span><span·class="p">.</span><span·class="w"> |
| 180 | </span><span·class="o">#</span><span·class="ss">person</span><span·class="p"·data-group-id=" | 180 | </span><span·class="o">#</span><span·class="ss">person</span><span·class="p"·data-group-id="6155581316-3">{</span><span·class="ss">name</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"Joe"</span><span·class="p">,</span><span·class="ss">phone</span><span·class="w">·</span><span·class="o">=</[·...·truncated·by·diffoscope;·len:·469,·SHA:·85bea1e4609239ac995a6a2f6fc025cd31e4b234ed6b97113e9766a486fcb4ea·...·]-3">}</span><span·class="gp·unselectable"> |
| 181 | >·</span><span·class="n">P2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">P1</span><span·class="o">#</span><span·class="ss">person</span><span·class="p"·data-group-id=" | 181 | >·</span><span·class="n">P2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">P1</span><span·class="o">#</span><span·class="ss">person</span><span·class="p"·data-group-id="6155581316-5">{</span><span·class="ss">name</span><span·class="o">=</span><span·class="s">"Robert"</span><span·class="p"·data-group-id="6155581316-5">}</span><span·class="p">.</span><span·class="w"> |
| 182 | </span><span·class="o">#</span><span·class="ss">person</span><span·class="p"·data-group-id=" | 182 | </span><span·class="o">#</span><span·class="ss">person</span><span·class="p"·data-group-id="6155581316-6">{</span><span·class="ss">name</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"Robert"</span><span·class="p">,</span><span·class="ss">phone</span><span·class="w">·</span><span·class="o">[·...·truncated·by·diffoscope;·len:·472,·SHA:·60e64af2caf40fcb643636178156ed162d4aab5f62bd17dc753be11ec33016bd·...·]-6">}</span></code></pre><h2·id="type-testing"·class="section-heading"> |
| 183 | ··<a·href="#type-testing"·class="hover-link"> | 183 | ··<a·href="#type-testing"·class="hover-link"> |
| 184 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 184 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 185 | ··</a> | 185 | ··</a> |
| 186 | ··<span·class="text">Type·Testing</span> | 186 | ··<span·class="text">Type·Testing</span> |
| 187 | </h2> | 187 | </h2> |
| 188 | <p>The·following·example·shows·that·the·guard·succeeds·if·<code·class="inline">P</code>·is·record·of·type | 188 | <p>The·following·example·shows·that·the·guard·succeeds·if·<code·class="inline">P</code>·is·record·of·type |
| 189 | <code·class="inline">person</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">foo</span><span·class="p"·data-group-id=" | 189 | <code·class="inline">person</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">foo</span><span·class="p"·data-group-id="4948909651-1">(</span><span·class="n">P</span><span·class="p"·data-group-id="4948909651-1">)</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><span·class="nf">is_record</span><span·class="p"·data-group-id="4948909651-2">(</s[·...·truncated·by·diffoscope;·len:·147,·SHA:·8748355f4f4a63b71e8765d4d414c28f6ca11784635f72aba898a65047c21da1·...·]-2">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">a_person</span><span·class="p">;</span><span·class="w"> |
| 190 | </span><span·class="nf">foo</span><span·class="p"·data-group-id=" | 190 | </span><span·class="nf">foo</span><span·class="p"·data-group-id="4948909651-3">(</span><span·class="p">_</span><span·class="p"·data-group-id="4948909651-3">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">not_a_person</span><span·class="p">.</span></code></pre><h2·id="pattern-matching"·class="section-heading"> |
| 191 | ··<a·href="#pattern-matching"·class="hover-link"> | 191 | ··<a·href="#pattern-matching"·class="hover-link"> |
| 192 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 192 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 193 | ··</a> | 193 | ··</a> |
| 194 | ··<span·class="text">Pattern·Matching</span> | 194 | ··<span·class="text">Pattern·Matching</span> |
| 195 | </h2> | 195 | </h2> |
| 196 | <p>Matching·can·be·used·in·combination·with·records,·as·shown·in·the·following | 196 | <p>Matching·can·be·used·in·combination·with·records,·as·shown·in·the·following |
| 197 | example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="n">P3</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">person</span><span·class="p"·data-group-id=" | 197 | example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="n">P3</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">person</span><span·class="p"·data-group-id="8420268043-1">{</span><span·class="ss">name</span><span·class="o">=</span><span·class="s">"Joe"</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">phone</span><span·class="o">=</span><span·class="p"·data-group-id="8420268043-2[·...·truncated·by·diffoscope;·len:·373,·SHA:·914afe56360d640d7d42d15182e1d23df78a9676fe8f4d7f4ffe3d4c67c9c60e·...·]-1">}</span><span·class="p">.</span><span·class="w"> |
| 198 | </span><span·class="o">#</span><span·class="ss">person</span><span·class="p"·data-group-id=" | 198 | </span><span·class="o">#</span><span·class="ss">person</span><span·class="p"·data-group-id="8420268043-3">{</span><span·class="ss">name</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"Joe"</span><span·class="p">,</span><span·class="ss">phone</span><span·class="w">·</span><span·class="o">=</[·...·truncated·by·diffoscope;·len:·469,·SHA:·1f57bdedd95d408157a9f69308e49ad5e288a2ca50a4da2722abe26d2f9e60d7·...·]-3">}</span><span·class="gp·unselectable"> |
| 199 | >·</span><span·class="o">#</span><span·class="ss">person</span><span·class="p"·data-group-id=" | 199 | >·</span><span·class="o">#</span><span·class="ss">person</span><span·class="p"·data-group-id="8420268043-5">{</span><span·class="ss">name</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">Name</span><span·class="p"·data-group-id="8420268043-5">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">P3</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Name</span><span·class="p">.</span><span·class="w"> |
| 200 | </span><span·class="s">"Joe"</span></code></pre><p>The·following·function·takes·a·list·of·<code·class="inline">person</code>·records·and·searches·for·the | 200 | </span><span·class="s">"Joe"</span></code></pre><p>The·following·function·takes·a·list·of·<code·class="inline">person</code>·records·and·searches·for·the |
| 201 | phone·number·of·a·person·with·a·particular·name:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">find_phone</span><span·class="p"·data-group-id=" | 201 | phone·number·of·a·person·with·a·particular·name:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">find_phone</span><span·class="p"·data-group-id="7075548721-1">(</span><span·class="p"·data-group-id="7075548721-2">[</span><span·class="o">#</span><span·class="ss">person</span><span·class="p"·data-group-id="7075548721-3">{</span><span·class="ss">name</span><span·class="o">=</span><span·class="n">Name</[·...·truncated·by·diffoscope;·len:·452,·SHA:·fd7ed26f3f84ff1236db70bc042e350318d7a710bcefb7d164012ff81fa92a96·...·]-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 202 | ····</span><span·class="p"·data-group-id=" | 202 | ····</span><span·class="p"·data-group-id="7075548721-4">{</span><span·class="ss">found</span><span·class="p">,</span><span·class="w">··</span><span·class="n">Phone</span><span·class="p"·data-group-id="7075548721-4">}</span><span·class="p">;</span><span·class="w"> |
| 203 | </span><span·class="nf">find_phone</span><span·class="p"·data-group-id=" | 203 | </span><span·class="nf">find_phone</span><span·class="p"·data-group-id="7075548721-5">(</span><span·class="p"·data-group-id="7075548721-6">[</span><span·class="p">_</span><span·class="p">|</span><span·class="w">·</span><span·class="n">T</span><span·class="p"·data-group-id="7075548721-6">]</span><span·class="p">,</span><span·cl[·...·truncated·by·diffoscope;·len:·84,·SHA:·d7eaa8eb8916e52eb5a9aeaa72097a9b791716461e7049a9943018dffe5398eb·...·]-5">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 204 | ····</span><span·class="nf">find_phone</span><span·class="p"·data-group-id=" | 204 | ····</span><span·class="nf">find_phone</span><span·class="p"·data-group-id="7075548721-7">(</span><span·class="n">T</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Name</span><span·class="p"·data-group-id="7075548721-7">)</span><span·class="p">;</span><span·class="w"> |
| 205 | </span><span·class="nf">find_phone</span><span·class="p"·data-group-id=" | 205 | </span><span·class="nf">find_phone</span><span·class="p"·data-group-id="7075548721-8">(</span><span·class="p"·data-group-id="7075548721-9">[</span><span·class="p"·data-group-id="7075548721-9">]</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Name</span><span·class="p"·data-group-id="7075548721-8">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 206 | ····</span><span·class="ss">not_found</span><span·class="p">.</span></code></pre><p>The·fields·referred·to·in·the·pattern·can·be·given·in·any·order.</p><h2·id="nested-records"·class="section-heading"> | 206 | ····</span><span·class="ss">not_found</span><span·class="p">.</span></code></pre><p>The·fields·referred·to·in·the·pattern·can·be·given·in·any·order.</p><h2·id="nested-records"·class="section-heading"> |
| 207 | ··<a·href="#nested-records"·class="hover-link"> | 207 | ··<a·href="#nested-records"·class="hover-link"> |
| 208 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 208 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 209 | ··</a> | 209 | ··</a> |
| 210 | ··<span·class="text">Nested·Records</span> | 210 | ··<span·class="text">Nested·Records</span> |
| 211 | </h2> | 211 | </h2> |
| 212 | <p>The·value·of·a·field·in·a·record·can·be·an·instance·of·a·record.·Retrieval·of | 212 | <p>The·value·of·a·field·in·a·record·can·be·an·instance·of·a·record.·Retrieval·of |
| 213 | nested·data·can·be·done·stepwise,·or·in·a·single·step,·as·shown·in·the·following | 213 | nested·data·can·be·done·stepwise,·or·in·a·single·step,·as·shown·in·the·following |
| 214 | example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id="7155241086-1">(</span><span·class="ss">name</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="7155241086-2">{</span><span·class="ss">first</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"Robert"</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">last</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"Ericsson"</span><span·class="p"·data-group-id="7155241086-2">}</span><span·class="p"·data-group-id="7155241086-1">)</span><span·class="p">.</span><span·class="w"> | ||
| 215 | </span><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id=" | 214 | example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id="8427077053-1">(</span><span·class="ss">name</span><span·class="p">,</span><span·class="w">·</span><span·class="[·...·truncated·by·diffoscope;·len:·469,·SHA:·302412dd37e3595054ef7ce910e677f8eb43f8774f19a04e4b28ef6921dbc752·...·]">)</span><span·class="p">.</span><span·class="w"> |
| 215 | </span><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id="8427077053-3">(</span><span·class="ss">person</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8427077053-4">{</span><span·class="ss">name</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">name</span><span·class="p"·data-group-id="8427077053-5">{</span><span·class="p"·data-group-id="8427077053-5">}</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">phone</span><span·class="p"·data-group-id="8427077053-4">}</span><span·class="p"·data-group-id="8427077053-3">)</span><span·class="p">.</span><span·class="w"> | ||
| 216 | </span><span·class="nf">demo</span><span·class="p"·data-group-id=" | 216 | </span><span·class="nf">demo</span><span·class="p"·data-group-id="8427077053-6">(</span><span·class="p"·data-group-id="8427077053-6">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 217 | ··</span><span·class="n">P</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">person</span><span·class="p"·data-group-id=" | 217 | ··</span><span·class="n">P</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">person</span><span·class="p"·data-group-id="8427077053-7">{</span><span·class="ss">name</span><span·class="o">=</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">name</span><span·class="p"·data-group-id="8427077053-8">{</span><span·class="ss">first</span><span·class="o">=</span>[·...·truncated·by·diffoscope;·len:·381,·SHA:·bbfc9d582b9a88f4d0778b983e049527673a7ba33109ee201e7a2080358a6a89·...·]-7">}</span><span·class="p">,</span><span·class="w"> |
| 218 | ··</span><span·class="n">First</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 218 | ··</span><span·class="n">First</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="8427077053-9">(</span><span·class="n">P</span><span·class="o">#</span><span·class="ss">person</span><span·class="p">.</span><span·class="ss">name</span><span·class="p"·data-group-id="8427077053-9">)</span><span·class="o">#</span><span·class="ss">name</span><span·class="p">.</span><span·class="ss">first</span><span·class="p">.</span></code></pre><p>Here,·<code·class="inline">demo()</code>·evaluates·to·<code·class="inline">"Robert"</code>.</p><h2·id="a-longer-example"·class="section-heading"> |
| 219 | ··<a·href="#a-longer-example"·class="hover-link"> | 219 | ··<a·href="#a-longer-example"·class="hover-link"> |
| 220 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 220 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 221 | ··</a> | 221 | ··</a> |
| 222 | ··<span·class="text">A·Longer·Example</span> | 222 | ··<span·class="text">A·Longer·Example</span> |
| 223 | </h2> | 223 | </h2> |
| 224 | <p>Comments·are·embedded·in·the·following·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%%·File:·person.hrl</span><span·class="w"> | 224 | <p>Comments·are·embedded·in·the·following·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%%·File:·person.hrl</span><span·class="w"> |
| Offset 230, 48 lines modified | Offset 230, 48 lines modified | ||
| 230 | </span><span·class="c1">%%····name:··A·string·(default·is·undefined).</span><span·class="w"> | 230 | </span><span·class="c1">%%····name:··A·string·(default·is·undefined).</span><span·class="w"> |
| 231 | </span><span·class="c1">%%····age:···An·integer·(default·is·undefined).</span><span·class="w"> | 231 | </span><span·class="c1">%%····age:···An·integer·(default·is·undefined).</span><span·class="w"> |
| 232 | </span><span·class="c1">%%····phone:·A·list·of·integers·(default·is·[]).</span><span·class="w"> | 232 | </span><span·class="c1">%%····phone:·A·list·of·integers·(default·is·[]).</span><span·class="w"> |
| 233 | </span><span·class="c1">%%····dict:··A·dictionary·containing·various·information</span><span·class="w"> | 233 | </span><span·class="c1">%%····dict:··A·dictionary·containing·various·information</span><span·class="w"> |
| 234 | </span><span·class="c1">%%···········about·the·person.</span><span·class="w"> | 234 | </span><span·class="c1">%%···········about·the·person.</span><span·class="w"> |
| 235 | </span><span·class="c1">%%···········A·{Key,·Value}·list·(default·is·the·empty·list).</span><span·class="w"> | 235 | </span><span·class="c1">%%···········A·{Key,·Value}·list·(default·is·the·empty·list).</span><span·class="w"> |
| 236 | </span><span·class="c1">%%------------------------------------------------------------</span><span·class="w"> | 236 | </span><span·class="c1">%%------------------------------------------------------------</span><span·class="w"> |
| 237 | </span><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id=" | 237 | </span><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id="9168787105-1">(</span><span·class="ss">person</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9168787105-2">{</span><span·class="ss">name</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">age</span>[·...·truncated·by·diffoscope;·len:·878,·SHA:·3a9dbdbcbea6234744d5a50911d305569c7094364a20ad956c08508f5e72123d·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 238 | </span><span·class="p">-</span><span·class="na">include</span><span·class="p"·data-group-id=" | 238 | </span><span·class="p">-</span><span·class="na">include</span><span·class="p"·data-group-id="5689391834-2">(</span><span·class="s">"person.hrl"</span><span·class="p"·data-group-id="5689391834-2">)</span><span·class="p">.</span><span·class="w"> |
| 239 | </span><span·class="p">-</span><span·class="na">compile</span><span·class="p"·data-group-id=" | 239 | </span><span·class="p">-</span><span·class="na">compile</span><span·class="p"·data-group-id="5689391834-3">(</span><span·class="ss">export_all</span><span·class="p"·data-group-id="5689391834-3">)</span><span·class="p">.</span><span·class="w">·</span><span·class="c1">%·For·test·purposes·only.</span><span·class="w"> |
| 240 | </span><span·class="c1">%%·This·creates·an·instance·of·a·person.</span><span·class="w"> | 240 | </span><span·class="c1">%%·This·creates·an·instance·of·a·person.</span><span·class="w"> |
| 241 | </span><span·class="c1">%%···Note:·The·phone·number·is·not·supplied·so·the</span><span·class="w"> | 241 | </span><span·class="c1">%%···Note:·The·phone·number·is·not·supplied·so·the</span><span·class="w"> |
| 242 | </span><span·class="c1">%%·········default·value·[]·will·be·used.</span><span·class="w"> | 242 | </span><span·class="c1">%%·········default·value·[]·will·be·used.</span><span·class="w"> |
| 243 | </span><span·class="nf">make_hacker_without_phone</span><span·class="p"·data-group-id=" | 243 | </span><span·class="nf">make_hacker_without_phone</span><span·class="p"·data-group-id="5689391834-4">(</span><span·class="n">Name</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Age</span><span·class="p"·data-group-id="5689391834-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 244 | ···</span><span·class="o">#</span><span·class="ss">person</span><span·class="p"·data-group-id=" | 244 | ···</span><span·class="o">#</span><span·class="ss">person</span><span·class="p"·data-group-id="5689391834-5">{</span><span·class="ss">name</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">Name</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">age</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">Age</span><span·class="p">,</span><span·class="w"> |
| 245 | ···········</span><span·class="ss">dict</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 245 | ···········</span><span·class="ss">dict</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="5689391834-6">[</span><span·class="p"·data-group-id="5689391834-7">{</span><span·class="ss">computer_knowledge</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">excellent</span><span·class="p"·data-group-id="5689391834-7">}</span><span·class="p">,</span><span·class="w"> |
| 246 | ···················</span><span·class="p"·data-group-id=" | 246 | ···················</span><span·class="p"·data-group-id="5689391834-8">{</span><span·class="ss">drinks</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">coke</span><span·class="p"·data-group-id="5689391834-8">}</span><span·class="p"·data-group-id="5689391834-6">]</span><span·class="p"·data-g[·...·truncated·by·diffoscope;·len:·19,·SHA:·c723ded6561ef38842e7e28d96f6ff9e8cccc89b069f35c34f4e7385303389d1·...·]-5">}</span><span·class="p">.</span><span·class="w"> |
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| 163 | ······<p·class="built-using"> | 163 | ······<p·class="built-using"> |
| 164 | ········Built·using | 164 | ········Built·using |
| 165 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 165 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 166 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 166 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 167 | ······</p> | 167 | ······</p> |
| 168 | <p>Copyright·©·1996-202 | 168 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 169 | ····</footer> | 169 | ····</footer> |
| 170 | ··</div> | 170 | ··</div> |
| 171 | </main> | 171 | </main> |
| 172 | </div> | 172 | </div> |
| 173 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 173 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 174 | ··<script> | 174 | ··<script> |
| 175 | ··let·initialized·=·false; | 175 | ··let·initialized·=·false; |
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| 165 | ······<p·class="built-using"> | 165 | ······<p·class="built-using"> |
| 166 | ········Built·using | 166 | ········Built·using |
| 167 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 167 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 168 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 168 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 169 | ······</p> | 169 | ······</p> |
| 170 | <p>Copyright·©·1996-202 | 170 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 171 | ····</footer> | 171 | ····</footer> |
| 172 | ··</div> | 172 | ··</div> |
| 173 | </main> | 173 | </main> |
| 174 | </div> | 174 | </div> |
| 175 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 175 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 176 | ··<script> | 176 | ··<script> |
| 177 | ··let·initialized·=·false; | 177 | ··let·initialized·=·false; |
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| 124 | </h2> | 124 | </h2> |
| 125 | <p>To·illustrate·this,·the·messenger·example·from·the·previous·section·is·divided | 125 | <p>To·illustrate·this,·the·messenger·example·from·the·previous·section·is·divided |
| 126 | into·the·following·five·files:</p><ul><li><p><code·class="inline">mess_config.hrl</code></p><p>Header·file·for·configuration·data</p></li><li><p><code·class="inline">mess_interface.hrl</code></p><p>Interface·definitions·between·the·client·and·the·messenger</p></li><li><p><code·class="inline">user_interface.erl</code></p><p>Functions·for·the·user·interface</p></li><li><p><code·class="inline">mess_client.erl</code></p><p>Functions·for·the·client·side·of·the·messenger</p></li><li><p><code·class="inline">mess_server.erl</code></p><p>Functions·for·the·server·side·of·the·messenger</p></li></ul><p>While·doing·this,·the·message·passing·interface·between·the·shell,·the·client, | 126 | into·the·following·five·files:</p><ul><li><p><code·class="inline">mess_config.hrl</code></p><p>Header·file·for·configuration·data</p></li><li><p><code·class="inline">mess_interface.hrl</code></p><p>Interface·definitions·between·the·client·and·the·messenger</p></li><li><p><code·class="inline">user_interface.erl</code></p><p>Functions·for·the·user·interface</p></li><li><p><code·class="inline">mess_client.erl</code></p><p>Functions·for·the·client·side·of·the·messenger</p></li><li><p><code·class="inline">mess_server.erl</code></p><p>Functions·for·the·server·side·of·the·messenger</p></li></ul><p>While·doing·this,·the·message·passing·interface·between·the·shell,·the·client, |
| 127 | and·the·server·is·cleaned·up·and·is·defined·using·<em>records</em>.·Also,·<em>macros</em>·are | 127 | and·the·server·is·cleaned·up·and·is·defined·using·<em>records</em>.·Also,·<em>macros</em>·are |
| 128 | introduced:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%%%----FILE·mess_config.hrl----</span><span·class="w"> | 128 | introduced:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%%%----FILE·mess_config.hrl----</span><span·class="w"> |
| 129 | </span><span·class="c1">%%%·Configure·the·location·of·the·server·node,</span><span·class="w"> | 129 | </span><span·class="c1">%%%·Configure·the·location·of·the·server·node,</span><span·class="w"> |
| 130 | </span><span·class="p">-</span><span·class="na">define</span><span·class="p"·data-group-id=" | 130 | </span><span·class="p">-</span><span·class="na">define</span><span·class="p"·data-group-id="5217763551-1">(</span><span·class="ss">server_node</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">messenger@super</span><span·class="p"·data-group-id="5217763551-1">)</span><span·class="p">.</span><span·class="w"> |
| 131 | </span><span·class="c1">%%%----END·FILE----</span></code></pre><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%%%----FILE·mess_interface.hrl----</span><span·class="w"> | 131 | </span><span·class="c1">%%%----END·FILE----</span></code></pre><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%%%----FILE·mess_interface.hrl----</span><span·class="w"> |
| 132 | </span><span·class="c1">%%%·Message·interface·between·client·and·server·and·client·shell·for</span><span·class="w"> | 132 | </span><span·class="c1">%%%·Message·interface·between·client·and·server·and·client·shell·for</span><span·class="w"> |
| 133 | </span><span·class="c1">%%%·messenger·program</span><span·class="w"> | 133 | </span><span·class="c1">%%%·messenger·program</span><span·class="w"> |
| 134 | </span><span·class="c1">%%%Messages·from·Client·to·server·received·in·server/1·function.</span><span·class="w"> | 134 | </span><span·class="c1">%%%Messages·from·Client·to·server·received·in·server/1·function.</span><span·class="w"> |
| 135 | </span><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id=" | 135 | </span><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id="7567445425-1">(</span><span·class="ss">logon</span><span·class="p">,</span><span·class="p"·data-group-id="7567445425-2">{</span><span·class="ss">client_pid</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">username</span><span·class="p[·...·truncated·by·diffoscope;·len:·79,·SHA:·bd270192917d5ea13dfd36ac297c20fd229ee11c7b818973bde303db3472079b·...·]5-1">)</span><span·class="p">.</span><span·class="w"> |
| 136 | </span><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id=" | 136 | </span><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id="7567445425-3">(</span><span·class="ss">message</span><span·class="p">,</span><span·class="p"·data-group-id="7567445425-4">{</span><span·class="ss">client_pid</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">to_name</span><span·class="[·...·truncated·by·diffoscope;·len:·159,·SHA:·ffa76e0383f1ad11197f7d6738d88aabe9a0a70e9fc7ace7b658ea01c0f7a681·...·]5-3">)</span><span·class="p">.</span><span·class="w"> |
| 137 | </span><span·class="c1">%%%·{'EXIT',·ClientPid,·Reason}··(client·terminated·or·unreachable.</span><span·class="w"> | 137 | </span><span·class="c1">%%%·{'EXIT',·ClientPid,·Reason}··(client·terminated·or·unreachable.</span><span·class="w"> |
| 138 | </span><span·class="c1">%%%·Messages·from·Server·to·Client,·received·in·await_result/0·function</span><span·class="w"> | 138 | </span><span·class="c1">%%%·Messages·from·Server·to·Client,·received·in·await_result/0·function</span><span·class="w"> |
| 139 | </span><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id=" | 139 | </span><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id="7567445425-5">(</span><span·class="ss">abort_client</span><span·class="p">,</span><span·class="p"·data-group-id="7567445425-6">{</span><span·class="ss">message</span><span·class="p"·data-group-id="7567445425-6">}</span><span·class="p"·data-group-id="756744[·...·truncated·by·diffoscope;·len:·3,·SHA:·2d86377d4cc3e6c85bab00dd407f8c5b657c239c6af3109de6cdf4d418aa2d89·...·]5-5">)</span><span·class="p">.</span><span·class="w"> |
| 140 | </span><span·class="c1">%%%·Messages·are:·user_exists_at_other_node,</span><span·class="w"> | 140 | </span><span·class="c1">%%%·Messages·are:·user_exists_at_other_node,</span><span·class="w"> |
| 141 | </span><span·class="c1">%%%···············you_are_not_logged_on</span><span·class="w"> | 141 | </span><span·class="c1">%%%···············you_are_not_logged_on</span><span·class="w"> |
| 142 | </span><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id=" | 142 | </span><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id="7567445425-7">(</span><span·class="ss">server_reply</span><span·class="p">,</span><span·class="p"·data-group-id="7567445425-8">{</span><span·class="ss">message</span><span·class="p"·data-group-id="7567445425-8">}</span><span·class="p"·data-group-id="756744[·...·truncated·by·diffoscope;·len:·3,·SHA:·2d86377d4cc3e6c85bab00dd407f8c5b657c239c6af3109de6cdf4d418aa2d89·...·]5-7">)</span><span·class="p">.</span><span·class="w"> |
| 143 | </span><span·class="c1">%%%·Messages·are:·logged_on</span><span·class="w"> | 143 | </span><span·class="c1">%%%·Messages·are:·logged_on</span><span·class="w"> |
| 144 | </span><span·class="c1">%%%···············receiver_not_found</span><span·class="w"> | 144 | </span><span·class="c1">%%%···············receiver_not_found</span><span·class="w"> |
| 145 | </span><span·class="c1">%%%···············sent··(Message·has·been·sent·(no·guarantee)</span><span·class="w"> | 145 | </span><span·class="c1">%%%···············sent··(Message·has·been·sent·(no·guarantee)</span><span·class="w"> |
| 146 | </span><span·class="c1">%%%·Messages·from·Server·to·Client·received·in·client/1·function</span><span·class="w"> | 146 | </span><span·class="c1">%%%·Messages·from·Server·to·Client·received·in·client/1·function</span><span·class="w"> |
| 147 | </span><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id=" | 147 | </span><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id="7567445425-9">(</span><span·class="ss">message_from</span><span·class="p">,</span><span·class="p"·data-group-id="7567445425-10">{</span><span·class="ss">from_name</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">message</span><span·cl[·...·truncated·by·diffoscope;·len:·86,·SHA:·8f386bfab0a37954a90c92c2cbca2c6f7f2be1551c5fba78384fec5ba70b3ec5·...·]5-9">)</span><span·class="p">.</span><span·class="w"> |
| 148 | </span><span·class="c1">%%%·Messages·from·shell·to·Client·received·in·client/1·function</span><span·class="w"> | 148 | </span><span·class="c1">%%%·Messages·from·shell·to·Client·received·in·client/1·function</span><span·class="w"> |
| 149 | </span><span·class="c1">%%%·spawn(mess_client,·client,·[server_node(),·Name])</span><span·class="w"> | 149 | </span><span·class="c1">%%%·spawn(mess_client,·client,·[server_node(),·Name])</span><span·class="w"> |
| 150 | </span><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id=" | 150 | </span><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id="7567445425-11">(</span><span·class="ss">message_to</span><span·class="p">,</span><span·class="p"·data-group-id="7567445425-12">{</span><span·class="ss">to_name</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">message</span><span·class[·...·truncated·by·diffoscope;·len:·83,·SHA:·0409fd28f398d927280740d6d7614e4c92ca0e9451e361001457b9417bb148fd·...·]5-11">)</span><span·class="p">.</span><span·class="w"> |
| 151 | </span><span·class="c1">%%%·logoff</span><span·class="w"> | 151 | </span><span·class="c1">%%%·logoff</span><span·class="w"> |
| 152 | </span><span·class="c1">%%%----END·FILE----</span></code></pre><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%%%----FILE·user_interface.erl----</span><span·class="w"> | 152 | </span><span·class="c1">%%%----END·FILE----</span></code></pre><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%%%----FILE·user_interface.erl----</span><span·class="w"> |
| 153 | </span><span·class="c1">%%%·User·interface·to·the·messenger·program</span><span·class="w"> | 153 | </span><span·class="c1">%%%·User·interface·to·the·messenger·program</span><span·class="w"> |
| 154 | </span><span·class="c1">%%%·login(Name)</span><span·class="w"> | 154 | </span><span·class="c1">%%%·login(Name)</span><span·class="w"> |
| 155 | </span><span·class="c1">%%%·····One·user·at·a·time·can·log·in·from·each·Erlang·node·in·the</span><span·class="w"> | 155 | </span><span·class="c1">%%%·····One·user·at·a·time·can·log·in·from·each·Erlang·node·in·the</span><span·class="w"> |
| Offset 170, 177 lines modified | Offset 170, 177 lines modified | ||
| 170 | </span><span·class="c1">%%%·····Logs·off·anybody·at·that·node</span><span·class="w"> | 170 | </span><span·class="c1">%%%·····Logs·off·anybody·at·that·node</span><span·class="w"> |
| 171 | </span><span·class="c1">%%%·message(ToName,·Message)</span><span·class="w"> | 171 | </span><span·class="c1">%%%·message(ToName,·Message)</span><span·class="w"> |
| 172 | </span><span·class="c1">%%%·····sends·Message·to·ToName.·Error·messages·if·the·user·of·this</span><span·class="w"> | 172 | </span><span·class="c1">%%%·····sends·Message·to·ToName.·Error·messages·if·the·user·of·this</span><span·class="w"> |
| 173 | </span><span·class="c1">%%%·····function·is·not·logged·on·or·if·ToName·is·not·logged·on·at</span><span·class="w"> | 173 | </span><span·class="c1">%%%·····function·is·not·logged·on·or·if·ToName·is·not·logged·on·at</span><span·class="w"> |
| 174 | </span><span·class="c1">%%%·····any·node.</span><span·class="w"> | 174 | </span><span·class="c1">%%%·····any·node.</span><span·class="w"> |
| 175 | </span><span·class="w"> | 175 | </span><span·class="w"> |
| 176 | </span><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 176 | </span><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="7706893262-1">(</span><span·class="ss">user_interface</span><span·class="p"·data-group-id="7706893262-1">)</span><span·class="p">.</span><span·class="w"> |
| 177 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 177 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="7706893262-2">(</span><span·class="p"·data-group-id="7706893262-3">[</span><span·class="ss">logon</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">logoff</span><span·class="p">/</span><[·...·truncated·by·diffoscope;·len:·246,·SHA:·2cf6a2b709d2bb4d65a632d4f4530138dba17338f5935e85ad8ba53650ea6425·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 178 | </span><span·class="p">-</span><span·class="na">include</span><span·class="p"·data-group-id=" | 178 | </span><span·class="p">-</span><span·class="na">include</span><span·class="p"·data-group-id="7706893262-4">(</span><span·class="s">"mess_interface.hrl"</span><span·class="p"·data-group-id="7706893262-4">)</span><span·class="p">.</span><span·class="w"> |
| 179 | </span><span·class="p">-</span><span·class="na">include</span><span·class="p"·data-group-id=" | 179 | </span><span·class="p">-</span><span·class="na">include</span><span·class="p"·data-group-id="7706893262-5">(</span><span·class="s">"mess_config.hrl"</span><span·class="p"·data-group-id="7706893262-5">)</span><span·class="p">.</span><span·class="w"> |
| 180 | </span><span·class="nf">logon</span><span·class="p"·data-group-id=" | 180 | </span><span·class="nf">logon</span><span·class="p"·data-group-id="7706893262-6">(</span><span·class="n">Name</span><span·class="p"·data-group-id="7706893262-6">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 181 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nf">whereis</span><span·class="p"·data-group-id=" | 181 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nf">whereis</span><span·class="p"·data-group-id="7706893262-7">(</span><span·class="ss">mess_client</span><span·class="p"·data-group-id="7706893262-7">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 182 | ········</span><span·class="ss">undefined</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 182 | ········</span><span·class="ss">undefined</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 183 | ············</span><span·class="nf">register</span><span·class="p"·data-group-id=" | 183 | ············</span><span·class="nf">register</span><span·class="p"·data-group-id="7706893262-8">(</span><span·class="ss">mess_client</span><span·class="p">,</span><span·class="w"> |
| 184 | ·····················</span><span·class="nf">spawn</span><span·class="p"·data-group-id=" | 184 | ·····················</span><span·class="nf">spawn</span><span·class="p"·data-group-id="7706893262-9">(</span><span·class="ss">mess_client</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">client</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="7706893262-10">[</span><span·class="o">?</[·...·truncated·by·diffoscope;·len:·263,·SHA:·a6f724d0bb6b59c34d483a531cc29e77b572bec0facb50e8cde0238c063732f6·...·]-8">)</span><span·class="p">;</span><span·class="w"> |
| 185 | ········</span><span·class="p">_</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">already_logged_on</span><span·class="w"> | 185 | ········</span><span·class="p">_</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">already_logged_on</span><span·class="w"> |
| 186 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> | 186 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> |
| 187 | </span><span·class="nf">logoff</span><span·class="p"·data-group-id=" | 187 | </span><span·class="nf">logoff</span><span·class="p"·data-group-id="7706893262-11">(</span><span·class="p"·data-group-id="7706893262-11">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 188 | ····</span><span·class="ss">mess_client</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="ss">logoff</span><span·class="p">.</span><span·class="w"> | 188 | ····</span><span·class="ss">mess_client</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="ss">logoff</span><span·class="p">.</span><span·class="w"> |
| 189 | </span><span·class="nf">message</span><span·class="p"·data-group-id=" | 189 | </span><span·class="nf">message</span><span·class="p"·data-group-id="7706893262-12">(</span><span·class="n">ToName</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Message</span><span·class="p"·data-group-id="7706893262-12">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 190 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nf">whereis</span><span·class="p"·data-group-id=" | 190 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nf">whereis</span><span·class="p"·data-group-id="7706893262-13">(</span><span·class="ss">mess_client</span><span·class="p"·data-group-id="7706893262-13">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w">·</span><span·class="c1">%·Test·if·the·client·is·running</span><span·class="w"> |
| 191 | ········</span><span·class="ss">undefined</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 191 | ········</span><span·class="ss">undefined</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 192 | ············</span><span·class="ss">not_logged_on</span><span·class="p">;</span><span·class="w"> | 192 | ············</span><span·class="ss">not_logged_on</span><span·class="p">;</span><span·class="w"> |
| 193 | ········</span><span·class="p">_</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">mess_client</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">message_to</span><span·class="p"·data-group-id=" | 193 | ········</span><span·class="p">_</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">mess_client</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">message_to</span><span·class="p"·data-group-id="7706893262-14">{</span><span·class="ss">to_name</span><span·class="o">=</span><span·class="n">ToName</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">message</span><span·class="o">=</span><span·class="n">Message</span><span·class="p"·[·...·truncated·by·diffoscope;·len:·25,·SHA:·e901506702f4c4fc9fd9d185883a633dc223faedde5c6bb82b043cb55f246f6c·...·]-14">}</span><span·class="p">,</span><span·class="w"> |
| 194 | ·············</span><span·class="ss">ok</span><span·class="w"> | 194 | ·············</span><span·class="ss">ok</span><span·class="w"> |
| 195 | </span><span·class="k">end</span><span·class="p">.</span><span·class="w"> | 195 | </span><span·class="k">end</span><span·class="p">.</span><span·class="w"> |
| 196 | </span><span·class="c1">%%%----END·FILE----</span></code></pre><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%%%----FILE·mess_client.erl----</span><span·class="w"> | 196 | </span><span·class="c1">%%%----END·FILE----</span></code></pre><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%%%----FILE·mess_client.erl----</span><span·class="w"> |
| 197 | </span><span·class="c1">%%%·The·client·process·which·runs·on·each·user·node</span><span·class="w"> | 197 | </span><span·class="c1">%%%·The·client·process·which·runs·on·each·user·node</span><span·class="w"> |
| 198 | </span><span·class="w"> | 198 | </span><span·class="w"> |
| 199 | </span><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 199 | </span><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="1399208207-1">(</span><span·class="ss">mess_client</span><span·class="p"·data-group-id="1399208207-1">)</span><span·class="p">.</span><span·class="w"> |
| 200 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 200 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="1399208207-2">(</span><span·class="p"·data-group-id="1399208207-3">[</span><span·class="ss">client</span><span·class="p">/</span><span·class="mi">2</span><span·class="p"·data-group-id="1399208207-3">]</span><span·class="p"·data-group-id="1399208207-2">)</span><span·class="p">.</span><span·class="w"> |
| 201 | </span><span·class="p">-</span><span·class="na">include</span><span·class="p"·data-group-id=" | 201 | </span><span·class="p">-</span><span·class="na">include</span><span·class="p"·data-group-id="1399208207-4">(</span><span·class="s">"mess_interface.hrl"</span><span·class="p"·data-group-id="1399208207-4">)</span><span·class="p">.</span><span·class="w"> |
| 202 | </span><span·class="nf">client</span><span·class="p"·data-group-id=" | 202 | </span><span·class="nf">client</span><span·class="p"·data-group-id="1399208207-5">(</span><span·class="n">Server_Node</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Name</span><span·class="p"·data-group-id="1399208207-5">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 203 | ····</span><span·class="p"·data-group-id=" | 203 | ····</span><span·class="p"·data-group-id="1399208207-6">{</span><span·class="ss">messenger</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Server_Node</span><span·class="p"·data-group-id="1399208207-6">}</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·<[·...·truncated·by·diffoscope;·len:·476,·SHA:·38f43f2eea0c5b5baf9b99fec6d1b5cf15b9607d30335776cc8f715207e66abd·...·]-7">}</span><span·class="p">,</span><span·class="w"> |
| 204 | ····</span><span·class="nf">await_result</span><span·class="p"·data-group-id=" | 204 | ····</span><span·class="nf">await_result</span><span·class="p"·data-group-id="1399208207-9">(</span><span·class="p"·data-group-id="1399208207-9">)</span><span·class="p">,</span><span·class="w"> |
| 205 | ····</span><span·class="nf">client</span><span·class="p"·data-group-id=" | 205 | ····</span><span·class="nf">client</span><span·class="p"·data-group-id="1399208207-10">(</span><span·class="n">Server_Node</span><span·class="p"·data-group-id="1399208207-10">)</span><span·class="p">.</span><span·class="w"> |
| 206 | </span><span·class="nf">client</span><span·class="p"·data-group-id=" | 206 | </span><span·class="nf">client</span><span·class="p"·data-group-id="1399208207-11">(</span><span·class="n">Server_Node</span><span·class="p"·data-group-id="1399208207-11">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 207 | ····</span><span·class="k">receive</span><span·class="w"> | 207 | ····</span><span·class="k">receive</span><span·class="w"> |
| 208 | ········</span><span·class="ss">logoff</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 208 | ········</span><span·class="ss">logoff</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 209 | ············</span><span·class="nf">exit</span><span·class="p"·data-group-id=" | 209 | ············</span><span·class="nf">exit</span><span·class="p"·data-group-id="1399208207-12">(</span><span·class="ss">normal</span><span·class="p"·data-group-id="1399208207-12">)</span><span·class="p">;</span><span·class="w"> |
| 210 | ········</span><span·class="o">#</span><span·class="ss">message_to</span><span·class="p"·data-group-id=" | 210 | ········</span><span·class="o">#</span><span·class="ss">message_to</span><span·class="p"·data-group-id="1399208207-13">{</span><span·class="ss">to_name</span><span·class="o">=</span><span·class="n">ToName</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">message</span><span·class="o">=</span><span·class="n">Message</span><span·class="p"·[·...·truncated·by·diffoscope;·len:·25,·SHA:·22992de70bdc354de7055befa1b03e0f565943e5688c6f57879c49f4cab491bf·...·]-13">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 211 | ············</span><span·class="p"·data-group-id=" | 211 | ············</span><span·class="p"·data-group-id="1399208207-14">{</span><span·class="ss">messenger</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Server_Node</span><span·class="p"·data-group-id="1399208207-14">}</span><span·class="w">·</span><span·class="o">!</span><span·class="w"> |
| 212 | ················</span><span·class="o">#</span><span·class="ss">message</span><span·class="p"·data-group-id=" | 212 | ················</span><span·class="o">#</span><span·class="ss">message</span><span·class="p"·data-group-id="1399208207-15">{</span><span·class="ss">client_pid</span><span·class="o">=</span><span·class="nf">self</span><span·class="p"·data-group-id="1399208207-16">(</span><span·class="p"·data-group-id="1399208207-16">)</span><span·class="p">,</span><span·class="w"[·...·truncated·by·diffoscope;·len:·267,·SHA:·013624b1e65b3130f3fab2166b10312b9bb0372d4a6f9590053c014ba2cc80fe·...·]-15">}</span><span·class="p">,</span><span·class="w"> |
| 213 | ············</span><span·class="nf">await_result</span><span·class="p"·data-group-id=" | 213 | ············</span><span·class="nf">await_result</span><span·class="p"·data-group-id="1399208207-17">(</span><span·class="p"·data-group-id="1399208207-17">)</span><span·class="p">;</span><span·class="w"> |
| 214 | ········</span><span·class="p"·data-group-id=" | 214 | ········</span><span·class="p"·data-group-id="1399208207-18">{</span><span·class="ss">message_from</span><span·class="p">,</span><span·class="w">·</span><span·class="n">FromName</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Message</span><span·class="p"·data-group-id="139920820[·...·truncated·by·diffoscope;·len:·1,·SHA:·7902699be42c8a8e46fbbb4501726517e86b22c56a189f7625a6da49081b2451·...·]-18">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 215 | ············</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 215 | ············</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="1399208207-19">(</span><span·class="s">"Message·from·</span><span·class="si">~p</span><span·class="s">:·</span><span·class="si">~p</span><span·class="si">~n</span><span·class="s">"</span><span·class="p">,</span><span·class="w">·</span><span·class[·...·truncated·by·diffoscope;·len:·247,·SHA:·7b73bb78683f1ef71a767dd21dbb218c7ab7ad20a7be4d1a44dd2b08366bb82e·...·]-19">)</span><span·class="w"> |
| 216 | ····</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> | 216 | ····</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> |
| 217 | ····</span><span·class="nf">client</span><span·class="p"·data-group-id=" | 217 | ····</span><span·class="nf">client</span><span·class="p"·data-group-id="1399208207-21">(</span><span·class="n">Server_Node</span><span·class="p"·data-group-id="1399208207-21">)</span><span·class="p">.</span><span·class="w"> |
| 218 | </span><span·class="c1">%%%·wait·for·a·response·from·the·server</span><span·class="w"> | 218 | </span><span·class="c1">%%%·wait·for·a·response·from·the·server</span><span·class="w"> |
| 219 | </span><span·class="nf">await_result</span><span·class="p"·data-group-id=" | 219 | </span><span·class="nf">await_result</span><span·class="p"·data-group-id="1399208207-22">(</span><span·class="p"·data-group-id="1399208207-22">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 220 | ····</span><span·class="k">receive</span><span·class="w"> | 220 | ····</span><span·class="k">receive</span><span·class="w"> |
| 221 | ········</span><span·class="o">#</span><span·class="ss">abort_client</span><span·class="p"·data-group-id=" | 221 | ········</span><span·class="o">#</span><span·class="ss">abort_client</span><span·class="p"·data-group-id="1399208207-23">{</span><span·class="ss">message</span><span·class="o">=</span><span·class="n">Why</span><span·class="p"·data-group-id="1399208207-23">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 222 | ············</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 222 | ············</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="1399208207-24">(</span><span·class="s">"</span><span·class="si">~p</span><span·class="si">~n</span><span·class="s">"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1399208207-25">[</span><span·class="n">Why</[·...·truncated·by·diffoscope;·len:·100,·SHA:·ba53a217f87ca3a59f1e9275d23bde39222ba8c5ebef19379caac421f0e700c2·...·]-24">)</span><span·class="p">,</span><span·class="w"> |
| 223 | ············</span><span·class="nf">exit</span><span·class="p"·data-group-id=" | 223 | ············</span><span·class="nf">exit</span><span·class="p"·data-group-id="1399208207-26">(</span><span·class="ss">normal</span><span·class="p"·data-group-id="1399208207-26">)</span><span·class="p">;</span><span·class="w"> |
| 224 | ········</span><span·class="o">#</span><span·class="ss">server_reply</span><span·class="p"·data-group-id=" | 224 | ········</span><span·class="o">#</span><span·class="ss">server_reply</span><span·class="p"·data-group-id="1399208207-27">{</span><span·class="ss">message</span><span·class="o">=</span><span·class="n">What</span><span·class="p"·data-group-id="1399208207-27">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 225 | ············</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 225 | ············</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="1399208207-28">(</span><span·class="s">"</span><span·class="si">~p</span><span·class="si">~n</span><span·class="s">"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1399208207-29">[</span><span·class="n">What<[·...·truncated·by·diffoscope;·len:·101,·SHA:·c08bbdd932197f6676c24af53833fea0b9fccc5aa131e8e876a6e4c376156bb3·...·]-28">)</span><span·class="w"> |
| 226 | ····</span><span·class="k">after</span><span·class="w">·</span><span·class="mi">5000</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 226 | ····</span><span·class="k">after</span><span·class="w">·</span><span·class="mi">5000</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 227 | ············</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 227 | ············</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="1399208207-30">(</span><span·class="s">"No·response·from·server</span><span·class="si">~n</span><span·class="s">"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1399208207-31">[</span><span·class="p"·data-gro[·...·truncated·by·diffoscope;·len:·71,·SHA:·f005b80d0f123c8ca373fd9334835960ea9a1e7f5103d472d7c2c63116d3ca2a·...·]-30">)</span><span·class="p">,</span><span·class="w"> |
| 228 | ············</span><span·class="nf">exit</span><span·class="p"·data-group-id=" | 228 | ············</span><span·class="nf">exit</span><span·class="p"·data-group-id="1399208207-32">(</span><span·class="ss">timeout</span><span·class="p"·data-group-id="1399208207-32">)</span><span·class="w"> |
| 229 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> | 229 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> |
| 230 | </span><span·class="c1">%%%----END·FILE---</span></code></pre><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%%%----FILE·mess_server.erl----</span><span·class="w"> | 230 | </span><span·class="c1">%%%----END·FILE---</span></code></pre><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%%%----FILE·mess_server.erl----</span><span·class="w"> |
| 231 | </span><span·class="c1">%%%·This·is·the·server·process·of·the·messenger·service</span><span·class="w"> | 231 | </span><span·class="c1">%%%·This·is·the·server·process·of·the·messenger·service</span><span·class="w"> |
| 232 | </span><span·class="w"> | 232 | </span><span·class="w"> |
| 233 | </span><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 233 | </span><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="4148945399-1">(</span><span·class="ss">mess_server</span><span·class="p"·data-group-id="4148945399-1">)</span><span·class="p">.</span><span·class="w"> |
| 234 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 234 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="4148945399-2">(</span><span·class="p"·data-group-id="4148945399-3">[</span><span·class="ss">start_server</span><span·class="p">/</span><span·class="mi">0</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">server</span><span·class="p">/<[·...·truncated·by·diffoscope;·len:·125,·SHA:·b4da8e3a32d0146dadefc407b4e0c1f63d53f37fe3c3a8accf617d3ab53f2214·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 235 | </span><span·class="p">-</span><span·class="na">include</span><span·class="p"·data-group-id=" | 235 | </span><span·class="p">-</span><span·class="na">include</span><span·class="p"·data-group-id="4148945399-4">(</span><span·class="s">"mess_interface.hrl"</span><span·class="p"·data-group-id="4148945399-4">)</span><span·class="p">.</span><span·class="w"> |
| 236 | </span><span·class="nf">server</span><span·class="p"·data-group-id=" | 236 | </span><span·class="nf">server</span><span·class="p"·data-group-id="4148945399-5">(</span><span·class="p"·data-group-id="4148945399-5">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 237 | ····</span><span·class="nf">process_flag</span><span·class="p"·data-group-id=" | 237 | ····</span><span·class="nf">process_flag</span><span·class="p"·data-group-id="4148945399-6">(</span><span·class="ss">trap_exit</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">true</span><span·class="p"·data-group-id="4148945399-6">)</span><span·class="p">,</span><span·class="w"> |
| 238 | ····</span><span·class="nf">server</span><span·class="p"·data-group-id=" | 238 | ····</span><span·class="nf">server</span><span·class="p"·data-group-id="4148945399-7">(</span><span·class="p"·data-group-id="4148945399-8">[</span><span·class="p"·data-group-id="4148945399-8">]</span><span·class="p"·data-group-id="4148945399-7">)</span><span·class="p">.</span><span·class="w"> |
| 239 | </span><span·class="c1">%%%·the·user·list·has·the·format·[{ClientPid1,·Name1},{ClientPid22,·Name2},...]</span><span·class="w"> | 239 | </span><span·class="c1">%%%·the·user·list·has·the·format·[{ClientPid1,·Name1},{ClientPid22,·Name2},...]</span><span·class="w"> |
| 240 | </span><span·class="nf">server</span><span·class="p"·data-group-id=" | 240 | </span><span·class="nf">server</span><span·class="p"·data-group-id="4148945399-9">(</span><span·class="n">User_List</span><span·class="p"·data-group-id="4148945399-9">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 241 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 241 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="4148945399-10">(</span><span·class="s">"User·list·=·</span><span·class="si">~p</span><span·class="si">~n</span><span·class="s">"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4148945399-11">[</span><span·cla[·...·truncated·by·diffoscope;·len:·118,·SHA:·ae6d97559c880094a078e29f8b055f1c9daaf166ccfc34e71c0bc325559d2b4b·...·]-10">)</span><span·class="p">,</span><span·class="w"> |
| 242 | ····</span><span·class="k">receive</span><span·class="w"> | 242 | ····</span><span·class="k">receive</span><span·class="w"> |
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| 120 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 120 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 121 | ··</a> | 121 | ··</a> |
| 122 | ··<span·class="text">Function·Declaration·Syntax</span> | 122 | ··<span·class="text">Function·Declaration·Syntax</span> |
| 123 | </h2> | 123 | </h2> |
| 124 | <p>A·<em>function·declaration</em>·is·a·sequence·of·function·clauses·separated·by | 124 | <p>A·<em>function·declaration</em>·is·a·sequence·of·function·clauses·separated·by |
| 125 | semicolons,·and·terminated·by·a·period·(<code·class="inline">.</code>).</p><p>A·<em>function·clause</em>·consists·of·a·<em>clause·head</em>·and·a·<em>clause·body</em>,·separated·by | 125 | semicolons,·and·terminated·by·a·period·(<code·class="inline">.</code>).</p><p>A·<em>function·clause</em>·consists·of·a·<em>clause·head</em>·and·a·<em>clause·body</em>,·separated·by |
| 126 | <code·class="inline">-></code>.</p><p>A·clause·<em>head</em>·consists·of·the·function·name,·an·argument·list,·and·an·optional | 126 | <code·class="inline">-></code>.</p><p>A·clause·<em>head</em>·consists·of·the·function·name,·an·argument·list,·and·an·optional |
| 127 | guard·sequence·beginning·with·the·keyword·<code·class="inline">when</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Name</span><span·class="p"·data-group-id=" | 127 | guard·sequence·beginning·with·the·keyword·<code·class="inline">when</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Name</span><span·class="p"·data-group-id="8362451757-1">(</span><span·class="n">Pattern11</span><span·class="p">,</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p">,</span><span·class="n">Pattern1N</span><span·class="p"·data-group-id="8362451757-1">)</sp[·...·truncated·by·diffoscope;·len:·204,·SHA:·566a80b360e8f310ed5343b0a87465562af0f23794e3a3d985f460f52c6f94f0·...·]-2">]</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 128 | ····</span><span·class="n">Body1</span><span·class="p">;</span><span·class="w"> | 128 | ····</span><span·class="n">Body1</span><span·class="p">;</span><span·class="w"> |
| 129 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p">;</span><span·class="w"> | 129 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p">;</span><span·class="w"> |
| 130 | </span><span·class="n">Name</span><span·class="p"·data-group-id=" | 130 | </span><span·class="n">Name</span><span·class="p"·data-group-id="8362451757-3">(</span><span·class="n">PatternK1</span><span·class="p">,</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p">,</span><span·class="n">PatternKN</span><span·class="p"·data-group-id="8362451757-3">)</sp[·...·truncated·by·diffoscope;·len:·204,·SHA:·52921148145ee4ec50680e636ec11ddfbd2b4bbc57bca4f1d94960b1a24b6969·...·]-4">]</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 131 | ····</span><span·class="n">BodyK</span><span·class="p">.</span></code></pre><p>The·function·name·is·an·atom.·Each·argument·is·a·pattern.</p><p>The·number·of·arguments·<code·class="inline">N</code>·is·the·<em>arity</em>·of·the·function.·A·function·is | 131 | ····</span><span·class="n">BodyK</span><span·class="p">.</span></code></pre><p>The·function·name·is·an·atom.·Each·argument·is·a·pattern.</p><p>The·number·of·arguments·<code·class="inline">N</code>·is·the·<em>arity</em>·of·the·function.·A·function·is |
| 132 | uniquely·defined·by·the·module·name,·function·name,·and·arity.·That·is,·two | 132 | uniquely·defined·by·the·module·name,·function·name,·and·arity.·That·is,·two |
| 133 | functions·with·the·same·name·and·in·the·same·module,·but·with·different·arities | 133 | functions·with·the·same·name·and·in·the·same·module,·but·with·different·arities |
| 134 | are·two·different·functions.</p><p>A·function·named·<code·class="inline">f</code>·in·module·<code·class="inline">mod</code>·and·with·arity·<code·class="inline">N</code>·is·often·denoted·as | 134 | are·two·different·functions.</p><p>A·function·named·<code·class="inline">f</code>·in·module·<code·class="inline">mod</code>·and·with·arity·<code·class="inline">N</code>·is·often·denoted·as |
| 135 | <code·class="inline">mod:f/N</code>.</p><p>A·clause·<em>body</em>·consists·of·a·sequence·of·expressions·separated·by·comma·(<code·class="inline">,</code>):</p><pre><code·class="text">Expr1, | 135 | <code·class="inline">mod:f/N</code>.</p><p>A·clause·<em>body</em>·consists·of·a·sequence·of·expressions·separated·by·comma·(<code·class="inline">,</code>):</p><pre><code·class="text">Expr1, |
| 136 | ..., | 136 | ..., |
| 137 | ExprN</code></pre><p>Valid·Erlang·expressions·and·guard·sequences·are·described·in | 137 | ExprN</code></pre><p>Valid·Erlang·expressions·and·guard·sequences·are·described·in |
| 138 | <a·href="expressions.html">Expressions</a>.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">fact</span><span·class="p"·data-group-id=" | 138 | <a·href="expressions.html">Expressions</a>.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">fact</span><span·class="p"·data-group-id="7191042223-1">(</span><span·class="n">N</span><span·class="p"·data-group-id="7191042223-1">)</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><span·class="n">N</span><span·class="w">·</span><span·class="o">></span><span·class="w">·</span><span·class="mi">0</span><span·class="w">·</span><span·class="p">-></span><span·class="w">··</span><span·class="c1">%·first·clause·head</span><span·class="w"> |
| 139 | ····</span><span·class="n">N</span><span·class="w">·</span><span·class="o">*</span><span·class="w">·</span><span·class="nf">fact</span><span·class="p"·data-group-id=" | 139 | ····</span><span·class="n">N</span><span·class="w">·</span><span·class="o">*</span><span·class="w">·</span><span·class="nf">fact</span><span·class="p"·data-group-id="7191042223-2">(</span><span·class="n">N</span><span·class="o">-</span><span·class="mi">1</span><span·class="p"·data-group-id="7191042223-2">)</span><span·class="p">;</span><span·class="w">·····</span><span·class="c1">%·first·clause·body</span><span·class="w"> |
| 140 | </span><span·class="nf">fact</span><span·class="p"·data-group-id=" | 140 | </span><span·class="nf">fact</span><span·class="p"·data-group-id="7191042223-3">(</span><span·class="mi">0</span><span·class="p"·data-group-id="7191042223-3">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·············</span><span·class="c1">%·second·clause·head</span><span·class="w"> |
| 141 | ····</span><span·class="mi">1</span><span·class="p">.</span><span·class="w">·················</span><span·class="c1">%·second·clause·body</span></code></pre><p><a·href=""·id="eval"></a></p><h2·id="function-evaluation"·class="section-heading"> | 141 | ····</span><span·class="mi">1</span><span·class="p">.</span><span·class="w">·················</span><span·class="c1">%·second·clause·body</span></code></pre><p><a·href=""·id="eval"></a></p><h2·id="function-evaluation"·class="section-heading"> |
| 142 | ··<a·href="#function-evaluation"·class="hover-link"> | 142 | ··<a·href="#function-evaluation"·class="hover-link"> |
| 143 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 143 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 144 | ··</a> | 144 | ··</a> |
| 145 | ··<span·class="text">Function·Evaluation</span> | 145 | ··<span·class="text">Function·Evaluation</span> |
| 146 | </h2> | 146 | </h2> |
| 147 | <p>When·a·function·<code·class="inline">M:F/N</code>·is·called,·first·the·code·for·the·function·is·located. | 147 | <p>When·a·function·<code·class="inline">M:F/N</code>·is·called,·first·the·code·for·the·function·is·located. |
| 148 | If·the·function·cannot·be·found,·an·<code·class="inline">undef</code>·runtime·error·occurs.·Notice·that | 148 | If·the·function·cannot·be·found,·an·<code·class="inline">undef</code>·runtime·error·occurs.·Notice·that |
| 149 | the·function·must·be·exported·to·be·visible·outside·the·module·it·is·defined·in.</p><p>If·the·function·is·found,·the·function·clauses·are·scanned·sequentially·until·a | 149 | the·function·must·be·exported·to·be·visible·outside·the·module·it·is·defined·in.</p><p>If·the·function·is·found,·the·function·clauses·are·scanned·sequentially·until·a |
| 150 | clause·is·found·that·fulfills·both·of·the·following·two·conditions:</p><ol><li>The·patterns·in·the·clause·head·can·be·successfully·matched·against·the·given | 150 | clause·is·found·that·fulfills·both·of·the·following·two·conditions:</p><ol><li>The·patterns·in·the·clause·head·can·be·successfully·matched·against·the·given |
| 151 | arguments.</li><li>The·guard·sequence,·if·any,·is·true.</li></ol><p>If·such·a·clause·cannot·be·found,·a·<code·class="inline">function_clause</code>·runtime·error·occurs.</p><p>If·such·a·clause·is·found,·the·corresponding·clause·body·is·evaluated.·That·is, | 151 | arguments.</li><li>The·guard·sequence,·if·any,·is·true.</li></ol><p>If·such·a·clause·cannot·be·found,·a·<code·class="inline">function_clause</code>·runtime·error·occurs.</p><p>If·such·a·clause·is·found,·the·corresponding·clause·body·is·evaluated.·That·is, |
| 152 | the·expressions·in·the·body·are·evaluated·sequentially·and·the·value·of·the·last | 152 | the·expressions·in·the·body·are·evaluated·sequentially·and·the·value·of·the·last |
| 153 | expression·is·returned.</p><p>Consider·the·function·<code·class="inline">fact</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="9 | 153 | expression·is·returned.</p><p>Consider·the·function·<code·class="inline">fact</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="9271760665-1">(</span><span·class="ss">mod</span><span·class="p"·data-group-id="9271760665-1">)</span><span·class="p">.</span><span·class="w"> |
| 154 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="9 | 154 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="9271760665-2">(</span><span·class="p"·data-group-id="9271760665-3">[</span><span·class="ss">fact</span><span·class="p">/</span><span·class="mi">1</span><span·class="p"·data-group-id="9271760665-3">]</span><span·class="p"·data-group-id="9271760665-2">)</span><span·class="p">.</span><span·class="w"> |
| 155 | </span><span·class="nf">fact</span><span·class="p"·data-group-id="9 | 155 | </span><span·class="nf">fact</span><span·class="p"·data-group-id="9271760665-4">(</span><span·class="n">N</span><span·class="p"·data-group-id="9271760665-4">)</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><span·class="n">N</span><span·class="w">·</span><span·class="o">></span><span·class="w">·</span><span·class="mi">0</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 156 | ····</span><span·class="n">N</span><span·class="w">·</span><span·class="o">*</span><span·class="w">·</span><span·class="nf">fact</span><span·class="p"·data-group-id="9 | 156 | ····</span><span·class="n">N</span><span·class="w">·</span><span·class="o">*</span><span·class="w">·</span><span·class="nf">fact</span><span·class="p"·data-group-id="9271760665-5">(</span><span·class="n">N</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="mi">1</span><span·class="p"·data-group-id="9271760665-5">)</span><span·class="p">;</span><span·class="w"> |
| 157 | </span><span·class="nf">fact</span><span·class="p"·data-group-id="9 | 157 | </span><span·class="nf">fact</span><span·class="p"·data-group-id="9271760665-6">(</span><span·class="mi">0</span><span·class="p"·data-group-id="9271760665-6">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 158 | ····</span><span·class="mi">1</span><span·class="p">.</span></code></pre><p>Assume·that·you·want·to·calculate·the·factorial·for·1:</p><pre><code·class="text">1>·mod:fact(1).</code></pre><p>Evaluation·starts·at·the·first·clause.·The·pattern·<code·class="inline">N</code>·is·matched·against | 158 | ····</span><span·class="mi">1</span><span·class="p">.</span></code></pre><p>Assume·that·you·want·to·calculate·the·factorial·for·1:</p><pre><code·class="text">1>·mod:fact(1).</code></pre><p>Evaluation·starts·at·the·first·clause.·The·pattern·<code·class="inline">N</code>·is·matched·against |
| 159 | argument·1.·The·matching·succeeds·and·the·guard·(<code·class="inline">N·>·0</code>)·is·true,·thus·<code·class="inline">N</code>·is | 159 | argument·1.·The·matching·succeeds·and·the·guard·(<code·class="inline">N·>·0</code>)·is·true,·thus·<code·class="inline">N</code>·is |
| 160 | bound·to·1,·and·the·corresponding·body·is·evaluated:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">N</span><span·class="w">·</span><span·class="o">*</span><span·class="w">·</span><span·class="nf">fact</span><span·class="p"·data-group-id=" | 160 | bound·to·1,·and·the·corresponding·body·is·evaluated:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">N</span><span·class="w">·</span><span·class="o">*</span><span·class="w">·</span><span·class="nf">fact</span><span·class="p"·data-group-id="7845491855-1">(</span><span·class="n">N</span><span·class="o">-</span><span·class="mi">1</span><span·class="p"·data-group-id="7845491855-1">)</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="7[·...·truncated·by·diffoscope;·len:·288,·SHA:·2bda8b4366eb9d4176b2b04c996c7131969fb33183d9a9ad97bee73104ce5430·...·]-2">)</span><span·class="w"> |
| 161 | </span><span·class="mi">1</span><span·class="w">·</span><span·class="o">*</span><span·class="w">·</span><span·class="nf">fact</span><span·class="p"·data-group-id=" | 161 | </span><span·class="mi">1</span><span·class="w">·</span><span·class="o">*</span><span·class="w">·</span><span·class="nf">fact</span><span·class="p"·data-group-id="7845491855-3">(</span><span·class="mi">0</span><span·class="p"·data-group-id="7845491855-3">)</span></code></pre><p>Now,·<code·class="inline">fact(0)</code>·is·called,·and·the·function·clauses·are·scanned |
| 162 | sequentially·again.·First,·the·pattern·<code·class="inline">N</code>·is·matched·against·0.·The | 162 | sequentially·again.·First,·the·pattern·<code·class="inline">N</code>·is·matched·against·0.·The |
| 163 | matching·succeeds,·but·the·guard·(<code·class="inline">N·>·0</code>)·is·false.·Second,·the | 163 | matching·succeeds,·but·the·guard·(<code·class="inline">N·>·0</code>)·is·false.·Second,·the |
| 164 | pattern·<code·class="inline">0</code>·is·matched·against·the·argument·<code·class="inline">0</code>.·The·matching·succeeds | 164 | pattern·<code·class="inline">0</code>·is·matched·against·the·argument·<code·class="inline">0</code>.·The·matching·succeeds |
| 165 | and·the·body·is·evaluated:</p><pre><code·class="text">1·*·fact(0)·=> | 165 | and·the·body·is·evaluated:</p><pre><code·class="text">1·*·fact(0)·=> |
| 166 | 1·*·1·=> | 166 | 1·*·1·=> |
| 167 | 1</code></pre><p>Evaluation·has·succeed·and·<code·class="inline">mod:fact(1)</code>·returns·1.</p><p>If·<code·class="inline">mod:fact/1</code>·is·called·with·a·negative·number·as·argument,·no·clause·head | 167 | 1</code></pre><p>Evaluation·has·succeed·and·<code·class="inline">mod:fact(1)</code>·returns·1.</p><p>If·<code·class="inline">mod:fact/1</code>·is·called·with·a·negative·number·as·argument,·no·clause·head |
| 168 | matches.·A·<code·class="inline">function_clause</code>·runtime·error·occurs.</p><h2·id="tail-recursion"·class="section-heading"> | 168 | matches.·A·<code·class="inline">function_clause</code>·runtime·error·occurs.</p><h2·id="tail-recursion"·class="section-heading"> |
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| 173 | ··</a> | 173 | ··</a> |
| 174 | ··<span·class="text">Tail·recursion</span> | 174 | ··<span·class="text">Tail·recursion</span> |
| 175 | </h2> | 175 | </h2> |
| 176 | <p>If·the·last·expression·of·a·function·body·is·a·function·call,·a | 176 | <p>If·the·last·expression·of·a·function·body·is·a·function·call,·a |
| 177 | <em>tail-recursive·call</em>·is·done.·This·is·to·ensure·that·no·system | 177 | <em>tail-recursive·call</em>·is·done.·This·is·to·ensure·that·no·system |
| 178 | resources,·for·example,·call·stack,·are·consumed.·This·means·that·an | 178 | resources,·for·example,·call·stack,·are·consumed.·This·means·that·an |
| 179 | infinite·loop·using·tail-recursive·calls·will·not·exhaust·the·call | 179 | infinite·loop·using·tail-recursive·calls·will·not·exhaust·the·call |
| 180 | stack·and·can·(in·principle)·run·forever.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">loop</span><span·class="p"·data-group-id=" | 180 | stack·and·can·(in·principle)·run·forever.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">loop</span><span·class="p"·data-group-id="3629203761-1">(</span><span·class="n">N</span><span·class="p"·data-group-id="3629203761-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 181 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 181 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="3629203761-2">(</span><span·class="s">"</span><span·class="si">~w</span><span·class="si">~n</span><span·class="s">"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3629203761-3">[</span><span·class="n">N</span[·...·truncated·by·diffoscope;·len:·95,·SHA:·34b8d723db0594ff7c37ab6de8fcd4fac47a3c68d2598b7a3e6cea13651b2b17·...·]-2">)</span><span·class="p">,</span><span·class="w"> |
| 182 | ····</span><span·class="nf">loop</span><span·class="p"·data-group-id=" | 182 | ····</span><span·class="nf">loop</span><span·class="p"·data-group-id="3629203761-4">(</span><span·class="n">N</span><span·class="o">+</span><span·class="mi">1</span><span·class="p"·data-group-id="3629203761-4">)</span><span·class="p">.</span></code></pre><p>The·earlier·factorial·example·is·a·counter-example.·It·is·not |
| 183 | tail-recursive,·since·a·multiplication·is·done·on·the·result·of·the·recursive | 183 | tail-recursive,·since·a·multiplication·is·done·on·the·result·of·the·recursive |
| 184 | call·to·<code·class="inline">fact(N-1)</code>.</p><h2·id="built-in-functions-bifs"·class="section-heading"> | 184 | call·to·<code·class="inline">fact(N-1)</code>.</p><h2·id="built-in-functions-bifs"·class="section-heading"> |
| 185 | ··<a·href="#built-in-functions-bifs"·class="hover-link"> | 185 | ··<a·href="#built-in-functions-bifs"·class="hover-link"> |
| 186 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 186 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 187 | ··</a> | 187 | ··</a> |
| 188 | ··<span·class="text">Built-In·Functions·(BIFs)</span> | 188 | ··<span·class="text">Built-In·Functions·(BIFs)</span> |
| 189 | </h2> | 189 | </h2> |
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| 191 | system.·BIFs·do·things·that·are·difficult·or·impossible·to·implement | 191 | system.·BIFs·do·things·that·are·difficult·or·impossible·to·implement |
| 192 | in·Erlang.·Most·of·the·BIFs·belong·to·module·<a·href="../../erts-16.0/doc/html/erlang.html"><code·class="inline">erlang</code></a>,·but·there | 192 | in·Erlang.·Most·of·the·BIFs·belong·to·module·<a·href="../../erts-16.0/doc/html/erlang.html"><code·class="inline">erlang</code></a>,·but·there |
| 193 | are·also·BIFs·belonging·to·a·few·other·modules,·for·example·<a·href="../../lib/stdlib-7.0/doc/html/lists.html"><code·class="inline">lists</code></a> | 193 | are·also·BIFs·belonging·to·a·few·other·modules,·for·example·<a·href="../../lib/stdlib-7.0/doc/html/lists.html"><code·class="inline">lists</code></a> |
| 194 | and·<a·href="../../lib/stdlib-7.0/doc/html/ets.html"><code·class="inline">ets</code></a>.</p><p>The·most·commonly·used·BIFs·belonging·to·<a·href="../../erts-16.0/doc/html/erlang.html"><code·class="inline">erlang</code></a>·are·<em>auto-imported</em>.·They·do | 194 | and·<a·href="../../lib/stdlib-7.0/doc/html/ets.html"><code·class="inline">ets</code></a>.</p><p>The·most·commonly·used·BIFs·belonging·to·<a·href="../../erts-16.0/doc/html/erlang.html"><code·class="inline">erlang</code></a>·are·<em>auto-imported</em>.·They·do |
| 195 | not·need·to·be·prefixed·with·the·module·name.·Which·BIFs·that·are·auto-imported | 195 | not·need·to·be·prefixed·with·the·module·name.·Which·BIFs·that·are·auto-imported |
| 196 | is·specified·in·the·<a·href="../../erts-16.0/doc/html/erlang.html"><code·class="inline">erlang</code></a>·module·in·ERTS.·For·example,·standard-type | 196 | is·specified·in·the·<a·href="../../erts-16.0/doc/html/erlang.html"><code·class="inline">erlang</code></a>·module·in·ERTS.·For·example,·standard-type |
| 197 | conversion·BIFs·like·<code·class="inline">atom_to_list</code>·and·BIFs·allowed·in·guards·can·be·called | 197 | conversion·BIFs·like·<code·class="inline">atom_to_list</code>·and·BIFs·allowed·in·guards·can·be·called |
| 198 | without·specifying·the·module·name.</p><p><em>Examples:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nf">tuple_size</span><span·class="p"·data-group-id=" | 198 | without·specifying·the·module·name.</p><p><em>Examples:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nf">tuple_size</span><span·class="p"·data-group-id="1594443473-1">(</span><span·class="p"·data-group-id="1594443473-2">{</span><span·class="ss">a</span><span·class="p">,</span><span·class="ss">b</span><span·class="p">,</span><span·class="ss">c</span><span·class="p"·data-group-id="1594443473-2">}</span><span[·...·truncated·by·diffoscope;·len:·36,·SHA:·5d3dfaf6e453bcf06ce7082ca683645c6884a74b8f2d3958f217a7d7a05f09f7·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 199 | </span><span·class="mi">3</span><span·class="gp·unselectable"> | 199 | </span><span·class="mi">3</span><span·class="gp·unselectable"> |
| 200 | 2>·</span><span·class="nf">atom_to_list</span><span·class="p"·data-group-id=" | 200 | 2>·</span><span·class="nf">atom_to_list</span><span·class="p"·data-group-id="1594443473-3">(</span><span·class="ss">'Erlang'</span><span·class="p"·data-group-id="1594443473-3">)</span><span·class="p">.</span><span·class="w"> |
| 201 | </span><span·class="s">"Erlang"</span></code></pre> | 201 | </span><span·class="s">"Erlang"</span></code></pre> |
| 202 | </div> | 202 | </div> |
| 203 | <div·class="bottom-actions"·id="bottom-actions"> | 203 | <div·class="bottom-actions"·id="bottom-actions"> |
| 204 | ··<div·class="bottom-actions-item"> | 204 | ··<div·class="bottom-actions-item"> |
| 205 | ······<a·href="documentation.html"·class="bottom-actions-button"·rel="prev"> | 205 | ······<a·href="documentation.html"·class="bottom-actions-button"·rel="prev"> |
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| 245 | ······<p·class="built-using"> | 245 | ······<p·class="built-using"> |
| 246 | ········Built·using | 246 | ········Built·using |
| 247 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 247 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 248 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 248 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 249 | ······</p> | 249 | ······</p> |
| 250 | <p>Copyright·©·1996-202 | 250 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 251 | ····</footer> | 251 | ····</footer> |
| 252 | ··</div> | 252 | ··</div> |
| 253 | </main> | 253 | </main> |
| 254 | </div> | 254 | </div> |
| 255 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 255 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 256 | ··<script> | 256 | ··<script> |
| 257 | ··let·initialized·=·false; | 257 | ··let·initialized·=·false; |
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| 125 | (grow·and·shrink·dynamically)·with·small·memory·footprint,·fast·to·create·and | 125 | (grow·and·shrink·dynamically)·with·small·memory·footprint,·fast·to·create·and |
| 126 | terminate,·and·the·scheduling·overhead·is·low.</p><h2·id="process-creation"·class="section-heading"> | 126 | terminate,·and·the·scheduling·overhead·is·low.</p><h2·id="process-creation"·class="section-heading"> |
| 127 | ··<a·href="#process-creation"·class="hover-link"> | 127 | ··<a·href="#process-creation"·class="hover-link"> |
| 128 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 128 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 129 | ··</a> | 129 | ··</a> |
| 130 | ··<span·class="text">Process·Creation</span> | 130 | ··<span·class="text">Process·Creation</span> |
| 131 | </h2> | 131 | </h2> |
| 132 | <p>A·process·is·created·by·calling·<a·href="../../erts-16.0/doc/html/erlang.html#spawn/3"><code·class="inline">spawn()</code></a>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">spawn</span><span·class="p"·data-group-id=" | 132 | <p>A·process·is·created·by·calling·<a·href="../../erts-16.0/doc/html/erlang.html#spawn/3"><code·class="inline">spawn()</code></a>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">spawn</span><span·class="p"·data-group-id="3384517067-1">(</span><span·class="n">Module</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Name</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Args</span><span·class="p"·data-group-id="3384517067-1">)</span><s[·...·truncated·by·diffoscope;·len:·194,·SHA:·022be2e7c8003b61321f3674e90bc0149cc22aaa947f45c1921e35dcbc1a3968·...·]7-2">)</span><span·class="w"> |
| 133 | ··</span><span·class="n">Module</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">Name</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">atom</span><span·class="p"·data-group-id=" | 133 | ··</span><span·class="n">Module</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">Name</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">atom</span><span·class="p"·data-group-id="3384517067-3">(</span><span·class="p"·data-group-id="3384517067-3">)</span><span·class="w"> |
| 134 | ··</span><span·class="n">Args</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 134 | ··</span><span·class="n">Args</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="3384517067-4">[</span><span·class="n">Arg1</span><span·class="p">,</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p">,</span><span·class="n">ArgN</span><span·class="p"·data-group-id="3384517067-4">]</span><span·class="w"> |
| 135 | ····</span><span·class="n">ArgI</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">term</span><span·class="p"·data-group-id=" | 135 | ····</span><span·class="n">ArgI</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">term</span><span·class="p"·data-group-id="3384517067-5">(</span><span·class="p"·data-group-id="3384517067-5">)</span></code></pre><p><code·class="inline">spawn()</code>·creates·a·new·process·and·returns·the·pid.</p><p>The·new·process·starts·executing·in·<code·class="inline">Module:Name(Arg1,...,ArgN)</code>·where·the |
| 136 | arguments·are·the·elements·of·the·(possible·empty)·<code·class="inline">Args</code>·argument·list.</p><p>There·exist·a·number·of·different·<code·class="inline">spawn</code>·BIFs:</p><ul><li><a·href="../../erts-16.0/doc/html/erlang.html#spawn/4"><code·class="inline">spawn/1,2,3,4</code></a></li><li><a·href="../../erts-16.0/doc/html/erlang.html#spawn_link/4"><code·class="inline">spawn_link/1,2,3,4</code></a></li><li><a·href="../../erts-16.0/doc/html/erlang.html#spawn_monitor/4"><code·class="inline">spawn_monitor/1,2,3,4</code></a></li><li><a·href="../../erts-16.0/doc/html/erlang.html#spawn_opt/5"><code·class="inline">spawn_opt/2,3,4,5</code></a></li><li><a·href="../../erts-16.0/doc/html/erlang.html#spawn_request/5"><code·class="inline">spawn_request/1,2,3,4,5</code></a></li></ul><h2·id="registered-processes"·class="section-heading"> | 136 | arguments·are·the·elements·of·the·(possible·empty)·<code·class="inline">Args</code>·argument·list.</p><p>There·exist·a·number·of·different·<code·class="inline">spawn</code>·BIFs:</p><ul><li><a·href="../../erts-16.0/doc/html/erlang.html#spawn/4"><code·class="inline">spawn/1,2,3,4</code></a></li><li><a·href="../../erts-16.0/doc/html/erlang.html#spawn_link/4"><code·class="inline">spawn_link/1,2,3,4</code></a></li><li><a·href="../../erts-16.0/doc/html/erlang.html#spawn_monitor/4"><code·class="inline">spawn_monitor/1,2,3,4</code></a></li><li><a·href="../../erts-16.0/doc/html/erlang.html#spawn_opt/5"><code·class="inline">spawn_opt/2,3,4,5</code></a></li><li><a·href="../../erts-16.0/doc/html/erlang.html#spawn_request/5"><code·class="inline">spawn_request/1,2,3,4,5</code></a></li></ul><h2·id="registered-processes"·class="section-heading"> |
| 137 | ··<a·href="#registered-processes"·class="hover-link"> | 137 | ··<a·href="#registered-processes"·class="hover-link"> |
| 138 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 138 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 139 | ··</a> | 139 | ··</a> |
| 140 | ··<span·class="text">Registered·Processes</span> | 140 | ··<span·class="text">Registered·Processes</span> |
| 141 | </h2> | 141 | </h2> |
| 142 | <p>Besides·addressing·a·process·by·using·its·pid,·there·are·also·BIFs·for | 142 | <p>Besides·addressing·a·process·by·using·its·pid,·there·are·also·BIFs·for |
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| 648 | ······<p·class="built-using"> | 648 | ······<p·class="built-using"> |
| 649 | ········Built·using | 649 | ········Built·using |
| 650 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 650 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 651 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 651 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 652 | ······</p> | 652 | ······</p> |
| 653 | <p>Copyright·©·1996-202 | 653 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 654 | ····</footer> | 654 | ····</footer> |
| 655 | ··</div> | 655 | ··</div> |
| 656 | </main> | 656 | </main> |
| 657 | </div> | 657 | </div> |
| 658 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 658 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 659 | ··<script> | 659 | ··<script> |
| 660 | ··let·initialized·=·false; | 660 | ··let·initialized·=·false; |
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| 123 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 123 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 124 | ··</a> | 124 | ··</a> |
| 125 | ··<span·class="text">Defining·Records</span> | 125 | ··<span·class="text">Defining·Records</span> |
| 126 | </h2> | 126 | </h2> |
| 127 | <p>A·record·definition·consists·of·the·name·of·the·record,·followed·by·the·field | 127 | <p>A·record·definition·consists·of·the·name·of·the·record,·followed·by·the·field |
| 128 | names·of·the·record.·Record·and·field·names·must·be·atoms.·Each·field·can·be | 128 | names·of·the·record.·Record·and·field·names·must·be·atoms.·Each·field·can·be |
| 129 | given·an·optional·default·value.·If·no·default·value·is·supplied,·<code·class="inline">undefined</code>·is | 129 | given·an·optional·default·value.·If·no·default·value·is·supplied,·<code·class="inline">undefined</code>·is |
| 130 | used.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id=" | 130 | used.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id="0685912735-1">(</span><span·class="n">Name</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0685912735-2">{</span><span·class="n">Field1</span><span·class="w">·</span><span·class="p"·data-group-id="0685912735-3">[</span>[·...·truncated·by·diffoscope;·len:·117,·SHA:·f0561a1b0085a58f9180f852ae5c27e66b197cd72a54d294ea2b65d3d9fceea9·...·]-3">]</span><span·class="p">,</span><span·class="w"> |
| 131 | ···············</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> | 131 | ···············</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> |
| 132 | ···············</span><span·class="n">FieldN</span><span·class="w">·</span><span·class="p"·data-group-id=" | 132 | ···············</span><span·class="n">FieldN</span><span·class="w">·</span><span·class="p"·data-group-id="0685912735-4">[</span><span·class="o">=</span><span·class="w">·</span><span·class="n">ExprN</span><span·class="p"·data-group-id="0685912735-4">]</span><span·class="p"·data-group-id="0685912735-2">}</span><span·class="p"·data-group-id="0685912735-1">)</span><span·class="p">.</span></code></pre><p>The·default·value·for·a·field·is·an·arbitrary·expression,·except·that·it·must |
| 133 | not·use·any·variables.</p><p>A·record·definition·can·be·placed·anywhere·among·the·attributes·and·function | 133 | not·use·any·variables.</p><p>A·record·definition·can·be·placed·anywhere·among·the·attributes·and·function |
| 134 | declarations·of·a·module,·but·the·definition·must·come·before·any·usage·of·the | 134 | declarations·of·a·module,·but·the·definition·must·come·before·any·usage·of·the |
| 135 | record.</p><p>If·a·record·is·used·in·several·modules,·it·is·recommended·that·the·record | 135 | record.</p><p>If·a·record·is·used·in·several·modules,·it·is·recommended·that·the·record |
| 136 | definition·is·placed·in·an·include·file.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Change</h4><p>Starting·from·Erlang/OTP·26,·records·can·be·defined·in·the·Erlang·shell | 136 | definition·is·placed·in·an·include·file.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Change</h4><p>Starting·from·Erlang/OTP·26,·records·can·be·defined·in·the·Erlang·shell |
| 137 | using·the·syntax·described·in·this·section.·In·earlier·releases,·it·was | 137 | using·the·syntax·described·in·this·section.·In·earlier·releases,·it·was |
| 138 | necessary·to·use·the·<a·href="../../lib/stdlib-7.0/doc/html/shell.html"><code·class="inline">shell</code></a>·built-in·function·<code·class="inline">rd/2</code>.</p></section><h2·id="creating-records"·class="section-heading"> | 138 | necessary·to·use·the·<a·href="../../lib/stdlib-7.0/doc/html/shell.html"><code·class="inline">shell</code></a>·built-in·function·<code·class="inline">rd/2</code>.</p></section><h2·id="creating-records"·class="section-heading"> |
| 139 | ··<a·href="#creating-records"·class="hover-link"> | 139 | ··<a·href="#creating-records"·class="hover-link"> |
| Offset 143, 32 lines modified | Offset 143, 32 lines modified | ||
| 143 | </h2> | 143 | </h2> |
| 144 | <p>The·following·expression·creates·a·new·<code·class="inline">Name</code>·record·where·the·value·of·each | 144 | <p>The·following·expression·creates·a·new·<code·class="inline">Name</code>·record·where·the·value·of·each |
| 145 | field·<code·class="inline">FieldI</code>·is·the·value·of·evaluating·the·corresponding·expression·<code·class="inline">ExprI</code>:</p><pre><code·class="text">#Name{Field1=Expr1,·...,·FieldK=ExprK}</code></pre><p>The·fields·can·be·in·any·order,·not·necessarily·the·same·order·as·in·the·record | 145 | field·<code·class="inline">FieldI</code>·is·the·value·of·evaluating·the·corresponding·expression·<code·class="inline">ExprI</code>:</p><pre><code·class="text">#Name{Field1=Expr1,·...,·FieldK=ExprK}</code></pre><p>The·fields·can·be·in·any·order,·not·necessarily·the·same·order·as·in·the·record |
| 146 | definition,·and·fields·can·be·omitted.·Omitted·fields·get·their·respective | 146 | definition,·and·fields·can·be·omitted.·Omitted·fields·get·their·respective |
| 147 | default·value·instead.</p><p>If·several·fields·are·to·be·assigned·the·same·value,·the·following·construction | 147 | default·value·instead.</p><p>If·several·fields·are·to·be·assigned·the·same·value,·the·following·construction |
| 148 | can·be·used:</p><pre><code·class="text">#Name{Field1=Expr1,·...,·FieldK=ExprK,·_=ExprL}</code></pre><p>Omitted·fields·then·get·the·value·of·evaluating·<code·class="inline">ExprL</code>·instead·of·their·default | 148 | can·be·used:</p><pre><code·class="text">#Name{Field1=Expr1,·...,·FieldK=ExprK,·_=ExprL}</code></pre><p>Omitted·fields·then·get·the·value·of·evaluating·<code·class="inline">ExprL</code>·instead·of·their·default |
| 149 | values.·This·feature·is·primarily·intended·to·be·used·to·create·patterns·for·ETS | 149 | values.·This·feature·is·primarily·intended·to·be·used·to·create·patterns·for·ETS |
| 150 | and·Mnesia·match·functions.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id=" | 150 | and·Mnesia·match·functions.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id="0286823829-1">(</span><span·class="ss">person</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0286823829-2">{</span><span·class="ss">name</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">phone</spa[·...·truncated·by·diffoscope;·len:·175,·SHA:·a623500b70d50e8be4be70b4275ccdd52a69795f6c766a07675456c66fa90f73·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 151 | </span><span·class="nf">lookup</span><span·class="p"·data-group-id=" | 151 | </span><span·class="nf">lookup</span><span·class="p"·data-group-id="0286823829-3">(</span><span·class="n">Name</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Tab</span><span·class="p"·data-group-id="0286823829-3">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 152 | ····</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">match_object</span><span·class="p"·data-group-id=" | 152 | ····</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">match_object</span><span·class="p"·data-group-id="0286823829-4">(</span><span·class="n">Tab</span><span·class="p">,</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">person</span><span·class="p"·data-group-id="0286823829-5">{</span><span·class="ss">name</span><span·class="o">=</span><[·...·truncated·by·diffoscope;·len:·251,·SHA:·ebf9cd52debc3a1aed490d1af347ed5f42281cb32995740271b772d2de2e77e2·...·]-4">)</span><span·class="p">.</span></code></pre><h2·id="accessing-record-fields"·class="section-heading"> |
| 153 | ··<a·href="#accessing-record-fields"·class="hover-link"> | 153 | ··<a·href="#accessing-record-fields"·class="hover-link"> |
| 154 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 154 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 155 | ··</a> | 155 | ··</a> |
| 156 | ··<span·class="text">Accessing·Record·Fields</span> | 156 | ··<span·class="text">Accessing·Record·Fields</span> |
| 157 | </h2> | 157 | </h2> |
| 158 | <pre><code·class="text">Expr#Name.Field</code></pre><p>Returns·the·value·of·the·specified·field.·<code·class="inline">Expr</code>·is·to·evaluate·to·a·<code·class="inline">Name</code> | 158 | <pre><code·class="text">Expr#Name.Field</code></pre><p>Returns·the·value·of·the·specified·field.·<code·class="inline">Expr</code>·is·to·evaluate·to·a·<code·class="inline">Name</code> |
| 159 | record.</p><p><em>Example</em>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id="5 | 159 | record.</p><p><em>Example</em>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id="5955922436-1">(</span><span·class="ss">person</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="5955922436-2">{</span><span·class="ss">name</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">phone</span[·...·truncated·by·diffoscope;·len:·174,·SHA:·e9a9bc41fd978ba5689063fb417cb4fc3ff13ebf7ce1591357ef27c00703e817·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 160 | </span><span·class="nf">get_person_name</span><span·class="p"·data-group-id="5 | 160 | </span><span·class="nf">get_person_name</span><span·class="p"·data-group-id="5955922436-3">(</span><span·class="n">Person</span><span·class="p"·data-group-id="5955922436-3">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 161 | ····</span><span·class="n">Person</span><span·class="o">#</span><span·class="ss">person</span><span·class="p">.</span><span·class="ss">name</span><span·class="p">.</span></code></pre><p>The·following·expression·returns·the·position·of·the·specified·field·in·the | 161 | ····</span><span·class="n">Person</span><span·class="o">#</span><span·class="ss">person</span><span·class="p">.</span><span·class="ss">name</span><span·class="p">.</span></code></pre><p>The·following·expression·returns·the·position·of·the·specified·field·in·the |
| 162 | tuple·representation·of·the·record:</p><pre><code·class="text">#Name.Field</code></pre><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id=" | 162 | tuple·representation·of·the·record:</p><pre><code·class="text">#Name.Field</code></pre><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id="9796435659-1">(</span><span·class="ss">person</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9796435659-2">{</span><span·class="ss">name</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">phone</spa[·...·truncated·by·diffoscope;·len:·175,·SHA:·15bfee4bfc42e378f5b563506cc7a79795d794e9ff2c346e25299c123e4c0c21·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 163 | </span><span·class="nf">lookup</span><span·class="p"·data-group-id=" | 163 | </span><span·class="nf">lookup</span><span·class="p"·data-group-id="9796435659-3">(</span><span·class="n">Name</span><span·class="p">,</span><span·class="w">·</span><span·class="n">List</span><span·class="p"·data-group-id="9796435659-3">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 164 | ····</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">keyfind</span><span·class="p"·data-group-id=" | 164 | ····</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">keyfind</span><span·class="p"·data-group-id="9796435659-4">(</span><span·class="n">Name</span><span·class="p">,</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">person</span><span·class="p">.</span><span·class="ss">name</span><span·class="p">,</span><span·class="w">·</span><span[·...·truncated·by·diffoscope;·len:·63,·SHA:·540abd0fb32de1a4c2ac2d96ef8df7d9a2ee5bb35d595aee1910d76e93aa5169·...·]-4">)</span><span·class="p">.</span></code></pre><h2·id="updating-records"·class="section-heading"> |
| 165 | ··<a·href="#updating-records"·class="hover-link"> | 165 | ··<a·href="#updating-records"·class="hover-link"> |
| 166 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 166 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 167 | ··</a> | 167 | ··</a> |
| 168 | ··<span·class="text">Updating·Records</span> | 168 | ··<span·class="text">Updating·Records</span> |
| 169 | </h2> | 169 | </h2> |
| 170 | <pre><code·class="text">Expr#Name{Field1=Expr1,·...,·FieldK=ExprK}</code></pre><p><code·class="inline">Expr</code>·is·to·evaluate·to·a·<code·class="inline">Name</code>·record.·A·copy·of·this·record·is·returned, | 170 | <pre><code·class="text">Expr#Name{Field1=Expr1,·...,·FieldK=ExprK}</code></pre><p><code·class="inline">Expr</code>·is·to·evaluate·to·a·<code·class="inline">Name</code>·record.·A·copy·of·this·record·is·returned, |
| 171 | with·the·value·of·each·specified·field·<code·class="inline">FieldI</code>·changed·to·the·value·of | 171 | with·the·value·of·each·specified·field·<code·class="inline">FieldI</code>·changed·to·the·value·of |
| Offset 178, 51 lines modified | Offset 178, 51 lines modified | ||
| 178 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 178 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 179 | ··</a> | 179 | ··</a> |
| 180 | ··<span·class="text">Records·in·Guards</span> | 180 | ··<span·class="text">Records·in·Guards</span> |
| 181 | </h2> | 181 | </h2> |
| 182 | <p>Since·record·expressions·are·expanded·to·tuple·expressions,·creating | 182 | <p>Since·record·expressions·are·expanded·to·tuple·expressions,·creating |
| 183 | records·and·accessing·record·fields·are·allowed·in·guards.·However, | 183 | records·and·accessing·record·fields·are·allowed·in·guards.·However, |
| 184 | all·subexpressions·(for·initializing·fields),·must·be·valid·guard | 184 | all·subexpressions·(for·initializing·fields),·must·be·valid·guard |
| 185 | expressions·as·well.</p><p><em>Examples:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">handle</span><span·class="p"·data-group-id="7 | 185 | expressions·as·well.</p><p><em>Examples:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">handle</span><span·class="p"·data-group-id="1790200762-1">(</span><span·class="n">Msg</span><span·class="p">,</span><span·class="w">·</span><span·class="n">State</span><span·class="p"·data-group-id="1790200762-1">)</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><spa[·...·truncated·by·diffoscope;·len:·442,·SHA:·e1138a99828cf846a7f8b410a31b97aa1f9845169b934700790922d151e1f3dd·...·]-2">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 186 | ····</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> | 186 | ····</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> |
| 187 | </span><span·class="nf">handle</span><span·class="p"·data-group-id="7 | 187 | </span><span·class="nf">handle</span><span·class="p"·data-group-id="1790200762-3">(</span><span·class="n">Msg</span><span·class="p">,</span><span·class="w">·</span><span·class="n">State</span><span·class="p"·data-group-id="1790200762-3">)</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><span·class="n">State</span><span·class="o">#</span><span·class="ss">state</span><span·class="p">.</span><span·class="ss">running</span><span·class="w">·</span><span·class="o">=:=</span><span·class="w">·</span><span·class="ss">true</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 188 | ····</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span></code></pre><p>There·is·also·a·type·test·BIF·<a·href="../../erts-16.0/doc/html/erlang.html#is_record/2"><code·class="inline">is_record(Term,·RecordTag)</code></a>.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">is_person</span><span·class="p"·data-group-id=" | 188 | ····</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span></code></pre><p>There·is·also·a·type·test·BIF·<a·href="../../erts-16.0/doc/html/erlang.html#is_record/2"><code·class="inline">is_record(Term,·RecordTag)</code></a>.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">is_person</span><span·class="p"·data-group-id="2904438554-1">(</span><span·class="n">P</span><span·class="p"·data-group-id="2904438554-1">)</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><span·class="nf">is_record</span><span·class="p"·data-group-id="2904438554-2">(</s[·...·truncated·by·diffoscope;·len:·147,·SHA:·f3ca42c0699a93b7bde16e9fb9b367a172d30de8319654f0c0a6b37c2f738e42·...·]-2">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 189 | ····</span><span·class="ss">true</span><span·class="p">;</span><span·class="w"> | 189 | ····</span><span·class="ss">true</span><span·class="p">;</span><span·class="w"> |
| 190 | </span><span·class="nf">is_person</span><span·class="p"·data-group-id=" | 190 | </span><span·class="nf">is_person</span><span·class="p"·data-group-id="2904438554-3">(</span><span·class="p">_</span><span·class="n">P</span><span·class="p"·data-group-id="2904438554-3">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 191 | ····</span><span·class="ss">false</span><span·class="p">.</span></code></pre><h2·id="records-in-patterns"·class="section-heading"> | 191 | ····</span><span·class="ss">false</span><span·class="p">.</span></code></pre><h2·id="records-in-patterns"·class="section-heading"> |
| 192 | ··<a·href="#records-in-patterns"·class="hover-link"> | 192 | ··<a·href="#records-in-patterns"·class="hover-link"> |
| 193 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 193 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 194 | ··</a> | 194 | ··</a> |
| 195 | ··<span·class="text">Records·in·Patterns</span> | 195 | ··<span·class="text">Records·in·Patterns</span> |
| 196 | </h2> | 196 | </h2> |
| 197 | <p>A·pattern·that·matches·a·certain·record·is·created·in·the·same·way·as·a·record | 197 | <p>A·pattern·that·matches·a·certain·record·is·created·in·the·same·way·as·a·record |
| 198 | is·created:</p><pre><code·class="text">#Name{Field1=Expr1,·...,·FieldK=ExprK}</code></pre><p>In·this·case,·one·or·more·of·<code·class="inline">Expr1</code>·...·<code·class="inline">ExprK</code>·can·be·unbound·variables.</p><h2·id="nested-records"·class="section-heading"> | 198 | is·created:</p><pre><code·class="text">#Name{Field1=Expr1,·...,·FieldK=ExprK}</code></pre><p>In·this·case,·one·or·more·of·<code·class="inline">Expr1</code>·...·<code·class="inline">ExprK</code>·can·be·unbound·variables.</p><h2·id="nested-records"·class="section-heading"> |
| 199 | ··<a·href="#nested-records"·class="hover-link"> | 199 | ··<a·href="#nested-records"·class="hover-link"> |
| 200 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 200 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 201 | ··</a> | 201 | ··</a> |
| 202 | ··<span·class="text">Nested·Records</span> | 202 | ··<span·class="text">Nested·Records</span> |
| 203 | </h2> | 203 | </h2> |
| 204 | <p>Assume·the·following·record·definitions:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id="7930951413-1">(</span><span·class="ss">nrec0</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="7930951413-2">{</span><span·class="ss">name</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"nested0"</span><span·class="p"·data-group-id="7930951413-2">}</span><span·class="p"·data-group-id="7930951413-1">)</span><span·class="p">.</span><span·class="w"> | ||
| 205 | < | 204 | <p>Assume·the·following·record·definitions:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id="8287549896-1">(</span><span·class="ss">nrec0</span><span·class="p">,</span><s[·...·truncated·by·diffoscope;·len:·313,·SHA:·86602e1b4d3b3a89847b508d8eabfb34dcabc850217c09a0a6c2910c0b6915fc·...·]">)</span><span·class="p">.</span><span·class="w"> |
| 205 | </span><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id="8287549896-3">(</span><span·class="ss">nrec1</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8287549896-4">{</span><span·class="ss">name</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"nested1"</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">nrec0</span><span·class="o">=</span><span·class="o">#</span><span·class="ss">nrec0</span><span·class="p"·data-group-id="8287549896-5">{</span><span·class="p"·data-group-id="8287549896-5">}</span><span·class="p"·data-group-id="8287549896-4">}</span><span·class="p"·data-group-id="8287549896-3">)</span><span·class="p">.</span><span·class="w"> | ||
| 206 | </span><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id=" | 206 | </span><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id="8287549896-6">(</span><span·class="ss">nrec2</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8287549896-7">{</span><span·class="ss">name</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><spa[·...·truncated·by·diffoscope;·len:·392,·SHA:·054afa38c457aaf1b6965995f3d36f39cef0bb12b93adb2663cc7945cc174fe5·...·]-6">)</span><span·class="p">.</span><span·class="w"> |
| 207 | </span><span·class="n">N2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">nrec2</span><span·class="p"·data-group-id=" | 207 | </span><span·class="n">N2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">nrec2</span><span·class="p"·data-group-id="8287549896-9">{</span><span·class="p"·data-group-id="8287549896-9">}</span><span·class="p">,</span></code></pre><p>Accessing·or·updating·nested·records·can·be·written·without·parentheses:</p><pre><code·class="text">"nested0"·=·N2#nrec2.nrec1#nrec1.nrec0#nrec0.name, |
| 208 | ····N0n·=·N2#nrec2.nrec1#nrec1.nrec0#nrec0{name·=·"nested0a"},</code></pre><p>which·is·equivalent·to:</p><pre><code·class="text">"nested0"·=·((N2#nrec2.nrec1)#nrec1.nrec0)#nrec0.name, | 208 | ····N0n·=·N2#nrec2.nrec1#nrec1.nrec0#nrec0{name·=·"nested0a"},</code></pre><p>which·is·equivalent·to:</p><pre><code·class="text">"nested0"·=·((N2#nrec2.nrec1)#nrec1.nrec0)#nrec0.name, |
| 209 | N0n·=·((N2#nrec2.nrec1)#nrec1.nrec0)#nrec0{name·=·"nested0a"},</code></pre><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Change</h4><p>Before·Erlang/OTP·R14,·parentheses·were·necessary·when·accessing·or·updating | 209 | N0n·=·((N2#nrec2.nrec1)#nrec1.nrec0)#nrec0{name·=·"nested0a"},</code></pre><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Change</h4><p>Before·Erlang/OTP·R14,·parentheses·were·necessary·when·accessing·or·updating |
| 210 | nested·records.</p></section><h2·id="internal-representation-of-records"·class="section-heading"> | 210 | nested·records.</p></section><h2·id="internal-representation-of-records"·class="section-heading"> |
| 211 | ··<a·href="#internal-representation-of-records"·class="hover-link"> | 211 | ··<a·href="#internal-representation-of-records"·class="hover-link"> |
| 212 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 212 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 213 | ··</a> | 213 | ··</a> |
| 214 | ··<span·class="text">Internal·Representation·of·Records</span> | 214 | ··<span·class="text">Internal·Representation·of·Records</span> |
| 215 | </h2> | 215 | </h2> |
| 216 | <p>Record·expressions·are·translated·to·tuple·expressions·during·compilation.·A | 216 | <p>Record·expressions·are·translated·to·tuple·expressions·during·compilation.·A |
| 217 | record·defined·as:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id="5540562915-1">(</span><span·class="n">Name</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="5540562915-2">{</span><span·class="n">Field1</span><span·class="p">,</span><span·class="w">·</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p">,</span><span·class="w">·</span><span·class="n">FieldN</span><span·class="p"·data-group-id="5540562915-2">}</span><span·class="p"·data-group-id="5540562915-1">)</span><span·class="p">.</span></code></pre><p>is·internally·represented·by·the·tuple:</p><pre><code·class="text">{Name,·Value1,·...,·ValueN}</code></pre><p>Here·each·<code·class="inline">ValueI</code>·is·the·default·value·for·<code·class="inline">FieldI</code>.</p><p>To·each·module·using·records,·a·pseudo·function·is·added·during·compilation·to | ||
| 218 | obtain·information·about·records:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">record_info</span><span·class="p"·data-group-id="5474400967-1">(</span><span·class="ss">fields</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Record</span><span·class="p"·data-group-id="5474400967-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="p"·data-group-id="5474400967-2">[</span><span·class="n">Field</span><span·class="p"·data-group-id="5474400967-2">]</span><span·class="w"> | ||
| 219 | 217 | record·defined·as:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id="0974126781-1">(</span><span·class="n">Name</span><span·class="p">,</span><span·class="w">·</span><spa[·...·truncated·by·diffoscope;·len:·721,·SHA:·5179cb915f87057bb03e48db4d68124188fb60c457efedf1a88c5f110ecd3cf3·...·] | |
| 218 | obtain·information·about·records:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">record_info</span><span·class="p"·data-group-id="3994968225-1">(</span><span·class="ss">fields</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Record</span><span·class="p"·data-group-id="3994968225-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="p"·data-group-id="3994968225-2">[</span><span·class="n">Field</span><span·class="p"·data-group-id="3994968225-2">]</span><span·class="w"> | ||
| 219 | </span><span·class="nf">record_info</span><span·class="p"·data-group-id="3994968225-3">(</span><span·class="nb">size</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Record</span><span·class="p"·data-group-id="3994968225-3">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">Size</span></code></pre><p><code·class="inline">Size</code>·is·the·size·of·the·tuple·representation,·that·is,·one·more·than·the | ||
| 220 | number·of·fields.</p> | 220 | number·of·fields.</p> |
| 221 | </div> | 221 | </div> |
| 222 | <div·class="bottom-actions"·id="bottom-actions"> | 222 | <div·class="bottom-actions"·id="bottom-actions"> |
| 223 | ··<div·class="bottom-actions-item"> | 223 | ··<div·class="bottom-actions-item"> |
| 224 | ······<a·href="macros.html"·class="bottom-actions-button"·rel="prev"> | 224 | ······<a·href="macros.html"·class="bottom-actions-button"·rel="prev"> |
| Offset 266, 15 lines modified | Offset 266, 15 lines modified | ||
| 266 | ······<p·class="built-using"> | 266 | ······<p·class="built-using"> |
| 267 | ········Built·using | 267 | ········Built·using |
| 268 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 268 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 269 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 269 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 270 | ······</p> | 270 | ······</p> |
| 271 | <p>Copyright·©·1996-202 | 271 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 272 | ····</footer> | 272 | ····</footer> |
| 273 | ··</div> | 273 | ··</div> |
| 274 | </main> | 274 | </main> |
| 275 | </div> | 275 | </div> |
| 276 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 276 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 277 | ··<script> | 277 | ··<script> |
| 278 | ··let·initialized·=·false; | 278 | ··let·initialized·=·false; |
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| 209 | ······<p·class="built-using"> | 209 | ······<p·class="built-using"> |
| 210 | ········Built·using | 210 | ········Built·using |
| 211 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 211 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 212 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 212 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 213 | ······</p> | 213 | ······</p> |
| 214 | <p>Copyright·©·1996-202 | 214 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 215 | ····</footer> | 215 | ····</footer> |
| 216 | ··</div> | 216 | ··</div> |
| 217 | </main> | 217 | </main> |
| 218 | </div> | 218 | </div> |
| 219 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 219 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 220 | ··<script> | 220 | ··<script> |
| 221 | ··let·initialized·=·false; | 221 | ··let·initialized·=·false; |
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| 223 | ··<span·class="text">update</span> | 223 | ··<span·class="text">update</span> |
| 224 | </h3> | 224 | </h3> |
| 225 | <p>If·a·more·complex·change·has·been·made,·for·example,·a·change·to·the·format·of | 225 | <p>If·a·more·complex·change·has·been·made,·for·example,·a·change·to·the·format·of |
| 226 | the·internal·state·of·a·<a·href="../../lib/stdlib-7.0/doc/html/gen_server.html"><code·class="inline">gen_server</code></a>,·simple·code·replacement·is·not·sufficient. | 226 | the·internal·state·of·a·<a·href="../../lib/stdlib-7.0/doc/html/gen_server.html"><code·class="inline">gen_server</code></a>,·simple·code·replacement·is·not·sufficient. |
| 227 | Instead,·it·is·necessary·to:</p><ul><li>Suspend·the·processes·using·the·module·(to·avoid·that·they·try·to·handle·any | 227 | Instead,·it·is·necessary·to:</p><ul><li>Suspend·the·processes·using·the·module·(to·avoid·that·they·try·to·handle·any |
| 228 | requests·before·the·code·replacement·is·completed).</li><li>Ask·them·to·transform·the·internal·state·format·and·switch·to·the·new·version | 228 | requests·before·the·code·replacement·is·completed).</li><li>Ask·them·to·transform·the·internal·state·format·and·switch·to·the·new·version |
| 229 | of·the·module.</li><li>Remove·the·old·version.</li><li>Resume·the·processes.</li></ul><p>This·is·called·<em>synchronized·code·replacement</em>·and·for·this·the·following | 229 | of·the·module.</li><li>Remove·the·old·version.</li><li>Resume·the·processes.</li></ul><p>This·is·called·<em>synchronized·code·replacement</em>·and·for·this·the·following |
| 230 | instructions·are·used:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="6053266452-1">{</span><span·class="ss">update</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Module</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6053266452-2">{</span><span·class="ss">advanced</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Extra</span><span·class="p"·data-group-id="6053266452-2">}</span><span·class="p"·data-group-id="6053266452-1">}</span><span·class="w"> | ||
| 231 | 230 | instructions·are·used:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="5107191690-1">{</span><span·class="ss">update</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Module</span><span·class="p">,</spa[·...·truncated·by·diffoscope;·len:·309,·SHA:·2336106a5afdcb4548ea8ff41ff86e5613d5fbe2fd43da6adada43978b61974e·...·] | |
| 231 | </span><span·class="p"·data-group-id="5107191690-3">{</span><span·class="ss">update</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Module</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">supervisor</span><span·class="p"·data-group-id="5107191690-3">}</span></code></pre><p><code·class="inline">update</code>·with·argument·<code·class="inline">{advanced,Extra}</code>·is·used·when·changing·the·internal | ||
| 232 | state·of·a·behaviour·as·described·above.·It·causes·behaviour·processes·to·call | 232 | state·of·a·behaviour·as·described·above.·It·causes·behaviour·processes·to·call |
| 233 | the·callback·function·<code·class="inline">code_change/3</code>,·passing·the·term·<code·class="inline">Extra</code>·and·some·other | 233 | the·callback·function·<code·class="inline">code_change/3</code>,·passing·the·term·<code·class="inline">Extra</code>·and·some·other |
| 234 | information·as·arguments.·See·the·manual·pages·for·the·respective·behaviours·and | 234 | information·as·arguments.·See·the·manual·pages·for·the·respective·behaviours·and |
| 235 | <a·href="appup_cookbook.html#int_state">Appup·Cookbook</a>.</p><p><code·class="inline">update</code>·with·argument·<code·class="inline">supervisor</code>·is·used·when·changing·the·start | 235 | <a·href="appup_cookbook.html#int_state">Appup·Cookbook</a>.</p><p><code·class="inline">update</code>·with·argument·<code·class="inline">supervisor</code>·is·used·when·changing·the·start |
| 236 | specification·of·a·supervisor.·See·<a·href="appup_cookbook.html#sup">Appup·Cookbook</a>.</p><p>When·a·module·is·to·be·updated,·the·release·handler·finds·which·processes·that | 236 | specification·of·a·supervisor.·See·<a·href="appup_cookbook.html#sup">Appup·Cookbook</a>.</p><p>When·a·module·is·to·be·updated,·the·release·handler·finds·which·processes·that |
| 237 | are·<em>using</em>·the·module·by·traversing·the·supervision·tree·of·each·running | 237 | are·<em>using</em>·the·module·by·traversing·the·supervision·tree·of·each·running |
| 238 | application·and·checking·all·the·child·specifications:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 238 | application·and·checking·all·the·child·specifications:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="3071654600-1">{</span><span·class="n">Id</span><span·class="p">,</span><span·class="w">·</span><span·class="n">StartFunc</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Restart</span><span·class="p">,</span><span·class="w">·</span><sp[·...·truncated·by·diffoscope;·len:·222,·SHA:·4d10cd5a4e120973165834956347fd5bc363869adb42c839268c2f89f981336e·...·]-1">}</span></code></pre><p>A·process·uses·a·module·if·the·name·is·listed·in·<code·class="inline">Modules</code>·in·the·child |
| 239 | specification·for·the·process.</p><p>If·<code·class="inline">Modules=dynamic</code>,·which·is·the·case·for·event·managers,·the·event·manager | 239 | specification·for·the·process.</p><p>If·<code·class="inline">Modules=dynamic</code>,·which·is·the·case·for·event·managers,·the·event·manager |
| 240 | process·informs·the·release·handler·about·the·list·of·currently·installed·event | 240 | process·informs·the·release·handler·about·the·list·of·currently·installed·event |
| 241 | handlers·(<code·class="inline">gen_event</code>),·and·it·is·checked·if·the·module·name·is·in·this·list | 241 | handlers·(<code·class="inline">gen_event</code>),·and·it·is·checked·if·the·module·name·is·in·this·list |
| 242 | instead.</p><p>The·release·handler·suspends,·asks·for·code·change,·and·resumes·processes·by | 242 | instead.</p><p>The·release·handler·suspends,·asks·for·code·change,·and·resumes·processes·by |
| 243 | calling·the·functions·<code·class="inline">sys:suspend/1,2</code>,·<code·class="inline">sys:change_code/4,5</code>,·and | 243 | calling·the·functions·<code·class="inline">sys:suspend/1,2</code>,·<code·class="inline">sys:change_code/4,5</code>,·and |
| 244 | <code·class="inline">sys:resume/1,2</code>,·respectively.</p><h3·id="add_module-and-delete_module"·class="section-heading"> | 244 | <code·class="inline">sys:resume/1,2</code>,·respectively.</p><h3·id="add_module-and-delete_module"·class="section-heading"> |
| 245 | ··<a·href="#add_module-and-delete_module"·class="hover-link"> | 245 | ··<a·href="#add_module-and-delete_module"·class="hover-link"> |
| 246 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 246 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 247 | ··</a> | 247 | ··</a> |
| 248 | ··<span·class="text">add_module·and·delete_module</span> | 248 | ··<span·class="text">add_module·and·delete_module</span> |
| 249 | </h3> | 249 | </h3> |
| 250 | <p>If·a·new·module·is·introduced,·the·following·instruction·is·used:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 250 | <p>If·a·new·module·is·introduced,·the·following·instruction·is·used:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="0781969486-1">{</span><span·class="ss">add_module</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Module</span><span·class="p"·data-group-id="0781969486-1">}</span></code></pre><p>This·instruction·loads·module·<code·class="inline">Module</code>.·When·running·Erlang·in |
| 251 | embedded·mode·it·is·necessary·to·use·this·this·instruction.·It·is·not | 251 | embedded·mode·it·is·necessary·to·use·this·this·instruction.·It·is·not |
| 252 | strictly·required·when·running·Erlang·in·interactive·mode,·since·the | 252 | strictly·required·when·running·Erlang·in·interactive·mode,·since·the |
| 253 | code·server·automatically·searches·for·and·loads·unloaded·modules.</p><p>The·opposite·of·<code·class="inline">add_module</code>·is·<code·class="inline">delete_module</code>,·which·unloads·a·module:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 253 | code·server·automatically·searches·for·and·loads·unloaded·modules.</p><p>The·opposite·of·<code·class="inline">add_module</code>·is·<code·class="inline">delete_module</code>,·which·unloads·a·module:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="2918899693-1">{</span><span·class="nb">delete_module</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Module</span><span·class="p"·data-group-id="2918899693-1">}</span></code></pre><p>Any·process,·in·any·application,·with·<code·class="inline">Module</code>·as·residence·module,·is |
| 254 | killed·when·the·instruction·is·evaluated.·Therefore,·the·user·must | 254 | killed·when·the·instruction·is·evaluated.·Therefore,·the·user·must |
| 255 | ensure·that·all·such·processes·are·terminated·before·deleting·module | 255 | ensure·that·all·such·processes·are·terminated·before·deleting·module |
| 256 | <code·class="inline">Module</code>·to·avoid·a·situation·with·failing·supervisor·restarts.</p><h3·id="application-instructions"·class="section-heading"> | 256 | <code·class="inline">Module</code>·to·avoid·a·situation·with·failing·supervisor·restarts.</p><h3·id="application-instructions"·class="section-heading"> |
| 257 | ··<a·href="#application-instructions"·class="hover-link"> | 257 | ··<a·href="#application-instructions"·class="hover-link"> |
| 258 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 258 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 259 | ··</a> | 259 | ··</a> |
| 260 | ··<span·class="text">Application·Instructions</span> | 260 | ··<span·class="text">Application·Instructions</span> |
| Offset 341, 60 lines modified | Offset 341, 60 lines modified | ||
| 341 | <code·class="inline">.app</code>·file.</li><li>Each·<code·class="inline">UpFromVsn</code>·is·a·previous·version·of·the·application·to·upgrade·from.</li><li>Each·<code·class="inline">DownToVsn</code>·is·a·previous·version·of·the·application·to·downgrade·to.</li><li>Each·<code·class="inline">Instructions</code>·is·a·list·of·release·handling·instructions.</li></ul><p><code·class="inline">UpFromVsn</code>·and·<code·class="inline">DownToVsn</code>·can·also·be·specified·as·regular·expressions.·For | 341 | <code·class="inline">.app</code>·file.</li><li>Each·<code·class="inline">UpFromVsn</code>·is·a·previous·version·of·the·application·to·upgrade·from.</li><li>Each·<code·class="inline">DownToVsn</code>·is·a·previous·version·of·the·application·to·downgrade·to.</li><li>Each·<code·class="inline">Instructions</code>·is·a·list·of·release·handling·instructions.</li></ul><p><code·class="inline">UpFromVsn</code>·and·<code·class="inline">DownToVsn</code>·can·also·be·specified·as·regular·expressions.·For |
| 342 | more·information·about·the·syntax·and·contents·of·the·<code·class="inline">.appup</code>·file,·see | 342 | more·information·about·the·syntax·and·contents·of·the·<code·class="inline">.appup</code>·file,·see |
| 343 | <a·href="../../lib/sasl-4.3/doc/html/appup.html"><code·class="inline">appup</code></a>·in·SASL.</p><p><a·href="appup_cookbook.html">Appup·Cookbook</a>·includes·examples·of·<code·class="inline">.appup</code>·files·for | 343 | <a·href="../../lib/sasl-4.3/doc/html/appup.html"><code·class="inline">appup</code></a>·in·SASL.</p><p><a·href="appup_cookbook.html">Appup·Cookbook</a>·includes·examples·of·<code·class="inline">.appup</code>·files·for |
| 344 | typical·upgrade/downgrade·cases.</p><p><em>Example:</em>·Consider·the·release·<code·class="inline">ch_rel-1</code>·from | 344 | typical·upgrade/downgrade·cases.</p><p><em>Example:</em>·Consider·the·release·<code·class="inline">ch_rel-1</code>·from |
| 345 | <a·href="release_structure.html#ch_rel">Releases</a>.·Assume·you·want·to·add·a·function | 345 | <a·href="release_structure.html#ch_rel">Releases</a>.·Assume·you·want·to·add·a·function |
| 346 | <code·class="inline">available/0</code>·to·server·<code·class="inline">ch3</code>,·which·returns·the·number·of·available·channels | 346 | <code·class="inline">available/0</code>·to·server·<code·class="inline">ch3</code>,·which·returns·the·number·of·available·channels |
| 347 | (when·trying·out·the·example,·make·the·change·in·a·copy·of·the·original | 347 | (when·trying·out·the·example,·make·the·change·in·a·copy·of·the·original |
| 348 | directory,·to·ensure·that·the·first·version·is·still·available):</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="7 | 348 | directory,·to·ensure·that·the·first·version·is·still·available):</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="7939590995-1">(</span><span·class="ss">ch3</span><span·class="p"·data-group-id="7939590995-1">)</span><span·class="p">.</span><span·class="w"> |
| 349 | </span><span·class="p">-</span><span·class="na">behaviour</span><span·class="p"·data-group-id="7 | 349 | </span><span·class="p">-</span><span·class="na">behaviour</span><span·class="p"·data-group-id="7939590995-2">(</span><span·class="ss">gen_server</span><span·class="p"·data-group-id="7939590995-2">)</span><span·class="p">.</span><span·class="w"> |
| 350 | </span><span·class="w"> | 350 | </span><span·class="w"> |
| 351 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="7 | 351 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="7939590995-3">(</span><span·class="p"·data-group-id="7939590995-4">[</span><span·class="ss">start_link</span><span·class="p">/</span><span·class="mi">0</span><span·class="p"·data-group-id="7939590995-4">]</span><span·class="p"·data-group-id="7939590995-3">)</span><span·class="p">.</span><span·class="w"> |
| 352 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="7 | 352 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="7939590995-5">(</span><span·class="p"·data-group-id="7939590995-6">[</span><span·class="ss">alloc</span><span·class="p">/</span><span·class="mi">0</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">free</span><span·class="p">/</span><spa[·...·truncated·by·diffoscope;·len:·115,·SHA:·2675db51fa50c24799effe542f66894a7c0c7329dae1b22b326b254a0237eddc·...·]-5">)</span><span·class="p">.</span><span·class="w"> |
| 353 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="7 | 353 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="7939590995-7">(</span><span·class="p"·data-group-id="7939590995-8">[</span><span·class="ss">available</span><span·class="p">/</span><span·class="mi">0</span><span·class="p"·data-group-id="7939590995-8">]</span><span·class="p"·data-group-id="7939590995-7">)</span><span·class="p">.</span><span·class="w"> |
| 354 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="7 | 354 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="7939590995-9">(</span><span·class="p"·data-group-id="7939590995-10">[</span><span·class="ss">init</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">handle_call</span><span·class="p">/</sp[·...·truncated·by·diffoscope;·len:·255,·SHA:·43a0558d8943873e521acbaa25346e7c8e73995e2e124b6872df91da0a864caa·...·]-9">)</span><span·class="p">.</span><span·class="w"> |
| 355 | </span><span·class="nf">start_link</span><span·class="p"·data-group-id="7 | 355 | </span><span·class="nf">start_link</span><span·class="p"·data-group-id="7939590995-11">(</span><span·class="p"·data-group-id="7939590995-11">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 356 | ····</span><span·class="nc">gen_server</span><span·class="p">:</span><span·class="nf">start_link</span><span·class="p"·data-group-id="7 | 356 | ····</span><span·class="nc">gen_server</span><span·class="p">:</span><span·class="nf">start_link</span><span·class="p"·data-group-id="7939590995-12">(</span><span·class="p"·data-group-id="7939590995-13">{</span><span·class="ss">local</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">ch3</span><span·class="p"·data-group-id="7939590995-13">}</span><span·class="p">,</spa[·...·truncated·by·diffoscope;·len:·406,·SHA:·0dd8b6ab0a3242e0a60ad00d2914729edcacc92af9dc40954afb0d8d98ffe1a4·...·]-12">)</span><span·class="p">.</span><span·class="w"> |
| 357 | </span><span·class="nf">alloc</span><span·class="p"·data-group-id="7 | 357 | </span><span·class="nf">alloc</span><span·class="p"·data-group-id="7939590995-16">(</span><span·class="p"·data-group-id="7939590995-16">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 358 | ····</span><span·class="nc">gen_server</span><span·class="p">:</span><span·class="nf">call</span><span·class="p"·data-group-id="7 | 358 | ····</span><span·class="nc">gen_server</span><span·class="p">:</span><span·class="nf">call</span><span·class="p"·data-group-id="7939590995-17">(</span><span·class="ss">ch3</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">alloc</span><span·class="p"·data-group-id="7939590995-17">)</span><span·class="p">.</span><span·class="w"> |
| 359 | </span><span·class="nf">free</span><span·class="p"·data-group-id="7 | 359 | </span><span·class="nf">free</span><span·class="p"·data-group-id="7939590995-18">(</span><span·class="n">Ch</span><span·class="p"·data-group-id="7939590995-18">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 360 | ····</span><span·class="nc">gen_server</span><span·class="p">:</span><span·class="nf">cast</span><span·class="p"·data-group-id="7 | 360 | ····</span><span·class="nc">gen_server</span><span·class="p">:</span><span·class="nf">cast</span><span·class="p"·data-group-id="7939590995-19">(</span><span·class="ss">ch3</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="7939590995-20">{</span><span·class="ss">free</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Ch</span><spa[·...·truncated·by·diffoscope;·len:·91,·SHA:·76b20b2d6ae7606b54fe62d085dfdd9879a1a55c015adcf26c12875586db3971·...·]-19">)</span><span·class="p">.</span><span·class="w"> |
| 361 | </span><span·class="nf">available</span><span·class="p"·data-group-id="7 | 361 | </span><span·class="nf">available</span><span·class="p"·data-group-id="7939590995-21">(</span><span·class="p"·data-group-id="7939590995-21">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 362 | ····</span><span·class="nc">gen_server</span><span·class="p">:</span><span·class="nf">call</span><span·class="p"·data-group-id="7 | 362 | ····</span><span·class="nc">gen_server</span><span·class="p">:</span><span·class="nf">call</span><span·class="p"·data-group-id="7939590995-22">(</span><span·class="ss">ch3</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">available</span><span·class="p"·data-group-id="7939590995-22">)</span><span·class="p">.</span><span·class="w"> |
| 363 | </span><span·class="nf">init</span><span·class="p"·data-group-id="7 | 363 | </span><span·class="nf">init</span><span·class="p"·data-group-id="7939590995-23">(</span><span·class="p">_</span><span·class="n">Args</span><span·class="p"·data-group-id="7939590995-23">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 364 | ····</span><span·class="p"·data-group-id="7 | 364 | ····</span><span·class="p"·data-group-id="7939590995-24">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">channels</span><span·class="p"·data-group-id="7939590995-25">(</span><span·class="p"·data-group-id="7939590995-25">)</span><span·class="p"·data[·...·truncated·by·diffoscope;·len:·21,·SHA:·5b55b551f1903599d9d7227c618bb1d8b21b1359a95708693b556791e9c18d28·...·]-24">}</span><span·class="p">.</span><span·class="w"> |
| 365 | </span><span·class="nf">handle_call</span><span·class="p"·data-group-id="7 | 365 | </span><span·class="nf">handle_call</span><span·class="p"·data-group-id="7939590995-26">(</span><span·class="ss">alloc</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="n">From</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Chs</span><span·class="p"·data-group-id="7[·...·truncated·by·diffoscope;·len:·9,·SHA:·9e27ef00e0e58fd4231fb550f3866f5e6c6307d2260827636b456c2b02ab04a8·...·]-26">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 366 | ····</span><span·class="p"·data-group-id="7 | 366 | ····</span><span·class="p"·data-group-id="7939590995-27">{</span><span·class="n">Ch</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Chs2</span><span·class="p"·data-group-id="7939590995-27">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·cl[·...·truncated·by·diffoscope;·len:·142,·SHA:·95f7c89061671b930a7536b2c41664eec8034611a0b57e00c5f434129388cb8f·...·]-28">)</span><span·class="p">,</span><span·class="w"> |
| 367 | ····</span><span·class="p"·data-group-id="7 | 367 | ····</span><span·class="p"·data-group-id="7939590995-29">{</span><span·class="ss">reply</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Ch</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Chs2</span><span·class="p"·data-group-id="7939590995-29">}</span><span·class="p">;</span><span·class="w"> |
| 368 | </span><span·class="nf">handle_call</span><span·class="p"·data-group-id="7 | 368 | </span><span·class="nf">handle_call</span><span·class="p"·data-group-id="7939590995-30">(</span><span·class="ss">available</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="n">From</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Chs</span><span·class="p"·data-group-i[·...·truncated·by·diffoscope;·len:·13,·SHA:·561cca36461fb23f346c815df10625f040742cc3e781b1ceb5a7429fd192188d·...·]-30">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 369 | ····</span><span·class="n">N</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">available</span><span·class="p"·data-group-id="7 | 369 | ····</span><span·class="n">N</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">available</span><span·class="p"·data-group-id="7939590995-31">(</span><span·class="n">Chs</span><span·class="p"·data-group-id="7939590995-31">)</span><span·class="p">,</span><span·class="w"> |
| 370 | ····</span><span·class="p"·data-group-id="7 | 370 | ····</span><span·class="p"·data-group-id="7939590995-32">{</span><span·class="ss">reply</span><span·class="p">,</span><span·class="w">·</span><span·class="n">N</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Chs</span><span·class="p"·data-group-id="7939590995-32">}</span><span·class="p">.</span><span·class="w"> |
| 371 | </span><span·class="nf">handle_cast</span><span·class="p"·data-group-id="7 | 371 | </span><span·class="nf">handle_cast</span><span·class="p"·data-group-id="7939590995-33">(</span><span·class="p"·data-group-id="7939590995-34">{</span><span·class="ss">free</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Ch</span><span·class="p"·data-group-id="7939590995-34">}</span><span·class="p">,</span><[·...·truncated·by·diffoscope;·len:·90,·SHA:·a54a0263612c92042d6052620474fa0157b6ddcd90d1608b895005239363bdcb·...·]-33">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 372 | ····</span><span·class="n">Chs2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">free</span><span·class="p"·data-group-id="7 | 372 | ····</span><span·class="n">Chs2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">free</span><span·class="p"·data-group-id="7939590995-35">(</span><span·class="n">Ch</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Chs</span><span·class="p"·data-group-id="7939590995-35">)</span><span·class="p">,</span><span·class="w"> |
| 373 | ····</span><span·class="p"·data-group-id="7 | 373 | ····</span><span·class="p"·data-group-id="7939590995-36">{</span><span·class="ss">noreply</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Chs2</span><span·class="p"·data-group-id="7939590995-36">}</span><span·class="p">.</span></code></pre><p>A·new·version·of·the·<code·class="inline">ch_app.app</code>·file·must·now·be·created,·where·the·version·is |
| 374 | updated:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 374 | updated:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="4725493174-1">{</span><span·class="ss">application</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">ch_app</span><span·class="p">,</span><span·class="w"> |
| 375 | ·</span><span·class="p"·data-group-id=" | 375 | ·</span><span·class="p"·data-group-id="4725493174-2">[</span><span·class="p"·data-group-id="4725493174-3">{</span><span·class="ss">description</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"Channel·allocator"</span><span·class="p"·data-group-id="4725493174-3">}</span><span·class="p">,</span><span·class="w"> |
| 376 | ··</span><span·class="p"·data-group-id=" | 376 | ··</span><span·class="p"·data-group-id="4725493174-4">{</span><span·class="ss">vsn</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"2"</span><span·class="p"·data-group-id="4725493174-4">}</span><span·class="p">,</span><span·class="w"> |
| 377 | ··</span><span·class="p"·data-group-id=" | 377 | ··</span><span·class="p"·data-group-id="4725493174-5">{</span><span·class="ss">modules</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4725493174-6">[</span><span·class="ss">ch_app</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">ch_sup<[·...·truncated·by·diffoscope;·len:·175,·SHA:·2e038510998ffe7f8afc8ac81e5fb4dc42e35f1f05e6eb996566a7cafdfd582f·...·]-5">}</span><span·class="p">,</span><span·class="w"> |
| 378 | ··</span><span·class="p"·data-group-id=" | 378 | ··</span><span·class="p"·data-group-id="4725493174-7">{</span><span·class="ss">registered</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4725493174-8">[</span><span·class="ss">ch3</span><span·class="p"·data-group-id="4725493174-8">]</span><span·class="p"·dat[·...·truncated·by·diffoscope;·len:·22,·SHA:·148351b871ab9d178bc66ef779acc9beadd5dd687444627d92c8a58bd04a5e7b·...·]-7">}</span><span·class="p">,</span><span·class="w"> |
| 379 | ··</span><span·class="p"·data-group-id=" | 379 | ··</span><span·class="p"·data-group-id="4725493174-9">{</span><span·class="ss">applications</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4725493174-10">[</span><span·class="ss">kernel</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">s[·...·truncated·by·diffoscope;·len:·183,·SHA:·46d04d62d4509bf50d640f2d1b9144ea1a67ab88d326139870632c7961490704·...·]-9">}</span><span·class="p">,</span><span·class="w"> |
| 380 | ··</span><span·class="p"·data-group-id=" | 380 | ··</span><span·class="p"·data-group-id="4725493174-11">{</span><span·class="ss">mod</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4725493174-12">{</span><span·class="ss">ch_app</span><span·class="p">,</span><span·class="p"·data-group-id="4725493174-13">[</s[·...·truncated·by·diffoscope;·len:·153,·SHA:·60678ecb29a7f23ac6f7a321a28e59f41fd5de0a3119b9a19026fb8bf25b9b34·...·]-11">}</span><span·class="w"> |
| 381 | ·</span><span·class="p"·data-group-id=" | 381 | ·</span><span·class="p"·data-group-id="4725493174-2">]</span><span·class="p"·data-group-id="4725493174-1">}</span><span·class="p">.</span></code></pre><p>To·upgrade·<code·class="inline">ch_app</code>·from·<code·class="inline">"1"</code>·to·<code·class="inline">"2"</code>·(and·to·downgrade·from·<code·class="inline">"2"</code>·to·<code·class="inline">"1"</code>), |
| 382 | you·only·need·to·load·the·new·(old)·version·of·the·<code·class="inline">ch3</code>·callback·module.·Create | 382 | you·only·need·to·load·the·new·(old)·version·of·the·<code·class="inline">ch3</code>·callback·module.·Create |
| 383 | the·application·upgrade·file·<code·class="inline">ch_app.appup</code>·in·the·<code·class="inline">ebin</code>·directory:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="4 | 383 | the·application·upgrade·file·<code·class="inline">ch_app.appup</code>·in·the·<code·class="inline">ebin</code>·directory:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="4136482235-1">{</span><span·class="s">"2"</span><span·class="p">,</span><span·class="w"> |
| 384 | ·</span><span·class="p"·data-group-id="4 | 384 | ·</span><span·class="p"·data-group-id="4136482235-2">[</span><span·class="p"·data-group-id="4136482235-3">{</span><span·class="s">"1"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4136482235-4">[</span><span·class="p"·data-group-id="4136482235-5">[·...·truncated·by·diffoscope;·len:·318,·SHA:·6fe8951ab6e7cbfa6890c48f9601052558843146a6d15b832c5ff628dc9ad431·...·]-2">]</span><span·class="p">,</span><span·class="w"> |
| 385 | ·</span><span·class="p"·data-group-id="4 | 385 | ·</span><span·class="p"·data-group-id="4136482235-6">[</span><span·class="p"·data-group-id="4136482235-7">{</span><span·class="s">"1"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4136482235-8">[</span><span·class="p"·data-group-id="4136482235-9">[·...·truncated·by·diffoscope;·len:·318,·SHA:·49f50585bc4ed6d91913a96a81e5a0c22518c7b26418a7016a15a3984bbacad6·...·]-6">]</span><span·class="w"> |
| 386 | </span><span·class="p"·data-group-id="4 | 386 | </span><span·class="p"·data-group-id="4136482235-1">}</span><span·class="p">.</span></code></pre><p><a·href=""·id="relup"></a></p><h2·id="release-upgrade-file"·class="section-heading"> |
| 387 | ··<a·href="#release-upgrade-file"·class="hover-link"> | 387 | ··<a·href="#release-upgrade-file"·class="hover-link"> |
| 388 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 388 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 389 | ··</a> | 389 | ··</a> |
| 390 | ··<span·class="text">Release·Upgrade·File</span> | 390 | ··<span·class="text">Release·Upgrade·File</span> |
| 391 | </h2> | 391 | </h2> |
| 392 | <p>To·define·how·to·upgrade/downgrade·between·the·new·version·and·previous·versions | 392 | <p>To·define·how·to·upgrade/downgrade·between·the·new·version·and·previous·versions |
| 393 | of·a·release,·a·<em>release·upgrade·file</em>,·or·in·short·<code·class="inline">.relup</code>·file,·is·to·be | 393 | of·a·release,·a·<em>release·upgrade·file</em>,·or·in·short·<code·class="inline">.relup</code>·file,·is·to·be |
| Offset 405, 22 lines modified | Offset 405, 22 lines modified | ||
| 405 | are·to·be·added·and·deleted,·and·which·applications·that·must·be·upgraded·and/or | 405 | are·to·be·added·and·deleted,·and·which·applications·that·must·be·upgraded·and/or |
| 406 | downgraded.·The·instructions·for·this·are·fetched·from·the·<code·class="inline">.appup</code>·files·and | 406 | downgraded.·The·instructions·for·this·are·fetched·from·the·<code·class="inline">.appup</code>·files·and |
| 407 | transformed·into·a·single·list·of·low-level·instructions·in·the·right·order.</p><p>If·the·<code·class="inline">relup</code>·file·is·relatively·simple,·it·can·be·created·manually.·It·is·only | 407 | transformed·into·a·single·list·of·low-level·instructions·in·the·right·order.</p><p>If·the·<code·class="inline">relup</code>·file·is·relatively·simple,·it·can·be·created·manually.·It·is·only |
| 408 | to·contain·low-level·instructions.</p><p>For·details·about·the·syntax·and·contents·of·the·release·upgrade·file,·see | 408 | to·contain·low-level·instructions.</p><p>For·details·about·the·syntax·and·contents·of·the·release·upgrade·file,·see |
| 409 | <a·href="../../lib/sasl-4.3/doc/html/relup.html"><code·class="inline">relup</code></a>·in·SASL.</p><p><em>Example,·continued·from·the·previous·section:</em>·You·have·a·new·version·"2"·of | 409 | <a·href="../../lib/sasl-4.3/doc/html/relup.html"><code·class="inline">relup</code></a>·in·SASL.</p><p><em>Example,·continued·from·the·previous·section:</em>·You·have·a·new·version·"2"·of |
| 410 | <code·class="inline">ch_app</code>·and·an·<code·class="inline">.appup</code>·file.·A·new·version·of·the·<code·class="inline">.rel</code>·file·is·also·needed. | 410 | <code·class="inline">ch_app</code>·and·an·<code·class="inline">.appup</code>·file.·A·new·version·of·the·<code·class="inline">.rel</code>·file·is·also·needed. |
| 411 | This·time·the·file·is·called·<code·class="inline">ch_rel-2.rel</code>·and·the·release·version·string·is | 411 | This·time·the·file·is·called·<code·class="inline">ch_rel-2.rel</code>·and·the·release·version·string·is |
| 412 | changed·from·"A"·to·"B":</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 412 | changed·from·"A"·to·"B":</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="9937302137-1">{</span><span·class="ss">release</span><span·class="p">,</span><span·class="w"> |
| 413 | ·</span><span·class="p"·data-group-id=" | 413 | ·</span><span·class="p"·data-group-id="9937302137-2">{</span><span·class="s">"ch_rel"</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"B"</span><span·class="p"·data-group-id="9937302137-2">}</span><span·class="p">,</span><span·class="w"> |
| 414 | ·</span><span·class="p"·data-group-id=" | 414 | ·</span><span·class="p"·data-group-id="9937302137-3">{</span><span·class="ss">erts</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"14.2.5"</span><span·class="p"·data-group-id="9937302137-3">}</span><span·class="p">,</span><span·class="w"> |
| 415 | ·</span><span·class="p"·data-group-id=" | 415 | ·</span><span·class="p"·data-group-id="9937302137-4">[</span><span·class="p"·data-group-id="9937302137-5">{</span><span·class="ss">kernel</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"9.2.4"</span><span·class="p"·data-group-id="9937302137-5">}</span><span·class="p">,</span><span·class="w"> |
| 416 | ··</span><span·class="p"·data-group-id=" | 416 | ··</span><span·class="p"·data-group-id="9937302137-6">{</span><span·class="ss">stdlib</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"5.2.3"</span><span·class="p"·data-group-id="9937302137-6">}</span><span·class="p">,</span><span·class="w"> |
| 417 | ··</span><span·class="p"·data-group-id=" | 417 | ··</span><span·class="p"·data-group-id="9937302137-7">{</span><span·class="ss">sasl</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"4.2.1"</span><span·class="p"·data-group-id="9937302137-7">}</span><span·class="p">,</span><span·class="w"> |
| 418 | ··</span><span·class="p"·data-group-id=" | 418 | ··</span><span·class="p"·data-group-id="9937302137-8">{</span><span·class="ss">ch_app</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"2"</span><span·class="p"·data-group-id="9937302137-8">}</span><span·class="p"·data-group-id="9937302137-4">]</span><span·class="w"> |
| 419 | </span><span·class="p"·data-group-id=" | 419 | </span><span·class="p"·data-group-id="9937302137-1">}</span><span·class="p">.</span></code></pre><p>Now·the·<code·class="inline">relup</code>·file·can·be·generated:</p><pre><code·class="text">1>·systools:make_relup("ch_rel-2",·["ch_rel-1"],·["ch_rel-1"]). |
| 420 | ok</code></pre><p>This·generates·a·<code·class="inline">relup</code>·file·with·instructions·for·how·to·upgrade·from·version | 420 | ok</code></pre><p>This·generates·a·<code·class="inline">relup</code>·file·with·instructions·for·how·to·upgrade·from·version |
| 421 | "A"·("ch_rel-1")·to·version·"B"·("ch_rel-2")·and·how·to·downgrade·from·version | 421 | "A"·("ch_rel-1")·to·version·"B"·("ch_rel-2")·and·how·to·downgrade·from·version |
| 422 | "B"·to·version·"A".</p><p>Both·the·old·and·new·versions·of·the·<code·class="inline">.app</code>·and·<code·class="inline">.rel</code>·files·must·be·in·the·code | 422 | "B"·to·version·"A".</p><p>Both·the·old·and·new·versions·of·the·<code·class="inline">.app</code>·and·<code·class="inline">.rel</code>·files·must·be·in·the·code |
| 423 | path,·as·well·as·the·<code·class="inline">.appup</code>·and·(new)·<code·class="inline">.beam</code>·files.·The·code·path·can·be | 423 | path,·as·well·as·the·<code·class="inline">.appup</code>·and·(new)·<code·class="inline">.beam</code>·files.·The·code·path·can·be |
| 424 | extended·by·using·the·option·<code·class="inline">path</code>:</p><pre><code·class="text">1>·systools:make_relup("ch_rel-2",·["ch_rel-1"],·["ch_rel-1"], | 424 | extended·by·using·the·option·<code·class="inline">path</code>:</p><pre><code·class="text">1>·systools:make_relup("ch_rel-2",·["ch_rel-1"],·["ch_rel-1"], |
| 425 | [{path,["../ch_rel-1", | 425 | [{path,["../ch_rel-1", |
| 426 | "../ch_rel-1/lib/ch_app-1/ebin"]}]). | 426 | "../ch_rel-1/lib/ch_app-1/ebin"]}]). |
| Offset 433, 25 lines modified | Offset 433, 25 lines modified | ||
| 433 | <p>When·you·have·made·a·new·version·of·a·release,·a·release·package·can·be·created | 433 | <p>When·you·have·made·a·new·version·of·a·release,·a·release·package·can·be·created |
| 434 | with·this·new·version·and·transferred·to·the·target·environment.</p><p>To·install·the·new·version·of·the·release·in·runtime,·the·<em>release | 434 | with·this·new·version·and·transferred·to·the·target·environment.</p><p>To·install·the·new·version·of·the·release·in·runtime,·the·<em>release |
| 435 | handler</em>·is·used.·This·is·a·process·belonging·to·the·SASL·application, | 435 | handler</em>·is·used.·This·is·a·process·belonging·to·the·SASL·application, |
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| 136 | ··<a·href="#release-resource-file"·class="hover-link"> | 136 | ··<a·href="#release-resource-file"·class="hover-link"> |
| 137 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 137 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 138 | ··</a> | 138 | ··</a> |
| 139 | ··<span·class="text">Release·Resource·File</span> | 139 | ··<span·class="text">Release·Resource·File</span> |
| 140 | </h2> | 140 | </h2> |
| 141 | <p>To·define·a·release,·create·a·<em>release·resource·file</em>,·or·in·short·a·<code·class="inline">.rel</code> | 141 | <p>To·define·a·release,·create·a·<em>release·resource·file</em>,·or·in·short·a·<code·class="inline">.rel</code> |
| 142 | file.·In·the·file,·specify·the·name·and·version·of·the·release,·which·ERTS | 142 | file.·In·the·file,·specify·the·name·and·version·of·the·release,·which·ERTS |
| 143 | version·it·is·based·on,·and·which·applications·it·consists·of:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 143 | version·it·is·based·on,·and·which·applications·it·consists·of:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="8323626256-1">{</span><span·class="ss">release</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8323626256-2">{</span><span·class="n">Name</span><span·class="p">,</span><span·class="n">Vsn</span><span·class="p"·data-grou[·...·truncated·by·diffoscope;·len:·273,·SHA:·550a1097d45528c0ca586ab0955d4667d75f5d7fedee10afbf87b8a8cf21e12b·...·]-3">}</span><span·class="p">,</span><span·class="w"> |
| 144 | ·</span><span·class="p"·data-group-id=" | 144 | ·</span><span·class="p"·data-group-id="8323626256-4">[</span><span·class="p"·data-group-id="8323626256-5">{</span><span·class="n">Application1</span><span·class="p">,</span><span·class="w">·</span><span·class="n">AppVsn1</span><span·class="p"·data-group-id="8323626256-5">}</span><span·class="p">,</span><span·class="w"> |
| 145 | ···</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> | 145 | ···</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> |
| 146 | ··</span><span·class="p"·data-group-id=" | 146 | ··</span><span·class="p"·data-group-id="8323626256-6">{</span><span·class="n">ApplicationN</span><span·class="p">,</span><span·class="w">·</span><span·class="n">AppVsnN</span><span·class="p"·data-group-id="8323626256-6">}</span><span·class="p"·data-group-id="8323626256-4">]</span><span·class="p"[·...·truncated·by·diffoscope;·len:·26,·SHA:·ce0235caca17223e453ec4d187c47603d89bae0c7674a890c87f2fc0943e6f13·...·]-1">}</span><span·class="p">.</span></code></pre><p><code·class="inline">Name</code>,·<code·class="inline">Vsn</code>,·<code·class="inline">EVsn</code>,·and·<code·class="inline">AppVsn</code>·are·strings.</p><p>The·file·must·be·named·<code·class="inline">Rel.rel</code>,·where·<code·class="inline">Rel</code>·is·a·unique·name.</p><p>Each·<code·class="inline">Application</code>·(atom)·and·<code·class="inline">AppVsn</code>·is·the·name·and·version·of·an·application |
| 147 | included·in·the·release.·The·minimal·release·based·on·Erlang/OTP·consists·of·the | 147 | included·in·the·release.·The·minimal·release·based·on·Erlang/OTP·consists·of·the |
| 148 | Kernel·and·STDLIB·applications,·so·these·applications·must·be·included·in·the | 148 | Kernel·and·STDLIB·applications,·so·these·applications·must·be·included·in·the |
| 149 | list.</p><p>If·the·release·is·to·be·upgraded,·it·must·also·include·the·SASL·application.</p><p><a·href=""·id="ch_rel"></a></p><p>Here·is·an·example·showing·the·<code·class="inline">.app</code>·file·for·a·release·of·<code·class="inline">ch_app</code>·from | 149 | list.</p><p>If·the·release·is·to·be·upgraded,·it·must·also·include·the·SASL·application.</p><p><a·href=""·id="ch_rel"></a></p><p>Here·is·an·example·showing·the·<code·class="inline">.app</code>·file·for·a·release·of·<code·class="inline">ch_app</code>·from |
| 150 | the·<a·href="applications.html#ch_app">Applications</a>·section:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 150 | the·<a·href="applications.html#ch_app">Applications</a>·section:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="3989619405-1">{</span><span·class="ss">application</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">ch_app</span><span·class="p">,</span><span·class="w"> |
| 151 | ·</span><span·class="p"·data-group-id=" | 151 | ·</span><span·class="p"·data-group-id="3989619405-2">[</span><span·class="p"·data-group-id="3989619405-3">{</span><span·class="ss">description</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"Channel·allocator"</span><span·class="p"·data-group-id="3989619405-3">}</span><span·class="p">,</span><span·class="w"> |
| 152 | ··</span><span·class="p"·data-group-id=" | 152 | ··</span><span·class="p"·data-group-id="3989619405-4">{</span><span·class="ss">vsn</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"1"</span><span·class="p"·data-group-id="3989619405-4">}</span><span·class="p">,</span><span·class="w"> |
| 153 | ··</span><span·class="p"·data-group-id=" | 153 | ··</span><span·class="p"·data-group-id="3989619405-5">{</span><span·class="ss">modules</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3989619405-6">[</span><span·class="ss">ch_app</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">ch_sup<[·...·truncated·by·diffoscope;·len:·175,·SHA:·59cefc748abe57281d62bbf30a7bb85aff3fd13f07d73521e4362a9ffe9a5511·...·]-5">}</span><span·class="p">,</span><span·class="w"> |
| 154 | ··</span><span·class="p"·data-group-id=" | 154 | ··</span><span·class="p"·data-group-id="3989619405-7">{</span><span·class="ss">registered</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3989619405-8">[</span><span·class="ss">ch3</span><span·class="p"·data-group-id="3989619405-8">]</span><span·class="p"·dat[·...·truncated·by·diffoscope;·len:·22,·SHA:·fd10918fb35729fd30124f724769c47b80b3b6088d51ad7e9dd3cdeb8e630fdb·...·]-7">}</span><span·class="p">,</span><span·class="w"> |
| 155 | ··</span><span·class="p"·data-group-id=" | 155 | ··</span><span·class="p"·data-group-id="3989619405-9">{</span><span·class="ss">applications</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3989619405-10">[</span><span·class="ss">kernel</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">s[·...·truncated·by·diffoscope;·len:·183,·SHA:·60058d828081dd7f197799c09beaa7b26b1674d979283b90fe4c7ccc1a3de9ac·...·]-9">}</span><span·class="p">,</span><span·class="w"> |
| 156 | ··</span><span·class="p"·data-group-id=" | 156 | ··</span><span·class="p"·data-group-id="3989619405-11">{</span><span·class="ss">mod</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3989619405-12">{</span><span·class="ss">ch_app</span><span·class="p">,</span><span·class="p"·data-group-id="3989619405-13">[</s[·...·truncated·by·diffoscope;·len:·153,·SHA:·390669ca140a0b92832c438a54d4921da713c1fdbe42f07275d967b3b63cd463·...·]-11">}</span><span·class="w"> |
| 157 | ·</span><span·class="p"·data-group-id=" | 157 | ·</span><span·class="p"·data-group-id="3989619405-2">]</span><span·class="p"·data-group-id="3989619405-1">}</span><span·class="p">.</span></code></pre><p>The·<code·class="inline">.rel</code>·file·must·also·contain·<code·class="inline">kernel</code>,·<code·class="inline">stdlib</code>,·and·<code·class="inline">sasl</code>,·as·these |
| 158 | applications·are·required·by·<code·class="inline">ch_app</code>.·The·file·is·called·<code·class="inline">ch_rel-1.rel</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 158 | applications·are·required·by·<code·class="inline">ch_app</code>.·The·file·is·called·<code·class="inline">ch_rel-1.rel</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="2101014439-1">{</span><span·class="ss">release</span><span·class="p">,</span><span·class="w"> |
| 159 | ·</span><span·class="p"·data-group-id=" | 159 | ·</span><span·class="p"·data-group-id="2101014439-2">{</span><span·class="s">"ch_rel"</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"A"</span><span·class="p"·data-group-id="2101014439-2">}</span><span·class="p">,</span><span·class="w"> |
| 160 | ·</span><span·class="p"·data-group-id=" | 160 | ·</span><span·class="p"·data-group-id="2101014439-3">{</span><span·class="ss">erts</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"14.2.5"</span><span·class="p"·data-group-id="2101014439-3">}</span><span·class="p">,</span><span·class="w"> |
| 161 | ·</span><span·class="p"·data-group-id=" | 161 | ·</span><span·class="p"·data-group-id="2101014439-4">[</span><span·class="p"·data-group-id="2101014439-5">{</span><span·class="ss">kernel</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"9.2.4"</span><span·class="p"·data-group-id="2101014439-5">}</span><span·class="p">,</span><span·class="w"> |
| 162 | ··</span><span·class="p"·data-group-id=" | 162 | ··</span><span·class="p"·data-group-id="2101014439-6">{</span><span·class="ss">stdlib</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"5.2.3"</span><span·class="p"·data-group-id="2101014439-6">}</span><span·class="p">,</span><span·class="w"> |
| 163 | ··</span><span·class="p"·data-group-id=" | 163 | ··</span><span·class="p"·data-group-id="2101014439-7">{</span><span·class="ss">sasl</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"4.2.1"</span><span·class="p"·data-group-id="2101014439-7">}</span><span·class="p">,</span><span·class="w"> |
| 164 | ··</span><span·class="p"·data-group-id=" | 164 | ··</span><span·class="p"·data-group-id="2101014439-8">{</span><span·class="ss">ch_app</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"1"</span><span·class="p"·data-group-id="2101014439-8">}</span><span·class="p"·data-group-id="2101014439-4">]</span><span·class="w"> |
| 165 | </span><span·class="p"·data-group-id=" | 165 | </span><span·class="p"·data-group-id="2101014439-1">}</span><span·class="p">.</span></code></pre><p><a·href=""·id="boot"></a></p><h2·id="generating-boot-scripts"·class="section-heading"> |
| 166 | ··<a·href="#generating-boot-scripts"·class="hover-link"> | 166 | ··<a·href="#generating-boot-scripts"·class="hover-link"> |
| 167 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 167 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 168 | ··</a> | 168 | ··</a> |
| 169 | ··<span·class="text">Generating·Boot·Scripts</span> | 169 | ··<span·class="text">Generating·Boot·Scripts</span> |
| 170 | </h2> | 170 | </h2> |
| 171 | <p><a·href="../../lib/sasl-4.3/doc/html/systools.html"><code·class="inline">systools</code></a>·in·the·SASL·application·includes·tools·to·build·and·check | 171 | <p><a·href="../../lib/sasl-4.3/doc/html/systools.html"><code·class="inline">systools</code></a>·in·the·SASL·application·includes·tools·to·build·and·check |
| 172 | releases.·The·functions·read·the·<code·class="inline">.rel</code>·and·<code·class="inline">.app</code>·files·and·perform | 172 | releases.·The·functions·read·the·<code·class="inline">.rel</code>·and·<code·class="inline">.app</code>·files·and·perform |
| Offset 190, 17 lines modified | Offset 190, 17 lines modified | ||
| 190 | ··<a·href="#creating-a-release-package"·class="hover-link"> | 190 | ··<a·href="#creating-a-release-package"·class="hover-link"> |
| 191 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 191 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 192 | ··</a> | 192 | ··</a> |
| 193 | ··<span·class="text">Creating·a·Release·Package</span> | 193 | ··<span·class="text">Creating·a·Release·Package</span> |
| 194 | </h2> | 194 | </h2> |
| 195 | <p>The·<a·href="../../lib/sasl-4.3/doc/html/systools.html#make_tar/2"><code·class="inline">systools:make_tar/1,2</code></a>·function·takes·a | 195 | <p>The·<a·href="../../lib/sasl-4.3/doc/html/systools.html#make_tar/2"><code·class="inline">systools:make_tar/1,2</code></a>·function·takes·a |
| 196 | <code·class="inline">.rel</code>·file·as·input·and·creates·a·zipped·tar·file·with·the·code·for | 196 | <code·class="inline">.rel</code>·file·as·input·and·creates·a·zipped·tar·file·with·the·code·for |
| 197 | the·specified·applications,·a·<em>release·package</em>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">systools</span><span·class="p">:</span><span·class="nf">make_script</span><span·class="p"·data-group-id=" | 197 | the·specified·applications,·a·<em>release·package</em>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">systools</span><span·class="p">:</span><span·class="nf">make_script</span><span·class="p"·data-group-id="9390812157-1">(</span><span·class="s">"ch_rel-1"</span><span·class="p"·data-group-id="9390812157-1">)</span><span·class="p">.</span><span·class="w"> |
| 198 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> | 198 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> |
| 199 | 2>·</span><span·class="nc">systools</span><span·class="p">:</span><span·class="nf">make_tar</span><span·class="p"·data-group-id=" | 199 | 2>·</span><span·class="nc">systools</span><span·class="p">:</span><span·class="nf">make_tar</span><span·class="p"·data-group-id="9390812157-2">(</span><span·class="s">"ch_rel-1"</span><span·class="p"·data-group-id="9390812157-2">)</span><span·class="p">.</span><span·class="w"> |
| 200 | </span><span·class="ss">ok</span></code></pre><p>The·release·package·by·default·contains:</p><ul><li>The·<code·class="inline">.app</code>·files</li><li>The·<code·class="inline">.rel</code>·file</li><li>The·object·code·for·all·applications,·structured·according·to·the | 200 | </span><span·class="ss">ok</span></code></pre><p>The·release·package·by·default·contains:</p><ul><li>The·<code·class="inline">.app</code>·files</li><li>The·<code·class="inline">.rel</code>·file</li><li>The·object·code·for·all·applications,·structured·according·to·the |
| 201 | <a·href="applications.html#app_dir">application·directory·structure</a></li><li>The·binary·boot·script·renamed·to·<code·class="inline">start.boot</code></li></ul><pre><code·class="text">%·tar·tf·ch_rel-1.tar | 201 | <a·href="applications.html#app_dir">application·directory·structure</a></li><li>The·binary·boot·script·renamed·to·<code·class="inline">start.boot</code></li></ul><pre><code·class="text">%·tar·tf·ch_rel-1.tar |
| 202 | lib/kernel-9.2.4/ebin/kernel.app | 202 | lib/kernel-9.2.4/ebin/kernel.app |
| 203 | lib/kernel-9.2.4/ebin/application.beam | 203 | lib/kernel-9.2.4/ebin/application.beam |
| 204 | ... | 204 | ... |
| 205 | lib/stdlib-5.2.3/ebin/stdlib.app | 205 | lib/stdlib-5.2.3/ebin/stdlib.app |
| 206 | lib/stdlib-5.2.3/ebin/argparse.beam | 206 | lib/stdlib-5.2.3/ebin/argparse.beam |
| Offset 351, 15 lines modified | Offset 351, 15 lines modified | ||
| 351 | ······<p·class="built-using"> | 351 | ······<p·class="built-using"> |
| 352 | ········Built·using | 352 | ········Built·using |
| 353 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 353 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 354 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 354 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 355 | ······</p> | 355 | ······</p> |
| 356 | <p>Copyright·©·1996-202 | 356 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 357 | ····</footer> | 357 | ····</footer> |
| 358 | ··</div> | 358 | ··</div> |
| 359 | </main> | 359 | </main> |
| 360 | </div> | 360 | </div> |
| 361 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 361 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 362 | ··<script> | 362 | ··<script> |
| 363 | ··let·initialized·=·false; | 363 | ··let·initialized·=·false; |
| Offset 128, 68 lines modified | Offset 128, 68 lines modified | ||
| 128 | </h2> | 128 | </h2> |
| 129 | <p>Before·improving·the·messenger·program,·let·us·look·at·some·general·principles, | 129 | <p>Before·improving·the·messenger·program,·let·us·look·at·some·general·principles, |
| 130 | using·the·ping·pong·program·as·an·example.·Recall·that·when·"ping"·finishes,·it | 130 | using·the·ping·pong·program·as·an·example.·Recall·that·when·"ping"·finishes,·it |
| 131 | tells·"pong"·that·it·has·done·so·by·sending·the·atom·<code·class="inline">finished</code>·as·a·message·to | 131 | tells·"pong"·that·it·has·done·so·by·sending·the·atom·<code·class="inline">finished</code>·as·a·message·to |
| 132 | "pong"·so·that·"pong"·can·also·finish.·Another·way·to·let·"pong"·finish·is·to | 132 | "pong"·so·that·"pong"·can·also·finish.·Another·way·to·let·"pong"·finish·is·to |
| 133 | make·"pong"·exit·if·it·does·not·receive·a·message·from·ping·within·a·certain | 133 | make·"pong"·exit·if·it·does·not·receive·a·message·from·ping·within·a·certain |
| 134 | time.·This·can·be·done·by·adding·a·<em>time-out</em>·to·<code·class="inline">pong</code>·as·shown·in·the | 134 | time.·This·can·be·done·by·adding·a·<em>time-out</em>·to·<code·class="inline">pong</code>·as·shown·in·the |
| 135 | following·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 135 | following·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="8746560812-1">(</span><span·class="ss">tut19</span><span·class="p"·data-group-id="8746560812-1">)</span><span·class="p">.</span><span·class="w"> |
| 136 | </span><span·class="w"> | 136 | </span><span·class="w"> |
| 137 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 137 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="8746560812-2">(</span><span·class="p"·data-group-id="8746560812-3">[</span><span·class="ss">start_ping</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">start_pong</span><span·class="p">[·...·truncated·by·diffoscope;·len:·378,·SHA:·fb6d89f81e974749c17814bdf2af67cf193ad7c13e350fb6f478ebaba9ad1a31·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 138 | </span><span·class="nf">ping</span><span·class="p"·data-group-id=" | 138 | </span><span·class="nf">ping</span><span·class="p"·data-group-id="8746560812-4">(</span><span·class="mi">0</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Pong_Node</span><span·class="p"·data-group-id="8746560812-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 139 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 139 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="8746560812-5">(</span><span·class="s">"ping·finished</span><span·class="si">~n</span><span·class="s">"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8746560812-6">[</span><span·class="p"·data-group-id="87465[·...·truncated·by·diffoscope;·len:·58,·SHA:·a5189ab837399056c06afefe54ba973830f9f7c87a675f84991e055696ce11d6·...·]-5">)</span><span·class="p">;</span><span·class="w"> |
| 140 | </span><span·class="nf">ping</span><span·class="p"·data-group-id=" | 140 | </span><span·class="nf">ping</span><span·class="p"·data-group-id="8746560812-7">(</span><span·class="n">N</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Pong_Node</span><span·class="p"·data-group-id="8746560812-7">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 141 | ····</span><span·class="p"·data-group-id=" | 141 | ····</span><span·class="p"·data-group-id="8746560812-8">{</span><span·class="ss">pong</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Pong_Node</span><span·class="p"·data-group-id="8746560812-8">}</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><[·...·truncated·by·diffoscope;·len:·305,·SHA:·e9c19cba0e23aa5f3b647e0531147b13cb7f9e9c4363d23df69ae8f152d818e4·...·]-9">}</span><span·class="p">,</span><span·class="w"> |
| 142 | ····</span><span·class="k">receive</span><span·class="w"> | 142 | ····</span><span·class="k">receive</span><span·class="w"> |
| 143 | ········</span><span·class="ss">pong</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 143 | ········</span><span·class="ss">pong</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 144 | ············</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 144 | ············</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="8746560812-11">(</span><span·class="s">"Ping·received·pong</span><span·class="si">~n</span><span·class="s">"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8746560812-12">[</span><span·class="p"·data-group-id[·...·truncated·by·diffoscope;·len:·66,·SHA:·322e39e696a17c9dab196cd1702005d99d8b0287a80059a0ea3d1ab5672145f5·...·]-11">)</span><span·class="w"> |
| 145 | ····</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> | 145 | ····</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> |
| 146 | ····</span><span·class="nf">ping</span><span·class="p"·data-group-id=" | 146 | ····</span><span·class="nf">ping</span><span·class="p"·data-group-id="8746560812-13">(</span><span·class="n">N</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Pong_Node</span><span·class="p"·data-group-id="8[·...·truncated·by·diffoscope;·len:·9,·SHA:·ff2be0f3d76fa6e5d4e745ad0968ceb33f019f0b7ed8839fb583c7a9473a3dc6·...·]-13">)</span><span·class="p">.</span><span·class="w"> |
| 147 | </span><span·class="nf">pong</span><span·class="p"·data-group-id=" | 147 | </span><span·class="nf">pong</span><span·class="p"·data-group-id="8746560812-14">(</span><span·class="p"·data-group-id="8746560812-14">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 148 | ····</span><span·class="k">receive</span><span·class="w"> | 148 | ····</span><span·class="k">receive</span><span·class="w"> |
| 149 | ········</span><span·class="p"·data-group-id=" | 149 | ········</span><span·class="p"·data-group-id="8746560812-15">{</span><span·class="ss">ping</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Ping_PID</span><span·class="p"·data-group-id="8746560812-15">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 150 | ············</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 150 | ············</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="8746560812-16">(</span><span·class="s">"Pong·received·ping</span><span·class="si">~n</span><span·class="s">"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8746560812-17">[</span><span·class="p"·data-group-id[·...·truncated·by·diffoscope;·len:·66,·SHA:·18303a9fbc63ebc2c1a6a182f88ae07400688e4401cb8714b8712dcdfc788f4d·...·]-16">)</span><span·class="p">,</span><span·class="w"> |
| 151 | ············</span><span·class="n">Ping_PID</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="ss">pong</span><span·class="p">,</span><span·class="w"> | 151 | ············</span><span·class="n">Ping_PID</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="ss">pong</span><span·class="p">,</span><span·class="w"> |
| 152 | ············</span><span·class="nf">pong</span><span·class="p"·data-group-id=" | 152 | ············</span><span·class="nf">pong</span><span·class="p"·data-group-id="8746560812-18">(</span><span·class="p"·data-group-id="8746560812-18">)</span><span·class="w"> |
| 153 | ····</span><span·class="k">after</span><span·class="w">·</span><span·class="mi">5000</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 153 | ····</span><span·class="k">after</span><span·class="w">·</span><span·class="mi">5000</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 154 | ············</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 154 | ············</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="8746560812-19">(</span><span·class="s">"Pong·timed·out</span><span·class="si">~n</span><span·class="s">"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8746560812-20">[</span><span·class="p"·data-group-id="87[·...·truncated·by·diffoscope;·len:·62,·SHA:·d71110eebf6ed626eeadbb818ea37b5ed5303016539498715ca2c5510e08a80c·...·]-19">)</span><span·class="w"> |
| 155 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> | 155 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> |
| 156 | </span><span·class="nf">start_pong</span><span·class="p"·data-group-id=" | 156 | </span><span·class="nf">start_pong</span><span·class="p"·data-group-id="8746560812-21">(</span><span·class="p"·data-group-id="8746560812-21">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 157 | ····</span><span·class="nf">register</span><span·class="p"·data-group-id=" | 157 | ····</span><span·class="nf">register</span><span·class="p"·data-group-id="8746560812-22">(</span><span·class="ss">pong</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">spawn</span><span·class="p"·data-group-id="8746560812-23">(</span><span·class="ss">tut19</span><span·class="p">,</span><span·class="w">·</sp[·...·truncated·by·diffoscope;·len:·282,·SHA:·58597f5b65dcaab508c9fd53a71a27e23637fdce46e11cd0562a77a014935890·...·]-22">)</span><span·class="p">.</span><span·class="w"> |
| 158 | </span><span·class="nf">start_ping</span><span·class="p"·data-group-id=" | 158 | </span><span·class="nf">start_ping</span><span·class="p"·data-group-id="8746560812-25">(</span><span·class="n">Pong_Node</span><span·class="p"·data-group-id="8746560812-25">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 159 | ····</span><span·class="nf">spawn</span><span·class="p"·data-group-id=" | 159 | ····</span><span·class="nf">spawn</span><span·class="p"·data-group-id="8746560812-26">(</span><span·class="ss">tut19</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">ping</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8746560812-27">[</span><span·class="mi">3</span><[·...·truncated·by·diffoscope;·len:·174,·SHA:·9577010cb26080906f2d35ab541b0ffa04a61e7dd2fa17d0f5f43f0d416554ed·...·]-26">)</span><span·class="p">.</span></code></pre><p>After·this·is·compiled·and·the·file·<code·class="inline">tut19.beam</code>·is·copied·to·the·necessary |
| 160 | directories,·the·following·is·seen·on·(pong@kosken):</p><pre><code·class="text">(pong@kosken)1>·tut19:start_pong(). | 160 | directories,·the·following·is·seen·on·(pong@kosken):</p><pre><code·class="text">(pong@kosken)1>·tut19:start_pong(). |
| 161 | true | 161 | true |
| 162 | Pong·received·ping | 162 | Pong·received·ping |
| 163 | Pong·received·ping | 163 | Pong·received·ping |
| 164 | Pong·received·ping | 164 | Pong·received·ping |
| 165 | Pong·timed·out</code></pre><p>And·the·following·is·seen·on·(ping@gollum):</p><pre><code·class="text">(ping@gollum)1>·tut19:start_ping(pong@kosken). | 165 | Pong·timed·out</code></pre><p>And·the·following·is·seen·on·(ping@gollum):</p><pre><code·class="text">(ping@gollum)1>·tut19:start_ping(pong@kosken). |
| 166 | <0.36.0> | 166 | <0.36.0> |
| 167 | Ping·received·pong | 167 | Ping·received·pong |
| 168 | Ping·received·pong | 168 | Ping·received·pong |
| 169 | Ping·received·pong | 169 | Ping·received·pong |
| 170 | ping·finished</code></pre><p>The·time-out·is·set·in:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">pong</span><span·class="p"·data-group-id=" | 170 | ping·finished</code></pre><p>The·time-out·is·set·in:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">pong</span><span·class="p"·data-group-id="8778492295-1">(</span><span·class="p"·data-group-id="8778492295-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 171 | ····</span><span·class="k">receive</span><span·class="w"> | 171 | ····</span><span·class="k">receive</span><span·class="w"> |
| 172 | ········</span><span·class="p"·data-group-id=" | 172 | ········</span><span·class="p"·data-group-id="8778492295-2">{</span><span·class="ss">ping</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Ping_PID</span><span·class="p"·data-group-id="8778492295-2">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 173 | ············</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 173 | ············</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="8778492295-3">(</span><span·class="s">"Pong·received·ping</span><span·class="si">~n</span><span·class="s">"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8778492295-4">[</span><span·class="p"·data-group-id="[·...·truncated·by·diffoscope;·len:·63,·SHA:·b81840a162edf6ff4337a1e71faaa44f1d32eae02601e452bdead28113f21607·...·]-3">)</span><span·class="p">,</span><span·class="w"> |
| 174 | ············</span><span·class="n">Ping_PID</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="ss">pong</span><span·class="p">,</span><span·class="w"> | 174 | ············</span><span·class="n">Ping_PID</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="ss">pong</span><span·class="p">,</span><span·class="w"> |
| 175 | ············</span><span·class="nf">pong</span><span·class="p"·data-group-id=" | 175 | ············</span><span·class="nf">pong</span><span·class="p"·data-group-id="8778492295-5">(</span><span·class="p"·data-group-id="8778492295-5">)</span><span·class="w"> |
| 176 | ····</span><span·class="k">after</span><span·class="w">·</span><span·class="mi">5000</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 176 | ····</span><span·class="k">after</span><span·class="w">·</span><span·class="mi">5000</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 177 | ············</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 177 | ············</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="8778492295-6">(</span><span·class="s">"Pong·timed·out</span><span·class="si">~n</span><span·class="s">"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8778492295-7">[</span><span·class="p"·data-group-id="8778[·...·truncated·by·diffoscope;·len:·59,·SHA:·616d8f60c430cb6d1daeddf0c550e1247e61e8f7b28962f90202362a6939acd2·...·]-6">)</span><span·class="w"> |
| 178 | ····</span><span·class="k">end</span><span·class="p">.</span></code></pre><p>The·time-out·(<code·class="inline">after·5000</code>)·is·started·when·<code·class="inline">receive</code>·is·entered.·The·time-out | 178 | ····</span><span·class="k">end</span><span·class="p">.</span></code></pre><p>The·time-out·(<code·class="inline">after·5000</code>)·is·started·when·<code·class="inline">receive</code>·is·entered.·The·time-out |
| 179 | is·canceled·if·<code·class="inline">{ping,Ping_PID}</code>·is·received.·If·<code·class="inline">{ping,Ping_PID}</code>·is·not | 179 | is·canceled·if·<code·class="inline">{ping,Ping_PID}</code>·is·received.·If·<code·class="inline">{ping,Ping_PID}</code>·is·not |
| 180 | received,·the·actions·following·the·time-out·are·done·after·5000·milliseconds. | 180 | received,·the·actions·following·the·time-out·are·done·after·5000·milliseconds. |
| 181 | <code·class="inline">after</code>·must·be·last·in·the·<code·class="inline">receive</code>,·that·is,·preceded·by·all·other·message | 181 | <code·class="inline">after</code>·must·be·last·in·the·<code·class="inline">receive</code>,·that·is,·preceded·by·all·other·message |
| 182 | reception·specifications·in·the·<code·class="inline">receive</code>.·It·is·also·possible·to·call·a | 182 | reception·specifications·in·the·<code·class="inline">receive</code>.·It·is·also·possible·to·call·a |
| 183 | function·that·returned·an·integer·for·the·time-out:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="k">after</span><span·class="w">·</span><span·class="nf">pong_timeout</span><span·class="p"·data-group-id=" | 183 | function·that·returned·an·integer·for·the·time-out:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="k">after</span><span·class="w">·</span><span·class="nf">pong_timeout</span><span·class="p"·data-group-id="9114327493-1">(</span><span·class="p"·data-group-id="9114327493-1">)</span><span·class="w">·</span><span·class="p">-></span></code></pre><p>In·general,·there·are·better·ways·than·using·time-outs·to·supervise·parts·of·a |
| 184 | distributed·Erlang·system.·Time-outs·are·usually·appropriate·to·supervise | 184 | distributed·Erlang·system.·Time-outs·are·usually·appropriate·to·supervise |
| 185 | external·events,·for·example,·if·you·have·expected·a·message·from·some·external | 185 | external·events,·for·example,·if·you·have·expected·a·message·from·some·external |
| 186 | system·within·a·specified·time.·For·example,·a·time-out·can·be·used·to·log·a | 186 | system·within·a·specified·time.·For·example,·a·time-out·can·be·used·to·log·a |
| 187 | user·out·of·the·messenger·system·if·they·have·not·accessed·it·for,·say,·ten | 187 | user·out·of·the·messenger·system·if·they·have·not·accessed·it·for,·say,·ten |
| 188 | minutes.</p><h2·id="error-handling"·class="section-heading"> | 188 | minutes.</p><h2·id="error-handling"·class="section-heading"> |
| 189 | ··<a·href="#error-handling"·class="hover-link"> | 189 | ··<a·href="#error-handling"·class="hover-link"> |
| 190 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 190 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 209, 96 lines modified | Offset 209, 96 lines modified | ||
| 209 | something·called·a·<em>signal</em>·to·all·the·processes·it·has·links·to.</p><p>The·signal·carries·information·about·the·pid·it·was·sent·from·and·the·exit | 209 | something·called·a·<em>signal</em>·to·all·the·processes·it·has·links·to.</p><p>The·signal·carries·information·about·the·pid·it·was·sent·from·and·the·exit |
| 210 | reason.</p><p>The·default·behaviour·of·a·process·that·receives·a·normal·exit·is·to·ignore·the | 210 | reason.</p><p>The·default·behaviour·of·a·process·that·receives·a·normal·exit·is·to·ignore·the |
| 211 | signal.</p><p>The·default·behaviour·in·the·two·other·cases·(that·is,·abnormal·exit)·above·is | 211 | signal.</p><p>The·default·behaviour·in·the·two·other·cases·(that·is,·abnormal·exit)·above·is |
| 212 | to:</p><ul><li>Bypass·all·messages·to·the·receiving·process.</li><li>Kill·the·receiving·process.</li><li>Propagate·the·same·error·signal·to·the·links·of·the·killed·process.</li></ul><p>In·this·way·you·can·connect·all·processes·in·a·transaction·together·using·links. | 212 | to:</p><ul><li>Bypass·all·messages·to·the·receiving·process.</li><li>Kill·the·receiving·process.</li><li>Propagate·the·same·error·signal·to·the·links·of·the·killed·process.</li></ul><p>In·this·way·you·can·connect·all·processes·in·a·transaction·together·using·links. |
| 213 | If·one·of·the·processes·exits·abnormally,·all·the·processes·in·the·transaction | 213 | If·one·of·the·processes·exits·abnormally,·all·the·processes·in·the·transaction |
| 214 | are·killed.·As·it·is·often·wanted·to·create·a·process·and·link·to·it·at·the·same | 214 | are·killed.·As·it·is·often·wanted·to·create·a·process·and·link·to·it·at·the·same |
| 215 | time,·there·is·a·special·BIF,·<a·href="../../erts-16.0/doc/html/erlang.html#spawn_link/1">spawn_link</a>·that·does·the | 215 | time,·there·is·a·special·BIF,·<a·href="../../erts-16.0/doc/html/erlang.html#spawn_link/1">spawn_link</a>·that·does·the |
| 216 | same·as·<code·class="inline">spawn</code>,·but·also·creates·a·link·to·the·spawned·process.</p><p>Now·an·example·of·the·ping·pong·example·using·links·to·terminate·"pong":</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 216 | same·as·<code·class="inline">spawn</code>,·but·also·creates·a·link·to·the·spawned·process.</p><p>Now·an·example·of·the·ping·pong·example·using·links·to·terminate·"pong":</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="8552207142-1">(</span><span·class="ss">tut20</span><span·class="p"·data-group-id="8552207142-1">)</span><span·class="p">.</span><span·class="w"> |
| 217 | </span><span·class="w"> | 217 | </span><span·class="w"> |
| 218 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 218 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="8552207142-2">(</span><span·class="p"·data-group-id="8552207142-3">[</span><span·class="ss">start</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">··</span><span·class="ss">ping</span><span·class="p">/</span><s[·...·truncated·by·diffoscope;·len:·242,·SHA:·0c133e1c2ca2b63e7cc2872c6646800f96c430c5c766874594418e77ab4bc596·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 219 | </span><span·class="nf">ping</span><span·class="p"·data-group-id=" | 219 | </span><span·class="nf">ping</span><span·class="p"·data-group-id="8552207142-4">(</span><span·class="n">N</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Pong_Pid</span><span·class="p"·data-group-id="8552207142-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 220 | ····</span><span·class="nf">link</span><span·class="p"·data-group-id=" | 220 | ····</span><span·class="nf">link</span><span·class="p"·data-group-id="8552207142-5">(</span><span·class="n">Pong_Pid</span><span·class="p"·data-group-id="8552207142-5">)</span><span·class="p">,</span><span·class="w"> |
| 221 | ····</span><span·class="nf">ping1</span><span·class="p"·data-group-id=" | 221 | ····</span><span·class="nf">ping1</span><span·class="p"·data-group-id="8552207142-6">(</span><span·class="n">N</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Pong_Pid</span><span·class="p"·data-group-id="8552207142-6">)</span><span·class="p">.</span><span·class="w"> |
| 222 | </span><span·class="nf">ping1</span><span·class="p"·data-group-id=" | 222 | </span><span·class="nf">ping1</span><span·class="p"·data-group-id="8552207142-7">(</span><span·class="mi">0</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="p"·data-group-id="8552207142-7">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 223 | ····</span><span·class="nf">exit</span><span·class="p"·data-group-id=" | 223 | ····</span><span·class="nf">exit</span><span·class="p"·data-group-id="8552207142-8">(</span><span·class="ss">ping</span><span·class="p"·data-group-id="8552207142-8">)</span><span·class="p">;</span><span·class="w"> |
| 224 | </span><span·class="nf">ping1</span><span·class="p"·data-group-id=" | 224 | </span><span·class="nf">ping1</span><span·class="p"·data-group-id="8552207142-9">(</span><span·class="n">N</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Pong_Pid</span><span·class="p"·data-group-id="8552207142-9">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 225 | ····</span><span·class="n">Pong_Pid</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id=" | 225 | ····</span><span·class="n">Pong_Pid</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id="8552207142-10">{</span><span·class="ss">ping</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">self</span><span·class="p"·data-group-id="8552207142-11">(</span><span·class="p"·data-group-id="8552207142-11">)</span><span·class="p"·data-[·...·truncated·by·diffoscope;·len:·20,·SHA:·fca61f508bc7935427b37983154bc8531dd23770e48abb4482991ae4ff19cca5·...·]-10">}</span><span·class="p">,</span><span·class="w"> |
| 226 | ····</span><span·class="k">receive</span><span·class="w"> | 226 | ····</span><span·class="k">receive</span><span·class="w"> |
| 227 | ········</span><span·class="ss">pong</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 227 | ········</span><span·class="ss">pong</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 228 | ············</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 228 | ············</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="8552207142-12">(</span><span·class="s">"Ping·received·pong</span><span·class="si">~n</span><span·class="s">"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8552207142-13">[</span><span·class="p"·data-group-id[·...·truncated·by·diffoscope;·len:·66,·SHA:·bdc35b1ba6cc4a307308d27dba3fd1d95190e8e6b819ec6dedcc1b0ca36d5649·...·]-12">)</span><span·class="w"> |
| 229 | ····</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> | 229 | ····</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> |
| 230 | ····</span><span·class="nf">ping1</span><span·class="p"·data-group-id=" | 230 | ····</span><span·class="nf">ping1</span><span·class="p"·data-group-id="8552207142-14">(</span><span·class="n">N</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Pong_Pid</span><span·class="p"·data-group-id="85[·...·truncated·by·diffoscope;·len:·8,·SHA:·f000295e664bd696f6614e6c7ef33adcd053879b34a487e66520b15f1e88c7b8·...·]-14">)</span><span·class="p">.</span><span·class="w"> |
| 231 | </span><span·class="nf">pong</span><span·class="p"·data-group-id=" | 231 | </span><span·class="nf">pong</span><span·class="p"·data-group-id="8552207142-15">(</span><span·class="p"·data-group-id="8552207142-15">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 232 | ····</span><span·class="k">receive</span><span·class="w"> | 232 | ····</span><span·class="k">receive</span><span·class="w"> |
| 233 | ········</span><span·class="p"·data-group-id=" | 233 | ········</span><span·class="p"·data-group-id="8552207142-16">{</span><span·class="ss">ping</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Ping_PID</span><span·class="p"·data-group-id="8552207142-16">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 234 | ············</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 234 | ············</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="8552207142-17">(</span><span·class="s">"Pong·received·ping</span><span·class="si">~n</span><span·class="s">"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8552207142-18">[</span><span·class="p"·data-group-id[·...·truncated·by·diffoscope;·len:·66,·SHA:·6de2d53be2aac5b7876d0229faae81da3db15da57d592f4c33605e2f95aff46a·...·]-17">)</span><span·class="p">,</span><span·class="w"> |
| 235 | ············</span><span·class="n">Ping_PID</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="ss">pong</span><span·class="p">,</span><span·class="w"> | 235 | ············</span><span·class="n">Ping_PID</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="ss">pong</span><span·class="p">,</span><span·class="w"> |
| 236 | ············</span><span·class="nf">pong</span><span·class="p"·data-group-id=" | 236 | ············</span><span·class="nf">pong</span><span·class="p"·data-group-id="8552207142-19">(</span><span·class="p"·data-group-id="8552207142-19">)</span><span·class="w"> |
| 237 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> | 237 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> |
| 238 | </span><span·class="nf">start</span><span·class="p"·data-group-id=" | 238 | </span><span·class="nf">start</span><span·class="p"·data-group-id="8552207142-20">(</span><span·class="n">Ping_Node</span><span·class="p"·data-group-id="8552207142-20">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 239 | ····</span><span·class="n">PongPID</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">spawn</span><span·class="p"·data-group-id=" | 239 | ····</span><span·class="n">PongPID</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">spawn</span><span·class="p"·data-group-id="8552207142-21">(</span><span·class="ss">tut20</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">pong</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8552207142-22">[</span><span·class="p"·data-group[·...·truncated·by·diffoscope;·len:·69,·SHA:·6c70d857aea6abfb60d73c8d509b3b6884592f1793dc067eeb6b60b3acd3e6e7·...·]-21">)</span><span·class="p">,</span><span·class="w"> |
| 240 | ····</span><span·class="nf">spawn</span><span·class="p"·data-group-id=" | 240 | ····</span><span·class="nf">spawn</span><span·class="p"·data-group-id="8552207142-23">(</span><span·class="n">Ping_Node</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">tut20</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">ping</span><span·class="p">,</span><span·class="w">·</span>[·...·truncated·by·diffoscope;·len:·252,·SHA:·1f3440044445ea9a4307206b412adb06a74d8c7fe1fbab425b47b579126226cb·...·]-23">)</span><span·class="p">.</span></code></pre><pre><code·class="text">(s1@bill)3>·tut20:start(s2@kosken). |
| 241 | Pong·received·ping | 241 | Pong·received·ping |
| 242 | <3820.41.0> | 242 | <3820.41.0> |
| 243 | Ping·received·pong | 243 | Ping·received·pong |
| 244 | Pong·received·ping | 244 | Pong·received·ping |
| 245 | Ping·received·pong | 245 | Ping·received·pong |
| 246 | Pong·received·ping | 246 | Pong·received·ping |
| 247 | Ping·received·pong</code></pre><p>This·is·a·slight·modification·of·the·ping·pong·program·where·both·processes·are | 247 | Ping·received·pong</code></pre><p>This·is·a·slight·modification·of·the·ping·pong·program·where·both·processes·are |
| 248 | spawned·from·the·same·<code·class="inline">start/1</code>·function,·and·the·"ping"·process·can·be·spawned | 248 | spawned·from·the·same·<code·class="inline">start/1</code>·function,·and·the·"ping"·process·can·be·spawned |
| 249 | on·a·separate·node.·Notice·the·use·of·the·<code·class="inline">link</code>·BIF.·"Ping"·calls | 249 | on·a·separate·node.·Notice·the·use·of·the·<code·class="inline">link</code>·BIF.·"Ping"·calls |
| 250 | <a·href="../../erts-16.0/doc/html/erlang.html#exit/1"><code·class="inline">exit(ping)</code></a>·when·it·finishes·and·this·causes·an·exit·signal·to·be | 250 | <a·href="../../erts-16.0/doc/html/erlang.html#exit/1"><code·class="inline">exit(ping)</code></a>·when·it·finishes·and·this·causes·an·exit·signal·to·be |
| 251 | sent·to·"pong",·which·also·terminates.</p><p>It·is·possible·to·modify·the·default·behaviour·of·a·process·so·that·it·does·not | 251 | sent·to·"pong",·which·also·terminates.</p><p>It·is·possible·to·modify·the·default·behaviour·of·a·process·so·that·it·does·not |
| 252 | get·killed·when·it·receives·abnormal·exit·signals.·Instead,·all·signals·are | 252 | get·killed·when·it·receives·abnormal·exit·signals.·Instead,·all·signals·are |
| 253 | turned·into·normal·messages·on·the·format·<code·class="inline">{'EXIT',FromPID,Reason}</code>·and·added·to | 253 | turned·into·normal·messages·on·the·format·<code·class="inline">{'EXIT',FromPID,Reason}</code>·and·added·to |
| 254 | the·end·of·the·receiving·process'·message·queue.·This·behaviour·is·set·by:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">process_flag</span><span·class="p"·data-group-id=" | 254 | the·end·of·the·receiving·process'·message·queue.·This·behaviour·is·set·by:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">process_flag</span><span·class="p"·data-group-id="5948369386-1">(</span><span·class="ss">trap_exit</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">true</span><span·class="p"·data-group-id="5948369386-1">)</span></code></pre><p>There·are·several·other·process·flags,·see·<a·href="../../erts-16.0/doc/html/erlang.html#process_flag/2">erlang(3)</a>. |
| 255 | Changing·the·default·behaviour·of·a·process·in·this·way·is·usually·not·done·in | 255 | Changing·the·default·behaviour·of·a·process·in·this·way·is·usually·not·done·in |
| 256 | standard·user·programs,·but·is·left·to·the·supervisory·programs·in·OTP.·However, | 256 | standard·user·programs,·but·is·left·to·the·supervisory·programs·in·OTP.·However, |
| 257 | the·ping·pong·program·is·modified·to·illustrate·exit·trapping.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 257 | the·ping·pong·program·is·modified·to·illustrate·exit·trapping.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="0449381132-1">(</span><span·class="ss">tut21</span><span·class="p"·data-group-id="0449381132-1">)</span><span·class="p">.</span><span·class="w"> |
| 258 | </span><span·class="w"> | 258 | </span><span·class="w"> |
| 259 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 259 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="0449381132-2">(</span><span·class="p"·data-group-id="0449381132-3">[</span><span·class="ss">start</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">··</span><span·class="ss">ping</span><span·class="p">/</span><s[·...·truncated·by·diffoscope;·len:·242,·SHA:·66932262738a61fdb27bba3d1bab6ce15b246b27412a7953fa554f8e0fc65a5d·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 260 | </span><span·class="nf">ping</span><span·class="p"·data-group-id=" | 260 | </span><span·class="nf">ping</span><span·class="p"·data-group-id="0449381132-4">(</span><span·class="n">N</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Pong_Pid</span><span·class="p"·data-group-id="0449381132-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
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| 131 | ······<p·class="built-using"> | 131 | ······<p·class="built-using"> |
| 132 | ········Built·using | 132 | ········Built·using |
| 133 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 133 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 134 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 134 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 135 | ······</p> | 135 | ······</p> |
| 136 | <p>Copyright·©·1996-202 | 136 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 137 | ····</footer> | 137 | ····</footer> |
| 138 | ··</div> | 138 | ··</div> |
| 139 | </main> | 139 | </main> |
| 140 | </div> | 140 | </div> |
| 141 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 141 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 142 | ··<script> | 142 | ··<script> |
| 143 | ··let·initialized·=·false; | 143 | ··let·initialized·=·false; |
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| 128 | the·order·specified·by·this·list,·and·are·terminated·in·the·reverse·order.</p><h2·id="example"·class="section-heading"> | 128 | the·order·specified·by·this·list,·and·are·terminated·in·the·reverse·order.</p><h2·id="example"·class="section-heading"> |
| 129 | ··<a·href="#example"·class="hover-link"> | 129 | ··<a·href="#example"·class="hover-link"> |
| 130 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 130 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 131 | ··</a> | 131 | ··</a> |
| 132 | ··<span·class="text">Example</span> | 132 | ··<span·class="text">Example</span> |
| 133 | </h2> | 133 | </h2> |
| 134 | <p>The·callback·module·for·a·supervisor·starting·the·server·from | 134 | <p>The·callback·module·for·a·supervisor·starting·the·server·from |
| 135 | <a·href="gen_server_concepts.html#ex">gen_server·Behaviour</a>·can·look·as·follows:</p><p><a·href=""·id="ex"></a></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 135 | <a·href="gen_server_concepts.html#ex">gen_server·Behaviour</a>·can·look·as·follows:</p><p><a·href=""·id="ex"></a></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="4730634312-1">(</span><span·class="ss">ch_sup</span><span·class="p"·data-group-id="4730634312-1">)</span><span·class="p">.</span><span·class="w"> |
| 136 | </span><span·class="p">-</span><span·class="na">behaviour</span><span·class="p"·data-group-id=" | 136 | </span><span·class="p">-</span><span·class="na">behaviour</span><span·class="p"·data-group-id="4730634312-2">(</span><span·class="ss">supervisor</span><span·class="p"·data-group-id="4730634312-2">)</span><span·class="p">.</span><span·class="w"> |
| 137 | </span><span·class="w"> | 137 | </span><span·class="w"> |
| 138 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="7414407049-3">(</span><span·class="p"·data-group-id="7414407049-4">[</span><span·class="ss">start_link</span><span·class="p">/</span><span·class="mi">0</span><span·class="p"·data-group-id="7414407049-4">]</span><span·class="p"·data-group-id="7414407049-3">)</span><span·class="p">.</span><span·class="w"> | ||
| 139 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 138 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="4730634312-3">(</span><span·class="p"·data-group-id="4730634312-4">[</span><span·class="ss">start_link</span><span·class="p">/</span><span·class="mi">0</span><span·class="p"·data-group-id="4730634312-4">]</span><span·class="p"·data-group-id="4730634312-3">)</span><span·class="p">.</span><span·class="w"> |
| 139 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="4730634312-5">(</span><span·class="p"·data-group-id="4730634312-6">[</span><span·class="ss">init</span><span·class="p">/</span><span·class="mi">1</span><span·class="p"·data-group-id="4730634312-6">]</span><span·class="p"·data-group-id="4730634312-5">)</span><span·class="p">.</span><span·class="w"> | ||
| 140 | </span><span·class="nf">start_link</span><span·class="p"·data-group-id=" | 140 | </span><span·class="nf">start_link</span><span·class="p"·data-group-id="4730634312-7">(</span><span·class="p"·data-group-id="4730634312-7">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 141 | ····</span><span·class="nc">supervisor</span><span·class="p">:</span><span·class="nf">start_link</span><span·class="p"·data-group-id=" | 141 | ····</span><span·class="nc">supervisor</span><span·class="p">:</span><span·class="nf">start_link</span><span·class="p"·data-group-id="4730634312-8">(</span><span·class="ss">ch_sup</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4730634312-9">[</span><span·class="p"·data-group-id="4730634312-9">]</span><span·class="p"·data-group-id="4730634312-8">)</span><span·class="p">.</span><span·class="w"> |
| 142 | </span><span·class="nf">init</span><span·class="p"·data-group-id=" | 142 | </span><span·class="nf">init</span><span·class="p"·data-group-id="4730634312-10">(</span><span·class="p">_</span><span·class="n">Args</span><span·class="p"·data-group-id="4730634312-10">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 143 | ····</span><span·class="n">SupFlags</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 143 | ····</span><span·class="n">SupFlags</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="4730634312-11">#{</span><span·class="ss">strategy</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">one_for_one</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">intensity</span><span·cl[·...·truncated·by·diffoscope;·len:·313,·SHA:·ee4d9019e67b16c5a220fbc49cec978d23f36882db60c3b8c2d1bc61124e2df7·...·]-11">}</span><span·class="p">,</span><span·class="w"> |
| 144 | ····</span><span·class="n">ChildSpecs</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 144 | ····</span><span·class="n">ChildSpecs</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="4730634312-12">[</span><span·class="p"·data-group-id="4730634312-13">#{</span><span·class="ss">id</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">ch3</span><span·class="p">,</span><span·class="w"> |
| 145 | ····················</span><span·class="ss">start</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id=" | 145 | ····················</span><span·class="ss">start</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="4730634312-14">{</span><span·class="ss">ch3</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">start_link</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4730634312-15">[</span><span·class="p"·data-g[·...·truncated·by·diffoscope;·len:·73,·SHA:·cb4becc6252df9558893ef7361717dedf2ff598250d4c23c1a14a2ceae67a31a·...·]-14">}</span><span·class="p">,</span><span·class="w"> |
| 146 | ····················</span><span·class="ss">restart</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">permanent</span><span·class="p">,</span><span·class="w"> | 146 | ····················</span><span·class="ss">restart</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">permanent</span><span·class="p">,</span><span·class="w"> |
| 147 | ····················</span><span·class="ss">shutdown</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">brutal_kill</span><span·class="p">,</span><span·class="w"> | 147 | ····················</span><span·class="ss">shutdown</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">brutal_kill</span><span·class="p">,</span><span·class="w"> |
| 148 | ····················</span><span·class="ss">type</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">worker</span><span·class="p">,</span><span·class="w"> | 148 | ····················</span><span·class="ss">type</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">worker</span><span·class="p">,</span><span·class="w"> |
| 149 | ····················</span><span·class="ss">modules</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id=" | 149 | ····················</span><span·class="ss">modules</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="4730634312-16">[</span><span·class="ss">ch3</span><span·class="p"·data-group-id="4730634312-16">]</span><span·class="p"·data-group-id="4730634312-13">}</span><span·class="p"·data-group-id="4730634312-12">]</span><span·class="p">,</span><span·class="w"> |
| 150 | ····</span><span·class="p"·data-group-id=" | 150 | ····</span><span·class="p"·data-group-id="4730634312-17">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4730634312-18">{</span><span·class="n">SupFlags</span><span·class="p">,</span><span·class="w">·</span><span·class="n">ChildSpecs[·...·truncated·by·diffoscope;·len:·102,·SHA:·5c288d84f0e7c196a108003a4087653f3a6ac1e7e558e8532b7f9344de500dc3·...·]-17">}</span><span·class="p">.</span></code></pre><p>The·<code·class="inline">SupFlags</code>·variable·in·the·return·value·from·<code·class="inline">init/1</code>·represents·the |
| 151 | <a·href="sup_princ.html#flags">supervisor·flags</a>.</p><p>The·<code·class="inline">ChildSpecs</code>·variable·in·the·return·value·from·<code·class="inline">init/1</code>·is·a·list·of | 151 | <a·href="sup_princ.html#flags">supervisor·flags</a>.</p><p>The·<code·class="inline">ChildSpecs</code>·variable·in·the·return·value·from·<code·class="inline">init/1</code>·is·a·list·of |
| 152 | <a·href="sup_princ.html#spec">child·specifications</a>.</p><p><a·href=""·id="flags"></a></p><h2·id="supervisor-flags"·class="section-heading"> | 152 | <a·href="sup_princ.html#spec">child·specifications</a>.</p><p><a·href=""·id="flags"></a></p><h2·id="supervisor-flags"·class="section-heading"> |
| 153 | ··<a·href="#supervisor-flags"·class="hover-link"> | 153 | ··<a·href="#supervisor-flags"·class="hover-link"> |
| 154 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 154 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 155 | ··</a> | 155 | ··</a> |
| 156 | ··<span·class="text">Supervisor·Flags</span> | 156 | ··<span·class="text">Supervisor·Flags</span> |
| 157 | </h2> | 157 | </h2> |
| 158 | <p>This·is·the·type·definition·for·the·supervisor·flags:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">sup_flags</span><span·class="p"·data-group-id=" | 158 | <p>This·is·the·type·definition·for·the·supervisor·flags:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">sup_flags</span><span·class="p"·data-group-id="7098106113-1">(</span><span·class="p"·data-group-id="7098106113-1">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="7098106113-2">#{</span><span·class="ss">strategy</span><span·class="w">·</span[·...·truncated·by·diffoscope;·len:·179,·SHA:·bdd8bbc84d8f5f159edadc888842ed587549975179197118134afd1cff924f41·...·]-3">)</span><span·class="p">,</span><span·class="w">···········</span><span·class="c1">%·optional</span><span·class="w"> |
| 159 | ················</span><span·class="ss">intensity</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="nf">non_neg_integer</span><span·class="p"·data-group-id=" | 159 | ················</span><span·class="ss">intensity</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="nf">non_neg_integer</span><span·class="p"·data-group-id="7098106113-4">(</span><span·class="p"·data-group-id="7098106113-4">)</span><span·class="p">,</span><span·class="w">···</span><span·class="c1">%·optional</span><span·class="w"> |
| 160 | ················</span><span·class="ss">period</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="nf">pos_integer</span><span·class="p"·data-group-id=" | 160 | ················</span><span·class="ss">period</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="nf">pos_integer</span><span·class="p"·data-group-id="7098106113-5">(</span><span·class="p"·data-group-id="7098106113-5">)</span><span·class="p">,</span><span·class="w">··········</span><span·class="c1">%·optional</span><span·class="w"> |
| 161 | ················</span><span·class="ss">auto_shutdown</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="nf">auto_shutdown</span><span·class="p"·data-group-id=" | 161 | ················</span><span·class="ss">auto_shutdown</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="nf">auto_shutdown</span><span·class="p"·data-group-id="7098106113-6">(</span><span·class="p"·data-group-id="7098106113-6">)</span><span·class="p"·data-group-id="7098106113-2">}</span><span·class="w">·</span><span·class="c1">%·optional</span><span·class="w"> |
| 162 | ····</span><span·class="nf">strategy</span><span·class="p"·data-group-id=" | 162 | ····</span><span·class="nf">strategy</span><span·class="p"·data-group-id="7098106113-7">(</span><span·class="p"·data-group-id="7098106113-7">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">one_for_all</span><span·class="w"> |
| 163 | ···············</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">one_for_one</span><span·class="w"> | 163 | ···············</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">one_for_one</span><span·class="w"> |
| 164 | ···············</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">rest_for_one</span><span·class="w"> | 164 | ···············</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">rest_for_one</span><span·class="w"> |
| 165 | ···············</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">simple_one_for_one</span><span·class="w"> | 165 | ···············</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">simple_one_for_one</span><span·class="w"> |
| 166 | ····</span><span·class="nf">auto_shutdown</span><span·class="p"·data-group-id=" | 166 | ····</span><span·class="nf">auto_shutdown</span><span·class="p"·data-group-id="7098106113-8">(</span><span·class="p"·data-group-id="7098106113-8">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">never</span><span·class="w"> |
| 167 | ····················</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">any_significant</span><span·class="w"> | 167 | ····················</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">any_significant</span><span·class="w"> |
| 168 | ····················</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">all_significant</span></code></pre><ul><li><code·class="inline">strategy</code>·specifies·the·<a·href="sup_princ.html#strategy">restart·strategy</a>.</li><li><code·class="inline">intensity</code>·and·<code·class="inline">period</code>·specify·the | 168 | ····················</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">all_significant</span></code></pre><ul><li><code·class="inline">strategy</code>·specifies·the·<a·href="sup_princ.html#strategy">restart·strategy</a>.</li><li><code·class="inline">intensity</code>·and·<code·class="inline">period</code>·specify·the |
| 169 | <a·href="sup_princ.html#max_intensity">maximum·restart·intensity</a>.</li><li><code·class="inline">auto_shutdown</code>·specifies·whether·and·when·a·supervisor·should | 169 | <a·href="sup_princ.html#max_intensity">maximum·restart·intensity</a>.</li><li><code·class="inline">auto_shutdown</code>·specifies·whether·and·when·a·supervisor·should |
| 170 | <a·href="sup_princ.html#automatic-shutdown">automatically·shut·itself·down</a>.</li></ul><p><a·href=""·id="strategy"></a></p><h2·id="restart-strategy"·class="section-heading"> | 170 | <a·href="sup_princ.html#automatic-shutdown">automatically·shut·itself·down</a>.</li></ul><p><a·href=""·id="strategy"></a></p><h2·id="restart-strategy"·class="section-heading"> |
| 171 | ··<a·href="#restart-strategy"·class="hover-link"> | 171 | ··<a·href="#restart-strategy"·class="hover-link"> |
| 172 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 172 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 173 | ··</a> | 173 | ··</a> |
| Offset 408, 28 lines modified | Offset 408, 28 lines modified | ||
| 408 | exhaust·the·<a·href="sup_princ.html#max_intensity">Maximum·Restart·Intensity</a>·of·the | 408 | exhaust·the·<a·href="sup_princ.html#max_intensity">Maximum·Restart·Intensity</a>·of·the |
| 409 | parent·supervisor.</p></section><p><a·href=""·id="spec"></a></p><h2·id="child-specification"·class="section-heading"> | 409 | parent·supervisor.</p></section><p><a·href=""·id="spec"></a></p><h2·id="child-specification"·class="section-heading"> |
| 410 | ··<a·href="#child-specification"·class="hover-link"> | 410 | ··<a·href="#child-specification"·class="hover-link"> |
| 411 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 411 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 412 | ··</a> | 412 | ··</a> |
| 413 | ··<span·class="text">Child·Specification</span> | 413 | ··<span·class="text">Child·Specification</span> |
| 414 | </h2> | 414 | </h2> |
| 415 | <p>The·type·definition·for·a·child·specification·is·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">child_spec</span><span·class="p"·data-group-id="8918920103-1">(</span><span·class="p"·data-group-id="8918920103-1">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="8918920103-2">#{</span><span·class="ss">id</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="nf">child_id</span><span·class="p"·data-group-id="8918920103-3">(</span><span·class="p"·data-group-id="8918920103-3">)</span><span·class="p">,</span><span·class="w">·············</span><span·class="c1">%·mandatory</span><span·class="w"> | ||
| 416 | 415 | <p>The·type·definition·for·a·child·specification·is·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">child_spec</span><span·class="p"·data-group-id="5488546755-1">(</span><span·class="p"·data-group-id="5488546755-1">)</span><[·...·truncated·by·diffoscope;·len:·406,·SHA:·098ec17fc94df4a71b95fa42a84749b69006409aec4cdd0e4d18c25204cd85eb·...·]············</span><span·class="c1">%·mandatory</span><span·class="w"> | |
| 416 | ·················</span><span·class="ss">start</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="nf">mfargs</span><span·class="p"·data-group-id="5488546755-4">(</span><span·class="p"·data-group-id="5488546755-4">)</span><span·class="p">,</span><span·class="w">············</span><span·class="c1">%·mandatory</span><span·class="w"> | ||
| 417 | ·················</span><span·class="ss">restart</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="nf">restart</span><span·class="p"·data-group-id=" | 417 | ·················</span><span·class="ss">restart</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="nf">restart</span><span·class="p"·data-group-id="5488546755-5">(</span><span·class="p"·data-group-id="5488546755-5">)</span><span·class="p">,</span><span·class="w">·········</span><span·class="c1">%·optional</span><span·class="w"> |
| 418 | ·················</span><span·class="ss">significant</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="nf">significant</span><span·class="p"·data-group-id="8918920103-6">(</span><span·class="p"·data-group-id="8918920103-6">)</span><span·class="p">,</span><span·class="w">·</span><span·class="c1">%·optional</span><span·class="w"> | ||
| 419 | ·················</span><span·class="ss">shutdown</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="nf">shutdown</span><span·class="p"·data-group-id="8918920103-7">(</span><span·class="p"·data-group-id="8918920103-7">)</span><span·class="p">,</span><span·class="w">·······</span><span·class="c1">%·optional</span><span·class="w"> | ||
| 420 | ·················</span><span·class="ss"> | 418 | ·················</span><span·class="ss">significant</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="nf">significant</span><span·class="p"·data-group-id="5488546755-6">(</span><span·class="p"·data-group-id="5488546755-6">)</span><span·class="p">,</sp[·...·truncated·by·diffoscope;·len:·19,·SHA:·887e09d9f57385f2929afb80f23f02203796ca6431e1f51107d90a29beb84747·...·]·</span><span·class="c1">%·optional</span><span·class="w"> |
| 419 | ·················</span><span·class="ss">shutdown</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="nf">shutdown</span><span·class="p"·data-group-id="5488546755-7">(</span><span·class="p"·data-group-id="5488546755-7">)</span><span·class="p">,</span><span·class="w">·······</span><span·class="c1">%·optional</span><span·class="w"> | ||
| 420 | ·················</span><span·class="ss">type</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="nf">worker</span><span·class="p"·data-group-id="5488546755-8">(</span><span·class="p"·data-group-id="5488546755-8">)</span><span·class="p">,</span><span·class="w">·············</span><span·class="c1">%·optional</span><span·class="w"> | ||
| 421 | ·················</span><span·class="ss">modules</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="nf">modules</span><span·class="p"·data-group-id=" | 421 | ·················</span><span·class="ss">modules</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="nf">modules</span><span·class="p"·data-group-id="5488546755-9">(</span><span·class="p"·data-group-id="5488546755-9">)</span><span·class="p"·data-group-id="5488546755-2">}</span><span·class="w">·········</span><span·class="c1">%·optional</span><span·class="w"> |
| 422 | ····</span><span·class="nf">child_id</span><span·class="p"·data-group-id=" | 422 | ····</span><span·class="nf">child_id</span><span·class="p"·data-group-id="5488546755-10">(</span><span·class="p"·data-group-id="5488546755-10">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">term</span><span·class="p"·data-group-id="5488546755-11">(</span><span·class="p"·data-grou[·...·truncated·by·diffoscope;·len:·16,·SHA:·8d5e0d695f1ddb7608128b6cb1b488c0f2be1af9b6982dc34aa2ccb1bb620b04·...·]-11">)</span><span·class="w"> |
| 423 | ····</span><span·class="nf">mfargs</span><span·class="p"·data-group-id=" | 423 | ····</span><span·class="nf">mfargs</span><span·class="p"·data-group-id="5488546755-12">(</span><span·class="p"·data-group-id="5488546755-12">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="5488546755-13">{</span><span·class="n">M</span><span·class="w">·</span><span[·...·truncated·by·diffoscope;·len:·962,·SHA:·736545ded38079a98bdb78271f3e9ffee60ace5bc34b00e56fef2056f1176f76·...·]-13">}</span><span·class="w"> |
| 424 | ····</span><span·class="nf">modules</span><span·class="p"·data-group-id=" | 424 | ····</span><span·class="nf">modules</span><span·class="p"·data-group-id="5488546755-18">(</span><span·class="p"·data-group-id="5488546755-18">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="5488546755-19">[</span><span·class="nf">module</span><span·class="p"·data-gr[·...·truncated·by·diffoscope;·len:·126,·SHA:·8ba787b8d067e739946b3a08e653f391b32199d363d8ba37f2ceff9692fa4ab4·...·]-19">]</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">dynamic</span><span·class="w"> |
| 425 | ····</span><span·class="nf">restart</span><span·class="p"·data-group-id=" | 425 | ····</span><span·class="nf">restart</span><span·class="p"·data-group-id="5488546755-21">(</span><span·class="p"·data-group-id="5488546755-21">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">permanent</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">transient</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">temporary</span><span·class="w"> |
| 426 | ····</span><span·class="nf">significant</span><span·class="p"·data-group-id=" | 426 | ····</span><span·class="nf">significant</span><span·class="p"·data-group-id="5488546755-22">(</span><span·class="p"·data-group-id="5488546755-22">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">boolean</span><span·class="p"·data-group-id="5488546755-23">(</span><span·class="p"·data-g[·...·truncated·by·diffoscope;·len:·19,·SHA:·785efa5c8dd634666d9583903059aa11367e46d29282384ea2c59dde36288ae5·...·]-23">)</span><span·class="w"> |
| 427 | ····</span><span·class="nf">shutdown</span><span·class="p"·data-group-id=" | 427 | ····</span><span·class="nf">shutdown</span><span·class="p"·data-group-id="5488546755-24">(</span><span·class="p"·data-group-id="5488546755-24">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">brutal_kill</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span>[·...·truncated·by·diffoscope;·len:·126,·SHA:·5a1fda5b4e10aceb43b4fd5a155f2e64e5785f481c3a131ee546841615287b9f·...·]-25">)</span><span·class="w"> |
| 428 | ····</span><span·class="nf">worker</span><span·class="p"·data-group-id=" | 428 | ····</span><span·class="nf">worker</span><span·class="p"·data-group-id="5488546755-26">(</span><span·class="p"·data-group-id="5488546755-26">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">worker</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">supervisor</span></code></pre><ul><li><p><code·class="inline">id</code>·is·used·to·identify·the·child·specification·internally·by·the·supervisor.</p><p>The·<code·class="inline">id</code>·key·is·mandatory.</p><p>Note·that·this·identifier·occasionally·has·been·called·"name".·As·far·as |
| 429 | possible,·the·terms·"identifier"·or·"id"·are·now·used·but·in·order·to·keep | 429 | possible,·the·terms·"identifier"·or·"id"·are·now·used·but·in·order·to·keep |
| 430 | backwards·compatibility,·some·occurrences·of·"name"·can·still·be·found,·for | 430 | backwards·compatibility,·some·occurrences·of·"name"·can·still·be·found,·for |
| 431 | example·in·error·messages.</p></li><li><p><code·class="inline">start</code>·defines·the·function·call·used·to·start·the·child·process.·It·is·a | 431 | example·in·error·messages.</p></li><li><p><code·class="inline">start</code>·defines·the·function·call·used·to·start·the·child·process.·It·is·a |
| 432 | module-function-arguments·tuple·used·as·<a·href="../../erts-16.0/doc/html/erlang.html#apply/3"><code·class="inline">apply(M,·F,·A)</code></a>.</p><p>It·is·to·be·(or·result·in)·a·call·to·any·of·the·following:</p><ul><li><a·href="../../lib/stdlib-7.0/doc/html/supervisor.html#start_link/3"><code·class="inline">supervisor:start_link/2,3</code></a></li><li><a·href="../../lib/stdlib-7.0/doc/html/gen_server.html#start_link/4"><code·class="inline">gen_server:start_link/3,4</code></a></li><li><a·href="../../lib/stdlib-7.0/doc/html/gen_statem.html#start_link/4"><code·class="inline">gen_statem:start_link/3,4</code></a></li><li><a·href="../../lib/stdlib-7.0/doc/html/gen_event.html#start_link/2"><code·class="inline">gen_event:start_link/0,1,2</code></a></li><li>A·function·compliant·with·these·functions.·For·details,·see | 432 | module-function-arguments·tuple·used·as·<a·href="../../erts-16.0/doc/html/erlang.html#apply/3"><code·class="inline">apply(M,·F,·A)</code></a>.</p><p>It·is·to·be·(or·result·in)·a·call·to·any·of·the·following:</p><ul><li><a·href="../../lib/stdlib-7.0/doc/html/supervisor.html#start_link/3"><code·class="inline">supervisor:start_link/2,3</code></a></li><li><a·href="../../lib/stdlib-7.0/doc/html/gen_server.html#start_link/4"><code·class="inline">gen_server:start_link/3,4</code></a></li><li><a·href="../../lib/stdlib-7.0/doc/html/gen_statem.html#start_link/4"><code·class="inline">gen_statem:start_link/3,4</code></a></li><li><a·href="../../lib/stdlib-7.0/doc/html/gen_event.html#start_link/2"><code·class="inline">gen_event:start_link/0,1,2</code></a></li><li>A·function·compliant·with·these·functions.·For·details,·see |
| 433 | <a·href="../../lib/stdlib-7.0/doc/html/supervisor.html"><code·class="inline">supervisor</code></a>.</li></ul><p>The·<code·class="inline">start</code>·key·is·mandatory.</p></li><li><p><a·href=""·id="restart"></a>·<code·class="inline">restart</code>·defines·when·a·terminated·child·process·is·to·be | 433 | <a·href="../../lib/stdlib-7.0/doc/html/supervisor.html"><code·class="inline">supervisor</code></a>.</li></ul><p>The·<code·class="inline">start</code>·key·is·mandatory.</p></li><li><p><a·href=""·id="restart"></a>·<code·class="inline">restart</code>·defines·when·a·terminated·child·process·is·to·be |
| 434 | restarted.</p><ul><li>A·<code·class="inline">permanent</code>·child·process·is·always·restarted.</li><li>A·<code·class="inline">temporary</code>·child·process·is·never·restarted·(not·even·when·the·supervisor | 434 | restarted.</p><ul><li>A·<code·class="inline">permanent</code>·child·process·is·always·restarted.</li><li>A·<code·class="inline">temporary</code>·child·process·is·never·restarted·(not·even·when·the·supervisor |
| 435 | restart·strategy·is·<code·class="inline">rest_for_one</code>·or·<code·class="inline">one_for_all</code>·and·a·sibling·death | 435 | restart·strategy·is·<code·class="inline">rest_for_one</code>·or·<code·class="inline">one_for_all</code>·and·a·sibling·death |
| Offset 457, 53 lines modified | Offset 457, 53 lines modified | ||
| 457 | <code·class="inline">supervisor</code>,·the·default·value·<code·class="inline">infinity</code>·will·be·used.</p></li><li><p><code·class="inline">type</code>·specifies·whether·the·child·process·is·a·supervisor·or·a·worker.</p><p>The·<code·class="inline">type</code>·key·is·optional.·If·it·is·not·given,·the·default·value·<code·class="inline">worker</code> | 457 | <code·class="inline">supervisor</code>,·the·default·value·<code·class="inline">infinity</code>·will·be·used.</p></li><li><p><code·class="inline">type</code>·specifies·whether·the·child·process·is·a·supervisor·or·a·worker.</p><p>The·<code·class="inline">type</code>·key·is·optional.·If·it·is·not·given,·the·default·value·<code·class="inline">worker</code> |
| 458 | will·be·used.</p></li><li><p><code·class="inline">modules</code>·has·to·be·a·list·consisting·of·a·single·element.·The·value | 458 | will·be·used.</p></li><li><p><code·class="inline">modules</code>·has·to·be·a·list·consisting·of·a·single·element.·The·value |
| 459 | of·that·element·depends·on·the·behaviour·of·the·process:</p><ul><li>If·the·child·process·is·a·<code·class="inline">gen_event</code>,·the·element·has·to·be·the·atom | 459 | of·that·element·depends·on·the·behaviour·of·the·process:</p><ul><li>If·the·child·process·is·a·<code·class="inline">gen_event</code>,·the·element·has·to·be·the·atom |
| 460 | <code·class="inline">dynamic</code>.</li><li>Otherwise,·the·element·should·be·<code·class="inline">Module</code>,·where·<code·class="inline">Module</code>·is·the | 460 | <code·class="inline">dynamic</code>.</li><li>Otherwise,·the·element·should·be·<code·class="inline">Module</code>,·where·<code·class="inline">Module</code>·is·the |
| 461 | name·of·the·callback·module.</li></ul><p>This·information·is·used·by·the·release·handler·during·upgrades·and | 461 | name·of·the·callback·module.</li></ul><p>This·information·is·used·by·the·release·handler·during·upgrades·and |
| 462 | downgrades;·see·<a·href="release_handling.html">Release·Handling</a>.</p><p>The·<code·class="inline">modules</code>·key·is·optional.·If·it·is·not·given,·it·defaults·to·<code·class="inline">[M]</code>,·where | 462 | downgrades;·see·<a·href="release_handling.html">Release·Handling</a>.</p><p>The·<code·class="inline">modules</code>·key·is·optional.·If·it·is·not·given,·it·defaults·to·<code·class="inline">[M]</code>,·where |
| 463 | <code·class="inline">M</code>·comes·from·the·child's·start·<code·class="inline">{M,F,A}</code>.</p></li></ul><p><em>Example:</em>·The·child·specification·to·start·the·server·<code·class="inline">ch3</code>·in·the·previous | 463 | <code·class="inline">M</code>·comes·from·the·child's·start·<code·class="inline">{M,F,A}</code>.</p></li></ul><p><em>Example:</em>·The·child·specification·to·start·the·server·<code·class="inline">ch3</code>·in·the·previous |
| 464 | example·look·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 464 | example·look·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="7224526288-1">#{</span><span·class="ss">id</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">ch3</span><span·class="p">,</span><span·class="w"> |
| 465 | ··</span><span·class="ss">start</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id=" | 465 | ··</span><span·class="ss">start</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="7224526288-2">{</span><span·class="ss">ch3</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">start_link</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="7224526288-3">[</span><span·class="p"·data-gro[·...·truncated·by·diffoscope;·len:·70,·SHA:·652ddd16fff9d8f09a22efa2dc1790dc222185c3907627d0f6cb74cb59477057·...·]-2">}</span><span·class="p">,</span><span·class="w"> |
| 466 | ··</span><span·class="ss">restart</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">permanent</span><span·class="p">,</span><span·class="w"> | 466 | ··</span><span·class="ss">restart</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">permanent</span><span·class="p">,</span><span·class="w"> |
| 467 | ··</span><span·class="ss">shutdown</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">brutal_kill</span><span·class="p">,</span><span·class="w"> | 467 | ··</span><span·class="ss">shutdown</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">brutal_kill</span><span·class="p">,</span><span·class="w"> |
| 468 | ··</span><span·class="ss">type</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">worker</span><span·class="p">,</span><span·class="w"> | 468 | ··</span><span·class="ss">type</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">worker</span><span·class="p">,</span><span·class="w"> |
| 469 | ··</span><span·class="ss">modules</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id=" | 469 | ··</span><span·class="ss">modules</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="7224526288-4">[</span><span·class="ss">ch3</span><span·class="p"·data-group-id="7224526288-4">]</span><span·class="p"·data-group-id="7224526288-1">}</span></code></pre><p>or·simplified,·relying·on·the·default·values:</p><pre><code·class="text">#{id·=>·ch3, |
| 470 | ··start·=>·{ch3,·start_link,·[]}, | 470 | ··start·=>·{ch3,·start_link,·[]}, |
| 471 | ··shutdown·=>·brutal_kill}</code></pre><p>Example:·A·child·specification·to·start·the·event·manager·from·the·chapter·about | 471 | ··shutdown·=>·brutal_kill}</code></pre><p>Example:·A·child·specification·to·start·the·event·manager·from·the·chapter·about |
| 472 | <a·href="events.html#mgr">gen_event</a>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="5 | 472 | <a·href="events.html#mgr">gen_event</a>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="5060564724-1">#{</span><span·class="ss">id</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">error_man</span><span·class="p">,</span><span·class="w"> |
| 473 | ··</span><span·class="ss">start</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="5 | 473 | ··</span><span·class="ss">start</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="5060564724-2">{</span><span·class="ss">gen_event</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">start_link</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="5060564724-3">[</span><span·class="p"·dat[·...·truncated·by·diffoscope;·len:·290,·SHA:·d4c8f39b276ec492b64c0d3d166793969044c1932eeccdad02e4ba68208cd173·...·]4-2">}</span><span·class="p">,</span><span·class="w"> |
| 474 | ··</span><span·class="ss">modules</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">dynamic</span><span·class="p"·data-group-id="5 | 474 | ··</span><span·class="ss">modules</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">dynamic</span><span·class="p"·data-group-id="5060564724-1">}</span></code></pre><p>Both·server·and·event·manager·are·registered·processes·which·can·be·expected·to |
| 475 | be·always·accessible.·Thus·they·are·specified·to·be·<code·class="inline">permanent</code>.</p><p><code·class="inline">ch3</code>·does·not·need·to·do·any·cleaning·up·before·termination.·Thus,·no·shutdown | 475 | be·always·accessible.·Thus·they·are·specified·to·be·<code·class="inline">permanent</code>.</p><p><code·class="inline">ch3</code>·does·not·need·to·do·any·cleaning·up·before·termination.·Thus,·no·shutdown |
| 476 | time·is·needed,·but·<code·class="inline">brutal_kill</code>·is·sufficient.·<code·class="inline">error_man</code>·can·need·some·time | 476 | time·is·needed,·but·<code·class="inline">brutal_kill</code>·is·sufficient.·<code·class="inline">error_man</code>·can·need·some·time |
| 477 | for·the·event·handlers·to·clean·up,·thus·the·shutdown·time·is·set·to·5000·ms | 477 | for·the·event·handlers·to·clean·up,·thus·the·shutdown·time·is·set·to·5000·ms |
| 478 | (which·is·the·default·value).</p><p>Example:·A·child·specification·to·start·another·supervisor:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 478 | (which·is·the·default·value).</p><p>Example:·A·child·specification·to·start·another·supervisor:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="7263911291-1">#{</span><span·class="ss">id</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">sup</span><span·class="p">,</span><span·class="w"> |
| 479 | ··</span><span·class="ss">start</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id=" | 479 | ··</span><span·class="ss">start</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="7263911291-2">{</span><span·class="ss">sup</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">start_link</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="7263911291-3">[</span><span·class="p"·data-gro[·...·truncated·by·diffoscope;·len:·70,·SHA:·2f044e54de06da87a2087a2ed42555d896fdb350878ca965c135c7dfe4fe5cf4·...·]-2">}</span><span·class="p">,</span><span·class="w"> |
| 480 | ··</span><span·class="ss">restart</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">transient</span><span·class="p">,</span><span·class="w"> | 480 | ··</span><span·class="ss">restart</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">transient</span><span·class="p">,</span><span·class="w"> |
| 481 | ··</span><span·class="ss">type</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">supervisor</span><span·class="p"·data-group-id=" | 481 | ··</span><span·class="ss">type</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">supervisor</span><span·class="p"·data-group-id="7263911291-1">}</span><span·class="w">·</span><span·class="c1">%·will·cause·default·shutdown=>infinity</span></code></pre><p><a·href=""·id="super_tree"></a></p><h2·id="starting-a-supervisor"·class="section-heading"> |
| 482 | ··<a·href="#starting-a-supervisor"·class="hover-link"> | 482 | ··<a·href="#starting-a-supervisor"·class="hover-link"> |
| 483 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 483 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 484 | ··</a> | 484 | ··</a> |
| 485 | ··<span·class="text">Starting·a·Supervisor</span> | 485 | ··<span·class="text">Starting·a·Supervisor</span> |
| 486 | </h2> | 486 | </h2> |
| 487 | <p>In·the·previous·example,·the·supervisor·is·started·by·calling | 487 | <p>In·the·previous·example,·the·supervisor·is·started·by·calling |
| 488 | <code·class="inline">ch_sup:start_link()</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">start_link</span><span·class="p"·data-group-id=" | 488 | <code·class="inline">ch_sup:start_link()</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">start_link</span><span·class="p"·data-group-id="3711631283-1">(</span><span·class="p"·data-group-id="3711631283-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 489 | ····</span><span·class="nc">supervisor</span><span·class="p">:</span><span·class="nf">start_link</span><span·class="p"·data-group-id=" | 489 | ····</span><span·class="nc">supervisor</span><span·class="p">:</span><span·class="nf">start_link</span><span·class="p"·data-group-id="3711631283-2">(</span><span·class="ss">ch_sup</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3711631283-3">[</span><span·class="p"·data-group-id="3711631283-3">]</span><span·class="p"·data-group-id="3711631283-2">)</span><span·class="p">.</span></code></pre><p><code·class="inline">ch_sup:start_link</code>·calls·function·<a·href="../../lib/stdlib-7.0/doc/html/supervisor.html#start_link/2"><code·class="inline">supervisor:start_link/2</code></a>,·which·spawns·and |
| 490 | links·to·a·new·process,·a·supervisor.</p><ul><li>The·first·argument,·<code·class="inline">ch_sup</code>,·is·the·name·of·the·callback·module,·that·is,·the | 490 | links·to·a·new·process,·a·supervisor.</p><ul><li>The·first·argument,·<code·class="inline">ch_sup</code>,·is·the·name·of·the·callback·module,·that·is,·the |
| 491 | module·where·the·<code·class="inline">init</code>·callback·function·is·located.</li><li>The·second·argument,·<code·class="inline">[]</code>,·is·a·term·that·is·passed·as·is·to·the·callback | 491 | module·where·the·<code·class="inline">init</code>·callback·function·is·located.</li><li>The·second·argument,·<code·class="inline">[]</code>,·is·a·term·that·is·passed·as·is·to·the·callback |
| 492 | function·<code·class="inline">init</code>.·Here,·<code·class="inline">init</code>·does·not·need·any·data·and·ignores·the·argument.</li></ul><p>In·this·case,·the·supervisor·is·not·registered.·Instead·its·pid·must·be·used.·A | 492 | function·<code·class="inline">init</code>.·Here,·<code·class="inline">init</code>·does·not·need·any·data·and·ignores·the·argument.</li></ul><p>In·this·case,·the·supervisor·is·not·registered.·Instead·its·pid·must·be·used.·A |
| 493 | name·can·be·specified·by·calling | 493 | name·can·be·specified·by·calling |
| 494 | <a·href="../../lib/stdlib-7.0/doc/html/supervisor.html#start_link/3"><code·class="inline">supervisor:start_link({local,·Name},·Module,·Args)</code></a> | 494 | <a·href="../../lib/stdlib-7.0/doc/html/supervisor.html#start_link/3"><code·class="inline">supervisor:start_link({local,·Name},·Module,·Args)</code></a> |
| 495 | or | 495 | or |
| 496 | <a·href="../../lib/stdlib-7.0/doc/html/supervisor.html#start_link/3"><code·class="inline">supervisor:start_link({global,·Name},·Module,·Args)</code></a>.</p><p>The·new·supervisor·process·calls·the·callback·function·<code·class="inline">ch_sup:init([])</code>.·<code·class="inline">init</code> | 496 | <a·href="../../lib/stdlib-7.0/doc/html/supervisor.html#start_link/3"><code·class="inline">supervisor:start_link({global,·Name},·Module,·Args)</code></a>.</p><p>The·new·supervisor·process·calls·the·callback·function·<code·class="inline">ch_sup:init([])</code>.·<code·class="inline">init</code> |
| 497 | has·to·return·<code·class="inline">{ok,·{SupFlags,·ChildSpecs}}</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">init</span><span·class="p"·data-group-id=" | 497 | has·to·return·<code·class="inline">{ok,·{SupFlags,·ChildSpecs}}</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">init</span><span·class="p"·data-group-id="9996729943-1">(</span><span·class="p">_</span><span·class="n">Args</span><span·class="p"·data-group-id="9996729943-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 498 | ····</span><span·class="n">SupFlags</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 498 | ····</span><span·class="n">SupFlags</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="9996729943-2">#{</span><span·class="p"·data-group-id="9996729943-2">}</span><span·class="p">,</span><span·class="w"> |
| 499 | ····</span><span·class="n">ChildSpecs</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 499 | ····</span><span·class="n">ChildSpecs</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="9996729943-3">[</span><span·class="p"·data-group-id="9996729943-4">#{</span><span·class="ss">id</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">ch3</span><span·class="p">,</span><span·class="w"> |
| 500 | ····················</span><span·class="ss">start</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id=" | 500 | ····················</span><span·class="ss">start</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="9996729943-5">{</span><span·class="ss">ch3</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">start_link</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9996729943-6">[</span><span·class="p"·data-gro[·...·truncated·by·diffoscope;·len:·70,·SHA:·6b9be35e2e28f36218d1faeabaf9e1e037fcbff7bfb2651a1d4899597933f706·...·]-5">}</span><span·class="p">,</span><span·class="w"> |
| 501 | ····················</span><span·class="ss">shutdown</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">brutal_kill</span><span·class="p"·data-group-id=" | 501 | ····················</span><span·class="ss">shutdown</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">brutal_kill</span><span·class="p"·data-group-id="9996729943-4">}</span><span·class="p"·data-group-id="9996729943-3">]</span><span·class="p">,</span><span·class="w"> |
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| 217 | ······<p·class="built-using"> | 217 | ······<p·class="built-using"> |
| 218 | ········Built·using | 218 | ········Built·using |
| 219 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 219 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 220 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 220 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 221 | ······</p> | 221 | ······</p> |
| 222 | <p>Copyright·©·1996-202 | 222 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 223 | ····</footer> | 223 | ····</footer> |
| 224 | ··</div> | 224 | ··</div> |
| 225 | </main> | 225 | </main> |
| 226 | </div> | 226 | </div> |
| 227 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 227 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 228 | ··<script> | 228 | ··<script> |
| 229 | ··let·initialized·=·false; | 229 | ··let·initialized·=·false; |
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| 266 | ······<p·class="built-using"> | 266 | ······<p·class="built-using"> |
| 267 | ········Built·using | 267 | ········Built·using |
| 268 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 268 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 269 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 269 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 270 | ······</p> | 270 | ······</p> |
| 271 | <p>Copyright·©·1996-202 | 271 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 272 | ····</footer> | 272 | ····</footer> |
| 273 | ··</div> | 273 | ··</div> |
| 274 | </main> | 274 | </main> |
| 275 | </div> | 275 | </div> |
| 276 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 276 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 277 | ··<script> | 277 | ··<script> |
| 278 | ··let·initialized·=·false; | 278 | ··let·initialized·=·false; |
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| 146 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 146 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 147 | ··</a> | 147 | ··</a> |
| 148 | ··<span·class="text">Deleting·an·Element</span> | 148 | ··<span·class="text">Deleting·an·Element</span> |
| 149 | </h3> | 149 | </h3> |
| 150 | <p>The·<code·class="inline">delete</code>·operation·is·considered·successful·if·the·element·was·not·present | 150 | <p>The·<code·class="inline">delete</code>·operation·is·considered·successful·if·the·element·was·not·present |
| 151 | in·the·table.·Hence·all·attempts·to·check·that·the·element·is·present·in·the | 151 | in·the·table.·Hence·all·attempts·to·check·that·the·element·is·present·in·the |
| 152 | Ets/Mnesia·table·before·deletion·are·unnecessary.·Here·follows·an·example·for | 152 | Ets/Mnesia·table·before·deletion·are·unnecessary.·Here·follows·an·example·for |
| 153 | Ets·tables:</p><p><strong>DO</strong></p><pre><code·class="text">ets:delete(Tab,·Key),</code></pre><p><strong>DO·NOT</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="k">case</span><span·class="w">·</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">lookup</span><span·class="p"·data-group-id=" | 153 | Ets·tables:</p><p><strong>DO</strong></p><pre><code·class="text">ets:delete(Tab,·Key),</code></pre><p><strong>DO·NOT</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="k">case</span><span·class="w">·</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">lookup</span><span·class="p"·data-group-id="8152451788-1">(</span><span·class="n">Tab</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Key</span><span·class="p"·data-group-id="8152451788-1">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 154 | ····</span><span·class="p"·data-group-id=" | 154 | ····</span><span·class="p"·data-group-id="8152451788-2">[</span><span·class="p"·data-group-id="8152451788-2">]</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 155 | ········</span><span·class="ss">ok</span><span·class="p">;</span><span·class="w"> | 155 | ········</span><span·class="ss">ok</span><span·class="p">;</span><span·class="w"> |
| 156 | ····</span><span·class="p"·data-group-id=" | 156 | ····</span><span·class="p"·data-group-id="8152451788-3">[</span><span·class="p">_</span><span·class="p">|</span><span·class="p">_</span><span·class="p"·data-group-id="8152451788-3">]</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 157 | ········</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">delete</span><span·class="p"·data-group-id=" | 157 | ········</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">delete</span><span·class="p"·data-group-id="8152451788-4">(</span><span·class="n">Tab</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Key</span><span·class="p"·data-group-id="8152451788-4">)</span><span·class="w"> |
| 158 | </span><span·class="k">end</span><span·class="p">,</span></code></pre><h3·id="fetching-data"·class="section-heading"> | 158 | </span><span·class="k">end</span><span·class="p">,</span></code></pre><h3·id="fetching-data"·class="section-heading"> |
| 159 | ··<a·href="#fetching-data"·class="hover-link"> | 159 | ··<a·href="#fetching-data"·class="hover-link"> |
| 160 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 160 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 161 | ··</a> | 161 | ··</a> |
| 162 | ··<span·class="text">Fetching·Data</span> | 162 | ··<span·class="text">Fetching·Data</span> |
| 163 | </h3> | 163 | </h3> |
| 164 | <p>Do·not·fetch·data·that·you·already·have.</p><p>Consider·that·you·have·a·module·that·handles·the·abstract·data·type·<code·class="inline">Person</code>. | 164 | <p>Do·not·fetch·data·that·you·already·have.</p><p>Consider·that·you·have·a·module·that·handles·the·abstract·data·type·<code·class="inline">Person</code>. |
| 165 | You·export·the·interface·function·<code·class="inline">print_person/1</code>,·which·uses·the·internal | 165 | You·export·the·interface·function·<code·class="inline">print_person/1</code>,·which·uses·the·internal |
| 166 | functions·<code·class="inline">print_name/1</code>,·<code·class="inline">print_age/1</code>,·and·<code·class="inline">print_occupation/1</code>.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>If·the·function·<code·class="inline">print_name/1</code>,·and·so·on,·had·been·interface·functions,·the | 166 | functions·<code·class="inline">print_name/1</code>,·<code·class="inline">print_age/1</code>,·and·<code·class="inline">print_occupation/1</code>.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>If·the·function·<code·class="inline">print_name/1</code>,·and·so·on,·had·been·interface·functions,·the |
| 167 | situation·would·have·been·different,·as·you·do·not·want·the·user·of·the | 167 | situation·would·have·been·different,·as·you·do·not·want·the·user·of·the |
| 168 | interface·to·know·about·the·internal·data·representation.</p></section><p><strong>DO</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%%%·Interface·function</span><span·class="w"> | 168 | interface·to·know·about·the·internal·data·representation.</p></section><p><strong>DO</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%%%·Interface·function</span><span·class="w"> |
| 169 | </span><span·class="nf">print_person</span><span·class="p"·data-group-id=" | 169 | </span><span·class="nf">print_person</span><span·class="p"·data-group-id="4299143986-1">(</span><span·class="n">PersonId</span><span·class="p"·data-group-id="4299143986-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 170 | ····</span><span·class="c1">%%·Look·up·the·person·in·the·named·table·person,</span><span·class="w"> | 170 | ····</span><span·class="c1">%%·Look·up·the·person·in·the·named·table·person,</span><span·class="w"> |
| 171 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">lookup</span><span·class="p"·data-group-id=" | 171 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">lookup</span><span·class="p"·data-group-id="4299143986-2">(</span><span·class="ss">person</span><span·class="p">,</span><span·class="w">·</span><span·class="n">PersonId</span><span·class="p"·data-group-id="4299143986-2">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 172 | ········</span><span·class="p"·data-group-id=" | 172 | ········</span><span·class="p"·data-group-id="4299143986-3">[</span><span·class="n">Person</span><span·class="p"·data-group-id="4299143986-3">]</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 173 | ············</span><span·class="nf">print_name</span><span·class="p"·data-group-id=" | 173 | ············</span><span·class="nf">print_name</span><span·class="p"·data-group-id="4299143986-4">(</span><span·class="n">Person</span><span·class="p"·data-group-id="4299143986-4">)</span><span·class="p">,</span><span·class="w"> |
| 174 | ············</span><span·class="nf">print_age</span><span·class="p"·data-group-id=" | 174 | ············</span><span·class="nf">print_age</span><span·class="p"·data-group-id="4299143986-5">(</span><span·class="n">Person</span><span·class="p"·data-group-id="4299143986-5">)</span><span·class="p">,</span><span·class="w"> |
| 175 | ············</span><span·class="nf">print_occupation</span><span·class="p"·data-group-id=" | 175 | ············</span><span·class="nf">print_occupation</span><span·class="p"·data-group-id="4299143986-6">(</span><span·class="n">Person</span><span·class="p"·data-group-id="4299143986-6">)</span><span·class="p">;</span><span·class="w"> |
| 176 | ········</span><span·class="p"·data-group-id=" | 176 | ········</span><span·class="p"·data-group-id="4299143986-7">[</span><span·class="p"·data-group-id="4299143986-7">]</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 177 | ············</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 177 | ············</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="4299143986-8">(</span><span·class="s">"No·person·with·ID·=·</span><span·class="si">~p</span><span·class="si">~n</span><span·class="s">"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4299143986-9">[</span><sp[·...·truncated·by·diffoscope;·len:·122,·SHA:·47216fc97877db6e2a4cb17cde063359f7bcd428d0c71249badf51a7ceb10771·...·]-8">)</span><span·class="w"> |
| 178 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> | 178 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> |
| 179 | </span><span·class="c1">%%%·Internal·functions</span><span·class="w"> | 179 | </span><span·class="c1">%%%·Internal·functions</span><span·class="w"> |
| 180 | </span><span·class="nf">print_name</span><span·class="p"·data-group-id=" | 180 | </span><span·class="nf">print_name</span><span·class="p"·data-group-id="4299143986-10">(</span><span·class="n">Person</span><span·class="p"·data-group-id="4299143986-10">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 181 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 181 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="4299143986-11">(</span><span·class="s">"No·person·</span><span·class="si">~p</span><span·class="si">~n</span><span·class="s">"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4299143986-12">[</span><span·class[·...·truncated·by·diffoscope;·len:·219,·SHA:·0c2d05a81a6921f90e8dcaee256c3fa1f3f7d39f79395ed11950e8da4e7e42b6·...·]-11">)</span><span·class="p">.</span><span·class="w"> |
| 182 | </span><span·class="nf">print_age</span><span·class="p"·data-group-id=" | 182 | </span><span·class="nf">print_age</span><span·class="p"·data-group-id="4299143986-13">(</span><span·class="n">Person</span><span·class="p"·data-group-id="4299143986-13">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 183 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 183 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="4299143986-14">(</span><span·class="s">"No·person·</span><span·class="si">~p</span><span·class="si">~n</span><span·class="s">"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4299143986-15">[</span><span·class[·...·truncated·by·diffoscope;·len:·218,·SHA:·646b27d93799d504ca98b0134c80974e6ea41b4f46372f3824fe172c470cbe97·...·]-14">)</span><span·class="p">.</span><span·class="w"> |
| 184 | </span><span·class="nf">print_occupation</span><span·class="p"·data-group-id=" | 184 | </span><span·class="nf">print_occupation</span><span·class="p"·data-group-id="4299143986-16">(</span><span·class="n">Person</span><span·class="p"·data-group-id="4299143986-16">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 185 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 185 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="4299143986-17">(</span><span·class="s">"No·person·</span><span·class="si">~p</span><span·class="si">~n</span><span·class="s">"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4299143986-18">[</span><span·class[·...·truncated·by·diffoscope;·len:·225,·SHA:·ec509757b1797c9804a7138f607b26e9a7f1d0d69d52c6c4e7ec2dec6cc4bcf3·...·]-17">)</span><span·class="p">.</span></code></pre><p><strong>DO·NOT</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%%%·Interface·function</span><span·class="w"> |
| 186 | </span><span·class="nf">print_person</span><span·class="p"·data-group-id=" | 186 | </span><span·class="nf">print_person</span><span·class="p"·data-group-id="9863373986-1">(</span><span·class="n">PersonId</span><span·class="p"·data-group-id="9863373986-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 187 | ····</span><span·class="c1">%%·Look·up·the·person·in·the·named·table·person,</span><span·class="w"> | 187 | ····</span><span·class="c1">%%·Look·up·the·person·in·the·named·table·person,</span><span·class="w"> |
| 188 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">lookup</span><span·class="p"·data-group-id=" | 188 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">lookup</span><span·class="p"·data-group-id="9863373986-2">(</span><span·class="ss">person</span><span·class="p">,</span><span·class="w">·</span><span·class="n">PersonId</span><span·class="p"·data-group-id="9863373986-2">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 189 | ········</span><span·class="p"·data-group-id=" | 189 | ········</span><span·class="p"·data-group-id="9863373986-3">[</span><span·class="n">Person</span><span·class="p"·data-group-id="9863373986-3">]</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 190 | ············</span><span·class="nf">print_name</span><span·class="p"·data-group-id=" | 190 | ············</span><span·class="nf">print_name</span><span·class="p"·data-group-id="9863373986-4">(</span><span·class="n">PersonID</span><span·class="p"·data-group-id="9863373986-4">)</span><span·class="p">,</span><span·class="w"> |
| 191 | ············</span><span·class="nf">print_age</span><span·class="p"·data-group-id=" | 191 | ············</span><span·class="nf">print_age</span><span·class="p"·data-group-id="9863373986-5">(</span><span·class="n">PersonID</span><span·class="p"·data-group-id="9863373986-5">)</span><span·class="p">,</span><span·class="w"> |
| 192 | ············</span><span·class="nf">print_occupation</span><span·class="p"·data-group-id=" | 192 | ············</span><span·class="nf">print_occupation</span><span·class="p"·data-group-id="9863373986-6">(</span><span·class="n">PersonID</span><span·class="p"·data-group-id="9863373986-6">)</span><span·class="p">;</span><span·class="w"> |
| 193 | ········</span><span·class="p"·data-group-id=" | 193 | ········</span><span·class="p"·data-group-id="9863373986-7">[</span><span·class="p"·data-group-id="9863373986-7">]</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 194 | ············</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 194 | ············</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="9863373986-8">(</span><span·class="s">"No·person·with·ID·=·</span><span·class="si">~p</span><span·class="si">~n</span><span·class="s">"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9863373986-9">[</span><sp[·...·truncated·by·diffoscope;·len:·122,·SHA:·f278fc6e48b82b95fdd6ff98362c57bbfba7d527d12cae5b2324400d84fcb23f·...·]-8">)</span><span·class="w"> |
| 195 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> | 195 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> |
| 196 | </span><span·class="c1">%%%·Internal·functions</span><span·class="w"> | 196 | </span><span·class="c1">%%%·Internal·functions</span><span·class="w"> |
| 197 | </span><span·class="nf">print_name</span><span·class="p"·data-group-id=" | 197 | </span><span·class="nf">print_name</span><span·class="p"·data-group-id="9863373986-10">(</span><span·class="n">PersonID</span><span·class="p"·data-group-id="9863373986-10">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 198 | ····</span><span·class="p"·data-group-id=" | 198 | ····</span><span·class="p"·data-group-id="9863373986-11">[</span><span·class="n">Person</span><span·class="p"·data-group-id="9863373986-11">]</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">lookup</sp[·...·truncated·by·diffoscope;·len:·207,·SHA:·aa9e73fdcbc71ff4144d44631703219ed48bb6350b6b2e30e5f9ae4a3f45d813·...·]-12">)</span><span·class="p">,</span><span·class="w"> |
| 199 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 199 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="9863373986-13">(</span><span·class="s">"No·person·</span><span·class="si">~p</span><span·class="si">~n</span><span·class="s">"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9863373986-14">[</span><span·class[·...·truncated·by·diffoscope;·len:·219,·SHA:·12a4c39edac028571c3b7306125f9207a708542e7c2979624d01e204824714a3·...·]-13">)</span><span·class="p">.</span><span·class="w"> |
| 200 | </span><span·class="nf">print_age</span><span·class="p"·data-group-id=" | 200 | </span><span·class="nf">print_age</span><span·class="p"·data-group-id="9863373986-15">(</span><span·class="n">PersonID</span><span·class="p"·data-group-id="9863373986-15">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 201 | ····</span><span·class="p"·data-group-id=" | 201 | ····</span><span·class="p"·data-group-id="9863373986-16">[</span><span·class="n">Person</span><span·class="p"·data-group-id="9863373986-16">]</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">lookup</sp[·...·truncated·by·diffoscope;·len:·207,·SHA:·f1467b43dce86c610ad3ffe553c988250a53bc0fb2738f7458c82870cdb42c83·...·]-17">)</span><span·class="p">,</span><span·class="w"> |
| 202 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 202 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="9863373986-18">(</span><span·class="s">"No·person·</span><span·class="si">~p</span><span·class="si">~n</span><span·class="s">"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9863373986-19">[</span><span·class[·...·truncated·by·diffoscope;·len:·218,·SHA:·b06ecadb2ca058c195c01438f765b129542d080e9e7c50fb27ced68b3f9795fa·...·]-18">)</span><span·class="p">.</span><span·class="w"> |
| 203 | </span><span·class="nf">print_occupation</span><span·class="p"·data-group-id=" | 203 | </span><span·class="nf">print_occupation</span><span·class="p"·data-group-id="9863373986-20">(</span><span·class="n">PersonID</span><span·class="p"·data-group-id="9863373986-20">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 204 | ····</span><span·class="p"·data-group-id=" | 204 | ····</span><span·class="p"·data-group-id="9863373986-21">[</span><span·class="n">Person</span><span·class="p"·data-group-id="9863373986-21">]</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">lookup</sp[·...·truncated·by·diffoscope;·len:·207,·SHA:·7f141f4fa23e2d61c72f9fbb30114b4f3f0eea1666b53105e91fffe4b08d4a08·...·]-22">)</span><span·class="p">,</span><span·class="w"> |
| 205 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 205 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="9863373986-23">(</span><span·class="s">"No·person·</span><span·class="si">~p</span><span·class="si">~n</span><span·class="s">"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9863373986-24">[</span><span·class[·...·truncated·by·diffoscope;·len:·225,·SHA:·440870288b07365a0831b68bbc4defcb27961fd3d5fbd58be642b8e7b967a70b·...·]-23">)</span><span·class="p">.</span></code></pre><h3·id="non-persistent-database-storage"·class="section-heading"> |
| 206 | ··<a·href="#non-persistent-database-storage"·class="hover-link"> | 206 | ··<a·href="#non-persistent-database-storage"·class="hover-link"> |
| 207 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 207 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 208 | ··</a> | 208 | ··</a> |
| 209 | ··<span·class="text">Non-Persistent·Database·Storage</span> | 209 | ··<span·class="text">Non-Persistent·Database·Storage</span> |
| 210 | </h3> | 210 | </h3> |
| 211 | <p>For·non-persistent·database·storage,·prefer·Ets·tables·over·Mnesia | 211 | <p>For·non-persistent·database·storage,·prefer·Ets·tables·over·Mnesia |
| 212 | <code·class="inline">local_content</code>·tables.·Even·the·Mnesia·<code·class="inline">dirty_write</code>·operations·carry·a·fixed | 212 | <code·class="inline">local_content</code>·tables.·Even·the·Mnesia·<code·class="inline">dirty_write</code>·operations·carry·a·fixed |
| Offset 226, 38 lines modified | Offset 226, 38 lines modified | ||
| 226 | </h3> | 226 | </h3> |
| 227 | <p>Assuming·an·Ets·table·that·uses·<code·class="inline">idno</code>·as·key·and·contains·the·following:</p><pre><code·class="text">[#person{idno·=·1,·name·=·"Adam",··age·=·31,·occupation·=·"mailman"}, | 227 | <p>Assuming·an·Ets·table·that·uses·<code·class="inline">idno</code>·as·key·and·contains·the·following:</p><pre><code·class="text">[#person{idno·=·1,·name·=·"Adam",··age·=·31,·occupation·=·"mailman"}, |
| 228 | ·#person{idno·=·2,·name·=·"Bryan",·age·=·31,·occupation·=·"cashier"}, | 228 | ·#person{idno·=·2,·name·=·"Bryan",·age·=·31,·occupation·=·"cashier"}, |
| 229 | ·#person{idno·=·3,·name·=·"Bryan",·age·=·35,·occupation·=·"banker"}, | 229 | ·#person{idno·=·3,·name·=·"Bryan",·age·=·35,·occupation·=·"banker"}, |
| 230 | ·#person{idno·=·4,·name·=·"Carl",··age·=·25,·occupation·=·"mailman"}]</code></pre><p>If·you·<em>must</em>·return·all·data·stored·in·the·Ets·table,·you·can·use | 230 | ·#person{idno·=·4,·name·=·"Carl",··age·=·25,·occupation·=·"mailman"}]</code></pre><p>If·you·<em>must</em>·return·all·data·stored·in·the·Ets·table,·you·can·use |
| 231 | <a·href="../../lib/stdlib-7.0/doc/html/ets.html#tab2list/1"><code·class="inline">ets:tab2list/1</code></a>.·However,·usually·you·are·only·interested·in·a·subset·of·the | 231 | <a·href="../../lib/stdlib-7.0/doc/html/ets.html#tab2list/1"><code·class="inline">ets:tab2list/1</code></a>.·However,·usually·you·are·only·interested·in·a·subset·of·the |
| 232 | information·in·which·case·<a·href="../../lib/stdlib-7.0/doc/html/ets.html#tab2list/1"><code·class="inline">ets:tab2list/1</code></a>·is·expensive.·If·you·only·want·to | 232 | information·in·which·case·<a·href="../../lib/stdlib-7.0/doc/html/ets.html#tab2list/1"><code·class="inline">ets:tab2list/1</code></a>·is·expensive.·If·you·only·want·to |
| 233 | extract·one·field·from·each·record,·for·example,·the·age·of·every·person,·then:</p><p><strong>DO</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">select</span><span·class="p"·data-group-id=" | 233 | extract·one·field·from·each·record,·for·example,·the·age·of·every·person,·then:</p><p><strong>DO</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">select</span><span·class="p"·data-group-id="5089861513-1">(</span><span·class="n">Tab</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="5089861513-2">[</span><span·class="p"·data-group-id="5089861513-3">{</span><span·class="o">#</span><span·class="ss">person</span>[·...·truncated·by·diffoscope;·len:·41,·SHA:·afebf556b993b7de3d4036f00202528ba12d6a79991468f10382cc85fa47ff59·...·]-4">{</span><span·class="ss">idno</span><span·class="o">=</span><span·class="ss">'_'</span><span·class="p">,</span><span·class="w"> |
| 234 | ··························</span><span·class="ss">name</span><span·class="o">=</span><span·class="ss">'_'</span><span·class="p">,</span><span·class="w"> | 234 | ··························</span><span·class="ss">name</span><span·class="o">=</span><span·class="ss">'_'</span><span·class="p">,</span><span·class="w"> |
| 235 | ··························</span><span·class="ss">age</span><span·class="o">=</span><span·class="ss">'$1'</span><span·class="p">,</span><span·class="w"> | 235 | ··························</span><span·class="ss">age</span><span·class="o">=</span><span·class="ss">'$1'</span><span·class="p">,</span><span·class="w"> |
| 236 | ··························</span><span·class="ss">occupation</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">'_'</span><span·class="p"·data-group-id=" | 236 | ··························</span><span·class="ss">occupation</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">'_'</span><span·class="p"·data-group-id="5089861513-4">}</span><span·class="p">,</span><span·class="w"> |
| 237 | ················</span><span·class="p"·data-group-id=" | 237 | ················</span><span·class="p"·data-group-id="5089861513-5">[</span><span·class="p"·data-group-id="5089861513-5">]</span><span·class="p">,</span><span·class="w"> |
| 238 | ················</span><span·class="p"·data-group-id=" | 238 | ················</span><span·class="p"·data-group-id="5089861513-6">[</span><span·class="ss">'$1'</span><span·class="p"·data-group-id="5089861513-6">]</span><span·class="p"·data-group-id="5089861513-3">}</span><span·class="p"·data-group-id="5089861513-2">]</span><span·class="p"·data-group-id="50898615[·...·truncated·by·diffoscope;·len:·434,·SHA:·79cb10c632f04c4edd9b7877d3a4938ac5bbe1bd1b89501ac07abdb41b313721·...·]-1">)</span><span·class="p">,</span><span·class="w"> |
| 239 | </span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">map</span><span·class="p"·data-group-id=" | 239 | </span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">map</span><span·class="p"·data-group-id="2964976402-2">(</span><span·class="nf">fun</span><span·class="p"·data-group-id="2964976402-3">(</span><span·class="n">X</span><span·class="p"·data-group-id="2964976402-3">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><[·...·truncated·by·diffoscope;·len:·919,·SHA:·4e47b93dbf64e4fb72f1b9d948a5da4a92158fee596363db66c6e39b0d91edac·...·]-4">{</span><span·class="ss">idno</span><span·class="o">=</span><span·class="ss">'_'</span><span·class="p">,</span><span·class="w"> |
| 240 | ··························</span><span·class="ss">name</span><span·class="o">=</span><span·class="s">"Bryan"</span><span·class="p">,</span><span·class="w"> | 240 | ··························</span><span·class="ss">name</span><span·class="o">=</span><span·class="s">"Bryan"</span><span·class="p">,</span><span·class="w"> |
| 241 | ··························</span><span·class="ss">age</span><span·class="o">=</span><span·class="ss">'$1'</span><span·class="p">,</span><span·class="w"> | 241 | ··························</span><span·class="ss">age</span><span·class="o">=</span><span·class="ss">'$1'</span><span·class="p">,</span><span·class="w"> |
| 242 | ··························</span><span·class="ss">occupation</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">'_'</span><span·class="p"·data-group-id=" | 242 | ··························</span><span·class="ss">occupation</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">'_'</span><span·class="p"·data-group-id="0098960303-4">}</span><span·class="p">,</span><span·class="w"> |
| 243 | ················</span><span·class="p"·data-group-id=" | 243 | ················</span><span·class="p"·data-group-id="0098960303-5">[</span><span·class="p"·data-group-id="0098960303-5">]</span><span·class="p">,</span><span·class="w"> |
| 244 | ················</span><span·class="p"·data-group-id=" | 244 | ················</span><span·class="p"·data-group-id="0098960303-6">[</span><span·class="ss">'$1'</span><span·class="p"·data-group-id="0098960303-6">]</span><span·class="p"·data-group-id="0098960303-3">}</span><span·class="p"·data-group-id="0098960303-2">]</span><span·class="p"·data-group-id="00989603[·...·truncated·by·diffoscope;·len:·410,·SHA:·2354399ce9a2a9bdc7cf99b4a1191b31873b8262248470baf21c5f4afcb4d0ef·...·]-1">)</span><span·class="p">,</span><span·class="w"> |
| 245 | </span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">foldl</span><span·class="p"·data-group-id=" | 245 | </span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">foldl</span><span·class="p"·data-group-id="9336821258-2">(</span><span·class="nf">fun</span><span·class="p"·data-group-id="9336821258-3">(</span><span·class="n">X</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Acc</span><span·class="p"·data-group-id="9336821258-3">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="k">case</span><span·class="w">·</span><span·class="n">X</span><span·class="o">#</span><span·class="ss">person</span><span·class="p">.</span><span·class="ss">name</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 246 | ································</span><span·class="s">"Bryan"</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 246 | ································</span><span·class="s">"Bryan"</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 247 | ····································</span><span·class="p"·data-group-id=" | 247 | ····································</span><span·class="p"·data-group-id="9336821258-4">[</span><span·class="n">X</span><span·class="o">#</span><span·class="ss">person</span><span·class="p">.</span><span·class="ss">age</span><span·class="p">|</span><span·class="n">Acc</span><span·class="p"·data-group-id="9336821258-4">]</span><span·class="p">;</span><span·class="w"> |
| 248 | ·································</span><span·class="p">_</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 248 | ·································</span><span·class="p">_</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 249 | ·····································</span><span·class="n">Acc</span><span·class="w"> | 249 | ·····································</span><span·class="n">Acc</span><span·class="w"> |
| 250 | ···························</span><span·class="k">end</span><span·class="w"> | 250 | ···························</span><span·class="k">end</span><span·class="w"> |
| 251 | ·············</span><span·class="k">end</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id=" | 251 | ·············</span><span·class="k">end</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9336821258-5">[</span><span·class="p"·data-group-id="9336821258-5">]</span><span·class="p">,</span><span·class="w">·</span><span·class="n">TabList</span><span·class="p"·data-group-id="9336821258-2">)</span></code></pre><p>If·you·need·all·information·stored·in·the·Ets·table·about·persons·named·"Bryan", |
| 252 | then:</p><p><strong>DO</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">select</span><span·class="p"·data-group-id=" | 252 | then:</p><p><strong>DO</strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">select</span><span·class="p"·data-group-id="3632344242-1">(</span><span·class="n">Tab</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3632344242-2">[</span><span·class="p"·data-group-id="3632344242-3">{</span><span·class="o">#</span><span·class="ss">person</span>[·...·truncated·by·diffoscope;·len:·41,·SHA:·6be12c5209544d8338dabc99d8aab3fb7dfae614f104f9924be54224ef67d0bb·...·]-4">{</span><span·class="ss">idno</span><span·class="o">=</span><span·class="ss">'_'</span><span·class="p">,</span><span·class="w"> |
| 253 | ··························</span><span·class="ss">name</span><span·class="o">=</span><span·class="s">"Bryan"</span><span·class="p">,</span><span·class="w"> | 253 | ··························</span><span·class="ss">name</span><span·class="o">=</span><span·class="s">"Bryan"</span><span·class="p">,</span><span·class="w"> |
| 254 | ··························</span><span·class="ss">age</span><span·class="o">=</span><span·class="ss">'_'</span><span·class="p">,</span><span·class="w"> | 254 | ··························</span><span·class="ss">age</span><span·class="o">=</span><span·class="ss">'_'</span><span·class="p">,</span><span·class="w"> |
| 255 | ··························</span><span·class="ss">occupation</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">'_'</span><span·class="p"·data-group-id=" | 255 | ··························</span><span·class="ss">occupation</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">'_'</span><span·class="p"·data-group-id="3632344242-4">}</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3632344242-5">[</span><span·class="p"·data-group-id="3632344242-5">]</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3[·...·truncated·by·diffoscope;·len:·689,·SHA:·a7a8a9a614189bd61a818ea30030012bc43e583911f59d82d21a5bf960b73891·...·]-1">)</span><span·class="p">,</span><span·class="w"> |
| 256 | </span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">filter</span><span·class="p"·data-group-id=" | 256 | </span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">filter</span><span·class="p"·data-group-id="5111282236-2">(</span><span·class="nf">fun</span><span·class="p"·data-group-id="5111282236-3">(</span><span·class="n">X</span><span·class="p"·data-group-id="5111282236-3">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><[·...·truncated·by·diffoscope;·len:·411,·SHA:·48228668e4720853a9d5c65b38c08ef2997a2cbe3fd9bcc00f3d077fddd00a1d·...·]-2">)</span><span·class="p">,</span></code></pre><h3·id="ordered_set-tables"·class="section-heading"> |
| 257 | ··<a·href="#ordered_set-tables"·class="hover-link"> | 257 | ··<a·href="#ordered_set-tables"·class="hover-link"> |
| 258 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 258 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 259 | ··</a> | 259 | ··</a> |
| 260 | ··<span·class="text"><code·class="inline">ordered_set</code>·Tables</span> | 260 | ··<span·class="text"><code·class="inline">ordered_set</code>·Tables</span> |
| 261 | </h3> | 261 | </h3> |
| 262 | <p>If·the·data·in·the·table·is·to·be·accessed·so·that·the·order·of·the·keys·in·the | 262 | <p>If·the·data·in·the·table·is·to·be·accessed·so·that·the·order·of·the·keys·in·the |
| 263 | table·is·significant,·the·table·type·<code·class="inline">ordered_set</code>·can·be·used·instead·of·the | 263 | table·is·significant,·the·table·type·<code·class="inline">ordered_set</code>·can·be·used·instead·of·the |
| Offset 293, 20 lines modified | Offset 293, 20 lines modified | ||
| 293 | Clearly,·the·second·table·would·have·to·be·kept·consistent·with·the·master | 293 | Clearly,·the·second·table·would·have·to·be·kept·consistent·with·the·master |
| 294 | table.·Mnesia·can·do·this·for·you,·but·a·home-brew·index·table·can·be·very | 294 | table.·Mnesia·can·do·this·for·you,·but·a·home-brew·index·table·can·be·very |
| 295 | efficient·compared·to·the·overhead·involved·in·using·Mnesia.</p><p>An·index·table·for·the·table·in·the·previous·examples·would·have·to·be·a·bag·(as | 295 | efficient·compared·to·the·overhead·involved·in·using·Mnesia.</p><p>An·index·table·for·the·table·in·the·previous·examples·would·have·to·be·a·bag·(as |
| 296 | keys·would·appear·more·than·once)·and·can·have·the·following·contents:</p><pre><code·class="text">[#index_entry{name="Adam",·idno=1}, | 296 | keys·would·appear·more·than·once)·and·can·have·the·following·contents:</p><pre><code·class="text">[#index_entry{name="Adam",·idno=1}, |
| 297 | ·#index_entry{name="Bryan",·idno=2}, | 297 | ·#index_entry{name="Bryan",·idno=2}, |
| 298 | ·#index_entry{name="Bryan",·idno=3}, | 298 | ·#index_entry{name="Bryan",·idno=3}, |
| 299 | ·#index_entry{name="Carl",·idno=4}]</code></pre><p>Given·this·index·table,·a·lookup·of·the·<code·class="inline">age</code>·fields·for·all·persons·named | 299 | ·#index_entry{name="Carl",·idno=4}]</code></pre><p>Given·this·index·table,·a·lookup·of·the·<code·class="inline">age</code>·fields·for·all·persons·named |
| 300 | "Bryan"·can·be·done·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">MatchingIDs</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">lookup</span><span·class="p"·data-group-id=" | 300 | "Bryan"·can·be·done·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">MatchingIDs</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">lookup</span><span·class="p"·data-group-id="0063259801-1">(</span><span·class="n">IndexTable</span><span·class="p">,</span><span·class="s">"Bryan"</span><span·class="p"·data-group-id="0063259801-1">)</span><span·class="p">,</span><span·class="w"> |
| 301 | </span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">map</span><span·class="p"·data-group-id=" | 301 | </span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">map</span><span·class="p"·data-group-id="0063259801-2">(</span><span·class="nf">fun</span><span·class="p"·data-group-id="0063259801-3">(</span><span·class="o">#</span><span·class="ss">index_entry</span><span·class="p"·data-group-id="0063259801-4">{</span><span·class="ss">idno</span><span·class="w[·...·truncated·by·diffoscope;·len:·177,·SHA:·2c5e98b134bb954e13588ab3d102a78017a34710af75081dd2ed5524d70386ca·...·]-3">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 302 | ·················</span><span·class="p"·data-group-id=" | 302 | ·················</span><span·class="p"·data-group-id="0063259801-5">[</span><span·class="o">#</span><span·class="ss">person</span><span·class="p"·data-group-id="0063259801-6">{</span><span·class="ss">age</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">Age</span><s[·...·truncated·by·diffoscope;·len:·458,·SHA:·e0b241d877e522eb6a79dd10722a5c41cf1d91828aaa1a736925efe006e4a6df·...·]-7">)</span><span·class="p">,</span><span·class="w"> |
| 303 | ·················</span><span·class="n">Age</span><span·class="w"> | 303 | ·················</span><span·class="n">Age</span><span·class="w"> |
| 304 | ··········</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> | 304 | ··········</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> |
| 305 | ··········</span><span·class="n">MatchingIDs</span><span·class="p"·data-group-id=" | 305 | ··········</span><span·class="n">MatchingIDs</span><span·class="p"·data-group-id="0063259801-2">)</span><span·class="p">,</span></code></pre><p>Notice·that·this·code·does·not·use·<a·href="../../lib/stdlib-7.0/doc/html/ets.html#match/2"><code·class="inline">ets:match/2</code></a>,·but·instead·uses·the |
| 306 | <a·href="../../lib/stdlib-7.0/doc/html/ets.html#lookup/2"><code·class="inline">ets:lookup/2</code></a>·call.·The·<a·href="../../lib/stdlib-7.0/doc/html/lists.html#map/2"><code·class="inline">lists:map/2</code></a>·call·is·only·used·to·traverse·the·<code·class="inline">idno</code>s | 306 | <a·href="../../lib/stdlib-7.0/doc/html/ets.html#lookup/2"><code·class="inline">ets:lookup/2</code></a>·call.·The·<a·href="../../lib/stdlib-7.0/doc/html/lists.html#map/2"><code·class="inline">lists:map/2</code></a>·call·is·only·used·to·traverse·the·<code·class="inline">idno</code>s |
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| 184 | ······<p·class="built-using"> | 184 | ······<p·class="built-using"> |
| 185 | ········Built·using | 185 | ········Built·using |
| 186 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 186 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 187 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 187 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 188 | ······</p> | 188 | ······</p> |
| 189 | <p>Copyright·©·1996-202 | 189 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 190 | ····</footer> | 190 | ····</footer> |
| 191 | ··</div> | 191 | ··</div> |
| 192 | </main> | 192 | </main> |
| 193 | </div> | 193 | </div> |
| 194 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 194 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 195 | ··<script> | 195 | ··<script> |
| 196 | ··let·initialized·=·false; | 196 | ··let·initialized·=·false; |
| Offset 238, 128 lines modified | Offset 238, 128 lines modified | ||
| 238 | and·optional·<code·class="inline">(=>)</code>·association·types.·If·an·association·type·is·mandatory,·an | 238 | and·optional·<code·class="inline">(=>)</code>·association·types.·If·an·association·type·is·mandatory,·an |
| 239 | association·with·that·type·needs·to·be·present.·In·the·case·of·an·optional | 239 | association·with·that·type·needs·to·be·present.·In·the·case·of·an·optional |
| 240 | association·type·it·is·not·required·for·the·key·type·to·be·present.</p><p>The·notation·<code·class="inline">#{}</code>·specifies·the·singleton·type·for·the·empty·map.·Note·that | 240 | association·type·it·is·not·required·for·the·key·type·to·be·present.</p><p>The·notation·<code·class="inline">#{}</code>·specifies·the·singleton·type·for·the·empty·map.·Note·that |
| 241 | this·notation·is·not·a·shorthand·for·the·<a·href="../../erts-16.0/doc/html/erlang.html#t:map/0"><code·class="inline">map/0</code></a>·type.</p><p>For·convenience,·the·following·types·are·also·built-in.·They·can·be·thought·as | 241 | this·notation·is·not·a·shorthand·for·the·<a·href="../../erts-16.0/doc/html/erlang.html#t:map/0"><code·class="inline">map/0</code></a>·type.</p><p>For·convenience,·the·following·types·are·also·built-in.·They·can·be·thought·as |
| 242 | predefined·aliases·for·the·type·unions·also·shown·in·the·table.</p><p><a·href=""·id="builtin_types"></a></p><table><thead><tr><th·style="text-align:·left;">Built-in·type</th><th·style="text-align:·left;">Defined·as</th></tr></thead><tbody><tr><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:term/0"><code·class="inline">term/0</code></a></td><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:any/0"><code·class="inline">any/0</code></a></td></tr><tr><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:binary/0"><code·class="inline">binary/0</code></a></td><td·style="text-align:·left;"><code·class="inline"><<_:_*8>></code></td></tr><tr><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:nonempty_binary/0"><code·class="inline">nonempty_binary/0</code></a></td><td·style="text-align:·left;"><code·class="inline"><<_:8,·_:_*8>></code></td></tr><tr><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:bitstring/0"><code·class="inline">bitstring/0</code></a></td><td·style="text-align:·left;"><code·class="inline"><<_:_*1>></code></td></tr><tr><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:nonempty_bitstring/0"><code·class="inline">nonempty_bitstring/0</code></a></td><td·style="text-align:·left;"><code·class="inline"><<_:1,·_:_*1>></code></td></tr><tr><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:boolean/0"><code·class="inline">boolean/0</code></a></td><td·style="text-align:·left;"><code·class="inline">'false'</code>·|·<code·class="inline">'true'</code></td></tr><tr><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:byte/0"><code·class="inline">byte/0</code></a></td><td·style="text-align:·left;"><code·class="inline">0..255</code></td></tr><tr><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:char/0"><code·class="inline">char/0</code></a></td><td·style="text-align:·left;"><code·class="inline">0..16#10ffff</code></td></tr><tr><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:nil/0"><code·class="inline">nil/0</code></a></td><td·style="text-align:·left;"><code·class="inline">[]</code></td></tr><tr><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:number/0"><code·class="inline">number/0</code></a></td><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:integer/0"><code·class="inline">integer/0</code></a>·|·<a·href="../../erts-16.0/doc/html/erlang.html#t:float/0"><code·class="inline">float/0</code></a></td></tr><tr><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:list/0"><code·class="inline">list/0</code></a></td><td·style="text-align:·left;"><code·class="inline">[any()]</code></td></tr><tr><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:maybe_improper_list/0"><code·class="inline">maybe_improper_list/0</code></a></td><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:maybe_improper_list/2"><code·class="inline">maybe_improper_list(any(),·any())</code></a></td></tr><tr><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:nonempty_list/0"><code·class="inline">nonempty_list/0</code></a></td><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:nonempty_list/1"><code·class="inline">nonempty_list(any())</code></a></td></tr><tr><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:string/0"><code·class="inline">string/0</code></a></td><td·style="text-align:·left;"><code·class="inline">[char()]</code></td></tr><tr><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:nonempty_string/0"><code·class="inline">nonempty_string/0</code></a></td><td·style="text-align:·left;"><code·class="inline">[char(),...]</code></td></tr><tr><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:iodata/0"><code·class="inline">iodata/0</code></a></td><td·style="text-align:·left;"><code·class="inline">iolist()</code>·|·<code·class="inline">binary()</code></td></tr><tr><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:iolist/0"><code·class="inline">iolist/0</code></a></td><td·style="text-align:·left;"><code·class="inline">maybe_improper_list(byte()</code>·|·<code·class="inline">binary()</code>·|·<code·class="inline">iolist(),·binary()</code>·|·<code·class="inline">[])</code></td></tr><tr><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:map/0"><code·class="inline">map/0</code></a></td><td·style="text-align:·left;"><code·class="inline">#{any()·=>·any()}</code></td></tr><tr><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:function/0"><code·class="inline">function/0</code></a></td><td·style="text-align:·left;"><code·class="inline">fun()</code></td></tr><tr><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:module/0"><code·class="inline">module/0</code></a></td><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:atom/0"><code·class="inline">atom/0</code></a></td></tr><tr><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:mfa/0"><code·class="inline">mfa/0</code></a></td><td·style="text-align:·left;"><code·class="inline">{module(),atom(),arity()}</code></td></tr><tr><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:arity/0"><code·class="inline">arity/0</code></a></td><td·style="text-align:·left;"><code·class="inline">0..255</code></td></tr><tr><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:identifier/0"><code·class="inline">identifier/0</code></a></td><td·style="text-align:·left;"><code·class="inline">pid()</code>·|·<code·class="inline">port()</code>·|·<code·class="inline">reference()</code></td></tr><tr><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#node/0"><code·class="inline">node/0</code></a></td><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:atom/0"><code·class="inline">atom/0</code></a></td></tr><tr><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:timeout/0"><code·class="inline">timeout/0</code></a></td><td·style="text-align:·left;"><code·class="inline">'infinity'</code>·|·<code·class="inline">non_neg_integer()</code></td></tr><tr><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:no_return/0"><code·class="inline">no_return/0</code></a></td><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:none/0"><code·class="inline">none/0</code></a></td></tr></tbody></table><p><em>Table:·Built-in·types,·predefined·aliases</em></p><p>In·addition,·the·following·three·built-in·types·exist·and·can·be·thought·as | 242 | predefined·aliases·for·the·type·unions·also·shown·in·the·table.</p><p><a·href=""·id="builtin_types"></a></p><table><thead><tr><th·style="text-align:·left;">Built-in·type</th><th·style="text-align:·left;">Defined·as</th></tr></thead><tbody><tr><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:term/0"><code·class="inline">term/0</code></a></td><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:any/0"><code·class="inline">any/0</code></a></td></tr><tr><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:binary/0"><code·class="inline">binary/0</code></a></td><td·style="text-align:·left;"><code·class="inline"><<_:_*8>></code></td></tr><tr><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:nonempty_binary/0"><code·class="inline">nonempty_binary/0</code></a></td><td·style="text-align:·left;"><code·class="inline"><<_:8,·_:_*8>></code></td></tr><tr><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:bitstring/0"><code·class="inline">bitstring/0</code></a></td><td·style="text-align:·left;"><code·class="inline"><<_:_*1>></code></td></tr><tr><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:nonempty_bitstring/0"><code·class="inline">nonempty_bitstring/0</code></a></td><td·style="text-align:·left;"><code·class="inline"><<_:1,·_:_*1>></code></td></tr><tr><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:boolean/0"><code·class="inline">boolean/0</code></a></td><td·style="text-align:·left;"><code·class="inline">'false'</code>·|·<code·class="inline">'true'</code></td></tr><tr><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:byte/0"><code·class="inline">byte/0</code></a></td><td·style="text-align:·left;"><code·class="inline">0..255</code></td></tr><tr><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:char/0"><code·class="inline">char/0</code></a></td><td·style="text-align:·left;"><code·class="inline">0..16#10ffff</code></td></tr><tr><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:nil/0"><code·class="inline">nil/0</code></a></td><td·style="text-align:·left;"><code·class="inline">[]</code></td></tr><tr><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:number/0"><code·class="inline">number/0</code></a></td><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:integer/0"><code·class="inline">integer/0</code></a>·|·<a·href="../../erts-16.0/doc/html/erlang.html#t:float/0"><code·class="inline">float/0</code></a></td></tr><tr><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:list/0"><code·class="inline">list/0</code></a></td><td·style="text-align:·left;"><code·class="inline">[any()]</code></td></tr><tr><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:maybe_improper_list/0"><code·class="inline">maybe_improper_list/0</code></a></td><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:maybe_improper_list/2"><code·class="inline">maybe_improper_list(any(),·any())</code></a></td></tr><tr><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:nonempty_list/0"><code·class="inline">nonempty_list/0</code></a></td><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:nonempty_list/1"><code·class="inline">nonempty_list(any())</code></a></td></tr><tr><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:string/0"><code·class="inline">string/0</code></a></td><td·style="text-align:·left;"><code·class="inline">[char()]</code></td></tr><tr><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:nonempty_string/0"><code·class="inline">nonempty_string/0</code></a></td><td·style="text-align:·left;"><code·class="inline">[char(),...]</code></td></tr><tr><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:iodata/0"><code·class="inline">iodata/0</code></a></td><td·style="text-align:·left;"><code·class="inline">iolist()</code>·|·<code·class="inline">binary()</code></td></tr><tr><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:iolist/0"><code·class="inline">iolist/0</code></a></td><td·style="text-align:·left;"><code·class="inline">maybe_improper_list(byte()</code>·|·<code·class="inline">binary()</code>·|·<code·class="inline">iolist(),·binary()</code>·|·<code·class="inline">[])</code></td></tr><tr><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:map/0"><code·class="inline">map/0</code></a></td><td·style="text-align:·left;"><code·class="inline">#{any()·=>·any()}</code></td></tr><tr><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:function/0"><code·class="inline">function/0</code></a></td><td·style="text-align:·left;"><code·class="inline">fun()</code></td></tr><tr><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:module/0"><code·class="inline">module/0</code></a></td><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:atom/0"><code·class="inline">atom/0</code></a></td></tr><tr><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:mfa/0"><code·class="inline">mfa/0</code></a></td><td·style="text-align:·left;"><code·class="inline">{module(),atom(),arity()}</code></td></tr><tr><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:arity/0"><code·class="inline">arity/0</code></a></td><td·style="text-align:·left;"><code·class="inline">0..255</code></td></tr><tr><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:identifier/0"><code·class="inline">identifier/0</code></a></td><td·style="text-align:·left;"><code·class="inline">pid()</code>·|·<code·class="inline">port()</code>·|·<code·class="inline">reference()</code></td></tr><tr><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#node/0"><code·class="inline">node/0</code></a></td><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:atom/0"><code·class="inline">atom/0</code></a></td></tr><tr><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:timeout/0"><code·class="inline">timeout/0</code></a></td><td·style="text-align:·left;"><code·class="inline">'infinity'</code>·|·<code·class="inline">non_neg_integer()</code></td></tr><tr><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:no_return/0"><code·class="inline">no_return/0</code></a></td><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:none/0"><code·class="inline">none/0</code></a></td></tr></tbody></table><p><em>Table:·Built-in·types,·predefined·aliases</em></p><p>In·addition,·the·following·three·built-in·types·exist·and·can·be·thought·as |
| 243 | defined·below,·though·strictly·their·"type·definition"·is·not·valid·syntax | 243 | defined·below,·though·strictly·their·"type·definition"·is·not·valid·syntax |
| 244 | according·to·the·type·language·defined·above.</p><table><thead><tr><th·style="text-align:·left;">Built-in·type</th><th·style="text-align:·left;">Can·be·thought·defined·by·the·syntax</th></tr></thead><tbody><tr><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:non_neg_integer/0"><code·class="inline">non_neg_integer/0</code></a></td><td·style="text-align:·left;"><code·class="inline">0..</code></td></tr><tr><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:pos_integer/0"><code·class="inline">pos_integer/0</code></a></td><td·style="text-align:·left;"><code·class="inline">1..</code></td></tr><tr><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:neg_integer/0"><code·class="inline">neg_integer/0</code></a></td><td·style="text-align:·left;"><code·class="inline">..-1</code></td></tr></tbody></table><p><em>Table:·Additional·built-in·types</em></p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>The·following·built-in·list·types·also·exist,·but·they·are·expected·to·be | 244 | according·to·the·type·language·defined·above.</p><table><thead><tr><th·style="text-align:·left;">Built-in·type</th><th·style="text-align:·left;">Can·be·thought·defined·by·the·syntax</th></tr></thead><tbody><tr><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:non_neg_integer/0"><code·class="inline">non_neg_integer/0</code></a></td><td·style="text-align:·left;"><code·class="inline">0..</code></td></tr><tr><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:pos_integer/0"><code·class="inline">pos_integer/0</code></a></td><td·style="text-align:·left;"><code·class="inline">1..</code></td></tr><tr><td·style="text-align:·left;"><a·href="../../erts-16.0/doc/html/erlang.html#t:neg_integer/0"><code·class="inline">neg_integer/0</code></a></td><td·style="text-align:·left;"><code·class="inline">..-1</code></td></tr></tbody></table><p><em>Table:·Additional·built-in·types</em></p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>The·following·built-in·list·types·also·exist,·but·they·are·expected·to·be |
| 245 | rarely·used.·Hence,·they·have·long·names:</p></section><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">nonempty_maybe_improper_list</span><span·class="p"·data-group-id=" | 245 | rarely·used.·Hence,·they·have·long·names:</p></section><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">nonempty_maybe_improper_list</span><span·class="p"·data-group-id="8101475976-1">(</span><span·class="p"·data-group-id="8101475976-1">)</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">nonempty_maybe_improper_list</span><span·class="p"·data-group-id="81[·...·truncated·by·diffoscope;·len:·374,·SHA:·6e170e3c9881f46180ac061a54a187d4418e0fdf0c8b0aaf00cde71df8f3ae14·...·]6-2">)</span><span·class="w"> |
| 246 | </span><span·class="nf">nonempty_improper_list</span><span·class="p"·data-group-id=" | 246 | </span><span·class="nf">nonempty_improper_list</span><span·class="p"·data-group-id="8101475976-5">(</span><span·class="n">Type1</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Type2</span><span·class="p"·data-group-id="8101475976-5">)</span><span·class="w"> |
| 247 | </span><span·class="nf">nonempty_maybe_improper_list</span><span·class="p"·data-group-id=" | 247 | </span><span·class="nf">nonempty_maybe_improper_list</span><span·class="p"·data-group-id="8101475976-6">(</span><span·class="n">Type1</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Type2</span><span·class="p"·data-group-id="8101475976-6">)</span></code></pre><p>where·the·last·two·types·define·the·set·of·Erlang·terms·one·would·expect.</p><p>Also·for·convenience,·record·notation·is·allowed·to·be·used.·Records·are |
| 248 | shorthands·for·the·corresponding·tuples:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Record</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="p">#</span><span·class="n">Erlang_Atom</span><span·class="p"·data-group-id=" | 248 | shorthands·for·the·corresponding·tuples:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Record</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="p">#</span><span·class="n">Erlang_Atom</span><span·class="p"·data-group-id="0295677097-1">{</span><span·class="p"·data-group-id="0295677097-1">}</span><span·class="w"> |
| 249 | ········</span><span·class="p">|</span><span·class="w">·</span><span·class="p">#</span><span·class="n">Erlang_Atom</span><span·class="p"·data-group-id=" | 249 | ········</span><span·class="p">|</span><span·class="w">·</span><span·class="p">#</span><span·class="n">Erlang_Atom</span><span·class="p"·data-group-id="0295677097-2">{</span><span·class="n">Fields</span><span·class="p"·data-group-id="0295677097-2">}</span></code></pre><p>Records·are·extended·to·possibly·contain·type·information.·This·is·described·in |
| 250 | <a·href="typespec.html#typeinrecords">Type·Information·in·Record·Declarations</a>.</p><h3·id="redefining-built-in-types"·class="section-heading"> | 250 | <a·href="typespec.html#typeinrecords">Type·Information·in·Record·Declarations</a>.</p><h3·id="redefining-built-in-types"·class="section-heading"> |
| 251 | ··<a·href="#redefining-built-in-types"·class="hover-link"> | 251 | ··<a·href="#redefining-built-in-types"·class="hover-link"> |
| 252 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 252 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 253 | ··</a> | 253 | ··</a> |
| 254 | ··<span·class="text">Redefining·built-in·types</span> | 254 | ··<span·class="text">Redefining·built-in·types</span> |
| 255 | </h3> | 255 | </h3> |
| 256 | <section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Change</h4><p>Starting·from·Erlang/OTP·26,·it·is·permitted·to·define·a·type·having·the·same | 256 | <section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Change</h4><p>Starting·from·Erlang/OTP·26,·it·is·permitted·to·define·a·type·having·the·same |
| 257 | name·as·a·built-in·type.</p></section><p>It·is·recommended·to·avoid·deliberately·reusing·built-in·names·because·it·can·be | 257 | name·as·a·built-in·type.</p></section><p>It·is·recommended·to·avoid·deliberately·reusing·built-in·names·because·it·can·be |
| 258 | confusing.·However,·when·an·Erlang/OTP·release·introduces·a·new·type,·code·that | 258 | confusing.·However,·when·an·Erlang/OTP·release·introduces·a·new·type,·code·that |
| 259 | happened·to·define·its·own·type·having·the·same·name·will·continue·to·work.</p><p>As·an·example,·imagine·that·the·Erlang/OTP·42·release·introduces·a·new·type | 259 | happened·to·define·its·own·type·having·the·same·name·will·continue·to·work.</p><p>As·an·example,·imagine·that·the·Erlang/OTP·42·release·introduces·a·new·type |
| 260 | <code·class="inline">gadget()</code>·defined·like·this:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">type</span><span·class="w">·</span><span·class="nf">gadget</span><span·class="p"·data-group-id=" | 260 | <code·class="inline">gadget()</code>·defined·like·this:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">type</span><span·class="w">·</span><span·class="nf">gadget</span><span·class="p"·data-group-id="6470978826-1">(</span><span·class="p"·data-group-id="6470978826-1">)</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id="6470978826-2">{</span><span·class="ss">'gadget'[·...·truncated·by·diffoscope;·len:·236,·SHA:·885ce248adf8f2359551b9d32280b9c2ee75aa711aad50cef7f1aaff02ffec3d·...·]-2">}</span><span·class="p">.</span></code></pre><p>Further·imagine·that·some·code·has·its·own·(different)·definition·of·<code·class="inline">gadget()</code>, |
| 261 | for·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">type</span><span·class="w">·</span><span·class="nf">gadget</span><span·class="p"·data-group-id=" | 261 | for·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">type</span><span·class="w">·</span><span·class="nf">gadget</span><span·class="p"·data-group-id="3809377780-1">(</span><span·class="p"·data-group-id="3809377780-1">)</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id="3809377780-2">#{</span><span·class="p"·data-group-id="[·...·truncated·by·diffoscope;·len:·10,·SHA:·b3fa9b724b4b973adc5612d81d1c1700b9fc47bcb113723404e6a85dc255b6f7·...·]-2">}</span><span·class="p">.</span></code></pre><p>Since·redefinitions·are·allowed,·the·code·will·still·compile·(but·with·a |
| 262 | warning),·and·Dialyzer·will·not·emit·any·additional·warnings.</p><h2·id="type-declarations-of-user-defined-types"·class="section-heading"> | 262 | warning),·and·Dialyzer·will·not·emit·any·additional·warnings.</p><h2·id="type-declarations-of-user-defined-types"·class="section-heading"> |
| 263 | ··<a·href="#type-declarations-of-user-defined-types"·class="hover-link"> | 263 | ··<a·href="#type-declarations-of-user-defined-types"·class="hover-link"> |
| 264 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 264 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 265 | ··</a> | 265 | ··</a> |
| 266 | ··<span·class="text">Type·Declarations·of·User-Defined·Types</span> | 266 | ··<span·class="text">Type·Declarations·of·User-Defined·Types</span> |
| 267 | </h2> | 267 | </h2> |
| 268 | <p>As·seen,·the·basic·syntax·of·a·type·is·an·atom·followed·by·closed·parentheses. | 268 | <p>As·seen,·the·basic·syntax·of·a·type·is·an·atom·followed·by·closed·parentheses. |
| 269 | New·types·are·declared·using·<code·class="inline">-type</code>,·<a·href="opaques.html"><code·class="inline">-opaque</code></a>,·and | 269 | New·types·are·declared·using·<code·class="inline">-type</code>,·<a·href="opaques.html"><code·class="inline">-opaque</code></a>,·and |
| 270 | <a·href="nominals.html"><code·class="inline">-nominal</code></a>·attributes·as·in·the·following·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">type</span><span·class="w">·</span><span·class="nf">my_struct_type</span><span·class="p"·data-group-id=" | 270 | <a·href="nominals.html"><code·class="inline">-nominal</code></a>·attributes·as·in·the·following·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">type</span><span·class="w">·</span><span·class="nf">my_struct_type</span><span·class="p"·data-group-id="7390294079-1">(</span><span·class="p"·data-group-id="7390294079-1">)</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="n">Type</span><span·class="p">.</span><span·class="w"> |
| 271 | </span><span·class="p">-</span><span·class="na">opaque</span><span·class="w">·</span><span·class="nf">my_opaq_type</span><span·class="p"·data-group-id=" | 271 | </span><span·class="p">-</span><span·class="na">opaque</span><span·class="w">·</span><span·class="nf">my_opaq_type</span><span·class="p"·data-group-id="7390294079-2">(</span><span·class="p"·data-group-id="7390294079-2">)</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="n">Type</span><span·class="p">.</span><span·class="w"> |
| 272 | </span><span·class="p">-</span><span·class="na">nominal</span><span·class="w">·</span><span·class="nf">my_nominal_type</span><span·class="p"·data-group-id=" | 272 | </span><span·class="p">-</span><span·class="na">nominal</span><span·class="w">·</span><span·class="nf">my_nominal_type</span><span·class="p"·data-group-id="7390294079-3">(</span><span·class="p"·data-group-id="7390294079-3">)</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="n">Type</span><span·class="p">.</span></code></pre><p>The·type·name·is·the·atom·<code·class="inline">my_struct_type</code>,·followed·by·parentheses.·<code·class="inline">Type</code>·is·a |
| 273 | type·as·defined·in·the·previous·section.·A·current·restriction·is·that·<code·class="inline">Type</code> | 273 | type·as·defined·in·the·previous·section.·A·current·restriction·is·that·<code·class="inline">Type</code> |
| 274 | can·contain·only·predefined·types,·or·user-defined·types·which·are·either·of·the | 274 | can·contain·only·predefined·types,·or·user-defined·types·which·are·either·of·the |
| 275 | following:</p><ul><li>Module-local·type,·that·is,·with·a·definition·that·is·present·in·the·code·of | 275 | following:</p><ul><li>Module-local·type,·that·is,·with·a·definition·that·is·present·in·the·code·of |
| 276 | the·module</li><li>Remote·type,·that·is,·type·defined·in,·and·exported·by,·other·modules;·more | 276 | the·module</li><li>Remote·type,·that·is,·type·defined·in,·and·exported·by,·other·modules;·more |
| 277 | about·this·soon.</li></ul><p>For·module-local·types,·the·restriction·that·their·definition·exists·in·the | 277 | about·this·soon.</li></ul><p>For·module-local·types,·the·restriction·that·their·definition·exists·in·the |
| 278 | module·is·enforced·by·the·compiler·and·results·in·a·compilation·error.·(A | 278 | module·is·enforced·by·the·compiler·and·results·in·a·compilation·error.·(A |
| 279 | similar·restriction·currently·exists·for·records.)</p><p>Type·declarations·can·also·be·parameterized·by·including·type·variables·between | 279 | similar·restriction·currently·exists·for·records.)</p><p>Type·declarations·can·also·be·parameterized·by·including·type·variables·between |
| 280 | the·parentheses.·The·syntax·of·type·variables·is·the·same·as·Erlang·variables, | 280 | the·parentheses.·The·syntax·of·type·variables·is·the·same·as·Erlang·variables, |
| 281 | that·is,·starts·with·an·upper-case·letter.·These·variables·is·to | 281 | that·is,·starts·with·an·upper-case·letter.·These·variables·is·to |
| 282 | appear·on·the·RHS·of·the·definition.·A·concrete·example·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">type</span><span·class="w">·</span><span·class="nf">orddict</span><span·class="p"·data-group-id=" | 282 | appear·on·the·RHS·of·the·definition.·A·concrete·example·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">type</span><span·class="w">·</span><span·class="nf">orddict</span><span·class="p"·data-group-id="4839776095-1">(</span><span·class="n">Key</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Val</span><span·class="p"·data-group-id="4839776095-1">)</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·cla[·...·truncated·by·diffoscope;·len:·315,·SHA:·bd3b8fcf10990519c1426df92a1c028c56d923064d6751b340fe368c39bd46d6·...·]-2">]</span><span·class="p">.</span></code></pre><p>A·module·can·export·some·types·to·declare·that·other·modules·are·allowed·to |
| 283 | refer·to·them·as·<em>remote·types</em>.·This·declaration·has·the·following·form:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">export_type</span><span·class="p"·data-group-id="11 | 283 | refer·to·them·as·<em>remote·types</em>.·This·declaration·has·the·following·form:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">export_type</span><span·class="p"·data-group-id="1312814653-1">(</span><span·class="p"·data-group-id="1312814653-2">[</span><span·class="n">T1</span><span·class="o">/</span><span·class="n">A1</span><span·class="p">,</span><span·class="w">·</span><span·class="p">.</span><span·class="p">.</span><span·class=[·...·truncated·by·diffoscope;·len:·964,·SHA:·55db171ac9db7e579f82b76281a1de71b9f7c78d0b19be42d035f5faa58e93e4·...·]-1">)</span><span·class="p">.</span></code></pre><p>Assuming·that·these·types·are·exported·from·module·<code·class="inline">'mod'</code>,·you·can·refer·to |
| 284 | them·from·other·modules·using·remote·type·expressions·like·the·following:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">mod</span><span·class="p">:</span><span·class="nf">my_struct_type</span><span·class="p"·data-group-id=" | 284 | them·from·other·modules·using·remote·type·expressions·like·the·following:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">mod</span><span·class="p">:</span><span·class="nf">my_struct_type</span><span·class="p"·data-group-id="4273332128-1">(</span><span·class="p"·data-group-id="4273332128-1">)</span><span·class="w"> |
| 285 | </span><span·class="nc">mod</span><span·class="p">:</span><span·class="nf">orddict</span><span·class="p"·data-group-id=" | 285 | </span><span·class="nc">mod</span><span·class="p">:</span><span·class="nf">orddict</span><span·class="p"·data-group-id="4273332128-2">(</span><span·class="nf">atom</span><span·class="p"·data-group-id="4273332128-3">(</span><span·class="p"·data-group-id="4273332128-3">)</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">term</span><span·class="p"·data-gro[·...·truncated·by·diffoscope;·len:·123,·SHA:·9a1afea6afc2cf7a679b3f67f88f4a74c11789019f878c43f155c3a5a2b22ff6·...·]-2">)</span></code></pre><p>It·is·not·allowed·to·refer·to·types·that·are·not·declared·as·exported.</p><p>Types·declared·as·<code·class="inline">opaque</code>·represent·sets·of·terms·whose·structure·is·not |
| 286 | supposed·to·be·visible·from·outside·of·their·defining·module.·That·is,·only·the | 286 | supposed·to·be·visible·from·outside·of·their·defining·module.·That·is,·only·the |
| 287 | module·defining·them·is·allowed·to·depend·on·their·term·structure.·Consequently, | 287 | module·defining·them·is·allowed·to·depend·on·their·term·structure.·Consequently, |
| 288 | such·types·do·not·make·much·sense·as·module·local·-·module·local·types·are·not | 288 | such·types·do·not·make·much·sense·as·module·local·-·module·local·types·are·not |
| 289 | accessible·by·other·modules·anyway·-·and·is·always·to·be·exported.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Change</h4><p>Nominal·types·were·introduced·in·Erlang/OTP·28.</p></section><p>Types·declared·as·<code·class="inline">nominal</code>·are·type-checked·according·to·the·user-defined | 289 | accessible·by·other·modules·anyway·-·and·is·always·to·be·exported.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Change</h4><p>Nominal·types·were·introduced·in·Erlang/OTP·28.</p></section><p>Types·declared·as·<code·class="inline">nominal</code>·are·type-checked·according·to·the·user-defined |
| 290 | names·instead·of·their·structure.·That·is,·<code·class="inline">-nominal·feet()·::·integer()</code>·and | 290 | names·instead·of·their·structure.·That·is,·<code·class="inline">-nominal·feet()·::·integer()</code>·and |
| 291 | <code·class="inline">-nominal·meter()·::·integer()</code>·are·not·the·same·type,·while·if·<code·class="inline">-type</code>·is | 291 | <code·class="inline">-nominal·meter()·::·integer()</code>·are·not·the·same·type,·while·if·<code·class="inline">-type</code>·is |
| 292 | used·it·would·be.</p><p>Read·more·on·<a·href="opaques.html">Opaques</a>·and·<a·href="nominals.html">Nominals</a></p><p><a·href=""·id="typeinrecords"></a></p><h2·id="type-information-in-record-declarations"·class="section-heading"> | 292 | used·it·would·be.</p><p>Read·more·on·<a·href="opaques.html">Opaques</a>·and·<a·href="nominals.html">Nominals</a></p><p><a·href=""·id="typeinrecords"></a></p><h2·id="type-information-in-record-declarations"·class="section-heading"> |
| 293 | ··<a·href="#type-information-in-record-declarations"·class="hover-link"> | 293 | ··<a·href="#type-information-in-record-declarations"·class="hover-link"> |
| 294 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 294 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 295 | ··</a> | 295 | ··</a> |
| 296 | ··<span·class="text">Type·Information·in·Record·Declarations</span> | 296 | ··<span·class="text">Type·Information·in·Record·Declarations</span> |
| 297 | </h2> | 297 | </h2> |
| 298 | <p>The·types·of·record·fields·can·be·specified·in·the·declaration·of·the·record. | 298 | <p>The·types·of·record·fields·can·be·specified·in·the·declaration·of·the·record. |
| 299 | The·syntax·for·this·is·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id=" | 299 | The·syntax·for·this·is·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id="1378643509-1">(</span><span·class="ss">rec</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1378643509-2">{</span><span·class="ss">field1</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><spa[·...·truncated·by·diffoscope;·len:·422,·SHA:·1829451ea3d7d44e92fba62798eb7e5a505ac8f02b17e1a5728c34dd9938cc10·...·]-1">)</span><span·class="p">.</span></code></pre><p>For·fields·without·type·annotations,·their·type·defaults·to·<code·class="inline">any()</code>.·That·is,·the |
| 300 | previous·example·is·a·shorthand·for·the·following:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id="0169015474-1">(</span><span·class="ss">rec</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0169015474-2">{</span><span·class="ss">field1</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="n">Type1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">field2</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">any</span><span·class="p"·data-group-id="0169015474-3">(</span><span·class="p"·data-group-id="0169015474-3">)</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">field3</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="n">Type3</span><span·class="p"·data-group-id="0169015474-2">}</span><span·class="p"·data-group-id="0169015474-1">)</span><span·class="p">.</span></code></pre><p>In·the·presence·of·initial·values·for·fields,·the·type·must·be·declared·after | ||
| 301 | 300 | previous·example·is·a·shorthand·for·the·following:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id="6348501347-1">(</span><span·class="ss">rec</span><span·class="p">,</s[·...·truncated·by·diffoscope;·len:·967,·SHA:·521b4385bd30a1ac71126c999491d3c2b86f13c07d46e286538bc76c5da7130b·...·] | |
| 301 | the·initialization,·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id="3721055328-1">(</span><span·class="ss">rec</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3721055328-2">{</span><span·class="ss">field1</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="3721055328-3">[</span><span·class="p"·data-group-id="3721055328-3">]</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="n">Type1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">field2</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">field3</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">42</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="n">Type3</span><span·class="p"·data-group-id="3721055328-2">}</span><span·class="p"·data-group-id="3721055328-1">)</span><span·class="p">.</span></code></pre><p>The·initial·values·for·fields·are·to·be·compatible·with·(that·is,·a·member·of) | ||
| 302 | the·corresponding·types.·This·is·checked·by·the·compiler·and·results·in·a | 302 | the·corresponding·types.·This·is·checked·by·the·compiler·and·results·in·a |
| 303 | compilation·error·if·a·violation·is·detected.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Change</h4><p>Before·Erlang/OTP·19,·for·fields·without·initial·values,·the·singleton·type | 303 | compilation·error·if·a·violation·is·detected.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Change</h4><p>Before·Erlang/OTP·19,·for·fields·without·initial·values,·the·singleton·type |
| 304 | <code·class="inline">'undefined'</code>·was·added·to·all·declared·types.·In·other·words,·the·following | 304 | <code·class="inline">'undefined'</code>·was·added·to·all·declared·types.·In·other·words,·the·following |
| 305 | two·record·declarations·had·identical·effects:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id=" | 305 | two·record·declarations·had·identical·effects:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id="5681861079-1">(</span><span·class="ss">rec</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="5681861079-2">{</span><span·class="ss">f1</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·cl[·...·truncated·by·diffoscope;·len:·239,·SHA:·54fe3fd5669a587150b2def1c1a359ec0fc64e3c8331dd50cf02c9ae65183b99·...·]-3">)</span><span·class="p">,</span><span·class="w"> |
| 306 | ·············</span><span·class="ss">f2</span><span·class="w">······</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">float</span><span·class="p"·data-group-id=" | 306 | ·············</span><span·class="ss">f2</span><span·class="w">······</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">float</span><span·class="p"·data-group-id="5681861079-4">(</span><span·class="p"·data-group-id="5681861079-4">)</span><span·class="p">,</span><span·class="w"> |
| 307 | ·············</span><span·class="ss">f3</span><span·class="w">······</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">'a'</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">'b'</span><span·class="p"·data-group-id=" | 307 | ·············</span><span·class="ss">f3</span><span·class="w">······</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">'a'</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">'b'</span><span·class="p"·data-group-id="5681861079-2">}</span><span·class="p"·data-group-id="5681861079-1">)</span><span·class="p">.</span><span·class="w"> |
| 308 | </span><span·class="w"> | 308 | </span><span·class="w"> |
| 309 | </span><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id=" | 309 | </span><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id="5681861079-5">(</span><span·class="ss">rec</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="5681861079-6">{</span><span·class="ss">f1</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·cl[·...·truncated·by·diffoscope;·len:·239,·SHA:·4de6aa7955d907eb46163f954ea1a27b3bc05bf0bcc648934939ca0710875763·...·]-7">)</span><span·class="p">,</span><span·class="w"> |
| 310 | ··············</span><span·class="ss">f2</span><span·class="w">······</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">'undefined'</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="nf">float</span><span·class="p"·data-group-id=" | 310 | ··············</span><span·class="ss">f2</span><span·class="w">······</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">'undefined'</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="nf">float</span><span·class="p"·data-group-id="5681861079-8">(</span><span·class="p"·data-group-id="5681861079-8">)</span><span·class="p">,</span><span·class="w"> |
| 311 | ··············</span><span·class="ss">f3</span><span·class="w">······</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">'undefined'</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">'a'</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">'b'</span><span·class="p"·data-group-id=" | 311 | ··············</span><span·class="ss">f3</span><span·class="w">······</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">'undefined'</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">'a'</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">'b'</span><span·class="p"·data-group-id="5681861079-6">}</span><span·class="p"·data-group-id="5681861079-5">)</span><span·class="p">.</span></code></pre><p>This·is·no·longer·the·case.·If·you·require·<code·class="inline">'undefined'</code>·in·your·record·field |
| 312 | type,·you·must·explicitly·add·it·to·the·typespec,·as·in·the·2nd·example.</p></section><p>Any·record,·containing·type·information·or·not,·once·defined,·can·be·used·as·a | 312 | type,·you·must·explicitly·add·it·to·the·typespec,·as·in·the·2nd·example.</p></section><p>Any·record,·containing·type·information·or·not,·once·defined,·can·be·used·as·a |
| 313 | type·using·the·following·syntax:</p><pre><code·class="text">#rec{}</code></pre><p>In·addition,·the·record·fields·can·be·further·specified·when·using·a·record·type | 313 | type·using·the·following·syntax:</p><pre><code·class="text">#rec{}</code></pre><p>In·addition,·the·record·fields·can·be·further·specified·when·using·a·record·type |
| 314 | by·adding·type·information·about·the·field·as·follows:</p><pre><code·class="text">#rec{some_field·::·Type}</code></pre><p>Any·unspecified·fields·are·assumed·to·have·the·type·in·the·original·record | 314 | by·adding·type·information·about·the·field·as·follows:</p><pre><code·class="text">#rec{some_field·::·Type}</code></pre><p>Any·unspecified·fields·are·assumed·to·have·the·type·in·the·original·record |
| 315 | declaration.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>When·records·are·used·to·create·patterns·for·ETS·and·Mnesia·match·functions, | 315 | declaration.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>When·records·are·used·to·create·patterns·for·ETS·and·Mnesia·match·functions, |
| 316 | Dialyzer·may·need·some·help·not·to·emit·bad·warnings.·For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">type</span><span·class="w">·</span><span·class="nf">height</span><span·class="p"·data-group-id=" | 316 | Dialyzer·may·need·some·help·not·to·emit·bad·warnings.·For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">type</span><span·class="w">·</span><span·class="nf">height</span><span·class="p"·data-group-id="4245412227-1">(</span><span·class="p"·data-group-id="4245412227-1">)</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">pos_integer</span><span·class="p"·data-group-id="4245412227-2">(</sp[·...·truncated·by·diffoscope;·len:·44,·SHA:·611001cacd71388953b2bcc7f66662833ee2195b32d5bbc6062754d2dee229b6·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 317 | </span><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id=" | 317 | </span><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id="4245412227-3">(</span><span·class="ss">person</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4245412227-4">{</span><span·class="ss">name</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><sp[·...·truncated·by·diffoscope;·len:·561,·SHA:·8ac9a7a68789df7fd786e6766b58ee7fc2d556822b8b31f55a4ecc22d6c60d53·...·]-3">)</span><span·class="p">.</span><span·class="w"> |
| 318 | </span><span·class="nf">lookup</span><span·class="p"·data-group-id=" | 318 | </span><span·class="nf">lookup</span><span·class="p"·data-group-id="4245412227-7">(</span><span·class="n">Name</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Tab</span><span·class="p"·data-group-id="4245412227-7">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 319 | ····</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">match_object</span><span·class="p"·data-group-id=" | 319 | ····</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">match_object</span><span·class="p"·data-group-id="4245412227-8">(</span><span·class="n">Tab</span><span·class="p">,</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">person</span><span·class="p"·data-group-id="4245412227-9">{</span><span·class="ss">name</span><span·class="w">·</span><[·...·truncated·by·diffoscope;·len:·347,·SHA:·912d366b1279b14cb9699d7f6719ac2d0a79a34111514179f762d89bc7c85087·...·]-8">)</span><span·class="p">.</span></code></pre><p>Dialyzer·will·emit·a·warning·since·<code·class="inline">'_'</code>·is·not·in·the·type·of·record·field |
| 320 | <code·class="inline">height</code>.</p><p>The·recommended·way·of·dealing·with·this·is·to·declare·the·smallest·record | 320 | <code·class="inline">height</code>.</p><p>The·recommended·way·of·dealing·with·this·is·to·declare·the·smallest·record |
| 321 | field·types·to·accommodate·all·your·needs,·and·then·create·refinements·as | 321 | field·types·to·accommodate·all·your·needs,·and·then·create·refinements·as |
| 322 | needed.·The·modified·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id="1 | 322 | needed.·The·modified·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id="9174783830-1">(</span><span·class="ss">person</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9174783830-2">{</span><span·class="ss">name</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><sp[·...·truncated·by·diffoscope;·len:·668,·SHA:·780c5c2a2ef1e2bd7617510820f82af5a49068860eebbbb846e202ee448970e3·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 323 | </span><span·class="w"> | 323 | </span><span·class="w"> |
| 324 | </span><span·class="p">-</span><span·class="na">type</span><span·class="w">·</span><span·class="nf">person</span><span·class="p"·data-group-id="1 | 324 | </span><span·class="p">-</span><span·class="na">type</span><span·class="w">·</span><span·class="nf">person</span><span·class="p"·data-group-id="9174783830-5">(</span><span·class="p"·data-group-id="9174783830-5">)</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">person</span><span·class="p"·data-group-id="[·...·truncated·by·diffoscope;·len:·325,·SHA:·003956c1cd0b9bd65365ae906b53f08ff5809ab530acc4b6abfb49697e6e2482·...·]-6">}</span><span·class="p">.</span></code></pre><p>In·specifications·and·type·declarations·the·type·<code·class="inline">person()</code>·is·to·be·preferred |
| 325 | before·<code·class="inline">#person{}</code>.</p></section><h2·id="specifications-for-functions"·class="section-heading"> | 325 | before·<code·class="inline">#person{}</code>.</p></section><h2·id="specifications-for-functions"·class="section-heading"> |
| 326 | ··<a·href="#specifications-for-functions"·class="hover-link"> | 326 | ··<a·href="#specifications-for-functions"·class="hover-link"> |
| 327 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 327 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 328 | ··</a> | 328 | ··</a> |
| 329 | ··<span·class="text">Specifications·for·Functions</span> | 329 | ··<span·class="text">Specifications·for·Functions</span> |
| 330 | </h2> | 330 | </h2> |
| 331 | <p>A·specification·(or·contract)·for·a·function·is·given·using·the·<code·class="inline">-spec</code> | 331 | <p>A·specification·(or·contract)·for·a·function·is·given·using·the·<code·class="inline">-spec</code> |
| 332 | attribute.·The·general·format·is·as·follows:</p><pre><code·class="text">-spec·Function(ArgType1,·...,·ArgTypeN)·->·ReturnType.</code></pre><p>An·implementation·of·the·function·with·the·same·name·<code·class="inline">Function</code>·must·exist·in | 332 | attribute.·The·general·format·is·as·follows:</p><pre><code·class="text">-spec·Function(ArgType1,·...,·ArgTypeN)·->·ReturnType.</code></pre><p>An·implementation·of·the·function·with·the·same·name·<code·class="inline">Function</code>·must·exist·in |
| 333 | the·current·module,·and·the·arity·of·the·function·must·match·the·number·of | 333 | the·current·module,·and·the·arity·of·the·function·must·match·the·number·of |
| 334 | arguments,·otherwise·the·compilation·fails.</p><p>The·following·longer·format·with·module·name·is·also·valid·as·long·as·<code·class="inline">Module</code> | 334 | arguments,·otherwise·the·compilation·fails.</p><p>The·following·longer·format·with·module·name·is·also·valid·as·long·as·<code·class="inline">Module</code> |
| 335 | is·the·name·of·the·current·module.·This·can·be·useful·for·documentation | 335 | is·the·name·of·the·current·module.·This·can·be·useful·for·documentation |
| 336 | purposes.</p><pre><code·class="text">-spec·Module:Function(ArgType1,·...,·ArgTypeN)·->·ReturnType.</code></pre><p>Also,·for·documentation·purposes,·argument·names·can·be·given:</p><pre><code·class="text">-spec·Function(ArgName1·::·Type1,·...,·ArgNameN·::·TypeN)·->·RT.</code></pre><p>A·function·specification·can·be·overloaded.·That·is,·it·can·have·several·types, | 336 | purposes.</p><pre><code·class="text">-spec·Module:Function(ArgType1,·...,·ArgTypeN)·->·ReturnType.</code></pre><p>Also,·for·documentation·purposes,·argument·names·can·be·given:</p><pre><code·class="text">-spec·Function(ArgName1·::·Type1,·...,·ArgNameN·::·TypeN)·->·RT.</code></pre><p>A·function·specification·can·be·overloaded.·That·is,·it·can·have·several·types, |
| 337 | separated·by·a·semicolon·(<code·class="inline">;</code>).·For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">spec</span><span·class="w">·</span><span·class="nf">foo</span><span·class="p"·data-group-id=" | 337 | separated·by·a·semicolon·(<code·class="inline">;</code>).·For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">spec</span><span·class="w">·</span><span·class="nf">foo</span><span·class="p"·data-group-id="0258363559-1">(</span><span·class="n">T1</span><span·class="p">,</span><span·class="w">·</span><span·class="n">T2</span><span·class="p"·data-group-id="0258363559-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">T3</span><span·class="p">;</span><span·class="w"> |
| 338 | ·········</span><span·class="p"·data-group-id=" | 338 | ·········</span><span·class="p"·data-group-id="0258363559-2">(</span><span·class="n">T4</span><span·class="p">,</span><span·class="w">·</span><span·class="n">T5</span><span·class="p"·data-group-id="0258363559-2">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">T6</span><span·class="p">.</span></code></pre><p>A·current·restriction,·which·currently·results·in·a·warning·by·Dialyzer,·is·that |
| 339 | the·domains·of·the·argument·types·cannot·overlap.·For·example,·the·following | 339 | the·domains·of·the·argument·types·cannot·overlap.·For·example,·the·following |
| 340 | specification·results·in·a·warning:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">spec</span><span·class="w">·</span><span·class="nf">foo</span><span·class="p"·data-group-id=" | 340 | specification·results·in·a·warning:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">spec</span><span·class="w">·</span><span·class="nf">foo</span><span·class="p"·data-group-id="7584338532-1">(</span><span·class="nf">pos_integer</span><span·class="p"·data-group-id="7584338532-2">(</span><span·class="p"·data-group-id="7584338532-2">)</span><span·class="p"·data-group-id="7584338532-1">)</span><span·class="w">·</span><span·class="p">[·...·truncated·by·diffoscope;·len:·164,·SHA:·5e2eaf43e30b719044ee47738f619232116b4b18b7422e7ddee0dfcdb6d3b4de·...·]2-3">)</span><span·class="p">;</span><span·class="w"> |
| 341 | ·········</span><span·class="p"·data-group-id=" | 341 | ·········</span><span·class="p"·data-group-id="7584338532-4">(</span><span·class="nf">integer</span><span·class="p"·data-group-id="7584338532-5">(</span><span·class="p"·data-group-id="7584338532-5">)</span><span·class="p"·data-group-id="7584338532-4">)</span><span·class="w">·</span><span·class="p">->[·...·truncated·by·diffoscope;·len:·156,·SHA:·4956c3415e36496f99653224444cf5e0b10077e66d639fc97bab356bb03c7197·...·]2-6">)</span><span·class="p">.</span></code></pre><p>Type·variables·can·be·used·in·specifications·to·specify·relations·for·the·input |
| 342 | and·output·arguments·of·a·function.·For·example,·the·following·specification | 342 | and·output·arguments·of·a·function.·For·example,·the·following·specification |
| 343 | defines·the·type·of·a·polymorphic·identity·function:</p><pre><code·class="text">-spec·id(X)·->·X.</code></pre><p>Notice·that·the·above·specification·does·not·restrict·the·input·and·output·type | 343 | defines·the·type·of·a·polymorphic·identity·function:</p><pre><code·class="text">-spec·id(X)·->·X.</code></pre><p>Notice·that·the·above·specification·does·not·restrict·the·input·and·output·type |
| 344 | in·any·way.·These·types·can·be·constrained·by·guard-like·subtype·constraints·and | 344 | in·any·way.·These·types·can·be·constrained·by·guard-like·subtype·constraints·and |
| 345 | provide·bounded·quantification:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">spec</span><span·class="w">·</span><span·class="nf">id</span><span·class="p"·data-group-id=" | 345 | provide·bounded·quantification:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">spec</span><span·class="w">·</span><span·class="nf">id</span><span·class="p"·data-group-id="8624316203-1">(</span><span·class="n">X</span><span·class="p"·data-group-id="8624316203-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">X</span><span·class="w">·</span><span·class="k">when</span><span·[·...·truncated·by·diffoscope;·len:·261,·SHA:·e6ce67a6aedc9eb3efc0bfe6cd49eb3b20d2a8888053bbcfcc20a5f5adc9c656·...·]-2">)</span><span·class="p">.</span></code></pre><p>Currently,·the·<code·class="inline">::</code>·constraint·(read·as·"is·a·subtype·of")·is·the·only·guard |
| 346 | constraint·that·can·be·used·in·the·<code·class="inline">when</code>·part·of·a·<code·class="inline">-spec</code>·attribute.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>The·above·function·specification·uses·multiple·occurrences·of·the·same·type | 346 | constraint·that·can·be·used·in·the·<code·class="inline">when</code>·part·of·a·<code·class="inline">-spec</code>·attribute.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>The·above·function·specification·uses·multiple·occurrences·of·the·same·type |
| 347 | variable.·That·provides·more·type·information·than·the·following·function | 347 | variable.·That·provides·more·type·information·than·the·following·function |
| 348 | specification,·where·the·type·variables·are·missing:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">spec</span><span·class="w">·</span><span·class="nf">id</span><span·class="p"·data-group-id=" | 348 | specification,·where·the·type·variables·are·missing:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">spec</span><span·class="w">·</span><span·class="nf">id</span><span·class="p"·data-group-id="6397338008-1">(</span><span·class="nf">tuple</span><span·class="p"·data-group-id="6397338008-2">(</span><span·class="p"·data-group-id="6397338008-2">)</span><span·class="p"·data-group-id="6397338008-1">)</span><span·class="w">·</span><span·class="p">-><[·...·truncated·by·diffoscope;·len:·153,·SHA:·66680d71200b132a8fd1bc9b3eb756ddf079b6394e1689795e5b21691dd60392·...·]-3">)</span><span·class="p">.</span></code></pre><p>The·latter·specification·says·that·the·function·takes·some·tuple·and·returns |
| 349 | some·tuple.·The·specification·with·the·<code·class="inline">X</code>·type·variable·specifies·that·the | 349 | some·tuple.·The·specification·with·the·<code·class="inline">X</code>·type·variable·specifies·that·the |
| 350 | function·takes·a·tuple·and·returns·<em>the·same</em>·tuple.</p><p>However,·it·is·up·to·the·tools·that·process·the·specifications·to·choose | 350 | function·takes·a·tuple·and·returns·<em>the·same</em>·tuple.</p><p>However,·it·is·up·to·the·tools·that·process·the·specifications·to·choose |
| 351 | whether·to·take·this·extra·information·into·account·or·not.</p></section><p>The·scope·of·a·<code·class="inline">::</code>·constraint·is·the·<code·class="inline">(...)·->·RetType</code>·specification·after | 351 | whether·to·take·this·extra·information·into·account·or·not.</p></section><p>The·scope·of·a·<code·class="inline">::</code>·constraint·is·the·<code·class="inline">(...)·->·RetType</code>·specification·after |
| 352 | which·it·appears.·To·avoid·confusion,·it·is·suggested·that·different·variables | 352 | which·it·appears.·To·avoid·confusion,·it·is·suggested·that·different·variables |
| 353 | are·used·in·different·constituents·of·an·overloaded·contract,·as·shown·in·the | 353 | are·used·in·different·constituents·of·an·overloaded·contract,·as·shown·in·the |
| 354 | following·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">spec</span><span·class="w">·</span><span·class="nf">foo</span><span·class="p"·data-group-id="6648430814-1">(</span><span·class="p"·data-group-id="6648430814-2">{</span><span·class="n">X</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="6648430814-3">(</span><span·class="p"·data-group-id="6648430814-3">)</span><span·class="p"·data-group-id="6648430814-2">}</span><span·class="p"·data-group-id="6648430814-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">X</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><span·class="n">X</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">atom</span><span·class="p"·data-group-id="6648430814-4">(</span><span·class="p"·data-group-id="6648430814-4">)</span><span·class="p">;</span><span·class="w"> | ||
| 355 | · | 354 | following·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">spec</span><span·class="w">·</span><span·class="nf">foo</span><span·class="p"·data-group-id="5185278941-1">(</span><span·class="p"·data-group-id=[·...·truncated·by·diffoscope;·len:·807,·SHA:·836e9d8dcdff0ae346620b975f34ae7d1a3dd23afd28df76edbf4bf7db833240·...·] |
| 355 | ·········</span><span·class="p"·data-group-id="5185278941-5">(</span><span·class="p"·data-group-id="5185278941-6">[</span><span·class="n">Y</span><span·class="p"·data-group-id="5185278941-6">]</span><span·class="p"·data-group-id="5185278941-5">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">Y</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><span·class="n">Y</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">number</span><span·class="p"·data-group-id="5185278941-7">(</span><span·class="p"·data-group-id="5185278941-7">)</span><span·class="p">.</span></code></pre><p>Some·functions·in·Erlang·are·not·meant·to·return;·either·because·they·define | ||
| 356 | servers·or·because·they·are·used·to·throw·exceptions,·as·in·the·following | 356 | servers·or·because·they·are·used·to·throw·exceptions,·as·in·the·following |
| 357 | function:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">my_error</span><span·class="p"·data-group-id=" | 357 | function:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">my_error</span><span·class="p"·data-group-id="7267376535-1">(</span><span·class="n">Err</span><span·class="p"·data-group-id="7267376535-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="nf">throw</span><span·class="p"·data-group-id="7267376535-2">(</sp[·...·truncated·by·diffoscope;·len:·253,·SHA:·03ca8ce3b1f69b9123bb8ee929f0580a8144318e6a652e1080a03ecf99f446b0·...·]-2">)</span><span·class="p">.</span></code></pre><p>For·such·functions,·it·is·recommended·to·use·the·special·<a·href="../../erts-16.0/doc/html/erlang.html#t:no_return/0"><code·class="inline">no_return/0</code></a>·type |
| 358 | for·their·"return",·through·a·contract·of·the·following·form:</p><pre><code·class="text">-spec·my_error(term())·->·no_return().</code></pre><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>Erlang·uses·the·shorthand·version·<code·class="inline">_</code>·as·an·anonymous·type·variable·equivalent | 358 | for·their·"return",·through·a·contract·of·the·following·form:</p><pre><code·class="text">-spec·my_error(term())·->·no_return().</code></pre><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>Erlang·uses·the·shorthand·version·<code·class="inline">_</code>·as·an·anonymous·type·variable·equivalent |
| 359 | to·<a·href="../../erts-16.0/doc/html/erlang.html#t:term/0"><code·class="inline">term/0</code></a>·or·<a·href="../../erts-16.0/doc/html/erlang.html#t:any/0"><code·class="inline">any/0</code></a>.·For·example,·the·following·function</p><pre><code·class="text">-spec·Function(string(),·_)·->·string().</code></pre><p>is·equivalent·to:</p><pre><code·class="text">-spec·Function(string(),·any())·->·string().</code></pre></section> | 359 | to·<a·href="../../erts-16.0/doc/html/erlang.html#t:term/0"><code·class="inline">term/0</code></a>·or·<a·href="../../erts-16.0/doc/html/erlang.html#t:any/0"><code·class="inline">any/0</code></a>.·For·example,·the·following·function</p><pre><code·class="text">-spec·Function(string(),·_)·->·string().</code></pre><p>is·equivalent·to:</p><pre><code·class="text">-spec·Function(string(),·any())·->·string().</code></pre></section> |
| 360 | </div> | 360 | </div> |
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| 215 | ······<p·class="built-using"> | 215 | ······<p·class="built-using"> |
| 216 | ········Built·using | 216 | ········Built·using |
| 217 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 217 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 218 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 218 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 219 | ······</p> | 219 | ······</p> |
| 220 | <p>Copyright·©·1996-202 | 220 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 221 | ····</footer> | 221 | ····</footer> |
| 222 | ··</div> | 222 | ··</div> |
| 223 | </main> | 223 | </main> |
| 224 | </div> | 224 | </div> |
| 225 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 225 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 226 | ··<script> | 226 | ··<script> |
| 227 | ··let·initialized·=·false; | 227 | ··let·initialized·=·false; |
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| 329 | ······<p·class="built-using"> | 329 | ······<p·class="built-using"> |
| 330 | ········Built·using | 330 | ········Built·using |
| 331 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 331 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 332 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 332 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 333 | ······</p> | 333 | ······</p> |
| 334 | <p>Copyright·©·1996-202 | 334 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 335 | ····</footer> | 335 | ····</footer> |
| 336 | ··</div> | 336 | ··</div> |
| 337 | </main> | 337 | </main> |
| 338 | </div> | 338 | </div> |
| 339 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 339 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 340 | ··<script> | 340 | ··<script> |
| 341 | ··let·initialized·=·false; | 341 | ··let·initialized·=·false; |
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| 149 | occurrences·of·<code·class="inline">maybe</code>·without·quotes.</p><p><a·href=""·id="float_matching"></a></p><h3·id="0-0-and-0-0-will-no-longer-be-exactly-equal"·class="section-heading"> | 149 | occurrences·of·<code·class="inline">maybe</code>·without·quotes.</p><p><a·href=""·id="float_matching"></a></p><h3·id="0-0-and-0-0-will-no-longer-be-exactly-equal"·class="section-heading"> |
| 150 | ··<a·href="#0-0-and-0-0-will-no-longer-be-exactly-equal"·class="hover-link"> | 150 | ··<a·href="#0-0-and-0-0-will-no-longer-be-exactly-equal"·class="hover-link"> |
| 151 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 151 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 152 | ··</a> | 152 | ··</a> |
| 153 | ··<span·class="text">0.0·and·-0.0·will·no·longer·be·exactly·equal</span> | 153 | ··<span·class="text">0.0·and·-0.0·will·no·longer·be·exactly·equal</span> |
| 154 | </h3> | 154 | </h3> |
| 155 | <p>Currently,·the·floating·point·numbers·<code·class="inline">0.0</code>·and·<code·class="inline">-0.0</code>·have·distinct·internal | 155 | <p>Currently,·the·floating·point·numbers·<code·class="inline">0.0</code>·and·<code·class="inline">-0.0</code>·have·distinct·internal |
| 156 | representations.·That·can·be·seen·if·they·are·converted·to·binaries:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="p"·data-group-id=" | 156 | representations.·That·can·be·seen·if·they·are·converted·to·binaries:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="p"·data-group-id="6411024209-1"><<</span><span·class="mf">0.0</span><span·class="o">/</span><span·class="nb">float</span><span·class="p"·data-group-id="6411024209-1">>></span><span·class="p">.</span><span·class="w"> |
| 157 | </span><span·class="p"·data-group-id=" | 157 | </span><span·class="p"·data-group-id="6411024209-2"><<</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·[·...·truncated·by·diffoscope;·len:·182,·SHA:·504b56f9e1581eaf745953f091e821e910996c65a7215e876e3d72a856d5d96a·...·]-2">>></span><span·class="gp·unselectable"> |
| 158 | 2>·</span><span·class="p"·data-group-id=" | 158 | 2>·</span><span·class="p"·data-group-id="6411024209-3"><<</span><span·class="o">-</span><span·class="mf">0.0</span><span·class="o">/</span><span·class="nb">float</span><span·class="p"·data-group-id="6411024209-3">>></span><span·class="p">.</span><span·class="w"> |
| 159 | </span><span·class="p"·data-group-id=" | 159 | </span><span·class="p"·data-group-id="6411024209-4"><<</span><span·class="mi">128</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><spa[·...·truncated·by·diffoscope;·len:·184,·SHA:·e78135fb18da9d88e4e8618eab24bdee2641a4b8afc94da6de47ecdd4162a7d7·...·]-4">>></span></code></pre><p>However,·when·they·are·matched·against·each·other·or·compared·using·the·<code·class="inline">=:=</code> |
| 160 | operator,·they·are·considered·to·be·equal.·Thus,·<code·class="inline">0.0·=:=·-0.0</code>·currently | 160 | operator,·they·are·considered·to·be·equal.·Thus,·<code·class="inline">0.0·=:=·-0.0</code>·currently |
| 161 | returns·<code·class="inline">true</code>.</p><p>In·Erlang/OTP·27,·<code·class="inline">0.0·=:=·-0.0</code>·will·return·<code·class="inline">false</code>,·and·matching·<code·class="inline">0.0</code>·against | 161 | returns·<code·class="inline">true</code>.</p><p>In·Erlang/OTP·27,·<code·class="inline">0.0·=:=·-0.0</code>·will·return·<code·class="inline">false</code>,·and·matching·<code·class="inline">0.0</code>·against |
| 162 | <code·class="inline">-0.0</code>·will·fail.·When·used·as·map·keys,·<code·class="inline">0.0</code>·and·<code·class="inline">-0.0</code>·will·be·considered·to | 162 | <code·class="inline">-0.0</code>·will·fail.·When·used·as·map·keys,·<code·class="inline">0.0</code>·and·<code·class="inline">-0.0</code>·will·be·considered·to |
| 163 | be·distinct.</p><p>The·<code·class="inline">==</code>·operator·will·continue·to·return·<code·class="inline">true</code>·for·<code·class="inline">0.0·==·-0.0</code>.</p><p>To·help·to·find·code·that·might·need·to·be·revised,·in·OTP·27·there·will·be·a | 163 | be·distinct.</p><p>The·<code·class="inline">==</code>·operator·will·continue·to·return·<code·class="inline">true</code>·for·<code·class="inline">0.0·==·-0.0</code>.</p><p>To·help·to·find·code·that·might·need·to·be·revised,·in·OTP·27·there·will·be·a |
| 164 | new·compiler·warning·when·matching·against·<code·class="inline">0.0</code>·or·comparing·to·that·value | 164 | new·compiler·warning·when·matching·against·<code·class="inline">0.0</code>·or·comparing·to·that·value |
| 165 | using·the·<code·class="inline">=:=</code>·operator.·The·warning·can·be·suppressed·by·matching·against | 165 | using·the·<code·class="inline">=:=</code>·operator.·The·warning·can·be·suppressed·by·matching·against |
| 166 | <code·class="inline">+0.0</code>·instead·of·<code·class="inline">0.0</code>.</p><p>We·plan·to·introduce·the·same·warning·in·OTP·26.1,·but·by·default·it·will·be | 166 | <code·class="inline">+0.0</code>·instead·of·<code·class="inline">0.0</code>.</p><p>We·plan·to·introduce·the·same·warning·in·OTP·26.1,·but·by·default·it·will·be |
| 167 | disabled.</p><p><a·href=""·id="singleton_typevars"></a></p><h3·id="singleton-type-variables-will-become-a-compile-time-error"·class="section-heading"> | 167 | disabled.</p><p><a·href=""·id="singleton_typevars"></a></p><h3·id="singleton-type-variables-will-become-a-compile-time-error"·class="section-heading"> |
| 168 | ··<a·href="#singleton-type-variables-will-become-a-compile-time-error"·class="hover-link"> | 168 | ··<a·href="#singleton-type-variables-will-become-a-compile-time-error"·class="hover-link"> |
| 169 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 169 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 170 | ··</a> | 170 | ··</a> |
| 171 | ··<span·class="text">Singleton·type·variables·will·become·a·compile-time·error</span> | 171 | ··<span·class="text">Singleton·type·variables·will·become·a·compile-time·error</span> |
| 172 | </h3> | 172 | </h3> |
| 173 | <p>Before·Erlang/OTP·26,·the·compiler·would·silenty·accept·the·following·spec:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">spec</span><span·class="w">·</span><span·class="nf">f</span><span·class="p"·data-group-id=" | 173 | <p>Before·Erlang/OTP·26,·the·compiler·would·silenty·accept·the·following·spec:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">spec</span><span·class="w">·</span><span·class="nf">f</span><span·class="p"·data-group-id="8009614047-1">(</span><span·class="n">Opts</span><span·class="p"·data-group-id="8009614047-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="nf">term</span><span·class="p"·data-group-id="8009614047-2">(</sp[·...·truncated·by·diffoscope;·len:·44,·SHA:·6676296080438df407cb10865f14994bfe330bba627164202466e9d0f4d43dd7·...·]-2">)</span><span·class="w">·</span><span·class="k">when</span><span·class="w"> |
| 174 | ····</span><span·class="n">Opts</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id=" | 174 | ····</span><span·class="n">Opts</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id="8009614047-3">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Unknown</span><span·class="p"·data-group-id="8009614047-3">}</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span[·...·truncated·by·diffoscope;·len:·196,·SHA:·18bd1d57568b6fa33804aef48d3191084eb6c54d59814a49119bced143776fd0·...·]-4">}</span><span·class="p">.</span><span·class="w"> |
| 175 | </span><span·class="nf">f</span><span·class="p"·data-group-id=" | 175 | </span><span·class="nf">f</span><span·class="p"·data-group-id="8009614047-5">(</span><span·class="p">_</span><span·class="p"·data-group-id="8009614047-5">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">error</span><span·class="p">.</span></code></pre><p>In·OTP·26,·the·compiler·emits·a·warning·pointing·out·that·the·type·variable |
| 176 | <code·class="inline">Unknown</code>·is·unbound:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="ss">t</span><span·class="p">.</span><span·class="nc">erl</span><span·class="p">:</span><span·class="mi">6</span><span·class="p">:</span><span·class="mi">18</span><span·class="p">:</span><span·class="w">·</span><span·class="n">Warning</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">type</span><span·class="w">·</span><span·class="ss">variable</span><span·class="w">·</span><span·class="ss">'Unknown'</span><span·class="w">·</span><span·class="ss">is</span><span·class="w">·</span><span·class="ss">only</span><span·class="w">·</span><span·class="ss">used</span><span·class="w">·</span><span·class="nf">once</span><span·class="w">·</span><span·class="p"·data-group-id=" | 176 | <code·class="inline">Unknown</code>·is·unbound:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="ss">t</span><span·class="p">.</span><span·class="nc">erl</span><span·class="p">:</span><span·class="mi">6</span><span·class="p">:</span><span·class="mi">18</span><span·class="p">:</span><span·class="w">·</span><span·class="n">Warning</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">type</span><span·class="w">·</span><span·class="ss">variable</span><span·class="w">·</span><span·class="ss">'Unknown'</span><span·class="w">·</span><span·class="ss">is</span><span·class="w">·</span><span·class="ss">only</span><span·class="w">·</span><span·class="ss">used</span><span·class="w">·</span><span·class="nf">once</span><span·class="w">·</span><span·class="p"·data-group-id="4625377907-1">(</span><span·class="ss">is</span><span·class="w">·</span><span·class="ss">unbound</span><span·class="p"·data-group-id="4625377907-1">)</span><span·class="w"> |
| 177 | </span><span·class="c1">%····6|·····Opts·::·{ok,·Unknown}·|·{error,·Unknown}.</span><span·class="w"> | 177 | </span><span·class="c1">%····6|·····Opts·::·{ok,·Unknown}·|·{error,·Unknown}.</span><span·class="w"> |
| 178 | </span><span·class="c1">%·····|··················^</span></code></pre><p>In·OTP·27,·that·warning·will·become·an·error.</p><p><a·href=""·id="escripts_will_be_compiled"></a></p><h3·id="escripts-will-be-compiled-by-default"·class="section-heading"> | 178 | </span><span·class="c1">%·····|··················^</span></code></pre><p>In·OTP·27,·that·warning·will·become·an·error.</p><p><a·href=""·id="escripts_will_be_compiled"></a></p><h3·id="escripts-will-be-compiled-by-default"·class="section-heading"> |
| 179 | ··<a·href="#escripts-will-be-compiled-by-default"·class="hover-link"> | 179 | ··<a·href="#escripts-will-be-compiled-by-default"·class="hover-link"> |
| 180 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 180 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 181 | ··</a> | 181 | ··</a> |
| 182 | ··<span·class="text">Escripts·will·be·compiled·by·default</span> | 182 | ··<span·class="text">Escripts·will·be·compiled·by·default</span> |
| 183 | </h3> | 183 | </h3> |
| 184 | <p>Escripts·will·be·compiled·by·default·instead·of·interpreted.·That·means·that·the | 184 | <p>Escripts·will·be·compiled·by·default·instead·of·interpreted.·That·means·that·the |
| 185 | <code·class="inline">compiler</code>·application·must·be·available.</p><p>The·old·behavior·of·interpreting·escripts·can·be·restored·by·adding·the | 185 | <code·class="inline">compiler</code>·application·must·be·available.</p><p>The·old·behavior·of·interpreting·escripts·can·be·restored·by·adding·the |
| 186 | following·line·to·the·script·file:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">mode</span><span·class="p"·data-group-id=" | 186 | following·line·to·the·script·file:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">mode</span><span·class="p"·data-group-id="9777109654-1">(</span><span·class="ss">interpret</span><span·class="p"·data-group-id="9777109654-1">)</span><span·class="p">.</span></code></pre><p>In·OTP·28,·support·for·interpreting·an·escript·will·be·removed.</p><h3·id="code_path_choice-will-default-to-strict"·class="section-heading"> |
| 187 | ··<a·href="#code_path_choice-will-default-to-strict"·class="hover-link"> | 187 | ··<a·href="#code_path_choice-will-default-to-strict"·class="hover-link"> |
| 188 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 188 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 189 | ··</a> | 189 | ··</a> |
| 190 | ··<span·class="text">-code_path_choice·will·default·to·strict</span> | 190 | ··<span·class="text">-code_path_choice·will·default·to·strict</span> |
| 191 | </h3> | 191 | </h3> |
| 192 | <p>This·command·line·option·controls·if·paths·given·in·the·command·line,·boot | 192 | <p>This·command·line·option·controls·if·paths·given·in·the·command·line,·boot |
| 193 | scripts,·and·the·code·server·should·be·interpreted·as·is·strict·or·relaxed.</p><p>OTP·26·and·earlier·defaults·to·<code·class="inline">relaxed</code>,·which·means·<code·class="inline">-pa·myapp/ebin</code>·would | 193 | scripts,·and·the·code·server·should·be·interpreted·as·is·strict·or·relaxed.</p><p>OTP·26·and·earlier·defaults·to·<code·class="inline">relaxed</code>,·which·means·<code·class="inline">-pa·myapp/ebin</code>·would |
| Offset 231, 18 lines modified | Offset 231, 18 lines modified | ||
| 231 | " | 231 | " |
| 232 | String·Content | 232 | String·Content |
| 233 | " | 233 | " |
| 234 | %% | 234 | %% |
| 235 | %%·In·OTP·27·it·is·instead·interpreted·as·a | 235 | %%·In·OTP·27·it·is·instead·interpreted·as·a |
| 236 | %%·Triple-Quoted·String·equivalent·to | 236 | %%·Triple-Quoted·String·equivalent·to |
| 237 | "String·Content"</code></pre><pre><code·class="makeup·erlang"·translate="no"><span·class="s">""</span><span·class="s">""</span><span·class="w"> | 237 | "String·Content"</code></pre><pre><code·class="makeup·erlang"·translate="no"><span·class="s">""</span><span·class="s">""</span><span·class="w"> |
| 238 | </span><span·class="o">++</span><span·class="w">·</span><span·class="nf">foo</span><span·class="p"·data-group-id=" | 238 | </span><span·class="o">++</span><span·class="w">·</span><span·class="nf">foo</span><span·class="p"·data-group-id="7269787928-1">(</span><span·class="p"·data-group-id="7269787928-1">)</span><span·class="w">·</span><span·class="o">++</span><span·class="w"> |
| 239 | </span><span·class="s">""</span><span·class="s">""</span><span·class="w"> | 239 | </span><span·class="s">""</span><span·class="s">""</span><span·class="w"> |
| 240 | </span><span·class="c1">%%·Became</span><span·class="w"> | 240 | </span><span·class="c1">%%·Became</span><span·class="w"> |
| 241 | </span><span·class="s">""</span><span·class="w">·</span><span·class="o">++</span><span·class="w">·</span><span·class="nf">foo</span><span·class="p"·data-group-id=" | 241 | </span><span·class="s">""</span><span·class="w">·</span><span·class="o">++</span><span·class="w">·</span><span·class="nf">foo</span><span·class="p"·data-group-id="7269787928-2">(</span><span·class="p"·data-group-id="7269787928-2">)</span><span·class="w">·</span><span·class="o">++</span><span·class="w">·</span><span·class="s">""</span><span·class="w"> |
| 242 | </span><span·class="c1">%%</span><span·class="w"> | 242 | </span><span·class="c1">%%</span><span·class="w"> |
| 243 | </span><span·class="c1">%%·In·OTP·27·it·is·instead·interpreted·as·a</span><span·class="w"> | 243 | </span><span·class="c1">%%·In·OTP·27·it·is·instead·interpreted·as·a</span><span·class="w"> |
| 244 | </span><span·class="c1">%%·Triple-Quoted·String·(triple-or-more)·equivalent·to</span><span·class="w"> | 244 | </span><span·class="c1">%%·Triple-Quoted·String·(triple-or-more)·equivalent·to</span><span·class="w"> |
| 245 | </span><span·class="s">"++·foo()·++"</span></code></pre><p>From·Erlang/OTP·26.1·up·to·27.0·the·compiler·issues·a·warning·for·a·sequence·of | 245 | </span><span·class="s">"++·foo()·++"</span></code></pre><p>From·Erlang/OTP·26.1·up·to·27.0·the·compiler·issues·a·warning·for·a·sequence·of |
| 246 | 3·or·more·double-quote·characters·since·that·is·almost·certainly·a·mistake·or | 246 | 3·or·more·double-quote·characters·since·that·is·almost·certainly·a·mistake·or |
| 247 | something·like·a·result·of·bad·automatic·code·generation.·If·a·users·gets·that | 247 | something·like·a·result·of·bad·automatic·code·generation.·If·a·users·gets·that |
| 248 | warning,·the·code·should·be·corrected·for·example·by·inserting·appropriate | 248 | warning,·the·code·should·be·corrected·for·example·by·inserting·appropriate |
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| 358 | ······<p·class="built-using"> | 358 | ······<p·class="built-using"> |
| 359 | ········Built·using | 359 | ········Built·using |
| 360 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 360 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 361 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 361 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 362 | ······</p> | 362 | ······</p> |
| 363 | <p>Copyright·©·1996-202 | 363 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 364 | ····</footer> | 364 | ····</footer> |
| 365 | ··</div> | 365 | ··</div> |
| 366 | </main> | 366 | </main> |
| 367 | </div> | 367 | </div> |
| 368 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 368 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 369 | ··<script> | 369 | ··<script> |
| 370 | ··let·initialized·=·false; | 370 | ··let·initialized·=·false; |
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| 139 | ······<p·class="built-using"> | 139 | ······<p·class="built-using"> |
| 140 | ········Built·using | 140 | ········Built·using |
| 141 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 141 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 142 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 142 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 143 | ······</p> | 143 | ······</p> |
| 144 | <p>Copyright·©·1996-202 | 144 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 145 | ····</footer> | 145 | ····</footer> |
| 146 | ··</div> | 146 | ··</div> |
| 147 | </main> | 147 | </main> |
| 148 | </div> | 148 | </div> |
| 149 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 149 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 150 | ··<script> | 150 | ··<script> |
| 151 | ··let·initialized·=·false; | 151 | ··let·initialized·=·false; |
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| 518 | ······<p·class="built-using"> | 518 | ······<p·class="built-using"> |
| 519 | ········Built·using | 519 | ········Built·using |
| 520 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 520 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 521 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 521 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 522 | ······</p> | 522 | ······</p> |
| 523 | <p>Copyright·©·1996-202 | 523 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 524 | ····</footer> | 524 | ····</footer> |
| 525 | ··</div> | 525 | ··</div> |
| 526 | </main> | 526 | </main> |
| 527 | </div> | 527 | </div> |
| 528 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 528 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 529 | ··<script> | 529 | ··<script> |
| 530 | ··let·initialized·=·false; | 530 | ··let·initialized·=·false; |
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| 202 | ······<p·class="built-using"> | 202 | ······<p·class="built-using"> |
| 203 | ········Built·using | 203 | ········Built·using |
| 204 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 204 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 205 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 205 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 206 | ······</p> | 206 | ······</p> |
| 207 | <p>Copyright·©·1996-202 | 207 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 208 | ····</footer> | 208 | ····</footer> |
| 209 | ··</div> | 209 | ··</div> |
| 210 | </main> | 210 | </main> |
| 211 | </div> | 211 | </div> |
| 212 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 212 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 213 | ··<script> | 213 | ··<script> |
| 214 | ··let·initialized·=·false; | 214 | ··let·initialized·=·false; |
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| 237 | <code·class="inline">uds_dist</code>·example·using·a·port·driver·written·in·C,·<code·class="inline">erl_uds_dist</code>·is·written | 237 | <code·class="inline">uds_dist</code>·example·using·a·port·driver·written·in·C,·<code·class="inline">erl_uds_dist</code>·is·written |
| 238 | entirely·in·Erlang.</p><h3·id="exported-callback-functions"·class="section-heading"> | 238 | entirely·in·Erlang.</p><h3·id="exported-callback-functions"·class="section-heading"> |
| 239 | ··<a·href="#exported-callback-functions"·class="hover-link"> | 239 | ··<a·href="#exported-callback-functions"·class="hover-link"> |
| 240 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 240 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 241 | ··</a> | 241 | ··</a> |
| 242 | ··<span·class="text">Exported·Callback·Functions</span> | 242 | ··<span·class="text">Exported·Callback·Functions</span> |
| 243 | </h3> | 243 | </h3> |
| 244 | <p>The·following·functions·are·mandatory:</p><ul><li><pre·id="listen"><code·class="makeup·erlang"·translate="no"><span·class="nf">listen</span><span·class="p"·data-group-id=" | 244 | <p>The·following·functions·are·mandatory:</p><ul><li><pre·id="listen"><code·class="makeup·erlang"·translate="no"><span·class="nf">listen</span><span·class="p"·data-group-id="8957721978-1">(</span><span·class="n">Name</span><span·class="p"·data-group-id="8957721978-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 245 | </span><span·class="err"> </span><span·class="err"> </span><span·class="p"·data-group-id=" | 245 | </span><span·class="err"> </span><span·class="err"> </span><span·class="p"·data-group-id="8957721978-2">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8957721978-3">{</span><span·class="n">Listen</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Address</span>[·...·truncated·by·diffoscope;·len:·455,·SHA:·b571ac4d11a907c6aad98313e6e87e7d77129c42e36b0ff9fa297a1994980342·...·]8-4">}</span><span·class="w"> |
| 246 | </span><span·class="nf">listen</span><span·class="p"·data-group-id=" | 246 | </span><span·class="nf">listen</span><span·class="p"·data-group-id="8957721978-5">(</span><span·class="n">Name</span><span·class="p">,</span><span·class="n">Host</span><span·class="p"·data-group-id="8957721978-5">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 247 | </span><span·class="err"> </span><span·class="err"> </span><span·class="p"·data-group-id=" | 247 | </span><span·class="err"> </span><span·class="err"> </span><span·class="p"·data-group-id="8957721978-6">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8957721978-7">{</span><span·class="n">Listen</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Address</span>[·...·truncated·by·diffoscope;·len:·455,·SHA:·74ca4783eaf3fcedb79ded6a2aedffad982cd0dfb193863a055cda5ba4a2c41f·...·]8-8">}</span></code></pre><p><code·class="inline">listen/2</code>·is·called·once·in·order·to·listen·for·incoming·connection·requests. |
| 248 | The·call·is·made·when·the·distribution·is·brought·up.·The·argument·<code·class="inline">Name</code>·is | 248 | The·call·is·made·when·the·distribution·is·brought·up.·The·argument·<code·class="inline">Name</code>·is |
| 249 | the·part·of·the·node·name·before·the·<code·class="inline">@</code>·sign·in·the·full·node·name.·It·can·be | 249 | the·part·of·the·node·name·before·the·<code·class="inline">@</code>·sign·in·the·full·node·name.·It·can·be |
| 250 | either·an·atom·or·a·string.·The·argument·<code·class="inline">Host</code>·is·the·part·of·the·node·name | 250 | either·an·atom·or·a·string.·The·argument·<code·class="inline">Host</code>·is·the·part·of·the·node·name |
| 251 | after·the·<code·class="inline">@</code>·sign·in·the·full·node·name.·It·is·always·a·string.</p><p>The·return·value·consists·of·a·<code·class="inline">Listen</code>·handle·(which·is·later·passed·to·the | 251 | after·the·<code·class="inline">@</code>·sign·in·the·full·node·name.·It·is·always·a·string.</p><p>The·return·value·consists·of·a·<code·class="inline">Listen</code>·handle·(which·is·later·passed·to·the |
| 252 | <a·href="alt_dist.html#accept"><code·class="inline">accept/1</code></a>·callback),·<code·class="inline">Address</code>·which·is·a | 252 | <a·href="alt_dist.html#accept"><code·class="inline">accept/1</code></a>·callback),·<code·class="inline">Address</code>·which·is·a |
| 253 | <code·class="inline">#net_address{}</code>·record·with·information·about·the·address·for·the·node·(the | 253 | <code·class="inline">#net_address{}</code>·record·with·information·about·the·address·for·the·node·(the |
| 254 | <code·class="inline">#net_address{}</code>·record·is·defined·in·<code·class="inline">kernel/include/net_address.hrl</code>),·and | 254 | <code·class="inline">#net_address{}</code>·record·is·defined·in·<code·class="inline">kernel/include/net_address.hrl</code>),·and |
| 255 | <code·class="inline">Creation</code>·which·(currently)·is·an·integer·<code·class="inline">1</code>,·<code·class="inline">2</code>,·or·<code·class="inline">3</code>.</p><p>If·<a·href="epmd_cmd.html"><code·class="inline">epmd</code></a>·is·to·be·used·for·node·discovery,·you·typically·want | 255 | <code·class="inline">Creation</code>·which·(currently)·is·an·integer·<code·class="inline">1</code>,·<code·class="inline">2</code>,·or·<code·class="inline">3</code>.</p><p>If·<a·href="epmd_cmd.html"><code·class="inline">epmd</code></a>·is·to·be·used·for·node·discovery,·you·typically·want |
| 256 | to·use·the·<code·class="inline">erl_epmd</code>·module·(part·of·the·<code·class="inline">kernel</code>·application)·in·order·to | 256 | to·use·the·<code·class="inline">erl_epmd</code>·module·(part·of·the·<code·class="inline">kernel</code>·application)·in·order·to |
| 257 | register·the·listen·port·with·<code·class="inline">epmd</code>·and·retrieve·<code·class="inline">Creation</code>·to·use.</p></li><li><pre·id="address"><code·class="makeup·erlang"·translate="no"><span·class="nf">address</span><span·class="p"·data-group-id=" | 257 | register·the·listen·port·with·<code·class="inline">epmd</code>·and·retrieve·<code·class="inline">Creation</code>·to·use.</p></li><li><pre·id="address"><code·class="makeup·erlang"·translate="no"><span·class="nf">address</span><span·class="p"·data-group-id="6992922181-1">(</span><span·class="p"·data-group-id="6992922181-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 258 | </span><span·class="err"> </span><span·class="err"> </span><span·class="n">Address</span></code></pre><p><code·class="inline">address/0</code>·is·called·in·order·to·get·the·<code·class="inline">Address</code>·part·of·the | 258 | </span><span·class="err"> </span><span·class="err"> </span><span·class="n">Address</span></code></pre><p><code·class="inline">address/0</code>·is·called·in·order·to·get·the·<code·class="inline">Address</code>·part·of·the |
| 259 | <a·href="alt_dist.html#listen"><code·class="inline">listen/2</code></a>·function·without·creating·a·listen·socket. | 259 | <a·href="alt_dist.html#listen"><code·class="inline">listen/2</code></a>·function·without·creating·a·listen·socket. |
| 260 | All·fields·except·<code·class="inline">address</code>·have·to·be·set·in·the·returned·record</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">address</span><span·class="p"·data-group-id="6 | 260 | All·fields·except·<code·class="inline">address</code>·have·to·be·set·in·the·returned·record</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">address</span><span·class="p"·data-group-id="6121273859-1">(</span><span·class="p"·data-group-id="6121273859-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 261 | ····</span><span·class="p"·data-group-id="6 | 261 | ····</span><span·class="p"·data-group-id="6121273859-2">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Host</span><span·class="p"·data-group-id="6121273859-2">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·cla[·...·truncated·by·diffoscope;·len:·172,·SHA:·ada6db4e8c4a250f7afa160e83017d46783de353196666f867c18aae860e9a33·...·]-3">)</span><span·class="p">,</span><span·class="w"> |
| 262 | ····</span><span·class="o">#</span><span·class="ss">net_address</span><span·class="p"·data-group-id="6 | 262 | ····</span><span·class="o">#</span><span·class="ss">net_address</span><span·class="p"·data-group-id="6121273859-4">{</span><span·class="w">·</span><span·class="ss">host</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">Host</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">protocol</span><spa[·...·truncated·by·diffoscope;·len:·610,·SHA:·330b337e272b2fa1030a28ad3a1045a5e138b3708bf6a321842a2d2f51ecb4e1·...·]-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 263 | </span><span·class="err"> </span><span·class="err"> </span><span·class="n">AcceptorPid</span></code></pre><p><code·class="inline">accept/1</code>·should·spawn·a·process·that·accepts·connections.·This·process | 263 | </span><span·class="err"> </span><span·class="err"> </span><span·class="n">AcceptorPid</span></code></pre><p><code·class="inline">accept/1</code>·should·spawn·a·process·that·accepts·connections.·This·process |
| 264 | should·preferably·execute·on·<code·class="inline">max</code>·priority.·The·process·identifier·of·this | 264 | should·preferably·execute·on·<code·class="inline">max</code>·priority.·The·process·identifier·of·this |
| 265 | process·should·be·returned.</p><p>The·<code·class="inline">Listen</code>·argument·will·be·the·same·as·the·<code·class="inline">Listen</code>·handle·part·of·the | 265 | process·should·be·returned.</p><p>The·<code·class="inline">Listen</code>·argument·will·be·the·same·as·the·<code·class="inline">Listen</code>·handle·part·of·the |
| 266 | return·value·of·the·<a·href="alt_dist.html#listen"><code·class="inline">listen/1</code></a>·callback·above. | 266 | return·value·of·the·<a·href="alt_dist.html#listen"><code·class="inline">listen/1</code></a>·callback·above. |
| 267 | <code·class="inline">accept/1</code>·is·called·only·once·when·the·distribution·protocol·is·started.</p><p>The·caller·of·this·function·is·a·representative·for·<code·class="inline">net_kernel</code>·(this·may·or | 267 | <code·class="inline">accept/1</code>·is·called·only·once·when·the·distribution·protocol·is·started.</p><p>The·caller·of·this·function·is·a·representative·for·<code·class="inline">net_kernel</code>·(this·may·or |
| 268 | may·not·be·the·process·registered·as·<code·class="inline">net_kernel</code>)·and·is·in·this·document | 268 | may·not·be·the·process·registered·as·<code·class="inline">net_kernel</code>)·and·is·in·this·document |
| 269 | identified·as·<code·class="inline">Kernel</code>.·When·a·connection·has·been·accepted·by·the·acceptor | 269 | identified·as·<code·class="inline">Kernel</code>.·When·a·connection·has·been·accepted·by·the·acceptor |
| 270 | process,·it·needs·to·inform·<code·class="inline">Kernel</code>·about·the·accepted·connection.·This·is | 270 | process,·it·needs·to·inform·<code·class="inline">Kernel</code>·about·the·accepted·connection.·This·is |
| 271 | done·by·passing·a·message·of·the·form:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Kernel</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id=" | 271 | done·by·passing·a·message·of·the·form:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Kernel</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id="3149908595-1">{</span><span·class="ss">accept</span><span·class="p">,</span><span·class="w">·</span><span·class="n">AcceptorPid</span><span·class="p">,</span><span·class="w">·</span><span·class="n">DistController</span><span·class="p">,</span><span·class="[·...·truncated·by·diffoscope;·len:·157,·SHA:·e32a8ff10745db8a47f166ac05560ef6243bd0f6191700643eb0c58e075e2295·...·]-1">}</span></code></pre><p><code·class="inline">DistController</code>·is·either·the·process·or·port·identifier·of·the·distribution |
| 272 | controller·for·the·connection.·The·distribution·controller·should·be·created | 272 | controller·for·the·connection.·The·distribution·controller·should·be·created |
| 273 | by·the·acceptor·processes·when·a·new·connection·is·accepted.·Its·job·is·to | 273 | by·the·acceptor·processes·when·a·new·connection·is·accepted.·Its·job·is·to |
| 274 | dispatch·traffic·on·the·connection.</p><p><code·class="inline">Kernel</code>·responds·with·one·of·the·following·messages:</p><ul><li><p><strong><code·class="inline">{Kernel,·controller,·SupervisorPid}</code></strong>·-·The·request·was·accepted·and | 274 | dispatch·traffic·on·the·connection.</p><p><code·class="inline">Kernel</code>·responds·with·one·of·the·following·messages:</p><ul><li><p><strong><code·class="inline">{Kernel,·controller,·SupervisorPid}</code></strong>·-·The·request·was·accepted·and |
| 275 | <code·class="inline">SupervisorPid</code>·is·the·process·identifier·of·the·connection·supervisor | 275 | <code·class="inline">SupervisorPid</code>·is·the·process·identifier·of·the·connection·supervisor |
| 276 | process·(which·is·created·in·the | 276 | process·(which·is·created·in·the |
| 277 | <a·href="alt_dist.html#accept_connection"><code·class="inline">accept_connection/5</code></a>·callback).</p></li><li><p><strong><code·class="inline">{Kernel,·unsupported_protocol}</code></strong>·-·The·request·was·rejected.·This·is·a | 277 | <a·href="alt_dist.html#accept_connection"><code·class="inline">accept_connection/5</code></a>·callback).</p></li><li><p><strong><code·class="inline">{Kernel,·unsupported_protocol}</code></strong>·-·The·request·was·rejected.·This·is·a |
| 278 | fatal·error.·The·acceptor·process·should·terminate.</p></li></ul><p>When·an·accept·sequence·has·been·completed·the·acceptor·process·is·expected·to | 278 | fatal·error.·The·acceptor·process·should·terminate.</p></li></ul><p>When·an·accept·sequence·has·been·completed·the·acceptor·process·is·expected·to |
| 279 | continue·accepting·further·requests.</p></li><li><pre·id="accept_connection"><code·class="makeup·erlang"·translate="no"><span·class="nf">accept_connection</span><span·class="p"·data-group-id=" | 279 | continue·accepting·further·requests.</p></li><li><pre·id="accept_connection"><code·class="makeup·erlang"·translate="no"><span·class="nf">accept_connection</span><span·class="p"·data-group-id="7622689115-1">(</span><span·class="n">AcceptorPid</span><span·class="p">,</span><span·class="w">·</span><span·class="n">DistCtrl</span><span·class="p">,</span><span·class="w">·</span><span·class="n">MyNode</span><span·class="p">,</span><span·class="w">·</s[·...·truncated·by·diffoscope;·len:·155,·SHA:·82bd2c1d8dd03458c0da68a7855462f11c8470231f722628135200e7c47f2f34·...·]-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 280 | </span><span·class="err"> </span><span·class="err"> </span><span·class="n">ConnectionSupervisorPid</span></code></pre><p><code·class="inline">accept_connection/5</code>·should·spawn·a·process·that·will·perform·the·Erlang | 280 | </span><span·class="err"> </span><span·class="err"> </span><span·class="n">ConnectionSupervisorPid</span></code></pre><p><code·class="inline">accept_connection/5</code>·should·spawn·a·process·that·will·perform·the·Erlang |
| 281 | distribution·handshake·for·the·connection.·If·the·handshake·successfully | 281 | distribution·handshake·for·the·connection.·If·the·handshake·successfully |
| 282 | completes·it·should·continue·to·function·as·a·connection·supervisor.·This | 282 | completes·it·should·continue·to·function·as·a·connection·supervisor.·This |
| 283 | process·should·preferably·execute·on·<code·class="inline">max</code>·priority·and·should·be·linked·to | 283 | process·should·preferably·execute·on·<code·class="inline">max</code>·priority·and·should·be·linked·to |
| 284 | the·caller.·The·<code·class="inline">dist_util:net_ticker_spawn_options()</code>·function·can·be·called | 284 | the·caller.·The·<code·class="inline">dist_util:net_ticker_spawn_options()</code>·function·can·be·called |
| 285 | to·get·spawn·options·suitable·for·this·process·which·can·be·passed·directly·to | 285 | to·get·spawn·options·suitable·for·this·process·which·can·be·passed·directly·to |
| 286 | <a·href="erlang.html#spawn_opt/4"><code·class="inline">erlang:spawn_opt/4</code></a>.·<code·class="inline">dist_util:net_ticker_spawn_options()</code>·will·by·default | 286 | <a·href="erlang.html#spawn_opt/4"><code·class="inline">erlang:spawn_opt/4</code></a>.·<code·class="inline">dist_util:net_ticker_spawn_options()</code>·will·by·default |
| Offset 294, 15 lines modified | Offset 294, 15 lines modified | ||
| 294 | <code·class="inline">dist_util:handshake_other_started(HsData)</code>.</p></li><li><p><strong><code·class="inline">Allowed</code></strong>·-·To·be·passed·along·to | 294 | <code·class="inline">dist_util:handshake_other_started(HsData)</code>.</p></li><li><p><strong><code·class="inline">Allowed</code></strong>·-·To·be·passed·along·to |
| 295 | <code·class="inline">dist_util:handshake_other_started(HsData)</code>.</p></li><li><p><strong><code·class="inline">SetupTime</code></strong>·-·Time·used·for·creating·a·setup·timer·by·a·call·to | 295 | <code·class="inline">dist_util:handshake_other_started(HsData)</code>.</p></li><li><p><strong><code·class="inline">SetupTime</code></strong>·-·Time·used·for·creating·a·setup·timer·by·a·call·to |
| 296 | <code·class="inline">dist_util:start_timer(SetupTime)</code>.·The·timer·should·be·passed·along·to | 296 | <code·class="inline">dist_util:start_timer(SetupTime)</code>.·The·timer·should·be·passed·along·to |
| 297 | <code·class="inline">dist_util:handshake_other_started(HsData)</code>.</p></li></ul><p>The·created·process·should·provide·callbacks·and·other·information·needed·for | 297 | <code·class="inline">dist_util:handshake_other_started(HsData)</code>.</p></li></ul><p>The·created·process·should·provide·callbacks·and·other·information·needed·for |
| 298 | the·handshake·in·a·<a·href="alt_dist.html#hs_data_record"><code·class="inline">#hs_data{}</code></a>·record·and·call | 298 | the·handshake·in·a·<a·href="alt_dist.html#hs_data_record"><code·class="inline">#hs_data{}</code></a>·record·and·call |
| 299 | <code·class="inline">dist_util:handshake_other_started(HsData)</code>·with·this·record.</p><p><code·class="inline">dist_util:handshake_other_started(HsData)</code>·will·perform·the·handshake·and·if | 299 | <code·class="inline">dist_util:handshake_other_started(HsData)</code>·with·this·record.</p><p><code·class="inline">dist_util:handshake_other_started(HsData)</code>·will·perform·the·handshake·and·if |
| 300 | the·handshake·successfully·completes·this·process·will·then·continue·in·a | 300 | the·handshake·successfully·completes·this·process·will·then·continue·in·a |
| 301 | connection·supervisor·loop·as·long·as·the·connection·is·up.</p></li><li><pre·id="setup"><code·class="makeup·erlang"·translate="no"><span·class="nf">setup</span><span·class="p"·data-group-id=" | 301 | connection·supervisor·loop·as·long·as·the·connection·is·up.</p></li><li><pre·id="setup"><code·class="makeup·erlang"·translate="no"><span·class="nf">setup</span><span·class="p"·data-group-id="7023818951-1">(</span><span·class="n">Node</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Type</span><span·class="p">,</span><span·class="w">·</span><span·class="n">MyNode</span><span·class="p">,</span><span·class="w">·</span><span·c[·...·truncated·by·diffoscope;·len:·153,·SHA:·7a7d132ad4d383eab97041a71b9f633ba0810b54e72e63e0f3abd3727fabd3fc·...·]-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 302 | </span><span·class="err"> </span><span·class="err"> </span><span·class="n">ConnectionSupervisorPid</span></code></pre><p><code·class="inline">setup/5</code>·should·spawn·a·process·that·connects·to·<code·class="inline">Node</code>.·When·connection·has | 302 | </span><span·class="err"> </span><span·class="err"> </span><span·class="n">ConnectionSupervisorPid</span></code></pre><p><code·class="inline">setup/5</code>·should·spawn·a·process·that·connects·to·<code·class="inline">Node</code>.·When·connection·has |
| 303 | been·established·it·should·perform·the·Erlang·distribution·handshake·for·the | 303 | been·established·it·should·perform·the·Erlang·distribution·handshake·for·the |
| 304 | connection.·If·the·handshake·successfully·completes·it·should·continue·to | 304 | connection.·If·the·handshake·successfully·completes·it·should·continue·to |
| 305 | function·as·a·connection·supervisor.·This·process·should·preferably·execute·on | 305 | function·as·a·connection·supervisor.·This·process·should·preferably·execute·on |
| 306 | <code·class="inline">max</code>·priority·and·should·be·linked·to·the·caller.·The | 306 | <code·class="inline">max</code>·priority·and·should·be·linked·to·the·caller.·The |
| 307 | <code·class="inline">dist_util:net_ticker_spawn_options()</code>·function·can·be·called·to·get·spawn | 307 | <code·class="inline">dist_util:net_ticker_spawn_options()</code>·function·can·be·called·to·get·spawn |
| 308 | options·suitable·for·this·process·which·can·be·passed·directly·to | 308 | options·suitable·for·this·process·which·can·be·passed·directly·to |
| Offset 320, 23 lines modified | Offset 320, 23 lines modified | ||
| 320 | may·not·be·the·process·registered·as·<code·class="inline">net_kernel</code>)·and·is·in·this·document | 320 | may·not·be·the·process·registered·as·<code·class="inline">net_kernel</code>)·and·is·in·this·document |
| 321 | identified·as·<code·class="inline">Kernel</code>.</p><p>This·function·should,·besides·spawning·the·connection·supervisor,·also·create | 321 | identified·as·<code·class="inline">Kernel</code>.</p><p>This·function·should,·besides·spawning·the·connection·supervisor,·also·create |
| 322 | a·distribution·controller.·The·distribution·controller·is·either·a·process·or | 322 | a·distribution·controller.·The·distribution·controller·is·either·a·process·or |
| 323 | a·port·which·is·responsible·for·dispatching·traffic.</p><p>The·created·process·should·provide·callbacks·and·other·information·needed·for | 323 | a·port·which·is·responsible·for·dispatching·traffic.</p><p>The·created·process·should·provide·callbacks·and·other·information·needed·for |
| 324 | the·handshake·in·a·<a·href="alt_dist.html#hs_data_record"><code·class="inline">#hs_data{}</code></a>·record·and·call | 324 | the·handshake·in·a·<a·href="alt_dist.html#hs_data_record"><code·class="inline">#hs_data{}</code></a>·record·and·call |
| 325 | <code·class="inline">dist_util:handshake_we_started(HsData)</code>·with·this·record.</p><p><code·class="inline">dist_util:handshake_we_started(HsData)</code>·will·perform·the·handshake·and·the | 325 | <code·class="inline">dist_util:handshake_we_started(HsData)</code>·with·this·record.</p><p><code·class="inline">dist_util:handshake_we_started(HsData)</code>·will·perform·the·handshake·and·the |
| 326 | handshake·successfully·completes·this·process·will·then·continue·in·a | 326 | handshake·successfully·completes·this·process·will·then·continue·in·a |
| 327 | connection·supervisor·loop·as·long·as·the·connection·is·up.</p></li><li><pre·id="close"><code·class="makeup·erlang"·translate="no"><span·class="nf">close</span><span·class="p"·data-group-id=" | 327 | connection·supervisor·loop·as·long·as·the·connection·is·up.</p></li><li><pre·id="close"><code·class="makeup·erlang"·translate="no"><span·class="nf">close</span><span·class="p"·data-group-id="6034121651-1">(</span><span·class="n">Listen</span><span·class="p"·data-group-id="6034121651-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 328 | </span><span·class="err"> </span><span·class="err"> </span><span·class="nf">void</span><span·class="p"·data-group-id=" | 328 | </span><span·class="err"> </span><span·class="err"> </span><span·class="nf">void</span><span·class="p"·data-group-id="6034121651-2">(</span><span·class="p"·data-group-id="6034121651-2">)</span></code></pre><p>Called·in·order·to·close·the·<code·class="inline">Listen</code>·handle·that·originally·was·passed·from |
| 329 | the·<a·href="alt_dist.html#listen"><code·class="inline">listen/1</code></a>·callback.</p></li><li><pre·id="select"><code·class="makeup·erlang"·translate="no"><span·class="nf">select</span><span·class="p"·data-group-id=" | 329 | the·<a·href="alt_dist.html#listen"><code·class="inline">listen/1</code></a>·callback.</p></li><li><pre·id="select"><code·class="makeup·erlang"·translate="no"><span·class="nf">select</span><span·class="p"·data-group-id="5542763094-1">(</span><span·class="n">NodeName</span><span·class="p"·data-group-id="5542763094-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 330 | </span><span·class="err"> </span><span·class="err"> </span><span·class="nf">boolean</span><span·class="p"·data-group-id=" | 330 | </span><span·class="err"> </span><span·class="err"> </span><span·class="nf">boolean</span><span·class="p"·data-group-id="5542763094-2">(</span><span·class="p"·data-group-id="5542763094-2">)</span></code></pre><p>Return·<code·class="inline">true</code>·if·the·host·name·part·of·the·<code·class="inline">NodeName</code>·is·valid·for·use·with |
| 331 | this·protocol;·otherwise,·<code·class="inline">false</code>.</p></li></ul><p>There·are·also·two·optional·functions·that·may·be·exported:</p><ul><li><pre·id="setopts"><code·class="makeup·erlang"·translate="no"><span·class="nf">setopts</span><span·class="p"·data-group-id="0181888897-1">(</span><span·class="n">Listen</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Opts</span><span·class="p"·data-group-id="0181888897-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | ||
| 332 | 331 | this·protocol;·otherwise,·<code·class="inline">false</code>.</p></li></ul><p>There·are·also·two·optional·functions·that·may·be·exported:</p><ul><li><pre·id="setopts"><code·class="makeup·erlang"·translate="no"><span·class="nf">setopts</span><span·class="p"·[·...·truncated·by·diffoscope;·len:·262,·SHA:·ca535e339bce5a6236ccbde280aa2b359285db48e62daeff38966a3413199596·...·] | |
| 332 | </span><span·class="err"> </span><span·class="err"> </span><span·class="ss">ok</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id="7177276582-2">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Error</span><span·class="p"·data-group-id="7177276582-2">}</span></code></pre><p>The·argument·<code·class="inline">Listen</code>·is·the·handle·originally·passed·from·the | ||
| 333 | <a·href="alt_dist.html#listen"><code·class="inline">listen/1</code></a>·callback.·The·argument·<code·class="inline">Opts</code>·is·a·list·of | 333 | <a·href="alt_dist.html#listen"><code·class="inline">listen/1</code></a>·callback.·The·argument·<code·class="inline">Opts</code>·is·a·list·of |
| 334 | options·to·set·on·future·connections.</p></li><li><pre·id="getopts"><code·class="makeup·erlang"·translate="no"><span·class="nf">getopts</span><span·class="p"·data-group-id="7437690945-1">(</span><span·class="n">Listen</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Opts</span><span·class="p"·data-group-id="7437690945-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | ||
| 335 | 334 | options·to·set·on·future·connections.</p></li><li><pre·id="getopts"><code·class="makeup·erlang"·translate="no"><span·class="nf">getopts</span><span·class="p"·data-group-id="2383472248-1">(</span><span·class="n">Listen</span><span·class="p">,</span><span·cl[·...·truncated·by·diffoscope;·len:·164,·SHA:·45e67dd8444696b3759422cf38166644e34f0f5d6675ebe0998d886086b55247·...·] | |
| 335 | </span><span·class="err"> </span><span·class="err"> </span><span·class="p"·data-group-id="2383472248-2">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">OptionValues</span><span·class="p"·data-group-id="2383472248-2">}</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id="2383472248-3">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Error</span><span·class="p"·data-group-id="2383472248-3">}</span></code></pre><p>The·argument·<code·class="inline">Listen</code>·is·the·handle·originally·passed·from·the | ||
| 336 | <a·href="alt_dist.html#listen"><code·class="inline">listen/1</code></a>·callback.·The·argument·<code·class="inline">Opts</code>·is·a·list·of | 336 | <a·href="alt_dist.html#listen"><code·class="inline">listen/1</code></a>·callback.·The·argument·<code·class="inline">Opts</code>·is·a·list·of |
| 337 | options·to·read·for·future·connections.</p></li></ul><p><a·href=""·id="hs_data_record"></a></p><h3·id="the-hs_data-record"·class="section-heading"> | 337 | options·to·read·for·future·connections.</p></li></ul><p><a·href=""·id="hs_data_record"></a></p><h3·id="the-hs_data-record"·class="section-heading"> |
| 338 | ··<a·href="#the-hs_data-record"·class="hover-link"> | 338 | ··<a·href="#the-hs_data-record"·class="hover-link"> |
| 339 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 339 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 340 | ··</a> | 340 | ··</a> |
| 341 | ··<span·class="text">The·#hs_data{}·Record</span> | 341 | ··<span·class="text">The·#hs_data{}·Record</span> |
| 342 | </h3> | 342 | </h3> |
| Offset 350, 44 lines modified | Offset 350, 44 lines modified | ||
| 350 | <a·href="alt_dist.html#accept_connection"><code·class="inline">accept_connection/5</code></a>.</p></li><li><p><strong><code·class="inline"·id="hs_data_other_node">other_node</code></strong>·-·Name·of·the·other·node.·This·field | 350 | <a·href="alt_dist.html#accept_connection"><code·class="inline">accept_connection/5</code></a>.</p></li><li><p><strong><code·class="inline"·id="hs_data_other_node">other_node</code></strong>·-·Name·of·the·other·node.·This·field |
| 351 | is·only·mandatory·when·this·node·initiates·the·connection.·That·is,·when | 351 | is·only·mandatory·when·this·node·initiates·the·connection.·That·is,·when |
| 352 | connection·is·set·up·via·<a·href="alt_dist.html#setup"><code·class="inline">setup/5</code></a>.</p></li><li><p><strong><code·class="inline"·id="hs_data_this_node">this_node</code></strong>·-·The·node·name·of·this·node.</p></li><li><p><strong><code·class="inline"·id="hs_data_socket">socket</code></strong>·-·The·identifier·of·the·distribution | 352 | connection·is·set·up·via·<a·href="alt_dist.html#setup"><code·class="inline">setup/5</code></a>.</p></li><li><p><strong><code·class="inline"·id="hs_data_this_node">this_node</code></strong>·-·The·node·name·of·this·node.</p></li><li><p><strong><code·class="inline"·id="hs_data_socket">socket</code></strong>·-·The·identifier·of·the·distribution |
| 353 | controller.</p></li><li><p><strong><code·class="inline"·id="hs_data_timer">timer</code></strong>·-·The·timer·created·using | 353 | controller.</p></li><li><p><strong><code·class="inline"·id="hs_data_timer">timer</code></strong>·-·The·timer·created·using |
| 354 | <code·class="inline">dist_util:start_timer/1</code>.</p></li><li><p><strong><code·class="inline"·id="hs_data_allowed">allowed</code></strong>·-·Information·passed·as·<code·class="inline">Allowed</code>·to | 354 | <code·class="inline">dist_util:start_timer/1</code>.</p></li><li><p><strong><code·class="inline"·id="hs_data_allowed">allowed</code></strong>·-·Information·passed·as·<code·class="inline">Allowed</code>·to |
| 355 | <code·class="inline">accept_connection/5</code>.·This·field·is·only·mandatory·when·the·remote·node | 355 | <code·class="inline">accept_connection/5</code>.·This·field·is·only·mandatory·when·the·remote·node |
| 356 | initiated·the·connection.·That·is,·when·the·connection·is·set·up·via | 356 | initiated·the·connection.·That·is,·when·the·connection·is·set·up·via |
| 357 | <a·href="alt_dist.html#accept_connection"><code·class="inline">accept_connection/5</code></a>.</p></li><li><p><strong><code·class="inline"·id="hs_data_f_send">f_send</code></strong>·-·A·fun·with·the·following·signature:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">fun</span><span·class="w">·</span><span·class="p"·data-group-id="2240447943-1">(</span><span·class="n">DistCtrlr</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Data</span><span·class="p"·data-group-id="2240447943-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">ok</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id="2240447943-2">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Error</span><span·class="p"·data-group-id="2240447943-2">}</span></code></pre><p>where·<code·class="inline">DistCtrlr</code>·is·the·identifier·of·the·distribution·controller·and·<code·class="inline">Data</code> | ||
| 358 | 357 | <a·href="alt_dist.html#accept_connection"><code·class="inline">accept_connection/5</code></a>.</p></li><li><p><strong><code·class="inline"·id="hs_data_f_send">f_send</code></strong>·-·A·fun·with·the·following·signature:</p><pre><code·class="makeup·erlang"·[·...·truncated·by·diffoscope;·len:·809,·SHA:·c186492d8517dcd66975418be05893b8ac5b546b3267d0a1b7086419d8d94c6b·...·] | |
| 358 | is·io·data·to·pass·to·the·other·side.</p><p>Only·used·during·handshake·phase.</p></li><li><p><strong><code·class="inline"·id="hs_data_f_recv">f_recv</code></strong>·-·A·fun·with·the·following·signature:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">fun</span><span·class="w">·</span><span·class="p"·data-group-id="4075455248-1">(</span><span·class="n">DistCtrlr</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Length</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Timeout</span><span·class="p"·data-group-id="4075455248-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="p"·data-group-id="4075455248-2">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Packet</span><span·class="p"·data-group-id="4075455248-2">}</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id="4075455248-3">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Reason</span><span·class="p"·data-group-id="4075455248-3">}</span></code></pre><p>where·<code·class="inline">DistCtrlr</code>·is·the·identifier·of·the·distribution·controller.·If | ||
| 359 | <code·class="inline">Length</code>·is·<code·class="inline">0</code>,·all·available·bytes·should·be·returned.·If·<code·class="inline">Length·>·0</code>, | 359 | <code·class="inline">Length</code>·is·<code·class="inline">0</code>,·all·available·bytes·should·be·returned.·If·<code·class="inline">Length·>·0</code>, |
| 360 | exactly·<code·class="inline">Length</code>·bytes·should·be·returned,·or·an·error;·possibly·discarding | 360 | exactly·<code·class="inline">Length</code>·bytes·should·be·returned,·or·an·error;·possibly·discarding |
| 361 | less·than·<code·class="inline">Length</code>·bytes·of·data·when·the·connection·is·closed·from·the·other | 361 | less·than·<code·class="inline">Length</code>·bytes·of·data·when·the·connection·is·closed·from·the·other |
| 362 | side.·It·is·used·for·passive·receive·of·data·from·the·other·end.</p><p>Only·used·during·handshake·phase.</p></li><li><p><strong><code·class="inline"·id="hs_data_f_setopts_pre_nodeup">f_setopts_pre_nodeup</code></strong>·-·A·fun·with·the | 362 | side.·It·is·used·for·passive·receive·of·data·from·the·other·end.</p><p>Only·used·during·handshake·phase.</p></li><li><p><strong><code·class="inline"·id="hs_data_f_setopts_pre_nodeup">f_setopts_pre_nodeup</code></strong>·-·A·fun·with·the |
| 363 | following·signature:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">fun</span><span·class="w">·</span><span·class="p"·data-group-id=" | 363 | following·signature:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">fun</span><span·class="w">·</span><span·class="p"·data-group-id="1202282255-1">(</span><span·class="n">DistCtrlr</span><span·class="p"·data-group-id="1202282255-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">ok</span><span·class="w">·</span><span·class="p">|</span[·...·truncated·by·diffoscope;·len:·224,·SHA:·80ebed3103c8f2c198a92009aaa52ed10997ce439e18b09ff9d1e04b679667fd·...·]-2">}</span></code></pre><p>where·<code·class="inline">DistCtrlr</code>·is·the·identifier·of·the·distribution·controller.·Called |
| 364 | just·before·the·distribution·channel·is·taken·up·for·normal·traffic.</p><p>Only·used·during·handshake·phase.</p></li><li><p><strong><code·class="inline"·id="hs_data_f_setopts_post_nodeup">f_setopts_post_nodeup</code></strong>·-·A·fun·with | 364 | just·before·the·distribution·channel·is·taken·up·for·normal·traffic.</p><p>Only·used·during·handshake·phase.</p></li><li><p><strong><code·class="inline"·id="hs_data_f_setopts_post_nodeup">f_setopts_post_nodeup</code></strong>·-·A·fun·with |
| 365 | the·following·signature:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">fun</span><span·class="w">·</span><span·class="p"·data-group-id=" | 365 | the·following·signature:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">fun</span><span·class="w">·</span><span·class="p"·data-group-id="8530856742-1">(</span><span·class="n">DistCtrlr</span><span·class="p"·data-group-id="8530856742-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">ok</span><span·class="w">·</span><span·class="p">|</span[·...·truncated·by·diffoscope;·len:·223,·SHA:·456ae97109f2f5151718cb12f72dc8fc334c7e3752bce42e6108e40b94514ab0·...·]2-2">}</span></code></pre><p>where·<code·class="inline">DistCtrlr</code>·is·the·identifier·of·the·distribution·controller.·Called |
| 366 | just·after·distribution·channel·has·been·taken·up·for·normal·traffic.</p><p>Only·used·during·handshake·phase.</p></li><li><p><strong><code·class="inline"·id="hs_data_f_getll">f_getll</code></strong>·-·A·fun·with·the·following·signature:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">fun</span><span·class="w">·</span><span·class="p"·data-group-id=" | 366 | just·after·distribution·channel·has·been·taken·up·for·normal·traffic.</p><p>Only·used·during·handshake·phase.</p></li><li><p><strong><code·class="inline"·id="hs_data_f_getll">f_getll</code></strong>·-·A·fun·with·the·following·signature:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">fun</span><span·class="w">·</span><span·class="p"·data-group-id="8790685736-1">(</span><span·class="n">DistCtrlr</span><span·class="p"·data-group-id="8790685736-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">ID</span></code></pre><p>where·<code·class="inline">DistCtrlr</code>·is·the·identifier·of·the·distribution·controller·and·<code·class="inline">ID</code>·is |
| 367 | the·identifier·of·the·low·level·entity·that·handles·the·connection·(often | 367 | the·identifier·of·the·low·level·entity·that·handles·the·connection·(often |
| 368 | <code·class="inline">DistCtrlr</code>·itself).</p><p>Only·used·during·handshake·phase.</p></li><li><p><strong><code·class="inline"·id="hs_data_f_address">f_address</code></strong>·-·A·fun·with·the·following·signature:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">fun</span><span·class="w">·</span><span·class="p"·data-group-id="4 | 368 | <code·class="inline">DistCtrlr</code>·itself).</p><p>Only·used·during·handshake·phase.</p></li><li><p><strong><code·class="inline"·id="hs_data_f_address">f_address</code></strong>·-·A·fun·with·the·following·signature:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">fun</span><span·class="w">·</span><span·class="p"·data-group-id="4903322888-1">(</span><span·class="n">DistCtrlr</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Node</span><span·class="p"·data-group-id="4903322888-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">NetAddress</span></code></pre><p>where·<code·class="inline">DistCtrlr</code>·is·the·identifier·of·the·distribution·controller,·<code·class="inline">Node</code>·is |
| 369 | the·node·name·of·the·node·on·the·other·end,·and·<code·class="inline">NetAddress</code>·is·a | 369 | the·node·name·of·the·node·on·the·other·end,·and·<code·class="inline">NetAddress</code>·is·a |
| 370 | <code·class="inline">#net_address{}</code>·record·with·information·about·the·address·for·the·<code·class="inline">Node</code>·on | 370 | <code·class="inline">#net_address{}</code>·record·with·information·about·the·address·for·the·<code·class="inline">Node</code>·on |
| 371 | the·other·end·of·the·connection.·The·<code·class="inline">#net_address{}</code>·record·is·defined·in | 371 | the·other·end·of·the·connection.·The·<code·class="inline">#net_address{}</code>·record·is·defined·in |
| 372 | <code·class="inline">kernel/include/net_address.hrl</code>.</p><p>Only·used·during·handshake·phase.</p></li><li><p><strong><code·class="inline"·id="hs_data_mf_tick">mf_tick</code></strong>·-·A·fun·with·the·following·signature:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">fun</span><span·class="w">·</span><span·class="p"·data-group-id=" | 372 | <code·class="inline">kernel/include/net_address.hrl</code>.</p><p>Only·used·during·handshake·phase.</p></li><li><p><strong><code·class="inline"·id="hs_data_mf_tick">mf_tick</code></strong>·-·A·fun·with·the·following·signature:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">fun</span><span·class="w">·</span><span·class="p"·data-group-id="6628675912-1">(</span><span·class="n">DistCtrlr</span><span·class="p"·data-group-id="6628675912-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="nf">void</span><span·class="p"·data-group-id="6628675912-2">[·...·truncated·by·diffoscope;·len:·49,·SHA:·ace1189c5f17004aa1423d3cc3211fd48e0d812299d944ee80b49c6c9de6980b·...·]-2">)</span></code></pre><p>where·<code·class="inline">DistCtrlr</code>·is·the·identifier·of·the·distribution·controller.·This |
| 373 | function·should·send·information·over·the·connection·that·is·not·interpreted | 373 | function·should·send·information·over·the·connection·that·is·not·interpreted |
| 374 | by·the·other·end·while·increasing·the·statistics·of·received·packets·on·the | 374 | by·the·other·end·while·increasing·the·statistics·of·received·packets·on·the |
| 375 | other·end.·This·is·usually·implemented·by·sending·an·empty·packet.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>It·is·of·vital·importance·that·this·operation·does·not·block·the·caller·for | 375 | other·end.·This·is·usually·implemented·by·sending·an·empty·packet.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>It·is·of·vital·importance·that·this·operation·does·not·block·the·caller·for |
| 376 | a·long·time.·This·since·it·is·called·from·the·connection·supervisor.</p></section><p>Used·when·connection·is·up.</p></li><li><p><strong><code·class="inline"·id="hs_data_mf_getstat">mf_getstat</code></strong>·-·A·fun·with·the·following·signature:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">fun</span><span·class="w">·</span><span·class="p"·data-group-id=" | 376 | a·long·time.·This·since·it·is·called·from·the·connection·supervisor.</p></section><p>Used·when·connection·is·up.</p></li><li><p><strong><code·class="inline"·id="hs_data_mf_getstat">mf_getstat</code></strong>·-·A·fun·with·the·following·signature:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">fun</span><span·class="w">·</span><span·class="p"·data-group-id="2633081467-1">(</span><span·class="n">DistCtrlr</span><span·class="p"·data-group-id="2633081467-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="p"·data-group-id="2633081467-2">{</span><span·class="ss">ok<[·...·truncated·by·diffoscope;·len:·280,·SHA:·2af94f65f2ba2f8c5ecd733983cee93a0f8963112225533aed222448a08510d9·...·]-2">}</span></code></pre><p>where·<code·class="inline">DistCtrlr</code>·is·the·identifier·of·the·distribution·controller,·<code·class="inline">Received</code> |
| 377 | is·received·packets,·<code·class="inline">Sent</code>·is·sent·packets,·and·<code·class="inline">PendSend</code>·is·amount·of·data | 377 | is·received·packets,·<code·class="inline">Sent</code>·is·sent·packets,·and·<code·class="inline">PendSend</code>·is·amount·of·data |
| 378 | in·queue·to·be·sent·(typically·in·bytes,·but·<code·class="inline">dist_util</code>·only·checks·whether | 378 | in·queue·to·be·sent·(typically·in·bytes,·but·<code·class="inline">dist_util</code>·only·checks·whether |
| 379 | the·value·is·non-zero·to·know·there·is·data·in·queue)·or·a·<a·href="erlang.html#t:boolean/0"><code·class="inline">boolean/0</code></a> | 379 | the·value·is·non-zero·to·know·there·is·data·in·queue)·or·a·<a·href="erlang.html#t:boolean/0"><code·class="inline">boolean/0</code></a> |
| 380 | indicating·whether·there·are·packets·in·queue·to·be·sent.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>It·is·of·vital·importance·that·this·operation·does·not·block·the·caller·for | 380 | indicating·whether·there·are·packets·in·queue·to·be·sent.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>It·is·of·vital·importance·that·this·operation·does·not·block·the·caller·for |
| 381 | a·long·time.·This·since·it·is·called·from·the·connection·supervisor.</p></section><p>Used·when·connection·is·up.</p></li><li><p><strong><code·class="inline"·id="hs_data_request_type">request_type</code></strong>·-·The·request·<code·class="inline">Type</code>·as·passed·to | 381 | a·long·time.·This·since·it·is·called·from·the·connection·supervisor.</p></section><p>Used·when·connection·is·up.</p></li><li><p><strong><code·class="inline"·id="hs_data_request_type">request_type</code></strong>·-·The·request·<code·class="inline">Type</code>·as·passed·to |
| 382 | <a·href="alt_dist.html#setup"><code·class="inline">setup/5</code></a>.·This·is·only·mandatory·when·the·connection·has | 382 | <a·href="alt_dist.html#setup"><code·class="inline">setup/5</code></a>.·This·is·only·mandatory·when·the·connection·has |
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| 241 | ······<p·class="built-using"> | 241 | ······<p·class="built-using"> |
| 242 | ········Built·using | 242 | ········Built·using |
| 243 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 243 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 244 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 244 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 245 | ······</p> | 245 | ······</p> |
| 246 | <p>Copyright·©·1996-202 | 246 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 247 | ····</footer> | 247 | ····</footer> |
| 248 | ··</div> | 248 | ··</div> |
| 249 | </main> | 249 | </main> |
| 250 | </div> | 250 | </div> |
| 251 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 251 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 252 | ··<script> | 252 | ··<script> |
| 253 | ··let·initialized·=·false; | 253 | ··let·initialized·=·false; |
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| 643 | ······<p·class="built-using"> | 643 | ······<p·class="built-using"> |
| 644 | ········Built·using | 644 | ········Built·using |
| 645 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 645 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 646 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 646 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 647 | ······</p> | 647 | ······</p> |
| 648 | <p>Copyright·©·1996-202 | 648 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 649 | ····</footer> | 649 | ····</footer> |
| 650 | ··</div> | 650 | ··</div> |
| 651 | </main> | 651 | </main> |
| 652 | </div> | 652 | </div> |
| 653 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 653 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 654 | ··<script> | 654 | ··<script> |
| 655 | ··let·initialized·=·false; | 655 | ··let·initialized·=·false; |
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| 209 | they·have·to·follow·certain·restrictions.·The·convention·for·making | 209 | they·have·to·follow·certain·restrictions.·The·convention·for·making |
| 210 | this·clear·is·to·have·a·comment·above·the·function·that·explains·that | 210 | this·clear·is·to·have·a·comment·above·the·function·that·explains·that |
| 211 | the·function·is·transformed·by·YCF·(see·<code·class="inline">maps_values_1_helper</code>·in | 211 | the·function·is·transformed·by·YCF·(see·<code·class="inline">maps_values_1_helper</code>·in |
| 212 | <code·class="inline">erl_map.c</code>·for·an·example).·If·only·the·transformed·version·of·the | 212 | <code·class="inline">erl_map.c</code>·for·an·example).·If·only·the·transformed·version·of·the |
| 213 | function·is·used,·the·convention·is·to·"comment·out"·the·source·for·the | 213 | function·is·used,·the·convention·is·to·"comment·out"·the·source·for·the |
| 214 | function·by·surrounding·it·with·the·following·<code·class="inline">#ifdef</code>·(this·way,·one | 214 | function·by·surrounding·it·with·the·following·<code·class="inline">#ifdef</code>·(this·way,·one |
| 215 | will·not·get·warnings·about·unused·functions):</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">#</span><span·class="ss">ifdef</span><span·class="w">·</span><span·class="n">INCLUDE_YCF_TRANSFORMED_ONLY_FUNCTIONS</span><span·class="w"> | 215 | will·not·get·warnings·about·unused·functions):</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">#</span><span·class="ss">ifdef</span><span·class="w">·</span><span·class="n">INCLUDE_YCF_TRANSFORMED_ONLY_FUNCTIONS</span><span·class="w"> |
| 216 | </span><span·class="ss">void</span><span·class="w">·</span><span·class="nf">my_fun</span><span·class="p"·data-group-id=" | 216 | </span><span·class="ss">void</span><span·class="w">·</span><span·class="nf">my_fun</span><span·class="p"·data-group-id="5840090326-1">(</span><span·class="p"·data-group-id="5840090326-1">)</span><span·class="w">·</span><span·class="p"·data-group-id="5840090326-2">{</span><span·class="w"> |
| 217 | ····</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> | 217 | ····</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> |
| 218 | </span><span·class="p"·data-group-id=" | 218 | </span><span·class="p"·data-group-id="5840090326-2">}</span><span·class="w"> |
| 219 | </span><span·class="p">#</span><span·class="ss">endif</span><span·class="w">·</span><span·class="o">/</span><span·class="o">*</span><span·class="w">·</span><span·class="n">INCLUDE_YCF_TRANSFORMED_ONLY_FUNCTIONS</span><span·class="w">·</span><span·class="o">*</span><span·class="o">/</span></code></pre><p>While·editing·the·function·one·can·define | 219 | </span><span·class="p">#</span><span·class="ss">endif</span><span·class="w">·</span><span·class="o">/</span><span·class="o">*</span><span·class="w">·</span><span·class="n">INCLUDE_YCF_TRANSFORMED_ONLY_FUNCTIONS</span><span·class="w">·</span><span·class="o">*</span><span·class="o">/</span></code></pre><p>While·editing·the·function·one·can·define |
| 220 | <code·class="inline">INCLUDE_YCF_TRANSFORMED_ONLY_FUNCTIONS</code>·so·that·one·can·see·errors | 220 | <code·class="inline">INCLUDE_YCF_TRANSFORMED_ONLY_FUNCTIONS</code>·so·that·one·can·see·errors |
| 221 | and·warnings·in·the·non-transformed·source.</p><h3·id="where-to-place-ycf-transformed-functions"·class="section-heading"> | 221 | and·warnings·in·the·non-transformed·source.</p><h3·id="where-to-place-ycf-transformed-functions"·class="section-heading"> |
| 222 | ··<a·href="#where-to-place-ycf-transformed-functions"·class="hover-link"> | 222 | ··<a·href="#where-to-place-ycf-transformed-functions"·class="hover-link"> |
| 223 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 223 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 224 | ··</a> | 224 | ··</a> |
| 225 | ··<span·class="text">Where·to·Place·YCF·Transformed·Functions</span> | 225 | ··<span·class="text">Where·to·Place·YCF·Transformed·Functions</span> |
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| 365 | ······<p·class="built-using"> | 365 | ······<p·class="built-using"> |
| 366 | ········Built·using | 366 | ········Built·using |
| 367 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 367 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 368 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 368 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 369 | ······</p> | 369 | ······</p> |
| 370 | <p>Copyright·©·1996-202 | 370 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 371 | ····</footer> | 371 | ····</footer> |
| 372 | ··</div> | 372 | ··</div> |
| 373 | </main> | 373 | </main> |
| 374 | </div> | 374 | </div> |
| 375 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 375 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 376 | ··<script> | 376 | ··<script> |
| 377 | ··let·initialized·=·false; | 377 | ··let·initialized·=·false; |
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| 145 | </h2> | 145 | </h2> |
| 146 | <p>The·code·is·loaded·very·similarly·to·how·it·is·loaded·for·the·interpreter.·Each·beam | 146 | <p>The·code·is·loaded·very·similarly·to·how·it·is·loaded·for·the·interpreter.·Each·beam |
| 147 | file·is·parsed·and·then·optimized·through·the·transformations·described·in | 147 | file·is·parsed·and·then·optimized·through·the·transformations·described·in |
| 148 | <a·href="beam_makeops.html#defining-transformation-rules">beam_makeops</a>.·The·transformations | 148 | <a·href="beam_makeops.html#defining-transformation-rules">beam_makeops</a>.·The·transformations |
| 149 | used·in·BeamAsm·are·much·simpler·than·the·interpreter's,·as·most·of·the | 149 | used·in·BeamAsm·are·much·simpler·than·the·interpreter's,·as·most·of·the |
| 150 | transformations·for·the·interpreter·are·done·only·to·eliminate·the·instruction | 150 | transformations·for·the·interpreter·are·done·only·to·eliminate·the·instruction |
| 151 | dispatch·overhead.</p><p>Then·each·instruction·is·encoded·using·the·C++·functions·in·the | 151 | dispatch·overhead.</p><p>Then·each·instruction·is·encoded·using·the·C++·functions·in·the |
| 152 | <code·class="inline">jit/$ARCH/instr_*.cpp</code>·files.·For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="ss">void</span><span·class="w">·</span><span·class="n">BeamModuleAssembler</span><span·class="p">:</span><span·class="p">:</span><span·class="nf">emit_is_nonempty_list</span><span·class="p"·data-group-id=" | 152 | <code·class="inline">jit/$ARCH/instr_*.cpp</code>·files.·For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="ss">void</span><span·class="w">·</span><span·class="n">BeamModuleAssembler</span><span·class="p">:</span><span·class="p">:</span><span·class="nf">emit_is_nonempty_list</span><span·class="p"·data-group-id="9913462527-1">(</span><span·class="ss">const</span><span·class="w">·</span><span·class="n">ArgVal</span><span·class="w">·</span><span·class="err">&</span><span·class="n">Fail</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">const<[·...·truncated·by·diffoscope;·len:·257,·SHA:·943c4731900955fe9e97b86660820d8a18a42ec881e0483395f5f46f475a3543·...·]-2">{</span><span·class="w"> |
| 153 | ··</span><span·class="ss">a</span><span·class="p">.</span><span·class="nf">test</span><span·class="p"·data-group-id=" | 153 | ··</span><span·class="ss">a</span><span·class="p">.</span><span·class="nf">test</span><span·class="p"·data-group-id="9913462527-3">(</span><span·class="nf">getArgRef</span><span·class="p"·data-group-id="9913462527-4">(</span><span·class="n">Src</span><span·class="p"·data-group-id="9913462527-4">)</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">imm<[·...·truncated·by·diffoscope;·len:·327,·SHA:·463d5086b7614822d1775447fb6435c2f9938469e7e1efed16508470d76a5dea·...·]-3">)</span><span·class="p">;</span><span·class="w"> |
| 154 | ··</span><span·class="ss">a</span><span·class="p">.</span><span·class="nf">jne</span><span·class="p"·data-group-id=" | 154 | ··</span><span·class="ss">a</span><span·class="p">.</span><span·class="nf">jne</span><span·class="p"·data-group-id="9913462527-6">(</span><span·class="ss">labels</span><span·class="p"·data-group-id="9913462527-7">[</span><span·class="n">Fail</span><span·class="p">.</span><span·class="nf">getLabel</span><span·class="p"·data-group-id="9913462527-8">(</span><span·class="p"[·...·truncated·by·diffoscope;·len:·132,·SHA:·07b41b638cdd2febfaaceb43431fbbc5ec03ef58aa02ce87d1aadf344dc8d785·...·]-6">)</span><span·class="p">;</span><span·class="w"> |
| 155 | </span><span·class="p"·data-group-id=" | 155 | </span><span·class="p"·data-group-id="9913462527-2">}</span></code></pre><p><a·href="https://github.com/asmjit/asmjit">asmjit</a>·provides·a·fairly·straightforward |
| 156 | mapping·from·a·C++·function·call·to·the·x86·assembly·instruction.·The·above | 156 | mapping·from·a·C++·function·call·to·the·x86·assembly·instruction.·The·above |
| 157 | instruction·tests·if·the·value·in·the·<code·class="inline">Src</code>·register·is·a·non-empty·list·and·if | 157 | instruction·tests·if·the·value·in·the·<code·class="inline">Src</code>·register·is·a·non-empty·list·and·if |
| 158 | it·is·not·then·it·jumps·to·the·fail·label.</p><p>For·comparison,·the·interpreter·has·8·combinations·and·specializations·of | 158 | it·is·not·then·it·jumps·to·the·fail·label.</p><p>For·comparison,·the·interpreter·has·8·combinations·and·specializations·of |
| 159 | this·implementation·to·minimize·the·instruction·dispatch·overhead·for | 159 | this·implementation·to·minimize·the·instruction·dispatch·overhead·for |
| 160 | common·patterns.</p><p>The·original·register·allocation·done·by·the·Erlang·compiler·is·used·to·manage·the | 160 | common·patterns.</p><p>The·original·register·allocation·done·by·the·Erlang·compiler·is·used·to·manage·the |
| 161 | liveness·of·values·and·the·physical·registers·are·statically·allocated·to·keep | 161 | liveness·of·values·and·the·physical·registers·are·statically·allocated·to·keep |
| 162 | the·necessary·process·state.·At·the·moment·this·is·the·static·register | 162 | the·necessary·process·state.·At·the·moment·this·is·the·static·register |
| 163 | allocation·on·x86-64:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">rbx</span><span·class="p">:</span><span·class="w">·</span><span·class="n">ErtsSchedulerRegisters</span><span·class="w">·</span><span·class="nf">struct</span><span·class="w">·</span><span·class="p"·data-group-id=" | 163 | allocation·on·x86-64:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">rbx</span><span·class="p">:</span><span·class="w">·</span><span·class="n">ErtsSchedulerRegisters</span><span·class="w">·</span><span·class="nf">struct</span><span·class="w">·</span><span·class="p"·data-group-id="2623129933-1">(</span><span·class="ss">contains</span><span·class="w">·</span><span·class="ss">x</span><span·class="o">/</span><span·class="nb">float</span><span·class="w">·</span><span·class="ss">registers</span><span·class="w">·</span><span·class="ow">an[·...·truncated·by·diffoscope;·len:·157,·SHA:·e73bff27e9f197215d580a5ab0ee5750e9d7c2e35d0a3e2d036eec6ca6a3d163·...·]-1">)</span><span·class="w"> |
| 164 | </span><span·class="nc">rbp</span><span·class="p">:</span><span·class="w">·</span><span·class="n">Current</span><span·class="w">·</span><span·class="ss">frame</span><span·class="w">·</span><span·class="ss">pointer</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><span·class="err">`</span><span·class="ss">perf</span><span·class="err">`</span><span·class="w">·</span><span·class="ss">support</span><span·class="w">·</span><span·class="ss">is</span><span·class="w">·</span><span·class="ss">enabled</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">otherwise</span><span·class="w">·</span><span·class="ss">this</span><span·class="w"> | 164 | </span><span·class="nc">rbp</span><span·class="p">:</span><span·class="w">·</span><span·class="n">Current</span><span·class="w">·</span><span·class="ss">frame</span><span·class="w">·</span><span·class="ss">pointer</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><span·class="err">`</span><span·class="ss">perf</span><span·class="err">`</span><span·class="w">·</span><span·class="ss">support</span><span·class="w">·</span><span·class="ss">is</span><span·class="w">·</span><span·class="ss">enabled</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">otherwise</span><span·class="w">·</span><span·class="ss">this</span><span·class="w"> |
| 165 | ·····</span><span·class="ss">is</span><span·class="w">·</span><span·class="ss">an</span><span·class="w">·</span><span·class="ss">optional</span><span·class="w">·</span><span·class="ss">save</span><span·class="w">·</span><span·class="ss">slot</span><span·class="w">·</span><span·class="ss">for</span><span·class="w">·</span><span·class="ss">the</span><span·class="w">·</span><span·class="n">Erlang</span><span·class="w">·</span><span·class="ss">stack</span><span·class="w">·</span><span·class="ss">pointer</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><span·class="ss">executing</span><span·class="w">·</span><span·class="n">C</span><span·class="w"> | 165 | ·····</span><span·class="ss">is</span><span·class="w">·</span><span·class="ss">an</span><span·class="w">·</span><span·class="ss">optional</span><span·class="w">·</span><span·class="ss">save</span><span·class="w">·</span><span·class="ss">slot</span><span·class="w">·</span><span·class="ss">for</span><span·class="w">·</span><span·class="ss">the</span><span·class="w">·</span><span·class="n">Erlang</span><span·class="w">·</span><span·class="ss">stack</span><span·class="w">·</span><span·class="ss">pointer</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><span·class="ss">executing</span><span·class="w">·</span><span·class="n">C</span><span·class="w"> |
| 166 | ·····</span><span·class="ss">code</span><span·class="p">.</span><span·class="w"> | 166 | ·····</span><span·class="ss">code</span><span·class="p">.</span><span·class="w"> |
| 167 | </span><span·class="nc">r12</span><span·class="p">:</span><span·class="w">·</span><span·class="n">Active</span><span·class="w">·</span><span·class="ss">code</span><span·class="w">·</span><span·class="ss">index</span><span·class="w"> | 167 | </span><span·class="nc">r12</span><span·class="p">:</span><span·class="w">·</span><span·class="n">Active</span><span·class="w">·</span><span·class="ss">code</span><span·class="w">·</span><span·class="ss">index</span><span·class="w"> |
| 168 | </span><span·class="nc">r13</span><span·class="p">:</span><span·class="w">·</span><span·class="n">Current</span><span·class="w">·</span><span·class="ss">running</span><span·class="w">·</span><span·class="ss">process</span><span·class="w"> | 168 | </span><span·class="nc">r13</span><span·class="p">:</span><span·class="w">·</span><span·class="n">Current</span><span·class="w">·</span><span·class="ss">running</span><span·class="w">·</span><span·class="ss">process</span><span·class="w"> |
| 169 | </span><span·class="nc">r14</span><span·class="p">:</span><span·class="w">·</span><span·class="n">Remaining</span><span·class="w">·</span><span·class="ss">reductions</span><span·class="w"> | 169 | </span><span·class="nc">r14</span><span·class="p">:</span><span·class="w">·</span><span·class="n">Remaining</span><span·class="w">·</span><span·class="ss">reductions</span><span·class="w"> |
| 170 | </span><span·class="nc">r15</span><span·class="p">:</span><span·class="w">·</span><span·class="n">Erlang</span><span·class="w">·</span><span·class="ss">heap</span><span·class="w">·</span><span·class="ss">pointer</span></code></pre><p>Note·that·all·of·these·are·callee·save·registers·under·the·System·V·and·Windows | 170 | </span><span·class="nc">r15</span><span·class="p">:</span><span·class="w">·</span><span·class="n">Erlang</span><span·class="w">·</span><span·class="ss">heap</span><span·class="w">·</span><span·class="ss">pointer</span></code></pre><p>Note·that·all·of·these·are·callee·save·registers·under·the·System·V·and·Windows |
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| 183 | shared·and·only·the·arguments·to·the·instructions·vary.·Using·as·little·memory·as | 183 | shared·and·only·the·arguments·to·the·instructions·vary.·Using·as·little·memory·as |
| 184 | possible·has·many·advantages;·less·memory·is·used,·loading·time·decreases, | 184 | possible·has·many·advantages;·less·memory·is·used,·loading·time·decreases, |
| 185 | higher·cache·hit-rate.</p><p>In·BeamAsm·we·need·to·achieve·something·similar·since·the·load-time·of·a·module | 185 | higher·cache·hit-rate.</p><p>In·BeamAsm·we·need·to·achieve·something·similar·since·the·load-time·of·a·module |
| 186 | scales·almost·linearly·with·the·amount·of·memory·it·uses.·Early·BeamAsm·prototypes | 186 | scales·almost·linearly·with·the·amount·of·memory·it·uses.·Early·BeamAsm·prototypes |
| 187 | used·about·double·the·amount·of·memory·for·code·as·the·interpreter,·while·current | 187 | used·about·double·the·amount·of·memory·for·code·as·the·interpreter,·while·current |
| 188 | versions·use·about·10%·more.·How·was·this·achieved?</p><p>In·BeamAsm·we·heavily·use·shared·code·fragments·to·try·to·emit·as·much·code·as | 188 | versions·use·about·10%·more.·How·was·this·achieved?</p><p>In·BeamAsm·we·heavily·use·shared·code·fragments·to·try·to·emit·as·much·code·as |
| 189 | possible·as·global·shared·fragments·instead·of·duplicating·the·code·unnecessarily. | 189 | possible·as·global·shared·fragments·instead·of·duplicating·the·code·unnecessarily. |
| 190 | For·instance,·the·return·instruction·looks·something·like·this:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Label</span><span·class="w">·</span><span·class="ss">yield</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">a</span><span·class="p">.</span><span·class="nf">newLabel</span><span·class="p"·data-group-id=" | 190 | For·instance,·the·return·instruction·looks·something·like·this:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Label</span><span·class="w">·</span><span·class="ss">yield</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">a</span><span·class="p">.</span><span·class="nf">newLabel</span><span·class="p"·data-group-id="1416426522-1">(</span><span·class="p"·data-group-id="1416426522-1">)</span><span·class="p">;</span><span·class="w"> |
| 191 | </span><span·class="o">/</span><span·class="o">*</span><span·class="w">·</span><span·class="n">Decrement</span><span·class="w">·</span><span·class="ss">reduction</span><span·class="w">·</span><span·class="ss">counter</span><span·class="w">·</span><span·class="o">*</span><span·class="o">/</span><span·class="w"> | 191 | </span><span·class="o">/</span><span·class="o">*</span><span·class="w">·</span><span·class="n">Decrement</span><span·class="w">·</span><span·class="ss">reduction</span><span·class="w">·</span><span·class="ss">counter</span><span·class="w">·</span><span·class="o">*</span><span·class="o">/</span><span·class="w"> |
| 192 | </span><span·class="ss">a</span><span·class="p">.</span><span·class="nf">dec</span><span·class="p"·data-group-id=" | 192 | </span><span·class="ss">a</span><span·class="p">.</span><span·class="nf">dec</span><span·class="p"·data-group-id="1416426522-2">(</span><span·class="n">FCALLS</span><span·class="p"·data-group-id="1416426522-2">)</span><span·class="p">;</span><span·class="w"> |
| 193 | </span><span·class="o">/</span><span·class="o">*</span><span·class="w">·</span><span·class="n">If</span><span·class="w">·</span><span·class="n">FCALLS</span><span·class="w">·</span><span·class="o"><</span><span·class="w">·</span><span·class="mi">0</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">jump</span><span·class="w">·</span><span·class="ss">to</span><span·class="w">·</span><span·class="ss">the</span><span·class="w">·</span><span·class="ss">yield</span><span·class="o">-</span><span·class="ss">on</span><span·class="o">-</span><span·class="ss">return</span><span·class="w">·</span><span·class="ss">fragment</span><span·class="w">·</span><span·class="o">*</span><span·class="o">/</span><span·class="w"> | 193 | </span><span·class="o">/</span><span·class="o">*</span><span·class="w">·</span><span·class="n">If</span><span·class="w">·</span><span·class="n">FCALLS</span><span·class="w">·</span><span·class="o"><</span><span·class="w">·</span><span·class="mi">0</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">jump</span><span·class="w">·</span><span·class="ss">to</span><span·class="w">·</span><span·class="ss">the</span><span·class="w">·</span><span·class="ss">yield</span><span·class="o">-</span><span·class="ss">on</span><span·class="o">-</span><span·class="ss">return</span><span·class="w">·</span><span·class="ss">fragment</span><span·class="w">·</span><span·class="o">*</span><span·class="o">/</span><span·class="w"> |
| 194 | </span><span·class="ss">a</span><span·class="p">.</span><span·class="nf">jl</span><span·class="p"·data-group-id=" | 194 | </span><span·class="ss">a</span><span·class="p">.</span><span·class="nf">jl</span><span·class="p"·data-group-id="1416426522-3">(</span><span·class="nf">resolve_fragment</span><span·class="p"·data-group-id="1416426522-4">(</span><span·class="ss">ga</span><span·class="p">-></span><span·class="nf">get_dispatch_return</span><span·class="p"·data-group-id="1416426522-5"[·...·truncated·by·diffoscope;·len:·155,·SHA:·b3b9975b9583abe7627a0d1ccd427826985ea658931a6701a1fef971dd29f94c·...·]2-3">)</span><span·class="p">;</span><span·class="w"> |
| 195 | </span><span·class="ss">a</span><span·class="p">.</span><span·class="nf">ret</span><span·class="p"·data-group-id=" | 195 | </span><span·class="ss">a</span><span·class="p">.</span><span·class="nf">ret</span><span·class="p"·data-group-id="1416426522-6">(</span><span·class="p"·data-group-id="1416426522-6">)</span><span·class="p">;</span></code></pre><p>The·code·above·is·not·exactly·what·is·emitted,·but·close·enough.·The·thing·to·note |
| 196 | is·that·the·code·for·doing·the·context·switch·is·never·emitted.·Instead,·we·jump | 196 | is·that·the·code·for·doing·the·context·switch·is·never·emitted.·Instead,·we·jump |
| 197 | to·a·global·fragment·that·all·return·instructions·share.·This·greatly·reduces | 197 | to·a·global·fragment·that·all·return·instructions·share.·This·greatly·reduces |
| 198 | the·amount·of·code·that·has·to·be·emitted·for·each·module.</p><h2·id="running-erlang-code"·class="section-heading"> | 198 | the·amount·of·code·that·has·to·be·emitted·for·each·module.</p><h2·id="running-erlang-code"·class="section-heading"> |
| 199 | ··<a·href="#running-erlang-code"·class="hover-link"> | 199 | ··<a·href="#running-erlang-code"·class="hover-link"> |
| 200 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 200 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 201 | ··</a> | 201 | ··</a> |
| 202 | ··<span·class="text">Running·Erlang·code</span> | 202 | ··<span·class="text">Running·Erlang·code</span> |
| Offset 239, 43 lines modified | Offset 239, 43 lines modified | ||
| 239 | ··<a·href="#running-c-code"·class="hover-link"> | 239 | ··<a·href="#running-c-code"·class="hover-link"> |
| 240 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 240 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 241 | ··</a> | 241 | ··</a> |
| 242 | ··<span·class="text">Running·C·code</span> | 242 | ··<span·class="text">Running·C·code</span> |
| 243 | </h2> | 243 | </h2> |
| 244 | <p>As·Erlang·stacks·can·be·very·small,·we·have·to·switch·over·to·a·different·stack | 244 | <p>As·Erlang·stacks·can·be·very·small,·we·have·to·switch·over·to·a·different·stack |
| 245 | when·we·need·to·execute·C·code·(which·may·expect·a·much·larger·stack).·This·is | 245 | when·we·need·to·execute·C·code·(which·may·expect·a·much·larger·stack).·This·is |
| 246 | done·through·<code·class="inline">emit_enter_runtime</code>·and·<code·class="inline">emit_leave_runtime</code>,·for·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">mov_arg</span><span·class="p"·data-group-id=" | 246 | done·through·<code·class="inline">emit_enter_runtime</code>·and·<code·class="inline">emit_leave_runtime</code>,·for·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">mov_arg</span><span·class="p"·data-group-id="2330771685-1">(</span><span·class="n">ARG4</span><span·class="p">,</span><span·class="w">·</span><span·class="n">NumFree</span><span·class="p"·data-group-id="2330771685-1">)</span><span·class="p">;</span><span·class="w"> |
| 247 | </span><span·class="o">/</span><span·class="o">*</span><span·class="w">·</span><span·class="n">Move</span><span·class="w">·</span><span·class="ss">to</span><span·class="w">·</span><span·class="ss">the</span><span·class="w">·</span><span·class="n">C</span><span·class="w">·</span><span·class="ss">stack</span><span·class="w">·</span><span·class="ow">and</span><span·class="w">·</span><span·class="ss">swap</span><span·class="w">·</span><span·class="ss">out</span><span·class="w">·</span><span·class="ss">our</span><span·class="w">·</span><span·class="ss">current</span><span·class="w">·</span><span·class="ss">reductions</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">stack</span><span·class="o">-</span><span·class="p">,</span><span·class="w">·</span><span·class="ow">and</span><span·class="w"> | 247 | </span><span·class="o">/</span><span·class="o">*</span><span·class="w">·</span><span·class="n">Move</span><span·class="w">·</span><span·class="ss">to</span><span·class="w">·</span><span·class="ss">the</span><span·class="w">·</span><span·class="n">C</span><span·class="w">·</span><span·class="ss">stack</span><span·class="w">·</span><span·class="ow">and</span><span·class="w">·</span><span·class="ss">swap</span><span·class="w">·</span><span·class="ss">out</span><span·class="w">·</span><span·class="ss">our</span><span·class="w">·</span><span·class="ss">current</span><span·class="w">·</span><span·class="ss">reductions</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">stack</span><span·class="o">-</span><span·class="p">,</span><span·class="w">·</span><span·class="ow">and</span><span·class="w"> |
| 248 | ·</span><span·class="o">*</span><span·class="w">·</span><span·class="ss">heap</span><span·class="w">·</span><span·class="ss">pointer</span><span·class="w">·</span><span·class="ss">to</span><span·class="w">·</span><span·class="ss">the</span><span·class="w">·</span><span·class="ss">process</span><span·class="w">·</span><span·class="ss">structure</span><span·class="p">.</span><span·class="w">·</span><span·class="o">*</span><span·class="o">/</span><span·class="w"> | 248 | ·</span><span·class="o">*</span><span·class="w">·</span><span·class="ss">heap</span><span·class="w">·</span><span·class="ss">pointer</span><span·class="w">·</span><span·class="ss">to</span><span·class="w">·</span><span·class="ss">the</span><span·class="w">·</span><span·class="ss">process</span><span·class="w">·</span><span·class="ss">structure</span><span·class="p">.</span><span·class="w">·</span><span·class="o">*</span><span·class="o">/</span><span·class="w"> |
| 249 | </span><span·class="ss">emit_enter_runtime</span><span·class="o"><</span><span·class="n">Update</span><span·class="p">:</span><span·class="p">:</span><span·class="ss">eReductions</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="n">Update</span><span·class="p">:</span><span·class="p">:</span><span·class="ss">eStack</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="n">Update</span><span·class="p">:</span><span·class="p">:</span><span·class="ss">eHeap</span><span·class="o">></span><span·class="p"·data-group-id=" | 249 | </span><span·class="ss">emit_enter_runtime</span><span·class="o"><</span><span·class="n">Update</span><span·class="p">:</span><span·class="p">:</span><span·class="ss">eReductions</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="n">Update</span><span·class="p">:</span><span·class="p">:</span><span·class="ss">eStack</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="n">Update</span><span·class="p">:</span><span·class="p">:</span><span·class="ss">eHeap</span><span·class="o">></span><span·class="p"·data-group-id="2330771685-2">(</span><span·class="p"·data-group-id="2330771685-2">)</span><span·class="p">;</span><span·class="w"> |
| 250 | </span><span·class="ss">a</span><span·class="p">.</span><span·class="nf">mov</span><span·class="p"·data-group-id=" | 250 | </span><span·class="ss">a</span><span·class="p">.</span><span·class="nf">mov</span><span·class="p"·data-group-id="2330771685-3">(</span><span·class="n">ARG1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">c_p</span><span·class="p"·data-group-id="2330771685-3">)</span><span·class="p">;</span><span·class="w"> |
| 251 | </span><span·class="nf">load_x_reg_array</span><span·class="p"·data-group-id=" | 251 | </span><span·class="nf">load_x_reg_array</span><span·class="p"·data-group-id="2330771685-4">(</span><span·class="n">ARG2</span><span·class="p"·data-group-id="2330771685-4">)</span><span·class="p">;</span><span·class="w"> |
| 252 | </span><span·class="nf">make_move_patch</span><span·class="p"·data-group-id=" | 252 | </span><span·class="nf">make_move_patch</span><span·class="p"·data-group-id="2330771685-5">(</span><span·class="n">ARG3</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">lambdas</span><span·class="p"·data-group-id="2330771685-6">[</span><span·class="n">Fun</span><span·class="p">.</span><span·class="nf">getValue[·...·truncated·by·diffoscope;·len:·262,·SHA:·074c2ed1c8a4b36b9dd365e1b97f06e96f76255d89886773b01d04b01fe1b59b·...·]-5">)</span><span·class="p">;</span><span·class="w"> |
| 253 | </span><span·class="o">/</span><span·class="o">*</span><span·class="w">·</span><span·class="n">Call</span><span·class="w">·</span><span·class="err">`</span><span·class="ss">new_fun</span><span·class="err">`</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">asserting</span><span·class="w">·</span><span·class="ss">that</span><span·class="w">·</span><span·class="ss">we</span><span·class="err">'</span><span·class="ss">re</span><span·class="w">·</span><span·class="ss">on</span><span·class="w">·</span><span·class="ss">the</span><span·class="w">·</span><span·class="n">C</span><span·class="w">·</span><span·class="ss">stack</span><span·class="p">.</span><span·class="w">·</span><span·class="o">*</span><span·class="o">/</span><span·class="w"> | 253 | </span><span·class="o">/</span><span·class="o">*</span><span·class="w">·</span><span·class="n">Call</span><span·class="w">·</span><span·class="err">`</span><span·class="ss">new_fun</span><span·class="err">`</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">asserting</span><span·class="w">·</span><span·class="ss">that</span><span·class="w">·</span><span·class="ss">we</span><span·class="err">'</span><span·class="ss">re</span><span·class="w">·</span><span·class="ss">on</span><span·class="w">·</span><span·class="ss">the</span><span·class="w">·</span><span·class="n">C</span><span·class="w">·</span><span·class="ss">stack</span><span·class="p">.</span><span·class="w">·</span><span·class="o">*</span><span·class="o">/</span><span·class="w"> |
| 254 | </span><span·class="ss">runtime_call</span><span·class="o"><</span><span·class="mi">4</span><span·class="o">></span><span·class="p"·data-group-id=" | 254 | </span><span·class="ss">runtime_call</span><span·class="o"><</span><span·class="mi">4</span><span·class="o">></span><span·class="p"·data-group-id="2330771685-8">(</span><span·class="ss">new_fun</span><span·class="p"·data-group-id="2330771685-8">)</span><span·class="p">;</span><span·class="w"> |
| 255 | </span><span·class="o">/</span><span·class="o">*</span><span·class="w">·</span><span·class="n">Move</span><span·class="w">·</span><span·class="ss">back</span><span·class="w">·</span><span·class="ss">to</span><span·class="w">·</span><span·class="ss">the</span><span·class="w">·</span><span·class="n">C</span><span·class="w">·</span><span·class="ss">stack</span><span·class="p">,</span><span·class="w">·</span><span·class="ow">and</span><span·class="w">·</span><span·class="ss">read</span><span·class="w">·</span><span·class="ss">the</span><span·class="w">·</span><span·class="ss">updated</span><span·class="w">·</span><span·class="ss">values</span><span·class="w">·</span><span·class="ss">from</span><span·class="w">·</span><span·class="ss">the</span><span·class="w">·</span><span·class="ss">process</span><span·class="w"> | 255 | </span><span·class="o">/</span><span·class="o">*</span><span·class="w">·</span><span·class="n">Move</span><span·class="w">·</span><span·class="ss">back</span><span·class="w">·</span><span·class="ss">to</span><span·class="w">·</span><span·class="ss">the</span><span·class="w">·</span><span·class="n">C</span><span·class="w">·</span><span·class="ss">stack</span><span·class="p">,</span><span·class="w">·</span><span·class="ow">and</span><span·class="w">·</span><span·class="ss">read</span><span·class="w">·</span><span·class="ss">the</span><span·class="w">·</span><span·class="ss">updated</span><span·class="w">·</span><span·class="ss">values</span><span·class="w">·</span><span·class="ss">from</span><span·class="w">·</span><span·class="ss">the</span><span·class="w">·</span><span·class="ss">process</span><span·class="w"> |
| 256 | ·</span><span·class="o">*</span><span·class="w">·</span><span·class="ss">structure</span><span·class="w">·</span><span·class="o">*</span><span·class="o">/</span><span·class="w"> | 256 | ·</span><span·class="o">*</span><span·class="w">·</span><span·class="ss">structure</span><span·class="w">·</span><span·class="o">*</span><span·class="o">/</span><span·class="w"> |
| 257 | </span><span·class="ss">emit_leave_runtime</span><span·class="o"><</span><span·class="n">Update</span><span·class="p">:</span><span·class="p">:</span><span·class="ss">eReductions</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="n">Update</span><span·class="p">:</span><span·class="p">:</span><span·class="ss">eStack</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="n">Update</span><span·class="p">:</span><span·class="p">:</span><span·class="ss">eHeap</span><span·class="o">></span><span·class="p"·data-group-id=" | 257 | </span><span·class="ss">emit_leave_runtime</span><span·class="o"><</span><span·class="n">Update</span><span·class="p">:</span><span·class="p">:</span><span·class="ss">eReductions</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="n">Update</span><span·class="p">:</span><span·class="p">:</span><span·class="ss">eStack</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="n">Update</span><span·class="p">:</span><span·class="p">:</span><span·class="ss">eHeap</span><span·class="o">></span><span·class="p"·data-group-id="2330771685-9">(</span><span·class="p"·data-group-id="2330771685-9">)</span><span·class="p">;</span><span·class="w"> |
| 258 | </span><span·class="ss">a</span><span·class="p">.</span><span·class="nf">mov</span><span·class="p"·data-group-id=" | 258 | </span><span·class="ss">a</span><span·class="p">.</span><span·class="nf">mov</span><span·class="p"·data-group-id="2330771685-10">(</span><span·class="nf">getXRef</span><span·class="p"·data-group-id="2330771685-11">(</span><span·class="mi">0</span><span·class="p"·data-group-id="2330771685-11">)</span><span·class="p">,</span><span·class="w">·</span><span·class="n">RET</[·...·truncated·by·diffoscope;·len:·46,·SHA:·6cbbfc3b02adcf0557199c10faabcaf8bcb5dc5f04dc45383beddb7d8a82ede3·...·]-10">)</span><span·class="p">;</span></code></pre><p>All·combinations·of·the·<code·class="inline">Update</code>·constants·are·legal,·but·the·ones·given·to |
| 259 | <code·class="inline">emit_leave_runtime</code>·<em>must</em>·be·the·same·as·those·given·to·<code·class="inline">emit_enter_runtime</code>.</p><h2·id="tracing-and-nif-loading"·class="section-heading"> | 259 | <code·class="inline">emit_leave_runtime</code>·<em>must</em>·be·the·same·as·those·given·to·<code·class="inline">emit_enter_runtime</code>.</p><h2·id="tracing-and-nif-loading"·class="section-heading"> |
| 260 | ··<a·href="#tracing-and-nif-loading"·class="hover-link"> | 260 | ··<a·href="#tracing-and-nif-loading"·class="hover-link"> |
| 261 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 261 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 262 | ··</a> | 262 | ··</a> |
| 263 | ··<span·class="text">Tracing·and·NIF·Loading</span> | 263 | ··<span·class="text">Tracing·and·NIF·Loading</span> |
| 264 | </h2> | 264 | </h2> |
| 265 | <p>To·make·tracing·and·NIF·loading·work·there·needs·to·be·a·way·to·intercept | 265 | <p>To·make·tracing·and·NIF·loading·work·there·needs·to·be·a·way·to·intercept |
| 266 | any·function·call.·In·the·interpreter,·this·is·done·by·rewriting·the·loaded | 266 | any·function·call.·In·the·interpreter,·this·is·done·by·rewriting·the·loaded |
| 267 | BEAM·code,·but·this·is·more·complicated·in·BeamAsm·as·we·want·to·have·a·fast | 267 | BEAM·code,·but·this·is·more·complicated·in·BeamAsm·as·we·want·to·have·a·fast |
| 268 | and·compact·way·to·do·this.·This·is·solved·by·emitting·the·code·below·at·the | 268 | and·compact·way·to·do·this.·This·is·solved·by·emitting·the·code·below·at·the |
| 269 | start·of·each·function·(x86·variant·below):</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">··</span><span·class="mi">0</span><span·class="nc">x0</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">short</span><span·class="w">·</span><span·class="ss">jmp</span><span·class="w">·</span><span·class="mi">6</span><span·class="w">·</span><span·class="p"·data-group-id=" | 269 | start·of·each·function·(x86·variant·below):</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">··</span><span·class="mi">0</span><span·class="nc">x0</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">short</span><span·class="w">·</span><span·class="ss">jmp</span><span·class="w">·</span><span·class="mi">6</span><span·class="w">·</span><span·class="p"·data-group-id="7237618200-1">(</span><span·class="ss">address</span><span·class="w">·</span><span·class="mi">0</span><span·class="ss">x8</span><span·class="p"·data-group-id="7237618200-1">)</span><span·class="w"> |
| 270 | ··</span><span·class="mi">0</span><span·class="nc">x2</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">nop</span><span·class="w"> | 270 | ··</span><span·class="mi">0</span><span·class="nc">x2</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">nop</span><span·class="w"> |
| 271 | ··</span><span·class="mi">0</span><span·class="nc">x3</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">relative</span><span·class="w">·</span><span·class="ss">near</span><span·class="w">·</span><span·class="ss">call</span><span·class="w">·</span><span·class="ss">to</span><span·class="w">·</span><span·class="ss">shared</span><span·class="w">·</span><span·class="ss">breakpoint</span><span·class="w">·</span><span·class="ss">fragment</span><span·class="w"> | 271 | ··</span><span·class="mi">0</span><span·class="nc">x3</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">relative</span><span·class="w">·</span><span·class="ss">near</span><span·class="w">·</span><span·class="ss">call</span><span·class="w">·</span><span·class="ss">to</span><span·class="w">·</span><span·class="ss">shared</span><span·class="w">·</span><span·class="ss">breakpoint</span><span·class="w">·</span><span·class="ss">fragment</span><span·class="w"> |
| 272 | ··</span><span·class="mi">0</span><span·class="nc">x8</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">actual</span><span·class="w">·</span><span·class="ss">code</span><span·class="w">·</span><span·class="ss">for</span><span·class="w">·</span><span·class="ss">function</span></code></pre><p>When·code·starts·to·execute·it·will·simply·see·the·<code·class="inline">short·jmp·6</code>·instruction | 272 | ··</span><span·class="mi">0</span><span·class="nc">x8</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">actual</span><span·class="w">·</span><span·class="ss">code</span><span·class="w">·</span><span·class="ss">for</span><span·class="w">·</span><span·class="ss">function</span></code></pre><p>When·code·starts·to·execute·it·will·simply·see·the·<code·class="inline">short·jmp·6</code>·instruction |
| 273 | which·skips·the·prologue·and·starts·to·execute·the·code·directly.</p><p>When·we·want·to·enable·a·certain·breakpoint·we·set·the·jmp·target·to·be·1, | 273 | which·skips·the·prologue·and·starts·to·execute·the·code·directly.</p><p>When·we·want·to·enable·a·certain·breakpoint·we·set·the·jmp·target·to·be·1, |
| 274 | which·means·it·will·land·on·the·call·to·the·shared·breakpoint·fragment.·This | 274 | which·means·it·will·land·on·the·call·to·the·shared·breakpoint·fragment.·This |
| 275 | fragment·checks·the·current·<code·class="inline">breakpoint_flag</code>·stored·in·the·ErtsCodeInfo·of | 275 | fragment·checks·the·current·<code·class="inline">breakpoint_flag</code>·stored·in·the·ErtsCodeInfo·of |
| 276 | this·function,·and·then·calls·<code·class="inline">erts_call_nif_early</code>·and | 276 | this·function,·and·then·calls·<code·class="inline">erts_call_nif_early</code>·and |
| Offset 289, 31 lines modified | Offset 289, 31 lines modified | ||
| 289 | ··<span·class="text">Updating·code</span> | 289 | ··<span·class="text">Updating·code</span> |
| 290 | </h3> | 290 | </h3> |
| 291 | <p>Because·many·environments·enforce·<a·href="https://en.wikipedia.org/wiki/W%5EX"·title="">W^X</a>·it's·not·always·possible·to·write | 291 | <p>Because·many·environments·enforce·<a·href="https://en.wikipedia.org/wiki/W%5EX"·title="">W^X</a>·it's·not·always·possible·to·write |
| 292 | directly·to·the·code·pages.·Because·of·this·we·map·code·twice:·once·with·an | 292 | directly·to·the·code·pages.·Because·of·this·we·map·code·twice:·once·with·an |
| 293 | executable·page·and·once·with·a·writable·page.·Since·they're·backed·by·the | 293 | executable·page·and·once·with·a·writable·page.·Since·they're·backed·by·the |
| 294 | same·memory,·writes·to·the·writable·page·appear·magically·in·the·executable | 294 | same·memory,·writes·to·the·writable·page·appear·magically·in·the·executable |
| 295 | one.</p><p>The·<code·class="inline">erts_writable_code_ptr</code>·function·can·be·used·to·get·writable·pointers | 295 | one.</p><p>The·<code·class="inline">erts_writable_code_ptr</code>·function·can·be·used·to·get·writable·pointers |
| 296 | given·a·module·instance,·provided·that·it·has·been·unsealed·first:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">for</span><span·class="w">·</span><span·class="p"·data-group-id=" | 296 | given·a·module·instance,·provided·that·it·has·been·unsealed·first:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">for</span><span·class="w">·</span><span·class="p"·data-group-id="5133604666-1">(</span><span·class="ss">i</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">0</span><span·class="p">;</span><span·class="w">·</span><span·class="ss">i</span><span·class="w">·</span><span·class="o"[·...·truncated·by·diffoscope;·len:·277,·SHA:·ef6e3f3a083df5b7d1d71b57de8dfe950dc3263ee8a48860c138f86c991546b2·...·]-2">{</span><span·class="w"> |
| 297 | ····</span><span·class="ss">const</span><span·class="w">·</span><span·class="n">ErtsCodeInfo</span><span·class="o">*</span><span·class="w">·</span><span·class="ss">ci_exec</span><span·class="p">;</span><span·class="w"> | 297 | ····</span><span·class="ss">const</span><span·class="w">·</span><span·class="n">ErtsCodeInfo</span><span·class="o">*</span><span·class="w">·</span><span·class="ss">ci_exec</span><span·class="p">;</span><span·class="w"> |
| 298 | ····</span><span·class="n">ErtsCodeInfo</span><span·class="o">*</span><span·class="w">·</span><span·class="ss">ci_rw</span><span·class="p">;</span><span·class="w"> | 298 | ····</span><span·class="n">ErtsCodeInfo</span><span·class="o">*</span><span·class="w">·</span><span·class="ss">ci_rw</span><span·class="p">;</span><span·class="w"> |
| 299 | ····</span><span·class="ss">void</span><span·class="w">·</span><span·class="o">*</span><span·class="ss">w_ptr</span><span·class="p">;</span><span·class="w"> | 299 | ····</span><span·class="ss">void</span><span·class="w">·</span><span·class="o">*</span><span·class="ss">w_ptr</span><span·class="p">;</span><span·class="w"> |
| 300 | ····</span><span·class="nf">erts_unseal_module</span><span·class="p"·data-group-id=" | 300 | ····</span><span·class="nf">erts_unseal_module</span><span·class="p"·data-group-id="5133604666-3">(</span><span·class="err">&</span><span·class="ss">modp</span><span·class="p">-></span><span·class="ss">curr</span><span·class="p"·data-group-id="5133604666-3">)</span><span·class="p">;</span><span·class="w"> |
| 301 | ····</span><span·class="ss">ci_exec</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">code_hdr</span><span·class="p">-></span><span·class="ss">functions</span><span·class="p"·data-group-id=" | 301 | ····</span><span·class="ss">ci_exec</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">code_hdr</span><span·class="p">-></span><span·class="ss">functions</span><span·class="p"·data-group-id="5133604666-4">[</span><span·class="ss">i</span><span·class="p"·data-group-id="5133604666-4">]</span><span·class="p">;</span><span·class="w"> |
| 302 | ····</span><span·class="ss">w_ptr</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">erts_writable_code_ptr</span><span·class="p"·data-group-id=" | 302 | ····</span><span·class="ss">w_ptr</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">erts_writable_code_ptr</span><span·class="p"·data-group-id="5133604666-5">(</span><span·class="err">&</span><span·class="ss">modp</span><span·class="p">-></span><span·class="ss">curr</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">ci_exec</span><span·class="p"·data-group-id="5133604666-5">)</span><span·class="p">;</span><span·class="w"> |
| 303 | ····</span><span·class="ss">ci_rw</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 303 | ····</span><span·class="ss">ci_rw</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="5133604666-6">(</span><span·class="n">ErtsCodeInfo</span><span·class="o">*</span><span·class="p"·data-group-id="5133604666-6">)</span><span·class="ss">w_ptr</span><span·class="p">;</span><span·class="w"> |
| 304 | ····</span><span·class="nf">uninstall_breakpoint</span><span·class="p"·data-group-id=" | 304 | ····</span><span·class="nf">uninstall_breakpoint</span><span·class="p"·data-group-id="5133604666-7">(</span><span·class="ss">ci_rw</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">ci_exec</span><span·class="p"·data-group-id="5133604666-7">)</span><span·class="p">;</span><span·class="w"> |
| 305 | ····</span><span·class="nf">consolidate_bp_data</span><span·class="p"·data-group-id=" | 305 | ····</span><span·class="nf">consolidate_bp_data</span><span·class="p"·data-group-id="5133604666-8">(</span><span·class="ss">modp</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">ci_rw</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">1</span><span·class="p"·data-group-id="5133604666-8">)</span><span·class="p">;</span><span·class="w"> |
| 306 | ····</span><span·class="n">ASSERT</span><span·class="p"·data-group-id=" | 306 | ····</span><span·class="n">ASSERT</span><span·class="p"·data-group-id="5133604666-9">(</span><span·class="ss">ci_rw</span><span·class="p">-></span><span·class="ss">gen_bp</span><span·class="w">·</span><span·class="o">==</span><span·class="w">·</span><span·class="n">NULL</span><span·class="p"·data-group-id="5133604666-9">)</span><span·class="p">;</span><span·class="w"> |
| 307 | ····</span><span·class="nf">erts_seal_module</span><span·class="p"·data-group-id=" | 307 | ····</span><span·class="nf">erts_seal_module</span><span·class="p"·data-group-id="5133604666-10">(</span><span·class="err">&</span><span·class="ss">modp</span><span·class="p">-></span><span·class="ss">curr</span><span·class="p"·data-group-id="5133604666-10">)</span><span·class="p">;</span><span·class="w"> |
| 308 | </span><span·class="p"·data-group-id=" | 308 | </span><span·class="p"·data-group-id="5133604666-2">}</span></code></pre><p>Without·the·module·instance·there's·no·reliable·way·to·figure·out·the·writable |
| 309 | address·of·a·code·page,·and·we·rely·on·<em>address·space·layout·randomization</em> | 309 | address·of·a·code·page,·and·we·rely·on·<em>address·space·layout·randomization</em> |
| 310 | (ASLR)·to·make·it·difficult·to·guess.·On·some·platforms,·security·is·further | 310 | (ASLR)·to·make·it·difficult·to·guess.·On·some·platforms,·security·is·further |
| 311 | enhanced·by·protecting·the·writable·area·from·writes·until·the·module·has·been | 311 | enhanced·by·protecting·the·writable·area·from·writes·until·the·module·has·been |
| 312 | unsealed·by·<code·class="inline">erts_unseal_module</code>.</p><h3·id="export-tracing"·class="section-heading"> | 312 | unsealed·by·<code·class="inline">erts_unseal_module</code>.</p><h3·id="export-tracing"·class="section-heading"> |
| 313 | ··<a·href="#export-tracing"·class="hover-link"> | 313 | ··<a·href="#export-tracing"·class="hover-link"> |
| 314 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 314 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 315 | ··</a> | 315 | ··</a> |
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| 393 | </span><span·class="ss">perf</span><span·class="w">·</span><span·class="ss">script</span><span·class="w">·</span><span·class="o">></span><span·class="w">·</span><span·class="ss">out</span><span·class="p">.</span><span·class="ss">perf</span><span·class="w"> | 393 | </span><span·class="ss">perf</span><span·class="w">·</span><span·class="ss">script</span><span·class="w">·</span><span·class="o">></span><span·class="w">·</span><span·class="ss">out</span><span·class="p">.</span><span·class="ss">perf</span><span·class="w"> |
| 394 | </span><span·class="p">#</span><span·class="p">#</span><span·class="w">·</span><span·class="ss">run</span><span·class="w">·</span><span·class="ss">stackcollapse</span><span·class="w"> | 394 | </span><span·class="p">#</span><span·class="p">#</span><span·class="w">·</span><span·class="ss">run</span><span·class="w">·</span><span·class="ss">stackcollapse</span><span·class="w"> |
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| 403 | ······<p·class="built-using"> | 403 | ······<p·class="built-using"> |
| 404 | ········Built·using | 404 | ········Built·using |
| 405 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 405 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 406 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 406 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 407 | ······</p> | 407 | ······</p> |
| 408 | <p>Copyright·©·1996-202 | 408 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 409 | ····</footer> | 409 | ····</footer> |
| 410 | ··</div> | 410 | ··</div> |
| 411 | </main> | 411 | </main> |
| 412 | </div> | 412 | </div> |
| 413 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 413 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 414 | ··<script> | 414 | ··<script> |
| 415 | ··let·initialized·=·false; | 415 | ··let·initialized·=·false; |
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| 272 | ······<p·class="built-using"> | 272 | ······<p·class="built-using"> |
| 273 | ········Built·using | 273 | ········Built·using |
| 274 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 274 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 275 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 275 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 276 | ······</p> | 276 | ······</p> |
| 277 | <p>Copyright·©·1996-202 | 277 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 278 | ····</footer> | 278 | ····</footer> |
| 279 | ··</div> | 279 | ··</div> |
| 280 | </main> | 280 | </main> |
| 281 | </div> | 281 | </div> |
| 282 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 282 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 283 | ··<script> | 283 | ··<script> |
| 284 | ··let·initialized·=·false; | 284 | ··let·initialized·=·false; |
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| 163 | only·be·done·by·one·loader·process·at·a·time.·A·second·loader·process | 163 | only·be·done·by·one·loader·process·at·a·time.·A·second·loader·process |
| 164 | trying·to·enter·finishing·phase·will·be·suspended·until·the·first | 164 | trying·to·enter·finishing·phase·will·be·suspended·until·the·first |
| 165 | loader·is·done.·This·will·only·block·the·process,·the·scheduler·is | 165 | loader·is·done.·This·will·only·block·the·process,·the·scheduler·is |
| 166 | free·to·schedule·other·work·while·the·second·loader·is·waiting.·(See | 166 | free·to·schedule·other·work·while·the·second·loader·is·waiting.·(See |
| 167 | <code·class="inline">erts_try_seize_code_load_permission</code>·and | 167 | <code·class="inline">erts_try_seize_code_load_permission</code>·and |
| 168 | <code·class="inline">erts_release_code_load_permission</code>).</p><p>The·ability·to·prepare·several·modules·in·parallel·is·not·currently | 168 | <code·class="inline">erts_release_code_load_permission</code>).</p><p>The·ability·to·prepare·several·modules·in·parallel·is·not·currently |
| 169 | used·as·almost·all·code·loading·is·serialized·by·the·code_server | 169 | used·as·almost·all·code·loading·is·serialized·by·the·code_server |
| 170 | process.·The·BIF·interface·is·however·prepared·for·this.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">··</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">prepare_loading</span><span·class="p"·data-group-id=" | 170 | process.·The·BIF·interface·is·however·prepared·for·this.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">··</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">prepare_loading</span><span·class="p"·data-group-id="6705486775-1">(</span><span·class="n">Module</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Code</span><span·class="p"·data-group-id="6705486775-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">LoaderState</span><span·class="w"> |
| 171 | ··</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">finish_loading</span><span·class="p"·data-group-id=" | 171 | ··</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">finish_loading</span><span·class="p"·data-group-id="6705486775-2">(</span><span·class="p"·data-group-id="6705486775-3">[</span><span·class="n">LoaderState</span><span·class="p"·data-group-id="6705486775-3">]</span><span·class="p"·data-group-id="6705486775-2">)</span></code></pre><p>The·idea·is·that·<code·class="inline">prepare_loading</code>·could·be·called·in·parallel·for |
| 172 | different·modules·and·returns·a·"magic·binary"·containing·the·internal | 172 | different·modules·and·returns·a·"magic·binary"·containing·the·internal |
| 173 | state·of·each·prepared·module.·Function·<code·class="inline">finish_loading</code>·could·take·a | 173 | state·of·each·prepared·module.·Function·<code·class="inline">finish_loading</code>·could·take·a |
| 174 | list·of·such·states·and·do·the·finishing·of·all·of·them·in·one·go.</p><p>Currently·we·use·the·legacy·BIF·<code·class="inline">erlang:load_module</code>·which·is·now | 174 | list·of·such·states·and·do·the·finishing·of·all·of·them·in·one·go.</p><p>Currently·we·use·the·legacy·BIF·<code·class="inline">erlang:load_module</code>·which·is·now |
| 175 | implemented·in·Erlang·by·calling·the·above·two·functions·in | 175 | implemented·in·Erlang·by·calling·the·above·two·functions·in |
| 176 | sequence.·Function·<code·class="inline">finish_loading</code>·is·limited·to·only·accepts·a·list | 176 | sequence.·Function·<code·class="inline">finish_loading</code>·is·limited·to·only·accepts·a·list |
| 177 | with·one·module·state·as·we·do·not·yet·use·the·multi·module·loading | 177 | with·one·module·state·as·we·do·not·yet·use·the·multi·module·loading |
| 178 | feature.</p><h2·id="the-finishing-sequence"·class="section-heading"> | 178 | feature.</p><h2·id="the-finishing-sequence"·class="section-heading"> |
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| 315 | ······<p·class="built-using"> | 315 | ······<p·class="built-using"> |
| 316 | ········Built·using | 316 | ········Built·using |
| 317 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 317 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 318 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 318 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 319 | ······</p> | 319 | ······</p> |
| 320 | <p>Copyright·©·1996-202 | 320 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 321 | ····</footer> | 321 | ····</footer> |
| 322 | ··</div> | 322 | ··</div> |
| 323 | </main> | 323 | </main> |
| 324 | </div> | 324 | </div> |
| 325 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 325 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 326 | ··<script> | 326 | ··<script> |
| 327 | ··let·initialized·=·false; | 327 | ··let·initialized·=·false; |
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| 198 | ······<p·class="built-using"> | 198 | ······<p·class="built-using"> |
| 199 | ········Built·using | 199 | ········Built·using |
| 200 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 200 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 201 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 201 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 202 | ······</p> | 202 | ······</p> |
| 203 | <p>Copyright·©·1996-202 | 203 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 204 | ····</footer> | 204 | ····</footer> |
| 205 | ··</div> | 205 | ··</div> |
| 206 | </main> | 206 | </main> |
| 207 | </div> | 207 | </div> |
| 208 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 208 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 209 | ··<script> | 209 | ··<script> |
| 210 | ··let·initialized·=·false; | 210 | ··let·initialized·=·false; |
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| 495 | ······<p·class="built-using"> | 495 | ······<p·class="built-using"> |
| 496 | ········Built·using | 496 | ········Built·using |
| 497 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 497 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 498 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 498 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 499 | ······</p> | 499 | ······</p> |
| 500 | <p>Copyright·©·1996-202 | 500 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 501 | ····</footer> | 501 | ····</footer> |
| 502 | ··</div> | 502 | ··</div> |
| 503 | </main> | 503 | </main> |
| 504 | </div> | 504 | </div> |
| 505 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 505 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 506 | ··<script> | 506 | ··<script> |
| 507 | ··let·initialized·=·false; | 507 | ··let·initialized·=·false; |
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| 216 | ······<p·class="built-using"> | 216 | ······<p·class="built-using"> |
| 217 | ········Built·using | 217 | ········Built·using |
| 218 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 218 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 219 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 219 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 220 | ······</p> | 220 | ······</p> |
| 221 | <p>Copyright·©·1996-202 | 221 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 222 | ····</footer> | 222 | ····</footer> |
| 223 | ··</div> | 223 | ··</div> |
| 224 | </main> | 224 | </main> |
| 225 | </div> | 225 | </div> |
| 226 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 226 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 227 | ··<script> | 227 | ··<script> |
| 228 | ··let·initialized·=·false; | 228 | ··let·initialized·=·false; |
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| 401 | <a·href="erlang.html#put/2"><code·class="inline">put/2</code></a>·and·<a·href="erlang.html#get/1"><code·class="inline">get/1</code></a>·thing)·is·non-empty.</p><p>The·raw·memory·information·can·be·decoded·by·the·Crashdump·Viewer·tool.·You·can | 401 | <a·href="erlang.html#put/2"><code·class="inline">put/2</code></a>·and·<a·href="erlang.html#get/1"><code·class="inline">get/1</code></a>·thing)·is·non-empty.</p><p>The·raw·memory·information·can·be·decoded·by·the·Crashdump·Viewer·tool.·You·can |
| 402 | then·see·the·stack·dump,·the·message·queue·(if·any),·and·the·dictionary·(if | 402 | then·see·the·stack·dump,·the·message·queue·(if·any),·and·the·dictionary·(if |
| 403 | any).</p><p>The·stack·dump·is·a·dump·of·the·Erlang·process·stack.·Most·of·the·live·data | 403 | any).</p><p>The·stack·dump·is·a·dump·of·the·Erlang·process·stack.·Most·of·the·live·data |
| 404 | (that·is,·variables·currently·in·use)·are·placed·on·the·stack;·thus·this·can·be | 404 | (that·is,·variables·currently·in·use)·are·placed·on·the·stack;·thus·this·can·be |
| 405 | interesting.·One·has·to·"guess"·what·is·what,·but·as·the·information·is | 405 | interesting.·One·has·to·"guess"·what·is·what,·but·as·the·information·is |
| 406 | symbolic,·thorough·reading·of·this·information·can·be·useful.·As·an·example,·we | 406 | symbolic,·thorough·reading·of·this·information·can·be·useful.·As·an·example,·we |
| 407 | can·find·the·state·variable·of·the·Erlang·primitive·loader·online·<code·class="inline">(5)</code>·and | 407 | can·find·the·state·variable·of·the·Erlang·primitive·loader·online·<code·class="inline">(5)</code>·and |
| 408 | <code·class="inline">(6)</code>·in·the·following·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 408 | <code·class="inline">(6)</code>·in·the·following·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="8793769510-1">(</span><span·class="mi">1</span><span·class="p"·data-group-id="8793769510-1">)</span><span·class="w">··</span><span·class="mi">3</span><span·class="ss">cac44</span><span·class="w">···</span><span·class="n">Return</span><span·class="w">·</spa[·...·truncated·by·diffoscope;·len:·426,·SHA:·cd045db5e0a97631db52540398b34650b65e7ae2a63d11d4b7075496de4f3d0f·...·]-2">)</span><span·class="w"> |
| 409 | </span><span·class="p"·data-group-id="0226746081-3">(</span><span·class="mi">2</span><span·class="p"·data-group-id="0226746081-3">)</span><span·class="w">··</span><span·class="nf">y</span><span·class="p"·data-group-id="0226746081-4">(</span><span·class="mi">0</span><span·class="p"·data-group-id="0226746081-4">)</span><span·class="w">·····</span><span·class="p"·data-group-id="0226746081-5">[</span><span·class="s">"/view/siri_r10_dev/clearcase/otp/erts/lib/kernel/ebin"</span><span·class="p">,</span><span·class="w"> | ||
| 410 | </span><span·class="p"·data-group-id=" | 409 | </span><span·class="p"·data-group-id="8793769510-3">(</span><span·class="mi">2</span><span·class="p"·data-group-id="8793769510-3">)</span><span·class="w">··</span><span·class="nf">y</span><span·class="p"·data-group-id="8793769510-4">(</span><span·class="mi">0</span><span·class="p"·data-group-i[·...·truncated·by·diffoscope;·len:·211,·SHA:·6a3198035dea360fe60f67eb7ee676c25ca16449bc2e43deaebd3d71c524bf81·...·]</span><span·class="w"> |
| 410 | </span><span·class="p"·data-group-id="8793769510-6">(</span><span·class="mi">3</span><span·class="p"·data-group-id="8793769510-6">)</span><span·class="w">············</span><span·class="s">"/view/siri_r10_dev/clearcase/otp/erts/lib/stdlib/ebin"</span><span·class="p"·data-group-id="8793769510-5">]</span><span·class="w"> | ||
| 411 | </span><span·class="p"·data-group-id=" | 411 | </span><span·class="p"·data-group-id="8793769510-7">(</span><span·class="mi">4</span><span·class="p"·data-group-id="8793769510-7">)</span><span·class="w">··</span><span·class="nf">y</span><span·class="p"·data-group-id="8793769510-8">(</span><span·class="mi">1</span><span·class="p"·data-group-i[·...·truncated·by·diffoscope;·len:·13,·SHA:·d54faf44ef6a24fe0e80fa98af3b864ad2dc657a003a1410a51d2e44ca95cff3·...·]-8">)</span><span·class="w">·····</span><span·class="o"><</span><span·class="mf">0.1</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="w"> |
| 412 | </span><span·class="p"·data-group-id=" | 412 | </span><span·class="p"·data-group-id="8793769510-9">(</span><span·class="mi">5</span><span·class="p"·data-group-id="8793769510-9">)</span><span·class="w">··</span><span·class="nf">y</span><span·class="p"·data-group-id="8793769510-10">(</span><span·class="mi">2</span><span·class="p"·data-group-[·...·truncated·by·diffoscope;·len:·257,·SHA:·67336a282ff6e75c35209cbc0d19e61744a62fc655ef7af6c54aa1deebb2dd5e·...·]-12">]</span><span·class="p">,</span><span·class="ss">none</span><span·class="p">,</span><span·class="p">#</span><span·class="n">Fun</span><span·class="o"><</span><span·class="ss">erl_prim_loader</span><span·class="p">.</span><span·class="mf">6.7085890</span><span·class="o">></span><span·class="p">,</span><span·class="ss">undefined</span><span·class="p">,</span><span·class="p">#</span><span·class="n">Fun</span><span·class="o"><</span><span·class="ss">erl_prim_loader</span><span·class="p">.</span><span·class="mf">7.9000327</span><span·class="o">></span><span·class="p">,</span><span·class="w"> |
| 413 | </span><span·class="p"·data-group-id=" | 413 | </span><span·class="p"·data-group-id="8793769510-13">(</span><span·class="mi">6</span><span·class="p"·data-group-id="8793769510-13">)</span><span·class="w">············</span><span·class="p">#</span><span·class="n">Fun</span><span·class="o"><</span><span·class="ss">erl_prim_loader</span><sp[·...·truncated·by·diffoscope;·len:·561,·SHA:·abbbf4f2313995cfea2b7799ae4a58914d6d78a5b9b511e349192657f009f789·...·]-11">}</span><span·class="w"> |
| 414 | </span><span·class="p"·data-group-id=" | 414 | </span><span·class="p"·data-group-id="8793769510-14">(</span><span·class="mi">7</span><span·class="p"·data-group-id="8793769510-14">)</span><span·class="w">··</span><span·class="nf">y</span><span·class="p"·data-group-id="8793769510-15">(</span><span·class="mi">3</span><span·class="p"·data-grou[·...·truncated·by·diffoscope;·len:·16,·SHA:·b12e9df837188ae50e800fee14b334a84eaf906aa61aad95f1746c5961ceaa61·...·]-15">)</span><span·class="w">·····</span><span·class="ss">infinity</span></code></pre><p>When·interpreting·the·data·for·a·process,·it·is·helpful·to·know·that·anonymous |
| 415 | function·objects·(funs)·are·given·the·following:</p><ul><li>A·name·constructed·from·the·name·of·the·function·in·which·they·are·created</li><li>A·number·(starting·with·0)·indicating·the·number·of·that·fun·within·that | 415 | function·objects·(funs)·are·given·the·following:</p><ul><li>A·name·constructed·from·the·name·of·the·function·in·which·they·are·created</li><li>A·number·(starting·with·0)·indicating·the·number·of·that·fun·within·that |
| 416 | function</li></ul><h2·id="atoms"·class="section-heading"> | 416 | function</li></ul><h2·id="atoms"·class="section-heading"> |
| 417 | ··<a·href="#atoms"·class="hover-link"> | 417 | ··<a·href="#atoms"·class="hover-link"> |
| 418 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 418 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 419 | ··</a> | 419 | ··</a> |
| 420 | ··<span·class="text">Atoms</span> | 420 | ··<span·class="text">Atoms</span> |
| 421 | </h2> | 421 | </h2> |
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| 473 | ······<p·class="built-using"> | 473 | ······<p·class="built-using"> |
| 474 | ········Built·using | 474 | ········Built·using |
| 475 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 475 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 476 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 476 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 477 | ······</p> | 477 | ······</p> |
| 478 | <p>Copyright·©·1996-202 | 478 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 479 | ····</footer> | 479 | ····</footer> |
| 480 | ··</div> | 480 | ··</div> |
| 481 | </main> | 481 | </main> |
| 482 | </div> | 482 | </div> |
| 483 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 483 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 484 | ··<script> | 484 | ··<script> |
| 485 | ··let·initialized·=·false; | 485 | ··let·initialized·=·false; |
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| 338 | ······<p·class="built-using"> | 338 | ······<p·class="built-using"> |
| 339 | ········Built·using | 339 | ········Built·using |
| 340 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 340 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 341 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 341 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 342 | ······</p> | 342 | ······</p> |
| 343 | <p>Copyright·©·1996-202 | 343 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 344 | ····</footer> | 344 | ····</footer> |
| 345 | ··</div> | 345 | ··</div> |
| 346 | </main> | 346 | </main> |
| 347 | </div> | 347 | </div> |
| 348 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 348 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 349 | ··<script> | 349 | ··<script> |
| 350 | ··let·initialized·=·false; | 350 | ··let·initialized·=·false; |
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| 364 | <p>Before·a·driver·can·be·called·from·Erlang,·it·must·be·loaded·and·opened.·Loading | 364 | <p>Before·a·driver·can·be·called·from·Erlang,·it·must·be·loaded·and·opened.·Loading |
| 365 | is·done·using·the·<a·href="../../../lib/kernel-10.3/doc/html/erl_ddll.html"><code·class="inline">erl_ddll</code></a>·module·(the·<a·href="../../../lib/kernel-10.3/doc/html/erl_ddll.html"><code·class="inline">erl_ddll</code></a>·driver·that·loads·dynamic | 365 | is·done·using·the·<a·href="../../../lib/kernel-10.3/doc/html/erl_ddll.html"><code·class="inline">erl_ddll</code></a>·module·(the·<a·href="../../../lib/kernel-10.3/doc/html/erl_ddll.html"><code·class="inline">erl_ddll</code></a>·driver·that·loads·dynamic |
| 366 | driver·is·actually·a·driver·itself).·If·loading·is·successful,·the·port·can·be | 366 | driver·is·actually·a·driver·itself).·If·loading·is·successful,·the·port·can·be |
| 367 | opened·with·<a·href="erlang.html#open_port/2"><code·class="inline">open_port/2</code></a>.·The·port·name·must·match·the·name·of | 367 | opened·with·<a·href="erlang.html#open_port/2"><code·class="inline">open_port/2</code></a>.·The·port·name·must·match·the·name·of |
| 368 | the·shared·library·and·the·name·in·the·driver·entry·structure.</p><p>When·the·port·has·been·opened,·the·driver·can·be·called.·In·the·<code·class="inline">pg_sync</code> | 368 | the·shared·library·and·the·name·in·the·driver·entry·structure.</p><p>When·the·port·has·been·opened,·the·driver·can·be·called.·In·the·<code·class="inline">pg_sync</code> |
| 369 | example,·we·do·not·have·any·data·from·the·port,·only·the·return·value·from·the | 369 | example,·we·do·not·have·any·data·from·the·port,·only·the·return·value·from·the |
| 370 | <a·href="erlang.html#port_control/3"><code·class="inline">port_control/3</code></a>.</p><p>The·following·code·is·the·Erlang·part·of·the·synchronous·postgres·driver, | 370 | <a·href="erlang.html#port_control/3"><code·class="inline">port_control/3</code></a>.</p><p>The·following·code·is·the·Erlang·part·of·the·synchronous·postgres·driver, |
| 371 | <code·class="inline">pg_sync.erl</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 371 | <code·class="inline">pg_sync.erl</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="8232258412-1">(</span><span·class="ss">pg_sync</span><span·class="p"·data-group-id="8232258412-1">)</span><span·class="p">.</span><span·class="w"> |
| 372 | </span><span·class="w"> | 372 | </span><span·class="w"> |
| 373 | </span><span·class="p">-</span><span·class="na">define</span><span·class="p"·data-group-id=" | 373 | </span><span·class="p">-</span><span·class="na">define</span><span·class="p"·data-group-id="8232258412-2">(</span><span·class="n">DRV_CONNECT</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">1</span><span·class="p"·data-group-id="8232258412-2">)</span><span·class="p">.</span><span·class="w"> |
| 374 | </span><span·class="p">-</span><span·class="na">define</span><span·class="p"·data-group-id=" | 374 | </span><span·class="p">-</span><span·class="na">define</span><span·class="p"·data-group-id="8232258412-3">(</span><span·class="n">DRV_DISCONNECT</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">2</span><span·class="p"·data-group-id="8232258412-3">)</span><span·class="p">.</span><span·class="w"> |
| 375 | </span><span·class="p">-</span><span·class="na">define</span><span·class="p"·data-group-id=" | 375 | </span><span·class="p">-</span><span·class="na">define</span><span·class="p"·data-group-id="8232258412-4">(</span><span·class="n">DRV_SELECT</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">3</span><span·class="p"·data-group-id="8232258412-4">)</span><span·class="p">.</span><span·class="w"> |
| 376 | </span><span·class="w"> | 376 | </span><span·class="w"> |
| 377 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 377 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="8232258412-5">(</span><span·class="p"·data-group-id="8232258412-6">[</span><span·class="ss">connect</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">disconnect</span><span·class="p">/</[·...·truncated·by·diffoscope;·len:·251,·SHA:·b4964e388d36d3dd4737ff91a859e7111353978180e68e0d343336e85fab9de9·...·]-5">)</span><span·class="p">.</span><span·class="w"> |
| 378 | </span><span·class="nf">connect</span><span·class="p"·data-group-id=" | 378 | </span><span·class="nf">connect</span><span·class="p"·data-group-id="8232258412-7">(</span><span·class="n">ConnectStr</span><span·class="p"·data-group-id="8232258412-7">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 379 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">erl_ddll</span><span·class="p">:</span><span·class="nf">load_driver</span><span·class="p"·data-group-id=" | 379 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">erl_ddll</span><span·class="p">:</span><span·class="nf">load_driver</span><span·class="p"·data-group-id="8232258412-8">(</span><span·class="s">"."</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"pg_sync"</span><span·class="p"·data-group-id="8232258412-8">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 380 | ········</span><span·class="ss">ok</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">ok</span><span·class="p">;</span><span·class="w"> | 380 | ········</span><span·class="ss">ok</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">ok</span><span·class="p">;</span><span·class="w"> |
| 381 | ········</span><span·class="p"·data-group-id=" | 381 | ········</span><span·class="p"·data-group-id="8232258412-9">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">already_loaded</span><span·class="p"·data-group-id="8232258412-9">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">ok</span><span·class="p">;</span><span·class="w"> |
| 382 | ········</span><span·class="n">E</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="nf">exit</span><span·class="p"·data-group-id=" | 382 | ········</span><span·class="n">E</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="nf">exit</span><span·class="p"·data-group-id="8232258412-10">(</span><span·class="p"·data-group-id="8232258412-11">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="w">·</span><span·class="n">E</span><span·class="p"·data-group-id="8232258412-11">}</span><span·class="p"·data-gro[·...·truncated·by·diffoscope;·len:·17,·SHA:·fe401208251ffcc4171839d3a53abc139d802f287ed87371d0ea40749f86c98c·...·]-10">)</span><span·class="w"> |
| 383 | ····</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> | 383 | ····</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> |
| 384 | ····</span><span·class="n">Port</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">open_port</span><span·class="p"·data-group-id="5987993045-12">(</span><span·class="p"·data-group-id="5987993045-13">{</span><span·class="nb">spawn</span><span·class="p">,</span><span·class="w">·</span><span·class="o">?</span><span·class="n">MODULE</span><span·class="p"·data-group-id="5987993045-13">}</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="5987993045-14">[</span><span·class="p"·data-group-id="5987993045-14">]</span><span·class="p"·data-group-id="5987993045-12">)</span><span·class="p">,</span><span·class="w"> | ||
| 385 | ····</span><span·class=" | 384 | ····</span><span·class="n">Port</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">open_port</span><span·class="p"·data-group-id="8232258412-12">(</span><span·class="p"·data-group-id="8232258412-13">{</span><span·class="nb">spawn</span>[·...·truncated·by·diffoscope;·len:·382,·SHA:·dae7a1c2f061bf9333f99597d412ee0610dca46a7f56afae606331b7b6be8a68·...·]</span><span·class="w"> |
| 385 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nf">binary_to_term</span><span·class="p"·data-group-id="8232258412-15">(</span><span·class="nf">port_control</span><span·class="p"·data-group-id="8232258412-16">(</span><span·class="n">Port</span><span·class="p">,</span><span·class="w">·</span><span·class="o">?</span><span·class="n">DRV_CONNECT</span><span·class="p">,</span><span·class="w">·</span><span·class="n">ConnectStr</span><span·class="p"·data-group-id="8232258412-16">)</span><span·class="p"·data-group-id="8232258412-15">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> | ||
| 386 | ········</span><span·class="ss">ok</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="p"·data-group-id=" | 386 | ········</span><span·class="ss">ok</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="p"·data-group-id="8232258412-17">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Port</span><span·class="p"·data-group-id="8232258412-17">}</span><span·class="p">;</span><span·class="w"> |
| 387 | ········</span><span·class="n">Error</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">Error</span><span·class="w"> | 387 | ········</span><span·class="n">Error</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">Error</span><span·class="w"> |
| 388 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> | 388 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> |
| 389 | </span><span·class="nf">disconnect</span><span·class="p"·data-group-id=" | 389 | </span><span·class="nf">disconnect</span><span·class="p"·data-group-id="8232258412-18">(</span><span·class="n">Port</span><span·class="p"·data-group-id="8232258412-18">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 390 | ····</span><span·class="n">R</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">binary_to_term</span><span·class="p"·data-group-id=" | 390 | ····</span><span·class="n">R</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">binary_to_term</span><span·class="p"·data-group-id="8232258412-19">(</span><span·class="nf">port_control</span><span·class="p"·data-group-id="8232258412-20">(</span><span·class="n">Port</span><span·class="p">,</span><span·class="w">·</span><span·class="o">?</span><span·class="n">DRV_DISCONNECT</span><span·c[·...·truncated·by·diffoscope;·len:·171,·SHA:·e937c11b716ec1fa61051c6de35bc3ad227d77a97447f8c0c9b6a86084a327dc·...·]-19">)</span><span·class="p">,</span><span·class="w"> |
| 391 | ····</span><span·class="nf">port_close</span><span·class="p"·data-group-id=" | 391 | ····</span><span·class="nf">port_close</span><span·class="p"·data-group-id="8232258412-21">(</span><span·class="n">Port</span><span·class="p"·data-group-id="8232258412-21">)</span><span·class="p">,</span><span·class="w"> |
| 392 | ····</span><span·class="n">R</span><span·class="p">.</span><span·class="w"> | 392 | ····</span><span·class="n">R</span><span·class="p">.</span><span·class="w"> |
| 393 | </span><span·class="nf">select</span><span·class="p"·data-group-id=" | 393 | </span><span·class="nf">select</span><span·class="p"·data-group-id="8232258412-22">(</span><span·class="n">Port</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Query</span><span·class="p"·data-group-id="8232258412-22">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 394 | ····</span><span·class="nf">binary_to_term</span><span·class="p"·data-group-id=" | 394 | ····</span><span·class="nf">binary_to_term</span><span·class="p"·data-group-id="8232258412-23">(</span><span·class="nf">port_control</span><span·class="p"·data-group-id="8232258412-24">(</span><span·class="n">Port</span><span·class="p">,</span><span·class="w">·</span><span·class="o">?</span><span·class="n">DRV_SELECT</span><span·class[·...·truncated·by·diffoscope;·len:·160,·SHA:·239306bba20e7e36104dcec0b6976b610681fff8e6875c29270979c51c6ee2a4·...·]-23">)</span><span·class="p">.</span></code></pre><p>The·API·is·simple:</p><ul><li><code·class="inline">connect/1</code>·loads·the·driver,·opens·it,·and·logs·on·to·the·database,·returning |
| 395 | the·Erlang·port·if·successful.</li><li><code·class="inline">select/2</code>·sends·a·query·to·the·driver·and·returns·the·result.</li><li><code·class="inline">disconnect/1</code>·closes·the·database·connection·and·the·driver.·(However,·it | 395 | the·Erlang·port·if·successful.</li><li><code·class="inline">select/2</code>·sends·a·query·to·the·driver·and·returns·the·result.</li><li><code·class="inline">disconnect/1</code>·closes·the·database·connection·and·the·driver.·(However,·it |
| 396 | does·not·unload·it.)</li></ul><p>The·connection·string·is·to·be·a·connection·string·for·postgres.</p><p>The·driver·is·loaded·with·<a·href="../../../lib/kernel-10.3/doc/html/erl_ddll.html#load_driver/2"><code·class="inline">erl_ddll:load_driver/2</code></a>.·If·this·is·successful,·or·if | 396 | does·not·unload·it.)</li></ul><p>The·connection·string·is·to·be·a·connection·string·for·postgres.</p><p>The·driver·is·loaded·with·<a·href="../../../lib/kernel-10.3/doc/html/erl_ddll.html#load_driver/2"><code·class="inline">erl_ddll:load_driver/2</code></a>.·If·this·is·successful,·or·if |
| 397 | it·is·already·loaded,·it·is·opened.·This·will·call·the·<code·class="inline">start</code>·function·in·the | 397 | it·is·already·loaded,·it·is·opened.·This·will·call·the·<code·class="inline">start</code>·function·in·the |
| 398 | driver.</p><p>We·use·the·<a·href="erlang.html#port_control/3"><code·class="inline">port_control/3</code></a>·function·for·all·calls·into·the | 398 | driver.</p><p>We·use·the·<a·href="erlang.html#port_control/3"><code·class="inline">port_control/3</code></a>·function·for·all·calls·into·the |
| 399 | driver.·The·result·from·the·driver·is·returned·immediately·and·converted·to | 399 | driver.·The·result·from·the·driver·is·returned·immediately·and·converted·to |
| 400 | terms·by·calling·<a·href="erlang.html#binary_to_term/1"><code·class="inline">binary_to_term/1</code></a>.·(We·trust·that·the | 400 | terms·by·calling·<a·href="erlang.html#binary_to_term/1"><code·class="inline">binary_to_term/1</code></a>.·(We·trust·that·the |
| 401 | terms·returned·from·the·driver·are·well-formed,·otherwise·the·<a·href="erlang.html#binary_to_term/1"><code·class="inline">binary_to_term/1</code></a> | 401 | terms·returned·from·the·driver·are·well-formed,·otherwise·the·<a·href="erlang.html#binary_to_term/1"><code·class="inline">binary_to_term/1</code></a> |
| Offset 536, 51 lines modified | Offset 536, 51 lines modified | ||
| 536 | successful,·or·error·if·it·is·not.·If·the·connection·is·not·yet·established,·we | 536 | successful,·or·error·if·it·is·not.·If·the·connection·is·not·yet·established,·we |
| 537 | simply·return;·<code·class="inline">ready_io</code>·is·called·again.</p><p>If·we·have·a·result·from·a·connect,·indicated·by·having·data·in·the·<code·class="inline">x</code>·buffer, | 537 | simply·return;·<code·class="inline">ready_io</code>·is·called·again.</p><p>If·we·have·a·result·from·a·connect,·indicated·by·having·data·in·the·<code·class="inline">x</code>·buffer, |
| 538 | we·no·longer·need·to·select·on·output·(<a·href="../../../erts-16.0/doc/html/driver_entry.html#ready_output"·title=""><code·class="inline">ready_output</code></a>),·so·we·remove·this·by | 538 | we·no·longer·need·to·select·on·output·(<a·href="../../../erts-16.0/doc/html/driver_entry.html#ready_output"·title=""><code·class="inline">ready_output</code></a>),·so·we·remove·this·by |
| 539 | calling·<a·href="../../../erts-16.0/doc/html/erl_driver.html#driver_select"·title=""><code·class="inline">driver_select</code></a>.</p><p>If·we·are·not·connecting,·we·wait·for·results·from·a·<code·class="inline">PQsendQuery</code>,·so·we·get | 539 | calling·<a·href="../../../erts-16.0/doc/html/erl_driver.html#driver_select"·title=""><code·class="inline">driver_select</code></a>.</p><p>If·we·are·not·connecting,·we·wait·for·results·from·a·<code·class="inline">PQsendQuery</code>,·so·we·get |
| 540 | the·result·and·return·it.·The·encoding·is·done·with·the·same·functions·as·in·the | 540 | the·result·and·return·it.·The·encoding·is·done·with·the·same·functions·as·in·the |
| 541 | earlier·example.</p><p>Error·handling·is·to·be·added·here,·for·example,·checking·that·the·socket·is | 541 | earlier·example.</p><p>Error·handling·is·to·be·added·here,·for·example,·checking·that·the·socket·is |
| 542 | still·open,·but·this·is·only·a·simple·example.</p><p>The·Erlang·part·of·the·asynchronous·driver·consists·of·the·sample·file | 542 | still·open,·but·this·is·only·a·simple·example.</p><p>The·Erlang·part·of·the·asynchronous·driver·consists·of·the·sample·file |
| 543 | <code·class="inline">pg_async.erl</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 543 | <code·class="inline">pg_async.erl</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="4372985825-1">(</span><span·class="ss">pg_async</span><span·class="p"·data-group-id="4372985825-1">)</span><span·class="p">.</span><span·class="w"> |
| 544 | </span><span·class="w"> | 544 | </span><span·class="w"> |
| 545 | </span><span·class="p">-</span><span·class="na">define</span><span·class="p"·data-group-id=" | 545 | </span><span·class="p">-</span><span·class="na">define</span><span·class="p"·data-group-id="4372985825-2">(</span><span·class="n">DRV_CONNECT</span><span·class="p">,</span><span·class="w">·</span><span·class="sc">$C</span><span·class="p"·data-group-id="4372985825-2">)</span><span·class="p">.</span><span·class="w"> |
| 546 | </span><span·class="p">-</span><span·class="na">define</span><span·class="p"·data-group-id=" | 546 | </span><span·class="p">-</span><span·class="na">define</span><span·class="p"·data-group-id="4372985825-3">(</span><span·class="n">DRV_DISCONNECT</span><span·class="p">,</span><span·class="w">·</span><span·class="sc">$D</span><span·class="p"·data-group-id="4372985825-3">)</span><span·class="p">.</span><span·class="w"> |
| 547 | </span><span·class="p">-</span><span·class="na">define</span><span·class="p"·data-group-id=" | 547 | </span><span·class="p">-</span><span·class="na">define</span><span·class="p"·data-group-id="4372985825-4">(</span><span·class="n">DRV_SELECT</span><span·class="p">,</span><span·class="w">·</span><span·class="sc">$S</span><span·class="p"·data-group-id="4372985825-4">)</span><span·class="p">.</span><span·class="w"> |
| 548 | </span><span·class="w"> | 548 | </span><span·class="w"> |
| 549 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 549 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="4372985825-5">(</span><span·class="p"·data-group-id="4372985825-6">[</span><span·class="ss">connect</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">disconnect</span><span·class="p">/</[·...·truncated·by·diffoscope;·len:·251,·SHA:·183699498a1ad2ae7468b26c5352afe1708b1caf7a7dbdfe5ccaa9d188a58ecf·...·]-5">)</span><span·class="p">.</span><span·class="w"> |
| 550 | </span><span·class="nf">connect</span><span·class="p"·data-group-id=" | 550 | </span><span·class="nf">connect</span><span·class="p"·data-group-id="4372985825-7">(</span><span·class="n">ConnectStr</span><span·class="p"·data-group-id="4372985825-7">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 551 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">erl_ddll</span><span·class="p">:</span><span·class="nf">load_driver</span><span·class="p"·data-group-id=" | 551 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">erl_ddll</span><span·class="p">:</span><span·class="nf">load_driver</span><span·class="p"·data-group-id="4372985825-8">(</span><span·class="s">"."</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"pg_async"</span><span·class="p"·data-group-id="4372985825-8">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 552 | ········</span><span·class="ss">ok</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">ok</span><span·class="p">;</span><span·class="w"> | 552 | ········</span><span·class="ss">ok</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">ok</span><span·class="p">;</span><span·class="w"> |
| 553 | ········</span><span·class="p"·data-group-id=" | 553 | ········</span><span·class="p"·data-group-id="4372985825-9">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">already_loaded</span><span·class="p"·data-group-id="4372985825-9">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">ok</span><span·class="p">;</span><span·class="w"> |
| 554 | ········</span><span·class="p">_</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="nf">exit</span><span·class="p"·data-group-id=" | 554 | ········</span><span·class="p">_</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="nf">exit</span><span·class="p"·data-group-id="4372985825-10">(</span><span·class="p"·data-group-id="4372985825-11">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">could_not_load_driver</span><span·class="p"·data-group-id="4372985825-11">}</span><sp[·...·truncated·by·diffoscope;·len:·38,·SHA:·65494039e6067e652dd5c9006e3dc476ae17fdb804bfb5bdc990f8c4b949884c·...·]-10">)</span><span·class="w"> |
| 555 | ····</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> | 555 | ····</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> |
| 556 | ····</span><span·class="n">Port</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">open_port</span><span·class="p"·data-group-id=" | 556 | ····</span><span·class="n">Port</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">open_port</span><span·class="p"·data-group-id="4372985825-12">(</span><span·class="p"·data-group-id="4372985825-13">{</span><span·class="nb">spawn</span><span·class="p">,</span><span·class="w">·</span><span·class="o">?</span><span·class="n">MODULE</span><span·class="p"·data-group-id="4372985825-13">}</[·...·truncated·by·diffoscope;·len:·232,·SHA:·6c11245bfc96711f268ab45226ac1eddc81de7d7814a7f256d76ed4dde46624e·...·]-12">)</span><span·class="p">,</span><span·class="w"> |
| 557 | ····</span><span·class="nf">port_control</span><span·class="p"·data-group-id=" | 557 | ····</span><span·class="nf">port_control</span><span·class="p"·data-group-id="4372985825-15">(</span><span·class="n">Port</span><span·class="p">,</span><span·class="w">·</span><span·class="o">?</span><span·class="n">DRV_CONNECT</span><span·class="p">,</span><span·class="w">·</span><span·class="n">ConnectStr</span><span·class="p"·dat[·...·truncated·by·diffoscope;·len:·22,·SHA:·cd9fc135104c75ff9b89e86c16bf37d41ad52efa3d0092cde40ea69e9e101a8c·...·]-15">)</span><span·class="p">,</span><span·class="w"> |
| 558 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nf">return_port_data</span><span·class="p"·data-group-id=" | 558 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nf">return_port_data</span><span·class="p"·data-group-id="4372985825-16">(</span><span·class="n">Port</span><span·class="p"·data-group-id="4372985825-16">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 559 | ········</span><span·class="ss">ok</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 559 | ········</span><span·class="ss">ok</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 560 | ············</span><span·class="p"·data-group-id=" | 560 | ············</span><span·class="p"·data-group-id="4372985825-17">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Port</span><span·class="p"·data-group-id="4372985825-17">}</span><span·class="p">;</span><span·class="w"> |
| 561 | ········</span><span·class="n">Error</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 561 | ········</span><span·class="n">Error</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 562 | ············</span><span·class="n">Error</span><span·class="w"> | 562 | ············</span><span·class="n">Error</span><span·class="w"> |
| 563 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> | 563 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> |
| 564 | </span><span·class="nf">disconnect</span><span·class="p"·data-group-id=" | 564 | </span><span·class="nf">disconnect</span><span·class="p"·data-group-id="4372985825-18">(</span><span·class="n">Port</span><span·class="p"·data-group-id="4372985825-18">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 565 | ····</span><span·class="nf">port_control</span><span·class="p"·data-group-id=" | 565 | ····</span><span·class="nf">port_control</span><span·class="p"·data-group-id="4372985825-19">(</span><span·class="n">Port</span><span·class="p">,</span><span·class="w">·</span><span·class="o">?</span><span·class="n">DRV_DISCONNECT</span><span·class="p">,</span><span·class="w">·</span><span·class="s">""</span><span·class="p[·...·truncated·by·diffoscope;·len:·27,·SHA:·7e3837bccfde10fb547d4c5a1e937d0bab9d57e462e7d7380b6440402af2bcb1·...·]-19">)</span><span·class="p">,</span><span·class="w"> |
| 566 | ····</span><span·class="n">R</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">return_port_data</span><span·class="p"·data-group-id="5579627947-20">(</span><span·class="n">Port</span><span·class="p"·data-group-id="5579627947-20">)</span><span·class="p">,</span><span·class="w"> | ||
| 567 | ····</span><span·class="n | 566 | ····</span><span·class="n">R</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">return_port_data</span><span·class="p"·data-group-id="4372985825-20">(</span><span·class="n">Port</span><span·class="p"·data-group-id="4372985825-20">)</span><span·class="p">,</span><span·class="w"> |
| 567 | ····</span><span·class="nf">port_close</span><span·class="p"·data-group-id="4372985825-21">(</span><span·class="n">Port</span><span·class="p"·data-group-id="4372985825-21">)</span><span·class="p">,</span><span·class="w"> | ||
| 568 | ····</span><span·class="n">R</span><span·class="p">.</span><span·class="w"> | 568 | ····</span><span·class="n">R</span><span·class="p">.</span><span·class="w"> |
| 569 | </span><span·class="nf">select</span><span·class="p"·data-group-id=" | 569 | </span><span·class="nf">select</span><span·class="p"·data-group-id="4372985825-22">(</span><span·class="n">Port</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Query</span><span·class="p"·data-group-id="4372985825-22">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 570 | ····</span><span·class="nf">port_control</span><span·class="p"·data-group-id=" | 570 | ····</span><span·class="nf">port_control</span><span·class="p"·data-group-id="4372985825-23">(</span><span·class="n">Port</span><span·class="p">,</span><span·class="w">·</span><span·class="o">?</span><span·class="n">DRV_SELECT</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Query</span><span·class="p"·data-grou[·...·truncated·by·diffoscope;·len:·16,·SHA:·9839f4ccd0ad927ef30349357a6621ec69673d2c7f8c54df3ef73e36e1bc0b38·...·]-23">)</span><span·class="p">,</span><span·class="w"> |
| 571 | ····</span><span·class="nf">return_port_data</span><span·class="p"·data-group-id=" | 571 | ····</span><span·class="nf">return_port_data</span><span·class="p"·data-group-id="4372985825-24">(</span><span·class="n">Port</span><span·class="p"·data-group-id="4372985825-24">)</span><span·class="p">.</span><span·class="w"> |
| 572 | </span><span·class="nf">return_port_data</span><span·class="p"·data-group-id=" | 572 | </span><span·class="nf">return_port_data</span><span·class="p"·data-group-id="4372985825-25">(</span><span·class="n">Port</span><span·class="p"·data-group-id="4372985825-25">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 573 | ····</span><span·class="k">receive</span><span·class="w"> | 573 | ····</span><span·class="k">receive</span><span·class="w"> |
| 574 | ········</span><span·class="p"·data-group-id=" | 574 | ········</span><span·class="p"·data-group-id="4372985825-26">{</span><span·class="n">Port</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4372985825-27">{</span><span·class="ss">data</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Data</span><[·...·truncated·by·diffoscope;·len:·94,·SHA:·84be349b59412f0a8d6af3380aa3a6d94e1be0a963c54ed2b3cd7d1383e93837·...·]-26">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 575 | ············</span><span·class="nf">binary_to_term</span><span·class="p"·data-group-id=" | 575 | ············</span><span·class="nf">binary_to_term</span><span·class="p"·data-group-id="4372985825-28">(</span><span·class="n">Data</span><span·class="p"·data-group-id="4372985825-28">)</span><span·class="w"> |
| 576 | ····</span><span·class="k">end</span><span·class="p">.</span></code></pre><p>The·Erlang·code·is·slightly·different,·as·we·do·not·return·the·result | 576 | ····</span><span·class="k">end</span><span·class="p">.</span></code></pre><p>The·Erlang·code·is·slightly·different,·as·we·do·not·return·the·result |
| 577 | synchronously·from·<a·href="erlang.html#port_control/3"><code·class="inline">port_control/3</code></a>,·instead·we·get·it·from·<a·href="../../../erts-16.0/doc/html/erl_driver.html#driver_output"·title=""><code·class="inline">driver_output</code></a>·as | 577 | synchronously·from·<a·href="erlang.html#port_control/3"><code·class="inline">port_control/3</code></a>,·instead·we·get·it·from·<a·href="../../../erts-16.0/doc/html/erl_driver.html#driver_output"·title=""><code·class="inline">driver_output</code></a>·as |
| 578 | data·in·the·message·queue.·The·function·<code·class="inline">return_port_data</code>·above·receives·data | 578 | data·in·the·message·queue.·The·function·<code·class="inline">return_port_data</code>·above·receives·data |
| 579 | from·the·port.·As·the·data·is·in·binary·format,·we·use | 579 | from·the·port.·As·the·data·is·in·binary·format,·we·use |
| 580 | <a·href="erlang.html#binary_to_term/1"><code·class="inline">binary_to_term/1</code></a>·to·convert·it·to·an·Erlang·term.·Notice | 580 | <a·href="erlang.html#binary_to_term/1"><code·class="inline">binary_to_term/1</code></a>·to·convert·it·to·an·Erlang·term.·Notice |
| 581 | that·the·driver·is·opened·in·binary·mode·(<a·href="erlang.html#open_port/2"><code·class="inline">open_port/2</code></a>·is | 581 | that·the·driver·is·opened·in·binary·mode·(<a·href="erlang.html#open_port/2"><code·class="inline">open_port/2</code></a>·is |
| 582 | called·with·option·<code·class="inline">[binary]</code>).·This·means·that·data·sent·from·the·driver·to·the | 582 | called·with·option·<code·class="inline">[binary]</code>).·This·means·that·data·sent·from·the·driver·to·the |
| Offset 677, 59 lines modified | Offset 677, 59 lines modified | ||
| 677 | ····*rp++·=·ERL_DRV_LIST; | 677 | ····*rp++·=·ERL_DRV_LIST; |
| 678 | ····*rp++·=·n+1; | 678 | ····*rp++·=·n+1; |
| 679 | ····driver_output_term(port,·result,·result_n); | 679 | ····driver_output_term(port,·result,·result_n); |
| 680 | ····delete[]·result; | 680 | ····delete[]·result; |
| 681 | ····delete·d; | 681 | ····delete·d; |
| 682 | }</code></pre><p>This·driver·is·called·like·the·others·from·Erlang.·However,·as·we·use | 682 | }</code></pre><p>This·driver·is·called·like·the·others·from·Erlang.·However,·as·we·use |
| 683 | <a·href="../../../erts-16.0/doc/html/erl_driver.html#driver_output_term"·title=""><code·class="inline">driver_output_term</code></a>,·there·is·no·need·to·call·<a·href="erlang.html#binary_to_term/1"><code·class="inline">binary_to_term/1</code></a>.·The·Erlang·code | 683 | <a·href="../../../erts-16.0/doc/html/erl_driver.html#driver_output_term"·title=""><code·class="inline">driver_output_term</code></a>,·there·is·no·need·to·call·<a·href="erlang.html#binary_to_term/1"><code·class="inline">binary_to_term/1</code></a>.·The·Erlang·code |
| 684 | is·in·the·sample·file·<code·class="inline">next_perm.erl</code>.</p><p>The·input·is·changed·into·a·list·of·integers·and·sent·to·the·driver.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 684 | is·in·the·sample·file·<code·class="inline">next_perm.erl</code>.</p><p>The·input·is·changed·into·a·list·of·integers·and·sent·to·the·driver.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="5187217775-1">(</span><span·class="ss">next_perm</span><span·class="p"·data-group-id="5187217775-1">)</span><span·class="p">.</span><span·class="w"> |
| 685 | </span><span·class="w"> | 685 | </span><span·class="w"> |
| 686 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 686 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="5187217775-2">(</span><span·class="p"·data-group-id="5187217775-3">[</span><span·class="ss">next_perm</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">prev_perm</span><span·class="p">/<[·...·truncated·by·diffoscope;·len:·379,·SHA:·2c14be6625156179d2a080b651f82c259378377a0c74adf1eb04924b7952caa2·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 687 | </span><span·class="nf">load</span><span·class="p"·data-group-id=" | 687 | </span><span·class="nf">load</span><span·class="p"·data-group-id="5187217775-4">(</span><span·class="p"·data-group-id="5187217775-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 688 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nf">whereis</span><span·class="p"·data-group-id=" | 688 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nf">whereis</span><span·class="p"·data-group-id="5187217775-5">(</span><span·class="ss">next_perm</span><span·class="p"·data-group-id="5187217775-5">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 689 | ········</span><span·class="ss">undefined</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 689 | ········</span><span·class="ss">undefined</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 690 | ············</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">erl_ddll</span><span·class="p">:</span><span·class="nf">load_driver</span><span·class="p"·data-group-id=" | 690 | ············</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">erl_ddll</span><span·class="p">:</span><span·class="nf">load_driver</span><span·class="p"·data-group-id="5187217775-6">(</span><span·class="s">"."</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"next_perm"</span><span·class="p"·data-group-id="5187217775-6">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 691 | ················</span><span·class="ss">ok</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">ok</span><span·class="p">;</span><span·class="w"> | 691 | ················</span><span·class="ss">ok</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">ok</span><span·class="p">;</span><span·class="w"> |
| 692 | ················</span><span·class="p"·data-group-id=" | 692 | ················</span><span·class="p"·data-group-id="5187217775-7">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">already_loaded</span><span·class="p"·data-group-id="5187217775-7">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">ok</span><span·class="p">;</span><span·class="w"> |
| 693 | ················</span><span·class="n">E</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="nf">exit</span><span·class="p"·data-group-id=" | 693 | ················</span><span·class="n">E</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="nf">exit</span><span·class="p"·data-group-id="5187217775-8">(</span><span·class="n">E</span><span·class="p"·data-group-id="5187217775-8">)</span><span·class="w"> |
| 694 | ············</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> | 694 | ············</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> |
| 695 | ············</span><span·class="n">Port</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">open_port</span><span·class="p"·data-group-id=" | 695 | ············</span><span·class="n">Port</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">open_port</span><span·class="p"·data-group-id="5187217775-9">(</span><span·class="p"·data-group-id="5187217775-10">{</span><span·class="nb">spawn</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"next_perm"</span><span·class="p"·data-group-id="5187217775-10">}</span><span[·...·truncated·by·diffoscope;·len:·192,·SHA:·23acfff3e355540511b840a219cd23a8d36be9bf7d9b2d27d18d85ca22ac6101·...·]-9">)</span><span·class="p">,</span><span·class="w"> |
| 696 | ············</span><span·class="nf">register</span><span·class="p"·data-group-id=" | 696 | ············</span><span·class="nf">register</span><span·class="p"·data-group-id="5187217775-12">(</span><span·class="ss">next_perm</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Port</span><span·class="p"·data-group-id="5187217775-12">)</span><span·class="p">;</span><span·class="w"> |
| 697 | ········</span><span·class="p">_</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 697 | ········</span><span·class="p">_</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 698 | ············</span><span·class="ss">ok</span><span·class="w"> | 698 | ············</span><span·class="ss">ok</span><span·class="w"> |
| 699 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> | 699 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> |
| 700 | </span><span·class="nf">list_to_integer_binaries</span><span·class="p"·data-group-id=" | 700 | </span><span·class="nf">list_to_integer_binaries</span><span·class="p"·data-group-id="5187217775-13">(</span><span·class="n">L</span><span·class="p"·data-group-id="5187217775-13">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 701 | ····</span><span·class="p"·data-group-id=" | 701 | ····</span><span·class="p"·data-group-id="5187217775-14">[</span><span·class="p"·data-group-id="5187217775-15"><<</span><span·class="n">I</span><span·class="p">:</span><span·class="mi">32</span><span·class="o">/</span><span·class="ss">integer</span><span·class="o">-</span><span·class="ss">na[·...·truncated·by·diffoscope;·len:·310,·SHA:·220da1132bd7c3d033d25bba102f1652d5e5ef1abd6d5e452bfd7891c5baba77·...·]-14">]</span><span·class="p">.</span><span·class="w"> |
| 702 | </span><span·class="nf">next_perm</span><span·class="p"·data-group-id=" | 702 | </span><span·class="nf">next_perm</span><span·class="p"·data-group-id="5187217775-16">(</span><span·class="n">L</span><span·class="p"·data-group-id="5187217775-16">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 703 | ····</span><span·class="nf">next_perm</span><span·class="p"·data-group-id=" | 703 | ····</span><span·class="nf">next_perm</span><span·class="p"·data-group-id="5187217775-17">(</span><span·class="n">L</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">1</span><span·class="p"·data-group-id="5187217775-17">)</span><span·class="p">.</span><span·class="w"> |
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| 417 | ······<p·class="built-using"> | 417 | ······<p·class="built-using"> |
| 418 | ········Built·using | 418 | ········Built·using |
| 419 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 419 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 420 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 420 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 421 | ······</p> | 421 | ······</p> |
| 422 | <p>Copyright·©·1996-202 | 422 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 423 | ····</footer> | 423 | ····</footer> |
| 424 | ··</div> | 424 | ··</div> |
| 425 | </main> | 425 | </main> |
| 426 | </div> | 426 | </div> |
| 427 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 427 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 428 | ··<script> | 428 | ··<script> |
| 429 | ··let·initialized·=·false; | 429 | ··let·initialized·=·false; |
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| 301 | ······<p·class="built-using"> | 301 | ······<p·class="built-using"> |
| 302 | ········Built·using | 302 | ········Built·using |
| 303 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 303 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 304 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 304 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 305 | ······</p> | 305 | ······</p> |
| 306 | <p>Copyright·©·1996-202 | 306 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 307 | ····</footer> | 307 | ····</footer> |
| 308 | ··</div> | 308 | ··</div> |
| 309 | </main> | 309 | </main> |
| 310 | </div> | 310 | </div> |
| 311 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 311 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 312 | ··<script> | 312 | ··<script> |
| 313 | ··let·initialized·=·false; | 313 | ··let·initialized·=·false; |
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| 149 | runtime·system,·more·specifically·to·the·<code·class="inline">init</code>·system·process,·see·<a·href="init.html"><code·class="inline">init</code></a>.</p><p>The·<code·class="inline">init</code>·process·itself·interprets·some·of·these·flags,·the·<em>init·flags</em>.·It | 149 | runtime·system,·more·specifically·to·the·<code·class="inline">init</code>·system·process,·see·<a·href="init.html"><code·class="inline">init</code></a>.</p><p>The·<code·class="inline">init</code>·process·itself·interprets·some·of·these·flags,·the·<em>init·flags</em>.·It |
| 150 | also·stores·any·remaining·flags,·the·<em>user·flags</em>.·The·latter·can·be·retrieved | 150 | also·stores·any·remaining·flags,·the·<em>user·flags</em>.·The·latter·can·be·retrieved |
| 151 | by·calling·<a·href="init.html#get_argument/1"><code·class="inline">init:get_argument/1</code></a>.</p><p>A·small·number·of·"-"·flags·exist,·which·now·actually·are·emulator·flags,·see | 151 | by·calling·<a·href="init.html#get_argument/1"><code·class="inline">init:get_argument/1</code></a>.</p><p>A·small·number·of·"-"·flags·exist,·which·now·actually·are·emulator·flags,·see |
| 152 | the·description·below.</p></li><li><p>Plain·arguments·are·not·interpreted·in·any·way.·They·are·also·stored·by·the | 152 | the·description·below.</p></li><li><p>Plain·arguments·are·not·interpreted·in·any·way.·They·are·also·stored·by·the |
| 153 | <code·class="inline">init</code>·process·and·can·be·retrieved·by·calling·<a·href="init.html#get_plain_arguments/0"><code·class="inline">init:get_plain_arguments/0</code></a>. | 153 | <code·class="inline">init</code>·process·and·can·be·retrieved·by·calling·<a·href="init.html#get_plain_arguments/0"><code·class="inline">init:get_plain_arguments/0</code></a>. |
| 154 | Plain·arguments·can·occur·before·the·first·flag,·or·after·a·<code·class="inline">--</code>·flag.·Also, | 154 | Plain·arguments·can·occur·before·the·first·flag,·or·after·a·<code·class="inline">--</code>·flag.·Also, |
| 155 | the·<code·class="inline">-extra</code>·flag·causes·everything·that·follows·to·become·plain·arguments.</p></li></ul><p><em>Examples:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%·erl·+W·w·-sname·arnie·+S·2·-s·my_init·-extra·+bertie</span><span·class="gp·unselectable"> | 155 | the·<code·class="inline">-extra</code>·flag·causes·everything·that·follows·to·become·plain·arguments.</p></li></ul><p><em>Examples:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%·erl·+W·w·-sname·arnie·+S·2·-s·my_init·-extra·+bertie</span><span·class="gp·unselectable"> |
| 156 | (arnie@host)1>·</span><span·class="nc">init</span><span·class="p">:</span><span·class="nf">get_argument</span><span·class="p"·data-group-id=" | 156 | (arnie@host)1>·</span><span·class="nc">init</span><span·class="p">:</span><span·class="nf">get_argument</span><span·class="p"·data-group-id="7978600435-1">(</span><span·class="ss">sname</span><span·class="p"·data-group-id="7978600435-1">)</span><span·class="p">.</span><span·class="w"> |
| 157 | </span><span·class="p"·data-group-id=" | 157 | </span><span·class="p"·data-group-id="7978600435-2">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="p"·data-group-id="7978600435-3">[</span><span·class="p"·data-group-id="7978600435-4">[</span><span·class="s">"arnie"</span><span·class="p"·data-group-id="7978600[·...·truncated·by·diffoscope;·len:·109,·SHA:·c6a02f4253816a0bcfa6c573bd9cf6b926a3f71bbb8d5b1eb4629955d046f257·...·]-2">}</span><span·class="gp·unselectable"> |
| 158 | (arnie@host)2>·</span><span·class="nc">init</span><span·class="p">:</span><span·class="nf">get_plain_arguments</span><span·class="p"·data-group-id=" | 158 | (arnie@host)2>·</span><span·class="nc">init</span><span·class="p">:</span><span·class="nf">get_plain_arguments</span><span·class="p"·data-group-id="7978600435-5">(</span><span·class="p"·data-group-id="7978600435-5">)</span><span·class="p">.</span><span·class="w"> |
| 159 | </span><span·class="p"·data-group-id=" | 159 | </span><span·class="p"·data-group-id="7978600435-6">[</span><span·class="s">"+bertie"</span><span·class="p"·data-group-id="7978600435-6">]</span></code></pre><p>Here·<code·class="inline">+W·w</code>·and·<code·class="inline">+S·2</code>·are·emulator·flags.·<code·class="inline">-s·my_init</code>·is·an·init·flag, |
| 160 | interpreted·by·<code·class="inline">init</code>.·<code·class="inline">-sname·arnie</code>·is·a·user·flag,·stored·by·<code·class="inline">init</code>.·It·is | 160 | interpreted·by·<code·class="inline">init</code>.·<code·class="inline">-sname·arnie</code>·is·a·user·flag,·stored·by·<code·class="inline">init</code>.·It·is |
| 161 | read·by·Kernel·and·causes·the·Erlang·runtime·system·to·become·distributed. | 161 | read·by·Kernel·and·causes·the·Erlang·runtime·system·to·become·distributed. |
| 162 | Finally,·everything·after·<code·class="inline">-extra</code>·(that·is,·<code·class="inline">+bertie</code>)·is·considered·as·plain | 162 | Finally,·everything·after·<code·class="inline">-extra</code>·(that·is,·<code·class="inline">+bertie</code>)·is·considered·as·plain |
| 163 | arguments.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%·erl·-myflag·1</span><span·class="gp·unselectable"> | 163 | arguments.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%·erl·-myflag·1</span><span·class="gp·unselectable"> |
| 164 | 1>·</span><span·class="nc">init</span><span·class="p">:</span><span·class="nf">get_argument</span><span·class="p"·data-group-id=" | 164 | 1>·</span><span·class="nc">init</span><span·class="p">:</span><span·class="nf">get_argument</span><span·class="p"·data-group-id="6021884970-1">(</span><span·class="ss">myflag</span><span·class="p"·data-group-id="6021884970-1">)</span><span·class="p">.</span><span·class="w"> |
| 165 | </span><span·class="p"·data-group-id=" | 165 | </span><span·class="p"·data-group-id="6021884970-2">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="p"·data-group-id="6021884970-3">[</span><span·class="p"·data-group-id="6021884970-4">[</span><span·class="s">"1"</span><span·class="p"·data-group-id="6021884970-[·...·truncated·by·diffoscope;·len:·105,·SHA:·6caa97a6be001c0b6f4eb9f8bf92664970869c02c100b79e7690fb7b40da0168·...·]-2">}</span><span·class="gp·unselectable"> |
| 166 | 2>·</span><span·class="nc">init</span><span·class="p">:</span><span·class="nf">get_plain_arguments</span><span·class="p"·data-group-id=" | 166 | 2>·</span><span·class="nc">init</span><span·class="p">:</span><span·class="nf">get_plain_arguments</span><span·class="p"·data-group-id="6021884970-5">(</span><span·class="p"·data-group-id="6021884970-5">)</span><span·class="p">.</span><span·class="w"> |
| 167 | </span><span·class="p"·data-group-id=" | 167 | </span><span·class="p"·data-group-id="6021884970-6">[</span><span·class="p"·data-group-id="6021884970-6">]</span></code></pre><p>Here·the·user·flag·<code·class="inline">-myflag·1</code>·is·passed·to·and·stored·by·the·<code·class="inline">init</code>·process.·It |
| 168 | is·a·user-defined·flag,·presumably·used·by·some·user-defined·application.</p><h2·id="flags"·class="section-heading"> | 168 | is·a·user-defined·flag,·presumably·used·by·some·user-defined·application.</p><h2·id="flags"·class="section-heading"> |
| 169 | ··<a·href="#flags"·class="hover-link"> | 169 | ··<a·href="#flags"·class="hover-link"> |
| 170 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 170 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 171 | ··</a> | 171 | ··</a> |
| 172 | ··<span·class="text">Flags</span> | 172 | ··<span·class="text">Flags</span> |
| 173 | </h2> | 173 | </h2> |
| 174 | <p>In·the·following·list,·init·flags·are·marked·"(init·flag)".·Unless·otherwise | 174 | <p>In·the·following·list,·init·flags·are·marked·"(init·flag)".·Unless·otherwise |
| Offset 694, 15 lines modified | Offset 694, 15 lines modified | ||
| 694 | processes)·into·a·smaller·set·of·schedulers·when·schedulers·frequently·run | 694 | processes)·into·a·smaller·set·of·schedulers·when·schedulers·frequently·run |
| 695 | out·of·work.·When·disabled,·the·frequency·with·which·schedulers·run·out·of | 695 | out·of·work.·When·disabled,·the·frequency·with·which·schedulers·run·out·of |
| 696 | work·is·not·taken·into·account·by·the·load·balancing·logic.</p><p><code·class="inline">+scl·false</code>·is·similar·to·<a·href="#%2Bsub"><code·class="inline">+sub·true</code></a>,·but·<code·class="inline">+sub·true</code> | 696 | work·is·not·taken·into·account·by·the·load·balancing·logic.</p><p><code·class="inline">+scl·false</code>·is·similar·to·<a·href="#%2Bsub"><code·class="inline">+sub·true</code></a>,·but·<code·class="inline">+sub·true</code> |
| 697 | also·balances·scheduler·utilization·between·schedulers.</p></li><li><p><strong><code·class="inline"·id="+sct">+sct·CpuTopology</code></strong>·-·Sets·a·user-defined·CPU·topology. | 697 | also·balances·scheduler·utilization·between·schedulers.</p></li><li><p><strong><code·class="inline"·id="+sct">+sct·CpuTopology</code></strong>·-·Sets·a·user-defined·CPU·topology. |
| 698 | The·user-defined·CPU·topology·overrides | 698 | The·user-defined·CPU·topology·overrides |
| 699 | any·automatically·detected·CPU·topology.·The·CPU·topology·is·used·when | 699 | any·automatically·detected·CPU·topology.·The·CPU·topology·is·used·when |
| 700 | <a·href="#%2Bsbt">binding·schedulers·to·logical·processors</a>.·This·option·must·be·before | 700 | <a·href="#%2Bsbt">binding·schedulers·to·logical·processors</a>.·This·option·must·be·before |
| 701 | <a·href="#%2Bsbt"><code·class="inline">+sbt</code></a>·on·the·command-line.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="o"><</span><span·class="n">Id</span><span·class="o">></span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id=" | 701 | <a·href="#%2Bsbt"><code·class="inline">+sbt</code></a>·on·the·command-line.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="o"><</span><span·class="n">Id</span><span·class="o">></span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="6098206786-1">(</span><span·class="p"·data-group-id="6098206786-1">)</span><span·class="p">;</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><span·class="mi">0</span><span·class="w">·</span><span·class="o">=<</span><span·class="w">·</span><span·class="o"><</span><span·class="n">Id</span><span·class="o">></span><span·class="w">·</span><span·class="o">=<</span><span·class="w">·</span><span·class="mi">65535</span><span·class="w"> |
| 702 | </span><span·class="o"><</span><span·class="n">IdRange</span><span·class="o">></span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o"><</span><span·class="n">Id</span><span·class="o">></span><span·class="o">-</span><span·class="o"><</span><span·class="n">Id</span><span·class="o">></span><span·class="w"> | 702 | </span><span·class="o"><</span><span·class="n">IdRange</span><span·class="o">></span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o"><</span><span·class="n">Id</span><span·class="o">></span><span·class="o">-</span><span·class="o"><</span><span·class="n">Id</span><span·class="o">></span><span·class="w"> |
| 703 | </span><span·class="o"><</span><span·class="n">IdOrIdRange</span><span·class="o">></span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o"><</span><span·class="n">Id</span><span·class="o">></span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="o"><</span><span·class="n">IdRange</span><span·class="o">></span><span·class="w"> | 703 | </span><span·class="o"><</span><span·class="n">IdOrIdRange</span><span·class="o">></span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o"><</span><span·class="n">Id</span><span·class="o">></span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="o"><</span><span·class="n">IdRange</span><span·class="o">></span><span·class="w"> |
| 704 | </span><span·class="o"><</span><span·class="n">IdList</span><span·class="o">></span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o"><</span><span·class="n">IdOrIdRange</span><span·class="o">></span><span·class="p">,</span><span·class="o"><</span><span·class="n">IdOrIdRange</span><span·class="o">></span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="o"><</span><span·class="n">IdOrIdRange</span><span·class="o">></span><span·class="w"> | 704 | </span><span·class="o"><</span><span·class="n">IdList</span><span·class="o">></span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o"><</span><span·class="n">IdOrIdRange</span><span·class="o">></span><span·class="p">,</span><span·class="o"><</span><span·class="n">IdOrIdRange</span><span·class="o">></span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="o"><</span><span·class="n">IdOrIdRange</span><span·class="o">></span><span·class="w"> |
| 705 | </span><span·class="o"><</span><span·class="n">LogicalIds</span><span·class="o">></span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">L</span><span·class="o"><</span><span·class="n">IdList</span><span·class="o">></span><span·class="w"> | 705 | </span><span·class="o"><</span><span·class="n">LogicalIds</span><span·class="o">></span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">L</span><span·class="o"><</span><span·class="n">IdList</span><span·class="o">></span><span·class="w"> |
| 706 | </span><span·class="o"><</span><span·class="n">ThreadIds</span><span·class="o">></span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">T</span><span·class="o"><</span><span·class="n">IdList</span><span·class="o">></span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">t</span><span·class="o"><</span><span·class="n">IdList</span><span·class="o">></span><span·class="w"> | 706 | </span><span·class="o"><</span><span·class="n">ThreadIds</span><span·class="o">></span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">T</span><span·class="o"><</span><span·class="n">IdList</span><span·class="o">></span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">t</span><span·class="o"><</span><span·class="n">IdList</span><span·class="o">></span><span·class="w"> |
| 707 | </span><span·class="o"><</span><span·class="n">CoreIds</span><span·class="o">></span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">C</span><span·class="o"><</span><span·class="n">IdList</span><span·class="o">></span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">c</span><span·class="o"><</span><span·class="n">IdList</span><span·class="o">></span><span·class="w"> | 707 | </span><span·class="o"><</span><span·class="n">CoreIds</span><span·class="o">></span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">C</span><span·class="o"><</span><span·class="n">IdList</span><span·class="o">></span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">c</span><span·class="o"><</span><span·class="n">IdList</span><span·class="o">></span><span·class="w"> |
| 708 | </span><span·class="o"><</span><span·class="n">ProcessorIds</span><span·class="o">></span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">P</span><span·class="o"><</span><span·class="n">IdList</span><span·class="o">></span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">p</span><span·class="o"><</span><span·class="n">IdList</span><span·class="o">></span><span·class="w"> | 708 | </span><span·class="o"><</span><span·class="n">ProcessorIds</span><span·class="o">></span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">P</span><span·class="o"><</span><span·class="n">IdList</span><span·class="o">></span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">p</span><span·class="o"><</span><span·class="n">IdList</span><span·class="o">></span><span·class="w"> |
| Offset 727, 30 lines modified | Offset 727, 30 lines modified | ||
| 727 | node.</li><li><code·class="inline"><LogicalIds><ThreadIds><CoreIds><NodeIds><ProcessorIds></code>,·that·is,·thread | 727 | node.</li><li><code·class="inline"><LogicalIds><ThreadIds><CoreIds><NodeIds><ProcessorIds></code>,·that·is,·thread |
| 728 | is·part·of·a·core·that·is·part·of·a·NUMA·node,·which·is·part·of·a | 728 | is·part·of·a·core·that·is·part·of·a·NUMA·node,·which·is·part·of·a |
| 729 | processor.</li></ul><p>A·CPU·topology·can·consist·of·both·processor·external,·and·processor | 729 | processor.</li></ul><p>A·CPU·topology·can·consist·of·both·processor·external,·and·processor |
| 730 | internal·NUMA·nodes·as·long·as·each·logical·processor·belongs·to·only·one | 730 | internal·NUMA·nodes·as·long·as·each·logical·processor·belongs·to·only·one |
| 731 | NUMA·node.·If·<code·class="inline"><ProcessorIds></code>·is·omitted,·its·default·position·is·before | 731 | NUMA·node.·If·<code·class="inline"><ProcessorIds></code>·is·omitted,·its·default·position·is·before |
| 732 | <code·class="inline"><NodeIds></code>.·That·is,·the·default·is·processor·external·NUMA·nodes.</p><p>If·a·list·of·identifiers·is·used·in·an·<code·class="inline"><IdDefs></code>:</p><ul><li><code·class="inline"><LogicalIds></code>·must·be·a·list·of·identifiers.</li><li>At·least·one·other·identifier·type·besides·<code·class="inline"><LogicalIds></code>·must·also·have·a | 732 | <code·class="inline"><NodeIds></code>.·That·is,·the·default·is·processor·external·NUMA·nodes.</p><p>If·a·list·of·identifiers·is·used·in·an·<code·class="inline"><IdDefs></code>:</p><ul><li><code·class="inline"><LogicalIds></code>·must·be·a·list·of·identifiers.</li><li>At·least·one·other·identifier·type·besides·<code·class="inline"><LogicalIds></code>·must·also·have·a |
| 733 | list·of·identifiers.</li><li>All·lists·of·identifiers·must·produce·the·same·number·of·identifiers.</li></ul><p>A·simple·example.·A·single·quad·core·processor·can·be·described·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%·erl·+sct·L0-3c0-3</span><span·class="gp·unselectable"> | 733 | list·of·identifiers.</li><li>All·lists·of·identifiers·must·produce·the·same·number·of·identifiers.</li></ul><p>A·simple·example.·A·single·quad·core·processor·can·be·described·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%·erl·+sct·L0-3c0-3</span><span·class="gp·unselectable"> |
| 734 | 1>·</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">system_info</span><span·class="p"·data-group-id=" | 734 | 1>·</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">system_info</span><span·class="p"·data-group-id="5138812143-1">(</span><span·class="ss">cpu_topology</span><span·class="p"·data-group-id="5138812143-1">)</span><span·class="p">.</span><span·class="w"> |
| 735 | </span><span·class="p"·data-group-id=" | 735 | </span><span·class="p"·data-group-id="5138812143-2">[</span><span·class="p"·data-group-id="5138812143-3">{</span><span·class="ss">processor</span><span·class="p">,</span><span·class="p"·data-group-id="5138812143-4">[</span><span·class="p"·data-group-id="5138812143-5">{</span><span·class="ss">c[·...·truncated·by·diffoscope;·len:·261,·SHA:·ec5b86713dd2872b9cedf09ba99c8b9830ce5e6cbe7e952ceb6a696e17384d61·...·]-5">}</span><span·class="p">,</span><span·class="w"> |
| 736 | ·············</span><span·class="p"·data-group-id=" | 736 | ·············</span><span·class="p"·data-group-id="5138812143-7">{</span><span·class="ss">core</span><span·class="p">,</span><span·class="p"·data-group-id="5138812143-8">{</span><span·class="ss">logical</span><span·class="p">,</span><span·class="mi">1</span><span·class="p"·data-group-id="5138812143-8">}</s[·...·truncated·by·diffoscope;·len:·45,·SHA:·467c9b8f16f46112589bd8fa93dc2e43a6377137578c221a2bf9e226bf7e4445·...·]-7">}</span><span·class="p">,</span><span·class="w"> |
| 737 | ·············</span><span·class="p"·data-group-id=" | 737 | ·············</span><span·class="p"·data-group-id="5138812143-9">{</span><span·class="ss">core</span><span·class="p">,</span><span·class="p"·data-group-id="5138812143-10">{</span><span·class="ss">logical</span><span·class="p">,</span><span·class="mi">2</span><span·class="p"·data-group-id="5138812143-10">}<[·...·truncated·by·diffoscope;·len:·47,·SHA:·9ed6e3ee7693606c49bebecc61c0f07bca6bc01f2f6090ba5f7809382f22b8f4·...·]-9">}</span><span·class="p">,</span><span·class="w"> |
| 738 | ·············</span><span·class="p"·data-group-id=" | 738 | ·············</span><span·class="p"·data-group-id="5138812143-11">{</span><span·class="ss">core</span><span·class="p">,</span><span·class="p"·data-group-id="5138812143-12">{</span><span·class="ss">logical</span><span·class="p">,</span><span·class="mi">3</span><span·class="p"·data-group-id="5138812143-12">}[·...·truncated·by·diffoscope;·len:·208,·SHA:·3952d66e2781121a8b5a43a9e0bfca2a9a1d7a5be33dcb64a4c97ceee6b4d8ea·...·]-2">]</span></code></pre><p>A·more·complicated·example·with·two·quad·core·processors,·each·processor·in |
| 739 | its·own·NUMA·node.·The·ordering·of·logical·processors·is·a·bit·weird.·This | 739 | its·own·NUMA·node.·The·ordering·of·logical·processors·is·a·bit·weird.·This |
| 740 | to·give·a·better·example·of·identifier·lists:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%·erl·+sct·L0-1,3-2c0-3p0N0:L7,4,6-5c0-3p1N1</span><span·class="gp·unselectable"> | 740 | to·give·a·better·example·of·identifier·lists:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%·erl·+sct·L0-1,3-2c0-3p0N0:L7,4,6-5c0-3p1N1</span><span·class="gp·unselectable"> |
| 741 | 1>·</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">system_info</span><span·class="p"·data-group-id=" | 741 | 1>·</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">system_info</span><span·class="p"·data-group-id="3071965835-1">(</span><span·class="ss">cpu_topology</span><span·class="p"·data-group-id="3071965835-1">)</span><span·class="p">.</span><span·class="w"> |
| 742 | </span><span·class="p"·data-group-id=" | 742 | </span><span·class="p"·data-group-id="3071965835-2">[</span><span·class="p"·data-group-id="3071965835-3">{</span><span·class="nb">node</span><span·class="p">,</span><span·class="p"·data-group-id="3071965835-4">[</span><span·class="p"·data-group-id="3071965835-5">{</span><span·class="ss">proces[·...·truncated·by·diffoscope;·len:·418,·SHA:·7f3b19eb842a92cc32beed1c9627a9129cfa3d94159cdbf9f233ebd4a326426d·...·]5-7">}</span><span·class="p">,</span><span·class="w"> |
| 743 | ····················</span><span·class="p"·data-group-id=" | 743 | ····················</span><span·class="p"·data-group-id="3071965835-9">{</span><span·class="ss">core</span><span·class="p">,</span><span·class="p"·data-group-id="3071965835-10">{</span><span·class="ss">logical</span><span·class="p">,</span><span·class="mi">1</span><span·class="p"·data-group-id="3071965835-10">}<[·...·truncated·by·diffoscope;·len:·46,·SHA:·2305db548a6948440fb0d3fdab966c7263c456bfc00dc52b49994ff52acefd0e·...·]5-9">}</span><span·class="p">,</span><span·class="w"> |
| 744 | ····················</span><span·class="p"·data-group-id=" | 744 | ····················</span><span·class="p"·data-group-id="3071965835-11">{</span><span·class="ss">core</span><span·class="p">,</span><span·class="p"·data-group-id="3071965835-12">{</span><span·class="ss">logical</span><span·class="p">,</span><span·class="mi">3</span><span·class="p"·data-group-id="3071965835-12">}[·...·truncated·by·diffoscope;·len:·47,·SHA:·dd8b152cbb01c4057f4b3b47ed4bdedb704ff15238b81c37dbab64bd12277616·...·]5-11">}</span><span·class="p">,</span><span·class="w"> |
| 745 | ····················</span><span·class="p"·data-group-id="1805342615-13">{</span><span·class="ss">core</span><span·class="p">,</span><span·class="p"·data-group-id="1805342615-14">{</span><span·class="ss">logical</span><span·class="p">,</span><span·class="mi">2</span><span·class="p"·data-group-id="1805342615-14">}</span><span·class="p"·data-group-id="1805342615-13">}</span><span·class="p"·data-group-id="1805342615-6">]</span><span·class="p"·data-group-id="1805342615-5">}</span><span·class="p"·data-group-id="1805342615-4">]</span><span·class="p"·data-group-id="1805342615-3">}</span><span·class="p">,</span><span·class="w"> | ||
| 746 | ·</span><span·class="p"·data-group-id=" | 745 | ····················</span><span·class="p"·data-group-id="3071965835-13">{</span><span·class="ss">core</span><span·class="p">,</span><span·class="p"·data-group-id="3071965835-14">{</span><span·class="ss">logical</span><span·class="p">,</span><span·class="mi[·...·truncated·by·diffoscope;·len:·320,·SHA:·b29bcfac1bc50d71e124e176de4813b8b1685a6a9e4e5a71df25d9820f17a919·...·]">}</span><span·class="p">,</span><span·class="w"> |
| 746 | ·</span><span·class="p"·data-group-id="3071965835-15">{</span><span·class="nb">node</span><span·class="p">,</span><span·class="p"·data-group-id="3071965835-16">[</span><span·class="p"·data-group-id="3071965835-17">{</span><span·class="ss">processor</span><span·class="p">,</span><span·class="p"·data-group-id="3071965835-18">[</span><span·class="p"·data-group-id="3071965835-19">{</span><span·class="ss">core</span><span·class="p">,</span><span·class="p"·data-group-id="3071965835-20">{</span><span·class="ss">logical</span><span·class="p">,</span><span·class="mi">7</span><span·class="p"·data-group-id="3071965835-20">}</span><span·class="p"·data-group-id="3071965835-19">}</span><span·class="p">,</span><span·class="w"> | ||
| 747 | ····················</span><span·class="p"·data-group-id=" | 747 | ····················</span><span·class="p"·data-group-id="3071965835-21">{</span><span·class="ss">core</span><span·class="p">,</span><span·class="p"·data-group-id="3071965835-22">{</span><span·class="ss">logical</span><span·class="p">,</span><span·class="mi">4</span><span·class="p"·data-group-id="3071965835-22">}[·...·truncated·by·diffoscope;·len:·47,·SHA:·dd8b152cbb01c4057f4b3b47ed4bdedb704ff15238b81c37dbab64bd12277616·...·]5-21">}</span><span·class="p">,</span><span·class="w"> |
| 748 | ····················</span><span·class="p"·data-group-id=" | 748 | ····················</span><span·class="p"·data-group-id="3071965835-23">{</span><span·class="ss">core</span><span·class="p">,</span><span·class="p"·data-group-id="3071965835-24">{</span><span·class="ss">logical</span><span·class="p">,</span><span·class="mi">6</span><span·class="p"·data-group-id="3071965835-24">}[·...·truncated·by·diffoscope;·len:·47,·SHA:·dd8b152cbb01c4057f4b3b47ed4bdedb704ff15238b81c37dbab64bd12277616·...·]5-23">}</span><span·class="p">,</span><span·class="w"> |
| 749 | ····················</span><span·class="p"·data-group-id=" | 749 | ····················</span><span·class="p"·data-group-id="3071965835-25">{</span><span·class="ss">core</span><span·class="p">,</span><span·class="p"·data-group-id="3071965835-26">{</span><span·class="ss">logical</span><span·class="p">,</span><span·class="mi">5</span><span·class="p"·data-group-id="3071965835-26">}[·...·truncated·by·diffoscope;·len:·317,·SHA:·917a16e168a7cb883640d4d0d608e3e38dae65e7ce0fba26c9f7065c41371909·...·]5-2">]</span></code></pre><p>As·long·as·real·identifiers·are·correct,·it·is·OK·to·pass·a·CPU·topology |
| 750 | that·is·not·a·correct·description·of·the·CPU·topology.·When·used·with·care | 750 | that·is·not·a·correct·description·of·the·CPU·topology.·When·used·with·care |
| 751 | this·can·be·very·useful.·This·to·trick·the·emulator·to·bind·its·schedulers | 751 | this·can·be·very·useful.·This·to·trick·the·emulator·to·bind·its·schedulers |
| 752 | as·you·want.·For·example,·if·you·want·to·run·multiple·Erlang·runtime·systems | 752 | as·you·want.·For·example,·if·you·want·to·run·multiple·Erlang·runtime·systems |
| 753 | on·the·same·machine,·you·want·to·reduce·the·number·of·schedulers·used·and | 753 | on·the·same·machine,·you·want·to·reduce·the·number·of·schedulers·used·and |
| 754 | manipulate·the·CPU·topology·so·that·they·bind·to·different·logical·CPUs.·An | 754 | manipulate·the·CPU·topology·so·that·they·bind·to·different·logical·CPUs.·An |
| 755 | example,·with·two·Erlang·runtime·systems·on·a·quad·core·machine:</p><pre><code·class="text">%·erl·+sct·L0-3c0-3·+sbt·db·+S3:2·-detached·-noinput·-noshell·-sname·one | 755 | example,·with·two·Erlang·runtime·systems·on·a·quad·core·machine:</p><pre><code·class="text">%·erl·+sct·L0-3c0-3·+sbt·db·+S3:2·-detached·-noinput·-noshell·-sname·one |
| 756 | %·erl·+sct·L3-0c0-3·+sbt·db·+S3:2·-detached·-noinput·-noshell·-sname·two</code></pre><p>In·this·example,·each·runtime·system·have·two·schedulers·each·online,·and | 756 | %·erl·+sct·L3-0c0-3·+sbt·db·+S3:2·-detached·-noinput·-noshell·-sname·two</code></pre><p>In·this·example,·each·runtime·system·have·two·schedulers·each·online,·and |
| Offset 917, 18 lines modified | Offset 917, 18 lines modified | ||
| 917 | </h2> | 917 | </h2> |
| 918 | <p>The·standard·Erlang/OTP·system·can·be·reconfigured·to·change·the·default | 918 | <p>The·standard·Erlang/OTP·system·can·be·reconfigured·to·change·the·default |
| 919 | behavior·on·startup.</p><ul><li><p><strong>The·<code·class="inline">.erlang</code>·startup·file</strong>·-·When·Erlang/OTP·is·started,·the·system | 919 | behavior·on·startup.</p><ul><li><p><strong>The·<code·class="inline">.erlang</code>·startup·file</strong>·-·When·Erlang/OTP·is·started,·the·system |
| 920 | searches·for·a·file·named·<code·class="inline">.erlang</code>·in·the | 920 | searches·for·a·file·named·<code·class="inline">.erlang</code>·in·the |
| 921 | <a·href="init.html#home">user's·home·directory</a>·and·then | 921 | <a·href="init.html#home">user's·home·directory</a>·and·then |
| 922 | <a·href="../../../lib/stdlib-7.0/doc/html/filename.html#user_config"><code·class="inline">filename:basedir(user_config,·"erlang")</code></a>.</p><p>If·an·<code·class="inline">.erlang</code>·file·is·found,·it·is·assumed·to·contain·valid·Erlang | 922 | <a·href="../../../lib/stdlib-7.0/doc/html/filename.html#user_config"><code·class="inline">filename:basedir(user_config,·"erlang")</code></a>.</p><p>If·an·<code·class="inline">.erlang</code>·file·is·found,·it·is·assumed·to·contain·valid·Erlang |
| 923 | expressions.·These·expressions·are·evaluated·as·if·they·were·input·to·the | 923 | expressions.·These·expressions·are·evaluated·as·if·they·were·input·to·the |
| 924 | shell.</p><p>A·typical·<code·class="inline">.erlang</code>·file·contains·a·set·of·search·paths,·for·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 924 | shell.</p><p>A·typical·<code·class="inline">.erlang</code>·file·contains·a·set·of·search·paths,·for·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="8836840768-1">(</span><span·class="s">"executing·user·profile·in·$HOME/.erlang\n"</span><span·class="p">,</span><span·class="p"·data-group-id="8836840768-2">[</span><span·class="p"·data-group-id="8836840768-2">]</span><span·class="p"·data-group-i[·...·truncated·by·diffoscope;·len:·12,·SHA:·a79746881178eaaf269924c8bb32aaba13c733ec1c9f6555a1d9c585c6ed7dba·...·]8-1">)</span><span·class="p">.</span><span·class="w"> |
| 925 | </span><span·class="nc">code</span><span·class="p">:</span><span·class="nf">add_path</span><span·class="p"·data-group-id=" | 925 | </span><span·class="nc">code</span><span·class="p">:</span><span·class="nf">add_path</span><span·class="p"·data-group-id="8836840768-3">(</span><span·class="s">"/home/calvin/test/ebin"</span><span·class="p"·data-group-id="8836840768-3">)</span><span·class="p">.</span><span·class="w"> |
| 926 | </span><span·class="nc">code</span><span·class="p">:</span><span·class="nf">add_path</span><span·class="p"·data-group-id=" | 926 | </span><span·class="nc">code</span><span·class="p">:</span><span·class="nf">add_path</span><span·class="p"·data-group-id="8836840768-4">(</span><span·class="s">"/home/hobbes/bigappl-1.2/ebin"</span><span·class="p"·data-group-id="8836840768-4">)</span><span·class="p">.</span><span·class="w"> |
| 927 | </span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 927 | </span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="8836840768-5">(</span><span·class="s">".erlang·rc·finished\n"</span><span·class="p">,</span><span·class="p"·data-group-id="8836840768-6">[</span><span·class="p"·data-group-id="8836840768-6">]</span><span·class="p"·data-group-id="8836840768-5">)</span><span·class="p">.</span></code></pre></li><li><p><strong>user_default</strong>·and·<strong>shell_default</strong>·-·Functions·in·the·shell·that·are·not |
| 928 | prefixed·by·a·module·name·are·assumed·to·be·functional·objects·(funs), | 928 | prefixed·by·a·module·name·are·assumed·to·be·functional·objects·(funs), |
| 929 | built-in·functions·(BIFs),·or·belong·to·the·module·<code·class="inline">user_default</code>·or | 929 | built-in·functions·(BIFs),·or·belong·to·the·module·<code·class="inline">user_default</code>·or |
| 930 | <code·class="inline">shell_default</code>.</p><p>To·include·private·shell·commands,·define·them·in·a·module·<code·class="inline">user_default</code>·and | 930 | <code·class="inline">shell_default</code>.</p><p>To·include·private·shell·commands,·define·them·in·a·module·<code·class="inline">user_default</code>·and |
| 931 | add·the·following·argument·as·the·first·line·in·the·<code·class="inline">.erlang</code>·file:</p><pre><code·class="text">code:load_abs("..../user_default").</code></pre></li><li><p><strong>erl</strong>·-·If·the·contents·of·<code·class="inline">.erlang</code>·are·changed·and·a·private·version·of | 931 | add·the·following·argument·as·the·first·line·in·the·<code·class="inline">.erlang</code>·file:</p><pre><code·class="text">code:load_abs("..../user_default").</code></pre></li><li><p><strong>erl</strong>·-·If·the·contents·of·<code·class="inline">.erlang</code>·are·changed·and·a·private·version·of |
| 932 | <code·class="inline">user_default</code>·is·defined,·the·Erlang/OTP·environment·can·be·customized.·More | 932 | <code·class="inline">user_default</code>·is·defined,·the·Erlang/OTP·environment·can·be·customized.·More |
| 933 | powerful·changes·can·be·made·by·supplying·command-line·arguments·in·the | 933 | powerful·changes·can·be·made·by·supplying·command-line·arguments·in·the |
| 934 | startup·script·<code·class="inline">erl</code>.·For·more·information,·see·<a·href="init.html"><code·class="inline">init</code></a>.</p></li></ul><h2·id="see-also"·class="section-heading"> | 934 | startup·script·<code·class="inline">erl</code>.·For·more·information,·see·<a·href="init.html"><code·class="inline">init</code></a>.</p></li></ul><h2·id="see-also"·class="section-heading"> |
| Offset 982, 15 lines modified | Offset 982, 15 lines modified | ||
| 982 | ······<p·class="built-using"> | 982 | ······<p·class="built-using"> |
| 983 | ········Built·using | 983 | ········Built·using |
| 984 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 984 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 985 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 985 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 986 | ······</p> | 986 | ······</p> |
| 987 | <p>Copyright·©·1996-202 | 987 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 988 | ····</footer> | 988 | ····</footer> |
| 989 | ··</div> | 989 | ··</div> |
| 990 | </main> | 990 | </main> |
| 991 | </div> | 991 | </div> |
| 992 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 992 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 993 | ··<script> | 993 | ··<script> |
| 994 | ··let·initialized·=·false; | 994 | ··let·initialized·=·false; |
| Offset 252, 32 lines modified | Offset 252, 32 lines modified | ||
| 252 | --- | 252 | --- |
| 253 | sequenceDiagram | 253 | sequenceDiagram |
| 254 | ····participant·client·as·Client·(or·Node) | 254 | ····participant·client·as·Client·(or·Node) |
| 255 | ····participant·EPMD | 255 | ····participant·EPMD |
| 256 | ···· | 256 | ···· |
| 257 | ····client·->>·EPMD:·NAMES_REQ | 257 | ····client·->>·EPMD:·NAMES_REQ |
| 258 | ····EPMD·-->>·client:·NAMES_RESP</code></pre><table><thead><tr><th·style="text-align:·left;">1</th></tr></thead><tbody><tr><td·style="text-align:·left;"><code·class="inline">110</code></td></tr></tbody></table><p><em>Table:·NAMES_REQ·(110)</em></p><p>The·response·for·a·<code·class="inline">NAMES_REQ</code>·is·as·follows:</p><table><thead><tr><th·style="text-align:·left;">4</th><th·style="text-align:·left;"></th></tr></thead><tbody><tr><td·style="text-align:·left;"><code·class="inline">EPMDPortNo</code></td><td·style="text-align:·left;"><code·class="inline">NodeInfo*</code></td></tr></tbody></table><p><em>Table:·NAMES_RESP</em></p><p><code·class="inline">NodeInfo</code>·is·a·string·written·for·each·active·node.·When·all·<code·class="inline">NodeInfo</code>·has | 258 | ····EPMD·-->>·client:·NAMES_RESP</code></pre><table><thead><tr><th·style="text-align:·left;">1</th></tr></thead><tbody><tr><td·style="text-align:·left;"><code·class="inline">110</code></td></tr></tbody></table><p><em>Table:·NAMES_REQ·(110)</em></p><p>The·response·for·a·<code·class="inline">NAMES_REQ</code>·is·as·follows:</p><table><thead><tr><th·style="text-align:·left;">4</th><th·style="text-align:·left;"></th></tr></thead><tbody><tr><td·style="text-align:·left;"><code·class="inline">EPMDPortNo</code></td><td·style="text-align:·left;"><code·class="inline">NodeInfo*</code></td></tr></tbody></table><p><em>Table:·NAMES_RESP</em></p><p><code·class="inline">NodeInfo</code>·is·a·string·written·for·each·active·node.·When·all·<code·class="inline">NodeInfo</code>·has |
| 259 | been·written·the·connection·is·closed·by·the·EPMD.</p><p><code·class="inline">NodeInfo</code>·is,·as·expressed·in·Erlang:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 259 | been·written·the·connection·is·closed·by·the·EPMD.</p><p><code·class="inline">NodeInfo</code>·is,·as·expressed·in·Erlang:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="8893101769-1">(</span><span·class="s">"name·~ts·at·port·</span><span·class="si">~p</span><span·class="si">~n</span><span·class="s">"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8893101769-2">[</span><span·[·...·truncated·by·diffoscope;·len:·194,·SHA:·ebf20cf124c6d9d48186d18641b18b98040ccf9c12308fccb5aaaccfa1e8568e·...·]-1">)</span><span·class="p">.</span></code></pre><h3·id="dump-all-data-from-epmd"·class="section-heading"> |
| 260 | ··<a·href="#dump-all-data-from-epmd"·class="hover-link"> | 260 | ··<a·href="#dump-all-data-from-epmd"·class="hover-link"> |
| 261 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 261 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 262 | ··</a> | 262 | ··</a> |
| 263 | ··<span·class="text">Dump·All·Data·from·EPMD</span> | 263 | ··<span·class="text">Dump·All·Data·from·EPMD</span> |
| 264 | </h3> | 264 | </h3> |
| 265 | <p>This·request·is·not·really·used,·it·is·to·be·regarded·as·a·debug·feature.</p><pre><code·class="mermaid">--- | 265 | <p>This·request·is·not·really·used,·it·is·to·be·regarded·as·a·debug·feature.</p><pre><code·class="mermaid">--- |
| 266 | title:·Dump·All·Data·from·EPMD | 266 | title:·Dump·All·Data·from·EPMD |
| 267 | --- | 267 | --- |
| 268 | sequenceDiagram | 268 | sequenceDiagram |
| 269 | ····participant·client·as·Client·(or·Node) | 269 | ····participant·client·as·Client·(or·Node) |
| 270 | ····participant·EPMD | 270 | ····participant·EPMD |
| 271 | ···· | 271 | ···· |
| 272 | ····client·->>·EPMD:·DUMP_REQ | 272 | ····client·->>·EPMD:·DUMP_REQ |
| 273 | ····EPMD·-->>·client:·DUMP_RESP</code></pre><table><thead><tr><th·style="text-align:·left;">1</th></tr></thead><tbody><tr><td·style="text-align:·left;"><code·class="inline">100</code></td></tr></tbody></table><p><em>Table:·DUMP_REQ</em></p><p>The·response·for·a·<code·class="inline">DUMP_REQ</code>·is·as·follows:</p><table><thead><tr><th·style="text-align:·left;">4</th><th·style="text-align:·left;"></th></tr></thead><tbody><tr><td·style="text-align:·left;"><code·class="inline">EPMDPortNo</code></td><td·style="text-align:·left;"><code·class="inline">NodeInfo*</code></td></tr></tbody></table><p><em>Table:·DUMP_RESP</em></p><p><code·class="inline">NodeInfo</code>·is·a·string·written·for·each·node·kept·in·the·EPMD.·When·all | 273 | ····EPMD·-->>·client:·DUMP_RESP</code></pre><table><thead><tr><th·style="text-align:·left;">1</th></tr></thead><tbody><tr><td·style="text-align:·left;"><code·class="inline">100</code></td></tr></tbody></table><p><em>Table:·DUMP_REQ</em></p><p>The·response·for·a·<code·class="inline">DUMP_REQ</code>·is·as·follows:</p><table><thead><tr><th·style="text-align:·left;">4</th><th·style="text-align:·left;"></th></tr></thead><tbody><tr><td·style="text-align:·left;"><code·class="inline">EPMDPortNo</code></td><td·style="text-align:·left;"><code·class="inline">NodeInfo*</code></td></tr></tbody></table><p><em>Table:·DUMP_RESP</em></p><p><code·class="inline">NodeInfo</code>·is·a·string·written·for·each·node·kept·in·the·EPMD.·When·all |
| 274 | <code·class="inline">NodeInfo</code>·has·been·written·the·connection·is·closed·by·the·EPMD.</p><p><code·class="inline">NodeInfo</code>·is,·as·expressed·in·Erlang:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 274 | <code·class="inline">NodeInfo</code>·has·been·written·the·connection·is·closed·by·the·EPMD.</p><p><code·class="inline">NodeInfo</code>·is,·as·expressed·in·Erlang:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="4536846604-1">(</span><span·class="s">"active·name·····~ts·at·port·</span><span·class="si">~p</span><span·class="s">,·fd·=·</span><span·class="si">~p</span><span·class="si">~n</span><span·class="s">"</span><span·class="p">,</span><span·class="w"> |
| 275 | ··········</span><span·class="p"·data-group-id=" | 275 | ··········</span><span·class="p"·data-group-id="4536846604-2">[</span><span·class="n">NodeName</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Port</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Fd</span><span·class="p"·data-group-id="4536846604-2">]</span><s[·...·truncated·by·diffoscope;·len:·266,·SHA:·25c11c8520e8089966121bd2397b308da2c899cca45f05aa93abc6d0740d9471·...·]-1">(</span><span·class="s">"old/unused·name·~ts·at·port·</span><span·class="si">~p</span><span·class="s">,·fd·=·</span><span·class="si">~p</span><span·class="s">·</span><span·class="si">~n</span><span·class="s">"</span><span·class="p">,</span><span·class="w"> |
| 276 | ··········</span><span·class="p"·data-group-id=" | 276 | ··········</span><span·class="p"·data-group-id="2860313394-2">[</span><span·class="n">NodeName</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Port</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Fd</span><span·class="p"·data-group-id="2860313394-2">]</span><s[·...·truncated·by·diffoscope;·len:·39,·SHA:·03b9457e3ce1bdf37c235e66389e671053eed1ea8272492885c063ae5f9a9746·...·]-1">)</span><span·class="p">.</span></code></pre><h3·id="kill-epmd"·class="section-heading"> |
| 277 | ··<a·href="#kill-epmd"·class="hover-link"> | 277 | ··<a·href="#kill-epmd"·class="hover-link"> |
| 278 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 278 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 279 | ··</a> | 279 | ··</a> |
| 280 | ··<span·class="text">Kill·EPMD</span> | 280 | ··<span·class="text">Kill·EPMD</span> |
| 281 | </h3> | 281 | </h3> |
| 282 | <p>This·request·kills·the·running·EPMD.·It·is·almost·never·used.</p><pre><code·class="mermaid">--- | 282 | <p>This·request·kills·the·running·EPMD.·It·is·almost·never·used.</p><pre><code·class="mermaid">--- |
| 283 | title:·Kill·EPMD | 283 | title:·Kill·EPMD |
| Offset 407, 54 lines modified | Offset 407, 54 lines modified | ||
| 407 | received·from·<code·class="inline">A</code>·is·correct·and·generates·a·digest·from·the·challenge | 407 | received·from·<code·class="inline">A</code>·is·correct·and·generates·a·digest·from·the·challenge |
| 408 | received·from·<code·class="inline">A</code>.·The·digest·is·then·sent·to·<code·class="inline">A</code>.·The·message·is·as·follows:</p><table><thead><tr><th·style="text-align:·left;">1</th><th·style="text-align:·left;">16</th></tr></thead><tbody><tr><td·style="text-align:·left;"><code·class="inline">'a'</code></td><td·style="text-align:·left;"><code·class="inline">Digest</code></td></tr></tbody></table><p><em>Table:·The·challenge_ack·message</em></p><p><code·class="inline">Digest</code>·is·the·digest·calculated·by·<code·class="inline">B</code>·for·<code·class="inline">A</code>'s·challenge.</p></li><li><p><strong>7)·check</strong>·-·<code·class="inline">A</code>·checks·the·digest·from·<code·class="inline">B</code>·and·the·connection·is·up.</p></li></ul><h3·id="semigraphic-view"·class="section-heading"> | 408 | received·from·<code·class="inline">A</code>.·The·digest·is·then·sent·to·<code·class="inline">A</code>.·The·message·is·as·follows:</p><table><thead><tr><th·style="text-align:·left;">1</th><th·style="text-align:·left;">16</th></tr></thead><tbody><tr><td·style="text-align:·left;"><code·class="inline">'a'</code></td><td·style="text-align:·left;"><code·class="inline">Digest</code></td></tr></tbody></table><p><em>Table:·The·challenge_ack·message</em></p><p><code·class="inline">Digest</code>·is·the·digest·calculated·by·<code·class="inline">B</code>·for·<code·class="inline">A</code>'s·challenge.</p></li><li><p><strong>7)·check</strong>·-·<code·class="inline">A</code>·checks·the·digest·from·<code·class="inline">B</code>·and·the·connection·is·up.</p></li></ul><h3·id="semigraphic-view"·class="section-heading"> |
| 409 | ··<a·href="#semigraphic-view"·class="hover-link"> | 409 | ··<a·href="#semigraphic-view"·class="hover-link"> |
| 410 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 410 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 411 | ··</a> | 411 | ··</a> |
| 412 | ··<span·class="text">Semigraphic·View</span> | 412 | ··<span·class="text">Semigraphic·View</span> |
| 413 | </h3> | 413 | </h3> |
| 414 | <pre><code·class="makeup·erlang"·translate="no"><span·class="n">A</span><span·class="w">·</span><span·class="p"·data-group-id=" | 414 | <pre><code·class="makeup·erlang"·translate="no"><span·class="n">A</span><span·class="w">·</span><span·class="p"·data-group-id="2302572714-1">(</span><span·class="ss">initiator</span><span·class="p"·data-group-id="2302572714-1">)</span><span·class="w">······································</span><span·class="n">B</span><span·class="w">·</span><span·class="p"·data-group-id="23025727[·...·truncated·by·diffoscope;·len:·86,·SHA:·c2ee5e6361ed93f4f115e0c38b95ec571166110de73bd83fa2f6513986620b8c·...·]4-2">)</span><span·class="w"> |
| 415 | </span><span·class="n">TCP</span><span·class="w">·</span><span·class="ss">connect</span><span·class="w">·</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">></span><span·class="w"> | 415 | </span><span·class="n">TCP</span><span·class="w">·</span><span·class="ss">connect</span><span·class="w">·</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">></span><span·class="w"> |
| 416 | ···················································</span><span·class="n">TCP</span><span·class="w">·</span><span·class="ss">accept</span><span·class="w"> | 416 | ···················································</span><span·class="n">TCP</span><span·class="w">·</span><span·class="ss">accept</span><span·class="w"> |
| 417 | </span><span·class="ss">send_name</span><span·class="w">·</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">></span><span·class="w"> | 417 | </span><span·class="ss">send_name</span><span·class="w">·</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">></span><span·class="w"> |
| 418 | ···················································</span><span·class="ss">recv_name</span><span·class="w"> | 418 | ···················································</span><span·class="ss">recv_name</span><span·class="w"> |
| 419 | ··</span><span·class="o"><-</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">-</span><span·class="w">·</span><span·class="ss">send_status</span><span·class="w"> | 419 | ··</span><span·class="o"><-</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">-</span><span·class="w">·</span><span·class="ss">send_status</span><span·class="w"> |
| 420 | </span><span·class="nf">recv_status</span><span·class="w"> | 420 | </span><span·class="nf">recv_status</span><span·class="w"> |
| 421 | </span><span·class="p"·data-group-id=" | 421 | </span><span·class="p"·data-group-id="2302572714-3">(</span><span·class="k">if</span><span·class="w">·</span><span·class="ss">status</span><span·class="w">·</span><span·class="ss">was</span><span·class="w">·</span><span·class="ss">'alive'</span><span·class="w"> |
| 422 | ·</span><span·class="ss">send_status</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 422 | ·</span><span·class="ss">send_status</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 423 | ···················································</span><span·class="ss">recv_status</span><span·class="p"·data-group-id=" | 423 | ···················································</span><span·class="ss">recv_status</span><span·class="p"·data-group-id="2302572714-3">)</span><span·class="w"> |
| 424 | ··························</span><span·class="p"·data-group-id=" | 424 | ··························</span><span·class="p"·data-group-id="2302572714-4">(</span><span·class="n">ChB</span><span·class="p"·data-group-id="2302572714-4">)</span><span·class="w">······················</span><span·class="n">ChB</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class=[·...·truncated·by·diffoscope;·len:·118,·SHA:·1d120cc1434c0580e95ceb8fb708b2d17a60ad9d526d6e8fc093a7377eefc625·...·]4-5">)</span><span·class="w"> |
| 425 | ··</span><span·class="o"><-</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">-</span><span·class="w">·</span><span·class="ss">send_challenge</span><span·class="w"> | 425 | ··</span><span·class="o"><-</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">-</span><span·class="w">·</span><span·class="ss">send_challenge</span><span·class="w"> |
| 426 | </span><span·class="nf">recv_challenge</span><span·class="w"> | 426 | </span><span·class="nf">recv_challenge</span><span·class="w"> |
| 427 | </span><span·class="p"·data-group-id=" | 427 | </span><span·class="p"·data-group-id="2302572714-6">(</span><span·class="k">if</span><span·class="w">·</span><span·class="ss">old</span><span·class="w">·</span><span·class="ss">send_name</span><span·class="w"> |
| 428 | ·</span><span·class="ss">send_complement</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 428 | ·</span><span·class="ss">send_complement</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 429 | ···················································</span><span·class="ss">recv_complement</span><span·class="p"·data-group-id=" | 429 | ···················································</span><span·class="ss">recv_complement</span><span·class="p"·data-group-id="2302572714-6">)</span><span·class="w"> |
| 430 | </span><span·class="n">ChA</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">gen_challenge</span><span·class="p"·data-group-id=" | 430 | </span><span·class="n">ChA</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">gen_challenge</span><span·class="p"·data-group-id="2302572714-7">(</span><span·class="p"·data-group-id="2302572714-7">)</span><span·class="p">,</span><span·class="w"> |
| 431 | </span><span·class="n">OCA</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">out_cookie</span><span·class="p"·data-group-id=" | 431 | </span><span·class="n">OCA</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">out_cookie</span><span·class="p"·data-group-id="2302572714-8">(</span><span·class="n">B</span><span·class="p"·data-group-id="2302572714-8">)</span><span·class="p">,</span><span·class="w"> |
| 432 | </span><span·class="n">DiA</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">gen_digest</span><span·class="p"·data-group-id=" | 432 | </span><span·class="n">DiA</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">gen_digest</span><span·class="p"·data-group-id="2302572714-9">(</span><span·class="n">ChB</span><span·class="p">,</span><span·class="w">·</span><span·class="n">OCA</span><span·class="p"·data-group-id="2302572714-9">)</span><span·class="w"> |
| 433 | ··························</span><span·class="p"·data-group-id=" | 433 | ··························</span><span·class="p"·data-group-id="2302572714-10">(</span><span·class="n">ChA</span><span·class="p">,</span><span·class="w">·</span><span·class="n">DiA</span><span·class="p"·data-group-id="2302572714-10">)</span><span·class="w"> |
| 434 | </span><span·class="ss">send_challenge_reply</span><span·class="w">·</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="p">-></span><span·class="w"> | 434 | </span><span·class="ss">send_challenge_reply</span><span·class="w">·</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="p">-></span><span·class="w"> |
| 435 | ···················································</span><span·class="ss">recv_challenge_reply</span><span·class="w"> | 435 | ···················································</span><span·class="ss">recv_challenge_reply</span><span·class="w"> |
| 436 | ···················································</span><span·class="n">ICB</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">in_cookie</span><span·class="p"·data-group-id=" | 436 | ···················································</span><span·class="n">ICB</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">in_cookie</span><span·class="p"·data-group-id="2302572714-11">(</span><span·class="n">A</span><span·class="p"·data-group-id="2302572714-11">)</span><span·class="p">,</span><span·class="w"> |
| 437 | ···················································</span><span·class="nc">check</span><span·class="p">:</span><span·class="w"> | 437 | ···················································</span><span·class="nc">check</span><span·class="p">:</span><span·class="w"> |
| 438 | ···················································</span><span·class="n">DiA</span><span·class="w">·</span><span·class="o">==</span><span·class="w">·</span><span·class="nf">gen_digest</span><span·class="w">·</span><span·class="p"·data-group-id=" | 438 | ···················································</span><span·class="n">DiA</span><span·class="w">·</span><span·class="o">==</span><span·class="w">·</span><span·class="nf">gen_digest</span><span·class="w">·</span><span·class="p"·data-group-id="2302572714-12">(</span><span·class="n">ChB</span><span·class="p">,</span><span·class="w">·</span><span·class="n">ICB</span><span·class="p"·data-group-id="2302572714-12">)</span><span·class="o">?</span><span·class="w"> |
| 439 | </span><span·class="w">···················································</span><span·class="p">-</span><span·class="w">·</span><span·class="na">if</span><span·class="w">·</span><span·class="n">OK</span><span·class="p">:</span><span·class="w"> | 439 | </span><span·class="w">···················································</span><span·class="p">-</span><span·class="w">·</span><span·class="na">if</span><span·class="w">·</span><span·class="n">OK</span><span·class="p">:</span><span·class="w"> |
| 440 | ····················································</span><span·class="n">OCB</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">out_cookie</span><span·class="p"·data-group-id=" | 440 | ····················································</span><span·class="n">OCB</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">out_cookie</span><span·class="p"·data-group-id="2302572714-13">(</span><span·class="n">A</span><span·class="p"·data-group-id="2302572714-13">)</span><span·class="p">,</span><span·class="w"> |
| 441 | ····················································</span><span·class="n">DiB</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">gen_digest</span><span·class="w">·</span><span·class="p"·data-group-id=" | 441 | ····················································</span><span·class="n">DiB</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">gen_digest</span><span·class="w">·</span><span·class="p"·data-group-id="2302572714-14">(</span><span·class="n">ChA</span><span·class="p">,</span><span·class="w">·</span><span·class="n">OCB</span><span·class="p"·data-group-id="2302572714-14">)</span><span·class="w"> |
| 442 | ··························</span><span·class="p"·data-group-id=" | 442 | ··························</span><span·class="p"·data-group-id="2302572714-15">(</span><span·class="n">DiB</span><span·class="p"·data-group-id="2302572714-15">)</span><span·class="w"> |
| 443 | ··</span><span·class="o"><-</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="w">·</span><span·class="ss">send_challenge_ack</span><span·class="w"> | 443 | ··</span><span·class="o"><-</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="w">·</span><span·class="ss">send_challenge_ack</span><span·class="w"> |
| 444 | </span><span·class="ss">recv_challenge_ack</span><span·class="w">··································</span><span·class="n">DONE</span><span·class="w"> | 444 | </span><span·class="ss">recv_challenge_ack</span><span·class="w">··································</span><span·class="n">DONE</span><span·class="w"> |
| 445 | </span><span·class="n">ICA</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">in_cookie</span><span·class="p"·data-group-id=" | 445 | </span><span·class="n">ICA</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">in_cookie</span><span·class="p"·data-group-id="2302572714-16">(</span><span·class="n">B</span><span·class="p"·data-group-id="2302572714-16">)</span><span·class="p">,</span><span·class="w">································</span><span·class="o">-</span><span·class="w">·</span><span·class="nc">else</span><span·class="p">:</span><span·class="w"> |
| 446 | </span><span·class="nc">check</span><span·class="p">:</span><span·class="w">··············································</span><span·class="n">CLOSE</span><span·class="w"> | 446 | </span><span·class="nc">check</span><span·class="p">:</span><span·class="w">··············································</span><span·class="n">CLOSE</span><span·class="w"> |
| 447 | </span><span·class="n">DiB</span><span·class="w">·</span><span·class="o">==</span><span·class="w">·</span><span·class="nf">gen_digest</span><span·class="p"·data-group-id=" | 447 | </span><span·class="n">DiB</span><span·class="w">·</span><span·class="o">==</span><span·class="w">·</span><span·class="nf">gen_digest</span><span·class="p"·data-group-id="2302572714-17">(</span><span·class="n">ChA</span><span·class="p">,</span><span·class="w">·</span><span·class="n">ICA</span><span·class="p"·data-group-id="2302572714-17">)</span><span·class="o">?</span><span·class="w"> |
| 448 | </span><span·class="p">-</span><span·class="w">·</span><span·class="na">if</span><span·class="w">·</span><span·class="n">OK</span><span·class="p">:</span><span·class="w"> | 448 | </span><span·class="p">-</span><span·class="w">·</span><span·class="na">if</span><span·class="w">·</span><span·class="n">OK</span><span·class="p">:</span><span·class="w"> |
| 449 | ·</span><span·class="n">DONE</span><span·class="w"> | 449 | ·</span><span·class="n">DONE</span><span·class="w"> |
| 450 | </span><span·class="p">-</span><span·class="w">·</span><span·class="na">else</span><span·class="p">:</span><span·class="w"> | 450 | </span><span·class="p">-</span><span·class="w">·</span><span·class="na">else</span><span·class="p">:</span><span·class="w"> |
| 451 | ·</span><span·class="n">CLOSE</span></code></pre><p><a·href=""·id="dflags"></a></p><h3·id="distribution-flags"·class="section-heading"> | 451 | ·</span><span·class="n">CLOSE</span></code></pre><p><a·href=""·id="dflags"></a></p><h3·id="distribution-flags"·class="section-heading"> |
| 452 | ··<a·href="#distribution-flags"·class="hover-link"> | 452 | ··<a·href="#distribution-flags"·class="hover-link"> |
| 453 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 453 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 454 | ··</a> | 454 | ··</a> |
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| 787 | ······<p·class="built-using"> | 787 | ······<p·class="built-using"> |
| 788 | ········Built·using | 788 | ········Built·using |
| 789 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 789 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 790 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 790 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 791 | ······</p> | 791 | ······</p> |
| 792 | <p>Copyright·©·1996-202 | 792 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 793 | ····</footer> | 793 | ····</footer> |
| 794 | ··</div> | 794 | ··</div> |
| 795 | </main> | 795 | </main> |
| 796 | </div> | 796 | </div> |
| 797 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 797 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 798 | ··<script> | 798 | ··<script> |
| 799 | ··let·initialized·=·false; | 799 | ··let·initialized·=·false; |
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| 1773 | ······<p·class="built-using"> | 1773 | ······<p·class="built-using"> |
| 1774 | ········Built·using | 1774 | ········Built·using |
| 1775 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1775 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1776 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1776 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1777 | ······</p> | 1777 | ······</p> |
| 1778 | <p>Copyright·©·1996-202 | 1778 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1779 | ····</footer> | 1779 | ····</footer> |
| 1780 | ··</div> | 1780 | ··</div> |
| 1781 | </main> | 1781 | </main> |
| 1782 | </div> | 1782 | </div> |
| 1783 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1783 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1784 | ··<script> | 1784 | ··<script> |
| 1785 | ··let·initialized·=·false; | 1785 | ··let·initialized·=·false; |
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| 434 | ··</a> | 434 | ··</a> |
| 435 | ··<span·class="text">SMALL_BIG_EXT</span> | 435 | ··<span·class="text">SMALL_BIG_EXT</span> |
| 436 | </h2> | 436 | </h2> |
| 437 | <table><thead><tr><th·style="text-align:·left;">1</th><th·style="text-align:·left;">1</th><th·style="text-align:·left;">1</th><th·style="text-align:·left;">n</th></tr></thead><tbody><tr><td·style="text-align:·left;"><code·class="inline">110</code></td><td·style="text-align:·left;"><code·class="inline">n</code></td><td·style="text-align:·left;"><code·class="inline">Sign</code></td><td·style="text-align:·left;"><code·class="inline">d(0)</code>·...·<code·class="inline">d(n-1)</code></td></tr></tbody></table><p>Bignums·are·stored·in·unary·form·with·a·<code·class="inline">Sign</code>·byte,·that·is,·0·if·the·bignum·is | 437 | <table><thead><tr><th·style="text-align:·left;">1</th><th·style="text-align:·left;">1</th><th·style="text-align:·left;">1</th><th·style="text-align:·left;">n</th></tr></thead><tbody><tr><td·style="text-align:·left;"><code·class="inline">110</code></td><td·style="text-align:·left;"><code·class="inline">n</code></td><td·style="text-align:·left;"><code·class="inline">Sign</code></td><td·style="text-align:·left;"><code·class="inline">d(0)</code>·...·<code·class="inline">d(n-1)</code></td></tr></tbody></table><p>Bignums·are·stored·in·unary·form·with·a·<code·class="inline">Sign</code>·byte,·that·is,·0·if·the·bignum·is |
| 438 | positive·and·1·if·it·is·negative.·The·digits·are·stored·with·the·least | 438 | positive·and·1·if·it·is·negative.·The·digits·are·stored·with·the·least |
| 439 | significant·byte·stored·first.·To·calculate·the·integer,·the·following·formula | 439 | significant·byte·stored·first.·To·calculate·the·integer,·the·following·formula |
| 440 | can·be·used:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">B</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">256</span><span·class="w"> | 440 | can·be·used:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">B</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">256</span><span·class="w"> |
| 441 | </span><span·class="p"·data-group-id=" | 441 | </span><span·class="p"·data-group-id="6272406605-1">(</span><span·class="ss">d0</span><span·class="o">*</span><span·class="n">B</span><span·class="err">^</span><span·class="mi">0</span><span·class="w">·</span><span·class="o">+</span><span·class="w">·</span><span·class="ss">d1</span><span·class[·...·truncated·by·diffoscope;·len:·952,·SHA:·99a817b35b6c97f9f6e2917dd5ef6392e161df472583d17f29f43a2725707780·...·]-1">)</span></code></pre><h2·id="large_big_ext"·class="section-heading"> |
| 442 | ··<a·href="#large_big_ext"·class="hover-link"> | 442 | ··<a·href="#large_big_ext"·class="hover-link"> |
| 443 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 443 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 444 | ··</a> | 444 | ··</a> |
| 445 | ··<span·class="text">LARGE_BIG_EXT</span> | 445 | ··<span·class="text">LARGE_BIG_EXT</span> |
| 446 | </h2> | 446 | </h2> |
| 447 | <table><thead><tr><th·style="text-align:·left;">1</th><th·style="text-align:·left;">4</th><th·style="text-align:·left;">1</th><th·style="text-align:·left;">n</th></tr></thead><tbody><tr><td·style="text-align:·left;"><code·class="inline">111</code></td><td·style="text-align:·left;"><code·class="inline">n</code></td><td·style="text-align:·left;"><code·class="inline">Sign</code></td><td·style="text-align:·left;"><code·class="inline">d(0)</code>·...·<code·class="inline">d(n-1)</code></td></tr></tbody></table><p>Same·as·<a·href="erl_ext_dist.html#small_big_ext"><code·class="inline">SMALL_BIG_EXT</code></a>·except·that·the·length | 447 | <table><thead><tr><th·style="text-align:·left;">1</th><th·style="text-align:·left;">4</th><th·style="text-align:·left;">1</th><th·style="text-align:·left;">n</th></tr></thead><tbody><tr><td·style="text-align:·left;"><code·class="inline">111</code></td><td·style="text-align:·left;"><code·class="inline">n</code></td><td·style="text-align:·left;"><code·class="inline">Sign</code></td><td·style="text-align:·left;"><code·class="inline">d(0)</code>·...·<code·class="inline">d(n-1)</code></td></tr></tbody></table><p>Same·as·<a·href="erl_ext_dist.html#small_big_ext"><code·class="inline">SMALL_BIG_EXT</code></a>·except·that·the·length |
| 448 | field·is·an·unsigned·4·byte·integer.</p><h2·id="reference_ext-deprecated"·class="section-heading"> | 448 | field·is·an·unsigned·4·byte·integer.</p><h2·id="reference_ext-deprecated"·class="section-heading"> |
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| 619 | ······<p·class="built-using"> | 619 | ······<p·class="built-using"> |
| 620 | ········Built·using | 620 | ········Built·using |
| 621 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 621 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 622 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 622 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 623 | ······</p> | 623 | ······</p> |
| 624 | <p>Copyright·©·1996-202 | 624 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 625 | ····</footer> | 625 | ····</footer> |
| 626 | ··</div> | 626 | ··</div> |
| 627 | </main> | 627 | </main> |
| 628 | </div> | 628 | </div> |
| 629 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 629 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 630 | ··<script> | 630 | ··<script> |
| 631 | ··let·initialized·=·false; | 631 | ··let·initialized·=·false; |
| Offset 161, 27 lines modified | Offset 161, 27 lines modified | ||
| 161 | } | 161 | } |
| 162 | static·ErlNifFunc·nif_funcs[]·= | 162 | static·ErlNifFunc·nif_funcs[]·= |
| 163 | { | 163 | { |
| 164 | ····{"hello",·0,·hello} | 164 | ····{"hello",·0,·hello} |
| 165 | }; | 165 | }; |
| 166 | ERL_NIF_INIT(niftest,nif_funcs,NULL,NULL,NULL,NULL)</code></pre><p>The·Erlang·module·can·look·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="5 | 166 | ERL_NIF_INIT(niftest,nif_funcs,NULL,NULL,NULL,NULL)</code></pre><p>The·Erlang·module·can·look·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="5478233021-1">(</span><span·class="ss">niftest</span><span·class="p"·data-group-id="5478233021-1">)</span><span·class="p">.</span><span·class="w"> |
| 167 | </span><span·class="w"> | 167 | </span><span·class="w"> |
| 168 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="5 | 168 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="5478233021-2">(</span><span·class="p"·data-group-id="5478233021-3">[</span><span·class="ss">init</span><span·class="p">/</span><span·class="mi">0</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">hello</span><span·class="p">/</span><spa[·...·truncated·by·diffoscope;·len:·115,·SHA:·f9a1c877e289bca4523ece3d4518f333946d8011074e0f45ac2b2a1df4e67929·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 169 | </span><span·class="w"> | 169 | </span><span·class="w"> |
| 170 | </span><span·class="p">-</span><span·class="na">nifs</span><span·class="p"·data-group-id="5 | 170 | </span><span·class="p">-</span><span·class="na">nifs</span><span·class="p"·data-group-id="5478233021-4">(</span><span·class="p"·data-group-id="5478233021-5">[</span><span·class="ss">hello</span><span·class="p">/</span><span·class="mi">0</span><span·class="p"·data-group-id="5478233021-5">]</span><span·class="p"·data-group-id="5478233021-4">)</span><span·class="p">.</span><span·class="w"> |
| 171 | </span><span·class="w"> | 171 | </span><span·class="w"> |
| 172 | </span><span·class="p">-</span><span·class="na">on_load</span><span·class="p"·data-group-id="5 | 172 | </span><span·class="p">-</span><span·class="na">on_load</span><span·class="p"·data-group-id="5478233021-6">(</span><span·class="ss">init</span><span·class="p">/</span><span·class="mi">0</span><span·class="p"·data-group-id="5478233021-6">)</span><span·class="p">.</span><span·class="w"> |
| 173 | </span><span·class="nf">init</span><span·class="p"·data-group-id="5 | 173 | </span><span·class="nf">init</span><span·class="p"·data-group-id="5478233021-7">(</span><span·class="p"·data-group-id="5478233021-7">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 174 | ······</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">load_nif</span><span·class="p"·data-group-id="5 | 174 | ······</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">load_nif</span><span·class="p"·data-group-id="5478233021-8">(</span><span·class="s">"./niftest"</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">0</span><span·class="p"·data-group-id="5478233021-8">)</span><span·class="p">.</span><span·class="w"> |
| 175 | </span><span·class="nf">hello</span><span·class="p"·data-group-id="5 | 175 | </span><span·class="nf">hello</span><span·class="p"·data-group-id="5478233021-9">(</span><span·class="p"·data-group-id="5478233021-9">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 176 | ······</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">nif_error</span><span·class="p"·data-group-id="5 | 176 | ······</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">nif_error</span><span·class="p"·data-group-id="5478233021-10">(</span><span·class="s">"NIF·library·not·loaded"</span><span·class="p"·data-group-id="5478233021-10">)</span><span·class="p">.</span></code></pre><p>Compile·and·test·can·look·as·follows·(on·Linux):</p><pre><code·class="text">$>·gcc·-fPIC·-shared·-o·niftest.so·niftest.c·-I·$ERL_ROOT/usr/include/ |
| 177 | $>·erl | 177 | $>·erl |
| 178 | 1>·c(niftest). | 178 | 1>·c(niftest). |
| 179 | {ok,niftest} | 179 | {ok,niftest} |
| 180 | 2>·niftest:hello(). | 180 | 2>·niftest:hello(). |
| 181 | "Hello·world!"</code></pre><p>In·the·example·above·the·<a·href="../../../doc/system/code_loading.html#on_load"><em><code·class="inline">on_load</code></em></a> | 181 | "Hello·world!"</code></pre><p>In·the·example·above·the·<a·href="../../../doc/system/code_loading.html#on_load"><em><code·class="inline">on_load</code></em></a> |
| 182 | directive·is·used·get·function·<code·class="inline">init</code>·called·automatically·when·the·module·is | 182 | directive·is·used·get·function·<code·class="inline">init</code>·called·automatically·when·the·module·is |
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| 2872 | ······<p·class="built-using"> | 2872 | ······<p·class="built-using"> |
| 2873 | ········Built·using | 2873 | ········Built·using |
| 2874 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 2874 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 2875 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 2875 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 2876 | ······</p> | 2876 | ······</p> |
| 2877 | <p>Copyright·©·1996-202 | 2877 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 2878 | ····</footer> | 2878 | ····</footer> |
| 2879 | ··</div> | 2879 | ··</div> |
| 2880 | </main> | 2880 | </main> |
| 2881 | </div> | 2881 | </div> |
| 2882 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 2882 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 2883 | ··<script> | 2883 | ··<script> |
| 2884 | ··let·initialized·=·false; | 2884 | ··let·initialized·=·false; |
| Offset 398, 15 lines modified | Offset 398, 15 lines modified | ||
| 398 | ························when·Filename·::·<a·href="erlang.html#t:string/0">string</a>(),·FileInfo·::·<a·href="../../../lib/kernel-10.3/doc/html/file.html#t:file_info/0">file:file_info</a>().</pre> | 398 | ························when·Filename·::·<a·href="erlang.html#t:string/0">string</a>(),·FileInfo·::·<a·href="../../../lib/kernel-10.3/doc/html/file.html#t:file_info/0">file:file_info</a>().</pre> |
| 399 | ······</div> | 399 | ······</div> |
| 400 | <p>Retrieves·information·about·a·file.</p><p>Returns·<code·class="inline">{ok,·FileInfo}</code>·if·successful,·otherwise·<code·class="inline">error</code>.·<code·class="inline">FileInfo</code>·is·a | 400 | <p>Retrieves·information·about·a·file.</p><p>Returns·<code·class="inline">{ok,·FileInfo}</code>·if·successful,·otherwise·<code·class="inline">error</code>.·<code·class="inline">FileInfo</code>·is·a |
| 401 | record·<a·href="../../../lib/kernel-10.3/doc/html/file.html#t:file_info/0"><code·class="inline">file_info</code></a>,·defined·in·the·Kernel·include·file | 401 | record·<a·href="../../../lib/kernel-10.3/doc/html/file.html#t:file_info/0"><code·class="inline">file_info</code></a>,·defined·in·the·Kernel·include·file |
| 402 | ·<code·class="inline">file.hrl</code>.·Include·the·following·directive·in·the·module·from·which·the | 402 | ·<code·class="inline">file.hrl</code>.·Include·the·following·directive·in·the·module·from·which·the |
| 403 | function·is·called:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id="6 | 403 | function·is·called:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id="6403260043-1">(</span><span·class="s">"kernel/include/file.hrl"</span><span·class="p"·data-group-id="6403260043-1">)</span><span·class="p">.</span></code></pre><p>For·more·information·about·the·record·see·<a·href="../../../lib/kernel-10.3/doc/html/file.html#read_file_info/2"><code·class="inline">file:read_file_info/2</code></a>.</p><p><code·class="inline">Filename</code>·can·also·be·a·file·in·an·archive,·for·example, |
| 404 | <code·class="inline">$OTPROOT/lib/mnesia-4.4.7.ez/mnesia-4.4.7/ebin/mnesia</code>.·For·information | 404 | <code·class="inline">$OTPROOT/lib/mnesia-4.4.7.ez/mnesia-4.4.7/ebin/mnesia</code>.·For·information |
| 405 | about·archive·files,·see·<a·href="../../../lib/kernel-10.3/doc/html/code.html"><code·class="inline">code</code></a>.</p> | 405 | about·archive·files,·see·<a·href="../../../lib/kernel-10.3/doc/html/code.html"><code·class="inline">code</code></a>.</p> |
| 406 | ··</section> | 406 | ··</section> |
| 407 | </section> | 407 | </section> |
| 408 | <section·class="detail"·id="read_link_info/1"> | 408 | <section·class="detail"·id="read_link_info/1"> |
| 409 | ··<div·class="detail-header"> | 409 | ··<div·class="detail-header"> |
| Offset 486, 15 lines modified | Offset 486, 15 lines modified | ||
| 486 | ······<p·class="built-using"> | 486 | ······<p·class="built-using"> |
| 487 | ········Built·using | 487 | ········Built·using |
| 488 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 488 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 489 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 489 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 490 | ······</p> | 490 | ······</p> |
| 491 | <p>Copyright·©·1996-202 | 491 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 492 | ····</footer> | 492 | ····</footer> |
| 493 | ··</div> | 493 | ··</div> |
| 494 | </main> | 494 | </main> |
| 495 | </div> | 495 | </div> |
| 496 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 496 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 497 | ··<script> | 497 | ··<script> |
| 498 | ··let·initialized·=·false; | 498 | ··let·initialized·=·false; |
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| 145 | ··<span·class="text">Erl·Tracer·Module·Example</span> | 145 | ··<span·class="text">Erl·Tracer·Module·Example</span> |
| 146 | </h2> | 146 | </h2> |
| 147 | <p>In·this·example,·a·tracer·module·with·a·NIF·back·end·sends·a·message·for·each | 147 | <p>In·this·example,·a·tracer·module·with·a·NIF·back·end·sends·a·message·for·each |
| 148 | <code·class="inline">send</code>·trace·tag·containing·only·the·sender·and·receiver.·Using·this·tracer | 148 | <code·class="inline">send</code>·trace·tag·containing·only·the·sender·and·receiver.·Using·this·tracer |
| 149 | module,·a·much·more·lightweight·message·tracer·is·used,·which·only·records·who | 149 | module,·a·much·more·lightweight·message·tracer·is·used,·which·only·records·who |
| 150 | sent·messages·to·who.</p><p>The·following·is·an·example·session·using·it·on·Linux:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="sc">$·</span><span·class="ss">gcc</span><span·class="w">·</span><span·class="o">-</span><span·class="n">I</span><span·class="w">·</span><span·class="ss">erts</span><span·class="o">-</span><span·class="mf">8.0</span><span·class="o">/</span><span·class="ss">include</span><span·class="o">/</span><span·class="w">·</span><span·class="o">-</span><span·class="ss">fPIC</span><span·class="w">·</span><span·class="o">-</span><span·class="ss">shared</span><span·class="w">·</span><span·class="o">-</span><span·class="ss">o</span><span·class="w">·</span><span·class="ss">erl_msg_tracer</span><span·class="p">.</span><span·class="ss">so</span><span·class="w">·</span><span·class="ss">erl_msg_tracer</span><span·class="p">.</span><span·class="ss">c</span><span·class="w"> | 150 | sent·messages·to·who.</p><p>The·following·is·an·example·session·using·it·on·Linux:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="sc">$·</span><span·class="ss">gcc</span><span·class="w">·</span><span·class="o">-</span><span·class="n">I</span><span·class="w">·</span><span·class="ss">erts</span><span·class="o">-</span><span·class="mf">8.0</span><span·class="o">/</span><span·class="ss">include</span><span·class="o">/</span><span·class="w">·</span><span·class="o">-</span><span·class="ss">fPIC</span><span·class="w">·</span><span·class="o">-</span><span·class="ss">shared</span><span·class="w">·</span><span·class="o">-</span><span·class="ss">o</span><span·class="w">·</span><span·class="ss">erl_msg_tracer</span><span·class="p">.</span><span·class="ss">so</span><span·class="w">·</span><span·class="ss">erl_msg_tracer</span><span·class="p">.</span><span·class="ss">c</span><span·class="w"> |
| 151 | </span><span·class="sc">$·</span><span·class="ss">erl</span><span·class="w"> | 151 | </span><span·class="sc">$·</span><span·class="ss">erl</span><span·class="w"> |
| 152 | </span><span·class="n">Erlang</span><span·class="o">/</span><span·class="n">OTP</span><span·class="w">·</span><span·class="mi">19</span><span·class="w">·</span><span·class="p"·data-group-id=" | 152 | </span><span·class="n">Erlang</span><span·class="o">/</span><span·class="n">OTP</span><span·class="w">·</span><span·class="mi">19</span><span·class="w">·</span><span·class="p"·data-group-id="7717829289-1">[</span><span·class="n">DEVELOPMENT</span><span·class="p"·data-group-id="7717829289-1">]</span><span·class="w">·</span><span·class="p"·data-group-id="7717829289-2">[</span><span·class="ss">erts</span><span·class="o">-</span><span·class="mf">8[·...·truncated·by·diffoscope;·len:·1414,·SHA:·ef66165b571ca2b9452026e4be01724558c695f8bef9a2e3aa83a5f981222db1·...·]-8">]</span><span·class="w"> |
| 153 | </span><span·class="n">Eshell</span><span·class="w">·</span><span·class="n">V8</span><span·class="p">.</span><span·class="mi">0</span><span·class="w">··</span><span·class="p"·data-group-id=" | 153 | </span><span·class="n">Eshell</span><span·class="w">·</span><span·class="n">V8</span><span·class="p">.</span><span·class="mi">0</span><span·class="w">··</span><span·class="p"·data-group-id="7717829289-9">(</span><span·class="ss">abort</span><span·class="w">·</span><span·class="ss">with</span><span·class="w">·</span><span·class="err">^</span><span·class="n">G</span><span·class="p"·data-group-id="7717829289-9">)</span><span·class="gp·unselectable"> |
| 154 | 1>·</span><span·class="nf">c</span><span·class="p"·data-group-id=" | 154 | 1>·</span><span·class="nf">c</span><span·class="p"·data-group-id="7717829289-10">(</span><span·class="ss">erl_msg_tracer</span><span·class="p"·data-group-id="7717829289-10">)</span><span·class="p">,</span><span·class="w">·</span><span·class="nc">erl_msg_tracer</span><span·class="p">:</span><span·class="nf">load</span><sp[·...·truncated·by·diffoscope;·len:·92,·SHA:·7a4045c96ffbd4556ba58bd80222c0b6ac965ae91278623193de51db1c1ffc2f·...·]-11">)</span><span·class="p">.</span><span·class="w"> |
| 155 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> | 155 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> |
| 156 | 2>·</span><span·class="n">Tracer</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">spawn</span><span·class="p"·data-group-id=" | 156 | 2>·</span><span·class="n">Tracer</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">spawn</span><span·class="p"·data-group-id="7717829289-12">(</span><span·class="k">fun</span><span·class="w">·</span><span·class="n">F</span><span·class="p"·data-group-id="7717829289-13">(</span><span·class="p"·data-group-id="7717829289-13">)</span><span·class="w">·</span><span·class="p">-></span[·...·truncated·by·diffoscope;·len:·954,·SHA:·225e1e36a864d46b6007a225da3a70d76b14eb2c00eb342ab3fffc7e6039feea·...·]-12">)</span><span·class="p">.</span><span·class="w"> |
| 157 | </span><span·class="o"><</span><span·class="mf">0.37</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="gp·unselectable"> | 157 | </span><span·class="o"><</span><span·class="mf">0.37</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="gp·unselectable"> |
| 158 | 3>·</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">trace</span><span·class="p"·data-group-id=" | 158 | 3>·</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">trace</span><span·class="p"·data-group-id="7717829289-17">(</span><span·class="ss">new</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">true</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="7717829289-18">[</span><span·class="nb">send</span>[·...·truncated·by·diffoscope;·len:·420,·SHA:·2efe2e555a53c08d551673fcf627924fccfa527f6db389fd9d15182c4c20d4e9·...·]-17">)</span><span·class="p">.</span><span·class="w"> |
| 159 | </span><span·class="mi">0</span><span·class="w"> | 159 | </span><span·class="mi">0</span><span·class="w"> |
| 160 | </span><span·class="p"·data-group-id=" | 160 | </span><span·class="p"·data-group-id="7717829289-20">{</span><span·class="nb">trace</span><span·class="p">,</span><span·class="o"><</span><span·class="mf">0.39</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="p">,</span><span·class="o"><</spa[·...·truncated·by·diffoscope;·len:·147,·SHA:·2f21882cdae932524316fc10220749df5a137a97d7829bf737d5091fd057c613·...·]-20">}</span><span·class="gp·unselectable"> |
| 161 | 4>·</span><span·class="p"·data-group-id=" | 161 | 4>·</span><span·class="p"·data-group-id="7717829289-21">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">D</span><span·class="p"·data-group-id="7717829289-21">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·cla[·...·truncated·by·diffoscope;·len:·375,·SHA:·c4e84df96570c6e3443884da80950fb51d5202e184ec280f4b348f3ef22e9ccc·...·]-22">)</span><span·class="p">.</span><span·class="w"> |
| 162 | </span><span·class="p"·data-group-id=" | 162 | </span><span·class="p"·data-group-id="7717829289-24">{</span><span·class="nb">trace</span><span·class="p">,</span><span·class="p">#</span><span·class="n">Port</span><span·class="o"><</span><span·class="mf">0.486</span><span·class="o">></span><span·class="p">,</span><span·class="o"><</[·...·truncated·by·diffoscope;·len:·150,·SHA:·54e6ee6fda08b03eef082f3be2121179543df5dd7ecc7e52ca240a5c5ec743d9·...·]-24">}</span><span·class="w"> |
| 163 | </span><span·class="p"·data-group-id=" | 163 | </span><span·class="p"·data-group-id="7717829289-25">{</span><span·class="nb">trace</span><span·class="p">,</span><span·class="o"><</span><span·class="mf">0.40</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="p">,</span><span·class="o"><</spa[·...·truncated·by·diffoscope;·len:·147,·SHA:·7397b7682e1283ba627ae45ca04420dde52d6732edb1982519c480e87dd3af07·...·]-25">}</span><span·class="w"> |
| 164 | </span><span·class="p"·data-group-id=" | 164 | </span><span·class="p"·data-group-id="7717829289-26">{</span><span·class="nb">trace</span><span·class="p">,</span><span·class="p">#</span><span·class="n">Port</span><span·class="o"><</span><span·class="mf">0.487</span><span·class="o">></span><span·class="p">,</span><span·class="o"><</[·...·truncated·by·diffoscope;·len:·149,·SHA:·718ad56515ef0a6037844a70d14ac70eb1fbc007600137b6bb2761d7710e178a·...·]-26">}</span><span·class="w"> |
| 165 | </span><span·class="p"·data-group-id=" | 165 | </span><span·class="p"·data-group-id="7717829289-27">{</span><span·class="nb">trace</span><span·class="p">,</span><span·class="p">#</span><span·class="n">Port</span><span·class="o"><</span><span·class="mf">0.488</span><span·class="o">></span><span·class="p">,</span><span·class="o"><</[·...·truncated·by·diffoscope;·len:·149,·SHA:·718ad56515ef0a6037844a70d14ac70eb1fbc007600137b6bb2761d7710e178a·...·]-27">}</span><span·class="w"> |
| 166 | </span><span·class="p"·data-group-id=" | 166 | </span><span·class="p"·data-group-id="7717829289-28">{</span><span·class="nb">trace</span><span·class="p">,</span><span·class="p">#</span><span·class="n">Port</span><span·class="o"><</span><span·class="mf">0.489</span><span·class="o">></span><span·class="p">,</span><span·class="o"><</[·...·truncated·by·diffoscope;·len:·149,·SHA:·718ad56515ef0a6037844a70d14ac70eb1fbc007600137b6bb2761d7710e178a·...·]-28">}</span><span·class="w"> |
| 167 | </span><span·class="p"·data-group-id=" | 167 | </span><span·class="p"·data-group-id="7717829289-29">{</span><span·class="nb">trace</span><span·class="p">,</span><span·class="p">#</span><span·class="n">Port</span><span·class="o"><</span><span·class="mf">0.490</span><span·class="o">></span><span·class="p">,</span><span·class="o"><</[·...·truncated·by·diffoscope;·len:·149,·SHA:·718ad56515ef0a6037844a70d14ac70eb1fbc007600137b6bb2761d7710e178a·...·]-29">}</span><span·class="w"> |
| 168 | </span><span·class="p"·data-group-id=" | 168 | </span><span·class="p"·data-group-id="7717829289-30">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="o"><</span><span·class="mf">0.40</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="p"·data-group-id="7717829289-30">}</span><span·class="w"> |
| 169 | </span><span·class="p"·data-group-id=" | 169 | </span><span·class="p"·data-group-id="7717829289-31">{</span><span·class="nb">trace</span><span·class="p">,</span><span·class="o"><</span><span·class="mf">0.41</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="p">,</span><span·class="o"><</spa[·...·truncated·by·diffoscope;·len:·147,·SHA:·2f21882cdae932524316fc10220749df5a137a97d7829bf737d5091fd057c613·...·]-31">}</span><span·class="w"> |
| 170 | </span><span·class="mi">5</span><span·class="o">></span></code></pre><p><code·class="inline">erl_msg_tracer.erl</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 170 | </span><span·class="mi">5</span><span·class="o">></span></code></pre><p><code·class="inline">erl_msg_tracer.erl</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="5202864924-1">(</span><span·class="ss">erl_msg_tracer</span><span·class="p"·data-group-id="5202864924-1">)</span><span·class="p">.</span><span·class="w"> |
| 171 | </span><span·class="w"> | 171 | </span><span·class="w"> |
| 172 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 172 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="5202864924-2">(</span><span·class="p"·data-group-id="5202864924-3">[</span><span·class="ss">enabled</span><span·class="p">/</span><span·class="mi">3</span><span·class="p">,</span><span·class="w">·</span><span·class="nb">trace</span><span·class="p">/</span>[·...·truncated·by·diffoscope;·len:·244,·SHA:·1358c1ba75317857f7215864da9d90deae3555b7bceb765f5fc30f18fb92ae93·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 173 | </span><span·class="nf">load</span><span·class="p"·data-group-id=" | 173 | </span><span·class="nf">load</span><span·class="p"·data-group-id="5202864924-4">(</span><span·class="p"·data-group-id="5202864924-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 174 | ····</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">load_nif</span><span·class="p"·data-group-id=" | 174 | ····</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">load_nif</span><span·class="p"·data-group-id="5202864924-5">(</span><span·class="s">"erl_msg_tracer"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="5202864924-6">[</span><span·class="p"·data-group-id="5202864924-6">]</span><span·class="p"·data-group-id="[·...·truncated·by·diffoscope;·len:·10,·SHA:·5212267042c358454a9085ae0df84af1dcf3a36df207d5661e69000608db6140·...·]-5">)</span><span·class="p">.</span><span·class="w"> |
| 175 | </span><span·class="nf">enabled</span><span·class="p"·data-group-id=" | 175 | </span><span·class="nf">enabled</span><span·class="p"·data-group-id="5202864924-7">(</span><span·class="p">_</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="p"·data-group-id="5202864924-7">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 176 | ····</span><span·class="ss">error</span><span·class="p">.</span><span·class="w"> | 176 | ····</span><span·class="ss">error</span><span·class="p">.</span><span·class="w"> |
| 177 | </span><span·class="nf">trace</span><span·class="p"·data-group-id=" | 177 | </span><span·class="nf">trace</span><span·class="p"·data-group-id="5202864924-8">(</span><span·class="p">_</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_<[·...·truncated·by·diffoscope;·len:·119,·SHA:·8557917f23b379b0d66f0c7f06d8ff8d38733aa16edd379147e09554365df385·...·]-8">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 178 | ····</span><span·class="ss">error</span><span·class="p">.</span></code></pre><p><code·class="inline">erl_msg_tracer.c</code>:</p><pre><code·class="c">#include·<erl_nif.h> | 178 | ····</span><span·class="ss">error</span><span·class="p">.</span></code></pre><p><code·class="inline">erl_msg_tracer.c</code>:</p><pre><code·class="c">#include·<erl_nif.h> |
| 179 | /*·NIF·interface·declarations·*/ | 179 | /*·NIF·interface·declarations·*/ |
| 180 | static·int·load(ErlNifEnv*·env,·void**·priv_data,·ERL_NIF_TERM·load_info); | 180 | static·int·load(ErlNifEnv*·env,·void**·priv_data,·ERL_NIF_TERM·load_info); |
| 181 | static·int·upgrade(ErlNifEnv*·env,·void**·priv_data,·void**·old_priv_data,·ERL_NIF_TERM·load_info); | 181 | static·int·upgrade(ErlNifEnv*·env,·void**·priv_data,·void**·old_priv_data,·ERL_NIF_TERM·load_info); |
| 182 | static·void·unload(ErlNifEnv*·env,·void*·priv_data); | 182 | static·void·unload(ErlNifEnv*·env,·void*·priv_data); |
| Offset 1657, 15 lines modified | Offset 1657, 15 lines modified | ||
| 1657 | ······<p·class="built-using"> | 1657 | ······<p·class="built-using"> |
| 1658 | ········Built·using | 1658 | ········Built·using |
| 1659 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1659 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1660 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1660 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1661 | ······</p> | 1661 | ······</p> |
| 1662 | <p>Copyright·©·1996-202 | 1662 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1663 | ····</footer> | 1663 | ····</footer> |
| 1664 | ··</div> | 1664 | ··</div> |
| 1665 | </main> | 1665 | </main> |
| 1666 | </div> | 1666 | </div> |
| 1667 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1667 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1668 | ··<script> | 1668 | ··<script> |
| 1669 | ··let·initialized·=·false; | 1669 | ··let·initialized·=·false; |
| Offset 296, 15 lines modified | Offset 296, 15 lines modified | ||
| 296 | ······<p·class="built-using"> | 296 | ······<p·class="built-using"> |
| 297 | ········Built·using | 297 | ········Built·using |
| 298 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 298 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 299 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 299 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 300 | ······</p> | 300 | ······</p> |
| 301 | <p>Copyright·©·1996-202 | 301 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 302 | ····</footer> | 302 | ····</footer> |
| 303 | ··</div> | 303 | ··</div> |
| 304 | </main> | 304 | </main> |
| 305 | </div> | 305 | </div> |
| 306 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 306 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 307 | ··<script> | 307 | ··<script> |
| 308 | ··let·initialized·=·false; | 308 | ··let·initialized·=·false; |
| Offset 401, 15 lines modified | Offset 401, 15 lines modified | ||
| 401 | ······<p·class="built-using"> | 401 | ······<p·class="built-using"> |
| 402 | ········Built·using | 402 | ········Built·using |
| 403 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 403 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 404 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 404 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 405 | ······</p> | 405 | ······</p> |
| 406 | <p>Copyright·©·1996-202 | 406 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 407 | ····</footer> | 407 | ····</footer> |
| 408 | ··</div> | 408 | ··</div> |
| 409 | </main> | 409 | </main> |
| 410 | </div> | 410 | </div> |
| 411 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 411 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 412 | ··<script> | 412 | ··<script> |
| 413 | ··let·initialized·=·false; | 413 | ··let·initialized·=·false; |
| Offset 534, 15 lines modified | Offset 534, 15 lines modified | ||
| 534 | ······<p·class="built-using"> | 534 | ······<p·class="built-using"> |
| 535 | ········Built·using | 535 | ········Built·using |
| 536 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 536 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 537 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 537 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 538 | ······</p> | 538 | ······</p> |
| 539 | <p>Copyright·©·1996-202 | 539 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 540 | ····</footer> | 540 | ····</footer> |
| 541 | ··</div> | 541 | ··</div> |
| 542 | </main> | 542 | </main> |
| 543 | </div> | 543 | </div> |
| 544 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 544 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 545 | ··<script> | 545 | ··<script> |
| 546 | ··let·initialized·=·false; | 546 | ··let·initialized·=·false; |
| Offset 127, 57 lines modified | Offset 127, 57 lines modified | ||
| 127 | <p>Run·a·script·written·in·Erlang.</p><h2·id="synopsis"·class="section-heading"> | 127 | <p>Run·a·script·written·in·Erlang.</p><h2·id="synopsis"·class="section-heading"> |
| 128 | ··<a·href="#synopsis"·class="hover-link"> | 128 | ··<a·href="#synopsis"·class="hover-link"> |
| 129 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 129 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 130 | ··</a> | 130 | ··</a> |
| 131 | ··<span·class="text">Synopsis</span> | 131 | ··<span·class="text">Synopsis</span> |
| 132 | </h2> | 132 | </h2> |
| 133 | <pre><code·class="makeup·erlang"·translate="no"><span·class="ss">script</span><span·class="o">-</span><span·class="ss">name</span><span·class="w">·</span><span·class="p"·data-group-id=" | 133 | <pre><code·class="makeup·erlang"·translate="no"><span·class="ss">script</span><span·class="o">-</span><span·class="ss">name</span><span·class="w">·</span><span·class="p"·data-group-id="2312862799-1">[</span><span·class="ss">arg1</span><span·class="w">·</span><span·class="ss">arg2</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p"·data-group-id="2312862799-1">]</span></code></pre><h2·id="description"·class="section-heading"> |
| 134 | ··<a·href="#description"·class="hover-link"> | 134 | ··<a·href="#description"·class="hover-link"> |
| 135 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 135 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 136 | ··</a> | 136 | ··</a> |
| 137 | ··<span·class="text">Description</span> | 137 | ··<span·class="text">Description</span> |
| 138 | </h2> | 138 | </h2> |
| 139 | <p><code·class="inline">escript</code>·provides·support·for·running·short·Erlang·programs·without·having·to | 139 | <p><code·class="inline">escript</code>·provides·support·for·running·short·Erlang·programs·without·having·to |
| 140 | compile·them·first,·and·an·easy·way·to·retrieve·the·command-line·arguments. | 140 | compile·them·first,·and·an·easy·way·to·retrieve·the·command-line·arguments. |
| 141 | <code·class="inline">escript</code>s·are·created·by·either·writing·them·by·hand·or·using·<a·href="../../../lib/stdlib-7.0/doc/html/escript.html#create/2"><code·class="inline">escript:create/2</code></a>.</p><p>escripts·are·run·by·directly·invoking·them·(does·not·work·on·Windows):</p><pre><code·class="text">script-name·[arg1·arg2...]</code></pre><p>or·by·calling·the·<code·class="inline">escript</code>·program·(works·on·all·platforms):</p><pre><code·class="text">escript·[escript-flags]·script-name.escript·[arg1·arg2...]</code></pre><p>For·example:</p><pre><code·class="text">$·chmod·u+x·factorial | 141 | <code·class="inline">escript</code>s·are·created·by·either·writing·them·by·hand·or·using·<a·href="../../../lib/stdlib-7.0/doc/html/escript.html#create/2"><code·class="inline">escript:create/2</code></a>.</p><p>escripts·are·run·by·directly·invoking·them·(does·not·work·on·Windows):</p><pre><code·class="text">script-name·[arg1·arg2...]</code></pre><p>or·by·calling·the·<code·class="inline">escript</code>·program·(works·on·all·platforms):</p><pre><code·class="text">escript·[escript-flags]·script-name.escript·[arg1·arg2...]</code></pre><p>For·example:</p><pre><code·class="text">$·chmod·u+x·factorial |
| 142 | $·cat·factorial</code></pre><pre><code·class="makeup·erlang"·translate="no"><span·class="ch">#!/usr/bin/env·escript | 142 | $·cat·factorial</code></pre><pre><code·class="makeup·erlang"·translate="no"><span·class="ch">#!/usr/bin/env·escript |
| 143 | </span><span·class="c1">%%·-*-·erlang·-*-</span><span·class="w"> | 143 | </span><span·class="c1">%%·-*-·erlang·-*-</span><span·class="w"> |
| 144 | </span><span·class="c1">%%!·-sname·factorial·-mnesia·debug·verbose</span><span·class="w"> | 144 | </span><span·class="c1">%%!·-sname·factorial·-mnesia·debug·verbose</span><span·class="w"> |
| 145 | </span><span·class="nf">main</span><span·class="p"·data-group-id=" | 145 | </span><span·class="nf">main</span><span·class="p"·data-group-id="6226662479-1">(</span><span·class="p"·data-group-id="6226662479-2">[</span><span·class="n">String</span><span·class="p"·data-group-id="6226662479-2">]</span><span·class="p"·data-group-id="6226662479-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 146 | ····</span><span·class="k">try</span><span·class="w"> | 146 | ····</span><span·class="k">try</span><span·class="w"> |
| 147 | ········</span><span·class="n">N</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">list_to_integer</span><span·class="p"·data-group-id=" | 147 | ········</span><span·class="n">N</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">list_to_integer</span><span·class="p"·data-group-id="6226662479-3">(</span><span·class="n">String</span><span·class="p"·data-group-id="6226662479-3">)</span><span·class="p">,</span><span·class="w"> |
| 148 | ········</span><span·class="n">F</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fac</span><span·class="p"·data-group-id=" | 148 | ········</span><span·class="n">F</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fac</span><span·class="p"·data-group-id="6226662479-4">(</span><span·class="n">N</span><span·class="p"·data-group-id="6226662479-4">)</span><span·class="p">,</span><span·class="w"> |
| 149 | ········</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 149 | ········</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="6226662479-5">(</span><span·class="s">"factorial·</span><span·class="si">~w</span><span·class="s">·=·</span><span·class="si">~w</span><span·class="s">\n"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6226662[·...·truncated·by·diffoscope;·len:·180,·SHA:·8ab42796b573fa8b6794db0321cd48640abd40cedf0ea18aeae56410c9f63566·...·]9-5">)</span><span·class="w"> |
| 150 | ····</span><span·class="k">catch</span><span·class="w"> | 150 | ····</span><span·class="k">catch</span><span·class="w"> |
| 151 | ········</span><span·class="p">_</span><span·class="p">:</span><span·class="p">_</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 151 | ········</span><span·class="p">_</span><span·class="p">:</span><span·class="p">_</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 152 | ············</span><span·class="nf">usage</span><span·class="p"·data-group-id=" | 152 | ············</span><span·class="nf">usage</span><span·class="p"·data-group-id="6226662479-7">(</span><span·class="p"·data-group-id="6226662479-7">)</span><span·class="w"> |
| 153 | ····</span><span·class="k">end</span><span·class="p">;</span><span·class="w"> | 153 | ····</span><span·class="k">end</span><span·class="p">;</span><span·class="w"> |
| 154 | </span><span·class="nf">main</span><span·class="p"·data-group-id=" | 154 | </span><span·class="nf">main</span><span·class="p"·data-group-id="6226662479-8">(</span><span·class="p">_</span><span·class="p"·data-group-id="6226662479-8">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 155 | ····</span><span·class="nf">usage</span><span·class="p"·data-group-id=" | 155 | ····</span><span·class="nf">usage</span><span·class="p"·data-group-id="6226662479-9">(</span><span·class="p"·data-group-id="6226662479-9">)</span><span·class="p">.</span><span·class="w"> |
| 156 | </span><span·class="nf">usage</span><span·class="p"·data-group-id=" | 156 | </span><span·class="nf">usage</span><span·class="p"·data-group-id="6226662479-10">(</span><span·class="p"·data-group-id="6226662479-10">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 157 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 157 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="6226662479-11">(</span><span·class="s">"usage:·factorial·integer\n"</span><span·class="p"·data-group-id="6226662479-11">)</span><span·class="p">,</span><span·class="w"> |
| 158 | ····</span><span·class="nf">halt</span><span·class="p"·data-group-id=" | 158 | ····</span><span·class="nf">halt</span><span·class="p"·data-group-id="6226662479-12">(</span><span·class="mi">1</span><span·class="p"·data-group-id="6226662479-12">)</span><span·class="p">.</span><span·class="w"> |
| 159 | </span><span·class="nf">fac</span><span·class="p"·data-group-id=" | 159 | </span><span·class="nf">fac</span><span·class="p"·data-group-id="6226662479-13">(</span><span·class="mi">0</span><span·class="p"·data-group-id="6226662479-13">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="mi">1</span><span·class="p">;</span><span·class="w"> |
| 160 | </span><span·class="nf">fac</span><span·class="p"·data-group-id=" | 160 | </span><span·class="nf">fac</span><span·class="p"·data-group-id="6226662479-14">(</span><span·class="n">N</span><span·class="p"·data-group-id="6226662479-14">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">N</span><span·class="w">·</span><span·class="o">*</span><span·c[·...·truncated·by·diffoscope;·len:·211,·SHA:·52ec63f3035265d49fa1122471152edbefd76bd7804431f472fb9830a5b27994·...·]9-15">)</span><span·class="p">.</span></code></pre><pre><code·class="text">$·./factorial·5 |
| 161 | factorial·5·=·120 | 161 | factorial·5·=·120 |
| 162 | $·./factorial | 162 | $·./factorial |
| 163 | usage:·factorial·integer | 163 | usage:·factorial·integer |
| 164 | $·./factorial·five | 164 | $·./factorial·five |
| 165 | usage:·factorial·integer</code></pre><p>The·header·of·the·Erlang·script·in·the·example·differs·from·a·normal·Erlang | 165 | usage:·factorial·integer</code></pre><p>The·header·of·the·Erlang·script·in·the·example·differs·from·a·normal·Erlang |
| 166 | module.·The·first·line·is·intended·to·be·the·interpreter·line,·which·invokes | 166 | module.·The·first·line·is·intended·to·be·the·interpreter·line,·which·invokes |
| 167 | <code·class="inline">escript</code>.</p><p>However,·if·you·invoke·the·<code·class="inline">escript</code>·as·follows,·the·contents·of·the·first·line | 167 | <code·class="inline">escript</code>.</p><p>However,·if·you·invoke·the·<code·class="inline">escript</code>·as·follows,·the·contents·of·the·first·line |
| 168 | do·not·matter,·but·it·cannot·contain·Erlang·code·as·it·will·be·ignored:</p><pre><code·class="text">$·escript·factorial·5</code></pre><p>The·second·line·in·the·example·contains·an·optional·directive·to·the·<code·class="inline">Emacs</code> | 168 | do·not·matter,·but·it·cannot·contain·Erlang·code·as·it·will·be·ignored:</p><pre><code·class="text">$·escript·factorial·5</code></pre><p>The·second·line·in·the·example·contains·an·optional·directive·to·the·<code·class="inline">Emacs</code> |
| 169 | editor,·which·causes·it·to·enter·the·major·mode·for·editing·Erlang·source·files. | 169 | editor,·which·causes·it·to·enter·the·major·mode·for·editing·Erlang·source·files. |
| 170 | If·the·directive·is·present,·it·must·be·located·on·the·second·line.</p><p>If·a·comment·selecting·the·<a·href="../../../lib/stdlib-7.0/doc/html/epp.html#encoding">encoding</a>·exists,·it·can·be | 170 | If·the·directive·is·present,·it·must·be·located·on·the·second·line.</p><p>If·a·comment·selecting·the·<a·href="../../../lib/stdlib-7.0/doc/html/epp.html#encoding">encoding</a>·exists,·it·can·be |
| 171 | located·on·the·second·line.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>The·encoding·specified·by·the·above·mentioned·comment·applies·to·the·script | 171 | located·on·the·second·line.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>The·encoding·specified·by·the·above·mentioned·comment·applies·to·the·script |
| 172 | itself.·The·encoding·of·the·I/O-server,·however,·must·be·set·explicitly·as | 172 | itself.·The·encoding·of·the·I/O-server,·however,·must·be·set·explicitly·as |
| 173 | follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">io</span><span·class="p">:</span><span·class="nf">setopts</span><span·class="p"·data-group-id=" | 173 | follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">io</span><span·class="p">:</span><span·class="nf">setopts</span><span·class="p"·data-group-id="7452855792-1">(</span><span·class="p"·data-group-id="7452855792-2">[</span><span·class="p"·data-group-id="7452855792-3">{</span><span·class="ss">encoding</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">latin1</span><span·class="p"·da[·...·truncated·by·diffoscope;·len:·129,·SHA:·e26cb3781b7450fb09b94f23c8ef9b94e975c3901574a8de95491b4350825ce3·...·]-1">)</span></code></pre><p>The·default·encoding·of·the·I/O-server·for |
| 174 | <a·href="../../../lib/stdlib-7.0/doc/html/io.html#t:standard_io/0"><code·class="inline">standard_io</code></a>·is·<code·class="inline">unicode</code>·if·its·supported.·(see | 174 | <a·href="../../../lib/stdlib-7.0/doc/html/io.html#t:standard_io/0"><code·class="inline">standard_io</code></a>·is·<code·class="inline">unicode</code>·if·its·supported.·(see |
| 175 | section | 175 | section |
| 176 | <a·href="../../../lib/stdlib-7.0/doc/html/unicode_usage.html#unicode_options_summary">Summary·of·Options</a>)·in | 176 | <a·href="../../../lib/stdlib-7.0/doc/html/unicode_usage.html#unicode_options_summary">Summary·of·Options</a>)·in |
| 177 | the·STDLIB·User's·Guide.</p></section><p>On·the·third·line·(or·second·line·depending·on·the·presence·of·the·Emacs | 177 | the·STDLIB·User's·Guide.</p></section><p>On·the·third·line·(or·second·line·depending·on·the·presence·of·the·Emacs |
| 178 | directive),·arguments·can·be·specified·to·the·emulator,·for·example:</p><pre><code·class="text">%%!·-sname·factorial·-mnesia·debug·verbose</code></pre><p>Such·an·argument·line·must·start·with·<code·class="inline">%%!</code>·and·the·remaining·line·is | 178 | directive),·arguments·can·be·specified·to·the·emulator,·for·example:</p><pre><code·class="text">%%!·-sname·factorial·-mnesia·debug·verbose</code></pre><p>Such·an·argument·line·must·start·with·<code·class="inline">%%!</code>·and·the·remaining·line·is |
| 179 | interpreted·as·arguments·to·the·emulator.</p><p>If·you·know·the·location·of·the·<code·class="inline">escript</code>·executable,·the·first·line·can | 179 | interpreted·as·arguments·to·the·emulator.</p><p>If·you·know·the·location·of·the·<code·class="inline">escript</code>·executable,·the·first·line·can |
| 180 | directly·give·the·path·to·<code·class="inline">escript</code>,·for·example:</p><pre><code·class="text">#!/usr/local/bin/escript</code></pre><p>As·any·other·type·of·scripts,·Erlang·scripts·do·not·work·on·Unix·platforms·if | 180 | directly·give·the·path·to·<code·class="inline">escript</code>,·for·example:</p><pre><code·class="text">#!/usr/local/bin/escript</code></pre><p>As·any·other·type·of·scripts,·Erlang·scripts·do·not·work·on·Unix·platforms·if |
| Offset 188, 23 lines modified | Offset 188, 23 lines modified | ||
| 188 | arguments·specified·to·the·script·(not·changed·or·interpreted·in·any·way).</p><p>If·the·<code·class="inline">main/1</code>·function·in·the·script·returns·successfully,·the·exit·status·for | 188 | arguments·specified·to·the·script·(not·changed·or·interpreted·in·any·way).</p><p>If·the·<code·class="inline">main/1</code>·function·in·the·script·returns·successfully,·the·exit·status·for |
| 189 | the·script·is·<code·class="inline">0</code>.·If·an·exception·is·generated·during·execution,·a·short | 189 | the·script·is·<code·class="inline">0</code>.·If·an·exception·is·generated·during·execution,·a·short |
| 190 | message·is·printed·and·the·script·terminates·with·exit·status·<code·class="inline">127</code>.</p><p>To·return·your·own·non-zero·exit·code,·call·<a·href="erlang.html#halt/1"><code·class="inline">halt(ExitCode)</code></a>,·for | 190 | message·is·printed·and·the·script·terminates·with·exit·status·<code·class="inline">127</code>.</p><p>To·return·your·own·non-zero·exit·code,·call·<a·href="erlang.html#halt/1"><code·class="inline">halt(ExitCode)</code></a>,·for |
| 191 | example:</p><pre><code·class="text">halt(1).</code></pre><p>To·retrieve·the·pathname·of·the·script,·call·<a·href="../../../lib/stdlib-7.0/doc/html/escript.html#script_name/0"><code·class="inline">escript:script_name/0</code></a>·from·your | 191 | example:</p><pre><code·class="text">halt(1).</code></pre><p>To·retrieve·the·pathname·of·the·script,·call·<a·href="../../../lib/stdlib-7.0/doc/html/escript.html#script_name/0"><code·class="inline">escript:script_name/0</code></a>·from·your |
| 192 | script·(the·pathname·is·usually,·but·not·always,·absolute).</p><p>If·the·file·contains·source·code·(as·in·the·example·above),·it·is·processed·by | 192 | script·(the·pathname·is·usually,·but·not·always,·absolute).</p><p>If·the·file·contains·source·code·(as·in·the·example·above),·it·is·processed·by |
| 193 | the·<a·href="../../../lib/stdlib-7.0/doc/html/epp.html"><code·class="inline">epp</code></a>·preprocessor.·This·means·that·you,·for·example,·can·use·predefined | 193 | the·<a·href="../../../lib/stdlib-7.0/doc/html/epp.html"><code·class="inline">epp</code></a>·preprocessor.·This·means·that·you,·for·example,·can·use·predefined |
| 194 | macros·(such·as·<code·class="inline">?MODULE</code>)·and·include·directives·like·the·<code·class="inline">-include_lib</code> | 194 | macros·(such·as·<code·class="inline">?MODULE</code>)·and·include·directives·like·the·<code·class="inline">-include_lib</code> |
| 195 | directive.·For·example,·use</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id=" | 195 | directive.·For·example,·use</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id="8126732184-1">(</span><span·class="s">"kernel/include/file.hrl"</span><span·class="p"·data-group-id="8126732184-1">)</span><span·class="p">.</span></code></pre><p>to·include·the·record·definitions·for·the·records·used·by·function |
| 196 | <a·href="../../../lib/kernel-10.3/doc/html/file.html#read_link_info/1"><code·class="inline">file:read_link_info/1</code></a>.·You·can·also·select·encoding·by·including·an·encoding | 196 | <a·href="../../../lib/kernel-10.3/doc/html/file.html#read_link_info/1"><code·class="inline">file:read_link_info/1</code></a>.·You·can·also·select·encoding·by·including·an·encoding |
| 197 | comment·here,·but·if·a·valid·encoding·comment·exists·on·the·second·line,·it | 197 | comment·here,·but·if·a·valid·encoding·comment·exists·on·the·second·line,·it |
| 198 | takes·precedence.</p><p>The·script·is·checked·for·syntactic·and·semantic·correctness·before·it·is·run. | 198 | takes·precedence.</p><p>The·script·is·checked·for·syntactic·and·semantic·correctness·before·it·is·run. |
| 199 | If·there·are·warnings·(such·as·unused·variables),·they·are·printed·and·the | 199 | If·there·are·warnings·(such·as·unused·variables),·they·are·printed·and·the |
| 200 | script·will·still·be·run.·If·there·are·errors,·they·are·printed·and·the·script | 200 | script·will·still·be·run.·If·there·are·errors,·they·are·printed·and·the·script |
| 201 | will·not·be·run·and·its·exit·status·is·<code·class="inline">127</code>.</p><p>Both·the·module·declaration·and·the·export·declaration·of·the·<code·class="inline">main/1</code>·function | 201 | will·not·be·run·and·its·exit·status·is·<code·class="inline">127</code>.</p><p>Both·the·module·declaration·and·the·export·declaration·of·the·<code·class="inline">main/1</code>·function |
| 202 | are·optional.</p><p>By·default,·the·script·will·be·compiled·by·the·Erlang·compiler.</p><p>It·is·possible·to·force·it·to·be·interpreted·by·including·the·following·line | 202 | are·optional.</p><p>By·default,·the·script·will·be·compiled·by·the·Erlang·compiler.</p><p>It·is·possible·to·force·it·to·be·interpreted·by·including·the·following·line |
| 203 | somewhere·in·the·script·file:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">mode</span><span·class="p"·data-group-id=" | 203 | somewhere·in·the·script·file:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">mode</span><span·class="p"·data-group-id="6657648862-1">(</span><span·class="ss">interpret</span><span·class="p"·data-group-id="6657648862-1">)</span><span·class="p">.</span></code></pre><p>Execution·of·interpreted·code·is·slower·than·compiled·code,·and·some·language |
| 204 | constructs·will·not·work,·but·there·is·no·requirement·for·the·Erlang·compiler | 204 | constructs·will·not·work,·but·there·is·no·requirement·for·the·Erlang·compiler |
| 205 | application·to·be·available.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Change</h4><p>Before·Erlang/OTP·27·the·script·would·be·interpreted·by·default.</p></section><h2·id="precompiled-escripts"·class="section-heading"> | 205 | application·to·be·available.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Change</h4><p>Before·Erlang/OTP·27·the·script·would·be·interpreted·by·default.</p></section><h2·id="precompiled-escripts"·class="section-heading"> |
| 206 | ··<a·href="#precompiled-escripts"·class="hover-link"> | 206 | ··<a·href="#precompiled-escripts"·class="hover-link"> |
| 207 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 207 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 208 | ··</a> | 208 | ··</a> |
| 209 | ··<span·class="text">Precompiled·escripts</span> | 209 | ··<span·class="text">Precompiled·escripts</span> |
| 210 | </h2> | 210 | </h2> |
| Offset 309, 15 lines modified | Offset 309, 15 lines modified | ||
| 309 | ······<p·class="built-using"> | 309 | ······<p·class="built-using"> |
| 310 | ········Built·using | 310 | ········Built·using |
| 311 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 311 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 312 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 312 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 313 | ······</p> | 313 | ······</p> |
| 314 | <p>Copyright·©·1996-202 | 314 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 315 | ····</footer> | 315 | ····</footer> |
| 316 | ··</div> | 316 | ··</div> |
| 317 | </main> | 317 | </main> |
| 318 | </div> | 318 | </div> |
| 319 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 319 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 320 | ··<script> | 320 | ··<script> |
| 321 | ··let·initialized·=·false; | 321 | ··let·initialized·=·false; |
| Offset 133, 33 lines modified | Offset 133, 33 lines modified | ||
| 133 | </h2> | 133 | </h2> |
| 134 | <p>Each·Erlang·process·has·its·own·stack·and·heap·which·are·allocated·in·the·same·memory·block·and·grow·towards·each·other.·When·the·stack·and·the·heap·<a·href="https://github.com/erlang/otp/blob/OTP-18.0/erts/emulator/beam/beam_emu.c#L387">meet</a>,·the·garbage·collector·is·triggered·and·memory·is·reclaimed.·If·not·enough·memory·was·reclaimed,·the·heap·will·grow.</p><h3·id="creating-data"·class="section-heading"> | 134 | <p>Each·Erlang·process·has·its·own·stack·and·heap·which·are·allocated·in·the·same·memory·block·and·grow·towards·each·other.·When·the·stack·and·the·heap·<a·href="https://github.com/erlang/otp/blob/OTP-18.0/erts/emulator/beam/beam_emu.c#L387">meet</a>,·the·garbage·collector·is·triggered·and·memory·is·reclaimed.·If·not·enough·memory·was·reclaimed,·the·heap·will·grow.</p><h3·id="creating-data"·class="section-heading"> |
| 135 | ··<a·href="#creating-data"·class="hover-link"> | 135 | ··<a·href="#creating-data"·class="hover-link"> |
| 136 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 136 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 137 | ··</a> | 137 | ··</a> |
| 138 | ··<span·class="text">Creating·Data</span> | 138 | ··<span·class="text">Creating·Data</span> |
| 139 | </h3> | 139 | </h3> |
| 140 | <p>Terms·are·created·on·the·heap·by·evaluating·expressions.·There·are·two·major·types·of·terms:·<a·href="https://github.com/erlang/otp/blob/OTP-18.0/erts/emulator/beam/erl_term.h#L88-L97">immediate·terms</a>·which·require·no·heap·space·(small·integers,·atoms,·pids,·port·ids·etc)·and·cons·or·<a·href="https://github.com/erlang/otp/blob/OTP-18.0/erts/emulator/beam/erl_term.h#L106-L120">boxed·terms</a>·(tuple,·big·num,·binaries·etc)·that·do·require·heap·space.·Immediate·terms·do·not·need·any·heap·space·because·they·are·embedded·into·the·containing·structure.</p><p>Let's·look·at·an·example·that·returns·a·tuple·with·the·newly·created·data.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">data</span><span·class="p"·data-group-id=" | 140 | <p>Terms·are·created·on·the·heap·by·evaluating·expressions.·There·are·two·major·types·of·terms:·<a·href="https://github.com/erlang/otp/blob/OTP-18.0/erts/emulator/beam/erl_term.h#L88-L97">immediate·terms</a>·which·require·no·heap·space·(small·integers,·atoms,·pids,·port·ids·etc)·and·cons·or·<a·href="https://github.com/erlang/otp/blob/OTP-18.0/erts/emulator/beam/erl_term.h#L106-L120">boxed·terms</a>·(tuple,·big·num,·binaries·etc)·that·do·require·heap·space.·Immediate·terms·do·not·need·any·heap·space·because·they·are·embedded·into·the·containing·structure.</p><p>Let's·look·at·an·example·that·returns·a·tuple·with·the·newly·created·data.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">data</span><span·class="p"·data-group-id="5869405917-1">(</span><span·class="n">Foo</span><span·class="p"·data-group-id="5869405917-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 141 | ···</span><span·class="n">Cons</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 141 | ···</span><span·class="n">Cons</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="5869405917-2">[</span><span·class="mi">42</span><span·class="p">|</span><span·class="n">Foo</span><span·class="p"·data-group-id="5869405917-2">]</span><span·class="p">,</span><span·class="w"> |
| 142 | ···</span><span·class="n">Literal</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 142 | ···</span><span·class="n">Literal</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="5869405917-3">{</span><span·class="ss">text</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"hello·world!"</span><span·class="p"·data-group-id="5869405917-3">}</span><span·class="p">,</span><span·class="w"> |
| 143 | ···</span><span·class="p"·data-group-id=" | 143 | ···</span><span·class="p"·data-group-id="5869405917-4">{</span><span·class="ss">tag</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Cons</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Literal</span><span·class="p"·data-group-id="5869405917-4">}</span><span·class="p">.</span></code></pre><p>In·this·example·we·first·create·a·new·cons·cell·with·an·integer·and·a·tuple·with·some·text.·Then·a·tuple·of·size·three·wrapping·the·other·values·with·an·atom·tag·is·created·and·returned.</p><p>On·the·heap·tuples·require·a·word·size·for·each·of·its·elements·as·well·as·for·the·header.·Cons·cells·always·require·two·words.·Adding·these·things·together,·we·get·seven·words·for·the·tuples·and·26·words·for·the·cons·cells.·The·string·<code·class="inline">"hello·world!"</code>·is·a·list·of·cons·cells·and·thus·requires·24·words.·The·atom·<code·class="inline">tag</code>·and·the·integer·<code·class="inline">42</code>·do·not·require·any·additional·heap·memory·since·it·is·an·<em>immediate</em>.·Adding·all·the·terms·together,·the·heap·space·required·in·this·example·should·be·33·words.</p><p>Compiling·this·code·to·beam·assembly·(<code·class="inline">erlc·-S</code>)·shows·exactly·what·is·happening.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> |
| 144 | </span><span·class="p"·data-group-id=" | 144 | </span><span·class="p"·data-group-id="5673497665-1">{</span><span·class="ss">test_heap</span><span·class="p">,</span><span·class="mi">6</span><span·class="p">,</span><span·class="mi">1</span><span·class="p"·data-group-id="5673497665-1">}</span><span·class="p">.</span><span·class="w"> |
| 145 | </span><span·class="p"·data-group-id=" | 145 | </span><span·class="p"·data-group-id="5673497665-2">{</span><span·class="ss">put_list</span><span·class="p">,</span><span·class="p"·data-group-id="5673497665-3">{</span><span·class="ss">integer</span><span·class="p">,</span><span·class="mi">42</span><span·class="p"·data-group-id="5673497665-3"[·...·truncated·by·diffoscope;·len:·458,·SHA:·bc25818efea6e319eae9a62ade8ef02a408ef75a6032b8dbf69d4d6224f122b8·...·]-2">}</span><span·class="p">.</span><span·class="w"> |
| 146 | </span><span·class="p"·data-group-id=" | 146 | </span><span·class="p"·data-group-id="5673497665-6">{</span><span·class="ss">put_tuple</span><span·class="p">,</span><span·class="mi">3</span><span·class="p">,</span><span·class="p"·data-group-id="5673497665-7">{</span><span·class="ss">x</span><span·class="p">,</span><span·class="mi">0</span><[·...·truncated·by·diffoscope;·len:·93,·SHA:·60598222328dc49fc30a1c0901dda92ae5c8bab4abda77bd227e01c56753c63e·...·]-6">}</span><span·class="p">.</span><span·class="w"> |
| 147 | </span><span·class="p"·data-group-id=" | 147 | </span><span·class="p"·data-group-id="5673497665-8">{</span><span·class="nb">put</span><span·class="p">,</span><span·class="p"·data-group-id="5673497665-9">{</span><span·class="ss">atom</span><span·class="p">,</span><span·class="ss">tag</span><span·class="p"·data-group-id="5673497665-9">}</spa[·...·truncated·by·diffoscope;·len:·43,·SHA:·b9089b7e0cba6d948e1a5fd13ca375313b3aab619b2ccf97b863617339fe2caf·...·]-8">}</span><span·class="p">.</span><span·class="w"> |
| 148 | </span><span·class="p"·data-group-id=" | 148 | </span><span·class="p"·data-group-id="5673497665-10">{</span><span·class="nb">put</span><span·class="p">,</span><span·class="p"·data-group-id="5673497665-11">{</span><span·class="ss">x</span><span·class="p">,</span><span·class="mi">1</span><span·class="p"·data-group-id="5673497665-11">}</span>[·...·truncated·by·diffoscope;·len:·41,·SHA:·47c886b1a7ed0e677f37e38baf63d796ab83f127881821943d79ee096d4bc072·...·]-10">}</span><span·class="p">.</span><span·class="w"> |
| 149 | </span><span·class="p"·data-group-id=" | 149 | </span><span·class="p"·data-group-id="5673497665-12">{</span><span·class="nb">put</span><span·class="p">,</span><span·class="p"·data-group-id="5673497665-13">{</span><span·class="ss">literal</span><span·class="p">,</span><span·class="p"·data-group-id="5673497665-14">{</span><span·class="ss">te[·...·truncated·by·diffoscope;·len:·229,·SHA:·54fb61ff698b343bfd4a6f16fd2f2fbca179b4bc44ebaaaa6701d54c827874cb·...·]-12">}</span><span·class="p">.</span><span·class="w"> |
| 150 | </span><span·class="ss">return</span><span·class="p">.</span></code></pre><p>Looking·at·the·assembler·code·we·can·see·three·things:·The·heap·requirement·in·this·function·turns·out·to·be·only·six·words,·as·seen·by·the·<code·class="inline">{test_heap,6,1}</code>·instruction.·All·the·allocations·are·combined·to·a·single·instruction.·The·bulk·of·the·data·<code·class="inline">{text,·"hello·world!"}</code>·is·a·<em>literal</em>.·Literals,·sometimes·referred·to·as·constants,·are·not·allocated·in·the·function·since·they·are·a·part·of·the·module·and·allocated·at·load·time.</p><p>If·there·is·not·enough·space·available·on·the·heap·to·satisfy·the·<code·class="inline">test_heap</code>·instructions·request·for·memory,·then·a·garbage·collection·is·initiated.·It·may·happen·immediately·in·the·<code·class="inline">test_heap</code>·instruction,·or·it·can·be·delayed·until·a·later·time·depending·on·what·state·the·process·is·in.·If·the·garbage·collection·is·delayed,·any·memory·needed·will·be·allocated·in·heap·fragments.·Heap·fragments·are·extra·memory·blocks·that·are·a·part·of·the·young·heap,·but·are·not·allocated·in·the·contiguous·area·where·terms·normally·reside.·See·<a·href="#the-young-heap">The·young·heap</a>·for·more·details.</p><h3·id="the-collector"·class="section-heading"> | 150 | </span><span·class="ss">return</span><span·class="p">.</span></code></pre><p>Looking·at·the·assembler·code·we·can·see·three·things:·The·heap·requirement·in·this·function·turns·out·to·be·only·six·words,·as·seen·by·the·<code·class="inline">{test_heap,6,1}</code>·instruction.·All·the·allocations·are·combined·to·a·single·instruction.·The·bulk·of·the·data·<code·class="inline">{text,·"hello·world!"}</code>·is·a·<em>literal</em>.·Literals,·sometimes·referred·to·as·constants,·are·not·allocated·in·the·function·since·they·are·a·part·of·the·module·and·allocated·at·load·time.</p><p>If·there·is·not·enough·space·available·on·the·heap·to·satisfy·the·<code·class="inline">test_heap</code>·instructions·request·for·memory,·then·a·garbage·collection·is·initiated.·It·may·happen·immediately·in·the·<code·class="inline">test_heap</code>·instruction,·or·it·can·be·delayed·until·a·later·time·depending·on·what·state·the·process·is·in.·If·the·garbage·collection·is·delayed,·any·memory·needed·will·be·allocated·in·heap·fragments.·Heap·fragments·are·extra·memory·blocks·that·are·a·part·of·the·young·heap,·but·are·not·allocated·in·the·contiguous·area·where·terms·normally·reside.·See·<a·href="#the-young-heap">The·young·heap</a>·for·more·details.</p><h3·id="the-collector"·class="section-heading"> |
| 151 | ··<a·href="#the-collector"·class="hover-link"> | 151 | ··<a·href="#the-collector"·class="hover-link"> |
| 152 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 152 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 153 | ··</a> | 153 | ··</a> |
| 154 | ··<span·class="text">The·collector</span> | 154 | ··<span·class="text">The·collector</span> |
| 155 | </h3> | 155 | </h3> |
| 156 | <p>Erlang·has·a·copying·semi-space·garbage·collector.·This·means·that·when·doing·a·garbage·collection,·the·terms·are·copied·from·one·distinct·area,·called·the·<em>from·space</em>,·to·a·new·clean·area,·called·the·<em>to·space</em>.·The·collector·starts·by·<a·href="https://github.com/erlang/otp/blob/OTP-18.0/erts/emulator/beam/erl_gc.c#L1980">scanning·the·root-set</a>·(stack,·registers,·etc).</p><p><img·src="assets/gc-start.png"·alt="Garbage·collection:·initial·values"/></p><p>It·follows·all·the·pointers·from·the·root-set·to·the·heap·and·copies·each·term·word·by·word·to·the·<em>to·space</em>.</p><p>After·the·header·word·has·been·copied·a·<a·href="https://github.com/erlang/otp/blob/OTP-18.0/erts/emulator/beam/erl_gc.h#L45-L46"><em>move·marker</em></a>·is·destructively·placed·in·it·pointing·to·the·term·in·the·<em>to·space</em>.·Any·other·term·that·points·to·the·already·moved·term·will·<a·href="https://github.com/erlang/otp/blob/OTP-18.0/erts/emulator/beam/erl_gc.c#L1125">see·this·move·marker</a>·and·copy·the·referring·pointer·instead.·For·example,·if·the·have·the·following·Erlang·code:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">foo</span><span·class="p"·data-group-id=" | 156 | <p>Erlang·has·a·copying·semi-space·garbage·collector.·This·means·that·when·doing·a·garbage·collection,·the·terms·are·copied·from·one·distinct·area,·called·the·<em>from·space</em>,·to·a·new·clean·area,·called·the·<em>to·space</em>.·The·collector·starts·by·<a·href="https://github.com/erlang/otp/blob/OTP-18.0/erts/emulator/beam/erl_gc.c#L1980">scanning·the·root-set</a>·(stack,·registers,·etc).</p><p><img·src="assets/gc-start.png"·alt="Garbage·collection:·initial·values"/></p><p>It·follows·all·the·pointers·from·the·root-set·to·the·heap·and·copies·each·term·word·by·word·to·the·<em>to·space</em>.</p><p>After·the·header·word·has·been·copied·a·<a·href="https://github.com/erlang/otp/blob/OTP-18.0/erts/emulator/beam/erl_gc.h#L45-L46"><em>move·marker</em></a>·is·destructively·placed·in·it·pointing·to·the·term·in·the·<em>to·space</em>.·Any·other·term·that·points·to·the·already·moved·term·will·<a·href="https://github.com/erlang/otp/blob/OTP-18.0/erts/emulator/beam/erl_gc.c#L1125">see·this·move·marker</a>·and·copy·the·referring·pointer·instead.·For·example,·if·the·have·the·following·Erlang·code:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">foo</span><span·class="p"·data-group-id="9603245767-1">(</span><span·class="n">Arg</span><span·class="p"·data-group-id="9603245767-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 157 | ····</span><span·class="n">T</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 157 | ····</span><span·class="n">T</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="9603245767-2">{</span><span·class="ss">test</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Arg</span><span·class="p"·data-group-id="9603245767-2">}</span><span·class="p">,</span><span·class="w"> |
| 158 | ····</span><span·class="p"·data-group-id=" | 158 | ····</span><span·class="p"·data-group-id="9603245767-3">{</span><span·class="ss">wrapper</span><span·class="p">,</span><span·class="w">·</span><span·class="n">T</span><span·class="p">,</span><span·class="w">·</span><span·class="n">T</span><span·class="p">,</span><span·class="w">·</span><span·class[·...·truncated·by·diffoscope;·len:·54,·SHA:·913cf45bb72c24e22588064885b5d4362e25b16611887567e8517461a1e10bf2·...·]-3">}</span><span·class="p">.</span></code></pre><p>Only·one·copy·of·T·exists·on·the·heap·and·during·the·garbage·collection·only·the·first·time·T·is·encountered·will·it·be·copied.</p><p><img·src="assets/gc-rootset-scan.png"·alt="Garbage·collection:·root·set·scan"/></p><p>After·<a·href="https://github.com/erlang/otp/blob/OTP-18.0/erts/emulator/beam/erl_gc.c#L1089">all·terms</a>·referenced·by·the·root-set·have·been·copied,·the·collector·scans·the·<em>to·space</em>·and·copies·all·terms·that·these·terms·reference.·When·scanning,·the·collector·steps·through·each·term·on·the·<em>to·space</em>·and·any·term·still·referencing·the·<em>from·space</em>·is·copied·over·to·the·<em>to·space</em>.·Some·terms·contain·non-term·data·(the·payload·of·a·on·heap·binary·for·instance).·When·encountered·by·the·collector,·these·values·are·simply·skipped.</p><p><img·src="assets/gc-heap-scan1.png"·alt="Garbage·collection:·heap·scan"/></p><p>Every·term·object·we·can·reach·is·copied·to·the·<em>to·space</em>·and·stored·on·top·of·the·<em>scan·stop</em>·line,·and·then·the·scan·stop·is·moved·to·the·end·of·the·last·object.</p><p><img·src="assets/gc-heap-stop.png"·alt="Garbage·collection:·heap·scan"/></p><p>When·<em>scan·stop</em>·marker·<a·href="https://github.com/erlang/otp/blob/OTP-18.0/erts/emulator/beam/erl_gc.c#L1103">catches·up</a>·to·the·<em>scan·start</em>·marker,·the·garbage·collection·is·done.·At·this·point·we·can·<a·href="https://github.com/erlang/otp/blob/OTP-18.0/erts/emulator/beam/erl_gc.c#L1206">deallocate</a>·the·entire·<em>from·space</em>·and·therefore·reclaim·the·entire·young·heap.</p><h2·id="generational-garbage-collection"·class="section-heading"> |
| 159 | ··<a·href="#generational-garbage-collection"·class="hover-link"> | 159 | ··<a·href="#generational-garbage-collection"·class="hover-link"> |
| 160 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 160 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 161 | ··</a> | 161 | ··</a> |
| 162 | ··<span·class="text">Generational·Garbage·Collection</span> | 162 | ··<span·class="text">Generational·Garbage·Collection</span> |
| 163 | </h2> | 163 | </h2> |
| 164 | <p>In·addition·to·the·collection·algorithm·described·above,·the·Erlang·garbage·collector·also·provides·generational·garbage·collection.·An·additional·heap,·called·the·old·heap,·is·used·where·the·long·lived·data·is·stored.·The·original·heap·is·called·the·young·heap,·or·sometimes·the·allocation·heap.</p><p>With·this·in·mind·we·can·look·at·the·Erlang's·garbage·collection·again.·During·the·copy·stage·anything·that·should·be·copied·to·the·young·<em>to·space</em>·is·instead·copied·to·the·old·<em>to·space</em>·<em>if</em>·it·is·<a·href="https://github.com/erlang/otp/blob/OTP-18.0/erts/emulator/beam/erl_gc.c#L1127">below·the·<em>high-watermark</em></a>.</p><p><img·src="assets/gc-watermark.png"·alt="Garbage·collection:·heap·scan"/></p><p>The·<a·href="https://github.com/erlang/otp/blob/OTP-18.0/erts/emulator/beam/erl_process.h#L1021"><em>high-watermark</em></a>·is·placed·where·the·previous·garbage·collection·(described·in·<a·href="#overview">Overview</a>)·ended·and·we·have·introduced·a·new·area·called·the·old·heap.·When·doing·the·normal·garbage·collection·pass,·any·term·that·is·located·below·the·high-watermark·is·copied·to·the·old·<em>to·space</em>·instead·of·the·young.</p><p><img·src="assets/gc-watermark-2.png"·alt="Garbage·collection:·heap·scan"/></p><p>In·the·next·garbage·collection,·any·pointers·to·the·old·heap·will·be·ignored·and·not·scanned.·This·way·the·garbage·collector·does·not·have·to·scan·the·long-lived·terms.</p><p>Generational·garbage·collection·aims·to·increase·performance·at·the·expense·of·memory.·This·is·achieved·because·only·the·young,·smaller,·heap·is·considered·in·most·garbage·collections.</p><p>The·generational·hypothesis·predicts·that·most·terms·tend·to·die·young·(see·D.·Ungar·in·<a·href="#references">References</a>),·and·for·an·immutable·language·such·as·Erlang,·young·terms·die·even·faster·than·in·other·languages.·So·for·most·usage·patterns·the·data·in·the·new·heap·will·die·very·soon·after·it·is·allocated.·This·is·good·because·it·limits·the·amount·of·data·copied·to·the·old·heap·and·also·because·the·garbage·collection·algorithm·used·is·proportional·to·the·amount·of·live·data·on·the·heap.</p><p>One·critical·issue·to·note·here·is·that·any·term·on·the·young·heap·can·reference·terms·on·the·old·heap·but·<em>no</em>·term·on·the·old·heap·may·refer·to·a·term·on·the·young·heap.·This·is·due·to·the·nature·of·the·copy·algorithm.·Anything·referenced·by·an·old·heap·term·is·not·included·in·the·reference·tree,·root-set·and·its·followers,·and·hence·is·not·copied.·If·it·was,·the·data·would·be·lost,·fire·and·brimstone·would·rise·to·cover·the·earth.·Fortunately,·this·comes·naturally·for·Erlang·because·the·terms·are·immutable·and·thus·there·can·be·no·pointers·modified·on·the·old·heap·to·point·to·the·young·heap.</p><p>To·reclaim·data·from·the·old·heap,·both·young·and·old·heaps·are·included·during·the·collection·and·copied·to·a·common·<em>to·space</em>.·Both·the·<em>from·space</em>·of·the·young·and·old·heap·are·then·deallocated·and·the·procedure·will·start·over·from·the·beginning.·This·type·of·garbage·collection·is·called·a·full·sweep·and·is·triggered·when·the·size·of·the·area·under·the·high-watermark·is·larger·than·the·size·of·the·free·area·of·the·old·heap.·It·can·also·be·triggered·by·doing·a·manual·call·to·<a·href="http://erlang.org/doc/man/erlang.html#garbage_collect-0">erlang:garbage_collect()</a>,·or·by·running·into·the·young·garbage·collection·limit·set·by·[spawn_opt(fun(),<a·href="http://erlang.org/doc/man/erlang.html#spawn_opt-4">{fullsweep_after,·N}])</a>·where·N·is·the·number·of·young·garbage·collections·to·do·before·forcing·a·garbage·collection·of·both·young·and·old·heap.</p><h2·id="the-young-heap"·class="section-heading"> | 164 | <p>In·addition·to·the·collection·algorithm·described·above,·the·Erlang·garbage·collector·also·provides·generational·garbage·collection.·An·additional·heap,·called·the·old·heap,·is·used·where·the·long·lived·data·is·stored.·The·original·heap·is·called·the·young·heap,·or·sometimes·the·allocation·heap.</p><p>With·this·in·mind·we·can·look·at·the·Erlang's·garbage·collection·again.·During·the·copy·stage·anything·that·should·be·copied·to·the·young·<em>to·space</em>·is·instead·copied·to·the·old·<em>to·space</em>·<em>if</em>·it·is·<a·href="https://github.com/erlang/otp/blob/OTP-18.0/erts/emulator/beam/erl_gc.c#L1127">below·the·<em>high-watermark</em></a>.</p><p><img·src="assets/gc-watermark.png"·alt="Garbage·collection:·heap·scan"/></p><p>The·<a·href="https://github.com/erlang/otp/blob/OTP-18.0/erts/emulator/beam/erl_process.h#L1021"><em>high-watermark</em></a>·is·placed·where·the·previous·garbage·collection·(described·in·<a·href="#overview">Overview</a>)·ended·and·we·have·introduced·a·new·area·called·the·old·heap.·When·doing·the·normal·garbage·collection·pass,·any·term·that·is·located·below·the·high-watermark·is·copied·to·the·old·<em>to·space</em>·instead·of·the·young.</p><p><img·src="assets/gc-watermark-2.png"·alt="Garbage·collection:·heap·scan"/></p><p>In·the·next·garbage·collection,·any·pointers·to·the·old·heap·will·be·ignored·and·not·scanned.·This·way·the·garbage·collector·does·not·have·to·scan·the·long-lived·terms.</p><p>Generational·garbage·collection·aims·to·increase·performance·at·the·expense·of·memory.·This·is·achieved·because·only·the·young,·smaller,·heap·is·considered·in·most·garbage·collections.</p><p>The·generational·hypothesis·predicts·that·most·terms·tend·to·die·young·(see·D.·Ungar·in·<a·href="#references">References</a>),·and·for·an·immutable·language·such·as·Erlang,·young·terms·die·even·faster·than·in·other·languages.·So·for·most·usage·patterns·the·data·in·the·new·heap·will·die·very·soon·after·it·is·allocated.·This·is·good·because·it·limits·the·amount·of·data·copied·to·the·old·heap·and·also·because·the·garbage·collection·algorithm·used·is·proportional·to·the·amount·of·live·data·on·the·heap.</p><p>One·critical·issue·to·note·here·is·that·any·term·on·the·young·heap·can·reference·terms·on·the·old·heap·but·<em>no</em>·term·on·the·old·heap·may·refer·to·a·term·on·the·young·heap.·This·is·due·to·the·nature·of·the·copy·algorithm.·Anything·referenced·by·an·old·heap·term·is·not·included·in·the·reference·tree,·root-set·and·its·followers,·and·hence·is·not·copied.·If·it·was,·the·data·would·be·lost,·fire·and·brimstone·would·rise·to·cover·the·earth.·Fortunately,·this·comes·naturally·for·Erlang·because·the·terms·are·immutable·and·thus·there·can·be·no·pointers·modified·on·the·old·heap·to·point·to·the·young·heap.</p><p>To·reclaim·data·from·the·old·heap,·both·young·and·old·heaps·are·included·during·the·collection·and·copied·to·a·common·<em>to·space</em>.·Both·the·<em>from·space</em>·of·the·young·and·old·heap·are·then·deallocated·and·the·procedure·will·start·over·from·the·beginning.·This·type·of·garbage·collection·is·called·a·full·sweep·and·is·triggered·when·the·size·of·the·area·under·the·high-watermark·is·larger·than·the·size·of·the·free·area·of·the·old·heap.·It·can·also·be·triggered·by·doing·a·manual·call·to·<a·href="http://erlang.org/doc/man/erlang.html#garbage_collect-0">erlang:garbage_collect()</a>,·or·by·running·into·the·young·garbage·collection·limit·set·by·[spawn_opt(fun(),<a·href="http://erlang.org/doc/man/erlang.html#spawn_opt-4">{fullsweep_after,·N}])</a>·where·N·is·the·number·of·young·garbage·collections·to·do·before·forcing·a·garbage·collection·of·both·young·and·old·heap.</p><h2·id="the-young-heap"·class="section-heading"> |
| 165 | ··<a·href="#the-young-heap"·class="hover-link"> | 165 | ··<a·href="#the-young-heap"·class="hover-link"> |
| Offset 175, 19 lines modified | Offset 175, 19 lines modified | ||
| 175 | </h2> | 175 | </h2> |
| 176 | <p>As·mentioned·in·the·Overview·the·size·of·the·heap·<a·href="https://github.com/erlang/otp/blob/OTP-18.0/erts/emulator/beam/erl_gc.c#L247">grows</a>·to·accommodate·more·data.·Heaps·grow·in·two·stages,·first·a·<a·href="https://github.com/erlang/otp/blob/OTP-18.0/erts/emulator/beam/erl_gc.c#L199-L208">variation·of·the·Fibonacci·sequence</a>·is·used·starting·at·233·words.·Then·at·about·1·mega·words·the·heap·only·<a·href="https://github.com/erlang/otp/blob/OTP-18.0/erts/emulator/beam/erl_gc.c#L215-L227">grows·in·20%·increments</a>.</p><p>There·are·two·occasions·when·the·young·heap·grows:</p><ul><li>if·the·total·size·of·the·heap·+·message·and·heap·fragments·exceeds·the·current·heap·size.</li><li>if·after·a·fullsweep,·the·total·amount·of·live·objects·is·greater·than·75%.</li></ul><p>There·are·two·occasions·when·the·young·heap·is·shrunk:</p><ul><li>if·after·a·young·collection,·the·total·amount·of·live·objects·is·less·than·25%·of·the·heap·and·the·young·heap·is·"big"</li><li>if·after·a·fullsweep,·the·total·amount·of·live·objects·is·less·than·25%·of·the·heap.</li></ul><p>The·old·heap·is·always·one·step·ahead·in·the·heap·growth·stages·than·the·young·heap.</p><h2·id="literals"·class="section-heading"> | 176 | <p>As·mentioned·in·the·Overview·the·size·of·the·heap·<a·href="https://github.com/erlang/otp/blob/OTP-18.0/erts/emulator/beam/erl_gc.c#L247">grows</a>·to·accommodate·more·data.·Heaps·grow·in·two·stages,·first·a·<a·href="https://github.com/erlang/otp/blob/OTP-18.0/erts/emulator/beam/erl_gc.c#L199-L208">variation·of·the·Fibonacci·sequence</a>·is·used·starting·at·233·words.·Then·at·about·1·mega·words·the·heap·only·<a·href="https://github.com/erlang/otp/blob/OTP-18.0/erts/emulator/beam/erl_gc.c#L215-L227">grows·in·20%·increments</a>.</p><p>There·are·two·occasions·when·the·young·heap·grows:</p><ul><li>if·the·total·size·of·the·heap·+·message·and·heap·fragments·exceeds·the·current·heap·size.</li><li>if·after·a·fullsweep,·the·total·amount·of·live·objects·is·greater·than·75%.</li></ul><p>There·are·two·occasions·when·the·young·heap·is·shrunk:</p><ul><li>if·after·a·young·collection,·the·total·amount·of·live·objects·is·less·than·25%·of·the·heap·and·the·young·heap·is·"big"</li><li>if·after·a·fullsweep,·the·total·amount·of·live·objects·is·less·than·25%·of·the·heap.</li></ul><p>The·old·heap·is·always·one·step·ahead·in·the·heap·growth·stages·than·the·young·heap.</p><h2·id="literals"·class="section-heading"> |
| 177 | ··<a·href="#literals"·class="hover-link"> | 177 | ··<a·href="#literals"·class="hover-link"> |
| 178 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 178 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 179 | ··</a> | 179 | ··</a> |
| 180 | ··<span·class="text">Literals</span> | 180 | ··<span·class="text">Literals</span> |
| 181 | </h2> | 181 | </h2> |
| 182 | <p>When·garbage·collecting·a·heap·(young·or·old)·all·literals·are·left·in·place·and·not·copied.·To·figure·out·if·a·term·should·be·copied·or·not·when·doing·a·garbage·collection·the·following·pseudo·code·is·used:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">if</span><span·class="w">·</span><span·class="p"·data-group-id=" | 182 | <p>When·garbage·collecting·a·heap·(young·or·old)·all·literals·are·left·in·place·and·not·copied.·To·figure·out·if·a·term·should·be·copied·or·not·when·doing·a·garbage·collection·the·following·pseudo·code·is·used:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">if</span><span·class="w">·</span><span·class="p"·data-group-id="1398992094-1">(</span><span·class="nf">erts_is_literal</span><span·class="p"·data-group-id="1398992094-2">(</span><span·class="ss">ptr</span><span·class="p"·data-group-id="1398992094-2">)</span><span·class="w">·</span><span·class="p">||</span><span·class="[·...·truncated·by·diffoscope;·len:·541,·SHA:·44db10031a5f4bd13f212599a7559fe4a2c4a165156b213d359a753b3402b7f2·...·]-5">{</span><span·class="w"> |
| 183 | ··</span><span·class="o">/</span><span·class="o">*</span><span·class="w">·</span><span·class="ss">literal</span><span·class="w">·</span><span·class="ow">or</span><span·class="w">·</span><span·class="ss">non</span><span·class="w">·</span><span·class="ss">fullsweep</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="ss">do</span><span·class="w">·</span><span·class="ow">not</span><span·class="w">·</span><span·class="ss">copy</span><span·class="w">·</span><span·class="o">*</span><span·class="o">/</span><span·class="w"> | 183 | ··</span><span·class="o">/</span><span·class="o">*</span><span·class="w">·</span><span·class="ss">literal</span><span·class="w">·</span><span·class="ow">or</span><span·class="w">·</span><span·class="ss">non</span><span·class="w">·</span><span·class="ss">fullsweep</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="ss">do</span><span·class="w">·</span><span·class="ow">not</span><span·class="w">·</span><span·class="ss">copy</span><span·class="w">·</span><span·class="o">*</span><span·class="o">/</span><span·class="w"> |
| 184 | </span><span·class="p"·data-group-id=" | 184 | </span><span·class="p"·data-group-id="1398992094-5">}</span><span·class="w">·</span><span·class="k">else</span><span·class="w">·</span><span·class="p"·data-group-id="1398992094-6">{</span><span·class="w"> |
| 185 | ··</span><span·class="nf">copy</span><span·class="p"·data-group-id=" | 185 | ··</span><span·class="nf">copy</span><span·class="p"·data-group-id="1398992094-7">(</span><span·class="ss">ptr</span><span·class="p"·data-group-id="1398992094-7">)</span><span·class="p">;</span><span·class="w"> |
| 186 | </span><span·class="p"·data-group-id=" | 186 | </span><span·class="p"·data-group-id="1398992094-6">}</span></code></pre><p>The·<a·href="https://github.com/erlang/otp/blob/OTP-19.0/erts/emulator/beam/global.h#L1452-L1465"><code·class="inline">erts_is_literal</code></a>·check·works·differently·on·different·architectures·and·operating·systems.</p><p>On·64·bit·systems·that·allow·mapping·of·unreserved·virtual·memory·areas·(most·operating·systems·except·Windows),·an·area·of·size·1·GB·(by·default)·is·mapped·and·then·all·literals·are·placed·within·that·area.·Then·all·that·has·to·be·done·to·determine·if·something·is·a·literal·or·not·is·<a·href="https://github.com/erlang/otp/blob/OTP-19.0/erts/emulator/beam/erl_alloc.h#L322-L324">two·quick·pointer·checks</a>.·This·system·relies·on·the·fact·that·a·memory·page·that·has·not·been·touched·yet·does·not·take·any·actual·space.·So·even·if·1·GB·of·virtual·memory·is·mapped,·only·the·memory·which·is·actually·needed·for·literals·is·allocated·in·ram.·The·size·of·the·literal·area·is·configurable·through·the·+MIscs·erts_alloc·option.</p><p>On·32·bit·systems,·there·is·not·enough·virtual·memory·space·to·allocate·1·GB·for·just·literals,·so·instead·small·256·KB·sized·literal·regions·are·created·on·demand·and·a·card·mark·bit-array·of·the·entire·32·bit·memory·space·is·then·used·to·determine·if·a·term·is·a·literal·or·not.·Since·the·total·memory·space·is·only·32·bits,·the·card·mark·bit-array·is·only·256·words·large.·On·a·64·bit·system·the·same·bit-array·would·have·to·be·1·tera·words·large,·so·this·technique·is·only·viable·on·32·bit·systems.·Doing·<a·href="https://github.com/erlang/otp/blob/OTP-19.0/erts/emulator/beam/erl_alloc.h#L316-L319">lookups·in·the·array</a>·is·a·little·more·expensive·then·just·doing·the·pointer·checks·that·can·be·done·in·64·bit·systems,·but·not·extremely·so.</p><p>On·64·bit·windows,·on·which·erts_alloc·cannot·do·unreserved·virtual·memory·mappings,·a·<a·href="https://github.com/erlang/otp/blob/OTP-19.0/erts/emulator/beam/erl_term.h#L59">special·tag</a>·within·the·Erlang·term·object·is·used·to·determine·if·something·<a·href="https://github.com/erlang/otp/blob/OTP-19.0/erts/emulator/beam/erl_term.h#L248-L252">is·a·literal·or·not</a>.·This·is·very·cheap,·however,·the·tag·is·only·available·on·64·bit·machines,·and·it·is·possible·to·do·a·great·deal·of·other·nice·optimizations·with·this·tag·in·the·future·(like·for·instance·a·more·compact·list·implementation)·so·it·is·not·used·on·operating·systems·where·it·is·not·needed.</p><p>This·behaviour·is·different·from·how·it·worked·prior·to·Erlang/OTP·19.0.·Before·19.0·the·literal·check·was·done·by·checking·if·the·pointer·pointed·to·the·young·or·old·heap·block.·If·it·did·not,·then·it·was·considered·a·literal.·This·lead·to·considerable·overhead·and·strange·memory·usage·scenarios,·so·it·was·removed·in·19.0.</p><h2·id="binary-heap"·class="section-heading"> |
| 187 | ··<a·href="#binary-heap"·class="hover-link"> | 187 | ··<a·href="#binary-heap"·class="hover-link"> |
| 188 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 188 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 189 | ··</a> | 189 | ··</a> |
| 190 | ··<span·class="text">Binary·heap</span> | 190 | ··<span·class="text">Binary·heap</span> |
| 191 | </h2> | 191 | </h2> |
| 192 | <p>The·binary·heap·works·as·a·large·object·space·for·binary·terms·that·are·greater·than·64·bytes·(from·now·on·called·off-heap·binaries).·The·binary·heap·is·<a·href="https://en.wikipedia.org/wiki/Reference_counting">reference·counted</a>·and·a·pointer·to·the·off-heap·binary·is·stored·on·the·process·heap.·To·keep·track·of·when·to·decrement·the·reference·counter·of·the·off-heap·binary,·a·linked·list·(the·MSO·-·mark·and·sweep·object·list)·containing·funs·and·externals·as·well·as·off-heap·binaries·is·woven·through·the·heap.·After·a·garbage·collection·is·done,·the·<a·href="https://github.com/erlang/otp/blob/OTP-18.0/erts/emulator/beam/erl_gc.c#L2299">MSO·list·is·swept</a>·and·any·off-heap·binary·that·does·not·have·a·<a·href="https://github.com/erlang/otp/blob/OTP-18.0/erts/emulator/beam/erl_gc.c#L2325">move·marker</a>·written·into·the·header·words·has·its·reference·<a·href="https://github.com/erlang/otp/blob/OTP-18.0/erts/emulator/beam/erl_gc.c#L2344-L2367">decremented·and·is·potentially·freed</a>.</p><p>All·items·in·the·MSO·list·are·ordered·by·the·time·they·were·added·to·the·process·heap,·so·when·doing·a·minor·garbage·collection,·the·MSO·sweeper·only·has·to·sweep·until·it·<a·href="https://github.com/erlang/otp/blob/OTP-18.0/erts/emulator/beam/erl_gc.c#L2369">encounters·an·off-heap·binary·that·is·on·the·old·heap</a>.</p><h3·id="virtual-binary-heap"·class="section-heading"> | 192 | <p>The·binary·heap·works·as·a·large·object·space·for·binary·terms·that·are·greater·than·64·bytes·(from·now·on·called·off-heap·binaries).·The·binary·heap·is·<a·href="https://en.wikipedia.org/wiki/Reference_counting">reference·counted</a>·and·a·pointer·to·the·off-heap·binary·is·stored·on·the·process·heap.·To·keep·track·of·when·to·decrement·the·reference·counter·of·the·off-heap·binary,·a·linked·list·(the·MSO·-·mark·and·sweep·object·list)·containing·funs·and·externals·as·well·as·off-heap·binaries·is·woven·through·the·heap.·After·a·garbage·collection·is·done,·the·<a·href="https://github.com/erlang/otp/blob/OTP-18.0/erts/emulator/beam/erl_gc.c#L2299">MSO·list·is·swept</a>·and·any·off-heap·binary·that·does·not·have·a·<a·href="https://github.com/erlang/otp/blob/OTP-18.0/erts/emulator/beam/erl_gc.c#L2325">move·marker</a>·written·into·the·header·words·has·its·reference·<a·href="https://github.com/erlang/otp/blob/OTP-18.0/erts/emulator/beam/erl_gc.c#L2344-L2367">decremented·and·is·potentially·freed</a>.</p><p>All·items·in·the·MSO·list·are·ordered·by·the·time·they·were·added·to·the·process·heap,·so·when·doing·a·minor·garbage·collection,·the·MSO·sweeper·only·has·to·sweep·until·it·<a·href="https://github.com/erlang/otp/blob/OTP-18.0/erts/emulator/beam/erl_gc.c#L2369">encounters·an·off-heap·binary·that·is·on·the·old·heap</a>.</p><h3·id="virtual-binary-heap"·class="section-heading"> |
| 193 | ··<a·href="#virtual-binary-heap"·class="hover-link"> | 193 | ··<a·href="#virtual-binary-heap"·class="hover-link"> |
| Offset 262, 15 lines modified | Offset 262, 15 lines modified | ||
| 262 | ······<p·class="built-using"> | 262 | ······<p·class="built-using"> |
| 263 | ········Built·using | 263 | ········Built·using |
| 264 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 264 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 265 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 265 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 266 | ······</p> | 266 | ······</p> |
| 267 | <p>Copyright·©·1996-202 | 267 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 268 | ····</footer> | 268 | ····</footer> |
| 269 | ··</div> | 269 | ··</div> |
| 270 | </main> | 270 | </main> |
| 271 | </div> | 271 | </div> |
| 272 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 272 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 273 | ··<script> | 273 | ··<script> |
| 274 | ··let·initialized·=·false; | 274 | ··let·initialized·=·false; |
| Offset 161, 108 lines modified | Offset 161, 108 lines modified | ||
| 161 | configuration·files·(or·system·registry):</p><ul><li>Hostnames·and·host·addresses</li><li>Domain·name</li><li>Nameservers</li><li>Search·domains</li><li>Lookup·method</li></ul><p>This·data·can·also·be·specified·explicitly·in·the·user·configuration·file.·This | 161 | configuration·files·(or·system·registry):</p><ul><li>Hostnames·and·host·addresses</li><li>Domain·name</li><li>Nameservers</li><li>Search·domains</li><li>Lookup·method</li></ul><p>This·data·can·also·be·specified·explicitly·in·the·user·configuration·file.·This |
| 162 | file·is·to·contain·lines·of·configuration·parameters·(each·terminated·with·a | 162 | file·is·to·contain·lines·of·configuration·parameters·(each·terminated·with·a |
| 163 | full·stop).·Some·parameters·add·data·to·the·configuration·(such·as·host·and | 163 | full·stop).·Some·parameters·add·data·to·the·configuration·(such·as·host·and |
| 164 | nameserver),·others·overwrite·any·previous·settings·(such·as·domain·and·lookup). | 164 | nameserver),·others·overwrite·any·previous·settings·(such·as·domain·and·lookup). |
| 165 | The·user·configuration·file·is·always·examined·last·in·the·configuration | 165 | The·user·configuration·file·is·always·examined·last·in·the·configuration |
| 166 | process,·making·it·possible·for·the·user·to·override·any·default·values·or | 166 | process,·making·it·possible·for·the·user·to·override·any·default·values·or |
| 167 | previously·made·settings.·Call·<code·class="inline">inet:get_rc()</code>·to·view·the·state·of·the·<code·class="inline">inet</code> | 167 | previously·made·settings.·Call·<code·class="inline">inet:get_rc()</code>·to·view·the·state·of·the·<code·class="inline">inet</code> |
| 168 | configuration·database.</p><p>The·valid·configuration·parameters·are·as·follows:</p><ul><li><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 168 | configuration·database.</p><p>The·valid·configuration·parameters·are·as·follows:</p><ul><li><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="6776198401-1">{</span><span·class="ss">file</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Format</span><span·class="p">,</span><span·class="w">·</span><span·class="n">File</span><span·class="p"·data-group-id="6776198401-1">}</span><span·class="p">.</span><span·class="w"> |
| 169 | ··</span><span·class="n">Format</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">atom</span><span·class="p"·data-group-id=" | 169 | ··</span><span·class="n">Format</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">atom</span><span·class="p"·data-group-id="6776198401-2">(</span><span·class="p"·data-group-id="6776198401-2">)</span><span·class="w"> |
| 170 | ··</span><span·class="n">File</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">string</span><span·class="p"·data-group-id=" | 170 | ··</span><span·class="n">File</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">string</span><span·class="p"·data-group-id="6776198401-3">(</span><span·class="p"·data-group-id="6776198401-3">)</span></code></pre><p>Specify·a·system·file·that·Erlang·is·to·read·configuration·data·from.·<code·class="inline">Format</code> |
| 171 | tells·the·parser·how·the·file·is·to·be·interpreted:</p><ul><li><code·class="inline">resolv</code>·(Unix·resolv.conf)</li><li><code·class="inline">host_conf_freebsd</code>·(FreeBSD·host.conf)</li><li><code·class="inline">host_conf_bsdos</code>·(BSDOS·host.conf)</li><li><code·class="inline">host_conf_linux</code>·(Linux·host.conf)</li><li><code·class="inline">nsswitch_conf</code>·(Unix·nsswitch.conf)</li><li><code·class="inline">hosts</code>·(Unix·hosts)</li></ul><p><code·class="inline">File</code>·is·to·specify·the·filename·with·full·path.</p></li><li><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 171 | tells·the·parser·how·the·file·is·to·be·interpreted:</p><ul><li><code·class="inline">resolv</code>·(Unix·resolv.conf)</li><li><code·class="inline">host_conf_freebsd</code>·(FreeBSD·host.conf)</li><li><code·class="inline">host_conf_bsdos</code>·(BSDOS·host.conf)</li><li><code·class="inline">host_conf_linux</code>·(Linux·host.conf)</li><li><code·class="inline">nsswitch_conf</code>·(Unix·nsswitch.conf)</li><li><code·class="inline">hosts</code>·(Unix·hosts)</li></ul><p><code·class="inline">File</code>·is·to·specify·the·filename·with·full·path.</p></li><li><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="1265700073-1">{</span><span·class="ss">resolv_conf</span><span·class="p">,</span><span·class="w">·</span><span·class="n">File</span><span·class="p"·data-group-id="1265700073-1">}</span><span·class="p">.</span><span·class="w"> |
| 172 | ··</span><span·class="n">File</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">string</span><span·class="p"·data-group-id=" | 172 | ··</span><span·class="n">File</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">string</span><span·class="p"·data-group-id="1265700073-2">(</span><span·class="p"·data-group-id="1265700073-2">)</span></code></pre><p>Specify·a·system·file·that·Erlang·is·to·read·resolver·configuration·from·for |
| 173 | the·internal·DNS·client·<a·href="../../../lib/kernel-10.3/doc/html/inet_res.html"><code·class="inline">inet_res</code></a>,·and·monitor·for·changes,·even·if·it·does | 173 | the·internal·DNS·client·<a·href="../../../lib/kernel-10.3/doc/html/inet_res.html"><code·class="inline">inet_res</code></a>,·and·monitor·for·changes,·even·if·it·does |
| 174 | not·exist.·The·path·must·be·absolute.</p><p>This·can·override·the·configuration·parameters·<code·class="inline">nameserver</code>·and·<code·class="inline">search</code> | 174 | not·exist.·The·path·must·be·absolute.</p><p>This·can·override·the·configuration·parameters·<code·class="inline">nameserver</code>·and·<code·class="inline">search</code> |
| 175 | depending·on·the·contents·of·the·specified·file.·They·can·also·change·any·time | 175 | depending·on·the·contents·of·the·specified·file.·They·can·also·change·any·time |
| 176 | in·the·future·reflecting·the·file·contents.</p><p>If·the·file·is·specified·as·an·empty·string·<code·class="inline">""</code>,·no·file·is·read·or·monitored | 176 | in·the·future·reflecting·the·file·contents.</p><p>If·the·file·is·specified·as·an·empty·string·<code·class="inline">""</code>,·no·file·is·read·or·monitored |
| 177 | in·the·future.·This·emulates·the·old·behavior·of·not·configuring·the·DNS | 177 | in·the·future.·This·emulates·the·old·behavior·of·not·configuring·the·DNS |
| 178 | client·when·the·node·is·started·in·short·name·distributed·mode.</p><p>If·this·parameter·is·not·specified,·it·defaults·to·<code·class="inline">/etc/resolv.conf</code>·unless | 178 | client·when·the·node·is·started·in·short·name·distributed·mode.</p><p>If·this·parameter·is·not·specified,·it·defaults·to·<code·class="inline">/etc/resolv.conf</code>·unless |
| 179 | environment·variable·<code·class="inline">ERL_INET_ETC_DIR</code>·is·set,·which·defines·the·directory | 179 | environment·variable·<code·class="inline">ERL_INET_ETC_DIR</code>·is·set,·which·defines·the·directory |
| 180 | for·this·file·to·some·maybe·other·than·<code·class="inline">/etc</code>.</p></li><li><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="8 | 180 | for·this·file·to·some·maybe·other·than·<code·class="inline">/etc</code>.</p></li><li><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="8625094234-1">{</span><span·class="ss">hosts_file</span><span·class="p">,</span><span·class="w">·</span><span·class="n">File</span><span·class="p"·data-group-id="8625094234-1">}</span><span·class="p">.</span><span·class="w"> |
| 181 | ··</span><span·class="n">File</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">string</span><span·class="p"·data-group-id="8 | 181 | ··</span><span·class="n">File</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">string</span><span·class="p"·data-group-id="8625094234-2">(</span><span·class="p"·data-group-id="8625094234-2">)</span></code></pre><p>Specify·a·system·file·that·Erlang·is·to·read·resolver·configuration·from·for |
| 182 | the·internal·hosts·file·resolver,·and·monitor·for·changes,·even·if·it·does·not | 182 | the·internal·hosts·file·resolver,·and·monitor·for·changes,·even·if·it·does·not |
| 183 | exist.·The·path·must·be·absolute.</p><p>These·host·entries·are·searched·after·all·added·with·<code·class="inline">{file,·hosts,·File}</code> | 183 | exist.·The·path·must·be·absolute.</p><p>These·host·entries·are·searched·after·all·added·with·<code·class="inline">{file,·hosts,·File}</code> |
| 184 | above·or·<code·class="inline">{host,·IP,·Aliases}</code>·below·when·lookup·option·<code·class="inline">file</code>·is·used.</p><p>If·the·file·is·specified·as·an·empty·string·<code·class="inline">""</code>,·no·file·is·read·or·monitored | 184 | above·or·<code·class="inline">{host,·IP,·Aliases}</code>·below·when·lookup·option·<code·class="inline">file</code>·is·used.</p><p>If·the·file·is·specified·as·an·empty·string·<code·class="inline">""</code>,·no·file·is·read·or·monitored |
| 185 | in·the·future.·This·emulates·the·old·behavior·of·not·configuring·the·DNS | 185 | in·the·future.·This·emulates·the·old·behavior·of·not·configuring·the·DNS |
| 186 | client·when·the·node·is·started·in·short·name·distributed·mode.</p><p>If·this·parameter·is·not·specified,·it·defaults·to·<code·class="inline">/etc/hosts</code>·unless | 186 | client·when·the·node·is·started·in·short·name·distributed·mode.</p><p>If·this·parameter·is·not·specified,·it·defaults·to·<code·class="inline">/etc/hosts</code>·unless |
| 187 | environment·variable·<code·class="inline">ERL_INET_ETC_DIR</code>·is·set,·which·defines·the·directory | 187 | environment·variable·<code·class="inline">ERL_INET_ETC_DIR</code>·is·set,·which·defines·the·directory |
| 188 | for·this·file·to·some·maybe·other·than·<code·class="inline">/etc</code>.</p></li><li><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 188 | for·this·file·to·some·maybe·other·than·<code·class="inline">/etc</code>.</p></li><li><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="8423080490-1">{</span><span·class="ss">registry</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Type</span><span·class="p"·data-group-id="8423080490-1">}</span><span·class="p">.</span><span·class="w"> |
| 189 | ··</span><span·class="n">Type</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">atom</span><span·class="p"·data-group-id=" | 189 | ··</span><span·class="n">Type</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">atom</span><span·class="p"·data-group-id="8423080490-2">(</span><span·class="p"·data-group-id="8423080490-2">)</span></code></pre><p>Specify·a·system·registry·that·Erlang·is·to·read·configuration·data·from. |
| 190 | <code·class="inline">win32</code>·is·the·only·valid·option.</p></li><li><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 190 | <code·class="inline">win32</code>·is·the·only·valid·option.</p></li><li><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="7149869574-1">{</span><span·class="ss">host</span><span·class="p">,</span><span·class="w">·</span><span·class="n">IP</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Aliases</span><span·class="p"·data-group-id="7149869574-1">}</span><span·class="p">.</span><span·class="w"> |
| 191 | ··</span><span·class="n">IP</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">tuple</span><span·class="p"·data-group-id="5952260704-2">(</span><span·class="p"·data-group-id="5952260704-2">)</span></code></pre><p><code·class="inline">Aliases·=·[string()]</code></p><p>Add·host·entry·to·the·hosts·table.</p></li><li><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="5683331878-1">{</span><span·class="ss">domain</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Domain</span><span·class="p"·data-group-id="5683331878-1">}</span><span·class="p">.</span><span·class="w"> | ||
| 192 | ··</span><span·class="n"> | 191 | ··</span><span·class="n">IP</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">tuple</span><span·class="p"·data-group-id="7149869574-2">(</span><span·class="p"·data-group-id="7149869574-2">)</span></code></pre><p><code·class="inline">Ali[·...·truncated·by·diffoscope;·len:·327,·SHA:·18eb031f0d1302238024090a33eb303949ee1a3691318b7a609a505d41330c21·...·]-1">}</span><span·class="p">.</span><span·class="w"> |
| 192 | ··</span><span·class="n">Domain</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">string</span><span·class="p"·data-group-id="6085415776-2">(</span><span·class="p"·data-group-id="6085415776-2">)</span></code></pre><p>Set·domain·name.</p></li><li><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="2194637297-1">{</span><span·class="ss">nameserver</span><span·class="p">,</span><span·class="w">·</span><span·class="n">IP</span><span·class="w">·</span><span·class="p"·data-group-id="2194637297-2">[</span><span·class="p">,</span><span·class="n">Port</span><span·class="p"·data-group-id="2194637297-2">]</span><span·class="p"·data-group-id="2194637297-1">}</span><span·class="p">.</span><span·class="w"> | ||
| 193 | ··</span><span·class="n">IP</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">tuple</span><span·class="p"·data-group-id="2 | 193 | ··</span><span·class="n">IP</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">tuple</span><span·class="p"·data-group-id="2194637297-3">(</span><span·class="p"·data-group-id="2194637297-3">)</span><span·class="w"> |
| 194 | ··</span><span·class="n">Port</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="2 | 194 | ··</span><span·class="n">Port</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="2194637297-4">(</span><span·class="p"·data-group-id="2194637297-4">)</span></code></pre><p>Add·address·(and·port,·if·other·than·default)·of·the·primary·nameserver·to·use |
| 195 | for·<a·href="../../../lib/kernel-10.3/doc/html/inet_res.html"><code·class="inline">inet_res</code></a>.</p></li><li><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 195 | for·<a·href="../../../lib/kernel-10.3/doc/html/inet_res.html"><code·class="inline">inet_res</code></a>.</p></li><li><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="7221402606-1">{</span><span·class="ss">alt_nameserver</span><span·class="p">,</span><span·class="w">·</span><span·class="n">IP</span><span·class="w">·</span><span·class="p"·data-group-id="7221402606-2">[</span><span·class="p">,</span><span·class="n">Port</[·...·truncated·by·diffoscope;·len:·99,·SHA:·6728092a08f53be29ef79d0d4656939761cac6bab1bebc806824b75d3e76aa9e·...·]-1">}</span><span·class="p">.</span><span·class="w"> |
| 196 | ··</span><span·class="n">IP</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">tuple</span><span·class="p"·data-group-id=" | 196 | ··</span><span·class="n">IP</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">tuple</span><span·class="p"·data-group-id="7221402606-3">(</span><span·class="p"·data-group-id="7221402606-3">)</span><span·class="w"> |
| 197 | ··</span><span·class="n">Port</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id=" | 197 | ··</span><span·class="n">Port</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="7221402606-4">(</span><span·class="p"·data-group-id="7221402606-4">)</span></code></pre><p>Add·address·(and·port,·if·other·than·default)·of·the·secondary·nameserver·for |
| 198 | <a·href="../../../lib/kernel-10.3/doc/html/inet_res.html"><code·class="inline">inet_res</code></a>.</p></li><li><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="4683316815-1">{</span><span·class="ss">search</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Domains</span><span·class="p"·data-group-id="4683316815-1">}</span><span·class="p">.</span><span·class="w"> | ||
| 199 | ··</span><span·class="n">Domains</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="4683316815-2">[</span><span·class="nf">string</span><span·class="p"·data-group-id="4683316815-3">(</span><span·class="p"·data-group-id="4683316815-3">)</span><span·class="p"·data-group-id="4683316815-2">]</span></code></pre><p>Add·search·domains·for·<a·href="../../../lib/kernel-10.3/doc/html/inet_res.html"><code·class="inline">inet_res</code></a>.</p></li><li><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="2055626343-1">{</span><span·class="ss">lookup</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Methods</span><span·class="p"·data-group-id="2055626343-1">}</span><span·class="p">.</span><span·class="w"> | ||
| 200 | · | 198 | <a·href="../../../lib/kernel-10.3/doc/html/inet_res.html"><code·class="inline">inet_res</code></a>.</p></li><li><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="5952998512-1">{</span><span·class="ss">search</span><span·class="[·...·truncated·by·diffoscope;·len:·158,·SHA:·18b00e5798a7759793debb2da182c931f1c6a0d9f6c3dc768e9f813c43229571·...·] |
| 199 | ··</span><span·class="n">Domains</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="5952998512-2">[</span><span·class="nf">string</span><span·class="p"·data-group-id="5952998512-3">(</span><span·class="p"·data-group-id="5952998512-3">)</span><span·class="p"·data-group-id="5952998512-2">]</span></code></pre><p>Add·search·domains·for·<a·href="../../../lib/kernel-10.3/doc/html/inet_res.html"><code·class="inline">inet_res</code></a>.</p></li><li><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="3204153394-1">{</span><span·class="ss">lookup</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Methods</span><span·class="p"·data-group-id="3204153394-1">}</span><span·class="p">.</span><span·class="w"> | ||
| 200 | ··</span><span·class="n">Methods</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="3204153394-2">[</span><span·class="nf">atom</span><span·class="p"·data-group-id="3204153394-3">(</span><span·class="p"·data-group-id="3204153394-3">)</span><span·class="p"·data-group-id="3204153394-2">]</span></code></pre><p>Specify·lookup·methods·and·in·which·order·to·try·them.·The·valid·methods·are | ||
| 201 | as·follows:</p><ul><li><code·class="inline">native</code>·(use·system·calls)</li><li><code·class="inline">file</code>·(use·host·data·retrieved·from·system·configuration·files·and/or·the | 201 | as·follows:</p><ul><li><code·class="inline">native</code>·(use·system·calls)</li><li><code·class="inline">file</code>·(use·host·data·retrieved·from·system·configuration·files·and/or·the |
| 202 | user·configuration·file)</li><li><code·class="inline">dns</code>·(use·the·Erlang·DNS·client·<a·href="../../../lib/kernel-10.3/doc/html/inet_res.html"><code·class="inline">inet_res</code></a>·for·nameserver·queries)</li></ul><p>The·lookup·method·<code·class="inline">string</code>·tries·to·parse·the·hostname·as·an·IPv4·or·IPv6 | 202 | user·configuration·file)</li><li><code·class="inline">dns</code>·(use·the·Erlang·DNS·client·<a·href="../../../lib/kernel-10.3/doc/html/inet_res.html"><code·class="inline">inet_res</code></a>·for·nameserver·queries)</li></ul><p>The·lookup·method·<code·class="inline">string</code>·tries·to·parse·the·hostname·as·an·IPv4·or·IPv6 |
| 203 | string·and·return·the·resulting·IP·address.·It·is·automatically·tried·first | 203 | string·and·return·the·resulting·IP·address.·It·is·automatically·tried·first |
| 204 | when·<code·class="inline">native</code>·is·<em>not</em>·in·the·<code·class="inline">Methods</code>·list.·To·skip·it·in·this·case,·the | 204 | when·<code·class="inline">native</code>·is·<em>not</em>·in·the·<code·class="inline">Methods</code>·list.·To·skip·it·in·this·case,·the |
| 205 | pseudo·lookup·method·<code·class="inline">nostring</code>·can·be·inserted·anywhere·in·the·<code·class="inline">Methods</code> | 205 | pseudo·lookup·method·<code·class="inline">nostring</code>·can·be·inserted·anywhere·in·the·<code·class="inline">Methods</code> |
| 206 | list.</p></li><li><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 206 | list.</p></li><li><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="0006212093-1">{</span><span·class="ss">cache_size</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Size</span><span·class="p"·data-group-id="0006212093-1">}</span><span·class="p">.</span><span·class="w"> |
| 207 | ··</span><span·class="n">Size</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id=" | 207 | ··</span><span·class="n">Size</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="0006212093-2">(</span><span·class="p"·data-group-id="0006212093-2">)</span></code></pre><p>Set·the·resolver·cache·size·for·<code·class="inline">dns</code>·lookups.·<code·class="inline">native</code>·lookups·are·not |
| 208 | cached.·Defaults·to·100·DNS·records.</p></li><li><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 208 | cached.·Defaults·to·100·DNS·records.</p></li><li><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="0550296173-1">{</span><span·class="ss">cache_refresh</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Time</span><span·class="p"·data-group-id="0550296173-1">}</span><span·class="p">.</span><span·class="w"> |
| 209 | ··</span><span·class="n">Time</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id=" | 209 | ··</span><span·class="n">Time</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="0550296173-2">(</span><span·class="p"·data-group-id="0550296173-2">)</span></code></pre><p>Set·how·often·(in·milliseconds)·the·resolver·cache·for·<a·href="../../../lib/kernel-10.3/doc/html/inet_res.html"><code·class="inline">inet_res</code></a>·is |
| 210 | refreshed·(that·is,·expired·DNS·records·are·deleted).·Defaults·to·1·hour.</p></li><li><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="5 | 210 | refreshed·(that·is,·expired·DNS·records·are·deleted).·Defaults·to·1·hour.</p></li><li><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="4545349918-1">{</span><span·class="ss">timeout</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Time</span><span·class="p"·data-group-id="4545349918-1">}</span><span·class="p">.</span><span·class="w"> |
| 211 | ··</span><span·class="n">Time</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="5 | 211 | ··</span><span·class="n">Time</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="4545349918-2">(</span><span·class="p"·data-group-id="4545349918-2">)</span></code></pre><p>Set·the·time·to·wait·until·retry·(in·milliseconds)·for·DNS·queries·made·by |
| 212 | <a·href="../../../lib/kernel-10.3/doc/html/inet_res.html"><code·class="inline">inet_res</code></a>.·Defaults·to·2·seconds.</p></li><li><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="808 | 212 | <a·href="../../../lib/kernel-10.3/doc/html/inet_res.html"><code·class="inline">inet_res</code></a>.·Defaults·to·2·seconds.</p></li><li><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="5830892334-1">{</span><span·class="ss">retry</span><span·class="p">,</span><span·class="w">·</span><span·class="n">N</span><span·class="p"·data-group-id="5830892334-1">}</span><span·class="p">.</span><span·class="w"> |
| 213 | ··</span><span·class="n">N</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="808 | 213 | ··</span><span·class="n">N</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="5830892334-2">(</span><span·class="p"·data-group-id="5830892334-2">)</span></code></pre><p>Set·the·number·of·DNS·queries·<a·href="../../../lib/kernel-10.3/doc/html/inet_res.html"><code·class="inline">inet_res</code></a>·will·try·before·giving·up.·Defaults |
| 214 | to·3.</p></li><li><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 214 | to·3.</p></li><li><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="9699333942-1">{</span><span·class="ss">servfail_retry_timeout</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Time</span><span·class="p"·data-group-id="9699333942-1">}</span><span·class="p">.</span><span·class="w"> |
| 215 | ··</span><span·class="n">Time</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">non_neg_integer</span><span·class="p"·data-group-id=" | 215 | ··</span><span·class="n">Time</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">non_neg_integer</span><span·class="p"·data-group-id="9699333942-2">(</span><span·class="p"·data-group-id="9699333942-2">)</span></code></pre><p>After·all·name·servers·have·been·tried,·there·is·a·timeout·before·the·name |
| 216 | servers·are·tried·again.·This·is·to·prevent·the·server·from·answering·the | 216 | servers·are·tried·again.·This·is·to·prevent·the·server·from·answering·the |
| 217 | query·with·what's·in·the·servfail·cache, | 217 | query·with·what's·in·the·servfail·cache, |
| 218 | <a·href="../../../lib/kernel-10.3/doc/html/inet_res.html#servfail_retry_timeout"><code·class="inline">inet_res</code></a>.·Defaults·to·1500·milli | 218 | <a·href="../../../lib/kernel-10.3/doc/html/inet_res.html#servfail_retry_timeout"><code·class="inline">inet_res</code></a>.·Defaults·to·1500·milli |
| 219 | seconds·.</p></li><li><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 219 | seconds·.</p></li><li><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="3462469504-1">{</span><span·class="ss">inet6</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Bool</span><span·class="p"·data-group-id="3462469504-1">}</span><span·class="p">.</span><span·class="w"> |
| 220 | ··</span><span·class="n">Bool</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">true</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">false</span></code></pre><p>Tells·the·DNS·client·<a·href="../../../lib/kernel-10.3/doc/html/inet_res.html"><code·class="inline">inet_res</code></a>·to·look·up·IPv6·addresses.·Defaults·to | 220 | ··</span><span·class="n">Bool</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">true</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">false</span></code></pre><p>Tells·the·DNS·client·<a·href="../../../lib/kernel-10.3/doc/html/inet_res.html"><code·class="inline">inet_res</code></a>·to·look·up·IPv6·addresses.·Defaults·to |
| 221 | <code·class="inline">false</code>.</p></li><li><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 221 | <code·class="inline">false</code>.</p></li><li><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="2458686490-1">{</span><span·class="ss">usevc</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Bool</span><span·class="p"·data-group-id="2458686490-1">}</span><span·class="p">.</span><span·class="w"> |
| 222 | ··</span><span·class="n">Bool</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">true</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">false</span></code></pre><p>Tells·the·DNS·client·<a·href="../../../lib/kernel-10.3/doc/html/inet_res.html"><code·class="inline">inet_res</code></a>·to·use·TCP·(Virtual·Circuit)·instead·of·UDP. | 222 | ··</span><span·class="n">Bool</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">true</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">false</span></code></pre><p>Tells·the·DNS·client·<a·href="../../../lib/kernel-10.3/doc/html/inet_res.html"><code·class="inline">inet_res</code></a>·to·use·TCP·(Virtual·Circuit)·instead·of·UDP. |
| 223 | Defaults·to·<code·class="inline">false</code>.</p></li><li><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 223 | Defaults·to·<code·class="inline">false</code>.</p></li><li><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="2207891187-1">{</span><span·class="ss">edns</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Version</span><span·class="p"·data-group-id="2207891187-1">}</span><span·class="p">.</span><span·class="w"> |
| 224 | ··</span><span·class="n">Version</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">false</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="mi">0</span></code></pre><p>Sets·the·EDNS·version·that·<a·href="../../../lib/kernel-10.3/doc/html/inet_res.html"><code·class="inline">inet_res</code></a>·will·use.·The·only·allowed·version·is | 224 | ··</span><span·class="n">Version</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">false</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="mi">0</span></code></pre><p>Sets·the·EDNS·version·that·<a·href="../../../lib/kernel-10.3/doc/html/inet_res.html"><code·class="inline">inet_res</code></a>·will·use.·The·only·allowed·version·is |
| 225 | zero.·Defaults·to·<code·class="inline">false</code>,·which·means·not·to·use·EDNS.</p></li><li><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="4 | 225 | zero.·Defaults·to·<code·class="inline">false</code>,·which·means·not·to·use·EDNS.</p></li><li><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="7426941944-1">{</span><span·class="ss">udp_payload_size</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Size</span><span·class="p"·data-group-id="7426941944-1">}</span><span·class="p">.</span><span·class="w"> |
| 226 | ··</span><span·class="n">N</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="4 | 226 | ··</span><span·class="n">N</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="7426941944-2">(</span><span·class="p"·data-group-id="7426941944-2">)</span></code></pre><p>Sets·the·allowed·UDP·payload·size·<a·href="../../../lib/kernel-10.3/doc/html/inet_res.html"><code·class="inline">inet_res</code></a>·will·advertise·in·EDNS·queries. |
| 227 | Also·sets·the·limit·when·the·DNS·query·will·be·deemed·too·large·for·UDP | 227 | Also·sets·the·limit·when·the·DNS·query·will·be·deemed·too·large·for·UDP |
| 228 | forcing·a·TCP·query·instead;·this·is·not·entirely·correct,·as·the·advertised | 228 | forcing·a·TCP·query·instead;·this·is·not·entirely·correct,·as·the·advertised |
| 229 | UDP·payload·size·of·the·individual·nameserver·is·what·is·to·be·used,·but·this | 229 | UDP·payload·size·of·the·individual·nameserver·is·what·is·to·be·used,·but·this |
| 230 | simple·strategy·will·do·until·a·more·intelligent·(probing,·caching)·algorithm | 230 | simple·strategy·will·do·until·a·more·intelligent·(probing,·caching)·algorithm |
| 231 | needs·to·be·implemented.·Default·to·1280,·which·stems·from·the·standard | 231 | needs·to·be·implemented.·Default·to·1280,·which·stems·from·the·standard |
| 232 | Ethernet·MTU·size.</p></li><li><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 232 | Ethernet·MTU·size.</p></li><li><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="7636297333-1">{</span><span·class="ss">udp</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Module</span><span·class="p"·data-group-id="7636297333-1">}</span><span·class="p">.</span><span·class="w"> |
| 233 | ··</span><span·class="n">Module</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">atom</span><span·class="p"·data-group-id=" | 233 | ··</span><span·class="n">Module</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">atom</span><span·class="p"·data-group-id="7636297333-2">(</span><span·class="p"·data-group-id="7636297333-2">)</span></code></pre><p>Tell·Erlang·to·use·another·primitive·UDP·module·than·<code·class="inline">inet_udp</code>.</p></li><li><pre><code·class="makeup·erlang"·translate="no"><span·class="p[·...·truncated·by·diffoscope;·len:·184,·SHA:·dc2b17a17154f7057a183c83c16ce098b68c3a4926342173f20b90de7522e6d2·...·]-1">}</span><span·class="p">.</span><span·class="w"> |
| 234 | ··</span><span·class="n">Module</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">atom</span><span·class="p"·data-group-id=" | 234 | ··</span><span·class="n">Module</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">atom</span><span·class="p"·data-group-id="0007153795-2">(</span><span·class="p"·data-group-id="0007153795-2">)</span></code></pre><p>Tell·Erlang·to·use·another·primitive·TCP·module·than·<code·class="inline">inet_tcp</code>.</p></li><li><pre><code·class="makeup·erlang"·translate="no"><span·class="ss">clear_hosts</span><span·class="p">.</span></code></pre><p>Clear·the·hosts·table.</p></li><li><pre><code·class="makeup·erlang"·translate="no"><span·class="ss">clear_ns</span><span·class="p">.</span></code></pre><p>Clear·the·list·of·recorded·nameservers·(primary·and·secondary).</p></li><li><pre><code·class="makeup·erlang"·translate="no"><span·class="ss">clear_search</span><span·class="p">.</span></code></pre><p>Clear·the·list·of·search·domains.</p></li></ul><h2·id="user-configuration-example"·class="section-heading"> |
| 235 | ··<a·href="#user-configuration-example"·class="hover-link"> | 235 | ··<a·href="#user-configuration-example"·class="hover-link"> |
| 236 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 236 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 237 | ··</a> | 237 | ··</a> |
| 238 | ··<span·class="text">User·Configuration·Example</span> | 238 | ··<span·class="text">User·Configuration·Example</span> |
| 239 | </h2> | 239 | </h2> |
| 240 | <p>Assume·that·a·user·does·not·want·Erlang·to·use·the·native·lookup·method,·but | 240 | <p>Assume·that·a·user·does·not·want·Erlang·to·use·the·native·lookup·method,·but |
| 241 | wants·Erlang·to·read·all·information·necessary·from·start·and·use·that·for | 241 | wants·Erlang·to·read·all·information·necessary·from·start·and·use·that·for |
| 242 | resolving·names·and·addresses.·If·lookup·fails,·Erlang·is·to·request·the·data | 242 | resolving·names·and·addresses.·If·lookup·fails,·Erlang·is·to·request·the·data |
| 243 | from·a·nameserver·(using·the·Erlang·DNS·client,·set·to·use·EDNS·allowing·larger | 243 | from·a·nameserver·(using·the·Erlang·DNS·client,·set·to·use·EDNS·allowing·larger |
| 244 | responses).·The·resolver·configuration·is·updated·when·its·configuration·file | 244 | responses).·The·resolver·configuration·is·updated·when·its·configuration·file |
| 245 | changes.·Also,·DNS·records·are·never·to·be·cached.·The·user·configuration·file | 245 | changes.·Also,·DNS·records·are·never·to·be·cached.·The·user·configuration·file |
| 246 | (in·this·example·named·<code·class="inline">erl_inetrc</code>,·stored·in·directory·<code·class="inline">./cfg_files</code>)·can·then | 246 | (in·this·example·named·<code·class="inline">erl_inetrc</code>,·stored·in·directory·<code·class="inline">./cfg_files</code>)·can·then |
| 247 | look·as·follows·(Unix):</p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%%·--·ERLANG·INET·CONFIGURATION·FILE·--</span><span·class="w"> | 247 | look·as·follows·(Unix):</p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%%·--·ERLANG·INET·CONFIGURATION·FILE·--</span><span·class="w"> |
| 248 | </span><span·class="c1">%%·read·the·hosts·file</span><span·class="w"> | 248 | </span><span·class="c1">%%·read·the·hosts·file</span><span·class="w"> |
| 249 | </span><span·class="p"·data-group-id=" | 249 | </span><span·class="p"·data-group-id="1382846620-1">{</span><span·class="ss">file</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">hosts</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"/etc/hosts"</span><span·class="p"·data-group-id="13828[·...·truncated·by·diffoscope;·len:·5,·SHA:·78b598dcb2a97ad2c5dcb8c4faecf623a4beafd25202689085836b560afa51ea·...·]-1">}</span><span·class="p">.</span><span·class="w"> |
| 250 | </span><span·class="c1">%%·add·a·particular·host</span><span·class="w"> | 250 | </span><span·class="c1">%%·add·a·particular·host</span><span·class="w"> |
| 251 | </span><span·class="p"·data-group-id=" | 251 | </span><span·class="p"·data-group-id="1382846620-2">{</span><span·class="ss">host</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1382846620-3">{</span><span·class="mi">134</span><span·class="p">,</span><span·class="mi">138</span><span·class="p">,</span><sp[·...·truncated·by·diffoscope;·len:·363,·SHA:·9da1b77f323d88139e02c5995c2fbe3eac87599b788c36e9b52c47162c632253·...·]-2">}</span><span·class="p">.</span><span·class="w"> |
| 252 | </span><span·class="c1">%%·do·not·monitor·the·hosts·file</span><span·class="w"> | 252 | </span><span·class="c1">%%·do·not·monitor·the·hosts·file</span><span·class="w"> |
| 253 | </span><span·class="p"·data-group-id=" | 253 | </span><span·class="p"·data-group-id="1382846620-5">{</span><span·class="ss">hosts_file</span><span·class="p">,</span><span·class="w">·</span><span·class="s">""</span><span·class="p"·data-group-id="1382846620-5">}</span><span·class="p">.</span><span·class="w"> |
| 254 | </span><span·class="c1">%%·read·and·monitor·nameserver·config·from·here</span><span·class="w"> | 254 | </span><span·class="c1">%%·read·and·monitor·nameserver·config·from·here</span><span·class="w"> |
| 255 | </span><span·class="p"·data-group-id=" | 255 | </span><span·class="p"·data-group-id="1382846620-6">{</span><span·class="ss">resolv_conf</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"/usr/local/etc/resolv.conf"</span><span·class="p"·data-group-id="1382846620-6">}</span><span·class="p">.</span><span·class="w"> |
| 256 | </span><span·class="c1">%%·enable·EDNS</span><span·class="w"> | 256 | </span><span·class="c1">%%·enable·EDNS</span><span·class="w"> |
| 257 | </span><span·class="p"·data-group-id=" | 257 | </span><span·class="p"·data-group-id="1382846620-7">{</span><span·class="ss">edns</span><span·class="p">,</span><span·class="mi">0</span><span·class="p"·data-group-id="1382846620-7">}</span><span·class="p">.</span><span·class="w"> |
| 258 | </span><span·class="c1">%%·disable·caching</span><span·class="w"> | 258 | </span><span·class="c1">%%·disable·caching</span><span·class="w"> |
| 259 | </span><span·class="p"·data-group-id=" | 259 | </span><span·class="p"·data-group-id="1382846620-8">{</span><span·class="ss">cache_size</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">0</span><span·class="p"·data-group-id="1382846620-8">}</span><span·class="p">.</span><span·class="w"> |
| 260 | </span><span·class="c1">%%·specify·lookup·method</span><span·class="w"> | 260 | </span><span·class="c1">%%·specify·lookup·method</span><span·class="w"> |
| 261 | </span><span·class="p"·data-group-id=" | 261 | </span><span·class="p"·data-group-id="1382846620-9">{</span><span·class="ss">lookup</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1382846620-10">[</span><span·class="ss">file</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">dns</span[·...·truncated·by·diffoscope;·len:·96,·SHA:·93441881a0c4d23583ae0bddb976e1f124004f9355edfd1acf914781a3190977·...·]-9">}</span><span·class="p">.</span></code></pre><p>And·Erlang·can,·for·example,·be·started·as·follows:</p><pre><code·class="text">%·erl·-sname·my_node·-kernel·inetrc·'"./cfg_files/erl_inetrc"'</code></pre> |
| 262 | </div> | 262 | </div> |
| 263 | <div·class="bottom-actions"·id="bottom-actions"> | 263 | <div·class="bottom-actions"·id="bottom-actions"> |
| 264 | ··<div·class="bottom-actions-item"> | 264 | ··<div·class="bottom-actions-item"> |
| 265 | ······<a·href="driver.html"·class="bottom-actions-button"·rel="prev"> | 265 | ······<a·href="driver.html"·class="bottom-actions-button"·rel="prev"> |
| 266 | ········<span·class="subheader"> | 266 | ········<span·class="subheader"> |
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| 301 | ······<p·class="built-using"> | 301 | ······<p·class="built-using"> |
| 302 | ········Built·using | 302 | ········Built·using |
| 303 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 303 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 304 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 304 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 305 | ······</p> | 305 | ······</p> |
| 306 | <p>Copyright·©·1996-202 | 306 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 307 | ····</footer> | 307 | ····</footer> |
| 308 | ··</div> | 308 | ··</div> |
| 309 | </main> | 309 | </main> |
| 310 | </div> | 310 | </div> |
| 311 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 311 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 312 | ··<script> | 312 | ··<script> |
| 313 | ··let·initialized·=·false; | 313 | ··let·initialized·=·false; |
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| 157 | BF</code></pre><p>If·multiple·<code·class="inline">-eval</code>·expressions·are·specified,·they·are·evaluated·sequentially | 157 | BF</code></pre><p>If·multiple·<code·class="inline">-eval</code>·expressions·are·specified,·they·are·evaluated·sequentially |
| 158 | in·the·order·specified.·<code·class="inline">-eval</code>·expressions·are·evaluated·sequentially·with | 158 | in·the·order·specified.·<code·class="inline">-eval</code>·expressions·are·evaluated·sequentially·with |
| 159 | <code·class="inline">-s</code>·and·<code·class="inline">-run</code>·function·calls·(this·also·in·the·order·specified).·As·with | 159 | <code·class="inline">-s</code>·and·<code·class="inline">-run</code>·function·calls·(this·also·in·the·order·specified).·As·with |
| 160 | <code·class="inline">-s</code>·and·<code·class="inline">-run</code>,·an·evaluation·that·does·not·terminate·blocks·the·system | 160 | <code·class="inline">-s</code>·and·<code·class="inline">-run</code>,·an·evaluation·that·does·not·terminate·blocks·the·system |
| 161 | initialization·process.</p></li><li><p><strong><code·class="inline">-extra</code></strong>·-·Everything·following·<code·class="inline">-extra</code>·is·considered·plain·arguments·and | 161 | initialization·process.</p></li><li><p><strong><code·class="inline">-extra</code></strong>·-·Everything·following·<code·class="inline">-extra</code>·is·considered·plain·arguments·and |
| 162 | can·be·retrieved·using·<a·href="#get_plain_arguments/0"><code·class="inline">get_plain_arguments/0</code></a>.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%·erl·-extra·+A·1·--</span><span·class="w"> | 162 | can·be·retrieved·using·<a·href="#get_plain_arguments/0"><code·class="inline">get_plain_arguments/0</code></a>.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%·erl·-extra·+A·1·--</span><span·class="w"> |
| 163 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="gp·unselectable"> | 163 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="gp·unselectable"> |
| 164 | 1>·</span><span·class="nc">init</span><span·class="p">:</span><span·class="nf">get_plain_arguments</span><span·class="p"·data-group-id=" | 164 | 1>·</span><span·class="nc">init</span><span·class="p">:</span><span·class="nf">get_plain_arguments</span><span·class="p"·data-group-id="0204271619-1">(</span><span·class="p"·data-group-id="0204271619-1">)</span><span·class="p">.</span><span·class="w"> |
| 165 | </span><span·class="p"·data-group-id=" | 165 | </span><span·class="p"·data-group-id="0204271619-2">[</span><span·class="s">"+A"</span><span·class="p">,</span><span·class="s">"1"</span><span·class="p">,</span><span·class="s">"--"</span><span·class="p"·data-group-id="0204271619-2">]</span></code></pre><p>The·<code·class="inline">-extra</code>·flag·can·be·passed·on·the·command·line,·through·<code·class="inline">ERL_*FLAGS</code>·or |
| 166 | <code·class="inline">-args_file</code>.·It·only·effects·the·remaining·command-line·flags·in·the·entity | 166 | <code·class="inline">-args_file</code>.·It·only·effects·the·remaining·command-line·flags·in·the·entity |
| 167 | in·which·it·is·passed.·If·multiple·<code·class="inline">-extra</code>·flags·are·passed·they·are | 167 | in·which·it·is·passed.·If·multiple·<code·class="inline">-extra</code>·flags·are·passed·they·are |
| 168 | concatenated·using·the·same·order·rules·as·<code·class="inline">ERL_*FLAGS</code>·or·<code·class="inline">-args_file</code>·in | 168 | concatenated·using·the·same·order·rules·as·<code·class="inline">ERL_*FLAGS</code>·or·<code·class="inline">-args_file</code>·in |
| 169 | which·they·are·given.</p><p>Example:</p><pre><code·class="text">%·ERL_AFLAGS="-extra·a"·ERL_ZFLAGS="-extra·d"·erl·-extra·b·-extra·c | 169 | which·they·are·given.</p><p>Example:</p><pre><code·class="text">%·ERL_AFLAGS="-extra·a"·ERL_ZFLAGS="-extra·d"·erl·-extra·b·-extra·c |
| 170 | ... | 170 | ... |
| 171 | 1>·init:get_plain_arguments(). | 171 | 1>·init:get_plain_arguments(). |
| 172 | ["a","b","-extra","c","d"]</code></pre></li><li><p><strong><code·class="inline">-S·Mod·[Func·[Arg1,·Arg2,·...]]</code></strong>·-·Evaluates·the·specified·function·call | 172 | ["a","b","-extra","c","d"]</code></pre></li><li><p><strong><code·class="inline">-S·Mod·[Func·[Arg1,·Arg2,·...]]</code></strong>·-·Evaluates·the·specified·function·call |
| Offset 212, 21 lines modified | Offset 212, 21 lines modified | ||
| 212 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 212 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 213 | ··</a> | 213 | ··</a> |
| 214 | ··<span·class="text">Example</span> | 214 | ··<span·class="text">Example</span> |
| 215 | </h2> | 215 | </h2> |
| 216 | <pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%·erl·--·a·b·-children·thomas·claire·-ages·7·3·--·x·y</span><span·class="w"> | 216 | <pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%·erl·--·a·b·-children·thomas·claire·-ages·7·3·--·x·y</span><span·class="w"> |
| 217 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> | 217 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> |
| 218 | </span><span·class="mi">1</span><span·class="o">></span><span·class="w">·</span><span·class="nc">init</span><span·class="p">:</span><span·class="nf">get_plain_arguments</span><span·class="p"·data-group-id=" | 218 | </span><span·class="mi">1</span><span·class="o">></span><span·class="w">·</span><span·class="nc">init</span><span·class="p">:</span><span·class="nf">get_plain_arguments</span><span·class="p"·data-group-id="2936098738-1">(</span><span·class="p"·data-group-id="2936098738-1">)</span><span·class="p">.</span><span·class="w"> |
| 219 | </span><span·class="p"·data-group-id=" | 219 | </span><span·class="p"·data-group-id="2936098738-2">[</span><span·class="s">"a"</span><span·class="p">,</span><span·class="s">"b"</span><span·class="p">,</span><span·class="s">"x"</span><span·class="p">,</span><span·class="s">"y"</span><span·class="p"·da[·...·truncated·by·diffoscope;·len:·23,·SHA:·1ae24997f2a1e4427888f958025c2731e1b2b2db1b5ac8e3f13d4a5ed7d3a3f1·...·]-2">]</span><span·class="gp·unselectable"> |
| 220 | 2>·</span><span·class="nc">init</span><span·class="p">:</span><span·class="nf">get_argument</span><span·class="p"·data-group-id=" | 220 | 2>·</span><span·class="nc">init</span><span·class="p">:</span><span·class="nf">get_argument</span><span·class="p"·data-group-id="2936098738-3">(</span><span·class="ss">children</span><span·class="p"·data-group-id="2936098738-3">)</span><span·class="p">.</span><span·class="w"> |
| 221 | </span><span·class="p"·data-group-id=" | 221 | </span><span·class="p"·data-group-id="2936098738-4">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="p"·data-group-id="2936098738-5">[</span><span·class="p"·data-group-id="2936098738-6">[</span><span·class="s">"thomas"</span><span·class="p">,</span><span·class="[·...·truncated·by·diffoscope;·len:·175,·SHA:·efab0f88d2b4c4411b90ea457cbd58972d5c34e811213d99cfb031d58e316294·...·]-4">}</span><span·class="gp·unselectable"> |
| 222 | 3>·</span><span·class="nc">init</span><span·class="p">:</span><span·class="nf">get_argument</span><span·class="p"·data-group-id=" | 222 | 3>·</span><span·class="nc">init</span><span·class="p">:</span><span·class="nf">get_argument</span><span·class="p"·data-group-id="2936098738-7">(</span><span·class="ss">ages</span><span·class="p"·data-group-id="2936098738-7">)</span><span·class="p">.</span><span·class="w"> |
| 223 | </span><span·class="p"·data-group-id=" | 223 | </span><span·class="p"·data-group-id="2936098738-8">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2936098738-9">[</span><span·class="p"·data-group-id="2936098738-10">[</span><span·class="s">"7"</span><span·class="p">,[·...·truncated·by·diffoscope;·len:·191,·SHA:·68353d9700748321804e35218b3cbe854000c66fa45e3a9a1bda00c03fba5dda·...·]-8">}</span><span·class="gp·unselectable"> |
| 224 | 4>·</span><span·class="nc">init</span><span·class="p">:</span><span·class="nf">get_argument</span><span·class="p"·data-group-id=" | 224 | 4>·</span><span·class="nc">init</span><span·class="p">:</span><span·class="nf">get_argument</span><span·class="p"·data-group-id="2936098738-11">(</span><span·class="ss">silly</span><span·class="p"·data-group-id="2936098738-11">)</span><span·class="p">.</span><span·class="w"> |
| 225 | </span><span·class="ss">error</span></code></pre><h2·id="module-see-also"·class="section-heading"> | 225 | </span><span·class="ss">error</span></code></pre><h2·id="module-see-also"·class="section-heading"> |
| 226 | ··<a·href="#module-see-also"·class="hover-link"> | 226 | ··<a·href="#module-see-also"·class="hover-link"> |
| 227 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 227 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 228 | ··</a> | 228 | ··</a> |
| 229 | ··<span·class="text">See·Also</span> | 229 | ··<span·class="text">See·Also</span> |
| 230 | </h2> | 230 | </h2> |
| 231 | <p><a·href="erl_prim_loader.html"><code·class="inline">erl_prim_loader</code></a>,·<a·href="../../../lib/kernel-10.3/doc/html/heart.html"><code·class="inline">heart</code></a></p> | 231 | <p><a·href="erl_prim_loader.html"><code·class="inline">erl_prim_loader</code></a>,·<a·href="../../../lib/kernel-10.3/doc/html/heart.html"><code·class="inline">heart</code></a></p> |
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| 512 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·get_argument(Flag)·->·{ok,·Arg}·|·error·when·Flag·::·<a·href="erlang.html#t:atom/0">atom</a>(),·Arg·::·[Values·::·[<a·href="erlang.html#t:string/0">string</a>()]].</pre> | 512 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·get_argument(Flag)·->·{ok,·Arg}·|·error·when·Flag·::·<a·href="erlang.html#t:atom/0">atom</a>(),·Arg·::·[Values·::·[<a·href="erlang.html#t:string/0">string</a>()]].</pre> |
| 513 | ······</div> | 513 | ······</div> |
| 514 | <p>Returns·all·values·associated·with·the·command-line·user·flag·<code·class="inline">Flag</code>.</p><p>If·<code·class="inline">Flag</code>·is·provided·several·times,·each·<code·class="inline">Values</code>·is·returned·in·preserved·order. | 514 | <p>Returns·all·values·associated·with·the·command-line·user·flag·<code·class="inline">Flag</code>.</p><p>If·<code·class="inline">Flag</code>·is·provided·several·times,·each·<code·class="inline">Values</code>·is·returned·in·preserved·order. |
| 515 | Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%·erl·-a·b·c·-a·d</span><span·class="w"> | 515 | Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%·erl·-a·b·c·-a·d</span><span·class="w"> |
| 516 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="gp·unselectable"> | 516 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="gp·unselectable"> |
| 517 | 1>·</span><span·class="nc">init</span><span·class="p">:</span><span·class="nf">get_argument</span><span·class="p"·data-group-id=" | 517 | 1>·</span><span·class="nc">init</span><span·class="p">:</span><span·class="nf">get_argument</span><span·class="p"·data-group-id="6155334368-1">(</span><span·class="ss">a</span><span·class="p"·data-group-id="6155334368-1">)</span><span·class="p">.</span><span·class="w"> |
| 518 | </span><span·class="p"·data-group-id=" | 518 | </span><span·class="p"·data-group-id="6155334368-2">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="p"·data-group-id="6155334368-3">[</span><span·class="p"·data-group-id="6155334368-4">[</span><span·class="s">"b"</span><span·class="p">,</span><span·class="s">&q[·...·truncated·by·diffoscope;·len:·331,·SHA:·e30586d6b123fb5ed80ebac7455550ba7bf1d01fbb0f2a1c941ba36a5f46952d·...·]-2">}</span></code></pre><p>The·following·flags·are·defined·automatically·and·can·be·retrieved·using·this |
| 519 | function:</p><ul><li><p><strong><code·class="inline">root</code></strong>·-·The·installation·directory·of·Erlang/OTP,·<code·class="inline">$ROOT</code>:</p><pre><code·class="text">2>·init:get_argument(root). | 519 | function:</p><ul><li><p><strong><code·class="inline">root</code></strong>·-·The·installation·directory·of·Erlang/OTP,·<code·class="inline">$ROOT</code>:</p><pre><code·class="text">2>·init:get_argument(root). |
| 520 | {ok,[["/usr/local/otp/releases/otp_beam_solaris8_r10b_patched"]]}</code></pre></li><li><p><strong><code·class="inline">progname</code></strong>·-·The·name·of·the·program·which·started·Erlang:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">3>·</span><span·class="nc">init</span><span·class="p">:</span><span·class="nf">get_argument</span><span·class="p"·data-group-id="12 | 520 | {ok,[["/usr/local/otp/releases/otp_beam_solaris8_r10b_patched"]]}</code></pre></li><li><p><strong><code·class="inline">progname</code></strong>·-·The·name·of·the·program·which·started·Erlang:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">3>·</span><span·class="nc">init</span><span·class="p">:</span><span·class="nf">get_argument</span><span·class="p"·data-group-id="1286839794-1">(</span><span·class="ss">progname</span><span·class="p"·data-group-id="1286839794-1">)</span><span·class="p">.</span><span·class="w"> |
| 521 | </span><span·class="p"·data-group-id="12 | 521 | </span><span·class="p"·data-group-id="1286839794-2">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="p"·data-group-id="1286839794-3">[</span><span·class="p"·data-group-id="1286839794-4">[</span><span·class="s">"erl"</span><span·class="p"·data-group-id="1286839794-[·...·truncated·by·diffoscope;·len:·558,·SHA:·15a9811d34e88440da912424f296ea5dba8cccf84bd6a794d69de6b9ce9f8996·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 522 | </span><span·class="p"·data-group-id=" | 522 | </span><span·class="p"·data-group-id="2867705706-2">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="p"·data-group-id="2867705706-3">[</span><span·class="p"·data-group-id="2867705706-4">[</span><span·class="s">"/home/harry"</span><span·class="p"·data-group-id="2[·...·truncated·by·diffoscope;·len:·115,·SHA:·08a7d38273a83c263fae13359fd5e2fbe60ec194ee0bf15a06027d660303e427·...·]-2">}</span></code></pre></li></ul><p>Returns·<code·class="inline">error</code>·if·no·value·is·associated·with·<code·class="inline">Flag</code>.</p> |
| 523 | ··</section> | 523 | ··</section> |
| 524 | </section> | 524 | </section> |
| 525 | <section·class="detail"·id="get_arguments/0"> | 525 | <section·class="detail"·id="get_arguments/0"> |
| 526 | ··<div·class="detail-header"> | 526 | ··<div·class="detail-header"> |
| 527 | ····<a·href="#get_arguments/0"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 527 | ····<a·href="#get_arguments/0"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 528 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 528 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
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| 797 | ······<p·class="built-using"> | 797 | ······<p·class="built-using"> |
| 798 | ········Built·using | 798 | ········Built·using |
| 799 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 799 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 800 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 800 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 801 | ······</p> | 801 | ······</p> |
| 802 | <p>Copyright·©·1996-202 | 802 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 803 | ····</footer> | 803 | ····</footer> |
| 804 | ··</div> | 804 | ··</div> |
| 805 | </main> | 805 | </main> |
| 806 | </div> | 806 | </div> |
| 807 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 807 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 808 | ··<script> | 808 | ··<script> |
| 809 | ··let·initialized·=·false; | 809 | ··let·initialized·=·false; |
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| 181 | ······<p·class="built-using"> | 181 | ······<p·class="built-using"> |
| 182 | ········Built·using | 182 | ········Built·using |
| 183 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 183 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 184 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 184 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 185 | ······</p> | 185 | ······</p> |
| 186 | <p>Copyright·©·1996-202 | 186 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 187 | ····</footer> | 187 | ····</footer> |
| 188 | ··</div> | 188 | ··</div> |
| 189 | </main> | 189 | </main> |
| 190 | </div> | 190 | </div> |
| 191 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 191 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 192 | ··<script> | 192 | ··<script> |
| 193 | ··let·initialized·=·false; | 193 | ··let·initialized·=·false; |
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| 367 | language,·that·is,·for·their·side·effects.·Functions·with·side·effects·are·also | 367 | language,·that·is,·for·their·side·effects.·Functions·with·side·effects·are·also |
| 368 | allowed·when·tracing.</p><h2·id="tracing-examples"·class="section-heading"> | 368 | allowed·when·tracing.</p><h2·id="tracing-examples"·class="section-heading"> |
| 369 | ··<a·href="#tracing-examples"·class="hover-link"> | 369 | ··<a·href="#tracing-examples"·class="hover-link"> |
| 370 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 370 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 371 | ··</a> | 371 | ··</a> |
| 372 | ··<span·class="text">Tracing·Examples</span> | 372 | ··<span·class="text">Tracing·Examples</span> |
| 373 | </h2> | 373 | </h2> |
| 374 | <p>Match·an·argument·list·of·three,·where·the·first·and·third·arguments·are·equal:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 374 | <p>Match·an·argument·list·of·three,·where·the·first·and·third·arguments·are·equal:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="9127065786-1">[</span><span·class="p"·data-group-id="9127065786-2">{</span><span·class="p"·data-group-id="9127065786-3">[</span><span·class="ss">'$1'</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">'_'</span><span·cla[·...·truncated·by·diffoscope;·len:·116,·SHA:·92697444cd4f8b95a7f76f061408fbe439c9ddd8d0320c8c875b643e22dd1303·...·]-3">]</span><span·class="p">,</span><span·class="w"> |
| 375 | ··</span><span·class="p"·data-group-id=" | 375 | ··</span><span·class="p"·data-group-id="9127065786-4">[</span><span·class="p"·data-group-id="9127065786-4">]</span><span·class="p">,</span><span·class="w"> |
| 376 | ··</span><span·class="p"·data-group-id=" | 376 | ··</span><span·class="p"·data-group-id="9127065786-5">[</span><span·class="p"·data-group-id="9127065786-5">]</span><span·class="p"·data-group-id="9127065786-2">}</span><span·class="p"·data-group-id="9127065786-1">]</span></code></pre><p>Match·an·argument·list·of·three,·where·the·second·argument·[·...·truncated·by·diffoscope;·len:·473,·SHA:·c715678d7ffcb6673042034e942100ae67cb41ef42ddc90b51be2b56ccfcb462·...·]-3">]</span><span·class="p">,</span><span·class="w"> |
| 377 | ··</span><span·class="p"·data-group-id=" | 377 | ··</span><span·class="p"·data-group-id="3372425399-4">[</span><span·class="p"·data-group-id="3372425399-5">{</span><span·class="w">·</span><span·class="ss">'>'</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">'$1'</span><span·class="p">,</span><span·class[·...·truncated·by·diffoscope;·len:·132,·SHA:·3bef046a7ea7ceaf734ea0a93a13df3b288ec8d2f837b069f44ce7b2461b26ce·...·]-4">]</span><span·class="p">,</span><span·class="w"> |
| 378 | ··</span><span·class="p"·data-group-id=" | 378 | ··</span><span·class="p"·data-group-id="3372425399-6">[</span><span·class="p"·data-group-id="3372425399-6">]</span><span·class="p"·data-group-id="3372425399-2">}</span><span·class="p"·data-group-id="3372425399-1">]</span></code></pre><p>Match·an·argument·list·of·three,·where·the·third·argument·is·either·a·tuple |
| 379 | containing·argument·one·and·two,·<em>or</em>·a·list·beginning·with·argument·one·and·two | 379 | containing·argument·one·and·two,·<em>or</em>·a·list·beginning·with·argument·one·and·two |
| 380 | (that·is,·<code·class="inline">[a,b,[a,b,c]]</code>·or·<code·class="inline">[a,b,{a,b}]</code>):</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 380 | (that·is,·<code·class="inline">[a,b,[a,b,c]]</code>·or·<code·class="inline">[a,b,{a,b}]</code>):</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="2225546194-1">[</span><span·class="p"·data-group-id="2225546194-2">{</span><span·class="p"·data-group-id="2225546194-3">[</span><span·class="ss">'$1'</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">'$2'</span><span·cl[·...·truncated·by·diffoscope;·len:·117,·SHA:·8d9aa5f2c5c757b3b8373b78c56d3fafabf9988b587c3e5d08252f5d2e84ef2e·...·]-3">]</span><span·class="p">,</span><span·class="w"> |
| 381 | ··</span><span·class="p"·data-group-id=" | 381 | ··</span><span·class="p"·data-group-id="2225546194-4">[</span><span·class="p"·data-group-id="2225546194-5">{</span><span·class="ss">'orelse'</span><span·class="p">,</span><span·class="w"> |
| 382 | ······</span><span·class="p"·data-group-id=" | 382 | ······</span><span·class="p"·data-group-id="2225546194-6">{</span><span·class="ss">'=:='</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">'$3'</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2225546194-7">{</span><span·class=[·...·truncated·by·diffoscope;·len:·284,·SHA:·6f6beaa400c6470f683c5b8e7bfe8a3bcb7701989a7f3cecb931aa9bc9c58a00·...·]-6">}</span><span·class="p">,</span><span·class="w"> |
| 383 | ······</span><span·class="p"·data-group-id=" | 383 | ······</span><span·class="p"·data-group-id="2225546194-9">{</span><span·class="ss">'and'</span><span·class="p">,</span><span·class="w"> |
| 384 | ········</span><span·class="p"·data-group-id=" | 384 | ········</span><span·class="p"·data-group-id="2225546194-10">{</span><span·class="ss">'=:='</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">'$1'</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2225546194-11">{</span><span·clas[·...·truncated·by·diffoscope;·len:·195,·SHA:·bf5820081642884b584c34af07bf6c31e0b97596d8de9f19329c8d061be3aca0·...·]-10">}</span><span·class="p">,</span><span·class="w"> |
| 385 | ········</span><span·class="p"·data-group-id=" | 385 | ········</span><span·class="p"·data-group-id="2225546194-12">{</span><span·class="ss">'=:='</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">'$2'</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2225546194-13">{</span><span·clas[·...·truncated·by·diffoscope;·len:·537,·SHA:·e34d6a49acf4b89b6a12987406fda949276a7516e08276d13b2be6619cb7443f·...·]-4">]</span><span·class="p">,</span><span·class="w"> |
| 386 | ··</span><span·class="p"·data-group-id=" | 386 | ··</span><span·class="p"·data-group-id="2225546194-15">[</span><span·class="p"·data-group-id="2225546194-15">]</span><span·class="p"·data-group-id="2225546194-2">}</span><span·class="p"·data-group-id="2225546194-1">]</span></code></pre><p>The·above·problem·can·also·be·solved·as·follows:</p><pre>[·...·truncated·by·diffoscope;·len:·411,·SHA:·082a01f279ab53d7b83d5021544369297f4b68b2007451a14bfebb4b8848a1f2·...·]-4">{</span><span·class="ss">'$1'</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">'$2}],·[],·[]}, |
| 387 | ·{['</span><span·class="sc">$1</span><span·class="ss">',·'</span><span·class="sc">$2</span><span·class="ss">',·['</span><span·class="sc">$1</span><span·class="ss">',·'</span><span·class="sc">$2</span><span·class="ss">'·|·'</span><span·class="p">_</span><span·class="err">'</span><span·class="p">]</span><span·class="p">]</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id=" | 387 | ·{['</span><span·class="sc">$1</span><span·class="ss">',·'</span><span·class="sc">$2</span><span·class="ss">',·['</span><span·class="sc">$1</span><span·class="ss">',·'</span><span·class="sc">$2</span><span·class="ss">'·|·'</span><span·class="p">_</span><span·class="err">'</span><span·class="p">]</span><span·class="p">]</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="5417337837-5">[</span><span·class="p"·data-group-id="5417337837-5">]</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="5417337837-6">[</span><span·class="p"·data-group-id="5417337837-6">]</span><span·class="p"·data-group-[·...·truncated·by·diffoscope;·len:·67,·SHA:·76dc8d2bcf0db0aa5675c026ecbeb3c23e237777957b1ebae34a491fc351efdb·...·]-3">]</span></code></pre><p>Match·two·arguments,·where·the·first·is·a·tuple·beginning·with·a·list·that·in |
| 388 | turn·begins·with·the·second·argument·times·two·(that·is,·<code·class="inline">[{[4,x],y},2]</code>·or | 388 | turn·begins·with·the·second·argument·times·two·(that·is,·<code·class="inline">[{[4,x],y},2]</code>·or |
| 389 | <code·class="inline">[{[8],·y,·z},4])</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="467 | 389 | <code·class="inline">[{[8],·y,·z},4])</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="4569749136-1">[</span><span·class="p"·data-group-id="4569749136-2">{</span><span·class="p"·data-group-id="4569749136-3">[</span><span·class="ss">'$1'</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">'$2'</span><span·cla[·...·truncated·by·diffoscope;·len:·1173,·SHA:·097087f8203bf8148d7af0ebceba5ff6a37da4ef63fc556c09c5498cbfc19498·...·]-4">]</span><span·class="p">,</span><span·class="w"> |
| 390 | ··</span><span·class="p"·data-group-id="467 | 390 | ··</span><span·class="p"·data-group-id="4569749136-9">[</span><span·class="p"·data-group-id="4569749136-9">]</span><span·class="p"·data-group-id="4569749136-2">}</span><span·class="p"·data-group-id="4569749136-1">]</span></code></pre><p>Match·three·arguments.·When·all·three·are·equal·and·are·numbers,·append·the |
| 391 | process·dump·to·the·trace·message,·otherwise·let·the·trace·message·be·"as·is", | 391 | process·dump·to·the·trace·message,·otherwise·let·the·trace·message·be·"as·is", |
| 392 | but·set·the·sequential·trace·token·label·to·4711:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 392 | but·set·the·sequential·trace·token·label·to·4711:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="2725574725-1">[</span><span·class="p"·data-group-id="2725574725-2">{</span><span·class="p"·data-group-id="2725574725-3">[</span><span·class="ss">'$1'</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">'$1'</span><span·cl[·...·truncated·by·diffoscope;·len:·117,·SHA:·57c26f27ba283d153be44a9c32486867efc258a107d3726e188e9386ca6a619f·...·]-3">]</span><span·class="p">,</span><span·class="w"> |
| 393 | ··</span><span·class="p"·data-group-id=" | 393 | ··</span><span·class="p"·data-group-id="2725574725-4">[</span><span·class="p"·data-group-id="2725574725-5">{</span><span·class="nb">is_number</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">'$1'</span><span·class="p"·data-group-id="2725574725-5">}</span><span·class[·...·truncated·by·diffoscope;·len:·30,·SHA:·a912aabbaf4ab4f7308c9a0bc1ef4c2050b62ddf25ed565384c5a793fdcba56a·...·]-4">]</span><span·class="p">,</span><span·class="w"> |
| 394 | ··</span><span·class="p"·data-group-id="5494980202-6">[</span><span·class="p"·data-group-id="5494980202-7">{</span><span·class="ss">message</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="5494980202-8">{</span><span·class="ss">process_dump</span><span·class="p"·data-group-id="5494980202-8">}</span><span·class="p"·data-group-id="5494980202-7">}</span><span·class="p"·data-group-id="5494980202-6">]</span><span·class="p"·data-group-id="5494980202-2">}</span><span·class="p">,</span><span·class="w"> | ||
| 395 | ·</span><span·class="p"·data-group-id=" | 394 | ··</span><span·class="p"·data-group-id="2725574725-6">[</span><span·class="p"·data-group-id="2725574725-7">{</span><span·class="ss">message</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2725574725-8">{</span><span·clas[·...·truncated·by·diffoscope;·len:·278,·SHA:·526a4d2448e21b6be980d42436c340b751f25b9d095a36dde8b89d4b2b4bfcb8·...·] |
| 395 | ·</span><span·class="p"·data-group-id="2725574725-9">{</span><span·class="ss">'_'</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2725574725-10">[</span><span·class="p"·data-group-id="2725574725-10">]</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2725574725-11">[</span><span·class="p"·data-group-id="2725574725-12">{</span><span·class="ss">set_seq_token</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">label</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">4711</span><span·class="p"·data-group-id="2725574725-12">}</span><span·class="p"·data-group-id="2725574725-11">]</span><span·class="p"·data-group-id="2725574725-9">}</span><span·class="p"·data-group-id="2725574725-1">]</span></code></pre><p>As·can·be·noted·above,·the·parameter·list·can·be·matched·against·a·single | ||
| 396 | <code·class="inline">MatchVariable</code>·or·an·<code·class="inline">'_'</code>.·To·replace·the·whole·parameter·list·with·a·single | 396 | <code·class="inline">MatchVariable</code>·or·an·<code·class="inline">'_'</code>.·To·replace·the·whole·parameter·list·with·a·single |
| 397 | variable·is·a·special·case.·In·all·other·cases·the·<code·class="inline">MatchHead</code>·must·be·a | 397 | variable·is·a·special·case.·In·all·other·cases·the·<code·class="inline">MatchHead</code>·must·be·a |
| 398 | <em>proper</em>·list.</p><p>Generate·a·trace·message·only·if·the·trace·control·word·is·set·to·1:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 398 | <em>proper</em>·list.</p><p>Generate·a·trace·message·only·if·the·trace·control·word·is·set·to·1:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="6695820878-1">[</span><span·class="p"·data-group-id="6695820878-2">{</span><span·class="ss">'_'</span><span·class="p">,</span><span·class="w"> |
| 399 | ··</span><span·class="p"·data-group-id="1894325442-3">[</span><span·class="p"·data-group-id="1894325442-4">{</span><span·class="ss">'=='</span><span·class="p">,</span><span·class="p"·data-group-id="1894325442-5">{</span><span·class="ss">get_tcw</span><span·class="p"·data-group-id="1894325442-5">}</span><span·class="p">,</span><span·class="p"·data-group-id="1894325442-6">{</span><span·class="ss">const</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">1</span><span·class="p"·data-group-id="1894325442-6">}</span><span·class="p"·data-group-id="1894325442-4">}</span><span·class="p"·data-group-id="1894325442-3">]</span><span·class="p">,</span><span·class="w"> | ||
| 400 | ··</span><span·class="p"·data-group-id="1894325442-7">[</span><span·class="p"·data-group-id="1894325442-7">]</span><span·class="p"·data-group-id="1894325442-2">}</span><span·class="p"·data-group-id="1894325442-1">]</span></code></pre><p>Generate·a·trace·message·only·if·there·is·a·<code·class="inline">seq_trace</code>·token:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="4922183583-1">[</span><span·class="p"·data-group-id="4922183583-2">{</span><span·class="ss">'_'</span><span·class="p">,</span><span·class="w"> | ||
| 401 | ··</span><span·class="p"·data-group-id="4922183583-3">[</span><span·class="p"·data-group-id="4922183583-4">{</span><span·class="ss">'=='</span><span·class="p">,</span><span·class="p"·data-group-id="4922183583-5">{</span><span·class="ss">is_seq_trace</span><span·class="p"·data-group-id="4922183583-5">}</span><span·class="p">,</span><span·class="p"·data-group-id="4922183583-6">{</span><span·class="ss">const</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">1</span><span·class="p"·data-group-id="4922183583-6">}</span><span·class="p"·data-group-id="4922183583-4">}</span><span·class="p"·data-group-id="4922183583-3">]</span><span·class="p">,</span><span·class="w"> | ||
| 402 | ··</span><span·class="p"·data-group-id=" | 399 | ··</span><span·class="p"·data-group-id="6695820878-3">[</span><span·class="p"·data-group-id="6695820878-4">{</span><span·class="ss">'=='</span><span·class="p">,</span><span·class="p"·data-group-id="6695820878-5">{</span><span·class="ss">get_tcw</span><span·class="p"·data-group-id="669582[·...·truncated·by·diffoscope;·len:·394,·SHA:·a0433e1e83a37b490c0919bc8daaf0f5fb87278c8da26dd01cd117223c0b3668·...·] |
| 400 | ··</span><span·class="p"·data-group-id="6695820878-7">[</span><span·class="p"·data-group-id="6695820878-7">]</span><span·class="p"·data-group-id="6695820878-2">}</span><span·class="p"·data-group-id="6695820878-1">]</span></code></pre><p>Generate·a·trace·message·only·if·there·is·a·<code·class="inline">seq_trace</code>·token:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="7875156738-1">[</span><span·class="p"·data-group-id="7875156738-2">{</span><span·class="ss">'_'</span><span·class="p">,</span><span·class="w"> | ||
| 401 | ··</span><span·class="p"·data-group-id="7875156738-3">[</span><span·class="p"·data-group-id="7875156738-4">{</span><span·class="ss">'=='</span><span·class="p">,</span><span·class="p"·data-group-id="7875156738-5">{</span><span·class="ss">is_seq_trace</span><span·class="p"·data-group-id="7875156738-5">}</span><span·class="p">,</span><span·class="p"·data-group-id="7875156738-6">{</span><span·class="ss">const</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">1</span><span·class="p"·data-group-id="7875156738-6">}</span><span·class="p"·data-group-id="7875156738-4">}</span><span·class="p"·data-group-id="7875156738-3">]</span><span·class="p">,</span><span·class="w"> | ||
| 402 | ··</span><span·class="p"·data-group-id="7875156738-7">[</span><span·class="p"·data-group-id="7875156738-7">]</span><span·class="p"·data-group-id="7875156738-2">}</span><span·class="p"·data-group-id="7875156738-1">]</span></code></pre><p>Remove·the·<code·class="inline">'silent'</code>·trace·flag·when·the·first·argument·is·<code·class="inline">'verbose'</code>,·and·add | ||
| 403 | it·when·it·is·<code·class="inline">'silent':</code></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 403 | it·when·it·is·<code·class="inline">'silent':</code></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="4245553114-1">[</span><span·class="p"·data-group-id="4245553114-2">{</span><span·class="ss">'$1'</span><span·class="p">,</span><span·class="w"> |
| 404 | ··</span><span·class="p"·data-group-id=" | 404 | ··</span><span·class="p"·data-group-id="4245553114-3">[</span><span·class="p"·data-group-id="4245553114-4">{</span><span·class="ss">'=='</span><span·class="p">,</span><span·class="p"·data-group-id="4245553114-5">{</span><span·class="nb">hd</span><span·class="p">,</span><span·class="w">·<[·...·truncated·by·diffoscope;·len:·244,·SHA:·7e689bccb35bcb025194771ccf94cbade818fdbb1be1f7c4d9a3947bc839723a·...·]-3">]</span><span·class="p">,</span><span·class="w"> |
| 405 | ··</span><span·class="p"·data-group-id=" | 405 | ··</span><span·class="p"·data-group-id="4245553114-6">[</span><span·class="p"·data-group-id="4245553114-7">{</span><span·class="nb">trace</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4245553114-8">[</span><span·class="ss">silent</span><span·class="p"·data-[·...·truncated·by·diffoscope;·len:·309,·SHA:·da405d03ffeff658b5526c464bfe4f98d223a4728ca69e703f9edb11c236a4bf·...·]-2">}</span><span·class="p">,</span><span·class="w"> |
| 406 | ·</span><span·class="p"·data-group-id=" | 406 | ·</span><span·class="p"·data-group-id="4245553114-10">{</span><span·class="ss">'$1'</span><span·class="p">,</span><span·class="w"> |
| 407 | ··</span><span·class="p"·data-group-id=" | 407 | ··</span><span·class="p"·data-group-id="4245553114-11">[</span><span·class="p"·data-group-id="4245553114-12">{</span><span·class="ss">'=='</span><span·class="p">,</span><span·class="p"·data-group-id="4245553114-13">{</span><span·class="nb">hd</span><span·class="p">,</span><span·class="w"[·...·truncated·by·diffoscope;·len:·248,·SHA:·4279853dd4261479f24de50850741c572fbf24d0852ecff4838013860d9bd181·...·]-11">]</span><span·class="p">,</span><span·class="w"> |
| 408 | ··</span><span·class="p"·data-group-id=" | 408 | ··</span><span·class="p"·data-group-id="4245553114-14">[</span><span·class="p"·data-group-id="4245553114-15">{</span><span·class="nb">trace</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4245553114-16">[</span><span·class="p"·data-group-id="4245553114-16">]<[·...·truncated·by·diffoscope;·len:·630,·SHA:·87fc25d95fc95bde48ec46f7e43b0affd91e77efff1802defcf2fbb4e010c5e6·...·]-2">{</span><span·class="ss">'$1'</span><span·class="p">,</span><span·class="w"> |
| 409 | ··</span><span·class="p"·data-group-id=" | 409 | ··</span><span·class="p"·data-group-id="7661441141-3">[</span><span·class="p"·data-group-id="7661441141-4">{</span><span·class="ss">'=='</span><span·class="p">,</span><span·class="p"·data-group-id="7661441141-5">{</span><span·class="nb">length</span><span·class="p">,</span><span·class="w[·...·truncated·by·diffoscope;·len:·242,·SHA:·821664bbf5f77d1b4ef4797d042d07eded65fed9b961be229784ebc568e50df4·...·]-3">]</span><span·class="p">,</span><span·class="w"> |
| 410 | ··</span><span·class="p"·data-group-id="2277229613-6">[</span><span·class="p"·data-group-id="2277229613-7">{</span><span·class="ss">return_trace</span><span·class="p"·data-group-id="2277229613-7">}</span><span·class="p"·data-group-id="2277229613-6">]</span><span·class="p"·data-group-id="2277229613-2">}</span><span·class="p">,</span><span·class="w"> | ||
| 411 | ·</span><span·class="p"·data-group-id=" | 410 | ··</span><span·class="p"·data-group-id="7661441141-6">[</span><span·class="p"·data-group-id="7661441141-7">{</span><span·class="ss">return_trace</span><span·class="p"·data-group-id="7661441141-7">}</span><span·class="p"·data-group-id="7661441141-6">]</span>[·...·truncated·by·diffoscope;·len:·93,·SHA:·572bfb5fed10bb2b0e1d1b29a7d79bbc945638a88ceaac465c3d38f6a4a1e1df·...·] |
| 411 | ·</span><span·class="p"·data-group-id="7661441141-8">{</span><span·class="ss">'_'</span><span·class="p">,</span><span·class="p"·data-group-id="7661441141-9">[</span><span·class="p"·data-group-id="7661441141-9">]</span><span·class="p">,</span><span·class="p"·data-group-id="7661441141-10">[</span><span·class="p"·data-group-id="7661441141-10">]</span><span·class="p"·data-group-id="7661441141-8">}</span><span·class="p"·data-group-id="7661441141-1">]</span></code></pre><p>Generate·a·trace·message·only·if·the·function·is·of·arity·3·and·the·first | ||
| 412 | argument·is·<code·class="inline">'trace'</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 412 | argument·is·<code·class="inline">'trace'</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="4278483117-1">[</span><span·class="p"·data-group-id="4278483117-2">{</span><span·class="p"·data-group-id="4278483117-3">[</span><span·class="ss">'trace'</span><span·class="p">,</span><span·class="ss">'$2'</span><span·class="p">,</span><span[·...·truncated·by·diffoscope;·len:·72,·SHA:·4d0f933c05af26dc4344121cb46260e08ae084286b5c74ab3eede2cf7b23dcfe·...·]-3">]</span><span·class="p">,</span><span·class="w"> |
| 413 | ··</span><span·class="p"·data-group-id=" | 413 | ··</span><span·class="p"·data-group-id="4278483117-4">[</span><span·class="p"·data-group-id="4278483117-4">]</span><span·class="p">,</span><span·class="w"> |
| 414 | ··</span><span·class="p"·data-group-id=" | 414 | ··</span><span·class="p"·data-group-id="4278483117-5">[</span><span·class="p"·data-group-id="4278483117-5">]</span><span·class="p"·data-group-id="4278483117-2">}</span><span·class="p">,</span><span·class="w"> |
| 415 | ·</span><span·class="p"·data-group-id=" | 415 | ·</span><span·class="p"·data-group-id="4278483117-6">{</span><span·class="ss">'_'</span><span·class="p">,</span><span·class="p"·data-group-id="4278483117-7">[</span><span·class="p"·data-group-id="4278483117-7">]</span><span·class="p">,</span><span·class="p"·data-group-id="4278483117-8">[·...·truncated·by·diffoscope;·len:·155,·SHA:·7235e9457cb351605d3fde01313b15ce3ad3ebcf7339d7d4ed9135cdf1a98956·...·]-1">]</span></code></pre><h2·id="ets-examples"·class="section-heading"> |
| 416 | ··<a·href="#ets-examples"·class="hover-link"> | 416 | ··<a·href="#ets-examples"·class="hover-link"> |
| 417 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 417 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 418 | ··</a> | 418 | ··</a> |
| 419 | ··<span·class="text">ETS·Examples</span> | 419 | ··<span·class="text">ETS·Examples</span> |
| 420 | </h2> | 420 | </h2> |
| 421 | <p>Match·all·objects·in·an·ETS·table,·where·the·first·element·is·the·atom | 421 | <p>Match·all·objects·in·an·ETS·table,·where·the·first·element·is·the·atom |
| 422 | <code·class="inline">'strider'</code>·and·the·tuple·arity·is·3,·and·return·the·whole·object:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 422 | <code·class="inline">'strider'</code>·and·the·tuple·arity·is·3,·and·return·the·whole·object:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="9238239128-1">[</span><span·class="p"·data-group-id="9238239128-2">{</span><span·class="p"·data-group-id="9238239128-3">{</span><span·class="ss">strider</span><span·class="p">,</span><span·class="ss">'_'</span><span·class="p">,</span><span·class="s[·...·truncated·by·diffoscope;·len:·62,·SHA:·b4553c1af156709e4f3b72825659c764a183d641b311bfd5faa3559c98db47f3·...·]-3">}</span><span·class="p">,</span><span·class="w"> |
| 423 | ··</span><span·class="p"·data-group-id=" | 423 | ··</span><span·class="p"·data-group-id="9238239128-4">[</span><span·class="p"·data-group-id="9238239128-4">]</span><span·class="p">,</span><span·class="w"> |
| 424 | ··</span><span·class="p"·data-group-id=" | 424 | ··</span><span·class="p"·data-group-id="9238239128-5">[</span><span·class="ss">'$_'</span><span·class="p"·data-group-id="9238239128-5">]</span><span·class="p"·data-group-id="9238239128-2">}</span><span·class="p"·data-group-id="9238239128-1">]</span></code></pre><p>Match·all·objects·in·an·ETS·table·with·arity·>·1·and·the·first·element·is |
| 425 | 'gandalf',·and·return·element·2:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 425 | 'gandalf',·and·return·element·2:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="3637429461-1">[</span><span·class="p"·data-group-id="3637429461-2">{</span><span·class="ss">'$1'</span><span·class="p">,</span><span·class="w"> |
| 426 | ··</span><span·class="p"·data-group-id=" | 426 | ··</span><span·class="p"·data-group-id="3637429461-3">[</span><span·class="p"·data-group-id="3637429461-4">{</span><span·class="ss">'=='</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">gandalf</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·da[·...·truncated·by·diffoscope;·len:·829,·SHA:·63f66b99905579f974385cfae3782302db08d3c790c6102e2702d1333a0d4dba·...·]1-3">]</span><span·class="p">,</span><span·class="w"> |
| 427 | ··</span><span·class="p"·data-group-id=" | 427 | ··</span><span·class="p"·data-group-id="3637429461-8">[</span><span·class="p"·data-group-id="3637429461-9">{</span><span·class="nb">element</span><span·class="p">,</span><span·class="mi">2</span><span·class="p">,</span><span·class="ss">'$1'</span><span·class="p"·data-group-id="3637429461[·...·truncated·by·diffoscope;·len:·158,·SHA:·bf28f67d942ac4c4f4d671af71348119f3e851ec9e8a9269211183f539e6bb1f·...·]1-1">]</span></code></pre><p>In·this·example,·if·the·first·element·had·been·the·key,·it·is·much·more |
| 428 | efficient·to·match·that·key·in·the·<code·class="inline">MatchHead</code>·part·than·in·the | 428 | efficient·to·match·that·key·in·the·<code·class="inline">MatchHead</code>·part·than·in·the |
| 429 | <code·class="inline">MatchConditions</code>·part.·The·search·space·of·the·tables·is·restricted·with | 429 | <code·class="inline">MatchConditions</code>·part.·The·search·space·of·the·tables·is·restricted·with |
| 430 | regards·to·the·<code·class="inline">MatchHead</code>·so·that·only·objects·with·the·matching·key·are | 430 | regards·to·the·<code·class="inline">MatchHead</code>·so·that·only·objects·with·the·matching·key·are |
| 431 | searched.</p><p>Match·tuples·of·three·elements,·where·the·second·element·is·either·<code·class="inline">'merry'</code>·or | 431 | searched.</p><p>Match·tuples·of·three·elements,·where·the·second·element·is·either·<code·class="inline">'merry'</code>·or |
| 432 | <code·class="inline">'pippin'</code>,·and·return·the·whole·objects:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 432 | <code·class="inline">'pippin'</code>,·and·return·the·whole·objects:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="7033802498-1">[</span><span·class="p"·data-group-id="7033802498-2">{</span><span·class="p"·data-group-id="7033802498-3">{</span><span·class="ss">'_'</span><span·class="p">,</span><span·class="ss">merry</span><span·class="p">,</span><span·class="ss"[·...·truncated·by·diffoscope;·len:·60,·SHA:·8631efef2c6f65098665ffd0ed9bbef639290fa10995d9691b4b2f1ad5aadfb0·...·]-3">}</span><span·class="p">,</span><span·class="w"> |
| 433 | ··</span><span·class="p"·data-group-id=" | 433 | ··</span><span·class="p"·data-group-id="7033802498-4">[</span><span·class="p"·data-group-id="7033802498-4">]</span><span·class="p">,</span><span·class="w"> |
| 434 | ··</span><span·class="p"·data-group-id=" | 434 | ··</span><span·class="p"·data-group-id="7033802498-5">[</span><span·class="ss">'$_'</span><span·class="p"·data-group-id="7033802498-5">]</span><span·class="p"·data-group-id="7033802498-2">}</span><span·class="p">,</span><span·class="w"> |
| 435 | ·</span><span·class="p"·data-group-id=" | 435 | ·</span><span·class="p"·data-group-id="7033802498-6">{</span><span·class="p"·data-group-id="7033802498-7">{</span><span·class="ss">'_'</span><span·class="p">,</span><span·class="ss">pippin</span><span·class="p">,</span><span·class="ss">'_'</span><span·class="p"·data-group-id="70[·...·truncated·by·diffoscope;·len:·8,·SHA:·40257697fc696ecae373a4cc43e97db5496f5bb62f08f558ee2edd9caf91fcaf·...·]-7">}</span><span·class="p">,</span><span·class="w"> |
| 436 | ··</span><span·class="p"·data-group-id=" | 436 | ··</span><span·class="p"·data-group-id="7033802498-8">[</span><span·class="p"·data-group-id="7033802498-8">]</span><span·class="p">,</span><span·class="w"> |
| 437 | ··</span><span·class="p"·data-group-id=" | 437 | ··</span><span·class="p"·data-group-id="7033802498-9">[</span><span·class="ss">'$_'</span><span·class="p"·data-group-id="7033802498-9">]</span><span·class="p"·data-group-id="7033802498-6">}</span><span·class="p"·data-group-id="7033802498-1">]</span></code></pre><p>Function·<a·href="../../../lib/stdlib-7.0/doc/html/ets.html#test_ms/2"><code·class="inline">ets:test_ms/2</code></a>·can·be·useful·for·testing·complicated·ETS·matches.</p> |
| 438 | </div> | 438 | </div> |
| 439 | <div·class="bottom-actions"·id="bottom-actions"> | 439 | <div·class="bottom-actions"·id="bottom-actions"> |
| 440 | ··<div·class="bottom-actions-item"> | 440 | ··<div·class="bottom-actions-item"> |
| 441 | ······<a·href="time_correction.html"·class="bottom-actions-button"·rel="prev"> | 441 | ······<a·href="time_correction.html"·class="bottom-actions-button"·rel="prev"> |
| 442 | ········<span·class="subheader"> | 442 | ········<span·class="subheader"> |
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| 477 | ······<p·class="built-using"> | 477 | ······<p·class="built-using"> |
| 478 | ········Built·using | 478 | ········Built·using |
| 479 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 479 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 480 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 480 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 481 | ······</p> | 481 | ······</p> |
| 482 | <p>Copyright·©·1996-202 | 482 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 483 | ····</footer> | 483 | ····</footer> |
| 484 | ··</div> | 484 | ··</div> |
| 485 | </main> | 485 | </main> |
| 486 | </div> | 486 | </div> |
| 487 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 487 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 488 | ··<script> | 488 | ··<script> |
| 489 | ··let·initialized·=·false; | 489 | ··let·initialized·=·false; |
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| 139 | </h3> | 139 | </h3> |
| 140 | <ul><li><p>ETS·tables·with·more·than·2·billion·keys·are·now·supported.</p><p>Own·Id:·OTP-19144·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8589"·title="">PR-8589</a></p></li><li><p>The·zlib·library·included·in·Erlang/OTP·has·been·updated·to·version·1.3.1.</p><p>Own·Id:·OTP-19259·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8862"·title="">PR-8862</a></p></li><li><p><a·href="../../../doc/system/embedded.html#to_erl"><code·class="inline">to_erl</code></a>·no·longer·clears·the·screen·when·attaching·to·a·<a·href="run_erl_cmd.html"><code·class="inline">run_erl</code></a>·session.</p><p>Own·Id:·OTP-19263·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8943"·title="">PR-8943</a></p></li><li><p>The·size·of·an·atom·in·the·Erlang·source·code·was·limited·to·255·bytes·in·previous·releases,·meaning·that·an·atom·containing·only·emojis·could·contain·only·63·emojis.</p><p>While·atoms·are·still·only·allowed·to·contain·255·characters,·the·number·of·bytes·is·no·longer·limited.</p><p>External·tools·that·parse·the·<code·class="inline">AtU8</code>·chunk·of·a·BEAM·file·directly·need·to·be·updated.·Tools·that·use·<a·href="../../../lib/stdlib-7.0/doc/html/beam_lib.html#chunks/2"><code·class="inline">beam_lib:chunks(Beam,·[atoms])</code></a>·to·read·the·atom·table·will·continue·to·work.</p><p><strong><em>·POTENTIAL·INCOMPATIBILITY·</em></strong></p><p>Own·Id:·OTP-19285·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8913"·title="">PR-8913</a></p></li><li><p>Fixed·a·bug·where·<a·href="erlc_cmd.html"><code·class="inline">erlc</code></a>·would·crash·if·its·path·contained·spaces.</p><p>Own·Id:·OTP-19295·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8937"·title="">PR-8937</a></p></li><li><p>The·<a·href="erl_cmd.html#noshell"><code·class="inline">-noshell</code></a>·mode·has·been·updated·to·read·data·lazily·from·standard·input.·Before·this·fix·any·data·would·be·read·greedily·which·meant·that·Erlang·could·consume·data·not·meant·for·it.·It·also·meant·that·in·order·for·<a·href="../../../lib/stdlib-7.0/doc/html/shell.html#start_interactive/0"><code·class="inline">shell:start_interactive/0</code></a>·to·work·on·Windows·an·API·that·did·not·support·reading·of·Unicode·characters·had·to·be·used.</p><p>Own·Id:·OTP-19313·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8962"·title="">PR-8962</a>,·<a·href="https://github.com/erlang/otp/issues/8113"·title="">GH-8113</a></p></li><li><p>The·literals·chunk·in·BEAM·is·no·longer·compressed,·resulting·in·slightly·smaller·BEAM·files·when·a·BEAM·file·is·stripped·using·<a·href="../../../lib/stdlib-7.0/doc/html/beam_lib.html#strip_files/1"><code·class="inline">beam_lib:strip_files/1</code></a>.</p><p>This·is·a·potential·incompatibility·for·tools·that·read·and·interpret·the·contents·of·the·literal·chunk.·One·way·to·update·such·tools·to·work·with·the·new·format·is·to·retrieve·the·chunk·using·<a·href="../../../lib/stdlib-7.0/doc/html/beam_lib.html#chunks/2"><code·class="inline">beam_lib:chunks(Beam,·[literals])</code></a>.</p><p><strong><em>·POTENTIAL·INCOMPATIBILITY·</em></strong></p><p>Own·Id:·OTP-19323·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/8967"·title="">GH-8967</a>,·<a·href="https://github.com/erlang/otp/pull/8988"·title="">PR-8988</a></p></li><li><p>Fixed·<a·href="erlang.html#localtime_to_universaltime/2"><code·class="inline">erlang:localtime_to_universaltime/2</code></a>·with·<code·class="inline">IsDST</code>·set·to·<code·class="inline">true</code>·and·a·timezone·without·daylight·saving·(for·example·<code·class="inline">UTC</code>)·to·assume·that·the·provided·localtime·does·not·have·DST.·This·has·always·been·the·behaviour,·but·glibc·versions·after·2.37·changed·it·so·that·the·behavior·in·Erlang·also·changed.</p><p>Own·Id:·OTP-19453·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9207"·title="">PR-9207</a></p></li><li><p>Support·for·the·<code·class="inline">TZ</code>·environment·variable·has·been·added·on·Windows.·Before·this·change·only·the·time·zone·configured·in·the·OS·was·ever·used.</p><p>Own·Id:·OTP-19454·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9207"·title="">PR-9207</a></p></li><li><p>Suppressed·various·warnings·when·building·the·emulator·with·recent·versions·of·GCC</p><p>Own·Id:·OTP-19488·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/9413"·title="">GH-9413</a>,·<a·href="https://github.com/erlang/otp/pull/9417"·title="">PR-9417</a></p></li><li><p>Fixed·a·bug·in·re:run·and·re:compile·where·the·pattern·parameter·would·be·read·incorrectly·if·it·was·a·sub-binary.</p><p>Own·Id:·OTP-19507·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9478"·title="">PR-9478</a>,·<a·href="https://github.com/erlang/otp/issues/9438"·title="">GH-9438</a></p></li><li><p>Fixed·a·broken·makefile·rule·that·made·it·so·that··<code·class="inline">O2</code>·and·<code·class="inline">-O2</code>·could·not·be·part·of·the·directory·path·when·building·Erlang/OTP.·Bug·has·been·present·since·R11B·released·2006.</p><p>Own·Id:·OTP-19518·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9488"·title="">PR-9488</a>,·<a·href="https://github.com/erlang/otp/issues/9487"·title="">GH-9487</a></p></li><li><p>Fixed·the·index·types·of·modules·<code·class="inline">atomics</code>·and·<code·class="inline">counters</code>·from·<code·class="inline">integer()</code>·to·<code·class="inline">pos_integer()</code>,·which·is·more·correct.</p><p>Own·Id:·OTP-19532·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9538"·title="">PR-9538</a></p></li><li><p>Fix·<a·href="erl_cmd.html"><code·class="inline">erl</code></a>·flags·<code·class="inline">+Q</code>,·<code·class="inline">+P</code>·and·<code·class="inline">+t</code>·to·not·allow·values·greater·than·4294975487.·Before·this·fix,·the·runtime·would·either·truncate·the·value·or·crash·depending·on·which·value·was·given.</p><p>Own·Id:·OTP-19594·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9671"·title="">PR-9671</a>,·<a·href="https://github.com/erlang/otp/issues/9668"·title="">GH-9668</a></p></li><li><p>The·socket·option·names·for·built-in·socket·options·in·the·module·<code·class="inline">socket</code>·has·been·cleaned·up.</p><p>Now,·for·known·socket·options,·it·is·only·the·canonical·protocol·names·that·are·allowed·such·as·<code·class="inline">ip</code>·for·the·socket·option·<code·class="inline">{ip,recvtos}</code>.··Previously,·due·to·being·a·protocol·alias;·<code·class="inline">{'IP',recvtos}</code>·was·also·allowed,·as·was·the·incorrect·<code·class="inline">{hopopt,recvtos}</code>·because·the·protocol·<code·class="inline">hopopt</code>·on·Linux·has·the·same·protocol·number·as·<code·class="inline">ip</code>.</p><p>So,·to·reduce·confusion,·all·enumerated·protocol·names·with·the·same·number,·are·not·allowed·for·the·known·protocol·options,·only·the·canonical·name.</p><p><strong><em>·POTENTIAL·INCOMPATIBILITY·</em></strong></p><p>Own·Id:·OTP-19615·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9718"·title="">PR-9718</a></p></li><li><p>On·windows,·socket:sendv·could·incorrectly·return·{ok,·integer()}·on·Windows.</p><p>Own·Id:·OTP-19617·Aux·Id:·OTP-19482</p></li></ul><h3·id="improvements-and-new-features"·class="section-heading"> | 140 | <ul><li><p>ETS·tables·with·more·than·2·billion·keys·are·now·supported.</p><p>Own·Id:·OTP-19144·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8589"·title="">PR-8589</a></p></li><li><p>The·zlib·library·included·in·Erlang/OTP·has·been·updated·to·version·1.3.1.</p><p>Own·Id:·OTP-19259·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8862"·title="">PR-8862</a></p></li><li><p><a·href="../../../doc/system/embedded.html#to_erl"><code·class="inline">to_erl</code></a>·no·longer·clears·the·screen·when·attaching·to·a·<a·href="run_erl_cmd.html"><code·class="inline">run_erl</code></a>·session.</p><p>Own·Id:·OTP-19263·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8943"·title="">PR-8943</a></p></li><li><p>The·size·of·an·atom·in·the·Erlang·source·code·was·limited·to·255·bytes·in·previous·releases,·meaning·that·an·atom·containing·only·emojis·could·contain·only·63·emojis.</p><p>While·atoms·are·still·only·allowed·to·contain·255·characters,·the·number·of·bytes·is·no·longer·limited.</p><p>External·tools·that·parse·the·<code·class="inline">AtU8</code>·chunk·of·a·BEAM·file·directly·need·to·be·updated.·Tools·that·use·<a·href="../../../lib/stdlib-7.0/doc/html/beam_lib.html#chunks/2"><code·class="inline">beam_lib:chunks(Beam,·[atoms])</code></a>·to·read·the·atom·table·will·continue·to·work.</p><p><strong><em>·POTENTIAL·INCOMPATIBILITY·</em></strong></p><p>Own·Id:·OTP-19285·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8913"·title="">PR-8913</a></p></li><li><p>Fixed·a·bug·where·<a·href="erlc_cmd.html"><code·class="inline">erlc</code></a>·would·crash·if·its·path·contained·spaces.</p><p>Own·Id:·OTP-19295·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8937"·title="">PR-8937</a></p></li><li><p>The·<a·href="erl_cmd.html#noshell"><code·class="inline">-noshell</code></a>·mode·has·been·updated·to·read·data·lazily·from·standard·input.·Before·this·fix·any·data·would·be·read·greedily·which·meant·that·Erlang·could·consume·data·not·meant·for·it.·It·also·meant·that·in·order·for·<a·href="../../../lib/stdlib-7.0/doc/html/shell.html#start_interactive/0"><code·class="inline">shell:start_interactive/0</code></a>·to·work·on·Windows·an·API·that·did·not·support·reading·of·Unicode·characters·had·to·be·used.</p><p>Own·Id:·OTP-19313·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8962"·title="">PR-8962</a>,·<a·href="https://github.com/erlang/otp/issues/8113"·title="">GH-8113</a></p></li><li><p>The·literals·chunk·in·BEAM·is·no·longer·compressed,·resulting·in·slightly·smaller·BEAM·files·when·a·BEAM·file·is·stripped·using·<a·href="../../../lib/stdlib-7.0/doc/html/beam_lib.html#strip_files/1"><code·class="inline">beam_lib:strip_files/1</code></a>.</p><p>This·is·a·potential·incompatibility·for·tools·that·read·and·interpret·the·contents·of·the·literal·chunk.·One·way·to·update·such·tools·to·work·with·the·new·format·is·to·retrieve·the·chunk·using·<a·href="../../../lib/stdlib-7.0/doc/html/beam_lib.html#chunks/2"><code·class="inline">beam_lib:chunks(Beam,·[literals])</code></a>.</p><p><strong><em>·POTENTIAL·INCOMPATIBILITY·</em></strong></p><p>Own·Id:·OTP-19323·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/8967"·title="">GH-8967</a>,·<a·href="https://github.com/erlang/otp/pull/8988"·title="">PR-8988</a></p></li><li><p>Fixed·<a·href="erlang.html#localtime_to_universaltime/2"><code·class="inline">erlang:localtime_to_universaltime/2</code></a>·with·<code·class="inline">IsDST</code>·set·to·<code·class="inline">true</code>·and·a·timezone·without·daylight·saving·(for·example·<code·class="inline">UTC</code>)·to·assume·that·the·provided·localtime·does·not·have·DST.·This·has·always·been·the·behaviour,·but·glibc·versions·after·2.37·changed·it·so·that·the·behavior·in·Erlang·also·changed.</p><p>Own·Id:·OTP-19453·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9207"·title="">PR-9207</a></p></li><li><p>Support·for·the·<code·class="inline">TZ</code>·environment·variable·has·been·added·on·Windows.·Before·this·change·only·the·time·zone·configured·in·the·OS·was·ever·used.</p><p>Own·Id:·OTP-19454·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9207"·title="">PR-9207</a></p></li><li><p>Suppressed·various·warnings·when·building·the·emulator·with·recent·versions·of·GCC</p><p>Own·Id:·OTP-19488·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/9413"·title="">GH-9413</a>,·<a·href="https://github.com/erlang/otp/pull/9417"·title="">PR-9417</a></p></li><li><p>Fixed·a·bug·in·re:run·and·re:compile·where·the·pattern·parameter·would·be·read·incorrectly·if·it·was·a·sub-binary.</p><p>Own·Id:·OTP-19507·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9478"·title="">PR-9478</a>,·<a·href="https://github.com/erlang/otp/issues/9438"·title="">GH-9438</a></p></li><li><p>Fixed·a·broken·makefile·rule·that·made·it·so·that··<code·class="inline">O2</code>·and·<code·class="inline">-O2</code>·could·not·be·part·of·the·directory·path·when·building·Erlang/OTP.·Bug·has·been·present·since·R11B·released·2006.</p><p>Own·Id:·OTP-19518·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9488"·title="">PR-9488</a>,·<a·href="https://github.com/erlang/otp/issues/9487"·title="">GH-9487</a></p></li><li><p>Fixed·the·index·types·of·modules·<code·class="inline">atomics</code>·and·<code·class="inline">counters</code>·from·<code·class="inline">integer()</code>·to·<code·class="inline">pos_integer()</code>,·which·is·more·correct.</p><p>Own·Id:·OTP-19532·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9538"·title="">PR-9538</a></p></li><li><p>Fix·<a·href="erl_cmd.html"><code·class="inline">erl</code></a>·flags·<code·class="inline">+Q</code>,·<code·class="inline">+P</code>·and·<code·class="inline">+t</code>·to·not·allow·values·greater·than·4294975487.·Before·this·fix,·the·runtime·would·either·truncate·the·value·or·crash·depending·on·which·value·was·given.</p><p>Own·Id:·OTP-19594·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9671"·title="">PR-9671</a>,·<a·href="https://github.com/erlang/otp/issues/9668"·title="">GH-9668</a></p></li><li><p>The·socket·option·names·for·built-in·socket·options·in·the·module·<code·class="inline">socket</code>·has·been·cleaned·up.</p><p>Now,·for·known·socket·options,·it·is·only·the·canonical·protocol·names·that·are·allowed·such·as·<code·class="inline">ip</code>·for·the·socket·option·<code·class="inline">{ip,recvtos}</code>.··Previously,·due·to·being·a·protocol·alias;·<code·class="inline">{'IP',recvtos}</code>·was·also·allowed,·as·was·the·incorrect·<code·class="inline">{hopopt,recvtos}</code>·because·the·protocol·<code·class="inline">hopopt</code>·on·Linux·has·the·same·protocol·number·as·<code·class="inline">ip</code>.</p><p>So,·to·reduce·confusion,·all·enumerated·protocol·names·with·the·same·number,·are·not·allowed·for·the·known·protocol·options,·only·the·canonical·name.</p><p><strong><em>·POTENTIAL·INCOMPATIBILITY·</em></strong></p><p>Own·Id:·OTP-19615·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9718"·title="">PR-9718</a></p></li><li><p>On·windows,·socket:sendv·could·incorrectly·return·{ok,·integer()}·on·Windows.</p><p>Own·Id:·OTP-19617·Aux·Id:·OTP-19482</p></li></ul><h3·id="improvements-and-new-features"·class="section-heading"> |
| 141 | ··<a·href="#improvements-and-new-features"·class="hover-link"> | 141 | ··<a·href="#improvements-and-new-features"·class="hover-link"> |
| 142 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 142 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 143 | ··</a> | 143 | ··</a> |
| 144 | ··<span·class="text">Improvements·and·New·Features</span> | 144 | ··<span·class="text">Improvements·and·New·Features</span> |
| 145 | </h3> | 145 | </h3> |
| 146 | <ul><li><p>Functionality·making·it·possible·for·processes·to·enable·reception·of·<a·href="../../../doc/system/ref_man_processes.html#priority-messages">priority·messages</a>·has·been·introduced·in·accordance·with·<a·href="https://www.erlang.org/eeps/eep-0076">EEP·76</a>.</p><p>Own·Id:·OTP-19198·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9269"·title="">PR-9269</a>,·<a·href="https://github.com/erlang/otp/pull/9519"·title="">PR-9519</a>,·<a·href="https://github.com/erlang/otp/pull/9590"·title="">PR-9590</a></p></li><li><p>The·<a·href="../../../lib/kernel-10.3/doc/html/trace.html#system/3"><code·class="inline">trace:system/3</code></a>·function·has·been·added.·It·has·a·similar·interface·as·<a·href="erlang.html#system_monitor/2"><code·class="inline">erlang:system_monitor/2</code></a>·but·it·also·supports·trace·sessions.</p><p>Own·Id:·OTP-19271·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8660"·title="">PR-8660</a></p></li><li><p>Added·support·for·<code·class="inline">SIGWINCH</code>,·<code·class="inline">SIGCONT</code>,·and·<code·class="inline">SIGINFO</code>·signals·to·<a·href="../../../lib/kernel-10.3/doc/html/os.html#set_signal/2"><code·class="inline">os:set_signal/2</code></a>·where·available.</p><p>Own·Id:·OTP-19278·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8887"·title="">PR-8887</a>,·<a·href="https://github.com/erlang/otp/pull/8938"·title="">PR-8938</a></p></li><li><p>The·<a·href="erl_cmd.html#noshell"><code·class="inline">erl·-noshell</code></a>·mode·has·been·updated·to·have·two·sub·modes·called·<code·class="inline">raw</code>·and·<code·class="inline">cooked</code>,·where·<code·class="inline">cooked</code>·is·the·old·default·behaviour·and·<code·class="inline">raw</code>·can·be·used·to·bypass·the·line-editing·support·of·the·native·terminal.·Using·<code·class="inline">raw</code>·mode·it·is·possible·to·read·keystrokes·as·they·happen·without·the·user·having·to·press·Enter.·Also,·the·<code·class="inline">raw</code>·mode·does·not·echo·the·typed·characters·to·stdout.·An·example·of·how·to·create·a·tic-tac-toe·game·using·this·mechanism·is·included·in·<a·href="../../../lib/stdlib-7.0/doc/html/terminal_interface.html">the·documentation</a>.</p><p>Own·Id:·OTP-19314·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8962"·title="">PR-8962</a>,·<a·href="https://github.com/erlang/otp/issues/8037"·title="">GH-8037</a></p></li><li><p><a·href="https://www.erlang.org/eeps/eep-0069">EEP-69:·Nominal·Types</a>·has·been·implemented.·As·a·side·effect,·nominal·types·can·encode·opaque·types.·We·changed·all·opaque-handling·logic·and·improved·opaque·warnings·in·Dialyzer.</p><p>All·existing·Erlang·type·systems·are·structural:·two·types·are·seen·as·equivalent·if·their·structures·are·the·same.·Type·comparisons·are·based·on·the·structures·of·the·types,·not·on·how·the·user·explicitly·defines·them.·For·example,·in·the·following·example,·<code·class="inline">meter()</code>·and·<code·class="inline">foot()</code>·are·equivalent.·The·two·types·can·be·used·interchangeably.·Neither·of·them·differ·from·the·basic·type·<code·class="inline">integer()</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">type</span><span·class="w">·</span><span·class="nf">meter</span><span·class="p"·data-group-id=" | 146 | <ul><li><p>Functionality·making·it·possible·for·processes·to·enable·reception·of·<a·href="../../../doc/system/ref_man_processes.html#priority-messages">priority·messages</a>·has·been·introduced·in·accordance·with·<a·href="https://www.erlang.org/eeps/eep-0076">EEP·76</a>.</p><p>Own·Id:·OTP-19198·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9269"·title="">PR-9269</a>,·<a·href="https://github.com/erlang/otp/pull/9519"·title="">PR-9519</a>,·<a·href="https://github.com/erlang/otp/pull/9590"·title="">PR-9590</a></p></li><li><p>The·<a·href="../../../lib/kernel-10.3/doc/html/trace.html#system/3"><code·class="inline">trace:system/3</code></a>·function·has·been·added.·It·has·a·similar·interface·as·<a·href="erlang.html#system_monitor/2"><code·class="inline">erlang:system_monitor/2</code></a>·but·it·also·supports·trace·sessions.</p><p>Own·Id:·OTP-19271·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8660"·title="">PR-8660</a></p></li><li><p>Added·support·for·<code·class="inline">SIGWINCH</code>,·<code·class="inline">SIGCONT</code>,·and·<code·class="inline">SIGINFO</code>·signals·to·<a·href="../../../lib/kernel-10.3/doc/html/os.html#set_signal/2"><code·class="inline">os:set_signal/2</code></a>·where·available.</p><p>Own·Id:·OTP-19278·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8887"·title="">PR-8887</a>,·<a·href="https://github.com/erlang/otp/pull/8938"·title="">PR-8938</a></p></li><li><p>The·<a·href="erl_cmd.html#noshell"><code·class="inline">erl·-noshell</code></a>·mode·has·been·updated·to·have·two·sub·modes·called·<code·class="inline">raw</code>·and·<code·class="inline">cooked</code>,·where·<code·class="inline">cooked</code>·is·the·old·default·behaviour·and·<code·class="inline">raw</code>·can·be·used·to·bypass·the·line-editing·support·of·the·native·terminal.·Using·<code·class="inline">raw</code>·mode·it·is·possible·to·read·keystrokes·as·they·happen·without·the·user·having·to·press·Enter.·Also,·the·<code·class="inline">raw</code>·mode·does·not·echo·the·typed·characters·to·stdout.·An·example·of·how·to·create·a·tic-tac-toe·game·using·this·mechanism·is·included·in·<a·href="../../../lib/stdlib-7.0/doc/html/terminal_interface.html">the·documentation</a>.</p><p>Own·Id:·OTP-19314·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8962"·title="">PR-8962</a>,·<a·href="https://github.com/erlang/otp/issues/8037"·title="">GH-8037</a></p></li><li><p><a·href="https://www.erlang.org/eeps/eep-0069">EEP-69:·Nominal·Types</a>·has·been·implemented.·As·a·side·effect,·nominal·types·can·encode·opaque·types.·We·changed·all·opaque-handling·logic·and·improved·opaque·warnings·in·Dialyzer.</p><p>All·existing·Erlang·type·systems·are·structural:·two·types·are·seen·as·equivalent·if·their·structures·are·the·same.·Type·comparisons·are·based·on·the·structures·of·the·types,·not·on·how·the·user·explicitly·defines·them.·For·example,·in·the·following·example,·<code·class="inline">meter()</code>·and·<code·class="inline">foot()</code>·are·equivalent.·The·two·types·can·be·used·interchangeably.·Neither·of·them·differ·from·the·basic·type·<code·class="inline">integer()</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">type</span><span·class="w">·</span><span·class="nf">meter</span><span·class="p"·data-group-id="5852050560-1">(</span><span·class="p"·data-group-id="5852050560-1">)</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="5852050560-2">(</span><[·...·truncated·by·diffoscope;·len:·40,·SHA:·2a22c54785468975c8071c1a38fcf0bd7405e86847069db2b704eeff26a14b4f·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 147 | </span><span·class="p">-</span><span·class="na">type</span><span·class="w">·</span><span·class="nf">foot</span><span·class="p"·data-group-id=" | 147 | </span><span·class="p">-</span><span·class="na">type</span><span·class="w">·</span><span·class="nf">foot</span><span·class="p"·data-group-id="5852050560-3">(</span><span·class="p"·data-group-id="5852050560-3">)</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="5852050560-4">(</span><[·...·truncated·by·diffoscope;·len:·1061,·SHA:·76528516a84da2c58fc945b7351028de5d2112b65f3967d2c5735830032ba297·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 148 | </span><span·class="p">-</span><span·class="na">nominal</span><span·class="w">·</span><span·class="nf">foot</span><span·class="p"·data-group-id=" | 148 | </span><span·class="p">-</span><span·class="na">nominal</span><span·class="w">·</span><span·class="nf">foot</span><span·class="p"·data-group-id="8337109875-3">(</span><span·class="p"·data-group-id="8337109875-3">)</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="8337109875-4">(</span><[·...·truncated·by·diffoscope;·len:·40,·SHA:·9941cbc79a0cb9633a8cb3fe66a75b842449f41b56173116022487068d6b93cd·...·]-4">)</span><span·class="p">.</span></code></pre><p>More·nominal·type-checking·rules·can·be·found·in·the·EEP.·It·is·worth·noting·that·most·work·for·adding·nominal·types·and·type-checking·is·in·<code·class="inline">erl_types.erl</code>.·The·rest·are·changes·that·removed·the·previous·opaque·type-checking,·and·added·an·improved·version·of·it·using·nominal·type-checking·with·reworked·warnings.</p><p>Backwards·compatibility·for·opaque·type-checking·is·not·preserved·by·this·PR.·Previous·opaque·warnings·can·appear·with·slightly·different·wordings.·A·new·kind·of·opaque·warning·<code·class="inline">opaque_union</code>·is·added,·together·with·a·Dialyzer·option·<code·class="inline">no_opaque_union</code>·to·turn·this·kind·of·warnings·off.</p><p>Own·Id:·OTP-19364·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9079"·title="">PR-9079</a></p></li><li><p>Two·BIFs·have·been·added·to·the·<a·href="erlang.html"><code·class="inline">erlang</code></a>·module.·</p><p><a·href="erlang.html#processes_iterator/0"><code·class="inline">erlang:processes_iterator/0</code></a>·returns·a·process·iterator·that·can·be·used·to |
| 149 | iterate·through·the·process·table.</p><p><code·class="inline">erlang:process_next/1</code>·takes·in·a·process·iterator·and·returns·a·2-tuple,·consisting·of·a·process·identifier·and·a·new·process·iterator.·When·the·process·iterator·runs·out·of·processes·in·the·process·table,·<code·class="inline">none</code>·will·be·returned.</p><p>Using·these·BIFs·to·scan·the·processes·scales·better·than·using·<a·href="erlang.html#processes/0"><code·class="inline">erlang:processes/0</code></a>,·at·the·cost·of·giving·less·consistency·guarantees.·Process·identifiers·returned·from·consecutive·calls·of·<code·class="inline">erlang:process_next/1</code>·may·not·be·a·consistent·snapshot·of·all·elements·existing·in·the·table·during·any·of·the·calls.·A·process·identifier·is·only·guaranteed·to·be·returned·from·a·call·to·<a·href="erlang.html#processes_next/1"><code·class="inline">erlang:processes_next/1</code></a>·if·it·was·alive·before·the·call·to·<a·href="erlang.html#processes_iterator/0"><code·class="inline">erlang:processes_iterator/0</code></a>·and·was·still·alive·when·<a·href="erlang.html#processes_next/1"><code·class="inline">erlang:processes_next/1</code></a>·returned·<code·class="inline">none</code>.</p><p>Own·Id:·OTP-19369·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9129"·title="">PR-9129</a></p></li><li><p>Improved·open·debug·for·gen_tcp_socket·(connect·and·listen)·and·gen_udp_socket·(open).</p><p>Own·Id:·OTP-19386</p></li><li><p>Module·<a·href="../../../lib/stdlib-7.0/doc/html/re.html"><code·class="inline">re</code></a>·has·been·updated·to·use·PCRE2,·which·is·mostly·backward·compatible·with·PCRE.</p><p>The·most·noticeable·incompatibilities·are</p><ul><li>The·default·character·encoding·is·pure·ASCII·and·not·Latin1.·Unicode·support | 149 | iterate·through·the·process·table.</p><p><code·class="inline">erlang:process_next/1</code>·takes·in·a·process·iterator·and·returns·a·2-tuple,·consisting·of·a·process·identifier·and·a·new·process·iterator.·When·the·process·iterator·runs·out·of·processes·in·the·process·table,·<code·class="inline">none</code>·will·be·returned.</p><p>Using·these·BIFs·to·scan·the·processes·scales·better·than·using·<a·href="erlang.html#processes/0"><code·class="inline">erlang:processes/0</code></a>,·at·the·cost·of·giving·less·consistency·guarantees.·Process·identifiers·returned·from·consecutive·calls·of·<code·class="inline">erlang:process_next/1</code>·may·not·be·a·consistent·snapshot·of·all·elements·existing·in·the·table·during·any·of·the·calls.·A·process·identifier·is·only·guaranteed·to·be·returned·from·a·call·to·<a·href="erlang.html#processes_next/1"><code·class="inline">erlang:processes_next/1</code></a>·if·it·was·alive·before·the·call·to·<a·href="erlang.html#processes_iterator/0"><code·class="inline">erlang:processes_iterator/0</code></a>·and·was·still·alive·when·<a·href="erlang.html#processes_next/1"><code·class="inline">erlang:processes_next/1</code></a>·returned·<code·class="inline">none</code>.</p><p>Own·Id:·OTP-19369·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9129"·title="">PR-9129</a></p></li><li><p>Improved·open·debug·for·gen_tcp_socket·(connect·and·listen)·and·gen_udp_socket·(open).</p><p>Own·Id:·OTP-19386</p></li><li><p>Module·<a·href="../../../lib/stdlib-7.0/doc/html/re.html"><code·class="inline">re</code></a>·has·been·updated·to·use·PCRE2,·which·is·mostly·backward·compatible·with·PCRE.</p><p>The·most·noticeable·incompatibilities·are</p><ul><li>The·default·character·encoding·is·pure·ASCII·and·not·Latin1.·Unicode·support |
| 150 | is·still·available·with·options·<code·class="inline">unicode</code>·and·<code·class="inline">ucp</code>.</li><li>Options·<code·class="inline">bsr_anycrlf</code>,·<code·class="inline">bsr_unicode</code>·and·<code·class="inline">{newline,_}</code>·are·only·set·when·a | 150 | is·still·available·with·options·<code·class="inline">unicode</code>·and·<code·class="inline">ucp</code>.</li><li>Options·<code·class="inline">bsr_anycrlf</code>,·<code·class="inline">bsr_unicode</code>·and·<code·class="inline">{newline,_}</code>·are·only·set·when·a |
| 151 | regex·is·compiled·and·cannot·be·changed·at·matching·for·precompiled·regex.</li></ul><p><strong><em>·POTENTIAL·INCOMPATIBILITY·</em></strong></p><p>Own·Id:·OTP-19431·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9299"·title="">PR-9299</a>,·<a·href="https://github.com/erlang/otp/pull/9610"·title="">PR-9610</a></p></li><li><p>When·booting·the·runtime·system·on·a·32-bit·computer·with·a·single·core,·the·boot·code·will·try·to·minimize·the·peak·memory·use·by·disabling·parallel·loading·of·BEAM·files.</p><p>Own·Id:·OTP-19450·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9342"·title="">PR-9342</a></p></li><li><p>A·<code·class="inline">socket</code>·option·<code·class="inline">{otp,select_read}</code>·has·been·added·that·enables·keeping·a·socket·in·the·VM·select/poll·set·between·calls·to·recv·functions.</p><p>This·increases·throughput·by·reducing·the·number·of·calls·to·said·functions.</p><p>Own·Id:·OTP-19451·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9344"·title="">PR-9344</a></p></li><li><p><code·class="inline">erlc</code>·will·now·write·compiler·warnings·and·errors·to·standard·error,·instead·of·standard·output,·in·common·with·other·language·compilers.</p><p>Own·Id:·OTP-19460·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/9255"·title="">GH-9255</a>,·<a·href="https://github.com/erlang/otp/pull/9363"·title="">PR-9363</a></p></li><li><p>Fixed·the·Windows·build·to·always·include·<code·class="inline">.pdb</code>·files·for·all·DLLs·and·executables·to·help·with·debugging.</p><p>Own·Id:·OTP-19465·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9229"·title="">PR-9229</a></p></li><li><p>Improve·the·naming·of·the·(internal)·esock·mutex(es).·It·is·now·possible·to·configure·(as·in·autoconf)·the·use·of·simple·names·for·the·esock·mutex(es).</p><p>Own·Id:·OTP-19472·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9388"·title="">PR-9388</a></p></li><li><p>An·optimization·for·appending·0·bits·to·a·binary·was·removed·in·patch·releases·for·OTP·versions·25,·26,·and·27.·This·optimization·has·been·reintroduced·in·Erlang/OTP·28.</p><p>Own·Id:·OTP-19473·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9396"·title="">PR-9396</a>,·<a·href="https://github.com/erlang/otp/pull/8697"·title="">PR-8697</a></p></li><li><p>Fixed·licenses·in·files·and·added·ORT·curations·to·the·following·apps:·otp,·eldap,·erl_interface,·eunit,·parsetools,·stdlib,·syntax_tools,·and·ERTS.</p><p>Own·Id:·OTP-19478·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9376"·title="">PR-9376</a>,·<a·href="https://github.com/erlang/otp/pull/9402"·title="">PR-9402</a>,·<a·href="https://github.com/erlang/otp/pull/9819"·title="">PR-9819</a></p></li><li><p>When·using·<a·href="erl_nif.html#enif_select_read"><code·class="inline">enif_select_read</code></a>·(or·<a·href="erl_nif.html#enif_select"><code·class="inline">enif_select</code></a>·with·<code·class="inline">ERL_NIF_SELECT_READ</code>)·on·systems·with·kernel·polling·enabled·(that·is·most·Unix·systems),·file·descriptors·that·are·always·re-enabled·as·soon·as·they·trigger·are·now·part·of·a·specialized·pollset·just·as·<a·href="erl_driver.html#driver_select"><code·class="inline">driver_select</code></a>.·This·reduces·the·CPU·usage·in·such·scenarios·as·the·erts·does·not·have·to·re-insert·the·FD·everytime·it·it·triggered.·As·a·result·of·this·optimization·<a·href="../../../lib/kernel-10.3/doc/html/socket.html"><code·class="inline">socket</code></a>·based·reading·uses·a·lot·less·CPU·and·achieves·a·higher·throughput.</p><p>Own·Id:·OTP-19479·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9275"·title="">PR-9275</a></p></li><li><p>Added·support·for·compiling·Erlang/OTP·for·Windows·on·ARM64.</p><p>Own·Id:·OTP-19480·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8734"·title="">PR-8734</a></p></li><li><p>The·Windows·installer·no·longer·creates·the·<code·class="inline">erl.ini</code>·file,·making·installations·redistributable.</p><p>Own·Id:·OTP-19481·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9330"·title="">PR-9330</a></p></li><li><p>Added·erlang:hibernate/0,·which·hibernates·a·process·without·discarding·the·stack.</p><p>Own·Id:·OTP-19503·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9406"·title="">PR-9406</a></p></li><li><p>The·asmjit·library·(used·by·BeamJIT)·has·been·updated·to·version·029075b84bf0161a761beb63e6eda519a29020db.</p><p>Own·Id:·OTP-19509·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9495"·title="">PR-9495</a></p></li><li><p>When·compiling·C/C++·code·on·Unix·systems,·the·compiler·hardening·flags·suggested·by·the·<a·href="https://github.com/ossf/wg-best-practices-os-developers/blob/main/docs/Compiler-Hardening-Guides/Compiler-Options-Hardening-Guide-for-C-and-C%2B%2B.md">Open·Source·Security·Foundation</a>·are·now·enabled·by·default.·To·disable·them,·pass·<code·class="inline">--disable-security-hardening-flags</code>·to·<code·class="inline">configure</code>.</p><p>Own·Id:·OTP-19519·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9441"·title="">PR-9441</a></p></li><li><p>If·a·process·being·suspended·using·<a·href="erlang.html#suspend_process/2"><code·class="inline">erlang:suspend_process()</code></a> | 151 | regex·is·compiled·and·cannot·be·changed·at·matching·for·precompiled·regex.</li></ul><p><strong><em>·POTENTIAL·INCOMPATIBILITY·</em></strong></p><p>Own·Id:·OTP-19431·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9299"·title="">PR-9299</a>,·<a·href="https://github.com/erlang/otp/pull/9610"·title="">PR-9610</a></p></li><li><p>When·booting·the·runtime·system·on·a·32-bit·computer·with·a·single·core,·the·boot·code·will·try·to·minimize·the·peak·memory·use·by·disabling·parallel·loading·of·BEAM·files.</p><p>Own·Id:·OTP-19450·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9342"·title="">PR-9342</a></p></li><li><p>A·<code·class="inline">socket</code>·option·<code·class="inline">{otp,select_read}</code>·has·been·added·that·enables·keeping·a·socket·in·the·VM·select/poll·set·between·calls·to·recv·functions.</p><p>This·increases·throughput·by·reducing·the·number·of·calls·to·said·functions.</p><p>Own·Id:·OTP-19451·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9344"·title="">PR-9344</a></p></li><li><p><code·class="inline">erlc</code>·will·now·write·compiler·warnings·and·errors·to·standard·error,·instead·of·standard·output,·in·common·with·other·language·compilers.</p><p>Own·Id:·OTP-19460·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/9255"·title="">GH-9255</a>,·<a·href="https://github.com/erlang/otp/pull/9363"·title="">PR-9363</a></p></li><li><p>Fixed·the·Windows·build·to·always·include·<code·class="inline">.pdb</code>·files·for·all·DLLs·and·executables·to·help·with·debugging.</p><p>Own·Id:·OTP-19465·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9229"·title="">PR-9229</a></p></li><li><p>Improve·the·naming·of·the·(internal)·esock·mutex(es).·It·is·now·possible·to·configure·(as·in·autoconf)·the·use·of·simple·names·for·the·esock·mutex(es).</p><p>Own·Id:·OTP-19472·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9388"·title="">PR-9388</a></p></li><li><p>An·optimization·for·appending·0·bits·to·a·binary·was·removed·in·patch·releases·for·OTP·versions·25,·26,·and·27.·This·optimization·has·been·reintroduced·in·Erlang/OTP·28.</p><p>Own·Id:·OTP-19473·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9396"·title="">PR-9396</a>,·<a·href="https://github.com/erlang/otp/pull/8697"·title="">PR-8697</a></p></li><li><p>Fixed·licenses·in·files·and·added·ORT·curations·to·the·following·apps:·otp,·eldap,·erl_interface,·eunit,·parsetools,·stdlib,·syntax_tools,·and·ERTS.</p><p>Own·Id:·OTP-19478·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9376"·title="">PR-9376</a>,·<a·href="https://github.com/erlang/otp/pull/9402"·title="">PR-9402</a>,·<a·href="https://github.com/erlang/otp/pull/9819"·title="">PR-9819</a></p></li><li><p>When·using·<a·href="erl_nif.html#enif_select_read"><code·class="inline">enif_select_read</code></a>·(or·<a·href="erl_nif.html#enif_select"><code·class="inline">enif_select</code></a>·with·<code·class="inline">ERL_NIF_SELECT_READ</code>)·on·systems·with·kernel·polling·enabled·(that·is·most·Unix·systems),·file·descriptors·that·are·always·re-enabled·as·soon·as·they·trigger·are·now·part·of·a·specialized·pollset·just·as·<a·href="erl_driver.html#driver_select"><code·class="inline">driver_select</code></a>.·This·reduces·the·CPU·usage·in·such·scenarios·as·the·erts·does·not·have·to·re-insert·the·FD·everytime·it·it·triggered.·As·a·result·of·this·optimization·<a·href="../../../lib/kernel-10.3/doc/html/socket.html"><code·class="inline">socket</code></a>·based·reading·uses·a·lot·less·CPU·and·achieves·a·higher·throughput.</p><p>Own·Id:·OTP-19479·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9275"·title="">PR-9275</a></p></li><li><p>Added·support·for·compiling·Erlang/OTP·for·Windows·on·ARM64.</p><p>Own·Id:·OTP-19480·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8734"·title="">PR-8734</a></p></li><li><p>The·Windows·installer·no·longer·creates·the·<code·class="inline">erl.ini</code>·file,·making·installations·redistributable.</p><p>Own·Id:·OTP-19481·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9330"·title="">PR-9330</a></p></li><li><p>Added·erlang:hibernate/0,·which·hibernates·a·process·without·discarding·the·stack.</p><p>Own·Id:·OTP-19503·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9406"·title="">PR-9406</a></p></li><li><p>The·asmjit·library·(used·by·BeamJIT)·has·been·updated·to·version·029075b84bf0161a761beb63e6eda519a29020db.</p><p>Own·Id:·OTP-19509·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9495"·title="">PR-9495</a></p></li><li><p>When·compiling·C/C++·code·on·Unix·systems,·the·compiler·hardening·flags·suggested·by·the·<a·href="https://github.com/ossf/wg-best-practices-os-developers/blob/main/docs/Compiler-Hardening-Guides/Compiler-Options-Hardening-Guide-for-C-and-C%2B%2B.md">Open·Source·Security·Foundation</a>·are·now·enabled·by·default.·To·disable·them,·pass·<code·class="inline">--disable-security-hardening-flags</code>·to·<code·class="inline">configure</code>.</p><p>Own·Id:·OTP-19519·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9441"·title="">PR-9441</a></p></li><li><p>If·a·process·being·suspended·using·<a·href="erlang.html#suspend_process/2"><code·class="inline">erlang:suspend_process()</code></a> 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| 152 | currently·is·waiting·in·a·<code·class="inline">receive·...·after</code>·expression,·the·timer·for·the·timeout·will·now·also·be | 152 | currently·is·waiting·in·a·<code·class="inline">receive·...·after</code>·expression,·the·timer·for·the·timeout·will·now·also·be |
| 153 | suspended·until·the·process·is·resumed.</p><p><strong><em>·POTENTIAL·INCOMPATIBILITY·</em></strong></p><p>Own·Id:·OTP-19536·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8670"·title="">PR-8670</a></p></li><li><p>A·test·module·for·TLS·distribution·over·<code·class="inline">socket</code>·has·been·implemented.</p><p>Own·Id:·OTP-19539·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9511"·title="">PR-9511</a></p></li><li><p>Upgrade·pcre2·to·10.45</p><p>Own·Id:·OTP-19541·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9582"·title="">PR-9582</a></p></li><li><p>The·<code·class="inline">+R</code>·emulator·options·has·been·removed.·It·has·had·any·effect·since·Erlang/OTP·R9.</p><p>Own·Id:·OTP-19551·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9608"·title="">PR-9608</a></p></li><li><p>The·license·and·copyright·header·has·changed·format·to·include·an·<code·class="inline">SPDX-License-Identifier</code>.·At·the·same·time,·most·files·have·been·updated·to·follow·a·uniform·standard·for·license·headers.</p><p>Own·Id:·OTP-19575·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9670"·title="">PR-9670</a></p></li><li><p>Increase·the·default·inet-driver·buffer·size(s).·Also·introduce·kernel·parameters·for·UDP·and·SCTP·to·change·the·sizes·when·creating·(those)·sockets.</p><p>Own·Id:·OTP-19576</p></li><li><p>Add·<a·href="erl_cmd.html#%2BJPperfdirectory"><code·class="inline">+JPperfdirectory·<dir></code></a>·for·specifying·which·directory·Erlang·should·place·perf·symbol·information·files.</p><p>Own·Id:·OTP-19589·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9639"·title="">PR-9639</a>,·<a·href="https://github.com/erlang/otp/issues/9500"·title="">GH-9500</a></p></li><li><p>Allow·multiple·static·nifs·to·be·part·of·the·same·archive.·See·the·<a·href="erl_nif.html#initialization">NIF·documentation</a>·for·details.</p><p>Own·Id:·OTP-19590·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9625"·title="">PR-9625</a></p></li><li><p>Various·improvements·reducing·lock·contention·on·run·queues·due·to·task·stealing.</p><p>Own·Id:·OTP-19591·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9594"·title="">PR-9594</a></p></li><li><p>The·new·implementation·has·the·same·behavior·as·the·previous·one.·The·newer·compilers·already·have·native·support·for·FP16,·so·this·implementation·is·only·relevant·for·older·compilers.·For·this·reason,·the·new·implementation·has·not·been·tested·for·speed.</p><p>Own·Id:·OTP-19603·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9735"·title="">PR-9735</a></p></li><li><p>An··<strong>experimental</strong>·API·for·a·native·debugger·has·been·added.·The·main·components·are·the·following:</p><ul><li><p>A·new·compiler·option·<code·class="inline">beam_debug_info</code>·for·the·Erlang·compiler.·When·given,·most·optimizations·are·disabled·and·debug·information·suitable·for·the·native·debugger·are·added·to·generated·BEAM·files.</p></li><li><p>A·new·<code·class="inline">+D</code>·emulator·flag.·When·given,·the·VM·becomes·"debuggable",·which·means·that·when·modules·that·been·compiled·with·the·<code·class="inline">beam_debug_info</code>·option·are·loaded,·the·code·is·instrumented·so·that·one·can·enable·and·disable·breakpoints·on·executable·lines.</p></li><li><p>An·experimental·<code·class="inline">erl_debugger</code>·module·with·a·new·debugging·API.·Essentially,·it·allows·a·single,·local,·process·to·be·registered·as·the·"debugger"·process·for·the·node.·This·process·is·the·one·that·will·receive·messages·notifying·that·a·process·hit·a·breakpoint.·This·way,·the·front-end·implementation·of·a·debugger·(such·as·<a·href="https://github.com/WhatsApp/edb">edb·from·WhatApp</a>)·can·be·decoupled·from·OTP.</p></li><li><p>The·<code·class="inline">erl_debugger</code>·module·also·exposes·new·BIFs·to·inspect·<code·class="inline">X</code>·and·<code·class="inline">Y</code>·registers·of·a·suspended·process.·Together·with·new·code-information·BIFs,·this·let's·a·debugger·show·the·values·of·variables·in·scope·for·a·suspended·process.</p></li></ul><p>Own·Id:·OTP-19609·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8670"·title="">PR-8670</a>,·<a·href="https://github.com/erlang/otp/pull/9334"·title="">PR-9334</a>,·<a·href="https://github.com/erlang/otp/pull/9604"·title="">PR-9604</a></p></li><li><p>Update·internal·<code·class="inline">ryu</code>·implementation·to·use·latest·version.·The·new·version·is·a·little·bit·faster·in·some·scenarios.·<code·class="inline">ryu</code>·is·used·by·<a·href="erlang.html#float_to_list/1"><code·class="inline">float_to_list/1</code></a>·and·similar·functions·to·convert·floats·to·strings.</p><p>Own·Id:·OTP-19613·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9733"·title="">PR-9733</a></p></li><li><p>Update·of·MD5·implementation·from·OpenSSL·version·3.1.4·to·3.5.</p><p>Own·Id:·OTP-19614·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9775"·title="">PR-9775</a></p></li><li><p>Small·optimization·in·binary_to_term·by·not·allocating·an·unnecessary·large·native·stack·frame.</p><p>Own·Id:·OTP-19618·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9759"·title="">PR-9759</a>,·<a·href="https://github.com/erlang/otp/pull/9809"·title="">PR-9809</a></p></li></ul><h2·id="erts-15-2-7"·class="section-heading"> | 153 | suspended·until·the·process·is·resumed.</p><p><strong><em>·POTENTIAL·INCOMPATIBILITY·</em></strong></p><p>Own·Id:·OTP-19536·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8670"·title="">PR-8670</a></p></li><li><p>A·test·module·for·TLS·distribution·over·<code·class="inline">socket</code>·has·been·implemented.</p><p>Own·Id:·OTP-19539·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9511"·title="">PR-9511</a></p></li><li><p>Upgrade·pcre2·to·10.45</p><p>Own·Id:·OTP-19541·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9582"·title="">PR-9582</a></p></li><li><p>The·<code·class="inline">+R</code>·emulator·options·has·been·removed.·It·has·had·any·effect·since·Erlang/OTP·R9.</p><p>Own·Id:·OTP-19551·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9608"·title="">PR-9608</a></p></li><li><p>The·license·and·copyright·header·has·changed·format·to·include·an·<code·class="inline">SPDX-License-Identifier</code>.·At·the·same·time,·most·files·have·been·updated·to·follow·a·uniform·standard·for·license·headers.</p><p>Own·Id:·OTP-19575·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9670"·title="">PR-9670</a></p></li><li><p>Increase·the·default·inet-driver·buffer·size(s).·Also·introduce·kernel·parameters·for·UDP·and·SCTP·to·change·the·sizes·when·creating·(those)·sockets.</p><p>Own·Id:·OTP-19576</p></li><li><p>Add·<a·href="erl_cmd.html#%2BJPperfdirectory"><code·class="inline">+JPperfdirectory·<dir></code></a>·for·specifying·which·directory·Erlang·should·place·perf·symbol·information·files.</p><p>Own·Id:·OTP-19589·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9639"·title="">PR-9639</a>,·<a·href="https://github.com/erlang/otp/issues/9500"·title="">GH-9500</a></p></li><li><p>Allow·multiple·static·nifs·to·be·part·of·the·same·archive.·See·the·<a·href="erl_nif.html#initialization">NIF·documentation</a>·for·details.</p><p>Own·Id:·OTP-19590·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9625"·title="">PR-9625</a></p></li><li><p>Various·improvements·reducing·lock·contention·on·run·queues·due·to·task·stealing.</p><p>Own·Id:·OTP-19591·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9594"·title="">PR-9594</a></p></li><li><p>The·new·implementation·has·the·same·behavior·as·the·previous·one.·The·newer·compilers·already·have·native·support·for·FP16,·so·this·implementation·is·only·relevant·for·older·compilers.·For·this·reason,·the·new·implementation·has·not·been·tested·for·speed.</p><p>Own·Id:·OTP-19603·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9735"·title="">PR-9735</a></p></li><li><p>An··<strong>experimental</strong>·API·for·a·native·debugger·has·been·added.·The·main·components·are·the·following:</p><ul><li><p>A·new·compiler·option·<code·class="inline">beam_debug_info</code>·for·the·Erlang·compiler.·When·given,·most·optimizations·are·disabled·and·debug·information·suitable·for·the·native·debugger·are·added·to·generated·BEAM·files.</p></li><li><p>A·new·<code·class="inline">+D</code>·emulator·flag.·When·given,·the·VM·becomes·"debuggable",·which·means·that·when·modules·that·been·compiled·with·the·<code·class="inline">beam_debug_info</code>·option·are·loaded,·the·code·is·instrumented·so·that·one·can·enable·and·disable·breakpoints·on·executable·lines.</p></li><li><p>An·experimental·<code·class="inline">erl_debugger</code>·module·with·a·new·debugging·API.·Essentially,·it·allows·a·single,·local,·process·to·be·registered·as·the·"debugger"·process·for·the·node.·This·process·is·the·one·that·will·receive·messages·notifying·that·a·process·hit·a·breakpoint.·This·way,·the·front-end·implementation·of·a·debugger·(such·as·<a·href="https://github.com/WhatsApp/edb">edb·from·WhatApp</a>)·can·be·decoupled·from·OTP.</p></li><li><p>The·<code·class="inline">erl_debugger</code>·module·also·exposes·new·BIFs·to·inspect·<code·class="inline">X</code>·and·<code·class="inline">Y</code>·registers·of·a·suspended·process.·Together·with·new·code-information·BIFs,·this·let's·a·debugger·show·the·values·of·variables·in·scope·for·a·suspended·process.</p></li></ul><p>Own·Id:·OTP-19609·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8670"·title="">PR-8670</a>,·<a·href="https://github.com/erlang/otp/pull/9334"·title="">PR-9334</a>,·<a·href="https://github.com/erlang/otp/pull/9604"·title="">PR-9604</a></p></li><li><p>Update·internal·<code·class="inline">ryu</code>·implementation·to·use·latest·version.·The·new·version·is·a·little·bit·faster·in·some·scenarios.·<code·class="inline">ryu</code>·is·used·by·<a·href="erlang.html#float_to_list/1"><code·class="inline">float_to_list/1</code></a>·and·similar·functions·to·convert·floats·to·strings.</p><p>Own·Id:·OTP-19613·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9733"·title="">PR-9733</a></p></li><li><p>Update·of·MD5·implementation·from·OpenSSL·version·3.1.4·to·3.5.</p><p>Own·Id:·OTP-19614·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9775"·title="">PR-9775</a></p></li><li><p>Small·optimization·in·binary_to_term·by·not·allocating·an·unnecessary·large·native·stack·frame.</p><p>Own·Id:·OTP-19618·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9759"·title="">PR-9759</a>,·<a·href="https://github.com/erlang/otp/pull/9809"·title="">PR-9809</a></p></li></ul><h2·id="erts-15-2-7"·class="section-heading"> 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| 249 | <ul><li><p><a·href="../../../lib/kernel-10.3/doc/html/gen_sctp.html#peeloff/2"><code·class="inline">gen_sctp:peeloff/2</code></a>·has·been·fixed·to·inherit·socket·options·to·the·peeled·off·socket·more·like·<a·href="../../../lib/kernel-10.3/doc/html/gen_tcp.html#accept/1"><code·class="inline">gen_tcp:accept/1</code></a>,·for·example·the·options·<code·class="inline">tos</code>·or·<code·class="inline">tclass</code>.</p><p>When·setting·SCTP·options·that·are·unsupported·on·the·platform,·some·should·be·silently·ignored,·but·a·bug·caused·the·option·parsing·to·derail·so·the·options·after·could·bail·out·and·cause·an·error·instead.··This·has·been·fixed.</p><p>Own·Id:·OTP-19225·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8789"·title="">PR-8789</a></p></li><li><p>Fixed·a·bug·where·Erlang·would·corrupt·the·terminal·settings·if·stdin·was·a·TTY·but·stdout·was·not.</p><p>Own·Id:·OTP-19232·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8794"·title="">PR-8794</a>,·<a·href="https://github.com/erlang/otp/issues/8487"·title="">GH-8487</a></p></li><li><p>Fixed·a·bug·in·the·non-JIT·VM·when·loading·a·NIF·over·a·function·that·is·already·traced·by·more·than·one·session.·This·caused·a·VM·crash.·This·bug·has·existed·since·OTP-27.0,·where·multiple·trace·sessions·were·introduced.</p><p>Own·Id:·OTP-19248·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8856"·title="">PR-8856</a></p></li><li><p>Fixed·a·bug·where·the·loading·of·modules·with·extremely·large·binary·construction·instructions·crashed·the·emulator·on·AArch64.</p><p>Own·Id:·OTP-19261·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/8815"·title="">GH-8815</a>,·<a·href="https://github.com/erlang/otp/pull/8816"·title="">PR-8816</a></p></li><li><p><a·href="../../../lib/kernel-10.3/doc/html/inet.html#getifaddrs/1"><code·class="inline">inet:getifaddrs/0,1</code></a>·is·improved·when·using | 249 | <ul><li><p><a·href="../../../lib/kernel-10.3/doc/html/gen_sctp.html#peeloff/2"><code·class="inline">gen_sctp:peeloff/2</code></a>·has·been·fixed·to·inherit·socket·options·to·the·peeled·off·socket·more·like·<a·href="../../../lib/kernel-10.3/doc/html/gen_tcp.html#accept/1"><code·class="inline">gen_tcp:accept/1</code></a>,·for·example·the·options·<code·class="inline">tos</code>·or·<code·class="inline">tclass</code>.</p><p>When·setting·SCTP·options·that·are·unsupported·on·the·platform,·some·should·be·silently·ignored,·but·a·bug·caused·the·option·parsing·to·derail·so·the·options·after·could·bail·out·and·cause·an·error·instead.··This·has·been·fixed.</p><p>Own·Id:·OTP-19225·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8789"·title="">PR-8789</a></p></li><li><p>Fixed·a·bug·where·Erlang·would·corrupt·the·terminal·settings·if·stdin·was·a·TTY·but·stdout·was·not.</p><p>Own·Id:·OTP-19232·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8794"·title="">PR-8794</a>,·<a·href="https://github.com/erlang/otp/issues/8487"·title="">GH-8487</a></p></li><li><p>Fixed·a·bug·in·the·non-JIT·VM·when·loading·a·NIF·over·a·function·that·is·already·traced·by·more·than·one·session.·This·caused·a·VM·crash.·This·bug·has·existed·since·OTP-27.0,·where·multiple·trace·sessions·were·introduced.</p><p>Own·Id:·OTP-19248·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8856"·title="">PR-8856</a></p></li><li><p>Fixed·a·bug·where·the·loading·of·modules·with·extremely·large·binary·construction·instructions·crashed·the·emulator·on·AArch64.</p><p>Own·Id:·OTP-19261·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/8815"·title="">GH-8815</a>,·<a·href="https://github.com/erlang/otp/pull/8816"·title="">PR-8816</a></p></li><li><p><a·href="../../../lib/kernel-10.3/doc/html/inet.html#getifaddrs/1"><code·class="inline">inet:getifaddrs/0,1</code></a>·is·improved·when·using |
| 250 | inet_backend·=·socket.</p><p>Own·Id:·OTP-19264</p></li><li><p><a·href="../../../lib/stdlib-7.0/doc/html/win32reg.html#value/2"><code·class="inline">win32reg:value/2</code></a>·will·no·longer·crash·the·emulator·when·the·value·is·an·unterminated·REG_SZ·of·size·0.</p><p>Own·Id:·OTP-19283·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/8903"·title="">GH-8903</a>,·<a·href="https://github.com/erlang/otp/pull/8912"·title="">PR-8912</a></p></li><li><p><code·class="inline">Makefile</code>·dependency·generation·on·Windows·in·WSL·2·has·been·corrected.</p><p>Own·Id:·OTP-19300·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8955"·title="">PR-8955</a></p></li><li><p>Fix·lock·order·violation·if·a·NIF·monitor·<code·class="inline">down</code>·callback·calls·<code·class="inline">enif_whereis_pid</code>.·Would·cause·debug·emulator·to·crash·but·could·potentially·lead·to·deadlocks·in·optimized·emulator.</p><p>Own·Id:·OTP-19330·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/8983"·title="">GH-8983</a>,·<a·href="https://github.com/erlang/otp/pull/9008"·title="">PR-9008</a></p></li><li><p>Fixed·compilation·faults·when·compiling·using·<code·class="inline">--enable-vm-probes</code>.</p><p>Own·Id:·OTP-19333</p></li><li><p>Fixed·<code·class="inline">erl_nif.h</code>·on·Windows·to·compile·when·gcc·or·clang·is·used.</p><p>Own·Id:·OTP-19341·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9016"·title="">PR-9016</a></p></li><li><p>Fixed·a·minor·issue·in·the·JIT·debug·information·that·confused·tools·like·GDB·and·perf.</p><p>Own·Id:·OTP-19362·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9003"·title="">PR-9003</a></p></li></ul><h3·id="improvements-and-new-features-1"·class="section-heading"> | 250 | inet_backend·=·socket.</p><p>Own·Id:·OTP-19264</p></li><li><p><a·href="../../../lib/stdlib-7.0/doc/html/win32reg.html#value/2"><code·class="inline">win32reg:value/2</code></a>·will·no·longer·crash·the·emulator·when·the·value·is·an·unterminated·REG_SZ·of·size·0.</p><p>Own·Id:·OTP-19283·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/8903"·title="">GH-8903</a>,·<a·href="https://github.com/erlang/otp/pull/8912"·title="">PR-8912</a></p></li><li><p><code·class="inline">Makefile</code>·dependency·generation·on·Windows·in·WSL·2·has·been·corrected.</p><p>Own·Id:·OTP-19300·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8955"·title="">PR-8955</a></p></li><li><p>Fix·lock·order·violation·if·a·NIF·monitor·<code·class="inline">down</code>·callback·calls·<code·class="inline">enif_whereis_pid</code>.·Would·cause·debug·emulator·to·crash·but·could·potentially·lead·to·deadlocks·in·optimized·emulator.</p><p>Own·Id:·OTP-19330·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/8983"·title="">GH-8983</a>,·<a·href="https://github.com/erlang/otp/pull/9008"·title="">PR-9008</a></p></li><li><p>Fixed·compilation·faults·when·compiling·using·<code·class="inline">--enable-vm-probes</code>.</p><p>Own·Id:·OTP-19333</p></li><li><p>Fixed·<code·class="inline">erl_nif.h</code>·on·Windows·to·compile·when·gcc·or·clang·is·used.</p><p>Own·Id:·OTP-19341·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9016"·title="">PR-9016</a></p></li><li><p>Fixed·a·minor·issue·in·the·JIT·debug·information·that·confused·tools·like·GDB·and·perf.</p><p>Own·Id:·OTP-19362·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9003"·title="">PR-9003</a></p></li></ul><h3·id="improvements-and-new-features-1"·class="section-heading"> |
| 251 | ··<a·href="#improvements-and-new-features-1"·class="hover-link"> | 251 | ··<a·href="#improvements-and-new-features-1"·class="hover-link"> |
| 252 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 252 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 253 | ··</a> | 253 | ··</a> |
| 254 | ··<span·class="text">Improvements·and·New·Features</span> | 254 | ··<span·class="text">Improvements·and·New·Features</span> |
| 255 | </h3> | 255 | </h3> |
| 256 | <ul><li><p>Improved·documentation·of·<a·href="time_correction.html#timers">timers</a>.</p><p>Own·Id:·OTP-19360·Aux·Id:·ERIERL-1149,·<a·href="https://github.com/erlang/otp/pull/9062"·title="">PR-9062</a></p></li><li><p>The·label·for·a·process·can·now·be·retrieved·also·using·<code·class="inline">process_info(Pid,·label)</code>·in·addition·to·<a·href="../../../lib/stdlib-7.0/doc/html/proc_lib.html#get_label/1"><code·class="inline">proc_lib:get_label/1</code></a>.</p><p>This·new·option·is·useful·when·one·wants·to·retrieve·more·than·one·process·info·item.·For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">process_info</span><span·class="p"·data-group-id="86 | 256 | <ul><li><p>Improved·documentation·of·<a·href="time_correction.html#timers">timers</a>.</p><p>Own·Id:·OTP-19360·Aux·Id:·ERIERL-1149,·<a·href="https://github.com/erlang/otp/pull/9062"·title="">PR-9062</a></p></li><li><p>The·label·for·a·process·can·now·be·retrieved·also·using·<code·class="inline">process_info(Pid,·label)</code>·in·addition·to·<a·href="../../../lib/stdlib-7.0/doc/html/proc_lib.html#get_label/1"><code·class="inline">proc_lib:get_label/1</code></a>.</p><p>This·new·option·is·useful·when·one·wants·to·retrieve·more·than·one·process·info·item.·For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">process_info</span><span·class="p"·data-group-id="2860459717-1">(</span><span·class="n">Pid</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2860459717-2">[</span><span·class="ss">label</span><span·class="p">,</span><span·class="ss">registered_name</span><span·class="p"[·...·truncated·by·diffoscope;·len:·78,·SHA:·5e147b5f6a1e407f419fdb67f0be863075d7c3fdd631b747879be94ae45315d4·...·]7-1">)</span></code></pre><p>Own·Id:·OTP-19373·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9108"·title="">PR-9108</a></p></li></ul><h2·id="erts-15-1-3"·class="section-heading"> |
| 257 | ··<a·href="#erts-15-1-3"·class="hover-link"> | 257 | ··<a·href="#erts-15-1-3"·class="hover-link"> |
| 258 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 258 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 259 | ··</a> | 259 | ··</a> |
| 260 | ··<span·class="text">Erts·15.1.3</span> | 260 | ··<span·class="text">Erts·15.1.3</span> |
| 261 | </h2> | 261 | </h2> |
| 262 | <h3·id="fixed-bugs-and-malfunctions-9"·class="section-heading"> | 262 | <h3·id="fixed-bugs-and-malfunctions-9"·class="section-heading"> |
| 263 | ··<a·href="#fixed-bugs-and-malfunctions-9"·class="hover-link"> | 263 | ··<a·href="#fixed-bugs-and-malfunctions-9"·class="hover-link"> |
| Offset 297, 16 lines modified | Offset 297, 16 lines modified | ||
| 297 | </h2> | 297 | </h2> |
| 298 | <h3·id="fixed-bugs-and-malfunctions-12"·class="section-heading"> | 298 | <h3·id="fixed-bugs-and-malfunctions-12"·class="section-heading"> |
| 299 | ··<a·href="#fixed-bugs-and-malfunctions-12"·class="hover-link"> | 299 | ··<a·href="#fixed-bugs-and-malfunctions-12"·class="hover-link"> |
| 300 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 300 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 301 | ··</a> | 301 | ··</a> |
| 302 | ··<span·class="text">Fixed·Bugs·and·Malfunctions</span> | 302 | ··<span·class="text">Fixed·Bugs·and·Malfunctions</span> |
| 303 | </h3> | 303 | </h3> |
| 304 | <ul><li><p>The·<code·class="inline">erl·-man·example</code>·has·been·corrected·to·not·consider·values·set·in·<code·class="inline">ERL_ZFLAGS</code>·and·stop·parsing·arguments·when·a·<code·class="inline">--</code>·is·encountered.</p><p>Own·Id:·OTP-19098·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8478"·title="">PR-8478</a>,·<a·href="https://github.com/erlang/otp/issues/8477"·title="">GH-8477</a></p></li><li><p>Compiler·warnings·for··Windows·I/O·back-end·have·been·silenced.</p><p>Own·Id:·OTP-19113</p></li><li><p>Bugs·related·to·<code·class="inline">return_to</code>·trace·have·been·fixed.·It·did·not·work·for·more·than·once·trace·session·and·it·did·sometimes·not·trigger·for·exceptions.</p><p>Own·Id:·OTP-19122</p></li><li><p>Potential·deadlocks·while·writing·a·crash·dump·have·been·eliminated.</p><p>Own·Id:·OTP-19133·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8521"·title="">PR-8521</a>,·<a·href="https://github.com/erlang/otp/issues/8498"·title="">GH-8498</a></p></li><li><p>When·loading·a·damaged·or·too·old·BEAM·file,·the·runtime·system·could·crash.</p><p>Own·Id:·OTP-19153·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8623"·title="">PR-8623</a></p></li><li><p>A·scheduler·thread·could·get·stuck·when·deleting·a·memory·allocator·carrier·when·adjacent·carriers·were·deleted·and/or·inserted·simultaneously·by·other·schedulers.·This·in·turn·could·cause·the·other·schedulers·to·get·stuck·as·well.</p><p>Own·Id:·OTP-19154·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/8613"·title="">GH-8613</a>,·<a·href="https://github.com/erlang/otp/pull/8627"·title="">PR-8627</a></p></li><li><p>Statistics·for·number·of·carriers·in·a·shared·pool·after·calling·<code·class="inline">instrument:allocations</code>·or·<code·class="inline">instrument:carriers</code>·are·now·correct.·Also,·a·potential·bug·in·carrier·block·scanning·was·eliminated.</p><p>Own·Id:·OTP-19166·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8636"·title="">PR-8636</a></p></li><li><p>A·race·in·the·kTLS·flavour·of·SSL·distribution·has·been·fixed·so·that·<code·class="inline">inet_drv.c</code>·doesn't·read·ahead·too·much·data,·which·could·cause·the·kTLS·encryption·to·be·activated·too·late·when·some·encrypted·data·had·already·been·read·into·the·<code·class="inline">inet_drv.c</code>·buffer·as·unencrypted.</p><p>Own·Id:·OTP-19175·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/8561"·title="">GH-8561</a>,·<a·href="https://github.com/erlang/otp/pull/8690"·title="">PR-8690</a></p></li><li><p>Fixed·an·emulator·crash·relating·to·compressed·ETS·tables.</p><p>Own·Id:·OTP-19176·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8683"·title="">PR-8683</a></p></li><li><p>A·function·(encode_sockaddr)·was·called·with·superfluous·argument,·on·Windows,·in·the·net·nif.</p><p>Own·Id:·OTP-19181</p></li><li><p>Fixed·a·crash·that·could·happen·on·reallocation·failure.</p><p>Own·Id:·OTP-19192</p></li><li><p>Man·pages·are·now·available·for·<code·class="inline">erl</code>,·<code·class="inline">erlc</code>,·<code·class="inline">dialyzer</code>,·and·all·other·programs·that·are·included·in·Erlang/OTP.</p><p>Own·Id:·OTP-19201·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8740"·title="">PR-8740</a></p></li><li><p>A·previous·correction·in·the·Erlang/OTP·27.0.1·emergency·patch·had·the·unfortunate·side·effect·of·sometimes·causing·an·unnecessary·fullsweep·(major)·garbage·collection·instead·of·a··generation·(minor)·garbage·collection.·This·has·been·corrected.</p><p>Own·Id:·OTP-19209·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8751"·title="">PR-8751</a>,·<a·href="https://github.com/erlang/otp/pull/8539"·title="">PR-8539</a></p></li><li><p>Fixed·trace·matchspec·functions·<code·class="inline">trace</code>·and·<code·class="inline">enable_trace</code>·to·use·the·session·tracer·when·enabling·trace·flags·on·untraced·processes.</p><p>Own·Id:·OTP-19211·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/8657"·title="">GH-8657</a></p></li><li><p>Fixed·a·typo·in·the·type·spec·for·<a·href="erlang.html#t:garbage_collection_defaults/0"><code·class="inline">erlang:garbage_collection_defaults/0</code></a>.</p><p>Own·Id:·OTP-19215·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8757"·title="">PR-8757</a></p></li><li><p>Corrected·socket:ioctl·for·genaddr·(SIOCGENADDR).</p><p>Own·Id:·OTP-19216</p></li><li><p>The·support·for·Transparent·Huge·Pages·has·been·disabled·on·non-amd64·Linux·systems.</p><p>Own·Id:·OTP-19219·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8702"·title="">PR-8702</a></p></li><li><p>Fixed·a·race·condition·on·Windows·when·upgrading·from·<code·class="inline">-noshell</code>·to·a·shell·that·would·cause·Erlang·to·crash·with·the·error:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 304 | <ul><li><p>The·<code·class="inline">erl·-man·example</code>·has·been·corrected·to·not·consider·values·set·in·<code·class="inline">ERL_ZFLAGS</code>·and·stop·parsing·arguments·when·a·<code·class="inline">--</code>·is·encountered.</p><p>Own·Id:·OTP-19098·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8478"·title="">PR-8478</a>,·<a·href="https://github.com/erlang/otp/issues/8477"·title="">GH-8477</a></p></li><li><p>Compiler·warnings·for··Windows·I/O·back-end·have·been·silenced.</p><p>Own·Id:·OTP-19113</p></li><li><p>Bugs·related·to·<code·class="inline">return_to</code>·trace·have·been·fixed.·It·did·not·work·for·more·than·once·trace·session·and·it·did·sometimes·not·trigger·for·exceptions.</p><p>Own·Id:·OTP-19122</p></li><li><p>Potential·deadlocks·while·writing·a·crash·dump·have·been·eliminated.</p><p>Own·Id:·OTP-19133·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8521"·title="">PR-8521</a>,·<a·href="https://github.com/erlang/otp/issues/8498"·title="">GH-8498</a></p></li><li><p>When·loading·a·damaged·or·too·old·BEAM·file,·the·runtime·system·could·crash.</p><p>Own·Id:·OTP-19153·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8623"·title="">PR-8623</a></p></li><li><p>A·scheduler·thread·could·get·stuck·when·deleting·a·memory·allocator·carrier·when·adjacent·carriers·were·deleted·and/or·inserted·simultaneously·by·other·schedulers.·This·in·turn·could·cause·the·other·schedulers·to·get·stuck·as·well.</p><p>Own·Id:·OTP-19154·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/8613"·title="">GH-8613</a>,·<a·href="https://github.com/erlang/otp/pull/8627"·title="">PR-8627</a></p></li><li><p>Statistics·for·number·of·carriers·in·a·shared·pool·after·calling·<code·class="inline">instrument:allocations</code>·or·<code·class="inline">instrument:carriers</code>·are·now·correct.·Also,·a·potential·bug·in·carrier·block·scanning·was·eliminated.</p><p>Own·Id:·OTP-19166·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8636"·title="">PR-8636</a></p></li><li><p>A·race·in·the·kTLS·flavour·of·SSL·distribution·has·been·fixed·so·that·<code·class="inline">inet_drv.c</code>·doesn't·read·ahead·too·much·data,·which·could·cause·the·kTLS·encryption·to·be·activated·too·late·when·some·encrypted·data·had·already·been·read·into·the·<code·class="inline">inet_drv.c</code>·buffer·as·unencrypted.</p><p>Own·Id:·OTP-19175·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/8561"·title="">GH-8561</a>,·<a·href="https://github.com/erlang/otp/pull/8690"·title="">PR-8690</a></p></li><li><p>Fixed·an·emulator·crash·relating·to·compressed·ETS·tables.</p><p>Own·Id:·OTP-19176·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8683"·title="">PR-8683</a></p></li><li><p>A·function·(encode_sockaddr)·was·called·with·superfluous·argument,·on·Windows,·in·the·net·nif.</p><p>Own·Id:·OTP-19181</p></li><li><p>Fixed·a·crash·that·could·happen·on·reallocation·failure.</p><p>Own·Id:·OTP-19192</p></li><li><p>Man·pages·are·now·available·for·<code·class="inline">erl</code>,·<code·class="inline">erlc</code>,·<code·class="inline">dialyzer</code>,·and·all·other·programs·that·are·included·in·Erlang/OTP.</p><p>Own·Id:·OTP-19201·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8740"·title="">PR-8740</a></p></li><li><p>A·previous·correction·in·the·Erlang/OTP·27.0.1·emergency·patch·had·the·unfortunate·side·effect·of·sometimes·causing·an·unnecessary·fullsweep·(major)·garbage·collection·instead·of·a··generation·(minor)·garbage·collection.·This·has·been·corrected.</p><p>Own·Id:·OTP-19209·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8751"·title="">PR-8751</a>,·<a·href="https://github.com/erlang/otp/pull/8539"·title="">PR-8539</a></p></li><li><p>Fixed·trace·matchspec·functions·<code·class="inline">trace</code>·and·<code·class="inline">enable_trace</code>·to·use·the·session·tracer·when·enabling·trace·flags·on·untraced·processes.</p><p>Own·Id:·OTP-19211·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/8657"·title="">GH-8657</a></p></li><li><p>Fixed·a·typo·in·the·type·spec·for·<a·href="erlang.html#t:garbage_collection_defaults/0"><code·class="inline">erlang:garbage_collection_defaults/0</code></a>.</p><p>Own·Id:·OTP-19215·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8757"·title="">PR-8757</a></p></li><li><p>Corrected·socket:ioctl·for·genaddr·(SIOCGENADDR).</p><p>Own·Id:·OTP-19216</p></li><li><p>The·support·for·Transparent·Huge·Pages·has·been·disabled·on·non-amd64·Linux·systems.</p><p>Own·Id:·OTP-19219·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8702"·title="">PR-8702</a></p></li><li><p>Fixed·a·race·condition·on·Windows·when·upgrading·from·<code·class="inline">-noshell</code>·to·a·shell·that·would·cause·Erlang·to·crash·with·the·error:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="0684638879-1">{</span><span·class="ss">'GetOverlappedResult'</span><span·class="p">,</span><span·class="w"> |
| 305 | ··</span><span·class="ss">'The·I/O·operation·has·been·aborted·because·of·either·a·thread·exit·or·an·application·request.'</span><span·class="p"·data-group-id=" | 305 | ··</span><span·class="ss">'The·I/O·operation·has·been·aborted·because·of·either·a·thread·exit·or·an·application·request.'</span><span·class="p"·data-group-id="0684638879-1">}</span><span·class="p">.</span></code></pre><p>Own·Id:·OTP-19220·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8774"·title="">PR-8774</a>,·<a·href="https://github.com/erlang/otp/issues/7621"·title="">GH-7621</a></p></li></ul><h3·id="improvements-and-new-features-2"·class="section-heading"> |
| 306 | ··<a·href="#improvements-and-new-features-2"·class="hover-link"> | 306 | ··<a·href="#improvements-and-new-features-2"·class="hover-link"> |
| 307 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 307 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 308 | ··</a> | 308 | ··</a> |
| 309 | ··<span·class="text">Improvements·and·New·Features</span> | 309 | ··<span·class="text">Improvements·and·New·Features</span> |
| 310 | </h3> | 310 | </h3> |
| 311 | <ul><li><p>Added·functions·<code·class="inline">getservbyname</code>·and·<code·class="inline">getservbyport</code>·to·the·<code·class="inline">net</code>·module.</p><p>Own·Id:·OTP-19101·Aux·Id:·OTP-18835</p></li><li><p>Introduced·enet·|·esock·variants·of·<a·href="../../../lib/kernel-10.3/doc/html/inet.html"><code·class="inline">inet</code></a>·functions,·either·when·called·with·sockets, | 311 | <ul><li><p>Added·functions·<code·class="inline">getservbyname</code>·and·<code·class="inline">getservbyport</code>·to·the·<code·class="inline">net</code>·module.</p><p>Own·Id:·OTP-19101·Aux·Id:·OTP-18835</p></li><li><p>Introduced·enet·|·esock·variants·of·<a·href="../../../lib/kernel-10.3/doc/html/inet.html"><code·class="inline">inet</code></a>·functions,·either·when·called·with·sockets, |
| 312 | with·explicit·inet_backend·config·or·with·the·e·inet_backend·kernel·config·option.</p><p>Own·Id:·OTP-19132·Aux·Id:·OTP-19101</p></li><li><p>Optimize·process·and·port·creation·when·such·tracing·is·not·enabled·by·any·trace·session.</p><p>Own·Id:·OTP-19167·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8655"·title="">PR-8655</a></p></li><li><p>Compiler·warnings·for·some·removed·functions·have·been·corrected·to·point·out·the·correct·replacement·functions.</p><p>Own·Id:·OTP-19186·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8709"·title="">PR-8709</a></p></li><li><p>A·boolean·option·<code·class="inline">read_ahead</code>·has·been·implemented·for·<code·class="inline">gen_tcp</code>,·default·<code·class="inline">true</code>,·to·facilitate·not·reading·past·(caching·data)·the·end·of·a·packet.··In·particular,·for·kTLS,·caching·data·could·read·in·data·that·was·supposed·to·be·decrypted·by·the·platform's·network·stack,·before·crypto·parameters·could·be·activated.</p><p>Own·Id:·OTP-19199·Aux·Id:·OTP-19175,·<a·href="https://github.com/erlang/otp/issues/8561"·title="">GH-8561</a>,·<a·href="https://github.com/erlang/otp/issues/8690"·title="">GH-8690</a>,·<a·href="https://github.com/erlang/otp/issues/8785"·title="">GH-8785</a></p></li><li><p>The·<a·href="../../../lib/stdlib-7.0/doc/html/zip.html"><code·class="inline">zip</code></a>·module·has·been·updated·with·support·for:</p><ul><li>zip64·archives·-·Archives·larger·than·4GB·or·with·more·than·2^32·entries.</li><li>extended·timestamps·-·Higher·resolution·and·in·UTC.</li><li>UID/GID·-·Save·and·extract·the·original·UID/GID.</li><li>Fixes·so·that·permission·mode·attributes·are·correctly·read·and·set·for·files·in·archives.</li><li><a·href="../../../lib/stdlib-7.0/doc/html/zip.html#list_dir/2"><code·class="inline">zip:list_dir/2</code></a>·now·also·returns·directories,·not·only·files.·(You·can·disable·this·behaviour·by·using·the·option·<code·class="inline">skip_directories</code>).</li></ul><p>Various·bugs·in·the·original·implementation·have·also·been·fixed,·such·as:</p><ul><li>Correctly·encode·and·decode·the·DOS·timestamps·for·entries·within·an·archive·(that·is·the·non-extended·timestamp).</li><li>Fix·DOS·timestamps·to·be·set·to·localtime·instead·of·UTC·(use·extended·timestamps·for·UTC·timestamps).</li><li>Use·the·unix·file·attributes·read·from·disk·when·creating·archives·instead·of·setting·everything·to·644.</li></ul><p>Own·Id:·OTP-19214·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8765"·title="">PR-8765</a></p></li></ul><h2·id="erts-15-0-1"·class="section-heading"> | 312 | with·explicit·inet_backend·config·or·with·the·e·inet_backend·kernel·config·option.</p><p>Own·Id:·OTP-19132·Aux·Id:·OTP-19101</p></li><li><p>Optimize·process·and·port·creation·when·such·tracing·is·not·enabled·by·any·trace·session.</p><p>Own·Id:·OTP-19167·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8655"·title="">PR-8655</a></p></li><li><p>Compiler·warnings·for·some·removed·functions·have·been·corrected·to·point·out·the·correct·replacement·functions.</p><p>Own·Id:·OTP-19186·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8709"·title="">PR-8709</a></p></li><li><p>A·boolean·option·<code·class="inline">read_ahead</code>·has·been·implemented·for·<code·class="inline">gen_tcp</code>,·default·<code·class="inline">true</code>,·to·facilitate·not·reading·past·(caching·data)·the·end·of·a·packet.··In·particular,·for·kTLS,·caching·data·could·read·in·data·that·was·supposed·to·be·decrypted·by·the·platform's·network·stack,·before·crypto·parameters·could·be·activated.</p><p>Own·Id:·OTP-19199·Aux·Id:·OTP-19175,·<a·href="https://github.com/erlang/otp/issues/8561"·title="">GH-8561</a>,·<a·href="https://github.com/erlang/otp/issues/8690"·title="">GH-8690</a>,·<a·href="https://github.com/erlang/otp/issues/8785"·title="">GH-8785</a></p></li><li><p>The·<a·href="../../../lib/stdlib-7.0/doc/html/zip.html"><code·class="inline">zip</code></a>·module·has·been·updated·with·support·for:</p><ul><li>zip64·archives·-·Archives·larger·than·4GB·or·with·more·than·2^32·entries.</li><li>extended·timestamps·-·Higher·resolution·and·in·UTC.</li><li>UID/GID·-·Save·and·extract·the·original·UID/GID.</li><li>Fixes·so·that·permission·mode·attributes·are·correctly·read·and·set·for·files·in·archives.</li><li><a·href="../../../lib/stdlib-7.0/doc/html/zip.html#list_dir/2"><code·class="inline">zip:list_dir/2</code></a>·now·also·returns·directories,·not·only·files.·(You·can·disable·this·behaviour·by·using·the·option·<code·class="inline">skip_directories</code>).</li></ul><p>Various·bugs·in·the·original·implementation·have·also·been·fixed,·such·as:</p><ul><li>Correctly·encode·and·decode·the·DOS·timestamps·for·entries·within·an·archive·(that·is·the·non-extended·timestamp).</li><li>Fix·DOS·timestamps·to·be·set·to·localtime·instead·of·UTC·(use·extended·timestamps·for·UTC·timestamps).</li><li>Use·the·unix·file·attributes·read·from·disk·when·creating·archives·instead·of·setting·everything·to·644.</li></ul><p>Own·Id:·OTP-19214·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8765"·title="">PR-8765</a></p></li></ul><h2·id="erts-15-0-1"·class="section-heading"> |
| Offset 335, 25 lines modified | Offset 335, 25 lines modified | ||
| 335 | </h3> | 335 | </h3> |
| 336 | <ul><li><p>Bugs·in·how·<code·class="inline">erl·-extra</code>·interacts·with·passing·flags·via·ERL_*FLAGS·or·<code·class="inline">-args_file</code>·have·been·fixed.</p><p>Own·Id:·OTP-18766·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/7639"·title="">PR-7639</a></p></li><li><p>Fixed·a·bug·that·prevented·the·emulator·from·building·on·recent·versions·of·Yocto·Linux.</p><p>Own·Id:·OTP-18918·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/7952"·title="">PR-7952</a></p></li><li><p>Fixed·spectre·mitigation·configure·test·to·work·with·GCC·patches·to·always·add·<code·class="inline">-fcf-protection=full</code>.</p><p>Own·Id:·OTP-18928·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8006"·title="">PR-8006</a></p></li><li><p>A··call·to·<code·class="inline">socket:[recv|recvfrom|recvmsg]/*</code>·with·Timeout·=·0·on·Windows·could·cause·a·(case·clause)·crash·if·data·is·immediately·available.</p><p>Own·Id:·OTP-19063·Aux·Id:·OTP-18835</p></li><li><p>Fix·bug·on·Windows·where·<code·class="inline">exit_status</code>·would·not·be·sent·when·a·port·exits·after·the·stdin/stdout·handles·have·been·closed.</p><p>Own·Id:·OTP-19077·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8324"·title="">PR-8324</a></p></li></ul><h3·id="improvements-and-new-features-3"·class="section-heading"> | 336 | <ul><li><p>Bugs·in·how·<code·class="inline">erl·-extra</code>·interacts·with·passing·flags·via·ERL_*FLAGS·or·<code·class="inline">-args_file</code>·have·been·fixed.</p><p>Own·Id:·OTP-18766·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/7639"·title="">PR-7639</a></p></li><li><p>Fixed·a·bug·that·prevented·the·emulator·from·building·on·recent·versions·of·Yocto·Linux.</p><p>Own·Id:·OTP-18918·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/7952"·title="">PR-7952</a></p></li><li><p>Fixed·spectre·mitigation·configure·test·to·work·with·GCC·patches·to·always·add·<code·class="inline">-fcf-protection=full</code>.</p><p>Own·Id:·OTP-18928·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8006"·title="">PR-8006</a></p></li><li><p>A··call·to·<code·class="inline">socket:[recv|recvfrom|recvmsg]/*</code>·with·Timeout·=·0·on·Windows·could·cause·a·(case·clause)·crash·if·data·is·immediately·available.</p><p>Own·Id:·OTP-19063·Aux·Id:·OTP-18835</p></li><li><p>Fix·bug·on·Windows·where·<code·class="inline">exit_status</code>·would·not·be·sent·when·a·port·exits·after·the·stdin/stdout·handles·have·been·closed.</p><p>Own·Id:·OTP-19077·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8324"·title="">PR-8324</a></p></li></ul><h3·id="improvements-and-new-features-3"·class="section-heading"> |
| 337 | ··<a·href="#improvements-and-new-features-3"·class="hover-link"> | 337 | ··<a·href="#improvements-and-new-features-3"·class="hover-link"> |
| 338 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 338 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 339 | ··</a> | 339 | ··</a> |
| 340 | ··<span·class="text">Improvements·and·New·Features</span> | 340 | ··<span·class="text">Improvements·and·New·Features</span> |
| 341 | </h3> | 341 | </h3> |
| 342 | <ul><li><p>Refactored·how·the·JIT·handles·POSIX·signals·and·how·they·affect·thread·stacks,·allowing·us·to·use·the·native·stack·register·for·Erlang·stacks·on·more·platforms.</p><p>Notably,·containers·built·on·64-bit·x86·Alpine·Linux·images·will·now·perform·much·better·in·sequential·code.·As·an·example,·running·<code·class="inline">dialyzer</code>·over·the·OTP·code·base·finishes·about·15%·quicker.</p><p>Own·Id:·OTP-18568·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/7174"·title="">PR-7174</a></p></li><li><p>The·<a·href="../../../lib/runtime_tools-2.2/doc/html/instrument.html"><code·class="inline">instrument</code></a>·module·can·now·track·allocations·on·a·per-process·or·per-port·basis.</p><p>Own·Id:·OTP-18577·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/7236"·title="">PR-7236</a></p></li><li><p>The·<code·class="inline">pid</code>·field·returned·from·<a·href="erlang.html#fun_info/2"><code·class="inline">erlang:fun_info/1,2</code></a>·is·now·always·the·pid·for·the·<code·class="inline">init</code>·process·of·the·local·node,·not·the·pid·for·the·actual·process·that·created·the·fun.</p><p><strong><em>·POTENTIAL·INCOMPATIBILITY·</em></strong></p><p>Own·Id:·OTP-18594·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/7274"·title="">PR-7274</a></p></li><li><p>By·default,·escripts·will·now·be·compiled·instead·of·interpreted.·That·means·that·the·<code·class="inline">compiler</code>·application·must·be·installed.</p><p><strong><em>·POTENTIAL·INCOMPATIBILITY·</em></strong></p><p>Own·Id:·OTP-18639·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/7348"·title="">PR-7348</a></p></li><li><p>A·binary·returned·from·the·<a·href="../../../lib/kernel-10.3/doc/html/socket.html"><code·class="inline">socket</code></a>·receive·functions·is·no·longer·created·as·a·sub·binary·of·an·often·large·receive·buffer·binary·(socket·option·<code·class="inline">{otp,rcvbuf}</code>).··This·avoids·space·waste,·trusting·the·allocators·to·implement·reallocation·efficiently.</p><p>Own·Id:·OTP-18642·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/6152"·title="">GH-6152</a>,·<a·href="https://github.com/erlang/otp/pull/7465"·title="">PR-7465</a></p></li><li><p>The·default·process·limit·has·been·raised·to·<code·class="inline">1048576</code>·processes.</p><p>Own·Id:·OTP-18699·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/7388"·title="">PR-7388</a></p></li><li><p>The·<a·href="erlang.html#system_monitor/2"><code·class="inline">erlang:system_monitor/2</code></a>·functionality·is·now·able·to·monitor·long·message·queues·in·the·system.</p><p>Own·Id:·OTP-18709·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/7651"·title="">PR-7651</a></p></li><li><p>The·<code·class="inline">erl</code>·command·now·supports·the·<code·class="inline">-S</code>·flag,·which·is·similar·to·the·<code·class="inline">-run</code>·flag,·except·that·it·will·pass·all·arguments·up·to·end·of·the·command·line·to·the·called·function.·(The·<code·class="inline">-run</code>·flag·will·not·pass·arguments·beginning·with·a·hyphen.)·Another·difference·is·that·<code·class="inline">-S</code>·will·always·call·a·function·with·one·argument,·passing·an·empty·list·if·no·arguments·were·given.</p><p>Own·Id:·OTP-18744·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/7470"·title="">PR-7470</a></p></li><li><p>When·implementing·an·alternative·carrier·for·the·Erlang·distribution,·a·separate·input·handler·process·may·now·be·registered,·using·<a·href="erlang.html#dist_ctrl_input_handler/2"><code·class="inline">erlang:dist_ctrl_input_handler/2</code></a>,·also·in·the·case·when·the·distribution·controller·is·a·port.</p><p>Own·Id:·OTP-18774·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/7110"·title="">PR-7110</a></p></li><li><p>The·call·stack·trace·has·now·been·added·to·the·error·reported·by·<a·href="erlang.html#process_flag/2"><code·class="inline">erlang:process_flag/2</code></a>·when·<code·class="inline">max_heap_size</code>·limit·has·been·exceeded.</p><p>Own·Id:·OTP-18779·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/7592"·title="">PR-7592</a></p></li><li><p><code·class="inline">-callback</code>·attributes·have·been·added·to·<a·href="erl_tracer.html"><code·class="inline">erl_tracer</code></a>.</p><p>Own·Id:·OTP-18794·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/7703"·title="">PR-7703</a></p></li><li><p>For·<code·class="inline">inet_backend·=·socket</code>,·setting·the·<code·class="inline">active</code>·socket·option·alone,·to·<code·class="inline">once</code>,·<code·class="inline">true</code>·or·<code·class="inline">N</code>·has·been·optimized,·as·well·as·the·corresponding·data·delivery.</p><p>Own·Id:·OTP-18835</p></li><li><p>New·functions·<code·class="inline">socket:sendv/*</code>·for·sending·I/O·vectors·have·been·added.</p><p>Own·Id:·OTP-18845</p></li><li><p>Socket·options·that·take·string·now·also·accept·binaries.</p><p>Own·Id:·OTP-18849·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/6510"·title="">PR-6510</a></p></li><li><p>Native·coverage·support·has·been·implemented·in·the·JIT.·It·will··automatically·be·used·by·the·<a·href="../../../lib/tools-4.1.2/doc/html/cover.html"><code·class="inline">cover</code></a>·tool·to·reduce·the·execution·overhead·when·running·cover-compiled·code.</p><p>There·are·also·new·APIs·to·support·native·coverage·without·using·the·<code·class="inline">cover</code>·tool.</p><p>To·instrument·code·for·native·coverage·it·must·be·compiled·with·the·<a·href="../../../lib/compiler-9.0/doc/html/compile.html#line_coverage"><code·class="inline">line_coverage</code></a>·option.</p><p>To·enable·native·coverage·in·the·runtime·system,·start·it·like·so:</p><pre><code·class="text">$·erl·+JPcover·true</code></pre><p>There·are·also·the·following·new·functions·for·supporting·native·coverage:</p><ul><li><a·href="../../../lib/kernel-10.3/doc/html/code.html#coverage_support/0"><code·class="inline">code:coverage_support/0</code></a></li><li><a·href="../../../lib/kernel-10.3/doc/html/code.html#get_coverage/2"><code·class="inline">code:get_coverage/2</code></a></li><li><a·href="../../../lib/kernel-10.3/doc/html/code.html#reset_coverage/1"><code·class="inline">code:reset_coverage/1</code></a></li><li><a·href="../../../lib/kernel-10.3/doc/html/code.html#get_coverage_mode/0"><code·class="inline">code:get_coverage_mode/0</code></a></li><li><a·href="../../../lib/kernel-10.3/doc/html/code.html#get_coverage_mode/1"><code·class="inline">code:get_coverage_mode/1</code></a></li><li><a·href="../../../lib/kernel-10.3/doc/html/code.html#set_coverage_mode/1"><code·class="inline">code:set_coverage_mode/1</code></a></li></ul><p>Own·Id:·OTP-18856·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/7856"·title="">PR-7856</a></p></li><li><p>Changed·the·default·value·of·the·command·line·flag·<code·class="inline">-code_path_choice</code>·to·<code·class="inline">strict</code>.·</p><p>Note·that·for·application·systems·using·archives,·it·is·necessary·to·add·the·<code·class="inline">code_path_choice·relaxed</code>·to·the·command·line·that·invokes·<code·class="inline">erl</code>.</p><p>Own·Id:·OTP-18894·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/7243"·title="">PR-7243</a></p></li><li><p>Added·module·loading·to·<code·class="inline">erl·-init_debug</code>·printouts.</p><p>Own·Id:·OTP-18929·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8004"·title="">PR-8004</a></p></li><li><p>When·the·runtime·system·halts,·it·performs·various·flush·operations·before·terminating.·By·default·there·is·no·limit·on·how·much·time·the·flush·operations·are·allowed·to·take.·A·new·<em>halt·flush·timeout</em>·functionality·has·been·introduced·which·can·be·used·for·limiting·the·amount·of·time·that·the·flushing·operations·are·allowed·to·take.·For·more·information·see·the·documentation·of·the·<a·href="erlang.html#halt_flush_timeout"><code·class="inline">flush_timeout</code></a>·option·of·the·<a·href="erlang.html#halt/2"><code·class="inline">erlang:halt/2</code></a>·BIF·and·the·documentation·of·the·<code·class="inline">erl</code>·<a·href="erl_cmd.html#+zhft"><code·class="inline">+zhft·<Timeout></code></a>·command·line·flag.</p><p>Own·Id:·OTP-18938·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8035"·title="">PR-8035</a>,·<a·href="https://github.com/erlang/otp/issues/7438"·title="">GH-7438</a></p></li><li><p>Optimized·code·loading·by·moving·certain·operations·from·the·code·server·to·the·caller.</p><p>Own·Id:·OTP-18941·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/7981"·title="">PR-7981</a></p></li><li><p>Updated·asmjit·to·version·a465fe71ab3d0e224b2b4bd0fac69ae68ab9239d</p><p>Own·Id:·OTP-18942</p></li><li><p>The·deprecated·functions·in·<a·href="zlib.html"><code·class="inline">zlib</code></a>·have·been·removed.·That·includes·<code·class="inline">inflateChunk/{1,2}</code>,·<code·class="inline">getBufSize/1</code>,·<code·class="inline">setBufSize/2</code>,·the·CRC32·functions,·and·the·Adler·checksum·functions.</p><p>Own·Id:·OTP-18950</p></li><li><p>The·documentation·has·been·migrated·to·use·Markdown·and·ExDoc.</p><p>Own·Id:·OTP-18955·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8026"·title="">PR-8026</a></p></li><li><p>Safe·destructive·update·of·tuples·has·been·implemented·in·the·compiler·and·runtime·system.·This·allows·the·VM·to·update·tuples·in-place·when·it·is·safe·to·do·so,·thus·improving·performance·by·doing·less·copying·but·also·by·producing·less·garbage.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id=" | 342 | <ul><li><p>Refactored·how·the·JIT·handles·POSIX·signals·and·how·they·affect·thread·stacks,·allowing·us·to·use·the·native·stack·register·for·Erlang·stacks·on·more·platforms.</p><p>Notably,·containers·built·on·64-bit·x86·Alpine·Linux·images·will·now·perform·much·better·in·sequential·code.·As·an·example,·running·<code·class="inline">dialyzer</code>·over·the·OTP·code·base·finishes·about·15%·quicker.</p><p>Own·Id:·OTP-18568·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/7174"·title="">PR-7174</a></p></li><li><p>The·<a·href="../../../lib/runtime_tools-2.2/doc/html/instrument.html"><code·class="inline">instrument</code></a>·module·can·now·track·allocations·on·a·per-process·or·per-port·basis.</p><p>Own·Id:·OTP-18577·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/7236"·title="">PR-7236</a></p></li><li><p>The·<code·class="inline">pid</code>·field·returned·from·<a·href="erlang.html#fun_info/2"><code·class="inline">erlang:fun_info/1,2</code></a>·is·now·always·the·pid·for·the·<code·class="inline">init</code>·process·of·the·local·node,·not·the·pid·for·the·actual·process·that·created·the·fun.</p><p><strong><em>·POTENTIAL·INCOMPATIBILITY·</em></strong></p><p>Own·Id:·OTP-18594·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/7274"·title="">PR-7274</a></p></li><li><p>By·default,·escripts·will·now·be·compiled·instead·of·interpreted.·That·means·that·the·<code·class="inline">compiler</code>·application·must·be·installed.</p><p><strong><em>·POTENTIAL·INCOMPATIBILITY·</em></strong></p><p>Own·Id:·OTP-18639·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/7348"·title="">PR-7348</a></p></li><li><p>A·binary·returned·from·the·<a·href="../../../lib/kernel-10.3/doc/html/socket.html"><code·class="inline">socket</code></a>·receive·functions·is·no·longer·created·as·a·sub·binary·of·an·often·large·receive·buffer·binary·(socket·option·<code·class="inline">{otp,rcvbuf}</code>).··This·avoids·space·waste,·trusting·the·allocators·to·implement·reallocation·efficiently.</p><p>Own·Id:·OTP-18642·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/6152"·title="">GH-6152</a>,·<a·href="https://github.com/erlang/otp/pull/7465"·title="">PR-7465</a></p></li><li><p>The·default·process·limit·has·been·raised·to·<code·class="inline">1048576</code>·processes.</p><p>Own·Id:·OTP-18699·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/7388"·title="">PR-7388</a></p></li><li><p>The·<a·href="erlang.html#system_monitor/2"><code·class="inline">erlang:system_monitor/2</code></a>·functionality·is·now·able·to·monitor·long·message·queues·in·the·system.</p><p>Own·Id:·OTP-18709·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/7651"·title="">PR-7651</a></p></li><li><p>The·<code·class="inline">erl</code>·command·now·supports·the·<code·class="inline">-S</code>·flag,·which·is·similar·to·the·<code·class="inline">-run</code>·flag,·except·that·it·will·pass·all·arguments·up·to·end·of·the·command·line·to·the·called·function.·(The·<code·class="inline">-run</code>·flag·will·not·pass·arguments·beginning·with·a·hyphen.)·Another·difference·is·that·<code·class="inline">-S</code>·will·always·call·a·function·with·one·argument,·passing·an·empty·list·if·no·arguments·were·given.</p><p>Own·Id:·OTP-18744·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/7470"·title="">PR-7470</a></p></li><li><p>When·implementing·an·alternative·carrier·for·the·Erlang·distribution,·a·separate·input·handler·process·may·now·be·registered,·using·<a·href="erlang.html#dist_ctrl_input_handler/2"><code·class="inline">erlang:dist_ctrl_input_handler/2</code></a>,·also·in·the·case·when·the·distribution·controller·is·a·port.</p><p>Own·Id:·OTP-18774·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/7110"·title="">PR-7110</a></p></li><li><p>The·call·stack·trace·has·now·been·added·to·the·error·reported·by·<a·href="erlang.html#process_flag/2"><code·class="inline">erlang:process_flag/2</code></a>·when·<code·class="inline">max_heap_size</code>·limit·has·been·exceeded.</p><p>Own·Id:·OTP-18779·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/7592"·title="">PR-7592</a></p></li><li><p><code·class="inline">-callback</code>·attributes·have·been·added·to·<a·href="erl_tracer.html"><code·class="inline">erl_tracer</code></a>.</p><p>Own·Id:·OTP-18794·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/7703"·title="">PR-7703</a></p></li><li><p>For·<code·class="inline">inet_backend·=·socket</code>,·setting·the·<code·class="inline">active</code>·socket·option·alone,·to·<code·class="inline">once</code>,·<code·class="inline">true</code>·or·<code·class="inline">N</code>·has·been·optimized,·as·well·as·the·corresponding·data·delivery.</p><p>Own·Id:·OTP-18835</p></li><li><p>New·functions·<code·class="inline">socket:sendv/*</code>·for·sending·I/O·vectors·have·been·added.</p><p>Own·Id:·OTP-18845</p></li><li><p>Socket·options·that·take·string·now·also·accept·binaries.</p><p>Own·Id:·OTP-18849·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/6510"·title="">PR-6510</a></p></li><li><p>Native·coverage·support·has·been·implemented·in·the·JIT.·It·will··automatically·be·used·by·the·<a·href="../../../lib/tools-4.1.2/doc/html/cover.html"><code·class="inline">cover</code></a>·tool·to·reduce·the·execution·overhead·when·running·cover-compiled·code.</p><p>There·are·also·new·APIs·to·support·native·coverage·without·using·the·<code·class="inline">cover</code>·tool.</p><p>To·instrument·code·for·native·coverage·it·must·be·compiled·with·the·<a·href="../../../lib/compiler-9.0/doc/html/compile.html#line_coverage"><code·class="inline">line_coverage</code></a>·option.</p><p>To·enable·native·coverage·in·the·runtime·system,·start·it·like·so:</p><pre><code·class="text">$·erl·+JPcover·true</code></pre><p>There·are·also·the·following·new·functions·for·supporting·native·coverage:</p><ul><li><a·href="../../../lib/kernel-10.3/doc/html/code.html#coverage_support/0"><code·class="inline">code:coverage_support/0</code></a></li><li><a·href="../../../lib/kernel-10.3/doc/html/code.html#get_coverage/2"><code·class="inline">code:get_coverage/2</code></a></li><li><a·href="../../../lib/kernel-10.3/doc/html/code.html#reset_coverage/1"><code·class="inline">code:reset_coverage/1</code></a></li><li><a·href="../../../lib/kernel-10.3/doc/html/code.html#get_coverage_mode/0"><code·class="inline">code:get_coverage_mode/0</code></a></li><li><a·href="../../../lib/kernel-10.3/doc/html/code.html#get_coverage_mode/1"><code·class="inline">code:get_coverage_mode/1</code></a></li><li><a·href="../../../lib/kernel-10.3/doc/html/code.html#set_coverage_mode/1"><code·class="inline">code:set_coverage_mode/1</code></a></li></ul><p>Own·Id:·OTP-18856·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/7856"·title="">PR-7856</a></p></li><li><p>Changed·the·default·value·of·the·command·line·flag·<code·class="inline">-code_path_choice</code>·to·<code·class="inline">strict</code>.·</p><p>Note·that·for·application·systems·using·archives,·it·is·necessary·to·add·the·<code·class="inline">code_path_choice·relaxed</code>·to·the·command·line·that·invokes·<code·class="inline">erl</code>.</p><p>Own·Id:·OTP-18894·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/7243"·title="">PR-7243</a></p></li><li><p>Added·module·loading·to·<code·class="inline">erl·-init_debug</code>·printouts.</p><p>Own·Id:·OTP-18929·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8004"·title="">PR-8004</a></p></li><li><p>When·the·runtime·system·halts,·it·performs·various·flush·operations·before·terminating.·By·default·there·is·no·limit·on·how·much·time·the·flush·operations·are·allowed·to·take.·A·new·<em>halt·flush·timeout</em>·functionality·has·been·introduced·which·can·be·used·for·limiting·the·amount·of·time·that·the·flushing·operations·are·allowed·to·take.·For·more·information·see·the·documentation·of·the·<a·href="erlang.html#halt_flush_timeout"><code·class="inline">flush_timeout</code></a>·option·of·the·<a·href="erlang.html#halt/2"><code·class="inline">erlang:halt/2</code></a>·BIF·and·the·documentation·of·the·<code·class="inline">erl</code>·<a·href="erl_cmd.html#+zhft"><code·class="inline">+zhft·<Timeout></code></a>·command·line·flag.</p><p>Own·Id:·OTP-18938·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8035"·title="">PR-8035</a>,·<a·href="https://github.com/erlang/otp/issues/7438"·title="">GH-7438</a></p></li><li><p>Optimized·code·loading·by·moving·certain·operations·from·the·code·server·to·the·caller.</p><p>Own·Id:·OTP-18941·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/7981"·title="">PR-7981</a></p></li><li><p>Updated·asmjit·to·version·a465fe71ab3d0e224b2b4bd0fac69ae68ab9239d</p><p>Own·Id:·OTP-18942</p></li><li><p>The·deprecated·functions·in·<a·href="zlib.html"><code·class="inline">zlib</code></a>·have·been·removed.·That·includes·<code·class="inline">inflateChunk/{1,2}</code>,·<code·class="inline">getBufSize/1</code>,·<code·class="inline">setBufSize/2</code>,·the·CRC32·functions,·and·the·Adler·checksum·functions.</p><p>Own·Id:·OTP-18950</p></li><li><p>The·documentation·has·been·migrated·to·use·Markdown·and·ExDoc.</p><p>Own·Id:·OTP-18955·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8026"·title="">PR-8026</a></p></li><li><p>Safe·destructive·update·of·tuples·has·been·implemented·in·the·compiler·and·runtime·system.·This·allows·the·VM·to·update·tuples·in-place·when·it·is·safe·to·do·so,·thus·improving·performance·by·doing·less·copying·but·also·by·producing·less·garbage.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id="0595463139-1">(</span><span·class="ss">rec</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0595463139-2">{</span><span·class="ss">a</span><span·class="p">,</span><span·class="ss">b</span><span·class="p">,</span><span·cl[·...·truncated·by·diffoscope;·len:·111,·SHA:·085298c64dd44e3c15e97d939b2f114566dd2428c25bd6308d0d6738aed0a74d·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 343 | </span><span·class="nf">update</span><span·class="p"·data-group-id=" | 343 | </span><span·class="nf">update</span><span·class="p"·data-group-id="0595463139-3">(</span><span·class="o">#</span><span·class="ss">rec</span><span·class="p"·data-group-id="0595463139-4">{</span><span·class="ss">a</span><span·class="o">=</span><span·class="ss">needs_update</span><span·class="p">,</span><span·class="ss">b</s[·...·truncated·by·diffoscope;·len:·195,·SHA:·c4478c22402129e7323e6e436b90428628b3255124baa5042d68b08d34731608·...·]-3">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 344 | ····</span><span·class="n">R</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">R0</span><span·class="o">#</span><span·class="ss">rec</span><span·class="p"·data-group-id=" | 344 | ····</span><span·class="n">R</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">R0</span><span·class="o">#</span><span·class="ss">rec</span><span·class="p"·data-group-id="0595463139-5">{</span><span·class="ss">a</span><span·class="o">=</span><span·class="ss">up_to_date</span><span·class="p"·data-group-id="0595463139-5">}</span><span·class="p">,</span><span·class="w"> |
| 345 | ····</span><span·class="k">if</span><span·class="w"> | 345 | ····</span><span·class="k">if</span><span·class="w"> |
| 346 | ········</span><span·class="n">N</span><span·class="w">·</span><span·class="o"><</span><span·class="w">·</span><span·class="mi">0</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 346 | ········</span><span·class="n">N</span><span·class="w">·</span><span·class="o"><</span><span·class="w">·</span><span·class="mi">0</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 347 | ············</span><span·class="n">R</span><span·class="o">#</span><span·class="ss">rec</span><span·class="p"·data-group-id=" | 347 | ············</span><span·class="n">R</span><span·class="o">#</span><span·class="ss">rec</span><span·class="p"·data-group-id="0595463139-6">{</span><span·class="ss">c</span><span·class="o">=</span><span·class="ss">negative</span><span·class="p"·data-group-id="0595463139-6">}</span><span·class="p">;</span><span·class="w"> |
| 348 | ········</span><span·class="n">N</span><span·class="w">·</span><span·class="o">==</span><span·class="w">·</span><span·class="mi">0</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 348 | ········</span><span·class="n">N</span><span·class="w">·</span><span·class="o">==</span><span·class="w">·</span><span·class="mi">0</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 349 | ············</span><span·class="n">R</span><span·class="o">#</span><span·class="ss">rec</span><span·class="p"·data-group-id=" | 349 | ············</span><span·class="n">R</span><span·class="o">#</span><span·class="ss">rec</span><span·class="p"·data-group-id="0595463139-7">{</span><span·class="ss">c</span><span·class="o">=</span><span·class="ss">zero</span><span·class="p"·data-group-id="0595463139-7">}</span><span·class="p">;</span><span·class="w"> |
| 350 | ········</span><span·class="n">N</span><span·class="w">·</span><span·class="o">></span><span·class="w">·</span><span·class="mi">0</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 350 | ········</span><span·class="n">N</span><span·class="w">·</span><span·class="o">></span><span·class="w">·</span><span·class="mi">0</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 351 | ············</span><span·class="n">R</span><span·class="o">#</span><span·class="ss">rec</span><span·class="p"·data-group-id=" | 351 | ············</span><span·class="n">R</span><span·class="o">#</span><span·class="ss">rec</span><span·class="p"·data-group-id="0595463139-8">{</span><span·class="ss">c</span><span·class="o">=</span><span·class="ss">positive</span><span·class="p"·data-group-id="0595463139-8">}</span><span·class="w"> |
| 352 | ····</span><span·class="k">end</span><span·class="p">.</span></code></pre><p>The·record·updates·in·each·of·the·three·clauses·of·the·<code·class="inline">if</code>·can·safely·be·done·in-place,·because·variable·<code·class="inline">R</code>·is·not·used·again.</p><p>Own·Id:·OTP-18972·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8090"·title="">PR-8090</a></p></li><li><p>The·obsolete·and·undocumented·support·for·opening·a·port·to·an·external | 352 | ····</span><span·class="k">end</span><span·class="p">.</span></code></pre><p>The·record·updates·in·each·of·the·three·clauses·of·the·<code·class="inline">if</code>·can·safely·be·done·in-place,·because·variable·<code·class="inline">R</code>·is·not·used·again.</p><p>Own·Id:·OTP-18972·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8090"·title="">PR-8090</a></p></li><li><p>The·obsolete·and·undocumented·support·for·opening·a·port·to·an·external |
| 353 | resource·by·passing·an·atom·(or·a·string)·as·first·argument·to | 353 | resource·by·passing·an·atom·(or·a·string)·as·first·argument·to |
| 354 | <a·href="erlang.html#open_port/2"><code·class="inline">open_port()</code></a>,·implemented·by·the·vanilla·driver, | 354 | <a·href="erlang.html#open_port/2"><code·class="inline">open_port()</code></a>,·implemented·by·the·vanilla·driver, |
| 355 | has·been·removed.·This·feature·has·been·scheduled·for·removal·in·OTP·27 | 355 | has·been·removed.·This·feature·has·been·scheduled·for·removal·in·OTP·27 |
| 356 | since·the·release·of·OTP·26.</p><p>Own·Id:·OTP-18976·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/7125"·title="">PR-7125</a></p></li><li><p>An·optional·NIF·callback·<code·class="inline">ERL_NIF_OPT_ON_UNLOAD_THREAD</code>·to·be·called·by·all·scheduler·threads·when·a·NIF·library·is·unloaded.·Used·for·releasing·thread·specific·data.·Can·be·set·with·function·<code·class="inline">enif_set_option</code>.</p><p>Own·Id:·OTP-18977·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/7809"·title="">PR-7809</a></p></li><li><p>There·is·a·new·module·<a·href="../../../lib/kernel-10.3/doc/html/trace.html"><code·class="inline">trace</code></a>·in·Kernel·providing·the·same·trace·functionality·as·<a·href="erlang.html#trace/3"><code·class="inline">erlang:trace/3</code></a>·and·<a·href="erlang.html#trace_pattern/3"><code·class="inline">erlang:trace_pattern/3</code></a>,·but·with·the·addition·of·<strong>dynamic·isolated·trace·sessions</strong>.</p><p>Own·Id:·OTP-18980</p></li><li><p>Added·the·<code·class="inline">+MMlp·on|off</code>·emulator·option·to·let·the·<code·class="inline">mseg</code>·allocator·use·"large·pages"·(sometimes·known·as·"huge·pages"·or·"super·pages").·This·currently·only·affects·super-carrier·allocations,·but·may·be·extended·in·the·future.</p><p>Own·Id:·OTP-18984·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/7977"·title="">PR-7977</a></p></li><li><p><code·class="inline">inet_backend·=·socket</code>·has·been·optimized·and·reworked·to·be·more·compatible·with·the·original·<code·class="inline">inet_backend·=·inet</code>.</p><p>Own·Id:·OTP-19004·Aux·Id:·OTP-18835</p></li><li><p>The·<code·class="inline">socket</code>·documentation·has·been·reworked,·and·due·to | 356 | since·the·release·of·OTP·26.</p><p>Own·Id:·OTP-18976·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/7125"·title="">PR-7125</a></p></li><li><p>An·optional·NIF·callback·<code·class="inline">ERL_NIF_OPT_ON_UNLOAD_THREAD</code>·to·be·called·by·all·scheduler·threads·when·a·NIF·library·is·unloaded.·Used·for·releasing·thread·specific·data.·Can·be·set·with·function·<code·class="inline">enif_set_option</code>.</p><p>Own·Id:·OTP-18977·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/7809"·title="">PR-7809</a></p></li><li><p>There·is·a·new·module·<a·href="../../../lib/kernel-10.3/doc/html/trace.html"><code·class="inline">trace</code></a>·in·Kernel·providing·the·same·trace·functionality·as·<a·href="erlang.html#trace/3"><code·class="inline">erlang:trace/3</code></a>·and·<a·href="erlang.html#trace_pattern/3"><code·class="inline">erlang:trace_pattern/3</code></a>,·but·with·the·addition·of·<strong>dynamic·isolated·trace·sessions</strong>.</p><p>Own·Id:·OTP-18980</p></li><li><p>Added·the·<code·class="inline">+MMlp·on|off</code>·emulator·option·to·let·the·<code·class="inline">mseg</code>·allocator·use·"large·pages"·(sometimes·known·as·"huge·pages"·or·"super·pages").·This·currently·only·affects·super-carrier·allocations,·but·may·be·extended·in·the·future.</p><p>Own·Id:·OTP-18984·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/7977"·title="">PR-7977</a></p></li><li><p><code·class="inline">inet_backend·=·socket</code>·has·been·optimized·and·reworked·to·be·more·compatible·with·the·original·<code·class="inline">inet_backend·=·inet</code>.</p><p>Own·Id:·OTP-19004·Aux·Id:·OTP-18835</p></li><li><p>The·<code·class="inline">socket</code>·documentation·has·been·reworked,·and·due·to |
| 357 | that·a·few·details·were·fixed:</p><ul><li><a·href="../../../lib/kernel-10.3/doc/html/socket.html#is_supported/1"><code·class="inline">socket:is_supported/1</code></a>·now·returns·<code·class="inline">true</code>·for·example·for·<code·class="inline">protocols</code> | 357 | that·a·few·details·were·fixed:</p><ul><li><a·href="../../../lib/kernel-10.3/doc/html/socket.html#is_supported/1"><code·class="inline">socket:is_supported/1</code></a>·now·returns·<code·class="inline">true</code>·for·example·for·<code·class="inline">protocols</code> |
| 358 | that·is·a·"category",·not·an·item.</li><li><a·href="../../../lib/kernel-10.3/doc/html/socket.html#cancel_monitor/1"><code·class="inline">socket:cancel_monitor/1</code></a>·no·longer·badargs·for·a·monitor·that·was·set·by | 358 | that·is·a·"category",·not·an·item.</li><li><a·href="../../../lib/kernel-10.3/doc/html/socket.html#cancel_monitor/1"><code·class="inline">socket:cancel_monitor/1</code></a>·no·longer·badargs·for·a·monitor·that·was·set·by |
| Offset 3339, 17 lines modified | Offset 3339, 17 lines modified | ||
| 3339 | markedly·so·when·the·maximum·number·of·file·descriptors·has·been·tuned·to·a | 3339 | markedly·so·when·the·maximum·number·of·file·descriptors·has·been·tuned·to·a |
| 3340 | large·number.</p><p>Instead,·in·erl_child_setup,·walk·the·open·descriptors·under·<code·class="inline">/dev/fd</code>·and | 3340 | large·number.</p><p>Instead,·in·erl_child_setup,·walk·the·open·descriptors·under·<code·class="inline">/dev/fd</code>·and |
| 3341 | close·only·those·which·are·open.</p><p>This·optimization·affects·the·CPU·usage·of·starting·a·new·Erlang·instance.</p><p>Own·Id:·OTP-16270</p></li><li><p>Optimized·<a·href="../../../lib/stdlib-7.0/doc/html/maps.html#merge/2"><code·class="inline">maps:merge/2</code></a>·for·trivial·cases·of·an·empty·map(s)·or·same·map.</p><p>Own·Id:·OTP-16283·Aux·Id:·PR-2441</p></li><li><p>The·new·experimental·<code·class="inline">socket</code>·module·has·been·moved·to·the·Kernel·application.</p><p>Own·Id:·OTP-16312</p></li><li><p>Improved·the·presentation·of·allocations·and·carriers·in·the·<code·class="inline">instrument</code> | 3341 | close·only·those·which·are·open.</p><p>This·optimization·affects·the·CPU·usage·of·starting·a·new·Erlang·instance.</p><p>Own·Id:·OTP-16270</p></li><li><p>Optimized·<a·href="../../../lib/stdlib-7.0/doc/html/maps.html#merge/2"><code·class="inline">maps:merge/2</code></a>·for·trivial·cases·of·an·empty·map(s)·or·same·map.</p><p>Own·Id:·OTP-16283·Aux·Id:·PR-2441</p></li><li><p>The·new·experimental·<code·class="inline">socket</code>·module·has·been·moved·to·the·Kernel·application.</p><p>Own·Id:·OTP-16312</p></li><li><p>Improved·the·presentation·of·allocations·and·carriers·in·the·<code·class="inline">instrument</code> |
| 3342 | module.</p><p>Own·Id:·OTP-16327</p></li><li><p>As·announced·in·OTP·22.0,·the·previously·existing·limited·support·for·VxWorks | 3342 | module.</p><p>Own·Id:·OTP-16327</p></li><li><p>As·announced·in·OTP·22.0,·the·previously·existing·limited·support·for·VxWorks |
| 3343 | has·now·been·removed.</p><p>*<strong>·POTENTIAL·INCOMPATIBILITY·*</strong></p><p>Own·Id:·OTP-16329·Aux·Id:·OTP-15621</p></li><li><p>The·return·value·when·using·the·<code·class="inline">httph</code>·and·<code·class="inline">httph_bin</code>·option·to | 3343 | has·now·been·removed.</p><p>*<strong>·POTENTIAL·INCOMPATIBILITY·*</strong></p><p>Own·Id:·OTP-16329·Aux·Id:·OTP-15621</p></li><li><p>The·return·value·when·using·the·<code·class="inline">httph</code>·and·<code·class="inline">httph_bin</code>·option·to |
| 3344 | <a·href="erlang.html#decode_packet/3"><code·class="inline">erlang:decode_packet/3</code></a>·and·<a·href="../../../lib/kernel-10.3/doc/html/inet.html#setopts/2"><code·class="inline">inet:setopts/2</code></a>·has·been·changed·to·also·include | 3344 | <a·href="erlang.html#decode_packet/3"><code·class="inline">erlang:decode_packet/3</code></a>·and·<a·href="../../../lib/kernel-10.3/doc/html/inet.html#setopts/2"><code·class="inline">inet:setopts/2</code></a>·has·been·changed·to·also·include |
| 3345 | the·original·header·unmodified.·See·<a·href="erlang.html#decode_packet/3"><code·class="inline">erlang:decode_packet/3</code></a>.·Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">·</span><span·class="o">></span><span·class="w"> | 3345 | the·original·header·unmodified.·See·<a·href="erlang.html#decode_packet/3"><code·class="inline">erlang:decode_packet/3</code></a>.·Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">·</span><span·class="o">></span><span·class="w"> |
| 3346 | ······</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">decode_packet</span><span·class="p"·data-group-id=" | 3346 | ······</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">decode_packet</span><span·class="p"·data-group-id="1957422061-1">(</span><span·class="ss">httph_bin</span><span·class="p">,</span><span·class="p"·data-group-id="1957422061-2"><<</span><span·class="s">"HELLO: |
| 3347 | ······hi\r\n\r\n"</span><span·class="p"·data-group-id="3366272680-2">>></span><span·class="p">,</span><span·class="p"·data-group-id="3366272680-3">[</span><span·class="p"·data-group-id="3366272680-3">]</span><span·class="p"·data-group-id="3366272680-1">)</span><span·class="p">.</span><span·class="w"> | ||
| 3348 | ······</span><span·class="p"·data-group-id=" | 3347 | ······hi\r\n\r\n"</span><span·class="p"·data-group-id="1957422061-2">>></span><span·class="p">,</span><span·class="p"·data-group-id="1957422061-3">[</span><span·class="p"·data-group-id="1957422061-3">]</span><span·class="p"·data-group-id="1957422061-1[·...·truncated·by·diffoscope;·len:·50,·SHA:·7c76ffcbdd2b9b0809992215d4bc03869c03819d4f2872424fd7856db727c221·...·] |
| 3348 | ······</span><span·class="p"·data-group-id="1957422061-4">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="p"·data-group-id="1957422061-5">{</span><span·class="ss">http_header</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="p"·data-group-id="1957422061-6"><<</span><span·class="s">"Hello"</span><span·class="p"·data-group-id="1957422061-6">>></span><span·class="p">,</span><span·class="p"·data-group-id="1957422061-7"><<</span><span·class="s">"HELLO"</span><span·class="p"·data-group-id="1957422061-7">>></span><span·class="p">,</span><span·class="p"·data-group-id="1957422061-8"><<</span><span·class="s">"hi"</span><span·class="p"·data-group-id="1957422061-8">>></span><span·class="p"·data-group-id="1957422061-5">}</span><span·class="p">,</span><span·class="p"·data-group-id="1957422061-9"><<</span><span·class="s">"\r\n"</span><span·class="p"·data-group-id="1957422061-9">>></span><span·class="p"·data-group-id="1957422061-4">}</span></code></pre><p>Own·Id:·OTP-16347·Aux·Id:·PR-2466</p></li><li><p>Ensure·<a·href="../../../lib/kernel-10.3/doc/html/net_kernel.html#monitor_nodes/1"><code·class="inline">net_kernel:monitor_nodes/1</code></a>·sends·<code·class="inline">nodedown</code>·messages·of·a·failed | ||
| 3349 | connection·before·<code·class="inline">nodeup</code>·messages·of·a·reestablished·connection·toward·the | 3349 | connection·before·<code·class="inline">nodeup</code>·messages·of·a·reestablished·connection·toward·the |
| 3350 | same·node.</p><p>Own·Id:·OTP-16362</p></li><li><p>Update·of·<a·href="../../../lib/kernel-10.3/doc/html/seq_trace.html#whatis">sequential·tracing</a>·to·also·support·other | 3350 | same·node.</p><p>Own·Id:·OTP-16362</p></li><li><p>Update·of·<a·href="../../../lib/kernel-10.3/doc/html/seq_trace.html#whatis">sequential·tracing</a>·to·also·support·other |
| 3351 | information·transfers·than·message·passing.</p><p>Own·Id:·OTP-16370·Aux·Id:·OTP-15251,·OTP-15232</p></li><li><p>socket:·It·is·now·possible·to·create·a·socket·from·an·already·existing·file | 3351 | information·transfers·than·message·passing.</p><p>Own·Id:·OTP-16370·Aux·Id:·OTP-15251,·OTP-15232</p></li><li><p>socket:·It·is·now·possible·to·create·a·socket·from·an·already·existing·file |
| 3352 | descriptor.</p><p>Own·Id:·OTP-16398·Aux·Id:·ERL-1154</p></li><li><p>socket:·The·socket:supports/1·function·now·also·report·if·netns·is·supported | 3352 | descriptor.</p><p>Own·Id:·OTP-16398·Aux·Id:·ERL-1154</p></li><li><p>socket:·The·socket:supports/1·function·now·also·report·if·netns·is·supported |
| 3353 | or·not.</p><p>Own·Id:·OTP-16432</p></li><li><p><code·class="inline">=:=</code>·has·been·optimized·to·return·<code·class="inline">false</code>·immediately·when·comparing·two·maps | 3353 | or·not.</p><p>Own·Id:·OTP-16432</p></li><li><p><code·class="inline">=:=</code>·has·been·optimized·to·return·<code·class="inline">false</code>·immediately·when·comparing·two·maps |
| 3354 | of·different·sizes.</p><p>Own·Id:·OTP-16454</p></li><li><p>Changed·the·behaviour·of·passing·the·<code·class="inline">erl</code>·command·line·argument | 3354 | of·different·sizes.</p><p>Own·Id:·OTP-16454</p></li><li><p>Changed·the·behaviour·of·passing·the·<code·class="inline">erl</code>·command·line·argument |
| 3355 | <a·href="erl_cmd.html#async_thread_pool_size"><code·class="inline">+A·0</code></a>·to·silently·imply·<code·class="inline">+A·1</code>.·That·is, | 3355 | <a·href="erl_cmd.html#async_thread_pool_size"><code·class="inline">+A·0</code></a>·to·silently·imply·<code·class="inline">+A·1</code>.·That·is, |
| Offset 11056, 20 lines modified | Offset 11056, 20 lines modified | ||
| 11056 | <ul><li><p>Previously·<a·href="erlang.html#unlink/1"><code·class="inline">unlink/1</code></a>·and·<a·href="erlang.html#demonitor/2"><code·class="inline">erlang:demonitor/2</code></a>·behaved | 11056 | <ul><li><p>Previously·<a·href="erlang.html#unlink/1"><code·class="inline">unlink/1</code></a>·and·<a·href="erlang.html#demonitor/2"><code·class="inline">erlang:demonitor/2</code></a>·behaved |
| 11057 | completely·asynchronous.·This·had·one·undesirable·effect,·though.·You·could | 11057 | completely·asynchronous.·This·had·one·undesirable·effect,·though.·You·could |
| 11058 | never·know·when·you·were·guaranteed·<em>not</em>·to·be·affected·by·a·link·that·you | 11058 | never·know·when·you·were·guaranteed·<em>not</em>·to·be·affected·by·a·link·that·you |
| 11059 | had·unlinked·or·a·monitor·that·you·had·demonitored.</p><p>The·new·behavior·of·<a·href="erlang.html#unlink/1"><code·class="inline">unlink/1</code></a>·and·<a·href="erlang.html#demonitor/2"><code·class="inline">erlang:demonitor/2</code></a>·can·be | 11059 | had·unlinked·or·a·monitor·that·you·had·demonitored.</p><p>The·new·behavior·of·<a·href="erlang.html#unlink/1"><code·class="inline">unlink/1</code></a>·and·<a·href="erlang.html#demonitor/2"><code·class="inline">erlang:demonitor/2</code></a>·can·be |
| 11060 | viewed·as·two·operations·performed·atomically.·Asynchronously·send·an·unlink | 11060 | viewed·as·two·operations·performed·atomically.·Asynchronously·send·an·unlink |
| 11061 | signal·or·a·demonitor·signal,·and·ignore·any·future·results·of·the·link·or | 11061 | signal·or·a·demonitor·signal,·and·ignore·any·future·results·of·the·link·or |
| 11062 | monitor.</p><p><em>NOTE</em>:·This·change·can·cause·some·obscure·code·to·fail·which·previously·did | 11062 | monitor.</p><p><em>NOTE</em>:·This·change·can·cause·some·obscure·code·to·fail·which·previously·did |
| 11063 | not.·For·example,·the·following·code·might·hang:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">············</span><span·class="n">Mon</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">monitor</span><span·class="p"·data-group-id=" | 11063 | not.·For·example,·the·following·code·might·hang:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">············</span><span·class="n">Mon</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">monitor</span><span·class="p"·data-group-id="0656986643-1">(</span><span·class="ss">process</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Pid</span><span·class="p"·data-group-id="0656986643-1">)</span><span·class="p">,</span><span·class="w"> |
| 11064 | ············</span><span·class="c1">%%·...</span><span·class="w"> | 11064 | ············</span><span·class="c1">%%·...</span><span·class="w"> |
| 11065 | ············</span><span·class="nf">exit</span><span·class="p"·data-group-id=" | 11065 | ············</span><span·class="nf">exit</span><span·class="p"·data-group-id="0656986643-2">(</span><span·class="n">Pid</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">bang</span><span·class="p"·data-group-id="0656986643-2">)</span><span·class="p">,</span><span·class="w"> |
| 11066 | ············</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">demonitor</span><span·class="p"·data-group-id=" | 11066 | ············</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">demonitor</span><span·class="p"·data-group-id="0656986643-3">(</span><span·class="n">Mon</span><span·class="p"·data-group-id="0656986643-3">)</span><span·class="p">,</span><span·class="w"> |
| 11067 | ············</span><span·class="k">receive</span><span·class="w"> | 11067 | ············</span><span·class="k">receive</span><span·class="w"> |
| 11068 | ················</span><span·class="p"·data-group-id=" | 11068 | ················</span><span·class="p"·data-group-id="0656986643-4">{</span><span·class="ss">'DOWN'</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Mon</span><span·class="w">·</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">process</span><span·class="p">,</[·...·truncated·by·diffoscope;·len:·168,·SHA:·649d43a9ab8feb3b995e43c9c1e08c88c09494cfb69b154f25cd895ce2a31756·...·]-4">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">ok</span><span·class="w"> |
| 11069 | ············</span><span·class="c1">%%·We·were·previously·guaranteed·to·get·a·down·message</span><span·class="w"> | 11069 | ············</span><span·class="c1">%%·We·were·previously·guaranteed·to·get·a·down·message</span><span·class="w"> |
| 11070 | ············</span><span·class="c1">%%·(since·we·exited·the·process·ourself),·so·we·could</span><span·class="w"> | 11070 | ············</span><span·class="c1">%%·(since·we·exited·the·process·ourself),·so·we·could</span><span·class="w"> |
| 11071 | ············</span><span·class="c1">%%·in·this·case·leave·out:</span><span·class="w"> | 11071 | ············</span><span·class="c1">%%·in·this·case·leave·out:</span><span·class="w"> |
| 11072 | ············</span><span·class="c1">%%·after·0·->·ok</span><span·class="w"> | 11072 | ············</span><span·class="c1">%%·after·0·->·ok</span><span·class="w"> |
| 11073 | ············</span><span·class="k">end</span><span·class="p">,</span></code></pre><p>*<strong>·POTENTIAL·INCOMPATIBILITY·*</strong></p><p>Own·Id:·OTP-5772</p></li><li><p>Two·bugs·fixed:·If·the·environment·variable·<code·class="inline">ERL_FLAGS</code>·was·set,·its·contents | 11073 | ············</span><span·class="k">end</span><span·class="p">,</span></code></pre><p>*<strong>·POTENTIAL·INCOMPATIBILITY·*</strong></p><p>Own·Id:·OTP-5772</p></li><li><p>Two·bugs·fixed:·If·the·environment·variable·<code·class="inline">ERL_FLAGS</code>·was·set,·its·contents |
| 11074 | would·be·appended·to·the·end·of·the·command·line·even·if·the·command·line·had | 11074 | would·be·appended·to·the·end·of·the·command·line·even·if·the·command·line·had |
| 11075 | an·<code·class="inline">-extra</code>·options.·Changed·to·place·the·options·from·<code·class="inline">ERL_FLAGS</code>·just·before | 11075 | an·<code·class="inline">-extra</code>·options.·Changed·to·place·the·options·from·<code·class="inline">ERL_FLAGS</code>·just·before |
| Offset 11615, 15 lines modified | Offset 11615, 15 lines modified | ||
| 11615 | ······<p·class="built-using"> | 11615 | ······<p·class="built-using"> |
| 11616 | ········Built·using | 11616 | ········Built·using |
| 11617 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 11617 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 11618 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 11618 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 11619 | ······</p> | 11619 | ······</p> |
| 11620 | <p>Copyright·©·1996-202 | 11620 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 11621 | ····</footer> | 11621 | ····</footer> |
| 11622 | ··</div> | 11622 | ··</div> |
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| 196 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 196 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 197 | ··</a> | 197 | ··</a> |
| 198 | ··<span·class="text">Example</span> | 198 | ··<span·class="text">Example</span> |
| 199 | </h2> | 199 | </h2> |
| 200 | <p>The·following·example·shows·how·lock·contention·for·ETS·tables·can·be·minimized | 200 | <p>The·following·example·shows·how·lock·contention·for·ETS·tables·can·be·minimized |
| 201 | by·having·one·ETS·table·for·each·scheduler.·The·table·identifiers·for·the·ETS | 201 | by·having·one·ETS·table·for·each·scheduler.·The·table·identifiers·for·the·ETS |
| 202 | tables·are·stored·as·a·single·persistent·term:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">····</span><span·class="c1">%%·There·is·one·ETS·table·for·each·scheduler.</span><span·class="w"> | 202 | tables·are·stored·as·a·single·persistent·term:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">····</span><span·class="c1">%%·There·is·one·ETS·table·for·each·scheduler.</span><span·class="w"> |
| 203 | ····</span><span·class="n">Sid</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">system_info</span><span·class="p"·data-group-id=" | 203 | ····</span><span·class="n">Sid</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">system_info</span><span·class="p"·data-group-id="9417452689-1">(</span><span·class="ss">scheduler_id</span><span·class="p"·data-group-id="9417452689-1">)</span><span·class="p">,</span><span·class="w"> |
| 204 | ····</span><span·class="n">Tid</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">element</span><span·class="p"·data-group-id=" | 204 | ····</span><span·class="n">Tid</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">element</span><span·class="p"·data-group-id="9417452689-2">(</span><span·class="n">Sid</span><span·class="p">,</span><span·class="w">·</span><span·class="nc">persistent_term</span><span·class="p">:</span><span·class="nf">get</span><span·class="p"·data-group-id="9417452689-3">(</span><span·class="o">?[·...·truncated·by·diffoscope;·len:·129,·SHA:·2efdf7d6ecdc29dbc69a120a7be9ff2a5e8c8f27bd695310bec373bb2d6a80d9·...·]9-2">)</span><span·class="p">,</span><span·class="w"> |
| 205 | ····</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">update_counter</span><span·class="p"·data-group-id=" | 205 | ····</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">update_counter</span><span·class="p"·data-group-id="9417452689-4">(</span><span·class="n">Tid</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Key</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">1</span><span·class="p"·data-group-id="9417452689-4">)</span><span·class="p">.</span></code></pre> |
| 206 | ····</section> | 206 | ····</section> |
| 207 | </div> | 207 | </div> |
| 208 | ··<section·id="summary"·class="details-list"> | 208 | ··<section·id="summary"·class="details-list"> |
| 209 | ····<h1·class="section-heading"> | 209 | ····<h1·class="section-heading"> |
| 210 | ······<a·class="hover-link"·href="#summary"> | 210 | ······<a·class="hover-link"·href="#summary"> |
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| 593 | ······<p·class="built-using"> | 593 | ······<p·class="built-using"> |
| 594 | ········Built·using | 594 | ········Built·using |
| 595 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 595 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 596 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 596 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 597 | ······</p> | 597 | ······</p> |
| 598 | <p>Copyright·©·1996-202 | 598 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 599 | ····</footer> | 599 | ····</footer> |
| 600 | ··</div> | 600 | ··</div> |
| 601 | </main> | 601 | </main> |
| 602 | </div> | 602 | </div> |
| 603 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 603 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 604 | ··<script> | 604 | ··<script> |
| 605 | ··let·initialized·=·false; | 605 | ··let·initialized·=·false; |
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| 399 | ······<p·class="built-using"> | 399 | ······<p·class="built-using"> |
| 400 | ········Built·using | 400 | ········Built·using |
| 401 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 401 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 402 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 402 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 403 | ······</p> | 403 | ······</p> |
| 404 | <p>Copyright·©·1996-202 | 404 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 405 | ····</footer> | 405 | ····</footer> |
| 406 | ··</div> | 406 | ··</div> |
| 407 | </main> | 407 | </main> |
| 408 | </div> | 408 | </div> |
| 409 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 409 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 410 | ··<script> | 410 | ··<script> |
| 411 | ··let·initialized·=·false; | 411 | ··let·initialized·=·false; |
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| 320 | ······<p·class="built-using"> | 320 | ······<p·class="built-using"> |
| 321 | ········Built·using | 321 | ········Built·using |
| 322 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 322 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 323 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 323 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 324 | ······</p> | 324 | ······</p> |
| 325 | <p>Copyright·©·1996-202 | 325 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 326 | ····</footer> | 326 | ····</footer> |
| 327 | ··</div> | 327 | ··</div> |
| 328 | </main> | 328 | </main> |
| 329 | </div> | 329 | </div> |
| 330 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 330 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 331 | ··<script> | 331 | ··<script> |
| 332 | ··let·initialized·=·false; | 332 | ··let·initialized·=·false; |
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| 456 | ······<p·class="built-using"> | 456 | ······<p·class="built-using"> |
| 457 | ········Built·using | 457 | ········Built·using |
| 458 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 458 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 459 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 459 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 460 | ······</p> | 460 | ······</p> |
| 461 | <p>Copyright·©·1996-202 | 461 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 462 | ····</footer> | 462 | ····</footer> |
| 463 | ··</div> | 463 | ··</div> |
| 464 | </main> | 464 | </main> |
| 465 | </div> | 465 | </div> |
| 466 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 466 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 467 | ··<script> | 467 | ··<script> |
| 468 | ··let·initialized·=·false; | 468 | ··let·initialized·=·false; |
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| 247 | ······<p·class="built-using"> | 247 | ······<p·class="built-using"> |
| 248 | ········Built·using | 248 | ········Built·using |
| 249 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 249 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 250 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 250 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 251 | ······</p> | 251 | ······</p> |
| 252 | <p>Copyright·©·1996-202 | 252 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 253 | ····</footer> | 253 | ····</footer> |
| 254 | ··</div> | 254 | ··</div> |
| 255 | </main> | 255 | </main> |
| 256 | </div> | 256 | </div> |
| 257 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 257 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 258 | ··<script> | 258 | ··<script> |
| 259 | ··let·initialized·=·false; | 259 | ··let·initialized·=·false; |
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| 137 | ······<p·class="built-using"> | 137 | ······<p·class="built-using"> |
| 138 | ········Built·using | 138 | ········Built·using |
| 139 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 139 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 140 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 140 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 141 | ······</p> | 141 | ······</p> |
| 142 | <p>Copyright·©·1996-202 | 142 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 143 | ····</footer> | 143 | ····</footer> |
| 144 | ··</div> | 144 | ··</div> |
| 145 | </main> | 145 | </main> |
| 146 | </div> | 146 | </div> |
| 147 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 147 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 148 | ··<script> | 148 | ··<script> |
| 149 | ··let·initialized·=·false; | 149 | ··let·initialized·=·false; |
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| 184 | ······<p·class="built-using"> | 184 | ······<p·class="built-using"> |
| 185 | ········Built·using | 185 | ········Built·using |
| 186 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 186 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 187 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 187 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 188 | ······</p> | 188 | ······</p> |
| 189 | <p>Copyright·©·1996-202 | 189 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 190 | ····</footer> | 190 | ····</footer> |
| 191 | ··</div> | 191 | ··</div> |
| 192 | </main> | 192 | </main> |
| 193 | </div> | 193 | </div> |
| 194 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 194 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 195 | ··<script> | 195 | ··<script> |
| 196 | ··let·initialized·=·false; | 196 | ··let·initialized·=·false; |
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| 230 | ······<p·class="built-using"> | 230 | ······<p·class="built-using"> |
| 231 | ········Built·using | 231 | ········Built·using |
| 232 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 232 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 233 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 233 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 234 | ······</p> | 234 | ······</p> |
| 235 | <p>Copyright·©·1996-202 | 235 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 236 | ····</footer> | 236 | ····</footer> |
| 237 | ··</div> | 237 | ··</div> |
| 238 | </main> | 238 | </main> |
| 239 | </div> | 239 | </div> |
| 240 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 240 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 241 | ··<script> | 241 | ··<script> |
| 242 | ··let·initialized·=·false; | 242 | ··let·initialized·=·false; |
| Offset 225, 20 lines modified | Offset 225, 20 lines modified | ||
| 225 | (alloc_util·and·the·different·strategies).·However,·that·would·not·be | 225 | (alloc_util·and·the·different·strategies).·However,·that·would·not·be |
| 226 | as·straight·forward·as·one·can·think·and·can·also·waste·quite·a·lot·of | 226 | as·straight·forward·as·one·can·think·and·can·also·waste·quite·a·lot·of |
| 227 | memory·as·it·uses·prepended·block·headers.·The·granularity·of·the | 227 | memory·as·it·uses·prepended·block·headers.·The·granularity·of·the |
| 228 | super·carrier·is·one·memory·page·(usually·4kb).·We·want·to·allocate | 228 | super·carrier·is·one·memory·page·(usually·4kb).·We·want·to·allocate |
| 229 | and·free·entire·pages·and·we·don't·want·to·waste·an·entire·page·just | 229 | and·free·entire·pages·and·we·don't·want·to·waste·an·entire·page·just |
| 230 | to·hold·the·block·header·of·the·following·pages.</p><p>Instead·we·store·the·meta·information·about·all·the·free·segments·in·a | 230 | to·hold·the·block·header·of·the·following·pages.</p><p>Instead·we·store·the·meta·information·about·all·the·free·segments·in·a |
| 231 | dedicated·area·apart·from·the·<code·class="inline">sa</code>·and·<code·class="inline">sua</code>·areas.·Every·free·segment·is | 231 | dedicated·area·apart·from·the·<code·class="inline">sa</code>·and·<code·class="inline">sua</code>·areas.·Every·free·segment·is |
| 232 | represented·by·a·descriptor·struct·(<code·class="inline">ErtsFreeSegDesc</code>).</p><pre><code·class="makeup·erlang"·translate="no"><span·class="ss">typedef</span><span·class="w">·</span><span·class="ss">struct</span><span·class="w">·</span><span·class="p"·data-group-id=" | 232 | represented·by·a·descriptor·struct·(<code·class="inline">ErtsFreeSegDesc</code>).</p><pre><code·class="makeup·erlang"·translate="no"><span·class="ss">typedef</span><span·class="w">·</span><span·class="ss">struct</span><span·class="w">·</span><span·class="p"·data-group-id="8110796416-1">{</span><span·class="w"> |
| 233 | ····</span><span·class="n">RBTNode</span><span·class="w">·</span><span·class="ss">snode</span><span·class="p">;</span><span·class="w">······</span><span·class="o">/</span><span·class="o">*</span><span·class="w">·</span><span·class="nb">node</span><span·class="w">·</span><span·class="ss">in</span><span·class="w">·</span><span·class="ss">'stree'</span><span·class="w">·</span><span·class="o">*</span><span·class="o">/</span><span·class="w"> | 233 | ····</span><span·class="n">RBTNode</span><span·class="w">·</span><span·class="ss">snode</span><span·class="p">;</span><span·class="w">······</span><span·class="o">/</span><span·class="o">*</span><span·class="w">·</span><span·class="nb">node</span><span·class="w">·</span><span·class="ss">in</span><span·class="w">·</span><span·class="ss">'stree'</span><span·class="w">·</span><span·class="o">*</span><span·class="o">/</span><span·class="w"> |
| 234 | ····</span><span·class="n">RBTNode</span><span·class="w">·</span><span·class="ss">anode</span><span·class="p">;</span><span·class="w">······</span><span·class="o">/</span><span·class="o">*</span><span·class="w">·</span><span·class="nb">node</span><span·class="w">·</span><span·class="ss">in</span><span·class="w">·</span><span·class="ss">'atree'</span><span·class="w">·</span><span·class="o">*</span><span·class="o">/</span><span·class="w"> | 234 | ····</span><span·class="n">RBTNode</span><span·class="w">·</span><span·class="ss">anode</span><span·class="p">;</span><span·class="w">······</span><span·class="o">/</span><span·class="o">*</span><span·class="w">·</span><span·class="nb">node</span><span·class="w">·</span><span·class="ss">in</span><span·class="w">·</span><span·class="ss">'atree'</span><span·class="w">·</span><span·class="o">*</span><span·class="o">/</span><span·class="w"> |
| 235 | ····</span><span·class="ss">char</span><span·class="o">*</span><span·class="w">·</span><span·class="ss">start</span><span·class="p">;</span><span·class="w"> | 235 | ····</span><span·class="ss">char</span><span·class="o">*</span><span·class="w">·</span><span·class="ss">start</span><span·class="p">;</span><span·class="w"> |
| 236 | ····</span><span·class="ss">char</span><span·class="o">*</span><span·class="w">·</span><span·class="k">end</span><span·class="p">;</span><span·class="w"> | 236 | ····</span><span·class="ss">char</span><span·class="o">*</span><span·class="w">·</span><span·class="k">end</span><span·class="p">;</span><span·class="w"> |
| 237 | </span><span·class="p"·data-group-id=" | 237 | </span><span·class="p"·data-group-id="8110796416-1">}</span><span·class="n">ErtsFreeSegDesc</span><span·class="p">;</span></code></pre><p>To·find·the·smallest·free·segment·that·will·satisfy·a·carrier·allocation |
| 238 | (best·fit),·the·free·segments·are·organized·in·a·tree·sorted·by | 238 | (best·fit),·the·free·segments·are·organized·in·a·tree·sorted·by |
| 239 | size·(<code·class="inline">stree</code>).·We·search·in·this·tree·at·allocation.·If·no·free·segment·of | 239 | size·(<code·class="inline">stree</code>).·We·search·in·this·tree·at·allocation.·If·no·free·segment·of |
| 240 | sufficient·size·was·found,·the·area·(<code·class="inline">sa</code>·or·<code·class="inline">sua</code>)·is·instead·expanded. | 240 | sufficient·size·was·found,·the·area·(<code·class="inline">sa</code>·or·<code·class="inline">sua</code>)·is·instead·expanded. |
| 241 | If·two·or·more·free·segments·with·equal·size·exist,·the·one·at·lowest | 241 | If·two·or·more·free·segments·with·equal·size·exist,·the·one·at·lowest |
| 242 | address·is·chosen·for·<code·class="inline">sa</code>·and·highest·address·for·<code·class="inline">sua</code>.</p><p>At·carrier·deallocation,·we·want·to·coalesce·with·any·adjacent·free | 242 | address·is·chosen·for·<code·class="inline">sa</code>·and·highest·address·for·<code·class="inline">sua</code>.</p><p>At·carrier·deallocation,·we·want·to·coalesce·with·any·adjacent·free |
| 243 | segments,·to·form·one·large·free·segment.·To·do·that,·all·free | 243 | segments,·to·form·one·large·free·segment.·To·do·that,·all·free |
| 244 | segments·are·also·organized·in·a·tree·sorted·in·address·order·(<code·class="inline">atree</code>).</p><p>So,·in·total·we·keep·four·trees·of·free·descriptors·for·the·super | 244 | segments·are·also·organized·in·a·tree·sorted·in·address·order·(<code·class="inline">atree</code>).</p><p>So,·in·total·we·keep·four·trees·of·free·descriptors·for·the·super |
| Offset 317, 15 lines modified | Offset 317, 15 lines modified | ||
| 317 | ······<p·class="built-using"> | 317 | ······<p·class="built-using"> |
| 318 | ········Built·using | 318 | ········Built·using |
| 319 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 319 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 320 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 320 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 321 | ······</p> | 321 | ······</p> |
| 322 | <p>Copyright·©·1996-202 | 322 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 323 | ····</footer> | 323 | ····</footer> |
| 324 | ··</div> | 324 | ··</div> |
| 325 | </main> | 325 | </main> |
| 326 | </div> | 326 | </div> |
| 327 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 327 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 328 | ··<script> | 328 | ··<script> |
| 329 | ··let·initialized·=·false; | 329 | ··let·initialized·=·false; |
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| 422 | ······<p·class="built-using"> | 422 | ······<p·class="built-using"> |
| 423 | ········Built·using | 423 | ········Built·using |
| 424 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 424 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 425 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 425 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 426 | ······</p> | 426 | ······</p> |
| 427 | <p>Copyright·©·1996-202 | 427 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 428 | ····</footer> | 428 | ····</footer> |
| 429 | ··</div> | 429 | ··</div> |
| 430 | </main> | 430 | </main> |
| 431 | </div> | 431 | </div> |
| 432 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 432 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 433 | ··<script> | 433 | ··<script> |
| 434 | ··let·initialized·=·false; | 434 | ··let·initialized·=·false; |
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| 560 | the·event·occurs.</p></section><section·role="note"·class="admonition·tip"><h4·class="admonition-title·tip">Do</h4><p>Determine·the·order·of·events·by·saving·the·integer·returned·by | 560 | the·event·occurs.</p></section><section·role="note"·class="admonition·tip"><h4·class="admonition-title·tip">Do</h4><p>Determine·the·order·of·events·by·saving·the·integer·returned·by |
| 561 | <a·href="erlang.html#unique_integer/1"><code·class="inline">erlang:unique_integer([monotonic])</code></a>·when·the | 561 | <a·href="erlang.html#unique_integer/1"><code·class="inline">erlang:unique_integer([monotonic])</code></a>·when·the |
| 562 | event·occurs.·These·integers·are·strictly·monotonically·ordered·on·current | 562 | event·occurs.·These·integers·are·strictly·monotonically·ordered·on·current |
| 563 | runtime·system·instance·corresponding·to·creation·time.</p></section><h4>Determine·Order·of·Events·with·Time·of·the·Event</h4><section·role="note"·class="admonition·error"><h4·class="admonition-title·error">Dont</h4><p>Determine·the·order·of·events·by·saving·a·time·stamp·with·<a·href="erlang.html#now/0"><code·class="inline">erlang:now/0</code></a>·when | 563 | runtime·system·instance·corresponding·to·creation·time.</p></section><h4>Determine·Order·of·Events·with·Time·of·the·Event</h4><section·role="note"·class="admonition·error"><h4·class="admonition-title·error">Dont</h4><p>Determine·the·order·of·events·by·saving·a·time·stamp·with·<a·href="erlang.html#now/0"><code·class="inline">erlang:now/0</code></a>·when |
| 564 | the·event·occurs.</p></section><section·role="note"·class="admonition·tip"><h4·class="admonition-title·tip">Do</h4><p>Determine·the·order·of·events·by·saving·a·tuple·containing | 564 | the·event·occurs.</p></section><section·role="note"·class="admonition·tip"><h4·class="admonition-title·tip">Do</h4><p>Determine·the·order·of·events·by·saving·a·tuple·containing |
| 565 | <a·href="erlang.html#monotonic_time/0">monotonic·time</a>·and·a | 565 | <a·href="erlang.html#monotonic_time/0">monotonic·time</a>·and·a |
| 566 | <a·href="erlang.html#unique_integer/1">strictly·monotonically·increasing·integer</a>·as | 566 | <a·href="erlang.html#unique_integer/1">strictly·monotonically·increasing·integer</a>·as |
| 567 | follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Time</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">monotonic_time</span><span·class="p"·data-group-id=" | 567 | follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Time</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">monotonic_time</span><span·class="p"·data-group-id="0990425456-1">(</span><span·class="p"·data-group-id="0990425456-1">)</span><span·class="p">,</span><span·class="w"> |
| 568 | </span><span·class="n">UMI</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">unique_integer</span><span·class="p"·data-group-id=" | 568 | </span><span·class="n">UMI</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">unique_integer</span><span·class="p"·data-group-id="0990425456-2">(</span><span·class="p"·data-group-id="0990425456-3">[</span><span·class="ss">monotonic</span><span·class="p"·data-group-id="0990425456-3">]</span><span·class="p"·data-group-id="0990425456-2">)</span><span·class="p">,</span><span·class="w"> |
| 569 | </span><span·class="n">EventTag</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 569 | </span><span·class="n">EventTag</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="0990425456-4">{</span><span·class="n">Time</span><span·class="p">,</span><span·class="w">·</span><span·class="n">UMI</span><span·class="p"·data-group-id="0990425456-4">}</span></code></pre><p>These·tuples·are·strictly·monotonically·ordered·on·the·current·runtime·system |
| 570 | instance·according·to·creation·time.·It·is·important·that·the·monotonic·time | 570 | instance·according·to·creation·time.·It·is·important·that·the·monotonic·time |
| 571 | is·in·the·first·element·(the·most·significant·element·when·comparing | 571 | is·in·the·first·element·(the·most·significant·element·when·comparing |
| 572 | two-tuples).·Using·the·monotonic·time·in·the·tuples,·you·can·calculate·time | 572 | two-tuples).·Using·the·monotonic·time·in·the·tuples,·you·can·calculate·time |
| 573 | between·events.</p><p>If·you·are·interested·in·Erlang·system·time·at·the·time·when·the·event | 573 | between·events.</p><p>If·you·are·interested·in·Erlang·system·time·at·the·time·when·the·event |
| 574 | occurred,·you·can·also·save·the·time·offset·before·or·after·saving·the·events | 574 | occurred,·you·can·also·save·the·time·offset·before·or·after·saving·the·events |
| 575 | using·<a·href="erlang.html#time_offset/0"><code·class="inline">erlang:time_offset/0</code></a>.·Erlang·monotonic·time·added·with·the·time·offset | 575 | using·<a·href="erlang.html#time_offset/0"><code·class="inline">erlang:time_offset/0</code></a>.·Erlang·monotonic·time·added·with·the·time·offset |
| 576 | corresponds·to·Erlang·system·time.</p><p>If·you·are·executing·in·a·mode·where·time·offset·can·change,·and·you·want·to | 576 | corresponds·to·Erlang·system·time.</p><p>If·you·are·executing·in·a·mode·where·time·offset·can·change,·and·you·want·to |
| Offset 641, 15 lines modified | Offset 641, 15 lines modified | ||
| 641 | ······<p·class="built-using"> | 641 | ······<p·class="built-using"> |
| 642 | ········Built·using | 642 | ········Built·using |
| 643 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 643 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 644 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 644 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 645 | ······</p> | 645 | ······</p> |
| 646 | <p>Copyright·©·1996-202 | 646 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 647 | ····</footer> | 647 | ····</footer> |
| 648 | ··</div> | 648 | ··</div> |
| 649 | </main> | 649 | </main> |
| 650 | </div> | 650 | </div> |
| 651 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 651 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 652 | ··<script> | 652 | ··<script> |
| 653 | ··let·initialized·=·false; | 653 | ··let·initialized·=·false; |
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| 145 | on·functions·that·never·return,·as·each·call·pushes·a·frame·that·will | 145 | on·functions·that·never·return,·as·each·call·pushes·a·frame·that·will |
| 146 | never·be·removed.</p><p>Another·limitation·is·that·since·the·breakpoint·is·in·the·<em>callee</em>·and·not | 146 | never·be·removed.</p><p>Another·limitation·is·that·since·the·breakpoint·is·in·the·<em>callee</em>·and·not |
| 147 | the·<em>caller</em>,·we're·limited·to·the·information·we·have·on·function·ingress. | 147 | the·<em>caller</em>,·we're·limited·to·the·information·we·have·on·function·ingress. |
| 148 | This·means·that·we·can't·actually·tell·who·called·us:·since·we're·limited | 148 | This·means·that·we·can't·actually·tell·who·called·us:·since·we're·limited |
| 149 | to·inspecting·the·stack·we·can·only·say·where·we're·<em>going·to·return·to</em>, | 149 | to·inspecting·the·stack·we·can·only·say·where·we're·<em>going·to·return·to</em>, |
| 150 | which·is·not·quite·the·same·thing.</p><p>As·an·illustration,·when·the·<code·class="inline">caller</code>·option·is·enabled·all·trace·messages | 150 | which·is·not·quite·the·same·thing.</p><p>As·an·illustration,·when·the·<code·class="inline">caller</code>·option·is·enabled·all·trace·messages |
| 151 | from·<code·class="inline">bar/1</code>··will·say·that·they·were·called·from·<code·class="inline">foo/0</code>,·even·though·it | 151 | from·<code·class="inline">bar/1</code>··will·say·that·they·were·called·from·<code·class="inline">foo/0</code>,·even·though·it |
| 152 | went·through·a·bunch·of·other·functions·on·the·way:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">foo</span><span·class="p"·data-group-id="6 | 152 | went·through·a·bunch·of·other·functions·on·the·way:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">foo</span><span·class="p"·data-group-id="6328975830-1">(</span><span·class="p"·data-group-id="6328975830-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 153 | ····</span><span·class="nf">lots</span><span·class="p"·data-group-id="6 | 153 | ····</span><span·class="nf">lots</span><span·class="p"·data-group-id="6328975830-2">(</span><span·class="p"·data-group-id="6328975830-2">)</span><span·class="p">,</span><span·class="w"> |
| 154 | ····</span><span·class="ss">ok</span><span·class="p">.</span><span·class="w"> | 154 | ····</span><span·class="ss">ok</span><span·class="p">.</span><span·class="w"> |
| 155 | </span><span·class="nf">lots</span><span·class="p"·data-group-id="6 | 155 | </span><span·class="nf">lots</span><span·class="p"·data-group-id="6328975830-3">(</span><span·class="p"·data-group-id="6328975830-3">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 156 | ····</span><span·class="nf">'of'</span><span·class="p"·data-group-id="6 | 156 | ····</span><span·class="nf">'of'</span><span·class="p"·data-group-id="6328975830-4">(</span><span·class="p"·data-group-id="6328975830-4">)</span><span·class="p">.</span><span·class="w"> |
| 157 | </span><span·class="nf">'of'</span><span·class="p"·data-group-id="6 | 157 | </span><span·class="nf">'of'</span><span·class="p"·data-group-id="6328975830-5">(</span><span·class="p"·data-group-id="6328975830-5">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 158 | ····</span><span·class="nf">indirections</span><span·class="p"·data-group-id="6 | 158 | ····</span><span·class="nf">indirections</span><span·class="p"·data-group-id="6328975830-6">(</span><span·class="p"·data-group-id="6328975830-6">)</span><span·class="p">.</span><span·class="w"> |
| 159 | </span><span·class="nf">indirections</span><span·class="p"·data-group-id="6 | 159 | </span><span·class="nf">indirections</span><span·class="p"·data-group-id="6328975830-7">(</span><span·class="p"·data-group-id="6328975830-7">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 160 | ····</span><span·class="nf">bar</span><span·class="p"·data-group-id="6 | 160 | ····</span><span·class="nf">bar</span><span·class="p"·data-group-id="6328975830-8">(</span><span·class="mi">10</span><span·class="p"·data-group-id="6328975830-8">)</span><span·class="p">.</span><span·class="w"> |
| 161 | </span><span·class="nf">bar</span><span·class="p"·data-group-id="6 | 161 | </span><span·class="nf">bar</span><span·class="p"·data-group-id="6328975830-9">(</span><span·class="mi">0</span><span·class="p"·data-group-id="6328975830-9">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 162 | ····</span><span·class="ss">done</span><span·class="p">;</span><span·class="w"> | 162 | ····</span><span·class="ss">done</span><span·class="p">;</span><span·class="w"> |
| 163 | </span><span·class="nf">bar</span><span·class="p"·data-group-id="6 | 163 | </span><span·class="nf">bar</span><span·class="p"·data-group-id="6328975830-10">(</span><span·class="n">N</span><span·class="p"·data-group-id="6328975830-10">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 164 | ····</span><span·class="nf">bar</span><span·class="p"·data-group-id="6 | 164 | ····</span><span·class="nf">bar</span><span·class="p"·data-group-id="6328975830-11">(</span><span·class="n">N</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="mi">1</span><span·class="p"·data-group-id="6328975830-11">)</span><span·class="p">.</span></code></pre><h3·id="export-tracing"·class="section-heading"> |
| 165 | ··<a·href="#export-tracing"·class="hover-link"> | 165 | ··<a·href="#export-tracing"·class="hover-link"> |
| 166 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 166 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 167 | ··</a> | 167 | ··</a> |
| 168 | ··<span·class="text">Export·tracing</span> | 168 | ··<span·class="text">Export·tracing</span> |
| 169 | </h3> | 169 | </h3> |
| 170 | <p>In·the·interpreter,·breakpoints·are·set·inside·the·code·trampoline·for | 170 | <p>In·the·interpreter,·breakpoints·are·set·inside·the·code·trampoline·for |
| 171 | export·entries,·and·their·address·vector·is·updated·to·point·to·them. | 171 | export·entries,·and·their·address·vector·is·updated·to·point·to·them. |
| Offset 386, 15 lines modified | Offset 386, 15 lines modified | ||
| 386 | ······<p·class="built-using"> | 386 | ······<p·class="built-using"> |
| 387 | ········Built·using | 387 | ········Built·using |
| 388 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 388 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 389 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 389 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 390 | ······</p> | 390 | ······</p> |
| 391 | <p>Copyright·©·1996-202 | 391 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 392 | ····</footer> | 392 | ····</footer> |
| 393 | ··</div> | 393 | ··</div> |
| 394 | </main> | 394 | </main> |
| 395 | </div> | 395 | </div> |
| 396 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 396 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 397 | ··<script> | 397 | ··<script> |
| 398 | ··let·initialized·=·false; | 398 | ··let·initialized·=·false; |
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| 191 | ······<p·class="built-using"> | 191 | ······<p·class="built-using"> |
| 192 | ········Built·using | 192 | ········Built·using |
| 193 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 193 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 194 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 194 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 195 | ······</p> | 195 | ······</p> |
| 196 | <p>Copyright·©·1996-202 | 196 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 197 | ····</footer> | 197 | ····</footer> |
| 198 | ··</div> | 198 | ··</div> |
| 199 | </main> | 199 | </main> |
| 200 | </div> | 200 | </div> |
| 201 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 201 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 202 | ··<script> | 202 | ··<script> |
| 203 | ··let·initialized·=·false; | 203 | ··let·initialized·=·false; |
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| 196 | ······<p·class="built-using"> | 196 | ······<p·class="built-using"> |
| 197 | ········Built·using | 197 | ········Built·using |
| 198 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 198 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 199 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 199 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 200 | ······</p> | 200 | ······</p> |
| 201 | <p>Copyright·©·1996-202 | 201 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 202 | ····</footer> | 202 | ····</footer> |
| 203 | ··</div> | 203 | ··</div> |
| 204 | </main> | 204 | </main> |
| 205 | </div> | 205 | </div> |
| 206 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 206 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 207 | ··<script> | 207 | ··<script> |
| 208 | ··let·initialized·=·false; | 208 | ··let·initialized·=·false; |
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| 129 | ····<section·id="moduledoc"> | 129 | ····<section·id="moduledoc"> |
| 130 | <p>zlib·compression·interface.</p><p>This·module·provides·an·API·for·the·zlib·library | 130 | <p>zlib·compression·interface.</p><p>This·module·provides·an·API·for·the·zlib·library |
| 131 | (<a·href="http://www.zlib.net">www.zlib.net</a>).·It·is·used·to·compress·and·decompress | 131 | (<a·href="http://www.zlib.net">www.zlib.net</a>).·It·is·used·to·compress·and·decompress |
| 132 | data.·The·data·format·is·described·by | 132 | data.·The·data·format·is·described·by |
| 133 | <a·href="https://www.ietf.org/rfc/rfc1950.txt">RFC·1950</a>, | 133 | <a·href="https://www.ietf.org/rfc/rfc1950.txt">RFC·1950</a>, |
| 134 | <a·href="https://www.ietf.org/rfc/rfc1951.txt">RFC·1951</a>,·and | 134 | <a·href="https://www.ietf.org/rfc/rfc1951.txt">RFC·1951</a>,·and |
| 135 | <a·href="https://www.ietf.org/rfc/rfc1952.txt">RFC·1952</a>.</p><p>A·typical·(compress)·usage·is·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Z</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">zlib</span><span·class="p">:</span><span·class="nf">open</span><span·class="p"·data-group-id=" | 135 | <a·href="https://www.ietf.org/rfc/rfc1952.txt">RFC·1952</a>.</p><p>A·typical·(compress)·usage·is·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Z</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">zlib</span><span·class="p">:</span><span·class="nf">open</span><span·class="p"·data-group-id="7483162573-1">(</span><span·class="p"·data-group-id="7483162573-1">)</span><span·class="p">,</span><span·class="w"> |
| 136 | </span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">zlib</span><span·class="p">:</span><span·class="nf">deflateInit</span><span·class="p"·data-group-id=" | 136 | </span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">zlib</span><span·class="p">:</span><span·class="nf">deflateInit</span><span·class="p"·data-group-id="7483162573-2">(</span><span·class="n">Z</span><span·class="p">,</span><span·class="ss">default</span><span·class="p"·data-group-id="7483162573-2">)</span><span·class="p">,</span><span·class="w"> |
| 137 | </span><span·class="n">Compress</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="k">fun</span><span·class="w">·</span><span·class="n">F</span><span·class="p"·data-group-id=" | 137 | </span><span·class="n">Compress</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="k">fun</span><span·class="w">·</span><span·class="n">F</span><span·class="p"·data-group-id="7483162573-3">(</span><span·class="ss">end_of_data</span><span·class="p"·data-group-id="7483162573-3">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 138 | ·················</span><span·class="nc">zlib</span><span·class="p">:</span><span·class="nf">deflate</span><span·class="p"·data-group-id=" | 138 | ·················</span><span·class="nc">zlib</span><span·class="p">:</span><span·class="nf">deflate</span><span·class="p"·data-group-id="7483162573-4">(</span><span·class="n">Z</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="7483162573-5">[</span><span·class="p"·data-group-id="7483162573-5">]</span><span·class="p">,</span><span·class="w">·</span><span·cl[·...·truncated·by·diffoscope;·len:·62,·SHA:·b875dfd4f9ac093e3880c43118897509dcd8616559ecce4e3d0d35b94be59557·...·]3-4">)</span><span·class="p">;</span><span·class="w"> |
| 139 | ···············</span><span·class="n">F</span><span·class="p"·data-group-id=" | 139 | ···············</span><span·class="n">F</span><span·class="p"·data-group-id="7483162573-6">(</span><span·class="n">Data</span><span·class="p"·data-group-id="7483162573-6">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 140 | ·················</span><span·class="p"·data-group-id=" | 140 | ·················</span><span·class="p"·data-group-id="7483162573-7">[</span><span·class="nc">zlib</span><span·class="p">:</span><span·class="nf">deflate</span><span·class="p"·data-group-id="7483162573-8">(</span><span·class="n">Z</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Data</span[·...·truncated·by·diffoscope;·len:·383,·SHA:·cc267a2e39f52f15c79a47e26973ec6fb84920598892aa2efc76e30b1f132205·...·]3-7">]</span><span·class="w"> |
| 141 | ···········</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> | 141 | ···········</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> |
| 142 | </span><span·class="n">Compressed</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">Compress</span><span·class="p"·data-group-id=" | 142 | </span><span·class="n">Compressed</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">Compress</span><span·class="p"·data-group-id="7483162573-11">(</span><span·class="n">Read</span><span·class="p"·data-group-id="7483162573-12">(</span><span·class="p"·data-group-id="7483162573-12">)</span><span·class="p"·data-group-id="7483162573-11">)</span><span·class="p">,</span><span·class="w"> |
| 143 | </span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">zlib</span><span·class="p">:</span><span·class="nf">deflateEnd</span><span·class="p"·data-group-id=" | 143 | </span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">zlib</span><span·class="p">:</span><span·class="nf">deflateEnd</span><span·class="p"·data-group-id="7483162573-13">(</span><span·class="n">Z</span><span·class="p"·data-group-id="7483162573-13">)</span><span·class="p">,</span><span·class="w"> |
| 144 | </span><span·class="nc">zlib</span><span·class="p">:</span><span·class="nf">close</span><span·class="p"·data-group-id=" | 144 | </span><span·class="nc">zlib</span><span·class="p">:</span><span·class="nf">close</span><span·class="p"·data-group-id="7483162573-14">(</span><span·class="n">Z</span><span·class="p"·data-group-id="7483162573-14">)</span><span·class="p">,</span><span·class="w"> |
| 145 | </span><span·class="nf">list_to_binary</span><span·class="p"·data-group-id=" | 145 | </span><span·class="nf">list_to_binary</span><span·class="p"·data-group-id="7483162573-15">(</span><span·class="n">Compressed</span><span·class="p"·data-group-id="7483162573-15">)</span></code></pre><p>In·all·functions·errors,·<code·class="inline">{'EXIT',{Reason,Backtrace}}</code>,·can·be·thrown,·where |
| 146 | <code·class="inline">Reason</code>·describes·the·error.</p><p>Typical·<code·class="inline">Reason</code>s:</p><ul><li><p><strong><code·class="inline">badarg</code></strong>·-·Bad·argument.</p></li><li><p><strong><code·class="inline">not_initialized</code></strong>·-·The·stream·hasn't·been·initialized,·eg.·if | 146 | <code·class="inline">Reason</code>·describes·the·error.</p><p>Typical·<code·class="inline">Reason</code>s:</p><ul><li><p><strong><code·class="inline">badarg</code></strong>·-·Bad·argument.</p></li><li><p><strong><code·class="inline">not_initialized</code></strong>·-·The·stream·hasn't·been·initialized,·eg.·if |
| 147 | <a·href="#inflateInit/1"><code·class="inline">inflateInit/1</code></a>·wasn't·called·prior·to·a·call·to·<a·href="#inflate/2"><code·class="inline">inflate/2</code></a>.</p></li><li><p><strong><code·class="inline">not_on_controlling_process</code></strong>·-·The·stream·was·used·by·a·process·that | 147 | <a·href="#inflateInit/1"><code·class="inline">inflateInit/1</code></a>·wasn't·called·prior·to·a·call·to·<a·href="#inflate/2"><code·class="inline">inflate/2</code></a>.</p></li><li><p><strong><code·class="inline">not_on_controlling_process</code></strong>·-·The·stream·was·used·by·a·process·that |
| 148 | doesn't·control·it.·Use·<a·href="#set_controlling_process/2"><code·class="inline">set_controlling_process/2</code></a>·if·you·need·to·transfer·a | 148 | doesn't·control·it.·Use·<a·href="#set_controlling_process/2"><code·class="inline">set_controlling_process/2</code></a>·if·you·need·to·transfer·a |
| 149 | stream·to·a·different·process.</p></li><li><p><strong><code·class="inline">data_error</code></strong>·-·The·data·contains·errors.</p></li><li><p><strong><code·class="inline">stream_error</code></strong>·-·Inconsistent·stream·state.</p></li><li><p><strong><code·class="inline">{need_dictionary,Adler32}</code></strong>·-·See·<a·href="#inflate/2"><code·class="inline">inflate/2</code></a>.</p></li></ul> | 149 | stream·to·a·different·process.</p></li><li><p><strong><code·class="inline">data_error</code></strong>·-·The·data·contains·errors.</p></li><li><p><strong><code·class="inline">stream_error</code></strong>·-·Inconsistent·stream·state.</p></li><li><p><strong><code·class="inline">{need_dictionary,Adler32}</code></strong>·-·See·<a·href="#inflate/2"><code·class="inline">inflate/2</code></a>.</p></li></ul> |
| 150 | ····</section> | 150 | ····</section> |
| 151 | </div> | 151 | </div> |
| Offset 827, 19 lines modified | Offset 827, 19 lines modified | ||
| 827 | all·input·data·available·so·far.·Flushing·can·degrade·compression·for·some | 827 | all·input·data·available·so·far.·Flushing·can·degrade·compression·for·some |
| 828 | compression·algorithms;·thus,·use·it·only·when·necessary.</p><p>If·<code·class="inline">Flush</code>·is·set·to·<code·class="inline">full</code>,·all·output·is·flushed·as·with·<code·class="inline">sync</code>,·and·the | 828 | compression·algorithms;·thus,·use·it·only·when·necessary.</p><p>If·<code·class="inline">Flush</code>·is·set·to·<code·class="inline">full</code>,·all·output·is·flushed·as·with·<code·class="inline">sync</code>,·and·the |
| 829 | compression·state·is·reset·so·that·decompression·can·restart·from·this·point·if | 829 | compression·state·is·reset·so·that·decompression·can·restart·from·this·point·if |
| 830 | previous·compressed·data·has·been·damaged·or·if·random·access·is·desired.·Using | 830 | previous·compressed·data·has·been·damaged·or·if·random·access·is·desired.·Using |
| 831 | <code·class="inline">full</code>·too·often·can·seriously·degrade·the·compression.</p><p>If·<code·class="inline">Flush</code>·is·set·to·<code·class="inline">finish</code>,·pending·input·is·processed,·pending·output·is | 831 | <code·class="inline">full</code>·too·often·can·seriously·degrade·the·compression.</p><p>If·<code·class="inline">Flush</code>·is·set·to·<code·class="inline">finish</code>,·pending·input·is·processed,·pending·output·is |
| 832 | flushed,·and·<a·href="#deflate/3"><code·class="inline">deflate/3</code></a>·returns.·Afterwards·the·only·possible | 832 | flushed,·and·<a·href="#deflate/3"><code·class="inline">deflate/3</code></a>·returns.·Afterwards·the·only·possible |
| 833 | operations·on·the·stream·are·<a·href="#deflateReset/1"><code·class="inline">deflateReset/1</code></a>·or·<a·href="#deflateEnd/1"><code·class="inline">deflateEnd/1</code></a>.</p><p><code·class="inline">Flush</code>·can·be·set·to·<code·class="inline">finish</code>·immediately·after | 833 | operations·on·the·stream·are·<a·href="#deflateReset/1"><code·class="inline">deflateReset/1</code></a>·or·<a·href="#deflateEnd/1"><code·class="inline">deflateEnd/1</code></a>.</p><p><code·class="inline">Flush</code>·can·be·set·to·<code·class="inline">finish</code>·immediately·after |
| 834 | <a·href="#deflateInit/1"><code·class="inline">deflateInit</code></a>·if·all·compression·is·to·be·done·in·one·step.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">zlib</span><span·class="p">:</span><span·class="nf">deflateInit</span><span·class="p"·data-group-id="6 | 834 | <a·href="#deflateInit/1"><code·class="inline">deflateInit</code></a>·if·all·compression·is·to·be·done·in·one·step.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">zlib</span><span·class="p">:</span><span·class="nf">deflateInit</span><span·class="p"·data-group-id="6861350999-1">(</span><span·class="n">Z</span><span·class="p"·data-group-id="6861350999-1">)</span><span·class="p">,</span><span·class="w"> |
| 835 | </span><span·class="n">B1</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">zlib</span><span·class="p">:</span><span·class="nf">deflate</span><span·class="p"·data-group-id="6 | 835 | </span><span·class="n">B1</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">zlib</span><span·class="p">:</span><span·class="nf">deflate</span><span·class="p"·data-group-id="6861350999-2">(</span><span·class="n">Z</span><span·class="p">,</span><span·class="n">Data</span><span·class="p"·data-group-id="6861350999-2">)</span><span·class="p">,</span><span·class="w"> |
| 836 | </span><span·class="n">B2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">zlib</span><span·class="p">:</span><span·class="nf">deflate</span><span·class="p"·data-group-id="6 | 836 | </span><span·class="n">B2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">zlib</span><span·class="p">:</span><span·class="nf">deflate</span><span·class="p"·data-group-id="6861350999-3">(</span><span·class="n">Z</span><span·class="p">,</span><span·class="p"·data-group-id="6861350999-4"><<</span><span·class="w">·</span><span·class="p"·data-group-id="6861350999-4">>></span><span·class="p">,</span><span·class="ss">fi[·...·truncated·by·diffoscope;·len:·52,·SHA:·8b52b168c61a0fc3f798f984fad27adbdf1c483a9b53c308c484231edfb4a89c·...·]-3">)</span><span·class="p">,</span><span·class="w"> |
| 837 | </span><span·class="nc">zlib</span><span·class="p">:</span><span·class="nf">deflateEnd</span><span·class="p"·data-group-id="6 | 837 | </span><span·class="nc">zlib</span><span·class="p">:</span><span·class="nf">deflateEnd</span><span·class="p"·data-group-id="6861350999-5">(</span><span·class="n">Z</span><span·class="p"·data-group-id="6861350999-5">)</span><span·class="p">,</span><span·class="w"> |
| 838 | </span><span·class="nf">list_to_binary</span><span·class="p"·data-group-id="6 | 838 | </span><span·class="nf">list_to_binary</span><span·class="p"·data-group-id="6861350999-6">(</span><span·class="p"·data-group-id="6861350999-7">[</span><span·class="n">B1</span><span·class="p">,</span><span·class="n">B2</span><span·class="p"·data-group-id="6861350999-7">]</span><span·class="p"·data-group-id="6861350999-6">)</span></code></pre> |
| 839 | ··</section> | 839 | ··</section> |
| 840 | </section> | 840 | </section> |
| 841 | <section·class="detail"·id="deflateEnd/1"> | 841 | <section·class="detail"·id="deflateEnd/1"> |
| 842 | ··<div·class="detail-header"> | 842 | ··<div·class="detail-header"> |
| 843 | ····<a·href="#deflateEnd/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 843 | ····<a·href="#deflateEnd/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 844 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 844 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 1349, 28 lines modified | Offset 1349, 28 lines modified | ||
| 1349 | <p>Initializes·the·decompression·dictionary·from·the·specified·uncompressed·byte | 1349 | <p>Initializes·the·decompression·dictionary·from·the·specified·uncompressed·byte |
| 1350 | sequence.</p><p>This·function·must·be·called·as·a·response·to·an·inflate·operation | 1350 | sequence.</p><p>This·function·must·be·called·as·a·response·to·an·inflate·operation |
| 1351 | (eg.·<a·href="#safeInflate/2"><code·class="inline">safeInflate/2</code></a>)·returning·<code·class="inline">{need_dictionary,Adler,Output}</code>·or·in·the·case | 1351 | (eg.·<a·href="#safeInflate/2"><code·class="inline">safeInflate/2</code></a>)·returning·<code·class="inline">{need_dictionary,Adler,Output}</code>·or·in·the·case |
| 1352 | of·deprecated·functions,·throwing·an | 1352 | of·deprecated·functions,·throwing·an |
| 1353 | <code·class="inline">{'EXIT',{{need_dictionary,Adler},_StackTrace}}</code>·exception.</p><p>The·dictionary·chosen·by·the·compressor·can·be·determined·from·the·Adler·value | 1353 | <code·class="inline">{'EXIT',{{need_dictionary,Adler},_StackTrace}}</code>·exception.</p><p>The·dictionary·chosen·by·the·compressor·can·be·determined·from·the·Adler·value |
| 1354 | returned·or·thrown·by·the·call·to·the·inflate·function.·The·compressor·and | 1354 | returned·or·thrown·by·the·call·to·the·inflate·function.·The·compressor·and |
| 1355 | decompressor·must·use·the·same·dictionary·(See·<a·href="#deflateSetDictionary/2"><code·class="inline">deflateSetDictionary/2</code></a>).</p><p>After·setting·the·dictionary·the·inflate·operation·should·be·retried·without·new | 1355 | decompressor·must·use·the·same·dictionary·(See·<a·href="#deflateSetDictionary/2"><code·class="inline">deflateSetDictionary/2</code></a>).</p><p>After·setting·the·dictionary·the·inflate·operation·should·be·retried·without·new |
| 1356 | input.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">deprecated_unpack</span><span·class="p"·data-group-id=" | 1356 | input.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">deprecated_unpack</span><span·class="p"·data-group-id="0400870348-1">(</span><span·class="n">Z</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Compressed</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Dict</span><span·class="p"·data-group-id="0400870348-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 1357 | ·····</span><span·class="k">case</span><span·class="w">·</span><span·class="k">catch</span><span·class="w">·</span><span·class="nc">zlib</span><span·class="p">:</span><span·class="nf">inflate</span><span·class="p"·data-group-id=" | 1357 | ·····</span><span·class="k">case</span><span·class="w">·</span><span·class="k">catch</span><span·class="w">·</span><span·class="nc">zlib</span><span·class="p">:</span><span·class="nf">inflate</span><span·class="p"·data-group-id="0400870348-2">(</span><span·class="n">Z</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Compressed</span><span·class="p"·data-group-id="0400870348-2">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 1358 | ··········</span><span·class="p"·data-group-id=" | 1358 | ··········</span><span·class="p"·data-group-id="0400870348-3">{</span><span·class="ss">'EXIT'</span><span·class="p">,</span><span·class="p"·data-group-id="0400870348-4">{</span><span·class="p"·data-group-id="0400870348-5">{</span><span·class="ss">need_dictionary</span><span·class="p">,</span><sp[·...·truncated·by·diffoscope;·len:·245,·SHA:·46fd3909264dbe6b63d7c7eb4f924ca3c998d2c697fa10f4fff5e99b496b3c6d·...·]-3">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 1359 | ·················</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">zlib</span><span·class="p">:</span><span·class="nf">inflateSetDictionary</span><span·class="p"·data-group-id=" | 1359 | ·················</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">zlib</span><span·class="p">:</span><span·class="nf">inflateSetDictionary</span><span·class="p"·data-group-id="0400870348-6">(</span><span·class="n">Z</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Dict</span><span·class="p"·data-group-id="0400870348-6">)</span><span·class="p">,</span><span·class="w"> |
| 1360 | ·················</span><span·class="n">Uncompressed</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">zlib</span><span·class="p">:</span><span·class="nf">inflate</span><span·class="p"·data-group-id=" | 1360 | ·················</span><span·class="n">Uncompressed</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">zlib</span><span·class="p">:</span><span·class="nf">inflate</span><span·class="p"·data-group-id="0400870348-7">(</span><span·class="n">Z</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0400870348-8">[</span><span·class="p"·data-group-id="0400870348-8">]</span><span·class="p"·data-group-id="0400870348-7">)</span><span·class="p">;</span><span·class="w"> |
| 1361 | ··········</span><span·class="n">Uncompressed</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 1361 | ··········</span><span·class="n">Uncompressed</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 1362 | ·················</span><span·class="n">Uncompressed</span><span·class="w"> | 1362 | ·················</span><span·class="n">Uncompressed</span><span·class="w"> |
| 1363 | ·····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> | 1363 | ·····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> |
| 1364 | </span><span·class="nf">new_unpack</span><span·class="p"·data-group-id=" | 1364 | </span><span·class="nf">new_unpack</span><span·class="p"·data-group-id="0400870348-9">(</span><span·class="n">Z</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Compressed</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Dict</span><span·class="p"·data-group-id="0400870348-9">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 1365 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">zlib</span><span·class="p">:</span><span·class="nf">inflate</span><span·class="p"·data-group-id=" | 1365 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">zlib</span><span·class="p">:</span><span·class="nf">inflate</span><span·class="p"·data-group-id="0400870348-10">(</span><span·class="n">Z</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Compressed</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0400870348-11">[</span><span·class="p"·data-group[·...·truncated·by·diffoscope;·len:·300,·SHA:·5094518aea0a6dc18c334389eec9928fca344cdc45b0e78df32112b82587287c·...·]-10">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 1366 | ········</span><span·class="p"·data-group-id=" | 1366 | ········</span><span·class="p"·data-group-id="0400870348-13">{</span><span·class="ss">need_dictionary</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="n">DictId</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Output</span><span·class="p"·[·...·truncated·by·diffoscope;·len:·25,·SHA:·a441ea8cff64488fd02b017d36a198fb2035ff36f733529fe9a912990cd57364·...·]-13">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 1367 | ············</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">zlib</span><span·class="p">:</span><span·class="nf">inflateSetDictionary</span><span·class="p"·data-group-id=" | 1367 | ············</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">zlib</span><span·class="p">:</span><span·class="nf">inflateSetDictionary</span><span·class="p"·data-group-id="0400870348-14">(</span><span·class="n">Z</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Dict</span><span·class="p"·data-group-id="0400870348-14">)</span><span·class="p">,</span><span·class="w"> |
| 1368 | ············</span><span·class="p"·data-group-id=" | 1368 | ············</span><span·class="p"·data-group-id="0400870348-15">[</span><span·class="n">Output</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="nc">zlib</span><span·class="p">:</span><span·class="nf">inflate</span><span·class="p"·data-group-id="0400870348-16">(</[·...·truncated·by·diffoscope;·len:·280,·SHA:·90b9f9a848aaa574d01a919dc7221b89b3153522f0ee394dfe93f12ff96fe37c·...·]-15">]</span><span·class="p">;</span><span·class="w"> |
| 1369 | ········</span><span·class="n">Uncompressed</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 1369 | ········</span><span·class="n">Uncompressed</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 1370 | ············</span><span·class="n">Uncompressed</span><span·class="w"> | 1370 | ············</span><span·class="n">Uncompressed</span><span·class="w"> |
| 1371 | ····</span><span·class="k">end</span><span·class="p">.</span></code></pre> | 1371 | ····</span><span·class="k">end</span><span·class="p">.</span></code></pre> |
| 1372 | ··</section> | 1372 | ··</section> |
| 1373 | </section> | 1373 | </section> |
| 1374 | <section·class="detail"·id="open/0"> | 1374 | <section·class="detail"·id="open/0"> |
| Offset 1434, 26 lines modified | Offset 1434, 26 lines modified | ||
| 1434 | implementation-defined·threshold.·It's·useful·when·decompressing·untrusted·input | 1434 | implementation-defined·threshold.·It's·useful·when·decompressing·untrusted·input |
| 1435 | which·could·have·been·maliciously·crafted·to·expand·until·the·system·runs·out·of | 1435 | which·could·have·been·maliciously·crafted·to·expand·until·the·system·runs·out·of |
| 1436 | memory.</p><p>This·function·returns·<code·class="inline">{continue·|·finished,·Output}</code>,·where·Output·is·the·data | 1436 | memory.</p><p>This·function·returns·<code·class="inline">{continue·|·finished,·Output}</code>,·where·Output·is·the·data |
| 1437 | that·was·decompressed·in·this·call.·New·input·can·be·queued·up·on·each·call·if | 1437 | that·was·decompressed·in·this·call.·New·input·can·be·queued·up·on·each·call·if |
| 1438 | desired,·and·the·function·will·return·<code·class="inline">{finished,·Output}</code>·once·all·queued·data | 1438 | desired,·and·the·function·will·return·<code·class="inline">{finished,·Output}</code>·once·all·queued·data |
| 1439 | has·been·decompressed.</p><p>This·function·can·introduce·some·output·latency·(reading·input·without·producing | 1439 | has·been·decompressed.</p><p>This·function·can·introduce·some·output·latency·(reading·input·without·producing |
| 1440 | any·output).</p><p>If·a·preset·dictionary·is·required·for·further·decompression,·this·function | 1440 | any·output).</p><p>If·a·preset·dictionary·is·required·for·further·decompression,·this·function |
| 1441 | returns·a·<code·class="inline">need_dictionary</code>·tuple.·See·<a·href="#inflateSetDictionary/2"><code·class="inline">inflateSetDictionary/2</code></a>)·for·details.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">walk</span><span·class="p"·data-group-id=" | 1441 | returns·a·<code·class="inline">need_dictionary</code>·tuple.·See·<a·href="#inflateSetDictionary/2"><code·class="inline">inflateSetDictionary/2</code></a>)·for·details.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">walk</span><span·class="p"·data-group-id="1324998340-1">(</span><span·class="n">Compressed</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Handler</span><span·class="p"·data-group-id="1324998340-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 1442 | ····</span><span·class="n">Z</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">zlib</span><span·class="p">:</span><span·class="nf">open</span><span·class="p"·data-group-id=" | 1442 | ····</span><span·class="n">Z</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">zlib</span><span·class="p">:</span><span·class="nf">open</span><span·class="p"·data-group-id="1324998340-2">(</span><span·class="p"·data-group-id="1324998340-2">)</span><span·class="p">,</span><span·class="w"> |
| 1443 | ····</span><span·class="nc">zlib</span><span·class="p">:</span><span·class="nf">inflateInit</span><span·class="p"·data-group-id=" | 1443 | ····</span><span·class="nc">zlib</span><span·class="p">:</span><span·class="nf">inflateInit</span><span·class="p"·data-group-id="1324998340-3">(</span><span·class="n">Z</span><span·class="p"·data-group-id="1324998340-3">)</span><span·class="p">,</span><span·class="w"> |
| 1444 | ····</span><span·class="nf">loop</span><span·class="p"·data-group-id=" | 1444 | ····</span><span·class="nf">loop</span><span·class="p"·data-group-id="1324998340-4">(</span><span·class="n">Z</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Handler</span><span·class="p">,</span><span·class="w">·</span><span·class="nc">zlib</span><span·class="p">:</span><span·class="nf">safeInflate</sp[·...·truncated·by·diffoscope;·len:·255,·SHA:·f7255f12698a3f933653f6409ccedc4ffc51a765f653de1fc767a3c9e66b7492·...·]-4">)</span><span·class="p">,</span><span·class="w"> |
| 1445 | ····</span><span·class="nc">zlib</span><span·class="p">:</span><span·class="nf">inflateEnd</span><span·class="p"·data-group-id=" | 1445 | ····</span><span·class="nc">zlib</span><span·class="p">:</span><span·class="nf">inflateEnd</span><span·class="p"·data-group-id="1324998340-6">(</span><span·class="n">Z</span><span·class="p"·data-group-id="1324998340-6">)</span><span·class="p">,</span><span·class="w"> |
| 1446 | ····</span><span·class="nc">zlib</span><span·class="p">:</span><span·class="nf">close</span><span·class="p"·data-group-id=" | 1446 | ····</span><span·class="nc">zlib</span><span·class="p">:</span><span·class="nf">close</span><span·class="p"·data-group-id="1324998340-7">(</span><span·class="n">Z</span><span·class="p"·data-group-id="1324998340-7">)</span><span·class="p">.</span><span·class="w"> |
| 1447 | </span><span·class="nf">loop</span><span·class="p"·data-group-id=" | 1447 | </span><span·class="nf">loop</span><span·class="p"·data-group-id="1324998340-8">(</span><span·class="n">Z</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Handler</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1324998340-9">{</span><span·class="ss">continue</span[·...·truncated·by·diffoscope;·len:·172,·SHA:·c99ae09653e98d33e25195358958b6440ee96fcfc0bbc70b6bafae49e5707be7·...·]-8">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 1448 | ····</span><span·class="n">Handler</span><span·class="p"·data-group-id=" | 1448 | ····</span><span·class="n">Handler</span><span·class="p"·data-group-id="1324998340-10">(</span><span·class="n">Output</span><span·class="p"·data-group-id="1324998340-10">)</span><span·class="p">,</span><span·class="w"> |
| 1449 | ····</span><span·class="nf">loop</span><span·class="p"·data-group-id=" | 1449 | ····</span><span·class="nf">loop</span><span·class="p"·data-group-id="1324998340-11">(</span><span·class="n">Z</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Handler</span><span·class="p">,</span><span·class="w">·</span><span·class="nc">zlib</span><span·class="p">:</span><span·class="nf">safeInflate</s[·...·truncated·by·diffoscope;·len:·333,·SHA:·97bda7b800178d342e9e43836603489bfaf51b15766fc5f2c521505856176bf1·...·]-11">)</span><span·class="p">;</span><span·class="w"> |
| 1450 | </span><span·class="nf">loop</span><span·class="p"·data-group-id=" | 1450 | </span><span·class="nf">loop</span><span·class="p"·data-group-id="1324998340-14">(</span><span·class="n">Z</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Handler</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1324998340-15">{</span><span·class="ss">finished</sp[·...·truncated·by·diffoscope;·len:·175,·SHA:·c0b11db711430fa3c480e4f1b28994b3b75aa37cc7368ceb558c3ad8458bbc55·...·]-14">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 1451 | ····</span><span·class="n">Handler</span><span·class="p"·data-group-id=" | 1451 | ····</span><span·class="n">Handler</span><span·class="p"·data-group-id="1324998340-16">(</span><span·class="n">Output</span><span·class="p"·data-group-id="1324998340-16">)</span><span·class="p">.</span></code></pre> |
| 1452 | ··</section> | 1452 | ··</section> |
| 1453 | </section> | 1453 | </section> |
| 1454 | <section·class="detail"·id="set_controlling_process/2"> | 1454 | <section·class="detail"·id="set_controlling_process/2"> |
| 1455 | ··<div·class="detail-header"> | 1455 | ··<div·class="detail-header"> |
| 1456 | ····<a·href="#set_controlling_process/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 1456 | ····<a·href="#set_controlling_process/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 1457 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 1457 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
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| 1576 | ······<p·class="built-using"> | 1576 | ······<p·class="built-using"> |
| 1577 | ········Built·using | 1577 | ········Built·using |
| 1578 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1578 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1579 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1579 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1580 | ······</p> | 1580 | ······</p> |
| 1581 | <p>Copyright·©·1996-202 | 1581 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1582 | ····</footer> | 1582 | ····</footer> |
| 1583 | ··</div> | 1583 | ··</div> |
| 1584 | </main> | 1584 | </main> |
| 1585 | </div> | 1585 | </div> |
| 1586 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1586 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1587 | ··<script> | 1587 | ··<script> |
| 1588 | ··let·initialized·=·false; | 1588 | ··let·initialized·=·false; |
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| 143 | ······<p·class="built-using"> | 143 | ······<p·class="built-using"> |
| 144 | ········Built·using | 144 | ········Built·using |
| 145 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 145 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 146 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 146 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 147 | ······</p> | 147 | ······</p> |
| 148 | <p>Copyright·©·1996-202 | 148 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 149 | ····</footer> | 149 | ····</footer> |
| 150 | ··</div> | 150 | ··</div> |
| 151 | </main> | 151 | </main> |
| 152 | </div> | 152 | </div> |
| 153 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 153 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 154 | ··<script> | 154 | ··<script> |
| 155 | ··let·initialized·=·false; | 155 | ··let·initialized·=·false; |
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| 181 | ······<p·class="built-using"> | 181 | ······<p·class="built-using"> |
| 182 | ········Built·using | 182 | ········Built·using |
| 183 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 183 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 184 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 184 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 185 | ······</p> | 185 | ······</p> |
| 186 | <p>Copyright·©·1996-202 | 186 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 187 | ····</footer> | 187 | ····</footer> |
| 188 | ··</div> | 188 | ··</div> |
| 189 | </main> | 189 | </main> |
| 190 | </div> | 190 | </div> |
| 191 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 191 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 192 | ··<script> | 192 | ··<script> |
| 193 | ··let·initialized·=·false; | 193 | ··let·initialized·=·false; |
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| 199 | ······<p·class="built-using"> | 199 | ······<p·class="built-using"> |
| 200 | ········Built·using | 200 | ········Built·using |
| 201 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 201 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 202 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 202 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 203 | ······</p> | 203 | ······</p> |
| 204 | <p>Copyright·©·1996-202 | 204 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 205 | ····</footer> | 205 | ····</footer> |
| 206 | ··</div> | 206 | ··</div> |
| 207 | </main> | 207 | </main> |
| 208 | </div> | 208 | </div> |
| 209 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 209 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 210 | ··<script> | 210 | ··<script> |
| 211 | ··let·initialized·=·false; | 211 | ··let·initialized·=·false; |
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| 186 | ······<p·class="built-using"> | 186 | ······<p·class="built-using"> |
| 187 | ········Built·using | 187 | ········Built·using |
| 188 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 188 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 189 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 189 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 190 | ······</p> | 190 | ······</p> |
| 191 | <p>Copyright·©·1996-202 | 191 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 192 | ····</footer> | 192 | ····</footer> |
| 193 | ··</div> | 193 | ··</div> |
| 194 | </main> | 194 | </main> |
| 195 | </div> | 195 | </div> |
| 196 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 196 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 197 | ··<script> | 197 | ··<script> |
| 198 | ··let·initialized·=·false; | 198 | ··let·initialized·=·false; |
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| 161 | </h3> | 161 | </h3> |
| 162 | <p>The·runtime·user·interface·for·exclusive·decode·comprises·the·following·two | 162 | <p>The·runtime·user·interface·for·exclusive·decode·comprises·the·following·two |
| 163 | functions:</p><ul><li>A·function·for·an·exclusive·decode,·whose·name·the·user·decides·in·the | 163 | functions:</p><ul><li>A·function·for·an·exclusive·decode,·whose·name·the·user·decides·in·the |
| 164 | configuration·file</li><li>A·<code·class="inline">decode_part/2</code>·function·generated·by·the·ASN.1·compiler·when | 164 | configuration·file</li><li>A·<code·class="inline">decode_part/2</code>·function·generated·by·the·ASN.1·compiler·when |
| 165 | exclusive·decode·is·enabled.·This·function·decodes·the·parts·that | 165 | exclusive·decode·is·enabled.·This·function·decodes·the·parts·that |
| 166 | were·left·undecoded·during·the·exclusive·decode.</li></ul><p>Both·functions·are·described·in·the·following.</p><p>If·the·exclusive·decode·function·has,·for·example,·the·name·<code·class="inline">decode_exclusive</code> | 166 | were·left·undecoded·during·the·exclusive·decode.</li></ul><p>Both·functions·are·described·in·the·following.</p><p>If·the·exclusive·decode·function·has,·for·example,·the·name·<code·class="inline">decode_exclusive</code> |
| 167 | and·an·ASN.1·encoded·message·<code·class="inline">Bin</code>·is·to·be·exclusive·decoded,·the·call·is·as | 167 | and·an·ASN.1·encoded·message·<code·class="inline">Bin</code>·is·to·be·exclusive·decoded,·the·call·is·as |
| 168 | follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 168 | follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="6268126774-1">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="n">ExclMessage</span><span·class="p"·data-group-id="6268126774-1">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">'MyM[·...·truncated·by·diffoscope;·len:·201,·SHA:·f1a6faf13265cc4fb388b37b28d5d67482136d9c221fe93762d6e3b8f80876ff·...·]-2">)</span></code></pre><p><a·href=""·id="UndecodedPart"></a>·The·result·<code·class="inline">ExclMessage</code>·has·the·same·structure·as·a |
| 169 | complete·decode·would·have,·except·for·the·parts·of·the·top·type·that·were·not | 169 | complete·decode·would·have,·except·for·the·parts·of·the·top·type·that·were·not |
| 170 | decoded.·The·undecoded·parts·are·on·their·places·in·the·structure·on·format | 170 | decoded.·The·undecoded·parts·are·on·their·places·in·the·structure·on·format |
| 171 | <code·class="inline">{TypeKey,UndecodedValue}</code>.</p><p>Each·undecoded·part·that·is·to·be·decoded·must·be·fed·into·function | 171 | <code·class="inline">{TypeKey,UndecodedValue}</code>.</p><p>Each·undecoded·part·that·is·to·be·decoded·must·be·fed·into·function |
| 172 | <code·class="inline">decode_part/2</code>·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="4 | 172 | <code·class="inline">decode_part/2</code>·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="4058103840-1">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="n">PartMessage</span><span·class="p"·data-group-id="4058103840-1">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">'MyMo[·...·truncated·by·diffoscope;·len:·284,·SHA:·4855a05ec02963e9c96a214febd65069da9a55c78dbd7c37da61d720706d0767·...·]-2">)</span></code></pre><p><a·href=""·id="Exclusive-Instruction"></a></p><h3·id="writing-an-exclusive-decode-instruction"·class="section-heading"> |
| 173 | ··<a·href="#writing-an-exclusive-decode-instruction"·class="hover-link"> | 173 | ··<a·href="#writing-an-exclusive-decode-instruction"·class="hover-link"> |
| 174 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 174 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 175 | ··</a> | 175 | ··</a> |
| 176 | ··<span·class="text">Writing·an·Exclusive·Decode·Instruction</span> | 176 | ··<span·class="text">Writing·an·Exclusive·Decode·Instruction</span> |
| 177 | </h3> | 177 | </h3> |
| 178 | <p>This·instruction·is·written·in·the·configuration·file·in·the·following·format:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">ExclusiveDecodeInstruction</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 178 | <p>This·instruction·is·written·in·the·configuration·file·in·the·following·format:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">ExclusiveDecodeInstruction</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="1613618171-1">{</span><span·class="ss">exclusive_decode</span><span·class="p">,</span><span·class="p"·data-group-id="1613618171-2">{</span><span·class="n">ModuleName</span><span·class="p">,</span><span·class="n">DecodeInstructions</span><span·class="p"·dat[·...·truncated·by·diffoscope;·len:·75,·SHA:·1a6dab2ed4bb5a457291fc6a59085be47b20d257539e2e40e0d9f98404163e79·...·]-1">}</span><span·class="p">.</span><span·class="w"> |
| 179 | </span><span·class="n">ModuleName</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">atom</span><span·class="p"·data-group-id=" | 179 | </span><span·class="n">ModuleName</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">atom</span><span·class="p"·data-group-id="1613618171-3">(</span><span·class="p"·data-group-id="1613618171-3">)</span><span·class="w"> |
| 180 | </span><span·class="n">DecodeInstructions</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 180 | </span><span·class="n">DecodeInstructions</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="1613618171-4">[</span><span·class="n">DecodeInstruction</span><span·class="p"·data-group-id="1613618171-4">]</span><span·class="o">+</span><span·class="w"> |
| 181 | </span><span·class="n">DecodeInstruction</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 181 | </span><span·class="n">DecodeInstruction</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="1613618171-5">{</span><span·class="n">ExclusiveDecodeFunctionName</span><span·class="p">,</span><span·class="n">TypeList</span><span·class="p"·data-group-id="1613618171-5">}</span><span·class="w"> |
| 182 | </span><span·class="n">ExclusiveDecodeFunctionName</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">atom</span><span·class="p"·data-group-id=" | 182 | </span><span·class="n">ExclusiveDecodeFunctionName</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">atom</span><span·class="p"·data-group-id="1613618171-6">(</span><span·class="p"·data-group-id="1613618171-6">)</span><span·class="w"> |
| 183 | </span><span·class="n">TypeList</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 183 | </span><span·class="n">TypeList</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="1613618171-7">[</span><span·class="n">TopType</span><span·class="p">,</span><span·class="n">ElementList</span><span·class="p"·data-group-id="1613618171-7">]</span><span·class="w"> |
| 184 | </span><span·class="n">ElementList</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 184 | </span><span·class="n">ElementList</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="1613618171-8">[</span><span·class="n">Element</span><span·class="p"·data-group-id="1613618171-8">]</span><span·class="o">+</span><span·class="w"> |
| 185 | </span><span·class="n">Element</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 185 | </span><span·class="n">Element</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="1613618171-9">{</span><span·class="n">Name</span><span·class="p">,</span><span·class="ss">parts</span><span·class="p"·data-group-id="1613618171-9">}</span><span·class="w">·</span><span·class="p">|</span><span·class="w"> |
| 186 | ··········</span><span·class="p"·data-group-id=" | 186 | ··········</span><span·class="p"·data-group-id="1613618171-10">{</span><span·class="n">Name</span><span·class="p">,</span><span·class="ss">undecoded</span><span·class="p"·data-group-id="1613618171-10">}</span><span·class="w">·</span><span·class="p">|</span><span·class="w"> |
| 187 | ··········</span><span·class="p"·data-group-id=" | 187 | ··········</span><span·class="p"·data-group-id="1613618171-11">{</span><span·class="n">Name</span><span·class="p">,</span><span·class="n">ElementList</span><span·class="p"·data-group-id="1613618171-11">}</span><span·class="w"> |
| 188 | </span><span·class="n">TopType</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">atom</span><span·class="p"·data-group-id=" | 188 | </span><span·class="n">TopType</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">atom</span><span·class="p"·data-group-id="1613618171-12">(</span><span·class="p"·data-group-id="1613618171-12">)</span><span·class="w"> |
| 189 | </span><span·class="n">Name</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">atom</span><span·class="p"·data-group-id=" | 189 | </span><span·class="n">Name</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">atom</span><span·class="p"·data-group-id="1613618171-13">(</span><span·class="p"·data-group-id="1613618171-13">)</span></code></pre><p>The·instruction·must·be·a·valid·Erlang·term·terminated·by·a·dot.</p><p>In·<code·class="inline">TypeList</code>·the·path·from·the·top·type·to·each·undecoded·subcomponent·is |
| 190 | described.·<code·class="inline">TopType</code>·is·the·name·of·a·top-level·type·in·the·ASN.1·specification. | 190 | described.·<code·class="inline">TopType</code>·is·the·name·of·a·top-level·type·in·the·ASN.1·specification. |
| 191 | The·action·for·each·component·in·<code·class="inline">ElementList</code>·is·described·by·one·of:</p><ul><li><code·class="inline">{Name,parts}</code></li><li><code·class="inline">{Name,undecoded}</code></li><li><code·class="inline">{Name,ElementList}</code></li></ul><p>The·use·and·effect·of·the·actions·are·as·follows:</p><ul><li><p><strong><code·class="inline">{Name,undecoded}</code></strong>·-·Leaves·the·element·undecoded.·The·type·of·<code·class="inline">Name</code>·can | 191 | The·action·for·each·component·in·<code·class="inline">ElementList</code>·is·described·by·one·of:</p><ul><li><code·class="inline">{Name,parts}</code></li><li><code·class="inline">{Name,undecoded}</code></li><li><code·class="inline">{Name,ElementList}</code></li></ul><p>The·use·and·effect·of·the·actions·are·as·follows:</p><ul><li><p><strong><code·class="inline">{Name,undecoded}</code></strong>·-·Leaves·the·element·undecoded.·The·type·of·<code·class="inline">Name</code>·can |
| 192 | be·any·ASN.1·type.·The·value·of·element·<code·class="inline">Name</code>·is·returned·as·a·tuple·(as | 192 | be·any·ASN.1·type.·The·value·of·element·<code·class="inline">Name</code>·is·returned·as·a·tuple·(as |
| 193 | mentioned·in·the·previous·section)·in·the·value·structure·of·the·top·type.</p></li><li><p><strong><code·class="inline">{Name,parts}</code></strong>·-·The·type·of·<code·class="inline">Name</code>·must·be·either·<code·class="inline">SEQUENCE·OF</code>·or | 193 | mentioned·in·the·previous·section)·in·the·value·structure·of·the·top·type.</p></li><li><p><strong><code·class="inline">{Name,parts}</code></strong>·-·The·type·of·<code·class="inline">Name</code>·must·be·either·<code·class="inline">SEQUENCE·OF</code>·or |
| 194 | <code·class="inline">SET·OF</code>.·The·action·implies·that·the·different·components·of·<code·class="inline">Name</code>·are·left | 194 | <code·class="inline">SET·OF</code>.·The·action·implies·that·the·different·components·of·<code·class="inline">Name</code>·are·left |
| 195 | undecoded.·The·value·of·<code·class="inline">Name</code>·is·returned·as·a·tuple·(as·mentioned·in·the | 195 | undecoded.·The·value·of·<code·class="inline">Name</code>·is·returned·as·a·tuple·(as·mentioned·in·the |
| 196 | previous·section)·where·the·second·element·is·a·list·of·binaries.·This·is | 196 | previous·section)·where·the·second·element·is·a·list·of·binaries.·This·is |
| Offset 257, 86 lines modified | Offset 257, 86 lines modified | ||
| 257 | ·{'GUI', | 257 | ·{'GUI', |
| 258 | ··[{decode_Window_exclusive, | 258 | ··[{decode_Window_exclusive, |
| 259 | ····['Window',[{status,[{buttonList,parts},{actions,undecoded}]}]]}, | 259 | ····['Window',[{status,[{buttonList,parts},{actions,undecoded}]}]]}, |
| 260 | ···{decode_Button_exclusive, | 260 | ···{decode_Button_exclusive, |
| 261 | ····['Button',[{number,undecoded}]]}]}}.</code></pre><p>The·following·figure·shows·the·bytes·of·a·<code·class="inline">Window:status</code>·message.·The | 261 | ····['Button',[{number,undecoded}]]}]}}.</code></pre><p>The·following·figure·shows·the·bytes·of·a·<code·class="inline">Window:status</code>·message.·The |
| 262 | components·<code·class="inline">buttonList</code>·and·<code·class="inline">actions</code>·are·excluded·from·decode.·Only·<code·class="inline">state</code>·and | 262 | components·<code·class="inline">buttonList</code>·and·<code·class="inline">actions</code>·are·excluded·from·decode.·Only·<code·class="inline">state</code>·and |
| 263 | <code·class="inline">enabled</code>·are·decoded·when·<code·class="inline">decode__Window_exclusive</code>·is·called.</p><p><img·src="assets/exclusive_Win_But.gif"·alt="Bytes·of·a·Window:status·Message"·title="Bytes·of·a·Window:status·Message"/></p><p>Here·follows·an·example·of·how·the·module.·Note·that·option·<code·class="inline">no_ok_wrapper</code>·is | 263 | <code·class="inline">enabled</code>·are·decoded·when·<code·class="inline">decode__Window_exclusive</code>·is·called.</p><p><img·src="assets/exclusive_Win_But.gif"·alt="Bytes·of·a·Window:status·Message"·title="Bytes·of·a·Window:status·Message"/></p><p>Here·follows·an·example·of·how·the·module.·Note·that·option·<code·class="inline">no_ok_wrapper</code>·is |
| 264 | used·to·make·the·example·more·concise.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">asn1ct</span><span·class="p">:</span><span·class="nf">compile</span><span·class="p"·data-group-id="8 | 264 | used·to·make·the·example·more·concise.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">asn1ct</span><span·class="p">:</span><span·class="nf">compile</span><span·class="p"·data-group-id="8934743988-1">(</span><span·class="ss">'GUI'</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8934743988-2">[</span><span·class="ss">ber</span><span·class="p">,</span><span·class="ss">asn1config</span><span·class=[·...·truncated·by·diffoscope;·len:·143,·SHA:·73c1113aa55354e200ebd6cafbe2b38cdbc952addb1508b61cb2f829347b6cba·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 265 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> | 265 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> |
| 266 | 2>·</span><span·class="nf">rr</span><span·class="p"·data-group-id="8 | 266 | 2>·</span><span·class="nf">rr</span><span·class="p"·data-group-id="8934743988-3">(</span><span·class="ss">'GUI'</span><span·class="p"·data-group-id="8934743988-3">)</span><span·class="p">.</span><span·class="w"> |
| 267 | </span><span·class="p"·data-group-id="8 | 267 | </span><span·class="p"·data-group-id="8934743988-4">[</span><span·class="ss">'Action'</span><span·class="p">,</span><span·class="ss">'Button'</span><span·class="p">,</span><span·class="ss">'Status'</span><span·class="p"·data-group-id="8934743988-4">]</span><span·class="gp·unselectable"> |
| 268 | 3>·</span><span·class="n">ButtonMsg</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">'Button'</span><span·class="p"·data-group-id="8 | 268 | 3>·</span><span·class="n">ButtonMsg</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">'Button'</span><span·class="p"·data-group-id="8934743988-5">{</span><span·class="ss">number</span><span·class="o">=</span><span·class="mi">123</span><span·class="p">,</span><span·class="ss">on</span><span·class="o">=</span><span·class="ss">true</span><span·class="p"·data-group-id="8934743988-5">}</span><span·class="p">.</span><span·class="w"> |
| 269 | </span><span·class="o">#</span><span·class="ss">'Button'</span><span·class="p"·data-group-id="8 | 269 | </span><span·class="o">#</span><span·class="ss">'Button'</span><span·class="p"·data-group-id="8934743988-6">{</span><span·class="ss">number</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">123</span><span·class="p">,</span><span·class="ss">on</span><span·class="w">·</span><span·class="o">=</span><span·cl[·...·truncated·by·diffoscope;·len:·85,·SHA:·700c90ac9c93420bb9422ea46ebdd1ec6f518fb30540f9857cde9133395f4c6a·...·]-6">}</span><span·class="gp·unselectable"> |
| 270 | 4>·</span><span·class="n">ButtonBytes</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">'GUI'</span><span·class="p">:</span><span·class="nf">encode</span><span·class="p"·data-group-id="8 | 270 | 4>·</span><span·class="n">ButtonBytes</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">'GUI'</span><span·class="p">:</span><span·class="nf">encode</span><span·class="p"·data-group-id="8934743988-7">(</span><span·class="ss">'Button'</span><span·class="p">,</span><span·class="w">·</span><span·class="n">ButtonMsg</span><span·class="p"·data-group-id="8934743988-7">)</span><span·class="p">.</span><span·class="w"> |
| 271 | </span><span·class="p"·data-group-id="8 | 271 | </span><span·class="p"·data-group-id="8934743988-8"><<</span><span·class="mi">48</span><span·class="p">,</span><span·class="mi">6</span><span·class="p">,</span><span·class="mi">128</span><span·class="p">,</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">123</span><s[·...·truncated·by·diffoscope;·len:·190,·SHA:·b594fb921839c4e8bb381171a3bc467d4f6c186839df0712f3d47346ff6d8aaa·...·]-8">>></span><span·class="gp·unselectable"> |
| 272 | 5>·</span><span·class="n">ExclusiveMsgButton</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">'GUI'</span><span·class="p">:</span><span·class="nf">decode_Button_exclusive</span><span·class="p"·data-group-id="8 | 272 | 5>·</span><span·class="n">ExclusiveMsgButton</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">'GUI'</span><span·class="p">:</span><span·class="nf">decode_Button_exclusive</span><span·class="p"·data-group-id="8934743988-9">(</span><span·class="n">ButtonBytes</span><span·class="p"·data-group-id="8934743988-9">)</span><span·class="p">.</span><span·class="w"> |
| 273 | </span><span·class="o">#</span><span·class="ss">'Button'</span><span·class="p"·data-group-id="8 | 273 | </span><span·class="o">#</span><span·class="ss">'Button'</span><span·class="p"·data-group-id="8934743988-10">{</span><span·class="ss">number</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="8934743988-11">{</span><span·class="ss">'Button_number'</span><span·class="p">,</span><span·c[·...·truncated·by·diffoscope;·len:·283,·SHA:·9dc79021965e85ef36ff457f29c15366e01d21af92a825de2875f07ebe11ada4·...·]-11">}</span><span·class="p">,</span><span·class="w"> |
| 274 | ··········</span><span·class="ss">on</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">true</span><span·class="p"·data-group-id="8 | 274 | ··········</span><span·class="ss">on</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">true</span><span·class="p"·data-group-id="8934743988-10">}</span><span·class="gp·unselectable"> |
| 275 | 6>·</span><span·class="p"·data-group-id="8 | 275 | 6>·</span><span·class="p"·data-group-id="8934743988-13">{</span><span·class="n">UndecKey</span><span·class="p">,</span><span·class="n">UndecBytes</span><span·class="p"·data-group-id="8934743988-13">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">ExclusiveMsgButton</span><span·class="o">#</span><span·class="ss">'Button'</span><span·class="p">.</span><span·class="ss">number</span><span·class="p">.</span><span·class="w"> |
| 276 | </span><span·class="p"·data-group-id="8 | 276 | </span><span·class="p"·data-group-id="8934743988-14">{</span><span·class="ss">'Button_number'</span><span·class="p">,</span><span·class="p"·data-group-id="8934743988-15"><<</span><span·class="mi">128</span><span·class="p">,</span><span·class="mi">1</span><span·class="p">,</span><s[·...·truncated·by·diffoscope;·len:·127,·SHA:·d3462f48219dc0f0bed7e7ec9fa23b607283d1e7fd80730ff58258b7b61d3807·...·]-14">}</span><span·class="gp·unselectable"> |
| 277 | 7>·</span><span·class="nc">'GUI'</span><span·class="p">:</span><span·class="nf">decode_part</span><span·class="p"·data-group-id="8 | 277 | 7>·</span><span·class="nc">'GUI'</span><span·class="p">:</span><span·class="nf">decode_part</span><span·class="p"·data-group-id="8934743988-16">(</span><span·class="n">UndecKey</span><span·class="p">,</span><span·class="w">·</span><span·class="n">UndecBytes</span><span·class="p"·data-group-id="8934743988-16">)</span><span·class="p">.</span><span·class="w"> |
| 278 | </span><span·class="mi">123</span><span·class="gp·unselectable"> | 278 | </span><span·class="mi">123</span><span·class="gp·unselectable"> |
| 279 | 8>·</span><span·class="n">WindowMsg</span><span·class="w">·</span><span·class="o">=</span><span·class="w"> | 279 | 8>·</span><span·class="n">WindowMsg</span><span·class="w">·</span><span·class="o">=</span><span·class="w"> |
| 280 | </span><span·class="p"·data-group-id="8 | 280 | </span><span·class="p"·data-group-id="8934743988-17">{</span><span·class="ss">status</span><span·class="p">,</span><span·class="p"·data-group-id="8934743988-18">{</span><span·class="ss">'Status'</span><span·class="p">,</span><span·class="mi">35</span><span·class="p">,</span><span·class="w"> |
| 281 | ···</span><span·class="p"·data-group-id="8 | 281 | ···</span><span·class="p"·data-group-id="8934743988-19">[</span><span·class="p"·data-group-id="8934743988-20">{</span><span·class="ss">'Button'</span><span·class="p">,</span><span·class="mi">3</span><span·class="p">,</span><span·class="ss">true</span><span·class="p"·data-group-id="89347439[·...·truncated·by·diffoscope;·len:·2,·SHA:·8b940be7fb78aaa6b6567dd7a3987996947460df1c668e698eb92ca77e425349·...·]-20">}</span><span·class="p">,</span><span·class="w"> |
| 282 | ····</span><span·class="p"·data-group-id="8 | 282 | ····</span><span·class="p"·data-group-id="8934743988-21">{</span><span·class="ss">'Button'</span><span·class="p">,</span><span·class="mi">4</span><span·class="p">,</span><span·class="ss">false</span><span·class="p"·data-group-id="8934743988-21">}</span><span·class="p">,</span><span·class="w"> |
| 283 | ····</span><span·class="p"·data-group-id="8 | 283 | ····</span><span·class="p"·data-group-id="8934743988-22">{</span><span·class="ss">'Button'</span><span·class="p">,</span><span·class="mi">5</span><span·class="p">,</span><span·class="ss">true</span><span·class="p"·data-group-id="8934743988-22">}</span><span·class="p">,</span><span·class="w"> |
| 284 | ····</span><span·class="p"·data-group-id="8 | 284 | ····</span><span·class="p"·data-group-id="8934743988-23">{</span><span·class="ss">'Button'</span><span·class="p">,</span><span·class="mi">6</span><span·class="p">,</span><span·class="ss">true</span><span·class="p"·data-group-id="8934743988-23">}</span><span·class="p">,</span><span·class="w"> |
| 285 | ····</span><span·class="p"·data-group-id="8 | 285 | ····</span><span·class="p"·data-group-id="8934743988-24">{</span><span·class="ss">'Button'</span><span·class="p">,</span><span·class="mi">7</span><span·class="p">,</span><span·class="ss">false</span><span·class="p"·data-group-id="8934743988-24">}</span><span·class="p"·data-group-id="8934743[·...·truncated·by·diffoscope;·len:·3,·SHA:·ba9c5622470525f1bbed5f36077631df5089db3ad0d79e9782078a681c0dac09·...·]-19">]</span><span·class="p">,</span><span·class="w"> |
| 286 | ···</span><span·class="ss">false</span><span·class="p">,</span><span·class="w"> | 286 | ···</span><span·class="ss">false</span><span·class="p">,</span><span·class="w"> |
| 287 | ···</span><span·class="p"·data-group-id="8 | 287 | ···</span><span·class="p"·data-group-id="8934743988-25">{</span><span·class="ss">possibleActions</span><span·class="p">,</span><span·class="p"·data-group-id="8934743988-26">[</span><span·class="p"·data-group-id="8934743988-27">{</span><span·class="ss">'Action'</span><span·class="p">,</span[·...·truncated·by·diffoscope;·len:·558,·SHA:·4d483f5a39759a8cd45184f47ae3c8bac8e232003c3e1ced95169296cfe63e67·...·]-17">}</span><span·class="p">.</span><span·class="w"> |
| 288 | </span><span·class="p"·data-group-id="8 | 288 | </span><span·class="p"·data-group-id="8934743988-29">{</span><span·class="ss">status</span><span·class="p">,</span><span·class="o">#</span><span·class="ss">'Status'</span><span·class="p"·data-group-id="8934743988-30">{</span><span·class="ss">state</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">35</span><span·class="p">,</span><span·class="w"> |
| 289 | ········</span><span·class="ss">buttonList</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="8 | 289 | ········</span><span·class="ss">buttonList</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="8934743988-31">[</span><span·class="o">#</span><span·class="ss">'Button'</span><span·class="p"·data-group-id="8934743988-32">{</span><span·class="ss">number</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="m[·...·truncated·by·diffoscope;·len:·202,·SHA:·252da11f6b260b4a62e79e2011cbf123cb7cc72730dcdfae320adebac98049a8·...·]-32">}</span><span·class="p">,</span><span·class="w"> |
| 290 | ······················</span><span·class="o">#</span><span·class="ss">'Button'</span><span·class="p"·data-group-id="8 | 290 | ······················</span><span·class="o">#</span><span·class="ss">'Button'</span><span·class="p"·data-group-id="8934743988-33">{</span><span·class="ss">number</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">4</span><span·class="p">,</span><span·class="ss">on</span><span·class="w">·</span><span·class="o">=</span><span·cla[·...·truncated·by·diffoscope;·len:·85,·SHA:·9e52b32fc894778a1b635beec5fd813308a0c3c54bedf7f1871766be89533f6a·...·]-33">}</span><span·class="p">,</span><span·class="w"> |
| 291 | ······················</span><span·class="o">#</span><span·class="ss">'Button'</span><span·class="p"·data-group-id="8 | 291 | ······················</span><span·class="o">#</span><span·class="ss">'Button'</span><span·class="p"·data-group-id="8934743988-34">{</span><span·class="ss">number</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">5</span><span·class="p">,</span><span·class="ss">on</span><span·class="w">·</span><span·class="o">=</span><span·cla[·...·truncated·by·diffoscope;·len:·84,·SHA:·5a5045759c5f138a53c069f40d2b94c685bde39c7096479ec0a803581035140d·...·]-34">}</span><span·class="p">,</span><span·class="w"> |
| 292 | ······················</span><span·class="o">#</span><span·class="ss">'Button'</span><span·class="p"·data-group-id="8 | 292 | ······················</span><span·class="o">#</span><span·class="ss">'Button'</span><span·class="p"·data-group-id="8934743988-35">{</span><span·class="ss">number</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">6</span><span·class="p">,</span><span·class="ss">on</span><span·class="w">·</span><span·class="o">=</span><span·cla[·...·truncated·by·diffoscope;·len:·84,·SHA:·5a5045759c5f138a53c069f40d2b94c685bde39c7096479ec0a803581035140d·...·]-35">}</span><span·class="p">,</span><span·class="w"> |
| 293 | ······················</span><span·class="o">#</span><span·class="ss">'Button'</span><span·class="p"·data-group-id="8 | 293 | ······················</span><span·class="o">#</span><span·class="ss">'Button'</span><span·class="p"·data-group-id="8934743988-36">{</span><span·class="ss">number</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">7</span><span·class="p">,</span><span·class="ss">on</span><span·class="w">·</span><span·class="o">=</span><span·cla[·...·truncated·by·diffoscope;·len:·139,·SHA:·eb703143b6cf8ffe5b7755f59c4c5464750bf8724f4815eb732859cf85851ceb·...·]-31">]</span><span·class="p">,</span><span·class="w"> |
| 294 | ········</span><span·class="ss">enabled</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">false</span><span·class="p">,</span><span·class="w"> | 294 | ········</span><span·class="ss">enabled</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">false</span><span·class="p">,</span><span·class="w"> |
| 295 | ········</span><span·class="ss">actions</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="8 | 295 | ········</span><span·class="ss">actions</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="8934743988-37">{</span><span·class="ss">possibleActions</span><span·class="p">,</span><span·class="p"·data-group-id="8934743988-38">[</span><span·class="o">#</span><span·class="ss">'Action'</span><span·class="p"·data-group-id="8934743988-39">{</span><span·class="ss">number</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">16</span><span·class="p">,</span><span·class="w"> |
| 296 | ··············································</span><span·class="ss">handle</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">'Button'</span><span·class="p"·data-group-id="8 | 296 | ··············································</span><span·class="ss">handle</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">'Button'</span><span·class="p"·data-group-id="8934743988-40">{</span><span·class="ss">number</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">17</span><span·class="p">,</span><span·class="ss">on</span><span·class="w">·</span><span·class="o">=</span><span·cl[·...·truncated·by·diffoscope;·len:·355,·SHA:·05af84874edc72ab390beacf5684bdd9d7a74441ea3c32e506e07f0844833cb5·...·]-29">}</span><span·class="gp·unselectable"> |
| 297 | 9>·</span><span·class="n">WindowBytes</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">'GUI'</span><span·class="p">:</span><span·class="nf">encode</span><span·class="p"·data-group-id="8 | 297 | 9>·</span><span·class="n">WindowBytes</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">'GUI'</span><span·class="p">:</span><span·class="nf">encode</span><span·class="p"·data-group-id="8934743988-41">(</span><span·class="ss">'Window'</span><span·class="p">,</span><span·class="w">·</span><span·class="n">WindowMsg</span><span·class="p"·data-group-id="8934743988-41">)</span><span·class="p">.</span><span·class="w"> |
| 298 | </span><span·class="p"·data-group-id="8 | 298 | </span><span·class="p"·data-group-id="8934743988-42"><<</span><span·class="mi">161</span><span·class="p">,</span><span·class="mi">65</span><span·class="p">,</span><span·class="mi">128</span><span·class="p">,</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">35</span><span·class="p">,</span><span·class="mi">161</span><span·class="p">,</span><span·class="mi">40</span><span·class="p">,</span><span·class="mi">48</span><span·class="p">,</span><span·class="mi">6</span><span·class="p">,</span><span·class="mi">128</span><span·class="p">,</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">3</span><span·class="p">,</span><span·class="mi">129</span><span·class="p">,</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">255</span><span·class="p">,</span><span·class="mi">48</span><span·class="p">,</span><span·class="mi">6</span><span·class="p">,</span><span·class="mi">128</span><span·class="p">,</span><span·class="w"> |
| 299 | ··</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">4</span><span·class="p">,</span><span·class="mi">129</span><span·class="p">,</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">48</span><span·class="p">,</span><span·class="mi">6</span><span·class="p">,</span><span·class="mi">128</span><span·class="p">,</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">5</span><span·class="p">,</span><span·class="mi">129</span><span·class="p">,</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p"·data-group-id="8 | 299 | ··</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">4</span><span·class="p">,</span><span·class="mi">129</span><span·class="p">,</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">48</span><span·class="p">,</span><span·class="mi">6</span><span·class="p">,</span><span·class="mi">128</span><span·class="p">,</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">5</span><span·class="p">,</span><span·class="mi">129</span><span·class="p">,</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p"·data-group-id="8934743988-42">>></span><span·class="gp·unselectable"> |
| 300 | 10>·</span><span·class="p"·data-group-id="8 | 300 | 10>·</span><span·class="p"·data-group-id="8934743988-43">{</span><span·class="ss">status</span><span·class="p">,</span><span·class="o">#</span><span·class="ss">'Status'</span><span·class="p"·data-group-id="8934743988-44">{</span><span·class="ss">buttonList</span><span·class="o">=</span><spa[·...·truncated·by·diffoscope;·len:·299,·SHA:·d628165b9a4ab5f260885ba742873567248418f079f8286bef70eb77a635043a·...·]-43">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w"> |
| 301 | </span><span·class="nc">'GUI'</span><span·class="p">:</span><span·class="nf">decode_Window_exclusive</span><span·class="p"·data-group-id="8 | 301 | </span><span·class="nc">'GUI'</span><span·class="p">:</span><span·class="nf">decode_Window_exclusive</span><span·class="p"·data-group-id="8934743988-46">(</span><span·class="n">WindowBytes</span><span·class="p"·data-group-id="8934743988-46">)</span><span·class="p">.</span><span·class="w"> |
| 302 | </span><span·class="p"·data-group-id="8 | 302 | </span><span·class="p"·data-group-id="8934743988-47">{</span><span·class="ss">status</span><span·class="p">,</span><span·class="o">#</span><span·class="ss">'Status'</span><span·class="p"·data-group-id="8934743988-48">{</span><span·class="ss">state</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">35</span><span·class="p">,</span><span·class="w"> |
| 303 | ··················</span><span·class="ss">buttonList</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="8 | 303 | ··················</span><span·class="ss">buttonList</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="8934743988-49">{</span><span·class="ss">'Status_buttonList'</span><span·class="p">,</span><span·class="p"·data-group-id="8934743988-50">[</span><span·class="p"·data-group-id="8934743988-51"><<</span><span·class="mi">48</span><span·class="p">,</span><span·class="mi">6</span><span·class="p">,</span><span·class="mi">128</span><span·class="p">,</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">3</span><span·class="p">,</span><span·class="mi">129</span><span·class="p">,</span><span·class="mi">1</span><span·class="p">,</span><span·class="w"> |
| 304 | ·······················································</span><span·class="mi">255</span><span·class="p"·data-group-id="8 | 304 | ·······················································</span><span·class="mi">255</span><span·class="p"·data-group-id="8934743988-51">>></span><span·class="p">,</span><span·class="w"> |
| 305 | ·····················································</span><span·class="p"·data-group-id="8 | 305 | ·····················································</span><span·class="p"·data-group-id="8934743988-52"><<</span><span·class="mi">48</span><span·class="p">,</span><span·class="mi">6</span><span·class="p">,</span><span·class="mi">128</span><span·class="p">,</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">4</span><sp[·...·truncated·by·diffoscope;·len:·187,·SHA:·b36c889fa372ea48138c7902c15a6175a7d037d60dec0d8013567d9da94a3e64·...·]-52">>></span><span·class="p">,</span><span·class="w"> |
| 306 | ·····················································</span><span·class="p"·data-group-id="8 | 306 | ·····················································</span><span·class="p"·data-group-id="8934743988-53"><<</span><span·class="mi">48</span><span·class="p">,</span><span·class="mi">6</span><span·class="p">,</span><span·class="mi">128</span><span·class="p">,</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">5</span><sp[·...·truncated·by·diffoscope;·len:·189,·SHA:·710cf146e03968060c2688051e42fae2eb22b47761a473087f2846cb032ecec6·...·]-53">>></span><span·class="p">,</span><span·class="w"> |
| 307 | ·····················································</span><span·class="p"·data-group-id="8 | 307 | ·····················································</span><span·class="p"·data-group-id="8934743988-54"><<</span><span·class="mi">48</span><span·class="p">,</span><span·class="mi">6</span><span·class="p">,</span><span·class="mi">128</span><span·class="p">,</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">6</span><sp[·...·truncated·by·diffoscope;·len:·189,·SHA:·710cf146e03968060c2688051e42fae2eb22b47761a473087f2846cb032ecec6·...·]-54">>></span><span·class="p">,</span><span·class="w"> |
| 308 | ·····················································</span><span·class="p"·data-group-id="8 | 308 | ·····················································</span><span·class="p"·data-group-id="8934743988-55"><<</span><span·class="mi">48</span><span·class="p">,</span><span·class="mi">6</span><span·class="p">,</span><span·class="mi">128</span><span·class="p">,</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">7</span><sp[·...·truncated·by·diffoscope;·len:·302,·SHA:·6f5f50456ecc96dd0c1bdd39bdd3d0d1da6a2bc4e0a65c9950f55457ec17a79c·...·]-49">}</span><span·class="p">,</span><span·class="w"> |
| 309 | ··················</span><span·class="ss">enabled</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">false</span><span·class="p">,</span><span·class="w"> | 309 | ··················</span><span·class="ss">enabled</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">false</span><span·class="p">,</span><span·class="w"> |
| 310 | ··················</span><span·class="ss">actions</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="8 | 310 | ··················</span><span·class="ss">actions</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="8934743988-56">{</span><span·class="ss">'Status_actions'</span><span·class="p">,</span><span·class="p"·data-group-id="8934743988-57"><<</span><span·class="mi">163</span><span·class="p">,</span><span·class="mi">15</span><span·class="p">,</span><span·class="mi">160</span><span·class="p">,</span><span·class="mi">13</span><span·class="p">,</span><span·class="mi">48</span><span·class="p">,</span><span·class="mi">11</span><span·class="p">,</span><span·class="mi">128</span><span·class="p">,</span><span·class="w"> |
| 311 | ················································</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">16</span><span·class="p">,</span><span·class="mi">161</span><span·class="p">,</span><span·class="mi">6</span><span·class="p">,</span><span·class="mi">128</span><span·class="p">,</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">17</span><span·class="p">,</span><span·class="mi">129</span><span·class="p">,</span><span·class="w"> | 311 | ················································</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">16</span><span·class="p">,</span><span·class="mi">161</span><span·class="p">,</span><span·class="mi">6</span><span·class="p">,</span><span·class="mi">128</span><span·class="p">,</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">17</span><span·class="p">,</span><span·class="mi">129</span><span·class="p">,</span><span·class="w"> |
| 312 | ················································</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">255</span><span·class="p"·data-group-id="8 | 312 | ················································</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">255</span><span·class="p"·data-group-id="8934743988-57">>></span><span·class="p"·data-group-id="8934743988-56">}</span><span·class="p"·data-group-id="8934743988-48">}</span><span·class="p"·data-group-id="8934743988-47">}</span><span·class="gp·unselectable"> |
| 313 | 11>·</span><span·class="nc">'GUI'</span><span·class="p">:</span><span·class="nf">decode_part</span><span·class="p"·data-group-id="8 | 313 | 11>·</span><span·class="nc">'GUI'</span><span·class="p">:</span><span·class="nf">decode_part</span><span·class="p"·data-group-id="8934743988-58">(</span><span·class="n">UndecWindowKey</span><span·class="p">,</span><span·class="w">·</span><span·class="n">UndecWindowParts</span><span·class="p"·data-group-id="8934743988-58">)</span><span·class="p">.</span><span·class="w"> |
| 314 | </span><span·class="p"·data-group-id="8 | 314 | </span><span·class="p"·data-group-id="8934743988-59">[</span><span·class="o">#</span><span·class="ss">'Button'</span><span·class="p"·data-group-id="8934743988-60">{</span><span·class="ss">number</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="m[·...·truncated·by·diffoscope;·len:·202,·SHA:·252da11f6b260b4a62e79e2011cbf123cb7cc72730dcdfae320adebac98049a8·...·]-60">}</span><span·class="p">,</span><span·class="w"> |
| 315 | ·</span><span·class="o">#</span><span·class="ss">'Button'</span><span·class="p"·data-group-id="8 | 315 | ·</span><span·class="o">#</span><span·class="ss">'Button'</span><span·class="p"·data-group-id="8934743988-61">{</span><span·class="ss">number</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">4</span><span·class="p">,</span><span·class="ss">on</span><span·class="w">·</span><span·class="o">=</span><span·cla[·...·truncated·by·diffoscope;·len:·85,·SHA:·9e52b32fc894778a1b635beec5fd813308a0c3c54bedf7f1871766be89533f6a·...·]-61">}</span><span·class="p">,</span><span·class="w"> |
| 316 | ·</span><span·class="o">#</span><span·class="ss">'Button'</span><span·class="p"·data-group-id="8 | 316 | ·</span><span·class="o">#</span><span·class="ss">'Button'</span><span·class="p"·data-group-id="8934743988-62">{</span><span·class="ss">number</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">5</span><span·class="p">,</span><span·class="ss">on</span><span·class="w">·</span><span·class="o">=</span><span·cla[·...·truncated·by·diffoscope;·len:·84,·SHA:·5a5045759c5f138a53c069f40d2b94c685bde39c7096479ec0a803581035140d·...·]-62">}</span><span·class="p">,</span><span·class="w"> |
| 317 | ·</span><span·class="o">#</span><span·class="ss">'Button'</span><span·class="p"·data-group-id="8 | 317 | ·</span><span·class="o">#</span><span·class="ss">'Button'</span><span·class="p"·data-group-id="8934743988-63">{</span><span·class="ss">number</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">6</span><span·class="p">,</span><span·class="ss">on</span><span·class="w">·</span><span·class="o">=</span><span·cla[·...·truncated·by·diffoscope;·len:·84,·SHA:·5a5045759c5f138a53c069f40d2b94c685bde39c7096479ec0a803581035140d·...·]-63">}</span><span·class="p">,</span><span·class="w"> |
| 318 | ·</span><span·class="o">#</span><span·class="ss">'Button'</span><span·class="p"·data-group-id="8 | 318 | ·</span><span·class="o">#</span><span·class="ss">'Button'</span><span·class="p"·data-group-id="8934743988-64">{</span><span·class="ss">number</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">7</span><span·class="p">,</span><span·class="ss">on</span><span·class="w">·</span><span·class="o">=</span><span·cla[·...·truncated·by·diffoscope;·len:·139,·SHA:·41e7db5bdf19105b00cf7fd5205f53e1f011d875569916a4f3a07384fb66c07b·...·]-59">]</span><span·class="gp·unselectable"> |
| 319 | 12>·</span><span·class="nc">'GUI'</span><span·class="p">:</span><span·class="nf">decode_part</span><span·class="p"·data-group-id="8 | 319 | 12>·</span><span·class="nc">'GUI'</span><span·class="p">:</span><span·class="nf">decode_part</span><span·class="p"·data-group-id="8934743988-65">(</span><span·class="n">UndecWindowKey</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">hd</span><span·class="p"·data-group-id="8934743988-66">(</span><span·class="n">UndecWindowParts</span><span·class="p"·data-group-id=[·...·truncated·by·diffoscope;·len:·65,·SHA:·27385e6e5ae591ef02e690a3ba839685f31464f37d76e07109c22eabe39d6195·...·]-65">)</span><span·class="p">.</span><span·class="w"> |
| 320 | </span><span·class="o">#</span><span·class="ss">'Button'</span><span·class="p"·data-group-id="8 | 320 | </span><span·class="o">#</span><span·class="ss">'Button'</span><span·class="p"·data-group-id="8934743988-67">{</span><span·class="ss">number</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">3</span><span·class="p">,</span><span·class="ss">on</span><span·class="w">·</span><span·class="o">=</span><span·cla[·...·truncated·by·diffoscope;·len:·84,·SHA:·5a5045759c5f138a53c069f40d2b94c685bde39c7096479ec0a803581035140d·...·]-67">}</span><span·class="gp·unselectable"> |
| 321 | 13>·</span><span·class="p"·data-group-id="8 | 321 | 13>·</span><span·class="p"·data-group-id="8934743988-68">{</span><span·class="ss">status</span><span·class="p">,</span><span·class="o">#</span><span·class="ss">'Status'</span><span·class="p"·data-group-id="8934743988-69">{</span><span·class="ss">actions</span><span·class="o">=</span><span·c[·...·truncated·by·diffoscope;·len:·517,·SHA:·ada129a11f43e5128350377380dc2428db1173b5447ec97ec611e0b8830e6fff·...·]-71">)</span><span·class="p">.</span><span·class="w"> |
| 322 | </span><span·class="p"·data-group-id="8 | 322 | </span><span·class="p"·data-group-id="8934743988-72">{</span><span·class="ss">status</span><span·class="p">,</span><span·class="o">#</span><span·class="ss">'Status'</span><span·class="p"·data-group-id="8934743988-73">{</span><span·class="ss">state</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">35</span><span·class="p">,</span><span·class="w"> |
| 323 | ··················</span><span·class="ss">buttonList</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="8 | 323 | ··················</span><span·class="ss">buttonList</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="8934743988-74">{</span><span·class="ss">'Status_buttonList'</span><span·class="p">,</span><span·class="p"·data-group-id="8934743988-75">[</span><span·class="p"·data-group-id="8934743988-76"><<</span><span·class="mi">48</span><span·class="p">,</span><span·class="mi">6</span><span·class="p">,</span><span·class="mi">128</span><span·class="p">,</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">3</span><span·class="p">,</span><span·class="mi">129</span><span·class="p">,</span><span·class="mi">1</span><span·class="p">,</span><span·class="w"> |
| 324 | ·······················································</span><span·class="mi">255</span><span·class="p"·data-group-id="8 | 324 | ·······················································</span><span·class="mi">255</span><span·class="p"·data-group-id="8934743988-76">>></span><span·class="p">,</span><span·class="w"> |
| 325 | ·····················································</span><span·class="p"·data-group-id="8 | 325 | ·····················································</span><span·class="p"·data-group-id="8934743988-77"><<</span><span·class="mi">48</span><span·class="p">,</span><span·class="mi">6</span><span·class="p">,</span><span·class="mi">128</span><span·class="p">,</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">4</span><sp[·...·truncated·by·diffoscope;·len:·187,·SHA:·b36c889fa372ea48138c7902c15a6175a7d037d60dec0d8013567d9da94a3e64·...·]-77">>></span><span·class="p">,</span><span·class="w"> |
| 326 | ·····················································</span><span·class="p"·data-group-id="8 | 326 | ·····················································</span><span·class="p"·data-group-id="8934743988-78"><<</span><span·class="mi">48</span><span·class="p">,</span><span·class="mi">6</span><span·class="p">,</span><span·class="mi">128</span><span·class="p">,</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">5</span><sp[·...·truncated·by·diffoscope;·len:·189,·SHA:·710cf146e03968060c2688051e42fae2eb22b47761a473087f2846cb032ecec6·...·]-78">>></span><span·class="p">,</span><span·class="w"> |
| 327 | ·····················································</span><span·class="p"·data-group-id="8 | 327 | ·····················································</span><span·class="p"·data-group-id="8934743988-79"><<</span><span·class="mi">48</span><span·class="p">,</span><span·class="mi">6</span><span·class="p">,</span><span·class="mi">128</span><span·class="p">,</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">6</span><sp[·...·truncated·by·diffoscope;·len:·189,·SHA:·710cf146e03968060c2688051e42fae2eb22b47761a473087f2846cb032ecec6·...·]-79">>></span><span·class="p">,</span><span·class="w"> |
| 328 | ·····················································</span><span·class="p"·data-group-id="8 | 328 | ·····················································</span><span·class="p"·data-group-id="8934743988-80"><<</span><span·class="mi">48</span><span·class="p">,</span><span·class="mi">6</span><span·class="p">,</span><span·class="mi">128</span><span·class="p">,</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">7</span><sp[·...·truncated·by·diffoscope;·len:·302,·SHA:·30c5eb7502c88c7c8d713839e9c7e568e4c527c12d48ce0a19fba9b27a2a5ca7·...·]-74">}</span><span·class="p">,</span><span·class="w"> |
| 329 | ··················</span><span·class="ss">enabled</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">false</span><span·class="p">,</span><span·class="w"> | 329 | ··················</span><span·class="ss">enabled</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">false</span><span·class="p">,</span><span·class="w"> |
| 330 | ··················</span><span·class="ss">actions</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="8 | 330 | ··················</span><span·class="ss">actions</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="8934743988-81">{</span><span·class="ss">'Status_actions'</span><span·class="p">,</span><span·class="p"·data-group-id="8934743988-82"><<</span><span·class="mi">163</span><span·class="p">,</span><span·class="mi">15</span><span·class="p">,</span><span·class="mi">160</span><span·class="p">,</span><span·class="mi">13</span><span·class="p">,</span><span·class="mi">48</span><span·class="p">,</span><span·class="mi">11</span><span·class="p">,</span><span·class="mi">128</span><span·class="p">,</span><span·class="w"> |
| 331 | ················································</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">16</span><span·class="p">,</span><span·class="mi">161</span><span·class="p">,</span><span·class="mi">6</span><span·class="p">,</span><span·class="mi">128</span><span·class="p">,</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">17</span><span·class="p">,</span><span·class="mi">129</span><span·class="p">,</span><span·class="w"> | 331 | ················································</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">16</span><span·class="p">,</span><span·class="mi">161</span><span·class="p">,</span><span·class="mi">6</span><span·class="p">,</span><span·class="mi">128</span><span·class="p">,</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">17</span><span·class="p">,</span><span·class="mi">129</span><span·class="p">,</span><span·class="w"> |
| 332 | ················································</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">255</span><span·class="p"·data-group-id="8 | 332 | ················································</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">255</span><span·class="p"·data-group-id="8934743988-82">>></span><span·class="p"·data-group-id="8934743988-81">}</span><span·class="p"·data-group-id="8934743988-73">}</span><span·class="p"·data-group-id="8934743988-72">}</span><span·class="gp·unselectable"> |
| 333 | 14>·</span><span·class="nc">'GUI'</span><span·class="p">:</span><span·class="nf">decode_part</span><span·class="p"·data-group-id="8 | 333 | 14>·</span><span·class="nc">'GUI'</span><span·class="p">:</span><span·class="nf">decode_part</span><span·class="p"·data-group-id="8934743988-83">(</span><span·class="n">ChoiceKey</span><span·class="p">,</span><span·class="w">·</span><span·class="n">ChoiceUndec</span><span·class="p"·data-group-id="8934743988-83">)</span><span·class="p">.</span><span·class="w"> |
| 334 | </span><span·class="p"·data-group-id="8 | 334 | </span><span·class="p"·data-group-id="8934743988-84">{</span><span·class="ss">possibleActions</span><span·class="p">,</span><span·class="p"·data-group-id="8934743988-85">[</span><span·class="o">#</span><span·class="ss">'Action'</span><span·class="p"·data-group-id="8934743988-86">{</span><span·class="ss">number</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">16</span><span·class="p">,</span><span·class="w"> |
| 335 | ····························</span><span·class="ss">handle</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">'Button'</span><span·class="p"·data-group-id="8 | 335 | ····························</span><span·class="ss">handle</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">'Button'</span><span·class="p"·data-group-id="8934743988-87">{</span><span·class="ss">number</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">17</span><span·class="p">,</span><span·class="ss">on</span><span·class="w">·</span><span·class="o">=</span><span·cl[·...·truncated·by·diffoscope;·len:·247,·SHA:·bc52c20c50b107e476cf3628d7b0e77b0e9036aac37f6716c056cd0cc7026d5b·...·]-84">}</span></code></pre><h2·id="selective-decode"·class="section-heading"> |
| 336 | ··<a·href="#selective-decode"·class="hover-link"> | 336 | ··<a·href="#selective-decode"·class="hover-link"> |
| 337 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 337 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
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| 481 | <p>Performs·a·test·of·encode·and·decode·of·types·in·<code·class="inline">Module</code>.</p><p>The·generated·functions·are·called·by·this·function.·This·function·is | 481 | <p>Performs·a·test·of·encode·and·decode·of·types·in·<code·class="inline">Module</code>.</p><p>The·generated·functions·are·called·by·this·function.·This·function·is |
| 482 | useful·for·testing·to·ensure·that·the·generated·encode·and·decode | 482 | useful·for·testing·to·ensure·that·the·generated·encode·and·decode |
| 483 | functions·as·well·as·the·general·runtime·support·work·as·expected.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>Currently,·the·<code·class="inline">test</code>·functions·have·many·limitations.·Essentially,·they·will | 483 | functions·as·well·as·the·general·runtime·support·work·as·expected.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>Currently,·the·<code·class="inline">test</code>·functions·have·many·limitations.·Essentially,·they·will |
| 484 | mostly·work·for·old·specifications·based·on·the·1997·standard·for·ASN.1,·but | 484 | mostly·work·for·old·specifications·based·on·the·1997·standard·for·ASN.1,·but |
| 485 | not·for·most·modern-style·applications.·Another·limitation·is·that·the·<code·class="inline">test</code> | 485 | not·for·most·modern-style·applications.·Another·limitation·is·that·the·<code·class="inline">test</code> |
| 486 | functions·may·not·work·if·options·that·change·code·generations·strategies·such | 486 | functions·may·not·work·if·options·that·change·code·generations·strategies·such |
| 487 | as·the·options·<code·class="inline">macro_name_prefix</code>·and·<code·class="inline">record_name_prefix</code>·have·been·used.</p></section><ul><li><a·href="#test/1"><code·class="inline">test/1</code></a>·iterates·over·all·types·in·<code·class="inline">Module</code>.</li><li><a·href="#test/2"><code·class="inline">test/2</code></a>·tests·type·<code·class="inline">Type</code>·with·a·random·value.</li><li><a·href="#test/3"><code·class="inline">test/3</code></a>·tests·type·<code·class="inline">Type</code>·with·<code·class="inline">Value</code>.</li></ul><p>Schematically,·the·following·occurs·for·each·type·in·the·module:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 487 | as·the·options·<code·class="inline">macro_name_prefix</code>·and·<code·class="inline">record_name_prefix</code>·have·been·used.</p></section><ul><li><a·href="#test/1"><code·class="inline">test/1</code></a>·iterates·over·all·types·in·<code·class="inline">Module</code>.</li><li><a·href="#test/2"><code·class="inline">test/2</code></a>·tests·type·<code·class="inline">Type</code>·with·a·random·value.</li><li><a·href="#test/3"><code·class="inline">test/3</code></a>·tests·type·<code·class="inline">Type</code>·with·<code·class="inline">Value</code>.</li></ul><p>Schematically,·the·following·occurs·for·each·type·in·the·module:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="1386565712-1">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Value</span><span·class="p"·data-group-id="1386565712-1">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·c[·...·truncated·by·diffoscope;·len:·274,·SHA:·5b949a2cf0c12cd4d51f2eb9aac19a9bac81fe48900d90c173923d31e634e0a0·...·]-2">)</span><span·class="p">,</span><span·class="w"> |
| 488 | </span><span·class="p"·data-group-id=" | 488 | </span><span·class="p"·data-group-id="1386565712-3">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Bytes</span><span·class="p"·data-group-id="1386565712-3">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·c[·...·truncated·by·diffoscope;·len:·273,·SHA:·bf20872ef72126928f1f2ffbc1c8516987571a7348d0428f575b45f48eb92ef7·...·]-4">)</span><span·class="p">,</span><span·class="w"> |
| 489 | </span><span·class="p"·data-group-id=" | 489 | </span><span·class="p"·data-group-id="1386565712-5">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Value</span><span·class="p"·data-group-id="1386565712-5">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·c[·...·truncated·by·diffoscope;·len:·273,·SHA:·4689f751ae099104867a90f74d829a4bde8e1a08ab27601dcdddca969a629e91·...·]-6">)</span><span·class="p">.</span></code></pre><p>The·<code·class="inline">test</code>·functions·use·the·<code·class="inline">*.asn1db</code>·files·for·all·included·modules.·If·they |
| 490 | are·located·in·a·different·directory·than·the·current·working·directory,·use·the | 490 | are·located·in·a·different·directory·than·the·current·working·directory,·use·the |
| 491 | <code·class="inline">include</code>·option·to·add·paths.·This·is·only·needed·when·automatically·generating | 491 | <code·class="inline">include</code>·option·to·add·paths.·This·is·only·needed·when·automatically·generating |
| 492 | values.·For·static·values·using·<code·class="inline">Value</code>·no·options·are·needed.</p> | 492 | values.·For·static·values·using·<code·class="inline">Value</code>·no·options·are·needed.</p> |
| 493 | ··</section> | 493 | ··</section> |
| 494 | </section> | 494 | </section> |
| 495 | <section·class="detail"·id="value/2"> | 495 | <section·class="detail"·id="value/2"> |
| Offset 548, 15 lines modified | Offset 548, 15 lines modified | ||
| 548 | ······<p·class="built-using"> | 548 | ······<p·class="built-using"> |
| 549 | ········Built·using | 549 | ········Built·using |
| 550 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 550 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 551 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 551 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 552 | ······</p> | 552 | ······</p> |
| 553 | <p>Copyright·©·1996-202 | 553 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 554 | ····</footer> | 554 | ····</footer> |
| 555 | ··</div> | 555 | ··</div> |
| 556 | </main> | 556 | </main> |
| 557 | </div> | 557 | </div> |
| 558 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 558 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 559 | ··<script> | 559 | ··<script> |
| 560 | ··let·initialized·=·false; | 560 | ··let·initialized·=·false; |
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| 169 | </h3> | 169 | </h3> |
| 170 | <ul><li><p>The·JER·backend·will·now·include·the·SIZE·constraint·in·the·type·info·for·OCTET·STRINGs,·and·a·SIZE·constraint·with·a·range·will·now·be·included·for·BIT·STRINGs.·This·does·not·change·the·actual·encoding·or·decoding·of·JER,·but·can·be·useful·for·tools.</p><p>Own·Id:·OTP-19542·Aux·Id:·ERIERL-1204,·<a·href="https://github.com/erlang/otp/pull/9588"·title="">PR-9588</a></p></li></ul><h3·id="improvements-and-new-features-1"·class="section-heading"> | 170 | <ul><li><p>The·JER·backend·will·now·include·the·SIZE·constraint·in·the·type·info·for·OCTET·STRINGs,·and·a·SIZE·constraint·with·a·range·will·now·be·included·for·BIT·STRINGs.·This·does·not·change·the·actual·encoding·or·decoding·of·JER,·but·can·be·useful·for·tools.</p><p>Own·Id:·OTP-19542·Aux·Id:·ERIERL-1204,·<a·href="https://github.com/erlang/otp/pull/9588"·title="">PR-9588</a></p></li></ul><h3·id="improvements-and-new-features-1"·class="section-heading"> |
| 171 | ··<a·href="#improvements-and-new-features-1"·class="hover-link"> | 171 | ··<a·href="#improvements-and-new-features-1"·class="hover-link"> |
| 172 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 172 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 173 | ··</a> | 173 | ··</a> |
| 174 | ··<span·class="text">Improvements·and·New·Features</span> | 174 | ··<span·class="text">Improvements·and·New·Features</span> |
| 175 | </h3> | 175 | </h3> |
| 176 | <ul><li><p>When·using·the·JSON·encoding·rules,·it·is·now·possible·to·call·the·decode/2·function·in·the·following·way·with·data·that·has·already·been·decoded·by·json:decode/1:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">SomeModule</span><span·class="p">:</span><span·class="nf">decode</span><span·class="p"·data-group-id=" | 176 | <ul><li><p>When·using·the·JSON·encoding·rules,·it·is·now·possible·to·call·the·decode/2·function·in·the·following·way·with·data·that·has·already·been·decoded·by·json:decode/1:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">SomeModule</span><span·class="p">:</span><span·class="nf">decode</span><span·class="p"·data-group-id="3775743645-1">(</span><span·class="n">Type</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3775743645-2">{</span><span·class="ss">json_decoded</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Decode[·...·truncated·by·diffoscope;·len:·102,·SHA:·9e63ff70a3d6f8bf63380d79d4e614386e77a0a30d42ca6ca038f37653f554f6·...·]-1">)</span><span·class="p">.</span></code></pre><p>Own·Id:·OTP-19547·Aux·Id:·ERIERL-1206,·<a·href="https://github.com/erlang/otp/pull/9611"·title="">PR-9611</a></p></li></ul><h2·id="asn1-5-3-2"·class="section-heading"> |
| 177 | ··<a·href="#asn1-5-3-2"·class="hover-link"> | 177 | ··<a·href="#asn1-5-3-2"·class="hover-link"> |
| 178 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 178 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 179 | ··</a> | 179 | ··</a> |
| 180 | ··<span·class="text">Asn1·5.3.2</span> | 180 | ··<span·class="text">Asn1·5.3.2</span> |
| 181 | </h2> | 181 | </h2> |
| 182 | <h3·id="fixed-bugs-and-malfunctions-3"·class="section-heading"> | 182 | <h3·id="fixed-bugs-and-malfunctions-3"·class="section-heading"> |
| 183 | ··<a·href="#fixed-bugs-and-malfunctions-3"·class="hover-link"> | 183 | ··<a·href="#fixed-bugs-and-malfunctions-3"·class="hover-link"> |
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| 1613 | ······<p·class="built-using"> | 1613 | ······<p·class="built-using"> |
| 1614 | ········Built·using | 1614 | ········Built·using |
| 1615 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1615 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1616 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1616 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1617 | ······</p> | 1617 | ······</p> |
| 1618 | <p>Copyright·©·1996-202 | 1618 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1619 | ····</footer> | 1619 | ····</footer> |
| 1620 | ··</div> | 1620 | ··</div> |
| 1621 | </main> | 1621 | </main> |
| 1622 | </div> | 1622 | </div> |
| 1623 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1623 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1624 | ··<script> | 1624 | ··<script> |
| 1625 | ··let·initialized·=·false; | 1625 | ··let·initialized·=·false; |
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| 141 | ······<p·class="built-using"> | 141 | ······<p·class="built-using"> |
| 142 | ········Built·using | 142 | ········Built·using |
| 143 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 143 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 144 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 144 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 145 | ······</p> | 145 | ······</p> |
| 146 | <p>Copyright·©·1996-202 | 146 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 147 | ····</footer> | 147 | ····</footer> |
| 148 | ··</div> | 148 | ··</div> |
| 149 | </main> | 149 | </main> |
| 150 | </div> | 150 | </div> |
| 151 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 151 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 152 | ··<script> | 152 | ··<script> |
| 153 | ··let·initialized·=·false; | 153 | ··let·initialized·=·false; |
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| 143 | ······<p·class="built-using"> | 143 | ······<p·class="built-using"> |
| 144 | ········Built·using | 144 | ········Built·using |
| 145 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 145 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 146 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 146 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 147 | ······</p> | 147 | ······</p> |
| 148 | <p>Copyright·©·1996-202 | 148 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 149 | ····</footer> | 149 | ····</footer> |
| 150 | ··</div> | 150 | ··</div> |
| 151 | </main> | 151 | </main> |
| 152 | </div> | 152 | </div> |
| 153 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 153 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 154 | ··<script> | 154 | ··<script> |
| 155 | ··let·initialized·=·false; | 155 | ··let·initialized·=·false; |
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| 311 | ······<p·class="built-using"> | 311 | ······<p·class="built-using"> |
| 312 | ········Built·using | 312 | ········Built·using |
| 313 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 313 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 314 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 314 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 315 | ······</p> | 315 | ······</p> |
| 316 | <p>Copyright·©·1996-202 | 316 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 317 | ····</footer> | 317 | ····</footer> |
| 318 | ··</div> | 318 | ··</div> |
| 319 | </main> | 319 | </main> |
| 320 | </div> | 320 | </div> |
| 321 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 321 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 322 | ··<script> | 322 | ··<script> |
| 323 | ··let·initialized·=·false; | 323 | ··let·initialized·=·false; |
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| 211 | <a·href="write_test_chapter.html#intro">Writing·Test·Suites</a>.</p><p>A·test·case·is·considered·successful·if·it·returns·to·the·caller,·no·matter·what | 211 | <a·href="write_test_chapter.html#intro">Writing·Test·Suites</a>.</p><p>A·test·case·is·considered·successful·if·it·returns·to·the·caller,·no·matter·what |
| 212 | the·returned·value·is.·However,·a·few·return·values·have·special·meaning·as | 212 | the·returned·value·is.·However,·a·few·return·values·have·special·meaning·as |
| 213 | follows:</p><ul><li><code·class="inline">{skip,Reason}</code>·indicates·that·the·test·case·is·skipped.</li><li><code·class="inline">{comment,Comment}</code>·prints·a·comment·in·the·log·for·the·test·case.</li><li><code·class="inline">{save_config,Config}</code>·makes·the·<code·class="inline">Common·Test</code>·test·server·pass·<code·class="inline">Config</code>·to | 213 | follows:</p><ul><li><code·class="inline">{skip,Reason}</code>·indicates·that·the·test·case·is·skipped.</li><li><code·class="inline">{comment,Comment}</code>·prints·a·comment·in·the·log·for·the·test·case.</li><li><code·class="inline">{save_config,Config}</code>·makes·the·<code·class="inline">Common·Test</code>·test·server·pass·<code·class="inline">Config</code>·to |
| 214 | the·next·test·case.</li></ul><p>A·test·case·failure·is·specified·as·a·runtime·error·(a·crash),·no·matter·what | 214 | the·next·test·case.</li></ul><p>A·test·case·failure·is·specified·as·a·runtime·error·(a·crash),·no·matter·what |
| 215 | the·reason·for·termination·is.·If·you·use·Erlang·pattern·matching·effectively, | 215 | the·reason·for·termination·is.·If·you·use·Erlang·pattern·matching·effectively, |
| 216 | you·can·take·advantage·of·this·property.·The·result·is·concise·and·readable·test | 216 | you·can·take·advantage·of·this·property.·The·result·is·concise·and·readable·test |
| 217 | case·functions·that·look·much·more·like·scripts·than·actual·programs.·A·simple | 217 | case·functions·that·look·much·more·like·scripts·than·actual·programs.·A·simple |
| 218 | example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">session</span><span·class="p"·data-group-id=" | 218 | example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">session</span><span·class="p"·data-group-id="7936365602-1">(</span><span·class="p">_</span><span·class="n">Config</span><span·class="p"·data-group-id="7936365602-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 219 | ····</span><span·class="p"·data-group-id=" | 219 | ····</span><span·class="p"·data-group-id="7936365602-2">{</span><span·class="ss">started</span><span·class="p">,</span><span·class="n">ServerId</span><span·class="p"·data-group-id="7936365602-2">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">my_ser[·...·truncated·by·diffoscope;·len:·157,·SHA:·59f7cf78ca4ffdc1d43654921a72e71eee64654bd0c468f6a71ae25865d6ede5·...·]-3">)</span><span·class="p">,</span><span·class="w"> |
| 220 | ····</span><span·class="p"·data-group-id=" | 220 | ····</span><span·class="p"·data-group-id="7936365602-4">{</span><span·class="ss">clients</span><span·class="p">,</span><span·class="p"·data-group-id="7936365602-5">[</span><span·class="p"·data-group-id="7936365602-5">]</span><span·class="p"·data-group-id="7936365602-4">}</span><span·class="w">·</s[·...·truncated·by·diffoscope;·len:·269,·SHA:·768f779cef7759cdfada2a96438ef058c809867f6064715bdc42533657f86a99·...·]-6">)</span><span·class="p">,</span><span·class="w"> |
| 221 | ····</span><span·class="n">MyId</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">self</span><span·class="p"·data-group-id=" | 221 | ····</span><span·class="n">MyId</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">self</span><span·class="p"·data-group-id="7936365602-7">(</span><span·class="p"·data-group-id="7936365602-7">)</span><span·class="p">,</span><span·class="w"> |
| 222 | ····</span><span·class="ss">connected</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">my_server</span><span·class="p">:</span><span·class="nf">connect</span><span·class="p"·data-group-id=" | 222 | ····</span><span·class="ss">connected</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">my_server</span><span·class="p">:</span><span·class="nf">connect</span><span·class="p"·data-group-id="7936365602-8">(</span><span·class="n">ServerId</span><span·class="p">,</span><span·class="w">·</span><span·class="n">MyId</span><span·class="p"·data-group-id="7936365602-8">)</span><span·class="p">,</span><span·class="w"> |
| 223 | ····</span><span·class="p"·data-group-id=" | 223 | ····</span><span·class="p"·data-group-id="7936365602-9">{</span><span·class="ss">clients</span><span·class="p">,</span><span·class="p"·data-group-id="7936365602-10">[</span><span·class="n">MyId</span><span·class="p"·data-group-id="7936365602-10">]</span><span·class="p"·data-group-id="7936365602-9"[·...·truncated·by·diffoscope;·len:·299,·SHA:·8cbb94bf6e4eaf09f82e7b5140d78f4084bc623d193dbf01e5bbf72accfb2570·...·]-11">)</span><span·class="p">,</span><span·class="w"> |
| 224 | ····</span><span·class="ss">disconnected</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">my_server</span><span·class="p">:</span><span·class="nf">disconnect</span><span·class="p"·data-group-id=" | 224 | ····</span><span·class="ss">disconnected</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">my_server</span><span·class="p">:</span><span·class="nf">disconnect</span><span·class="p"·data-group-id="7936365602-12">(</span><span·class="n">ServerId</span><span·class="p">,</span><span·class="w">·</span><span·class="n">MyId</span><span·class="p"·data-group-id="7936365602-12">)</span><span·class="p">,</span><span·class="w"> |
| 225 | ····</span><span·class="p"·data-group-id=" | 225 | ····</span><span·class="p"·data-group-id="7936365602-13">{</span><span·class="ss">clients</span><span·class="p">,</span><span·class="p"·data-group-id="7936365602-14">[</span><span·class="p"·data-group-id="7936365602-14">]</span><span·class="p"·data-group-id="7936365602-13">}</span><span·class="w">[·...·truncated·by·diffoscope;·len:·274,·SHA:·c2c67e498cd5e5045100f1a418bd40a7b035260ddbcf28a9cad504f5f800dc02·...·]-15">)</span><span·class="p">,</span><span·class="w"> |
| 226 | ····</span><span·class="ss">stopped</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">my_server</span><span·class="p">:</span><span·class="nf">stop</span><span·class="p"·data-group-id=" | 226 | ····</span><span·class="ss">stopped</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">my_server</span><span·class="p">:</span><span·class="nf">stop</span><span·class="p"·data-group-id="7936365602-16">(</span><span·class="n">ServerId</span><span·class="p"·data-group-id="7936365602-16">)</span><span·class="p">.</span></code></pre><p>As·a·test·suite·runs,·all·information·(including·output·to·<code·class="inline">stdout</code>)·is·recorded |
| 227 | in·many·different·log·files.·A·minimum·of·information·is·displayed·in·the·user | 227 | in·many·different·log·files.·A·minimum·of·information·is·displayed·in·the·user |
| 228 | console·(only·start·and·stop·information,·plus·a·note·for·each·failed·test | 228 | console·(only·start·and·stop·information,·plus·a·note·for·each·failed·test |
| 229 | case).</p><p>The·result·from·each·test·case·is·recorded·in·a·dedicated·HTML·log·file,·created | 229 | case).</p><p>The·result·from·each·test·case·is·recorded·in·a·dedicated·HTML·log·file,·created |
| 230 | for·the·particular·test·run.·An·overview·page·displays·each·test·case | 230 | for·the·particular·test·run.·An·overview·page·displays·each·test·case |
| 231 | represented·by·a·table·row·showing·total·execution·time,·if·the·case·was | 231 | represented·by·a·table·row·showing·total·execution·time,·if·the·case·was |
| 232 | successful,·failed,·or·skipped,·plus·an·optional·user·comment.·For·a·failed·test | 232 | successful,·failed,·or·skipped,·plus·an·optional·user·comment.·For·a·failed·test |
| 233 | case,·the·reason·for·termination·is·also·printed·in·the·comment·field.·The | 233 | case,·the·reason·for·termination·is·also·printed·in·the·comment·field.·The |
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| 299 | ······<p·class="built-using"> | 299 | ······<p·class="built-using"> |
| 300 | ········Built·using | 300 | ········Built·using |
| 301 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 301 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 302 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 302 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 303 | ······</p> | 303 | ······</p> |
| 304 | <p>Copyright·©·1996-202 | 304 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 305 | ····</footer> | 305 | ····</footer> |
| 306 | ··</div> | 306 | ··</div> |
| 307 | </main> | 307 | </main> |
| 308 | </div> | 308 | </div> |
| 309 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 309 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 310 | ··<script> | 310 | ··<script> |
| 311 | ··let·initialized·=·false; | 311 | ··let·initialized·=·false; |
| Offset 179, 15 lines modified | Offset 179, 15 lines modified | ||
| 179 | ······<p·class="built-using"> | 179 | ······<p·class="built-using"> |
| 180 | ········Built·using | 180 | ········Built·using |
| 181 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 181 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 182 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 182 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 183 | ······</p> | 183 | ······</p> |
| 184 | <p>Copyright·©·1996-202 | 184 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 185 | ····</footer> | 185 | ····</footer> |
| 186 | ··</div> | 186 | ··</div> |
| 187 | </main> | 187 | </main> |
| 188 | </div> | 188 | </div> |
| 189 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 189 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 190 | ··<script> | 190 | ··<script> |
| 191 | ··let·initialized·=·false; | 191 | ··let·initialized·=·false; |
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| 138 | properties·without·modifying·the·test·suites·using·the·data.·Examples·of | 138 | properties·without·modifying·the·test·suites·using·the·data.·Examples·of |
| 139 | configuration·data·follows:</p><ul><li>Addresses·to·the·test·plant·or·other·instruments</li><li>User·login·information</li><li>Names·of·files·needed·by·the·test</li><li>Names·of·programs·to·be·executed·during·the·test</li><li>Any·other·variable·needed·by·the·test</li></ul><h2·id="syntax"·class="section-heading"> | 139 | configuration·data·follows:</p><ul><li>Addresses·to·the·test·plant·or·other·instruments</li><li>User·login·information</li><li>Names·of·files·needed·by·the·test</li><li>Names·of·programs·to·be·executed·during·the·test</li><li>Any·other·variable·needed·by·the·test</li></ul><h2·id="syntax"·class="section-heading"> |
| 140 | ··<a·href="#syntax"·class="hover-link"> | 140 | ··<a·href="#syntax"·class="hover-link"> |
| 141 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 141 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 142 | ··</a> | 142 | ··</a> |
| 143 | ··<span·class="text">Syntax</span> | 143 | ··<span·class="text">Syntax</span> |
| 144 | </h2> | 144 | </h2> |
| 145 | <p>A·configuration·file·can·contain·any·number·of·elements·of·the·type:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 145 | <p>A·configuration·file·can·contain·any·number·of·elements·of·the·type:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="5953613988-1">{</span><span·class="n">CfgVarName</span><span·class="p">,</span><span·class="n">Value</span><span·class="p"·data-group-id="5953613988-1">}</span><span·class="p">.</span></code></pre><p>where</p><pre><code·class="makeup·erlang"·translate="no"[·...·truncated·by·diffoscope;·len:·228,·SHA:·215e64eba117cc5e25ef62649289b6bff40ca1d1645c8307b10a49979ad187f5·...·]-1">)</span><span·class="w"> |
| 146 | </span><span·class="n">Value</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">term</span><span·class="p"·data-group-id="0 | 146 | </span><span·class="n">Value</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">term</span><span·class="p"·data-group-id="3303035363-2">(</span><span·class="p"·data-group-id="3303035363-2">)</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id="3303035363-3">[</span><span·class="p"·data-group-id="3303035363-4">{</span><sp[·...·truncated·by·diffoscope;·len:·176,·SHA:·dcbeff210ab31d060fabc6fd331b98a37d729452da7323490ac4b5743946ca90·...·]-3">]</span></code></pre><h2·id="requiring-and-reading-configuration-data"·class="section-heading"> |
| 147 | ··<a·href="#requiring-and-reading-configuration-data"·class="hover-link"> | 147 | ··<a·href="#requiring-and-reading-configuration-data"·class="hover-link"> |
| 148 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 148 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 149 | ··</a> | 149 | ··</a> |
| 150 | ··<span·class="text">Requiring·and·Reading·Configuration·Data</span> | 150 | ··<span·class="text">Requiring·and·Reading·Configuration·Data</span> |
| 151 | </h2> | 151 | </h2> |
| 152 | <p><a·href=""·id="require_config_data"></a></p><p>In·a·test·suite,·one·must·<em>require</em>·that·a·configuration·variable·(<code·class="inline">CfgVarName</code> | 152 | <p><a·href=""·id="require_config_data"></a></p><p>In·a·test·suite,·one·must·<em>require</em>·that·a·configuration·variable·(<code·class="inline">CfgVarName</code> |
| 153 | in·the·previous·definition)·exists·before·attempting·to·read·the·associated | 153 | in·the·previous·definition)·exists·before·attempting·to·read·the·associated |
| Offset 166, 21 lines modified | Offset 166, 21 lines modified | ||
| 166 | <code·class="inline">{require,AliasName,CfgVarName}</code>.·The·arguments·<code·class="inline">AliasName</code>·and·<code·class="inline">CfgVarName</code>·are | 166 | <code·class="inline">{require,AliasName,CfgVarName}</code>.·The·arguments·<code·class="inline">AliasName</code>·and·<code·class="inline">CfgVarName</code>·are |
| 167 | the·same·as·the·arguments·to·<a·href="ct.html#require/1"><code·class="inline">ct:require/1,2</code></a>.·<code·class="inline">AliasName</code> | 167 | the·same·as·the·arguments·to·<a·href="ct.html#require/1"><code·class="inline">ct:require/1,2</code></a>.·<code·class="inline">AliasName</code> |
| 168 | becomes·an·alias·for·the·configuration·variable,·and·can·be·used·as·reference·to | 168 | becomes·an·alias·for·the·configuration·variable,·and·can·be·used·as·reference·to |
| 169 | the·configuration·data·value.·The·configuration·variable·can·be·associated·with | 169 | the·configuration·data·value.·The·configuration·variable·can·be·associated·with |
| 170 | any·number·of·alias·names,·but·each·name·must·be·unique·within·the·same·test | 170 | any·number·of·alias·names,·but·each·name·must·be·unique·within·the·same·test |
| 171 | suite.·The·two·main·uses·for·alias·names·follows:</p><ul><li>To·identify·connections·(described·later).</li><li>To·help·adapt·configuration·data·to·a·test·suite·(or·test·case)·and·improve | 171 | suite.·The·two·main·uses·for·alias·names·follows:</p><ul><li>To·identify·connections·(described·later).</li><li>To·help·adapt·configuration·data·to·a·test·suite·(or·test·case)·and·improve |
| 172 | readability.</li></ul><p>To·read·the·value·of·a·configuration·variable,·use·function | 172 | readability.</li></ul><p>To·read·the·value·of·a·configuration·variable,·use·function |
| 173 | <a·href="ct.html#get_config/1"><code·class="inline">get_config/1,2,3</code></a>.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">suite</span><span·class="p"·data-group-id=" | 173 | <a·href="ct.html#get_config/1"><code·class="inline">get_config/1,2,3</code></a>.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">suite</span><span·class="p"·data-group-id="3854517112-1">(</span><span·class="p"·data-group-id="3854517112-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 174 | ····</span><span·class="p"·data-group-id=" | 174 | ····</span><span·class="p"·data-group-id="3854517112-2">[</span><span·class="p"·data-group-id="3854517112-3">{</span><span·class="ss">require</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">domain</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">'CO[·...·truncated·by·diffoscope;·len:·124,·SHA:·4f7a6662e2fc9a46fa062a43ab7b7994b14199c0a7e3fac70d8c65883a52bdca·...·]-2">]</span><span·class="p">.</span><span·class="w"> |
| 175 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> | 175 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> |
| 176 | </span><span·class="nf">testcase</span><span·class="p"·data-group-id=" | 176 | </span><span·class="nf">testcase</span><span·class="p"·data-group-id="3854517112-4">(</span><span·class="n">Config</span><span·class="p"·data-group-id="3854517112-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 177 | ····</span><span·class="n">Domain</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">ct</span><span·class="p">:</span><span·class="nf">get_config</span><span·class="p"·data-group-id=" | 177 | ····</span><span·class="n">Domain</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">ct</span><span·class="p">:</span><span·class="nf">get_config</span><span·class="p"·data-group-id="3854517112-5">(</span><span·class="ss">domain</span><span·class="p"·data-group-id="3854517112-5">)</span><span·class="p">,</span><span·class="w"> |
| 178 | ····</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span></code></pre><h2·id="using-configuration-variables-defined-in-multiple-files"·class="section-heading"> | 178 | ····</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span></code></pre><h2·id="using-configuration-variables-defined-in-multiple-files"·class="section-heading"> |
| 179 | ··<a·href="#using-configuration-variables-defined-in-multiple-files"·class="hover-link"> | 179 | ··<a·href="#using-configuration-variables-defined-in-multiple-files"·class="hover-link"> |
| 180 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 180 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 181 | ··</a> | 181 | ··</a> |
| 182 | ··<span·class="text">Using·Configuration·Variables·Defined·in·Multiple·Files</span> | 182 | ··<span·class="text">Using·Configuration·Variables·Defined·in·Multiple·Files</span> |
| 183 | </h2> | 183 | </h2> |
| 184 | <p>If·a·configuration·variable·is·defined·in·multiple·files·and·you·want·to·access | 184 | <p>If·a·configuration·variable·is·defined·in·multiple·files·and·you·want·to·access |
| Offset 257, 19 lines modified | Offset 257, 19 lines modified | ||
| 257 | ···<ftp_host> | 257 | ···<ftp_host> |
| 258 | ·······<ftp>"targethost"</ftp> | 258 | ·······<ftp>"targethost"</ftp> |
| 259 | ·······<username>"tester"</username> | 259 | ·······<username>"tester"</username> |
| 260 | ·······<password>"letmein"</password> | 260 | ·······<password>"letmein"</password> |
| 261 | ···</ftp_host> | 261 | ···</ftp_host> |
| 262 | ···<lm_directory>"/test/loadmodules"</lm_directory> | 262 | ···<lm_directory>"/test/loadmodules"</lm_directory> |
| 263 | </config></code></pre><p>Once·read,·this·file·produces·the·same·configuration·variables·as·the·following | 263 | </config></code></pre><p>Once·read,·this·file·produces·the·same·configuration·variables·as·the·following |
| 264 | text·file:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 264 | text·file:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="5713412521-1">{</span><span·class="ss">ftp_host</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="5713412521-2">[</span><span·class="p"·data-group-id="5713412521-3">{</span><span·class="ss">ftp</span><span·class="p">,</sp[·...·truncated·by·diffoscope;·len:·89,·SHA:·00c1ee7290ad703ae95feb1e45c3602d1e3cb76c0157bfbeac63e3bcaf352625·...·]-3">}</span><span·class="p">,</span><span·class="w"> |
| 265 | ············</span><span·class="p"·data-group-id=" | 265 | ············</span><span·class="p"·data-group-id="5713412521-4">{</span><span·class="ss">username</span><span·class="p">,</span><span·class="s">"tester"</span><span·class="p"·data-group-id="5713412521-4">}</span><span·class="p">,</span><span·class="w"> |
| 266 | ············</span><span·class="p"·data-group-id=" | 266 | ············</span><span·class="p"·data-group-id="5713412521-5">{</span><span·class="ss">password</span><span·class="p">,</span><span·class="s">"letmein"</span><span·class="p"·data-group-id="5713412521-5">}</span><span·class="p"·data-group-id="5713412521-2">]</span><span·class="p"·data-group-id=[·...·truncated·by·diffoscope;·len:·11,·SHA:·a7cf1acf27c4476848e8e96c25d70585feeefc8743d8291b81194ce3b27649c6·...·]-1">}</span><span·class="p">.</span><span·class="w"> |
| 267 | </span><span·class="p"·data-group-id=" | 267 | </span><span·class="p"·data-group-id="5713412521-6">{</span><span·class="ss">lm_directory</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"/test/loadmodules"</span><span·class="p"·data-group-id="5713412521-6">}</span><span·class="p">.</span></code></pre><h3·id="implement-a-user-specific-handler"·class="section-heading"> |
| 268 | ··<a·href="#implement-a-user-specific-handler"·class="hover-link"> | 268 | ··<a·href="#implement-a-user-specific-handler"·class="hover-link"> |
| 269 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 269 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 270 | ··</a> | 270 | ··</a> |
| 271 | ··<span·class="text">Implement·a·User-Specific·Handler</span> | 271 | ··<span·class="text">Implement·a·User-Specific·Handler</span> |
| 272 | </h3> | 272 | </h3> |
| 273 | <p>The·user-specific·handler·can·be·written·to·handle·special·configuration·file | 273 | <p>The·user-specific·handler·can·be·written·to·handle·special·configuration·file |
| 274 | formats.·The·parameter·can·be·either·file·names·or·configuration·strings·(the | 274 | formats.·The·parameter·can·be·either·file·names·or·configuration·strings·(the |
| Offset 280, 150 lines modified | Offset 280, 150 lines modified | ||
| 280 | specified·configuration·parameter·is·valid:</p><ul><li><code·class="inline">{ok,·{file,·FileName}}</code>·-·the·parameter·is·a·file·name·and·the·file·exists.</li><li><code·class="inline">{ok,·{config,·ConfigString}}</code>·-·the·parameter·is·a·configuration·string·and | 280 | specified·configuration·parameter·is·valid:</p><ul><li><code·class="inline">{ok,·{file,·FileName}}</code>·-·the·parameter·is·a·file·name·and·the·file·exists.</li><li><code·class="inline">{ok,·{config,·ConfigString}}</code>·-·the·parameter·is·a·configuration·string·and |
| 281 | it·is·correct.</li><li><code·class="inline">{error,·{nofile,·FileName}}</code>·-·there·is·no·file·with·the·specified·name·in | 281 | it·is·correct.</li><li><code·class="inline">{error,·{nofile,·FileName}}</code>·-·there·is·no·file·with·the·specified·name·in |
| 282 | the·current·directory.</li><li><code·class="inline">{error,·{wrong_config,·ConfigString}}</code>·-·the·configuration·string·is·wrong.</li></ul><p>The·function·<code·class="inline">Callback:read_config/1</code>·is·to·be·exported·from·the·callback·module | 282 | the·current·directory.</li><li><code·class="inline">{error,·{wrong_config,·ConfigString}}</code>·-·the·configuration·string·is·wrong.</li></ul><p>The·function·<code·class="inline">Callback:read_config/1</code>·is·to·be·exported·from·the·callback·module |
| 283 | to·read·configuration·data,·initially·before·the·tests·start,·or·as·a·result·of | 283 | to·read·configuration·data,·initially·before·the·tests·start,·or·as·a·result·of |
| 284 | data·being·reloaded·during·test·execution.·The·input·argument·is·the·same·as·for | 284 | data·being·reloaded·during·test·execution.·The·input·argument·is·the·same·as·for |
| 285 | function·<code·class="inline">check_parameter/1</code>.</p><p>The·return·value·is·to·be·either·of·the·following:</p><ul><li><code·class="inline">{ok,·Config}</code>·-·if·the·configuration·variables·are·read·successfully.</li><li><code·class="inline">{error,·{Error,·ErrorDetails}}</code>·-·if·the·callback·module·fails·to·proceed | 285 | function·<code·class="inline">check_parameter/1</code>.</p><p>The·return·value·is·to·be·either·of·the·following:</p><ul><li><code·class="inline">{ok,·Config}</code>·-·if·the·configuration·variables·are·read·successfully.</li><li><code·class="inline">{error,·{Error,·ErrorDetails}}</code>·-·if·the·callback·module·fails·to·proceed |
| 286 | with·the·specified·configuration·parameters.</li></ul><p><code·class="inline">Config</code>·is·the·proper·Erlang·key-value·list,·with·possible·key-value·sublists | 286 | with·the·specified·configuration·parameters.</li></ul><p><code·class="inline">Config</code>·is·the·proper·Erlang·key-value·list,·with·possible·key-value·sublists |
| 287 | as·values,·like·the·earlier·configuration·file·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 287 | as·values,·like·the·earlier·configuration·file·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="0368299667-1">[</span><span·class="p"·data-group-id="0368299667-2">{</span><span·class="ss">ftp_host</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0368299667-3">[</span><span·class="p"·data-group-id="0368299667-4">{</[·...·truncated·by·diffoscope;·len:·823,·SHA:·b3f7f67845025be03d482a339b1c09c0021248d00c6ba1888a3da20064e38f73·...·]-2">}</span><span·class="p">,</span><span·class="w"> |
| 288 | ·</span><span·class="p"·data-group-id=" | 288 | ·</span><span·class="p"·data-group-id="0368299667-7">{</span><span·class="ss">lm_directory</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"/test/loadmodules"</span><span·class="p"·data-group-id="0368299667-7">}</span><span·class="p"·data-group-id="0368299667-1">]</span></code></pre><h2·id="examples-of-configuration-data-handling"·class="section-heading"> |
| 289 | ··<a·href="#examples-of-configuration-data-handling"·class="hover-link"> | 289 | ··<a·href="#examples-of-configuration-data-handling"·class="hover-link"> |
| 290 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 290 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 291 | ··</a> | 291 | ··</a> |
| 292 | ··<span·class="text">Examples·of·Configuration·Data·Handling</span> | 292 | ··<span·class="text">Examples·of·Configuration·Data·Handling</span> |
| 293 | </h2> | 293 | </h2> |
| 294 | <p>A·configuration·file·for·using·the·FTP·client·to·access·files·on·a·remote·host | 294 | <p>A·configuration·file·for·using·the·FTP·client·to·access·files·on·a·remote·host |
| 295 | can·look·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 295 | can·look·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="2400710813-1">{</span><span·class="ss">ftp_host</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2400710813-2">[</span><span·class="p"·data-group-id="2400710813-3">{</span><span·class="ss">ftp</span><span·class="p">,</sp[·...·truncated·by·diffoscope;·len:·89,·SHA:·689fe7c2a1720b6104dd61c163a3e5f2445543ead0e2584991fa06e5a799c1b2·...·]-3">}</span><span·class="p">,</span><span·class="w"> |
| 296 | ············</span><span·class="p"·data-group-id=" | 296 | ············</span><span·class="p"·data-group-id="2400710813-4">{</span><span·class="ss">username</span><span·class="p">,</span><span·class="s">"tester"</span><span·class="p"·data-group-id="2400710813-4">}</span><span·class="p">,</span><span·class="w"> |
| 297 | ············</span><span·class="p"·data-group-id=" | 297 | ············</span><span·class="p"·data-group-id="2400710813-5">{</span><span·class="ss">password</span><span·class="p">,</span><span·class="s">"letmein"</span><span·class="p"·data-group-id="2400710813-5">}</span><span·class="p"·data-group-id="2400710813-2">]</span><span·class="p"·data-group-id=[·...·truncated·by·diffoscope;·len:·11,·SHA:·7a35c15874d66cceefa188f166e9703fb2dfd9d3c62744fa568ff12609097540·...·]-1">}</span><span·class="p">.</span><span·class="w"> |
| 298 | </span><span·class="p"·data-group-id=" | 298 | </span><span·class="p"·data-group-id="2400710813-6">{</span><span·class="ss">lm_directory</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"/test/loadmodules"</span><span·class="p"·data-group-id="2400710813-6">}</span><span·class="p">.</span></code></pre><p>The·XML·version·shown·earlier·can·also·be·used,·but·it·is·to·be·explicitly |
| 299 | specified·that·the·<code·class="inline">ct_config_xml</code>·callback·module·is·to·be·used·by | 299 | specified·that·the·<code·class="inline">ct_config_xml</code>·callback·module·is·to·be·used·by |
| 300 | <code·class="inline">Common·Test</code>.</p><p>The·following·is·an·example·of·how·to·assert·that·the·configuration·data·is | 300 | <code·class="inline">Common·Test</code>.</p><p>The·following·is·an·example·of·how·to·assert·that·the·configuration·data·is |
| 301 | available·and·can·be·used·for·an·FTP·session:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">init_per_testcase</span><span·class="p"·data-group-id=" | 301 | available·and·can·be·used·for·an·FTP·session:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">init_per_testcase</span><span·class="p"·data-group-id="8820790334-1">(</span><span·class="ss">ftptest</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Config</span><span·class="p"·data-group-id="8820790334-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 302 | ····</span><span·class="p"·data-group-id=" | 302 | ····</span><span·class="p"·data-group-id="8820790334-2">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="p">_</span><span·class="p"·data-group-id="8820790334-2">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">ct_ftp</span><span[·...·truncated·by·diffoscope;·len:·168,·SHA:·4595eabfb171f46f865117345efe0917cfccd060a486a139abd16f38003a7668·...·]-3">)</span><span·class="p">,</span><span·class="w"> |
| 303 | ····</span><span·class="n">Config</span><span·class="p">.</span><span·class="w"> | 303 | ····</span><span·class="n">Config</span><span·class="p">.</span><span·class="w"> |
| 304 | </span><span·class="nf">end_per_testcase</span><span·class="p"·data-group-id=" | 304 | </span><span·class="nf">end_per_testcase</span><span·class="p"·data-group-id="8820790334-4">(</span><span·class="ss">ftptest</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="n">Config</span><span·class="p"·data-group-id="8820790334-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 305 | ····</span><span·class="nc">ct_ftp</span><span·class="p">:</span><span·class="nf">close</span><span·class="p"·data-group-id=" | 305 | ····</span><span·class="nc">ct_ftp</span><span·class="p">:</span><span·class="nf">close</span><span·class="p"·data-group-id="8820790334-5">(</span><span·class="ss">ftp</span><span·class="p"·data-group-id="8820790334-5">)</span><span·class="p">.</span><span·class="w"> |
| 306 | </span><span·class="nf">ftptest</span><span·class="p"·data-group-id=" | 306 | </span><span·class="nf">ftptest</span><span·class="p"·data-group-id="8820790334-6">(</span><span·class="p"·data-group-id="8820790334-6">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 307 | ····</span><span·class="p"·data-group-id=" | 307 | ····</span><span·class="p"·data-group-id="8820790334-7">[</span><span·class="p"·data-group-id="8820790334-8">{</span><span·class="ss">require</span><span·class="p">,</span><span·class="ss">ftp</span><span·class="p">,</span><span·class="ss">ftp_host</span><span·class="p"·data-group-id="8820790334-8">}</span><span·class="p">,</span><span·class="w"> |
| 308 | ·····</span><span·class="p"·data-group-id=" | 308 | ·····</span><span·class="p"·data-group-id="8820790334-9">{</span><span·class="ss">require</span><span·class="p">,</span><span·class="ss">lm_directory</span><span·class="p"·data-group-id="8820790334-9">}</span><span·class="p"·data-group-id="8820790334-7">]</span><span·class="p">.</span><span·class="w"> |
| 309 | </span><span·class="nf">ftptest</span><span·class="p"·data-group-id=" | 309 | </span><span·class="nf">ftptest</span><span·class="p"·data-group-id="8820790334-10">(</span><span·class="n">Config</span><span·class="p"·data-group-id="8820790334-10">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 310 | ····</span><span·class="n">Remote</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">join</span><span·class="p"·data-group-id=" | 310 | ····</span><span·class="n">Remote</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">join</span><span·class="p"·data-group-id="8820790334-11">(</span><span·class="nc">ct</span><span·class="p">:</span><span·class="nf">get_config</span><span·class="p"·data-group-id="8820790334-12">(</span><span·class="ss">lm_directory</span><span·class="p"·data-group-id="8820790334-12">)</span><span[·...·truncated·by·diffoscope;·len:·127,·SHA:·4b7e590634563a7b8047c71e48f8d947fa6c06a399c07d39dc0c78caebba4159·...·]-11">)</span><span·class="p">,</span><span·class="w"> |
| 311 | ····</span><span·class="n">Local</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">join</span><span·class="p"·data-group-id=" | 311 | ····</span><span·class="n">Local</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">join</span><span·class="p"·data-group-id="8820790334-13">(</span><span·class="nc">proplists</span><span·class="p">:</span><span·class="nf">get_value</span><span·class="p"·data-group-id="8820790334-14">(</span><span·class="ss">priv_dir</span><span·class="p">,</span><span·class="n">Config</span><spa[·...·truncated·by·diffoscope;·len:·184,·SHA:·dbc94896ca143e7bd42abf244feccc59f24043b54e6fc62586b93866564183ca·...·]-13">)</span><span·class="p">,</span><span·class="w"> |
| 312 | ····</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">ct_ftp</span><span·class="p">:</span><span·class="nf">recv</span><span·class="p"·data-group-id=" | 312 | ····</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">ct_ftp</span><span·class="p">:</span><span·class="nf">recv</span><span·class="p"·data-group-id="8820790334-15">(</span><span·class="ss">ftp</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Remote</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Local</span><span·class="p"·data-group-id="8820790334-15">)</span><span·class="p">,</span><span·class="w"> |
| 313 | ····</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span></code></pre><p>The·following·is·an·example·of·how·the·functions·in·the·previous·example·can·be | 313 | ····</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span></code></pre><p>The·following·is·an·example·of·how·the·functions·in·the·previous·example·can·be |
| 314 | rewritten·if·it·is·necessary·to·open·multiple·connections·to·the·FTP·server:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">init_per_testcase</span><span·class="p"·data-group-id=" | 314 | rewritten·if·it·is·necessary·to·open·multiple·connections·to·the·FTP·server:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">init_per_testcase</span><span·class="p"·data-group-id="2079129037-1">(</span><span·class="ss">ftptest</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Config</span><span·class="p"·data-group-id="2079129037-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 315 | ····</span><span·class="p"·data-group-id=" | 315 | ····</span><span·class="p"·data-group-id="2079129037-2">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="n">Handle1</span><span·class="p"·data-group-id="2079129037-2">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">ct_ftp</span[·...·truncated·by·diffoscope;·len:·179,·SHA:·f3ae4acf204421cab90b93f3037af91eeb40d7e4fe4eadbb40391f76a9390aa5·...·]-3">)</span><span·class="p">,</span><span·class="w"> |
| 316 | ····</span><span·class="p"·data-group-id=" | 316 | ····</span><span·class="p"·data-group-id="2079129037-4">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="n">Handle2</span><span·class="p"·data-group-id="2079129037-4">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">ct_ftp</span[·...·truncated·by·diffoscope;·len:·179,·SHA:·038c87e9cd30703404361aa5ad41f7b3a7463a419fafb3d3f3894c5c6dde9500·...·]-5">)</span><span·class="p">,</span><span·class="w"> |
| 317 | ····</span><span·class="p"·data-group-id=" | 317 | ····</span><span·class="p"·data-group-id="2079129037-6">[</span><span·class="p"·data-group-id="2079129037-7">{</span><span·class="ss">ftp_handles</span><span·class="p">,</span><span·class="p"·data-group-id="2079129037-8">[</span><span·class="n">Handle1</span><span·class="p">,</span><span·class="n"[·...·truncated·by·diffoscope;·len:·263,·SHA:·1da93bc43809b0803d9472bc255c2e53add097c3341a5759762817fe3e94eab9·...·]-6">]</span><span·class="p">.</span><span·class="w"> |
| 318 | </span><span·class="nf">end_per_testcase</span><span·class="p"·data-group-id=" | 318 | </span><span·class="nf">end_per_testcase</span><span·class="p"·data-group-id="2079129037-9">(</span><span·class="ss">ftptest</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Config</span><span·class="p"·data-group-id="2079129037-9">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 319 | ····</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">foreach</span><span·class="p"·data-group-id=" | 319 | ····</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">foreach</span><span·class="p"·data-group-id="2079129037-10">(</span><span·class="nf">fun</span><span·class="p"·data-group-id="2079129037-11">(</span><span·class="n">Handle</span><span·class="p"·data-group-id="2079129037-11">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·[·...·truncated·by·diffoscope;·len:·214,·SHA:·f9f94c0c957fd716baeb8109d34d76dbbdd94b2704c7ac835560db78a2b6106a·...·]-12">)</span><span·class="w">·</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> |
| 320 | ··················</span><span·class="nc">proplists</span><span·class="p">:</span><span·class="nf">get_value</span><span·class="p"·data-group-id=" | 320 | ··················</span><span·class="nc">proplists</span><span·class="p">:</span><span·class="nf">get_value</span><span·class="p"·data-group-id="2079129037-13">(</span><span·class="ss">ftp_handles</span><span·class="p">,</span><span·class="n">Config</span><span·class="p"·data-group-id="2079129037-13">)</span><span·class="p"·data-group-id="2079129037-10">)</span><span·class="p">.</span><span·class="w"> |
| 321 | </span><span·class="nf">ftptest</span><span·class="p"·data-group-id=" | 321 | </span><span·class="nf">ftptest</span><span·class="p"·data-group-id="2079129037-14">(</span><span·class="p"·data-group-id="2079129037-14">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 322 | ····</span><span·class="p"·data-group-id=" | 322 | ····</span><span·class="p"·data-group-id="2079129037-15">[</span><span·class="p"·data-group-id="2079129037-16">{</span><span·class="ss">require</span><span·class="p">,</span><span·class="ss">ftp_host</span><span·class="p"·data-group-id="2079129037-16">}</span><span·class="p">,</span><span·class="w"> |
| 323 | ·····</span><span·class="p"·data-group-id=" | 323 | ·····</span><span·class="p"·data-group-id="2079129037-17">{</span><span·class="ss">require</span><span·class="p">,</span><span·class="ss">lm_directory</span><span·class="p"·data-group-id="2079129037-17">}</span><span·class="p"·data-group-id="2079129037-15">]</span><span·class="p">.</span><span·class="w"> |
| 324 | </span><span·class="nf">ftptest</span><span·class="p"·data-group-id=" | 324 | </span><span·class="nf">ftptest</span><span·class="p"·data-group-id="2079129037-18">(</span><span·class="n">Config</span><span·class="p"·data-group-id="2079129037-18">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 325 | ····</span><span·class="n">Remote</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">join</span><span·class="p"·data-group-id=" | 325 | ····</span><span·class="n">Remote</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">join</span><span·class="p"·data-group-id="2079129037-19">(</span><span·class="nc">ct</span><span·class="p">:</span><span·class="nf">get_config</span><span·class="p"·data-group-id="2079129037-20">(</span><span·class="ss">lm_directory</span><span·class="p"·data-group-id="2079129037-20">)</span><span[·...·truncated·by·diffoscope;·len:·127,·SHA:·90cd4af0c93adf30ffd629a28aadbce2179b83d9f626b4479f931a6b852c6a3a·...·]-19">)</span><span·class="p">,</span><span·class="w"> |
| 326 | ····</span><span·class="n">Local</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">join</span><span·class="p"·data-group-id=" | 326 | ····</span><span·class="n">Local</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">join</span><span·class="p"·data-group-id="2079129037-21">(</span><span·class="nc">proplists</span><span·class="p">:</span><span·class="nf">get_value</span><span·class="p"·data-group-id="2079129037-22">(</span><span·class="ss">priv_dir</span><span·class="p">,</span><span·class="n">Config</span><spa[·...·truncated·by·diffoscope;·len:·184,·SHA:·ffe898e5f93652c0857485bd931de34eb0ccb4a2636e258080aafb85a0711a24·...·]-21">)</span><span·class="p">,</span><span·class="w"> |
| 327 | ····</span><span·class="p"·data-group-id=" | 327 | ····</span><span·class="p"·data-group-id="2079129037-23">[</span><span·class="n">Handle</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="n">MoreHandles</span><span·class="p"·data-group-id="2079129037-23">]</span><span·class="w">·</span><span·class="o">=</s[·...·truncated·by·diffoscope;·len:·301,·SHA:·26749a59b4a68c41e8e755dcfc1a2a66532c5782f27ef8809dedadb414cc2c78·...·]-24">)</span><span·class="p">,</span><span·class="w"> |
| 328 | ····</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">ct_ftp</span><span·class="p">:</span><span·class="nf">recv</span><span·class="p"·data-group-id=" | 328 | ····</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">ct_ftp</span><span·class="p">:</span><span·class="nf">recv</span><span·class="p"·data-group-id="2079129037-25">(</span><span·class="n">Handle</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Remote</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Local</span><span·class="p"·data-group-id="2079129037-25">)</span><span·class="p">,</span><span·class="w"> |
| 329 | ····</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span></code></pre><h2·id="example-of-user-specific-configuration-handler"·class="section-heading"> | 329 | ····</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span></code></pre><h2·id="example-of-user-specific-configuration-handler"·class="section-heading"> |
| 330 | ··<a·href="#example-of-user-specific-configuration-handler"·class="hover-link"> | 330 | ··<a·href="#example-of-user-specific-configuration-handler"·class="hover-link"> |
| 331 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 331 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 332 | ··</a> | 332 | ··</a> |
| 333 | ··<span·class="text">Example·of·User-Specific·Configuration·Handler</span> | 333 | ··<span·class="text">Example·of·User-Specific·Configuration·Handler</span> |
| 334 | </h2> | 334 | </h2> |
| 335 | <p>A·simple·configuration·handling·driver,·asking·an·external·server·for | 335 | <p>A·simple·configuration·handling·driver,·asking·an·external·server·for |
| 336 | configuration·data,·can·be·implemented·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 336 | configuration·data,·can·be·implemented·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="8351647067-1">(</span><span·class="ss">config_driver</span><span·class="p"·data-group-id="8351647067-1">)</span><span·class="p">.</span><span·class="w"> |
| 337 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 337 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="8351647067-2">(</span><span·class="p"·data-group-id="8351647067-3">[</span><span·class="ss">read_config</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">check_parameter</span><span·clas[·...·truncated·by·diffoscope;·len:·133,·SHA:·e4405bf45e35a20179025eb8794a6e114b271b1eb0849238947325d92dd3df2e·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 338 | </span><span·class="nf">read_config</span><span·class="p"·data-group-id=" | 338 | </span><span·class="nf">read_config</span><span·class="p"·data-group-id="8351647067-4">(</span><span·class="n">ServerName</span><span·class="p"·data-group-id="8351647067-4">)</span><span·class="p">-></span><span·class="w"> |
| 339 | ····</span><span·class="n">ServerModule</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">list_to_atom</span><span·class="p"·data-group-id=" | 339 | ····</span><span·class="n">ServerModule</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">list_to_atom</span><span·class="p"·data-group-id="8351647067-5">(</span><span·class="n">ServerName</span><span·class="p"·data-group-id="8351647067-5">)</span><span·class="p">,</span><span·class="w"> |
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| 197 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 197 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 198 | ··</a> | 198 | ··</a> |
| 199 | ··<span·class="text">General·Config</span> | 199 | ··<span·class="text">General·Config</span> |
| 200 | </h3> | 200 | </h3> |
| 201 | <p>Here·follows·the·general·configuration·terms·that·are·allowed·in·a·cover | 201 | <p>Here·follows·the·general·configuration·terms·that·are·allowed·in·a·cover |
| 202 | specification·file:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%%·List·of·Nodes·on·which·cover·will·be·active·during·test.</span><span·class="w"> | 202 | specification·file:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%%·List·of·Nodes·on·which·cover·will·be·active·during·test.</span><span·class="w"> |
| 203 | </span><span·class="c1">%%·Nodes·=·[atom()]</span><span·class="w"> | 203 | </span><span·class="c1">%%·Nodes·=·[atom()]</span><span·class="w"> |
| 204 | </span><span·class="p"·data-group-id=" | 204 | </span><span·class="p"·data-group-id="1970070632-1">{</span><span·class="nb">nodes</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Nodes</span><span·class="p"·data-group-id="1970070632-1">}</span><span·class="p">.</span><span·class="w"> |
| 205 | </span><span·class="c1">%%·Files·with·previously·exported·cover·data·to·include·in·analysis.</span><span·class="w"> | 205 | </span><span·class="c1">%%·Files·with·previously·exported·cover·data·to·include·in·analysis.</span><span·class="w"> |
| 206 | </span><span·class="c1">%%·CoverDataFiles·=·[string()]</span><span·class="w"> | 206 | </span><span·class="c1">%%·CoverDataFiles·=·[string()]</span><span·class="w"> |
| 207 | </span><span·class="p"·data-group-id=" | 207 | </span><span·class="p"·data-group-id="1970070632-2">{</span><span·class="ss">import</span><span·class="p">,</span><span·class="w">·</span><span·class="n">CoverDataFiles</span><span·class="p"·data-group-id="1970070632-2">}</span><span·class="p">.</span><span·class="w"> |
| 208 | </span><span·class="c1">%%·Cover·data·file·to·export·from·this·session.</span><span·class="w"> | 208 | </span><span·class="c1">%%·Cover·data·file·to·export·from·this·session.</span><span·class="w"> |
| 209 | </span><span·class="c1">%%·CoverDataFile·=·string()</span><span·class="w"> | 209 | </span><span·class="c1">%%·CoverDataFile·=·string()</span><span·class="w"> |
| 210 | </span><span·class="p"·data-group-id=" | 210 | </span><span·class="p"·data-group-id="1970070632-3">{</span><span·class="ss">export</span><span·class="p">,</span><span·class="w">·</span><span·class="n">CoverDataFile</span><span·class="p"·data-group-id="1970070632-3">}</span><span·class="p">.</span><span·class="w"> |
| 211 | </span><span·class="c1">%%·Cover·analysis·level.</span><span·class="w"> | 211 | </span><span·class="c1">%%·Cover·analysis·level.</span><span·class="w"> |
| 212 | </span><span·class="c1">%%·Level·=·details·|·overview</span><span·class="w"> | 212 | </span><span·class="c1">%%·Level·=·details·|·overview</span><span·class="w"> |
| 213 | </span><span·class="p"·data-group-id=" | 213 | </span><span·class="p"·data-group-id="1970070632-4">{</span><span·class="ss">level</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Level</span><span·class="p"·data-group-id="1970070632-4">}</span><span·class="p">.</span><span·class="w"> |
| 214 | </span><span·class="c1">%%·Directories·to·include·in·cover.</span><span·class="w"> | 214 | </span><span·class="c1">%%·Directories·to·include·in·cover.</span><span·class="w"> |
| 215 | </span><span·class="c1">%%·Dirs·=·[string()]</span><span·class="w"> | 215 | </span><span·class="c1">%%·Dirs·=·[string()]</span><span·class="w"> |
| 216 | </span><span·class="p"·data-group-id=" | 216 | </span><span·class="p"·data-group-id="1970070632-5">{</span><span·class="ss">incl_dirs</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Dirs</span><span·class="p"·data-group-id="1970070632-5">}</span><span·class="p">.</span><span·class="w"> |
| 217 | </span><span·class="c1">%%·Directories,·including·subdirectories,·to·include.</span><span·class="w"> | 217 | </span><span·class="c1">%%·Directories,·including·subdirectories,·to·include.</span><span·class="w"> |
| 218 | </span><span·class="p"·data-group-id=" | 218 | </span><span·class="p"·data-group-id="1970070632-6">{</span><span·class="ss">incl_dirs_r</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Dirs</span><span·class="p"·data-group-id="1970070632-6">}</span><span·class="p">.</span><span·class="w"> |
| 219 | </span><span·class="c1">%%·Specific·modules·to·include·in·cover.</span><span·class="w"> | 219 | </span><span·class="c1">%%·Specific·modules·to·include·in·cover.</span><span·class="w"> |
| 220 | </span><span·class="c1">%%·Mods·=·[atom()]</span><span·class="w"> | 220 | </span><span·class="c1">%%·Mods·=·[atom()]</span><span·class="w"> |
| 221 | </span><span·class="p"·data-group-id=" | 221 | </span><span·class="p"·data-group-id="1970070632-7">{</span><span·class="ss">incl_mods</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Mods</span><span·class="p"·data-group-id="1970070632-7">}</span><span·class="p">.</span><span·class="w"> |
| 222 | </span><span·class="c1">%%·Directories·to·exclude·in·cover.</span><span·class="w"> | 222 | </span><span·class="c1">%%·Directories·to·exclude·in·cover.</span><span·class="w"> |
| 223 | </span><span·class="p"·data-group-id=" | 223 | </span><span·class="p"·data-group-id="1970070632-8">{</span><span·class="ss">excl_dirs</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Dirs</span><span·class="p"·data-group-id="1970070632-8">}</span><span·class="p">.</span><span·class="w"> |
| 224 | </span><span·class="c1">%%·Directories,·including·subdirectories,·to·exclude.</span><span·class="w"> | 224 | </span><span·class="c1">%%·Directories,·including·subdirectories,·to·exclude.</span><span·class="w"> |
| 225 | </span><span·class="p"·data-group-id=" | 225 | </span><span·class="p"·data-group-id="1970070632-9">{</span><span·class="ss">excl_dirs_r</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Dirs</span><span·class="p"·data-group-id="1970070632-9">}</span><span·class="p">.</span><span·class="w"> |
| 226 | </span><span·class="c1">%%·Specific·modules·to·exclude·in·cover.</span><span·class="w"> | 226 | </span><span·class="c1">%%·Specific·modules·to·exclude·in·cover.</span><span·class="w"> |
| 227 | </span><span·class="p"·data-group-id=" | 227 | </span><span·class="p"·data-group-id="1970070632-10">{</span><span·class="ss">excl_mods</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Mods</span><span·class="p"·data-group-id="1970070632-10">}</span><span·class="p">.</span><span·class="w"> |
| 228 | </span><span·class="c1">%%·Cross·cover·compilation</span><span·class="w"> | 228 | </span><span·class="c1">%%·Cross·cover·compilation</span><span·class="w"> |
| 229 | </span><span·class="c1">%%·Tag·=·atom(),·an·identifier·for·a·test·run</span><span·class="w"> | 229 | </span><span·class="c1">%%·Tag·=·atom(),·an·identifier·for·a·test·run</span><span·class="w"> |
| 230 | </span><span·class="c1">%%·Mod·=·[atom()],·modules·to·compile·for·accumulated·analysis</span><span·class="w"> | 230 | </span><span·class="c1">%%·Mod·=·[atom()],·modules·to·compile·for·accumulated·analysis</span><span·class="w"> |
| 231 | </span><span·class="p"·data-group-id=" | 231 | </span><span·class="p"·data-group-id="1970070632-11">{</span><span·class="ss">cross</span><span·class="p">,</span><span·class="p"·data-group-id="1970070632-12">[</span><span·class="p"·data-group-id="1970070632-13">{</span><span·class="n">Tag</span><span·class="p">,</span><span·class="n">Mods</[·...·truncated·by·diffoscope;·len:·154,·SHA:·e2f2e09c397244963b3302893c40a854751916806f784330d79f5c02656133ef·...·]-11">}</span><span·class="p">.</span></code></pre><p>The·terms·<code·class="inline">incl_dirs_r</code>·and·<code·class="inline">excl_dirs_r</code>·tell·<code·class="inline">Common·Test</code>·to·search·the |
| 232 | specified·directories·recursively·and·include·or·exclude·any·module·found·during | 232 | specified·directories·recursively·and·include·or·exclude·any·module·found·during |
| 233 | the·search.·The·terms·<code·class="inline">incl_dirs</code>·and·<code·class="inline">excl_dirs</code>·result·in·a·non-recursive | 233 | the·search.·The·terms·<code·class="inline">incl_dirs</code>·and·<code·class="inline">excl_dirs</code>·result·in·a·non-recursive |
| 234 | search·for·modules·(that·is,·only·modules·found·in·the·specified·directories·are | 234 | search·for·modules·(that·is,·only·modules·found·in·the·specified·directories·are |
| 235 | included·or·excluded).</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>Directories·containing·Erlang·modules·to·be·included·in·a·code·coverage·test | 235 | included·or·excluded).</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>Directories·containing·Erlang·modules·to·be·included·in·a·code·coverage·test |
| 236 | must·exist·in·the·code·server·path.·Otherwise,·the·Cover·tool·fails·to | 236 | must·exist·in·the·code·server·path.·Otherwise,·the·Cover·tool·fails·to |
| 237 | recompile·the·modules.·It·is·not·sufficient·to·specify·these·directories·in | 237 | recompile·the·modules.·It·is·not·sufficient·to·specify·these·directories·in |
| 238 | the·cover·specification·file·for·<code·class="inline">Common·Test</code>.</p></section><h3·id="otp-application-config"·class="section-heading"> | 238 | the·cover·specification·file·for·<code·class="inline">Common·Test</code>.</p></section><h3·id="otp-application-config"·class="section-heading"> |
| 239 | ··<a·href="#otp-application-config"·class="hover-link"> | 239 | ··<a·href="#otp-application-config"·class="hover-link"> |
| 240 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 240 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 241 | ··</a> | 241 | ··</a> |
| 242 | ··<span·class="text">OTP·application·Config</span> | 242 | ··<span·class="text">OTP·application·Config</span> |
| 243 | </h3> | 243 | </h3> |
| 244 | <p>When·using·a·cover·specification·in·the·testing·of·an·OTP·application·itself, | 244 | <p>When·using·a·cover·specification·in·the·testing·of·an·OTP·application·itself, |
| 245 | there·is·a·special·incl_app·directive·that·includes·the·applications·modules·for | 245 | there·is·a·special·incl_app·directive·that·includes·the·applications·modules·for |
| 246 | the·cover·compilation.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 246 | the·cover·compilation.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="4620110090-1">{</span><span·class="ss">incl_app</span><span·class="p">,</span><span·class="w">·</span><span·class="n">AppName</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Cover</span><span·class="w">·</span><span·class="p">:</span>[·...·truncated·by·diffoscope;·len:·224,·SHA:·89d6f5c5e5eaae30a44bd2cff95fd14aa83db1edd041db96391e3ae332347fc5·...·]-1">}</span><span·class="p">.</span></code></pre><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>If·you·desire·to·also·use·some·other·general·cover·configuration·together·with |
| 247 | this·option·you·should·insert·the·AppName·in·between·the·option·and·its·value | 247 | this·option·you·should·insert·the·AppName·in·between·the·option·and·its·value |
| 248 | creating·a·three·tuple.</p></section><p><a·href=""·id="cross_cover"></a></p><h2·id="cross-cover-analysis"·class="section-heading"> | 248 | creating·a·three·tuple.</p></section><p><a·href=""·id="cross_cover"></a></p><h2·id="cross-cover-analysis"·class="section-heading"> |
| 249 | ··<a·href="#cross-cover-analysis"·class="hover-link"> | 249 | ··<a·href="#cross-cover-analysis"·class="hover-link"> |
| 250 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 250 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 251 | ··</a> | 251 | ··</a> |
| 252 | ··<span·class="text">Cross·Cover·Analysis</span> | 252 | ··<span·class="text">Cross·Cover·Analysis</span> |
| 253 | </h2> | 253 | </h2> |
| Offset 276, 15 lines modified | Offset 276, 15 lines modified | ||
| 276 | ··{incl_mods,[m1]}.</code></pre><p>This·gives·an·entry·for·<code·class="inline">m1</code>·also·in·the·cover·log·for·test·run·<code·class="inline">s2</code>.·The | 276 | ··{incl_mods,[m1]}.</code></pre><p>This·gives·an·entry·for·<code·class="inline">m1</code>·also·in·the·cover·log·for·test·run·<code·class="inline">s2</code>.·The |
| 277 | problem·is·that·this·only·reflects·the·coverage·by·<code·class="inline">s2</code>·tests,·not·the | 277 | problem·is·that·this·only·reflects·the·coverage·by·<code·class="inline">s2</code>·tests,·not·the |
| 278 | accumulated·result·over·<code·class="inline">s1</code>·and·<code·class="inline">s2</code>.·This·is·where·the·cross·cover·mechanism | 278 | accumulated·result·over·<code·class="inline">s1</code>·and·<code·class="inline">s2</code>.·This·is·where·the·cross·cover·mechanism |
| 279 | comes·in·handy.</p><p>If·instead·the·cover·specification·for·<code·class="inline">s2</code>·is·like·the·following:</p><pre><code·class="text">s2.cover: | 279 | comes·in·handy.</p><p>If·instead·the·cover·specification·for·<code·class="inline">s2</code>·is·like·the·following:</p><pre><code·class="text">s2.cover: |
| 280 | ··{cross,[{s1,[m1]}]}.</code></pre><p>Then·<code·class="inline">m1</code>·is·cover·compiled·in·test·run·<code·class="inline">s2</code>,·but·not·shown·in·the·coverage·log. | 280 | ··{cross,[{s1,[m1]}]}.</code></pre><p>Then·<code·class="inline">m1</code>·is·cover·compiled·in·test·run·<code·class="inline">s2</code>,·but·not·shown·in·the·coverage·log. |
| 281 | Instead,·if·<a·href="ct_cover.html#cross_cover_analyse/2"><code·class="inline">ct_cover:cross_cover_analyse/2</code></a>·is·called·after·both·<code·class="inline">s1</code>·and·<code·class="inline">s2</code> | 281 | Instead,·if·<a·href="ct_cover.html#cross_cover_analyse/2"><code·class="inline">ct_cover:cross_cover_analyse/2</code></a>·is·called·after·both·<code·class="inline">s1</code>·and·<code·class="inline">s2</code> |
| 282 | test·runs·are·completed,·the·accumulated·result·for·<code·class="inline">m1</code>·is·available·in·the | 282 | test·runs·are·completed,·the·accumulated·result·for·<code·class="inline">m1</code>·is·available·in·the |
| 283 | cross·cover·log·for·test·run·<code·class="inline">s1</code>.</p><p>The·call·to·the·analyze·function·must·be·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">ct_cover</span><span·class="p">:</span><span·class="nf">cross_cover_analyse</span><span·class="p"·data-group-id=" | 283 | cross·cover·log·for·test·run·<code·class="inline">s1</code>.</p><p>The·call·to·the·analyze·function·must·be·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">ct_cover</span><span·class="p">:</span><span·class="nf">cross_cover_analyse</span><span·class="p"·data-group-id="7353656837-1">(</span><span·class="n">Level</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="7353656837-2">[</span><span·class="p"·data-group-id="7353656837-3">{</span><span·class="ss">s1</span><span·class="p">,</span><s[·...·truncated·by·diffoscope;·len:·387,·SHA:·96a1a54bdb889b0d8b18994624aa0a67545ca35fb671338807cece3d7f1c8908·...·]-1">)</span><span·class="p">.</span></code></pre><p>Here,·<code·class="inline">S1LogDir</code>·and·<code·class="inline">S2LogDir</code>·are·the·directories·named·<code·class="inline"><TestName>.logs</code>·for |
| 284 | each·test·respectively.</p><p>Notice·the·tags·<code·class="inline">s1</code>·and·<code·class="inline">s2</code>,·which·are·used·in·the·cover·specification·file | 284 | each·test·respectively.</p><p>Notice·the·tags·<code·class="inline">s1</code>·and·<code·class="inline">s2</code>,·which·are·used·in·the·cover·specification·file |
| 285 | and·in·the·call·to·<a·href="ct_cover.html#cross_cover_analyse/2"><code·class="inline">ct_cover:cross_cover_analyse/2</code></a>.·The·purpose·of·these·is | 285 | and·in·the·call·to·<a·href="ct_cover.html#cross_cover_analyse/2"><code·class="inline">ct_cover:cross_cover_analyse/2</code></a>.·The·purpose·of·these·is |
| 286 | only·to·map·the·modules·specified·in·the·cover·specification·to·the·log | 286 | only·to·map·the·modules·specified·in·the·cover·specification·to·the·log |
| 287 | directory·specified·in·the·call·to·the·analyze·function.·The·tag·name·has·no | 287 | directory·specified·in·the·call·to·the·analyze·function.·The·tag·name·has·no |
| 288 | meaning·beyond·this.</p><h2·id="logging"·class="section-heading"> | 288 | meaning·beyond·this.</p><h2·id="logging"·class="section-heading"> |
| 289 | ··<a·href="#logging"·class="hover-link"> | 289 | ··<a·href="#logging"·class="hover-link"> |
| 290 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 290 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 349, 15 lines modified | Offset 349, 15 lines modified | ||
| 349 | ······<p·class="built-using"> | 349 | ······<p·class="built-using"> |
| 350 | ········Built·using | 350 | ········Built·using |
| 351 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 351 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 352 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 352 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 353 | ······</p> | 353 | ······</p> |
| 354 | <p>Copyright·©·1996-202 | 354 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 355 | ····</footer> | 355 | ····</footer> |
| 356 | ··</div> | 356 | ··</div> |
| 357 | </main> | 357 | </main> |
| 358 | </div> | 358 | </div> |
| 359 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 359 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 360 | ··<script> | 360 | ··<script> |
| 361 | ··let·initialized·=·false; | 361 | ··let·initialized·=·false; |
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| 1916 | ························Opt·::·element·|·all, | 1916 | ························Opt·::·element·|·all, |
| 1917 | ························ValueOrElement·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>()·|·Default.</pre> | 1917 | ························ValueOrElement·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>()·|·Default.</pre> |
| 1918 | ······</div> | 1918 | ······</div> |
| 1919 | <p>Reads·configuration·data·values.</p><p>Returns·the·matching·values·or·configuration·elements,·given·a·configuration | 1919 | <p>Reads·configuration·data·values.</p><p>Returns·the·matching·values·or·configuration·elements,·given·a·configuration |
| 1920 | variable·key·or·its·associated·name·(if·one·has·been·specified·with | 1920 | variable·key·or·its·associated·name·(if·one·has·been·specified·with |
| 1921 | <a·href="#require/2"><code·class="inline">ct:require/2</code></a>·or·a·<code·class="inline">require</code>·statement).</p><p><em>Example:</em></p><p>Given·the·following·configuration·file:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="9622034140-1">{</span><span·class="ss">unix</span><span·class="p">,</span><span·class="p"·data-group-id="9622034140-2">[</span><span·class="p"·data-group-id="9622034140-3">{</span><span·class="ss">telnet</span><span·class="p">,</span><span·class="n">IpAddr</span><span·class="p"·data-group-id="9622034140-3">}</span><span·class="p">,</span><span·class="w"> | ||
| 1922 | ·······</span><span·class="p"·data-group-id="9622034140-4">{</span><span·class="ss">user</span><span·class="p">,</span><span·class="p"·data-group-id="9622034140-5">[</span><span·class="p"·data-group-id="9622034140-6">{</span><span·class="ss">username</span><span·class="p">,</span><span·class="n">Username</span><span·class="p"·data-group-id="9622034140-6">}</span><span·class="p">,</span><span·class="w"> | ||
| 1923 | ··············</span><span·class="p"·data-group-id="9622034140-7">{</span><span·class="ss">password</span><span·class="p">,</span><span·class="n">Password</span><span·class="p"·data-group-id="9622034140-7">}</span><span·class="p"·data-group-id="9622034140-5">]</span><span·class="p"·data-group-id="9622034140-4">}</span><span·class="p"·data-group-id="9622034140-2">]</span><span·class="p"·data-group-id="9622034140-1">}</span><span·class="p">.</span></code></pre><p>Then:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">ct</span><span·class="p">:</span><span·class="nf">get_config</span><span·class="p"·data-group-id="5465099705-1">(</span><span·class="ss">unix</span><span·class="p">,</span><span·class="n">Default</span><span·class="p"·data-group-id="5465099705-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="p"·data-group-id="5465099705-2">[</span><span·class="p"·data-group-id="5465099705-3">{</span><span·class="ss">telnet</span><span·class="p">,</span><span·class="n">IpAddr</span><span·class="p"·data-group-id="5465099705-3">}</span><span·class="p">,</span><span·class="w"> | ||
| 1924 | · | 1921 | <a·href="#require/2"><code·class="inline">ct:require/2</code></a>·or·a·<code·class="inline">require</code>·statement).</p><p><em>Example:</em></p><p>Given·the·following·configuration·file:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·[·...·truncated·by·diffoscope;·len:·348,·SHA:·55edd3206d7f2839a49827dfd501f3d6f65d6c540ae6ca1cf597b2c702c8c1ed·...·]</span><span·class="w"> |
| 1922 | ·······</span><span·class="p"·data-group-id="9482070174-4">{</span><span·class="ss">user</span><span·class="p">,</span><span·class="p"·data-group-id="9482070174-5">[</span><span·class="p"·data-group-id="9482070174-6">{</span><span·class="ss">username</span><span·class="p">,</span><span·class="n">Username</span><span·class="p"·data-group-id="9482070174-6">}</span><span·class="p">,</span><span·class="w"> | ||
| 1923 | ··············</span><span·class="p"·data-group-id="9482070174-7">{</span><span·class="ss">password</span><span·class="p">,</span><span·class="n">Password</span><span·class="p"·data-group-id="9482070174-7">}</span><span·class="p"·data-group-id="9482070174-5">]</span><span·class="p"·data-group-id="9482070174-4">}</span><span·class="p"·data-group-id="9482070174-2">]</span><span·class="p"·data-group-id="9482070174-1">}</span><span·class="p">.</span></code></pre><p>Then:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">ct</span><span·class="p">:</span><span·class="nf">get_config</span><span·class="p"·data-group-id="8037817858-1">(</span><span·class="ss">unix</span><span·class="p">,</span><span·class="n">Default</span><span·class="p"·data-group-id="8037817858-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="p"·data-group-id="8037817858-2">[</span><span·class="p"·data-group-id="8037817858-3">{</span><span·class="ss">telnet</span><span·class="p">,</span><span·class="n">IpAddr</span><span·class="p"·data-group-id="8037817858-3">}</span><span·class="p">,</span><span·class="w"> | ||
| 1924 | ·</span><span·class="p"·data-group-id="8037817858-4">{</span><span·class="ss">user</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8037817858-5">[</span><span·class="p"·data-group-id="8037817858-6">{</span><span·class="ss">username</span><span·class="p">,</span><span·class="n">Username</span><span·class="p"·data-group-id="8037817858-6">}</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8037817858-7">{</span><span·class="ss">password</span><span·class="p">,</span><span·class="n">Password</span><span·class="p"·data-group-id="8037817858-7">}</span><span·class="p"·data-group-id="8037817858-5">]</span><span·class="p"·data-group-id="8037817858-4">}</span><span·class="p"·data-group-id="8037817858-2">]</span><span·class="w"> | ||
| 1925 | </span><span·class="nc">ct</span><span·class="p">:</span><span·class="nf">get_config</span><span·class="p"·data-group-id=" | 1925 | </span><span·class="nc">ct</span><span·class="p">:</span><span·class="nf">get_config</span><span·class="p"·data-group-id="8037817858-8">(</span><span·class="p"·data-group-id="8037817858-9">{</span><span·class="ss">unix</span><span·class="p">,</span><span·class="ss">telnet</span><span·class="p"·data-group-id="8037817858-9">}</span><span·class="p">,</span><span·class="n">Defaul[·...·truncated·by·diffoscope;·len:·49,·SHA:·67d6b5508975161d94db9231c858810b9f0b0cbe7c53f4a858c9cf49c092f96b·...·]-8">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">IpAddr</span><span·class="w"> |
| 1926 | </span><span·class="nc">ct</span><span·class="p">:</span><span·class="nf">get_config</span><span·class="p"·data-group-id=" | 1926 | </span><span·class="nc">ct</span><span·class="p">:</span><span·class="nf">get_config</span><span·class="p"·data-group-id="8037817858-10">(</span><span·class="p"·data-group-id="8037817858-11">{</span><span·class="ss">unix</span><span·class="p">,</span><span·class="ss">user</span><span·class="p">,</span><span·class="ss">username</span><span·class="p"·data-group-id="8037817858-1[·...·truncated·by·diffoscope;·len:·106,·SHA:·278b8cf462906cd5827478b32559291fca5e3361aa3f3932256cb83de0642acc·...·]-10">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">Username</span><span·class="w"> |
| 1927 | </span><span·class="nc">ct</span><span·class="p">:</span><span·class="nf">get_config</span><span·class="p"·data-group-id=" | 1927 | </span><span·class="nc">ct</span><span·class="p">:</span><span·class="nf">get_config</span><span·class="p"·data-group-id="8037817858-12">(</span><span·class="p"·data-group-id="8037817858-13">{</span><span·class="ss">unix</span><span·class="p">,</span><span·class="ss">ftp</span><span·class="p"·data-group-id="8037817858-13">}</span><span·class="p">,</span><span·class="n">Defaul[·...·truncated·by·diffoscope;·len:·49,·SHA:·67d6b5508975161d94db9231c858810b9f0b0cbe7c53f4a858c9cf49c092f96b·...·]-12">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">Default</span><span·class="w"> |
| 1928 | </span><span·class="nc">ct</span><span·class="p">:</span><span·class="nf">get_config</span><span·class="p"·data-group-id=" | 1928 | </span><span·class="nc">ct</span><span·class="p">:</span><span·class="nf">get_config</span><span·class="p"·data-group-id="8037817858-14">(</span><span·class="ss">unknownkey</span><span·class="p">,</span><span·class="n">Default</span><span·class="p"·data-group-id="8037817858-14">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">Default</span></code></pre><p>If·a·configuration·variable·key·has·been·associated·with·a·name·(by |
| 1929 | <a·href="#require/2"><code·class="inline">ct:require/2</code></a>·or·a·<code·class="inline">require</code>·statement),·the·name·can·be·used | 1929 | <a·href="#require/2"><code·class="inline">ct:require/2</code></a>·or·a·<code·class="inline">require</code>·statement),·the·name·can·be·used |
| 1930 | instead·of·the·key·to·read·the·value:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">ct</span><span·class="p">:</span><span·class="nf">require</span><span·class="p"·data-group-id=" | 1930 | instead·of·the·key·to·read·the·value:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">ct</span><span·class="p">:</span><span·class="nf">require</span><span·class="p"·data-group-id="9916880801-1">(</span><span·class="ss">myuser</span><span·class="p">,</span><span·class="p"·data-group-id="9916880801-2">{</span><span·class="ss">unix</span><span·class="p">,</span><span·class="ss">user</span><span·class="p"·data-group-id="9916880801-2">}<[·...·truncated·by·diffoscope;·len:·47,·SHA:·2ac52226933cc66d3e0a00f12833bdf5fd1dfed1af8a33ca8d7560d16a52623a·...·]-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">ok</span><span·class="p">.</span><span·class="w"> |
| 1931 | </span><span·class="nc">ct</span><span·class="p">:</span><span·class="nf">get_config</span><span·class="p"·data-group-id=" | 1931 | </span><span·class="nc">ct</span><span·class="p">:</span><span·class="nf">get_config</span><span·class="p"·data-group-id="9916880801-3">(</span><span·class="ss">myuser</span><span·class="p">,</span><span·class="n">Default</span><span·class="p"·data-group-id="9916880801-3">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="p"·data-[·...·truncated·by·diffoscope;·len:·507,·SHA:·0a7a1203eb6a03603634dc629e499894a68d7caf9a88a0b780a99d57c4e1cfb7·...·]-4">]</span></code></pre><p>If·a·configuration·variable·is·defined·in·multiple·files,·use·option·<code·class="inline">all</code>·to |
| 1932 | access·all·possible·values.·The·values·are·returned·in·a·list.·The·order·of·the | 1932 | access·all·possible·values.·The·values·are·returned·in·a·list.·The·order·of·the |
| 1933 | elements·corresponds·to·the·order·that·the·configuration·files·were·specified·at | 1933 | elements·corresponds·to·the·order·that·the·configuration·files·were·specified·at |
| 1934 | startup.</p><p>If·configuration·elements·(key-value·tuples)·are·to·be·returned·as·result | 1934 | startup.</p><p>If·configuration·elements·(key-value·tuples)·are·to·be·returned·as·result |
| 1935 | instead·of·values,·use·option·<code·class="inline">element</code>.·The·returned·elements·are·then·on·the | 1935 | instead·of·values,·use·option·<code·class="inline">element</code>.·The·returned·elements·are·then·on·the |
| 1936 | form·<code·class="inline">{Required,Value}</code>.</p><p>See·also·<a·href="#get_config/1"><code·class="inline">ct:get_config/1</code></a>, | 1936 | form·<code·class="inline">{Required,Value}</code>.</p><p>See·also·<a·href="#get_config/1"><code·class="inline">ct:get_config/1</code></a>, |
| 1937 | <a·href="#get_config/2"><code·class="inline">ct:get_config/2</code></a>,·<a·href="#require/1"><code·class="inline">ct:require/1</code></a>, | 1937 | <a·href="#get_config/2"><code·class="inline">ct:get_config/2</code></a>,·<a·href="#require/1"><code·class="inline">ct:require/1</code></a>, |
| 1938 | <a·href="#require/2"><code·class="inline">ct:require/2</code></a>.</p> | 1938 | <a·href="#require/2"><code·class="inline">ct:require/2</code></a>.</p> |
| Offset 1962, 15 lines modified | Offset 1962, 15 lines modified | ||
| 1962 | ······<div·class="specs"> | 1962 | ······<div·class="specs"> |
| 1963 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·get_event_mgr_ref()·->·EvMgrRef·when·EvMgrRef·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:atom/0">atom</a>().</pre> | 1963 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·get_event_mgr_ref()·->·EvMgrRef·when·EvMgrRef·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:atom/0">atom</a>().</pre> |
| 1964 | ······</div> | 1964 | ······</div> |
| 1965 | <p>Gets·a·reference·to·the·<code·class="inline">Common·Test</code>·event·manager.·The·reference·can·be·used | 1965 | <p>Gets·a·reference·to·the·<code·class="inline">Common·Test</code>·event·manager.·The·reference·can·be·used |
| 1966 | to,·for·example,·add·a·user-specific·event·handler·while·tests·are·running.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">gen_event</span><span·class="p">:</span><span·class="nf">add_handler</span><span·class="p"·data-group-id=" | 1966 | to,·for·example,·add·a·user-specific·event·handler·while·tests·are·running.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">gen_event</span><span·class="p">:</span><span·class="nf">add_handler</span><span·class="p"·data-group-id="8485045891-1">(</span><span·class="nc">ct</span><span·class="p">:</span><span·class="nf">get_event_mgr_ref</span><span·class="p"·data-group-id="8485045891-2">(</span><span·class="p"·data-group-id="8485045891-2">)</span><span·class="p">,</span><span·class="[·...·truncated·by·diffoscope;·len:·237,·SHA:·3c288aed1e9b6fa3410f7895402a4d2fa594d0e394c570748ed67d1a87cebd68·...·]-1">)</span></code></pre> |
| 1967 | ··</section> | 1967 | ··</section> |
| 1968 | </section> | 1968 | </section> |
| 1969 | <section·class="detail"·id="get_progname/0"> | 1969 | <section·class="detail"·id="get_progname/0"> |
| 1970 | ··<div·class="detail-header"> | 1970 | ··<div·class="detail-header"> |
| 1971 | ····<a·href="#get_progname/0"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 1971 | ····<a·href="#get_progname/0"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 1972 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 1972 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 2234, 15 lines modified | Offset 2234, 15 lines modified | ||
| 2234 | ·····················KeyOrFile·::·{key,·Key}·|·{file,·KeyFile}, | 2234 | ·····················KeyOrFile·::·{key,·Key}·|·{file,·KeyFile}, |
| 2235 | ·····················Key·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:string/0">string</a>(), | 2235 | ·····················Key·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:string/0">string</a>(), |
| 2236 | ·····················KeyFile·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:string/0">string</a>(), | 2236 | ·····················KeyFile·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:string/0">string</a>(), |
| 2237 | ·····················Reason·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>().</pre> | 2237 | ·····················Reason·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>().</pre> |
| 2238 | ······</div> | 2238 | ······</div> |
| 2239 | <p>Installs·configuration·files·and·event·handlers.</p><p>Run·this·function·once·before·the·first·test.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">install</span><span·class="p"·data-group-id=" | 2239 | <p>Installs·configuration·files·and·event·handlers.</p><p>Run·this·function·once·before·the·first·test.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">install</span><span·class="p"·data-group-id="3236006001-1">(</span><span·class="p"·data-group-id="3236006001-2">[</span><span·class="p"·data-group-id="3236006001-3">{</span><span·class="ss">config</span><span·class="p">,</span><span·class="p"·data-group-id="3236006001-4">[</span><span·class="s">"[·...·truncated·by·diffoscope;·len:·303,·SHA:·19105cc97e356f56ef5537bb56f855b67cff956cd388a5e84b44a9fce45301c9·...·]-1">)</span></code></pre><p>This·function·is·automatically·run·by·program·<code·class="inline">ct_run</code>.</p> |
| 2240 | ··</section> | 2240 | ··</section> |
| 2241 | </section> | 2241 | </section> |
| 2242 | <section·class="detail"·id="listenv/1"> | 2242 | <section·class="detail"·id="listenv/1"> |
| 2243 | ··<div·class="detail-header"> | 2243 | ··<div·class="detail-header"> |
| 2244 | ····<a·href="#listenv/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 2244 | ····<a·href="#listenv/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 2245 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 2245 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 3025, 15 lines modified | Offset 3025, 15 lines modified | ||
| 3025 | ·····················SubKey·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:atom/0">atom</a>(), | 3025 | ·····················SubKey·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:atom/0">atom</a>(), |
| 3026 | ·····················Reason·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>().</pre> | 3026 | ·····················Reason·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>().</pre> |
| 3027 | ······</div> | 3027 | ······</div> |
| 3028 | <p>Checks·if·the·required·configuration·is·available.·Arbitrarily·deep·tuples·can | 3028 | <p>Checks·if·the·required·configuration·is·available.·Arbitrarily·deep·tuples·can |
| 3029 | be·specified·as·<code·class="inline">Required</code>.·Only·the·last·element·of·the·tuple·can·be·a·list·of | 3029 | be·specified·as·<code·class="inline">Required</code>.·Only·the·last·element·of·the·tuple·can·be·a·list·of |
| 3030 | <code·class="inline">SubKey</code>s.</p><p><em>Example·1.</em>·Require·the·variable·<code·class="inline">myvar</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">ct</span><span·class="p">:</span><span·class="nf">require</span><span·class="p"·data-group-id=" | 3030 | <code·class="inline">SubKey</code>s.</p><p><em>Example·1.</em>·Require·the·variable·<code·class="inline">myvar</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">ct</span><span·class="p">:</span><span·class="nf">require</span><span·class="p"·data-group-id="3227142935-1">(</span><span·class="ss">myvar</span><span·class="p"·data-group-id="3227142935-1">)</span><span·class="p">.</span></code></pre><p>In·this·case·the·configuration·file·must·at·least·contain:</p><pre><code·class="makeup·erlang"·translate="no"><s[·...·truncated·by·diffoscope;·len:·3488,·SHA:·9c188619ff60f3beca768e4b74b9c9207d0b1fda75b8553d9754d2ecf0f56461·...·]-1">}</span><span·class="p">.</span></code></pre><p>See·also·<a·href="#get_config/1"><code·class="inline">ct:get_config/1</code></a>, |
| 3031 | <a·href="#get_config/2"><code·class="inline">ct:get_config/2</code></a>,·<a·href="#get_config/3"><code·class="inline">ct:get_config/3</code></a>, | 3031 | <a·href="#get_config/2"><code·class="inline">ct:get_config/2</code></a>,·<a·href="#get_config/3"><code·class="inline">ct:get_config/3</code></a>, |
| 3032 | <a·href="#require/2"><code·class="inline">ct:require/2</code></a>.</p> | 3032 | <a·href="#require/2"><code·class="inline">ct:require/2</code></a>.</p> |
| 3033 | ··</section> | 3033 | ··</section> |
| 3034 | </section> | 3034 | </section> |
| 3035 | <section·class="detail"·id="require/2"> | 3035 | <section·class="detail"·id="require/2"> |
| 3036 | ··<div·class="detail-header"> | 3036 | ··<div·class="detail-header"> |
| Offset 3065, 16 lines modified | Offset 3065, 16 lines modified | ||
| 3065 | <p>Checks·if·the·required·configuration·is·available·and·gives·it·a·name.·The | 3065 | <p>Checks·if·the·required·configuration·is·available·and·gives·it·a·name.·The |
| 3066 | semantics·for·<code·class="inline">Required</code>·is·the·same·as·in·<a·href="#require/1"><code·class="inline">ct:require/1</code></a>·except | 3066 | semantics·for·<code·class="inline">Required</code>·is·the·same·as·in·<a·href="#require/1"><code·class="inline">ct:require/1</code></a>·except |
| 3067 | that·a·list·of·<code·class="inline">SubKey</code>s·cannot·be·specified.</p><p>If·the·requested·data·is·available,·the·subentry·is·associated·with·<code·class="inline">Name</code>·so | 3067 | that·a·list·of·<code·class="inline">SubKey</code>s·cannot·be·specified.</p><p>If·the·requested·data·is·available,·the·subentry·is·associated·with·<code·class="inline">Name</code>·so |
| 3068 | that·the·value·of·the·element·can·be·read·with | 3068 | that·the·value·of·the·element·can·be·read·with |
| 3069 | <a·href="#get_config/1"><code·class="inline">ct:get_config/1,2</code></a>·provided·<code·class="inline">Name</code>·is·used·instead·of·the | 3069 | <a·href="#get_config/1"><code·class="inline">ct:get_config/1,2</code></a>·provided·<code·class="inline">Name</code>·is·used·instead·of·the |
| 3070 | whole·<code·class="inline">Required</code>·term.</p><p><em>Example:</em></p><p>Require·one·node·with·a·Telnet·connection·and·an·FTP·connection.·Name·the·node | 3070 | whole·<code·class="inline">Required</code>·term.</p><p><em>Example:</em></p><p>Require·one·node·with·a·Telnet·connection·and·an·FTP·connection.·Name·the·node |
| 3071 | <code·class="inline">a</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">ct</span><span·class="p">:</span><span·class="nf">require</span><span·class="p"·data-group-id="7336543185-1">(</span><span·class="ss">a</span><span·class="p">,</span><span·class="p"·data-group-id="7336543185-2">{</span><span·class="ss">machine</span><span·class="p">,</span><span·class="nb">node</span><span·class="p"·data-group-id="7336543185-2">}</span><span·class="p"·data-group-id="7336543185-1">)</span><span·class="p">.</span></code></pre><p>All·references·to·this·node·can·then·use·the·node·name.·For·example,·a·file·over | ||
| 3072 | 3071 | <code·class="inline">a</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">ct</span><span·class="p">:</span><span·class="nf">require</[·...·truncated·by·diffoscope;·len:·469,·SHA:·85b0150a2d15f0ba0ac3687b2a7430723981d8ad9237f0f3c444edde937b9c2d·...·] | |
| 3072 | FTP·is·fetched·like·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">ct</span><span·class="p">:</span><span·class="nf">ftp_get</span><span·class="p"·data-group-id="0134373504-1">(</span><span·class="ss">a</span><span·class="p">,</span><span·class="n">RemoteFile</span><span·class="p">,</span><span·class="n">LocalFile</span><span·class="p"·data-group-id="0134373504-1">)</span><span·class="p">.</span></code></pre><p>For·this·to·work,·the·configuration·file·must·at·least·contain:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="2832020208-1">{</span><span·class="ss">machine</span><span·class="p">,</span><span·class="p"·data-group-id="2832020208-2">[</span><span·class="p"·data-group-id="2832020208-3">{</span><span·class="nb">node</span><span·class="p">,</span><span·class="p"·data-group-id="2832020208-4">[</span><span·class="p"·data-group-id="2832020208-5">{</span><span·class="ss">telnet</span><span·class="p">,</span><span·class="n">IpAddr</span><span·class="p"·data-group-id="2832020208-5">}</span><span·class="p">,</span><span·class="p"·data-group-id="2832020208-6">{</span><span·class="ss">ftp</span><span·class="p">,</span><span·class="n">IpAddr</span><span·class="p"·data-group-id="2832020208-6">}</span><span·class="p"·data-group-id="2832020208-4">]</span><span·class="p"·data-group-id="2832020208-3">}</span><span·class="p"·data-group-id="2832020208-2">]</span><span·class="p"·data-group-id="2832020208-1">}</span><span·class="p">.</span></code></pre><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>The·behavior·of·this·function·changed·radically·in·<code·class="inline">Common·Test</code>·1.6.2.·To | ||
| 3073 | keep·some·backwards·compatibility,·it·is·still·possible·to·do: | 3073 | keep·some·backwards·compatibility,·it·is·still·possible·to·do: |
| 3074 | <code·class="inline">ct:require(a,{node,[telnet,ftp]}).</code>·This·associates·the·name·<code·class="inline">a</code>·with·the | 3074 | <code·class="inline">ct:require(a,{node,[telnet,ftp]}).</code>·This·associates·the·name·<code·class="inline">a</code>·with·the |
| 3075 | top-level·<code·class="inline">node</code>·entry.·For·this·to·work,·the·configuration·file·must·at·least | 3075 | top-level·<code·class="inline">node</code>·entry.·For·this·to·work,·the·configuration·file·must·at·least |
| 3076 | contain:·<code·class="inline">{node,[{telnet,IpAddr},{ftp,IpAddr}]}.</code></p></section><p>See·also·<a·href="#get_config/1"><code·class="inline">ct:get_config/1</code></a>, | 3076 | contain:·<code·class="inline">{node,[{telnet,IpAddr},{ftp,IpAddr}]}.</code></p></section><p>See·also·<a·href="#get_config/1"><code·class="inline">ct:get_config/1</code></a>, |
| 3077 | <a·href="#get_config/2"><code·class="inline">ct:get_config/2</code></a>,·<a·href="#get_config/3"><code·class="inline">ct:get_config/3</code></a>, | 3077 | <a·href="#get_config/2"><code·class="inline">ct:get_config/2</code></a>,·<a·href="#get_config/3"><code·class="inline">ct:get_config/3</code></a>, |
| 3078 | <a·href="#require/1"><code·class="inline">ct:require/1</code></a>.</p> | 3078 | <a·href="#require/1"><code·class="inline">ct:require/1</code></a>.</p> |
| 3079 | ··</section> | 3079 | ··</section> |
| Offset 3425, 20 lines modified | Offset 3425, 20 lines modified | ||
| 3425 | ······</div> | 3425 | ······</div> |
| 3426 | <p>Starts·<code·class="inline">Common·Test</code>·in·interactive·mode.</p><p>From·this·mode,·all·test·case·support·functions·can·be·executed·directly·from | 3426 | <p>Starts·<code·class="inline">Common·Test</code>·in·interactive·mode.</p><p>From·this·mode,·all·test·case·support·functions·can·be·executed·directly·from |
| 3427 | the·Erlang·shell.·The·interactive·mode·can·also·be·started·from·the·OS·command | 3427 | the·Erlang·shell.·The·interactive·mode·can·also·be·started·from·the·OS·command |
| 3428 | line·with·<code·class="inline">ct_run·-shell·[-config·File...]</code>.</p><p>If·any·functions·(for·example,·Telnet·or·FTP)·using·"required·configuration | 3428 | line·with·<code·class="inline">ct_run·-shell·[-config·File...]</code>.</p><p>If·any·functions·(for·example,·Telnet·or·FTP)·using·"required·configuration |
| 3429 | data"·are·to·be·called·from·the·Erlang·shell,·configuration·data·must·first·be | 3429 | data"·are·to·be·called·from·the·Erlang·shell,·configuration·data·must·first·be |
| 3430 | required·with·<a·href="#require/2"><code·class="inline">ct:require/2</code></a>.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="nc">ct</span><span·class="p">:</span><span·class="nf">require</span><span·class="p"·data-group-id=" | 3430 | required·with·<a·href="#require/2"><code·class="inline">ct:require/2</code></a>.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="nc">ct</span><span·class="p">:</span><span·class="nf">require</span><span·class="p"·data-group-id="5304382861-1">(</span><span·class="ss">unix_telnet</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">unix</span><span·class="p"·data-group-id="5304382861-1">)</span><span·class="p">.</span><span·class="w"> |
| 3431 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> | 3431 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> |
| 3432 | >·</span><span·class="nc">ct_telnet</span><span·class="p">:</span><span·class="nf">open</span><span·class="p"·data-group-id=" | 3432 | >·</span><span·class="nc">ct_telnet</span><span·class="p">:</span><span·class="nf">open</span><span·class="p"·data-group-id="5304382861-2">(</span><span·class="ss">unix_telnet</span><span·class="p"·data-group-id="5304382861-2">)</span><span·class="p">.</span><span·class="w"> |
| 3433 | </span><span·class="p"·data-group-id=" | 3433 | </span><span·class="p"·data-group-id="5304382861-3">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="o"><</span><span·class="mf">0.105</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="p"·data-group-id="5304382861-3">}</span><span·class="gp·unselectable"> |
| 3434 | >·</span><span·class="nc">ct_telnet</span><span·class="p">:</span><span·class="nf">cmd</span><span·class="p"·data-group-id=" | 3434 | >·</span><span·class="nc">ct_telnet</span><span·class="p">:</span><span·class="nf">cmd</span><span·class="p"·data-group-id="5304382861-4">(</span><span·class="ss">unix_telnet</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"ls·."</span><span·class="p"·data-group-id="5304382861-4">)</span><span·class="p">.</span><span·class="w"> |
| 3435 | </span><span·class="p"·data-group-id=" | 3435 | </span><span·class="p"·data-group-id="5304382861-5">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="p"·data-group-id="5304382861-6">[</span><span·class="s">"ls"</span><span·class="p">,</span><span·class="s">"file1··..."</span><span·class="p">,</span><[·...·truncated·by·diffoscope;·len:·165,·SHA:·9f1ab5a5e1115cac0c507deaf508dbe7e3cb3fc758c8d88a7d9e53e253db0512·...·]-5">}</span></code></pre> |
| 3436 | ··</section> | 3436 | ··</section> |
| 3437 | </section> | 3437 | </section> |
| 3438 | <section·class="detail"·id="step/3"> | 3438 | <section·class="detail"·id="step/3"> |
| 3439 | ··<div·class="detail-header"> | 3439 | ··<div·class="detail-header"> |
| 3440 | ····<a·href="#step/3"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 3440 | ····<a·href="#step/3"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 3441 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 3441 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
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| 3703 | ······<p·class="built-using"> | 3703 | ······<p·class="built-using"> |
| 3704 | ········Built·using | 3704 | ········Built·using |
| 3705 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 3705 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 3706 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 3706 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 3707 | ······</p> | 3707 | ······</p> |
| 3708 | <p>Copyright·©·1996-202 | 3708 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 3709 | ····</footer> | 3709 | ····</footer> |
| 3710 | ··</div> | 3710 | ··</div> |
| 3711 | </main> | 3711 | </main> |
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| 307 | ······<p·class="built-using"> | 307 | ······<p·class="built-using"> |
| 308 | ········Built·using | 308 | ········Built·using |
| 309 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 309 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 310 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 310 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 311 | ······</p> | 311 | ······</p> |
| 312 | <p>Copyright·©·1996-202 | 312 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 313 | ····</footer> | 313 | ····</footer> |
| 314 | ··</div> | 314 | ··</div> |
| 315 | </main> | 315 | </main> |
| 316 | </div> | 316 | </div> |
| 317 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 317 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 318 | ··<script> | 318 | ··<script> |
| 319 | ··let·initialized·=·false; | 319 | ··let·initialized·=·false; |
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| 567 | ·················LocalFile·::·<a·href="../../../../lib/kernel-10.3/doc/html/file.html#t:filename/0">file:filename</a>(), | 567 | ·················LocalFile·::·<a·href="../../../../lib/kernel-10.3/doc/html/file.html#t:filename/0">file:filename</a>(), |
| 568 | ·················RemoteFile·::·<a·href="../../../../lib/kernel-10.3/doc/html/file.html#t:filename/0">file:filename</a>(), | 568 | ·················RemoteFile·::·<a·href="../../../../lib/kernel-10.3/doc/html/file.html#t:filename/0">file:filename</a>(), |
| 569 | ·················Reason·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>().</pre> | 569 | ·················Reason·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>().</pre> |
| 570 | ······</div> | 570 | ······</div> |
| 571 | <p>Opens·an·FTP·connection·and·sends·a·file·to·the·remote·host.</p><p><code·class="inline">LocalFile</code>·and·<code·class="inline">RemoteFile</code>·must·be·absolute·paths.</p><p>If·the·target·host·is·a·"special"·node,·the·FTP·address·must·be·specified·in·the | 571 | <p>Opens·an·FTP·connection·and·sends·a·file·to·the·remote·host.</p><p><code·class="inline">LocalFile</code>·and·<code·class="inline">RemoteFile</code>·must·be·absolute·paths.</p><p>If·the·target·host·is·a·"special"·node,·the·FTP·address·must·be·specified·in·the |
| 572 | configuration·file·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="1 | 572 | configuration·file·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="1895713342-1">{</span><span·class="nb">node</span><span·class="p">,</span><span·class="p"·data-group-id="1895713342-2">[</span><span·class="p"·data-group-id="1895713342-3">{</span><span·class="ss">ftp</span><span·class="p">,</span><span·class="n">IpAddr</sp[·...·truncated·by·diffoscope;·len:·150,·SHA:·89005d74b36407ad17e620b7c83ff6fa3bed10c731ebf8492bdc8235a7043b62·...·]-1">}</span><span·class="p">.</span></code></pre><p>If·the·target·host·is·something·else,·for·example,·a·UNIX·host,·the |
| 573 | configuration·file·must·also·include·the·username·and·password·(both·strings):</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="2 | 573 | configuration·file·must·also·include·the·username·and·password·(both·strings):</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="2455948359-1">{</span><span·class="ss">unix</span><span·class="p">,</span><span·class="p"·data-group-id="2455948359-2">[</span><span·class="p"·data-group-id="2455948359-3">{</span><span·class="ss">ftp</span><span·class="p">,</span><span·class="n">IpAddr</sp[·...·truncated·by·diffoscope;·len:·44,·SHA:·2e5318f3f804c48cc75647d92fa2fd7ebfc5fbba4b026bc830b2f2385442c868·...·]-3">}</span><span·class="p">,</span><span·class="w"> |
| 574 | ·······</span><span·class="p"·data-group-id="2 | 574 | ·······</span><span·class="p"·data-group-id="2455948359-4">{</span><span·class="ss">username</span><span·class="p">,</span><span·class="n">Username</span><span·class="p"·data-group-id="2455948359-4">}</span><span·class="p">,</span><span·class="w"> |
| 575 | ·······</span><span·class="p"·data-group-id="2 | 575 | ·······</span><span·class="p"·data-group-id="2455948359-5">{</span><span·class="ss">password</span><span·class="p">,</span><span·class="n">Password</span><span·class="p"·data-group-id="2455948359-5">}</span><span·class="p"·data-group-id="2455948359-2">]</span><span·class="p"·data-group-id="2455948359-1">}</span><span·class="p">.</span></code></pre><p>See·also·<a·href="ct.html#require/2"><code·class="inline">ct:require/2</code></a>.</p> |
| 576 | ··</section> | 576 | ··</section> |
| 577 | </section> | 577 | </section> |
| 578 | <section·class="detail"·id="recv/2"> | 578 | <section·class="detail"·id="recv/2"> |
| 579 | ··<div·class="detail-header"> | 579 | ··<div·class="detail-header"> |
| 580 | ····<a·href="#recv/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 580 | ····<a·href="#recv/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 581 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 581 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 742, 15 lines modified | Offset 742, 15 lines modified | ||
| 742 | ······<p·class="built-using"> | 742 | ······<p·class="built-using"> |
| 743 | ········Built·using | 743 | ········Built·using |
| 744 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 744 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 745 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 745 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 746 | ······</p> | 746 | ······</p> |
| 747 | <p>Copyright·©·1996-202 | 747 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 748 | ····</footer> | 748 | ····</footer> |
| 749 | ··</div> | 749 | ··</div> |
| 750 | </main> | 750 | </main> |
| 751 | </div> | 751 | </div> |
| 752 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 752 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 753 | ··<script> | 753 | ··<script> |
| 754 | ··let·initialized·=·false; | 754 | ··let·initialized·=·false; |
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| 1359 | ······<p·class="built-using"> | 1359 | ······<p·class="built-using"> |
| 1360 | ········Built·using | 1360 | ········Built·using |
| 1361 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1361 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1362 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1362 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1363 | ······</p> | 1363 | ······</p> |
| 1364 | <p>Copyright·©·1996-202 | 1364 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1365 | ····</footer> | 1365 | ····</footer> |
| 1366 | ··</div> | 1366 | ··</div> |
| 1367 | </main> | 1367 | </main> |
| 1368 | </div> | 1368 | </div> |
| 1369 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1369 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1370 | ··<script> | 1370 | ··<script> |
| 1371 | ··let·initialized·=·false; | 1371 | ··let·initialized·=·false; |
| Offset 249, 20 lines modified | Offset 249, 20 lines modified | ||
| 249 | </h3> | 249 | </h3> |
| 250 | <p>In·a·CTH,·the·behavior·can·be·hooked·in·before·the·following·functions:</p><ul><li><a·href="ct_suite.html#c:init_per_suite/1"><code·class="inline">init_per_suite</code></a></li><li><a·href="ct_suite.html#c:init_per_group/2"><code·class="inline">init_per_group</code></a></li><li><a·href="ct_suite.html#c:init_per_testcase/2"><code·class="inline">init_per_testcase</code></a></li><li><a·href="ct_suite.html#c:end_per_testcase/2"><code·class="inline">end_per_testcase</code></a></li><li><a·href="ct_suite.html#c:end_per_group/2"><code·class="inline">end_per_group</code></a></li><li><a·href="ct_suite.html#c:end_per_suite/1"><code·class="inline">end_per_suite</code></a></li></ul><p>This·is·done·in·the·CTH·functions·called·<code·class="inline">pre_<name·of·function></code>.·These | 250 | <p>In·a·CTH,·the·behavior·can·be·hooked·in·before·the·following·functions:</p><ul><li><a·href="ct_suite.html#c:init_per_suite/1"><code·class="inline">init_per_suite</code></a></li><li><a·href="ct_suite.html#c:init_per_group/2"><code·class="inline">init_per_group</code></a></li><li><a·href="ct_suite.html#c:init_per_testcase/2"><code·class="inline">init_per_testcase</code></a></li><li><a·href="ct_suite.html#c:end_per_testcase/2"><code·class="inline">end_per_testcase</code></a></li><li><a·href="ct_suite.html#c:end_per_group/2"><code·class="inline">end_per_group</code></a></li><li><a·href="ct_suite.html#c:end_per_suite/1"><code·class="inline">end_per_suite</code></a></li></ul><p>This·is·done·in·the·CTH·functions·called·<code·class="inline">pre_<name·of·function></code>.·These |
| 251 | functions·take·the·arguments·<code·class="inline">SuiteName</code>,·<code·class="inline">Name</code>·(group·or·test·case·name,·if | 251 | functions·take·the·arguments·<code·class="inline">SuiteName</code>,·<code·class="inline">Name</code>·(group·or·test·case·name,·if |
| 252 | applicable),·<code·class="inline">Config</code>,·and·<code·class="inline">CTHState</code>.·The·return·value·of·the·CTH·function·is | 252 | applicable),·<code·class="inline">Config</code>,·and·<code·class="inline">CTHState</code>.·The·return·value·of·the·CTH·function·is |
| 253 | always·a·combination·of·a·result·for·the·suite/group/test·and·an·updated | 253 | always·a·combination·of·a·result·for·the·suite/group/test·and·an·updated |
| 254 | <code·class="inline">CTHState</code>.</p><p>To·let·the·test·suite·continue·on·executing,·return·the·configuration·list·that | 254 | <code·class="inline">CTHState</code>.</p><p>To·let·the·test·suite·continue·on·executing,·return·the·configuration·list·that |
| 255 | you·want·the·test·to·use·as·the·result.</p><p>All·pre·hooks,·except·<code·class="inline">pre_end_per_testcase/4</code>,·can·skip·or·fail·the·test·by | 255 | you·want·the·test·to·use·as·the·result.</p><p>All·pre·hooks,·except·<code·class="inline">pre_end_per_testcase/4</code>,·can·skip·or·fail·the·test·by |
| 256 | returning·a·tuple·with·<code·class="inline">skip</code>·or·<code·class="inline">fail</code>,·and·a·reason·as·the·result.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">pre_init_per_suite</span><span·class="p"·data-group-id=" | 256 | returning·a·tuple·with·<code·class="inline">skip</code>·or·<code·class="inline">fail</code>,·and·a·reason·as·the·result.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">pre_init_per_suite</span><span·class="p"·data-group-id="4659028435-1">(</span><span·class="n">SuiteName</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Config</span><span·class="p">,</span><span·class="w">·</span><span·class="n">CTHState</span><span·class="p"·data-group-id="4659028435-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 257 | ··</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">db</span><span·class="p">:</span><span·class="nf">connect</span><span·class="p"·data-group-id=" | 257 | ··</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">db</span><span·class="p">:</span><span·class="nf">connect</span><span·class="p"·data-group-id="4659028435-2">(</span><span·class="p"·data-group-id="4659028435-2">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 258 | ····</span><span·class="p"·data-group-id=" | 258 | ····</span><span·class="p"·data-group-id="4659028435-3">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="p">_</span><span·class="n">Reason</span><span·class="p"·data-group-id="4659028435-3">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 259 | ······</span><span·class="p"·data-group-id=" | 259 | ······</span><span·class="p"·data-group-id="4659028435-4">{</span><span·class="p"·data-group-id="4659028435-5">{</span><span·class="ss">fail</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"Could·not·connect·to·DB"</span><span·class="p"·data-group-id="4659028435-5">}<[·...·truncated·by·diffoscope;·len:·126,·SHA:·5d2d0676dead3b0cb072fed10450a43e2fc883a03917d66bc25e07eaec5ce2bf·...·]-4">}</span><span·class="p">;</span><span·class="w"> |
| 260 | ····</span><span·class="p"·data-group-id=" | 260 | ····</span><span·class="p"·data-group-id="4659028435-6">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Handle</span><span·class="p"·data-group-id="4659028435-6">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 261 | ······</span><span·class="p"·data-group-id=" | 261 | ······</span><span·class="p"·data-group-id="4659028435-7">{</span><span·class="p"·data-group-id="4659028435-8">[</span><span·class="p"·data-group-id="4659028435-9">{</span><span·class="ss">db_handle</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Handle</span><span·class="p"·da[·...·truncated·by·diffoscope;·len:·649,·SHA:·40f30407cc3d67578edf73a6d9abc9c841ac21dce794441427749bca8e9f46d4·...·]-7">}</span><span·class="w"> |
| 262 | ··</span><span·class="k">end</span><span·class="p">.</span></code></pre><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>If·you·use·multiple·CTHs,·the·first·part·of·the·return·tuple·is·used·as·input | 262 | ··</span><span·class="k">end</span><span·class="p">.</span></code></pre><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>If·you·use·multiple·CTHs,·the·first·part·of·the·return·tuple·is·used·as·input |
| 263 | for·the·next·CTH.·So·in·the·previous·example·the·next·CTH·can·get | 263 | for·the·next·CTH.·So·in·the·previous·example·the·next·CTH·can·get |
| 264 | <code·class="inline">{fail,Reason}</code>·as·the·second·parameter.·If·you·have·many·CTHs·interacting,·do | 264 | <code·class="inline">{fail,Reason}</code>·as·the·second·parameter.·If·you·have·many·CTHs·interacting,·do |
| 265 | not·let·each·CTH·return·<code·class="inline">fail</code>·or·<code·class="inline">skip</code>.·Instead,·return·that·an·action·is·to | 265 | not·let·each·CTH·return·<code·class="inline">fail</code>·or·<code·class="inline">skip</code>.·Instead,·return·that·an·action·is·to |
| 266 | be·taken·through·the·<code·class="inline">Config</code>·list·and·implement·a·CTH·that,·at·the·end,·takes | 266 | be·taken·through·the·<code·class="inline">Config</code>·list·and·implement·a·CTH·that,·at·the·end,·takes |
| 267 | the·correct·action.</p></section><p><a·href=""·id="post"></a></p><h3·id="post-hooks"·class="section-heading"> | 267 | the·correct·action.</p></section><p><a·href=""·id="post"></a></p><h3·id="post-hooks"·class="section-heading"> |
| 268 | ··<a·href="#post-hooks"·class="hover-link"> | 268 | ··<a·href="#post-hooks"·class="hover-link"> |
| Offset 276, 26 lines modified | Offset 276, 26 lines modified | ||
| 276 | same·<code·class="inline">Config</code>·as·the·testcase·is·called·with.·<code·class="inline">Return</code>·is·the·value·returned·by | 276 | same·<code·class="inline">Config</code>·as·the·testcase·is·called·with.·<code·class="inline">Return</code>·is·the·value·returned·by |
| 277 | the·testcase.·If·the·testcase·fails·by·crashing,·<code·class="inline">Return</code>·is | 277 | the·testcase.·If·the·testcase·fails·by·crashing,·<code·class="inline">Return</code>·is |
| 278 | <code·class="inline">{'EXIT',{{Error,Reason},Stacktrace}}</code>.</p><p>The·return·value·of·the·CTH·function·is·always·a·combination·of·a·result·for·the | 278 | <code·class="inline">{'EXIT',{{Error,Reason},Stacktrace}}</code>.</p><p>The·return·value·of·the·CTH·function·is·always·a·combination·of·a·result·for·the |
| 279 | suite/group/test·and·an·updated·<code·class="inline">CTHState</code>.·If·you·do·not·want·the·callback·to | 279 | suite/group/test·and·an·updated·<code·class="inline">CTHState</code>.·If·you·do·not·want·the·callback·to |
| 280 | affect·the·outcome·of·the·test,·return·the·<code·class="inline">Return</code>·data·as·it·is·given·to·the | 280 | affect·the·outcome·of·the·test,·return·the·<code·class="inline">Return</code>·data·as·it·is·given·to·the |
| 281 | CTH.·You·can·also·modify·the·test·result.·By·returning·the·<code·class="inline">Config</code>·list·with | 281 | CTH.·You·can·also·modify·the·test·result.·By·returning·the·<code·class="inline">Config</code>·list·with |
| 282 | element·<code·class="inline">tc_status</code>·removed,·you·can·recover·from·a·test·failure.·As·in·all·the | 282 | element·<code·class="inline">tc_status</code>·removed,·you·can·recover·from·a·test·failure.·As·in·all·the |
| 283 | pre·hooks,·it·is·also·possible·to·fail/skip·the·test·case·in·the·post·hook.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">post_end_per_testcase</span><span·class="p"·data-group-id="7 | 283 | pre·hooks,·it·is·also·possible·to·fail/skip·the·test·case·in·the·post·hook.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">post_end_per_testcase</span><span·class="p"·data-group-id="7930787658-1">(</span><span·class="p">_</span><span·class="n">Suite</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="n">TC</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Config</span><span·cla[·...·truncated·by·diffoscope;·len:·504,·SHA:·204c6e7f50de8868c5b7072625a2ab608a00f71ac406656d6bac4491a258f36e·...·]8-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 284 | ··</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">db</span><span·class="p">:</span><span·class="nf">check_consistency</span><span·class="p"·data-group-id="7 | 284 | ··</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">db</span><span·class="p">:</span><span·class="nf">check_consistency</span><span·class="p"·data-group-id="7930787658-4">(</span><span·class="p"·data-group-id="7930787658-4">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 285 | ····</span><span·class="ss">true</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 285 | ····</span><span·class="ss">true</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 286 | ······</span><span·class="c1">%%·DB·is·good,·pass·the·test.</span><span·class="w"> | 286 | ······</span><span·class="c1">%%·DB·is·good,·pass·the·test.</span><span·class="w"> |
| 287 | ······</span><span·class="p"·data-group-id="7 | 287 | ······</span><span·class="p"·data-group-id="7930787658-5">{</span><span·class="nc">proplists</span><span·class="p">:</span><span·class="nf">delete</span><span·class="p"·data-group-id="7930787658-6">(</span><span·class="ss">tc_status</span><span·class="p">,</span><span·class="w">·</span><span·class="n[·...·truncated·by·diffoscope;·len:·187,·SHA:·37acc8d826978d37ec44d99da2936f242891cba228cb546ddc9eb606f340648c·...·]8-5">}</span><span·class="p">;</span><span·class="w"> |
| 288 | ····</span><span·class="ss">false</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 288 | ····</span><span·class="ss">false</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 289 | ······</span><span·class="c1">%%·DB·is·not·good,·mark·as·skipped·instead·of·failing</span><span·class="w"> | 289 | ······</span><span·class="c1">%%·DB·is·not·good,·mark·as·skipped·instead·of·failing</span><span·class="w"> |
| 290 | ······</span><span·class="p"·data-group-id="7 | 290 | ······</span><span·class="p"·data-group-id="7930787658-7">{</span><span·class="p"·data-group-id="7930787658-8">{</span><span·class="ss">skip</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"DB·is·inconsistent!"</span><span·class="p"·data-group-id="7930787658-8">}</span[·...·truncated·by·diffoscope;·len:·120,·SHA:·c74affcf8e7d3807d9ef8f2d026e08c2f1e2c8122276453decd16c7335146ad2·...·]8-7">}</span><span·class="w"> |
| 291 | ··</span><span·class="k">end</span><span·class="p">;</span><span·class="w"> | 291 | ··</span><span·class="k">end</span><span·class="p">;</span><span·class="w"> |
| 292 | </span><span·class="nf">post_end_per_testcase</span><span·class="p"·data-group-id="7 | 292 | </span><span·class="nf">post_end_per_testcase</span><span·class="p"·data-group-id="7930787658-9">(</span><span·class="p">_</span><span·class="n">Suite</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="n">TC</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Config</span><span·cla[·...·truncated·by·diffoscope;·len:·187,·SHA:·02ab4f0ab7802161f363db2e360abc56e1ab7460d393303cdd51b4c6cc037f5a·...·]8-9">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 293 | ··</span><span·class="c1">%%·Do·nothing·if·tc·does·not·crash.</span><span·class="w"> | 293 | ··</span><span·class="c1">%%·Do·nothing·if·tc·does·not·crash.</span><span·class="w"> |
| 294 | ··</span><span·class="p"·data-group-id="7 | 294 | ··</span><span·class="p"·data-group-id="7930787658-10">{</span><span·class="n">Return</span><span·class="p">,</span><span·class="w">·</span><span·class="n">CTHState</span><span·class="p"·data-group-id="7930787658-10">}</span><span·class="p">.</span></code></pre><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>Do·recover·from·a·testcase·failure·using·CTHs·only·a·last·resort.·If·used |
| 295 | wrongly,·it·can·be·very·difficult·to·determine·which·tests·that·pass·or·fail | 295 | wrongly,·it·can·be·very·difficult·to·determine·which·tests·that·pass·or·fail |
| 296 | in·a·test·run.</p></section><h3·id="skip-and-fail-hooks"·class="section-heading"> | 296 | in·a·test·run.</p></section><h3·id="skip-and-fail-hooks"·class="section-heading"> |
| 297 | ··<a·href="#skip-and-fail-hooks"·class="hover-link"> | 297 | ··<a·href="#skip-and-fail-hooks"·class="hover-link"> |
| 298 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 298 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 299 | ··</a> | 299 | ··</a> |
| 300 | ··<span·class="text">Skip·and·Fail·Hooks</span> | 300 | ··<span·class="text">Skip·and·Fail·Hooks</span> |
| 301 | </h3> | 301 | </h3> |
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| 336 | <p>The·following·CTH·logs·information·about·a·test·run·into·a·format·parseable·by | 336 | <p>The·following·CTH·logs·information·about·a·test·run·into·a·format·parseable·by |
| 337 | <a·href="../../../../lib/kernel-10.3/doc/html/file.html#consult/1"><code·class="inline">file:consult/1</code></a>·(in·Kernel):</p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%%%·Common·Test·Example·Common·Test·Hook·module.</span><span·class="w"> | 337 | <a·href="../../../../lib/kernel-10.3/doc/html/file.html#consult/1"><code·class="inline">file:consult/1</code></a>·(in·Kernel):</p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%%%·Common·Test·Example·Common·Test·Hook·module.</span><span·class="w"> |
| 338 | </span><span·class="c1">%%%</span><span·class="w"> | 338 | </span><span·class="c1">%%%</span><span·class="w"> |
| 339 | </span><span·class="c1">%%%·To·use·this·hook,·on·the·command·line:</span><span·class="w"> | 339 | </span><span·class="c1">%%%·To·use·this·hook,·on·the·command·line:</span><span·class="w"> |
| 340 | </span><span·class="c1">%%%·····ct_run·-suite·example_SUITE·-pa·.·-ct_hooks·example_cth</span><span·class="w"> | 340 | </span><span·class="c1">%%%·····ct_run·-suite·example_SUITE·-pa·.·-ct_hooks·example_cth</span><span·class="w"> |
| 341 | </span><span·class="c1">%%%</span><span·class="w"> | 341 | </span><span·class="c1">%%%</span><span·class="w"> |
| 342 | </span><span·class="c1">%%%·Note·`-pa·.`:·the·hook·beam·file·must·be·in·the·code·path·when·installing.</span><span·class="w"> | 342 | </span><span·class="c1">%%%·Note·`-pa·.`:·the·hook·beam·file·must·be·in·the·code·path·when·installing.</span><span·class="w"> |
| 343 | </span><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 343 | </span><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="3084076946-1">(</span><span·class="ss">example_cth</span><span·class="p"·data-group-id="3084076946-1">)</span><span·class="p">.</span><span·class="w"> |
| 344 | </span><span·class="c1">%%·Mandatory·Callbacks</span><span·class="w"> | 344 | </span><span·class="c1">%%·Mandatory·Callbacks</span><span·class="w"> |
| 345 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 345 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="3084076946-2">(</span><span·class="p"·data-group-id="3084076946-3">[</span><span·class="ss">init</span><span·class="p">/</span><span·class="mi">2</span><span·class="p"·data-group-id="3084076946-3">]</span><span·class="p"·data-group-id="3084076946-2">)</span><span·class="p">.</span><span·class="w"> |
| 346 | </span><span·class="c1">%%·Optional·Callbacks</span><span·class="w"> | 346 | </span><span·class="c1">%%·Optional·Callbacks</span><span·class="w"> |
| 347 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 347 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="3084076946-4">(</span><span·class="p"·data-group-id="3084076946-5">[</span><span·class="ss">id</span><span·class="p">/</span><span·class="mi">1</span><span·class="p"·data-group-id="3084076946-5">]</span><span·class="p"·data-group-id="3084076946-4">)</span><span·class="p">.</span><span·class="w"> |
| 348 | </span><span·class="w"> | 348 | </span><span·class="w"> |
| 349 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 349 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="3084076946-6">(</span><span·class="p"·data-group-id="3084076946-7">[</span><span·class="ss">pre_init_per_suite</span><span·class="p">/</span><span·class="mi">3</span><span·class="p"·data-group-id="3084076946-7">]</span><span·class="p"·data-group-id="308407[·...·truncated·by·diffoscope;·len:·4,·SHA:·f2bfa7ad3f3cfb230c4c8f7481542a7f6235fb7b9b0c42c85a53f92ed74c6231·...·]-6">)</span><span·class="p">.</span><span·class="w"> |
| 350 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 350 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="3084076946-8">(</span><span·class="p"·data-group-id="3084076946-9">[</span><span·class="ss">post_end_per_suite</span><span·class="p">/</span><span·class="mi">4</span><span·class="p"·data-group-id="3084076946-9">]</span><span·class="p"·data-group-id="308407[·...·truncated·by·diffoscope;·len:·4,·SHA:·f2bfa7ad3f3cfb230c4c8f7481542a7f6235fb7b9b0c42c85a53f92ed74c6231·...·]-8">)</span><span·class="p">.</span><span·class="w"> |
| 351 | </span><span·class="w"> | 351 | </span><span·class="w"> |
| 352 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 352 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="3084076946-10">(</span><span·class="p"·data-group-id="3084076946-11">[</span><span·class="ss">pre_init_per_testcase</span><span·class="p">/</span><span·class="mi">4</span><span·class="p"·data-group-id="3084076946-11">]</span><span·class="p"·data-group-id="[·...·truncated·by·diffoscope;·len:·10,·SHA:·3e9ecccf52174b86ba5bb258bfc6b5be66eb8059f1b11602d3c945ed45d66590·...·]-10">)</span><span·class="p">.</span><span·class="w"> |
| 353 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 353 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="3084076946-12">(</span><span·class="p"·data-group-id="3084076946-13">[</span><span·class="ss">post_end_per_testcase</span><span·class="p">/</span><span·class="mi">5</span><span·class="p"·data-group-id="3084076946-13">]</span><span·class="p"·data-group-id="[·...·truncated·by·diffoscope;·len:·10,·SHA:·3e9ecccf52174b86ba5bb258bfc6b5be66eb8059f1b11602d3c945ed45d66590·...·]-12">)</span><span·class="p">.</span><span·class="w"> |
| 354 | </span><span·class="w"> | 354 | </span><span·class="w"> |
| 355 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 355 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="3084076946-14">(</span><span·class="p"·data-group-id="3084076946-15">[</span><span·class="ss">on_tc_skip</span><span·class="p">/</span><span·class="mi">4</span><span·class="p"·data-group-id="3084076946-15">]</span><span·class="p"·data-group-id="3084076946-14">)</span><span·class="p">.</span><span·class="w"> |
| 356 | </span><span·class="w"> | 356 | </span><span·class="w"> |
| 357 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 357 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="3084076946-16">(</span><span·class="p"·data-group-id="3084076946-17">[</span><span·class="ss">terminate</span><span·class="p">/</span><span·class="mi">1</span><span·class="p"·data-group-id="3084076946-17">]</span><span·class="p"·data-group-id="3084076946-16">)</span><span·class="p">.</span><span·class="w"> |
| 358 | </span><span·class="c1">%%·This·hook·state·is·threaded·through·all·the·callbacks.</span><span·class="w"> | 358 | </span><span·class="c1">%%·This·hook·state·is·threaded·through·all·the·callbacks.</span><span·class="w"> |
| 359 | </span><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id=" | 359 | </span><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id="3084076946-18">(</span><span·class="ss">state</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3084076946-19">{</span><span·class="ss">filename</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">total[·...·truncated·by·diffoscope;·len:·489,·SHA:·c612da4a33108d0173558b1c3b32181ca89edab6e2029d4f7ffb822f0bce7e50·...·]-18">)</span><span·class="p">.</span><span·class="w"> |
| 360 | </span><span·class="c1">%%·This·example·hook·prints·its·results·to·a·file,·see·terminate/1.</span><span·class="w"> | 360 | </span><span·class="c1">%%·This·example·hook·prints·its·results·to·a·file,·see·terminate/1.</span><span·class="w"> |
| 361 | </span><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id=" | 361 | </span><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id="3084076946-20">(</span><span·class="ss">test_run</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3084076946-21">{</span><span·class="ss">total</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">skipp[·...·truncated·by·diffoscope;·len:·182,·SHA:·073efa0d76394f7372fba10893682e4d95389e73fdd8aec9940c6b492720644a·...·]-20">)</span><span·class="p">.</span><span·class="w"> |
| 362 | </span><span·class="c1">%%·Return·a·unique·id·for·this·CTH.</span><span·class="w"> | 362 | </span><span·class="c1">%%·Return·a·unique·id·for·this·CTH.</span><span·class="w"> |
| 363 | </span><span·class="c1">%%·Using·the·filename·means·the·hook·can·be·used·with·different</span><span·class="w"> | 363 | </span><span·class="c1">%%·Using·the·filename·means·the·hook·can·be·used·with·different</span><span·class="w"> |
| 364 | </span><span·class="c1">%%·log·files·to·separate·timing·data·within·the·same·test·run.</span><span·class="w"> | 364 | </span><span·class="c1">%%·log·files·to·separate·timing·data·within·the·same·test·run.</span><span·class="w"> |
| 365 | </span><span·class="c1">%%·See·Installing·a·CTH·for·more·information.</span><span·class="w"> | 365 | </span><span·class="c1">%%·See·Installing·a·CTH·for·more·information.</span><span·class="w"> |
| 366 | </span><span·class="nf">id</span><span·class="p"·data-group-id=" | 366 | </span><span·class="nf">id</span><span·class="p"·data-group-id="3084076946-22">(</span><span·class="n">Opts</span><span·class="p"·data-group-id="3084076946-22">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 367 | ····</span><span·class="c1">%%·the·path·is·relative·to·the·test·run·directory</span><span·class="w"> | 367 | ····</span><span·class="c1">%%·the·path·is·relative·to·the·test·run·directory</span><span·class="w"> |
| 368 | ····</span><span·class="nc">proplists</span><span·class="p">:</span><span·class="nf">get_value</span><span·class="p"·data-group-id=" | 368 | ····</span><span·class="nc">proplists</span><span·class="p">:</span><span·class="nf">get_value</span><span·class="p"·data-group-id="3084076946-23">(</span><span·class="ss">filename</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Opts</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"example_cth.log"</span><span·class="p"·data-group-i[·...·truncated·by·diffoscope;·len:·13,·SHA:·e7e5b8f95c72ac7d13fe23eaf663ee91db08af99aa39d84e5caf2b68e95d2a48·...·]-23">)</span><span·class="p">.</span><span·class="w"> |
| 369 | </span><span·class="c1">%%·Always·called·before·any·other·callback·function.·Use·this·to·initiate</span><span·class="w"> | 369 | </span><span·class="c1">%%·Always·called·before·any·other·callback·function.·Use·this·to·initiate</span><span·class="w"> |
| 370 | </span><span·class="c1">%%·any·common·state.</span><span·class="w"> | 370 | </span><span·class="c1">%%·any·common·state.</span><span·class="w"> |
| 371 | </span><span·class="nf">init</span><span·class="p"·data-group-id=" | 371 | </span><span·class="nf">init</span><span·class="p"·data-group-id="3084076946-24">(</span><span·class="n">Id</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="n">Opts</span><span·class="p"·data-group-id="3084076946-24">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 372 | ····</span><span·class="p"·data-group-id=" | 372 | ····</span><span·class="p"·data-group-id="3084076946-25">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">state</span><span·class="p"·data-group-id="3084076946-26">{</span><span·class="ss">filename</span><span·class="w">·</s[·...·truncated·by·diffoscope;·len:·602,·SHA:·064c9b71e4cb0e537104a7c4a5a2bf328d3fbbb28661781e21b7bdfda60ead37·...·]-25">}</span><span·class="p">.</span><span·class="w"> |
| 373 | </span><span·class="c1">%%·Called·before·init_per_suite·is·called.</span><span·class="w"> | 373 | </span><span·class="c1">%%·Called·before·init_per_suite·is·called.</span><span·class="w"> |
| 374 | </span><span·class="nf">pre_init_per_suite</span><span·class="p"·data-group-id=" | 374 | </span><span·class="nf">pre_init_per_suite</span><span·class="p"·data-group-id="3084076946-28">(</span><span·class="p">_</span><span·class="n">Suite</span><span·class="p">,</span><span·class="n">Config</span><span·class="p">,</span><span·class="n">State</span><span·class="p"·data-group-id="3084076946-28">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 375 | ····</span><span·class="p"·data-group-id=" | 375 | ····</span><span·class="p"·data-group-id="3084076946-29">{</span><span·class="n">Config</span><span·class="p">,</span><span·class="w">·</span><span·class="n">State</span><span·class="o">#</span><span·class="ss">state</span><span·class="p"·data-group-id="3084076946-30">{</span><span·class="ss">suit[·...·truncated·by·diffoscope;·len:·461,·SHA:·0aa4c5b3facd8c16aea2b4e15496f75a699d638ca23002cd2eef13b82177aef2·...·]-29">}</span><span·class="p">.</span><span·class="w"> |
| 376 | </span><span·class="c1">%%·Called·after·end_per_suite.</span><span·class="w"> | 376 | </span><span·class="c1">%%·Called·after·end_per_suite.</span><span·class="w"> |
| 377 | </span><span·class="nf">post_end_per_suite</span><span·class="p"·data-group-id=" | 377 | </span><span·class="nf">post_end_per_suite</span><span·class="p"·data-group-id="3084076946-32">(</span><span·class="n">Suite</span><span·class="p">,</span><span·class="p">_</span><span·class="n">Config</span><span·class="p">,</span><span·class="n">Return</span><span·class="p">,</span><span·class="n">State</span><span·class="p"·data-gr[·...·truncated·by·diffoscope;·len:·18,·SHA:·5844fba7f35949194f74a16898b556c562741ba13a089462a2c99d957905bf11·...·]-32">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 378 | ····</span><span·class="n">Data</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 378 | ····</span><span·class="n">Data</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="3084076946-33">{</span><span·class="ss">suites</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Suite</span><span·class="p">,</span><span·class="w">·</span><span·class="n">State</span><span·class="o">#</span><span·class="ss">state</span><span·class="p">.</span><span·class="ss">suite_total</span><span·class="p">,</span><span·class="w"> |
| 379 | ············</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">reverse</span><span·class="p"·data-group-id=" | 379 | ············</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">reverse</span><span·class="p"·data-group-id="3084076946-34">(</span><span·class="n">State</span><span·class="o">#</span><span·class="ss">state</span><span·class="p">.</span><span·class="ss">tcs</span><span·class="p"·data-group-id="3084076946-34">)</span><span·class="p"·data-group-id="3084076946-33">}</span><span·class="p">,</span><span·class="w"> |
| 380 | ····</span><span·class="p"·data-group-id=" | 380 | ····</span><span·class="p"·data-group-id="3084076946-35">{</span><span·class="n">Return</span><span·class="p">,</span><span·class="w">·</span><span·class="n">State</span><span·class="o">#</span><span·class="ss">state</span><span·class="p"·data-group-id="3084076946-36">{</span><span·class="ss">data[·...·truncated·by·diffoscope;·len:·406,·SHA:·f872f2200130ac798ac9eef00598b7594825fd3ed2105c78685d09a0635fc439·...·]-37">]</span><span·class="p">,</span><span·class="w"> |
| 381 | ·························</span><span·class="ss">total</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">State</span><span·class="o">#</span><span·class="ss">state</span><span·class="p">.</span><span·class="ss">total</span><span·class="w">·</span><span·class="o">+</span><span·class="w">·</span><span·class="n">State</span><span·class="o">#</span><span·class="ss">state</span><span·class="p">.</span><span·class="ss">suite_total</span><span·class="p"·data-group-id=" | 381 | ·························</span><span·class="ss">total</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">State</span><span·class="o">#</span><span·class="ss">state</span><span·class="p">.</span><span·class="ss">total</span><span·class="w">·</span><span·class="o">+</span><span·class="w">·</span><span·class="n">State</span><span·class="o">#</span><span·class="ss">state</span><span·class="p">.</span><span·class="ss">suite_total</span><span·class="p"·data-group-id="3084076946-36">}</span><span·class="p"·data-group-id="3084076946-35">}</span><span·class="p">.</span><span·class="w"> |
| 382 | </span><span·class="c1">%%·Called·before·each·init_per_testcase.</span><span·class="w"> | 382 | </span><span·class="c1">%%·Called·before·each·init_per_testcase.</span><span·class="w"> |
| 383 | </span><span·class="nf">pre_init_per_testcase</span><span·class="p"·data-group-id=" | 383 | </span><span·class="nf">pre_init_per_testcase</span><span·class="p"·data-group-id="3084076946-38">(</span><span·class="p">_</span><span·class="n">Suite</span><span·class="p">,</span><span·class="p">_</span><span·class="n">TC</span><span·class="p">,</span><span·class="n">Config</span><span·class="p">,</span><span·class="n">State</span><sp[·...·truncated·by·diffoscope;·len:·38,·SHA:·746d8504d4892153d505d2915753c3b7d252c358da5ea003b71c5c19674de08f·...·]-38">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 384 | ····</span><span·class="n">Now</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">monotonic_time</span><span·class="p"·data-group-id=" | 384 | ····</span><span·class="n">Now</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">monotonic_time</span><span·class="p"·data-group-id="3084076946-39">(</span><span·class="ss">microsecond</span><span·class="p"·data-group-id="3084076946-39">)</span><span·class="p">,</span><span·class="w"> |
| 385 | ····</span><span·class="p"·data-group-id=" | 385 | ····</span><span·class="p"·data-group-id="3084076946-40">{</span><span·class="n">Config</span><span·class="p">,</span><span·class="w">·</span><span·class="n">State</span><span·class="o">#</span><span·class="ss">state</span><span·class="p"·data-group-id="3084076946-41">{</span><span·class="ss">ts</[·...·truncated·by·diffoscope;·len:·590,·SHA:·17e06289caa53abe1dd8802ffc641f04dff29a601f5b4afe3e7e5804ceaee35e·...·]-40">}</span><span·class="p">.</span><span·class="w"> |
| 386 | </span><span·class="c1">%%·Called·after·each·end_per_testcase.</span><span·class="w"> | 386 | </span><span·class="c1">%%·Called·after·each·end_per_testcase.</span><span·class="w"> |
| 387 | </span><span·class="nf">post_end_per_testcase</span><span·class="p"·data-group-id=" | 387 | </span><span·class="nf">post_end_per_testcase</span><span·class="p"·data-group-id="3084076946-42">(</span><span·class="n">Suite</span><span·class="p">,</span><span·class="n">TC</span><span·class="p">,</span><span·class="p">_</span><span·class="n">Config</span><span·class="p">,</span><span·class="n">Return</span><span·class="p">,</span><s[·...·truncated·by·diffoscope;·len:·67,·SHA:·94a41e1a0b316d0e5db95860bc8ce2176aa04bc469a13199ee06ba6d9eeeceb9·...·]-42">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 388 | ····</span><span·class="n">Now</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">monotonic_time</span><span·class="p"·data-group-id=" | 388 | ····</span><span·class="n">Now</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">monotonic_time</span><span·class="p"·data-group-id="3084076946-43">(</span><span·class="ss">microsecond</span><span·class="p"·data-group-id="3084076946-43">)</span><span·class="p">,</span><span·class="w"> |
| 389 | ····</span><span·class="n">TCInfo</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 389 | ····</span><span·class="n">TCInfo</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="3084076946-44">{</span><span·class="ss">testcase</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Suite</span><span·class="p">,</span><span·class="w">·</span><span·class="n">TC</span><span·class="p">,</span><span·class="w">·</span><spa[·...·truncated·by·diffoscope;·len:·343,·SHA:·95b3aac16acdcb4bbba8704148a578b2368926897bfab390d3e4c56869915ea3·...·]-44">}</span><span·class="p">,</span><span·class="w"> |
| 390 | ····</span><span·class="p"·data-group-id=" | 390 | ····</span><span·class="p"·data-group-id="3084076946-45">{</span><span·class="n">Return</span><span·class="p">,</span><span·class="w">·</span><span·class="n">State</span><span·class="o">#</span><span·class="ss">state</span><span·class="p"·data-group-id="3084076946-46">{</span><span·class="ss">ts</[·...·truncated·by·diffoscope;·len:·693,·SHA:·16e84c692f188456c2bf97d55a32953aa7c08b88dcdbf57fa220e2e2742f7b60·...·]-45">}</span><span·class="p">.</span><span·class="w"> |
| 391 | </span><span·class="c1">%%·Called·when·a·test·case·is·skipped·by·either·user·action</span><span·class="w"> | 391 | </span><span·class="c1">%%·Called·when·a·test·case·is·skipped·by·either·user·action</span><span·class="w"> |
| 392 | </span><span·class="c1">%%·or·due·to·an·init·function·failing.</span><span·class="w"> | 392 | </span><span·class="c1">%%·or·due·to·an·init·function·failing.</span><span·class="w"> |
| 393 | </span><span·class="nf">on_tc_skip</span><span·class="p"·data-group-id=" | 393 | </span><span·class="nf">on_tc_skip</span><span·class="p"·data-group-id="3084076946-48">(</span><span·class="p">_</span><span·class="n">Suite</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="n">TC</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class=[·...·truncated·by·diffoscope;·len:·134,·SHA:·a353622965ffce29f36c047748039bca188ae6f96005e532620bcbac9c4ac6da·...·]-48">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 394 | ····</span><span·class="n">State</span><span·class="o">#</span><span·class="ss">state</span><span·class="p"·data-group-id=" | 394 | ····</span><span·class="n">State</span><span·class="o">#</span><span·class="ss">state</span><span·class="p"·data-group-id="3084076946-49">{</span><span·class="ss">skipped</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">State</span><span·class="o">#</span><span·class="ss">state</span><span·class="p">.</span><span·class="ss">skipped<[·...·truncated·by·diffoscope;·len:·144,·SHA:·f572f4e5d9a9370db66d52887db81c8c72651673dd341c1555f104fa1a686a2e·...·]-49">}</span><span·class="p">.</span><span·class="w"> |
| 395 | </span><span·class="c1">%%·Called·when·the·scope·of·the·CTH·is·done.</span><span·class="w"> | 395 | </span><span·class="c1">%%·Called·when·the·scope·of·the·CTH·is·done.</span><span·class="w"> |
| 396 | </span><span·class="nf">terminate</span><span·class="p"·data-group-id=" | 396 | </span><span·class="nf">terminate</span><span·class="p"·data-group-id="3084076946-50">(</span><span·class="n">State</span><span·class="p"·data-group-id="3084076946-50">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 397 | ····</span><span·class="c1">%%·use·append·to·avoid·data·loss·if·the·path·is·reused</span><span·class="w"> | 397 | ····</span><span·class="c1">%%·use·append·to·avoid·data·loss·if·the·path·is·reused</span><span·class="w"> |
| 398 | ····</span><span·class="p"·data-group-id=" | 398 | ····</span><span·class="p"·data-group-id="3084076946-51">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">File</span><span·class="p"·data-group-id="3084076946-51">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·[·...·truncated·by·diffoscope;·len:·569,·SHA:·9626cfa2d77260662a4b0937a192c1a20f543451c1f70fe4938fe524e74665b0·...·]-52">)</span><span·class="p">,</span><span·class="w"> |
| 399 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 399 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="3084076946-54">(</span><span·class="n">File</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"</span><span·class="si">~p</span><span·class="s">.</span><span·class="si">~n</span><span·class="s">"</span><span·class="p">,</span>[·...·truncated·by·diffoscope;·len:·340,·SHA:·0c70ba27c8d0acd1f13d951a75a44537f8eac3bb2f41337d871ffb0885ea9529·...·]-54">)</span><span·class="p">,</span><span·class="w"> |
| 400 | ····</span><span·class="nc">file</span><span·class="p">:</span><span·class="nf">close</span><span·class="p"·data-group-id=" | 400 | ····</span><span·class="nc">file</span><span·class="p">:</span><span·class="nf">close</span><span·class="p"·data-group-id="3084076946-57">(</span><span·class="n">File</span><span·class="p"·data-group-id="3084076946-57">)</span><span·class="p">,</span><span·class="w"> |
| 401 | ····</span><span·class="ss">ok</span><span·class="p">.</span><span·class="w"> | 401 | ····</span><span·class="ss">ok</span><span·class="p">.</span><span·class="w"> |
| 402 | </span><span·class="nf">results</span><span·class="p"·data-group-id=" | 402 | </span><span·class="nf">results</span><span·class="p"·data-group-id="3084076946-58">(</span><span·class="n">State</span><span·class="p"·data-group-id="3084076946-58">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
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| Offset 434, 15 lines modified | Offset 434, 15 lines modified | ||
| 434 | ······<div·class="specs"> | 434 | ······<div·class="specs"> |
| 435 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·get_event_mgr_ref()·->·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:atom/0">atom</a>().</pre> | 435 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·get_event_mgr_ref()·->·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:atom/0">atom</a>().</pre> |
| 436 | ······</div> | 436 | ······</div> |
| 437 | <p>Gets·a·reference·to·the·<code·class="inline">Common·Test</code>·master·event·manager.·The·reference·can·be | 437 | <p>Gets·a·reference·to·the·<code·class="inline">Common·Test</code>·master·event·manager.·The·reference·can·be |
| 438 | used·to,·for·example,·add·a·user-specific·event·handler·while·tests·are·running.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">gen_event</span><span·class="p">:</span><span·class="nf">add_handler</span><span·class="p"·data-group-id="3 | 438 | used·to,·for·example,·add·a·user-specific·event·handler·while·tests·are·running.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">gen_event</span><span·class="p">:</span><span·class="nf">add_handler</span><span·class="p"·data-group-id="3634285885-1">(</span><span·class="nc">ct_master</span><span·class="p">:</span><span·class="nf">get_event_mgr_ref</span><span·class="p"·data-group-id="3634285885-2">(</span><span·class="p"·data-group-id="3634285885-2">)</span><span·class="p">,</span><span·c[·...·truncated·by·diffoscope;·len:·243,·SHA:·1b69fc23f52500c93692bd7bceffe094fb9b923786aa93baa33913408c95a148·...·]-1">)</span></code></pre> |
| 439 | ··</section> | 439 | ··</section> |
| 440 | </section> | 440 | </section> |
| 441 | <section·class="detail"·id="progress/0"> | 441 | <section·class="detail"·id="progress/0"> |
| 442 | ··<div·class="detail-header"> | 442 | ··<div·class="detail-header"> |
| 443 | ····<a·href="#progress/0"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 443 | ····<a·href="#progress/0"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 444 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 444 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 770, 15 lines modified | Offset 770, 15 lines modified | ||
| 770 | ······<p·class="built-using"> | 770 | ······<p·class="built-using"> |
| 771 | ········Built·using | 771 | ········Built·using |
| 772 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 772 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 773 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 773 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 774 | ······</p> | 774 | ······</p> |
| 775 | <p>Copyright·©·1996-202 | 775 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 776 | ····</footer> | 776 | ····</footer> |
| 777 | ··</div> | 777 | ··</div> |
| 778 | </main> | 778 | </main> |
| 779 | </div> | 779 | </div> |
| 780 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 780 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 781 | ··<script> | 781 | ··<script> |
| 782 | ··let·initialized·=·false; | 782 | ··let·initialized·=·false; |
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| 152 | a·common·file·system.·<code·class="inline">Common·Test</code>·Master·cannot·start·test·nodes | 152 | a·common·file·system.·<code·class="inline">Common·Test</code>·Master·cannot·start·test·nodes |
| 153 | automatically.·The·nodes·must·be·started·in·advance·for·<code·class="inline">Common·Test</code>·Master·to | 153 | automatically.·The·nodes·must·be·started·in·advance·for·<code·class="inline">Common·Test</code>·Master·to |
| 154 | be·able·to·start·test·sessions·on·them.</p><p>Tests·are·started·by·calling·<a·href="ct_master.html#run/1"><code·class="inline">ct_master:run(TestSpecs)</code></a>·or | 154 | be·able·to·start·test·sessions·on·them.</p><p>Tests·are·started·by·calling·<a·href="ct_master.html#run/1"><code·class="inline">ct_master:run(TestSpecs)</code></a>·or |
| 155 | <a·href="ct_master.html#run/3"><code·class="inline">ct_master:run(TestSpecs,·InclNodes,·ExclNodes)</code></a></p><p><code·class="inline">TestSpecs</code>·is·either·the·name·of·a·test·specification·file·(string)·or·a·list | 155 | <a·href="ct_master.html#run/3"><code·class="inline">ct_master:run(TestSpecs,·InclNodes,·ExclNodes)</code></a></p><p><code·class="inline">TestSpecs</code>·is·either·the·name·of·a·test·specification·file·(string)·or·a·list |
| 156 | of·test·specifications.·If·it·is·a·list,·the·specifications·are·handled·(and·the | 156 | of·test·specifications.·If·it·is·a·list,·the·specifications·are·handled·(and·the |
| 157 | corresponding·tests·executed)·in·sequence.·An·element·in·a·<code·class="inline">TestSpecs</code>·list·can | 157 | corresponding·tests·executed)·in·sequence.·An·element·in·a·<code·class="inline">TestSpecs</code>·list·can |
| 158 | also·be·list·of·test·specifications.·The·specifications·in·such·a·list·are | 158 | also·be·list·of·test·specifications.·The·specifications·in·such·a·list·are |
| 159 | merged·into·one·combined·specification·before·test·execution.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">ct_master</span><span·class="p">:</span><span·class="nf">run</span><span·class="p"·data-group-id=" | 159 | merged·into·one·combined·specification·before·test·execution.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">ct_master</span><span·class="p">:</span><span·class="nf">run</span><span·class="p"·data-group-id="9630990361-1">(</span><span·class="p"·data-group-id="9630990361-2">[</span><span·class="s">"ts1"</span><span·class="p">,</span><span·class="s">"ts2"</span><span·class="p">,</span><span·class="p"·data-group-id="9630990361-3">[</span><spa[·...·truncated·by·diffoscope;·len:·243,·SHA:·59df33181cd874d9fd1d4d76b1126ed94fd89111a964a1970b6478d872b5833d·...·]-1">)</span></code></pre><p>Here,·the·tests·specified·by·"ts1"·run·first,·then·the·tests·specified·by·"ts2", |
| 160 | and·finally·the·tests·specified·by·both·"ts3"·and·"ts4".</p><p>The·<code·class="inline">InclNodes</code>·argument·to·<code·class="inline">run/3</code>·is·a·list·of·node·names.·Function·<code·class="inline">run/3</code> | 160 | and·finally·the·tests·specified·by·both·"ts3"·and·"ts4".</p><p>The·<code·class="inline">InclNodes</code>·argument·to·<code·class="inline">run/3</code>·is·a·list·of·node·names.·Function·<code·class="inline">run/3</code> |
| 161 | runs·the·tests·in·<code·class="inline">TestSpecs</code>·just·like·<code·class="inline">run/1</code>,·but·also·takes·any·test·in | 161 | runs·the·tests·in·<code·class="inline">TestSpecs</code>·just·like·<code·class="inline">run/1</code>,·but·also·takes·any·test·in |
| 162 | <code·class="inline">TestSpecs</code>,·which·is·not·explicitly·tagged·with·a·particular·node·name,·and | 162 | <code·class="inline">TestSpecs</code>,·which·is·not·explicitly·tagged·with·a·particular·node·name,·and |
| 163 | execute·it·on·the·nodes·listed·in·<code·class="inline">InclNodes</code>.·By·using·<code·class="inline">run/3</code>·this·way,·any | 163 | execute·it·on·the·nodes·listed·in·<code·class="inline">InclNodes</code>.·By·using·<code·class="inline">run/3</code>·this·way,·any |
| 164 | test·specification·can·be·used,·with·or·without·node·information,·in·a | 164 | test·specification·can·be·used,·with·or·without·node·information,·in·a |
| 165 | large-scale·test·environment.</p><p><code·class="inline">ExclNodes</code>·is·a·list·of·nodes·to·be·excluded·from·the·test.·That·is,·tests·that | 165 | large-scale·test·environment.</p><p><code·class="inline">ExclNodes</code>·is·a·list·of·nodes·to·be·excluded·from·the·test.·That·is,·tests·that |
| 166 | are·specified·in·the·test·specification·to·run·on·a·particular·node·are·not | 166 | are·specified·in·the·test·specification·to·run·on·a·particular·node·are·not |
| Offset 192, 40 lines modified | Offset 192, 40 lines modified | ||
| 192 | achieved·using·constants).·The·alias·is·declared·with·a·<code·class="inline">node</code>·term·as·follows:</p><p><code·class="inline">{node,·NodeAlias,·NodeName}</code></p><p>If·<code·class="inline">NodeRefs</code>·has·the·value·<code·class="inline">all_nodes</code>,·the·operation·or·test·is·performed·on | 192 | achieved·using·constants).·The·alias·is·declared·with·a·<code·class="inline">node</code>·term·as·follows:</p><p><code·class="inline">{node,·NodeAlias,·NodeName}</code></p><p>If·<code·class="inline">NodeRefs</code>·has·the·value·<code·class="inline">all_nodes</code>,·the·operation·or·test·is·performed·on |
| 193 | all·specified·test·nodes.·(Declaring·a·term·without·a·<code·class="inline">NodeRefs</code>·element·has·the | 193 | all·specified·test·nodes.·(Declaring·a·term·without·a·<code·class="inline">NodeRefs</code>·element·has·the |
| 194 | same·effect).·If·<code·class="inline">NodeRefs</code>·has·the·value·<code·class="inline">master</code>,·the·operation·is·only | 194 | same·effect).·If·<code·class="inline">NodeRefs</code>·has·the·value·<code·class="inline">master</code>,·the·operation·is·only |
| 195 | performed·on·the·<code·class="inline">Common·Test</code>·Master·node·(namely·set·the·log·directory·or | 195 | performed·on·the·<code·class="inline">Common·Test</code>·Master·node·(namely·set·the·log·directory·or |
| 196 | install·an·event·handler).</p><p>Consider·the·example·in·section | 196 | install·an·event·handler).</p><p>Consider·the·example·in·section |
| 197 | <a·href="run_test_chapter.html#test_specifications">Test·Specifications</a>·in·section | 197 | <a·href="run_test_chapter.html#test_specifications">Test·Specifications</a>·in·section |
| 198 | Running·Tests·and·Analysing·Results,·now·extended·with·node·information·and | 198 | Running·Tests·and·Analysing·Results,·now·extended·with·node·information·and |
| 199 | intended·to·be·executed·by·<code·class="inline">Common·Test</code>·Master:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="15 | 199 | intended·to·be·executed·by·<code·class="inline">Common·Test</code>·Master:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="1555511374-1">{</span><span·class="ss">define</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">'Top'</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"/home/test"</span><span·class="p"·data-group-i[·...·truncated·by·diffoscope;·len:·13,·SHA:·23c63f44dd8e2567f0acce4a3a8e834c31e82fa2837974d83771327d35abad81·...·]-1">}</span><span·class="p">.</span><span·class="w"> |
| 200 | </span><span·class="p"·data-group-id="15 | 200 | </span><span·class="p"·data-group-id="1555511374-2">{</span><span·class="ss">define</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">'T1'</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"'Top'/t1"</span><span·class="p"·data-gr[·...·truncated·by·diffoscope;·len:·18,·SHA:·777d68e4c9b1d59d933bf67a0708f4150fa761341a4520610e8c0b279640d10b·...·]-2">}</span><span·class="p">.</span><span·class="w"> |
| 201 | </span><span·class="p"·data-group-id="15 | 201 | </span><span·class="p"·data-group-id="1555511374-3">{</span><span·class="ss">define</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">'T2'</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"'Top'/t2"</span><span·class="p"·data-gr[·...·truncated·by·diffoscope;·len:·18,·SHA:·777d68e4c9b1d59d933bf67a0708f4150fa761341a4520610e8c0b279640d10b·...·]-3">}</span><span·class="p">.</span><span·class="w"> |
| 202 | </span><span·class="p"·data-group-id="15 | 202 | </span><span·class="p"·data-group-id="1555511374-4">{</span><span·class="ss">define</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">'T3'</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"'Top'/t3"</span><span·class="p"·data-gr[·...·truncated·by·diffoscope;·len:·18,·SHA:·777d68e4c9b1d59d933bf67a0708f4150fa761341a4520610e8c0b279640d10b·...·]-4">}</span><span·class="p">.</span><span·class="w"> |
| 203 | </span><span·class="p"·data-group-id="15 | 203 | </span><span·class="p"·data-group-id="1555511374-5">{</span><span·class="ss">define</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">'CfgFile'</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"config.cfg"</span><span·class="p"·data-gro[·...·truncated·by·diffoscope;·len:·17,·SHA:·fe911313c8aae96354789a78fc6b1eb3283079f53eff081caa46fac4a906e767·...·]-5">}</span><span·class="p">.</span><span·class="w"> |
| 204 | </span><span·class="p"·data-group-id="15 | 204 | </span><span·class="p"·data-group-id="1555511374-6">{</span><span·class="ss">define</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">'Node'</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">ct_node</span><span·class="p"·data-group-id="1555511374-6">}</span><span·class="p">.</span><span·class="w"> |
| 205 | </span><span·class="p"·data-group-id="15 | 205 | </span><span·class="p"·data-group-id="1555511374-7">{</span><span·class="nb">node</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">node1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">'Node@host_x'</span><span·class="p"·data-group-id="1555511[·...·truncated·by·diffoscope;·len:·3,·SHA:·01299ac65733b5a3d774265fbfe8396b8611e5e3321855dbc541cd301e71fe5e·...·]-7">}</span><span·class="p">.</span><span·class="w"> |
| 206 | </span><span·class="p"·data-group-id="15 | 206 | </span><span·class="p"·data-group-id="1555511374-8">{</span><span·class="nb">node</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">node2</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">'Node@host_y'</span><span·class="p"·data-group-id="1555511[·...·truncated·by·diffoscope;·len:·3,·SHA:·01299ac65733b5a3d774265fbfe8396b8611e5e3321855dbc541cd301e71fe5e·...·]-8">}</span><span·class="p">.</span><span·class="w"> |
| 207 | </span><span·class="p"·data-group-id="15 | 207 | </span><span·class="p"·data-group-id="1555511374-9">{</span><span·class="ss">logdir</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">master</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"'Top'/master_logs"</span><span·class="p"·data[·...·truncated·by·diffoscope;·len:·21,·SHA:·b3cbb38fa0da328bf1160c9bea26fcbf97996c8458c3e3d9390575f9b7b0c11c·...·]-9">}</span><span·class="p">.</span><span·class="w"> |
| 208 | </span><span·class="p"·data-group-id="15 | 208 | </span><span·class="p"·data-group-id="1555511374-10">{</span><span·class="ss">logdir</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"'Top'/logs"</span><span·class="p"·data-group-id="1555511374-10">}</span><span·class="p">.</span><span·class="w"> |
| 209 | </span><span·class="p"·data-group-id="15 | 209 | </span><span·class="p"·data-group-id="1555511374-11">{</span><span·class="ss">config</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">node1</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"'T1'/'CfgFile'"</span><span·class="p"[·...·truncated·by·diffoscope;·len:·26,·SHA:·65fb22f21b9b0c6271cc43b3c1450997968cb8bb18f045a6278172a1258da2bc·...·]-11">}</span><span·class="p">.</span><span·class="w"> |
| 210 | </span><span·class="p"·data-group-id="15 | 210 | </span><span·class="p"·data-group-id="1555511374-12">{</span><span·class="ss">config</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">node2</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"'T2'/'CfgFile'"</span><span·class="p"[·...·truncated·by·diffoscope;·len:·26,·SHA:·65fb22f21b9b0c6271cc43b3c1450997968cb8bb18f045a6278172a1258da2bc·...·]-12">}</span><span·class="p">.</span><span·class="w"> |
| 211 | </span><span·class="p"·data-group-id="15 | 211 | </span><span·class="p"·data-group-id="1555511374-13">{</span><span·class="ss">config</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"'T3'/'CfgFile'"</span><span·class="p"·data-group-id="1555511374-13">}</span><span·class="p">.</span><span·class="w"> |
| 212 | </span><span·class="p"·data-group-id="15 | 212 | </span><span·class="p"·data-group-id="1555511374-14">{</span><span·class="ss">suites</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">node1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">'T1'</span><span·class="p">,</span><span·class="w">·</s[·...·truncated·by·diffoscope;·len:·72,·SHA:·8a7836cedd576847e9f07770d1a874dd4f547a5a610106bacb2d972c9b5de78a·...·]-14">}</span><span·class="p">.</span><span·class="w"> |
| 213 | </span><span·class="p"·data-group-id="15 | 213 | </span><span·class="p"·data-group-id="1555511374-15">{</span><span·class="ss">skip_suites</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">node1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">'T1'</span><span·class="p">,</span><span·class="w"[·...·truncated·by·diffoscope;·len:·346,·SHA:·3b267031cbf9fc170dddad21846d5cb66261535aa7cf012b6e804cfa8e76bb2f·...·]-15">}</span><span·class="p">.</span><span·class="w"> |
| 214 | </span><span·class="p"·data-group-id="15 | 214 | </span><span·class="p"·data-group-id="1555511374-17">{</span><span·class="ss">skip_cases</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">node1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">'T1'</span><span·class="p">,</span><span·class="w">[·...·truncated·by·diffoscope;·len:·413,·SHA:·f52ab865867a225d26ac73fee7ba09c38182dcd5930ade5e83ce72e55c3fb434·...·]-17">}</span><span·class="p">.</span><span·class="w"> |
| 215 | </span><span·class="p"·data-group-id="15 | 215 | </span><span·class="p"·data-group-id="1555511374-19">{</span><span·class="ss">skip_cases</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">node1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">'T1'</span><span·class="p">,</span><span·class="w">[·...·truncated·by·diffoscope;·len:·356,·SHA:·337d6be06ad2eed4c4d500a85fa52f91530806c0a38b87a7499c336b089989c3·...·]-19">}</span><span·class="p">.</span><span·class="w"> |
| 216 | </span><span·class="p"·data-group-id="15 | 216 | </span><span·class="p"·data-group-id="1555511374-21">{</span><span·class="ss">suites</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">node2</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">'T2'</span><span·class="p">,</span><span·class="w">·</s[·...·truncated·by·diffoscope;·len:·243,·SHA:·3be3eaa2f86adda6e02e32580818ce484fa93fd9e30b3b6b5f7d6ef0ce14f5d4·...·]-21">}</span><span·class="p">.</span><span·class="w"> |
| 217 | </span><span·class="p"·data-group-id="15 | 217 | </span><span·class="p"·data-group-id="1555511374-23">{</span><span·class="ss">cases</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">node2</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">'T2'</span><span·class="p">,</span><span·class="w">·</sp[·...·truncated·by·diffoscope;·len:·368,·SHA:·f2494a902794b8b1b22b4e6e5510562d77e90cf73fad6048d59b23f2d207d52e·...·]-23">}</span><span·class="p">.</span><span·class="w"> |
| 218 | </span><span·class="p"·data-group-id="15 | 218 | </span><span·class="p"·data-group-id="1555511374-25">{</span><span·class="ss">skip_suites</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">'T3'</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">all</span><span·class="p">,</span><span·class="w">·[·...·truncated·by·diffoscope;·len:·98,·SHA:·565a27085d92f8d620feac4be6f465d5953427855fb6ad94a200ce4d8c0b3645·...·]-25">}</span><span·class="p">.</span></code></pre><p>This·example·specifies·the·same·tests·as·the·original·example.·But·now·if |
| 219 | started·with·a·call·to·<code·class="inline">ct_master:run(TestSpecName)</code>,·test·<code·class="inline">t1</code>·is·executed·on | 219 | started·with·a·call·to·<code·class="inline">ct_master:run(TestSpecName)</code>,·test·<code·class="inline">t1</code>·is·executed·on |
| 220 | node·<code·class="inline">ct_node@host_x</code>·(<code·class="inline">node1</code>),·test·<code·class="inline">t2</code>·on·<code·class="inline">ct_node@host_y</code>·(<code·class="inline">node2</code>)·and | 220 | node·<code·class="inline">ct_node@host_x</code>·(<code·class="inline">node1</code>),·test·<code·class="inline">t2</code>·on·<code·class="inline">ct_node@host_y</code>·(<code·class="inline">node2</code>)·and |
| 221 | test·<code·class="inline">t3</code>·on·both·<code·class="inline">node1</code>·and·<code·class="inline">node2</code>.·Configuration·file·<code·class="inline">t1</code>·is·only·read·on | 221 | test·<code·class="inline">t3</code>·on·both·<code·class="inline">node1</code>·and·<code·class="inline">node2</code>.·Configuration·file·<code·class="inline">t1</code>·is·only·read·on |
| 222 | <code·class="inline">node1</code>·and·configuration·file·<code·class="inline">t2</code>·only·on·<code·class="inline">node2</code>,·while·the·configuration | 222 | <code·class="inline">node1</code>·and·configuration·file·<code·class="inline">t2</code>·only·on·<code·class="inline">node2</code>,·while·the·configuration |
| 223 | file·<code·class="inline">t3</code>·is·read·on·both·<code·class="inline">node1</code>·and·<code·class="inline">node2</code>.·Both·test·nodes·write·log·files | 223 | file·<code·class="inline">t3</code>·is·read·on·both·<code·class="inline">node1</code>·and·<code·class="inline">node2</code>.·Both·test·nodes·write·log·files |
| 224 | to·the·same·directory.·(However,·the·<code·class="inline">Common·Test</code>·Master·node·uses·a·different | 224 | to·the·same·directory.·(However,·the·<code·class="inline">Common·Test</code>·Master·node·uses·a·different |
| 225 | log·directory·than·the·test·nodes.)</p><p>If·the·test·session·is·instead·started·with·a·call·to | 225 | log·directory·than·the·test·nodes.)</p><p>If·the·test·session·is·instead·started·with·a·call·to |
| Offset 240, 21 lines modified | Offset 240, 21 lines modified | ||
| 240 | always·performed·too,·of·course.</p><h2·id="automatic-startup-of-test-target-nodes"·class="section-heading"> | 240 | always·performed·too,·of·course.</p><h2·id="automatic-startup-of-test-target-nodes"·class="section-heading"> |
| 241 | ··<a·href="#automatic-startup-of-test-target-nodes"·class="hover-link"> | 241 | ··<a·href="#automatic-startup-of-test-target-nodes"·class="hover-link"> |
| 242 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 242 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 243 | ··</a> | 243 | ··</a> |
| 244 | ··<span·class="text">Automatic·Startup·of·Test·Target·Nodes</span> | 244 | ··<span·class="text">Automatic·Startup·of·Test·Target·Nodes</span> |
| 245 | </h2> | 245 | </h2> |
| 246 | <p><a·href=""·id="ct_slave"></a></p><p>Initial·actions·can·be·started·and·performed·automatically·on·test·target·nodes | 246 | <p><a·href=""·id="ct_slave"></a></p><p>Initial·actions·can·be·started·and·performed·automatically·on·test·target·nodes |
| 247 | using·test·specification·term·<code·class="inline">init</code>.</p><p>Two·subterms·are·supported,·<code·class="inline">node_start</code>·and·<code·class="inline">eval</code>.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="0 | 247 | using·test·specification·term·<code·class="inline">init</code>.</p><p>Two·subterms·are·supported,·<code·class="inline">node_start</code>·and·<code·class="inline">eval</code>.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="0553634033-1">{</span><span·class="nb">node</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">node1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">node1@host1</span><span·class="p"·data-group-id="0553634033-1">}</span><span·class="p">.</span><span·class="w"> |
| 248 | </span><span·class="p"·data-group-id="0 | 248 | </span><span·class="p"·data-group-id="0553634033-2">{</span><span·class="nb">node</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">node2</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">node1@host2</span><span·class="p"·data-group-id="0553634033-2">}</span><span·class="p">.</span><span·class="w"> |
| 249 | </span><span·class="p"·data-group-id="0 | 249 | </span><span·class="p"·data-group-id="0553634033-3">{</span><span·class="nb">node</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">node3</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">node2@host2</span><span·class="p"·data-group-id="0553634033-3">}</span><span·class="p">.</span><span·class="w"> |
| 250 | </span><span·class="p"·data-group-id="0 | 250 | </span><span·class="p"·data-group-id="0553634033-4">{</span><span·class="nb">node</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">node4</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">node1@host3</span><span·class="p"·data-group-id="0553634033-4">}</span><span·class="p">.</span><span·class="w"> |
| 251 | </span><span·class="p"·data-group-id="0451142334-5">{</span><span·class="ss">init</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">node1</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0451142334-6">[</span><span·class="p"·data-group-id="0451142334-7">{</span><span·class="ss">node_start</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0451142334-8">[</span><span·class="p"·data-group-id="0451142334-9">{</span><span·class="ss">callback_module</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">my_slave_callback</span><span·class="p"·data-group-id="0451142334-9">}</span><span·class="p"·data-group-id="0451142334-8">]</span><span·class="p"·data-group-id="0451142334-7">}</span><span·class="p"·data-group-id="0451142334-6">]</span><span·class="p"·data-group-id="0451142334-5">}</span><span·class="p">.</span><span·class="w"> | ||
| 252 | </span><span·class="p"·data-group-id="0 | 251 | </span><span·class="p"·data-group-id="0553634033-5">{</span><span·class="ss">init</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">node1</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0553634033-6">[</span><span·class="p"·data-group-id[·...·truncated·by·diffoscope;·len:·595,·SHA:·735f46832247252eaa8ce0d2b83b74d2cbb02cf1d38d9f8f9bb6fbcdbf2f223d·...·]">}</span><span·class="p">.</span><span·class="w"> |
| 252 | </span><span·class="p"·data-group-id="0553634033-10">{</span><span·class="ss">init</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0553634033-11">[</span><span·class="ss">node2</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">node3</span><span·class="p"·data-group-id="0553634033-11">]</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0553634033-12">{</span><span·class="ss">node_start</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0553634033-13">[</span><span·class="p"·data-group-id="0553634033-14">{</span><span·class="ss">username</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"ct_user"</span><span·class="p"·data-group-id="0553634033-14">}</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0553634033-15">{</span><span·class="ss">password</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"ct_password"</span><span·class="p"·data-group-id="0553634033-15">}</span><span·class="p"·data-group-id="0553634033-13">]</span><span·class="p"·data-group-id="0553634033-12">}</span><span·class="p"·data-group-id="0553634033-10">}</span><span·class="p">.</span><span·class="w"> | ||
| 253 | </span><span·class="p"·data-group-id="0 | 253 | </span><span·class="p"·data-group-id="0553634033-16">{</span><span·class="ss">init</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">node4</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0553634033-17">{</span><span·class="ss">eval</span[·...·truncated·by·diffoscope;·len:·518,·SHA:·ebd0ae5e75c956a38b6aa2ddac856e5abb0f5203576a5bc01b4b7d6dcb8bdc72·...·]-16">}</span><span·class="p">.</span></code></pre><p>This·test·specification·declares·that·<code·class="inline">node1@host1</code>·is·to·be·started·using·the |
| 254 | user·callback·function·<code·class="inline">callback_module:my_slave_callback/0</code>,·and·nodes | 254 | user·callback·function·<code·class="inline">callback_module:my_slave_callback/0</code>,·and·nodes |
| 255 | <code·class="inline">node1@host2</code>·and·<code·class="inline">node2@host2</code>·are·to·be·started·with·the·default·callback | 255 | <code·class="inline">node1@host2</code>·and·<code·class="inline">node2@host2</code>·are·to·be·started·with·the·default·callback |
| 256 | module·<code·class="inline">ct_slave</code>.·The·specified·username·and·password·are·used·to·log·on·to | 256 | module·<code·class="inline">ct_slave</code>.·The·specified·username·and·password·are·used·to·log·on·to |
| 257 | remote·host·<code·class="inline">host2</code>.·Also,·function·<code·class="inline">module:function/0</code>·is·evaluated·on | 257 | remote·host·<code·class="inline">host2</code>.·Also,·function·<code·class="inline">module:function/0</code>·is·evaluated·on |
| 258 | <code·class="inline">node1@host3</code>,·and·the·result·of·this·call·is·printed·to·the·log.</p><p>The·default·callback·module·<a·href="ct_slave.html"><code·class="inline">ct_slave</code></a>,·has·the·following·features:</p><ul><li>Starting·Erlang·target·nodes·on·local·or·remote·hosts·(application·<code·class="inline">SSH</code>·is | 258 | <code·class="inline">node1@host3</code>,·and·the·result·of·this·call·is·printed·to·the·log.</p><p>The·default·callback·module·<a·href="ct_slave.html"><code·class="inline">ct_slave</code></a>,·has·the·following·features:</p><ul><li>Starting·Erlang·target·nodes·on·local·or·remote·hosts·(application·<code·class="inline">SSH</code>·is |
| 259 | used·for·communication).</li><li>Ability·to·start·an·Erlang·emulator·with·more·flags·(any·flags·supported·by | 259 | used·for·communication).</li><li>Ability·to·start·an·Erlang·emulator·with·more·flags·(any·flags·supported·by |
| 260 | <code·class="inline">erl</code>·are·supported).</li><li>Supervision·of·a·node·being·started·using·internal·callback·functions.·Used·to | 260 | <code·class="inline">erl</code>·are·supported).</li><li>Supervision·of·a·node·being·started·using·internal·callback·functions.·Used·to |
| Offset 310, 15 lines modified | Offset 310, 15 lines modified | ||
| 310 | ······<p·class="built-using"> | 310 | ······<p·class="built-using"> |
| 311 | ········Built·using | 311 | ········Built·using |
| 312 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 312 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 313 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 313 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 314 | ······</p> | 314 | ······</p> |
| 315 | <p>Copyright·©·1996-202 | 315 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 316 | ····</footer> | 316 | ····</footer> |
| 317 | ··</div> | 317 | ··</div> |
| 318 | </main> | 318 | </main> |
| 319 | </div> | 319 | </div> |
| 320 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 320 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 321 | ··<script> | 321 | ··<script> |
| 322 | ··let·initialized·=·false; | 322 | ··let·initialized·=·false; |
| Offset 133, 50 lines modified | Offset 133, 50 lines modified | ||
| 133 | and·with·support·for·RFC·5277,·NETCONF·Event·Notifications.</p><p><a·href=""·id="Connecting"></a></p><p><em>Connecting·to·a·NETCONF·server</em></p><p>Call·<a·href="#connect/1"><code·class="inline">connect/1,2</code></a>·to·establish·a·connection·to·a·server,·then | 133 | and·with·support·for·RFC·5277,·NETCONF·Event·Notifications.</p><p><a·href=""·id="Connecting"></a></p><p><em>Connecting·to·a·NETCONF·server</em></p><p>Call·<a·href="#connect/1"><code·class="inline">connect/1,2</code></a>·to·establish·a·connection·to·a·server,·then |
| 134 | pass·the·returned·handle·to·<a·href="#session/1"><code·class="inline">session/1-3</code></a>·to·establish·a·NETCONF | 134 | pass·the·returned·handle·to·<a·href="#session/1"><code·class="inline">session/1-3</code></a>·to·establish·a·NETCONF |
| 135 | session·on·a·new·SSH·channel.·Each·call·to·<a·href="#session/1"><code·class="inline">session/1-3</code></a> | 135 | session·on·a·new·SSH·channel.·Each·call·to·<a·href="#session/1"><code·class="inline">session/1-3</code></a> |
| 136 | establishes·a·new·session·on·the·same·connection,·and·results·in·a·hello·message | 136 | establishes·a·new·session·on·the·same·connection,·and·results·in·a·hello·message |
| 137 | to·the·server.</p><p>Alternately,·<a·href="#open/1"><code·class="inline">open/1,2</code></a>·can·be·used·to·establish·a·single·session·on | 137 | to·the·server.</p><p>Alternately,·<a·href="#open/1"><code·class="inline">open/1,2</code></a>·can·be·used·to·establish·a·single·session·on |
| 138 | a·dedicated·connection.·(Or,·equivalently,·<a·href="#only_open/1"><code·class="inline">only_open/1,2</code></a> | 138 | a·dedicated·connection.·(Or,·equivalently,·<a·href="#only_open/1"><code·class="inline">only_open/1,2</code></a> |
| 139 | followed·by·<a·href="#hello/1"><code·class="inline">hello/1-3</code></a>.)</p><p>Connect/session·options·can·be·specified·in·a·configuration·file·with·entries | 139 | followed·by·<a·href="#hello/1"><code·class="inline">hello/1-3</code></a>.)</p><p>Connect/session·options·can·be·specified·in·a·configuration·file·with·entries |
| 140 | like·the·following.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="6 | 140 | like·the·following.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="4690055785-1">{</span><span·class="nf">server_id</span><span·class="p"·data-group-id="4690055785-2">(</span><span·class="p"·data-group-id="4690055785-2">)</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4690055785-3">[<[·...·truncated·by·diffoscope;·len:·236,·SHA:·f815ebfc08ba34cc868387ada016f0a1abe02b4bfc15893ccf0bef381a85310e·...·]-1">}</span><span·class="p">.</span></code></pre><p>The·<a·href="#t:server_id/0"><code·class="inline">server_id/0</code></a>·or·an·associated·<a·href="ct.html#t:target_name/0"><code·class="inline">ct:target_name/0</code></a>·can·then·be·passed·to |
| 141 | the·aforementioned·functions·to·use·the·referenced·configuration.</p><p><a·href=""·id="Signaling"></a></p><p><em>Signaling</em></p><p>Protocol·operations·in·the·NETCONF·protocol·are·realized·as·remote·procedure | 141 | the·aforementioned·functions·to·use·the·referenced·configuration.</p><p><a·href=""·id="Signaling"></a></p><p><em>Signaling</em></p><p>Protocol·operations·in·the·NETCONF·protocol·are·realized·as·remote·procedure |
| 142 | calls·(RPCs)·from·client·to·server·and·a·corresponding·reply·from·server·to | 142 | calls·(RPCs)·from·client·to·server·and·a·corresponding·reply·from·server·to |
| 143 | client.·RPCs·are·sent·using·like-named·functions·(eg. | 143 | client.·RPCs·are·sent·using·like-named·functions·(eg. |
| 144 | <a·href="#edit_config/3"><code·class="inline">edit_config/3-5</code></a>·to·send·an·edit-config·RPC),·with·the | 144 | <a·href="#edit_config/3"><code·class="inline">edit_config/3-5</code></a>·to·send·an·edit-config·RPC),·with·the |
| 145 | server·reply·as·return·value.·There·are·functions·for·each·RPC·defined·in·RFC | 145 | server·reply·as·return·value.·There·are·functions·for·each·RPC·defined·in·RFC |
| 146 | 6241·and·the·create-subscription·RPC·from·RFC·5277,·all·of·which·are·wrappers·on | 146 | 6241·and·the·create-subscription·RPC·from·RFC·5277,·all·of·which·are·wrappers·on |
| 147 | <a·href="#send_rpc/2"><code·class="inline">send_rpc/2,3</code></a>,·that·can·be·used·to·send·an·arbitrary·RPC·not | 147 | <a·href="#send_rpc/2"><code·class="inline">send_rpc/2,3</code></a>,·that·can·be·used·to·send·an·arbitrary·RPC·not |
| 148 | defined·in·RFC·6241·or·RFC·5277.</p><p>All·of·the·signaling·functions·have·one·variant·with·a·<code·class="inline">Timeout</code>·argument·and | 148 | defined·in·RFC·6241·or·RFC·5277.</p><p>All·of·the·signaling·functions·have·one·variant·with·a·<code·class="inline">Timeout</code>·argument·and |
| 149 | one·without,·corresponding·to·an·infinite·timeout.·The·latter·is·inappropriate | 149 | one·without,·corresponding·to·an·infinite·timeout.·The·latter·is·inappropriate |
| 150 | in·most·cases·since·a·non-response·by·the·server·or·a·missing·message-id·causes | 150 | in·most·cases·since·a·non-response·by·the·server·or·a·missing·message-id·causes |
| 151 | the·call·to·hang·indefinitely.</p><p><a·href=""·id="Logging"></a></p><p><em>Logging</em></p><p>The·NETCONF·server·uses·<code·class="inline">error_logger</code>·for·logging·of·NETCONF·traffic.·A·special | 151 | the·call·to·hang·indefinitely.</p><p><a·href=""·id="Logging"></a></p><p><em>Logging</em></p><p>The·NETCONF·server·uses·<code·class="inline">error_logger</code>·for·logging·of·NETCONF·traffic.·A·special |
| 152 | purpose·error·handler·is·implemented·in·<code·class="inline">ct_conn_log_h</code>.·To·use·this·error | 152 | purpose·error·handler·is·implemented·in·<code·class="inline">ct_conn_log_h</code>.·To·use·this·error |
| 153 | handler,·add·the·<code·class="inline">cth_conn_log</code>·hook·in·the·test·suite,·for·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">suite</span><span·class="p"·data-group-id=" | 153 | handler,·add·the·<code·class="inline">cth_conn_log</code>·hook·in·the·test·suite,·for·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">suite</span><span·class="p"·data-group-id="1554987536-1">(</span><span·class="p"·data-group-id="1554987536-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 154 | ····</span><span·class="p"·data-group-id=" | 154 | ····</span><span·class="p"·data-group-id="1554987536-2">[</span><span·class="p"·data-group-id="1554987536-3">{</span><span·class="ss">ct_hooks</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1554987536-4">[</span><span·class="p"·data-group-id="1554987536-5">{</[·...·truncated·by·diffoscope;·len:·937,·SHA:·b5323709af612682b3eb900f9dd39f95c27705d7aabe6b41b54bdb0bf9071b63·...·]-2">]</span><span·class="p">.</span></code></pre><p><code·class="inline">conn_log_mod()</code>·is·the·name·of·the·<code·class="inline">Common·Test</code>·module·implementing·the |
| 155 | connection·protocol,·for·example,·<code·class="inline">ct_netconfc</code>.</p><p>Hook·option·<code·class="inline">log_type</code>·specifies·the·type·of·logging:</p><ul><li><p><strong><code·class="inline">raw</code></strong>·-·The·sent·and·received·NETCONF·data·is·logged·to·a·separate·text | 155 | connection·protocol,·for·example,·<code·class="inline">ct_netconfc</code>.</p><p>Hook·option·<code·class="inline">log_type</code>·specifies·the·type·of·logging:</p><ul><li><p><strong><code·class="inline">raw</code></strong>·-·The·sent·and·received·NETCONF·data·is·logged·to·a·separate·text |
| 156 | file·"as·is"·without·any·formatting.·A·link·to·the·file·is·added·to·the·test | 156 | file·"as·is"·without·any·formatting.·A·link·to·the·file·is·added·to·the·test |
| 157 | case·HTML·log.</p></li><li><p><strong><code·class="inline">pretty</code></strong>·-·The·sent·and·received·NETCONF·data·is·logged·to·a·separate·text | 157 | case·HTML·log.</p></li><li><p><strong><code·class="inline">pretty</code></strong>·-·The·sent·and·received·NETCONF·data·is·logged·to·a·separate·text |
| 158 | file·with·XML·data·nicely·indented.·A·link·to·the·file·is·added·to·the·test | 158 | file·with·XML·data·nicely·indented.·A·link·to·the·file·is·added·to·the·test |
| 159 | case·HTML·log.</p></li><li><p><strong><code·class="inline">html·(default)</code></strong>·-·The·sent·and·received·NETCONF·traffic·is·pretty·printed | 159 | case·HTML·log.</p></li><li><p><strong><code·class="inline">html·(default)</code></strong>·-·The·sent·and·received·NETCONF·traffic·is·pretty·printed |
| 160 | directly·in·the·test·case·HTML·log.</p></li><li><p><strong><code·class="inline">silent</code></strong>·-·NETCONF·traffic·is·not·logged.</p></li></ul><p>By·default,·all·NETCONF·traffic·is·logged·in·one·single·log·file.·However, | 160 | directly·in·the·test·case·HTML·log.</p></li><li><p><strong><code·class="inline">silent</code></strong>·-·NETCONF·traffic·is·not·logged.</p></li></ul><p>By·default,·all·NETCONF·traffic·is·logged·in·one·single·log·file.·However, |
| 161 | different·connections·can·be·logged·in·separate·files.·To·do·this,·use·hook | 161 | different·connections·can·be·logged·in·separate·files.·To·do·this,·use·hook |
| 162 | option·<code·class="inline">hosts</code>·and·list·the·names·of·the·servers/connections·to·be·used·in·the | 162 | option·<code·class="inline">hosts</code>·and·list·the·names·of·the·servers/connections·to·be·used·in·the |
| 163 | suite.·The·connections·must·be·named·for·this·to·work,·that·is,·they·must·be | 163 | suite.·The·connections·must·be·named·for·this·to·work,·that·is,·they·must·be |
| 164 | opened·with·<a·href="#open/2"><code·class="inline">open/2</code></a>.</p><p>Option·<code·class="inline">hosts</code>·has·no·effect·if·<code·class="inline">log_type</code>·is·set·to·<code·class="inline">html</code>·or·<code·class="inline">silent</code>.</p><p>The·hook·options·can·also·be·specified·in·a·configuration·file·with | 164 | opened·with·<a·href="#open/2"><code·class="inline">open/2</code></a>.</p><p>Option·<code·class="inline">hosts</code>·has·no·effect·if·<code·class="inline">log_type</code>·is·set·to·<code·class="inline">html</code>·or·<code·class="inline">silent</code>.</p><p>The·hook·options·can·also·be·specified·in·a·configuration·file·with |
| 165 | configuration·variable·<code·class="inline">ct_conn_log</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="0 | 165 | configuration·variable·<code·class="inline">ct_conn_log</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="0552568620-1">{</span><span·class="ss">ct_conn_log</span><span·class="p">,</span><span·class="p"·data-group-id="0552568620-2">[</span><span·class="p"·data-group-id="0552568620-3">{</span><span·class="nc">ct</span><span·class="p">:</span><span·class="nf">con[·...·truncated·by·diffoscope;·len:·1139,·SHA:·0cf65e4baae836416d4ac65646d4495dc40d5d5bb6f492dc353183d2772049e8·...·]-5">}</span><span·class="p">,</span><span·class="w"> |
| 166 | ····························</span><span·class="p"·data-group-id=" | 166 | ····························</span><span·class="p"·data-group-id="0758641267-6">{</span><span·class="ss">hosts</span><span·class="p">,</span><span·class="p"·data-group-id="0758641267-7">[</span><span·class="nc">ct</span><span·class="p">:</span><span·class="nf">key_or_name</span><span·class="p"·data-group-id="0758641267-8[·...·truncated·by·diffoscope;·len:·369,·SHA:·9588ad975b1e496bfa1519cd488c55f1774966a115f0aa263cb17d2b984078b7·...·]-1">}</span></code></pre><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>Hook·options·specified·in·a·configuration·file·overwrite·the·hard-coded·hook |
| 167 | options·in·the·test·suite.</p></section><p><em>Logging·Example·1:</em></p><p><a·href=""·id="Logging_example_1"></a></p><p>The·following·<code·class="inline">ct_hooks</code>·statement·causes·pretty·printing·of·NETCONF·traffic·to | 167 | options·in·the·test·suite.</p></section><p><em>Logging·Example·1:</em></p><p><a·href=""·id="Logging_example_1"></a></p><p>The·following·<code·class="inline">ct_hooks</code>·statement·causes·pretty·printing·of·NETCONF·traffic·to |
| 168 | separate·logs·for·the·connections·named·<code·class="inline">nc_server1</code>·and·<code·class="inline">nc_server2</code>.·Any·other | 168 | separate·logs·for·the·connections·named·<code·class="inline">nc_server1</code>·and·<code·class="inline">nc_server2</code>.·Any·other |
| 169 | connections·are·logged·to·default·NETCONF·log.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">suite</span><span·class="p"·data-group-id="5 | 169 | connections·are·logged·to·default·NETCONF·log.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">suite</span><span·class="p"·data-group-id="5524504451-1">(</span><span·class="p"·data-group-id="5524504451-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 170 | ···</span><span·class="p"·data-group-id="5772636326-2">[</span><span·class="p"·data-group-id="5772636326-3">{</span><span·class="ss">ct_hooks</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="5772636326-4">[</span><span·class="p"·data-group-id="5772636326-5">{</span><span·class="ss">cth_conn_log</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="5772636326-6">[</span><span·class="p"·data-group-id="5772636326-7">{</span><span·class="ss">ct_netconfc</span><span·class="p">,</span><span·class="p"·data-group-id="5772636326-8">[</span><span·class="p"·data-group-id="5772636326-9">{</span><span·class="ss">log_type</span><span·class="p">,</span><span·class="ss">pretty</span><span·class="p"·data-group-id="5772636326-9">}</span><span·class="p">}</span><span·class="p">,</span><span·class="w"> | ||
| 171 | ··············································</span><span·class="p"·data-group-id="5772636326-10">{</span><span·class="ss">hosts</span><span·class="p">,</span><span·class="p"·data-group-id="5772636326-11">[</span><span·class="ss">nc_server1</span><span·class="p">,</span><span·class="ss">nc_server2</span><span·class="p"·data-group-id="5772636326-11">]</span><span·class="p"·data-group-id="5772636326-10">}</span><span·class="p"·data-group-id="5772636326-8">]</span><span·class="p"·data-group-id="5772636326-7">}</span><span·class="w"> | ||
| 172 | ·······························</span><span·class="p"·data-group-id="5772636326-6">]</span><span·class="p"·data-group-id="5772636326-5">}</span><span·class="p"·data-group-id="5772636326-4">]</span><span·class="p"·data-group-id="5772636326-3">}</span><span·class="p"·data-group-id="5772636326-2">]</span><span·class="p">.</span></code></pre><p>Connections·must·be·opened·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">open</span><span·class="p"·data-group-id="6503267748-1">(</span><span·class="ss">nc_server1</span><span·class="p">,</span><span·class="p"·data-group-id="6503267748-2">[</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p"·data-group-id="6503267748-2">]</span><span·class="p"·data-group-id="6503267748-1">)</span><span·class="p">,</span><span·class="w"> | ||
| 173 | </span><span·class="nf">open</span><span·class="p"·data-group-id="6503267748-3">(</span><span·class="ss">nc_server2</span><span·class="p">,</span><span·class="p"·data-group-id="6503267748-4">[</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p"·data-group-id="6503267748-4">]</span><span·class="p"·data-group-id="6503267748-3">)</span><span·class="p">.</span></code></pre><p><em>Logging·Example·2:</em></p><p><a·href=""·id="Logging_example_2"></a></p><p>The·following·configuration·file·causes·raw·logging·of·all·NETCONF·traffic·in·to | ||
| 174 | one·single·text·file:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="3684401075-1">{</span><span·class="ss">ct_conn_log</span><span·class="p">,</span><span·class="p"·data-group-id="3684401075-2">[</span><span·class="p"·data-group-id="3684401075-3">{</span><span·class="ss">ct_netconfc</span><span·class="p">,</span><span·class="p"·data-group-id="3684401075-4">[</span><span·class="p"·data-group-id="3684401075-5">{</span><span·class="ss">log_type</span><span·class="p">,</span><span·class="ss">raw</span><span·class="p"·data-group-id="3684401075-5">}</span><span·class="p"·data-group-id="3684401075-4">]</span><span·class="p"·data-group-id="3684401075-3">}</span><span·class="p"·data-group-id="3684401075-2">]</span><span·class="p"·data-group-id="3684401075-1">}</span><span·class="p">.</span></code></pre><p>The·<code·class="inline">ct_hooks</code>·statement·must·look·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">suite</span><span·class="p"·data-group-id="5446947949-1">(</span><span·class="p"·data-group-id="5446947949-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | ||
| 175 | ··· | 170 | ···</span><span·class="p"·data-group-id="5524504451-2">[</span><span·class="p"·data-group-id="5524504451-3">{</span><span·class="ss">ct_hooks</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="5524504451-4">[</span><span·clas[·...·truncated·by·diffoscope;·len:·601,·SHA:·c50698253e115c5909090a0f65c371e3ae5ef8bea06c5546872e81dd28d96bc8·...·] |
| 171 | ··············································</span><span·class="p"·data-group-id="5524504451-10">{</span><span·class="ss">hosts</span><span·class="p">,</span><span·class="p"·data-group-id="5524504451-11">[</span><span·class="ss">nc_server1</span><span·class="p">,</span><span·class="ss">nc_server2</span><span·class="p"·data-group-id="5524504451-11">]</span><span·class="p"·data-group-id="5524504451-10">}</span><span·class="p"·data-group-id="5524504451-8">]</span><span·class="p"·data-group-id="5524504451-7">}</span><span·class="w"> | ||
| 172 | ·······························</span><span·class="p"·data-group-id="5524504451-6">]</span><span·class="p"·data-group-id="5524504451-5">}</span><span·class="p"·data-group-id="5524504451-4">]</span><span·class="p"·data-group-id="5524504451-3">}</span><span·class="p"·data-group-id="5524504451-2">]</span><span·class="p">.</span></code></pre><p>Connections·must·be·opened·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">open</span><span·class="p"·data-group-id="5283094727-1">(</span><span·class="ss">nc_server1</span><span·class="p">,</span><span·class="p"·data-group-id="5283094727-2">[</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p"·data-group-id="5283094727-2">]</span><span·class="p"·data-group-id="5283094727-1">)</span><span·class="p">,</span><span·class="w"> | ||
| 173 | </span><span·class="nf">open</span><span·class="p"·data-group-id="5283094727-3">(</span><span·class="ss">nc_server2</span><span·class="p">,</span><span·class="p"·data-group-id="5283094727-4">[</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p"·data-group-id="5283094727-4">]</span><span·class="p"·data-group-id="5283094727-3">)</span><span·class="p">.</span></code></pre><p><em>Logging·Example·2:</em></p><p><a·href=""·id="Logging_example_2"></a></p><p>The·following·configuration·file·causes·raw·logging·of·all·NETCONF·traffic·in·to | ||
| 174 | one·single·text·file:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="0263431284-1">{</span><span·class="ss">ct_conn_log</span><span·class="p">,</span><span·class="p"·data-group-id="0263431284-2">[</span><span·class="p"·data-group-id="0263431284-3">{</span><span·class="ss">ct_netconfc</span><span·class="p">,</span><span·class="p"·data-group-id="0263431284-4">[</span><span·class="p"·data-group-id="0263431284-5">{</span><span·class="ss">log_type</span><span·class="p">,</span><span·class="ss">raw</span><span·class="p"·data-group-id="0263431284-5">}</span><span·class="p"·data-group-id="0263431284-4">]</span><span·class="p"·data-group-id="0263431284-3">}</span><span·class="p"·data-group-id="0263431284-2">]</span><span·class="p"·data-group-id="0263431284-1">}</span><span·class="p">.</span></code></pre><p>The·<code·class="inline">ct_hooks</code>·statement·must·look·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">suite</span><span·class="p"·data-group-id="6220036859-1">(</span><span·class="p"·data-group-id="6220036859-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | ||
| 175 | ····</span><span·class="p"·data-group-id="6220036859-2">[</span><span·class="p"·data-group-id="6220036859-3">{</span><span·class="ss">ct_hooks</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6220036859-4">[</span><span·class="p"·data-group-id="6220036859-5">{</span><span·class="ss">cth_conn_log</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6220036859-6">[</span><span·class="p"·data-group-id="6220036859-6">]</span><span·class="p"·data-group-id="6220036859-5">}</span><span·class="p"·data-group-id="6220036859-4">]</span><span·class="p"·data-group-id="6220036859-3">}</span><span·class="p"·data-group-id="6220036859-2">]</span><span·class="p">.</span></code></pre><p>The·same·<code·class="inline">ct_hooks</code>·statement·without·the·configuration·file·would·cause·HTML | ||
| 176 | logging·of·all·NETCONF·connections·in·to·the·test·case·HTML·log.</p> | 176 | logging·of·all·NETCONF·connections·in·to·the·test·case·HTML·log.</p> |
| 177 | ····</section> | 177 | ····</section> |
| 178 | </div> | 178 | </div> |
| 179 | ··<section·id="summary"·class="details-list"> | 179 | ··<section·id="summary"·class="details-list"> |
| 180 | ····<h1·class="section-heading"> | 180 | ····<h1·class="section-heading"> |
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| 2097 | ·························Result·::·ok·|·{error,·<a·href="#t:error_reason/0">error_reason</a>()}.</pre> | 2097 | ·························Result·::·ok·|·{error,·<a·href="#t:error_reason/0">error_reason</a>()}.</pre> |
| 2098 | ······</div> | 2098 | ······</div> |
| 2099 | <p>Edits·configuration·data.</p><p>By·default·only·the·running·target·is·available,·unless·the·server·includes | 2099 | <p>Edits·configuration·data.</p><p>By·default·only·the·running·target·is·available,·unless·the·server·includes |
| 2100 | <code·class="inline">:candidate</code>·or·<code·class="inline">:startup</code>·in·its·list·of·capabilities.</p><p><code·class="inline">OptParams</code>·can·be·used·for·specifying·optional·parameters·(<code·class="inline">default-operation</code>, | 2100 | <code·class="inline">:candidate</code>·or·<code·class="inline">:startup</code>·in·its·list·of·capabilities.</p><p><code·class="inline">OptParams</code>·can·be·used·for·specifying·optional·parameters·(<code·class="inline">default-operation</code>, |
| 2101 | <code·class="inline">test-option</code>,·or·<code·class="inline">error-option</code>)·to·be·added·to·the·<code·class="inline">edit-config</code>·request.·The | 2101 | <code·class="inline">test-option</code>,·or·<code·class="inline">error-option</code>)·to·be·added·to·the·<code·class="inline">edit-config</code>·request.·The |
| 2102 | value·must·be·a·list·containing·valid·simple·XML,·for·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 2102 | value·must·be·a·list·containing·valid·simple·XML,·for·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="0276577407-1">[</span><span·class="p"·data-group-id="0276577407-2">{</span><span·class="ss">'default-operation'</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0276577407-3">[</span><span·class="s">"none&qu[·...·truncated·by·diffoscope;·len:·104,·SHA:·b86535bc82cf4f491d86e7dcf8c09c1406c74698a63f2f62c2d602d1de6df82d·...·]-2">}</span><span·class="p">,</span><span·class="w"> |
| 2103 | ·</span><span·class="p"·data-group-id=" | 2103 | ·</span><span·class="p"·data-group-id="0276577407-4">{</span><span·class="ss">'error-option'</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0276577407-5">[</span><span·class="s">"rollback-on-error"</span><span·class="p"·data-group-id="0276[·...·truncated·by·diffoscope;·len:·112,·SHA:·819851ef132c41f723d2e84a5ead6bf707870808330e6df1d851068e3ca487b7·...·]-1">]</span></code></pre><p>If·<code·class="inline">OptParams</code>·is·not·given,·the·default·value·<code·class="inline">[]</code>·is·used.</p> |
| 2104 | ··</section> | 2104 | ··</section> |
| 2105 | </section> | 2105 | </section> |
| 2106 | <section·class="detail"·id="get/2"> | 2106 | <section·class="detail"·id="get/2"> |
| 2107 | ··<div·class="detail-header"> | 2107 | ··<div·class="detail-header"> |
| 2108 | ····<a·href="#get/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 2108 | ····<a·href="#get/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 2109 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 2109 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 3158, 15 lines modified | Offset 3158, 15 lines modified | ||
| 3158 | ······<p·class="built-using"> | 3158 | ······<p·class="built-using"> |
| 3159 | ········Built·using | 3159 | ········Built·using |
| 3160 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 3160 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 3161 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 3161 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 3162 | ······</p> | 3162 | ······</p> |
| 3163 | <p>Copyright·©·1996-202 | 3163 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 3164 | ····</footer> | 3164 | ····</footer> |
| 3165 | ··</div> | 3165 | ··</div> |
| 3166 | </main> | 3166 | </main> |
| 3167 | </div> | 3167 | </div> |
| 3168 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 3168 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 3169 | ··<script> | 3169 | ··<script> |
| 3170 | ··let·initialized·=·false; | 3170 | ··let·initialized·=·false; |
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| 131 | <p>Support·in·Common·Test·for·running·property-based·tests.</p><p>This·module·helps·running·property-based·tests·in·the·<code·class="inline">Common·Test</code>·framework. | 131 | <p>Support·in·Common·Test·for·running·property-based·tests.</p><p>This·module·helps·running·property-based·tests·in·the·<code·class="inline">Common·Test</code>·framework. |
| 132 | One·(or·more)·of·the·property·testing·tools</p><ul><li><a·href="http://www.quviq.com">QuickCheck</a>,</li><li><a·href="https://proper-testing.github.io">PropEr</a>·or</li><li><a·href="https://github.com/krestenkrab/triq">Triq</a></li></ul><p>is·assumed·to·be·installed.</p><p>The·idea·with·this·module·is·to·have·a·<code·class="inline">Common·Test</code>·test·suite·calling·a | 132 | One·(or·more)·of·the·property·testing·tools</p><ul><li><a·href="http://www.quviq.com">QuickCheck</a>,</li><li><a·href="https://proper-testing.github.io">PropEr</a>·or</li><li><a·href="https://github.com/krestenkrab/triq">Triq</a></li></ul><p>is·assumed·to·be·installed.</p><p>The·idea·with·this·module·is·to·have·a·<code·class="inline">Common·Test</code>·test·suite·calling·a |
| 133 | property·testing·tool·with·special·property·test·suites·as·defined·by·that·tool. | 133 | property·testing·tool·with·special·property·test·suites·as·defined·by·that·tool. |
| 134 | The·tests·are·collected·in·the·<code·class="inline">test</code>·directory·of·the·application.·The·<code·class="inline">test</code> | 134 | The·tests·are·collected·in·the·<code·class="inline">test</code>·directory·of·the·application.·The·<code·class="inline">test</code> |
| 135 | directory·has·a·subdirectory·<code·class="inline">property_test</code>,·where·everything·needed·for·the | 135 | directory·has·a·subdirectory·<code·class="inline">property_test</code>,·where·everything·needed·for·the |
| 136 | property·tests·are·collected.·The·usual·Erlang·application·directory·structure | 136 | property·tests·are·collected.·The·usual·Erlang·application·directory·structure |
| 137 | is·assumed.</p><p>A·typical·<code·class="inline">Common·Test</code>·test·suite·using·<code·class="inline">ct_property_test</code>·is·organized·as | 137 | is·assumed.</p><p>A·typical·<code·class="inline">Common·Test</code>·test·suite·using·<code·class="inline">ct_property_test</code>·is·organized·as |
| 138 | follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 138 | follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="6388220066-1">(</span><span·class="ss">my_prop_test_SUITE</span><span·class="p"·data-group-id="6388220066-1">)</span><span·class="p">.</span><span·class="w"> |
| 139 | </span><span·class="p">-</span><span·class="na">compile</span><span·class="p"·data-group-id=" | 139 | </span><span·class="p">-</span><span·class="na">compile</span><span·class="p"·data-group-id="6388220066-2">(</span><span·class="ss">export_all</span><span·class="p"·data-group-id="6388220066-2">)</span><span·class="p">.</span><span·class="w"> |
| 140 | </span><span·class="w"> | 140 | </span><span·class="w"> |
| 141 | </span><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id=" | 141 | </span><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id="6388220066-3">(</span><span·class="s">"common_test/include/ct.hrl"</span><span·class="p"·data-group-id="6388220066-3">)</span><span·class="p">.</span><span·class="w"> |
| 142 | </span><span·class="nf">all</span><span·class="p"·data-group-id=" | 142 | </span><span·class="nf">all</span><span·class="p"·data-group-id="6388220066-4">(</span><span·class="p"·data-group-id="6388220066-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="p"·data-group-id="6388220066-5">[</span><span·class="ss">prop_ftp_case</span><span·class="p"[·...·truncated·by·diffoscope;·len:·26,·SHA:·d0e1ab3824a7479bea153a76c5993085b9023f8c10ccf8405c092ba95fa9fc38·...·]-5">]</span><span·class="p">.</span><span·class="w"> |
| 143 | </span><span·class="nf">init_per_suite</span><span·class="p"·data-group-id=" | 143 | </span><span·class="nf">init_per_suite</span><span·class="p"·data-group-id="6388220066-6">(</span><span·class="n">Config</span><span·class="p"·data-group-id="6388220066-6">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 144 | ····</span><span·class="nc">ct_property_test</span><span·class="p">:</span><span·class="nf">init_per_suite</span><span·class="p"·data-group-id=" | 144 | ····</span><span·class="nc">ct_property_test</span><span·class="p">:</span><span·class="nf">init_per_suite</span><span·class="p"·data-group-id="6388220066-7">(</span><span·class="n">Config</span><span·class="p"·data-group-id="6388220066-7">)</span><span·class="p">.</span><span·class="w"> |
| 145 | </span><span·class="c1">%%%----·test·case</span><span·class="w"> | 145 | </span><span·class="c1">%%%----·test·case</span><span·class="w"> |
| 146 | </span><span·class="nf">prop_ftp_case</span><span·class="p"·data-group-id=" | 146 | </span><span·class="nf">prop_ftp_case</span><span·class="p"·data-group-id="6388220066-8">(</span><span·class="n">Config</span><span·class="p"·data-group-id="6388220066-8">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 147 | ····</span><span·class="nc">ct_property_test</span><span·class="p">:</span><span·class="nf">quickcheck</span><span·class="p"·data-group-id=" | 147 | ····</span><span·class="nc">ct_property_test</span><span·class="p">:</span><span·class="nf">quickcheck</span><span·class="p"·data-group-id="6388220066-9">(</span><span·class="w"> |
| 148 | ······</span><span·class="nc">ftp_simple_client_server</span><span·class="p">:</span><span·class="nf">prop_ftp</span><span·class="p"·data-group-id=" | 148 | ······</span><span·class="nc">ftp_simple_client_server</span><span·class="p">:</span><span·class="nf">prop_ftp</span><span·class="p"·data-group-id="6388220066-10">(</span><span·class="p"·data-group-id="6388220066-10">)</span><span·class="p">,</span><span·class="w"> |
| 149 | ······</span><span·class="n">Config</span><span·class="w"> | 149 | ······</span><span·class="n">Config</span><span·class="w"> |
| 150 | ·····</span><span·class="p"·data-group-id=" | 150 | ·····</span><span·class="p"·data-group-id="6388220066-9">)</span><span·class="p">.</span></code></pre><p>and·the·the·property·test·module·(in·this·example |
| 151 | <code·class="inline">ftp_simple_client_server.erl</code>)·as·almost·a·usual·property·testing·module·(More | 151 | <code·class="inline">ftp_simple_client_server.erl</code>)·as·almost·a·usual·property·testing·module·(More |
| 152 | examples·are·in·<a·href="ct_property_test_chapter.html">the·User's·Guide</a>):</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="3283766929-1">(</span><span·class="ss">ftp_simple_client_server</span><span·class="p"·data-group-id="3283766929-1">)</span><span·class="p">.</span><span·class="w"> | ||
| 153 | 152 | examples·are·in·<a·href="ct_property_test_chapter.html">the·User's·Guide</a>):</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="2209008717-1">(</span><span·class="ss">ft[·...·truncated·by·diffoscope;·len:·72,·SHA:·fb3888a11e7bf3f2828626832fa359b0a3e0a5b147a8efba144e453ece6f5afb·...·]">)</span><span·class="p">.</span><span·class="w"> | |
| 153 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="2209008717-2">(</span><span·class="p"·data-group-id="2209008717-3">[</span><span·class="ss">prop_ftp</span><span·class="p">/</span><span·class="mi">0</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p"·data-group-id="2209008717-3">]</span><span·class="p"·data-group-id="2209008717-2">)</span><span·class="p">.</span><span·class="w"> | ||
| 154 | </span><span·class="w"> | 154 | </span><span·class="w"> |
| 155 | </span><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id=" | 155 | </span><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id="2209008717-4">(</span><span·class="s">"common_test/include/ct_property_test.hrl"</span><span·class="p"·data-group-id="2209008717-4">)</span><span·class="p">.</span><span·class="w"> |
| 156 | </span><span·class="nf">prop_ftp</span><span·class="p"·data-group-id=" | 156 | </span><span·class="nf">prop_ftp</span><span·class="p"·data-group-id="2209008717-5">(</span><span·class="p"·data-group-id="2209008717-5">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 157 | ····</span><span·class="o">?</span><span·class="n">FORALL</span><span·class="p"·data-group-id=" | 157 | ····</span><span·class="o">?</span><span·class="n">FORALL</span><span·class="p"·data-group-id="2209008717-6">(</span><span·class="w">·</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span></code></pre> |
| 158 | ····</section> | 158 | ····</section> |
| 159 | </div> | 159 | </div> |
| 160 | ··<section·id="summary"·class="details-list"> | 160 | ··<section·id="summary"·class="details-list"> |
| 161 | ····<h1·class="section-heading"> | 161 | ····<h1·class="section-heading"> |
| 162 | ······<a·class="hover-link"·href="#summary"> | 162 | ······<a·class="hover-link"·href="#summary"> |
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| 842 | <code·class="inline">{fail,·Explanation}</code>.</p><p>If·support·is·found,·the·option·<code·class="inline">{property_test_tool,ToolModule}</code>·with·the | 842 | <code·class="inline">{fail,·Explanation}</code>.</p><p>If·support·is·found,·the·option·<code·class="inline">{property_test_tool,ToolModule}</code>·with·the |
| 843 | selected·tool·main·module·name·(<code·class="inline">eqc</code>,·<code·class="inline">proper</code>·or·<code·class="inline">triq</code>)·is·added·to·the·list | 843 | selected·tool·main·module·name·(<code·class="inline">eqc</code>,·<code·class="inline">proper</code>·or·<code·class="inline">triq</code>)·is·added·to·the·list |
| 844 | <code·class="inline">Config</code>·which·then·is·returned.</p><p>The·property·tests·are·assumed·to·be·in·a·subdirectory·named·<code·class="inline">property_test</code>. | 844 | <code·class="inline">Config</code>·which·then·is·returned.</p><p>The·property·tests·are·assumed·to·be·in·a·subdirectory·named·<code·class="inline">property_test</code>. |
| 845 | All·found·Erlang·files·in·that·directory·are·compiled·with·one·of·the·macros | 845 | All·found·Erlang·files·in·that·directory·are·compiled·with·one·of·the·macros |
| 846 | <code·class="inline">'EQC'</code>,·<code·class="inline">'PROPER'</code>·or·<code·class="inline">'TRIQ'</code>·set,·depending·on·which·tool·that·is·first | 846 | <code·class="inline">'EQC'</code>,·<code·class="inline">'PROPER'</code>·or·<code·class="inline">'TRIQ'</code>·set,·depending·on·which·tool·that·is·first |
| 847 | found.·This·could·make·parts·of·the·Erlang·property·tests·code·to·be·included·or | 847 | found.·This·could·make·parts·of·the·Erlang·property·tests·code·to·be·included·or |
| 848 | excluded·with·the·macro·directives·<code·class="inline">-ifdef(Macro).</code>·or·<code·class="inline">-ifndef(Macro).</code>.</p><p>The·file(s)·in·the·<code·class="inline">property_test</code>·subdirectory·could,·or·should,·include·the | 848 | excluded·with·the·macro·directives·<code·class="inline">-ifdef(Macro).</code>·or·<code·class="inline">-ifndef(Macro).</code>.</p><p>The·file(s)·in·the·<code·class="inline">property_test</code>·subdirectory·could,·or·should,·include·the |
| 849 | ct_property_test·include·file:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id=" | 849 | ct_property_test·include·file:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id="0718570455-1">(</span><span·class="s">"common_test/include/ct_property_test.hrl"</span><span·class="p"·data-group-id="0718570455-1">)</span><span·class="p">.</span></code></pre><p>This·included·file·will:</p><ul><li>Include·the·correct·tool's·include·file</li><li>Set·the·macro·<code·class="inline">'MOD_eqc'</code>·to·the·correct·module·name·for·the·selected·tool. |
| 850 | That·is,·the·macro·<code·class="inline">'MOD_eqc'</code>·is·set·to·either·<code·class="inline">eqc</code>,·<code·class="inline">proper</code>·or·<code·class="inline">triq</code>.</li></ul> | 850 | That·is,·the·macro·<code·class="inline">'MOD_eqc'</code>·is·set·to·either·<code·class="inline">eqc</code>,·<code·class="inline">proper</code>·or·<code·class="inline">triq</code>.</li></ul> |
| 851 | ··</section> | 851 | ··</section> |
| 852 | </section> | 852 | </section> |
| 853 | <section·class="detail"·id="num_calls/1"> | 853 | <section·class="detail"·id="num_calls/1"> |
| 854 | ··<div·class="detail-header"> | 854 | ··<div·class="detail-header"> |
| 855 | ····<a·href="#num_calls/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 855 | ····<a·href="#num_calls/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| Offset 947, 34 lines modified | Offset 947, 34 lines modified | ||
| 947 | ····························Config·::·<a·href="../../../../lib/stdlib-7.0/doc/html/proplists.html#t:proplist/0">proplists:proplist</a>(), | 947 | ····························Config·::·<a·href="../../../../lib/stdlib-7.0/doc/html/proplists.html#t:proplist/0">proplists:proplist</a>(), |
| 948 | ····························Options0·::·<a·href="../../../../lib/stdlib-7.0/doc/html/proplists.html#t:proplist/0">proplists:proplist</a>().</pre> | 948 | ····························Options0·::·<a·href="../../../../lib/stdlib-7.0/doc/html/proplists.html#t:proplist/0">proplists:proplist</a>().</pre> |
| 949 | ······</div> | 949 | ······</div> |
| 950 | <p>Presents·the·result·of·<em>stateful·(statem)·property·testing</em>·using·the·aggregate | 950 | <p>Presents·the·result·of·<em>stateful·(statem)·property·testing</em>·using·the·aggregate |
| 951 | function·in·PropEr,·QuickCheck·or·other·similar·property·testing·tool.</p><p>It·is·assumed·to·be·called·inside·the·property·called·by·<a·href="#quickcheck/2"><code·class="inline">quickcheck/2</code></a>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> | 951 | function·in·PropEr,·QuickCheck·or·other·similar·property·testing·tool.</p><p>It·is·assumed·to·be·called·inside·the·property·called·by·<a·href="#quickcheck/2"><code·class="inline">quickcheck/2</code></a>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> |
| 952 | </span><span·class="n">RunResult</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">run_parallel_commands</span><span·class="p"·data-group-id="2 | 952 | </span><span·class="n">RunResult</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">run_parallel_commands</span><span·class="p"·data-group-id="2421732874-1">(</span><span·class="o">?</span><span·class="n">MODULE</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Cmds</span><span·class="p"·data-group-id="2421732874-1">)</span><span·class="p">,</span><span·class="w"> |
| 953 | </span><span·class="nc">ct_property_test</span><span·class="p">:</span><span·class="nf">present_result</span><span·class="p"·data-group-id="2 | 953 | </span><span·class="nc">ct_property_test</span><span·class="p">:</span><span·class="nf">present_result</span><span·class="p"·data-group-id="2421732874-2">(</span><span·class="o">?</span><span·class="n">MODULE</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Cmds</span><span·class="p">,</span><span·class="w">·</span><span·class="n">RunResult</span><span·class="p">,</span><sp[·...·truncated·by·diffoscope;·len:·91,·SHA:·4a1bc46f5dc3915e60e429e86eb18e86d40ccee6e0997c993419117a85931bcd·...·]-2">)</span><span·class="w"> |
| 954 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span></code></pre><p>See·the·<a·href="ct_property_test_chapter.html#stateful1">User's·Guide</a>·for·an·example·of | 954 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span></code></pre><p>See·the·<a·href="ct_property_test_chapter.html#stateful1">User's·Guide</a>·for·an·example·of |
| 955 | the·usage·and·of·the·default·printout.</p><p>The·<code·class="inline">StatisticsSpec</code>·is·a·list·of·the·tuples:</p><ul><li><code·class="inline">{Title::string(),·CollectFun::fun/1}</code></li><li><code·class="inline">{Title::string(),·FrequencyFun::/0,·CollectFun::fun/1}</code></li></ul><p>Each·tuple·will·produce·one·table·in·the·order·of·their·places·in·the·list.</p><ul><li><p><code·class="inline">Title</code>·will·be·the·title·of·one·result·table</p></li><li><p><code·class="inline">CollectFun</code>·is·called·with·one·argument:·the·<code·class="inline">Cmds</code>.·It·should·return·a·list | 955 | the·usage·and·of·the·default·printout.</p><p>The·<code·class="inline">StatisticsSpec</code>·is·a·list·of·the·tuples:</p><ul><li><code·class="inline">{Title::string(),·CollectFun::fun/1}</code></li><li><code·class="inline">{Title::string(),·FrequencyFun::/0,·CollectFun::fun/1}</code></li></ul><p>Each·tuple·will·produce·one·table·in·the·order·of·their·places·in·the·list.</p><ul><li><p><code·class="inline">Title</code>·will·be·the·title·of·one·result·table</p></li><li><p><code·class="inline">CollectFun</code>·is·called·with·one·argument:·the·<code·class="inline">Cmds</code>.·It·should·return·a·list |
| 956 | of·the·values·to·be·counted.·The·following·pre-defined·functions·exist:</p><ul><li><a·href="#cmnd_names/1"><code·class="inline">ct_property_test:cmnd_names/1</code></a>·returns·a·list·of·commands·(function·calls) | 956 | of·the·values·to·be·counted.·The·following·pre-defined·functions·exist:</p><ul><li><a·href="#cmnd_names/1"><code·class="inline">ct_property_test:cmnd_names/1</code></a>·returns·a·list·of·commands·(function·calls) |
| 957 | generated·in·the·<code·class="inline">Cmnd</code>·sequence,·without·Module,·Arguments·and·other | 957 | generated·in·the·<code·class="inline">Cmnd</code>·sequence,·without·Module,·Arguments·and·other |
| 958 | details.</li><li><a·href="#num_calls/1"><code·class="inline">ct_property_test:num_calls/1</code></a>·returns·a·list·of·the·length·of·commands | 958 | details.</li><li><a·href="#num_calls/1"><code·class="inline">ct_property_test:num_calls/1</code></a>·returns·a·list·of·the·length·of·commands |
| 959 | lists</li><li><a·href="#sequential_parallel/1"><code·class="inline">ct_property_test:sequential_parallel/1</code></a>·returns·a·list·with·information | 959 | lists</li><li><a·href="#sequential_parallel/1"><code·class="inline">ct_property_test:sequential_parallel/1</code></a>·returns·a·list·with·information |
| 960 | about·sequential·and·parallel·parts·from·<code·class="inline">Tool:parallel_commands/1,2</code></li></ul></li><li><p><code·class="inline">FrequencyFun/0</code>·returns·a·fun/1·which·is·supposed·to·take·a·list·of·items·as | 960 | about·sequential·and·parallel·parts·from·<code·class="inline">Tool:parallel_commands/1,2</code></li></ul></li><li><p><code·class="inline">FrequencyFun/0</code>·returns·a·fun/1·which·is·supposed·to·take·a·list·of·items·as |
| 961 | input,·and·return·an·iolist·which·will·be·printed·as·the·table.·Per·default, | 961 | input,·and·return·an·iolist·which·will·be·printed·as·the·table.·Per·default, |
| 962 | the·number·of·each·item·is·counted·and·the·percentage·is·printed·for·each.·The | 962 | the·number·of·each·item·is·counted·and·the·percentage·is·printed·for·each.·The |
| 963 | list·[a,b,a,a,c]·could·for·example·return</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 963 | list·[a,b,a,a,c]·could·for·example·return</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="4574087902-1">[</span><span·class="s">"a·60%\n"</span><span·class="p">,</span><span·class="s">"b·20%\n"</span><span·class="p">,</span><span·class="s">"c·20%\n"</span><span·class="p"·data-group-id="4574087902-1">]</span></code></pre><p>which·will·be·printed·by·the·<code·class="inline">print_fun</code>.·The·default·<code·class="inline">print_fun</code>·will·print |
| 964 | it·as:</p><pre><code·class="text">a·60% | 964 | it·as:</p><pre><code·class="text">a·60% |
| 965 | b·20% | 965 | b·20% |
| 966 | c·20%</code></pre></li></ul><p>The·default·<code·class="inline">StatisticsSpec</code>·is:</p><ul><li><p>For·sequential·commands:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 966 | c·20%</code></pre></li></ul><p>The·default·<code·class="inline">StatisticsSpec</code>·is:</p><ul><li><p>For·sequential·commands:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="6275077917-1">[</span><span·class="p"·data-group-id="6275077917-2">{</span><span·class="s">"Function·calls"</span><span·class="p">,</span><span·class="w">·</span><span·class="k">fun</span><span·class="w">·</span><span·class="ss">cmnd_names</span>[·...·truncated·by·diffoscope;·len:·90,·SHA:·df869aafd7bd7b5a3c56cbf08ef5c8082d3360f1bac2308baf42f48056d82ba0·...·]-2">}</span><span·class="p">,</span><span·class="w"> |
| 967 | ·</span><span·class="p"·data-group-id=" | 967 | ·</span><span·class="p"·data-group-id="6275077917-3">{</span><span·class="s">"Length·of·command·sequences"</span><span·class="p">,</span><span·class="w">·</span><span·class="k">fun</span><span·class="w">·</span><span·class="ss">print_frequency_ranges</span><span·class="p">/</span><span·class="mi">0</span><span·class="p">,</span><span·class="w"> |
| 968 | ··················································</span><span·class="k">fun</span><span·class="w">·</span><span·class="ss">num_calls</span><span·class="p">/</span><span·class="mi">1</span><span·class="p"·data-group-id=" | 968 | ··················································</span><span·class="k">fun</span><span·class="w">·</span><span·class="ss">num_calls</span><span·class="p">/</span><span·class="mi">1</span><span·class="p"·data-group-id="6275077917-3">}</span><span·class="p"·data-group-id="6275077917-1">]</span></code></pre></li><li><p>For·parallel·commands:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="4928784628-1">[</span><span·class="p"·data-group-id[·...·truncated·by·diffoscope;·len:·322,·SHA:·d37013181714b7b0261cf883e4d2e5e25514b674245dbb3b87b047aa02dc925a·...·]-2">}</span><span·class="p">,</span><span·class="w"> |
| 969 | ·</span><span·class="p"·data-group-id=" | 969 | ·</span><span·class="p"·data-group-id="4928784628-3">{</span><span·class="s">"Function·calls"</span><span·class="p">,</span><span·class="w">·</span><span·class="k">fun</span><span·class="w">·</span><span·class="ss">cmnd_names</span><span·class="p">/</span><span·class="mi">1</span><spa[·...·truncated·by·diffoscope;·len:·37,·SHA:·364e79a03a854e05c566746a7f4a15a42a7f0530bda198696cbaf0a0e6a14d46·...·]-3">}</span><span·class="p">,</span><span·class="w"> |
| 970 | ·</span><span·class="p"·data-group-id=" | 970 | ·</span><span·class="p"·data-group-id="4928784628-4">{</span><span·class="s">"Length·of·command·sequences"</span><span·class="p">,</span><span·class="w">·</span><span·class="k">fun</span><span·class="w">·</span><span·class="ss">print_frequency_ranges</span><span·class="p">/</span><span·class="mi">0</span><span·class="p">,</span><span·class="w"> |
| 971 | ··················································</span><span·class="k">fun</span><span·class="w">·</span><span·class="ss">num_calls</span><span·class="p">/</span><span·class="mi">1</span><span·class="p"·data-group-id=" | 971 | ··················································</span><span·class="k">fun</span><span·class="w">·</span><span·class="ss">num_calls</span><span·class="p">/</span><span·class="mi">1</span><span·class="p"·data-group-id="4928784628-4">}</span><span·class="p"·data-group-id="4928784628-1">]</span></code></pre></li></ul> |
| 972 | ··</section> | 972 | ··</section> |
| 973 | </section> | 973 | </section> |
| 974 | <section·class="detail"·id="quickcheck/2"> | 974 | <section·class="detail"·id="quickcheck/2"> |
| 975 | ··<div·class="detail-header"> | 975 | ··<div·class="detail-header"> |
| 976 | ····<a·href="#quickcheck/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 976 | ····<a·href="#quickcheck/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 977 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 977 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
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| 1055 | ······<p·class="built-using"> | 1055 | ······<p·class="built-using"> |
| 1056 | ········Built·using | 1056 | ········Built·using |
| 1057 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1057 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1058 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1058 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1059 | ······</p> | 1059 | ······</p> |
| 1060 | <p>Copyright·©·1996-202 | 1060 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1061 | ····</footer> | 1061 | ····</footer> |
| 1062 | ··</div> | 1062 | ··</div> |
| 1063 | </main> | 1063 | </main> |
| 1064 | </div> | 1064 | </div> |
| 1065 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1065 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1066 | ··<script> | 1066 | ··<script> |
| 1067 | ··let·initialized·=·false; | 1067 | ··let·initialized·=·false; |
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| 143 | <p>The·<a·href="ct_property_test.html#">ct_property_test</a>·module·does·the·following:</p><ul><li>Compiles·the·files·with·property·tests·in·the·subdirectory·<code·class="inline">property_test</code></li><li>Tests·properties·in·those·files·using·the·first·found·Property·Testing·Tool.</li><li>Saves·the·results·-·that·is·the·printouts·-·in·the·usual·Common·Test·Log</li></ul><h2·id="introductory-example"·class="section-heading"> | 143 | <p>The·<a·href="ct_property_test.html#">ct_property_test</a>·module·does·the·following:</p><ul><li>Compiles·the·files·with·property·tests·in·the·subdirectory·<code·class="inline">property_test</code></li><li>Tests·properties·in·those·files·using·the·first·found·Property·Testing·Tool.</li><li>Saves·the·results·-·that·is·the·printouts·-·in·the·usual·Common·Test·Log</li></ul><h2·id="introductory-example"·class="section-heading"> |
| 144 | ··<a·href="#introductory-example"·class="hover-link"> | 144 | ··<a·href="#introductory-example"·class="hover-link"> |
| 145 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 145 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 146 | ··</a> | 146 | ··</a> |
| 147 | ··<span·class="text">Introductory·Example</span> | 147 | ··<span·class="text">Introductory·Example</span> |
| 148 | </h2> | 148 | </h2> |
| 149 | <p>Assume·that·we·want·to·test·the·lists:sort/1·function.</p><p>We·need·a·property·to·test·the·function.·In·normal·way,·we·create | 149 | <p>Assume·that·we·want·to·test·the·lists:sort/1·function.</p><p>We·need·a·property·to·test·the·function.·In·normal·way,·we·create |
| 150 | <code·class="inline">property_test/ct_prop.erl</code>·module·in·the·<code·class="inline">test</code>·directory·in·our·application:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="2 | 150 | <code·class="inline">property_test/ct_prop.erl</code>·module·in·the·<code·class="inline">test</code>·directory·in·our·application:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="2978744337-1">(</span><span·class="ss">ct_prop</span><span·class="p"·data-group-id="2978744337-1">)</span><span·class="p">.</span><span·class="w"> |
| 151 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="2 | 151 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="2978744337-2">(</span><span·class="p"·data-group-id="2978744337-3">[</span><span·class="ss">prop_sort</span><span·class="p">/</span><span·class="mi">0</span><span·class="p"·data-group-id="2978744337-3">]</span><span·class="p"·data-group-id="2978744337-2">)</span><span·class="p">.</span><span·class="w"> |
| 152 | </span><span·class="c1">%%%·This·will·include·the·.hrl·file·for·the·installed·testing·tool:</span><span·class="w"> | 152 | </span><span·class="c1">%%%·This·will·include·the·.hrl·file·for·the·installed·testing·tool:</span><span·class="w"> |
| 153 | </span><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id="2 | 153 | </span><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id="2978744337-4">(</span><span·class="s">"common_test/include/ct_property_test.hrl"</span><span·class="p"·data-group-id="2978744337-4">)</span><span·class="p">.</span><span·class="w"> |
| 154 | </span><span·class="c1">%%%·The·property·we·want·to·check:</span><span·class="w"> | 154 | </span><span·class="c1">%%%·The·property·we·want·to·check:</span><span·class="w"> |
| 155 | </span><span·class="c1">%%%···For·all·possibly·unsorted·lists,</span><span·class="w"> | 155 | </span><span·class="c1">%%%···For·all·possibly·unsorted·lists,</span><span·class="w"> |
| 156 | </span><span·class="c1">%%%···the·result·of·lists:sort/1·is·sorted.</span><span·class="w"> | 156 | </span><span·class="c1">%%%···the·result·of·lists:sort/1·is·sorted.</span><span·class="w"> |
| 157 | </span><span·class="nf">prop_sort</span><span·class="p"·data-group-id="2 | 157 | </span><span·class="nf">prop_sort</span><span·class="p"·data-group-id="2978744337-5">(</span><span·class="p"·data-group-id="2978744337-5">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 158 | ····</span><span·class="o">?</span><span·class="n">FORALL</span><span·class="p"·data-group-id="2 | 158 | ····</span><span·class="o">?</span><span·class="n">FORALL</span><span·class="p"·data-group-id="2978744337-6">(</span><span·class="n">UnSorted</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">list</span><span·class="p"·data-group-id="2978744337-7">(</span><span·class="p"·data-group-id="2978744337-7">)</span><span·class="p">,</span><span·class="w"> |
| 159 | ············</span><span·class="nf">is_sorted</span><span·class="p"·data-group-id="2 | 159 | ············</span><span·class="nf">is_sorted</span><span·class="p"·data-group-id="2978744337-8">(</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">sort</span><span·class="p"·data-group-id="2978744337-9">(</span><span·class="n">UnSorted</span><span·class="p"·data-group-id="2978744337-9">)</span><span·class="p"·d[·...·truncated·by·diffoscope;·len:·24,·SHA:·806e3e07563b42a02c4a19fb12451b203ee4df3c207976351d9972fa68dcb946·...·]-8">)</span><span·class="w"> |
| 160 | ···········</span><span·class="p"·data-group-id="2 | 160 | ···········</span><span·class="p"·data-group-id="2978744337-6">)</span><span·class="p">.</span><span·class="w"> |
| 161 | </span><span·class="c1">%%%·Function·to·check·that·a·list·is·sorted:</span><span·class="w"> | 161 | </span><span·class="c1">%%%·Function·to·check·that·a·list·is·sorted:</span><span·class="w"> |
| 162 | </span><span·class="nf">is_sorted</span><span·class="p"·data-group-id="2 | 162 | </span><span·class="nf">is_sorted</span><span·class="p"·data-group-id="2978744337-10">(</span><span·class="p"·data-group-id="2978744337-11">[</span><span·class="p"·data-group-id="2978744337-11">]</span><span·class="p"·data-group-id="2978744337-10">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 163 | ····</span><span·class="ss">true</span><span·class="p">;</span><span·class="w"> | 163 | ····</span><span·class="ss">true</span><span·class="p">;</span><span·class="w"> |
| 164 | </span><span·class="nf">is_sorted</span><span·class="p"·data-group-id="2 | 164 | </span><span·class="nf">is_sorted</span><span·class="p"·data-group-id="2978744337-12">(</span><span·class="p"·data-group-id="2978744337-13">[</span><span·class="p">_</span><span·class="p"·data-group-id="2978744337-13">]</span><span·class="p"·data-group-id="2978744337-12">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 165 | ····</span><span·class="ss">true</span><span·class="p">;</span><span·class="w"> | 165 | ····</span><span·class="ss">true</span><span·class="p">;</span><span·class="w"> |
| 166 | </span><span·class="nf">is_sorted</span><span·class="p"·data-group-id="2 | 166 | </span><span·class="nf">is_sorted</span><span·class="p"·data-group-id="2978744337-14">(</span><span·class="p"·data-group-id="2978744337-15">[</span><span·class="n">H1</span><span·class="p">,</span><span·class="n">H2</span><span·class="p">|</span><span·class="n">SortedTail</span><span·class="p"·data-group-id="2978744337-15">]</[·...·truncated·by·diffoscope;·len:·46,·SHA:·e3dc0fd1e57b2367f77c9c7a09245333c594ac00de06a9a7c88471cfbd328dd9·...·]-14">)</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><span·class="n">H1</span><span·class="w">·</span><span·class="o">=<</span><span·class="w">·</span><span·class="n">H2</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 167 | ····</span><span·class="nf">is_sorted</span><span·class="p"·data-group-id="2 | 167 | ····</span><span·class="nf">is_sorted</span><span·class="p"·data-group-id="2978744337-16">(</span><span·class="p"·data-group-id="2978744337-17">[</span><span·class="n">H2</span><span·class="p">|</span><span·class="n">SortedTail</span><span·class="p"·data-group-id="2978744337-17">]</span><span·class="p"·data-group-id="2978744337-16">)</span><span·class="p">;</span><span·class="w"> |
| 168 | </span><span·class="nf">is_sorted</span><span·class="p"·data-group-id="2 | 168 | </span><span·class="nf">is_sorted</span><span·class="p"·data-group-id="2978744337-18">(</span><span·class="p">_</span><span·class="p"·data-group-id="2978744337-18">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 169 | ····</span><span·class="ss">false</span><span·class="p">.</span></code></pre><p>We·also·need·a·CommonTest·test·suite:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 169 | ····</span><span·class="ss">false</span><span·class="p">.</span></code></pre><p>We·also·need·a·CommonTest·test·suite:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="3052817484-1">(</span><span·class="ss">ct_property_test_SUITE</span><span·class="p"·data-group-id="3052817484-1">)</span><span·class="p">.</span><span·class="w"> |
| 170 | </span><span·class="p">-</span><span·class="na">compile</span><span·class="p"·data-group-id=" | 170 | </span><span·class="p">-</span><span·class="na">compile</span><span·class="p"·data-group-id="3052817484-2">(</span><span·class="ss">export_all</span><span·class="p"·data-group-id="3052817484-2">)</span><span·class="p">.</span><span·class="w">·</span><span·class="c1">%·Only·in·tests!</span><span·class="w"> |
| 171 | </span><span·class="w"> | 171 | </span><span·class="w"> |
| 172 | </span><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id=" | 172 | </span><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id="3052817484-3">(</span><span·class="s">"common_test/include/ct.hrl"</span><span·class="p"·data-group-id="3052817484-3">)</span><span·class="p">.</span><span·class="w"> |
| 173 | </span><span·class="nf">all</span><span·class="p"·data-group-id=" | 173 | </span><span·class="nf">all</span><span·class="p"·data-group-id="3052817484-4">(</span><span·class="p"·data-group-id="3052817484-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="p"·data-group-id="3052817484-5">[</span><span·class="ss">prop_sort</span><span·class="w"> |
| 174 | ·········</span><span·class="p"·data-group-id=" | 174 | ·········</span><span·class="p"·data-group-id="3052817484-5">]</span><span·class="p">.</span><span·class="w"> |
| 175 | </span><span·class="c1">%%%·First·prepare·Config·and·compile·the·property·tests·for·the·found·tool:</span><span·class="w"> | 175 | </span><span·class="c1">%%%·First·prepare·Config·and·compile·the·property·tests·for·the·found·tool:</span><span·class="w"> |
| 176 | </span><span·class="nf">init_per_suite</span><span·class="p"·data-group-id=" | 176 | </span><span·class="nf">init_per_suite</span><span·class="p"·data-group-id="3052817484-6">(</span><span·class="n">Config</span><span·class="p"·data-group-id="3052817484-6">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 177 | ····</span><span·class="nc">ct_property_test</span><span·class="p">:</span><span·class="nf">init_per_suite</span><span·class="p"·data-group-id=" | 177 | ····</span><span·class="nc">ct_property_test</span><span·class="p">:</span><span·class="nf">init_per_suite</span><span·class="p"·data-group-id="3052817484-7">(</span><span·class="n">Config</span><span·class="p"·data-group-id="3052817484-7">)</span><span·class="p">.</span><span·class="w"> |
| 178 | </span><span·class="nf">end_per_suite</span><span·class="p"·data-group-id=" | 178 | </span><span·class="nf">end_per_suite</span><span·class="p"·data-group-id="3052817484-8">(</span><span·class="n">Config</span><span·class="p"·data-group-id="3052817484-8">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 179 | ····</span><span·class="n">Config</span><span·class="p">.</span><span·class="w"> | 179 | ····</span><span·class="n">Config</span><span·class="p">.</span><span·class="w"> |
| 180 | </span><span·class="c1">%%%================================================================</span><span·class="w"> | 180 | </span><span·class="c1">%%%================================================================</span><span·class="w"> |
| 181 | </span><span·class="c1">%%%·Test·suites</span><span·class="w"> | 181 | </span><span·class="c1">%%%·Test·suites</span><span·class="w"> |
| 182 | </span><span·class="c1">%%%</span><span·class="w"> | 182 | </span><span·class="c1">%%%</span><span·class="w"> |
| 183 | </span><span·class="nf">prop_sort</span><span·class="p"·data-group-id=" | 183 | </span><span·class="nf">prop_sort</span><span·class="p"·data-group-id="3052817484-9">(</span><span·class="n">Config</span><span·class="p"·data-group-id="3052817484-9">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 184 | ····</span><span·class="nc">ct_property_test</span><span·class="p">:</span><span·class="nf">quickcheck</span><span·class="p"·data-group-id=" | 184 | ····</span><span·class="nc">ct_property_test</span><span·class="p">:</span><span·class="nf">quickcheck</span><span·class="p"·data-group-id="3052817484-10">(</span><span·class="w"> |
| 185 | ······</span><span·class="nc">ct_prop</span><span·class="p">:</span><span·class="nf">prop_sort</span><span·class="p"·data-group-id=" | 185 | ······</span><span·class="nc">ct_prop</span><span·class="p">:</span><span·class="nf">prop_sort</span><span·class="p"·data-group-id="3052817484-11">(</span><span·class="p"·data-group-id="3052817484-11">)</span><span·class="p">,</span><span·class="w"> |
| 186 | ······</span><span·class="n">Config</span><span·class="w"> | 186 | ······</span><span·class="n">Config</span><span·class="w"> |
| 187 | ·····</span><span·class="p"·data-group-id=" | 187 | ·····</span><span·class="p"·data-group-id="3052817484-10">)</span><span·class="p">.</span></code></pre><p>We·run·it·as·usual,·for·example·with·ct_run·in·the·OS·shell:</p><pre><code·class="text">..../test$·ct_run·-suite·ct_property_test_SUITE |
| 188 | ..... | 188 | ..... |
| 189 | Common·Test:·Running·make·in·test·directories... | 189 | Common·Test:·Running·make·in·test·directories... |
| 190 | TEST·INFO:·1·test(s),·1·case(s)·in·1·suite(s) | 190 | TEST·INFO:·1·test(s),·1·case(s)·in·1·suite(s) |
| 191 | Testing·lib.common_test.ct_property_test_SUITE:·Starting·test,·1·test·cases | 191 | Testing·lib.common_test.ct_property_test_SUITE:·Starting·test,·1·test·cases |
| Offset 217, 21 lines modified | Offset 217, 21 lines modified | ||
| 217 | ....</code></pre><p><a·href=""·id="stateful1"></a></p><h2·id="a-stateful-testing-example"·class="section-heading"> | 217 | ....</code></pre><p><a·href=""·id="stateful1"></a></p><h2·id="a-stateful-testing-example"·class="section-heading"> |
| 218 | ··<a·href="#a-stateful-testing-example"·class="hover-link"> | 218 | ··<a·href="#a-stateful-testing-example"·class="hover-link"> |
| 219 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 219 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 220 | ··</a> | 220 | ··</a> |
| 221 | ··<span·class="text">A·stateful·testing·example</span> | 221 | ··<span·class="text">A·stateful·testing·example</span> |
| 222 | </h2> | 222 | </h2> |
| 223 | <p>Assume·a·test·that·generates·some·parallel·stateful·commands,·and·runs·300 | 223 | <p>Assume·a·test·that·generates·some·parallel·stateful·commands,·and·runs·300 |
| 224 | tests:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">prop_parallel</span><span·class="p"·data-group-id="0 | 224 | tests:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">prop_parallel</span><span·class="p"·data-group-id="2003883479-1">(</span><span·class="n">Config</span><span·class="p"·data-group-id="2003883479-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 225 | ····</span><span·class="nf">numtests</span><span·class="p"·data-group-id="0 | 225 | ····</span><span·class="nf">numtests</span><span·class="p"·data-group-id="2003883479-2">(</span><span·class="mi">300</span><span·class="p">,</span><span·class="w"> |
| 226 | ·············</span><span·class="o">?</span><span·class="n">FORALL</span><span·class="p"·data-group-id="0 | 226 | ·············</span><span·class="o">?</span><span·class="n">FORALL</span><span·class="p"·data-group-id="2003883479-3">(</span><span·class="n">Cmds</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">parallel_commands</span><span·class="p"·data-group-id="2003883479-4">(</span><span·class="o">?</span><span·class="n">MODULE</span><span·class=[·...·truncated·by·diffoscope;·len:·29,·SHA:·7ea2ca3ea47f43258018cf4a3f5e85d6c031c1dd45056b6e39117e3ad4724e36·...·]-4">)</span><span·class="p">,</span><span·class="w"> |
| 227 | ·····················</span><span·class="k">begin</span><span·class="w"> | 227 | ·····················</span><span·class="k">begin</span><span·class="w"> |
| 228 | ·························</span><span·class="n">RunResult</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">run_parallel_commands</span><span·class="p"·data-group-id="0 | 228 | ·························</span><span·class="n">RunResult</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">run_parallel_commands</span><span·class="p"·data-group-id="2003883479-5">(</span><span·class="o">?</span><span·class="n">MODULE</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Cmds</span><span·class="p"·data-group-id="2003883479-5">)</span><span·class="p">,</span><span·class="w"> |
| 229 | ·························</span><span·class="nc">ct_property_test</span><span·class="p">:</span><span·class="nf">present_result</span><span·class="p"·data-group-id="0 | 229 | ·························</span><span·class="nc">ct_property_test</span><span·class="p">:</span><span·class="nf">present_result</span><span·class="p"·data-group-id="2003883479-6">(</span><span·class="o">?</span><span·class="n">MODULE</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Cmds</span><span·class="p">,</span><span·class="w">·</span><span·class="n">RunResult</span><span·class="p">,</span><s[·...·truncated·by·diffoscope;·len:·92,·SHA:·2f2d1095792c8b88f5ed1a8e62c4485a7e78b00d50936c0ab64f63943ccdddd8·...·]-6">)</span><span·class="w"> |
| 230 | ·····················</span><span·class="k">end</span><span·class="p"·data-group-id="0 | 230 | ·····················</span><span·class="k">end</span><span·class="p"·data-group-id="2003883479-3">)</span><span·class="p"·data-group-id="2003883479-2">)</span><span·class="p">.</span></code></pre><p>The·<a·href="ct_property_test.html#present_result/4"><code·class="inline">ct_property_test:present_result/4</code></a>·is·a·help·function·for·printing·some |
| 231 | statistics·in·the·CommonTest·log·file.</p><p>Our·example·test·could·for·example·be·a·simple·test·of·an·ftp·server,·where·we | 231 | statistics·in·the·CommonTest·log·file.</p><p>Our·example·test·could·for·example·be·a·simple·test·of·an·ftp·server,·where·we |
| 232 | perform·get,·put·and·delete·requests,·some·of·them·in·parallel.·Per·default,·the | 232 | perform·get,·put·and·delete·requests,·some·of·them·in·parallel.·Per·default,·the |
| 233 | result·has·three·sections:</p><pre><code·class="text">***·User·2019-12-11·13:28:17.504·*** | 233 | result·has·three·sections:</p><pre><code·class="text">***·User·2019-12-11·13:28:17.504·*** |
| 234 | Distribution·sequential/parallel | 234 | Distribution·sequential/parallel |
| 235 | ·57.7%·sequential | 235 | ·57.7%·sequential |
| Offset 326, 15 lines modified | Offset 326, 15 lines modified | ||
| 326 | ······<p·class="built-using"> | 326 | ······<p·class="built-using"> |
| 327 | ········Built·using | 327 | ········Built·using |
| 328 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 328 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 329 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 329 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 330 | ······</p> | 330 | ······</p> |
| 331 | <p>Copyright·©·1996-202 | 331 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 332 | ····</footer> | 332 | ····</footer> |
| 333 | ··</div> | 333 | ··</div> |
| 334 | </main> | 334 | </main> |
| 335 | </div> | 335 | </div> |
| 336 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 336 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 337 | ··<script> | 337 | ··<script> |
| 338 | ··let·initialized·=·false; | 338 | ··let·initialized·=·false; |
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| 553 | ······<p·class="built-using"> | 553 | ······<p·class="built-using"> |
| 554 | ········Built·using | 554 | ········Built·using |
| 555 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 555 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 556 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 556 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 557 | ······</p> | 557 | ······</p> |
| 558 | <p>Copyright·©·1996-202 | 558 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 559 | ····</footer> | 559 | ····</footer> |
| 560 | ··</div> | 560 | ··</div> |
| 561 | </main> | 561 | </main> |
| 562 | </div> | 562 | </div> |
| 563 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 563 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 564 | ··<script> | 564 | ··<script> |
| 565 | ··let·initialized·=·false; | 565 | ··let·initialized·=·false; |
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| 247 | ··[-keep_logs·all·|·NLogs]</code></pre><h2·id="run-common-test-in-interactive-mode"·class="section-heading"> | 247 | ··[-keep_logs·all·|·NLogs]</code></pre><h2·id="run-common-test-in-interactive-mode"·class="section-heading"> |
| 248 | ··<a·href="#run-common-test-in-interactive-mode"·class="hover-link"> | 248 | ··<a·href="#run-common-test-in-interactive-mode"·class="hover-link"> |
| 249 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 249 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 250 | ··</a> | 250 | ··</a> |
| 251 | ··<span·class="text">Run·Common·Test·in·Interactive·Mode</span> | 251 | ··<span·class="text">Run·Common·Test·in·Interactive·Mode</span> |
| 252 | </h2> | 252 | </h2> |
| 253 | <pre><code·class="makeup·erlang"·translate="no"><span·class="w">·</span><span·class="ss">ct_run</span><span·class="w">·</span><span·class="o">-</span><span·class="ss">shell</span><span·class="w"> | 253 | <pre><code·class="makeup·erlang"·translate="no"><span·class="w">·</span><span·class="ss">ct_run</span><span·class="w">·</span><span·class="o">-</span><span·class="ss">shell</span><span·class="w"> |
| 254 | ··</span><span·class="p"·data-group-id=" | 254 | ··</span><span·class="p"·data-group-id="8416791548-1">[</span><span·class="o">-</span><span·class="ss">config</span><span·class="w">·</span><span·class="n">ConfigFile1</span><span·class="w">·</span><span·class="n">ConfigFile2</span><span·class="w">·</span><span·class="p">.</span><span·class="p">[·...·truncated·by·diffoscope;·len:·131,·SHA:·3a37420ea2b1dabba913b94d9415d61a0329e5d3ca086b4b8b1d2f2f1b2177a2·...·]-1">]</span><span·class="w"> |
| 255 | ··</span><span·class="p"·data-group-id=" | 255 | ··</span><span·class="p"·data-group-id="8416791548-2">[</span><span·class="o">-</span><span·class="ss">userconfig</span><span·class="w">·</span><span·class="n">CallbackModule1</span><span·class="w">·</span><span·class="n">ConfigString1</span><span·class="w">·</span><span·class="ow">and</span><span·class="w">·</span><span·class="n">CallbackModule2</span><span·class="w"> |
| 256 | ···</span><span·class="n">ConfigString2</span><span·class="w">·</span><span·class="ow">and</span><span·class="w">·</span><span·class="p">.</span><span·class="p">.</span><span·class="w">·</span><span·class="ow">and</span><span·class="w">·</span><span·class="n">CallbackModuleN</span><span·class="w">·</span><span·class="n">ConfigStringN</span><span·class="p"·data-group-id=" | 256 | ···</span><span·class="n">ConfigString2</span><span·class="w">·</span><span·class="ow">and</span><span·class="w">·</span><span·class="p">.</span><span·class="p">.</span><span·class="w">·</span><span·class="ow">and</span><span·class="w">·</span><span·class="n">CallbackModuleN</span><span·class="w">·</span><span·class="n">ConfigStringN</span><span·class="p"·data-group-id="8416791548-2">]</span><span·class="w"> |
| 257 | ··</span><span·class="p"·data-group-id=" | 257 | ··</span><span·class="p"·data-group-id="8416791548-3">[</span><span·class="o">-</span><span·class="ss">decrypt_key</span><span·class="w">·</span><span·class="n">Key</span><span·class="p"·data-group-id="8416791548-3">]</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span>[·...·truncated·by·diffoscope;·len:·208,·SHA:·67dd8f303cfd2353deb20e17c7fe08b139a15640c3bf6f310992122a1530ce6b·...·]-4">]</span></code></pre><h2·id="start-a-common-test-master-node"·class="section-heading"> |
| 258 | ··<a·href="#start-a-common-test-master-node"·class="hover-link"> | 258 | ··<a·href="#start-a-common-test-master-node"·class="hover-link"> |
| 259 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 259 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 260 | ··</a> | 260 | ··</a> |
| 261 | ··<span·class="text">Start·a·Common·Test·Master·Node</span> | 261 | ··<span·class="text">Start·a·Common·Test·Master·Node</span> |
| 262 | </h2> | 262 | </h2> |
| 263 | <pre><code·class="text">·ct_run·-ctmaster</code></pre><h2·id="see-also"·class="section-heading"> | 263 | <pre><code·class="text">·ct_run·-ctmaster</code></pre><h2·id="see-also"·class="section-heading"> |
| 264 | ··<a·href="#see-also"·class="hover-link"> | 264 | ··<a·href="#see-also"·class="hover-link"> |
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| 305 | ······<p·class="built-using"> | 305 | ······<p·class="built-using"> |
| 306 | ········Built·using | 306 | ········Built·using |
| 307 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 307 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 308 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 308 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 309 | ······</p> | 309 | ······</p> |
| 310 | <p>Copyright·©·1996-202 | 310 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 311 | ····</footer> | 311 | ····</footer> |
| 312 | ··</div> | 312 | ··</div> |
| 313 | </main> | 313 | </main> |
| 314 | </div> | 314 | </div> |
| 315 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 315 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 316 | ··<script> | 316 | ··<script> |
| 317 | ··let·initialized·=·false; | 317 | ··let·initialized·=·false; |
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| 549 | ······<p·class="built-using"> | 549 | ······<p·class="built-using"> |
| 550 | ········Built·using | 550 | ········Built·using |
| 551 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 551 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 552 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 552 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 553 | ······</p> | 553 | ······</p> |
| 554 | <p>Copyright·©·1996-202 | 554 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 555 | ····</footer> | 555 | ····</footer> |
| 556 | ··</div> | 556 | ··</div> |
| 557 | </main> | 557 | </main> |
| 558 | </div> | 558 | </div> |
| 559 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 559 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 560 | ··<script> | 560 | ··<script> |
| 561 | ··let·initialized·=·false; | 561 | ··let·initialized·=·false; |
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| 146 | configuration·files·have·default·values·set·by·the·<code·class="inline">SNMP</code>·application.·These | 146 | configuration·files·have·default·values·set·by·the·<code·class="inline">SNMP</code>·application.·These |
| 147 | values·can·be·overridden·by·suppling·a·list·of·valid·configuration·values·or·a | 147 | values·can·be·overridden·by·suppling·a·list·of·valid·configuration·values·or·a |
| 148 | file·located·in·the·test·suites·data·directory,·which·can·produce·a·list·of | 148 | file·located·in·the·test·suites·data·directory,·which·can·produce·a·list·of |
| 149 | valid·configuration·values·if·you·apply·function·<a·href="../../../../lib/kernel-10.3/doc/html/file.html#consult/1"><code·class="inline">file:consult/1</code></a>·to·the·file.</p><ul><li><p><strong><code·class="inline">{agent_contexts,·[term()]·|·{data_dir_file,·rel_path()}}</code></strong>·-·Optional.</p></li><li><p><strong><code·class="inline">{agent_community,·[term()]·|·{data_dir_file,·rel_path()}}</code></strong>·-·Optional.</p></li><li><p><strong><code·class="inline">{agent_sysinfo,·[term()]·|·{data_dir_file,·rel_path()}}</code></strong>·-·Optional.</p></li><li><p><strong><code·class="inline">{agent_vacm,·[term()]·|·{data_dir_file,·rel_path()}}</code></strong>·-·Optional.</p></li><li><p><strong><code·class="inline">{agent_usm,·[term()]·|·{data_dir_file,·rel_path()}}</code></strong>·-·Optional.</p></li><li><p><strong><code·class="inline">{agent_notify_def,·[term()]·|·{data_dir_file,·rel_path()}}</code></strong>·-·Optional.</p></li><li><p><strong><code·class="inline">{agent_target_address_def,·[term()]·|·{data_dir_file,·rel_path()}}</code></strong>·- | 149 | valid·configuration·values·if·you·apply·function·<a·href="../../../../lib/kernel-10.3/doc/html/file.html#consult/1"><code·class="inline">file:consult/1</code></a>·to·the·file.</p><ul><li><p><strong><code·class="inline">{agent_contexts,·[term()]·|·{data_dir_file,·rel_path()}}</code></strong>·-·Optional.</p></li><li><p><strong><code·class="inline">{agent_community,·[term()]·|·{data_dir_file,·rel_path()}}</code></strong>·-·Optional.</p></li><li><p><strong><code·class="inline">{agent_sysinfo,·[term()]·|·{data_dir_file,·rel_path()}}</code></strong>·-·Optional.</p></li><li><p><strong><code·class="inline">{agent_vacm,·[term()]·|·{data_dir_file,·rel_path()}}</code></strong>·-·Optional.</p></li><li><p><strong><code·class="inline">{agent_usm,·[term()]·|·{data_dir_file,·rel_path()}}</code></strong>·-·Optional.</p></li><li><p><strong><code·class="inline">{agent_notify_def,·[term()]·|·{data_dir_file,·rel_path()}}</code></strong>·-·Optional.</p></li><li><p><strong><code·class="inline">{agent_target_address_def,·[term()]·|·{data_dir_file,·rel_path()}}</code></strong>·- |
| 150 | Optional.</p></li><li><p><strong><code·class="inline">{agent_target_param_def,·[term()]·|·{data_dir_file,·rel_path()}}</code></strong>·- | 150 | Optional.</p></li><li><p><strong><code·class="inline">{agent_target_param_def,·[term()]·|·{data_dir_file,·rel_path()}}</code></strong>·- |
| 151 | Optional.</p></li></ul><p>Parameter·<code·class="inline">MgrAgentConfName</code>·in·the·functions·is·to·be·a·name·you·allocate·in | 151 | Optional.</p></li></ul><p>Parameter·<code·class="inline">MgrAgentConfName</code>·in·the·functions·is·to·be·a·name·you·allocate·in |
| 152 | your·test·suite·using·a·<code·class="inline">require</code>·statement.·Example·(where | 152 | your·test·suite·using·a·<code·class="inline">require</code>·statement.·Example·(where |
| 153 | <code·class="inline">MgrAgentConfName·=·snmp_mgr_agent</code>):</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">suite</span><span·class="p"·data-group-id=" | 153 | <code·class="inline">MgrAgentConfName·=·snmp_mgr_agent</code>):</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">suite</span><span·class="p"·data-group-id="8003001401-1">(</span><span·class="p"·data-group-id="8003001401-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="p"·data-group-id="8003001401-2">[</span><span·class="p"·data-group-id="8003001401-3">{</span[·...·truncated·by·diffoscope;·len:·683,·SHA:·8d2efab469a6f6093ba04e72990b6b647d0742e5c8b6f9101e6e210d8fbbd64c·...·]-1">)</span><span·class="p">.</span></code></pre><p>Notice·that·USM·users·are·needed·for·SNMPv3·configuration·and·are·not·to·be |
| 154 | confused·with·users.</p><p>SNMP·traps,·inform,·and·report·messages·are·handled·by·the·user·callback·module. | 154 | confused·with·users.</p><p>SNMP·traps,·inform,·and·report·messages·are·handled·by·the·user·callback·module. |
| 155 | For·details,·see·the·<a·href="../../../../lib/snmp-5.19/doc/html/index.html"><code·class="inline">SNMP</code></a>·application.</p><p>It·is·recommended·to·use·the·<code·class="inline">.hrl</code>·files·created·by·the·Erlang/OTP·MIB·compiler | 155 | For·details,·see·the·<a·href="../../../../lib/snmp-5.19/doc/html/index.html"><code·class="inline">SNMP</code></a>·application.</p><p>It·is·recommended·to·use·the·<code·class="inline">.hrl</code>·files·created·by·the·Erlang/OTP·MIB·compiler |
| 156 | to·define·the·Object·Identifiers·(OIDs).·For·example,·to·get·the·Erlang·node | 156 | to·define·the·Object·Identifiers·(OIDs).·For·example,·to·get·the·Erlang·node |
| 157 | name·from·<code·class="inline">erlNodeTable</code>·in·the·OTP-MIB:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Oid</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">?</span><span·class="ss">erlNodeEntry</span><span·class="w">·</span><span·class="o">++</span><span·class="w">·</span><span·class="p"·data-group-id=" | 157 | name·from·<code·class="inline">erlNodeTable</code>·in·the·OTP-MIB:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Oid</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">?</span><span·class="ss">erlNodeEntry</span><span·class="w">·</span><span·class="o">++</span><span·class="w">·</span><span·class="p"·data-group-id="7738047463-1">[</span><span·class="o">?</span><span·class="ss">erlNodeName</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">1</span><span·class="p"·data-group-id="7738047463-1">]</span></code></pre><p>Furthermore,·values·can·be·set·for·<code·class="inline">SNMP</code>·application·configuration·parameters, |
| 158 | <code·class="inline">config</code>,·<code·class="inline">server</code>,·<code·class="inline">net_if</code>,·and·so·on·(for·a·list·of·valid·parameters·and | 158 | <code·class="inline">config</code>,·<code·class="inline">server</code>,·<code·class="inline">net_if</code>,·and·so·on·(for·a·list·of·valid·parameters·and |
| 159 | types,·see·the·<a·href="../../../../lib/snmp-5.19/doc/html/index.html"><code·class="inline">User's·Guide·for·the·SNMP·application</code></a>). | 159 | types,·see·the·<a·href="../../../../lib/snmp-5.19/doc/html/index.html"><code·class="inline">User's·Guide·for·the·SNMP·application</code></a>). |
| 160 | This·is·done·by·defining·a·configuration·data·variable·on·the·following·form:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="9627197338-1">{</span><span·class="ss">snmp_app</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9627197338-2">[</span><span·class="p"·data-group-id="9627197338-3">{</span><span·class="ss">manager</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9627197338-4">[</span><span·class="nf">snmp_app_manager_params</span><span·class="p"·data-group-id="9627197338-5">(</span><span·class="p"·data-group-id="9627197338-5">)</span><span·class="p"·data-group-id="9627197338-4">]</span><span·class="p"·data-group-id="9627197338-3">}</span><span·class="p">,</span><span·class="w"> | ||
| 161 | 160 | This·is·done·by·defining·a·configuration·data·variable·on·the·following·form:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="9082625925-1">{</span><span·class="ss">snmp_app</span><span·class="p">,</span><span·class="w">·<[·...·truncated·by·diffoscope;·len:·543,·SHA:·ab8bf4e9d2f1961dbbfe610ced923681bea93b6f0de739c8b6a36700e0967e22·...·] | |
| 161 | ············</span><span·class="p"·data-group-id="9082625925-6">{</span><span·class="ss">agent</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9082625925-7">[</span><span·class="nf">snmp_app_agent_params</span><span·class="p"·data-group-id="9082625925-8">(</span><span·class="p"·data-group-id="9082625925-8">)</span><span·class="p"·data-group-id="9082625925-7">]</span><span·class="p"·data-group-id="9082625925-6">}</span><span·class="p"·data-group-id="9082625925-2">]</span><span·class="p"·data-group-id="9082625925-1">}</span><span·class="p">.</span></code></pre><p>A·name·for·the·data·must·be·allocated·in·the·suite·using·<code·class="inline">require</code>·(see·the | ||
| 162 | example·above).·Pass·this·name·as·argument·<code·class="inline">SnmpAppConfName</code>·to | 162 | example·above).·Pass·this·name·as·argument·<code·class="inline">SnmpAppConfName</code>·to |
| 163 | <a·href="#start/3"><code·class="inline">ct_snmp:start/3</code></a>.·<code·class="inline">ct_snmp</code>·specifies·default·values·for·some | 163 | <a·href="#start/3"><code·class="inline">ct_snmp:start/3</code></a>.·<code·class="inline">ct_snmp</code>·specifies·default·values·for·some |
| 164 | <code·class="inline">SNMP</code>·application·configuration·parameters·(such·as·<code·class="inline">{verbosity,trace}</code>·for | 164 | <code·class="inline">SNMP</code>·application·configuration·parameters·(such·as·<code·class="inline">{verbosity,trace}</code>·for |
| 165 | parameter·<code·class="inline">config</code>).·This·set·of·defaults·is·merged·with·the·parameters | 165 | parameter·<code·class="inline">config</code>).·This·set·of·defaults·is·merged·with·the·parameters |
| 166 | specified·by·the·user.·The·user·values·override·<code·class="inline">ct_snmp</code>·defaults.</p> | 166 | specified·by·the·user.·The·user·values·override·<code·class="inline">ct_snmp</code>·defaults.</p> |
| 167 | ····</section> | 167 | ····</section> |
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| 1840 | ······<p·class="built-using"> | 1840 | ······<p·class="built-using"> |
| 1841 | ········Built·using | 1841 | ········Built·using |
| 1842 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1842 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1843 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1843 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1844 | ······</p> | 1844 | ······</p> |
| 1845 | <p>Copyright·©·1996-202 | 1845 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1846 | ····</footer> | 1846 | ····</footer> |
| 1847 | ··</div> | 1847 | ··</div> |
| 1848 | </main> | 1848 | </main> |
| 1849 | </div> | 1849 | </div> |
| 1850 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1850 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1851 | ··<script> | 1851 | ··<script> |
| 1852 | ··let·initialized·=·false; | 1852 | ··let·initialized·=·false; |
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| 129 | ····<section·id="moduledoc"> | 129 | ····<section·id="moduledoc"> |
| 130 | <p>SSH/SFTP·client·module.</p><p>This·module·uses·application·<code·class="inline">SSH</code>,·which·provides·detailed·information·about, | 130 | <p>SSH/SFTP·client·module.</p><p>This·module·uses·application·<code·class="inline">SSH</code>,·which·provides·detailed·information·about, |
| 131 | for·example,·functions,·types,·and·options.</p><p>Argument·<code·class="inline">Server</code>·in·the·SFTP·functions·is·only·to·be·used·for·SFTP·sessions | 131 | for·example,·functions,·types,·and·options.</p><p>Argument·<code·class="inline">Server</code>·in·the·SFTP·functions·is·only·to·be·used·for·SFTP·sessions |
| 132 | that·have·been·started·on·existing·SSH·connections·(that·is,·when·the·original | 132 | that·have·been·started·on·existing·SSH·connections·(that·is,·when·the·original |
| 133 | connection·type·is·<code·class="inline">ssh</code>).·Whenever·the·connection·type·is·<code·class="inline">sftp</code>,·use·the·SSH | 133 | connection·type·is·<code·class="inline">ssh</code>).·Whenever·the·connection·type·is·<code·class="inline">sftp</code>,·use·the·SSH |
| 134 | connection·reference·only.</p><p>The·following·options·are·valid·for·specifying·an·SSH/SFTP·connection·(that·is, | 134 | connection·reference·only.</p><p>The·following·options·are·valid·for·specifying·an·SSH/SFTP·connection·(that·is, |
| 135 | can·be·used·as·configuration·elements):</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 135 | can·be·used·as·configuration·elements):</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="7473096110-1">[</span><span·class="p"·data-group-id="7473096110-2">{</span><span·class="n">ConnType</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Addr</span><span·class="p"·data-group-id="7473096110-2">}</span><span·class="p">,</span><span·class="w"> |
| 136 | ·</span><span·class="p"·data-group-id=" | 136 | ·</span><span·class="p"·data-group-id="7473096110-3">{</span><span·class="ss">port</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Port</span><span·class="p"·data-group-id="7473096110-3">}</span><span·class="p">,</span><span·class="w"> |
| 137 | ·</span><span·class="p"·data-group-id=" | 137 | ·</span><span·class="p"·data-group-id="7473096110-4">{</span><span·class="ss">user</span><span·class="p">,</span><span·class="w">·</span><span·class="n">UserName</span><span·class="p"·data-group-id="7473096110-4">}</span><span·class="w"> |
| 138 | ·</span><span·class="p"·data-group-id=" | 138 | ·</span><span·class="p"·data-group-id="7473096110-5">{</span><span·class="ss">password</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Pwd</span><span·class="p"·data-group-id="7473096110-5">}</span><span·class="w"> |
| 139 | ·</span><span·class="p"·data-group-id=" | 139 | ·</span><span·class="p"·data-group-id="7473096110-6">{</span><span·class="ss">user_dir</span><span·class="p">,</span><span·class="w">·</span><span·class="n">String</span><span·class="p"·data-group-id="7473096110-6">}</span><span·class="w"> |
| 140 | ·</span><span·class="p"·data-group-id=" | 140 | ·</span><span·class="p"·data-group-id="7473096110-7">{</span><span·class="ss">public_key_alg</span><span·class="p">,</span><span·class="w">·</span><span·class="n">PubKeyAlg</span><span·class="p"·data-group-id="7473096110-7">}</span><span·class="w"> |
| 141 | ·</span><span·class="p"·data-group-id=" | 141 | ·</span><span·class="p"·data-group-id="7473096110-8">{</span><span·class="ss">connect_timeout</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Timeout</span><span·class="p"·data-group-id="7473096110-8">}</span><span·class="w"> |
| 142 | ·</span><span·class="p"·data-group-id=" | 142 | ·</span><span·class="p"·data-group-id="7473096110-9">{</span><span·class="ss">key_cb</span><span·class="p">,</span><span·class="w">·</span><span·class="n">KeyCallbackMod</span><span·class="p"·data-group-id="7473096110-9">}</span><span·class="p"·data-group-id="7473096110-1">]</span></code></pre><p><code·class="inline">ConnType·=·ssh·|·sftp</code>.</p><p>For·other·types,·see·<a·href="../../../../lib/ssh-5.3/doc/html/ssh.html"><code·class="inline">ssh</code></a>.</p><p>All·time-out·parameters·in·<code·class="inline">ct_ssh</code>·functions·are·values·in·milliseconds.</p> |
| 143 | ····</section> | 143 | ····</section> |
| 144 | </div> | 144 | </div> |
| 145 | ··<section·id="summary"·class="details-list"> | 145 | ··<section·id="summary"·class="details-list"> |
| 146 | ····<h1·class="section-heading"> | 146 | ····<h1·class="section-heading"> |
| 147 | ······<a·class="hover-link"·href="#summary"> | 147 | ······<a·class="hover-link"·href="#summary"> |
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| 3708 | ······<p·class="built-using"> | 3708 | ······<p·class="built-using"> |
| 3709 | ········Built·using | 3709 | ········Built·using |
| 3710 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 3710 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 3711 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 3711 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 3712 | ······</p> | 3712 | ······</p> |
| 3713 | <p>Copyright·©·1996-202 | 3713 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 3714 | ····</footer> | 3714 | ····</footer> |
| 3715 | ··</div> | 3715 | ··</div> |
| 3716 | </main> | 3716 | </main> |
| 3717 | </div> | 3717 | </div> |
| 3718 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 3718 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 3719 | ··<script> | 3719 | ··<script> |
| 3720 | ··let·initialized·=·false; | 3720 | ··let·initialized·=·false; |
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| 1584 | ······<p·class="built-using"> | 1584 | ······<p·class="built-using"> |
| 1585 | ········Built·using | 1585 | ········Built·using |
| 1586 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1586 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1587 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1587 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1588 | ······</p> | 1588 | ······</p> |
| 1589 | <p>Copyright·©·1996-202 | 1589 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1590 | ····</footer> | 1590 | ····</footer> |
| 1591 | ··</div> | 1591 | ··</div> |
| 1592 | </main> | 1592 | </main> |
| 1593 | </div> | 1593 | </div> |
| 1594 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1594 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1595 | ··<script> | 1595 | ··<script> |
| 1596 | ··let·initialized·=·false; | 1596 | ··let·initialized·=·false; |
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| 132 | matching·on·the·result.·For·information·about·how·to·use·<code·class="inline">ct_telnet</code>·and | 132 | matching·on·the·result.·For·information·about·how·to·use·<code·class="inline">ct_telnet</code>·and |
| 133 | configure·connections,·specifically·for·UNIX·hosts,·see·the·<a·href="unix_telnet.html"><code·class="inline">unix_telnet</code></a> | 133 | configure·connections,·specifically·for·UNIX·hosts,·see·the·<a·href="unix_telnet.html"><code·class="inline">unix_telnet</code></a> |
| 134 | manual·page.</p><p>Default·values·defined·in·<code·class="inline">ct_telnet</code>:</p><p><a·href=""·id="Default_values"></a></p><ul><li>Connection·timeout·(time·to·wait·for·connection)·=·10·seconds</li><li>Command·timeout·(time·to·wait·for·a·command·to·return)·=·10·seconds</li><li>Max·number·of·reconnection·attempts·=·3</li><li>Reconnection·interval·(time·to·wait·in·between·reconnection·attempts)·=·5 | 134 | manual·page.</p><p>Default·values·defined·in·<code·class="inline">ct_telnet</code>:</p><p><a·href=""·id="Default_values"></a></p><ul><li>Connection·timeout·(time·to·wait·for·connection)·=·10·seconds</li><li>Command·timeout·(time·to·wait·for·a·command·to·return)·=·10·seconds</li><li>Max·number·of·reconnection·attempts·=·3</li><li>Reconnection·interval·(time·to·wait·in·between·reconnection·attempts)·=·5 |
| 135 | seconds</li><li>Keep·alive·(sends·NOP·to·the·server·every·8·sec·if·connection·is·idle)·= | 135 | seconds</li><li>Keep·alive·(sends·NOP·to·the·server·every·8·sec·if·connection·is·idle)·= |
| 136 | <code·class="inline">true</code></li><li>Polling·limit·(max·number·of·times·to·poll·to·get·a·remaining·string | 136 | <code·class="inline">true</code></li><li>Polling·limit·(max·number·of·times·to·poll·to·get·a·remaining·string |
| 137 | terminated)·=·0</li><li>Polling·interval·(sleep·time·between·polls)·=·1·second</li><li>The·TCP_NODELAY·option·for·the·telnet·socket·is·disabled·(set·to·<code·class="inline">false</code>)·per | 137 | terminated)·=·0</li><li>Polling·interval·(sleep·time·between·polls)·=·1·second</li><li>The·TCP_NODELAY·option·for·the·telnet·socket·is·disabled·(set·to·<code·class="inline">false</code>)·per |
| 138 | default</li></ul><p>These·parameters·can·be·modified·by·the·user·with·the·following·configuration | 138 | default</li></ul><p>These·parameters·can·be·modified·by·the·user·with·the·following·configuration |
| 139 | term:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="0 | 139 | term:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="9053006036-1">{</span><span·class="ss">telnet_settings</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9053006036-2">[</span><span·class="p"·data-group-id="9053006036-3">{</span><span·class="ss">connect_timeout</span><s[·...·truncated·by·diffoscope;·len:·94,·SHA:·aaa0a3afbe65caf40a926fb909673b4e47c7b8248410ce584cbda693799c5807·...·]-3">}</span><span·class="p">,</span><span·class="w"> |
| 140 | ···················</span><span·class="p"·data-group-id="0 | 140 | ···················</span><span·class="p"·data-group-id="9053006036-4">{</span><span·class="ss">command_timeout</span><span·class="p">,</span><span·class="n">Millisec</span><span·class="p"·data-group-id="9053006036-4">}</span><span·class="p">,</span><span·class="w"> |
| 141 | ···················</span><span·class="p"·data-group-id="0 | 141 | ···················</span><span·class="p"·data-group-id="9053006036-5">{</span><span·class="ss">reconnection_attempts</span><span·class="p">,</span><span·class="n">N</span><span·class="p"·data-group-id="9053006036-5">}</span><span·class="p">,</span><span·class="w"> |
| 142 | ···················</span><span·class="p"·data-group-id="0 | 142 | ···················</span><span·class="p"·data-group-id="9053006036-6">{</span><span·class="ss">reconnection_interval</span><span·class="p">,</span><span·class="n">Millisec</span><span·class="p"·data-group-id="9053006036-6">}</span><span·class="p">,</span><span·class="w"> |
| 143 | ···················</span><span·class="p"·data-group-id="0 | 143 | ···················</span><span·class="p"·data-group-id="9053006036-7">{</span><span·class="ss">keep_alive</span><span·class="p">,</span><span·class="n">Bool</span><span·class="p"·data-group-id="9053006036-7">}</span><span·class="p">,</span><span·class="w"> |
| 144 | ···················</span><span·class="p"·data-group-id="0 | 144 | ···················</span><span·class="p"·data-group-id="9053006036-8">{</span><span·class="ss">poll_limit</span><span·class="p">,</span><span·class="n">N</span><span·class="p"·data-group-id="9053006036-8">}</span><span·class="p">,</span><span·class="w"> |
| 145 | ···················</span><span·class="p"·data-group-id="0 | 145 | ···················</span><span·class="p"·data-group-id="9053006036-9">{</span><span·class="ss">poll_interval</span><span·class="p">,</span><span·class="n">Millisec</span><span·class="p"·data-group-id="9053006036-9">}</span><span·class="p">,</span><span·class="w"> |
| 146 | ···················</span><span·class="p"·data-group-id="0 | 146 | ···················</span><span·class="p"·data-group-id="9053006036-10">{</span><span·class="ss">tcp_nodelay</span><span·class="p">,</span><span·class="n">Bool</span><span·class="p"·data-group-id="9053006036-10">}</span><span·class="p"·data-group-id="9053006036-2">]</span><span·class="p"·data-group-id="905300603[·...·truncated·by·diffoscope;·len:·1,·SHA:·e7f6c011776e8db7cd330b54174fd76f7d0216b612387a5ffcfb81e6f0919683·...·]-1">}</span><span·class="p">.</span></code></pre><p><code·class="inline">Millisec·=·timeout(),·N·=·integer()</code></p><p>Enter·the·<code·class="inline">telnet_settings</code>·term·in·a·configuration·file·included·in·the·test |
| 147 | and·<code·class="inline">ct_telnet</code>·retrieves·the·information·automatically.</p><p><code·class="inline">keep_alive</code>·can·be·specified·per·connection,·if·necessary.·For·details,·see | 147 | and·<code·class="inline">ct_telnet</code>·retrieves·the·information·automatically.</p><p><code·class="inline">keep_alive</code>·can·be·specified·per·connection,·if·necessary.·For·details,·see |
| 148 | <a·href="unix_telnet.html"><code·class="inline">unix_telnet</code></a>.</p><h2·id="module-logging"·class="section-heading"> | 148 | <a·href="unix_telnet.html"><code·class="inline">unix_telnet</code></a>.</p><h2·id="module-logging"·class="section-heading"> |
| 149 | ··<a·href="#module-logging"·class="hover-link"> | 149 | ··<a·href="#module-logging"·class="hover-link"> |
| 150 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 150 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 151 | ··</a> | 151 | ··</a> |
| 152 | ··<span·class="text">Logging</span> | 152 | ··<span·class="text">Logging</span> |
| 153 | </h2> | 153 | </h2> |
| 154 | <p><a·href=""·id="Logging"></a></p><p>The·default·logging·behavior·of·<code·class="inline">ct_telnet</code>·is·to·print·information·about | 154 | <p><a·href=""·id="Logging"></a></p><p>The·default·logging·behavior·of·<code·class="inline">ct_telnet</code>·is·to·print·information·about |
| 155 | performed·operations,·commands,·and·their·corresponding·results·to·the·test·case | 155 | performed·operations,·commands,·and·their·corresponding·results·to·the·test·case |
| 156 | HTML·log.·The·following·is·not·printed·to·the·HTML·log:·text·strings·sent·from | 156 | HTML·log.·The·following·is·not·printed·to·the·HTML·log:·text·strings·sent·from |
| 157 | the·Telnet·server·that·are·not·explicitly·received·by·a·<code·class="inline">ct_telnet</code>·function, | 157 | the·Telnet·server·that·are·not·explicitly·received·by·a·<code·class="inline">ct_telnet</code>·function, |
| 158 | such·as·<a·href="#expect/3"><code·class="inline">expect/3</code></a>.·However,·<code·class="inline">ct_telnet</code>·can·be·configured·to·use | 158 | such·as·<a·href="#expect/3"><code·class="inline">expect/3</code></a>.·However,·<code·class="inline">ct_telnet</code>·can·be·configured·to·use |
| 159 | a·special·purpose·event·handler,·implemented·in·<code·class="inline">ct_conn_log_h</code>,·for·logging | 159 | a·special·purpose·event·handler,·implemented·in·<code·class="inline">ct_conn_log_h</code>,·for·logging |
| 160 | <em>all</em>·Telnet·traffic.·To·use·this·handler,·install·a·<code·class="inline">Common·Test</code>·hook·named | 160 | <em>all</em>·Telnet·traffic.·To·use·this·handler,·install·a·<code·class="inline">Common·Test</code>·hook·named |
| 161 | <code·class="inline">cth_conn_log</code>.·Example·(using·the·test·suite·information·function):</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">suite</span><span·class="p"·data-group-id="7 | 161 | <code·class="inline">cth_conn_log</code>.·Example·(using·the·test·suite·information·function):</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">suite</span><span·class="p"·data-group-id="7472883962-1">(</span><span·class="p"·data-group-id="7472883962-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 162 | ····</span><span·class="p"·data-group-id="7 | 162 | ····</span><span·class="p"·data-group-id="7472883962-2">[</span><span·class="p"·data-group-id="7472883962-3">{</span><span·class="ss">ct_hooks</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="7472883962-4">[</span><span·class="p"·data-group-id="7472883962-5">{</s[·...·truncated·by·diffoscope;·len:·804,·SHA:·1c3ecd1c911049250e377fe85376b2b8dae9849fbd816834c34223e62d3e8e0a·...·]-2">]</span><span·class="p">.</span></code></pre><p><code·class="inline">conn_mod()</code>·is·the·name·of·the·<code·class="inline">Common·Test</code>·module·implementing·the·connection |
| 163 | protocol,·that·is,·<code·class="inline">ct_telnet</code>.</p><p>The·<code·class="inline">cth_conn_log</code>·hook·performs·unformatted·logging·of·Telnet·data·to·a | 163 | protocol,·that·is,·<code·class="inline">ct_telnet</code>.</p><p>The·<code·class="inline">cth_conn_log</code>·hook·performs·unformatted·logging·of·Telnet·data·to·a |
| 164 | separate·text·file.·All·Telnet·communication·is·captured·and·printed,·including | 164 | separate·text·file.·All·Telnet·communication·is·captured·and·printed,·including |
| 165 | any·data·sent·from·the·server.·The·link·to·this·text·file·is·located·at·the·top | 165 | any·data·sent·from·the·server.·The·link·to·this·text·file·is·located·at·the·top |
| 166 | of·the·test·case·HTML·log.</p><p>By·default,·data·for·all·Telnet·connections·is·logged·in·one·common·file·(named | 166 | of·the·test·case·HTML·log.</p><p>By·default,·data·for·all·Telnet·connections·is·logged·in·one·common·file·(named |
| 167 | <code·class="inline">default</code>),·which·can·get·messy,·for·example,·if·multiple·Telnet·sessions·are | 167 | <code·class="inline">default</code>),·which·can·get·messy,·for·example,·if·multiple·Telnet·sessions·are |
| 168 | running·in·parallel.·Therefore·a·separate·log·file·can·be·created·for·each | 168 | running·in·parallel.·Therefore·a·separate·log·file·can·be·created·for·each |
| 169 | connection.·To·configure·this,·use·hook·option·<code·class="inline">hosts</code>·and·list·the·names·of·the | 169 | connection.·To·configure·this,·use·hook·option·<code·class="inline">hosts</code>·and·list·the·names·of·the |
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| 172 | default·value·of·this·option·is·<code·class="inline">raw</code>,·which·results·in·the·behavior·described | 172 | default·value·of·this·option·is·<code·class="inline">raw</code>,·which·results·in·the·behavior·described |
| 173 | above.·If·the·value·is·set·to·<code·class="inline">html</code>,·all·Telnet·communication·is·printed·to·the | 173 | above.·If·the·value·is·set·to·<code·class="inline">html</code>,·all·Telnet·communication·is·printed·to·the |
| 174 | test·case·HTML·log·instead.</p><p>For·raw·logs,·<code·class="inline">prefix</code>·option·can·be·used·for·adjusting·prefix·data | 174 | test·case·HTML·log·instead.</p><p>For·raw·logs,·<code·class="inline">prefix</code>·option·can·be·used·for·adjusting·prefix·data |
| 175 | added·to·connection·log.·The·default·value·of·this·option·is | 175 | added·to·connection·log.·The·default·value·of·this·option·is |
| 176 | <code·class="inline">disabled</code>,·which·results·with·no·prefix·data.·If·the·value·is·set·to | 176 | <code·class="inline">disabled</code>,·which·results·with·no·prefix·data.·If·the·value·is·set·to |
| 177 | <code·class="inline">full</code>·prefix·contains·timestamp·and·additonal·information.·If·the | 177 | <code·class="inline">full</code>·prefix·contains·timestamp·and·additonal·information.·If·the |
| 178 | value·is·set·to·<code·class="inline">short</code>·prefix·includes·only·human·readable·timestamp.</p><p>All·<code·class="inline">cth_conn_log</code>·hook·options·described·can·also·be·specified·in·a | 178 | value·is·set·to·<code·class="inline">short</code>·prefix·includes·only·human·readable·timestamp.</p><p>All·<code·class="inline">cth_conn_log</code>·hook·options·described·can·also·be·specified·in·a |
| 179 | configuration·file·with·configuration·variable·<code·class="inline">ct_conn_log</code>.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="4287784731-1">{</span><span·class="ss">ct_conn_log</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4287784731-2">[</span><span·class="p"·data-group-id="4287784731-3">{</span><span·class="ss">ct_telnet</span><span·class="p">,</span><span·class="p"·data-group-id="4287784731-4">[</span><span·class="p"·data-group-id="4287784731-5">{</span><span·class="ss">log_type</span><span·class="p">,</span><span·class="ss">raw</span><span·class="p"·data-group-id="4287784731-5">}</span><span·class="p">,</span><span·class="w"> | ||
| 180 | 179 | configuration·file·with·configuration·variable·<code·class="inline">ct_conn_log</code>.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="3977795913-1">{</span><span·class="ss">ct_conn_log</span><span[·...·truncated·by·diffoscope;·len:·488,·SHA:·0e0a1110536b33e0252dac843c1872ab32d6d38303126ba7e4ea5735a722cb2f·...·] | |
| 180 | ···························</span><span·class="p"·data-group-id="3977795913-6">{</span><span·class="ss">hosts</span><span·class="p">,</span><span·class="p"·data-group-id="3977795913-7">[</span><span·class="nf">key_or_name</span><span·class="p"·data-group-id="3977795913-8">(</span><span·class="p"·data-group-id="3977795913-8">)</span><span·class="p"·data-group-id="3977795913-7">]</span><span·class="p"·data-group-id="3977795913-6">}</span><span·class="p"·data-group-id="3977795913-4">]</span><span·class="p"·data-group-id="3977795913-3">}</span><span·class="p"·data-group-id="3977795913-2">]</span><span·class="p"·data-group-id="3977795913-1">}</span></code></pre><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>Hook·options·specified·in·a·configuration·file·overwrite·any·hard-coded·hook | ||
| 181 | options·in·the·test·suite.</p></section><p><a·href=""·id="Logging_example"></a></p><p><em>Logging·Example:</em></p><p>The·following·<code·class="inline">ct_hooks</code>·statement·causes·printing·of·Telnet·traffic·to·separate | 181 | options·in·the·test·suite.</p></section><p><a·href=""·id="Logging_example"></a></p><p><em>Logging·Example:</em></p><p>The·following·<code·class="inline">ct_hooks</code>·statement·causes·printing·of·Telnet·traffic·to·separate |
| 182 | logs·for·the·connections·<code·class="inline">server1</code>·and·<code·class="inline">server2</code>.·Traffic·for·any·other | 182 | logs·for·the·connections·<code·class="inline">server1</code>·and·<code·class="inline">server2</code>.·Traffic·for·any·other |
| 183 | connections·is·logged·in·the·default·Telnet·log.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">suite</span><span·class="p"·data-group-id="6 | 183 | connections·is·logged·in·the·default·Telnet·log.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">suite</span><span·class="p"·data-group-id="6924366186-1">(</span><span·class="p"·data-group-id="6924366186-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 184 | ····</span><span·class="p"·data-group-id="6 | 184 | ····</span><span·class="p"·data-group-id="6924366186-2">[</span><span·class="p"·data-group-id="6924366186-3">{</span><span·class="ss">ct_hooks</span><span·class="p">,</span><span·class="w"> |
| 185 | ······</span><span·class="p"·data-group-id="6716394204-4">[</span><span·class="p"·data-group-id="6716394204-5">{</span><span·class="ss">cth_conn_log</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6716394204-6">[</span><span·class="p"·data-group-id="6716394204-7">{</span><span·class="ss">ct_telnet</span><span·class="p">,</span><span·class="p"·data-group-id="6716394204-8">[</span><span·class="p"·data-group-id="6716394204-9">{</span><span·class="ss">hosts</span><span·class="p">,</span><span·class="p"·data-group-id="6716394204-10">[</span><span·class="ss">server1</span><span·class="p">,</span><span·class="ss">server2</span><span·class="p"·data-group-id="6716394204-10">]</span><span·class="p"·data-group-id="6716394204-9">}</span><span·class="p"·data-group-id="6716394204-8">]</span><span·class="p"·data-group-id="6716394204-7">}</span><span·class="p"·data-group-id="6716394204-6">]</span><span·class="p"·data-group-id="6716394204-5">}</span><span·class="p"·data-group-id="6716394204-4">]</span><span·class="p"·data-group-id="6716394204-3">}</span><span·class="p"·data-group-id="6716394204-2">]</span><span·class="p">.</span></code></pre><p>As·previously·explained,·this·specification·can·also·be·provided·by·an·entry | ||
| 186 | 185 | ······</span><span·class="p"·data-group-id="6924366186-4">[</span><span·class="p"·data-group-id="6924366186-5">{</span><span·class="ss">cth_conn_log</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6924366186-6">[</span>[·...·truncated·by·diffoscope;·len:·1003,·SHA:·a458a27fdad3faca1450a3645205ad48df38b33077998984ed32a0ba0c967d50·...·] | |
| 186 | like·the·following·in·a·configuration·file:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="5457961332-1">{</span><span·class="ss">ct_conn_log</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="5457961332-2">[</span><span·class="p"·data-group-id="5457961332-3">{</span><span·class="ss">ct_telnet</span><span·class="p">,</span><span·class="p"·data-group-id="5457961332-4">[</span><span·class="p"·data-group-id="5457961332-5">{</span><span·class="ss">hosts</span><span·class="p">,</span><span·class="p"·data-group-id="5457961332-6">[</span><span·class="ss">server1</span><span·class="p">,</span><span·class="ss">server2</span><span·class="p"·data-group-id="5457961332-6">]</span><span·class="p"·data-group-id="5457961332-5">}</span><span·class="p"·data-group-id="5457961332-4">]</span><span·class="p"·data-group-id="5457961332-3">}</span><span·class="p"·data-group-id="5457961332-2">]</span><span·class="p"·data-group-id="5457961332-1">}</span><span·class="p">.</span></code></pre><p>In·this·case·the·<code·class="inline">ct_hooks</code>·statement·in·the·test·suite·can·look·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">suite</span><span·class="p"·data-group-id="0073923258-1">(</span><span·class="p"·data-group-id="0073923258-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | ||
| 187 | ····</span><span·class="p"·data-group-id=" | 187 | ····</span><span·class="p"·data-group-id="0073923258-2">[</span><span·class="p"·data-group-id="0073923258-3">{</span><span·class="ss">ct_hooks</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0073923258-4">[</span><span·class="p"·data-group-id="0073923258-5">{</[·...·truncated·by·diffoscope;·len:·395,·SHA:·43616fb0423f8dbac09698dbfde03d111ef63abc63e7d76744f9fbb9160d3ebe·...·]-2">]</span><span·class="p">.</span></code></pre><h2·id="module-see-also"·class="section-heading"> |
| 188 | ··<a·href="#module-see-also"·class="hover-link"> | 188 | ··<a·href="#module-see-also"·class="hover-link"> |
| 189 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 189 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 190 | ··</a> | 190 | ··</a> |
| 191 | ··<span·class="text">See·Also</span> | 191 | ··<span·class="text">See·Also</span> |
| 192 | </h2> | 192 | </h2> |
| 193 | <p><a·href="unix_telnet.html"><code·class="inline">unix_telnet</code></a></p> | 193 | <p><a·href="unix_telnet.html"><code·class="inline">unix_telnet</code></a></p> |
| 194 | ····</section> | 194 | ····</section> |
| Offset 865, 17 lines modified | Offset 865, 17 lines modified | ||
| 865 | of·waiting·for·prompt.</p></li><li><p><strong><code·class="inline">repeat·|·repeat,·N</code></strong>·-·The·pattern(s)·must·be·matched·multiple·times.·If | 865 | of·waiting·for·prompt.</p></li><li><p><strong><code·class="inline">repeat·|·repeat,·N</code></strong>·-·The·pattern(s)·must·be·matched·multiple·times.·If |
| 866 | <code·class="inline">N</code>·is·specified,·the·pattern(s)·are·matched·<code·class="inline">N</code>·times,·and·the·function | 866 | <code·class="inline">N</code>·is·specified,·the·pattern(s)·are·matched·<code·class="inline">N</code>·times,·and·the·function |
| 867 | returns·<code·class="inline">HaltReason·=·done</code>.·This·option·can·be·interrupted·by·one·or·more | 867 | returns·<code·class="inline">HaltReason·=·done</code>.·This·option·can·be·interrupted·by·one·or·more |
| 868 | <code·class="inline">HaltPatterns</code>.·<code·class="inline">MatchList</code>·is·always·returned,·that·is,·a·list·of·<code·class="inline">Match</code> | 868 | <code·class="inline">HaltPatterns</code>.·<code·class="inline">MatchList</code>·is·always·returned,·that·is,·a·list·of·<code·class="inline">Match</code> |
| 869 | instead·of·only·one·<code·class="inline">Match</code>.·Also·<code·class="inline">HaltReason</code>·is·returned.</p></li><li><p><strong><code·class="inline">sequence</code></strong>·-·All·patterns·must·be·matched·in·a·sequence.·A·match·is·not | 869 | instead·of·only·one·<code·class="inline">Match</code>.·Also·<code·class="inline">HaltReason</code>·is·returned.</p></li><li><p><strong><code·class="inline">sequence</code></strong>·-·All·patterns·must·be·matched·in·a·sequence.·A·match·is·not |
| 870 | concluded·until·all·patterns·are·matched.·This·option·can·be·interrupted·by | 870 | concluded·until·all·patterns·are·matched.·This·option·can·be·interrupted·by |
| 871 | one·or·more·<code·class="inline">HaltPatterns</code>.·<code·class="inline">MatchList</code>·is·always·returned,·that·is,·a·list·of | 871 | one·or·more·<code·class="inline">HaltPatterns</code>.·<code·class="inline">MatchList</code>·is·always·returned,·that·is,·a·list·of |
| 872 | <code·class="inline">Match</code>·instead·of·only·one·<code·class="inline">Match</code>.·Also·<code·class="inline">HaltReason</code>·is·returned.</p></li></ul><p><em>Example·1:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">expect</span><span·class="p"·data-group-id=" | 872 | <code·class="inline">Match</code>·instead·of·only·one·<code·class="inline">Match</code>.·Also·<code·class="inline">HaltReason</code>·is·returned.</p></li></ul><p><em>Example·1:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">expect</span><span·class="p"·data-group-id="0435148237-1">(</span><span·class="n">Connection</span><span·class="p">,</span><span·class="p"·data-group-id="0435148237-2">[</span><span·class="p"·data-group-id="0435148237-3">{</span><span·class="ss">abc</span><span·class="p">,</span><span·class="s">&quo[·...·truncated·by·diffoscope;·len:·1029,·SHA:·4abd0bd785dbeb503e43598b61dd3880979363543ba4458aa75ee0d08c8417ea·...·]-1">)</span></code></pre><p>First·this·tries·to·match·<code·class="inline">"ABC"</code>,·and·then·<code·class="inline">"XYZ"</code>,·but·if·<code·class="inline">"NNN"</code>·appears,·the |
| 873 | function·returns·<code·class="inline">{error,{nnn,["NNN"]}}</code>.·If·both·<code·class="inline">"ABC"</code>·and·<code·class="inline">"XYZ"</code>·are | 873 | function·returns·<code·class="inline">{error,{nnn,["NNN"]}}</code>.·If·both·<code·class="inline">"ABC"</code>·and·<code·class="inline">"XYZ"</code>·are |
| 874 | matched,·the·function·returns·<code·class="inline">{ok,[AbcMatch,XyzMatch]}</code>.</p><p><em>Example·2:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">expect</span><span·class="p"·data-group-id=" | 874 | matched,·the·function·returns·<code·class="inline">{ok,[AbcMatch,XyzMatch]}</code>.</p><p><em>Example·2:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">expect</span><span·class="p"·data-group-id="3488999938-1">(</span><span·class="n">Connection</span><span·class="p">,</span><span·class="p"·data-group-id="3488999938-2">[</span><span·class="p"·data-group-id="3488999938-3">{</span><span·class="ss">abc</span><span·class="p">,</span><span·class="s">&quo[·...·truncated·by·diffoscope;·len:·1182,·SHA:·363293650d076aa7af5f5e0ce5c5caec3aa945ddd17bd1e22ec473bf0b2a61c8·...·]-1">)</span></code></pre><p>This·tries·to·match·<code·class="inline">"ABC"</code>·or·<code·class="inline">"XYZ"</code>·twice.·If·<code·class="inline">"NNN"</code>·appears,·the·function |
| 875 | returns·<code·class="inline">HaltReason·=·{nnn,["NNN"]}</code>.</p><p>Options·<code·class="inline">repeat</code>·and·<code·class="inline">sequence</code>·can·be·combined·to·match·a·sequence·multiple | 875 | returns·<code·class="inline">HaltReason·=·{nnn,["NNN"]}</code>.</p><p>Options·<code·class="inline">repeat</code>·and·<code·class="inline">sequence</code>·can·be·combined·to·match·a·sequence·multiple |
| 876 | times.</p> | 876 | times.</p> |
| 877 | ··</section> | 877 | ··</section> |
| 878 | </section> | 878 | </section> |
| 879 | <section·class="detail"·id="get_data/1"> | 879 | <section·class="detail"·id="get_data/1"> |
| 880 | ··<div·class="detail-header"> | 880 | ··<div·class="detail-header"> |
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| 1189 | ······<p·class="built-using"> | 1189 | ······<p·class="built-using"> |
| 1190 | ········Built·using | 1190 | ········Built·using |
| 1191 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1191 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1192 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1192 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1193 | ······</p> | 1193 | ······</p> |
| 1194 | <p>Copyright·©·1996-202 | 1194 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1195 | ····</footer> | 1195 | ····</footer> |
| 1196 | ··</div> | 1196 | ··</div> |
| 1197 | </main> | 1197 | </main> |
| 1198 | </div> | 1198 | </div> |
| 1199 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1199 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1200 | ··<script> | 1200 | ··<script> |
| 1201 | ··let·initialized·=·false; | 1201 | ··let·initialized·=·false; |
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| 233 | ······<p·class="built-using"> | 233 | ······<p·class="built-using"> |
| 234 | ········Built·using | 234 | ········Built·using |
| 235 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 235 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 236 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 236 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 237 | ······</p> | 237 | ······</p> |
| 238 | <p>Copyright·©·1996-202 | 238 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 239 | ····</footer> | 239 | ····</footer> |
| 240 | ··</div> | 240 | ··</div> |
| 241 | </main> | 241 | </main> |
| 242 | </div> | 242 | </div> |
| 243 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 243 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 244 | ··<script> | 244 | ··<script> |
| 245 | ··let·initialized·=·false; | 245 | ··let·initialized·=·false; |
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| 157 | between·the·cases·and·therefore·introduce·dependencies·between·them.</p><p>To·avoid·this,·we·can·consider·starting·and·stopping·the·server·for·every·test. | 157 | between·the·cases·and·therefore·introduce·dependencies·between·them.</p><p>To·avoid·this,·we·can·consider·starting·and·stopping·the·server·for·every·test. |
| 158 | We·can·thus·implement·the·start·and·stop·action·as·common·functions·to·be·called | 158 | We·can·thus·implement·the·start·and·stop·action·as·common·functions·to·be·called |
| 159 | from·<a·href="ct_suite.html#c:init_per_testcase/2"><code·class="inline">init_per_testcase</code></a>·and | 159 | from·<a·href="ct_suite.html#c:init_per_testcase/2"><code·class="inline">init_per_testcase</code></a>·and |
| 160 | <a·href="ct_suite.html#c:end_per_testcase/2"><code·class="inline">end_per_testcase</code></a>.·(Remember·to·test·the | 160 | <a·href="ct_suite.html#c:end_per_testcase/2"><code·class="inline">end_per_testcase</code></a>.·(Remember·to·test·the |
| 161 | start·and·stop·functionality·separately.)·The·configuration·can·also·be | 161 | start·and·stop·functionality·separately.)·The·configuration·can·also·be |
| 162 | implemented·as·a·common·function,·maybe·grouped·with·the·start·function. | 162 | implemented·as·a·common·function,·maybe·grouped·with·the·start·function. |
| 163 | Finally,·the·testing·of·connecting·and·disconnecting·a·client·can·be·grouped | 163 | Finally,·the·testing·of·connecting·and·disconnecting·a·client·can·be·grouped |
| 164 | into·one·test·case.·The·resulting·suite·can·look·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 164 | into·one·test·case.·The·resulting·suite·can·look·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="7983323624-1">(</span><span·class="ss">my_server_SUITE</span><span·class="p"·data-group-id="7983323624-1">)</span><span·class="p">.</span><span·class="w"> |
| 165 | </span><span·class="p">-</span><span·class="na">compile</span><span·class="p"·data-group-id=" | 165 | </span><span·class="p">-</span><span·class="na">compile</span><span·class="p"·data-group-id="7983323624-2">(</span><span·class="ss">export_all</span><span·class="p"·data-group-id="7983323624-2">)</span><span·class="p">.</span><span·class="w"> |
| 166 | </span><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id=" | 166 | </span><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id="7983323624-3">(</span><span·class="s">"ct.hrl"</span><span·class="p"·data-group-id="7983323624-3">)</span><span·class="p">.</span><span·class="w"> |
| 167 | </span><span·class="c1">%%%·init·and·end·functions...</span><span·class="w"> | 167 | </span><span·class="c1">%%%·init·and·end·functions...</span><span·class="w"> |
| 168 | </span><span·class="nf">suite</span><span·class="p"·data-group-id=" | 168 | </span><span·class="nf">suite</span><span·class="p"·data-group-id="7983323624-4">(</span><span·class="p"·data-group-id="7983323624-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="p"·data-group-id="7983323624-5">[</span><span·class="p"·data-group-id="7983323624-6">{</span[·...·truncated·by·diffoscope;·len:·187,·SHA:·7f18fe4f1a1001f1778dd2ca3b8382a89280d4dc67ab0f9bcbf5ce08116c299c·...·]-5">]</span><span·class="p">.</span><span·class="w"> |
| 169 | </span><span·class="nf">init_per_testcase</span><span·class="p"·data-group-id=" | 169 | </span><span·class="nf">init_per_testcase</span><span·class="p"·data-group-id="7983323624-7">(</span><span·class="ss">start_and_stop</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Config</span><span·class="p"·data-group-id="7983323624-7">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 170 | ····</span><span·class="n">Config</span><span·class="p">;</span><span·class="w"> | 170 | ····</span><span·class="n">Config</span><span·class="p">;</span><span·class="w"> |
| 171 | </span><span·class="nf">init_per_testcase</span><span·class="p"·data-group-id=" | 171 | </span><span·class="nf">init_per_testcase</span><span·class="p"·data-group-id="7983323624-8">(</span><span·class="ss">config</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Config</span><span·class="p"·data-group-id="7983323624-8">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 172 | ····</span><span·class="p"·data-group-id=" | 172 | ····</span><span·class="p"·data-group-id="7983323624-9">[</span><span·class="p"·data-group-id="7983323624-10">{</span><span·class="ss">server_pid</span><span·class="p">,</span><span·class="nf">start_server</span><span·class="p"·data-group-id="7983323624-11">(</span><span·class="p"·data-group-id="7[·...·truncated·by·diffoscope;·len:·218,·SHA:·98bac91832b694406ec17e77c7be4f8a47cb8737e843a5f58447f98449cc29c6·...·]-9">]</span><span·class="p">;</span><span·class="w"> |
| 173 | </span><span·class="nf">init_per_testcase</span><span·class="p"·data-group-id=" | 173 | </span><span·class="nf">init_per_testcase</span><span·class="p"·data-group-id="7983323624-12">(</span><span·class="p">_</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Config</span><span·class="p"·data-group-id="7983323624-12">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 174 | ····</span><span·class="n">ServerPid</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">start_server</span><span·class="p"·data-group-id=" | 174 | ····</span><span·class="n">ServerPid</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">start_server</span><span·class="p"·data-group-id="7983323624-13">(</span><span·class="p"·data-group-id="7983323624-13">)</span><span·class="p">,</span><span·class="w"> |
| 175 | ····</span><span·class="nf">configure_server</span><span·class="p"·data-group-id=" | 175 | ····</span><span·class="nf">configure_server</span><span·class="p"·data-group-id="7983323624-14">(</span><span·class="p"·data-group-id="7983323624-14">)</span><span·class="p">,</span><span·class="w"> |
| 176 | ····</span><span·class="p"·data-group-id=" | 176 | ····</span><span·class="p"·data-group-id="7983323624-15">[</span><span·class="p"·data-group-id="7983323624-16">{</span><span·class="ss">server_pid</span><span·class="p">,</span><span·class="n">ServerPid</span><span·class="p"·data-group-id="7983323624-16">}</span><span·class="w">·</span><span·class[·...·truncated·by·diffoscope;·len:·107,·SHA:·3efc39f2312ef5a59ef881862b742054106eb7a5d18ad73ceac91e310d8064f0·...·]-15">]</span><span·class="p">.</span><span·class="w"> |
| 177 | </span><span·class="nf">end_per_testcase</span><span·class="p"·data-group-id=" | 177 | </span><span·class="nf">end_per_testcase</span><span·class="p"·data-group-id="7983323624-17">(</span><span·class="ss">start_and_stop</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="p"·data-group-id="7983323624-17">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 178 | ····</span><span·class="ss">ok</span><span·class="p">;</span><span·class="w"> | 178 | ····</span><span·class="ss">ok</span><span·class="p">;</span><span·class="w"> |
| 179 | </span><span·class="nf">end_per_testcase</span><span·class="p"·data-group-id=" | 179 | </span><span·class="nf">end_per_testcase</span><span·class="p"·data-group-id="7983323624-18">(</span><span·class="p">_</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Config</span><span·class="p"·data-group-id="7983323624-18">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 180 | ····</span><span·class="n">ServerPid</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">proplists</span><span·class="p">:</span><span·class="nf">get_value</span><span·class="p"·data-group-id=" | 180 | ····</span><span·class="n">ServerPid</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">proplists</span><span·class="p">:</span><span·class="nf">get_value</span><span·class="p"·data-group-id="7983323624-19">(</span><span·class="ss">server_pid</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Config</span><span·class="p"·data-group-id="7983323624-19">)</span><span·class="p">,</span><span·class="w"> |
| 181 | ····</span><span·class="nf">stop_server</span><span·class="p"·data-group-id=" | 181 | ····</span><span·class="nf">stop_server</span><span·class="p"·data-group-id="7983323624-20">(</span><span·class="n">ServerPid</span><span·class="p"·data-group-id="7983323624-20">)</span><span·class="p">.</span><span·class="w"> |
| 182 | </span><span·class="c1">%%%·test·cases...</span><span·class="w"> | 182 | </span><span·class="c1">%%%·test·cases...</span><span·class="w"> |
| 183 | </span><span·class="nf">all</span><span·class="p"·data-group-id=" | 183 | </span><span·class="nf">all</span><span·class="p"·data-group-id="7983323624-21">(</span><span·class="p"·data-group-id="7983323624-21">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="p"·data-group-id="7983323624-22">[</span><span·class="ss">start_and_stop</span><span·class[·...·truncated·by·diffoscope;·len:·202,·SHA:·4d1bf2cd7422820576c7f10fca39c00e0e7b88282c3058e7b7f9b23726c74c91·...·]-22">]</span><span·class="p">.</span><span·class="w"> |
| 184 | </span><span·class="c1">%%·test·that·starting·and·stopping·works</span><span·class="w"> | 184 | </span><span·class="c1">%%·test·that·starting·and·stopping·works</span><span·class="w"> |
| 185 | </span><span·class="nf">start_and_stop</span><span·class="p"·data-group-id=" | 185 | </span><span·class="nf">start_and_stop</span><span·class="p"·data-group-id="7983323624-23">(</span><span·class="p">_</span><span·class="p"·data-group-id="7983323624-23">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 186 | ····</span><span·class="n">ServerPid</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">start_server</span><span·class="p"·data-group-id=" | 186 | ····</span><span·class="n">ServerPid</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">start_server</span><span·class="p"·data-group-id="7983323624-24">(</span><span·class="p"·data-group-id="7983323624-24">)</span><span·class="p">,</span><span·class="w"> |
| 187 | ····</span><span·class="nf">stop_server</span><span·class="p"·data-group-id=" | 187 | ····</span><span·class="nf">stop_server</span><span·class="p"·data-group-id="7983323624-25">(</span><span·class="n">ServerPid</span><span·class="p"·data-group-id="7983323624-25">)</span><span·class="p">.</span><span·class="w"> |
| 188 | </span><span·class="c1">%%·configuration·test</span><span·class="w"> | 188 | </span><span·class="c1">%%·configuration·test</span><span·class="w"> |
| 189 | </span><span·class="nf">config</span><span·class="p"·data-group-id=" | 189 | </span><span·class="nf">config</span><span·class="p"·data-group-id="7983323624-26">(</span><span·class="n">Config</span><span·class="p"·data-group-id="7983323624-26">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 190 | ····</span><span·class="n">ServerPid</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">proplists</span><span·class="p">:</span><span·class="nf">get_value</span><span·class="p"·data-group-id=" | 190 | ····</span><span·class="n">ServerPid</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">proplists</span><span·class="p">:</span><span·class="nf">get_value</span><span·class="p"·data-group-id="7983323624-27">(</span><span·class="ss">server_pid</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Config</span><span·class="p"·data-group-id="7983323624-27">)</span><span·class="p">,</span><span·class="w"> |
| 191 | ····</span><span·class="nf">configure_server</span><span·class="p"·data-group-id=" | 191 | ····</span><span·class="nf">configure_server</span><span·class="p"·data-group-id="7983323624-28">(</span><span·class="n">ServerPid</span><span·class="p"·data-group-id="7983323624-28">)</span><span·class="p">.</span><span·class="w"> |
| 192 | </span><span·class="c1">%%·test·connecting·and·disconnecting·client</span><span·class="w"> | 192 | </span><span·class="c1">%%·test·connecting·and·disconnecting·client</span><span·class="w"> |
| 193 | </span><span·class="nf">connect_and_disconnect</span><span·class="p"·data-group-id=" | 193 | </span><span·class="nf">connect_and_disconnect</span><span·class="p"·data-group-id="7983323624-29">(</span><span·class="n">Config</span><span·class="p"·data-group-id="7983323624-29">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 194 | ····</span><span·class="n">ServerPid</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">proplists</span><span·class="p">:</span><span·class="nf">get_value</span><span·class="p"·data-group-id=" | 194 | ····</span><span·class="n">ServerPid</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">proplists</span><span·class="p">:</span><span·class="nf">get_value</span><span·class="p"·data-group-id="7983323624-30">(</span><span·class="ss">server_pid</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Config</span><span·class="p"·data-group-id="7983323624-30">)</span><span·class="p">,</span><span·class="w"> |
| 195 | ····</span><span·class="p"·data-group-id=" | 195 | ····</span><span·class="p"·data-group-id="7983323624-31">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="n">SessionId</span><span·class="p"·data-group-id="7983323624-31">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">my_serve[·...·truncated·by·diffoscope;·len:·190,·SHA:·3a584c3cea573e69f61df0bcc2cbe5f2b2dbaee78d8710651c4d29300ad7be72·...·]-32">)</span><span·class="p">,</span><span·class="w"> |
| 196 | ····</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">my_server</span><span·class="p">:</span><span·class="nf">disconnect</span><span·class="p"·data-group-id=" | 196 | ····</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">my_server</span><span·class="p">:</span><span·class="nf">disconnect</span><span·class="p"·data-group-id="7983323624-33">(</span><span·class="n">ServerPid</span><span·class="p">,</span><span·class="w">·</span><span·class="n">SessionId</span><span·class="p"·data-group-id="7983323624-33">)</span><span·class="p">.</span><span·class="w"> |
| 197 | </span><span·class="c1">%%%·common·functions...</span><span·class="w"> | 197 | </span><span·class="c1">%%%·common·functions...</span><span·class="w"> |
| 198 | </span><span·class="nf">start_server</span><span·class="p"·data-group-id=" | 198 | </span><span·class="nf">start_server</span><span·class="p"·data-group-id="7983323624-34">(</span><span·class="p"·data-group-id="7983323624-34">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 199 | ····</span><span·class="p"·data-group-id=" | 199 | ····</span><span·class="p"·data-group-id="7983323624-35">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="n">ServerPid</span><span·class="p"·data-group-id="7983323624-35">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">my_serve[·...·truncated·by·diffoscope;·len:·156,·SHA:·ccf5e8d11769dd38b474acd59260bba44552b49d69df53ae3cb96295d8e9a27a·...·]-36">)</span><span·class="p">,</span><span·class="w"> |
| 200 | ····</span><span·class="n">ServerPid</span><span·class="p">.</span><span·class="w"> | 200 | ····</span><span·class="n">ServerPid</span><span·class="p">.</span><span·class="w"> |
| 201 | </span><span·class="nf">stop_server</span><span·class="p"·data-group-id=" | 201 | </span><span·class="nf">stop_server</span><span·class="p"·data-group-id="7983323624-37">(</span><span·class="n">ServerPid</span><span·class="p"·data-group-id="7983323624-37">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 202 | ····</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">my_server</span><span·class="p">:</span><span·class="nf">stop</span><span·class="p"·data-group-id=" | 202 | ····</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">my_server</span><span·class="p">:</span><span·class="nf">stop</span><span·class="p"·data-group-id="7983323624-38">(</span><span·class="p"·data-group-id="7983323624-38">)</span><span·class="p">,</span><span·class="w"> |
| 203 | ····</span><span·class="ss">ok</span><span·class="p">.</span><span·class="w"> | 203 | ····</span><span·class="ss">ok</span><span·class="p">.</span><span·class="w"> |
| 204 | </span><span·class="nf">configure_server</span><span·class="p"·data-group-id=" | 204 | </span><span·class="nf">configure_server</span><span·class="p"·data-group-id="7983323624-39">(</span><span·class="n">ServerPid</span><span·class="p"·data-group-id="7983323624-39">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 205 | ····</span><span·class="n">ServerCfgData</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">ct</span><span·class="p">:</span><span·class="nf">get_config</span><span·class="p"·data-group-id=" | 205 | ····</span><span·class="n">ServerCfgData</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">ct</span><span·class="p">:</span><span·class="nf">get_config</span><span·class="p"·data-group-id="7983323624-40">(</span><span·class="ss">my_server_cfg</span><span·class="p"·data-group-id="7983323624-40">)</span><span·class="p">,</span><span·class="w"> |
| 206 | ····</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">my_server</span><span·class="p">:</span><span·class="nf">configure</span><span·class="p"·data-group-id=" | 206 | ····</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">my_server</span><span·class="p">:</span><span·class="nf">configure</span><span·class="p"·data-group-id="7983323624-41">(</span><span·class="n">ServerPid</span><span·class="p">,</span><span·class="w">·</span><span·class="n">ServerCfgData</span><span·class="p"·data-group-id="7983323624-41">)</span><span·class="p">,</span><span·class="w"> |
| 207 | ····</span><span·class="ss">ok</span><span·class="p">.</span></code></pre><p><a·href=""·id="save_config"></a></p><h2·id="saving-configuration-data"·class="section-heading"> | 207 | ····</span><span·class="ss">ok</span><span·class="p">.</span></code></pre><p><a·href=""·id="save_config"></a></p><h2·id="saving-configuration-data"·class="section-heading"> |
| 208 | ··<a·href="#saving-configuration-data"·class="hover-link"> | 208 | ··<a·href="#saving-configuration-data"·class="hover-link"> |
| 209 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 209 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 210 | ··</a> | 210 | ··</a> |
| 211 | ··<span·class="text">Saving·Configuration·Data</span> | 211 | ··<span·class="text">Saving·Configuration·Data</span> |
| 212 | </h2> | 212 | </h2> |
| 213 | <p>Sometimes·it·is·impossible,·or·infeasible,·to·implement·independent·test·cases. | 213 | <p>Sometimes·it·is·impossible,·or·infeasible,·to·implement·independent·test·cases. |
| Offset 243, 48 lines modified | Offset 243, 48 lines modified | ||
| 243 | <code·class="inline">Saver</code>·is·always·matched·to·the·expected·name·of·the·saving·test·case.·This | 243 | <code·class="inline">Saver</code>·is·always·matched·to·the·expected·name·of·the·saving·test·case.·This |
| 244 | way,·problems·because·of·restructuring·of·the·test·suite·can·be·avoided.·Also, | 244 | way,·problems·because·of·restructuring·of·the·test·suite·can·be·avoided.·Also, |
| 245 | it·makes·the·dependency·more·explicit·and·the·test·suite·easier·to·read·and | 245 | it·makes·the·dependency·more·explicit·and·the·test·suite·easier·to·read·and |
| 246 | maintain.</p><p>To·pass·data·from·one·test·suite·to·another,·the·same·mechanism·is·used.·The | 246 | maintain.</p><p>To·pass·data·from·one·test·suite·to·another,·the·same·mechanism·is·used.·The |
| 247 | data·is·to·be·saved·by·finction·<a·href="ct_suite.html#c:end_per_suite/1"><code·class="inline">end_per_suite</code></a> | 247 | data·is·to·be·saved·by·finction·<a·href="ct_suite.html#c:end_per_suite/1"><code·class="inline">end_per_suite</code></a> |
| 248 | and·read·by·function·<a·href="ct_suite.html#c:init_per_suite/1"><code·class="inline">init_per_suite</code></a>·in·the | 248 | and·read·by·function·<a·href="ct_suite.html#c:init_per_suite/1"><code·class="inline">init_per_suite</code></a>·in·the |
| 249 | suite·that·follows.·When·passing·data·between·suites,·<code·class="inline">Saver</code>·carries·the·name | 249 | suite·that·follows.·When·passing·data·between·suites,·<code·class="inline">Saver</code>·carries·the·name |
| 250 | of·the·test·suite.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 250 | of·the·test·suite.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="9433284202-1">(</span><span·class="ss">server_b_SUITE</span><span·class="p"·data-group-id="9433284202-1">)</span><span·class="p">.</span><span·class="w"> |
| 251 | </span><span·class="p">-</span><span·class="na">compile</span><span·class="p"·data-group-id=" | 251 | </span><span·class="p">-</span><span·class="na">compile</span><span·class="p"·data-group-id="9433284202-2">(</span><span·class="ss">export_all</span><span·class="p"·data-group-id="9433284202-2">)</span><span·class="p">.</span><span·class="w"> |
| 252 | </span><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id=" | 252 | </span><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id="9433284202-3">(</span><span·class="s">"ct.hrl"</span><span·class="p"·data-group-id="9433284202-3">)</span><span·class="p">.</span><span·class="w"> |
| 253 | </span><span·class="c1">%%%·init·and·end·functions...</span><span·class="w"> | 253 | </span><span·class="c1">%%%·init·and·end·functions...</span><span·class="w"> |
| 254 | </span><span·class="nf">init_per_suite</span><span·class="p"·data-group-id=" | 254 | </span><span·class="nf">init_per_suite</span><span·class="p"·data-group-id="9433284202-4">(</span><span·class="n">Config</span><span·class="p"·data-group-id="9433284202-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 255 | ····</span><span·class="c1">%%·read·config·saved·by·previous·test·suite</span><span·class="w"> | 255 | ····</span><span·class="c1">%%·read·config·saved·by·previous·test·suite</span><span·class="w"> |
| 256 | ····</span><span·class="p"·data-group-id=" | 256 | ····</span><span·class="p"·data-group-id="9433284202-5">{</span><span·class="ss">server_a_SUITE</span><span·class="p">,</span><span·class="n">OldConfig</span><span·class="p"·data-group-id="9433284202-5">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc[·...·truncated·by·diffoscope;·len:·282,·SHA:·f3a3e77ac6cab3002e4a7bc009086b0a718aff5e2e96e91bb40f2a404f5f77b3·...·]-6">)</span><span·class="p">,</span><span·class="w"> |
| 257 | ····</span><span·class="c1">%%·extract·server·identity·(comes·from·server_a_SUITE)</span><span·class="w"> | 257 | ····</span><span·class="c1">%%·extract·server·identity·(comes·from·server_a_SUITE)</span><span·class="w"> |
| 258 | ····</span><span·class="n">ServerId</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">proplists</span><span·class="p">:</span><span·class="nf">get_value</span><span·class="p"·data-group-id=" | 258 | ····</span><span·class="n">ServerId</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">proplists</span><span·class="p">:</span><span·class="nf">get_value</span><span·class="p"·data-group-id="9433284202-7">(</span><span·class="ss">server_id</span><span·class="p">,</span><span·class="w">·</span><span·class="n">OldConfig</span><span·class="p"·data-group-id="9433284202-7">)</span><span·class="p">,</span><span·class="w"> |
| 259 | ····</span><span·class="n">SessionId</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">connect_to_server</span><span·class="p"·data-group-id="1366686854-8">(</span><span·class="n">ServerId</span><span·class="p"·data-group-id="1366686854-8">)</span><span·class="p">,</span><span·class="w"> | ||
| 260 | ····</span><span·class=" | 259 | ····</span><span·class="n">SessionId</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">connect_to_server</span><span·class="p"·data-group-id="9433284202-8">(</span><span·class="n">ServerId</span><span·class="p"·data-group-id="943328420[·...·truncated·by·diffoscope;·len:·30,·SHA:·c85438d304f976c900a53974877f9db13f2773fdbd35868d8fb22dbfbe5900f2·...·]</span><span·class="w"> |
| 260 | ····</span><span·class="p"·data-group-id="9433284202-9">[</span><span·class="p"·data-group-id="9433284202-10">{</span><span·class="ss">ids</span><span·class="p">,</span><span·class="p"·data-group-id="9433284202-11">{</span><span·class="n">ServerId</span><span·class="p">,</span><span·class="n">SessionId</span><span·class="p"·data-group-id="9433284202-11">}</span><span·class="p"·data-group-id="9433284202-10">}</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="n">Config</span><span·class="p"·data-group-id="9433284202-9">]</span><span·class="p">.</span><span·class="w"> | ||
| 261 | </span><span·class="nf">end_per_suite</span><span·class="p"·data-group-id=" | 261 | </span><span·class="nf">end_per_suite</span><span·class="p"·data-group-id="9433284202-12">(</span><span·class="n">Config</span><span·class="p"·data-group-id="9433284202-12">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 262 | ····</span><span·class="c1">%%·save·config·for·server_c_SUITE·(session_id·and·server_id)</span><span·class="w"> | 262 | ····</span><span·class="c1">%%·save·config·for·server_c_SUITE·(session_id·and·server_id)</span><span·class="w"> |
| 263 | ····</span><span·class="p"·data-group-id=" | 263 | ····</span><span·class="p"·data-group-id="9433284202-13">{</span><span·class="ss">save_config</span><span·class="p">,</span><span·class="n">Config</span><span·class="p"·data-group-id="9433284202-13">}</span><span·class="w"> |
| 264 | </span><span·class="c1">%%%·test·cases...</span><span·class="w"> | 264 | </span><span·class="c1">%%%·test·cases...</span><span·class="w"> |
| 265 | </span><span·class="nf">all</span><span·class="p"·data-group-id=" | 265 | </span><span·class="nf">all</span><span·class="p"·data-group-id="9433284202-14">(</span><span·class="p"·data-group-id="9433284202-14">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="p"·data-group-id="9433284202-15">[</span><span·class="ss">allocate</span><span·class="p">,[·...·truncated·by·diffoscope;·len:·106,·SHA:·b9f927f282abab6e93faa59f4eadd4821711f09f61359e37cf03eed9333677f1·...·]-15">]</span><span·class="p">.</span><span·class="w"> |
| 266 | </span><span·class="nf">allocate</span><span·class="p"·data-group-id=" | 266 | </span><span·class="nf">allocate</span><span·class="p"·data-group-id="9433284202-16">(</span><span·class="n">Config</span><span·class="p"·data-group-id="9433284202-16">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 267 | ····</span><span·class="p"·data-group-id=" | 267 | ····</span><span·class="p"·data-group-id="9433284202-17">{</span><span·class="n">ServerId</span><span·class="p">,</span><span·class="n">SessionId</span><span·class="p"·data-group-id="9433284202-17">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">pro[·...·truncated·by·diffoscope;·len:·269,·SHA:·a1ff6dfc68dfbdab9e8ec8b4a673bc3edc90c47799cdebecca6adaef807a0564·...·]-18">)</span><span·class="p">,</span><span·class="w"> |
| 268 | ····</span><span·class="p"·data-group-id=" | 268 | ····</span><span·class="p"·data-group-id="9433284202-19">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="n">Handle</span><span·class="p"·data-group-id="9433284202-19">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">allocate_re[·...·truncated·by·diffoscope;·len:·219,·SHA:·766ec8a6a3b99a534e3ce51e9cc68dcf8683821f5ea249a4f5041df354ff6ab3·...·]-20">)</span><span·class="p">,</span><span·class="w"> |
| 269 | ····</span><span·class="c1">%%·save·handle·for·deallocation·test</span><span·class="w"> | 269 | ····</span><span·class="c1">%%·save·handle·for·deallocation·test</span><span·class="w"> |
| 270 | ····</span><span·class="n">NewConfig</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 270 | ····</span><span·class="n">NewConfig</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="9433284202-21">[</span><span·class="p"·data-group-id="9433284202-22">{</span><span·class="ss">handle</span><span·class="p">,</span><span·class="n">Handle</span><span·class="p"·data-group-id="9433284202-22">}</span><span·class="p"·data-group-id="9433284202-21">]</span><span·class="p">,</span><span·class="w"> |
| 271 | ····</span><span·class="p"·data-group-id=" | 271 | ····</span><span·class="p"·data-group-id="9433284202-23">{</span><span·class="ss">save_config</span><span·class="p">,</span><span·class="n">NewConfig</span><span·class="p"·data-group-id="9433284202-23">}</span><span·class="p">.</span><span·class="w"> |
| 272 | </span><span·class="nf">deallocate</span><span·class="p"·data-group-id=" | 272 | </span><span·class="nf">deallocate</span><span·class="p"·data-group-id="9433284202-24">(</span><span·class="n">Config</span><span·class="p"·data-group-id="9433284202-24">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 273 | ····</span><span·class="p"·data-group-id=" | 273 | ····</span><span·class="p"·data-group-id="9433284202-25">{</span><span·class="n">ServerId</span><span·class="p">,</span><span·class="n">SessionId</span><span·class="p"·data-group-id="9433284202-25">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">pro[·...·truncated·by·diffoscope;·len:·269,·SHA:·a0da849157f1365d691ef40aa327e2247f80d59737e4fdb70d76c36864adcab4·...·]-26">)</span><span·class="p">,</span><span·class="w"> |
| 274 | ····</span><span·class="p"·data-group-id=" | 274 | ····</span><span·class="p"·data-group-id="9433284202-27">{</span><span·class="ss">allocate</span><span·class="p">,</span><span·class="n">OldConfig</span><span·class="p"·data-group-id="9433284202-27">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">pr[·...·truncated·by·diffoscope;·len:·279,·SHA:·2f2477cf6f83c1ae5a66f932a43b38f14d9e4e8bf8684db2696e5cd27438bfa3·...·]-28">)</span><span·class="p">,</span><span·class="w"> |
| 275 | ····</span><span·class="n">Handle</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">proplists</span><span·class="p">:</span><span·class="nf">get_value</span><span·class="p"·data-group-id=" | 275 | ····</span><span·class="n">Handle</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">proplists</span><span·class="p">:</span><span·class="nf">get_value</span><span·class="p"·data-group-id="9433284202-29">(</span><span·class="ss">handle</span><span·class="p">,</span><span·class="w">·</span><span·class="n">OldConfig</span><span·class="p"·data-group-id="9433284202-29">)</span><span·class="p">,</span><span·class="w"> |
| 276 | ····</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">deallocate_resource</span><span·class="p"·data-group-id=" | 276 | ····</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">deallocate_resource</span><span·class="p"·data-group-id="9433284202-30">(</span><span·class="n">ServerId</span><span·class="p">,</span><span·class="w">·</span><span·class="n">SessionId</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Handle</span><span·class="p"·data-group-id="9433284202-30">)</span><span·class="p">.</span></code></pre><p>To·save·<code·class="inline">Config</code>·data·from·a·test·case·that·is·to·be·skipped,·return·tuple |
| 277 | <code·class="inline">{skip_and_save,Reason,ConfigList}</code>.</p><p>The·result·is·that·the·test·case·is·skipped·with·<code·class="inline">Reason</code>·printed·to·the·log | 277 | <code·class="inline">{skip_and_save,Reason,ConfigList}</code>.</p><p>The·result·is·that·the·test·case·is·skipped·with·<code·class="inline">Reason</code>·printed·to·the·log |
| 278 | file·(as·described·earlier)·and·<code·class="inline">ConfigList</code>·is·saved·for·the·next·test·case. | 278 | file·(as·described·earlier)·and·<code·class="inline">ConfigList</code>·is·saved·for·the·next·test·case. |
| 279 | <code·class="inline">ConfigList</code>·can·be·read·using·<code·class="inline">proplists:get_value(saved_config,·Config)</code>,·as | 279 | <code·class="inline">ConfigList</code>·can·be·read·using·<code·class="inline">proplists:get_value(saved_config,·Config)</code>,·as |
| 280 | described·earlier.·<code·class="inline">skip_and_save</code>·can·also·be·returned·from·<code·class="inline">init_per_suite</code>. | 280 | described·earlier.·<code·class="inline">skip_and_save</code>·can·also·be·returned·from·<code·class="inline">init_per_suite</code>. |
| 281 | In·this·case,·the·saved·data·can·be·read·by·<code·class="inline">init_per_suite</code>·in·the·suite·that | 281 | In·this·case,·the·saved·data·can·be·read·by·<code·class="inline">init_per_suite</code>·in·the·suite·that |
| 282 | follows.</p><h2·id="sequences"·class="section-heading"> | 282 | follows.</p><h2·id="sequences"·class="section-heading"> |
| 283 | ··<a·href="#sequences"·class="hover-link"> | 283 | ··<a·href="#sequences"·class="hover-link"> |
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| 296 | following·tests·are·not·to·be·executed.·Typically,·if·the·<code·class="inline">save_config</code>·facility | 296 | following·tests·are·not·to·be·executed.·Typically,·if·the·<code·class="inline">save_config</code>·facility |
| 297 | is·used·and·a·test·case·that·is·expected·to·save·data·crashes,·the·following | 297 | is·used·and·a·test·case·that·is·expected·to·save·data·crashes,·the·following |
| 298 | case·cannot·run.·<code·class="inline">Common·Test</code>·offers·a·way·to·declare·such·dependencies,·called | 298 | case·cannot·run.·<code·class="inline">Common·Test</code>·offers·a·way·to·declare·such·dependencies,·called |
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| 164 | </h2> | 164 | </h2> |
| 165 | <p>Event·handlers·can·be·installed·by·an·<code·class="inline">event_handler</code>·start·flag | 165 | <p>Event·handlers·can·be·installed·by·an·<code·class="inline">event_handler</code>·start·flag |
| 166 | (<a·href="ct_run_cmd.html"><code·class="inline">ct_run</code></a>)·or·option·<a·href="ct.html#run_test/1"><code·class="inline">ct:run_test/1</code></a>,·where·the·argument | 166 | (<a·href="ct_run_cmd.html"><code·class="inline">ct_run</code></a>)·or·option·<a·href="ct.html#run_test/1"><code·class="inline">ct:run_test/1</code></a>,·where·the·argument |
| 167 | specifies·the·names·of·one·or·more·event·handler·modules.</p><p><em>Example:</em></p><p><code·class="inline">$·ct_run·-suite·test/my_SUITE·-event_handler·handlers/my_evh1·handlers/my_evh2·-pa·$PWD/handlers</code></p><p>To·pass·start·arguments·to·the·event·handler·init·function,·use·option | 167 | specifies·the·names·of·one·or·more·event·handler·modules.</p><p><em>Example:</em></p><p><code·class="inline">$·ct_run·-suite·test/my_SUITE·-event_handler·handlers/my_evh1·handlers/my_evh2·-pa·$PWD/handlers</code></p><p>To·pass·start·arguments·to·the·event·handler·init·function,·use·option |
| 168 | <code·class="inline">ct_run·-event_handler_init</code>·instead·of·<code·class="inline">-event_handler</code>.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>All·event·handler·modules·must·have·<code·class="inline">gen_event</code>·behavior.·These·modules·must | 168 | <code·class="inline">ct_run·-event_handler_init</code>·instead·of·<code·class="inline">-event_handler</code>.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>All·event·handler·modules·must·have·<code·class="inline">gen_event</code>·behavior.·These·modules·must |
| 169 | be·precompiled·and·their·locations·must·be·added·explicitly·to·the·Erlang·code | 169 | be·precompiled·and·their·locations·must·be·added·explicitly·to·the·Erlang·code |
| 170 | server·search·path·(as·in·the·previous·example).</p></section><p>An·event_handler·tuple·in·argument·<code·class="inline">Opts</code>·has·the·following·definition·(see | 170 | server·search·path·(as·in·the·previous·example).</p></section><p>An·event_handler·tuple·in·argument·<code·class="inline">Opts</code>·has·the·following·definition·(see |
| 171 | <a·href="ct.html#run_test/1"><code·class="inline">ct:run_test/1</code></a>):</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 171 | <a·href="ct.html#run_test/1"><code·class="inline">ct:run_test/1</code></a>):</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="4357269932-1">{</span><span·class="ss">event_handler</span><span·class="p">,</span><span·class="n">EventHandlers</span><span·class="p"·data-group-id="4357269932-1">}</span><span·class="w"> |
| 172 | </span><span·class="n">EventHandlers</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">EH</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id=" | 172 | </span><span·class="n">EventHandlers</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">EH</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id="4357269932-2">[</span><span·class="n">EH</span><span·class="p"·data-group-id="4357269932-2">]</span><span·class="w"> |
| 173 | </span><span·class="n">EH</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">atom</span><span·class="p"·data-group-id=" | 173 | </span><span·class="n">EH</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">atom</span><span·class="p"·data-group-id="4357269932-3">(</span><span·class="p"·data-group-id="4357269932-3">)</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id="4357269932-4">{</span><span·class="nf">atom</span><span·class="p"·data-group-i[·...·truncated·by·diffoscope;·len:·647,·SHA:·8db6dcf18d08c16f4d5ed1da9a7047cf85512d5b795a44ee8784bc05bd6487b9·...·]-6">}</span><span·class="w"> |
| 174 | </span><span·class="n">InitArgs</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 174 | </span><span·class="n">InitArgs</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="4357269932-9">[</span><span·class="nf">term</span><span·class="p"·data-group-id="4357269932-10">(</span><span·class="p"·data-group-id="4357269932-10">)</span><span·class="p"·data-group-id="4357269932-9">]</span></code></pre><p>In·the·following·example,·two·event·handlers·for·the·<code·class="inline">my_SUITE</code>·test·are |
| 175 | installed:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">ct</span><span·class="p">:</span><span·class="nf">run_test</span><span·class="p"·data-group-id=" | 175 | installed:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">ct</span><span·class="p">:</span><span·class="nf">run_test</span><span·class="p"·data-group-id="3729860058-1">(</span><span·class="p"·data-group-id="3729860058-2">[</span><span·class="p"·data-group-id="3729860058-3">{</span><span·class="ss">suite</span><span·class="p">,</span><span·class="s">"test/my_SUITE"</span><span·class="p"·data-group-[·...·truncated·by·diffoscope;·len:·873,·SHA:·7142aeb8503fec8c4c5776d89e1e18009a50add837d7f81123d266e53087ff49·...·]-1">)</span><span·class="p">.</span></code></pre><p>Event·handler·<code·class="inline">my_evh1</code>·is·started·with·<code·class="inline">[]</code>·as·argument·to·the·init·function. |
| 176 | Event·handler·<code·class="inline">my_evh2</code>·is·started·with·the·name·of·the·current·node·in·the·init | 176 | Event·handler·<code·class="inline">my_evh2</code>·is·started·with·the·name·of·the·current·node·in·the·init |
| 177 | argument·list.</p><p>Event·handlers·can·also·be·plugged·in·using·one·of·the·following | 177 | argument·list.</p><p>Event·handlers·can·also·be·plugged·in·using·one·of·the·following |
| 178 | <a·href="run_test_chapter.html#test_specifications">test·specification</a>·terms:</p><ul><li><code·class="inline">{event_handler,·EventHandlers}</code></li><li><code·class="inline">{event_handler,·EventHandlers,·InitArgs}</code></li><li><code·class="inline">{event_handler,·NodeRefs,·EventHandlers}</code></li><li><code·class="inline">{event_handler,·NodeRefs,·EventHandlers,·InitArgs}</code></li></ul><p><code·class="inline">EventHandlers</code>·is·a·list·of·module·names.·Before·a·test·session·starts,·the | 178 | <a·href="run_test_chapter.html#test_specifications">test·specification</a>·terms:</p><ul><li><code·class="inline">{event_handler,·EventHandlers}</code></li><li><code·class="inline">{event_handler,·EventHandlers,·InitArgs}</code></li><li><code·class="inline">{event_handler,·NodeRefs,·EventHandlers}</code></li><li><code·class="inline">{event_handler,·NodeRefs,·EventHandlers,·InitArgs}</code></li></ul><p><code·class="inline">EventHandlers</code>·is·a·list·of·module·names.·Before·a·test·session·starts,·the |
| 179 | init·function·of·each·plugged·in·event·handler·is·called·(with·the·<code·class="inline">InitArgs</code> | 179 | init·function·of·each·plugged·in·event·handler·is·called·(with·the·<code·class="inline">InitArgs</code> |
| 180 | list·as·argument·or·<code·class="inline">[]</code>·if·no·start·arguments·are·specified).</p><p>To·plug·in·a·handler·to·the·<code·class="inline">Common·Test</code>·Master·event·manager,·specify·<code·class="inline">master</code> | 180 | list·as·argument·or·<code·class="inline">[]</code>·if·no·start·arguments·are·specified).</p><p>To·plug·in·a·handler·to·the·<code·class="inline">Common·Test</code>·Master·event·manager,·specify·<code·class="inline">master</code> |
| 181 | as·the·node·in·<code·class="inline">NodeRefs</code>.</p><p>To·be·able·to·match·on·events,·the·event·handler·module·must·include·the·header | 181 | as·the·node·in·<code·class="inline">NodeRefs</code>.</p><p>To·be·able·to·match·on·events,·the·event·handler·module·must·include·the·header |
| 182 | file·<code·class="inline">ct_event.hrl</code>.·An·event·is·a·record·with·the·following·definition:</p><p><code·class="inline">#event{name,·node,·data}</code></p><ul><li><p><strong><code·class="inline">name</code></strong>·-·Label·(type)·of·the·event.</p></li><li><p><strong><code·class="inline">node</code></strong>·-·Name·of·the·node·that·the·event·originated·from·(only·relevant | 182 | file·<code·class="inline">ct_event.hrl</code>.·An·event·is·a·record·with·the·following·definition:</p><p><code·class="inline">#event{name,·node,·data}</code></p><ul><li><p><strong><code·class="inline">name</code></strong>·-·Label·(type)·of·the·event.</p></li><li><p><strong><code·class="inline">node</code></strong>·-·Name·of·the·node·that·the·event·originated·from·(only·relevant |
| Offset 320, 15 lines modified | Offset 320, 15 lines modified | ||
| 320 | ······<p·class="built-using"> | 320 | ······<p·class="built-using"> |
| 321 | ········Built·using | 321 | ········Built·using |
| 322 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 322 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 323 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 323 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 324 | ······</p> | 324 | ······</p> |
| 325 | <p>Copyright·©·1996-202 | 325 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 326 | ····</footer> | 326 | ····</footer> |
| 327 | ··</div> | 327 | ··</div> |
| 328 | </main> | 328 | </main> |
| 329 | </div> | 329 | </div> |
| 330 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 330 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 331 | ··<script> | 331 | ··<script> |
| 332 | ··let·initialized·=·false; | 332 | ··let·initialized·=·false; |
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| 127 | <p><a·href=""·id="top"></a></p><h2·id="test-suite-example"·class="section-heading"> | 127 | <p><a·href=""·id="top"></a></p><h2·id="test-suite-example"·class="section-heading"> |
| 128 | ··<a·href="#test-suite-example"·class="hover-link"> | 128 | ··<a·href="#test-suite-example"·class="hover-link"> |
| 129 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 129 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 130 | ··</a> | 130 | ··</a> |
| 131 | ··<span·class="text">Test·Suite·Example</span> | 131 | ··<span·class="text">Test·Suite·Example</span> |
| 132 | </h2> | 132 | </h2> |
| 133 | <p>The·following·example·test·suite·shows·some·tests·of·a·database·server:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 133 | <p>The·following·example·test·suite·shows·some·tests·of·a·database·server:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="0000517548-1">(</span><span·class="ss">db_data_type_SUITE</span><span·class="p"·data-group-id="0000517548-1">)</span><span·class="p">.</span><span·class="w"> |
| 134 | </span><span·class="w"> | 134 | </span><span·class="w"> |
| 135 | </span><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id=" | 135 | </span><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id="0000517548-2">(</span><span·class="s">"common_test/include/ct.hrl"</span><span·class="p"·data-group-id="0000517548-2">)</span><span·class="p">.</span><span·class="w"> |
| 136 | </span><span·class="c1">%%·Test·server·callbacks</span><span·class="w"> | 136 | </span><span·class="c1">%%·Test·server·callbacks</span><span·class="w"> |
| 137 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 137 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="0000517548-3">(</span><span·class="p"·data-group-id="0000517548-4">[</span><span·class="ss">suite</span><span·class="p">/</span><span·class="mi">0</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">all</span><span·class="p">/</span><span·class="mi">0</span><span·class="p">,</span><span·class="w"> |
| 138 | ·········</span><span·class="ss">init_per_suite</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">end_per_suite</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w"> | 138 | ·········</span><span·class="ss">init_per_suite</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">end_per_suite</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w"> |
| 139 | ·········</span><span·class="ss">init_per_testcase</span><span·class="p">/</span><span·class="mi">2</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">end_per_testcase</span><span·class="p">/</span><span·class="mi">2</span><span·class="p"·data-group-id=" | 139 | ·········</span><span·class="ss">init_per_testcase</span><span·class="p">/</span><span·class="mi">2</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">end_per_testcase</span><span·class="p">/</span><span·class="mi">2</span><span·class="p"·data-group-id="0000517548-4">]</span><span·class="p"·data-group-id="0000517548-3">)</span><span·class="p">.</span><span·class="w"> |
| 140 | </span><span·class="c1">%%·Test·cases</span><span·class="w"> | 140 | </span><span·class="c1">%%·Test·cases</span><span·class="w"> |
| 141 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 141 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="0000517548-5">(</span><span·class="p"·data-group-id="0000517548-6">[</span><span·class="ss">string</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">integer</span><span·class="p">/</span[·...·truncated·by·diffoscope;·len:·120,·SHA:·7c05372c41c0dc216250122712f8bd5e46821faf715bd7986a47989410a839d7·...·]-5">)</span><span·class="p">.</span><span·class="w"> |
| 142 | </span><span·class="w"> | 142 | </span><span·class="w"> |
| 143 | </span><span·class="p">-</span><span·class="na">define</span><span·class="p"·data-group-id=" | 143 | </span><span·class="p">-</span><span·class="na">define</span><span·class="p"·data-group-id="0000517548-7">(</span><span·class="n">CONNECT_STR</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"DSN=sqlserver;UID=alladin;PWD=sesame"</span><span·class="p"·data-group-id="0000517548-7">)</span><span·class="p">.</span><span·class="w"> |
| 144 | </span><span·class="c1">%%--------------------------------------------------------------------</span><span·class="w"> | 144 | </span><span·class="c1">%%--------------------------------------------------------------------</span><span·class="w"> |
| 145 | </span><span·class="c1">%%·COMMON·TEST·CALLBACK·FUNCTIONS</span><span·class="w"> | 145 | </span><span·class="c1">%%·COMMON·TEST·CALLBACK·FUNCTIONS</span><span·class="w"> |
| 146 | </span><span·class="c1">%%--------------------------------------------------------------------</span><span·class="w"> | 146 | </span><span·class="c1">%%--------------------------------------------------------------------</span><span·class="w"> |
| 147 | </span><span·class="c1">%%--------------------------------------------------------------------</span><span·class="w"> | 147 | </span><span·class="c1">%%--------------------------------------------------------------------</span><span·class="w"> |
| 148 | </span><span·class="c1">%%·Function:·suite()·->·Info</span><span·class="w"> | 148 | </span><span·class="c1">%%·Function:·suite()·->·Info</span><span·class="w"> |
| 149 | </span><span·class="c1">%%</span><span·class="w"> | 149 | </span><span·class="c1">%%</span><span·class="w"> |
| 150 | </span><span·class="c1">%%·Info·=·[tuple()]</span><span·class="w"> | 150 | </span><span·class="c1">%%·Info·=·[tuple()]</span><span·class="w"> |
| 151 | </span><span·class="c1">%%···List·of·key/value·pairs.</span><span·class="w"> | 151 | </span><span·class="c1">%%···List·of·key/value·pairs.</span><span·class="w"> |
| 152 | </span><span·class="c1">%%</span><span·class="w"> | 152 | </span><span·class="c1">%%</span><span·class="w"> |
| 153 | </span><span·class="c1">%%·Description:·Returns·list·of·tuples·to·set·default·properties</span><span·class="w"> | 153 | </span><span·class="c1">%%·Description:·Returns·list·of·tuples·to·set·default·properties</span><span·class="w"> |
| 154 | </span><span·class="c1">%%··············for·the·suite.</span><span·class="w"> | 154 | </span><span·class="c1">%%··············for·the·suite.</span><span·class="w"> |
| 155 | </span><span·class="c1">%%--------------------------------------------------------------------</span><span·class="w"> | 155 | </span><span·class="c1">%%--------------------------------------------------------------------</span><span·class="w"> |
| 156 | </span><span·class="nf">suite</span><span·class="p"·data-group-id=" | 156 | </span><span·class="nf">suite</span><span·class="p"·data-group-id="0000517548-8">(</span><span·class="p"·data-group-id="0000517548-8">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 157 | ····</span><span·class="p"·data-group-id=" | 157 | ····</span><span·class="p"·data-group-id="0000517548-9">[</span><span·class="p"·data-group-id="0000517548-10">{</span><span·class="ss">timetrap</span><span·class="p">,</span><span·class="p"·data-group-id="0000517548-11">{</span><span·class="ss">minutes</span><span·class="p">,</span><span·class="mi[·...·truncated·by·diffoscope;·len:·159,·SHA:·825f26991c17fe709ab14895c2f1f8e438f53e0dcf8eeb023dc81045743c703b·...·]-9">]</span><span·class="p">.</span><span·class="w"> |
| 158 | </span><span·class="c1">%%--------------------------------------------------------------------</span><span·class="w"> | 158 | </span><span·class="c1">%%--------------------------------------------------------------------</span><span·class="w"> |
| 159 | </span><span·class="c1">%%·Function:·init_per_suite(Config0)·->·Config1</span><span·class="w"> | 159 | </span><span·class="c1">%%·Function:·init_per_suite(Config0)·->·Config1</span><span·class="w"> |
| 160 | </span><span·class="c1">%%</span><span·class="w"> | 160 | </span><span·class="c1">%%</span><span·class="w"> |
| 161 | </span><span·class="c1">%%·Config0·=·Config1·=·[tuple()]</span><span·class="w"> | 161 | </span><span·class="c1">%%·Config0·=·Config1·=·[tuple()]</span><span·class="w"> |
| 162 | </span><span·class="c1">%%···A·list·of·key/value·pairs,·holding·the·test·case·configuration.</span><span·class="w"> | 162 | </span><span·class="c1">%%···A·list·of·key/value·pairs,·holding·the·test·case·configuration.</span><span·class="w"> |
| 163 | </span><span·class="c1">%%</span><span·class="w"> | 163 | </span><span·class="c1">%%</span><span·class="w"> |
| 164 | </span><span·class="c1">%%·Description:·Initialization·before·the·suite.</span><span·class="w"> | 164 | </span><span·class="c1">%%·Description:·Initialization·before·the·suite.</span><span·class="w"> |
| 165 | </span><span·class="c1">%%--------------------------------------------------------------------</span><span·class="w"> | 165 | </span><span·class="c1">%%--------------------------------------------------------------------</span><span·class="w"> |
| 166 | </span><span·class="nf">init_per_suite</span><span·class="p"·data-group-id=" | 166 | </span><span·class="nf">init_per_suite</span><span·class="p"·data-group-id="0000517548-12">(</span><span·class="n">Config</span><span·class="p"·data-group-id="0000517548-12">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 167 | ····</span><span·class="p"·data-group-id=" | 167 | ····</span><span·class="p"·data-group-id="0000517548-13">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Ref</span><span·class="p"·data-group-id="0000517548-13">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·c[·...·truncated·by·diffoscope;·len:·383,·SHA:·b295683022507a5a312bffcc6191dc3d81169b4473a1502875721b8286ad44b3·...·]-14">)</span><span·class="p">,</span><span·class="w"> |
| 168 | ····</span><span·class="n">TableName</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">db_lib</span><span·class="p">:</span><span·class="nf">unique_table_name</span><span·class="p"·data-group-id=" | 168 | ····</span><span·class="n">TableName</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">db_lib</span><span·class="p">:</span><span·class="nf">unique_table_name</span><span·class="p"·data-group-id="0000517548-16">(</span><span·class="p"·data-group-id="0000517548-16">)</span><span·class="p">,</span><span·class="w"> |
| 169 | ····</span><span·class="p"·data-group-id=" | 169 | ····</span><span·class="p"·data-group-id="0000517548-17">[</span><span·class="p"·data-group-id="0000517548-18">{</span><span·class="ss">con_ref</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Ref</span><span·class="w">·</span><span·class="p"·data-group-id="0000517548-18">}</s[·...·truncated·by·diffoscope;·len:·368,·SHA:·9e71b0317b551dfbdd6fedaab54be7c58e642181b10054fea7b7bb62c634782d·...·]-17">]</span><span·class="p">.</span><span·class="w"> |
| 170 | </span><span·class="c1">%%--------------------------------------------------------------------</span><span·class="w"> | 170 | </span><span·class="c1">%%--------------------------------------------------------------------</span><span·class="w"> |
| 171 | </span><span·class="c1">%%·Function:·end_per_suite(Config)·->·term()</span><span·class="w"> | 171 | </span><span·class="c1">%%·Function:·end_per_suite(Config)·->·term()</span><span·class="w"> |
| 172 | </span><span·class="c1">%%</span><span·class="w"> | 172 | </span><span·class="c1">%%</span><span·class="w"> |
| 173 | </span><span·class="c1">%%·Config·=·[tuple()]</span><span·class="w"> | 173 | </span><span·class="c1">%%·Config·=·[tuple()]</span><span·class="w"> |
| 174 | </span><span·class="c1">%%···A·list·of·key/value·pairs,·holding·the·test·case·configuration.</span><span·class="w"> | 174 | </span><span·class="c1">%%···A·list·of·key/value·pairs,·holding·the·test·case·configuration.</span><span·class="w"> |
| 175 | </span><span·class="c1">%%</span><span·class="w"> | 175 | </span><span·class="c1">%%</span><span·class="w"> |
| 176 | </span><span·class="c1">%%·Description:·Cleanup·after·the·suite.</span><span·class="w"> | 176 | </span><span·class="c1">%%·Description:·Cleanup·after·the·suite.</span><span·class="w"> |
| 177 | </span><span·class="c1">%%--------------------------------------------------------------------</span><span·class="w"> | 177 | </span><span·class="c1">%%--------------------------------------------------------------------</span><span·class="w"> |
| 178 | </span><span·class="nf">end_per_suite</span><span·class="p"·data-group-id=" | 178 | </span><span·class="nf">end_per_suite</span><span·class="p"·data-group-id="0000517548-20">(</span><span·class="n">Config</span><span·class="p"·data-group-id="0000517548-20">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 179 | ····</span><span·class="n">Ref</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">proplists</span><span·class="p">:</span><span·class="nf">get_value</span><span·class="p"·data-group-id=" | 179 | ····</span><span·class="n">Ref</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">proplists</span><span·class="p">:</span><span·class="nf">get_value</span><span·class="p"·data-group-id="0000517548-21">(</span><span·class="ss">con_ref</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Config</span><span·class="p"·data-group-id="0000517548-21">)</span><span·class="p">,</span><span·class="w"> |
| 180 | ····</span><span·class="nc">db</span><span·class="p">:</span><span·class="nf">disconnect</span><span·class="p"·data-group-id=" | 180 | ····</span><span·class="nc">db</span><span·class="p">:</span><span·class="nf">disconnect</span><span·class="p"·data-group-id="0000517548-22">(</span><span·class="n">Ref</span><span·class="p"·data-group-id="0000517548-22">)</span><span·class="p">,</span><span·class="w"> |
| 181 | ····</span><span·class="ss">ok</span><span·class="p">.</span><span·class="w"> | 181 | ····</span><span·class="ss">ok</span><span·class="p">.</span><span·class="w"> |
| 182 | </span><span·class="c1">%%--------------------------------------------------------------------</span><span·class="w"> | 182 | </span><span·class="c1">%%--------------------------------------------------------------------</span><span·class="w"> |
| 183 | </span><span·class="c1">%%·Function:·init_per_testcase(TestCase,·Config0)·->·Config1</span><span·class="w"> | 183 | </span><span·class="c1">%%·Function:·init_per_testcase(TestCase,·Config0)·->·Config1</span><span·class="w"> |
| 184 | </span><span·class="c1">%%</span><span·class="w"> | 184 | </span><span·class="c1">%%</span><span·class="w"> |
| 185 | </span><span·class="c1">%%·TestCase·=·atom()</span><span·class="w"> | 185 | </span><span·class="c1">%%·TestCase·=·atom()</span><span·class="w"> |
| 186 | </span><span·class="c1">%%···Name·of·the·test·case·that·is·about·to·run.</span><span·class="w"> | 186 | </span><span·class="c1">%%···Name·of·the·test·case·that·is·about·to·run.</span><span·class="w"> |
| 187 | </span><span·class="c1">%%·Config0·=·Config1·=·[tuple()]</span><span·class="w"> | 187 | </span><span·class="c1">%%·Config0·=·Config1·=·[tuple()]</span><span·class="w"> |
| 188 | </span><span·class="c1">%%···A·list·of·key/value·pairs,·holding·the·test·case·configuration.</span><span·class="w"> | 188 | </span><span·class="c1">%%···A·list·of·key/value·pairs,·holding·the·test·case·configuration.</span><span·class="w"> |
| 189 | </span><span·class="c1">%%</span><span·class="w"> | 189 | </span><span·class="c1">%%</span><span·class="w"> |
| 190 | </span><span·class="c1">%%·Description:·Initialization·before·each·test·case.</span><span·class="w"> | 190 | </span><span·class="c1">%%·Description:·Initialization·before·each·test·case.</span><span·class="w"> |
| 191 | </span><span·class="c1">%%--------------------------------------------------------------------</span><span·class="w"> | 191 | </span><span·class="c1">%%--------------------------------------------------------------------</span><span·class="w"> |
| 192 | </span><span·class="nf">init_per_testcase</span><span·class="p"·data-group-id=" | 192 | </span><span·class="nf">init_per_testcase</span><span·class="p"·data-group-id="0000517548-23">(</span><span·class="n">Case</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Config</span><span·class="p"·data-group-id="0000517548-23">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 193 | ····</span><span·class="n">Ref</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">proplists</span><span·class="p">:</span><span·class="nf">get_value</span><span·class="p"·data-group-id=" | 193 | ····</span><span·class="n">Ref</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">proplists</span><span·class="p">:</span><span·class="nf">get_value</span><span·class="p"·data-group-id="0000517548-24">(</span><span·class="ss">con_ref</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Config</span><span·class="p"·data-group-id="0000517548-24">)</span><span·class="p">,</span><span·class="w"> |
| 194 | ····</span><span·class="n">TableName</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">proplists</span><span·class="p">:</span><span·class="nf">get_value</span><span·class="p"·data-group-id=" | 194 | ····</span><span·class="n">TableName</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">proplists</span><span·class="p">:</span><span·class="nf">get_value</span><span·class="p"·data-group-id="0000517548-25">(</span><span·class="ss">table_name</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Config</span><span·class="p"·data-group-id="0000517548-25">)</span><span·class="p">,</span><span·class="w"> |
| 195 | ····</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">db</span><span·class="p">:</span><span·class="nf">create_table</span><span·class="p"·data-group-id=" | 195 | ····</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">db</span><span·class="p">:</span><span·class="nf">create_table</span><span·class="p"·data-group-id="0000517548-26">(</span><span·class="n">Ref</span><span·class="p">,</span><span·class="w">·</span><span·class="n">TableName</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">table_type</span><span·class="p"·data-group-id="0000517548-27"[·...·truncated·by·diffoscope;·len:·131,·SHA:·a71acfcd25ca6b63e8cc4be90b12eb4f695c69ae2bb5bf358ea9da830ec6e2b3·...·]-26">)</span><span·class="p">,</span><span·class="w"> |
| 196 | ····</span><span·class="n">Config</span><span·class="p">.</span><span·class="w"> | 196 | ····</span><span·class="n">Config</span><span·class="p">.</span><span·class="w"> |
| 197 | </span><span·class="c1">%%--------------------------------------------------------------------</span><span·class="w"> | 197 | </span><span·class="c1">%%--------------------------------------------------------------------</span><span·class="w"> |
| 198 | </span><span·class="c1">%%·Function:·end_per_testcase(TestCase,·Config)·->·term()</span><span·class="w"> | 198 | </span><span·class="c1">%%·Function:·end_per_testcase(TestCase,·Config)·->·term()</span><span·class="w"> |
| 199 | </span><span·class="c1">%%</span><span·class="w"> | 199 | </span><span·class="c1">%%</span><span·class="w"> |
| 200 | </span><span·class="c1">%%·TestCase·=·atom()</span><span·class="w"> | 200 | </span><span·class="c1">%%·TestCase·=·atom()</span><span·class="w"> |
| 201 | </span><span·class="c1">%%···Name·of·the·test·case·that·is·finished.</span><span·class="w"> | 201 | </span><span·class="c1">%%···Name·of·the·test·case·that·is·finished.</span><span·class="w"> |
| 202 | </span><span·class="c1">%%·Config·=·[tuple()]</span><span·class="w"> | 202 | </span><span·class="c1">%%·Config·=·[tuple()]</span><span·class="w"> |
| 203 | </span><span·class="c1">%%···A·list·of·key/value·pairs,·holding·the·test·case·configuration.</span><span·class="w"> | 203 | </span><span·class="c1">%%···A·list·of·key/value·pairs,·holding·the·test·case·configuration.</span><span·class="w"> |
| 204 | </span><span·class="c1">%%</span><span·class="w"> | 204 | </span><span·class="c1">%%</span><span·class="w"> |
| 205 | </span><span·class="c1">%%·Description:·Cleanup·after·each·test·case.</span><span·class="w"> | 205 | </span><span·class="c1">%%·Description:·Cleanup·after·each·test·case.</span><span·class="w"> |
| 206 | </span><span·class="c1">%%--------------------------------------------------------------------</span><span·class="w"> | 206 | </span><span·class="c1">%%--------------------------------------------------------------------</span><span·class="w"> |
| 207 | </span><span·class="nf">end_per_testcase</span><span·class="p"·data-group-id=" | 207 | </span><span·class="nf">end_per_testcase</span><span·class="p"·data-group-id="0000517548-28">(</span><span·class="p">_</span><span·class="n">Case</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Config</span><span·class="p"·data-group-id="0000517548-28">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 208 | ····</span><span·class="n">Ref</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">proplists</span><span·class="p">:</span><span·class="nf">get_value</span><span·class="p"·data-group-id=" | 208 | ····</span><span·class="n">Ref</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">proplists</span><span·class="p">:</span><span·class="nf">get_value</span><span·class="p"·data-group-id="0000517548-29">(</span><span·class="ss">con_ref</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Config</span><span·class="p"·data-group-id="0000517548-29">)</span><span·class="p">,</span><span·class="w"> |
| 209 | ····</span><span·class="n">TableName</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">proplists</span><span·class="p">:</span><span·class="nf">get_value</span><span·class="p"·data-group-id=" | 209 | ····</span><span·class="n">TableName</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">proplists</span><span·class="p">:</span><span·class="nf">get_value</span><span·class="p"·data-group-id="0000517548-30">(</span><span·class="ss">table_name</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Config</span><span·class="p"·data-group-id="0000517548-30">)</span><span·class="p">,</span><span·class="w"> |
| 210 | ····</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">db</span><span·class="p">:</span><span·class="nf">delete_table</span><span·class="p"·data-group-id=" | 210 | ····</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">db</span><span·class="p">:</span><span·class="nf">delete_table</span><span·class="p"·data-group-id="0000517548-31">(</span><span·class="n">Ref</span><span·class="p">,</span><span·class="w">·</span><span·class="n">TableName</span><span·class="p"·data-group-id="0000517548-31">)</span><span·class="p">,</span><span·class="w"> |
| 211 | ····</span><span·class="ss">ok</span><span·class="p">.</span><span·class="w"> | 211 | ····</span><span·class="ss">ok</span><span·class="p">.</span><span·class="w"> |
| 212 | </span><span·class="c1">%%--------------------------------------------------------------------</span><span·class="w"> | 212 | </span><span·class="c1">%%--------------------------------------------------------------------</span><span·class="w"> |
| 213 | </span><span·class="c1">%%·Function:·all()·->·GroupsAndTestCases</span><span·class="w"> | 213 | </span><span·class="c1">%%·Function:·all()·->·GroupsAndTestCases</span><span·class="w"> |
| 214 | </span><span·class="c1">%%</span><span·class="w"> | 214 | </span><span·class="c1">%%</span><span·class="w"> |
| 215 | </span><span·class="c1">%%·GroupsAndTestCases·=·[{group,GroupName}·|·TestCase]</span><span·class="w"> | 215 | </span><span·class="c1">%%·GroupsAndTestCases·=·[{group,GroupName}·|·TestCase]</span><span·class="w"> |
| 216 | </span><span·class="c1">%%·GroupName·=·atom()</span><span·class="w"> | 216 | </span><span·class="c1">%%·GroupName·=·atom()</span><span·class="w"> |
| 217 | </span><span·class="c1">%%···Name·of·a·test·case·group.</span><span·class="w"> | 217 | </span><span·class="c1">%%···Name·of·a·test·case·group.</span><span·class="w"> |
| 218 | </span><span·class="c1">%%·TestCase·=·atom()</span><span·class="w"> | 218 | </span><span·class="c1">%%·TestCase·=·atom()</span><span·class="w"> |
| 219 | </span><span·class="c1">%%···Name·of·a·test·case.</span><span·class="w"> | 219 | </span><span·class="c1">%%···Name·of·a·test·case.</span><span·class="w"> |
| 220 | </span><span·class="c1">%%</span><span·class="w"> | 220 | </span><span·class="c1">%%</span><span·class="w"> |
| 221 | </span><span·class="c1">%%·Description:·Returns·the·list·of·groups·and·test·cases·that</span><span·class="w"> | 221 | </span><span·class="c1">%%·Description:·Returns·the·list·of·groups·and·test·cases·that</span><span·class="w"> |
| 222 | </span><span·class="c1">%%··············are·to·be·executed.</span><span·class="w"> | 222 | </span><span·class="c1">%%··············are·to·be·executed.</span><span·class="w"> |
| 223 | </span><span·class="c1">%%--------------------------------------------------------------------</span><span·class="w"> | 223 | </span><span·class="c1">%%--------------------------------------------------------------------</span><span·class="w"> |
| 224 | </span><span·class="nf">all</span><span·class="p"·data-group-id=" | 224 | </span><span·class="nf">all</span><span·class="p"·data-group-id="0000517548-32">(</span><span·class="p"·data-group-id="0000517548-32">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 225 | ····</span><span·class="p"·data-group-id=" | 225 | ····</span><span·class="p"·data-group-id="0000517548-33">[</span><span·class="ss">string</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">integer</span><span·class="p"·data-group-id="0000517548-33">]</span><span·class="p">.</span><span·class="w"> |
| 226 | </span><span·class="c1">%%--------------------------------------------------------------------</span><span·class="w"> | 226 | </span><span·class="c1">%%--------------------------------------------------------------------</span><span·class="w"> |
| 227 | </span><span·class="c1">%%·TEST·CASES</span><span·class="w"> | 227 | </span><span·class="c1">%%·TEST·CASES</span><span·class="w"> |
| 228 | </span><span·class="c1">%%--------------------------------------------------------------------</span><span·class="w"> | 228 | </span><span·class="c1">%%--------------------------------------------------------------------</span><span·class="w"> |
| 229 | </span><span·class="nf">string</span><span·class="p"·data-group-id=" | 229 | </span><span·class="nf">string</span><span·class="p"·data-group-id="0000517548-34">(</span><span·class="n">Config</span><span·class="p"·data-group-id="0000517548-34">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 230 | ····</span><span·class="nf">insert_and_lookup</span><span·class="p"·data-group-id=" | 230 | ····</span><span·class="nf">insert_and_lookup</span><span·class="p"·data-group-id="0000517548-35">(</span><span·class="ss">dummy_key</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"Dummy·string"</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Config</span><span·class="p"·data-group-i[·...·truncated·by·diffoscope;·len:·13,·SHA:·7930f875d3007794dd9bec1aa4311e83e462055fe8137ab2e91bf89faad4b1e6·...·]-35">)</span><span·class="p">.</span><span·class="w"> |
| 231 | </span><span·class="nf">integer</span><span·class="p"·data-group-id=" | 231 | </span><span·class="nf">integer</span><span·class="p"·data-group-id="0000517548-36">(</span><span·class="n">Config</span><span·class="p"·data-group-id="0000517548-36">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 232 | ····</span><span·class="nf">insert_and_lookup</span><span·class="p"·data-group-id=" | 232 | ····</span><span·class="nf">insert_and_lookup</span><span·class="p"·data-group-id="0000517548-37">(</span><span·class="ss">dummy_key</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">42</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Config</span><span·class="p"·data-group-id="0000517548-37">)</span><span·class="p">.</span><span·class="w"> |
| 233 | </span><span·class="nf">insert_and_lookup</span><span·class="p"·data-group-id=" | 233 | </span><span·class="nf">insert_and_lookup</span><span·class="p"·data-group-id="0000517548-38">(</span><span·class="n">Key</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Value</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Config</span><span·class="p"·data-group-id="0000517548-38">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 234 | ····</span><span·class="n">Ref</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">proplists</span><span·class="p">:</span><span·class="nf">get_value</span><span·class="p"·data-group-id=" | 234 | ····</span><span·class="n">Ref</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">proplists</span><span·class="p">:</span><span·class="nf">get_value</span><span·class="p"·data-group-id="0000517548-39">(</span><span·class="ss">con_ref</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Config</span><span·class="p"·data-group-id="0000517548-39">)</span><span·class="p">,</span><span·class="w"> |
| 235 | ····</span><span·class="n">TableName</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">proplists</span><span·class="p">:</span><span·class="nf">get_value</span><span·class="p"·data-group-id=" | 235 | ····</span><span·class="n">TableName</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">proplists</span><span·class="p">:</span><span·class="nf">get_value</span><span·class="p"·data-group-id="0000517548-40">(</span><span·class="ss">table_name</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Config</span><span·class="p"·data-group-id="0000517548-40">)</span><span·class="p">,</span><span·class="w"> |
| 236 | ····</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">db</span><span·class="p">:</span><span·class="nf">insert</span><span·class="p"·data-group-id=" | 236 | ····</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">db</span><span·class="p">:</span><span·class="nf">insert</span><span·class="p"·data-group-id="0000517548-41">(</span><span·class="n">Ref</span><span·class="p">,</span><span·class="w">·</span><span·class="n">TableName</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Key</span><span·class="p">,</span><span·class="w">·</span><span[·...·truncated·by·diffoscope;·len:·64,·SHA:·bd5d887895e1c6a11bf80400c6239017b95a6b812372c0465344e1c1797fd6a7·...·]-41">)</span><span·class="p">,</span><span·class="w"> |
| 237 | ····</span><span·class="p"·data-group-id=" | 237 | ····</span><span·class="p"·data-group-id="0000517548-42">[</span><span·class="n">Value</span><span·class="p"·data-group-id="0000517548-42">]</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">db</span><span·class="p">:</span><span·class="nf">lookup</span[·...·truncated·by·diffoscope;·len:·276,·SHA:·ad6e471a0c7c37a8ea0dff0b7a5bfccf21daa1082d96a117baaf93c1df80dcb6·...·]-43">)</span><span·class="p">,</span><span·class="w"> |
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| 165 | ··</a> | 165 | ··</a> |
| 166 | ··<span·class="text">A·Simple·Test·Suite</span> | 166 | ··<span·class="text">A·Simple·Test·Suite</span> |
| 167 | </h2> | 167 | </h2> |
| 168 | <p>As·shown·in·section·<a·href="basics_chapter.html#External_Interfaces">Common·Test·Basics</a>, | 168 | <p>As·shown·in·section·<a·href="basics_chapter.html#External_Interfaces">Common·Test·Basics</a>, |
| 169 | the·test·suite·module·implements·<a·href="ct_suite.html">callback·functions</a>·(mandatory | 169 | the·test·suite·module·implements·<a·href="ct_suite.html">callback·functions</a>·(mandatory |
| 170 | or·optional)·for·various·purposes,·for·example:</p><ul><li>Init/end·configuration·function·for·the·test·suite</li><li>Init/end·configuration·function·for·a·test·case</li><li>Init/end·configuration·function·for·a·test·case·group</li><li>Test·cases</li></ul><p>The·configuration·functions·are·optional.·The·following·example·is·a·test·suite | 170 | or·optional)·for·various·purposes,·for·example:</p><ul><li>Init/end·configuration·function·for·the·test·suite</li><li>Init/end·configuration·function·for·a·test·case</li><li>Init/end·configuration·function·for·a·test·case·group</li><li>Test·cases</li></ul><p>The·configuration·functions·are·optional.·The·following·example·is·a·test·suite |
| 171 | without·configuration·functions,·including·one·simple·test·case,·to·check·that | 171 | without·configuration·functions,·including·one·simple·test·case,·to·check·that |
| 172 | module·<code·class="inline">mymod</code>·exists·(that·is,·can·be·successfully·loaded·by·the·code·server):</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="8 | 172 | module·<code·class="inline">mymod</code>·exists·(that·is,·can·be·successfully·loaded·by·the·code·server):</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="8948546158-1">(</span><span·class="ss">my1st_SUITE</span><span·class="p"·data-group-id="8948546158-1">)</span><span·class="p">.</span><span·class="w"> |
| 173 | </span><span·class="p">-</span><span·class="na">compile</span><span·class="p"·data-group-id="8 | 173 | </span><span·class="p">-</span><span·class="na">compile</span><span·class="p"·data-group-id="8948546158-2">(</span><span·class="ss">export_all</span><span·class="p"·data-group-id="8948546158-2">)</span><span·class="p">.</span><span·class="w"> |
| 174 | </span><span·class="nf">all</span><span·class="p"·data-group-id="8 | 174 | </span><span·class="nf">all</span><span·class="p"·data-group-id="8948546158-3">(</span><span·class="p"·data-group-id="8948546158-3">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 175 | ····</span><span·class="p"·data-group-id="8 | 175 | ····</span><span·class="p"·data-group-id="8948546158-4">[</span><span·class="ss">mod_exists</span><span·class="p"·data-group-id="8948546158-4">]</span><span·class="p">.</span><span·class="w"> |
| 176 | </span><span·class="nf">mod_exists</span><span·class="p"·data-group-id="8 | 176 | </span><span·class="nf">mod_exists</span><span·class="p"·data-group-id="8948546158-5">(</span><span·class="p">_</span><span·class="p"·data-group-id="8948546158-5">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 177 | ····</span><span·class="p"·data-group-id="8 | 177 | ····</span><span·class="p"·data-group-id="8948546158-6">{</span><span·class="ss">module</span><span·class="p">,</span><span·class="ss">mymod</span><span·class="p"·data-group-id="8948546158-6">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">code</span[·...·truncated·by·diffoscope;·len:·181,·SHA:·2f6ed4bcf38bf9497be003ead97de6b37c4ba489e1e92fa5269cf97a587ce43a·...·]-7">)</span><span·class="p">.</span></code></pre><p>If·the·operation·fails,·a·bad·match·error·occurs·that·terminates·the·test·case.</p><h2·id="a-test-suite-with-configuration-functions"·class="section-heading"> |
| 178 | ··<a·href="#a-test-suite-with-configuration-functions"·class="hover-link"> | 178 | ··<a·href="#a-test-suite-with-configuration-functions"·class="hover-link"> |
| 179 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 179 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 180 | ··</a> | 180 | ··</a> |
| 181 | ··<span·class="text">A·Test·Suite·with·Configuration·Functions</span> | 181 | ··<span·class="text">A·Test·Suite·with·Configuration·Functions</span> |
| 182 | </h2> | 182 | </h2> |
| 183 | <p>If·you·need·to·perform·configuration·operations·to·run·your·test,·you·can | 183 | <p>If·you·need·to·perform·configuration·operations·to·run·your·test,·you·can |
| 184 | implement·configuration·functions·in·your·suite.·The·result·from·a·configuration | 184 | implement·configuration·functions·in·your·suite.·The·result·from·a·configuration |
| 185 | function·is·configuration·data,·or·<code·class="inline">Config</code>.·This·is·a·list·of·key-value·tuples | 185 | function·is·configuration·data,·or·<code·class="inline">Config</code>.·This·is·a·list·of·key-value·tuples |
| 186 | that·get·passed·from·the·configuration·function·to·the·test·cases·(possibly | 186 | that·get·passed·from·the·configuration·function·to·the·test·cases·(possibly |
| 187 | through·configuration·functions·on·"lower·level").·The·data·flow·looks·as | 187 | through·configuration·functions·on·"lower·level").·The·data·flow·looks·as |
| 188 | follows:</p><p><img·src="assets/config.gif"·alt="Configuration·Data·Flow·in·a·Suite"·title="Configuration·Data·Flow·in·a·Suite"/></p><p>The·following·example·shows·a·test·suite·that·uses·configuration·functions·to | 188 | follows:</p><p><img·src="assets/config.gif"·alt="Configuration·Data·Flow·in·a·Suite"·title="Configuration·Data·Flow·in·a·Suite"/></p><p>The·following·example·shows·a·test·suite·that·uses·configuration·functions·to |
| 189 | open·and·close·a·log·file·for·the·test·cases·(an·operation·that·is·unnecessary | 189 | open·and·close·a·log·file·for·the·test·cases·(an·operation·that·is·unnecessary |
| 190 | and·irrelevant·to·perform·by·each·test·case):</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 190 | and·irrelevant·to·perform·by·each·test·case):</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="2439971430-1">(</span><span·class="ss">check_log_SUITE</span><span·class="p"·data-group-id="2439971430-1">)</span><span·class="p">.</span><span·class="w"> |
| 191 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 191 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="2439971430-2">(</span><span·class="p"·data-group-id="2439971430-3">[</span><span·class="ss">all</span><span·class="p">/</span><span·class="mi">0</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">init_per_suite</span><span·class="p">/</[·...·truncated·by·diffoscope;·len:·258,·SHA:·fe9665659a32f5d6fa34066e8f147592890d8c73fad8e475f1c8bb79f35639e2·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 192 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 192 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="2439971430-4">(</span><span·class="p"·data-group-id="2439971430-5">[</span><span·class="ss">check_restart_result</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">check_no_errors</span><[·...·truncated·by·diffoscope;·len:·142,·SHA:·6249e5c0a60f175aa5d4e7bea00bfc3eb36b1219190e5353dc21ce98591e1fac·...·]-4">)</span><span·class="p">.</span><span·class="w"> |
| 193 | </span><span·class="w"> | 193 | </span><span·class="w"> |
| 194 | </span><span·class="p">-</span><span·class="na">define</span><span·class="p"·data-group-id=" | 194 | </span><span·class="p">-</span><span·class="na">define</span><span·class="p"·data-group-id="2439971430-6">(</span><span·class="nf">value</span><span·class="p"·data-group-id="2439971430-7">(</span><span·class="n">Key</span><span·class="p">,</span><span·class="n">Config</span><span·class="p"·data-group-id="2439971430-7">)</span><span·class="p">,</s[·...·truncated·by·diffoscope;·len:·344,·SHA:·ded2d0ee4d99da8fbaba1953d65aab22c34704749600aa8765480c066c8e7669·...·]-6">)</span><span·class="p">.</span><span·class="w"> |
| 195 | </span><span·class="nf">all</span><span·class="p"·data-group-id=" | 195 | </span><span·class="nf">all</span><span·class="p"·data-group-id="2439971430-9">(</span><span·class="p"·data-group-id="2439971430-9">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="p"·data-group-id="2439971430-10">[</span><span·class="ss">check_restart_result</span><span·c[·...·truncated·by·diffoscope;·len:·121,·SHA:·b437004e45fc9a9314643d104fe5b6d9f0f7992d1f0fee25b156393bef4321b8·...·]-10">]</span><span·class="p">.</span><span·class="w"> |
| 196 | </span><span·class="nf">init_per_suite</span><span·class="p"·data-group-id=" | 196 | </span><span·class="nf">init_per_suite</span><span·class="p"·data-group-id="2439971430-11">(</span><span·class="n">InitConfigData</span><span·class="p"·data-group-id="2439971430-11">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 197 | ····</span><span·class="p"·data-group-id=" | 197 | ····</span><span·class="p"·data-group-id="2439971430-12">[</span><span·class="p"·data-group-id="2439971430-13">{</span><span·class="ss">logref</span><span·class="p">,</span><span·class="nf">open_log</span><span·class="p"·data-group-id="2439971430-14">(</span><span·class="p"·data-group-id="24399714[·...·truncated·by·diffoscope;·len:·219,·SHA:·b3998fc7c8a846efa86e113d6c978e9dd99ad48e4f04136fe69a3f83e01a5cb2·...·]-12">]</span><span·class="p">.</span><span·class="w"> |
| 198 | </span><span·class="nf">end_per_suite</span><span·class="p"·data-group-id=" | 198 | </span><span·class="nf">end_per_suite</span><span·class="p"·data-group-id="2439971430-15">(</span><span·class="n">ConfigData</span><span·class="p"·data-group-id="2439971430-15">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 199 | ····</span><span·class="nf">close_log</span><span·class="p"·data-group-id=" | 199 | ····</span><span·class="nf">close_log</span><span·class="p"·data-group-id="2439971430-16">(</span><span·class="o">?</span><span·class="nf">value</span><span·class="p"·data-group-id="2439971430-17">(</span><span·class="ss">logref</span><span·class="p">,</span><span·class="w">·</span><span·class="n">ConfigData</span><span·class="p"[·...·truncated·by·diffoscope;·len:·80,·SHA:·53f1cec29f331faf0c2b470768e042a40ad1e6943bb3cea7c116ca37efa33754·...·]-16">)</span><span·class="p">.</span><span·class="w"> |
| 200 | </span><span·class="nf">check_restart_result</span><span·class="p"·data-group-id=" | 200 | </span><span·class="nf">check_restart_result</span><span·class="p"·data-group-id="2439971430-18">(</span><span·class="n">ConfigData</span><span·class="p"·data-group-id="2439971430-18">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 201 | ····</span><span·class="n">TestData</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">read_log</span><span·class="p"·data-group-id=" | 201 | ····</span><span·class="n">TestData</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">read_log</span><span·class="p"·data-group-id="2439971430-19">(</span><span·class="ss">restart</span><span·class="p">,</span><span·class="w">·</span><span·class="o">?</span><span·class="nf">value</span><span·class="p"·data-group-id="2439971430-20">(</span><span·class="ss">logref</span><span·class="p">,[·...·truncated·by·diffoscope;·len:·159,·SHA:·5cbf14a6a678f68fa647a729e6dfd2952decb0b270e131b149d29977e2348fac·...·]-19">)</span><span·class="p">,</span><span·class="w"> |
| 202 | ····</span><span·class="p"·data-group-id=" | 202 | ····</span><span·class="p"·data-group-id="2439971430-21">{</span><span·class="ss">match</span><span·class="p">,</span><span·class="p">_</span><span·class="n">Line</span><span·class="p"·data-group-id="2439971430-21">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><sp[·...·truncated·by·diffoscope;·len:·258,·SHA:·117ac29e44c28db29f99447a06f9bc86455008f773d8912848e08648b8159529·...·]-22">)</span><span·class="p">.</span><span·class="w"> |
| 203 | </span><span·class="nf">check_no_errors</span><span·class="p"·data-group-id=" | 203 | </span><span·class="nf">check_no_errors</span><span·class="p"·data-group-id="2439971430-23">(</span><span·class="n">ConfigData</span><span·class="p"·data-group-id="2439971430-23">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 204 | ····</span><span·class="n">TestData</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">read_log</span><span·class="p"·data-group-id=" | 204 | ····</span><span·class="n">TestData</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">read_log</span><span·class="p"·data-group-id="2439971430-24">(</span><span·class="ss">all</span><span·class="p">,</span><span·class="w">·</span><span·class="o">?</span><span·class="nf">value</span><span·class="p"·data-group-id="2439971430-25">(</span><span·class="ss">logref</span><span·class="p">,</sp[·...·truncated·by·diffoscope;·len:·155,·SHA:·f4c392367619cdf691f4d4368ae8141a88576241268e9cd75cace09ceccbd045·...·]-24">)</span><span·class="p">,</span><span·class="w"> |
| 205 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nf">search_for</span><span·class="p"·data-group-id=" | 205 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nf">search_for</span><span·class="p"·data-group-id="2439971430-26">(</span><span·class="s">"error"</span><span·class="p">,</span><span·class="w">·</span><span·class="n">TestData</span><span·class="p"·data-group-id="2439971430-26">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 206 | ········</span><span·class="p"·data-group-id=" | 206 | ········</span><span·class="p"·data-group-id="2439971430-27">{</span><span·class="ss">match</span><span·class="p">,</span><span·class="n">Line</span><span·class="p"·data-group-id="2439971430-27">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="nc">ct</sp[·...·truncated·by·diffoscope;·len:·351,·SHA:·49b7b4dfbda672859a37ceb02522e87f2b2d3444a58930369c1f73705ac7454e·...·]-28">)</span><span·class="p">;</span><span·class="w"> |
| 207 | ········</span><span·class="ss">nomatch</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">ok</span><span·class="w"> | 207 | ········</span><span·class="ss">nomatch</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">ok</span><span·class="w"> |
| 208 | ····</span><span·class="k">end</span><span·class="p">.</span></code></pre><p>The·test·cases·verify,·by·parsing·a·log·file,·that·our·SUT·has·performed·a | 208 | ····</span><span·class="k">end</span><span·class="p">.</span></code></pre><p>The·test·cases·verify,·by·parsing·a·log·file,·that·our·SUT·has·performed·a |
| 209 | successful·restart·and·that·no·unexpected·errors·are·printed.</p><p>To·execute·the·test·cases·in·the·recent·test·suite,·type·the·following·on·the | 209 | successful·restart·and·that·no·unexpected·errors·are·printed.</p><p>To·execute·the·test·cases·in·the·recent·test·suite,·type·the·following·on·the |
| 210 | UNIX/Linux·command·line·(assuming·that·the·suite·module·is·in·the·current | 210 | UNIX/Linux·command·line·(assuming·that·the·suite·module·is·in·the·current |
| 211 | working·directory):</p><pre><code·class="text">$·ct_run·-dir·.</code></pre><p>or:</p><pre><code·class="text">$·ct_run·-suite·check_log_SUITE</code></pre><p>To·use·the·Erlang·shell·to·run·our·test,·you·can·evaluate·the·following·call:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">ct</span><span·class="p">:</span><span·class="nf">run_test</span><span·class="p"·data-group-id=" | 211 | working·directory):</p><pre><code·class="text">$·ct_run·-dir·.</code></pre><p>or:</p><pre><code·class="text">$·ct_run·-suite·check_log_SUITE</code></pre><p>To·use·the·Erlang·shell·to·run·our·test,·you·can·evaluate·the·following·call:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">ct</span><span·class="p">:</span><span·class="nf">run_test</span><span·class="p"·data-group-id="3884542088-1">(</span><span·class="p"·data-group-id="3884542088-2">[</span><span·class="p"·data-group-id="3884542088-3">{</span><span·class="ss">dir</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"."</span><span·class="p"·d[·...·truncated·by·diffoscope;·len:·795,·SHA:·8ce4594656c79d6c4f4df059bf42c329337c80a857f4cde8a31781cd6844dc3d·...·]-1">)</span><span·class="p">.</span></code></pre><p>The·result·from·running·the·test·is·printed·in·log·files·in·HTML·format·(stored |
| 212 | in·unique·log·directories·on·a·different·level).·The·following·illustration | 212 | in·unique·log·directories·on·a·different·level).·The·following·illustration |
| 213 | shows·the·log·file·structure:</p><p><img·src="assets/html_logs.gif"·alt="HTML·Log·File·Structure"·title="HTML·Log·File·Structure"/></p><h2·id="questions-and-answers"·class="section-heading"> | 213 | shows·the·log·file·structure:</p><p><img·src="assets/html_logs.gif"·alt="HTML·Log·File·Structure"·title="HTML·Log·File·Structure"/></p><h2·id="questions-and-answers"·class="section-heading"> |
| 214 | ··<a·href="#questions-and-answers"·class="hover-link"> | 214 | ··<a·href="#questions-and-answers"·class="hover-link"> |
| 215 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 215 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 216 | ··</a> | 216 | ··</a> |
| 217 | ··<span·class="text">Questions·and·Answers</span> | 217 | ··<span·class="text">Questions·and·Answers</span> |
| 218 | </h2> | 218 | </h2> |
| Offset 293, 15 lines modified | Offset 293, 15 lines modified | ||
| 293 | ······<p·class="built-using"> | 293 | ······<p·class="built-using"> |
| 294 | ········Built·using | 294 | ········Built·using |
| 295 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 295 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 296 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 296 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 297 | ······</p> | 297 | ······</p> |
| 298 | <p>Copyright·©·1996-202 | 298 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 299 | ····</footer> | 299 | ····</footer> |
| 300 | ··</div> | 300 | ··</div> |
| 301 | </main> | 301 | </main> |
| 302 | </div> | 302 | </div> |
| 303 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 303 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 304 | ··<script> | 304 | ··<script> |
| 305 | ··let·initialized·=·false; | 305 | ··let·initialized·=·false; |
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| 186 | ······<p·class="built-using"> | 186 | ······<p·class="built-using"> |
| 187 | ········Built·using | 187 | ········Built·using |
| 188 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 188 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 189 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 189 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 190 | ······</p> | 190 | ······</p> |
| 191 | <p>Copyright·©·1996-202 | 191 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 192 | ····</footer> | 192 | ····</footer> |
| 193 | ··</div> | 193 | ··</div> |
| 194 | </main> | 194 | </main> |
| 195 | </div> | 195 | </div> |
| 196 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 196 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 197 | ··<script> | 197 | ··<script> |
| 198 | ··let·initialized·=·false; | 198 | ··let·initialized·=·false; |
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| 200 | ······<p·class="built-using"> | 200 | ······<p·class="built-using"> |
| 201 | ········Built·using | 201 | ········Built·using |
| 202 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 202 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 203 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 203 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 204 | ······</p> | 204 | ······</p> |
| 205 | <p>Copyright·©·1996-202 | 205 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 206 | ····</footer> | 206 | ····</footer> |
| 207 | ··</div> | 207 | ··</div> |
| 208 | </main> | 208 | </main> |
| 209 | </div> | 209 | </div> |
| 210 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 210 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 211 | ··<script> | 211 | ··<script> |
| 212 | ··let·initialized·=·false; | 212 | ··let·initialized·=·false; |
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| 2848 | ······<p·class="built-using"> | 2848 | ······<p·class="built-using"> |
| 2849 | ········Built·using | 2849 | ········Built·using |
| 2850 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 2850 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 2851 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 2851 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 2852 | ······</p> | 2852 | ······</p> |
| 2853 | <p>Copyright·©·1996-202 | 2853 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 2854 | ····</footer> | 2854 | ····</footer> |
| 2855 | ··</div> | 2855 | ··</div> |
| 2856 | </main> | 2856 | </main> |
| 2857 | </div> | 2857 | </div> |
| 2858 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 2858 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 2859 | ··<script> | 2859 | ··<script> |
| 2860 | ··let·initialized·=·false; | 2860 | ··let·initialized·=·false; |
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| 141 | ······<p·class="built-using"> | 141 | ······<p·class="built-using"> |
| 142 | ········Built·using | 142 | ········Built·using |
| 143 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 143 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 144 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 144 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 145 | ······</p> | 145 | ······</p> |
| 146 | <p>Copyright·©·1996-202 | 146 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 147 | ····</footer> | 147 | ····</footer> |
| 148 | ··</div> | 148 | ··</div> |
| 149 | </main> | 149 | </main> |
| 150 | </div> | 150 | </div> |
| 151 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 151 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 152 | ··<script> | 152 | ··<script> |
| 153 | ··let·initialized·=·false; | 153 | ··let·initialized·=·false; |
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| 232 | ······<p·class="built-using"> | 232 | ······<p·class="built-using"> |
| 233 | ········Built·using | 233 | ········Built·using |
| 234 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 234 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 235 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 235 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 236 | ······</p> | 236 | ······</p> |
| 237 | <p>Copyright·©·1996-202 | 237 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 238 | ····</footer> | 238 | ····</footer> |
| 239 | ··</div> | 239 | ··</div> |
| 240 | </main> | 240 | </main> |
| 241 | </div> | 241 | </div> |
| 242 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 242 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 243 | ··<script> | 243 | ··<script> |
| 244 | ··let·initialized·=·false; | 244 | ··let·initialized·=·false; |
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| 125 | ····<small·class="app-vsn"·translate="no">(common_test·v1.28)</small> | 125 | ····<small·class="app-vsn"·translate="no">(common_test·v1.28)</small> |
| 126 | ··</h1> | 126 | ··</h1> |
| 127 | ····<section·id="moduledoc"> | 127 | ····<section·id="moduledoc"> |
| 128 | <p>Callback·module·for·<a·href="ct_telnet.html"><code·class="inline">ct_telnet</code></a>,·for·connecting·to·a·Telnet·server·on·a·UNIX | 128 | <p>Callback·module·for·<a·href="ct_telnet.html"><code·class="inline">ct_telnet</code></a>,·for·connecting·to·a·Telnet·server·on·a·UNIX |
| 129 | host.</p><p>It·requires·the·following·entry·in·the·configuration·file:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="1214493945-1">{</span><span·class="ss">unix</span><span·class="p">,</span><span·class="p"·data-group-id="1214493945-2">[</span><span·class="p"·data-group-id="1214493945-3">{</span><span·class="ss">telnet</span><span·class="p">,</span><span·class="n">HostNameOrIpAddress</span><span·class="p"·data-group-id="1214493945-3">}</span><span·class="p">,</span><span·class="w"> | ||
| 130 | 129 | host.</p><p>It·requires·the·following·entry·in·the·configuration·file:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="8831694475-1">{</span><span·class="ss">unix</span><span·class="p">,</span><span·class="p"·data-group-id[·...·truncated·by·diffoscope;·len:·243,·SHA:·54c67b37d49252a171716a11ecdee78d1fc5beb10175e62f42fe0d0a6b46ca8a·...·]</span><span·class="w"> | |
| 130 | ·······</span><span·class="p"·data-group-id="8831694475-4">{</span><span·class="ss">port</span><span·class="p">,</span><span·class="n">PortNum</span><span·class="p"·data-group-id="8831694475-4">}</span><span·class="p">,</span><span·class="w">·················</span><span·class="c1">%·optional</span><span·class="w"> | ||
| 131 | ·······</span><span·class="p"·data-group-id=" | 131 | ·······</span><span·class="p"·data-group-id="8831694475-5">{</span><span·class="ss">username</span><span·class="p">,</span><span·class="n">UserName</span><span·class="p"·data-group-id="8831694475-5">}</span><span·class="p">,</span><span·class="w"> |
| 132 | ·······</span><span·class="p"·data-group-id="1214493945-6">{</span><span·class="ss">password</span><span·class="p">,</span><span·class="n">Password</span><span·class="p"·data-group-id="1214493945-6">}</span><span·class="p">,</span><span·class="w"> | ||
| 133 | ·······</span><span·class="p"·data-group-id=" | 132 | ·······</span><span·class="p"·data-group-id="8831694475-6">{</span><span·class="ss">password</span><span·class="p">,</span><span·class="n">Password</span><span·class="p"·data-group-id="8831694475-6">}</span><span·class="p">,</span><span·class="w"> |
| 133 | ·······</span><span·class="p"·data-group-id="8831694475-7">{</span><span·class="ss">keep_alive</span><span·class="p">,</span><span·class="n">Bool</span><span·class="p"·data-group-id="8831694475-7">}</span><span·class="p"·data-group-id="8831694475-2">]</span><span·class="p"·data-group-id="8831694475-1">}</span><span·class="p">.</span><span·class="w">············</span><span·class="c1">%·optional</span></code></pre><p>To·communicate·through·Telnet·to·the·host·specified·by·<code·class="inline">HostNameOrIpAddress</code>, | ||
| 134 | use·the·interface·functions·in·<a·href="ct_telnet.html"><code·class="inline">ct_telnet</code></a>,·for·example,·<code·class="inline">open(Name)</code>·and | 134 | use·the·interface·functions·in·<a·href="ct_telnet.html"><code·class="inline">ct_telnet</code></a>,·for·example,·<code·class="inline">open(Name)</code>·and |
| 135 | <code·class="inline">cmd(Name,Cmd)</code>.</p><p><code·class="inline">Name</code>·is·the·name·you·allocated·to·the·Unix·host·in·your·<code·class="inline">require</code>·statement, | 135 | <code·class="inline">cmd(Name,Cmd)</code>.</p><p><code·class="inline">Name</code>·is·the·name·you·allocated·to·the·Unix·host·in·your·<code·class="inline">require</code>·statement, |
| 136 | for·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">suite</span><span·class="p"·data-group-id=" | 136 | for·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">suite</span><span·class="p"·data-group-id="4881654370-1">(</span><span·class="p"·data-group-id="4881654370-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="p"·data-group-id="4881654370-2">[</span><span·class="p"·data-group-id="4881654370-3">{</span[·...·truncated·by·diffoscope;·len:·1121,·SHA:·59eb5ba9637383237c4b1a30eaf23b098207e6df69a797ebea3d28a990f62de8·...·]-1">)</span><span·class="p">.</span></code></pre><p>The·"keep·alive"·activity·(that·is,·that·<code·class="inline">Common·Test</code>·sends·NOP·to·the·server |
| 137 | every·10·seconds·if·the·connection·is·idle)·can·be·enabled·or·disabled·for·one | 137 | every·10·seconds·if·the·connection·is·idle)·can·be·enabled·or·disabled·for·one |
| 138 | particular·connection·as·described·here.·It·can·be·disabled·for·all·connections | 138 | particular·connection·as·described·here.·It·can·be·disabled·for·all·connections |
| 139 | using·<code·class="inline">telnet_settings</code>·(see·<a·href="ct_telnet.html"><code·class="inline">ct_telnet</code></a>).</p><p>The·<code·class="inline">{port,PortNum}</code>·tuple·is·optional·and·if·omitted,·default·Telnet·port·23·is | 139 | using·<code·class="inline">telnet_settings</code>·(see·<a·href="ct_telnet.html"><code·class="inline">ct_telnet</code></a>).</p><p>The·<code·class="inline">{port,PortNum}</code>·tuple·is·optional·and·if·omitted,·default·Telnet·port·23·is |
| 140 | used.·Also·the·<code·class="inline">keep_alive</code>·tuple·is·optional,·and·the·value·default·to·<code·class="inline">true</code> | 140 | used.·Also·the·<code·class="inline">keep_alive</code>·tuple·is·optional,·and·the·value·default·to·<code·class="inline">true</code> |
| 141 | (enabled).</p><h2·id="module-see-also"·class="section-heading"> | 141 | (enabled).</p><h2·id="module-see-also"·class="section-heading"> |
| 142 | ··<a·href="#module-see-also"·class="hover-link"> | 142 | ··<a·href="#module-see-also"·class="hover-link"> |
| 143 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 143 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
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| 288 | ······<p·class="built-using"> | 288 | ······<p·class="built-using"> |
| 289 | ········Built·using | 289 | ········Built·using |
| 290 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 290 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 291 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 291 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 292 | ······</p> | 292 | ······</p> |
| 293 | <p>Copyright·©·1996-202 | 293 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 294 | ····</footer> | 294 | ····</footer> |
| 295 | ··</div> | 295 | ··</div> |
| 296 | </main> | 296 | </main> |
| 297 | </div> | 297 | </div> |
| 298 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 298 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 299 | ··<script> | 299 | ··<script> |
| 300 | ··let·initialized·=·false; | 300 | ··let·initialized·=·false; |
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| 206 | ······<p·class="built-using"> | 206 | ······<p·class="built-using"> |
| 207 | ········Built·using | 207 | ········Built·using |
| 208 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 208 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 209 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 209 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 210 | ······</p> | 210 | ······</p> |
| 211 | <p>Copyright·©·1996-202 | 211 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 212 | ····</footer> | 212 | ····</footer> |
| 213 | ··</div> | 213 | ··</div> |
| 214 | </main> | 214 | </main> |
| 215 | </div> | 215 | </div> |
| 216 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 216 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 217 | ··<script> | 217 | ··<script> |
| 218 | ··let·initialized·=·false; | 218 | ··let·initialized·=·false; |
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| 262 | <a·href="write_test_chapter.html#timetraps">Timetrap·Time-Outs</a>.</p></li><li><p><strong><code·class="inline">userdata</code></strong>·-·Specifies·any·data·related·to·the·test·case.·This·data·can·be | 262 | <a·href="write_test_chapter.html#timetraps">Timetrap·Time-Outs</a>.</p></li><li><p><strong><code·class="inline">userdata</code></strong>·-·Specifies·any·data·related·to·the·test·case.·This·data·can·be |
| 263 | retrieved·at·any·time·using·the·<a·href="ct.html#userdata/3"><code·class="inline">ct:userdata/3</code></a>·utility·function.</p></li><li><p><strong><code·class="inline">silent_connections</code></strong>·-·For·details,·see·section | 263 | retrieved·at·any·time·using·the·<a·href="ct.html#userdata/3"><code·class="inline">ct:userdata/3</code></a>·utility·function.</p></li><li><p><strong><code·class="inline">silent_connections</code></strong>·-·For·details,·see·section |
| 264 | <a·href="run_test_chapter.html#silent_connections">Silent·Connections</a>.</p></li><li><p><strong><code·class="inline">require</code></strong>·-·Specifies·configuration·variables·required·by·the·test·case. | 264 | <a·href="run_test_chapter.html#silent_connections">Silent·Connections</a>.</p></li><li><p><strong><code·class="inline">require</code></strong>·-·Specifies·configuration·variables·required·by·the·test·case. |
| 265 | If·the·required·configuration·variables·are·not·found·in·any·of·the·test | 265 | If·the·required·configuration·variables·are·not·found·in·any·of·the·test |
| 266 | system·configuration·files,·the·test·case·is·skipped.</p><p>A·required·variable·can·also·be·given·a·default·value·to·be·used·if·the | 266 | system·configuration·files,·the·test·case·is·skipped.</p><p>A·required·variable·can·also·be·given·a·default·value·to·be·used·if·the |
| 267 | variable·is·not·found·in·any·configuration·file.·To·specify·a·default·value, | 267 | variable·is·not·found·in·any·configuration·file.·To·specify·a·default·value, |
| 268 | add·a·tuple·of·the·form·<code·class="inline">{default_config,ConfigVariableName,Value}</code>·to·the | 268 | add·a·tuple·of·the·form·<code·class="inline">{default_config,ConfigVariableName,Value}</code>·to·the |
| 269 | test·case·information·list·(the·position·in·the·list·is·irrelevant).</p><p><em>Examples:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">testcase1</span><span·class="p"·data-group-id=" | 269 | test·case·information·list·(the·position·in·the·list·is·irrelevant).</p><p><em>Examples:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">testcase1</span><span·class="p"·data-group-id="3404155310-1">(</span><span·class="p"·data-group-id="3404155310-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 270 | ····</span><span·class="p"·data-group-id=" | 270 | ····</span><span·class="p"·data-group-id="3404155310-2">[</span><span·class="p"·data-group-id="3404155310-3">{</span><span·class="ss">require</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">ftp</span><span·class="p"·data-group-id="3404155310-3">}</span><span·class="p">,</span><span·class="w"> |
| 271 | ·····</span><span·class="p"·data-group-id=" | 271 | ·····</span><span·class="p"·data-group-id="3404155310-4">{</span><span·class="ss">default_config</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">ftp</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3404155310-5">[</span><span·class="p"·data[·...·truncated·by·diffoscope;·len:·195,·SHA:·cad6124eca64292e7b67ba98f57555107466b04332c98f42d43c0dd268e7c7b7·...·]-6">}</span><span·class="p">,</span><span·class="w"> |
| 272 | ····························</span><span·class="p"·data-group-id=" | 272 | ····························</span><span·class="p"·data-group-id="3404155310-7">{</span><span·class="ss">username</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"aladdin"</span><span·class="p"·data-group-id="3404155310-7">}</span><span·class="p">,</span><span·class="w"> |
| 273 | ····························</span><span·class="p"·data-group-id=" | 273 | ····························</span><span·class="p"·data-group-id="3404155310-8">{</span><span·class="ss">password</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"sesame"</span><span·class="p"·data-group-id="3404155310-8">}</span><span·class="p"·data-group-id="3404155310-5">]</span><span·c[·...·truncated·by·diffoscope;·len:·334,·SHA:·98ae5de85daaa310943cdbf8553434be87adeb996868a6665acb267dd6433bec·...·]5-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 274 | ····</span><span·class="p"·data-group-id=" | 274 | ····</span><span·class="p"·data-group-id="8107803735-2">[</span><span·class="p"·data-group-id="8107803735-3">{</span><span·class="ss">require</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">unix_telnet</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">un[·...·truncated·by·diffoscope;·len:·49,·SHA:·52d31c428256ffafe2f22e8457a7dfb975c36d95986c26ec39b0ff30a69589cd·...·]5-3">}</span><span·class="p">,</span><span·class="w"> |
| 275 | ·····</span><span·class="p"·data-group-id=" | 275 | ·····</span><span·class="p"·data-group-id="8107803735-4">{</span><span·class="ss">require</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8107803735-5">{</span><span·class="ss">unix</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group[·...·truncated·by·diffoscope;·len:·363,·SHA:·1829dc5b4c79bff697b84404ed9355d3a7ef3aa22ad9da1dc20a39aad61efc74·...·]5-4">}</span><span·class="p">,</span><span·class="w"> |
| 276 | ·····</span><span·class="p"·data-group-id=" | 276 | ·····</span><span·class="p"·data-group-id="8107803735-7">{</span><span·class="ss">default_config</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">unix</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8107803735-8">[</span><span·class="p"·dat[·...·truncated·by·diffoscope;·len:·201,·SHA:·4a054eab581517dbf3f40145d1f2f2669d6cde2ae1ba91d124c3d9a04e543738·...·]5-9">}</span><span·class="p">,</span><span·class="w"> |
| 277 | ·····························</span><span·class="p"·data-group-id=" | 277 | ·····························</span><span·class="p"·data-group-id="8107803735-10">{</span><span·class="ss">username</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"aladdin"</span><span·class="p"·data-group-id="8107803735-10">}</span><span·class="p">,</span><span·class="w"> |
| 278 | ·····························</span><span·class="p"·data-group-id=" | 278 | ·····························</span><span·class="p"·data-group-id="8107803735-11">{</span><span·class="ss">password</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"sesame"</span><span·class="p"·data-group-id="8107803735-11">}</span><span·class="p"·data-group-id="8107803735-8">]</span><span[·...·truncated·by·diffoscope;·len:·112,·SHA:·f30158631e2258be70b2cafbe7e54daf8ff9114c065cfadcbf9549e7c496b736·...·]5-2">]</span><span·class="p">.</span></code></pre></li></ul><p>For·more·information·about·<code·class="inline">require</code>,·see·section |
| 279 | <a·href="config_file_chapter.html#require_config_data">Requiring·and·Reading·Configuration·Data</a> | 279 | <a·href="config_file_chapter.html#require_config_data">Requiring·and·Reading·Configuration·Data</a> |
| 280 | in·section·External·Configuration·Data·and·function | 280 | in·section·External·Configuration·Data·and·function |
| 281 | <a·href="ct.html#require/1"><code·class="inline">ct:require/1/2</code></a>.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>Specifying·a·default·value·for·a·required·variable·can·result·in·a·test·case | 281 | <a·href="ct.html#require/1"><code·class="inline">ct:require/1/2</code></a>.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>Specifying·a·default·value·for·a·required·variable·can·result·in·a·test·case |
| 282 | always·getting·executed.·This·might·not·be·a·desired·behavior.</p></section><p>If·<code·class="inline">timetrap</code>·or·<code·class="inline">require</code>,·or·both,·is·not·set·specifically·for·a·particular | 282 | always·getting·executed.·This·might·not·be·a·desired·behavior.</p></section><p>If·<code·class="inline">timetrap</code>·or·<code·class="inline">require</code>,·or·both,·is·not·set·specifically·for·a·particular |
| 283 | test·case,·default·values·specified·by·function | 283 | test·case,·default·values·specified·by·function |
| 284 | <a·href="ct_suite.html#c:suite/0"><code·class="inline">suite/0</code></a>·are·used.</p><p>Tags·other·than·the·earlier·mentioned·are·ignored·by·the·test·server.</p><p>An·example·of·a·test·case·information·function·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">reboot_node</span><span·class="p"·data-group-id=" | 284 | <a·href="ct_suite.html#c:suite/0"><code·class="inline">suite/0</code></a>·are·used.</p><p>Tags·other·than·the·earlier·mentioned·are·ignored·by·the·test·server.</p><p>An·example·of·a·test·case·information·function·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">reboot_node</span><span·class="p"·data-group-id="9172903559-1">(</span><span·class="p"·data-group-id="9172903559-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 285 | ····</span><span·class="p"·data-group-id=" | 285 | ····</span><span·class="p"·data-group-id="9172903559-2">[</span><span·class="w"> |
| 286 | ·····</span><span·class="p"·data-group-id=" | 286 | ·····</span><span·class="p"·data-group-id="9172903559-3">{</span><span·class="ss">timetrap</span><span·class="p">,</span><span·class="p"·data-group-id="9172903559-4">{</span><span·class="ss">seconds</span><span·class="p">,</span><span·class="mi">60</span><span·class="p"·data-group-id="9172903559-4"[·...·truncated·by·diffoscope;·len:·50,·SHA:·f7282f2bcdebd5c1617b6b3ed5e06a5f6b9053ac22c41390484a697374e638a2·...·]-3">}</span><span·class="p">,</span><span·class="w"> |
| 287 | ·····</span><span·class="p"·data-group-id=" | 287 | ·····</span><span·class="p"·data-group-id="9172903559-5">{</span><span·class="ss">require</span><span·class="p">,</span><span·class="ss">interfaces</span><span·class="p"·data-group-id="9172903559-5">}</span><span·class="p">,</span><span·class="w"> |
| 288 | ·····</span><span·class="p"·data-group-id=" | 288 | ·····</span><span·class="p"·data-group-id="9172903559-6">{</span><span·class="ss">userdata</span><span·class="p">,</span><span·class="w"> |
| 289 | ·········</span><span·class="p"·data-group-id=" | 289 | ·········</span><span·class="p"·data-group-id="9172903559-7">[</span><span·class="p"·data-group-id="9172903559-8">{</span><span·class="ss">description</span><span·class="p">,</span><span·class="s">"System·Upgrade:·RpuAddition·Normal·RebootNode"</span><span·class="p"·data-group-id="9172903559-8">}</span><span·class="p">,</span><span·class="w"> |
| 290 | ··········</span><span·class="p"·data-group-id=" | 290 | ··········</span><span·class="p"·data-group-id="9172903559-9">{</span><span·class="ss">fts</span><span·class="p">,</span><span·class="s">"http://someserver.ericsson.se/test_doc4711.pdf"</span><span·class="p"·data-group-id="9172903559-9">}</span><span·class="p"·data-group-id="9172903559-7">]</s[·...·truncated·by·diffoscope;·len:·45,·SHA:·d379d4456c4ceeb5b590c5d948101a301ee837b6a4ed5065058381443200dfae·...·]-6">}</span><span·class="w"> |
| 291 | ····</span><span·class="p"·data-group-id=" | 291 | ····</span><span·class="p"·data-group-id="9172903559-2">]</span><span·class="p">.</span></code></pre><p><a·href=""·id="suite"></a></p><h2·id="test-suite-information-function"·class="section-heading"> |
| 292 | ··<a·href="#test-suite-information-function"·class="hover-link"> | 292 | ··<a·href="#test-suite-information-function"·class="hover-link"> |
| 293 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 293 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 294 | ··</a> | 294 | ··</a> |
| 295 | ··<span·class="text">Test·Suite·Information·Function</span> | 295 | ··<span·class="text">Test·Suite·Information·Function</span> |
| 296 | </h2> | 296 | </h2> |
| 297 | <p>Function·<a·href="ct_suite.html#c:suite/0"><code·class="inline">suite/0</code></a>·can,·for·example,·be·used·in·a·test | 297 | <p>Function·<a·href="ct_suite.html#c:suite/0"><code·class="inline">suite/0</code></a>·can,·for·example,·be·used·in·a·test |
| 298 | suite·module·to·set·a·default·<code·class="inline">timetrap</code>·value·and·to·<code·class="inline">require</code>·external | 298 | suite·module·to·set·a·default·<code·class="inline">timetrap</code>·value·and·to·<code·class="inline">require</code>·external |
| 299 | configuration·data.·If·a·test·case,·or·a·group·information·function·also | 299 | configuration·data.·If·a·test·case,·or·a·group·information·function·also |
| 300 | specifies·any·of·the·information·tags,·it·overrides·the·default·values·set·by | 300 | specifies·any·of·the·information·tags,·it·overrides·the·default·values·set·by |
| 301 | <code·class="inline">suite/0</code>.·For·details,·see | 301 | <code·class="inline">suite/0</code>.·For·details,·see |
| 302 | <a·href="write_test_chapter.html#info_function">Test·Case·Information·Function</a>·and | 302 | <a·href="write_test_chapter.html#info_function">Test·Case·Information·Function</a>·and |
| 303 | <a·href="write_test_chapter.html#test_case_groups">Test·Case·Groups</a>.</p><p>The·following·options·can·also·be·specified·with·the·suite·information·list:</p><ul><li><code·class="inline">stylesheet</code>,·see·<a·href="run_test_chapter.html#html_stylesheet">HTML·Style·Sheets</a></li><li><code·class="inline">userdata</code>,·see | 303 | <a·href="write_test_chapter.html#test_case_groups">Test·Case·Groups</a>.</p><p>The·following·options·can·also·be·specified·with·the·suite·information·list:</p><ul><li><code·class="inline">stylesheet</code>,·see·<a·href="run_test_chapter.html#html_stylesheet">HTML·Style·Sheets</a></li><li><code·class="inline">userdata</code>,·see |
| 304 | <a·href="write_test_chapter.html#info_function">Test·Case·Information·Function</a></li><li><code·class="inline">silent_connections</code>,·see | 304 | <a·href="write_test_chapter.html#info_function">Test·Case·Information·Function</a></li><li><code·class="inline">silent_connections</code>,·see |
| 305 | <a·href="run_test_chapter.html#silent_connections">Silent·Connections</a></li></ul><p>An·example·of·the·suite·information·function·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">suite</span><span·class="p"·data-group-id=" | 305 | <a·href="run_test_chapter.html#silent_connections">Silent·Connections</a></li></ul><p>An·example·of·the·suite·information·function·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">suite</span><span·class="p"·data-group-id="7510029888-1">(</span><span·class="p"·data-group-id="7510029888-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 306 | ····</span><span·class="p"·data-group-id=" | 306 | ····</span><span·class="p"·data-group-id="7510029888-2">[</span><span·class="w"> |
| 307 | ·····</span><span·class="p"·data-group-id=" | 307 | ·····</span><span·class="p"·data-group-id="7510029888-3">{</span><span·class="ss">timetrap</span><span·class="p">,</span><span·class="p"·data-group-id="7510029888-4">{</span><span·class="ss">minutes</span><span·class="p">,</span><span·class="mi">10</span><span·class="p"·data-group-id="7510029888-4"[·...·truncated·by·diffoscope;·len:·50,·SHA:·2872ebb1ad5f7055691ed317594569be60415d3ce260ac578f44dea24aa2c8a9·...·]-3">}</span><span·class="p">,</span><span·class="w"> |
| 308 | ·····</span><span·class="p"·data-group-id=" | 308 | ·····</span><span·class="p"·data-group-id="7510029888-5">{</span><span·class="ss">require</span><span·class="p">,</span><span·class="ss">global_names</span><span·class="p"·data-group-id="7510029888-5">}</span><span·class="p">,</span><span·class="w"> |
| 309 | ·····</span><span·class="p"·data-group-id=" | 309 | ·····</span><span·class="p"·data-group-id="7510029888-6">{</span><span·class="ss">userdata</span><span·class="p">,</span><span·class="p"·data-group-id="7510029888-7">[</span><span·class="p"·data-group-id="7510029888-8">{</span><span·class="ss">info</span><span·class="p">,</span><span·class="s">&quo[·...·truncated·by·diffoscope;·len:·201,·SHA:·3cd821c9a038c169e04de6cdc999cf8ef82f252fb3700b8a039e571e075bb6fe·...·]-6">}</span><span·class="p">,</span><span·class="w"> |
| 310 | ·····</span><span·class="p"·data-group-id=" | 310 | ·····</span><span·class="p"·data-group-id="7510029888-9">{</span><span·class="ss">silent_connections</span><span·class="p">,</span><span·class="p"·data-group-id="7510029888-10">[</span><span·class="ss">telnet</span><span·class="p"·data-group-id="7510029888-10">]</span><span·class="p"·data-group-id=[·...·truncated·by·diffoscope;·len:·11,·SHA:·b5b594d4068f5389b289f37d34ebe4b6351938ba4686e80d0b08cedf4b9ac2b8·...·]-9">}</span><span·class="p">,</span><span·class="w"> |
| 311 | ·····</span><span·class="p"·data-group-id=" | 311 | ·····</span><span·class="p"·data-group-id="7510029888-11">{</span><span·class="ss">stylesheet</span><span·class="p">,</span><span·class="s">"db_testing.css"</span><span·class="p"·data-group-id="7510029888-11">}</span><span·class="w"> |
| 312 | ····</span><span·class="p"·data-group-id=" | 312 | ····</span><span·class="p"·data-group-id="7510029888-2">]</span><span·class="p">.</span></code></pre><p><a·href=""·id="test_case_groups"></a></p><h2·id="test-case-groups"·class="section-heading"> |
| 313 | ··<a·href="#test-case-groups"·class="hover-link"> | 313 | ··<a·href="#test-case-groups"·class="hover-link"> |
| 314 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 314 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 315 | ··</a> | 315 | ··</a> |
| 316 | ··<span·class="text">Test·Case·Groups</span> | 316 | ··<span·class="text">Test·Case·Groups</span> |
| 317 | </h2> | 317 | </h2> |
| 318 | <p>A·test·case·group·is·a·set·of·test·cases·sharing·configuration·functions·and | 318 | <p>A·test·case·group·is·a·set·of·test·cases·sharing·configuration·functions·and |
| 319 | execution·properties.·Test·case·groups·are·defined·by·function | 319 | execution·properties.·Test·case·groups·are·defined·by·function |
| Offset 327, 63 lines modified | Offset 327, 63 lines modified | ||
| 327 | GroupName·=·atom() | 327 | GroupName·=·atom() |
| 328 | GroupsAndTestCases·=·[GroupDef·|·{group,GroupName}·|·TestCase·| | 328 | GroupsAndTestCases·=·[GroupDef·|·{group,GroupName}·|·TestCase·| |
| 329 | ·····················{testcase,TestCase,TCRepeatProps}] | 329 | ·····················{testcase,TestCase,TCRepeatProps}] |
| 330 | TestCase·=·atom() | 330 | TestCase·=·atom() |
| 331 | TCRepeatProps·=·[{repeat,N}·|·{repeat_until_ok,N}·|·{repeat_until_fail,N}]</code></pre><p><code·class="inline">GroupName</code>·is·the·name·of·the·group·and·must·be·unique·within·the·test·suite | 331 | TCRepeatProps·=·[{repeat,N}·|·{repeat_until_ok,N}·|·{repeat_until_fail,N}]</code></pre><p><code·class="inline">GroupName</code>·is·the·name·of·the·group·and·must·be·unique·within·the·test·suite |
| 332 | module.·Groups·can·be·nested,·by·including·a·group·definition·within·the | 332 | module.·Groups·can·be·nested,·by·including·a·group·definition·within·the |
| 333 | <code·class="inline">GroupsAndTestCases</code>·list·of·another·group.·<code·class="inline">Properties</code>·is·the·list·of | 333 | <code·class="inline">GroupsAndTestCases</code>·list·of·another·group.·<code·class="inline">Properties</code>·is·the·list·of |
| 334 | execution·properties·for·the·group.·The·possible·values·are·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Properties</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 334 | execution·properties·for·the·group.·The·possible·values·are·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Properties</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="3735753645-1">[</span><span·class="ss">parallel</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">sequence</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="n">Shuffle</s[·...·truncated·by·diffoscope;·len:·309,·SHA:·3a7798e021bd880668da912c9035c2ad5c34013a2ad2dc6de6c01ca408980042·...·]-1">]</span><span·class="w"> |
| 335 | </span><span·class="n">Shuffle</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">shuffle</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id=" | 335 | </span><span·class="n">Shuffle</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">shuffle</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id="3735753645-3">{</span><span·class="ss">shuffle</span><span·class="p">,</span><span·class="n">Seed</span><span·class="p"·data-group-id="3735753645-3">}</span><span·class="w"> |
| 336 | </span><span·class="n">Seed</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 336 | </span><span·class="n">Seed</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="3735753645-4">{</span><span·class="nf">integer</span><span·class="p"·data-group-id="3735753645-5">(</span><span·class="p"·data-group-id="3735753645-5">)</span><span·class="p">,</span><span·class="nf">integer</span><span·class="p"·data-group-id="3735753645-[·...·truncated·by·diffoscope;·len:·266,·SHA:·c9a5c25da8385277b0f2909e4b2b3ceaebcdcc055790a2fb7eddd869c5fcf06b·...·]-4">}</span><span·class="w"> |
| 337 | </span><span·class="n">GroupRepeatType</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">repeat</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">repeat_until_all_ok</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">repeat_until_all_fail</span><span·class="w">·</span><span·class="p">|</span><span·class="w"> | 337 | </span><span·class="n">GroupRepeatType</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">repeat</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">repeat_until_all_ok</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">repeat_until_all_fail</span><span·class="w">·</span><span·class="p">|</span><span·class="w"> |
| 338 | ··················</span><span·class="ss">repeat_until_any_ok</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">repeat_until_any_fail</span><span·class="w"> | 338 | ··················</span><span·class="ss">repeat_until_any_ok</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">repeat_until_any_fail</span><span·class="w"> |
| 339 | </span><span·class="n">N</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id=" | 339 | </span><span·class="n">N</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="3735753645-8">(</span><span·class="p"·data-group-id="3735753645-8">)</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">forever</span></code></pre><p><em>Explanations:</em></p><ul><li><p><strong><code·class="inline">parallel</code></strong>·-·<code·class="inline">Common·Test</code>·executes·all·test·cases·in·the·group·in |
| 340 | parallel.</p></li><li><p><strong><code·class="inline">sequence</code></strong>·-·The·cases·are·executed·in·a·sequence·as·described·in·section | 340 | parallel.</p></li><li><p><strong><code·class="inline">sequence</code></strong>·-·The·cases·are·executed·in·a·sequence·as·described·in·section |
| 341 | <a·href="dependencies_chapter.html#sequences">Sequences</a>·in·section·Dependencies·Between | 341 | <a·href="dependencies_chapter.html#sequences">Sequences</a>·in·section·Dependencies·Between |
| 342 | Test·Cases·and·Suites.</p></li><li><p><strong><code·class="inline">shuffle</code></strong>·-·The·cases·in·the·group·are·executed·in·random·order.</p></li><li><p><strong><code·class="inline">repeat,·repeat_until_*</code></strong>·-·Orders·<code·class="inline">Common·Test</code>·to·repeat·execution·of·all | 342 | Test·Cases·and·Suites.</p></li><li><p><strong><code·class="inline">shuffle</code></strong>·-·The·cases·in·the·group·are·executed·in·random·order.</p></li><li><p><strong><code·class="inline">repeat,·repeat_until_*</code></strong>·-·Orders·<code·class="inline">Common·Test</code>·to·repeat·execution·of·all |
| 343 | the·cases·in·the·group·a·given·number·of·times,·or·until·any,·or·all,·cases | 343 | the·cases·in·the·group·a·given·number·of·times,·or·until·any,·or·all,·cases |
| 344 | fail·or·succeed.</p></li></ul><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">groups</span><span·class="p"·data-group-id=" | 344 | fail·or·succeed.</p></li></ul><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">groups</span><span·class="p"·data-group-id="1543942661-1">(</span><span·class="p"·data-group-id="1543942661-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="p"·data-group-id="1543942661-2">[</span><span·class="p"·data-group-id="1543942661-3">{</span[·...·truncated·by·diffoscope;·len:·496,·SHA:·2f375ae4749b30cb6207368d188895aa539aa09440ec067e1a0e173598dc050c·...·]-3">}</span><span·class="p">,</span><span·class="w"> |
| 345 | ·············</span><span·class="p"·data-group-id=" | 345 | ·············</span><span·class="p"·data-group-id="1543942661-6">{</span><span·class="ss">group2</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1543942661-7">[</span><span·class="ss">shuffle</span><span·class="p">,</span><span·class="ss">sequence</span><span·class="p"·[·...·truncated·by·diffoscope;·len:·423,·SHA:·0a5f2a37ca4b795ef46e4c04937e53c9768344477b667981cfa8e06fa220eba5·...·]-2">]</span><span·class="p">.</span></code></pre><p>To·specify·in·which·order·groups·are·to·be·executed·(also·with·respect·to·test |
| 346 | cases·that·are·not·part·of·any·group),·add·tuples·on·the·form | 346 | cases·that·are·not·part·of·any·group),·add·tuples·on·the·form |
| 347 | <code·class="inline">{group,GroupName}</code>·to·the·<code·class="inline">all/0</code>·list.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">all</span><span·class="p"·data-group-id=" | 347 | <code·class="inline">{group,GroupName}</code>·to·the·<code·class="inline">all/0</code>·list.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">all</span><span·class="p"·data-group-id="2861562493-1">(</span><span·class="p"·data-group-id="2861562493-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="p"·data-group-id="2861562493-2">[</span><span·class="ss">testcase1</span><span·class="p">,</[·...·truncated·by·diffoscope;·len:·1055,·SHA:·8cb1887d6cb415addacf18cd97b797562a80d38de28b82d4b462a25ed3f36e3c·...·]-2">]</span><span·class="p">.</span></code></pre><p>Execution·properties·with·a·group·tuple·in·<code·class="inline">all/0</code>: |
| 348 | <code·class="inline">{group,GroupName,Properties}</code>·can·also·be·specified.·These·properties·override | 348 | <code·class="inline">{group,GroupName,Properties}</code>·can·also·be·specified.·These·properties·override |
| 349 | those·specified·in·the·group·definition·(see·<code·class="inline">groups/0</code>·earlier).·This·way,·the | 349 | those·specified·in·the·group·definition·(see·<code·class="inline">groups/0</code>·earlier).·This·way,·the |
| 350 | same·set·of·tests·can·be·run,·but·with·different·properties,·without·having·to | 350 | same·set·of·tests·can·be·run,·but·with·different·properties,·without·having·to |
| 351 | make·copies·of·the·group·definition·in·question.</p><p>If·a·group·contains·subgroups,·the·execution·properties·for·these·can·also·be | 351 | make·copies·of·the·group·definition·in·question.</p><p>If·a·group·contains·subgroups,·the·execution·properties·for·these·can·also·be |
| 352 | specified·in·the·group·tuple:·<code·class="inline">{group,GroupName,Properties,SubGroups}</code>·Where, | 352 | specified·in·the·group·tuple:·<code·class="inline">{group,GroupName,Properties,SubGroups}</code>·Where, |
| 353 | <code·class="inline">SubGroups</code>·is·a·list·of·tuples,·<code·class="inline">{GroupName,Properties}</code>·or | 353 | <code·class="inline">SubGroups</code>·is·a·list·of·tuples,·<code·class="inline">{GroupName,Properties}</code>·or |
| 354 | <code·class="inline">{GroupName,Properties,SubGroups}</code>·representing·the·subgroups.·Any·subgroups | 354 | <code·class="inline">{GroupName,Properties,SubGroups}</code>·representing·the·subgroups.·Any·subgroups |
| 355 | defined·in·<code·class="inline">groups/0</code>·for·a·group,·that·are·not·specified·in·the·<code·class="inline">SubGroups</code> | 355 | defined·in·<code·class="inline">groups/0</code>·for·a·group,·that·are·not·specified·in·the·<code·class="inline">SubGroups</code> |
| 356 | list,·executes·with·their·predefined·properties.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">groups</span><span·class="p"·data-group-id="4 | 356 | list,·executes·with·their·predefined·properties.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">groups</span><span·class="p"·data-group-id="4499109369-1">(</span><span·class="p"·data-group-id="4499109369-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="p"·data-group-id="4499109369-2">[</span><span·class="p"·data-group-id="4499109369-3">{</span>[·...·truncated·by·diffoscope;·len:·795,·SHA:·706e439d663836d511f0df1140e9d2a768366c1317c3af9a99fe7bbca40e66d0·...·]-6">}</span><span·class="p">,</span><span·class="w"> |
| 357 | ··························</span><span·class="p"·data-group-id="4 | 357 | ··························</span><span·class="p"·data-group-id="4499109369-9">{</span><span·class="ss">tests3</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4499109369-10">[</span><span·class="p"·data-group-id="4499109369-10">]</span><span·class="p">,</span><span·class="w">·</span><[·...·truncated·by·diffoscope;·len:·385,·SHA:·652e164f8cfceb838ddcf96dcc9dc3a6ef701428245f64016f33f2bd8cd33c6d·...·]-2">]</span><span·class="p">.</span></code></pre><p>To·execute·group·<code·class="inline">tests1</code>·twice·with·different·properties·for·<code·class="inline">tests2</code>·each |
| 358 | time:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">all</span><span·class="p"·data-group-id=" | 358 | time:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">all</span><span·class="p"·data-group-id="8679283353-1">(</span><span·class="p"·data-group-id="8679283353-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 359 | ···</span><span·class="p"·data-group-id="4353599190-2">[</span><span·class="p"·data-group-id="4353599190-3">{</span><span·class="ss">group</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">tests1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">default</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4353599190-4">[</span><span·class="p"·data-group-id="4353599190-5">{</span><span·class="ss">tests2</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4353599190-6">[</span><span·class="ss">parallel</span><span·class="p"·data-group-id="4353599190-6">]</span><span·class="p"·data-group-id="4353599190-5">}</span><span·class="p"·data-group-id="4353599190-4">]</span><span·class="p"·data-group-id="4353599190-3">}</span><span·class="p">,</span><span·class="w"> | ||
| 360 | ····</span><span·class="p"·data-group-id="4353599190-7">{</span><span·class="ss">group</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">tests1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">default</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4353599190-8">[</span><span·class="p"·data-group-id="4353599190-9">{</span><span·class="ss">tests2</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4353599190-10">[</span><span·class="ss">shuffle</span><span·class="p">,</span><span·class="p"·data-group-id="4353599190-11">{</span><span·class="ss">repeat</span><span·class="p">,</span><span·class="mi">10</span><span·class="p"·data-group-id="4353599190-11">}</span><span·class="p"·data-group-id="4353599190-10">]</span><span·class="p"·data-group-id="4353599190-9">}</span><span·class="p"·data-group-id="4353599190-8">]</span><span·class="p"·data-group-id="4353599190-7">}</span><span·class="p"·data-group-id="4353599190-2">]</span><span·class="p">.</span></code></pre><p>This·is·equivalent·to·the·following·specification:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">all</span><span·class="p"·data-group-id="6125761747-1">(</span><span·class="p"·data-group-id="6125761747-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | ||
| 361 | ···</span><span·class="p"·data-group-id=" | 359 | ···</span><span·class="p"·data-group-id="8679283353-2">[</span><span·class="p"·data-group-id="8679283353-3">{</span><span·class="ss">group</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">tests1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">default</[·...·truncated·by·diffoscope;·len:·524,·SHA:·d3b9c82d8ad2a7196f242b8cadbb49d2a0b8802c8b4c63a8987201ebbb6eb3cb·...·]">}</span><span·class="p">,</span><span·class="w"> |
| 360 | ····</span><span·class="p"·data-group-id="8679283353-7">{</span><span·class="ss">group</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">tests1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">default</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8679283353-8">[</span><span·class="p"·data-group-id="8679283353-9">{</span><span·class="ss">tests2</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8679283353-10">[</span><span·class="ss">shuffle</span><span·class="p">,</span><span·class="p"·data-group-id="8679283353-11">{</span><span·class="ss">repeat</span><span·class="p">,</span><span·class="mi">10</span><span·class="p"·data-group-id="8679283353-11">}</span><span·class="p"·data-group-id="8679283353-10">]</span><span·class="p"·data-group-id="8679283353-9">}</span><span·class="p"·data-group-id="8679283353-8">]</span><span·class="p"·data-group-id="8679283353-7">}</span><span·class="p"·data-group-id="8679283353-2">]</span><span·class="p">.</span></code></pre><p>This·is·equivalent·to·the·following·specification:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">all</span><span·class="p"·data-group-id="4259125051-1">(</span><span·class="p"·data-group-id="4259125051-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | ||
| 361 | ···</span><span·class="p"·data-group-id="4259125051-2">[</span><span·class="p"·data-group-id="4259125051-3">{</span><span·class="ss">group</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">tests1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">default</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4259125051-4">[</span><span·class="p"·data-group-id="4259125051-5">{</span><span·class="ss">tests2</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4259125051-6">[</span><span·class="ss">parallel</span><span·class="p"·data-group-id="4259125051-6">]</span><span·class="p"·data-group-id="4259125051-5">}</span><span·class="p">,</span><span·class="w"> | ||
| 362 | ······························</span><span·class="p"·data-group-id=" | 362 | ······························</span><span·class="p"·data-group-id="4259125051-7">{</span><span·class="ss">tests3</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">default</span><span·class="p"·data-group-id="4259125051-7">}</span><span·class="p"·data-group-id="4259125051-4">]</span><span·class="p"·dat[·...·truncated·by·diffoscope;·len:·22,·SHA:·7081752da9451d2178ca2246a05b07f7f4d937d580557704e70ebb4cbfeabd10·...·]-3">}</span><span·class="p">,</span><span·class="w"> |
| 363 | ····</span><span·class="p"·data-group-id=" | 363 | ····</span><span·class="p"·data-group-id="4259125051-8">{</span><span·class="ss">group</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">tests1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">default</span><span·class="p">,</span><span·class="w">·</span>[·...·truncated·by·diffoscope;·len:·577,·SHA:·79e38d9858b28bd91d1a932ef2b3657b8794002c562ebe4c70d7607591e5e552·...·]-10">}</span><span·class="p">,</span><span·class="w"> |
| 364 | ······························</span><span·class="p"·data-group-id=" | 364 | ······························</span><span·class="p"·data-group-id="4259125051-13">{</span><span·class="ss">tests3</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">default</span><span·class="p"·data-group-id="4259125051-13">}</span><span·class="p"·data-group-id="4259125051-9">]</span><span·class="p"·d[·...·truncated·by·diffoscope;·len:·77,·SHA:·e2987a43e738976c434068dc9798f9fe5349a42c34b6e682dac50e25a991722d·...·]-2">]</span><span·class="p">.</span></code></pre><p>Value·<code·class="inline">default</code>·states·that·the·predefined·properties·are·to·be·used.</p><p>The·following·example·shows·how·to·override·properties·in·a·scenario·with·deeply |
| 365 | nested·groups:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">groups</span><span·class="p"·data-group-id=" | 365 | nested·groups:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">groups</span><span·class="p"·data-group-id="3461713082-1">(</span><span·class="p"·data-group-id="3461713082-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 366 | ···</span><span·class="p"·data-group-id="1295635017-2">[</span><span·class="p"·data-group-id="1295635017-3">{</span><span·class="ss">tests1</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1295635017-4">[</span><span·class="p"·data-group-id="1295635017-4">]</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1295635017-5">[</span><span·class="p"·data-group-id="1295635017-6">{</span><span·class="ss">group</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">tests2</span><span·class="p"·data-group-id="1295635017-6">}</span><span·class="p"·data-group-id="1295635017-5">]</span><span·class="p"·data-group-id="1295635017-3">}</span><span·class="p">,</span><span·class="w"> | ||
| 367 | ··· | 366 | ···</span><span·class="p"·data-group-id="3461713082-2">[</span><span·class="p"·data-group-id="3461713082-3">{</span><span·class="ss">tests1</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3461713082-4">[</span><span·class=[·...·truncated·by·diffoscope;·len:·451,·SHA:·b58f6cab76f37d0ea3604775bad9e5661cb759a2aac562ee03ef903fcf9f0198·...·]">}</span><span·class="p">,</span><span·class="w"> |
| 367 | ····</span><span·class="p"·data-group-id="3461713082-7">{</span><span·class="ss">tests2</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3461713082-8">[</span><span·class="p"·data-group-id="3461713082-8">]</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3461713082-9">[</span><span·class="p"·data-group-id="3461713082-10">{</span><span·class="ss">group</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">tests3</span><span·class="p"·data-group-id="3461713082-10">}</span><span·class="p"·data-group-id="3461713082-9">]</span><span·class="p"·data-group-id="3461713082-7">}</span><span·class="p">,</span><span·class="w"> | ||
| 368 | ····</span><span·class="p"·data-group-id=" | 368 | ····</span><span·class="p"·data-group-id="3461713082-11">{</span><span·class="ss">tests3</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3461713082-12">[</span><span·class="p"·data-group-id="3461713082-13">{</span><span·class="ss">repeat</span><span·class="p">,[·...·truncated·by·diffoscope;·len:·520,·SHA:·6a53996d2953038d97ec8f036eda4ca7b607b21141bc12a7a5a7683a69775d79·...·]-2">]</span><span·class="p">.</span><span·class="w"> |
| 369 | </span><span·class="nf">all</span><span·class="p"·data-group-id=" | 369 | </span><span·class="nf">all</span><span·class="p"·data-group-id="3461713082-15">(</span><span·class="p"·data-group-id="3461713082-15">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 370 | ···</span><span·class="p"·data-group-id=" | 370 | ···</span><span·class="p"·data-group-id="3461713082-16">[</span><span·class="p"·data-group-id="3461713082-17">{</span><span·class="ss">group</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">tests1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">default</span><span·class="p">,</span><span·class="w"> |
| 371 | ·····</span><span·class="p"·data-group-id=" | 371 | ·····</span><span·class="p"·data-group-id="3461713082-18">[</span><span·class="p"·data-group-id="3461713082-19">{</span><span·class="ss">tests2</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">default</span><span·class="p">,</span><span·class="w"> |
| 372 | ·······</span><span·class="p"·data-group-id=" | 372 | ·······</span><span·class="p"·data-group-id="3461713082-20">[</span><span·class="p"·data-group-id="3461713082-21">{</span><span·class="ss">tests3</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3461713082-22">[</span><span·class="ss">parallel</span><span·class="p"[·...·truncated·by·diffoscope;·len:·563,·SHA:·c0f8bd2d7af3904a118c9647777092bfd54c1651c14f8649e4afed1175b6baaa·...·]-16">]</span><span·class="p">.</span></code></pre><p>For·ease·of·readability,·all·syntax·definitions·can·be·replaced·by·a·function |
| 373 | call·whose·return·value·should·match·the·expected·syntax·case.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">all</span><span·class="p"·data-group-id=" | 373 | call·whose·return·value·should·match·the·expected·syntax·case.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">all</span><span·class="p"·data-group-id="7698381423-1">(</span><span·class="p"·data-group-id="7698381423-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 374 | ···</span><span·class="p"·data-group-id=" | 374 | ···</span><span·class="p"·data-group-id="7698381423-2">[</span><span·class="p"·data-group-id="7698381423-3">{</span><span·class="ss">group</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">tests1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">default</[·...·truncated·by·diffoscope;·len:·234,·SHA:·37489418396e8956024ca6323f6190504937a16817c18c4d00e231e5f4fb1bd1·...·]-3">}</span><span·class="p">,</span><span·class="w"> |
| 375 | ····</span><span·class="p"·data-group-id=" | 375 | ····</span><span·class="p"·data-group-id="7698381423-5">{</span><span·class="ss">group</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">tests1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">default</span><span·class="p">,</span><span·class="w">·</span>[·...·truncated·by·diffoscope;·len:·183,·SHA:·c365fd95ff9e1f04bbdf204ec1e11c664e9b984b56dacb2a4ff63255c3a27664·...·]-7">)</span><span·class="p">,</span><span·class="w"> |
| 376 | ······························</span><span·class="p"·data-group-id=" | 376 | ······························</span><span·class="p"·data-group-id="7698381423-8">{</span><span·class="ss">tests3</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">default</span><span·class="p"·data-group-id="7698381423-8">}</span><span·class="p"·data-group-id="7698381423-6">]</span><span·class="p"·dat[·...·truncated·by·diffoscope;·len:·75,·SHA:·d907f989fc8eed17855996c035b2ec7afbb77e26089cdd18574b840b2f1e03ff·...·]-2">]</span><span·class="p">.</span><span·class="w"> |
| 377 | </span><span·class="nf">test_cases</span><span·class="p"·data-group-id=" | 377 | </span><span·class="nf">test_cases</span><span·class="p"·data-group-id="7698381423-9">(</span><span·class="p"·data-group-id="7698381423-9">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 378 | ···</span><span·class="p"·data-group-id=" | 378 | ···</span><span·class="p"·data-group-id="7698381423-10">[</span><span·class="p"·data-group-id="7698381423-11">{</span><span·class="ss">tests2</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="7698381423-12">[</span><span·class="ss">parallel</span><span·class="p"[·...·truncated·by·diffoscope;·len:·399,·SHA:·7b0db0f7c2cddffdf88748a79d451a493110f2ac38656e0beab3294c6d01c318·...·]-10">]</span><span·class="p">.</span><span·class="w"> |
| 379 | </span><span·class="nf">shuffle_test</span><span·class="p"·data-group-id=" | 379 | </span><span·class="nf">shuffle_test</span><span·class="p"·data-group-id="7698381423-14">(</span><span·class="p"·data-group-id="7698381423-14">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 380 | ···</span><span·class="p"·data-group-id=" | 380 | ···</span><span·class="p"·data-group-id="7698381423-15">{</span><span·class="ss">tests2</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="7698381423-16">[</span><span·class="ss">shuffle</span><span·class="p">,</span><span·class="p"·data-group-id="7698381423-17">[·...·truncated·by·diffoscope;·len:·237,·SHA:·639b2191911b9ca887997133bc7c026766a9d3ec0fc4f0e725c276ce279e13fb·...·]-15">}</span><span·class="p">.</span></code></pre><p>The·described·syntax·can·also·be·used·in·test·specifications·to·change·group |
| 381 | properties·at·the·time·of·execution,·without·having·to·edit·the·test·suite.·For | 381 | properties·at·the·time·of·execution,·without·having·to·edit·the·test·suite.·For |
| 382 | more·information,·see·section | 382 | more·information,·see·section |
| 383 | <a·href="run_test_chapter.html#test_specifications">Test·Specifications</a>·in·section | 383 | <a·href="run_test_chapter.html#test_specifications">Test·Specifications</a>·in·section |
| 384 | Running·Tests·and·Analyzing·Results.</p><p>As·illustrated,·properties·can·be·combined.·If,·for·example,·<code·class="inline">shuffle</code>, | 384 | Running·Tests·and·Analyzing·Results.</p><p>As·illustrated,·properties·can·be·combined.·If,·for·example,·<code·class="inline">shuffle</code>, |
| 385 | <code·class="inline">repeat_until_any_fail</code>,·and·<code·class="inline">sequence</code>·are·all·specified,·the·test·cases·in·the | 385 | <code·class="inline">repeat_until_any_fail</code>,·and·<code·class="inline">sequence</code>·are·all·specified,·the·test·cases·in·the |
| 386 | group·are·executed·repeatedly,·and·in·random·order,·until·a·test·case·fails. | 386 | group·are·executed·repeatedly,·and·in·random·order,·until·a·test·case·fails. |
| 387 | Then·execution·is·immediately·stopped·and·the·remaining·cases·are·skipped.</p><p>Before·execution·of·a·group·begins,·the·configuration·function | 387 | Then·execution·is·immediately·stopped·and·the·remaining·cases·are·skipped.</p><p>Before·execution·of·a·group·begins,·the·configuration·function |
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| 401 | <a·href="ct_hooks_chapter.html#manipulating">Manipulating·Tests</a>·in·section·Common·Test | 401 | <a·href="ct_hooks_chapter.html#manipulating">Manipulating·Tests</a>·in·section·Common·Test |
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| 143 | ······<p·class="built-using"> | 143 | ······<p·class="built-using"> |
| 144 | ········Built·using | 144 | ········Built·using |
| 145 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 145 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 146 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 146 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 147 | ······</p> | 147 | ······</p> |
| 148 | <p>Copyright·©·1996-202 | 148 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 149 | ····</footer> | 149 | ····</footer> |
| 150 | ··</div> | 150 | ··</div> |
| 151 | </main> | 151 | </main> |
| 152 | </div> | 152 | </div> |
| 153 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 153 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 154 | ··<script> | 154 | ··<script> |
| 155 | ··let·initialized·=·false; | 155 | ··let·initialized·=·false; |
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| 208 | ······<p·class="built-using"> | 208 | ······<p·class="built-using"> |
| 209 | ········Built·using | 209 | ········Built·using |
| 210 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 210 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 211 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 211 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 212 | ······</p> | 212 | ······</p> |
| 213 | <p>Copyright·©·1996-202 | 213 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 214 | ····</footer> | 214 | ····</footer> |
| 215 | ··</div> | 215 | ··</div> |
| 216 | </main> | 216 | </main> |
| 217 | </div> | 217 | </div> |
| 218 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 218 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 219 | ··<script> | 219 | ··<script> |
| 220 | ··let·initialized·=·false; | 220 | ··let·initialized·=·false; |
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| 184 | </span><span·class="nc">landing_pad_block</span><span·class="p">:</span><span·class="w"> | 184 | </span><span·class="nc">landing_pad_block</span><span·class="p">:</span><span·class="w"> |
| 185 | ···</span><span·class="p">@</span><span·class="ss">aggregate</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">landingpad</span><span·class="w">·</span><span·class="k">catch</span><span·class="p">,</span><span·class="w">·</span><span·class="p">@</span><span·class="ss">tag</span><span·class="w"> | 185 | ···</span><span·class="p">@</span><span·class="ss">aggregate</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">landingpad</span><span·class="w">·</span><span·class="k">catch</span><span·class="p">,</span><span·class="w">·</span><span·class="p">@</span><span·class="ss">tag</span><span·class="w"> |
| 186 | ···</span><span·class="p">@</span><span·class="ss">catched_val</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">extract</span><span·class="w">·</span><span·class="p">@</span><span·class="ss">ssa_agg</span><span·class="p">,</span><span·class="w">·</span><span·class="err">`</span><span·class="mi">0</span><span·class="err">`</span><span·class="w"> | 186 | ···</span><span·class="p">@</span><span·class="ss">catched_val</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">extract</span><span·class="w">·</span><span·class="p">@</span><span·class="ss">ssa_agg</span><span·class="p">,</span><span·class="w">·</span><span·class="err">`</span><span·class="mi">0</span><span·class="err">`</span><span·class="w"> |
| 187 | ···</span><span·class="ss">br</span><span·class="w">·</span><span·class="err">^</span><span·class="ss">common_end_of_catch</span><span·class="w"> | 187 | ···</span><span·class="ss">br</span><span·class="w">·</span><span·class="err">^</span><span·class="ss">common_end_of_catch</span><span·class="w"> |
| 188 | </span><span·class="nc">common_end_of_catch</span><span·class="p">:</span><span·class="w"> | 188 | </span><span·class="nc">common_end_of_catch</span><span·class="p">:</span><span·class="w"> |
| 189 | ··</span><span·class="p">@</span><span·class="ss">tmp</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">phi</span><span·class="w">·</span><span·class="p"·data-group-id="2 | 189 | ··</span><span·class="p">@</span><span·class="ss">tmp</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">phi</span><span·class="w">·</span><span·class="p"·data-group-id="9210117261-1">{</span><span·class="w">·</span><span·class="p">@</span><span·class="ss">catched_val</span><span·class="p">,</span><span·class="w">·</span><span·class="err">^</span><span·class="ss">landing_pad_block</span><span·class="w">·</span><span·class=[·...·truncated·by·diffoscope;·len:·29,·SHA:·9bf2dbd2f817218620f0a1c80cbde81667902a832dd5278f276b1fbf03dc59c3·...·]-1">}</span><span·class="p">,</span><span·class="w"> |
| 190 | ·············</span><span·class="p"·data-group-id="2 | 190 | ·············</span><span·class="p"·data-group-id="9210117261-2">{</span><span·class="w">·</span><span·class="p">@</span><span·class="ss">successful_result</span><span·class="p">,</span><span·class="w">·</span><span·class="err">^</span><span·class="ss">protected_blockN</span><span·class="w">·</span><span·c[·...·truncated·by·diffoscope;·len:·34,·SHA:·099e1b855f6380cea1c173373db5f511ea93e36ffb6d12c0ccd349bbe93b8084·...·]-2">}</span><span·class="w"> |
| 191 | ··</span><span·class="p">@</span><span·class="ss">result_of_catch_expr</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">catch_end</span><span·class="w">·</span><span·class="p">@</span><span·class="ss">tag</span><span·class="p">,</span><span·class="w">·</span><span·class="p">@</span><span·class="ss">tmp</span></code></pre><p>Just·as·for·a·<code·class="inline">try</code>-<code·class="inline">catch</code>·expression·all·code·that·can·cause·an | 191 | ··</span><span·class="p">@</span><span·class="ss">result_of_catch_expr</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">catch_end</span><span·class="w">·</span><span·class="p">@</span><span·class="ss">tag</span><span·class="p">,</span><span·class="w">·</span><span·class="p">@</span><span·class="ss">tmp</span></code></pre><p>Just·as·for·a·<code·class="inline">try</code>-<code·class="inline">catch</code>·expression·all·code·that·can·cause·an |
| 192 | exception·in·one·of·the·protected·blocks·must·have·explicit·control | 192 | exception·in·one·of·the·protected·blocks·must·have·explicit·control |
| 193 | flow·edges·to·the·landing·pad·block.</p><h2·id="exception-re-issuing"·class="section-heading"> | 193 | flow·edges·to·the·landing·pad·block.</p><h2·id="exception-re-issuing"·class="section-heading"> |
| 194 | ··<a·href="#exception-re-issuing"·class="hover-link"> | 194 | ··<a·href="#exception-re-issuing"·class="hover-link"> |
| 195 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 195 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 196 | ··</a> | 196 | ··</a> |
| 197 | ··<span·class="text">Exception·Re-issuing</span> | 197 | ··<span·class="text">Exception·Re-issuing</span> |
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| 230 | proven·to·always·succeed·or·fail.</p></li></ul><h2·id="variable-naming"·class="section-heading"> | 230 | proven·to·always·succeed·or·fail.</p></li></ul><h2·id="variable-naming"·class="section-heading"> |
| 231 | ··<a·href="#variable-naming"·class="hover-link"> | 231 | ··<a·href="#variable-naming"·class="hover-link"> |
| 232 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 232 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 233 | ··</a> | 233 | ··</a> |
| 234 | ··<span·class="text">Variable·Naming</span> | 234 | ··<span·class="text">Variable·Naming</span> |
| 235 | </h2> | 235 | </h2> |
| 236 | <p>A·variable·name·in·BEAM·SSA·is·either·an·atom·or·a·non-negative | 236 | <p>A·variable·name·in·BEAM·SSA·is·either·an·atom·or·a·non-negative |
| 237 | integer:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">atom</span><span·class="p"·data-group-id=" | 237 | integer:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">atom</span><span·class="p"·data-group-id="6219883343-1">(</span><span·class="p"·data-group-id="6219883343-1">)</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="nf">non_neg_integer</span><span·class="p"·data-group-id="6219883343-2">(</span><span·class="p"·d[·...·truncated·by·diffoscope;·len:·23,·SHA:·d845a07e79c00c6c2ba25320293560d602648ae06ef217e85dd0e3fcdaf1dd2a·...·]3-2">)</span></code></pre><p>In·order·to·generate·fresh·unused·variable·names,·all·compiler |
| 238 | transforms·maintain·a·counter,·the·<code·class="inline">cnt</code>-field·in·the·<code·class="inline">b_function</code>·and | 238 | transforms·maintain·a·counter,·the·<code·class="inline">cnt</code>-field·in·the·<code·class="inline">b_function</code>·and |
| 239 | <code·class="inline">opt_st</code>·records,·which·is·incremented·each·time·a·new·variable·or | 239 | <code·class="inline">opt_st</code>·records,·which·is·incremented·each·time·a·new·variable·or |
| 240 | label·is·created.·In·the·following·description·the·value·of·the | 240 | label·is·created.·In·the·following·description·the·value·of·the |
| 241 | <code·class="inline">cnt</code>-field·is·called·<code·class="inline">Cnt</code>.·The·<code·class="inline">Cnt</code>·value·is·guaranteed·to·never | 241 | <code·class="inline">cnt</code>-field·is·called·<code·class="inline">Cnt</code>.·The·<code·class="inline">Cnt</code>·value·is·guaranteed·to·never |
| 242 | clash·with·a·previously·defined·variable·name.·Therefore,·value·of | 242 | clash·with·a·previously·defined·variable·name.·Therefore,·value·of |
| 243 | <code·class="inline">Cnt</code>·can·directly·be·used·as·a·variable·name·in·the·SSA·passes.</p><p>Note·that·the·rules·were·more·complicated·before·Erlang/OTP·27,·because | 243 | <code·class="inline">Cnt</code>·can·directly·be·used·as·a·variable·name·in·the·SSA·passes.</p><p>Note·that·the·rules·were·more·complicated·before·Erlang/OTP·27,·because |
| 244 | the·<code·class="inline">Cnt</code>·value·could·clash·with·other·variables.</p> | 244 | the·<code·class="inline">Cnt</code>·value·could·clash·with·other·variables.</p> |
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| 288 | ······<p·class="built-using"> | 288 | ······<p·class="built-using"> |
| 289 | ········Built·using | 289 | ········Built·using |
| 290 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 290 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 291 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 291 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 292 | ······</p> | 292 | ······</p> |
| 293 | <p>Copyright·©·1996-202 | 293 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 294 | ····</footer> | 294 | ····</footer> |
| 295 | ··</div> | 295 | ··</div> |
| 296 | </main> | 296 | </main> |
| 297 | </div> | 297 | </div> |
| 298 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 298 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 299 | ··<script> | 299 | ··<script> |
| 300 | ··let·initialized·=·false; | 300 | ··let·initialized·=·false; |
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| 10980 | ······<p·class="built-using"> | 10980 | ······<p·class="built-using"> |
| 10981 | ········Built·using | 10981 | ········Built·using |
| 10982 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 10982 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 10983 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 10983 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 10984 | ······</p> | 10984 | ······</p> |
| 10985 | <p>Copyright·©·1996-202 | 10985 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 10986 | ····</footer> | 10986 | ····</footer> |
| 10987 | ··</div> | 10987 | ··</div> |
| 10988 | </main> | 10988 | </main> |
| 10989 | </div> | 10989 | </div> |
| 10990 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 10990 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 10991 | ··<script> | 10991 | ··<script> |
| 10992 | ··let·initialized·=·false; | 10992 | ··let·initialized·=·false; |
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| 650 | ······<p·class="built-using"> | 650 | ······<p·class="built-using"> |
| 651 | ········Built·using | 651 | ········Built·using |
| 652 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 652 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 653 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 653 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 654 | ······</p> | 654 | ······</p> |
| 655 | <p>Copyright·©·1996-202 | 655 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 656 | ····</footer> | 656 | ····</footer> |
| 657 | ··</div> | 657 | ··</div> |
| 658 | </main> | 658 | </main> |
| 659 | </div> | 659 | </div> |
| 660 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 660 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 661 | ··<script> | 661 | ··<script> |
| 662 | ··let·initialized·=·false; | 662 | ··let·initialized·=·false; |
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| 703 | ······<p·class="built-using"> | 703 | ······<p·class="built-using"> |
| 704 | ········Built·using | 704 | ········Built·using |
| 705 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 705 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 706 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 706 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 707 | ······</p> | 707 | ······</p> |
| 708 | <p>Copyright·©·1996-202 | 708 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 709 | ····</footer> | 709 | ····</footer> |
| 710 | ··</div> | 710 | ··</div> |
| 711 | </main> | 711 | </main> |
| 712 | </div> | 712 | </div> |
| 713 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 713 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 714 | ··<script> | 714 | ··<script> |
| 715 | ··let·initialized·=·false; | 715 | ··let·initialized·=·false; |
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| 149 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 149 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 150 | ··</a> | 150 | ··</a> |
| 151 | ··<span·class="text">Order·of·Compiler·Options</span> | 151 | ··<span·class="text">Order·of·Compiler·Options</span> |
| 152 | </h2> | 152 | </h2> |
| 153 | <p>Options·given·in·the·<code·class="inline">compile()</code>·attribute·in·the·source·code·take | 153 | <p>Options·given·in·the·<code·class="inline">compile()</code>·attribute·in·the·source·code·take |
| 154 | precedence·over·options·given·to·the·compiler,·which·in·turn·take | 154 | precedence·over·options·given·to·the·compiler,·which·in·turn·take |
| 155 | precedence·over·options·given·in·the·environment.</p><p>A·later·compiler·option·takes·precedence·over·an·earlier·one·in·the | 155 | precedence·over·options·given·in·the·environment.</p><p>A·later·compiler·option·takes·precedence·over·an·earlier·one·in·the |
| 156 | option·list.·Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">compile</span><span·class="p">:</span><span·class="nf">file</span><span·class="p"·data-group-id=" | 156 | option·list.·Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">compile</span><span·class="p">:</span><span·class="nf">file</span><span·class="p"·data-group-id="4868101824-1">(</span><span·class="ss">something</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4868101824-2">[</span><span·class="ss">nowarn_missing_spec</span><span·class="p">,</span><span·class="ss">warn_missing_spe[·...·truncated·by·diffoscope;·len:·102,·SHA:·7da7ddc6d9fb3c75d5cc47de0ef26bdab95d83d9bbea3bf469aa3e3ac573ac63·...·]-1">)</span><span·class="p">.</span></code></pre><p>Warnings·will·be·emitted·for·functions·without·specifications,·unless |
| 157 | the·source·code·for·module·<code·class="inline">something</code>·contains·a·<code·class="inline">compile(nowarn_missing_spec)</code> | 157 | the·source·code·for·module·<code·class="inline">something</code>·contains·a·<code·class="inline">compile(nowarn_missing_spec)</code> |
| 158 | attribute.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Change</h4><p>In·Erlang/OTP·26·and·earlier,·the·option·order·was·the·opposite·of·what | 158 | attribute.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Change</h4><p>In·Erlang/OTP·26·and·earlier,·the·option·order·was·the·opposite·of·what |
| 159 | is·described·here.</p></section><h2·id="module-inlining"·class="section-heading"> | 159 | is·described·here.</p></section><h2·id="module-inlining"·class="section-heading"> |
| 160 | ··<a·href="#module-inlining"·class="hover-link"> | 160 | ··<a·href="#module-inlining"·class="hover-link"> |
| 161 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 161 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 162 | ··</a> | 162 | ··</a> |
| 163 | ··<span·class="text">Inlining</span> | 163 | ··<span·class="text">Inlining</span> |
| Offset 173, 22 lines modified | Offset 173, 22 lines modified | ||
| 173 | all·calls·to·the·function·are·inlined.</p><p>Inlining·does·not·necessarily·improve·running·time.·For·example,·inlining·can | 173 | all·calls·to·the·function·are·inlined.</p><p>Inlining·does·not·necessarily·improve·running·time.·For·example,·inlining·can |
| 174 | increase·Beam·stack·use,·which·probably·is·detrimental·to·performance·for | 174 | increase·Beam·stack·use,·which·probably·is·detrimental·to·performance·for |
| 175 | recursive·functions.</p><p>Inlining·is·never·default.·It·must·be·explicitly·enabled·with·a·compiler·option | 175 | recursive·functions.</p><p>Inlining·is·never·default.·It·must·be·explicitly·enabled·with·a·compiler·option |
| 176 | or·a·<code·class="inline">-compile()</code>·attribute·in·the·source·module.</p><p>To·enable·inlining,·either·use·the·option·<code·class="inline">inline</code>·to·let·the·compiler·decide | 176 | or·a·<code·class="inline">-compile()</code>·attribute·in·the·source·module.</p><p>To·enable·inlining,·either·use·the·option·<code·class="inline">inline</code>·to·let·the·compiler·decide |
| 177 | which·functions·to·inline,·or·<code·class="inline">{inline,[{Name,Arity},...]}</code>·to·have·the·compiler | 177 | which·functions·to·inline,·or·<code·class="inline">{inline,[{Name,Arity},...]}</code>·to·have·the·compiler |
| 178 | inline·all·calls·to·the·given·functions.·If·the·option·is·given·inside·a | 178 | inline·all·calls·to·the·given·functions.·If·the·option·is·given·inside·a |
| 179 | <code·class="inline">compile</code>·directive·in·an·Erlang·module,·<code·class="inline">{Name,Arity}</code>·can·be·written·as | 179 | <code·class="inline">compile</code>·directive·in·an·Erlang·module,·<code·class="inline">{Name,Arity}</code>·can·be·written·as |
| 180 | <code·class="inline">Name/Arity</code>.</p><p>Example·of·explicit·inlining:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">compile</span><span·class="p"·data-group-id=" | 180 | <code·class="inline">Name/Arity</code>.</p><p>Example·of·explicit·inlining:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">compile</span><span·class="p"·data-group-id="7609831780-1">(</span><span·class="p"·data-group-id="7609831780-2">{</span><span·class="ss">inline</span><span·class="p">,</span><span·class="p"·data-group-id="7609831780-3">[</span><span·class="ss">pi</span><span·class="p">/</span><span·class="mi">0</span[·...·truncated·by·diffoscope;·len:·148,·SHA:·f5146b01460a564f7b5086963549197388c5568cfa7b9aed3c5710dbfc682e8a·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 181 | </span><span·class="nf">pi</span><span·class="p"·data-group-id=" | 181 | </span><span·class="nf">pi</span><span·class="p"·data-group-id="7609831780-4">(</span><span·class="p"·data-group-id="7609831780-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="mf">3.1416</span><span·class="p">.</span></code></pre><p>Example·of·implicit·inlining:</p><pre><code·class="text">-compile(inline).</code></pre><p>The·option·<code·class="inline">{inline_size,Size}</code>·controls·how·large·functions·that·are·allowed·to |
| 182 | be·inlined.·Default·is·<code·class="inline">24</code>,·which·keeps·the·size·of·the·inlined·code·roughly | 182 | be·inlined.·Default·is·<code·class="inline">24</code>,·which·keeps·the·size·of·the·inlined·code·roughly |
| 183 | the·same·as·the·un-inlined·version·(only·relatively·small·functions·are | 183 | the·same·as·the·un-inlined·version·(only·relatively·small·functions·are |
| 184 | inlined).</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%%·Aggressive·inlining·-·will·increase·code·size.</span><span·class="w"> | 184 | inlined).</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%%·Aggressive·inlining·-·will·increase·code·size.</span><span·class="w"> |
| 185 | </span><span·class="p">-</span><span·class="na">compile</span><span·class="p"·data-group-id=" | 185 | </span><span·class="p">-</span><span·class="na">compile</span><span·class="p"·data-group-id="0329692170-1">(</span><span·class="ss">inline</span><span·class="p"·data-group-id="0329692170-1">)</span><span·class="p">.</span><span·class="w"> |
| 186 | </span><span·class="p">-</span><span·class="na">compile</span><span·class="p"·data-group-id=" | 186 | </span><span·class="p">-</span><span·class="na">compile</span><span·class="p"·data-group-id="0329692170-2">(</span><span·class="p"·data-group-id="0329692170-3">{</span><span·class="ss">inline_size</span><span·class="p">,</span><span·class="mi">100</span><span·class="p"·data-group-id="0329692170-3">}</span><span·class="p"·data-group-id="0329692170-2">)</span><span·class="p">.</span></code></pre><h2·id="module-inlining-of-list-functions"·class="section-heading"> |
| 187 | ··<a·href="#module-inlining-of-list-functions"·class="hover-link"> | 187 | ··<a·href="#module-inlining-of-list-functions"·class="hover-link"> |
| 188 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 188 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 189 | ··</a> | 189 | ··</a> |
| 190 | ··<span·class="text">Inlining·of·List·Functions</span> | 190 | ··<span·class="text">Inlining·of·List·Functions</span> |
| 191 | </h2> | 191 | </h2> |
| 192 | <p>The·compiler·can·also·inline·various·list·manipulation·functions·from·the·module | 192 | <p>The·compiler·can·also·inline·various·list·manipulation·functions·from·the·module |
| 193 | <code·class="inline">list</code>·in·STDLIB.</p><p>This·feature·must·be·explicitly·enabled·with·a·compiler·option·or·a·<code·class="inline">-compile()</code> | 193 | <code·class="inline">list</code>·in·STDLIB.</p><p>This·feature·must·be·explicitly·enabled·with·a·compiler·option·or·a·<code·class="inline">-compile()</code> |
| Offset 900, 18 lines modified | Offset 900, 18 lines modified | ||
| 900 | features.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>This·option·has·no·effect·when·used·in·a·<code·class="inline">-compile(..)</code>·attribute.·Instead, | 900 | features.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>This·option·has·no·effect·when·used·in·a·<code·class="inline">-compile(..)</code>·attribute.·Instead, |
| 901 | the·<code·class="inline">-feature(..)</code>·directive·(described·next)·should·be·used.</p><p><a·href=""·id="feature-directive"></a>·A·feature·can·also·be·enabled·(disabled)·using | 901 | the·<code·class="inline">-feature(..)</code>·directive·(described·next)·should·be·used.</p><p><a·href=""·id="feature-directive"></a>·A·feature·can·also·be·enabled·(disabled)·using |
| 902 | the·<code·class="inline">-feature(Feature,·enable·|·disable).</code>·module·directive.·Note·that·this | 902 | the·<code·class="inline">-feature(Feature,·enable·|·disable).</code>·module·directive.·Note·that·this |
| 903 | directive·can·only·be·present·in·a·prefix·of·the·file,·before·exports·and | 903 | directive·can·only·be·present·in·a·prefix·of·the·file,·before·exports·and |
| 904 | function·definitions.·This·is·the·preferred·method·of·enabling·and·disabling | 904 | function·definitions.·This·is·the·preferred·method·of·enabling·and·disabling |
| 905 | features,·since·it·is·a·local·property·of·a·module.</p></section></li><li><p><strong><code·class="inline">makedep</code></strong>·-·Produces·a·Makefile·rule·to·track·headers·dependencies.·No | 905 | features,·since·it·is·a·local·property·of·a·module.</p></section></li><li><p><strong><code·class="inline">makedep</code></strong>·-·Produces·a·Makefile·rule·to·track·headers·dependencies.·No |
| 906 | object·file·is·produced.</p><p>By·default,·this·rule·is·written·to·<code·class="inline"><File>.Pbeam</code>.·However,·if·option | 906 | object·file·is·produced.</p><p>By·default,·this·rule·is·written·to·<code·class="inline"><File>.Pbeam</code>.·However,·if·option |
| 907 | <code·class="inline">binary</code>·is·set,·nothing·is·written·and·the·rule·is·returned·in·<code·class="inline">Binary</code>.</p><p>The·output·will·be·encoded·in·UTF-8.</p><p>For·example,·if·you·have·the·following·module:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 907 | <code·class="inline">binary</code>·is·set,·nothing·is·written·and·the·rule·is·returned·in·<code·class="inline">Binary</code>.</p><p>The·output·will·be·encoded·in·UTF-8.</p><p>For·example,·if·you·have·the·following·module:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="2222410330-1">(</span><span·class="ss">module</span><span·class="p"·data-group-id="2222410330-1">)</span><span·class="p">.</span><span·class="w"> |
| 908 | </span><span·class="w"> | 908 | </span><span·class="w"> |
| 909 | </span><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id=" | 909 | </span><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id="2222410330-2">(</span><span·class="s">"eunit/include/eunit.hrl"</span><span·class="p"·data-group-id="2222410330-2">)</span><span·class="p">.</span><span·class="w"> |
| 910 | </span><span·class="p">-</span><span·class="na">include</span><span·class="p"·data-group-id=" | 910 | </span><span·class="p">-</span><span·class="na">include</span><span·class="p"·data-group-id="2222410330-3">(</span><span·class="s">"header.hrl"</span><span·class="p"·data-group-id="2222410330-3">)</span><span·class="p">.</span></code></pre><p>The·Makefile·rule·generated·by·this·option·looks·as·follows:</p><pre><code·class="text">module.beam:·module.erl·\ |
| 911 | ··/usr/local/lib/erlang/lib/eunit/include/eunit.hrl·\ | 911 | ··/usr/local/lib/erlang/lib/eunit/include/eunit.hrl·\ |
| 912 | ··header.hrl</code></pre></li><li><p><strong><code·class="inline">makedep_side_effect</code></strong>·-·The·dependencies·are·created·as·a·side·effect·to | 912 | ··header.hrl</code></pre></li><li><p><strong><code·class="inline">makedep_side_effect</code></strong>·-·The·dependencies·are·created·as·a·side·effect·to |
| 913 | the·normal·compilation·process.·This·means·that·the·object·file·will·also·be | 913 | the·normal·compilation·process.·This·means·that·the·object·file·will·also·be |
| 914 | produced.·This·option·override·the·<code·class="inline">makedep</code>·option.</p></li><li><p><strong><code·class="inline">{makedep_output,·Output}</code></strong>·-·Writes·generated·rules·to·<code·class="inline">Output</code>·instead·of | 914 | produced.·This·option·override·the·<code·class="inline">makedep</code>·option.</p></li><li><p><strong><code·class="inline">{makedep_output,·Output}</code></strong>·-·Writes·generated·rules·to·<code·class="inline">Output</code>·instead·of |
| 915 | the·default·<code·class="inline"><File>.Pbeam</code>.·<code·class="inline">Output</code>·can·be·a·filename·or·an·<code·class="inline">io_device()</code>.·To | 915 | the·default·<code·class="inline"><File>.Pbeam</code>.·<code·class="inline">Output</code>·can·be·a·filename·or·an·<code·class="inline">io_device()</code>.·To |
| 916 | write·to·stdout,·use·<code·class="inline">standard_io</code>.·However,·if·<code·class="inline">binary</code>·is·set,·nothing·is | 916 | write·to·stdout,·use·<code·class="inline">standard_io</code>.·However,·if·<code·class="inline">binary</code>·is·set,·nothing·is |
| 917 | written·to·<code·class="inline">Output</code>·and·the·result·is·returned·to·the·caller·with | 917 | written·to·<code·class="inline">Output</code>·and·the·result·is·returned·to·the·caller·with |
| Offset 969, 15 lines modified | Offset 969, 15 lines modified | ||
| 969 | that·verification·(there·will·not·even·be·a·warning·if·there·is·a | 969 | that·verification·(there·will·not·even·be·a·warning·if·there·is·a |
| 970 | mismatch).</p></li><li><p><strong><code·class="inline">{no_auto_import,[{F,A},·...]}</code></strong>·-·Makes·the·function·<code·class="inline">F/A</code>·no·longer·being | 970 | mismatch).</p></li><li><p><strong><code·class="inline">{no_auto_import,[{F,A},·...]}</code></strong>·-·Makes·the·function·<code·class="inline">F/A</code>·no·longer·being |
| 971 | auto-imported·from·the·<code·class="inline">erlang</code>·module,·which·resolves·BIF·name·clashes.·This | 971 | auto-imported·from·the·<code·class="inline">erlang</code>·module,·which·resolves·BIF·name·clashes.·This |
| 972 | option·must·be·used·to·resolve·name·clashes·with·auto-imported·BIFs·that·existed | 972 | option·must·be·used·to·resolve·name·clashes·with·auto-imported·BIFs·that·existed |
| 973 | before·Erlang/OTP·R14A··when·calling·a·local·function·with·the·same·name | 973 | before·Erlang/OTP·R14A··when·calling·a·local·function·with·the·same·name |
| 974 | as·an·auto-imported·BIF·without·module·prefix.</p><p>If·the·BIF·is·to·be·called,·use·the·<code·class="inline">erlang</code>·module·prefix | 974 | as·an·auto-imported·BIF·without·module·prefix.</p><p>If·the·BIF·is·to·be·called,·use·the·<code·class="inline">erlang</code>·module·prefix |
| 975 | in·the·call,·not·<code·class="inline">{no_auto_import,[{F,A},·...]}</code>.</p><p>If·this·option·is·written·in·the·source·code,·as·a·<code·class="inline">-compile</code>·directive,·the | 975 | in·the·call,·not·<code·class="inline">{no_auto_import,[{F,A},·...]}</code>.</p><p>If·this·option·is·written·in·the·source·code,·as·a·<code·class="inline">-compile</code>·directive,·the |
| 976 | syntax·<code·class="inline">F/A</code>·can·be·used·instead·of·<code·class="inline">{F,A}</code>.·For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">compile</span><span·class="p"·data-group-id=" | 976 | syntax·<code·class="inline">F/A</code>·can·be·used·instead·of·<code·class="inline">{F,A}</code>.·For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">compile</span><span·class="p"·data-group-id="1589641219-1">(</span><span·class="p"·data-group-id="1589641219-2">{</span><span·class="ss">no_auto_import</span><span·class="p">,</span><span·class="p"·data-group-id="1589641219-3">[</span><span·class="ss">error</span><span·class="p">/</span><span·class="[·...·truncated·by·diffoscope;·len:·159,·SHA:·d4ed3705dfa8ca7d4a29c26fa02751590f43b6a18200b828d37ad2459f3a476e·...·]-1">)</span><span·class="p">.</span></code></pre></li><li><p><strong><code·class="inline">no_auto_import</code></strong>·-·Do·not·auto-import·any·functions·from·<code·class="inline">erlang</code>·module.</p></li><li><p><strong><code·class="inline">no_line_info</code></strong>·-·Omits·line·number·information·to·produce·a·slightly |
| 977 | smaller·output·file.</p></li><li><p><strong><code·class="inline">no_lint</code></strong>·-·Skips·the·pass·that·checks·for·errors·and·warnings.·Only | 977 | smaller·output·file.</p></li><li><p><strong><code·class="inline">no_lint</code></strong>·-·Skips·the·pass·that·checks·for·errors·and·warnings.·Only |
| 978 | applicable·together·with·the·<code·class="inline">from_abstr</code>·option.·This·is·mainly·for | 978 | applicable·together·with·the·<code·class="inline">from_abstr</code>·option.·This·is·mainly·for |
| 979 | implementations·of·other·languages·on·top·of·Erlang,·which·have·already·done | 979 | implementations·of·other·languages·on·top·of·Erlang,·which·have·already·done |
| 980 | their·own·checks·to·guarantee·correctness·of·the·code.</p><p>Caveat:·When·this·option·is·used,·there·are·no·guarantees·that·the·code·output | 980 | their·own·checks·to·guarantee·correctness·of·the·code.</p><p>Caveat:·When·this·option·is·used,·there·are·no·guarantees·that·the·code·output |
| 981 | by·the·compiler·is·correct·and·safe·to·use.·The·responsibility·for·correctness | 981 | by·the·compiler·is·correct·and·safe·to·use.·The·responsibility·for·correctness |
| 982 | lies·on·the·code·or·person·generating·the·abstract·format.·If·the·code | 982 | lies·on·the·code·or·person·generating·the·abstract·format.·If·the·code |
| 983 | contains·errors,·the·compiler·may·crash·or·produce·unsafe·code.</p></li><li><p><strong><code·class="inline">{extra_chunks,·[{binary(),·binary()}]}</code></strong>·-·Pass·extra·chunks·to·be·stored | 983 | contains·errors,·the·compiler·may·crash·or·produce·unsafe·code.</p></li><li><p><strong><code·class="inline">{extra_chunks,·[{binary(),·binary()}]}</code></strong>·-·Pass·extra·chunks·to·be·stored |
| Offset 1345, 15 lines modified | Offset 1345, 15 lines modified | ||
| 1345 | ······<p·class="built-using"> | 1345 | ······<p·class="built-using"> |
| 1346 | ········Built·using | 1346 | ········Built·using |
| 1347 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1347 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1348 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1348 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1349 | ······</p> | 1349 | ······</p> |
| 1350 | <p>Copyright·©·1996-202 | 1350 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1351 | ····</footer> | 1351 | ····</footer> |
| 1352 | ··</div> | 1352 | ··</div> |
| 1353 | </main> | 1353 | </main> |
| 1354 | </div> | 1354 | </div> |
| 1355 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1355 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1356 | ··<script> | 1356 | ··<script> |
| 1357 | ··let·initialized·=·false; | 1357 | ··let·initialized·=·false; |
| Offset 133, 58 lines modified | Offset 133, 58 lines modified | ||
| 133 | </h2> | 133 | </h2> |
| 134 | <h3·id="fixed-bugs-and-malfunctions"·class="section-heading"> | 134 | <h3·id="fixed-bugs-and-malfunctions"·class="section-heading"> |
| 135 | ··<a·href="#fixed-bugs-and-malfunctions"·class="hover-link"> | 135 | ··<a·href="#fixed-bugs-and-malfunctions"·class="hover-link"> |
| 136 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 136 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 137 | ··</a> | 137 | ··</a> |
| 138 | ··<span·class="text">Fixed·Bugs·and·Malfunctions</span> | 138 | ··<span·class="text">Fixed·Bugs·and·Malfunctions</span> |
| 139 | </h3> | 139 | </h3> |
| 140 | <ul><li><p>The·compiler·will·now·emit·warnings·when·some·map·patterns·cannot·possibly·match·because·a·previous·clauses·matches·the·same·pattern.·For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">mm_1</span><span·class="p"·data-group-id=" | 140 | <ul><li><p>The·compiler·will·now·emit·warnings·when·some·map·patterns·cannot·possibly·match·because·a·previous·clauses·matches·the·same·pattern.·For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">mm_1</span><span·class="p"·data-group-id="1992021340-1">(</span><span·class="p"·data-group-id="1992021340-2">#{</span><span·class="p"·data-group-id="1992021340-2">}</span><span·class="p"·data-group-id="1992021340-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">a</span><span·class="p">;</span><span·class="w"> |
| 141 | </span><span·class="nf">mm_1</span><span·class="p"·data-group-id=" | 141 | </span><span·class="nf">mm_1</span><span·class="p"·data-group-id="1992021340-3">(</span><span·class="p"·data-group-id="1992021340-4">#{</span><span·class="ss">b</span><span·class="w">·</span><span·class="p">:=</span><span·class="w">·</span><span·class="n">B</span><span·class="p"·data-group-id="1992021340-4">}</span><span[·...·truncated·by·diffoscope;·len:·290,·SHA:·3ff6cc069dbdc0f76827372a98fe3274d34c02751d144e8167d5f7a1465b16cb·...·]0-5">}</span><span·class="p">.</span><span·class="w"> |
| 142 | </span><span·class="nf">mm_2</span><span·class="p"·data-group-id=" | 142 | </span><span·class="nf">mm_2</span><span·class="p"·data-group-id="1992021340-6">(</span><span·class="p"·data-group-id="1992021340-7">#{</span><span·class="ss">a</span><span·class="w">·</span><span·class="p">:=</span><span·class="w">·</span><span·class="n">A</span><span·class="p"·data-group-id="1992021340-7">}</span><span[·...·truncated·by·diffoscope;·len:·290,·SHA:·9cfbbe95768963931df1bbd9e3b8d64d13e65acc552fe1cfb67b180eac995177·...·]0-8">}</span><span·class="p">;</span><span·class="w"> |
| 143 | </span><span·class="nf">mm_2</span><span·class="p"·data-group-id=" | 143 | </span><span·class="nf">mm_2</span><span·class="p"·data-group-id="1992021340-9">(</span><span·class="p"·data-group-id="1992021340-10">#{</span><span·class="ss">a</span><span·class="w">·</span><span·class="p">:=</span><span·class="w">·</span><span·class="n">A</span><span·class="p">,</span><span·class="w">·</span><span·cla[·...·truncated·by·diffoscope;·len:·511,·SHA:·3fb7ed8c45de1ca717467b27a7a357bbcc33ba55adedce1d5f9e604d7d7544c4·...·]0-11">}</span><span·class="p">.</span></code></pre><p>The·second·clause·of·these·function·can·never·match·and·the·compiler·will·now·emit·a·warning·for·both·of·them.</p><p>Note·that·the·compiler·is·not·guaranteed·to·emit·warnings·for·every·possible·map·pattern·that·cannot·match.</p><p>Own·Id:·OTP-19141·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/8558"·title="">GH-8558</a>,·<a·href="https://github.com/erlang/otp/pull/8600"·title="">PR-8600</a></p></li><li><p>The·size·of·an·atom·in·the·Erlang·source·code·was·limited·to·255·bytes·in·previous·releases,·meaning·that·an·atom·containing·only·emojis·could·contain·only·63·emojis.</p><p>While·atoms·are·still·only·allowed·to·contain·255·characters,·the·number·of·bytes·is·no·longer·limited.</p><p>External·tools·that·parse·the·<code·class="inline">AtU8</code>·chunk·of·a·BEAM·file·directly·need·to·be·updated.·Tools·that·use·<a·href="../../../../lib/stdlib-7.0/doc/html/beam_lib.html#chunks/2"><code·class="inline">beam_lib:chunks(Beam,·[atoms])</code></a>·to·read·the·atom·table·will·continue·to·work.</p><p><strong><em>·POTENTIAL·INCOMPATIBILITY·</em></strong></p><p>Own·Id:·OTP-19285·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8913"·title="">PR-8913</a></p></li><li><p>The·literals·chunk·in·BEAM·is·no·longer·compressed,·resulting·in·slightly·smaller·BEAM·files·when·a·BEAM·file·is·stripped·using·<a·href="../../../../lib/stdlib-7.0/doc/html/beam_lib.html#strip_files/1"><code·class="inline">beam_lib:strip_files/1</code></a>.</p><p>This·is·a·potential·incompatibility·for·tools·that·read·and·interpret·the·contents·of·the·literal·chunk.·One·way·to·update·such·tools·to·work·with·the·new·format·is·to·retrieve·the·chunk·using·<a·href="../../../../lib/stdlib-7.0/doc/html/beam_lib.html#chunks/2"><code·class="inline">beam_lib:chunks(Beam,·[literals])</code></a>.</p><p><strong><em>·POTENTIAL·INCOMPATIBILITY·</em></strong></p><p>Own·Id:·OTP-19323·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/8967"·title="">GH-8967</a>,·<a·href="https://github.com/erlang/otp/pull/8988"·title="">PR-8988</a></p></li><li><p>The·final·validation·step·in·the·compiler·will·now·reject·modules·containing·functions·with·more·than·255·arguments.·No·impact·is·expected·as·the·emulator·has·always·refused·to·load·these·modules.</p><p>Own·Id:·OTP-19376·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/9113"·title="">GH-9113</a>,·<a·href="https://github.com/erlang/otp/pull/9121"·title="">PR-9121</a></p></li><li><p>Replaced·calls·to·deprecated·<code·class="inline">crypto:start()</code>·with·<code·class="inline">application:start(crypto)</code>.</p><p>Own·Id:·OTP-19485·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8592"·title="">PR-8592</a></p></li><li><p>Refactor·code·to·not·rely·on·<code·class="inline">+nowarn_shadow_vars</code>.</p><p>Own·Id:·OTP-19574·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9678"·title="">PR-9678</a></p></li></ul><h3·id="improvements-and-new-features"·class="section-heading"> |
| 144 | ··<a·href="#improvements-and-new-features"·class="hover-link"> | 144 | ··<a·href="#improvements-and-new-features"·class="hover-link"> |
| 145 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 145 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 146 | ··</a> | 146 | ··</a> |
| 147 | ··<span·class="text">Improvements·and·New·Features</span> | 147 | ··<span·class="text">Improvements·and·New·Features</span> |
| 148 | </h3> | 148 | </h3> |
| 149 | <ul><li><p>The·EEP-48·doc·chunk·embedded·into·<code·class="inline">.beam</code>·files·by·the·compiler·is·now·<code·class="inline">compressed</code>·and·<code·class="inline">deterministic</code>.</p><p>Own·Id:·OTP-19096·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8494"·title="">PR-8494</a></p></li><li><p>Provided·that·the·map·argument·for·a·<a·href="../../../../lib/stdlib-7.0/doc/html/maps.html#put/3"><code·class="inline">maps:put/3</code></a>·call·is·known·to·the·compiler·to·be·a·map,·the·compiler·will·replace·such·calls·with·the·corresponding·update·using·the·map·syntax.</p><p>Own·Id:·OTP-19115·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8540"·title="">PR-8540</a></p></li><li><p>For·various·error·types,·the·compiler·now·tries·to·suggest·potential·fixes·by·adding·"did·you·mean·...?"·at·the·end·of·error·messages.</p><p>When·a·function·is·used·with·wrong·arity,·the·compiler·will·try·to·suggest·a·defined·function·with·the·same·name·but·a·different·arity.·For·example,·given·the·following·module:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 149 | <ul><li><p>The·EEP-48·doc·chunk·embedded·into·<code·class="inline">.beam</code>·files·by·the·compiler·is·now·<code·class="inline">compressed</code>·and·<code·class="inline">deterministic</code>.</p><p>Own·Id:·OTP-19096·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8494"·title="">PR-8494</a></p></li><li><p>Provided·that·the·map·argument·for·a·<a·href="../../../../lib/stdlib-7.0/doc/html/maps.html#put/3"><code·class="inline">maps:put/3</code></a>·call·is·known·to·the·compiler·to·be·a·map,·the·compiler·will·replace·such·calls·with·the·corresponding·update·using·the·map·syntax.</p><p>Own·Id:·OTP-19115·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8540"·title="">PR-8540</a></p></li><li><p>For·various·error·types,·the·compiler·now·tries·to·suggest·potential·fixes·by·adding·"did·you·mean·...?"·at·the·end·of·error·messages.</p><p>When·a·function·is·used·with·wrong·arity,·the·compiler·will·try·to·suggest·a·defined·function·with·the·same·name·but·a·different·arity.·For·example,·given·the·following·module:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="9345913418-1">(</span><span·class="ss">typos</span><span·class="p"·data-group-id="9345913418-1">)</span><span·class="p">.</span><span·class="w"> |
| 150 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 150 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="9345913418-2">(</span><span·class="p"·data-group-id="9345913418-3">[</span><span·class="ss">t</span><span·class="p">/</span><span·class="mi">0</span><span·class="p"·data-group-id="9345913418-3">]</span><span·class="p"·data-group-id="9345913418-2">)</span><span·class="p">.</span><span·class="w"> |
| 151 | </span><span·class="nf">bar</span><span·class="p"·data-group-id=" | 151 | </span><span·class="nf">bar</span><span·class="p"·data-group-id="9345913418-4">(</span><span·class="n">A</span><span·class="p"·data-group-id="9345913418-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">A</span><span·class="p">.</span><span·class="w"> |
| 152 | </span><span·class="nf">bar</span><span·class="p"·data-group-id=" | 152 | </span><span·class="nf">bar</span><span·class="p"·data-group-id="9345913418-5">(</span><span·class="n">A</span><span·class="p">,</span><span·class="n">A</span><span·class="p">,</span><span·class="n">A</span><span·class="p"·data-group-id="9345913418-5">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">A</span><span·class="p">.</span><span·class="w"> |
| 153 | </span><span·class="nf">bar</span><span·class="p"·data-group-id=" | 153 | </span><span·class="nf">bar</span><span·class="p"·data-group-id="9345913418-6">(</span><span·class="n">A</span><span·class="p">,</span><span·class="n">A</span><span·class="p">,</span><span·class="n">A</span><span·class="p">,</span><span·class="n">A</span><span·class="p"·data-group-id="9345913418-6">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">A</span><span·class="p">.</span><span·class="w"> |
| 154 | </span><span·class="nf">t</span><span·class="p"·data-group-id=" | 154 | </span><span·class="nf">t</span><span·class="p"·data-group-id="9345913418-7">(</span><span·class="p"·data-group-id="9345913418-7">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="nf">bar</span><span·class="p"·data-group-id="9345913418-8">(</span><span·class="mi">0</span>[·...·truncated·by·diffoscope;·len:·114,·SHA:·bf047026737d0c23c58da85c76902d4e4365bc08814329ccbe351359f4899c02·...·]-8">)</span><span·class="p">.</span></code></pre><p>The·compiler·will·emit·the·following·message:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="ss">typo</span><span·class="p">.</span><span·class="nc">erl</span><span·class="p">:</span><span·class="mi">6</span><span·class="p">:</span><span·class="mi">12</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">function</span><span·class="w">·</span><span·class="ss">bar</span><span·class="p">/</span><span·class="mi">2</span><span·class="w">·</span><span·class="ss">undefined</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">did</span><span·class="w">·</span><span·class="ss">you</span><span·class="w">·</span><span·class="ss">mean</span><span·class="w">·</span><span·class="ss">bar</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">3</span><span·class="p">,</span><span·class="mi">4</span><span·class="o">?</span><span·class="w"> |
| 155 | </span><span·class="c1">%···6|·····t()·->·bar(0,·0).</span><span·class="w"> | 155 | </span><span·class="c1">%···6|·····t()·->·bar(0,·0).</span><span·class="w"> |
| 156 | </span><span·class="c1">%····|············^</span></code></pre><p>For·compiler·errors·that·can·easily·be·caused·by·typos,·the·compiler·will·try·to·suggest·what·the·correct·variable·or·function·name,·could·be.·For·example,·given·the·following·module:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 156 | </span><span·class="c1">%····|············^</span></code></pre><p>For·compiler·errors·that·can·easily·be·caused·by·typos,·the·compiler·will·try·to·suggest·what·the·correct·variable·or·function·name,·could·be.·For·example,·given·the·following·module:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="2539156506-1">(</span><span·class="ss">typos</span><span·class="p"·data-group-id="2539156506-1">)</span><span·class="p">.</span><span·class="w"> |
| 157 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 157 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="2539156506-2">(</span><span·class="p"·data-group-id="2539156506-3">[</span><span·class="ss">bar</span><span·class="p">/</span><span·class="mi">2</span><span·class="p"·data-group-id="2539156506-3">]</span><span·class="p"·data-group-id="2539156506-2">)</span><span·class="p">.</span><span·class="w"> |
| 158 | </span><span·class="nf">bar</span><span·class="p"·data-group-id=" | 158 | </span><span·class="nf">bar</span><span·class="p"·data-group-id="2539156506-4">(</span><span·class="n">A0</span><span·class="p">,</span><span·class="w">·</span><span·class="n">B0</span><span·class="p"·data-group-id="2539156506-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 159 | ····</span><span·class="n">A</span><span·class="w">·</span><span·class="o">+</span><span·class="w">·</span><span·class="n">B</span><span·class="p">.</span></code></pre><p>the·compiler·will·emit·the·following·error·messages:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="ss">typos</span><span·class="p">.</span><span·class="nc">erl</span><span·class="p">:</span><span·class="mi">5</span><span·class="p">:</span><span·class="mi">5</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">variable</span><span·class="w">·</span><span·class="ss">'A'</span><span·class="w">·</span><span·class="ss">is</span><span·class="w">·</span><span·class="ss">unbound</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">did</span><span·class="w">·</span><span·class="ss">you</span><span·class="w">·</span><span·class="ss">mean</span><span·class="w">·</span><span·class="ss">'A0'</span><span·class="o">?</span><span·class="w"> | 159 | ····</span><span·class="n">A</span><span·class="w">·</span><span·class="o">+</span><span·class="w">·</span><span·class="n">B</span><span·class="p">.</span></code></pre><p>the·compiler·will·emit·the·following·error·messages:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="ss">typos</span><span·class="p">.</span><span·class="nc">erl</span><span·class="p">:</span><span·class="mi">5</span><span·class="p">:</span><span·class="mi">5</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">variable</span><span·class="w">·</span><span·class="ss">'A'</span><span·class="w">·</span><span·class="ss">is</span><span·class="w">·</span><span·class="ss">unbound</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">did</span><span·class="w">·</span><span·class="ss">you</span><span·class="w">·</span><span·class="ss">mean</span><span·class="w">·</span><span·class="ss">'A0'</span><span·class="o">?</span><span·class="w"> |
| 160 | </span><span·class="c1">%····5|·····A·+·B.</span><span·class="w"> | 160 | </span><span·class="c1">%····5|·····A·+·B.</span><span·class="w"> |
| 161 | </span><span·class="c1">%·····|·····^</span><span·class="w"> | 161 | </span><span·class="c1">%·····|·····^</span><span·class="w"> |
| 162 | </span><span·class="ss">typos</span><span·class="p">.</span><span·class="nc">erl</span><span·class="p">:</span><span·class="mi">5</span><span·class="p">:</span><span·class="mi">9</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">variable</span><span·class="w">·</span><span·class="ss">'B'</span><span·class="w">·</span><span·class="ss">is</span><span·class="w">·</span><span·class="ss">unbound</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">did</span><span·class="w">·</span><span·class="ss">you</span><span·class="w">·</span><span·class="ss">mean</span><span·class="w">·</span><span·class="ss">'B0'</span><span·class="o">?</span><span·class="w"> | 162 | </span><span·class="ss">typos</span><span·class="p">.</span><span·class="nc">erl</span><span·class="p">:</span><span·class="mi">5</span><span·class="p">:</span><span·class="mi">9</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">variable</span><span·class="w">·</span><span·class="ss">'B'</span><span·class="w">·</span><span·class="ss">is</span><span·class="w">·</span><span·class="ss">unbound</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">did</span><span·class="w">·</span><span·class="ss">you</span><span·class="w">·</span><span·class="ss">mean</span><span·class="w">·</span><span·class="ss">'B0'</span><span·class="o">?</span><span·class="w"> |
| 163 | </span><span·class="c1">%····5|·····A·+·B.</span><span·class="w"> | 163 | </span><span·class="c1">%····5|·····A·+·B.</span><span·class="w"> |
| 164 | </span><span·class="c1">%·····|·········^</span></code></pre><p>Error·types·that·now·suggest·correct·arities:·<code·class="inline">bad_inline</code>,·<code·class="inline">undefined_nif</code>,·<code·class="inline">bad_nowarn_unused_function</code>,·<code·class="inline">bad_nowarn_bif_clash</code>,·<code·class="inline">undefined_function</code>.</p><p>Error·types·that·now·suggest·correct·names:·<code·class="inline">bad_inline</code>,·<code·class="inline">undefined_nif</code>,·<code·class="inline">bad_nowarn_unused_function</code>,·<code·class="inline">undefined_on_load</code>,·<code·class="inline">undefined_function</code>,·<code·class="inline">undefined_record</code>,·<code·class="inline">undefined_field</code>,·<code·class="inline">unbound_var</code>.</p><p>Using·a·function·with·wrong·arity·has·higher·precedence·than·having·a·typo·in·the·function·name.·If·the·compiler·can·find·a·defined·function·with·the·same·name·but·a·different·arity,·it·will·not·suggest·a·defined·function·with·a·close-enough·name,·regardless·of·arity.</p><p>Own·Id:·OTP-19180·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8699"·title="">PR-8699</a>,·<a·href="https://github.com/erlang/otp/pull/9094"·title="">PR-9094</a></p></li><li><p>Comprehensions·have·been·extended·with·zip·generators··according·to·<a·href="https://www.erlang.org/eeps/eep-0073">EEP·73</a>.·</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="p"·data-group-id=" | 164 | </span><span·class="c1">%·····|·········^</span></code></pre><p>Error·types·that·now·suggest·correct·arities:·<code·class="inline">bad_inline</code>,·<code·class="inline">undefined_nif</code>,·<code·class="inline">bad_nowarn_unused_function</code>,·<code·class="inline">bad_nowarn_bif_clash</code>,·<code·class="inline">undefined_function</code>.</p><p>Error·types·that·now·suggest·correct·names:·<code·class="inline">bad_inline</code>,·<code·class="inline">undefined_nif</code>,·<code·class="inline">bad_nowarn_unused_function</code>,·<code·class="inline">undefined_on_load</code>,·<code·class="inline">undefined_function</code>,·<code·class="inline">undefined_record</code>,·<code·class="inline">undefined_field</code>,·<code·class="inline">unbound_var</code>.</p><p>Using·a·function·with·wrong·arity·has·higher·precedence·than·having·a·typo·in·the·function·name.·If·the·compiler·can·find·a·defined·function·with·the·same·name·but·a·different·arity,·it·will·not·suggest·a·defined·function·with·a·close-enough·name,·regardless·of·arity.</p><p>Own·Id:·OTP-19180·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8699"·title="">PR-8699</a>,·<a·href="https://github.com/erlang/otp/pull/9094"·title="">PR-9094</a></p></li><li><p>Comprehensions·have·been·extended·with·zip·generators··according·to·<a·href="https://www.erlang.org/eeps/eep-0073">EEP·73</a>.·</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="p"·data-group-id="9896710286-1">[</span><span·class="n">A</span><span·class="o">+</span><span·class="n">B</span><span·class="w">·</span><span·class="p">||</span><span·class="w">·</span><span·class="n">A</span><span·class="w">·</span><span·class="o"><-</span><span·class="[·...·truncated·by·diffoscope;·len:·691,·SHA:·39a68631b1baf77b1f65210911dee5d167e777529841d73ae1f8a71448fff869·...·]-1">]</span><span·class="p">.</span><span·class="w"> |
| 165 | </span><span·class="p"·data-group-id=" | 165 | </span><span·class="p"·data-group-id="9896710286-4">[</span><span·class="mi">5</span><span·class="p">,</span><span·class="mi">7</span><span·class="p">,</span><span·class="mi">9</span><span·class="p"·data-group-id="9896710286-4">]</span></code></pre><p>Own·Id:·OTP-19184·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8926"·title="">PR-8926</a></p></li><li><p>Documentation·chunks·(EEP-48)·has·been·updated·to·include·the·following·reserved·metadata·fields:·<code·class="inline">behaviours</code>,·<code·class="inline">group</code>,·<code·class="inline">source_path</code>,·and·<code·class="inline">source_annos</code>.·The·compiler·has·also·been·updated·to·emit·this·metadata.·See·the·<a·href="../../../../lib/kernel-10.3/doc/html/eep48_chapter.html">EEP-48·documentation</a>·for·more·details.</p><p>Own·Id:·OTP-19306·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8945"·title="">PR-8945</a>,·<a·href="https://github.com/erlang/otp/pull/8975"·title="">PR-8975</a></p></li><li><p>New·strict·generators·have·been·added·for·comprehensions.</p><p>The·currently·existing·generators·are·"relaxed":·they·ignore·terms·in·the |
| 166 | right-hand·side·expression·that·do·not·match·the·left-hand·side·pattern.</p><p>The·new·strict·generators·fail·with·exception·<code·class="inline">badmatch</code>·if·a·pattern·doesn't·match.</p><p>Examples:</p><p>Using·the·current·relaxed·generator·operator·<code·class="inline"><-</code>,·any·element·not·matching | 166 | right-hand·side·expression·that·do·not·match·the·left-hand·side·pattern.</p><p>The·new·strict·generators·fail·with·exception·<code·class="inline">badmatch</code>·if·a·pattern·doesn't·match.</p><p>Examples:</p><p>Using·the·current·relaxed·generator·operator·<code·class="inline"><-</code>,·any·element·not·matching |
| 167 | the·pattern·<code·class="inline">{_,_}</code>·will·be·silently·discarded:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="p"·data-group-id="5 | 167 | the·pattern·<code·class="inline">{_,_}</code>·will·be·silently·discarded:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="p"·data-group-id="5329956147-1">[</span><span·class="n">T</span><span·class="w">·</span><span·class="p">||</span><span·class="w">·</span><span·class="p"·data-group-id="5329956147-2">{</span><span·class="p">_</span><span·class="p">,</span><span·class="p">_</span><span·class="[·...·truncated·by·diffoscope;·len:·750,·SHA:·ec07abb55d1fbdd40369d523941200fa1097ca8daa454918db4d6c9ff1cea2e1·...·]-1">]</span><span·class="p">.</span><span·class="w"> |
| 168 | </span><span·class="p"·data-group-id="5 | 168 | </span><span·class="p"·data-group-id="5329956147-6">[</span><span·class="p"·data-group-id="5329956147-7">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="mi">1</span><span·class="p"·data-group-id="5329956147-7">}</span><span·class="p">,</span><span·class="p"·data-group-id=[·...·truncated·by·diffoscope;·len:·195,·SHA:·d8802a3afb333852ac13d6b80ccdc598599d748d4966a20fb2f396d3aa930eb2·...·]-6">]</span></code></pre><p>If·the·intention·is·that·all·lists·processed·by·a·list·comprehension·must·only |
| 169 | contain·tuples·of·size·two,·using·the·new·strict·version·of·the·operator·ensures | 169 | contain·tuples·of·size·two,·using·the·new·strict·version·of·the·operator·ensures |
| 170 | that·term·not·matching·will·cause·a·crash:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">2>·</span><span·class="p"·data-group-id=" | 170 | that·term·not·matching·will·cause·a·crash:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">2>·</span><span·class="p"·data-group-id="2136601694-1">[</span><span·class="n">T</span><span·class="w">·</span><span·class="p">||</span><span·class="w">·</span><span·class="p"·data-group-id="2136601694-2">{</span><span·class="p">_</span><span·class="p">,</span><span·class="p">_</span><span·class=[·...·truncated·by·diffoscope;·len:·752,·SHA:·421f8318c80aceaf03ffddab389b110a9dae01e336bbb34be163e7ee64108e81·...·]-1">]</span><span·class="p">.</span><span·class="w"> |
| 171 | </span><span·class="gt">**·exception·error:·no·match·of·right·hand·side·value·ok</span></code></pre><p>Using·the·strict·generator·operator·to·mark·the·intention·that·all·list·elements·must·match·the·pattern·could·help·finding·mistakes·quicker·if·something·unpexected·is·added·to·the·list·processed·by·the·generator.</p><p>The·strict·version·for·bitstring·generators·is·<code·class="inline"><:=</code>.</p><p>Own·Id:·OTP-19317·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8625"·title="">PR-8625</a></p></li><li><p>New·options·for·suppressing·behaviour·warnings·have·been·added:</p><ul><li><code·class="inline">nowarn_conflicting_behaviours</code></li><li><code·class="inline">nowarn_undefined_behaviour_func</code></li><li><code·class="inline">nowarn_undefined_behaviour</code></li><li><code·class="inline">nowarn_undefined_behaviour_callbacks</code></li><li><code·class="inline">nowarn_ill_defined_behaviour_callbacks</code></li><li><code·class="inline">nowarn_ill_defined_optional_callbacks</code></li></ul><p>Own·Id:·OTP-19334·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/8985"·title="">GH-8985</a>,·<a·href="https://github.com/erlang/otp/pull/9020"·title="">PR-9020</a></p></li><li><p>Some·BIFs·with·side-effects·are·optimized·in·<code·class="inline">try</code>/<code·class="inline">catch</code>·in·the·same·way·as·guard·BIFs·in·order·to·gain·performance.</p><p>The·following·BIFs·that·are·optimized·in·this·way:·<a·href="../../../../erts-16.0/doc/html/erlang.html#binary_to_atom/1"><code·class="inline">binary_to_atom/1</code></a>, | 171 | </span><span·class="gt">**·exception·error:·no·match·of·right·hand·side·value·ok</span></code></pre><p>Using·the·strict·generator·operator·to·mark·the·intention·that·all·list·elements·must·match·the·pattern·could·help·finding·mistakes·quicker·if·something·unpexected·is·added·to·the·list·processed·by·the·generator.</p><p>The·strict·version·for·bitstring·generators·is·<code·class="inline"><:=</code>.</p><p>Own·Id:·OTP-19317·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8625"·title="">PR-8625</a></p></li><li><p>New·options·for·suppressing·behaviour·warnings·have·been·added:</p><ul><li><code·class="inline">nowarn_conflicting_behaviours</code></li><li><code·class="inline">nowarn_undefined_behaviour_func</code></li><li><code·class="inline">nowarn_undefined_behaviour</code></li><li><code·class="inline">nowarn_undefined_behaviour_callbacks</code></li><li><code·class="inline">nowarn_ill_defined_behaviour_callbacks</code></li><li><code·class="inline">nowarn_ill_defined_optional_callbacks</code></li></ul><p>Own·Id:·OTP-19334·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/8985"·title="">GH-8985</a>,·<a·href="https://github.com/erlang/otp/pull/9020"·title="">PR-9020</a></p></li><li><p>Some·BIFs·with·side-effects·are·optimized·in·<code·class="inline">try</code>/<code·class="inline">catch</code>·in·the·same·way·as·guard·BIFs·in·order·to·gain·performance.</p><p>The·following·BIFs·that·are·optimized·in·this·way:·<a·href="../../../../erts-16.0/doc/html/erlang.html#binary_to_atom/1"><code·class="inline">binary_to_atom/1</code></a>, |
| 172 | <a·href="../../../../erts-16.0/doc/html/erlang.html#binary_to_atom/2"><code·class="inline">binary_to_atom/2</code></a>,·<a·href="../../../../erts-16.0/doc/html/erlang.html#binary_to_existing_atom/1"><code·class="inline">binary_to_existing_atom/1</code></a>,·<a·href="../../../../erts-16.0/doc/html/erlang.html#list_to_atom/1"><code·class="inline">list_to_atom/1</code></a>,·and | 172 | <a·href="../../../../erts-16.0/doc/html/erlang.html#binary_to_atom/2"><code·class="inline">binary_to_atom/2</code></a>,·<a·href="../../../../erts-16.0/doc/html/erlang.html#binary_to_existing_atom/1"><code·class="inline">binary_to_existing_atom/1</code></a>,·<a·href="../../../../erts-16.0/doc/html/erlang.html#list_to_atom/1"><code·class="inline">list_to_atom/1</code></a>,·and |
| 173 | <a·href="../../../../erts-16.0/doc/html/erlang.html#list_to_existing_atom/1"><code·class="inline">list_to_existing_atom/1</code></a>.</p><p>Own·Id:·OTP-19339·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9042"·title="">PR-9042</a>,·<a·href="https://github.com/erlang/otp/pull/9122"·title="">PR-9122</a></p></li><li><p>The·compiler·now·converts·known·documentation·attribute·metadata·entries·from·<a·href="../../../../lib/stdlib-7.0/doc/html/unicode.html#t:chardata/0"><code·class="inline">unicode:chardata/0</code></a>·to·<a·href="../../../../lib/stdlib-7.0/doc/html/unicode.html#t:unicode_binary/0"><code·class="inline">unicode:unicode_binary/0</code></a>.</p><p>Own·Id:·OTP-19394·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9192"·title="">PR-9192</a></p></li><li><p>The·<code·class="inline">warn_deprecated_catch</code>·option·enables·warnings·for·use·of·old-style·catch·expressions·on·the·form·<code·class="inline">catch·Expr</code>·instead·of·the·modern·<code·class="inline">try·...·catch·...·end</code>.·To·prevent·new·uses·of·uses·of·old·catches·to·be·added,·this·compiler·option·can·be·enabled·on·the·project·level·and·<code·class="inline">-compile(nowarn_deprecated_catch).</code>·added·to·individual·files·that·still·contain·old·catches.</p><p>Own·Id:·OTP-19425·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9154"·title="">PR-9154</a></p></li><li><p>Defining·a·fun·in·terms·of·an·imported·function·is·not·allowed.·Before·this·release,·the·compiler·would·not·catch·this·kind·of·error·if·the·name·of·the·imported·function·happened·to·be·a·BIF.··Consider·this·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="5 | 173 | <a·href="../../../../erts-16.0/doc/html/erlang.html#list_to_existing_atom/1"><code·class="inline">list_to_existing_atom/1</code></a>.</p><p>Own·Id:·OTP-19339·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9042"·title="">PR-9042</a>,·<a·href="https://github.com/erlang/otp/pull/9122"·title="">PR-9122</a></p></li><li><p>The·compiler·now·converts·known·documentation·attribute·metadata·entries·from·<a·href="../../../../lib/stdlib-7.0/doc/html/unicode.html#t:chardata/0"><code·class="inline">unicode:chardata/0</code></a>·to·<a·href="../../../../lib/stdlib-7.0/doc/html/unicode.html#t:unicode_binary/0"><code·class="inline">unicode:unicode_binary/0</code></a>.</p><p>Own·Id:·OTP-19394·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9192"·title="">PR-9192</a></p></li><li><p>The·<code·class="inline">warn_deprecated_catch</code>·option·enables·warnings·for·use·of·old-style·catch·expressions·on·the·form·<code·class="inline">catch·Expr</code>·instead·of·the·modern·<code·class="inline">try·...·catch·...·end</code>.·To·prevent·new·uses·of·uses·of·old·catches·to·be·added,·this·compiler·option·can·be·enabled·on·the·project·level·and·<code·class="inline">-compile(nowarn_deprecated_catch).</code>·added·to·individual·files·that·still·contain·old·catches.</p><p>Own·Id:·OTP-19425·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9154"·title="">PR-9154</a></p></li><li><p>Defining·a·fun·in·terms·of·an·imported·function·is·not·allowed.·Before·this·release,·the·compiler·would·not·catch·this·kind·of·error·if·the·name·of·the·imported·function·happened·to·be·a·BIF.··Consider·this·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="5072594470-1">(</span><span·class="ss">fun_example</span><span·class="p"·data-group-id="5072594470-1">)</span><span·class="p">.</span><span·class="w"> |
| 174 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="5 | 174 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="5072594470-2">(</span><span·class="p"·data-group-id="5072594470-3">[</span><span·class="ss">foo</span><span·class="p">/</span><span·class="mi">0</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">bar</span><span·class="p">/</span><span·c[·...·truncated·by·diffoscope;·len:·112,·SHA:·b15fa44cefeb71a07e438cef3234eefb928b4ce1295062b02a76c20a2bc862e8·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 175 | </span><span·class="p">-</span><span·class="na">import</span><span·class="p"·data-group-id="5 | 175 | </span><span·class="p">-</span><span·class="na">import</span><span·class="p"·data-group-id="5072594470-4">(</span><span·class="ss">m</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="5072594470-5">[</span><span·class="ss">max</span><span·class="p">/</span><span·class="mi">2</span><span·class="p">,</span><span·cla[·...·truncated·by·diffoscope;·len:·191,·SHA:·d1dfc0eb8ba381188d9124c03bb5de6efaff54a092f56af64ad14e30138643b3·...·]-4">)</span><span·class="p">.</span><span·class="w"> |
| 176 | </span><span·class="nf">foo</span><span·class="p"·data-group-id="5 | 176 | </span><span·class="nf">foo</span><span·class="p"·data-group-id="5072594470-6">(</span><span·class="p"·data-group-id="5072594470-6">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 177 | ····</span><span·class="k">fun</span><span·class="w">·</span><span·class="ss">max</span><span·class="p">/</span><span·class="mi">2</span><span·class="p">.</span><span·class="w"> | 177 | ····</span><span·class="k">fun</span><span·class="w">·</span><span·class="ss">max</span><span·class="p">/</span><span·class="mi">2</span><span·class="p">.</span><span·class="w"> |
| 178 | </span><span·class="nf">bar</span><span·class="p"·data-group-id="5 | 178 | </span><span·class="nf">bar</span><span·class="p"·data-group-id="5072594470-7">(</span><span·class="p"·data-group-id="5072594470-7">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 179 | ····</span><span·class="k">fun</span><span·class="w">·</span><span·class="ss">not_a_bif</span><span·class="p">/</span><span·class="mi">0</span><span·class="p">.</span></code></pre><p>The·compiler·in·Erlang/OTP·27·would·generate·the·following·messages:</p><pre><code·class="text">fun_example.erl:9:5:·function·not_a_bif/0·undefined | 179 | ····</span><span·class="k">fun</span><span·class="w">·</span><span·class="ss">not_a_bif</span><span·class="p">/</span><span·class="mi">0</span><span·class="p">.</span></code></pre><p>The·compiler·in·Erlang/OTP·27·would·generate·the·following·messages:</p><pre><code·class="text">fun_example.erl:9:5:·function·not_a_bif/0·undefined |
| 180 | %····9|·····fun·not_a_bif/0. | 180 | %····9|·····fun·not_a_bif/0. |
| 181 | %·····|·····^ | 181 | %·····|·····^ |
| 182 | fun_example.erl:3:2:·Warning:·import·directive·overrides·auto-imported·BIF·max/2·-- | 182 | fun_example.erl:3:2:·Warning:·import·directive·overrides·auto-imported·BIF·max/2·-- |
| 183 | use·"-compile({no_auto_import,[max/2]})."·to·resolve·name·clash | 183 | use·"-compile({no_auto_import,[max/2]})."·to·resolve·name·clash |
| 184 | %····3|·-import(m,·[max/2,·not_a_bif/0]). | 184 | %····3|·-import(m,·[max/2,·not_a_bif/0]). |
| Offset 195, 21 lines modified | Offset 195, 21 lines modified | ||
| 195 | fun_example.erl:9:5:·creating·a·fun·from·imported·name·not_a_bif/0·is·not·allowed | 195 | fun_example.erl:9:5:·creating·a·fun·from·imported·name·not_a_bif/0·is·not·allowed |
| 196 | %····9|·····fun·not_a_bif/0. | 196 | %····9|·····fun·not_a_bif/0. |
| 197 | %·····|·····^ | 197 | %·····|·····^ |
| 198 | fun_example.erl:3:2:·Warning:·import·directive·overrides·auto-imported·BIF·max/2·-- | 198 | fun_example.erl:3:2:·Warning:·import·directive·overrides·auto-imported·BIF·max/2·-- |
| 199 | use·"-compile({no_auto_import,[max/2]})."·to·resolve·name·clash | 199 | use·"-compile({no_auto_import,[max/2]})."·to·resolve·name·clash |
| 200 | %····3|·-import(m,·[max/2,·not_a_bif/0]). | 200 | %····3|·-import(m,·[max/2,·not_a_bif/0]). |
| 201 | %·····|··^</code></pre><p>Also,·attempting·to·call·a·local·function·having·the·same·name·as·auto-imported·BIF·would·result·in·an·error·if·the·BIF·was·added·to·Erlang/OTP·before·R14,·and·a·warning·for·newer·BIFs.·This·has·been·changed·to·always·emit·a·warning.·For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 201 | %·····|··^</code></pre><p>Also,·attempting·to·call·a·local·function·having·the·same·name·as·auto-imported·BIF·would·result·in·an·error·if·the·BIF·was·added·to·Erlang/OTP·before·R14,·and·a·warning·for·newer·BIFs.·This·has·been·changed·to·always·emit·a·warning.·For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="9418271274-1">(</span><span·class="ss">bif_example</span><span·class="p"·data-group-id="9418271274-1">)</span><span·class="p">.</span><span·class="w"> |
| 202 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 202 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="9418271274-2">(</span><span·class="p"·data-group-id="9418271274-3">[</span><span·class="ss">bar</span><span·class="p">/</span><span·class="mi">1</span><span·class="p"·data-group-id="9418271274-3">]</span><span·class="p"·data-group-id="9418271274-2">)</span><span·class="p">.</span><span·class="w"> |
| 203 | </span><span·class="nf">bar</span><span·class="p"·data-group-id=" | 203 | </span><span·class="nf">bar</span><span·class="p"·data-group-id="9418271274-4">(</span><span·class="n">B</span><span·class="p"·data-group-id="9418271274-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 204 | ····</span><span·class="nf">is_boolean</span><span·class="p"·data-group-id=" | 204 | ····</span><span·class="nf">is_boolean</span><span·class="p"·data-group-id="9418271274-5">(</span><span·class="n">B</span><span·class="p"·data-group-id="9418271274-5">)</span><span·class="p">.</span><span·class="w"> |
| 205 | </span><span·class="nf">is_boolean</span><span·class="p"·data-group-id=" | 205 | </span><span·class="nf">is_boolean</span><span·class="p"·data-group-id="9418271274-6">(</span><span·class="n">B</span><span·class="p"·data-group-id="9418271274-6">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 206 | ········</span><span·class="n">B</span><span·class="w">·</span><span·class="o">=:=</span><span·class="w">·</span><span·class="ss">true</span><span·class="w">·</span><span·class="ow">orelse</span><span·class="w">·</span><span·class="n">B</span><span·class="w">·</span><span·class="o">=:=</span><span·class="w">·</span><span·class="ss">false</span><span·class="p">.</span></code></pre><p>will·now·result·in·the·following·warning·instead·of·an·error:</p><pre><code·class="text">if_example.erl:5:5:·Warning:·ambiguous·call·of·overridden·auto-imported·BIF·is_boolean/1·-- | 206 | ········</span><span·class="n">B</span><span·class="w">·</span><span·class="o">=:=</span><span·class="w">·</span><span·class="ss">true</span><span·class="w">·</span><span·class="ow">orelse</span><span·class="w">·</span><span·class="n">B</span><span·class="w">·</span><span·class="o">=:=</span><span·class="w">·</span><span·class="ss">false</span><span·class="p">.</span></code></pre><p>will·now·result·in·the·following·warning·instead·of·an·error:</p><pre><code·class="text">if_example.erl:5:5:·Warning:·ambiguous·call·of·overridden·auto-imported·BIF·is_boolean/1·-- |
| 207 | use·erlang:is_boolean/1·or·"-compile({no_auto_import,[is_boolean/1]})."·to·resolve·name·clash | 207 | use·erlang:is_boolean/1·or·"-compile({no_auto_import,[is_boolean/1]})."·to·resolve·name·clash |
| 208 | %····5|·····is_boolean(B). | 208 | %····5|·····is_boolean(B). |
| 209 | %·····|·····^</code></pre><p>Own·Id:·OTP-19432·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9246"·title="">PR-9246</a></p></li><li><p>The·compiler’s·alias·analysis·pass·is·now·both·faster·and·less·conservative,·allowing·optimizations·of·records·and·binary·construction·to·be·applied·in·more·cases.</p><p>Own·Id:·OTP-19502·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8695"·title="">PR-8695</a></p></li><li><p>BEAM·files·no·longer·include·a·<code·class="inline">Meta</code>·chunk·if·there·are·no·features·used.·That·slightly·decreases·the·size·of·BEAM·files,·and·it·also·ensures·that·<code·class="inline">m(Module)</code>·and·<code·class="inline">beam_lib:md5(Beam)</code>·will·match·for·preloaded·modules.</p><p>Own·Id:·OTP-19524·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9517"·title="">PR-9517</a></p></li><li><p>The·license·and·copyright·header·has·changed·format·to·include·an·<code·class="inline">SPDX-License-Identifier</code>.·At·the·same·time,·most·files·have·been·updated·to·follow·a·uniform·standard·for·license·headers.</p><p>Own·Id:·OTP-19575·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9670"·title="">PR-9670</a></p></li><li><p>An··<strong>experimental</strong>·API·for·a·native·debugger·has·been·added.·The·main·components·are·the·following:</p><ul><li><p>A·new·compiler·option·<code·class="inline">beam_debug_info</code>·for·the·Erlang·compiler.·When·given,·most·optimizations·are·disabled·and·debug·information·suitable·for·the·native·debugger·are·added·to·generated·BEAM·files.</p></li><li><p>A·new·<code·class="inline">+D</code>·emulator·flag.·When·given,·the·VM·becomes·"debuggable",·which·means·that·when·modules·that·been·compiled·with·the·<code·class="inline">beam_debug_info</code>·option·are·loaded,·the·code·is·instrumented·so·that·one·can·enable·and·disable·breakpoints·on·executable·lines.</p></li><li><p>An·experimental·<code·class="inline">erl_debugger</code>·module·with·a·new·debugging·API.·Essentially,·it·allows·a·single,·local,·process·to·be·registered·as·the·"debugger"·process·for·the·node.·This·process·is·the·one·that·will·receive·messages·notifying·that·a·process·hit·a·breakpoint.·This·way,·the·front-end·implementation·of·a·debugger·(such·as·<a·href="https://github.com/WhatsApp/edb">edb·from·WhatApp</a>)·can·be·decoupled·from·OTP.</p></li><li><p>The·<code·class="inline">erl_debugger</code>·module·also·exposes·new·BIFs·to·inspect·<code·class="inline">X</code>·and·<code·class="inline">Y</code>·registers·of·a·suspended·process.·Together·with·new·code-information·BIFs,·this·let's·a·debugger·show·the·values·of·variables·in·scope·for·a·suspended·process.</p></li></ul><p>Own·Id:·OTP-19609·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8670"·title="">PR-8670</a>,·<a·href="https://github.com/erlang/otp/pull/9334"·title="">PR-9334</a>,·<a·href="https://github.com/erlang/otp/pull/9604"·title="">PR-9604</a></p></li></ul><h2·id="compiler-8-6-1"·class="section-heading"> | 209 | %·····|·····^</code></pre><p>Own·Id:·OTP-19432·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9246"·title="">PR-9246</a></p></li><li><p>The·compiler’s·alias·analysis·pass·is·now·both·faster·and·less·conservative,·allowing·optimizations·of·records·and·binary·construction·to·be·applied·in·more·cases.</p><p>Own·Id:·OTP-19502·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8695"·title="">PR-8695</a></p></li><li><p>BEAM·files·no·longer·include·a·<code·class="inline">Meta</code>·chunk·if·there·are·no·features·used.·That·slightly·decreases·the·size·of·BEAM·files,·and·it·also·ensures·that·<code·class="inline">m(Module)</code>·and·<code·class="inline">beam_lib:md5(Beam)</code>·will·match·for·preloaded·modules.</p><p>Own·Id:·OTP-19524·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9517"·title="">PR-9517</a></p></li><li><p>The·license·and·copyright·header·has·changed·format·to·include·an·<code·class="inline">SPDX-License-Identifier</code>.·At·the·same·time,·most·files·have·been·updated·to·follow·a·uniform·standard·for·license·headers.</p><p>Own·Id:·OTP-19575·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9670"·title="">PR-9670</a></p></li><li><p>An··<strong>experimental</strong>·API·for·a·native·debugger·has·been·added.·The·main·components·are·the·following:</p><ul><li><p>A·new·compiler·option·<code·class="inline">beam_debug_info</code>·for·the·Erlang·compiler.·When·given,·most·optimizations·are·disabled·and·debug·information·suitable·for·the·native·debugger·are·added·to·generated·BEAM·files.</p></li><li><p>A·new·<code·class="inline">+D</code>·emulator·flag.·When·given,·the·VM·becomes·"debuggable",·which·means·that·when·modules·that·been·compiled·with·the·<code·class="inline">beam_debug_info</code>·option·are·loaded,·the·code·is·instrumented·so·that·one·can·enable·and·disable·breakpoints·on·executable·lines.</p></li><li><p>An·experimental·<code·class="inline">erl_debugger</code>·module·with·a·new·debugging·API.·Essentially,·it·allows·a·single,·local,·process·to·be·registered·as·the·"debugger"·process·for·the·node.·This·process·is·the·one·that·will·receive·messages·notifying·that·a·process·hit·a·breakpoint.·This·way,·the·front-end·implementation·of·a·debugger·(such·as·<a·href="https://github.com/WhatsApp/edb">edb·from·WhatApp</a>)·can·be·decoupled·from·OTP.</p></li><li><p>The·<code·class="inline">erl_debugger</code>·module·also·exposes·new·BIFs·to·inspect·<code·class="inline">X</code>·and·<code·class="inline">Y</code>·registers·of·a·suspended·process.·Together·with·new·code-information·BIFs,·this·let's·a·debugger·show·the·values·of·variables·in·scope·for·a·suspended·process.</p></li></ul><p>Own·Id:·OTP-19609·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8670"·title="">PR-8670</a>,·<a·href="https://github.com/erlang/otp/pull/9334"·title="">PR-9334</a>,·<a·href="https://github.com/erlang/otp/pull/9604"·title="">PR-9604</a></p></li></ul><h2·id="compiler-8-6-1"·class="section-heading"> |
| 210 | ··<a·href="#compiler-8-6-1"·class="hover-link"> | 210 | ··<a·href="#compiler-8-6-1"·class="hover-link"> |
| 211 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 211 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 212 | ··</a> | 212 | ··</a> |
| Offset 253, 18 lines modified | Offset 253, 18 lines modified | ||
| 253 | </h2> | 253 | </h2> |
| 254 | <h3·id="fixed-bugs-and-malfunctions-3"·class="section-heading"> | 254 | <h3·id="fixed-bugs-and-malfunctions-3"·class="section-heading"> |
| 255 | ··<a·href="#fixed-bugs-and-malfunctions-3"·class="hover-link"> | 255 | ··<a·href="#fixed-bugs-and-malfunctions-3"·class="hover-link"> |
| 256 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 256 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 257 | ··</a> | 257 | ··</a> |
| 258 | ··<span·class="text">Fixed·Bugs·and·Malfunctions</span> | 258 | ··<span·class="text">Fixed·Bugs·and·Malfunctions</span> |
| 259 | </h3> | 259 | </h3> |
| 260 | <ul><li><p>Fixed·a·crash·in·the·common·sub-expression·elimination·pass.</p><p>Own·Id:·OTP-19243·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/8818"·title="">GH-8818</a>,·<a·href="https://github.com/erlang/otp/pull/8838"·title="">PR-8838</a></p></li><li><p>Fixed·a·bug·where·bogus·code·was·generated·for·consecutive·calls·to·<code·class="inline">erlang:setelement/2</code>,·potentially·crashing·the·runtime·system.</p><p>Own·Id:·OTP-19270·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/8783"·title="">GH-8783</a>,·<a·href="https://github.com/erlang/otp/pull/8898"·title="">PR-8898</a></p></li><li><p>When·the·<code·class="inline">line_coverage</code>·option·was·used,·exceptions·could·show·the·wrong·line·for·where·the·exception·was·raised.</p><p>Own·Id:·OTP-19282·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8907"·title="">PR-8907</a></p></li><li><p>The·<code·class="inline">line_coverage</code>·option·would·be·ignored·if·given·in·a·<code·class="inline">compile()</code>·attribute·within·a·module.</p><p>Own·Id:·OTP-19309·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/8942"·title="">GH-8942</a>,·<a·href="https://github.com/erlang/otp/pull/8970"·title="">PR-8970</a></p></li><li><p>A·segment·matching·a·float·in·a·binary·generator·will·now·skip·any·invalid·float·(such·as·a·NaN)·and·continue·matching·the·rest·of·the·binary.·Before·this·correction,·the·comprehension·would·stop·as·soon·as·an·invalid·float·was·encountered.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">BadFloat</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 260 | <ul><li><p>Fixed·a·crash·in·the·common·sub-expression·elimination·pass.</p><p>Own·Id:·OTP-19243·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/8818"·title="">GH-8818</a>,·<a·href="https://github.com/erlang/otp/pull/8838"·title="">PR-8838</a></p></li><li><p>Fixed·a·bug·where·bogus·code·was·generated·for·consecutive·calls·to·<code·class="inline">erlang:setelement/2</code>,·potentially·crashing·the·runtime·system.</p><p>Own·Id:·OTP-19270·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/8783"·title="">GH-8783</a>,·<a·href="https://github.com/erlang/otp/pull/8898"·title="">PR-8898</a></p></li><li><p>When·the·<code·class="inline">line_coverage</code>·option·was·used,·exceptions·could·show·the·wrong·line·for·where·the·exception·was·raised.</p><p>Own·Id:·OTP-19282·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8907"·title="">PR-8907</a></p></li><li><p>The·<code·class="inline">line_coverage</code>·option·would·be·ignored·if·given·in·a·<code·class="inline">compile()</code>·attribute·within·a·module.</p><p>Own·Id:·OTP-19309·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/8942"·title="">GH-8942</a>,·<a·href="https://github.com/erlang/otp/pull/8970"·title="">PR-8970</a></p></li><li><p>A·segment·matching·a·float·in·a·binary·generator·will·now·skip·any·invalid·float·(such·as·a·NaN)·and·continue·matching·the·rest·of·the·binary.·Before·this·correction,·the·comprehension·would·stop·as·soon·as·an·invalid·float·was·encountered.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">BadFloat</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="5394593791-1"><<</span><span·class="o">-</span><span·class="mi">1</span><span·class="p">:</span><span·class="mi">64</span><span·class="p"·data-group-id="5394593791-1">>></span><span·class="p">.</span><span·class="w"> |
| 261 | </span><span·class="p"·data-group-id="7642538856-2"><<</span><span·class="s">"ÿÿÿÿÿÿÿÿ"</span><span·class="p"·data-group-id="7642538856-2">>></span><span·class="gp·unselectable"> | ||
| 262 | 261 | </span><span·class="p"·data-group-id="5394593791-2"><<</span><span·class="s">"ÿÿÿÿÿÿÿÿ"</span><span·class="p"·data-group-id="5394593791-2">>></span><span·class="gp·unselectable"> | |
| 262 | 2>·</span><span·class="p"·data-group-id="5394593791-3">[</span><span·class="n">X</span><span·class="w">·</span><span·class="p">||</span><span·class="w">·</span><span·class="p"·data-group-id="5394593791-4"><<</span><span·class="n">X</span><span·class="p">:</span><span·class="mi">64</span><span·class="o">/</span><span·class="nb">float</span><span·class="p"·data-group-id="5394593791-4">>></span><span·class="w">·</span><span·class="o"><=</span><span·class="w">·</span><span·class="p"·data-group-id="5394593791-5"><<</span><span·class="mf">0.0</span><span·class="o">/</span><span·class="nb">float</span><span·class="p">,</span><span·class="n">BadFloat</span><span·class="o">/</span><span·class="ss">binary</span><span·class="p">,</span><span·class="mf">42.0</span><span·class="o">/</span><span·class="nb">float</span><span·class="p"·data-group-id="5394593791-5">>></span><span·class="p"·data-group-id="5394593791-3">]</span><span·class="p">.</span><span·class="w"> | ||
| 263 | </span><span·class="p"·data-group-id=" | 263 | </span><span·class="p"·data-group-id="5394593791-6">[</span><span·class="mf">0.0</span><span·class="p">,</span><span·class="mf">42.0</span><span·class="p"·data-group-id="5394593791-6">]</span></code></pre><p>Own·Id:·OTP-19331·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8978"·title="">PR-8978</a></p></li></ul><h2·id="compiler-8-5-3"·class="section-heading"> |
| 264 | ··<a·href="#compiler-8-5-3"·class="hover-link"> | 264 | ··<a·href="#compiler-8-5-3"·class="hover-link"> |
| 265 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 265 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 266 | ··</a> | 266 | ··</a> |
| 267 | ··<span·class="text">Compiler·8.5.3</span> | 267 | ··<span·class="text">Compiler·8.5.3</span> |
| 268 | </h2> | 268 | </h2> |
| 269 | <h3·id="fixed-bugs-and-malfunctions-4"·class="section-heading"> | 269 | <h3·id="fixed-bugs-and-malfunctions-4"·class="section-heading"> |
| 270 | ··<a·href="#fixed-bugs-and-malfunctions-4"·class="hover-link"> | 270 | ··<a·href="#fixed-bugs-and-malfunctions-4"·class="hover-link"> |
| Offset 304, 61 lines modified | Offset 304, 61 lines modified | ||
| 304 | </h2> | 304 | </h2> |
| 305 | <h3·id="fixed-bugs-and-malfunctions-7"·class="section-heading"> | 305 | <h3·id="fixed-bugs-and-malfunctions-7"·class="section-heading"> |
| 306 | ··<a·href="#fixed-bugs-and-malfunctions-7"·class="hover-link"> | 306 | ··<a·href="#fixed-bugs-and-malfunctions-7"·class="hover-link"> |
| 307 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 307 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 308 | ··</a> | 308 | ··</a> |
| 309 | ··<span·class="text">Fixed·Bugs·and·Malfunctions</span> | 309 | ··<span·class="text">Fixed·Bugs·and·Malfunctions</span> |
| 310 | </h3> | 310 | </h3> |
| 311 | <ul><li><p>Generators·for·binary·comprehensions·could·be·evaluated·before·it·was·known·that·they·would·be·needed.·That·could·result·in·a·binary·comprehensions·failing·if·a·generator·that·should·not·be·evaluated·until·later·failed.</p><p>As·an·example,·consider·this·module:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="3 | 311 | <ul><li><p>Generators·for·binary·comprehensions·could·be·evaluated·before·it·was·known·that·they·would·be·needed.·That·could·result·in·a·binary·comprehensions·failing·if·a·generator·that·should·not·be·evaluated·until·later·failed.</p><p>As·an·example,·consider·this·module:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="3347707629-1">(</span><span·class="ss">t</span><span·class="p"·data-group-id="3347707629-1">)</span><span·class="p">.</span><span·class="w"> |
| 312 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="3 | 312 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="3347707629-2">(</span><span·class="p"·data-group-id="3347707629-3">[</span><span·class="ss">f</span><span·class="p">/</span><span·class="mi">0</span><span·class="p"·data-group-id="3347707629-3">]</span><span·class="p"·data-group-id="3347707629-2">)</span><span·class="p">.</span><span·class="w"> |
| 313 | </span><span·class="nf">f</span><span·class="p"·data-group-id="3 | 313 | </span><span·class="nf">f</span><span·class="p"·data-group-id="3347707629-4">(</span><span·class="p"·data-group-id="3347707629-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 314 | ····</span><span·class="p"·data-group-id="3 | 314 | ····</span><span·class="p"·data-group-id="3347707629-5"><<</span><span·class="mi">0</span><span·class="w">·</span><span·class="p">||</span><span·class="w">·</span><span·class="p">_</span><span·class="w">·</span><span·class="o"><-</span><span·class="w">·</span><span·class="p"·data-group-id=[·...·truncated·by·diffoscope;·len:·729,·SHA:·c679053dd9bef8cb3fbd322b7ec466319089f201475b76073d0befc9e96f13c1·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 315 | </span><span·class="gt">**·exception·error:·bad·generator·ok | 315 | </span><span·class="gt">**·exception·error:·bad·generator·ok |
| 316 | ·····in·function··t:f/0·(t.erl,·line·6)</span></code></pre><p>In·Erlang/OTP·27·it·returns·an·empty·binary:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">t</span><span·class="p">:</span><span·class="nf">f</span><span·class="p"·data-group-id=" | 316 | ·····in·function··t:f/0·(t.erl,·line·6)</span></code></pre><p>In·Erlang/OTP·27·it·returns·an·empty·binary:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">t</span><span·class="p">:</span><span·class="nf">f</span><span·class="p"·data-group-id="3225982060-1">(</span><span·class="p"·data-group-id="3225982060-1">)</span><span·class="p">.</span><span·class="w"> |
| 317 | </span><span·class="p"·data-group-id=" | 317 | </span><span·class="p"·data-group-id="3225982060-2"><<</span><span·class="p"·data-group-id="3225982060-2">>></span></code></pre><p>Own·Id:·OTP-18703·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/7494"·title="">GH-7494</a>,·<a·href="https://github.com/erlang/otp/pull/7538"·title="">PR-7538</a></p></li><li><p>The·documentation·for·the·preprocessor·now·mentions·that·<code·class="inline">defined(Name)</code>·can·be·called·in·the·condition·for·an·<code·class="inline">-if</code>·or·<code·class="inline">-elif</code>·directive·to·test·whether·<code·class="inline">Name</code>·is·the·name·of·a·defined·macro.·(This·feature·was·implemented·in·OTP·21.)</p><p>If·a·function·call·in·an·<code·class="inline">-if</code>·or·<code·class="inline">-elif</code>·with·a·name·that·is·not·the·name·of·a·guard·BIF,·there·would·not·be·a·compilation·error,·but·would·instead·cause·the·lines·following·the·directive·to·be·skipped.·This·has·now·been·changed·to·be·a·compilation·error.</p><p><strong><em>·POTENTIAL·INCOMPATIBILITY·</em></strong></p><p>Own·Id:·OTP-18784·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/7706"·title="">GH-7706</a>,·<a·href="https://github.com/erlang/otp/pull/7726"·title="">PR-7726</a></p></li></ul><h3·id="improvements-and-new-features-2"·class="section-heading"> |
| 318 | ··<a·href="#improvements-and-new-features-2"·class="hover-link"> | 318 | ··<a·href="#improvements-and-new-features-2"·class="hover-link"> |
| 319 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 319 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 320 | ··</a> | 320 | ··</a> |
| 321 | ··<span·class="text">Improvements·and·New·Features</span> | 321 | ··<span·class="text">Improvements·and·New·Features</span> |
| 322 | </h3> | 322 | </h3> |
| 323 | <ul><li><p>The·compiler·now·emits·nicer·error·message·for·function·head·mismatches. | 323 | <ul><li><p>The·compiler·now·emits·nicer·error·message·for·function·head·mismatches. |
| 324 | For·example,·given:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">a</span><span·class="p"·data-group-id=" | 324 | For·example,·given:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">a</span><span·class="p"·data-group-id="6803260781-1">(</span><span·class="p"·data-group-id="6803260781-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">ok</span><span·class="p">;</span><span·class="w"> |
| 325 | </span><span·class="nf">a</span><span·class="p"·data-group-id=" | 325 | </span><span·class="nf">a</span><span·class="p"·data-group-id="6803260781-2">(</span><span·class="p">_</span><span·class="p"·data-group-id="6803260781-2">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">error</span><span·class="p">.</span></code></pre><p>Erlang/OTP·26·and·earlier·would·emit·a·diagnostic·similar·to:</p><pre><code·class="text">t.erl:6:1:·head·mismatch |
| 326 | %····6|·a(_)·->·error. | 326 | %····6|·a(_)·->·error. |
| 327 | %·····|·^</code></pre><p>while·in·Erlang/OTP·27·the·diagnostic·is·similar·to:</p><pre><code·class="text">t.erl:6:1:·head·mismatch:·function·a·with·arities·0·and·1·is·regarded·as·two·distinct·functions.·Is·the·number·of·arguments·incorrect·or·is·the·semicolon·in·a/0·unwanted? | 327 | %·····|·^</code></pre><p>while·in·Erlang/OTP·27·the·diagnostic·is·similar·to:</p><pre><code·class="text">t.erl:6:1:·head·mismatch:·function·a·with·arities·0·and·1·is·regarded·as·two·distinct·functions.·Is·the·number·of·arguments·incorrect·or·is·the·semicolon·in·a/0·unwanted? |
| 328 | %····6|·a(_)·->·error. | 328 | %····6|·a(_)·->·error. |
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| 141 | ······<p·class="built-using"> | 141 | ······<p·class="built-using"> |
| 142 | ········Built·using | 142 | ········Built·using |
| 143 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 143 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 144 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 144 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 145 | ······</p> | 145 | ······</p> |
| 146 | <p>Copyright·©·1996-202 | 146 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 147 | ····</footer> | 147 | ····</footer> |
| 148 | ··</div> | 148 | ··</div> |
| 149 | </main> | 149 | </main> |
| 150 | </div> | 150 | </div> |
| 151 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 151 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 152 | ··<script> | 152 | ··<script> |
| 153 | ··let·initialized·=·false; | 153 | ··let·initialized·=·false; |
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| 138 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 138 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 139 | ··</a> | 139 | ··</a> |
| 140 | ··<span·class="text">Syntax</span> | 140 | ··<span·class="text">Syntax</span> |
| 141 | </h2> | 141 | </h2> |
| 142 | <p>SSA·checks·are·embedded·in·the·source·code·as·comments·starting·with | 142 | <p>SSA·checks·are·embedded·in·the·source·code·as·comments·starting·with |
| 143 | with·one·of·<code·class="inline">%ssa%</code>,·<code·class="inline">%%ssa%</code>·or·<code·class="inline">%%%ssa%</code>.·This·is·a·short | 143 | with·one·of·<code·class="inline">%ssa%</code>,·<code·class="inline">%%ssa%</code>·or·<code·class="inline">%%%ssa%</code>.·This·is·a·short |
| 144 | introduction·the·syntax,·for·the·full·syntax·please·refer·to·the | 144 | introduction·the·syntax,·for·the·full·syntax·please·refer·to·the |
| 145 | <code·class="inline">ssa_check_when_clause</code>·production·in·<code·class="inline">erl_parse.yrl</code>.</p><p>SSA·checks·can·be·placed·inside·any·Erlang·function,·for·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">t0</span><span·class="p"·data-group-id=" | 145 | <code·class="inline">ssa_check_when_clause</code>·production·in·<code·class="inline">erl_parse.yrl</code>.</p><p>SSA·checks·can·be·placed·inside·any·Erlang·function,·for·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">t0</span><span·class="p"·data-group-id="2092204453-1">(</span><span·class="p"·data-group-id="2092204453-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 146 | </span><span·class="c1">%ssa%·()·when·post_ssa_opt·-></span><span·class="w"> | 146 | </span><span·class="c1">%ssa%·()·when·post_ssa_opt·-></span><span·class="w"> |
| 147 | </span><span·class="c1">%ssa%···ret(#{}).</span><span·class="w"> | 147 | </span><span·class="c1">%ssa%···ret(#{}).</span><span·class="w"> |
| 148 | ··</span><span·class="p"·data-group-id=" | 148 | ··</span><span·class="p"·data-group-id="2092204453-2">#{</span><span·class="p"·data-group-id="2092204453-2">}</span><span·class="p">.</span></code></pre><p>will·check·that·<code·class="inline">t0/0</code>·returns·the·literal·<code·class="inline">#{}</code>.·If·we·want·to·check |
| 149 | that·a·function·returns·its·first·formal·parameter,·we·can·write:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">t1</span><span·class="p"·data-group-id=" | 149 | that·a·function·returns·its·first·formal·parameter,·we·can·write:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">t1</span><span·class="p"·data-group-id="9593683673-1">(</span><span·class="n">A</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="n">B</span><span·class="p"·data-group-id="9593683673-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 150 | </span><span·class="c1">%ssa%·(X,·_)·when·post_ssa_opt·-></span><span·class="w"> | 150 | </span><span·class="c1">%ssa%·(X,·_)·when·post_ssa_opt·-></span><span·class="w"> |
| 151 | </span><span·class="c1">%ssa%···ret(X).</span><span·class="w"> | 151 | </span><span·class="c1">%ssa%···ret(X).</span><span·class="w"> |
| 152 | ··</span><span·class="n">A</span><span·class="p">.</span></code></pre><p>Note·how·we·match·the·first·formal·parameter·using·<code·class="inline">X</code>.·The·reason·for | 152 | ··</span><span·class="n">A</span><span·class="p">.</span></code></pre><p>Note·how·we·match·the·first·formal·parameter·using·<code·class="inline">X</code>.·The·reason·for |
| 153 | having·our·own·formal·parameters·for·the·SSA·check,·is·that·we·don't | 153 | having·our·own·formal·parameters·for·the·SSA·check,·is·that·we·don't |
| 154 | want·to·introduce·new·identifiers·at·the·Erlang·level·to·support | 154 | want·to·introduce·new·identifiers·at·the·Erlang·level·to·support |
| 155 | SSA-level·checks.·Consider·if·<code·class="inline">t1/2</code>·had·been·defined·as·<code·class="inline">t1([A|As],·B)</code>·we·would·have·had·to·introduce·a·new·identifier·for·the·aggregate | 155 | SSA-level·checks.·Consider·if·<code·class="inline">t1/2</code>·had·been·defined·as·<code·class="inline">t1([A|As],·B)</code>·we·would·have·had·to·introduce·a·new·identifier·for·the·aggregate |
| 156 | value·<code·class="inline">[A|As]</code>.</p><p>The·full·syntax·for·a·SSA·check·clause·is:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="o"><</span><span·class="ss">expected</span><span·class="o">-</span><span·class="ss">result</span><span·class="o">></span><span·class="o">?</span><span·class="w">·</span><span·class="p"·data-group-id=" | 156 | value·<code·class="inline">[A|As]</code>.</p><p>The·full·syntax·for·a·SSA·check·clause·is:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="o"><</span><span·class="ss">expected</span><span·class="o">-</span><span·class="ss">result</span><span·class="o">></span><span·class="o">?</span><span·class="w">·</span><span·class="p"·data-group-id="0199017701-1">(</span><span·class="o"><</span><span·class="ss">formals</span><span·class="o">></span><span·class="p"·data-group-id="0199017701-1">)</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><span·class="o"><</span><span·class="ss">pipeline</span><span·class="o">-</span><span·class="ss">location</span><span·class="o">></span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="o"><</span><span·class="ss">checks</span><span·class="o">></span><span·class="w">·</span><span·class="ss">'.'</span></code></pre><p>where·<code·class="inline"><expected-result></code>·can·be·one·of·<code·class="inline">pass</code>·(the·check·must |
| 157 | succeed),·<code·class="inline">fail</code>·and·<code·class="inline">xfail</code>·(the·check·must·fail).·Omitting | 157 | succeed),·<code·class="inline">fail</code>·and·<code·class="inline">xfail</code>·(the·check·must·fail).·Omitting |
| 158 | <code·class="inline"><expected-result></code>·is·parsed·as·an·implicit·<code·class="inline">pass</code>.</p><p><code·class="inline"><formals></code>·is·a·comma-separated·list·of·variables.</p><p><code·class="inline"><pipeline-location></code>·specifies·when·in·the·compiler·pipeline·to·run | 158 | <code·class="inline"><expected-result></code>·is·parsed·as·an·implicit·<code·class="inline">pass</code>.</p><p><code·class="inline"><formals></code>·is·a·comma-separated·list·of·variables.</p><p><code·class="inline"><pipeline-location></code>·specifies·when·in·the·compiler·pipeline·to·run |
| 159 | the·checks.·For·now·the·only·supported·value·for·<code·class="inline"><pipeline-location></code> | 159 | the·checks.·For·now·the·only·supported·value·for·<code·class="inline"><pipeline-location></code> |
| 160 | is·<code·class="inline">post_ssa_opt</code>·which·runs·the·checks·after·the·<code·class="inline">ssa_opt</code>·pass.</p><p><code·class="inline"><checks></code>·is·a·comma-separated·list·of·matches·against·the·BEAM·SSA | 160 | is·<code·class="inline">post_ssa_opt</code>·which·runs·the·checks·after·the·<code·class="inline">ssa_opt</code>·pass.</p><p><code·class="inline"><checks></code>·is·a·comma-separated·list·of·matches·against·the·BEAM·SSA |
| 161 | code.·For·non-flow-control·operations·the·syntax·is:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="o"><</span><span·class="ss">variable</span><span·class="o">></span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o"><</span><span·class="ss">operation</span><span·class="o">></span><span·class="w">·</span><span·class="p"·data-group-id=" | 161 | code.·For·non-flow-control·operations·the·syntax·is:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="o"><</span><span·class="ss">variable</span><span·class="o">></span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o"><</span><span·class="ss">operation</span><span·class="o">></span><span·class="w">·</span><span·class="p"·data-group-id="4502073226-1">(</span><span·class="w">·</span><span·class="o"><</span><span·class="ss">arguments</span><span·class="o">></span><span·class="w">·</span><span·class="p"·data-group-id="4502073226-1">)</span><span·class="w">·</span><span·class="o"><</span><span·class="ss">annotation</span><span·class="o">></span><span·class="o">?</span></code></pre><p>where·<code·class="inline"><operation></code>·is·the·<code·class="inline">#b_set.op</code>·field·from·the·internal·SSA |
| 162 | representation.·BIFs·are·written·as·<code·class="inline">bif:<atom></code>.</p><p><code·class="inline"><arguments></code>·is·a·comma-separated·list·of·variables·or·literals.</p><p>For·flow·control·operations·and·labels,·the·syntax·is·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">br</span><span·class="p"·data-group-id="13 | 162 | representation.·BIFs·are·written·as·<code·class="inline">bif:<atom></code>.</p><p><code·class="inline"><arguments></code>·is·a·comma-separated·list·of·variables·or·literals.</p><p>For·flow·control·operations·and·labels,·the·syntax·is·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">br</span><span·class="p"·data-group-id="1314099852-1">(</span><span·class="o"><</span><span·class="ss">bool</span><span·class="o">></span><span·class="p">,</span><span·class="w">·</span><span·class="o"><</span><span·class="ss">true</span><span·class="o">-</span><span·class="ss">label</spa[·...·truncated·by·diffoscope;·len:·254,·SHA:·c321d37d4976ec5b29b693badb4f5bbe74ae4c9767d9dc1eaa8db37379f3356e·...·]-1">)</span><span·class="w"> |
| 163 | </span><span·class="nf">switch</span><span·class="p"·data-group-id="13 | 163 | </span><span·class="nf">switch</span><span·class="p"·data-group-id="1314099852-2">(</span><span·class="o"><</span><span·class="ss">value</span><span·class="o">></span><span·class="p">,</span><span·class="w">·</span><span·class="o"><</span><span·class="ss">fail</span><span·class="o">-</span><span·class="ss">label</sp[·...·truncated·by·diffoscope;·len:·617,·SHA:·f7db52b61f952e0b156d59610db15a68503d1147c9efbd86da7e7762a95f214f·...·]-2">)</span><span·class="w"> |
| 164 | </span><span·class="nf">ret</span><span·class="p"·data-group-id="13 | 164 | </span><span·class="nf">ret</span><span·class="p"·data-group-id="1314099852-5">(</span><span·class="o"><</span><span·class="ss">value</span><span·class="o">></span><span·class="p"·data-group-id="1314099852-5">)</span><span·class="w"> |
| 165 | </span><span·class="ss">label</span><span·class="w">·</span><span·class="o"><</span><span·class="ss">value</span><span·class="o">></span></code></pre><p>where·<code·class="inline"><value></code>·is·a·literal·or·a·variable.</p><p>A·check·can·also·include·an·assertion·on·operation·annotations.·The | 165 | </span><span·class="ss">label</span><span·class="w">·</span><span·class="o"><</span><span·class="ss">value</span><span·class="o">></span></code></pre><p>where·<code·class="inline"><value></code>·is·a·literal·or·a·variable.</p><p>A·check·can·also·include·an·assertion·on·operation·annotations.·The |
| 166 | assertion·is·written·as·a·map-like·pattern·following·the·argument | 166 | assertion·is·written·as·a·map-like·pattern·following·the·argument |
| 167 | list,·for·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">t0</span><span·class="p"·data-group-id=" | 167 | list,·for·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">t0</span><span·class="p"·data-group-id="7511289183-1">(</span><span·class="p"·data-group-id="7511289183-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 168 | </span><span·class="c1">%ssa%·()·when·post_ssa_opt·-></span><span·class="w"> | 168 | </span><span·class="c1">%ssa%·()·when·post_ssa_opt·-></span><span·class="w"> |
| 169 | </span><span·class="c1">%ssa%·_·=·call(fun·return_int/0)·{·result_type·=>·{t_integer,{17,17}},</span><span·class="w"> | 169 | </span><span·class="c1">%ssa%·_·=·call(fun·return_int/0)·{·result_type·=>·{t_integer,{17,17}},</span><span·class="w"> |
| 170 | </span><span·class="c1">%ssa%······························location·=>·{_,32}·},</span><span·class="w"> | 170 | </span><span·class="c1">%ssa%······························location·=>·{_,32}·},</span><span·class="w"> |
| 171 | </span><span·class="c1">%ssa%·_·=·call(fun·return_tuple/0)·{</span><span·class="w"> | 171 | </span><span·class="c1">%ssa%·_·=·call(fun·return_tuple/0)·{</span><span·class="w"> |
| 172 | </span><span·class="c1">%ssa%····result_type·=>·{t_tuple,2,true,#{1·=>·{t_integer,{1,1}},</span><span·class="w"> | 172 | </span><span·class="c1">%ssa%····result_type·=>·{t_tuple,2,true,#{1·=>·{t_integer,{1,1}},</span><span·class="w"> |
| 173 | </span><span·class="c1">%ssa%·····································2·=>·{t_integer,{2,2}}}}</span><span·class="w"> | 173 | </span><span·class="c1">%ssa%·····································2·=>·{t_integer,{2,2}}}}</span><span·class="w"> |
| 174 | </span><span·class="c1">%ssa%·}.</span><span·class="w"> | 174 | </span><span·class="c1">%ssa%·}.</span><span·class="w"> |
| 175 | ····</span><span·class="n">X</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">return_int</span><span·class="p"·data-group-id=" | 175 | ····</span><span·class="n">X</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">return_int</span><span·class="p"·data-group-id="7511289183-2">(</span><span·class="p"·data-group-id="7511289183-2">)</span><span·class="p">,</span><span·class="w"> |
| 176 | ····</span><span·class="n">Y</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">return_tuple</span><span·class="p"·data-group-id=" | 176 | ····</span><span·class="n">Y</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">return_tuple</span><span·class="p"·data-group-id="7511289183-3">(</span><span·class="p"·data-group-id="7511289183-3">)</span><span·class="p">,</span><span·class="w"> |
| 177 | ····</span><span·class="p"·data-group-id=" | 177 | ····</span><span·class="p"·data-group-id="7511289183-4">{</span><span·class="n">X</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Y</span><span·class="p"·data-group-id="7511289183-4">}</span><span·class="p">.</span></code></pre><h2·id="semantics"·class="section-heading"> |
| 178 | ··<a·href="#semantics"·class="hover-link"> | 178 | ··<a·href="#semantics"·class="hover-link"> |
| 179 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 179 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 180 | ··</a> | 180 | ··</a> |
| 181 | ··<span·class="text">Semantics</span> | 181 | ··<span·class="text">Semantics</span> |
| 182 | </h2> | 182 | </h2> |
| 183 | <p>When·an·SSA·assertion·is·matched·against·the·BEAM·SSA·for·a·function, | 183 | <p>When·an·SSA·assertion·is·matched·against·the·BEAM·SSA·for·a·function, |
| 184 | patterns·are·applied·sequentially.·If·the·current·pattern·doesn't | 184 | patterns·are·applied·sequentially.·If·the·current·pattern·doesn't |
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| 246 | ······<p·class="built-using"> | 246 | ······<p·class="built-using"> |
| 247 | ········Built·using | 247 | ········Built·using |
| 248 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 248 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 249 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 249 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 250 | ······</p> | 250 | ······</p> |
| 251 | <p>Copyright·©·1996-202 | 251 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 252 | ····</footer> | 252 | ····</footer> |
| 253 | ··</div> | 253 | ··</div> |
| 254 | </main> | 254 | </main> |
| 255 | </div> | 255 | </div> |
| 256 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 256 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 257 | ··<script> | 257 | ··<script> |
| 258 | ··let·initialized·=·false; | 258 | ··let·initialized·=·false; |
| Offset 143, 15 lines modified | Offset 143, 15 lines modified | ||
| 143 | ······<p·class="built-using"> | 143 | ······<p·class="built-using"> |
| 144 | ········Built·using | 144 | ········Built·using |
| 145 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 145 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 146 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 146 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 147 | ······</p> | 147 | ······</p> |
| 148 | <p>Copyright·©·1996-202 | 148 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 149 | ····</footer> | 149 | ····</footer> |
| 150 | ··</div> | 150 | ··</div> |
| 151 | </main> | 151 | </main> |
| 152 | </div> | 152 | </div> |
| 153 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 153 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 154 | ··<script> | 154 | ··<script> |
| 155 | ··let·initialized·=·false; | 155 | ··let·initialized·=·false; |
| Offset 315, 15 lines modified | Offset 315, 15 lines modified | ||
| 315 | ······<p·class="built-using"> | 315 | ······<p·class="built-using"> |
| 316 | ········Built·using | 316 | ········Built·using |
| 317 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 317 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 318 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 318 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 319 | ······</p> | 319 | ······</p> |
| 320 | <p>Copyright·©·1996-202 | 320 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 321 | ····</footer> | 321 | ····</footer> |
| 322 | ··</div> | 322 | ··</div> |
| 323 | </main> | 323 | </main> |
| 324 | </div> | 324 | </div> |
| 325 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 325 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 326 | ··<script> | 326 | ··<script> |
| 327 | ··let·initialized·=·false; | 327 | ··let·initialized·=·false; |
| Offset 181, 15 lines modified | Offset 181, 15 lines modified | ||
| 181 | ······<p·class="built-using"> | 181 | ······<p·class="built-using"> |
| 182 | ········Built·using | 182 | ········Built·using |
| 183 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 183 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 184 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 184 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 185 | ······</p> | 185 | ······</p> |
| 186 | <p>Copyright·©·1996-202 | 186 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 187 | ····</footer> | 187 | ····</footer> |
| 188 | ··</div> | 188 | ··</div> |
| 189 | </main> | 189 | </main> |
| 190 | </div> | 190 | </div> |
| 191 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 191 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 192 | ··<script> | 192 | ··<script> |
| 193 | ··let·initialized·=·false; | 193 | ··let·initialized·=·false; |
| Offset 793, 15 lines modified | Offset 793, 15 lines modified | ||
| 793 | ····<div·class="summary-row"> | 793 | ····<div·class="summary-row"> |
| 794 | ······<div·class="summary-signature"> | 794 | ······<div·class="summary-signature"> |
| 795 | ········<a·href="#t:rsa_params/0"·data-no-tooltip·translate="no">rsa_params()</a> | 795 | ········<a·href="#t:rsa_params/0"·data-no-tooltip·translate="no">rsa_params()</a> |
| 796 | ······</div> | 796 | ······</div> |
| 797 | ········<div·class="summary-synopsis"><pre><code·class="text">rsa_public()·=·[E,·N]</code></pre><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">rsa_private</span><span·class="p"·data-group-id=" | 797 | ········<div·class="summary-synopsis"><pre><code·class="text">rsa_public()·=·[E,·N]</code></pre><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">rsa_private</span><span·class="p"·data-group-id="3883345603-1">(</span><span·class="p"·data-group-id="3883345603-1">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="3883345603-2">[</span><span·class="n">E</span><span·class="p">,</span><span·cl[·...·truncated·by·diffoscope;·len:·863,·SHA:·a90461635f87219da46d186d2fc09d2e0b425ed119abb1e0b7fbc564981ab646·...·]-3">]</span></code></pre><p>Where·E·is·the·public·exponent,·N·is·public·modulus·and·D·is·the·private |
| 798 | exponent.·The·longer·key·format·contains·redundant·information·that·will·make | 798 | exponent.·The·longer·key·format·contains·redundant·information·that·will·make |
| 799 | the·calculation·faster.·P1·and·P2·are·first·and·second·prime·factors.·E1·and·E2 | 799 | the·calculation·faster.·P1·and·P2·are·first·and·second·prime·factors.·E1·and·E2 |
| 800 | are·first·and·second·exponents.·C·is·the·CRT·coefficient.·The·terminology·is | 800 | are·first·and·second·exponents.·C·is·the·CRT·coefficient.·The·terminology·is |
| 801 | taken·from·<a·href="http://www.ietf.org/rfc/rfc3447.txt">RFC·3447</a>.</p></div> | 801 | taken·from·<a·href="http://www.ietf.org/rfc/rfc3447.txt">RFC·3447</a>.</p></div> |
| 802 | ····</div> | 802 | ····</div> |
| Offset 3610, 15 lines modified | Offset 3610, 15 lines modified | ||
| 3610 | ······<div·class="specs"> | 3610 | ······<div·class="specs"> |
| 3611 | ··········<pre·translate="no"><span·class="attribute">-type</span>·rsa_params()·::·{ModulusSizeInBits·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:integer/0">integer</a>(),·PublicExponent·::·<a·href="#t:key_integer/0">key_integer</a>()}.</pre> | 3611 | ··········<pre·translate="no"><span·class="attribute">-type</span>·rsa_params()·::·{ModulusSizeInBits·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:integer/0">integer</a>(),·PublicExponent·::·<a·href="#t:key_integer/0">key_integer</a>()}.</pre> |
| 3612 | ······</div> | 3612 | ······</div> |
| 3613 | <pre><code·class="text">rsa_public()·=·[E,·N]</code></pre><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">rsa_private</span><span·class="p"·data-group-id=" | 3613 | <pre><code·class="text">rsa_public()·=·[E,·N]</code></pre><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">rsa_private</span><span·class="p"·data-group-id="3883345603-1">(</span><span·class="p"·data-group-id="3883345603-1">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="3883345603-2">[</span><span·class="n">E</span><span·class="p">,</span><span·cl[·...·truncated·by·diffoscope;·len:·863,·SHA:·a90461635f87219da46d186d2fc09d2e0b425ed119abb1e0b7fbc564981ab646·...·]-3">]</span></code></pre><p>Where·E·is·the·public·exponent,·N·is·public·modulus·and·D·is·the·private |
| 3614 | exponent.·The·longer·key·format·contains·redundant·information·that·will·make | 3614 | exponent.·The·longer·key·format·contains·redundant·information·that·will·make |
| 3615 | the·calculation·faster.·P1·and·P2·are·first·and·second·prime·factors.·E1·and·E2 | 3615 | the·calculation·faster.·P1·and·P2·are·first·and·second·prime·factors.·E1·and·E2 |
| 3616 | are·first·and·second·exponents.·C·is·the·CRT·coefficient.·The·terminology·is | 3616 | are·first·and·second·exponents.·C·is·the·CRT·coefficient.·The·terminology·is |
| 3617 | taken·from·<a·href="http://www.ietf.org/rfc/rfc3447.txt">RFC·3447</a>.</p> | 3617 | taken·from·<a·href="http://www.ietf.org/rfc/rfc3447.txt">RFC·3447</a>.</p> |
| 3618 | ··</section> | 3618 | ··</section> |
| 3619 | </section> | 3619 | </section> |
| 3620 | <section·class="detail"·id="t:rsa_private/0"> | 3620 | <section·class="detail"·id="t:rsa_private/0"> |
| Offset 6076, 17 lines modified | Offset 6076, 17 lines modified | ||
| 6076 | ······</div> | 6076 | ······</div> |
| 6077 | <p>Create·a·state·object·for·<a·href="../../../../lib/stdlib-7.0/doc/html/rand.html">random·number·generation</a>,·in·order·to | 6077 | <p>Create·a·state·object·for·<a·href="../../../../lib/stdlib-7.0/doc/html/rand.html">random·number·generation</a>,·in·order·to |
| 6078 | generate·cryptographically·strong·random·numbers·(based·on·OpenSSL's | 6078 | generate·cryptographically·strong·random·numbers·(based·on·OpenSSL's |
| 6079 | <code·class="inline">BN_rand_range</code>).</p><p>Saves·the·state·in·the·process·dictionary·before·returning·it·as | 6079 | <code·class="inline">BN_rand_range</code>).</p><p>Saves·the·state·in·the·process·dictionary·before·returning·it·as |
| 6080 | well.·See·also·<a·href="../../../../lib/stdlib-7.0/doc/html/rand.html#seed/1"><code·class="inline">rand:seed/1</code></a>·and·<a·href="#rand_seed_s/0"><code·class="inline">rand_seed_s/0</code></a>.</p><p>When·using·the·state·object·from·this·function·the·<a·href="../../../../lib/stdlib-7.0/doc/html/rand.html"><code·class="inline">rand</code></a>·functions·using·it | 6080 | well.·See·also·<a·href="../../../../lib/stdlib-7.0/doc/html/rand.html#seed/1"><code·class="inline">rand:seed/1</code></a>·and·<a·href="#rand_seed_s/0"><code·class="inline">rand_seed_s/0</code></a>.</p><p>When·using·the·state·object·from·this·function·the·<a·href="../../../../lib/stdlib-7.0/doc/html/rand.html"><code·class="inline">rand</code></a>·functions·using·it |
| 6081 | may·raise·exception·<code·class="inline">error:low_entropy</code>·in·case·the·random·generator·failed·due | 6081 | may·raise·exception·<code·class="inline">error:low_entropy</code>·in·case·the·random·generator·failed·due |
| 6082 | to·lack·of·secure·"randomness".</p><p><em>Example</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">_</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">crypto</span><span·class="p">:</span><span·class="nf">rand_seed</span><span·class="p"·data-group-id="1 | 6082 | to·lack·of·secure·"randomness".</p><p><em>Example</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">_</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">crypto</span><span·class="p">:</span><span·class="nf">rand_seed</span><span·class="p"·data-group-id="1144444870-1">(</span><span·class="p"·data-group-id="1144444870-1">)</span><span·class="p">,</span><span·class="w"> |
| 6083 | </span><span·class="p">_</span><span·class="n">IntegerValue</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">rand</span><span·class="p">:</span><span·class="nf">uniform</span><span·class="p"·data-group-id="1 | 6083 | </span><span·class="p">_</span><span·class="n">IntegerValue</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">rand</span><span·class="p">:</span><span·class="nf">uniform</span><span·class="p"·data-group-id="1144444870-2">(</span><span·class="mi">42</span><span·class="p"·data-group-id="1144444870-2">)</span><span·class="p">,</span><span·class="w">·</span><span·class="c1">%·[1;·42]</span><span·class="w"> |
| 6084 | </span><span·class="p">_</span><span·class="n">FloatValue</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">rand</span><span·class="p">:</span><span·class="nf">uniform</span><span·class="p"·data-group-id="1 | 6084 | </span><span·class="p">_</span><span·class="n">FloatValue</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">rand</span><span·class="p">:</span><span·class="nf">uniform</span><span·class="p"·data-group-id="1144444870-3">(</span><span·class="p"·data-group-id="1144444870-3">)</span><span·class="p">.</span><span·class="w">·····</span><span·class="c1">%·[0.0;·1.0[</span></code></pre> |
| 6085 | ··</section> | 6085 | ··</section> |
| 6086 | </section> | 6086 | </section> |
| 6087 | <section·class="detail"·id="rand_seed/1"> | 6087 | <section·class="detail"·id="rand_seed/1"> |
| 6088 | ··<div·class="detail-header"> | 6088 | ··<div·class="detail-header"> |
| 6089 | ····<a·href="#rand_seed/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 6089 | ····<a·href="#rand_seed/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 6090 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 6090 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 6140, 17 lines modified | Offset 6140, 17 lines modified | ||
| 6140 | ······</div> | 6140 | ······</div> |
| 6141 | <p>Create·a·state·object·for·<a·href="../../../../lib/stdlib-7.0/doc/html/rand.html">random·number·generation</a>,·in·order·to | 6141 | <p>Create·a·state·object·for·<a·href="../../../../lib/stdlib-7.0/doc/html/rand.html">random·number·generation</a>,·in·order·to |
| 6142 | generate·cryptographically·strong·random·numbers.</p><p>Saves·the·state·in·the·process·dictionary·before·returning·it·as·well.·See·also | 6142 | generate·cryptographically·strong·random·numbers.</p><p>Saves·the·state·in·the·process·dictionary·before·returning·it·as·well.·See·also |
| 6143 | <a·href="../../../../lib/stdlib-7.0/doc/html/rand.html#seed/1"><code·class="inline">rand:seed/1</code></a>·and·<a·href="#rand_seed_alg_s/1"><code·class="inline">rand_seed_alg_s/1</code></a>.</p><p>When·using·the·state·object·from·this·function·the·<a·href="../../../../lib/stdlib-7.0/doc/html/rand.html"><code·class="inline">rand</code></a>·functions·using·it | 6143 | <a·href="../../../../lib/stdlib-7.0/doc/html/rand.html#seed/1"><code·class="inline">rand:seed/1</code></a>·and·<a·href="#rand_seed_alg_s/1"><code·class="inline">rand_seed_alg_s/1</code></a>.</p><p>When·using·the·state·object·from·this·function·the·<a·href="../../../../lib/stdlib-7.0/doc/html/rand.html"><code·class="inline">rand</code></a>·functions·using·it |
| 6144 | may·raise·exception·<code·class="inline">error:low_entropy</code>·in·case·the·random·generator·failed·due | 6144 | may·raise·exception·<code·class="inline">error:low_entropy</code>·in·case·the·random·generator·failed·due |
| 6145 | to·lack·of·secure·"randomness".</p><p><em>Example</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">_</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">crypto</span><span·class="p">:</span><span·class="nf">rand_seed_alg</span><span·class="p"·data-group-id=" | 6145 | to·lack·of·secure·"randomness".</p><p><em>Example</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">_</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">crypto</span><span·class="p">:</span><span·class="nf">rand_seed_alg</span><span·class="p"·data-group-id="5565053159-1">(</span><span·class="ss">crypto_cache</span><span·class="p"·data-group-id="5565053159-1">)</span><span·class="p">,</span><span·class="w"> |
| 6146 | </span><span·class="p">_</span><span·class="n">IntegerValue</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">rand</span><span·class="p">:</span><span·class="nf">uniform</span><span·class="p"·data-group-id=" | 6146 | </span><span·class="p">_</span><span·class="n">IntegerValue</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">rand</span><span·class="p">:</span><span·class="nf">uniform</span><span·class="p"·data-group-id="5565053159-2">(</span><span·class="mi">42</span><span·class="p"·data-group-id="5565053159-2">)</span><span·class="p">,</span><span·class="w">·</span><span·class="c1">%·[1;·42]</span><span·class="w"> |
| 6147 | </span><span·class="p">_</span><span·class="n">FloatValue</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">rand</span><span·class="p">:</span><span·class="nf">uniform</span><span·class="p"·data-group-id=" | 6147 | </span><span·class="p">_</span><span·class="n">FloatValue</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">rand</span><span·class="p">:</span><span·class="nf">uniform</span><span·class="p"·data-group-id="5565053159-3">(</span><span·class="p"·data-group-id="5565053159-3">)</span><span·class="p">.</span><span·class="w">·····</span><span·class="c1">%·[0.0;·1.0[</span></code></pre> |
| 6148 | ··</section> | 6148 | ··</section> |
| 6149 | </section> | 6149 | </section> |
| 6150 | <section·class="detail"·id="rand_seed_alg/2"> | 6150 | <section·class="detail"·id="rand_seed_alg/2"> |
| 6151 | ··<div·class="detail-header"> | 6151 | ··<div·class="detail-header"> |
| 6152 | ····<a·href="#rand_seed_alg/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 6152 | ····<a·href="#rand_seed_alg/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 6153 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 6153 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 6172, 20 lines modified | Offset 6172, 20 lines modified | ||
| 6172 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·rand_seed_alg(Alg·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:atom/0">atom</a>(),·Seed·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>())·->·{<a·href="../../../../lib/stdlib-7.0/doc/html/rand.html#t:alg_handler/0">rand:alg_handler</a>(),·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:atom/0">atom</a>()·|·<a·href="#t:rand_cache_seed/0">rand_cache_seed</a>()}.</pre> | 6172 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·rand_seed_alg(Alg·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:atom/0">atom</a>(),·Seed·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>())·->·{<a·href="../../../../lib/stdlib-7.0/doc/html/rand.html#t:alg_handler/0">rand:alg_handler</a>(),·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:atom/0">atom</a>()·|·<a·href="#t:rand_cache_seed/0">rand_cache_seed</a>()}.</pre> |
| 6173 | ······</div> | 6173 | ······</div> |
| 6174 | <p>Creates·a·state·object·for·<a·href="../../../../lib/stdlib-7.0/doc/html/rand.html">random·number·generation</a>,·in·order·to | 6174 | <p>Creates·a·state·object·for·<a·href="../../../../lib/stdlib-7.0/doc/html/rand.html">random·number·generation</a>,·in·order·to |
| 6175 | generate·cryptographically·unpredictable·random·numbers.</p><p>Saves·the·state·in·the·process·dictionary·before·returning·it·as·well.·See·also | 6175 | generate·cryptographically·unpredictable·random·numbers.</p><p>Saves·the·state·in·the·process·dictionary·before·returning·it·as·well.·See·also |
| 6176 | <a·href="#rand_seed_alg_s/2"><code·class="inline">rand_seed_alg_s/2</code></a>.</p><p><em>Example</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">_</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">crypto</span><span·class="p">:</span><span·class="nf">rand_seed_alg</span><span·class="p"·data-group-id=" | 6176 | <a·href="#rand_seed_alg_s/2"><code·class="inline">rand_seed_alg_s/2</code></a>.</p><p><em>Example</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">_</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">crypto</span><span·class="p">:</span><span·class="nf">rand_seed_alg</span><span·class="p"·data-group-id="1210657325-1">(</span><span·class="ss">crypto_aes</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"my·seed"</span><span·class="p"·data-group-id="1210657325-1">)</span><span·class="p">,</span><span·class="w"> |
| 6177 | </span><span·class="n">IntegerValue</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">rand</span><span·class="p">:</span><span·class="nf">uniform</span><span·class="p"·data-group-id=" | 6177 | </span><span·class="n">IntegerValue</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">rand</span><span·class="p">:</span><span·class="nf">uniform</span><span·class="p"·data-group-id="1210657325-2">(</span><span·class="mi">42</span><span·class="p"·data-group-id="1210657325-2">)</span><span·class="p">,</span><span·class="w">·</span><span·class="c1">%·[1;·42]</span><span·class="w"> |
| 6178 | </span><span·class="n">FloatValue</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">rand</span><span·class="p">:</span><span·class="nf">uniform</span><span·class="p"·data-group-id=" | 6178 | </span><span·class="n">FloatValue</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">rand</span><span·class="p">:</span><span·class="nf">uniform</span><span·class="p"·data-group-id="1210657325-3">(</span><span·class="p"·data-group-id="1210657325-3">)</span><span·class="p">,</span><span·class="w">·····</span><span·class="c1">%·[0.0;·1.0[</span><span·class="w"> |
| 6179 | </span><span·class="p">_</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">crypto</span><span·class="p">:</span><span·class="nf">rand_seed_alg</span><span·class="p"·data-group-id=" | 6179 | </span><span·class="p">_</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">crypto</span><span·class="p">:</span><span·class="nf">rand_seed_alg</span><span·class="p"·data-group-id="1210657325-4">(</span><span·class="ss">crypto_aes</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"my·seed"</span><span·class="p"·data-group-id="1210657325-4">)</span><span·class="p">,</span><span·class="w"> |
| 6180 | </span><span·class="n">IntegerValue</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">rand</span><span·class="p">:</span><span·class="nf">uniform</span><span·class="p"·data-group-id=" | 6180 | </span><span·class="n">IntegerValue</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">rand</span><span·class="p">:</span><span·class="nf">uniform</span><span·class="p"·data-group-id="1210657325-5">(</span><span·class="mi">42</span><span·class="p"·data-group-id="1210657325-5">)</span><span·class="p">,</span><span·class="w">·</span><span·class="c1">%·Same·values</span><span·class="w"> |
| 6181 | </span><span·class="n">FloatValue</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">rand</span><span·class="p">:</span><span·class="nf">uniform</span><span·class="p"·data-group-id=" | 6181 | </span><span·class="n">FloatValue</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">rand</span><span·class="p">:</span><span·class="nf">uniform</span><span·class="p"·data-group-id="1210657325-6">(</span><span·class="p"·data-group-id="1210657325-6">)</span><span·class="p">.</span><span·class="w">·····</span><span·class="c1">%·again</span></code></pre> |
| 6182 | ··</section> | 6182 | ··</section> |
| 6183 | </section> | 6183 | </section> |
| 6184 | <section·class="detail"·id="rand_seed_alg_s/1"> | 6184 | <section·class="detail"·id="rand_seed_alg_s/1"> |
| 6185 | ··<div·class="detail-header"> | 6185 | ··<div·class="detail-header"> |
| 6186 | ····<a·href="#rand_seed_alg_s/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 6186 | ····<a·href="#rand_seed_alg_s/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 6187 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 6187 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 6792, 22 lines modified | Offset 6792, 22 lines modified | ||
| 6792 | ················link_type·:=·dynamic·|·static, | 6792 | ················link_type·:=·dynamic·|·static, |
| 6793 | ················otp_crypto_version·:=·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:string/0">string</a>(), | 6793 | ················otp_crypto_version·:=·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:string/0">string</a>(), |
| 6794 | ················fips_provider_available·=>·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:boolean/0">boolean</a>(), | 6794 | ················fips_provider_available·=>·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:boolean/0">boolean</a>(), |
| 6795 | ················fips_provider_buildinfo·=>·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:string/0">string</a>()}.</pre> | 6795 | ················fips_provider_buildinfo·=>·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:string/0">string</a>()}.</pre> |
| 6796 | ······</div> | 6796 | ······</div> |
| 6797 | <p>Get·information·about·crypto·and·the·OpenSSL·backend.</p><p>Returns·a·map·with·information·about·the·compilation·and·linking·of·crypto.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">crypto</span><span·class="p">:</span><span·class="nf">info</span><span·class="p"·data-group-id=" | 6797 | <p>Get·information·about·crypto·and·the·OpenSSL·backend.</p><p>Returns·a·map·with·information·about·the·compilation·and·linking·of·crypto.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">crypto</span><span·class="p">:</span><span·class="nf">info</span><span·class="p"·data-group-id="2175196631-1">(</span><span·class="p"·data-group-id="2175196631-1">)</span><span·class="p">.</span><span·class="w"> |
| 6798 | </span><span·class="p"·data-group-id=" | 6798 | </span><span·class="p"·data-group-id="2175196631-2">#{</span><span·class="ss">compile_type</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">normal</span><span·class="p">,</span><span·class="w"> |
| 6799 | ··</span><span·class="ss">cryptolib_version_compiled</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"OpenSSL·3.0.0·7·sep·2021"</span><span·class="p">,</span><span·class="w"> | 6799 | ··</span><span·class="ss">cryptolib_version_compiled</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"OpenSSL·3.0.0·7·sep·2021"</span><span·class="p">,</span><span·class="w"> |
| 6800 | ··</span><span·class="ss">cryptolib_version_linked</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"OpenSSL·3.0.0·7·sep·2021"</span><span·class="p">,</span><span·class="w"> | 6800 | ··</span><span·class="ss">cryptolib_version_linked</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"OpenSSL·3.0.0·7·sep·2021"</span><span·class="p">,</span><span·class="w"> |
| 6801 | ··</span><span·class="ss">link_type</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">dynamic</span><span·class="p">,</span><span·class="w"> | 6801 | ··</span><span·class="ss">link_type</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">dynamic</span><span·class="p">,</span><span·class="w"> |
| 6802 | ··</span><span·class="ss">otp_crypto_version</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"5.0.2"</span><span·class="p">,</span><span·class="w"> | 6802 | ··</span><span·class="ss">otp_crypto_version</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"5.0.2"</span><span·class="p">,</span><span·class="w"> |
| 6803 | ··</span><span·class="ss">fips_provider_available</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">true</span><span·class="p">,</span><span·class="w"> | 6803 | ··</span><span·class="ss">fips_provider_available</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">true</span><span·class="p">,</span><span·class="w"> |
| 6804 | ··</span><span·class="ss">fips_provider_buildinfo</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"3.0.0"</span><span·class="p"·data-group-id=" | 6804 | ··</span><span·class="ss">fips_provider_buildinfo</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"3.0.0"</span><span·class="p"·data-group-id="2175196631-2">}</span><span·class="w"> |
| 6805 | </span><span·class="mi">2</span><span·class="o">></span></code></pre><p>More·association·types·than·documented·may·be·present·in·the·map.·Some·of·the | 6805 | </span><span·class="mi">2</span><span·class="o">></span></code></pre><p>More·association·types·than·documented·may·be·present·in·the·map.·Some·of·the |
| 6806 | associations·(like·fips)·may·be·absent·if·not·supported.</p> | 6806 | associations·(like·fips)·may·be·absent·if·not·supported.</p> |
| 6807 | ··</section> | 6807 | ··</section> |
| 6808 | </section> | 6808 | </section> |
| 6809 | <section·class="detail"·id="info_fips/0"> | 6809 | <section·class="detail"·id="info_fips/0"> |
| 6810 | ··<div·class="detail-header"> | 6810 | ··<div·class="detail-header"> |
| Offset 6864, 16 lines modified | Offset 6864, 16 lines modified | ||
| 6864 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·info_lib()·->·[{Name,·VerNum,·VerStr}] | 6864 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·info_lib()·->·[{Name,·VerNum,·VerStr}] |
| 6865 | ··················when·Name·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:binary/0">binary</a>(),·VerNum·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:integer/0">integer</a>(),·VerStr·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:binary/0">binary</a>().</pre> | 6865 | ··················when·Name·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:binary/0">binary</a>(),·VerNum·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:integer/0">integer</a>(),·VerStr·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:binary/0">binary</a>().</pre> |
| 6866 | ······</div> | 6866 | ······</div> |
| 6867 | <p>Get·the·name·and·version·of·the·libraries·used·by·crypto.</p><p><code·class="inline">Name</code>·is·the·name·of·the·library.·<code·class="inline">VerNum</code>·is·the·numeric·version·according·to | 6867 | <p>Get·the·name·and·version·of·the·libraries·used·by·crypto.</p><p><code·class="inline">Name</code>·is·the·name·of·the·library.·<code·class="inline">VerNum</code>·is·the·numeric·version·according·to |
| 6868 | the·library's·own·versioning·scheme.·<code·class="inline">VerStr</code>·contains·a·text·variant·of·the | 6868 | the·library's·own·versioning·scheme.·<code·class="inline">VerStr</code>·contains·a·text·variant·of·the |
| 6869 | version.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="nf">info_lib</span><span·class="p"·data-group-id=" | 6869 | version.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="nf">info_lib</span><span·class="p"·data-group-id="0426957526-1">(</span><span·class="p"·data-group-id="0426957526-1">)</span><span·class="p">.</span><span·class="w"> |
| 6870 | </span><span·class="p"·data-group-id=" | 6870 | </span><span·class="p"·data-group-id="0426957526-2">[</span><span·class="p"·data-group-id="0426957526-3">{</span><span·class="p"·data-group-id="0426957526-4"><<</span><span·class="s">"OpenSSL"</span><span·class="p"·data-group-id="0426957526-4">>></span><span·class="p">,</[·...·truncated·by·diffoscope;·len:·367,·SHA:·2b4534e6d3c289b563528caac9f666e1618946ce44afcc134e67cf3d0f15a010·...·]-2">]</span></code></pre><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>From·OTP·R16·the·<em>numeric·version</em>·represents·the·version·of·the·OpenSSL |
| 6871 | <em>header·files</em>·(<code·class="inline">openssl/opensslv.h</code>)·used·when·crypto·was·compiled.·The·text | 6871 | <em>header·files</em>·(<code·class="inline">openssl/opensslv.h</code>)·used·when·crypto·was·compiled.·The·text |
| 6872 | variant·represents·the·libcrypto·library·used·at·runtime.·In·earlier·OTP | 6872 | variant·represents·the·libcrypto·library·used·at·runtime.·In·earlier·OTP |
| 6873 | versions·both·numeric·and·text·was·taken·from·the·library.</p></section> | 6873 | versions·both·numeric·and·text·was·taken·from·the·library.</p></section> |
| 6874 | ··</section> | 6874 | ··</section> |
| 6875 | </section> | 6875 | </section> |
| 6876 | <section·class="detail"·id="mod_pow/3"> | 6876 | <section·class="detail"·id="mod_pow/3"> |
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| Offset 221, 15 lines modified | Offset 221, 15 lines modified | ||
| 221 | ······<p·class="built-using"> | 221 | ······<p·class="built-using"> |
| 222 | ········Built·using | 222 | ········Built·using |
| 223 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 223 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 224 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 224 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 225 | ······</p> | 225 | ······</p> |
| 226 | <p>Copyright·©·1996-202 | 226 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 227 | ····</footer> | 227 | ····</footer> |
| 228 | ··</div> | 228 | ··</div> |
| 229 | </main> | 229 | </main> |
| 230 | </div> | 230 | </div> |
| 231 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 231 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 232 | ··<script> | 232 | ··<script> |
| 233 | ··let·initialized·=·false; | 233 | ··let·initialized·=·false; |
| Offset 157, 50 lines modified | Offset 157, 50 lines modified | ||
| 157 | <h3·id="sign-with-an-engine-stored-private-key"·class="section-heading"> | 157 | <h3·id="sign-with-an-engine-stored-private-key"·class="section-heading"> |
| 158 | ··<a·href="#sign-with-an-engine-stored-private-key"·class="hover-link"> | 158 | ··<a·href="#sign-with-an-engine-stored-private-key"·class="hover-link"> |
| 159 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 159 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 160 | ··</a> | 160 | ··</a> |
| 161 | ··<span·class="text">Sign·with·an·engine·stored·private·key</span> | 161 | ··<span·class="text">Sign·with·an·engine·stored·private·key</span> |
| 162 | </h3> | 162 | </h3> |
| 163 | <p>This·example·shows·how·to·construct·a·key·reference·that·is·used·in·a·sign | 163 | <p>This·example·shows·how·to·construct·a·key·reference·that·is·used·in·a·sign |
| 164 | operation.·The·actual·key·is·stored·in·the·engine·that·is·loaded·at·prompt·1.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="p"·data-group-id=" | 164 | operation.·The·actual·key·is·stored·in·the·engine·that·is·loaded·at·prompt·1.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="p"·data-group-id="5680637743-1">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">EngineRef</span><span·class="p"·data-group-id="5680637743-1">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><sp[·...·truncated·by·diffoscope;·len:·276,·SHA:·c4e65d7f4196f8531123cb78b0c7ca4d18b445642c6ce855d4526e88b8ad94d4·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 165 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> | 165 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> |
| 166 | </span><span·class="p"·data-group-id=" | 166 | </span><span·class="p"·data-group-id="5680637743-3">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="p">#</span><span·class="n">Ref</span><span·class="o"><</span><span·class="mf">0.2399045421</span><span·class="p">.</span><span·class="mf">3028942852.173962</span><span·[·...·truncated·by·diffoscope;·len:·62,·SHA:·3da0665cb8ca1b9c5a754c813899cccbb365bbe1292df92a02af6685f5975ea2·...·]-3">}</span><span·class="gp·unselectable"> |
| 167 | 2>·</span><span·class="n">PrivKey</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 167 | 2>·</span><span·class="n">PrivKey</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="5680637743-4">#{</span><span·class="ss">engine</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="n">EngineRef</span><span·class="p">,</span><span·class="w"> |
| 168 | ···············</span><span·class="ss">key_id</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"id·of·the·private·key·in·Engine"</span><span·class="p"·data-group-id=" | 168 | ···············</span><span·class="ss">key_id</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"id·of·the·private·key·in·Engine"</span><span·class="p"·data-group-id="5680637743-4">}</span><span·class="p">.</span><span·class="w"> |
| 169 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="gp·unselectable"> | 169 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="gp·unselectable"> |
| 170 | 3>·</span><span·class="n">Signature</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">crypto</span><span·class="p">:</span><span·class="nf">sign</span><span·class="p"·data-group-id=" | 170 | 3>·</span><span·class="n">Signature</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">crypto</span><span·class="p">:</span><span·class="nf">sign</span><span·class="p"·data-group-id="5680637743-5">(</span><span·class="ss">rsa</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">sha</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="5680637743-6"><<</span><span·class="s">"Th[·...·truncated·by·diffoscope;·len:·201,·SHA:·9e42aedae9a1673ba9fc65aee8fcbfafadae7db044ee7057648e67d6cf3e385e·...·]-5">)</span><span·class="p">.</span><span·class="w"> |
| 171 | </span><span·class="p"·data-group-id=" | 171 | </span><span·class="p"·data-group-id="5680637743-7"><<</span><span·class="mi">65</span><span·class="p">,</span><span·class="mi">6</span><span·class="p">,</span><span·class="mi">125</span><span·class="p">,</span><span·class="mi">254</span><span·class="p">,</span><span·class="mi">54</span><span·class="p">,</span><span·class="mi">233</span><span·class="p">,</span><span·class="mi">84</span><span·class="p">,</span><span·class="mi">77</span><span·class="p">,</span><span·class="mi">83</span><span·class="p">,</span><span·class="mi">63</span><span·class="p">,</span><span·class="mi">168</span><span·class="p">,</span><span·class="mi">28</span><span·class="p">,</span><span·class="mi">169</span><span·class="p">,</span><span·class="mi">214</span><span·class="p">,</span><span·class="mi">121</span><span·class="p">,</span><span·class="mi">76</span><span·class="p">,</span><span·class="w"> |
| 172 | ··</span><span·class="mi">207</span><span·class="p">,</span><span·class="mi">177</span><span·class="p">,</span><span·class="mi">124</span><span·class="p">,</span><span·class="mi">183</span><span·class="p">,</span><span·class="mi">156</span><span·class="p">,</span><span·class="mi">185</span><span·class="p">,</span><span·class="mi">160</span><span·class="p">,</span><span·class="mi">243</span><span·class="p">,</span><span·class="mi">36</span><span·class="p">,</span><span·class="mi">79</span><span·class="p">,</span><span·class="mi">125</span><span·class="p">,</span><span·class="mi">230</span><span·class="p">,</span><span·class="mi">231</span><span·class="p">,</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p"·data-group-id=" | 172 | ··</span><span·class="mi">207</span><span·class="p">,</span><span·class="mi">177</span><span·class="p">,</span><span·class="mi">124</span><span·class="p">,</span><span·class="mi">183</span><span·class="p">,</span><span·class="mi">156</span><span·class="p">,</span><span·class="mi">185</span><span·class="p">,</span><span·class="mi">160</span><span·class="p">,</span><span·class="mi">243</span><span·class="p">,</span><span·class="mi">36</span><span·class="p">,</span><span·class="mi">79</span><span·class="p">,</span><span·class="mi">125</span><span·class="p">,</span><span·class="mi">230</span><span·class="p">,</span><span·class="mi">231</span><span·class="p">,</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p"·data-group-id="5680637743-7">>></span></code></pre><h3·id="verify-with-an-engine-stored-public-key"·class="section-heading"> |
| 173 | ··<a·href="#verify-with-an-engine-stored-public-key"·class="hover-link"> | 173 | ··<a·href="#verify-with-an-engine-stored-public-key"·class="hover-link"> |
| 174 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 174 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 175 | ··</a> | 175 | ··</a> |
| 176 | ··<span·class="text">Verify·with·an·engine·stored·public·key</span> | 176 | ··<span·class="text">Verify·with·an·engine·stored·public·key</span> |
| 177 | </h3> | 177 | </h3> |
| 178 | <p>Here·the·signature·and·message·in·the·last·example·is·verifyed·using·the·public | 178 | <p>Here·the·signature·and·message·in·the·last·example·is·verifyed·using·the·public |
| 179 | key.·The·public·key·is·stored·in·an·engine,·only·to·exemplify·that·it·is | 179 | key.·The·public·key·is·stored·in·an·engine,·only·to·exemplify·that·it·is |
| 180 | possible.·The·public·key·could·of·course·be·handled·openly·as·usual.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">4>·</span><span·class="n">PublicKey</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 180 | possible.·The·public·key·could·of·course·be·handled·openly·as·usual.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">4>·</span><span·class="n">PublicKey</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="4890320166-1">#{</span><span·class="ss">engine</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="n">EngineRef</span><span·class="p">,</span><span·class="w"> |
| 181 | ·················</span><span·class="ss">key_id</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"id·of·the·public·key·in·Engine"</span><span·class="p"·data-group-id=" | 181 | ·················</span><span·class="ss">key_id</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"id·of·the·public·key·in·Engine"</span><span·class="p"·data-group-id="4890320166-1">}</span><span·class="p">.</span><span·class="w"> |
| 182 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="gp·unselectable"> | 182 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="gp·unselectable"> |
| 183 | 5>·</span><span·class="nc">crypto</span><span·class="p">:</span><span·class="nf">verify</span><span·class="p"·data-group-id=" | 183 | 5>·</span><span·class="nc">crypto</span><span·class="p">:</span><span·class="nf">verify</span><span·class="p"·data-group-id="4890320166-2">(</span><span·class="ss">rsa</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">sha</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4890320166-3"><<</span><span·class="s">"Th[·...·truncated·by·diffoscope;·len:·283,·SHA:·f8e528e22b57207f9bd2813616fd2bc50cb6528186dfc05d2a3960c54b81f933·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 184 | </span><span·class="ss">true</span><span·class="w"> | 184 | </span><span·class="ss">true</span><span·class="w"> |
| 185 | </span><span·class="mi">6</span><span·class="o">></span></code></pre><h3·id="using-a-password-protected-private-key"·class="section-heading"> | 185 | </span><span·class="mi">6</span><span·class="o">></span></code></pre><h3·id="using-a-password-protected-private-key"·class="section-heading"> |
| 186 | ··<a·href="#using-a-password-protected-private-key"·class="hover-link"> | 186 | ··<a·href="#using-a-password-protected-private-key"·class="hover-link"> |
| 187 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 187 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 188 | ··</a> | 188 | ··</a> |
| 189 | ··<span·class="text">Using·a·password·protected·private·key</span> | 189 | ··<span·class="text">Using·a·password·protected·private·key</span> |
| 190 | </h3> | 190 | </h3> |
| 191 | <p>The·same·example·as·the·first·sign·example,·except·that·a·password·protects·the | 191 | <p>The·same·example·as·the·first·sign·example,·except·that·a·password·protects·the |
| 192 | key·down·in·the·Engine.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">6>·</span><span·class="n">PrivKeyPwd</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 192 | key·down·in·the·Engine.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">6>·</span><span·class="n">PrivKeyPwd</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="3356797158-1">#{</span><span·class="ss">engine</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="n">EngineRef</span><span·class="p">,</span><span·class="w"> |
| 193 | ··················</span><span·class="ss">key_id</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"id·of·the·pwd·protected·private·key·in·Engine"</span><span·class="p">,</span><span·class="w"> | 193 | ··················</span><span·class="ss">key_id</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"id·of·the·pwd·protected·private·key·in·Engine"</span><span·class="p">,</span><span·class="w"> |
| 194 | » » ··</span><span·class="ss">password</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"password"</span><span·class="p"·data-group-id=" | 194 | » » ··</span><span·class="ss">password</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"password"</span><span·class="p"·data-group-id="3356797158-1">}</span><span·class="p">.</span><span·class="w"> |
| 195 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="gp·unselectable"> | 195 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="gp·unselectable"> |
| 196 | 7>·</span><span·class="nc">crypto</span><span·class="p">:</span><span·class="nf">sign</span><span·class="p"·data-group-id=" | 196 | 7>·</span><span·class="nc">crypto</span><span·class="p">:</span><span·class="nf">sign</span><span·class="p"·data-group-id="3356797158-2">(</span><span·class="ss">rsa</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">sha</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3356797158-3"><<</span><span·class="s">"Th[·...·truncated·by·diffoscope;·len:·204,·SHA:·f446218ddf7c1db1579145054d2f2ed9b37fdb7a69e2d0e184d19dbf4a76c929·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 197 | </span><span·class="p"·data-group-id=" | 197 | </span><span·class="p"·data-group-id="3356797158-4"><<</span><span·class="mi">140</span><span·class="p">,</span><span·class="mi">80</span><span·class="p">,</span><span·class="mi">168</span><span·class="p">,</span><span·class="mi">101</span><span·class="p">,</span><span·class="mi">234</span><span·class="p">,</span><span·class="mi">211</span><span·class="p">,</span><span·class="mi">146</span><span·class="p">,</span><span·class="mi">183</span><span·class="p">,</span><span·class="mi">231</span><span·class="p">,</span><span·class="mi">190</span><span·class="p">,</span><span·class="mi">160</span><span·class="p">,</span><span·class="mi">82</span><span·class="p">,</span><span·class="mi">85</span><span·class="p">,</span><span·class="mi">163</span><span·class="p">,</span><span·class="w"> |
| 198 | ··</span><span·class="mi">175</span><span·class="p">,</span><span·class="mi">106</span><span·class="p">,</span><span·class="mi">77</span><span·class="p">,</span><span·class="mi">241</span><span·class="p">,</span><span·class="mi">141</span><span·class="p">,</span><span·class="mi">120</span><span·class="p">,</span><span·class="mi">72</span><span·class="p">,</span><span·class="mi">149</span><span·class="p">,</span><span·class="mi">181</span><span·class="p">,</span><span·class="mi">181</span><span·class="p">,</span><span·class="mi">194</span><span·class="p">,</span><span·class="mi">154</span><span·class="p">,</span><span·class="mi">175</span><span·class="p">,</span><span·class="mi">76</span><span·class="p">,</span><span·class="w"> | 198 | ··</span><span·class="mi">175</span><span·class="p">,</span><span·class="mi">106</span><span·class="p">,</span><span·class="mi">77</span><span·class="p">,</span><span·class="mi">241</span><span·class="p">,</span><span·class="mi">141</span><span·class="p">,</span><span·class="mi">120</span><span·class="p">,</span><span·class="mi">72</span><span·class="p">,</span><span·class="mi">149</span><span·class="p">,</span><span·class="mi">181</span><span·class="p">,</span><span·class="mi">181</span><span·class="p">,</span><span·class="mi">194</span><span·class="p">,</span><span·class="mi">154</span><span·class="p">,</span><span·class="mi">175</span><span·class="p">,</span><span·class="mi">76</span><span·class="p">,</span><span·class="w"> |
| 199 | ··</span><span·class="mi">223</span><span·class="p">,</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p"·data-group-id=" | 199 | ··</span><span·class="mi">223</span><span·class="p">,</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p"·data-group-id="3356797158-4">>></span><span·class="w"> |
| 200 | </span><span·class="mi">8</span><span·class="o">></span></code></pre> | 200 | </span><span·class="mi">8</span><span·class="o">></span></code></pre> |
| 201 | </div> | 201 | </div> |
| 202 | <div·class="bottom-actions"·id="bottom-actions"> | 202 | <div·class="bottom-actions"·id="bottom-actions"> |
| 203 | ··<div·class="bottom-actions-item"> | 203 | ··<div·class="bottom-actions-item"> |
| 204 | ······<a·href="engine_load.html"·class="bottom-actions-button"·rel="prev"> | 204 | ······<a·href="engine_load.html"·class="bottom-actions-button"·rel="prev"> |
| Offset 244, 15 lines modified | Offset 244, 15 lines modified | ||
| 244 | ······<p·class="built-using"> | 244 | ······<p·class="built-using"> |
| 245 | ········Built·using | 245 | ········Built·using |
| 246 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 246 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 247 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 247 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 248 | ······</p> | 248 | ······</p> |
| 249 | <p>Copyright·©·1996-202 | 249 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 250 | ····</footer> | 250 | ····</footer> |
| 251 | ··</div> | 251 | ··</div> |
| 252 | </main> | 252 | </main> |
| 253 | </div> | 253 | </div> |
| 254 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 254 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 255 | ··<script> | 255 | ··<script> |
| 256 | ··let·initialized·=·false; | 256 | ··let·initialized·=·false; |
| Offset 148, 64 lines modified | Offset 148, 64 lines modified | ||
| 148 | <h3·id="dynamically-load-an-engine-from-default-directory"·class="section-heading"> | 148 | <h3·id="dynamically-load-an-engine-from-default-directory"·class="section-heading"> |
| 149 | ··<a·href="#dynamically-load-an-engine-from-default-directory"·class="hover-link"> | 149 | ··<a·href="#dynamically-load-an-engine-from-default-directory"·class="hover-link"> |
| 150 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 150 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 151 | ··</a> | 151 | ··</a> |
| 152 | ··<span·class="text">Dynamically·load·an·engine·from·default·directory</span> | 152 | ··<span·class="text">Dynamically·load·an·engine·from·default·directory</span> |
| 153 | </h3> | 153 | </h3> |
| 154 | <p>If·the·engine·is·located·in·the·OpenSSL/LibreSSL·installation·<code·class="inline">engines</code> | 154 | <p>If·the·engine·is·located·in·the·OpenSSL/LibreSSL·installation·<code·class="inline">engines</code> |
| 155 | directory.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="p"·data-group-id=" | 155 | directory.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="p"·data-group-id="9116289513-1">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Engine</span><span·class="p"·data-group-id="9116289513-1">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·[·...·truncated·by·diffoscope;·len:·655,·SHA:·b553625d7522302667809578eb334c8571647d2592d193381fea640a2e111e4f·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 156 | ·</span><span·class="p"·data-group-id=" | 156 | ·</span><span·class="p"·data-group-id="9116289513-6">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="p">#</span><span·class="n">Ref</span><span·class="p"·data-group-id="9116289513-6">}</span></code></pre><h3·id="load-an-engine-with-the-dynamic-engine"·class="section-heading"> |
| 157 | ··<a·href="#load-an-engine-with-the-dynamic-engine"·class="hover-link"> | 157 | ··<a·href="#load-an-engine-with-the-dynamic-engine"·class="hover-link"> |
| 158 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 158 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 159 | ··</a> | 159 | ··</a> |
| 160 | ··<span·class="text">Load·an·engine·with·the·dynamic·engine</span> | 160 | ··<span·class="text">Load·an·engine·with·the·dynamic·engine</span> |
| 161 | </h3> | 161 | </h3> |
| 162 | <p>Load·an·engine·with·the·help·of·the·dynamic·engine·by·giving·the·path·to·the | 162 | <p>Load·an·engine·with·the·help·of·the·dynamic·engine·by·giving·the·path·to·the |
| 163 | library.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">·</span><span·class="mi">2</span><span·class="o">></span><span·class="w">·</span><span·class="p"·data-group-id=" | 163 | library.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">·</span><span·class="mi">2</span><span·class="o">></span><span·class="w">·</span><span·class="p"·data-group-id="1292675747-1">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Engine</span><span·class="p"·data-group-id="1292675747-1">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·[·...·truncated·by·diffoscope;·len:·278,·SHA:·a23aa35e79b87a450a8b91b7fa3ffacdf76b11263fab9beb9186e8b20f68b949·...·]7-3">>></span><span·class="p">,</span><span·class="w"> |
| 164 | ······································</span><span·class="p"·data-group-id=" | 164 | ······································</span><span·class="p"·data-group-id="1292675747-4">[</span><span·class="p"·data-group-id="1292675747-5">{</span><span·class="p"·data-group-id="1292675747-6"><<</span><span·class="s">"SO_PATH"</span><span·class="p"·data-group-id="1292675747-6">>></span><span·class="p">,</span><span·class="w"> |
| 165 | ········································</span><span·class="p"·data-group-id=" | 165 | ········································</span><span·class="p"·data-group-id="1292675747-7"><<</span><span·class="s">"/some/path/otp_test_engine.so"</span><span·class="p"·data-group-id="1292675747-7">>></span><span·class="p"·data-group-id="1292675747-5">}</span><span·class="p">,</span><span·class="w"> |
| 166 | ·······································</span><span·class="p"·data-group-id=" | 166 | ·······································</span><span·class="p"·data-group-id="1292675747-8">{</span><span·class="p"·data-group-id="1292675747-9"><<</span><span·class="s">"ID"</span><span·class="p"·data-group-id="1292675747-9">>></span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id[·...·truncated·by·diffoscope;·len:·171,·SHA:·be3a7f907892038903e5c59a333a878c31e9573712a65473592c37acb37315be·...·]7-8">}</span><span·class="p">,</span><span·class="w"> |
| 167 | ·······································</span><span·class="p"·data-group-id=" | 167 | ·······································</span><span·class="p"·data-group-id="1292675747-11"><<</span><span·class="s">"LOAD"</span><span·class="p"·data-group-id="1292675747-11">>></span><span·class="p"·data-group-id="1292675747-4">]</span><span·class="p">,</span><span·class="w"> |
| 168 | ······································</span><span·class="p"·data-group-id=" | 168 | ······································</span><span·class="p"·data-group-id="1292675747-12">[</span><span·class="p"·data-group-id="1292675747-12">]</span><span·class="p"·data-group-id="1292675747-2">)</span><span·class="p">.</span><span·class="w"> |
| 169 | ·</span><span·class="p"·data-group-id=" | 169 | ·</span><span·class="p"·data-group-id="1292675747-13">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="p">#</span><span·class="n">Ref</span><span·class="p"·data-group-id="1292675747-13">}</span></code></pre><h3·id="load-an-engine-and-replace-some-methods"·class="section-heading"> |
| 170 | ··<a·href="#load-an-engine-and-replace-some-methods"·class="hover-link"> | 170 | ··<a·href="#load-an-engine-and-replace-some-methods"·class="hover-link"> |
| 171 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 171 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 172 | ··</a> | 172 | ··</a> |
| 173 | ··<span·class="text">Load·an·engine·and·replace·some·methods</span> | 173 | ··<span·class="text">Load·an·engine·and·replace·some·methods</span> |
| 174 | </h3> | 174 | </h3> |
| 175 | <p>Load·an·engine·with·the·help·of·the·dynamic·engine·and·just·replace·some·engine | 175 | <p>Load·an·engine·with·the·help·of·the·dynamic·engine·and·just·replace·some·engine |
| 176 | methods.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">·</span><span·class="mi">3</span><span·class="o">></span><span·class="w">·</span><span·class="p"·data-group-id=" | 176 | methods.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">·</span><span·class="mi">3</span><span·class="o">></span><span·class="w">·</span><span·class="p"·data-group-id="6226292909-1">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Engine</span><span·class="p"·data-group-id="6226292909-1">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·[·...·truncated·by·diffoscope;·len:·279,·SHA:·43af5c09664f7aea8724ca265c16fc1aebe295963c92eb4327faa63269924f9c·...·]-3">>></span><span·class="p">,</span><span·class="w"> |
| 177 | ······································</span><span·class="p"·data-group-id=" | 177 | ······································</span><span·class="p"·data-group-id="6226292909-4">[</span><span·class="p"·data-group-id="6226292909-5">{</span><span·class="p"·data-group-id="6226292909-6"><<</span><span·class="s">"SO_PATH"</span><span·class="p"·data-group-id="6226292909-6">>></span><span·class="p">,</span><span·class="w"> |
| 178 | ········································</span><span·class="p"·data-group-id=" | 178 | ········································</span><span·class="p"·data-group-id="6226292909-7"><<</span><span·class="s">"/some/path/otp_test_engine.so"</span><span·class="p"·data-group-id="6226292909-7">>></span><span·class="p"·data-group-id="6226292909-5">}</span><span·class="p">,</span><span·class="w"> |
| 179 | ·······································</span><span·class="p"·data-group-id=" | 179 | ·······································</span><span·class="p"·data-group-id="6226292909-8">{</span><span·class="p"·data-group-id="6226292909-9"><<</span><span·class="s">"ID"</span><span·class="p"·data-group-id="6226292909-9">>></span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id[·...·truncated·by·diffoscope;·len:·172,·SHA:·e94f06a2f541bdb4637468a4d05341335178014ad502f9d01ef9e6c5aefd331a·...·]-8">}</span><span·class="p">,</span><span·class="w"> |
| 180 | ·······································</span><span·class="p"·data-group-id=" | 180 | ·······································</span><span·class="p"·data-group-id="6226292909-11"><<</span><span·class="s">"LOAD"</span><span·class="p"·data-group-id="6226292909-11">>></span><span·class="p"·data-group-id="6226292909-4">]</span><span·class="p">,</span><span·class="w"> |
| 181 | ······································</span><span·class="p"·data-group-id=" | 181 | ······································</span><span·class="p"·data-group-id="6226292909-12">[</span><span·class="p"·data-group-id="6226292909-12">]</span><span·class="p"·data-group-id="6226292909-2">)</span><span·class="p">.</span><span·class="w"> |
| 182 | </span><span·class="p"·data-group-id=" | 182 | </span><span·class="p"·data-group-id="6226292909-13">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="p">#</span><span·class="n">Ref</span><span·class="p"·data-group-id="6226292909-13">}</span><span·class="gp·unselectable"> |
| 183 | 4>·</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">crypto</span><span·class="p">:</span><span·class="nf">engine_register</span><span·class="p"·data-group-id=" | 183 | 4>·</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">crypto</span><span·class="p">:</span><span·class="nf">engine_register</span><span·class="p"·data-group-id="6226292909-14">(</span><span·class="n">Engine</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6226292909-15">[</span><span·class="ss">engine_method_digests</span><span·class="p"·data-group-id="6226292909-15">]</span><sp[·...·truncated·by·diffoscope;·len:·38,·SHA:·5d27edc50ea11dddf430b11bd14c0c2e7be2d41e9b3d3ecf83f470890e7a9566·...·]-14">)</span><span·class="p">.</span><span·class="w"> |
| 184 | </span><span·class="ss">ok</span></code></pre><h3·id="load-with-the-ensure-loaded-function"·class="section-heading"> | 184 | </span><span·class="ss">ok</span></code></pre><h3·id="load-with-the-ensure-loaded-function"·class="section-heading"> |
| 185 | ··<a·href="#load-with-the-ensure-loaded-function"·class="hover-link"> | 185 | ··<a·href="#load-with-the-ensure-loaded-function"·class="hover-link"> |
| 186 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 186 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 187 | ··</a> | 187 | ··</a> |
| 188 | ··<span·class="text">Load·with·the·ensure·loaded·function</span> | 188 | ··<span·class="text">Load·with·the·ensure·loaded·function</span> |
| 189 | </h3> | 189 | </h3> |
| 190 | <p>This·function·makes·sure·the·engine·is·loaded·just·once·and·the·ID·is·added·to | 190 | <p>This·function·makes·sure·the·engine·is·loaded·just·once·and·the·ID·is·added·to |
| 191 | the·internal·engine·list·of·OpenSSL.·The·following·calls·to·the·function·will | 191 | the·internal·engine·list·of·OpenSSL.·The·following·calls·to·the·function·will |
| 192 | check·if·the·ID·is·loaded·and·then·just·get·a·new·reference·to·the·engine.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">·</span><span·class="mi">5</span><span·class="o">></span><span·class="w">·</span><span·class="p"·data-group-id=" | 192 | check·if·the·ID·is·loaded·and·then·just·get·a·new·reference·to·the·engine.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">·</span><span·class="mi">5</span><span·class="o">></span><span·class="w">·</span><span·class="p"·data-group-id="1508195810-1">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Engine</span><span·class="p"·data-group-id="1508195810-1">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·[·...·truncated·by·diffoscope;·len:·284,·SHA:·f1f7bca8288d5cde4cebb6dc8eaea2887e63a34670e4715a422c9caf20c7c8db·...·]-3">>></span><span·class="p">,</span><span·class="w"> |
| 193 | ···············································</span><span·class="p"·data-group-id=" | 193 | ···············································</span><span·class="p"·data-group-id="1508195810-4"><<</span><span·class="s">"/some/path/otp_test_engine.so"</span><span·class="p"·data-group-id="1508195810-4">>></span><span·class="p"·data-group-id="1508195810-2">)</span><span·class="p">.</span><span·class="w"> |
| 194 | ·</span><span·class="p"·data-group-id=" | 194 | ·</span><span·class="p"·data-group-id="1508195810-5">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="p">#</span><span·class="n">Ref</span><span·class="p"·data-group-id="1508195810-5">}</span></code></pre><p>To·remove·the·tag·from·the·OpenSSL·engine[·...·truncated·by·diffoscope;·len:·469,·SHA:·3535acdb125429503bfc503b6da0717273e19d156d98ceace70bdde7c37e5aba·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 195 | ·</span><span·class="ss">ok</span></code></pre><p>To·unload·it·use·<a·href="crypto.html#engine_unload/1"><code·class="inline">crypto:engine_unload/1</code></a>·which·removes·the·references·to·the | 195 | ·</span><span·class="ss">ok</span></code></pre><p>To·unload·it·use·<a·href="crypto.html#engine_unload/1"><code·class="inline">crypto:engine_unload/1</code></a>·which·removes·the·references·to·the |
| 196 | engine.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">·</span><span·class="mi">6</span><span·class="o">></span><span·class="w">·</span><span·class="nc">crypto</span><span·class="p">:</span><span·class="nf">engine_unload</span><span·class="p"·data-group-id=" | 196 | engine.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">·</span><span·class="mi">6</span><span·class="o">></span><span·class="w">·</span><span·class="nc">crypto</span><span·class="p">:</span><span·class="nf">engine_unload</span><span·class="p"·data-group-id="1903420178-1">(</span><span·class="n">Engine</span><span·class="p"·data-group-id="1903420178-1">)</span><span·class="p">.</span><span·class="w"> |
| 197 | ·</span><span·class="ss">ok</span></code></pre><h3·id="list-all-engines-currently-loaded"·class="section-heading"> | 197 | ·</span><span·class="ss">ok</span></code></pre><h3·id="list-all-engines-currently-loaded"·class="section-heading"> |
| 198 | ··<a·href="#list-all-engines-currently-loaded"·class="hover-link"> | 198 | ··<a·href="#list-all-engines-currently-loaded"·class="hover-link"> |
| 199 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 199 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 200 | ··</a> | 200 | ··</a> |
| 201 | ··<span·class="text">List·all·engines·currently·loaded</span> | 201 | ··<span·class="text">List·all·engines·currently·loaded</span> |
| 202 | </h3> | 202 | </h3> |
| 203 | <pre><code·class="makeup·erlang"·translate="no"><span·class="w">·</span><span·class="mi">8</span><span·class="o">></span><span·class="w">·</span><span·class="nc">crypto</span><span·class="p">:</span><span·class="nf">engine_list</span><span·class="p"·data-group-id=" | 203 | <pre><code·class="makeup·erlang"·translate="no"><span·class="w">·</span><span·class="mi">8</span><span·class="o">></span><span·class="w">·</span><span·class="nc">crypto</span><span·class="p">:</span><span·class="nf">engine_list</span><span·class="p"·data-group-id="6216891610-1">(</span><span·class="p"·data-group-id="6216891610-1">)</span><span·class="p">.</span><span·class="w"> |
| 204 | </span><span·class="p"·data-group-id=" | 204 | </span><span·class="p"·data-group-id="6216891610-2">[</span><span·class="p"·data-group-id="6216891610-3"><<</span><span·class="s">"dynamic"</span><span·class="p"·data-group-id="6216891610-3">>></span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-gro[·...·truncated·by·diffoscope;·len:·175,·SHA:·a39cb05ff91817480b4166236f3a927b42119802722084af4c514b2f28bb0b9e·...·]-2">]</span></code></pre> |
| 205 | </div> | 205 | </div> |
| 206 | <div·class="bottom-actions"·id="bottom-actions"> | 206 | <div·class="bottom-actions"·id="bottom-actions"> |
| 207 | ··<div·class="bottom-actions-item"> | 207 | ··<div·class="bottom-actions-item"> |
| 208 | ······<a·href="fips.html"·class="bottom-actions-button"·rel="prev"> | 208 | ······<a·href="fips.html"·class="bottom-actions-button"·rel="prev"> |
| 209 | ········<span·class="subheader"> | 209 | ········<span·class="subheader"> |
| Offset 248, 15 lines modified | Offset 248, 15 lines modified | ||
| 248 | ······<p·class="built-using"> | 248 | ······<p·class="built-using"> |
| 249 | ········Built·using | 249 | ········Built·using |
| 250 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 250 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 251 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 251 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 252 | ······</p> | 252 | ······</p> |
| 253 | <p>Copyright·©·1996-202 | 253 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 254 | ····</footer> | 254 | ····</footer> |
| 255 | ··</div> | 255 | ··</div> |
| 256 | </main> | 256 | </main> |
| 257 | </div> | 257 | </div> |
| 258 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 258 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 259 | ··<script> | 259 | ··<script> |
| 260 | ··let·initialized·=·false; | 260 | ··let·initialized·=·false; |
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| 289 | ······<p·class="built-using"> | 289 | ······<p·class="built-using"> |
| 290 | ········Built·using | 290 | ········Built·using |
| 291 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 291 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 292 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 292 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 293 | ······</p> | 293 | ······</p> |
| 294 | <p>Copyright·©·1996-202 | 294 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 295 | ····</footer> | 295 | ····</footer> |
| 296 | ··</div> | 296 | ··</div> |
| 297 | </main> | 297 | </main> |
| 298 | </div> | 298 | </div> |
| 299 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 299 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 300 | ··<script> | 300 | ··<script> |
| 301 | ··let·initialized·=·false; | 301 | ··let·initialized·=·false; |
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| 188 | </h3> | 188 | </h3> |
| 189 | <p>The·functions·<a·href="crypto.html#crypto_init/4">crypto_init/4</a>·and | 189 | <p>The·functions·<a·href="crypto.html#crypto_init/4">crypto_init/4</a>·and |
| 190 | <a·href="crypto.html#crypto_update/2">crypto_update/2</a>·are·intended·to·be·used·for | 190 | <a·href="crypto.html#crypto_update/2">crypto_update/2</a>·are·intended·to·be·used·for |
| 191 | encrypting·or·decrypting·a·sequence·of·blocks.·First·one·call·of·<code·class="inline">crypto_init/4</code> | 191 | encrypting·or·decrypting·a·sequence·of·blocks.·First·one·call·of·<code·class="inline">crypto_init/4</code> |
| 192 | initialises·the·crypto·context.·One·or·more·calls·<code·class="inline">crypto_update/2</code>·does·the | 192 | initialises·the·crypto·context.·One·or·more·calls·<code·class="inline">crypto_update/2</code>·does·the |
| 193 | actual·encryption·or·decryption·for·each·block.</p><p>This·example·shows·first·the·encryption·of·two·blocks·and·then·decryptions·of | 193 | actual·encryption·or·decryption·for·each·block.</p><p>This·example·shows·first·the·encryption·of·two·blocks·and·then·decryptions·of |
| 194 | the·cipher·text,·but·divided·into·three·blocks·just·to·show·that·it·is·possible | 194 | the·cipher·text,·but·divided·into·three·blocks·just·to·show·that·it·is·possible |
| 195 | to·divide·the·plain·text·and·cipher·text·differently·for·some·ciphers:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">» </span><span·class="mi">1</span><span·class="o">></span><span·class="w">·</span><span·class="nc">application</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id=" | 195 | to·divide·the·plain·text·and·cipher·text·differently·for·some·ciphers:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">» </span><span·class="mi">1</span><span·class="o">></span><span·class="w">·</span><span·class="nc">application</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id="6377264970-1">(</span><span·class="ss">crypto</span><span·class="p"·data-group-id="6377264970-1">)</span><span·class="p">.</span><span·class="w"> |
| 196 | » </span><span·class="ss">ok</span><span·class="w"> | 196 | » </span><span·class="ss">ok</span><span·class="w"> |
| 197 | » </span><span·class="mi">2</span><span·class="o">></span><span·class="w">·</span><span·class="n">Key</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 197 | » </span><span·class="mi">2</span><span·class="o">></span><span·class="w">·</span><span·class="n">Key</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="6377264970-2"><<</span><span·class="mi">1</span><span·class="p">:</span><span·class="mi">128</span><span·class="p"·data-group-id="6377264970-2">>></span><span·class="p">.</span><span·class="w"> |
| 198 | » </span><span·class="p"·data-group-id=" | 198 | » </span><span·class="p"·data-group-id="6377264970-3"><<</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·[·...·truncated·by·diffoscope;·len:·574,·SHA:·43024f5f3a67bd539f22d3d96ac0649c553f0ddb95018ab8152fa99a42f19ad9·...·]-3">>></span><span·class="w"> |
| 199 | » </span><span·class="mi">3</span><span·class="o">></span><span·class="w">·</span><span·class="n">IV</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 199 | » </span><span·class="mi">3</span><span·class="o">></span><span·class="w">·</span><span·class="n">IV</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="6377264970-4"><<</span><span·class="mi">0</span><span·class="p">:</span><span·class="mi">128</span><span·class="p"·data-group-id="6377264970-4">>></span><span·class="p">.</span><span·class="w"> |
| 200 | » </span><span·class="p"·data-group-id=" | 200 | » </span><span·class="p"·data-group-id="6377264970-5"><<</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·[·...·truncated·by·diffoscope;·len:·574,·SHA:·bed618c40da3edc5eb88379f1e5cf7824a51e8bb8a05b737599f135f58307e74·...·]-5">>></span><span·class="w"> |
| 201 | » </span><span·class="mi">4</span><span·class="o">></span><span·class="w">·</span><span·class="n">StateEnc</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">crypto</span><span·class="p">:</span><span·class="nf">crypto_init</span><span·class="p"·data-group-id=" | 201 | » </span><span·class="mi">4</span><span·class="o">></span><span·class="w">·</span><span·class="n">StateEnc</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">crypto</span><span·class="p">:</span><span·class="nf">crypto_init</span><span·class="p"·data-group-id="6377264970-6">(</span><span·class="ss">aes_128_ctr</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Key</span><span·class="p">,</span><span·class="w">·</span><span·class="n">IV</span><span·class="p">,</span><span·class="w">·</span><spa[·...·truncated·by·diffoscope;·len:·65,·SHA:·6a07a46195d731f8175b7801f79acabf4cdf882933778cddb7fb1e4928a5fb91·...·]-6">)</span><span·class="p">.</span><span·class="w">·</span><span·class="c1">%·encrypt·->·true</span><span·class="w"> |
| 202 | » </span><span·class="p">#</span><span·class="n">Ref</span><span·class="o"><</span><span·class="mf">0.3768901617</span><span·class="p">.</span><span·class="mf">1128660993.124047</span><span·class="o">></span><span·class="w"> | 202 | » </span><span·class="p">#</span><span·class="n">Ref</span><span·class="o"><</span><span·class="mf">0.3768901617</span><span·class="p">.</span><span·class="mf">1128660993.124047</span><span·class="o">></span><span·class="w"> |
| 203 | » </span><span·class="mi">5</span><span·class="o">></span><span·class="w">·</span><span·class="nc">crypto</span><span·class="p">:</span><span·class="nf">crypto_update</span><span·class="p"·data-group-id=" | 203 | » </span><span·class="mi">5</span><span·class="o">></span><span·class="w">·</span><span·class="nc">crypto</span><span·class="p">:</span><span·class="nf">crypto_update</span><span·class="p"·data-group-id="6377264970-7">(</span><span·class="n">StateEnc</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6377264970-8"><<</span><span·class="s">"First·bytes"</span><span·class="p"·data-group-id="6377264970-8">>[·...·truncated·by·diffoscope;·len:·52,·SHA:·2d1401a18495b7d20634b9341a02fd3dbdf358547f38a7bee210cf9646365164·...·]-7">)</span><span·class="p">.</span><span·class="w"> |
| 204 | » </span><span·class="p"·data-group-id=" | 204 | » </span><span·class="p"·data-group-id="6377264970-9"><<</span><span·class="mi">67</span><span·class="p">,</span><span·class="mi">44</span><span·class="p">,</span><span·class="mi">216</span><span·class="p">,</span><span·class="mi">166</span><span·class="p">,</span><span·class="mi">25</span[·...·truncated·by·diffoscope;·len:·343,·SHA:·bb958f99e24e5036ab3c64806c39e0e81c00d1455f1d0aa2a3ffa7f6e2814fce·...·]-9">>></span><span·class="w"> |
| 205 | » </span><span·class="mi">6</span><span·class="o">></span><span·class="w">·</span><span·class="nc">crypto</span><span·class="p">:</span><span·class="nf">crypto_update</span><span·class="p"·data-group-id=" | 205 | » </span><span·class="mi">6</span><span·class="o">></span><span·class="w">·</span><span·class="nc">crypto</span><span·class="p">:</span><span·class="nf">crypto_update</span><span·class="p"·data-group-id="6377264970-10">(</span><span·class="n">StateEnc</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6377264970-11"><<</span><span·class="s">"Second·bytes"</span><span·class="p"·data-group-id="6377264970-11">[·...·truncated·by·diffoscope;·len:·56,·SHA:·297f82dd90d4461640f461d460dc90ca8dd5d809af2fcabbcb8219570dc5ed31·...·]-10">)</span><span·class="p">.</span><span·class="w"> |
| 206 | » </span><span·class="p"·data-group-id=" | 206 | » </span><span·class="p"·data-group-id="6377264970-12"><<</span><span·class="mi">16</span><span·class="p">,</span><span·class="mi">79</span><span·class="p">,</span><span·class="mi">94</span><span·class="p">,</span><span·class="mi">115</span><span·class="p">,</span><span·class="mi">234</spa[·...·truncated·by·diffoscope;·len:·397,·SHA:·b1e3187152a9408a836fbd26eafec4f5fcb57bdb5e5133b334032a612f7cc7be·...·]-12">>></span><span·class="w"> |
| 207 | » </span><span·class="mi">7</span><span·class="o">></span><span·class="w"> | 207 | » </span><span·class="mi">7</span><span·class="o">></span><span·class="w"> |
| 208 | » </span><span·class="mi">7</span><span·class="o">></span><span·class="w">·</span><span·class="n">StateDec</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">crypto</span><span·class="p">:</span><span·class="nf">crypto_init</span><span·class="p"·data-group-id=" | 208 | » </span><span·class="mi">7</span><span·class="o">></span><span·class="w">·</span><span·class="n">StateDec</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">crypto</span><span·class="p">:</span><span·class="nf">crypto_init</span><span·class="p"·data-group-id="6377264970-13">(</span><span·class="ss">aes_128_ctr</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Key</span><span·class="p">,</span><span·class="w">·</span><span·class="n">IV</span><span·class="p">,</span><span·class="w">·</span><sp[·...·truncated·by·diffoscope;·len:·67,·SHA:·5c1a983be591f2543c34e81271b2513b737fe9a804c467465ee836cff02e6d1a·...·]-13">)</span><span·class="p">.</span><span·class="w">·</span><span·class="c1">%·decrypt·->·false</span><span·class="w"> |
| 209 | » </span><span·class="p">#</span><span·class="n">Ref</span><span·class="o"><</span><span·class="mf">0.3768901617</span><span·class="p">.</span><span·class="mf">1128660994.124255</span><span·class="o">></span><span·class="w"> | 209 | » </span><span·class="p">#</span><span·class="n">Ref</span><span·class="o"><</span><span·class="mf">0.3768901617</span><span·class="p">.</span><span·class="mf">1128660994.124255</span><span·class="o">></span><span·class="w"> |
| 210 | » </span><span·class="mi">8</span><span·class="o">></span><span·class="w">·</span><span·class="nc">crypto</span><span·class="p">:</span><span·class="nf">crypto_update</span><span·class="p"·data-group-id=" | 210 | » </span><span·class="mi">8</span><span·class="o">></span><span·class="w">·</span><span·class="nc">crypto</span><span·class="p">:</span><span·class="nf">crypto_update</span><span·class="p"·data-group-id="6377264970-14">(</span><span·class="n">StateDec</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6377264970-15"><<</span><span·class="mi">67</span><span·class="p">,</span><span·class="mi">44</span><span·class="p">,[·...·truncated·by·diffoscope;·len:·339,·SHA:·25e3674baeb7ba76962aa1d640cd9ba1a9767f7255d5bb5b24f2275766a23794·...·]-14">)</span><span·class="p">.</span><span·class="w"> |
| 211 | » </span><span·class="p"·data-group-id=" | 211 | » </span><span·class="p"·data-group-id="6377264970-16"><<</span><span·class="s">"First·b"</span><span·class="p"·data-group-id="6377264970-16">>></span><span·class="w"> |
| 212 | » </span><span·class="mi">9</span><span·class="o">></span><span·class="w">·</span><span·class="nc">crypto</span><span·class="p">:</span><span·class="nf">crypto_update</span><span·class="p"·data-group-id=" | 212 | » </span><span·class="mi">9</span><span·class="o">></span><span·class="w">·</span><span·class="nc">crypto</span><span·class="p">:</span><span·class="nf">crypto_update</span><span·class="p"·data-group-id="6377264970-17">(</span><span·class="n">StateDec</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6377264970-18"><<</span><span·class="mi">5</span><span·class="p">,</span><span·class="mi">66</span><span·class="p">,</span><span·class="mi">6</span><span·class="p">,</span><span·class="mi">162</span><span·class="p">,</span><span·class="mi">16</span><span·class="p">,</span><span·class="mi">79</span><span·class="p">,</span><span·class="mi">94</span><span·class="p">,</span><span·class="mi">115</span><span·class="p">,</span><span·class="mi">234</span><span·class="p">,</span><span·class="mi">197</span><span·class="p">,</span><span·class="w"> |
| 213 | ········</span><span·class="mi">94</span><span·class="p">,</span><span·class="mi">253</span><span·class="p">,</span><span·class="mi">16</span><span·class="p">,</span><span·class="mi">144</span><span·class="p">,</span><span·class="mi">151</span><span·class="p"·data-group-id=" | 213 | ········</span><span·class="mi">94</span><span·class="p">,</span><span·class="mi">253</span><span·class="p">,</span><span·class="mi">16</span><span·class="p">,</span><span·class="mi">144</span><span·class="p">,</span><span·class="mi">151</span><span·class="p"·data-group-id="6377264970-18">>></span><span·class="p"·data-group-id="6377264970-17">)</span><span·class="p">.</span><span·class="w"> |
| 214 | » </span><span·class="p"·data-group-id=" | 214 | » </span><span·class="p"·data-group-id="6377264970-19"><<</span><span·class="s">"ytesSecond·byte"</span><span·class="p"·data-group-id="6377264970-19">>></span><span·class="w"> |
| 215 | » </span><span·class="mi">10</span><span·class="o">></span><span·class="w">·</span><span·class="nc">crypto</span><span·class="p">:</span><span·class="nf">crypto_update</span><span·class="p"·data-group-id=" | 215 | » </span><span·class="mi">10</span><span·class="o">></span><span·class="w">·</span><span·class="nc">crypto</span><span·class="p">:</span><span·class="nf">crypto_update</span><span·class="p"·data-group-id="6377264970-20">(</span><span·class="n">StateDec</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6377264970-21"><<</span><span·class="mi">41</span><span·class="p"·data-group-id="6377264970-21">>></span><span·[·...·truncated·by·diffoscope;·len:·35,·SHA:·3991b39e2475ee673ee1fbfcfd46a4343eff16a007bdea3d49d7f566e0fb066a·...·]-20">)</span><span·class="p">.</span><span·class="w"> |
| 216 | » </span><span·class="p"·data-group-id=" | 216 | » </span><span·class="p"·data-group-id="6377264970-22"><<</span><span·class="s">"s"</span><span·class="p"·data-group-id="6377264970-22">>></span><span·class="w"> |
| 217 | » </span><span·class="mi">11</span><span·class="o">></span></code></pre><p>Note·that·the·internal·data·that·the·<code·class="inline">StateEnc</code>·and·<code·class="inline">StateDec</code>·references·are | 217 | » </span><span·class="mi">11</span><span·class="o">></span></code></pre><p>Note·that·the·internal·data·that·the·<code·class="inline">StateEnc</code>·and·<code·class="inline">StateDec</code>·references·are |
| 218 | destructivly·updated·by·the·calls·to | 218 | destructivly·updated·by·the·calls·to |
| 219 | <a·href="crypto.html#crypto_update/2">crypto_update/2</a>.·This·is·to·gain·time·in·the·calls | 219 | <a·href="crypto.html#crypto_update/2">crypto_update/2</a>.·This·is·to·gain·time·in·the·calls |
| 220 | of·the·nifs·interfacing·the·cryptolib.·In·a·loop·where·the·state·is·saved·in·the | 220 | of·the·nifs·interfacing·the·cryptolib.·In·a·loop·where·the·state·is·saved·in·the |
| 221 | loop's·state,·it·also·saves·one·update·of·the·loop·state·per·crypto·operation.</p><p>For·example,·a·simple·server·receiving·text·parts·to·encrypt·and·send·the·result | 221 | loop's·state,·it·also·saves·one·update·of·the·loop·state·per·crypto·operation.</p><p>For·example,·a·simple·server·receiving·text·parts·to·encrypt·and·send·the·result |
| 222 | back·to·the·one·who·sent·them·(the·<code·class="inline">Requester</code>):</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">» </span><span·class="nf">encode</span><span·class="p"·data-group-id="9 | 222 | back·to·the·one·who·sent·them·(the·<code·class="inline">Requester</code>):</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">» </span><span·class="nf">encode</span><span·class="p"·data-group-id="9633327534-1">(</span><span·class="n">Crypto</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Key</span><span·class="p">,</span><span·class="w">·</span><span·class="n">IV</span><span·class="p"·data-group-id="9633327534-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 223 | » </span><span·class="nf">crypto_loop</span><span·class="p"·data-group-id="9 | 223 | » </span><span·class="nf">crypto_loop</span><span·class="p"·data-group-id="9633327534-2">(</span><span·class="nc">crypto</span><span·class="p">:</span><span·class="nf">crypto_init</span><span·class="p"·data-group-id="9633327534-3">(</span><span·class="n">Crypto</span><span·class="p">,</span><span·class="w">·</span><span·class="n">[·...·truncated·by·diffoscope;·len:·253,·SHA:·37d411281d92a4085ea91ab69f98c3e9fbc0da49a537efcda958279cdca92b2d·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 224 | » </span><span·class="nf">crypto_loop</span><span·class="p"·data-group-id="9 | 224 | » </span><span·class="nf">crypto_loop</span><span·class="p"·data-group-id="9633327534-4">(</span><span·class="n">State</span><span·class="p"·data-group-id="9633327534-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 225 | » </span><span·class="k">receive</span><span·class="w"> | 225 | » </span><span·class="k">receive</span><span·class="w"> |
| 226 | ········</span><span·class="p"·data-group-id="9 | 226 | ········</span><span·class="p"·data-group-id="9633327534-5">{</span><span·class="n">Text</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Requester</span><span·class="p"·data-group-id="9633327534-5">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 227 | ········</span><span·class="n">Requester</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="nc">crypto</span><span·class="p">:</span><span·class="nf">crypto_update</span><span·class="p"·data-group-id="9 | 227 | ········</span><span·class="n">Requester</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="nc">crypto</span><span·class="p">:</span><span·class="nf">crypto_update</span><span·class="p"·data-group-id="9633327534-6">(</span><span·class="n">State</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Text</span><span·class="p"·data-group-id="9633327534-6">)</span><span·class="p">,</span><span·class="w"> |
| 228 | » </span><span·class="nf">loop</span><span·class="p"·data-group-id="9 | 228 | » </span><span·class="nf">loop</span><span·class="p"·data-group-id="9633327534-7">(</span><span·class="n">State</span><span·class="p"·data-group-id="9633327534-7">)</span><span·class="w"> |
| 229 | » </span><span·class="k">end</span><span·class="p">.</span></code></pre><h3·id="example-of-crypto_one_time-5"·class="section-heading"> | 229 | » </span><span·class="k">end</span><span·class="p">.</span></code></pre><h3·id="example-of-crypto_one_time-5"·class="section-heading"> |
| 230 | ··<a·href="#example-of-crypto_one_time-5"·class="hover-link"> | 230 | ··<a·href="#example-of-crypto_one_time-5"·class="hover-link"> |
| 231 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 231 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 232 | ··</a> | 232 | ··</a> |
| 233 | ··<span·class="text">Example·of·crypto_one_time/5</span> | 233 | ··<span·class="text">Example·of·crypto_one_time/5</span> |
| 234 | </h3> | 234 | </h3> |
| 235 | <p>The·same·example·as·in·the | 235 | <p>The·same·example·as·in·the |
| 236 | <a·href="new_api.html#examples-of-crypto_init-4-and-crypto_update-2">previous·section</a>, | 236 | <a·href="new_api.html#examples-of-crypto_init-4-and-crypto_update-2">previous·section</a>, |
| 237 | but·now·with·one·call·to·<a·href="crypto.html#crypto_one_time/5">crypto_one_time/5</a>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">» </span><span·class="mi">1</span><span·class="o">></span><span·class="w">·</span><span·class="n">Key</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 237 | but·now·with·one·call·to·<a·href="crypto.html#crypto_one_time/5">crypto_one_time/5</a>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">» </span><span·class="mi">1</span><span·class="o">></span><span·class="w">·</span><span·class="n">Key</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="8957714857-1"><<</span><span·class="mi">1</span><span·class="p">:</span><span·class="mi">128</span><span·class="p"·data-group-id="8957714857-1">>></span><span·class="p">.</span><span·class="w"> |
| 238 | » </span><span·class="p"·data-group-id=" | 238 | » </span><span·class="p"·data-group-id="8957714857-2"><<</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·[·...·truncated·by·diffoscope;·len:·574,·SHA:·81785785ab3da6216829825b9a5b45958bd68caa856547e51bad72f7acc90d81·...·]-2">>></span><span·class="w"> |
| 239 | » </span><span·class="mi">2</span><span·class="o">></span><span·class="w">·</span><span·class="n">IV</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 239 | » </span><span·class="mi">2</span><span·class="o">></span><span·class="w">·</span><span·class="n">IV</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="8957714857-3"><<</span><span·class="mi">0</span><span·class="p">:</span><span·class="mi">128</span><span·class="p"·data-group-id="8957714857-3">>></span><span·class="p">.</span><span·class="w"> |
| 240 | » </span><span·class="p"·data-group-id=" | 240 | » </span><span·class="p"·data-group-id="8957714857-4"><<</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·[·...·truncated·by·diffoscope;·len:·574,·SHA:·a252df9705336d4113cfb476d707d93b1269076bd8399bd60aa60443df55619a·...·]-4">>></span><span·class="w"> |
| 241 | » </span><span·class="mi">3</span><span·class="o">></span><span·class="w">·</span><span·class="n">Txt</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 241 | » </span><span·class="mi">3</span><span·class="o">></span><span·class="w">·</span><span·class="n">Txt</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="8957714857-5">[</span><span·class="p"·data-group-id="8957714857-6"><<</span><span·class="s">"First·bytes"</span><span·class="p"·data-group-id="8957714857-6">>></span><span·class="p">,</span><span·class="p"·data-group-id="8957714857-7"[·...·truncated·by·diffoscope;·len:·164,·SHA:·8d98b1225d49fbb93efc3865a27fb243c817010bc3bdf24ec1442211a9404b24·...·]-5">]</span><span·class="p">.</span><span·class="w"> |
| 242 | » </span><span·class="p"·data-group-id=" | 242 | » </span><span·class="p"·data-group-id="8957714857-8">[</span><span·class="p"·data-group-id="8957714857-9"><<</span><span·class="s">"First·bytes"</span><span·class="p"·data-group-id="8957714857-9">>></span><span·class="p">,</span><span·class="p"·data-group-id="8957714857-10[·...·truncated·by·diffoscope;·len:·166,·SHA:·f93ec043aded608eb6d12caf0d0d4414fc2b13be4d4da023d42064509d489f40·...·]-8">]</span><span·class="w"> |
| 243 | » </span><span·class="mi">4</span><span·class="o">></span><span·class="w">·</span><span·class="nc">crypto</span><span·class="p">:</span><span·class="nf">crypto_one_time</span><span·class="p"·data-group-id=" | 243 | » </span><span·class="mi">4</span><span·class="o">></span><span·class="w">·</span><span·class="nc">crypto</span><span·class="p">:</span><span·class="nf">crypto_one_time</span><span·class="p"·data-group-id="8957714857-11">(</span><span·class="ss">aes_128_ctr</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Key</span><span·class="p">,</span><span·class="w">·</span><span·class="n">IV</span><span·class="p">,</span><span·class="w">·</span><sp[·...·truncated·by·diffoscope;·len:·140,·SHA:·b9ab8ed25fd877b6e9bf3b16135b9a2f7e3563f376b5847aa80ac6fe1d6f11b2·...·]-11">)</span><span·class="p">.</span><span·class="w"> |
| 244 | » </span><span·class="p"·data-group-id=" | 244 | » </span><span·class="p"·data-group-id="8957714857-12"><<</span><span·class="mi">67</span><span·class="p">,</span><span·class="mi">44</span><span·class="p">,</span><span·class="mi">216</span><span·class="p">,</span><span·class="mi">166</span><span·class="p">,</span><span·class="mi">25</span><span·class="p">,</span><span·class="mi">130</span><span·class="p">,</span><span·class="mi">203</span><span·class="p">,</span><span·class="mi">5</span><span·class="p">,</span><span·class="mi">66</span><span·class="p">,</span><span·class="mi">6</span><span·class="p">,</span><span·class="mi">162</span><span·class="p">,</span><span·class="mi">16</span><span·class="p">,</span><span·class="mi">79</span><span·class="p">,</span><span·class="mi">94</span><span·class="p">,</span><span·class="mi">115</span><span·class="p">,</span><span·class="mi">234</span><span·class="p">,</span><span·class="w"> |
| 245 | » </span><span·class="mi">197</span><span·class="p">,</span><span·class="mi">94</span><span·class="p">,</span><span·class="mi">253</span><span·class="p">,</span><span·class="mi">16</span><span·class="p">,</span><span·class="mi">144</span><span·class="p">,</span><span·class="mi">151</span><span·class="p">,</span><span·class="mi">41</span><span·class="p"·data-group-id=" | 245 | » </span><span·class="mi">197</span><span·class="p">,</span><span·class="mi">94</span><span·class="p">,</span><span·class="mi">253</span><span·class="p">,</span><span·class="mi">16</span><span·class="p">,</span><span·class="mi">144</span><span·class="p">,</span><span·class="mi">151</span><span·class="p">,</span><span·class="mi">41</span><span·class="p"·data-group-id="8957714857-12">>></span><span·class="w"> |
| 246 | » </span><span·class="mi">5</span><span·class="o">></span></code></pre><p>The·<code·class="inline">[<<"First·bytes">>,<<"Second·bytes">>]</code>·could·of·course·have·been·one | 246 | » </span><span·class="mi">5</span><span·class="o">></span></code></pre><p>The·<code·class="inline">[<<"First·bytes">>,<<"Second·bytes">>]</code>·could·of·course·have·been·one |
| 247 | single·binary:·<code·class="inline"><<"First·bytesSecond·bytes">></code>.</p><h3·id="example-of-crypto_one_time_aead-6"·class="section-heading"> | 247 | single·binary:·<code·class="inline"><<"First·bytesSecond·bytes">></code>.</p><h3·id="example-of-crypto_one_time_aead-6"·class="section-heading"> |
| 248 | ··<a·href="#example-of-crypto_one_time_aead-6"·class="hover-link"> | 248 | ··<a·href="#example-of-crypto_one_time_aead-6"·class="hover-link"> |
| 249 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 249 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 250 | ··</a> | 250 | ··</a> |
| 251 | ··<span·class="text">Example·of·crypto_one_time_aead/6</span> | 251 | ··<span·class="text">Example·of·crypto_one_time_aead/6</span> |
| 252 | </h3> | 252 | </h3> |
| 253 | <p>The·same·example·as·in·the | 253 | <p>The·same·example·as·in·the |
| 254 | <a·href="new_api.html#example-of-crypto_one_time-5">previous·section</a>,·but·now·with·one | 254 | <a·href="new_api.html#example-of-crypto_one_time-5">previous·section</a>,·but·now·with·one |
| 255 | call·to·<a·href="crypto.html#crypto_one_time_aead/6">crypto_one_time_aead/6</a>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">» </span><span·class="mi">1</span><span·class="o">></span><span·class="w">·</span><span·class="n">Key</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 255 | call·to·<a·href="crypto.html#crypto_one_time_aead/6">crypto_one_time_aead/6</a>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">» </span><span·class="mi">1</span><span·class="o">></span><span·class="w">·</span><span·class="n">Key</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="4911566223-1"><<</span><span·class="mi">1</span><span·class="p">:</span><span·class="mi">128</span><span·class="p"·data-group-id="4911566223-1">>></span><span·class="p">.</span><span·class="w"> |
| 256 | » </span><span·class="p"·data-group-id=" | 256 | » </span><span·class="p"·data-group-id="4911566223-2"><<</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·[·...·truncated·by·diffoscope;·len:·574,·SHA:·0034f0f7ab23615377cd2756eddb3fda34177dac8c889cd2883d87859fbdc675·...·]-2">>></span><span·class="w"> |
| 257 | » </span><span·class="mi">2</span><span·class="o">></span><span·class="w">·</span><span·class="n">IV</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 257 | » </span><span·class="mi">2</span><span·class="o">></span><span·class="w">·</span><span·class="n">IV</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="4911566223-3"><<</span><span·class="mi">0</span><span·class="p">:</span><span·class="mi">128</span><span·class="p"·data-group-id="4911566223-3">>></span><span·class="p">.</span><span·class="w"> |
| 258 | » </span><span·class="p"·data-group-id=" | 258 | » </span><span·class="p"·data-group-id="4911566223-4"><<</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·[·...·truncated·by·diffoscope;·len:·574,·SHA:·434e1652aeb79cb3aa8e21ad1827c9b07eb4f9317c24ec080e4a6cccb33ec4d6·...·]-4">>></span><span·class="w"> |
| 259 | » </span><span·class="mi">3</span><span·class="o">></span><span·class="w">·</span><span·class="n">Txt</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 259 | » </span><span·class="mi">3</span><span·class="o">></span><span·class="w">·</span><span·class="n">Txt</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="4911566223-5">[</span><span·class="p"·data-group-id="4911566223-6"><<</span><span·class="s">"First·bytes"</span><span·class="p"·data-group-id="4911566223-6">>></span><span·class="p">,</span><span·class="p"·data-group-id="4911566223-7"[·...·truncated·by·diffoscope;·len:·164,·SHA:·2fc2c09fe5bd752ddcc82785e88c870480df5dbc80da7f9e41b3b49db79fcb67·...·]-5">]</span><span·class="p">.</span><span·class="w"> |
| 260 | » </span><span·class="p"·data-group-id=" | 260 | » </span><span·class="p"·data-group-id="4911566223-8">[</span><span·class="p"·data-group-id="4911566223-9"><<</span><span·class="s">"First·bytes"</span><span·class="p"·data-group-id="4911566223-9">>></span><span·class="p">,</span><span·class="p"·data-group-id="4911566223-10[·...·truncated·by·diffoscope;·len:·166,·SHA:·b095d01e83d175a57e24d58c342fc5b1891cf55bb102dccadfc1d719c9b42dac·...·]-8">]</span><span·class="w"> |
| 261 | » </span><span·class="mi">4</span><span·class="o">></span><span·class="w">·</span><span·class="n">AAD</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 261 | » </span><span·class="mi">4</span><span·class="o">></span><span·class="w">·</span><span·class="n">AAD</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="4911566223-11"><<</span><span·class="s">"Some·additional·auth·data"</span><span·class="p"·data-group-id="4911566223-11">>></span><span·class="p">.</span><span·class="w"> |
| 262 | » </span><span·class="p"·data-group-id=" | 262 | » </span><span·class="p"·data-group-id="4911566223-12"><<</span><span·class="s">"Some·additional·auth·data"</span><span·class="p"·data-group-id="4911566223-12">>></span><span·class="w"> |
| 263 | » </span><span·class="mi">5</span><span·class="o">></span><span·class="w">·</span><span·class="nc">crypto</span><span·class="p">:</span><span·class="nf">crypto_one_time_aead</span><span·class="p"·data-group-id=" | 263 | » </span><span·class="mi">5</span><span·class="o">></span><span·class="w">·</span><span·class="nc">crypto</span><span·class="p">:</span><span·class="nf">crypto_one_time_aead</span><span·class="p"·data-group-id="4911566223-13">(</span><span·class="ss">aes_128_gcm</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Key</span><span·class="p">,</span><span·class="w">·</span><span·class="n">IV</span><span·class="p">,</span><span·class="w">·</span><sp[·...·truncated·by·diffoscope;·len:·214,·SHA:·73ed6e7c907dd88ee4bbc05b923fafb0a5dc0fe0501c706b8b63c9c8b92644ae·...·]-13">)</span><span·class="p">.</span><span·class="w"> |
| 264 | » </span><span·class="p"·data-group-id=" | 264 | » </span><span·class="p"·data-group-id="4911566223-14">{</span><span·class="p"·data-group-id="4911566223-15"><<</span><span·class="mi">240</span><span·class="p">,</span><span·class="mi">130</span><span·class="p">,</span><span·class="mi">38</span><span·class="p">,</span><span·class="mi">96</span><span·class="p">,</span><span·class="mi">130</span><span·class="p">,</span><span·class="mi">241</span><span·class="p">,</span><span·class="mi">189</span><span·class="p">,</span><span·class="mi">52</span><span·class="p">,</span><span·class="mi">3</span><span·class="p">,</span><span·class="mi">190</span><span·class="p">,</span><span·class="mi">179</span><span·class="p">,</span><span·class="mi">213</span><span·class="p">,</span><span·class="mi">132</span><span·class="p">,</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">72</span><span·class="p">,</span><span·class="w"> |
| 265 | » </span><span·class="mi">192</span><span·class="p">,</span><span·class="mi">103</span><span·class="p">,</span><span·class="mi">176</span><span·class="p">,</span><span·class="mi">90</span><span·class="p">,</span><span·class="mi">104</span><span·class="p">,</span><span·class="mi">15</span><span·class="p">,</span><span·class="mi">71</span><span·class="p">,</span><span·class="mi">158</span><span·class="p"·data-group-id=" | 265 | » </span><span·class="mi">192</span><span·class="p">,</span><span·class="mi">103</span><span·class="p">,</span><span·class="mi">176</span><span·class="p">,</span><span·class="mi">90</span><span·class="p">,</span><span·class="mi">104</span><span·class="p">,</span><span·class="mi">15</span><span·class="p">,</span><span·class="mi">71</span><span·class="p">,</span><span·class="mi">158</span><span·class="p"·data-group-id="4911566223-15">>></span><span·class="p">,</span><span·class="w"> |
| 266 | » </span><span·class="p"·data-group-id=" | 266 | » </span><span·class="p"·data-group-id="4911566223-16"><<</span><span·class="mi">131</span><span·class="p">,</span><span·class="mi">47</span><span·class="p">,</span><span·class="mi">45</span><span·class="p">,</span><span·class="mi">91</span><span·class="p">,</span><span·class="mi">142</spa[·...·truncated·by·diffoscope;·len:·657,·SHA:·7fb46988980dafe9d7789725b62e13a4820e51429d2d3844eb1cc09e766f6407·...·]-14">}</span><span·class="w"> |
| 267 | » </span><span·class="mi">6</span><span·class="o">></span></code></pre><p>The·<code·class="inline">[<<"First·bytes">>,<<"Second·bytes">>]</code>·could·of·course·have·been·one | 267 | » </span><span·class="mi">6</span><span·class="o">></span></code></pre><p>The·<code·class="inline">[<<"First·bytes">>,<<"Second·bytes">>]</code>·could·of·course·have·been·one |
| 268 | single·binary:·<code·class="inline"><<"First·bytesSecond·bytes">></code>.</p><h3·id="example-of-mac_init-mac_update-and-mac_final"·class="section-heading"> | 268 | single·binary:·<code·class="inline"><<"First·bytesSecond·bytes">></code>.</p><h3·id="example-of-mac_init-mac_update-and-mac_final"·class="section-heading"> |
| 269 | ··<a·href="#example-of-mac_init-mac_update-and-mac_final"·class="hover-link"> | 269 | ··<a·href="#example-of-mac_init-mac_update-and-mac_final"·class="hover-link"> |
| 270 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 270 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 271 | ··</a> | 271 | ··</a> |
| 272 | ··<span·class="text">Example·of·mac_init·mac_update·and·mac_final</span> | 272 | ··<span·class="text">Example·of·mac_init·mac_update·and·mac_final</span> |
| 273 | </h3> | 273 | </h3> |
| 274 | <pre><code·class="makeup·erlang"·translate="no"><span·class="w">» </span><span·class="mi">1</span><span·class="o">></span><span·class="w">·</span><span·class="n">Key</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 274 | <pre><code·class="makeup·erlang"·translate="no"><span·class="w">» </span><span·class="mi">1</span><span·class="o">></span><span·class="w">·</span><span·class="n">Key</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="0555016513-1"><<</span><span·class="mi">1</span><span·class="p">:</span><span·class="mi">128</span><span·class="p"·data-group-id="0555016513-1">>></span><span·class="p">.</span><span·class="w"> |
| 275 | » </span><span·class="p"·data-group-id=" | 275 | » </span><span·class="p"·data-group-id="0555016513-2"><<</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·[·...·truncated·by·diffoscope;·len:·574,·SHA:·8a6accf03f9d9a437d518a605e4e94de69bd1e8901ed148ec5275324a7c7734e·...·]-2">>></span><span·class="w"> |
| 276 | » </span><span·class="mi">2</span><span·class="o">></span><span·class="w">·</span><span·class="n">StateMac</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">crypto</span><span·class="p">:</span><span·class="nf">mac_init</span><span·class="p"·data-group-id=" | 276 | » </span><span·class="mi">2</span><span·class="o">></span><span·class="w">·</span><span·class="n">StateMac</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">crypto</span><span·class="p">:</span><span·class="nf">mac_init</span><span·class="p"·data-group-id="0555016513-3">(</span><span·class="ss">cmac</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">aes_128_cbc</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Key</span><span·class="p"·data-group-id="0555016513-3">)</span><span·class="p">.</span><span·class="w"> |
| 277 | » </span><span·class="p">#</span><span·class="n">Ref</span><span·class="o"><</span><span·class="mf">0.2424664121</span><span·class="p">.</span><span·class="mf">2781478916.232610</span><span·class="o">></span><span·class="w"> | 277 | » </span><span·class="p">#</span><span·class="n">Ref</span><span·class="o"><</span><span·class="mf">0.2424664121</span><span·class="p">.</span><span·class="mf">2781478916.232610</span><span·class="o">></span><span·class="w"> |
| 278 | » </span><span·class="mi">3</span><span·class="o">></span><span·class="w">·</span><span·class="nc">crypto</span><span·class="p">:</span><span·class="nf">mac_update</span><span·class="p"·data-group-id=" | 278 | » </span><span·class="mi">3</span><span·class="o">></span><span·class="w">·</span><span·class="nc">crypto</span><span·class="p">:</span><span·class="nf">mac_update</span><span·class="p"·data-group-id="0555016513-4">(</span><span·class="n">StateMac</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0555016513-5"><<</span><span·class="s">"First·bytes"</span><span·class="p"·data-group-id="0555016513-5">>[·...·truncated·by·diffoscope;·len:·52,·SHA:·ca9074b15f5d0618d49abc034391d5c110ce87a75efd197be5170230da7a66cf·...·]-4">)</span><span·class="p">.</span><span·class="w"> |
| 279 | » </span><span·class="p">#</span><span·class="n">Ref</span><span·class="o"><</span><span·class="mf">0.2424664121</span><span·class="p">.</span><span·class="mf">2781478916.232610</span><span·class="o">></span><span·class="w"> | 279 | » </span><span·class="p">#</span><span·class="n">Ref</span><span·class="o"><</span><span·class="mf">0.2424664121</span><span·class="p">.</span><span·class="mf">2781478916.232610</span><span·class="o">></span><span·class="w"> |
| 280 | » </span><span·class="mi">4</span><span·class="o">></span><span·class="w">·</span><span·class="nc">crypto</span><span·class="p">:</span><span·class="nf">mac_update</span><span·class="p"·data-group-id=" | 280 | » </span><span·class="mi">4</span><span·class="o">></span><span·class="w">·</span><span·class="nc">crypto</span><span·class="p">:</span><span·class="nf">mac_update</span><span·class="p"·data-group-id="0555016513-6">(</span><span·class="n">StateMac</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"·"</span><span·class="p"·data-group-id="0555016513-6">)</span><span·class="p">.</span><span·class="w"> |
| 281 | » </span><span·class="p">#</span><span·class="n">Ref</span><span·class="o"><</span><span·class="mf">0.2424664121</span><span·class="p">.</span><span·class="mf">2781478916.232610</span><span·class="o">></span><span·class="w"> | 281 | » </span><span·class="p">#</span><span·class="n">Ref</span><span·class="o"><</span><span·class="mf">0.2424664121</span><span·class="p">.</span><span·class="mf">2781478916.232610</span><span·class="o">></span><span·class="w"> |
| 282 | » </span><span·class="mi">5</span><span·class="o">></span><span·class="w">·</span><span·class="nc">crypto</span><span·class="p">:</span><span·class="nf">mac_update</span><span·class="p"·data-group-id=" | 282 | » </span><span·class="mi">5</span><span·class="o">></span><span·class="w">·</span><span·class="nc">crypto</span><span·class="p">:</span><span·class="nf">mac_update</span><span·class="p"·data-group-id="0555016513-7">(</span><span·class="n">StateMac</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0555016513-8"><<</span><span·class="s">"last·bytes"</span><span·class="p"·data-group-id="0555016513-8">>&[·...·truncated·by·diffoscope;·len:·51,·SHA:·9b60e80ef48e8f93cc8b3201281fc7ac988987f5d328e5832e3fa8c604f934fa·...·]-7">)</span><span·class="p">.</span><span·class="w"> |
| 283 | » </span><span·class="p">#</span><span·class="n">Ref</span><span·class="o"><</span><span·class="mf">0.2424664121</span><span·class="p">.</span><span·class="mf">2781478916.232610</span><span·class="o">></span><span·class="w"> | 283 | » </span><span·class="p">#</span><span·class="n">Ref</span><span·class="o"><</span><span·class="mf">0.2424664121</span><span·class="p">.</span><span·class="mf">2781478916.232610</span><span·class="o">></span><span·class="w"> |
| 284 | » </span><span·class="mi">6</span><span·class="o">></span><span·class="w">·</span><span·class="nc">crypto</span><span·class="p">:</span><span·class="nf">mac_final</span><span·class="p"·data-group-id=" | 284 | » </span><span·class="mi">6</span><span·class="o">></span><span·class="w">·</span><span·class="nc">crypto</span><span·class="p">:</span><span·class="nf">mac_final</span><span·class="p"·data-group-id="0555016513-9">(</span><span·class="n">StateMac</span><span·class="p"·data-group-id="0555016513-9">)</span><span·class="p">.</span><span·class="w"> |
| 285 | » </span><span·class="p"·data-group-id=" | 285 | » </span><span·class="p"·data-group-id="0555016513-10"><<</span><span·class="mi">68</span><span·class="p">,</span><span·class="mi">191</span><span·class="p">,</span><span·class="mi">219</span><span·class="p">,</span><span·class="mi">128</span><span·class="p">,</span><span·class="mi">84</span><span·class="p">,</span><span·class="mi">77</span><span·class="p">,</span><span·class="mi">11</span><span·class="p">,</span><span·class="mi">193</span><span·class="p">,</span><span·class="mi">197</span><span·class="p">,</span><span·class="mi">238</span><span·class="p">,</span><span·class="mi">107</span><span·class="p">,</span><span·class="mi">6</span><span·class="p">,</span><span·class="mi">214</span><span·class="p">,</span><span·class="mi">141</span><span·class="p">,</span><span·class="mi">160</span><span·class="p">,</span><span·class="w"> |
| 286 | » </span><span·class="mi">249</span><span·class="p"·data-group-id=" | 286 | » </span><span·class="mi">249</span><span·class="p"·data-group-id="0555016513-10">>></span><span·class="w"> |
| 287 | » </span><span·class="mi">7</span><span·class="o">></span></code></pre><p>and·compare·the·result·with·a·single·calculation·just·for·this·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">» </span><span·class="mi">7</span><span·class="o">></span><span·class="w">·</span><span·class="nc">crypto</span><span·class="p">:</span><span·class="nf">mac</span><span·class="p"·data-group-id=" | 287 | » </span><span·class="mi">7</span><span·class="o">></span></code></pre><p>and·compare·the·result·with·a·single·calculation·just·for·this·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">» </span><span·class="mi">7</span><span·class="o">></span><span·class="w">·</span><span·class="nc">crypto</span><span·class="p">:</span><span·class="nf">mac</span><span·class="p"·data-group-id="1474941275-1">(</span><span·class="ss">cmac</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">aes_128_cbc</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Key</span><span·class="p">,</span><span·class="w">·</span><[·...·truncated·by·diffoscope;·len:·97,·SHA:·397277bac0499218ab7a03eb028b8c60f79a1495a6606d61423f451812f2a81f·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 288 | » </span><span·class="p"·data-group-id=" | 288 | » </span><span·class="p"·data-group-id="1474941275-2"><<</span><span·class="mi">68</span><span·class="p">,</span><span·class="mi">191</span><span·class="p">,</span><span·class="mi">219</span><span·class="p">,</span><span·class="mi">128</span><span·class="p">,</span><span·class="mi">84</span><span·class="p">,</span><span·class="mi">77</span><span·class="p">,</span><span·class="mi">11</span><span·class="p">,</span><span·class="mi">193</span><span·class="p">,</span><span·class="mi">197</span><span·class="p">,</span><span·class="mi">238</span><span·class="p">,</span><span·class="mi">107</span><span·class="p">,</span><span·class="mi">6</span><span·class="p">,</span><span·class="mi">214</span><span·class="p">,</span><span·class="mi">141</span><span·class="p">,</span><span·class="mi">160</span><span·class="p">,</span><span·class="w"> |
| 289 | » </span><span·class="mi">249</span><span·class="p"·data-group-id=" | 289 | » </span><span·class="mi">249</span><span·class="p"·data-group-id="1474941275-2">>></span><span·class="w"> |
| 290 | » </span><span·class="mi">8</span><span·class="o">></span><span·class="w">·</span><span·class="nf">v</span><span·class="p"·data-group-id=" | 290 | » </span><span·class="mi">8</span><span·class="o">></span><span·class="w">·</span><span·class="nf">v</span><span·class="p"·data-group-id="1474941275-3">(</span><span·class="mi">7</span><span·class="p"·data-group-id="1474941275-3">)</span><span·class="w">·</span><span·class="o">==</span><span·class="w">·</span><span·class="nf">v</span><span·class="p"·data-group-id="1474941275-4">(</span><span[·...·truncated·by·diffoscope;·len:·61,·SHA:·f86af2591bf4c0c42bbd913eab3c7cb68592d5675a69ee7a1a5ec2637b909c97·...·]-4">)</span><span·class="p">.</span><span·class="w"> |
| 291 | » </span><span·class="ss">true</span><span·class="w"> | 291 | » </span><span·class="ss">true</span><span·class="w"> |
| 292 | » </span><span·class="mi">9</span><span·class="o">></span></code></pre><h2·id="retired-cipher-names"·class="section-heading"> | 292 | » </span><span·class="mi">9</span><span·class="o">></span></code></pre><h2·id="retired-cipher-names"·class="section-heading"> |
| 293 | ··<a·href="#retired-cipher-names"·class="hover-link"> | 293 | ··<a·href="#retired-cipher-names"·class="hover-link"> |
| 294 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 294 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 295 | ··</a> | 295 | ··</a> |
| 296 | ··<span·class="text">Retired·cipher·names</span> | 296 | ··<span·class="text">Retired·cipher·names</span> |
| 297 | </h2> | 297 | </h2> |
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| 345 | ······</p> | 345 | ······</p> |
| 346 | <p>Copyright·©·1996-202 | 346 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 347 | ····</footer> | 347 | ····</footer> |
| 348 | ··</div> | 348 | ··</div> |
| 349 | </main> | 349 | </main> |
| 350 | </div> | 350 | </div> |
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| 2254 | <p>Copyright·©·1996-202 | 2254 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 2255 | ····</footer> | 2255 | ····</footer> |
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| 146 | <p>Copyright·©·1996-202 | 146 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 147 | ····</footer> | 147 | ····</footer> |
| 148 | ··</div> | 148 | ··</div> |
| 149 | </main> | 149 | </main> |
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| 148 | <p>Copyright·©·1996-202 | 148 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 149 | ····</footer> | 149 | ····</footer> |
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| 153 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 153 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 204 | <p>Copyright·©·1996-202 | 204 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 336 | ········Built·using | 336 | ········Built·using |
| 337 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 337 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 338 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 338 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 339 | ······</p> | 339 | ······</p> |
| 340 | <p>Copyright·©·1996-202 | 340 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 341 | ····</footer> | 341 | ····</footer> |
| 342 | ··</div> | 342 | ··</div> |
| 343 | </main> | 343 | </main> |
| 344 | </div> | 344 | </div> |
| 345 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 345 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 346 | ··<script> | 346 | ··<script> |
| 347 | ··let·initialized·=·false; | 347 | ··let·initialized·=·false; |
| Offset 160, 20 lines modified | Offset 160, 20 lines modified | ||
| 160 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 160 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 161 | ··</a> | 161 | ··</a> |
| 162 | ··<span·class="text">Executable·Lines</span> | 162 | ··<span·class="text">Executable·Lines</span> |
| 163 | </h3> | 163 | </h3> |
| 164 | <p>To·have·an·effect,·a·breakpoint·must·be·set·at·an·<em>executable·line</em>,·which·is·a | 164 | <p>To·have·an·effect,·a·breakpoint·must·be·set·at·an·<em>executable·line</em>,·which·is·a |
| 165 | line·of·code·containing·an·executable·expression·such·as·a·matching·or·a | 165 | line·of·code·containing·an·executable·expression·such·as·a·matching·or·a |
| 166 | function·call.·A·blank·line·or·a·line·containing·a·comment,·function·head,·or | 166 | function·call.·A·blank·line·or·a·line·containing·a·comment,·function·head,·or |
| 167 | pattern·in·a·<code·class="inline">case</code>·statement·or·<code·class="inline">receive</code>·statement·is·not·executable.</p><p>In·the·following·example,·lines·2,·4,·6,·8,·and·11·are·executable·lines:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="mi">1</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">is_loaded</span><span·class="p"·data-group-id=" | 167 | pattern·in·a·<code·class="inline">case</code>·statement·or·<code·class="inline">receive</code>·statement·is·not·executable.</p><p>In·the·following·example,·lines·2,·4,·6,·8,·and·11·are·executable·lines:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="mi">1</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">is_loaded</span><span·class="p"·data-group-id="6715392617-1">(</span><span·class="n">Module</span><span·class="p">,</span><span·class="n">Compiled</span><span·class="p"·data-group-id="6715392617-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 168 | </span><span·class="mi">2</span><span·class="p">:</span><span·class="w">···</span><span·class="k">case</span><span·class="w">·</span><span·class="nf">get_file</span><span·class="p"·data-group-id=" | 168 | </span><span·class="mi">2</span><span·class="p">:</span><span·class="w">···</span><span·class="k">case</span><span·class="w">·</span><span·class="nf">get_file</span><span·class="p"·data-group-id="6715392617-2">(</span><span·class="n">Module</span><span·class="p">,</span><span·class="n">Compiled</span><span·class="p"·data-group-id="6715392617-2">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 169 | </span><span·class="mi">3</span><span·class="p">:</span><span·class="w">·····</span><span·class="p"·data-group-id=" | 169 | </span><span·class="mi">3</span><span·class="p">:</span><span·class="w">·····</span><span·class="p"·data-group-id="6715392617-3">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="n">File</span><span·class="p"·data-group-id="6715392617-3">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 170 | </span><span·class="mi">4</span><span·class="p">:</span><span·class="w">·······</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">code</span><span·class="p">:</span><span·class="nf">which</span><span·class="p"·data-group-id=" | 170 | </span><span·class="mi">4</span><span·class="p">:</span><span·class="w">·······</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">code</span><span·class="p">:</span><span·class="nf">which</span><span·class="p"·data-group-id="6715392617-4">(</span><span·class="n">Module</span><span·class="p"·data-group-id="6715392617-4">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 171 | </span><span·class="mi">5</span><span·class="p">:</span><span·class="w">·········</span><span·class="o">?</span><span·class="n">TAG</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 171 | </span><span·class="mi">5</span><span·class="p">:</span><span·class="w">·········</span><span·class="o">?</span><span·class="n">TAG</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 172 | </span><span·class="mi">6</span><span·class="p">:</span><span·class="w">···········</span><span·class="p"·data-group-id=" | 172 | </span><span·class="mi">6</span><span·class="p">:</span><span·class="w">···········</span><span·class="p"·data-group-id="6715392617-5">{</span><span·class="ss">loaded</span><span·class="p">,</span><span·class="n">File</span><span·class="p"·data-group-id="6715392617-5">}</span><span·class="p">;</span><span·class="w"> |
| 173 | </span><span·class="mi">7</span><span·class="p">:</span><span·class="w">·········</span><span·class="p">_</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 173 | </span><span·class="mi">7</span><span·class="p">:</span><span·class="w">·········</span><span·class="p">_</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 174 | </span><span·class="mi">8</span><span·class="p">:</span><span·class="w">···········</span><span·class="ss">unloaded</span><span·class="w"> | 174 | </span><span·class="mi">8</span><span·class="p">:</span><span·class="w">···········</span><span·class="ss">unloaded</span><span·class="w"> |
| 175 | </span><span·class="mi">9</span><span·class="p">:</span><span·class="w">·······</span><span·class="k">end</span><span·class="p">;</span><span·class="w"> | 175 | </span><span·class="mi">9</span><span·class="p">:</span><span·class="w">·······</span><span·class="k">end</span><span·class="p">;</span><span·class="w"> |
| 176 | </span><span·class="mi">10</span><span·class="p">:</span><span·class="w">····</span><span·class="ss">false</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 176 | </span><span·class="mi">10</span><span·class="p">:</span><span·class="w">····</span><span·class="ss">false</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 177 | </span><span·class="mi">11</span><span·class="p">:</span><span·class="w">······</span><span·class="ss">false</span><span·class="w"> | 177 | </span><span·class="mi">11</span><span·class="p">:</span><span·class="w">······</span><span·class="ss">false</span><span·class="w"> |
| 178 | </span><span·class="mi">12</span><span·class="p">:</span><span·class="w">··</span><span·class="k">end</span><span·class="p">.</span></code></pre><h3·id="status-and-trigger-action"·class="section-heading"> | 178 | </span><span·class="mi">12</span><span·class="p">:</span><span·class="w">··</span><span·class="k">end</span><span·class="p">.</span></code></pre><h3·id="status-and-trigger-action"·class="section-heading"> |
| 179 | ··<a·href="#status-and-trigger-action"·class="hover-link"> | 179 | ··<a·href="#status-and-trigger-action"·class="hover-link"> |
| Offset 204, 21 lines modified | Offset 204, 21 lines modified | ||
| 204 | returns·<code·class="inline">true</code>,·the·process·stops.·If·the·function·call·returns·<code·class="inline">false</code>,·the | 204 | returns·<code·class="inline">true</code>,·the·process·stops.·If·the·function·call·returns·<code·class="inline">false</code>,·the |
| 205 | breakpoint·is·silently·ignored.</p><p><code·class="inline">Bindings</code>·is·a·list·of·variable·bindings.·To·retrieve·the·value·of·<code·class="inline">Variable</code> | 205 | breakpoint·is·silently·ignored.</p><p><code·class="inline">Bindings</code>·is·a·list·of·variable·bindings.·To·retrieve·the·value·of·<code·class="inline">Variable</code> |
| 206 | (given·as·an·atom),·use·function | 206 | (given·as·an·atom),·use·function |
| 207 | <a·href="int.html#get_binding/2"><code·class="inline">int:get_binding(Variable,·Bindings)</code></a>.·The·function | 207 | <a·href="int.html#get_binding/2"><code·class="inline">int:get_binding(Variable,·Bindings)</code></a>.·The·function |
| 208 | returns·<code·class="inline">unbound</code>·or·<code·class="inline">{value,Value}</code>.</p><p><img·src="assets/cond_break_dialog.jpg"·alt="Conditional·Break·Dialog·Window"·title="Conditional·Break·Dialog·Window"/></p><p>Right-click·the·<em>Module</em>·entry·to·open·a·popup·menu·from·which·the·appropriate | 208 | returns·<code·class="inline">unbound</code>·or·<code·class="inline">{value,Value}</code>.</p><p><img·src="assets/cond_break_dialog.jpg"·alt="Conditional·Break·Dialog·Window"·title="Conditional·Break·Dialog·Window"/></p><p>Right-click·the·<em>Module</em>·entry·to·open·a·popup·menu·from·which·the·appropriate |
| 209 | module·can·be·selected.</p><p><em>Example:</em></p><p>A·conditional·breakpoint·calling·<code·class="inline">c_test:c_break/1</code>·is·added·at·line·6·in·module | 209 | module·can·be·selected.</p><p><em>Example:</em></p><p>A·conditional·breakpoint·calling·<code·class="inline">c_test:c_break/1</code>·is·added·at·line·6·in·module |
| 210 | <code·class="inline">fact</code>.·Each·time·the·breakpoint·is·reached,·the·function·is·called.·When·<code·class="inline">N</code>·is | 210 | <code·class="inline">fact</code>.·Each·time·the·breakpoint·is·reached,·the·function·is·called.·When·<code·class="inline">N</code>·is |
| 211 | equal·to·3,·the·function·returns·<code·class="inline">true</code>·and·the·process·stops.</p><p>Extract·from·<code·class="inline">fact.erl</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="mi">5</span><span·class="p">.</span><span·class="w">·</span><span·class="nf">fac</span><span·class="p"·data-group-id=" | 211 | equal·to·3,·the·function·returns·<code·class="inline">true</code>·and·the·process·stops.</p><p>Extract·from·<code·class="inline">fact.erl</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="mi">5</span><span·class="p">.</span><span·class="w">·</span><span·class="nf">fac</span><span·class="p"·data-group-id="5877235807-1">(</span><span·class="mi">0</span><span·class="p"·data-group-id="5877235807-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="mi">1</span><span·class="p">;</span><span·class="w"> |
| 212 | </span><span·class="mi">6</span><span·class="p">.</span><span·class="w">·</span><span·class="nf">fac</span><span·class="p"·data-group-id=" | 212 | </span><span·class="mi">6</span><span·class="p">.</span><span·class="w">·</span><span·class="nf">fac</span><span·class="p"·data-group-id="5877235807-2">(</span><span·class="n">N</span><span·class="p"·data-group-id="5877235807-2">)</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><span·class="n">N</span><span·class="w">·</span><span·class="o">></span><span·c[·...·truncated·by·diffoscope;·len:·961,·SHA:·4970d6687f3c89cbb7c336be25a7e74e167baac70f4aaa5a6d10d9492152db12·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 213 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 213 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="4579081231-2">(</span><span·class="p"·data-group-id="4579081231-3">[</span><span·class="ss">c_break</span><span·class="p">/</span><span·class="mi">1</span><span·class="p"·data-group-id="4579081231-3">]</span><span·class="p"·data-group-id="4579081231-2">)</span><span·class="p">.</span><span·class="w"> |
| 214 | </span><span·class="nf">c_break</span><span·class="p"·data-group-id=" | 214 | </span><span·class="nf">c_break</span><span·class="p"·data-group-id="4579081231-4">(</span><span·class="n">Bindings</span><span·class="p"·data-group-id="4579081231-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 215 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">int</span><span·class="p">:</span><span·class="nf">get_binding</span><span·class="p"·data-group-id=" | 215 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">int</span><span·class="p">:</span><span·class="nf">get_binding</span><span·class="p"·data-group-id="4579081231-5">(</span><span·class="ss">'N'</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Bindings</span><span·class="p"·data-group-id="4579081231-5">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 216 | ········</span><span·class="p"·data-group-id=" | 216 | ········</span><span·class="p"·data-group-id="4579081231-6">{</span><span·class="ss">value</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">3</span><span·class="p"·data-group-id="4579081231-6">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 217 | ············</span><span·class="ss">true</span><span·class="p">;</span><span·class="w"> | 217 | ············</span><span·class="ss">true</span><span·class="p">;</span><span·class="w"> |
| 218 | ········</span><span·class="p">_</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 218 | ········</span><span·class="p">_</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 219 | ············</span><span·class="ss">false</span><span·class="w"> | 219 | ············</span><span·class="ss">false</span><span·class="w"> |
| 220 | ····</span><span·class="k">end</span><span·class="p">.</span></code></pre><h3·id="function-breakpoints"·class="section-heading"> | 220 | ····</span><span·class="k">end</span><span·class="p">.</span></code></pre><h3·id="function-breakpoints"·class="section-heading"> |
| 221 | ··<a·href="#function-breakpoints"·class="hover-link"> | 221 | ··<a·href="#function-breakpoints"·class="hover-link"> |
| 222 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 222 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 223 | ··</a> | 223 | ··</a> |
| Offset 231, 20 lines modified | Offset 231, 20 lines modified | ||
| 231 | ··<a·href="#stack-trace"·class="hover-link"> | 231 | ··<a·href="#stack-trace"·class="hover-link"> |
| 232 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 232 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 233 | ··</a> | 233 | ··</a> |
| 234 | ··<span·class="text">Stack·Trace</span> | 234 | ··<span·class="text">Stack·Trace</span> |
| 235 | </h2> | 235 | </h2> |
| 236 | <p>The·Erlang·emulator·keeps·track·of·a·<em>stack·trace</em>,·information·about·recent | 236 | <p>The·Erlang·emulator·keeps·track·of·a·<em>stack·trace</em>,·information·about·recent |
| 237 | function·calls.·This·information·is·used·if·an·error·occurs,·for·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="k">catch</span><span·class="w">·</span><span·class="ss">a</span><span·class="o">+</span><span·class="mi">1</span><span·class="p">.</span><span·class="w"> | 237 | function·calls.·This·information·is·used·if·an·error·occurs,·for·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="k">catch</span><span·class="w">·</span><span·class="ss">a</span><span·class="o">+</span><span·class="mi">1</span><span·class="p">.</span><span·class="w"> |
| 238 | </span><span·class="p"·data-group-id=" | 238 | </span><span·class="p"·data-group-id="8213585709-1">{</span><span·class="ss">'EXIT'</span><span·class="p">,</span><span·class="p"·data-group-id="8213585709-2">{</span><span·class="ss">badarith</span><span·class="p">,</span><span·class="p"·data-group-id="8213585709-3">[</span><span·clas[·...·truncated·by·diffoscope;·len:·507,·SHA:·f70f61aeaa942e1e64bfa22efd867d9d22b556f742532844427b6ed2ab15f765·...·]-4">}</span><span·class="p">,</span><span·class="w"> |
| 239 | ···················</span><span·class="p"·data-group-id=" | 239 | ···················</span><span·class="p"·data-group-id="8213585709-7">{</span><span·class="ss">erl_eval</span><span·class="p">,</span><span·class="ss">do_apply</span><span·class="p">,</span><span·class="mi">6</span><span·class="p">,</span><span·class="p"·data-group-id="8213585709-8">[</span><span·class="p"·data[·...·truncated·by·diffoscope;·len:·490,·SHA:·eb121433313750d6f29e60965f234ea5822004e696cb9d732a0ea62ff25e353c·...·]-7">}</span><span·class="p">,</span><span·class="w"> |
| 240 | ···················</span><span·class="p"·data-group-id="4994662491-11">{</span><span·class="ss">erl_eval</span><span·class="p">,</span><span·class="ss">expr</span><span·class="p">,</span><span·class="mi">5</span><span·class="p">,</span><span·class="p"·data-group-id="4994662491-12">[</span><span·class="p"·data-group-id="4994662491-13">{</span><span·class="ss">file</span><span·class="p">,</span><span·class="s">"erl_eval.erl"</span><span·class="p"·data-group-id="4994662491-13">}</span><span·class="p">,</span><span·class="p"·data-group-id="4994662491-14">{</span><span·class="ss">line</span><span·class="p">,</span><span·class="mi">357</span><span·class="p"·data-group-id="4994662491-14">}</span><span·class="p"·data-group-id="4994662491-12">]</span><span·class="p"·data-group-id="4994662491-11">}</span><span·class="p">,</span><span·class="w"> | ||
| 241 | ···················</span><span·class="p"·data-group-id="4994662491-15">{</span><span·class="ss">shell</span><span·class="p">,</span><span·class="ss">exprs</span><span·class="p">,</span><span·class="mi">7</span><span·class="p">,</span><span·class="p"·data-group-id="4994662491-16">[</span><span·class="p"·data-group-id="4994662491-17">{</span><span·class="ss">file</span><span·class="p">,</span><span·class="s">"shell.erl"</span><span·class="p"·data-group-id="4994662491-17">}</span><span·class="p">,</span><span·class="p"·data-group-id="4994662491-18">{</span><span·class="ss">line</span><span·class="p">,</span><span·class="mi">674</span><span·class="p"·data-group-id="4994662491-18">}</span><span·class="p"·data-group-id="4994662491-16">]</span><span·class="p"·data-group-id="4994662491-15">}</span><span·class="p">,</span><span·class="w"> | ||
| 242 | ···················</span><span·class="p"·data-group-id="4994662491-19">{</span><span·class="ss">shell</span><span·class="p">,</span><span·class="ss">eval_exprs</span><span·class="p">,</span><span·class="mi">7</span><span·class="p">,</span><span·class="p"·data-group-id="4994662491-20">[</span><span·class="p"·data-group-id="4994662491-21">{</span><span·class="ss">file</span><span·class="p">,</span><span·class="s">"shell.erl"</span><span·class="p"·data-group-id="4994662491-21">}</span><span·class="p">,</span><span·class="p"·data-group-id="4994662491-22">{</span><span·class="ss">line</span><span·class="p">,</span><span·class="mi">629</span><span·class="p"·data-group-id="4994662491-22">}</span><span·class="p"·data-group-id="4994662491-20">]</span><span·class="p"·data-group-id="4994662491-19">}</span><span·class="p">,</span><span·class="w"> | ||
| 243 | ···················</span><span·class="p"·data-group-id=" | 240 | ···················</span><span·class="p"·data-group-id="8213585709-11">{</span><span·class="ss">erl_eval</span><span·class="p">,</span><span·class="ss">expr</span><span·class="p">,</span><span·class="mi">5</span><span·class="p">,</span><span·class="p"·data-group-id="8213585709-12">[</span><span·class="p"·data-g[·...·truncated·by·diffoscope;·len:·544,·SHA:·dde448ed64f5119a7dde3f14afdec3c4b1a22cc0eb42c5e7e065992f18272d10·...·] |
| 241 | ···················</span><span·class="p"·data-group-id="8213585709-15">{</span><span·class="ss">shell</span><span·class="p">,</span><span·class="ss">exprs</span><span·class="p">,</span><span·class="mi">7</span><span·class="p">,</span><span·class="p"·data-group-id="8213585709-16">[</span><span·class="p"·data-group-id="8213585709-17">{</span><span·class="ss">file</span><span·class="p">,</span><span·class="s">"shell.erl"</span><span·class="p"·data-group-id="8213585709-17">}</span><span·class="p">,</span><span·class="p"·data-group-id="8213585709-18">{</span><span·class="ss">line</span><span·class="p">,</span><span·class="mi">674</span><span·class="p"·data-group-id="8213585709-18">}</span><span·class="p"·data-group-id="8213585709-16">]</span><span·class="p"·data-group-id="8213585709-15">}</span><span·class="p">,</span><span·class="w"> | ||
| 242 | ···················</span><span·class="p"·data-group-id="8213585709-19">{</span><span·class="ss">shell</span><span·class="p">,</span><span·class="ss">eval_exprs</span><span·class="p">,</span><span·class="mi">7</span><span·class="p">,</span><span·class="p"·data-group-id="8213585709-20">[</span><span·class="p"·data-group-id="8213585709-21">{</span><span·class="ss">file</span><span·class="p">,</span><span·class="s">"shell.erl"</span><span·class="p"·data-group-id="8213585709-21">}</span><span·class="p">,</span><span·class="p"·data-group-id="8213585709-22">{</span><span·class="ss">line</span><span·class="p">,</span><span·class="mi">629</span><span·class="p"·data-group-id="8213585709-22">}</span><span·class="p"·data-group-id="8213585709-20">]</span><span·class="p"·data-group-id="8213585709-19">}</span><span·class="p">,</span><span·class="w"> | ||
| 243 | ···················</span><span·class="p"·data-group-id="8213585709-23">{</span><span·class="ss">shell</span><span·class="p">,</span><span·class="ss">eval_loop</span><span·class="p">,</span><span·class="mi">3</span><span·class="p">,</span><span·class="p"·data-group-id="8213585709-24">[</span><span·class="p"·data-group-id="8213585709-25">{</span><span·class="ss">file</span><span·class="p">,</span><span·class="s">"shell.erl"</span><span·class="p"·data-group-id="8213585709-25">}</span><span·class="p">,</span><span·class="p"·data-group-id="8213585709-26">{</span><span·class="ss">line</span><span·class="p">,</span><span·class="mi">614</span><span·class="p"·data-group-id="8213585709-26">}</span><span·class="p"·data-group-id="8213585709-24">]</span><span·class="p"·data-group-id="8213585709-23">}</span><span·class="p"·data-group-id="8213585709-3">]</span><span·class="p"·data-group-id="8213585709-2">}</span><span·class="p"·data-group-id="8213585709-1">}</span></code></pre><p>For·details·about·the·stack·trace,·see·section | ||
| 244 | <a·href="../../../../doc/system/errors.html">Errors·and·Error·Handling</a>·in·the·Erlang·Reference | 244 | <a·href="../../../../doc/system/errors.html">Errors·and·Error·Handling</a>·in·the·Erlang·Reference |
| 245 | Manual.</p><p>Debugger·emulates·the·stack·trace·by·keeping·track·of·recently·called | 245 | Manual.</p><p>Debugger·emulates·the·stack·trace·by·keeping·track·of·recently·called |
| 246 | interpreted·functions.·(The·real·stack·trace·cannot·be·used,·as·it·shows·which | 246 | interpreted·functions.·(The·real·stack·trace·cannot·be·used,·as·it·shows·which |
| 247 | functions·of·Debugger·have·been·called,·rather·than·which·interpreted | 247 | functions·of·Debugger·have·been·called,·rather·than·which·interpreted |
| 248 | functions.)</p><p>This·information·can·be·used·to·traverse·the·chain·of·function·calls,·using·the | 248 | functions.)</p><p>This·information·can·be·used·to·traverse·the·chain·of·function·calls,·using·the |
| 249 | <em>Up</em>·and·<em>Down</em>·buttons·in·the | 249 | <em>Up</em>·and·<em>Down</em>·buttons·in·the |
| 250 | <a·href="debugger_chapter.html#attach">Attach·Process·window</a>.</p><p>By·default,·Debugger·only·saves·information·about·recursive·function·calls,·that | 250 | <a·href="debugger_chapter.html#attach">Attach·Process·window</a>.</p><p>By·default,·Debugger·only·saves·information·about·recursive·function·calls,·that |
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| 543 | ······<p·class="built-using"> | 543 | ······<p·class="built-using"> |
| 544 | ········Built·using | 544 | ········Built·using |
| 545 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 545 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 546 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 546 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 547 | ······</p> | 547 | ······</p> |
| 548 | <p>Copyright·©·1996-202 | 548 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 549 | ····</footer> | 549 | ····</footer> |
| 550 | ··</div> | 550 | ··</div> |
| 551 | </main> | 551 | </main> |
| 552 | </div> | 552 | </div> |
| 553 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 553 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 554 | ··<script> | 554 | ··<script> |
| 555 | ··let·initialized·=·false; | 555 | ··let·initialized·=·false; |
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| 130 | ····<section·id="moduledoc"> | 130 | ····<section·id="moduledoc"> |
| 131 | <p>Debugger/Interpreter·Interface.</p><p>The·<code·class="inline">i</code>·module·provides·short·forms·for·some·of·the·functions·used·by·the | 131 | <p>Debugger/Interpreter·Interface.</p><p>The·<code·class="inline">i</code>·module·provides·short·forms·for·some·of·the·functions·used·by·the |
| 132 | graphical·Debugger·and·some·of·the·functions·in·module·<a·href="int.html"><code·class="inline">int</code></a>,·the·Erlang | 132 | graphical·Debugger·and·some·of·the·functions·in·module·<a·href="int.html"><code·class="inline">int</code></a>,·the·Erlang |
| 133 | interpreter.</p><p>This·module·also·provides·facilities·for·displaying·status·information·about | 133 | interpreter.</p><p>This·module·also·provides·facilities·for·displaying·status·information·about |
| 134 | interpreted·processes·and·break·points.</p><p>It·is·possible·to·attach·to·interpreted·processes·by·only·giving·the·corresponding | 134 | interpreted·processes·and·break·points.</p><p>It·is·possible·to·attach·to·interpreted·processes·by·only·giving·the·corresponding |
| 135 | process·identity.·By·default,·an·attachment·window·is·displayed.·Processes | 135 | process·identity.·By·default,·an·attachment·window·is·displayed.·Processes |
| 136 | at·other·Erlang·nodes·can·be·attached·manually·or·automatically.</p><p>The·functions·in·this·module·are·defined·in·the·Erlang·shell.·That·is, | 136 | at·other·Erlang·nodes·can·be·attached·manually·or·automatically.</p><p>The·functions·in·this·module·are·defined·in·the·Erlang·shell.·That·is, |
| 137 | they·can·be·called·without·the·<code·class="inline">i:</code>·prefix.·For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nf">ii</span><span·class="p"·data-group-id=" | 137 | they·can·be·called·without·the·<code·class="inline">i:</code>·prefix.·For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nf">ii</span><span·class="p"·data-group-id="1777166574-1">(</span><span·class="ss">t</span><span·class="p"·data-group-id="1777166574-1">)</span><span·class="p">.</span><span·class="w"> |
| 138 | </span><span·class="p"·data-group-id=" | 138 | </span><span·class="p"·data-group-id="1777166574-2">{</span><span·class="ss">module</span><span·class="p">,</span><span·class="ss">t</span><span·class="p"·data-group-id="1777166574-2">}</span><span·class="gp·unselectable"> |
| 139 | 2>·</span><span·class="nf">iaa</span><span·class="p"·data-group-id=" | 139 | 2>·</span><span·class="nf">iaa</span><span·class="p"·data-group-id="1777166574-3">(</span><span·class="p"·data-group-id="1777166574-4">[</span><span·class="ss">init</span><span·class="p"·data-group-id="1777166574-4">]</span><span·class="p"·data-group-id="1777166574-3">)</span><span·class="p">.</span><span·class="w"> |
| 140 | </span><span·class="ss">true</span></code></pre> | 140 | </span><span·class="ss">true</span></code></pre> |
| 141 | ····</section> | 141 | ····</section> |
| 142 | </div> | 142 | </div> |
| 143 | ··<section·id="summary"·class="details-list"> | 143 | ··<section·id="summary"·class="details-list"> |
| 144 | ····<h1·class="section-heading"> | 144 | ····<h1·class="section-heading"> |
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| 1288 | ······<p·class="built-using"> | 1288 | ······<p·class="built-using"> |
| 1289 | ········Built·using | 1289 | ········Built·using |
| 1290 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1290 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1291 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1291 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1292 | ······</p> | 1292 | ······</p> |
| 1293 | <p>Copyright·©·1996-202 | 1293 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1294 | ····</footer> | 1294 | ····</footer> |
| 1295 | ··</div> | 1295 | ··</div> |
| 1296 | </main> | 1296 | </main> |
| 1297 | </div> | 1297 | </div> |
| 1298 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1298 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1299 | ··<script> | 1299 | ··<script> |
| 1300 | ··let·initialized·=·false; | 1300 | ··let·initialized·=·false; |
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| 670 | ·························Args·::·[<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>()].</pre> | 670 | ·························Args·::·[<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>()].</pre> |
| 671 | ······</div> | 671 | ······</div> |
| 672 | <p>Sets·when·and·how·to·attach·automatically·to·a·process·executing·code | 672 | <p>Sets·when·and·how·to·attach·automatically·to·a·process·executing·code |
| 673 | in·interpreted·modules.</p><p>By·default·when·the·interpreter·is·started,·automatic·attach·is·disabled.</p><p>If·<code·class="inline">Flags</code>·is·an·empty·list,·automatic·attach·is·disabled.</p><p>Otherwise·<code·class="inline">Flags</code>·should·be·a·list·containing··at·least·one·of·the·following | 673 | in·interpreted·modules.</p><p>By·default·when·the·interpreter·is·started,·automatic·attach·is·disabled.</p><p>If·<code·class="inline">Flags</code>·is·an·empty·list,·automatic·attach·is·disabled.</p><p>Otherwise·<code·class="inline">Flags</code>·should·be·a·list·containing··at·least·one·of·the·following |
| 674 | flags:</p><ul><li><code·class="inline">init</code>·-·Attach·when·a·process·for·the·first·time·calls·an·interpreted | 674 | flags:</p><ul><li><code·class="inline">init</code>·-·Attach·when·a·process·for·the·first·time·calls·an·interpreted |
| 675 | function.</li><li><code·class="inline">break</code>·-·Attach·whenever·a·process·reaches·a·breakpoint.</li><li><code·class="inline">exit</code>·-·Attach·when·a·process·terminates.</li></ul><p>When·the·specified·event·occurs,·the·function·<code·class="inline">Function</code>·is·called·as:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">spawn</span><span·class="p"·data-group-id="5 | 675 | function.</li><li><code·class="inline">break</code>·-·Attach·whenever·a·process·reaches·a·breakpoint.</li><li><code·class="inline">exit</code>·-·Attach·when·a·process·terminates.</li></ul><p>When·the·specified·event·occurs,·the·function·<code·class="inline">Function</code>·is·called·as:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">spawn</span><span·class="p"·data-group-id="5029576403-1">(</span><span·class="n">Module</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Name</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="5029576403-2">[</span><span·class="n">Pid</span><spa[·...·truncated·by·diffoscope;·len:·188,·SHA:·a774b9b57cf82e1c573a57c6652f5e03f4802ebdd3394a32a2c0c9ced66cad64·...·]3-1">)</span></code></pre><p><code·class="inline">Pid</code>·is·the·pid·of·the·process·executing·interpreted·code.</p> |
| 676 | ··</section> | 676 | ··</section> |
| 677 | </section> | 677 | </section> |
| 678 | <section·class="detail"·id="break/2"> | 678 | <section·class="detail"·id="break/2"> |
| 679 | ··<div·class="detail-header"> | 679 | ··<div·class="detail-header"> |
| 680 | ····<a·href="#break/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 680 | ····<a·href="#break/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 681 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 681 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
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| 1399 | ······<p·class="built-using"> | 1399 | ······<p·class="built-using"> |
| 1400 | ········Built·using | 1400 | ········Built·using |
| 1401 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1401 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1402 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1402 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1403 | ······</p> | 1403 | ······</p> |
| 1404 | <p>Copyright·©·1996-202 | 1404 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1405 | ····</footer> | 1405 | ····</footer> |
| 1406 | ··</div> | 1406 | ··</div> |
| 1407 | </main> | 1407 | </main> |
| 1408 | </div> | 1408 | </div> |
| 1409 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1409 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1410 | ··<script> | 1410 | ··<script> |
| 1411 | ··let·initialized·=·false; | 1411 | ··let·initialized·=·false; |
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| 188 | ······<p·class="built-using"> | 188 | ······<p·class="built-using"> |
| 189 | ········Built·using | 189 | ········Built·using |
| 190 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 190 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 191 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 191 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 192 | ······</p> | 192 | ······</p> |
| 193 | <p>Copyright·©·1996-202 | 193 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 194 | ····</footer> | 194 | ····</footer> |
| 195 | ··</div> | 195 | ··</div> |
| 196 | </main> | 196 | </main> |
| 197 | </div> | 197 | </div> |
| 198 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 198 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 199 | ··<script> | 199 | ··<script> |
| 200 | ··let·initialized·=·false; | 200 | ··let·initialized·=·false; |
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| 139 | </h3> | 139 | </h3> |
| 140 | <ul><li><p>Error·handling·has·been·improved·when·modules·fail·to·load.</p><p>Own·Id:·OTP-19484·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/7819"·title="">GH-7819</a>,·<a·href="https://github.com/erlang/otp/pull/9399"·title="">PR-9399</a></p></li></ul><h3·id="improvements-and-new-features"·class="section-heading"> | 140 | <ul><li><p>Error·handling·has·been·improved·when·modules·fail·to·load.</p><p>Own·Id:·OTP-19484·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/7819"·title="">GH-7819</a>,·<a·href="https://github.com/erlang/otp/pull/9399"·title="">PR-9399</a></p></li></ul><h3·id="improvements-and-new-features"·class="section-heading"> |
| 141 | ··<a·href="#improvements-and-new-features"·class="hover-link"> | 141 | ··<a·href="#improvements-and-new-features"·class="hover-link"> |
| 142 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 142 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 143 | ··</a> | 143 | ··</a> |
| 144 | ··<span·class="text">Improvements·and·New·Features</span> | 144 | ··<span·class="text">Improvements·and·New·Features</span> |
| 145 | </h3> | 145 | </h3> |
| 146 | <ul><li><p>Comprehensions·have·been·extended·with·zip·generators··according·to·<a·href="https://www.erlang.org/eeps/eep-0073">EEP·73</a>.·</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="p"·data-group-id="7584483659-1">[</span><span·class="n">A</span><span·class="o">+</span><span·class="n">B</span><span·class="w">·</span><span·class="p">||</span><span·class="w">·</span><span·class="n">A</span><span·class="w">·</span><span·class="o"><-</span><span·class="w">·</span><span·class="p"·data-group-id="7584483659-2">[</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">2</span><span·class="p">,</span><span·class="mi">3</span><span·class="p"·data-group-id="7584483659-2">]</span><span·class="w">·</span><span·class="p">&&</span><span·class="w">·</span><span·class="n">B</span><span·class="w">·</span><span·class="o"><-</span><span·class="w">·</span><span·class="p"·data-group-id="7584483659-3">[</span><span·class="mi">4</span><span·class="p">,</span><span·class="mi">5</span><span·class="p">,</span><span·class="mi">6</span><span·class="p"·data-group-id="7584483659-3">]</span><span·class="p"·data-group-id="7584483659-1">]</span><span·class="p">.</span><span·class="w"> | ||
| 147 | < | 146 | <ul><li><p>Comprehensions·have·been·extended·with·zip·generators··according·to·<a·href="https://www.erlang.org/eeps/eep-0073">EEP·73</a>.·</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·cla[·...·truncated·by·diffoscope;·len:·1021,·SHA:·eed1a34e03ffc98e3a6bded9e70ba96fb1b4b2a6edf39dfae30b0b6a6bcc426c·...·] |
| 147 | </span><span·class="p"·data-group-id="9654361427-4">[</span><span·class="mi">5</span><span·class="p">,</span><span·class="mi">7</span><span·class="p">,</span><span·class="mi">9</span><span·class="p"·data-group-id="9654361427-4">]</span></code></pre><p>Own·Id:·OTP-19184·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8926"·title="">PR-8926</a></p></li><li><p>New·strict·generators·have·been·added·for·comprehensions.</p><p>The·currently·existing·generators·are·"relaxed":·they·ignore·terms·in·the | ||
| 148 | right-hand·side·expression·that·do·not·match·the·left-hand·side·pattern.</p><p>The·new·strict·generators·fail·with·exception·<code·class="inline">badmatch</code>·if·a·pattern·doesn't·match.</p><p>Examples:</p><p>Using·the·current·relaxed·generator·operator·<code·class="inline"><-</code>,·any·element·not·matching | 148 | right-hand·side·expression·that·do·not·match·the·left-hand·side·pattern.</p><p>The·new·strict·generators·fail·with·exception·<code·class="inline">badmatch</code>·if·a·pattern·doesn't·match.</p><p>Examples:</p><p>Using·the·current·relaxed·generator·operator·<code·class="inline"><-</code>,·any·element·not·matching |
| 149 | the·pattern·<code·class="inline">{_,_}</code>·will·be·silently·discarded:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="p"·data-group-id="5102762390-1">[</span><span·class="n">T</span><span·class="w">·</span><span·class="p">||</span><span·class="w">·</span><span·class="p"·data-group-id="5102762390-2">{</span><span·class="p">_</span><span·class="p">,</span><span·class="p">_</span><span·class="p"·data-group-id="5102762390-2">}</span><span·class="o">=</span><span·class="n">T</span><span·class="w">·</span><span·class="o"><-</span><span·class="w">·</span><span·class="p"·data-group-id="5102762390-3">[</span><span·class="p"·data-group-id="5102762390-4">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="mi">1</span><span·class="p"·data-group-id="5102762390-4">}</span><span·class="p">,</span><span·class="ss">ok</span><span·class="p">,</span><span·class="p"·data-group-id="5102762390-5">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="mi">2</span><span·class="p"·data-group-id="5102762390-5">}</span><span·class="p"·data-group-id="5102762390-3">]</span><span·class="p"·data-group-id="5102762390-1">]</span><span·class="p">.</span><span·class="w"> | ||
| 150 | 149 | the·pattern·<code·class="inline">{_,_}</code>·will·be·silently·discarded:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="p"·data-group-id="1699026412-1">[</span><span·class="n">T</span><span·class[·...·truncated·by·diffoscope;·len:·1002,·SHA:·56275c1276f93443b76b1c7318003d511fb71db46469b2e8a6286953ed752135·...·] | |
| 150 | </span><span·class="p"·data-group-id="1699026412-6">[</span><span·class="p"·data-group-id="1699026412-7">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="mi">1</span><span·class="p"·data-group-id="1699026412-7">}</span><span·class="p">,</span><span·class="p"·data-group-id="1699026412-8">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="mi">2</span><span·class="p"·data-group-id="1699026412-8">}</span><span·class="p"·data-group-id="1699026412-6">]</span></code></pre><p>If·the·intention·is·that·all·lists·processed·by·a·list·comprehension·must·only | ||
| 151 | contain·tuples·of·size·two,·using·the·new·strict·version·of·the·operator·ensures | 151 | contain·tuples·of·size·two,·using·the·new·strict·version·of·the·operator·ensures |
| 152 | that·term·not·matching·will·cause·a·crash:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">2>·</span><span·class="p"·data-group-id=" | 152 | that·term·not·matching·will·cause·a·crash:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">2>·</span><span·class="p"·data-group-id="0995150837-1">[</span><span·class="n">T</span><span·class="w">·</span><span·class="p">||</span><span·class="w">·</span><span·class="p"·data-group-id="0995150837-2">{</span><span·class="p">_</span><span·class="p">,</span><span·class="p">_</span><span·class=[·...·truncated·by·diffoscope;·len:·752,·SHA:·601ede2fc1db8e9c940eb1d370a1eb0f010f5702158f8d33cb0c11441330f1f7·...·]-1">]</span><span·class="p">.</span><span·class="w"> |
| 153 | </span><span·class="gt">**·exception·error:·no·match·of·right·hand·side·value·ok</span></code></pre><p>Using·the·strict·generator·operator·to·mark·the·intention·that·all·list·elements·must·match·the·pattern·could·help·finding·mistakes·quicker·if·something·unpexected·is·added·to·the·list·processed·by·the·generator.</p><p>The·strict·version·for·bitstring·generators·is·<code·class="inline"><:=</code>.</p><p>Own·Id:·OTP-19317·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8625"·title="">PR-8625</a></p></li><li><p>The·license·and·copyright·header·has·changed·format·to·include·an·<code·class="inline">SPDX-License-Identifier</code>.·At·the·same·time,·most·files·have·been·updated·to·follow·a·uniform·standard·for·license·headers.</p><p>Own·Id:·OTP-19575·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9670"·title="">PR-9670</a></p></li></ul><h2·id="debugger-5-5"·class="section-heading"> | 153 | </span><span·class="gt">**·exception·error:·no·match·of·right·hand·side·value·ok</span></code></pre><p>Using·the·strict·generator·operator·to·mark·the·intention·that·all·list·elements·must·match·the·pattern·could·help·finding·mistakes·quicker·if·something·unpexected·is·added·to·the·list·processed·by·the·generator.</p><p>The·strict·version·for·bitstring·generators·is·<code·class="inline"><:=</code>.</p><p>Own·Id:·OTP-19317·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8625"·title="">PR-8625</a></p></li><li><p>The·license·and·copyright·header·has·changed·format·to·include·an·<code·class="inline">SPDX-License-Identifier</code>.·At·the·same·time,·most·files·have·been·updated·to·follow·a·uniform·standard·for·license·headers.</p><p>Own·Id:·OTP-19575·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9670"·title="">PR-9670</a></p></li></ul><h2·id="debugger-5-5"·class="section-heading"> |
| 154 | ··<a·href="#debugger-5-5"·class="hover-link"> | 154 | ··<a·href="#debugger-5-5"·class="hover-link"> |
| 155 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 155 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 156 | ··</a> | 156 | ··</a> |
| 157 | ··<span·class="text">Debugger·5.5</span> | 157 | ··<span·class="text">Debugger·5.5</span> |
| 158 | </h2> | 158 | </h2> |
| 159 | <h3·id="fixed-bugs-and-malfunctions-1"·class="section-heading"> | 159 | <h3·id="fixed-bugs-and-malfunctions-1"·class="section-heading"> |
| 160 | ··<a·href="#fixed-bugs-and-malfunctions-1"·class="hover-link"> | 160 | ··<a·href="#fixed-bugs-and-malfunctions-1"·class="hover-link"> |
| 161 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 161 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 162 | ··</a> | 162 | ··</a> |
| 163 | ··<span·class="text">Fixed·Bugs·and·Malfunctions</span> | 163 | ··<span·class="text">Fixed·Bugs·and·Malfunctions</span> |
| 164 | </h3> | 164 | </h3> |
| 165 | <ul><li><p>Defining·a·fun·in·the·shell·using·the·syntax·<code·class="inline">fun·Name/Arity</code>·would·fail.·This·has·been·corrected·so·that·the·following·now·works:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">F</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="k">fun</span><span·class="w">·</span><span·class="nb">is_atom</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">.</span><span·class="w"> | 165 | <ul><li><p>Defining·a·fun·in·the·shell·using·the·syntax·<code·class="inline">fun·Name/Arity</code>·would·fail.·This·has·been·corrected·so·that·the·following·now·works:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">F</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="k">fun</span><span·class="w">·</span><span·class="nb">is_atom</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">.</span><span·class="w"> |
| 166 | </span><span·class="p">#</span><span·class="n">Fun</span><span·class="p">.</span><span·class="ss">erl</span><span·class="p">.</span><span·class="mf">42.18682967</span><span·class="o">></span><span·class="gp·unselectable"> | 166 | </span><span·class="p">#</span><span·class="n">Fun</span><span·class="p">.</span><span·class="ss">erl</span><span·class="p">.</span><span·class="mf">42.18682967</span><span·class="o">></span><span·class="gp·unselectable"> |
| 167 | >·</span><span·class="n">F</span><span·class="p"·data-group-id=" | 167 | >·</span><span·class="n">F</span><span·class="p"·data-group-id="9400165184-1">(</span><span·class="ss">a</span><span·class="p"·data-group-id="9400165184-1">)</span><span·class="p">.</span><span·class="w"> |
| 168 | </span><span·class="ss">true</span><span·class="gp·unselectable"> | 168 | </span><span·class="ss">true</span><span·class="gp·unselectable"> |
| 169 | 3>·</span><span·class="n">Id</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="k">fun</span><span·class="w">·</span><span·class="ss">id</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">.</span><span·class="w"> | 169 | 3>·</span><span·class="n">Id</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="k">fun</span><span·class="w">·</span><span·class="ss">id</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">.</span><span·class="w"> |
| 170 | </span><span·class="p">#</span><span·class="n">Fun</span><span·class="p">.</span><span·class="ss">erl</span><span·class="p">.</span><span·class="mf">42.18682967</span><span·class="o">></span><span·class="gp·unselectable"> | 170 | </span><span·class="p">#</span><span·class="n">Fun</span><span·class="p">.</span><span·class="ss">erl</span><span·class="p">.</span><span·class="mf">42.18682967</span><span·class="o">></span><span·class="gp·unselectable"> |
| 171 | 4>·</span><span·class="n">Id</span><span·class="p"·data-group-id=" | 171 | 4>·</span><span·class="n">Id</span><span·class="p"·data-group-id="9400165184-2">(</span><span·class="mi">42</span><span·class="p"·data-group-id="9400165184-2">)</span><span·class="p">.</span><span·class="w"> |
| 172 | </span><span·class="gt">**·exception·error:·undefined·shell·command·id/1</span><span·class="gp·unselectable"> | 172 | </span><span·class="gt">**·exception·error:·undefined·shell·command·id/1</span><span·class="gp·unselectable"> |
| 173 | 5>·</span><span·class="nf">id</span><span·class="p"·data-group-id=" | 173 | 5>·</span><span·class="nf">id</span><span·class="p"·data-group-id="9400165184-3">(</span><span·class="n">I</span><span·class="p"·data-group-id="9400165184-3">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">I</span><span·class="p">.</span><span·class="w"> |
| 174 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> | 174 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> |
| 175 | 6>·</span><span·class="n">Id</span><span·class="p"·data-group-id=" | 175 | 6>·</span><span·class="n">Id</span><span·class="p"·data-group-id="9400165184-4">(</span><span·class="mi">42</span><span·class="p"·data-group-id="9400165184-4">)</span><span·class="p">.</span><span·class="w"> |
| 176 | </span><span·class="mi">42</span></code></pre><p>The·Debugger·has·also·been·corrected·to·correctly·handle·this·syntax·for·a·BIF.</p><p>Own·Id:·OTP-19322·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/8963"·title="">GH-8963</a>,·<a·href="https://github.com/erlang/otp/pull/8987"·title="">PR-8987</a></p></li></ul><h3·id="improvements-and-new-features-1"·class="section-heading"> | 176 | </span><span·class="mi">42</span></code></pre><p>The·Debugger·has·also·been·corrected·to·correctly·handle·this·syntax·for·a·BIF.</p><p>Own·Id:·OTP-19322·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/8963"·title="">GH-8963</a>,·<a·href="https://github.com/erlang/otp/pull/8987"·title="">PR-8987</a></p></li></ul><h3·id="improvements-and-new-features-1"·class="section-heading"> |
| 177 | ··<a·href="#improvements-and-new-features-1"·class="hover-link"> | 177 | ··<a·href="#improvements-and-new-features-1"·class="hover-link"> |
| 178 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 178 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 179 | ··</a> | 179 | ··</a> |
| 180 | ··<span·class="text">Improvements·and·New·Features</span> | 180 | ··<span·class="text">Improvements·and·New·Features</span> |
| 181 | </h3> | 181 | </h3> |
| 182 | <ul><li><p>Erlang/OTP·type·specifications·has·been·updated·to·eliminate·overlapping·domains.</p><p>Own·Id:·OTP-19310·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/8810"·title="">GH-8810</a>,·<a·href="https://github.com/erlang/otp/issues/8821"·title="">GH-8821</a>,·<a·href="https://github.com/erlang/otp/pull/8986"·title="">PR-8986</a></p></li></ul><h2·id="debugger-5-4"·class="section-heading"> | 182 | <ul><li><p>Erlang/OTP·type·specifications·has·been·updated·to·eliminate·overlapping·domains.</p><p>Own·Id:·OTP-19310·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/8810"·title="">GH-8810</a>,·<a·href="https://github.com/erlang/otp/issues/8821"·title="">GH-8821</a>,·<a·href="https://github.com/erlang/otp/pull/8986"·title="">PR-8986</a></p></li></ul><h2·id="debugger-5-4"·class="section-heading"> |
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| 1018 | <p>Copyright·©·1996-202 | 1018 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1019 | ····</footer> | 1019 | ····</footer> |
| 1020 | ··</div> | 1020 | ··</div> |
| 1021 | </main> | 1021 | </main> |
| 1022 | </div> | 1022 | </div> |
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| 144 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 144 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 145 | ······</p> | 145 | ······</p> |
| 146 | <p>Copyright·©·1996-202 | 146 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 147 | ····</footer> | 147 | ····</footer> |
| 148 | ··</div> | 148 | ··</div> |
| 149 | </main> | 149 | </main> |
| 150 | </div> | 150 | </div> |
| 151 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 151 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 146 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 146 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 147 | ······</p> | 147 | ······</p> |
| 148 | <p>Copyright·©·1996-202 | 148 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 149 | ····</footer> | 149 | ····</footer> |
| 150 | ··</div> | 150 | ··</div> |
| 151 | </main> | 151 | </main> |
| 152 | </div> | 152 | </div> |
| 153 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 153 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 154 | ··<script> | 154 | ··<script> |
| 155 | ··let·initialized·=·false; | 155 | ··let·initialized·=·false; |
| Offset 181, 15 lines modified | Offset 181, 15 lines modified | ||
| 181 | ······<p·class="built-using"> | 181 | ······<p·class="built-using"> |
| 182 | ········Built·using | 182 | ········Built·using |
| 183 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 183 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 184 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 184 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 185 | ······</p> | 185 | ······</p> |
| 186 | <p>Copyright·©·1996-202 | 186 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 187 | ····</footer> | 187 | ····</footer> |
| 188 | ··</div> | 188 | ··</div> |
| 189 | </main> | 189 | </main> |
| 190 | </div> | 190 | </div> |
| 191 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 191 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 192 | ··<script> | 192 | ··<script> |
| 193 | ··let·initialized·=·false; | 193 | ··let·initialized·=·false; |
| Offset 266, 35 lines modified | Offset 266, 35 lines modified | ||
| 266 | the·value·is·a·list,·it·is·used·as·is.·If·it·is·not·a·list,·it·is·put·into·a | 266 | the·value·is·a·list,·it·is·used·as·is.·If·it·is·not·a·list,·it·is·put·into·a |
| 267 | list.</p><p>The·list·is·appended·to·any·options·given·to·<a·href="#run/1"><code·class="inline">run/1</code></a>·or·on·the·command·line.</p><p>The·list·can·be·retrieved·with·<a·href="../../../../lib/compiler-9.0/doc/html/compile.html#env_compiler_options/0"><code·class="inline">compile:env_compiler_options/0</code></a>.</p><p>Currently·the·only·option·used·is·the | 267 | list.</p><p>The·list·is·appended·to·any·options·given·to·<a·href="#run/1"><code·class="inline">run/1</code></a>·or·on·the·command·line.</p><p>The·list·can·be·retrieved·with·<a·href="../../../../lib/compiler-9.0/doc/html/compile.html#env_compiler_options/0"><code·class="inline">compile:env_compiler_options/0</code></a>.</p><p>Currently·the·only·option·used·is·the |
| 268 | <a·href="dialyzer.html#error_location"><code·class="inline">error_location</code></a>·option.</p><p><em>Dialyzer·configuration·file:</em></p><p>Dialyzer's·configuration·file·may·also·be·used·to·augment·the·default·options | 268 | <a·href="dialyzer.html#error_location"><code·class="inline">error_location</code></a>·option.</p><p><em>Dialyzer·configuration·file:</em></p><p>Dialyzer's·configuration·file·may·also·be·used·to·augment·the·default·options |
| 269 | and·those·given·directly·to·the·Dialyzer·command.·It·is·commonly·used·to·avoid | 269 | and·those·given·directly·to·the·Dialyzer·command.·It·is·commonly·used·to·avoid |
| 270 | repeating·options·which·would·otherwise·need·to·be·given·explicitly·to·Dialyzer | 270 | repeating·options·which·would·otherwise·need·to·be·given·explicitly·to·Dialyzer |
| 271 | on·every·invocation.</p><p>The·location·of·the·configuration·file·can·be·set·via·the·<code·class="inline">DIALYZER_CONFIG</code> | 271 | on·every·invocation.</p><p>The·location·of·the·configuration·file·can·be·set·via·the·<code·class="inline">DIALYZER_CONFIG</code> |
| 272 | environment·variable,·and·defaults·to·within·the·<code·class="inline">user_config</code>·from | 272 | environment·variable,·and·defaults·to·within·the·<code·class="inline">user_config</code>·from |
| 273 | <a·href="../../../../lib/stdlib-7.0/doc/html/filename.html#basedir/3"><code·class="inline">filename:basedir/3</code></a>.</p><p>An·example·configuration·file's·contents·might·be:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">······</span><span·class="p"·data-group-id="42 | 273 | <a·href="../../../../lib/stdlib-7.0/doc/html/filename.html#basedir/3"><code·class="inline">filename:basedir/3</code></a>.</p><p>An·example·configuration·file's·contents·might·be:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">······</span><span·class="p"·data-group-id="6642948787-1">{</span><span·class="ss">incremental</span><span·class="p">,</span><span·class="w"> |
| 274 | ········</span><span·class="p"·data-group-id="42 | 274 | ········</span><span·class="p"·data-group-id="6642948787-2">{</span><span·class="ss">default_apps</span><span·class="p">,</span><span·class="p"·data-group-id="6642948787-3">[</span><span·class="ss">stdlib</span><span·class="p">,</span><span·class="ss">kernel</span><span·class="p">,</span><span·class="[·...·truncated·by·diffoscope;·len:·109,·SHA:·a872be34860a6af0de6460cac6916000bd9c02cf80beb1dc9d89ca333299c808·...·]-2">}</span><span·class="p">,</span><span·class="w"> |
| 275 | ········</span><span·class="p"·data-group-id="42 | 275 | ········</span><span·class="p"·data-group-id="6642948787-4">{</span><span·class="ss">default_warning_apps</span><span·class="p">,</span><span·class="p"·data-group-id="6642948787-5">[</span><span·class="ss">stdlib</span><span·class="p"·data-group-id="6642948787-5">]</span><span·class="p"·data-group-id=[·...·truncated·by·diffoscope;·len:·11,·SHA:·ddf3cc87b1acd8f59f1d375d3750491dfc8bfefd30751d28d03b4a4efdbe3bc8·...·]-4">}</span><span·class="w"> |
| 276 | ······</span><span·class="p"·data-group-id="42 | 276 | ······</span><span·class="p"·data-group-id="6642948787-1">}</span><span·class="p">.</span><span·class="w"> |
| 277 | ······</span><span·class="p"·data-group-id="4278730270-6">{</span><span·class="ss">warnings</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4278730270-7">[</span><span·class="ss">no_improper_lists</span><span·class="p"·data-group-id="4278730270-7">]</span><span·class="p"·data-group-id="4278730270-6">}</span><span·class="p">.</span><span·class="w"> | ||
| 278 | ······</span><span·class="p"·data-group-id="42 | 277 | ······</span><span·class="p"·data-group-id="6642948787-6">{</span><span·class="ss">warnings</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6642948787-7">[</span><span·class="ss">no_improper_lists</span><span·class="p"·data-group-id="6642948787-7">]</span><span·c[·...·truncated·by·diffoscope;·len:·36,·SHA:·c72430a2e821110bf88fb319fce692df5d3286bc61b70fa2f008b22ffd8d8ccc·...·]">}</span><span·class="p">.</span><span·class="w"> |
| 278 | ······</span><span·class="p"·data-group-id="6642948787-8">{</span><span·class="ss">add_pathsa</span><span·class="p">,</span><span·class="p"·data-group-id="6642948787-9">[</span><span·class="s">"/users/samwise/potatoes/ebin"</span><span·class="p"·data-group-id="6642948787-9">]</span><span·class="p"·data-group-id="6642948787-8">}</span><span·class="p">.</span><span·class="w"> | ||
| 279 | ······</span><span·class="p"·data-group-id="42 | 279 | ······</span><span·class="p"·data-group-id="6642948787-10">{</span><span·class="ss">add_pathsz</span><span·class="p">,</span><span·class="p"·data-group-id="6642948787-11">[</span><span·class="s">"/users/smeagol/fish/ebin"</span><span·class="p"·data-group-id="6642948787-11">]</span><span·cl[·...·truncated·by·diffoscope;·len:·33,·SHA:·b425ec1981428be4a604706cb8067fd73a94c389bd007e9000f90b4dd74b4bb3·...·]-10">}</span><span·class="p">.</span></code></pre><p><a·href=""·id="suppression"></a></p><h2·id="module-requesting-or-suppressing-warnings-in-source-files"·class="section-heading"> |
| 280 | ··<a·href="#module-requesting-or-suppressing-warnings-in-source-files"·class="hover-link"> | 280 | ··<a·href="#module-requesting-or-suppressing-warnings-in-source-files"·class="hover-link"> |
| 281 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 281 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 282 | ··</a> | 282 | ··</a> |
| 283 | ··<span·class="text">Requesting·or·Suppressing·Warnings·in·Source·Files</span> | 283 | ··<span·class="text">Requesting·or·Suppressing·Warnings·in·Source·Files</span> |
| 284 | </h2> | 284 | </h2> |
| 285 | <p>Attribute·<code·class="inline">-dialyzer()</code>·can·be·used·for·turning·off·warnings·in·a·module·by | 285 | <p>Attribute·<code·class="inline">-dialyzer()</code>·can·be·used·for·turning·off·warnings·in·a·module·by |
| 286 | specifying·functions·or·warning·options.·For·example,·to·turn·off·all·warnings | 286 | specifying·functions·or·warning·options.·For·example,·to·turn·off·all·warnings |
| 287 | for·the·function·<code·class="inline">f/0</code>,·include·the·following·line:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">dialyzer</span><span·class="p"·data-group-id=" | 287 | for·the·function·<code·class="inline">f/0</code>,·include·the·following·line:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">dialyzer</span><span·class="p"·data-group-id="6496093842-1">(</span><span·class="p"·data-group-id="6496093842-2">{</span><span·class="ss">nowarn_function</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">f</span><span·class="p">/</span><span·class="mi">0</span><span·class="p"·data[·...·truncated·by·diffoscope;·len:·73,·SHA:·73b745a66013e885e5c2c29baae77d46ccd9d8f0e6d056f35cc76c3c6704eb05·...·]2-1">)</span><span·class="p">.</span></code></pre><p>To·turn·off·warnings·for·improper·lists,·add·the·following·line·to·the·source |
| 288 | file:</p><pre><code·class="text">-dialyzer(no_improper_lists).</code></pre><p>Attribute·<code·class="inline">-dialyzer()</code>·is·allowed·after·function·declarations.·Lists·of·warning | 288 | file:</p><pre><code·class="text">-dialyzer(no_improper_lists).</code></pre><p>Attribute·<code·class="inline">-dialyzer()</code>·is·allowed·after·function·declarations.·Lists·of·warning |
| 289 | options·or·functions·are·allowed:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">dialyzer</span><span·class="p"·data-group-id=" | 289 | options·or·functions·are·allowed:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">dialyzer</span><span·class="p"·data-group-id="5188840830-1">(</span><span·class="p"·data-group-id="5188840830-2">[</span><span·class="p"·data-group-id="5188840830-3">{</span><span·class="ss">nowarn_function</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="5188840830[·...·truncated·by·diffoscope;·len:·1867,·SHA:·08d814b34b5144ad569e04347459c0685f9fb4cf3b121e575fa506b9bc8c8a0e·...·]-1">)</span><span·class="p">.</span></code></pre><p>The·warning·option·for·underspecified·functions,·<code·class="inline">-Wunderspecs</code>,·can·result·in |
| 290 | useful·warnings,·but·often·functions·with·specifications·that·are·strictly·more | 290 | useful·warnings,·but·often·functions·with·specifications·that·are·strictly·more |
| 291 | allowing·than·the·success·typing·cannot·easily·be·modified·to·be·less·allowing. | 291 | allowing·than·the·success·typing·cannot·easily·be·modified·to·be·less·allowing. |
| 292 | To·turn·off·the·warning·for·underspecified·function·<code·class="inline">f/0</code>,·include·the·following | 292 | To·turn·off·the·warning·for·underspecified·function·<code·class="inline">f/0</code>,·include·the·following |
| 293 | line:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">dialyzer</span><span·class="p"·data-group-id=" | 293 | line:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">dialyzer</span><span·class="p"·data-group-id="2961171804-1">(</span><span·class="p"·data-group-id="2961171804-2">{</span><span·class="ss">no_underspecs</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">f</span><span·class="p">/</span><span·class="mi">0</span><span·class="p"·data-g[·...·truncated·by·diffoscope;·len:·72,·SHA:·71277fce74e2aad664713c413147af1c253d9bc96283fa2ddb3ada328dfde6a1·...·]-1">)</span><span·class="p">.</span></code></pre><p>For·help·on·the·warning·options,·use·<code·class="inline">dialyzer·-Whelp</code>.·The·options·are·also |
| 294 | enumerated,·see·type·<a·href="#t:warn_option/0"><code·class="inline">warn_option/0</code></a>.</p><p>Attribute·<code·class="inline">-dialyzer()</code>·can·also·be·used·for·turning·on·warnings.·For·example, | 294 | enumerated,·see·type·<a·href="#t:warn_option/0"><code·class="inline">warn_option/0</code></a>.</p><p>Attribute·<code·class="inline">-dialyzer()</code>·can·also·be·used·for·turning·on·warnings.·For·example, |
| 295 | if·a·module·has·been·fixed·regarding·unmatched·returns,·adding·the·following | 295 | if·a·module·has·been·fixed·regarding·unmatched·returns,·adding·the·following |
| 296 | line·can·help·in·assuring·that·no·new·unmatched·return·warnings·are·introduced:</p><pre><code·class="text">-dialyzer(unmatched_returns).</code></pre> | 296 | line·can·help·in·assuring·that·no·new·unmatched·return·warnings·are·introduced:</p><pre><code·class="text">-dialyzer(unmatched_returns).</code></pre> |
| 297 | ····</section> | 297 | ····</section> |
| 298 | </div> | 298 | </div> |
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| 854 | ······<p·class="built-using"> | 854 | ······<p·class="built-using"> |
| 855 | ········Built·using | 855 | ········Built·using |
| 856 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 856 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 857 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 857 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 858 | ······</p> | 858 | ······</p> |
| 859 | <p>Copyright·©·1996-202 | 859 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 860 | ····</footer> | 860 | ····</footer> |
| 861 | ··</div> | 861 | ··</div> |
| 862 | </main> | 862 | </main> |
| 863 | </div> | 863 | </div> |
| 864 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 864 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 865 | ··<script> | 865 | ··<script> |
| 866 | ··let·initialized·=·false; | 866 | ··let·initialized·=·false; |
| Offset 205, 37 lines modified | Offset 205, 37 lines modified | ||
| 205 | spec·is·invalid·with·respect·to·the·implementation.·However,·if·they·do·overlap, | 205 | spec·is·invalid·with·respect·to·the·implementation.·However,·if·they·do·overlap, |
| 206 | Dialyzer·will·proceed·under·the·assumption·that·the·correct·type·for·the·given | 206 | Dialyzer·will·proceed·under·the·assumption·that·the·correct·type·for·the·given |
| 207 | function·is·the·intersection·of·the·inferred·type·and·the·specified·type·(the | 207 | function·is·the·intersection·of·the·inferred·type·and·the·specified·type·(the |
| 208 | rationale·being·that·the·user·may·know·something·that·Dialyzer·itself·cannot | 208 | rationale·being·that·the·user·may·know·something·that·Dialyzer·itself·cannot |
| 209 | deduce).·One·implication·of·this·is·that·if·the·user·gives·a·spec·for·a·function | 209 | deduce).·One·implication·of·this·is·that·if·the·user·gives·a·spec·for·a·function |
| 210 | which·overlaps·with·Dialyzer's·inferred·type,·but·is·more·restrictive,·Dialyzer | 210 | which·overlaps·with·Dialyzer's·inferred·type,·but·is·more·restrictive,·Dialyzer |
| 211 | will·trust·those·restrictions.·This·may·then·generate·an·error·elsewhere·that | 211 | will·trust·those·restrictions.·This·may·then·generate·an·error·elsewhere·that |
| 212 | follows·from·the·erroneously·restricted·spec.</p><p><em>Examples:</em></p><p>Non-overlapping·argument:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">spec</span><span·class="w">·</span><span·class="nf">foo</span><span·class="p"·data-group-id=" | 212 | follows·from·the·erroneously·restricted·spec.</p><p><em>Examples:</em></p><p>Non-overlapping·argument:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">spec</span><span·class="w">·</span><span·class="nf">foo</span><span·class="p"·data-group-id="4316946992-1">(</span><span·class="nf">boolean</span><span·class="p"·data-group-id="4316946992-2">(</span><span·class="p"·data-group-id="4316946992-2">)</span><span·class="p"·data-group-id="4316946992-1">)</span><span·class="w">·</span><span·class="p">->[·...·truncated·by·diffoscope;·len:·155,·SHA:·0b670f15abf1beaa4d22a57c57dd9aaae5c332a7a62230d042cc7ea795c775bc·...·]2-3">)</span><span·class="p">.</span><span·class="w"> |
| 213 | </span><span·class="c1">%%·Dialyzer·will·infer:·foo(integer())·->·string().</span><span·class="w"> | 213 | </span><span·class="c1">%%·Dialyzer·will·infer:·foo(integer())·->·string().</span><span·class="w"> |
| 214 | </span><span·class="nf">foo</span><span·class="p"·data-group-id=" | 214 | </span><span·class="nf">foo</span><span·class="p"·data-group-id="4316946992-4">(</span><span·class="n">N</span><span·class="p"·data-group-id="4316946992-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 215 | ····</span><span·class="nf">integer_to_list</span><span·class="p"·data-group-id=" | 215 | ····</span><span·class="nf">integer_to_list</span><span·class="p"·data-group-id="4316946992-5">(</span><span·class="n">N</span><span·class="p"·data-group-id="4316946992-5">)</span><span·class="p">.</span></code></pre><p>Since·the·type·of·the·argument·in·the·spec·is·different·from·the·type·that |
| 216 | Dialyzer·inferred,·Dialyzer·will·generate·the·following·warning:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="ss">some_module</span><span·class="p">.</span><span·class="nc">erl</span><span·class="p">:</span><span·class="mi">7</span><span·class="p">:</span><span·class="mi">2</span><span·class="p">:</span><span·class="w">·</span><span·class="n">Invalid</span><span·class="w">·</span><span·class="ss">type</span><span·class="w">·</span><span·class="ss">specification</span><span·class="w">·</span><span·class="ss">for</span><span·class="w">·</span><span·class="ss">function</span><span·class="w">·</span><span·class="nc">some_module</span><span·class="p">:</span><span·class="ss">foo</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">.</span><span·class="w"> | 216 | Dialyzer·inferred,·Dialyzer·will·generate·the·following·warning:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="ss">some_module</span><span·class="p">.</span><span·class="nc">erl</span><span·class="p">:</span><span·class="mi">7</span><span·class="p">:</span><span·class="mi">2</span><span·class="p">:</span><span·class="w">·</span><span·class="n">Invalid</span><span·class="w">·</span><span·class="ss">type</span><span·class="w">·</span><span·class="ss">specification</span><span·class="w">·</span><span·class="ss">for</span><span·class="w">·</span><span·class="ss">function</span><span·class="w">·</span><span·class="nc">some_module</span><span·class="p">:</span><span·class="ss">foo</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">.</span><span·class="w"> |
| 217 | ·</span><span·class="n">The</span><span·class="w">·</span><span·class="ss">success</span><span·class="w">·</span><span·class="ss">typing</span><span·class="w">·</span><span·class="ss">is</span><span·class="w">·</span><span·class="nc">some_module</span><span·class="p">:</span><span·class="nf">foo</span><span·class="w"> | 217 | ·</span><span·class="n">The</span><span·class="w">·</span><span·class="ss">success</span><span·class="w">·</span><span·class="ss">typing</span><span·class="w">·</span><span·class="ss">is</span><span·class="w">·</span><span·class="nc">some_module</span><span·class="p">:</span><span·class="nf">foo</span><span·class="w"> |
| 218 | ··········</span><span·class="p"·data-group-id=" | 218 | ··········</span><span·class="p"·data-group-id="6077140282-1">(</span><span·class="nf">integer</span><span·class="p"·data-group-id="6077140282-2">(</span><span·class="p"·data-group-id="6077140282-2">)</span><span·class="p"·data-group-id="6077140282-1">)</span><span·class="w">·</span><span·class="p">->[·...·truncated·by·diffoscope;·len:·156,·SHA:·9e61f1f70d43a8c0cfb34a7ffe07050509d215278d5526dc335b6541a395004b·...·]-3">)</span><span·class="w"> |
| 219 | ·</span><span·class="n">But</span><span·class="w">·</span><span·class="ss">the</span><span·class="w">·</span><span·class="ss">spec</span><span·class="w">·</span><span·class="ss">is</span><span·class="w">·</span><span·class="nc">some_module</span><span·class="p">:</span><span·class="nf">foo</span><span·class="w"> | 219 | ·</span><span·class="n">But</span><span·class="w">·</span><span·class="ss">the</span><span·class="w">·</span><span·class="ss">spec</span><span·class="w">·</span><span·class="ss">is</span><span·class="w">·</span><span·class="nc">some_module</span><span·class="p">:</span><span·class="nf">foo</span><span·class="w"> |
| 220 | ··········</span><span·class="p"·data-group-id=" | 220 | ··········</span><span·class="p"·data-group-id="6077140282-4">(</span><span·class="nf">boolean</span><span·class="p"·data-group-id="6077140282-5">(</span><span·class="p"·data-group-id="6077140282-5">)</span><span·class="p"·data-group-id="6077140282-4">)</span><span·class="w">·</span><span·class="p">->[·...·truncated·by·diffoscope;·len:·156,·SHA:·be15f0f84cb297568ef65b4f1aa25cd0f8d484b4ecd8f0eb61534eff833bffee·...·]-6">)</span><span·class="w"> |
| 221 | ·</span><span·class="n">They</span><span·class="w">·</span><span·class="ss">do</span><span·class="w">·</span><span·class="ow">not</span><span·class="w">·</span><span·class="ss">overlap</span><span·class="w">·</span><span·class="ss">in</span><span·class="w">·</span><span·class="ss">the</span><span·class="w">·</span><span·class="mi">1</span><span·class="ss">st</span><span·class="w">·</span><span·class="ss">argument</span></code></pre><p>Non-overlapping·return:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">spec</span><span·class="w">·</span><span·class="nf">bar</span><span·class="p"·data-group-id=" | 221 | ·</span><span·class="n">They</span><span·class="w">·</span><span·class="ss">do</span><span·class="w">·</span><span·class="ow">not</span><span·class="w">·</span><span·class="ss">overlap</span><span·class="w">·</span><span·class="ss">in</span><span·class="w">·</span><span·class="ss">the</span><span·class="w">·</span><span·class="mi">1</span><span·class="ss">st</span><span·class="w">·</span><span·class="ss">argument</span></code></pre><p>Non-overlapping·return:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">spec</span><span·class="w">·</span><span·class="nf">bar</span><span·class="p"·data-group-id="3241764989-1">(</span><span·class="ss">a</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">b</span><span·class="p"·data-group-id="3241764989-1">)</span><span·class="w">·</span><span·class="p">-></span><span·c[·...·truncated·by·diffoscope;·len:·139,·SHA:·ac9ec5726d89fe40f5457218dbb96cc8d484608f91943874e4de71ce5ac2d3c8·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 222 | </span><span·class="c1">%%·Dialyzer·will·infer:·bar(a·|·b)·->·binary().</span><span·class="w"> | 222 | </span><span·class="c1">%%·Dialyzer·will·infer:·bar(a·|·b)·->·binary().</span><span·class="w"> |
| 223 | </span><span·class="nf">bar</span><span·class="p"·data-group-id="9652407735-3">(</span><span·class="ss">a</span><span·class="p"·data-group-id="9652407735-3">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="p"·data-group-id="9652407735-4"><<</span><span·class="s">"a"</span><span·class="p"·data-group-id="9652407735-4">>></span><span·class="p">;</span><span·class="w"> | ||
| 224 | </span><span·class="nf">bar</span><span·class="p"·data-group-id=" | 223 | </span><span·class="nf">bar</span><span·class="p"·data-group-id="3241764989-3">(</span><span·class="ss">a</span><span·class="p"·data-group-id="3241764989-3">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="p"·data-group-id="3241764989-4"><<</span><span·class="s">&quo[·...·truncated·by·diffoscope;·len:·116,·SHA:·2d0a3f77c77b2be167ee330759101f4c33adb5554629cc96ddc1cbaab1126752·...·] |
| 224 | </span><span·class="nf">bar</span><span·class="p"·data-group-id="3241764989-5">(</span><span·class="ss">b</span><span·class="p"·data-group-id="3241764989-5">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="p"·data-group-id="3241764989-6"><<</span><span·class="s">"b"</span><span·class="p"·data-group-id="3241764989-6">>></span><span·class="p">.</span></code></pre><p>Since·the·return·value·in·the·spec·and·the·return·value·inferred·by·Dialyzer·are | ||
| 225 | different,·Dialyzer·will·generate·the·following·warning:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="ss">some_module</span><span·class="p">.</span><span·class="nc">erl</span><span·class="p">:</span><span·class="mi">11</span><span·class="p">:</span><span·class="mi">2</span><span·class="p">:</span><span·class="w">·</span><span·class="n">Invalid</span><span·class="w">·</span><span·class="ss">type</span><span·class="w">·</span><span·class="ss">specification</span><span·class="w">·</span><span·class="ss">for</span><span·class="w">·</span><span·class="ss">function</span><span·class="w">·</span><span·class="nc">some_module</span><span·class="p">:</span><span·class="ss">bar</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">.</span><span·class="w"> | 225 | different,·Dialyzer·will·generate·the·following·warning:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="ss">some_module</span><span·class="p">.</span><span·class="nc">erl</span><span·class="p">:</span><span·class="mi">11</span><span·class="p">:</span><span·class="mi">2</span><span·class="p">:</span><span·class="w">·</span><span·class="n">Invalid</span><span·class="w">·</span><span·class="ss">type</span><span·class="w">·</span><span·class="ss">specification</span><span·class="w">·</span><span·class="ss">for</span><span·class="w">·</span><span·class="ss">function</span><span·class="w">·</span><span·class="nc">some_module</span><span·class="p">:</span><span·class="ss">bar</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">.</span><span·class="w"> |
| 226 | ·</span><span·class="n">The</span><span·class="w">·</span><span·class="ss">success</span><span·class="w">·</span><span·class="ss">typing</span><span·class="w">·</span><span·class="ss">is</span><span·class="w">·</span><span·class="nc">some_module</span><span·class="p">:</span><span·class="nf">bar</span><span·class="w"> | 226 | ·</span><span·class="n">The</span><span·class="w">·</span><span·class="ss">success</span><span·class="w">·</span><span·class="ss">typing</span><span·class="w">·</span><span·class="ss">is</span><span·class="w">·</span><span·class="nc">some_module</span><span·class="p">:</span><span·class="nf">bar</span><span·class="w"> |
| 227 | ··········</span><span·class="p"·data-group-id="9 | 227 | ··········</span><span·class="p"·data-group-id="3899729077-1">(</span><span·class="ss">'a'</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">'b'</span><span·class="p"·data-group-id="3899729077-1">)</span><span·class="w">·</span><span·class="p"[·...·truncated·by·diffoscope;·len:·211,·SHA:·47009587f5ec2c533a7d7f80ae03a6d5ff2181db72daf02b71facd5546f260f8·...·]-2">>></span><span·class="w"> |
| 228 | ·</span><span·class="n">But</span><span·class="w">·</span><span·class="ss">the</span><span·class="w">·</span><span·class="ss">spec</span><span·class="w">·</span><span·class="ss">is</span><span·class="w">·</span><span·class="nc">some_module</span><span·class="p">:</span><span·class="nf">bar</span><span·class="w"> | 228 | ·</span><span·class="n">But</span><span·class="w">·</span><span·class="ss">the</span><span·class="w">·</span><span·class="ss">spec</span><span·class="w">·</span><span·class="ss">is</span><span·class="w">·</span><span·class="nc">some_module</span><span·class="p">:</span><span·class="nf">bar</span><span·class="w"> |
| 229 | ··········</span><span·class="p"·data-group-id="9 | 229 | ··········</span><span·class="p"·data-group-id="3899729077-3">(</span><span·class="ss">'a'</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">'b'</span><span·class="p"·data-group-id="3899729077-3">)</span><span·class="w">·</span><span·class="p"[·...·truncated·by·diffoscope;·len:·159,·SHA:·3ec0b2fe24a4e7f8617fb5a74db9e3fbdef9c20b6c9173d77ae79b4d13d4a41e·...·]-4">)</span><span·class="w"> |
| 230 | ·</span><span·class="n">The</span><span·class="w">·</span><span·class="ss">return</span><span·class="w">·</span><span·class="ss">types</span><span·class="w">·</span><span·class="ss">do</span><span·class="w">·</span><span·class="ow">not</span><span·class="w">·</span><span·class="ss">overlap</span></code></pre><p>Overlapping·spec·and·inferred·type:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">spec</span><span·class="w">·</span><span·class="nf">baz</span><span·class="p"·data-group-id="9 | 230 | ·</span><span·class="n">The</span><span·class="w">·</span><span·class="ss">return</span><span·class="w">·</span><span·class="ss">types</span><span·class="w">·</span><span·class="ss">do</span><span·class="w">·</span><span·class="ow">not</span><span·class="w">·</span><span·class="ss">overlap</span></code></pre><p>Overlapping·spec·and·inferred·type:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">spec</span><span·class="w">·</span><span·class="nf">baz</span><span·class="p"·data-group-id="9376007198-1">(</span><span·class="ss">a</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">b</span><span·class="p"·data-group-id="9376007198-1">)</span><span·class="w">·</span><span·class="p">-></span><span·cl[·...·truncated·by·diffoscope;·len:·149,·SHA:·c1fdfe99665fedd23748e8f774acb9bf5ede81e68e77746917bd25ec3c7bcfcf·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 231 | </span><span·class="c1">%%·Dialyzer·will·infer:·baz(b·|·c·|·d)·->·-1·|·0·|·1.</span><span·class="w"> | 231 | </span><span·class="c1">%%·Dialyzer·will·infer:·baz(b·|·c·|·d)·->·-1·|·0·|·1.</span><span·class="w"> |
| 232 | </span><span·class="nf">baz</span><span·class="p"·data-group-id="9 | 232 | </span><span·class="nf">baz</span><span·class="p"·data-group-id="9376007198-3">(</span><span·class="ss">b</span><span·class="p"·data-group-id="9376007198-3">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="o">-</span><span·class="mi">1</span><span·class="p">;</span><span·class="w"> |
| 233 | </span><span·class="nf">baz</span><span·class="p"·data-group-id="9 | 233 | </span><span·class="nf">baz</span><span·class="p"·data-group-id="9376007198-4">(</span><span·class="ss">c</span><span·class="p"·data-group-id="9376007198-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="mi">0</span><span·class="p">;</span><span·class="w"> |
| 234 | </span><span·class="nf">baz</span><span·class="p"·data-group-id="9 | 234 | </span><span·class="nf">baz</span><span·class="p"·data-group-id="9376007198-5">(</span><span·class="ss">d</span><span·class="p"·data-group-id="9376007198-5">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="mi">1</span><span·class="p">.</span></code></pre><p>Dialyzer·will·"trust"·the·spec·and·using·the·intersection·of·the·spec·and |
| 235 | inferred·type:</p><pre><code·class="text">baz(b)·->·0·|·1.</code></pre><p>Notice·how·the·<code·class="inline">c</code>·and·<code·class="inline">d</code>·from·the·argument·to·<code·class="inline">baz/1</code>·and·the·<code·class="inline">-1</code>·in·the | 235 | inferred·type:</p><pre><code·class="text">baz(b)·->·0·|·1.</code></pre><p>Notice·how·the·<code·class="inline">c</code>·and·<code·class="inline">d</code>·from·the·argument·to·<code·class="inline">baz/1</code>·and·the·<code·class="inline">-1</code>·in·the |
| 236 | return·from·the·inferred·type·were·dropped·once·the·spec·and·inferred·type·were | 236 | return·from·the·inferred·type·were·dropped·once·the·spec·and·inferred·type·were |
| 237 | intersected.·This·could·result·in·warnings·being·emitted·for·later·functions.</p><p>For·example,·if·<code·class="inline">baz/1</code>·is·called·like·this:</p><pre><code·class="text">call_baz1(A)·-> | 237 | intersected.·This·could·result·in·warnings·being·emitted·for·later·functions.</p><p>For·example,·if·<code·class="inline">baz/1</code>·is·called·like·this:</p><pre><code·class="text">call_baz1(A)·-> |
| 238 | ····case·baz(A)·of | 238 | ····case·baz(A)·of |
| 239 | ········-1·->·negative; | 239 | ········-1·->·negative; |
| 240 | ········0·->·zero; | 240 | ········0·->·zero; |
| 241 | ········1·->·positive | 241 | ········1·->·positive |
| Offset 302, 15 lines modified | Offset 302, 15 lines modified | ||
| 302 | ······<p·class="built-using"> | 302 | ······<p·class="built-using"> |
| 303 | ········Built·using | 303 | ········Built·using |
| 304 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 304 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 305 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 305 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 306 | ······</p> | 306 | ······</p> |
| 307 | <p>Copyright·©·1996-202 | 307 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 308 | ····</footer> | 308 | ····</footer> |
| 309 | ··</div> | 309 | ··</div> |
| 310 | </main> | 310 | </main> |
| 311 | </div> | 311 | </div> |
| 312 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 312 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 313 | ··<script> | 313 | ··<script> |
| 314 | ··let·initialized·=·false; | 314 | ··let·initialized·=·false; |
| Offset 139, 17 lines modified | Offset 139, 17 lines modified | ||
| 139 | </h3> | 139 | </h3> |
| 140 | <ul><li><p>The·<code·class="inline">-Wno_unknown</code>·option·will·now·prevent·a·warning·being·printed·to·standard·output·when·the·command·line·interface·is·used.</p><p>Own·Id:·OTP-19262·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/8822"·title="">GH-8822</a>,·<a·href="https://github.com/erlang/otp/pull/8885"·title="">PR-8885</a></p></li></ul><h3·id="improvements-and-new-features"·class="section-heading"> | 140 | <ul><li><p>The·<code·class="inline">-Wno_unknown</code>·option·will·now·prevent·a·warning·being·printed·to·standard·output·when·the·command·line·interface·is·used.</p><p>Own·Id:·OTP-19262·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/8822"·title="">GH-8822</a>,·<a·href="https://github.com/erlang/otp/pull/8885"·title="">PR-8885</a></p></li></ul><h3·id="improvements-and-new-features"·class="section-heading"> |
| 141 | ··<a·href="#improvements-and-new-features"·class="hover-link"> | 141 | ··<a·href="#improvements-and-new-features"·class="hover-link"> |
| 142 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 142 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 143 | ··</a> | 143 | ··</a> |
| 144 | ··<span·class="text">Improvements·and·New·Features</span> | 144 | ··<span·class="text">Improvements·and·New·Features</span> |
| 145 | </h3> | 145 | </h3> |
| 146 | <ul><li><p><a·href="https://www.erlang.org/eeps/eep-0069">EEP-69:·Nominal·Types</a>·has·been·implemented.·As·a·side·effect,·nominal·types·can·encode·opaque·types.·We·changed·all·opaque-handling·logic·and·improved·opaque·warnings·in·Dialyzer.</p><p>All·existing·Erlang·type·systems·are·structural:·two·types·are·seen·as·equivalent·if·their·structures·are·the·same.·Type·comparisons·are·based·on·the·structures·of·the·types,·not·on·how·the·user·explicitly·defines·them.·For·example,·in·the·following·example,·<code·class="inline">meter()</code>·and·<code·class="inline">foot()</code>·are·equivalent.·The·two·types·can·be·used·interchangeably.·Neither·of·them·differ·from·the·basic·type·<code·class="inline">integer()</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">type</span><span·class="w">·</span><span·class="nf">meter</span><span·class="p"·data-group-id=" | 146 | <ul><li><p><a·href="https://www.erlang.org/eeps/eep-0069">EEP-69:·Nominal·Types</a>·has·been·implemented.·As·a·side·effect,·nominal·types·can·encode·opaque·types.·We·changed·all·opaque-handling·logic·and·improved·opaque·warnings·in·Dialyzer.</p><p>All·existing·Erlang·type·systems·are·structural:·two·types·are·seen·as·equivalent·if·their·structures·are·the·same.·Type·comparisons·are·based·on·the·structures·of·the·types,·not·on·how·the·user·explicitly·defines·them.·For·example,·in·the·following·example,·<code·class="inline">meter()</code>·and·<code·class="inline">foot()</code>·are·equivalent.·The·two·types·can·be·used·interchangeably.·Neither·of·them·differ·from·the·basic·type·<code·class="inline">integer()</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">type</span><span·class="w">·</span><span·class="nf">meter</span><span·class="p"·data-group-id="2840102425-1">(</span><span·class="p"·data-group-id="2840102425-1">)</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="2840102425-2">(</span><[·...·truncated·by·diffoscope;·len:·40,·SHA:·368e6fce11591cd1d5be7283558d60a22d72d92c8e815ee2bebca7e19363107a·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 147 | </span><span·class="p">-</span><span·class="na">type</span><span·class="w">·</span><span·class="nf">foot</span><span·class="p"·data-group-id=" | 147 | </span><span·class="p">-</span><span·class="na">type</span><span·class="w">·</span><span·class="nf">foot</span><span·class="p"·data-group-id="2840102425-3">(</span><span·class="p"·data-group-id="2840102425-3">)</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="2840102425-4">(</span><[·...·truncated·by·diffoscope;·len:·1059,·SHA:·bf21b1c431846ce26ccef051c21bab7d6fa7d54ab07195a36472134f0e7692ac·...·]75-2">)</span><span·class="p">.</span><span·class="w"> |
| 148 | </span><span·class="p">-</span><span·class="na">nominal</span><span·class="w">·</span><span·class="nf">foot</span><span·class="p"·data-group-id="2 | 148 | </span><span·class="p">-</span><span·class="na">nominal</span><span·class="w">·</span><span·class="nf">foot</span><span·class="p"·data-group-id="2029167875-3">(</span><span·class="p"·data-group-id="2029167875-3">)</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="2029167875-4">(</span><s[·...·truncated·by·diffoscope;·len:·37,·SHA:·978bb6de9e43eae8e16d2dfc2a8d7027f478910b4b14f9b9a58259e176fd78ad·...·]75-4">)</span><span·class="p">.</span></code></pre><p>More·nominal·type-checking·rules·can·be·found·in·the·EEP.·It·is·worth·noting·that·most·work·for·adding·nominal·types·and·type-checking·is·in·<code·class="inline">erl_types.erl</code>.·The·rest·are·changes·that·removed·the·previous·opaque·type-checking,·and·added·an·improved·version·of·it·using·nominal·type-checking·with·reworked·warnings.</p><p>Backwards·compatibility·for·opaque·type-checking·is·not·preserved·by·this·PR.·Previous·opaque·warnings·can·appear·with·slightly·different·wordings.·A·new·kind·of·opaque·warning·<code·class="inline">opaque_union</code>·is·added,·together·with·a·Dialyzer·option·<code·class="inline">no_opaque_union</code>·to·turn·this·kind·of·warnings·off.</p><p>Own·Id:·OTP-19364·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9079"·title="">PR-9079</a></p></li><li><p>Fixed·licenses·in·files·and·added·ORT·curations·to·the·following·apps:·otp,·eldap,·erl_interface,·eunit,·parsetools,·stdlib,·syntax_tools,·and·ERTS.</p><p>Own·Id:·OTP-19478·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9376"·title="">PR-9376</a>,·<a·href="https://github.com/erlang/otp/pull/9402"·title="">PR-9402</a>,·<a·href="https://github.com/erlang/otp/pull/9819"·title="">PR-9819</a></p></li><li><p>The·license·and·copyright·header·has·changed·format·to·include·an·<code·class="inline">SPDX-License-Identifier</code>.·At·the·same·time,·most·files·have·been·updated·to·follow·a·uniform·standard·for·license·headers.</p><p>Own·Id:·OTP-19575·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9670"·title="">PR-9670</a></p></li></ul><h2·id="dialyzer-5-3-1"·class="section-heading"> |
| 149 | ··<a·href="#dialyzer-5-3-1"·class="hover-link"> | 149 | ··<a·href="#dialyzer-5-3-1"·class="hover-link"> |
| 150 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 150 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 151 | ··</a> | 151 | ··</a> |
| 152 | ··<span·class="text">Dialyzer·5.3.1</span> | 152 | ··<span·class="text">Dialyzer·5.3.1</span> |
| 153 | </h2> | 153 | </h2> |
| 154 | <h3·id="fixed-bugs-and-malfunctions-1"·class="section-heading"> | 154 | <h3·id="fixed-bugs-and-malfunctions-1"·class="section-heading"> |
| 155 | ··<a·href="#fixed-bugs-and-malfunctions-1"·class="hover-link"> | 155 | ··<a·href="#fixed-bugs-and-malfunctions-1"·class="hover-link"> |
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| 1907 | ······<p·class="built-using"> | 1907 | ······<p·class="built-using"> |
| 1908 | ········Built·using | 1908 | ········Built·using |
| 1909 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1909 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1910 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1910 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1911 | ······</p> | 1911 | ······</p> |
| 1912 | <p>Copyright·©·1996-202 | 1912 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1913 | ····</footer> | 1913 | ····</footer> |
| 1914 | ··</div> | 1914 | ··</div> |
| 1915 | </main> | 1915 | </main> |
| 1916 | </div> | 1916 | </div> |
| 1917 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1917 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1918 | ··<script> | 1918 | ··<script> |
| 1919 | ··let·initialized·=·false; | 1919 | ··let·initialized·=·false; |
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| 141 | ······<p·class="built-using"> | 141 | ······<p·class="built-using"> |
| 142 | ········Built·using | 142 | ········Built·using |
| 143 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 143 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 144 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 144 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 145 | ······</p> | 145 | ······</p> |
| 146 | <p>Copyright·©·1996-202 | 146 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 147 | ····</footer> | 147 | ····</footer> |
| 148 | ··</div> | 148 | ··</div> |
| 149 | </main> | 149 | </main> |
| 150 | </div> | 150 | </div> |
| 151 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 151 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 152 | ··<script> | 152 | ··<script> |
| 153 | ··let·initialized·=·false; | 153 | ··let·initialized·=·false; |
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| 196 | ······<p·class="built-using"> | 196 | ······<p·class="built-using"> |
| 197 | ········Built·using | 197 | ········Built·using |
| 198 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 198 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 199 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 199 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 200 | ······</p> | 200 | ······</p> |
| 201 | <p>Copyright·©·1996-202 | 201 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 202 | ····</footer> | 202 | ····</footer> |
| 203 | ··</div> | 203 | ··</div> |
| 204 | </main> | 204 | </main> |
| 205 | </div> | 205 | </div> |
| 206 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 206 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 207 | ··<script> | 207 | ··<script> |
| 208 | ··let·initialized·=·false; | 208 | ··let·initialized·=·false; |
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| 143 | ······<p·class="built-using"> | 143 | ······<p·class="built-using"> |
| 144 | ········Built·using | 144 | ········Built·using |
| 145 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 145 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 146 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 146 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 147 | ······</p> | 147 | ······</p> |
| 148 | <p>Copyright·©·1996-202 | 148 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 149 | ····</footer> | 149 | ····</footer> |
| 150 | ··</div> | 150 | ··</div> |
| 151 | </main> | 151 | </main> |
| 152 | </div> | 152 | </div> |
| 153 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 153 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 154 | ··<script> | 154 | ··<script> |
| 155 | ··let·initialized·=·false; | 155 | ··let·initialized·=·false; |
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| 242 | ······<p·class="built-using"> | 242 | ······<p·class="built-using"> |
| 243 | ········Built·using | 243 | ········Built·using |
| 244 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 244 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 245 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 245 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 246 | ······</p> | 246 | ······</p> |
| 247 | <p>Copyright·©·1996-202 | 247 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 248 | ····</footer> | 248 | ····</footer> |
| 249 | ··</div> | 249 | ··</div> |
| 250 | </main> | 250 | </main> |
| 251 | </div> | 251 | </div> |
| 252 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 252 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 253 | ··<script> | 253 | ··<script> |
| 254 | ··let·initialized·=·false; | 254 | ··let·initialized·=·false; |
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| 697 | ······</div> | 697 | ······</div> |
| 698 | <p>Invoked·when·a·request·message·is·received·from·a·peer.·The·application·in·which | 698 | <p>Invoked·when·a·request·message·is·received·from·a·peer.·The·application·in·which |
| 699 | the·callback·takes·place·(that·is,·the·callback·module·as·configured·with | 699 | the·callback·takes·place·(that·is,·the·callback·module·as·configured·with |
| 700 | <a·href="diameter.html#start_service/2"><code·class="inline">diameter:start_service/2</code></a>)·is·determined·by·the·Application·Identifier·in·the | 700 | <a·href="diameter.html#start_service/2"><code·class="inline">diameter:start_service/2</code></a>)·is·determined·by·the·Application·Identifier·in·the |
| 701 | header·of·the·incoming·request·message,·the·selected·module·being·the·one·whose | 701 | header·of·the·incoming·request·message,·the·selected·module·being·the·one·whose |
| 702 | corresponding·dictionary·declares·itself·as·defining·either·the·application·in | 702 | corresponding·dictionary·declares·itself·as·defining·either·the·application·in |
| 703 | question·or·the·Relay·application.</p><p>The·argument·<a·href="#t:packet/0">packet()</a>·has·the·following·signature.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="o">#</span><span·class="ss">diameter_packet</span><span·class="p"·data-group-id=" | 703 | question·or·the·Relay·application.</p><p>The·argument·<a·href="#t:packet/0">packet()</a>·has·the·following·signature.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="o">#</span><span·class="ss">diameter_packet</span><span·class="p"·data-group-id="8792682907-1">{</span><span·class="ss">header</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">diameter_header</span><span·class="p"·data-group-id="8792682907-2">{</span><span·class="p"·[·...·truncated·by·diffoscope;·len:·25,·SHA:·16ec3632287846d37d827bb1bbf6f2ac74361e165aac118942a401f4c772f973·...·]-2">}</span><span·class="p">,</span><span·class="w"> |
| 704 | ·················</span><span·class="ss">avps</span><span·class="w">···</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 704 | ·················</span><span·class="ss">avps</span><span·class="w">···</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="8792682907-3">[</span><span·class="o">#</span><span·class="ss">diameter_avp</span><span·class="p"·data-group-id="8792682907-4">{</span><span·class="p"·data-group-id="8792682907-4">}</span><span·class="p"·data-group-id="8792682907-3">]</span><span·class="p">,</span><span·class="w"> |
| 705 | ·················</span><span·class="ss">msg</span><span·class="w">····</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">record</span><span·class="p"·data-group-id=" | 705 | ·················</span><span·class="ss">msg</span><span·class="w">····</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">record</span><span·class="p"·data-group-id="8792682907-5">(</span><span·class="p"·data-group-id="8792682907-5">)</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">undefined</span><span·class="p">,</span><span·class="w"> |
| 706 | ·················</span><span·class="ss">errors</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 706 | ·················</span><span·class="ss">errors</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="8792682907-6">[</span><span·class="n">Unsigned32</span><span·class="p"·data-group-id="8792682907-7">(</span><span·class="p"·data-group-id="8792682907-7">)</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-gr[·...·truncated·by·diffoscope;·len:·479,·SHA:·b215c1d0b75e3162ea0935a3f4fa0cb3cf6ee3050ce8b4f8d96d598835c0287d·...·]-6">]</span><span·class="p">,</span><span·class="w"> |
| 707 | ·················</span><span·class="ss">bin</span><span·class="w">····</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">binary</span><span·class="p"·data-group-id=" | 707 | ·················</span><span·class="ss">bin</span><span·class="w">····</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">binary</span><span·class="p"·data-group-id="8792682907-11">(</span><span·class="p"·data-group-id="8792682907-11">)</span><span·class="p">,</span><span·class="w"> |
| 708 | ·················</span><span·class="ss">transport_data</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">term</span><span·class="p"·data-group-id=" | 708 | ·················</span><span·class="ss">transport_data</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">term</span><span·class="p"·data-group-id="8792682907-12">(</span><span·class="p"·data-group-id="8792682907-12">)</span><span·class="p"·data-group-id="8792682907-1">}</span></code></pre><p>The·<code·class="inline">msg</code>·field·will·be·<code·class="inline">undefined</code>·in·case·the·request·has·been·received·in·the |
| 709 | relay·application.·Otherwise·it·contains·the·record·representing·the·request·as | 709 | relay·application.·Otherwise·it·contains·the·record·representing·the·request·as |
| 710 | outlined·in·<a·href="diameter_dict.html#MESSAGE_RECORDS">diameter_dict(4)</a>.</p><p>The·<code·class="inline">errors</code>·field·specifies·any·results·codes·identifying·errors·found·while | 710 | outlined·in·<a·href="diameter_dict.html#MESSAGE_RECORDS">diameter_dict(4)</a>.</p><p>The·<code·class="inline">errors</code>·field·specifies·any·results·codes·identifying·errors·found·while |
| 711 | decoding·the·request.·This·is·used·to·set·Result-Code·and/or·Failed-AVP·in·a | 711 | decoding·the·request.·This·is·used·to·set·Result-Code·and/or·Failed-AVP·in·a |
| 712 | returned·answer·unless·the·callback·returns·a·<code·class="inline">#diameter_packet{}</code>·whose | 712 | returned·answer·unless·the·callback·returns·a·<code·class="inline">#diameter_packet{}</code>·whose |
| 713 | <code·class="inline">errors</code>·field·is·set·to·either·a·non-empty·list·of·its·own,·in·which·case·this | 713 | <code·class="inline">errors</code>·field·is·set·to·either·a·non-empty·list·of·its·own,·in·which·case·this |
| 714 | list·is·used·instead,·or·the·atom·<code·class="inline">false</code>·to·disable·any·setting·of·Result-Code | 714 | list·is·used·instead,·or·the·atom·<code·class="inline">false</code>·to·disable·any·setting·of·Result-Code |
| 715 | and·Failed-AVP.·Note·that·the·errors·detected·by·diameter·are·of·the·3xxx·and | 715 | and·Failed-AVP.·Note·that·the·errors·detected·by·diameter·are·of·the·3xxx·and |
| Offset 1010, 15 lines modified | Offset 1010, 15 lines modified | ||
| 1010 | ······<p·class="built-using"> | 1010 | ······<p·class="built-using"> |
| 1011 | ········Built·using | 1011 | ········Built·using |
| 1012 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1012 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1013 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1013 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1014 | ······</p> | 1014 | ······</p> |
| 1015 | <p>Copyright·©·1996-202 | 1015 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1016 | ····</footer> | 1016 | ····</footer> |
| 1017 | ··</div> | 1017 | ··</div> |
| 1018 | </main> | 1018 | </main> |
| 1019 | </div> | 1019 | </div> |
| 1020 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1020 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1021 | ··<script> | 1021 | ··<script> |
| 1022 | ··let·initialized·=·false; | 1022 | ··let·initialized·=·false; |
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| 135 | encode/decode.</p><section·role="note"·class="admonition·warning"><h4·class="admonition-title·warning">Warning</h4><p>The·diameter·user·does·not·need·to·call·functions·here·explicitly·when·sending | 135 | encode/decode.</p><section·role="note"·class="admonition·warning"><h4·class="admonition-title·warning">Warning</h4><p>The·diameter·user·does·not·need·to·call·functions·here·explicitly·when·sending |
| 136 | and·receiving·messages·using·<a·href="diameter.html#call/4"><code·class="inline">diameter:call/4</code></a>·and·the·callback·interface | 136 | and·receiving·messages·using·<a·href="diameter.html#call/4"><code·class="inline">diameter:call/4</code></a>·and·the·callback·interface |
| 137 | documented·in·<a·href="diameter_app.html"><code·class="inline">diameter_app</code></a>:·diameter·itself·provides·encode/decode·as·a | 137 | documented·in·<a·href="diameter_app.html"><code·class="inline">diameter_app</code></a>:·diameter·itself·provides·encode/decode·as·a |
| 138 | consequence·of·configuration·passed·to·<a·href="diameter.html#start_service/2"><code·class="inline">diameter:start_service/2</code></a>,·and·the | 138 | consequence·of·configuration·passed·to·<a·href="diameter.html#start_service/2"><code·class="inline">diameter:start_service/2</code></a>,·and·the |
| 139 | results·may·differ·from·those·returned·by·the·functions·documented·here, | 139 | results·may·differ·from·those·returned·by·the·functions·documented·here, |
| 140 | depending·on·configuration.</p></section><p>The·<a·href="diameter_codec.html#header">header()</a>·and | 140 | depending·on·configuration.</p></section><p>The·<a·href="diameter_codec.html#header">header()</a>·and |
| 141 | <a·href="diameter_codec.html#packet">packet()</a>·records·below·are·defined·in·diameter.hrl, | 141 | <a·href="diameter_codec.html#packet">packet()</a>·records·below·are·defined·in·diameter.hrl, |
| 142 | which·can·be·included·as·follows.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id="4 | 142 | which·can·be·included·as·follows.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id="4946116045-1">(</span><span·class="s">"diameter/include/diameter.hrl"</span><span·class="p"·data-group-id="4946116045-1">)</span><span·class="p">.</span></code></pre><p>Application-specific·records·are·defined·in·the·hrl·files·resulting·from |
| 143 | dictionary·file·compilation.</p><h2·id="module-data-types"·class="section-heading"> | 143 | dictionary·file·compilation.</p><h2·id="module-data-types"·class="section-heading"> |
| 144 | ··<a·href="#module-data-types"·class="hover-link"> | 144 | ··<a·href="#module-data-types"·class="hover-link"> |
| 145 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 145 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 146 | ··</a> | 146 | ··</a> |
| 147 | ··<span·class="text">DATA·TYPES</span> | 147 | ··<span·class="text">DATA·TYPES</span> |
| 148 | </h2> | 148 | </h2> |
| 149 | <ul><li><p><strong><code·class="inline"·id="integers">uint8() ·=·0..255</code></strong></p></li><li><p><strong><code·class="inline">uint24()·=·0..16777215</code></strong></p></li><li><p><strong><code·class="inline">uint32()·=·0..4294967295</code></strong>·-·8-bit,·24-bit·and·32-bit·integers·occurring | 149 | <ul><li><p><strong><code·class="inline"·id="integers">uint8() ·=·0..255</code></strong></p></li><li><p><strong><code·class="inline">uint24()·=·0..16777215</code></strong></p></li><li><p><strong><code·class="inline">uint32()·=·0..4294967295</code></strong>·-·8-bit,·24-bit·and·32-bit·integers·occurring |
| Offset 545, 15 lines modified | Offset 545, 15 lines modified | ||
| 545 | ······<p·class="built-using"> | 545 | ······<p·class="built-using"> |
| 546 | ········Built·using | 546 | ········Built·using |
| 547 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 547 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 548 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 548 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 549 | ······</p> | 549 | ······</p> |
| 550 | <p>Copyright·©·1996-202 | 550 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 551 | ····</footer> | 551 | ····</footer> |
| 552 | ··</div> | 552 | ··</div> |
| 553 | </main> | 553 | </main> |
| 554 | </div> | 554 | </div> |
| 555 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 555 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 556 | ··<script> | 556 | ··<script> |
| 557 | ··let·initialized·=·false; | 557 | ··let·initialized·=·false; |
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| 305 | ("Derived·AVP·Data·Formats")·of·RFC·6733·are·encoded·as·values·of·the·types | 305 | ("Derived·AVP·Data·Formats")·of·RFC·6733·are·encoded·as·values·of·the·types |
| 306 | defined·here.·Values·are·passed·to·<a·href="diameter.html#call/4"><code·class="inline">diameter:call/4</code></a>·in·a·request·record·when | 306 | defined·here.·Values·are·passed·to·<a·href="diameter.html#call/4"><code·class="inline">diameter:call/4</code></a>·in·a·request·record·when |
| 307 | sending·a·request,·returned·in·a·resulting·answer·record·and·passed·to·a | 307 | sending·a·request,·returned·in·a·resulting·answer·record·and·passed·to·a |
| 308 | <a·href="diameter_app.html#c:handle_request/3">handle_request/3</a>·callback·upon·reception·of | 308 | <a·href="diameter_app.html#c:handle_request/3">handle_request/3</a>·callback·upon·reception·of |
| 309 | an·incoming·request.</p><p>In·cases·in·which·there·is·a·choice·between·string()·and·binary()·types·for | 309 | an·incoming·request.</p><p>In·cases·in·which·there·is·a·choice·between·string()·and·binary()·types·for |
| 310 | OctetString()·and·derived·types,·the·representation·is·determined·by·the·value | 310 | OctetString()·and·derived·types,·the·representation·is·determined·by·the·value |
| 311 | of·<a·href="diameter.html#service_opt">diameter:service_opt()</a> | 311 | of·<a·href="diameter.html#service_opt">diameter:service_opt()</a> |
| 312 | <a·href="diameter.html#string_decode">string_decode</a>.</p><p><em>Basic·AVP·Data·Formats</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">OctetString</span><span·class="p"·data-group-id="0721187664-1">(</span><span·class="p"·data-group-id="0721187664-1">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">string</span><span·class="p"·data-group-id="0721187664-2">(</span><span·class="p"·data-group-id="0721187664-2">)</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="nf">binary</span><span·class="p"·data-group-id="0721187664-3">(</span><span·class="p"·data-group-id="0721187664-3">)</span><span·class="w"> | ||
| 313 | < | 312 | <a·href="diameter.html#string_decode">string_decode</a>.</p><p><em>Basic·AVP·Data·Formats</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">OctetString</span><span·class="p"·data-group-id="9830443636-1">(</span><span·class="p"·data-gro[·...·truncated·by·diffoscope;·len:·438,·SHA:·57e7de7007ad3928976aa4e277b1115a179b333920d315c8193f7e51a484dc7c·...·]</span><span·class="w"> |
| 313 | </span><span·class="n">Integer32</span><span·class="p"·data-group-id="9830443636-4">(</span><span·class="p"·data-group-id="9830443636-4">)</span><span·class="w">···</span><span·class="o">=</span><span·class="w">·</span><span·class="o">-</span><span·class="mi">2147483647</span><span·class="p">.</span><span·class="p">.</span><span·class="mi">2147483647</span><span·class="w"> | ||
| 314 | </span><span·class="n">Integer64</span><span·class="p"·data-group-id=" | 314 | </span><span·class="n">Integer64</span><span·class="p"·data-group-id="9830443636-5">(</span><span·class="p"·data-group-id="9830443636-5">)</span><span·class="w">···</span><span·class="o">=</span><span·class="w">·</span><span·class="o">-</span><span·class="mi">9223372036854775807</span><span·class="p">.</span><span·class="p">.</span><span·class="mi">9223372036854775807</span><span·class="w"> |
| 315 | </span><span·class="n">Unsigned32</span><span·class="p"·data-group-id=" | 315 | </span><span·class="n">Unsigned32</span><span·class="p"·data-group-id="9830443636-6">(</span><span·class="p"·data-group-id="9830443636-6">)</span><span·class="w">··</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">0</span><span·class="p">.</span><span·class="p">.</span><span·class="mi">4294967295</span><span·class="w"> |
| 316 | </span><span·class="n">Unsigned64</span><span·class="p"·data-group-id=" | 316 | </span><span·class="n">Unsigned64</span><span·class="p"·data-group-id="9830443636-7">(</span><span·class="p"·data-group-id="9830443636-7">)</span><span·class="w">··</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">0</span><span·class="p">.</span><span·class="p">.</span><span·class="mi">18446744073709551615</span><span·class="w"> |
| 317 | </span><span·class="n">Float32</span><span·class="p"·data-group-id=" | 317 | </span><span·class="n">Float32</span><span·class="p"·data-group-id="9830443636-8">(</span><span·class="p"·data-group-id="9830443636-8">)</span><span·class="w">·····</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">'-infinity'</span><span·class="w">·</span><span·class="p">|</span><span·class="w[·...·truncated·by·diffoscope;·len:·133,·SHA:·901f9c62c1b3c7a3a26140cb10172339aca9ac1c10d32c7e2712f2aeb67e04b5·...·]-9">)</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">infinity</span><span·class="w"> |
| 318 | </span><span·class="n">Float64</span><span·class="p"·data-group-id=" | 318 | </span><span·class="n">Float64</span><span·class="p"·data-group-id="9830443636-10">(</span><span·class="p"·data-group-id="9830443636-10">)</span><span·class="w">·····</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">'-infinity'</span><span·class="w">·</span><span·class="p">|</span><span·class=[·...·truncated·by·diffoscope;·len:·136,·SHA:·eb1a973d1962b82561d48087cc4387e96037ebb7d1d67bd6fe10ddefc5ae2c9a·...·]-11">)</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">infinity</span><span·class="w"> |
| 319 | </span><span·class="n">Grouped</span><span·class="p"·data-group-id=" | 319 | </span><span·class="n">Grouped</span><span·class="p"·data-group-id="9830443636-12">(</span><span·class="p"·data-group-id="9830443636-12">)</span><span·class="w">·····</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">record</span><span·class="p"·data-group-id="9830443636-13">(</span><span·class="p"·dat[·...·truncated·by·diffoscope;·len:·22,·SHA:·0b1bdc9f91b611f4d413d05445cc19e4f40a11b1cb428deaa93f02a31f537001·...·]-13">)</span></code></pre><p>On·encode,·an·OctetString()·can·be·specified·as·an·iolist(),·excessively·large |
| 320 | floats·(in·absolute·value)·are·equivalent·to·<code·class="inline">infinity</code>·or·<code·class="inline">'-infinity'</code>·and | 320 | floats·(in·absolute·value)·are·equivalent·to·<code·class="inline">infinity</code>·or·<code·class="inline">'-infinity'</code>·and |
| 321 | excessively·large·integers·result·in·encode·failure.·The·records·for·grouped | 321 | excessively·large·integers·result·in·encode·failure.·The·records·for·grouped |
| 322 | AVPs·are·as·discussed·in·the·previous·section.</p><p><em>Derived·AVP·Data·Formats</em></p><p><a·href=""·id="Address"></a></p><pre><code·class="text">Address()·=·OctetString() | 322 | AVPs·are·as·discussed·in·the·previous·section.</p><p><em>Derived·AVP·Data·Formats</em></p><p><a·href=""·id="Address"></a></p><pre><code·class="text">Address()·=·OctetString() |
| 323 | ··········|·tuple()</code></pre><p>On·encode,·an·OctetString()·IPv4·address·is·parsed·in·the·usual·x.x.x.x·format | 323 | ··········|·tuple()</code></pre><p>On·encode,·an·OctetString()·IPv4·address·is·parsed·in·the·usual·x.x.x.x·format |
| 324 | while·an·IPv6·address·is·parsed·in·any·of·the·formats·specified·by·section·2.2 | 324 | while·an·IPv6·address·is·parsed·in·any·of·the·formats·specified·by·section·2.2 |
| 325 | of·RFC·2373,·"Text·Representation·of·Addresses".·An·IPv4·tuple()·has·length·4 | 325 | of·RFC·2373,·"Text·Representation·of·Addresses".·An·IPv4·tuple()·has·length·4 |
| 326 | and·contains·values·of·type·0..255.·An·IPv6·tuple()·has·length·8·and·contains | 326 | and·contains·values·of·type·0..255.·An·IPv6·tuple()·has·length·8·and·contains |
| 327 | values·of·type·0..65535.·The·tuple·representation·is·used·on·decode.</p><p><a·href=""·id="Time"></a></p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Time</span><span·class="p"·data-group-id=" | 327 | values·of·type·0..65535.·The·tuple·representation·is·used·on·decode.</p><p><a·href=""·id="Time"></a></p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Time</span><span·class="p"·data-group-id="8197886652-1">(</span><span·class="p"·data-group-id="8197886652-1">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="8197886652-2">{</span><span·class="nf">date</span><span·class="p"·data-group-i[·...·truncated·by·diffoscope;·len:·301,·SHA:·72443166f2cd117d9d53b6bb39912024a6ee7e8a32afe230878612e8e51a2462·...·]-2">}</span><span·class="w"> |
| 328 | </span><span·class="ss">where</span><span·class="w"> | 328 | </span><span·class="ss">where</span><span·class="w"> |
| 329 | ··</span><span·class="nf">date</span><span·class="p"·data-group-id=" | 329 | ··</span><span·class="nf">date</span><span·class="p"·data-group-id="8197886652-5">(</span><span·class="p"·data-group-id="8197886652-5">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="8197886652-6">{</span><span·class="n">Year</span><span·class="p">,</span><span[·...·truncated·by·diffoscope;·len:·162,·SHA:·8f5d2c1680d4a0e0830d2a89f82c8d1e3b3ffc75d794930044739f8bac0e0a87·...·]-6">}</span><span·class="w"> |
| 330 | ··</span><span·class="nf">time</span><span·class="p"·data-group-id=" | 330 | ··</span><span·class="nf">time</span><span·class="p"·data-group-id="8197886652-7">(</span><span·class="p"·data-group-id="8197886652-7">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="8197886652-8">{</span><span·class="n">Hour</span><span·class="p">,</span><span[·...·truncated·by·diffoscope;·len:·166,·SHA:·5d56a13f9a3f5f40371e25578af4f973166dc0243bb40484bf6cd6b0b5a2e617·...·]-8">}</span><span·class="w"> |
| 331 | ··</span><span·class="n">Year</span><span·class="w">···</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id=" | 331 | ··</span><span·class="n">Year</span><span·class="w">···</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="8197886652-9">(</span><span·class="p"·data-group-id="8197886652-9">)</span><span·class="w"> |
| 332 | ··</span><span·class="n">Month</span><span·class="w">··</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">1</span><span·class="p">.</span><span·class="p">.</span><span·class="mi">12</span><span·class="w"> | 332 | ··</span><span·class="n">Month</span><span·class="w">··</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">1</span><span·class="p">.</span><span·class="p">.</span><span·class="mi">12</span><span·class="w"> |
| 333 | ··</span><span·class="n">Day</span><span·class="w">····</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">1</span><span·class="p">.</span><span·class="p">.</span><span·class="mi">31</span><span·class="w"> | 333 | ··</span><span·class="n">Day</span><span·class="w">····</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">1</span><span·class="p">.</span><span·class="p">.</span><span·class="mi">31</span><span·class="w"> |
| 334 | ··</span><span·class="n">Hour</span><span·class="w">···</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">0</span><span·class="p">.</span><span·class="p">.</span><span·class="mi">23</span><span·class="w"> | 334 | ··</span><span·class="n">Hour</span><span·class="w">···</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">0</span><span·class="p">.</span><span·class="p">.</span><span·class="mi">23</span><span·class="w"> |
| 335 | ··</span><span·class="n">Minute</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">0</span><span·class="p">.</span><span·class="p">.</span><span·class="mi">59</span><span·class="w"> | 335 | ··</span><span·class="n">Minute</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">0</span><span·class="p">.</span><span·class="p">.</span><span·class="mi">59</span><span·class="w"> |
| 336 | ··</span><span·class="n">Second</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">0</span><span·class="p">.</span><span·class="p">.</span><span·class="mi">59</span></code></pre><p>Additionally,·values·that·can·be·encoded·are·limited·by·way·of·their·encoding·as | 336 | ··</span><span·class="n">Second</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">0</span><span·class="p">.</span><span·class="p">.</span><span·class="mi">59</span></code></pre><p>Additionally,·values·that·can·be·encoded·are·limited·by·way·of·their·encoding·as |
| 337 | four·octets·as·required·by·RFC·6733·with·the·required·extension·from·RFC·2030. | 337 | four·octets·as·required·by·RFC·6733·with·the·required·extension·from·RFC·2030. |
| 338 | In·particular,·only·values·between·<code·class="inline">{{1968,1,20},{3,14,8}}</code>·and | 338 | In·particular,·only·values·between·<code·class="inline">{{1968,1,20},{3,14,8}}</code>·and |
| Offset 355, 16 lines modified | Offset 355, 16 lines modified | ||
| 355 | ··FQDN·=·OctetString() | 355 | ··FQDN·=·OctetString() |
| 356 | ··Port·=·integer() | 356 | ··Port·=·integer() |
| 357 | ··Transport·=·sctp·|·tcp | 357 | ··Transport·=·sctp·|·tcp |
| 358 | ··Protocol··=·diameter·|·radius·|·'tacacs+'</code></pre><p>On·encode,·fields·port,·transport·and·protocol·default·to·3868,·sctp·and | 358 | ··Protocol··=·diameter·|·radius·|·'tacacs+'</code></pre><p>On·encode,·fields·port,·transport·and·protocol·default·to·3868,·sctp·and |
| 359 | diameter·respectively.·The·grammar·of·an·OctetString-valued·DiameterURI()·is·as | 359 | diameter·respectively.·The·grammar·of·an·OctetString-valued·DiameterURI()·is·as |
| 360 | specified·in·section·4.3·of·RFC·6733.·The·record·representation·is·used·on | 360 | specified·in·section·4.3·of·RFC·6733.·The·record·representation·is·used·on |
| 361 | decode.</p><p><a·href=""·id="Enumerated"></a></p><pre><code·class="text">Enumerated()·=·Integer32()</code></pre><p>On·encode,·values·can·be·specified·using·the·macros·defined·in·a·dictionary's | 361 | decode.</p><p><a·href=""·id="Enumerated"></a></p><pre><code·class="text">Enumerated()·=·Integer32()</code></pre><p>On·encode,·values·can·be·specified·using·the·macros·defined·in·a·dictionary's |
| 362 | hrl·file.</p><p><a·href=""·id="IPFilterRule"></a>·<a·href=""·id="QoSFilterRule"></a></p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">IPFilterRule</span><span·class="p"·data-group-id="7127554831-1">(</span><span·class="p"·data-group-id="7127554831-1">)</span><span·class="w">··</span><span·class="o">=</span><span·class="w">·</span><span·class="n">OctetString</span><span·class="p"·data-group-id="7127554831-2">(</span><span·class="p"·data-group-id="7127554831-2">)</span><span·class="w"> | ||
| 363 | 362 | hrl·file.</p><p><a·href=""·id="IPFilterRule"></a>·<a·href=""·id="QoSFilterRule"></a></p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">IPFilterRule</span><span·class="p"·data-group-id="4823687699-1">(</span><span·class="p"·data-group-id="4[·...·truncated·by·diffoscope;·len:·248,·SHA:·40c8d3c61ca4182f72f7434b98baea838826d739413af91711b1370949c39130·...·]"> | |
| 363 | </span><span·class="n">QoSFilterRule</span><span·class="p"·data-group-id="4823687699-3">(</span><span·class="p"·data-group-id="4823687699-3">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">OctetString</span><span·class="p"·data-group-id="4823687699-4">(</span><span·class="p"·data-group-id="4823687699-4">)</span></code></pre><p>Values·of·these·types·are·not·currently·parsed·by·diameter.</p><h2·id="see-also"·class="section-heading"> | ||
| 364 | ··<a·href="#see-also"·class="hover-link"> | 364 | ··<a·href="#see-also"·class="hover-link"> |
| 365 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 365 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 366 | ··</a> | 366 | ··</a> |
| 367 | ··<span·class="text">SEE·ALSO</span> | 367 | ··<span·class="text">SEE·ALSO</span> |
| 368 | </h2> | 368 | </h2> |
| 369 | <p><a·href="diameterc_cmd.html">diameterc(1)</a>,·<a·href="diameter.html"><code·class="inline">diameter</code></a>,·<a·href="diameter_app.html"><code·class="inline">diameter_app</code></a>, | 369 | <p><a·href="diameterc_cmd.html">diameterc(1)</a>,·<a·href="diameter.html"><code·class="inline">diameter</code></a>,·<a·href="diameter_app.html"><code·class="inline">diameter_app</code></a>, |
| 370 | <a·href="diameter_codec.html"><code·class="inline">diameter_codec</code></a>,·<a·href="diameter_make.html"><code·class="inline">diameter_make</code></a></p> | 370 | <a·href="diameter_codec.html"><code·class="inline">diameter_codec</code></a>,·<a·href="diameter_make.html"><code·class="inline">diameter_make</code></a></p> |
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| 405 | ······<p·class="built-using"> | 405 | ······<p·class="built-using"> |
| 406 | ········Built·using | 406 | ········Built·using |
| 407 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 407 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 408 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 408 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 409 | ······</p> | 409 | ······</p> |
| 410 | <p>Copyright·©·1996-202 | 410 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 411 | ····</footer> | 411 | ····</footer> |
| 412 | ··</div> | 412 | ··</div> |
| 413 | </main> | 413 | </main> |
| 414 | </div> | 414 | </div> |
| 415 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 415 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 416 | ··<script> | 416 | ··<script> |
| 417 | ··let·initialized·=·false; | 417 | ··let·initialized·=·false; |
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| 172 | ······<p·class="built-using"> | 172 | ······<p·class="built-using"> |
| 173 | ········Built·using | 173 | ········Built·using |
| 174 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 174 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 175 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 175 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 176 | ······</p> | 176 | ······</p> |
| 177 | <p>Copyright·©·1996-202 | 177 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 178 | ····</footer> | 178 | ····</footer> |
| 179 | ··</div> | 179 | ··</div> |
| 180 | </main> | 180 | </main> |
| 181 | </div> | 181 | </div> |
| 182 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 182 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 183 | ··<script> | 183 | ··<script> |
| 184 | ··let·initialized·=·false; | 184 | ··let·initialized·=·false; |
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| 200 | ······<p·class="built-using"> | 200 | ······<p·class="built-using"> |
| 201 | ········Built·using | 201 | ········Built·using |
| 202 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 202 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 203 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 203 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 204 | ······</p> | 204 | ······</p> |
| 205 | <p>Copyright·©·1996-202 | 205 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 206 | ····</footer> | 206 | ····</footer> |
| 207 | ··</div> | 207 | ··</div> |
| 208 | </main> | 208 | </main> |
| 209 | </div> | 209 | </div> |
| 210 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 210 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 211 | ··<script> | 211 | ··<script> |
| 212 | ··let·initialized·=·false; | 212 | ··let·initialized·=·false; |
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| 520 | ········Built·using | 520 | ········Built·using |
| 521 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 521 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 522 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 522 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 523 | ······</p> | 523 | ······</p> |
| 524 | <p>Copyright·©·1996-202 | 524 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 525 | ····</footer> | 525 | ····</footer> |
| 526 | ··</div> | 526 | ··</div> |
| 527 | </main> | 527 | </main> |
| 528 | </div> | 528 | </div> |
| 529 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 529 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 530 | ··<script> | 530 | ··<script> |
| 531 | ··let·initialized·=·false; | 531 | ··let·initialized·=·false; |
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| 437 | ······<p·class="built-using"> | 437 | ······<p·class="built-using"> |
| 438 | ········Built·using | 438 | ········Built·using |
| 439 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 439 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 440 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 440 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 441 | ······</p> | 441 | ······</p> |
| 442 | <p>Copyright·©·1996-202 | 442 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 443 | ····</footer> | 443 | ····</footer> |
| 444 | ··</div> | 444 | ··</div> |
| 445 | </main> | 445 | </main> |
| 446 | </div> | 446 | </div> |
| 447 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 447 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 448 | ··<script> | 448 | ··<script> |
| 449 | ··let·initialized·=·false; | 449 | ··let·initialized·=·false; |
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| 216 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 216 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 217 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 217 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 218 | ······</p> | 218 | ······</p> |
| 219 | <p>Copyright·©·1996-202 | 219 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 220 | ····</footer> | 220 | ····</footer> |
| 221 | ··</div> | 221 | ··</div> |
| 222 | </main> | 222 | </main> |
| 223 | </div> | 223 | </div> |
| 224 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 224 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 225 | ··<script> | 225 | ··<script> |
| 226 | ··let·initialized·=·false; | 226 | ··let·initialized·=·false; |
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| 188 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 188 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 189 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 189 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 190 | ······</p> | 190 | ······</p> |
| 191 | <p>Copyright·©·1996-202 | 191 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 192 | ····</footer> | 192 | ····</footer> |
| 193 | ··</div> | 193 | ··</div> |
| 194 | </main> | 194 | </main> |
| 195 | </div> | 195 | </div> |
| 196 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 196 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 197 | ··<script> | 197 | ··<script> |
| 198 | ··let·initialized·=·false; | 198 | ··let·initialized·=·false; |
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| 474 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 474 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 475 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 475 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 476 | ······</p> | 476 | ······</p> |
| 477 | <p>Copyright·©·1996-202 | 477 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 478 | ····</footer> | 478 | ····</footer> |
| 479 | ··</div> | 479 | ··</div> |
| 480 | </main> | 480 | </main> |
| 481 | </div> | 481 | </div> |
| 482 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 482 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 483 | ··<script> | 483 | ··<script> |
| 484 | ··let·initialized·=·false; | 484 | ··let·initialized·=·false; |
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| 319 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 319 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 320 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 320 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 321 | ······</p> | 321 | ······</p> |
| 322 | <p>Copyright·©·1996-202 | 322 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 323 | ····</footer> | 323 | ····</footer> |
| 324 | ··</div> | 324 | ··</div> |
| 325 | </main> | 325 | </main> |
| 326 | </div> | 326 | </div> |
| 327 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 327 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 328 | ··<script> | 328 | ··<script> |
| 329 | ··let·initialized·=·false; | 329 | ··let·initialized·=·false; |
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| 172 | ······<p·class="built-using"> | 172 | ······<p·class="built-using"> |
| 173 | ········Built·using | 173 | ········Built·using |
| 174 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 174 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 175 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 175 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 176 | ······</p> | 176 | ······</p> |
| 177 | <p>Copyright·©·1996-202 | 177 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 178 | ····</footer> | 178 | ····</footer> |
| 179 | ··</div> | 179 | ··</div> |
| 180 | </main> | 180 | </main> |
| 181 | </div> | 181 | </div> |
| 182 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 182 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 183 | ··<script> | 183 | ··<script> |
| 184 | ··let·initialized·=·false; | 184 | ··let·initialized·=·false; |
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| 127 | <p>Compile·a·diameter·dictionary·to·Erlang·source.</p><h2·id="synopsis"·class="section-heading"> | 127 | <p>Compile·a·diameter·dictionary·to·Erlang·source.</p><h2·id="synopsis"·class="section-heading"> |
| 128 | ··<a·href="#synopsis"·class="hover-link"> | 128 | ··<a·href="#synopsis"·class="hover-link"> |
| 129 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 129 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 130 | ··</a> | 130 | ··</a> |
| 131 | ··<span·class="text">Synopsis</span> | 131 | ··<span·class="text">Synopsis</span> |
| 132 | </h2> | 132 | </h2> |
| 133 | <pre><code·class="makeup·erlang"·translate="no"><span·class="ss">diameterc</span><span·class="w">·</span><span·class="p"·data-group-id=" | 133 | <pre><code·class="makeup·erlang"·translate="no"><span·class="ss">diameterc</span><span·class="w">·</span><span·class="p"·data-group-id="4555215673-1">[</span><span·class="o"><</span><span·class="ss">options</span><span·class="o">></span><span·class="p"·data-group-id="4555215673-1">]</span><span·class="w">·</span><span·class="o"><</span><span·class="ss">file</span><span·class="o">></span></code></pre><h2·id="description"·class="section-heading"> |
| 134 | ··<a·href="#description"·class="hover-link"> | 134 | ··<a·href="#description"·class="hover-link"> |
| 135 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 135 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 136 | ··</a> | 136 | ··</a> |
| 137 | ··<span·class="text">Description</span> | 137 | ··<span·class="text">Description</span> |
| 138 | </h2> | 138 | </h2> |
| 139 | <p>The·diameterc·utility·is·used·to·compile·a·diameter | 139 | <p>The·diameterc·utility·is·used·to·compile·a·diameter |
| 140 | <a·href="diameter_dict.html">dictionary·file</a>·into·Erlang·source.·The·resulting·source | 140 | <a·href="diameter_dict.html">dictionary·file</a>·into·Erlang·source.·The·resulting·source |
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| 199 | ······<p·class="built-using"> | 199 | ······<p·class="built-using"> |
| 200 | ········Built·using | 200 | ········Built·using |
| 201 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 201 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 202 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 202 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 203 | ······</p> | 203 | ······</p> |
| 204 | <p>Copyright·©·1996-202 | 204 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 205 | ····</footer> | 205 | ····</footer> |
| 206 | ··</div> | 206 | ··</div> |
| 207 | </main> | 207 | </main> |
| 208 | </div> | 208 | </div> |
| 209 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 209 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 210 | ··<script> | 210 | ··<script> |
| 211 | ··let·initialized·=·false; | 211 | ··let·initialized·=·false; |
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| 139 | </h3> | 139 | </h3> |
| 140 | <ul><li><p>With·this·change·diameter·will·not·crash·when·decoding·a·DiameterURI·without·port·number.</p><p>Own·Id:·OTP-19620·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9321"·title="">PR-9321</a></p></li></ul><h3·id="improvements-and-new-features"·class="section-heading"> | 140 | <ul><li><p>With·this·change·diameter·will·not·crash·when·decoding·a·DiameterURI·without·port·number.</p><p>Own·Id:·OTP-19620·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9321"·title="">PR-9321</a></p></li></ul><h3·id="improvements-and-new-features"·class="section-heading"> |
| 141 | ··<a·href="#improvements-and-new-features"·class="hover-link"> | 141 | ··<a·href="#improvements-and-new-features"·class="hover-link"> |
| 142 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 142 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 143 | ··</a> | 143 | ··</a> |
| 144 | ··<span·class="text">Improvements·and·New·Features</span> | 144 | ··<span·class="text">Improvements·and·New·Features</span> |
| 145 | </h3> | 145 | </h3> |
| 146 | <ul><li><p><a·href="https://www.erlang.org/eeps/eep-0069">EEP-69:·Nominal·Types</a>·has·been·implemented.·As·a·side·effect,·nominal·types·can·encode·opaque·types.·We·changed·all·opaque-handling·logic·and·improved·opaque·warnings·in·Dialyzer.</p><p>All·existing·Erlang·type·systems·are·structural:·two·types·are·seen·as·equivalent·if·their·structures·are·the·same.·Type·comparisons·are·based·on·the·structures·of·the·types,·not·on·how·the·user·explicitly·defines·them.·For·example,·in·the·following·example,·<code·class="inline">meter()</code>·and·<code·class="inline">foot()</code>·are·equivalent.·The·two·types·can·be·used·interchangeably.·Neither·of·them·differ·from·the·basic·type·<code·class="inline">integer()</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">type</span><span·class="w">·</span><span·class="nf">meter</span><span·class="p"·data-group-id=" | 146 | <ul><li><p><a·href="https://www.erlang.org/eeps/eep-0069">EEP-69:·Nominal·Types</a>·has·been·implemented.·As·a·side·effect,·nominal·types·can·encode·opaque·types.·We·changed·all·opaque-handling·logic·and·improved·opaque·warnings·in·Dialyzer.</p><p>All·existing·Erlang·type·systems·are·structural:·two·types·are·seen·as·equivalent·if·their·structures·are·the·same.·Type·comparisons·are·based·on·the·structures·of·the·types,·not·on·how·the·user·explicitly·defines·them.·For·example,·in·the·following·example,·<code·class="inline">meter()</code>·and·<code·class="inline">foot()</code>·are·equivalent.·The·two·types·can·be·used·interchangeably.·Neither·of·them·differ·from·the·basic·type·<code·class="inline">integer()</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">type</span><span·class="w">·</span><span·class="nf">meter</span><span·class="p"·data-group-id="6803887305-1">(</span><span·class="p"·data-group-id="6803887305-1">)</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="6803887305-2">(</span><[·...·truncated·by·diffoscope;·len:·39,·SHA:·c213e6c2e2f059064b394fa2b93dada5d0aad7ca9d14dd480cca08497e9ec333·...·]5-2">)</span><span·class="p">.</span><span·class="w"> |
| 147 | </span><span·class="p">-</span><span·class="na">type</span><span·class="w">·</span><span·class="nf">foot</span><span·class="p"·data-group-id=" | 147 | </span><span·class="p">-</span><span·class="na">type</span><span·class="w">·</span><span·class="nf">foot</span><span·class="p"·data-group-id="6803887305-3">(</span><span·class="p"·data-group-id="6803887305-3">)</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="6803887305-4">(</span><[·...·truncated·by·diffoscope;·len:·1060,·SHA:·10ea543ddcb48c8e4a1a18612f9c8e83dc4352202b12d8acec60e93181305a5d·...·]3-2">)</span><span·class="p">.</span><span·class="w"> |
| 148 | </span><span·class="p">-</span><span·class="na">nominal</span><span·class="w">·</span><span·class="nf">foot</span><span·class="p"·data-group-id=" | 148 | </span><span·class="p">-</span><span·class="na">nominal</span><span·class="w">·</span><span·class="nf">foot</span><span·class="p"·data-group-id="4164992993-3">(</span><span·class="p"·data-group-id="4164992993-3">)</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="4164992993-4">(</span><[·...·truncated·by·diffoscope;·len:·39,·SHA:·a8fabd0cba602ab549a5751f44875eaf57fb3f3342fcae4c339809a315ae6c2b·...·]3-4">)</span><span·class="p">.</span></code></pre><p>More·nominal·type-checking·rules·can·be·found·in·the·EEP.·It·is·worth·noting·that·most·work·for·adding·nominal·types·and·type-checking·is·in·<code·class="inline">erl_types.erl</code>.·The·rest·are·changes·that·removed·the·previous·opaque·type-checking,·and·added·an·improved·version·of·it·using·nominal·type-checking·with·reworked·warnings.</p><p>Backwards·compatibility·for·opaque·type-checking·is·not·preserved·by·this·PR.·Previous·opaque·warnings·can·appear·with·slightly·different·wordings.·A·new·kind·of·opaque·warning·<code·class="inline">opaque_union</code>·is·added,·together·with·a·Dialyzer·option·<code·class="inline">no_opaque_union</code>·to·turn·this·kind·of·warnings·off.</p><p>Own·Id:·OTP-19364·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9079"·title="">PR-9079</a></p></li><li><p>The·license·and·copyright·header·has·changed·format·to·include·an·<code·class="inline">SPDX-License-Identifier</code>.·At·the·same·time,·most·files·have·been·updated·to·follow·a·uniform·standard·for·license·headers.</p><p>Own·Id:·OTP-19575·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9670"·title="">PR-9670</a></p></li><li><p>With·this·change·diameter·will·not·use·slave·terminology</p><p>Own·Id:·OTP-19621·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9786"·title="">PR-9786</a></p></li></ul><h2·id="diameter-2-4-1"·class="section-heading"> |
| 149 | ··<a·href="#diameter-2-4-1"·class="hover-link"> | 149 | ··<a·href="#diameter-2-4-1"·class="hover-link"> |
| 150 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 150 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 151 | ··</a> | 151 | ··</a> |
| 152 | ··<span·class="text">diameter·2.4.1</span> | 152 | ··<span·class="text">diameter·2.4.1</span> |
| 153 | </h2> | 153 | </h2> |
| 154 | <h3·id="fixed-bugs-and-malfunctions-1"·class="section-heading"> | 154 | <h3·id="fixed-bugs-and-malfunctions-1"·class="section-heading"> |
| 155 | ··<a·href="#fixed-bugs-and-malfunctions-1"·class="hover-link"> | 155 | ··<a·href="#fixed-bugs-and-malfunctions-1"·class="hover-link"> |
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| 1380 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1380 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1381 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1381 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1382 | ······</p> | 1382 | ······</p> |
| 1383 | <p>Copyright·©·1996-202 | 1383 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1384 | ····</footer> | 1384 | ····</footer> |
| 1385 | ··</div> | 1385 | ··</div> |
| 1386 | </main> | 1386 | </main> |
| 1387 | </div> | 1387 | </div> |
| 1388 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1388 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1389 | ··<script> | 1389 | ··<script> |
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| 144 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 144 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 145 | ······</p> | 145 | ······</p> |
| 146 | <p>Copyright·©·1996-202 | 146 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 147 | ····</footer> | 147 | ····</footer> |
| 148 | ··</div> | 148 | ··</div> |
| 149 | </main> | 149 | </main> |
| 150 | </div> | 150 | </div> |
| 151 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 151 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 152 | ··<script> | 152 | ··<script> |
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| 143 | ······</p> | 143 | ······</p> |
| 144 | <p>Copyright·©·1996-202 | 144 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 145 | ····</footer> | 145 | ····</footer> |
| 146 | ··</div> | 146 | ··</div> |
| 147 | </main> | 147 | </main> |
| 148 | </div> | 148 | </div> |
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| 150 | ··<script> | 150 | ··<script> |
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| 260 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 260 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 261 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 261 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 262 | ······</p> | 262 | ······</p> |
| 263 | <p>Copyright·©·1996-202 | 263 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 264 | ····</footer> | 264 | ····</footer> |
| 265 | ··</div> | 265 | ··</div> |
| 266 | </main> | 266 | </main> |
| 267 | </div> | 267 | </div> |
| 268 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 268 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 269 | ··<script> | 269 | ··<script> |
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| 837 | ······</p> | 837 | ······</p> |
| 838 | <p>Copyright·©·1996-202 | 838 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 839 | ····</footer> | 839 | ····</footer> |
| 840 | ··</div> | 840 | ··</div> |
| 841 | </main> | 841 | </main> |
| 842 | </div> | 842 | </div> |
| 843 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 843 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 233 | ········Built·using | 233 | ········Built·using |
| 234 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 234 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 235 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 235 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 236 | ······</p> | 236 | ······</p> |
| 237 | <p>Copyright·©·1996-202 | 237 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 238 | ····</footer> | 238 | ····</footer> |
| 239 | ··</div> | 239 | ··</div> |
| 240 | </main> | 240 | </main> |
| 241 | </div> | 241 | </div> |
| 242 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 242 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 243 | ··<script> | 243 | ··<script> |
| 244 | ··let·initialized·=·false; | 244 | ··let·initialized·=·false; |
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| 1341 | ······<p·class="built-using"> | 1341 | ······<p·class="built-using"> |
| 1342 | ········Built·using | 1342 | ········Built·using |
| 1343 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1343 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1344 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1344 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1345 | ······</p> | 1345 | ······</p> |
| 1346 | <p>Copyright·©·1996-202 | 1346 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1347 | ····</footer> | 1347 | ····</footer> |
| 1348 | ··</div> | 1348 | ··</div> |
| 1349 | </main> | 1349 | </main> |
| 1350 | </div> | 1350 | </div> |
| 1351 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1351 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1352 | ··<script> | 1352 | ··<script> |
| 1353 | ··let·initialized·=·false; | 1353 | ··let·initialized·=·false; |
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| 183 | ······<p·class="built-using"> | 183 | ······<p·class="built-using"> |
| 184 | ········Built·using | 184 | ········Built·using |
| 185 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 185 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 186 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 186 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 187 | ······</p> | 187 | ······</p> |
| 188 | <p>Copyright·©·1996-202 | 188 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 189 | ····</footer> | 189 | ····</footer> |
| 190 | ··</div> | 190 | ··</div> |
| 191 | </main> | 191 | </main> |
| 192 | </div> | 192 | </div> |
| 193 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 193 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 194 | ··<script> | 194 | ··<script> |
| 195 | ··let·initialized·=·false; | 195 | ··let·initialized·=·false; |
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| 428 | ······<p·class="built-using"> | 428 | ······<p·class="built-using"> |
| 429 | ········Built·using | 429 | ········Built·using |
| 430 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 430 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 431 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 431 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 432 | ······</p> | 432 | ······</p> |
| 433 | <p>Copyright·©·1996-202 | 433 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 434 | ····</footer> | 434 | ····</footer> |
| 435 | ··</div> | 435 | ··</div> |
| 436 | </main> | 436 | </main> |
| 437 | </div> | 437 | </div> |
| 438 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 438 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 439 | ··<script> | 439 | ··<script> |
| 440 | ··let·initialized·=·false; | 440 | ··let·initialized·=·false; |
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| 212 | ······<p·class="built-using"> | 212 | ······<p·class="built-using"> |
| 213 | ········Built·using | 213 | ········Built·using |
| 214 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 214 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 215 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 215 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 216 | ······</p> | 216 | ······</p> |
| 217 | <p>Copyright·©·1996-202 | 217 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 218 | ····</footer> | 218 | ····</footer> |
| 219 | ··</div> | 219 | ··</div> |
| 220 | </main> | 220 | </main> |
| 221 | </div> | 221 | </div> |
| 222 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 222 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 223 | ··<script> | 223 | ··<script> |
| 224 | ··let·initialized·=·false; | 224 | ··let·initialized·=·false; |
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| 124 | ····<span·translate="no">edoc_doclet_markdown</span>· | 124 | ····<span·translate="no">edoc_doclet_markdown</span>· |
| 125 | ····<small·class="app-vsn"·translate="no">(edoc·v1.4)</small> | 125 | ····<small·class="app-vsn"·translate="no">(edoc·v1.4)</small> |
| 126 | ··</h1> | 126 | ··</h1> |
| 127 | ····<section·id="moduledoc"> | 127 | ····<section·id="moduledoc"> |
| 128 | <p>Doclet·converting·an·edoc·application·to·use·<a·href="https://www.erlang.org/eeps/eep-0059">EEP-59</a>·and·Markdown.</p><p>This·doclet·has·to·be·used·together·with·<a·href="edoc_layout_chunks.html"><code>edoc_layout_chunks</code></a>.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">·</span><span·class="mi">1</span><span·class="o">></span><span·class="w">·</span><span·class="nc">edoc</span><span·class="p">:</span><span·class="nf">application</span><span·class="p"·data-group-id=" | 128 | <p>Doclet·converting·an·edoc·application·to·use·<a·href="https://www.erlang.org/eeps/eep-0059">EEP-59</a>·and·Markdown.</p><p>This·doclet·has·to·be·used·together·with·<a·href="edoc_layout_chunks.html"><code>edoc_layout_chunks</code></a>.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">·</span><span·class="mi">1</span><span·class="o">></span><span·class="w">·</span><span·class="nc">edoc</span><span·class="p">:</span><span·class="nf">application</span><span·class="p"·data-group-id="4842112977-1">(</span><span·class="ss">example</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4842112977-2">[</span><span·class="p"·data-group-id="4842112977-3">{</span><span·class="ss">preprocess</span><span·class="p"[·...·truncated·by·diffoscope;·len:·377,·SHA:·f7f23a4cd5554a3d532df98ef9bbd7778cd9ca3db268dc545d19cc950f39cb70·...·]7-4">}</span><span·class="p">,</span><span·class="w"> |
| 129 | ·······</span><span·class="p"·data-group-id=" | 129 | ·······</span><span·class="p"·data-group-id="4842112977-5">{</span><span·class="ss">layout</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">edoc_layout_chunks</span><span·class="p"·data-group-id="4842112977-5">}</span><span·class="p"·data-group-id="4842112977-2">]</span><span·cl[·...·truncated·by·diffoscope;·len:·32,·SHA:·d9f9c2ed1b59d2a95c21b8b3578145587e105789e25c9bc15adefba9b3b8ef5b·...·]7-1">)</span><span·class="p">.</span></code></pre><p>It·will·convert·the·overview·to·Markdown·and·any·module·documentation·to·use·<code>-doc</code>·attributes·and·Markdown.·Any·XHTML·tags·in·the·edoc·documentation·that·are·not·part·of·the·tags·supported·by·<a·href="doc_storage.html#erlang-documentation-format">Erlang·Documentation·Format</a>·will·be·added·as·HTML·tags·in·the·Markdown.</p><p>It·does·not·delete·the·old·edoc·documentation.</p><p><em>See·also:·</em><a·href="edoc_layout_chunks.html">edoc_layout_chunks</a>.</p> |
| 130 | ····</section> | 130 | ····</section> |
| 131 | </div> | 131 | </div> |
| 132 | ··<section·id="summary"·class="details-list"> | 132 | ··<section·id="summary"·class="details-list"> |
| 133 | ····<h1·class="section-heading"> | 133 | ····<h1·class="section-heading"> |
| 134 | ······<a·class="hover-link"·href="#summary"> | 134 | ······<a·class="hover-link"·href="#summary"> |
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| 213 | ······<p·class="built-using"> | 213 | ······<p·class="built-using"> |
| 214 | ········Built·using | 214 | ········Built·using |
| 215 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 215 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 216 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 216 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 217 | ······</p> | 217 | ······</p> |
| 218 | <p>Copyright·©·1996-202 | 218 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 219 | ····</footer> | 219 | ····</footer> |
| 220 | ··</div> | 220 | ··</div> |
| 221 | </main> | 221 | </main> |
| 222 | </div> | 222 | </div> |
| 223 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 223 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 224 | ··<script> | 224 | ··<script> |
| 225 | ··let·initialized·=·false; | 225 | ··let·initialized·=·false; |
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| 627 | ······<p·class="built-using"> | 627 | ······<p·class="built-using"> |
| 628 | ········Built·using | 628 | ········Built·using |
| 629 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 629 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 630 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 630 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 631 | ······</p> | 631 | ······</p> |
| 632 | <p>Copyright·©·1996-202 | 632 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 633 | ····</footer> | 633 | ····</footer> |
| 634 | ··</div> | 634 | ··</div> |
| 635 | </main> | 635 | </main> |
| 636 | </div> | 636 | </div> |
| 637 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 637 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 638 | ··<script> | 638 | ··<script> |
| 639 | ··let·initialized·=·false; | 639 | ··let·initialized·=·false; |
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| 213 | ······<p·class="built-using"> | 213 | ······<p·class="built-using"> |
| 214 | ········Built·using | 214 | ········Built·using |
| 215 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 215 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 216 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 216 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 217 | ······</p> | 217 | ······</p> |
| 218 | <p>Copyright·©·1996-202 | 218 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 219 | ····</footer> | 219 | ····</footer> |
| 220 | ··</div> | 220 | ··</div> |
| 221 | </main> | 221 | </main> |
| 222 | </div> | 222 | </div> |
| 223 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 223 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 224 | ··<script> | 224 | ··<script> |
| 225 | ··let·initialized·=·false; | 225 | ··let·initialized·=·false; |
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| 391 | ······<p·class="built-using"> | 391 | ······<p·class="built-using"> |
| 392 | ········Built·using | 392 | ········Built·using |
| 393 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 393 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 394 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 394 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 395 | ······</p> | 395 | ······</p> |
| 396 | <p>Copyright·©·1996-202 | 396 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 397 | ····</footer> | 397 | ····</footer> |
| 398 | ··</div> | 398 | ··</div> |
| 399 | </main> | 399 | </main> |
| 400 | </div> | 400 | </div> |
| 401 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 401 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 402 | ··<script> | 402 | ··<script> |
| 403 | ··let·initialized·=·false; | 403 | ··let·initialized·=·false; |
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| 716 | ······<p·class="built-using"> | 716 | ······<p·class="built-using"> |
| 717 | ········Built·using | 717 | ········Built·using |
| 718 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 718 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 719 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 719 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 720 | ······</p> | 720 | ······</p> |
| 721 | <p>Copyright·©·1996-202 | 721 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 722 | ····</footer> | 722 | ····</footer> |
| 723 | ··</div> | 723 | ··</div> |
| 724 | </main> | 724 | </main> |
| 725 | </div> | 725 | </div> |
| 726 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 726 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 727 | ··<script> | 727 | ··<script> |
| 728 | ··let·initialized·=·false; | 728 | ··let·initialized·=·false; |
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| 431 | ······<p·class="built-using"> | 431 | ······<p·class="built-using"> |
| 432 | ········Built·using | 432 | ········Built·using |
| 433 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 433 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 434 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 434 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 435 | ······</p> | 435 | ······</p> |
| 436 | <p>Copyright·©·1996-202 | 436 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 437 | ····</footer> | 437 | ····</footer> |
| 438 | ··</div> | 438 | ··</div> |
| 439 | </main> | 439 | </main> |
| 440 | </div> | 440 | </div> |
| 441 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 441 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 442 | ··<script> | 442 | ··<script> |
| 443 | ··let·initialized·=·false; | 443 | ··let·initialized·=·false; |
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| 346 | ······<p·class="built-using"> | 346 | ······<p·class="built-using"> |
| 347 | ········Built·using | 347 | ········Built·using |
| 348 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 348 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 349 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 349 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 350 | ······</p> | 350 | ······</p> |
| 351 | <p>Copyright·©·1996-202 | 351 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 352 | ····</footer> | 352 | ····</footer> |
| 353 | ··</div> | 353 | ··</div> |
| 354 | </main> | 354 | </main> |
| 355 | </div> | 355 | </div> |
| 356 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 356 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 357 | ··<script> | 357 | ··<script> |
| 358 | ··let·initialized·=·false; | 358 | ··let·initialized·=·false; |
| Offset 139, 17 lines modified | Offset 139, 17 lines modified | ||
| 139 | </h3> | 139 | </h3> |
| 140 | <ul><li><p>Refactor·code·to·not·rely·on·<code·class="inline">+nowarn_shadow_vars</code>.</p><p>Own·Id:·OTP-19574·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9678"·title="">PR-9678</a></p></li></ul><h3·id="improvements-and-new-features"·class="section-heading"> | 140 | <ul><li><p>Refactor·code·to·not·rely·on·<code·class="inline">+nowarn_shadow_vars</code>.</p><p>Own·Id:·OTP-19574·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9678"·title="">PR-9678</a></p></li></ul><h3·id="improvements-and-new-features"·class="section-heading"> |
| 141 | ··<a·href="#improvements-and-new-features"·class="hover-link"> | 141 | ··<a·href="#improvements-and-new-features"·class="hover-link"> |
| 142 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 142 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 143 | ··</a> | 143 | ··</a> |
| 144 | ··<span·class="text">Improvements·and·New·Features</span> | 144 | ··<span·class="text">Improvements·and·New·Features</span> |
| 145 | </h3> | 145 | </h3> |
| 146 | <ul><li><p><a·href="https://www.erlang.org/eeps/eep-0069">EEP-69:·Nominal·Types</a>·has·been·implemented.·As·a·side·effect,·nominal·types·can·encode·opaque·types.·We·changed·all·opaque-handling·logic·and·improved·opaque·warnings·in·Dialyzer.</p><p>All·existing·Erlang·type·systems·are·structural:·two·types·are·seen·as·equivalent·if·their·structures·are·the·same.·Type·comparisons·are·based·on·the·structures·of·the·types,·not·on·how·the·user·explicitly·defines·them.·For·example,·in·the·following·example,·<code·class="inline">meter()</code>·and·<code·class="inline">foot()</code>·are·equivalent.·The·two·types·can·be·used·interchangeably.·Neither·of·them·differ·from·the·basic·type·<code·class="inline">integer()</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">type</span><span·class="w">·</span><span·class="nf">meter</span><span·class="p"·data-group-id=" | 146 | <ul><li><p><a·href="https://www.erlang.org/eeps/eep-0069">EEP-69:·Nominal·Types</a>·has·been·implemented.·As·a·side·effect,·nominal·types·can·encode·opaque·types.·We·changed·all·opaque-handling·logic·and·improved·opaque·warnings·in·Dialyzer.</p><p>All·existing·Erlang·type·systems·are·structural:·two·types·are·seen·as·equivalent·if·their·structures·are·the·same.·Type·comparisons·are·based·on·the·structures·of·the·types,·not·on·how·the·user·explicitly·defines·them.·For·example,·in·the·following·example,·<code·class="inline">meter()</code>·and·<code·class="inline">foot()</code>·are·equivalent.·The·two·types·can·be·used·interchangeably.·Neither·of·them·differ·from·the·basic·type·<code·class="inline">integer()</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">type</span><span·class="w">·</span><span·class="nf">meter</span><span·class="p"·data-group-id="9237007093-1">(</span><span·class="p"·data-group-id="9237007093-1">)</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="9237007093-2">(</span><[·...·truncated·by·diffoscope;·len:·39,·SHA:·253cc0b5cfdcfc05498ff1c9c20d7b5a205200bdd75c96166277b2b47284ba5d·...·]3-2">)</span><span·class="p">.</span><span·class="w"> |
| 147 | </span><span·class="p">-</span><span·class="na">type</span><span·class="w">·</span><span·class="nf">foot</span><span·class="p"·data-group-id=" | 147 | </span><span·class="p">-</span><span·class="na">type</span><span·class="w">·</span><span·class="nf">foot</span><span·class="p"·data-group-id="9237007093-3">(</span><span·class="p"·data-group-id="9237007093-3">)</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="9237007093-4">(</span><[·...·truncated·by·diffoscope;·len:·1061,·SHA:·c395325cbc6fef6a62c42dcc9e245dfdbb8681f2ba06dd82f077cb4163af2570·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 148 | </span><span·class="p">-</span><span·class="na">nominal</span><span·class="w">·</span><span·class="nf">foot</span><span·class="p"·data-group-id="7 | 148 | </span><span·class="p">-</span><span·class="na">nominal</span><span·class="w">·</span><span·class="nf">foot</span><span·class="p"·data-group-id="7838299582-3">(</span><span·class="p"·data-group-id="7838299582-3">)</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="7838299582-4">(</span><s[·...·truncated·by·diffoscope;·len:·39,·SHA:·8f9134bac7ae41656c6d9869790914e7f58ce4bfe0ce8ce66ed2c55496f11de6·...·]-4">)</span><span·class="p">.</span></code></pre><p>More·nominal·type-checking·rules·can·be·found·in·the·EEP.·It·is·worth·noting·that·most·work·for·adding·nominal·types·and·type-checking·is·in·<code·class="inline">erl_types.erl</code>.·The·rest·are·changes·that·removed·the·previous·opaque·type-checking,·and·added·an·improved·version·of·it·using·nominal·type-checking·with·reworked·warnings.</p><p>Backwards·compatibility·for·opaque·type-checking·is·not·preserved·by·this·PR.·Previous·opaque·warnings·can·appear·with·slightly·different·wordings.·A·new·kind·of·opaque·warning·<code·class="inline">opaque_union</code>·is·added,·together·with·a·Dialyzer·option·<code·class="inline">no_opaque_union</code>·to·turn·this·kind·of·warnings·off.</p><p>Own·Id:·OTP-19364·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9079"·title="">PR-9079</a></p></li><li><p>The·license·and·copyright·header·has·changed·format·to·include·an·<code·class="inline">SPDX-License-Identifier</code>.·At·the·same·time,·most·files·have·been·updated·to·follow·a·uniform·standard·for·license·headers.</p><p>Own·Id:·OTP-19575·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9670"·title="">PR-9670</a></p></li></ul><h2·id="edoc-1-3-2"·class="section-heading"> |
| 149 | ··<a·href="#edoc-1-3-2"·class="hover-link"> | 149 | ··<a·href="#edoc-1-3-2"·class="hover-link"> |
| 150 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 150 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 151 | ··</a> | 151 | ··</a> |
| 152 | ··<span·class="text">Edoc·1.3.2</span> | 152 | ··<span·class="text">Edoc·1.3.2</span> |
| 153 | </h2> | 153 | </h2> |
| 154 | <h3·id="fixed-bugs-and-malfunctions-1"·class="section-heading"> | 154 | <h3·id="fixed-bugs-and-malfunctions-1"·class="section-heading"> |
| 155 | ··<a·href="#fixed-bugs-and-malfunctions-1"·class="hover-link"> | 155 | ··<a·href="#fixed-bugs-and-malfunctions-1"·class="hover-link"> |
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| 872 | ······<p·class="built-using"> | 872 | ······<p·class="built-using"> |
| 873 | ········Built·using | 873 | ········Built·using |
| 874 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 874 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 875 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 875 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 876 | ······</p> | 876 | ······</p> |
| 877 | <p>Copyright·©·1996-202 | 877 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 878 | ····</footer> | 878 | ····</footer> |
| 879 | ··</div> | 879 | ··</div> |
| 880 | </main> | 880 | </main> |
| 881 | </div> | 881 | </div> |
| 882 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 882 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 883 | ··<script> | 883 | ··<script> |
| 884 | ··let·initialized·=·false; | 884 | ··let·initialized·=·false; |
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| 137 | ······<p·class="built-using"> | 137 | ······<p·class="built-using"> |
| 138 | ········Built·using | 138 | ········Built·using |
| 139 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 139 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 140 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 140 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 141 | ······</p> | 141 | ······</p> |
| 142 | <p>Copyright·©·1996-202 | 142 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 143 | ····</footer> | 143 | ····</footer> |
| 144 | ··</div> | 144 | ··</div> |
| 145 | </main> | 145 | </main> |
| 146 | </div> | 146 | </div> |
| 147 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 147 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 148 | ··<script> | 148 | ··<script> |
| 149 | ··let·initialized·=·false; | 149 | ··let·initialized·=·false; |
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| 143 | ······<p·class="built-using"> | 143 | ······<p·class="built-using"> |
| 144 | ········Built·using | 144 | ········Built·using |
| 145 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 145 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 146 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 146 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 147 | ······</p> | 147 | ······</p> |
| 148 | <p>Copyright·©·1996-202 | 148 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 149 | ····</footer> | 149 | ····</footer> |
| 150 | ··</div> | 150 | ··</div> |
| 151 | </main> | 151 | </main> |
| 152 | </div> | 152 | </div> |
| 153 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 153 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 154 | ··<script> | 154 | ··<script> |
| 155 | ··let·initialized·=·false; | 155 | ··let·initialized·=·false; |
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| 181 | ······<p·class="built-using"> | 181 | ······<p·class="built-using"> |
| 182 | ········Built·using | 182 | ········Built·using |
| 183 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 183 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 184 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 184 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 185 | ······</p> | 185 | ······</p> |
| 186 | <p>Copyright·©·1996-202 | 186 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 187 | ····</footer> | 187 | ····</footer> |
| 188 | ··</div> | 188 | ··</div> |
| 189 | </main> | 189 | </main> |
| 190 | </div> | 190 | </div> |
| 191 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 191 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 192 | ··<script> | 192 | ··<script> |
| 193 | ··let·initialized·=·false; | 193 | ··let·initialized·=·false; |
| Offset 951, 21 lines modified | Offset 951, 21 lines modified | ||
| 951 | ·················Dn·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:string/0">string</a>(), | 951 | ·················Dn·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:string/0">string</a>(), |
| 952 | ·················Attributes·::·[<a·href="#t:attribute/0">attribute</a>()], | 952 | ·················Attributes·::·[<a·href="#t:attribute/0">attribute</a>()], |
| 953 | ·················Refs·::·{referral,·<a·href="#t:referrals/0">referrals</a>()}, | 953 | ·················Refs·::·{referral,·<a·href="#t:referrals/0">referrals</a>()}, |
| 954 | ·················Reason·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>().</pre> | 954 | ·················Reason·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>().</pre> |
| 955 | ······</div> | 955 | ······</div> |
| 956 | <p>Add·an·entry.·The·entry·must·not·exist.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">··</span><span·class="nf">add</span><span·class="p"·data-group-id=" | 956 | <p>Add·an·entry.·The·entry·must·not·exist.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">··</span><span·class="nf">add</span><span·class="p"·data-group-id="0846586314-1">(</span><span·class="n">Handle</span><span·class="p">,</span><span·class="w"> |
| 957 | ······</span><span·class="s">"cn=Bill·Valentine,·ou=people,·o=Example·Org,·dc=example,·dc=com"</span><span·class="p">,</span><span·class="w"> | 957 | ······</span><span·class="s">"cn=Bill·Valentine,·ou=people,·o=Example·Org,·dc=example,·dc=com"</span><span·class="p">,</span><span·class="w"> |
| 958 | ·······</span><span·class="p"·data-group-id=" | 958 | ·······</span><span·class="p"·data-group-id="0846586314-2">[</span><span·class="p"·data-group-id="0846586314-3">{</span><span·class="s">"objectclass"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0846586314-4">[</span><span·class="s">"person"[·...·truncated·by·diffoscope;·len:·101,·SHA:·422628fa061925d36528510b449c40f84801915c3e7e44509eceea1d24689643·...·]-3">}</span><span·class="p">,</span><span·class="w"> |
| 959 | ········</span><span·class="p"·data-group-id=" | 959 | ········</span><span·class="p"·data-group-id="0846586314-5">{</span><span·class="s">"cn"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0846586314-6">[</span><span·class="s">"Bill·Valentine"</span><span·class="p"·data-group-id="0846586314-6">]<[·...·truncated·by·diffoscope;·len:·47,·SHA:·a2d14c1ecff444d2a598ffaa76509fc785b7ee161ee0f207aed001fb62a9ebd5·...·]-5">}</span><span·class="p">,</span><span·class="w"> |
| 960 | ········</span><span·class="p"·data-group-id=" | 960 | ········</span><span·class="p"·data-group-id="0846586314-7">{</span><span·class="s">"sn"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0846586314-8">[</span><span·class="s">"Valentine"</span><span·class="p"·data-group-id="0846586314-8">]</span[·...·truncated·by·diffoscope;·len:·42,·SHA:·b55bf571388c39ae8fa6c4c59e6288140fb00d774fa8e7d23e450d84b40ce0c3·...·]-7">}</span><span·class="p">,</span><span·class="w"> |
| 961 | ········</span><span·class="p"·data-group-id=" | 961 | ········</span><span·class="p"·data-group-id="0846586314-9">{</span><span·class="s">"telephoneNumber"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0846586314-10">[</span><span·class="s">"545·555·00"</span><span·class="p"·data-group-id="084658[·...·truncated·by·diffoscope;·len:·111,·SHA:·4a6238a988eb7523d03005deca01687bd33e5565f9d6eddc22376f799b767aea·...·]-2">]</span><span·class="w"> |
| 962 | ·····</span><span·class="p"·data-group-id=" | 962 | ·····</span><span·class="p"·data-group-id="0846586314-1">)</span></code></pre> |
| 963 | ··</section> | 963 | ··</section> |
| 964 | </section> | 964 | </section> |
| 965 | <section·class="detail"·id="and/1"> | 965 | <section·class="detail"·id="and/1"> |
| 966 | ··<div·class="detail-header"> | 966 | ··<div·class="detail-header"> |
| 967 | ····<a·href="#and/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 967 | ····<a·href="#and/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 968 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 968 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
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| 1249 | ·····························OptionalAttrs·:: | 1249 | ·····························OptionalAttrs·:: |
| 1250 | ·································[{matchingRule,·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:string/0">string</a>()}·| | 1250 | ·································[{matchingRule,·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:string/0">string</a>()}·| |
| 1251 | ··································{type,·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:string/0">string</a>()}·| | 1251 | ··································{type,·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:string/0">string</a>()}·| |
| 1252 | ··································{dnAttributes,·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:boolean/0">boolean</a>()}].</pre> | 1252 | ··································{dnAttributes,·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:boolean/0">boolean</a>()}].</pre> |
| 1253 | ······</div> | 1253 | ······</div> |
| 1254 | <p>Creates·an·extensible·match·filter.·For·example,</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">··</span><span·class="nc">eldap</span><span·class="p">:</span><span·class="nf">extensibleMatch</span><span·class="p"·data-group-id=" | 1254 | <p>Creates·an·extensible·match·filter.·For·example,</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">··</span><span·class="nc">eldap</span><span·class="p">:</span><span·class="nf">extensibleMatch</span><span·class="p"·data-group-id="9266037654-1">(</span><span·class="s">"Bar"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9266037654-2">[</span><span·class="p"·data-group-id="9266037654-3">{</span><span·class="ss">type</span><span·class="p[·...·truncated·by·diffoscope;·len:·457,·SHA:·ba3dddaaedff3d85ec9e1d1ff737e3f5272c1e5a0b78b67850fa3c65353d164e·...·]-1">)</span><span·class="p">)</span></code></pre><p>creates·a·filter·which·performs·a·<code·class="inline">caseExactMatch</code>·on·the·attribute·<code·class="inline">sn</code>·and |
| 1255 | matches·with·the·value·<code·class="inline">"Bar"</code>.·The·default·value·of·<code·class="inline">dnAttributes</code>·is·<code·class="inline">false</code>.</p> | 1255 | matches·with·the·value·<code·class="inline">"Bar"</code>.·The·default·value·of·<code·class="inline">dnAttributes</code>·is·<code·class="inline">false</code>.</p> |
| 1256 | ··</section> | 1256 | ··</section> |
| 1257 | </section> | 1257 | </section> |
| 1258 | <section·class="detail"·id="greaterOrEqual/2"> | 1258 | <section·class="detail"·id="greaterOrEqual/2"> |
| 1259 | ··<div·class="detail-header"> | 1259 | ··<div·class="detail-header"> |
| 1260 | ····<a·href="#greaterOrEqual/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 1260 | ····<a·href="#greaterOrEqual/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| Offset 1453, 17 lines modified | Offset 1453, 17 lines modified | ||
| 1453 | ····················Dn·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:string/0">string</a>(), | 1453 | ····················Dn·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:string/0">string</a>(), |
| 1454 | ····················ModifyOps·::·[<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>()], | 1454 | ····················ModifyOps·::·[<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>()], |
| 1455 | ····················Refs·::·{referral,·<a·href="#t:referrals/0">referrals</a>()}, | 1455 | ····················Refs·::·{referral,·<a·href="#t:referrals/0">referrals</a>()}, |
| 1456 | ····················Reason·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>().</pre> | 1456 | ····················Reason·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>().</pre> |
| 1457 | ······</div> | 1457 | ······</div> |
| 1458 | <p>Modify·an·entry.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">··</span><span·class="nf">modify</span><span·class="p"·data-group-id=" | 1458 | <p>Modify·an·entry.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">··</span><span·class="nf">modify</span><span·class="p"·data-group-id="1102051026-1">(</span><span·class="n">Handle</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"cn=Bill·Valentine,·ou=people,·o=Example·Org,·dc=example,·dc=com"</span><span·class="p">,</span><span·class="w"> |
| 1459 | ·········</span><span·class="p"·data-group-id=" | 1459 | ·········</span><span·class="p"·data-group-id="1102051026-2">[</span><span·class="nc">eldap</span><span·class="p">:</span><span·class="nf">mod_replace</span><span·class="p"·data-group-id="1102051026-3">(</span><span·class="s">"telephoneNumber"</span><span·class="p">,</span><span·class="w">·</[·...·truncated·by·diffoscope;·len:·197,·SHA:·aaceb59a35721eb84ca8e99410cb1fecc8be4c565d552c8530c7242636770dc3·...·]-3">)</span><span·class="p">,</span><span·class="w"> |
| 1460 | » ··</span><span·class="nc">eldap</span><span·class="p">:</span><span·class="nf">mod_add</span><span·class="p"·data-group-id=" | 1460 | » ··</span><span·class="nc">eldap</span><span·class="p">:</span><span·class="nf">mod_add</span><span·class="p"·data-group-id="1102051026-5">(</span><span·class="s">"description"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1102051026-6">[</span><span·class="s">"LDAP·Hacker"</span><span·class="p"·data-group-id="1102051026[·...·truncated·by·diffoscope;·len:·183,·SHA:·e53fed36cbfaa37be5b090c17c3c8bfe3b1074c0c544a7bb8c6572306e519ea7·...·]-1">)</span></code></pre> |
| 1461 | ··</section> | 1461 | ··</section> |
| 1462 | </section> | 1462 | </section> |
| 1463 | <section·class="detail"·id="modify_dn/5"> | 1463 | <section·class="detail"·id="modify_dn/5"> |
| 1464 | ··<div·class="detail-header"> | 1464 | ··<div·class="detail-header"> |
| 1465 | ····<a·href="#modify_dn/5"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 1465 | ····<a·href="#modify_dn/5"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 1466 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 1466 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 1757, 16 lines modified | Offset 1757, 16 lines modified | ||
| 1757 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·paged_result_control(PageSize)·->·{control,·ControlOID,·true,·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:binary/0">binary</a>()} | 1757 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·paged_result_control(PageSize)·->·{control,·ControlOID,·true,·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:binary/0">binary</a>()} |
| 1758 | ······························when·PageSize·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:integer/0">integer</a>(),·ControlOID·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:string/0">string</a>().</pre> | 1758 | ······························when·PageSize·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:integer/0">integer</a>(),·ControlOID·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:string/0">string</a>().</pre> |
| 1759 | ······</div> | 1759 | ······</div> |
| 1760 | <p>Paged·results·is·an·extension·to·the·LDAP·protocol·specified·by·RFC2696</p><p>This·function·creates·a·control·with·the·specified·page·size·for·use·in | 1760 | <p>Paged·results·is·an·extension·to·the·LDAP·protocol·specified·by·RFC2696</p><p>This·function·creates·a·control·with·the·specified·page·size·for·use·in |
| 1761 | <code·class="inline">search/3</code>,·for·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Control</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">eldap</span><span·class="p">:</span><span·class="nf">paged_result_control</span><span·class="p"·data-group-id=" | 1761 | <code·class="inline">search/3</code>,·for·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Control</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">eldap</span><span·class="p">:</span><span·class="nf">paged_result_control</span><span·class="p"·data-group-id="3732377657-1">(</span><span·class="mi">50</span><span·class="p"·data-group-id="3732377657-1">)</span><span·class="p">,</span><span·class="w"> |
| 1762 | </span><span·class="p"·data-group-id=" | 1762 | </span><span·class="p"·data-group-id="3732377657-2">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">SearchResults</span><span·class="p"·data-group-id="3732377657-2">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span[·...·truncated·by·diffoscope;·len:·727,·SHA:·05a2d370b3b22c82f18f0d15998336c8421c0666b6795f62af24c49fa8678d7d·...·]-3">)</span><span·class="p">,</span></code></pre> |
| 1763 | ··</section> | 1763 | ··</section> |
| 1764 | </section> | 1764 | </section> |
| 1765 | <section·class="detail"·id="paged_result_control/2"> | 1765 | <section·class="detail"·id="paged_result_control/2"> |
| 1766 | ··<div·class="detail-header"> | 1766 | ··<div·class="detail-header"> |
| 1767 | ····<a·href="#paged_result_control/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 1767 | ····<a·href="#paged_result_control/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 1768 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 1768 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 1789, 20 lines modified | Offset 1789, 20 lines modified | ||
| 1789 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·paged_result_control(PageSize,·Cookie)·->·{control,·ControlOID,·true,·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:binary/0">binary</a>()} | 1789 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·paged_result_control(PageSize,·Cookie)·->·{control,·ControlOID,·true,·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:binary/0">binary</a>()} |
| 1790 | ······························when·PageSize·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:integer/0">integer</a>(),·Cookie·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:string/0">string</a>(),·ControlOID·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:string/0">string</a>().</pre> | 1790 | ······························when·PageSize·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:integer/0">integer</a>(),·Cookie·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:string/0">string</a>(),·ControlOID·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:string/0">string</a>().</pre> |
| 1791 | ······</div> | 1791 | ······</div> |
| 1792 | <p>Paged·results·is·an·extension·to·the·LDAP·protocol·specified·by·RFC2696</p><p>This·function·creates·a·control·with·the·specified·page·size·and·cookie·for·use | 1792 | <p>Paged·results·is·an·extension·to·the·LDAP·protocol·specified·by·RFC2696</p><p>This·function·creates·a·control·with·the·specified·page·size·and·cookie·for·use |
| 1793 | in·<code·class="inline">search/3</code>·to·retrieve·the·next·results·page.</p><p>For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">PageSize</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">50</span><span·class="p">,</span><span·class="w"> | 1793 | in·<code·class="inline">search/3</code>·to·retrieve·the·next·results·page.</p><p>For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">PageSize</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">50</span><span·class="p">,</span><span·class="w"> |
| 1794 | </span><span·class="n">Control1</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">eldap</span><span·class="p">:</span><span·class="nf">paged_result_control</span><span·class="p"·data-group-id=" | 1794 | </span><span·class="n">Control1</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">eldap</span><span·class="p">:</span><span·class="nf">paged_result_control</span><span·class="p"·data-group-id="8736258498-1">(</span><span·class="n">PageSize</span><span·class="p"·data-group-id="8736258498-1">)</span><span·class="p">,</span><span·class="w"> |
| 1795 | </span><span·class="p"·data-group-id=" | 1795 | </span><span·class="p"·data-group-id="8736258498-2">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">SearchResults1</span><span·class="p"·data-group-id="8736258498-2">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</spa[·...·truncated·by·diffoscope;·len:·729,·SHA:·5f6dbb3427a237f28ae4c2f5b572077b80fa9eaed165629374e6f59e7375df79·...·]-3">)</span><span·class="p">,</span><span·class="w"> |
| 1796 | </span><span·class="c1">%%·retrieve·the·returned·cookie·from·the·search·results</span><span·class="w"> | 1796 | </span><span·class="c1">%%·retrieve·the·returned·cookie·from·the·search·results</span><span·class="w"> |
| 1797 | </span><span·class="p"·data-group-id=" | 1797 | </span><span·class="p"·data-group-id="8736258498-7">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Cookie1</span><span·class="p"·data-group-id="8736258498-7">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span[·...·truncated·by·diffoscope;·len:·222,·SHA:·7747df084d012d5ee9d068b0ab47c67cbbd8f068fa767e2b9a09cdb36e7aa8ec·...·]-8">)</span><span·class="p">,</span><span·class="w"> |
| 1798 | </span><span·class="n">Control2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">eldap</span><span·class="p">:</span><span·class="nf">paged_result_control</span><span·class="p"·data-group-id=" | 1798 | </span><span·class="n">Control2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">eldap</span><span·class="p">:</span><span·class="nf">paged_result_control</span><span·class="p"·data-group-id="8736258498-9">(</span><span·class="n">PageSize</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Cookie1</span><span·class="p"·data-group-id="8736258498-9">)</span><span·class="p">,</span><span·class="w"> |
| 1799 | </span><span·class="p"·data-group-id=" | 1799 | </span><span·class="p"·data-group-id="8736258498-10">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">SearchResults2</span><span·class="p"·data-group-id="8736258498-10">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</s[·...·truncated·by·diffoscope;·len:·790,·SHA:·fa70ffeab9e6e8618608e9475a7c08c94d1f8b499fa2efc2ab22a90654117f4b·...·]-11">)</span><span·class="p">,</span><span·class="w"> |
| 1800 | </span><span·class="c1">%%·etc</span></code></pre> | 1800 | </span><span·class="c1">%%·etc</span></code></pre> |
| 1801 | ··</section> | 1801 | ··</section> |
| 1802 | </section> | 1802 | </section> |
| 1803 | <section·class="detail"·id="paged_result_cookie/1"> | 1803 | <section·class="detail"·id="paged_result_cookie/1"> |
| 1804 | ··<div·class="detail-header"> | 1804 | ··<div·class="detail-header"> |
| 1805 | ····<a·href="#paged_result_cookie/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 1805 | ····<a·href="#paged_result_cookie/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| Offset 1908, 16 lines modified | Offset 1908, 16 lines modified | ||
| 1908 | ····················Refs·::·{referral,·<a·href="#t:referrals/0">referrals</a>()}, | 1908 | ····················Refs·::·{referral,·<a·href="#t:referrals/0">referrals</a>()}, |
| 1909 | ····················Reason·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>().</pre> | 1909 | ····················Reason·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>().</pre> |
| 1910 | ······</div> | 1910 | ······</div> |
| 1911 | <p>Search·the·directory·with·the·supplied·the·SearchOptions.</p><p>The·base·and·filter | 1911 | <p>Search·the·directory·with·the·supplied·the·SearchOptions.</p><p>The·base·and·filter |
| 1912 | options·must·be·supplied.·Default·values:·scope·is·<a·href="#wholeSubtree/0"><code·class="inline">wholeSubtree/0</code></a>,·deref·is | 1912 | options·must·be·supplied.·Default·values:·scope·is·<a·href="#wholeSubtree/0"><code·class="inline">wholeSubtree/0</code></a>,·deref·is |
| 1913 | <a·href="#derefAlways/0"><code·class="inline">derefAlways/0</code></a>,·types_only·is·<code·class="inline">false</code>·and·timeout·is·<code·class="inline">0</code>·(meaning·infinity).</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">··</span><span·class="n">Filter</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">eldap</span><span·class="p">:</span><span·class="nf">substrings</span><span·class="p"·data-group-id=" | 1913 | <a·href="#derefAlways/0"><code·class="inline">derefAlways/0</code></a>,·types_only·is·<code·class="inline">false</code>·and·timeout·is·<code·class="inline">0</code>·(meaning·infinity).</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">··</span><span·class="n">Filter</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">eldap</span><span·class="p">:</span><span·class="nf">substrings</span><span·class="p"·data-group-id="9009155997-1">(</span><span·class="s">"cn"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9009155997-2">[</span><span·class="p"·data-group-id="9009155997-3">{</span><span·class="ss">any</span><span·class="p">[·...·truncated·by·diffoscope;·len:·191,·SHA:·95f772548eacb73a1d9b47267b5b4f2d4d04bc9556f0551a040ea9c0aba352f7·...·]-1">)</span><span·class="p">,</span><span·class="w"> |
| 1914 | ··</span><span·class="nf">search</span><span·class="p"·data-group-id=" | 1914 | ··</span><span·class="nf">search</span><span·class="p"·data-group-id="9009155997-4">(</span><span·class="n">Handle</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9009155997-5">[</span><span·class="p"·data-group-id="9009155997-6">{</span><span·class="ss">base</span><span·class="p">,</span[·...·truncated·by·diffoscope;·len:·865,·SHA:·af14b7213e78abad2e9c1f292ba5072c4bda8ebfdda09de1651ec0e9d584fa60·...·]-4">)</span><span·class="p">,</span></code></pre><p>The·<code·class="inline">timeout</code>·option·in·the·<code·class="inline">SearchOptions</code>·is·for·the·ldap·server,·while·the |
| 1915 | timeout·in·<a·href="#open/2">eldap:open/2</a>·is·used·for·each·individual·request·in·the | 1915 | timeout·in·<a·href="#open/2">eldap:open/2</a>·is·used·for·each·individual·request·in·the |
| 1916 | search·operation.</p> | 1916 | search·operation.</p> |
| 1917 | ··</section> | 1917 | ··</section> |
| 1918 | </section> | 1918 | </section> |
| 1919 | <section·class="detail"·id="simple_bind/3"> | 1919 | <section·class="detail"·id="simple_bind/3"> |
| 1920 | ··<div·class="detail-header"> | 1920 | ··<div·class="detail-header"> |
| Offset 2137, 15 lines modified | Offset 2137, 15 lines modified | ||
| 2137 | ······<p·class="built-using"> | 2137 | ······<p·class="built-using"> |
| 2138 | ········Built·using | 2138 | ········Built·using |
| 2139 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 2139 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 2140 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 2140 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 2141 | ······</p> | 2141 | ······</p> |
| 2142 | <p>Copyright·©·1996-202 | 2142 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 2143 | ····</footer> | 2143 | ····</footer> |
| 2144 | ··</div> | 2144 | ··</div> |
| 2145 | </main> | 2145 | </main> |
| 2146 | </div> | 2146 | </div> |
| 2147 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 2147 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 2148 | ··<script> | 2148 | ··<script> |
| 2149 | ··let·initialized·=·false; | 2149 | ··let·initialized·=·false; |
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| 529 | ······<p·class="built-using"> | 529 | ······<p·class="built-using"> |
| 530 | ········Built·using | 530 | ········Built·using |
| 531 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 531 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 532 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 532 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 533 | ······</p> | 533 | ······</p> |
| 534 | <p>Copyright·©·1996-202 | 534 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 535 | ····</footer> | 535 | ····</footer> |
| 536 | ··</div> | 536 | ··</div> |
| 537 | </main> | 537 | </main> |
| 538 | </div> | 538 | </div> |
| 539 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 539 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 540 | ··<script> | 540 | ··<script> |
| 541 | ··let·initialized·=·false; | 541 | ··let·initialized·=·false; |
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| 141 | ······<p·class="built-using"> | 141 | ······<p·class="built-using"> |
| 142 | ········Built·using | 142 | ········Built·using |
| 143 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 143 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 144 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 144 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 145 | ······</p> | 145 | ······</p> |
| 146 | <p>Copyright·©·1996-202 | 146 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 147 | ····</footer> | 147 | ····</footer> |
| 148 | ··</div> | 148 | ··</div> |
| 149 | </main> | 149 | </main> |
| 150 | </div> | 150 | </div> |
| 151 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 151 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 152 | ··<script> | 152 | ··<script> |
| 153 | ··let·initialized·=·false; | 153 | ··let·initialized·=·false; |
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| 131 | ······<p·class="built-using"> | 131 | ······<p·class="built-using"> |
| 132 | ········Built·using | 132 | ········Built·using |
| 133 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 133 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 134 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 134 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 135 | ······</p> | 135 | ······</p> |
| 136 | <p>Copyright·©·1996-202 | 136 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 137 | ····</footer> | 137 | ····</footer> |
| 138 | ··</div> | 138 | ··</div> |
| 139 | </main> | 139 | </main> |
| 140 | </div> | 140 | </div> |
| 141 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 141 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 142 | ··<script> | 142 | ··<script> |
| 143 | ··let·initialized·=·false; | 143 | ··let·initialized·=·false; |
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| 1023 | ······<p·class="built-using"> | 1023 | ······<p·class="built-using"> |
| 1024 | ········Built·using | 1024 | ········Built·using |
| 1025 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1025 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1026 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1026 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1027 | ······</p> | 1027 | ······</p> |
| 1028 | <p>Copyright·©·1996-202 | 1028 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1029 | ····</footer> | 1029 | ····</footer> |
| 1030 | ··</div> | 1030 | ··</div> |
| 1031 | </main> | 1031 | </main> |
| 1032 | </div> | 1032 | </div> |
| 1033 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1033 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1034 | ··<script> | 1034 | ··<script> |
| 1035 | ··let·initialized·=·false; | 1035 | ··let·initialized·=·false; |
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| 871 | ······<p·class="built-using"> | 871 | ······<p·class="built-using"> |
| 872 | ········Built·using | 872 | ········Built·using |
| 873 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 873 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 874 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 874 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 875 | ······</p> | 875 | ······</p> |
| 876 | <p>Copyright·©·1996-202 | 876 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 877 | ····</footer> | 877 | ····</footer> |
| 878 | ··</div> | 878 | ··</div> |
| 879 | </main> | 879 | </main> |
| 880 | </div> | 880 | </div> |
| 881 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 881 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 882 | ··<script> | 882 | ··<script> |
| 883 | ··let·initialized·=·false; | 883 | ··let·initialized·=·false; |
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| 200 | ······<p·class="built-using"> | 200 | ······<p·class="built-using"> |
| 201 | ········Built·using | 201 | ········Built·using |
| 202 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 202 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 203 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 203 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 204 | ······</p> | 204 | ······</p> |
| 205 | <p>Copyright·©·1996-202 | 205 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 206 | ····</footer> | 206 | ····</footer> |
| 207 | ··</div> | 207 | ··</div> |
| 208 | </main> | 208 | </main> |
| 209 | </div> | 209 | </div> |
| 210 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 210 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 211 | ··<script> | 211 | ··<script> |
| 212 | ··let·initialized·=·false; | 212 | ··let·initialized·=·false; |
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| 425 | ······<p·class="built-using"> | 425 | ······<p·class="built-using"> |
| 426 | ········Built·using | 426 | ········Built·using |
| 427 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 427 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 428 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 428 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 429 | ······</p> | 429 | ······</p> |
| 430 | <p>Copyright·©·1996-202 | 430 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 431 | ····</footer> | 431 | ····</footer> |
| 432 | ··</div> | 432 | ··</div> |
| 433 | </main> | 433 | </main> |
| 434 | </div> | 434 | </div> |
| 435 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 435 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 436 | ··<script> | 436 | ··<script> |
| 437 | ··let·initialized·=·false; | 437 | ··let·initialized·=·false; |
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| 247 | ·{<madonna@chivas.du.etx.ericsson.se,17,0>, | 247 | ·{<madonna@chivas.du.etx.ericsson.se,17,0>, |
| 248 | ··················{registered_name,code_server}}, | 248 | ··················{registered_name,code_server}}, |
| 249 | ·{<madonna@chivas.du.etx.ericsson.se,20,0>, | 249 | ·{<madonna@chivas.du.etx.ericsson.se,20,0>, |
| 250 | ··················{registered_name,user}}, | 250 | ··················{registered_name,user}}, |
| 251 | ·{<madonna@chivas.du.etx.ericsson.se,38,0>, | 251 | ·{<madonna@chivas.du.etx.ericsson.se,38,0>, |
| 252 | ··················[]}]</code></pre><p>To·forward·standard·output·without·printing·the·result·term·(<em>again,·the·input | 252 | ··················[]}]</code></pre><p>To·forward·standard·output·without·printing·the·result·term·(<em>again,·the·input |
| 253 | ends·with·EOF·(Control-D)</em>):</p><pre><code·class="makeup·erlang"·translate="no"><span·class="ss">erl_call</span><span·class="w">·</span><span·class="o">-</span><span·class="ss">s</span><span·class="w">·</span><span·class="o">-</span><span·class="ss">e</span><span·class="w">·</span><span·class="o">-</span><span·class="ss">sname</span><span·class="w">·</span><span·class="ss">madonna</span><span·class="w">·</span><span·class="o">-</span><span·class="ss">fetch_stdout</span><span·class="w">·</span><span·class="o">-</span><span·class="ss">no_result_term</span><span·class="w"> | 253 | ends·with·EOF·(Control-D)</em>):</p><pre><code·class="makeup·erlang"·translate="no"><span·class="ss">erl_call</span><span·class="w">·</span><span·class="o">-</span><span·class="ss">s</span><span·class="w">·</span><span·class="o">-</span><span·class="ss">e</span><span·class="w">·</span><span·class="o">-</span><span·class="ss">sname</span><span·class="w">·</span><span·class="ss">madonna</span><span·class="w">·</span><span·class="o">-</span><span·class="ss">fetch_stdout</span><span·class="w">·</span><span·class="o">-</span><span·class="ss">no_result_term</span><span·class="w"> |
| 254 | </span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 254 | </span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="3915452289-1">(</span><span·class="s">"Number·of·schedulers:·</span><span·class="si">~p</span><span·class="si">~n</span><span·class="s">"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3915452289-2">[</span><[·...·truncated·by·diffoscope;·len:·322,·SHA:·1ef4cf83b4adbd4dc6a73959c27082bb68c24ef73f323cf5859ad530fa9b3ce7·...·]-1">)</span><span·class="p">,</span><span·class="w"> |
| 255 | </span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 255 | </span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="3915452289-4">(</span><span·class="s">"Number·of·logical·cores:·</span><span·class="si">~p</span><span·class="si">~n</span><span·class="s">"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3915452289-5">[</spa[·...·truncated·by·diffoscope;·len:·343,·SHA:·5a26b5b2a1c9f4a94dde5a025926a610d893d5e058f78d1e164a5325823a5019·...·]-4">)</span><span·class="p">.</span><span·class="w"> |
| 256 | </span><span·class="err">^</span><span·class="n">D</span><span·class="w"> | 256 | </span><span·class="err">^</span><span·class="n">D</span><span·class="w"> |
| 257 | </span><span·class="n">Number</span><span·class="w">·</span><span·class="k">of</span><span·class="w">·</span><span·class="nc">schedulers</span><span·class="p">:</span><span·class="w">·</span><span·class="mi">8</span><span·class="w"> | 257 | </span><span·class="n">Number</span><span·class="w">·</span><span·class="k">of</span><span·class="w">·</span><span·class="nc">schedulers</span><span·class="p">:</span><span·class="w">·</span><span·class="mi">8</span><span·class="w"> |
| 258 | </span><span·class="n">Number</span><span·class="w">·</span><span·class="k">of</span><span·class="w">·</span><span·class="ss">logical</span><span·class="w">·</span><span·class="nc">cores</span><span·class="p">:</span><span·class="w">·</span><span·class="mi">8</span></code></pre> | 258 | </span><span·class="n">Number</span><span·class="w">·</span><span·class="k">of</span><span·class="w">·</span><span·class="ss">logical</span><span·class="w">·</span><span·class="nc">cores</span><span·class="p">:</span><span·class="w">·</span><span·class="mi">8</span></code></pre> |
| 259 | </div> | 259 | </div> |
| 260 | <div·class="bottom-actions"·id="bottom-actions"> | 260 | <div·class="bottom-actions"·id="bottom-actions"> |
| 261 | ··<div·class="bottom-actions-item"> | 261 | ··<div·class="bottom-actions-item"> |
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| 302 | ······<p·class="built-using"> | 302 | ······<p·class="built-using"> |
| 303 | ········Built·using | 303 | ········Built·using |
| 304 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 304 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 305 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 305 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 306 | ······</p> | 306 | ······</p> |
| 307 | <p>Copyright·©·1996-202 | 307 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 308 | ····</footer> | 308 | ····</footer> |
| 309 | ··</div> | 309 | ··</div> |
| 310 | </main> | 310 | </main> |
| 311 | </div> | 311 | </div> |
| 312 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 312 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 313 | ··<script> | 313 | ··<script> |
| 314 | ··let·initialized·=·false; | 314 | ··let·initialized·=·false; |
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| 1821 | ······<p·class="built-using"> | 1821 | ······<p·class="built-using"> |
| 1822 | ········Built·using | 1822 | ········Built·using |
| 1823 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1823 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1824 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1824 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1825 | ······</p> | 1825 | ······</p> |
| 1826 | <p>Copyright·©·1996-202 | 1826 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1827 | ····</footer> | 1827 | ····</footer> |
| 1828 | ··</div> | 1828 | ··</div> |
| 1829 | </main> | 1829 | </main> |
| 1830 | </div> | 1830 | </div> |
| 1831 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1831 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1832 | ··<script> | 1832 | ··<script> |
| 1833 | ··let·initialized·=·false; | 1833 | ··let·initialized·=·false; |
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| 131 | ······<p·class="built-using"> | 131 | ······<p·class="built-using"> |
| 132 | ········Built·using | 132 | ········Built·using |
| 133 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 133 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 134 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 134 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 135 | ······</p> | 135 | ······</p> |
| 136 | <p>Copyright·©·1996-202 | 136 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 137 | ····</footer> | 137 | ····</footer> |
| 138 | ··</div> | 138 | ··</div> |
| 139 | </main> | 139 | </main> |
| 140 | </div> | 140 | </div> |
| 141 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 141 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 142 | ··<script> | 142 | ··<script> |
| 143 | ··let·initialized·=·false; | 143 | ··let·initialized·=·false; |
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| 143 | ······<p·class="built-using"> | 143 | ······<p·class="built-using"> |
| 144 | ········Built·using | 144 | ········Built·using |
| 145 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 145 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 146 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 146 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 147 | ······</p> | 147 | ······</p> |
| 148 | <p>Copyright·©·1996-202 | 148 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 149 | ····</footer> | 149 | ····</footer> |
| 150 | ··</div> | 150 | ··</div> |
| 151 | </main> | 151 | </main> |
| 152 | </div> | 152 | </div> |
| 153 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 153 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 154 | ··<script> | 154 | ··<script> |
| 155 | ··let·initialized·=·false; | 155 | ··let·initialized·=·false; |
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| 208 | ······<p·class="built-using"> | 208 | ······<p·class="built-using"> |
| 209 | ········Built·using | 209 | ········Built·using |
| 210 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 210 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 211 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 211 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 212 | ······</p> | 212 | ······</p> |
| 213 | <p>Copyright·©·1996-202 | 213 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 214 | ····</footer> | 214 | ····</footer> |
| 215 | ··</div> | 215 | ··</div> |
| 216 | </main> | 216 | </main> |
| 217 | </div> | 217 | </div> |
| 218 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 218 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 219 | ··<script> | 219 | ··<script> |
| 220 | ··let·initialized·=·false; | 220 | ··let·initialized·=·false; |
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| 1 | Zip·archive·data,·made·by·v6.1·UNIX,·extract·using·at·least·v1.0,·last·modified·Ju | 1 | Zip·archive·data,·made·by·v6.1·UNIX,·extract·using·at·least·v1.0,·last·modified·Jul·05·2026·23:54:18,·uncompressed·size·20,·method=store |
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| 536 | ······<p·class="built-using"> | 536 | ······<p·class="built-using"> |
| 537 | ········Built·using | 537 | ········Built·using |
| 538 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 538 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 539 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 539 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 540 | ······</p> | 540 | ······</p> |
| 541 | <p>Copyright·©·1996-202 | 541 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 542 | ····</footer> | 542 | ····</footer> |
| 543 | ··</div> | 543 | ··</div> |
| 544 | </main> | 544 | </main> |
| 545 | </div> | 545 | </div> |
| 546 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 546 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 547 | ··<script> | 547 | ··<script> |
| 548 | ··let·initialized·=·false; | 548 | ··let·initialized·=·false; |
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| 1473 | ······<p·class="built-using"> | 1473 | ······<p·class="built-using"> |
| 1474 | ········Built·using | 1474 | ········Built·using |
| 1475 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1475 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1476 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1476 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1477 | ······</p> | 1477 | ······</p> |
| 1478 | <p>Copyright·©·1996-202 | 1478 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1479 | ····</footer> | 1479 | ····</footer> |
| 1480 | ··</div> | 1480 | ··</div> |
| 1481 | </main> | 1481 | </main> |
| 1482 | </div> | 1482 | </div> |
| 1483 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1483 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1484 | ··<script> | 1484 | ··<script> |
| 1485 | ··let·initialized·=·false; | 1485 | ··let·initialized·=·false; |
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| 134 | <p>The·two·major·components·of·the·<code·class="inline">Event·Tracer·(ET)</code>·tool·is·a·graphical·sequence | 134 | <p>The·two·major·components·of·the·<code·class="inline">Event·Tracer·(ET)</code>·tool·is·a·graphical·sequence |
| 135 | chart·viewer·(<code·class="inline">et_viewer</code>)·and·its·backing·storage·(<code·class="inline">et_collector</code>).·One | 135 | chart·viewer·(<code·class="inline">et_viewer</code>)·and·its·backing·storage·(<code·class="inline">et_collector</code>).·One |
| 136 | <code·class="inline">Collector</code>·may·be·used·as·backing·storage·for·several·simultaneous·<code·class="inline">Viewers</code> | 136 | <code·class="inline">Collector</code>·may·be·used·as·backing·storage·for·several·simultaneous·<code·class="inline">Viewers</code> |
| 137 | where·each·one·may·display·a·different·view·of·the·same·trace·data.</p><p>The·interface·between·the·<code·class="inline">Collector</code>·and·its·<code·class="inline">Viewers</code>·is·public·in·order·to | 137 | where·each·one·may·display·a·different·view·of·the·same·trace·data.</p><p>The·interface·between·the·<code·class="inline">Collector</code>·and·its·<code·class="inline">Viewers</code>·is·public·in·order·to |
| 138 | enable·other·types·of·<code·class="inline">Viewers</code>.·However·in·the·following·text·we·will·focus·on | 138 | enable·other·types·of·<code·class="inline">Viewers</code>.·However·in·the·following·text·we·will·focus·on |
| 139 | usage·of·the·<code·class="inline">et_viewer</code>.</p><p>The·main·start·function·is·<a·href="et_viewer.html#start/1"><code·class="inline">et_viewer:start/1</code></a>.·By·default·it·will·start·both·an | 139 | usage·of·the·<code·class="inline">et_viewer</code>.</p><p>The·main·start·function·is·<a·href="et_viewer.html#start/1"><code·class="inline">et_viewer:start/1</code></a>.·By·default·it·will·start·both·an |
| 140 | <code·class="inline">et_collector</code>·and·an·<code·class="inline">et_viewer</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%·erl·-pa·et/examples</span><span·class="w"> | 140 | <code·class="inline">et_collector</code>·and·an·<code·class="inline">et_viewer</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%·erl·-pa·et/examples</span><span·class="w"> |
| 141 | </span><span·class="n">Erlang</span><span·class="w">·</span><span·class="n">R13B03</span><span·class="w">·</span><span·class="p"·data-group-id="3 | 141 | </span><span·class="n">Erlang</span><span·class="w">·</span><span·class="n">R13B03</span><span·class="w">·</span><span·class="p"·data-group-id="3715140843-1">(</span><span·class="ss">erts</span><span·class="o">-</span><span·class="mf">5.7</span><span·class="p">.</span><span·class="mi">4</span><span·class="p"·data-group-id="3715140843-1">)</span><span·class="w">·</span><span·class="p"·data-group-id=[·...·truncated·by·diffoscope;·len:·1129,·SHA:·6a52486d7d3e81e83ca7848191de17db1addf66aa34bea9d9bc327b387a70ec1·...·]-6">]</span><span·class="w"> |
| 142 | </span><span·class="n">Eshell</span><span·class="w">·</span><span·class="n">V5</span><span·class="p">.</span><span·class="mf">7.4</span><span·class="w">··</span><span·class="p"·data-group-id="3 | 142 | </span><span·class="n">Eshell</span><span·class="w">·</span><span·class="n">V5</span><span·class="p">.</span><span·class="mf">7.4</span><span·class="w">··</span><span·class="p"·data-group-id="3715140843-7">(</span><span·class="ss">abort</span><span·class="w">·</span><span·class="ss">with</span><span·class="w">·</span><span·class="err">^</span><span·class="n">G</span><span·class="p"·data-group-id="3715140843-7">)</span><span·class="gp·unselectable"> |
| 143 | 1>·</span><span·class="p"·data-group-id="3 | 143 | 1>·</span><span·class="p"·data-group-id="3715140843-8">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Viewer</span><span·class="p"·data-group-id="3715140843-8">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·c[·...·truncated·by·diffoscope;·len:·281,·SHA:·c6a4e122de067c91ed2f2674c438e08d268e68157fdd7ee6aedeb3cb1589d65f·...·]-9">)</span><span·class="p">.</span><span·class="w"> |
| 144 | </span><span·class="p"·data-group-id="3 | 144 | </span><span·class="p"·data-group-id="3715140843-11">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="o"><</span><span·class="mf">0.40</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="p"·data-group-id="3715140843-11">}</span></code></pre><p>A·<code·class="inline">Viewer</code>·gets·trace·<code·class="inline">Events</code>·from·its·<code·class="inline">Collector</code>·by·polling·it·regularly·for |
| 145 | more·<code·class="inline">Events</code>·to·display.·<code·class="inline">Events</code>·are·for·example·reported·to·the·<code·class="inline">Collector</code> | 145 | more·<code·class="inline">Events</code>·to·display.·<code·class="inline">Events</code>·are·for·example·reported·to·the·<code·class="inline">Collector</code> |
| 146 | with·<a·href="et_collector.html#report_event/6"><code·class="inline">et_collector:report_event/6</code></a>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">2>·</span><span·class="n">Collector</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">et_viewer</span><span·class="p">:</span><span·class="nf">get_collector_pid</span><span·class="p"·data-group-id=" | 146 | with·<a·href="et_collector.html#report_event/6"><code·class="inline">et_collector:report_event/6</code></a>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">2>·</span><span·class="n">Collector</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">et_viewer</span><span·class="p">:</span><span·class="nf">get_collector_pid</span><span·class="p"·data-group-id="2353353194-1">(</span><span·class="n">Viewer</span><span·class="p"·data-group-id="2353353194-1">)</span><span·class="p">.</span><span·class="w"> |
| 147 | </span><span·class="o"><</span><span·class="mf">0.39</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="gp·unselectable"> | 147 | </span><span·class="o"><</span><span·class="mf">0.39</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="gp·unselectable"> |
| 148 | 3>·</span><span·class="nc">et_collector</span><span·class="p">:</span><span·class="nf">report_event</span><span·class="p"·data-group-id=" | 148 | 3>·</span><span·class="nc">et_collector</span><span·class="p">:</span><span·class="nf">report_event</span><span·class="p"·data-group-id="2353353194-2">(</span><span·class="n">Collector</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">60</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">my_shell</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">mnesia_tm</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">start_outer</span><span·class="p">,</span><span·class="gp·unselectable"> |
| 149 | 3>·</span><span·class="w">··························</span><span·class="s">"Start·outer·transaction"</span><span·class="p"·data-group-id=" | 149 | 3>·</span><span·class="w">··························</span><span·class="s">"Start·outer·transaction"</span><span·class="p"·data-group-id="2353353194-2">)</span><span·class="p">,</span><span·class="gp·unselectable"> |
| 150 | 3>·</span><span·class="nc">et_collector</span><span·class="p">:</span><span·class="nf">report_event</span><span·class="p"·data-group-id=" | 150 | 3>·</span><span·class="nc">et_collector</span><span·class="p">:</span><span·class="nf">report_event</span><span·class="p"·data-group-id="2353353194-3">(</span><span·class="n">Collector</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">40</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">mnesia_tm</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">my_shell</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">new_tid</span><span·class="p">,</span><span·class="gp·unselectable"> |
| 151 | 3>·</span><span·class="w">··························</span><span·class="s">"New·transaction·id·is·4711"</span><span·class="p"·data-group-id=" | 151 | 3>·</span><span·class="w">··························</span><span·class="s">"New·transaction·id·is·4711"</span><span·class="p"·data-group-id="2353353194-3">)</span><span·class="p">,</span><span·class="gp·unselectable"> |
| 152 | 3>·</span><span·class="nc">et_collector</span><span·class="p">:</span><span·class="nf">report_event</span><span·class="p"·data-group-id=" | 152 | 3>·</span><span·class="nc">et_collector</span><span·class="p">:</span><span·class="nf">report_event</span><span·class="p"·data-group-id="2353353194-4">(</span><span·class="n">Collector</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">20</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">my_shell</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">mnesia_locker</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">try_write_lock</span><span·class="p">,</span><span·class="gp·unselectable"> |
| 153 | 3>·</span><span·class="w">··························</span><span·class="s">"Acquire·write·lock·for·{my_tab,·key}"</span><span·class="p"·data-group-id=" | 153 | 3>·</span><span·class="w">··························</span><span·class="s">"Acquire·write·lock·for·{my_tab,·key}"</span><span·class="p"·data-group-id="2353353194-4">)</span><span·class="p">,</span><span·class="gp·unselectable"> |
| 154 | 3>·</span><span·class="nc">et_collector</span><span·class="p">:</span><span·class="nf">report_event</span><span·class="p"·data-group-id=" | 154 | 3>·</span><span·class="nc">et_collector</span><span·class="p">:</span><span·class="nf">report_event</span><span·class="p"·data-group-id="2353353194-5">(</span><span·class="n">Collector</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">10</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">mnesia_locker</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">my_shell</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">granted</span><span·class="p">,</span><span·class="gp·unselectable"> |
| 155 | 3>·</span><span·class="w">··························</span><span·class="s">"You·got·the·write·lock·for·{my_tab,·key}"</span><span·class="p"·data-group-id=" | 155 | 3>·</span><span·class="w">··························</span><span·class="s">"You·got·the·write·lock·for·{my_tab,·key}"</span><span·class="p"·data-group-id="2353353194-5">)</span><span·class="p">,</span><span·class="gp·unselectable"> |
| 156 | 3>·</span><span·class="nc">et_collector</span><span·class="p">:</span><span·class="nf">report_event</span><span·class="p"·data-group-id=" | 156 | 3>·</span><span·class="nc">et_collector</span><span·class="p">:</span><span·class="nf">report_event</span><span·class="p"·data-group-id="2353353194-6">(</span><span·class="n">Collector</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">60</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">my_shell</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">do_commit</span><span·class="p">,</span><span·class="gp·unselectable"> |
| 157 | 3>·</span><span·class="w">··························</span><span·class="s">"Perform··transaction·commit"</span><span·class="p"·data-group-id=" | 157 | 3>·</span><span·class="w">··························</span><span·class="s">"Perform··transaction·commit"</span><span·class="p"·data-group-id="2353353194-6">)</span><span·class="p">,</span><span·class="gp·unselectable"> |
| 158 | 3>·</span><span·class="nc">et_collector</span><span·class="p">:</span><span·class="nf">report_event</span><span·class="p"·data-group-id=" | 158 | 3>·</span><span·class="nc">et_collector</span><span·class="p">:</span><span·class="nf">report_event</span><span·class="p"·data-group-id="2353353194-7">(</span><span·class="n">Collector</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">40</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">my_shell</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">mnesia_locker</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">release_tid</span><span·class="p">,</span><span·class="gp·unselectable"> |
| 159 | 3>·</span><span·class="w">··························</span><span·class="s">"Release·all·locks·for·transaction·4711"</span><span·class="p"·data-group-id=" | 159 | 3>·</span><span·class="w">··························</span><span·class="s">"Release·all·locks·for·transaction·4711"</span><span·class="p"·data-group-id="2353353194-7">)</span><span·class="p">,</span><span·class="gp·unselectable"> |
| 160 | 3>·</span><span·class="nc">et_collector</span><span·class="p">:</span><span·class="nf">report_event</span><span·class="p"·data-group-id=" | 160 | 3>·</span><span·class="nc">et_collector</span><span·class="p">:</span><span·class="nf">report_event</span><span·class="p"·data-group-id="2353353194-8">(</span><span·class="n">Collector</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">60</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">my_shell</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">mnesia_tm</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">delete_transaction</span><span·class="p">,</span><span·class="gp·unselectable"> |
| 161 | 3>·</span><span·class="w">··························</span><span·class="s">"End·of·outer·transaction"</span><span·class="p"·data-group-id=" | 161 | 3>·</span><span·class="w">··························</span><span·class="s">"End·of·outer·transaction"</span><span·class="p"·data-group-id="2353353194-8">)</span><span·class="p">,</span><span·class="gp·unselectable"> |
| 162 | 3>·</span><span·class="nc">et_collector</span><span·class="p">:</span><span·class="nf">report_event</span><span·class="p"·data-group-id=" | 162 | 3>·</span><span·class="nc">et_collector</span><span·class="p">:</span><span·class="nf">report_event</span><span·class="p"·data-group-id="2353353194-9">(</span><span·class="n">Collector</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">20</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">my_shell</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">end_outer</span><span·class="p">,</span><span·class="gp·unselectable"> |
| 163 | 3>·</span><span·class="w">··························</span><span·class="s">"Transaction·returned·{atomic,·ok}"</span><span·class="p"·data-group-id=" | 163 | 3>·</span><span·class="w">··························</span><span·class="s">"Transaction·returned·{atomic,·ok}"</span><span·class="p"·data-group-id="2353353194-9">)</span><span·class="p">.</span><span·class="w"> |
| 164 | </span><span·class="p"·data-group-id=" | 164 | </span><span·class="p"·data-group-id="2353353194-10">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="p"·data-group-id="2353353194-11">{</span><span·class="ss">table_handle</span><span·class="p">,</span><span·class="o"><</span><span·class="mf">0.39</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="p">,</span><span·class="mi">16402</span><span·class="p">,</span><span·class="ss">trace_ts</span><span·class="p">,</span><span·class="w"> |
| 165 | ·····</span><span·class="p">#</span><span·class="n">Fun</span><span·class="o"><</span><span·class="ss">et_collector</span><span·class="p">.</span><span·class="mf">0.62831470</span><span·class="o">></span><span·class="p"·data-group-id=" | 165 | ·····</span><span·class="p">#</span><span·class="n">Fun</span><span·class="o"><</span><span·class="ss">et_collector</span><span·class="p">.</span><span·class="mf">0.62831470</span><span·class="o">></span><span·class="p"·data-group-id="2353353194-11">}</span><span·class="p"·data-group-id="2353353194-10">}</span></code></pre><p>This·actually·is·a·simulation·of·the·process·<code·class="inline">Events</code>·caused·by·a·<code·class="inline">Mnesia</code> |
| 166 | transaction·that·writes·a·record·in·a·local·table:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">transaction</span><span·class="p"·data-group-id="9 | 166 | transaction·that·writes·a·record·in·a·local·table:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">transaction</span><span·class="p"·data-group-id="9028305014-1">(</span><span·class="nf">fun</span><span·class="p"·data-group-id="9028305014-2">(</span><span·class="p"·data-group-id="9028305014-2">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="nc">mnesia</s[·...·truncated·by·diffoscope;·len:·540,·SHA:·13a6d333fdb31247c0ebe65124c36476212f4763d78246d5db856567759723d5·...·]-1">)</span><span·class="p">.</span></code></pre><p>At·this·stage·when·we·have·a·couple·of·<code·class="inline">Events</code>,·it·is·time·to·show·how·it·looks |
| 167 | like·in·the·graphical·interface·of·<code·class="inline">et_viewer</code>:</p><p><img·src="assets/sim_trans.png"·alt="A·simulated·Mnesia·transaction·which·writes·one·record"·title="A·simulated·Mnesia·transaction·which·writes·one·record"/></p><p>In·the·sequence·chart,·the·actors·(which·symbolically·has·performed·the·<code·class="inline">Event</code>) | 167 | like·in·the·graphical·interface·of·<code·class="inline">et_viewer</code>:</p><p><img·src="assets/sim_trans.png"·alt="A·simulated·Mnesia·transaction·which·writes·one·record"·title="A·simulated·Mnesia·transaction·which·writes·one·record"/></p><p>In·the·sequence·chart,·the·actors·(which·symbolically·has·performed·the·<code·class="inline">Event</code>) |
| 168 | are·shown·as·named·vertical·bars.·The·order·of·the·actors·may·be·altered·by | 168 | are·shown·as·named·vertical·bars.·The·order·of·the·actors·may·be·altered·by |
| 169 | dragging·(hold·mouse·button·1·pressed·during·the·operation)·the·name·tag·of·an | 169 | dragging·(hold·mouse·button·1·pressed·during·the·operation)·the·name·tag·of·an |
| 170 | actor·and·drop·it·elsewhere:</p><p><img·src="assets/sim_trans_move_actor.png"·alt="Two·actors·has·switched·places"·title="Two·actors·has·switched·places"/></p><p>An·<code·class="inline">Event</code>·may·be·an·action·performed·by·one·single·actor·(blue·text·label)·or | 170 | actor·and·drop·it·elsewhere:</p><p><img·src="assets/sim_trans_move_actor.png"·alt="Two·actors·has·switched·places"·title="Two·actors·has·switched·places"/></p><p>An·<code·class="inline">Event</code>·may·be·an·action·performed·by·one·single·actor·(blue·text·label)·or |
| 171 | it·may·involve·two·actors·and·is·then·depicted·as·an·arrow·directed·from·one | 171 | it·may·involve·two·actors·and·is·then·depicted·as·an·arrow·directed·from·one |
| 172 | actor·to·another·(red·text·label).·Details·of·an·<code·class="inline">Event</code>·can·be·shown·by | 172 | actor·to·another·(red·text·label).·Details·of·an·<code·class="inline">Event</code>·can·be·shown·by |
| 173 | clicking·(press·and·release·the·mouse·button·1)·on·the·event·label·text·or·on | 173 | clicking·(press·and·release·the·mouse·button·1)·on·the·event·label·text·or·on |
| Offset 177, 19 lines modified | Offset 177, 19 lines modified | ||
| 177 | ··<a·href="#filters-and-dictionary"·class="hover-link"> | 177 | ··<a·href="#filters-and-dictionary"·class="hover-link"> |
| 178 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 178 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 179 | ··</a> | 179 | ··</a> |
| 180 | ··<span·class="text">Filters·and·dictionary</span> | 180 | ··<span·class="text">Filters·and·dictionary</span> |
| 181 | </h2> | 181 | </h2> |
| 182 | <p>The·<code·class="inline">Event·Tracer·(ET)</code>·uses·named·filters·in·various·contexts.·An·Event·Trace | 182 | <p>The·<code·class="inline">Event·Tracer·(ET)</code>·uses·named·filters·in·various·contexts.·An·Event·Trace |
| 183 | filter·is·an·<code·class="inline">Erlang·fun</code>·that·takes·some·trace·data·as·input·and·returns·a | 183 | filter·is·an·<code·class="inline">Erlang·fun</code>·that·takes·some·trace·data·as·input·and·returns·a |
| 184 | possibly·modified·version·of·it:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">filter</span><span·class="p"·data-group-id=" | 184 | possibly·modified·version·of·it:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">filter</span><span·class="p"·data-group-id="2726433247-1">(</span><span·class="n">TraceData</span><span·class="p"·data-group-id="2726433247-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">false</span><span·class="w">·</span><span·class="p">|</s[·...·truncated·by·diffoscope;·len:·329,·SHA:·e732989a9f6f113c4490e008b2886c9d5784b11de20f60436c4ca41eafc5d047·...·]-2">}</span><span·class="w"> |
| 185 | </span><span·class="n">TraceData</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">Event</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="nf">erlang_trace_data</span><span·class="p"·data-group-id=" | 185 | </span><span·class="n">TraceData</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">Event</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="nf">erlang_trace_data</span><span·class="p"·data-group-id="2726433247-3">(</span><span·class="p"·data-group-id="2726433247-3">)</span><span·class="w"> |
| 186 | </span><span·class="n">Event</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">event</span><span·class="p"·data-group-id=" | 186 | </span><span·class="n">Event</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">event</span><span·class="p"·data-group-id="2726433247-4">{</span><span·class="p"·data-group-id="2726433247-4">}</span><span·class="w"> |
| 187 | </span><span·class="n">NewEvent</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">event</span><span·class="p"·data-group-id=" | 187 | </span><span·class="n">NewEvent</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">event</span><span·class="p"·data-group-id="2726433247-5">{</span><span·class="p"·data-group-id="2726433247-5">}</span></code></pre><p>The·interface·of·the·filter·function·is·the·same·as·the·the·filter·functions·for |
| 188 | the·good·old·<a·href="../../../../lib/stdlib-7.0/doc/html/lists.html#filtermap/2"><code·class="inline">lists:filtermap/2</code></a>.·If·the·filter·returns·<code·class="inline">false</code>·it·means·that | 188 | the·good·old·<a·href="../../../../lib/stdlib-7.0/doc/html/lists.html#filtermap/2"><code·class="inline">lists:filtermap/2</code></a>.·If·the·filter·returns·<code·class="inline">false</code>·it·means·that |
| 189 | the·trace·data·should·silently·be·dropped.·<code·class="inline">true</code>·means·that·the·trace·data·data | 189 | the·trace·data·should·silently·be·dropped.·<code·class="inline">true</code>·means·that·the·trace·data·data |
| 190 | already·is·an·<code·class="inline">Event·Record</code>·and·that·it·should·be·kept·as·it·is.·<code·class="inline">true</code>·means | 190 | already·is·an·<code·class="inline">Event·Record</code>·and·that·it·should·be·kept·as·it·is.·<code·class="inline">true</code>·means |
| 191 | that·the·<code·class="inline">TraceData</code>·already·is·an·<code·class="inline">Event·Record</code>·and·that·it·should·be·kept·as | 191 | that·the·<code·class="inline">TraceData</code>·already·is·an·<code·class="inline">Event·Record</code>·and·that·it·should·be·kept·as |
| 192 | it·is.·<code·class="inline">{true,·NewEvent}</code>·means·that·the·original·trace·data·should·be·replaced | 192 | it·is.·<code·class="inline">{true,·NewEvent}</code>·means·that·the·original·trace·data·should·be·replaced |
| 193 | with·<code·class="inline">Event</code>.·This·provides·means·to·get·rid·of·unwanted·<code·class="inline">Events</code>·as·well·as | 193 | with·<code·class="inline">Event</code>.·This·provides·means·to·get·rid·of·unwanted·<code·class="inline">Events</code>·as·well·as |
| 194 | enabling·alternate·views·of·an·<code·class="inline">Event</code>.</p><p>The·first·filter·that·the·trace·data·is·exposed·for·is·the·<code·class="inline">Collector·Filter</code>. | 194 | enabling·alternate·views·of·an·<code·class="inline">Event</code>.</p><p>The·first·filter·that·the·trace·data·is·exposed·for·is·the·<code·class="inline">Collector·Filter</code>. |
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| 208 | When·a·<code·class="inline">Viewer</code>·is·started·it·is·registered·as·a·subscriber·of·dictionary | 208 | When·a·<code·class="inline">Viewer</code>·is·started·it·is·registered·as·a·subscriber·of·dictionary |
| 209 | updates.</p><p>In·each·<code·class="inline">Viewer</code>·there·is·only·one·filter·that·is·active·and·all·trace·<code·class="inline">Events</code> | 209 | updates.</p><p>In·each·<code·class="inline">Viewer</code>·there·is·only·one·filter·that·is·active·and·all·trace·<code·class="inline">Events</code> |
| 210 | that·the·<code·class="inline">Viewer</code>·gets·from·the·<code·class="inline">Collector</code>·will·pass·thru·that·filter.·By | 210 | that·the·<code·class="inline">Viewer</code>·gets·from·the·<code·class="inline">Collector</code>·will·pass·thru·that·filter.·By |
| 211 | writing·clever·filters·it·is·possible·to·customize·how·the·<code·class="inline">Events</code>·looks·like | 211 | writing·clever·filters·it·is·possible·to·customize·how·the·<code·class="inline">Events</code>·looks·like |
| 212 | in·the·viewer.·The·following·filter·in·<code·class="inline">et/examples/et_demo.erl</code>·replaces·the | 212 | in·the·viewer.·The·following·filter·in·<code·class="inline">et/examples/et_demo.erl</code>·replaces·the |
| 213 | actor·names·<code·class="inline">mnesia_tm</code>·and·<code·class="inline">mnesia_locker</code>·and·leaves·everything·else·in·the | 213 | actor·names·<code·class="inline">mnesia_tm</code>·and·<code·class="inline">mnesia_locker</code>·and·leaves·everything·else·in·the |
| 214 | record·as·it·was:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w"> | 214 | record·as·it·was:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w"> |
| 215 | </span><span·class="nf">mgr_actors</span><span·class="p"·data-group-id=" | 215 | </span><span·class="nf">mgr_actors</span><span·class="p"·data-group-id="8923300611-1">(</span><span·class="n">E</span><span·class="p"·data-group-id="8923300611-1">)</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><span·class="nf">is_record</span><span·class="p"·data-group-id="8923300611-2">(</s[·...·truncated·by·diffoscope;·len:·146,·SHA:·dd0edece1d1392cd75b7bf755db11b50b3c7f19dfe1fbc70c278e4fec7b5a800·...·]-2">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 216 | ····</span><span·class="n">Actor</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id=" | 216 | ····</span><span·class="n">Actor</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id="8923300611-3">(</span><span·class="n">A</span><span·class="p"·data-group-id="8923300611-3">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 217 | ···············</span><span·class="k">case</span><span·class="w">·</span><span·class="n">A</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> | 217 | ···············</span><span·class="k">case</span><span·class="w">·</span><span·class="n">A</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 218 | ···················</span><span·class="ss">mnesia_tm</span><span·class="w">·····</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">trans_mgr</span><span·class="p">;</span><span·class="w"> | 218 | ···················</span><span·class="ss">mnesia_tm</span><span·class="w">·····</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">trans_mgr</span><span·class="p">;</span><span·class="w"> |
| 219 | ···················</span><span·class="ss">mnesia_locker</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">lock_mgr</span><span·class="p">;</span><span·class="w"> | 219 | ···················</span><span·class="ss">mnesia_locker</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">lock_mgr</span><span·class="p">;</span><span·class="w"> |
| 220 | ···················</span><span·class="p">_</span><span·class="w">·············</span><span·class="p">-></span><span·class="w">·</span><span·class="n">A</span><span·class="w"> | 220 | ···················</span><span·class="p">_</span><span·class="w">·············</span><span·class="p">-></span><span·class="w">·</span><span·class="n">A</span><span·class="w"> |
| 221 | ···············</span><span·class="k">end</span><span·class="w"> | 221 | ···············</span><span·class="k">end</span><span·class="w"> |
| 222 | ············</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> | 222 | ············</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> |
| 223 | ····</span><span·class="p"·data-group-id=" | 223 | ····</span><span·class="p"·data-group-id="8923300611-4">{</span><span·class="ss">true</span><span·class="p">,</span><span·class="w">·</span><span·class="n">E</span><span·class="o">#</span><span·class="ss">event</span><span·class="p"·data-group-id="8923300611-5">{</span><span·class="ss">from</span>[·...·truncated·by·diffoscope;·len:·323,·SHA:·0d520072763c26709f9880bf6dd7ca41e37bbecde4c565fc319178c7825ba4e5·...·]-6">)</span><span·class="p">,</span><span·class="w"> |
| 224 | ···················</span><span·class="ss">to</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">Actor</span><span·class="p"·data-group-id=" | 224 | ···················</span><span·class="ss">to</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">Actor</span><span·class="p"·data-group-id="8923300611-7">(</span><span·class="n">E</span><span·class="o">#</span><span·class="ss">event</span><span·class="p">.</span><span·class="ss">to</span><span·class="p"·data-group-id="8923300611-7">)</span><span·class="p">,</span><span·class="w"> |
| 225 | ···················</span><span·class="ss">contents</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 225 | ···················</span><span·class="ss">contents</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="8923300611-8">[</span><span·class="p"·data-group-id="8923300611-9">{</span><span·class="ss">orig_from</span><span·class="p">,</span><span·class="w">·</span><span·class="n">E</span><span·class="o">#</span><span·class="ss">event</span><span·class="p">.</span[·...·truncated·by·diffoscope;·len:·70,·SHA:·bb30e8de97fd019c83bf66cf89a905b3b45aa98445abb4e2e52166029072b0af·...·]-9">}</span><span·class="p">,</span><span·class="w"> |
| 226 | ·······························</span><span·class="p"·data-group-id=" | 226 | ·······························</span><span·class="p"·data-group-id="8923300611-10">{</span><span·class="ss">orig_to</span><span·class="p">,</span><span·class="w">···</span><span·class="n">E</span><span·class="o">#</span><span·class="ss">event</span><span·class="p">.</span><span·class="ss">to</span><span·class="p"·data-grou[·...·truncated·by·diffoscope;·len:·16,·SHA:·f3d380b0ddcf7967e841a8898f23e9bb3ade7b9165dc6987bb359d75669e2241·...·]-10">}</span><span·class="p">,</span><span·class="w"> |
| 227 | ·······························</span><span·class="p"·data-group-id=" | 227 | ·······························</span><span·class="p"·data-group-id="8923300611-11">{</span><span·class="ss">orig_contents</span><span·class="p">,</span><span·class="w">·</span><span·class="n">E</span><span·class="o">#</span><span·class="ss">event</span><span·class="p">.</span><span·class="ss">contents</span><span·class="p"[·...·truncated·by·diffoscope;·len:·949,·SHA:·0885ec5cddce94d5e6fdee079c10258cbc10b9858ff2d8b1ccca141a4b85d975·...·]-2">)</span><span·class="w">·</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> |
| 228 | </span><span·class="p">#</span><span·class="n">Fun</span><span·class="o"><</span><span·class="ss">erl_eval</span><span·class="p">.</span><span·class="mf">6.13229925</span><span·class="o">></span><span·class="gp·unselectable"> | 228 | </span><span·class="p">#</span><span·class="n">Fun</span><span·class="o"><</span><span·class="ss">erl_eval</span><span·class="p">.</span><span·class="mf">6.13229925</span><span·class="o">></span><span·class="gp·unselectable"> |
| 229 | 5>·</span><span·class="nc">et_collector</span><span·class="p">:</span><span·class="nf">dict_insert</span><span·class="p"·data-group-id=" | 229 | 5>·</span><span·class="nc">et_collector</span><span·class="p">:</span><span·class="nf">dict_insert</span><span·class="p"·data-group-id="1866820580-3">(</span><span·class="n">Collector</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1866820580-4">{</span><span·class="ss">filter</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">mgr_ac[·...·truncated·by·diffoscope;·len:·179,·SHA:·593f576bc62721c3bf822a0313e439649b2dfe100674d4e7357ebecf4352eefc·...·]-3">)</span><span·class="p">.</span><span·class="w"> |
| 230 | </span><span·class="ss">ok</span></code></pre><p>you·will·see·that·the·<code·class="inline">Filter</code>·menu·in·all·viewers·have·got·a·new·entry·called | 230 | </span><span·class="ss">ok</span></code></pre><p>you·will·see·that·the·<code·class="inline">Filter</code>·menu·in·all·viewers·have·got·a·new·entry·called |
| 231 | <code·class="inline">mgr_actors</code>.·Select·it,·and·a·new·<code·class="inline">Viewer</code>·window·will·pop·up:</p><p><img·src="assets/sim_trans_mgr_actors.png"·alt="The·same·trace·data·in·a·different·view"·title="The·same·trace·data·in·a·different·view"/></p><p>In·order·to·see·the·nitty·gritty·details·of·an·<code·class="inline">Event</code>·you·may·click·on·the | 231 | <code·class="inline">mgr_actors</code>.·Select·it,·and·a·new·<code·class="inline">Viewer</code>·window·will·pop·up:</p><p><img·src="assets/sim_trans_mgr_actors.png"·alt="The·same·trace·data·in·a·different·view"·title="The·same·trace·data·in·a·different·view"/></p><p>In·order·to·see·the·nitty·gritty·details·of·an·<code·class="inline">Event</code>·you·may·click·on·the |
| 232 | <code·class="inline">Event</code>·in·order·to·start·a·<code·class="inline">Contents·Viewer</code>·for·that·<code·class="inline">Event</code>.·In·the | 232 | <code·class="inline">Event</code>·in·order·to·start·a·<code·class="inline">Contents·Viewer</code>·for·that·<code·class="inline">Event</code>.·In·the |
| 233 | <code·class="inline">Contents·Viewer</code>·there·also·is·a·filter·menu·that·enables·inspection·of·the | 233 | <code·class="inline">Contents·Viewer</code>·there·also·is·a·filter·menu·that·enables·inspection·of·the |
| 234 | <code·class="inline">Event</code>·from·other·views·than·the·one·selected·in·the·viewer.·A·click·on·the | 234 | <code·class="inline">Event</code>·from·other·views·than·the·one·selected·in·the·viewer.·A·click·on·the |
| 235 | <code·class="inline">new_tid</code>·<code·class="inline">Event</code>·will·cause·a·<code·class="inline">Contents·Viewer</code>·window·to·pop·up,·showing·the | 235 | <code·class="inline">new_tid</code>·<code·class="inline">Event</code>·will·cause·a·<code·class="inline">Contents·Viewer</code>·window·to·pop·up,·showing·the |
| 236 | <code·class="inline">Event</code>·in·the·<code·class="inline">mgr_actors</code>·view:</p><p><img·src="assets/sim_trans_contents_viewer_mgr_actors.png"·alt="The·trace·Event·in·the·mgr_actors·view"·title="The·trace·Event·in·the·mgr_actors·view"/></p><p>Select·the·<code·class="inline">all</code>·entry·in·the·<code·class="inline">Filters</code>·menu·and·a·new·<code·class="inline">Contents·Viewer·window</code> | 236 | <code·class="inline">Event</code>·in·the·<code·class="inline">mgr_actors</code>·view:</p><p><img·src="assets/sim_trans_contents_viewer_mgr_actors.png"·alt="The·trace·Event·in·the·mgr_actors·view"·title="The·trace·Event·in·the·mgr_actors·view"/></p><p>Select·the·<code·class="inline">all</code>·entry·in·the·<code·class="inline">Filters</code>·menu·and·a·new·<code·class="inline">Contents·Viewer·window</code> |
| Offset 419, 15 lines modified | Offset 419, 15 lines modified | ||
| 419 | ······<p·class="built-using"> | 419 | ······<p·class="built-using"> |
| 420 | ········Built·using | 420 | ········Built·using |
| 421 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 421 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 422 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 422 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 423 | ······</p> | 423 | ······</p> |
| 424 | <p>Copyright·©·1996-202 | 424 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 425 | ····</footer> | 425 | ····</footer> |
| 426 | ··</div> | 426 | ··</div> |
| 427 | </main> | 427 | </main> |
| 428 | </div> | 428 | </div> |
| 429 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 429 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 430 | ··<script> | 430 | ··<script> |
| 431 | ··let·initialized·=·false; | 431 | ··let·initialized·=·false; |
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| 211 | ······<p·class="built-using"> | 211 | ······<p·class="built-using"> |
| 212 | ········Built·using | 212 | ········Built·using |
| 213 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 213 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 214 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 214 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 215 | ······</p> | 215 | ······</p> |
| 216 | <p>Copyright·©·1996-202 | 216 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 217 | ····</footer> | 217 | ····</footer> |
| 218 | ··</div> | 218 | ··</div> |
| 219 | </main> | 219 | </main> |
| 220 | </div> | 220 | </div> |
| 221 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 221 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 222 | ··<script> | 222 | ··<script> |
| 223 | ··let·initialized·=·false; | 223 | ··let·initialized·=·false; |
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| 415 | ······<p·class="built-using"> | 415 | ······<p·class="built-using"> |
| 416 | ········Built·using | 416 | ········Built·using |
| 417 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 417 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 418 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 418 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 419 | ······</p> | 419 | ······</p> |
| 420 | <p>Copyright·©·1996-202 | 420 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 421 | ····</footer> | 421 | ····</footer> |
| 422 | ··</div> | 422 | ··</div> |
| 423 | </main> | 423 | </main> |
| 424 | </div> | 424 | </div> |
| 425 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 425 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 426 | ··<script> | 426 | ··<script> |
| 427 | ··let·initialized·=·false; | 427 | ··let·initialized·=·false; |
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| 129 | ··<a·href="#visualizing-message-sequence-charts"·class="hover-link"> | 129 | ··<a·href="#visualizing-message-sequence-charts"·class="hover-link"> |
| 130 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 130 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 131 | ··</a> | 131 | ··</a> |
| 132 | ··<span·class="text">Visualizing·Message·Sequence·Charts</span> | 132 | ··<span·class="text">Visualizing·Message·Sequence·Charts</span> |
| 133 | </h2> | 133 | </h2> |
| 134 | <p>The·easiest·way·of·using·<code·class="inline">ET</code>,·is·to·just·use·it·as·a·graphical·tool·for | 134 | <p>The·easiest·way·of·using·<code·class="inline">ET</code>,·is·to·just·use·it·as·a·graphical·tool·for |
| 135 | displaying·message·sequence·charts.·In·order·to·do·that·you·need·to·first·start | 135 | displaying·message·sequence·charts.·In·order·to·do·that·you·need·to·first·start |
| 136 | a·<code·class="inline">Viewer</code>·(which·by·default·starts·a·<code·class="inline">Collector</code>):</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">······</span><span·class="p"·data-group-id=" | 136 | a·<code·class="inline">Viewer</code>·(which·by·default·starts·a·<code·class="inline">Collector</code>):</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">······</span><span·class="p"·data-group-id="6439761718-1">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">ViewerPid</span><span·class="p"·data-group-id="6439761718-1">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><sp[·...·truncated·by·diffoscope;·len:·489,·SHA:·330ac4cdf37ac05eed6a686dc0b8020dae6affd6b8ad7ec39a17b363157f7900·...·]-2">)</span><span·class="p">,</span><span·class="w"> |
| 137 | ······</span><span·class="n">CollectorPid</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">et_viewer</span><span·class="p">:</span><span·class="nf">get_collector_pid</span><span·class="p"·data-group-id=" | 137 | ······</span><span·class="n">CollectorPid</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">et_viewer</span><span·class="p">:</span><span·class="nf">get_collector_pid</span><span·class="p"·data-group-id="6439761718-5">(</span><span·class="n">ViewerPid</span><span·class="p"·data-group-id="6439761718-5">)</span><span·class="p">.</span></code></pre><p><a·href=""·id="report_event"></a></p><p>Then·you·send·events·to·the·<code·class="inline">Collector</code>·with·the·function |
| 138 | <a·href="et_collector.html#report_event/6"><code·class="inline">et_collector:report_event/6</code></a>·like·this:</p><pre><code·class="text">······et_collector:report_event(CollectorPid,85,from,to,message,extra_stuff).</code></pre><p>The·<code·class="inline">Viewer</code>·will·automatically·pull·events·from·the·<code·class="inline">Collector</code>·and·display | 138 | <a·href="et_collector.html#report_event/6"><code·class="inline">et_collector:report_event/6</code></a>·like·this:</p><pre><code·class="text">······et_collector:report_event(CollectorPid,85,from,to,message,extra_stuff).</code></pre><p>The·<code·class="inline">Viewer</code>·will·automatically·pull·events·from·the·<code·class="inline">Collector</code>·and·display |
| 139 | them·on·the·screen.</p><p>The·number·(in·this·case·85)·is·an·integer·from·1·to·100·that·specifies·the | 139 | them·on·the·screen.</p><p>The·number·(in·this·case·85)·is·an·integer·from·1·to·100·that·specifies·the |
| 140 | "detail·level"·of·the·message.·The·higher·the·number,·the·more·important·it·is. | 140 | "detail·level"·of·the·message.·The·higher·the·number,·the·more·important·it·is. |
| 141 | This·provides·a·crude·form·of·priority·filtering.</p><p>The·<code·class="inline">from</code>,·<code·class="inline">to</code>,·and·<code·class="inline">message</code>·parameters·are·exactly·what·they·sound·like. | 141 | This·provides·a·crude·form·of·priority·filtering.</p><p>The·<code·class="inline">from</code>,·<code·class="inline">to</code>,·and·<code·class="inline">message</code>·parameters·are·exactly·what·they·sound·like. |
| 142 | <code·class="inline">from</code>·and·<code·class="inline">to</code>·are·visualized·in·the·<code·class="inline">Viewer</code>·as·"lifelines",·with·the·message | 142 | <code·class="inline">from</code>·and·<code·class="inline">to</code>·are·visualized·in·the·<code·class="inline">Viewer</code>·as·"lifelines",·with·the·message |
| 143 | passing·from·one·to·the·other.·If·<code·class="inline">from</code>·and·<code·class="inline">to</code>·are·the·same·value,·then·it·is | 143 | passing·from·one·to·the·other.·If·<code·class="inline">from</code>·and·<code·class="inline">to</code>·are·the·same·value,·then·it·is |
| 144 | displayed·next·to·the·lifeline·as·an·"action".·The·<code·class="inline">extra_stuff</code>value·is·simply | 144 | displayed·next·to·the·lifeline·as·an·"action".·The·<code·class="inline">extra_stuff</code>value·is·simply |
| 145 | data·that·you·can·attach·that·will·be·displayed·when·someone·actually·clicks·on | 145 | data·that·you·can·attach·that·will·be·displayed·when·someone·actually·clicks·on |
| 146 | the·action·or·message·in·the·<code·class="inline">Viewer</code>·window.</p><p>The·module·<code·class="inline">et/examples/et_display_demo.erl</code>·illustrates·how·it·can·be·used:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w"> | 146 | the·action·or·message·in·the·<code·class="inline">Viewer</code>·window.</p><p>The·module·<code·class="inline">et/examples/et_display_demo.erl</code>·illustrates·how·it·can·be·used:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w"> |
| 147 | </span><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 147 | </span><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="3749667297-1">(</span><span·class="ss">et_display_demo</span><span·class="p"·data-group-id="3749667297-1">)</span><span·class="p">.</span><span·class="w"> |
| 148 | </span><span·class="w"> | 148 | </span><span·class="w"> |
| 149 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 149 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="3749667297-2">(</span><span·class="p"·data-group-id="3749667297-3">[</span><span·class="ss">test</span><span·class="p">/</span><span·class="mi">0</span><span·class="p"·data-group-id="3749667297-3">]</span><span·class="p"·data-group-id="3749667297-2">)</span><span·class="p">.</span><span·class="w"> |
| 150 | </span><span·class="nf">test</span><span·class="p"·data-group-id=" | 150 | </span><span·class="nf">test</span><span·class="p"·data-group-id="3749667297-4">(</span><span·class="p"·data-group-id="3749667297-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 151 | ····</span><span·class="p"·data-group-id=" | 151 | ····</span><span·class="p"·data-group-id="3749667297-5">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Viewer</span><span·class="p"·data-group-id="3749667297-5">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·[·...·truncated·by·diffoscope;·len:·724,·SHA:·3dc63aa05ee2b8caccfba1b7f85bdcacf83ec0fed10147faa01e1f76ab79b213·...·]-6">)</span><span·class="p">,</span><span·class="w"> |
| 152 | ····</span><span·class="n">Drink</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 152 | ····</span><span·class="n">Drink</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="3749667297-10">{</span><span·class="ss">drink</span><span·class="p">,</span><span·class="ss">iced_chai_latte</span><span·class="p"·data-group-id="3749667297-10">}</span><span·class="p">,</span><span·class="w"> |
| 153 | ····</span><span·class="n">Size</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 153 | ····</span><span·class="n">Size</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="3749667297-11">{</span><span·class="nb">size</span><span·class="p">,</span><span·class="ss">grande</span><span·class="p"·data-group-id="3749667297-11">}</span><span·class="p">,</span><span·class="w"> |
| 154 | ····</span><span·class="n">Milk</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 154 | ····</span><span·class="n">Milk</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="3749667297-12">{</span><span·class="ss">milk</span><span·class="p">,</span><span·class="ss">whole</span><span·class="p"·data-group-id="3749667297-12">}</span><span·class="p">,</span><span·class="w"> |
| 155 | ····</span><span·class="n">Flavor</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 155 | ····</span><span·class="n">Flavor</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="3749667297-13">{</span><span·class="ss">flavor</span><span·class="p">,</span><span·class="ss">vanilla</span><span·class="p"·data-group-id="3749667297-13">}</span><span·class="p">,</span><span·class="w"> |
| 156 | ····</span><span·class="n">C</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">et_viewer</span><span·class="p">:</span><span·class="nf">get_collector_pid</span><span·class="p"·data-group-id=" | 156 | ····</span><span·class="n">C</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">et_viewer</span><span·class="p">:</span><span·class="nf">get_collector_pid</span><span·class="p"·data-group-id="3749667297-14">(</span><span·class="n">Viewer</span><span·class="p"·data-group-id="3749667297-14">)</span><span·class="p">,</span><span·class="w"> |
| 157 | ····</span><span·class="nc">et_collector</span><span·class="p">:</span><span·class="nf">report_event</span><span·class="p"·data-group-id=" | 157 | ····</span><span·class="nc">et_collector</span><span·class="p">:</span><span·class="nf">report_event</span><span·class="p"·data-group-id="3749667297-15">(</span><span·class="n">C</span><span·class="p">,</span><span·class="mi">99</span><span·class="p">,</span><span·class="ss">customer</span><span·class="p">,</span><span·class="ss">barrista1</span><span·class="p">,</span><span·class="ss">place[·...·truncated·by·diffoscope;·len:·369,·SHA:·6eb1bce90875a9e19ffcf1c2447518050ea2d39bd6649cef552005f837b169a7·...·]-15">)</span><span·class="p">,</span><span·class="w"> |
| 158 | ····</span><span·class="nc">et_collector</span><span·class="p">:</span><span·class="nf">report_event</span><span·class="p"·data-group-id=" | 158 | ····</span><span·class="nc">et_collector</span><span·class="p">:</span><span·class="nf">report_event</span><span·class="p"·data-group-id="3749667297-17">(</span><span·class="n">C</span><span·class="p">,</span><span·class="mi">80</span><span·class="p">,</span><span·class="ss">barrista1</span><span·class="p">,</span><span·class="nb">register</span><span·class="p">,</span><span·class="ss">enter[·...·truncated·by·diffoscope;·len:·318,·SHA:·c634de5729df9204d49458ddbacc61b6e94ae2da6d75e8aeb671a9ded8ffc909·...·]-17">)</span><span·class="p">,</span><span·class="w"> |
| 159 | ····</span><span·class="nc">et_collector</span><span·class="p">:</span><span·class="nf">report_event</span><span·class="p"·data-group-id=" | 159 | ····</span><span·class="nc">et_collector</span><span·class="p">:</span><span·class="nf">report_event</span><span·class="p"·data-group-id="3749667297-19">(</span><span·class="n">C</span><span·class="p">,</span><span·class="mi">80</span><span·class="p">,</span><span·class="nb">register</span><span·class="p">,</span><span·class="ss">barrista1</span><span·class="p">,</span><span·class="ss">give_[·...·truncated·by·diffoscope;·len:·114,·SHA:·2e5fd601fe53d4b70b86c9cbb83f0434750e2df328eee207fce7722e792855f2·...·]-19">)</span><span·class="p">,</span><span·class="w"> |
| 160 | ····</span><span·class="nc">et_collector</span><span·class="p">:</span><span·class="nf">report_event</span><span·class="p"·data-group-id=" | 160 | ····</span><span·class="nc">et_collector</span><span·class="p">:</span><span·class="nf">report_event</span><span·class="p"·data-group-id="3749667297-20">(</span><span·class="n">C</span><span·class="p">,</span><span·class="mi">80</span><span·class="p">,</span><span·class="ss">barrista1</span><span·class="p">,</span><span·class="ss">barrista1</span><span·class="p">,</span><span·class="ss">get_[·...·truncated·by·diffoscope;·len:·262,·SHA:·cfc6ca5a9bbb364aa5ebf3cf67939a37f3cc97811d36f66cd6e077d8aa94770a·...·]-20">)</span><span·class="p">,</span><span·class="w"> |
| 161 | ····</span><span·class="nc">et_collector</span><span·class="p">:</span><span·class="nf">report_event</span><span·class="p"·data-group-id=" | 161 | ····</span><span·class="nc">et_collector</span><span·class="p">:</span><span·class="nf">report_event</span><span·class="p"·data-group-id="3749667297-22">(</span><span·class="n">C</span><span·class="p">,</span><span·class="mi">80</span><span·class="p">,</span><span·class="ss">barrista1</span><span·class="p">,</span><span·class="ss">barrista2</span><span·class="p">,</span><span·class="ss">give[·...·truncated·by·diffoscope;·len:·184,·SHA:·67336efadea90def384ae6796ad3f949bde98b9ffea98a9dbb1609d9b105f631·...·]-22">)</span><span·class="p">,</span><span·class="w"> |
| 162 | ····</span><span·class="nc">et_collector</span><span·class="p">:</span><span·class="nf">report_event</span><span·class="p"·data-group-id=" | 162 | ····</span><span·class="nc">et_collector</span><span·class="p">:</span><span·class="nf">report_event</span><span·class="p"·data-group-id="3749667297-24">(</span><span·class="n">C</span><span·class="p">,</span><span·class="mi">90</span><span·class="p">,</span><span·class="ss">barrista1</span><span·class="p">,</span><span·class="ss">customer</span><span·class="p">,</span><span·class="ss">reque[·...·truncated·by·diffoscope;·len:·117,·SHA:·2837cd027c2991f8fc7ac3e810cd0f7328a38a8708106dec306fafb4ae7df88d·...·]-24">)</span><span·class="p">,</span><span·class="w"> |
| 163 | ····</span><span·class="nc">et_collector</span><span·class="p">:</span><span·class="nf">report_event</span><span·class="p"·data-group-id=" | 163 | ····</span><span·class="nc">et_collector</span><span·class="p">:</span><span·class="nf">report_event</span><span·class="p"·data-group-id="3749667297-25">(</span><span·class="n">C</span><span·class="p">,</span><span·class="mi">90</span><span·class="p">,</span><span·class="ss">customer</span><span·class="p">,</span><span·class="ss">barrista1</span><span·class="p">,</span><span·class="ss">pay_m[·...·truncated·by·diffoscope;·len:·113,·SHA:·21d0b0d81bd49335fc4ec337a7ed3ee60b4c7050da25bb043b18945812e28473·...·]-25">)</span><span·class="p">,</span><span·class="w"> |
| 164 | ····</span><span·class="nc">et_collector</span><span·class="p">:</span><span·class="nf">report_event</span><span·class="p"·data-group-id=" | 164 | ····</span><span·class="nc">et_collector</span><span·class="p">:</span><span·class="nf">report_event</span><span·class="p"·data-group-id="3749667297-26">(</span><span·class="n">C</span><span·class="p">,</span><span·class="mi">80</span><span·class="p">,</span><span·class="ss">barrista2</span><span·class="p">,</span><span·class="ss">barrista2</span><span·class="p">,</span><span·class="ss">get_[·...·truncated·by·diffoscope;·len:·188,·SHA:·79c10aba383c62acfc853ac62216872187a73486f2a210dca3b11a82516b1b90·...·]-26">)</span><span·class="p">,</span><span·class="w"> |
| 165 | ····</span><span·class="nc">et_collector</span><span·class="p">:</span><span·class="nf">report_event</span><span·class="p"·data-group-id=" | 165 | ····</span><span·class="nc">et_collector</span><span·class="p">:</span><span·class="nf">report_event</span><span·class="p"·data-group-id="3749667297-28">(</span><span·class="n">C</span><span·class="p">,</span><span·class="mi">80</span><span·class="p">,</span><span·class="ss">barrista2</span><span·class="p">,</span><span·class="ss">barrista2</span><span·class="p">,</span><span·class="ss">add_[·...·truncated·by·diffoscope;·len:·215,·SHA:·1b1d4eab279e24e9895e0d91f6218b63638c5d6e80ce55e8ce224e177db1e4ef·...·]-28">)</span><span·class="p">,</span><span·class="w"> |
| 166 | ····</span><span·class="nc">et_collector</span><span·class="p">:</span><span·class="nf">report_event</span><span·class="p"·data-group-id=" | 166 | ····</span><span·class="nc">et_collector</span><span·class="p">:</span><span·class="nf">report_event</span><span·class="p"·data-group-id="3749667297-30">(</span><span·class="n">C</span><span·class="p">,</span><span·class="mi">80</span><span·class="p">,</span><span·class="ss">barrista2</span><span·class="p">,</span><span·class="ss">barrista2</span><span·class="p">,</span><span·class="ss">add_[·...·truncated·by·diffoscope;·len:·211,·SHA:·86cc0d4a9b1fd83040b94f2d3fb17a85fd626c4a4efc600376139082f2fc4af2·...·]-30">)</span><span·class="p">,</span><span·class="w"> |
| 167 | ····</span><span·class="nc">et_collector</span><span·class="p">:</span><span·class="nf">report_event</span><span·class="p"·data-group-id=" | 167 | ····</span><span·class="nc">et_collector</span><span·class="p">:</span><span·class="nf">report_event</span><span·class="p"·data-group-id="3749667297-32">(</span><span·class="n">C</span><span·class="p">,</span><span·class="mi">80</span><span·class="p">,</span><span·class="ss">barrista2</span><span·class="p">,</span><span·class="ss">barrista2</span><span·class="p">,</span><span·class="ss">add_[·...·truncated·by·diffoscope;·len:·183,·SHA:·c525dea328bc8b42c4e513607396b2208e9d727c9a252eeede857ee24648180e·...·]-32">)</span><span·class="p">,</span><span·class="w"> |
| 168 | ····</span><span·class="nc">et_collector</span><span·class="p">:</span><span·class="nf">report_event</span><span·class="p"·data-group-id=" | 168 | ····</span><span·class="nc">et_collector</span><span·class="p">:</span><span·class="nf">report_event</span><span·class="p"·data-group-id="3749667297-34">(</span><span·class="n">C</span><span·class="p">,</span><span·class="mi">80</span><span·class="p">,</span><span·class="ss">barrista2</span><span·class="p">,</span><span·class="ss">barrista2</span><span·class="p">,</span><span·class="ss">swir[·...·truncated·by·diffoscope;·len:·181,·SHA:·0c40201d55c01ea5b727b4cbeb73fdd46c1759fd386eabe3c6ab9b25e992701e·...·]-34">)</span><span·class="p">,</span><span·class="w"> |
| 169 | ····</span><span·class="nc">et_collector</span><span·class="p">:</span><span·class="nf">report_event</span><span·class="p"·data-group-id=" | 169 | ····</span><span·class="nc">et_collector</span><span·class="p">:</span><span·class="nf">report_event</span><span·class="p"·data-group-id="3749667297-36">(</span><span·class="n">C</span><span·class="p">,</span><span·class="mi">80</span><span·class="p">,</span><span·class="ss">barrista2</span><span·class="p">,</span><span·class="ss">customer</span><span·class="p">,</span><span·class="ss">give_[·...·truncated·by·diffoscope;·len:·273,·SHA:·a4d6a7bc0307a861e4dcbd470e79767a114aa508a9c6bfa7ca0388daa6fca609·...·]-36">)</span><span·class="p">,</span><span·class="w"> |
| 170 | ····</span><span·class="ss">ok</span><span·class="p">.</span></code></pre><p>When·you·run·the·<code·class="inline">et_display_demo:test().</code>·function·in·the·example·above,·the | 170 | ····</span><span·class="ss">ok</span><span·class="p">.</span></code></pre><p>When·you·run·the·<code·class="inline">et_display_demo:test().</code>·function·in·the·example·above,·the |
| 171 | <code·class="inline">Viewer</code>·window·will·look·like·this:</p><p><img·src="assets/coffee_order.png"·alt="Screenshot·of·the·Viewer·window"·title="Screenshot·of·the·Viewer·window"/></p><h2·id="four-modules"·class="section-heading"> | 171 | <code·class="inline">Viewer</code>·window·will·look·like·this:</p><p><img·src="assets/coffee_order.png"·alt="Screenshot·of·the·Viewer·window"·title="Screenshot·of·the·Viewer·window"/></p><h2·id="four-modules"·class="section-heading"> |
| 172 | ··<a·href="#four-modules"·class="hover-link"> | 172 | ··<a·href="#four-modules"·class="hover-link"> |
| 173 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 173 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 174 | ··</a> | 174 | ··</a> |
| 175 | ··<span·class="text">Four·Modules</span> | 175 | ··<span·class="text">Four·Modules</span> |
| 176 | </h2> | 176 | </h2> |
| Offset 195, 15 lines modified | Offset 195, 15 lines modified | ||
| 195 | <code·class="inline">Tracer</code>·of·the·<code·class="inline">Raw·Trace·Data</code>.</p><p>Erlang·tracing·is·a·seething·pile·of·pain·that·involves·reasonably·complex | 195 | <code·class="inline">Tracer</code>·of·the·<code·class="inline">Raw·Trace·Data</code>.</p><p>Erlang·tracing·is·a·seething·pile·of·pain·that·involves·reasonably·complex |
| 196 | knowledge·of·clever·ports,·tracing·return·formats,·and·specialized·tracing | 196 | knowledge·of·clever·ports,·tracing·return·formats,·and·specialized·tracing |
| 197 | <code·class="inline">MatchSpecs</code>·(which·are·really·their·own·special·kind·of·hell).·The·tracing | 197 | <code·class="inline">MatchSpecs</code>·(which·are·really·their·own·special·kind·of·hell).·The·tracing |
| 198 | mechanism·is·very·powerful·indeed,·but·it·can·be·hard·to·grasp.</p><p>Luckily·there·is·a·simplified·way·to·start·tracing·of·<a·href="et.html#trace_me/5"><code·class="inline">et:trace_me/5</code></a>·function | 198 | mechanism·is·very·powerful·indeed,·but·it·can·be·hard·to·grasp.</p><p>Luckily·there·is·a·simplified·way·to·start·tracing·of·<a·href="et.html#trace_me/5"><code·class="inline">et:trace_me/5</code></a>·function |
| 199 | calls.·The·idea·is·that·you·should·instrument·your·code·with·calls·to | 199 | calls.·The·idea·is·that·you·should·instrument·your·code·with·calls·to |
| 200 | <a·href="et.html#trace_me/5"><code·class="inline">et:trace_me/5</code></a>·in·strategic·places·where·you·have·interesting·information | 200 | <a·href="et.html#trace_me/5"><code·class="inline">et:trace_me/5</code></a>·in·strategic·places·where·you·have·interesting·information |
| 201 | available·in·your·program.·Then·you·just·start·the·<code·class="inline">Collector</code>·with·global | 201 | available·in·your·program.·Then·you·just·start·the·<code·class="inline">Collector</code>·with·global |
| 202 | tracing·enabled:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">······</span><span·class="nc">et_viewer</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id=" | 202 | tracing·enabled:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">······</span><span·class="nc">et_viewer</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id="0657731197-1">(</span><span·class="p"·data-group-id="0657731197-2">[</span><span·class="p"·data-group-id="0657731197-3">{</span><span·class="ss">trace_global</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">true</span><span·class="p"·[·...·truncated·by·diffoscope;·len:·553,·SHA:·9cdf783e4f40b3bdf2103d6b05cc57a7d4c96cb8393a3a3854754afbbcc10b3b·...·]-1">)</span><span·class="p">.</span></code></pre><p>This·will·start·a·<code·class="inline">Collector</code>,·a·<code·class="inline">Viewer</code>·and·also·start·the·tracing·of |
| 203 | <a·href="et.html#trace_me/5"><code·class="inline">et:trace_me/5</code></a>·function·calls.·The·<code·class="inline">Raw·Trace·Data</code>·is·collected·by·the | 203 | <a·href="et.html#trace_me/5"><code·class="inline">et:trace_me/5</code></a>·function·calls.·The·<code·class="inline">Raw·Trace·Data</code>·is·collected·by·the |
| 204 | <code·class="inline">Collector</code>·and·a·view·of·it·is·displayed·on·the·screen·by·the·<code·class="inline">Viewer</code>.·You·can | 204 | <code·class="inline">Collector</code>·and·a·view·of·it·is·displayed·on·the·screen·by·the·<code·class="inline">Viewer</code>.·You·can |
| 205 | define·your·own·"views"·of·the·data·by·implementing·your·own·<code·class="inline">Filter</code>·functions | 205 | define·your·own·"views"·of·the·data·by·implementing·your·own·<code·class="inline">Filter</code>·functions |
| 206 | and·register·them·in·the·<code·class="inline">Viewer</code>.</p><h2·id="the-collector-and-viewer"·class="section-heading"> | 206 | and·register·them·in·the·<code·class="inline">Viewer</code>.</p><h2·id="the-collector-and-viewer"·class="section-heading"> |
| 207 | ··<a·href="#the-collector-and-viewer"·class="hover-link"> | 207 | ··<a·href="#the-collector-and-viewer"·class="hover-link"> |
| 208 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 208 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 209 | ··</a> | 209 | ··</a> |
| Offset 251, 44 lines modified | Offset 251, 44 lines modified | ||
| 251 | ··</a> | 251 | ··</a> |
| 252 | ··<span·class="text">How·To·Put·It·Together</span> | 252 | ··<span·class="text">How·To·Put·It·Together</span> |
| 253 | </h2> | 253 | </h2> |
| 254 | <p>The·<code·class="inline">Collector</code>·automatically·registers·itself·to·listen·for·trace·<code·class="inline">Events</code>,·so | 254 | <p>The·<code·class="inline">Collector</code>·automatically·registers·itself·to·listen·for·trace·<code·class="inline">Events</code>,·so |
| 255 | all·you·have·to·do·is·enable·them.</p><p>For·those·people·who·want·to·do·general·tracing,·consult·the·<code·class="inline">dbg</code>·module·on·how | 255 | all·you·have·to·do·is·enable·them.</p><p>For·those·people·who·want·to·do·general·tracing,·consult·the·<code·class="inline">dbg</code>·module·on·how |
| 256 | to·trace·whatever·you're·interested·in·and·let·it·work·its·magic.·If·you·just | 256 | to·trace·whatever·you're·interested·in·and·let·it·work·its·magic.·If·you·just |
| 257 | want·<a·href="et.html#trace_me/5"><code·class="inline">et:trace_me/5</code></a>·to·work,·do·the·following:</p><ol><li>Create·a·<code·class="inline">Collector</code></li><li>Create·a·<code·class="inline">Viewer</code>·(this·can·do·step·#1·for·you)</li><li>Turn·on·and·pare·down·debugging</li></ol><p>The·module·<code·class="inline">et/examples/et_trace_demo.erl</code>·achieves·this.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w"> | 257 | want·<a·href="et.html#trace_me/5"><code·class="inline">et:trace_me/5</code></a>·to·work,·do·the·following:</p><ol><li>Create·a·<code·class="inline">Collector</code></li><li>Create·a·<code·class="inline">Viewer</code>·(this·can·do·step·#1·for·you)</li><li>Turn·on·and·pare·down·debugging</li></ol><p>The·module·<code·class="inline">et/examples/et_trace_demo.erl</code>·achieves·this.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w"> |
| 258 | </span><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 258 | </span><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="3199689835-1">(</span><span·class="ss">et_trace_demo</span><span·class="p"·data-group-id="3199689835-1">)</span><span·class="p">.</span><span·class="w"> |
| 259 | </span><span·class="w"> | 259 | </span><span·class="w"> |
| 260 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 260 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="3199689835-2">(</span><span·class="p"·data-group-id="3199689835-3">[</span><span·class="ss">test</span><span·class="p">/</span><span·class="mi">0</span><span·class="p"·data-group-id="3199689835-3">]</span><span·class="p"·data-group-id="3199689835-2">)</span><span·class="p">.</span><span·class="w"> |
| 261 | </span><span·class="nf">test</span><span·class="p"·data-group-id=" | 261 | </span><span·class="nf">test</span><span·class="p"·data-group-id="3199689835-4">(</span><span·class="p"·data-group-id="3199689835-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 262 | ····</span><span·class="nc">et_viewer</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id=" | 262 | ····</span><span·class="nc">et_viewer</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id="3199689835-5">(</span><span·class="p"·data-group-id="3199689835-6">[</span><span·class="w"> |
| 263 | ········</span><span·class="p"·data-group-id=" | 263 | ········</span><span·class="p"·data-group-id="3199689835-7">{</span><span·class="ss">title</span><span·class="p">,</span><span·class="s">"Coffee·Order"</span><span·class="p"·data-group-id="3199689835-7">}</span><span·class="p">,</span><span·class="w"> |
| 264 | ········</span><span·class="p"·data-group-id=" | 264 | ········</span><span·class="p"·data-group-id="3199689835-8">{</span><span·class="ss">trace_global</span><span·class="p">,</span><span·class="ss">true</span><span·class="p"·data-group-id="3199689835-8">}</span><span·class="p">,</span><span·class="w"> |
| 265 | ········</span><span·class="p"·data-group-id=" | 265 | ········</span><span·class="p"·data-group-id="3199689835-9">{</span><span·class="nb">trace_pattern</span><span·class="p">,</span><span·class="p"·data-group-id="3199689835-10">{</span><span·class="ss">et</span><span·class="p">,</span><span·class="ss">max</span><span·class="p"·data-group-id="3199689835-[·...·truncated·by·diffoscope;·len:·53,·SHA:·14d9ea569f56fcc67d22450d0fbf589a8063ff1ed57caece7fe53519f04677d4·...·]-9">}</span><span·class="p">,</span><span·class="w"> |
| 266 | ········</span><span·class="p"·data-group-id=" | 266 | ········</span><span·class="p"·data-group-id="3199689835-11">{</span><span·class="ss">max_actors</span><span·class="p">,</span><span·class="mi">10</span><span·class="p"·data-group-id="3199689835-11">}</span><span·class="w"> |
| 267 | ······</span><span·class="p"·data-group-id=" | 267 | ······</span><span·class="p"·data-group-id="3199689835-6">]</span><span·class="p"·data-group-id="3199689835-5">)</span><span·class="p">,</span><span·class="w"> |
| 268 | ······</span><span·class="c1">%%·dbg:p(all,call),</span><span·class="w"> | 268 | ······</span><span·class="c1">%%·dbg:p(all,call),</span><span·class="w"> |
| 269 | ······</span><span·class="c1">%%·dbg:tpl(et,·trace_me,·5,·[]),</span><span·class="w"> | 269 | ······</span><span·class="c1">%%·dbg:tpl(et,·trace_me,·5,·[]),</span><span·class="w"> |
| 270 | ······</span><span·class="n">Drink</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 270 | ······</span><span·class="n">Drink</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="3199689835-12">{</span><span·class="ss">drink</span><span·class="p">,</span><span·class="ss">iced_chai_latte</span><span·class="p"·data-group-id="3199689835-12">}</span><span·class="p">,</span><span·class="w"> |
| 271 | ······</span><span·class="n">Size</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 271 | ······</span><span·class="n">Size</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="3199689835-13">{</span><span·class="nb">size</span><span·class="p">,</span><span·class="ss">grande</span><span·class="p"·data-group-id="3199689835-13">}</span><span·class="p">,</span><span·class="w"> |
| 272 | ······</span><span·class="n">Milk</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 272 | ······</span><span·class="n">Milk</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="3199689835-14">{</span><span·class="ss">milk</span><span·class="p">,</span><span·class="ss">whole</span><span·class="p"·data-group-id="3199689835-14">}</span><span·class="p">,</span><span·class="w"> |
| 273 | ······</span><span·class="n">Flavor</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 273 | ······</span><span·class="n">Flavor</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="3199689835-15">{</span><span·class="ss">flavor</span><span·class="p">,</span><span·class="ss">vanilla</span><span·class="p"·data-group-id="3199689835-15">}</span><span·class="p">,</span><span·class="w"> |
| 274 | ······</span><span·class="nc">et</span><span·class="p">:</span><span·class="nf">trace_me</span><span·class="p"·data-group-id=" | 274 | ······</span><span·class="nc">et</span><span·class="p">:</span><span·class="nf">trace_me</span><span·class="p"·data-group-id="3199689835-16">(</span><span·class="mi">99</span><span·class="p">,</span><span·class="ss">customer</span><span·class="p">,</span><span·class="ss">barrista1</span><span·class="p">,</span><span·class="ss">place_order</span><span·class="p">,</span><span·class[·...·truncated·by·diffoscope;·len:·321,·SHA:·ee22fc5867c1626c5e2f9168018731dfd8ad6262480fdd67cc3e42d714fe4bd2·...·]-16">)</span><span·class="p">,</span><span·class="w"> |
| 275 | ······</span><span·class="nc">et</span><span·class="p">:</span><span·class="nf">trace_me</span><span·class="p"·data-group-id=" | 275 | ······</span><span·class="nc">et</span><span·class="p">:</span><span·class="nf">trace_me</span><span·class="p"·data-group-id="3199689835-18">(</span><span·class="mi">80</span><span·class="p">,</span><span·class="ss">barrista1</span><span·class="p">,</span><span·class="nb">register</span><span·class="p">,</span><span·class="ss">enter_order</span><span·class="p">,</span><span·class[·...·truncated·by·diffoscope;·len:·270,·SHA:·b79f685f8dba08ff2cdf1acbc33407c30488ce7da43d33a72c4d258226d35cbf·...·]-18">)</span><span·class="p">,</span><span·class="w"> |
| 276 | ······</span><span·class="nc">et</span><span·class="p">:</span><span·class="nf">trace_me</span><span·class="p"·data-group-id=" | 276 | ······</span><span·class="nc">et</span><span·class="p">:</span><span·class="nf">trace_me</span><span·class="p"·data-group-id="3199689835-20">(</span><span·class="mi">80</span><span·class="p">,</span><span·class="nb">register</span><span·class="p">,</span><span·class="ss">barrista1</span><span·class="p">,</span><span·class="ss">give_total</span><span·class="p">,</span><span·class=[·...·truncated·by·diffoscope;·len:·66,·SHA:·ba3226f700337f05e10b61b6fe7e0b08ddd9f67a256bc904ecfc932b6ecaebc6·...·]-20">)</span><span·class="p">,</span><span·class="w"> |
| 277 | ······</span><span·class="nc">et</span><span·class="p">:</span><span·class="nf">trace_me</span><span·class="p"·data-group-id=" | 277 | ······</span><span·class="nc">et</span><span·class="p">:</span><span·class="nf">trace_me</span><span·class="p"·data-group-id="3199689835-21">(</span><span·class="mi">80</span><span·class="p">,</span><span·class="ss">barrista1</span><span·class="p">,</span><span·class="ss">barrista1</span><span·class="p">,</span><span·class="ss">get_cup</span><span·class="p">,</span><span·class="p[·...·truncated·by·diffoscope;·len:·214,·SHA:·e4ddec2f21bd6eb1975f0f60b3b20441520facbe58b62a6f416a09316e058db4·...·]-21">)</span><span·class="p">,</span><span·class="w"> |
| 278 | ······</span><span·class="nc">et</span><span·class="p">:</span><span·class="nf">trace_me</span><span·class="p"·data-group-id=" | 278 | ······</span><span·class="nc">et</span><span·class="p">:</span><span·class="nf">trace_me</span><span·class="p"·data-group-id="3199689835-23">(</span><span·class="mi">80</span><span·class="p">,</span><span·class="ss">barrista1</span><span·class="p">,</span><span·class="ss">barrista2</span><span·class="p">,</span><span·class="ss">give_cup</span><span·class="p">,</span><span·class="[·...·truncated·by·diffoscope;·len:·136,·SHA:·0db21f32f0b8fc8d27272b026fc7bef86f9fe0e2443d20382b11a0e72e34bccd·...·]-23">)</span><span·class="p">,</span><span·class="w"> |
| 279 | ······</span><span·class="nc">et</span><span·class="p">:</span><span·class="nf">trace_me</span><span·class="p"·data-group-id=" | 279 | ······</span><span·class="nc">et</span><span·class="p">:</span><span·class="nf">trace_me</span><span·class="p"·data-group-id="3199689835-25">(</span><span·class="mi">90</span><span·class="p">,</span><span·class="ss">barrista1</span><span·class="p">,</span><span·class="ss">customer</span><span·class="p">,</span><span·class="ss">request_money</span><span·class="p">,</span><span·cla[·...·truncated·by·diffoscope;·len:·69,·SHA:·c93f466b1dda2cbe22ac50d1d24dc80bf6872048cc23750504a938b90c5756b0·...·]-25">)</span><span·class="p">,</span><span·class="w"> |
| 280 | ······</span><span·class="nc">et</span><span·class="p">:</span><span·class="nf">trace_me</span><span·class="p"·data-group-id=" | 280 | ······</span><span·class="nc">et</span><span·class="p">:</span><span·class="nf">trace_me</span><span·class="p"·data-group-id="3199689835-26">(</span><span·class="mi">90</span><span·class="p">,</span><span·class="ss">customer</span><span·class="p">,</span><span·class="ss">barrista1</span><span·class="p">,</span><span·class="ss">pay_money</span><span·class="p">,</span><span·class="[·...·truncated·by·diffoscope;·len:·65,·SHA:·d13c8e4d79df8bbefe1e16bfdadf02190df0f81f7ea26a0284f0fe4580688aa2·...·]-26">)</span><span·class="p">,</span><span·class="w"> |
| 281 | ······</span><span·class="nc">et</span><span·class="p">:</span><span·class="nf">trace_me</span><span·class="p"·data-group-id=" | 281 | ······</span><span·class="nc">et</span><span·class="p">:</span><span·class="nf">trace_me</span><span·class="p"·data-group-id="3199689835-27">(</span><span·class="mi">80</span><span·class="p">,</span><span·class="ss">barrista2</span><span·class="p">,</span><span·class="ss">barrista2</span><span·class="p">,</span><span·class="ss">get_chai_mix</span><span·class="p">,</span><span·cla[·...·truncated·by·diffoscope;·len:·140,·SHA:·3cb5fff53a7e534ef050399e3838ab61ccab55ac6ff33d3c5d0a9547bbb9b89f·...·]-27">)</span><span·class="p">,</span><span·class="w"> |
| 282 | ······</span><span·class="nc">et</span><span·class="p">:</span><span·class="nf">trace_me</span><span·class="p"·data-group-id=" | 282 | ······</span><span·class="nc">et</span><span·class="p">:</span><span·class="nf">trace_me</span><span·class="p"·data-group-id="3199689835-29">(</span><span·class="mi">80</span><span·class="p">,</span><span·class="ss">barrista2</span><span·class="p">,</span><span·class="ss">barrista2</span><span·class="p">,</span><span·class="ss">add_flavor</span><span·class="p">,</span><span·class[·...·truncated·by·diffoscope;·len:·167,·SHA:·14950f315a194e66134b4d7f44c695febbf3733260aa99bef2a027e65d6b08a4·...·]-29">)</span><span·class="p">,</span><span·class="w"> |
| 283 | ······</span><span·class="nc">et</span><span·class="p">:</span><span·class="nf">trace_me</span><span·class="p"·data-group-id=" | 283 | ······</span><span·class="nc">et</span><span·class="p">:</span><span·class="nf">trace_me</span><span·class="p"·data-group-id="3199689835-31">(</span><span·class="mi">80</span><span·class="p">,</span><span·class="ss">barrista2</span><span·class="p">,</span><span·class="ss">barrista2</span><span·class="p">,</span><span·class="ss">add_milk</span><span·class="p">,</span><span·class="[·...·truncated·by·diffoscope;·len:·163,·SHA:·f6bd4249362ddac9dd0b937e13919fdbb66efaa095af0fd79997aba20f84c6a6·...·]-31">)</span><span·class="p">,</span><span·class="w"> |
| 284 | ······</span><span·class="nc">et</span><span·class="p">:</span><span·class="nf">trace_me</span><span·class="p"·data-group-id=" | 284 | ······</span><span·class="nc">et</span><span·class="p">:</span><span·class="nf">trace_me</span><span·class="p"·data-group-id="3199689835-33">(</span><span·class="mi">80</span><span·class="p">,</span><span·class="ss">barrista2</span><span·class="p">,</span><span·class="ss">barrista2</span><span·class="p">,</span><span·class="ss">add_ice</span><span·class="p">,</span><span·class="p[·...·truncated·by·diffoscope;·len:·135,·SHA:·62e2141ef32afe16012f13a228326726d5bd9b64571b031ce66671818a0baa38·...·]-33">)</span><span·class="p">,</span><span·class="w"> |
| 285 | ······</span><span·class="nc">et</span><span·class="p">:</span><span·class="nf">trace_me</span><span·class="p"·data-group-id=" | 285 | ······</span><span·class="nc">et</span><span·class="p">:</span><span·class="nf">trace_me</span><span·class="p"·data-group-id="3199689835-35">(</span><span·class="mi">80</span><span·class="p">,</span><span·class="ss">barrista2</span><span·class="p">,</span><span·class="ss">barrista2</span><span·class="p">,</span><span·class="ss">swirl</span><span·class="p">,</span><span·class="p"·[·...·truncated·by·diffoscope;·len:·133,·SHA:·8f9455a6b53740b25b9f86b1c1db7bb19dccff29b10c9fa48519396e94177d37·...·]-35">)</span><span·class="p">,</span><span·class="w"> |
| 286 | ······</span><span·class="nc">et</span><span·class="p">:</span><span·class="nf">trace_me</span><span·class="p"·data-group-id=" | 286 | ······</span><span·class="nc">et</span><span·class="p">:</span><span·class="nf">trace_me</span><span·class="p"·data-group-id="3199689835-37">(</span><span·class="mi">80</span><span·class="p">,</span><span·class="ss">barrista2</span><span·class="p">,</span><span·class="ss">customer</span><span·class="p">,</span><span·class="ss">give_tasty_beverage</span><span·class="p">,</span><sp[·...·truncated·by·diffoscope;·len:·225,·SHA:·68c32bd28e8b2be11d68628b47a50643a3bfba87a75d17d257addfd7fe202963·...·]-37">)</span><span·class="p">,</span><span·class="w"> |
| 287 | ······</span><span·class="ss">ok</span><span·class="p">.</span></code></pre><p>Running·through·the·above,·the·most·important·points·are:</p><ul><li>Turn·on·global·tracing</li><li>Set·a·<code·class="inline">Trace·Pattern</code></li><li>Tell·<code·class="inline">dbg</code>·to·trace·function·Calls</li><li>Tell·it·specifically·to·trace·the·<a·href="et.html#trace_me/5"><code·class="inline">et:trace_me/5</code></a>·function</li></ul><p>When·you·run·the·<code·class="inline">et_trace_demo:test()</code>·function·above,·the·<code·class="inline">Viewer</code>·window·will | 287 | ······</span><span·class="ss">ok</span><span·class="p">.</span></code></pre><p>Running·through·the·above,·the·most·important·points·are:</p><ul><li>Turn·on·global·tracing</li><li>Set·a·<code·class="inline">Trace·Pattern</code></li><li>Tell·<code·class="inline">dbg</code>·to·trace·function·Calls</li><li>Tell·it·specifically·to·trace·the·<a·href="et.html#trace_me/5"><code·class="inline">et:trace_me/5</code></a>·function</li></ul><p>When·you·run·the·<code·class="inline">et_trace_demo:test()</code>·function·above,·the·<code·class="inline">Viewer</code>·window·will |
| 288 | look·like·this·screenshot:</p><p><img·src="assets/coffee_order.png"·alt="Screenshot·of·the·Viewer·window"·title="Screenshot·of·the·Viewer·window"/></p> | 288 | look·like·this·screenshot:</p><p><img·src="assets/coffee_order.png"·alt="Screenshot·of·the·Viewer·window"·title="Screenshot·of·the·Viewer·window"/></p> |
| 289 | </div> | 289 | </div> |
| 290 | <div·class="bottom-actions"·id="bottom-actions"> | 290 | <div·class="bottom-actions"·id="bottom-actions"> |
| 291 | ··<div·class="bottom-actions-item"> | 291 | ··<div·class="bottom-actions-item"> |
| Offset 333, 15 lines modified | Offset 333, 15 lines modified | ||
| 333 | ······<p·class="built-using"> | 333 | ······<p·class="built-using"> |
| 334 | ········Built·using | 334 | ········Built·using |
| 335 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 335 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 336 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 336 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 337 | ······</p> | 337 | ······</p> |
| 338 | <p>Copyright·©·1996-202 | 338 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 339 | ····</footer> | 339 | ····</footer> |
| 340 | ··</div> | 340 | ··</div> |
| 341 | </main> | 341 | </main> |
| 342 | </div> | 342 | </div> |
| 343 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 343 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 344 | ··<script> | 344 | ··<script> |
| 345 | ··let·initialized·=·false; | 345 | ··let·initialized·=·false; |
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| 549 | ······<p·class="built-using"> | 549 | ······<p·class="built-using"> |
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| 562 | ······</p> | 562 | ······</p> |
| 563 | <p>Copyright·©·1996-202 | 563 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 146 | <p>Copyright·©·1996-202 | 146 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 148 | <p>Copyright·©·1996-202 | 148 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 149 | ····</footer> | 149 | ····</footer> |
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| 795 | <p>Copyright·©·1996-202 | 795 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 796 | ····</footer> | 796 | ····</footer> |
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| 342 | ······</p> | 342 | ······</p> |
| 343 | <p>Copyright·©·1996-202 | 343 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 344 | ····</footer> | 344 | ····</footer> |
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| 157 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 157 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 158 | ······</p> | 158 | ······</p> |
| 159 | <p>Copyright·©·1996-202 | 159 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 160 | ····</footer> | 160 | ····</footer> |
| 161 | ··</div> | 161 | ··</div> |
| 162 | </main> | 162 | </main> |
| 163 | </div> | 163 | </div> |
| 164 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 164 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 139 | </h3> | 139 | </h3> |
| 140 | <ul><li><p>Fix·so·that·when·running·tests·in·parallel·and·one·test·is·cancelled·due·to·a·failing·setup,·it·is·report·as·cancelled.·Before·this·fix·the·cancellation·was·ignored.</p><p>Own·Id:·OTP-19630·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9794"·title="">PR-9794</a></p></li></ul><h3·id="improvements-and-new-features"·class="section-heading"> | 140 | <ul><li><p>Fix·so·that·when·running·tests·in·parallel·and·one·test·is·cancelled·due·to·a·failing·setup,·it·is·report·as·cancelled.·Before·this·fix·the·cancellation·was·ignored.</p><p>Own·Id:·OTP-19630·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9794"·title="">PR-9794</a></p></li></ul><h3·id="improvements-and-new-features"·class="section-heading"> |
| 141 | ··<a·href="#improvements-and-new-features"·class="hover-link"> | 141 | ··<a·href="#improvements-and-new-features"·class="hover-link"> |
| 142 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 142 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 143 | ··</a> | 143 | ··</a> |
| 144 | ··<span·class="text">Improvements·and·New·Features</span> | 144 | ··<span·class="text">Improvements·and·New·Features</span> |
| 145 | </h3> | 145 | </h3> |
| 146 | <ul><li><p><a·href="https://www.erlang.org/eeps/eep-0069">EEP-69:·Nominal·Types</a>·has·been·implemented.·As·a·side·effect,·nominal·types·can·encode·opaque·types.·We·changed·all·opaque-handling·logic·and·improved·opaque·warnings·in·Dialyzer.</p><p>All·existing·Erlang·type·systems·are·structural:·two·types·are·seen·as·equivalent·if·their·structures·are·the·same.·Type·comparisons·are·based·on·the·structures·of·the·types,·not·on·how·the·user·explicitly·defines·them.·For·example,·in·the·following·example,·<code·class="inline">meter()</code>·and·<code·class="inline">foot()</code>·are·equivalent.·The·two·types·can·be·used·interchangeably.·Neither·of·them·differ·from·the·basic·type·<code·class="inline">integer()</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">type</span><span·class="w">·</span><span·class="nf">meter</span><span·class="p"·data-group-id=" | 146 | <ul><li><p><a·href="https://www.erlang.org/eeps/eep-0069">EEP-69:·Nominal·Types</a>·has·been·implemented.·As·a·side·effect,·nominal·types·can·encode·opaque·types.·We·changed·all·opaque-handling·logic·and·improved·opaque·warnings·in·Dialyzer.</p><p>All·existing·Erlang·type·systems·are·structural:·two·types·are·seen·as·equivalent·if·their·structures·are·the·same.·Type·comparisons·are·based·on·the·structures·of·the·types,·not·on·how·the·user·explicitly·defines·them.·For·example,·in·the·following·example,·<code·class="inline">meter()</code>·and·<code·class="inline">foot()</code>·are·equivalent.·The·two·types·can·be·used·interchangeably.·Neither·of·them·differ·from·the·basic·type·<code·class="inline">integer()</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">type</span><span·class="w">·</span><span·class="nf">meter</span><span·class="p"·data-group-id="7197950982-1">(</span><span·class="p"·data-group-id="7197950982-1">)</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="7197950982-2">(</span><[·...·truncated·by·diffoscope;·len:·40,·SHA:·dbbc8f7df8220a6999aef19f94211c07a53ce90e4ab07f36b0f252753eda6a72·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 147 | </span><span·class="p">-</span><span·class="na">type</span><span·class="w">·</span><span·class="nf">foot</span><span·class="p"·data-group-id=" | 147 | </span><span·class="p">-</span><span·class="na">type</span><span·class="w">·</span><span·class="nf">foot</span><span·class="p"·data-group-id="7197950982-3">(</span><span·class="p"·data-group-id="7197950982-3">)</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="7197950982-4">(</span><[·...·truncated·by·diffoscope;·len:·1061,·SHA:·94162f620687fdc26ecaa49b9a13f2c61e8c38c551b35ebf12302573a3a9a84c·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 148 | </span><span·class="p">-</span><span·class="na">nominal</span><span·class="w">·</span><span·class="nf">foot</span><span·class="p"·data-group-id=" | 148 | </span><span·class="p">-</span><span·class="na">nominal</span><span·class="w">·</span><span·class="nf">foot</span><span·class="p"·data-group-id="4459090907-3">(</span><span·class="p"·data-group-id="4459090907-3">)</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="4459090907-4">(</span><[·...·truncated·by·diffoscope;·len:·40,·SHA:·312bc59d78656960d6ba4bbb8812ca75af31fade5ce9e53aee6bcbf6859ec6d3·...·]-4">)</span><span·class="p">.</span></code></pre><p>More·nominal·type-checking·rules·can·be·found·in·the·EEP.·It·is·worth·noting·that·most·work·for·adding·nominal·types·and·type-checking·is·in·<code·class="inline">erl_types.erl</code>.·The·rest·are·changes·that·removed·the·previous·opaque·type-checking,·and·added·an·improved·version·of·it·using·nominal·type-checking·with·reworked·warnings.</p><p>Backwards·compatibility·for·opaque·type-checking·is·not·preserved·by·this·PR.·Previous·opaque·warnings·can·appear·with·slightly·different·wordings.·A·new·kind·of·opaque·warning·<code·class="inline">opaque_union</code>·is·added,·together·with·a·Dialyzer·option·<code·class="inline">no_opaque_union</code>·to·turn·this·kind·of·warnings·off.</p><p>Own·Id:·OTP-19364·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9079"·title="">PR-9079</a></p></li><li><p>Fixed·licenses·in·files·and·added·ORT·curations·to·the·following·apps:·otp,·eldap,·erl_interface,·eunit,·parsetools,·stdlib,·syntax_tools,·and·ERTS.</p><p>Own·Id:·OTP-19478·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9376"·title="">PR-9376</a>,·<a·href="https://github.com/erlang/otp/pull/9402"·title="">PR-9402</a>,·<a·href="https://github.com/erlang/otp/pull/9819"·title="">PR-9819</a></p></li><li><p>The·license·and·copyright·header·has·changed·format·to·include·an·<code·class="inline">SPDX-License-Identifier</code>.·At·the·same·time,·most·files·have·been·updated·to·follow·a·uniform·standard·for·license·headers.</p><p>Own·Id:·OTP-19575·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9670"·title="">PR-9670</a></p></li></ul><h2·id="eunit-2-9-1"·class="section-heading"> |
| 149 | ··<a·href="#eunit-2-9-1"·class="hover-link"> | 149 | ··<a·href="#eunit-2-9-1"·class="hover-link"> |
| 150 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 150 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 151 | ··</a> | 151 | ··</a> |
| 152 | ··<span·class="text">Eunit·2.9.1</span> | 152 | ··<span·class="text">Eunit·2.9.1</span> |
| 153 | </h2> | 153 | </h2> |
| 154 | <h3·id="improvements-and-new-features-1"·class="section-heading"> | 154 | <h3·id="improvements-and-new-features-1"·class="section-heading"> |
| 155 | ··<a·href="#improvements-and-new-features-1"·class="hover-link"> | 155 | ··<a·href="#improvements-and-new-features-1"·class="hover-link"> |
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| 789 | ······<p·class="built-using"> | 789 | ······<p·class="built-using"> |
| 790 | ········Built·using | 790 | ········Built·using |
| 791 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 791 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 792 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 792 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 793 | ······</p> | 793 | ······</p> |
| 794 | <p>Copyright·©·1996-202 | 794 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 795 | ····</footer> | 795 | ····</footer> |
| 796 | ··</div> | 796 | ··</div> |
| 797 | </main> | 797 | </main> |
| 798 | </div> | 798 | </div> |
| 799 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 799 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 800 | ··<script> | 800 | ··<script> |
| 801 | ··let·initialized·=·false; | 801 | ··let·initialized·=·false; |
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| 141 | ······<p·class="built-using"> | 141 | ······<p·class="built-using"> |
| 142 | ········Built·using | 142 | ········Built·using |
| 143 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 143 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 144 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 144 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 145 | ······</p> | 145 | ······</p> |
| 146 | <p>Copyright·©·1996-202 | 146 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 147 | ····</footer> | 147 | ····</footer> |
| 148 | ··</div> | 148 | ··</div> |
| 149 | </main> | 149 | </main> |
| 150 | </div> | 150 | </div> |
| 151 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 151 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 152 | ··<script> | 152 | ··<script> |
| 153 | ··let·initialized·=·false; | 153 | ··let·initialized·=·false; |
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| 143 | ······<p·class="built-using"> | 143 | ······<p·class="built-using"> |
| 144 | ········Built·using | 144 | ········Built·using |
| 145 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 145 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 146 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 146 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 147 | ······</p> | 147 | ······</p> |
| 148 | <p>Copyright·©·1996-202 | 148 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 149 | ····</footer> | 149 | ····</footer> |
| 150 | ··</div> | 150 | ··</div> |
| 151 | </main> | 151 | </main> |
| 152 | </div> | 152 | </div> |
| 153 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 153 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 154 | ··<script> | 154 | ··<script> |
| 155 | ··let·initialized·=·false; | 155 | ··let·initialized·=·false; |
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| 181 | ······<p·class="built-using"> | 181 | ······<p·class="built-using"> |
| 182 | ········Built·using | 182 | ········Built·using |
| 183 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 183 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 184 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 184 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 185 | ······</p> | 185 | ······</p> |
| 186 | <p>Copyright·©·1996-202 | 186 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 187 | ····</footer> | 187 | ····</footer> |
| 188 | ··</div> | 188 | ··</div> |
| 189 | </main> | 189 | </main> |
| 190 | </div> | 190 | </div> |
| 191 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 191 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 192 | ··<script> | 192 | ··<script> |
| 193 | ··let·initialized·=·false; | 193 | ··let·initialized·=·false; |
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| 1 | Zip·archive·data,·made·by·v6.1·UNIX,·extract·using·at·least·v1.0,·last·modified·Ju | 1 | Zip·archive·data,·made·by·v6.1·UNIX,·extract·using·at·least·v1.0,·last·modified·Jul·05·2026·23:54:50,·uncompressed·size·20,·method=store |
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| 1840 | ······<p·class="built-using"> | 1840 | ······<p·class="built-using"> |
| 1841 | ········Built·using | 1841 | ········Built·using |
| 1842 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1842 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1843 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1843 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1844 | ······</p> | 1844 | ······</p> |
| 1845 | <p>Copyright·©·1996-202 | 1845 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1846 | ····</footer> | 1846 | ····</footer> |
| 1847 | ··</div> | 1847 | ··</div> |
| 1848 | </main> | 1848 | </main> |
| 1849 | </div> | 1849 | </div> |
| 1850 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1850 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1851 | ··<script> | 1851 | ··<script> |
| 1852 | ··let·initialized·=·false; | 1852 | ··let·initialized·=·false; |
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| 122 | ······</a> | 122 | ······</a> |
| 123 | ····<span>Examples</span> | 123 | ····<span>Examples</span> |
| 124 | ··</h1> | 124 | ··</h1> |
| 125 | <p>The·following·is·a·simple·example·of·an·FTP·session,·where·the·user·<code·class="inline">guest</code>·with | 125 | <p>The·following·is·a·simple·example·of·an·FTP·session,·where·the·user·<code·class="inline">guest</code>·with |
| 126 | password·<code·class="inline">password</code>·logs·on·to·the·remote·host·<code·class="inline">erlang.org</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">······</span><span·class="mi">1</span><span·class="o">></span><span·class="w">·</span><span·class="nc">ftp</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id=" | 126 | password·<code·class="inline">password</code>·logs·on·to·the·remote·host·<code·class="inline">erlang.org</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">······</span><span·class="mi">1</span><span·class="o">></span><span·class="w">·</span><span·class="nc">ftp</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id="8771154634-1">(</span><span·class="p"·data-group-id="8771154634-1">)</span><span·class="p">.</span><span·class="w"> |
| 127 | ······</span><span·class="ss">ok</span><span·class="w"> | 127 | ······</span><span·class="ss">ok</span><span·class="w"> |
| 128 | ······</span><span·class="mi">2</span><span·class="o">></span><span·class="w">·</span><span·class="p"·data-group-id=" | 128 | ······</span><span·class="mi">2</span><span·class="o">></span><span·class="w">·</span><span·class="p"·data-group-id="8771154634-2">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Pid</span><span·class="p"·data-group-id="8771154634-2">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·cla[·...·truncated·by·diffoscope;·len:·497,·SHA:·d0b4f36ebca8d2da6e63d885740019e76540d6d823bc25e5692750d4697e6c49·...·]-3">)</span><span·class="p">.</span><span·class="w"> |
| 129 | ······</span><span·class="p"·data-group-id=" | 129 | ······</span><span·class="p"·data-group-id="8771154634-6">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="o"><</span><span·class="mf">0.22</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="p"·data-group-id="8771154634-6">}</span><span·class="w"> |
| 130 | ······</span><span·class="mi">3</span><span·class="o">></span><span·class="w">·</span><span·class="nc">ftp</span><span·class="p">:</span><span·class="nf">user</span><span·class="p"·data-group-id=" | 130 | ······</span><span·class="mi">3</span><span·class="o">></span><span·class="w">·</span><span·class="nc">ftp</span><span·class="p">:</span><span·class="nf">user</span><span·class="p"·data-group-id="8771154634-7">(</span><span·class="n">Pid</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"guest"</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"password"</span><span·class="p"·data-group-id[·...·truncated·by·diffoscope;·len:·12,·SHA:·f324c68f176c7a2c20c3a38f7db81b68f5278750c1c13baf7176654da8933201·...·]-7">)</span><span·class="p">.</span><span·class="w"> |
| 131 | ······</span><span·class="ss">ok</span><span·class="w"> | 131 | ······</span><span·class="ss">ok</span><span·class="w"> |
| 132 | ······</span><span·class="mi">4</span><span·class="o">></span><span·class="w">·</span><span·class="nc">ftp</span><span·class="p">:</span><span·class="nf">pwd</span><span·class="p"·data-group-id=" | 132 | ······</span><span·class="mi">4</span><span·class="o">></span><span·class="w">·</span><span·class="nc">ftp</span><span·class="p">:</span><span·class="nf">pwd</span><span·class="p"·data-group-id="8771154634-8">(</span><span·class="n">Pid</span><span·class="p"·data-group-id="8771154634-8">)</span><span·class="p">.</span><span·class="w"> |
| 133 | ······</span><span·class="p"·data-group-id=" | 133 | ······</span><span·class="p"·data-group-id="8771154634-9">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"/home/guest"</span><span·class="p"·data-group-id="8771154634-9">}</span><span·class="w"> |
| 134 | ······</span><span·class="mi">5</span><span·class="o">></span><span·class="w">·</span><span·class="nc">ftp</span><span·class="p">:</span><span·class="nf">cd</span><span·class="p"·data-group-id=" | 134 | ······</span><span·class="mi">5</span><span·class="o">></span><span·class="w">·</span><span·class="nc">ftp</span><span·class="p">:</span><span·class="nf">cd</span><span·class="p"·data-group-id="8771154634-10">(</span><span·class="n">Pid</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"appl/examples"</span><span·class="p"·data-group-id="8771154634-10">)</span><span·class="p">.</span><span·class="w"> |
| 135 | ······</span><span·class="ss">ok</span><span·class="w"> | 135 | ······</span><span·class="ss">ok</span><span·class="w"> |
| 136 | ······</span><span·class="mi">6</span><span·class="o">></span><span·class="w">·</span><span·class="nc">ftp</span><span·class="p">:</span><span·class="nf">lpwd</span><span·class="p"·data-group-id=" | 136 | ······</span><span·class="mi">6</span><span·class="o">></span><span·class="w">·</span><span·class="nc">ftp</span><span·class="p">:</span><span·class="nf">lpwd</span><span·class="p"·data-group-id="8771154634-11">(</span><span·class="n">Pid</span><span·class="p"·data-group-id="8771154634-11">)</span><span·class="p">.</span><span·class="w"> |
| 137 | ······</span><span·class="p"·data-group-id=" | 137 | ······</span><span·class="p"·data-group-id="8771154634-12">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"/home/fred"</span><span·class="p"·data-group-id="8771154634-12">}</span><span·class="p">.</span><span·class="w"> |
| 138 | ······</span><span·class="mi">7</span><span·class="o">></span><span·class="w">·</span><span·class="nc">ftp</span><span·class="p">:</span><span·class="nf">lcd</span><span·class="p"·data-group-id=" | 138 | ······</span><span·class="mi">7</span><span·class="o">></span><span·class="w">·</span><span·class="nc">ftp</span><span·class="p">:</span><span·class="nf">lcd</span><span·class="p"·data-group-id="8771154634-13">(</span><span·class="n">Pid</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"/home/eproj/examples"</span><span·class="p"·data-group-id="8771154634-13">)</span><span·class="p">.</span><span·class="w"> |
| 139 | ······</span><span·class="ss">ok</span><span·class="w"> | 139 | ······</span><span·class="ss">ok</span><span·class="w"> |
| 140 | ······</span><span·class="mi">8</span><span·class="o">></span><span·class="w">·</span><span·class="nc">ftp</span><span·class="p">:</span><span·class="nf">recv</span><span·class="p"·data-group-id=" | 140 | ······</span><span·class="mi">8</span><span·class="o">></span><span·class="w">·</span><span·class="nc">ftp</span><span·class="p">:</span><span·class="nf">recv</span><span·class="p"·data-group-id="8771154634-14">(</span><span·class="n">Pid</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"appl.erl"</span><span·class="p"·data-group-id="8771154634-14">)</span><span·class="p">.</span><span·class="w"> |
| 141 | ······</span><span·class="ss">ok</span><span·class="w"> | 141 | ······</span><span·class="ss">ok</span><span·class="w"> |
| 142 | ······</span><span·class="mi">9</span><span·class="o">></span><span·class="w">·</span><span·class="nc">ftp</span><span·class="p">:</span><span·class="nf">close</span><span·class="p"·data-group-id=" | 142 | ······</span><span·class="mi">9</span><span·class="o">></span><span·class="w">·</span><span·class="nc">ftp</span><span·class="p">:</span><span·class="nf">close</span><span·class="p"·data-group-id="8771154634-15">(</span><span·class="n">Pid</span><span·class="p"·data-group-id="8771154634-15">)</span><span·class="p">.</span><span·class="w"> |
| 143 | ······</span><span·class="ss">ok</span><span·class="w"> | 143 | ······</span><span·class="ss">ok</span><span·class="w"> |
| 144 | ······</span><span·class="mi">10</span><span·class="o">></span><span·class="w">·</span><span·class="nc">ftp</span><span·class="p">:</span><span·class="nf">stop</span><span·class="p"·data-group-id=" | 144 | ······</span><span·class="mi">10</span><span·class="o">></span><span·class="w">·</span><span·class="nc">ftp</span><span·class="p">:</span><span·class="nf">stop</span><span·class="p"·data-group-id="8771154634-16">(</span><span·class="p"·data-group-id="8771154634-16">)</span><span·class="p">.</span><span·class="w"> |
| 145 | ······</span><span·class="ss">ok</span></code></pre><p>The·file·<code·class="inline">appl.erl</code>·is·transferred·from·the·remote·to·the·local·host.·When·the | 145 | ······</span><span·class="ss">ok</span></code></pre><p>The·file·<code·class="inline">appl.erl</code>·is·transferred·from·the·remote·to·the·local·host.·When·the |
| 146 | session·is·opened,·the·current·directory·at·the·remote·host·is·<code·class="inline">/home/guest</code>, | 146 | session·is·opened,·the·current·directory·at·the·remote·host·is·<code·class="inline">/home/guest</code>, |
| 147 | and·<code·class="inline">/home/fred</code>·at·the·local·host.·Before·transferring·the·file,·the·current | 147 | and·<code·class="inline">/home/fred</code>·at·the·local·host.·Before·transferring·the·file,·the·current |
| 148 | local·directory·is·changed·to·<code·class="inline">/home/eproj/examples</code>,·and·the·remote·directory | 148 | local·directory·is·changed·to·<code·class="inline">/home/eproj/examples</code>,·and·the·remote·directory |
| 149 | is·set·to·<code·class="inline">/home/guest/appl/examples</code>.</p> | 149 | is·set·to·<code·class="inline">/home/guest/appl/examples</code>.</p> |
| 150 | </div> | 150 | </div> |
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| 187 | ······<p·class="built-using"> | 187 | ······<p·class="built-using"> |
| 188 | ········Built·using | 188 | ········Built·using |
| 189 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 189 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 190 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 190 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 191 | ······</p> | 191 | ······</p> |
| 192 | <p>Copyright·©·1996-202 | 192 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 193 | ····</footer> | 193 | ····</footer> |
| 194 | ··</div> | 194 | ··</div> |
| 195 | </main> | 195 | </main> |
| 196 | </div> | 196 | </div> |
| 197 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 197 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 198 | ··<script> | 198 | ··<script> |
| 199 | ··let·initialized·=·false; | 199 | ··let·initialized·=·false; |
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| 177 | ······<p·class="built-using"> | 177 | ······<p·class="built-using"> |
| 178 | ········Built·using | 178 | ········Built·using |
| 179 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 179 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 180 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 180 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 181 | ······</p> | 181 | ······</p> |
| 182 | <p>Copyright·©·1996-202 | 182 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 183 | ····</footer> | 183 | ····</footer> |
| 184 | ··</div> | 184 | ··</div> |
| 185 | </main> | 185 | </main> |
| 186 | </div> | 186 | </div> |
| 187 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 187 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 188 | ··<script> | 188 | ··<script> |
| 189 | ··let·initialized·=·false; | 189 | ··let·initialized·=·false; |
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| 464 | ······<p·class="built-using"> | 464 | ······<p·class="built-using"> |
| 465 | ········Built·using | 465 | ········Built·using |
| 466 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 466 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 467 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 467 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 468 | ······</p> | 468 | ······</p> |
| 469 | <p>Copyright·©·1996-202 | 469 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 470 | ····</footer> | 470 | ····</footer> |
| 471 | ··</div> | 471 | ··</div> |
| 472 | </main> | 472 | </main> |
| 473 | </div> | 473 | </div> |
| 474 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 474 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 475 | ··<script> | 475 | ··<script> |
| 476 | ··let·initialized·=·false; | 476 | ··let·initialized·=·false; |
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| 141 | ······<p·class="built-using"> | 141 | ······<p·class="built-using"> |
| 142 | ········Built·using | 142 | ········Built·using |
| 143 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 143 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 144 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 144 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 145 | ······</p> | 145 | ······</p> |
| 146 | <p>Copyright·©·1996-202 | 146 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 147 | ····</footer> | 147 | ····</footer> |
| 148 | ··</div> | 148 | ··</div> |
| 149 | </main> | 149 | </main> |
| 150 | </div> | 150 | </div> |
| 151 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 151 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 152 | ··<script> | 152 | ··<script> |
| 153 | ··let·initialized·=·false; | 153 | ··let·initialized·=·false; |
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| 143 | ······<p·class="built-using"> | 143 | ······<p·class="built-using"> |
| 144 | ········Built·using | 144 | ········Built·using |
| 145 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 145 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 146 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 146 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 147 | ······</p> | 147 | ······</p> |
| 148 | <p>Copyright·©·1996-202 | 148 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 149 | ····</footer> | 149 | ····</footer> |
| 150 | ··</div> | 150 | ··</div> |
| 151 | </main> | 151 | </main> |
| 152 | </div> | 152 | </div> |
| 153 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 153 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 154 | ··<script> | 154 | ··<script> |
| 155 | ··let·initialized·=·false; | 155 | ··let·initialized·=·false; |
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| 273 | ······<p·class="built-using"> | 273 | ······<p·class="built-using"> |
| 274 | ········Built·using | 274 | ········Built·using |
| 275 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 275 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 276 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 276 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 277 | ······</p> | 277 | ······</p> |
| 278 | <p>Copyright·©·1996-202 | 278 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 279 | ····</footer> | 279 | ····</footer> |
| 280 | ··</div> | 280 | ··</div> |
| 281 | </main> | 281 | </main> |
| 282 | </div> | 282 | </div> |
| 283 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 283 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 284 | ··<script> | 284 | ··<script> |
| 285 | ··let·initialized·=·false; | 285 | ··let·initialized·=·false; |
| Offset 134, 40 lines modified | Offset 134, 40 lines modified | ||
| 134 | <p>The·HTTP·client·default·profile·is·started·when·the·<code·class="inline">Inets</code>·application·is | 134 | <p>The·HTTP·client·default·profile·is·started·when·the·<code·class="inline">Inets</code>·application·is |
| 135 | started·and·is·then·available·to·all·processes·on·that·Erlang·node.·Other | 135 | started·and·is·then·available·to·all·processes·on·that·Erlang·node.·Other |
| 136 | profiles·can·also·be·started·at·application·startup,·or·profiles·can·be·started | 136 | profiles·can·also·be·started·at·application·startup,·or·profiles·can·be·started |
| 137 | and·stopped·dynamically·in·runtime.·Each·client·profile·spawns·a·new·process·to | 137 | and·stopped·dynamically·in·runtime.·Each·client·profile·spawns·a·new·process·to |
| 138 | handle·each·request,·unless·a·persistent·connection·can·be·used·with·or·without | 138 | handle·each·request,·unless·a·persistent·connection·can·be·used·with·or·without |
| 139 | pipelining.·The·client·adds·a·<code·class="inline">host</code>·header·and·an·empty·<code·class="inline">te</code>·header·if·there | 139 | pipelining.·The·client·adds·a·<code·class="inline">host</code>·header·and·an·empty·<code·class="inline">te</code>·header·if·there |
| 140 | are·no·such·headers·present·in·the·request.</p><p>The·client·supports·IPv6·as·long·as·the·underlying·mechanisms·also·do·so.</p><p>The·following·is·to·be·put·in·the·Erlang·node·application·configuration·file·to | 140 | are·no·such·headers·present·in·the·request.</p><p>The·client·supports·IPv6·as·long·as·the·underlying·mechanisms·also·do·so.</p><p>The·following·is·to·be·put·in·the·Erlang·node·application·configuration·file·to |
| 141 | start·a·profile·at·application·startup:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 141 | start·a·profile·at·application·startup:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="1091838064-1">[</span><span·class="p"·data-group-id="1091838064-2">{</span><span·class="ss">inets</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1091838064-3">[</span><span·class="p"·data-group-id="1091838064-4">{</spa[·...·truncated·by·diffoscope;·len:·606,·SHA:·31d1351fb880e38f3d719d6f8b2d6677abb9ee31e75e7abcc43de7dfd9ebf7e7·...·]-1">]</span></code></pre><p>For·valid·properties,·see·<a·href="httpc.html"><code·class="inline">httpc</code></a>.</p><h2·id="getting-started"·class="section-heading"> |
| 142 | ··<a·href="#getting-started"·class="hover-link"> | 142 | ··<a·href="#getting-started"·class="hover-link"> |
| 143 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 143 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 144 | ··</a> | 144 | ··</a> |
| 145 | ··<span·class="text">Getting·Started</span> | 145 | ··<span·class="text">Getting·Started</span> |
| 146 | </h2> | 146 | </h2> |
| 147 | <p>Start·<code·class="inline">Inets</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">inets</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id=" | 147 | <p>Start·<code·class="inline">Inets</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">inets</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id="1441044811-1">(</span><span·class="p"·data-group-id="1441044811-1">)</span><span·class="p">.</span><span·class="w"> |
| 148 | </span><span·class="ss">ok</span></code></pre><p>The·following·calls·use·the·default·client·profile.·Use·the·proxy | 148 | </span><span·class="ss">ok</span></code></pre><p>The·following·calls·use·the·default·client·profile.·Use·the·proxy |
| 149 | <code·class="inline">"www-proxy.mycompany.com:8000"</code>,·except·from·requests·to·localhost.·This | 149 | <code·class="inline">"www-proxy.mycompany.com:8000"</code>,·except·from·requests·to·localhost.·This |
| 150 | applies·to·all·the·following·requests.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">2>·</span><span·class="nc">httpc</span><span·class="p">:</span><span·class="nf">set_options</span><span·class="p"·data-group-id=" | 150 | applies·to·all·the·following·requests.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">2>·</span><span·class="nc">httpc</span><span·class="p">:</span><span·class="nf">set_options</span><span·class="p"·data-group-id="7673588275-1">(</span><span·class="p"·data-group-id="7673588275-2">[</span><span·class="p"·data-group-id="7673588275-3">{</span><span·class="ss">proxy</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="7673588275-4">{</spa[·...·truncated·by·diffoscope;·len:·230,·SHA:·eb2c9c7bcbe1b1f90b74a23d949cbee348c5f07f08e8ded24e3afcc7bf9afe2b·...·]-5">}</span><span·class="p">,</span><span·class="w"> |
| 151 | </span><span·class="p"·data-group-id="3927218571-6">[</span><span·class="s">"localhost"</span><span·class="p"·data-group-id="3927218571-6">]</span><span·class="p"·data-group-id="3927218571-4">}</span><span·class="p"·data-group-id="3927218571-3">}</span><span·class="p"·data-group-id="3927218571-2">]</span><span·class="p"·data-group-id="3927218571-1">)</span><span·class="p">.</span><span·class="w"> | ||
| 152 | </span><span·class="ss">ok</span></code></pre><p>The·following·is·an·ordinary·synchronous·request:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">3>·</span><span·class="p"·data-group-id="2489940079-1">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2489940079-2">{</span><span·class="p"·data-group-id="2489940079-3">{</span><span·class="n">Version</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">200</span><span·class="p">,</span><span·class="w">·</span><span·class="n">ReasonPhrase</span><span·class="p"·data-group-id="2489940079-3">}</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Headers</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Body</span><span·class="p"·data-group-id="2489940079-2">}</span><span·class="p"·data-group-id="2489940079-1">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w"> | ||
| 153 | </span><span·class="p" | 151 | </span><span·class="p"·data-group-id="7673588275-6">[</span><span·class="s">"localhost"</span><span·class="p"·data-group-id="7673588275-6">]</span><span·class="p"·data-group-id="7673588275-4">}</span><span·class="p"·data-group-id="7673588275-3">}</span><span·class="p"[·...·truncated·by·diffoscope;·len:·131,·SHA:·184de659577750684131c3749805ec877024babc3a0a331d7afddf680684d0b7·...·] |
| 152 | </span><span·class="ss">ok</span></code></pre><p>The·following·is·an·ordinary·synchronous·request:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">3>·</span><span·class="p"·data-group-id="6444701941-1">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6444701941-2">{</span><span·class="p"·data-group-id="6444701941-3">{</span><span·class="n">Version</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">200</span><span·class="p">,</span><span·class="w">·</span><span·class="n">ReasonPhrase</span><span·class="p"·data-group-id="6444701941-3">}</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Headers</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Body</span><span·class="p"·data-group-id="6444701941-2">}</span><span·class="p"·data-group-id="6444701941-1">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w"> | ||
| 153 | </span><span·class="p">.</span><span·class="p">.</span><span·class="w">·</span><span·class="nc">httpc</span><span·class="p">:</span><span·class="nf">request</span><span·class="p"·data-group-id="6444701941-4">(</span><span·class="nb">get</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6444701941-5">{</span><span·class="s">"http://www.erlang.org"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6444701941-6">[</span><span·class="p"·data-group-id="6444701941-6">]</span><span·class="p"·data-group-id="6444701941-5">}</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6444701941-7">[</span><span·class="p"·data-group-id="6444701941-7">]</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6444701941-8">[</span><span·class="p"·data-group-id="6444701941-8">]</span><span·class="p"·data-group-id="6444701941-4">)</span><span·class="p">.</span></code></pre><p>With·all·the·default·values·presented,·a·get·request·can·also·be·written·as | ||
| 154 | follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">4>·</span><span·class="p"·data-group-id="0 | 154 | follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">4>·</span><span·class="p"·data-group-id="0128020558-1">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0128020558-2">{</span><span·class="p"·data-group-id="0128020558-3">{</span><span·class="n">Version</span><span·class="p">,</span><[·...·truncated·by·diffoscope;·len:·433,·SHA:·a20ffdabc9f5e54265a4c8fa3c0ba9946a99182172efa47aa61a4804b4aaf9b3·...·]-1">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w"> |
| 155 | </span><span·class="p">.</span><span·class="p">.</span><span·class="w">·</span><span·class="nc">httpc</span><span·class="p">:</span><span·class="nf">request</span><span·class="p"·data-group-id="0859988459-4">(</span><span·class="s">"http://www.erlang.org"</span><span·class="p"·data-group-id="0859988459-4">)</span><span·class="p">.</span></code></pre><p>The·following·is·a·https·request·and·with·verification·of·the·host:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">5>·</span><span·class="p"·data-group-id="6421854359-1">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6421854359-2">{</span><span·class="p"·data-group-id="6421854359-3">{</span><span·class="n">Version</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">200</span><span·class="p">,</span><span·class="w">·</span><span·class="n">ReasonPhrase</span><span·class="p"·data-group-id="6421854359-3">}</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Headers</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Body</span><span·class="p"·data-group-id="6421854359-2">}</span><span·class="p"·data-group-id="6421854359-1">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w"> | ||
| 156 | </span><span·class="p">.</span><span·class="p">.</span><span·class="w">·</span><span·class="nc">httpc</span><span·class="p">:</span><span·class="nf">request</span><span·class="p"·data-group-id="6421854359-4">(</span><span·class="nb">get</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6421854359-5">{</span><span·class="s">"https://www.erlang.org"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6421854359-6">[</span><span·class="p"·data-group-id="6421854359-6">]</span><span·class="p"·data-group-id="6421854359-5">}</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6421854359-7">[</span><span·class="p"·data-group-id="6421854359-8">{</span><span·class="ss">ssl</span><span·class="p">,</span><span·class="w">·</span><span·class="nc">httpc</span><span·class="p">:</span><span·class="nf">ssl_verify_host_options</span><span·class="p"·data-group-id="6421854359-9">(</span><span·class="ss">true</span><span·class="p"·data-group-id="6421854359-9">)</span><span·class="p"·data-group-id="6421854359-8">}</span><span·class="p"·data-group-id="6421854359-7">]</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6421854359-10">[</span><span·class="p"·data-group-id="6421854359-10">]</span><span·class="p"·data-group-id="6421854359-4">)</span><span·class="p">.</span></code></pre><p>The·following·is·an·ordinary·asynchronous·request:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">6>·</span><span·class="p"·data-group-id="8060615909-1">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">RequestId</span><span·class="p"·data-group-id="8060615909-1">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w"> | ||
| 157 | </span><span·class="p">.</span><span·class="p">.</span><span·class="w">·</span><span·class="nc">httpc</span><span·class="p">:</span><span·class="nf">request</span><span·class="p"·data-group-id=" | 155 | </span><span·class="p">.</span><span·class="p">.</span><span·class="w">·</span><span·class="nc">httpc</span><span·class="p">:</span><span·class="nf">request</span><span·class="p"·data-group-id="0128020558-4">(</span><span·class="s">"http://www.erlang.org"</span><span·class="p"·data-group-id="0128020558-4">)</span><span·class="p">.</span></code></pre><p>The·following·is·a·https·request·and·with·verification·of·the·host:</p><pre><code·cla[·...·truncated·by·diffoscope;·len:·874,·SHA:·02337754a3835174f1c9367ea4fee14c961c2b8df09d067fcd07fddb2a5ca8da·...·] |
| 156 | </span><span·class="p">.</span><span·class="p">.</span><span·class="w">·</span><span·class="nc">httpc</span><span·class="p">:</span><span·class="nf">request</span><span·class="p"·data-group-id="8474264312-4">(</span><span·class="nb">get</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8474264312-5">{</span><span·class="s">"https://www.erlang.org"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8474264312-6">[</span><span·class="p"·data-group-id="8474264312-6">]</span><span·class="p"·data-group-id="8474264312-5">}</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8474264312-7">[</span><span·class="p"·data-group-id="8474264312-8">{</span><span·class="ss">ssl</span><span·class="p">,</span><span·class="w">·</span><span·class="nc">httpc</span><span·class="p">:</span><span·class="nf">ssl_verify_host_options</span><span·class="p"·data-group-id="8474264312-9">(</span><span·class="ss">true</span><span·class="p"·data-group-id="8474264312-9">)</span><span·class="p"·data-group-id="8474264312-8">}</span><span·class="p"·data-group-id="8474264312-7">]</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8474264312-10">[</span><span·class="p"·data-group-id="8474264312-10">]</span><span·class="p"·data-group-id="8474264312-4">)</span><span·class="p">.</span></code></pre><p>The·following·is·an·ordinary·asynchronous·request:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">6>·</span><span·class="p"·data-group-id="5101366900-1">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">RequestId</span><span·class="p"·data-group-id="5101366900-1">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w"> | ||
| 157 | </span><span·class="p">.</span><span·class="p">.</span><span·class="w">·</span><span·class="nc">httpc</span><span·class="p">:</span><span·class="nf">request</span><span·class="p"·data-group-id="5101366900-2">(</span><span·class="nb">get</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="5101366900-3">{</span><span·class="s">"http://www.erlang.org"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="5101366900-4">[</span><span·class="p"·data-group-id="5101366900-4">]</span><span·class="p"·data-group-id="5101366900-3">}</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="5101366900-5">[</span><span·class="p"·data-group-id="5101366900-5">]</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="5101366900-6">[</span><span·class="p"·data-group-id="5101366900-7">{</span><span·class="ss">sync</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">false</span><span·class="p"·data-group-id="5101366900-7">}</span><span·class="p"·data-group-id="5101366900-6">]</span><span·class="p"·data-group-id="5101366900-2">)</span><span·class="p">.</span></code></pre><p>The·result·is·sent·to·the·calling·process·as·<code·class="inline">{http,·{ReqestId,·Result}}</code>.</p><p>In·this·case,·the·calling·process·is·the·shell,·so·the·following·result·is | ||
| 158 | received:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">7>·</span><span·class="k">receive</span><span·class="w">·</span><span·class="p"·data-group-id=" | 158 | received:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">7>·</span><span·class="k">receive</span><span·class="w">·</span><span·class="p"·data-group-id="2391986582-1">{</span><span·class="ss">http</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2391986582-2">{</span><span·class="n">RequestId</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Result</s[·...·truncated·by·diffoscope;·len:·98,·SHA:·14a91e205a1c72ee3046232890e2353f7cfb541c7b7f4bb5c6ac92ab8b7c136c·...·]-1">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">ok</span><span·class="w">·</span><span·class="k">after</span><span·class="w">·</span><span·class="mi">500</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">error</span><span·class="w">·</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> |
| 159 | </span><span·class="ss">ok</span></code></pre><p>This·sends·a·request·with·a·specified·connection·header:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">8>·</span><span·class="p"·data-group-id=" | 159 | </span><span·class="ss">ok</span></code></pre><p>This·sends·a·request·with·a·specified·connection·header:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">8>·</span><span·class="p"·data-group-id="0377613680-1">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0377613680-2">{</span><span·class="p"·data-group-id="0377613680-3">{</span><span·class="n">NewVersion</span><span·class="p">,</sp[·...·truncated·by·diffoscope;·len:·446,·SHA:·419af63486def5fb717fa46394d49c8752cbe73ae72451bb072c5105ecb22566·...·]-1">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w"> |
| 160 | </span><span·class="p">.</span><span·class="p">.</span><span·class="w">·</span><span·class="nc">httpc</span><span·class="p">:</span><span·class="nf">request</span><span·class="p"·data-group-id=" | 160 | </span><span·class="p">.</span><span·class="p">.</span><span·class="w">·</span><span·class="nc">httpc</span><span·class="p">:</span><span·class="nf">request</span><span·class="p"·data-group-id="0377613680-4">(</span><span·class="nb">get</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0377613680-5">{</span><span·class="s">"http://www.erlang.org"</span><span·class="p">,</span><span·class="w">·</span><s[·...·truncated·by·diffoscope;·len:·384,·SHA:·7514cd4c78a073bccbcc3c37e04bd4a6b0672ae0a149061e156a97a382944b23·...·]-5">}</span><span·class="p">,</span><span·class="w"> |
| 161 | </span><span·class="p">.</span><span·class="p">.</span><span·class="w">·</span><span·class="p"·data-group-id=" | 161 | </span><span·class="p">.</span><span·class="p">.</span><span·class="w">·</span><span·class="p"·data-group-id="0377613680-8">[</span><span·class="p"·data-group-id="0377613680-8">]</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0377613680-9">[</span><span·class="p"·data-group-id="0377613680-9">]</span><span·class="p"·data-group-[·...·truncated·by·diffoscope;·len:·1013,·SHA:·3b1314fb1feca55d68dd9d1fd251c55886589a3dbf7f00b9b7a119fd396cdb4e·...·]-1">)</span><span·class="p">.</span><span·class="gp·unselectable"> |
| 162 | 10>·</span><span·class="p"·data-group-id=" | 162 | 10>·</span><span·class="p"·data-group-id="2549322959-5">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2549322959-6">{</span><span·class="p"·data-group-id="2549322959-7">{</span><span·class="n">NewVersion</span><span·class="p">,</sp[·...·truncated·by·diffoscope;·len:·446,·SHA:·33baf9c5a0815d2e7399995978b688d7b7c4be60e2cbe38ba6abcf5cb20dea7d·...·]-5">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w"> |
| 163 | ·</span><span·class="p">.</span><span·class="p">.</span><span·class="w">·</span><span·class="nc">httpc</span><span·class="p">:</span><span·class="nf">request</span><span·class="p"·data-group-id=" | 163 | ·</span><span·class="p">.</span><span·class="p">.</span><span·class="w">·</span><span·class="nc">httpc</span><span·class="p">:</span><span·class="nf">request</span><span·class="p"·data-group-id="2549322959-8">(</span><span·class="nb">put</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2549322959-9">{</span><span·class="s">"http:///v1/kv/foo"</span><span·class="p">,</span><span·class="w">·</span><span·[·...·truncated·by·diffoscope;·len:·1778,·SHA:·a85ae50a92c6d77edea62daf3300af1baac23188f30c777c3fd046dc156302e3·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 164 | </span><span·class="p"·data-group-id=" | 164 | </span><span·class="p"·data-group-id="9932812685-5">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="o"><</span><span·class="mf">0.45</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="p"·data-group-id[·...·truncated·by·diffoscope;·len:·513,·SHA:·027a6d91a73ae11e5425144e76e6ca6f992ffbc09af1798836b1a29143d93050·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 165 | </span><span·class="p"·data-group-id="92 | 165 | </span><span·class="p"·data-group-id="9724288347-2">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">econnrefused</span><span·class="p"·data-group-id="9724288347-2">}</span></code></pre><p>Stop·the·HTTP·client·profile:</p><pre><code·class="ma[·...·truncated·by·diffoscope;·len:·351,·SHA:·948f4ceea192c364e686a584cdb6c848cff388d63bcfe63a14228d95571cd9bc·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 166 | </span><span·class="ss">ok</span></code></pre><p>Alternative·way·to·stop·the·HTTP·client·profile:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">13>·</span><span·class="nc">inets</span><span·class="p">:</span><span·class="nf">stop</span><span·class="p"·data-group-id=" | 166 | </span><span·class="ss">ok</span></code></pre><p>Alternative·way·to·stop·the·HTTP·client·profile:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">13>·</span><span·class="nc">inets</span><span·class="p">:</span><span·class="nf">stop</span><span·class="p"·data-group-id="0787234455-1">(</span><span·class="ss">httpc</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Pid</span><span·class="p"·data-group-id="0787234455-1">)</span><span·class="p">.</span><span·class="w"> |
| 167 | </span><span·class="ss">ok</span></code></pre> | 167 | </span><span·class="ss">ok</span></code></pre> |
| 168 | </div> | 168 | </div> |
| 169 | <div·class="bottom-actions"·id="bottom-actions"> | 169 | <div·class="bottom-actions"·id="bottom-actions"> |
| 170 | ··<div·class="bottom-actions-item"> | 170 | ··<div·class="bottom-actions-item"> |
| 171 | ······<a·href="inets_services.html"·class="bottom-actions-button"·rel="prev"> | 171 | ······<a·href="inets_services.html"·class="bottom-actions-button"·rel="prev"> |
| Offset 211, 15 lines modified | Offset 211, 15 lines modified | ||
| 211 | ······<p·class="built-using"> | 211 | ······<p·class="built-using"> |
| 212 | ········Built·using | 212 | ········Built·using |
| 213 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 213 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 214 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 214 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 215 | ······</p> | 215 | ······</p> |
| 216 | <p>Copyright·©·1996-202 | 216 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 217 | ····</footer> | 217 | ····</footer> |
| 218 | ··</div> | 218 | ··</div> |
| 219 | </main> | 219 | </main> |
| 220 | </div> | 220 | </div> |
| 221 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 221 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 222 | ··<script> | 222 | ··<script> |
| 223 | ··let·initialized·=·false; | 223 | ··let·initialized·=·false; |
| Offset 137, 54 lines modified | Offset 137, 54 lines modified | ||
| 137 | underlying·mechanisms·also·do·so.</p><p>The·server·implements·numerous·features,·such·as:</p><ul><li>Secure·Sockets·Layer·(SSL)</li><li>Erlang·Scripting·Interface·(ESI)</li><li>Common·Gateway·Interface·(CGI)</li><li>User·Authentication·(using·Mnesia,·Dets·or·plain·text·database)</li><li>Common·Logfile·Format·(with·or·without·disk_log(3)·support)</li><li>URL·Aliasing</li><li>Action·Mappings</li><li>Directory·Listings</li></ul><p>The·configuration·of·the·server·is·provided·as·an·Erlang·property·list.</p><p>As·of·<code·class="inline">Inets</code>·5.0·the·HTTP·server·is·an·easy·to·start/stop·and·customize·web | 137 | underlying·mechanisms·also·do·so.</p><p>The·server·implements·numerous·features,·such·as:</p><ul><li>Secure·Sockets·Layer·(SSL)</li><li>Erlang·Scripting·Interface·(ESI)</li><li>Common·Gateway·Interface·(CGI)</li><li>User·Authentication·(using·Mnesia,·Dets·or·plain·text·database)</li><li>Common·Logfile·Format·(with·or·without·disk_log(3)·support)</li><li>URL·Aliasing</li><li>Action·Mappings</li><li>Directory·Listings</li></ul><p>The·configuration·of·the·server·is·provided·as·an·Erlang·property·list.</p><p>As·of·<code·class="inline">Inets</code>·5.0·the·HTTP·server·is·an·easy·to·start/stop·and·customize·web |
| 138 | server·providing·the·most·basic·web·server·functionality.·Inets·is·designed·for | 138 | server·providing·the·most·basic·web·server·functionality.·Inets·is·designed·for |
| 139 | embedded·systems·and·if·you·want·a·full-fledged·web·server·there·are·other | 139 | embedded·systems·and·if·you·want·a·full-fledged·web·server·there·are·other |
| 140 | erlang·open·source·alternatives.</p><p>Almost·all·server·functionality·has·been·implemented·using·an·especially·crafted | 140 | erlang·open·source·alternatives.</p><p>Almost·all·server·functionality·has·been·implemented·using·an·especially·crafted |
| 141 | server·API,·which·is·described·in·the·Erlang·Web·Server·API.·This·API·can·be | 141 | server·API,·which·is·described·in·the·Erlang·Web·Server·API.·This·API·can·be |
| 142 | used·to·enhance·the·core·server·functionality,·for·example·with·custom·logging | 142 | used·to·enhance·the·core·server·functionality,·for·example·with·custom·logging |
| 143 | and·authentication.</p><p>The·following·is·to·be·put·in·the·Erlang·node·application·configuration·file·to | 143 | and·authentication.</p><p>The·following·is·to·be·put·in·the·Erlang·node·application·configuration·file·to |
| 144 | start·an·HTTP·server·at·application·startup:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="6425746089-1">[</span><span·class="p"·data-group-id="6425746089-2">{</span><span·class="ss">inets</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6425746089-3">[</span><span·class="p"·data-group-id="6425746089-4">{</span><span·class="ss">services</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6425746089-5">[</span><span·class="p"·data-group-id="6425746089-6">{</span><span·class="ss">httpd</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6425746089-7">[</span><span·class="p"·data-group-id="6425746089-8">{</span><span·class="ss">proplist_file</span><span·class="p">,</span><span·class="w"> | ||
| 145 | 144 | start·an·HTTP·server·at·application·startup:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="7366866541-1">[</span><span·class="p"·data-group-id="7366866541-2">{</span><span·class="ss">inets</span><span·class="p">,</span><[·...·truncated·by·diffoscope;·len:·528,·SHA:·bea4eb335723dd95568922354145db6ceb0e3fe65bba1f279647dab222f9ed46·...·]</span><span·class="p">,</span><span·class="w"> | |
| 145 | ···········</span><span·class="s">"/var/tmp/server_root/conf/8888_props.conf"</span><span·class="p"·data-group-id="7366866541-8">}</span><span·class="p"·data-group-id="7366866541-7">]</span><span·class="p"·data-group-id="7366866541-6">}</span><span·class="p">,</span><span·class="w"> | ||
| 146 | ··········</span><span·class="p"·data-group-id=" | 146 | ··········</span><span·class="p"·data-group-id="7366866541-9">{</span><span·class="ss">httpd</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="7366866541-10">[</span><span·class="p"·data-group-id="7366866541-11">{</span><span·class="ss">proplist_file</span><span·class="p">,</span><span·class="w"> |
| 147 | ···········</span><span·class="s">"/var/tmp/server_root/conf/8080_props.conf"</span><span·class="p"·data-group-id="6425746089-11">}</span><span·class="p"·data-group-id="6425746089-10">]</span><span·class="p"·data-group-id="6425746089-9">}</span><span·class="p"·data-group-id="6425746089-5">]</span><span·class="p"·data-group-id="6425746089-4">}</span><span·class="p"·data-group-id="6425746089-3">]</span><span·class="p"·data-group-id="6425746089-2">}</span><span·class="p"·data-group-id="6425746089-1">]</span><span·class="p">.</span></code></pre><p>The·server·is·configured·using·an·Erlang·property·list.·For·the·available | ||
| 148 | properties,·see·<a·href="httpd.html"><code·class="inline">httpd</code></a>.</p><p>The·available·configuration·properties·are·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">httpd_service</span><span·class="p"·data-group-id="5213360390-1">(</span><span·class="p"·data-group-id="5213360390-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="p"·data-group-id="5213360390-2">{</span><span·class="ss">httpd</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">httpd</span><span·class="p"·data-group-id="5213360390-3">(</span><span·class="p"·data-group-id="5213360390-3">)</span><span·class="p"·data-group-id="5213360390-2">}</span><span·class="w"> | ||
| 149 | </span><span·class="nf">httpd</span><span·class="p"·data-group-id="5213360390-4">(</span><span·class="p"·data-group-id="5213360390-4">)</span><span·class="w">·········</span><span·class="p">-></span><span·class="w">·</span><span·class="p"·data-group-id="5213360390-5">[</span><span·class="nf">httpd_config</span><span·class="p"·data-group-id="5213360390-6">(</span><span·class="p"·data-group-id="5213360390-6">)</span><span·class="p"·data-group-id="5213360390-5">]</span><span·class="w"> | ||
| 150 | </span><span·class=" | 147 | ···········</span><span·class="s">"/var/tmp/server_root/conf/8080_props.conf"</span><span·class="p"·data-group-id="7366866541-11">}</span><span·class="p"·data-group-id="7366866541-10">]</span><span·class="p"·data-group-id="7366866541-9">}</span><[·...·truncated·by·diffoscope;·len:·377,·SHA:·54b6af0eb39216a163a1d087dffbdcf5654c20f122923fbcbef1ce015ecb8e87·...·] |
| 148 | properties,·see·<a·href="httpd.html"><code·class="inline">httpd</code></a>.</p><p>The·available·configuration·properties·are·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">httpd_service</span><span·class="p"·data-group-id="5880947935-1">(</span><span·class="p"·data-group-id="5880947935-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="p"·data-group-id="5880947935-2">{</span><span·class="ss">httpd</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">httpd</span><span·class="p"·data-group-id="5880947935-3">(</span><span·class="p"·data-group-id="5880947935-3">)</span><span·class="p"·data-group-id="5880947935-2">}</span><span·class="w"> | ||
| 149 | </span><span·class="nf">httpd</span><span·class="p"·data-group-id="5880947935-4">(</span><span·class="p"·data-group-id="5880947935-4">)</span><span·class="w">·········</span><span·class="p">-></span><span·class="w">·</span><span·class="p"·data-group-id="5880947935-5">[</span><span·class="nf">httpd_config</span><span·class="p"·data-group-id="5880947935-6">(</span><span·class="p"·data-group-id="5880947935-6">)</span><span·class="p"·data-group-id="5880947935-5">]</span><span·class="w"> | ||
| 150 | </span><span·class="nf">httpd_config</span><span·class="p"·data-group-id="5880947935-7">(</span><span·class="p"·data-group-id="5880947935-7">)</span><span·class="w">··</span><span·class="p">-></span><span·class="w">·</span><span·class="p"·data-group-id="5880947935-8">{</span><span·class="ss">proplist_file</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">file</span><span·class="p"·data-group-id="5880947935-9">(</span><span·class="p"·data-group-id="5880947935-9">)</span><span·class="p"·data-group-id="5880947935-8">}</span><span·class="w"> | ||
| 151 | ···················</span><span·class="p"·data-group-id="5 | 151 | ···················</span><span·class="p"·data-group-id="5880947935-10">{</span><span·class="ss">debug</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">debug</span><span·class="p"·data-group-id="5880947935-11">(</span><span·class="p"·data-group-id="5880947935-11">)</span><span·class="p"·data[·...·truncated·by·diffoscope;·len:·21,·SHA:·975da74dda3a48a5817bdad5f011917d3a37a692b4653f7fd4c09c9e0f03c979·...·]-10">}</span><span·class="w">·</span><span·class="p">|</span><span·class="w"> |
| 152 | ···················</span><span·class="p"·data-group-id="5213360390-12">{</span><span·class="ss">accept_timeout</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="5213360390-13">(</span><span·class="p"·data-group-id="5213360390-13">)</span><span·class="p"·data-group-id="5213360390-12">}</span><span·class="w"> | ||
| 153 | </span><span·class="nf">debug</span><span·class="p"·data-group-id="5213360390-14">(</span><span·class="p"·data-group-id="5213360390-14">)</span><span·class="w">·········</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">disable</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id="5213360390-15">[</span><span·class="nf">debug_options</span><span·class="p"·data-group-id="5213360390-16">(</span><span·class="p"·data-group-id="5213360390-16">)</span><span·class="p"·data-group-id="5213360390-15">]</span><span·class="w"> | ||
| 154 | </span><span·class="nf">debug_options</span><span·class="p"·data-group-id="5213360390-17">(</span><span·class="p"·data-group-id="5213360390-17">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="p"·data-group-id="5213360390-18">{</span><span·class="ss">all_functions</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">modules</span><span·class="p"·data-group-id="5213360390-19">(</span><span·class="p"·data-group-id="5213360390-19">)</span><span·class="p"·data-group-id="5213360390-18">}</span><span·class="w">·</span><span·class="p">|</span><span·class="w"> | ||
| 155 | ···················</span><span·class="p"·data-group-id="5 | 152 | ···················</span><span·class="p"·data-group-id="5880947935-12">{</span><span·class="ss">accept_timeout</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="5880947935-13">(</span><span·class="p"·data-group-id="5880947935-13">)</span><span·cla[·...·truncated·by·diffoscope;·len:·38,·SHA:·a25fff57d2a17f4ce344f160b9c2400c7dca144be681ce8c4e3585b44ae13d7c·...·]</span><span·class="w"> |
| 153 | </span><span·class="nf">debug</span><span·class="p"·data-group-id="5880947935-14">(</span><span·class="p"·data-group-id="5880947935-14">)</span><span·class="w">·········</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">disable</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id="5880947935-15">[</span><span·class="nf">debug_options</span><span·class="p"·data-group-id="5880947935-16">(</span><span·class="p"·data-group-id="5880947935-16">)</span><span·class="p"·data-group-id="5880947935-15">]</span><span·class="w"> | ||
| 154 | </span><span·class="nf">debug_options</span><span·class="p"·data-group-id="5880947935-17">(</span><span·class="p"·data-group-id="5880947935-17">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="p"·data-group-id="5880947935-18">{</span><span·class="ss">all_functions</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">modules</span><span·class="p"·data-group-id="5880947935-19">(</span><span·class="p"·data-group-id="5880947935-19">)</span><span·class="p"·data-group-id="5880947935-18">}</span><span·class="w">·</span><span·class="p">|</span><span·class="w"> | ||
| 155 | ···················</span><span·class="p"·data-group-id="5880947935-20">{</span><span·class="ss">exported_functions</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">modules</span><span·class="p"·data-group-id="5880947935-21">(</span><span·class="p"·data-group-id="5880947935-21">)</span><span·class="p"·data-group-id="5880947935-20">}</span><span·class="w">·</span><span·class="p">|</span><span·class="w"> | ||
| 156 | ···················</span><span·class="p"·data-group-id="5 | 156 | ···················</span><span·class="p"·data-group-id="5880947935-22">{</span><span·class="ss">disable</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">modules</span><span·class="p"·data-group-id="5880947935-23">(</span><span·class="p"·data-group-id="5880947935-23">)</span><span·class="p"·[·...·truncated·by·diffoscope;·len:·25,·SHA:·fa609bc4003866269096039f8e3527d9a4a5aebcb6e464f63198850a284a2737·...·]-22">}</span><span·class="w"> |
| 157 | </span><span·class="nf">modules</span><span·class="p"·data-group-id="5 | 157 | </span><span·class="nf">modules</span><span·class="p"·data-group-id="5880947935-24">(</span><span·class="p"·data-group-id="5880947935-24">)</span><span·class="w">·······</span><span·class="p">-></span><span·class="w">·</span><span·class="p"·data-group-id="5880947935-25">[</span><span·class="nf">atom</span><span·class="p"·[·...·truncated·by·diffoscope;·len:·133,·SHA:·cfa0e7e67b9cbdf34da19c7a7f257c68ee9d27be041f40e380089220402ff23f·...·]-25">]</span></code></pre><p>Here:</p><ul><li><p><strong><code·class="inline">{proplist_file,·file()}</code></strong>·-·File·containing·an·Erlang·property·list, |
| 158 | followed·by·a·full·stop,·describing·the·HTTP·server·configuration.</p></li><li><p><strong><code·class="inline">{debug,·debug()}</code></strong>·-·Can·enable·trace·on·all·functions·or·only·exported | 158 | followed·by·a·full·stop,·describing·the·HTTP·server·configuration.</p></li><li><p><strong><code·class="inline">{debug,·debug()}</code></strong>·-·Can·enable·trace·on·all·functions·or·only·exported |
| 159 | functions·on·chosen·modules.</p></li><li><p><strong><code·class="inline">{accept_timeout,·integer()}</code></strong>·-·Sets·the·wanted·time-out·value·for·the | 159 | functions·on·chosen·modules.</p></li><li><p><strong><code·class="inline">{accept_timeout,·integer()}</code></strong>·-·Sets·the·wanted·time-out·value·for·the |
| 160 | server·to·set·up·a·request·connection.</p></li></ul><h2·id="getting-started"·class="section-heading"> | 160 | server·to·set·up·a·request·connection.</p></li></ul><h2·id="getting-started"·class="section-heading"> |
| 161 | ··<a·href="#getting-started"·class="hover-link"> | 161 | ··<a·href="#getting-started"·class="hover-link"> |
| 162 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 162 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 163 | ··</a> | 163 | ··</a> |
| 164 | ··<span·class="text">Getting·Started</span> | 164 | ··<span·class="text">Getting·Started</span> |
| 165 | </h2> | 165 | </h2> |
| 166 | <p><a·href=""·id="using_http_server_api"></a></p><p>Start·<code·class="inline">Inets</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">inets</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id=" | 166 | <p><a·href=""·id="using_http_server_api"></a></p><p>Start·<code·class="inline">Inets</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">inets</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id="7990457308-1">(</span><span·class="p"·data-group-id="7990457308-1">)</span><span·class="p">.</span><span·class="w"> |
| 167 | </span><span·class="ss">ok</span></code></pre><p>Start·an·HTTP·server·with·minimal·required·configuration.·If·you·specify·port | 167 | </span><span·class="ss">ok</span></code></pre><p>Start·an·HTTP·server·with·minimal·required·configuration.·If·you·specify·port |
| 168 | <code·class="inline">0</code>,·an·arbitrary·available·port·is·used,·and·you·can·use·function·<code·class="inline">info</code>·to | 168 | <code·class="inline">0</code>,·an·arbitrary·available·port·is·used,·and·you·can·use·function·<code·class="inline">info</code>·to |
| 169 | find·which·port·number·that·was·picked:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">2>·</span><span·class="p"·data-group-id=" | 169 | find·which·port·number·that·was·picked:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">2>·</span><span·class="p"·data-group-id="6810087766-1">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Pid</span><span·class="p"·data-group-id="6810087766-1">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·cla[·...·truncated·by·diffoscope;·len:·703,·SHA:·4afb55877eb8f16263ba19f2c9f1ae63423b5958fdc67746982ea099e6599293·...·]-5">}</span><span·class="p">,</span><span·class="w"> |
| 170 | </span><span·class="p">.</span><span·class="p">.</span><span·class="w">·</span><span·class="p"·data-group-id=" | 170 | </span><span·class="p">.</span><span·class="p">.</span><span·class="w">·</span><span·class="p"·data-group-id="6810087766-6">{</span><span·class="ss">document_root</span><span·class="p">,</span><span·class="s">"/tmp/htdocs"</span><span·class="p"·data-group-id="6810087766-6">}</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group[·...·truncated·by·diffoscope;·len:·302,·SHA:·5327f9d9e1fb83de0fecbb2ec9e6ccb35b37f64400d9d4f376588f948cc5b00f·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 171 | </span><span·class="p"·data-group-id=" | 171 | </span><span·class="p"·data-group-id="6810087766-8">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="mf">0.79</span><span·class="p">.</span><span·class="mi">0</span><span·class="p"·data-group-id="6810087766-8">}</span></code></pre><p>Call·<code·cla[·...·truncated·by·diffoscope;·len:·320,·SHA:·23944ead92d7b4fbd45d1986f2732f5951119975511202ec4295f4dc8f8fa4ad·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 172 | </span><span·class="p"·data-group-id="9755 | 172 | </span><span·class="p"·data-group-id="4039755416-2">[</span><span·class="p"·data-group-id="4039755416-3">{</span><span·class="ss">mime_types</span><span·class="p">,</span><span·class="p"·data-group-id="4039755416-4">[</span><span·class="p"·data-group-id="4039755416-5">{</span><span·class="s">&[·...·truncated·by·diffoscope;·len:·473,·SHA:·5ae27b740c189191df54053e589ee67462adbc1f52601f3fa97447d0c7542143·...·]-3">}</span><span·class="p">,</span><span·class="w"> |
| 173 | ·</span><span·class="p"·data-group-id="9755 | 173 | ·</span><span·class="p"·data-group-id="4039755416-7">{</span><span·class="ss">server_name</span><span·class="p">,</span><span·class="s">"machine.local"</span><span·class="p"·data-group-id="4039755416-7">}</span><span·class="p">,</span><span·class="w"> |
| 174 | ·</span><span·class="p"·data-group-id="9755 | 174 | ·</span><span·class="p"·data-group-id="4039755416-8">{</span><span·class="ss">bind_address</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4039755416-9">{</span><span·class="mi">127</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</sp[·...·truncated·by·diffoscope;·len:·171,·SHA:·a524878f5b2db483fdc438c95a379a338ffed204268e6f0a68b10ba6f74d4c28·...·]-8">}</span><span·class="p">,</span><span·class="w"> |
| 175 | ·</span><span·class="p"·data-group-id="9755 | 175 | ·</span><span·class="p"·data-group-id="4039755416-10">{</span><span·class="ss">server_root</span><span·class="p">,</span><span·class="s">"/tmp"</span><span·class="p"·data-group-id="4039755416-10">}</span><span·class="p">,</span><span·class="w"> |
| 176 | ·</span><span·class="p"·data-group-id="9755 | 176 | ·</span><span·class="p"·data-group-id="4039755416-11">{</span><span·class="ss">port</span><span·class="p">,</span><span·class="mi">59408</span><span·class="p"·data-group-id="4039755416-11">}</span><span·class="p">,</span><span·class="w"> |
| 177 | ·</span><span·class="p"·data-group-id="9755 | 177 | ·</span><span·class="p"·data-group-id="4039755416-12">{</span><span·class="ss">document_root</span><span·class="p">,</span><span·class="s">"/tmp/htdocs"</span><span·class="p"·data-group-id="4039755416-12">}</span><span·class="p">,</span><span·class="w"> |
| 178 | ·</span><span·class="p"·data-group-id="9755 | 178 | ·</span><span·class="p"·data-group-id="4039755416-13">{</span><span·class="ss">ipfamily</span><span·class="p">,</span><span·class="ss">inet</span><span·class="p"·data-group-id="4039755416-13">}</span><span·class="p"·data-group-id="4039755416-2">]</span></code></pre><p>Reload·the·configuration·w[·...·truncated·by·diffoscope;·len:·519,·SHA:·c05133825012519be3a07c11fffbc61649298e09da4366bcd48b7bf6c346e8a0·...·]-3">}</span><span·class="p">,</span><span·class="w"> |
| 179 | </span><span·class="p">.</span><span·class="p">.</span><span·class="w">·</span><span·class="p"·data-group-id=" | 179 | </span><span·class="p">.</span><span·class="p">.</span><span·class="w">·</span><span·class="p"·data-group-id="0043354311-4">{</span><span·class="ss">server_root</span><span·class="p">,</span><span·class="s">"/tmp/www_test"</span><span·class="p"·data-group-id="0043354311-4">}</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group[·...·truncated·by·diffoscope;·len:·184,·SHA:·2baac0ff36b36471f7b1676aa1d032abe378402a7fe78aa9cbbe08497fb81d94·...·]-5">}</span><span·class="p">,</span><span·class="w"> |
| 180 | </span><span·class="p">.</span><span·class="p">.</span><span·class="w">·</span><span·class="p"·data-group-id=" | 180 | </span><span·class="p">.</span><span·class="p">.</span><span·class="w">·</span><span·class="p"·data-group-id="0043354311-6">{</span><span·class="ss">bind_address</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"localhost"</span><span·class="p"·data-group-id="0043354311-6">}</span><span·class="p"·data-group-id="0043354311-2">]</span>[·...·truncated·by·diffoscope;·len:·127,·SHA:·a01ff557406eba8bf31af791fa611661c372425198ddf0684c34cf44723578aa·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 181 | </span><span·class="ss">ok</span><span·class="p">.</span></code></pre><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p><code·class="inline">port</code>·and·<code·class="inline">bind_address</code>·cannot·be·changed.·Clients·trying·to·access·the | 181 | </span><span·class="ss">ok</span><span·class="p">.</span></code></pre><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p><code·class="inline">port</code>·and·<code·class="inline">bind_address</code>·cannot·be·changed.·Clients·trying·to·access·the |
| 182 | server·during·the·reload·get·a·service·temporary·unavailable·answer.</p></section><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">5>·</span><span·class="nc">httpd</span><span·class="p">:</span><span·class="nf">info</span><span·class="p"·data-group-id="0623730564-1">(</span><span·class="n">Pid</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0623730564-2">[</span><span·class="ss">server_root</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">document_root</span><span·class="p"·data-group-id="0623730564-2">]</span><span·class="p"·data-group-id="0623730564-1">)</span><span·class="p">.</span><span·class="w"> | ||
| 183 | 182 | server·during·the·reload·get·a·service·temporary·unavailable·answer.</p></section><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">5>·</span><span·class="nc">httpd</span><span·class="p">:</span><span·class="nf">info</span><s[·...·truncated·by·diffoscope;·len:·443,·SHA:·108f028e216e26065c23137a145bed6495174f05d522847fb0165b645cb95fe7·...·]> | |
| 183 | </span><span·class="p"·data-group-id="7896005299-3">[</span><span·class="p"·data-group-id="7896005299-4">{</span><span·class="ss">server_root</span><span·class="p">,</span><span·class="s">"/tmp/www_test"</span><span·class="p"·data-group-id="7896005299-4">}</span><span·class="p">,</span><span·class="p"·data-group-id="7896005299-5">{</span><span·class="ss">document_root</span><span·class="p">,</span><span·class="s">"/tmp/www_test/htdocs"</span><span·class="p"·data-group-id="7896005299-5">}</span><span·class="p"·data-group-id="7896005299-3">]</span></code></pre><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">6>·</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">inets</span><span·class="p">:</span><span·class="nf">stop</span><span·class="p"·data-group-id="4537901307-1">(</span><span·class="ss">httpd</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Pid</span><span·class="p"·data-group-id="4537901307-1">)</span><span·class="p">.</span></code></pre><p>Alternative:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">6>·</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">inets</span><span·class="p">:</span><span·class="nf">stop</span><span·class="p"·data-group-id="0109759309-1">(</span><span·class="ss">httpd</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0109759309-2">{</span><span·class="p"·data-group-id="0109759309-3">{</span><span·class="mi">127</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">1</span><span·class="p"·data-group-id="0109759309-3">}</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">59408</span><span·class="p"·data-group-id="0109759309-2">}</span><span·class="p"·data-group-id="0109759309-1">)</span><span·class="p">.</span></code></pre><p>Notice·that·<code·class="inline">bind_address</code>·must·be·the·IP·address·reported·by·function·<code·class="inline">info</code> | ||
| 184 | and·cannot·be·the·hostname·that·is·allowed·when·putting·in·<code·class="inline">bind_address</code>.</p><h2·id="dynamic-web-pages"·class="section-heading"> | 184 | and·cannot·be·the·hostname·that·is·allowed·when·putting·in·<code·class="inline">bind_address</code>.</p><h2·id="dynamic-web-pages"·class="section-heading"> |
| 185 | ··<a·href="#dynamic-web-pages"·class="hover-link"> | 185 | ··<a·href="#dynamic-web-pages"·class="hover-link"> |
| 186 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 186 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 187 | ··</a> | 187 | ··</a> |
| 188 | ··<span·class="text">Dynamic·Web·Pages</span> | 188 | ··<span·class="text">Dynamic·Web·Pages</span> |
| 189 | </h2> | 189 | </h2> |
| 190 | <p><a·href=""·id="dynamic_we_pages"></a></p><p><code·class="inline">Inets</code>·HTTP·server·provides·two·ways·of·creating·dynamic·web·pages,·each·with | 190 | <p><a·href=""·id="dynamic_we_pages"></a></p><p><code·class="inline">Inets</code>·HTTP·server·provides·two·ways·of·creating·dynamic·web·pages,·each·with |
| Offset 301, 36 lines modified | Offset 301, 36 lines modified | ||
| 301 | files,·Dets·databases·as·well·as·Mnesia·databases.</p><p>Uses·the·following·Erlang·Web·Server·API·interaction·data:</p><ul><li><code·class="inline">real_name</code>·-·from·<a·href="mod_alias.html"><code·class="inline">mod_alias</code></a></li></ul><p>Exports·the·following·Erlang·Web·Server·API·interaction·data:</p><ul><li><strong><code·class="inline">{remote_user,·User}</code></strong>·-·The·username·used·for·authentication.</li></ul><h4>Mnesia·As·Authentication·Database</h4><p>If·Mnesia·is·used·as·storage·method,·Mnesia·must·be·started·before·the·HTTP | 301 | files,·Dets·databases·as·well·as·Mnesia·databases.</p><p>Uses·the·following·Erlang·Web·Server·API·interaction·data:</p><ul><li><code·class="inline">real_name</code>·-·from·<a·href="mod_alias.html"><code·class="inline">mod_alias</code></a></li></ul><p>Exports·the·following·Erlang·Web·Server·API·interaction·data:</p><ul><li><strong><code·class="inline">{remote_user,·User}</code></strong>·-·The·username·used·for·authentication.</li></ul><h4>Mnesia·As·Authentication·Database</h4><p>If·Mnesia·is·used·as·storage·method,·Mnesia·must·be·started·before·the·HTTP |
| 302 | server.·The·first·time·Mnesia·is·started,·the·schema·and·the·tables·must·be | 302 | server.·The·first·time·Mnesia·is·started,·the·schema·and·the·tables·must·be |
| 303 | created·before·Mnesia·is·started.·A·simple·example·of·a·module·with·two | 303 | created·before·Mnesia·is·started.·A·simple·example·of·a·module·with·two |
| 304 | functions·that·creates·and·start·Mnesia·is·provided·here.·Function | 304 | functions·that·creates·and·start·Mnesia·is·provided·here.·Function |
| 305 | <code·class="inline">first_start/0</code>·is·to·be·used·the·first·time.·It·creates·the·schema·and·the | 305 | <code·class="inline">first_start/0</code>·is·to·be·used·the·first·time.·It·creates·the·schema·and·the |
| 306 | tables.·<code·class="inline">start/0</code>·is·to·be·used·in·consecutive·startups.·<code·class="inline">start/0</code>·starts·Mnesia | 306 | tables.·<code·class="inline">start/0</code>·is·to·be·used·in·consecutive·startups.·<code·class="inline">start/0</code>·starts·Mnesia |
| 307 | and·waits·for·the·tables·to·be·initiated.·This·function·must·only·be·used·when | 307 | and·waits·for·the·tables·to·be·initiated.·This·function·must·only·be·used·when |
| 308 | the·schema·and·the·tables·are·already·created.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="5042682161-1">(</span><span·class="ss">mnesia_test</span><span·class="p"·data-group-id="5042682161-1">)</span><span·class="p">.</span><span·class="w"> | ||
| 309 | 308 | the·schema·and·the·tables·are·already·created.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="1083494766-1">(</span><span·class="ss">mnesia_test</span><span·class="p"·[·...·truncated·by·diffoscope;·len:·27,·SHA:·3dcfc014c5f6bec85cf542d221011bdca229301d5b9c0f6ec1773a28e741f28c·...·]">)</span><span·class="p">.</span><span·class="w"> | |
| 309 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="1083494766-2">(</span><span·class="p"·data-group-id="1083494766-3">[</span><span·class="ss">start</span><span·class="p">/</span><span·class="mi">0</span><span·class="p">,</span><span·class="ss">load_data</span><span·class="p">/</span><span·class="mi">0</span><span·class="p"·data-group-id="1083494766-3">]</span><span·class="p"·data-group-id="1083494766-2">)</span><span·class="p">.</span><span·class="w"> | ||
| 310 | </span><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id=" | 310 | </span><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id="1083494766-4">(</span><span·class="s">"mod_auth.hrl"</span><span·class="p"·data-group-id="1083494766-4">)</span><span·class="p">.</span><span·class="w"> |
| 311 | </span><span·class="nf">first_start</span><span·class="p"·data-group-id=" | 311 | </span><span·class="nf">first_start</span><span·class="p"·data-group-id="1083494766-5">(</span><span·class="p"·data-group-id="1083494766-5">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 312 | ····</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">create_schema</span><span·class="p"·data-group-id=" | 312 | ····</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">create_schema</span><span·class="p"·data-group-id="1083494766-6">(</span><span·class="p"·data-group-id="1083494766-7">[</span><span·class="nf">node</span><span·class="p"·data-group-id="1083494766-8">(</span><span·class="p"·data-group-id="1083494766-8">)</span><span·class="p"·data-group-id="1083494766-7">]<[·...·truncated·by·diffoscope;·len:·47,·SHA:·8ccdc6ee4a6dbec546a5b20eb8ff575e2c1b8a042f3da11736054e4934484b4a·...·]-6">)</span><span·class="p">,</span><span·class="w"> |
| 313 | ····</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id=" | 313 | ····</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id="1083494766-9">(</span><span·class="p"·data-group-id="1083494766-9">)</span><span·class="p">,</span><span·class="w"> |
| 314 | ····</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">create_table</span><span·class="p"·data-group-id=" | 314 | ····</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">create_table</span><span·class="p"·data-group-id="1083494766-10">(</span><span·class="ss">httpd_user</span><span·class="p">,</span><span·class="w"> |
| 315 | ························</span><span·class="p"·data-group-id=" | 315 | ························</span><span·class="p"·data-group-id="1083494766-11">[</span><span·class="p"·data-group-id="1083494766-12">{</span><span·class="ss">type</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">bag</span><span·class="p"·data-group-id="1083494766-12">}</span><span·class="p">,</span><span·class="w"> |
| 316 | ·························</span><span·class="p"·data-group-id=" | 316 | ·························</span><span·class="p"·data-group-id="1083494766-13">{</span><span·class="ss">disc_copies</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1083494766-14">[</span><span·class="nf">node</span><span·class="p"·data-group-id="1083494766-15">(</span><span·class="p[·...·truncated·by·diffoscope;·len:·135,·SHA:·33bb38a9ab6c4a831afb688f39a50400a5d912aa6072c4736f0ce7d4a64f0340·...·]-13">}</span><span·class="p">,</span><span·class="w"> |
| 317 | ·························</span><span·class="p"·data-group-id=" | 317 | ·························</span><span·class="p"·data-group-id="1083494766-16">{</span><span·class="ss">attributes</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">record_info</span><span·class="p"·data-group-id="1083494766-17">(</span><span·class="ss">fields</span><span·class="p">,</span><span·class="w"> |
| 318 | ··················································</span><span·class="ss">httpd_user</span><span·class="p"·data-group-id=" | 318 | ··················································</span><span·class="ss">httpd_user</span><span·class="p"·data-group-id="1083494766-17">)</span><span·class="p"·data-group-id="1083494766-16">}</span><span·class="p"·data-group-id="1083494766-11">]</span><span·class="p"·data-group-id="1083494766-10">)</span><span·class="p">,</span><span·class="w"> |
| 319 | ····</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">create_table</span><span·class="p"·data-group-id=" | 319 | ····</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">create_table</span><span·class="p"·data-group-id="1083494766-18">(</span><span·class="ss">httpd_group</span><span·class="p">,</span><span·class="w"> |
| 320 | ························</span><span·class="p"·data-group-id=" | 320 | ························</span><span·class="p"·data-group-id="1083494766-19">[</span><span·class="p"·data-group-id="1083494766-20">{</span><span·class="ss">type</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">bag</span><span·class="p"·data-group-id="1083494766-20">}</span><span·class="p">,</span><span·class="w"> |
| 321 | ·························</span><span·class="p"·data-group-id=" | 321 | ·························</span><span·class="p"·data-group-id="1083494766-21">{</span><span·class="ss">disc_copies</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1083494766-22">[</span><span·class="nf">node</span><span·class="p"·data-group-id="1083494766-23">(</span><span·class="p[·...·truncated·by·diffoscope;·len:·135,·SHA:·ec1a0f9bc0f12cd78f602f1e08f23cfe6b3d8eba3cd05e558da300d8db166799·...·]-21">}</span><span·class="p">,</span><span·class="w"> |
| 322 | ·························</span><span·class="p"·data-group-id=" | 322 | ·························</span><span·class="p"·data-group-id="1083494766-24">{</span><span·class="ss">attributes</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">record_info</span><span·class="p"·data-group-id="1083494766-25">(</span><span·class="ss">fields</span><span·class="p">,</span><span·class="w"> |
| 323 | ··················································</span><span·class="ss">httpd_group</span><span·class="p"·data-group-id=" | 323 | ··················································</span><span·class="ss">httpd_group</span><span·class="p"·data-group-id="1083494766-25">)</span><span·class="p"·data-group-id="1083494766-24">}</span><span·class="p"·data-group-id="1083494766-19">]</span><span·class="p"·data-group-id="1083494766-18">)</span><span·class="p">,</span><span·class="w"> |
| 324 | ····</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">wait_for_tables</span><span·class="p"·data-group-id=" | 324 | ····</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">wait_for_tables</span><span·class="p"·data-group-id="1083494766-26">(</span><span·class="p"·data-group-id="1083494766-27">[</span><span·class="ss">httpd_user</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">httpd_group</span><span·class="p"·data-group-id="1083494766-27">]</span><span·cl[·...·truncated·by·diffoscope;·len:·110,·SHA:·33999ad87244056f2cd8dcd8ac34496229ce0eec8f04113277ca6a8e5ecb2d7e·...·]-26">)</span><span·class="p">.</span><span·class="w"> |
| 325 | </span><span·class="nf">start</span><span·class="p"·data-group-id=" | 325 | </span><span·class="nf">start</span><span·class="p"·data-group-id="1083494766-28">(</span><span·class="p"·data-group-id="1083494766-28">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 326 | ····</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id=" | 326 | ····</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id="1083494766-29">(</span><span·class="p"·data-group-id="1083494766-29">)</span><span·class="p">,</span><span·class="w"> |
| 327 | ····</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">wait_for_tables</span><span·class="p"·data-group-id=" | 327 | ····</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">wait_for_tables</span><span·class="p"·data-group-id="1083494766-30">(</span><span·class="p"·data-group-id="1083494766-31">[</span><span·class="ss">httpd_user</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">httpd_group</span><span·class="p"·data-group-id="1083494766-31">]</span><span·cl[·...·truncated·by·diffoscope;·len:·110,·SHA:·33999ad87244056f2cd8dcd8ac34496229ce0eec8f04113277ca6a8e5ecb2d7e·...·]-30">)</span><span·class="p">.</span></code></pre><p>To·create·the·Mnesia·tables,·we·use·two·records·defined·in·<code·class="inline">mod_auth.hrl</code>,·so |
| 328 | that·file·must·be·included.·<code·class="inline">first_start/0</code>·creates·a·schema·that·specifies·on | 328 | that·file·must·be·included.·<code·class="inline">first_start/0</code>·creates·a·schema·that·specifies·on |
| 329 | which·nodes·the·database·is·to·reside.·Then·it·starts·Mnesia·and·creates·the | 329 | which·nodes·the·database·is·to·reside.·Then·it·starts·Mnesia·and·creates·the |
| 330 | tables.·The·first·argument·is·the·name·of·the·tables,·the·second·argument·is·a | 330 | tables.·The·first·argument·is·the·name·of·the·tables,·the·second·argument·is·a |
| 331 | list·of·options·of·how·to·create·the·table,·see·<a·href="../../../../lib/mnesia-4.24/doc/html/mnesia.html"><code·class="inline">mnesia</code></a>,·documentation·for | 331 | list·of·options·of·how·to·create·the·table,·see·<a·href="../../../../lib/mnesia-4.24/doc/html/mnesia.html"><code·class="inline">mnesia</code></a>,·documentation·for |
| 332 | more·information.·As·the·implementation·of·the·<code·class="inline">mod_auth_mnesia</code>·saves·one·row | 332 | more·information.·As·the·implementation·of·the·<code·class="inline">mod_auth_mnesia</code>·saves·one·row |
| 333 | for·each·user,·the·type·must·be·<code·class="inline">bag</code>.·When·the·schema·and·the·tables·are | 333 | for·each·user,·the·type·must·be·<code·class="inline">bag</code>.·When·the·schema·and·the·tables·are |
| 334 | created,·function·<a·href="../../../../lib/mnesia-4.24/doc/html/mnesia.html#start/0"><code·class="inline">mnesia:start/0</code></a>·is·used·to·start·Mnesia·and·waits·for·the | 334 | created,·function·<a·href="../../../../lib/mnesia-4.24/doc/html/mnesia.html#start/0"><code·class="inline">mnesia:start/0</code></a>·is·used·to·start·Mnesia·and·waits·for·the |
| Offset 481, 15 lines modified | Offset 481, 15 lines modified | ||
| 481 | ······<p·class="built-using"> | 481 | ······<p·class="built-using"> |
| 482 | ········Built·using | 482 | ········Built·using |
| 483 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 483 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 484 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 484 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 485 | ······</p> | 485 | ······</p> |
| 486 | <p>Copyright·©·1996-202 | 486 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 487 | ····</footer> | 487 | ····</footer> |
| 488 | ··</div> | 488 | ··</div> |
| 489 | </main> | 489 | </main> |
| 490 | </div> | 490 | </div> |
| 491 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 491 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 492 | ··<script> | 492 | ··<script> |
| 493 | ··let·initialized·=·false; | 493 | ··let·initialized·=·false; |
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| 277 | ······<p·class="built-using"> | 277 | ······<p·class="built-using"> |
| 278 | ········Built·using | 278 | ········Built·using |
| 279 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 279 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 280 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 280 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 281 | ······</p> | 281 | ······</p> |
| 282 | <p>Copyright·©·1996-202 | 282 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 283 | ····</footer> | 283 | ····</footer> |
| 284 | ··</div> | 284 | ··</div> |
| 285 | </main> | 285 | </main> |
| 286 | </div> | 286 | </div> |
| 287 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 287 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 288 | ··<script> | 288 | ··<script> |
| 289 | ··let·initialized·=·false; | 289 | ··let·initialized·=·false; |
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| 1037 | options.</p></section><p>By·default·the·socket·options·set·by·function | 1037 | options.</p></section><p>By·default·the·socket·options·set·by·function |
| 1038 | <a·href="#set_options/1">set_options/1,2</a>·are·used·when·establishing·a·connection.</p></li><li><p><strong><code·class="inline">receiver</code></strong>·-·Defines·how·the·client·delivers·the·result·of·an·asynchronous | 1038 | <a·href="#set_options/1">set_options/1,2</a>·are·used·when·establishing·a·connection.</p></li><li><p><strong><code·class="inline">receiver</code></strong>·-·Defines·how·the·client·delivers·the·result·of·an·asynchronous |
| 1039 | request·(<code·class="inline">sync</code>·has·the·value·<code·class="inline">false</code>).</p><ul><li><p><strong><a·href="../../../../erts-16.0/doc/html/erlang.html#t:pid/0"><code·class="inline">pid/0</code></a></strong>·-·Messages·are·sent·to·this·process·in·the·format | 1039 | request·(<code·class="inline">sync</code>·has·the·value·<code·class="inline">false</code>).</p><ul><li><p><strong><a·href="../../../../erts-16.0/doc/html/erlang.html#t:pid/0"><code·class="inline">pid/0</code></a></strong>·-·Messages·are·sent·to·this·process·in·the·format |
| 1040 | <code·class="inline">{http,·ReplyInfo}</code>.</p></li><li><p><strong><a·href="../../../../erts-16.0/doc/html/erlang.html#alias/0"><code·class="inline">alias/0</code></a></strong>·-·Messages·are·sent·to·this·special·reference·in·the·format | 1040 | <code·class="inline">{http,·ReplyInfo}</code>.</p></li><li><p><strong><a·href="../../../../erts-16.0/doc/html/erlang.html#alias/0"><code·class="inline">alias/0</code></a></strong>·-·Messages·are·sent·to·this·special·reference·in·the·format |
| 1041 | <code·class="inline">{http,·ReplyInfo}</code>.</p></li><li><p><strong><code·class="inline">function/1</code></strong>·-·Information·is·delivered·to·the·receiver·through·calls·to | 1041 | <code·class="inline">{http,·ReplyInfo}</code>.</p></li><li><p><strong><code·class="inline">function/1</code></strong>·-·Information·is·delivered·to·the·receiver·through·calls·to |
| 1042 | the·provided·fun·<code·class="inline">Receiver(ReplyInfo)</code>.</p></li><li><p><strong><code·class="inline">{Module,·Function,·Args}</code></strong>·-·Information·is·delivered·to·the·receiver | 1042 | the·provided·fun·<code·class="inline">Receiver(ReplyInfo)</code>.</p></li><li><p><strong><code·class="inline">{Module,·Function,·Args}</code></strong>·-·Information·is·delivered·to·the·receiver |
| 1043 | through·calls·to·the·callback·function | 1043 | through·calls·to·the·callback·function |
| 1044 | <a·href="../../../../erts-16.0/doc/html/erlang.html#apply/3"><code·class="inline">apply(Module,·Function,·[ReplyInfo·|·Args])</code></a>.</p></li></ul><p>In·all·of·these·cases,·<code·class="inline">ReplyInfo</code>·has·the·following·structure:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">·</span><span·class="p"·data-group-id=" | 1044 | <a·href="../../../../erts-16.0/doc/html/erlang.html#apply/3"><code·class="inline">apply(Module,·Function,·[ReplyInfo·|·Args])</code></a>.</p></li></ul><p>In·all·of·these·cases,·<code·class="inline">ReplyInfo</code>·has·the·following·structure:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">·</span><span·class="p"·data-group-id="8701741367-1">{</span><span·class="n">RequestId</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">saved_to_file</span><span·class="p"·data-group-id="8701741367-1">}</span><span·class="w"> |
| 1045 | ·</span><span·class="p"·data-group-id=" | 1045 | ·</span><span·class="p"·data-group-id="8701741367-2">{</span><span·class="n">RequestId</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8701741367-3">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Reason</[·...·truncated·by·diffoscope;·len:·99,·SHA:·2f5f5195a4a57115a6fa69643ef847a3ea24fde5cb0dfa57239329962b9b6939·...·]-2">}</span><span·class="w"> |
| 1046 | ·</span><span·class="p"·data-group-id=" | 1046 | ·</span><span·class="p"·data-group-id="8701741367-4">{</span><span·class="n">RequestId</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Result</span><span·class="p"·data-group-id="8701741367-4">}</span><span·class="w"> |
| 1047 | ·</span><span·class="p"·data-group-id=" | 1047 | ·</span><span·class="p"·data-group-id="8701741367-5">{</span><span·class="n">RequestId</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">stream_start</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Headers</span><span·class="p"·data-group-id="870174136[·...·truncated·by·diffoscope;·len:·1,·SHA:·7902699be42c8a8e46fbbb4501726517e86b22c56a189f7625a6da49081b2451·...·]-5">}</span><span·class="w"> |
| 1048 | ·</span><span·class="p"·data-group-id=" | 1048 | ·</span><span·class="p"·data-group-id="8701741367-6">{</span><span·class="n">RequestId</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">stream_start</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Headers</span><span·class="p">,</span><span·class="w">[·...·truncated·by·diffoscope;·len:·82,·SHA:·e77c46521f0a54482bdc97b61beda836f0abdf8d34d38773c51437c62caef499·...·]-6">}</span><span·class="w"> |
| 1049 | ·</span><span·class="p"·data-group-id=" | 1049 | ·</span><span·class="p"·data-group-id="8701741367-7">{</span><span·class="n">RequestId</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">stream</span><span·class="p">,</span><span·class="w">·</span><span·class="n">BinBodyPart</span><span·class="p"·data-group-id="8701741367-7">}</span><span·class="w"> |
| 1050 | ·</span><span·class="p"·data-group-id=" | 1050 | ·</span><span·class="p"·data-group-id="8701741367-8">{</span><span·class="n">RequestId</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">stream_end</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Headers</span><span·class="p"·data-group-id="8701741367-8">}</span></code></pre><p>Default·is·the·<code·class="inline">pid</code>·of·the·process·calling·the·request·function·(<a·href="../../../../erts-16.0/doc/html/erlang.html#self/0"><code·class="inline">self/0</code></a>).</p><p><a·href=""·id="ipv6_host_with_brackets"></a></p></li><li><p><strong><code·class="inline">ipv6_host_with_brackets</code></strong>·-·Defines·when·parsing·the·Host-Port·part·of·an |
| 1051 | URI·with·an·IPv6·address·with·brackets,·if·those·brackets·are·to·be·retained | 1051 | URI·with·an·IPv6·address·with·brackets,·if·those·brackets·are·to·be·retained |
| 1052 | (<code·class="inline">true</code>)·or·stripped·(<code·class="inline">false</code>).</p><p>Default·is·<code·class="inline">false</code>.</p></li></ul> | 1052 | (<code·class="inline">true</code>)·or·stripped·(<code·class="inline">false</code>).</p><p>Default·is·<code·class="inline">false</code>.</p></li></ul> |
| 1053 | ··</section> | 1053 | ··</section> |
| 1054 | </section> | 1054 | </section> |
| 1055 | <section·class="detail"·id="reset_cookies/0"> | 1055 | <section·class="detail"·id="reset_cookies/0"> |
| 1056 | ··<div·class="detail-header"> | 1056 | ··<div·class="detail-header"> |
| Offset 1561, 15 lines modified | Offset 1561, 15 lines modified | ||
| 1561 | ······<p·class="built-using"> | 1561 | ······<p·class="built-using"> |
| 1562 | ········Built·using | 1562 | ········Built·using |
| 1563 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1563 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1564 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1564 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1565 | ······</p> | 1565 | ······</p> |
| 1566 | <p>Copyright·©·1996-202 | 1566 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1567 | ····</footer> | 1567 | ····</footer> |
| 1568 | ··</div> | 1568 | ··</div> |
| 1569 | </main> | 1569 | </main> |
| 1570 | </div> | 1570 | </div> |
| 1571 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1571 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1572 | ··<script> | 1572 | ··<script> |
| 1573 | ··let·initialized·=·false; | 1573 | ··let·initialized·=·false; |
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| 246 | }</code></pre><p>An·example·of·a·log·entry·with·only·default·settings·of·logger</p><pre><code·class="text">=ERROR·REPORT====·9-Oct-2019::09:33:27.350235·=== | 246 | }</code></pre><p>An·example·of·a·log·entry·with·only·default·settings·of·logger</p><pre><code·class="text">=ERROR·REPORT====·9-Oct-2019::09:33:27.350235·=== |
| 247 | ···Server:·My·Server | 247 | ···Server:·My·Server |
| 248 | ·Protocol:·HTTP | 248 | ·Protocol:·HTTP |
| 249 | Transport:·TLS | 249 | Transport:·TLS |
| 250 | ······URI:·/not_there | 250 | ······URI:·/not_there |
| 251 | ·····Host:·127.0.1.1:80 | 251 | ·····Host:·127.0.1.1:80 |
| 252 | ·····Peer:·127.0.0.1:45253 | 252 | ·····Peer:·127.0.0.1:45253 |
| 253 | ···Reason:·[{statuscode,404},{description,"Object·Not·Found"}]</code></pre><p>Using·this·option·makes·mod_log·and·mod_disk_log·error·logs·redundant.</p><p>Add·the·filter</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 253 | ···Reason:·[{statuscode,404},{description,"Object·Not·Found"}]</code></pre><p>Using·this·option·makes·mod_log·and·mod_disk_log·error·logs·redundant.</p><p>Add·the·filter</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="0981108140-1">{</span><span·class="k">fun</span><span·class="w">·</span><span·class="nc">logger_filters</span><span·class="p">:</span><span·class="ss">domain</span><span·class="p">/</span><span·class="mi">2</span><span·class="p">,</span><span·class="w"> |
| 254 | ····</span><span·class="p"·data-group-id=" | 254 | ····</span><span·class="p"·data-group-id="0981108140-2">{</span><span·class="ss">log</span><span·class="p">,</span><span·class="ss">equal</span><span·class="p">,</span><span·class="p"·data-group-id="0981108140-3">[</span><span·class="ss">otp</span><span·class="p">,</span><span·class="ss">inets</sp[·...·truncated·by·diffoscope;·len:·330,·SHA:·501b60d39098e8444feeb083bf1bbbebe020f256b16e680ceb385d556b919b31·...·]-2">}</span></code></pre><p>to·appropriate·logger·handler·to·handle·the·events.·For·example·to·write·the |
| 255 | error·log·from·an·httpd·server·with·a·<code·class="inline">ServerID</code>·of·<code·class="inline">my_server</code>·to·a·file | 255 | error·log·from·an·httpd·server·with·a·<code·class="inline">ServerID</code>·of·<code·class="inline">my_server</code>·to·a·file |
| 256 | you·can·use·the·following·sys.config:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="2 | 256 | you·can·use·the·following·sys.config:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="2496618910-1">[</span><span·class="p"·data-group-id="2496618910-2">{</span><span·class="ss">kernel</span><span·class="p">,</span><span·class="w"> |
| 257 | ·</span><span·class="p"·data-group-id="2 | 257 | ·</span><span·class="p"·data-group-id="2496618910-3">[</span><span·class="p"·data-group-id="2496618910-4">{</span><span·class="ss">logger</span><span·class="p">,</span><span·class="w"> |
| 258 | ··</span><span·class="p"·data-group-id="2 | 258 | ··</span><span·class="p"·data-group-id="2496618910-5">[</span><span·class="p"·data-group-id="2496618910-6">{</span><span·class="ss">handler</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">http_error_test</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">logger_std_h</span><span·class="p">,</span><span·class="w"> |
| 259 | ····</span><span·class="p"·data-group-id="2 | 259 | ····</span><span·class="p"·data-group-id="2496618910-7">#{</span><span·class="ss">config</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="2496618910-8">#{</span><span·class="w">·</span><span·class="ss">file</span><span·class="w">·</spa[·...·truncated·by·diffoscope;·len:·172,·SHA:·dab2db6cae5040402f002063ba0afadd60f517cac68ce2ef06c9b0323e338aa3·...·]-8">}</span><span·class="p">,</span><span·class="w"> |
| 260 | ······</span><span·class="ss">filters</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="2 | 260 | ······</span><span·class="ss">filters</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="2496618910-9">[</span><span·class="p"·data-group-id="2496618910-10">{</span><span·class="ss">inets_httpd</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2496618910-11">{</span><span·class="k">fun</span><span·class="w">·</span><span·class="nc">logger_filters</span><span·class="p">:</span><span·class="ss">domain</span><span·class="p">/</span><span·class="mi">2</span><span·class="p">,</span><span·class="w"> |
| 261 | ·································</span><span·class="p"·data-group-id="2 | 261 | ·································</span><span·class="p"·data-group-id="2496618910-12">{</span><span·class="ss">log</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">equal</span><span·class="p">,</span><span·class="w"> |
| 262 | ··································</span><span·class="p"·data-group-id="2 | 262 | ··································</span><span·class="p"·data-group-id="2496618910-13">[</span><span·class="ss">otp</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">inets</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">httpd</span><span·class="p">,</span><span·class="w">·</span><span[·...·truncated·by·diffoscope;·len:·146,·SHA:·85d163ecd62ae1509d305adffd050b535250215f0a8da71b36a78c48947c85bc·...·]-13">]</span><span·class="w"> |
| 263 | ·································</span><span·class="p"·data-group-id="2 | 263 | ·································</span><span·class="p"·data-group-id="2496618910-12">}</span><span·class="p"·data-group-id="2496618910-11">}</span><span·class="p"·data-group-id="2496618910-10">}</span><span·class="p"·data-group-id="2496618910-9">]</span><span·class="p">,</span><span·class="w"> |
| 264 | ······</span><span·class="ss">filter_default</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">stop</span><span·class="w">·</span><span·class="p"·data-group-id="2 | 264 | ······</span><span·class="ss">filter_default</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">stop</span><span·class="w">·</span><span·class="p"·data-group-id="2496618910-7">}</span><span·class="p"·data-group-id="2496618910-6">}</span><span·class="p"·data-group-id="2496618910-5">]</span><span·class="p"·data-group-id="2496618910-4">}</span><span·class="p"·data-group-id="2496618910-3">]</span><span·class="p"·data-gr[·...·truncated·by·diffoscope;·len:·370,·SHA:·2b846d95956bdabbd1bebf36c73d7e5bb1369d9db53e403483535ce6fa1eeb33·...·]-1">(</span><span·class="ss">default</span><span·class="p">,</span><span·class="w"> |
| 265 | ··························</span><span·class="ss">inets_httpd</span><span·class="p">,</span><span·class="w"> | 265 | ··························</span><span·class="ss">inets_httpd</span><span·class="p">,</span><span·class="w"> |
| 266 | ··························</span><span·class="p"·data-group-id=" | 266 | ··························</span><span·class="p"·data-group-id="9377899956-2">{</span><span·class="k">fun</span><span·class="w">·</span><span·class="nc">logger_filters</span><span·class="p">:</span><span·class="ss">domain</span><span·class="p">/</span><span·class="mi">2</span><span·class="p">,</span><span·class="w"> |
| 267 | ···························</span><span·class="p"·data-group-id=" | 267 | ···························</span><span·class="p"·data-group-id="9377899956-3">{</span><span·class="ss">log</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">equal</span><span·class="p">,</span><span·class="w"> |
| 268 | ····························</span><span·class="p"·data-group-id=" | 268 | ····························</span><span·class="p"·data-group-id="9377899956-4">[</span><span·class="ss">otp</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">inets</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">httpd</span><span·class="p">,</span><span·class="w">·</span><span[·...·truncated·by·diffoscope;·len:·305,·SHA:·75e8d5b7ba7b7022b3a3bfa9f98e0b3bf7ae97adaeaceac27b5a7046f1f339a5·...·]-1">)</span><span·class="p">.</span></code></pre></li></ul></li><li><p><a·href=""·id="prop_log_format"></a>·<strong><code·class="inline">{log_format,·common·|·combined}</code></strong><br/>Defines·if·access·logs·are·to·be·written·according·to·the·<code·class="inline">common</code>·log·format |
| 269 | or·the·extended·common·log·format.·The·<code·class="inline">common</code>·format·is·one·line·looking | 269 | or·the·extended·common·log·format.·The·<code·class="inline">common</code>·format·is·one·line·looking |
| 270 | like·this:·<code·class="inline">remotehost·rfc931·authuser·[date]·"request"·status·bytes</code>.</p><p>Here:</p><ul><li><p><strong><code·class="inline">remotehost</code></strong>·-·Remote.</p></li><li><p><strong><code·class="inline">rfc931</code></strong>·-·The·remote·username·of·the·client | 270 | like·this:·<code·class="inline">remotehost·rfc931·authuser·[date]·"request"·status·bytes</code>.</p><p>Here:</p><ul><li><p><strong><code·class="inline">remotehost</code></strong>·-·Remote.</p></li><li><p><strong><code·class="inline">rfc931</code></strong>·-·The·remote·username·of·the·client |
| 271 | (<a·href="http://www.ietf.org/rfc/rfc931.txt">RFC·931</a>).</p></li><li><p><strong><code·class="inline">authuser</code></strong>·-·The·username·used·for·authentication.</p></li><li><p><strong><code·class="inline">[date]</code></strong>·-·Date·and·time·of·the·request | 271 | (<a·href="http://www.ietf.org/rfc/rfc931.txt">RFC·931</a>).</p></li><li><p><strong><code·class="inline">authuser</code></strong>·-·The·username·used·for·authentication.</p></li><li><p><strong><code·class="inline">[date]</code></strong>·-·Date·and·time·of·the·request |
| 272 | (<a·href="http://www.ietf.org/rfc/rfc1123.txt">RFC·1123</a>).</p></li><li><p><strong><code·class="inline">"request"</code></strong>·-·The·request·line·as·it·came·from·the·client | 272 | (<a·href="http://www.ietf.org/rfc/rfc1123.txt">RFC·1123</a>).</p></li><li><p><strong><code·class="inline">"request"</code></strong>·-·The·request·line·as·it·came·from·the·client |
| 273 | (<a·href="http://www.ietf.org/rfc/rfc1945.txt">RFC·1945</a>).</p></li><li><p><strong><code·class="inline">status</code></strong>·-·The·HTTP·status·code·returned·to·the·client | 273 | (<a·href="http://www.ietf.org/rfc/rfc1945.txt">RFC·1945</a>).</p></li><li><p><strong><code·class="inline">status</code></strong>·-·The·HTTP·status·code·returned·to·the·client |
| 274 | (<a·href="http://www.ietf.org/rfc/rfc1945.txt">RFC·1945</a>).</p></li><li><p><strong><code·class="inline">bytes</code></strong>·-·The·content-length·of·the·document·transferred.</p></li></ul><p>The·<code·class="inline">combined</code>·format·is·one·line·looking·like·this: | 274 | (<a·href="http://www.ietf.org/rfc/rfc1945.txt">RFC·1945</a>).</p></li><li><p><strong><code·class="inline">bytes</code></strong>·-·The·content-length·of·the·document·transferred.</p></li></ul><p>The·<code·class="inline">combined</code>·format·is·one·line·looking·like·this: |
| 275 | <code·class="inline">remotehost·rfc931·authuser·[date]·"request"·status·bytes·"referer"·"user_agent"</code></p><p>In·addition·to·the·earlier:</p><ul><li><p><strong><code·class="inline">"referer"</code></strong>·-·The·URL·the·client·was·on·before·requesting·the·URL·(if·it | 275 | <code·class="inline">remotehost·rfc931·authuser·[date]·"request"·status·bytes·"referer"·"user_agent"</code></p><p>In·addition·to·the·earlier:</p><ul><li><p><strong><code·class="inline">"referer"</code></strong>·-·The·URL·the·client·was·on·before·requesting·the·URL·(if·it |
| 276 | could·not·be·determined,·a·minus·sign·is·placed·in·this·field).</p></li><li><p><strong><code·class="inline">"user_agent"</code></strong>·-·The·software·the·client·claims·to·be·using·(if·it·could | 276 | could·not·be·determined,·a·minus·sign·is·placed·in·this·field).</p></li><li><p><strong><code·class="inline">"user_agent"</code></strong>·-·The·software·the·client·claims·to·be·using·(if·it·could |
| 277 | not·be·determined,·a·minus·sign·is·placed·in·this·field).</p></li></ul><p>This·affects·the·access·logs·written·by·<code·class="inline">mod_log</code>·and·<code·class="inline">mod_disk_log</code>.</p></li><li><p><a·href=""·id="prop_elog_format"></a>·<strong><code·class="inline">{error_log_format,·pretty·|·compact}</code></strong><br/>Default·is·<code·class="inline">pretty</code>.·If·the·error·log·is·meant·to·be·read·directly·by·a·human, | 277 | not·be·determined,·a·minus·sign·is·placed·in·this·field).</p></li></ul><p>This·affects·the·access·logs·written·by·<code·class="inline">mod_log</code>·and·<code·class="inline">mod_disk_log</code>.</p></li><li><p><a·href=""·id="prop_elog_format"></a>·<strong><code·class="inline">{error_log_format,·pretty·|·compact}</code></strong><br/>Default·is·<code·class="inline">pretty</code>.·If·the·error·log·is·meant·to·be·read·directly·by·a·human, |
| 278 | <code·class="inline">pretty</code>·is·the·best·option.</p><p><code·class="inline">pretty</code>·has·a·format·corresponding·to:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 278 | <code·class="inline">pretty</code>·is·the·best·option.</p><p><code·class="inline">pretty</code>·has·a·format·corresponding·to:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="1982712691-1">(</span><span·class="s">"[</span><span·class="si">~s</span><span·class="s">]·</span><span·class="si">~s</span><span·class="s">,·reason:·</span><span·class="si">~n</span><span·class="s">·</span><span·class="si">~p</span><span·class="s">·<[·...·truncated·by·diffoscope;·len:·1381,·SHA:·43840d249ecbeb1ac4bc2d8cad9b0cc4c6a8f9ab328143943602668133100ac4·...·]-1">)</span><span·class="p">.</span></code></pre><p>This·affects·the·error·logs·written·by·<code·class="inline">mod_log</code>·and·<code·class="inline">mod_disk_log</code>.</p></li></ul><p><a·href=""·id="props_alias"></a></p><h3·id="module-url-aliasing-properties-requires-mod_alias"·class="section-heading"> |
| 279 | ··<a·href="#module-url-aliasing-properties-requires-mod_alias"·class="hover-link"> | 279 | ··<a·href="#module-url-aliasing-properties-requires-mod_alias"·class="hover-link"> |
| 280 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 280 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 281 | ··</a> | 281 | ··</a> |
| 282 | ··<span·class="text">URL·Aliasing·Properties·-·Requires·mod_alias</span> | 282 | ··<span·class="text">URL·Aliasing·Properties·-·Requires·mod_alias</span> |
| 283 | </h3> | 283 | </h3> |
| 284 | <ul><li><p><a·href=""·id="prop_alias"></a>·<strong><code·class="inline">{alias,·{Alias,·RealName}}</code></strong><br/><code·class="inline">Alias·=·string()</code>·and·<code·class="inline">RealName·=·string()</code>.·<code·class="inline">alias</code>·allows·documents·to·be | 284 | <ul><li><p><a·href=""·id="prop_alias"></a>·<strong><code·class="inline">{alias,·{Alias,·RealName}}</code></strong><br/><code·class="inline">Alias·=·string()</code>·and·<code·class="inline">RealName·=·string()</code>.·<code·class="inline">alias</code>·allows·documents·to·be |
| 285 | stored·in·the·local·file·system·instead·of·the·<code·class="inline">document_root</code>·location.·URLs | 285 | stored·in·the·local·file·system·instead·of·the·<code·class="inline">document_root</code>·location.·URLs |
| 286 | with·a·path·beginning·with·url-path·is·mapped·to·local·files·beginning·with | 286 | with·a·path·beginning·with·url-path·is·mapped·to·local·files·beginning·with |
| 287 | directory-filename,·for·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 287 | directory-filename,·for·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="0540511120-1">{</span><span·class="ss">alias</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0540511120-2">{</span><span·class="s">"/image"</span><span·class="p">,</span><span·class="w">·</span><span·class="s"[·...·truncated·by·diffoscope;·len:·128,·SHA:·5c36e05e8df2a43a90d4f5aa344d09a61cdc899ff3849118f8d7684f564798ba·...·]-1">}</span></code></pre><p>Access·to·<a·href="http://your.server.org/image/foo.gif">http://your.server.org/image/foo.gif</a>·would·refer·to·the·file |
| 288 | /ftp/pub/image/foo.gif.</p></li><li><p><a·href=""·id="prop_re_write"></a>·<strong><code·class="inline">{re_write,·{Re,·Replacement}}</code></strong><br/><code·class="inline">Re·=·string()</code>·and·<code·class="inline">Replacement·=·string()</code>.·<code·class="inline">re_write</code>·allows·documents·to | 288 | /ftp/pub/image/foo.gif.</p></li><li><p><a·href=""·id="prop_re_write"></a>·<strong><code·class="inline">{re_write,·{Re,·Replacement}}</code></strong><br/><code·class="inline">Re·=·string()</code>·and·<code·class="inline">Replacement·=·string()</code>.·<code·class="inline">re_write</code>·allows·documents·to |
| 289 | be·stored·in·the·local·file·system·instead·of·the·<code·class="inline">document_root</code>·location. | 289 | be·stored·in·the·local·file·system·instead·of·the·<code·class="inline">document_root</code>·location. |
| 290 | URLs·are·rewritten·by·<a·href="../../../../lib/stdlib-7.0/doc/html/re.html#replace/3"><code·class="inline">re:replace/3</code></a>·to·produce·a·path·in·the·local | 290 | URLs·are·rewritten·by·<a·href="../../../../lib/stdlib-7.0/doc/html/re.html#replace/3"><code·class="inline">re:replace/3</code></a>·to·produce·a·path·in·the·local |
| 291 | file-system,·for·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 291 | file-system,·for·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="2465839522-1">{</span><span·class="ss">re_write</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2465839522-2">{</span><span·class="s">"^/[~]([^/]+)(.*)$"</span><span·class="p">,</span><span·class="w">·</span><[·...·truncated·by·diffoscope;·len:·146,·SHA:·b2b54972b9d8a4a9f2603a1f3ff8514db63874a5c0d3289b00d3e1332b61c53c·...·]2-1">}</span></code></pre><p>Access·to·<a·href="http://your.server.org/~bob/foo.gif">http://your.server.org/~bob/foo.gif</a>·would·refer·to·the·file |
| 292 | /home/bob/public/foo.gif.</p></li><li><p><a·href=""·id="prop_dir_idx"></a>·<strong><code·class="inline">{directory_index,·[string()]}</code></strong><br/><code·class="inline">directory_index</code>·specifies·a·list·of·resources·to·look·for·if·a·client | 292 | /home/bob/public/foo.gif.</p></li><li><p><a·href=""·id="prop_dir_idx"></a>·<strong><code·class="inline">{directory_index,·[string()]}</code></strong><br/><code·class="inline">directory_index</code>·specifies·a·list·of·resources·to·look·for·if·a·client |
| 293 | requests·a·directory·using·a·<code·class="inline">/</code>·at·the·end·of·the·directory·name.·<code·class="inline">file</code> | 293 | requests·a·directory·using·a·<code·class="inline">/</code>·at·the·end·of·the·directory·name.·<code·class="inline">file</code> |
| 294 | depicts·the·name·of·a·file·in·the·directory.·Several·files·can·be·given,·in | 294 | depicts·the·name·of·a·file·in·the·directory.·Several·files·can·be·given,·in |
| 295 | which·case·the·server·returns·the·first·it·finds,·for·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 295 | which·case·the·server·returns·the·first·it·finds,·for·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="6647240877-1">{</span><span·class="ss">directory_index</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6647240877-2">[</span><span·class="s">"index.html"</span><span·class="p">,</span><span·class="w">·</span><[·...·truncated·by·diffoscope;·len:·140,·SHA:·a28f461d0e733094beda7705c1e2a684a06e02d51b1e83c4ec584b5b3b36d532·...·]-1">}</span></code></pre><p>Access·to·<a·href="http://your.server.org/docs/">http://your.server.org/docs/</a>·would·return |
| 296 | <a·href="http://your.server.org/docs/index.html">http://your.server.org/docs/index.html</a>·or | 296 | <a·href="http://your.server.org/docs/index.html">http://your.server.org/docs/index.html</a>·or |
| 297 | <a·href="http://your.server.org/docs/welcome.html">http://your.server.org/docs/welcome.html</a>·if·index.html·does·not·exist.</p></li></ul><p><a·href=""·id="props_cgi"></a></p><h3·id="module-cgi-properties-requires-mod_cgi"·class="section-heading"> | 297 | <a·href="http://your.server.org/docs/welcome.html">http://your.server.org/docs/welcome.html</a>·if·index.html·does·not·exist.</p></li></ul><p><a·href=""·id="props_cgi"></a></p><h3·id="module-cgi-properties-requires-mod_cgi"·class="section-heading"> |
| 298 | ··<a·href="#module-cgi-properties-requires-mod_cgi"·class="hover-link"> | 298 | ··<a·href="#module-cgi-properties-requires-mod_cgi"·class="hover-link"> |
| 299 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 299 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 300 | ··</a> | 300 | ··</a> |
| 301 | ··<span·class="text">CGI·Properties·-·Requires·mod_cgi</span> | 301 | ··<span·class="text">CGI·Properties·-·Requires·mod_cgi</span> |
| 302 | </h3> | 302 | </h3> |
| Offset 316, 23 lines modified | Offset 316, 23 lines modified | ||
| 316 | activating·a·CGI·script·whenever·a·file·of·a·certain·MIME·type·is·requested. | 316 | activating·a·CGI·script·whenever·a·file·of·a·certain·MIME·type·is·requested. |
| 317 | It·propagates·the·URL·and·file·path·of·the·requested·document·using·the | 317 | It·propagates·the·URL·and·file·path·of·the·requested·document·using·the |
| 318 | standard·CGI·PATH_INFO·and·PATH_TRANSLATED·environment·variables.</p><p>Example:</p><pre><code·class="text">{action,·{"text/plain",·"/cgi-bin/log_and_deliver_text"}}</code></pre></li><li><p><a·href=""·id="prop_script"></a>·<strong><code·class="inline">{script,·{Method,·CgiScript}}</code></strong>·-·requires·<code·class="inline">mod_actions</code><br/><code·class="inline">Method·=·string()</code>·and·<code·class="inline">CgiScript·=·string()</code>.·<code·class="inline">script</code>·adds·an·action | 318 | standard·CGI·PATH_INFO·and·PATH_TRANSLATED·environment·variables.</p><p>Example:</p><pre><code·class="text">{action,·{"text/plain",·"/cgi-bin/log_and_deliver_text"}}</code></pre></li><li><p><a·href=""·id="prop_script"></a>·<strong><code·class="inline">{script,·{Method,·CgiScript}}</code></strong>·-·requires·<code·class="inline">mod_actions</code><br/><code·class="inline">Method·=·string()</code>·and·<code·class="inline">CgiScript·=·string()</code>.·<code·class="inline">script</code>·adds·an·action |
| 319 | activating·a·CGI·script·whenever·a·file·is·requested·using·a·certain·HTTP | 319 | activating·a·CGI·script·whenever·a·file·is·requested·using·a·certain·HTTP |
| 320 | method.·The·method·is·either·GET·or·POST,·as·defined·in | 320 | method.·The·method·is·either·GET·or·POST,·as·defined·in |
| 321 | <a·href="http://www.ietf.org/rfc/rfc1945.txt">RFC·1945</a>.·It·propagates·the·URL·and | 321 | <a·href="http://www.ietf.org/rfc/rfc1945.txt">RFC·1945</a>.·It·propagates·the·URL·and |
| 322 | file·path·of·the·requested·document·using·the·standard·CGI·PATH_INFO·and | 322 | file·path·of·the·requested·document·using·the·standard·CGI·PATH_INFO·and |
| 323 | PATH_TRANSLATED·environment·variables.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 323 | PATH_TRANSLATED·environment·variables.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="9236092413-1">{</span><span·class="ss">script</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9236092413-2">{</span><span·class="s">"PUT"</span><span·class="p">,</span><span·class="w">·</span><span·class="s">&[·...·truncated·by·diffoscope;·len:·124,·SHA:·6044405268aefbee1a582ae461c466ca2da3c2eab9a4fd4dbbdef97ecb17b301·...·]-1">}</span></code></pre></li></ul><p><a·href=""·id="props_esi"></a></p><h3·id="module-esi-properties-requires-mod_esi"·class="section-heading"> |
| 324 | ··<a·href="#module-esi-properties-requires-mod_esi"·class="hover-link"> | 324 | ··<a·href="#module-esi-properties-requires-mod_esi"·class="hover-link"> |
| 325 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 325 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 326 | ··</a> | 326 | ··</a> |
| 327 | ··<span·class="text">ESI·Properties·-·Requires·mod_esi</span> | 327 | ··<span·class="text">ESI·Properties·-·Requires·mod_esi</span> |
| 328 | </h3> | 328 | </h3> |
| 329 | <ul><li><p><a·href=""·id="prop_esi_alias"></a>·<strong><code·class="inline">{erl_script_alias,·{URLPath,·[AllowedModule]}}</code></strong><br/><code·class="inline">URLPath·=·string()</code>·and·<code·class="inline">AllowedModule·=·atom()</code>.·<code·class="inline">erl_script_alias</code>·marks | 329 | <ul><li><p><a·href=""·id="prop_esi_alias"></a>·<strong><code·class="inline">{erl_script_alias,·{URLPath,·[AllowedModule]}}</code></strong><br/><code·class="inline">URLPath·=·string()</code>·and·<code·class="inline">AllowedModule·=·atom()</code>.·<code·class="inline">erl_script_alias</code>·marks |
| 330 | all·URLs·matching·url-path·as·erl·scheme·scripts.·A·matching·URL·is·mapped | 330 | all·URLs·matching·url-path·as·erl·scheme·scripts.·A·matching·URL·is·mapped |
| 331 | into·a·specific·module·and·function,·for·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 331 | into·a·specific·module·and·function,·for·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="6635842890-1">{</span><span·class="ss">erl_script_alias</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6635842890-2">{</span><span·class="s">"/cgi-bin/example"</span><span·class="p">,</span><span·class="w">·<[·...·truncated·by·diffoscope;·len:·243,·SHA:·26a4665c6c225cc91e6ff3abb3f3ef824a86a5d2086e489c31ad34b13ed4b9fa·...·]-1">}</span></code></pre><p>A·request·to·<a·href="http://your.server.org/cgi-bin/example/httpd_example:yahoo">http://your.server.org/cgi-bin/example/httpd_example:yahoo</a>·would |
| 332 | refer·to·httpd_example:yahoo/3·or,·if·that·does·not·exist, | 332 | refer·to·httpd_example:yahoo/3·or,·if·that·does·not·exist, |
| 333 | httpd_example:yahoo/2·and·<a·href="http://your.server.org/cgi-bin/example/other:yahoo">http://your.server.org/cgi-bin/example/other:yahoo</a> | 333 | httpd_example:yahoo/2·and·<a·href="http://your.server.org/cgi-bin/example/other:yahoo">http://your.server.org/cgi-bin/example/other:yahoo</a> |
| 334 | would·not·be·allowed·to·execute.</p></li><li><p><a·href=""·id="prop_esi_nocache"></a>·<strong><code·class="inline">{erl_script_nocache,·boolean()}</code></strong><br/>If·<code·class="inline">erl_script_nocache</code>·is·set·to·<code·class="inline">true</code>,·the·server·adds·HTTP·header·fields | 334 | would·not·be·allowed·to·execute.</p></li><li><p><a·href=""·id="prop_esi_nocache"></a>·<strong><code·class="inline">{erl_script_nocache,·boolean()}</code></strong><br/>If·<code·class="inline">erl_script_nocache</code>·is·set·to·<code·class="inline">true</code>,·the·server·adds·HTTP·header·fields |
| 335 | preventing·proxies·from·caching·the·page.·This·is·generally·a·good·idea·for | 335 | preventing·proxies·from·caching·the·page.·This·is·generally·a·good·idea·for |
| 336 | dynamic·content,·as·the·content·often·varies·between·each·request.·Default·is | 336 | dynamic·content,·as·the·content·often·varies·between·each·request.·Default·is |
| 337 | <code·class="inline">false</code>.</p></li><li><p><a·href=""·id="prop_esi_timeout"></a>·<strong><code·class="inline">{erl_script_timeout,·integer()}</code></strong><br/>If·<code·class="inline">erl_script_timeout</code>·sets·the·time·in·seconds·the·server·waits·between·each | 337 | <code·class="inline">false</code>.</p></li><li><p><a·href=""·id="prop_esi_timeout"></a>·<strong><code·class="inline">{erl_script_timeout,·integer()}</code></strong><br/>If·<code·class="inline">erl_script_timeout</code>·sets·the·time·in·seconds·the·server·waits·between·each |
| 338 | chunk·of·data·to·be·delivered·through·<a·href="mod_esi.html#deliver/2"><code·class="inline">mod_esi:deliver/2</code></a>.·Default·is·<code·class="inline">15</code>. | 338 | chunk·of·data·to·be·delivered·through·<a·href="mod_esi.html#deliver/2"><code·class="inline">mod_esi:deliver/2</code></a>.·Default·is·<code·class="inline">15</code>. |
| Offset 374, 15 lines modified | Offset 374, 15 lines modified | ||
| 374 | is·written·to·each·file·and·max·files·is·used·before·the·first·file·is | 374 | is·written·to·each·file·and·max·files·is·used·before·the·first·file·is |
| 375 | truncated·and·reused.</p></li></ul><p><a·href=""·id="props_auth"></a></p><h3·id="module-authentication-properties-requires-mod_auth"·class="section-heading"> | 375 | truncated·and·reused.</p></li></ul><p><a·href=""·id="props_auth"></a></p><h3·id="module-authentication-properties-requires-mod_auth"·class="section-heading"> |
| 376 | ··<a·href="#module-authentication-properties-requires-mod_auth"·class="hover-link"> | 376 | ··<a·href="#module-authentication-properties-requires-mod_auth"·class="hover-link"> |
| 377 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 377 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 378 | ··</a> | 378 | ··</a> |
| 379 | ··<span·class="text">Authentication·Properties·-·Requires·mod_auth</span> | 379 | ··<span·class="text">Authentication·Properties·-·Requires·mod_auth</span> |
| 380 | </h3> | 380 | </h3> |
| 381 | <p><a·href=""·id="prop_dri"></a></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 381 | <p><a·href=""·id="prop_dri"></a></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="2753420760-1">{</span><span·class="ss">directory</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2753420760-2">{</span><span·class="nf">path</span><span·class="p"·data-group-id="2753420760-3">(</span><span·class="p"·dat[·...·truncated·by·diffoscope;·len:·1510,·SHA:·de26328b16bf38ec7a855012a5b67dd78ac72d18df6a834b54a24ac9e4a216fd·...·]-1">}</span></code></pre><p>The·host·<code·class="inline">123.34.56.11</code>·and·all·machines·on·the·<code·class="inline">150.100.23</code>·subnet·are |
| 382 | allowed·access.</p></li><li><p><a·href=""·id="prop_deny_from"></a>·<strong><code·class="inline">{deny_from,·all·|·[RegxpHostString]}</code></strong><br/>Defines·a·set·of·hosts·to·be·denied·access·to·a·given·directory,·for·example:</p><pre><code·class="text">{deny_from,·["123.34.56.11",·"150.100.23"]}</code></pre><p>The·host·<code·class="inline">123.34.56.11</code>·and·all·machines·on·the·<code·class="inline">150.100.23</code>·subnet·are·not | 382 | allowed·access.</p></li><li><p><a·href=""·id="prop_deny_from"></a>·<strong><code·class="inline">{deny_from,·all·|·[RegxpHostString]}</code></strong><br/>Defines·a·set·of·hosts·to·be·denied·access·to·a·given·directory,·for·example:</p><pre><code·class="text">{deny_from,·["123.34.56.11",·"150.100.23"]}</code></pre><p>The·host·<code·class="inline">123.34.56.11</code>·and·all·machines·on·the·<code·class="inline">150.100.23</code>·subnet·are·not |
| 383 | allowed·access.</p></li><li><p><a·href=""·id="prop_auth_type"></a>·<strong><code·class="inline">{auth_type,·plain·|·dets·|·mnesia}</code></strong><br/>Sets·the·type·of·authentication·database·that·is·used·for·the·directory.·The | 383 | allowed·access.</p></li><li><p><a·href=""·id="prop_auth_type"></a>·<strong><code·class="inline">{auth_type,·plain·|·dets·|·mnesia}</code></strong><br/>Sets·the·type·of·authentication·database·that·is·used·for·the·directory.·The |
| 384 | key·difference·between·the·different·methods·is·that·dynamic·data·can·be·saved | 384 | key·difference·between·the·different·methods·is·that·dynamic·data·can·be·saved |
| 385 | when·Mnesia·and·Dets·are·used.</p></li><li><p><a·href=""·id="prop_auth_user_file"></a>·<strong><code·class="inline">{auth_user_file,·path()}</code></strong><br/>Sets·the·name·of·a·file·containing·the·list·of·users·and·passwords·for·user | 385 | when·Mnesia·and·Dets·are·used.</p></li><li><p><a·href=""·id="prop_auth_user_file"></a>·<strong><code·class="inline">{auth_user_file,·path()}</code></strong><br/>Sets·the·name·of·a·file·containing·the·list·of·users·and·passwords·for·user |
| 386 | authentication.·The·filename·can·be·either·absolute·or·relative·to·the | 386 | authentication.·The·filename·can·be·either·absolute·or·relative·to·the |
| 387 | <code·class="inline">server_root</code>.·If·using·the·plain·storage·method,·this·file·is·a·plain·text | 387 | <code·class="inline">server_root</code>.·If·using·the·plain·storage·method,·this·file·is·a·plain·text |
| 388 | file·where·each·line·contains·a·username·followed·by·a·colon,·followed·by·the | 388 | file·where·each·line·contains·a·username·followed·by·a·colon,·followed·by·the |
| Offset 409, 15 lines modified | Offset 409, 15 lines modified | ||
| 409 | changed·after·the·web·server·is·started.·Otherwise·it·is·written·in·clear·text | 409 | changed·after·the·web·server·is·started.·Otherwise·it·is·written·in·clear·text |
| 410 | in·the·configuration·file.</p></li><li><p><a·href=""·id="prop_req_user"></a>·<strong><code·class="inline">{require_user,·[string()]}</code></strong><br/>Defines·users·to·grant·access·to·a·given·directory·using·a·secret·password.</p></li><li><p><a·href=""·id="prop_req_grp"></a>·<strong><code·class="inline">{require_group,·[string()]}</code></strong><br/>Defines·users·to·grant·access·to·a·given·directory·using·a·secret·password.</p></li></ul><p><a·href=""·id="props_sec"></a></p><h3·id="module-security-properties-requires-mod_security"·class="section-heading"> | 410 | in·the·configuration·file.</p></li><li><p><a·href=""·id="prop_req_user"></a>·<strong><code·class="inline">{require_user,·[string()]}</code></strong><br/>Defines·users·to·grant·access·to·a·given·directory·using·a·secret·password.</p></li><li><p><a·href=""·id="prop_req_grp"></a>·<strong><code·class="inline">{require_group,·[string()]}</code></strong><br/>Defines·users·to·grant·access·to·a·given·directory·using·a·secret·password.</p></li></ul><p><a·href=""·id="props_sec"></a></p><h3·id="module-security-properties-requires-mod_security"·class="section-heading"> |
| 411 | ··<a·href="#module-security-properties-requires-mod_security"·class="hover-link"> | 411 | ··<a·href="#module-security-properties-requires-mod_security"·class="hover-link"> |
| 412 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 412 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 413 | ··</a> | 413 | ··</a> |
| 414 | ··<span·class="text">Security·Properties·-·Requires·mod_security</span> | 414 | ··<span·class="text">Security·Properties·-·Requires·mod_security</span> |
| 415 | </h3> | 415 | </h3> |
| 416 | <p><a·href=""·id="prop_sec_dir"></a></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 416 | <p><a·href=""·id="prop_sec_dir"></a></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="4767095916-1">{</span><span·class="ss">security_directory</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4767095916-2">{</span><span·class="nf">path</span><span·class="p"·data-group-id="4767095916-3">(</span><span·clas[·...·truncated·by·diffoscope;·len:·717,·SHA:·175858a915a82afb550753e72eb6174de42dc826a9b0a138052df3270b8ff82a·...·]-1">}</span></code></pre><p><a·href=""·id="props_sdir"></a></p><p>The·properties·for·the·security·directories·are·as·follows:</p><ul><li><p><a·href=""·id="prop_data_file"></a>·<strong><code·class="inline">{data_file,·path()}</code></strong><br/>Name·of·the·security·data·file.·The·filename·can·either·be·absolute·or |
| 417 | relative·to·the·<code·class="inline">server_root</code>.·This·file·is·used·to·store·persistent·data·for | 417 | relative·to·the·<code·class="inline">server_root</code>.·This·file·is·used·to·store·persistent·data·for |
| 418 | module·<code·class="inline">mod_security</code>.</p></li><li><p><a·href=""·id="prop_max_retries"></a>·<strong><code·class="inline">{max_retries,·integer()}</code></strong><br/>Specifies·the·maximum·number·of·attempts·to·authenticate·a·user·before·the | 418 | module·<code·class="inline">mod_security</code>.</p></li><li><p><a·href=""·id="prop_max_retries"></a>·<strong><code·class="inline">{max_retries,·integer()}</code></strong><br/>Specifies·the·maximum·number·of·attempts·to·authenticate·a·user·before·the |
| 419 | user·is·blocked·out.·If·a·user·successfully·authenticates·while·blocked,·the | 419 | user·is·blocked·out.·If·a·user·successfully·authenticates·while·blocked,·the |
| 420 | user·receives·a·403·(Forbidden)·response·from·the·server.·If·the·user·makes·a | 420 | user·receives·a·403·(Forbidden)·response·from·the·server.·If·the·user·makes·a |
| 421 | failed·attempt·while·blocked,·the·server·returns·401·(Unauthorized),·for | 421 | failed·attempt·while·blocked,·the·server·returns·401·(Unauthorized),·for |
| 422 | security·reasons.·Default·is·<code·class="inline">3</code>.·Can·be·set·to·infinity.</p></li><li><p><a·href=""·id="prop_block_time"></a>·<strong><code·class="inline">{block_time,·integer()}</code></strong><br/>Specifies·the·number·of·minutes·a·user·is·blocked.·After·this·time·has·passed, | 422 | security·reasons.·Default·is·<code·class="inline">3</code>.·Can·be·set·to·infinity.</p></li><li><p><a·href=""·id="prop_block_time"></a>·<strong><code·class="inline">{block_time,·integer()}</code></strong><br/>Specifies·the·number·of·minutes·a·user·is·blocked.·After·this·time·has·passed, |
| 423 | the·user·automatically·regains·access.·Default·is·<code·class="inline">60</code>.</p></li><li><p><a·href=""·id="prop_fail_exp_time"></a>·<strong><code·class="inline">{fail_expire_time,·integer()}</code></strong><br/>Specifies·the·number·of·minutes·a·failed·user·authentication·is·remembered.·If | 423 | the·user·automatically·regains·access.·Default·is·<code·class="inline">60</code>.</p></li><li><p><a·href=""·id="prop_fail_exp_time"></a>·<strong><code·class="inline">{fail_expire_time,·integer()}</code></strong><br/>Specifies·the·number·of·minutes·a·failed·user·authentication·is·remembered.·If |
| Offset 426, 30 lines modified | Offset 426, 30 lines modified | ||
| 426 | remembered.·After·this·time·has·passed,·the·authentication·is·no·longer | 426 | remembered.·After·this·time·has·passed,·the·authentication·is·no·longer |
| 427 | reported.·Default·is·<code·class="inline">30</code>.</p></li></ul><h2·id="module-web-server-api-data-types"·class="section-heading"> | 427 | reported.·Default·is·<code·class="inline">30</code>.</p></li></ul><h2·id="module-web-server-api-data-types"·class="section-heading"> |
| 428 | ··<a·href="#module-web-server-api-data-types"·class="hover-link"> | 428 | ··<a·href="#module-web-server-api-data-types"·class="hover-link"> |
| 429 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 429 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 430 | ··</a> | 430 | ··</a> |
| 431 | ··<span·class="text">Web·server·API·data·types</span> | 431 | ··<span·class="text">Web·server·API·data·types</span> |
| 432 | </h2> | 432 | </h2> |
| 433 | <p>The·Erlang·web·server·API·data·types·are·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">ModData</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">mod</span><span·class="p"·data-group-id=" | 433 | <p>The·Erlang·web·server·API·data·types·are·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">ModData</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">mod</span><span·class="p"·data-group-id="3308755116-1">{</span><span·class="p"·data-group-id="3308755116-1">}</span><span·class="w"> |
| 434 | </span><span·class="w"> | 434 | </span><span·class="w"> |
| 435 | </span><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id=" | 435 | </span><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id="3308755116-2">(</span><span·class="ss">mod</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3308755116-3">{</span><span·class="w"> |
| 436 | ····</span><span·class="ss">data</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 436 | ····</span><span·class="ss">data</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="3308755116-4">[</span><span·class="p"·data-group-id="3308755116-4">]</span><span·class="p">,</span><span·class="w"> |
| 437 | ····</span><span·class="ss">socket_type</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">ip_comm</span><span·class="p">,</span><span·class="w"> | 437 | ····</span><span·class="ss">socket_type</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">ip_comm</span><span·class="p">,</span><span·class="w"> |
| 438 | ····</span><span·class="ss">socket</span><span·class="p">,</span><span·class="w"> | 438 | ····</span><span·class="ss">socket</span><span·class="p">,</span><span·class="w"> |
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| 309 | ······<p·class="built-using"> | 309 | ······<p·class="built-using"> |
| 310 | ········Built·using | 310 | ········Built·using |
| 311 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 311 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 312 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 312 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 313 | ······</p> | 313 | ······</p> |
| 314 | <p>Copyright·©·1996-202 | 314 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 315 | ····</footer> | 315 | ····</footer> |
| 316 | ··</div> | 316 | ··</div> |
| 317 | </main> | 317 | </main> |
| 318 | </div> | 318 | </div> |
| 319 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 319 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 320 | ··<script> | 320 | ··<script> |
| 321 | ··let·initialized·=·false; | 321 | ··let·initialized·=·false; |
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| 311 | ······<p·class="built-using"> | 311 | ······<p·class="built-using"> |
| 312 | ········Built·using | 312 | ········Built·using |
| 313 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 313 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 314 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 314 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 315 | ······</p> | 315 | ······</p> |
| 316 | <p>Copyright·©·1996-202 | 316 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 317 | ····</footer> | 317 | ····</footer> |
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| 319 | </main> | 319 | </main> |
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| 321 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 321 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 953 | ······</p> | 953 | ······</p> |
| 954 | <p>Copyright·©·1996-202 | 954 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 955 | ····</footer> | 955 | ····</footer> |
| 956 | ··</div> | 956 | ··</div> |
| 957 | </main> | 957 | </main> |
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| 959 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 959 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 1 | Zip·archive·data,·made·by·v6.1·UNIX,·extract·using·at·least·v1.0,·last·modified·Ju | 1 | Zip·archive·data,·made·by·v6.1·UNIX,·extract·using·at·least·v1.0,·last·modified·Jul·05·2026·23:53:00,·uncompressed·size·20,·method=store |
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| 653 | ······<p·class="built-using"> | 653 | ······<p·class="built-using"> |
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| 656 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 656 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 657 | ······</p> | 657 | ······</p> |
| 658 | <p>Copyright·©·1996-202 | 658 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 659 | ····</footer> | 659 | ····</footer> |
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| 663 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 663 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 137 | takeover,·configure·the·services·to·be·started·at·application·startup.·When | 137 | takeover,·configure·the·services·to·be·started·at·application·startup.·When |
| 138 | starting·the·<code·class="inline">Inets</code>·application,·the·<code·class="inline">Inets</code>·top·supervisor·starts·a·number·of | 138 | starting·the·<code·class="inline">Inets</code>·application,·the·<code·class="inline">Inets</code>·top·supervisor·starts·a·number·of |
| 139 | subsupervisors·and·worker·processes·for·handling·the·provided·services.·When | 139 | subsupervisors·and·worker·processes·for·handling·the·provided·services.·When |
| 140 | starting·services·dynamically,·new·children·are·added·to·the·supervision·tree, | 140 | starting·services·dynamically,·new·children·are·added·to·the·supervision·tree, |
| 141 | unless·the·service·is·started·with·the·standalone·option.·In·this·case·the | 141 | unless·the·service·is·started·with·the·standalone·option.·In·this·case·the |
| 142 | service·is·linked·to·the·calling·process·and·all·OTP·application·features,·such | 142 | service·is·linked·to·the·calling·process·and·all·OTP·application·features,·such |
| 143 | as·soft·upgrade,·are·lost.</p><p>Services·to·be·configured·for·startup·at·application·startup·are·to·be·put·into | 143 | as·soft·upgrade,·are·lost.</p><p>Services·to·be·configured·for·startup·at·application·startup·are·to·be·put·into |
| 144 | the·Erlang·node·configuration·file·on·the·following·form:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 144 | the·Erlang·node·configuration·file·on·the·following·form:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="8461184420-1">[</span><span·class="p"·data-group-id="8461184420-2">{</span><span·class="ss">inets</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8461184420-3">[</span><span·class="p"·data-group-id="8461184420-4">{</spa[·...·truncated·by·diffoscope;·len:·329,·SHA:·f27315d55e9b7a0d655ba59431048ca513712417b73745c72094833e5c08e24b·...·]-1">]</span><span·class="p">.</span></code></pre><p>For·details·of·what·to·put·in·the·list·of·configured·services,·see·the |
| 145 | documentation·for·the·services·to·be·configured.</p> | 145 | documentation·for·the·services·to·be·configured.</p> |
| 146 | </div> | 146 | </div> |
| 147 | <div·class="bottom-actions"·id="bottom-actions"> | 147 | <div·class="bottom-actions"·id="bottom-actions"> |
| 148 | ··<div·class="bottom-actions-item"> | 148 | ··<div·class="bottom-actions-item"> |
| 149 | ······<a·href="introduction.html"·class="bottom-actions-button"·rel="prev"> | 149 | ······<a·href="introduction.html"·class="bottom-actions-button"·rel="prev"> |
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| 193 | ······</p> | 193 | ······</p> |
| 194 | <p>Copyright·©·1996-202 | 194 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 195 | ····</footer> | 195 | ····</footer> |
| 196 | ··</div> | 196 | ··</div> |
| 197 | </main> | 197 | </main> |
| 198 | </div> | 198 | </div> |
| 199 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 199 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 190 | ······</p> | 190 | ······</p> |
| 191 | <p>Copyright·©·1996-202 | 191 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 192 | ····</footer> | 192 | ····</footer> |
| 193 | ··</div> | 193 | ··</div> |
| 194 | </main> | 194 | </main> |
| 195 | </div> | 195 | </div> |
| 196 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 196 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 405 | ······</p> | 405 | ······</p> |
| 406 | <p>Copyright·©·1996-202 | 406 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 407 | ····</footer> | 407 | ····</footer> |
| 408 | ··</div> | 408 | ··</div> |
| 409 | </main> | 409 | </main> |
| 410 | </div> | 410 | </div> |
| 411 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 411 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 1629 | ······</p> | 1629 | ······</p> |
| 1630 | <p>Copyright·©·1996-202 | 1630 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1631 | ····</footer> | 1631 | ····</footer> |
| 1632 | ··</div> | 1632 | ··</div> |
| 1633 | </main> | 1633 | </main> |
| 1634 | </div> | 1634 | </div> |
| 1635 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1635 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 448 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 448 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 449 | ······</p> | 449 | ······</p> |
| 450 | <p>Copyright·©·1996-202 | 450 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 451 | ····</footer> | 451 | ····</footer> |
| 452 | ··</div> | 452 | ··</div> |
| 453 | </main> | 453 | </main> |
| 454 | </div> | 454 | </div> |
| 455 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 455 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 771 | ······</p> | 771 | ······</p> |
| 772 | <p>Copyright·©·1996-202 | 772 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 773 | ····</footer> | 773 | ····</footer> |
| 774 | ··</div> | 774 | ··</div> |
| 775 | </main> | 775 | </main> |
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| 777 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 777 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 2513 | ······</p> | 2513 | ······</p> |
| 2514 | <p>Copyright·©·1996-202 | 2514 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 2515 | ····</footer> | 2515 | ····</footer> |
| 2516 | ··</div> | 2516 | ··</div> |
| 2517 | </main> | 2517 | </main> |
| 2518 | </div> | 2518 | </div> |
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| 145 | ······</p> | 145 | ······</p> |
| 146 | <p>Copyright·©·1996-202 | 146 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 147 | ····</footer> | 147 | ····</footer> |
| 148 | ··</div> | 148 | ··</div> |
| 149 | </main> | 149 | </main> |
| 150 | </div> | 150 | </div> |
| 151 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 151 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 128 | ········Built·using | 128 | ········Built·using |
| 129 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 129 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 130 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 130 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 131 | ······</p> | 131 | ······</p> |
| 132 | <p>Copyright·©·1996-202 | 132 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 6 | <meta·name="viewport"·content="width=device-width,·initial-scale=1"> | 6 | <meta·name="viewport"·content="width=device-width,·initial-scale=1"> |
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| 5 | <title>OtpErlangByte·(Java-Erlang·Interface·Library)</title> | 5 | <title>OtpErlangByte·(Java-Erlang·Interface·Library)</title> |
| 6 | <meta·name="viewport"·content="width=device-width,·initial-scale=1"> | 6 | <meta·name="viewport"·content="width=device-width,·initial-scale=1"> |
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| 6 | <meta·name="viewport"·content="width=device-width,·initial-scale=1"> | 6 | <meta·name="viewport"·content="width=device-width,·initial-scale=1"> |
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| 5 | <title>OtpErlangExit·(Java-Erlang·Interface·Library)</title> | 5 | <title>OtpErlangExit·(Java-Erlang·Interface·Library)</title> |
| 6 | <meta·name="viewport"·content="width=device-width,·initial-scale=1"> | 6 | <meta·name="viewport"·content="width=device-width,·initial-scale=1"> |
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| 6 | <meta·name="viewport"·content="width=device-width,·initial-scale=1"> | 6 | <meta·name="viewport"·content="width=device-width,·initial-scale=1"> |
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| 6 | <meta·name="viewport"·content="width=device-width,·initial-scale=1"> | 6 | <meta·name="viewport"·content="width=device-width,·initial-scale=1"> |
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| 5 | <title>OtpInputStream·(Java-Erlang·Interface·Library)</title> | 5 | <title>OtpInputStream·(Java-Erlang·Interface·Library)</title> |
| 6 | <meta·name="viewport"·content="width=device-width,·initial-scale=1"> | 6 | <meta·name="viewport"·content="width=device-width,·initial-scale=1"> |
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| 8 | <meta·name="dc.created"·content="202 | 8 | <meta·name="dc.created"·content="2026-07-05"> |
| 9 | <meta·name="description"·content="declaration:·package:·com.ericsson.otp.erlang,·class:·OtpInputStream"> | 9 | <meta·name="description"·content="declaration:·package:·com.ericsson.otp.erlang,·class:·OtpInputStream"> |
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| 4 | <!--·Generated·by·javadoc·(21)·on· | 4 | <!--·Generated·by·javadoc·(21)·on·Sun·Jul·05·23:53:20·GMT·2026·--> |
| 5 | <title>OtpLocalNode·(Java-Erlang·Interface·Library)</title> | 5 | <title>OtpLocalNode·(Java-Erlang·Interface·Library)</title> |
| 6 | <meta·name="viewport"·content="width=device-width,·initial-scale=1"> | 6 | <meta·name="viewport"·content="width=device-width,·initial-scale=1"> |
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| 8 | <meta·name="dc.created"·content="202 | 8 | <meta·name="dc.created"·content="2026-07-05"> |
| 9 | <meta·name="description"·content="declaration:·package:·com.ericsson.otp.erlang,·class:·OtpLocalNode"> | 9 | <meta·name="description"·content="declaration:·package:·com.ericsson.otp.erlang,·class:·OtpLocalNode"> |
| 10 | <meta·name="generator"·content="javadoc/ClassWriterImpl"> | 10 | <meta·name="generator"·content="javadoc/ClassWriterImpl"> |
| 11 | <link·rel="stylesheet"·type="text/css"·href="../../../../stylesheet.css"·title="Style"> | 11 | <link·rel="stylesheet"·type="text/css"·href="../../../../stylesheet.css"·title="Style"> |
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| 15 | <script·type="text/javascript"·src="../../../../script-dir/jquery-ui.min.js"></script> | 15 | <script·type="text/javascript"·src="../../../../script-dir/jquery-ui.min.js"></script> |
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| 1 | <!DOCTYPE·HTML> | 1 | <!DOCTYPE·HTML> |
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| 4 | <!--·Generated·by·javadoc·(21)·on· | 4 | <!--·Generated·by·javadoc·(21)·on·Sun·Jul·05·23:53:20·GMT·2026·--> |
| 5 | <title>OtpMbox·(Java-Erlang·Interface·Library)</title> | 5 | <title>OtpMbox·(Java-Erlang·Interface·Library)</title> |
| 6 | <meta·name="viewport"·content="width=device-width,·initial-scale=1"> | 6 | <meta·name="viewport"·content="width=device-width,·initial-scale=1"> |
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| 8 | <meta·name="dc.created"·content="202 | 8 | <meta·name="dc.created"·content="2026-07-05"> |
| 9 | <meta·name="description"·content="declaration:·package:·com.ericsson.otp.erlang,·class:·OtpMbox"> | 9 | <meta·name="description"·content="declaration:·package:·com.ericsson.otp.erlang,·class:·OtpMbox"> |
| 10 | <meta·name="generator"·content="javadoc/ClassWriterImpl"> | 10 | <meta·name="generator"·content="javadoc/ClassWriterImpl"> |
| 11 | <link·rel="stylesheet"·type="text/css"·href="../../../../stylesheet.css"·title="Style"> | 11 | <link·rel="stylesheet"·type="text/css"·href="../../../../stylesheet.css"·title="Style"> |
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| 15 | <script·type="text/javascript"·src="../../../../script-dir/jquery-ui.min.js"></script> | 15 | <script·type="text/javascript"·src="../../../../script-dir/jquery-ui.min.js"></script> |
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| 1 | <!DOCTYPE·HTML> | 1 | <!DOCTYPE·HTML> |
| 2 | <html·lang="en"> | 2 | <html·lang="en"> |
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| 4 | <!--·Generated·by·javadoc·(21)·on· | 4 | <!--·Generated·by·javadoc·(21)·on·Sun·Jul·05·23:53:20·GMT·2026·--> |
| 5 | <title>OtpMsg·(Java-Erlang·Interface·Library)</title> | 5 | <title>OtpMsg·(Java-Erlang·Interface·Library)</title> |
| 6 | <meta·name="viewport"·content="width=device-width,·initial-scale=1"> | 6 | <meta·name="viewport"·content="width=device-width,·initial-scale=1"> |
| 7 | <meta·http-equiv="Content-Type"·content="text/html;·charset=UTF-8"> | 7 | <meta·http-equiv="Content-Type"·content="text/html;·charset=UTF-8"> |
| 8 | <meta·name="dc.created"·content="202 | 8 | <meta·name="dc.created"·content="2026-07-05"> |
| 9 | <meta·name="description"·content="declaration:·package:·com.ericsson.otp.erlang,·class:·OtpMsg"> | 9 | <meta·name="description"·content="declaration:·package:·com.ericsson.otp.erlang,·class:·OtpMsg"> |
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| 11 | <link·rel="stylesheet"·type="text/css"·href="../../../../stylesheet.css"·title="Style"> | 11 | <link·rel="stylesheet"·type="text/css"·href="../../../../stylesheet.css"·title="Style"> |
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| 2 | <html·lang="en"> | 2 | <html·lang="en"> |
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| 4 | <!--·Generated·by·javadoc·(21)·on· | 4 | <!--·Generated·by·javadoc·(21)·on·Sun·Jul·05·23:53:20·GMT·2026·--> |
| 5 | <title>OtpNode.Acceptor·(Java-Erlang·Interface·Library)</title> | 5 | <title>OtpNode.Acceptor·(Java-Erlang·Interface·Library)</title> |
| 6 | <meta·name="viewport"·content="width=device-width,·initial-scale=1"> | 6 | <meta·name="viewport"·content="width=device-width,·initial-scale=1"> |
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| 8 | <meta·name="dc.created"·content="202 | 8 | <meta·name="dc.created"·content="2026-07-05"> |
| 9 | <meta·name="description"·content="declaration:·package:·com.ericsson.otp.erlang,·class:·OtpNode,·class:·Acceptor"> | 9 | <meta·name="description"·content="declaration:·package:·com.ericsson.otp.erlang,·class:·OtpNode,·class:·Acceptor"> |
| 10 | <meta·name="generator"·content="javadoc/ClassWriterImpl"> | 10 | <meta·name="generator"·content="javadoc/ClassWriterImpl"> |
| 11 | <link·rel="stylesheet"·type="text/css"·href="../../../../stylesheet.css"·title="Style"> | 11 | <link·rel="stylesheet"·type="text/css"·href="../../../../stylesheet.css"·title="Style"> |
| 12 | <link·rel="stylesheet"·type="text/css"·href="../../../../script-dir/jquery-ui.min.css"·title="Style"> | 12 | <link·rel="stylesheet"·type="text/css"·href="../../../../script-dir/jquery-ui.min.css"·title="Style"> |
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| 14 | <script·type="text/javascript"·src="../../../../script-dir/jquery-3.7.1.min.js"></script> | 14 | <script·type="text/javascript"·src="../../../../script-dir/jquery-3.7.1.min.js"></script> |
| 15 | <script·type="text/javascript"·src="../../../../script-dir/jquery-ui.min.js"></script> | 15 | <script·type="text/javascript"·src="../../../../script-dir/jquery-ui.min.js"></script> |
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| 1 | <!DOCTYPE·HTML> | 1 | <!DOCTYPE·HTML> |
| 2 | <html·lang="en"> | 2 | <html·lang="en"> |
| 3 | <head> | 3 | <head> |
| 4 | <!--·Generated·by·javadoc·(21)·on· | 4 | <!--·Generated·by·javadoc·(21)·on·Sun·Jul·05·23:53:20·GMT·2026·--> |
| 5 | <title>OtpNode.Mailboxes·(Java-Erlang·Interface·Library)</title> | 5 | <title>OtpNode.Mailboxes·(Java-Erlang·Interface·Library)</title> |
| 6 | <meta·name="viewport"·content="width=device-width,·initial-scale=1"> | 6 | <meta·name="viewport"·content="width=device-width,·initial-scale=1"> |
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| 8 | <meta·name="dc.created"·content="202 | 8 | <meta·name="dc.created"·content="2026-07-05"> |
| 9 | <meta·name="description"·content="declaration:·package:·com.ericsson.otp.erlang,·class:·OtpNode,·class:·Mailboxes"> | 9 | <meta·name="description"·content="declaration:·package:·com.ericsson.otp.erlang,·class:·OtpNode,·class:·Mailboxes"> |
| 10 | <meta·name="generator"·content="javadoc/ClassWriterImpl"> | 10 | <meta·name="generator"·content="javadoc/ClassWriterImpl"> |
| 11 | <link·rel="stylesheet"·type="text/css"·href="../../../../stylesheet.css"·title="Style"> | 11 | <link·rel="stylesheet"·type="text/css"·href="../../../../stylesheet.css"·title="Style"> |
| 12 | <link·rel="stylesheet"·type="text/css"·href="../../../../script-dir/jquery-ui.min.css"·title="Style"> | 12 | <link·rel="stylesheet"·type="text/css"·href="../../../../script-dir/jquery-ui.min.css"·title="Style"> |
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| 14 | <script·type="text/javascript"·src="../../../../script-dir/jquery-3.7.1.min.js"></script> | 14 | <script·type="text/javascript"·src="../../../../script-dir/jquery-3.7.1.min.js"></script> |
| 15 | <script·type="text/javascript"·src="../../../../script-dir/jquery-ui.min.js"></script> | 15 | <script·type="text/javascript"·src="../../../../script-dir/jquery-ui.min.js"></script> |
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| 2 | <html·lang="en"> | 2 | <html·lang="en"> |
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| 4 | <!--·Generated·by·javadoc·(21)·on· | 4 | <!--·Generated·by·javadoc·(21)·on·Sun·Jul·05·23:53:20·GMT·2026·--> |
| 5 | <title>OtpNode·(Java-Erlang·Interface·Library)</title> | 5 | <title>OtpNode·(Java-Erlang·Interface·Library)</title> |
| 6 | <meta·name="viewport"·content="width=device-width,·initial-scale=1"> | 6 | <meta·name="viewport"·content="width=device-width,·initial-scale=1"> |
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| 8 | <meta·name="dc.created"·content="202 | 8 | <meta·name="dc.created"·content="2026-07-05"> |
| 9 | <meta·name="description"·content="declaration:·package:·com.ericsson.otp.erlang,·class:·OtpNode"> | 9 | <meta·name="description"·content="declaration:·package:·com.ericsson.otp.erlang,·class:·OtpNode"> |
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| 11 | <link·rel="stylesheet"·type="text/css"·href="../../../../stylesheet.css"·title="Style"> | 11 | <link·rel="stylesheet"·type="text/css"·href="../../../../stylesheet.css"·title="Style"> |
| 12 | <link·rel="stylesheet"·type="text/css"·href="../../../../script-dir/jquery-ui.min.css"·title="Style"> | 12 | <link·rel="stylesheet"·type="text/css"·href="../../../../script-dir/jquery-ui.min.css"·title="Style"> |
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| 14 | <script·type="text/javascript"·src="../../../../script-dir/jquery-3.7.1.min.js"></script> | 14 | <script·type="text/javascript"·src="../../../../script-dir/jquery-3.7.1.min.js"></script> |
| 15 | <script·type="text/javascript"·src="../../../../script-dir/jquery-ui.min.js"></script> | 15 | <script·type="text/javascript"·src="../../../../script-dir/jquery-ui.min.js"></script> |
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| 2 | <html·lang="en"> | 2 | <html·lang="en"> |
| 3 | <head> | 3 | <head> |
| 4 | <!--·Generated·by·javadoc·(21)·on· | 4 | <!--·Generated·by·javadoc·(21)·on·Sun·Jul·05·23:53:20·GMT·2026·--> |
| 5 | <title>OtpNodeStatus·(Java-Erlang·Interface·Library)</title> | 5 | <title>OtpNodeStatus·(Java-Erlang·Interface·Library)</title> |
| 6 | <meta·name="viewport"·content="width=device-width,·initial-scale=1"> | 6 | <meta·name="viewport"·content="width=device-width,·initial-scale=1"> |
| 7 | <meta·http-equiv="Content-Type"·content="text/html;·charset=UTF-8"> | 7 | <meta·http-equiv="Content-Type"·content="text/html;·charset=UTF-8"> |
| 8 | <meta·name="dc.created"·content="202 | 8 | <meta·name="dc.created"·content="2026-07-05"> |
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| 11 | <link·rel="stylesheet"·type="text/css"·href="../../../../stylesheet.css"·title="Style"> | 11 | <link·rel="stylesheet"·type="text/css"·href="../../../../stylesheet.css"·title="Style"> |
| 12 | <link·rel="stylesheet"·type="text/css"·href="../../../../script-dir/jquery-ui.min.css"·title="Style"> | 12 | <link·rel="stylesheet"·type="text/css"·href="../../../../script-dir/jquery-ui.min.css"·title="Style"> |
| 13 | <script·type="text/javascript"·src="../../../../script.js"></script> | 13 | <script·type="text/javascript"·src="../../../../script.js"></script> |
| 14 | <script·type="text/javascript"·src="../../../../script-dir/jquery-3.7.1.min.js"></script> | 14 | <script·type="text/javascript"·src="../../../../script-dir/jquery-3.7.1.min.js"></script> |
| 15 | <script·type="text/javascript"·src="../../../../script-dir/jquery-ui.min.js"></script> | 15 | <script·type="text/javascript"·src="../../../../script-dir/jquery-ui.min.js"></script> |
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| 2 | <html·lang="en"> | 2 | <html·lang="en"> |
| 3 | <head> | 3 | <head> |
| 4 | <!--·Generated·by·javadoc·(21)·on· | 4 | <!--·Generated·by·javadoc·(21)·on·Sun·Jul·05·23:53:20·GMT·2026·--> |
| 5 | <title>OtpOutputStream·(Java-Erlang·Interface·Library)</title> | 5 | <title>OtpOutputStream·(Java-Erlang·Interface·Library)</title> |
| 6 | <meta·name="viewport"·content="width=device-width,·initial-scale=1"> | 6 | <meta·name="viewport"·content="width=device-width,·initial-scale=1"> |
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| 8 | <meta·name="dc.created"·content="202 | 8 | <meta·name="dc.created"·content="2026-07-05"> |
| 9 | <meta·name="description"·content="declaration:·package:·com.ericsson.otp.erlang,·class:·OtpOutputStream"> | 9 | <meta·name="description"·content="declaration:·package:·com.ericsson.otp.erlang,·class:·OtpOutputStream"> |
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| 11 | <link·rel="stylesheet"·type="text/css"·href="../../../../stylesheet.css"·title="Style"> | 11 | <link·rel="stylesheet"·type="text/css"·href="../../../../stylesheet.css"·title="Style"> |
| 12 | <link·rel="stylesheet"·type="text/css"·href="../../../../script-dir/jquery-ui.min.css"·title="Style"> | 12 | <link·rel="stylesheet"·type="text/css"·href="../../../../script-dir/jquery-ui.min.css"·title="Style"> |
| 13 | <script·type="text/javascript"·src="../../../../script.js"></script> | 13 | <script·type="text/javascript"·src="../../../../script.js"></script> |
| 14 | <script·type="text/javascript"·src="../../../../script-dir/jquery-3.7.1.min.js"></script> | 14 | <script·type="text/javascript"·src="../../../../script-dir/jquery-3.7.1.min.js"></script> |
| 15 | <script·type="text/javascript"·src="../../../../script-dir/jquery-ui.min.js"></script> | 15 | <script·type="text/javascript"·src="../../../../script-dir/jquery-ui.min.js"></script> |
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| 2 | <html·lang="en"> | 2 | <html·lang="en"> |
| 3 | <head> | 3 | <head> |
| 4 | <!--·Generated·by·javadoc·(21)·on· | 4 | <!--·Generated·by·javadoc·(21)·on·Sun·Jul·05·23:53:20·GMT·2026·--> |
| 5 | <title>OtpPeer·(Java-Erlang·Interface·Library)</title> | 5 | <title>OtpPeer·(Java-Erlang·Interface·Library)</title> |
| 6 | <meta·name="viewport"·content="width=device-width,·initial-scale=1"> | 6 | <meta·name="viewport"·content="width=device-width,·initial-scale=1"> |
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| 8 | <meta·name="dc.created"·content="202 | 8 | <meta·name="dc.created"·content="2026-07-05"> |
| 9 | <meta·name="description"·content="declaration:·package:·com.ericsson.otp.erlang,·class:·OtpPeer"> | 9 | <meta·name="description"·content="declaration:·package:·com.ericsson.otp.erlang,·class:·OtpPeer"> |
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| 3 | <head> | 3 | <head> |
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| 5 | <title>Constant·Field·Values·(Java-Erlang·Interface·Library)</title> | 5 | <title>Constant·Field·Values·(Java-Erlang·Interface·Library)</title> |
| 6 | <meta·name="viewport"·content="width=device-width,·initial-scale=1"> | 6 | <meta·name="viewport"·content="width=device-width,·initial-scale=1"> |
| 7 | <meta·http-equiv="Content-Type"·content="text/html;·charset=UTF-8"> | 7 | <meta·http-equiv="Content-Type"·content="text/html;·charset=UTF-8"> |
| 8 | <meta·name="dc.created"·content="202 | 8 | <meta·name="dc.created"·content="2026-07-05"> |
| 9 | <meta·name="description"·content="summary·of·constants"> | 9 | <meta·name="description"·content="summary·of·constants"> |
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| 12 | <link·rel="stylesheet"·type="text/css"·href="script-dir/jquery-ui.min.css"·title="Style"> | 12 | <link·rel="stylesheet"·type="text/css"·href="script-dir/jquery-ui.min.css"·title="Style"> |
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| 15 | <script·type="text/javascript"·src="script-dir/jquery-ui.min.js"></script> | 15 | <script·type="text/javascript"·src="script-dir/jquery-ui.min.js"></script> |
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| 2 | <html·lang="en"> | 2 | <html·lang="en"> |
| 3 | <head> | 3 | <head> |
| 4 | <!--·Generated·by·javadoc·(21)·on· | 4 | <!--·Generated·by·javadoc·(21)·on·Sun·Jul·05·23:53:20·GMT·2026·--> |
| 5 | <title>Deprecated·List·(Java-Erlang·Interface·Library)</title> | 5 | <title>Deprecated·List·(Java-Erlang·Interface·Library)</title> |
| 6 | <meta·name="viewport"·content="width=device-width,·initial-scale=1"> | 6 | <meta·name="viewport"·content="width=device-width,·initial-scale=1"> |
| 7 | <meta·http-equiv="Content-Type"·content="text/html;·charset=UTF-8"> | 7 | <meta·http-equiv="Content-Type"·content="text/html;·charset=UTF-8"> |
| 8 | <meta·name="dc.created"·content="202 | 8 | <meta·name="dc.created"·content="2026-07-05"> |
| 9 | <meta·name="description"·content="deprecated·elements"> | 9 | <meta·name="description"·content="deprecated·elements"> |
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| 11 | <link·rel="stylesheet"·type="text/css"·href="stylesheet.css"·title="Style"> | 11 | <link·rel="stylesheet"·type="text/css"·href="stylesheet.css"·title="Style"> |
| 12 | <link·rel="stylesheet"·type="text/css"·href="script-dir/jquery-ui.min.css"·title="Style"> | 12 | <link·rel="stylesheet"·type="text/css"·href="script-dir/jquery-ui.min.css"·title="Style"> |
| 13 | <script·type="text/javascript"·src="script.js"></script> | 13 | <script·type="text/javascript"·src="script.js"></script> |
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| 15 | <script·type="text/javascript"·src="script-dir/jquery-ui.min.js"></script> | 15 | <script·type="text/javascript"·src="script-dir/jquery-ui.min.js"></script> |
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| 2 | <html·lang="en"> | 2 | <html·lang="en"> |
| 3 | <head> | 3 | <head> |
| 4 | <!--·Generated·by·javadoc·(21)·on· | 4 | <!--·Generated·by·javadoc·(21)·on·Sun·Jul·05·23:53:20·GMT·2026·--> |
| 5 | <title>API·Help·(Java-Erlang·Interface·Library)</title> | 5 | <title>API·Help·(Java-Erlang·Interface·Library)</title> |
| 6 | <meta·name="viewport"·content="width=device-width,·initial-scale=1"> | 6 | <meta·name="viewport"·content="width=device-width,·initial-scale=1"> |
| 7 | <meta·http-equiv="Content-Type"·content="text/html;·charset=UTF-8"> | 7 | <meta·http-equiv="Content-Type"·content="text/html;·charset=UTF-8"> |
| 8 | <meta·name="dc.created"·content="202 | 8 | <meta·name="dc.created"·content="2026-07-05"> |
| 9 | <meta·name="description"·content="help"> | 9 | <meta·name="description"·content="help"> |
| 10 | <meta·name="generator"·content="javadoc/HelpWriter"> | 10 | <meta·name="generator"·content="javadoc/HelpWriter"> |
| 11 | <link·rel="stylesheet"·type="text/css"·href="stylesheet.css"·title="Style"> | 11 | <link·rel="stylesheet"·type="text/css"·href="stylesheet.css"·title="Style"> |
| 12 | <link·rel="stylesheet"·type="text/css"·href="script-dir/jquery-ui.min.css"·title="Style"> | 12 | <link·rel="stylesheet"·type="text/css"·href="script-dir/jquery-ui.min.css"·title="Style"> |
| 13 | <script·type="text/javascript"·src="script.js"></script> | 13 | <script·type="text/javascript"·src="script.js"></script> |
| 14 | <script·type="text/javascript"·src="script-dir/jquery-3.7.1.min.js"></script> | 14 | <script·type="text/javascript"·src="script-dir/jquery-3.7.1.min.js"></script> |
| 15 | <script·type="text/javascript"·src="script-dir/jquery-ui.min.js"></script> | 15 | <script·type="text/javascript"·src="script-dir/jquery-ui.min.js"></script> |
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| 2 | <html·lang="en"> | 2 | <html·lang="en"> |
| 3 | <head> | 3 | <head> |
| 4 | <!--·Generated·by·javadoc·(21)·on· | 4 | <!--·Generated·by·javadoc·(21)·on·Sun·Jul·05·23:53:20·GMT·2026·--> |
| 5 | <title>Index·(Java-Erlang·Interface·Library)</title> | 5 | <title>Index·(Java-Erlang·Interface·Library)</title> |
| 6 | <meta·name="viewport"·content="width=device-width,·initial-scale=1"> | 6 | <meta·name="viewport"·content="width=device-width,·initial-scale=1"> |
| 7 | <meta·http-equiv="Content-Type"·content="text/html;·charset=UTF-8"> | 7 | <meta·http-equiv="Content-Type"·content="text/html;·charset=UTF-8"> |
| 8 | <meta·name="dc.created"·content="202 | 8 | <meta·name="dc.created"·content="2026-07-05"> |
| 9 | <meta·name="description"·content="index"> | 9 | <meta·name="description"·content="index"> |
| 10 | <meta·name="generator"·content="javadoc/IndexWriter"> | 10 | <meta·name="generator"·content="javadoc/IndexWriter"> |
| 11 | <link·rel="stylesheet"·type="text/css"·href="stylesheet.css"·title="Style"> | 11 | <link·rel="stylesheet"·type="text/css"·href="stylesheet.css"·title="Style"> |
| 12 | <link·rel="stylesheet"·type="text/css"·href="script-dir/jquery-ui.min.css"·title="Style"> | 12 | <link·rel="stylesheet"·type="text/css"·href="script-dir/jquery-ui.min.css"·title="Style"> |
| 13 | <script·type="text/javascript"·src="script.js"></script> | 13 | <script·type="text/javascript"·src="script.js"></script> |
| 14 | <script·type="text/javascript"·src="script-dir/jquery-3.7.1.min.js"></script> | 14 | <script·type="text/javascript"·src="script-dir/jquery-3.7.1.min.js"></script> |
| 15 | <script·type="text/javascript"·src="script-dir/jquery-ui.min.js"></script> | 15 | <script·type="text/javascript"·src="script-dir/jquery-ui.min.js"></script> |
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| 2 | <html·lang="en"> | 2 | <html·lang="en"> |
| 3 | <head> | 3 | <head> |
| 4 | <!--·Generated·by·javadoc·(21)·on· | 4 | <!--·Generated·by·javadoc·(21)·on·Sun·Jul·05·23:53:20·GMT·2026·--> |
| 5 | <title>Java-Erlang·Interface·Library</title> | 5 | <title>Java-Erlang·Interface·Library</title> |
| 6 | <meta·name="viewport"·content="width=device-width,·initial-scale=1"> | 6 | <meta·name="viewport"·content="width=device-width,·initial-scale=1"> |
| 7 | <meta·http-equiv="Content-Type"·content="text/html;·charset=UTF-8"> | 7 | <meta·http-equiv="Content-Type"·content="text/html;·charset=UTF-8"> |
| 8 | <meta·name="dc.created"·content="202 | 8 | <meta·name="dc.created"·content="2026-07-05"> |
| 9 | <meta·name="description"·content="index·redirect"> | 9 | <meta·name="description"·content="index·redirect"> |
| 10 | <meta·name="generator"·content="javadoc/IndexRedirectWriter"> | 10 | <meta·name="generator"·content="javadoc/IndexRedirectWriter"> |
| 11 | <link·rel="canonical"·href="com/ericsson/otp/erlang/package-summary.html"> | 11 | <link·rel="canonical"·href="com/ericsson/otp/erlang/package-summary.html"> |
| 12 | <link·rel="stylesheet"·type="text/css"·href="stylesheet.css"·title="Style"> | 12 | <link·rel="stylesheet"·type="text/css"·href="stylesheet.css"·title="Style"> |
| 13 | <script·type="text/javascript">window.location.replace('com/ericsson/otp/erlang/package-summary.html')</script> | 13 | <script·type="text/javascript">window.location.replace('com/ericsson/otp/erlang/package-summary.html')</script> |
| 14 | <noscript> | 14 | <noscript> |
| 15 | <meta·http-equiv="Refresh"·content="0;com/ericsson/otp/erlang/package-summary.html"> | 15 | <meta·http-equiv="Refresh"·content="0;com/ericsson/otp/erlang/package-summary.html"> |
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| 2 | <html·lang="en"> | 2 | <html·lang="en"> |
| 3 | <head> | 3 | <head> |
| 4 | <!--·Generated·by·javadoc·(21)·on· | 4 | <!--·Generated·by·javadoc·(21)·on·Sun·Jul·05·23:53:20·GMT·2026·--> |
| 5 | <title>Class·Hierarchy·(Java-Erlang·Interface·Library)</title> | 5 | <title>Class·Hierarchy·(Java-Erlang·Interface·Library)</title> |
| 6 | <meta·name="viewport"·content="width=device-width,·initial-scale=1"> | 6 | <meta·name="viewport"·content="width=device-width,·initial-scale=1"> |
| 7 | <meta·http-equiv="Content-Type"·content="text/html;·charset=UTF-8"> | 7 | <meta·http-equiv="Content-Type"·content="text/html;·charset=UTF-8"> |
| 8 | <meta·name="dc.created"·content="202 | 8 | <meta·name="dc.created"·content="2026-07-05"> |
| 9 | <meta·name="description"·content="class·tree"> | 9 | <meta·name="description"·content="class·tree"> |
| 10 | <meta·name="generator"·content="javadoc/TreeWriter"> | 10 | <meta·name="generator"·content="javadoc/TreeWriter"> |
| 11 | <link·rel="stylesheet"·type="text/css"·href="stylesheet.css"·title="Style"> | 11 | <link·rel="stylesheet"·type="text/css"·href="stylesheet.css"·title="Style"> |
| 12 | <link·rel="stylesheet"·type="text/css"·href="script-dir/jquery-ui.min.css"·title="Style"> | 12 | <link·rel="stylesheet"·type="text/css"·href="script-dir/jquery-ui.min.css"·title="Style"> |
| 13 | <script·type="text/javascript"·src="script.js"></script> | 13 | <script·type="text/javascript"·src="script.js"></script> |
| 14 | <script·type="text/javascript"·src="script-dir/jquery-3.7.1.min.js"></script> | 14 | <script·type="text/javascript"·src="script-dir/jquery-3.7.1.min.js"></script> |
| 15 | <script·type="text/javascript"·src="script-dir/jquery-ui.min.js"></script> | 15 | <script·type="text/javascript"·src="script-dir/jquery-ui.min.js"></script> |
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| 2 | <html·lang="en"> | 2 | <html·lang="en"> |
| 3 | <head> | 3 | <head> |
| 4 | <!--·Generated·by·javadoc·(21)·on· | 4 | <!--·Generated·by·javadoc·(21)·on·Sun·Jul·05·23:53:20·GMT·2026·--> |
| 5 | <title>Search·(Java-Erlang·Interface·Library)</title> | 5 | <title>Search·(Java-Erlang·Interface·Library)</title> |
| 6 | <meta·name="viewport"·content="width=device-width,·initial-scale=1"> | 6 | <meta·name="viewport"·content="width=device-width,·initial-scale=1"> |
| 7 | <meta·http-equiv="Content-Type"·content="text/html;·charset=UTF-8"> | 7 | <meta·http-equiv="Content-Type"·content="text/html;·charset=UTF-8"> |
| 8 | <meta·name="dc.created"·content="202 | 8 | <meta·name="dc.created"·content="2026-07-05"> |
| 9 | <meta·name="description"·content="search"> | 9 | <meta·name="description"·content="search"> |
| 10 | <meta·name="generator"·content="javadoc/SearchWriter"> | 10 | <meta·name="generator"·content="javadoc/SearchWriter"> |
| 11 | <link·rel="stylesheet"·type="text/css"·href="stylesheet.css"·title="Style"> | 11 | <link·rel="stylesheet"·type="text/css"·href="stylesheet.css"·title="Style"> |
| 12 | <link·rel="stylesheet"·type="text/css"·href="script-dir/jquery-ui.min.css"·title="Style"> | 12 | <link·rel="stylesheet"·type="text/css"·href="script-dir/jquery-ui.min.css"·title="Style"> |
| 13 | <script·type="text/javascript"·src="script.js"></script> | 13 | <script·type="text/javascript"·src="script.js"></script> |
| 14 | <script·type="text/javascript"·src="script-dir/jquery-3.7.1.min.js"></script> | 14 | <script·type="text/javascript"·src="script-dir/jquery-3.7.1.min.js"></script> |
| 15 | <script·type="text/javascript"·src="script-dir/jquery-ui.min.js"></script> | 15 | <script·type="text/javascript"·src="script-dir/jquery-ui.min.js"></script> |
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| 2 | <html·lang="en"> | 2 | <html·lang="en"> |
| 3 | <head> | 3 | <head> |
| 4 | <!--·Generated·by·javadoc·(21)·on· | 4 | <!--·Generated·by·javadoc·(21)·on·Sun·Jul·05·23:53:20·GMT·2026·--> |
| 5 | <title>Serialized·Form·(Java-Erlang·Interface·Library)</title> | 5 | <title>Serialized·Form·(Java-Erlang·Interface·Library)</title> |
| 6 | <meta·name="viewport"·content="width=device-width,·initial-scale=1"> | 6 | <meta·name="viewport"·content="width=device-width,·initial-scale=1"> |
| 7 | <meta·http-equiv="Content-Type"·content="text/html;·charset=UTF-8"> | 7 | <meta·http-equiv="Content-Type"·content="text/html;·charset=UTF-8"> |
| 8 | <meta·name="dc.created"·content="202 | 8 | <meta·name="dc.created"·content="2026-07-05"> |
| 9 | <meta·name="description"·content="serialized·forms"> | 9 | <meta·name="description"·content="serialized·forms"> |
| 10 | <meta·name="generator"·content="javadoc/SerializedFormWriterImpl"> | 10 | <meta·name="generator"·content="javadoc/SerializedFormWriterImpl"> |
| 11 | <link·rel="stylesheet"·type="text/css"·href="stylesheet.css"·title="Style"> | 11 | <link·rel="stylesheet"·type="text/css"·href="stylesheet.css"·title="Style"> |
| 12 | <link·rel="stylesheet"·type="text/css"·href="script-dir/jquery-ui.min.css"·title="Style"> | 12 | <link·rel="stylesheet"·type="text/css"·href="script-dir/jquery-ui.min.css"·title="Style"> |
| 13 | <script·type="text/javascript"·src="script.js"></script> | 13 | <script·type="text/javascript"·src="script.js"></script> |
| 14 | <script·type="text/javascript"·src="script-dir/jquery-3.7.1.min.js"></script> | 14 | <script·type="text/javascript"·src="script-dir/jquery-3.7.1.min.js"></script> |
| 15 | <script·type="text/javascript"·src="script-dir/jquery-ui.min.js"></script> | 15 | <script·type="text/javascript"·src="script-dir/jquery-ui.min.js"></script> |
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| 418 | ······<p·class="built-using"> | 418 | ······<p·class="built-using"> |
| 419 | ········Built·using | 419 | ········Built·using |
| 420 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 420 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 421 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 421 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 422 | ······</p> | 422 | ······</p> |
| 423 | <p>Copyright·©·1996-202 | 423 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 424 | ····</footer> | 424 | ····</footer> |
| 425 | ··</div> | 425 | ··</div> |
| 426 | </main> | 426 | </main> |
| 427 | </div> | 427 | </div> |
| 428 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 428 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 842 | ······<p·class="built-using"> | 842 | ······<p·class="built-using"> |
| 843 | ········Built·using | 843 | ········Built·using |
| 844 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 844 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 845 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 845 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 846 | ······</p> | 846 | ······</p> |
| 847 | <p>Copyright·©·1996-202 | 847 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 848 | ····</footer> | 848 | ····</footer> |
| 849 | ··</div> | 849 | ··</div> |
| 850 | </main> | 850 | </main> |
| 851 | </div> | 851 | </div> |
| 852 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 852 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 853 | ··<script> | 853 | ··<script> |
| 854 | ··let·initialized·=·false; | 854 | ··let·initialized·=·false; |
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| 127 | ······<p·class="built-using"> | 127 | ······<p·class="built-using"> |
| 128 | ········Built·using | 128 | ········Built·using |
| 129 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 129 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 130 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 130 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 131 | ······</p> | 131 | ······</p> |
| 132 | <p>Copyright·©·1996-202 | 132 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 133 | ····</footer> | 133 | ····</footer> |
| 134 | ··</div> | 134 | ··</div> |
| 135 | </main> | 135 | </main> |
| 136 | </div> | 136 | </div> |
| 137 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 137 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 138 | ··<script> | 138 | ··<script> |
| 139 | ··let·initialized·=·false; | 139 | ··let·initialized·=·false; |
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| 143 | ······<p·class="built-using"> | 143 | ······<p·class="built-using"> |
| 144 | ········Built·using | 144 | ········Built·using |
| 145 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 145 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 146 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 146 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 147 | ······</p> | 147 | ······</p> |
| 148 | <p>Copyright·©·1996-202 | 148 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 149 | ····</footer> | 149 | ····</footer> |
| 150 | ··</div> | 150 | ··</div> |
| 151 | </main> | 151 | </main> |
| 152 | </div> | 152 | </div> |
| 153 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 153 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 154 | ··<script> | 154 | ··<script> |
| 155 | ··let·initialized·=·false; | 155 | ··let·initialized·=·false; |
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| 499 | ······<p·class="built-using"> | 499 | ······<p·class="built-using"> |
| 500 | ········Built·using | 500 | ········Built·using |
| 501 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 501 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 502 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 502 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 503 | ······</p> | 503 | ······</p> |
| 504 | <p>Copyright·©·1996-202 | 504 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 505 | ····</footer> | 505 | ····</footer> |
| 506 | ··</div> | 506 | ··</div> |
| 507 | </main> | 507 | </main> |
| 508 | </div> | 508 | </div> |
| 509 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 509 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 510 | ··<script> | 510 | ··<script> |
| 511 | ··let·initialized·=·false; | 511 | ··let·initialized·=·false; |
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| 140 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 140 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 141 | ··</a> | 141 | ··</a> |
| 142 | ··<span·class="text">File·Syntax</span> | 142 | ··<span·class="text">File·Syntax</span> |
| 143 | </h2> | 143 | </h2> |
| 144 | <p>The·application·resource·file·is·to·be·called·<code·class="inline">Application.app</code>,·where | 144 | <p>The·application·resource·file·is·to·be·called·<code·class="inline">Application.app</code>,·where |
| 145 | <code·class="inline">Application</code>·is·the·application·name.·The·file·is·to·be·located·in·directory | 145 | <code·class="inline">Application</code>·is·the·application·name.·The·file·is·to·be·located·in·directory |
| 146 | <code·class="inline">ebin</code>·for·the·application.</p><p>The·file·must·contain·a·single·Erlang·term,·which·is·called·an·<em>application | 146 | <code·class="inline">ebin</code>·for·the·application.</p><p>The·file·must·contain·a·single·Erlang·term,·which·is·called·an·<em>application |
| 147 | specification</em>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 147 | specification</em>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="4293536664-1">{</span><span·class="ss">application</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Application</span><span·class="p">,</span><span·class="w"> |
| 148 | ··</span><span·class="p"·data-group-id=" | 148 | ··</span><span·class="p"·data-group-id="4293536664-2">[</span><span·class="p"·data-group-id="4293536664-3">{</span><span·class="ss">description</span><span·class="p">,</span><span·class="w">··</span><span·class="n">Description</span><span·class="p"·data-group-id="4293536664-3">}</span><span·class="p">,</span><span·class="w"> |
| 149 | ···</span><span·class="p"·data-group-id=" | 149 | ···</span><span·class="p"·data-group-id="4293536664-4">{</span><span·class="ss">id</span><span·class="p">,</span><span·class="w">···········</span><span·class="n">Id</span><span·class="p"·data-group-id="4293536664-4">}</span><span·class="p">,</span><span·class="w"> |
| 150 | ···</span><span·class="p"·data-group-id=" | 150 | ···</span><span·class="p"·data-group-id="4293536664-5">{</span><span·class="ss">vsn</span><span·class="p">,</span><span·class="w">··········</span><span·class="n">Vsn</span><span·class="p"·data-group-id="4293536664-5">}</span><span·class="p">,</span><span·class="w"> |
| 151 | ···</span><span·class="p"·data-group-id=" | 151 | ···</span><span·class="p"·data-group-id="4293536664-6">{</span><span·class="ss">modules</span><span·class="p">,</span><span·class="w">······</span><span·class="n">Modules</span><span·class="p"·data-group-id="4293536664-6">}</span><span·class="p">,</span><span·class="w"> |
| 152 | ···</span><span·class="p"·data-group-id=" | 152 | ···</span><span·class="p"·data-group-id="4293536664-7">{</span><span·class="ss">maxP</span><span·class="p">,</span><span·class="w">·········</span><span·class="n">MaxP</span><span·class="p"·data-group-id="4293536664-7">}</span><span·class="p">,</span><span·class="w"> |
| 153 | ···</span><span·class="p"·data-group-id=" | 153 | ···</span><span·class="p"·data-group-id="4293536664-8">{</span><span·class="ss">maxT</span><span·class="p">,</span><span·class="w">·········</span><span·class="n">MaxT</span><span·class="p"·data-group-id="4293536664-8">}</span><span·class="p">,</span><span·class="w"> |
| 154 | ···</span><span·class="p"·data-group-id=" | 154 | ···</span><span·class="p"·data-group-id="4293536664-9">{</span><span·class="ss">registered</span><span·class="p">,</span><span·class="w">···</span><span·class="n">Names</span><span·class="p"·data-group-id="4293536664-9">}</span><span·class="p">,</span><span·class="w"> |
| 155 | ···</span><span·class="p"·data-group-id=" | 155 | ···</span><span·class="p"·data-group-id="4293536664-10">{</span><span·class="ss">included_applications</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Apps</span><span·class="p"·data-group-id="4293536664-10">}</span><span·class="p">,</span><span·class="w"> |
| 156 | ···</span><span·class="p"·data-group-id=" | 156 | ···</span><span·class="p"·data-group-id="4293536664-11">{</span><span·class="ss">optional_applications</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Apps</span><span·class="p"·data-group-id="4293536664-11">}</span><span·class="p">,</span><span·class="w"> |
| 157 | ···</span><span·class="p"·data-group-id=" | 157 | ···</span><span·class="p"·data-group-id="4293536664-12">{</span><span·class="ss">applications</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Apps</span><span·class="p"·data-group-id="4293536664-12">}</span><span·class="p">,</span><span·class="w"> |
| 158 | ···</span><span·class="p"·data-group-id=" | 158 | ···</span><span·class="p"·data-group-id="4293536664-13">{</span><span·class="ss">env</span><span·class="p">,</span><span·class="w">··········</span><span·class="n">Env</span><span·class="p"·data-group-id="4293536664-13">}</span><span·class="p">,</span><span·class="w"> |
| 159 | ···</span><span·class="p"·data-group-id=" | 159 | ···</span><span·class="p"·data-group-id="4293536664-14">{</span><span·class="ss">mod</span><span·class="p">,</span><span·class="w">··········</span><span·class="n">Start</span><span·class="p"·data-group-id="4293536664-14">}</span><span·class="p">,</span><span·class="w"> |
| 160 | ···</span><span·class="p"·data-group-id=" | 160 | ···</span><span·class="p"·data-group-id="4293536664-15">{</span><span·class="ss">start_phases</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Phases</span><span·class="p"·data-group-id="4293536664-15">}</span><span·class="p">,</span><span·class="w"> |
| 161 | ···</span><span·class="p"·data-group-id=" | 161 | ···</span><span·class="p"·data-group-id="4293536664-16">{</span><span·class="ss">runtime_dependencies</span><span·class="p">,</span><span·class="w">·</span><span·class="n">RTDeps</span><span·class="p"·data-group-id="4293536664-16">}</span><span·class="p"·data-group-id="4293536664-2">]</span><span[·...·truncated·by·diffoscope;·len:·36,·SHA:·1d6a7eab3300e93776667ccc88e6e2ed6fde1c7cc2d448b196dc0a0dcc7e06cb·...·]-1">}</span><span·class="p">.</span><span·class="w"> |
| 162 | ·············</span><span·class="n">Value</span><span·class="w">················</span><span·class="n">Default</span><span·class="w"> | 162 | ·············</span><span·class="n">Value</span><span·class="w">················</span><span·class="n">Default</span><span·class="w"> |
| 163 | ·············</span><span·class="o">--</span><span·class="o">--</span><span·class="o">-</span><span·class="w">················</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">-</span><span·class="w"> | 163 | ·············</span><span·class="o">--</span><span·class="o">--</span><span·class="o">-</span><span·class="w">················</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">-</span><span·class="w"> |
| 164 | </span><span·class="n">Application</span><span·class="w">··</span><span·class="nf">atom</span><span·class="p"·data-group-id=" | 164 | </span><span·class="n">Application</span><span·class="w">··</span><span·class="nf">atom</span><span·class="p"·data-group-id="4293536664-17">(</span><span·class="p"·data-group-id="4293536664-17">)</span><span·class="w">···············</span><span·class="o">-</span><span·class="w"> |
| 165 | </span><span·class="n">Description</span><span·class="w">··</span><span·class="nf">string</span><span·class="p"·data-group-id=" | 165 | </span><span·class="n">Description</span><span·class="w">··</span><span·class="nf">string</span><span·class="p"·data-group-id="4293536664-18">(</span><span·class="p"·data-group-id="4293536664-18">)</span><span·class="w">·············</span><span·class="s">""</span><span·class="w"> |
| 166 | </span><span·class="n">Id</span><span·class="w">···········</span><span·class="nf">string</span><span·class="p"·data-group-id=" | 166 | </span><span·class="n">Id</span><span·class="w">···········</span><span·class="nf">string</span><span·class="p"·data-group-id="4293536664-19">(</span><span·class="p"·data-group-id="4293536664-19">)</span><span·class="w">·············</span><span·class="s">""</span><span·class="w"> |
| 167 | </span><span·class="n">Vsn</span><span·class="w">··········</span><span·class="nf">string</span><span·class="p"·data-group-id=" | 167 | </span><span·class="n">Vsn</span><span·class="w">··········</span><span·class="nf">string</span><span·class="p"·data-group-id="4293536664-20">(</span><span·class="p"·data-group-id="4293536664-20">)</span><span·class="w">·············</span><span·class="s">""</span><span·class="w"> |
| 168 | </span><span·class="n">Modules</span><span·class="w">······</span><span·class="p"·data-group-id=" | 168 | </span><span·class="n">Modules</span><span·class="w">······</span><span·class="p"·data-group-id="4293536664-21">[</span><span·class="n">Module</span><span·class="p"·data-group-id="4293536664-21">]</span><span·class="w">·············</span><span·class="p"·data-group-id="4293536664-22">[</span><span·class="p"·data-group-id="4293536664-22">]</span><span·class="w"> |
| 169 | </span><span·class="n">MaxP</span><span·class="w">·········</span><span·class="nf">int</span><span·class="p"·data-group-id=" | 169 | </span><span·class="n">MaxP</span><span·class="w">·········</span><span·class="nf">int</span><span·class="p"·data-group-id="4293536664-23">(</span><span·class="p"·data-group-id="4293536664-23">)</span><span·class="w">················</span><span·class="ss">infinity</span><span·class="w"> |
| 170 | </span><span·class="n">MaxT</span><span·class="w">·········</span><span·class="nf">int</span><span·class="p"·data-group-id=" | 170 | </span><span·class="n">MaxT</span><span·class="w">·········</span><span·class="nf">int</span><span·class="p"·data-group-id="4293536664-24">(</span><span·class="p"·data-group-id="4293536664-24">)</span><span·class="w">················</span><span·class="ss">infinity</span><span·class="w"> |
| 171 | </span><span·class="n">Names</span><span·class="w">········</span><span·class="p"·data-group-id=" | 171 | </span><span·class="n">Names</span><span·class="w">········</span><span·class="p"·data-group-id="4293536664-25">[</span><span·class="n">Name</span><span·class="p"·data-group-id="4293536664-25">]</span><span·class="w">···············</span><span·class="p"·data-group-id="4293536664-26">[</span><span·class="p"·data-group-id="4293536664-26">]</span><span·class="w"> |
| 172 | </span><span·class="n">Apps</span><span·class="w">·········</span><span·class="p"·data-group-id=" | 172 | </span><span·class="n">Apps</span><span·class="w">·········</span><span·class="p"·data-group-id="4293536664-27">[</span><span·class="n">App</span><span·class="p"·data-group-id="4293536664-27">]</span><span·class="w">················</span><span·class="p"·data-group-id="4293536664-28">[</span><span·class="p"·data-group-id="4293536664-28">]</span><span·class="w"> |
| 173 | </span><span·class="n">Env</span><span·class="w">··········</span><span·class="p"·data-group-id=" | 173 | </span><span·class="n">Env</span><span·class="w">··········</span><span·class="p"·data-group-id="4293536664-29">[</span><span·class="p"·data-group-id="4293536664-30">{</span><span·class="n">Par</span><span·class="p">,</span><span·class="n">Val</span><span·class="p"·data-group-id="4293536664-30">}</span><span·class="p"·data-group-id="4293536664-29">]</[·...·truncated·by·diffoscope;·len:·133,·SHA:·93812a54f8a0438a923f04a4e750cd16de9f83aa9c696e3171de73e69bd15236·...·]-31">]</span><span·class="w"> |
| 174 | </span><span·class="n">Start</span><span·class="w">········</span><span·class="p"·data-group-id=" | 174 | </span><span·class="n">Start</span><span·class="w">········</span><span·class="p"·data-group-id="4293536664-32">{</span><span·class="n">Module</span><span·class="p">,</span><span·class="n">StartArgs</span><span·class="p"·data-group-id="4293536664-32">}</span><span·class="w">···</span><span·class="p"·data-group-id="4293536664-33">[</span><span·class="p[·...·truncated·by·diffoscope;·len:·27,·SHA:·0eab650a6d664cc9ee0668a828fd6de6be0726ff6d39873ed45a961750642e4b·...·]-33">]</span><span·class="w"> |
| 175 | </span><span·class="n">Phases</span><span·class="w">·······</span><span·class="p"·data-group-id=" | 175 | </span><span·class="n">Phases</span><span·class="w">·······</span><span·class="p"·data-group-id="4293536664-34">[</span><span·class="p"·data-group-id="4293536664-35">{</span><span·class="n">Phase</span><span·class="p">,</span><span·class="n">PhaseArgs</span><span·class="p"·data-group-id="4293536664-35">}</span><span·class="p"·data-group-id="4293536664-34">]</span><span·class="w">··</span><span·class="ss">undefined</span><span·class="w"> |
| 176 | </span><span·class="n">RTDeps</span><span·class="w">·······</span><span·class="p"·data-group-id=" | 176 | </span><span·class="n">RTDeps</span><span·class="w">·······</span><span·class="p"·data-group-id="4293536664-36">[</span><span·class="n">ApplicationVersion</span><span·class="p"·data-group-id="4293536664-36">]</span><span·class="w">·</span><span·class="p"·data-group-id="4293536664-37">[</span><span·class="p"·data-group-id="4293536664-37">]</span><span·class="w"> |
| 177 | </span><span·class="n">Module</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">Name</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">App</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">Par</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">Phase</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">atom</span><span·class="p"·data-group-id=" | 177 | </span><span·class="n">Module</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">Name</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">App</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">Par</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">Phase</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">atom</span><span·class="p"·data-group-id="4293536664-38">(</span><span·class="p"·data-group-id="4293536664-38">)</span><span·class="w"> |
| 178 | </span><span·class="n">Val</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">StartArgs</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">PhaseArgs</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">term</span><span·class="p"·data-group-id=" | 178 | </span><span·class="n">Val</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">StartArgs</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">PhaseArgs</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">term</span><span·class="p"·data-group-id="4293536664-39">(</span><span·class="p"·data-group-id="4293536664-39">)</span><span·class="w"> |
| 179 | </span><span·class="n">ApplicationVersion</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">string</span><span·class="p"·data-group-id=" | 179 | </span><span·class="n">ApplicationVersion</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">string</span><span·class="p"·data-group-id="4293536664-40">(</span><span·class="p"·data-group-id="4293536664-40">)</span></code></pre><ul><li><strong><code·class="inline">Application</code></strong>·-·Application·name.</li></ul><p>For·the·application·controller,·all·keys·are·optional.·The·respective·default |
| 180 | values·are·used·for·any·omitted·keys.</p><p>The·functions·in·<code·class="inline">systools</code>·require·more·information.·If·they·are·used,·the | 180 | values·are·used·for·any·omitted·keys.</p><p>The·functions·in·<code·class="inline">systools</code>·require·more·information.·If·they·are·used,·the |
| 181 | following·keys·are·mandatory:</p><ul><li><code·class="inline">description</code></li><li><code·class="inline">vsn</code></li><li><code·class="inline">modules</code></li><li><code·class="inline">registered</code></li><li><code·class="inline">applications</code></li></ul><p>The·other·keys·are·ignored·by·<code·class="inline">systools</code>.</p><ul><li><p><strong><code·class="inline">description</code></strong>·-·A·one-line·description·of·the·application.</p></li><li><p><strong><code·class="inline">id</code></strong>·-·Product·identification,·or·similar.</p></li><li><p><strong><code·class="inline">vsn</code></strong>·-·Version·of·the·application.</p></li><li><p><strong><code·class="inline">modules</code></strong>·-·All·modules·introduced·by·this·application.·<code·class="inline">systools</code>·uses | 181 | following·keys·are·mandatory:</p><ul><li><code·class="inline">description</code></li><li><code·class="inline">vsn</code></li><li><code·class="inline">modules</code></li><li><code·class="inline">registered</code></li><li><code·class="inline">applications</code></li></ul><p>The·other·keys·are·ignored·by·<code·class="inline">systools</code>.</p><ul><li><p><strong><code·class="inline">description</code></strong>·-·A·one-line·description·of·the·application.</p></li><li><p><strong><code·class="inline">id</code></strong>·-·Product·identification,·or·similar.</p></li><li><p><strong><code·class="inline">vsn</code></strong>·-·Version·of·the·application.</p></li><li><p><strong><code·class="inline">modules</code></strong>·-·All·modules·introduced·by·this·application.·<code·class="inline">systools</code>·uses |
| 182 | this·list·when·generating·start·scripts·and·tar·files.·A·module·can·only·be | 182 | this·list·when·generating·start·scripts·and·tar·files.·A·module·can·only·be |
| 183 | defined·in·one·application.</p></li><li><p><strong><code·class="inline">maxP</code></strong>·-·<em>Deprecated·-·is·ignored</em></p><p>Maximum·number·of·processes·allowed·in·the·application.</p></li><li><p><strong><code·class="inline">maxT</code></strong>·-·Maximum·time,·in·milliseconds,·that·the·application·is·allowed·to | 183 | defined·in·one·application.</p></li><li><p><strong><code·class="inline">maxP</code></strong>·-·<em>Deprecated·-·is·ignored</em></p><p>Maximum·number·of·processes·allowed·in·the·application.</p></li><li><p><strong><code·class="inline">maxT</code></strong>·-·Maximum·time,·in·milliseconds,·that·the·application·is·allowed·to |
| 184 | run.·After·the·specified·time,·the·application·terminates·automatically.</p></li><li><p><strong><code·class="inline">registered</code></strong>·-·All·names·of·registered·processes·started·in·this | 184 | run.·After·the·specified·time,·the·application·terminates·automatically.</p></li><li><p><strong><code·class="inline">registered</code></strong>·-·All·names·of·registered·processes·started·in·this |
| 185 | application.·<code·class="inline">systools</code>·uses·this·list·to·detect·name·clashes·between | 185 | application.·<code·class="inline">systools</code>·uses·this·list·to·detect·name·clashes·between |
| 186 | different·applications.</p></li><li><p><strong><code·class="inline">included_applications</code></strong>·-·All·applications·included·by·this·application. | 186 | different·applications.</p></li><li><p><strong><code·class="inline">included_applications</code></strong>·-·All·applications·included·by·this·application. |
| Offset 207, 15 lines modified | Offset 207, 15 lines modified | ||
| 207 | be·omitted·for·applications·without·processes,·typically·code·libraries,·for | 207 | be·omitted·for·applications·without·processes,·typically·code·libraries,·for |
| 208 | example,·STDLIB.</p></li><li><p><strong><code·class="inline">start_phases</code></strong>·-·A·list·of·start·phases·and·corresponding·start·arguments | 208 | example,·STDLIB.</p></li><li><p><strong><code·class="inline">start_phases</code></strong>·-·A·list·of·start·phases·and·corresponding·start·arguments |
| 209 | for·the·application.·If·this·key·is·present,·the·application·master,·in | 209 | for·the·application.·If·this·key·is·present,·the·application·master,·in |
| 210 | addition·to·the·usual·call·to·<code·class="inline">Module:start/2</code>,·also·calls | 210 | addition·to·the·usual·call·to·<code·class="inline">Module:start/2</code>,·also·calls |
| 211 | <code·class="inline">Module:start_phase(Phase,Type,PhaseArgs)</code>·for·each·start·phase·defined·by·key | 211 | <code·class="inline">Module:start_phase(Phase,Type,PhaseArgs)</code>·for·each·start·phase·defined·by·key |
| 212 | <code·class="inline">start_phases</code>.·Only·after·this·extended·start·procedure, | 212 | <code·class="inline">start_phases</code>.·Only·after·this·extended·start·procedure, |
| 213 | <code·class="inline">application:start(Application)</code>·returns.</p><p>Start·phases·can·be·used·to·synchronize·startup·of·an·application·and·its | 213 | <code·class="inline">application:start(Application)</code>·returns.</p><p>Start·phases·can·be·used·to·synchronize·startup·of·an·application·and·its |
| 214 | included·applications.·In·this·case,·key·<code·class="inline">mod</code>·must·be·specified·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 214 | included·applications.·In·this·case,·key·<code·class="inline">mod</code>·must·be·specified·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="0363217480-1">{</span><span·class="ss">mod</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0363217480-2">{</span><span·class="ss">application_starter</span><span·class="p">,</span><span·class="p"·data-group-id="03632174[·...·truncated·by·diffoscope;·len:·246,·SHA:·ac2567ae1d23d2f7d1e57bbdbe3f041214a3dc655c5628db5c43e3743c30f8a8·...·]-1">}</span></code></pre><p>The·application·master·then·calls·<code·class="inline">Module:start/2</code>·for·the·primary |
| 215 | application,·followed·by·calls·to·<code·class="inline">Module:start_phase/3</code>·for·each·start·phase | 215 | application,·followed·by·calls·to·<code·class="inline">Module:start_phase/3</code>·for·each·start·phase |
| 216 | (as·defined·for·the·primary·application),·both·for·the·primary·application·and | 216 | (as·defined·for·the·primary·application),·both·for·the·primary·application·and |
| 217 | for·each·of·its·included·applications,·for·which·the·start·phase·is·defined.</p><p>This·implies·that·for·an·included·application,·the·set·of·start·phases·must·be | 217 | for·each·of·its·included·applications,·for·which·the·start·phase·is·defined.</p><p>This·implies·that·for·an·included·application,·the·set·of·start·phases·must·be |
| 218 | a·subset·of·the·set·of·phases·defined·for·the·primary·application.·For·more | 218 | a·subset·of·the·set·of·phases·defined·for·the·primary·application.·For·more |
| 219 | information,·see·<a·href="../../../../doc/system/applications.html"><em>Applications</em>·in·<em>OTP·Design·Principles</em></a>.</p></li><li><p><strong><code·class="inline"·id="runtime_dependencies">runtime_dependencies</code></strong>·-·A·list·of·application | 219 | information,·see·<a·href="../../../../doc/system/applications.html"><em>Applications</em>·in·<em>OTP·Design·Principles</em></a>.</p></li><li><p><strong><code·class="inline"·id="runtime_dependencies">runtime_dependencies</code></strong>·-·A·list·of·application |
| 220 | versions·that·the·application·depends·on.·An·example·of·such·an·application | 220 | versions·that·the·application·depends·on.·An·example·of·such·an·application |
| 221 | version·is·<code·class="inline">"kernel-3.0"</code>.·Application·versions·specified·as·runtime | 221 | version·is·<code·class="inline">"kernel-3.0"</code>.·Application·versions·specified·as·runtime |
| Offset 280, 15 lines modified | Offset 280, 15 lines modified | ||
| 280 | ······<p·class="built-using"> | 280 | ······<p·class="built-using"> |
| 281 | ········Built·using | 281 | ········Built·using |
| 282 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 282 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 283 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 283 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 284 | ······</p> | 284 | ······</p> |
| 285 | <p>Copyright·©·1996-202 | 285 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 286 | ····</footer> | 286 | ····</footer> |
| 287 | ··</div> | 287 | ··</div> |
| 288 | </main> | 288 | </main> |
| 289 | </div> | 289 | </div> |
| 290 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 290 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 291 | ··<script> | 291 | ··<script> |
| 292 | ··let·initialized·=·false; | 292 | ··let·initialized·=·false; |
| Offset 1591, 15 lines modified | Offset 1591, 15 lines modified | ||
| 1591 | distributed.·The·argument·overrides·the·value·for·the·application·in·the·Kernel | 1591 | distributed.·The·argument·overrides·the·value·for·the·application·in·the·Kernel |
| 1592 | configuration·parameter·<code·class="inline">distributed</code>.·<code·class="inline">Application</code>·must·be·the·application | 1592 | configuration·parameter·<code·class="inline">distributed</code>.·<code·class="inline">Application</code>·must·be·the·application |
| 1593 | name·(same·as·in·the·first·argument).·If·a·node·crashes·and·<code·class="inline">Time</code>·is·specified, | 1593 | name·(same·as·in·the·first·argument).·If·a·node·crashes·and·<code·class="inline">Time</code>·is·specified, |
| 1594 | the·application·controller·waits·for·<code·class="inline">Time</code>·milliseconds·before·attempting·to | 1594 | the·application·controller·waits·for·<code·class="inline">Time</code>·milliseconds·before·attempting·to |
| 1595 | restart·the·application·on·another·node.·If·<code·class="inline">Time</code>·is·not·specified,·it·defaults | 1595 | restart·the·application·on·another·node.·If·<code·class="inline">Time</code>·is·not·specified,·it·defaults |
| 1596 | to·<code·class="inline">0</code>·and·the·application·is·restarted·immediately.</p><p><code·class="inline">Nodes</code>·is·a·list·of·node·names·where·the·application·can·run,·in·priority·from | 1596 | to·<code·class="inline">0</code>·and·the·application·is·restarted·immediately.</p><p><code·class="inline">Nodes</code>·is·a·list·of·node·names·where·the·application·can·run,·in·priority·from |
| 1597 | left·to·right.·Node·names·can·be·grouped·using·tuples·to·indicate·that·they·have | 1597 | left·to·right.·Node·names·can·be·grouped·using·tuples·to·indicate·that·they·have |
| 1598 | the·same·priority.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Nodes</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 1598 | the·same·priority.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Nodes</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="1857327545-1">[</span><span·class="ss">cp1@cave</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1857327545-2">{</span><span·class="ss">cp2@cave</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">cp3@[·...·truncated·by·diffoscope;·len:·105,·SHA:·23253e261d1884d9468a38cc49c02b5c34d8d5d96ed65fbe1d82bda85b8d1e36·...·]-1">]</span></code></pre><p>This·means·that·the·application·is·preferably·to·be·started·at·<code·class="inline">cp1@cave</code>.·If |
| 1599 | <code·class="inline">cp1@cave</code>·is·down,·the·application·is·to·be·started·at·<code·class="inline">cp2@cave</code>·or | 1599 | <code·class="inline">cp1@cave</code>·is·down,·the·application·is·to·be·started·at·<code·class="inline">cp2@cave</code>·or |
| 1600 | <code·class="inline">cp3@cave</code>.</p><p>If·<code·class="inline">Distributed·==·default</code>,·the·value·for·the·application·in·the·Kernel | 1600 | <code·class="inline">cp3@cave</code>.</p><p>If·<code·class="inline">Distributed·==·default</code>,·the·value·for·the·application·in·the·Kernel |
| 1601 | configuration·parameter·<code·class="inline">distributed</code>·is·used.</p> | 1601 | configuration·parameter·<code·class="inline">distributed</code>·is·used.</p> |
| 1602 | ··</section> | 1602 | ··</section> |
| 1603 | </section> | 1603 | </section> |
| 1604 | <section·class="detail"·id="loaded_applications/0"> | 1604 | <section·class="detail"·id="loaded_applications/0"> |
| Offset 2177, 15 lines modified | Offset 2177, 15 lines modified | ||
| 2177 | ······<p·class="built-using"> | 2177 | ······<p·class="built-using"> |
| 2178 | ········Built·using | 2178 | ········Built·using |
| 2179 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 2179 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 2180 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 2180 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 2181 | ······</p> | 2181 | ······</p> |
| 2182 | <p>Copyright·©·1996-202 | 2182 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 2183 | ····</footer> | 2183 | ····</footer> |
| 2184 | ··</div> | 2184 | ··</div> |
| 2185 | </main> | 2185 | </main> |
| 2186 | </div> | 2186 | </div> |
| 2187 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 2187 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 2188 | ··<script> | 2188 | ··<script> |
| 2189 | ··let·initialized·=·false; | 2189 | ··let·initialized·=·false; |
| Offset 457, 15 lines modified | Offset 457, 15 lines modified | ||
| 457 | ······<p·class="built-using"> | 457 | ······<p·class="built-using"> |
| 458 | ········Built·using | 458 | ········Built·using |
| 459 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 459 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 460 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 460 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 461 | ······</p> | 461 | ······</p> |
| 462 | <p>Copyright·©·1996-202 | 462 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 463 | ····</footer> | 463 | ····</footer> |
| 464 | ··</div> | 464 | ··</div> |
| 465 | </main> | 465 | </main> |
| 466 | </div> | 466 | </div> |
| 467 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 467 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 468 | ··<script> | 468 | ··<script> |
| 469 | ··let·initialized·=·false; | 469 | ··let·initialized·=·false; |
| Offset 189, 19 lines modified | Offset 189, 19 lines modified | ||
| 189 | <a·href="#lib_dir/2"><code·class="inline">code:lib_dir/2</code></a>·and·<a·href="../../../../erts-16.0/doc/html/erl_prim_loader.html"><code·class="inline">erl_prim_loader</code></a>.</p></section><p>The·Erlang·archives·are·<code·class="inline">ZIP</code>·files·with·extension·<code·class="inline">.ez</code>.·Erlang·archives·can | 189 | <a·href="#lib_dir/2"><code·class="inline">code:lib_dir/2</code></a>·and·<a·href="../../../../erts-16.0/doc/html/erl_prim_loader.html"><code·class="inline">erl_prim_loader</code></a>.</p></section><p>The·Erlang·archives·are·<code·class="inline">ZIP</code>·files·with·extension·<code·class="inline">.ez</code>.·Erlang·archives·can |
| 190 | also·be·<a·href="../../../../lib/stdlib-7.0/doc/html/escript.html">enclosed·in·<code·class="inline">escript</code></a>·files·whose·file·extension·is·arbitrary.</p><p>Erlang·archive·files·can·contain·entire·Erlang·applications·or·parts·of | 190 | also·be·<a·href="../../../../lib/stdlib-7.0/doc/html/escript.html">enclosed·in·<code·class="inline">escript</code></a>·files·whose·file·extension·is·arbitrary.</p><p>Erlang·archive·files·can·contain·entire·Erlang·applications·or·parts·of |
| 191 | applications.·The·structure·in·an·archive·file·is·the·same·as·the·directory | 191 | applications.·The·structure·in·an·archive·file·is·the·same·as·the·directory |
| 192 | structure·for·an·application.·If·you,·for·example,·create·an·archive·of | 192 | structure·for·an·application.·If·you,·for·example,·create·an·archive·of |
| 193 | <code·class="inline">mnesia-4.4.7</code>,·the·archive·file·must·be·named·<code·class="inline">mnesia-4.4.7.ez</code>·and·it·must | 193 | <code·class="inline">mnesia-4.4.7</code>,·the·archive·file·must·be·named·<code·class="inline">mnesia-4.4.7.ez</code>·and·it·must |
| 194 | contain·a·top·directory·named·<code·class="inline">mnesia-4.4.7</code>.·If·the·version·part·of·the·name·is | 194 | contain·a·top·directory·named·<code·class="inline">mnesia-4.4.7</code>.·If·the·version·part·of·the·name·is |
| 195 | omitted,·it·must·also·be·omitted·in·the·archive.·That·is,·a·<code·class="inline">mnesia.ez</code>·archive | 195 | omitted,·it·must·also·be·omitted·in·the·archive.·That·is,·a·<code·class="inline">mnesia.ez</code>·archive |
| 196 | must·contain·a·<code·class="inline">mnesia</code>·top·directory.</p><p>An·archive·file·for·an·application·can,·for·example,·be·created·like·this:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">zip</span><span·class="p">:</span><span·class="nf">create</span><span·class="p"·data-group-id="7 | 196 | must·contain·a·<code·class="inline">mnesia</code>·top·directory.</p><p>An·archive·file·for·an·application·can,·for·example,·be·created·like·this:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">zip</span><span·class="p">:</span><span·class="nf">create</span><span·class="p"·data-group-id="7239422741-1">(</span><span·class="s">"mnesia-4.4.7.ez"</span><span·class="p">,</span><span·class="w"> |
| 197 | » </span><span·class="p"·data-group-id="7 | 197 | » </span><span·class="p"·data-group-id="7239422741-2">[</span><span·class="s">"mnesia-4.4.7"</span><span·class="p"·data-group-id="7239422741-2">]</span><span·class="p">,</span><span·class="w"> |
| 198 | » </span><span·class="p"·data-group-id="7 | 198 | » </span><span·class="p"·data-group-id="7239422741-3">[</span><span·class="p"·data-group-id="7239422741-4">{</span><span·class="ss">cwd</span><span·class="p">,</span><span·class="w">·</span><span·class="nc">code</span><span·class="p">:</span><span·class="nf">lib_dir</span><span·class="p"·data-gro[·...·truncated·by·diffoscope;·len:·122,·SHA:·68bc8db422f521ebb265f76f131784edb9a883428b896e9436e50500577698d1·...·]1-4">}</span><span·class="p">,</span><span·class="w"> |
| 199 | » ·</span><span·class="p"·data-group-id="7 | 199 | » ·</span><span·class="p"·data-group-id="7239422741-6">{</span><span·class="ss">compress</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">all</span><span·class="p"·data-group-id="7239422741-6">}</span><span·class="p">,</span><span·class="w"> |
| 200 | » ·</span><span·class="p"·data-group-id="7 | 200 | » ·</span><span·class="p"·data-group-id="7239422741-7">{</span><span·class="ss">uncompress</span><span·class="p">,</span><span·class="p"·data-group-id="7239422741-8">[</span><span·class="s">".beam"</span><span·class="p">,</span><span·class="s">".app"</span><span·class="p"·data-[·...·truncated·by·diffoscope;·len:·178,·SHA:·0f0a5c170ad694fe8972e6c42347d82741023b6e3e7c130cdbbb2684d607f731·...·]1-1">)</span><span·class="p">.</span></code></pre><p>Any·file·in·the·archive·can·be·compressed,·but·to·speed·up·the·access·of |
| 201 | frequently·read·files,·it·can·be·a·good·idea·to·store·<code·class="inline">beam</code>·and·<code·class="inline">app</code>·files | 201 | frequently·read·files,·it·can·be·a·good·idea·to·store·<code·class="inline">beam</code>·and·<code·class="inline">app</code>·files |
| 202 | uncompressed·in·the·archive.</p><p>Normally·the·top·directory·of·an·application·is·located·in·library·directory | 202 | uncompressed·in·the·archive.</p><p>Normally·the·top·directory·of·an·application·is·located·in·library·directory |
| 203 | <code·class="inline">$OTPROOT/lib</code>·or·in·a·directory·referred·to·by·environment·variable·<code·class="inline">ERL_LIBS</code>. | 203 | <code·class="inline">$OTPROOT/lib</code>·or·in·a·directory·referred·to·by·environment·variable·<code·class="inline">ERL_LIBS</code>. |
| 204 | At·startup,·when·the·initial·code·path·is·computed,·the·code·server·also·looks | 204 | At·startup,·when·the·initial·code·path·is·computed,·the·code·server·also·looks |
| 205 | for·archive·files·in·these·directories·and·possibly·adds·<code·class="inline">ebin</code>·directories·in | 205 | for·archive·files·in·these·directories·and·possibly·adds·<code·class="inline">ebin</code>·directories·in |
| 206 | archives·to·the·code·path.·The·code·path·then·contains·paths·to·directories·that | 206 | archives·to·the·code·path.·The·code·path·then·contains·paths·to·directories·that |
| 207 | look·like·<code·class="inline">$OTPROOT/lib/mnesia.ez/mnesia/ebin</code>·or | 207 | look·like·<code·class="inline">$OTPROOT/lib/mnesia.ez/mnesia/ebin</code>·or |
| Offset 2031, 18 lines modified | Offset 2031, 18 lines modified | ||
| 2031 | none·of·the·modules·are·loaded·if·there·is·a·problem·with·any·of·the | 2031 | none·of·the·modules·are·loaded·if·there·is·a·problem·with·any·of·the |
| 2032 | modules.</p><p>Loading·can·fail·for·one·the·following·reasons:</p><ul><li><p><strong><code·class="inline">badfile</code></strong>·-·The·object·code·has·an·incorrect·format·or·the·module·name·in | 2032 | modules.</p><p>Loading·can·fail·for·one·the·following·reasons:</p><ul><li><p><strong><code·class="inline">badfile</code></strong>·-·The·object·code·has·an·incorrect·format·or·the·module·name·in |
| 2033 | the·object·code·is·not·the·expected·module·name.</p></li><li><p><strong><code·class="inline">nofile</code></strong>·-·No·file·with·object·code·exists.</p></li><li><p><strong><code·class="inline">on_load_not_allowed</code></strong>·-·A·module·contains·an | 2033 | the·object·code·is·not·the·expected·module·name.</p></li><li><p><strong><code·class="inline">nofile</code></strong>·-·No·file·with·object·code·exists.</p></li><li><p><strong><code·class="inline">on_load_not_allowed</code></strong>·-·A·module·contains·an |
| 2034 | <a·href="../../../../doc/system/code_loading.html#on_load">-on_load·function</a>.</p></li><li><p><strong><code·class="inline">duplicated</code></strong>·-·A·module·is·included·more·than·once·in·<code·class="inline">Modules</code>.</p></li><li><p><strong><code·class="inline">not_purged</code></strong>·-·The·object·code·cannot·be·loaded·because·an·old·version·of | 2034 | <a·href="../../../../doc/system/code_loading.html#on_load">-on_load·function</a>.</p></li><li><p><strong><code·class="inline">duplicated</code></strong>·-·A·module·is·included·more·than·once·in·<code·class="inline">Modules</code>.</p></li><li><p><strong><code·class="inline">not_purged</code></strong>·-·The·object·code·cannot·be·loaded·because·an·old·version·of |
| 2035 | the·code·already·exists.</p></li><li><p><strong><code·class="inline">sticky_directory</code></strong>·-·The·object·code·resides·in·a·sticky·directory.</p></li><li><p><strong><code·class="inline">pending_on_load</code></strong>·-·A·previously·loaded·module·contains·an·<code·class="inline">-on_load</code> | 2035 | the·code·already·exists.</p></li><li><p><strong><code·class="inline">sticky_directory</code></strong>·-·The·object·code·resides·in·a·sticky·directory.</p></li><li><p><strong><code·class="inline">pending_on_load</code></strong>·-·A·previously·loaded·module·contains·an·<code·class="inline">-on_load</code> |
| 2036 | function·that·never·finished.</p></li></ul><p>If·it·is·important·to·minimize·the·time·that·an·application·is·inactive·while | 2036 | function·that·never·finished.</p></li></ul><p>If·it·is·important·to·minimize·the·time·that·an·application·is·inactive·while |
| 2037 | changing·code,·use·<a·href="#prepare_loading/1"><code·class="inline">prepare_loading/1</code></a>·and·<a·href="#finish_loading/1"><code·class="inline">finish_loading/1</code></a>·instead·of | 2037 | changing·code,·use·<a·href="#prepare_loading/1"><code·class="inline">prepare_loading/1</code></a>·and·<a·href="#finish_loading/1"><code·class="inline">finish_loading/1</code></a>·instead·of |
| 2038 | <a·href="#atomic_load/1"><code·class="inline">atomic_load/1</code></a>.·Here·is·an·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 2038 | <a·href="#atomic_load/1"><code·class="inline">atomic_load/1</code></a>.·Here·is·an·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="1034490465-1">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="n">Prepared</span><span·class="p"·data-group-id="1034490465-1">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">code</span>[·...·truncated·by·diffoscope;·len:·186,·SHA:·23f266b6215a12ef5cf72254a0b07ae88cc303b12cc4a7260feb3ed976f55b4a·...·]5-2">)</span><span·class="p">,</span><span·class="w"> |
| 2039 | </span><span·class="c1">%%·Put·the·application·into·an·inactive·state·or·do·any</span><span·class="w"> | 2039 | </span><span·class="c1">%%·Put·the·application·into·an·inactive·state·or·do·any</span><span·class="w"> |
| 2040 | </span><span·class="c1">%%·other·preparation·needed·before·changing·the·code.</span><span·class="w"> | 2040 | </span><span·class="c1">%%·other·preparation·needed·before·changing·the·code.</span><span·class="w"> |
| 2041 | </span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">code</span><span·class="p">:</span><span·class="nf">finish_loading</span><span·class="p"·data-group-id=" | 2041 | </span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">code</span><span·class="p">:</span><span·class="nf">finish_loading</span><span·class="p"·data-group-id="1034490465-3">(</span><span·class="n">Prepared</span><span·class="p"·data-group-id="1034490465-3">)</span><span·class="p">,</span><span·class="w"> |
| 2042 | </span><span·class="c1">%%·Resume·the·application.</span></code></pre> | 2042 | </span><span·class="c1">%%·Resume·the·application.</span></code></pre> |
| 2043 | ··</section> | 2043 | ··</section> |
| 2044 | </section> | 2044 | </section> |
| 2045 | <section·class="detail"·id="clash/0"> | 2045 | <section·class="detail"·id="clash/0"> |
| 2046 | ··<div·class="detail-header"> | 2046 | ··<div·class="detail-header"> |
| 2047 | ····<a·href="#clash/0"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 2047 | ····<a·href="#clash/0"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| Offset 2583, 16 lines modified | Offset 2583, 16 lines modified | ||
| 2583 | ······</div> | 2583 | ······</div> |
| 2584 | <p>Returns·the·object·code·for·module·<code·class="inline">Module</code>·if·found·in·the·code·path.</p><p>Returns·<code·class="inline">{Module,·Binary,·Filename}</code>·if·successful,·otherwise | 2584 | <p>Returns·the·object·code·for·module·<code·class="inline">Module</code>·if·found·in·the·code·path.</p><p>Returns·<code·class="inline">{Module,·Binary,·Filename}</code>·if·successful,·otherwise |
| 2585 | <code·class="inline">error</code>.·<code·class="inline">Binary</code>·is·a·binary·data·object,·which·contains·the·object | 2585 | <code·class="inline">error</code>.·<code·class="inline">Binary</code>·is·a·binary·data·object,·which·contains·the·object |
| 2586 | code·for·the·module.·This·is·useful·if·code·is·to·be·loaded·on·a | 2586 | code·for·the·module.·This·is·useful·if·code·is·to·be·loaded·on·a |
| 2587 | remote·node·in·a·distributed·system.·For·example,·loading·module | 2587 | remote·node·in·a·distributed·system.·For·example,·loading·module |
| 2588 | <code·class="inline">Module</code>·on·a·node·<code·class="inline">Node</code>·is·done·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> | 2588 | <code·class="inline">Module</code>·on·a·node·<code·class="inline">Node</code>·is·done·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> |
| 2589 | </span><span·class="p"·data-group-id=" | 2589 | </span><span·class="p"·data-group-id="2536593240-1">{</span><span·class="p">_</span><span·class="n">Module</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Binary</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Filename</span><span·class="p"·data-grou[·...·truncated·by·diffoscope;·len:·314,·SHA:·5f0b56bf1dc8654aa637ce63a310c8b1c0fc27dd76a8277335486bfca7b56ab0·...·]-2">)</span><span·class="p">,</span><span·class="w"> |
| 2590 | </span><span·class="nc">erpc</span><span·class="p">:</span><span·class="nf">call</span><span·class="p"·data-group-id=" | 2590 | </span><span·class="nc">erpc</span><span·class="p">:</span><span·class="nf">call</span><span·class="p"·data-group-id="2536593240-3">(</span><span·class="n">Node</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">code</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">load_binary</span><span·class="p">,</span><span·class="w">·</span>[·...·truncated·by·diffoscope;·len:·332,·SHA:·e5e8655a3e794d27948ca594fceb0ff0030b12afab4e386312dcd9c64fc99067·...·]-3">)</span><span·class="p">,</span><span·class="w"> |
| 2591 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span></code></pre> | 2591 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span></code></pre> |
| 2592 | ··</section> | 2592 | ··</section> |
| 2593 | </section> | 2593 | </section> |
| 2594 | <section·class="detail"·id="get_path/0"> | 2594 | <section·class="detail"·id="get_path/0"> |
| 2595 | ··<div·class="detail-header"> | 2595 | ··<div·class="detail-header"> |
| 2596 | ····<a·href="#get_path/0"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 2596 | ····<a·href="#get_path/0"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| Offset 2695, 15 lines modified | Offset 2695, 15 lines modified | ||
| 2695 | ······<div·class="specs"> | 2695 | ······<div·class="specs"> |
| 2696 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·lib_dir()·->·<a·href="file.html#t:filename/0">file:filename</a>().</pre> | 2696 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·lib_dir()·->·<a·href="file.html#t:filename/0">file:filename</a>().</pre> |
| 2697 | ······</div> | 2697 | ······</div> |
| 2698 | <p>Returns·the·library·directory,·<code·class="inline">$OTPROOT/lib</code>,·where·<code·class="inline">$OTPROOT</code>·is·the·root | 2698 | <p>Returns·the·library·directory,·<code·class="inline">$OTPROOT/lib</code>,·where·<code·class="inline">$OTPROOT</code>·is·the·root |
| 2699 | directory·of·Erlang/OTP.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">code</span><span·class="p">:</span><span·class="nf">lib_dir</span><span·class="p"·data-group-id=" | 2699 | directory·of·Erlang/OTP.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">code</span><span·class="p">:</span><span·class="nf">lib_dir</span><span·class="p"·data-group-id="0334225912-1">(</span><span·class="p"·data-group-id="0334225912-1">)</span><span·class="p">.</span><span·class="w"> |
| 2700 | </span><span·class="s">"/usr/local/otp/lib"</span></code></pre> | 2700 | </span><span·class="s">"/usr/local/otp/lib"</span></code></pre> |
| 2701 | ··</section> | 2701 | ··</section> |
| 2702 | </section> | 2702 | </section> |
| 2703 | <section·class="detail"·id="lib_dir/1"> | 2703 | <section·class="detail"·id="lib_dir/1"> |
| 2704 | ··<div·class="detail-header"> | 2704 | ··<div·class="detail-header"> |
| 2705 | ····<a·href="#lib_dir/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 2705 | ····<a·href="#lib_dir/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| Offset 2732, 15 lines modified | Offset 2732, 15 lines modified | ||
| 2732 | an·<code·class="inline">ebin</code>·subdirectory,·the·path·to·this·directory·is·returned·(not·the·<code·class="inline">ebin</code> | 2732 | an·<code·class="inline">ebin</code>·subdirectory,·the·path·to·this·directory·is·returned·(not·the·<code·class="inline">ebin</code> |
| 2733 | directory).</p><p>If·the·directory·refers·to·a·directory·in·an·archive,·the·archive·name·is | 2733 | directory).</p><p>If·the·directory·refers·to·a·directory·in·an·archive,·the·archive·name·is |
| 2734 | stripped·away·before·the·path·is·returned.·For·example,·if·directory | 2734 | stripped·away·before·the·path·is·returned.·For·example,·if·directory |
| 2735 | <code·class="inline">/usr/local/otp/lib/mnesia-4.2.2.ez/mnesia-4.2.2/ebin</code>·is·in·the·path, | 2735 | <code·class="inline">/usr/local/otp/lib/mnesia-4.2.2.ez/mnesia-4.2.2/ebin</code>·is·in·the·path, |
| 2736 | <code·class="inline">/usr/local/otp/lib/mnesia-4.2.2/ebin</code>·is·returned.·This·means·that·the·library | 2736 | <code·class="inline">/usr/local/otp/lib/mnesia-4.2.2/ebin</code>·is·returned.·This·means·that·the·library |
| 2737 | directory·for·an·application·is·the·same,·regardless·if·the·application·resides | 2737 | directory·for·an·application·is·the·same,·regardless·if·the·application·resides |
| 2738 | in·an·archive·or·not.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Warning</h4><p>Archives·are·experimental.·In·a·future·release,·they·can·be·removed·or | 2738 | in·an·archive·or·not.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Warning</h4><p>Archives·are·experimental.·In·a·future·release,·they·can·be·removed·or |
| 2739 | their·behavior·can·change.</p></section><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="nc">code</span><span·class="p">:</span><span·class="nf">lib_dir</span><span·class="p"·data-group-id=" | 2739 | their·behavior·can·change.</p></section><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="nc">code</span><span·class="p">:</span><span·class="nf">lib_dir</span><span·class="p"·data-group-id="4261242480-1">(</span><span·class="ss">mnesia</span><span·class="p"·data-group-id="4261242480-1">)</span><span·class="p">.</span><span·class="w"> |
| 2740 | </span><span·class="s">"/usr/local/otp/lib/mnesia-4.23"</span></code></pre><p>Returns·<code·class="inline">{error,·bad_name}</code>·if·<code·class="inline">Name</code>·is·not·the·name·of·an·application·under | 2740 | </span><span·class="s">"/usr/local/otp/lib/mnesia-4.23"</span></code></pre><p>Returns·<code·class="inline">{error,·bad_name}</code>·if·<code·class="inline">Name</code>·is·not·the·name·of·an·application·under |
| 2741 | <code·class="inline">$OTPROOT/lib</code>·or·on·a·directory·referred·to·through·environment·variable | 2741 | <code·class="inline">$OTPROOT/lib</code>·or·on·a·directory·referred·to·through·environment·variable |
| 2742 | <code·class="inline">ERL_LIBS</code>.·Fails·with·an·exception·if·<code·class="inline">Name</code>·has·the·wrong·type.</p><section·role="note"·class="admonition·warning"><h4·class="admonition-title·warning">Warning</h4><p>For·backward·compatibility,·<code·class="inline">Name</code>·is·also·allowed·to·be·a·string.·That·will | 2742 | <code·class="inline">ERL_LIBS</code>.·Fails·with·an·exception·if·<code·class="inline">Name</code>·has·the·wrong·type.</p><section·role="note"·class="admonition·warning"><h4·class="admonition-title·warning">Warning</h4><p>For·backward·compatibility,·<code·class="inline">Name</code>·is·also·allowed·to·be·a·string.·That·will |
| 2743 | probably·change·in·a·future·release.</p></section> | 2743 | probably·change·in·a·future·release.</p></section> |
| 2744 | ··</section> | 2744 | ··</section> |
| 2745 | </section> | 2745 | </section> |
| 2746 | <section·class="detail"·id="lib_dir/2"> | 2746 | <section·class="detail"·id="lib_dir/2"> |
| Offset 2773, 15 lines modified | Offset 2773, 15 lines modified | ||
| 2773 | <p>Returns·the·path·to·a·subdirectory·directly·under·the·top·directory·of·an | 2773 | <p>Returns·the·path·to·a·subdirectory·directly·under·the·top·directory·of·an |
| 2774 | application.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Change</h4><p>This·function·is·part·of·the·archive·support,·which·is·an·experimental | 2774 | application.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Change</h4><p>This·function·is·part·of·the·archive·support,·which·is·an·experimental |
| 2775 | feature·that·will·be·changed·or·removed·in·a·future·release.</p></section><p>Normally·the·subdirectories·reside·under·the·top·directory·for·the | 2775 | feature·that·will·be·changed·or·removed·in·a·future·release.</p></section><p>Normally·the·subdirectories·reside·under·the·top·directory·for·the |
| 2776 | application,·but·when·applications·at·least·partly·reside·in·an·archive,·the | 2776 | application,·but·when·applications·at·least·partly·reside·in·an·archive,·the |
| 2777 | situation·is·different.·Some·of·the·subdirectories·can·reside·as·regular | 2777 | situation·is·different.·Some·of·the·subdirectories·can·reside·as·regular |
| 2778 | directories·while·others·reside·in·an·archive·file.·It·is·not·checked·whether | 2778 | directories·while·others·reside·in·an·archive·file.·It·is·not·checked·whether |
| 2779 | this·directory·exists.</p><p>Instead·of·using·this·function,·use·<a·href="#lib_dir/1"><code·class="inline">code:lib_dir/1</code></a> | 2779 | this·directory·exists.</p><p>Instead·of·using·this·function,·use·<a·href="#lib_dir/1"><code·class="inline">code:lib_dir/1</code></a> |
| 2780 | and·<a·href="../../../../lib/stdlib-7.0/doc/html/filename.html#join/2"><code·class="inline">filename:join/2</code></a>.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">join</span><span·class="p"·data-group-id=" | 2780 | and·<a·href="../../../../lib/stdlib-7.0/doc/html/filename.html#join/2"><code·class="inline">filename:join/2</code></a>.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">join</span><span·class="p"·data-group-id="2479230593-1">(</span><span·class="nc">code</span><span·class="p">:</span><span·class="nf">lib_dir</span><span·class="p"·data-group-id="2479230593-2">(</span><span·class="ss">megaco</span><span·class="p"·data-group-id="2479230593-2">)</span><span·class="p"[·...·truncated·by·diffoscope;·len:·113,·SHA:·588c7e802ecbae8f5fb1774ef7dd69c7830277436029f4c9eea2801539c0c418·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 2781 | </span><span·class="s">"/usr/local/otp/lib/megaco-3.9.1.1/priv"</span></code></pre><p>Fails·with·an·exception·if·<code·class="inline">Name</code>·or·<code·class="inline">SubDir</code>·has·the·wrong·type.</p> | 2781 | </span><span·class="s">"/usr/local/otp/lib/megaco-3.9.1.1/priv"</span></code></pre><p>Fails·with·an·exception·if·<code·class="inline">Name</code>·or·<code·class="inline">SubDir</code>·has·the·wrong·type.</p> |
| 2782 | ··</section> | 2782 | ··</section> |
| 2783 | </section> | 2783 | </section> |
| 2784 | <section·class="detail"·id="load_abs/1"> | 2784 | <section·class="detail"·id="load_abs/1"> |
| 2785 | ··<div·class="detail-header"> | 2785 | ··<div·class="detail-header"> |
| 2786 | ····<a·href="#load_abs/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 2786 | ····<a·href="#load_abs/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
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| 3204 | ······<div·class="specs"> | 3204 | ······<div·class="specs"> |
| 3205 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·root_dir()·->·<a·href="file.html#t:filename/0">file:filename</a>().</pre> | 3205 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·root_dir()·->·<a·href="file.html#t:filename/0">file:filename</a>().</pre> |
| 3206 | ······</div> | 3206 | ······</div> |
| 3207 | <p>Returns·the·root·directory·of·Erlang/OTP,·which·is·the·directory·where·it·is | 3207 | <p>Returns·the·root·directory·of·Erlang/OTP,·which·is·the·directory·where·it·is |
| 3208 | installed.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">code</span><span·class="p">:</span><span·class="nf">root_dir</span><span·class="p"·data-group-id=" | 3208 | installed.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">code</span><span·class="p">:</span><span·class="nf">root_dir</span><span·class="p"·data-group-id="6191296976-1">(</span><span·class="p"·data-group-id="6191296976-1">)</span><span·class="p">.</span><span·class="w"> |
| 3209 | </span><span·class="s">"/usr/local/otp"</span></code></pre> | 3209 | </span><span·class="s">"/usr/local/otp"</span></code></pre> |
| 3210 | ··</section> | 3210 | ··</section> |
| 3211 | </section> | 3211 | </section> |
| 3212 | <section·class="detail"·id="set_coverage_mode/1"> | 3212 | <section·class="detail"·id="set_coverage_mode/1"> |
| 3213 | ··<div·class="detail-header"> | 3213 | ··<div·class="detail-header"> |
| 3214 | ····<a·href="#set_coverage_mode/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 3214 | ····<a·href="#set_coverage_mode/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
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| 3480 | ······<p·class="built-using"> | 3480 | ······<p·class="built-using"> |
| 3481 | ········Built·using | 3481 | ········Built·using |
| 3482 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 3482 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 3483 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 3483 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 3484 | ······</p> | 3484 | ······</p> |
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| 148 | (see·<a·href="../../../../erts-16.0/doc/html/erl_cmd.html"><code·class="inline">erts:erl(1)</code></a>).</p><p>The·value·of·a·configuration·parameter·is·retrieved·by·calling | 148 | (see·<a·href="../../../../erts-16.0/doc/html/erl_cmd.html"><code·class="inline">erts:erl(1)</code></a>).</p><p>The·value·of·a·configuration·parameter·is·retrieved·by·calling |
| 149 | <code·class="inline">application:get_env/1,2</code>.</p><h2·id="file-syntax"·class="section-heading"> | 149 | <code·class="inline">application:get_env/1,2</code>.</p><h2·id="file-syntax"·class="section-heading"> |
| 150 | ··<a·href="#file-syntax"·class="hover-link"> | 150 | ··<a·href="#file-syntax"·class="hover-link"> |
| 151 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 151 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 152 | ··</a> | 152 | ··</a> |
| 153 | ··<span·class="text">File·Syntax</span> | 153 | ··<span·class="text">File·Syntax</span> |
| 154 | </h2> | 154 | </h2> |
| 155 | <p>The·configuration·file·is·to·be·called·<code·class="inline">Name.config</code>,·where·<code·class="inline">Name</code>·is·any·name.</p><p>File·<code·class="inline">.config</code>·contains·a·single·Erlang·term·and·has·the·following·syntax:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 155 | <p>The·configuration·file·is·to·be·called·<code·class="inline">Name.config</code>,·where·<code·class="inline">Name</code>·is·any·name.</p><p>File·<code·class="inline">.config</code>·contains·a·single·Erlang·term·and·has·the·following·syntax:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="1928469070-1">[</span><span·class="p"·data-group-id="1928469070-2">{</span><span·class="n">Application1</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1928469070-3">[</span><span·class="p"·data-group-id="1928469070-4">[·...·truncated·by·diffoscope;·len:·379,·SHA:·7e3a006d455f2a2a4cf8c89d8459883bd7c5c3ca590b4ab3d6744d50d58af2d7·...·]-2">}</span><span·class="p">,</span><span·class="w"> |
| 156 | ·</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> | 156 | ·</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> |
| 157 | ·</span><span·class="p"·data-group-id=" | 157 | ·</span><span·class="p"·data-group-id="1928469070-5">{</span><span·class="n">ApplicationN</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1928469070-6">[</span><span·class="p"·data-group-id="1928469070-7">{</span><span·class="n">ParN1</span><span·class="p">,[·...·truncated·by·diffoscope;·len:·379,·SHA:·d27375bff43004a64f5aefa2f698c453fb9463cf8401864972e38dff236fc3c7·...·]-1">]</span><span·class="p">.</span></code></pre><ul><li><p><strong><code·class="inline">Application·=·atom()</code></strong>·-·Application·name.</p></li><li><p><strong><code·class="inline">Par·=·atom()</code></strong>·-·Name·of·a·configuration·parameter.</p></li><li><p><strong><code·class="inline">Val·=·term()</code></strong>·-·Value·of·a·configuration·parameter.</p></li></ul><h2·id="sys-config"·class="section-heading"> |
| 158 | ··<a·href="#sys-config"·class="hover-link"> | 158 | ··<a·href="#sys-config"·class="hover-link"> |
| 159 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 159 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 160 | ··</a> | 160 | ··</a> |
| 161 | ··<span·class="text">sys.config</span> | 161 | ··<span·class="text">sys.config</span> |
| 162 | </h2> | 162 | </h2> |
| 163 | <p>When·starting·Erlang·in·embedded·mode,·it·is·assumed·that·exactly·one·system | 163 | <p>When·starting·Erlang·in·embedded·mode,·it·is·assumed·that·exactly·one·system |
| 164 | configuration·file·is·used,·named·<code·class="inline">sys.config</code>.·This·file·is·to·be·located·in | 164 | configuration·file·is·used,·named·<code·class="inline">sys.config</code>.·This·file·is·to·be·located·in |
| Offset 253, 15 lines modified | Offset 253, 15 lines modified | ||
| 253 | ······<p·class="built-using"> | 253 | ······<p·class="built-using"> |
| 254 | ········Built·using | 254 | ········Built·using |
| 255 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 255 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 256 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 256 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 257 | ······</p> | 257 | ······</p> |
| 258 | <p>Copyright·©·1996-202 | 258 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 259 | ····</footer> | 259 | ····</footer> |
| 260 | ··</div> | 260 | ··</div> |
| 261 | </main> | 261 | </main> |
| 262 | </div> | 262 | </div> |
| 263 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 263 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 264 | ··<script> | 264 | ··<script> |
| 265 | ··let·initialized·=·false; | 265 | ··let·initialized·=·false; |
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| 2950 | ······<p·class="built-using"> | 2950 | ······<p·class="built-using"> |
| 2951 | ········Built·using | 2951 | ········Built·using |
| 2952 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 2952 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 2953 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 2953 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 2954 | ······</p> | 2954 | ······</p> |
| 2955 | <p>Copyright·©·1996-202 | 2955 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 2956 | ····</footer> | 2956 | ····</footer> |
| 2957 | ··</div> | 2957 | ··</div> |
| 2958 | </main> | 2958 | </main> |
| 2959 | </div> | 2959 | </div> |
| 2960 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 2960 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 2961 | ··<script> | 2961 | ··<script> |
| 2962 | ··let·initialized·=·false; | 2962 | ··let·initialized·=·false; |
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| 150 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 150 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 151 | ··</a> | 151 | ··</a> |
| 152 | ··<span·class="text">The·"Docs"·format</span> | 152 | ··<span·class="text">The·"Docs"·format</span> |
| 153 | </h2> | 153 | </h2> |
| 154 | <p>In·both·storages,·the·documentation·is·written·in·the·exactly·same·format:·an | 154 | <p>In·both·storages,·the·documentation·is·written·in·the·exactly·same·format:·an |
| 155 | Erlang·term·serialized·to·binary·via | 155 | Erlang·term·serialized·to·binary·via |
| 156 | <a·href="../../../../erts-16.0/doc/html/erlang.html#term_to_binary/1"><code·class="inline">term_to_binary/1</code></a>.·The·term·can·be·optionally | 156 | <a·href="../../../../erts-16.0/doc/html/erlang.html#term_to_binary/1"><code·class="inline">term_to_binary/1</code></a>.·The·term·can·be·optionally |
| 157 | compressed·when·serialized.·It·must·follow·the·type·specification·below:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 157 | compressed·when·serialized.·It·must·follow·the·type·specification·below:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="6982422605-1">{</span><span·class="ss">docs_v1</span><span·class="p">,</span><span·class="w"> |
| 158 | ·</span><span·class="n">Anno</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nc">erl_anno</span><span·class="p">:</span><span·class="nf">anno</span><span·class="p"·data-group-id=" | 158 | ·</span><span·class="n">Anno</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nc">erl_anno</span><span·class="p">:</span><span·class="nf">anno</span><span·class="p"·data-group-id="6982422605-2">(</span><span·class="p"·data-group-id="6982422605-2">)</span><span·class="p">,</span><span·class="w"> |
| 159 | ·</span><span·class="n">BeamLanguage</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">atom</span><span·class="p"·data-group-id=" | 159 | ·</span><span·class="n">BeamLanguage</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">atom</span><span·class="p"·data-group-id="6982422605-3">(</span><span·class="p"·data-group-id="6982422605-3">)</span><span·class="p">,</span><span·class="w"> |
| 160 | ·</span><span·class="n">Format</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">binary</span><span·class="p"·data-group-id=" | 160 | ·</span><span·class="n">Format</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">binary</span><span·class="p"·data-group-id="6982422605-4">(</span><span·class="p"·data-group-id="6982422605-4">)</span><span·class="p">,</span><span·class="w"> |
| 161 | ·</span><span·class="n">ModuleDoc</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id=" | 161 | ·</span><span·class="n">ModuleDoc</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id="6982422605-5">#{</span><span·class="n">DocLanguage</span><span·class="w">·</span><span·class="p">:=</span><span·class="w">·</span><span·class="n">DocValue</span><span·class="p"·data-group-id="6982422605-5">}</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">none</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">hidden</span><span·class="p">,</span><span·class="w"> |
| 162 | ·</span><span·class="n">Metadata</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">map</span><span·class="p"·data-group-id=" | 162 | ·</span><span·class="n">Metadata</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">map</span><span·class="p"·data-group-id="6982422605-6">(</span><span·class="p"·data-group-id="6982422605-6">)</span><span·class="p">,</span><span·class="w"> |
| 163 | ·</span><span·class="n">Docs</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w"> | 163 | ·</span><span·class="n">Docs</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w"> |
| 164 | ···</span><span·class="p"·data-group-id=" | 164 | ···</span><span·class="p"·data-group-id="6982422605-7">[</span><span·class="p"·data-group-id="6982422605-8">{</span><span·class="p"·data-group-id="6982422605-9">{</span><span·class="n">Kind</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Name</span><span·class="p">,</span><s[·...·truncated·by·diffoscope;·len:·91,·SHA:·499ba5601c1d44758d6fb81fe534bbaee91034e26868d2aa330bc2fb93910a45·...·]-9">}</span><span·class="p">,</span><span·class="w"> |
| 165 | ·····</span><span·class="n">Anno</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nc">erl_anno</span><span·class="p">:</span><span·class="nf">anno</span><span·class="p"·data-group-id=" | 165 | ·····</span><span·class="n">Anno</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nc">erl_anno</span><span·class="p">:</span><span·class="nf">anno</span><span·class="p"·data-group-id="6982422605-10">(</span><span·class="p"·data-group-id="6982422605-10">)</span><span·class="p">,</span><span·class="w"> |
| 166 | ·····</span><span·class="n">Signature</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id=" | 166 | ·····</span><span·class="n">Signature</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id="6982422605-11">[</span><span·class="nf">binary</span><span·class="p"·data-group-id="6982422605-12">(</span><span·class="p"·data-group-id="6982422605-12">)</span><span·class="p"·data-group-id="6982422605-11">]</span><span·class="p">,</span><span·class="w"> |
| 167 | ·····</span><span·class="n">Doc</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id=" | 167 | ·····</span><span·class="n">Doc</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id="6982422605-13">#{</span><span·class="n">DocLanguage</span><span·class="w">·</span><span·class="p">:=</span><span·class="w">·</span><span·class="n">DocValue</span><span·class="p"·data-group-id="6982422605-13">}</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">none</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">hidden</span><span·class="p">,</span><span·class="w"> |
| 168 | ·····</span><span·class="n">Metadata</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">map</span><span·class="p"·data-group-id=" | 168 | ·····</span><span·class="n">Metadata</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">map</span><span·class="p"·data-group-id="6982422605-14">(</span><span·class="p"·data-group-id="6982422605-14">)</span><span·class="w"> |
| 169 | ····</span><span·class="p"·data-group-id=" | 169 | ····</span><span·class="p"·data-group-id="6982422605-8">}</span><span·class="p"·data-group-id="6982422605-7">]</span><span·class="p"·data-group-id="6982422605-1">}</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><span·class="n">DocLanguage</span><span·class="w">·</[·...·truncated·by·diffoscope;·len:·202,·SHA:·41843abf0b273e96f23230bbdf7c8817dd91f8f7f8b12db2ccf5a47343aa9857·...·]-15">)</span><span·class="p">,</span><span·class="w"> |
| 170 | ·············</span><span·class="n">DocValue</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">binary</span><span·class="p"·data-group-id=" | 170 | ·············</span><span·class="n">DocValue</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">binary</span><span·class="p"·data-group-id="6982422605-16">(</span><span·class="p"·data-group-id="6982422605-16">)</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="nf">term</span><span·class="p"·data-group-id="6982422605-17">(</span><span·class="p"·data-grou[·...·truncated·by·diffoscope;·len:·16,·SHA:·53ba2f304c7213eb89a59aca97ffaa88b519141965f684b222afe12446817d1b·...·]-17">)</span></code></pre><p>where·in·the·root·tuple·we·have:</p><ul><li><p><strong><code·class="inline">Anno</code></strong>·-·annotation·(line,·column,·file)·of·the·definition·itself·(see |
| 171 | <a·href="../../../../lib/stdlib-7.0/doc/html/erl_anno.html"><code·class="inline">erl_anno</code></a>)</p></li><li><p><strong><code·class="inline">BeamLanguage</code></strong>·-·an·atom·representing·the·language,·for·example:·<code·class="inline">erlang</code>, | 171 | <a·href="../../../../lib/stdlib-7.0/doc/html/erl_anno.html"><code·class="inline">erl_anno</code></a>)</p></li><li><p><strong><code·class="inline">BeamLanguage</code></strong>·-·an·atom·representing·the·language,·for·example:·<code·class="inline">erlang</code>, |
| 172 | <code·class="inline">elixir</code>,·<code·class="inline">lfe</code>,·<code·class="inline">alpaca</code>,·and·so·on</p></li><li><p><strong><code·class="inline">Format</code></strong>·-·the·mime·type·of·the·documentation,·such·as·<code·class="inline"><<"text/markdown">></code> | 172 | <code·class="inline">elixir</code>,·<code·class="inline">lfe</code>,·<code·class="inline">alpaca</code>,·and·so·on</p></li><li><p><strong><code·class="inline">Format</code></strong>·-·the·mime·type·of·the·documentation,·such·as·<code·class="inline"><<"text/markdown">></code> |
| 173 | or·<code·class="inline"><<"application/erlang+html">></code>.·For·details·of·the·format·used·by·Erlang | 173 | or·<code·class="inline"><<"application/erlang+html">></code>.·For·details·of·the·format·used·by·Erlang |
| 174 | see·the·<a·href="../../../../lib/edoc-1.4/doc/html/doc_storage.html"><code·class="inline">EEP-48·Chapter</code></a>·in·EDoc's·User's | 174 | see·the·<a·href="../../../../lib/edoc-1.4/doc/html/doc_storage.html"><code·class="inline">EEP-48·Chapter</code></a>·in·EDoc's·User's |
| 175 | Guide.</p></li><li><p><strong><code·class="inline">ModuleDoc</code></strong>·-·a·map·with·the·documentation·language·as·key,·such·as | 175 | Guide.</p></li><li><p><strong><code·class="inline">ModuleDoc</code></strong>·-·a·map·with·the·documentation·language·as·key,·such·as |
| 176 | <code·class="inline"><<"en">></code>·or·<code·class="inline"><<"pt_BR">></code>,·and·the·documentation·as·a·binary·value.·It·can | 176 | <code·class="inline"><<"en">></code>·or·<code·class="inline"><<"pt_BR">></code>,·and·the·documentation·as·a·binary·value.·It·can |
| 177 | be·atom·<code·class="inline">none</code>·if·no·documentation·exists·or·the·atom·<code·class="inline">hidden</code>·if | 177 | be·atom·<code·class="inline">none</code>·if·no·documentation·exists·or·the·atom·<code·class="inline">hidden</code>·if |
| Offset 263, 15 lines modified | Offset 263, 15 lines modified | ||
| 263 | ······<p·class="built-using"> | 263 | ······<p·class="built-using"> |
| 264 | ········Built·using | 264 | ········Built·using |
| 265 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 265 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 266 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 266 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 267 | ······</p> | 267 | ······</p> |
| 268 | <p>Copyright·©·1996-202 | 268 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 269 | ····</footer> | 269 | ····</footer> |
| 270 | ··</div> | 270 | ··</div> |
| 271 | </main> | 271 | </main> |
| 272 | </div> | 272 | </div> |
| 273 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 273 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 274 | ··<script> | 274 | ··<script> |
| 275 | ··let·initialized·=·false; | 275 | ··let·initialized·=·false; |
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| 399 | ······<p·class="built-using"> | 399 | ······<p·class="built-using"> |
| 400 | ········Built·using | 400 | ········Built·using |
| 401 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 401 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 402 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 402 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 403 | ······</p> | 403 | ······</p> |
| 404 | <p>Copyright·©·1996-202 | 404 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 405 | ····</footer> | 405 | ····</footer> |
| 406 | ··</div> | 406 | ··</div> |
| 407 | </main> | 407 | </main> |
| 408 | </div> | 408 | </div> |
| 409 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 409 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 410 | ··<script> | 410 | ··<script> |
| 411 | ··let·initialized·=·false; | 411 | ··let·initialized·=·false; |
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| 1311 | ······<p·class="built-using"> | 1311 | ······<p·class="built-using"> |
| 1312 | ········Built·using | 1312 | ········Built·using |
| 1313 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1313 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1314 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1314 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1315 | ······</p> | 1315 | ······</p> |
| 1316 | <p>Copyright·©·1996-202 | 1316 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1317 | ····</footer> | 1317 | ····</footer> |
| 1318 | ··</div> | 1318 | ··</div> |
| 1319 | </main> | 1319 | </main> |
| 1320 | </div> | 1320 | </div> |
| 1321 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1321 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1322 | ··<script> | 1322 | ··<script> |
| 1323 | ··let·initialized·=·false; | 1323 | ··let·initialized·=·false; |
| Offset 1095, 15 lines modified | Offset 1095, 15 lines modified | ||
| 1095 | ······<p·class="built-using"> | 1095 | ······<p·class="built-using"> |
| 1096 | ········Built·using | 1096 | ········Built·using |
| 1097 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1097 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1098 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1098 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1099 | ······</p> | 1099 | ······</p> |
| 1100 | <p>Copyright·©·1996-202 | 1100 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1101 | ····</footer> | 1101 | ····</footer> |
| 1102 | ··</div> | 1102 | ··</div> |
| 1103 | </main> | 1103 | </main> |
| 1104 | </div> | 1104 | </div> |
| 1105 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1105 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1106 | ··<script> | 1106 | ··<script> |
| 1107 | ··let·initialized·=·false; | 1107 | ··let·initialized·=·false; |
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| 351 | ···················Reason·::·address·|·<a·href="file.html#t:posix/0">file:posix</a>().</pre> | 351 | ···················Reason·::·address·|·<a·href="file.html#t:posix/0">file:posix</a>().</pre> |
| 352 | ······</div> | 352 | ······</div> |
| 353 | <p>Called·by·<a·href="net_adm.html"><code·class="inline">net_adm:names/0</code></a>.·<code·class="inline">Host</code>·defaults·to·the·localhost. | 353 | <p>Called·by·<a·href="net_adm.html"><code·class="inline">net_adm:names/0</code></a>.·<code·class="inline">Host</code>·defaults·to·the·localhost. |
| 354 | Returns·the·names·and·associated·port·numbers·of·the·Erlang·nodes·that·<code·class="inline">epmd</code> | 354 | Returns·the·names·and·associated·port·numbers·of·the·Erlang·nodes·that·<code·class="inline">epmd</code> |
| 355 | registered·at·the·specified·host.·Returns·<code·class="inline">{error,·address}</code>·if·<code·class="inline">epmd</code>·is·not | 355 | registered·at·the·specified·host.·Returns·<code·class="inline">{error,·address}</code>·if·<code·class="inline">epmd</code>·is·not |
| 356 | operational.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">(arne@dunn)1>·</span><span·class="nc">erl_epmd</span><span·class="p">:</span><span·class="nf">names</span><span·class="p"·data-group-id=" | 356 | operational.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">(arne@dunn)1>·</span><span·class="nc">erl_epmd</span><span·class="p">:</span><span·class="nf">names</span><span·class="p"·data-group-id="7617320794-1">(</span><span·class="ss">localhost</span><span·class="p"·data-group-id="7617320794-1">)</span><span·class="p">.</span><span·class="w"> |
| 357 | </span><span·class="p"·data-group-id=" | 357 | </span><span·class="p"·data-group-id="7617320794-2">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="p"·data-group-id="7617320794-3">[</span><span·class="p"·data-group-id="7617320794-4">{</span><span·class="s">"arne"</span><span·class="p">,</span><span·class="mi[·...·truncated·by·diffoscope;·len:·161,·SHA:·4e98da0f0f5f9410f7039bdffe373cc2f93b6958868c1a277df67eca58d8ad9d·...·]-2">}</span></code></pre> |
| 358 | ··</section> | 358 | ··</section> |
| 359 | </section> | 359 | </section> |
| 360 | <section·class="detail"·id="port_please/2"> | 360 | <section·class="detail"·id="port_please/2"> |
| 361 | ··<div·class="detail-header"> | 361 | ··<div·class="detail-header"> |
| 362 | ····<a·href="#port_please/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 362 | ····<a·href="#port_please/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 363 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 363 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 550, 15 lines modified | Offset 550, 15 lines modified | ||
| 550 | ······<p·class="built-using"> | 550 | ······<p·class="built-using"> |
| 551 | ········Built·using | 551 | ········Built·using |
| 552 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 552 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 553 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 553 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 554 | ······</p> | 554 | ······</p> |
| 555 | <p>Copyright·©·1996-202 | 555 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 556 | ····</footer> | 556 | ····</footer> |
| 557 | ··</div> | 557 | ··</div> |
| 558 | </main> | 558 | </main> |
| 559 | </div> | 559 | </div> |
| 560 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 560 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 561 | ··<script> | 561 | ··<script> |
| 562 | ··let·initialized·=·false; | 562 | ··let·initialized·=·false; |
| Offset 1232, 28 lines modified | Offset 1232, 28 lines modified | ||
| 1232 | at·the·client·side.</li></ul><p>The·call·<code·class="inline">erpc:multicall(Nodes,·Module,·Function,·Args)</code>·is·equivalent·to·the | 1232 | at·the·client·side.</li></ul><p>The·call·<code·class="inline">erpc:multicall(Nodes,·Module,·Function,·Args)</code>·is·equivalent·to·the |
| 1233 | call·<code·class="inline">erpc:multicall(Nodes,·Module,·Function,·Args,·infinity)</code>.·These·calls·are | 1233 | call·<code·class="inline">erpc:multicall(Nodes,·Module,·Function,·Args,·infinity)</code>.·These·calls·are |
| 1234 | also·equivalent·to·calling·<code·class="inline">my_multicall(Nodes,·Module,·Function,·Args)</code>·below | 1234 | also·equivalent·to·calling·<code·class="inline">my_multicall(Nodes,·Module,·Function,·Args)</code>·below |
| 1235 | if·one·disregard·performance·and·failure·behavior.·<code·class="inline">multicall()</code>·can·utilize·a | 1235 | if·one·disregard·performance·and·failure·behavior.·<code·class="inline">multicall()</code>·can·utilize·a |
| 1236 | selective·receive·optimization·which·removes·the·need·to·scan·the·message·queue | 1236 | selective·receive·optimization·which·removes·the·need·to·scan·the·message·queue |
| 1237 | from·the·beginning·in·order·to·find·a·matching·message.·The | 1237 | from·the·beginning·in·order·to·find·a·matching·message.·The |
| 1238 | <code·class="inline">send_request()/receive_response()</code>·combination·can,·however,·not·utilize·this | 1238 | <code·class="inline">send_request()/receive_response()</code>·combination·can,·however,·not·utilize·this |
| 1239 | optimization.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">my_multicall</span><span·class="p"·data-group-id=" | 1239 | optimization.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">my_multicall</span><span·class="p"·data-group-id="6694666239-1">(</span><span·class="n">Nodes</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Module</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Function</span><span·class="p">,</span><span·class="w">·</span><s[·...·truncated·by·diffoscope;·len:·66,·SHA:·e50cefe7f82d01487b37b6643dbbdddf0fa5ce49bd5979fd6b11c1810ffbca44·...·]-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 1240 | ··</span><span·class="n">ReqIds</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">map</span><span·class="p"·data-group-id=" | 1240 | ··</span><span·class="n">ReqIds</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">map</span><span·class="p"·data-group-id="6694666239-2">(</span><span·class="nf">fun</span><span·class="w">·</span><span·class="p"·data-group-id="6694666239-3">(</span><span·class="n">Node</span><span·class="p"·data-group-id="6694666239-3">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 1241 | ·······················</span><span·class="nc">erpc</span><span·class="p">:</span><span·class="nf">send_request</span><span·class="p"·data-group-id=" | 1241 | ·······················</span><span·class="nc">erpc</span><span·class="p">:</span><span·class="nf">send_request</span><span·class="p"·data-group-id="6694666239-4">(</span><span·class="n">Node</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Module</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Function</span><span·class="p">,</span><span·class="w">·</span><sp[·...·truncated·by·diffoscope;·len:·65,·SHA:·eb067e65aee68f9502c2c86183e35c9684ddef278951ccaba018879d926eaf2e·...·]-4">)</span><span·class="w"> |
| 1242 | ·····················</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> | 1242 | ·····················</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> |
| 1243 | ·····················</span><span·class="n">Nodes</span><span·class="p"·data-group-id=" | 1243 | ·····················</span><span·class="n">Nodes</span><span·class="p"·data-group-id="6694666239-2">)</span><span·class="p">,</span><span·class="w"> |
| 1244 | ··</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">map</span><span·class="p"·data-group-id=" | 1244 | ··</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">map</span><span·class="p"·data-group-id="6694666239-5">(</span><span·class="nf">fun</span><span·class="w">·</span><span·class="p"·data-group-id="6694666239-6">(</span><span·class="n">ReqId</span><span·class="p"·data-group-id="6694666239-6">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 1245 | ··············</span><span·class="k">try</span><span·class="w"> | 1245 | ··············</span><span·class="k">try</span><span·class="w"> |
| 1246 | ················</span><span·class="p"·data-group-id=" | 1246 | ················</span><span·class="p"·data-group-id="6694666239-7">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="nc">erpc</span><span·class="p">:</span><span·class="nf">receive_response</span><span·class="p"·data-group-id="6694666239-8">(</span><span·class="n"[·...·truncated·by·diffoscope;·len:·187,·SHA:·97ba54b49f2fc0dd0e2adddbabeb5f5291461dda5a7ec5bf0bb559c25d00004a·...·]-7">}</span><span·class="w"> |
| 1247 | ··············</span><span·class="k">catch</span><span·class="w"> | 1247 | ··············</span><span·class="k">catch</span><span·class="w"> |
| 1248 | ················</span><span·class="n">Class</span><span·class="p">:</span><span·class="n">Reason</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 1248 | ················</span><span·class="n">Class</span><span·class="p">:</span><span·class="n">Reason</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 1249 | ··················</span><span·class="p"·data-group-id=" | 1249 | ··················</span><span·class="p"·data-group-id="6694666239-9">{</span><span·class="n">Class</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Reason</span><span·class="p"·data-group-id="6694666239-9">}</span><span·class="w"> |
| 1250 | ··············</span><span·class="k">end</span><span·class="w"> | 1250 | ··············</span><span·class="k">end</span><span·class="w"> |
| 1251 | ············</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> | 1251 | ············</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> |
| 1252 | ············</span><span·class="n">ReqIds</span><span·class="p"·data-group-id=" | 1252 | ············</span><span·class="n">ReqIds</span><span·class="p"·data-group-id="6694666239-5">)</span><span·class="p">.</span></code></pre><p>If·an·<code·class="inline">erpc</code>·operation·fails,·but·it·is·unknown·if·the·function·is/will·be |
| 1253 | applied·(that·is,·a·timeout,·connection·loss,·or·an·improper·<code·class="inline">Nodes</code>·list),·the | 1253 | applied·(that·is,·a·timeout,·connection·loss,·or·an·improper·<code·class="inline">Nodes</code>·list),·the |
| 1254 | caller·will·not·receive·any·further·information·about·the·result·if/when·the | 1254 | caller·will·not·receive·any·further·information·about·the·result·if/when·the |
| 1255 | applied·function·completes.·If·the·applied·function·communicates·with·the | 1255 | applied·function·completes.·If·the·applied·function·communicates·with·the |
| 1256 | calling·process,·such·communication·may,·of·course,·reach·the·calling·process.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>If·the·<code·class="inline">always_spawn</code>·option·is·<code·class="inline">false</code>·(which·is·the·default),·you·cannot·make | 1256 | calling·process,·such·communication·may,·of·course,·reach·the·calling·process.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>If·the·<code·class="inline">always_spawn</code>·option·is·<code·class="inline">false</code>·(which·is·the·default),·you·cannot·make |
| 1257 | <em>any</em>·assumptions·about·the·processes·that·will·perform·the·<code·class="inline">apply()</code>s.·It·may·be | 1257 | <em>any</em>·assumptions·about·the·processes·that·will·perform·the·<code·class="inline">apply()</code>s.·It·may·be |
| 1258 | the·calling·process·itself,·or·freshly·spawned·processes,·or·a·mix·of·both.</p></section> | 1258 | the·calling·process·itself,·or·freshly·spawned·processes,·or·a·mix·of·both.</p></section> |
| 1259 | ··</section> | 1259 | ··</section> |
| Offset 1394, 17 lines modified | Offset 1394, 17 lines modified | ||
| 1394 | exception·if/when·an·invalid·<code·class="inline">RequestId</code>·is·detected·or·if·an·invalid·<code·class="inline">Timeout</code> | 1394 | exception·if/when·an·invalid·<code·class="inline">RequestId</code>·is·detected·or·if·an·invalid·<code·class="inline">Timeout</code> |
| 1395 | is·passed.</p><p>A·call·to·the·function·<code·class="inline">my_call(Node,·Module,·Function,·Args,·Timeout)</code>·below·is | 1395 | is·passed.</p><p>A·call·to·the·function·<code·class="inline">my_call(Node,·Module,·Function,·Args,·Timeout)</code>·below·is |
| 1396 | equivalent·to·the·call | 1396 | equivalent·to·the·call |
| 1397 | <a·href="#call/5"><code·class="inline">erpc:call(Node,·Module,·Function,·Args,·Timeout)</code></a>·if·one·disregards | 1397 | <a·href="#call/5"><code·class="inline">erpc:call(Node,·Module,·Function,·Args,·Timeout)</code></a>·if·one·disregards |
| 1398 | performance.·<code·class="inline">call()</code>·can·utilize·a·selective·receive·optimization·which·removes | 1398 | performance.·<code·class="inline">call()</code>·can·utilize·a·selective·receive·optimization·which·removes |
| 1399 | the·need·to·scan·the·message·queue·from·the·beginning·in·order·to·find·a | 1399 | the·need·to·scan·the·message·queue·from·the·beginning·in·order·to·find·a |
| 1400 | matching·message.·The·<code·class="inline">send_request()/receive_response()</code>·combination·can, | 1400 | matching·message.·The·<code·class="inline">send_request()/receive_response()</code>·combination·can, |
| 1401 | however,·not·utilize·this·optimization.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">my_call</span><span·class="p"·data-group-id=" | 1401 | however,·not·utilize·this·optimization.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">my_call</span><span·class="p"·data-group-id="4427719412-1">(</span><span·class="n">Node</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Module</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Function</span><span·class="p">,</span><span·class="w">·</span><sp[·...·truncated·by·diffoscope;·len:·143,·SHA:·214543664e42769a6cd9097fcf87989e3e1db6228eb9bb194e2de88a1a203cd7·...·]-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 1402 | ··</span><span·class="n">RequestId</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">erpc</span><span·class="p">:</span><span·class="nf">send_request</span><span·class="p"·data-group-id=" | 1402 | ··</span><span·class="n">RequestId</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">erpc</span><span·class="p">:</span><span·class="nf">send_request</span><span·class="p"·data-group-id="4427719412-2">(</span><span·class="n">Node</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Module</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Function</span><span·class="p">,</span><span·class="w">·</span><sp[·...·truncated·by·diffoscope;·len:·65,·SHA:·9b538e4682c17293a4ce61ee4274818acea2b060c148e90d7e01dbda207a45e4·...·]-2">)</span><span·class="p">,</span><span·class="w"> |
| 1403 | ··</span><span·class="nc">erpc</span><span·class="p">:</span><span·class="nf">receive_response</span><span·class="p"·data-group-id=" | 1403 | ··</span><span·class="nc">erpc</span><span·class="p">:</span><span·class="nf">receive_response</span><span·class="p"·data-group-id="4427719412-3">(</span><span·class="n">RequestId</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Timeout</span><span·class="p"·data-group-id="4427719412-3">)</span><span·class="p">.</span></code></pre><p>If·the·<code·class="inline">erpc</code>·operation·fails,·but·it·is·unknown·if·the·function·is/will·be |
| 1404 | applied·(that·is,·a·timeout,·or·a·connection·loss),·the·caller·will·not·receive | 1404 | applied·(that·is,·a·timeout,·or·a·connection·loss),·the·caller·will·not·receive |
| 1405 | any·further·information·about·the·result·if/when·the·applied·function·completes. | 1405 | any·further·information·about·the·result·if/when·the·applied·function·completes. |
| 1406 | If·the·applied·function·explicitly·communicates·with·the·calling·process,·such | 1406 | If·the·applied·function·explicitly·communicates·with·the·calling·process,·such |
| 1407 | communication·may,·of·course,·reach·the·calling·process.</p> | 1407 | communication·may,·of·course,·reach·the·calling·process.</p> |
| 1408 | ··</section> | 1408 | ··</section> |
| 1409 | </section> | 1409 | </section> |
| 1410 | <section·class="detail"·id="receive_response/3"> | 1410 | <section·class="detail"·id="receive_response/3"> |
| Offset 1684, 17 lines modified | Offset 1684, 17 lines modified | ||
| 1684 | about·to·save·the·request·identifier·in·a·request·identifier·collection,·you·may | 1684 | about·to·save·the·request·identifier·in·a·request·identifier·collection,·you·may |
| 1685 | want·to·consider·using·<a·href="#send_request/6"><code·class="inline">send_request/6</code></a>·instead.</p><p>A·call·to·the·function·<code·class="inline">my_call(Node,·Module,·Function,·Args,·Timeout)</code>·below·is | 1685 | want·to·consider·using·<a·href="#send_request/6"><code·class="inline">send_request/6</code></a>·instead.</p><p>A·call·to·the·function·<code·class="inline">my_call(Node,·Module,·Function,·Args,·Timeout)</code>·below·is |
| 1686 | equivalent·to·the·call | 1686 | equivalent·to·the·call |
| 1687 | <a·href="#call/5"><code·class="inline">erpc:call(Node,·Module,·Function,·Args,·Timeout)</code></a>·if·one·disregards | 1687 | <a·href="#call/5"><code·class="inline">erpc:call(Node,·Module,·Function,·Args,·Timeout)</code></a>·if·one·disregards |
| 1688 | performance.·<code·class="inline">call()</code>·can·utilize·a·selective·receive·optimization·which·removes | 1688 | performance.·<code·class="inline">call()</code>·can·utilize·a·selective·receive·optimization·which·removes |
| 1689 | the·need·to·scan·the·message·queue·from·the·beginning·in·order·to·find·a | 1689 | the·need·to·scan·the·message·queue·from·the·beginning·in·order·to·find·a |
| 1690 | matching·message.·The·<code·class="inline">send_request()/receive_response()</code>·combination·can, | 1690 | matching·message.·The·<code·class="inline">send_request()/receive_response()</code>·combination·can, |
| 1691 | however,·not·utilize·this·optimization.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">my_call</span><span·class="p"·data-group-id=" | 1691 | however,·not·utilize·this·optimization.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">my_call</span><span·class="p"·data-group-id="0750567582-1">(</span><span·class="n">Node</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Module</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Function</span><span·class="p">,</span><span·class="w">·</span><sp[·...·truncated·by·diffoscope;·len:·143,·SHA:·0ca48aed8060bcd7b1ab9b7dbef2d9c6b3c60c2537dd2943d33922c463493b41·...·]-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 1692 | ··</span><span·class="n">RequestId</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">erpc</span><span·class="p">:</span><span·class="nf">send_request</span><span·class="p"·data-group-id=" | 1692 | ··</span><span·class="n">RequestId</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">erpc</span><span·class="p">:</span><span·class="nf">send_request</span><span·class="p"·data-group-id="0750567582-2">(</span><span·class="n">Node</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Module</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Function</span><span·class="p">,</span><span·class="w">·</span><sp[·...·truncated·by·diffoscope;·len:·65,·SHA:·34c9330f88c47f87a62183c2653261658f5213a032241ca86deb4b2a7a18eace·...·]-2">)</span><span·class="p">,</span><span·class="w"> |
| 1693 | ··</span><span·class="nc">erpc</span><span·class="p">:</span><span·class="nf">receive_response</span><span·class="p"·data-group-id=" | 1693 | ··</span><span·class="nc">erpc</span><span·class="p">:</span><span·class="nf">receive_response</span><span·class="p"·data-group-id="0750567582-3">(</span><span·class="n">RequestId</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Timeout</span><span·class="p"·data-group-id="0750567582-3">)</span><span·class="p">.</span></code></pre><p>Fails·with·an·<code·class="inline">{erpc,·badarg}</code>·<code·class="inline">error</code>·exception·if:</p><ul><li><code·class="inline">Node</code>·is·not·an·atom.</li><li><code·class="inline">Module</code>·is·not·an·atom.</li><li><code·class="inline">Function</code>·is·not·an·atom.</li><li><code·class="inline">Args</code>·is·not·a·list.·Note·that·the·list·is·not·verified·to·be·a·proper·list |
| 1694 | at·the·client·side.</li></ul><p>Equivalent·to | 1694 | at·the·client·side.</li></ul><p>Equivalent·to |
| 1695 | <a·href="#send_request/6"><code·class="inline">erpc:send_request(Node,·erlang,·apply,·[Fun,[]]),·Label,·RequestIdCollection)</code></a>.</p><p>Fails·with·an·<code·class="inline">{erpc,·badarg}</code>·<code·class="inline">error</code>·exception·if:</p><ul><li><code·class="inline">Node</code>·is·not·an·atom.</li><li><code·class="inline">Fun</code>·is·not·a·fun·of·zero·arity.</li><li><code·class="inline">RequestIdCollection</code>·is·detected·not·to·be·request·identifier·collection.</li></ul> | 1695 | <a·href="#send_request/6"><code·class="inline">erpc:send_request(Node,·erlang,·apply,·[Fun,[]]),·Label,·RequestIdCollection)</code></a>.</p><p>Fails·with·an·<code·class="inline">{erpc,·badarg}</code>·<code·class="inline">error</code>·exception·if:</p><ul><li><code·class="inline">Node</code>·is·not·an·atom.</li><li><code·class="inline">Fun</code>·is·not·a·fun·of·zero·arity.</li><li><code·class="inline">RequestIdCollection</code>·is·detected·not·to·be·request·identifier·collection.</li></ul> |
| 1696 | ··</section> | 1696 | ··</section> |
| 1697 | </section> | 1697 | </section> |
| 1698 | <section·class="detail"·id="send_request/6"> | 1698 | <section·class="detail"·id="send_request/6"> |
| 1699 | ··<div·class="detail-header"> | 1699 | ··<div·class="detail-header"> |
| Offset 1913, 15 lines modified | Offset 1913, 15 lines modified | ||
| 1913 | ······<p·class="built-using"> | 1913 | ······<p·class="built-using"> |
| 1914 | ········Built·using | 1914 | ········Built·using |
| 1915 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1915 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1916 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1916 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1917 | ······</p> | 1917 | ······</p> |
| 1918 | <p>Copyright·©·1996-202 | 1918 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1919 | ····</footer> | 1919 | ····</footer> |
| 1920 | ··</div> | 1920 | ··</div> |
| 1921 | </main> | 1921 | </main> |
| 1922 | </div> | 1922 | </div> |
| 1923 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1923 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1924 | ··<script> | 1924 | ··<script> |
| 1925 | ··let·initialized·=·false; | 1925 | ··let·initialized·=·false; |
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| 325 | ······<p·class="built-using"> | 325 | ······<p·class="built-using"> |
| 326 | ········Built·using | 326 | ········Built·using |
| 327 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 327 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 328 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 328 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 329 | ······</p> | 329 | ······</p> |
| 330 | <p>Copyright·©·1996-202 | 330 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 331 | ····</footer> | 331 | ····</footer> |
| 332 | ··</div> | 332 | ··</div> |
| 333 | </main> | 333 | </main> |
| 334 | </div> | 334 | </div> |
| 335 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 335 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 336 | ··<script> | 336 | ··<script> |
| 337 | ··let·initialized·=·false; | 337 | ··let·initialized·=·false; |
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| 1204 | ······<p·class="built-using"> | 1204 | ······<p·class="built-using"> |
| 1205 | ········Built·using | 1205 | ········Built·using |
| 1206 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1206 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1207 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1207 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1208 | ······</p> | 1208 | ······</p> |
| 1209 | <p>Copyright·©·1996-202 | 1209 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1210 | ····</footer> | 1210 | ····</footer> |
| 1211 | ··</div> | 1211 | ··</div> |
| 1212 | </main> | 1212 | </main> |
| 1213 | </div> | 1213 | </div> |
| 1214 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1214 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1215 | ··<script> | 1215 | ··<script> |
| 1216 | ··let·initialized·=·false; | 1216 | ··let·initialized·=·false; |
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| 175 | running·its·file·server·as·slave·to·the·file·server·of·another·node,·and·the | 175 | running·its·file·server·as·slave·to·the·file·server·of·another·node,·and·the |
| 176 | other·node·runs·on·some·other·host·machine,·they·can·have·different·file | 176 | other·node·runs·on·some·other·host·machine,·they·can·have·different·file |
| 177 | systems.·However,·this·is·seldom·a·problem.</p></section><p><a·href="#open/2"><code·class="inline">open/2</code></a>·can·be·given·the·options·<code·class="inline">delayed_write</code>·and·<code·class="inline">read_ahead</code>·to·turn·on | 177 | systems.·However,·this·is·seldom·a·problem.</p></section><p><a·href="#open/2"><code·class="inline">open/2</code></a>·can·be·given·the·options·<code·class="inline">delayed_write</code>·and·<code·class="inline">read_ahead</code>·to·turn·on |
| 178 | caching,·which·will·reduce·the·number·of·operating·system·calls·and·greatly | 178 | caching,·which·will·reduce·the·number·of·operating·system·calls·and·greatly |
| 179 | improve·performance·for·small·reads·and·writes.·However,·the·overhead·won't | 179 | improve·performance·for·small·reads·and·writes.·However,·the·overhead·won't |
| 180 | disappear·completely·and·it's·best·to·keep·the·number·of·file·operations·to·a | 180 | disappear·completely·and·it's·best·to·keep·the·number·of·file·operations·to·a |
| 181 | minimum.·As·a·contrived·example,·the·following·function·writes·4MB·in·2.5 | 181 | minimum.·As·a·contrived·example,·the·following·function·writes·4MB·in·2.5 |
| 182 | seconds·when·tested:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">create_file_slow</span><span·class="p"·data-group-id=" | 182 | seconds·when·tested:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">create_file_slow</span><span·class="p"·data-group-id="3417966582-1">(</span><span·class="n">Name</span><span·class="p"·data-group-id="3417966582-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 183 | ····</span><span·class="p"·data-group-id=" | 183 | ····</span><span·class="p"·data-group-id="3417966582-2">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Fd</span><span·class="p"·data-group-id="3417966582-2">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·clas[·...·truncated·by·diffoscope;·len:·612,·SHA:·8a6a7585e1b6c458acd122f12d7c17674576c32f63bfd592d67e154084008f3a·...·]-3">)</span><span·class="p">,</span><span·class="w"> |
| 184 | ····</span><span·class="nf">create_file_slow_1</span><span·class="p"·data-group-id=" | 184 | ····</span><span·class="nf">create_file_slow_1</span><span·class="p"·data-group-id="3417966582-5">(</span><span·class="n">Fd</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">4</span><span·class="w">·</span><span·class="ow">bsl</span><span·class="w">·</span><span·class="mi">20</span><span·class="p"·data-group-id="3417[·...·truncated·by·diffoscope;·len:·6,·SHA:·18bd456176271a34be84135ea68796e8caf11c9ef61609586fdea2d45db04e5b·...·]-5">)</span><span·class="p">,</span><span·class="w"> |
| 185 | ····</span><span·class="nc">file</span><span·class="p">:</span><span·class="nf">close</span><span·class="p"·data-group-id=" | 185 | ····</span><span·class="nc">file</span><span·class="p">:</span><span·class="nf">close</span><span·class="p"·data-group-id="3417966582-6">(</span><span·class="n">Fd</span><span·class="p"·data-group-id="3417966582-6">)</span><span·class="p">.</span><span·class="w"> |
| 186 | </span><span·class="nf">create_file_slow_1</span><span·class="p"·data-group-id=" | 186 | </span><span·class="nf">create_file_slow_1</span><span·class="p"·data-group-id="3417966582-7">(</span><span·class="p">_</span><span·class="n">Fd</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">0</span><span·class="p"·data-group-id="3417966582-7">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 187 | ····</span><span·class="ss">ok</span><span·class="p">;</span><span·class="w"> | 187 | ····</span><span·class="ss">ok</span><span·class="p">;</span><span·class="w"> |
| 188 | </span><span·class="nf">create_file_slow_1</span><span·class="p"·data-group-id=" | 188 | </span><span·class="nf">create_file_slow_1</span><span·class="p"·data-group-id="3417966582-8">(</span><span·class="n">Fd</span><span·class="p">,</span><span·class="w">·</span><span·class="n">M</span><span·class="p"·data-group-id="3417966582-8">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 189 | ····</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">file</span><span·class="p">:</span><span·class="nf">write</span><span·class="p"·data-group-id=" | 189 | ····</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">file</span><span·class="p">:</span><span·class="nf">write</span><span·class="p"·data-group-id="3417966582-9">(</span><span·class="n">Fd</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3417966582-10"><<</span><span·class="mi">0</span><span·class="p"·data-group-id="3417966582-10">>></span><span·class="p[·...·truncated·by·diffoscope;·len:·27,·SHA:·88e83209ce82bc8be619e22d9a0ed3b3ba7c4dcff0da85e676848fbe5ec6731e·...·]-9">)</span><span·class="p">,</span><span·class="w"> |
| 190 | ····</span><span·class="nf">create_file_slow_1</span><span·class="p"·data-group-id=" | 190 | ····</span><span·class="nf">create_file_slow_1</span><span·class="p"·data-group-id="3417966582-11">(</span><span·class="n">Fd</span><span·class="p">,</span><span·class="w">·</span><span·class="n">M</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="mi">1</span><span·class="p"·data-group-id="34179665[·...·truncated·by·diffoscope;·len:·2,·SHA:·a46e37632fa6ca51a13fe39a567b3c23b28c2f47d8af6be9bd63e030e214ba38·...·]-11">)</span><span·class="p">.</span></code></pre><p>The·following·functionally·equivalent·code·writes·128·bytes·per·call·to |
| 191 | <a·href="#write/2"><code·class="inline">write/2</code></a>·and·so·does·the·same·work·in·0.08·seconds,·which·is·roughly·30·times | 191 | <a·href="#write/2"><code·class="inline">write/2</code></a>·and·so·does·the·same·work·in·0.08·seconds,·which·is·roughly·30·times |
| 192 | faster:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">create_file</span><span·class="p"·data-group-id=" | 192 | faster:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">create_file</span><span·class="p"·data-group-id="1900608592-1">(</span><span·class="n">Name</span><span·class="p"·data-group-id="1900608592-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 193 | ····</span><span·class="p"·data-group-id=" | 193 | ····</span><span·class="p"·data-group-id="1900608592-2">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Fd</span><span·class="p"·data-group-id="1900608592-2">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·clas[·...·truncated·by·diffoscope;·len:·612,·SHA:·2d263a72b48b2121ed0e13169df9ed884f343f78ec42bd39cf98ec1753baa5a5·...·]-3">)</span><span·class="p">,</span><span·class="w"> |
| 194 | ····</span><span·class="nf">create_file_1</span><span·class="p"·data-group-id=" | 194 | ····</span><span·class="nf">create_file_1</span><span·class="p"·data-group-id="1900608592-5">(</span><span·class="n">Fd</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">4</span><span·class="w">·</span><span·class="ow">bsl</span><span·class="w">·</span><span·class="mi">20</span><span·class="p"·data-group-id="1900[·...·truncated·by·diffoscope;·len:·6,·SHA:·1bc7a2fdf17369d8e5347c0edcdeed31b67ca1d4323a856df3bdebbbfc96f32c·...·]-5">)</span><span·class="p">,</span><span·class="w"> |
| 195 | ····</span><span·class="nc">file</span><span·class="p">:</span><span·class="nf">close</span><span·class="p"·data-group-id=" | 195 | ····</span><span·class="nc">file</span><span·class="p">:</span><span·class="nf">close</span><span·class="p"·data-group-id="1900608592-6">(</span><span·class="n">Fd</span><span·class="p"·data-group-id="1900608592-6">)</span><span·class="p">,</span><span·class="w"> |
| 196 | ····</span><span·class="ss">ok</span><span·class="p">.</span><span·class="w"> | 196 | ····</span><span·class="ss">ok</span><span·class="p">.</span><span·class="w"> |
| 197 | </span><span·class="nf">create_file_1</span><span·class="p"·data-group-id=" | 197 | </span><span·class="nf">create_file_1</span><span·class="p"·data-group-id="1900608592-7">(</span><span·class="p">_</span><span·class="n">Fd</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">0</span><span·class="p"·data-group-id="1900608592-7">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 198 | ····</span><span·class="ss">ok</span><span·class="p">;</span><span·class="w"> | 198 | ····</span><span·class="ss">ok</span><span·class="p">;</span><span·class="w"> |
| 199 | </span><span·class="nf">create_file_1</span><span·class="p"·data-group-id=" | 199 | </span><span·class="nf">create_file_1</span><span·class="p"·data-group-id="1900608592-8">(</span><span·class="n">Fd</span><span·class="p">,</span><span·class="w">·</span><span·class="n">M</span><span·class="p"·data-group-id="1900608592-8">)</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><span·class="n">M</span><span·class="w">·</span><span·class="o">>=</span><span·class="w">·</span><span·class="mi">128</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 200 | ····</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">file</span><span·class="p">:</span><span·class="nf">write</span><span·class="p"·data-group-id=" | 200 | ····</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">file</span><span·class="p">:</span><span·class="nf">write</span><span·class="p"·data-group-id="1900608592-9">(</span><span·class="n">Fd</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1900608592-10"><<</span><span·class="mi">0</span><span·class="p">:</span><span·class="p"·data-group-id="1900608592-11">(</sp[·...·truncated·by·diffoscope;·len:·287,·SHA:·a5b94087a5faf2cfe33fea987b904f7fe5535b2fc7e2468b48e2097a85efa2c9·...·]-9">)</span><span·class="p">,</span><span·class="w"> |
| 201 | ····</span><span·class="nf">create_file_1</span><span·class="p"·data-group-id=" | 201 | ····</span><span·class="nf">create_file_1</span><span·class="p"·data-group-id="1900608592-12">(</span><span·class="n">Fd</span><span·class="p">,</span><span·class="w">·</span><span·class="n">M</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="mi">128</span><span·class="p"·data-group-id="190060[·...·truncated·by·diffoscope;·len:·4,·SHA:·1724d7333046d2818a4a1b1edf16da3e4af6ff939f16f790f3d787909db9194d·...·]-12">)</span><span·class="p">;</span><span·class="w"> |
| 202 | </span><span·class="nf">create_file_1</span><span·class="p"·data-group-id=" | 202 | </span><span·class="nf">create_file_1</span><span·class="p"·data-group-id="1900608592-13">(</span><span·class="n">Fd</span><span·class="p">,</span><span·class="w">·</span><span·class="n">M</span><span·class="p"·data-group-id="1900608592-13">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 203 | ····</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">file</span><span·class="p">:</span><span·class="nf">write</span><span·class="p"·data-group-id=" | 203 | ····</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">file</span><span·class="p">:</span><span·class="nf">write</span><span·class="p"·data-group-id="1900608592-14">(</span><span·class="n">Fd</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1900608592-15"><<</span><span·class="mi">0</span><span·class="p">:</span><span·class="p"·data-group-id="1900608592-16">(</s[·...·truncated·by·diffoscope;·len:·285,·SHA:·eea6c1f8efe6e7ec6021127740115e4072e7e7e46c39518a416ab7f4099a0783·...·]-14">)</span><span·class="p">,</span><span·class="w"> |
| 204 | ····</span><span·class="nf">create_file_1</span><span·class="p"·data-group-id=" | 204 | ····</span><span·class="nf">create_file_1</span><span·class="p"·data-group-id="1900608592-17">(</span><span·class="n">Fd</span><span·class="p">,</span><span·class="w">·</span><span·class="n">M</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="mi">1</span><span·class="p"·data-group-id="19006085[·...·truncated·by·diffoscope;·len:·2,·SHA:·8241649609f88ccd2a0a5b233a07a538ec313ff6adf695aa44a969dbca39f67d·...·]-17">)</span><span·class="p">.</span></code></pre><p>When·writing·data·it's·generally·more·efficient·to·write·a·list·of·binaries |
| 205 | rather·than·a·list·of·integers.·It·is·not·needed·to·flatten·a·deep·list·before | 205 | rather·than·a·list·of·integers.·It·is·not·needed·to·flatten·a·deep·list·before |
| 206 | writing.·On·Unix·hosts,·scatter·output,·which·writes·a·set·of·buffers·in·one | 206 | writing.·On·Unix·hosts,·scatter·output,·which·writes·a·set·of·buffers·in·one |
| 207 | operation,·is·used·when·possible.·In·this·way | 207 | operation,·is·used·when·possible.·In·this·way |
| 208 | <a·href="#write/2"><code·class="inline">write(FD,·[Bin1,·Bin2·|·Bin3])</code></a>·writes·the·contents·of·the | 208 | <a·href="#write/2"><code·class="inline">write(FD,·[Bin1,·Bin2·|·Bin3])</code></a>·writes·the·contents·of·the |
| 209 | binaries·without·copying·the·data·at·all,·except·for·perhaps·deep·down·in·the | 209 | binaries·without·copying·the·data·at·all,·except·for·perhaps·deep·down·in·the |
| 210 | operating·system·kernel.</p><section·role="note"·class="admonition·warning"><h4·class="admonition-title·warning">Warning</h4><p>If·an·error·occurs·when·accessing·an·open·file·with·module·<a·href="../../../../lib/stdlib-7.0/doc/html/io.html"><code·class="inline">io</code></a>,·the·process | 210 | operating·system·kernel.</p><section·role="note"·class="admonition·warning"><h4·class="admonition-title·warning">Warning</h4><p>If·an·error·occurs·when·accessing·an·open·file·with·module·<a·href="../../../../lib/stdlib-7.0/doc/html/io.html"><code·class="inline">io</code></a>,·the·process |
| 211 | handling·the·file·exits.·The·dead·file·process·can·hang·if·a·process·tries·to | 211 | handling·the·file·exits.·The·dead·file·process·can·hang·if·a·process·tries·to |
| Offset 1954, 16 lines modified | Offset 1954, 16 lines modified | ||
| 1954 | ······</div> | 1954 | ······</div> |
| 1955 | <p>Reads·Erlang·terms,·separated·by·<code·class="inline">.</code>,·from·<code·class="inline">Filename</code>.·Returns·one·of·the | 1955 | <p>Reads·Erlang·terms,·separated·by·<code·class="inline">.</code>,·from·<code·class="inline">Filename</code>.·Returns·one·of·the |
| 1956 | following:</p><ul><li><p><strong><code·class="inline">{ok,·Terms}</code></strong>·-·The·file·was·successfully·read.</p></li><li><p><strong><code·class="inline">{error,·atom()}</code></strong>·-·An·error·occurred·when·opening·the·file·or·reading·it. | 1956 | following:</p><ul><li><p><strong><code·class="inline">{ok,·Terms}</code></strong>·-·The·file·was·successfully·read.</p></li><li><p><strong><code·class="inline">{error,·atom()}</code></strong>·-·An·error·occurred·when·opening·the·file·or·reading·it. |
| 1957 | For·a·list·of·typical·error·codes,·see·<a·href="#open/2"><code·class="inline">open/2</code></a>.</p></li><li><p><strong><code·class="inline">{error,·{Line,·Mod,·Term}}</code></strong>·-·An·error·occurred·when·interpreting·the | 1957 | For·a·list·of·typical·error·codes,·see·<a·href="#open/2"><code·class="inline">open/2</code></a>.</p></li><li><p><strong><code·class="inline">{error,·{Line,·Mod,·Term}}</code></strong>·-·An·error·occurred·when·interpreting·the |
| 1958 | Erlang·terms·in·the·file.·To·convert·the·three-element·tuple·to·an·English | 1958 | Erlang·terms·in·the·file.·To·convert·the·three-element·tuple·to·an·English |
| 1959 | description·of·the·error,·use·<a·href="#format_error/1"><code·class="inline">format_error/1</code></a>.</p></li></ul><p><em>Example:</em></p><pre><code·class="text">f.txt:··{person,·"kalle",·25}. | 1959 | description·of·the·error,·use·<a·href="#format_error/1"><code·class="inline">format_error/1</code></a>.</p></li></ul><p><em>Example:</em></p><pre><code·class="text">f.txt:··{person,·"kalle",·25}. |
| 1960 | ········{person,·"pelle",·30}.</code></pre><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">file</span><span·class="p">:</span><span·class="nf">consult</span><span·class="p"·data-group-id=" | 1960 | ········{person,·"pelle",·30}.</code></pre><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">file</span><span·class="p">:</span><span·class="nf">consult</span><span·class="p"·data-group-id="1657373106-1">(</span><span·class="s">"f.txt"</span><span·class="p"·data-group-id="1657373106-1">)</span><span·class="p">.</span><span·class="w"> |
| 1961 | </span><span·class="p"·data-group-id=" | 1961 | </span><span·class="p"·data-group-id="1657373106-2">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="p"·data-group-id="1657373106-3">[</span><span·class="p"·data-group-id="1657373106-4">{</span><span·class="ss">person</span><span·class="p">,</span><span·class="s">"ka[·...·truncated·by·diffoscope;·len:·487,·SHA:·f4add45c706ccd78a22d7e4691aeaec731475c656818697e5c9a47ca0c2ce08e·...·]-2">}</span></code></pre><p>The·encoding·of·<code·class="inline">Filename</code>·can·be·set·by·a·comment,·as·described·in |
| 1962 | <a·href="../../../../lib/stdlib-7.0/doc/html/epp.html#encoding"><code·class="inline">epp</code></a>.</p> | 1962 | <a·href="../../../../lib/stdlib-7.0/doc/html/epp.html#encoding"><code·class="inline">epp</code></a>.</p> |
| 1963 | ··</section> | 1963 | ··</section> |
| 1964 | </section> | 1964 | </section> |
| 1965 | <section·class="detail"·id="copy/2"> | 1965 | <section·class="detail"·id="copy/2"> |
| 1966 | ··<div·class="detail-header"> | 1966 | ··<div·class="detail-header"> |
| 1967 | ····<a·href="#copy/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 1967 | ····<a·href="#copy/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| Offset 3243, 15 lines modified | Offset 3243, 15 lines modified | ||
| 3243 | ····························FileInfo·::·<a·href="#t:file_info/0">file_info</a>(), | 3243 | ····························FileInfo·::·<a·href="#t:file_info/0">file_info</a>(), |
| 3244 | ····························Reason·::·<a·href="#t:posix/0">posix</a>()·|·badarg.</pre> | 3244 | ····························Reason·::·<a·href="#t:posix/0">posix</a>()·|·badarg.</pre> |
| 3245 | ······</div> | 3245 | ······</div> |
| 3246 | <p>Retrieves·information·about·a·file.·Returns·<code·class="inline">{ok,·FileInfo}</code>·if·successful, | 3246 | <p>Retrieves·information·about·a·file.·Returns·<code·class="inline">{ok,·FileInfo}</code>·if·successful, |
| 3247 | otherwise·<code·class="inline">{error,·Reason}</code>.</p><p><code·class="inline">FileInfo</code>·is·a·record·<code·class="inline">file_info</code>,·defined·in·the·Kernel·include·file·<code·class="inline">file.hrl</code>. | 3247 | otherwise·<code·class="inline">{error,·Reason}</code>.</p><p><code·class="inline">FileInfo</code>·is·a·record·<code·class="inline">file_info</code>,·defined·in·the·Kernel·include·file·<code·class="inline">file.hrl</code>. |
| 3248 | Include·the·following·directive·in·the·module·from·which·the·function·is·called:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id=" | 3248 | Include·the·following·directive·in·the·module·from·which·the·function·is·called:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id="2333557997-1">(</span><span·class="s">"kernel/include/file.hrl"</span><span·class="p"·data-group-id="2333557997-1">)</span><span·class="p">.</span></code></pre><p>The·time·type·returned·in·<code·class="inline">atime</code>,·<code·class="inline">mtime</code>,·and·<code·class="inline">ctime</code>·is·dependent·on·the·time |
| 3249 | type·set·in·<code·class="inline">Opts·::·{time,·Type}</code>·as·follows:</p><ul><li><p><strong><code·class="inline">local</code></strong>·-·Returns·local·time.</p></li><li><p><strong><code·class="inline">universal</code></strong>·-·Returns·universal·time.</p></li><li><p><strong><code·class="inline">posix</code></strong>·-·Returns·seconds·since·or·before·Unix·time·epoch,·which·is | 3249 | type·set·in·<code·class="inline">Opts·::·{time,·Type}</code>·as·follows:</p><ul><li><p><strong><code·class="inline">local</code></strong>·-·Returns·local·time.</p></li><li><p><strong><code·class="inline">universal</code></strong>·-·Returns·universal·time.</p></li><li><p><strong><code·class="inline">posix</code></strong>·-·Returns·seconds·since·or·before·Unix·time·epoch,·which·is |
| 3250 | 1970-01-01·00:00·UTC.</p></li></ul><p>Default·is·<code·class="inline">{time,·local}</code>.</p><p>If·the·option·<code·class="inline">raw</code>·is·set,·the·file·server·is·not·called·and·only·information | 3250 | 1970-01-01·00:00·UTC.</p></li></ul><p>Default·is·<code·class="inline">{time,·local}</code>.</p><p>If·the·option·<code·class="inline">raw</code>·is·set,·the·file·server·is·not·called·and·only·information |
| 3251 | about·local·files·is·returned.·Note·that·this·will·break·this·module's·atomicity | 3251 | about·local·files·is·returned.·Note·that·this·will·break·this·module's·atomicity |
| 3252 | guarantees·as·it·can·race·with·a·concurrent·call·to | 3252 | guarantees·as·it·can·race·with·a·concurrent·call·to |
| 3253 | <a·href="#write_file_info/2"><code·class="inline">write_file_info/1,2</code>·</a>.</p><p>This·option·has·no·effect·when·the·function·is·given·an·I/O·device·instead·of·a | 3253 | <a·href="#write_file_info/2"><code·class="inline">write_file_info/1,2</code>·</a>.</p><p>This·option·has·no·effect·when·the·function·is·given·an·I/O·device·instead·of·a |
| 3254 | file·name.·Use·<a·href="#open/2"><code·class="inline">open/2</code></a>·with·the·<code·class="inline">raw</code>·mode·to·obtain·a·file·descriptor·first.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>As·file·times·are·stored·in·POSIX·time·on·most·OS,·it·is·faster·to·query·file | 3254 | file·name.·Use·<a·href="#open/2"><code·class="inline">open/2</code></a>·with·the·<code·class="inline">raw</code>·mode·to·obtain·a·file·descriptor·first.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>As·file·times·are·stored·in·POSIX·time·on·most·OS,·it·is·faster·to·query·file |
| 3255 | information·with·option·<code·class="inline">posix</code>.</p></section><p>The·record·<code·class="inline">file_info</code>·contains·the·following·fields:</p><ul><li><p><strong><code·class="inline">size·=</code>·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:non_neg_integer/0"><code·class="inline">non_neg_integer/0</code></a></strong>·-·Size·of·file·in·bytes.</p></li><li><p><strong><code·class="inline">type·=·device·|·directory·|·other·|·regular</code></strong>·-·The·type·of·the·file.·Can | 3255 | information·with·option·<code·class="inline">posix</code>.</p></section><p>The·record·<code·class="inline">file_info</code>·contains·the·following·fields:</p><ul><li><p><strong><code·class="inline">size·=</code>·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:non_neg_integer/0"><code·class="inline">non_neg_integer/0</code></a></strong>·-·Size·of·file·in·bytes.</p></li><li><p><strong><code·class="inline">type·=·device·|·directory·|·other·|·regular</code></strong>·-·The·type·of·the·file.·Can |
| Offset 3897, 15 lines modified | Offset 3897, 15 lines modified | ||
| 3897 | ·····························Reason·::·<a·href="#t:posix/0">posix</a>()·|·badarg.</pre> | 3897 | ·····························Reason·::·<a·href="#t:posix/0">posix</a>()·|·badarg.</pre> |
| 3898 | ······</div> | 3898 | ······</div> |
| 3899 | <p>Changes·file·information.·Returns·<code·class="inline">ok</code>·if·successful,·otherwise | 3899 | <p>Changes·file·information.·Returns·<code·class="inline">ok</code>·if·successful,·otherwise |
| 3900 | <code·class="inline">{error,·Reason}</code>.</p><p><code·class="inline">FileInfo</code>·is·a·record·<code·class="inline">file_info</code>,·defined·in·the·Kernel | 3900 | <code·class="inline">{error,·Reason}</code>.</p><p><code·class="inline">FileInfo</code>·is·a·record·<code·class="inline">file_info</code>,·defined·in·the·Kernel |
| 3901 | include·file·<code·class="inline">file.hrl</code>.·Include·the·following·directive·in·the·module·from | 3901 | include·file·<code·class="inline">file.hrl</code>.·Include·the·following·directive·in·the·module·from |
| 3902 | which·the·function·is·called:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id=" | 3902 | which·the·function·is·called:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id="1200873998-1">(</span><span·class="s">"kernel/include/file.hrl"</span><span·class="p"·data-group-id="1200873998-1">)</span><span·class="p">.</span></code></pre><p>The·time·type·set·in·<code·class="inline">atime</code>,·<code·class="inline">mtime</code>,·and·<code·class="inline">ctime</code>·depends·on·the·time·type·set |
| 3903 | in·<code·class="inline">Opts·::·{time,·Type}</code>·as·follows:</p><ul><li><p><strong><code·class="inline">local</code></strong>·-·Interprets·the·time·set·as·local.</p></li><li><p><strong><code·class="inline">universal</code></strong>·-·Interprets·it·as·universal·time.</p></li><li><p><strong><code·class="inline">posix</code></strong>·-·Must·be·seconds·since·or·before·Unix·time·epoch,·which·is | 3903 | in·<code·class="inline">Opts·::·{time,·Type}</code>·as·follows:</p><ul><li><p><strong><code·class="inline">local</code></strong>·-·Interprets·the·time·set·as·local.</p></li><li><p><strong><code·class="inline">universal</code></strong>·-·Interprets·it·as·universal·time.</p></li><li><p><strong><code·class="inline">posix</code></strong>·-·Must·be·seconds·since·or·before·Unix·time·epoch,·which·is |
| 3904 | 1970-01-01·00:00·UTC.</p></li></ul><p>Default·is·<code·class="inline">{time,·local}</code>.</p><p>If·the·option·<code·class="inline">raw</code>·is·set,·the·file·server·is·not·called·and·only·information | 3904 | 1970-01-01·00:00·UTC.</p></li></ul><p>Default·is·<code·class="inline">{time,·local}</code>.</p><p>If·the·option·<code·class="inline">raw</code>·is·set,·the·file·server·is·not·called·and·only·information |
| 3905 | about·local·files·is·returned.</p><p>The·following·fields·are·used·from·the·record,·if·they·are·specified:</p><ul><li><p><strong><code·class="inline">atime·=</code>·<a·href="#t:date_time/0"><code·class="inline">date_time/0</code></a>·<code·class="inline">|</code>·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:non_neg_integer/0"><code·class="inline">non_neg_integer/0</code></a></strong>·-·The·last·time·the·file·was | 3905 | about·local·files·is·returned.</p><p>The·following·fields·are·used·from·the·record,·if·they·are·specified:</p><ul><li><p><strong><code·class="inline">atime·=</code>·<a·href="#t:date_time/0"><code·class="inline">date_time/0</code></a>·<code·class="inline">|</code>·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:non_neg_integer/0"><code·class="inline">non_neg_integer/0</code></a></strong>·-·The·last·time·the·file·was |
| 3906 | read.</p></li><li><p><strong><code·class="inline">mtime·=</code>·<a·href="#t:date_time/0"><code·class="inline">date_time/0</code></a>·<code·class="inline">|</code>·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:non_neg_integer/0"><code·class="inline">non_neg_integer/0</code></a></strong>·-·The·last·time·the·file·was | 3906 | read.</p></li><li><p><strong><code·class="inline">mtime·=</code>·<a·href="#t:date_time/0"><code·class="inline">date_time/0</code></a>·<code·class="inline">|</code>·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:non_neg_integer/0"><code·class="inline">non_neg_integer/0</code></a></strong>·-·The·last·time·the·file·was |
| 3907 | written.</p></li><li><p><strong><code·class="inline">ctime·=</code>·<a·href="#t:date_time/0"><code·class="inline">date_time/0</code></a>·<code·class="inline">|</code>·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:non_neg_integer/0"><code·class="inline">non_neg_integer/0</code></a></strong>·-·On·Unix,·any·value | 3907 | written.</p></li><li><p><strong><code·class="inline">ctime·=</code>·<a·href="#t:date_time/0"><code·class="inline">date_time/0</code></a>·<code·class="inline">|</code>·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:non_neg_integer/0"><code·class="inline">non_neg_integer/0</code></a></strong>·-·On·Unix,·any·value |
| 3908 | specified·for·this·field·is·ignored·(the·"ctime"·for·the·file·is·set·to·the | 3908 | specified·for·this·field·is·ignored·(the·"ctime"·for·the·file·is·set·to·the |
| 3909 | current·time).·On·Windows,·this·field·is·the·new·creation·time·to·set·for·the | 3909 | current·time).·On·Windows,·this·field·is·the·new·creation·time·to·set·for·the |
| Offset 3939, 15 lines modified | Offset 3939, 15 lines modified | ||
| 3939 | ······<p·class="built-using"> | 3939 | ······<p·class="built-using"> |
| 3940 | ········Built·using | 3940 | ········Built·using |
| 3941 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 3941 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 3942 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 3942 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 3943 | ······</p> | 3943 | ······</p> |
| 3944 | <p>Copyright·©·1996-202 | 3944 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 3945 | ····</footer> | 3945 | ····</footer> |
| 3946 | ··</div> | 3946 | ··</div> |
| 3947 | </main> | 3947 | </main> |
| 3948 | </div> | 3948 | </div> |
| 3949 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 3949 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 3950 | ··<script> | 3950 | ··<script> |
| 3951 | ··let·initialized·=·false; | 3951 | ··let·initialized·=·false; |
| Offset 126, 35 lines modified | Offset 126, 35 lines modified | ||
| 126 | ··</h1> | 126 | ··</h1> |
| 127 | ····<section·id="moduledoc"> | 127 | ····<section·id="moduledoc"> |
| 128 | <p>Interface·to·TCP/IP·sockets.</p><p>This·module·provides·functions·for·communicating·over·TCP/IP | 128 | <p>Interface·to·TCP/IP·sockets.</p><p>This·module·provides·functions·for·communicating·over·TCP/IP |
| 129 | protocol·sockets.</p><p>The·following·code·fragment·is·a·simple·example·of·a·client·connecting·to·a | 129 | protocol·sockets.</p><p>The·following·code·fragment·is·a·simple·example·of·a·client·connecting·to·a |
| 130 | server·at·port·5678,·transferring·a·binary,·and·closing·the·connection:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">client</span><span·class="p"·data-group-id=" | 130 | server·at·port·5678,·transferring·a·binary,·and·closing·the·connection:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">client</span><span·class="p"·data-group-id="5729497357-1">(</span><span·class="p"·data-group-id="5729497357-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 131 | ····</span><span·class="n">SomeHostInNet</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"localhost"</span><span·class="p">,</span><span·class="w">·</span><span·class="c1">%·to·make·it·runnable·on·one·machine</span><span·class="w"> | 131 | ····</span><span·class="n">SomeHostInNet</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"localhost"</span><span·class="p">,</span><span·class="w">·</span><span·class="c1">%·to·make·it·runnable·on·one·machine</span><span·class="w"> |
| 132 | ····</span><span·class="p"·data-group-id=" | 132 | ····</span><span·class="p"·data-group-id="5729497357-2">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Sock</span><span·class="p"·data-group-id="5729497357-2">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·cl[·...·truncated·by·diffoscope;·len:·119,·SHA:·8e687ffcf01c22a29bd10f9d2fcf5e84dc7d0478e31235fc6e9f35b5dd04cf6f·...·]-3">(</span><span·class="n">SomeHostInNet</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">5678</span><span·class="p">,</span><span·class="w"> |
| 133 | ·································</span><span·class="p"·data-group-id=" | 133 | ·································</span><span·class="p"·data-group-id="5729497357-4">[</span><span·class="ss">binary</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="5729497357-5">{</span><span·class="ss">packet</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">0</span>[·...·truncated·by·diffoscope;·len:·147,·SHA:·71c950876eae14c72b2d8d1676161addb075b46eb60e1a72b1f739ccfdcfc2bf·...·]-3">)</span><span·class="p">,</span><span·class="w"> |
| 134 | ····</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">gen_tcp</span><span·class="p">:</span><span·class="nf">send</span><span·class="p"·data-group-id=" | 134 | ····</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">gen_tcp</span><span·class="p">:</span><span·class="nf">send</span><span·class="p"·data-group-id="5729497357-6">(</span><span·class="n">Sock</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"Some·Data"</span><span·class="p"·data-group-id="5729497357-6">)</span><span·class="p">,</span><span·class="w"> |
| 135 | ····</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">gen_tcp</span><span·class="p">:</span><span·class="nf">close</span><span·class="p"·data-group-id=" | 135 | ····</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">gen_tcp</span><span·class="p">:</span><span·class="nf">close</span><span·class="p"·data-group-id="5729497357-7">(</span><span·class="n">Sock</span><span·class="p"·data-group-id="5729497357-7">)</span><span·class="p">.</span></code></pre><p>At·the·other·end,·a·server·is·listening·on·port·5678,·accepts·the·connection, |
| 136 | and·receives·the·binary:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">server</span><span·class="p"·data-group-id="7 | 136 | and·receives·the·binary:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">server</span><span·class="p"·data-group-id="7636659485-1">(</span><span·class="p"·data-group-id="7636659485-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 137 | ····</span><span·class="p"·data-group-id="7 | 137 | ····</span><span·class="p"·data-group-id="7636659485-2">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">LSock</span><span·class="p"·data-group-id="7636659485-2">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·cl[·...·truncated·by·diffoscope;·len:·534,·SHA:·f0c6ce9f390381c32cc50b5fcf1d34b598890dbf3c8f9fc065f7b45c50b50b05·...·]-5">}</span><span·class="p">,</span><span·class="w"> |
| 138 | ········································</span><span·class="p"·data-group-id="7 | 138 | ········································</span><span·class="p"·data-group-id="7636659485-6">{</span><span·class="ss">active</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">false</span><span·class="p"·data-group-id="7636659485-6">}</span><span·class="p"·data-group-id="7636659485-4">]</span><span·class="p"·data-g[·...·truncated·by·diffoscope;·len:·19,·SHA:·e1df6a1506c40de08fc20ee4303209fa7ffc0ca474cd41593f9fdbf3762f481b·...·]-3">)</span><span·class="p">,</span><span·class="w"> |
| 139 | ····</span><span·class="p"·data-group-id="7 | 139 | ····</span><span·class="p"·data-group-id="7636659485-7">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Sock</span><span·class="p"·data-group-id="7636659485-7">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·cla[·...·truncated·by·diffoscope;·len:·198,·SHA:·d275e1918af0c18330f7eef4693428325df50ddb886fc5c7a8b68983e9e50bc5·...·]-8">)</span><span·class="p">,</span><span·class="w"> |
| 140 | ····</span><span·class="p"·data-group-id="7 | 140 | ····</span><span·class="p"·data-group-id="7636659485-9">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Bin</span><span·class="p"·data-group-id="7636659485-9">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·clas[·...·truncated·by·diffoscope;·len:·299,·SHA:·db86c4c1a31fdba46d3c64fd913f43b132295f2b7121cbefdf5866b7f14d9aac·...·]-10">)</span><span·class="p">,</span><span·class="w"> |
| 141 | ····</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">gen_tcp</span><span·class="p">:</span><span·class="nf">close</span><span·class="p"·data-group-id="7 | 141 | ····</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">gen_tcp</span><span·class="p">:</span><span·class="nf">close</span><span·class="p"·data-group-id="7636659485-12">(</span><span·class="n">Sock</span><span·class="p"·data-group-id="7636659485-12">)</span><span·class="p">,</span><span·class="w"> |
| 142 | ····</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">gen_tcp</span><span·class="p">:</span><span·class="nf">close</span><span·class="p"·data-group-id="7 | 142 | ····</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">gen_tcp</span><span·class="p">:</span><span·class="nf">close</span><span·class="p"·data-group-id="7636659485-13">(</span><span·class="n">LSock</span><span·class="p"·data-group-id="7636659485-13">)</span><span·class="p">,</span><span·class="w"> |
| 143 | ····</span><span·class="n">Bin</span><span·class="p">.</span><span·class="w"> | 143 | ····</span><span·class="n">Bin</span><span·class="p">.</span><span·class="w"> |
| 144 | </span><span·class="nf">do_recv</span><span·class="p"·data-group-id="7 | 144 | </span><span·class="nf">do_recv</span><span·class="p"·data-group-id="7636659485-14">(</span><span·class="n">Sock</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Bs</span><span·class="p"·data-group-id="7636659485-14">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 145 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">gen_tcp</span><span·class="p">:</span><span·class="nf">recv</span><span·class="p"·data-group-id="7 | 145 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">gen_tcp</span><span·class="p">:</span><span·class="nf">recv</span><span·class="p"·data-group-id="7636659485-15">(</span><span·class="n">Sock</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">0</span><span·class="p"·data-group-id="7636659485-15">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 146 | ········</span><span·class="p"·data-group-id="7 | 146 | ········</span><span·class="p"·data-group-id="7636659485-16">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">B</span><span·class="p"·data-group-id="7636659485-16">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 147 | ············</span><span·class="nf">do_recv</span><span·class="p"·data-group-id="7 | 147 | ············</span><span·class="nf">do_recv</span><span·class="p"·data-group-id="7636659485-17">(</span><span·class="n">Sock</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="7636659485-18">[</span><span·class="n">Bs</span><span·class="p">,</span><span·class="w">·</span><span·class="n">B</span><span·cl[·...·truncated·by·diffoscope;·len:·87,·SHA:·daf9777830ceea83f4154c493311281d126379affe1467ae69d6f7d199ba6e9e·...·]-17">)</span><span·class="p">;</span><span·class="w"> |
| 148 | ········</span><span·class="p"·data-group-id="7 | 148 | ········</span><span·class="p"·data-group-id="7636659485-19">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">closed</span><span·class="p"·data-group-id="7636659485-19">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 149 | ············</span><span·class="p"·data-group-id="7 | 149 | ············</span><span·class="p"·data-group-id="7636659485-20">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">list_to_binary</span><span·class="p"·data-group-id="7636659485-21">(</span><span·class="n">Bs</span><span·class="p"·data-group-id="7636659485-2[·...·truncated·by·diffoscope;·len:·52,·SHA:·102bf23fe4ed6492aaf6b9e655e78237d16e2b1fd333ea45372ec0226c723e22·...·]-20">}</span><span·class="w"> |
| 150 | ····</span><span·class="k">end</span><span·class="p">.</span></code></pre><p>For·more·examples,·see·section·<a·href="#module-examples">Examples</a>.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>Functions·that·create·sockets·can·take·an·optional·option; | 150 | ····</span><span·class="k">end</span><span·class="p">.</span></code></pre><p>For·more·examples,·see·section·<a·href="#module-examples">Examples</a>.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>Functions·that·create·sockets·can·take·an·optional·option; |
| 151 | <code·class="inline">{inet_backend, Backend}</code>·that,·if·specified,·has·to·be·the·first·option.·This | 151 | <code·class="inline">{inet_backend, Backend}</code>·that,·if·specified,·has·to·be·the·first·option.·This |
| 152 | selects·the·implementation·backend·towards·the·platform's·socket·API.</p><p>This·is·a·<em>temporary</em>·option·that·will·be·ignored·in·a·future·release.</p><p>The·default·is·<code·class="inline">Backend = inet</code>·that·selects·the·traditional·<code·class="inline">inet_drv.c</code> | 152 | selects·the·implementation·backend·towards·the·platform's·socket·API.</p><p>This·is·a·<em>temporary</em>·option·that·will·be·ignored·in·a·future·release.</p><p>The·default·is·<code·class="inline">Backend = inet</code>·that·selects·the·traditional·<code·class="inline">inet_drv.c</code> |
| 153 | driver.·The·other·choice·is·<code·class="inline">Backend = socket</code>·that·selects·the·new·<a·href="socket.html"><code·class="inline">socket</code></a> | 153 | driver.·The·other·choice·is·<code·class="inline">Backend = socket</code>·that·selects·the·new·<a·href="socket.html"><code·class="inline">socket</code></a> |
| 154 | module·and·its·NIF·implementation.</p><p>The·system·default·can·be·changed·when·the·node·is·started·with·the | 154 | module·and·its·NIF·implementation.</p><p>The·system·default·can·be·changed·when·the·node·is·started·with·the |
| 155 | application·<code·class="inline">kernel</code>'s·configuration·variable·<code·class="inline">inet_backend</code>.</p><p>For·<code·class="inline">gen_tcp</code>·with·<code·class="inline">inet_backend·=·socket</code>·we·have·tried·to·be·as·"compatible" | 155 | application·<code·class="inline">kernel</code>'s·configuration·variable·<code·class="inline">inet_backend</code>.</p><p>For·<code·class="inline">gen_tcp</code>·with·<code·class="inline">inet_backend·=·socket</code>·we·have·tried·to·be·as·"compatible" |
| 156 | as·possible·which·has·sometimes·been·impossible.·Here·is·a·list·of·cases·when | 156 | as·possible·which·has·sometimes·been·impossible.·Here·is·a·list·of·cases·when |
| Offset 185, 91 lines modified | Offset 185, 91 lines modified | ||
| 185 | ··<span·class="text">Examples</span> | 185 | ··<span·class="text">Examples</span> |
| 186 | </h2> | 186 | </h2> |
| 187 | <p>The·following·example·illustrates·use·of·option·<code·class="inline">{active,once}</code>·and·multiple | 187 | <p>The·following·example·illustrates·use·of·option·<code·class="inline">{active,once}</code>·and·multiple |
| 188 | accepts·by·implementing·a·server·as·a·number·of·worker·processes·doing·accept·on | 188 | accepts·by·implementing·a·server·as·a·number·of·worker·processes·doing·accept·on |
| 189 | a·single·listening·socket.·Function·<code·class="inline">start/2</code>·takes·the·number·of·worker | 189 | a·single·listening·socket.·Function·<code·class="inline">start/2</code>·takes·the·number·of·worker |
| 190 | processes·and·the·port·number·on·which·to·listen·for·incoming·connections.·If | 190 | processes·and·the·port·number·on·which·to·listen·for·incoming·connections.·If |
| 191 | <code·class="inline">LPort</code>·is·specified·as·<code·class="inline">0</code>,·an·ephemeral·port·number·is·used,·which·is·why·the | 191 | <code·class="inline">LPort</code>·is·specified·as·<code·class="inline">0</code>,·an·ephemeral·port·number·is·used,·which·is·why·the |
| 192 | start·function·returns·the·actual·port·number·allocated:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">start</span><span·class="p"·data-group-id=" | 192 | start·function·returns·the·actual·port·number·allocated:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">start</span><span·class="p"·data-group-id="1104157893-1">(</span><span·class="n">Num</span><span·class="p">,</span><span·class="n">LPort</span><span·class="p"·data-group-id="1104157893-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 193 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">gen_tcp</span><span·class="p">:</span><span·class="nf">listen</span><span·class="p"·data-group-id=" | 193 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">gen_tcp</span><span·class="p">:</span><span·class="nf">listen</span><span·class="p"·data-group-id="1104157893-2">(</span><span·class="n">LPort</span><span·class="p">,</span><span·class="p"·data-group-id="1104157893-3">[</span><span·class="p"·data-group-id="1104157893-4">{</span><span·class="ss">active</span><span·class="p">,</span><span·class="w">·</spa[·...·truncated·by·diffoscope;·len:·387,·SHA:·eb52c8be7f59243b1be73e3b2496157849c796a74d8779f42ff8fb561e1bc487·...·]-2">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 194 | ········</span><span·class="p"·data-group-id=" | 194 | ········</span><span·class="p"·data-group-id="1104157893-6">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">ListenSock</span><span·class="p"·data-group-id="1104157893-6">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 195 | ············</span><span·class="nf">start_servers</span><span·class="p"·data-group-id=" | 195 | ············</span><span·class="nf">start_servers</span><span·class="p"·data-group-id="1104157893-7">(</span><span·class="n">Num</span><span·class="p">,</span><span·class="n">ListenSock</span><span·class="p"·data-group-id="1104157893-7">)</span><span·class="p">,</span><span·class="w"> |
| 196 | ············</span><span·class="p"·data-group-id=" | 196 | ············</span><span·class="p"·data-group-id="1104157893-8">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Port</span><span·class="p"·data-group-id="1104157893-8">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·cl[·...·truncated·by·diffoscope;·len:·199,·SHA:·ec5f31aa2a1ed88f97d92346145a22f037a223a633ed3394f60a5dc328ab80ad·...·]-9">)</span><span·class="p">,</span><span·class="w"> |
| 197 | ············</span><span·class="n">Port</span><span·class="p">;</span><span·class="w"> | 197 | ············</span><span·class="n">Port</span><span·class="p">;</span><span·class="w"> |
| 198 | ········</span><span·class="p"·data-group-id="5935705524-10">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="n">Reason</span><span·class="p"·data-group-id="5935705524-10">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | ||
| 199 | ········ | 198 | ········</span><span·class="p"·data-group-id="1104157893-10">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="n">Reason</span><span·class="p"·data-group-id="1104157893-10">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 199 | ············</span><span·class="p"·data-group-id="1104157893-11">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="n">Reason</span><span·class="p"·data-group-id="1104157893-11">}</span><span·class="w"> | ||
| 200 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> | 200 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> |
| 201 | </span><span·class="nf">start_servers</span><span·class="p"·data-group-id=" | 201 | </span><span·class="nf">start_servers</span><span·class="p"·data-group-id="1104157893-12">(</span><span·class="mi">0</span><span·class="p">,</span><span·class="p">_</span><span·class="p"·data-group-id="1104157893-12">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 202 | ····</span><span·class="ss">ok</span><span·class="p">;</span><span·class="w"> | 202 | ····</span><span·class="ss">ok</span><span·class="p">;</span><span·class="w"> |
| 203 | </span><span·class="nf">start_servers</span><span·class="p"·data-group-id=" | 203 | </span><span·class="nf">start_servers</span><span·class="p"·data-group-id="1104157893-13">(</span><span·class="n">Num</span><span·class="p">,</span><span·class="n">LS</span><span·class="p"·data-group-id="1104157893-13">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 204 | ····</span><span·class="nf">spawn</span><span·class="p"·data-group-id=" | 204 | ····</span><span·class="nf">spawn</span><span·class="p"·data-group-id="1104157893-14">(</span><span·class="o">?</span><span·class="n">MODULE</span><span·class="p">,</span><span·class="ss">server</span><span·class="p">,</span><span·class="p"·data-group-id="1104157893-15">[</span><span·class="n">LS</span><span·class="p"·data-gr[·...·truncated·by·diffoscope;·len:·72,·SHA:·2525a6271a78039dc995d0fc1e5523c1c940add7388603bd5f26092a6635a817·...·]-14">)</span><span·class="p">,</span><span·class="w"> |
| 205 | ····</span><span·class="nf">start_servers</span><span·class="p"·data-group-id=" | 205 | ····</span><span·class="nf">start_servers</span><span·class="p"·data-group-id="1104157893-16">(</span><span·class="n">Num</span><span·class="o">-</span><span·class="mi">1</span><span·class="p">,</span><span·class="n">LS</span><span·class="p"·data-group-id="1104157893-16">)</span><span·class="p">.</span><span·class="w"> |
| 206 | </span><span·class="nf">server</span><span·class="p"·data-group-id=" | 206 | </span><span·class="nf">server</span><span·class="p"·data-group-id="1104157893-17">(</span><span·class="n">LS</span><span·class="p"·data-group-id="1104157893-17">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 207 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">gen_tcp</span><span·class="p">:</span><span·class="nf">accept</span><span·class="p"·data-group-id=" | 207 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">gen_tcp</span><span·class="p">:</span><span·class="nf">accept</span><span·class="p"·data-group-id="1104157893-18">(</span><span·class="n">LS</span><span·class="p"·data-group-id="1104157893-18">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 208 | ········</span><span·class="p"·data-group-id=" | 208 | ········</span><span·class="p"·data-group-id="1104157893-19">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="n">S</span><span·class="p"·data-group-id="1104157893-19">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 209 | ············</span><span·class="nf">loop</span><span·class="p"·data-group-id="5935705524-20">(</span><span·class="n">S</span><span·class="p"·data-group-id="5935705524-20">)</span><span·class="p">,</span><span·class="w"> | ||
| 210 | ············</span><span·class="nf"> | 209 | ············</span><span·class="nf">loop</span><span·class="p"·data-group-id="1104157893-20">(</span><span·class="n">S</span><span·class="p"·data-group-id="1104157893-20">)</span><span·class="p">,</span><span·class="w"> |
| 210 | ············</span><span·class="nf">server</span><span·class="p"·data-group-id="1104157893-21">(</span><span·class="n">LS</span><span·class="p"·data-group-id="1104157893-21">)</span><span·class="p">;</span><span·class="w"> | ||
| 211 | ········</span><span·class="n">Other</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 211 | ········</span><span·class="n">Other</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 212 | ············</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 212 | ············</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="1104157893-22">(</span><span·class="s">"accept·returned·</span><span·class="si">~w</span><span·class="s">·-·goodbye!</span><span·class="si">~n</span><span·class="s">"</span><span·class="p">,</span><span·class="p"·data-group-id="1104157893-23">[</[·...·truncated·by·diffoscope;·len:·128,·SHA:·b542543362980a78b461c8a9af7ac581d9f2a4ea115e9ad69fc9d623ead4f377·...·]-22">)</span><span·class="p">,</span><span·class="w"> |
| 213 | ············</span><span·class="ss">ok</span><span·class="w"> | 213 | ············</span><span·class="ss">ok</span><span·class="w"> |
| 214 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> | 214 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> |
| 215 | </span><span·class="nf">loop</span><span·class="p"·data-group-id=" | 215 | </span><span·class="nf">loop</span><span·class="p"·data-group-id="1104157893-24">(</span><span·class="n">S</span><span·class="p"·data-group-id="1104157893-24">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 216 | ····</span><span·class="nc">inet</span><span·class="p">:</span><span·class="nf">setopts</span><span·class="p"·data-group-id=" | 216 | ····</span><span·class="nc">inet</span><span·class="p">:</span><span·class="nf">setopts</span><span·class="p"·data-group-id="1104157893-25">(</span><span·class="n">S</span><span·class="p">,</span><span·class="p"·data-group-id="1104157893-26">[</span><span·class="p"·data-group-id="1104157893-27">{</span><span·class="ss">active</span><span·class="p">,</span><span·class="ss">once</[·...·truncated·by·diffoscope;·len:·154,·SHA:·23b7980766703a998129f84f5dd7716f76343e4276ee580950ec4909e21a8b5f·...·]-25">)</span><span·class="p">,</span><span·class="w"> |
| 217 | ····</span><span·class="k">receive</span><span·class="w"> | 217 | ····</span><span·class="k">receive</span><span·class="w"> |
| 218 | ········</span><span·class="p"·data-group-id=" | 218 | ········</span><span·class="p"·data-group-id="1104157893-28">{</span><span·class="ss">tcp</span><span·class="p">,</span><span·class="n">S</span><span·class="p">,</span><span·class="n">Data</span><span·class="p"·data-group-id="1104157893-28">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 219 | ············</span><span·class="n">Answer</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">process</span><span·class="p"·data-group-id=" | 219 | ············</span><span·class="n">Answer</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">process</span><span·class="p"·data-group-id="1104157893-29">(</span><span·class="n">Data</span><span·class="p"·data-group-id="1104157893-29">)</span><span·class="p">,</span><span·class="w">·</span><span·class="c1">%·Not·implemented·in·this·example</span><span·class="w"> |
| 220 | ············</span><span·class="nc">gen_tcp</span><span·class="p">:</span><span·class="nf">send</span><span·class="p"·data-group-id=" | 220 | ············</span><span·class="nc">gen_tcp</span><span·class="p">:</span><span·class="nf">send</span><span·class="p"·data-group-id="1104157893-30">(</span><span·class="n">S</span><span·class="p">,</span><span·class="n">Answer</span><span·class="p"·data-group-id="1104157893-30">)</span><span·class="p">,</span><span·class="w"> |
| 221 | ············</span><span·class="nf">loop</span><span·class="p"·data-group-id=" | 221 | ············</span><span·class="nf">loop</span><span·class="p"·data-group-id="1104157893-31">(</span><span·class="n">S</span><span·class="p"·data-group-id="1104157893-31">)</span><span·class="p">;</span><span·class="w"> |
| 222 | ········</span><span·class="p"·data-group-id=" | 222 | ········</span><span·class="p"·data-group-id="1104157893-32">{</span><span·class="ss">tcp_closed</span><span·class="p">,</span><span·class="n">S</span><span·class="p"·data-group-id="1104157893-32">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 223 | ············</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 223 | ············</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="1104157893-33">(</span><span·class="s">"Socket·</span><span·class="si">~w</span><span·class="s">·closed·[</span><span·class="si">~w</span><span·class="s">]</span><span·class="si">~n</span><span·class="s">"</span><span·class="p">,</span><span·clas[·...·truncated·by·diffoscope;·len:·323,·SHA:·5b42f62cdbbcea69fc0e4d3681876b01f81a3dc4ec5a0e14eaaed8b90b86aaa3·...·]-33">)</span><span·class="p">,</span><span·class="w"> |
| 224 | ············</span><span·class="ss">ok</span><span·class="w"> | 224 | ············</span><span·class="ss">ok</span><span·class="w"> |
| 225 | ····</span><span·class="k">end</span><span·class="p">.</span></code></pre><p>Example·of·a·simple·client:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">client</span><span·class="p"·data-group-id=" | 225 | ····</span><span·class="k">end</span><span·class="p">.</span></code></pre><p>Example·of·a·simple·client:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">client</span><span·class="p"·data-group-id="7008598055-1">(</span><span·class="n">PortNo</span><span·class="p">,</span><span·class="n">Message</span><span·class="p"·data-group-id="7008598055-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 226 | ····</span><span·class="p"·data-group-id=" | 226 | ····</span><span·class="p"·data-group-id="7008598055-2">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="n">Sock</span><span·class="p"·data-group-id="7008598055-2">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">gen_tcp</span><[·...·truncated·by·diffoscope;·len:·458,·SHA:·eae0f2d34be1ff4c3ad9b36e553940892c2e7c1b61277d18f9bf2187c08348d0·...·]-5">}</span><span·class="p">,</span><span·class="w"> |
| 227 | ····················································</span><span·class="p"·data-group-id=" | 227 | ····················································</span><span·class="p"·data-group-id="7008598055-6">{</span><span·class="ss">packet</span><span·class="p">,</span><span·class="mi">2</span><span·class="p"·data-group-id="7008598055-6">}</span><span·class="p"·data-group-id="7008598055-4">]</span><span·class="p"·data-group-id="7008598055-3">)</span><span·class="p">,</span><span·class="w"> |
| 228 | ····</span><span·class="nc">gen_tcp</span><span·class="p">:</span><span·class="nf">send</span><span·class="p"·data-group-id=" | 228 | ····</span><span·class="nc">gen_tcp</span><span·class="p">:</span><span·class="nf">send</span><span·class="p"·data-group-id="7008598055-7">(</span><span·class="n">Sock</span><span·class="p">,</span><span·class="n">Message</span><span·class="p"·data-group-id="7008598055-7">)</span><span·class="p">,</span><span·class="w"> |
| 229 | ····</span><span·class="n">A</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">gen_tcp</span><span·class="p">:</span><span·class="nf">recv</span><span·class="p"·data-group-id=" | 229 | ····</span><span·class="n">A</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">gen_tcp</span><span·class="p">:</span><span·class="nf">recv</span><span·class="p"·data-group-id="7008598055-8">(</span><span·class="n">Sock</span><span·class="p">,</span><span·class="mi">0</span><span·class="p"·data-group-id="7008598055-8">)</span><span·class="p">,</span><span·class="w"> |
| 230 | ····</span><span·class="nc">gen_tcp</span><span·class="p">:</span><span·class="nf">close</span><span·class="p"·data-group-id=" | 230 | ····</span><span·class="nc">gen_tcp</span><span·class="p">:</span><span·class="nf">close</span><span·class="p"·data-group-id="7008598055-9">(</span><span·class="n">Sock</span><span·class="p"·data-group-id="7008598055-9">)</span><span·class="p">,</span><span·class="w"> |
| 231 | ····</span><span·class="n">A</span><span·class="p">.</span></code></pre><p>The·<code·class="inline">send</code>·call·does·not·accept·a·time-out·option·because·time-outs·on·send·is | 231 | ····</span><span·class="n">A</span><span·class="p">.</span></code></pre><p>The·<code·class="inline">send</code>·call·does·not·accept·a·time-out·option·because·time-outs·on·send·is |
| 232 | handled·through·socket·option·<code·class="inline">send_timeout</code>.·The·behavior·of·a·send·operation | 232 | handled·through·socket·option·<code·class="inline">send_timeout</code>.·The·behavior·of·a·send·operation |
| 233 | with·no·receiver·is·mainly·defined·by·the·underlying·TCP·stack·and·the·network | 233 | with·no·receiver·is·mainly·defined·by·the·underlying·TCP·stack·and·the·network |
| 234 | infrastructure.·To·write·code·that·handles·a·hanging·receiver·that·can | 234 | infrastructure.·To·write·code·that·handles·a·hanging·receiver·that·can |
| 235 | eventually·cause·the·sender·to·hang·on·a·<code·class="inline">send</code>·do·like·the·following.</p><p>Consider·a·process·that·receives·data·from·a·client·process·to·be·forwarded·to·a | 235 | eventually·cause·the·sender·to·hang·on·a·<code·class="inline">send</code>·do·like·the·following.</p><p>Consider·a·process·that·receives·data·from·a·client·process·to·be·forwarded·to·a |
| 236 | server·on·the·network.·The·process·is·connected·to·the·server·through·TCP/IP·and | 236 | server·on·the·network.·The·process·is·connected·to·the·server·through·TCP/IP·and |
| 237 | does·not·get·any·acknowledge·for·each·message·it·sends,·but·has·to·rely·on·the | 237 | does·not·get·any·acknowledge·for·each·message·it·sends,·but·has·to·rely·on·the |
| 238 | send·time-out·option·to·detect·that·the·other·end·is·unresponsive.·Option | 238 | send·time-out·option·to·detect·that·the·other·end·is·unresponsive.·Option |
| 239 | <code·class="inline">send_timeout</code>·can·be·used·when·connecting:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> | 239 | <code·class="inline">send_timeout</code>·can·be·used·when·connecting:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> |
| 240 | </span><span·class="p"·data-group-id=" | 240 | </span><span·class="p"·data-group-id="7302288989-1">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="n">Sock</span><span·class="p"·data-group-id="7302288989-1">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">gen_tcp</span><[·...·truncated·by·diffoscope;·len:·95,·SHA:·5c3b6e8a1a152a323b1e2e3cc27c7630ad8210bbfbf260c53e156d6d755202d6·...·]-2">(</span><span·class="n">HostAddress</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Port</span><span·class="p">,</span><span·class="w"> |
| 241 | ····························</span><span·class="p"·data-group-id=" | 241 | ····························</span><span·class="p"·data-group-id="7302288989-3">[</span><span·class="p"·data-group-id="7302288989-4">{</span><span·class="ss">active</span><span·class="p">,</span><span·class="ss">false</span><span·class="p"·data-group-id="7302288989-4">}</span><span·class="p">,</span><span·class="w"> |
| 242 | ·····························</span><span·class="p"·data-group-id=" | 242 | ·····························</span><span·class="p"·data-group-id="7302288989-5">{</span><span·class="ss">send_timeout</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">5000</span><span·class="p"·data-group-id="7302288989-5">}</span><span·class="p">,</span><span·class="w"> |
| 243 | ·····························</span><span·class="p"·data-group-id=" | 243 | ·····························</span><span·class="p"·data-group-id="7302288989-6">{</span><span·class="ss">packet</span><span·class="p">,</span><span·class="mi">2</span><span·class="p"·data-group-id="7302288989-6">}</span><span·class="p"·data-group-id="7302288989-3">]</span><span·class="p"·data-group-id="7302288989-2">)</span><span·class="p">,</span><span·class="w"> |
| 244 | ················</span><span·class="nf">loop</span><span·class="p"·data-group-id=" | 244 | ················</span><span·class="nf">loop</span><span·class="p"·data-group-id="7302288989-7">(</span><span·class="n">Sock</span><span·class="p"·data-group-id="7302288989-7">)</span><span·class="p">,</span><span·class="w">·</span><span·class="c1">%·See·below</span><span·class="w"> |
| 245 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span></code></pre><p>In·the·loop·where·requests·are·handled,·send·time-outs·can·now·be·detected:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">loop</span><span·class="p"·data-group-id=" | 245 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span></code></pre><p>In·the·loop·where·requests·are·handled,·send·time-outs·can·now·be·detected:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">loop</span><span·class="p"·data-group-id="3852271672-1">(</span><span·class="n">Sock</span><span·class="p"·data-group-id="3852271672-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 246 | ····</span><span·class="k">receive</span><span·class="w"> | 246 | ····</span><span·class="k">receive</span><span·class="w"> |
| 247 | ········</span><span·class="p"·data-group-id=" | 247 | ········</span><span·class="p"·data-group-id="3852271672-2">{</span><span·class="n">Client</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">send_data</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Binary</span><span·class="p"·data-group-id="3852271672-2">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 248 | ············</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">gen_tcp</span><span·class="p">:</span><span·class="nf">send</span><span·class="p"·data-group-id=" | 248 | ············</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">gen_tcp</span><span·class="p">:</span><span·class="nf">send</span><span·class="p"·data-group-id="3852271672-3">(</span><span·class="n">Sock</span><span·class="p">,</span><span·class="p"·data-group-id="3852271672-4">[</span><span·class="n">Binary</span><span·class="p"·data-group-id="3852271672-4">]</span><span·class="p"·data-group-id="3852271672-3">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 249 | ················</span><span·class="p"·data-group-id=" | 249 | ················</span><span·class="p"·data-group-id="3852271672-5">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">timeout</span><span·class="p"·data-group-id="3852271672-5">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 250 | ····················</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 250 | ····················</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="3852271672-6">(</span><span·class="s">"Send·timeout,·closing!</span><span·class="si">~n</span><span·class="s">"</span><span·class="p">,</span><span·class="w"> |
| 251 | ······························</span><span·class="p"·data-group-id=" | 251 | ······························</span><span·class="p"·data-group-id="3852271672-7">[</span><span·class="p"·data-group-id="3852271672-7">]</span><span·class="p"·data-group-id="3852271672-6">)</span><span·class="p">,</span><span·class="w"> |
| 252 | ····················</span><span·class="nf">handle_send_timeout</span><span·class="p"·data-group-id="2058625771-8">(</span><span·class="p"·data-group-id="2058625771-8">)</span><span·class="p">,</span><span·class="w">·</span><span·class="c1">%·Not·implemented·here</span><span·class="w"> | ||
| 253 | ····················</span><span·class="n"> | 252 | ····················</span><span·class="nf">handle_send_timeout</span><span·class="p"·data-group-id="3852271672-8">(</span><span·class="p"·data-group-id="3852271672-8">)</span><span·class="p">,</span><span·class="w">·</span><span·class="c1">%·Not·implemented·here</span><span·class="w"> |
| 253 | ····················</span><span·class="n">Client</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id="3852271672-9">{</span><span·class="nf">self</span><span·class="p"·data-group-id="3852271672-10">(</span><span·class="p"·data-group-id="3852271672-10">)</span><span·class="p">,</span><span·class="p"·data-group-id="3852271672-11">{</span><span·class="ss">error_sending</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">timeout</span><span·class="p"·data-group-id="3852271672-11">}</span><span·class="p"·data-group-id="3852271672-9">}</span><span·class="p">,</span><span·class="w"> | ||
| 254 | ····················</span><span·class="c1">%%·Usually,·it's·a·good·idea·to·give·up·in·case·of·a</span><span·class="w"> | 254 | ····················</span><span·class="c1">%%·Usually,·it's·a·good·idea·to·give·up·in·case·of·a</span><span·class="w"> |
| 255 | ····················</span><span·class="c1">%%·send·timeout,·as·you·never·know·how·much·actually</span><span·class="w"> | 255 | ····················</span><span·class="c1">%%·send·timeout,·as·you·never·know·how·much·actually</span><span·class="w"> |
| 256 | ····················</span><span·class="c1">%%·reached·the·server,·maybe·only·a·packet·header?!</span><span·class="w"> | 256 | ····················</span><span·class="c1">%%·reached·the·server,·maybe·only·a·packet·header?!</span><span·class="w"> |
| 257 | ····················</span><span·class="nc">gen_tcp</span><span·class="p">:</span><span·class="nf">close</span><span·class="p"·data-group-id=" | 257 | ····················</span><span·class="nc">gen_tcp</span><span·class="p">:</span><span·class="nf">close</span><span·class="p"·data-group-id="3852271672-12">(</span><span·class="n">Sock</span><span·class="p"·data-group-id="3852271672-12">)</span><span·class="p">;</span><span·class="w"> |
| 258 | ················</span><span·class="p"·data-group-id=" | 258 | ················</span><span·class="p"·data-group-id="3852271672-13">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="w">·</span><span·class="n">OtherSendError</span><span·class="p"·data-group-id="3852271672-13">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 259 | ····················</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 259 | ····················</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="3852271672-14">(</span><span·class="s">"Some·other·error·on·socket·(</span><span·class="si">~p</span><span·class="s">),·closing"</span><span·class="p">,</span><span·class="w"> |
| 260 | ······························</span><span·class="p"·data-group-id=" | 260 | ······························</span><span·class="p"·data-group-id="3852271672-15">[</span><span·class="n">OtherSendError</span><span·class="p"·data-group-id="3852271672-15">]</span><span·class="p"·data-group-id="3852271672-14">)</span><span·class="p">,</span><span·class="w"> |
| 261 | ····················</span><span·class="n">Client</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id=" | 261 | ····················</span><span·class="n">Client</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id="3852271672-16">{</span><span·class="nf">self</span><span·class="p"·data-group-id="3852271672-17">(</span><span·class="p"·data-group-id="3852271672-17">)</span><span·class="p">,</span><span·class="p"·data-group-id="3852271672-18">{</span><span·class="ss">er[·...·truncated·by·diffoscope;·len:·198,·SHA:·ea1c2eb649e9f23f2f21583aca2e8ee724eba07d6236a3a9a746cc91195af972·...·]-16">}</span><span·class="p">,</span><span·class="w"> |
| 262 | ····················</span><span·class="nc">gen_tcp</span><span·class="p">:</span><span·class="nf">close</span><span·class="p"·data-group-id=" | 262 | ····················</span><span·class="nc">gen_tcp</span><span·class="p">:</span><span·class="nf">close</span><span·class="p"·data-group-id="3852271672-19">(</span><span·class="n">Sock</span><span·class="p"·data-group-id="3852271672-19">)</span><span·class="p">;</span><span·class="w"> |
| 263 | ················</span><span·class="ss">ok</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 263 | ················</span><span·class="ss">ok</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 264 | ····················</span><span·class="n">Client</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id=" | 264 | ····················</span><span·class="n">Client</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id="3852271672-20">{</span><span·class="nf">self</span><span·class="p"·data-group-id="3852271672-21">(</span><span·class="p"·data-group-id="3852271672-21">)</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">data_sent</span><span·class="p"·[·...·truncated·by·diffoscope;·len:·25,·SHA:·d5c003f52290976afe301253e5f86b9d8c047eb0d68ec7afc10534d7212210d4·...·]-20">}</span><span·class="p">,</span><span·class="w"> |
| 265 | ····················</span><span·class="nf">loop</span><span·class="p"·data-group-id=" | 265 | ····················</span><span·class="nf">loop</span><span·class="p"·data-group-id="3852271672-22">(</span><span·class="n">Sock</span><span·class="p"·data-group-id="3852271672-22">)</span><span·class="w"> |
| 266 | ············</span><span·class="k">end</span><span·class="w"> | 266 | ············</span><span·class="k">end</span><span·class="w"> |
| 267 | ····</span><span·class="k">end</span><span·class="p">.</span></code></pre><p>Usually·it·suffices·to·detect·time-outs·on·receive,·as·most·protocols·include | 267 | ····</span><span·class="k">end</span><span·class="p">.</span></code></pre><p>Usually·it·suffices·to·detect·time-outs·on·receive,·as·most·protocols·include |
| 268 | some·sort·of·acknowledgment·from·the·server,·but·if·the·protocol·is·strictly·one | 268 | some·sort·of·acknowledgment·from·the·server,·but·if·the·protocol·is·strictly·one |
| 269 | way,·option·<code·class="inline">send_timeout</code>·comes·in·handy.</p> | 269 | way,·option·<code·class="inline">send_timeout</code>·comes·in·handy.</p> |
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| 924 | time-to-live·(TTL)·for·outgoing·multicast·datagrams·to·control·the·scope·of | 924 | time-to-live·(TTL)·for·outgoing·multicast·datagrams·to·control·the·scope·of |
| 925 | the·multicasts.</p><p>Datagrams·with·a·TTL·of·1·are·not·forwarded·beyond·the·local·network. | 925 | the·multicasts.</p><p>Datagrams·with·a·TTL·of·1·are·not·forwarded·beyond·the·local·network. |
| 926 | Defaults·to·<code·class="inline">1</code>.</p></li><li><p><strong><code·class="inline">{add_membership, {MultiAddress, InterfaceAddress}}</code></strong>·- | 926 | Defaults·to·<code·class="inline">1</code>.</p></li><li><p><strong><code·class="inline">{add_membership, {MultiAddress, InterfaceAddress}}</code></strong>·- |
| 927 | Joins·a·multicast·group.</p></li><li><p><strong><code·class="inline">{drop_membership, {MultiAddress, InterfaceAddress}}</code></strong>·- | 927 | Joins·a·multicast·group.</p></li><li><p><strong><code·class="inline">{drop_membership, {MultiAddress, InterfaceAddress}}</code></strong>·- |
| 928 | Leaves·a·multicast·group.</p></li><li><p><strong><a·href="#t:option/0"><code·class="inline">option/0</code></a></strong>·-·See·<a·href="inet.html#setopts/2"><code·class="inline">inet:setopts/2</code></a>.</p></li></ul><p>UDP·packets·are·sent·with·this·socket·using·<a·href="#send/3"><code·class="inline">send(Socket, ...)</code></a>. | 928 | Leaves·a·multicast·group.</p></li><li><p><strong><a·href="#t:option/0"><code·class="inline">option/0</code></a></strong>·-·See·<a·href="inet.html#setopts/2"><code·class="inline">inet:setopts/2</code></a>.</p></li></ul><p>UDP·packets·are·sent·with·this·socket·using·<a·href="#send/3"><code·class="inline">send(Socket, ...)</code></a>. |
| 929 | When·UDP·packets·arrive·to·the·<code·class="inline">Socket</code>'s·UDP·port,·and·the·socket·is·in | 929 | When·UDP·packets·arrive·to·the·<code·class="inline">Socket</code>'s·UDP·port,·and·the·socket·is·in |
| 930 | an·<em>active·mode</em>,·the·packets·are·delivered·as·messages·to·the | 930 | an·<em>active·mode</em>,·the·packets·are·delivered·as·messages·to·the |
| 931 | controlling·process·(socket·owner):</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 931 | controlling·process·(socket·owner):</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="7875291414-1">{</span><span·class="ss">udp</span><span·class="p">,</span><span·class="err"> </span><span·class="n">Socket</span><span·class="p">,</span><span·class="err"> </span><span·class="n">PeerIP</span><span·class="p">,</span><span·class="err"> </span[·...·truncated·by·diffoscope;·len:·152,·SHA:·5aa6fda55e4f3ec418aa6ed27f3811d9a1620c0773d14f46e7a1d5fb45e31479·...·]-1">}</span><span·class="w">·</span><span·class="c1">%·Without·ancillary·data</span><span·class="w"> |
| 932 | </span><span·class="p"·data-group-id=" | 932 | </span><span·class="p"·data-group-id="7875291414-2">{</span><span·class="ss">udp</span><span·class="p">,</span><span·class="err"> </span><span·class="n">Socket</span><span·class="p">,</span><span·class="err"> </span><span·class="n">PeerIP</span><span·class="p">,</span><span·class="err"> </span[·...·truncated·by·diffoscope;·len:·232,·SHA:·e3b547fa9f31be83c8d977895fec09558d0ca02e3b0c8b44cb165b6f6adde786·...·]-2">}</span><span·class="w">·</span><span·class="c1">%·With·ancillary·data</span></code></pre><p><code·class="inline">PeerIP</code>·and·<code·class="inline">PeerPort</code>·are·the·address·from·which·<code·class="inline">Packet</code>·was·sent. |
| 933 | <code·class="inline">Packet</code>·is·a·list·of·bytes·(<code·class="inline">[</code><a·href="../../../../erts-16.0/doc/html/erlang.html#t:byte/0"><code·class="inline">byte/0</code></a><code·class="inline">]</code>·if·option·<code·class="inline">list</code> | 933 | <code·class="inline">Packet</code>·is·a·list·of·bytes·(<code·class="inline">[</code><a·href="../../../../erts-16.0/doc/html/erlang.html#t:byte/0"><code·class="inline">byte/0</code></a><code·class="inline">]</code>·if·option·<code·class="inline">list</code> |
| 934 | is·active·and·a·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:binary/0"><code·class="inline">binary/0</code></a>·if·option·<code·class="inline">binary</code>is·active | 934 | is·active·and·a·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:binary/0"><code·class="inline">binary/0</code></a>·if·option·<code·class="inline">binary</code>is·active |
| 935 | (they·are·mutually·exclusive).</p><p>The·message·contains·an·<code·class="inline">AncData</code>·field·only·if·any·of·the·socket | 935 | (they·are·mutually·exclusive).</p><p>The·message·contains·an·<code·class="inline">AncData</code>·field·only·if·any·of·the·socket |
| 936 | <a·href="#t:option/0">options</a>·<a·href="inet.html#option-recvtos"><code·class="inline">recvtos</code></a>, | 936 | <a·href="#t:option/0">options</a>·<a·href="inet.html#option-recvtos"><code·class="inline">recvtos</code></a>, |
| 937 | <a·href="inet.html#option-recvtclass"><code·class="inline">recvtclass</code></a>·or | 937 | <a·href="inet.html#option-recvtclass"><code·class="inline">recvtclass</code></a>·or |
| 938 | <a·href="inet.html#option-recvttl"><code·class="inline">recvttl</code></a>·are·active.</p><p>When·a·socket·in·<code·class="inline">{active, N}</code>·mode·(see·<a·href="inet.html#setopts/2"><code·class="inline">inet:setopts/2</code></a>·for·details), | 938 | <a·href="inet.html#option-recvttl"><code·class="inline">recvttl</code></a>·are·active.</p><p>When·a·socket·in·<code·class="inline">{active, N}</code>·mode·(see·<a·href="inet.html#setopts/2"><code·class="inline">inet:setopts/2</code></a>·for·details), |
| 939 | transitions·to·passive·(<code·class="inline">{active, false}</code>)·mode·(<code·class="inline">N</code>·counts·down·to·<code·class="inline">0</code>), | 939 | transitions·to·passive·(<code·class="inline">{active, false}</code>)·mode·(<code·class="inline">N</code>·counts·down·to·<code·class="inline">0</code>), |
| 940 | the·controlling·process·is·notified·by·a·message·on·this·form:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 940 | the·controlling·process·is·notified·by·a·message·on·this·form:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="8854183820-1">{</span><span·class="ss">udp_passive</span><span·class="p">,</span><span·class="err"> </span><span·class="n">Socket</span><span·class="p"·data-group-id="8854183820-1">}</span></code></pre><p>If·the·OS·protocol·stack·reports·an·error·for·the·socket,·the·following |
| 941 | message·is·sent·to·the·controlling·process:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="3 | 941 | message·is·sent·to·the·controlling·process:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="3590089997-1">{</span><span·class="ss">udp_error</span><span·class="p">,</span><span·class="err"> </span><span·class="n">Socket</span><span·class="p">,</span><span·class="err"> </span><span·class="n">Reason</span><span·class="p"·data-group-id="3590089997-1">}</span></code></pre><p><code·class="inline">Reason</code>·is·mostly·a·<a·href="inet.html#posix-error-codes">POSIX·Error·Code</a>.</p><p>If·the·socket·is·in·<em>passive·mode</em>·(not·in·an·<em>active·mode</em>),·received·data |
| 942 | can·be·retrieved·with·the<code·class="inline">recv/2,3</code>](<a·href="#recv/2"><code·class="inline">recv/2</code></a>)·calls.·Note·that·incoming | 942 | can·be·retrieved·with·the<code·class="inline">recv/2,3</code>](<a·href="#recv/2"><code·class="inline">recv/2</code></a>)·calls.·Note·that·incoming |
| 943 | UDP·packets·that·are·longer·than·the·receive·buffer·option·specifies | 943 | UDP·packets·that·are·longer·than·the·receive·buffer·option·specifies |
| 944 | can·be·truncated·without·warning.</p><p>The·default·value·for·the·receive·buffer·option·is·<code·class="inline">{recbuf, 9216}</code>.</p> | 944 | can·be·truncated·without·warning.</p><p>The·default·value·for·the·receive·buffer·option·is·<code·class="inline">{recbuf, 9216}</code>.</p> |
| 945 | ··</section> | 945 | ··</section> |
| 946 | </section> | 946 | </section> |
| 947 | <section·class="detail"·id="recv/2"> | 947 | <section·class="detail"·id="recv/2"> |
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| 1225 | ······<p·class="built-using"> | 1225 | ······<p·class="built-using"> |
| 1226 | ········Built·using | 1226 | ········Built·using |
| 1227 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1227 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1228 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1228 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1229 | ······</p> | 1229 | ······</p> |
| 1230 | <p>Copyright·©·1996-202 | 1230 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1231 | ····</footer> | 1231 | ····</footer> |
| 1232 | ··</div> | 1232 | ··</div> |
| 1233 | </main> | 1233 | </main> |
| 1234 | </div> | 1234 | </div> |
| 1235 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1235 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1236 | ··<script> | 1236 | ··<script> |
| 1237 | ··let·initialized·=·false; | 1237 | ··let·initialized·=·false; |
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| 1244 | ······<p·class="built-using"> | 1244 | ······<p·class="built-using"> |
| 1245 | ········Built·using | 1245 | ········Built·using |
| 1246 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1246 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1247 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1247 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1248 | ······</p> | 1248 | ······</p> |
| 1249 | <p>Copyright·©·1996-202 | 1249 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1250 | ····</footer> | 1250 | ····</footer> |
| 1251 | ··</div> | 1251 | ··</div> |
| 1252 | </main> | 1252 | </main> |
| 1253 | </div> | 1253 | </div> |
| 1254 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1254 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1255 | ··<script> | 1255 | ··<script> |
| 1256 | ··let·initialized·=·false; | 1256 | ··let·initialized·=·false; |
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| 128 | ····<section·id="moduledoc"> | 128 | ····<section·id="moduledoc"> |
| 129 | <p>Grouping·nodes·to·global·name·registration·groups.</p><p>This·module·makes·it·possible·to·partition·the·nodes·of·a·system·into·<em>global | 129 | <p>Grouping·nodes·to·global·name·registration·groups.</p><p>This·module·makes·it·possible·to·partition·the·nodes·of·a·system·into·<em>global |
| 130 | groups</em>.·Each·global·group·has·its·own·global·namespace,·see·<a·href="global.html"><code·class="inline">global</code></a>.</p><p>The·main·advantage·of·dividing·systems·into·global·groups·is·that·the·background | 130 | groups</em>.·Each·global·group·has·its·own·global·namespace,·see·<a·href="global.html"><code·class="inline">global</code></a>.</p><p>The·main·advantage·of·dividing·systems·into·global·groups·is·that·the·background |
| 131 | load·decreases·while·the·number·of·nodes·to·be·updated·is·reduced·when | 131 | load·decreases·while·the·number·of·nodes·to·be·updated·is·reduced·when |
| 132 | manipulating·globally·registered·names.</p><p>The·Kernel·configuration·parameter·<a·href="kernel_app.html#global_groups"><code·class="inline">global_groups</code></a> | 132 | manipulating·globally·registered·names.</p><p>The·Kernel·configuration·parameter·<a·href="kernel_app.html#global_groups"><code·class="inline">global_groups</code></a> |
| 133 | defines·the·global·groups:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 133 | defines·the·global·groups:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="3657295731-1">{</span><span·class="ss">global_groups</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3657295731-2">[</span><span·class="n">GroupTuple</span><span·class="w">·</span><span·class="p">:</span><span·class="p"[·...·truncated·by·diffoscope;·len:·268,·SHA:·15b875c6c035efa0313d8923e7b60bb5a7d25090631d777c13b61fb85d62797a·...·]-1">}</span></code></pre><p>For·the·processes·and·nodes·to·run·smoothly·using·the·global·group |
| 134 | functionality,·the·following·criteria·must·be·met:</p><ul><li>An·instance·of·the·global·group·server,·<code·class="inline">global_group</code>,·must·be·running·on | 134 | functionality,·the·following·criteria·must·be·met:</p><ul><li>An·instance·of·the·global·group·server,·<code·class="inline">global_group</code>,·must·be·running·on |
| 135 | each·node.·The·processes·are·automatically·started·and·synchronized·when·a | 135 | each·node.·The·processes·are·automatically·started·and·synchronized·when·a |
| 136 | node·is·started.</li><li>All·involved·nodes·must·agree·on·the·global·group·definition,·otherwise·the | 136 | node·is·started.</li><li>All·involved·nodes·must·agree·on·the·global·group·definition,·otherwise·the |
| 137 | behavior·of·the·system·is·undefined.</li><li><em>All</em>·nodes·in·the·system·must·belong·to·exactly·one·global·group.</li></ul><p>In·the·following·descriptions,·a·<em>group·node</em>·is·a·node·belonging·to·the·same | 137 | behavior·of·the·system·is·undefined.</li><li><em>All</em>·nodes·in·the·system·must·belong·to·exactly·one·global·group.</li></ul><p>In·the·following·descriptions,·a·<em>group·node</em>·is·a·node·belonging·to·the·same |
| 138 | global·group·as·the·local·node.</p><h2·id="module-notes"·class="section-heading"> | 138 | global·group·as·the·local·node.</p><h2·id="module-notes"·class="section-heading"> |
| 139 | ··<a·href="#module-notes"·class="hover-link"> | 139 | ··<a·href="#module-notes"·class="hover-link"> |
| 140 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 140 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
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| 901 | ······<p·class="built-using"> | 901 | ······<p·class="built-using"> |
| 902 | ········Built·using | 902 | ········Built·using |
| 903 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 903 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 904 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 904 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 905 | ······</p> | 905 | ······</p> |
| 906 | <p>Copyright·©·1996-202 | 906 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 907 | ····</footer> | 907 | ····</footer> |
| 908 | ··</div> | 908 | ··</div> |
| 909 | </main> | 909 | </main> |
| 910 | </div> | 910 | </div> |
| 911 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 911 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 912 | ··<script> | 912 | ··<script> |
| 913 | ··let·initialized·=·false; | 913 | ··let·initialized·=·false; |
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| 589 | ······<p·class="built-using"> | 589 | ······<p·class="built-using"> |
| 590 | ········Built·using | 590 | ········Built·using |
| 591 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 591 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 592 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 592 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 593 | ······</p> | 593 | ······</p> |
| 594 | <p>Copyright·©·1996-202 | 594 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 595 | ····</footer> | 595 | ····</footer> |
| 596 | ··</div> | 596 | ··</div> |
| 597 | </main> | 597 | </main> |
| 598 | </div> | 598 | </div> |
| 599 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 599 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 600 | ··<script> | 600 | ··<script> |
| 601 | ··let·initialized·=·false; | 601 | ··let·initialized·=·false; |
| Offset 151, 27 lines modified | Offset 151, 27 lines modified | ||
| 151 | inet_default_listen_options·'[{delay_send,true}]'</code></pre><p><strong>Please·note</strong>·that·the·default·option·<code·class="inline">{active,·true}</code>·cannot·be·changed, | 151 | inet_default_listen_options·'[{delay_send,true}]'</code></pre><p><strong>Please·note</strong>·that·the·default·option·<code·class="inline">{active,·true}</code>·cannot·be·changed, |
| 152 | for·internal·implementation·reasons.</p><p>Addresses·as·inputs·to·functions·can·be·either·a·string·or·a·tuple. | 152 | for·internal·implementation·reasons.</p><p>Addresses·as·inputs·to·functions·can·be·either·a·string·or·a·tuple. |
| 153 | For·example,·the·IP·address·150.236.20.73·can·be·passed·to | 153 | For·example,·the·IP·address·150.236.20.73·can·be·passed·to |
| 154 | <a·href="#gethostbyaddr/1"><code·class="inline">gethostbyaddr/1</code></a>,·either·as·a·string·<code·class="inline">"150.236.20.73"</code> | 154 | <a·href="#gethostbyaddr/1"><code·class="inline">gethostbyaddr/1</code></a>,·either·as·a·string·<code·class="inline">"150.236.20.73"</code> |
| 155 | or·as·a·tuple·<code·class="inline">{150, 236, 20, 73}</code>.</p><p><em>IPv4·address·examples:</em></p><pre><code·class="text">Address··········ip_address() | 155 | or·as·a·tuple·<code·class="inline">{150, 236, 20, 73}</code>.</p><p><em>IPv4·address·examples:</em></p><pre><code·class="text">Address··········ip_address() |
| 156 | -------··········------------ | 156 | -------··········------------ |
| 157 | 127.0.0.1········{127,0,0,1} | 157 | 127.0.0.1········{127,0,0,1} |
| 158 | 192.168.42.2·····{192,168,42,2}</code></pre><p><em>IPv6·address·examples:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Address</span><span·class="w">··········</span><span·class="nf">ip_address</span><span·class="p"·data-group-id=" | 158 | 192.168.42.2·····{192,168,42,2}</code></pre><p><em>IPv6·address·examples:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Address</span><span·class="w">··········</span><span·class="nf">ip_address</span><span·class="p"·data-group-id="4600815532-1">(</span><span·class="p"·data-group-id="4600815532-1">)</span><span·class="w"> |
| 159 | </span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">-</span><span·class="w">··········</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="w"> | 159 | </span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">-</span><span·class="w">··········</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="o">--</span><span·class="w"> |
| 160 | </span><span·class="p">:</span><span·class="p">:</span><span·class="mi">1</span><span·class="w">·············</span><span·class="p"·data-group-id=" | 160 | </span><span·class="p">:</span><span·class="p">:</span><span·class="mi">1</span><span·class="w">·············</span><span·class="p"·data-group-id="4600815532-2">{</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="[·...·truncated·by·diffoscope;·len:·175,·SHA:·a5fbbc71d33ba0e42f681a23c5d7e262cd9a26c4c4156fbab5b10c01cbeff5c1·...·]-2">}</span><span·class="w"> |
| 161 | </span><span·class="p">:</span><span·class="p">:</span><span·class="mf">192.168</span><span·class="p">.</span><span·class="mf">42.2</span><span·class="w">··</span><span·class="p"·data-group-id=" | 161 | </span><span·class="p">:</span><span·class="p">:</span><span·class="mf">192.168</span><span·class="p">.</span><span·class="mf">42.2</span><span·class="w">··</span><span·class="p"·data-group-id="4600815532-3">{</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="[·...·truncated·by·diffoscope;·len:·792,·SHA:·9ffbd104a9ec9038102c561228b505f1ea4c8815e3c1fa61dcea0256ce468f55·...·]-3">}</span><span·class="w"> |
| 162 | </span><span·class="p">:</span><span·class="p">:</span><span·class="n">FFFF</span><span·class="p">:</span><span·class="mf">192.168</span><span·class="p">.</span><span·class="mf">42.2</span><span·class="w"> | 162 | </span><span·class="p">:</span><span·class="p">:</span><span·class="n">FFFF</span><span·class="p">:</span><span·class="mf">192.168</span><span·class="p">.</span><span·class="mf">42.2</span><span·class="w"> |
| 163 | ················</span><span·class="p"·data-group-id=" | 163 | ················</span><span·class="p"·data-group-id="4600815532-6">{</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="[·...·truncated·by·diffoscope;·len:·798,·SHA:·4609183fb54ae716354e0aa9e93f85856ef33e664048eab9eb7a2255fd970bdd·...·]-6">}</span><span·class="w"> |
| 164 | </span><span·class="mi">3</span><span·class="nc">ffe</span><span·class="p">:</span><span·class="nc">b80</span><span·class="p">:</span><span·class="mi">1</span><span·class="nc">f8d</span><span·class="p">:</span><span·class="mi">2</span><span·class="p">:</span><span·class="mi">204</span><span·class="p">:</span><span·class="nc">acff</span><span·class="p">:</span><span·class="nc">fe17</span><span·class="p">:</span><span·class="ss">bf38</span><span·class="w"> | 164 | </span><span·class="mi">3</span><span·class="nc">ffe</span><span·class="p">:</span><span·class="nc">b80</span><span·class="p">:</span><span·class="mi">1</span><span·class="nc">f8d</span><span·class="p">:</span><span·class="mi">2</span><span·class="p">:</span><span·class="mi">204</span><span·class="p">:</span><span·class="nc">acff</span><span·class="p">:</span><span·class="nc">fe17</span><span·class="p">:</span><span·class="ss">bf38</span><span·class="w"> |
| 165 | ················</span><span·class="p"·data-group-id=" | 165 | ················</span><span·class="p"·data-group-id="4600815532-9">{</span><span·class="mi">16#3ffe</span><span·class="p">,</span><span·class="mi">16#b80</span><span·class="p">,</span><span·class="mi">16#1f8d</span><span·class="p">,</span><span·class="mi">16#2</span><span·class="p">,</span><span·class="mi">1[·...·truncated·by·diffoscope;·len:·218,·SHA:·c2467cc22a5d96b1cd2aee948b04c13f5dc3a8c4e6d4ac32d4e0b4be172b381c·...·]-9">}</span><span·class="w"> |
| 166 | </span><span·class="nc">fe80</span><span·class="p">:</span><span·class="p">:</span><span·class="mi">204</span><span·class="p">:</span><span·class="nc">acff</span><span·class="p">:</span><span·class="nc">fe17</span><span·class="p">:</span><span·class="ss">bf38</span><span·class="w"> | 166 | </span><span·class="nc">fe80</span><span·class="p">:</span><span·class="p">:</span><span·class="mi">204</span><span·class="p">:</span><span·class="nc">acff</span><span·class="p">:</span><span·class="nc">fe17</span><span·class="p">:</span><span·class="ss">bf38</span><span·class="w"> |
| 167 | ················</span><span·class="p"·data-group-id=" | 167 | ················</span><span·class="p"·data-group-id="4600815532-10">{</span><span·class="mi">16#fe80</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">16#204</span><[·...·truncated·by·diffoscope;·len:·657,·SHA:·c500acb7d709fea1418dbd1427236f58aac843e162163fead3f2696c7906b9ba·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 168 | </span><span·class="p"·data-group-id=" | 168 | </span><span·class="p"·data-group-id="4018525185-2">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="p"·data-group-id="4018525185-3">{</span><span·class="mi">192</span><span·class="p">,</span><span·class="mi">168</span><span·class="p">,</span><span·class="mi">42</span><sp[·...·truncated·by·diffoscope;·len:·140,·SHA:·4939d1df1554c5c65c921272ee9573037f4b54ca22ed2d05bcca1f1a88e72927·...·]-2">}</span><span·class="gp·unselectable"> |
| 169 | 2>·</span><span·class="nc">inet</span><span·class="p">:</span><span·class="nf">parse_address</span><span·class="p"·data-group-id=" | 169 | 2>·</span><span·class="nc">inet</span><span·class="p">:</span><span·class="nf">parse_address</span><span·class="p"·data-group-id="4018525185-4">(</span><span·class="s">"::FFFF:192.168.42.2"</span><span·class="p"·data-group-id="4018525185-4">)</span><span·class="p">.</span><span·class="w"> |
| 170 | </span><span·class="p"·data-group-id=" | 170 | </span><span·class="p"·data-group-id="4018525185-5">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="p"·data-group-id="4018525185-6">{</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·cl[·...·truncated·by·diffoscope;·len:·343,·SHA:·05b2f8dd8523f0ba77ff0d43195952afc986b52c5ba98a3bd9660cbe004d097a·...·]-5">}</span></code></pre><h2·id="module-posix-error-codes"·class="section-heading"> |
| 171 | ··<a·href="#module-posix-error-codes"·class="hover-link"> | 171 | ··<a·href="#module-posix-error-codes"·class="hover-link"> |
| 172 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 172 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 173 | ··</a> | 173 | ··</a> |
| 174 | ··<span·class="text"><a·href=""·id="posix-error-codes"></a>·POSIX·Error·Codes</span> | 174 | ··<span·class="text"><a·href=""·id="posix-error-codes"></a>·POSIX·Error·Codes</span> |
| 175 | </h2> | 175 | </h2> |
| 176 | <ul><li><code·class="inline">e2big</code>·-·Too·long·argument·list</li><li><code·class="inline">eacces</code>·-·Permission·denied</li><li><code·class="inline">eaddrinuse</code>·-·Address·already·in·use</li><li><code·class="inline">eaddrnotavail</code>·-·Cannot·assign·requested·address</li><li><code·class="inline">eadv</code>·-·Advertise·error</li><li><code·class="inline">eafnosupport</code>·-·Address·family·not·supported·by·protocol·family</li><li><code·class="inline">eagain</code>·-·Resource·temporarily·unavailable</li><li><code·class="inline">ealign</code>·-·EALIGN</li><li><code·class="inline">ealready</code>·-·Operation·already·in·progress</li><li><code·class="inline">ebade</code>·-·Bad·exchange·descriptor</li><li><code·class="inline">ebadf</code>·-·Bad·file·number</li><li><code·class="inline">ebadfd</code>·-·File·descriptor·in·bad·state</li><li><code·class="inline">ebadmsg</code>·-·Not·a·data·message</li><li><code·class="inline">ebadr</code>·-·Bad·request·descriptor</li><li><code·class="inline">ebadrpc</code>·-·Bad·RPC·structure</li><li><code·class="inline">ebadrqc</code>·-·Bad·request·code</li><li><code·class="inline">ebadslt</code>·-·Invalid·slot</li><li><code·class="inline">ebfont</code>·-·Bad·font·file·format</li><li><code·class="inline">ebusy</code>·-·File·busy</li><li><code·class="inline">echild</code>·-·No·children</li><li><code·class="inline">echrng</code>·-·Channel·number·out·of·range</li><li><code·class="inline">ecomm</code>·-·Communication·error·on·send</li><li><code·class="inline">econnaborted</code>·-·Software·caused·connection·abort</li><li><code·class="inline">econnrefused</code>·-·Connection·refused</li><li><code·class="inline">econnreset</code>·-·Connection·reset·by·peer</li><li><code·class="inline">edeadlk</code>·-·Resource·deadlock·avoided</li><li><code·class="inline">edeadlock</code>·-·Resource·deadlock·avoided</li><li><code·class="inline">edestaddrreq</code>·-·Destination·address·required</li><li><code·class="inline">edirty</code>·-·Mounting·a·dirty·fs·without·force</li><li><code·class="inline">edom</code>·-·Math·argument·out·of·range</li><li><code·class="inline">edotdot</code>·-·Cross·mount·point</li><li><code·class="inline">edquot</code>·-·Disk·quota·exceeded</li><li><code·class="inline">eduppkg</code>·-·Duplicate·package·name</li><li><code·class="inline">eexist</code>·-·File·already·exists</li><li><code·class="inline">efault</code>·-·Bad·address·in·system·call·argument</li><li><code·class="inline">efbig</code>·-·File·too·large</li><li><code·class="inline">ehostdown</code>·-·Host·is·down</li><li><code·class="inline">ehostunreach</code>·-·Host·is·unreachable</li><li><code·class="inline">eidrm</code>·-·Identifier·removed</li><li><code·class="inline">einit</code>·-·Initialization·error</li><li><code·class="inline">einprogress</code>·-·Operation·now·in·progress</li><li><code·class="inline">eintr</code>·-·Interrupted·system·call</li><li><code·class="inline">einval</code>·-·Invalid·argument</li><li><code·class="inline">eio</code>·-·I/O·error</li><li><code·class="inline">eisconn</code>·-·Socket·is·already·connected</li><li><code·class="inline">eisdir</code>·-·Illegal·operation·on·a·directory</li><li><code·class="inline">eisnam</code>·-·Is·a·named·file</li><li><code·class="inline">el2hlt</code>·-·Level·2·halted</li><li><code·class="inline">el2nsync</code>·-·Level·2·not·synchronized</li><li><code·class="inline">el3hlt</code>·-·Level·3·halted</li><li><code·class="inline">el3rst</code>·-·Level·3·reset</li><li><code·class="inline">elbin</code>·-·ELBIN</li><li><code·class="inline">elibacc</code>·-·Cannot·access·a·needed·shared·library</li><li><code·class="inline">elibbad</code>·-·Accessing·a·corrupted·shared·library</li><li><code·class="inline">elibexec</code>·-·Cannot·exec·a·shared·library·directly</li><li><code·class="inline">elibmax</code>·-·Attempting·to·link·in·more·shared·libraries·than·system·limit</li><li><code·class="inline">elibscn</code>·-·<code·class="inline">.lib</code>·section·in·<code·class="inline">a.out</code>·corrupted</li><li><code·class="inline">elnrng</code>·-·Link·number·out·of·range</li><li><code·class="inline">eloop</code>·-·Too·many·levels·of·symbolic·links</li><li><code·class="inline">emfile</code>·-·Too·many·open·files</li><li><code·class="inline">emlink</code>·-·Too·many·links</li><li><code·class="inline">emsgsize</code>·-·Message·too·long</li><li><code·class="inline">emultihop</code>·-·Multihop·attempted</li><li><code·class="inline">enametoolong</code>·-·Filename·too·long</li><li><code·class="inline">enavail</code>·-·Unavailable</li><li><code·class="inline">enet</code>·-·ENET</li><li><code·class="inline">enetdown</code>·-·Network·is·down</li><li><code·class="inline">enetreset</code>·-·Network·dropped·connection·on·reset</li><li><code·class="inline">enetunreach</code>·-·Network·is·unreachable</li><li><code·class="inline">enfile</code>·-·File·table·overflow</li><li><code·class="inline">enoano</code>·-·Anode·table·overflow</li><li><code·class="inline">enobufs</code>·-·No·buffer·space·available</li><li><code·class="inline">enocsi</code>·-·No·CSI·structure·available</li><li><code·class="inline">enodata</code>·-·No·data·available</li><li><code·class="inline">enodev</code>·-·No·such·device</li><li><code·class="inline">enoent</code>·-·No·such·file·or·directory</li><li><code·class="inline">enoexec</code>·-·Exec·format·error</li><li><code·class="inline">enolck</code>·-·No·locks·available</li><li><code·class="inline">enolink</code>·-·Link·has·been·severed</li><li><code·class="inline">enomem</code>·-·Not·enough·memory</li><li><code·class="inline">enomsg</code>·-·No·message·of·desired·type</li><li><code·class="inline">enonet</code>·-·Machine·is·not·on·the·network</li><li><code·class="inline">enopkg</code>·-·Package·not·installed</li><li><code·class="inline">enoprotoopt</code>·-·Bad·protocol·option</li><li><code·class="inline">enospc</code>·-·No·space·left·on·device</li><li><code·class="inline">enosr</code>·-·Out·of·stream·resources·or·not·a·stream·device</li><li><code·class="inline">enosym</code>·-·Unresolved·symbol·name</li><li><code·class="inline">enosys</code>·-·Function·not·implemented</li><li><code·class="inline">enotblk</code>·-·Block·device·required</li><li><code·class="inline">enotconn</code>·-·Socket·is·not·connected</li><li><code·class="inline">enotdir</code>·-·Not·a·directory</li><li><code·class="inline">enotempty</code>·-·Directory·not·empty</li><li><code·class="inline">enotnam</code>·-·Not·a·named·file</li><li><code·class="inline">enotsock</code>·-·Socket·operation·on·non-socket</li><li><code·class="inline">enotsup</code>·-·Operation·not·supported</li><li><code·class="inline">enotty</code>·-·Inappropriate·device·for·<code·class="inline">ioctl</code></li><li><code·class="inline">enotuniq</code>·-·Name·not·unique·on·network</li><li><code·class="inline">enxio</code>·-·No·such·device·or·address</li><li><code·class="inline">eopnotsupp</code>·-·Operation·not·supported·on·socket</li><li><code·class="inline">eperm</code>·-·Not·owner</li><li><code·class="inline">epfnosupport</code>·-·Protocol·family·not·supported</li><li><code·class="inline">epipe</code>·-·Broken·pipe</li><li><code·class="inline">eproclim</code>·-·Too·many·processes</li><li><code·class="inline">eprocunavail</code>·-·Bad·procedure·for·program</li><li><code·class="inline">eprogmismatch</code>·-·Wrong·program·version</li><li><code·class="inline">eprogunavail</code>·-·RPC·program·unavailable</li><li><code·class="inline">eproto</code>·-·Protocol·error</li><li><code·class="inline">eprotonosupport</code>·-·Protocol·not·supported</li><li><code·class="inline">eprototype</code>·-·Wrong·protocol·type·for·socket</li><li><code·class="inline">erange</code>·-·Math·result·unrepresentable</li><li><code·class="inline">erefused</code>·-·EREFUSED</li><li><code·class="inline">eremchg</code>·-·Remote·address·changed</li><li><code·class="inline">eremdev</code>·-·Remote·device</li><li><code·class="inline">eremote</code>·-·Pathname·hit·remote·filesystem</li><li><code·class="inline">eremoteio</code>·-·Remote·I/O·error</li><li><code·class="inline">eremoterelease</code>·-·EREMOTERELEASE</li><li><code·class="inline">erofs</code>·-·Read-only·filesystem</li><li><code·class="inline">erpcmismatch</code>·-·Wrong·RPC·version</li><li><code·class="inline">erremote</code>·-·Object·is·remote</li><li><code·class="inline">eshutdown</code>·-·Cannot·send·after·socket·shutdown</li><li><code·class="inline">esocktnosupport</code>·-·Socket·type·not·supported</li><li><code·class="inline">espipe</code>·-·Invalid·seek</li><li><code·class="inline">esrch</code>·-·No·such·process</li><li><code·class="inline">esrmnt</code>·-·Srmount·error</li><li><code·class="inline">estale</code>·-·Stale·remote·file·handle</li><li><code·class="inline">esuccess</code>·-·Error·0</li><li><code·class="inline">etime</code>·-·Timer·expired</li><li><code·class="inline">etimedout</code>·-·Connection·timed·out</li><li><code·class="inline">etoomanyrefs</code>·-·Too·many·references</li><li><code·class="inline">etxtbsy</code>·-·Text·file·or·pseudo-device·busy</li><li><code·class="inline">euclean</code>·-·Structure·needs·cleaning</li><li><code·class="inline">eunatch</code>·-·Protocol·driver·not·attached</li><li><code·class="inline">eusers</code>·-·Too·many·users</li><li><code·class="inline">eversion</code>·-·Version·mismatch</li><li><code·class="inline">ewouldblock</code>·-·Operation·would·block</li><li><code·class="inline">exdev</code>·-·Cross-device·link</li><li><code·class="inline">exfull</code>·-·Message·tables·full</li><li><code·class="inline">nxdomain</code>·-·Hostname·or·domain·name·cannot·be·found</li></ul> | 176 | <ul><li><code·class="inline">e2big</code>·-·Too·long·argument·list</li><li><code·class="inline">eacces</code>·-·Permission·denied</li><li><code·class="inline">eaddrinuse</code>·-·Address·already·in·use</li><li><code·class="inline">eaddrnotavail</code>·-·Cannot·assign·requested·address</li><li><code·class="inline">eadv</code>·-·Advertise·error</li><li><code·class="inline">eafnosupport</code>·-·Address·family·not·supported·by·protocol·family</li><li><code·class="inline">eagain</code>·-·Resource·temporarily·unavailable</li><li><code·class="inline">ealign</code>·-·EALIGN</li><li><code·class="inline">ealready</code>·-·Operation·already·in·progress</li><li><code·class="inline">ebade</code>·-·Bad·exchange·descriptor</li><li><code·class="inline">ebadf</code>·-·Bad·file·number</li><li><code·class="inline">ebadfd</code>·-·File·descriptor·in·bad·state</li><li><code·class="inline">ebadmsg</code>·-·Not·a·data·message</li><li><code·class="inline">ebadr</code>·-·Bad·request·descriptor</li><li><code·class="inline">ebadrpc</code>·-·Bad·RPC·structure</li><li><code·class="inline">ebadrqc</code>·-·Bad·request·code</li><li><code·class="inline">ebadslt</code>·-·Invalid·slot</li><li><code·class="inline">ebfont</code>·-·Bad·font·file·format</li><li><code·class="inline">ebusy</code>·-·File·busy</li><li><code·class="inline">echild</code>·-·No·children</li><li><code·class="inline">echrng</code>·-·Channel·number·out·of·range</li><li><code·class="inline">ecomm</code>·-·Communication·error·on·send</li><li><code·class="inline">econnaborted</code>·-·Software·caused·connection·abort</li><li><code·class="inline">econnrefused</code>·-·Connection·refused</li><li><code·class="inline">econnreset</code>·-·Connection·reset·by·peer</li><li><code·class="inline">edeadlk</code>·-·Resource·deadlock·avoided</li><li><code·class="inline">edeadlock</code>·-·Resource·deadlock·avoided</li><li><code·class="inline">edestaddrreq</code>·-·Destination·address·required</li><li><code·class="inline">edirty</code>·-·Mounting·a·dirty·fs·without·force</li><li><code·class="inline">edom</code>·-·Math·argument·out·of·range</li><li><code·class="inline">edotdot</code>·-·Cross·mount·point</li><li><code·class="inline">edquot</code>·-·Disk·quota·exceeded</li><li><code·class="inline">eduppkg</code>·-·Duplicate·package·name</li><li><code·class="inline">eexist</code>·-·File·already·exists</li><li><code·class="inline">efault</code>·-·Bad·address·in·system·call·argument</li><li><code·class="inline">efbig</code>·-·File·too·large</li><li><code·class="inline">ehostdown</code>·-·Host·is·down</li><li><code·class="inline">ehostunreach</code>·-·Host·is·unreachable</li><li><code·class="inline">eidrm</code>·-·Identifier·removed</li><li><code·class="inline">einit</code>·-·Initialization·error</li><li><code·class="inline">einprogress</code>·-·Operation·now·in·progress</li><li><code·class="inline">eintr</code>·-·Interrupted·system·call</li><li><code·class="inline">einval</code>·-·Invalid·argument</li><li><code·class="inline">eio</code>·-·I/O·error</li><li><code·class="inline">eisconn</code>·-·Socket·is·already·connected</li><li><code·class="inline">eisdir</code>·-·Illegal·operation·on·a·directory</li><li><code·class="inline">eisnam</code>·-·Is·a·named·file</li><li><code·class="inline">el2hlt</code>·-·Level·2·halted</li><li><code·class="inline">el2nsync</code>·-·Level·2·not·synchronized</li><li><code·class="inline">el3hlt</code>·-·Level·3·halted</li><li><code·class="inline">el3rst</code>·-·Level·3·reset</li><li><code·class="inline">elbin</code>·-·ELBIN</li><li><code·class="inline">elibacc</code>·-·Cannot·access·a·needed·shared·library</li><li><code·class="inline">elibbad</code>·-·Accessing·a·corrupted·shared·library</li><li><code·class="inline">elibexec</code>·-·Cannot·exec·a·shared·library·directly</li><li><code·class="inline">elibmax</code>·-·Attempting·to·link·in·more·shared·libraries·than·system·limit</li><li><code·class="inline">elibscn</code>·-·<code·class="inline">.lib</code>·section·in·<code·class="inline">a.out</code>·corrupted</li><li><code·class="inline">elnrng</code>·-·Link·number·out·of·range</li><li><code·class="inline">eloop</code>·-·Too·many·levels·of·symbolic·links</li><li><code·class="inline">emfile</code>·-·Too·many·open·files</li><li><code·class="inline">emlink</code>·-·Too·many·links</li><li><code·class="inline">emsgsize</code>·-·Message·too·long</li><li><code·class="inline">emultihop</code>·-·Multihop·attempted</li><li><code·class="inline">enametoolong</code>·-·Filename·too·long</li><li><code·class="inline">enavail</code>·-·Unavailable</li><li><code·class="inline">enet</code>·-·ENET</li><li><code·class="inline">enetdown</code>·-·Network·is·down</li><li><code·class="inline">enetreset</code>·-·Network·dropped·connection·on·reset</li><li><code·class="inline">enetunreach</code>·-·Network·is·unreachable</li><li><code·class="inline">enfile</code>·-·File·table·overflow</li><li><code·class="inline">enoano</code>·-·Anode·table·overflow</li><li><code·class="inline">enobufs</code>·-·No·buffer·space·available</li><li><code·class="inline">enocsi</code>·-·No·CSI·structure·available</li><li><code·class="inline">enodata</code>·-·No·data·available</li><li><code·class="inline">enodev</code>·-·No·such·device</li><li><code·class="inline">enoent</code>·-·No·such·file·or·directory</li><li><code·class="inline">enoexec</code>·-·Exec·format·error</li><li><code·class="inline">enolck</code>·-·No·locks·available</li><li><code·class="inline">enolink</code>·-·Link·has·been·severed</li><li><code·class="inline">enomem</code>·-·Not·enough·memory</li><li><code·class="inline">enomsg</code>·-·No·message·of·desired·type</li><li><code·class="inline">enonet</code>·-·Machine·is·not·on·the·network</li><li><code·class="inline">enopkg</code>·-·Package·not·installed</li><li><code·class="inline">enoprotoopt</code>·-·Bad·protocol·option</li><li><code·class="inline">enospc</code>·-·No·space·left·on·device</li><li><code·class="inline">enosr</code>·-·Out·of·stream·resources·or·not·a·stream·device</li><li><code·class="inline">enosym</code>·-·Unresolved·symbol·name</li><li><code·class="inline">enosys</code>·-·Function·not·implemented</li><li><code·class="inline">enotblk</code>·-·Block·device·required</li><li><code·class="inline">enotconn</code>·-·Socket·is·not·connected</li><li><code·class="inline">enotdir</code>·-·Not·a·directory</li><li><code·class="inline">enotempty</code>·-·Directory·not·empty</li><li><code·class="inline">enotnam</code>·-·Not·a·named·file</li><li><code·class="inline">enotsock</code>·-·Socket·operation·on·non-socket</li><li><code·class="inline">enotsup</code>·-·Operation·not·supported</li><li><code·class="inline">enotty</code>·-·Inappropriate·device·for·<code·class="inline">ioctl</code></li><li><code·class="inline">enotuniq</code>·-·Name·not·unique·on·network</li><li><code·class="inline">enxio</code>·-·No·such·device·or·address</li><li><code·class="inline">eopnotsupp</code>·-·Operation·not·supported·on·socket</li><li><code·class="inline">eperm</code>·-·Not·owner</li><li><code·class="inline">epfnosupport</code>·-·Protocol·family·not·supported</li><li><code·class="inline">epipe</code>·-·Broken·pipe</li><li><code·class="inline">eproclim</code>·-·Too·many·processes</li><li><code·class="inline">eprocunavail</code>·-·Bad·procedure·for·program</li><li><code·class="inline">eprogmismatch</code>·-·Wrong·program·version</li><li><code·class="inline">eprogunavail</code>·-·RPC·program·unavailable</li><li><code·class="inline">eproto</code>·-·Protocol·error</li><li><code·class="inline">eprotonosupport</code>·-·Protocol·not·supported</li><li><code·class="inline">eprototype</code>·-·Wrong·protocol·type·for·socket</li><li><code·class="inline">erange</code>·-·Math·result·unrepresentable</li><li><code·class="inline">erefused</code>·-·EREFUSED</li><li><code·class="inline">eremchg</code>·-·Remote·address·changed</li><li><code·class="inline">eremdev</code>·-·Remote·device</li><li><code·class="inline">eremote</code>·-·Pathname·hit·remote·filesystem</li><li><code·class="inline">eremoteio</code>·-·Remote·I/O·error</li><li><code·class="inline">eremoterelease</code>·-·EREMOTERELEASE</li><li><code·class="inline">erofs</code>·-·Read-only·filesystem</li><li><code·class="inline">erpcmismatch</code>·-·Wrong·RPC·version</li><li><code·class="inline">erremote</code>·-·Object·is·remote</li><li><code·class="inline">eshutdown</code>·-·Cannot·send·after·socket·shutdown</li><li><code·class="inline">esocktnosupport</code>·-·Socket·type·not·supported</li><li><code·class="inline">espipe</code>·-·Invalid·seek</li><li><code·class="inline">esrch</code>·-·No·such·process</li><li><code·class="inline">esrmnt</code>·-·Srmount·error</li><li><code·class="inline">estale</code>·-·Stale·remote·file·handle</li><li><code·class="inline">esuccess</code>·-·Error·0</li><li><code·class="inline">etime</code>·-·Timer·expired</li><li><code·class="inline">etimedout</code>·-·Connection·timed·out</li><li><code·class="inline">etoomanyrefs</code>·-·Too·many·references</li><li><code·class="inline">etxtbsy</code>·-·Text·file·or·pseudo-device·busy</li><li><code·class="inline">euclean</code>·-·Structure·needs·cleaning</li><li><code·class="inline">eunatch</code>·-·Protocol·driver·not·attached</li><li><code·class="inline">eusers</code>·-·Too·many·users</li><li><code·class="inline">eversion</code>·-·Version·mismatch</li><li><code·class="inline">ewouldblock</code>·-·Operation·would·block</li><li><code·class="inline">exdev</code>·-·Cross-device·link</li><li><code·class="inline">exfull</code>·-·Message·tables·full</li><li><code·class="inline">nxdomain</code>·-·Hostname·or·domain·name·cannot·be·found</li></ul> |
| 177 | ····</section> | 177 | ····</section> |
| Offset 957, 15 lines modified | Offset 957, 15 lines modified | ||
| 957 | ···················h_addrtype·::·inet·|·inet6, | 957 | ···················h_addrtype·::·inet·|·inet6, |
| 958 | ···················h_length·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:non_neg_integer/0">non_neg_integer</a>(), | 958 | ···················h_length·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:non_neg_integer/0">non_neg_integer</a>(), |
| 959 | ···················h_addr_list·::·[<a·href="inet.html#t:ip_address/0">inet:ip_address</a>()]}.</pre> | 959 | ···················h_addr_list·::·[<a·href="inet.html#t:ip_address/0">inet:ip_address</a>()]}.</pre> |
| 960 | ······</div> | 960 | ······</div> |
| 961 | <p>A·record·describing·a·host;·name·and·address.</p><p>Corresponds·to·the·<code·class="inline">C</code>:·<code·class="inline">struct hostent</code>·as·returned·by·for·example | 961 | <p>A·record·describing·a·host;·name·and·address.</p><p>Corresponds·to·the·<code·class="inline">C</code>:·<code·class="inline">struct hostent</code>·as·returned·by·for·example |
| 962 | <code·class="inline">gethostbyname(3)</code>.</p><p>The·record·is·defined·in·the·Kernel·include·file·<code·class="inline">"inet.hrl"</code>.</p><p>Add·the·following·directive·to·the·module:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id=" | 962 | <code·class="inline">gethostbyname(3)</code>.</p><p>The·record·is·defined·in·the·Kernel·include·file·<code·class="inline">"inet.hrl"</code>.</p><p>Add·the·following·directive·to·the·module:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id="9787309696-1">(</span><span·class="s">"kernel/include/inet.hrl"</span><span·class="p"·data-group-id="9787309696-1">)</span><span·class="p">.</span></code></pre> |
| 963 | ··</section> | 963 | ··</section> |
| 964 | </section> | 964 | </section> |
| 965 | <section·class="detail"·id="t:hostname/0"> | 965 | <section·class="detail"·id="t:hostname/0"> |
| 966 | ··<div·class="detail-header"> | 966 | ··<div·class="detail-header"> |
| 967 | ····<a·href="#t:hostname/0"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·type"> | 967 | ····<a·href="#t:hostname/0"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·type"> |
| 968 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 968 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 2054, 17 lines modified | Offset 2054, 17 lines modified | ||
| 2054 | coded·in·native·endianness.</p><p>Asking·for·and·inspecting·raw·socket·options·require·low-level·information·about | 2054 | coded·in·native·endianness.</p><p>Asking·for·and·inspecting·raw·socket·options·require·low-level·information·about |
| 2055 | the·current·operating·system·and·TCP·stack.</p><p><em>Example:</em></p><p>Consider·a·Linux·machine·where·option·<code·class="inline">TCP_INFO</code>·can·be·used·to·collect·TCP | 2055 | the·current·operating·system·and·TCP·stack.</p><p><em>Example:</em></p><p>Consider·a·Linux·machine·where·option·<code·class="inline">TCP_INFO</code>·can·be·used·to·collect·TCP |
| 2056 | statistics·for·a·socket.·Assume·you·are·interested·in·field·<code·class="inline">tcpi_sacked</code>·of | 2056 | statistics·for·a·socket.·Assume·you·are·interested·in·field·<code·class="inline">tcpi_sacked</code>·of |
| 2057 | <code·class="inline">struct·tcp_info</code>·filled·in·when·asking·for·<code·class="inline">TCP_INFO</code>.·To·be·able·to·access | 2057 | <code·class="inline">struct·tcp_info</code>·filled·in·when·asking·for·<code·class="inline">TCP_INFO</code>.·To·be·able·to·access |
| 2058 | this·information,·you·need·to·know·the·following:</p><ul><li>The·numeric·value·of·protocol·level·<code·class="inline">IPPROTO_TCP</code></li><li>The·numeric·value·of·option·<code·class="inline">TCP_INFO</code></li><li>The·size·of·<code·class="inline">struct·tcp_info</code></li><li>The·size·and·offset·of·the·specific·field</li></ul><p>By·inspecting·the·headers·or·writing·a·small·C·program,·it·is·found·that | 2058 | this·information,·you·need·to·know·the·following:</p><ul><li>The·numeric·value·of·protocol·level·<code·class="inline">IPPROTO_TCP</code></li><li>The·numeric·value·of·option·<code·class="inline">TCP_INFO</code></li><li>The·size·of·<code·class="inline">struct·tcp_info</code></li><li>The·size·and·offset·of·the·specific·field</li></ul><p>By·inspecting·the·headers·or·writing·a·small·C·program,·it·is·found·that |
| 2059 | <code·class="inline">IPPROTO_TCP</code>·is·6,·<code·class="inline">TCP_INFO</code>·is·11,·the·structure·size·is·92·(bytes),·the | 2059 | <code·class="inline">IPPROTO_TCP</code>·is·6,·<code·class="inline">TCP_INFO</code>·is·11,·the·structure·size·is·92·(bytes),·the |
| 2060 | offset·of·<code·class="inline">tcpi_sacked</code>·is·28·bytes,·and·the·value·is·a·32-bit·integer.·The | 2060 | offset·of·<code·class="inline">tcpi_sacked</code>·is·28·bytes,·and·the·value·is·a·32-bit·integer.·The |
| 2061 | following·code·can·be·used·to·retrieve·the·value:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">get_tcpi_sacked</span><span·class="p"·data-group-id=" | 2061 | following·code·can·be·used·to·retrieve·the·value:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">get_tcpi_sacked</span><span·class="p"·data-group-id="1538035174-1">(</span><span·class="n">Sock</span><span·class="p"·data-group-id="1538035174-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 2062 | ····</span><span·class="p"·data-group-id=" | 2062 | ····</span><span·class="p"·data-group-id="1538035174-2">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="p"·data-group-id="1538035174-3">[</span><span·class="p"·data-group-id="1538035174-4">{</span><span·class="ss">raw</span><span·class="p">,</span><span·class="p">_</span><sp[·...·truncated·by·diffoscope;·len:·943,·SHA:·67c16e4866458b34285fce8765974c10a0a673c3334ec8df3f3426b14bb9220d·...·]-5">)</span><span·class="p">,</span><span·class="w"> |
| 2063 | ····</span><span·class="p"·data-group-id=" | 2063 | ····</span><span·class="p"·data-group-id="1538035174-8"><<</span><span·class="p">_</span><span·class="p">:</span><span·class="mi">28</span><span·class="o">/</span><span·class="ss">binary</span><span·class="p">,</span><span·class="n">TcpiSacked</span><span·class="p">:</span><span·class="mi">3[·...·truncated·by·diffoscope;·len:·205,·SHA:·c8f1e585a76621801418bfdc9711b68d809c5446f99b815c7f51320ed64d41a4·...·]-8">>></span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">Info</span><span·class="p">,</span><span·class="w"> |
| 2064 | ····</span><span·class="n">TcpiSacked</span><span·class="p">.</span></code></pre><p>Preferably,·you·would·check·the·machine·type,·the·operating·system,·and·the | 2064 | ····</span><span·class="n">TcpiSacked</span><span·class="p">.</span></code></pre><p>Preferably,·you·would·check·the·machine·type,·the·operating·system,·and·the |
| 2065 | Kernel·version·before·executing·anything·similar·to·this·code.</p> | 2065 | Kernel·version·before·executing·anything·similar·to·this·code.</p> |
| 2066 | ··</section> | 2066 | ··</section> |
| 2067 | </section> | 2067 | </section> |
| 2068 | <section·class="detail"·id="getstat/1"> | 2068 | <section·class="detail"·id="getstat/1"> |
| 2069 | ··<div·class="detail-header"> | 2069 | ··<div·class="detail-header"> |
| Offset 2385, 15 lines modified | Offset 2385, 15 lines modified | ||
| 2385 | ······<div·class="specs"> | 2385 | ······<div·class="specs"> |
| 2386 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·monitor(Socket)·->·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:reference/0">reference</a>()·when·Socket·::·<a·href="#t:socket/0">socket</a>().</pre> | 2386 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·monitor(Socket)·->·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:reference/0">reference</a>()·when·Socket·::·<a·href="#t:socket/0">socket</a>().</pre> |
| 2387 | ······</div> | 2387 | ······</div> |
| 2388 | <p>Start·a·socket·monitor.</p><p>If·the·<code·class="inline">Socket</code>·to·monitor·doesn't·exist·or·when·the·monitor·is·triggered, | 2388 | <p>Start·a·socket·monitor.</p><p>If·the·<code·class="inline">Socket</code>·to·monitor·doesn't·exist·or·when·the·monitor·is·triggered, |
| 2389 | a·<code·class="inline">'DOWN'</code>·message·is·sent·that·has·the·following·pattern:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">» ····</span><span·class="p"·data-group-id=" | 2389 | a·<code·class="inline">'DOWN'</code>·message·is·sent·that·has·the·following·pattern:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">» ····</span><span·class="p"·data-group-id="6550262081-1">{</span><span·class="ss">'DOWN'</span><span·class="p">,</span><span·class="w">·</span><span·class="n">MonitorRef</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Type</span><span·class="p">,</span><span·class="w">[·...·truncated·by·diffoscope;·len:·153,·SHA:·77ca4f503ac81ccb84199639763eb0d3ee99e998862eabec5173209e1dc478de·...·]-1">}</span></code></pre><ul><li><p><strong><code·class="inline">MonitorRef</code></strong>·-·The·return·value·from·this·function.</p></li><li><p><strong><code·class="inline">Type</code></strong>·-·The·type·of·socket,·can·be·one·of·the·following |
| 2390 | <a·href="../../../../erts-16.0/doc/html/erlang.html#t:atom/0"><code·class="inline">atom/0</code></a>s:·<code·class="inline">port</code>·or·<code·class="inline">socket</code>.</p></li><li><p><strong><code·class="inline">Object</code></strong>·-·The·monitored·entity,·the·socket,·which·triggered·the·event.</p></li><li><p><strong><code·class="inline">Info</code></strong>·-·Either·the·termination·reason·of·the·socket·or·<code·class="inline">nosock</code> | 2390 | <a·href="../../../../erts-16.0/doc/html/erlang.html#t:atom/0"><code·class="inline">atom/0</code></a>s:·<code·class="inline">port</code>·or·<code·class="inline">socket</code>.</p></li><li><p><strong><code·class="inline">Object</code></strong>·-·The·monitored·entity,·the·socket,·which·triggered·the·event.</p></li><li><p><strong><code·class="inline">Info</code></strong>·-·Either·the·termination·reason·of·the·socket·or·<code·class="inline">nosock</code> |
| 2391 | (the·<code·class="inline">Socket</code>·did·not·exist·when·this·function·was·called).</p></li></ul><p>Making·several·calls·to·<a·href="#monitor/1"><code·class="inline">inet:monitor/1</code></a>·for·the·same·<code·class="inline">Socket</code> | 2391 | (the·<code·class="inline">Socket</code>·did·not·exist·when·this·function·was·called).</p></li></ul><p>Making·several·calls·to·<a·href="#monitor/1"><code·class="inline">inet:monitor/1</code></a>·for·the·same·<code·class="inline">Socket</code> |
| 2392 | is·not·an·error;·one·monitor·is·created·per·call.</p><p>The·monitor·is·triggered·when·the·socket·is·closed·in·any·way·such·as | 2392 | is·not·an·error;·one·monitor·is·created·per·call.</p><p>The·monitor·is·triggered·when·the·socket·is·closed·in·any·way·such·as |
| 2393 | an·API·call,·remote·end·close,·closed·by·signal·when·owner·exits,·...</p> | 2393 | an·API·call,·remote·end·close,·closed·by·signal·when·owner·exits,·...</p> |
| 2394 | ··</section> | 2394 | ··</section> |
| 2395 | </section> | 2395 | </section> |
| 2396 | <section·class="detail"·id="ntoa/1"> | 2396 | <section·class="detail"·id="ntoa/1"> |
| Offset 3224, 15 lines modified | Offset 3224, 15 lines modified | ||
| 3224 | ······<p·class="built-using"> | 3224 | ······<p·class="built-using"> |
| 3225 | ········Built·using | 3225 | ········Built·using |
| 3226 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 3226 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 3227 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 3227 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 3228 | ······</p> | 3228 | ······</p> |
| 3229 | <p>Copyright·©·1996-202 | 3229 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 3230 | ····</footer> | 3230 | ····</footer> |
| 3231 | ··</div> | 3231 | ··</div> |
| 3232 | </main> | 3232 | </main> |
| 3233 | </div> | 3233 | </div> |
| 3234 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 3234 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 3235 | ··<script> | 3235 | ··<script> |
| 3236 | ··let·initialized·=·false; | 3236 | ··let·initialized·=·false; |
| Offset 175, 23 lines modified | Offset 175, 23 lines modified | ||
| 175 | <p>The·following·data·types·concern·the·DNS·client:</p><h2·id="module-example"·class="section-heading"> | 175 | <p>The·following·data·types·concern·the·DNS·client:</p><h2·id="module-example"·class="section-heading"> |
| 176 | ··<a·href="#module-example"·class="hover-link"> | 176 | ··<a·href="#module-example"·class="hover-link"> |
| 177 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 177 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 178 | ··</a> | 178 | ··</a> |
| 179 | ··<span·class="text">Example</span> | 179 | ··<span·class="text">Example</span> |
| 180 | </h2> | 180 | </h2> |
| 181 | <p>This·access·functions·example·shows·how·<a·href="#lookup/3"><code·class="inline">lookup/3</code></a>·can·be·implemented·using | 181 | <p>This·access·functions·example·shows·how·<a·href="#lookup/3"><code·class="inline">lookup/3</code></a>·can·be·implemented·using |
| 182 | <a·href="#resolve/3"><code·class="inline">resolve/3</code></a>·from·outside·the·module:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">example_lookup</span><span·class="p"·data-group-id=" | 182 | <a·href="#resolve/3"><code·class="inline">resolve/3</code></a>·from·outside·the·module:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">example_lookup</span><span·class="p"·data-group-id="7848778071-1">(</span><span·class="n">Name</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Class</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Type</span><span·class="p"·data-group-id="7848778071-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 183 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">inet_res</span><span·class="p">:</span><span·class="nf">resolve</span><span·class="p"·data-group-id=" | 183 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">inet_res</span><span·class="p">:</span><span·class="nf">resolve</span><span·class="p"·data-group-id="7848778071-2">(</span><span·class="n">Name</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Class</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Type</span><span·class="p"·data-group-id="7848778071-2">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 184 | ········</span><span·class="p"·data-group-id=" | 184 | ········</span><span·class="p"·data-group-id="7848778071-3">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="n">Msg</span><span·class="p"·data-group-id="7848778071-3">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 185 | ············</span><span·class="p"·data-group-id=" | 185 | ············</span><span·class="p"·data-group-id="7848778071-4">[</span><span·class="nc">inet_dns</span><span·class="p">:</span><span·class="nf">rr</span><span·class="p"·data-group-id="7848778071-5">(</span><span·class="n">RR</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">data</spa[·...·truncated·by·diffoscope;·len:·43,·SHA:·539b4d1c5be7e02c490b11097c28331f156ade65b1a672c97250f63be3a0554a·...·]-5">)</span><span·class="w"> |
| 186 | ·············</span><span·class="p">||</span><span·class="w">·</span><span·class="n">RR</span><span·class="w">·</span><span·class="o"><-</span><span·class="w">·</span><span·class="nc">inet_dns</span><span·class="p">:</span><span·class="nf">msg</span><span·class="p"·data-group-id=" | 186 | ·············</span><span·class="p">||</span><span·class="w">·</span><span·class="n">RR</span><span·class="w">·</span><span·class="o"><-</span><span·class="w">·</span><span·class="nc">inet_dns</span><span·class="p">:</span><span·class="nf">msg</span><span·class="p"·data-group-id="7848778071-6">(</span><span·class="n">Msg</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">anlist</span><span·class="p"·data-group-id="7848778071-6">)</span><span·class="p">,</span><span·class="w"> |
| 187 | ·················</span><span·class="nc">inet_dns</span><span·class="p">:</span><span·class="nf">rr</span><span·class="p"·data-group-id=" | 187 | ·················</span><span·class="nc">inet_dns</span><span·class="p">:</span><span·class="nf">rr</span><span·class="p"·data-group-id="7848778071-7">(</span><span·class="n">RR</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">type</span><span·class="p"·data-group-id="7848778071-7">)</span><span·class="w">·</span><span·class="o">=:=</span><span·class="w">·</span><span·class="n">Type</span><span·class="p">,</span><span·class="w"> |
| 188 | ·················</span><span·class="nc">inet_dns</span><span·class="p">:</span><span·class="nf">rr</span><span·class="p"·data-group-id=" | 188 | ·················</span><span·class="nc">inet_dns</span><span·class="p">:</span><span·class="nf">rr</span><span·class="p"·data-group-id="7848778071-8">(</span><span·class="n">RR</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">class</span><span·class="p"·data-group-id="7848778071-8">)</span><span·class="w">·</span><span·class="o">=:=</span><span·class="w">·</span><span[·...·truncated·by·diffoscope;·len:·64,·SHA:·267e17fba7b7e69f848fd9383cdf01a580b2e8401766a4a50414cbb4365d17ad·...·]-4">]</span><span·class="p">;</span><span·class="w"> |
| 189 | ········</span><span·class="p"·data-group-id=" | 189 | ········</span><span·class="p"·data-group-id="7848778071-9">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="p">_</span><span·class="p"·data-group-id="7848778071-9">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 190 | ············</span><span·class="p"·data-group-id=" | 190 | ············</span><span·class="p"·data-group-id="7848778071-10">[</span><span·class="p"·data-group-id="7848778071-10">]</span><span·class="w"> |
| 191 | ·····</span><span·class="k">end</span><span·class="p">.</span></code></pre> | 191 | ·····</span><span·class="k">end</span><span·class="p">.</span></code></pre> |
| 192 | ····</section> | 192 | ····</section> |
| 193 | </div> | 193 | </div> |
| 194 | ··<section·id="summary"·class="details-list"> | 194 | ··<section·id="summary"·class="details-list"> |
| 195 | ····<h1·class="section-heading"> | 195 | ····<h1·class="section-heading"> |
| Offset 584, 65 lines modified | Offset 584, 65 lines modified | ||
| 584 | ··········<pre·translate="no"><span·class="attribute">-type</span>·dns_msg()·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>().</pre> | 584 | ··········<pre·translate="no"><span·class="attribute">-type</span>·dns_msg()·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>().</pre> |
| 585 | ······</div> | 585 | ······</div> |
| 586 | <p>A·DNS·message.</p><p>This·is·the·start·of·a·hierarchy·of·opaque·data·structures·that·can·be | 586 | <p>A·DNS·message.</p><p>This·is·the·start·of·a·hierarchy·of·opaque·data·structures·that·can·be |
| 587 | examined·with·access·functions·in·<code·class="inline">inet_dns</code>,·which·return·lists·of | 587 | examined·with·access·functions·in·<code·class="inline">inet_dns</code>,·which·return·lists·of |
| 588 | <code·class="inline">{Field,Value}</code>·tuples.·The·arity·2·functions·return·the·value | 588 | <code·class="inline">{Field,Value}</code>·tuples.·The·arity·2·functions·return·the·value |
| 589 | for·a·specified·field.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">dns_msg</span><span·class="p"·data-group-id=" | 589 | for·a·specified·field.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">dns_msg</span><span·class="p"·data-group-id="0030316413-1">(</span><span·class="p"·data-group-id="0030316413-1">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">DnsMsg</span><span·class="w"> |
| 590 | ····</span><span·class="nc">inet_dns</span><span·class="p">:</span><span·class="nf">msg</span><span·class="p"·data-group-id=" | 590 | ····</span><span·class="nc">inet_dns</span><span·class="p">:</span><span·class="nf">msg</span><span·class="p"·data-group-id="0030316413-2">(</span><span·class="n">DnsMsg</span><span·class="p"·data-group-id="0030316413-2">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 591 | ········</span><span·class="p"·data-group-id=" | 591 | ········</span><span·class="p"·data-group-id="0030316413-3">[</span><span·class="w">·</span><span·class="p"·data-group-id="0030316413-4">{</span><span·class="ss">header</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">dns_header</span><span·class="p"·data-group-id="0030316413-5">[·...·truncated·by·diffoscope;·len:·101,·SHA:·4e6208d3f97a840bac96bf65db209432970e9932a28574c4de635c603708e274·...·]3-4">}</span><span·class="w"> |
| 592 | ········</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id=" | 592 | ········</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id="0030316413-6">{</span><span·class="ss">qdlist</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">dns_query</span><span·class="p"·data-group-id="0030316413-7">(</span><span·class="p"·data-group-id="0030316413-7">)</span><span·class="p"·d[·...·truncated·by·diffoscope;·len:·23,·SHA:·894d1ac1804a251478f2fe713c78bdf3fee260bdbbad833a1222d76cb65b1908·...·]3-6">}</span><span·class="w"> |
| 593 | ········</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id=" | 593 | ········</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id="0030316413-8">{</span><span·class="ss">anlist</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">dns_rr</span><span·class="p"·data-group-id="0030316413-9">(</span><span·class="p"·data-group-id="0030316413-9">)</span><span·class="p"·data[·...·truncated·by·diffoscope;·len:·20,·SHA:·b787e5cfa886b54614dbb611d5a3e2e46d46d814f0336a1ef5d68b5426e7794b·...·]3-8">}</span><span·class="w"> |
| 594 | ········</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id=" | 594 | ········</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id="0030316413-10">{</span><span·class="ss">nslist</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">dns_rr</span><span·class="p"·data-group-id="0030316413-11">(</span><span·class="p"·data-group-id="0030316413-11">)</span><span·class="p"·d[·...·truncated·by·diffoscope;·len:·23,·SHA:·894d1ac1804a251478f2fe713c78bdf3fee260bdbbad833a1222d76cb65b1908·...·]3-10">}</span><span·class="w"> |
| 595 | ········</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id=" | 595 | ········</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id="0030316413-12">{</span><span·class="ss">arlist</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">dns_rr</span><span·class="p"·data-group-id="0030316413-13">(</span><span·class="p"·data-group-id="0030316413-13">)</span><span·class="p"·d[·...·truncated·by·diffoscope;·len:·101,·SHA:·99da789307b2e8f53df0b072ee2b2a0318858b2ea61de9a05ef22ca70fc317b4·...·]3-3">]</span><span·class="w"> |
| 596 | ····</span><span·class="nc">inet_dns</span><span·class="p">:</span><span·class="nf">msg</span><span·class="p"·data-group-id=" | 596 | ····</span><span·class="nc">inet_dns</span><span·class="p">:</span><span·class="nf">msg</span><span·class="p"·data-group-id="0030316413-14">(</span><span·class="n">DnsMsg</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">header</span><span·class="p"·data-group-id="0030316413-14">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</s[·...·truncated·by·diffoscope;·len:·132,·SHA:·ab10a1dbbf7eec1224cc3dfeaeddc3165d9e5f037c20ecbb905e417fc6c12367·...·]3-15">)</span><span·class="w">·</span><span·class="c1">%·for·example</span><span·class="w"> |
| 597 | ····</span><span·class="nc">inet_dns</span><span·class="p">:</span><span·class="nf">msg</span><span·class="p"·data-group-id=" | 597 | ····</span><span·class="nc">inet_dns</span><span·class="p">:</span><span·class="nf">msg</span><span·class="p"·data-group-id="0030316413-16">(</span><span·class="n">DnsMsg</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Field</span><span·class="p"·data-group-id="0030316413-16">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">Value</span><span·class="w"> |
| 598 | </span><span·class="nf">dns_header</span><span·class="p"·data-group-id=" | 598 | </span><span·class="nf">dns_header</span><span·class="p"·data-group-id="0030316413-17">(</span><span·class="p"·data-group-id="0030316413-17">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">DnsHeader</span><span·class="w"> |
| 599 | ····</span><span·class="nc">inet_dns</span><span·class="p">:</span><span·class="nf">header</span><span·class="p"·data-group-id=" | 599 | ····</span><span·class="nc">inet_dns</span><span·class="p">:</span><span·class="nf">header</span><span·class="p"·data-group-id="0030316413-18">(</span><span·class="n">DnsHeader</span><span·class="p"·data-group-id="0030316413-18">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 600 | ········</span><span·class="p"·data-group-id=" | 600 | ········</span><span·class="p"·data-group-id="0030316413-19">[</span><span·class="w">·</span><span·class="p"·data-group-id="0030316413-20">{</span><span·class="ss">id</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="0030316413-21">(</s[·...·truncated·by·diffoscope;·len:·98,·SHA:·4f7a199e5f5990cf70e6bd7a6cf7e4a8326e330a230a150bfaedd9443214958f·...·]3-20">}</span><span·class="w"> |
| 601 | ········</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id=" | 601 | ········</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id="0030316413-22">{</span><span·class="ss">qr</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">boolean</span><span·class="p"·data-group-id="0030316413-23">(</span><span·class="p"·data-group-id="0030316413-23">)</span><span·class="p"·data[·...·truncated·by·diffoscope;·len:·20,·SHA:·b787e5cfa886b54614dbb611d5a3e2e46d46d814f0336a1ef5d68b5426e7794b·...·]3-22">}</span><span·class="w"> |
| 602 | ········</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id=" | 602 | ········</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id="0030316413-24">{</span><span·class="ss">opcode</span><span·class="p">,</span><span·class="w">·</span><span·class="k">query</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">iquery</span><span·class="w">·</span><[·...·truncated·by·diffoscope;·len:·328,·SHA:·f873b1282bc2b4b7a4d343c78b303426cd113885512a7b1b90a2ec22a6ff1ca5·...·]3-24">}</span><span·class="w"> |
| 603 | ········</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id=" | 603 | ········</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id="0030316413-26">{</span><span·class="ss">aa</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">boolean</span><span·class="p"·data-group-id="0030316413-27">(</span><span·class="p"·data-group-id="0030316413-27">)</span><span·class="p"·data[·...·truncated·by·diffoscope;·len:·20,·SHA:·b787e5cfa886b54614dbb611d5a3e2e46d46d814f0336a1ef5d68b5426e7794b·...·]3-26">}</span><span·class="w"> |
| 604 | ········</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id=" | 604 | ········</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id="0030316413-28">{</span><span·class="ss">tc</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">boolean</span><span·class="p"·data-group-id="0030316413-29">(</span><span·class="p"·data-group-id="0030316413-29">)</span><span·class="p"·data[·...·truncated·by·diffoscope;·len:·20,·SHA:·b787e5cfa886b54614dbb611d5a3e2e46d46d814f0336a1ef5d68b5426e7794b·...·]3-28">}</span><span·class="w"> |
| 605 | ········</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id=" | 605 | ········</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id="0030316413-30">{</span><span·class="ss">rd</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">boolean</span><span·class="p"·data-group-id="0030316413-31">(</span><span·class="p"·data-group-id="0030316413-31">)</span><span·class="p"·data[·...·truncated·by·diffoscope;·len:·20,·SHA:·b787e5cfa886b54614dbb611d5a3e2e46d46d814f0336a1ef5d68b5426e7794b·...·]3-30">}</span><span·class="w"> |
| 606 | ········</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id=" | 606 | ········</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id="0030316413-32">{</span><span·class="ss">ra</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">boolean</span><span·class="p"·data-group-id="0030316413-33">(</span><span·class="p"·data-group-id="0030316413-33">)</span><span·class="p"·data[·...·truncated·by·diffoscope;·len:·20,·SHA:·b787e5cfa886b54614dbb611d5a3e2e46d46d814f0336a1ef5d68b5426e7794b·...·]3-32">}</span><span·class="w"> |
| 607 | ········</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id=" | 607 | ········</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id="0030316413-34">{</span><span·class="ss">pr</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">boolean</span><span·class="p"·data-group-id="0030316413-35">(</span><span·class="p"·data-group-id="0030316413-35">)</span><span·class="p"·data[·...·truncated·by·diffoscope;·len:·20,·SHA:·b787e5cfa886b54614dbb611d5a3e2e46d46d814f0336a1ef5d68b5426e7794b·...·]3-34">}</span><span·class="w"> |
| 608 | ········</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id=" | 608 | ········</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id="0030316413-36">{</span><span·class="ss">rcode</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="0030316413-37">(</span><span·class="mi">0</span><span·class="p">.</span><span·class="p">.</spa[·...·truncated·by·diffoscope;·len:·200,·SHA:·540f4b899b267341beb27b7cb79abccdb0204e144ccc4acee65636f07442f7c8·...·]3-19">]</span><span·class="w"> |
| 609 | ····</span><span·class="nc">inet_dns</span><span·class="p">:</span><span·class="nf">header</span><span·class="p"·data-group-id=" | 609 | ····</span><span·class="nc">inet_dns</span><span·class="p">:</span><span·class="nf">header</span><span·class="p"·data-group-id="0030316413-38">(</span><span·class="n">DnsHeader</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Field</span><span·class="p"·data-group-id="0030316413-38">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">Value</span><span·class="w"> |
| 610 | </span><span·class="nf">query_type</span><span·class="p"·data-group-id=" | 610 | </span><span·class="nf">query_type</span><span·class="p"·data-group-id="0030316413-39">(</span><span·class="p"·data-group-id="0030316413-39">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">axfr</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·c[·...·truncated·by·diffoscope;·len:·423,·SHA:·0ecbb2bcc184db18cc3807b8fc7a8426bf4b7f0ec11c446a68c36cf157b59e5f·...·]3-40">)</span><span·class="w"> |
| 611 | </span><span·class="nf">dns_query</span><span·class="p"·data-group-id=" | 611 | </span><span·class="nf">dns_query</span><span·class="p"·data-group-id="0030316413-41">(</span><span·class="p"·data-group-id="0030316413-41">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">DnsQuery</span><span·class="w"> |
| 612 | ····</span><span·class="nc">inet_dns</span><span·class="p">:</span><span·class="nf">dns_query</span><span·class="p"·data-group-id=" | 612 | ····</span><span·class="nc">inet_dns</span><span·class="p">:</span><span·class="nf">dns_query</span><span·class="p"·data-group-id="0030316413-42">(</span><span·class="n">DnsQuery</span><span·class="p"·data-group-id="0030316413-42">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 613 | ········</span><span·class="p"·data-group-id=" | 613 | ········</span><span·class="p"·data-group-id="0030316413-43">[</span><span·class="w">·</span><span·class="p"·data-group-id="0030316413-44">{</span><span·class="ss">domain</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">dns_name</span><span·class="p"·data-group-id="0030316413-45"[·...·truncated·by·diffoscope;·len:·103,·SHA:·412095a3618ede003354ec4b181e22db3be5a4f9251973becc631c240e493c78·...·]3-44">}</span><span·class="w"> |
| 614 | ········</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id=" | 614 | ········</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id="0030316413-46">{</span><span·class="ss">type</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">query_type</span><span·class="p"·data-group-id="0030316413-47">(</span><span·class="p"·data-group-id="0030316413-47">)</span><span·class="p"[·...·truncated·by·diffoscope;·len:·25,·SHA:·b879166e5a158d35111b2beed17ec47f020616419281fc7b31ba021f40445539·...·]3-46">}</span><span·class="w"> |
| 615 | ········</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id=" | 615 | ········</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id="0030316413-48">{</span><span·class="ss">class</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">dns_class</span><span·class="p"·data-group-id="0030316413-49">(</span><span·class="p"·data-group-id="0030316413-49">)</span><span·class="p"[·...·truncated·by·diffoscope;·len:·103,·SHA:·0348efde59dd44fe73c734669ed8c2f5ab1b1f581d1ec8df2f4371456a2e815b·...·]3-43">]</span><span·class="w"> |
| 616 | ····</span><span·class="nc">inet_dns</span><span·class="p">:</span><span·class="nf">dns_query</span><span·class="p"·data-group-id=" | 616 | ····</span><span·class="nc">inet_dns</span><span·class="p">:</span><span·class="nf">dns_query</span><span·class="p"·data-group-id="0030316413-50">(</span><span·class="n">DnsQuery</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Field</span><span·class="p"·data-group-id="0030316413-50">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">Value</span><span·class="w"> |
| 617 | </span><span·class="nf">dns_rr</span><span·class="p"·data-group-id=" | 617 | </span><span·class="nf">dns_rr</span><span·class="p"·data-group-id="0030316413-51">(</span><span·class="p"·data-group-id="0030316413-51">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">DnsRr</span><span·class="w"> |
| 618 | ····</span><span·class="nc">inet_dns</span><span·class="p">:</span><span·class="nf">rr</span><span·class="p"·data-group-id=" | 618 | ····</span><span·class="nc">inet_dns</span><span·class="p">:</span><span·class="nf">rr</span><span·class="p"·data-group-id="0030316413-52">(</span><span·class="n">DnsRr</span><span·class="p"·data-group-id="0030316413-52">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">DnsRrFields</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="n">DnsRrOptFields</span><span·class="w"> |
| 619 | ····</span><span·class="n">DnsRrFields</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 619 | ····</span><span·class="n">DnsRrFields</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="0030316413-53">[</span><span·class="w">·</span><span·class="p"·data-group-id="0030316413-54">{</span><span·class="ss">domain</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">dns_name</span><span·class="p"·data-group-id="0030316413-55"[·...·truncated·by·diffoscope;·len:·103,·SHA:·8b44a221471cea60b500c65d0f1e82be4973df49428ffa9585abd17fee2e17a6·...·]3-54">}</span><span·class="w"> |
| 620 | ··················</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id=" | 620 | ··················</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id="0030316413-56">{</span><span·class="ss">type</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">dns_rr_type</span><span·class="p"·data-group-id="0030316413-57">(</span><span·class="p"·data-group-id="0030316413-57">)</span><span·class="p[·...·truncated·by·diffoscope;·len:·26,·SHA:·e045e5eaa1d9f41f1217fe4ba3f29ad0d3840869b15ee33ee98e962579219091·...·]3-56">}</span><span·class="w"> |
| 621 | ··················</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id=" | 621 | ··················</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id="0030316413-58">{</span><span·class="ss">class</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">dns_class</span><span·class="p"·data-group-id="0030316413-59">(</span><span·class="p"·data-group-id="0030316413-59">)</span><span·class="p"[·...·truncated·by·diffoscope;·len:·25,·SHA:·b879166e5a158d35111b2beed17ec47f020616419281fc7b31ba021f40445539·...·]3-58">}</span><span·class="w"> |
| 622 | ··················</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id=" | 622 | ··················</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id="0030316413-60">{</span><span·class="ss">ttl</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="0030316413-61">(</span><span·class="p"·data-group-id="0030316413-61">)</span><span·class="p"·dat[·...·truncated·by·diffoscope;·len:·21,·SHA:·f1f99b8e18be2e46c8a3527e189c177c0fd1b8af2d31a9278d2f5822a889ba23·...·]3-60">}</span><span·class="w"> |
| 623 | ··················</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id=" | 623 | ··················</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id="0030316413-62">{</span><span·class="ss">data</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">dns_data</span><span·class="p"·data-group-id="0030316413-63">(</span><span·class="p"·data-group-id="0030316413-63">)</span><span·class="p"·d[·...·truncated·by·diffoscope;·len:·101,·SHA:·867ddb90b6b2684a80041640970672f96fd9d67672d60f6087e85bcb40982d43·...·]3-53">]</span><span·class="w"> |
| 624 | ····</span><span·class="n">DnsRrOptFields</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 624 | ····</span><span·class="n">DnsRrOptFields</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="0030316413-64">[</span><span·class="w">·</span><span·class="p"·data-group-id="0030316413-65">{</span><span·class="ss">domain</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">dns_name</span><span·class="p"·data-group-id="0030316413-66"[·...·truncated·by·diffoscope;·len:·103,·SHA:·607c496c035d64dbfd1309a5b1d0b5531aca7c5f8f1af382900142a9f9cc9b1c·...·]3-65">}</span><span·class="w"> |
| 625 | ·····················</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id=" | 625 | ·····················</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id="0030316413-67">{</span><span·class="ss">type</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">opt</span><span·class="p"·data-group-id="0030316413-67">}</span><span·class="w"> |
| 626 | ·····················</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id=" | 626 | ·····················</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id="0030316413-68">{</span><span·class="ss">udp_payload_size</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="0030316413-69">(</span><span·class="p"·data-group-id="0030316413-69">)</span><span·[·...·truncated·by·diffoscope;·len:·34,·SHA:·7fd407ce4fdedac6fe356abf4ebcec5bc931f7369fd76e1daa7118dab1ea37bf·...·]3-68">}</span><span·class="w"> |
| 627 | ·····················</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id=" | 627 | ·····················</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id="0030316413-70">{</span><span·class="ss">ext_rcode</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="0030316413-71">(</span><span·class="p"·data-group-id="0030316413-71">)</span><span·class="[·...·truncated·by·diffoscope;·len:·27,·SHA:·d5768461af3100f58f01641c31930ec3bffd0002c2ed80779692c2014f22ea35·...·]3-70">}</span><span·class="w"> |
| 628 | ·····················</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id=" | 628 | ·····················</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id="0030316413-72">{</span><span·class="ss">version</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="0030316413-73">(</span><span·class="p"·data-group-id="0030316413-73">)</span><span·class="p"[·...·truncated·by·diffoscope;·len:·25,·SHA:·b879166e5a158d35111b2beed17ec47f020616419281fc7b31ba021f40445539·...·]3-72">}</span><span·class="w"> |
| 629 | ·····················</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id=" | 629 | ·····················</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id="0030316413-74">{</span><span·class="ss">z</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="0030316413-75">(</span><span·class="p"·data-group-id="0030316413-75">)</span><span·class="p"·data-[·...·truncated·by·diffoscope;·len:·19,·SHA:·31eaa93d27819fceab1216e9d638825b3120f8dca30b2ff7e184aad9a24edbf6·...·]3-74">}</span><span·class="w"> |
| 630 | ·····················</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id=" | 630 | ·····················</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id="0030316413-76">{</span><span·class="ss">data</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">dns_data</span><span·class="p"·data-group-id="0030316413-77">(</span><span·class="p"·data-group-id="0030316413-77">)</span><span·class="p"·d[·...·truncated·by·diffoscope;·len:·101,·SHA:·260c744597fca8775cc4ddec0eadfb5b5f654f06cb54e3b50b22852937f09817·...·]3-64">]</span><span·class="w"> |
| 631 | ····</span><span·class="nc">inet_dns</span><span·class="p">:</span><span·class="nf">rr</span><span·class="p"·data-group-id=" | 631 | ····</span><span·class="nc">inet_dns</span><span·class="p">:</span><span·class="nf">rr</span><span·class="p"·data-group-id="0030316413-78">(</span><span·class="n">DnsRr</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Field</span><span·class="p"·data-group-id="0030316413-78">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span[·...·truncated·by·diffoscope;·len:·472,·SHA:·55a745a3675c1504e7739bbe2e5beb8ab82e8f5f5084c27a10a0b4efbfb26144·...·]-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">msg</span><span·class="p">;</span><span·class="w"> |
| 632 | </span><span·class="nc">inet_dns</span><span·class="p">:</span><span·class="nf">record_type</span><span·class="p"·data-group-id=" | 632 | </span><span·class="nc">inet_dns</span><span·class="p">:</span><span·class="nf">record_type</span><span·class="p"·data-group-id="2568143927-3">(</span><span·class="nf">dns_header</span><span·class="p"·data-group-id="2568143927-4">(</span><span·class="p"·data-group-id="2568143927-4">)</span><span·class="p"·data-group-id="2568143927-3">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">header</span><span·class="p">;</span><span·class="w"> |
| 633 | </span><span·class="nc">inet_dns</span><span·class="p">:</span><span·class="nf">record_type</span><span·class="p"·data-group-id=" | 633 | </span><span·class="nc">inet_dns</span><span·class="p">:</span><span·class="nf">record_type</span><span·class="p"·data-group-id="2568143927-5">(</span><span·class="nf">dns_query</span><span·class="p"·data-group-id="2568143927-6">(</span><span·class="p"·data-group-id="2568143927-6">)</span><span·class="p"·data-group-id="2568143927-5">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">dns_query</span><span·class="p">;</span><span·class="w"> |
| 634 | </span><span·class="nc">inet_dns</span><span·class="p">:</span><span·class="nf">record_type</span><span·class="p"·data-group-id=" | 634 | </span><span·class="nc">inet_dns</span><span·class="p">:</span><span·class="nf">record_type</span><span·class="p"·data-group-id="2568143927-7">(</span><span·class="nf">dns_rr</span><span·class="p"·data-group-id="2568143927-8">(</span><span·class="p"·data-group-id="2568143927-8">)</span><span·class="p"·data-group-id="2568143927-7">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">rr</span><span·class="p">;</span><span·class="w"> |
| 635 | </span><span·class="nc">inet_dns</span><span·class="p">:</span><span·class="nf">record_type</span><span·class="p"·data-group-id=" | 635 | </span><span·class="nc">inet_dns</span><span·class="p">:</span><span·class="nf">record_type</span><span·class="p"·data-group-id="2568143927-9">(</span><span·class="p">_</span><span·class="p"·data-group-id="2568143927-9">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">undefined</span><span·class="p">.</span></code></pre><p>So,·<code·class="inline">inet_dns:(inet_dns:record_type(X))(X)</code>·converts·any·of·these·data |
| 636 | structures·into·a·<code·class="inline">{Field,Value}</code>·list.</p> | 636 | structures·into·a·<code·class="inline">{Field,Value}</code>·list.</p> |
| 637 | ··</section> | 637 | ··</section> |
| 638 | </section> | 638 | </section> |
| 639 | <section·class="detail"·id="t:dns_name/0"> | 639 | <section·class="detail"·id="t:dns_name/0"> |
| 640 | ··<div·class="detail-header"> | 640 | ··<div·class="detail-header"> |
| 641 | ····<a·href="#t:dns_name/0"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·type"> | 641 | ····<a·href="#t:dns_name/0"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·type"> |
| Offset 1456, 15 lines modified | Offset 1456, 15 lines modified | ||
| 1456 | ······<p·class="built-using"> | 1456 | ······<p·class="built-using"> |
| 1457 | ········Built·using | 1457 | ········Built·using |
| 1458 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1458 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1459 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1459 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1460 | ······</p> | 1460 | ······</p> |
| 1461 | <p>Copyright·©·1996-202 | 1461 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1462 | ····</footer> | 1462 | ····</footer> |
| 1463 | ··</div> | 1463 | ··</div> |
| 1464 | </main> | 1464 | </main> |
| 1465 | </div> | 1465 | </div> |
| 1466 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1466 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1467 | ··<script> | 1467 | ··<script> |
| 1468 | ··let·initialized·=·false; | 1468 | ··let·initialized·=·false; |
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| 187 | ······<p·class="built-using"> | 187 | ······<p·class="built-using"> |
| 188 | ········Built·using | 188 | ········Built·using |
| 189 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 189 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 190 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 190 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 191 | ······</p> | 191 | ······</p> |
| 192 | <p>Copyright·©·1996-202 | 192 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 193 | ····</footer> | 193 | ····</footer> |
| 194 | ··</div> | 194 | ··</div> |
| 195 | </main> | 195 | </main> |
| 196 | </div> | 196 | </div> |
| 197 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 197 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 198 | ··<script> | 198 | ··<script> |
| 199 | ··let·initialized·=·false; | 199 | ··let·initialized·=·false; |
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| 439 | ······<p·class="built-using"> | 439 | ······<p·class="built-using"> |
| 440 | ········Built·using | 440 | ········Built·using |
| 441 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 441 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 442 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 442 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 443 | ······</p> | 443 | ······</p> |
| 444 | <p>Copyright·©·1996-202 | 444 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 445 | ····</footer> | 445 | ····</footer> |
| 446 | ··</div> | 446 | ··</div> |
| 447 | </main> | 447 | </main> |
| 448 | </div> | 448 | </div> |
| 449 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 449 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 450 | ··<script> | 450 | ··<script> |
| 451 | ··let·initialized·=·false; | 451 | ··let·initialized·=·false; |
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| 126 | ··</h1> | 126 | ··</h1> |
| 127 | ····<section·id="moduledoc"> | 127 | ····<section·id="moduledoc"> |
| 128 | <p>API·module·for·Logger,·the·standard·logging·facility·in·Erlang/OTP.</p><p>This·module·implements·the·main·API·for·logging·in·Erlang/OTP.·To·create·a·log | 128 | <p>API·module·for·Logger,·the·standard·logging·facility·in·Erlang/OTP.</p><p>This·module·implements·the·main·API·for·logging·in·Erlang/OTP.·To·create·a·log |
| 129 | event,·use·the·<a·href="#logging-api-functions">API·functions</a>·or·the·log | 129 | event,·use·the·<a·href="#logging-api-functions">API·functions</a>·or·the·log |
| 130 | <a·href="#module-macros">macros</a>,·for·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="o">?</span><span·class="n">LOG_ERROR</span><span·class="p"·data-group-id=" | 130 | <a·href="#module-macros">macros</a>,·for·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="o">?</span><span·class="n">LOG_ERROR</span><span·class="p"·data-group-id="7724673201-1">(</span><span·class="s">"error·happened·because:·</span><span·class="si">~p</span><span·class="s">"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="7724673201-2">[</span><span·class="n">Reason</s[·...·truncated·by·diffoscope;·len:·98,·SHA:·256b9981b481b141ce60de007b140771b33a047213c4b4abd4af3eab1bc84642·...·]-1">)</span><span·class="p">.</span><span·class="w">···</span><span·class="c1">%·With·macro</span><span·class="w"> |
| 131 | </span><span·class="nc">logger</span><span·class="p">:</span><span·class="nf">error</span><span·class="p"·data-group-id=" | 131 | </span><span·class="nc">logger</span><span·class="p">:</span><span·class="nf">error</span><span·class="p"·data-group-id="7724673201-3">(</span><span·class="s">"error·happened·because:·</span><span·class="si">~p</span><span·class="s">"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="7724673201-4">[</span><span·class="n">Reason</s[·...·truncated·by·diffoscope;·len:·98,·SHA:·1b197ae2895199d6a80c6586fe0d2d2d789f5f4a260bb9818523d446b3658407·...·]-3">)</span><span·class="p">.</span><span·class="w">·</span><span·class="c1">%·Without·macro</span></code></pre><p>To·configure·the·Logger·backend,·use |
| 132 | <a·href="kernel_app.html#logger">Kernel·configuration·parameters</a>·or | 132 | <a·href="kernel_app.html#logger">Kernel·configuration·parameters</a>·or |
| 133 | <a·href="#configuration-api-functions">configuration·functions</a>·in·the·Logger·API.</p><p>By·default,·the·Kernel·application·installs·one·log·handler·at·system·start. | 133 | <a·href="#configuration-api-functions">configuration·functions</a>·in·the·Logger·API.</p><p>By·default,·the·Kernel·application·installs·one·log·handler·at·system·start. |
| 134 | This·handler·is·named·<code·class="inline">default</code>.·It·receives·and·processes·standard·log·events | 134 | This·handler·is·named·<code·class="inline">default</code>.·It·receives·and·processes·standard·log·events |
| 135 | produced·by·the·Erlang·runtime·system,·standard·behaviours·and·different | 135 | produced·by·the·Erlang·runtime·system,·standard·behaviours·and·different |
| 136 | Erlang/OTP·applications.·The·log·events·are·by·default·printed·to·the·terminal.</p><p>If·you·want·your·systems·logs·to·be·printed·to·a·file·instead,·you·must | 136 | Erlang/OTP·applications.·The·log·events·are·by·default·printed·to·the·terminal.</p><p>If·you·want·your·systems·logs·to·be·printed·to·a·file·instead,·you·must |
| 137 | configure·the·default·handler·to·do·so.·The·simplest·way·is·to·include·the | 137 | configure·the·default·handler·to·do·so.·The·simplest·way·is·to·include·the |
| 138 | following·in·your·<a·href="config.html"><code·class="inline">sys.config</code></a>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 138 | following·in·your·<a·href="config.html"><code·class="inline">sys.config</code></a>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="4251015860-1">[</span><span·class="p"·data-group-id="4251015860-2">{</span><span·class="ss">kernel</span><span·class="p">,</span><span·class="w"> |
| 139 | ··</span><span·class="p"·data-group-id=" | 139 | ··</span><span·class="p"·data-group-id="4251015860-3">[</span><span·class="p"·data-group-id="4251015860-4">{</span><span·class="ss">logger</span><span·class="p">,</span><span·class="w"> |
| 140 | ····</span><span·class="p"·data-group-id=" | 140 | ····</span><span·class="p"·data-group-id="4251015860-5">[</span><span·class="p"·data-group-id="4251015860-6">{</span><span·class="ss">handler</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">default</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">logger_std_h</span><span·class="p">,</span><span·class="w"> |
| 141 | ······</span><span·class="p"·data-group-id=" | 141 | ······</span><span·class="p"·data-group-id="4251015860-7">#{</span><span·class="ss">config</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="4251015860-8">#{</span><span·class="ss">file</span><span·class="w">·</span><span·class="p">=>[·...·truncated·by·diffoscope;·len:·493,·SHA:·73d96299a402f815c6739ddad09cbf90967820a16279de4be8501a0d367ef71b·...·]0-1">]</span><span·class="p">.</span></code></pre><p>For·more·information·about:</p><ul><li>the·Logger·facility·in·general,·see·the·<a·href="logger_chapter.html">User's·Guide</a>.</li><li>how·to·configure·Logger,·see·the |
| 142 | <a·href="logger_chapter.html#configuration">Configuration</a>·section·in·the·User's·Guide.</li><li>the·built-in·handlers,·see·<a·href="logger_std_h.html"><code·class="inline">logger_std_h</code></a>·and·<a·href="logger_disk_log_h.html"><code·class="inline">logger_disk_log_h</code></a>.</li><li>the·built-in·formatter,·see·<a·href="logger_formatter.html"><code·class="inline">logger_formatter</code></a>.</li><li>built-in·filters,·see·<a·href="logger_filters.html"><code·class="inline">logger_filters</code></a>.</li></ul><h2·id="module-macros"·class="section-heading"> | 142 | <a·href="logger_chapter.html#configuration">Configuration</a>·section·in·the·User's·Guide.</li><li>the·built-in·handlers,·see·<a·href="logger_std_h.html"><code·class="inline">logger_std_h</code></a>·and·<a·href="logger_disk_log_h.html"><code·class="inline">logger_disk_log_h</code></a>.</li><li>the·built-in·formatter,·see·<a·href="logger_formatter.html"><code·class="inline">logger_formatter</code></a>.</li><li>built-in·filters,·see·<a·href="logger_filters.html"><code·class="inline">logger_filters</code></a>.</li></ul><h2·id="module-macros"·class="section-heading"> |
| 143 | ··<a·href="#module-macros"·class="hover-link"> | 143 | ··<a·href="#module-macros"·class="hover-link"> |
| 144 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 144 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 145 | ··</a> | 145 | ··</a> |
| 146 | ··<span·class="text">Macros</span> | 146 | ··<span·class="text">Macros</span> |
| 147 | </h2> | 147 | </h2> |
| 148 | <p>The·following·macros·are·defined·in·<code·class="inline">logger.hrl</code>,·which·is·included·in·a·module | 148 | <p>The·following·macros·are·defined·in·<code·class="inline">logger.hrl</code>,·which·is·included·in·a·module |
| 149 | with·the·directive</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">····</span><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id="0 | 149 | with·the·directive</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">····</span><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id="1085015883-1">(</span><span·class="s">"kernel/include/logger.hrl"</span><span·class="p"·data-group-id="1085015883-1">)</span><span·class="p">.</span></code></pre><ul><li><code·class="inline">?LOG_EMERGENCY(StringOrReport[,Metadata])</code></li><li><code·class="inline">?LOG_EMERGENCY(FunOrFormat,Args[,Metadata])</code></li><li><code·class="inline">?LOG_ALERT(StringOrReport[,Metadata])</code></li><li><code·class="inline">?LOG_ALERT(FunOrFormat,Args[,Metadata])</code></li><li><code·class="inline">?LOG_CRITICAL(StringOrReport[,Metadata])</code></li><li><code·class="inline">?LOG_CRITICAL(FunOrFormat,Args[,Metadata])</code></li><li><code·class="inline">?LOG_ERROR(StringOrReport[,Metadata])</code></li><li><code·class="inline">?LOG_ERROR(FunOrFormat,Args[,Metadata])</code></li><li><code·class="inline">?LOG_WARNING(StringOrReport[,Metadata])</code></li><li><code·class="inline">?LOG_WARNING(FunOrFormat,Args[,Metadata])</code></li><li><code·class="inline">?LOG_NOTICE(StringOrReport[,Metadata])</code></li><li><code·class="inline">?LOG_NOTICE(FunOrFormat,Args[,Metadata])</code></li><li><code·class="inline">?LOG_INFO(StringOrReport[,Metadata])</code></li><li><code·class="inline">?LOG_INFO(FunOrFormat,Args[,Metadata])</code></li><li><code·class="inline">?LOG_DEBUG(StringOrReport[,Metadata])</code></li><li><code·class="inline">?LOG_DEBUG(FunOrFormat,Args[,Metadata])</code></li><li><code·class="inline">?LOG(Level,StringOrReport[,Metadata])</code></li><li><code·class="inline">?LOG(Level,FunOrFormat,Args[,Metadata])</code></li></ul><p>All·macros·expand·to·a·call·to·Logger,·where·<code·class="inline">Level</code>·is·taken·from·the·macro |
| 150 | name,·or·from·the·first·argument·in·the·case·of·the·<code·class="inline">?LOG</code>·macro.·Location·data | 150 | name,·or·from·the·first·argument·in·the·case·of·the·<code·class="inline">?LOG</code>·macro.·Location·data |
| 151 | is·added·to·the·metadata·as·described·under·the·<a·href="#t:metadata/0"><code·class="inline">metadata/0</code></a>·type·definition.</p><p>The·call·is·wrapped·in·a·case·statement·and·will·be·evaluated·only·if·<code·class="inline">Level</code>·is | 151 | is·added·to·the·metadata·as·described·under·the·<a·href="#t:metadata/0"><code·class="inline">metadata/0</code></a>·type·definition.</p><p>The·call·is·wrapped·in·a·case·statement·and·will·be·evaluated·only·if·<code·class="inline">Level</code>·is |
| 152 | equal·to·or·below·the·configured·log·level.</p><h2·id="module-see-also"·class="section-heading"> | 152 | equal·to·or·below·the·configured·log·level.</p><h2·id="module-see-also"·class="section-heading"> |
| 153 | ··<a·href="#module-see-also"·class="hover-link"> | 153 | ··<a·href="#module-see-also"·class="hover-link"> |
| 154 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 154 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 155 | ··</a> | 155 | ··</a> |
| 156 | ··<span·class="text">See·Also</span> | 156 | ··<span·class="text">See·Also</span> |
| Offset 1804, 34 lines modified | Offset 1804, 34 lines modified | ||
| 1804 | ······</div> | 1804 | ······</div> |
| 1805 | <p>Reads·the·application·configuration·parameter·<code·class="inline">logger</code>·and·calls | 1805 | <p>Reads·the·application·configuration·parameter·<code·class="inline">logger</code>·and·calls |
| 1806 | <a·href="#add_handlers/1"><code·class="inline">add_handlers/1</code></a>·with·its·contents.</p><p>This·function·should·be·used·by·custom·Logger·handlers·to·make·configuration | 1806 | <a·href="#add_handlers/1"><code·class="inline">add_handlers/1</code></a>·with·its·contents.</p><p>This·function·should·be·used·by·custom·Logger·handlers·to·make·configuration |
| 1807 | consistent·no·matter·which·handler·the·system·uses.·Normal·usage·is·to·add·a | 1807 | consistent·no·matter·which·handler·the·system·uses.·Normal·usage·is·to·add·a |
| 1808 | call·to·<a·href="#add_handlers/1"><code·class="inline">logger:add_handlers/1</code></a>·just·after·the·processes·that·the·handler·needs | 1808 | call·to·<a·href="#add_handlers/1"><code·class="inline">logger:add_handlers/1</code></a>·just·after·the·processes·that·the·handler·needs |
| 1809 | are·started,·and·pass·the·application's·<code·class="inline">logger</code>·configuration·as·the·argument. | 1809 | are·started,·and·pass·the·application's·<code·class="inline">logger</code>·configuration·as·the·argument. |
| 1810 | For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">behaviour</span><span·class="p"·data-group-id=" | 1810 | For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">behaviour</span><span·class="p"·data-group-id="8144290639-1">(</span><span·class="ss">application</span><span·class="p"·data-group-id="8144290639-1">)</span><span·class="p">.</span><span·class="w"> |
| 1811 | </span><span·class="nf">start</span><span·class="p"·data-group-id=" | 1811 | </span><span·class="nf">start</span><span·class="p"·data-group-id="8144290639-2">(</span><span·class="p">_</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8144290639-3">[</span><span·class="p"·data-group-id="8144290639-3">]</span><span·class="p"·data-group-id="8144290639-2">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 1812 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">supervisor</span><span·class="p">:</span><span·class="nf">start_link</span><span·class="p"·data-group-id=" | 1812 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">supervisor</span><span·class="p">:</span><span·class="nf">start_link</span><span·class="p"·data-group-id="8144290639-4">(</span><span·class="p"·data-group-id="8144290639-5">{</span><span·class="ss">local</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">my_sup</span><span·class="p"·data-group-id="8144290639-5">}</span><span·class="p">,</sp[·...·truncated·by·diffoscope;·len:·252,·SHA:·462c481191f98525171fa62665265ab3818fc17788c684eef5a3276a4fc11fc9·...·]-4">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 1813 | ········</span><span·class="p"·data-group-id=" | 1813 | ········</span><span·class="p"·data-group-id="8144290639-7">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Pid</span><span·class="p"·data-group-id="8144290639-7">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 1814 | ············</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">logger</span><span·class="p">:</span><span·class="nf">add_handlers</span><span·class="p"·data-group-id=" | 1814 | ············</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">logger</span><span·class="p">:</span><span·class="nf">add_handlers</span><span·class="p"·data-group-id="8144290639-8">(</span><span·class="ss">my_app</span><span·class="p"·data-group-id="8144290639-8">)</span><span·class="p">,</span><span·class="w"> |
| 1815 | ············</span><span·class="p"·data-group-id=" | 1815 | ············</span><span·class="p"·data-group-id="8144290639-9">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Pid</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8144290639-10">[</span><span·class="p"·data-group-id="8[·...·truncated·by·diffoscope;·len:·63,·SHA:·9e9ab5d78855469459acc34f9044400e870d6d0f2b770974dfc3a1346c66f637·...·]-9">}</span><span·class="p">;</span><span·class="w"> |
| 1816 | ········</span><span·class="n">Error</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">Error</span><span·class="w"> | 1816 | ········</span><span·class="n">Error</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">Error</span><span·class="w"> |
| 1817 | ·····</span><span·class="k">end</span><span·class="p">.</span></code></pre><p>This·reads·the·<code·class="inline">logger</code>·configuration·parameter·from·the·<code·class="inline">my_app</code>·application | 1817 | ·····</span><span·class="k">end</span><span·class="p">.</span></code></pre><p>This·reads·the·<code·class="inline">logger</code>·configuration·parameter·from·the·<code·class="inline">my_app</code>·application |
| 1818 | and·starts·the·configured·handlers.·The·contents·of·the·configuration·use·the | 1818 | and·starts·the·configured·handlers.·The·contents·of·the·configuration·use·the |
| 1819 | same·rules·as·the | 1819 | same·rules·as·the |
| 1820 | <a·href="logger_chapter.html#handler-configuration">logger·handler·configuration</a>.</p><p>If·the·handler·is·meant·to·replace·the·default·handler,·the·Kernel's·default | 1820 | <a·href="logger_chapter.html#handler-configuration">logger·handler·configuration</a>.</p><p>If·the·handler·is·meant·to·replace·the·default·handler,·the·Kernel's·default |
| 1821 | handler·have·to·be·disabled·before·the·new·handler·is·added.·A·<code·class="inline">sys.config</code>·file | 1821 | handler·have·to·be·disabled·before·the·new·handler·is·added.·A·<code·class="inline">sys.config</code>·file |
| 1822 | that·disables·the·Kernel·handler·and·adds·a·custom·handler·could·look·like·this:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 1822 | that·disables·the·Kernel·handler·and·adds·a·custom·handler·could·look·like·this:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="8493869576-1">[</span><span·class="p"·data-group-id="8493869576-2">{</span><span·class="ss">kernel</span><span·class="p">,</span><span·class="w"> |
| 1823 | ··</span><span·class="p"·data-group-id=" | 1823 | ··</span><span·class="p"·data-group-id="8493869576-3">[</span><span·class="p"·data-group-id="8493869576-4">{</span><span·class="ss">logger</span><span·class="p">,</span><span·class="w"> |
| 1824 | ····</span><span·class="c1">%%·Disable·the·default·Kernel·handler</span><span·class="w"> | 1824 | ····</span><span·class="c1">%%·Disable·the·default·Kernel·handler</span><span·class="w"> |
| 1825 | ····</span><span·class="p"·data-group-id=" | 1825 | ····</span><span·class="p"·data-group-id="8493869576-5">[</span><span·class="p"·data-group-id="8493869576-6">{</span><span·class="ss">handler</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">default</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">undefi[·...·truncated·by·diffoscope;·len:·263,·SHA:·0553cba96e9062d24842a64184df34923b9113b60164c5db5a2f9bea58aa795c·...·]-2">}</span><span·class="p">,</span><span·class="w"> |
| 1826 | ·</span><span·class="p"·data-group-id=" | 1826 | ·</span><span·class="p"·data-group-id="8493869576-7">{</span><span·class="ss">my_app</span><span·class="p">,</span><span·class="w"> |
| 1827 | ··</span><span·class="p"·data-group-id=" | 1827 | ··</span><span·class="p"·data-group-id="8493869576-8">[</span><span·class="p"·data-group-id="8493869576-9">{</span><span·class="ss">logger</span><span·class="p">,</span><span·class="w"> |
| 1828 | ····</span><span·class="c1">%%·Enable·this·handler·as·the·default</span><span·class="w"> | 1828 | ····</span><span·class="c1">%%·Enable·this·handler·as·the·default</span><span·class="w"> |
| 1829 | ····</span><span·class="p"·data-group-id=" | 1829 | ····</span><span·class="p"·data-group-id="8493869576-10">[</span><span·class="p"·data-group-id="8493869576-11">{</span><span·class="ss">handler</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">default</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">my_h[·...·truncated·by·diffoscope;·len:·478,·SHA:·809da3fb7eff1a00f63359461f9b9cd7508857ef651ff06afcc09081183930c6·...·]-1">]</span><span·class="p">.</span></code></pre> |
| 1830 | ··</section> | 1830 | ··</section> |
| 1831 | </section> | 1831 | </section> |
| 1832 | <section·class="detail"·id="add_primary_filter/2"> | 1832 | <section·class="detail"·id="add_primary_filter/2"> |
| 1833 | ··<div·class="detail-header"> | 1833 | ··<div·class="detail-header"> |
| 1834 | ····<a·href="#add_primary_filter/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 1834 | ····<a·href="#add_primary_filter/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 1835 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 1835 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 2722, 16 lines modified | Offset 2722, 16 lines modified | ||
| 2722 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·update_formatter_config(HandlerId,·FormatterConfig)·->·ok·|·{error,·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>()} | 2722 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·update_formatter_config(HandlerId,·FormatterConfig)·->·ok·|·{error,·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>()} |
| 2723 | ·································when | 2723 | ·································when |
| 2724 | ·····································HandlerId·::·<a·href="logger_handler.html#t:id/0">logger_handler:id</a>(), | 2724 | ·····································HandlerId·::·<a·href="logger_handler.html#t:id/0">logger_handler:id</a>(), |
| 2725 | ·····································FormatterConfig·::·<a·href="#t:formatter_config/0">formatter_config</a>().</pre> | 2725 | ·····································FormatterConfig·::·<a·href="#t:formatter_config/0">formatter_config</a>().</pre> |
| 2726 | ······</div> | 2726 | ······</div> |
| 2727 | <p>Update·the·formatter·configuration·for·the·specified·handler.</p><p>The·new·configuration·is·merged·with·the·existing·formatter·configuration.</p><p>To·overwrite·the·existing·configuration·without·any·merge,·use</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">set_handler_config</span><span·class="p"·data-group-id=" | 2727 | <p>Update·the·formatter·configuration·for·the·specified·handler.</p><p>The·new·configuration·is·merged·with·the·existing·formatter·configuration.</p><p>To·overwrite·the·existing·configuration·without·any·merge,·use</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">set_handler_config</span><span·class="p"·data-group-id="3979968138-1">(</span><span·class="n">HandlerId</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">formatter</span><span·class="p">,</span><span·class="w"> |
| 2728 | » ······</span><span·class="p"·data-group-id=" | 2728 | » ······</span><span·class="p"·data-group-id="3979968138-2">{</span><span·class="n">FormatterModule</span><span·class="p">,</span><span·class="w">·</span><span·class="n">FormatterConfig</span><span·class="p"·data-group-id="3979968138-2">}</span><span·class="p"·data-group-id="3979968138-1">)</span><span·class="p">.</span></code></pre> |
| 2729 | ··</section> | 2729 | ··</section> |
| 2730 | </section> | 2730 | </section> |
| 2731 | <section·class="detail"·id="update_formatter_config/3"> | 2731 | <section·class="detail"·id="update_formatter_config/3"> |
| 2732 | ··<div·class="detail-header"> | 2732 | ··<div·class="detail-header"> |
| 2733 | ····<a·href="#update_formatter_config/3"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 2733 | ····<a·href="#update_formatter_config/3"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 2734 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 2734 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 2782, 16 lines modified | Offset 2782, 16 lines modified | ||
| 2782 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·update_handler_config(HandlerId,·Config)·->·ok·|·{error,·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>()} | 2782 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·update_handler_config(HandlerId,·Config)·->·ok·|·{error,·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>()} |
| 2783 | ·······························when·HandlerId·::·<a·href="logger_handler.html#t:id/0">logger_handler:id</a>(),·Config·::·<a·href="logger_handler.html#t:config/0">logger_handler:config</a>().</pre> | 2783 | ·······························when·HandlerId·::·<a·href="logger_handler.html#t:id/0">logger_handler:id</a>(),·Config·::·<a·href="logger_handler.html#t:config/0">logger_handler:config</a>().</pre> |
| 2784 | ······</div> | 2784 | ······</div> |
| 2785 | <p>Update·configuration·data·for·the·specified·handler.·This·function·behaves·as·if | 2785 | <p>Update·configuration·data·for·the·specified·handler.·This·function·behaves·as·if |
| 2786 | it·was·implemented·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="4872432435-1">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4872432435-2">{</span><span·class="p">_</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Old</span><span·class="p"·data-group-id="4872432435-2">}</span><span·class="p"·data-group-id="4872432435-1">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">logger</span><span·class="p">:</span><span·class="nf">get_handler_config</span><span·class="p"·data-group-id="4872432435-3">(</span><span·class="n">HandlerId</span><span·class="p"·data-group-id="4872432435-3">)</span><span·class="p">,</span><span·class="w"> | ||
| 2787 | 2786 | it·was·implemented·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="5640295398-1">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="5640295398-2">{<[·...·truncated·by·diffoscope;·len:·556,·SHA:·e9a2a36e2fda16cf6081c770da4c2d80764061333977ccc6d75670d9041a7efd·...·] | |
| 2787 | </span><span·class="nc">logger</span><span·class="p">:</span><span·class="nf">set_handler_config</span><span·class="p"·data-group-id="5640295398-4">(</span><span·class="n">HandlerId</span><span·class="p">,</span><span·class="w">·</span><span·class="nc">maps</span><span·class="p">:</span><span·class="nf">merge</span><span·class="p"·data-group-id="5640295398-5">(</span><span·class="n">Old</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Config</span><span·class="p"·data-group-id="5640295398-5">)</span><span·class="p"·data-group-id="5640295398-4">)</span><span·class="p">.</span></code></pre><p>To·overwrite·the·existing·configuration·without·any·merge,·use | ||
| 2788 | <a·href="#set_handler_config/2"><code·class="inline">set_handler_config/2</code>·</a>.</p> | 2788 | <a·href="#set_handler_config/2"><code·class="inline">set_handler_config/2</code>·</a>.</p> |
| 2789 | ··</section> | 2789 | ··</section> |
| 2790 | </section> | 2790 | </section> |
| 2791 | <section·class="detail"·id="update_handler_config/3"> | 2791 | <section·class="detail"·id="update_handler_config/3"> |
| 2792 | ··<div·class="detail-header"> | 2792 | ··<div·class="detail-header"> |
| 2793 | ····<a·href="#update_handler_config/3"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 2793 | ····<a·href="#update_handler_config/3"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| Offset 2872, 16 lines modified | Offset 2872, 16 lines modified | ||
| 2872 | ······<div·class="specs"> | 2872 | ······<div·class="specs"> |
| 2873 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·update_primary_config(Config)·->·ok·|·{error,·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>()}·when·Config·::·<a·href="#t:primary_config/0">primary_config</a>().</pre> | 2873 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·update_primary_config(Config)·->·ok·|·{error,·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>()}·when·Config·::·<a·href="#t:primary_config/0">primary_config</a>().</pre> |
| 2874 | ······</div> | 2874 | ······</div> |
| 2875 | <p>Update·primary·configuration·data·for·Logger.·This·function·behaves·as·if·it·was | 2875 | <p>Update·primary·configuration·data·for·Logger.·This·function·behaves·as·if·it·was |
| 2876 | implemented·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Old</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">logger</span><span·class="p">:</span><span·class="nf">get_primary_config</span><span·class="p"·data-group-id=" | 2876 | implemented·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Old</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">logger</span><span·class="p">:</span><span·class="nf">get_primary_config</span><span·class="p"·data-group-id="2383178621-1">(</span><span·class="p"·data-group-id="2383178621-1">)</span><span·class="p">,</span><span·class="w"> |
| 2877 | </span><span·class="nc">logger</span><span·class="p">:</span><span·class="nf">set_primary_config</span><span·class="p"·data-group-id=" | 2877 | </span><span·class="nc">logger</span><span·class="p">:</span><span·class="nf">set_primary_config</span><span·class="p"·data-group-id="2383178621-2">(</span><span·class="nc">maps</span><span·class="p">:</span><span·class="nf">merge</span><span·class="p"·data-group-id="2383178621-3">(</span><span·class="n">Old</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Config</sp[·...·truncated·by·diffoscope;·len:·97,·SHA:·d173a25553386c46222df83ef2bc53b4f829738f50b0622b27d901be21d4a125·...·]-2">)</span><span·class="p">.</span></code></pre><p>To·overwrite·the·existing·configuration·without·any·merge,·use |
| 2878 | <a·href="#set_primary_config/1"><code·class="inline">set_primary_config/1</code>·</a>.</p> | 2878 | <a·href="#set_primary_config/1"><code·class="inline">set_primary_config/1</code>·</a>.</p> |
| 2879 | ··</section> | 2879 | ··</section> |
| 2880 | </section> | 2880 | </section> |
| 2881 | <section·class="detail"·id="update_process_metadata/1"> | 2881 | <section·class="detail"·id="update_process_metadata/1"> |
| 2882 | ··<div·class="detail-header"> | 2882 | ··<div·class="detail-header"> |
| 2883 | ····<a·href="#update_process_metadata/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 2883 | ····<a·href="#update_process_metadata/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
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| 2903 | ······<div·class="specs"> | 2903 | ······<div·class="specs"> |
| 2904 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·update_process_metadata(Meta)·->·ok·when·Meta·::·<a·href="#t:metadata/0">metadata</a>().</pre> | 2904 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·update_process_metadata(Meta)·->·ok·when·Meta·::·<a·href="#t:metadata/0">metadata</a>().</pre> |
| 2905 | ······</div> | 2905 | ······</div> |
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| 186 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 186 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 187 | ··</a> | 187 | ··</a> |
| 188 | ··<span·class="text">Logger·API</span> | 188 | ··<span·class="text">Logger·API</span> |
| 189 | </h2> | 189 | </h2> |
| 190 | <p>The·API·for·logging·consists·of·a·set·of·<a·href="logger.html#module-macros">macros</a>,·and·a·set | 190 | <p>The·API·for·logging·consists·of·a·set·of·<a·href="logger.html#module-macros">macros</a>,·and·a·set |
| 191 | of·functions·of·the·form·<code·class="inline">logger:Level/1,2,3</code>,·which·are·all·shortcuts·for | 191 | of·functions·of·the·form·<code·class="inline">logger:Level/1,2,3</code>,·which·are·all·shortcuts·for |
| 192 | <a·href="logger.html#log/2"><code·class="inline">logger:log(Level,Arg1[,Arg2[,Arg3]])</code></a>.</p><p>The·macros·are·defined·in·<code·class="inline">logger.hrl</code>,·which·is·included·in·a·module·with·the | 192 | <a·href="logger.html#log/2"><code·class="inline">logger:log(Level,Arg1[,Arg2[,Arg3]])</code></a>.</p><p>The·macros·are·defined·in·<code·class="inline">logger.hrl</code>,·which·is·included·in·a·module·with·the |
| 193 | directive</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id="6 | 193 | directive</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id="6117223093-1">(</span><span·class="s">"kernel/include/logger.hrl"</span><span·class="p"·data-group-id="6117223093-1">)</span><span·class="p">.</span></code></pre><p>The·difference·between·using·the·macros·and·the·exported·functions·is·that |
| 194 | macros·add·location·(originator)·information·to·the·metadata,·and·performs·lazy | 194 | macros·add·location·(originator)·information·to·the·metadata,·and·performs·lazy |
| 195 | evaluation·by·wrapping·the·logger·call·in·a·case·statement,·so·it·is·only | 195 | evaluation·by·wrapping·the·logger·call·in·a·case·statement,·so·it·is·only |
| 196 | evaluated·if·the·log·level·of·the·event·passes·the·primary·log·level·check.</p><h3·id="log-level"·class="section-heading"> | 196 | evaluated·if·the·log·level·of·the·event·passes·the·primary·log·level·check.</p><h3·id="log-level"·class="section-heading"> |
| 197 | ··<a·href="#log-level"·class="hover-link"> | 197 | ··<a·href="#log-level"·class="hover-link"> |
| 198 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 198 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 199 | ··</a> | 199 | ··</a> |
| 200 | ··<span·class="text">Log·Level</span> | 200 | ··<span·class="text">Log·Level</span> |
| Offset 208, 31 lines modified | Offset 208, 31 lines modified | ||
| 208 | ··<a·href="#log-message"·class="hover-link"> | 208 | ··<a·href="#log-message"·class="hover-link"> |
| 209 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 209 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 210 | ··</a> | 210 | ··</a> |
| 211 | ··<span·class="text">Log·Message</span> | 211 | ··<span·class="text">Log·Message</span> |
| 212 | </h3> | 212 | </h3> |
| 213 | <p>The·log·message·contains·the·information·to·be·logged.·The·message·can·consist | 213 | <p>The·log·message·contains·the·information·to·be·logged.·The·message·can·consist |
| 214 | of·a·format·string·and·arguments·(given·as·two·separate·parameters·in·the·Logger | 214 | of·a·format·string·and·arguments·(given·as·two·separate·parameters·in·the·Logger |
| 215 | API),·a·string·or·a·report.</p><p>Example,·format·string·and·arguments:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">logger</span><span·class="p">:</span><span·class="nf">error</span><span·class="p"·data-group-id=" | 215 | API),·a·string·or·a·report.</p><p>Example,·format·string·and·arguments:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">logger</span><span·class="p">:</span><span·class="nf">error</span><span·class="p"·data-group-id="3783589387-1">(</span><span·class="s">"The·file·does·not·exist:·~ts"</span><span·class="p">,</span><span·class="p"·data-group-id="3783589387-2">[</span><span·class="n">Filename</span><span·class="p"·data-group-id="3783589387-2">]</span><span·clas[·...·truncated·by·diffoscope;·len:·367,·SHA:·c78da95ed128d68e9419508ea6a72452da13ccaf1b90f8f67b4b4cfb2c6ceb62·...·]-1">)</span></code></pre><p>A·report,·which·is·either·a·map·or·a·key-value·list,·is·the·preferred·way·to·log |
| 216 | using·Logger·as·it·makes·it·possible·for·different·backends·to·filter·and·format | 216 | using·Logger·as·it·makes·it·possible·for·different·backends·to·filter·and·format |
| 217 | the·log·event·as·it·needs·to.</p><p>Example,·report:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="o">?</span><span·class="n">LOG_ERROR</span><span·class="p"·data-group-id=" | 217 | the·log·event·as·it·needs·to.</p><p>Example,·report:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="o">?</span><span·class="n">LOG_ERROR</span><span·class="p"·data-group-id="9744819439-1">(</span><span·class="p"·data-group-id="9744819439-2">#{</span><span·class="w">·</span><span·class="ss">user</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">joe</span><span·class="p">,</span><[·...·truncated·by·diffoscope;·len:·464,·SHA:·dd75c79a594db40669125b6cfbbc48d290d5e601c71a24d63a2749e9fe5c6c66·...·]-1">)</span></code></pre><p>Reports·can·be·accompanied·by·a·<em>report·callback</em>·specified·in·the·log·event's |
| 218 | <a·href="#metadata">metadata</a>.·The·report·callback·is·a·convenience | 218 | <a·href="#metadata">metadata</a>.·The·report·callback·is·a·convenience |
| 219 | function·that·the·<a·href="#formatters">formatter</a>·can·use·to·convert | 219 | function·that·the·<a·href="#formatters">formatter</a>·can·use·to·convert |
| 220 | the·report·to·a·format·string·and·arguments,·or·directly·to·a·string.·The | 220 | the·report·to·a·format·string·and·arguments,·or·directly·to·a·string.·The |
| 221 | formatter·can·also·use·its·own·conversion·function,·if·no·callback·is·provided, | 221 | formatter·can·also·use·its·own·conversion·function,·if·no·callback·is·provided, |
| 222 | or·if·a·customized·formatting·is·desired.</p><p>The·report·callback·must·be·a·fun·with·one·or·two·arguments.·If·it·takes·one | 222 | or·if·a·customized·formatting·is·desired.</p><p>The·report·callback·must·be·a·fun·with·one·or·two·arguments.·If·it·takes·one |
| 223 | argument,·this·is·the·report·itself,·and·the·fun·returns·a·format·string·and | 223 | argument,·this·is·the·report·itself,·and·the·fun·returns·a·format·string·and |
| 224 | arguments:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">fun</span><span·class="p"·data-group-id="4172020950-1">(</span><span·class="p"·data-group-id="4172020950-2">(</span><span·class="nc">logger</span><span·class="p">:</span><span·class="nf">report</span><span·class="p"·data-group-id="4172020950-3">(</span><span·class="p"·data-group-id="4172020950-3">)</span><span·class="p"·data-group-id="4172020950-2">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="p"·data-group-id="4172020950-4">{</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="4172020950-5">(</span><span·class="p"·data-group-id="4172020950-5">)</span><span·class="p">,</span><span·class="p"·data-group-id="4172020950-6">[</span><span·class="nf">term</span><span·class="p"·data-group-id="4172020950-7">(</span><span·class="p"·data-group-id="4172020950-7">)</span><span·class="p"·data-group-id="4172020950-6">]</span><span·class="p"·data-group-id="4172020950-4">}</span><span·class="p"·data-group-id="4172020950-1">)</span></code></pre><p>If·it·takes·two·arguments,·the·first·is·the·report,·and·the·second·is·a·map | ||
| 225 | 224 | arguments:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">fun</span><span·class="p"·data-group-id="0707410418-1">(</span><span·class="p"·data-group-id="0707410418-2">(</span><span·class="nc">logger</span><span·class="p">:</span><span·c[·...·truncated·by·diffoscope;·len:·958,·SHA:·2793b9184dbb33351141cf6e0246658da40a5e7357cf53b7bd2a145d8f47aefd·...·] | |
| 225 | containing·extra·data·that·allows·direct·conversion·to·a·string:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">fun</span><span·class="p"·data-group-id="7346619455-1">(</span><span·class="p"·data-group-id="7346619455-2">(</span><span·class="nc">logger</span><span·class="p">:</span><span·class="nf">report</span><span·class="p"·data-group-id="7346619455-3">(</span><span·class="p"·data-group-id="7346619455-3">)</span><span·class="p">,</span><span·class="nc">logger</span><span·class="p">:</span><span·class="nf">report_cb_config</span><span·class="p"·data-group-id="7346619455-4">(</span><span·class="p"·data-group-id="7346619455-4">)</span><span·class="p"·data-group-id="7346619455-2">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="nc">unicode</span><span·class="p">:</span><span·class="nf">chardata</span><span·class="p"·data-group-id="7346619455-5">(</span><span·class="p"·data-group-id="7346619455-5">)</span><span·class="p"·data-group-id="7346619455-1">)</span></code></pre><p>The·fun·must·obey·the·<code·class="inline">depth</code>·and·<code·class="inline">chars_limit</code>·parameters·provided·in·the | ||
| 226 | second·argument,·as·the·formatter·cannot·do·anything·useful·of·these·parameters | 226 | second·argument,·as·the·formatter·cannot·do·anything·useful·of·these·parameters |
| 227 | with·the·returned·string.·The·extra·data·also·contains·a·field·named | 227 | with·the·returned·string.·The·extra·data·also·contains·a·field·named |
| 228 | <code·class="inline">single_line</code>,·indicating·if·the·printed·log·message·may·contain·line·breaks·or | 228 | <code·class="inline">single_line</code>,·indicating·if·the·printed·log·message·may·contain·line·breaks·or |
| 229 | not.·This·variant·is·used·when·the·formatting·of·the·report·depends·on·the·size | 229 | not.·This·variant·is·used·when·the·formatting·of·the·report·depends·on·the·size |
| 230 | or·single·line·parameters.</p><p>Example,·report,·and·metadata·with·report·callback:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">logger</span><span·class="p">:</span><span·class="nf">debug</span><span·class="p"·data-group-id=" | 230 | or·single·line·parameters.</p><p>Example,·report,·and·metadata·with·report·callback:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">logger</span><span·class="p">:</span><span·class="nf">debug</span><span·class="p"·data-group-id="0141882995-1">(</span><span·class="p"·data-group-id="0141882995-2">#{</span><span·class="ss">got</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">connection_request</span><span·class="p">,</span><span·class[·...·truncated·by·diffoscope;·len:·362,·SHA:·cec8e8f23eca344a62c7b9cc8af48e743d9d73dbf4e0a2b81ad434f0d147bc3b·...·]-2">}</span><span·class="p">,</span><span·class="w"> |
| 231 | ·············</span><span·class="p"·data-group-id=" | 231 | ·············</span><span·class="p"·data-group-id="0141882995-3">#{</span><span·class="ss">report_cb</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id="0141882995-4">(</span><span·class="n">R</span><span·class="p"·data[·...·truncated·by·diffoscope;·len:·597,·SHA:·85034a318ee8dcb83c55609a37a07c35eb27fab7b17e5dab0637fbb0b39017af·...·]-1">)</span></code></pre><p>The·log·message·can·also·be·provided·through·a·fun·for·lazy·evaluation.·The·fun |
| 232 | is·only·evaluated·if·the·primary·log·level·check·passes,·and·is·therefore | 232 | is·only·evaluated·if·the·primary·log·level·check·passes,·and·is·therefore |
| 233 | recommended·if·it·is·expensive·to·generate·the·message.·The·lazy·fun·must·return | 233 | recommended·if·it·is·expensive·to·generate·the·message.·The·lazy·fun·must·return |
| 234 | a·string,·a·report,·or·a·tuple·with·format·string·and·arguments.</p><h3·id="metadata"·class="section-heading"> | 234 | a·string,·a·report,·or·a·tuple·with·format·string·and·arguments.</p><h3·id="metadata"·class="section-heading"> |
| 235 | ··<a·href="#metadata"·class="hover-link"> | 235 | ··<a·href="#metadata"·class="hover-link"> |
| 236 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 236 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 237 | ··</a> | 237 | ··</a> |
| 238 | ··<span·class="text">Metadata</span> | 238 | ··<span·class="text">Metadata</span> |
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| 411 | with·<a·href="#logger_level"><code·class="inline">logger_level</code></a>,·and·the·compatibility | 411 | with·<a·href="#logger_level"><code·class="inline">logger_level</code></a>,·and·the·compatibility |
| 412 | with·<a·href="../../../../lib/sasl-4.3/doc/html/error_logging.html">SASL·Error·Logging</a>,·which·is·specified·with | 412 | with·<a·href="../../../../lib/sasl-4.3/doc/html/error_logging.html">SASL·Error·Logging</a>,·which·is·specified·with |
| 413 | <a·href="#logger_sasl_compatible"><code·class="inline">logger_sasl_compatible</code></a>.</p><p>With·this·parameter,·you·can·modify·or·disable·the·default·handler,·add·custom | 413 | <a·href="#logger_sasl_compatible"><code·class="inline">logger_sasl_compatible</code></a>.</p><p>With·this·parameter,·you·can·modify·or·disable·the·default·handler,·add·custom |
| 414 | handlers·and·primary·logger·filters,·set·log·levels·per·module,·and·modify·the | 414 | handlers·and·primary·logger·filters,·set·log·levels·per·module,·and·modify·the |
| 415 | <a·href="#logger-proxy">proxy</a>·configuration.</p><p><code·class="inline">Config</code>·is·any·(zero·or·more)·of·the·following:</p><ul><li><p><strong><code·class="inline">{handler,·default,·undefined}</code></strong>·-·Disables·the·default·handler.·This | 415 | <a·href="#logger-proxy">proxy</a>·configuration.</p><p><code·class="inline">Config</code>·is·any·(zero·or·more)·of·the·following:</p><ul><li><p><strong><code·class="inline">{handler,·default,·undefined}</code></strong>·-·Disables·the·default·handler.·This |
| 416 | allows·another·application·to·add·its·own·default·handler.</p><p>Only·one·entry·of·this·type·is·allowed.</p></li><li><p><strong><code·class="inline">{handler,·HandlerId,·Module,·HandlerConfig}</code></strong>·-·If·<code·class="inline">HandlerId</code>·is | 416 | allows·another·application·to·add·its·own·default·handler.</p><p>Only·one·entry·of·this·type·is·allowed.</p></li><li><p><strong><code·class="inline">{handler,·HandlerId,·Module,·HandlerConfig}</code></strong>·-·If·<code·class="inline">HandlerId</code>·is |
| 417 | <code·class="inline">default</code>,·then·this·entry·modifies·the·default·handler,·equivalent·to | 417 | <code·class="inline">default</code>,·then·this·entry·modifies·the·default·handler,·equivalent·to |
| 418 | calling</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">logger</span><span·class="p">:</span><span·class="nf">remove_handler</span><span·class="p"·data-group-id=" | 418 | calling</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">logger</span><span·class="p">:</span><span·class="nf">remove_handler</span><span·class="p"·data-group-id="5919360388-1">(</span><span·class="ss">default</span><span·class="p"·data-group-id="5919360388-1">)</span></code></pre><p>followed·by</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">logger</span><span·class="p">:</span><span·class="nf">[·...·truncated·by·diffoscope;·len:·304,·SHA:·48a5b312c21262c93d72547e92d10acf75a741d0b416c54d6a9d76d4575386f5·...·]-1">)</span></code></pre><p>For·all·other·values·of·<code·class="inline">HandlerId</code>,·this·entry·adds·a·new·handler, |
| 419 | equivalent·to·calling</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">logger</span><span·class="p">:</span><span·class="nf">add_handler</span><span·class="p"·data-group-id=" | 419 | equivalent·to·calling</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">logger</span><span·class="p">:</span><span·class="nf">add_handler</span><span·class="p"·data-group-id="4698827687-1">(</span><span·class="n">HandlerId</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Module</span><span·class="p">,</span><span·class="w">·</span><span·class="n">HandlerConfig</span><span·class="p"·data-group-id="4698827687-1">)</span></code></pre><p>Multiple·entries·of·this·type·are·allowed.</p></li><li><p><strong><code·class="inline">{filters,·FilterDefault,·[Filter]}</code></strong>·-·Adds·the·specified·primary |
| 420 | filters.</p><ul><li><p><code·class="inline">FilterDefault·=·log·|·stop</code></p></li><li><code·class="inline">Filter·=·{FilterId,·{FilterFun,·FilterConfig}}</code></li></ul><p>Equivalent·to·calling</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">logger</span><span·class="p">:</span><span·class="nf">add_primary_filter</span><span·class="p"·data-group-id=" | 420 | filters.</p><ul><li><p><code·class="inline">FilterDefault·=·log·|·stop</code></p></li><li><code·class="inline">Filter·=·{FilterId,·{FilterFun,·FilterConfig}}</code></li></ul><p>Equivalent·to·calling</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">logger</span><span·class="p">:</span><span·class="nf">add_primary_filter</span><span·class="p"·data-group-id="5194696675-1">(</span><span·class="n">FilterId</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="5194696675-2">{</span><span·class="n">FilterFun</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Filter[·...·truncated·by·diffoscope;·len:·107,·SHA:·5d89adecafd86e863d7231d5506a5f18685ddaa044142259cb76c589b212920c·...·]-1">)</span></code></pre><p>for·each·<code·class="inline">Filter</code>.</p><p><code·class="inline">FilterDefault</code>·specifies·the·behaviour·if·all·primary·filters·return |
| 421 | <code·class="inline">ignore</code>,·see·section·<a·href="#filters">Filters</a>.</p><p>Only·one·entry·of·this·type·is·allowed.</p></li><li><p><strong><code·class="inline">{module_level,·Level,·[Module]}</code></strong>·-·Sets·module·log·level·for·the·given | 421 | <code·class="inline">ignore</code>,·see·section·<a·href="#filters">Filters</a>.</p><p>Only·one·entry·of·this·type·is·allowed.</p></li><li><p><strong><code·class="inline">{module_level,·Level,·[Module]}</code></strong>·-·Sets·module·log·level·for·the·given |
| 422 | modules.·Equivalent·to·calling</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">logger</span><span·class="p">:</span><span·class="nf">set_module_level</span><span·class="p"·data-group-id=" | 422 | modules.·Equivalent·to·calling</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">logger</span><span·class="p">:</span><span·class="nf">set_module_level</span><span·class="p"·data-group-id="1020444781-1">(</span><span·class="n">Module</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Level</span><span·class="p"·data-group-id="1020444781-1">)</span></code></pre><p>for·each·<code·class="inline">Module</code>.</p><p>Multiple·entries·of·this·type·are·allowed.</p></li><li><p><strong><code·class="inline">{proxy,·ProxyConfig}</code></strong>·-·Sets·the·proxy·configuration,·equivalent·to |
| 423 | calling</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">logger</span><span·class="p">:</span><span·class="nf">set_proxy_config</span><span·class="p"·data-group-id=" | 423 | calling</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">logger</span><span·class="p">:</span><span·class="nf">set_proxy_config</span><span·class="p"·data-group-id="8457059212-1">(</span><span·class="n">ProxyConfig</span><span·class="p"·data-group-id="8457059212-1">)</span></code></pre><p>Only·one·entry·of·this·type·is·allowed.</p></li></ul><p>See·section·<a·href="#configuration-examples">Configuration·Examples</a>·for |
| 424 | examples·using·the·<code·class="inline">logger</code>·parameter·for·system·configuration.</p></li><li><p><strong><code·class="inline"·id="logger_metadata">logger_metadata·=·map()</code></strong>·-·Specifies·the·primary | 424 | examples·using·the·<code·class="inline">logger</code>·parameter·for·system·configuration.</p></li><li><p><strong><code·class="inline"·id="logger_metadata">logger_metadata·=·map()</code></strong>·-·Specifies·the·primary |
| 425 | metadata.·See·the·<a·href="kernel_app.html#logger_metadata"><code·class="inline">kernel(6)</code></a>·manual·page·for | 425 | metadata.·See·the·<a·href="kernel_app.html#logger_metadata"><code·class="inline">kernel(6)</code></a>·manual·page·for |
| 426 | more·information·about·this·parameter.</p></li><li><p><strong><code·class="inline"·id="logger_level">logger_level·=·Level</code></strong>·-·Specifies·the·primary·log | 426 | more·information·about·this·parameter.</p></li><li><p><strong><code·class="inline"·id="logger_level">logger_level·=·Level</code></strong>·-·Specifies·the·primary·log |
| 427 | level.·See·the·<a·href="kernel_app.html#logger_level"><code·class="inline">kernel(6)</code></a>·manual·page·for·more | 427 | level.·See·the·<a·href="kernel_app.html#logger_level"><code·class="inline">kernel(6)</code></a>·manual·page·for·more |
| 428 | information·about·this·parameter.</p></li><li><p><strong><code·class="inline"·id="logger_sasl_compatible">logger_sasl_compatible·=·true·|·false</code></strong>·- | 428 | information·about·this·parameter.</p></li><li><p><strong><code·class="inline"·id="logger_sasl_compatible">logger_sasl_compatible·=·true·|·false</code></strong>·- |
| 429 | Specifies·Logger's·compatibility·with | 429 | Specifies·Logger's·compatibility·with |
| 430 | <a·href="../../../../lib/sasl-4.3/doc/html/error_logging.html">SASL·Error·Logging</a>.·See·the | 430 | <a·href="../../../../lib/sasl-4.3/doc/html/error_logging.html">SASL·Error·Logging</a>.·See·the |
| Offset 437, 39 lines modified | Offset 437, 39 lines modified | ||
| 437 | </h3> | 437 | </h3> |
| 438 | <p>The·value·of·the·Kernel·configuration·parameter·<code·class="inline">logger</code>·is·a·list·of·tuples.·It | 438 | <p>The·value·of·the·Kernel·configuration·parameter·<code·class="inline">logger</code>·is·a·list·of·tuples.·It |
| 439 | is·possible·to·write·the·term·on·the·command·line·when·starting·an·erlang·node, | 439 | is·possible·to·write·the·term·on·the·command·line·when·starting·an·erlang·node, |
| 440 | but·as·the·term·grows,·a·better·approach·is·to·use·the·system·configuration | 440 | but·as·the·term·grows,·a·better·approach·is·to·use·the·system·configuration |
| 441 | file.·See·the·<a·href="config.html"><code·class="inline">config(4)</code></a>·manual·page·for·more·information·about | 441 | file.·See·the·<a·href="config.html"><code·class="inline">config(4)</code></a>·manual·page·for·more·information·about |
| 442 | this·file.</p><p>Each·of·the·following·examples·shows·a·simple·system·configuration·file·that | 442 | this·file.</p><p>Each·of·the·following·examples·shows·a·simple·system·configuration·file·that |
| 443 | configures·Logger·according·to·the·description.</p><p>Modify·the·default·handler·to·print·to·a·file·instead·of | 443 | configures·Logger·according·to·the·description.</p><p>Modify·the·default·handler·to·print·to·a·file·instead·of |
| 444 | <a·href="../../../../lib/stdlib-7.0/doc/html/io.html#t:standard_io/0"><code·class="inline">standard_io</code></a>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 444 | <a·href="../../../../lib/stdlib-7.0/doc/html/io.html#t:standard_io/0"><code·class="inline">standard_io</code></a>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="6850607599-1">[</span><span·class="p"·data-group-id="6850607599-2">{</span><span·class="ss">kernel</span><span·class="p">,</span><span·class="w"> |
| 445 | ··</span><span·class="p"·data-group-id=" | 445 | ··</span><span·class="p"·data-group-id="6850607599-3">[</span><span·class="p"·data-group-id="6850607599-4">{</span><span·class="ss">logger</span><span·class="p">,</span><span·class="w"> |
| 446 | ····</span><span·class="p"·data-group-id=" | 446 | ····</span><span·class="p"·data-group-id="6850607599-5">[</span><span·class="p"·data-group-id="6850607599-6">{</span><span·class="ss">handler</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">default</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">logger_std_h</span><span·class="p">,</span><span·class="w">··</span><span·class="c1">%·{handler,·HandlerId,·Module,</span><span·class="w"> |
| 447 | ······</span><span·class="p"·data-group-id="3695261510-7">#{</span><span·class="ss">config</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="3695261510-8">#{</span><span·class="ss">file</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"log/erlang.log"</span><span·class="p"·data-group-id="3695261510-8">}</span><span·class="p"·data-group-id="3695261510-7">}</span><span·class="p"·data-group-id="3695261510-6">}</span><span·class="w">··</span><span·class="c1">%·Config}</span><span·class="w"> | ||
| 448 | ····</span><span·class="p"·data-group-id=" | 447 | ······</span><span·class="p"·data-group-id="6850607599-7">#{</span><span·class="ss">config</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="6850607599-8">#{</span><span·class="ss">file</span><span[·...·truncated·by·diffoscope;·len:·330,·SHA:·17f2b63dbfbb442af8130f46d6b12dc99ad7d651e8791d7eae7cc57e8f4b4bb8·...·]</span><span·class="w"> |
| 448 | ····</span><span·class="p"·data-group-id="6850607599-5">]</span><span·class="p"·data-group-id="6850607599-4">}</span><span·class="p"·data-group-id="6850607599-3">]</span><span·class="p"·data-group-id="6850607599-2">}</span><span·class="p"·data-group-id="6850607599-1">]</span><span·class="p">.</span></code></pre><p>Modify·the·default·handler·to·print·each·log·event·as·a·single·line:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="9026127283-1">[</span><span·class="p"·data-group-id="9026127283-2">{</span><span·class="ss">kernel</span><span·class="p">,</span><span·class="w"> | ||
| 449 | ··</span><span·class="p"·data-group-id="9 | 449 | ··</span><span·class="p"·data-group-id="9026127283-3">[</span><span·class="p"·data-group-id="9026127283-4">{</span><span·class="ss">logger</span><span·class="p">,</span><span·class="w"> |
| 450 | ····</span><span·class="p"·data-group-id="9 | 450 | ····</span><span·class="p"·data-group-id="9026127283-5">[</span><span·class="p"·data-group-id="9026127283-6">{</span><span·class="ss">handler</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">default</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">logger_std_h</span><span·class="p">,</span><span·class="w"> |
| 451 | ······</span><span·class="p"·data-group-id="9 | 451 | ······</span><span·class="p"·data-group-id="9026127283-7">#{</span><span·class="ss">formatter</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="9026127283-8">{</span><span·class="ss">logger_formatter</span><span·class="p">,</span><span·cl[·...·truncated·by·diffoscope;·len:·409,·SHA:·b1f6c4f9cf10c72e14561e02f4e9a84c4b68a68501c8dce5e67e4631b1780ba5·...·]-6">}</span><span·class="w"> |
| 452 | ····</span><span·class="p"·data-group-id="9 | 452 | ····</span><span·class="p"·data-group-id="9026127283-5">]</span><span·class="p"·data-group-id="9026127283-4">}</span><span·class="p"·data-group-id="9026127283-3">]</span><span·class="p"·data-group-id="9026127283-2">}</span><span·class="p"·data-group-id="9026127283-1">]</span><span·class="p">.</span></code></pre><p>Modify·the·default·handler·to·print·the·pid·of·the·logging·process·for·each·log |
| 453 | event:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 453 | event:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="8876063693-1">[</span><span·class="p"·data-group-id="8876063693-2">{</span><span·class="ss">kernel</span><span·class="p">,</span><span·class="w"> |
| 454 | ··</span><span·class="p"·data-group-id=" | 454 | ··</span><span·class="p"·data-group-id="8876063693-3">[</span><span·class="p"·data-group-id="8876063693-4">{</span><span·class="ss">logger</span><span·class="p">,</span><span·class="w"> |
| 455 | ····</span><span·class="p"·data-group-id=" | 455 | ····</span><span·class="p"·data-group-id="8876063693-5">[</span><span·class="p"·data-group-id="8876063693-6">{</span><span·class="ss">handler</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">default</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">logger_std_h</span><span·class="p">,</span><span·class="w"> |
| 456 | ······</span><span·class="p"·data-group-id=" | 456 | ······</span><span·class="p"·data-group-id="8876063693-7">#{</span><span·class="ss">formatter</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="8876063693-8">{</span><span·class="ss">logger_formatter</span><span·class="p">,</span><span·class="w"> |
| 457 | ························</span><span·class="p"·data-group-id=" | 457 | ························</span><span·class="p"·data-group-id="8876063693-9">#{</span><span·class="ss">template</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="8876063693-10">[</span><span·class="ss">time</span><span·class="p">,</span><span·class="s">&qu[·...·truncated·by·diffoscope;·len:·494,·SHA:·7ede3ce453bfc4c7331e8daefdea42ff7bb8f468a4d243ac38094dff6f4cadb4·...·]-6">}</span><span·class="w"> |
| 458 | ····</span><span·class="p"·data-group-id=" | 458 | ····</span><span·class="p"·data-group-id="8876063693-5">]</span><span·class="p"·data-group-id="8876063693-4">}</span><span·class="p"·data-group-id="8876063693-3">]</span><span·class="p"·data-group-id="8876063693-2">}</span><span·class="p"·data-group-id="8876063693-1">]</span><span·class="p">.</span></code></pre><p>Modify·the·default·handler·to·only·print·errors·and·more·severe·log·events·to |
| 459 | "log/erlang.log",·and·add·another·handler·to·print·all·log·events·to | 459 | "log/erlang.log",·and·add·another·handler·to·print·all·log·events·to |
| 460 | "log/debug.log".</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 460 | "log/debug.log".</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="5388561229-1">[</span><span·class="p"·data-group-id="5388561229-2">{</span><span·class="ss">kernel</span><span·class="p">,</span><span·class="w"> |
| 461 | ··</span><span·class="p"·data-group-id=" | 461 | ··</span><span·class="p"·data-group-id="5388561229-3">[</span><span·class="p"·data-group-id="5388561229-4">{</span><span·class="ss">logger</span><span·class="p">,</span><span·class="w"> |
| 462 | ····</span><span·class="p"·data-group-id=" | 462 | ····</span><span·class="p"·data-group-id="5388561229-5">[</span><span·class="p"·data-group-id="5388561229-6">{</span><span·class="ss">handler</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">default</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">logger_std_h</span><span·class="p">,</span><span·class="w"> |
| 463 | ······</span><span·class="p"·data-group-id=" | 463 | ······</span><span·class="p"·data-group-id="5388561229-7">#{</span><span·class="ss">level</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">error</span><span·class="p">,</span><span·class="w"> |
| 464 | ········</span><span·class="ss">config</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id=" | 464 | ········</span><span·class="ss">config</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="5388561229-8">#{</span><span·class="ss">file</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"log/erlang.log"</span><span·class="p"·data-group-id="5388561229-8">}</span><span·class="p"·data-group-[·...·truncated·by·diffoscope;·len:·67,·SHA:·227c45cd97290f2f8dd6f863ef080b04c32ef0d1de8a356e44a2eeafff96da14·...·]-6">}</span><span·class="p">,</span><span·class="w"> |
| 465 | ·····</span><span·class="p"·data-group-id=" | 465 | ·····</span><span·class="p"·data-group-id="5388561229-9">{</span><span·class="ss">handler</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">info</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">logger_std_h</span><span·class="p">,</span><span·class="w"> |
| 466 | ······</span><span·class="p"·data-group-id=" | 466 | ······</span><span·class="p"·data-group-id="5388561229-10">#{</span><span·class="ss">level</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">debug</span><span·class="p">,</span><span·class="w"> |
| 467 | ········</span><span·class="ss">config</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id=" | 467 | ········</span><span·class="ss">config</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="5388561229-11">#{</span><span·class="ss">file</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"log/debug.log"</span><span·class="p"·data-group-id="5388561229-11">}</span><span·class="p"·data-group[·...·truncated·by·diffoscope;·len:·69,·SHA:·5cb6a7c1bfa281fe7f71e3d01a4fadde59dd8dcfa01535b72095ab25a5eeec81·...·]-9">}</span><span·class="w"> |
| 468 | ····</span><span·class="p"·data-group-id=" | 468 | ····</span><span·class="p"·data-group-id="5388561229-5">]</span><span·class="p"·data-group-id="5388561229-4">}</span><span·class="p"·data-group-id="5388561229-3">]</span><span·class="p"·data-group-id="5388561229-2">}</span><span·class="p"·data-group-id="5388561229-1">]</span><span·class="p">.</span></code></pre><h2·id="backwards-compatibility-with-error_logger"·class="section-heading"> |
| 469 | ··<a·href="#backwards-compatibility-with-error_logger"·class="hover-link"> | 469 | ··<a·href="#backwards-compatibility-with-error_logger"·class="hover-link"> |
| 470 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 470 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 471 | ··</a> | 471 | ··</a> |
| 472 | ··<span·class="text">Backwards·Compatibility·with·error_logger</span> | 472 | ··<span·class="text">Backwards·Compatibility·with·error_logger</span> |
| 473 | </h2> | 473 | </h2> |
| 474 | <p>Logger·provides·backwards·compatibility·with·<code·class="inline">error_logger</code>·in·the·following | 474 | <p>Logger·provides·backwards·compatibility·with·<code·class="inline">error_logger</code>·in·the·following |
| 475 | ways:</p><ul><li><p><strong>API·for·Logging</strong>·-·The·<code·class="inline">error_logger</code>·API·still·exists,·but·should·only·be | 475 | ways:</p><ul><li><p><strong>API·for·Logging</strong>·-·The·<code·class="inline">error_logger</code>·API·still·exists,·but·should·only·be |
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| 503 | <a·href="../../../../lib/sasl-4.3/doc/html/sasl_app.html#deprecated_error_logger_config">SASL·configuration·parameters</a> | 503 | <a·href="../../../../lib/sasl-4.3/doc/html/sasl_app.html#deprecated_error_logger_config">SASL·configuration·parameters</a> |
| 504 | can·then·be·used·as·before,·and·the·SASL·reports·will·only·be·printed·if·the | 504 | can·then·be·used·as·before,·and·the·SASL·reports·will·only·be·printed·if·the |
| 505 | SASL·application·is·running,·through·a·second·log·handler·named·<code·class="inline">sasl</code>.</p><p>All·SASL·reports·have·a·metadata·field·<code·class="inline">domain</code>·which·is·set·to·<code·class="inline">[otp,sasl]</code>. | 505 | SASL·application·is·running,·through·a·second·log·handler·named·<code·class="inline">sasl</code>.</p><p>All·SASL·reports·have·a·metadata·field·<code·class="inline">domain</code>·which·is·set·to·<code·class="inline">[otp,sasl]</code>. |
| 506 | This·field·can·be·used·by·filters·to·stop·or·allow·the·log·events.</p><p>See·section·<a·href="../../../../lib/sasl-4.3/doc/html/error_logging.html">SASL·User's·Guide</a>·for·more | 506 | This·field·can·be·used·by·filters·to·stop·or·allow·the·log·events.</p><p>See·section·<a·href="../../../../lib/sasl-4.3/doc/html/error_logging.html">SASL·User's·Guide</a>·for·more |
| 507 | information·about·the·old·SASL·error·logging·functionality.</p></li><li><p><strong><a·href=""·id="legacy_event_handlers"></a>·Legacy·Event·Handlers</strong>·-·To·use·event | 507 | information·about·the·old·SASL·error·logging·functionality.</p></li><li><p><strong><a·href=""·id="legacy_event_handlers"></a>·Legacy·Event·Handlers</strong>·-·To·use·event |
| 508 | handlers·written·for·<code·class="inline">error_logger</code>,·just·add·your·event·handler | 508 | handlers·written·for·<code·class="inline">error_logger</code>,·just·add·your·event·handler |
| 509 | with</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">error_logger</span><span·class="p">:</span><span·class="ss">add_report_handler</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">2</span><span·class="p">.</span></code></pre><p>This·automatically·starts·the·error·logger·event·manager,·and·adds | 509 | with</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">error_logger</span><span·class="p">:</span><span·class="ss">add_report_handler</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">2</span><span·class="p">.</span></code></pre><p>This·automatically·starts·the·error·logger·event·manager,·and·adds |
| 510 | <code·class="inline">error_logger</code>·as·a·handler·to·Logger,·with·the·following·configuration:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 510 | <code·class="inline">error_logger</code>·as·a·handler·to·Logger,·with·the·following·configuration:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="5242841386-1">#{</span><span·class="ss">level</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">info</span><span·class="p">,</span><span·class="w"> |
| 511 | ··</span><span·class="ss">filter_default</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">log</span><span·class="p">,</span><span·class="w"> | 511 | ··</span><span·class="ss">filter_default</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">log</span><span·class="p">,</span><span·class="w"> |
| 512 | ··</span><span·class="ss">filters</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id=" | 512 | ··</span><span·class="ss">filters</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="5242841386-2">[</span><span·class="p"·data-group-id="5242841386-2">]</span><span·class="p"·data-group-id="5242841386-1">}</span><span·class="p">.</span></code></pre><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>This·handler·ignores·events·that·do·not·originate·from·the·<code·class="inline">error_logger</code> |
| 513 | API,·or·from·within·OTP.·This·means·that·if·your·code·uses·the·Logger·API | 513 | API,·or·from·within·OTP.·This·means·that·if·your·code·uses·the·Logger·API |
| 514 | for·logging,·then·your·log·events·will·be·discarded·by·this·handler.</p><p>The·handler·is·not·overload·protected.</p></section></li></ul><h2·id="error-handling"·class="section-heading"> | 514 | for·logging,·then·your·log·events·will·be·discarded·by·this·handler.</p><p>The·handler·is·not·overload·protected.</p></section></li></ul><h2·id="error-handling"·class="section-heading"> |
| 515 | ··<a·href="#error-handling"·class="hover-link"> | 515 | ··<a·href="#error-handling"·class="hover-link"> |
| 516 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 516 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 517 | ··</a> | 517 | ··</a> |
| 518 | ··<span·class="text">Error·Handling</span> | 518 | ··<span·class="text">Error·Handling</span> |
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| 140 | </h2> | 140 | </h2> |
| 141 | <h3·id="print-the-primary-logger-configurations"·class="section-heading"> | 141 | <h3·id="print-the-primary-logger-configurations"·class="section-heading"> |
| 142 | ··<a·href="#print-the-primary-logger-configurations"·class="hover-link"> | 142 | ··<a·href="#print-the-primary-logger-configurations"·class="hover-link"> |
| 143 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 143 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 144 | ··</a> | 144 | ··</a> |
| 145 | ··<span·class="text">Print·the·primary·Logger·configurations.</span> | 145 | ··<span·class="text">Print·the·primary·Logger·configurations.</span> |
| 146 | </h3> | 146 | </h3> |
| 147 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">logger</span><span·class="p">:</span><span·class="nf">i</span><span·class="p"·data-group-id=" | 147 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">logger</span><span·class="p">:</span><span·class="nf">i</span><span·class="p"·data-group-id="8617168107-1">(</span><span·class="ss">primary</span><span·class="p"·data-group-id="8617168107-1">)</span><span·class="p">.</span><span·class="w"> |
| 148 | </span><span·class="n">Primary</span><span·class="w">·</span><span·class="nc">configuration</span><span·class="p">:</span><span·class="w"> | 148 | </span><span·class="n">Primary</span><span·class="w">·</span><span·class="nc">configuration</span><span·class="p">:</span><span·class="w"> |
| 149 | ····</span><span·class="n">Level</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">notice</span><span·class="w"> | 149 | ····</span><span·class="n">Level</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">notice</span><span·class="w"> |
| 150 | ····</span><span·class="n">Filter</span><span·class="w">·</span><span·class="n">Default</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">log</span><span·class="w"> | 150 | ····</span><span·class="n">Filter</span><span·class="w">·</span><span·class="n">Default</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">log</span><span·class="w"> |
| 151 | ····</span><span·class="n">Filters</span><span·class="p">:</span><span·class="w"> | 151 | ····</span><span·class="n">Filters</span><span·class="p">:</span><span·class="w"> |
| 152 | ········</span><span·class="p"·data-group-id=" | 152 | ········</span><span·class="p"·data-group-id="8617168107-2">(</span><span·class="ss">none</span><span·class="p"·data-group-id="8617168107-2">)</span></code></pre><p>It·is·also·possible·to·fetch·the·configuration·using |
| 153 | <a·href="logger.html#get_primary_config/0"><code·class="inline">logger:get_primary_config()</code></a>.</p><h4>See·also</h4><ul><li><a·href="logger.html#i/0">logger:i()</a></li><li><a·href="logger_chapter.html#configuration">Configuration</a>·in·the·Logging·User's·Guide</li></ul><h3·id="print-the-configuration-of-all-handlers"·class="section-heading"> | 153 | <a·href="logger.html#get_primary_config/0"><code·class="inline">logger:get_primary_config()</code></a>.</p><h4>See·also</h4><ul><li><a·href="logger.html#i/0">logger:i()</a></li><li><a·href="logger_chapter.html#configuration">Configuration</a>·in·the·Logging·User's·Guide</li></ul><h3·id="print-the-configuration-of-all-handlers"·class="section-heading"> |
| 154 | ··<a·href="#print-the-configuration-of-all-handlers"·class="hover-link"> | 154 | ··<a·href="#print-the-configuration-of-all-handlers"·class="hover-link"> |
| 155 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 155 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 156 | ··</a> | 156 | ··</a> |
| 157 | ··<span·class="text">Print·the·configuration·of·all·handlers.</span> | 157 | ··<span·class="text">Print·the·configuration·of·all·handlers.</span> |
| 158 | </h3> | 158 | </h3> |
| 159 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">2>·</span><span·class="nc">logger</span><span·class="p">:</span><span·class="nf">i</span><span·class="p"·data-group-id=" | 159 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">2>·</span><span·class="nc">logger</span><span·class="p">:</span><span·class="nf">i</span><span·class="p"·data-group-id="1992298580-1">(</span><span·class="ss">handlers</span><span·class="p"·data-group-id="1992298580-1">)</span><span·class="p">.</span><span·class="w"> |
| 160 | </span><span·class="n">Handler</span><span·class="w">·</span><span·class="nc">configuration</span><span·class="p">:</span><span·class="w"> | 160 | </span><span·class="n">Handler</span><span·class="w">·</span><span·class="nc">configuration</span><span·class="p">:</span><span·class="w"> |
| 161 | ····</span><span·class="n">Id</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">default</span><span·class="w"> | 161 | ····</span><span·class="n">Id</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">default</span><span·class="w"> |
| 162 | ········</span><span·class="n">Module</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">logger_std_h</span><span·class="w"> | 162 | ········</span><span·class="n">Module</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">logger_std_h</span><span·class="w"> |
| 163 | ········</span><span·class="n">Level</span><span·class="p">:</span><span·class="w">··</span><span·class="ss">all</span><span·class="w"> | 163 | ········</span><span·class="n">Level</span><span·class="p">:</span><span·class="w">··</span><span·class="ss">all</span><span·class="w"> |
| 164 | ········</span><span·class="n">Formatter</span><span·class="p">:</span><span·class="w"> | 164 | ········</span><span·class="n">Formatter</span><span·class="p">:</span><span·class="w"> |
| 165 | ············</span><span·class="n">Module</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">logger_formatter</span><span·class="w"> | 165 | ············</span><span·class="n">Module</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">logger_formatter</span><span·class="w"> |
| 166 | ············</span><span·class="n">Config</span><span·class="p">:</span><span·class="w"> | 166 | ············</span><span·class="n">Config</span><span·class="p">:</span><span·class="w"> |
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| 169 | ········</span><span·class="n">Filter</span><span·class="w">·</span><span·class="n">Default</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">stop</span><span·class="w"> | 169 | ········</span><span·class="n">Filter</span><span·class="w">·</span><span·class="n">Default</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">stop</span><span·class="w"> |
| 170 | ········</span><span·class="n">Filters</span><span·class="p">:</span><span·class="w"> | 170 | ········</span><span·class="n">Filters</span><span·class="p">:</span><span·class="w"> |
| 171 | ············</span><span·class="n">Id</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">remote_gl</span><span·class="w"> | 171 | ············</span><span·class="n">Id</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">remote_gl</span><span·class="w"> |
| 172 | ················</span><span·class="n">Fun</span><span·class="p">:</span><span·class="w">·</span><span·class="k">fun</span><span·class="w">·</span><span·class="nc">logger_filters</span><span·class="p">:</span><span·class="ss">remote_gl</span><span·class="p">/</span><span·class="mi">2</span><span·class="w"> | 172 | ················</span><span·class="n">Fun</span><span·class="p">:</span><span·class="w">·</span><span·class="k">fun</span><span·class="w">·</span><span·class="nc">logger_filters</span><span·class="p">:</span><span·class="ss">remote_gl</span><span·class="p">/</span><span·class="mi">2</span><span·class="w"> |
| 173 | ················</span><span·class="n">Arg</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">stop</span><span·class="w"> | 173 | ················</span><span·class="n">Arg</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">stop</span><span·class="w"> |
| 174 | ············</span><span·class="n">Id</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">domain</span><span·class="w"> | 174 | ············</span><span·class="n">Id</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">domain</span><span·class="w"> |
| 175 | ················</span><span·class="n">Fun</span><span·class="p">:</span><span·class="w">·</span><span·class="k">fun</span><span·class="w">·</span><span·class="nc">logger_filters</span><span·class="p">:</span><span·class="ss">domain</span><span·class="p">/</span><span·class="mi">2</span><span·class="w"> | 175 | ················</span><span·class="n">Fun</span><span·class="p">:</span><span·class="w">·</span><span·class="k">fun</span><span·class="w">·</span><span·class="nc">logger_filters</span><span·class="p">:</span><span·class="ss">domain</span><span·class="p">/</span><span·class="mi">2</span><span·class="w"> |
| 176 | ················</span><span·class="n">Arg</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id=" | 176 | ················</span><span·class="n">Arg</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id="1992298580-2">{</span><span·class="ss">log</span><span·class="p">,</span><span·class="ss">super</span><span·class="p">,</span><span·class="p"·data-group-id="1992298580-3">[</span><span·class="ss">otp</span><span·class="p">,</span><span·class="ss">sasl</spa[·...·truncated·by·diffoscope;·len:·96,·SHA:·73e7e56fdefa6fd1c221cbbc5dff7869be1712be53bc5d77e09476f10700f1ce·...·]-2">}</span><span·class="w"> |
| 177 | ············</span><span·class="n">Id</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">no_domain</span><span·class="w"> | 177 | ············</span><span·class="n">Id</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">no_domain</span><span·class="w"> |
| 178 | ················</span><span·class="n">Fun</span><span·class="p">:</span><span·class="w">·</span><span·class="k">fun</span><span·class="w">·</span><span·class="nc">logger_filters</span><span·class="p">:</span><span·class="ss">domain</span><span·class="p">/</span><span·class="mi">2</span><span·class="w"> | 178 | ················</span><span·class="n">Fun</span><span·class="p">:</span><span·class="w">·</span><span·class="k">fun</span><span·class="w">·</span><span·class="nc">logger_filters</span><span·class="p">:</span><span·class="ss">domain</span><span·class="p">/</span><span·class="mi">2</span><span·class="w"> |
| 179 | ················</span><span·class="n">Arg</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id=" | 179 | ················</span><span·class="n">Arg</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id="1992298580-4">{</span><span·class="ss">log</span><span·class="p">,</span><span·class="ss">undefined</span><span·class="p">,</span><span·class="p"·data-group-id="1992298580-5">[</span><span·class="p"·data-group-id="1992298580-5">]</span><span·class="p"·data[·...·truncated·by·diffoscope;·len:·21,·SHA:·4eef75d09461eb21e63e37a21fdc58039e5415ea4b65f6e939093f9afa249a91·...·]-4">}</span><span·class="w"> |
| 180 | ········</span><span·class="n">Handler</span><span·class="w">·</span><span·class="n">Config</span><span·class="p">:</span><span·class="w"> | 180 | ········</span><span·class="n">Handler</span><span·class="w">·</span><span·class="n">Config</span><span·class="p">:</span><span·class="w"> |
| 181 | ············</span><span·class="nc">burst_limit_enable</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">true</span><span·class="w"> | 181 | ············</span><span·class="nc">burst_limit_enable</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">true</span><span·class="w"> |
| 182 | ············</span><span·class="nc">burst_limit_max_count</span><span·class="p">:</span><span·class="w">·</span><span·class="mi">500</span><span·class="w"> | 182 | ············</span><span·class="nc">burst_limit_max_count</span><span·class="p">:</span><span·class="w">·</span><span·class="mi">500</span><span·class="w"> |
| 183 | ············</span><span·class="nc">burst_limit_window_time</span><span·class="p">:</span><span·class="w">·</span><span·class="mi">1000</span><span·class="w"> | 183 | ············</span><span·class="nc">burst_limit_window_time</span><span·class="p">:</span><span·class="w">·</span><span·class="mi">1000</span><span·class="w"> |
| 184 | ············</span><span·class="nc">drop_mode_qlen</span><span·class="p">:</span><span·class="w">·</span><span·class="mi">200</span><span·class="w"> | 184 | ············</span><span·class="nc">drop_mode_qlen</span><span·class="p">:</span><span·class="w">·</span><span·class="mi">200</span><span·class="w"> |
| 185 | ············</span><span·class="nc">filesync_repeat_interval</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">no_repeat</span><span·class="w"> | 185 | ············</span><span·class="nc">filesync_repeat_interval</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">no_repeat</span><span·class="w"> |
| 186 | ············</span><span·class="nc">flush_qlen</span><span·class="p">:</span><span·class="w">·</span><span·class="mi">1000</span><span·class="w"> | 186 | ············</span><span·class="nc">flush_qlen</span><span·class="p">:</span><span·class="w">·</span><span·class="mi">1000</span><span·class="w"> |
| Offset 211, 15 lines modified | Offset 211, 15 lines modified | ||
| 211 | level·to·<code·class="inline">info</code></p><pre><code·class="makeup·erlang"·translate="no"><span·class="sc">$·</span><span·class="ss">erl</span><span·class="w">·</span><span·class="o">-</span><span·class="ss">kernel</span><span·class="w">·</span><span·class="ss">logger_level</span><span·class="w">·</span><span·class="ss">info</span><span·class="w"> | 211 | level·to·<code·class="inline">info</code></p><pre><code·class="makeup·erlang"·translate="no"><span·class="sc">$·</span><span·class="ss">erl</span><span·class="w">·</span><span·class="o">-</span><span·class="ss">kernel</span><span·class="w">·</span><span·class="ss">logger_level</span><span·class="w">·</span><span·class="ss">info</span><span·class="w"> |
| 212 | </span><span·class="o">=</span><span·class="n">PROGRESS</span><span·class="w">·</span><span·class="n">REPORT</span><span·class="o">==</span><span·class="o">==</span><span·class="w">·</span><span·class="mi">4</span><span·class="o">-</span><span·class="n">Nov</span><span·class="o">-</span><span·class="mi">2019</span><span·class="p">:</span><span·class="p">:</span><span·class="mi">16</span><span·class="p">:</span><span·class="mi">33</span><span·class="p">:</span><span·class="mf">11.742069</span><span·class="w">·</span><span·class="o">==</span><span·class="o">=</span><span·class="w"> | 212 | </span><span·class="o">=</span><span·class="n">PROGRESS</span><span·class="w">·</span><span·class="n">REPORT</span><span·class="o">==</span><span·class="o">==</span><span·class="w">·</span><span·class="mi">4</span><span·class="o">-</span><span·class="n">Nov</span><span·class="o">-</span><span·class="mi">2019</span><span·class="p">:</span><span·class="p">:</span><span·class="mi">16</span><span·class="p">:</span><span·class="mi">33</span><span·class="p">:</span><span·class="mf">11.742069</span><span·class="w">·</span><span·class="o">==</span><span·class="o">=</span><span·class="w"> |
| 213 | ····</span><span·class="nc">application</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">kernel</span><span·class="w"> | 213 | ····</span><span·class="nc">application</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">kernel</span><span·class="w"> |
| 214 | ····</span><span·class="nc">started_at</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">nonode@nohost</span><span·class="w"> | 214 | ····</span><span·class="nc">started_at</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">nonode@nohost</span><span·class="w"> |
| 215 | </span><span·class="o">=</span><span·class="n">PROGRESS</span><span·class="w">·</span><span·class="n">REPORT</span><span·class="o">==</span><span·class="o">==</span><span·class="w">·</span><span·class="mi">4</span><span·class="o">-</span><span·class="n">Nov</span><span·class="o">-</span><span·class="mi">2019</span><span·class="p">:</span><span·class="p">:</span><span·class="mi">16</span><span·class="p">:</span><span·class="mi">33</span><span·class="p">:</span><span·class="mf">11.746546</span><span·class="w">·</span><span·class="o">==</span><span·class="o">=</span><span·class="w"> | 215 | </span><span·class="o">=</span><span·class="n">PROGRESS</span><span·class="w">·</span><span·class="n">REPORT</span><span·class="o">==</span><span·class="o">==</span><span·class="w">·</span><span·class="mi">4</span><span·class="o">-</span><span·class="n">Nov</span><span·class="o">-</span><span·class="mi">2019</span><span·class="p">:</span><span·class="p">:</span><span·class="mi">16</span><span·class="p">:</span><span·class="mi">33</span><span·class="p">:</span><span·class="mf">11.746546</span><span·class="w">·</span><span·class="o">==</span><span·class="o">=</span><span·class="w"> |
| 216 | ····</span><span·class="nc">application</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">stdlib</span><span·class="w"> | 216 | ····</span><span·class="nc">application</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">stdlib</span><span·class="w"> |
| 217 | ····</span><span·class="nc">started_at</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">nonode@nohost</span><span·class="w"> | 217 | ····</span><span·class="nc">started_at</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">nonode@nohost</span><span·class="w"> |
| 218 | </span><span·class="n">Eshell</span><span·class="w">·</span><span·class="n">V10</span><span·class="p">.</span><span·class="mf">5.3</span><span·class="w">··</span><span·class="p"·data-group-id=" | 218 | </span><span·class="n">Eshell</span><span·class="w">·</span><span·class="n">V10</span><span·class="p">.</span><span·class="mf">5.3</span><span·class="w">··</span><span·class="p"·data-group-id="0725881778-1">(</span><span·class="ss">abort</span><span·class="w">·</span><span·class="ss">with</span><span·class="w">·</span><span·class="err">^</span><span·class="n">G</span><span·class="p"·data-group-id="0725881778-1">)</span><span·class="w"> |
| 219 | </span><span·class="mi">1</span><span·class="o">></span></code></pre><h2·id="configure-logger-formatter"·class="section-heading"> | 219 | </span><span·class="mi">1</span><span·class="o">></span></code></pre><h2·id="configure-logger-formatter"·class="section-heading"> |
| 220 | ··<a·href="#configure-logger-formatter"·class="hover-link"> | 220 | ··<a·href="#configure-logger-formatter"·class="hover-link"> |
| 221 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 221 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 222 | ··</a> | 222 | ··</a> |
| 223 | ··<span·class="text">Configure·Logger·formatter</span> | 223 | ··<span·class="text">Configure·Logger·formatter</span> |
| 224 | </h2> | 224 | </h2> |
| 225 | <p>In·order·to·fit·better·into·your·existing·logging·infrastructure·Logger·can | 225 | <p>In·order·to·fit·better·into·your·existing·logging·infrastructure·Logger·can |
| Offset 229, 40 lines modified | Offset 229, 40 lines modified | ||
| 229 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 229 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 230 | ··</a> | 230 | ··</a> |
| 231 | ··<span·class="text">Single·line·configuration</span> | 231 | ··<span·class="text">Single·line·configuration</span> |
| 232 | </h3> | 232 | </h3> |
| 233 | <p>Since·single·line·logging·is·the·default·of·the·built-in·formatter·you·only·have | 233 | <p>Since·single·line·logging·is·the·default·of·the·built-in·formatter·you·only·have |
| 234 | to·provide·the·empty·map·as·the·configuration.·The·example·below·uses·the | 234 | to·provide·the·empty·map·as·the·configuration.·The·example·below·uses·the |
| 235 | <code·class="inline">sys.config</code>·to·change·the·formatter·configuration.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="sc">$·</span><span·class="ss">cat</span><span·class="w">·</span><span·class="ss">sys</span><span·class="p">.</span><span·class="ss">config</span><span·class="w"> | 235 | <code·class="inline">sys.config</code>·to·change·the·formatter·configuration.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="sc">$·</span><span·class="ss">cat</span><span·class="w">·</span><span·class="ss">sys</span><span·class="p">.</span><span·class="ss">config</span><span·class="w"> |
| 236 | </span><span·class="p"·data-group-id=" | 236 | </span><span·class="p"·data-group-id="5598960938-1">[</span><span·class="p"·data-group-id="5598960938-2">{</span><span·class="ss">kernel</span><span·class="p">,</span><span·class="w"> |
| 237 | ··</span><span·class="p"·data-group-id=" | 237 | ··</span><span·class="p"·data-group-id="5598960938-3">[</span><span·class="p"·data-group-id="5598960938-4">{</span><span·class="ss">logger</span><span·class="p">,</span><span·class="w"> |
| 238 | ····</span><span·class="p"·data-group-id=" | 238 | ····</span><span·class="p"·data-group-id="5598960938-5">[</span><span·class="p"·data-group-id="5598960938-6">{</span><span·class="ss">handler</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">default</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">logger_std_h</span><span·class="p">,</span><span·class="w"> |
| 239 | ······</span><span·class="p"·data-group-id=" | 239 | ······</span><span·class="p"·data-group-id="5598960938-7">#{</span><span·class="w">·</span><span·class="ss">formatter</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="5598960938-8">{</span><span·class="ss">logger_formatter</span><span·c[·...·truncated·by·diffoscope;·len:·584,·SHA:·b733be5636cffaf58d21cab2e4e97b6154c2d4c293f2eb6e0f6a00c43984115f·...·]-1">]</span><span·class="p">.</span><span·class="w"> |
| 240 | </span><span·class="sc">$·</span><span·class="ss">erl</span><span·class="w">·</span><span·class="o">-</span><span·class="ss">config</span><span·class="w">·</span><span·class="ss">sys</span><span·class="w"> | 240 | </span><span·class="sc">$·</span><span·class="ss">erl</span><span·class="w">·</span><span·class="o">-</span><span·class="ss">config</span><span·class="w">·</span><span·class="ss">sys</span><span·class="w"> |
| 241 | </span><span·class="n">Eshell</span><span·class="w">·</span><span·class="n">V10</span><span·class="p">.</span><span·class="mf">5.1</span><span·class="w">··</span><span·class="p"·data-group-id=" | 241 | </span><span·class="n">Eshell</span><span·class="w">·</span><span·class="n">V10</span><span·class="p">.</span><span·class="mf">5.1</span><span·class="w">··</span><span·class="p"·data-group-id="5598960938-10">(</span><span·class="ss">abort</span><span·class="w">·</span><span·class="ss">with</span><span·class="w">·</span><span·class="err">^</span><span·class="n">G</span><span·class="p"·data-group-id="5598960938-10">)</span><span·class="gp·unselectable"> |
| 242 | 1>·</span><span·class="nc">logger</span><span·class="p">:</span><span·class="nf">error</span><span·class="p"·data-group-id=" | 242 | 1>·</span><span·class="nc">logger</span><span·class="p">:</span><span·class="nf">error</span><span·class="p"·data-group-id="5598960938-11">(</span><span·class="s">"Oh·noes,·an·error"</span><span·class="p"·data-group-id="5598960938-11">)</span><span·class="p">.</span><span·class="w"> |
| 243 | </span><span·class="mi">1962</span><span·class="o">-</span><span·class="mi">10</span><span·class="o">-</span><span·class="mi">03</span><span·class="n">T11</span><span·class="p">:</span><span·class="mi">07</span><span·class="p">:</span><span·class="mf">47.466763</span><span·class="o">-</span><span·class="mi">04</span><span·class="p">:</span><span·class="mi">00</span><span·class="w">·</span><span·class="nc">error</span><span·class="p">:</span><span·class="w">·</span><span·class="n">Oh</span><span·class="w">·</span><span·class="ss">noes</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">an</span><span·class="w">·</span><span·class="ss">error</span></code></pre><p>However,·if·you·just·want·to·change·it·for·the·current·session·you·can·also·do | 243 | </span><span·class="mi">1962</span><span·class="o">-</span><span·class="mi">10</span><span·class="o">-</span><span·class="mi">03</span><span·class="n">T11</span><span·class="p">:</span><span·class="mi">07</span><span·class="p">:</span><span·class="mf">47.466763</span><span·class="o">-</span><span·class="mi">04</span><span·class="p">:</span><span·class="mi">00</span><span·class="w">·</span><span·class="nc">error</span><span·class="p">:</span><span·class="w">·</span><span·class="n">Oh</span><span·class="w">·</span><span·class="ss">noes</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">an</span><span·class="w">·</span><span·class="ss">error</span></code></pre><p>However,·if·you·just·want·to·change·it·for·the·current·session·you·can·also·do |
| 244 | that.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">logger</span><span·class="p">:</span><span·class="nf">set_handler_config</span><span·class="p"·data-group-id=" | 244 | that.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">logger</span><span·class="p">:</span><span·class="nf">set_handler_config</span><span·class="p"·data-group-id="5291862562-1">(</span><span·class="ss">default</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">formatter</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="5291862562-2">{</span><span·class="ss">logg[·...·truncated·by·diffoscope;·len:·268,·SHA:·04f35ae9efcab821659c262b60371b0decbc6eac3dbae1f3e4b6d4375346aa01·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 245 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> | 245 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> |
| 246 | 2>·</span><span·class="nc">logger</span><span·class="p">:</span><span·class="nf">error</span><span·class="p"·data-group-id=" | 246 | 2>·</span><span·class="nc">logger</span><span·class="p">:</span><span·class="nf">error</span><span·class="p"·data-group-id="5291862562-4">(</span><span·class="s">"Oh·noes,·another·error"</span><span·class="p"·data-group-id="5291862562-4">)</span><span·class="p">.</span><span·class="w"> |
| 247 | </span><span·class="mi">1962</span><span·class="o">-</span><span·class="mi">10</span><span·class="o">-</span><span·class="mi">04</span><span·class="n">T15</span><span·class="p">:</span><span·class="mi">34</span><span·class="p">:</span><span·class="mf">02.648713</span><span·class="o">-</span><span·class="mi">04</span><span·class="p">:</span><span·class="mi">00</span><span·class="w">·</span><span·class="nc">error</span><span·class="p">:</span><span·class="w">·</span><span·class="n">Oh</span><span·class="w">·</span><span·class="ss">noes</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">another</span><span·class="w">·</span><span·class="ss">error</span></code></pre><h4>See·also</h4><ul><li><a·href="logger_formatter.html#t:config/0">logger_formatter's·Configuration</a></li><li><a·href="logger_chapter.html#formatters">Formatters</a>·in·the·Logging·User's·Guide</li><li><a·href="logger.html#set_handler_config/3"><code·class="inline">logger:set_handler_config/3</code></a></li></ul><h3·id="add-file-and-line-number-to-log-entries"·class="section-heading"> | 247 | </span><span·class="mi">1962</span><span·class="o">-</span><span·class="mi">10</span><span·class="o">-</span><span·class="mi">04</span><span·class="n">T15</span><span·class="p">:</span><span·class="mi">34</span><span·class="p">:</span><span·class="mf">02.648713</span><span·class="o">-</span><span·class="mi">04</span><span·class="p">:</span><span·class="mi">00</span><span·class="w">·</span><span·class="nc">error</span><span·class="p">:</span><span·class="w">·</span><span·class="n">Oh</span><span·class="w">·</span><span·class="ss">noes</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">another</span><span·class="w">·</span><span·class="ss">error</span></code></pre><h4>See·also</h4><ul><li><a·href="logger_formatter.html#t:config/0">logger_formatter's·Configuration</a></li><li><a·href="logger_chapter.html#formatters">Formatters</a>·in·the·Logging·User's·Guide</li><li><a·href="logger.html#set_handler_config/3"><code·class="inline">logger:set_handler_config/3</code></a></li></ul><h3·id="add-file-and-line-number-to-log-entries"·class="section-heading"> |
| 248 | ··<a·href="#add-file-and-line-number-to-log-entries"·class="hover-link"> | 248 | ··<a·href="#add-file-and-line-number-to-log-entries"·class="hover-link"> |
| 249 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 249 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 250 | ··</a> | 250 | ··</a> |
| 251 | ··<span·class="text">Add·file·and·line·number·to·log·entries</span> | 251 | ··<span·class="text">Add·file·and·line·number·to·log·entries</span> |
| 252 | </h3> | 252 | </h3> |
| 253 | <p>You·can·change·what·is·printed·to·the·log·by·using·the·formatter·template:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="sc">$·</span><span·class="ss">cat</span><span·class="w">·</span><span·class="ss">sys</span><span·class="p">.</span><span·class="ss">config</span><span·class="w"> | 253 | <p>You·can·change·what·is·printed·to·the·log·by·using·the·formatter·template:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="sc">$·</span><span·class="ss">cat</span><span·class="w">·</span><span·class="ss">sys</span><span·class="p">.</span><span·class="ss">config</span><span·class="w"> |
| 254 | </span><span·class="p"·data-group-id="9 | 254 | </span><span·class="p"·data-group-id="0969393871-1">[</span><span·class="p"·data-group-id="0969393871-2">{</span><span·class="ss">kernel</span><span·class="p">,</span><span·class="w"> |
| 255 | ··</span><span·class="p"·data-group-id="9 | 255 | ··</span><span·class="p"·data-group-id="0969393871-3">[</span><span·class="p"·data-group-id="0969393871-4">{</span><span·class="ss">logger</span><span·class="p">,</span><span·class="w"> |
| 256 | ····</span><span·class="p"·data-group-id="9 | 256 | ····</span><span·class="p"·data-group-id="0969393871-5">[</span><span·class="p"·data-group-id="0969393871-6">{</span><span·class="ss">handler</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">default</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">logger_std_h</span><span·class="p">,</span><span·class="w"> |
| 257 | ······</span><span·class="p"·data-group-id="9 | 257 | ······</span><span·class="p"·data-group-id="0969393871-7">#{</span><span·class="w">·</span><span·class="ss">formatter</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="0969393871-8">{</span><span·class="ss">logger_formatter</span><span·class="p">,</span><span·class="w"> |
| 258 | ········</span><span·class="p"·data-group-id="9 | 258 | ········</span><span·class="p"·data-group-id="0969393871-9">#{</span><span·class="w">·</span><span·class="ss">template</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="0969393871-10">[</span><span·class="ss">time</span><span·class="p">,</[·...·truncated·by·diffoscope;·len:·1058,·SHA:·329cc72c2b7d50716578beb9dddf5bcbd07638c083988af61ec8eb98a099b90c·...·]-1">]</span><span·class="p">.</span><span·class="w"> |
| 259 | </span><span·class="sc">$·</span><span·class="ss">erl</span><span·class="w">·</span><span·class="o">-</span><span·class="ss">config</span><span·class="w">·</span><span·class="ss">sys</span><span·class="w"> | 259 | </span><span·class="sc">$·</span><span·class="ss">erl</span><span·class="w">·</span><span·class="o">-</span><span·class="ss">config</span><span·class="w">·</span><span·class="ss">sys</span><span·class="w"> |
| 260 | </span><span·class="n">Eshell</span><span·class="w">·</span><span·class="n">V10</span><span·class="p">.</span><span·class="mf">5.1</span><span·class="w">··</span><span·class="p"·data-group-id="9 | 260 | </span><span·class="n">Eshell</span><span·class="w">·</span><span·class="n">V10</span><span·class="p">.</span><span·class="mf">5.1</span><span·class="w">··</span><span·class="p"·data-group-id="0969393871-11">(</span><span·class="ss">abort</span><span·class="w">·</span><span·class="ss">with</span><span·class="w">·</span><span·class="err">^</span><span·class="n">G</span><span·class="p"·data-group-id="0969393871-11">)</span><span·class="gp·unselectable"> |
| 261 | 1>·</span><span·class="nc">logger</span><span·class="p">:</span><span·class="nf">error</span><span·class="p"·data-group-id="9 | 261 | 1>·</span><span·class="nc">logger</span><span·class="p">:</span><span·class="nf">error</span><span·class="p"·data-group-id="0969393871-12">(</span><span·class="s">"Oh·noes,·more·errors"</span><span·class="p">,</span><span·class="p"·data-group-id="0969393871-13">#{</span><span·class="w">·</span><span·class="ss">file</span><span·class="w">·</span><span·class="p">=></[·...·truncated·by·diffoscope;·len:·369,·SHA:·0cd9467bf3a3ffbb1ba970b6eb68f097ca6db997e2176a24cc9f33e8283f89e8·...·]-12">)</span><span·class="p">.</span><span·class="w"> |
| 262 | </span><span·class="mi">1962</span><span·class="o">-</span><span·class="mi">10</span><span·class="o">-</span><span·class="mi">05</span><span·class="n">T07</span><span·class="p">:</span><span·class="mi">37</span><span·class="p">:</span><span·class="mf">44.104241</span><span·class="o">+</span><span·class="mi">02</span><span·class="p">:</span><span·class="mi">00</span><span·class="w">·</span><span·class="ss">shell</span><span·class="p">.</span><span·class="nc">erl</span><span·class="p">:</span><span·class="mi">1</span><span·class="w">·</span><span·class="nc">error</span><span·class="p">:</span><span·class="w">·</span><span·class="n">Oh</span><span·class="w">·</span><span·class="ss">noes</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">more</span><span·class="w">·</span><span·class="ss">errors</span></code></pre><p>Note·that·file·and·line·have·to·be·added·in·the·metadata·by·the·caller·of | 262 | </span><span·class="mi">1962</span><span·class="o">-</span><span·class="mi">10</span><span·class="o">-</span><span·class="mi">05</span><span·class="n">T07</span><span·class="p">:</span><span·class="mi">37</span><span·class="p">:</span><span·class="mf">44.104241</span><span·class="o">+</span><span·class="mi">02</span><span·class="p">:</span><span·class="mi">00</span><span·class="w">·</span><span·class="ss">shell</span><span·class="p">.</span><span·class="nc">erl</span><span·class="p">:</span><span·class="mi">1</span><span·class="w">·</span><span·class="nc">error</span><span·class="p">:</span><span·class="w">·</span><span·class="n">Oh</span><span·class="w">·</span><span·class="ss">noes</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">more</span><span·class="w">·</span><span·class="ss">errors</span></code></pre><p>Note·that·file·and·line·have·to·be·added·in·the·metadata·by·the·caller·of |
| 263 | <a·href="logger.html#log/3"><code·class="inline">logger:log/3</code></a>·as·otherwise·Logger·will·not·know·from·where·it·was·called.·The | 263 | <a·href="logger.html#log/3"><code·class="inline">logger:log/3</code></a>·as·otherwise·Logger·will·not·know·from·where·it·was·called.·The |
| 264 | file·and·line·number·are·automatically·added·if·you·use·the·<code·class="inline">?LOG_ERROR</code>·macros | 264 | file·and·line·number·are·automatically·added·if·you·use·the·<code·class="inline">?LOG_ERROR</code>·macros |
| 265 | in·<code·class="inline">kernel/include/logger.hrl</code>.</p><h4>See·also</h4><ul><li><a·href="logger_formatter.html#t:config/0">logger_formatter's·Configuration</a></li><li><a·href="logger_formatter.html#t:template/0">logger_formatter's·Template</a></li><li><a·href="logger.html#module-macros">Logger·Macros</a></li><li><a·href="logger_chapter.html#metadata">Metadata</a>·in·the·Logging·User's·Guide</li></ul><h2·id="configuring-handlers"·class="section-heading"> | 265 | in·<code·class="inline">kernel/include/logger.hrl</code>.</p><h4>See·also</h4><ul><li><a·href="logger_formatter.html#t:config/0">logger_formatter's·Configuration</a></li><li><a·href="logger_formatter.html#t:template/0">logger_formatter's·Template</a></li><li><a·href="logger.html#module-macros">Logger·Macros</a></li><li><a·href="logger_chapter.html#metadata">Metadata</a>·in·the·Logging·User's·Guide</li></ul><h2·id="configuring-handlers"·class="section-heading"> |
| 266 | ··<a·href="#configuring-handlers"·class="hover-link"> | 266 | ··<a·href="#configuring-handlers"·class="hover-link"> |
| 267 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 267 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 268 | ··</a> | 268 | ··</a> |
| Offset 271, 67 lines modified | Offset 271, 67 lines modified | ||
| 271 | <h3·id="print-logs-to-a-file"·class="section-heading"> | 271 | <h3·id="print-logs-to-a-file"·class="section-heading"> |
| 272 | ··<a·href="#print-logs-to-a-file"·class="hover-link"> | 272 | ··<a·href="#print-logs-to-a-file"·class="hover-link"> |
| 273 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 273 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 274 | ··</a> | 274 | ··</a> |
| 275 | ··<span·class="text">Print·logs·to·a·file</span> | 275 | ··<span·class="text">Print·logs·to·a·file</span> |
| 276 | </h3> | 276 | </h3> |
| 277 | <p>Instead·of·printing·the·logs·to·stdout·we·print·them·to·a·rotating·file·log.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="sc">$·</span><span·class="ss">cat</span><span·class="w">·</span><span·class="ss">sys</span><span·class="p">.</span><span·class="ss">config</span><span·class="w"> | 277 | <p>Instead·of·printing·the·logs·to·stdout·we·print·them·to·a·rotating·file·log.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="sc">$·</span><span·class="ss">cat</span><span·class="w">·</span><span·class="ss">sys</span><span·class="p">.</span><span·class="ss">config</span><span·class="w"> |
| 278 | </span><span·class="p"·data-group-id=" | 278 | </span><span·class="p"·data-group-id="4797758272-1">[</span><span·class="p"·data-group-id="4797758272-2">{</span><span·class="ss">kernel</span><span·class="p">,</span><span·class="w"> |
| 279 | ··</span><span·class="p"·data-group-id=" | 279 | ··</span><span·class="p"·data-group-id="4797758272-3">[</span><span·class="p"·data-group-id="4797758272-4">{</span><span·class="ss">logger</span><span·class="p">,</span><span·class="w"> |
| 280 | ····</span><span·class="p"·data-group-id=" | 280 | ····</span><span·class="p"·data-group-id="4797758272-5">[</span><span·class="p"·data-group-id="4797758272-6">{</span><span·class="ss">handler</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">default</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">logger_std_h</span><span·class="p">,</span><span·class="w"> |
| 281 | ······</span><span·class="p"·data-group-id=" | 281 | ······</span><span·class="p"·data-group-id="4797758272-7">#{</span><span·class="w">·</span><span·class="ss">config</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="4797758272-8">#{</span><span·class="w">·</span><span·class="ss">file</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"log/erlang.log"</span><span·class="p">,</span><span·class="w"> |
| 282 | ······················</span><span·class="ss">max_no_bytes</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="mi">4096</span><span·class="p">,</span><span·class="w"> | 282 | ······················</span><span·class="ss">max_no_bytes</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="mi">4096</span><span·class="p">,</span><span·class="w"> |
| 283 | ······················</span><span·class="ss">max_no_files</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="mi">5</span><span·class="p"·data-group-id=" | 283 | ······················</span><span·class="ss">max_no_files</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="mi">5</span><span·class="p"·data-group-id="4797758272-8">}</span><span·class="p">,</span><span·class="w"> |
| 284 | ·········</span><span·class="ss">formatter</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id=" | 284 | ·········</span><span·class="ss">formatter</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="4797758272-9">{</span><span·class="ss">logger_formatter</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4797758272-10">#{</span><span·class="p"·data-group-id="4797758272-10">}</span><span·class="p"·data-group-id="479775[·...·truncated·by·diffoscope;·len:·375,·SHA:·3a786a75645e418e24c07999e1555f73cc99dee8bd1b609109251945d9725181·...·]-1">]</span><span·class="p">.</span><span·class="w"> |
| 285 | </span><span·class="sc">$·</span><span·class="ss">erl</span><span·class="w">·</span><span·class="o">-</span><span·class="ss">config</span><span·class="w">·</span><span·class="ss">sys</span><span·class="w"> | 285 | </span><span·class="sc">$·</span><span·class="ss">erl</span><span·class="w">·</span><span·class="o">-</span><span·class="ss">config</span><span·class="w">·</span><span·class="ss">sys</span><span·class="w"> |
| 286 | </span><span·class="n">Eshell</span><span·class="w">·</span><span·class="n">V10</span><span·class="p">.</span><span·class="mf">5.1</span><span·class="w">··</span><span·class="p"·data-group-id=" | 286 | </span><span·class="n">Eshell</span><span·class="w">·</span><span·class="n">V10</span><span·class="p">.</span><span·class="mf">5.1</span><span·class="w">··</span><span·class="p"·data-group-id="4797758272-11">(</span><span·class="ss">abort</span><span·class="w">·</span><span·class="ss">with</span><span·class="w">·</span><span·class="err">^</span><span·class="n">G</span><span·class="p"·data-group-id="4797758272-11">)</span><span·class="gp·unselectable"> |
| 287 | 1>·</span><span·class="nc">logger</span><span·class="p">:</span><span·class="nf">error</span><span·class="p"·data-group-id=" | 287 | 1>·</span><span·class="nc">logger</span><span·class="p">:</span><span·class="nf">error</span><span·class="p"·data-group-id="4797758272-12">(</span><span·class="s">"Oh·noes,·even·more·errors"</span><span·class="p"·data-group-id="4797758272-12">)</span><span·class="p">.</span><span·class="w"> |
| 288 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> | 288 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> |
| 289 | 2>·</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">halt</span><span·class="p"·data-group-id=" | 289 | 2>·</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">halt</span><span·class="p"·data-group-id="4797758272-13">(</span><span·class="p"·data-group-id="4797758272-13">)</span><span·class="p">.</span><span·class="w"> |
| 290 | </span><span·class="sc">$·</span><span·class="ss">cat</span><span·class="w">·</span><span·class="ss">log</span><span·class="o">/</span><span·class="ss">erlang</span><span·class="p">.</span><span·class="ss">log</span><span·class="w"> | 290 | </span><span·class="sc">$·</span><span·class="ss">cat</span><span·class="w">·</span><span·class="ss">log</span><span·class="o">/</span><span·class="ss">erlang</span><span·class="p">.</span><span·class="ss">log</span><span·class="w"> |
| 291 | </span><span·class="mi">2019</span><span·class="o">-</span><span·class="mi">10</span><span·class="o">-</span><span·class="mi">07</span><span·class="n">T11</span><span·class="p">:</span><span·class="mi">47</span><span·class="p">:</span><span·class="mf">16.837958</span><span·class="o">+</span><span·class="mi">02</span><span·class="p">:</span><span·class="mi">00</span><span·class="w">·</span><span·class="nc">error</span><span·class="p">:</span><span·class="w">·</span><span·class="n">Oh</span><span·class="w">·</span><span·class="ss">noes</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">even</span><span·class="w">·</span><span·class="ss">more</span><span·class="w">·</span><span·class="ss">errors</span></code></pre><h4>See·also</h4><ul><li><a·href="logger_std_h.html"><code·class="inline">logger_std_h</code></a></li><li><a·href="logger_chapter.html#handlers">Handlers</a>·in·the·Logging·User's·Guide</li></ul><h3·id="debug-only-handler"·class="section-heading"> | 291 | </span><span·class="mi">2019</span><span·class="o">-</span><span·class="mi">10</span><span·class="o">-</span><span·class="mi">07</span><span·class="n">T11</span><span·class="p">:</span><span·class="mi">47</span><span·class="p">:</span><span·class="mf">16.837958</span><span·class="o">+</span><span·class="mi">02</span><span·class="p">:</span><span·class="mi">00</span><span·class="w">·</span><span·class="nc">error</span><span·class="p">:</span><span·class="w">·</span><span·class="n">Oh</span><span·class="w">·</span><span·class="ss">noes</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">even</span><span·class="w">·</span><span·class="ss">more</span><span·class="w">·</span><span·class="ss">errors</span></code></pre><h4>See·also</h4><ul><li><a·href="logger_std_h.html"><code·class="inline">logger_std_h</code></a></li><li><a·href="logger_chapter.html#handlers">Handlers</a>·in·the·Logging·User's·Guide</li></ul><h3·id="debug-only-handler"·class="section-heading"> |
| 292 | ··<a·href="#debug-only-handler"·class="hover-link"> | 292 | ··<a·href="#debug-only-handler"·class="hover-link"> |
| 293 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 293 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
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| 160 | sync·if·something·has·actually·been·logged.</p><p>Defaults·to·<code·class="inline">5000</code>·milliseconds.</p><p>If·<code·class="inline">no_repeat</code>·is·set·as·value,·the·repeated·sync·operation·is·disabled.·The | 160 | sync·if·something·has·actually·been·logged.</p><p>Defaults·to·<code·class="inline">5000</code>·milliseconds.</p><p>If·<code·class="inline">no_repeat</code>·is·set·as·value,·the·repeated·sync·operation·is·disabled.·The |
| 161 | user·can·also·call·the·<a·href="#filesync/1"><code·class="inline">filesync/1</code></a>·function·to·perform·a | 161 | user·can·also·call·the·<a·href="#filesync/1"><code·class="inline">filesync/1</code></a>·function·to·perform·a |
| 162 | disk_log·sync.</p></li></ul><p>Other·configuration·parameters·exist,·to·be·used·for·customizing·the·overload | 162 | disk_log·sync.</p></li></ul><p>Other·configuration·parameters·exist,·to·be·used·for·customizing·the·overload |
| 163 | protection·behaviour.·The·same·parameters·are·used·both·in·the·standard·handler | 163 | protection·behaviour.·The·same·parameters·are·used·both·in·the·standard·handler |
| 164 | and·the·disk_log·handler,·and·are·documented·in·the | 164 | and·the·disk_log·handler,·and·are·documented·in·the |
| 165 | <a·href="logger_chapter.html#overload_protection"><code·class="inline">User's·Guide</code></a>.</p><p>Notice·that·when·changing·the·configuration·of·the·handler·in·runtime,·the | 165 | <a·href="logger_chapter.html#overload_protection"><code·class="inline">User's·Guide</code></a>.</p><p>Notice·that·when·changing·the·configuration·of·the·handler·in·runtime,·the |
| 166 | disk_log·options·(<code·class="inline">file</code>,·<code·class="inline">type</code>,·<code·class="inline">max_no_files</code>,·<code·class="inline">max_no_bytes</code>)·must·not·be | 166 | disk_log·options·(<code·class="inline">file</code>,·<code·class="inline">type</code>,·<code·class="inline">max_no_files</code>,·<code·class="inline">max_no_bytes</code>)·must·not·be |
| 167 | modified.</p><p>Example·of·adding·a·disk_log·handler:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">logger</span><span·class="p">:</span><span·class="nf">add_handler</span><span·class="p"·data-group-id=" | 167 | modified.</p><p>Example·of·adding·a·disk_log·handler:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">logger</span><span·class="p">:</span><span·class="nf">add_handler</span><span·class="p"·data-group-id="1211650345-1">(</span><span·class="ss">my_disk_log_h</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">logger_disk_log_h</span><span·class="p">,</span><span·class="w"> |
| 168 | ···················</span><span·class="p"·data-group-id=" | 168 | ···················</span><span·class="p"·data-group-id="1211650345-2">#{</span><span·class="ss">config</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="1211650345-3">#{</span><span·class="ss">file</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"./my_disk_log"</span><span·class="p">,</span><span·class="w"> |
| 169 | ·································</span><span·class="ss">type</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">wrap</span><span·class="p">,</span><span·class="w"> | 169 | ·································</span><span·class="ss">type</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">wrap</span><span·class="p">,</span><span·class="w"> |
| 170 | ·································</span><span·class="ss">max_no_files</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="mi">4</span><span·class="p">,</span><span·class="w"> | 170 | ·································</span><span·class="ss">max_no_files</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="mi">4</span><span·class="p">,</span><span·class="w"> |
| 171 | ·································</span><span·class="ss">max_no_bytes</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="mi">10000</span><span·class="p">,</span><span·class="w"> | 171 | ·································</span><span·class="ss">max_no_bytes</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="mi">10000</span><span·class="p">,</span><span·class="w"> |
| 172 | ·································</span><span·class="ss">filesync_repeat_interval</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="mi">1000</span><span·class="p"·data-group-id=" | 172 | ·································</span><span·class="ss">filesync_repeat_interval</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="mi">1000</span><span·class="p"·data-group-id="1211650345-3">}</span><span·class="p"·data-group-id="1211650345-2">}</span><span·class="p"·data-group-id="1211650345-1">)</span><span·class="p">.</span></code></pre><p>To·use·the·disk_log·handler·instead·of·the·default·standard·handler·when |
| 173 | starting·an·Erlang·node,·change·the·Kernel·default·logger·to·use | 173 | starting·an·Erlang·node,·change·the·Kernel·default·logger·to·use |
| 174 | <code·class="inline">logger_disk_log_h</code>.·Example:</p><pre><code·class="text">erl·-kernel·logger·'[{handler,default,logger_disk_log_h, | 174 | <code·class="inline">logger_disk_log_h</code>.·Example:</p><pre><code·class="text">erl·-kernel·logger·'[{handler,default,logger_disk_log_h, |
| 175 | ······················#{config·=>·#{file·=>·"./system_disk_log"}}}]'</code></pre><h2·id="module-see-also"·class="section-heading"> | 175 | ······················#{config·=>·#{file·=>·"./system_disk_log"}}}]'</code></pre><h2·id="module-see-also"·class="section-heading"> |
| 176 | ··<a·href="#module-see-also"·class="hover-link"> | 176 | ··<a·href="#module-see-also"·class="hover-link"> |
| 177 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 177 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 178 | ··</a> | 178 | ··</a> |
| 179 | ··<span·class="text">See·Also</span> | 179 | ··<span·class="text">See·Also</span> |
| Offset 269, 15 lines modified | Offset 269, 15 lines modified | ||
| 269 | ······<p·class="built-using"> | 269 | ······<p·class="built-using"> |
| 270 | ········Built·using | 270 | ········Built·using |
| 271 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 271 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 272 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 272 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 273 | ······</p> | 273 | ······</p> |
| 274 | <p>Copyright·©·1996-202 | 274 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 275 | ····</footer> | 275 | ····</footer> |
| 276 | ··</div> | 276 | ··</div> |
| 277 | </main> | 277 | </main> |
| 278 | </div> | 278 | </div> |
| 279 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 279 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 280 | ··<script> | 280 | ··<script> |
| 281 | ··let·initialized·=·false; | 281 | ··let·initialized·=·false; |
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| 245 | ······</div> | 245 | ······</div> |
| 246 | <p>This·filter·provides·a·way·of·filtering·log·events·based·on·a·<code·class="inline">domain</code>·field·in | 246 | <p>This·filter·provides·a·way·of·filtering·log·events·based·on·a·<code·class="inline">domain</code>·field·in |
| 247 | <code·class="inline">Metadata</code>.·This·field·is·optional,·and·the·purpose·of·using·it·is·to·group·log | 247 | <code·class="inline">Metadata</code>.·This·field·is·optional,·and·the·purpose·of·using·it·is·to·group·log |
| 248 | events·from,·for·example,·a·specific·functional·area.·This·allows·filtering·or | 248 | events·from,·for·example,·a·specific·functional·area.·This·allows·filtering·or |
| 249 | other·specialized·treatment·in·a·Logger·handler.</p><p>A·domain·field·must·be·a·list·of·atoms,·creating·smaller·and·more·specialized | 249 | other·specialized·treatment·in·a·Logger·handler.</p><p>A·domain·field·must·be·a·list·of·atoms,·creating·smaller·and·more·specialized |
| 250 | domains·as·the·list·grows·longer.·The·greatest·domain·is·<code·class="inline">[]</code>,·which·comprises | 250 | domains·as·the·list·grows·longer.·The·greatest·domain·is·<code·class="inline">[]</code>,·which·comprises |
| 251 | all·possible·domains.</p><p>For·example,·consider·the·following·domains:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">D1</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="6 | 251 | all·possible·domains.</p><p>For·example,·consider·the·following·domains:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">D1</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="1628673664-1">[</span><span·class="ss">otp</span><span·class="p"·data-group-id="1628673664-1">]</span><span·class="w"> |
| 252 | </span><span·class="n">D2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="6 | 252 | </span><span·class="n">D2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="1628673664-2">[</span><span·class="ss">otp</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">sasl</span><span·class="p"·data-group-id="1628673664-2">]</span></code></pre><p><code·class="inline">D1</code>·is·the·greatest·of·the·two,·and·is·said·to·be·a·super-domain·of·<code·class="inline">D2</code>.·<code·class="inline">D2</code> |
| 253 | is·a·sub-domain·<code·class="inline">D1</code>.·Both·<code·class="inline">D1</code>·and·<code·class="inline">D2</code>·are·sub-domains·of·<code·class="inline">[]</code>.</p><p>The·above·domains·are·used·for·logs·originating·from·Erlang/OTP.·D1·specifies | 253 | is·a·sub-domain·<code·class="inline">D1</code>.·Both·<code·class="inline">D1</code>·and·<code·class="inline">D2</code>·are·sub-domains·of·<code·class="inline">[]</code>.</p><p>The·above·domains·are·used·for·logs·originating·from·Erlang/OTP.·D1·specifies |
| 254 | that·the·log·event·comes·from·Erlang/OTP·in·general,·and·D2·indicates·that·the | 254 | that·the·log·event·comes·from·Erlang/OTP·in·general,·and·D2·indicates·that·the |
| 255 | log·event·is·a·so·called·<a·href="logger_chapter.html#sasl_reports">SASL·report</a>.</p><p>The·<code·class="inline">Extra</code>·parameter·to·the·<a·href="#domain/2"><code·class="inline">domain/2</code></a>·function·is·specified·when | 255 | log·event·is·a·so·called·<a·href="logger_chapter.html#sasl_reports">SASL·report</a>.</p><p>The·<code·class="inline">Extra</code>·parameter·to·the·<a·href="#domain/2"><code·class="inline">domain/2</code></a>·function·is·specified·when |
| 256 | adding·the·filter·via·<a·href="logger.html#add_primary_filter/2"><code·class="inline">logger:add_primary_filter/2</code></a>·or | 256 | adding·the·filter·via·<a·href="logger.html#add_primary_filter/2"><code·class="inline">logger:add_primary_filter/2</code></a>·or |
| 257 | <a·href="logger.html#add_handler_filter/3"><code·class="inline">logger:add_handler_filter/3</code></a>.</p><p>The·filter·compares·the·value·of·the·<code·class="inline">domain</code>·field·in·the·log·event's·metadata | 257 | <a·href="logger.html#add_handler_filter/3"><code·class="inline">logger:add_handler_filter/3</code></a>.</p><p>The·filter·compares·the·value·of·the·<code·class="inline">domain</code>·field·in·the·log·event's·metadata |
| 258 | (<code·class="inline">Domain</code>)·against·<code·class="inline">MatchDomain</code>.·The·filter·matches·if·the·value·of·<code·class="inline">Compare</code> | 258 | (<code·class="inline">Domain</code>)·against·<code·class="inline">MatchDomain</code>.·The·filter·matches·if·the·value·of·<code·class="inline">Compare</code> |
| 259 | is:</p><ul><li><p><strong><code·class="inline">sub</code></strong>·-·and·<code·class="inline">Domain</code>·is·equal·to·or·a·sub-domain·of·<code·class="inline">MatchDomain</code>,·that | 259 | is:</p><ul><li><p><strong><code·class="inline">sub</code></strong>·-·and·<code·class="inline">Domain</code>·is·equal·to·or·a·sub-domain·of·<code·class="inline">MatchDomain</code>,·that |
| 260 | is,·if·<code·class="inline">MatchDomain</code>·is·a·prefix·of·<code·class="inline">Domain</code>.</p></li><li><p><strong><code·class="inline">super</code></strong>·-·and·<code·class="inline">Domain</code>·is·equal·to·or·a·super-domain·of·<code·class="inline">MatchDomain</code>, | 260 | is,·if·<code·class="inline">MatchDomain</code>·is·a·prefix·of·<code·class="inline">Domain</code>.</p></li><li><p><strong><code·class="inline">super</code></strong>·-·and·<code·class="inline">Domain</code>·is·equal·to·or·a·super-domain·of·<code·class="inline">MatchDomain</code>, |
| 261 | that·is,·if·<code·class="inline">Domain</code>·is·a·prefix·of·<code·class="inline">MatchDomain</code>.</p></li><li><p><strong><code·class="inline">equal</code></strong>·-·and·<code·class="inline">Domain</code>·is·equal·to·<code·class="inline">MatchDomain</code>.</p></li><li><p><strong><code·class="inline">not_equal</code></strong>·-·and·<code·class="inline">Domain</code>·differs·from·<code·class="inline">MatchDomain</code>,·or·if·there·is·no | 261 | that·is,·if·<code·class="inline">Domain</code>·is·a·prefix·of·<code·class="inline">MatchDomain</code>.</p></li><li><p><strong><code·class="inline">equal</code></strong>·-·and·<code·class="inline">Domain</code>·is·equal·to·<code·class="inline">MatchDomain</code>.</p></li><li><p><strong><code·class="inline">not_equal</code></strong>·-·and·<code·class="inline">Domain</code>·differs·from·<code·class="inline">MatchDomain</code>,·or·if·there·is·no |
| 262 | domain·field·in·metadata.</p></li><li><p><strong><code·class="inline">undefined</code></strong>·-·and·there·is·no·domain·field·in·metadata.·In·this·case | 262 | domain·field·in·metadata.</p></li><li><p><strong><code·class="inline">undefined</code></strong>·-·and·there·is·no·domain·field·in·metadata.·In·this·case |
| 263 | <code·class="inline">MatchDomain</code>·must·be·set·to·<code·class="inline">[]</code>.</p></li></ul><p>If·the·filter·matches·and·<code·class="inline">Action</code>·is·<code·class="inline">log</code>,·the·log·event·is·allowed.·If·the | 263 | <code·class="inline">MatchDomain</code>·must·be·set·to·<code·class="inline">[]</code>.</p></li></ul><p>If·the·filter·matches·and·<code·class="inline">Action</code>·is·<code·class="inline">log</code>,·the·log·event·is·allowed.·If·the |
| 264 | filter·matches·and·<code·class="inline">Action</code>·is·<code·class="inline">stop</code>,·the·log·event·is·stopped.</p><p>If·the·filter·does·not·match,·it·returns·<code·class="inline">ignore</code>,·meaning·that·other·filters, | 264 | filter·matches·and·<code·class="inline">Action</code>·is·<code·class="inline">stop</code>,·the·log·event·is·stopped.</p><p>If·the·filter·does·not·match,·it·returns·<code·class="inline">ignore</code>,·meaning·that·other·filters, |
| 265 | or·the·value·of·the·configuration·parameter·<code·class="inline">filter_default</code>,·decide·if·the | 265 | or·the·value·of·the·configuration·parameter·<code·class="inline">filter_default</code>,·decide·if·the |
| 266 | event·is·allowed·or·not.</p><p>Log·events·that·do·not·contain·any·domain·field,·match·only·when·<code·class="inline">Compare</code>·is | 266 | event·is·allowed·or·not.</p><p>Log·events·that·do·not·contain·any·domain·field,·match·only·when·<code·class="inline">Compare</code>·is |
| 267 | equal·to·<code·class="inline">undefined</code>·or·<code·class="inline">not_equal</code>.</p><p>Example:·stop·all·events·with·domain·<code·class="inline">[otp,·sasl·|·_]</code></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">logger</span><span·class="p">:</span><span·class="nf">set_handler_config</span><span·class="p"·data-group-id=" | 267 | equal·to·<code·class="inline">undefined</code>·or·<code·class="inline">not_equal</code>.</p><p>Example:·stop·all·events·with·domain·<code·class="inline">[otp,·sasl·|·_]</code></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">logger</span><span·class="p">:</span><span·class="nf">set_handler_config</span><span·class="p"·data-group-id="7536341547-1">(</span><span·class="ss">h1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">filter_default</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">log</span><span·class="p"·data-group-id="7536341547-1">)</span><span·class="p">.</span><span·class="w">·</span><span·class="c1">%·this·is·the·default</span><span·class="w"> |
| 268 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> | 268 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> |
| 269 | 2>·</span><span·class="n">Filter</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 269 | 2>·</span><span·class="n">Filter</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="7536341547-2">{</span><span·class="k">fun</span><span·class="w">·</span><span·class="nc">logger_filters</span><span·class="p">:</span><span·class="ss">domain</span><span·class="p">/</span><span·class="mi">2</span><span·class="p">,</span><span·class="w">·</[·...·truncated·by·diffoscope;·len:·511,·SHA:·d4d1a3f7dbd0a44a554db9d6770b60e525380cdea648407bd7d2c3a288f2cf28·...·]7-2">}</span><span·class="p">.</span><span·class="w"> |
| 270 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="gp·unselectable"> | 270 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="gp·unselectable"> |
| 271 | 3>·</span><span·class="nc">logger</span><span·class="p">:</span><span·class="nf">add_handler_filter</span><span·class="p"·data-group-id=" | 271 | 3>·</span><span·class="nc">logger</span><span·class="p">:</span><span·class="nf">add_handler_filter</span><span·class="p"·data-group-id="7536341547-5">(</span><span·class="ss">h1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">no_sasl</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Filter</span><span·class="p"·data-group-id="7536341547-5">)</span><span·class="p">.</span><span·class="w"> |
| 272 | </span><span·class="ss">ok</span></code></pre> | 272 | </span><span·class="ss">ok</span></code></pre> |
| 273 | ··</section> | 273 | ··</section> |
| 274 | </section> | 274 | </section> |
| 275 | <section·class="detail"·id="level/2"> | 275 | <section·class="detail"·id="level/2"> |
| 276 | ··<div·class="detail-header"> | 276 | ··<div·class="detail-header"> |
| 277 | ····<a·href="#level/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 277 | ····<a·href="#level/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| Offset 308, 17 lines modified | Offset 308, 17 lines modified | ||
| 308 | matches·log·events·by·comparing·the·log·level·with·a·specified·<code·class="inline">MatchLevel</code></p><p>The·<code·class="inline">Extra</code>·parameter·is·specified·when·adding·the·filter·via | 308 | matches·log·events·by·comparing·the·log·level·with·a·specified·<code·class="inline">MatchLevel</code></p><p>The·<code·class="inline">Extra</code>·parameter·is·specified·when·adding·the·filter·via |
| 309 | <a·href="logger.html#add_primary_filter/2"><code·class="inline">logger:add_primary_filter/2</code></a>·or·<a·href="logger.html#add_handler_filter/3"><code·class="inline">logger:add_handler_filter/3</code></a>.</p><p>The·filter·compares·the·value·of·the·event's·log·level·(<code·class="inline">Level</code>)·to·<code·class="inline">MatchLevel</code> | 309 | <a·href="logger.html#add_primary_filter/2"><code·class="inline">logger:add_primary_filter/2</code></a>·or·<a·href="logger.html#add_handler_filter/3"><code·class="inline">logger:add_handler_filter/3</code></a>.</p><p>The·filter·compares·the·value·of·the·event's·log·level·(<code·class="inline">Level</code>)·to·<code·class="inline">MatchLevel</code> |
| 310 | by·calling | 310 | by·calling |
| 311 | <a·href="logger.html#compare_levels/2"><code·class="inline">logger:compare_levels(Level,·MatchLevel)</code></a>.·The | 311 | <a·href="logger.html#compare_levels/2"><code·class="inline">logger:compare_levels(Level,·MatchLevel)</code></a>.·The |
| 312 | filter·matches·if·the·value·of·<code·class="inline">Operator</code>·is:</p><ul><li><p><strong><code·class="inline">neq</code></strong>·-·and·the·compare·function·returns·<code·class="inline">lt</code>·or·<code·class="inline">gt</code>.</p></li><li><p><strong><code·class="inline">eq</code></strong>·-·and·the·compare·function·returns·<code·class="inline">eq</code>.</p></li><li><p><strong><code·class="inline">lt</code></strong>·-·and·the·compare·function·returns·<code·class="inline">lt</code>.</p></li><li><p><strong><code·class="inline">gt</code></strong>·-·and·the·compare·function·returns·<code·class="inline">gt</code>.</p></li><li><p><strong><code·class="inline">lteq</code></strong>·-·and·the·compare·function·returns·<code·class="inline">lt</code>·or·<code·class="inline">eq</code>.</p></li><li><p><strong><code·class="inline">gteq</code></strong>·-·and·the·compare·function·returns·<code·class="inline">gt</code>·or·<code·class="inline">eq</code>.</p></li></ul><p>If·the·filter·matches·and·<code·class="inline">Action</code>·is·<code·class="inline">log</code>,·the·log·event·is·allowed.·If·the | 312 | filter·matches·if·the·value·of·<code·class="inline">Operator</code>·is:</p><ul><li><p><strong><code·class="inline">neq</code></strong>·-·and·the·compare·function·returns·<code·class="inline">lt</code>·or·<code·class="inline">gt</code>.</p></li><li><p><strong><code·class="inline">eq</code></strong>·-·and·the·compare·function·returns·<code·class="inline">eq</code>.</p></li><li><p><strong><code·class="inline">lt</code></strong>·-·and·the·compare·function·returns·<code·class="inline">lt</code>.</p></li><li><p><strong><code·class="inline">gt</code></strong>·-·and·the·compare·function·returns·<code·class="inline">gt</code>.</p></li><li><p><strong><code·class="inline">lteq</code></strong>·-·and·the·compare·function·returns·<code·class="inline">lt</code>·or·<code·class="inline">eq</code>.</p></li><li><p><strong><code·class="inline">gteq</code></strong>·-·and·the·compare·function·returns·<code·class="inline">gt</code>·or·<code·class="inline">eq</code>.</p></li></ul><p>If·the·filter·matches·and·<code·class="inline">Action</code>·is·<code·class="inline">log</code>,·the·log·event·is·allowed.·If·the |
| 313 | filter·matches·and·<code·class="inline">Action</code>·is·<code·class="inline">stop</code>,·the·log·event·is·stopped.</p><p>If·the·filter·does·not·match,·it·returns·<code·class="inline">ignore</code>,·meaning·that·other·filters, | 313 | filter·matches·and·<code·class="inline">Action</code>·is·<code·class="inline">stop</code>,·the·log·event·is·stopped.</p><p>If·the·filter·does·not·match,·it·returns·<code·class="inline">ignore</code>,·meaning·that·other·filters, |
| 314 | or·the·value·of·the·configuration·parameter·<code·class="inline">filter_default</code>,·will·decide·if·the | 314 | or·the·value·of·the·configuration·parameter·<code·class="inline">filter_default</code>,·will·decide·if·the |
| 315 | event·is·allowed·or·not.</p><p>Example:·only·allow·debug·level·log·events</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">logger</span><span·class="p">:</span><span·class="nf">set_handler_config</span><span·class="p"·data-group-id=" | 315 | event·is·allowed·or·not.</p><p>Example:·only·allow·debug·level·log·events</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">logger</span><span·class="p">:</span><span·class="nf">set_handler_config</span><span·class="p"·data-group-id="5690640252-1">(</span><span·class="ss">h1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">filter_default</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">stop</span><span·class="p"·data-group-id="5690640252-1">)</span><span·class="p">.</span><span·class="w"> |
| 316 | </span><span·class="n">Filter</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 316 | </span><span·class="n">Filter</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="5690640252-2">{</span><span·class="k">fun</span><span·class="w">·</span><span·class="nc">logger_filters</span><span·class="p">:</span><span·class="ss">level</span><span·class="p">/</span><span·class="mi">2</span><span·class="p">,</span><span·class="w">·</s[·...·truncated·by·diffoscope;·len:·329,·SHA:·88412cf479bc3dbf0d8151a7e7a83210f7abdb08e619f68bf7f6c6fc9c303bee·...·]-2">}</span><span·class="p">.</span><span·class="w"> |
| 317 | </span><span·class="nc">logger</span><span·class="p">:</span><span·class="nf">add_handler_filter</span><span·class="p"·data-group-id=" | 317 | </span><span·class="nc">logger</span><span·class="p">:</span><span·class="nf">add_handler_filter</span><span·class="p"·data-group-id="5690640252-4">(</span><span·class="ss">h1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">debug_only</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Filter</span><span·class="p"·data-group-id="5690640252-4">)</span><span·class="p">.</span><span·class="w"> |
| 318 | </span><span·class="ss">ok</span></code></pre> | 318 | </span><span·class="ss">ok</span></code></pre> |
| 319 | ··</section> | 319 | ··</section> |
| 320 | </section> | 320 | </section> |
| 321 | <section·class="detail"·id="progress/2"> | 321 | <section·class="detail"·id="progress/2"> |
| 322 | ··<div·class="detail-header"> | 322 | ··<div·class="detail-header"> |
| 323 | ····<a·href="#progress/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 323 | ····<a·href="#progress/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| Offset 402, 15 lines modified | Offset 402, 15 lines modified | ||
| 402 | ······<p·class="built-using"> | 402 | ······<p·class="built-using"> |
| 403 | ········Built·using | 403 | ········Built·using |
| 404 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 404 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 405 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 405 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 406 | ······</p> | 406 | ······</p> |
| 407 | <p>Copyright·©·1996-202 | 407 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 408 | ····</footer> | 408 | ····</footer> |
| 409 | ··</div> | 409 | ··</div> |
| 410 | </main> | 410 | </main> |
| 411 | </div> | 411 | </div> |
| 412 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 412 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 413 | ··<script> | 413 | ··<script> |
| 414 | ··let·initialized·=·false; | 414 | ··let·initialized·=·false; |
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| 607 | ······<p·class="built-using"> | 607 | ······<p·class="built-using"> |
| 608 | ········Built·using | 608 | ········Built·using |
| 609 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 609 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 610 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 610 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 611 | ······</p> | 611 | ······</p> |
| 612 | <p>Copyright·©·1996-202 | 612 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 613 | ····</footer> | 613 | ····</footer> |
| 614 | ··</div> | 614 | ··</div> |
| 615 | </main> | 615 | </main> |
| 616 | </div> | 616 | </div> |
| 617 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 617 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 618 | ··<script> | 618 | ··<script> |
| 619 | ··let·initialized·=·false; | 619 | ··let·initialized·=·false; |
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| 580 | ······<p·class="built-using"> | 580 | ······<p·class="built-using"> |
| 581 | ········Built·using | 581 | ········Built·using |
| 582 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 582 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 583 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 583 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 584 | ······</p> | 584 | ······</p> |
| 585 | <p>Copyright·©·1996-202 | 585 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 586 | ····</footer> | 586 | ····</footer> |
| 587 | ··</div> | 587 | ··</div> |
| 588 | </main> | 588 | </main> |
| 589 | </div> | 589 | </div> |
| 590 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 590 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 591 | ··<script> | 591 | ··<script> |
| 592 | ··let·initialized·=·false; | 592 | ··let·initialized·=·false; |
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| 181 | but·only·performs·a·new·sync·if·something·has·actually·been·logged.</p><p>If·<code·class="inline">no_repeat</code>·is·set·as·value,·the·repeated·file·sync·operation·is·disabled, | 181 | but·only·performs·a·new·sync·if·something·has·actually·been·logged.</p><p>If·<code·class="inline">no_repeat</code>·is·set·as·value,·the·repeated·file·sync·operation·is·disabled, |
| 182 | and·it·is·the·operating·system·settings·that·determine·how·quickly·or·slowly | 182 | and·it·is·the·operating·system·settings·that·determine·how·quickly·or·slowly |
| 183 | data·is·written·to·disk.·The·user·can·also·call·the·<a·href="#filesync/1"><code·class="inline">filesync/1</code></a>·function·to | 183 | data·is·written·to·disk.·The·user·can·also·call·the·<a·href="#filesync/1"><code·class="inline">filesync/1</code></a>·function·to |
| 184 | perform·a·file·sync.</p><p>Defaults·to·<code·class="inline">5000</code>·milliseconds.</p></li></ul><p>Other·configuration·parameters·exist,·to·be·used·for·customizing·the·overload | 184 | perform·a·file·sync.</p><p>Defaults·to·<code·class="inline">5000</code>·milliseconds.</p></li></ul><p>Other·configuration·parameters·exist,·to·be·used·for·customizing·the·overload |
| 185 | protection·behaviour.·The·same·parameters·are·used·both·in·the·standard·handler | 185 | protection·behaviour.·The·same·parameters·are·used·both·in·the·standard·handler |
| 186 | and·the·disk_log·handler,·and·are·documented·in·the | 186 | and·the·disk_log·handler,·and·are·documented·in·the |
| 187 | <a·href="logger_chapter.html#overload_protection"><code·class="inline">User's·Guide</code></a>.</p><p>Notice·that·if·changing·the·configuration·of·the·handler·in·runtime,·the·<code·class="inline">type</code>, | 187 | <a·href="logger_chapter.html#overload_protection"><code·class="inline">User's·Guide</code></a>.</p><p>Notice·that·if·changing·the·configuration·of·the·handler·in·runtime,·the·<code·class="inline">type</code>, |
| 188 | <code·class="inline">file</code>,·or·<code·class="inline">modes</code>·parameters·must·not·be·modified.</p><p>Example·of·adding·a·standard·handler:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">logger</span><span·class="p">:</span><span·class="nf">add_handler</span><span·class="p"·data-group-id=" | 188 | <code·class="inline">file</code>,·or·<code·class="inline">modes</code>·parameters·must·not·be·modified.</p><p>Example·of·adding·a·standard·handler:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">logger</span><span·class="p">:</span><span·class="nf">add_handler</span><span·class="p"·data-group-id="5888956977-1">(</span><span·class="ss">my_standard_h</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">logger_std_h</span><span·class="p">,</span><span·class="w"> |
| 189 | ···················</span><span·class="p"·data-group-id=" | 189 | ···················</span><span·class="p"·data-group-id="5888956977-2">#{</span><span·class="ss">config</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="5888956977-3">#{</span><span·class="ss">file</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"./system_info.log"</span><span·class="p">,</span><span·class="w"> |
| 190 | ·································</span><span·class="ss">filesync_repeat_interval</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="mi">1000</span><span·class="p"·data-group-id=" | 190 | ·································</span><span·class="ss">filesync_repeat_interval</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="mi">1000</span><span·class="p"·data-group-id="5888956977-3">}</span><span·class="p"·data-group-id="5888956977-2">}</span><span·class="p"·data-group-id="5888956977-1">)</span><span·class="p">.</span></code></pre><p>To·set·the·default·handler,·that·starts·initially·with·the·Kernel·application, |
| 191 | to·log·to·file·instead·of·<a·href="../../../../lib/stdlib-7.0/doc/html/io.html#t:standard_io/0"><code·class="inline">standard_io</code></a>,·change·the | 191 | to·log·to·file·instead·of·<a·href="../../../../lib/stdlib-7.0/doc/html/io.html#t:standard_io/0"><code·class="inline">standard_io</code></a>,·change·the |
| 192 | Kernel·default·logger·configuration.·Example:</p><pre><code·class="text">erl·-kernel·logger·'[{handler,default,logger_std_h, | 192 | Kernel·default·logger·configuration.·Example:</p><pre><code·class="text">erl·-kernel·logger·'[{handler,default,logger_std_h, |
| 193 | ······················#{config·=>·#{file·=>·"./log.log"}}}]'</code></pre><p>An·example·of·how·to·replace·the·standard·handler·with·a·disk_log·handler·at | 193 | ······················#{config·=>·#{file·=>·"./log.log"}}}]'</code></pre><p>An·example·of·how·to·replace·the·standard·handler·with·a·disk_log·handler·at |
| 194 | startup·is·found·in·the·<a·href="logger_disk_log_h.html"><code·class="inline">logger_disk_log_h</code></a>·manual.</p><h2·id="module-see-also"·class="section-heading"> | 194 | startup·is·found·in·the·<a·href="logger_disk_log_h.html"><code·class="inline">logger_disk_log_h</code></a>·manual.</p><h2·id="module-see-also"·class="section-heading"> |
| 195 | ··<a·href="#module-see-also"·class="hover-link"> | 195 | ··<a·href="#module-see-also"·class="hover-link"> |
| 196 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 196 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 197 | ··</a> | 197 | ··</a> |
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| 288 | ······<p·class="built-using"> | 288 | ······<p·class="built-using"> |
| 289 | ········Built·using | 289 | ········Built·using |
| 290 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 290 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 291 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 291 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 292 | ······</p> | 292 | ······</p> |
| 293 | <p>Copyright·©·1996-202 | 293 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 294 | ····</footer> | 294 | ····</footer> |
| 295 | ··</div> | 295 | ··</div> |
| 296 | </main> | 296 | </main> |
| 297 | </div> | 297 | </div> |
| 298 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 298 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 299 | ··<script> | 299 | ··<script> |
| 300 | ··let·initialized·=·false; | 300 | ··let·initialized·=·false; |
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| 553 | ··········<pre·translate="no"><span·class="attribute">-type</span>·ifaddrs_filter_fun()·::·fun((<a·href="#t:ifaddrs/0">ifaddrs</a>())·->·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:boolean/0">boolean</a>()).</pre> | 553 | ··········<pre·translate="no"><span·class="attribute">-type</span>·ifaddrs_filter_fun()·::·fun((<a·href="#t:ifaddrs/0">ifaddrs</a>())·->·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:boolean/0">boolean</a>()).</pre> |
| 554 | ······</div> | 554 | ······</div> |
| 555 | <p>Interface·address·filtering·selector·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:function/0"><code·class="inline">function/0</code></a>.</p><p>For·each·<code·class="inline">ifaddrs</code>·entry,·return·either·<code·class="inline">true</code>·to·keep·the·entry | 555 | <p>Interface·address·filtering·selector·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:function/0"><code·class="inline">function/0</code></a>.</p><p>For·each·<code·class="inline">ifaddrs</code>·entry,·return·either·<code·class="inline">true</code>·to·keep·the·entry |
| 556 | or·<code·class="inline">false</code>·to·discard·the·entry.</p><p>For·example,·to·get·an·interface·list·which·only·contains | 556 | or·<code·class="inline">false</code>·to·discard·the·entry.</p><p>For·example,·to·get·an·interface·list·which·only·contains |
| 557 | non-<code·class="inline">loopback</code>·<code·class="inline">inet</code>·interfaces:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">net</span><span·class="p">:</span><span·class="nf">getifaddrs</span><span·class="p"·data-group-id=" | 557 | non-<code·class="inline">loopback</code>·<code·class="inline">inet</code>·interfaces:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">net</span><span·class="p">:</span><span·class="nf">getifaddrs</span><span·class="p"·data-group-id="8803289370-1">(</span><span·class="w"> |
| 558 | ····</span><span·class="nf">fun</span><span·class="w">·</span><span·class="p"·data-group-id=" | 558 | ····</span><span·class="nf">fun</span><span·class="w">·</span><span·class="p"·data-group-id="8803289370-2">(</span><span·class="p"·data-group-id="8803289370-3">#{</span><span·class="w">·</span><span·class="ss">addr</span><span·class="w">··</span><span·class="p">:=</span><span·class="w">·</span><span·class="p"·data-group-id="8803289370-4">#{</span>[·...·truncated·by·diffoscope;·len:·172,·SHA:·5858487cce28c890837e5f58c045039c060e4ff5088e1fd733ade42a086a4fe5·...·]-4">}</span><span·class="p">,</span><span·class="w"> |
| 559 | ············</span><span·class="ss">flags</span><span·class="w">·</span><span·class="p">:=</span><span·class="w">·</span><span·class="n">Flags</span><span·class="p"·data-group-id=" | 559 | ············</span><span·class="ss">flags</span><span·class="w">·</span><span·class="p">:=</span><span·class="w">·</span><span·class="n">Flags</span><span·class="p"·data-group-id="8803289370-3">}</span><span·class="p"·data-group-id="8803289370-2">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 560 | ··········</span><span·class="ow">not</span><span·class="w">·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">member</span><span·class="p"·data-group-id=" | 560 | ··········</span><span·class="ow">not</span><span·class="w">·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">member</span><span·class="p"·data-group-id="8803289370-5">(</span><span·class="ss">loopback</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Flags</span><span·class="p"·data-group-id="8803289370-5">)</span><span·class="p">;</span><span·class="w"> |
| 561 | ········</span><span·class="p"·data-group-id=" | 561 | ········</span><span·class="p"·data-group-id="8803289370-6">(</span><span·class="p">_</span><span·class="p"·data-group-id="8803289370-6">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 562 | ··········</span><span·class="ss">false</span><span·class="w"> | 562 | ··········</span><span·class="ss">false</span><span·class="w"> |
| 563 | ····</span><span·class="k">end</span><span·class="p"·data-group-id=" | 563 | ····</span><span·class="k">end</span><span·class="p"·data-group-id="8803289370-1">)</span><span·class="p">.</span></code></pre> |
| 564 | ··</section> | 564 | ··</section> |
| 565 | </section> | 565 | </section> |
| 566 | <section·class="detail"·id="t:ifaddrs_filter_map/0"> | 566 | <section·class="detail"·id="t:ifaddrs_filter_map/0"> |
| 567 | ··<div·class="detail-header"> | 567 | ··<div·class="detail-header"> |
| 568 | ····<a·href="#t:ifaddrs_filter_map/0"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·type"> | 568 | ····<a·href="#t:ifaddrs_filter_map/0"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·type"> |
| 569 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 569 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
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| 1350 | ······<p·class="built-using"> | 1350 | ······<p·class="built-using"> |
| 1351 | ········Built·using | 1351 | ········Built·using |
| 1352 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1352 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1353 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1353 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1354 | ······</p> | 1354 | ······</p> |
| 1355 | <p>Copyright·©·1996-202 | 1355 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1356 | ····</footer> | 1356 | ····</footer> |
| 1357 | ··</div> | 1357 | ··</div> |
| 1358 | </main> | 1358 | </main> |
| 1359 | </div> | 1359 | </div> |
| 1360 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1360 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1361 | ··<script> | 1361 | ··<script> |
| 1362 | ··let·initialized·=·false; | 1362 | ··let·initialized·=·false; |
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| 475 | ···················Name·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:string/0">string</a>(), | 475 | ···················Name·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:string/0">string</a>(), |
| 476 | ···················Port·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:non_neg_integer/0">non_neg_integer</a>(), | 476 | ···················Port·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:non_neg_integer/0">non_neg_integer</a>(), |
| 477 | ···················Reason·::·address·|·<a·href="file.html#t:posix/0">file:posix</a>().</pre> | 477 | ···················Reason·::·address·|·<a·href="file.html#t:posix/0">file:posix</a>().</pre> |
| 478 | ······</div> | 478 | ······</div> |
| 479 | <p>Returns·the·names·and·associated·port·numbers·of·the·Erlang·nodes·that·<code·class="inline">epmd</code> | 479 | <p>Returns·the·names·and·associated·port·numbers·of·the·Erlang·nodes·that·<code·class="inline">epmd</code> |
| 480 | registered·at·the·specified·host.</p><p>Similar·to·<code·class="inline">epmd·-names</code>,·see·<a·href="../../../../erts-16.0/doc/html/epmd_cmd.html"><code·class="inline">erts:epmd</code></a>.</p><p>Returns·<code·class="inline">{error,·address}</code>·if·<code·class="inline">epmd</code>·is·not·operational.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">(arne@dunn)1>·</span><span·class="nc">net_adm</span><span·class="p">:</span><span·class="nf">names</span><span·class="p"·data-group-id=" | 480 | registered·at·the·specified·host.</p><p>Similar·to·<code·class="inline">epmd·-names</code>,·see·<a·href="../../../../erts-16.0/doc/html/epmd_cmd.html"><code·class="inline">erts:epmd</code></a>.</p><p>Returns·<code·class="inline">{error,·address}</code>·if·<code·class="inline">epmd</code>·is·not·operational.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">(arne@dunn)1>·</span><span·class="nc">net_adm</span><span·class="p">:</span><span·class="nf">names</span><span·class="p"·data-group-id="7318524011-1">(</span><span·class="p"·data-group-id="7318524011-1">)</span><span·class="p">.</span><span·class="w"> |
| 481 | </span><span·class="p"·data-group-id=" | 481 | </span><span·class="p"·data-group-id="7318524011-2">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="p"·data-group-id="7318524011-3">[</span><span·class="p"·data-group-id="7318524011-4">{</span><span·class="s">"arne"</span><span·class="p">,</span><span·class="mi[·...·truncated·by·diffoscope;·len:·161,·SHA:·713d896f1588974e57ff248c5fa67d751a8a6cdca79955fab62f780776ba6c25·...·]-2">}</span></code></pre> |
| 482 | ··</section> | 482 | ··</section> |
| 483 | </section> | 483 | </section> |
| 484 | <section·class="detail"·id="ping/1"> | 484 | <section·class="detail"·id="ping/1"> |
| 485 | ··<div·class="detail-header"> | 485 | ··<div·class="detail-header"> |
| 486 | ····<a·href="#ping/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 486 | ····<a·href="#ping/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 487 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 487 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 642, 15 lines modified | Offset 642, 15 lines modified | ||
| 642 | ······<p·class="built-using"> | 642 | ······<p·class="built-using"> |
| 643 | ········Built·using | 643 | ········Built·using |
| 644 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 644 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 645 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 645 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 646 | ······</p> | 646 | ······</p> |
| 647 | <p>Copyright·©·1996-202 | 647 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 648 | ····</footer> | 648 | ····</footer> |
| 649 | ··</div> | 649 | ··</div> |
| 650 | </main> | 650 | </main> |
| 651 | </div> | 651 | </div> |
| 652 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 652 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 653 | ··<script> | 653 | ··<script> |
| 654 | ··let·initialized·=·false; | 654 | ··let·initialized·=·false; |
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| 128 | ····<section·id="moduledoc"> | 128 | ····<section·id="moduledoc"> |
| 129 | <p>Erlang·networking·kernel.</p><p>The·net·kernel·is·a·system·process,·registered·as·<code·class="inline">net_kernel</code>,·which·must·be | 129 | <p>Erlang·networking·kernel.</p><p>The·net·kernel·is·a·system·process,·registered·as·<code·class="inline">net_kernel</code>,·which·must·be |
| 130 | operational·for·distributed·Erlang·to·work.·The·purpose·of·this·process·is·to | 130 | operational·for·distributed·Erlang·to·work.·The·purpose·of·this·process·is·to |
| 131 | implement·parts·of·the·BIFs·<a·href="../../../../erts-16.0/doc/html/erlang.html#spawn/4"><code·class="inline">spawn/4</code></a>·and | 131 | implement·parts·of·the·BIFs·<a·href="../../../../erts-16.0/doc/html/erlang.html#spawn/4"><code·class="inline">spawn/4</code></a>·and |
| 132 | <a·href="../../../../erts-16.0/doc/html/erlang.html#spawn_link/4"><code·class="inline">spawn_link/4</code></a>,·and·to·provide·monitoring·of·the·network.</p><p>An·Erlang·node·is·started·using·command-line·flag·<code·class="inline">-name</code>·or·<code·class="inline">-sname</code>:</p><pre><code·class="text">$·erl·-sname·foobar</code></pre><p>It·is·also·possible·to·call·<a·href="#start/2"><code·class="inline">net_kernel:start(foobar,·#{})</code></a> | 132 | <a·href="../../../../erts-16.0/doc/html/erlang.html#spawn_link/4"><code·class="inline">spawn_link/4</code></a>,·and·to·provide·monitoring·of·the·network.</p><p>An·Erlang·node·is·started·using·command-line·flag·<code·class="inline">-name</code>·or·<code·class="inline">-sname</code>:</p><pre><code·class="text">$·erl·-sname·foobar</code></pre><p>It·is·also·possible·to·call·<a·href="#start/2"><code·class="inline">net_kernel:start(foobar,·#{})</code></a> |
| 133 | directly·from·the·normal·Erlang·shell·prompt:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">net_kernel</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id=" | 133 | directly·from·the·normal·Erlang·shell·prompt:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">net_kernel</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id="7958247690-1">(</span><span·class="ss">foobar</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="7958247690-2">#{</span><span·class="ss">name_domain</span><span·class="w">·</span><span·class="p">=></span><span·class="w"[·...·truncated·by·diffoscope;·len:·137,·SHA:·94ab623186f6092bd064e7508acb7c608a4232d6f0ce4c285172f8ede29d38d0·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 134 | </span><span·class="p"·data-group-id=" | 134 | </span><span·class="p"·data-group-id="7958247690-3">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="o"><</span><span·class="mf">0.64</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="p"·data-group-id="7958247690-3">}</span><span·class="w"> |
| 135 | </span><span·class="p"·data-group-id=" | 135 | </span><span·class="p"·data-group-id="7958247690-4">(</span><span·class="ss">foobar@gringotts</span><span·class="p"·data-group-id="7958247690-4">)</span><span·class="mi">2</span><span·class="o">></span></code></pre><p>If·the·node·is·started·with·command-line·flag·<code·class="inline">-sname</code>,·the·node·name·is |
| 136 | <code·class="inline">foobar@Host</code>,·where·<code·class="inline">Host</code>·is·the·short·name·of·the·host·(not·the·fully | 136 | <code·class="inline">foobar@Host</code>,·where·<code·class="inline">Host</code>·is·the·short·name·of·the·host·(not·the·fully |
| 137 | qualified·domain·name).·If·started·with·flag·<code·class="inline">-name</code>,·the·node·name·is | 137 | qualified·domain·name).·If·started·with·flag·<code·class="inline">-name</code>,·the·node·name·is |
| 138 | <code·class="inline">foobar@Host</code>,·where·<code·class="inline">Host</code>·is·the·fully·qualified·domain·name.·For·more | 138 | <code·class="inline">foobar@Host</code>,·where·<code·class="inline">Host</code>·is·the·fully·qualified·domain·name.·For·more |
| 139 | information,·see·<a·href="../../../../erts-16.0/doc/html/erl_cmd.html"><code·class="inline">erl</code></a>.</p><p>Normally,·connections·are·established·automatically·when·another·node·is | 139 | information,·see·<a·href="../../../../erts-16.0/doc/html/erl_cmd.html"><code·class="inline">erl</code></a>.</p><p>Normally,·connections·are·established·automatically·when·another·node·is |
| 140 | referenced.·This·functionality·can·be·disabled·by·setting·Kernel·configuration | 140 | referenced.·This·functionality·can·be·disabled·by·setting·Kernel·configuration |
| 141 | parameter·<code·class="inline">dist_auto_connect</code>·to·<code·class="inline">never</code>,·see·<a·href="kernel_app.html"><code·class="inline">kernel(6)</code></a>.·In | 141 | parameter·<code·class="inline">dist_auto_connect</code>·to·<code·class="inline">never</code>,·see·<a·href="kernel_app.html"><code·class="inline">kernel(6)</code></a>.·In |
| 142 | this·case,·connections·must·be·established·explicitly·by·calling | 142 | this·case,·connections·must·be·established·explicitly·by·calling |
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| 690 | node·through·the·newly·established·connection.</li><li><code·class="inline">nodedown</code>·messages·are·delivered·after·all·the·signals·from·the·remote·node | 690 | node·through·the·newly·established·connection.</li><li><code·class="inline">nodedown</code>·messages·are·delivered·after·all·the·signals·from·the·remote·node |
| 691 | over·the·connection·have·been·delivered.</li><li><code·class="inline">nodeup</code>·messages·are·delivered·after·the·corresponding·node·appears·in | 691 | over·the·connection·have·been·delivered.</li><li><code·class="inline">nodeup</code>·messages·are·delivered·after·the·corresponding·node·appears·in |
| 692 | results·from·<code·class="inline">erlang:nodes()</code>.</li><li><code·class="inline">nodedown</code>·messages·are·delivered·after·the·corresponding·node·has·disappeared | 692 | results·from·<code·class="inline">erlang:nodes()</code>.</li><li><code·class="inline">nodedown</code>·messages·are·delivered·after·the·corresponding·node·has·disappeared |
| 693 | in·results·from·<code·class="inline">erlang:nodes()</code>.</li><li>As·of·OTP·23.0,·a·<code·class="inline">nodedown</code>·message·for·a·connection·being·taken·down·will·be | 693 | in·results·from·<code·class="inline">erlang:nodes()</code>.</li><li>As·of·OTP·23.0,·a·<code·class="inline">nodedown</code>·message·for·a·connection·being·taken·down·will·be |
| 694 | delivered·before·a·<code·class="inline">nodeup</code>·message·due·to·a·new·connection·to·the·same·node. | 694 | delivered·before·a·<code·class="inline">nodeup</code>·message·due·to·a·new·connection·to·the·same·node. |
| 695 | Prior·to·OTP·23.0,·this·was·not·guaranteed·to·be·the·case.</li></ul><p>The·format·of·the·node·status·change·messages·depends·on·<code·class="inline">Options</code>.·If·<code·class="inline">Options</code> | 695 | Prior·to·OTP·23.0,·this·was·not·guaranteed·to·be·the·case.</li></ul><p>The·format·of·the·node·status·change·messages·depends·on·<code·class="inline">Options</code>.·If·<code·class="inline">Options</code> |
| 696 | is·the·empty·list·or·if·<a·href="#monitor_nodes/1"><code·class="inline">net_kernel:monitor_nodes/1</code></a>·is·called,·the·format·is·as | 696 | is·the·empty·list·or·if·<a·href="#monitor_nodes/1"><code·class="inline">net_kernel:monitor_nodes/1</code></a>·is·called,·the·format·is·as |
| 697 | follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 697 | follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="5617484056-1">{</span><span·class="ss">nodeup</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Node</span><span·class="p"·data-group-id="5617484056-1">}</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><spa[·...·truncated·by·diffoscope;·len:·197,·SHA:·5f6449f96323b7e299666e5f65e5492358b5f15190306a509bfb1e330fe52bc4·...·]-2">}</span><span·class="w"> |
| 698 | ··</span><span·class="n">Node</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">node</span><span·class="p"·data-group-id=" | 698 | ··</span><span·class="n">Node</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">node</span><span·class="p"·data-group-id="5617484056-3">(</span><span·class="p"·data-group-id="5617484056-3">)</span></code></pre><p>When·<code·class="inline">Options</code>·is·the·empty·map·or·empty·list,·the·caller·will·only·subscribe |
| 699 | for·status·change·messages·for·visible·nodes.·That·is,·only·nodes·that·appear·in | 699 | for·status·change·messages·for·visible·nodes.·That·is,·only·nodes·that·appear·in |
| 700 | the·result·of·<a·href="../../../../erts-16.0/doc/html/erlang.html#nodes/0"><code·class="inline">erlang:nodes/0</code></a>.</p><p>If·<code·class="inline">Options</code>·equals·anything·other·than·the·empty·list,·the·format·of·the·status | 700 | the·result·of·<a·href="../../../../erts-16.0/doc/html/erlang.html#nodes/0"><code·class="inline">erlang:nodes/0</code></a>.</p><p>If·<code·class="inline">Options</code>·equals·anything·other·than·the·empty·list,·the·format·of·the·status |
| 701 | change·messages·is·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 701 | change·messages·is·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="1643358782-1">{</span><span·class="ss">nodeup</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Node</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Info</span><span·class="p"·data-group-id="1643358782-1">}</span><[·...·truncated·by·diffoscope;·len:·347,·SHA:·b7953f9693c717b05eedcd79bfe99bfdafe23be48e0be5e999ad5b7bd6bff655·...·]-2">}</span><span·class="w"> |
| 702 | ··</span><span·class="n">Node</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">node</span><span·class="p"·data-group-id=" | 702 | ··</span><span·class="n">Node</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">node</span><span·class="p"·data-group-id="1643358782-3">(</span><span·class="p"·data-group-id="1643358782-3">)</span><span·class="w"> |
| 703 | ··</span><span·class="n">Info</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 703 | ··</span><span·class="n">Info</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="1643358782-4">#{</span><span·class="n">Tag</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="n">Val</span><span·class="p"·data-group-id="1643358782-4">}</span><span·class="w">·</span><span·class="p">|</span><spa[·...·truncated·by·diffoscope;·len:·320,·SHA:·b8ec5ee9823680b59d4c7b6d3a6fcc257a1c622b1c04e5ccc0f11997f23aa4a5·...·]-5">]</span></code></pre><p><code·class="inline">Info</code>·is·either·a·map·or·a·list·of·2-tuples.·Its·content·depends·on·<code·class="inline">Options</code>. |
| 704 | If·<code·class="inline">Options</code>·is·a·map,·<code·class="inline">Info</code>·will·also·be·a·map.·If·<code·class="inline">Options</code>·is·a·list,·<code·class="inline">Info</code> | 704 | If·<code·class="inline">Options</code>·is·a·map,·<code·class="inline">Info</code>·will·also·be·a·map.·If·<code·class="inline">Options</code>·is·a·list,·<code·class="inline">Info</code> |
| 705 | will·also·be·a·list.</p><p>When·<code·class="inline">Options</code>·is·a·map,·currently·the·following·associations·are·allowed:</p><ul><li><p><strong><code·class="inline">connection_id·=>·boolean()</code></strong>·-·If·the·value·of·the·association·equals | 705 | will·also·be·a·list.</p><p>When·<code·class="inline">Options</code>·is·a·map,·currently·the·following·associations·are·allowed:</p><ul><li><p><strong><code·class="inline">connection_id·=>·boolean()</code></strong>·-·If·the·value·of·the·association·equals |
| 706 | <code·class="inline">true</code>,·a·<code·class="inline">connection_id·=>·ConnectionId</code>·association·will·be·included·in·the | 706 | <code·class="inline">true</code>,·a·<code·class="inline">connection_id·=>·ConnectionId</code>·association·will·be·included·in·the |
| 707 | <code·class="inline">Info</code>·map·where·<code·class="inline">ConnectionId</code>·is·the·connection·identifier·of·the·connection | 707 | <code·class="inline">Info</code>·map·where·<code·class="inline">ConnectionId</code>·is·the·connection·identifier·of·the·connection |
| 708 | coming·up·or·going·down.·For·more·info·about·this·connection·identifier·see | 708 | coming·up·or·going·down.·For·more·info·about·this·connection·identifier·see |
| 709 | the·documentation·of·<a·href="../../../../erts-16.0/doc/html/erlang.html#connection_id">erlang:nodes/2</a>.</p></li><li><p><strong><code·class="inline">node_type·=>·NodeType</code></strong>·-·Valid·values·for·<code·class="inline">NodeType</code>:</p><ul><li><p><strong><code·class="inline">visible</code></strong>·-·Subscribe·to·node·status·change·messages·for·visible·nodes | 709 | the·documentation·of·<a·href="../../../../erts-16.0/doc/html/erlang.html#connection_id">erlang:nodes/2</a>.</p></li><li><p><strong><code·class="inline">node_type·=>·NodeType</code></strong>·-·Valid·values·for·<code·class="inline">NodeType</code>:</p><ul><li><p><strong><code·class="inline">visible</code></strong>·-·Subscribe·to·node·status·change·messages·for·visible·nodes |
| 710 | only.·The·association·<code·class="inline">node_type·=>·visible</code>·will·be·included·in·the·<code·class="inline">Info</code> | 710 | only.·The·association·<code·class="inline">node_type·=>·visible</code>·will·be·included·in·the·<code·class="inline">Info</code> |
| Offset 730, 31 lines modified | Offset 730, 31 lines modified | ||
| 730 | only.·The·tuple·<code·class="inline">{node_type,·hidden}</code>·will·be·included·in·the·<code·class="inline">Info</code>·list.</p></li><li><p><strong><code·class="inline">all</code></strong>·-·Subscribe·to·node·status·change·messages·for·both·visible·and | 730 | only.·The·tuple·<code·class="inline">{node_type,·hidden}</code>·will·be·included·in·the·<code·class="inline">Info</code>·list.</p></li><li><p><strong><code·class="inline">all</code></strong>·-·Subscribe·to·node·status·change·messages·for·both·visible·and |
| 731 | hidden·nodes.·The·tuple·<code·class="inline">{node_type,·visible·|·hidden}</code>·will·be·included·in | 731 | hidden·nodes.·The·tuple·<code·class="inline">{node_type,·visible·|·hidden}</code>·will·be·included·in |
| 732 | the·<code·class="inline">Info</code>·list.</p></li></ul><p>If·no·<code·class="inline">{node_type,·NodeType}</code>·option·has·been·given.·The·caller·will·subscribe | 732 | the·<code·class="inline">Info</code>·list.</p></li></ul><p>If·no·<code·class="inline">{node_type,·NodeType}</code>·option·has·been·given.·The·caller·will·subscribe |
| 733 | for·status·change·messages·for·visible·nodes·only,·but·<em>no</em> | 733 | for·status·change·messages·for·visible·nodes·only,·but·<em>no</em> |
| 734 | <code·class="inline">{node_type,·visible}</code>·tuple·will·be·included·in·the·<code·class="inline">Info</code>·list.</p></li><li><p><strong><code·class="inline">nodedown_reason</code></strong>·-·The·tuple·<code·class="inline">{nodedown_reason,·Reason}</code>·will·be·included | 734 | <code·class="inline">{node_type,·visible}</code>·tuple·will·be·included·in·the·<code·class="inline">Info</code>·list.</p></li><li><p><strong><code·class="inline">nodedown_reason</code></strong>·-·The·tuple·<code·class="inline">{nodedown_reason,·Reason}</code>·will·be·included |
| 735 | in·the·<code·class="inline">Info</code>·list·for·<code·class="inline">nodedown</code>·messages.</p><p>See·the·documentation·of·the | 735 | in·the·<code·class="inline">Info</code>·list·for·<code·class="inline">nodedown</code>·messages.</p><p>See·the·documentation·of·the |
| 736 | <a·href="net_kernel.html#nodedown_reasons"><code·class="inline">nodedown_reason·=>·boolean()</code></a>·association | 736 | <a·href="net_kernel.html#nodedown_reasons"><code·class="inline">nodedown_reason·=>·boolean()</code></a>·association |
| 737 | above·for·information·about·possible·<code·class="inline">Reason</code>·values.</p></li></ul><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">(a@localhost)1>·</span><span·class="nc">net_kernel</span><span·class="p">:</span><span·class="nf">monitor_nodes</span><span·class="p"·data-group-id=" | 737 | above·for·information·about·possible·<code·class="inline">Reason</code>·values.</p></li></ul><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">(a@localhost)1>·</span><span·class="nc">net_kernel</span><span·class="p">:</span><span·class="nf">monitor_nodes</span><span·class="p"·data-group-id="8672586079-1">(</span><span·class="ss">true</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8672586079-2">#{</span><span·class="ss">connection_id</span><span·class="p">=></span><span·class="ss">true</span><span·class[·...·truncated·by·diffoscope;·len:·362,·SHA:·db6f5cbd8ee2cdc3d30c8af840738cafee3479270efeff3444a194638bd73e1c·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 738 | </span><span·class="nf">ok</span><span·class="w"> | 738 | </span><span·class="nf">ok</span><span·class="w"> |
| 739 | </span><span·class="p"·data-group-id=" | 739 | </span><span·class="p"·data-group-id="8672586079-3">(</span><span·class="ss">a@localhost</span><span·class="p"·data-group-id="8672586079-3">)</span><span·class="mi">2</span><span·class="o">></span><span·class="w">·</span><span·class="nf">flush</span><span·class="p"·data-group-id="8672586079[·...·truncated·by·diffoscope;·len:·53,·SHA:·c5fcde21dfc15f5812968f5bcebc6f8f2b253428b70d32e460e956ca1e4fcbc2·...·]-4">)</span><span·class="p">.</span><span·class="w"> |
| 740 | </span><span·class="n">Shell</span><span·class="w">·</span><span·class="ss">got</span><span·class="w">·</span><span·class="p"·data-group-id=" | 740 | </span><span·class="n">Shell</span><span·class="w">·</span><span·class="ss">got</span><span·class="w">·</span><span·class="p"·data-group-id="8672586079-5">{</span><span·class="ss">nodeup</span><span·class="p">,</span><span·class="ss">b@localhost</span><span·class="p">,</span><span·class="w"> |
| 741 | ··················</span><span·class="p"·data-group-id=" | 741 | ··················</span><span·class="p"·data-group-id="8672586079-6">#{</span><span·class="ss">connection_id</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="mi">3067552</span><span·class="p">,</span><span·class="ss">node_type</span><span·class="w">·</span><span·cl[·...·truncated·by·diffoscope;·len:·169,·SHA:·068faa9bb06feeb9a4b9f1d36120c0710db59f4716f7405c6f79dee328fe87cc·...·]-5">}</span><span·class="w"> |
| 742 | </span><span·class="n">Shell</span><span·class="w">·</span><span·class="ss">got</span><span·class="w">·</span><span·class="p"·data-group-id=" | 742 | </span><span·class="n">Shell</span><span·class="w">·</span><span·class="ss">got</span><span·class="w">·</span><span·class="p"·data-group-id="8672586079-7">{</span><span·class="ss">nodeup</span><span·class="p">,</span><span·class="ss">c@localhost</span><span·class="p">,</span><span·class="w"> |
| 743 | ··················</span><span·class="p"·data-group-id=" | 743 | ··················</span><span·class="p"·data-group-id="8672586079-8">#{</span><span·class="ss">connection_id</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="mi">13892107</span><span·class="p">,</span><span·class="ss">node_type</span><span·class="w">·</span><span·c[·...·truncated·by·diffoscope;·len:·169,·SHA:·a47a1bb086b5ca6a9db3b3b4b72bf11327fefea1a25708c967de242aa8aeb715·...·]-7">}</span><span·class="w"> |
| 744 | </span><span·class="n">Shell</span><span·class="w">·</span><span·class="ss">got</span><span·class="w">·</span><span·class="p"·data-group-id=" | 744 | </span><span·class="n">Shell</span><span·class="w">·</span><span·class="ss">got</span><span·class="w">·</span><span·class="p"·data-group-id="8672586079-9">{</span><span·class="ss">nodedown</span><span·class="p">,</span><span·class="ss">b@localhost</span><span·class="p">,</span><span·class="w"> |
| 745 | ····················</span><span·class="p"·data-group-id=" | 745 | ····················</span><span·class="p"·data-group-id="8672586079-10">#{</span><span·class="ss">connection_id</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="mi">3067552</span><span·class="p">,</span><span·class="ss">node_type</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">visible</span><span·class="p">,</span><span·class="w"> |
| 746 | ······················</span><span·class="ss">nodedown_reason</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">connection_closed</span><span·class="p"·data-group-id=" | 746 | ······················</span><span·class="ss">nodedown_reason</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">connection_closed</span><span·class="p"·data-group-id="8672586079-10">}</span><span·class="p"·data-group-id="8672586079-9">}</span><span·class="w"> |
| 747 | </span><span·class="n">Shell</span><span·class="w">·</span><span·class="ss">got</span><span·class="w">·</span><span·class="p"·data-group-id=" | 747 | </span><span·class="n">Shell</span><span·class="w">·</span><span·class="ss">got</span><span·class="w">·</span><span·class="p"·data-group-id="8672586079-11">{</span><span·class="ss">nodedown</span><span·class="p">,</span><span·class="ss">c@localhost</span><span·class="p">,</span><span·class="w"> |
| 748 | ····················</span><span·class="p"·data-group-id=" | 748 | ····················</span><span·class="p"·data-group-id="8672586079-12">#{</span><span·class="ss">connection_id</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="mi">13892107</span><span·class="p">,</span><span·class="ss">node_type</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">hidden</span><span·class="p">,</span><span·class="w"> |
| 749 | ······················</span><span·class="ss">nodedown_reason</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">net_tick_timeout</span><span·class="p"·data-group-id=" | 749 | ······················</span><span·class="ss">nodedown_reason</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">net_tick_timeout</span><span·class="p"·data-group-id="8672586079-12">}</span><span·class="p"·data-group-id="8672586079-11">}</span><span·class="w"> |
| 750 | </span><span·class="n">Shell</span><span·class="w">·</span><span·class="ss">got</span><span·class="w">·</span><span·class="p"·data-group-id=" | 750 | </span><span·class="n">Shell</span><span·class="w">·</span><span·class="ss">got</span><span·class="w">·</span><span·class="p"·data-group-id="8672586079-13">{</span><span·class="ss">nodeup</span><span·class="p">,</span><span·class="ss">b@localhost</span><span·class="p">,</span><span·class="w"> |
| 751 | ··················</span><span·class="p"·data-group-id=" | 751 | ··················</span><span·class="p"·data-group-id="8672586079-14">#{</span><span·class="ss">connection_id</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="mi">3067553</span><span·class="p">,</span><span·class="ss">node_type</span><span·class="w">·</span><span·c[·...·truncated·by·diffoscope;·len:·171,·SHA:·552d7c6214415877a0f19f52cc4a597c5d019f4d41df02fd1141b935fb2dcb83·...·]-13">}</span><span·class="w"> |
| 752 | </span><span·class="nf">ok</span><span·class="w"> | 752 | </span><span·class="nf">ok</span><span·class="w"> |
| 753 | </span><span·class="p"·data-group-id=" | 753 | </span><span·class="p"·data-group-id="8672586079-15">(</span><span·class="ss">a@localhost</span><span·class="p"·data-group-id="8672586079-15">)</span><span·class="mi">3</span><span·class="o">></span></code></pre> |
| 754 | ··</section> | 754 | ··</section> |
| 755 | </section> | 755 | </section> |
| 756 | <section·class="detail"·id="set_net_ticktime/1"> | 756 | <section·class="detail"·id="set_net_ticktime/1"> |
| 757 | ··<div·class="detail-header"> | 757 | ··<div·class="detail-header"> |
| 758 | ····<a·href="#set_net_ticktime/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 758 | ····<a·href="#set_net_ticktime/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 759 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 759 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 1024, 15 lines modified | Offset 1024, 15 lines modified | ||
| 1024 | ······<p·class="built-using"> | 1024 | ······<p·class="built-using"> |
| 1025 | ········Built·using | 1025 | ········Built·using |
| 1026 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1026 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1027 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1027 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1028 | ······</p> | 1028 | ······</p> |
| 1029 | <p>Copyright·©·1996-202 | 1029 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1030 | ····</footer> | 1030 | ····</footer> |
| 1031 | ··</div> | 1031 | ··</div> |
| 1032 | </main> | 1032 | </main> |
| 1033 | </div> | 1033 | </div> |
| 1034 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1034 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1035 | ··<script> | 1035 | ··<script> |
| 1036 | ··let·initialized·=·false; | 1036 | ··let·initialized·=·false; |
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| 140 | <ul><li><p>Fixed·an·issue·where·output·to·the·shell·would·not·print·the·prompt·on·a·new·line.</p><p>Own·Id:·OTP-19228·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8820"·title="">PR-8820</a></p></li><li><p>When·in·<a·href="../../../../lib/stdlib-7.0/doc/html/shell.html"><code·class="inline">shell</code></a>·is·in·<code·class="inline">-noshell</code>·mode,·and·in·<code·class="inline">latin1</code>·encoding·mode,·io·requests·in·latin1·encoding·will·not·be·translated·to·unicode·and·back·to·latin1.</p><p>Own·Id:·OTP-19296·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9013"·title="">PR-9013</a></p></li><li><p>Fixed·a·bug·where·a·composing·unicode·character·would·bind·to·a·character·not·available·to·the·user·and·deleting·that·character·would·cause·a·crash.</p><p>Own·Id:·OTP-19297·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9005"·title="">PR-9005</a></p></li><li><p>The·<a·href="../../../../erts-16.0/doc/html/erl_cmd.html#noshell"><code·class="inline">-noshell</code></a>·mode·has·been·updated·to·read·data·lazily·from·standard·input.·Before·this·fix·any·data·would·be·read·greedily·which·meant·that·Erlang·could·consume·data·not·meant·for·it.·It·also·meant·that·in·order·for·<a·href="../../../../lib/stdlib-7.0/doc/html/shell.html#start_interactive/0"><code·class="inline">shell:start_interactive/0</code></a>·to·work·on·Windows·an·API·that·did·not·support·reading·of·Unicode·characters·had·to·be·used.</p><p>Own·Id:·OTP-19313·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8962"·title="">PR-8962</a>,·<a·href="https://github.com/erlang/otp/issues/8113"·title="">GH-8113</a></p></li><li><p>The·Erlang·shell·no·longer·crashes·when·a·shell·prompt·ends·with·an·escape·sequence.</p><p>Own·Id:·OTP-19414·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9272"·title="">PR-9272</a></p></li><li><p><a·href="code.html#get_doc/1"><code·class="inline">code:get_doc/1</code></a>·now·works·for·cover-compiled·modules.</p><p>Own·Id:·OTP-19513·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9433"·title="">PR-9433</a></p></li><li><p>An·infinite·loop·in·CNAME·loop·detection·that·can·cause·Out·Of·Memory·has·been·fixed.··This·affected·CNAME·lookup·with·the·internal·DNS·resolver.</p><p>Own·Id:·OTP-19544·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9587"·title="">PR-9587</a>,·OTP-19545</p></li><li><p>The·internal·resolver·framework·has·been·fixed·to·wait·with·the·first·resolver·lookup·until·the·ERL_INETRC·environment·variable·has·been·applied.</p><p>Previously,·on·some·platform(s)·(Linux)·a·first·lookup·when·figuring·out·the·domain·name·was·always·placed·on·the·<code·class="inline">native</code>·resolver·even·if·ERL_INETRC·was·used·to·disable·it.</p><p>Own·Id:·OTP-19555·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9543"·title="">PR-9543</a></p></li><li><p>Fix·<a·href="logger.html#add_handler/3"><code·class="inline">logger:add_handler(default,·...)</code></a>·to·correctly·replay·events·generated·during·startup·when·the·default·logger·is·set·to·<code·class="inline">undefined</code>·in·<a·href="logger_chapter.html#kernel-configuration-parameters">logger's·configuration·parameters</a>.</p><p>Own·Id:·OTP-19588·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9595"·title="">PR-9595</a>,·<a·href="https://github.com/erlang/otp/issues/9436"·title="">GH-9436</a></p></li><li><p>Enhance·specs·of·timeout·for·improving·documentation·and·dialyzer·analysis.</p><p>Own·Id:·OTP-19604·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9574"·title="">PR-9574</a></p></li><li><p>Removed·the·default·values·for·SCTP·send·(sndbuf)·and·receive·(recbuf)·buffers.</p><p>Own·Id:·OTP-19627·Aux·Id:·OTP-19576,·<a·href="https://github.com/erlang/otp/issues/9722"·title="">GH-9722</a></p></li></ul><h3·id="improvements-and-new-features"·class="section-heading"> | 140 | <ul><li><p>Fixed·an·issue·where·output·to·the·shell·would·not·print·the·prompt·on·a·new·line.</p><p>Own·Id:·OTP-19228·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8820"·title="">PR-8820</a></p></li><li><p>When·in·<a·href="../../../../lib/stdlib-7.0/doc/html/shell.html"><code·class="inline">shell</code></a>·is·in·<code·class="inline">-noshell</code>·mode,·and·in·<code·class="inline">latin1</code>·encoding·mode,·io·requests·in·latin1·encoding·will·not·be·translated·to·unicode·and·back·to·latin1.</p><p>Own·Id:·OTP-19296·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9013"·title="">PR-9013</a></p></li><li><p>Fixed·a·bug·where·a·composing·unicode·character·would·bind·to·a·character·not·available·to·the·user·and·deleting·that·character·would·cause·a·crash.</p><p>Own·Id:·OTP-19297·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9005"·title="">PR-9005</a></p></li><li><p>The·<a·href="../../../../erts-16.0/doc/html/erl_cmd.html#noshell"><code·class="inline">-noshell</code></a>·mode·has·been·updated·to·read·data·lazily·from·standard·input.·Before·this·fix·any·data·would·be·read·greedily·which·meant·that·Erlang·could·consume·data·not·meant·for·it.·It·also·meant·that·in·order·for·<a·href="../../../../lib/stdlib-7.0/doc/html/shell.html#start_interactive/0"><code·class="inline">shell:start_interactive/0</code></a>·to·work·on·Windows·an·API·that·did·not·support·reading·of·Unicode·characters·had·to·be·used.</p><p>Own·Id:·OTP-19313·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8962"·title="">PR-8962</a>,·<a·href="https://github.com/erlang/otp/issues/8113"·title="">GH-8113</a></p></li><li><p>The·Erlang·shell·no·longer·crashes·when·a·shell·prompt·ends·with·an·escape·sequence.</p><p>Own·Id:·OTP-19414·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9272"·title="">PR-9272</a></p></li><li><p><a·href="code.html#get_doc/1"><code·class="inline">code:get_doc/1</code></a>·now·works·for·cover-compiled·modules.</p><p>Own·Id:·OTP-19513·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9433"·title="">PR-9433</a></p></li><li><p>An·infinite·loop·in·CNAME·loop·detection·that·can·cause·Out·Of·Memory·has·been·fixed.··This·affected·CNAME·lookup·with·the·internal·DNS·resolver.</p><p>Own·Id:·OTP-19544·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9587"·title="">PR-9587</a>,·OTP-19545</p></li><li><p>The·internal·resolver·framework·has·been·fixed·to·wait·with·the·first·resolver·lookup·until·the·ERL_INETRC·environment·variable·has·been·applied.</p><p>Previously,·on·some·platform(s)·(Linux)·a·first·lookup·when·figuring·out·the·domain·name·was·always·placed·on·the·<code·class="inline">native</code>·resolver·even·if·ERL_INETRC·was·used·to·disable·it.</p><p>Own·Id:·OTP-19555·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9543"·title="">PR-9543</a></p></li><li><p>Fix·<a·href="logger.html#add_handler/3"><code·class="inline">logger:add_handler(default,·...)</code></a>·to·correctly·replay·events·generated·during·startup·when·the·default·logger·is·set·to·<code·class="inline">undefined</code>·in·<a·href="logger_chapter.html#kernel-configuration-parameters">logger's·configuration·parameters</a>.</p><p>Own·Id:·OTP-19588·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9595"·title="">PR-9595</a>,·<a·href="https://github.com/erlang/otp/issues/9436"·title="">GH-9436</a></p></li><li><p>Enhance·specs·of·timeout·for·improving·documentation·and·dialyzer·analysis.</p><p>Own·Id:·OTP-19604·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9574"·title="">PR-9574</a></p></li><li><p>Removed·the·default·values·for·SCTP·send·(sndbuf)·and·receive·(recbuf)·buffers.</p><p>Own·Id:·OTP-19627·Aux·Id:·OTP-19576,·<a·href="https://github.com/erlang/otp/issues/9722"·title="">GH-9722</a></p></li></ul><h3·id="improvements-and-new-features"·class="section-heading"> |
| 141 | ··<a·href="#improvements-and-new-features"·class="hover-link"> | 141 | ··<a·href="#improvements-and-new-features"·class="hover-link"> |
| 142 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 142 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 143 | ··</a> | 143 | ··</a> |
| 144 | ··<span·class="text">Improvements·and·New·Features</span> | 144 | ··<span·class="text">Improvements·and·New·Features</span> |
| 145 | </h3> | 145 | </h3> |
| 146 | <ul><li><p><a·href="application.html#load/1"><code·class="inline">application:load/1</code></a>·slows·down·as·the·number·of·directories·in·the·code·path·increases·because·the·call·to·<a·href="code.html#where_is_file/1"><code·class="inline">code:where_is_file/1</code></a>·for·the·'.app'·file·must·scan·each·directory·for·the·app.·</p><p><code·class="inline">code_server</code>·maintains·a·cache·of·the·contents·of·directories·in·the·path.·Re-using·that·cache·when·searching·for·'.app'·files·in·<a·href="application.html#load/1"><code·class="inline">application:load/1</code></a>·may·improve·its·runtime,·especially·when·loading·multiple·applications.</p><p>Own·Id:·OTP-19194·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8078"·title="">PR-8078</a></p></li><li><p>The·<a·href="../../../../lib/ssh-5.3/doc/html/using_ssh.html#running-an-erlang-ssh-daemon"><code·class="inline">Erlang·SSH·daemon</code></a>·now·uses·the·same·backend·to·handle·multiline·functionality·as·the·Erlang·shell.</p><p>Own·Id:·OTP-19226·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8805"·title="">PR-8805</a></p></li><li><p>Added·support·for·<code·class="inline">SIGWINCH</code>,·<code·class="inline">SIGCONT</code>,·and·<code·class="inline">SIGINFO</code>·signals·to·<a·href="os.html#set_signal/2"><code·class="inline">os:set_signal/2</code></a>·where·available.</p><p>Own·Id:·OTP-19278·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8887"·title="">PR-8887</a>,·<a·href="https://github.com/erlang/otp/pull/8938"·title="">PR-8938</a></p></li><li><p>Add·<a·href="net_kernel.html#allowed/0"><code·class="inline">net_kernel:allowed/0</code></a>,·it·returns·a·list·of·nodes·that·are·explicitly·allowed·to·connect·to·the·node·by·calling | 146 | <ul><li><p><a·href="application.html#load/1"><code·class="inline">application:load/1</code></a>·slows·down·as·the·number·of·directories·in·the·code·path·increases·because·the·call·to·<a·href="code.html#where_is_file/1"><code·class="inline">code:where_is_file/1</code></a>·for·the·'.app'·file·must·scan·each·directory·for·the·app.·</p><p><code·class="inline">code_server</code>·maintains·a·cache·of·the·contents·of·directories·in·the·path.·Re-using·that·cache·when·searching·for·'.app'·files·in·<a·href="application.html#load/1"><code·class="inline">application:load/1</code></a>·may·improve·its·runtime,·especially·when·loading·multiple·applications.</p><p>Own·Id:·OTP-19194·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8078"·title="">PR-8078</a></p></li><li><p>The·<a·href="../../../../lib/ssh-5.3/doc/html/using_ssh.html#running-an-erlang-ssh-daemon"><code·class="inline">Erlang·SSH·daemon</code></a>·now·uses·the·same·backend·to·handle·multiline·functionality·as·the·Erlang·shell.</p><p>Own·Id:·OTP-19226·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8805"·title="">PR-8805</a></p></li><li><p>Added·support·for·<code·class="inline">SIGWINCH</code>,·<code·class="inline">SIGCONT</code>,·and·<code·class="inline">SIGINFO</code>·signals·to·<a·href="os.html#set_signal/2"><code·class="inline">os:set_signal/2</code></a>·where·available.</p><p>Own·Id:·OTP-19278·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8887"·title="">PR-8887</a>,·<a·href="https://github.com/erlang/otp/pull/8938"·title="">PR-8938</a></p></li><li><p>Add·<a·href="net_kernel.html#allowed/0"><code·class="inline">net_kernel:allowed/0</code></a>,·it·returns·a·list·of·nodes·that·are·explicitly·allowed·to·connect·to·the·node·by·calling |
| 147 | <a·href="net_kernel.html#allow/1"><code·class="inline">net_kernel:allow/1</code></a></p><p>Own·Id:·OTP-19287·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8207"·title="">PR-8207</a></p></li><li><p>Documentation·chunks·(EEP-48)·has·been·updated·to·include·the·following·reserved·metadata·fields:·<code·class="inline">behaviours</code>,·<code·class="inline">group</code>,·<code·class="inline">source_path</code>,·and·<code·class="inline">source_annos</code>.·The·compiler·has·also·been·updated·to·emit·this·metadata.·See·the·<a·href="eep48_chapter.html">EEP-48·documentation</a>·for·more·details.</p><p>Own·Id:·OTP-19306·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8945"·title="">PR-8945</a>,·<a·href="https://github.com/erlang/otp/pull/8975"·title="">PR-8975</a></p></li><li><p>The·<a·href="erpc.html#call/3"><code·class="inline">erpc:call/3</code></a>,·<a·href="erpc.html#call/5"><code·class="inline">erpc:call/5</code></a>,·<a·href="erpc.html#multicall/3"><code·class="inline">erpc:multicall/3</code></a>,·and·<a·href="erpc.html#multicall/5"><code·class="inline">erpc:multicall/5</code></a>·functions·now·also·accept·an·option·map·as·last·argument·containing·the·<code·class="inline">timeout</code>·and·<code·class="inline">always_spawn</code>·options.·The·<code·class="inline">always_spawn</code>·option·can·be·used·in·order·to·ensure·that·the·call·operation·will·use·a·newly·spawned·process·when·executing·the·remote·call.</p><p>Own·Id:·OTP-19343·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8642"·title="">PR-8642</a></p></li><li><p><a·href="https://www.erlang.org/eeps/eep-0069">EEP-69:·Nominal·Types</a>·has·been·implemented.·As·a·side·effect,·nominal·types·can·encode·opaque·types.·We·changed·all·opaque-handling·logic·and·improved·opaque·warnings·in·Dialyzer.</p><p>All·existing·Erlang·type·systems·are·structural:·two·types·are·seen·as·equivalent·if·their·structures·are·the·same.·Type·comparisons·are·based·on·the·structures·of·the·types,·not·on·how·the·user·explicitly·defines·them.·For·example,·in·the·following·example,·<code·class="inline">meter()</code>·and·<code·class="inline">foot()</code>·are·equivalent.·The·two·types·can·be·used·interchangeably.·Neither·of·them·differ·from·the·basic·type·<code·class="inline">integer()</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">type</span><span·class="w">·</span><span·class="nf">meter</span><span·class="p"·data-group-id=" | 147 | <a·href="net_kernel.html#allow/1"><code·class="inline">net_kernel:allow/1</code></a></p><p>Own·Id:·OTP-19287·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8207"·title="">PR-8207</a></p></li><li><p>Documentation·chunks·(EEP-48)·has·been·updated·to·include·the·following·reserved·metadata·fields:·<code·class="inline">behaviours</code>,·<code·class="inline">group</code>,·<code·class="inline">source_path</code>,·and·<code·class="inline">source_annos</code>.·The·compiler·has·also·been·updated·to·emit·this·metadata.·See·the·<a·href="eep48_chapter.html">EEP-48·documentation</a>·for·more·details.</p><p>Own·Id:·OTP-19306·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8945"·title="">PR-8945</a>,·<a·href="https://github.com/erlang/otp/pull/8975"·title="">PR-8975</a></p></li><li><p>The·<a·href="erpc.html#call/3"><code·class="inline">erpc:call/3</code></a>,·<a·href="erpc.html#call/5"><code·class="inline">erpc:call/5</code></a>,·<a·href="erpc.html#multicall/3"><code·class="inline">erpc:multicall/3</code></a>,·and·<a·href="erpc.html#multicall/5"><code·class="inline">erpc:multicall/5</code></a>·functions·now·also·accept·an·option·map·as·last·argument·containing·the·<code·class="inline">timeout</code>·and·<code·class="inline">always_spawn</code>·options.·The·<code·class="inline">always_spawn</code>·option·can·be·used·in·order·to·ensure·that·the·call·operation·will·use·a·newly·spawned·process·when·executing·the·remote·call.</p><p>Own·Id:·OTP-19343·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8642"·title="">PR-8642</a></p></li><li><p><a·href="https://www.erlang.org/eeps/eep-0069">EEP-69:·Nominal·Types</a>·has·been·implemented.·As·a·side·effect,·nominal·types·can·encode·opaque·types.·We·changed·all·opaque-handling·logic·and·improved·opaque·warnings·in·Dialyzer.</p><p>All·existing·Erlang·type·systems·are·structural:·two·types·are·seen·as·equivalent·if·their·structures·are·the·same.·Type·comparisons·are·based·on·the·structures·of·the·types,·not·on·how·the·user·explicitly·defines·them.·For·example,·in·the·following·example,·<code·class="inline">meter()</code>·and·<code·class="inline">foot()</code>·are·equivalent.·The·two·types·can·be·used·interchangeably.·Neither·of·them·differ·from·the·basic·type·<code·class="inline">integer()</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">type</span><span·class="w">·</span><span·class="nf">meter</span><span·class="p"·data-group-id="7009610800-1">(</span><span·class="p"·data-group-id="7009610800-1">)</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="7009610800-2">(</span><[·...·truncated·by·diffoscope;·len:·40,·SHA:·765e8144d38131b5da1affb7f5534ed4b4bff654c79378fbce8576372e82c5af·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 148 | </span><span·class="p">-</span><span·class="na">type</span><span·class="w">·</span><span·class="nf">foot</span><span·class="p"·data-group-id=" | 148 | </span><span·class="p">-</span><span·class="na">type</span><span·class="w">·</span><span·class="nf">foot</span><span·class="p"·data-group-id="7009610800-3">(</span><span·class="p"·data-group-id="7009610800-3">)</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="7009610800-4">(</span><[·...·truncated·by·diffoscope;·len:·1061,·SHA:·f629a90f8c6b9fc78966f97cb935f731b268607cc7751d3ded543b557b1f4021·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 149 | </span><span·class="p">-</span><span·class="na">nominal</span><span·class="w">·</span><span·class="nf">foot</span><span·class="p"·data-group-id=" | 149 | </span><span·class="p">-</span><span·class="na">nominal</span><span·class="w">·</span><span·class="nf">foot</span><span·class="p"·data-group-id="2048206893-3">(</span><span·class="p"·data-group-id="2048206893-3">)</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="2048206893-4">(</span><[·...·truncated·by·diffoscope;·len:·40,·SHA:·759a00d6796ab8aa9ecca4de198862c1b515274dd6a62e3080660f5b40d32639·...·]-4">)</span><span·class="p">.</span></code></pre><p>More·nominal·type-checking·rules·can·be·found·in·the·EEP.·It·is·worth·noting·that·most·work·for·adding·nominal·types·and·type-checking·is·in·<code·class="inline">erl_types.erl</code>.·The·rest·are·changes·that·removed·the·previous·opaque·type-checking,·and·added·an·improved·version·of·it·using·nominal·type-checking·with·reworked·warnings.</p><p>Backwards·compatibility·for·opaque·type-checking·is·not·preserved·by·this·PR.·Previous·opaque·warnings·can·appear·with·slightly·different·wordings.·A·new·kind·of·opaque·warning·<code·class="inline">opaque_union</code>·is·added,·together·with·a·Dialyzer·option·<code·class="inline">no_opaque_union</code>·to·turn·this·kind·of·warnings·off.</p><p>Own·Id:·OTP-19364·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9079"·title="">PR-9079</a></p></li><li><p>Improved·open·debug·for·gen_tcp_socket·(connect·and·listen)·and·gen_udp_socket·(open).</p><p>Own·Id:·OTP-19386</p></li><li><p><a·href="../../../../lib/stdlib-7.0/doc/html/io.html#t:standard_error/0"><code·class="inline">io:standard_error/0</code></a>·has·been·updated·to·write·via·a·NIF·API·instead·of·a·port.·This·allows·it·to·access·the·dirty-scheduler·pool·and·make·sure·that·writes·have·been·written·to·the·OSs·<code·class="inline">stderr</code>·when·<a·href="../../../../lib/stdlib-7.0/doc/html/io.html#format/3"><code·class="inline">io:format/3</code></a>·and·equivalent·return.</p><p>Own·Id:·OTP-19401·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9116"·title="">PR-9116</a></p></li><li><p>Added·the·option·<code·class="inline">exception_on_failure</code>·to·<a·href="os.html#cmd/2"><code·class="inline">os:cmd/2</code></a>·to·make·<a·href="os.html#cmd/2"><code·class="inline">os:cmd/2</code></a>·raise·an·exception·if·the·command·fails·to·execute.</p><p>Own·Id:·OTP-19404·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9082"·title="">PR-9082</a></p></li><li><p>A·<code·class="inline">socket</code>·option·<code·class="inline">{otp,select_read}</code>·has·been·added·that·enables·keeping·a·socket·in·the·VM·select/poll·set·between·calls·to·recv·functions.</p><p>This·increases·throughput·by·reducing·the·number·of·calls·to·said·functions.</p><p>Own·Id:·OTP-19451·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9344"·title="">PR-9344</a></p></li><li><p>Add·a·configure·chapter·to·the·socket·usage·guide</p><p>Own·Id:·OTP-19522·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9508"·title="">PR-9508</a></p></li><li><p>The·license·and·copyright·header·has·changed·format·to·include·an·<code·class="inline">SPDX-License-Identifier</code>.·At·the·same·time,·most·files·have·been·updated·to·follow·a·uniform·standard·for·license·headers.</p><p>Own·Id:·OTP-19575·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9670"·title="">PR-9670</a></p></li><li><p>Increase·the·default·inet-driver·buffer·size(s).·Also·introduce·kernel·parameters·for·UDP·and·SCTP·to·change·the·sizes·when·creating·(those)·sockets.</p><p>Own·Id:·OTP-19576</p></li><li><p>An··<strong>experimental</strong>·API·for·a·native·debugger·has·been·added.·The·main·components·are·the·following:</p><ul><li><p>A·new·compiler·option·<code·class="inline">beam_debug_info</code>·for·the·Erlang·compiler.·When·given,·most·optimizations·are·disabled·and·debug·information·suitable·for·the·native·debugger·are·added·to·generated·BEAM·files.</p></li><li><p>A·new·<code·class="inline">+D</code>·emulator·flag.·When·given,·the·VM·becomes·"debuggable",·which·means·that·when·modules·that·been·compiled·with·the·<code·class="inline">beam_debug_info</code>·option·are·loaded,·the·code·is·instrumented·so·that·one·can·enable·and·disable·breakpoints·on·executable·lines.</p></li><li><p>An·experimental·<code·class="inline">erl_debugger</code>·module·with·a·new·debugging·API.·Essentially,·it·allows·a·single,·local,·process·to·be·registered·as·the·"debugger"·process·for·the·node.·This·process·is·the·one·that·will·receive·messages·notifying·that·a·process·hit·a·breakpoint.·This·way,·the·front-end·implementation·of·a·debugger·(such·as·<a·href="https://github.com/WhatsApp/edb">edb·from·WhatApp</a>)·can·be·decoupled·from·OTP.</p></li><li><p>The·<code·class="inline">erl_debugger</code>·module·also·exposes·new·BIFs·to·inspect·<code·class="inline">X</code>·and·<code·class="inline">Y</code>·registers·of·a·suspended·process.·Together·with·new·code-information·BIFs,·this·let's·a·debugger·show·the·values·of·variables·in·scope·for·a·suspended·process.</p></li></ul><p>Own·Id:·OTP-19609·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8670"·title="">PR-8670</a>,·<a·href="https://github.com/erlang/otp/pull/9334"·title="">PR-9334</a>,·<a·href="https://github.com/erlang/otp/pull/9604"·title="">PR-9604</a></p></li></ul><h2·id="kernel-10-2-7"·class="section-heading"> |
| 150 | ··<a·href="#kernel-10-2-7"·class="hover-link"> | 150 | ··<a·href="#kernel-10-2-7"·class="hover-link"> |
| 151 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 151 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 152 | ··</a> | 152 | ··</a> |
| 153 | ··<span·class="text">Kernel·10.2.7</span> | 153 | ··<span·class="text">Kernel·10.2.7</span> |
| 154 | </h2> | 154 | </h2> |
| 155 | <h3·id="fixed-bugs-and-malfunctions-1"·class="section-heading"> | 155 | <h3·id="fixed-bugs-and-malfunctions-1"·class="section-heading"> |
| 156 | ··<a·href="#fixed-bugs-and-malfunctions-1"·class="hover-link"> | 156 | ··<a·href="#fixed-bugs-and-malfunctions-1"·class="hover-link"> |
| Offset 4190, 20 lines modified | Offset 4190, 20 lines modified | ||
| 4190 | will·make·repeated·attempts·to·open·the·disk·log·fail·every·time.</p><p>Own·Id:·OTP-5558·Aux·Id:·seq9823</p></li><li><p>Previously·<a·href="../../../../erts-16.0/doc/html/erlang.html#unlink/1"><code·class="inline">unlink/1</code></a>·and·<a·href="../../../../erts-16.0/doc/html/erlang.html#demonitor/2"><code·class="inline">erlang:demonitor/2</code></a>·behaved | 4190 | will·make·repeated·attempts·to·open·the·disk·log·fail·every·time.</p><p>Own·Id:·OTP-5558·Aux·Id:·seq9823</p></li><li><p>Previously·<a·href="../../../../erts-16.0/doc/html/erlang.html#unlink/1"><code·class="inline">unlink/1</code></a>·and·<a·href="../../../../erts-16.0/doc/html/erlang.html#demonitor/2"><code·class="inline">erlang:demonitor/2</code></a>·behaved |
| 4191 | completely·asynchronous.·This·had·one·undesirable·effect,·though.·You·could | 4191 | completely·asynchronous.·This·had·one·undesirable·effect,·though.·You·could |
| 4192 | never·know·when·you·were·guaranteed·<em>not</em>·to·be·affected·by·a·link·that·you | 4192 | never·know·when·you·were·guaranteed·<em>not</em>·to·be·affected·by·a·link·that·you |
| 4193 | had·unlinked·or·a·monitor·that·you·had·demonitored.</p><p>The·new·behavior·of·<a·href="../../../../erts-16.0/doc/html/erlang.html#unlink/1"><code·class="inline">unlink/1</code></a>·and·<a·href="../../../../erts-16.0/doc/html/erlang.html#demonitor/2"><code·class="inline">erlang:demonitor/2</code></a>·can·be | 4193 | had·unlinked·or·a·monitor·that·you·had·demonitored.</p><p>The·new·behavior·of·<a·href="../../../../erts-16.0/doc/html/erlang.html#unlink/1"><code·class="inline">unlink/1</code></a>·and·<a·href="../../../../erts-16.0/doc/html/erlang.html#demonitor/2"><code·class="inline">erlang:demonitor/2</code></a>·can·be |
| 4194 | viewed·as·two·operations·performed·atomically.·Asynchronously·send·an·unlink | 4194 | viewed·as·two·operations·performed·atomically.·Asynchronously·send·an·unlink |
| 4195 | signal·or·a·demonitor·signal,·and·ignore·any·future·results·of·the·link·or | 4195 | signal·or·a·demonitor·signal,·and·ignore·any·future·results·of·the·link·or |
| 4196 | monitor.</p><p><em>NOTE</em>:·This·change·can·cause·some·obscure·code·to·fail·which·previously·did | 4196 | monitor.</p><p><em>NOTE</em>:·This·change·can·cause·some·obscure·code·to·fail·which·previously·did |
| 4197 | not.·For·example,·the·following·code·might·hang:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">············</span><span·class="n">Mon</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">monitor</span><span·class="p"·data-group-id=" | 4197 | not.·For·example,·the·following·code·might·hang:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">············</span><span·class="n">Mon</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">monitor</span><span·class="p"·data-group-id="7433394652-1">(</span><span·class="ss">process</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Pid</span><span·class="p"·data-group-id="7433394652-1">)</span><span·class="p">,</span><span·class="w"> |
| 4198 | ············</span><span·class="c1">%%·...</span><span·class="w"> | 4198 | ············</span><span·class="c1">%%·...</span><span·class="w"> |
| 4199 | ············</span><span·class="nf">exit</span><span·class="p"·data-group-id=" | 4199 | ············</span><span·class="nf">exit</span><span·class="p"·data-group-id="7433394652-2">(</span><span·class="n">Pid</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">bang</span><span·class="p"·data-group-id="7433394652-2">)</span><span·class="p">,</span><span·class="w"> |
| 4200 | ············</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">demonitor</span><span·class="p"·data-group-id=" | 4200 | ············</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">demonitor</span><span·class="p"·data-group-id="7433394652-3">(</span><span·class="n">Mon</span><span·class="p"·data-group-id="7433394652-3">)</span><span·class="p">,</span><span·class="w"> |
| 4201 | ············</span><span·class="k">receive</span><span·class="w"> | 4201 | ············</span><span·class="k">receive</span><span·class="w"> |
| 4202 | ················</span><span·class="p"·data-group-id=" | 4202 | ················</span><span·class="p"·data-group-id="7433394652-4">{</span><span·class="ss">'DOWN'</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Mon</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">process</span><span·class="p">,</span><span·class="w">·</[·...·truncated·by·diffoscope;·len:·144,·SHA:·93a6f67577352663e8569cbe8b290fadda65bde375f612f1167478f2b2825d28·...·]-4">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">ok</span><span·class="w"> |
| 4203 | ············</span><span·class="c1">%%·We·were·previously·guaranteed·to·get·a·down·message</span><span·class="w"> | 4203 | ············</span><span·class="c1">%%·We·were·previously·guaranteed·to·get·a·down·message</span><span·class="w"> |
| 4204 | ············</span><span·class="c1">%%·(since·we·exited·the·process·ourself),·so·we·could</span><span·class="w"> | 4204 | ············</span><span·class="c1">%%·(since·we·exited·the·process·ourself),·so·we·could</span><span·class="w"> |
| 4205 | ············</span><span·class="c1">%%·in·this·case·leave·out:</span><span·class="w"> | 4205 | ············</span><span·class="c1">%%·in·this·case·leave·out:</span><span·class="w"> |
| 4206 | ············</span><span·class="c1">%%·after·0·->·ok</span><span·class="w"> | 4206 | ············</span><span·class="c1">%%·after·0·->·ok</span><span·class="w"> |
| 4207 | ············</span><span·class="k">end</span><span·class="p">,</span></code></pre><p>*<strong>·POTENTIAL·INCOMPATIBILITY·*</strong></p><p>Own·Id:·OTP-5772</p></li><li><p>The·behavior·when·an·application·fails·to·start·and·possibly·causes·the | 4207 | ············</span><span·class="k">end</span><span·class="p">,</span></code></pre><p>*<strong>·POTENTIAL·INCOMPATIBILITY·*</strong></p><p>Own·Id:·OTP-5772</p></li><li><p>The·behavior·when·an·application·fails·to·start·and·possibly·causes·the |
| 4208 | runtime·system·to·halt·has·been·cleaned·up,·including·fixing·some·minor·bugs.</p><p><code·class="inline">application_controller</code>·should·now·always·terminate·with·a·non-nested·string, | 4208 | runtime·system·to·halt·has·been·cleaned·up,·including·fixing·some·minor·bugs.</p><p><code·class="inline">application_controller</code>·should·now·always·terminate·with·a·non-nested·string, |
| 4209 | meaning·the·slogan·in·an·<code·class="inline">erl_crash.dump</code>·should·always·be·easy·to·read.</p><p><code·class="inline">init</code>·now·makes·sure·that·the·slogan·passed·to·<a·href="../../../../erts-16.0/doc/html/erlang.html#halt/1"><code·class="inline">erlang:halt/1</code></a>·does·not | 4209 | meaning·the·slogan·in·an·<code·class="inline">erl_crash.dump</code>·should·always·be·easy·to·read.</p><p><code·class="inline">init</code>·now·makes·sure·that·the·slogan·passed·to·<a·href="../../../../erts-16.0/doc/html/erlang.html#halt/1"><code·class="inline">erlang:halt/1</code></a>·does·not |
| Offset 4622, 15 lines modified | Offset 4622, 15 lines modified | ||
| 4622 | ······<p·class="built-using"> | 4622 | ······<p·class="built-using"> |
| 4623 | ········Built·using | 4623 | ········Built·using |
| 4624 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 4624 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 4625 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 4625 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 4626 | ······</p> | 4626 | ······</p> |
| 4627 | <p>Copyright·©·1996-202 | 4627 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 4628 | ····</footer> | 4628 | ····</footer> |
| 4629 | ··</div> | 4629 | ··</div> |
| 4630 | </main> | 4630 | </main> |
| 4631 | </div> | 4631 | </div> |
| 4632 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 4632 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 4633 | ··<script> | 4633 | ··<script> |
| 4634 | ··let·initialized·=·false; | 4634 | ··let·initialized·=·false; |
| Offset 640, 27 lines modified | Offset 640, 27 lines modified | ||
| 640 | ······<div·class="specs"> | 640 | ······<div·class="specs"> |
| 641 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·cmd(Command,·Options)·->·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:string/0">string</a>()·when·Command·::·<a·href="#t:os_command/0">os_command</a>(),·Options·::·<a·href="#t:os_command_opts/0">os_command_opts</a>().</pre> | 641 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·cmd(Command,·Options)·->·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:string/0">string</a>()·when·Command·::·<a·href="#t:os_command/0">os_command</a>(),·Options·::·<a·href="#t:os_command_opts/0">os_command_opts</a>().</pre> |
| 642 | ······</div> | 642 | ······</div> |
| 643 | <p>Executes·<code·class="inline">Command</code>·in·a·command·shell·of·the·target·OS,·captures·the·standard | 643 | <p>Executes·<code·class="inline">Command</code>·in·a·command·shell·of·the·target·OS,·captures·the·standard |
| 644 | output·and·standard·error·of·the·command,·and·returns·this·result·as·a·string.</p><p><em>Examples:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">LsOut</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">os</span><span·class="p">:</span><span·class="nf">cmd</span><span·class="p"·data-group-id=" | 644 | output·and·standard·error·of·the·command,·and·returns·this·result·as·a·string.</p><p><em>Examples:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">LsOut</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">os</span><span·class="p">:</span><span·class="nf">cmd</span><span·class="p"·data-group-id="2578601033-1">(</span><span·class="s">"ls"</span><span·class="p"·data-group-id="2578601033-1">)</span><span·class="p">,</span><span·class="w">·</span><span·class="c1">%·on·unix·platform</span><span·class="w"> |
| 645 | </span><span·class="n">DirOut</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">os</span><span·class="p">:</span><span·class="nf">cmd</span><span·class="p"·data-group-id=" | 645 | </span><span·class="n">DirOut</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">os</span><span·class="p">:</span><span·class="nf">cmd</span><span·class="p"·data-group-id="2578601033-2">(</span><span·class="s">"dir"</span><span·class="p"·data-group-id="2578601033-2">)</span><span·class="p">,</span><span·class="w">·</span><span·class="c1">%·on·Win32·platform</span></code></pre><p>Notice·that·in·some·cases,·standard·output·of·a·command·when·called·from·another |
| 646 | program·can·differ,·compared·with·the·standard·output·of·the·command·when·called | 646 | program·can·differ,·compared·with·the·standard·output·of·the·command·when·called |
| 647 | directly·from·an·OS·command·shell.</p><p>The·possible·options·are:</p><ul><li><p><strong><code·class="inline">max_size</code></strong>·-·The·maximum·size·of·the·data·returned·by·the·<a·href="#cmd/2"><code·class="inline">os:cmd/2</code></a>·call. | 647 | directly·from·an·OS·command·shell.</p><p>The·possible·options·are:</p><ul><li><p><strong><code·class="inline">max_size</code></strong>·-·The·maximum·size·of·the·data·returned·by·the·<a·href="#cmd/2"><code·class="inline">os:cmd/2</code></a>·call. |
| 648 | This·option·is·a·safety·feature·that·should·be·used·when·the·command·executed | 648 | This·option·is·a·safety·feature·that·should·be·used·when·the·command·executed |
| 649 | can·return·a·very·large,·possibly·infinite,·result.</p><p><em>Example</em>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="nc">os</span><span·class="p">:</span><span·class="nf">cmd</span><span·class="p"·data-group-id=" | 649 | can·return·a·very·large,·possibly·infinite,·result.</p><p><em>Example</em>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="nc">os</span><span·class="p">:</span><span·class="nf">cmd</span><span·class="p"·data-group-id="0666374256-1">(</span><span·class="s">"cat·/dev/zero"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0666374256-2">#{</span><span·class="w">·</span><span·class="ss">max_size</span><span·class="w">·</span><spa[·...·truncated·by·diffoscope;·len:·192,·SHA:·5d4a67c46c120b41ed94458985851e3f302f8ab900be8492d5981a382c7f7cc9·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 650 | </span><span·class="p"·data-group-id=" | 650 | </span><span·class="p"·data-group-id="0666374256-3">[</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="[·...·truncated·by·diffoscope;·len:·763,·SHA:·9ffa8ee9676c0d96484e259c6c743a4c4913a022324e311fe2c198a368d21f54·...·]-3">]</span></code></pre></li><li><p><strong><code·class="inline">exception_on_failure</code></strong>·-·If·set·to·true,·<a·href="#cmd/2"><code·class="inline">os:cmd/2</code></a>·will·throw·an·error |
| 651 | exception·if·the·command·exits·with·a·non-zero·exit·code.·The·exception·reason | 651 | exception·if·the·command·exits·with·a·non-zero·exit·code.·The·exception·reason |
| 652 | looks·like·this:·<code·class="inline">{command_failed,·ResultBeforeFailure,·ExitCode}</code>·where | 652 | looks·like·this:·<code·class="inline">{command_failed,·ResultBeforeFailure,·ExitCode}</code>·where |
| 653 | <code·class="inline">ResultBeforeFailure</code>·is·the·result·written·to·stdout·by·the·command·before | 653 | <code·class="inline">ResultBeforeFailure</code>·is·the·result·written·to·stdout·by·the·command·before |
| 654 | the·error·happened·and·<code·class="inline">ExitCode</code>·is·the·exit·code·from·the·command.</p><p><em>Example</em>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="k">catch</span><span·class="w">·</span><span·class="nc">os</span><span·class="p">:</span><span·class="nf">cmd</span><span·class="p"·data-group-id=" | 654 | the·error·happened·and·<code·class="inline">ExitCode</code>·is·the·exit·code·from·the·command.</p><p><em>Example</em>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="k">catch</span><span·class="w">·</span><span·class="nc">os</span><span·class="p">:</span><span·class="nf">cmd</span><span·class="p"·data-group-id="0862444741-1">(</span><span·class="s">"echo·hello·&&·exit·123"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0862444741-2">#{</span><span·class="w">·</span><span·class="ss">exception_on_failure</span[·...·truncated·by·diffoscope;·len:·223,·SHA:·59a637cee36bc40ddc8df180e7672123388878a0de239239f6ac5612b5b644d2·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 655 | </span><span·class="p"·data-group-id=" | 655 | </span><span·class="p"·data-group-id="0862444741-3">{</span><span·class="ss">'EXIT'</span><span·class="p">,</span><span·class="p"·data-group-id="0862444741-4">{</span><span·class="p"·data-group-id="0862444741-5">{</span><span·class="ss">command_failed</span><span·class="p">,</span><spa[·...·truncated·by·diffoscope;·len:·130,·SHA:·9938a0f2dcb658d911960f51dea82e3d5352f9aab8bf789a0b5e4b9dd8737910·...·]-5">}</span><span·class="p">,</span><span·class="w"> |
| 656 | ·········</span><span·class="p"·data-group-id=" | 656 | ·········</span><span·class="p"·data-group-id="0862444741-6">[</span><span·class="p"·data-group-id="0862444741-7">{</span><span·class="ss">os</span><span·class="p">,</span><span·class="ss">cmd</span><span·class="p">,</span><span·class="mi">2</span><span·class="p">,</span><span·class="p"·data-group-id="[·...·truncated·by·diffoscope;·len:·526,·SHA:·6816a7cc75fa65f49de873e9abd90bd6456e4051a16bfe85c03c1937426895eb·...·]-7">}</span><span·class="p">,</span><span·class="w"> |
| 657 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span></code></pre></li></ul><p>The·command·shell·can·be·set·using·the | 657 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span></code></pre></li></ul><p>The·command·shell·can·be·set·using·the |
| 658 | <a·href="kernel_app.html#os_cmd_shell">kernel·configuration·parameter</a>,·by·default·the | 658 | <a·href="kernel_app.html#os_cmd_shell">kernel·configuration·parameter</a>,·by·default·the |
| 659 | shell·is·detected·upon·system·startup.</p> | 659 | shell·is·detected·upon·system·startup.</p> |
| 660 | ··</section> | 660 | ··</section> |
| 661 | </section> | 661 | </section> |
| 662 | <section·class="detail"·id="env/0"> | 662 | <section·class="detail"·id="env/0"> |
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| 927 | ······</div> | 927 | ······</div> |
| 928 | <p>Returns·a·performance·counter·that·can·be·used·as·a·very·fast·and·high | 928 | <p>Returns·a·performance·counter·that·can·be·used·as·a·very·fast·and·high |
| 929 | resolution·timestamp.</p><p>This·counter·is·read·directly·from·the·hardware·or·operating·system·with·the | 929 | resolution·timestamp.</p><p>This·counter·is·read·directly·from·the·hardware·or·operating·system·with·the |
| 930 | same·guarantees.·This·means·that·two·consecutive·calls·to·the·function·are·not | 930 | same·guarantees.·This·means·that·two·consecutive·calls·to·the·function·are·not |
| 931 | guaranteed·to·be·monotonic,·though·it·most·likely·will·be.·The·performance | 931 | guaranteed·to·be·monotonic,·though·it·most·likely·will·be.·The·performance |
| 932 | counter·will·be·converted·to·the·resolution·passed·as·an·argument.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">T1</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">os</span><span·class="p">:</span><span·class="nf">perf_counter</span><span·class="p"·data-group-id=" | 932 | counter·will·be·converted·to·the·resolution·passed·as·an·argument.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">T1</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">os</span><span·class="p">:</span><span·class="nf">perf_counter</span><span·class="p"·data-group-id="4512288094-1">(</span><span·class="mi">1000</span><span·class="p"·data-group-id="4512288094-1">)</span><span·class="p">,</span><span·class="k">receive</span><span·class="w">·</span><span·class="k">after</span><span·class="w">·</span><span·class="mi">10000<[·...·truncated·by·diffoscope;·len:·487,·SHA:·3066a53893ddc4fa70eb1bde29a453f020714fe5ffc30ccb568dfacb7d8ba598·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 933 | </span><span·class="mi">176525861</span><span·class="gp·unselectable"> | 933 | </span><span·class="mi">176525861</span><span·class="gp·unselectable"> |
| 934 | 2>·</span><span·class="n">T2</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="n">T1</span><span·class="p">.</span><span·class="w"> | 934 | 2>·</span><span·class="n">T2</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="n">T1</span><span·class="p">.</span><span·class="w"> |
| 935 | </span><span·class="mi">10004</span></code></pre> | 935 | </span><span·class="mi">10004</span></code></pre> |
| 936 | ··</section> | 936 | ··</section> |
| 937 | </section> | 937 | </section> |
| 938 | <section·class="detail"·id="putenv/2"> | 938 | <section·class="detail"·id="putenv/2"> |
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| 1088 | <p>Returns·the·current·<a·href="../../../../erts-16.0/doc/html/time_correction.html#os-system-time">OS·system·time</a> | 1088 | <p>Returns·the·current·<a·href="../../../../erts-16.0/doc/html/time_correction.html#os-system-time">OS·system·time</a> |
| 1089 | in·the·same·format·as·<a·href="../../../../erts-16.0/doc/html/erlang.html#timestamp/0"><code·class="inline">erlang:timestamp/0</code></a>.</p><p>The·tuple·can·be·used·together·with·function·<a·href="../../../../lib/stdlib-7.0/doc/html/calendar.html#now_to_universal_time/1"><code·class="inline">calendar:now_to_universal_time/1</code></a> | 1089 | in·the·same·format·as·<a·href="../../../../erts-16.0/doc/html/erlang.html#timestamp/0"><code·class="inline">erlang:timestamp/0</code></a>.</p><p>The·tuple·can·be·used·together·with·function·<a·href="../../../../lib/stdlib-7.0/doc/html/calendar.html#now_to_universal_time/1"><code·class="inline">calendar:now_to_universal_time/1</code></a> |
| 1090 | or·<a·href="../../../../lib/stdlib-7.0/doc/html/calendar.html#now_to_local_time/1"><code·class="inline">calendar:now_to_local_time/1</code></a>·to·get·calendar·time.·Using·the·calendar·time, | 1090 | or·<a·href="../../../../lib/stdlib-7.0/doc/html/calendar.html#now_to_local_time/1"><code·class="inline">calendar:now_to_local_time/1</code></a>·to·get·calendar·time.·Using·the·calendar·time, |
| 1091 | together·with·the·<code·class="inline">MicroSecs</code>·part·of·the·return·tuple·from·this·function, | 1091 | together·with·the·<code·class="inline">MicroSecs</code>·part·of·the·return·tuple·from·this·function, |
| 1092 | allows·you·to·log·time·stamps·in·high·resolution·and·consistent·with·the·time·in | 1092 | allows·you·to·log·time·stamps·in·high·resolution·and·consistent·with·the·time·in |
| 1093 | ·the·rest·of·the·OS.</p><p>Example·of·code·formatting·a·string·in·format·"DD·Mon·YYYY·HH:MM:SS.mmmmmm", | 1093 | ·the·rest·of·the·OS.</p><p>Example·of·code·formatting·a·string·in·format·"DD·Mon·YYYY·HH:MM:SS.mmmmmm", |
| 1094 | where·DD·is·the·day·of·month,·Mon·is·the·textual·month·name,·YYYY·is·the·year, | 1094 | where·DD·is·the·day·of·month,·Mon·is·the·textual·month·name,·YYYY·is·the·year, |
| 1095 | HH:MM:SS·is·the·time,·and·mmmmmm·is·the·microseconds·in·six·positions:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="1871498547-1">(</span><span·class="ss">print_time</span><span·class="p"·data-group-id="1871498547-1">)</span><span·class="p">.</span><span·class="w"> | ||
| 1096 | 1095 | HH:MM:SS·is·the·time,·and·mmmmmm·is·the·microseconds·in·six·positions:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="9934593670-1">(</span><span·class="ss">print_time[·...·truncated·by·diffoscope;·len:·50,·SHA:·219382de392b7a6e9cb87c64e437b696f754279e0f1bb272d2d4437837d3632a·...·]">)</span><span·class="p">.</span><span·class="w"> | |
| 1096 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="9934593670-2">(</span><span·class="p"·data-group-id="9934593670-3">[</span><span·class="ss">format_utc_timestamp</span><span·class="p">/</span><span·class="mi">0</span><span·class="p"·data-group-id="9934593670-3">]</span><span·class="p"·data-group-id="9934593670-2">)</span><span·class="p">.</span><span·class="w"> | ||
| 1097 | </span><span·class="nf">format_utc_timestamp</span><span·class="p"·data-group-id=" | 1097 | </span><span·class="nf">format_utc_timestamp</span><span·class="p"·data-group-id="9934593670-4">(</span><span·class="p"·data-group-id="9934593670-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 1098 | ····</span><span·class="n">TS</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 1098 | ····</span><span·class="n">TS</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="9934593670-5">{</span><span·class="p">_</span><span·class="p">,</span><span·class="p">_</span><span·class="p">,</span><span·class="n">Micro</span><span·class="p"·data-group-id="9934593670-5">}</span><span·class="w">·</span><span·class="o">=</span><span·cla[·...·truncated·by·diffoscope;·len:·192,·SHA:·31d31c8e02add8175045df9a861a54fbd92b6e34a9bb79bd1e71baac128d9538·...·]-6">)</span><span·class="p">,</span><span·class="w"> |
| 1099 | ····</span><span·class="p"·data-group-id=" | 1099 | ····</span><span·class="p"·data-group-id="9934593670-7">{</span><span·class="p"·data-group-id="9934593670-8">{</span><span·class="n">Year</span><span·class="p">,</span><span·class="n">Month</span><span·class="p">,</span><span·class="n">Day</span><span·class="p"·data-group-id="9934593670-8">}</span[·...·truncated·by·diffoscope;·len:·305,·SHA:·240de1f6fe2e809c3dba42c2d4a902c6a08ef8806c3d1719ff048881a09474bb·...·]-7">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w"> |
| 1100 | </span><span·class="nc">calendar</span><span·class="p">:</span><span·class="nf">now_to_universal_time</span><span·class="p"·data-group-id=" | 1100 | </span><span·class="nc">calendar</span><span·class="p">:</span><span·class="nf">now_to_universal_time</span><span·class="p"·data-group-id="9934593670-10">(</span><span·class="n">TS</span><span·class="p"·data-group-id="9934593670-10">)</span><span·class="p">,</span><span·class="w"> |
| 1101 | ····</span><span·class="n">Mstr</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">element</span><span·class="p"·data-group-id=" | 1101 | ····</span><span·class="n">Mstr</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">element</span><span·class="p"·data-group-id="9934593670-11">(</span><span·class="n">Month</span><span·class="p">,</span><span·class="p"·data-group-id="9934593670-12">{</span><span·class="s">"Jan"</span><span·class="p">,</span><span·class="s">"Feb"</span><span·class="p">,</span><span·class="s">"Mar"</span><span·class="p">,</span><span·class="s">"Apr"</span><span·class="p">,</span><span·class="s">"May"</span><span·class="p">,</span><span·class="s">"Jun"</span><span·class="p">,</span><span·class="s">"Jul"</span><span·class="p">,</span><span·class="w"> |
| 1102 | ····</span><span·class="s">"Aug"</span><span·class="p">,</span><span·class="s">"Sep"</span><span·class="p">,</span><span·class="s">"Oct"</span><span·class="p">,</span><span·class="s">"Nov"</span><span·class="p">,</span><span·class="s">"Dec"</span><span·class="p"·data-group-id=" | 1102 | ····</span><span·class="s">"Aug"</span><span·class="p">,</span><span·class="s">"Sep"</span><span·class="p">,</span><span·class="s">"Oct"</span><span·class="p">,</span><span·class="s">"Nov"</span><span·class="p">,</span><span·class="s">"Dec"</span><span·class="p"·data-group-id="9934593670-12">}</span><span·class="p"·data-group-id="9934593670-11">)</span><span·class="p">,</span><span·class="w"> |
| 1103 | ····</span><span·class="nc">io_lib</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 1103 | ····</span><span·class="nc">io_lib</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="9934593670-13">(</span><span·class="s">"</span><span·class="si">~2w</span><span·class="s">·</span><span·class="si">~s</span><span·class="s">·</span><span·class="si">~4w</span><span·class="s">·</span><span·class="si">~2w</span><span·class="s">:</span><span·class="si">~2..0w</span><span·class="s">:</span><span·class="si">~2..0w</span><span·class="s">.</span><span·class="si">~6..0w</span><span·class="s">"</span><span·class="p">,</span><span·class="w"> |
| 1104 | ····</span><span·class="p"·data-group-id=" | 1104 | ····</span><span·class="p"·data-group-id="9934593670-14">[</span><span·class="n">Day</span><span·class="p">,</span><span·class="n">Mstr</span><span·class="p">,</span><span·class="n">Year</span><span·class="p">,</span><span·class="n">Hour</span><span·class="p">,</span><span·class="n">Minute</span><[·...·truncated·by·diffoscope;·len:·1004,·SHA:·553a3d973075e73f8a690f427ed2c4e630e2a316e0a5c777bd43a8bb50221642·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 1105 | </span><span·class="mi">29</span><span·class="w">·</span><span·class="n">Apr</span><span·class="w">·</span><span·class="mi">2009</span><span·class="w">··</span><span·class="mi">9</span><span·class="p">:</span><span·class="mi">55</span><span·class="p">:</span><span·class="mf">30.051711</span></code></pre><p>OS·system·time·can·also·be·retrieved·by·<a·href="#system_time/0"><code·class="inline">system_time/0</code></a>·and·<a·href="#system_time/1"><code·class="inline">system_time/1</code></a>.</p> | 1105 | </span><span·class="mi">29</span><span·class="w">·</span><span·class="n">Apr</span><span·class="w">·</span><span·class="mi">2009</span><span·class="w">··</span><span·class="mi">9</span><span·class="p">:</span><span·class="mi">55</span><span·class="p">:</span><span·class="mf">30.051711</span></code></pre><p>OS·system·time·can·also·be·retrieved·by·<a·href="#system_time/0"><code·class="inline">system_time/0</code></a>·and·<a·href="#system_time/1"><code·class="inline">system_time/1</code></a>.</p> |
| 1106 | ··</section> | 1106 | ··</section> |
| 1107 | </section> | 1107 | </section> |
| 1108 | <section·class="detail"·id="type/0"> | 1108 | <section·class="detail"·id="type/0"> |
| 1109 | ··<div·class="detail-header"> | 1109 | ··<div·class="detail-header"> |
| 1110 | ····<a·href="#type/0"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 1110 | ····<a·href="#type/0"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| Offset 1219, 15 lines modified | Offset 1219, 15 lines modified | ||
| 1219 | ······<p·class="built-using"> | 1219 | ······<p·class="built-using"> |
| 1220 | ········Built·using | 1220 | ········Built·using |
| 1221 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1221 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1222 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1222 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1223 | ······</p> | 1223 | ······</p> |
| 1224 | <p>Copyright·©·1996-202 | 1224 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1225 | ····</footer> | 1225 | ····</footer> |
| 1226 | ··</div> | 1226 | ··</div> |
| 1227 | </main> | 1227 | </main> |
| 1228 | </div> | 1228 | </div> |
| 1229 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1229 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1230 | ··<script> | 1230 | ··<script> |
| 1231 | ··let·initialized·=·false; | 1231 | ··let·initialized·=·false; |
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| 836 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·monitor_scope(Scope·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:atom/0">atom</a>())·->·{<a·href="../../../../erts-16.0/doc/html/erlang.html#t:reference/0">reference</a>(),·#{<a·href="#t:group/0">group</a>()·=>·[<a·href="../../../../erts-16.0/doc/html/erlang.html#t:pid/0">pid</a>()]}}.</pre> | 836 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·monitor_scope(Scope·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:atom/0">atom</a>())·->·{<a·href="../../../../erts-16.0/doc/html/erlang.html#t:reference/0">reference</a>(),·#{<a·href="#t:group/0">group</a>()·=>·[<a·href="../../../../erts-16.0/doc/html/erlang.html#t:pid/0">pid</a>()]}}.</pre> |
| 837 | ······</div> | 837 | ······</div> |
| 838 | <p>Subscribes·the·caller·to·updates·from·the·specified·scope.</p><p>Returns·content·of·the·entire·scope·and·a·reference·to·match·the·upcoming | 838 | <p>Subscribes·the·caller·to·updates·from·the·specified·scope.</p><p>Returns·content·of·the·entire·scope·and·a·reference·to·match·the·upcoming |
| 839 | notifications.</p><p>Whenever·any·group·membership·changes,·an·update·message·is·sent·to·the | 839 | notifications.</p><p>Whenever·any·group·membership·changes,·an·update·message·is·sent·to·the |
| 840 | subscriber:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 840 | subscriber:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="2173383657-1">{</span><span·class="n">Ref</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">join</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Group</span><span·class="p">,</span><span·class="w">·</span><span·cl[·...·truncated·by·diffoscope;·len:·781,·SHA:·f4bdbb2b76709374bb029793558cb34ea0b0d11c52c5941931b41582bed50e01·...·]-1">}</span></code></pre> |
| 841 | ··</section> | 841 | ··</section> |
| 842 | </section> | 842 | </section> |
| 843 | <section·class="detail"·id="start/1"> | 843 | <section·class="detail"·id="start/1"> |
| 844 | ··<div·class="detail-header"> | 844 | ··<div·class="detail-header"> |
| 845 | ····<a·href="#start/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 845 | ····<a·href="#start/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 846 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 846 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 1007, 15 lines modified | Offset 1007, 15 lines modified | ||
| 1007 | ······<p·class="built-using"> | 1007 | ······<p·class="built-using"> |
| 1008 | ········Built·using | 1008 | ········Built·using |
| 1009 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1009 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1010 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1010 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1011 | ······</p> | 1011 | ······</p> |
| 1012 | <p>Copyright·©·1996-202 | 1012 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1013 | ····</footer> | 1013 | ····</footer> |
| 1014 | ··</div> | 1014 | ··</div> |
| 1015 | </main> | 1015 | </main> |
| 1016 | </div> | 1016 | </div> |
| 1017 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1017 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1018 | ··<script> | 1018 | ··<script> |
| 1019 | ··let·initialized·=·false; | 1019 | ··let·initialized·=·false; |
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| 1043 | all·the·nodes,·but·the·multicall·is·faster,·as·all·the·requests·are·sent·at·the | 1043 | all·the·nodes,·but·the·multicall·is·faster,·as·all·the·requests·are·sent·at·the |
| 1044 | same·time·and·are·collected·one·by·one·as·they·come·back.</p><p>The·function·evaluates·<a·href="../../../../erts-16.0/doc/html/erlang.html#apply/3"><code·class="inline">apply(Module,·Function,·Args)</code></a>·on·the | 1044 | same·time·and·are·collected·one·by·one·as·they·come·back.</p><p>The·function·evaluates·<a·href="../../../../erts-16.0/doc/html/erlang.html#apply/3"><code·class="inline">apply(Module,·Function,·Args)</code></a>·on·the |
| 1045 | specified·nodes·and·collects·the·answers.·It·returns·<code·class="inline">{ResL,·BadNodes}</code>,·where | 1045 | specified·nodes·and·collects·the·answers.·It·returns·<code·class="inline">{ResL,·BadNodes}</code>,·where |
| 1046 | <code·class="inline">BadNodes</code>·is·a·list·of·the·nodes·that·do·not·exist,·and·<code·class="inline">ResL</code>·is·a·list·of·the | 1046 | <code·class="inline">BadNodes</code>·is·a·list·of·the·nodes·that·do·not·exist,·and·<code·class="inline">ResL</code>·is·a·list·of·the |
| 1047 | return·values,·or·<code·class="inline">{badrpc,·Reason}</code>·for·failing·calls.·<code·class="inline">Timeout</code>·is·a·time | 1047 | return·values,·or·<code·class="inline">{badrpc,·Reason}</code>·for·failing·calls.·<code·class="inline">Timeout</code>·is·a·time |
| 1048 | (integer)·in·milliseconds,·or·<code·class="inline">infinity</code>.</p><p>The·following·example·is·useful·when·new·object·code·is·to·be·loaded·on·all | 1048 | (integer)·in·milliseconds,·or·<code·class="inline">infinity</code>.</p><p>The·following·example·is·useful·when·new·object·code·is·to·be·loaded·on·all |
| 1049 | nodes·in·the·network,·and·indicates·some·side·effects·that·RPCs·can·produce:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%%·Find·object·code·for·module·Mod</span><span·class="w"> | 1049 | nodes·in·the·network,·and·indicates·some·side·effects·that·RPCs·can·produce:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%%·Find·object·code·for·module·Mod</span><span·class="w"> |
| 1050 | </span><span·class="p"·data-group-id=" | 1050 | </span><span·class="p"·data-group-id="0110754124-1">{</span><span·class="n">Mod</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Bin</span><span·class="p">,</span><span·class="w">·</span><span·class="n">File</span><span·class="p"·data-group-id="0110754124-1">}</span><span·[·...·truncated·by·diffoscope;·len:·277,·SHA:·77fb62ef3e8755cb2fbbb11e9c5248a97930e3d2b6767ea4388dcf25618ef500·...·]-2">)</span><span·class="p">,</span><span·class="w"> |
| 1051 | </span><span·class="c1">%%·and·load·it·on·all·nodes·including·this·one</span><span·class="w"> | 1051 | </span><span·class="c1">%%·and·load·it·on·all·nodes·including·this·one</span><span·class="w"> |
| 1052 | </span><span·class="p"·data-group-id=" | 1052 | </span><span·class="p"·data-group-id="0110754124-3">{</span><span·class="n">ResL</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="p"·data-group-id="0110754124-3">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·clas[·...·truncated·by·diffoscope;·len:·608,·SHA:·3221c6bc44d96a7e3fc1ae42a796c16efb159abc3767a98f6e676acca843d6d3·...·]-4">)</span><span·class="p">,</span><span·class="w"> |
| 1053 | </span><span·class="c1">%%·and·then·maybe·check·the·ResL·list.</span></code></pre><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>If·you·want·the·ability·to·distinguish·between·results,·you·may·want·to | 1053 | </span><span·class="c1">%%·and·then·maybe·check·the·ResL·list.</span></code></pre><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>If·you·want·the·ability·to·distinguish·between·results,·you·may·want·to |
| 1054 | consider·using·the·<a·href="erpc.html#multicall/4"><code·class="inline">erpc:multicall()</code></a>·function·from·the | 1054 | consider·using·the·<a·href="erpc.html#multicall/4"><code·class="inline">erpc:multicall()</code></a>·function·from·the |
| 1055 | <code·class="inline">erpc</code>·module·instead.</p></section><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>You·cannot·make·<em>any</em>·assumptions·about·the·process·that·will·perform·the | 1055 | <code·class="inline">erpc</code>·module·instead.</p></section><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>You·cannot·make·<em>any</em>·assumptions·about·the·process·that·will·perform·the |
| 1056 | <code·class="inline">apply()</code>.·It·may·be·the·calling·process·itself,·an·<code·class="inline">rpc</code>·server,·another | 1056 | <code·class="inline">apply()</code>.·It·may·be·the·calling·process·itself,·an·<code·class="inline">rpc</code>·server,·another |
| 1057 | server,·or·a·freshly·spawned·process.</p></section> | 1057 | server,·or·a·freshly·spawned·process.</p></section> |
| 1058 | ··</section> | 1058 | ··</section> |
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| 1396 | ······<p·class="built-using"> | 1396 | ······<p·class="built-using"> |
| 1397 | ········Built·using | 1397 | ········Built·using |
| 1398 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1398 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1399 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1399 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1400 | ······</p> | 1400 | ······</p> |
| 1401 | <p>Copyright·©·1996-202 | 1401 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1402 | ····</footer> | 1402 | ····</footer> |
| 1403 | ··</div> | 1403 | ··</div> |
| 1404 | </main> | 1404 | </main> |
| 1405 | </div> | 1405 | </div> |
| 1406 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1406 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1407 | ··<script> | 1407 | ··<script> |
| 1408 | ··let·initialized·=·false; | 1408 | ··let·initialized·=·false; |
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| 141 | ······<p·class="built-using"> | 141 | ······<p·class="built-using"> |
| 142 | ········Built·using | 142 | ········Built·using |
| 143 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 143 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 144 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 144 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 145 | ······</p> | 145 | ······</p> |
| 146 | <p>Copyright·©·1996-202 | 146 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 147 | ····</footer> | 147 | ····</footer> |
| 148 | ··</div> | 148 | ··</div> |
| 149 | </main> | 149 | </main> |
| 150 | </div> | 150 | </div> |
| 151 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 151 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 152 | ··<script> | 152 | ··<script> |
| 153 | ··let·initialized·=·false; | 153 | ··let·initialized·=·false; |
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| 137 | of·the·trace·output.</p><h2·id="module-trace-messages-sent-to-the-system-tracer"·class="section-heading"> | 137 | of·the·trace·output.</p><h2·id="module-trace-messages-sent-to-the-system-tracer"·class="section-heading"> |
| 138 | ··<a·href="#module-trace-messages-sent-to-the-system-tracer"·class="hover-link"> | 138 | ··<a·href="#module-trace-messages-sent-to-the-system-tracer"·class="hover-link"> |
| 139 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 139 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 140 | ··</a> | 140 | ··</a> |
| 141 | ··<span·class="text">Trace·Messages·Sent·to·the·System·Tracer</span> | 141 | ··<span·class="text">Trace·Messages·Sent·to·the·System·Tracer</span> |
| 142 | </h2> | 142 | </h2> |
| 143 | <p>The·format·of·the·messages·is·one·of·the·following,·depending·on·if·flag | 143 | <p>The·format·of·the·messages·is·one·of·the·following,·depending·on·if·flag |
| 144 | <code·class="inline">timestamp</code>·of·the·trace·token·is·set·to·<code·class="inline">true</code>·or·<code·class="inline">false</code>:</p><pre><code·class="text">{seq_trace,·Label,·SeqTraceInfo,·TimeStamp}</code></pre><p>or</p><pre><code·class="text">{seq_trace,·Label,·SeqTraceInfo}</code></pre><p>Where:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Label</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">int</span><span·class="p"·data-group-id=" | 144 | <code·class="inline">timestamp</code>·of·the·trace·token·is·set·to·<code·class="inline">true</code>·or·<code·class="inline">false</code>:</p><pre><code·class="text">{seq_trace,·Label,·SeqTraceInfo,·TimeStamp}</code></pre><p>or</p><pre><code·class="text">{seq_trace,·Label,·SeqTraceInfo}</code></pre><p>Where:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Label</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">int</span><span·class="p"·data-group-id="8973812457-1">(</span><span·class="p"·data-group-id="8973812457-1">)</span><span·class="w"> |
| 145 | </span><span·class="n">TimeStamp</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 145 | </span><span·class="n">TimeStamp</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="8973812457-2">{</span><span·class="n">Seconds</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Milliseconds</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Microseconds</span><span·class="p"·data-group-id="8973812[·...·truncated·by·diffoscope;·len:·3,·SHA:·353767b239099863e13ca954e20a66c9d75f777baf239f56e399958de49bf79d·...·]-2">}</span><span·class="w"> |
| 146 | ··</span><span·class="n">Seconds</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">Milliseconds</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">Microseconds</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">int</span><span·class="p"·data-group-id=" | 146 | ··</span><span·class="n">Seconds</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">Milliseconds</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">Microseconds</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">int</span><span·class="p"·data-group-id="8973812457-3">(</span><span·class="p"·data-group-id="8973812457-3">)</span></code></pre><p><code·class="inline">SeqTraceInfo</code>·can·have·the·following·formats:</p><ul><li><p><strong><code·class="inline">{send,·Serial,·From,·To,·Message}</code></strong>·-·Used·when·a·process·<code·class="inline">From</code>·with·its |
| 147 | trace·token·flag·<code·class="inline">send</code>·set·to·<code·class="inline">true</code>·has·sent·information.·<code·class="inline">To</code>·may·be·a | 147 | trace·token·flag·<code·class="inline">send</code>·set·to·<code·class="inline">true</code>·has·sent·information.·<code·class="inline">To</code>·may·be·a |
| 148 | process·identifier,·a·registered·name·on·a·node·represented·as | 148 | process·identifier,·a·registered·name·on·a·node·represented·as |
| 149 | <code·class="inline">{NameAtom,·NodeAtom}</code>,·or·a·node·name·represented·as·an·atom.·<code·class="inline">From</code>·may·be·a | 149 | <code·class="inline">{NameAtom,·NodeAtom}</code>,·or·a·node·name·represented·as·an·atom.·<code·class="inline">From</code>·may·be·a |
| 150 | process·identifier·or·a·node·name·represented·as·an·atom.·<code·class="inline">Message</code>·contains | 150 | process·identifier·or·a·node·name·represented·as·an·atom.·<code·class="inline">Message</code>·contains |
| 151 | the·information·passed·along·in·this·information·transfer.·If·the·transfer·is | 151 | the·information·passed·along·in·this·information·transfer.·If·the·transfer·is |
| 152 | done·via·message·passing,·it·is·the·actual·message.</p></li><li><p><strong><code·class="inline">{'receive',·Serial,·From,·To,·Message}</code></strong>·-·Used·when·a·process·<code·class="inline">To</code> | 152 | done·via·message·passing,·it·is·the·actual·message.</p></li><li><p><strong><code·class="inline">{'receive',·Serial,·From,·To,·Message}</code></strong>·-·Used·when·a·process·<code·class="inline">To</code> |
| 153 | receives·information·with·a·trace·token·that·has·flag·<code·class="inline">'receive'</code>·set·to | 153 | receives·information·with·a·trace·token·that·has·flag·<code·class="inline">'receive'</code>·set·to |
| Offset 283, 76 lines modified | Offset 283, 76 lines modified | ||
| 283 | from·the·sequential·tracing·point·of·view.</p><h2·id="module-example-of-use"·class="section-heading"> | 283 | from·the·sequential·tracing·point·of·view.</p><h2·id="module-example-of-use"·class="section-heading"> |
| 284 | ··<a·href="#module-example-of-use"·class="hover-link"> | 284 | ··<a·href="#module-example-of-use"·class="hover-link"> |
| 285 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 285 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 286 | ··</a> | 286 | ··</a> |
| 287 | ··<span·class="text">Example·of·Use</span> | 287 | ··<span·class="text">Example·of·Use</span> |
| 288 | </h2> | 288 | </h2> |
| 289 | <p>This·example·gives·a·rough·idea·of·how·the·new·primitives·can·be·used·and·what | 289 | <p>This·example·gives·a·rough·idea·of·how·the·new·primitives·can·be·used·and·what |
| 290 | kind·of·output·it·produces.</p><p>Assume·that·you·have·an·initiating·process·with·<code·class="inline">Pid·==·<0.30.0></code>·like·this:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 290 | kind·of·output·it·produces.</p><p>Assume·that·you·have·an·initiating·process·with·<code·class="inline">Pid·==·<0.30.0></code>·like·this:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="3845000610-1">(</span><span·class="ss">seqex</span><span·class="p"·data-group-id="3845000610-1">)</span><span·class="p">.</span><span·class="w"> |
| 291 | </span><span·class="p">-</span><span·class="na">compile</span><span·class="p"·data-group-id=" | 291 | </span><span·class="p">-</span><span·class="na">compile</span><span·class="p"·data-group-id="3845000610-2">(</span><span·class="ss">export_all</span><span·class="p"·data-group-id="3845000610-2">)</span><span·class="p">.</span><span·class="w"> |
| 292 | </span><span·class="nf">loop</span><span·class="p"·data-group-id=" | 292 | </span><span·class="nf">loop</span><span·class="p"·data-group-id="3845000610-3">(</span><span·class="n">Port</span><span·class="p"·data-group-id="3845000610-3">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 293 | ····</span><span·class="k">receive</span><span·class="w"> | 293 | ····</span><span·class="k">receive</span><span·class="w"> |
| 294 | ········</span><span·class="p"·data-group-id=" | 294 | ········</span><span·class="p"·data-group-id="3845000610-4">{</span><span·class="n">Port</span><span·class="p">,</span><span·class="n">Message</span><span·class="p"·data-group-id="3845000610-4">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 295 | ············</span><span·class="nc">seq_trace</span><span·class="p">:</span><span·class="nf">set_token</span><span·class="p"·data-group-id=" | 295 | ············</span><span·class="nc">seq_trace</span><span·class="p">:</span><span·class="nf">set_token</span><span·class="p"·data-group-id="3845000610-5">(</span><span·class="ss">label</span><span·class="p">,</span><span·class="mi">17</span><span·class="p"·data-group-id="3845000610-5">)</span><span·class="p">,</span><span·class="w"> |
| 296 | ············</span><span·class="nc">seq_trace</span><span·class="p">:</span><span·class="nf">set_token</span><span·class="p"·data-group-id=" | 296 | ············</span><span·class="nc">seq_trace</span><span·class="p">:</span><span·class="nf">set_token</span><span·class="p"·data-group-id="3845000610-6">(</span><span·class="ss">'receive'</span><span·class="p">,</span><span·class="ss">true</span><span·class="p"·data-group-id="3845000610-6">)</span><span·class="p">,</span><span·class="w"> |
| 297 | ············</span><span·class="nc">seq_trace</span><span·class="p">:</span><span·class="nf">set_token</span><span·class="p"·data-group-id=" | 297 | ············</span><span·class="nc">seq_trace</span><span·class="p">:</span><span·class="nf">set_token</span><span·class="p"·data-group-id="3845000610-7">(</span><span·class="ss">print</span><span·class="p">,</span><span·class="ss">true</span><span·class="p"·data-group-id="3845000610-7">)</span><span·class="p">,</span><span·class="w"> |
| 298 | ············</span><span·class="nc">seq_trace</span><span·class="p">:</span><span·class="nf">print</span><span·class="p"·data-group-id=" | 298 | ············</span><span·class="nc">seq_trace</span><span·class="p">:</span><span·class="nf">print</span><span·class="p"·data-group-id="3845000610-8">(</span><span·class="mi">17</span><span·class="p">,</span><span·class="s">"****·Trace·Started·****"</span><span·class="p"·data-group-id="3845000610-8">)</span><span·class="p">,</span><span·class="w"> |
| 299 | ············</span><span·class="ss">call_server</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id=" | 299 | ············</span><span·class="ss">call_server</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id="3845000610-9">{</span><span·class="nf">self</span><span·class="p"·data-group-id="3845000610-10">(</span><span·class="p"·data-group-id="3845000610-10">)</span><span·class="p">,</span><span·class="ss">the_message</span><span·class="p"·data-group-id="38450006[·...·truncated·by·diffoscope;·len:·2,·SHA:·4a44dc15364204a80fe80e9039455cc1608281820fe2b24f1e5233ade6af1dd5·...·]-9">}</span><span·class="p">;</span><span·class="w"> |
| 300 | ········</span><span·class="p"·data-group-id=" | 300 | ········</span><span·class="p"·data-group-id="3845000610-11">{</span><span·class="ss">ack</span><span·class="p">,</span><span·class="n">Ack</span><span·class="p"·data-group-id="3845000610-11">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 301 | ············</span><span·class="ss">ok</span><span·class="w"> | 301 | ············</span><span·class="ss">ok</span><span·class="w"> |
| 302 | ····</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> | 302 | ····</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> |
| 303 | ····</span><span·class="nf">loop</span><span·class="p"·data-group-id=" | 303 | ····</span><span·class="nf">loop</span><span·class="p"·data-group-id="3845000610-12">(</span><span·class="n">Port</span><span·class="p"·data-group-id="3845000610-12">)</span><span·class="p">.</span></code></pre><p>And·a·registered·process·<code·class="inline">call_server</code>·with·<code·class="inline">Pid·==·<0.31.0>[·...·truncated·by·diffoscope;·len:·192,·SHA:·4b313a29bc2eb8e57cceba9e0f79d6b31bbb094874bba933467518905aaa49db·...·]-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 304 | ····</span><span·class="k">receive</span><span·class="w"> | 304 | ····</span><span·class="k">receive</span><span·class="w"> |
| 305 | ········</span><span·class="p"·data-group-id=" | 305 | ········</span><span·class="p"·data-group-id="9561694880-2">{</span><span·class="n">PortController</span><span·class="p">,</span><span·class="n">Message</span><span·class="p"·data-group-id="9561694880-2">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 306 | ············</span><span·class="n">Ack</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 306 | ············</span><span·class="n">Ack</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="9561694880-3">{</span><span·class="ss">received</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Message</span><span·class="p"·data-group-id="9561694880-3">}</span><span·class="p">,</span><span·class="w"> |
| 307 | ············</span><span·class="nc">seq_trace</span><span·class="p">:</span><span·class="nf">print</span><span·class="p"·data-group-id=" | 307 | ············</span><span·class="nc">seq_trace</span><span·class="p">:</span><span·class="nf">print</span><span·class="p"·data-group-id="9561694880-4">(</span><span·class="mi">17</span><span·class="p">,</span><span·class="s">"We·are·here·now"</span><span·class="p"·data-group-id="9561694880-4">)</span><span·class="p">,</span><span·class="w"> |
| 308 | ············</span><span·class="n">PortController</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id=" | 308 | ············</span><span·class="n">PortController</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id="9561694880-5">{</span><span·class="ss">ack</span><span·class="p">,</span><span·class="n">Ack</span><span·class="p"·data-group-id="9561694880-5">}</span><span·class="w"> |
| 309 | ····</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> | 309 | ····</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> |
| 310 | ····</span><span·class="nf">loop</span><span·class="p"·data-group-id=" | 310 | ····</span><span·class="nf">loop</span><span·class="p"·data-group-id="9561694880-6">(</span><span·class="p"·data-group-id="9561694880-6">)</span><span·class="p">.</span></code></pre><p>A·possible·output·from·the·system's·<code·class="inline">sequential_tracer</code>·can·be·like·this:</p><pre><code·class="makeup·erlang"·trans[·...·truncated·by·diffoscope;·len:·434,·SHA:·3f6eb7ad3384f0e795e252ddf7ec235a5539bcb86bc3d46811d40c3b739f49f1·...·]-1">}</span><span·class="w">·</span><span·class="n">WITH</span><span·class="w"> |
| 311 | </span><span·class="s">"****·Trace·Started·****"</span><span·class="w"> | 311 | </span><span·class="s">"****·Trace·Started·****"</span><span·class="w"> |
| 312 | </span><span·class="mi">17</span><span·class="p">:</span><span·class="o"><</span><span·class="mf">0.31</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="w">·</span><span·class="n">Received</span><span·class="w">·</span><span·class="p"·data-group-id=" | 312 | </span><span·class="mi">17</span><span·class="p">:</span><span·class="o"><</span><span·class="mf">0.31</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="w">·</span><span·class="n">Received</span><span·class="w">·</span><span·class="p"·data-group-id="1703462546-2">{</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">2</span><span·class="p"·data-group-id="1703462546-2">}</span><span·class="w">·</span><span·class="n">FROM</span><span·class="w">·</span><span·class="o"><</span><span·class="mf">0.30</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="w">·</span><span·class="n">WITH</span><span·class="w"> |
| 313 | </span><span·class="p"·data-group-id=" | 313 | </span><span·class="p"·data-group-id="1703462546-3">{</span><span·class="o"><</span><span·class="mf">0.30</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="p">,</span><span·class="ss">the_message</span><span·class="p"·data-group-id="1703462546-3">}</span><span·class="w"> |
| 314 | </span><span·class="mi">17</span><span·class="p">:</span><span·class="o"><</span><span·class="mf">0.31</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="w">·</span><span·class="n">Info</span><span·class="w">·</span><span·class="p"·data-group-id=" | 314 | </span><span·class="mi">17</span><span·class="p">:</span><span·class="o"><</span><span·class="mf">0.31</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="w">·</span><span·class="n">Info</span><span·class="w">·</span><span·class="p"·data-group-id="1703462546-4">{</span><span·class="mi">2</span><span·class="p">,</span><span·class="mi">3</span><span·class="p"·data-group-id="1703462546-4">}</span><span·class="w">·</span><span·class="n">WITH</span><span·class="w"> |
| 315 | </span><span·class="s">"We·are·here·now"</span><span·class="w"> | 315 | </span><span·class="s">"We·are·here·now"</span><span·class="w"> |
| 316 | </span><span·class="mi">17</span><span·class="p">:</span><span·class="o"><</span><span·class="mf">0.30</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="w">·</span><span·class="n">Received</span><span·class="w">·</span><span·class="p"·data-group-id=" | 316 | </span><span·class="mi">17</span><span·class="p">:</span><span·class="o"><</span><span·class="mf">0.30</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="w">·</span><span·class="n">Received</span><span·class="w">·</span><span·class="p"·data-group-id="1703462546-5">{</span><span·class="mi">2</span><span·class="p">,</span><span·class="mi">4</span><span·class="p"·data-group-id="1703462546-5">}</span><span·class="w">·</span><span·class="n">FROM</span><span·class="w">·</span><span·class="o"><</span><span·class="mf">0.31</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="w">·</span><span·class="n">WITH</span><span·class="w"> |
| 317 | </span><span·class="p"·data-group-id=" | 317 | </span><span·class="p"·data-group-id="1703462546-6">{</span><span·class="ss">ack</span><span·class="p">,</span><span·class="p"·data-group-id="1703462546-7">{</span><span·class="ss">received</span><span·class="p">,</span><span·class="ss">the_message</span><span·class="p"·data-group-id="17034625[·...·truncated·by·diffoscope;·len:·55,·SHA:·41336ef37474753538a13724fe4a33bf88d0c874ec540b32b320641629fcfc5c·...·]-6">}</span></code></pre><p>The·implementation·of·a·system·tracer·process·that·produces·this·printout·can |
| 318 | look·like·this:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">tracer</span><span·class="p"·data-group-id=" | 318 | look·like·this:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">tracer</span><span·class="p"·data-group-id="2791868702-1">(</span><span·class="p"·data-group-id="2791868702-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 319 | ····</span><span·class="k">receive</span><span·class="w"> | 319 | ····</span><span·class="k">receive</span><span·class="w"> |
| 320 | ········</span><span·class="p"·data-group-id=" | 320 | ········</span><span·class="p"·data-group-id="2791868702-2">{</span><span·class="ss">seq_trace</span><span·class="p">,</span><span·class="n">Label</span><span·class="p">,</span><span·class="n">TraceInfo</span><span·class="p"·data-group-id="2791868702-2">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 321 | ···········</span><span·class="nf">print_trace</span><span·class="p"·data-group-id=" | 321 | ···········</span><span·class="nf">print_trace</span><span·class="p"·data-group-id="2791868702-3">(</span><span·class="n">Label</span><span·class="p">,</span><span·class="n">TraceInfo</span><span·class="p">,</span><span·class="ss">false</span><span·class="p"·data-group-id="2791868702-3">)</span><span·class="p">;</span><span·class="w"> |
| 322 | ········</span><span·class="p"·data-group-id=" | 322 | ········</span><span·class="p"·data-group-id="2791868702-4">{</span><span·class="ss">seq_trace</span><span·class="p">,</span><span·class="n">Label</span><span·class="p">,</span><span·class="n">TraceInfo</span><span·class="p">,</span><span·class="n">Ts</span><span·class="p"·data-group-id="2791868702-4">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 323 | ···········</span><span·class="nf">print_trace</span><span·class="p"·data-group-id=" | 323 | ···········</span><span·class="nf">print_trace</span><span·class="p"·data-group-id="2791868702-5">(</span><span·class="n">Label</span><span·class="p">,</span><span·class="n">TraceInfo</span><span·class="p">,</span><span·class="n">Ts</span><span·class="p"·data-group-id="2791868702-5">)</span><span·class="p">;</span><span·class="w"> |
| 324 | ········</span><span·class="p">_</span><span·class="n">Other</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">ignore</span><span·class="w"> | 324 | ········</span><span·class="p">_</span><span·class="n">Other</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">ignore</span><span·class="w"> |
| 325 | ····</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> | 325 | ····</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> |
| 326 | ····</span><span·class="nf">tracer</span><span·class="p"·data-group-id=" | 326 | ····</span><span·class="nf">tracer</span><span·class="p"·data-group-id="2791868702-6">(</span><span·class="p"·data-group-id="2791868702-6">)</span><span·class="p">.</span><span·class="w"> |
| 327 | </span><span·class="nf">print_trace</span><span·class="p"·data-group-id=" | 327 | </span><span·class="nf">print_trace</span><span·class="p"·data-group-id="2791868702-7">(</span><span·class="n">Label</span><span·class="p">,</span><span·class="n">TraceInfo</span><span·class="p">,</span><span·class="ss">false</span><span·class="p"·data-group-id="2791868702-7">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 328 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 328 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="2791868702-8">(</span><span·class="s">"</span><span·class="si">~p</span><span·class="s">:"</span><span·class="p">,</span><span·class="p"·data-group-id="2791868702-9">[</span><span·class="n">Label</span><span·class="p"·data-group-id="2791868702-9"[·...·truncated·by·diffoscope;·len:·50,·SHA:·b5efeed4b5a46e6fc79a19239141b0598c25b4070f96e10c3ecaf0635c3d9f8c·...·]-8">)</span><span·class="p">,</span><span·class="w"> |
| 329 | ····</span><span·class="nf">print_trace</span><span·class="p"·data-group-id=" | 329 | ····</span><span·class="nf">print_trace</span><span·class="p"·data-group-id="2791868702-10">(</span><span·class="n">TraceInfo</span><span·class="p"·data-group-id="2791868702-10">)</span><span·class="p">;</span><span·class="w"> |
| 330 | </span><span·class="nf">print_trace</span><span·class="p"·data-group-id=" | 330 | </span><span·class="nf">print_trace</span><span·class="p"·data-group-id="2791868702-11">(</span><span·class="n">Label</span><span·class="p">,</span><span·class="n">TraceInfo</span><span·class="p">,</span><span·class="n">Ts</span><span·class="p"·data-group-id="2791868702-11">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 331 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 331 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="2791868702-12">(</span><span·class="s">"</span><span·class="si">~p</span><span·class="s">·</span><span·class="si">~p</span><span·class="s">:"</span><span·class="p">,</span><span·class="p"·data-group-id="2791868702-13">[</span><span·class="n">Labe[·...·truncated·by·diffoscope;·len:·152,·SHA:·86e07f80997cd2a19d9677de9938624507022e12494e867969f42af96a3a0ee7·...·]-12">)</span><span·class="p">,</span><span·class="w"> |
| 332 | ····</span><span·class="nf">print_trace</span><span·class="p"·data-group-id=" | 332 | ····</span><span·class="nf">print_trace</span><span·class="p"·data-group-id="2791868702-14">(</span><span·class="n">TraceInfo</span><span·class="p"·data-group-id="2791868702-14">)</span><span·class="p">.</span><span·class="w"> |
| 333 | </span><span·class="nf">print_trace</span><span·class="p"·data-group-id=" | 333 | </span><span·class="nf">print_trace</span><span·class="p"·data-group-id="2791868702-15">(</span><span·class="p"·data-group-id="2791868702-16">{</span><span·class="ss">print</span><span·class="p">,</span><span·class="n">Serial</span><span·class="p">,</span><span·class="n">From</span><span·class="p">,</span><span·class="p">_</spa[·...·truncated·by·diffoscope;·len:·148,·SHA:·45c68c76de126a65b48dd27ec6906e7ee7c6c30e487120885c82a033d6da3ebe·...·]-15">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 334 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 334 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="2791868702-17">(</span><span·class="s">"</span><span·class="si">~p</span><span·class="s">·Info·</span><span·class="si">~p</span><span·class="s">·WITH</span><span·class="si">~n</span><span·class="si">~p</span><span·class="si">~n</span><span·class="s">&[·...·truncated·by·diffoscope;·len:·340,·SHA:·867cf98489a26d68211d259e33655160a4cd33c0f5edb6a9e60ceb79a70b4c86·...·]-17">)</span><span·class="p">;</span><span·class="w"> |
| 335 | </span><span·class="nf">print_trace</span><span·class="p"·data-group-id=" | 335 | </span><span·class="nf">print_trace</span><span·class="p"·data-group-id="2791868702-19">(</span><span·class="p"·data-group-id="2791868702-20">{</span><span·class="ss">'receive'</span><span·class="p">,</span><span·class="n">Serial</span><span·class="p">,</span><span·class="n">From</span><span·class="p">,</span><span·clas[·...·truncated·by·diffoscope;·len:·164,·SHA:·c02387c85d34ae2ce58fc45c4f1a6518c0f3d554905a3b9e1a69fb598d0c756d·...·]-19">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 336 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 336 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="2791868702-21">(</span><span·class="s">"</span><span·class="si">~p</span><span·class="s">·Received·</span><span·class="si">~p</span><span·class="s">·FROM·</span><span·class="si">~p</span><span·class="s">·WITH</span><span·class="si">~n</span><span·class="si">~p</span><span·class="si">~n</span><span·class="s">"</span><span·class="p">,</span><span·class="w"> |
| 337 | ··············</span><span·class="p"·data-group-id=" | 337 | ··············</span><span·class="p"·data-group-id="2791868702-22">[</span><span·class="n">To</span><span·class="p">,</span><span·class="n">Serial</span><span·class="p">,</span><span·class="n">From</span><span·class="p">,</span><span·class="n">Message</span><span·class="p"·data-group-id="2791868702-22">]</s[·...·truncated·by·diffoscope;·len:·45,·SHA:·ef0ce33d766e29aeb15603900fdf0d7dd9ffd70ba5dcba64fc0c97b245e46fe9·...·]-21">)</span><span·class="p">;</span><span·class="w"> |
| 338 | </span><span·class="nf">print_trace</span><span·class="p"·data-group-id=" | 338 | </span><span·class="nf">print_trace</span><span·class="p"·data-group-id="2791868702-23">(</span><span·class="p"·data-group-id="2791868702-24">{</span><span·class="nb">send</span><span·class="p">,</span><span·class="n">Serial</span><span·class="p">,</span><span·class="n">From</span><span·class="p">,</span><span·class="n">To</spa[·...·truncated·by·diffoscope;·len:·151,·SHA:·bb74d9203285ef84fbe3f916f476ecb1dc6cdae4c8afd3d3e39c4a68886f386d·...·]-23">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 339 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 339 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="2791868702-25">(</span><span·class="s">"</span><span·class="si">~p</span><span·class="s">·Sent·</span><span·class="si">~p</span><span·class="s">·TO·</span><span·class="si">~p</span><span·class="s">·WITH</span><span·class="si">~n</span><span·class="si">~p</span><span·class="si">~n</span><span·class="s">"</span><span·class="p">,</span><span·class="w"> |
| 340 | ··············</span><span·class="p"·data-group-id=" | 340 | ··············</span><span·class="p"·data-group-id="2791868702-26">[</span><span·class="n">From</span><span·class="p">,</span><span·class="n">Serial</span><span·class="p">,</span><span·class="n">To</span><span·class="p">,</span><span·class="n">Message</span><span·class="p"·data-group-id="2791868702-26">]</s[·...·truncated·by·diffoscope;·len:·45,·SHA:·ef0ce33d766e29aeb15603900fdf0d7dd9ffd70ba5dcba64fc0c97b245e46fe9·...·]-25">)</span><span·class="p">.</span></code></pre><p>The·code·that·creates·a·process·that·runs·this·tracer·function·and·sets·that |
| 341 | process·as·the·system·tracer·can·look·like·this:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">start</span><span·class="p"·data-group-id=" | 341 | process·as·the·system·tracer·can·look·like·this:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">start</span><span·class="p"·data-group-id="0031670816-1">(</span><span·class="p"·data-group-id="0031670816-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 342 | ····</span><span·class="n">Pid</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">spawn</span><span·class="p"·data-group-id=" | 342 | ····</span><span·class="n">Pid</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">spawn</span><span·class="p"·data-group-id="0031670816-2">(</span><span·class="o">?</span><span·class="n">MODULE</span><span·class="p">,</span><span·class="ss">tracer</span><span·class="p">,</span><span·class="p"·data-group-id="0031670816-3">[</span><span·class="p"·data-group-id="0031670816-3">]</sp[·...·truncated·by·diffoscope;·len:·44,·SHA:·a871874f045af0675b38c4d42327be165405572b362a760a3e7473d992766de1·...·]-2">)</span><span·class="p">,</span><span·class="w"> |
| 343 | ····</span><span·class="nc">seq_trace</span><span·class="p">:</span><span·class="nf">set_system_tracer</span><span·class="p"·data-group-id=" | 343 | ····</span><span·class="nc">seq_trace</span><span·class="p">:</span><span·class="nf">set_system_tracer</span><span·class="p"·data-group-id="0031670816-4">(</span><span·class="n">Pid</span><span·class="p"·data-group-id="0031670816-4">)</span><span·class="p">,</span><span·class="w">·</span><span·class="c1">%·set·Pid·as·the·system·tracer</span><span·class="w"> |
| 344 | ····</span><span·class="ss">ok</span><span·class="p">.</span></code></pre><p>With·a·function·like·<code·class="inline">test/0</code>,·the·whole·example·can·be·started:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">test</span><span·class="p"·data-group-id=" | 344 | ····</span><span·class="ss">ok</span><span·class="p">.</span></code></pre><p>With·a·function·like·<code·class="inline">test/0</code>,·the·whole·example·can·be·started:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">test</span><span·class="p"·data-group-id="2795583635-1">(</span><span·class="p"·data-group-id="2795583635-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 345 | ····</span><span·class="n">P</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">spawn</span><span·class="p"·data-group-id=" | 345 | ····</span><span·class="n">P</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">spawn</span><span·class="p"·data-group-id="2795583635-2">(</span><span·class="o">?</span><span·class="n">MODULE</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">loop</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2795583635-3">[</span><spa[·...·truncated·by·diffoscope;·len:·118,·SHA:·634eea549db913c20782b23ab42c50727bc8dc61985528d75bf061651093d69f·...·]-2">)</span><span·class="p">,</span><span·class="w"> |
| 346 | ····</span><span·class="nf">register</span><span·class="p"·data-group-id=" | 346 | ····</span><span·class="nf">register</span><span·class="p"·data-group-id="2795583635-4">(</span><span·class="ss">call_server</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">spawn</span><span·class="p"·data-group-id="2795583635-5">(</span><span·class="o">?</span><span·class="n">MODULE</span><span·class="p">[·...·truncated·by·diffoscope;·len:·308,·SHA:·0225db0af90a7aa8537e7b202bbf01545476e8e99e4a12c815ccb24b22d4c352·...·]-4">)</span><span·class="p">,</span><span·class="w"> |
| 347 | ····</span><span·class="nf">start</span><span·class="p"·data-group-id=" | 347 | ····</span><span·class="nf">start</span><span·class="p"·data-group-id="2795583635-7">(</span><span·class="p"·data-group-id="2795583635-7">)</span><span·class="p">,</span><span·class="w"> |
| 348 | ····</span><span·class="n">P</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id=" | 348 | ····</span><span·class="n">P</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id="2795583635-8">{</span><span·class="ss">port</span><span·class="p">,</span><span·class="ss">message</span><span·class="p"·data-group-id="2795583635-8">}</span><span·class="p">.</span></code></pre> |
| 349 | ····</section> | 349 | ····</section> |
| 350 | </div> | 350 | </div> |
| 351 | ··<section·id="summary"·class="details-list"> | 351 | ··<section·id="summary"·class="details-list"> |
| 352 | ····<h1·class="section-heading"> | 352 | ····<h1·class="section-heading"> |
| 353 | ······<a·class="hover-link"·href="#summary"> | 353 | ······<a·class="hover-link"·href="#summary"> |
| Offset 907, 19 lines modified | Offset 907, 19 lines modified | ||
| 907 | ······</div> | 907 | ······</div> |
| 908 | <p>Sets·the·trace·token·for·the·calling·process·to·<code·class="inline">Token</code>.·If·<code·class="inline">Token·==·[]</code>·then | 908 | <p>Sets·the·trace·token·for·the·calling·process·to·<code·class="inline">Token</code>.·If·<code·class="inline">Token·==·[]</code>·then |
| 909 | tracing·is·disabled,·otherwise·<code·class="inline">Token</code>·should·be·an·Erlang·term·returned·from | 909 | tracing·is·disabled,·otherwise·<code·class="inline">Token</code>·should·be·an·Erlang·term·returned·from |
| 910 | <a·href="#get_token/0"><code·class="inline">get_token/0</code></a>·or·<a·href="#set_token/1"><code·class="inline">set_token/1</code></a>.·<a·href="#set_token/1"><code·class="inline">set_token/1</code></a> | 910 | <a·href="#get_token/0"><code·class="inline">get_token/0</code></a>·or·<a·href="#set_token/1"><code·class="inline">set_token/1</code></a>.·<a·href="#set_token/1"><code·class="inline">set_token/1</code></a> |
| 911 | can·be·used·to·temporarily·exclude·message·passing·from·the·trace·by·setting·the | 911 | can·be·used·to·temporarily·exclude·message·passing·from·the·trace·by·setting·the |
| 912 | trace·token·to·empty·like·this:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">OldToken</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">seq_trace</span><span·class="p">:</span><span·class="nf">set_token</span><span·class="p"·data-group-id=" | 912 | trace·token·to·empty·like·this:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">OldToken</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">seq_trace</span><span·class="p">:</span><span·class="nf">set_token</span><span·class="p"·data-group-id="9348034339-1">(</span><span·class="p"·data-group-id="9348034339-2">[</span><span·class="p"·data-group-id="9348034339-2">]</span><span·class="p"·data-group-id="9348034339-1">)</span><span·class="p">,</span><span·class="w">·</span><span·class="c1">%·set·to·empty·and·save</span><span·class="w"> |
| 913 | ····································</span><span·class="c1">%·old·value</span><span·class="w"> | 913 | ····································</span><span·class="c1">%·old·value</span><span·class="w"> |
| 914 | </span><span·class="c1">%·do·something·that·should·not·be·part·of·the·trace</span><span·class="w"> | 914 | </span><span·class="c1">%·do·something·that·should·not·be·part·of·the·trace</span><span·class="w"> |
| 915 | </span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 915 | </span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="9348034339-3">(</span><span·class="s">"Exclude·the·signalling·caused·by·this</span><span·class="si">~n</span><span·class="s">"</span><span·class="p"·data-group-id="9348034339-3">)</span><span·class="p">,</span><span·class="w"> |
| 916 | </span><span·class="nc">seq_trace</span><span·class="p">:</span><span·class="nf">set_token</span><span·class="p"·data-group-id=" | 916 | </span><span·class="nc">seq_trace</span><span·class="p">:</span><span·class="nf">set_token</span><span·class="p"·data-group-id="9348034339-4">(</span><span·class="n">OldToken</span><span·class="p"·data-group-id="9348034339-4">)</span><span·class="p">,</span><span·class="w">·</span><span·class="c1">%·activate·the·trace·token·again</span><span·class="w"> |
| 917 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span></code></pre><p>Returns·the·previous·value·of·the·trace·token.</p> | 917 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span></code></pre><p>Returns·the·previous·value·of·the·trace·token.</p> |
| 918 | ··</section> | 918 | ··</section> |
| 919 | </section> | 919 | </section> |
| 920 | <section·class="detail"·id="set_token/2"> | 920 | <section·class="detail"·id="set_token/2"> |
| 921 | ··<div·class="detail-header"> | 921 | ··<div·class="detail-header"> |
| 922 | ····<a·href="#set_token/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 922 | ····<a·href="#set_token/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| Offset 1001, 15 lines modified | Offset 1001, 15 lines modified | ||
| 1001 | ······<p·class="built-using"> | 1001 | ······<p·class="built-using"> |
| 1002 | ········Built·using | 1002 | ········Built·using |
| 1003 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1003 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1004 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1004 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1005 | ······</p> | 1005 | ······</p> |
| 1006 | <p>Copyright·©·1996-202 | 1006 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1007 | ····</footer> | 1007 | ····</footer> |
| 1008 | ··</div> | 1008 | ··</div> |
| 1009 | </main> | 1009 | </main> |
| 1010 | </div> | 1010 | </div> |
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| 184 | will·then·be·the·<a·href="#t:select_handle/0"><code·class="inline">SelectHandle</code></a>·in·the·returned | 184 | will·then·be·the·<a·href="#t:select_handle/0"><code·class="inline">SelectHandle</code></a>·in·the·returned |
| 185 | <a·href="#t:select_info/0"><code·class="inline">select_info/0</code></a>·and·the·received·<code·class="inline">select</code>·message,·or·be | 185 | <a·href="#t:select_info/0"><code·class="inline">select_info/0</code></a>·and·the·received·<code·class="inline">select</code>·message,·or·be |
| 186 | the·<a·href="#t:completion_handle/0"><code·class="inline">CompletionHandle</code></a>·in·the·returned | 186 | the·<a·href="#t:completion_handle/0"><code·class="inline">CompletionHandle</code></a>·in·the·returned |
| 187 | <a·href="#t:completion_info/0"><code·class="inline">completion_info/0</code></a>·and·the·received·<code·class="inline">completion</code>·message.</p><p>The·compiler·may·then·optimize·a·following·<code·class="inline">receive</code>·statement | 187 | <a·href="#t:completion_info/0"><code·class="inline">completion_info/0</code></a>·and·the·received·<code·class="inline">completion</code>·message.</p><p>The·compiler·may·then·optimize·a·following·<code·class="inline">receive</code>·statement |
| 188 | to·only·scan·the·messages·that·arrive·after·the·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:reference/0"><code·class="inline">reference/0</code></a> | 188 | to·only·scan·the·messages·that·arrive·after·the·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:reference/0"><code·class="inline">reference/0</code></a> |
| 189 | is·created.··If·the·message·queue·is·large·this·is·a·big·optimization.</p><p>It·is·not·possible·to·have·more·than·one·operation·in·progress | 189 | is·created.··If·the·message·queue·is·large·this·is·a·big·optimization.</p><p>It·is·not·possible·to·have·more·than·one·operation·in·progress |
| 190 | with·the·same·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:reference/0"><code·class="inline">reference/0</code></a>.</p><h4>Repeating·an·Operation·on·a·<code·class="inline">select</code>·Systems</h4><p>On<code·class="inline">select</code>·systems,·if·a·call·would·be·repeated·<em>before</em>·the·<code·class="inline">select</code> | 190 | with·the·same·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:reference/0"><code·class="inline">reference/0</code></a>.</p><h4>Repeating·an·Operation·on·a·<code·class="inline">select</code>·Systems</h4><p>On<code·class="inline">select</code>·systems,·if·a·call·would·be·repeated·<em>before</em>·the·<code·class="inline">select</code> |
| 191 | message·has·been·received·it·replaces·the·operation·in·progress:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">····</span><span·class="p"·data-group-id=" | 191 | message·has·been·received·it·replaces·the·operation·in·progress:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">····</span><span·class="p"·data-group-id="8251454424-1">{</span><span·class="ss">select</span><span·class="p">,</span><span·class="err"> </span><span·class="p"·data-group-id="8251454424-2">{</span><span·class="ss">select_info</span><span·class="p">,</span><span·class="err"> </span><span·class="n">[·...·truncated·by·diffoscope;·len:·477,·SHA:·6e1b2202fd80ad00ae17e088f06faf35f1ad5967bdff9114608f2c471711c7ca·...·]-3">)</span><span·class="p">,</span><span·class="w"> |
| 192 | ····</span><span·class="p"·data-group-id=" | 192 | ····</span><span·class="p"·data-group-id="8251454424-4">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="err"> </span><span·class="n">Socket</span><span·class="p"·data-group-id="8251454424-4">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><spa[·...·truncated·by·diffoscope;·len:·280,·SHA:·ef9abd395e165b6102b1b7e591efb376ff13e282498e0e34712d1c2baba85e17·...·]-5">)</span><span·class="p">,</span><span·class="w"> |
| 193 | ····</span><span·class="p">:</span></code></pre><p>Above,·<code·class="inline">Handle</code>·is·<em>no·longer</em>·valid·once·the·second·<a·href="#accept/2"><code·class="inline">accept/2</code></a>,·call | 193 | ····</span><span·class="p">:</span></code></pre><p>Above,·<code·class="inline">Handle</code>·is·<em>no·longer</em>·valid·once·the·second·<a·href="#accept/2"><code·class="inline">accept/2</code></a>,·call |
| 194 | has·been·made·(the·first·call·is·automatically·canceled). | 194 | has·been·made·(the·first·call·is·automatically·canceled). |
| 195 | After·the·second·<a·href="#accept/2"><code·class="inline">accept/2</code></a>·call·returns,·the·accept·operation | 195 | After·the·second·<a·href="#accept/2"><code·class="inline">accept/2</code></a>·call·returns,·the·accept·operation |
| 196 | has·completed.</p><p>Note·that·there·is·a·race·here;·there·is·no·way·to·know·if·the·call | 196 | has·completed.</p><p>Note·that·there·is·a·race·here;·there·is·no·way·to·know·if·the·call |
| 197 | is·repeated·<em>before</em>·the·<code·class="inline">select</code>·message·is·sent·since·it·<em>may</em> | 197 | is·repeated·<em>before</em>·the·<code·class="inline">select</code>·message·is·sent·since·it·<em>may</em> |
| 198 | have·been·sent·just·before·the·repeated·call.··So·now·there | 198 | have·been·sent·just·before·the·repeated·call.··So·now·there |
| 199 | might·be·a·<code·class="inline">select</code>·message·containing·<code·class="inline">Handle</code>·in·the·inbox.</p><h4>The·<code·class="inline">abort</code>·Message</h4><p>Another·message·the·user·must·be·prepared·for | 199 | might·be·a·<code·class="inline">select</code>·message·containing·<code·class="inline">Handle</code>·in·the·inbox.</p><h4>The·<code·class="inline">abort</code>·Message</h4><p>Another·message·the·user·must·be·prepared·for |
| Offset 218, 36 lines modified | Offset 218, 36 lines modified | ||
| 218 | (<a·href="#t:completion_handle/0">completion·handle</a>) | 218 | (<a·href="#t:completion_handle/0">completion·handle</a>) |
| 219 | API·features·could·be·considered·no·longer·experimental.</li></ul><h2·id="module-examples"·class="section-heading"> | 219 | API·features·could·be·considered·no·longer·experimental.</li></ul><h2·id="module-examples"·class="section-heading"> |
| 220 | ··<a·href="#module-examples"·class="hover-link"> | 220 | ··<a·href="#module-examples"·class="hover-link"> |
| 221 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 221 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 222 | ··</a> | 222 | ··</a> |
| 223 | ··<span·class="text">Examples</span> | 223 | ··<span·class="text">Examples</span> |
| 224 | </h2> | 224 | </h2> |
| 225 | <pre><code·class="makeup·erlang"·translate="no"><span·class="nf">client</span><span·class="p"·data-group-id=" | 225 | <pre><code·class="makeup·erlang"·translate="no"><span·class="nf">client</span><span·class="p"·data-group-id="1913858248-1">(</span><span·class="n">SAddr</span><span·class="p">,</span><span·class="w">·</span><span·class="n">SPort</span><span·class="p"·data-group-id="1913858248-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 226 | ···</span><span·class="p"·data-group-id=" | 226 | ···</span><span·class="p"·data-group-id="1913858248-2">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Sock</span><span·class="p"·data-group-id="1913858248-2">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·cl[·...·truncated·by·diffoscope;·len:·349,·SHA:·02b4147c1ee7e4adf379d6472742eaedccf30b7ef9f621a5dd943b55e951dfc9·...·]-3">)</span><span·class="p">,</span><span·class="w"> |
| 227 | ···</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">socket</span><span·class="p">:</span><span·class="nf">connect</span><span·class="p"·data-group-id=" | 227 | ···</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">socket</span><span·class="p">:</span><span·class="nf">connect</span><span·class="p"·data-group-id="1913858248-4">(</span><span·class="n">Sock</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1913858248-5">#{</span><span·class="ss">family</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">inet</span><span·class="p">,</span><span·class="w"> |
| 228 | ·······························</span><span·class="ss">addr</span><span·class="w">···</span><span·class="p">=></span><span·class="w">·</span><span·class="n">SAddr</span><span·class="p">,</span><span·class="w"> | 228 | ·······························</span><span·class="ss">addr</span><span·class="w">···</span><span·class="p">=></span><span·class="w">·</span><span·class="n">SAddr</span><span·class="p">,</span><span·class="w"> |
| 229 | ·······························</span><span·class="ss">port</span><span·class="w">···</span><span·class="p">=></span><span·class="w">·</span><span·class="n">SPort</span><span·class="p"·data-group-id=" | 229 | ·······························</span><span·class="ss">port</span><span·class="w">···</span><span·class="p">=></span><span·class="w">·</span><span·class="n">SPort</span><span·class="p"·data-group-id="1913858248-5">}</span><span·class="p"·data-group-id="1913858248-4">)</span><span·class="p">,</span><span·class="w"> |
| 230 | ···</span><span·class="n">Msg</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 230 | ···</span><span·class="n">Msg</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="1913858248-6"><<</span><span·class="s">"hello"</span><span·class="p"·data-group-id="1913858248-6">>></span><span·class="p">,</span><span·class="w"> |
| 231 | ···</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">socket</span><span·class="p">:</span><span·class="nf">send</span><span·class="p"·data-group-id=" | 231 | ···</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">socket</span><span·class="p">:</span><span·class="nf">send</span><span·class="p"·data-group-id="1913858248-7">(</span><span·class="n">Sock</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Msg</span><span·class="p"·data-group-id="1913858248-7">)</span><span·class="p">,</span><span·class="w"> |
| 232 | ···</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">socket</span><span·class="p">:</span><span·class="nf">shutdown</span><span·class="p"·data-group-id=" | 232 | ···</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">socket</span><span·class="p">:</span><span·class="nf">shutdown</span><span·class="p"·data-group-id="1913858248-8">(</span><span·class="n">Sock</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">write</span><span·class="p"·data-group-id="1913858248-8">)</span><span·class="p">,</span><span·class="w"> |
| 233 | ···</span><span·class="p"·data-group-id=" | 233 | ···</span><span·class="p"·data-group-id="1913858248-9">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Msg</span><span·class="p"·data-group-id="1913858248-9">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·cla[·...·truncated·by·diffoscope;·len:·195,·SHA:·222f63429b06b28f4648278464b565d66e9f1486fbc266e5bf3ef3d25eae216d·...·]-10">)</span><span·class="p">,</span><span·class="w"> |
| 234 | ···</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">socket</span><span·class="p">:</span><span·class="nf">close</span><span·class="p"·data-group-id=" | 234 | ···</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">socket</span><span·class="p">:</span><span·class="nf">close</span><span·class="p"·data-group-id="1913858248-11">(</span><span·class="n">Sock</span><span·class="p"·data-group-id="1913858248-11">)</span><span·class="p">.</span><span·class="w"> |
| 235 | </span><span·class="nf">server</span><span·class="p"·data-group-id=" | 235 | </span><span·class="nf">server</span><span·class="p"·data-group-id="1913858248-12">(</span><span·class="n">Addr</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Port</span><span·class="p"·data-group-id="1913858248-12">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 236 | ···</span><span·class="p"·data-group-id=" | 236 | ···</span><span·class="p"·data-group-id="1913858248-13">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">LSock</span><span·class="p"·data-group-id="1913858248-13">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span[·...·truncated·by·diffoscope;·len:·353,·SHA:·a991e42065b423ea962b607eb416d0ee81f2720d71fb12ee1486358942b4df22·...·]-14">)</span><span·class="p">,</span><span·class="w"> |
| 237 | ···</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">socket</span><span·class="p">:</span><span·class="nf">bind</span><span·class="p"·data-group-id=" | 237 | ···</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">socket</span><span·class="p">:</span><span·class="nf">bind</span><span·class="p"·data-group-id="1913858248-15">(</span><span·class="n">LSock</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1913858248-16">#{</span><span·class="ss">family</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">inet</span><span·class="p">,</span><span·class="w"> |
| 238 | ·····························</span><span·class="ss">port</span><span·class="w">···</span><span·class="p">=></span><span·class="w">·</span><span·class="n">Port</span><span·class="p">,</span><span·class="w"> | 238 | ·····························</span><span·class="ss">port</span><span·class="w">···</span><span·class="p">=></span><span·class="w">·</span><span·class="n">Port</span><span·class="p">,</span><span·class="w"> |
| 239 | ·····························</span><span·class="ss">addr</span><span·class="w">···</span><span·class="p">=></span><span·class="w">·</span><span·class="n">Addr</span><span·class="p"·data-group-id=" | 239 | ·····························</span><span·class="ss">addr</span><span·class="w">···</span><span·class="p">=></span><span·class="w">·</span><span·class="n">Addr</span><span·class="p"·data-group-id="1913858248-16">}</span><span·class="p"·data-group-id="1913858248-15">)</span><span·class="p">,</span><span·class="w"> |
| 240 | ···</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">socket</span><span·class="p">:</span><span·class="nf">listen</span><span·class="p"·data-group-id=" | 240 | ···</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">socket</span><span·class="p">:</span><span·class="nf">listen</span><span·class="p"·data-group-id="1913858248-17">(</span><span·class="n">LSock</span><span·class="p"·data-group-id="1913858248-17">)</span><span·class="p">,</span><span·class="w"> |
| 241 | ···</span><span·class="p"·data-group-id=" | 241 | ···</span><span·class="p"·data-group-id="1913858248-18">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Sock</span><span·class="p"·data-group-id="1913858248-18">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·[·...·truncated·by·diffoscope;·len:·201,·SHA:·6f2dd70bd61b9b9113b6be3a01b20c65e4ad69f431879b3bf7619cde9b0680cb·...·]-19">)</span><span·class="p">,</span><span·class="w"> |
| 242 | ···</span><span·class="p"·data-group-id=" | 242 | ···</span><span·class="p"·data-group-id="1913858248-20">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Msg</span><span·class="p"·data-group-id="1913858248-20">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·c[·...·truncated·by·diffoscope;·len:·197,·SHA:·078fa81d6e83550dbb1393575e54bb548a8f9e48a5b2115fc9c7426ca89865de·...·]-21">)</span><span·class="p">,</span><span·class="w"> |
| 243 | ···</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">socket</span><span·class="p">:</span><span·class="nf">send</span><span·class="p"·data-group-id=" | 243 | ···</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">socket</span><span·class="p">:</span><span·class="nf">send</span><span·class="p"·data-group-id="1913858248-22">(</span><span·class="n">Sock</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Msg</span><span·class="p"·data-group-id="1913858248-22">)</span><span·class="p">,</span><span·class="w"> |
| 244 | ···</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">socket</span><span·class="p">:</span><span·class="nf">close</span><span·class="p"·data-group-id=" | 244 | ···</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">socket</span><span·class="p">:</span><span·class="nf">close</span><span·class="p"·data-group-id="1913858248-23">(</span><span·class="n">Sock</span><span·class="p"·data-group-id="1913858248-23">)</span><span·class="p">,</span><span·class="w"> |
| 245 | ···</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">socket</span><span·class="p">:</span><span·class="nf">close</span><span·class="p"·data-group-id=" | 245 | ···</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">socket</span><span·class="p">:</span><span·class="nf">close</span><span·class="p"·data-group-id="1913858248-24">(</span><span·class="n">LSock</span><span·class="p"·data-group-id="1913858248-24">)</span><span·class="p">.</span></code></pre> |
| 246 | ····</section> | 246 | ····</section> |
| 247 | </div> | 247 | </div> |
| 248 | ··<section·id="summary"·class="details-list"> | 248 | ··<section·id="summary"·class="details-list"> |
| 249 | ····<h1·class="section-heading"> | 249 | ····<h1·class="section-heading"> |
| 250 | ······<a·class="hover-link"·href="#summary"> | 250 | ······<a·class="hover-link"·href="#summary"> |
| Offset 4699, 15 lines modified | Offset 4699, 15 lines modified | ||
| 4699 | with·its·name·and·address.</p></li><li><p><strong><code·class="inline">nread</code></strong>·-·Get·the·number·of·bytes·immediately·available·for·reading | 4699 | with·its·name·and·address.</p></li><li><p><strong><code·class="inline">nread</code></strong>·-·Get·the·number·of·bytes·immediately·available·for·reading |
| 4700 | <em>(since·OTP·26.1)</em>.</p><p>Result;·the·number·of·bytes,·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:integer/0"><code·class="inline">integer/0</code></a>.</p></li><li><p><strong><code·class="inline">nwrite</code></strong>·-·Get·the·number·of·bytes·in·the·send·queue | 4700 | <em>(since·OTP·26.1)</em>.</p><p>Result;·the·number·of·bytes,·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:integer/0"><code·class="inline">integer/0</code></a>.</p></li><li><p><strong><code·class="inline">nwrite</code></strong>·-·Get·the·number·of·bytes·in·the·send·queue |
| 4701 | <em>(since·OTP·26.1)</em>.</p><p>Result;·the·number·of·bytes,·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:integer/0"><code·class="inline">integer/0</code></a>.</p></li><li><p><strong><code·class="inline">nspace</code></strong>·-·Get·the·free·space·in·the·send·queue | 4701 | <em>(since·OTP·26.1)</em>.</p><p>Result;·the·number·of·bytes,·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:integer/0"><code·class="inline">integer/0</code></a>.</p></li><li><p><strong><code·class="inline">nspace</code></strong>·-·Get·the·free·space·in·the·send·queue |
| 4702 | <em>(since·OTP·26.1)</em>.</p><p>Result;·the·number·of·bytes,·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:integer/0"><code·class="inline">integer/0</code></a>.</p></li><li><p><strong><code·class="inline">atmark</code></strong>·-·Test·if·there·is·OOB·(out-of-bound)·data·waiting·to·be·read | 4702 | <em>(since·OTP·26.1)</em>.</p><p>Result;·the·number·of·bytes,·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:integer/0"><code·class="inline">integer/0</code></a>.</p></li><li><p><strong><code·class="inline">atmark</code></strong>·-·Test·if·there·is·OOB·(out-of-bound)·data·waiting·to·be·read |
| 4703 | <em>(since·OTP·26.1)</em>.</p><p>Result;·a·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:boolean/0"><code·class="inline">boolean/0</code></a>.</p></li><li><p><strong><code·class="inline">tcp_info</code></strong>·-·Get·miscellaneous·TCP·related·information·for·a | 4703 | <em>(since·OTP·26.1)</em>.</p><p>Result;·a·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:boolean/0"><code·class="inline">boolean/0</code></a>.</p></li><li><p><strong><code·class="inline">tcp_info</code></strong>·-·Get·miscellaneous·TCP·related·information·for·a |
| 4704 | <em>connected</em>·socket·<em>(since·OTP·26.1)</em>.</p><p>Result;·a·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:map/0"><code·class="inline">map/0</code></a>·with·information·items·as·key-value·pairs.</p></li></ul><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>Not·all·requests·are·supported·by·all·platforms. | 4704 | <em>connected</em>·socket·<em>(since·OTP·26.1)</em>.</p><p>Result;·a·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:map/0"><code·class="inline">map/0</code></a>·with·information·items·as·key-value·pairs.</p></li></ul><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>Not·all·requests·are·supported·by·all·platforms. |
| 4705 | To·see·if·a·ioctl·request·is·supported·on·the·current·platform:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">······</span><span·class="n">Request</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">nread</span><span·class="p">,</span><span·class="w"> | 4705 | To·see·if·a·ioctl·request·is·supported·on·the·current·platform:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">······</span><span·class="n">Request</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">nread</span><span·class="p">,</span><span·class="w"> |
| 4706 | ······</span><span·class="ss">true</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">socket</span><span·class="p">:</span><span·class="nf">is_supported</span><span·class="p"·data-group-id=" | 4706 | ······</span><span·class="ss">true</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">socket</span><span·class="p">:</span><span·class="nf">is_supported</span><span·class="p"·data-group-id="7863585446-1">(</span><span·class="ss">ioctl_requests</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Request</span><span·class="p"·data-group-id="7863585446-1">)</span><span·class="p">,</span><span·class="w"> |
| 4707 | ······</span><span·class="p">:</span></code></pre></section> | 4707 | ······</span><span·class="p">:</span></code></pre></section> |
| 4708 | ··</section> | 4708 | ··</section> |
| 4709 | </section> | 4709 | </section> |
| 4710 | <section·class="detail"·id="ioctl/3"> | 4710 | <section·class="detail"·id="ioctl/3"> |
| 4711 | ··<div·class="detail-header"> | 4711 | ··<div·class="detail-header"> |
| 4712 | ····<a·href="#ioctl/3"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 4712 | ····<a·href="#ioctl/3"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| Offset 4857, 15 lines modified | Offset 4857, 15 lines modified | ||
| 4857 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·is_supported(Key1·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>())·->·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:boolean/0">boolean</a>().</pre> | 4857 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·is_supported(Key1·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>())·->·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:boolean/0">boolean</a>().</pre> |
| 4858 | ······</div> | 4858 | ······</div> |
| 4859 | <p>Check·if·a·socket·feature·is·supported.</p><p>Returns·<code·class="inline">true</code>·if·<a·href="#supports/0"><code·class="inline">supports/0</code></a>·has·a·<code·class="inline">{Key1,·true}</code>·tuple | 4859 | <p>Check·if·a·socket·feature·is·supported.</p><p>Returns·<code·class="inline">true</code>·if·<a·href="#supports/0"><code·class="inline">supports/0</code></a>·has·a·<code·class="inline">{Key1,·true}</code>·tuple |
| 4860 | or·a·<code·class="inline">{Key1,·list()}</code>·tuple·in·its·returned·list, | 4860 | or·a·<code·class="inline">{Key1,·list()}</code>·tuple·in·its·returned·list, |
| 4861 | otherwise·<code·class="inline">false</code>·(also·for·unknown·keys).</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="ss">true</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">socket</span><span·class="p">:</span><span·class="nf">is_supported</span><span·class="p"·data-group-id="2 | 4861 | otherwise·<code·class="inline">false</code>·(also·for·unknown·keys).</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="ss">true</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">socket</span><span·class="p">:</span><span·class="nf">is_supported</span><span·class="p"·data-group-id="2777212367-1">(</span><span·class="ss">local</span><span·class="p"·data-group-id="2777212367-1">)</span><span·class="p">,</span></code></pre> |
| 4862 | ··</section> | 4862 | ··</section> |
| 4863 | </section> | 4863 | </section> |
| 4864 | <section·class="detail"·id="is_supported/2"> | 4864 | <section·class="detail"·id="is_supported/2"> |
| 4865 | ··<div·class="detail-header"> | 4865 | ··<div·class="detail-header"> |
| 4866 | ····<a·href="#is_supported/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 4866 | ····<a·href="#is_supported/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 4867 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 4867 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 4886, 15 lines modified | Offset 4886, 15 lines modified | ||
| 4886 | ······<div·class="specs"> | 4886 | ······<div·class="specs"> |
| 4887 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·is_supported(Key1·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>(),·Key2·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>())·->·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:boolean/0">boolean</a>().</pre> | 4887 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·is_supported(Key1·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>(),·Key2·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>())·->·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:boolean/0">boolean</a>().</pre> |
| 4888 | ······</div> | 4888 | ······</div> |
| 4889 | <p>Check·if·a·socket·feature·is·supported.</p><p>Returns·<code·class="inline">true</code>·if·<a·href="#supports/1"><code·class="inline">supports(Key1)</code></a>·has·a·<code·class="inline">{Key2,·true}</code>·tuple | 4889 | <p>Check·if·a·socket·feature·is·supported.</p><p>Returns·<code·class="inline">true</code>·if·<a·href="#supports/1"><code·class="inline">supports(Key1)</code></a>·has·a·<code·class="inline">{Key2,·true}</code>·tuple |
| 4890 | in·its·returned·list,·otherwise·<code·class="inline">false</code>·(also·for·unknown·keys).</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="ss">true</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">socket</span><span·class="p">:</span><span·class="nf">is_supported</span><span·class="p"·data-group-id=" | 4890 | in·its·returned·list,·otherwise·<code·class="inline">false</code>·(also·for·unknown·keys).</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="ss">true</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">socket</span><span·class="p">:</span><span·class="nf">is_supported</span><span·class="p"·data-group-id="9508724933-1">(</span><span·class="ss">msg_flags</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">errqueue</span><span·class="p"·data-group-id="9508724933-1">)</span><span·class="p">,</span></code></pre> |
| 4891 | ··</section> | 4891 | ··</section> |
| 4892 | </section> | 4892 | </section> |
| 4893 | <section·class="detail"·id="listen/1"> | 4893 | <section·class="detail"·id="listen/1"> |
| 4894 | ··<div·class="detail-header"> | 4894 | ··<div·class="detail-header"> |
| 4895 | ····<a·href="#listen/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 4895 | ····<a·href="#listen/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 4896 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 4896 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 4977, 15 lines modified | Offset 4977, 15 lines modified | ||
| 4977 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·monitor(Socket·::·<a·href="#t:socket/0">socket</a>())·->·MonitorRef·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:reference/0">reference</a>().</pre> | 4977 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·monitor(Socket·::·<a·href="#t:socket/0">socket</a>())·->·MonitorRef·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:reference/0">reference</a>().</pre> |
| 4978 | ······</div> | 4978 | ······</div> |
| 4979 | <p>Start·a·socket·monitor.</p><p>If·the·<code·class="inline">Socket</code>·doesn't·exist·or·when·later·the·monitor·is·triggered, | 4979 | <p>Start·a·socket·monitor.</p><p>If·the·<code·class="inline">Socket</code>·doesn't·exist·or·when·later·the·monitor·is·triggered, |
| 4980 | a·<code·class="inline">'DOWN'</code>·message·is·sent·to·the·process·that·called·<a·href="#monitor/1"><code·class="inline">monitor/1</code></a> | 4980 | a·<code·class="inline">'DOWN'</code>·message·is·sent·to·the·process·that·called·<a·href="#monitor/1"><code·class="inline">monitor/1</code></a> |
| 4981 | with·the·following·pattern:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">» ····</span><span·class="p"·data-group-id=" | 4981 | with·the·following·pattern:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">» ····</span><span·class="p"·data-group-id="2893759841-1">{</span><span·class="ss">'DOWN'</span><span·class="p">,</span><span·class="w">·</span><span·class="n">MonitorRef</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">socket</span><span·class="p">,</span><span·class="[·...·truncated·by·diffoscope;·len:·156,·SHA:·e05366096b42cd6c80dffe4058c501b21ed95f131d8f8fcb509342f0482c4bcf·...·]-1">}</span></code></pre><p><code·class="inline">Info</code>·is·the·termination·reason·of·the·socket·or·<code·class="inline">nosock</code>·if |
| 4982 | <code·class="inline">Socket</code>·did·not·exist·when·the·monitor·was·started.</p><p>Making·several·calls·to·<a·href="#monitor/1"><code·class="inline">socket:monitor/1</code></a>·for·the·same·<code·class="inline">Socket</code>·is·not·an | 4982 | <code·class="inline">Socket</code>·did·not·exist·when·the·monitor·was·started.</p><p>Making·several·calls·to·<a·href="#monitor/1"><code·class="inline">socket:monitor/1</code></a>·for·the·same·<code·class="inline">Socket</code>·is·not·an |
| 4983 | error;·each·call·creates·an·independent·monitor·instance.</p> | 4983 | error;·each·call·creates·an·independent·monitor·instance.</p> |
| 4984 | ··</section> | 4984 | ··</section> |
| 4985 | </section> | 4985 | </section> |
| 4986 | <section·class="detail"·id="number_of/0"> | 4986 | <section·class="detail"·id="number_of/0"> |
| 4987 | ··<div·class="detail-header"> | 4987 | ··<div·class="detail-header"> |
| Offset 7111, 15 lines modified | Offset 7111, 15 lines modified | ||
| 7111 | ······<p·class="built-using"> | 7111 | ······<p·class="built-using"> |
| 7112 | ········Built·using | 7112 | ········Built·using |
| 7113 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 7113 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 7114 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 7114 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 7115 | ······</p> | 7115 | ······</p> |
| 7116 | <p>Copyright·©·1996-202 | 7116 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 7117 | ····</footer> | 7117 | ····</footer> |
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| 182 | effects·<em>that</em>·specific·socket).</p><h2·id="example"·class="section-heading"> | 182 | effects·<em>that</em>·specific·socket).</p><h2·id="example"·class="section-heading"> |
| 183 | ··<a·href="#example"·class="hover-link"> | 183 | ··<a·href="#example"·class="hover-link"> |
| 184 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 184 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 185 | ··</a> | 185 | ··</a> |
| 186 | ··<span·class="text">Example</span> | 186 | ··<span·class="text">Example</span> |
| 187 | </h2> | 187 | </h2> |
| 188 | <p>This·example·is·intended·to·show·how·to·create·a·simple·(echo)·server | 188 | <p>This·example·is·intended·to·show·how·to·create·a·simple·(echo)·server |
| 189 | (and·client).</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 189 | (and·client).</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="9655326388-1">(</span><span·class="ss">example</span><span·class="p"·data-group-id="9655326388-1">)</span><span·class="p">.</span><span·class="w"> |
| 190 | </span><span·class="w"> | 190 | </span><span·class="w"> |
| 191 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 191 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="9655326388-2">(</span><span·class="p"·data-group-id="9655326388-3">[</span><span·class="ss">client</span><span·class="p">/</span><span·class="mi">2</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">client</span><span·class="p">/</span>[·...·truncated·by·diffoscope;·len:·119,·SHA:·ac0ea8807076b2c34111bfb5f50717da7d5f88e4431e72a876fdb9a8c0b2a8bb·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 192 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 192 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="9655326388-4">(</span><span·class="p"·data-group-id="9655326388-5">[</span><span·class="ss">server</span><span·class="p">/</span><span·class="mi">0</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">server</span><span·class="p">/</span>[·...·truncated·by·diffoscope;·len:·246,·SHA:·adb75b75b8aefaaacc392b754d707a0d03f1450a4e42306b8cb707f2f824840f·...·]-4">)</span><span·class="p">.</span><span·class="w"> |
| 193 | </span><span·class="c1">%%·======================================================================</span><span·class="w"> | 193 | </span><span·class="c1">%%·======================================================================</span><span·class="w"> |
| 194 | </span><span·class="c1">%%·===·Client·===</span><span·class="w"> | 194 | </span><span·class="c1">%%·===·Client·===</span><span·class="w"> |
| 195 | </span><span·class="nf">client</span><span·class="p"·data-group-id=" | 195 | </span><span·class="nf">client</span><span·class="p"·data-group-id="9655326388-6">(</span><span·class="p"·data-group-id="9655326388-7">#{</span><span·class="ss">family</span><span·class="w">·</span><span·class="p">:=</span><span·class="w">·</span><span·class="n">Family</span><span·class="p"·data-group-id="9655326388-7">}</[·...·truncated·by·diffoscope;·len:·229,·SHA:·016208fb8b190a19a211492acc362b96b3b22468e8c7d49e25d8ce5bff06d4be·...·]-6">)</span><span·class="w"> |
| 196 | ··</span><span·class="k">when</span><span·class="w">·</span><span·class="nf">is_list</span><span·class="p"·data-group-id=" | 196 | ··</span><span·class="k">when</span><span·class="w">·</span><span·class="nf">is_list</span><span·class="p"·data-group-id="9655326388-8">(</span><span·class="n">Msg</span><span·class="p"·data-group-id="9655326388-8">)</span><span·class="w">·</span><span·class="ow">orelse</span><span·class="w">·</span><span·class="nf">is_binary</span><span·class="p"·data-group-id="9655326388-9"[·...·truncated·by·diffoscope;·len:·76,·SHA:·1047ef4c116ed3afd77611badadd78d183ca544fa85e46464b7c48f8cc63b3c2·...·]-9">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 197 | ····</span><span·class="p"·data-group-id=" | 197 | ····</span><span·class="p"·data-group-id="9655326388-10">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Sock</span><span·class="p"·data-group-id="9655326388-10">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·[·...·truncated·by·diffoscope;·len:·357,·SHA:·93f0dc58071aa888819908c9ef64b3e6ef088e64587dcc067f46ff33bd03a27f·...·]-11">)</span><span·class="p">,</span><span·class="w"> |
| 198 | ····</span><span·class="ss">ok</span><span·class="w">·········</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">maybe_bind</span><span·class="p"·data-group-id=" | 198 | ····</span><span·class="ss">ok</span><span·class="w">·········</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">maybe_bind</span><span·class="p"·data-group-id="9655326388-12">(</span><span·class="n">Sock</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Family</span><span·class="p"·data-group-id="9655326388-12">)</span><span·class="p">,</span><span·class="w"> |
| 199 | ····</span><span·class="ss">ok</span><span·class="w">·········</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">socket</span><span·class="p">:</span><span·class="nf">connect</span><span·class="p"·data-group-id=" | 199 | ····</span><span·class="ss">ok</span><span·class="w">·········</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">socket</span><span·class="p">:</span><span·class="nf">connect</span><span·class="p"·data-group-id="9655326388-13">(</span><span·class="n">Sock</span><span·class="p">,</span><span·class="w">·</span><span·class="n">ServerSockAddr</span><span·class="p"·data-group-id="9655326388-13">)</span><span·class="p">,</span><span·class="w"> |
| 200 | ····</span><span·class="nf">client_exchange</span><span·class="p"·data-group-id=" | 200 | ····</span><span·class="nf">client_exchange</span><span·class="p"·data-group-id="9655326388-14">(</span><span·class="n">Sock</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Msg</span><span·class="p"·data-group-id="9655326388-14">)</span><span·class="p">;</span><span·class="w"> |
| 201 | </span><span·class="nf">client</span><span·class="p"·data-group-id=" | 201 | </span><span·class="nf">client</span><span·class="p"·data-group-id="9655326388-15">(</span><span·class="n">ServerPort</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Msg</span><span·class="p"·data-group-id="9655326388-15">)</span><span·class="w"> |
| 202 | ··</span><span·class="k">when</span><span·class="w">·</span><span·class="nf">is_integer</span><span·class="p"·data-group-id=" | 202 | ··</span><span·class="k">when</span><span·class="w">·</span><span·class="nf">is_integer</span><span·class="p"·data-group-id="9655326388-16">(</span><span·class="n">ServerPort</span><span·class="p"·data-group-id="9655326388-16">)</span><span·class="w">·</span><span·class="nf">andalso</span><span·class="w">·</span><span·class="p"·data-group-id="9655326388-17">(</span><span·class="[·...·truncated·by·diffoscope;·len:·161,·SHA:·f1d6a61eaa564f480c3be153e384fcfc306ecd572d1ac0e12b82f79efab0716a·...·]-17">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 203 | ····</span><span·class="n">Family</span><span·class="w">···</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">inet</span><span·class="p">,</span><span·class="w">·</span><span·class="c1">%·Default</span><span·class="w"> | 203 | ····</span><span·class="n">Family</span><span·class="w">···</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">inet</span><span·class="p">,</span><span·class="w">·</span><span·class="c1">%·Default</span><span·class="w"> |
| 204 | ····</span><span·class="n">Addr</span><span·class="w">·····</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">get_local_addr</span><span·class="p"·data-group-id=" | 204 | ····</span><span·class="n">Addr</span><span·class="w">·····</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">get_local_addr</span><span·class="p"·data-group-id="9655326388-18">(</span><span·class="n">Family</span><span·class="p"·data-group-id="9655326388-18">)</span><span·class="p">,</span><span·class="w">·</span><span·class="c1">%·Pick·an·address</span><span·class="w"> |
| 205 | ····</span><span·class="n">SockAddr</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 205 | ····</span><span·class="n">SockAddr</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="9655326388-19">#{</span><span·class="ss">family</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="n">Family</span><span·class="p">,</span><span·class="w"> |
| 206 | » » ·</span><span·class="ss">addr</span><span·class="w">···</span><span·class="p">=></span><span·class="w">·</span><span·class="n">Addr</span><span·class="p">,</span><span·class="w"> | 206 | » » ·</span><span·class="ss">addr</span><span·class="w">···</span><span·class="p">=></span><span·class="w">·</span><span·class="n">Addr</span><span·class="p">,</span><span·class="w"> |
| 207 | » » ·</span><span·class="ss">port</span><span·class="w">···</span><span·class="p">=></span><span·class="w">·</span><span·class="n">ServerPort</span><span·class="p"·data-group-id=" | 207 | » » ·</span><span·class="ss">port</span><span·class="w">···</span><span·class="p">=></span><span·class="w">·</span><span·class="n">ServerPort</span><span·class="p"·data-group-id="9655326388-19">}</span><span·class="p">,</span><span·class="w"> |
| 208 | ····</span><span·class="nf">client</span><span·class="p"·data-group-id=" | 208 | ····</span><span·class="nf">client</span><span·class="p"·data-group-id="9655326388-20">(</span><span·class="n">SockAddr</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Msg</span><span·class="p"·data-group-id="9655326388-20">)</span><span·class="p">.</span><span·class="w"> |
| 209 | </span><span·class="nf">client</span><span·class="p"·data-group-id=" | 209 | </span><span·class="nf">client</span><span·class="p"·data-group-id="9655326388-21">(</span><span·class="n">ServerPort</span><span·class="p">,</span><span·class="w">·</span><span·class="n">ServerAddr</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Msg</span><span·class="p"·data-group-id="9655326388-21">)</span><span·class="w"> |
| 210 | ··</span><span·class="k">when</span><span·class="w">·</span><span·class="nf">is_integer</span><span·class="p"·data-group-id=" | 210 | ··</span><span·class="k">when</span><span·class="w">·</span><span·class="nf">is_integer</span><span·class="p"·data-group-id="9655326388-22">(</span><span·class="n">ServerPort</span><span·class="p"·data-group-id="9655326388-22">)</span><span·class="w">·</span><span·class="nf">andalso</span><span·class="w">·</span><span·class="p"·data-group-id="9655326388-23">(</span><span·class="[·...·truncated·by·diffoscope;·len:·161,·SHA:·f1d6a61eaa564f480c3be153e384fcfc306ecd572d1ac0e12b82f79efab0716a·...·]-23">)</span><span·class="w">·</span><span·class="ow">andalso</span><span·class="w"> |
| 211 | ·······</span><span·class="nf">is_tuple</span><span·class="p"·data-group-id=" | 211 | ·······</span><span·class="nf">is_tuple</span><span·class="p"·data-group-id="9655326388-24">(</span><span·class="n">ServerAddr</span><span·class="p"·data-group-id="9655326388-24">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 212 | ····</span><span·class="n">Family</span><span·class="w">···</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">which_family</span><span·class="p"·data-group-id=" | 212 | ····</span><span·class="n">Family</span><span·class="w">···</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">which_family</span><span·class="p"·data-group-id="9655326388-25">(</span><span·class="n">ServerAddr</span><span·class="p"·data-group-id="9655326388-25">)</span><span·class="p">,</span><span·class="w"> |
| 213 | ····</span><span·class="n">SockAddr</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 213 | ····</span><span·class="n">SockAddr</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="9655326388-26">#{</span><span·class="ss">family</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="n">Family</span><span·class="p">,</span><span·class="w"> |
| 214 | » » ·</span><span·class="ss">addr</span><span·class="w">···</span><span·class="p">=></span><span·class="w">·</span><span·class="n">ServerAddr</span><span·class="p">,</span><span·class="w"> | 214 | » » ·</span><span·class="ss">addr</span><span·class="w">···</span><span·class="p">=></span><span·class="w">·</span><span·class="n">ServerAddr</span><span·class="p">,</span><span·class="w"> |
| 215 | » » ·</span><span·class="ss">port</span><span·class="w">···</span><span·class="p">=></span><span·class="w">·</span><span·class="n">ServerPort</span><span·class="p"·data-group-id=" | 215 | » » ·</span><span·class="ss">port</span><span·class="w">···</span><span·class="p">=></span><span·class="w">·</span><span·class="n">ServerPort</span><span·class="p"·data-group-id="9655326388-26">}</span><span·class="p">,</span><span·class="w"> |
| 216 | ····</span><span·class="nf">client</span><span·class="p"·data-group-id=" | 216 | ····</span><span·class="nf">client</span><span·class="p"·data-group-id="9655326388-27">(</span><span·class="n">SockAddr</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Msg</span><span·class="p"·data-group-id="9655326388-27">)</span><span·class="p">.</span><span·class="w"> |
| 217 | </span><span·class="c1">%%·Send·the·message·to·the·(echo)·server·and·wait·for·the·echo·to·come·back.</span><span·class="w"> | 217 | </span><span·class="c1">%%·Send·the·message·to·the·(echo)·server·and·wait·for·the·echo·to·come·back.</span><span·class="w"> |
| 218 | </span><span·class="nf">client_exchange</span><span·class="p"·data-group-id=" | 218 | </span><span·class="nf">client_exchange</span><span·class="p"·data-group-id="9655326388-28">(</span><span·class="n">Sock</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Msg</span><span·class="p"·data-group-id="9655326388-28">)</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><sp[·...·truncated·by·diffoscope;·len:·149,·SHA:·c942765746420fb27ac5e6c095c63682b94107d97bfe964cfe08cf60736b165b·...·]-29">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 219 | ····</span><span·class="nf">client_exchange</span><span·class="p"·data-group-id=" | 219 | ····</span><span·class="nf">client_exchange</span><span·class="p"·data-group-id="9655326388-30">(</span><span·class="n">Sock</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">list_to_binary</span><span·class="p"·data-group-id="9655326388-31">(</span><span·class="n">Msg</span><span·class="p"·data-group-id="965532638[·...·truncated·by·diffoscope;·len:·55,·SHA:·ce48735eb123e74060ff8c29b7ee06b77df8a8ebd4644e0398430c176ec4d342·...·]-30">)</span><span·class="p">;</span><span·class="w"> |
| 220 | </span><span·class="nf">client_exchange</span><span·class="p"·data-group-id=" | 220 | </span><span·class="nf">client_exchange</span><span·class="p"·data-group-id="9655326388-32">(</span><span·class="n">Sock</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Msg</span><span·class="p"·data-group-id="9655326388-32">)</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><sp[·...·truncated·by·diffoscope;·len:·151,·SHA:·de7442a612cf4820c752d17d43c4a163aa1587237d8df765156adaa2b1727f7e·...·]-33">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 221 | ····</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">socket</span><span·class="p">:</span><span·class="nf">send</span><span·class="p"·data-group-id=" | 221 | ····</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">socket</span><span·class="p">:</span><span·class="nf">send</span><span·class="p"·data-group-id="9655326388-34">(</span><span·class="n">Sock</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Msg</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">infinity</span><span·class="p"·data-group-id="9655326388-34">)</span><span·class="p">,</span><span·class="w"> |
| 222 | ····</span><span·class="p"·data-group-id=" | 222 | ····</span><span·class="p"·data-group-id="9655326388-35">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Msg</span><span·class="p"·data-group-id="9655326388-35">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·c[·...·truncated·by·diffoscope;·len:·492,·SHA:·0d45ce895451e71de2b79f603ea936d5f4ac86b0a47a37da53ce0324b5db8e83·...·]-36">)</span><span·class="p">,</span><span·class="w"> |
| 223 | ····</span><span·class="ss">ok</span><span·class="p">.</span><span·class="w"> | 223 | ····</span><span·class="ss">ok</span><span·class="p">.</span><span·class="w"> |
| 224 | </span><span·class="c1">%%·======================================================================</span><span·class="w"> | 224 | </span><span·class="c1">%%·======================================================================</span><span·class="w"> |
| 225 | </span><span·class="c1">%%·===·Server·===</span><span·class="w"> | 225 | </span><span·class="c1">%%·===·Server·===</span><span·class="w"> |
| 226 | </span><span·class="nf">server</span><span·class="p"·data-group-id=" | 226 | </span><span·class="nf">server</span><span·class="p"·data-group-id="9655326388-38">(</span><span·class="p"·data-group-id="9655326388-38">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 227 | ····</span><span·class="c1">%%·Make·system·choose·port·(and·address)</span><span·class="w"> | 227 | ····</span><span·class="c1">%%·Make·system·choose·port·(and·address)</span><span·class="w"> |
| 228 | ····</span><span·class="nf">server</span><span·class="p"·data-group-id=" | 228 | ····</span><span·class="nf">server</span><span·class="p"·data-group-id="9655326388-39">(</span><span·class="mi">0</span><span·class="p"·data-group-id="9655326388-39">)</span><span·class="p">.</span><span·class="w"> |
| 229 | </span><span·class="c1">%%·This·function·return·the·port·and·address·that·it·actually·uses,</span><span·class="w"> | 229 | </span><span·class="c1">%%·This·function·return·the·port·and·address·that·it·actually·uses,</span><span·class="w"> |
| 230 | </span><span·class="c1">%%·in·case·server/0·or·server/1·(with·a·port·number)·was·used·to·start·it.</span><span·class="w"> | 230 | </span><span·class="c1">%%·in·case·server/0·or·server/1·(with·a·port·number)·was·used·to·start·it.</span><span·class="w"> |
| 231 | </span><span·class="nf">server</span><span·class="p"·data-group-id=" | 231 | </span><span·class="nf">server</span><span·class="p"·data-group-id="9655326388-40">(</span><span·class="p"·data-group-id="9655326388-41">#{</span><span·class="ss">family</span><span·class="w">·</span><span·class="p">:=</span><span·class="w">·</span><span·class="n">Family</span><span·class="p">,</span><span·class="w">·</spa[·...·truncated·by·diffoscope;·len:·501,·SHA:·24ce853d8a94b66913aa75e832516ef0a141f3f13e5f74defc6ffc98dab9888f·...·]-40">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 232 | ····</span><span·class="p"·data-group-id=" | 232 | ····</span><span·class="p"·data-group-id="9655326388-42">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Sock</span><span·class="p"·data-group-id="9655326388-42">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·[·...·truncated·by·diffoscope;·len:·353,·SHA:·19672829095a02a34c1a1399766b72ecc8c28648f21fba7595fa3a264a45c38c·...·]-43">)</span><span·class="p">,</span><span·class="w"> |
| 233 | ····</span><span·class="ss">ok</span><span·class="w">·········</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">socket</span><span·class="p">:</span><span·class="nf">bind</span><span·class="p"·data-group-id=" | 233 | ····</span><span·class="ss">ok</span><span·class="w">·········</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">socket</span><span·class="p">:</span><span·class="nf">bind</span><span·class="p"·data-group-id="9655326388-44">(</span><span·class="n">Sock</span><span·class="p">,</span><span·class="w">·</span><span·class="n">SockAddr</span><span·class="p"·data-group-id="9655326388-44">)</span><span·class="p">,</span><span·class="w"> |
| 234 | ····</span><span·class="ss">ok</span><span·class="w">·········</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">socket</span><span·class="p">:</span><span·class="nf">listen</span><span·class="p"·data-group-id=" | 234 | ····</span><span·class="ss">ok</span><span·class="w">·········</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">socket</span><span·class="p">:</span><span·class="nf">listen</span><span·class="p"·data-group-id="9655326388-45">(</span><span·class="n">Sock</span><span·class="p"·data-group-id="9655326388-45">)</span><span·class="p">,</span><span·class="w"> |
| 235 | ····</span><span·class="p"·data-group-id=" | 235 | ····</span><span·class="p"·data-group-id="9655326388-46">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9655326388-47">#{</span><span·class="ss">port</span><span·class="w">·</span><span·class="p">:=</span><span·class="w">·</span><sp[·...·truncated·by·diffoscope;·len:·412,·SHA:·abca10f9cb05e16daa7650c5737f583ef2025c036b9e1fee5cd251216029babb·...·]-48">)</span><span·class="p">,</span><span·class="w"> |
| 236 | ····</span><span·class="n">Acceptor</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">start_acceptor</span><span·class="p"·data-group-id="2203808821-49">(</span><span·class="n">Sock</span><span·class="p"·data-group-id="2203808821-49">)</span><span·class="p">,</span><span·class="w"> | ||
| 237 | ····</span><span·class=" | 236 | ····</span><span·class="n">Acceptor</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">start_acceptor</span><span·class="p"·data-group-id="9655326388-49">(</span><span·class="n">Sock</span><span·class="p"·data-group-id="9655326388-49">)[·...·truncated·by·diffoscope;·len:·24,·SHA:·fb649ce4501752a181a95639f50a14dc0dcddcf7a62949109a2ee6f0ba38f75c·...·]</span><span·class="w"> |
| 237 | ····</span><span·class="p"·data-group-id="9655326388-50">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9655326388-51">{</span><span·class="n">Port</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Addr</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Acceptor</span><span·class="p"·data-group-id="9655326388-51">}</span><span·class="p"·data-group-id="9655326388-50">}</span><span·class="p">;</span><span·class="w"> | ||
| 238 | </span><span·class="nf">server</span><span·class="p"·data-group-id=" | 238 | </span><span·class="nf">server</span><span·class="p"·data-group-id="9655326388-52">(</span><span·class="n">Port</span><span·class="p"·data-group-id="9655326388-52">)</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><span·class="nf">is_integer</span><span·class="p"·data-group-id="9655326388-5[·...·truncated·by·diffoscope;·len:·79,·SHA:·147b6045f43c7cb753d76aa5aedbe8c6ac9f0059fc683c036acf2d1024f55be5·...·]-53">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 239 | ····</span><span·class="n">Family</span><span·class="w">···</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">inet</span><span·class="p">,</span><span·class="w">·</span><span·class="c1">%·Default</span><span·class="w"> | 239 | ····</span><span·class="n">Family</span><span·class="w">···</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">inet</span><span·class="p">,</span><span·class="w">·</span><span·class="c1">%·Default</span><span·class="w"> |
| 240 | ····</span><span·class="n">Addr</span><span·class="w">·····</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">get_local_addr</span><span·class="p"·data-group-id=" | 240 | ····</span><span·class="n">Addr</span><span·class="w">·····</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">get_local_addr</span><span·class="p"·data-group-id="9655326388-54">(</span><span·class="n">Family</span><span·class="p"·data-group-id="9655326388-54">)</span><span·class="p">,</span><span·class="w">·</span><span·class="c1">%·Pick·an·address</span><span·class="w"> |
| 241 | ····</span><span·class="n">SockAddr</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 241 | ····</span><span·class="n">SockAddr</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="9655326388-55">#{</span><span·class="ss">family</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="n">Family</span><span·class="p">,</span><span·class="w"> |
| 242 | » » ·</span><span·class="ss">addr</span><span·class="w">···</span><span·class="p">=></span><span·class="w">·</span><span·class="n">Addr</span><span·class="p">,</span><span·class="w"> | 242 | » » ·</span><span·class="ss">addr</span><span·class="w">···</span><span·class="p">=></span><span·class="w">·</span><span·class="n">Addr</span><span·class="p">,</span><span·class="w"> |
| 243 | » » ·</span><span·class="ss">port</span><span·class="w">···</span><span·class="p">=></span><span·class="w">·</span><span·class="n">Port</span><span·class="p"·data-group-id=" | 243 | » » ·</span><span·class="ss">port</span><span·class="w">···</span><span·class="p">=></span><span·class="w">·</span><span·class="n">Port</span><span·class="p"·data-group-id="9655326388-55">}</span><span·class="p">,</span><span·class="w"> |
| 244 | ····</span><span·class="nf">server</span><span·class="p"·data-group-id=" | 244 | ····</span><span·class="nf">server</span><span·class="p"·data-group-id="9655326388-56">(</span><span·class="n">SockAddr</span><span·class="p"·data-group-id="9655326388-56">)</span><span·class="p">.</span><span·class="w"> |
| 245 | </span><span·class="nf">server</span><span·class="p"·data-group-id=" | 245 | </span><span·class="nf">server</span><span·class="p"·data-group-id="9655326388-57">(</span><span·class="n">Port</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Addr</span><span·class="p"·data-group-id="9655326388-57">)</span><span·class="w"> |
| 246 | ··</span><span·class="k">when</span><span·class="w">·</span><span·class="nf">is_integer</span><span·class="p"·data-group-id=" | 246 | ··</span><span·class="k">when</span><span·class="w">·</span><span·class="nf">is_integer</span><span·class="p"·data-group-id="9655326388-58">(</span><span·class="n">Port</span><span·class="p"·data-group-id="9655326388-58">)</span><span·class="w">·</span><span·class="nf">andalso</span><span·class="w">·</span><span·class="p"·data-group-id="9655326388-59">(</span><span·class="n">Por[·...·truncated·by·diffoscope;·len:·150,·SHA:·8353b7e0a38f4fc7e34412872327c3dd31d052ffe0ef564a53ea0a6c41efb155·...·]-59">)</span><span·class="w">·</span><span·class="ow">andalso</span><span·class="w"> |
| 247 | ·······</span><span·class="nf">is_tuple</span><span·class="p"·data-group-id=" | 247 | ·······</span><span·class="nf">is_tuple</span><span·class="p"·data-group-id="9655326388-60">(</span><span·class="n">Addr</span><span·class="p"·data-group-id="9655326388-60">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 248 | ····</span><span·class="n">Family</span><span·class="w">···</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">which_family</span><span·class="p"·data-group-id=" | 248 | ····</span><span·class="n">Family</span><span·class="w">···</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">which_family</span><span·class="p"·data-group-id="9655326388-61">(</span><span·class="n">Addr</span><span·class="p"·data-group-id="9655326388-61">)</span><span·class="p">,</span><span·class="w"> |
| 249 | ····</span><span·class="n">SockAddr</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 249 | ····</span><span·class="n">SockAddr</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="9655326388-62">#{</span><span·class="ss">family</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="n">Family</span><span·class="p">,</span><span·class="w"> |
| 250 | » » ·</span><span·class="ss">addr</span><span·class="w">···</span><span·class="p">=></span><span·class="w">·</span><span·class="n">Addr</span><span·class="p">,</span><span·class="w"> | 250 | » » ·</span><span·class="ss">addr</span><span·class="w">···</span><span·class="p">=></span><span·class="w">·</span><span·class="n">Addr</span><span·class="p">,</span><span·class="w"> |
| 251 | » » ·</span><span·class="ss">port</span><span·class="w">···</span><span·class="p">=></span><span·class="w">·</span><span·class="n">Port</span><span·class="p"·data-group-id=" | 251 | » » ·</span><span·class="ss">port</span><span·class="w">···</span><span·class="p">=></span><span·class="w">·</span><span·class="n">Port</span><span·class="p"·data-group-id="9655326388-62">}</span><span·class="p">,</span><span·class="w"> |
| 252 | ····</span><span·class="nf">server</span><span·class="p"·data-group-id=" | 252 | ····</span><span·class="nf">server</span><span·class="p"·data-group-id="9655326388-63">(</span><span·class="n">SockAddr</span><span·class="p"·data-group-id="9655326388-63">)</span><span·class="p">.</span><span·class="w"> |
| 253 | </span><span·class="c1">%%·---·Echo·Server·-·Acceptor·---</span><span·class="w"> | 253 | </span><span·class="c1">%%·---·Echo·Server·-·Acceptor·---</span><span·class="w"> |
| 254 | </span><span·class="nf">start_acceptor</span><span·class="p"·data-group-id=" | 254 | </span><span·class="nf">start_acceptor</span><span·class="p"·data-group-id="9655326388-64">(</span><span·class="n">LSock</span><span·class="p"·data-group-id="9655326388-64">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 255 | ····</span><span·class="n">Self</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">self</span><span·class="p"·data-group-id=" | 255 | ····</span><span·class="n">Self</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">self</span><span·class="p"·data-group-id="9655326388-65">(</span><span·class="p"·data-group-id="9655326388-65">)</span><span·class="p">,</span><span·class="w"> |
| 256 | ····</span><span·class="p"·data-group-id=" | 256 | ····</span><span·class="p"·data-group-id="9655326388-66">{</span><span·class="n">Pid</span><span·class="p">,</span><span·class="w">·</span><span·class="n">MRef</span><span·class="p"·data-group-id="9655326388-66">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·[·...·truncated·by·diffoscope;·len:·635,·SHA:·8904a6ad2119364dcf165eba101d5c4670c972fef23803ca07b52f436ef5bab2·...·]-67">)</span><span·class="p">,</span><span·class="w"> |
| 257 | ····</span><span·class="k">receive</span><span·class="w"> | 257 | ····</span><span·class="k">receive</span><span·class="w"> |
| 258 | » </span><span·class="p"·data-group-id=" | 258 | » </span><span·class="p"·data-group-id="9655326388-70">{</span><span·class="ss">'DOWN'</span><span·class="p">,</span><span·class="w">·</span><span·class="n">MRef</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">process</span><span·class="p">,</span><span·class="w">·[·...·truncated·by·diffoscope;·len:·149,·SHA:·87722ccd8d38309aef2ffe3b6d09f74b2f673b0627460d0fe5bb759dba078423·...·]-70">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 259 | » ····</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">error</span><span·class="p"·data-group-id=" | 259 | » ····</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">error</span><span·class="p"·data-group-id="9655326388-71">(</span><span·class="p"·data-group-id="9655326388-72">{</span><span·class="ss">failed_starting_acceptor</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Info</span><span·class="p"·data-group-id="9655326388-72">}</span><s[·...·truncated·by·diffoscope;·len:·39,·SHA:·de905e8576ddb05ef0fb693a97a73cbeead5133133bda45a5537d416b8d2f222·...·]-71">)</span><span·class="p">;</span><span·class="w"> |
| 260 | » </span><span·class="p"·data-group-id=" | 260 | » </span><span·class="p"·data-group-id="9655326388-73">{</span><span·class="n">Pid</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">started</span><span·class="p"·data-group-id="9655326388-73">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 261 | » ····</span><span·class="c1">%%·Transfer·ownership</span><span·class="w"> | 261 | » ····</span><span·class="c1">%%·Transfer·ownership</span><span·class="w"> |
| 262 | » ····</span><span·class="nc">socket</span><span·class="p">:</span><span·class="nf">setopt</span><span·class="p"·data-group-id=" | 262 | » ····</span><span·class="nc">socket</span><span·class="p">:</span><span·class="nf">setopt</span><span·class="p"·data-group-id="9655326388-74">(</span><span·class="n">LSock</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">otp</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">owner</span><span·class="p">,</span><span·class="w">·</span><span[·...·truncated·by·diffoscope;·len:·62,·SHA:·e2179003d24cfd5ba012c7e0f1eba9760446a8994778cf40093222b89a5a9744·...·]-74">)</span><span·class="p">,</span><span·class="w"> |
| 263 | » ····</span><span·class="n">Pid</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id=" | 263 | » ····</span><span·class="n">Pid</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id="9655326388-75">{</span><span·class="nf">self</span><span·class="p"·data-group-id="9655326388-76">(</span><span·class="p"·data-group-id="9655326388-76">)</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">continue</span><span·class="p"·d[·...·truncated·by·diffoscope;·len:·24,·SHA:·02c083373062d02e2189b0b9dfe7f292ab95e6a93daccb70f9bc3f88b2d68082·...·]-75">}</span><span·class="p">,</span><span·class="w"> |
| 264 | » ····</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">demonitor</span><span·class="p"·data-group-id=" | 264 | » ····</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">demonitor</span><span·class="p"·data-group-id="9655326388-77">(</span><span·class="n">MRef</span><span·class="p"·data-group-id="9655326388-77">)</span><span·class="p">,</span><span·class="w"> |
| 265 | » ····</span><span·class="n">Pid</span><span·class="w"> | 265 | » ····</span><span·class="n">Pid</span><span·class="w"> |
| 266 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> | 266 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> |
| 267 | ···· | 267 | ···· |
| 268 | </span><span·class="nf">acceptor_init</span><span·class="p"·data-group-id=" | 268 | </span><span·class="nf">acceptor_init</span><span·class="p"·data-group-id="9655326388-78">(</span><span·class="n">Parent</span><span·class="p">,</span><span·class="w">·</span><span·class="n">LSock</span><span·class="p"·data-group-id="9655326388-78">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 269 | ····</span><span·class="n">Parent</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id=" | 269 | ····</span><span·class="n">Parent</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id="9655326388-79">{</span><span·class="nf">self</span><span·class="p"·data-group-id="9655326388-80">(</span><span·class="p"·data-group-id="9655326388-80">)</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">started</span><span·class="p"·da[·...·truncated·by·diffoscope;·len:·23,·SHA:·fcc1000220aad690de9f906bc3017ad7312f71cdd3b1ce8311adb4b67c0e85cb·...·]-79">}</span><span·class="p">,</span><span·class="w"> |
| 270 | ····</span><span·class="k">receive</span><span·class="w"> | 270 | ····</span><span·class="k">receive</span><span·class="w"> |
| 271 | » </span><span·class="p"·data-group-id=" | 271 | » </span><span·class="p"·data-group-id="9655326388-81">{</span><span·class="n">Parent</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">continue</span><span·class="p"·data-group-id="9655326388-81">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 272 | » ····</span><span·class="ss">ok</span><span·class="w"> | 272 | » ····</span><span·class="ss">ok</span><span·class="w"> |
| 273 | ····</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> | 273 | ····</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> |
| 274 | ····</span><span·class="nf">acceptor_loop</span><span·class="p"·data-group-id=" | 274 | ····</span><span·class="nf">acceptor_loop</span><span·class="p"·data-group-id="9655326388-82">(</span><span·class="n">LSock</span><span·class="p"·data-group-id="9655326388-82">)</span><span·class="p">.</span><span·class="w"> |
| 275 | </span><span·class="nf">acceptor_loop</span><span·class="p"·data-group-id=" | 275 | </span><span·class="nf">acceptor_loop</span><span·class="p"·data-group-id="9655326388-83">(</span><span·class="n">LSock</span><span·class="p"·data-group-id="9655326388-83">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 276 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">socket</span><span·class="p">:</span><span·class="nf">accept</span><span·class="p"·data-group-id=" | 276 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">socket</span><span·class="p">:</span><span·class="nf">accept</span><span·class="p"·data-group-id="9655326388-84">(</span><span·class="n">LSock</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">infinity</span><span·class="p"·data-group-id="9655326388-84">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 277 | » </span><span·class="p"·data-group-id=" | 277 | » </span><span·class="p"·data-group-id="9655326388-85">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">ASock</span><span·class="p"·data-group-id="9655326388-85">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 278 | » ····</span><span·class="nf">start_handler</span><span·class="p"·data-group-id=" | 278 | » ····</span><span·class="nf">start_handler</span><span·class="p"·data-group-id="9655326388-86">(</span><span·class="n">ASock</span><span·class="p"·data-group-id="9655326388-86">)</span><span·class="p">,</span><span·class="w"> |
| 279 | » ····</span><span·class="nf">acceptor_loop</span><span·class="p"·data-group-id=" | 279 | » ····</span><span·class="nf">acceptor_loop</span><span·class="p"·data-group-id="9655326388-87">(</span><span·class="n">LSock</span><span·class="p"·data-group-id="9655326388-87">)</span><span·class="p">;</span><span·class="w"> |
| 280 | » </span><span·class="p"·data-group-id=" | 280 | » </span><span·class="p"·data-group-id="9655326388-88">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Reason</span><span·class="p"·data-group-id="9655326388-88">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 281 | » ····</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">error</span><span·class="p"·data-group-id=" | 281 | » ····</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">error</span><span·class="p"·data-group-id="9655326388-89">(</span><span·class="p"·data-group-id="9655326388-90">{</span><span·class="ss">accept_failed</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Reason</span><span·class="p"·data-group-id="9655326388-90">}</span><span·class[·...·truncated·by·diffoscope;·len:·30,·SHA:·f7b1b4739a36870b2f280044477ab17fbdddc2f5beb1b53efd67029880218207·...·]-89">)</span><span·class="w"> |
| 282 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> | 282 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> |
| 283 | </span><span·class="c1">%%·---·Echo·Server·-·Handler·---</span><span·class="w"> | 283 | </span><span·class="c1">%%·---·Echo·Server·-·Handler·---</span><span·class="w"> |
| 284 | </span><span·class="nf">start_handler</span><span·class="p"·data-group-id=" | 284 | </span><span·class="nf">start_handler</span><span·class="p"·data-group-id="9655326388-91">(</span><span·class="n">Sock</span><span·class="p"·data-group-id="9655326388-91">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 285 | ····</span><span·class="n">Self</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">self</span><span·class="p"·data-group-id=" | 285 | ····</span><span·class="n">Self</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">self</span><span·class="p"·data-group-id="9655326388-92">(</span><span·class="p"·data-group-id="9655326388-92">)</span><span·class="p">,</span><span·class="w"> |
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| 142 | </h2> | 142 | </h2> |
| 143 | <p>All·tracing·is·done·within·a·trace·session.·Trace·sessions·can·be | 143 | <p>All·tracing·is·done·within·a·trace·session.·Trace·sessions·can·be |
| 144 | <a·href="#session_create/3">created</a>·and·<a·href="#session_destroy/1">destroyed</a> | 144 | <a·href="#session_create/3">created</a>·and·<a·href="#session_destroy/1">destroyed</a> |
| 145 | dynamically.·Each·session·has·its·own·tracer·that·will·receive·all·trace | 145 | dynamically.·Each·session·has·its·own·tracer·that·will·receive·all·trace |
| 146 | messages.·Several·sessions·can·exist·at·the·same·time·without·interfering·with | 146 | messages.·Several·sessions·can·exist·at·the·same·time·without·interfering·with |
| 147 | each·other.·When·a·trace·session·is·destroyed,·all·its·trace·settings·are | 147 | each·other.·When·a·trace·session·is·destroyed,·all·its·trace·settings·are |
| 148 | automatically·cleaned·up.</p><p><em>Example</em>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%%·Create·a·tracer·process·that·will·receive·the·trace·events</span><span·class="gp·unselectable"> | 148 | automatically·cleaned·up.</p><p><em>Example</em>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%%·Create·a·tracer·process·that·will·receive·the·trace·events</span><span·class="gp·unselectable"> |
| 149 | 1>·</span><span·class="n">Tracer</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">spawn</span><span·class="p"·data-group-id=" | 149 | 1>·</span><span·class="n">Tracer</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">spawn</span><span·class="p"·data-group-id="2890226930-1">(</span><span·class="k">fun</span><span·class="w">·</span><span·class="n">F</span><span·class="p"·data-group-id="2890226930-2">(</span><span·class="p"·data-group-id="2890226930-2">)</span><span·class="w">·</span><span·class="p">-></span><s[·...·truncated·by·diffoscope;·len:·945,·SHA:·99370efff904775ad13164a885f7c3ab0836c92dbea992f003ad8d887817e032·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 150 | </span><span·class="o"><</span><span·class="mf">0.91</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="w"> | 150 | </span><span·class="o"><</span><span·class="mf">0.91</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="w"> |
| 151 | </span><span·class="c1">%%·Create·a·session·using·the·Tracer</span><span·class="gp·unselectable"> | 151 | </span><span·class="c1">%%·Create·a·session·using·the·Tracer</span><span·class="gp·unselectable"> |
| 152 | 2>·</span><span·class="n">Session</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">trace</span><span·class="p">:</span><span·class="nf">session_create</span><span·class="p"·data-group-id=" | 152 | 2>·</span><span·class="n">Session</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">trace</span><span·class="p">:</span><span·class="nf">session_create</span><span·class="p"·data-group-id="2890226930-6">(</span><span·class="ss">my_session</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Tracer</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2890226930-7">[</span><span·class="p"·data-g[·...·truncated·by·diffoscope;·len:·72,·SHA:·efbc13bcbdb1eb1efdb5bf39e2db5d4bb6f354abfbc83ed88c4fc0922a4e6275·...·]-6">)</span><span·class="p">.</span><span·class="w"> |
| 153 | </span><span·class="p"·data-group-id=" | 153 | </span><span·class="p"·data-group-id="2890226930-8">{</span><span·class="p">#</span><span·class="n">Ref</span><span·class="o"><</span><span·class="mf">0.1543805153</span><span·class="p">.</span><span·class="mf">1548353537.92331</span><span·class="o">></span><span·class="p">,</span><span·[·...·truncated·by·diffoscope;·len:·248,·SHA:·d93f2912f72171cf20f2368da182c2317039300e1e105b2855846bc530542ef5·...·]-8">}</span><span·class="w"> |
| 154 | </span><span·class="c1">%%·Setup·call·tracing·on·self()</span><span·class="gp·unselectable"> | 154 | </span><span·class="c1">%%·Setup·call·tracing·on·self()</span><span·class="gp·unselectable"> |
| 155 | 3>·</span><span·class="nc">trace</span><span·class="p">:</span><span·class="nf">process</span><span·class="p"·data-group-id=" | 155 | 3>·</span><span·class="nc">trace</span><span·class="p">:</span><span·class="nf">process</span><span·class="p"·data-group-id="2890226930-10">(</span><span·class="n">Session</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">self</span><span·class="p"·data-group-id="2890226930-11">(</span><span·class="p"·data-group-id="2890226930-11">)</span><span·class="p">,</[·...·truncated·by·diffoscope;·len:·282,·SHA:·595255466765a1fa50e19c3c4389fa095be5f7ae39c737f9c854ccf9ae03bf10·...·]-10">)</span><span·class="p">.</span><span·class="w"> |
| 156 | </span><span·class="mi">1</span><span·class="w"> | 156 | </span><span·class="mi">1</span><span·class="w"> |
| 157 | </span><span·class="c1">%%·Setup·call·tracing·on·lists:seq/2</span><span·class="gp·unselectable"> | 157 | </span><span·class="c1">%%·Setup·call·tracing·on·lists:seq/2</span><span·class="gp·unselectable"> |
| 158 | 4>·</span><span·class="nc">trace</span><span·class="p">:</span><span·class="nf">function</span><span·class="p"·data-group-id=" | 158 | 4>·</span><span·class="nc">trace</span><span·class="p">:</span><span·class="nf">function</span><span·class="p"·data-group-id="2890226930-13">(</span><span·class="n">Session</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2890226930-14">{</span><span·class="ss">lists</span><span·class="p">,</span><span·class="ss">seq</span><span·class="p">,</sp[·...·truncated·by·diffoscope;·len:·435,·SHA:·36032b799aadf959674367938f83bf5f73ba2629ac4eca641487d540fa65ca17·...·]-13">)</span><span·class="p">.</span><span·class="w"> |
| 159 | </span><span·class="mi">1</span><span·class="w"> | 159 | </span><span·class="mi">1</span><span·class="w"> |
| 160 | </span><span·class="c1">%%·Call·the·traced·function</span><span·class="gp·unselectable"> | 160 | </span><span·class="c1">%%·Call·the·traced·function</span><span·class="gp·unselectable"> |
| 161 | 5>·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">seq</span><span·class="p"·data-group-id=" | 161 | 5>·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">seq</span><span·class="p"·data-group-id="2890226930-17">(</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">10</span><span·class="p"·data-group-id="2890226930-17">)</span><span·class="p">.</span><span·class="w"> |
| 162 | </span><span·class="p"·data-group-id=" | 162 | </span><span·class="p"·data-group-id="2890226930-18">{</span><span·class="nb">trace</span><span·class="p">,</span><span·class="o"><</span><span·class="mf">0.89</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="p">,</span><span·class="ss">call</sp[·...·truncated·by·diffoscope;·len:·463,·SHA:·67f7edc0c2a8e618786199898276855badc407ff69b64fa34f33c1b96fb94559·...·]-18">}</span><span·class="w">·</span><span·class="c1">%·The·trace·message</span><span·class="w"> |
| 163 | </span><span·class="p"·data-group-id=" | 163 | </span><span·class="p"·data-group-id="2890226930-21">[</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">2</span><span·class="p">,</span><span·class="mi">3</span><span·class="p">,</span><span·class="mi">4</span><span·class="p">,</span><span·class="mi">5</span><span·class=[·...·truncated·by·diffoscope;·len:·275,·SHA:·1dd781bcc4b5e0f1dcd18d3475a904b850a54739d0beaf2387ac559d266b1251·...·]-21">]</span><span·class="w">·</span><span·class="c1">%·The·return·value</span><span·class="w"> |
| 164 | </span><span·class="c1">%%·Cleanup·the·trace·session</span><span·class="gp·unselectable"> | 164 | </span><span·class="c1">%%·Cleanup·the·trace·session</span><span·class="gp·unselectable"> |
| 165 | 6>·</span><span·class="nc">trace</span><span·class="p">:</span><span·class="nf">session_destroy</span><span·class="p"·data-group-id=" | 165 | 6>·</span><span·class="nc">trace</span><span·class="p">:</span><span·class="nf">session_destroy</span><span·class="p"·data-group-id="2890226930-22">(</span><span·class="n">Session</span><span·class="p"·data-group-id="2890226930-22">)</span><span·class="p">.</span><span·class="w"> |
| 166 | </span><span·class="ss">ok</span></code></pre><h2·id="module-node-local-tracing-only"·class="section-heading"> | 166 | </span><span·class="ss">ok</span></code></pre><h2·id="module-node-local-tracing-only"·class="section-heading"> |
| 167 | ··<a·href="#module-node-local-tracing-only"·class="hover-link"> | 167 | ··<a·href="#module-node-local-tracing-only"·class="hover-link"> |
| 168 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 168 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 169 | ··</a> | 169 | ··</a> |
| 170 | ··<span·class="text">Node·Local·Tracing·Only</span> | 170 | ··<span·class="text">Node·Local·Tracing·Only</span> |
| 171 | </h2> | 171 | </h2> |
| 172 | <p>The·functions·in·this·module·only·operates·on·the·local·node.·That·is,·both·the | 172 | <p>The·functions·in·this·module·only·operates·on·the·local·node.·That·is,·both·the |
| Offset 1418, 17 lines modified | Offset 1418, 17 lines modified | ||
| 1418 | <code·class="inline">undefined</code>·if·the·sender·is·not·known·(which·can·be·the·case·for·remote | 1418 | <code·class="inline">undefined</code>·if·the·sender·is·not·known·(which·can·be·the·case·for·remote |
| 1419 | senders).·<code·class="inline">Msg</code>·is·the·message·term.·The·pid·of·the·receiving·process·can·be | 1419 | senders).·<code·class="inline">Msg</code>·is·the·message·term.·The·pid·of·the·receiving·process·can·be |
| 1420 | accessed·with·the·guard·function·<a·href="../../../../erts-16.0/doc/html/erlang.html#self/0"><code·class="inline">self/0</code></a>.·An·empty·list·is·the·same·as | 1420 | accessed·with·the·guard·function·<a·href="../../../../erts-16.0/doc/html/erlang.html#self/0"><code·class="inline">self/0</code></a>.·An·empty·list·is·the·same·as |
| 1421 | <code·class="inline">true</code>.·For·more·information,·see·section | 1421 | <code·class="inline">true</code>.·For·more·information,·see·section |
| 1422 | <a·href="../../../../erts-16.0/doc/html/match_spec.html">Match·Specifications·in·Erlang</a>·in·the·User's·Guide | 1422 | <a·href="../../../../erts-16.0/doc/html/match_spec.html">Match·Specifications·in·Erlang</a>·in·the·User's·Guide |
| 1423 | for·the·ERTS·application.</p></li><li><p><strong><code·class="inline">true</code></strong>·-·Enable·tracing·for·all·received·messages·(to·<code·class="inline">'receive'</code>·traced | 1423 | for·the·ERTS·application.</p></li><li><p><strong><code·class="inline">true</code></strong>·-·Enable·tracing·for·all·received·messages·(to·<code·class="inline">'receive'</code>·traced |
| 1424 | processes).·Any·match·specification·is·removed.·<em>This·is·the·default</em>.</p></li><li><p><strong><code·class="inline">false</code></strong>·-·Disable·tracing·for·all·received·messages.·Any·match | 1424 | processes).·Any·match·specification·is·removed.·<em>This·is·the·default</em>.</p></li><li><p><strong><code·class="inline">false</code></strong>·-·Disable·tracing·for·all·received·messages.·Any·match |
| 1425 | specification·is·removed.</p></li></ul><p>Argument·<code·class="inline">FlagList</code>·must·be·<code·class="inline">[]</code>·for·receive·tracing.</p><p>The·return·value·is·always·<code·class="inline">1</code>.</p><p><em>Examples:</em></p><p>Only·trace·messages·from·a·specific·process·<code·class="inline">Pid</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="nc">trace</span><span·class="p">:</span><span·class="nf">recv</span><span·class="p"·data-group-id="1196247058-1">(</span><span·class="n">Session</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1196247058-2">[</span><span·class="p"·data-group-id="1196247058-3">{</span><span·class="p"·data-group-id="1196247058-4">[</span><span·class="ss">'_'</span><span·class="p">,</span><span·class="n">Pid</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">'_'</span><span·class="p"·data-group-id="1196247058-4">]</span><span·class="p">,</span><span·class="p"·data-group-id="1196247058-5">[</span><span·class="p"·data-group-id="1196247058-5">]</span><span·class="p">,</span><span·class="p"·data-group-id="1196247058-6">[</span><span·class="p"·data-group-id="1196247058-6">]</span><span·class="p"·data-group-id="1196247058-3">}</span><span·class="p"·data-group-id="1196247058-2">]</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1196247058-7">[</span><span·class="p"·data-group-id="1196247058-7">]</span><span·class="p"·data-group-id="1196247058-1">)</span><span·class="p">.</span><span·class="w"> | ||
| 1426 | </span><span·class="mi">1</span></code></pre><p>Only·trace·messages·matching·<code·class="inline">{reply,·_}</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="nc">trace</span><span·class="p">:</span><span·class="nf">recv</span><span·class="p"·data-group-id="8151798742-1">(</span><span·class="n">Session</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8151798742-2">[</span><span·class="p"·data-group-id="8151798742-3">{</span><span·class="p"·data-group-id="8151798742-4">[</span><span·class="ss">'_'</span><span·class="p">,</span><span·class="ss">'_'</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8151798742-5">{</span><span·class="ss">reply</span><span·class="p">,</span><span·class="ss">'_'</span><span·class="p"·data-group-id="8151798742-5">}</span><span·class="p"·data-group-id="8151798742-4">]</span><span·class="p">,</span><span·class="p"·data-group-id="8151798742-6">[</span><span·class="p"·data-group-id="8151798742-6">]</span><span·class="p">,</span><span·class="p"·data-group-id="8151798742-7">[</span><span·class="p"·data-group-id="8151798742-7">]</span><span·class="p"·data-group-id="8151798742-3">}</span><span·class="p"·data-group-id="8151798742-2">]</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8151798742-8">[</span><span·class="p"·data-group-id="8151798742-8">]</span><span·class="p"·data-group-id="8151798742-1">)</span><span·class="p">.</span><span·class="w"> | ||
| 1427 | 1425 | specification·is·removed.</p></li></ul><p>Argument·<code·class="inline">FlagList</code>·must·be·<code·class="inline">[]</code>·for·receive·tracing.</p><p>The·return·value·is·always·<code·class="inline">1</code>.</p><p><em>Examples:</em></p><p>Only·trace·me[·...·truncated·by·diffoscope;·len:·1310,·SHA:·c8a8c8038ba12d505d8c480d4810192adb904622f629f01846dc43fab1c9d249·...·]-1">)</span><span·class="p">.</span><span·class="w"> | |
| 1426 | </span><span·class="mi">1</span></code></pre><p>Only·trace·messages·matching·<code·class="inline">{reply,·_}</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="nc">trace</span><span·class="p">:</span><span·class="nf">recv</span><span·class="p"·data-group-id="5189021590-1">(</span><span·class="n">Session</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="5189021590-2">[</span><span·class="p"·data-group-id="5189021590-3">{</span><span·class="p"·data-group-id="5189021590-4">[</span><span·class="ss">'_'</span><span·class="p">,</span><span·class="ss">'_'</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="5189021590-5">{</span><span·class="ss">reply</span><span·class="p">,</span><span·class="ss">'_'</span><span·class="p"·data-group-id="5189021590-5">}</span><span·class="p"·data-group-id="5189021590-4">]</span><span·class="p">,</span><span·class="p"·data-group-id="5189021590-6">[</span><span·class="p"·data-group-id="5189021590-6">]</span><span·class="p">,</span><span·class="p"·data-group-id="5189021590-7">[</span><span·class="p"·data-group-id="5189021590-7">]</span><span·class="p"·data-group-id="5189021590-3">}</span><span·class="p"·data-group-id="5189021590-2">]</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="5189021590-8">[</span><span·class="p"·data-group-id="5189021590-8">]</span><span·class="p"·data-group-id="5189021590-1">)</span><span·class="p">.</span><span·class="w"> | ||
| 1427 | </span><span·class="mi">1</span></code></pre><p>Only·trace·messages·from·other·nodes:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="nc">trace</span><span·class="p">:</span><span·class="nf">recv</span><span·class="p"·data-group-id="4192984166-1">(</span><span·class="n">Session</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4192984166-2">[</span><span·class="p"·data-group-id="4192984166-3">{</span><span·class="p"·data-group-id="4192984166-4">[</span><span·class="ss">'$1'</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">'_'</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">'_'</span><span·class="p"·data-group-id="4192984166-4">]</span><span·class="p">,</span><span·class="p"·data-group-id="4192984166-5">[</span><span·class="p"·data-group-id="4192984166-6">{</span><span·class="ss">'=/='</span><span·class="p">,</span><span·class="ss">'$1'</span><span·class="p">,</span><span·class="p"·data-group-id="4192984166-7">{</span><span·class="nb">node</span><span·class="p"·data-group-id="4192984166-7">}</span><span·class="p"·data-group-id="4192984166-6">}</span><span·class="p"·data-group-id="4192984166-5">]</span><span·class="p">,</span><span·class="p"·data-group-id="4192984166-8">[</span><span·class="p"·data-group-id="4192984166-8">]</span><span·class="p"·data-group-id="4192984166-3">}</span><span·class="p"·data-group-id="4192984166-2">]</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4192984166-9">[</span><span·class="p"·data-group-id="4192984166-9">]</span><span·class="p"·data-group-id="4192984166-1">)</span><span·class="p">.</span><span·class="w"> | ||
| 1428 | </span><span·class="mi">1</span></code></pre><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>A·match·specification·for·<code·class="inline">'receive'</code>·trace·can·use·all·guard·and·body | 1428 | </span><span·class="mi">1</span></code></pre><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>A·match·specification·for·<code·class="inline">'receive'</code>·trace·can·use·all·guard·and·body |
| 1429 | functions·except·<code·class="inline">caller</code>,·<code·class="inline">is_seq_trace</code>,·<code·class="inline">get_seq_token</code>,·<code·class="inline">set_seq_token</code>, | 1429 | functions·except·<code·class="inline">caller</code>,·<code·class="inline">is_seq_trace</code>,·<code·class="inline">get_seq_token</code>,·<code·class="inline">set_seq_token</code>, |
| 1430 | <code·class="inline">enable_trace</code>,·<code·class="inline">disable_trace</code>,·<code·class="inline">trace</code>,·<code·class="inline">silent</code>,·and·<code·class="inline">process_dump</code>.</p></section><p>Fails·by·raising·an·error·exception·with·an·error·reason·of:</p><ul><li><p><strong><code·class="inline">badarg</code></strong>·-·If·an·argument·is·invalid.</p></li><li><p><strong><code·class="inline">system_limit</code></strong>·-·If·a·match·specification·passed·as·argument·has·excessive | 1430 | <code·class="inline">enable_trace</code>,·<code·class="inline">disable_trace</code>,·<code·class="inline">trace</code>,·<code·class="inline">silent</code>,·and·<code·class="inline">process_dump</code>.</p></section><p>Fails·by·raising·an·error·exception·with·an·error·reason·of:</p><ul><li><p><strong><code·class="inline">badarg</code></strong>·-·If·an·argument·is·invalid.</p></li><li><p><strong><code·class="inline">system_limit</code></strong>·-·If·a·match·specification·passed·as·argument·has·excessive |
| 1431 | nesting·which·causes·scheduler·stack·exhaustion·for·the·scheduler·that·the | 1431 | nesting·which·causes·scheduler·stack·exhaustion·for·the·scheduler·that·the |
| 1432 | calling·process·is·executing·on. | 1432 | calling·process·is·executing·on. |
| 1433 | <a·href="../../../../erts-16.0/doc/html/erl_cmd.html#sched_thread_stack_size">Scheduler·stack·size</a>·can·be·configured | 1433 | <a·href="../../../../erts-16.0/doc/html/erl_cmd.html#sched_thread_stack_size">Scheduler·stack·size</a>·can·be·configured |
| 1434 | when·starting·the·runtime·system.</p></li></ul> | 1434 | when·starting·the·runtime·system.</p></li></ul> |
| Offset 1469, 18 lines modified | Offset 1469, 18 lines modified | ||
| 1469 | the·list·<code·class="inline">[Receiver,·Msg]</code>.·<code·class="inline">Receiver</code>·is·the·process·or·port·identity·of·the | 1469 | the·list·<code·class="inline">[Receiver,·Msg]</code>.·<code·class="inline">Receiver</code>·is·the·process·or·port·identity·of·the |
| 1470 | receiver·and·<code·class="inline">Msg</code>·is·the·message·term.·The·pid·of·the·sending·process·can·be | 1470 | receiver·and·<code·class="inline">Msg</code>·is·the·message·term.·The·pid·of·the·sending·process·can·be |
| 1471 | accessed·with·the·guard·function·<a·href="../../../../erts-16.0/doc/html/erlang.html#self/0"><code·class="inline">self/0</code></a>.·An·empty·list·is·the·same·as | 1471 | accessed·with·the·guard·function·<a·href="../../../../erts-16.0/doc/html/erlang.html#self/0"><code·class="inline">self/0</code></a>.·An·empty·list·is·the·same·as |
| 1472 | <code·class="inline">true</code>.·For·more·information,·see·section | 1472 | <code·class="inline">true</code>.·For·more·information,·see·section |
| 1473 | <a·href="../../../../erts-16.0/doc/html/match_spec.html">Match·Specifications·in·Erlang</a>·in·the·User's·Guide | 1473 | <a·href="../../../../erts-16.0/doc/html/match_spec.html">Match·Specifications·in·Erlang</a>·in·the·User's·Guide |
| 1474 | for·the·ERTS·application.</p></li><li><p><strong><code·class="inline">true</code></strong>·-·Enable·tracing·for·all·sent·messages·(from·<code·class="inline">send</code>·traced | 1474 | for·the·ERTS·application.</p></li><li><p><strong><code·class="inline">true</code></strong>·-·Enable·tracing·for·all·sent·messages·(from·<code·class="inline">send</code>·traced |
| 1475 | processes).·Any·match·specification·is·removed.</p></li><li><p><strong><code·class="inline">false</code></strong>·-·Disable·tracing·for·all·sent·messages.·Any·match·specification | 1475 | processes).·Any·match·specification·is·removed.</p></li><li><p><strong><code·class="inline">false</code></strong>·-·Disable·tracing·for·all·sent·messages.·Any·match·specification |
| 1476 | is·removed.</p></li></ul><p>Argument·<code·class="inline">FlagList</code>·must·be·<code·class="inline">[]</code>.</p><p>The·return·value·is·always·<code·class="inline">1</code>.</p><p><em>Examples:</em></p><p>Only·trace·messages·to·a·specific·process·<code·class="inline">Pid</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="nc">trace</span><span·class="p">:</span><span·class="nf">send</span><span·class="p"·data-group-id="1967880945-1">(</span><span·class="n">Session</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1967880945-2">[</span><span·class="p"·data-group-id="1967880945-3">{</span><span·class="p"·data-group-id="1967880945-4">[</span><span·class="n">Pid</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">'_'</span><span·class="p"·data-group-id="1967880945-4">]</span><span·class="p">,</span><span·class="p"·data-group-id="1967880945-5">[</span><span·class="p"·data-group-id="1967880945-5">]</span><span·class="p">,</span><span·class="p"·data-group-id="1967880945-6">[</span><span·class="p"·data-group-id="1967880945-6">]</span><span·class="p"·data-group-id="1967880945-3">}</span><span·class="p"·data-group-id="1967880945-2">]</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1967880945-7">[</span><span·class="p"·data-group-id="1967880945-7">]</span><span·class="p"·data-group-id="1967880945-1">)</span><span·class="p">.</span><span·class="w"> | ||
| 1477 | </span><span·class="mi">1</span></code></pre><p>Only·trace·messages·matching·<code·class="inline">{reply,·_}</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="nc">trace</span><span·class="p">:</span><span·class="nf">send</span><span·class="p"·data-group-id="0182863092-1">(</span><span·class="n">Session</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0182863092-2">[</span><span·class="p"·data-group-id="0182863092-3">{</span><span·class="p"·data-group-id="0182863092-4">[</span><span·class="ss">'_'</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0182863092-5">{</span><span·class="ss">reply</span><span·class="p">,</span><span·class="ss">'_'</span><span·class="p"·data-group-id="0182863092-5">}</span><span·class="p"·data-group-id="0182863092-4">]</span><span·class="p">,</span><span·class="p"·data-group-id="0182863092-6">[</span><span·class="p"·data-group-id="0182863092-6">]</span><span·class="p">,</span><span·class="p"·data-group-id="0182863092-7">[</span><span·class="p"·data-group-id="0182863092-7">]</span><span·class="p"·data-group-id="0182863092-3">}</span><span·class="p"·data-group-id="0182863092-2">]</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0182863092-8">[</span><span·class="p"·data-group-id="0182863092-8">]</span><span·class="p"·data-group-id="0182863092-1">)</span><span·class="p">.</span><span·class="w"> | ||
| 1478 | </span><span·class="mi">1</span></code></pre><p>Only·trace·messages·sent·to·the·sender·itself:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="nc">trace</span><span·class="p">:</span><span·class="nf">send</span><span·class="p"·data-group-id="6876258590-1">(</span><span·class="n">Session</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6876258590-2">[</span><span·class="p"·data-group-id="6876258590-3">{</span><span·class="p"·data-group-id="6876258590-4">[</span><span·class="ss">'$1'</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">'_'</span><span·class="p"·data-group-id="6876258590-4">]</span><span·class="p">,</span><span·class="p"·data-group-id="6876258590-5">[</span><span·class="p"·data-group-id="6876258590-6">{</span><span·class="ss">'=:='</span><span·class="p">,</span><span·class="ss">'$1'</span><span·class="p">,</span><span·class="p"·data-group-id="6876258590-7">{</span><span·class="ss">self</span><span·class="p"·data-group-id="6876258590-7">}</span><span·class="p"·data-group-id="6876258590-6">}</span><span·class="p"·data-group-id="6876258590-5">]</span><span·class="p">,</span><span·class="p"·data-group-id="6876258590-8">[</span><span·class="p"·data-group-id="6876258590-8">]</span><span·class="p"·data-group-id="6876258590-3">}</span><span·class="p"·data-group-id="6876258590-2">]</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6876258590-9">[</span><span·class="p"·data-group-id="6876258590-9">]</span><span·class="p"·data-group-id="6876258590-1">)</span><span·class="p">.</span><span·class="w"> | ||
| 1479 | 1476 | is·removed.</p></li></ul><p>Argument·<code·class="inline">FlagList</code>·must·be·<code·class="inline">[]</code>.</p><p>The·return·value·is·always·<code·class="inline">1</code>.</p><p><em>Examples:</em></p><p>Only·trace·messages·to·a·specific·process·<code[·...·truncated·by·diffoscope;·len:·1214,·SHA:·649527ebfac71447af8d0ab06b4e623c7435c348975ae9faf25bd33339d5324a·...·]4-1">)</span><span·class="p">.</span><span·class="w"> | |
| 1477 | </span><span·class="mi">1</span></code></pre><p>Only·trace·messages·matching·<code·class="inline">{reply,·_}</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="nc">trace</span><span·class="p">:</span><span·class="nf">send</span><span·class="p"·data-group-id="9685327600-1">(</span><span·class="n">Session</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9685327600-2">[</span><span·class="p"·data-group-id="9685327600-3">{</span><span·class="p"·data-group-id="9685327600-4">[</span><span·class="ss">'_'</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9685327600-5">{</span><span·class="ss">reply</span><span·class="p">,</span><span·class="ss">'_'</span><span·class="p"·data-group-id="9685327600-5">}</span><span·class="p"·data-group-id="9685327600-4">]</span><span·class="p">,</span><span·class="p"·data-group-id="9685327600-6">[</span><span·class="p"·data-group-id="9685327600-6">]</span><span·class="p">,</span><span·class="p"·data-group-id="9685327600-7">[</span><span·class="p"·data-group-id="9685327600-7">]</span><span·class="p"·data-group-id="9685327600-3">}</span><span·class="p"·data-group-id="9685327600-2">]</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9685327600-8">[</span><span·class="p"·data-group-id="9685327600-8">]</span><span·class="p"·data-group-id="9685327600-1">)</span><span·class="p">.</span><span·class="w"> | ||
| 1478 | </span><span·class="mi">1</span></code></pre><p>Only·trace·messages·sent·to·the·sender·itself:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="nc">trace</span><span·class="p">:</span><span·class="nf">send</span><span·class="p"·data-group-id="2962625734-1">(</span><span·class="n">Session</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2962625734-2">[</span><span·class="p"·data-group-id="2962625734-3">{</span><span·class="p"·data-group-id="2962625734-4">[</span><span·class="ss">'$1'</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">'_'</span><span·class="p"·data-group-id="2962625734-4">]</span><span·class="p">,</span><span·class="p"·data-group-id="2962625734-5">[</span><span·class="p"·data-group-id="2962625734-6">{</span><span·class="ss">'=:='</span><span·class="p">,</span><span·class="ss">'$1'</span><span·class="p">,</span><span·class="p"·data-group-id="2962625734-7">{</span><span·class="ss">self</span><span·class="p"·data-group-id="2962625734-7">}</span><span·class="p"·data-group-id="2962625734-6">}</span><span·class="p"·data-group-id="2962625734-5">]</span><span·class="p">,</span><span·class="p"·data-group-id="2962625734-8">[</span><span·class="p"·data-group-id="2962625734-8">]</span><span·class="p"·data-group-id="2962625734-3">}</span><span·class="p"·data-group-id="2962625734-2">]</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2962625734-9">[</span><span·class="p"·data-group-id="2962625734-9">]</span><span·class="p"·data-group-id="2962625734-1">)</span><span·class="p">.</span><span·class="w"> | ||
| 1479 | </span><span·class="mi">1</span></code></pre><p>Only·trace·messages·sent·to·other·nodes:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="nc">trace</span><span·class="p">:</span><span·class="nf">send</span><span·class="p"·data-group-id="8554484902-1">(</span><span·class="n">Session</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8554484902-2">[</span><span·class="p"·data-group-id="8554484902-3">{</span><span·class="p"·data-group-id="8554484902-4">[</span><span·class="ss">'$1'</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">'_'</span><span·class="p"·data-group-id="8554484902-4">]</span><span·class="p">,</span><span·class="p"·data-group-id="8554484902-5">[</span><span·class="p"·data-group-id="8554484902-6">{</span><span·class="ss">'=/='</span><span·class="p">,</span><span·class="p"·data-group-id="8554484902-7">{</span><span·class="nb">node</span><span·class="p">,</span><span·class="ss">'$1'</span><span·class="p"·data-group-id="8554484902-7">}</span><span·class="p">,</span><span·class="p"·data-group-id="8554484902-8">{</span><span·class="nb">node</span><span·class="p"·data-group-id="8554484902-8">}</span><span·class="p"·data-group-id="8554484902-6">}</span><span·class="p"·data-group-id="8554484902-5">]</span><span·class="p">,</span><span·class="p"·data-group-id="8554484902-9">[</span><span·class="p"·data-group-id="8554484902-9">]</span><span·class="p"·data-group-id="8554484902-3">}</span><span·class="p"·data-group-id="8554484902-2">]</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8554484902-10">[</span><span·class="p"·data-group-id="8554484902-10">]</span><span·class="p"·data-group-id="8554484902-1">)</span><span·class="p">.</span><span·class="w"> | ||
| 1480 | </span><span·class="mi">1</span></code></pre><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>A·match·specification·for·<code·class="inline">send</code>·trace·can·use·all·guard·and·body·functions | 1480 | </span><span·class="mi">1</span></code></pre><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>A·match·specification·for·<code·class="inline">send</code>·trace·can·use·all·guard·and·body·functions |
| 1481 | except·<code·class="inline">caller</code>.</p></section><p>Fails·by·raising·an·error·exception·with·an·error·reason·of:</p><ul><li><p><strong><code·class="inline">badarg</code></strong>·-·If·an·argument·is·invalid.</p></li><li><p><strong><code·class="inline">system_limit</code></strong>·-·If·a·match·specification·passed·as·argument·has·excessive | 1481 | except·<code·class="inline">caller</code>.</p></section><p>Fails·by·raising·an·error·exception·with·an·error·reason·of:</p><ul><li><p><strong><code·class="inline">badarg</code></strong>·-·If·an·argument·is·invalid.</p></li><li><p><strong><code·class="inline">system_limit</code></strong>·-·If·a·match·specification·passed·as·argument·has·excessive |
| 1482 | nesting·which·causes·scheduler·stack·exhaustion·for·the·scheduler·that·the | 1482 | nesting·which·causes·scheduler·stack·exhaustion·for·the·scheduler·that·the |
| 1483 | calling·process·is·executing·on. | 1483 | calling·process·is·executing·on. |
| 1484 | <a·href="../../../../erts-16.0/doc/html/erl_cmd.html#sched_thread_stack_size">Scheduler·stack·size</a>·can·be·configured | 1484 | <a·href="../../../../erts-16.0/doc/html/erl_cmd.html#sched_thread_stack_size">Scheduler·stack·size</a>·can·be·configured |
| 1485 | when·starting·the·runtime·system.</p></li></ul> | 1485 | when·starting·the·runtime·system.</p></li></ul> |
| 1486 | ··</section> | 1486 | ··</section> |
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| 1713 | ······<p·class="built-using"> | 1713 | ······<p·class="built-using"> |
| 1714 | ········Built·using | 1714 | ········Built·using |
| 1715 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1715 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1716 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1716 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1717 | ······</p> | 1717 | ······</p> |
| 1718 | <p>Copyright·©·1996-202 | 1718 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1719 | ····</footer> | 1719 | ····</footer> |
| 1720 | ··</div> | 1720 | ··</div> |
| 1721 | </main> | 1721 | </main> |
| 1722 | </div> | 1722 | </div> |
| 1723 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1723 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1724 | ··<script> | 1724 | ··<script> |
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| 531 | ········Built·using | 531 | ········Built·using |
| 532 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 532 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 533 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 533 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 534 | ······</p> | 534 | ······</p> |
| 535 | <p>Copyright·©·1996-202 | 535 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 536 | ····</footer> | 536 | ····</footer> |
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| 541 | ··<script> | 541 | ··<script> |
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| 35 | dist/lato-latin-ext-400-normal-N27NCBWW.woff2 | 35 | dist/lato-latin-ext-400-normal-N27NCBWW.woff2 |
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| 37 | dist/remixicon-NKANDIL5.woff2 | 37 | dist/remixicon-NKANDIL5.woff2 |
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| 40 | index.html | 40 | index.html |
| 41 | megaco.html | 41 | megaco.html |
| 42 | megaco_architecture.html | 42 | megaco_architecture.html |
| 43 | megaco_codec_meas.html | 43 | megaco_codec_meas.html |
| 44 | megaco_codec_mstone1.html | 44 | megaco_codec_mstone1.html |
| 45 | megaco_codec_mstone2.html | 45 | megaco_codec_mstone2.html |
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| 144 | ········Built·using | 144 | ········Built·using |
| 145 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 145 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 146 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 146 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 147 | ······</p> | 147 | ······</p> |
| 148 | <p>Copyright·©·1996-202 | 148 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 149 | ····</footer> | 149 | ····</footer> |
| 150 | ··</div> | 150 | ··</div> |
| 151 | </main> | 151 | </main> |
| 152 | </div> | 152 | </div> |
| 153 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 153 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 154 | ··<script> | 154 | ··<script> |
| 155 | ··let·initialized·=·false; | 155 | ··let·initialized·=·false; |
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| 298 | ······<p·class="built-using"> | 298 | ······<p·class="built-using"> |
| 299 | ········Built·using | 299 | ········Built·using |
| 300 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 300 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 301 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 301 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 302 | ······</p> | 302 | ······</p> |
| 303 | <p>Copyright·©·1996-202 | 303 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 304 | ····</footer> | 304 | ····</footer> |
| 305 | ··</div> | 305 | ··</div> |
| 306 | </main> | 306 | </main> |
| 307 | </div> | 307 | </div> |
| 308 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 308 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 309 | ··<script> | 309 | ··<script> |
| 310 | ··let·initialized·=·false; | 310 | ··let·initialized·=·false; |
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| 3072 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·print_version_info(Versions)·->·<a·href="#t:void/0">void</a>()·when·Versions·::·[VersionInfo],·VersionInfo·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>().</pre> | 3072 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·print_version_info(Versions)·->·<a·href="#t:void/0">void</a>()·when·Versions·::·[VersionInfo],·VersionInfo·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>().</pre> |
| 3073 | ······</div> | 3073 | ······</div> |
| 3074 | <p>Utility·function·to·produce·a·formated·printout·of·the·versions·info·generated | 3074 | <p>Utility·function·to·produce·a·formated·printout·of·the·versions·info·generated |
| 3075 | by·the·<code·class="inline">versions1</code>·and·<code·class="inline">versions2</code>·functions.</p><p>The·function·print_version_info/0·uses·the·result·of·function·version1/0·as | 3075 | by·the·<code·class="inline">versions1</code>·and·<code·class="inline">versions2</code>·functions.</p><p>The·function·print_version_info/0·uses·the·result·of·function·version1/0·as |
| 3076 | <code·class="inline">VersionInfo</code>.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">···········</span><span·class="p"·data-group-id=" | 3076 | <code·class="inline">VersionInfo</code>.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">···········</span><span·class="p"·data-group-id="3925157414-1">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">V</span><span·class="p"·data-group-id="3925157414-1">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class[·...·truncated·by·diffoscope;·len:·441,·SHA:·3ff18167ed4e23ffae6484b61095421c4fd3ec30c34bdbd23ab9270d2aee3864·...·]-3">)</span><span·class="p">.</span></code></pre> |
| 3077 | ··</section> | 3077 | ··</section> |
| 3078 | </section> | 3078 | </section> |
| 3079 | <section·class="detail"·id="process_received_message/4"> | 3079 | <section·class="detail"·id="process_received_message/4"> |
| 3080 | ··<div·class="detail-header"> | 3080 | ··<div·class="detail-header"> |
| 3081 | ····<a·href="#process_received_message/4"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 3081 | ····<a·href="#process_received_message/4"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 3082 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 3082 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
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| 3930 | ······<p·class="built-using"> | 3930 | ······<p·class="built-using"> |
| 3931 | ········Built·using | 3931 | ········Built·using |
| 3932 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 3932 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 3933 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 3933 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 3934 | ······</p> | 3934 | ······</p> |
| 3935 | <p>Copyright·©·1996-202 | 3935 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 3936 | ····</footer> | 3936 | ····</footer> |
| 3937 | ··</div> | 3937 | ··</div> |
| 3938 | </main> | 3938 | </main> |
| 3939 | </div> | 3939 | </div> |
| 3940 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 3940 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 3941 | ··<script> | 3941 | ··<script> |
| 3942 | ··let·initialized·=·false; | 3942 | ··let·initialized·=·false; |
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| 255 | ······<p·class="built-using"> | 255 | ······<p·class="built-using"> |
| 256 | ········Built·using | 256 | ········Built·using |
| 257 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 257 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 258 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 258 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 259 | ······</p> | 259 | ······</p> |
| 260 | <p>Copyright·©·1996-202 | 260 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 261 | ····</footer> | 261 | ····</footer> |
| 262 | ··</div> | 262 | ··</div> |
| 263 | </main> | 263 | </main> |
| 264 | </div> | 264 | </div> |
| 265 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 265 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 266 | ··<script> | 266 | ··<script> |
| 267 | ··let·initialized·=·false; | 267 | ··let·initialized·=·false; |
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| 252 | ······<p·class="built-using"> | 252 | ······<p·class="built-using"> |
| 253 | ········Built·using | 253 | ········Built·using |
| 254 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 254 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 255 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 255 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 256 | ······</p> | 256 | ······</p> |
| 257 | <p>Copyright·©·1996-202 | 257 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 258 | ····</footer> | 258 | ····</footer> |
| 259 | ··</div> | 259 | ··</div> |
| 260 | </main> | 260 | </main> |
| 261 | </div> | 261 | </div> |
| 262 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 262 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 263 | ··<script> | 263 | ··<script> |
| 264 | ··let·initialized·=·false; | 264 | ··let·initialized·=·false; |
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| 615 | ······<p·class="built-using"> | 615 | ······<p·class="built-using"> |
| 616 | ········Built·using | 616 | ········Built·using |
| 617 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 617 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 618 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 618 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 619 | ······</p> | 619 | ······</p> |
| 620 | <p>Copyright·©·1996-202 | 620 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 621 | ····</footer> | 621 | ····</footer> |
| 622 | ··</div> | 622 | ··</div> |
| 623 | </main> | 623 | </main> |
| 624 | </div> | 624 | </div> |
| 625 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 625 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 626 | ··<script> | 626 | ··<script> |
| 627 | ··let·initialized·=·false; | 627 | ··let·initialized·=·false; |
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| 253 | ······<p·class="built-using"> | 253 | ······<p·class="built-using"> |
| 254 | ········Built·using | 254 | ········Built·using |
| 255 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 255 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 256 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 256 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 257 | ······</p> | 257 | ······</p> |
| 258 | <p>Copyright·©·1996-202 | 258 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 259 | ····</footer> | 259 | ····</footer> |
| 260 | ··</div> | 260 | ··</div> |
| 261 | </main> | 261 | </main> |
| 262 | </div> | 262 | </div> |
| 263 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 263 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 264 | ··<script> | 264 | ··<script> |
| 265 | ··let·initialized·=·false; | 265 | ··let·initialized·=·false; |
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| 253 | ······<p·class="built-using"> | 253 | ······<p·class="built-using"> |
| 254 | ········Built·using | 254 | ········Built·using |
| 255 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 255 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 256 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 256 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 257 | ······</p> | 257 | ······</p> |
| 258 | <p>Copyright·©·1996-202 | 258 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 259 | ····</footer> | 259 | ····</footer> |
| 260 | ··</div> | 260 | ··</div> |
| 261 | </main> | 261 | </main> |
| 262 | </div> | 262 | </div> |
| 263 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 263 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 264 | ··<script> | 264 | ··<script> |
| 265 | ··let·initialized·=·false; | 265 | ··let·initialized·=·false; |
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| 168 | file·(see·below·for·more·info).·The·messages·in·this·file·is·encoded·with·just | 168 | file·(see·below·for·more·info).·The·messages·in·this·file·is·encoded·with·just |
| 169 | one·codec.·During·measurement·initiation,·the·messages·are·read·and·then | 169 | one·codec.·During·measurement·initiation,·the·messages·are·read·and·then |
| 170 | transformed·to·all·codec·formats·used·in·the·measurement.</p><p>The·message·transformation·is·done·by·the·transformation·module.·It·is·used·to | 170 | transformed·to·all·codec·formats·used·in·the·measurement.</p><p>The·message·transformation·is·done·by·the·transformation·module.·It·is·used·to |
| 171 | transform·a·set·of·messages·encoded·with·one·codec·into·the·other·base·codec's.</p><h4>Measurement(s)</h4><p>There·are·two·different·measurement·tools:</p><ul><li><p><em>meas</em>:</p><p>Used·to·perform·codec·measurements.·That·is,·to·see·what·kind·of·performance | 171 | transform·a·set·of·messages·encoded·with·one·codec·into·the·other·base·codec's.</p><h4>Measurement(s)</h4><p>There·are·two·different·measurement·tools:</p><ul><li><p><em>meas</em>:</p><p>Used·to·perform·codec·measurements.·That·is,·to·see·what·kind·of·performance |
| 172 | can·be·expected·by·the·different·codecs·provided·by·the·megaco·application.</p><p>The·measurement·is·done·by·iterating·over·the·decode/encode·function·for | 172 | can·be·expected·by·the·different·codecs·provided·by·the·megaco·application.</p><p>The·measurement·is·done·by·iterating·over·the·decode/encode·function·for |
| 173 | approx·2·seconds·per·message·and·counting·the·number·of·decodes/encodes.</p><p>Is·best·run·by·modifying·the·meas.sh.skel·skeleton·script·provided·by·the | 173 | approx·2·seconds·per·message·and·counting·the·number·of·decodes/encodes.</p><p>Is·best·run·by·modifying·the·meas.sh.skel·skeleton·script·provided·by·the |
| 174 | tool.</p><p>To·run·it·manually·do·the·following:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">········</span><span·class="c1">%·erl·-pa·<path-megaco-ebin-dir>·-pa·<path-to-meas-module-dir></span><span·class="w"> | 174 | tool.</p><p>To·run·it·manually·do·the·following:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">········</span><span·class="c1">%·erl·-pa·<path-megaco-ebin-dir>·-pa·<path-to-meas-module-dir></span><span·class="w"> |
| 175 | ········</span><span·class="n">Erlang</span><span·class="w">·</span><span·class="p"·data-group-id=" | 175 | ········</span><span·class="n">Erlang</span><span·class="w">·</span><span·class="p"·data-group-id="2911145992-1">(</span><span·class="n">BEAM</span><span·class="p"·data-group-id="2911145992-1">)</span><span·class="w">·</span><span·class="ss">emulator</span><span·class="w">·</span><span·class="ss">version</span><span·class="w">·</span><span·class="mf">5.[·...·truncated·by·diffoscope;·len:·156,·SHA:·eb29072498cba83f9ed46b956d54b0ed46fb53b66ef8ef52e4444c0fba9da994·...·]-2">]</span><span·class="w"> |
| 176 | ········</span><span·class="n">Eshell</span><span·class="w">·</span><span·class="n">V12</span><span·class="p">.</span><span·class="mi">2</span><span·class="w">··</span><span·class="p"·data-group-id=" | 176 | ········</span><span·class="n">Eshell</span><span·class="w">·</span><span·class="n">V12</span><span·class="p">.</span><span·class="mi">2</span><span·class="w">··</span><span·class="p"·data-group-id="2911145992-3">(</span><span·class="ss">abort</span><span·class="w">·</span><span·class="ss">with</span><span·class="w">·</span><span·class="err">^</span><span·class="n">G</span><span·class="p"·data-group-id="2911145992-3">)</span><span·class="w"> |
| 177 | ········</span><span·class="mi">1</span><span·class="o">></span><span·class="w">·</span><span·class="nc">megaco_codec_meas</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id=" | 177 | ········</span><span·class="mi">1</span><span·class="o">></span><span·class="w">·</span><span·class="nc">megaco_codec_meas</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id="2911145992-4">(</span><span·class="p"·data-group-id="2911145992-4">)</span><span·class="p">.</span><span·class="w"> |
| 178 | ········</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> | 178 | ········</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> |
| 179 | ········</span><span·class="mi">2</span><span·class="o">></span><span·class="w">·</span><span·class="nf">halt</span><span·class="p"·data-group-id=" | 179 | ········</span><span·class="mi">2</span><span·class="o">></span><span·class="w">·</span><span·class="nf">halt</span><span·class="p"·data-group-id="2911145992-5">(</span><span·class="p"·data-group-id="2911145992-5">)</span><span·class="p">.</span></code></pre><p>or·to·make·it·even·easier,·assuming·a·measure·shall·be·done·on·all·the·codecs |
| 180 | (as·above):</p><pre><code·class="text">········%·erl·-noshell·-pa·<path-megaco-ebin-dir>·\\ | 180 | (as·above):</p><pre><code·class="text">········%·erl·-noshell·-pa·<path-megaco-ebin-dir>·\\ |
| 181 | ··············-pa·<path-to-meas-module-dir>·\\ | 181 | ··············-pa·<path-to-meas-module-dir>·\\ |
| 182 | ··············-s·megaco_codec_meas·-s·init·stop</code></pre><p>When·run·as·above·(this·will·take·some·time),·the·measurement·process·is·done | 182 | ··············-s·megaco_codec_meas·-s·init·stop</code></pre><p>When·run·as·above·(this·will·take·some·time),·the·measurement·process·is·done |
| 183 | as·follows:</p><pre><code·class="text">For·each·codec: | 183 | as·follows:</p><pre><code·class="text">For·each·codec: |
| 184 | ····For·each·message: | 184 | ····For·each·message: |
| 185 | ········Read·the·message·from·the·file | 185 | ········Read·the·message·from·the·file |
| 186 | ············Detect·message·version | 186 | ············Detect·message·version |
| Offset 195, 18 lines modified | Offset 195, 18 lines modified | ||
| 195 | tool.</p><p>The·<em>mstone2</em>·is·similar·to·the·<em>mstone1</em>·tool,·but·in·this·case,·each·created | 195 | tool.</p><p>The·<em>mstone2</em>·is·similar·to·the·<em>mstone1</em>·tool,·but·in·this·case,·each·created |
| 196 | process·makes·only·<em>one</em>·run·through·the·messages·and·then·exits.·A·soon·as·a | 196 | process·makes·only·<em>one</em>·run·through·the·messages·and·then·exits.·A·soon·as·a |
| 197 | process·exits,·a·new·process·(with·the·same·config·and·messages)·is·created·to | 197 | process·exits,·a·new·process·(with·the·same·config·and·messages)·is·created·to |
| 198 | takes·its·place.·The·number·of·messages·processed·in·total·is·the·mstone2(1) | 198 | takes·its·place.·The·number·of·messages·processed·in·total·is·the·mstone2(1) |
| 199 | value.</p></li></ul><p>Both·these·tools·use·the·message·package·(time_test.msgs)·provided·with·the | 199 | value.</p></li></ul><p>Both·these·tools·use·the·message·package·(time_test.msgs)·provided·with·the |
| 200 | tool(s),·although·it·can·run·on·any·message·package·as·long·as·it·has·the·same | 200 | tool(s),·although·it·can·run·on·any·message·package·as·long·as·it·has·the·same |
| 201 | structure.</p><h4>Message·package·file</h4><p>This·is·simply·an·erlang·compatible·text-file·with·the·following·structure: | 201 | structure.</p><h4>Message·package·file</h4><p>This·is·simply·an·erlang·compatible·text-file·with·the·following·structure: |
| 202 | <code·class="inline">{codec_name(),·messages_list()}</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">codec_name</span><span·class="p"·data-group-id=" | 202 | <code·class="inline">{codec_name(),·messages_list()}</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">codec_name</span><span·class="p"·data-group-id="6181660654-1">(</span><span·class="p"·data-group-id="6181660654-1">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">pretty</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·c[·...·truncated·by·diffoscope;·len:·687,·SHA:·3c2e85cfccc7187cd047f70d5279917bb11fca9d3b8b0210c49e897914090efb·...·]-2">)</span><span·class="w"> |
| 203 | </span><span·class="nf">messages_list</span><span·class="p"·data-group-id=" | 203 | </span><span·class="nf">messages_list</span><span·class="p"·data-group-id="6181660654-3">(</span><span·class="p"·data-group-id="6181660654-3">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="6181660654-4">[</span><span·class="p"·data-group-id="6181660654-5">{</span><sp[·...·truncated·by·diffoscope;·len:·418,·SHA:·ca70aedfca81338e3f9095406b82e9db05f6d5d6e6a978bf56814c0affaadd38·...·]-4">]</span><span·class="w"> |
| 204 | </span><span·class="nf">message_name</span><span·class="p"·data-group-id=" | 204 | </span><span·class="nf">message_name</span><span·class="p"·data-group-id="6181660654-8">(</span><span·class="p"·data-group-id="6181660654-8">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">atom</span><span·class="p"·data-group-id="6181660654-9">(</span><span·class="p"·data-group-i[·...·truncated·by·diffoscope;·len:·13,·SHA:·66299f1647684b4b35031530bfe32951768196ae47633e28dc99f21a5c452ec0·...·]-9">)</span><span·class="w"> |
| 205 | </span><span·class="nf">message</span><span·class="p"·data-group-id=" | 205 | </span><span·class="nf">message</span><span·class="p"·data-group-id="6181660654-10">(</span><span·class="p"·data-group-id="6181660654-10">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">binary</span><span·class="p"·data-group-id="6181660654-11">(</span><span·class="p"·data-gr[·...·truncated·by·diffoscope;·len:·18,·SHA:·d1040440d4424241bb3ce32bf5ab234eee4f0eb56790d21041eb4f4c5348ecf8·...·]-11">)</span></code></pre><p>The·codec·name·is·the·name·of·the·codec·with·which·all·messages·in·the |
| 206 | <code·class="inline">message_list()</code>·has·been·encoded.</p><p>This·file·can·be·<code·class="inline">exported</code>·to·a·file·structure·by·calling·the | 206 | <code·class="inline">message_list()</code>·has·been·encoded.</p><p>This·file·can·be·<code·class="inline">exported</code>·to·a·file·structure·by·calling·the |
| 207 | <a·href="megaco_codec_transform.html#export_messages">export_messages</a>·function.·This·can | 207 | <a·href="megaco_codec_transform.html#export_messages">export_messages</a>·function.·This·can |
| 208 | be·usefull·if·a·measurement·shall·be·done·with·an·external·tool.·Exporting·the | 208 | be·usefull·if·a·measurement·shall·be·done·with·an·external·tool.·Exporting·the |
| 209 | messages·creates·a·directory·tree·with·the·following·structure:</p><pre><code·class="text"><message·package>/pretty/<message-files> | 209 | messages·creates·a·directory·tree·with·the·following·structure:</p><pre><code·class="text"><message·package>/pretty/<message-files> |
| 210 | ··················compact/ | 210 | ··················compact/ |
| 211 | ··················per/ | 211 | ··················per/ |
| 212 | ··················ber/<message-files> | 212 | ··················ber/<message-files> |
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| 262 | ······<p·class="built-using"> | 262 | ······<p·class="built-using"> |
| 263 | ········Built·using | 263 | ········Built·using |
| 264 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 264 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 265 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 265 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 266 | ······</p> | 266 | ······</p> |
| 267 | <p>Copyright·©·1996-202 | 267 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 268 | ····</footer> | 268 | ····</footer> |
| 269 | ··</div> | 269 | ··</div> |
| 270 | </main> | 270 | </main> |
| 271 | </div> | 271 | </div> |
| 272 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 272 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 273 | ··<script> | 273 | ··<script> |
| 274 | ··let·initialized·=·false; | 274 | ··let·initialized·=·false; |
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| 488 | ······<p·class="built-using"> | 488 | ······<p·class="built-using"> |
| 489 | ········Built·using | 489 | ········Built·using |
| 490 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 490 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 491 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 491 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 492 | ······</p> | 492 | ······</p> |
| 493 | <p>Copyright·©·1996-202 | 493 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 494 | ····</footer> | 494 | ····</footer> |
| 495 | ··</div> | 495 | ··</div> |
| 496 | </main> | 496 | </main> |
| 497 | </div> | 497 | </div> |
| 498 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 498 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 499 | ··<script> | 499 | ··<script> |
| 500 | ··let·initialized·=·false; | 500 | ··let·initialized·=·false; |
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| 273 | ······<p·class="built-using"> | 273 | ······<p·class="built-using"> |
| 274 | ········Built·using | 274 | ········Built·using |
| 275 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 275 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 276 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 276 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 277 | ······</p> | 277 | ······</p> |
| 278 | <p>Copyright·©·1996-202 | 278 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 279 | ····</footer> | 279 | ····</footer> |
| 280 | ··</div> | 280 | ··</div> |
| 281 | </main> | 281 | </main> |
| 282 | </div> | 282 | </div> |
| 283 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 283 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 284 | ··<script> | 284 | ··<script> |
| 285 | ··let·initialized·=·false; | 285 | ··let·initialized·=·false; |
| Offset 170, 67 lines modified | Offset 170, 67 lines modified | ||
| 170 | ···························} | 170 | ···························} |
| 171 | ···················} | 171 | ···················} |
| 172 | ···········} | 172 | ···········} |
| 173 | ···}</code></pre><p>Then·the·compact·version·without·indentation·and·with·short·keywords:</p><pre><code·class="text"> | 173 | ···}</code></pre><p>Then·the·compact·version·without·indentation·and·with·short·keywords:</p><pre><code·class="text"> |
| 174 | ···!/1·[124.124.124.222] | 174 | ···!/1·[124.124.124.222] |
| 175 | ···T=9998{C=-{SC=ROOT{SV{MT=RS,AD=55555,PF=ResGW/1,RE="901·Cold·Boot"}}}}</code></pre><p>And·the·programmers·view·of·the·same·message.·First·a·list·of·ActionRequest | 175 | ···T=9998{C=-{SC=ROOT{SV{MT=RS,AD=55555,PF=ResGW/1,RE="901·Cold·Boot"}}}}</code></pre><p>And·the·programmers·view·of·the·same·message.·First·a·list·of·ActionRequest |
| 176 | records·are·constructed·and·then·it·is·sent·with·one·of·the·send·functions·in | 176 | records·are·constructed·and·then·it·is·sent·with·one·of·the·send·functions·in |
| 177 | the·API:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">··</span><span·class="n">Prof</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">'ServiceChangeProfile'</span><span·class="p"·data-group-id=" | 177 | the·API:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">··</span><span·class="n">Prof</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">'ServiceChangeProfile'</span><span·class="p"·data-group-id="5006779900-1">{</span><span·class="ss">profileName</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"resgw"</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">version</span><span·cl[·...·truncated·by·diffoscope;·len:·130,·SHA:·197a20dc6ab3ea8e3819b9f36fe7ac2a04be0329b1e9de5b68021e0ecd1dd38d·...·]-1">}</span><span·class="p">,</span><span·class="w"> |
| 178 | ··</span><span·class="n">Parm</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">'ServiceChangeParm'</span><span·class="p"·data-group-id=" | 178 | ··</span><span·class="n">Parm</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">'ServiceChangeParm'</span><span·class="p"·data-group-id="5006779900-2">{</span><span·class="ss">serviceChangeMethod</span><span·class="w">··</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">restart</span><span·class="p">,</span><span·class="w"> |
| 179 | ······························</span><span·class="ss">serviceChangeAddress</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 179 | ······························</span><span·class="ss">serviceChangeAddress</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="5006779900-3">{</span><span·class="ss">portNumber</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">55555</span><span·class="p"·data-group-id="5006779900-3">}</span><span·class="p">,</span><span·class="w"> |
| 180 | ······························</span><span·class="ss">serviceChangeReason</span><span·class="w">··</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"901·Cold·Boot"</span><span·class="p">,</span><span·class="w"> | 180 | ······························</span><span·class="ss">serviceChangeReason</span><span·class="w">··</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"901·Cold·Boot"</span><span·class="p">,</span><span·class="w"> |
| 181 | ······························</span><span·class="ss">serviceChangeProfile</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">Prof</span><span·class="p"·data-group-id=" | 181 | ······························</span><span·class="ss">serviceChangeProfile</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">Prof</span><span·class="p"·data-group-id="5006779900-2">}</span><span·class="p">,</span><span·class="w"> |
| 182 | ··</span><span·class="n">Req</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">'ServiceChangeRequest'</span><span·class="p"·data-group-id=" | 182 | ··</span><span·class="n">Req</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">'ServiceChangeRequest'</span><span·class="p"·data-group-id="5006779900-4">{</span><span·class="ss">terminationID</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="5006779900-5">[</span><span·class="o">?</span><span·class="ss">megaco_root_termination_id</spa[·...·truncated·by·diffoscope;·len:·43,·SHA:·abe64bcbb161eacf288124de40120b3367f7bf8163cbdf930a7e8777551cc654·...·]-5">]</span><span·class="p">,</span><span·class="w"> |
| 183 | ································</span><span·class="ss">serviceChangeParms</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">Parm</span><span·class="p"·data-group-id=" | 183 | ································</span><span·class="ss">serviceChangeParms</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">Parm</span><span·class="p"·data-group-id="5006779900-4">}</span><span·class="p">,</span><span·class="w"> |
| 184 | ··</span><span·class="n">Actions</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 184 | ··</span><span·class="n">Actions</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="5006779900-6">[</span><span·class="o">#</span><span·class="ss">'ActionRequest'</span><span·class="p"·data-group-id="5006779900-7">{</span><span·class="ss">contextId</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">?</span><span·class="ss">megaco_null_context_id</span><span·class="p">,</span><span·class="w"> |
| 185 | ······························</span><span·class="ss">commandRequests</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 185 | ······························</span><span·class="ss">commandRequests</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="5006779900-8">{</span><span·class="ss">serviceChangeReq</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Req</span><span·class="p"·data-group-id="5006779900-8">}</span><span·class="p"·data-group-id="5006779900-7">}</span><span·class="p[·...·truncated·by·diffoscope;·len:·27,·SHA:·25fcaf751fef1a6f1f4cdc1034803e28e0722ab8f344b8fdcaffe4e6c18c2996·...·]-6">]</span><span·class="p">,</span><span·class="w"> |
| 186 | ··</span><span·class="nc">megaco</span><span·class="p">:</span><span·class="nf">call</span><span·class="p"·data-group-id=" | 186 | ··</span><span·class="nc">megaco</span><span·class="p">:</span><span·class="nf">call</span><span·class="p"·data-group-id="5006779900-9">(</span><span·class="n">ConnHandle</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Actions</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Config</span><span·class="p"·data-group-id="5006779900-9">)[·...·truncated·by·diffoscope;·len:·217,·SHA:·eb9b0ca1663bc4a44d9b0ce113bc7c0c5d238bfb7f8040bd387f4f9091fa64c7·...·]-1">{</span><span·class="ss">'MegacoMessage'</span><span·class="p">,</span><span·class="w"> |
| 187 | ···</span><span·class="ss">asn1_NOVALUE</span><span·class="p">,</span><span·class="w"> | 187 | ···</span><span·class="ss">asn1_NOVALUE</span><span·class="p">,</span><span·class="w"> |
| 188 | ···</span><span·class="p"·data-group-id=" | 188 | ···</span><span·class="p"·data-group-id="8521669913-2">{</span><span·class="ss">'Message'</span><span·class="p">,</span><span·class="w"> |
| 189 | ····</span><span·class="mi">1</span><span·class="p">,</span><span·class="w"> | 189 | ····</span><span·class="mi">1</span><span·class="p">,</span><span·class="w"> |
| 190 | ····</span><span·class="p"·data-group-id=" | 190 | ····</span><span·class="p"·data-group-id="8521669913-3">{</span><span·class="ss">ip4Address</span><span·class="p">,</span><span·class="p"·data-group-id="8521669913-4">{</span><span·class="ss">'IP4Address'</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="[·...·truncated·by·diffoscope;·len:·433,·SHA:·06449ccee61d87b4e422b31294531dd7323199f1a5b212ecefdd194d1ca95d63·...·]-3">}</span><span·class="p">,</span><span·class="w"> |
| 191 | ····</span><span·class="p"·data-group-id=" | 191 | ····</span><span·class="p"·data-group-id="8521669913-6">{</span><span·class="ss">transactions</span><span·class="p">,</span><span·class="w"> |
| 192 | ·····</span><span·class="p"·data-group-id=" | 192 | ·····</span><span·class="p"·data-group-id="8521669913-7">[</span><span·class="w"> |
| 193 | ······</span><span·class="p"·data-group-id=" | 193 | ······</span><span·class="p"·data-group-id="8521669913-8">{</span><span·class="ss">transactionRequest</span><span·class="p">,</span><span·class="w"> |
| 194 | ·······</span><span·class="p"·data-group-id=" | 194 | ·······</span><span·class="p"·data-group-id="8521669913-9">{</span><span·class="ss">'TransactionRequest'</span><span·class="p">,</span><span·class="w"> |
| 195 | ·········</span><span·class="mi">9998</span><span·class="p">,</span><span·class="w"> | 195 | ·········</span><span·class="mi">9998</span><span·class="p">,</span><span·class="w"> |
| 196 | ·········</span><span·class="p"·data-group-id=" | 196 | ·········</span><span·class="p"·data-group-id="8521669913-10">[</span><span·class="p"·data-group-id="8521669913-11">{</span><span·class="ss">'ActionRequest'</span><span·class="p">,</span><span·class="w"> |
| 197 | ···········</span><span·class="mi">0</span><span·class="p">,</span><span·class="w"> | 197 | ···········</span><span·class="mi">0</span><span·class="p">,</span><span·class="w"> |
| 198 | ···········</span><span·class="ss">asn1_NOVALUE</span><span·class="p">,</span><span·class="w"> | 198 | ···········</span><span·class="ss">asn1_NOVALUE</span><span·class="p">,</span><span·class="w"> |
| 199 | ···········</span><span·class="ss">asn1_NOVALUE</span><span·class="p">,</span><span·class="w"> | 199 | ···········</span><span·class="ss">asn1_NOVALUE</span><span·class="p">,</span><span·class="w"> |
| 200 | ···········</span><span·class="p"·data-group-id=" | 200 | ···········</span><span·class="p"·data-group-id="8521669913-12">[</span><span·class="w"> |
| 201 | ············</span><span·class="p"·data-group-id=" | 201 | ············</span><span·class="p"·data-group-id="8521669913-13">{</span><span·class="ss">'CommandRequest'</span><span·class="p">,</span><span·class="w"> |
| 202 | ·············</span><span·class="p"·data-group-id=" | 202 | ·············</span><span·class="p"·data-group-id="8521669913-14">{</span><span·class="ss">serviceChangeReq</span><span·class="p">,</span><span·class="w"> |
| 203 | ··············</span><span·class="p"·data-group-id=" | 203 | ··············</span><span·class="p"·data-group-id="8521669913-15">{</span><span·class="ss">'ServiceChangeRequest'</span><span·class="p">,</span><span·class="w"> |
| 204 | ···············</span><span·class="p"·data-group-id=" | 204 | ···············</span><span·class="p"·data-group-id="8521669913-16">[</span><span·class="w"> |
| 205 | ················</span><span·class="p"·data-group-id=" | 205 | ················</span><span·class="p"·data-group-id="8521669913-17">{</span><span·class="ss">megaco_term_id</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">false</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8521669913-18">[</span><span·class="s">[·...·truncated·by·diffoscope;·len:·172,·SHA:·6af6dc3f58b432e552120484f77f183539f9ed02e04436e77a914766cce5694e·...·]-16">]</span><span·class="p">,</span><span·class="w"> |
| 206 | ················</span><span·class="p"·data-group-id=" | 206 | ················</span><span·class="p"·data-group-id="8521669913-19">{</span><span·class="ss">'ServiceChangeParm'</span><span·class="p">,</span><span·class="w"> |
| 207 | ·················</span><span·class="ss">restart</span><span·class="p">,</span><span·class="w"> | 207 | ·················</span><span·class="ss">restart</span><span·class="p">,</span><span·class="w"> |
| 208 | ·················</span><span·class="p"·data-group-id=" | 208 | ·················</span><span·class="p"·data-group-id="8521669913-20">{</span><span·class="ss">portNumber</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">55555</span><span·class="p"·data-group-id="8521669913-20">}</span><span·class="p">,</span><span·class="w"> |
| 209 | ·················</span><span·class="ss">asn1_NOVALUE</span><span·class="p">,</span><span·class="w"> | 209 | ·················</span><span·class="ss">asn1_NOVALUE</span><span·class="p">,</span><span·class="w"> |
| 210 | ·················</span><span·class="p"·data-group-id=" | 210 | ·················</span><span·class="p"·data-group-id="8521669913-21">{</span><span·class="ss">'ServiceChangeProfile'</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"resgw"</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">version</span><span·class=[·...·truncated·by·diffoscope;·len:·126,·SHA:·a7883a7389758747e661b858aa6cb7acb9e4295db7ced0f86742d4bea7c43f5b·...·]-21">}</span><span·class="p">,</span><span·class="w"> |
| 211 | ·················</span><span·class="s">"901·MG·Cold·Boot"</span><span·class="p">,</span><span·class="w"> | 211 | ·················</span><span·class="s">"901·MG·Cold·Boot"</span><span·class="p">,</span><span·class="w"> |
| 212 | ·················</span><span·class="ss">asn1_NOVALUE</span><span·class="p">,</span><span·class="w"> | 212 | ·················</span><span·class="ss">asn1_NOVALUE</span><span·class="p">,</span><span·class="w"> |
| 213 | ·················</span><span·class="ss">asn1_NOVALUE</span><span·class="p">,</span><span·class="w"> | 213 | ·················</span><span·class="ss">asn1_NOVALUE</span><span·class="p">,</span><span·class="w"> |
| 214 | ·················</span><span·class="ss">asn1_NOVALUE</span><span·class="w"> | 214 | ·················</span><span·class="ss">asn1_NOVALUE</span><span·class="w"> |
| 215 | ················</span><span·class="p"·data-group-id=" | 215 | ················</span><span·class="p"·data-group-id="8521669913-19">}</span><span·class="w"> |
| 216 | ··············</span><span·class="p"·data-group-id=" | 216 | ··············</span><span·class="p"·data-group-id="8521669913-15">}</span><span·class="w"> |
| 217 | ·············</span><span·class="p"·data-group-id=" | 217 | ·············</span><span·class="p"·data-group-id="8521669913-14">}</span><span·class="p">,</span><span·class="w"> |
| 218 | ·············</span><span·class="ss">asn1_NOVALUE</span><span·class="p">,</span><span·class="w"> | 218 | ·············</span><span·class="ss">asn1_NOVALUE</span><span·class="p">,</span><span·class="w"> |
| 219 | ·············</span><span·class="ss">asn1_NOVALUE</span><span·class="w"> | 219 | ·············</span><span·class="ss">asn1_NOVALUE</span><span·class="w"> |
| 220 | ············</span><span·class="p"·data-group-id=" | 220 | ············</span><span·class="p"·data-group-id="8521669913-13">}</span><span·class="w"> |
| 221 | ···········</span><span·class="p"·data-group-id=" | 221 | ···········</span><span·class="p"·data-group-id="8521669913-12">]</span><span·class="w"> |
| 222 | ··········</span><span·class="p"·data-group-id=" | 222 | ··········</span><span·class="p"·data-group-id="8521669913-11">}</span><span·class="w"> |
| 223 | ·········</span><span·class="p"·data-group-id=" | 223 | ·········</span><span·class="p"·data-group-id="8521669913-10">]</span><span·class="w"> |
| 224 | ·······</span><span·class="p"·data-group-id=" | 224 | ·······</span><span·class="p"·data-group-id="8521669913-9">}</span><span·class="w"> |
| 225 | ······</span><span·class="p"·data-group-id=" | 225 | ······</span><span·class="p"·data-group-id="8521669913-8">}</span><span·class="w"> |
| 226 | ·····</span><span·class="p"·data-group-id=" | 226 | ·····</span><span·class="p"·data-group-id="8521669913-7">]</span><span·class="w"> |
| 227 | ····</span><span·class="p"·data-group-id=" | 227 | ····</span><span·class="p"·data-group-id="8521669913-6">}</span><span·class="w"> |
| 228 | ···</span><span·class="p"·data-group-id=" | 228 | ···</span><span·class="p"·data-group-id="8521669913-2">}</span><span·class="w"> |
| 229 | ··</span><span·class="p"·data-group-id=" | 229 | ··</span><span·class="p"·data-group-id="8521669913-1">}</span></code></pre><p>The·following·encoding·modules·are·provided:</p><ul><li>megaco_pretty_text_encoder·-·encodes·messages·into·pretty·text·format,·decodes |
| 230 | both·pretty·as·well·as·compact·text.</li><li>megaco_compact_text_encoder·-·encodes·messages·into·compact·text·format, | 230 | both·pretty·as·well·as·compact·text.</li><li>megaco_compact_text_encoder·-·encodes·messages·into·compact·text·format, |
| 231 | decodes·both·pretty·as·well·as·compact·text.</li><li>megaco_binary_encoder·-·encode/decode·ASN.1·BER·messages.·This·encoder | 231 | decodes·both·pretty·as·well·as·compact·text.</li><li>megaco_binary_encoder·-·encode/decode·ASN.1·BER·messages.·This·encoder |
| 232 | implements·the·fastest·of·the·BER·encoders/decoders.·Recommended·binary·codec.</li><li>megaco_ber_encoder·-·encode/decode·ASN.1·BER·messages.</li><li>megaco_per_encoder·-·encode/decode·ASN.1·PER·messages.·N.B.·that·this·format | 232 | implements·the·fastest·of·the·BER·encoders/decoders.·Recommended·binary·codec.</li><li>megaco_ber_encoder·-·encode/decode·ASN.1·BER·messages.</li><li>megaco_per_encoder·-·encode/decode·ASN.1·PER·messages.·N.B.·that·this·format |
| 233 | is·not·included·in·the·Megaco·standard.</li><li>megaco_erl_dist_encoder·-·encodes·messages·into·Erlangs·distribution·format. | 233 | is·not·included·in·the·Megaco·standard.</li><li>megaco_erl_dist_encoder·-·encodes·messages·into·Erlangs·distribution·format. |
| 234 | It·is·rather·verbose·but·encoding·and·decoding·is·blinding·fast.·N.B.·that | 234 | It·is·rather·verbose·but·encoding·and·decoding·is·blinding·fast.·N.B.·that |
| 235 | this·format·is·not·included·in·the·Megaco·standard.</li></ul><p><a·href=""·id="erl_dist_config"></a></p><h2·id="configuration-of-erlang-distribution-encoding-module"·class="section-heading"> | 235 | this·format·is·not·included·in·the·Megaco·standard.</li></ul><p><a·href=""·id="erl_dist_config"></a></p><h2·id="configuration-of-erlang-distribution-encoding-module"·class="section-heading"> |
| 236 | ··<a·href="#configuration-of-erlang-distribution-encoding-module"·class="hover-link"> | 236 | ··<a·href="#configuration-of-erlang-distribution-encoding-module"·class="hover-link"> |
| Offset 353, 15 lines modified | Offset 353, 15 lines modified | ||
| 353 | ······<p·class="built-using"> | 353 | ······<p·class="built-using"> |
| 354 | ········Built·using | 354 | ········Built·using |
| 355 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 355 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 356 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 356 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 357 | ······</p> | 357 | ······</p> |
| 358 | <p>Copyright·©·1996-202 | 358 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 359 | ····</footer> | 359 | ····</footer> |
| 360 | ··</div> | 360 | ··</div> |
| 361 | </main> | 361 | </main> |
| 362 | </div> | 362 | </div> |
| 363 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 363 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 364 | ··<script> | 364 | ··<script> |
| 365 | ··let·initialized·=·false; | 365 | ··let·initialized·=·false; |
| Offset 1340, 15 lines modified | Offset 1340, 15 lines modified | ||
| 1340 | ······<p·class="built-using"> | 1340 | ······<p·class="built-using"> |
| 1341 | ········Built·using | 1341 | ········Built·using |
| 1342 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1342 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1343 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1343 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1344 | ······</p> | 1344 | ······</p> |
| 1345 | <p>Copyright·©·1996-202 | 1345 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1346 | ····</footer> | 1346 | ····</footer> |
| 1347 | ··</div> | 1347 | ··</div> |
| 1348 | </main> | 1348 | </main> |
| 1349 | </div> | 1349 | </div> |
| 1350 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1350 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1351 | ··<script> | 1351 | ··<script> |
| 1352 | ··let·initialized·=·false; | 1352 | ··let·initialized·=·false; |
| Offset 155, 18 lines modified | Offset 155, 18 lines modified | ||
| 155 | synchronously·for·a·reply.</p><p>After·this·initial·service·change·message·the·connection·between·the·MG·and·MGC | 155 | synchronously·for·a·reply.</p><p>After·this·initial·service·change·message·the·connection·between·the·MG·and·MGC |
| 156 | is·fully·established·and·supervised.</p><p>Assuming·that·the·MGC·is·started·on·the·local·host,·four·different·MG's,·using | 156 | is·fully·established·and·supervised.</p><p>Assuming·that·the·MGC·is·started·on·the·local·host,·four·different·MG's,·using |
| 157 | text·over·TCP/IP,·binary·over·TCP/IP,·text·over·UDP/IP·and·binary·over·UDP/IP | 157 | text·over·TCP/IP,·binary·over·TCP/IP,·text·over·UDP/IP·and·binary·over·UDP/IP |
| 158 | may·be·started·on·the·same·Erlang·node·with:</p><pre><code·class="text">······cd·megaco/examples/simple | 158 | may·be·started·on·the·same·Erlang·node·with:</p><pre><code·class="text">······cd·megaco/examples/simple |
| 159 | ······erl·-pa·../../../megaco/ebin·-s·megaco_filter·-s·megaco | 159 | ······erl·-pa·../../../megaco/ebin·-s·megaco_filter·-s·megaco |
| 160 | ······megaco_simple_mg:start().</code></pre><p>or·simply·'gmake·mg'.</p><p>If·you·"only"·want·to·start·a·single·MG·which·tries·to·connect·an·MG·on·a·host | 160 | ······megaco_simple_mg:start().</code></pre><p>or·simply·'gmake·mg'.</p><p>If·you·"only"·want·to·start·a·single·MG·which·tries·to·connect·an·MG·on·a·host |
| 161 | named·"baidarka",·you·may·use·one·of·these·functions·(instead·of·the | 161 | named·"baidarka",·you·may·use·one·of·these·functions·(instead·of·the |
| 162 | megaco_simple_mg:start/0·above):</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">······</span><span·class="nc">megaco_simple_mg</span><span·class="p">:</span><span·class="nf">start_tcp_text</span><span·class="p"·data-group-id="5 | 162 | megaco_simple_mg:start/0·above):</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">······</span><span·class="nc">megaco_simple_mg</span><span·class="p">:</span><span·class="nf">start_tcp_text</span><span·class="p"·data-group-id="5011361943-1">(</span><span·class="s">"baidarka"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="5011361943-2">[</span><span·class="p"·data-group-id="5011361943-2">]</span><span·class="p"·data-group-id="5011361[·...·truncated·by·diffoscope;·len:·3,·SHA:·e133553ea138da0438f229cc2273c76d2e44c23a1dcc98a8e7a0d1780a3a65cc·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 163 | ······</span><span·class="nc">megaco_simple_mg</span><span·class="p">:</span><span·class="nf">start_tcp_binary</span><span·class="p"·data-group-id="5409303542-3">(</span><span·class="s">"baidarka"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="5409303542-4">[</span><span·class="p"·data-group-id="5409303542-4">]</span><span·class="p"·data-group-id="5409303542-3">)</span><span·class="p">.</span><span·class="w"> | ||
| 164 | ······</span><span·class="nc">megaco_simple_mg</span><span·class="p">:</span><span·class="nf">start_ | 163 | ······</span><span·class="nc">megaco_simple_mg</span><span·class="p">:</span><span·class="nf">start_tcp_binary</span><span·class="p"·data-group-id="5011361943-3">(</span><span·class="s">"baidarka"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="5011361943-4">[</span><span·class="p"·data-group-id="5011361943-[·...·truncated·by·diffoscope;·len:·54,·SHA:·cdb1fa40566bfbc7eb16fd8cb0fe6400a3ec356408a9be1660bded6217c4b57e·...·]">)</span><span·class="p">.</span><span·class="w"> |
| 164 | ······</span><span·class="nc">megaco_simple_mg</span><span·class="p">:</span><span·class="nf">start_udp_text</span><span·class="p"·data-group-id="5011361943-5">(</span><span·class="s">"baidarka"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="5011361943-6">[</span><span·class="p"·data-group-id="5011361943-6">]</span><span·class="p"·data-group-id="5011361943-5">)</span><span·class="p">.</span><span·class="w"> | ||
| 165 | ······</span><span·class="nc">megaco_simple_mg</span><span·class="p">:</span><span·class="nf">start_udp_binary</span><span·class="p"·data-group-id="5 | 165 | ······</span><span·class="nc">megaco_simple_mg</span><span·class="p">:</span><span·class="nf">start_udp_binary</span><span·class="p"·data-group-id="5011361943-7">(</span><span·class="s">"baidarka"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="5011361943-8">[</span><span·class="p"·data-group-id="5011361943-8">]</span><span·class="p"·data-group-id="5011361[·...·truncated·by·diffoscope;·len:·3,·SHA:·e133553ea138da0438f229cc2273c76d2e44c23a1dcc98a8e7a0d1780a3a65cc·...·]-7">)</span><span·class="p">.</span></code></pre><p>The·-s·megaco_filter·option·to·erl·implies,·the·event·tracing·mechanism·to·be |
| 166 | enabled·and·an·interactive·sequence·chart·tool·to·be·started.·This·may·be·quite | 166 | enabled·and·an·interactive·sequence·chart·tool·to·be·started.·This·may·be·quite |
| 167 | useful·in·order·to·visualize·how·your·MG·interacts·with·the·Megaco/H.248 | 167 | useful·in·order·to·visualize·how·your·MG·interacts·with·the·Megaco/H.248 |
| 168 | protocol·stack.</p><p>The·event·traces·may·alternatively·be·directed·to·a·file·for·later·analyze.·By | 168 | protocol·stack.</p><p>The·event·traces·may·alternatively·be·directed·to·a·file·for·later·analyze.·By |
| 169 | default·the·event·tracing·is·disabled,·but·it·may·dynamically·be·enabled·without | 169 | default·the·event·tracing·is·disabled,·but·it·may·dynamically·be·enabled·without |
| 170 | any·need·for·re-compilation·of·the·code.</p> | 170 | any·need·for·re-compilation·of·the·code.</p> |
| 171 | </div> | 171 | </div> |
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| 216 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 216 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 217 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 217 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 218 | ······</p> | 218 | ······</p> |
| 219 | <p>Copyright·©·1996-202 | 219 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 220 | ····</footer> | 220 | ····</footer> |
| 221 | ··</div> | 221 | ··</div> |
| 222 | </main> | 222 | </main> |
| 223 | </div> | 223 | </div> |
| 224 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 224 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 225 | ··<script> | 225 | ··<script> |
| 226 | ··let·initialized·=·false; | 226 | ··let·initialized·=·false; |
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| 439 | ······</p> | 439 | ······</p> |
| 440 | <p>Copyright·©·1996-202 | 440 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 441 | ····</footer> | 441 | ····</footer> |
| 442 | ··</div> | 442 | ··</div> |
| 443 | </main> | 443 | </main> |
| 444 | </div> | 444 | </div> |
| 445 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 445 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 214 | ······</p> | 214 | ······</p> |
| 215 | <p>Copyright·©·1996-202 | 215 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 216 | ····</footer> | 216 | ····</footer> |
| 217 | ··</div> | 217 | ··</div> |
| 218 | </main> | 218 | </main> |
| 219 | </div> | 219 | </div> |
| 220 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 220 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 206 | ······</p> | 206 | ······</p> |
| 207 | <p>Copyright·©·1996-202 | 207 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 208 | ····</footer> | 208 | ····</footer> |
| 209 | ··</div> | 209 | ··</div> |
| 210 | </main> | 210 | </main> |
| 211 | </div> | 211 | </div> |
| 212 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 212 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 213 | ··<script> | 213 | ··<script> |
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| 257 | ······</p> | 257 | ······</p> |
| 258 | <p>Copyright·©·1996-202 | 258 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 259 | ····</footer> | 259 | ····</footer> |
| 260 | ··</div> | 260 | ··</div> |
| 261 | </main> | 261 | </main> |
| 262 | </div> | 262 | </div> |
| 263 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 263 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 264 | ··<script> | 264 | ··<script> |
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| 335 | ······</p> | 335 | ······</p> |
| 336 | <p>Copyright·©·1996-202 | 336 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 337 | ····</footer> | 337 | ····</footer> |
| 338 | ··</div> | 338 | ··</div> |
| 339 | </main> | 339 | </main> |
| 340 | </div> | 340 | </div> |
| 341 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 341 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 342 | ··<script> | 342 | ··<script> |
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| 1188 | ······</p> | 1188 | ······</p> |
| 1189 | <p>Copyright·©·1996-202 | 1189 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1190 | ····</footer> | 1190 | ····</footer> |
| 1191 | ··</div> | 1191 | ··</div> |
| 1192 | </main> | 1192 | </main> |
| 1193 | </div> | 1193 | </div> |
| 1194 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1194 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 829 | ······</p> | 829 | ······</p> |
| 830 | <p>Copyright·©·1996-202 | 830 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 831 | ····</footer> | 831 | ····</footer> |
| 832 | ··</div> | 832 | ··</div> |
| 833 | </main> | 833 | </main> |
| 834 | </div> | 834 | </div> |
| 835 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 835 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 327 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 327 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 328 | ······</p> | 328 | ······</p> |
| 329 | <p>Copyright·©·1996-202 | 329 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 330 | ····</footer> | 330 | ····</footer> |
| 331 | ··</div> | 331 | ··</div> |
| 332 | </main> | 332 | </main> |
| 333 | </div> | 333 | </div> |
| 334 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 334 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 189 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 189 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 190 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 190 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 191 | ······</p> | 191 | ······</p> |
| 192 | <p>Copyright·©·1996-202 | 192 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 193 | ····</footer> | 193 | ····</footer> |
| 194 | ··</div> | 194 | ··</div> |
| 195 | </main> | 195 | </main> |
| 196 | </div> | 196 | </div> |
| 197 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 197 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 198 | ··<script> | 198 | ··<script> |
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| 863 | ······</p> | 863 | ······</p> |
| 864 | <p>Copyright·©·1996-202 | 864 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 865 | ····</footer> | 865 | ····</footer> |
| 866 | ··</div> | 866 | ··</div> |
| 867 | </main> | 867 | </main> |
| 868 | </div> | 868 | </div> |
| 869 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 869 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 870 | ··<script> | 870 | ··<script> |
| 871 | ··let·initialized·=·false; | 871 | ··let·initialized·=·false; |
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| 127 | ··</h1> | 127 | ··</h1> |
| 128 | ····<section·id="moduledoc"> | 128 | ····<section·id="moduledoc"> |
| 129 | <p>Callback·module·for·users·of·the·Megaco·application</p><p>This·module·defines·the·callback·behaviour·of·Megaco·users.·A·megaco_user | 129 | <p>Callback·module·for·users·of·the·Megaco·application</p><p>This·module·defines·the·callback·behaviour·of·Megaco·users.·A·megaco_user |
| 130 | compliant·callback·module·must·export·the·following·functions:</p><ul><li><a·href="#c:handle_connect/3">handle_connect/2,3</a></li><li><a·href="#c:handle_disconnect/3">handle_disconnect/3</a></li><li><a·href="#c:handle_syntax_error/4">handle_syntax_error/3,4</a></li><li><a·href="#c:handle_message_error/4">handle_message_error/3,4</a></li><li><a·href="#c:handle_trans_request/4">handle_trans_request/3,4</a></li><li><a·href="#c:handle_trans_long_request/4">handle_trans_long_request/3,4</a></li><li><a·href="#c:handle_trans_reply/5">handle_trans_reply/4,5</a></li><li><a·href="#c:handle_trans_ack/5">handle_trans_ack/4,5</a></li><li><a·href="#c:handle_unexpected_trans/4">handle_unexpected_trans/3,4</a></li><li><a·href="#c:handle_trans_request_abort/5">handle_trans_request_abort/4,5</a></li><li><a·href="#c:handle_segment_reply/6">handle_segment_reply/5,6</a></li></ul><p>The·semantics·of·them·and·their·exact·signatures·are·explained·below.</p><p>The·<code·class="inline">user_args</code>·configuration·parameter·which·may·be·used·to·extend·the·argument | 130 | compliant·callback·module·must·export·the·following·functions:</p><ul><li><a·href="#c:handle_connect/3">handle_connect/2,3</a></li><li><a·href="#c:handle_disconnect/3">handle_disconnect/3</a></li><li><a·href="#c:handle_syntax_error/4">handle_syntax_error/3,4</a></li><li><a·href="#c:handle_message_error/4">handle_message_error/3,4</a></li><li><a·href="#c:handle_trans_request/4">handle_trans_request/3,4</a></li><li><a·href="#c:handle_trans_long_request/4">handle_trans_long_request/3,4</a></li><li><a·href="#c:handle_trans_reply/5">handle_trans_reply/4,5</a></li><li><a·href="#c:handle_trans_ack/5">handle_trans_ack/4,5</a></li><li><a·href="#c:handle_unexpected_trans/4">handle_unexpected_trans/3,4</a></li><li><a·href="#c:handle_trans_request_abort/5">handle_trans_request_abort/4,5</a></li><li><a·href="#c:handle_segment_reply/6">handle_segment_reply/5,6</a></li></ul><p>The·semantics·of·them·and·their·exact·signatures·are·explained·below.</p><p>The·<code·class="inline">user_args</code>·configuration·parameter·which·may·be·used·to·extend·the·argument |
| 131 | list·of·the·callback·functions.·For·example,·the·handle_connect·function·takes | 131 | list·of·the·callback·functions.·For·example,·the·handle_connect·function·takes |
| 132 | by·default·two·arguments:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">handle_connect</span><span·class="p"·data-group-id=" | 132 | by·default·two·arguments:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">handle_connect</span><span·class="p"·data-group-id="7026282748-1">(</span><span·class="n">Handle</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Version</span><span·class="p"·data-group-id="7026282748-1">)</span></code></pre><p>but·if·the·<code·class="inline">user_args</code>·parameter·is·set·to·a·longer·list,·such·as |
| 133 | <code·class="inline">[SomePid,SomeTableRef]</code>,·the·callback·function·is·expected·to·have·these·(in | 133 | <code·class="inline">[SomePid,SomeTableRef]</code>,·the·callback·function·is·expected·to·have·these·(in |
| 134 | this·case·two)·extra·arguments·last·in·the·argument·list:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">handle_connect</span><span·class="p"·data-group-id=" | 134 | this·case·two)·extra·arguments·last·in·the·argument·list:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">handle_connect</span><span·class="p"·data-group-id="4744884978-1">(</span><span·class="n">Handle</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Version</span><span·class="p">,</span><span·class="w">·</span><span·class="n">SomePid</span><span·class="p">,</span><span·class="w">·</span><[·...·truncated·by·diffoscope;·len:·75,·SHA:·ef004a0fc131140daced7879c5d1ce062f4bfdf564f3eaf4c811b28038a98f2e·...·]-1">)</span></code></pre><p><a·href=""·id="extra_argument"></a></p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>Must·of·the·functions·below·has·an·optional·<code·class="inline">Extra</code>·argument·(e.g. |
| 135 | <a·href="#c:handle_unexpected_trans/4">handle_unexpected_trans/4</a>).·The·functions | 135 | <a·href="#c:handle_unexpected_trans/4">handle_unexpected_trans/4</a>).·The·functions |
| 136 | which·takes·this·argument·will·be·called·if·and·only·if·one·of·the·functions | 136 | which·takes·this·argument·will·be·called·if·and·only·if·one·of·the·functions |
| 137 | <a·href="megaco.html#receive_message/5"><code·class="inline">receive_message/5</code></a>·or | 137 | <a·href="megaco.html#receive_message/5"><code·class="inline">receive_message/5</code></a>·or |
| 138 | <a·href="megaco.html#process_received_message/5"><code·class="inline">process_received_message/5</code></a>·was·called | 138 | <a·href="megaco.html#process_received_message/5"><code·class="inline">process_received_message/5</code></a>·was·called |
| 139 | with·the·<code·class="inline">Extra</code>·argument·different·than·<code·class="inline">ignore_extra</code>.</p></section><h2·id="module-data-types"·class="section-heading"> | 139 | with·the·<code·class="inline">Extra</code>·argument·different·than·<code·class="inline">ignore_extra</code>.</p></section><h2·id="module-data-types"·class="section-heading"> |
| 140 | ··<a·href="#module-data-types"·class="hover-link"> | 140 | ··<a·href="#module-data-types"·class="hover-link"> |
| 141 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 141 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 142 | ··</a> | 142 | ··</a> |
| 143 | ··<span·class="text">DATA·TYPES</span> | 143 | ··<span·class="text">DATA·TYPES</span> |
| 144 | </h2> | 144 | </h2> |
| 145 | <pre><code·class="makeup·erlang"·translate="no"><span·class="nf">action_request</span><span·class="p"·data-group-id=" | 145 | <pre><code·class="makeup·erlang"·translate="no"><span·class="nf">action_request</span><span·class="p"·data-group-id="5958218444-1">(</span><span·class="p"·data-group-id="5958218444-1">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">'ActionRequest'</span><span·class="p"·data-group-id="5958218[·...·truncated·by·diffoscope;·len:·56,·SHA:·136b49b8c27d69dc5abb7f603f465cde0f9e1a303c81ca1f4247bc3b11ce4152·...·]-2">}</span><span·class="w"> |
| 146 | </span><span·class="nf">action_reply</span><span·class="p"·data-group-id=" | 146 | </span><span·class="nf">action_reply</span><span·class="p"·data-group-id="5958218444-3">(</span><span·class="p"·data-group-id="5958218444-3">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">'ActionReply'</span><span·class="p"·data-group-id="595821844[·...·truncated·by·diffoscope;·len:·54,·SHA:·2be165a09eff2b8ed15fa7c4d29a9492929a83395fff53a9f827bab06204aa28·...·]-4">}</span><span·class="w"> |
| 147 | </span><span·class="nf">error_desc</span><span·class="p"·data-group-id="2931472818-5">(</span><span·class="p"·data-group-id="2931472818-5">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">'ErrorDescriptor'</span><span·class="p"·data-group-id="2931472818-6">{</span><span·class="p"·data-group-id="2931472818-6">}</span><span·class="w"> | ||
| 148 | </span><span·class="nf"> | 147 | </span><span·class="nf">error_desc</span><span·class="p"·data-group-id="5958218444-5">(</span><span·class="p"·data-group-id="5958218444-5">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">'ErrorDescriptor[·...·truncated·by·diffoscope;·len:·134,·SHA:·e78d81d6587e8e7df52025f4d8bf3179ccb466f4367bdf6bf0d9558b914bc146·...·] |
| 148 | </span><span·class="nf">segment_no</span><span·class="p"·data-group-id="5958218444-7">(</span><span·class="p"·data-group-id="5958218444-7">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="5958218444-8">(</span><span·class="p"·data-group-id="5958218444-8">)</span></code></pre><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">conn_handle</span><span·class="p"·data-group-id="3931970471-1">(</span><span·class="p"·data-group-id="3931970471-1">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">megaco_conn_handle</span><span·class="p"·data-group-id="3931970471-2">{</span><span·class="p"·data-group-id="3931970471-2">}</span></code></pre><p>The·record·initially·returned·by·<code·class="inline">megaco:connect/4,5</code>.·It·identifies·a·"virtual" | ||
| 149 | connection·and·may·be·reused·after·a·reconnect·(disconnect·+·connect).</p><pre><code·class="text">protocol_version()·=·integer()</code></pre><p>Is·the·actual·protocol·version.·In·most·cases·the·protocol·version·is·retrieved | 149 | connection·and·may·be·reused·after·a·reconnect·(disconnect·+·connect).</p><pre><code·class="text">protocol_version()·=·integer()</code></pre><p>Is·the·actual·protocol·version.·In·most·cases·the·protocol·version·is·retrieved |
| 150 | from·the·processed·message,·but·there·are·exceptions:</p><ul><li>When·<code·class="inline">handle_connect/2,3</code>·is·triggered·by·an·explicit·call·to | 150 | from·the·processed·message,·but·there·are·exceptions:</p><ul><li>When·<code·class="inline">handle_connect/2,3</code>·is·triggered·by·an·explicit·call·to |
| 151 | <code·class="inline">megaco:connect/4,5</code>.</li><li><a·href="#c:handle_disconnect/3"><code·class="inline">handle_disconnect/3</code></a></li><li><a·href="#c:handle_syntax_error/3"><code·class="inline">handle_syntax_error/3</code></a></li></ul><p>In·these·cases,·the·ProtocolVersion·default·version·is·obtained·from·the·static | 151 | <code·class="inline">megaco:connect/4,5</code>.</li><li><a·href="#c:handle_disconnect/3"><code·class="inline">handle_disconnect/3</code></a></li><li><a·href="#c:handle_syntax_error/3"><code·class="inline">handle_syntax_error/3</code></a></li></ul><p>In·these·cases,·the·ProtocolVersion·default·version·is·obtained·from·the·static |
| 152 | connection·configuration:</p><ul><li><code·class="inline">megaco:conn_info(ConnHandle,·protocol_version)</code>.</li></ul> | 152 | connection·configuration:</p><ul><li><code·class="inline">megaco:conn_info(ConnHandle,·protocol_version)</code>.</li></ul> |
| 153 | ····</section> | 153 | ····</section> |
| 154 | </div> | 154 | </div> |
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| 1503 | ······<p·class="built-using"> | 1503 | ······<p·class="built-using"> |
| 1504 | ········Built·using | 1504 | ········Built·using |
| 1505 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1505 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1506 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1506 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1507 | ······</p> | 1507 | ······</p> |
| 1508 | <p>Copyright·©·1996-202 | 1508 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1509 | ····</footer> | 1509 | ····</footer> |
| 1510 | ··</div> | 1510 | ··</div> |
| 1511 | </main> | 1511 | </main> |
| 1512 | </div> | 1512 | </div> |
| 1513 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1513 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1514 | ··<script> | 1514 | ··<script> |
| 1515 | ··let·initialized·=·false; | 1515 | ··let·initialized·=·false; |
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| 1034 | ······<p·class="built-using"> | 1034 | ······<p·class="built-using"> |
| 1035 | ········Built·using | 1035 | ········Built·using |
| 1036 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1036 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1037 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1037 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1038 | ······</p> | 1038 | ······</p> |
| 1039 | <p>Copyright·©·1996-202 | 1039 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1040 | ····</footer> | 1040 | ····</footer> |
| 1041 | ··</div> | 1041 | ··</div> |
| 1042 | </main> | 1042 | </main> |
| 1043 | </div> | 1043 | </div> |
| 1044 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1044 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1045 | ··<script> | 1045 | ··<script> |
| 1046 | ··let·initialized·=·false; | 1046 | ··let·initialized·=·false; |
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| 118 | <div·id="search"> | 118 | <div·id="search"> |
| 119 | ··<h1> | 119 | ··<h1> |
| 120 | ····<span></span> | 120 | ····<span></span> |
| 121 | ··</h1> | 121 | ··</h1> |
| 122 | ··<div·class="loading"><div></div><div></div><div></div><div></div></div> | 122 | ··<div·class="loading"><div></div><div></div><div></div><div></div></div> |
| 123 | </div> | 123 | </div> |
| 124 | <script·src="dist/search_data- | 124 | <script·src="dist/search_data-85C16899.js"></script> |
| 125 | ····<footer·class="footer"> | 125 | ····<footer·class="footer"> |
| 126 | ······<p> | 126 | ······<p> |
| 127 | ········<span·class="line"> | 127 | ········<span·class="line"> |
| 128 | ··········<button·class="a-main·footer-button·display-quick-switch"·title="Search·HexDocs·packages"> | 128 | ··········<button·class="a-main·footer-button·display-quick-switch"·title="Search·HexDocs·packages"> |
| 129 | ············Search·HexDocs | 129 | ············Search·HexDocs |
| 130 | ··········</button> | 130 | ··········</button> |
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| 141 | ······<p·class="built-using"> | 141 | ······<p·class="built-using"> |
| 142 | ········Built·using | 142 | ········Built·using |
| 143 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 143 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 144 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 144 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 145 | ······</p> | 145 | ······</p> |
| 146 | <p>Copyright·©·1996-202 | 146 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 147 | ····</footer> | 147 | ····</footer> |
| 148 | ··</div> | 148 | ··</div> |
| 149 | </main> | 149 | </main> |
| 150 | </div> | 150 | </div> |
| 151 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 151 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 152 | ··<script> | 152 | ··<script> |
| 153 | ··let·initialized·=·false; | 153 | ··let·initialized·=·false; |
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| 143 | ······<p·class="built-using"> | 143 | ······<p·class="built-using"> |
| 144 | ········Built·using | 144 | ········Built·using |
| 145 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 145 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 146 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 146 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 147 | ······</p> | 147 | ······</p> |
| 148 | <p>Copyright·©·1996-202 | 148 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 149 | ····</footer> | 149 | ····</footer> |
| 150 | ··</div> | 150 | ··</div> |
| 151 | </main> | 151 | </main> |
| 152 | </div> | 152 | </div> |
| 153 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 153 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 154 | ··<script> | 154 | ··<script> |
| 155 | ··let·initialized·=·false; | 155 | ··let·initialized·=·false; |
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| 199 | ······<p·class="built-using"> | 199 | ······<p·class="built-using"> |
| 200 | ········Built·using | 200 | ········Built·using |
| 201 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 201 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 202 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 202 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 203 | ······</p> | 203 | ······</p> |
| 204 | <p>Copyright·©·1996-202 | 204 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 205 | ····</footer> | 205 | ····</footer> |
| 206 | ··</div> | 206 | ··</div> |
| 207 | </main> | 207 | </main> |
| 208 | </div> | 208 | </div> |
| 209 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 209 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 210 | ··<script> | 210 | ··<script> |
| 211 | ··let·initialized·=·false; | 211 | ··let·initialized·=·false; |
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| 1 | Zip·archive·data,·made·by·v6.1·UNIX,·extract·using·at·least·v1.0,·last·modified·Ju | 1 | Zip·archive·data,·made·by·v6.1·UNIX,·extract·using·at·least·v1.0,·last·modified·Jul·05·2026·23:53:54,·uncompressed·size·20,·method=store |
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| 162 | <code·class="inline">true</code>,·a·majority·of·the·table·replicas·must·be·available·for·an·update·to | 162 | <code·class="inline">true</code>,·a·majority·of·the·table·replicas·must·be·available·for·an·update·to |
| 163 | succeed.·Majority·checking·can·be·enabled·on·tables·with·mission-critical | 163 | succeed.·Majority·checking·can·be·enabled·on·tables·with·mission-critical |
| 164 | data,·where·it·is·vital·to·avoid·inconsistencies·because·of·network·splits.</p></li><li><p><code·class="inline">snmp</code>.·Each·(set-based)·Mnesia·table·can·be·automatically·turned·into·a | 164 | data,·where·it·is·vital·to·avoid·inconsistencies·because·of·network·splits.</p></li><li><p><code·class="inline">snmp</code>.·Each·(set-based)·Mnesia·table·can·be·automatically·turned·into·a |
| 165 | Simple·Network·Management·Protocol·(SNMP)·ordered·table·as·well.·This·property | 165 | Simple·Network·Management·Protocol·(SNMP)·ordered·table·as·well.·This·property |
| 166 | specifies·the·types·of·the·SNMP·keys.</p></li><li><p><code·class="inline">attributes</code>.·The·names·of·the·attributes·for·the·records·that·are·inserted·in | 166 | specifies·the·types·of·the·SNMP·keys.</p></li><li><p><code·class="inline">attributes</code>.·The·names·of·the·attributes·for·the·records·that·are·inserted·in |
| 167 | the·table.</p></li></ul><p>For·information·about·the·complete·set·of·table·properties·and·their·details, | 167 | the·table.</p></li></ul><p>For·information·about·the·complete·set·of·table·properties·and·their·details, |
| 168 | see·<a·href="#create_table/2"><code·class="inline">mnesia:create_table/2</code></a>.</p><p>This·Reference·Manual·uses·a·table·of·persons·to·illustrate·various·examples. | 168 | see·<a·href="#create_table/2"><code·class="inline">mnesia:create_table/2</code></a>.</p><p>This·Reference·Manual·uses·a·table·of·persons·to·illustrate·various·examples. |
| 169 | The·following·record·definition·is·assumed:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id=" | 169 | The·following·record·definition·is·assumed:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id="8299413859-1">(</span><span·class="ss">person</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8299413859-2">{</span><span·class="ss">name</span><span·class="p">,</span><span·class="w"> |
| 170 | ·················</span><span·class="ss">age</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">0</span><span·class="p">,</span><span·class="w"> | 170 | ·················</span><span·class="ss">age</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">0</span><span·class="p">,</span><span·class="w"> |
| 171 | ·················</span><span·class="ss">address</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">unknown</span><span·class="p">,</span><span·class="w"> | 171 | ·················</span><span·class="ss">address</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">unknown</span><span·class="p">,</span><span·class="w"> |
| 172 | ·················</span><span·class="ss">salary</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">0</span><span·class="p">,</span><span·class="w"> | 172 | ·················</span><span·class="ss">salary</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">0</span><span·class="p">,</span><span·class="w"> |
| 173 | ·················</span><span·class="ss">children</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 173 | ·················</span><span·class="ss">children</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="8299413859-3">[</span><span·class="p"·data-group-id="8299413859-3">]</span><span·class="p"·data-group-id="8299413859-2">}</span><span·class="p"·data-group-id="8299413859-1">)</span><span·class="p">,</span></code></pre><p>The·first·record·attribute·is·the·primary·key,·or·key·for·short.</p><p>The·function·descriptions·are·sorted·in·alphabetical·order.·It·is·recommended·to |
| 174 | start·to·read·about·<a·href="#create_table/2"><code·class="inline">mnesia:create_table/2</code></a>,·<a·href="#lock/2"><code·class="inline">mnesia:lock/2</code></a>,·and | 174 | start·to·read·about·<a·href="#create_table/2"><code·class="inline">mnesia:create_table/2</code></a>,·<a·href="#lock/2"><code·class="inline">mnesia:lock/2</code></a>,·and |
| 175 | ·<a·href="#activity/4"><code·class="inline">mnesia:activity/4</code></a>·before·you·continue·and·learn·about·the·rest.</p><p>Writing·or·deleting·in·transaction-context·creates·a·local·copy·of·each·modified | 175 | ·<a·href="#activity/4"><code·class="inline">mnesia:activity/4</code></a>·before·you·continue·and·learn·about·the·rest.</p><p>Writing·or·deleting·in·transaction-context·creates·a·local·copy·of·each·modified |
| 176 | record·during·the·transaction.·During·iteration,·that·is,·<a·href="#foldl/4"><code·class="inline">mnesia:foldl/4</code></a>, | 176 | record·during·the·transaction.·During·iteration,·that·is,·<a·href="#foldl/4"><code·class="inline">mnesia:foldl/4</code></a>, |
| 177 | <a·href="#foldr/4"><code·class="inline">mnesia:foldr/4</code></a>,·<a·href="#next/2"><code·class="inline">mnesia:next/2</code></a>,·<a·href="#prev/2"><code·class="inline">mnesia:prev/2</code></a>,·and·<a·href="#snmp_get_next_index/2"><code·class="inline">mnesia:snmp_get_next_index/2</code></a>,·Mnesia | 177 | <a·href="#foldr/4"><code·class="inline">mnesia:foldr/4</code></a>,·<a·href="#next/2"><code·class="inline">mnesia:next/2</code></a>,·<a·href="#prev/2"><code·class="inline">mnesia:prev/2</code></a>,·and·<a·href="#snmp_get_next_index/2"><code·class="inline">mnesia:snmp_get_next_index/2</code></a>,·Mnesia |
| 178 | compensates·for·every·written·or·deleted·record,·which·can·reduce·the | 178 | compensates·for·every·written·or·deleted·record,·which·can·reduce·the |
| 179 | performance.</p><p>If·possible,·avoid·writing·or·deleting·records·in·the·same·transaction·before | 179 | performance.</p><p>If·possible,·avoid·writing·or·deleting·records·in·the·same·transaction·before |
| 180 | iterating·over·the·table.</p><h2·id="module-configuration-parameters"·class="section-heading"> | 180 | iterating·over·the·table.</p><h2·id="module-configuration-parameters"·class="section-heading"> |
| Offset 2793, 15 lines modified | Offset 2793, 15 lines modified | ||
| 2793 | ······<div·class="specs"> | 2793 | ······<div·class="specs"> |
| 2794 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·change_table_copy_type(Tab·::·<a·href="#t:table/0">table</a>(),·Node·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:node/0">node</a>(),·To·::·<a·href="#t:storage_type/0">storage_type</a>())·->·<a·href="#t:t_result/1">t_result</a>(ok).</pre> | 2794 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·change_table_copy_type(Tab·::·<a·href="#t:table/0">table</a>(),·Node·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:node/0">node</a>(),·To·::·<a·href="#t:storage_type/0">storage_type</a>())·->·<a·href="#t:t_result/1">t_result</a>(ok).</pre> |
| 2795 | ······</div> | 2795 | ······</div> |
| 2796 | <p>Change·the·storage·type·of·a·table.</p><p>For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">change_table_copy_type</span><span·class="p"·data-group-id=" | 2796 | <p>Change·the·storage·type·of·a·table.</p><p>For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">change_table_copy_type</span><span·class="p"·data-group-id="6731814220-1">(</span><span·class="ss">person</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">node</span><span·class="p"·data-group-id="6731814220-2">(</span><span·class="p"·data-group-id="6731814220-2">)</span><span·class="p">,</spa[·...·truncated·by·diffoscope;·len:·102,·SHA:·b65fc6ef5379023fd282bf8e4f41624273a990f91344d13dde33af8f5cbb3762·...·]-1">)</span></code></pre><p>Transforms·the·<code·class="inline">person</code>·table·from·a·RAM·table·into·a·disc-based·table·at |
| 2797 | <code·class="inline">Node</code>.</p><p>This·function·can·also·be·used·to·change·the·storage·type·of·the·table·named | 2797 | <code·class="inline">Node</code>.</p><p>This·function·can·also·be·used·to·change·the·storage·type·of·the·table·named |
| 2798 | <code·class="inline">schema</code>.·The·schema·table·can·only·have·<code·class="inline">ram_copies</code>·or·<code·class="inline">disc_copies</code>·as·the | 2798 | <code·class="inline">schema</code>.·The·schema·table·can·only·have·<code·class="inline">ram_copies</code>·or·<code·class="inline">disc_copies</code>·as·the |
| 2799 | storage·type.·If·the·storage·type·of·the·schema·is·<code·class="inline">ram_copies</code>,·no·other·table | 2799 | storage·type.·If·the·storage·type·of·the·schema·is·<code·class="inline">ram_copies</code>,·no·other·table |
| 2800 | can·be·disc-resident·on·that·node.</p> | 2800 | can·be·disc-resident·on·that·node.</p> |
| 2801 | ··</section> | 2801 | ··</section> |
| 2802 | </section> | 2802 | </section> |
| 2803 | <section·class="detail"·id="change_table_frag/2"> | 2803 | <section·class="detail"·id="change_table_frag/2"> |
| Offset 3032, 30 lines modified | Offset 3032, 30 lines modified | ||
| 3032 | Therefore·applications·that·use·SNMP·to·manipulate·and·control·the·system·can | 3032 | Therefore·applications·that·use·SNMP·to·manipulate·and·control·the·system·can |
| 3033 | be·designed·easily,·since·Mnesia·provides·a·direct·mapping·between·the·logical | 3033 | be·designed·easily,·since·Mnesia·provides·a·direct·mapping·between·the·logical |
| 3034 | tables·that·make·up·an·SNMP·control·application·and·the·physical·data·that | 3034 | tables·that·make·up·an·SNMP·control·application·and·the·physical·data·that |
| 3035 | makes·up·a·Mnesia·table.</p></li><li><p><code·class="inline">{storage_properties,·[{Backend,·Properties}]</code>·forwards·more·properties·to·the | 3035 | makes·up·a·Mnesia·table.</p></li><li><p><code·class="inline">{storage_properties,·[{Backend,·Properties}]</code>·forwards·more·properties·to·the |
| 3036 | back·end·storage.·<code·class="inline">Backend</code>·can·currently·be·<code·class="inline">ets</code>·or·<code·class="inline">dets</code>.·<code·class="inline">Properties</code>·is | 3036 | back·end·storage.·<code·class="inline">Backend</code>·can·currently·be·<code·class="inline">ets</code>·or·<code·class="inline">dets</code>.·<code·class="inline">Properties</code>·is |
| 3037 | a·list·of·options·sent·to·the·back·end·storage·during·table·creation. | 3037 | a·list·of·options·sent·to·the·back·end·storage·during·table·creation. |
| 3038 | <code·class="inline">Properties</code>·cannot·contain·properties·already·used·by·Mnesia,·such·as·<code·class="inline">type</code> | 3038 | <code·class="inline">Properties</code>·cannot·contain·properties·already·used·by·Mnesia,·such·as·<code·class="inline">type</code> |
| 3039 | or·<code·class="inline">named_table</code>.</p><p>For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">create_table</span><span·class="p"·data-group-id=" | 3039 | or·<code·class="inline">named_table</code>.</p><p>For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">create_table</span><span·class="p"·data-group-id="6957942746-1">(</span><span·class="ss">table</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6957942746-2">[</span><span·class="p"·data-group-id="6957942746-3">{</span><span·class="ss">ram_copies</span><span·class="p">,[·...·truncated·by·diffoscope;·len:·689,·SHA:·41aa9f2a6cc633f6294524dd78057f2dc1f04124f19c18e01642f3f8bd491f57·...·]-6">}</span><span·class="p">,</span><span·class="w"> |
| 3040 | ·······</span><span·class="p"·data-group-id=" | 3040 | ·······</span><span·class="p"·data-group-id="6957942746-8">{</span><span·class="ss">storage_properties</span><span·class="p">,</span><span·class="w"> |
| 3041 | ········</span><span·class="p"·data-group-id=" | 3041 | ········</span><span·class="p"·data-group-id="6957942746-9">[</span><span·class="p"·data-group-id="6957942746-10">{</span><span·class="ss">ets</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6957942746-11">[</span><span·class="ss">compressed</span><span·class="p"·d[·...·truncated·by·diffoscope;·len:·872,·SHA:·e5141e417cd9f495a71dfd7f7150286d12a4ff0a4d373c6ccacafab075c52c5b·...·]-1">)</span></code></pre></li><li><p><code·class="inline">{type,·Type}</code>,·where·<code·class="inline">Type</code>·must·be·either·of·the·atoms·<code·class="inline">set</code>,·<code·class="inline">ordered_set</code>, |
| 3042 | or·<code·class="inline">bag</code>.·Default·is·<code·class="inline">set</code>.·In·a·<code·class="inline">set</code>,·all·records·have·unique·keys.·In·a | 3042 | or·<code·class="inline">bag</code>.·Default·is·<code·class="inline">set</code>.·In·a·<code·class="inline">set</code>,·all·records·have·unique·keys.·In·a |
| 3043 | <code·class="inline">bag</code>,·several·records·can·have·the·same·key,·but·the·record·content·is | 3043 | <code·class="inline">bag</code>,·several·records·can·have·the·same·key,·but·the·record·content·is |
| 3044 | unique.·If·a·non-unique·record·is·stored,·the·old·conflicting·records·are | 3044 | unique.·If·a·non-unique·record·is·stored,·the·old·conflicting·records·are |
| 3045 | overwritten.</p><p>Notice·that·currently·<code·class="inline">ordered_set</code>·is·not·supported·for·<code·class="inline">disc_only_copies</code>.</p></li><li><p><code·class="inline">{local_content,·Bool}</code>,·where·<code·class="inline">Bool</code>·is·<code·class="inline">true</code>·or·<code·class="inline">false</code>.·Default·is | 3045 | overwritten.</p><p>Notice·that·currently·<code·class="inline">ordered_set</code>·is·not·supported·for·<code·class="inline">disc_only_copies</code>.</p></li><li><p><code·class="inline">{local_content,·Bool}</code>,·where·<code·class="inline">Bool</code>·is·<code·class="inline">true</code>·or·<code·class="inline">false</code>.·Default·is |
| 3046 | <code·class="inline">false</code>.</p></li></ul><p>For·example,·the·following·call·creates·the·<code·class="inline">person</code>·table·(defined·earlier)·and | 3046 | <code·class="inline">false</code>.</p></li></ul><p>For·example,·the·following·call·creates·the·<code·class="inline">person</code>·table·(defined·earlier)·and |
| 3047 | replicates·it·on·two·nodes:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">create_table</span><span·class="p"·data-group-id=" | 3047 | replicates·it·on·two·nodes:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">create_table</span><span·class="p"·data-group-id="1705299702-1">(</span><span·class="ss">person</span><span·class="p">,</span><span·class="w"> |
| 3048 | ····</span><span·class="p"·data-group-id="9131156106-2">[</span><span·class="p"·data-group-id="9131156106-3">{</span><span·class="ss">ram_copies</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9131156106-4">[</span><span·class="n">N1</span><span·class="p">,</span><span·class="w">·</span><span·class="n">N2</span><span·class="p"·data-group-id="9131156106-4">]</span><span·class="p"·data-group-id="9131156106-3">}</span><span·class="p">,</span><span·class="w"> | ||
| 3049 | ···· | 3048 | ····</span><span·class="p"·data-group-id="1705299702-2">[</span><span·class="p"·data-group-id="1705299702-3">{</span><span·class="ss">ram_copies</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1705299702-4">[</span><span·cl[·...·truncated·by·diffoscope;·len:·236,·SHA:·92ce58a0adeaa670af92f74c89b3f1dc809c8291affabbeb86513b6f5ea35d78·...·] |
| 3049 | ·····</span><span·class="p"·data-group-id="1705299702-5">{</span><span·class="ss">attributes</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">record_info</span><span·class="p"·data-group-id="1705299702-6">(</span><span·class="ss">fields</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">person</span><span·class="p"·data-group-id="1705299702-6">)</span><span·class="p"·data-group-id="1705299702-5">}</span><span·class="p"·data-group-id="1705299702-2">]</span><span·class="p"·data-group-id="1705299702-1">)</span><span·class="p">.</span></code></pre><p>If·it·is·required·that·Mnesia·must·build·and·maintain·an·extra·index·table·on | ||
| 3050 | attribute·<code·class="inline">address</code>·of·all·the·<code·class="inline">person</code>·records·that·are·inserted·in·the·table, | 3050 | attribute·<code·class="inline">address</code>·of·all·the·<code·class="inline">person</code>·records·that·are·inserted·in·the·table, |
| 3051 | the·following·code·would·be·issued:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">create_table</span><span·class="p"·data-group-id=" | 3051 | the·following·code·would·be·issued:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">create_table</span><span·class="p"·data-group-id="6932759486-1">(</span><span·class="ss">person</span><span·class="p">,</span><span·class="w"> |
| 3052 | ····</span><span·class="p"·data-group-id=" | 3052 | ····</span><span·class="p"·data-group-id="6932759486-2">[</span><span·class="p"·data-group-id="6932759486-3">{</span><span·class="ss">ram_copies</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6932759486-4">[</span><span·class="n">N1</span><span·class="p">,</sp[·...·truncated·by·diffoscope;·len:·146,·SHA:·cd0140fb71f81b0038cb8ff5cfe7a42da1490fa06466498b6194009abe107b51·...·]-3">}</span><span·class="p">,</span><span·class="w"> |
| 3053 | ·····</span><span·class="p"·data-group-id=" | 3053 | ·····</span><span·class="p"·data-group-id="6932759486-5">{</span><span·class="ss">index</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6932759486-6">[</span><span·class="ss">address</span><span·class="p"·data-group-id="6932759486-6">]</span><span·class="p"·data[·...·truncated·by·diffoscope;·len:·21,·SHA:·87250d6dd59d8727895c046f563328a1da1069edb910b6727881de6afaa28d69·...·]-5">}</span><span·class="p">,</span><span·class="w"> |
| 3054 | ·····</span><span·class="p"·data-group-id=" | 3054 | ·····</span><span·class="p"·data-group-id="6932759486-7">{</span><span·class="ss">attributes</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">record_info</span><span·class="p"·data-group-id="6932759486-8">(</span><span·class="ss">fields</span><span·class="p">,</span><span·clas[·...·truncated·by·diffoscope;·len:·244,·SHA:·340840693b91995c05ae42423b307b5767d314f0f3986eb21416ca19bc65e736·...·]-1">)</span><span·class="p">.</span></code></pre><p>The·specification·of·<code·class="inline">index</code>·and·<code·class="inline">attributes</code>·can·be·hard-coded·as |
| 3055 | <code·class="inline">{index,·[2]}</code>·and·<code·class="inline">{attributes,·[name,·age,·address,·salary,·children]}</code>, | 3055 | <code·class="inline">{index,·[2]}</code>·and·<code·class="inline">{attributes,·[name,·age,·address,·salary,·children]}</code>, |
| 3056 | respectively.</p><p><a·href="#create_table/2"><code·class="inline">mnesia:create_table/2</code></a>·writes·records·into·the·table·<code·class="inline">schema</code>.·This·function, | 3056 | respectively.</p><p><a·href="#create_table/2"><code·class="inline">mnesia:create_table/2</code></a>·writes·records·into·the·table·<code·class="inline">schema</code>.·This·function, |
| 3057 | and·all·other·schema·manipulation·functions,·are·implemented·with·the·normal | 3057 | and·all·other·schema·manipulation·functions,·are·implemented·with·the·normal |
| 3058 | transaction·management·system.·This·guarantees·that·schema·updates·are·performed | 3058 | transaction·management·system.·This·guarantees·that·schema·updates·are·performed |
| 3059 | on·all·nodes·in·an·atomic·manner.</p> | 3059 | on·all·nodes·in·an·atomic·manner.</p> |
| 3060 | ··</section> | 3060 | ··</section> |
| 3061 | </section> | 3061 | </section> |
| Offset 5155, 18 lines modified | Offset 5155, 18 lines modified | ||
| 5155 | ······</div> | 5155 | ······</div> |
| 5156 | <p>Select·the·objects·in·<code·class="inline">Tab</code>·against·<code·class="inline">MatchSpec</code>.</p><p>Matches·the·objects·in·table·<code·class="inline">Tab</code>·using·a·<code·class="inline">match_spec</code>·as·described·in·the | 5156 | <p>Select·the·objects·in·<code·class="inline">Tab</code>·against·<code·class="inline">MatchSpec</code>.</p><p>Matches·the·objects·in·table·<code·class="inline">Tab</code>·using·a·<code·class="inline">match_spec</code>·as·described·in·the |
| 5157 | <a·href="../../../../lib/stdlib-7.0/doc/html/ets.html#select/3"><code·class="inline">ets:select/3</code></a>.·Optionally·a·lock·<code·class="inline">read</code>·or·<code·class="inline">write</code>·can·be·given·as·the·third | 5157 | <a·href="../../../../lib/stdlib-7.0/doc/html/ets.html#select/3"><code·class="inline">ets:select/3</code></a>.·Optionally·a·lock·<code·class="inline">read</code>·or·<code·class="inline">write</code>·can·be·given·as·the·third |
| 5158 | argument.·Default·is·<code·class="inline">read</code>.·The·return·value·depends·on·<code·class="inline">MatchSpec</code>.</p><p>Notice·that·for·best·performance,·<code·class="inline">select</code>·is·to·be·used·before·any·modifying | 5158 | argument.·Default·is·<code·class="inline">read</code>.·The·return·value·depends·on·<code·class="inline">MatchSpec</code>.</p><p>Notice·that·for·best·performance,·<code·class="inline">select</code>·is·to·be·used·before·any·modifying |
| 5159 | operations·are·done·on·that·table·in·the·same·transaction.·That·is,·do·not·use | 5159 | operations·are·done·on·that·table·in·the·same·transaction.·That·is,·do·not·use |
| 5160 | <code·class="inline">write</code>·or·<code·class="inline">delete</code>·before·a·<code·class="inline">select</code>.</p><p>In·its·simplest·forms,·the·<code·class="inline">match_spec</code>·look·as·follows:</p><ul><li><code·class="inline">MatchSpec·=·[MatchFunction]</code></li><li><code·class="inline">MatchFunction·=·{MatchHead,·[Guard],·[Result]}</code></li><li><p><code·class="inline">MatchHead·=·tuple()·|·record()</code></p></li><li><code·class="inline">Guard·=·{"Guardtest·name",·...}</code></li><li><code·class="inline">Result·=·"Term·construct"</code></li></ul><p>For·a·complete·description·of·<code·class="inline">select</code>,·see·the·<a·href="../../../../erts-16.0/doc/html/index.html">ERTS</a> | 5160 | <code·class="inline">write</code>·or·<code·class="inline">delete</code>·before·a·<code·class="inline">select</code>.</p><p>In·its·simplest·forms,·the·<code·class="inline">match_spec</code>·look·as·follows:</p><ul><li><code·class="inline">MatchSpec·=·[MatchFunction]</code></li><li><code·class="inline">MatchFunction·=·{MatchHead,·[Guard],·[Result]}</code></li><li><p><code·class="inline">MatchHead·=·tuple()·|·record()</code></p></li><li><code·class="inline">Guard·=·{"Guardtest·name",·...}</code></li><li><code·class="inline">Result·=·"Term·construct"</code></li></ul><p>For·a·complete·description·of·<code·class="inline">select</code>,·see·the·<a·href="../../../../erts-16.0/doc/html/index.html">ERTS</a> |
| 5161 | User's·Guide·and·the·<a·href="../../../../lib/stdlib-7.0/doc/html/ets.html"><code·class="inline">ets</code></a>·manual·page·in·STDLIB.</p><p>For·example,·to·find·the·names·of·all·male·persons·older·than·30·in·table·<code·class="inline">Tab</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">MatchHead</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">person</span><span·class="p"·data-group-id=" | 5161 | User's·Guide·and·the·<a·href="../../../../lib/stdlib-7.0/doc/html/ets.html"><code·class="inline">ets</code></a>·manual·page·in·STDLIB.</p><p>For·example,·to·find·the·names·of·all·male·persons·older·than·30·in·table·<code·class="inline">Tab</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">MatchHead</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">person</span><span·class="p"·data-group-id="9548552918-1">{</span><span·class="ss">name</span><span·class="o">=</span><span·class="ss">'$1'</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">sex</span><span·class="o">=</span><span·class="ss">male</span><span·class="p">,</[·...·truncated·by·diffoscope;·len:·288,·SHA:·9d76b24de54215f48db6c3f883f8f6b5c2b092f088889d0688b7462fec40af5c·...·]-1">}</span><span·class="p">,</span><span·class="w"> |
| 5162 | </span><span·class="n">Guard</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 5162 | </span><span·class="n">Guard</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="9548552918-2">{</span><span·class="ss">'>'</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">'$2'</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">30</span><span·class="p"·data-group-id="9548552[·...·truncated·by·diffoscope;·len:·3,·SHA:·4779bc407343d916c5a4f6a996174046419bdd87ce6c609054dc8788b3dfc233·...·]-2">}</span><span·class="p">,</span><span·class="w"> |
| 5163 | </span><span·class="n">Result</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">'$1'</span><span·class="p">,</span><span·class="w"> | 5163 | </span><span·class="n">Result</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">'$1'</span><span·class="p">,</span><span·class="w"> |
| 5164 | </span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">select</span><span·class="p"·data-group-id=" | 5164 | </span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">select</span><span·class="p"·data-group-id="9548552918-3">(</span><span·class="n">Tab</span><span·class="p">,</span><span·class="p"·data-group-id="9548552918-4">[</span><span·class="p"·data-group-id="9548552918-5">{</span><span·class="n">MatchHead</span><span·class="p">,</span><span·class="w">·</spa[·...·truncated·by·diffoscope;·len:·466,·SHA:·84086c33c24342defc815dbdcc1b8838deed3ed5dd4d5b8dfe1252c972a23e64·...·]-3">)</span><span·class="p">,</span></code></pre> |
| 5165 | ··</section> | 5165 | ··</section> |
| 5166 | </section> | 5166 | </section> |
| 5167 | <section·class="detail"·id="select/4"> | 5167 | <section·class="detail"·id="select/4"> |
| 5168 | ··<div·class="detail-header"> | 5168 | ··<div·class="detail-header"> |
| 5169 | ····<a·href="#select/4"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 5169 | ····<a·href="#select/4"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 5170 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 5170 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 5435, 17 lines modified | Offset 5435, 17 lines modified | ||
| 5435 | information·needed·is·information·about·the·key·types·in·the·table.·Multiple | 5435 | information·needed·is·information·about·the·key·types·in·the·table.·Multiple |
| 5436 | keys·cannot·be·handled·in·Mnesia,·but·many·SNMP·tables·have·multiple·keys. | 5436 | keys·cannot·be·handled·in·Mnesia,·but·many·SNMP·tables·have·multiple·keys. |
| 5437 | Therefore,·the·following·convention·is·used:·if·a·table·has·multiple·keys,·these | 5437 | Therefore,·the·following·convention·is·used:·if·a·table·has·multiple·keys,·these |
| 5438 | must·always·be·stored·as·a·tuple·of·the·keys.·Information·about·the·key·types·is | 5438 | must·always·be·stored·as·a·tuple·of·the·keys.·Information·about·the·key·types·is |
| 5439 | specified·as·a·tuple·of·atoms·describing·the·types.·The·only·significant·type·is | 5439 | specified·as·a·tuple·of·atoms·describing·the·types.·The·only·significant·type·is |
| 5440 | <code·class="inline">fix_string</code>.·This·means·that·a·string·has·a·fixed·size.</p><p>For·example,·the·following·causes·table·<code·class="inline">person</code>·to·be·ordered·as·an·SNMP·table:</p><pre><code·class="text">mnesia:snmp_open_table(person,·[{key,·string}])</code></pre><p>Consider·the·following·schema·for·a·table·of·company·employees.·Each·employee·is | 5440 | <code·class="inline">fix_string</code>.·This·means·that·a·string·has·a·fixed·size.</p><p>For·example,·the·following·causes·table·<code·class="inline">person</code>·to·be·ordered·as·an·SNMP·table:</p><pre><code·class="text">mnesia:snmp_open_table(person,·[{key,·string}])</code></pre><p>Consider·the·following·schema·for·a·table·of·company·employees.·Each·employee·is |
| 5441 | identified·by·department·number·and·name.·The·other·table·column·stores·the | 5441 | identified·by·department·number·and·name.·The·other·table·column·stores·the |
| 5442 | telephone·number:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">create_table</span><span·class="p"·data-group-id=" | 5442 | telephone·number:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">create_table</span><span·class="p"·data-group-id="0839296109-1">(</span><span·class="ss">employee</span><span·class="p">,</span><span·class="w"> |
| 5443 | ····</span><span·class="p"·data-group-id="9784299338-2">[</span><span·class="p"·data-group-id="9784299338-3">{</span><span·class="ss">snmp</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9784299338-4">[</span><span·class="p"·data-group-id="9784299338-5">{</span><span·class="ss">key</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9784299338-6">{</span><span·class="ss">integer</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">string</span><span·class="p"·data-group-id="9784299338-6">}</span><span·class="p"·data-group-id="9784299338-5">}</span><span·class="p"·data-group-id="9784299338-4">]</span><span·class="p"·data-group-id="9784299338-3">}</span><span·class="p">,</span><span·class="w"> | ||
| 5444 | ···· | 5443 | ····</span><span·class="p"·data-group-id="0839296109-2">[</span><span·class="p"·data-group-id="0839296109-3">{</span><span·class="ss">snmp</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0839296109-4">[</span><span·class="p[·...·truncated·by·diffoscope;·len:·528,·SHA:·de72c4dbb500e9fe4a67d264273b2fce2da14f417468d34c5fb542d52b1dcf67·...·] |
| 5444 | ·····</span><span·class="p"·data-group-id="0839296109-7">{</span><span·class="ss">attributes</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">record_info</span><span·class="p"·data-group-id="0839296109-8">(</span><span·class="ss">fields</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">employees</span><span·class="p"·data-group-id="0839296109-8">)</span><span·class="p"·data-group-id="0839296109-7">}</span><span·class="p"·data-group-id="0839296109-2">]</span><span·class="p"·data-group-id="0839296109-1">)</span><span·class="p">,</span></code></pre><p>The·corresponding·SNMP·table·would·have·three·columns:·<code·class="inline">department</code>,·<code·class="inline">name</code>,·and | ||
| 5445 | <code·class="inline">telno</code>.</p><p>An·option·is·to·have·table·columns·that·are·not·visible·through·the·SNMP | 5445 | <code·class="inline">telno</code>.</p><p>An·option·is·to·have·table·columns·that·are·not·visible·through·the·SNMP |
| 5446 | protocol.·These·columns·must·be·the·last·columns·of·the·table.·In·the·previous | 5446 | protocol.·These·columns·must·be·the·last·columns·of·the·table.·In·the·previous |
| 5447 | example,·the·SNMP·table·could·have·columns·<code·class="inline">department</code>·and·<code·class="inline">name</code>·only.·The | 5447 | example,·the·SNMP·table·could·have·columns·<code·class="inline">department</code>·and·<code·class="inline">name</code>·only.·The |
| 5448 | application·could·then·use·column·<code·class="inline">telno</code>·internally,·but·it·would·not·be | 5448 | application·could·then·use·column·<code·class="inline">telno</code>·internally,·but·it·would·not·be |
| 5449 | visible·to·the·SNMP·managers.</p><p>In·a·table·monitored·by·SNMP,·all·elements·must·be·integers,·strings,·or·lists | 5449 | visible·to·the·SNMP·managers.</p><p>In·a·table·monitored·by·SNMP,·all·elements·must·be·integers,·strings,·or·lists |
| 5450 | of·integers.</p><p>When·a·table·is·SNMP·ordered,·modifications·are·more·expensive·than·usual, | 5450 | of·integers.</p><p>When·a·table·is·SNMP·ordered,·modifications·are·more·expensive·than·usual, |
| 5451 | O(logN).·Also,·more·memory·is·used.</p><p>Notice·that·only·the·lexicographical·SNMP·ordering·is·implemented·in·Mnesia,·not | 5451 | O(logN).·Also,·more·memory·is·used.</p><p>Notice·that·only·the·lexicographical·SNMP·ordering·is·implemented·in·Mnesia,·not |
| Offset 6008, 43 lines modified | Offset 6008, 43 lines modified | ||
| 6008 | <p>Execute·<code·class="inline">Fun</code>·with·arguments·<code·class="inline">Args</code>·as·a·transaction.</p><p>The·code·that·executes·inside·the·transaction·can·consist·of·a·series·of·table | 6008 | <p>Execute·<code·class="inline">Fun</code>·with·arguments·<code·class="inline">Args</code>·as·a·transaction.</p><p>The·code·that·executes·inside·the·transaction·can·consist·of·a·series·of·table |
| 6009 | manipulation·functions.·If·something·goes·wrong·inside·the·transaction·as·a | 6009 | manipulation·functions.·If·something·goes·wrong·inside·the·transaction·as·a |
| 6010 | result·of·a·user·error·or·a·certain·table·not·being·available,·the·entire | 6010 | result·of·a·user·error·or·a·certain·table·not·being·available,·the·entire |
| 6011 | transaction·is·terminated·and·the·function·<a·href="#transaction/1"><code·class="inline">transaction/1</code></a> | 6011 | transaction·is·terminated·and·the·function·<a·href="#transaction/1"><code·class="inline">transaction/1</code></a> |
| 6012 | returns·the·tuple·<code·class="inline">{aborted,·Reason}</code>.</p><p>If·all·is·going·well,·<code·class="inline">{atomic,·ResultOfFun}</code>·is·returned,·where·<code·class="inline">ResultOfFun</code> | 6012 | returns·the·tuple·<code·class="inline">{aborted,·Reason}</code>.</p><p>If·all·is·going·well,·<code·class="inline">{atomic,·ResultOfFun}</code>·is·returned,·where·<code·class="inline">ResultOfFun</code> |
| 6013 | is·the·value·of·the·last·expression·in·<code·class="inline">Fun</code>.</p><p>A·function·that·adds·a·family·to·the·database·can·be·written·as·follows·if·there | 6013 | is·the·value·of·the·last·expression·in·<code·class="inline">Fun</code>.</p><p>A·function·that·adds·a·family·to·the·database·can·be·written·as·follows·if·there |
| 6014 | is·a·structure·<code·class="inline">{family,·Father,·Mother,·ChildrenList}</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">add_family</span><span·class="p"·data-group-id=" | 6014 | is·a·structure·<code·class="inline">{family,·Father,·Mother,·ChildrenList}</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">add_family</span><span·class="p"·data-group-id="7214776459-1">(</span><span·class="p"·data-group-id="7214776459-2">{</span><span·class="ss">family</span><span·class="p">,</span><span·class="w">·</span><span·class="n">F</span><span·class="p">,</span><span·class="w">·</span><span·class="n">M</span><span·c[·...·truncated·by·diffoscope;·len:·166,·SHA:·fa99b5ed1af3c7a3f3af7f4a6ab4b432cfd3eda8a78e7572c4ee5dda0f5dfcc9·...·]-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 6015 | ····</span><span·class="n">ChildOids</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">map</span><span·class="p"·data-group-id=" | 6015 | ····</span><span·class="n">ChildOids</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">map</span><span·class="p"·data-group-id="7214776459-3">(</span><span·class="k">fun</span><span·class="w">·</span><span·class="ss">oid</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Children</span><span·class="p"·data-group-id[·...·truncated·by·diffoscope;·len:·12,·SHA:·dc409591cf534bf786cc09fb360cac06fc7e5eb09f5afc8d04ba7b49f67dbef8·...·]-3">)</span><span·class="p">,</span><span·class="w"> |
| 6016 | ····</span><span·class="n">Trans</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id=" | 6016 | ····</span><span·class="n">Trans</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id="7214776459-4">(</span><span·class="p"·data-group-id="7214776459-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 6017 | ········</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">write</span><span·class="p"·data-group-id="3797661226-5">(</span><span·class="n">F</span><span·class="o">#</span><span·class="ss">person</span><span·class="p"·data-group-id="3797661226-6">{</span><span·class="ss">children</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">ChildOids</span><span·class="p"·data-group-id="3797661226-6">}</span><span·class="p"·data-group-id="3797661226-5">)</span><span·class="p">,</span><span·class="w"> | ||
| 6018 | ········</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">write</span><span·class="p"·data-group-id=" | 6017 | ········</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">write</span><span·class="p"·data-group-id="7214776459-5">(</span><span·class="n">F</span><span·class="o">#</span><span·class="ss">person</span><span·class="p"·data-group-id="7214776459-6">{</span><span·class="ss">children</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span[·...·truncated·by·diffoscope;·len:·129,·SHA:·a6d9b1bbe582caedcb5b8ee2cb8a5914a5f5c588d795bda72d28a64b7586433a·...·]">)</span><span·class="p">,</span><span·class="w"> |
| 6018 | ········</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">write</span><span·class="p"·data-group-id="7214776459-7">(</span><span·class="n">M</span><span·class="o">#</span><span·class="ss">person</span><span·class="p"·data-group-id="7214776459-8">{</span><span·class="ss">children</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">ChildOids</span><span·class="p"·data-group-id="7214776459-8">}</span><span·class="p"·data-group-id="7214776459-7">)</span><span·class="p">,</span><span·class="w"> | ||
| 6019 | ········</span><span·class="n">Write</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id=" | 6019 | ········</span><span·class="n">Write</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id="7214776459-9">(</span><span·class="n">Child</span><span·class="p"·data-group-id="7214776459-9">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">write<[·...·truncated·by·diffoscope;·len:·129,·SHA:·74ec508587e3265e71685ae80f46a1fe91846adffd4cc8ede7af24454527c851·...·]-10">)</span><span·class="w">·</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> |
| 6020 | ········</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">foreach</span><span·class="p"·data-group-id=" | 6020 | ········</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">foreach</span><span·class="p"·data-group-id="7214776459-11">(</span><span·class="n">Write</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Children</span><span·class="p"·data-group-id="7214776459-11">)</span><span·class="w"> |
| 6021 | ····</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> | 6021 | ····</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> |
| 6022 | ····</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">transaction</span><span·class="p"·data-group-id=" | 6022 | ····</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">transaction</span><span·class="p"·data-group-id="7214776459-12">(</span><span·class="n">Trans</span><span·class="p"·data-group-id="7214776459-12">)</span><span·class="p">.</span><span·class="w"> |
| 6023 | </span><span·class="nf">oid</span><span·class="p"·data-group-id=" | 6023 | </span><span·class="nf">oid</span><span·class="p"·data-group-id="7214776459-13">(</span><span·class="n">Rec</span><span·class="p"·data-group-id="7214776459-13">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="p"·data-group-id="7214776459-14">{</span><span·class="nf">elemen[·...·truncated·by·diffoscope;·len:·542,·SHA:·4b1ab98ed05abdd8006c3a762a2e9875b79677a9a3c2e8726acbcc94aa890cad·...·]-14">}</span><span·class="p">.</span></code></pre><p>This·code·adds·a·set·of·people·to·the·database.·Running·this·code·within·one |
| 6024 | transaction·ensures·that·either·the·whole·family·is·added·to·the·database,·or | 6024 | transaction·ensures·that·either·the·whole·family·is·added·to·the·database,·or |
| 6025 | the·whole·transaction·terminates.·For·example,·if·the·last·child·is·badly | 6025 | the·whole·transaction·terminates.·For·example,·if·the·last·child·is·badly |
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| Offset 155, 160 lines modified | Offset 155, 160 lines modified | ||
| 155 | </span><span·class="c1">%%</span><span·class="w"> | 155 | </span><span·class="c1">%%</span><span·class="w"> |
| 156 | </span><span·class="c1">%%·The·NewOpaqueData·arguments·returned·by·restore·callback·functions·will</span><span·class="w"> | 156 | </span><span·class="c1">%%·The·NewOpaqueData·arguments·returned·by·restore·callback·functions·will</span><span·class="w"> |
| 157 | </span><span·class="c1">%%·be·given·as·input·when·the·next·restore·callback·function·is·invoked</span><span·class="w"> | 157 | </span><span·class="c1">%%·be·given·as·input·when·the·next·restore·callback·function·is·invoked</span><span·class="w"> |
| 158 | </span><span·class="c1">%%·If·any·return·value·does·not·match·{ok,·_}·the·restore·will·be·aborted.</span><span·class="w"> | 158 | </span><span·class="c1">%%·If·any·return·value·does·not·match·{ok,·_}·the·restore·will·be·aborted.</span><span·class="w"> |
| 159 | </span><span·class="c1">%%</span><span·class="w"> | 159 | </span><span·class="c1">%%</span><span·class="w"> |
| 160 | </span><span·class="c1">%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%</span><span·class="w"> | 160 | </span><span·class="c1">%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%</span><span·class="w"> |
| 161 | </span><span·class="w"> | 161 | </span><span·class="w"> |
| 162 | </span><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 162 | </span><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="3822926393-1">(</span><span·class="ss">mnesia_backup</span><span·class="p"·data-group-id="3822926393-1">)</span><span·class="p">.</span><span·class="w"> |
| 163 | </span><span·class="w"> | 163 | </span><span·class="w"> |
| 164 | </span><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id=" | 164 | </span><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id="3822926393-2">(</span><span·class="s">"kernel/include/file.hrl"</span><span·class="p"·data-group-id="3822926393-2">)</span><span·class="p">.</span><span·class="w"> |
| 165 | </span><span·class="w"> | 165 | </span><span·class="w"> |
| 166 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 166 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="3822926393-3">(</span><span·class="p"·data-group-id="3822926393-4">[</span><span·class="w"> |
| 167 | ·········</span><span·class="c1">%%·Write·access</span><span·class="w"> | 167 | ·········</span><span·class="c1">%%·Write·access</span><span·class="w"> |
| 168 | ·········</span><span·class="ss">open_write</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w"> | 168 | ·········</span><span·class="ss">open_write</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w"> |
| 169 | ·········</span><span·class="ss">write</span><span·class="p">/</span><span·class="mi">2</span><span·class="p">,</span><span·class="w"> | 169 | ·········</span><span·class="ss">write</span><span·class="p">/</span><span·class="mi">2</span><span·class="p">,</span><span·class="w"> |
| 170 | ·········</span><span·class="ss">commit_write</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w"> | 170 | ·········</span><span·class="ss">commit_write</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w"> |
| 171 | ·········</span><span·class="ss">abort_write</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w"> | 171 | ·········</span><span·class="ss">abort_write</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w"> |
| 172 | ·········</span><span·class="c1">%%·Read·access</span><span·class="w"> | 172 | ·········</span><span·class="c1">%%·Read·access</span><span·class="w"> |
| 173 | ·········</span><span·class="ss">open_read</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w"> | 173 | ·········</span><span·class="ss">open_read</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w"> |
| 174 | ·········</span><span·class="ss">read</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w"> | 174 | ·········</span><span·class="ss">read</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w"> |
| 175 | ·········</span><span·class="ss">close_read</span><span·class="p">/</span><span·class="mi">1</span><span·class="w"> | 175 | ·········</span><span·class="ss">close_read</span><span·class="p">/</span><span·class="mi">1</span><span·class="w"> |
| 176 | ········</span><span·class="p"·data-group-id=" | 176 | ········</span><span·class="p"·data-group-id="3822926393-4">]</span><span·class="p"·data-group-id="3822926393-3">)</span><span·class="p">.</span><span·class="w"> |
| 177 | </span><span·class="c1">%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%</span><span·class="w"> | 177 | </span><span·class="c1">%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%</span><span·class="w"> |
| 178 | </span><span·class="c1">%%·Backup·callback·interface</span><span·class="w"> | 178 | </span><span·class="c1">%%·Backup·callback·interface</span><span·class="w"> |
| 179 | </span><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id=" | 179 | </span><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id="3822926393-5">(</span><span·class="ss">backup</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3822926393-6">{</span><span·class="ss">tmp_file</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">file</[·...·truncated·by·diffoscope;·len:·180,·SHA:·ee8eb14bad2f8f2aa05014e2ffe45083a84e2eafe87e882c6d7bfbbb323a5aab·...·]-5">)</span><span·class="p">.</span><span·class="w"> |
| 180 | </span><span·class="c1">%%·Opens·backup·media·for·write</span><span·class="w"> | 180 | </span><span·class="c1">%%·Opens·backup·media·for·write</span><span·class="w"> |
| 181 | </span><span·class="c1">%%</span><span·class="w"> | 181 | </span><span·class="c1">%%</span><span·class="w"> |
| 182 | </span><span·class="c1">%%·Returns·{ok,·OpaqueData}·or·{error,·Reason}</span><span·class="w"> | 182 | </span><span·class="c1">%%·Returns·{ok,·OpaqueData}·or·{error,·Reason}</span><span·class="w"> |
| 183 | </span><span·class="nf">open_write</span><span·class="p"·data-group-id=" | 183 | </span><span·class="nf">open_write</span><span·class="p"·data-group-id="3822926393-7">(</span><span·class="n">OpaqueData</span><span·class="p"·data-group-id="3822926393-7">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 184 | ····</span><span·class="n">File</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">OpaqueData</span><span·class="p">,</span><span·class="w"> | 184 | ····</span><span·class="n">File</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">OpaqueData</span><span·class="p">,</span><span·class="w"> |
| 185 | ····</span><span·class="n">Tmp</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">concat</span><span·class="p"·data-group-id=" | 185 | ····</span><span·class="n">Tmp</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">concat</span><span·class="p"·data-group-id="3822926393-8">(</span><span·class="p"·data-group-id="3822926393-9">[</span><span·class="n">File</span><span·class="p">,</span><span·class="s">".BUPTMP"</span><span·class="p"·data-group-id="3822926393-9">]</span><span·class="p"·data-group-id="3822[·...·truncated·by·diffoscope;·len:·6,·SHA:·05d86dcfb3225d199fe7a1bd20434edef02df167dbbbb8d1f96d2d5b5d5fb484·...·]-8">)</span><span·class="p">,</span><span·class="w"> |
| 186 | ····</span><span·class="nc">file</span><span·class="p">:</span><span·class="nf">delete</span><span·class="p"·data-group-id=" | 186 | ····</span><span·class="nc">file</span><span·class="p">:</span><span·class="nf">delete</span><span·class="p"·data-group-id="3822926393-10">(</span><span·class="n">Tmp</span><span·class="p"·data-group-id="3822926393-10">)</span><span·class="p">,</span><span·class="w"> |
| 187 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">disk_log</span><span·class="p">:</span><span·class="nf">open</span><span·class="p"·data-group-id=" | 187 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">disk_log</span><span·class="p">:</span><span·class="nf">open</span><span·class="p"·data-group-id="3822926393-11">(</span><span·class="p"·data-group-id="3822926393-12">[</span><span·class="p"·data-group-id="3822926393-13">{</span><span·class="ss">name</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">make_ref</span><span·class="p"·d[·...·truncated·by·diffoscope;·len:·132,·SHA:·2993b88eb990261dc219379edd6c7a53c98b412bb42a05ad5d5748d6cca217a0·...·]-13">}</span><span·class="p">,</span><span·class="w"> |
| 188 | ························</span><span·class="p"·data-group-id=" | 188 | ························</span><span·class="p"·data-group-id="3822926393-15">{</span><span·class="ss">file</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Tmp</span><span·class="p"·data-group-id="3822926393-15">}</span><span·class="p">,</span><span·class="w"> |
| 189 | ························</span><span·class="p"·data-group-id=" | 189 | ························</span><span·class="p"·data-group-id="3822926393-16">{</span><span·class="ss">repair</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">false</span><span·class="p"·data-group-id="3822926393-16">}</span><span·class="p">,</span><span·class="w"> |
| 190 | ························</span><span·class="p"·data-group-id=" | 190 | ························</span><span·class="p"·data-group-id="3822926393-17">{</span><span·class="ss">linkto</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">self</span><span·class="p"·data-group-id="3822926393-18">(</span><span·class="p"·data-group-id="3822926393-18">)</span><span·class="p"·dat[·...·truncated·by·diffoscope;·len:·130,·SHA:·7909abc2582fa9286568495ffdcfe8e1c1c6a6b3a94bfdff351f52a1a06ec9be·...·]-11">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 191 | ········</span><span·class="p"·data-group-id=" | 191 | ········</span><span·class="p"·data-group-id="3822926393-19">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Fd</span><span·class="p"·data-group-id="3822926393-19">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 192 | ············</span><span·class="p"·data-group-id=" | 192 | ············</span><span·class="p"·data-group-id="3822926393-20">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">backup</span><span·class="p"·data-group-id="3822926393-21">{</span><span·class="ss">tmp_file</span><span·class="w">·</[·...·truncated·by·diffoscope;·len:·527,·SHA:·4a8c9c58a0d7de6011df59d4821d8f9d79a691b0505e9f2f1c8288c590117373·...·]-20">}</span><span·class="p">;</span><span·class="w"> |
| 193 | ········</span><span·class="p"·data-group-id=" | 193 | ········</span><span·class="p"·data-group-id="3822926393-22">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Reason</span><span·class="p"·data-group-id="3822926393-22">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 194 | ············</span><span·class="p"·data-group-id=" | 194 | ············</span><span·class="p"·data-group-id="3822926393-23">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Reason</span><span·class="p"·data-group-id="3822926393-23">}</span><span·class="w"> |
| 195 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> | 195 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> |
| 196 | </span><span·class="c1">%%·Writes·BackupItems·to·the·backup·media</span><span·class="w"> | 196 | </span><span·class="c1">%%·Writes·BackupItems·to·the·backup·media</span><span·class="w"> |
| 197 | </span><span·class="c1">%%</span><span·class="w"> | 197 | </span><span·class="c1">%%</span><span·class="w"> |
| 198 | </span><span·class="c1">%%·Returns·{ok,·OpaqueData}·or·{error,·Reason}</span><span·class="w"> | 198 | </span><span·class="c1">%%·Returns·{ok,·OpaqueData}·or·{error,·Reason}</span><span·class="w"> |
| 199 | </span><span·class="nf">write</span><span·class="p"·data-group-id=" | 199 | </span><span·class="nf">write</span><span·class="p"·data-group-id="3822926393-24">(</span><span·class="n">OpaqueData</span><span·class="p">,</span><span·class="w">·</span><span·class="n">BackupItems</span><span·class="p"·data-group-id="3822926393-24">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 200 | ····</span><span·class="n">B</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">OpaqueData</span><span·class="p">,</span><span·class="w"> | 200 | ····</span><span·class="n">B</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">OpaqueData</span><span·class="p">,</span><span·class="w"> |
| 201 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">disk_log</span><span·class="p">:</span><span·class="nf">log_terms</span><span·class="p"·data-group-id=" | 201 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">disk_log</span><span·class="p">:</span><span·class="nf">log_terms</span><span·class="p"·data-group-id="3822926393-25">(</span><span·class="n">B</span><span·class="o">#</span><span·class="ss">backup</span><span·class="p">.</span><span·class="ss">file_desc</span><span·class="p">,</span><span·class="w">·</span><span·class="n">BackupItems</span><span·class="p"·[·...·truncated·by·diffoscope;·len:·25,·SHA:·cd07571b476527466237b73861d7ebc1891e0586f32f3b20736f242b77baa825·...·]-25">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 202 | ········</span><span·class="ss">ok</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 202 | ········</span><span·class="ss">ok</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 203 | ············</span><span·class="p"·data-group-id=" | 203 | ············</span><span·class="p"·data-group-id="3822926393-26">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">B</span><span·class="p"·data-group-id="3822926393-26">}</span><span·class="p">;</span><span·class="w"> |
| 204 | ········</span><span·class="p"·data-group-id=" | 204 | ········</span><span·class="p"·data-group-id="3822926393-27">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Reason</span><span·class="p"·data-group-id="3822926393-27">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 205 | ············</span><span·class="nf">abort_write</span><span·class="p"·data-group-id=" | 205 | ············</span><span·class="nf">abort_write</span><span·class="p"·data-group-id="3822926393-28">(</span><span·class="n">B</span><span·class="p"·data-group-id="3822926393-28">)</span><span·class="p">,</span><span·class="w"> |
| 206 | ············</span><span·class="p"·data-group-id=" | 206 | ············</span><span·class="p"·data-group-id="3822926393-29">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Reason</span><span·class="p"·data-group-id="3822926393-29">}</span><span·class="w"> |
| 207 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> | 207 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> |
| 208 | </span><span·class="c1">%%·Closes·the·backup·media·after·a·successful·backup</span><span·class="w"> | 208 | </span><span·class="c1">%%·Closes·the·backup·media·after·a·successful·backup</span><span·class="w"> |
| 209 | </span><span·class="c1">%%</span><span·class="w"> | 209 | </span><span·class="c1">%%</span><span·class="w"> |
| 210 | </span><span·class="c1">%%·Returns·{ok,·ReturnValueToUser}·or·{error,·Reason}</span><span·class="w"> | 210 | </span><span·class="c1">%%·Returns·{ok,·ReturnValueToUser}·or·{error,·Reason}</span><span·class="w"> |
| 211 | </span><span·class="nf">commit_write</span><span·class="p"·data-group-id=" | 211 | </span><span·class="nf">commit_write</span><span·class="p"·data-group-id="3822926393-30">(</span><span·class="n">OpaqueData</span><span·class="p"·data-group-id="3822926393-30">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 212 | ····</span><span·class="n">B</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">OpaqueData</span><span·class="p">,</span><span·class="w"> | 212 | ····</span><span·class="n">B</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">OpaqueData</span><span·class="p">,</span><span·class="w"> |
| 213 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">disk_log</span><span·class="p">:</span><span·class="nf">sync</span><span·class="p"·data-group-id=" | 213 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">disk_log</span><span·class="p">:</span><span·class="nf">sync</span><span·class="p"·data-group-id="3822926393-31">(</span><span·class="n">B</span><span·class="o">#</span><span·class="ss">backup</span><span·class="p">.</span><span·class="ss">file_desc</span><span·class="p"·data-group-id="3822926393-31">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 214 | ········</span><span·class="ss">ok</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 214 | ········</span><span·class="ss">ok</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 215 | ············</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">disk_log</span><span·class="p">:</span><span·class="nf">close</span><span·class="p"·data-group-id=" | 215 | ············</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">disk_log</span><span·class="p">:</span><span·class="nf">close</span><span·class="p"·data-group-id="3822926393-32">(</span><span·class="n">B</span><span·class="o">#</span><span·class="ss">backup</span><span·class="p">.</span><span·class="ss">file_desc</span><span·class="p"·data-group-id="3822926393-32">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 216 | ················</span><span·class="ss">ok</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 216 | ················</span><span·class="ss">ok</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 217 | ····················</span><span·class="nc">file</span><span·class="p">:</span><span·class="nf">delete</span><span·class="p"·data-group-id=" | 217 | ····················</span><span·class="nc">file</span><span·class="p">:</span><span·class="nf">delete</span><span·class="p"·data-group-id="3822926393-33">(</span><span·class="n">B</span><span·class="o">#</span><span·class="ss">backup</span><span·class="p">.</span><span·class="ss">file</span><span·class="p"·data-group-id="3822926393-33">)</span><span·class="p">,</span><span·class="w"> |
| 218 | ····················</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">file</span><span·class="p">:</span><span·class="nf">rename</span><span·class="p"·data-group-id=" | 218 | ····················</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">file</span><span·class="p">:</span><span·class="nf">rename</span><span·class="p"·data-group-id="3822926393-34">(</span><span·class="n">B</span><span·class="o">#</span><span·class="ss">backup</span><span·class="p">.</span><span·class="ss">tmp_file</span><span·class="p">,</span><span·class="w">·</span><span·class="n">B</span><span·class="o">#</span><sp[·...·truncated·by·diffoscope;·len:·120,·SHA:·6de03e304230bce48070c7b587799b4c446c09b0bcce9f65d9427e753588f2cd·...·]-34">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 219 | ························</span><span·class="ss">ok</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 219 | ························</span><span·class="ss">ok</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 220 | ····························</span><span·class="p"·data-group-id=" | 220 | ····························</span><span·class="p"·data-group-id="3822926393-35">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">B</span><span·class="o">#</span><span·class="ss">backup</span><span·class="p">.</span><span·class="ss">file</span><span·class="p"·data-group-id[·...·truncated·by·diffoscope;·len:·12,·SHA:·e2b0050f83b82705ae2d04301b51c3a6e56323f63a1aa690b8dbc16d2680e651·...·]-35">}</span><span·class="p">;</span><span·class="w"> |
| 221 | ························</span><span·class="p"·data-group-id=" | 221 | ························</span><span·class="p"·data-group-id="3822926393-36">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Reason</span><span·class="p"·data-group-id="3822926393-36">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 222 | ····························</span><span·class="p"·data-group-id=" | 222 | ····························</span><span·class="p"·data-group-id="3822926393-37">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Reason</span><span·class="p"·data-group-id="3822926393-37">}</span><span·class="w"> |
| 223 | ····················</span><span·class="k">end</span><span·class="p">;</span><span·class="w"> | 223 | ····················</span><span·class="k">end</span><span·class="p">;</span><span·class="w"> |
| 224 | ················</span><span·class="p"·data-group-id=" | 224 | ················</span><span·class="p"·data-group-id="3822926393-38">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Reason</span><span·class="p"·data-group-id="3822926393-38">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 225 | ····················</span><span·class="p"·data-group-id=" | 225 | ····················</span><span·class="p"·data-group-id="3822926393-39">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Reason</span><span·class="p"·data-group-id="3822926393-39">}</span><span·class="w"> |
| 226 | ············</span><span·class="k">end</span><span·class="p">;</span><span·class="w"> | 226 | ············</span><span·class="k">end</span><span·class="p">;</span><span·class="w"> |
| 227 | ········</span><span·class="p"·data-group-id=" | 227 | ········</span><span·class="p"·data-group-id="3822926393-40">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Reason</span><span·class="p"·data-group-id="3822926393-40">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 228 | ············</span><span·class="p"·data-group-id=" | 228 | ············</span><span·class="p"·data-group-id="3822926393-41">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Reason</span><span·class="p"·data-group-id="3822926393-41">}</span><span·class="w"> |
| 229 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> | 229 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> |
| 230 | </span><span·class="c1">%%·Closes·the·backup·media·after·an·interrupted·backup</span><span·class="w"> | 230 | </span><span·class="c1">%%·Closes·the·backup·media·after·an·interrupted·backup</span><span·class="w"> |
| 231 | </span><span·class="c1">%%</span><span·class="w"> | 231 | </span><span·class="c1">%%</span><span·class="w"> |
| 232 | </span><span·class="c1">%%·Returns·{ok,·ReturnValueToUser}·or·{error,·Reason}</span><span·class="w"> | 232 | </span><span·class="c1">%%·Returns·{ok,·ReturnValueToUser}·or·{error,·Reason}</span><span·class="w"> |
| 233 | </span><span·class="nf">abort_write</span><span·class="p"·data-group-id=" | 233 | </span><span·class="nf">abort_write</span><span·class="p"·data-group-id="3822926393-42">(</span><span·class="n">BackupRef</span><span·class="p"·data-group-id="3822926393-42">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 234 | ····</span><span·class="n">Res</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">disk_log</span><span·class="p">:</span><span·class="nf">close</span><span·class="p"·data-group-id=" | 234 | ····</span><span·class="n">Res</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">disk_log</span><span·class="p">:</span><span·class="nf">close</span><span·class="p"·data-group-id="3822926393-43">(</span><span·class="n">BackupRef</span><span·class="o">#</span><span·class="ss">backup</span><span·class="p">.</span><span·class="ss">file_desc</span><span·class="p"·data-group-id="3822926393-43">)</span><span·class="p">,</span><span·class="w"> |
| 235 | ····</span><span·class="nc">file</span><span·class="p">:</span><span·class="nf">delete</span><span·class="p"·data-group-id=" | 235 | ····</span><span·class="nc">file</span><span·class="p">:</span><span·class="nf">delete</span><span·class="p"·data-group-id="3822926393-44">(</span><span·class="n">BackupRef</span><span·class="o">#</span><span·class="ss">backup</span><span·class="p">.</span><span·class="ss">tmp_file</span><span·class="p"·data-group-id="3822926393-44">)</span><span·class="p">,</span><span·class="w"> |
| 236 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="n">Res</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> | 236 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="n">Res</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 237 | ········</span><span·class="ss">ok</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 237 | ········</span><span·class="ss">ok</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 238 | ············</span><span·class="p"·data-group-id=" | 238 | ············</span><span·class="p"·data-group-id="3822926393-45">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">BackupRef</span><span·class="o">#</span><span·class="ss">backup</span><span·class="p">.</span><span·class="ss">file</span><span·class="p"·data-[·...·truncated·by·diffoscope;·len:·20,·SHA:·a310710325f71f9565ae8914a7c86eaa776f0e45da3467d8fab2e156d5ab9b7e·...·]-45">}</span><span·class="p">;</span><span·class="w"> |
| 239 | ········</span><span·class="p"·data-group-id=" | 239 | ········</span><span·class="p"·data-group-id="3822926393-46">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Reason</span><span·class="p"·data-group-id="3822926393-46">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 240 | ············</span><span·class="p"·data-group-id=" | 240 | ············</span><span·class="p"·data-group-id="3822926393-47">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Reason</span><span·class="p"·data-group-id="3822926393-47">}</span><span·class="w"> |
| 241 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> | 241 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> |
| 242 | </span><span·class="c1">%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%</span><span·class="w"> | 242 | </span><span·class="c1">%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%</span><span·class="w"> |
| 243 | </span><span·class="c1">%%·Restore·callback·interface</span><span·class="w"> | 243 | </span><span·class="c1">%%·Restore·callback·interface</span><span·class="w"> |
| 244 | </span><span·class="w"> | 244 | </span><span·class="w"> |
| 245 | </span><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id=" | 245 | </span><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id="3822926393-48">(</span><span·class="ss">restore</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3822926393-49">{</span><span·class="ss">file</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">file_de[·...·truncated·by·diffoscope;·len:·180,·SHA:·45073b7545ffcefb12c07569251a9b4540b056e3ae3512a0fd58deab1f5725f2·...·]-48">)</span><span·class="p">.</span><span·class="w"> |
| 246 | </span><span·class="c1">%%·Opens·backup·media·for·read</span><span·class="w"> | 246 | </span><span·class="c1">%%·Opens·backup·media·for·read</span><span·class="w"> |
| 247 | </span><span·class="c1">%%</span><span·class="w"> | 247 | </span><span·class="c1">%%</span><span·class="w"> |
| 248 | </span><span·class="c1">%%·Returns·{ok,·OpaqueData}·or·{error,·Reason}</span><span·class="w"> | 248 | </span><span·class="c1">%%·Returns·{ok,·OpaqueData}·or·{error,·Reason}</span><span·class="w"> |
| 249 | </span><span·class="nf">open_read</span><span·class="p"·data-group-id=" | 249 | </span><span·class="nf">open_read</span><span·class="p"·data-group-id="3822926393-50">(</span><span·class="n">OpaqueData</span><span·class="p"·data-group-id="3822926393-50">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 250 | ····</span><span·class="n">File</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">OpaqueData</span><span·class="p">,</span><span·class="w"> | 250 | ····</span><span·class="n">File</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">OpaqueData</span><span·class="p">,</span><span·class="w"> |
| 251 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">file</span><span·class="p">:</span><span·class="nf">read_file_info</span><span·class="p"·data-group-id=" | 251 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">file</span><span·class="p">:</span><span·class="nf">read_file_info</span><span·class="p"·data-group-id="3822926393-51">(</span><span·class="n">File</span><span·class="p"·data-group-id="3822926393-51">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 252 | ········</span><span·class="p"·data-group-id=" | 252 | ········</span><span·class="p"·data-group-id="3822926393-52">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Reason</span><span·class="p"·data-group-id="3822926393-52">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 253 | ············</span><span·class="p"·data-group-id=" | 253 | ············</span><span·class="p"·data-group-id="3822926393-53">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Reason</span><span·class="p"·data-group-id="3822926393-53">}</span><span·class="p">;</span><span·class="w"> |
| 254 | ········</span><span·class="p">_</span><span·class="n">FileInfo</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="c1">%%·file·exists</span><span·class="w"> | 254 | ········</span><span·class="p">_</span><span·class="n">FileInfo</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="c1">%%·file·exists</span><span·class="w"> |
| 255 | ············</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">disk_log</span><span·class="p">:</span><span·class="nf">open</span><span·class="p"·data-group-id=" | 255 | ············</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">disk_log</span><span·class="p">:</span><span·class="nf">open</span><span·class="p"·data-group-id="3822926393-54">(</span><span·class="p"·data-group-id="3822926393-55">[</span><span·class="p"·data-group-id="3822926393-56">{</span><span·class="ss">file</span><span·class="p">,</span><span·class="w">·</span><span·class="n">File</span><span·class="p"·data-g[·...·truncated·by·diffoscope;·len:·19,·SHA:·c8b51d4b5b46ed70221a7137b958aea1c9e1eca836105519a2cf2e255ac4735f·...·]-56">}</span><span·class="p">,</span><span·class="w"> |
| 256 | ································</span><span·class="p"·data-group-id=" | 256 | ································</span><span·class="p"·data-group-id="3822926393-57">{</span><span·class="ss">name</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">make_ref</span><span·class="p"·data-group-id="3822926393-58">(</span><span·class="p"·data-group-id="3822926393-58">)</span><span·class="p"·d[·...·truncated·by·diffoscope;·len:·24,·SHA:·799e00a8a4c42d6316108f39a1a25052d467421be02354f426e231a40a77a34d·...·]-57">}</span><span·class="p">,</span><span·class="w"> |
| 257 | ································</span><span·class="p"·data-group-id=" | 257 | ································</span><span·class="p"·data-group-id="3822926393-59">{</span><span·class="ss">repair</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">false</span><span·class="p"·data-group-id="3822926393-59">}</span><span·class="p">,</span><span·class="w"> |
| 258 | ································</span><span·class="p"·data-group-id=" | 258 | ································</span><span·class="p"·data-group-id="3822926393-60">{</span><span·class="ss">mode</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">read_only</span><span·class="p"·data-group-id="3822926393-60">}</span><span·class="p">,</span><span·class="w"> |
| 259 | ································</span><span·class="p"·data-group-id=" | 259 | ································</span><span·class="p"·data-group-id="3822926393-61">{</span><span·class="ss">linkto</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">self</span><span·class="p"·data-group-id="3822926393-62">(</span><span·class="p"·data-group-id="3822926393-62">)</span><span·class="p"·dat[·...·truncated·by·diffoscope;·len:·130,·SHA:·1ac3125d82070e1a0e962fd3ac8a4ca8c00c54b3da5464bb63c31db0483f1de4·...·]-54">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 260 | ················</span><span·class="p"·data-group-id=" | 260 | ················</span><span·class="p"·data-group-id="3822926393-63">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Fd</span><span·class="p"·data-group-id="3822926393-63">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 261 | ····················</span><span·class="p"·data-group-id=" | 261 | ····················</span><span·class="p"·data-group-id="3822926393-64">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">restore</span><span·class="p"·data-group-id="3822926393-65">{</span><span·class="ss">file</span><span·class="w">·</spa[·...·truncated·by·diffoscope;·len:·527,·SHA:·f81254f7571c23e8c22b77fdef7583afc0e20c44bde94213ca5ced698055b0f8·...·]-64">}</span><span·class="p">;</span><span·class="w"> |
| 262 | ················</span><span·class="p"·data-group-id=" | 262 | ················</span><span·class="p"·data-group-id="3822926393-66">{</span><span·class="ss">repaired</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Fd</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="p">,</span><span·class="w">·</span><span·cl[·...·truncated·by·diffoscope;·len:·246,·SHA:·034e52c7e24de171309d44ccd8a6bf36a8abd4fbce33314bdd352db34841eccb·...·]-66">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 263 | ····················</span><span·class="p"·data-group-id=" | 263 | ····················</span><span·class="p"·data-group-id="3822926393-68">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">restore</span><span·class="p"·data-group-id="3822926393-69">{</span><span·class="ss">file</span><span·class="w">·</spa[·...·truncated·by·diffoscope;·len:·527,·SHA:·2dbad40b2b8d48b7e61195f60f21534a84e6d81004d132c28c4745c86a47a2df·...·]-68">}</span><span·class="p">;</span><span·class="w"> |
| 264 | ················</span><span·class="p"·data-group-id=" | 264 | ················</span><span·class="p"·data-group-id="3822926393-70">{</span><span·class="ss">repaired</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Fd</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="p">,</span><span·class="w">·</span><span·cl[·...·truncated·by·diffoscope;·len:·57,·SHA:·7400ba4dfa2655dec42a4edffc4c0843aa99c38b57d908327e254cff1a335cbd·...·]-70">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 265 | ····················</span><span·class="p"·data-group-id=" | 265 | ····················</span><span·class="p"·data-group-id="3822926393-71">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">restore</span><span·class="p"·data-group-id="3822926393-72">{</span><span·class="ss">file</span><span·class="w">·</spa[·...·truncated·by·diffoscope;·len:·527,·SHA:·bda744fc1db2d7a5734a616ec0226a81f8549f407d97ff7c91a6c277575c7ae9·...·]-71">}</span><span·class="p">;</span><span·class="w"> |
| 266 | ················</span><span·class="p"·data-group-id=" | 266 | ················</span><span·class="p"·data-group-id="3822926393-73">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Reason</span><span·class="p"·data-group-id="3822926393-73">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 267 | ····················</span><span·class="p"·data-group-id=" | 267 | ····················</span><span·class="p"·data-group-id="3822926393-74">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Reason</span><span·class="p"·data-group-id="3822926393-74">}</span><span·class="w"> |
| 268 | ············</span><span·class="k">end</span><span·class="w"> | 268 | ············</span><span·class="k">end</span><span·class="w"> |
| 269 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> | 269 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> |
| 270 | </span><span·class="c1">%%·Reads·BackupItems·from·the·backup·media</span><span·class="w"> | 270 | </span><span·class="c1">%%·Reads·BackupItems·from·the·backup·media</span><span·class="w"> |
| 271 | </span><span·class="c1">%%</span><span·class="w"> | 271 | </span><span·class="c1">%%</span><span·class="w"> |
| 272 | </span><span·class="c1">%%·Returns·{ok,·OpaqueData,·BackupItems}·or·{error,·Reason}</span><span·class="w"> | 272 | </span><span·class="c1">%%·Returns·{ok,·OpaqueData,·BackupItems}·or·{error,·Reason}</span><span·class="w"> |
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| Offset 127, 262 lines modified | Offset 127, 262 lines modified | ||
| 127 | <h2·id="mnesia_access-callback-behavior"·class="section-heading"> | 127 | <h2·id="mnesia_access-callback-behavior"·class="section-heading"> |
| 128 | ··<a·href="#mnesia_access-callback-behavior"·class="hover-link"> | 128 | ··<a·href="#mnesia_access-callback-behavior"·class="hover-link"> |
| 129 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 129 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 130 | ··</a> | 130 | ··</a> |
| 131 | ··<span·class="text">mnesia_access·Callback·Behavior</span> | 131 | ··<span·class="text">mnesia_access·Callback·Behavior</span> |
| 132 | </h2> | 132 | </h2> |
| 133 | <pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 133 | <pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="3485468210-1">(</span><span·class="ss">mnesia_frag</span><span·class="p"·data-group-id="3485468210-1">)</span><span·class="p">.</span><span·class="w"> |
| 134 | </span><span·class="c1">%%·Callback·functions·when·accessed·within·an·activity</span><span·class="w"> | 134 | </span><span·class="c1">%%·Callback·functions·when·accessed·within·an·activity</span><span·class="w"> |
| 135 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 135 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="3485468210-2">(</span><span·class="p"·data-group-id="3485468210-3">[</span><span·class="w"> |
| 136 | ·········</span><span·class="ss">lock</span><span·class="p">/</span><span·class="mi">4</span><span·class="p">,</span><span·class="w"> | 136 | ·········</span><span·class="ss">lock</span><span·class="p">/</span><span·class="mi">4</span><span·class="p">,</span><span·class="w"> |
| 137 | ·········</span><span·class="ss">write</span><span·class="p">/</span><span·class="mi">5</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">delete</span><span·class="p">/</span><span·class="mi">5</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">delete_object</span><span·class="p">/</span><span·class="mi">5</span><span·class="p">,</span><span·class="w"> | 137 | ·········</span><span·class="ss">write</span><span·class="p">/</span><span·class="mi">5</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">delete</span><span·class="p">/</span><span·class="mi">5</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">delete_object</span><span·class="p">/</span><span·class="mi">5</span><span·class="p">,</span><span·class="w"> |
| 138 | ·········</span><span·class="ss">read</span><span·class="p">/</span><span·class="mi">5</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">match_object</span><span·class="p">/</span><span·class="mi">5</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">all_keys</span><span·class="p">/</span><span·class="mi">4</span><span·class="p">,</span><span·class="w"> | 138 | ·········</span><span·class="ss">read</span><span·class="p">/</span><span·class="mi">5</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">match_object</span><span·class="p">/</span><span·class="mi">5</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">all_keys</span><span·class="p">/</span><span·class="mi">4</span><span·class="p">,</span><span·class="w"> |
| 139 | ·········</span><span·class="ss">select</span><span·class="p">/</span><span·class="mi">5</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">select</span><span·class="p">/</span><span·class="mi">6</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">select_cont</span><span·class="p">/</span><span·class="mi">3</span><span·class="p">,</span><span·class="w"> | 139 | ·········</span><span·class="ss">select</span><span·class="p">/</span><span·class="mi">5</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">select</span><span·class="p">/</span><span·class="mi">6</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">select_cont</span><span·class="p">/</span><span·class="mi">3</span><span·class="p">,</span><span·class="w"> |
| 140 | ·········</span><span·class="ss">index_match_object</span><span·class="p">/</span><span·class="mi">6</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">index_read</span><span·class="p">/</span><span·class="mi">6</span><span·class="p">,</span><span·class="w"> | 140 | ·········</span><span·class="ss">index_match_object</span><span·class="p">/</span><span·class="mi">6</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">index_read</span><span·class="p">/</span><span·class="mi">6</span><span·class="p">,</span><span·class="w"> |
| 141 | ·········</span><span·class="ss">foldl</span><span·class="p">/</span><span·class="mi">6</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">foldr</span><span·class="p">/</span><span·class="mi">6</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">table_info</span><span·class="p">/</span><span·class="mi">4</span><span·class="p">,</span><span·class="w"> | 141 | ·········</span><span·class="ss">foldl</span><span·class="p">/</span><span·class="mi">6</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">foldr</span><span·class="p">/</span><span·class="mi">6</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">table_info</span><span·class="p">/</span><span·class="mi">4</span><span·class="p">,</span><span·class="w"> |
| 142 | ·········</span><span·class="ss">first</span><span·class="p">/</span><span·class="mi">3</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">next</span><span·class="p">/</span><span·class="mi">4</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">prev</span><span·class="p">/</span><span·class="mi">4</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">last</span><span·class="p">/</span><span·class="mi">3</span><span·class="p">,</span><span·class="w"> | 142 | ·········</span><span·class="ss">first</span><span·class="p">/</span><span·class="mi">3</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">next</span><span·class="p">/</span><span·class="mi">4</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">prev</span><span·class="p">/</span><span·class="mi">4</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">last</span><span·class="p">/</span><span·class="mi">3</span><span·class="p">,</span><span·class="w"> |
| 143 | ·········</span><span·class="ss">clear_table</span><span·class="p">/</span><span·class="mi">4</span><span·class="w"> | 143 | ·········</span><span·class="ss">clear_table</span><span·class="p">/</span><span·class="mi">4</span><span·class="w"> |
| 144 | ········</span><span·class="p"·data-group-id=" | 144 | ········</span><span·class="p"·data-group-id="3485468210-3">]</span><span·class="p"·data-group-id="3485468210-2">)</span><span·class="p">.</span><span·class="w"> |
| 145 | </span><span·class="c1">%%·Callback·functions·which·provides·transparent</span><span·class="w"> | 145 | </span><span·class="c1">%%·Callback·functions·which·provides·transparent</span><span·class="w"> |
| 146 | </span><span·class="c1">%%·access·of·fragmented·tables·from·any·activity</span><span·class="w"> | 146 | </span><span·class="c1">%%·access·of·fragmented·tables·from·any·activity</span><span·class="w"> |
| 147 | </span><span·class="c1">%%·access·context.</span><span·class="w"> | 147 | </span><span·class="c1">%%·access·context.</span><span·class="w"> |
| 148 | </span><span·class="nf">lock</span><span·class="p"·data-group-id=" | 148 | </span><span·class="nf">lock</span><span·class="p"·data-group-id="3485468210-4">(</span><span·class="n">ActivityId</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Opaque</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3485468210-5">{</span><span·class="ss">table<[·...·truncated·by·diffoscope;·len:·277,·SHA:·d156f95a926ac9f9aef0669b6759d38b7ccdee9ea0dd4b1c09081cdf27fb11bd·...·]-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 149 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nf">frag_names</span><span·class="p"·data-group-id=" | 149 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nf">frag_names</span><span·class="p"·data-group-id="3485468210-6">(</span><span·class="n">Tab</span><span·class="p"·data-group-id="3485468210-6">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 150 | ········</span><span·class="p"·data-group-id=" | 150 | ········</span><span·class="p"·data-group-id="3485468210-7">[</span><span·class="n">Tab</span><span·class="p"·data-group-id="3485468210-7">]</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 151 | ············</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">lock</span><span·class="p"·data-group-id=" | 151 | ············</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">lock</span><span·class="p"·data-group-id="3485468210-8">(</span><span·class="n">ActivityId</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Opaque</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3485468210-9">{</span><span·class="ss">table<[·...·truncated·by·diffoscope;·len:·253,·SHA:·f72261a6a54a22b942f7c10c64c701273e5842f5f233e8365842160e63463ea0·...·]-8">)</span><span·class="p">;</span><span·class="w"> |
| 152 | ········</span><span·class="n">Frags</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 152 | ········</span><span·class="n">Frags</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 153 | ············</span><span·class="n">DeepNs</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 153 | ············</span><span·class="n">DeepNs</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="3485468210-10">[</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">lock</span><span·class="p"·data-group-id="3485468210-11">(</span><span·class="n">ActivityId</span><span·class="p">,</span><span·class="w">·</span><span·class="n">[·...·truncated·by·diffoscope;·len:·390,·SHA:·268cc542f70644968f31e1064b0d1a1b927d7beed0e82788024bd3397d7dafa8·...·]-11">)</span><span·class="w">·</span><span·class="p">||</span><span·class="w"> |
| 154 | ·························</span><span·class="n">F</span><span·class="w">·</span><span·class="o"><-</span><span·class="w">·</span><span·class="n">Frags</span><span·class="p"·data-group-id=" | 154 | ·························</span><span·class="n">F</span><span·class="w">·</span><span·class="o"><-</span><span·class="w">·</span><span·class="n">Frags</span><span·class="p"·data-group-id="3485468210-10">]</span><span·class="p">,</span><span·class="w"> |
| 155 | ············</span><span·class="nc">mnesia_lib</span><span·class="p">:</span><span·class="nf">uniq</span><span·class="p"·data-group-id=" | 155 | ············</span><span·class="nc">mnesia_lib</span><span·class="p">:</span><span·class="nf">uniq</span><span·class="p"·data-group-id="3485468210-13">(</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">append</span><span·class="p"·data-group-id="3485468210-14">(</span><span·class="n">DeepNs</span><span·class="p"·data-group-id="3485468210-14">)</span><span·class="[·...·truncated·by·diffoscope;·len:·28,·SHA:·efee22dd33a9160c0afe8bd6856af5795ad60d2f53ab81804a68534b209e05ed·...·]-13">)</span><span·class="w"> |
| 156 | ····</span><span·class="k">end</span><span·class="p">;</span><span·class="w"> | 156 | ····</span><span·class="k">end</span><span·class="p">;</span><span·class="w"> |
| 157 | </span><span·class="nf">lock</span><span·class="p"·data-group-id=" | 157 | </span><span·class="nf">lock</span><span·class="p"·data-group-id="3485468210-15">(</span><span·class="n">ActivityId</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Opaque</span><span·class="p">,</span><span·class="w">·</span><span·class="n">LockItem</span><span·class="p">,</span><span·class="w">·</s[·...·truncated·by·diffoscope;·len:·76,·SHA:·e708302806edf76bd20d894c1b7d01a6c2462926bdb5eed1488064f5c039f71e·...·]-15">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 158 | ····</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">lock</span><span·class="p"·data-group-id=" | 158 | ····</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">lock</span><span·class="p"·data-group-id="3485468210-16">(</span><span·class="n">ActivityId</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Opaque</span><span·class="p">,</span><span·class="w">·</span><span·class="n">LockItem</span><span·class="p">,</span><span·class="w">·</s[·...·truncated·by·diffoscope;·len:·76,·SHA:·e708302806edf76bd20d894c1b7d01a6c2462926bdb5eed1488064f5c039f71e·...·]-16">)</span><span·class="p">.</span><span·class="w"> |
| 159 | </span><span·class="nf">write</span><span·class="p"·data-group-id=" | 159 | </span><span·class="nf">write</span><span·class="p"·data-group-id="3485468210-17">(</span><span·class="n">ActivityId</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Opaque</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Tab</span><span·class="p">,</span><span·class="w">·</span><[·...·truncated·by·diffoscope;·len:·145,·SHA:·ef02d0b66354f7e61b4e10c68156ef17d7374da4387fea9d4319ff513c8ceba7·...·]-17">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 160 | ····</span><span·class="n">Frag</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">record_to_frag_name</span><span·class="p"·data-group-id=" | 160 | ····</span><span·class="n">Frag</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">record_to_frag_name</span><span·class="p"·data-group-id="3485468210-18">(</span><span·class="n">Tab</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Rec</span><span·class="p"·data-group-id="3485468210-18">)</span><span·class="p">,</span><span·class="w"> |
| 161 | ····</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">write</span><span·class="p"·data-group-id=" | 161 | ····</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">write</span><span·class="p"·data-group-id="3485468210-19">(</span><span·class="n">ActivityId</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Opaque</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Frag</span><span·class="p">,</span><span·class="w">·</span>[·...·truncated·by·diffoscope;·len:·146,·SHA:·264af48d72b0c94d95b36fab2d2d6ec5c1ed7e60b86d36e7f04d00ade9634bc7·...·]-19">)</span><span·class="p">.</span><span·class="w"> |
| 162 | </span><span·class="nf">delete</span><span·class="p"·data-group-id=" | 162 | </span><span·class="nf">delete</span><span·class="p"·data-group-id="3485468210-20">(</span><span·class="n">ActivityId</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Opaque</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Tab</span><span·class="p">,</span><span·class="w">·</span><[·...·truncated·by·diffoscope;·len:·145,·SHA:·61af6b15665cb2ff51798be59ae77b6ece415d18cd37ede139b6b4c5cd69e010·...·]-20">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 163 | ····</span><span·class="n">Frag</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">key_to_frag_name</span><span·class="p"·data-group-id=" | 163 | ····</span><span·class="n">Frag</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">key_to_frag_name</span><span·class="p"·data-group-id="3485468210-21">(</span><span·class="n">Tab</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Key</span><span·class="p"·data-group-id="3485468210-21">)</span><span·class="p">,</span><span·class="w"> |
| 164 | ····</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">delete</span><span·class="p"·data-group-id=" | 164 | ····</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">delete</span><span·class="p"·data-group-id="3485468210-22">(</span><span·class="n">ActivityId</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Opaque</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Frag</span><span·class="p">,</span><span·class="w">·</span>[·...·truncated·by·diffoscope;·len:·146,·SHA:·29869fc348d945be7fc5c491ff9197268f998873b40bce02ce75f2c46fa0fe8c·...·]-22">)</span><span·class="p">.</span><span·class="w"> |
| 165 | </span><span·class="nf">delete_object</span><span·class="p"·data-group-id=" | 165 | </span><span·class="nf">delete_object</span><span·class="p"·data-group-id="3485468210-23">(</span><span·class="n">ActivityId</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Opaque</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Tab</span><span·class="p">,</span><span·class="w">·</span><[·...·truncated·by·diffoscope;·len:·145,·SHA:·ef02d0b66354f7e61b4e10c68156ef17d7374da4387fea9d4319ff513c8ceba7·...·]-23">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 166 | ····</span><span·class="n">Frag</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">record_to_frag_name</span><span·class="p"·data-group-id=" | 166 | ····</span><span·class="n">Frag</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">record_to_frag_name</span><span·class="p"·data-group-id="3485468210-24">(</span><span·class="n">Tab</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Rec</span><span·class="p"·data-group-id="3485468210-24">)</span><span·class="p">,</span><span·class="w"> |
| 167 | ····</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">delete_object</span><span·class="p"·data-group-id=" | 167 | ····</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">delete_object</span><span·class="p"·data-group-id="3485468210-25">(</span><span·class="n">ActivityId</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Opaque</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Frag</span><span·class="p">,</span><span·class="w">·</span>[·...·truncated·by·diffoscope;·len:·146,·SHA:·264af48d72b0c94d95b36fab2d2d6ec5c1ed7e60b86d36e7f04d00ade9634bc7·...·]-25">)</span><span·class="p">.</span><span·class="w"> |
| 168 | </span><span·class="nf">read</span><span·class="p"·data-group-id=" | 168 | </span><span·class="nf">read</span><span·class="p"·data-group-id="3485468210-26">(</span><span·class="n">ActivityId</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Opaque</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Tab</span><span·class="p">,</span><span·class="w">·</span><[·...·truncated·by·diffoscope;·len:·145,·SHA:·61af6b15665cb2ff51798be59ae77b6ece415d18cd37ede139b6b4c5cd69e010·...·]-26">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 169 | ····</span><span·class="n">Frag</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">key_to_frag_name</span><span·class="p"·data-group-id=" | 169 | ····</span><span·class="n">Frag</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">key_to_frag_name</span><span·class="p"·data-group-id="3485468210-27">(</span><span·class="n">Tab</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Key</span><span·class="p"·data-group-id="3485468210-27">)</span><span·class="p">,</span><span·class="w"> |
| 170 | ····</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">read</span><span·class="p"·data-group-id=" | 170 | ····</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">read</span><span·class="p"·data-group-id="3485468210-28">(</span><span·class="n">ActivityId</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Opaque</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Frag</span><span·class="p">,</span><span·class="w">·</span>[·...·truncated·by·diffoscope;·len:·146,·SHA:·29869fc348d945be7fc5c491ff9197268f998873b40bce02ce75f2c46fa0fe8c·...·]-28">)</span><span·class="p">.</span><span·class="w"> |
| 171 | </span><span·class="nf">match_object</span><span·class="p"·data-group-id=" | 171 | </span><span·class="nf">match_object</span><span·class="p"·data-group-id="3485468210-29">(</span><span·class="n">ActivityId</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Opaque</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Tab</span><span·class="p">,</span><span·class="w">·</span><[·...·truncated·by·diffoscope;·len:·149,·SHA:·d60709d0901ddad1810244cbd7d2471bfff212a2285e7ada1046a17e74a97050·...·]-29">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 172 | ····</span><span·class="n">MatchSpec</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 172 | ····</span><span·class="n">MatchSpec</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="3485468210-30">[</span><span·class="p"·data-group-id="3485468210-31">{</span><span·class="n">HeadPat</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3485468210-32">[</span><span·class="p"·data-group-id="3485468210-32">][·...·truncated·by·diffoscope;·len:·294,·SHA:·125b41cb26749318bbcd52ede508ebd1967d6b950f8a561386a8a5906f6f968a·...·]-30">]</span><span·class="p">,</span><span·class="w"> |
| 173 | ····</span><span·class="nf">select</span><span·class="p"·data-group-id=" | 173 | ····</span><span·class="nf">select</span><span·class="p"·data-group-id="3485468210-34">(</span><span·class="n">ActivityId</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Opaque</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Tab</span><span·class="p">,</span><span·class="w">·</span><[·...·truncated·by·diffoscope;·len:·151,·SHA:·58a6d185e46c768b68eb98daed8a5ea265885d96c89043d27c30861779e4c32f·...·]-34">)</span><span·class="p">.</span><span·class="w"> |
| 174 | </span><span·class="nf">select</span><span·class="p"·data-group-id=" | 174 | </span><span·class="nf">select</span><span·class="p"·data-group-id="3485468210-35">(</span><span·class="n">ActivityId</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Opaque</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Tab</span><span·class="p">,</span><span·class="w">·</span><[·...·truncated·by·diffoscope;·len:·151,·SHA:·58a6d185e46c768b68eb98daed8a5ea265885d96c89043d27c30861779e4c32f·...·]-35">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 175 | ····</span><span·class="nf">do_select</span><span·class="p"·data-group-id=" | 175 | ····</span><span·class="nf">do_select</span><span·class="p"·data-group-id="3485468210-36">(</span><span·class="n">ActivityId</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Opaque</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Tab</span><span·class="p">,</span><span·class="w">·</span><[·...·truncated·by·diffoscope;·len:·151,·SHA:·58a6d185e46c768b68eb98daed8a5ea265885d96c89043d27c30861779e4c32f·...·]-36">)</span><span·class="p">.</span><span·class="w"> |
| 176 | </span><span·class="nf">select</span><span·class="p"·data-group-id=" | 176 | </span><span·class="nf">select</span><span·class="p"·data-group-id="3485468210-37">(</span><span·class="n">ActivityId</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Opaque</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Tab</span><span·class="p">,</span><span·class="w">·</span><[·...·truncated·by·diffoscope;·len:·227,·SHA:·55b835c58cf6778a869e2e8e9cdcc1049bd375ff338990f633f7a1df74684a86·...·]-37">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 177 | ····</span><span·class="nf">init_select</span><span·class="p"·data-group-id=" | 177 | ····</span><span·class="nf">init_select</span><span·class="p"·data-group-id="3485468210-38">(</span><span·class="n">ActivityId</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Opaque</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Tab</span><span·class="p">,</span><span·class="w">·</span><[·...·truncated·by·diffoscope;·len:·227,·SHA:·55b835c58cf6778a869e2e8e9cdcc1049bd375ff338990f633f7a1df74684a86·...·]-38">)</span><span·class="p">.</span><span·class="w"> |
| 178 | </span><span·class="nf">select_cont</span><span·class="p"·data-group-id=" | 178 | </span><span·class="nf">select_cont</span><span·class="p"·data-group-id="3485468210-39">(</span><span·class="p">_</span><span·class="n">Tid</span><span·class="p">,</span><span·class="p">_</span><span·class="p">,</span><span·class="p"·data-group-id="3485468210-40">{</span><span·class="ss">frag_cont</span><span·class="p">,</span>[·...·truncated·by·diffoscope;·len:·370,·SHA:·934029c677ff659b0ea58bf387998da919a83e556db8894b99638694a628bbdb·...·]-39">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">'$end_of_table'</span><span·class="p">;</span><span·class="w"> |
| 179 | </span><span·class="nf">select_cont</span><span·class="p"·data-group-id=" | 179 | </span><span·class="nf">select_cont</span><span·class="p"·data-group-id="3485468210-42">(</span><span·class="n">Tid</span><span·class="p">,</span><span·class="n">Ts</span><span·class="p">,</span><span·class="p"·data-group-id="3485468210-43">{</span><span·class="ss">frag_cont</span><span·class="p">,</span><span·class="w">·</span[·...·truncated·by·diffoscope;·len:·637,·SHA:·2ec33530da13d034f15e317bac71a8caf4d139a7d65a3a090d8ce21665c2ab43·...·]-42">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 180 | ····</span><span·class="p"·data-group-id=" | 180 | ····</span><span·class="p"·data-group-id="3485468210-46">{</span><span·class="n">Spec</span><span·class="p">,</span><span·class="n">LockKind</span><span·class="p">,</span><span·class="n">Limit</span><span·class="p"·data-group-id="3485468210-46">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">Args</span><span·class="p">,</span><span·class="w"> |
| 181 | ····</span><span·class="n">InitFun</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id=" | 181 | ····</span><span·class="n">InitFun</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id="3485468210-47">(</span><span·class="n">FixedSpec</span><span·class="p"·data-group-id="3485468210-47">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">[·...·truncated·by·diffoscope;·len:·352,·SHA:·3640cb50f291de0931233a2e838d410e042faa97e914a1950ec1483a7f938f1a·...·]-48">)</span><span·class="w">·</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> |
| 182 | ····</span><span·class="n">Res</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">fun_select</span><span·class="p"·data-group-id=" | 182 | ····</span><span·class="n">Res</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">fun_select</span><span·class="p"·data-group-id="3485468210-49">(</span><span·class="n">Tid</span><span·class="p">,</span><span·class="n">Ts</span><span·class="p">,</span><span·class="n">Tab</span><span·class="p">,</span><span·class="n">Spec</span><span·class="p">,</span><span·class="n">LockKind</span><s[·...·truncated·by·diffoscope;·len:·297,·SHA:·ea3ed0cd8e84f38138dfe003dcdb671b4410023294dfdef80079a4056cbcba09·...·]-49">)</span><span·class="p">,</span><span·class="w"> |
| 183 | ····</span><span·class="nf">frag_sel_cont</span><span·class="p"·data-group-id=" | 183 | ····</span><span·class="nf">frag_sel_cont</span><span·class="p"·data-group-id="3485468210-50">(</span><span·class="n">Res</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Rest</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Args</span><span·class="p"·data-group-id="3485468210-50">)</span><span·class="p">;</span><span·class="w"> |
| 184 | </span><span·class="nf">select_cont</span><span·class="p"·data-group-id=" | 184 | </span><span·class="nf">select_cont</span><span·class="p"·data-group-id="3485468210-51">(</span><span·class="n">Tid</span><span·class="p">,</span><span·class="n">Ts</span><span·class="p">,</span><span·class="p"·data-group-id="3485468210-52">{</span><span·class="ss">frag_cont</span><span·class="p">,</span><span·class="w">·</span[·...·truncated·by·diffoscope;·len:·273,·SHA:·88b89f6884ad37c2d5daa37797dc35ac4c1acb401275296a26cd1da9be59b35f·...·]-51">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 185 | ····</span><span·class="nf">frag_sel_cont</span><span·class="p"·data-group-id=" | 185 | ····</span><span·class="nf">frag_sel_cont</span><span·class="p"·data-group-id="3485468210-53">(</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">select_cont</span><span·class="p"·data-group-id="3485468210-54">(</span><span·class="n">Tid</span><span·class="p">,</span><span·class="n">Ts</span><span·class="p"[·...·truncated·by·diffoscope;·len:·233,·SHA:·4a225634e8d73759a7892fef81244a85736674b22d4f7cbdf31baff9ad1f2747·...·]-53">)</span><span·class="p">;</span><span·class="w"> |
| 186 | </span><span·class="nf">select_cont</span><span·class="p"·data-group-id=" | 186 | </span><span·class="nf">select_cont</span><span·class="p"·data-group-id="3485468210-55">(</span><span·class="n">Tid</span><span·class="p">,</span><span·class="n">Ts</span><span·class="p">,</span><span·class="n">Else</span><span·class="p"·data-group-id="3485468210-55">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 187 | ····</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">select_cont</span><span·class="p"·data-group-id=" | 187 | ····</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">select_cont</span><span·class="p"·data-group-id="3485468210-56">(</span><span·class="n">Tid</span><span·class="p">,</span><span·class="n">Ts</span><span·class="p">,</span><span·class="n">Else</span><span·class="p"·data-group-id="3485468210-56">)</span><span·class="p">.</span><span·class="w"> |
| 188 | </span><span·class="nf">all_keys</span><span·class="p"·data-group-id=" | 188 | </span><span·class="nf">all_keys</span><span·class="p"·data-group-id="3485468210-57">(</span><span·class="n">ActivityId</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Opaque</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Tab</span><span·class="p">,</span><span·class="w">·</span><[·...·truncated·by·diffoscope;·len:·71,·SHA:·88cfd659b0cbb48ca4970dd34449ac36cca8099e8d376be8b7e462badf37ccc0·...·]-57">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 189 | ····</span><span·class="n">Match</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 189 | ····</span><span·class="n">Match</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="3485468210-58">[</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">all_keys</span><span·class="p"·data-group-id="3485468210-59">(</span><span·class="n">ActivityId</span><span·class="p">,</span><span·class="w">·</span><span·class=[·...·truncated·by·diffoscope;·len:·212,·SHA:·364a9f6e693ae94a7ab2e3984fdb1a5fa430a39db946bcc203a1527985aa7316·...·]-59">)</span><span·class="w"> |
| 190 | ·············</span><span·class="p">||</span><span·class="w">·</span><span·class="n">Frag</span><span·class="w">·</span><span·class="o"><-</span><span·class="w">·</span><span·class="nf">frag_names</span><span·class="p"·data-group-id=" | 190 | ·············</span><span·class="p">||</span><span·class="w">·</span><span·class="n">Frag</span><span·class="w">·</span><span·class="o"><-</span><span·class="w">·</span><span·class="nf">frag_names</span><span·class="p"·data-group-id="3485468210-60">(</span><span·class="n">Tab</span><span·class="p"·data-group-id="3485468210-60">)</span><span·class="p"·data-group-id="3485468210-58">]</span><span·class="p">,</span><span·class="w"> |
| 191 | ····</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">append</span><span·class="p"·data-group-id=" | 191 | ····</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">append</span><span·class="p"·data-group-id="3485468210-61">(</span><span·class="n">Match</span><span·class="p"·data-group-id="3485468210-61">)</span><span·class="p">.</span><span·class="w"> |
| 192 | </span><span·class="nf">clear_table</span><span·class="p"·data-group-id=" | 192 | </span><span·class="nf">clear_table</span><span·class="p"·data-group-id="3485468210-62">(</span><span·class="n">ActivityId</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Opaque</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Tab</span><span·class="p">,</span><span·class="w">·</span><[·...·truncated·by·diffoscope;·len:·66,·SHA:·5eea69a2277941f5eb0a667d0ef3cefa5e29e3763a3bfd8f7a02fe8c02c73497·...·]-62">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 193 | ····</span><span·class="p"·data-group-id=" | 193 | ····</span><span·class="p"·data-group-id="3485468210-63">[</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">clear_table</span><span·class="p"·data-group-id="3485468210-64">(</span><span·class="n">ActivityId</span><span·class="p">,</span><span·class="w">·</span><span·cla[·...·truncated·by·diffoscope;·len:·609,·SHA:·a2df7b3e314fcc4eca95ba698dc24156b33c7e3302149f722f8d48dab82e5f4f·...·]-63">]</span><span·class="p">,</span><span·class="w"> |
| 194 | ····</span><span·class="ss">ok</span><span·class="p">.</span><span·class="w"> | 194 | ····</span><span·class="ss">ok</span><span·class="p">.</span><span·class="w"> |
| 195 | </span><span·class="nf">index_match_object</span><span·class="p"·data-group-id=" | 195 | </span><span·class="nf">index_match_object</span><span·class="p"·data-group-id="3485468210-66">(</span><span·class="n">ActivityId</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Opaque</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Tab</span><span·class="p">,</span><span·class="w">·</span><[·...·truncated·by·diffoscope;·len:·220,·SHA:·646f6866ecda765a7085b22418561c152e72061eddfbd290f478eb4932a64aac·...·]-66">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 196 | ····</span><span·class="n">Match</span><span·class="w">·</span><span·class="o">=</span><span·class="w"> | 196 | ····</span><span·class="n">Match</span><span·class="w">·</span><span·class="o">=</span><span·class="w"> |
| 197 | ········</span><span·class="p"·data-group-id=" | 197 | ········</span><span·class="p"·data-group-id="3485468210-67">[</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">index_match_object</span><span·class="p"·data-group-id="3485468210-68">(</span><span·class="n">ActivityId</span><span·class="p">,</span><span·class="w">·</span><s[·...·truncated·by·diffoscope;·len:·371,·SHA:·2fb8a5e7b7c3d24768d5a726be98ba2abeaa0c87e0c7e094901c62d672ca3f07·...·]-68">)</span><span·class="w"> |
| 198 | ·········</span><span·class="p">||</span><span·class="w">·</span><span·class="n">Frag</span><span·class="w">·</span><span·class="o"><-</span><span·class="w">·</span><span·class="nf">frag_names</span><span·class="p"·data-group-id=" | 198 | ·········</span><span·class="p">||</span><span·class="w">·</span><span·class="n">Frag</span><span·class="w">·</span><span·class="o"><-</span><span·class="w">·</span><span·class="nf">frag_names</span><span·class="p"·data-group-id="3485468210-69">(</span><span·class="n">Tab</span><span·class="p"·data-group-id="3485468210-69">)</span><span·class="p"·data-group-id="3485468210-67">]</span><span·class="p">,</span><span·class="w"> |
| 199 | ····</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">append</span><span·class="p"·data-group-id=" | 199 | ····</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">append</span><span·class="p"·data-group-id="3485468210-70">(</span><span·class="n">Match</span><span·class="p"·data-group-id="3485468210-70">)</span><span·class="p">.</span><span·class="w"> |
| 200 | </span><span·class="nf">index_read</span><span·class="p"·data-group-id=" | 200 | </span><span·class="nf">index_read</span><span·class="p"·data-group-id="3485468210-71">(</span><span·class="n">ActivityId</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Opaque</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Tab</span><span·class="p">,</span><span·class="w">·</span><[·...·truncated·by·diffoscope;·len:·220,·SHA:·6522c7062652389b5d9b1ee13bcc2f548eb78647378b944ac235b284448e0029·...·]-71">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 201 | ····</span><span·class="n">Match</span><span·class="w">·</span><span·class="o">=</span><span·class="w"> | 201 | ····</span><span·class="n">Match</span><span·class="w">·</span><span·class="o">=</span><span·class="w"> |
| 202 | ········</span><span·class="p"·data-group-id=" | 202 | ········</span><span·class="p"·data-group-id="3485468210-72">[</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">index_read</span><span·class="p"·data-group-id="3485468210-73">(</span><span·class="n">ActivityId</span><span·class="p">,</span><span·class="w">·</span><span·clas[·...·truncated·by·diffoscope;·len:·363,·SHA:·1466cb5af15b6b56664a90ab86fca37de49f4cbee208f0c3d5c5586c442980ef·...·]-73">)</span><span·class="w"> |
| 203 | ·········</span><span·class="p">||</span><span·class="w">·</span><span·class="n">Frag</span><span·class="w">·</span><span·class="o"><-</span><span·class="w">·</span><span·class="nf">frag_names</span><span·class="p"·data-group-id=" | 203 | ·········</span><span·class="p">||</span><span·class="w">·</span><span·class="n">Frag</span><span·class="w">·</span><span·class="o"><-</span><span·class="w">·</span><span·class="nf">frag_names</span><span·class="p"·data-group-id="3485468210-74">(</span><span·class="n">Tab</span><span·class="p"·data-group-id="3485468210-74">)</span><span·class="p"·data-group-id="3485468210-72">]</span><span·class="p">,</span><span·class="w"> |
| 204 | ····</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">append</span><span·class="p"·data-group-id=" | 204 | ····</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">append</span><span·class="p"·data-group-id="3485468210-75">(</span><span·class="n">Match</span><span·class="p"·data-group-id="3485468210-75">)</span><span·class="p">.</span><span·class="w"> |
| 205 | </span><span·class="nf">foldl</span><span·class="p"·data-group-id=" | 205 | </span><span·class="nf">foldl</span><span·class="p"·data-group-id="3485468210-76">(</span><span·class="n">ActivityId</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Opaque</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Fun</span><span·class="p">,</span><span·class="w">·</span><[·...·truncated·by·diffoscope;·len:·219,·SHA:·211ecdf57c745349127ea9d33bc1237fe62e6a1e46e55dd6704327dfdf40e23f·...·]-76">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 206 | ····</span><span·class="n">Fun2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id=" | 206 | ····</span><span·class="n">Fun2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id="3485468210-77">(</span><span·class="n">Frag</span><span·class="p">,</span><span·class="w">·</span><span·class="n">A</span><span·class="p"·data-group-id="3485468210-77">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 207 | ···················</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">foldl</span><span·class="p"·data-group-id=" | 207 | ···················</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">foldl</span><span·class="p"·data-group-id="3485468210-78">(</span><span·class="n">ActivityId</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Opaque</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Fun</span><span·class="p">,</span><span·class="w">·</span><[·...·truncated·by·diffoscope;·len:·218,·SHA:·713746174f8c967d4e66862cb52803028700f680cb81104d9a2e09eb72e3e52b·...·]-78">)</span><span·class="w"> |
| 208 | ···········</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> | 208 | ···········</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> |
| 209 | ····</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">foldl</span><span·class="p"·data-group-id=" | 209 | ····</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">foldl</span><span·class="p"·data-group-id="3485468210-79">(</span><span·class="n">Fun2</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Acc</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">frag_names</span><span·class="p"·data-group-id="3485468210-80">(</s[·...·truncated·by·diffoscope;·len:·125,·SHA:·39609e60b4cc11f4b6eef37506092c33ea8d255fa262c7d07350c7015a85cbd4·...·]-79">)</span><span·class="p">.</span><span·class="w"> |
| 210 | </span><span·class="nf">foldr</span><span·class="p"·data-group-id=" | 210 | </span><span·class="nf">foldr</span><span·class="p"·data-group-id="3485468210-81">(</span><span·class="n">ActivityId</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Opaque</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Fun</span><span·class="p">,</span><span·class="w">·</span><[·...·truncated·by·diffoscope;·len:·219,·SHA:·211ecdf57c745349127ea9d33bc1237fe62e6a1e46e55dd6704327dfdf40e23f·...·]-81">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 211 | ····</span><span·class="n">Fun2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id=" | 211 | ····</span><span·class="n">Fun2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id="3485468210-82">(</span><span·class="n">Frag</span><span·class="p">,</span><span·class="w">·</span><span·class="n">A</span><span·class="p"·data-group-id="3485468210-82">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 212 | ···················</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">foldr</span><span·class="p"·data-group-id=" | 212 | ···················</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">foldr</span><span·class="p"·data-group-id="3485468210-83">(</span><span·class="n">ActivityId</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Opaque</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Fun</span><span·class="p">,</span><span·class="w">·</span><[·...·truncated·by·diffoscope;·len:·218,·SHA:·713746174f8c967d4e66862cb52803028700f680cb81104d9a2e09eb72e3e52b·...·]-83">)</span><span·class="w"> |
| 213 | ···········</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> | 213 | ···········</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> |
| 214 | ····</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">foldr</span><span·class="p"·data-group-id=" | 214 | ····</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">foldr</span><span·class="p"·data-group-id="3485468210-84">(</span><span·class="n">Fun2</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Acc</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">frag_names</span><span·class="p"·data-group-id="3485468210-85">(</s[·...·truncated·by·diffoscope;·len:·125,·SHA:·e52cbcf1317ac837399f909317a493a053b9ac995b280b74fa1cace28dd31d7e·...·]-84">)</span><span·class="p">.</span><span·class="w"> |
| 215 | </span><span·class="nf">table_info</span><span·class="p"·data-group-id=" | 215 | </span><span·class="nf">table_info</span><span·class="p"·data-group-id="3485468210-86">(</span><span·class="n">ActivityId</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Opaque</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3485468210-87">{</span><span·class="n">Tab</[·...·truncated·by·diffoscope;·len:·249,·SHA:·55a9b1f0a78ef357f4b0309c2bb97801d215e7576a10257417785c58f6c941f9·...·]-86">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 216 | ····</span><span·class="n">Frag</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">key_to_frag_name</span><span·class="p"·data-group-id=" | 216 | ····</span><span·class="n">Frag</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">key_to_frag_name</span><span·class="p"·data-group-id="3485468210-88">(</span><span·class="n">Tab</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Key</span><span·class="p"·data-group-id="3485468210-88">)</span><span·class="p">,</span><span·class="w"> |
| 217 | ····</span><span·class="nf">table_info2</span><span·class="p"·data-group-id=" | 217 | ····</span><span·class="nf">table_info2</span><span·class="p"·data-group-id="3485468210-89">(</span><span·class="n">ActivityId</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Opaque</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Tab</span><span·class="p">,</span><span·class="w">·</span><[·...·truncated·by·diffoscope;·len:·142,·SHA:·9602021129c712870c8427ec06c2e86451e1aad772e0989a798e9082ee20d71d·...·]-89">)</span><span·class="p">;</span><span·class="w"> |
| 218 | </span><span·class="nf">table_info</span><span·class="p"·data-group-id=" | 218 | </span><span·class="nf">table_info</span><span·class="p"·data-group-id="3485468210-90">(</span><span·class="n">ActivityId</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Opaque</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Tab</span><span·class="p">,</span><span·class="w">·</span><[·...·truncated·by·diffoscope;·len:·67,·SHA:·c6089d0422cb47d1a73b5f023d3e2758a54f64d7d61af083bc4770786a1052e2·...·]-90">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 219 | ····</span><span·class="nf">table_info2</span><span·class="p"·data-group-id=" | 219 | ····</span><span·class="nf">table_info2</span><span·class="p"·data-group-id="3485468210-91">(</span><span·class="n">ActivityId</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Opaque</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Tab</span><span·class="p">,</span><span·class="w">·</span><[·...·truncated·by·diffoscope;·len:·141,·SHA:·c9466d911b3ea35c915a33bdf7f7c1558470f8be9ee8b518d1ac1542030ec372·...·]-91">)</span><span·class="p">.</span><span·class="w"> |
| 220 | </span><span·class="nf">table_info2</span><span·class="p"·data-group-id=" | 220 | </span><span·class="nf">table_info2</span><span·class="p"·data-group-id="3485468210-92">(</span><span·class="n">ActivityId</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Opaque</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Tab</span><span·class="p">,</span><span·class="w">·</span><[·...·truncated·by·diffoscope;·len:·142,·SHA:·9602021129c712870c8427ec06c2e86451e1aad772e0989a798e9082ee20d71d·...·]-92">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 221 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="n">Item</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> | 221 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="n">Item</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 222 | ········</span><span·class="nb">size</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 222 | ········</span><span·class="nb">size</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 223 | ············</span><span·class="n">SumFun</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id=" | 223 | ············</span><span·class="n">SumFun</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id="3485468210-93">(</span><span·class="p"·data-group-id="3485468210-94">{</span><span·class="p">_</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Size</span><span·class="p"·data-group-id="3485468210-94">}</span><span·class="p">,</span><s[·...·truncated·by·diffoscope;·len:·89,·SHA:·82f213d12eb207122e210e07a8687582856efe993491b096ddb718e832c470e6·...·]-93">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">Acc</span><span·class="w">·</span><span·class="o">+</span><span·class="w">·</span><span·class="n">Size</span><span·class="w">·</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> |
| 224 | ············</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">foldl</span><span·class="p"·data-group-id=" | 224 | ············</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">foldl</span><span·class="p"·data-group-id="3485468210-95">(</span><span·class="n">SumFun</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">0</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">frag_size</span><span·class="p"·data-group-id="3485468210-96">(</s[·...·truncated·by·diffoscope;·len:·283,·SHA:·2dd417dce4b9ad5063e70adfcf16d4262cbb17ef14c9c5a420373648ad880da6·...·]-95">)</span><span·class="p">;</span><span·class="w"> |
| 225 | ········</span><span·class="nb">memory</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 225 | ········</span><span·class="nb">memory</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 226 | ············</span><span·class="n">SumFun</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id=" | 226 | ············</span><span·class="n">SumFun</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id="3485468210-97">(</span><span·class="p"·data-group-id="3485468210-98">{</span><span·class="p">_</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Size</span><span·class="p"·data-group-id="3485468210-98">}</span><span·class="p">,</span><s[·...·truncated·by·diffoscope;·len:·89,·SHA:·82f213d12eb207122e210e07a8687582856efe993491b096ddb718e832c470e6·...·]-97">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">Acc</span><span·class="w">·</span><span·class="o">+</span><span·class="w">·</span><span·class="n">Size</span><span·class="w">·</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> |
| 227 | ············</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">foldl</span><span·class="p"·data-group-id=" | 227 | ············</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">foldl</span><span·class="p"·data-group-id="3485468210-99">(</span><span·class="n">SumFun</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">0</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">frag_memory</span><span·class="p"·data-group-id="3485468210-100">([·...·truncated·by·diffoscope;·len:·287,·SHA:·c891b36ebf882ff6deac9a9b6eb9a88e3a22dbd39183a57f56ba6e48748cc3a7·...·]-99">)</span><span·class="p">;</span><span·class="w"> |
| 228 | ········</span><span·class="ss">base_table</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 228 | ········</span><span·class="ss">base_table</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 229 | ············</span><span·class="nf">lookup_prop</span><span·class="p"·data-group-id=" | 229 | ············</span><span·class="nf">lookup_prop</span><span·class="p"·data-group-id="3485468210-101">(</span><span·class="n">Tab</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">base_table</span><span·class="p"·data-group-id="3485468210-101">)</span><span·class="p">;</span><span·class="w"> |
| 230 | ········</span><span·class="ss">node_pool</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 230 | ········</span><span·class="ss">node_pool</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 231 | ············</span><span·class="nf">lookup_prop</span><span·class="p"·data-group-id=" | 231 | ············</span><span·class="nf">lookup_prop</span><span·class="p"·data-group-id="3485468210-102">(</span><span·class="n">Tab</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">node_pool</span><span·class="p"·data-group-id="3485468210-102">)</span><span·class="p">;</span><span·class="w"> |
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| Offset 127, 148 lines modified | Offset 127, 148 lines modified | ||
| 127 | <h2·id="mnesia_frag_hash-callback-behavior"·class="section-heading"> | 127 | <h2·id="mnesia_frag_hash-callback-behavior"·class="section-heading"> |
| 128 | ··<a·href="#mnesia_frag_hash-callback-behavior"·class="hover-link"> | 128 | ··<a·href="#mnesia_frag_hash-callback-behavior"·class="hover-link"> |
| 129 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 129 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 130 | ··</a> | 130 | ··</a> |
| 131 | ··<span·class="text">mnesia_frag_hash·Callback·Behavior</span> | 131 | ··<span·class="text">mnesia_frag_hash·Callback·Behavior</span> |
| 132 | </h2> | 132 | </h2> |
| 133 | <pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="2 | 133 | <pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="2188024754-1">(</span><span·class="ss">mnesia_frag_hash</span><span·class="p"·data-group-id="2188024754-1">)</span><span·class="p">.</span><span·class="w"> |
| 134 | </span><span·class="p">-</span><span·class="na">compile</span><span·class="p"·data-group-id="2 | 134 | </span><span·class="p">-</span><span·class="na">compile</span><span·class="p"·data-group-id="2188024754-2">(</span><span·class="p"·data-group-id="2188024754-3">[</span><span·class="p"·data-group-id="2188024754-4">{</span><span·class="ss">nowarn_deprecated_function</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="[·...·truncated·by·diffoscope;·len:·460,·SHA:·e607b6ac4f9f16e258cddd1feea29a5a74ca42fcb85a36f12ab3e34f1c4f22e8·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 135 | </span><span·class="c1">%%·Fragmented·Table·Hashing·callback·functions</span><span·class="w"> | 135 | </span><span·class="c1">%%·Fragmented·Table·Hashing·callback·functions</span><span·class="w"> |
| 136 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="2 | 136 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="2188024754-7">(</span><span·class="p"·data-group-id="2188024754-8">[</span><span·class="w"> |
| 137 | ·········</span><span·class="ss">init_state</span><span·class="p">/</span><span·class="mi">2</span><span·class="p">,</span><span·class="w"> | 137 | ·········</span><span·class="ss">init_state</span><span·class="p">/</span><span·class="mi">2</span><span·class="p">,</span><span·class="w"> |
| 138 | ·········</span><span·class="ss">add_frag</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w"> | 138 | ·········</span><span·class="ss">add_frag</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w"> |
| 139 | ·········</span><span·class="ss">del_frag</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w"> | 139 | ·········</span><span·class="ss">del_frag</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w"> |
| 140 | ·········</span><span·class="ss">key_to_frag_number</span><span·class="p">/</span><span·class="mi">2</span><span·class="p">,</span><span·class="w"> | 140 | ·········</span><span·class="ss">key_to_frag_number</span><span·class="p">/</span><span·class="mi">2</span><span·class="p">,</span><span·class="w"> |
| 141 | ·········</span><span·class="ss">match_spec_to_frag_numbers</span><span·class="p">/</span><span·class="mi">2</span><span·class="w"> | 141 | ·········</span><span·class="ss">match_spec_to_frag_numbers</span><span·class="p">/</span><span·class="mi">2</span><span·class="w"> |
| 142 | ········</span><span·class="p"·data-group-id="2 | 142 | ········</span><span·class="p"·data-group-id="2188024754-8">]</span><span·class="p"·data-group-id="2188024754-7">)</span><span·class="p">.</span></code></pre><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id="3994131873-1">(</span><span·class="ss">hash_state</span><span·class="p">,</span><span·class="w"> |
| 143 | ····</span><span·class="p"·data-group-id="3 | 143 | ····</span><span·class="p"·data-group-id="3994131873-2">{</span><span·class="ss">n_fragments</span><span·class="p">,</span><span·class="w"> |
| 144 | ·····</span><span·class="ss">next_n_to_split</span><span·class="p">,</span><span·class="w"> | 144 | ·····</span><span·class="ss">next_n_to_split</span><span·class="p">,</span><span·class="w"> |
| 145 | ·····</span><span·class="ss">n_doubles</span><span·class="p">,</span><span·class="w"> | 145 | ·····</span><span·class="ss">n_doubles</span><span·class="p">,</span><span·class="w"> |
| 146 | ·····</span><span·class="ss">function</span><span·class="p"·data-group-id="3 | 146 | ·····</span><span·class="ss">function</span><span·class="p"·data-group-id="3994131873-2">}</span><span·class="p"·data-group-id="3994131873-1">)</span><span·class="p">.</span><span·class="w"> |
| 147 | </span><span·class="c1">%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%</span><span·class="w"> | 147 | </span><span·class="c1">%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%</span><span·class="w"> |
| 148 | </span><span·class="p">-</span><span·class="na">spec</span><span·class="w">·</span><span·class="nf">init_state</span><span·class="p"·data-group-id="3 | 148 | </span><span·class="p">-</span><span·class="na">spec</span><span·class="w">·</span><span·class="nf">init_state</span><span·class="p"·data-group-id="3994131873-3">(</span><span·class="n">Tab</span><span·class="p">,</span><span·class="w">·</span><span·class="n">State</span><span·class="p"·data-group-id="3994131873-3">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">NewState</span><span·class="w">·</span><span·class="k">when</span><span·class="w"> |
| 149 | ······</span><span·class="n">Tab</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">atom</span><span·class="p"·data-group-id="3 | 149 | ······</span><span·class="n">Tab</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">atom</span><span·class="p"·data-group-id="3994131873-4">(</span><span·class="p"·data-group-id="3994131873-4">)</span><span·class="p">,</span><span·class="w"> |
| 150 | ······</span><span·class="n">State</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">term</span><span·class="p"·data-group-id="3 | 150 | ······</span><span·class="n">State</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">term</span><span·class="p"·data-group-id="3994131873-5">(</span><span·class="p"·data-group-id="3994131873-5">)</span><span·class="p">,</span><span·class="w"> |
| 151 | ······</span><span·class="n">NewState</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">term</span><span·class="p"·data-group-id="3 | 151 | ······</span><span·class="n">NewState</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">term</span><span·class="p"·data-group-id="3994131873-6">(</span><span·class="p"·data-group-id="3994131873-6">)</span><span·class="p">.</span><span·class="w"> |
| 152 | </span><span·class="nf">init_state</span><span·class="p"·data-group-id="3 | 152 | </span><span·class="nf">init_state</span><span·class="p"·data-group-id="3994131873-7">(</span><span·class="p">_</span><span·class="n">Tab</span><span·class="p">,</span><span·class="w">·</span><span·class="n">State</span><span·class="p"·data-group-id="3994131873-7">)</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><span·class="n">State</span><span·class="w">·</span><span·class="o">==</span><span·class="w">·</span><span·class="ss">undefined</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 153 | ····</span><span·class="o">#</span><span·class="ss">hash_state</span><span·class="p"·data-group-id="3 | 153 | ····</span><span·class="o">#</span><span·class="ss">hash_state</span><span·class="p"·data-group-id="3994131873-8">{</span><span·class="ss">n_fragments</span><span·class="w">·····</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">1</span><span·class="p">,</span><span·class="w"> |
| 154 | ················</span><span·class="ss">next_n_to_split</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">1</span><span·class="p">,</span><span·class="w"> | 154 | ················</span><span·class="ss">next_n_to_split</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">1</span><span·class="p">,</span><span·class="w"> |
| 155 | ················</span><span·class="ss">n_doubles</span><span·class="w">·······</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">0</span><span·class="p">,</span><span·class="w"> | 155 | ················</span><span·class="ss">n_doubles</span><span·class="w">·······</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">0</span><span·class="p">,</span><span·class="w"> |
| 156 | ················</span><span·class="ss">function</span><span·class="w">········</span><span·class="o">=</span><span·class="w">·</span><span·class="nb">phash2</span><span·class="p"·data-group-id="3 | 156 | ················</span><span·class="ss">function</span><span·class="w">········</span><span·class="o">=</span><span·class="w">·</span><span·class="nb">phash2</span><span·class="p"·data-group-id="3994131873-8">}</span><span·class="p">.</span><span·class="w"> |
| 157 | </span><span·class="nf">convert_old_state</span><span·class="p"·data-group-id="3 | 157 | </span><span·class="nf">convert_old_state</span><span·class="p"·data-group-id="3994131873-9">(</span><span·class="p"·data-group-id="3994131873-10">{</span><span·class="ss">hash_state</span><span·class="p">,</span><span·class="w">·</span><span·class="n">N</span><span·class="p">,</span><span·class="w">·</span><span·class="n">P</span><sp[·...·truncated·by·diffoscope;·len:·164,·SHA:·4410adbfdffe5ad96239d5d416090cec13f2da61ce094f216865b12d77a9a48c·...·]-9">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 158 | ····</span><span·class="o">#</span><span·class="ss">hash_state</span><span·class="p"·data-group-id="3 | 158 | ····</span><span·class="o">#</span><span·class="ss">hash_state</span><span·class="p"·data-group-id="3994131873-11">{</span><span·class="ss">n_fragments</span><span·class="w">·····</span><span·class="o">=</span><span·class="w">·</span><span·class="n">N</span><span·class="p">,</span><span·class="w"> |
| 159 | ················</span><span·class="ss">next_n_to_split</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">P</span><span·class="p">,</span><span·class="w"> | 159 | ················</span><span·class="ss">next_n_to_split</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">P</span><span·class="p">,</span><span·class="w"> |
| 160 | ················</span><span·class="ss">n_doubles</span><span·class="w">·······</span><span·class="o">=</span><span·class="w">·</span><span·class="n">L</span><span·class="p">,</span><span·class="w"> | 160 | ················</span><span·class="ss">n_doubles</span><span·class="w">·······</span><span·class="o">=</span><span·class="w">·</span><span·class="n">L</span><span·class="p">,</span><span·class="w"> |
| 161 | ················</span><span·class="ss">function</span><span·class="w">········</span><span·class="o">=</span><span·class="w">·</span><span·class="nb">phash</span><span·class="p"·data-group-id="3 | 161 | ················</span><span·class="ss">function</span><span·class="w">········</span><span·class="o">=</span><span·class="w">·</span><span·class="nb">phash</span><span·class="p"·data-group-id="3994131873-11">}</span><span·class="p">.</span><span·class="w"> |
| 162 | </span><span·class="c1">%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%</span><span·class="w"> | 162 | </span><span·class="c1">%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%</span><span·class="w"> |
| 163 | </span><span·class="w"> | 163 | </span><span·class="w"> |
| 164 | </span><span·class="p">-</span><span·class="na">spec</span><span·class="w">·</span><span·class="nf">add_frag</span><span·class="p"·data-group-id="3 | 164 | </span><span·class="p">-</span><span·class="na">spec</span><span·class="w">·</span><span·class="nf">add_frag</span><span·class="p"·data-group-id="3994131873-12">(</span><span·class="n">State</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">term</span><span·class="p"·data-group-id="3994131873-13">(</span><span·class="p"·data-group-i[·...·truncated·by·diffoscope;·len:·452,·SHA:·5ec5d7c47ab926e1c6fc27b3335c75c6f4259874ea33629add071597d7b1bc23·...·]-14">}</span><span·class="w">·</span><span·class="k">when</span><span·class="w"> |
| 165 | ······</span><span·class="n">NewState</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">term</span><span·class="p"·data-group-id="3 | 165 | ······</span><span·class="n">NewState</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">term</span><span·class="p"·data-group-id="3994131873-15">(</span><span·class="p"·data-group-id="3994131873-15">)</span><span·class="p">,</span><span·class="w"> |
| 166 | ······</span><span·class="n">IterFrags</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id="3 | 166 | ······</span><span·class="n">IterFrags</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id="3994131873-16">[</span><span·class="nf">integer</span><span·class="p"·data-group-id="3994131873-17">(</span><span·class="p"·data-group-id="3994131873-17">)</span><span·class="p"·data-group-id="3994131873-16">]</span><span·class="p">,</span><span·class="w"> |
| 167 | ······</span><span·class="n">AdditionalLockFrags</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id="3 | 167 | ······</span><span·class="n">AdditionalLockFrags</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id="3994131873-18">[</span><span·class="nf">integer</span><span·class="p"·data-group-id="3994131873-19">(</span><span·class="p"·data-group-id="3994131873-19">)</span><span·class="p"·data-group-id="3994131873-18">]</span><span·class="p">.</span><span·class="w"> |
| 168 | </span><span·class="nf">add_frag</span><span·class="p"·data-group-id="3 | 168 | </span><span·class="nf">add_frag</span><span·class="p"·data-group-id="3994131873-20">(</span><span·class="o">#</span><span·class="ss">hash_state</span><span·class="p"·data-group-id="3994131873-21">{</span><span·class="ss">next_n_to_split</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class[·...·truncated·by·diffoscope;·len:·569,·SHA:·d1f816f0795b8665e84327db19d82eaf87c0ab2503c5d87658f9e88b90a661c6·...·]-20">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 169 | ····</span><span·class="n">P</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">SplitN</span><span·class="w">·</span><span·class="o">+</span><span·class="w">·</span><span·class="mi">1</span><span·class="p">,</span><span·class="w"> | 169 | ····</span><span·class="n">P</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">SplitN</span><span·class="w">·</span><span·class="o">+</span><span·class="w">·</span><span·class="mi">1</span><span·class="p">,</span><span·class="w"> |
| 170 | ····</span><span·class="n">NewN</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">N</span><span·class="w">·</span><span·class="o">+</span><span·class="w">·</span><span·class="mi">1</span><span·class="p">,</span><span·class="w"> | 170 | ····</span><span·class="n">NewN</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">N</span><span·class="w">·</span><span·class="o">+</span><span·class="w">·</span><span·class="mi">1</span><span·class="p">,</span><span·class="w"> |
| 171 | ····</span><span·class="n">State2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="k">case</span><span·class="w">·</span><span·class="nf">power2</span><span·class="p"·data-group-id="3 | 171 | ····</span><span·class="n">State2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="k">case</span><span·class="w">·</span><span·class="nf">power2</span><span·class="p"·data-group-id="3994131873-22">(</span><span·class="n">L</span><span·class="p"·data-group-id="3994131873-22">)</span><span·class="w">·</span><span·class="o">+</span><span·class="w">·</span><span·class="mi">1</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 172 | ········</span><span·class="n">P2</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><span·class="n">P2</span><span·class="w">·</span><span·class="o">==</span><span·class="w">·</span><span·class="n">P</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 172 | ········</span><span·class="n">P2</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><span·class="n">P2</span><span·class="w">·</span><span·class="o">==</span><span·class="w">·</span><span·class="n">P</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 173 | ············</span><span·class="n">State</span><span·class="o">#</span><span·class="ss">hash_state</span><span·class="p"·data-group-id="3 | 173 | ············</span><span·class="n">State</span><span·class="o">#</span><span·class="ss">hash_state</span><span·class="p"·data-group-id="3994131873-23">{</span><span·class="ss">n_fragments</span><span·class="w">······</span><span·class="o">=</span><span·class="w">·</span><span·class="n">NewN</span><span·class="p">,</span><span·class="w"> |
| 174 | ·····························</span><span·class="ss">n_doubles</span><span·class="w">········</span><span·class="o">=</span><span·class="w">·</span><span·class="n">L</span><span·class="w">·</span><span·class="o">+</span><span·class="w">·</span><span·class="mi">1</span><span·class="p">,</span><span·class="w"> | 174 | ·····························</span><span·class="ss">n_doubles</span><span·class="w">········</span><span·class="o">=</span><span·class="w">·</span><span·class="n">L</span><span·class="w">·</span><span·class="o">+</span><span·class="w">·</span><span·class="mi">1</span><span·class="p">,</span><span·class="w"> |
| 175 | ·····························</span><span·class="ss">next_n_to_split</span><span·class="w">··</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">1</span><span·class="p"·data-group-id="3 | 175 | ·····························</span><span·class="ss">next_n_to_split</span><span·class="w">··</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">1</span><span·class="p"·data-group-id="3994131873-23">}</span><span·class="p">;</span><span·class="w"> |
| 176 | ········</span><span·class="p">_</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 176 | ········</span><span·class="p">_</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 177 | ············</span><span·class="n">State</span><span·class="o">#</span><span·class="ss">hash_state</span><span·class="p"·data-group-id="3 | 177 | ············</span><span·class="n">State</span><span·class="o">#</span><span·class="ss">hash_state</span><span·class="p"·data-group-id="3994131873-24">{</span><span·class="ss">n_fragments</span><span·class="w">·····</span><span·class="o">=</span><span·class="w">·</span><span·class="n">NewN</span><span·class="p">,</span><span·class="w"> |
| 178 | ·····························</span><span·class="ss">next_n_to_split</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">P</span><span·class="p"·data-group-id="3 | 178 | ·····························</span><span·class="ss">next_n_to_split</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">P</span><span·class="p"·data-group-id="3994131873-24">}</span><span·class="w"> |
| 179 | ····</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> | 179 | ····</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> |
| 180 | ····</span><span·class="p"·data-group-id="3 | 180 | ····</span><span·class="p"·data-group-id="3994131873-25">{</span><span·class="n">State2</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3994131873-26">[</span><span·class="n">SplitN</span><span·class="p"·data-group-id="3994131873-26">]</span><span·class="p">,</s[·...·truncated·by·diffoscope;·len:·204,·SHA:·cee439d36dd7d6c060838ffce786c4e649215122077477c2bbb6f1495116d4a9·...·]-25">}</span><span·class="p">;</span><span·class="w"> |
| 181 | </span><span·class="nf">add_frag</span><span·class="p"·data-group-id="3 | 181 | </span><span·class="nf">add_frag</span><span·class="p"·data-group-id="3994131873-28">(</span><span·class="n">OldState</span><span·class="p"·data-group-id="3994131873-28">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 182 | ····</span><span·class="n">State</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">convert_old_state</span><span·class="p"·data-group-id="3 | 182 | ····</span><span·class="n">State</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">convert_old_state</span><span·class="p"·data-group-id="3994131873-29">(</span><span·class="n">OldState</span><span·class="p"·data-group-id="3994131873-29">)</span><span·class="p">,</span><span·class="w"> |
| 183 | ····</span><span·class="nf">add_frag</span><span·class="p"·data-group-id="3 | 183 | ····</span><span·class="nf">add_frag</span><span·class="p"·data-group-id="3994131873-30">(</span><span·class="n">State</span><span·class="p"·data-group-id="3994131873-30">)</span><span·class="p">.</span><span·class="w"> |
| 184 | </span><span·class="c1">%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%</span><span·class="w"> | 184 | </span><span·class="c1">%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%</span><span·class="w"> |
| 185 | </span><span·class="w"> | 185 | </span><span·class="w"> |
| 186 | </span><span·class="p">-</span><span·class="na">spec</span><span·class="w">·</span><span·class="nf">del_frag</span><span·class="p"·data-group-id="3 | 186 | </span><span·class="p">-</span><span·class="na">spec</span><span·class="w">·</span><span·class="nf">del_frag</span><span·class="p"·data-group-id="3994131873-31">(</span><span·class="n">State</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">term</span><span·class="p"·data-group-id="3994131873-32">(</span><span·class="p"·data-group-i[·...·truncated·by·diffoscope;·len:·452,·SHA:·ab657dc0365fba9d245b37d5e76527b4559836772e708d8a89ef65cb0c988855·...·]-33">}</span><span·class="w">·</span><span·class="k">when</span><span·class="w"> |
| 187 | ······</span><span·class="n">NewState</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">term</span><span·class="p"·data-group-id="3 | 187 | ······</span><span·class="n">NewState</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">term</span><span·class="p"·data-group-id="3994131873-34">(</span><span·class="p"·data-group-id="3994131873-34">)</span><span·class="p">,</span><span·class="w"> |
| 188 | ······</span><span·class="n">IterFrags</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id="3 | 188 | ······</span><span·class="n">IterFrags</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id="3994131873-35">[</span><span·class="nf">integer</span><span·class="p"·data-group-id="3994131873-36">(</span><span·class="p"·data-group-id="3994131873-36">)</span><span·class="p"·data-group-id="3994131873-35">]</span><span·class="p">,</span><span·class="w"> |
| 189 | ······</span><span·class="n">AdditionalLockFrags</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id="3 | 189 | ······</span><span·class="n">AdditionalLockFrags</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id="3994131873-37">[</span><span·class="nf">integer</span><span·class="p"·data-group-id="3994131873-38">(</span><span·class="p"·data-group-id="3994131873-38">)</span><span·class="p"·data-group-id="3994131873-37">]</span><span·class="p">.</span><span·class="w"> |
| 190 | </span><span·class="nf">del_frag</span><span·class="p"·data-group-id="3 | 190 | </span><span·class="nf">del_frag</span><span·class="p"·data-group-id="3994131873-39">(</span><span·class="o">#</span><span·class="ss">hash_state</span><span·class="p"·data-group-id="3994131873-40">{</span><span·class="ss">next_n_to_split</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class[·...·truncated·by·diffoscope;·len:·569,·SHA:·f6e37402385fa257a2ead2ba32edf6276ba8de2c1ac85fc3932a6e3f05553aec·...·]-39">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 191 | ····</span><span·class="n">P</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">SplitN</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="mi">1</span><span·class="p">,</span><span·class="w"> | 191 | ····</span><span·class="n">P</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">SplitN</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="mi">1</span><span·class="p">,</span><span·class="w"> |
| 192 | ····</span><span·class="k">if</span><span·class="w"> | 192 | ····</span><span·class="k">if</span><span·class="w"> |
| 193 | ········</span><span·class="n">P</span><span·class="w">·</span><span·class="o"><</span><span·class="w">·</span><span·class="mi">1</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 193 | ········</span><span·class="n">P</span><span·class="w">·</span><span·class="o"><</span><span·class="w">·</span><span·class="mi">1</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 194 | ············</span><span·class="n">L2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">L</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="mi">1</span><span·class="p">,</span><span·class="w"> | 194 | ············</span><span·class="n">L2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">L</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="mi">1</span><span·class="p">,</span><span·class="w"> |
| 195 | ············</span><span·class="n">MergeN</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">power2</span><span·class="p"·data-group-id="3 | 195 | ············</span><span·class="n">MergeN</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">power2</span><span·class="p"·data-group-id="3994131873-41">(</span><span·class="n">L2</span><span·class="p"·data-group-id="3994131873-41">)</span><span·class="p">,</span><span·class="w"> |
| 196 | ············</span><span·class="n">State2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">State</span><span·class="o">#</span><span·class="ss">hash_state</span><span·class="p"·data-group-id="3 | 196 | ············</span><span·class="n">State2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">State</span><span·class="o">#</span><span·class="ss">hash_state</span><span·class="p"·data-group-id="3994131873-42">{</span><span·class="ss">n_fragments</span><span·class="w">·····</span><span·class="o">=</span><span·class="w">·</span><span·class="n">N</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="mi">1</span><span·class="p">,</span><span·class="w"> |
| 197 | ······································</span><span·class="ss">next_n_to_split</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">MergeN</span><span·class="p">,</span><span·class="w"> | 197 | ······································</span><span·class="ss">next_n_to_split</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">MergeN</span><span·class="p">,</span><span·class="w"> |
| 198 | ······································</span><span·class="ss">n_doubles</span><span·class="w">·······</span><span·class="o">=</span><span·class="w">·</span><span·class="n">L2</span><span·class="p"·data-group-id="3 | 198 | ······································</span><span·class="ss">n_doubles</span><span·class="w">·······</span><span·class="o">=</span><span·class="w">·</span><span·class="n">L2</span><span·class="p"·data-group-id="3994131873-42">}</span><span·class="p">,</span><span·class="w"> |
| 199 | ············</span><span·class="p"·data-group-id="3 | 199 | ············</span><span·class="p"·data-group-id="3994131873-43">{</span><span·class="n">State2</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3994131873-44">[</span><span·class="n">N</span><span·class="p"·data-group-id="3994131873-44">]</span><span·class="p">,</span><[·...·truncated·by·diffoscope;·len:·201,·SHA:·6830122cbb1953395127e3b0857db2b1ab6a53f000e4a6e4737486eeb7cfa4f9·...·]-43">}</span><span·class="p">;</span><span·class="w"> |
| 200 | ········</span><span·class="ss">true</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 200 | ········</span><span·class="ss">true</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 201 | ············</span><span·class="n">MergeN</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">P</span><span·class="p">,</span><span·class="w"> | 201 | ············</span><span·class="n">MergeN</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">P</span><span·class="p">,</span><span·class="w"> |
| 202 | ············</span><span·class="n">State2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">State</span><span·class="o">#</span><span·class="ss">hash_state</span><span·class="p"·data-group-id="3 | 202 | ············</span><span·class="n">State2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">State</span><span·class="o">#</span><span·class="ss">hash_state</span><span·class="p"·data-group-id="3994131873-46">{</span><span·class="ss">n_fragments</span><span·class="w">·····</span><span·class="o">=</span><span·class="w">·</span><span·class="n">N</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="mi">1</span><span·class="p">,</span><span·class="w"> |
| 203 | ······································</span><span·class="ss">next_n_to_split</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">MergeN</span><span·class="p"·data-group-id="3 | 203 | ······································</span><span·class="ss">next_n_to_split</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">MergeN</span><span·class="p"·data-group-id="3994131873-46">}</span><span·class="p">,</span><span·class="w"> |
| 204 | ············</span><span·class="p"·data-group-id="3 | 204 | ············</span><span·class="p"·data-group-id="3994131873-47">{</span><span·class="n">State2</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3994131873-48">[</span><span·class="n">N</span><span·class="p"·data-group-id="3994131873-48">]</span><span·class="p">,</span><[·...·truncated·by·diffoscope;·len:·201,·SHA:·7470a999a1f71325a997b8937289b48b4b654ebd610f93e298c02060814bd6f9·...·]-47">}</span><span·class="w"> |
| 205 | ····</span><span·class="k">end</span><span·class="p">;</span><span·class="w"> | 205 | ····</span><span·class="k">end</span><span·class="p">;</span><span·class="w"> |
| 206 | </span><span·class="nf">del_frag</span><span·class="p"·data-group-id="3 | 206 | </span><span·class="nf">del_frag</span><span·class="p"·data-group-id="3994131873-50">(</span><span·class="n">OldState</span><span·class="p"·data-group-id="3994131873-50">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 207 | ····</span><span·class="n">State</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">convert_old_state</span><span·class="p"·data-group-id="3 | 207 | ····</span><span·class="n">State</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">convert_old_state</span><span·class="p"·data-group-id="3994131873-51">(</span><span·class="n">OldState</span><span·class="p"·data-group-id="3994131873-51">)</span><span·class="p">,</span><span·class="w"> |
| 208 | ····</span><span·class="nf">del_frag</span><span·class="p"·data-group-id="3 | 208 | ····</span><span·class="nf">del_frag</span><span·class="p"·data-group-id="3994131873-52">(</span><span·class="n">State</span><span·class="p"·data-group-id="3994131873-52">)</span><span·class="p">.</span><span·class="w"> |
| 209 | </span><span·class="c1">%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%</span><span·class="w"> | 209 | </span><span·class="c1">%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%</span><span·class="w"> |
| 210 | </span><span·class="p">-</span><span·class="na">spec</span><span·class="w">·</span><span·class="nf">key_to_frag_number</span><span·class="p"·data-group-id="3 | 210 | </span><span·class="p">-</span><span·class="na">spec</span><span·class="w">·</span><span·class="nf">key_to_frag_number</span><span·class="p"·data-group-id="3994131873-53">(</span><span·class="n">State</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Key</span><span·class="p"·data-group-id="3994131873-53">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">Fragnum</span><span·class="w">·</span><span·class="k">when</span><span·class="w"> |
| 211 | ······</span><span·class="n">State</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">term</span><span·class="p"·data-group-id="3 | 211 | ······</span><span·class="n">State</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">term</span><span·class="p"·data-group-id="3994131873-54">(</span><span·class="p"·data-group-id="3994131873-54">)</span><span·class="p">,</span><span·class="w"> |
| 212 | ······</span><span·class="n">Key</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">term</span><span·class="p"·data-group-id="3 | 212 | ······</span><span·class="n">Key</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">term</span><span·class="p"·data-group-id="3994131873-55">(</span><span·class="p"·data-group-id="3994131873-55">)</span><span·class="p">,</span><span·class="w"> |
| 213 | ······</span><span·class="n">Fragnum</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="3 | 213 | ······</span><span·class="n">Fragnum</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="3994131873-56">(</span><span·class="p"·data-group-id="3994131873-56">)</span><span·class="p">.</span><span·class="w"> |
| 214 | </span><span·class="nf">key_to_frag_number</span><span·class="p"·data-group-id="3 | 214 | </span><span·class="nf">key_to_frag_number</span><span·class="p"·data-group-id="3994131873-57">(</span><span·class="o">#</span><span·class="ss">hash_state</span><span·class="p"·data-group-id="3994131873-58">{</span><span·class="ss">function</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nb">p[·...·truncated·by·diffoscope;·len:·536,·SHA:·bce4468e690d80ac308433dd5368e52850e135f9c6578d7d47d164946c369024·...·]-57">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 215 | ····</span><span·class="n">A</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">phash</span><span·class="p"·data-group-id="3 | 215 | ····</span><span·class="n">A</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">phash</span><span·class="p"·data-group-id="3994131873-59">(</span><span·class="n">Key</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">power2</span><span·class="p"·data-group-id="3994131873-60">(</span><span·class="n">L</span><span·class="w">·</span><span·class="o">+</span><spa[·...·truncated·by·diffoscope;·len:·140,·SHA:·d32223fc475796150442c92352659d60ee9f482c175d2b58c496e6b96772d276·...·]-59">)</span><span·class="p">,</span><span·class="w"> |
| 216 | ····</span><span·class="k">if</span><span·class="w"> | 216 | ····</span><span·class="k">if</span><span·class="w"> |
| 217 | ········</span><span·class="n">A</span><span·class="w">·</span><span·class="o">></span><span·class="w">·</span><span·class="n">N</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 217 | ········</span><span·class="n">A</span><span·class="w">·</span><span·class="o">></span><span·class="w">·</span><span·class="n">N</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 218 | ············</span><span·class="n">A</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="nf">power2</span><span·class="p"·data-group-id="3 | 218 | ············</span><span·class="n">A</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="nf">power2</span><span·class="p"·data-group-id="3994131873-61">(</span><span·class="n">L</span><span·class="p"·data-group-id="3994131873-61">)</span><span·class="p">;</span><span·class="w"> |
| 219 | ········</span><span·class="ss">true</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 219 | ········</span><span·class="ss">true</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 220 | ············</span><span·class="n">A</span><span·class="w"> | 220 | ············</span><span·class="n">A</span><span·class="w"> |
| 221 | ····</span><span·class="k">end</span><span·class="p">;</span><span·class="w"> | 221 | ····</span><span·class="k">end</span><span·class="p">;</span><span·class="w"> |
| 222 | </span><span·class="nf">key_to_frag_number</span><span·class="p"·data-group-id="3 | 222 | </span><span·class="nf">key_to_frag_number</span><span·class="p"·data-group-id="3994131873-62">(</span><span·class="o">#</span><span·class="ss">hash_state</span><span·class="p"·data-group-id="3994131873-63">{</span><span·class="ss">function</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nb">p[·...·truncated·by·diffoscope;·len:·537,·SHA:·89572e5353f98b6c8b09bf08e315c58adfa92d94a98d55ec9b587dfd78774e96·...·]-62">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 223 | ····</span><span·class="n">A</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">phash2</span><span·class="p"·data-group-id="3 | 223 | ····</span><span·class="n">A</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">phash2</span><span·class="p"·data-group-id="3994131873-64">(</span><span·class="n">Key</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">power2</span><span·class="p"·data-group-id="3994131873-65">(</span><span·class="n">L</span><span·class="w">·</span><span·class="o">+</span><spa[·...·truncated·by·diffoscope;·len:·140,·SHA:·4c3819ed7348fab9780a904dc474d3a6ff4e78da43d201b339950e32c2cb3c10·...·]-64">)</span><span·class="w">·</span><span·class="o">+</span><span·class="w">·</span><span·class="mi">1</span><span·class="p">,</span><span·class="w"> |
| 224 | ····</span><span·class="k">if</span><span·class="w"> | 224 | ····</span><span·class="k">if</span><span·class="w"> |
| 225 | ········</span><span·class="n">A</span><span·class="w">·</span><span·class="o">></span><span·class="w">·</span><span·class="n">N</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 225 | ········</span><span·class="n">A</span><span·class="w">·</span><span·class="o">></span><span·class="w">·</span><span·class="n">N</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 226 | ············</span><span·class="n">A</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="nf">power2</span><span·class="p"·data-group-id="3 | 226 | ············</span><span·class="n">A</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="nf">power2</span><span·class="p"·data-group-id="3994131873-66">(</span><span·class="n">L</span><span·class="p"·data-group-id="3994131873-66">)</span><span·class="p">;</span><span·class="w"> |
| 227 | ········</span><span·class="ss">true</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 227 | ········</span><span·class="ss">true</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 228 | ············</span><span·class="n">A</span><span·class="w"> | 228 | ············</span><span·class="n">A</span><span·class="w"> |
| 229 | ····</span><span·class="k">end</span><span·class="p">;</span><span·class="w"> | 229 | ····</span><span·class="k">end</span><span·class="p">;</span><span·class="w"> |
| 230 | </span><span·class="nf">key_to_frag_number</span><span·class="p"·data-group-id="3 | 230 | </span><span·class="nf">key_to_frag_number</span><span·class="p"·data-group-id="3994131873-67">(</span><span·class="n">OldState</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Key</span><span·class="p"·data-group-id="3994131873-67">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 231 | ····</span><span·class="n">State</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">convert_old_state</span><span·class="p"·data-group-id="3 | 231 | ····</span><span·class="n">State</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">convert_old_state</span><span·class="p"·data-group-id="3994131873-68">(</span><span·class="n">OldState</span><span·class="p"·data-group-id="3994131873-68">)</span><span·class="p">,</span><span·class="w"> |
| 232 | ····</span><span·class="nf">key_to_frag_number</span><span·class="p"·data-group-id="3 | 232 | ····</span><span·class="nf">key_to_frag_number</span><span·class="p"·data-group-id="3994131873-69">(</span><span·class="n">State</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Key</span><span·class="p"·data-group-id="3994131873-69">)</span><span·class="p">.</span><span·class="w"> |
| 233 | </span><span·class="c1">%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%</span><span·class="w"> | 233 | </span><span·class="c1">%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%</span><span·class="w"> |
| 234 | </span><span·class="p">-</span><span·class="na">spec</span><span·class="w">·</span><span·class="nf">match_spec_to_frag_numbers</span><span·class="p"·data-group-id="3 | 234 | </span><span·class="p">-</span><span·class="na">spec</span><span·class="w">·</span><span·class="nf">match_spec_to_frag_numbers</span><span·class="p"·data-group-id="3994131873-70">(</span><span·class="n">State</span><span·class="p">,</span><span·class="w">·</span><span·class="n">MatchSpec</span><span·class="p"·data-group-id="3994131873-70">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">Fragnums</span><span·class="w">·</span><span·class="k">when</span><span·class="w"> |
| 235 | ······</span><span·class="n">State</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">term</span><span·class="p"·data-group-id="3 | 235 | ······</span><span·class="n">State</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">term</span><span·class="p"·data-group-id="3994131873-71">(</span><span·class="p"·data-group-id="3994131873-71">)</span><span·class="p">,</span><span·class="w"> |
| 236 | ······</span><span·class="n">MatchSpec</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">match_spec</span><span·class="p"·data-group-id="3 | 236 | ······</span><span·class="n">MatchSpec</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">match_spec</span><span·class="p"·data-group-id="3994131873-72">(</span><span·class="p"·data-group-id="3994131873-72">)</span><span·class="p">,</span><span·class="w"> |
| 237 | ······</span><span·class="n">Fragnums</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id="3 | 237 | ······</span><span·class="n">Fragnums</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id="3994131873-73">[</span><span·class="nf">integer</span><span·class="p"·data-group-id="3994131873-74">(</span><span·class="p"·data-group-id="3994131873-74">)</span><span·class="p"·data-group-id="3994131873-73">]</span><span·class="p">.</span><span·class="w"> |
| 238 | </span><span·class="nf">match_spec_to_frag_numbers</span><span·class="p"·data-group-id="3 | 238 | </span><span·class="nf">match_spec_to_frag_numbers</span><span·class="p"·data-group-id="3994131873-75">(</span><span·class="o">#</span><span·class="ss">hash_state</span><span·class="p"·data-group-id="3994131873-76">{</span><span·class="ss">n_fragments</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n"[·...·truncated·by·diffoscope;·len:·284,·SHA:·52921c70c8e73f314b339fa656933e2a82c5a2409d21f785c05843eea47f6952·...·]-75">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 239 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="n">MatchSpec</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> | 239 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="n">MatchSpec</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 240 | ········</span><span·class="p"·data-group-id="3 | 240 | ········</span><span·class="p"·data-group-id="3994131873-77">[</span><span·class="p"·data-group-id="3994131873-78">{</span><span·class="n">HeadPat</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·[·...·truncated·by·diffoscope;·len:·554,·SHA:·0a0b4716c2848b704f39a715cef2e4d2f0da37792996e836bd0ce8088aa334f4·...·]-80">)</span><span·class="w">·</span><span·class="o">></span><span·class="w">·</span><span·class="mi">2</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 241 | ············</span><span·class="n">KeyPat</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">element</span><span·class="p"·data-group-id="3 | 241 | ············</span><span·class="n">KeyPat</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">element</span><span·class="p"·data-group-id="3994131873-81">(</span><span·class="mi">2</span><span·class="p">,</span><span·class="w">·</span><span·class="n">HeadPat</span><span·class="p"·data-group-id="3994131873-81">)</span><span·class="p">,</span><span·class="w"> |
| 242 | ············</span><span·class="k">case</span><span·class="w">·</span><span·class="nf">has_var</span><span·class="p"·data-group-id="3 | 242 | ············</span><span·class="k">case</span><span·class="w">·</span><span·class="nf">has_var</span><span·class="p"·data-group-id="3994131873-82">(</span><span·class="n">KeyPat</span><span·class="p"·data-group-id="3994131873-82">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 243 | ················</span><span·class="ss">false</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 243 | ················</span><span·class="ss">false</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 244 | ····················</span><span·class="p"·data-group-id="3 | 244 | ····················</span><span·class="p"·data-group-id="3994131873-83">[</span><span·class="nf">key_to_frag_number</span><span·class="p"·data-group-id="3994131873-84">(</span><span·class="n">State</span><span·class="p">,</span><span·class="w">·</span><span·class="n">KeyPat</span><span·class="p"·data-group-id="39[·...·truncated·by·diffoscope;·len:·62,·SHA:·f1056beeecfe0756dba2fec98002978e00a9f5837f27af425679bfa2c2c4fce5·...·]-83">]</span><span·class="p">;</span><span·class="w"> |
| 245 | ················</span><span·class="ss">true</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 245 | ················</span><span·class="ss">true</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
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| 209 | ······<p·class="built-using"> | 209 | ······<p·class="built-using"> |
| 210 | ········Built·using | 210 | ········Built·using |
| 211 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 211 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 212 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 212 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 213 | ······</p> | 213 | ······</p> |
| 214 | <p>Copyright·©·1996-202 | 214 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 215 | ····</footer> | 215 | ····</footer> |
| 216 | ··</div> | 216 | ··</div> |
| 217 | </main> | 217 | </main> |
| 218 | </div> | 218 | </div> |
| 219 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 219 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 220 | ··<script> | 220 | ··<script> |
| 221 | ··let·initialized·=·false; | 221 | ··let·initialized·=·false; |
| Offset 171, 26 lines modified | Offset 171, 26 lines modified | ||
| 171 | there·as·well.·This·action·extends·the·set·of·nodes·that·comprise·this | 171 | there·as·well.·This·action·extends·the·set·of·nodes·that·comprise·this |
| 172 | particular·<code·class="inline">Mnesia</code>·system.</p></li><li><p><a·href="mnesia.html#del_table_copy/2"><code·class="inline">mnesia:del_table_copy(Tab,·Node)</code></a>·deletes·the | 172 | particular·<code·class="inline">Mnesia</code>·system.</p></li><li><p><a·href="mnesia.html#del_table_copy/2"><code·class="inline">mnesia:del_table_copy(Tab,·Node)</code></a>·deletes·the |
| 173 | replica·of·table·<code·class="inline">Tab</code>·at·node·<code·class="inline">Node</code>.·When·the·last·replica·of·a·table·is | 173 | replica·of·table·<code·class="inline">Tab</code>·at·node·<code·class="inline">Node</code>.·When·the·last·replica·of·a·table·is |
| 174 | removed,·the·table·is·deleted.</p></li><li><p><a·href="mnesia.html#transform_table/4"><code·class="inline">mnesia:transform_table(Tab,·Fun,·NewAttributeList,·NewRecordName)</code></a> | 174 | removed,·the·table·is·deleted.</p></li><li><p><a·href="mnesia.html#transform_table/4"><code·class="inline">mnesia:transform_table(Tab,·Fun,·NewAttributeList,·NewRecordName)</code></a> |
| 175 | changes·the·format·on·all·records·in·table·<code·class="inline">Tab</code>.·It·applies·argument·<code·class="inline">Fun</code>·to | 175 | changes·the·format·on·all·records·in·table·<code·class="inline">Tab</code>.·It·applies·argument·<code·class="inline">Fun</code>·to |
| 176 | all·records·in·the·table.·<code·class="inline">Fun</code>·must·be·a·function·that·takes·a·record·of·the | 176 | all·records·in·the·table.·<code·class="inline">Fun</code>·must·be·a·function·that·takes·a·record·of·the |
| 177 | old·type,·and·returns·the·record·of·the·new·type.·The·table·key·must·not·be | 177 | old·type,·and·returns·the·record·of·the·new·type.·The·table·key·must·not·be |
| 178 | changed.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id=" | 178 | changed.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id="6611090238-1">(</span><span·class="ss">old</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6611090238-2">{</span><span·class="ss">key</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">val</span><spa[·...·truncated·by·diffoscope;·len:·90,·SHA:·a005619f20984ab88d49bee47e4e75587e46ce214f7f53798da714b64193a57d·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 179 | </span><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id=" | 179 | </span><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id="6611090238-3">(</span><span·class="ss">new</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6611090238-4">{</span><span·class="ss">key</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">val</span><spa[·...·truncated·by·diffoscope;·len:·167,·SHA:·dcd256b5451751ff4eacce98ad9dec44f84fbd66db4723e4e1dd26344e378206·...·]-3">)</span><span·class="p">.</span><span·class="w"> |
| 180 | </span><span·class="n">Transformer</span><span·class="w">·</span><span·class="o">=</span><span·class="w"> | 180 | </span><span·class="n">Transformer</span><span·class="w">·</span><span·class="o">=</span><span·class="w"> |
| 181 | ···</span><span·class="nf">fun</span><span·class="p"·data-group-id=" | 181 | ···</span><span·class="nf">fun</span><span·class="p"·data-group-id="6611090238-5">(</span><span·class="n">X</span><span·class="p"·data-group-id="6611090238-5">)</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><span·class="nf">record</span><span·class="p"·data-group-id="6611090238-6">(</span[·...·truncated·by·diffoscope;·len:·141,·SHA:·dc21a4499fbb828f4b3eeb4efc6cc406c76fa8c80dd6cb8d188991cd615306ac·...·]-6">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 182 | ······</span><span·class="o">#</span><span·class="ss">new</span><span·class="p"·data-group-id=" | 182 | ······</span><span·class="o">#</span><span·class="ss">new</span><span·class="p"·data-group-id="6611090238-7">{</span><span·class="ss">key</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">X</span><span·class="o">#</span><span·class="ss">old</span><span·class="p">.</span><span·class="ss">key</span><span·class="p">,</span><span·class="w"> |
| 183 | ···········</span><span·class="ss">val</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">X</span><span·class="o">#</span><span·class="ss">old</span><span·class="p">.</span><span·class="ss">val</span><span·class="p">,</span><span·class="w"> | 183 | ···········</span><span·class="ss">val</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">X</span><span·class="o">#</span><span·class="ss">old</span><span·class="p">.</span><span·class="ss">val</span><span·class="p">,</span><span·class="w"> |
| 184 | ···········</span><span·class="ss">extra</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">42</span><span·class="p"·data-group-id=" | 184 | ···········</span><span·class="ss">extra</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">42</span><span·class="p"·data-group-id="6611090238-7">}</span><span·class="w"> |
| 185 | ···</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> | 185 | ···</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> |
| 186 | </span><span·class="p"·data-group-id=" | 186 | </span><span·class="p"·data-group-id="6611090238-8">{</span><span·class="ss">atomic</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">ok</span><span·class="p"·data-group-id="6611090238-8">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span[·...·truncated·by·diffoscope;·len:·129,·SHA:·b0d9ee2602da030ae479a0d79f70d0cdc9ffa185d424f8c8318e8b5475726085·...·]-9">(</span><span·class="ss">foo</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Transformer</span><span·class="p">,</span><span·class="w"> |
| 187 | ······································</span><span·class="nf">record_info</span><span·class="p"·data-group-id=" | 187 | ······································</span><span·class="nf">record_info</span><span·class="p"·data-group-id="6611090238-10">(</span><span·class="ss">fields</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">new</span><span·class="p"·data-group-id="6611090238-10">)</span><span·class="p">,</span><span·class="w"> |
| 188 | ······································</span><span·class="ss">new</span><span·class="p"·data-group-id=" | 188 | ······································</span><span·class="ss">new</span><span·class="p"·data-group-id="6611090238-9">)</span><span·class="p">,</span></code></pre><p>Argument·<code·class="inline">Fun</code>·can·also·be·the·atom·<code·class="inline">ignore</code>,·which·indicates·that·only·the |
| 189 | metadata·about·the·table·is·updated.·Use·of·<code·class="inline">ignore</code>·is·not·recommended·(as·it | 189 | metadata·about·the·table·is·updated.·Use·of·<code·class="inline">ignore</code>·is·not·recommended·(as·it |
| 190 | creates·inconsistencies·between·the·metadata·and·the·actual·data)·but·it·is | 190 | creates·inconsistencies·between·the·metadata·and·the·actual·data)·but·it·is |
| 191 | included·as·a·possibility·for·the·user·do·to·an·own·(offline)·transform.</p></li><li><p><a·href="mnesia.html#change_table_copy_type/3"><code·class="inline">mnesia:change_table_copy_type(Tab,·Node,·ToType)</code></a> | 191 | included·as·a·possibility·for·the·user·do·to·an·own·(offline)·transform.</p></li><li><p><a·href="mnesia.html#change_table_copy_type/3"><code·class="inline">mnesia:change_table_copy_type(Tab,·Node,·ToType)</code></a> |
| 192 | changes·the·storage·type·of·a·table.·For·example,·a·RAM·table·is·changed·to·a | 192 | changes·the·storage·type·of·a·table.·For·example,·a·RAM·table·is·changed·to·a |
| 193 | <code·class="inline">disc_table</code>·at·the·node·specified·as·<code·class="inline">Node</code>.</p></li></ul><h2·id="data-model"·class="section-heading"> | 193 | <code·class="inline">disc_table</code>·at·the·node·specified·as·<code·class="inline">Node</code>.</p></li></ul><h2·id="data-model"·class="section-heading"> |
| 194 | ··<a·href="#data-model"·class="hover-link"> | 194 | ··<a·href="#data-model"·class="hover-link"> |
| 195 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 195 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 234, 37 lines modified | Offset 234, 37 lines modified | ||
| 234 | <a·href="mnesia_chap2.html#getting_started">Getting·Started</a>·to·illustrate·how·to·run·a | 234 | <a·href="mnesia_chap2.html#getting_started">Getting·Started</a>·to·illustrate·how·to·run·a |
| 235 | database·on·two·separate·nodes,·called·<code·class="inline">a@gin</code>·and·<code·class="inline">b@skeppet</code>.·Each·of·these | 235 | database·on·two·separate·nodes,·called·<code·class="inline">a@gin</code>·and·<code·class="inline">b@skeppet</code>.·Each·of·these |
| 236 | nodes·must·have·a·<code·class="inline">Mnesia</code>·directory·and·an·initialized·schema·before·<code·class="inline">Mnesia</code> | 236 | nodes·must·have·a·<code·class="inline">Mnesia</code>·directory·and·an·initialized·schema·before·<code·class="inline">Mnesia</code> |
| 237 | can·be·started.·There·are·two·ways·to·specify·the·<code·class="inline">Mnesia</code>·directory·to·be·used:</p><ul><li><p>Specify·the·<code·class="inline">Mnesia</code>·directory·by·providing·an·application·parameter·either | 237 | can·be·started.·There·are·two·ways·to·specify·the·<code·class="inline">Mnesia</code>·directory·to·be·used:</p><ul><li><p>Specify·the·<code·class="inline">Mnesia</code>·directory·by·providing·an·application·parameter·either |
| 238 | when·starting·the·Erlang·shell·or·in·the·application·script.·Previously,·the | 238 | when·starting·the·Erlang·shell·or·in·the·application·script.·Previously,·the |
| 239 | following·example·was·used·to·create·the·directory·for·the·<code·class="inline">Company</code>·database:</p><pre><code·class="text">%·erl·-mnesia·dir·'"/ldisc/scratch/Mnesia.Company"'</code></pre></li><li><p>If·no·command-line·flag·is·entered,·the·<code·class="inline">Mnesia</code>·directory·becomes·the·current | 239 | following·example·was·used·to·create·the·directory·for·the·<code·class="inline">Company</code>·database:</p><pre><code·class="text">%·erl·-mnesia·dir·'"/ldisc/scratch/Mnesia.Company"'</code></pre></li><li><p>If·no·command-line·flag·is·entered,·the·<code·class="inline">Mnesia</code>·directory·becomes·the·current |
| 240 | working·directory·on·the·node·where·the·Erlang·shell·is·started.</p></li></ul><p>To·start·the·<code·class="inline">Company</code>·database·and·get·it·running·on·the·two·specified·nodes, | 240 | working·directory·on·the·node·where·the·Erlang·shell·is·started.</p></li></ul><p>To·start·the·<code·class="inline">Company</code>·database·and·get·it·running·on·the·two·specified·nodes, |
| 241 | enter·the·following·commands:</p><ol><li>On·the·node·<code·class="inline">a@gin</code>:</li></ol><pre><code·class="text">·gin·%·erl·-sname·a··-mnesia·dir·'"/ldisc/scratch/Mnesia.company"'</code></pre><ol·start="2"><li>On·the·node·<code·class="inline">b@skeppet</code>:</li></ol><pre><code·class="text">skeppet·%·erl·-sname·b·-mnesia·dir·'"/ldisc/scratch/Mnesia.company"'</code></pre><ol·start="3"><li>On·one·of·the·two·nodes:</li></ol><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">(a@gin)1>·</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">create_schema</span><span·class="p"·data-group-id=" | 241 | enter·the·following·commands:</p><ol><li>On·the·node·<code·class="inline">a@gin</code>:</li></ol><pre><code·class="text">·gin·%·erl·-sname·a··-mnesia·dir·'"/ldisc/scratch/Mnesia.company"'</code></pre><ol·start="2"><li>On·the·node·<code·class="inline">b@skeppet</code>:</li></ol><pre><code·class="text">skeppet·%·erl·-sname·b·-mnesia·dir·'"/ldisc/scratch/Mnesia.company"'</code></pre><ol·start="3"><li>On·one·of·the·two·nodes:</li></ol><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">(a@gin)1>·</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">create_schema</span><span·class="p"·data-group-id="6304939619-1">(</span><span·class="p"·data-group-id="6304939619-2">[</span><span·class="ss">a@gin</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">b@skeppet</span><span·class="p"·data-group-id="6304939619-2">]</span><span·class="p"·da[·...·truncated·by·diffoscope;·len:·23,·SHA:·f12aa0cd2fefd3f45492bcea15c1b1ee6e5c235a18657737ffc08cf47c8246c5·...·]-1">)</span><span·class="p">.</span></code></pre><ol·start="4"><li>The·function·<a·href="mnesia.html#start/0"><code·class="inline">mnesia:start()</code></a>·is·called·on·both·nodes.</li><li>To·initialize·the·database,·execute·the·following·code·on·one·of·the·two |
| 242 | nodes:</li></ol><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">dist_init</span><span·class="p"·data-group-id=" | 242 | nodes:</li></ol><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">dist_init</span><span·class="p"·data-group-id="9939450890-1">(</span><span·class="p"·data-group-id="9939450890-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 243 | ····</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">create_table</span><span·class="p"·data-group-id=" | 243 | ····</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">create_table</span><span·class="p"·data-group-id="9939450890-2">(</span><span·class="ss">employee</span><span·class="p">,</span><span·class="w"> |
| 244 | ·························</span><span·class="p"·data-group-id=" | 244 | ·························</span><span·class="p"·data-group-id="9939450890-3">[</span><span·class="p"·data-group-id="9939450890-4">{</span><span·class="ss">ram_copies</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9939450890-5">[</span><span·class="ss">a@gin</span><span·class="p">,[·...·truncated·by·diffoscope;·len:·158,·SHA:·dc3d6daf43b8074a1221fd9ecc4e6ff718917f507b795b9f237e70810007fbe2·...·]-4">}</span><span·class="p">,</span><span·class="w"> |
| 245 | ··························</span><span·class="p"·data-group-id=" | 245 | ··························</span><span·class="p"·data-group-id="9939450890-6">{</span><span·class="ss">attributes</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">record_info</span><span·class="p"·data-group-id="9939450890-7">(</span><span·class="ss">fields</span><span·class="p">,</span><span·class="w"> |
| 246 | ···················································</span><span·class="ss">employee</span><span·class="p"·data-group-id=" | 246 | ···················································</span><span·class="ss">employee</span><span·class="p"·data-group-id="9939450890-7">)</span><span·class="p"·data-group-id="9939450890-6">}</span><span·class="p"·data-group-id="9939450890-3">]</span><span·class="p"·data-group-id="9939450890-2">)</span><span·class="p">,</span><span·class="w"> |
| 247 | ····</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">create_table</span><span·class="p"·data-group-id=" | 247 | ····</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">create_table</span><span·class="p"·data-group-id="9939450890-8">(</span><span·class="ss">dept</span><span·class="p">,</span><span·class="w"> |
| 248 | ·························</span><span·class="p"·data-group-id=" | 248 | ·························</span><span·class="p"·data-group-id="9939450890-9">[</span><span·class="p"·data-group-id="9939450890-10">{</span><span·class="ss">ram_copies</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9939450890-11">[</span><span·class="ss">a@gin</span><span·class="p"[·...·truncated·by·diffoscope;·len:·161,·SHA:·19060e9cb22e71d9a5fa5732eb50864c838b0364c972ac0dc98c52766bb4d085·...·]-10">}</span><span·class="p">,</span><span·class="w"> |
| 249 | ··························</span><span·class="p"·data-group-id=" | 249 | ··························</span><span·class="p"·data-group-id="9939450890-12">{</span><span·class="ss">attributes</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">record_info</span><span·class="p"·data-group-id="9939450890-13">(</span><span·class="ss">fields</span><span·class="p">,</span><span·cl[·...·truncated·by·diffoscope;·len:·246,·SHA:·bb384544bb81ca54b63d5c856a53421433e7b33ae6bae43056f37db080021707·...·]-8">)</span><span·class="p">,</span><span·class="w"> |
| 250 | ····</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">create_table</span><span·class="p"·data-group-id=" | 250 | ····</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">create_table</span><span·class="p"·data-group-id="9939450890-14">(</span><span·class="ss">project</span><span·class="p">,</span><span·class="w"> |
| 251 | ·························</span><span·class="p"·data-group-id=" | 251 | ·························</span><span·class="p"·data-group-id="9939450890-15">[</span><span·class="p"·data-group-id="9939450890-16">{</span><span·class="ss">ram_copies</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9939450890-17">[</span><span·class="ss">a@gin</span><span·class="p[·...·truncated·by·diffoscope;·len:·162,·SHA:·0736754fb92dec3e5d3640f32f48e8acb1d8a619ba15da167ddf7da8657d68b4·...·]-16">}</span><span·class="p">,</span><span·class="w"> |
| 252 | ··························</span><span·class="p"·data-group-id=" | 252 | ··························</span><span·class="p"·data-group-id="9939450890-18">{</span><span·class="ss">attributes</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">record_info</span><span·class="p"·data-group-id="9939450890-19">(</span><span·class="ss">fields</span><span·class="p">,</span><span·cl[·...·truncated·by·diffoscope;·len:·250,·SHA:·9f41c52632af8520955296e44d33189007a1e260d75fa6a9a247b3c12065df7d·...·]-14">)</span><span·class="p">,</span><span·class="w"> |
| 253 | ····</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">create_table</span><span·class="p"·data-group-id=" | 253 | ····</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">create_table</span><span·class="p"·data-group-id="9939450890-20">(</span><span·class="ss">manager</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9939450890-21">[</span><span·class="p"·data-group-id="9939450890-22">{</span><span·class="ss">type</span><span·class="p">,<[·...·truncated·by·diffoscope;·len:·98,·SHA:·beffaf61b9bc11ad34370439fcea8065b1f86afe0c97b5ea9cfee9bc95c5cf30·...·]-22">}</span><span·class="p">,</span><span·class="w"> |
| 254 | ··································</span><span·class="p"·data-group-id=" | 254 | ··································</span><span·class="p"·data-group-id="9939450890-23">{</span><span·class="ss">ram_copies</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9939450890-24">[</span><span·class="ss">a@gin</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">b@s[·...·truncated·by·diffoscope;·len:·108,·SHA:·6bd9ac80b77826eefea454eaa7a1d26b451a2ca31d6b7371e4673389e63b3f17·...·]-23">}</span><span·class="p">,</span><span·class="w"> |
| 255 | ··································</span><span·class="p"·data-group-id=" | 255 | ··································</span><span·class="p"·data-group-id="9939450890-25">{</span><span·class="ss">attributes</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">record_info</span><span·class="p"·data-group-id="9939450890-26">(</span><span·class="ss">fields</span><span·class="p">,</span><span·class="w"> |
| 256 | ···························································</span><span·class="ss">manager</span><span·class="p"·data-group-id=" | 256 | ···························································</span><span·class="ss">manager</span><span·class="p"·data-group-id="9939450890-26">)</span><span·class="p"·data-group-id="9939450890-25">}</span><span·class="p"·data-group-id="9939450890-21">]</span><span·class="p"·data-group-id="9939450890-20">)</span><span·class="p">,</span><span·class="w"> |
| 257 | ····</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">create_table</span><span·class="p"·data-group-id=" | 257 | ····</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">create_table</span><span·class="p"·data-group-id="9939450890-27">(</span><span·class="ss">at_dep</span><span·class="p">,</span><span·class="w"> |
| 258 | ·························</span><span·class="p"·data-group-id=" | 258 | ·························</span><span·class="p"·data-group-id="9939450890-28">[</span><span·class="p"·data-group-id="9939450890-29">{</span><span·class="ss">ram_copies</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9939450890-30">[</span><span·class="ss">a@gin</span><span·class="p[·...·truncated·by·diffoscope;·len:·162,·SHA:·fd7e6346f42d606868823b0d524cd9b1086cc5da8270402deb98a6c8254b9cbb·...·]-29">}</span><span·class="p">,</span><span·class="w"> |
| 259 | ··························</span><span·class="p"·data-group-id=" | 259 | ··························</span><span·class="p"·data-group-id="9939450890-31">{</span><span·class="ss">attributes</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">record_info</span><span·class="p"·data-group-id="9939450890-32">(</span><span·class="ss">fields</span><span·class="p">,</span><span·cl[·...·truncated·by·diffoscope;·len:·249,·SHA:·bbc6db262530a37831c636b3baa175f1932620ff3173941a828d75e98d513fd4·...·]-27">)</span><span·class="p">,</span><span·class="w"> |
| 260 | ····</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">create_table</span><span·class="p"·data-group-id=" | 260 | ····</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">create_table</span><span·class="p"·data-group-id="9939450890-33">(</span><span·class="ss">in_proj</span><span·class="p">,</span><span·class="w"> |
| 261 | ························</span><span·class="p"·data-group-id=" | 261 | ························</span><span·class="p"·data-group-id="9939450890-34">[</span><span·class="p"·data-group-id="9939450890-35">{</span><span·class="ss">type</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">bag</span><span·class="p"·data-group-id="9939450890-35">}</span><span·class="p">,</span><span·class="w"> |
| 262 | ·························</span><span·class="p"·data-group-id=" | 262 | ·························</span><span·class="p"·data-group-id="9939450890-36">{</span><span·class="ss">ram_copies</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9939450890-37">[</span><span·class="ss">a@gin</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">b@s[·...·truncated·by·diffoscope;·len:·108,·SHA:·79e9a2fa6763cd16d8cc04894e3c3dc72ca274a25c844aa498d8c109603d7772·...·]-36">}</span><span·class="p">,</span><span·class="w"> |
| 263 | ·························</span><span·class="p"·data-group-id=" | 263 | ·························</span><span·class="p"·data-group-id="9939450890-38">{</span><span·class="ss">attributes</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">record_info</span><span·class="p"·data-group-id="9939450890-39">(</span><span·class="ss">fields</span><span·class="p">,</span><span·cl[·...·truncated·by·diffoscope;·len:·250,·SHA:·31553dd220b0c06cbb1153cb1b74df647bea95476a1bcf7ee0bb9f92fb39e1a3·...·]-33">)</span><span·class="p">.</span></code></pre><p>As·illustrated,·the·two·directories·reside·on·different·nodes,·because |
| 264 | <code·class="inline">/ldisc/scratch</code>·(the·"local"·disc)·exists·on·the·two·different·nodes.</p><p>By·executing·these·commands,·two·Erlang·nodes·are·configured·to·run·the | 264 | <code·class="inline">/ldisc/scratch</code>·(the·"local"·disc)·exists·on·the·two·different·nodes.</p><p>By·executing·these·commands,·two·Erlang·nodes·are·configured·to·run·the |
| 265 | <code·class="inline">Company</code>·database,·and·therefore,·initialize·the·database.·This·is·required | 265 | <code·class="inline">Company</code>·database,·and·therefore,·initialize·the·database.·This·is·required |
| 266 | only·once·when·setting·up.·The·next·time·the·system·is·started, | 266 | only·once·when·setting·up.·The·next·time·the·system·is·started, |
| 267 | <a·href="mnesia.html#start/0"><code·class="inline">mnesia:start()</code></a>·is·called·on·both·nodes,·to·initialize·the | 267 | <a·href="mnesia.html#start/0"><code·class="inline">mnesia:start()</code></a>·is·called·on·both·nodes,·to·initialize·the |
| 268 | system·from·disc.</p><p>In·a·system·of·<code·class="inline">Mnesia</code>·nodes,·every·node·is·aware·of·the·current·location·of | 268 | system·from·disc.</p><p>In·a·system·of·<code·class="inline">Mnesia</code>·nodes,·every·node·is·aware·of·the·current·location·of |
| 269 | all·tables.·In·this·example,·data·is·replicated·on·both·nodes·and·functions·that | 269 | all·tables.·In·this·example,·data·is·replicated·on·both·nodes·and·functions·that |
| 270 | manipulate·the·data·in·the·tables·can·be·executed·on·either·of·the·two·nodes. | 270 | manipulate·the·data·in·the·tables·can·be·executed·on·either·of·the·two·nodes. |
| Offset 273, 15 lines modified | Offset 273, 15 lines modified | ||
| 273 | the·function·is·executed.·The·functions·<a·href="mnesia.html#start/0"><code·class="inline">mnesia:start/0</code></a>·and·<a·href="mnesia.html#stop/0"><code·class="inline">mnesia:stop/0</code></a> | 273 | the·function·is·executed.·The·functions·<a·href="mnesia.html#start/0"><code·class="inline">mnesia:start/0</code></a>·and·<a·href="mnesia.html#stop/0"><code·class="inline">mnesia:stop/0</code></a> |
| 274 | work·on·the·"local"·<code·class="inline">Mnesia</code>·system.·No·functions·start·or·stop·a·set·of·nodes.</p><h3·id="startup-procedure"·class="section-heading"> | 274 | work·on·the·"local"·<code·class="inline">Mnesia</code>·system.·No·functions·start·or·stop·a·set·of·nodes.</p><h3·id="startup-procedure"·class="section-heading"> |
| 275 | ··<a·href="#startup-procedure"·class="hover-link"> | 275 | ··<a·href="#startup-procedure"·class="hover-link"> |
| 276 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 276 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 277 | ··</a> | 277 | ··</a> |
| 278 | ··<span·class="text">Startup·Procedure</span> | 278 | ··<span·class="text">Startup·Procedure</span> |
| 279 | </h3> | 279 | </h3> |
| 280 | <p>Start·<code·class="inline">Mnesia</code>·by·calling·the·following·function:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id=" | 280 | <p>Start·<code·class="inline">Mnesia</code>·by·calling·the·following·function:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id="9636254441-1">(</span><span·class="p"·data-group-id="9636254441-1">)</span><span·class="p">.</span></code></pre><p>This·function·initiates·the·DBMS·locally.</p><p>The·choice·of·configuration·alters·the·location·and·load·order·of·the·tables. |
| 281 | The·alternatives·are·as·follows:</p><ol><li>Tables·that·are·only·stored·locally·are·initialized·from·the·local·<code·class="inline">Mnesia</code> | 281 | The·alternatives·are·as·follows:</p><ol><li>Tables·that·are·only·stored·locally·are·initialized·from·the·local·<code·class="inline">Mnesia</code> |
| 282 | directory.</li><li>Replicated·tables·that·reside·locally·as·well·as·somewhere·else·are·either | 282 | directory.</li><li>Replicated·tables·that·reside·locally·as·well·as·somewhere·else·are·either |
| 283 | initiated·from·disc·or·by·copying·the·entire·table·from·the·other·node, | 283 | initiated·from·disc·or·by·copying·the·entire·table·from·the·other·node, |
| 284 | depending·on·which·of·the·different·replicas·are·the·most·recent.·<code·class="inline">Mnesia</code> | 284 | depending·on·which·of·the·different·replicas·are·the·most·recent.·<code·class="inline">Mnesia</code> |
| 285 | determines·which·of·the·tables·are·the·most·recent.</li><li>Tables·that·reside·on·remote·nodes·are·available·to·other·nodes·as·soon·as | 285 | determines·which·of·the·tables·are·the·most·recent.</li><li>Tables·that·reside·on·remote·nodes·are·available·to·other·nodes·as·soon·as |
| 286 | they·are·loaded.</li></ol><p>Table·initialization·is·asynchronous.·The·function·call | 286 | they·are·loaded.</li></ol><p>Table·initialization·is·asynchronous.·The·function·call |
| 287 | <a·href="mnesia.html#start/0"><code·class="inline">mnesia:start()</code></a>·returns·the·atom·<code·class="inline">ok</code>·and·then·starts·to | 287 | <a·href="mnesia.html#start/0"><code·class="inline">mnesia:start()</code></a>·returns·the·atom·<code·class="inline">ok</code>·and·then·starts·to |
| Offset 296, 17 lines modified | Offset 296, 17 lines modified | ||
| 296 | situation,·a·call·to·<a·href="mnesia.html#wait_for_tables/2"><code·class="inline">mnesia:wait_for_tables/2</code></a>,·suspends·the·caller·until·the | 296 | situation,·a·call·to·<a·href="mnesia.html#wait_for_tables/2"><code·class="inline">mnesia:wait_for_tables/2</code></a>,·suspends·the·caller·until·the |
| 297 | remote·node·has·initialized·the·table·from·its·local·disc·and·the·node·has | 297 | remote·node·has·initialized·the·table·from·its·local·disc·and·the·node·has |
| 298 | copied·the·table·over·the·network·to·the·local·node.</p><p>However,·this·procedure·can·be·time-consuming,·the·shortcut·function | 298 | copied·the·table·over·the·network·to·the·local·node.</p><p>However,·this·procedure·can·be·time-consuming,·the·shortcut·function |
| 299 | <a·href="mnesia.html#force_load_table/1"><code·class="inline">mnesia:force_load_table(Tab)</code></a>·loads·all·the·tables | 299 | <a·href="mnesia.html#force_load_table/1"><code·class="inline">mnesia:force_load_table(Tab)</code></a>·loads·all·the·tables |
| 300 | from·disc·at·a·faster·rate.·The·function·forces·tables·to·be·loaded·from·disc | 300 | from·disc·at·a·faster·rate.·The·function·forces·tables·to·be·loaded·from·disc |
| 301 | regardless·of·the·network·situation.</p><p>Thus,·it·can·be·assumed·that·if·an·application·wants·to·use·tables·<code·class="inline">a</code>·and·<code·class="inline">b</code>, | 301 | regardless·of·the·network·situation.</p><p>Thus,·it·can·be·assumed·that·if·an·application·wants·to·use·tables·<code·class="inline">a</code>·and·<code·class="inline">b</code>, |
| 302 | the·application·must·perform·some·action·similar·to·following·before·it·can·use | 302 | the·application·must·perform·some·action·similar·to·following·before·it·can·use |
| 303 | the·tables:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="k">case</span><span·class="w">·</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">wait_for_tables</span><span·class="p"·data-group-id=" | 303 | the·tables:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="k">case</span><span·class="w">·</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">wait_for_tables</span><span·class="p"·data-group-id="6561501615-1">(</span><span·class="p"·data-group-id="6561501615-2">[</span><span·class="ss">a</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">b</span><span·class="p"·data-group-id="6561501615-2">]</span><span·class="p">,</span><span·[·...·truncated·by·diffoscope;·len:·88,·SHA:·de39fe5e53351b4e27758ac790d0deb35a9a34da210d17f36a1abf26eee9beb6·...·]-1">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 304 | ··</span><span·class="p"·data-group-id=" | 304 | ··</span><span·class="p"·data-group-id="6561501615-3">{</span><span·class="ss">timeout</span><span·class="p">,</span><span·class="w">·</span><span·class="n">RemainingTabs</span><span·class="p"·data-group-id="6561501615-3">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 305 | ····</span><span·class="nf">panic</span><span·class="p"·data-group-id=" | 305 | ····</span><span·class="nf">panic</span><span·class="p"·data-group-id="6561501615-4">(</span><span·class="n">RemainingTabs</span><span·class="p"·data-group-id="6561501615-4">)</span><span·class="p">;</span><span·class="w"> |
| 306 | ··</span><span·class="ss">ok</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 306 | ··</span><span·class="ss">ok</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 307 | ····</span><span·class="ss">synced</span><span·class="w"> | 307 | ····</span><span·class="ss">synced</span><span·class="w"> |
| 308 | </span><span·class="k">end</span><span·class="p">.</span></code></pre><section·role="note"·class="admonition·warning"><h4·class="admonition-title·warning">Warning</h4><p>When·tables·are·forcefully·loaded·from·the·local·disc,·all·operations·that | 308 | </span><span·class="k">end</span><span·class="p">.</span></code></pre><section·role="note"·class="admonition·warning"><h4·class="admonition-title·warning">Warning</h4><p>When·tables·are·forcefully·loaded·from·the·local·disc,·all·operations·that |
| 309 | were·performed·on·the·replicated·table·while·the·local·node·was·down,·and·the | 309 | were·performed·on·the·replicated·table·while·the·local·node·was·down,·and·the |
| 310 | remote·replica·was·alive,·are·lost.·This·can·cause·the·database·to·become | 310 | remote·replica·was·alive,·are·lost.·This·can·cause·the·database·to·become |
| 311 | inconsistent.</p></section><p>If·the·startup·procedure·fails,·the·function·<a·href="mnesia.html#start/0"><code·class="inline">mnesia:start()</code></a> | 311 | inconsistent.</p></section><p>If·the·startup·procedure·fails,·the·function·<a·href="mnesia.html#start/0"><code·class="inline">mnesia:start()</code></a> |
| 312 | returns·the·cryptic·tuple | 312 | returns·the·cryptic·tuple |
| Offset 324, 21 lines modified | Offset 324, 21 lines modified | ||
| 324 | the·records·that·constitute·the·table.·For·details,·see·<code·class="inline">record_name</code>.</li><li><code·class="inline">Opts</code>·is·a·list·of·<code·class="inline">{Key,Value}</code>·tuples.·The·following·options·are | 324 | the·records·that·constitute·the·table.·For·details,·see·<code·class="inline">record_name</code>.</li><li><code·class="inline">Opts</code>·is·a·list·of·<code·class="inline">{Key,Value}</code>·tuples.·The·following·options·are |
| 325 | valid:<ul><li><p><code·class="inline">{type,·Type}</code>,·where·<code·class="inline">Type</code>·must·be·either·of·the·atoms·<code·class="inline">set</code>, | 325 | valid:<ul><li><p><code·class="inline">{type,·Type}</code>,·where·<code·class="inline">Type</code>·must·be·either·of·the·atoms·<code·class="inline">set</code>, |
| 326 | <code·class="inline">ordered_set</code>,·or·<code·class="inline">bag</code>.·Default·is·<code·class="inline">set</code>.</p><p>Notice·that·currently·<code·class="inline">ordered_set</code>·is·not·supported·for·<code·class="inline">disc_only_copies</code> | 326 | <code·class="inline">ordered_set</code>,·or·<code·class="inline">bag</code>.·Default·is·<code·class="inline">set</code>.</p><p>Notice·that·currently·<code·class="inline">ordered_set</code>·is·not·supported·for·<code·class="inline">disc_only_copies</code> |
| 327 | tables.</p><p>A·table·of·type·<code·class="inline">set</code>·or·<code·class="inline">ordered_set</code>·has·either·zero·or·one·record·per | 327 | tables.</p><p>A·table·of·type·<code·class="inline">set</code>·or·<code·class="inline">ordered_set</code>·has·either·zero·or·one·record·per |
| 328 | key,·whereas·a·table·of·type·<code·class="inline">bag</code>·can·have·an·arbitrary·number·of·records | 328 | key,·whereas·a·table·of·type·<code·class="inline">bag</code>·can·have·an·arbitrary·number·of·records |
| 329 | per·key.·The·key·for·each·record·is·always·the·first·attribute·of·the | 329 | per·key.·The·key·for·each·record·is·always·the·first·attribute·of·the |
| 330 | record.</p><p>The·following·example·illustrates·the·difference·between·type·<code·class="inline">set</code>·and | 330 | record.</p><p>The·following·example·illustrates·the·difference·between·type·<code·class="inline">set</code>·and |
| 331 | <code·class="inline">bag</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">·</span><span·class="nf">f</span><span·class="p"·data-group-id=" | 331 | <code·class="inline">bag</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">·</span><span·class="nf">f</span><span·class="p"·data-group-id="8185793840-1">(</span><span·class="p"·data-group-id="8185793840-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 332 | ····</span><span·class="n">F</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id=" | 332 | ····</span><span·class="n">F</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id="8185793840-2">(</span><span·class="p"·data-group-id="8185793840-2">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 333 | ··········</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">write</span><span·class="p"·data-group-id=" | 333 | ··········</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">write</span><span·class="p"·data-group-id="8185793840-3">(</span><span·class="p"·data-group-id="8185793840-4">{</span><span·class="ss">foo</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">2</span><span·cl[·...·truncated·by·diffoscope;·len:·86,·SHA:·6a36d1b1e26758fb4a8efe8a17192b565490d312ad0c6489f0333851aedfbf84·...·]-3">)</span><span·class="p">,</span><span·class="w"> |
| 334 | ··········</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">write</span><span·class="p"·data-group-id=" | 334 | ··········</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">write</span><span·class="p"·data-group-id="8185793840-5">(</span><span·class="p"·data-group-id="8185793840-6">{</span><span·class="ss">foo</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">3</span><span·cl[·...·truncated·by·diffoscope;·len:·86,·SHA:·caeb76f89b41d0ce94cc2b2294e16adf083bfb393dde196f2cdc11051023773d·...·]-5">)</span><span·class="p">,</span><span·class="w"> |
| 335 | ··········</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">read</span><span·class="p"·data-group-id=" | 335 | ··········</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">read</span><span·class="p"·data-group-id="8185793840-7">(</span><span·class="p"·data-group-id="8185793840-8">{</span><span·class="ss">foo</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">1</span><span·class="p"·data-group-id="8185793840-8">}</span><span·class="p"·data-group-i[·...·truncated·by·diffoscope;·len:·13,·SHA:·2195c541d94d2a4ae94ed393523d6a26614d92c6457d77c4e8838175e5945c87·...·]-7">)</span><span·class="w"> |
| 336 | ········</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> | 336 | ········</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> |
| 337 | ····</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">transaction</span><span·class="p"·data-group-id=" | 337 | ····</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">transaction</span><span·class="p"·data-group-id="8185793840-9">(</span><span·class="n">F</span><span·class="p"·data-group-id="8185793840-9">)</span><span·class="p">.</span></code></pre><p>This·transaction·returns·the·list·<code·class="inline">[{foo,1,3}]</code>·if·table·<code·class="inline">foo</code>·is·of·type |
| 338 | <code·class="inline">set</code>.·However,·the·list·<code·class="inline">[{foo,1,2},·{foo,1,3}]</code>·is·returned·if·the·table | 338 | <code·class="inline">set</code>.·However,·the·list·<code·class="inline">[{foo,1,2},·{foo,1,3}]</code>·is·returned·if·the·table |
| 339 | is·of·type·<code·class="inline">bag</code>.</p><p><code·class="inline">Mnesia</code>·tables·can·never·contain·duplicates·of·the·same·record·in·the·same | 339 | is·of·type·<code·class="inline">bag</code>.</p><p><code·class="inline">Mnesia</code>·tables·can·never·contain·duplicates·of·the·same·record·in·the·same |
| 340 | table.·Duplicate·records·have·attributes·with·the·same·contents·and·key.</p></li><li><p><code·class="inline">{disc_copies,·NodeList}</code>,·where·<code·class="inline">NodeList</code>·is·a·list·of·the·nodes·where | 340 | table.·Duplicate·records·have·attributes·with·the·same·contents·and·key.</p></li><li><p><code·class="inline">{disc_copies,·NodeList}</code>,·where·<code·class="inline">NodeList</code>·is·a·list·of·the·nodes·where |
| 341 | this·table·is·to·reside·on·disc.</p><p>Write·operations·to·a·table·replica·of·type·<code·class="inline">disc_copies</code>·write·data·to·the | 341 | this·table·is·to·reside·on·disc.</p><p>Write·operations·to·a·table·replica·of·type·<code·class="inline">disc_copies</code>·write·data·to·the |
| 342 | disc·copy·and·to·the·RAM·copy·of·the·table.</p><p>It·is·possible·to·have·a·replicated·table·of·type·<code·class="inline">disc_copies</code>·on·one·node, | 342 | disc·copy·and·to·the·RAM·copy·of·the·table.</p><p>It·is·possible·to·have·a·replicated·table·of·type·<code·class="inline">disc_copies</code>·on·one·node, |
| 343 | and·the·same·table·stored·as·a·different·type·on·another·node.·Default·is | 343 | and·the·same·table·stored·as·a·different·type·on·another·node.·Default·is |
| 344 | <code·class="inline">[]</code>.·This·arrangement·is·desirable·if·the·following·operational | 344 | <code·class="inline">[]</code>.·This·arrangement·is·desirable·if·the·following·operational |
| Offset 374, 19 lines modified | Offset 374, 19 lines modified | ||
| 374 | possible·for·you·to·provide·the·attribute·names·or·to·use·the | 374 | possible·for·you·to·provide·the·attribute·names·or·to·use·the |
| 375 | <code·class="inline">record_info/2</code>·notation.</p><p>It·is·recommended·to·use·the·<code·class="inline">record_info/2</code>·notation,·as·it·becomes·easier | 375 | <code·class="inline">record_info/2</code>·notation.</p><p>It·is·recommended·to·use·the·<code·class="inline">record_info/2</code>·notation,·as·it·becomes·easier |
| 376 | to·maintain·the·program·and·the·program·becomes·more·robust·with·regards·to | 376 | to·maintain·the·program·and·the·program·becomes·more·robust·with·regards·to |
| 377 | future·record·changes.</p></li><li><p><code·class="inline">{record_name,·Atom}</code>·specifies·the·common·name·of·all·records·stored·in·the | 377 | future·record·changes.</p></li><li><p><code·class="inline">{record_name,·Atom}</code>·specifies·the·common·name·of·all·records·stored·in·the |
| 378 | table.·All·records·stored·in·the·table·must·have·this·name·as·their·first | 378 | table.·All·records·stored·in·the·table·must·have·this·name·as·their·first |
| 379 | element.·<code·class="inline">record_name</code>·defaults·to·the·name·of·the·table.·For·more | 379 | element.·<code·class="inline">record_name</code>·defaults·to·the·name·of·the·table.·For·more |
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| 141 | <p>Transactions·are·important·when·designing·fault-tolerant,·distributed·systems.·A | 141 | <p>Transactions·are·important·when·designing·fault-tolerant,·distributed·systems.·A |
| 142 | <code·class="inline">Mnesia</code>·transaction·is·a·mechanism·by·which·a·series·of·database·operations·can | 142 | <code·class="inline">Mnesia</code>·transaction·is·a·mechanism·by·which·a·series·of·database·operations·can |
| 143 | be·executed·as·one·functional·block.·The·functional·block·that·is·run·as·a | 143 | be·executed·as·one·functional·block.·The·functional·block·that·is·run·as·a |
| 144 | transaction·is·called·a·Functional·Object·(Fun),·and·this·code·can·read,·write, | 144 | transaction·is·called·a·Functional·Object·(Fun),·and·this·code·can·read,·write, |
| 145 | and·delete·<code·class="inline">Mnesia</code>·records.·The·Fun·is·evaluated·as·a·transaction·that·either | 145 | and·delete·<code·class="inline">Mnesia</code>·records.·The·Fun·is·evaluated·as·a·transaction·that·either |
| 146 | commits·or·terminates.·If·a·transaction·succeeds·in·executing·the·Fun,·it | 146 | commits·or·terminates.·If·a·transaction·succeeds·in·executing·the·Fun,·it |
| 147 | replicates·the·action·on·all·nodes·involved,·or·terminates·if·an·error·occurs.</p><p>The·following·example·shows·a·transaction·that·raises·the·salary·of·certain | 147 | replicates·the·action·on·all·nodes·involved,·or·terminates·if·an·error·occurs.</p><p>The·following·example·shows·a·transaction·that·raises·the·salary·of·certain |
| 148 | employee·numbers:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">raise</span><span·class="p"·data-group-id=" | 148 | employee·numbers:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">raise</span><span·class="p"·data-group-id="7393217852-1">(</span><span·class="n">Eno</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Raise</span><span·class="p"·data-group-id="7393217852-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 149 | ····</span><span·class="n">F</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id=" | 149 | ····</span><span·class="n">F</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id="7393217852-2">(</span><span·class="p"·data-group-id="7393217852-2">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 150 | ················</span><span·class="p"·data-group-id=" | 150 | ················</span><span·class="p"·data-group-id="7393217852-3">[</span><span·class="n">E</span><span·class="p"·data-group-id="7393217852-3">]</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">read</span><sp[·...·truncated·by·diffoscope;·len:·274,·SHA:·47ae11cd871131e68921d6684838a64a40e143d895c1e64f3d371998a2fc3858·...·]-4">)</span><span·class="p">,</span><span·class="w"> |
| 151 | ················</span><span·class="n">Salary</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">E</span><span·class="o">#</span><span·class="ss">employee</span><span·class="p">.</span><span·class="ss">salary</span><span·class="w">·</span><span·class="o">+</span><span·class="w">·</span><span·class="n">Raise</span><span·class="p">,</span><span·class="w"> | 151 | ················</span><span·class="n">Salary</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">E</span><span·class="o">#</span><span·class="ss">employee</span><span·class="p">.</span><span·class="ss">salary</span><span·class="w">·</span><span·class="o">+</span><span·class="w">·</span><span·class="n">Raise</span><span·class="p">,</span><span·class="w"> |
| 152 | ················</span><span·class="n">New</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">E</span><span·class="o">#</span><span·class="ss">employee</span><span·class="p"·data-group-id=" | 152 | ················</span><span·class="n">New</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">E</span><span·class="o">#</span><span·class="ss">employee</span><span·class="p"·data-group-id="7393217852-5">{</span><span·class="ss">salary</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">Salary</span><span·class="p"·data-group-id="7393217852-5">}</span><span·class="p">,</span><span·class="w"> |
| 153 | ················</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">write</span><span·class="p"·data-group-id=" | 153 | ················</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">write</span><span·class="p"·data-group-id="7393217852-6">(</span><span·class="n">New</span><span·class="p"·data-group-id="7393217852-6">)</span><span·class="w"> |
| 154 | ········</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> | 154 | ········</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> |
| 155 | ····</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">transaction</span><span·class="p"·data-group-id=" | 155 | ····</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">transaction</span><span·class="p"·data-group-id="7393217852-7">(</span><span·class="n">F</span><span·class="p"·data-group-id="7393217852-7">)</span><span·class="p">.</span></code></pre><p>The·function·<code·class="inline">raise/2</code>·contains·a·Fun·made·up·of·four·code·lines.·This·Fun·is |
| 156 | called·by·the·statement·<code·class="inline">mnesia:transaction(F)</code>·and·returns·a·value.</p><p>The·<code·class="inline">Mnesia</code>·transaction·system·facilitates·the·construction·of·reliable, | 156 | called·by·the·statement·<code·class="inline">mnesia:transaction(F)</code>·and·returns·a·value.</p><p>The·<code·class="inline">Mnesia</code>·transaction·system·facilitates·the·construction·of·reliable, |
| 157 | distributed·systems·by·providing·the·following·important·properties:</p><ul><li>The·transaction·handler·ensures·that·a·Fun,·which·is·placed·inside·a | 157 | distributed·systems·by·providing·the·following·important·properties:</p><ul><li>The·transaction·handler·ensures·that·a·Fun,·which·is·placed·inside·a |
| 158 | transaction,·does·not·interfere·with·operations·embedded·in·other·transactions | 158 | transaction,·does·not·interfere·with·operations·embedded·in·other·transactions |
| 159 | when·it·executes·a·series·of·operations·on·tables.</li><li>The·transaction·handler·ensures·that·either·all·operations·in·the·transaction | 159 | when·it·executes·a·series·of·operations·on·tables.</li><li>The·transaction·handler·ensures·that·either·all·operations·in·the·transaction |
| 160 | are·performed·successfully·on·all·nodes·atomically,·or·the·transaction·fails | 160 | are·performed·successfully·on·all·nodes·atomically,·or·the·transaction·fails |
| 161 | without·permanent·effect·on·any·node.</li><li>The·<code·class="inline">Mnesia</code>·transactions·have·four·important·properties,·called·<em>A</em>tomicity, | 161 | without·permanent·effect·on·any·node.</li><li>The·<code·class="inline">Mnesia</code>·transactions·have·four·important·properties,·called·<em>A</em>tomicity, |
| 162 | <em>C</em>onsistency,·<em>I</em>solation,·and·<em>D</em>urability·(ACID).·These·properties·are | 162 | <em>C</em>onsistency,·<em>I</em>solation,·and·<em>D</em>urability·(ACID).·These·properties·are |
| Offset 242, 23 lines modified | Offset 242, 23 lines modified | ||
| 242 | code·these·operations.</p><p>Deadlocks·can·occur·when·concurrent·processes·set·and·release·locks·on·the·same | 242 | code·these·operations.</p><p>Deadlocks·can·occur·when·concurrent·processes·set·and·release·locks·on·the·same |
| 243 | records.·<code·class="inline">Mnesia</code>·employs·a·"wait-die"·strategy·to·resolve·these·situations.·If | 243 | records.·<code·class="inline">Mnesia</code>·employs·a·"wait-die"·strategy·to·resolve·these·situations.·If |
| 244 | <code·class="inline">Mnesia</code>·suspects·that·a·deadlock·can·occur·when·a·transaction·tries·to·set·a | 244 | <code·class="inline">Mnesia</code>·suspects·that·a·deadlock·can·occur·when·a·transaction·tries·to·set·a |
| 245 | lock,·the·transaction·is·forced·to·release·all·its·locks·and·sleep·for·a·while. | 245 | lock,·the·transaction·is·forced·to·release·all·its·locks·and·sleep·for·a·while. |
| 246 | The·Fun·in·the·transaction·is·evaluated·once·more.</p><p>It·is·therefore·important·that·the·code·inside·the·Fun·given·to | 246 | The·Fun·in·the·transaction·is·evaluated·once·more.</p><p>It·is·therefore·important·that·the·code·inside·the·Fun·given·to |
| 247 | <a·href="mnesia.html#transaction/1"><code·class="inline">mnesia:transaction/1</code></a>·is·pure.·Some·strange·results·can·occur·if,·for·example, | 247 | <a·href="mnesia.html#transaction/1"><code·class="inline">mnesia:transaction/1</code></a>·is·pure.·Some·strange·results·can·occur·if,·for·example, |
| 248 | messages·are·sent·by·the·transaction·Fun.·The·following·example·illustrates·this | 248 | messages·are·sent·by·the·transaction·Fun.·The·following·example·illustrates·this |
| 249 | situation:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">bad_raise</span><span·class="p"·data-group-id=" | 249 | situation:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">bad_raise</span><span·class="p"·data-group-id="2151162149-1">(</span><span·class="n">Eno</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Raise</span><span·class="p"·data-group-id="2151162149-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 250 | ····</span><span·class="n">F</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id=" | 250 | ····</span><span·class="n">F</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id="2151162149-2">(</span><span·class="p"·data-group-id="2151162149-2">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 251 | ················</span><span·class="p"·data-group-id=" | 251 | ················</span><span·class="p"·data-group-id="2151162149-3">[</span><span·class="n">E</span><span·class="p"·data-group-id="2151162149-3">]</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">read</span><sp[·...·truncated·by·diffoscope;·len:·303,·SHA:·5db10db9e4540d41a419e7888189e30d96c8638dc3a72d39a952958f4ef049cf·...·]-4">)</span><span·class="p">,</span><span·class="w"> |
| 252 | ················</span><span·class="n">Salary</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">E</span><span·class="o">#</span><span·class="ss">employee</span><span·class="p">.</span><span·class="ss">salary</span><span·class="w">·</span><span·class="o">+</span><span·class="w">·</span><span·class="n">Raise</span><span·class="p">,</span><span·class="w"> | 252 | ················</span><span·class="n">Salary</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">E</span><span·class="o">#</span><span·class="ss">employee</span><span·class="p">.</span><span·class="ss">salary</span><span·class="w">·</span><span·class="o">+</span><span·class="w">·</span><span·class="n">Raise</span><span·class="p">,</span><span·class="w"> |
| 253 | ················</span><span·class="n">New</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">E</span><span·class="o">#</span><span·class="ss">employee</span><span·class="p"·data-group-id=" | 253 | ················</span><span·class="n">New</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">E</span><span·class="o">#</span><span·class="ss">employee</span><span·class="p"·data-group-id="2151162149-6">{</span><span·class="ss">salary</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">Salary</span><span·class="p"·data-group-id="2151162149-6">}</span><span·class="p">,</span><span·class="w"> |
| 254 | ················</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 254 | ················</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="2151162149-7">(</span><span·class="s">"Trying·to·write·...·</span><span·class="si">~n</span><span·class="s">"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2151162149-8">[</span><span·class="p"·data-group-id[·...·truncated·by·diffoscope;·len:·65,·SHA:·0ddd904383b91a7fbc8a72f219ea6354f2ba21be957bfc1dd4658bb2e5b998c4·...·]-7">)</span><span·class="p">,</span><span·class="w"> |
| 255 | ················</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">write</span><span·class="p"·data-group-id=" | 255 | ················</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">write</span><span·class="p"·data-group-id="2151162149-9">(</span><span·class="n">New</span><span·class="p"·data-group-id="2151162149-9">)</span><span·class="w"> |
| 256 | ········</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> | 256 | ········</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> |
| 257 | ····</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">transaction</span><span·class="p"·data-group-id=" | 257 | ····</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">transaction</span><span·class="p"·data-group-id="2151162149-10">(</span><span·class="n">F</span><span·class="p"·data-group-id="2151162149-10">)</span><span·class="p">.</span></code></pre><p>This·transaction·can·write·the·text·<code·class="inline">"Trying·to·write·...·"</code>·1000·times·to·the |
| 258 | terminal.·However,·<code·class="inline">Mnesia</code>·guarantees·that·each·transaction·will·eventually | 258 | terminal.·However,·<code·class="inline">Mnesia</code>·guarantees·that·each·transaction·will·eventually |
| 259 | run.·As·a·result,·<code·class="inline">Mnesia</code>·is·not·only·deadlock·free,·but·also·livelock·free.</p><p>The·<code·class="inline">Mnesia</code>·programmer·cannot·prioritize·one·particular·transaction·to·execute | 259 | run.·As·a·result,·<code·class="inline">Mnesia</code>·is·not·only·deadlock·free,·but·also·livelock·free.</p><p>The·<code·class="inline">Mnesia</code>·programmer·cannot·prioritize·one·particular·transaction·to·execute |
| 260 | before·other·transactions·that·are·waiting·to·execute.·As·a·result,·the·<code·class="inline">Mnesia</code> | 260 | before·other·transactions·that·are·waiting·to·execute.·As·a·result,·the·<code·class="inline">Mnesia</code> |
| 261 | DBMS·transaction·system·is·not·suitable·for·hard·real-time·applications. | 261 | DBMS·transaction·system·is·not·suitable·for·hard·real-time·applications. |
| 262 | However,·<code·class="inline">Mnesia</code>·contains·other·features·that·have·real-time·properties.</p><p><code·class="inline">Mnesia</code>·dynamically·sets·and·releases·locks·as·transactions·execute.·It·is | 262 | However,·<code·class="inline">Mnesia</code>·contains·other·features·that·have·real-time·properties.</p><p><code·class="inline">Mnesia</code>·dynamically·sets·and·releases·locks·as·transactions·execute.·It·is |
| 263 | therefore·dangerous·to·execute·code·with·transaction·side-effects.·In | 263 | therefore·dangerous·to·execute·code·with·transaction·side-effects.·In |
| 264 | particular,·a·<code·class="inline">receive</code>·statement·inside·a·transaction·can·lead·to·a·situation | 264 | particular,·a·<code·class="inline">receive</code>·statement·inside·a·transaction·can·lead·to·a·situation |
| Offset 297, 21 lines modified | Offset 297, 21 lines modified | ||
| 297 | record·when·reading·a·record,·and·lock·all·replicas·of·a·record·when·writing·a | 297 | record·when·reading·a·record,·and·lock·all·replicas·of·a·record·when·writing·a |
| 298 | record.·However,·some·applications·use·<code·class="inline">Mnesia</code>·mainly·for·its·fault-tolerant | 298 | record.·However,·some·applications·use·<code·class="inline">Mnesia</code>·mainly·for·its·fault-tolerant |
| 299 | qualities.·These·applications·can·be·configured·with·one·node·doing·all·the | 299 | qualities.·These·applications·can·be·configured·with·one·node·doing·all·the |
| 300 | heavy·work,·and·a·standby·node·that·is·ready·to·take·over·if·the·main·node | 300 | heavy·work,·and·a·standby·node·that·is·ready·to·take·over·if·the·main·node |
| 301 | fails.·Such·applications·can·benefit·from·using·sticky·locks·instead·of·the | 301 | fails.·Such·applications·can·benefit·from·using·sticky·locks·instead·of·the |
| 302 | normal·locking·scheme.</p><p>A·sticky·lock·is·a·lock·that·stays·in·place·at·a·node,·after·the·transaction | 302 | normal·locking·scheme.</p><p>A·sticky·lock·is·a·lock·that·stays·in·place·at·a·node,·after·the·transaction |
| 303 | that·first·acquired·the·lock·has·terminated.·To·illustrate·this,·assume·that·the | 303 | that·first·acquired·the·lock·has·terminated.·To·illustrate·this,·assume·that·the |
| 304 | following·transaction·is·executed:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">F</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id="87 | 304 | following·transaction·is·executed:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">F</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id="8762628667-1">(</span><span·class="p"·data-group-id="8762628667-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 305 | ······</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">write</span><span·class="p"·data-group-id="87 | 305 | ······</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">write</span><span·class="p"·data-group-id="8762628667-2">(</span><span·class="o">#</span><span·class="ss">foo</span><span·class="p"·data-group-id="8762628667-3">{</span><span·class="ss">a</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">kalle</span><span·[·...·truncated·by·diffoscope;·len:·88,·SHA:·84d590abaeef1403f3ed743f4424e5553880456d356363223d20e23abb5aa10e·...·]-2">)</span><span·class="w"> |
| 306 | ····</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> | 306 | ····</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> |
| 307 | </span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">transaction</span><span·class="p"·data-group-id="87 | 307 | </span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">transaction</span><span·class="p"·data-group-id="8762628667-4">(</span><span·class="n">F</span><span·class="p"·data-group-id="8762628667-4">)</span><span·class="p">.</span></code></pre><p>The·<code·class="inline">foo</code>·table·is·replicated·on·the·two·nodes·<code·class="inline">N1</code>·and·<code·class[·...·truncated·by·diffoscope;·len:·555,·SHA:·d4b043c8070cfc3cc41645125d5a225d19636f936eb2a781bbd01d257d3aa0ed·...·]-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 308 | ······</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">s_write</span><span·class="p"·data-group-id=" | 308 | ······</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">s_write</span><span·class="p"·data-group-id="4584239381-2">(</span><span·class="o">#</span><span·class="ss">foo</span><span·class="p"·data-group-id="4584239381-3">{</span><span·class="ss">a</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">kalle</span><spa[·...·truncated·by·diffoscope;·len:·90,·SHA:·6d3fb174ac583254ef9a3077d089e21838fe142eaef39e9e37e47e63a92b3ab9·...·]-2">)</span><span·class="w"> |
| 309 | ····</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> | 309 | ····</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> |
| 310 | </span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">transaction</span><span·class="p"·data-group-id=" | 310 | </span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">transaction</span><span·class="p"·data-group-id="4584239381-4">(</span><span·class="n">F</span><span·class="p"·data-group-id="4584239381-4">)</span><span·class="p">.</span></code></pre><p>This·code·uses·the·function·<a·href="mnesia.html#s_write/1"><code·class="inline">s_write/1</code></a>·instead·of·the |
| 311 | function·<a·href="mnesia.html#write/1"><code·class="inline">write/1</code></a>·The·function·<code·class="inline">s_write/1</code>·sets·a·sticky·lock | 311 | function·<a·href="mnesia.html#write/1"><code·class="inline">write/1</code></a>·The·function·<code·class="inline">s_write/1</code>·sets·a·sticky·lock |
| 312 | instead·of·a·normal·lock.·If·the·table·is·not·replicated,·sticky·locks·have·no | 312 | instead·of·a·normal·lock.·If·the·table·is·not·replicated,·sticky·locks·have·no |
| 313 | special·effect.·If·the·table·is·replicated,·and·a·sticky·lock·is·set·on·node | 313 | special·effect.·If·the·table·is·replicated,·and·a·sticky·lock·is·set·on·node |
| 314 | <code·class="inline">N1</code>,·this·lock·then·sticks·to·node·<code·class="inline">N1</code>.·The·next·time·you·try·to·set·a·sticky | 314 | <code·class="inline">N1</code>,·this·lock·then·sticks·to·node·<code·class="inline">N1</code>.·The·next·time·you·try·to·set·a·sticky |
| 315 | lock·on·the·same·record·at·node·<code·class="inline">N1</code>,·<code·class="inline">Mnesia</code>·detects·that·the·lock·is·already | 315 | lock·on·the·same·record·at·node·<code·class="inline">N1</code>,·<code·class="inline">Mnesia</code>·detects·that·the·lock·is·already |
| 316 | set·and·do·no·network·operation·to·acquire·the·lock.</p><p>It·is·more·efficient·to·set·a·local·lock·than·it·is·to·set·a·networked·lock. | 316 | set·and·do·no·network·operation·to·acquire·the·lock.</p><p>It·is·more·efficient·to·set·a·local·lock·than·it·is·to·set·a·networked·lock. |
| 317 | Sticky·locks·can·therefore·benefit·an·application·that·uses·a·replicated·table | 317 | Sticky·locks·can·therefore·benefit·an·application·that·uses·a·replicated·table |
| Offset 329, 16 lines modified | Offset 329, 16 lines modified | ||
| 329 | locks·automatically,·and·the·programmer·does·not·need·to·code·these·operations. | 329 | locks·automatically,·and·the·programmer·does·not·need·to·code·these·operations. |
| 330 | However,·transactions·that·read·and·write·many·records·in·a·specific·table | 330 | However,·transactions·that·read·and·write·many·records·in·a·specific·table |
| 331 | execute·more·efficiently·if·the·transaction·is·started·by·setting·a·table·lock | 331 | execute·more·efficiently·if·the·transaction·is·started·by·setting·a·table·lock |
| 332 | on·this·table.·This·blocks·other·concurrent·transactions·from·the·table.·The | 332 | on·this·table.·This·blocks·other·concurrent·transactions·from·the·table.·The |
| 333 | following·two·functions·are·used·to·set·explicit·table·locks·for·read·and·write | 333 | following·two·functions·are·used·to·set·explicit·table·locks·for·read·and·write |
| 334 | operations:</p><ul><li><a·href="mnesia.html#read_lock_table/1"><code·class="inline">mnesia:read_lock_table(Tab)</code></a>·sets·a·read·lock·on | 334 | operations:</p><ul><li><a·href="mnesia.html#read_lock_table/1"><code·class="inline">mnesia:read_lock_table(Tab)</code></a>·sets·a·read·lock·on |
| 335 | table·<code·class="inline">Tab</code>.</li><li><a·href="mnesia.html#write_lock_table/1"><code·class="inline">mnesia:write_lock_table(Tab)</code></a>·sets·a·write·lock | 335 | table·<code·class="inline">Tab</code>.</li><li><a·href="mnesia.html#write_lock_table/1"><code·class="inline">mnesia:write_lock_table(Tab)</code></a>·sets·a·write·lock |
| 336 | on·table·<code·class="inline">Tab</code>.</li></ul><p>Alternative·syntax·for·acquisition·of·table·locks·is·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">lock</span><span·class="p"·data-group-id="8640799729-1">(</span><span·class="p"·data-group-id="8640799729-2">{</span><span·class="ss">table</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Tab</span><span·class="p"·data-group-id="8640799729-2">}</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">read</span><span·class="p"·data-group-id="8640799729-1">)</span><span·class="w"> | ||
| 337 | 336 | on·table·<code·class="inline">Tab</code>.</li></ul><p>Alternative·syntax·for·acquisition·of·table·locks·is·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">lock</span><spa[·...·truncated·by·diffoscope;·len:·403,·SHA:·3e4e5c8e64a36a088eca0bfb8c837ff83e83241bcec49b0c10187e8e04824ecf·...·] | |
| 337 | </span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">lock</span><span·class="p"·data-group-id="3739336083-3">(</span><span·class="p"·data-group-id="3739336083-4">{</span><span·class="ss">table</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Tab</span><span·class="p"·data-group-id="3739336083-4">}</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">write</span><span·class="p"·data-group-id="3739336083-3">)</span></code></pre><p>The·matching·operations·in·<code·class="inline">Mnesia</code>·can·either·lock·the·entire·table·or·only·a | ||
| 338 | single·record·(when·the·key·is·bound·in·the·pattern).</p><h3·id="global-locks"·class="section-heading"> | 338 | single·record·(when·the·key·is·bound·in·the·pattern).</p><h3·id="global-locks"·class="section-heading"> |
| 339 | ··<a·href="#global-locks"·class="hover-link"> | 339 | ··<a·href="#global-locks"·class="hover-link"> |
| 340 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 340 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 341 | ··</a> | 341 | ··</a> |
| 342 | ··<span·class="text">Global·Locks</span> | 342 | ··<span·class="text">Global·Locks</span> |
| 343 | </h3> | 343 | </h3> |
| 344 | <p>Write·locks·are·normally·acquired·on·all·nodes·where·a·replica·of·the·table | 344 | <p>Write·locks·are·normally·acquired·on·all·nodes·where·a·replica·of·the·table |
| Offset 421, 86 lines modified | Offset 421, 86 lines modified | ||
| 421 | ··<span·class="text">Record·Names·versus·Table·Names</span> | 421 | ··<span·class="text">Record·Names·versus·Table·Names</span> |
| 422 | </h2> | 422 | </h2> |
| 423 | <p>In·<code·class="inline">Mnesia</code>,·all·records·in·a·table·must·have·the·same·name.·All·the·records | 423 | <p>In·<code·class="inline">Mnesia</code>,·all·records·in·a·table·must·have·the·same·name.·All·the·records |
| 424 | must·be·instances·of·the·same·record·type.·The·record·name,·however,·does·not | 424 | must·be·instances·of·the·same·record·type.·The·record·name,·however,·does·not |
| 425 | necessarily·have·to·be·the·same·as·the·table·name,·although·this·is·the·case·in | 425 | necessarily·have·to·be·the·same·as·the·table·name,·although·this·is·the·case·in |
| 426 | most·of·the·examples·in·this·User's·Guide.·If·a·table·is·created·without | 426 | most·of·the·examples·in·this·User's·Guide.·If·a·table·is·created·without |
| 427 | property·<code·class="inline">record_name</code>,·the·following·code·ensures·that·all·records·in·the | 427 | property·<code·class="inline">record_name</code>,·the·following·code·ensures·that·all·records·in·the |
| 428 | tables·have·the·same·name·as·the·table:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">create_table</span><span·class="p"·data-group-id=" | 428 | tables·have·the·same·name·as·the·table:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">create_table</span><span·class="p"·data-group-id="3448577058-1">(</span><span·class="ss">subscriber</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3448577058-2">[</span><span·class="p"·data-group-id="3448577058-2">]</span><span·class="p"·data-group-id="3448577058-1">)</span></code></pre><p>However,·if·the·table·is·created·with·an·explicit·record·name·as·argument,·as |
| 429 | shown·in·the·following·example,·subscriber·records·can·be·stored·in·both·of·the | 429 | shown·in·the·following·example,·subscriber·records·can·be·stored·in·both·of·the |
| 430 | tables·regardless·of·the·table·names:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">TabDef</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 430 | tables·regardless·of·the·table·names:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">TabDef</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="1390119328-1">[</span><span·class="p"·data-group-id="1390119328-2">{</span><span·class="ss">record_name</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">subscriber</span><span·class="p"·data-group-id="1390119328-2">}</span><span·class[·...·truncated·by·diffoscope;·len:·30,·SHA:·18cdd577422bc010f2befbb81270c4bea1a74bf53c9f9b5e6ba3bb62407e3b84·...·]-1">]</span><span·class="p">,</span><span·class="w"> |
| 431 | </span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">create_table</span><span·class="p"·data-group-id=" | 431 | </span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">create_table</span><span·class="p"·data-group-id="1390119328-3">(</span><span·class="ss">my_subscriber</span><span·class="p">,</span><span·class="w">·</span><span·class="n">TabDef</span><span·class="p"·data-group-id="1390119328-3">)</span><span·class="p">,</span><span·class="w"> |
| 432 | </span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">create_table</span><span·class="p"·data-group-id=" | 432 | </span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">create_table</span><span·class="p"·data-group-id="1390119328-4">(</span><span·class="ss">your_subscriber</span><span·class="p">,</span><span·class="w">·</span><span·class="n">TabDef</span><span·class="p"·data-group-id="1390119328-4">)</span><span·class="p">.</span></code></pre><p>To·access·such·tables,·simplified·access·functions·(as·described·earlier)·cannot |
| 433 | be·used.·For·example,·writing·a·subscriber·record·into·a·table·requires·the | 433 | be·used.·For·example,·writing·a·subscriber·record·into·a·table·requires·the |
| 434 | function·<a·href="mnesia.html#write/3"><code·class="inline">mnesia:write/3</code></a>·instead·of·the·simplified·functions·<a·href="mnesia.html#write/1"><code·class="inline">mnesia:write/1</code></a> | 434 | function·<a·href="mnesia.html#write/3"><code·class="inline">mnesia:write/3</code></a>·instead·of·the·simplified·functions·<a·href="mnesia.html#write/1"><code·class="inline">mnesia:write/1</code></a> |
| 435 | and·<a·href="mnesia.html#s_write/1"><code·class="inline">mnesia:s_write/1</code></a>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">write</span><span·class="p"·data-group-id=" | 435 | and·<a·href="mnesia.html#s_write/1"><code·class="inline">mnesia:s_write/1</code></a>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">write</span><span·class="p"·data-group-id="3269252220-1">(</span><span·class="ss">subscriber</span><span·class="p">,</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">subscriber</span><span·class="p"·data-group-id="3269252220-2">{</span><span·class="p"·data-group-id="3269252220[·...·truncated·by·diffoscope;·len:·130,·SHA:·b7b30b30cb9f22a38e11b5673e0380ec5a4a5fd42780ab3f226aa9d3829d6948·...·]-1">)</span><span·class="w"> |
| 436 | </span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">write</span><span·class="p"·data-group-id=" | 436 | </span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">write</span><span·class="p"·data-group-id="3269252220-3">(</span><span·class="ss">my_subscriber</span><span·class="p">,</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">subscriber</span><span·class="p"·data-group-id="3269252220-4">{</span><span·class="p"·data-group-id="3269252[·...·truncated·by·diffoscope;·len:·140,·SHA:·ec0ca6e03a5879c8a50e3affc9ce8cbec9a47120c2749c94c7f8660c825f2b58·...·]-3">)</span><span·class="w"> |
| 437 | </span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">write</span><span·class="p"·data-group-id=" | 437 | </span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">write</span><span·class="p"·data-group-id="3269252220-5">(</span><span·class="ss">your_subscriber</span><span·class="p">,</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">subscriber</span><span·class="p"·data-group-id="3269252220-6">{</span><span·class="p"·data-group-id="32692[·...·truncated·by·diffoscope;·len:·135,·SHA:·0a473ed9a51dee41bf94a0711dbf225ef94dc3ed362b818991652e717c95796d·...·]-5">)</span></code></pre><p>The·following·simple·code·illustrates·the·relationship·between·the·simplified |
| 438 | access·functions·used·in·most·of·the·examples·and·their·more·flexible | 438 | access·functions·used·in·most·of·the·examples·and·their·more·flexible |
| 439 | counterparts:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">dirty_write</span><span·class="p"·data-group-id="2 | 439 | counterparts:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">dirty_write</span><span·class="p"·data-group-id="2896663303-1">(</span><span·class="n">Record</span><span·class="p"·data-group-id="2896663303-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 440 | ··</span><span·class="n">Tab</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">element</span><span·class="p"·data-group-id="2 | 440 | ··</span><span·class="n">Tab</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">element</span><span·class="p"·data-group-id="2896663303-2">(</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Record</span><span·class="p"·data-group-id="2896663303-2">)</span><span·class="p">,</span><span·class="w"> |
| 441 | ··</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">dirty_write</span><span·class="p"·data-group-id="2 | 441 | ··</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">dirty_write</span><span·class="p"·data-group-id="2896663303-3">(</span><span·class="n">Tab</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Record</span><span·class="p"·data-group-id="2896663303-3">)</span><span·class="p">.</span><span·class="w"> |
| 442 | </span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">dirty_delete</span><span·class="p"·data-group-id="2 | 442 | </span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">dirty_delete</span><span·class="p"·data-group-id="2896663303-4">(</span><span·class="p"·data-group-id="2896663303-5">{</span><span·class="n">Tab</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Key</span><span·class="p"·data-group-id="2896663303-5">}</span><span·class="p"·data-group-id[·...·truncated·by·diffoscope;·len:·12,·SHA:·acb27f758241e09240ed3ef1c88cf828a1d65bc8bdc303d07ae4fbcb6c3d6e79·...·]-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 443 | ··</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">dirty_delete</span><span·class="p"·data-group-id="2 | 443 | ··</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">dirty_delete</span><span·class="p"·data-group-id="2896663303-6">(</span><span·class="n">Tab</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Key</span><span·class="p"·data-group-id="2896663303-6">)</span><span·class="p">.</span><span·class="w"> |
| 444 | </span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">dirty_delete_object</span><span·class="p"·data-group-id="2 | 444 | </span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">dirty_delete_object</span><span·class="p"·data-group-id="2896663303-7">(</span><span·class="n">Record</span><span·class="p"·data-group-id="2896663303-7">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 445 | ··</span><span·class="n">Tab</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">element</span><span·class="p"·data-group-id="2 | 445 | ··</span><span·class="n">Tab</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">element</span><span·class="p"·data-group-id="2896663303-8">(</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Record</span><span·class="p"·data-group-id="2896663303-8">)</span><span·class="p">,</span><span·class="w"> |
| 446 | ··</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">dirty_delete_object</span><span·class="p"·data-group-id="2 | 446 | ··</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">dirty_delete_object</span><span·class="p"·data-group-id="2896663303-9">(</span><span·class="n">Tab</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Record</span><span·class="p"·data-group-id="2896663303-9">)</span><span·class="w"> |
| 447 | </span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">dirty_update_counter</span><span·class="p"·data-group-id="2 | 447 | </span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">dirty_update_counter</span><span·class="p"·data-group-id="2896663303-10">(</span><span·class="p"·data-group-id="2896663303-11">{</span><span·class="n">Tab</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Key</span><span·class="p"·data-group-id="2896663303-11">}</span><span·class="p">,</span><s[·...·truncated·by·diffoscope;·len:·90,·SHA:·5f2bff6969b91bf892be44930dbaea749a1e7e598ac1bd3ab82641ecaa533a17·...·]-10">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 448 | ··</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">dirty_update_counter</span><span·class="p"·data-group-id="2 | 448 | ··</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">dirty_update_counter</span><span·class="p"·data-group-id="2896663303-12">(</span><span·class="n">Tab</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Key</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Incr</span><span·class="p"·data-group-id="2896663303-12">)</span><span·class="p">.</span><span·class="w"> |
| 449 | </span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">dirty_read</span><span·class="p"·data-group-id="2 | 449 | </span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">dirty_read</span><span·class="p"·data-group-id="2896663303-13">(</span><span·class="p"·data-group-id="2896663303-14">{</span><span·class="n">Tab</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Key</span><span·class="p"·data-group-id="2896663303-14">}</span><span·class="p"·data-group[·...·truncated·by·diffoscope;·len:·15,·SHA:·eb510c53605b5b73a0da27b343b0f192fb2a7fde2a017f4a3969bdbccdcbeac5·...·]-13">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 450 | ··</span><span·class="n">Tab</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">element</span><span·class="p"·data-group-id="2 | 450 | ··</span><span·class="n">Tab</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">element</span><span·class="p"·data-group-id="2896663303-15">(</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Record</span><span·class="p"·data-group-id="2896663303-15">)</span><span·class="p">,</span><span·class="w"> |
| 451 | ··</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">dirty_read</span><span·class="p"·data-group-id="2 | 451 | ··</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">dirty_read</span><span·class="p"·data-group-id="2896663303-16">(</span><span·class="n">Tab</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Key</span><span·class="p"·data-group-id="2896663303-16">)</span><span·class="p">.</span><span·class="w"> |
| 452 | </span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">dirty_match_object</span><span·class="p"·data-group-id="2 | 452 | </span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">dirty_match_object</span><span·class="p"·data-group-id="2896663303-17">(</span><span·class="n">Pattern</span><span·class="p"·data-group-id="2896663303-17">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 453 | ··</span><span·class="n">Tab</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">element</span><span·class="p"·data-group-id="2 | 453 | ··</span><span·class="n">Tab</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">element</span><span·class="p"·data-group-id="2896663303-18">(</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Pattern</span><span·class="p"·data-group-id="2896663303-18">)</span><span·class="p">,</span><span·class="w"> |
| 454 | ··</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">dirty_match_object</span><span·class="p"·data-group-id="2 | 454 | ··</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">dirty_match_object</span><span·class="p"·data-group-id="2896663303-19">(</span><span·class="n">Tab</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Pattern</span><span·class="p"·data-group-id="2896663303-19">)</span><span·class="p">.</span><span·class="w"> |
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| 163 | different·Erlang·nodes·in·various·ways.·The·<code·class="inline">Mnesia</code>·programmer·does·not·need·to | 163 | different·Erlang·nodes·in·various·ways.·The·<code·class="inline">Mnesia</code>·programmer·does·not·need·to |
| 164 | state·where·the·different·tables·reside,·only·the·names·of·the·different·tables | 164 | state·where·the·different·tables·reside,·only·the·names·of·the·different·tables |
| 165 | need·to·be·specified·in·the·program·code.·This·is·known·as·"location | 165 | need·to·be·specified·in·the·program·code.·This·is·known·as·"location |
| 166 | transparency"·and·is·an·important·concept.·In·particular:</p><ul><li><p>A·program·works·regardless·of·the·data·location.·It·makes·no·difference | 166 | transparency"·and·is·an·important·concept.·In·particular:</p><ul><li><p>A·program·works·regardless·of·the·data·location.·It·makes·no·difference |
| 167 | whether·the·data·resides·on·the·local·node·or·on·a·remote·node.</p><p>Notice·that·the·program·runs·slower·if·the·data·is·located·on·a·remote·node.</p></li><li><p>The·database·can·be·reconfigured,·and·tables·can·be·moved·between·nodes.·These | 167 | whether·the·data·resides·on·the·local·node·or·on·a·remote·node.</p><p>Notice·that·the·program·runs·slower·if·the·data·is·located·on·a·remote·node.</p></li><li><p>The·database·can·be·reconfigured,·and·tables·can·be·moved·between·nodes.·These |
| 168 | operations·do·not·affect·the·user·programs.</p></li></ul><p>It·has·previously·been·shown·that·each·table·has·a·number·of·system·attributes, | 168 | operations·do·not·affect·the·user·programs.</p></li></ul><p>It·has·previously·been·shown·that·each·table·has·a·number·of·system·attributes, |
| 169 | such·as·<code·class="inline">index</code>·and·<code·class="inline">type</code>.</p><p>Table·attributes·are·specified·when·the·table·is·created.·For·example,·the | 169 | such·as·<code·class="inline">index</code>·and·<code·class="inline">type</code>.</p><p>Table·attributes·are·specified·when·the·table·is·created.·For·example,·the |
| 170 | following·function·creates·a·table·with·two·RAM·replicas:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">create_table</span><span·class="p"·data-group-id=" | 170 | following·function·creates·a·table·with·two·RAM·replicas:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">create_table</span><span·class="p"·data-group-id="5763373698-1">(</span><span·class="ss">foo</span><span·class="p">,</span><span·class="w"> |
| 171 | ····················</span><span·class="p"·data-group-id=" | 171 | ····················</span><span·class="p"·data-group-id="5763373698-2">[</span><span·class="p"·data-group-id="5763373698-3">{</span><span·class="ss">ram_copies</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="5763373698-4">[</span><span·class="n">N1</span><span·class="p">,</sp[·...·truncated·by·diffoscope;·len:·146,·SHA:·bad07c6f57e72a08c0887dc26f303a096b0b0628197c3eb5a6e095a8d5b8d576·...·]-3">}</span><span·class="p">,</span><span·class="w"> |
| 172 | ·····················</span><span·class="p"·data-group-id=" | 172 | ·····················</span><span·class="p"·data-group-id="5763373698-5">{</span><span·class="ss">attributes</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">record_info</span><span·class="p"·data-group-id="5763373698-6">(</span><span·class="ss">fields</span><span·class="p">,</span><span·clas[·...·truncated·by·diffoscope;·len:·241,·SHA:·24b66a422a5f46928b3466285903deca78582d207f907df74a77e0c1afa07d34·...·]-1">)</span><span·class="p">.</span></code></pre><p>Tables·can·also·have·the·following·properties,·where·each·attribute·has·a·list |
| 173 | of·Erlang·nodes·as·its·value:</p><ul><li><p><code·class="inline">ram_copies</code>.·The·value·of·the·node·list·is·a·list·of·Erlang·nodes,·and·a·RAM | 173 | of·Erlang·nodes·as·its·value:</p><ul><li><p><code·class="inline">ram_copies</code>.·The·value·of·the·node·list·is·a·list·of·Erlang·nodes,·and·a·RAM |
| 174 | replica·of·the·table·resides·on·each·node·in·the·list.</p><p>Notice·that·no·disc·operations·are·performed·when·a·program·executes·write | 174 | replica·of·the·table·resides·on·each·node·in·the·list.</p><p>Notice·that·no·disc·operations·are·performed·when·a·program·executes·write |
| 175 | operations·to·these·replicas.·However,·if·permanent·RAM·replicas·are·required, | 175 | operations·to·these·replicas.·However,·if·permanent·RAM·replicas·are·required, |
| 176 | the·following·alternatives·are·available:</p><ol><li>The·function·<a·href="mnesia.html#dump_tables/1"><code·class="inline">mnesia:dump_tables/1</code></a>·can·be·used·to·dump·RAM·table·replicas | 176 | the·following·alternatives·are·available:</p><ol><li>The·function·<a·href="mnesia.html#dump_tables/1"><code·class="inline">mnesia:dump_tables/1</code></a>·can·be·used·to·dump·RAM·table·replicas |
| 177 | to·disc.</li><li>The·table·replicas·can·be·backed·up,·either·from·RAM,·or·from·disc·if | 177 | to·disc.</li><li>The·table·replicas·can·be·backed·up,·either·from·RAM,·or·from·disc·if |
| 178 | dumped·there·with·this·function.</li></ol></li><li><p><code·class="inline">disc_copies</code>.·The·value·of·the·attribute·is·a·list·of·Erlang·nodes,·and·a | 178 | dumped·there·with·this·function.</li></ol></li><li><p><code·class="inline">disc_copies</code>.·The·value·of·the·attribute·is·a·list·of·Erlang·nodes,·and·a |
| 179 | replica·of·the·table·resides·both·in·RAM·and·on·disc·on·each·node·in·the·list. | 179 | replica·of·the·table·resides·both·in·RAM·and·on·disc·on·each·node·in·the·list. |
| Offset 218, 60 lines modified | Offset 218, 60 lines modified | ||
| 218 | <code·class="inline">mnesia_frag</code>·can·be·used·as·a·<code·class="inline">mnesia_access</code>·callback·module.</p><p>At·each·record·access,·<code·class="inline">mnesia_frag</code>·first·computes·a·hash·value·from·the·record | 218 | <code·class="inline">mnesia_frag</code>·can·be·used·as·a·<code·class="inline">mnesia_access</code>·callback·module.</p><p>At·each·record·access,·<code·class="inline">mnesia_frag</code>·first·computes·a·hash·value·from·the·record |
| 219 | key.·Second,·the·name·of·the·table·fragment·is·determined·from·the·hash·value. | 219 | key.·Second,·the·name·of·the·table·fragment·is·determined·from·the·hash·value. |
| 220 | Finally·the·actual·table·access·is·performed·by·the·same·functions·as·for | 220 | Finally·the·actual·table·access·is·performed·by·the·same·functions·as·for |
| 221 | non-fragmented·tables.·When·the·key·is·not·known·beforehand,·all·fragments·are | 221 | non-fragmented·tables.·When·the·key·is·not·known·beforehand,·all·fragments·are |
| 222 | searched·for·matching·records.</p><p>Notice·that·in·<code·class="inline">ordered_set</code>·tables,·the·records·are·ordered·per·fragment,·and | 222 | searched·for·matching·records.</p><p>Notice·that·in·<code·class="inline">ordered_set</code>·tables,·the·records·are·ordered·per·fragment,·and |
| 223 | the·order·is·undefined·in·results·returned·by·<code·class="inline">select</code>·and·<code·class="inline">match_object</code>,·as | 223 | the·order·is·undefined·in·results·returned·by·<code·class="inline">select</code>·and·<code·class="inline">match_object</code>,·as |
| 224 | well·as·<code·class="inline">first</code>,·<code·class="inline">next</code>,·<code·class="inline">prev</code>·and·<code·class="inline">last</code>.</p><p>The·following·code·illustrates·how·a·<code·class="inline">Mnesia</code>·table·is·converted·to·be·a | 224 | well·as·<code·class="inline">first</code>,·<code·class="inline">next</code>,·<code·class="inline">prev</code>·and·<code·class="inline">last</code>.</p><p>The·following·code·illustrates·how·a·<code·class="inline">Mnesia</code>·table·is·converted·to·be·a |
| 225 | fragmented·table·and·how·more·fragments·are·added·later:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Eshell</span><span·class="w">·</span><span·class="n">V15</span><span·class="p">.</span><span·class="mf">1.2</span><span·class="w">·</span><span·class="p"·data-group-id="8 | 225 | fragmented·table·and·how·more·fragments·are·added·later:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Eshell</span><span·class="w">·</span><span·class="n">V15</span><span·class="p">.</span><span·class="mf">1.2</span><span·class="w">·</span><span·class="p"·data-group-id="8701442038-1">(</span><span·class="ss">press</span><span·class="w">·</span><span·class="n">Ctrl</span><span·class="o">+</span><span·class="n">G</span><span·class="w">·</span><span·class="ss">to</span><span·class="w">·</span><span·class="ss">abort</span><spa[·...·truncated·by·diffoscope;·len:·398,·SHA:·d08490615a6020e6d5fd17b7b7783a7df57816f35bd5fb81bea29cfcbacd4c82·...·]-1">)</span><span·class="gp·unselectable"> |
| 226 | (a@sam)1>·</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id="8 | 226 | (a@sam)1>·</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id="8701442038-3">(</span><span·class="p"·data-group-id="8701442038-3">)</span><span·class="p">.</span><span·class="w"> |
| 227 | </span><span·class="nf">ok</span><span·class="w"> | 227 | </span><span·class="nf">ok</span><span·class="w"> |
| 228 | </span><span·class="p"·data-group-id="8 | 228 | </span><span·class="p"·data-group-id="8701442038-4">(</span><span·class="ss">a@sam</span><span·class="p"·data-group-id="8701442038-4">)</span><span·class="mi">2</span><span·class="o">></span><span·class="w">·</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">system[·...·truncated·by·diffoscope;·len:·146,·SHA:·f1196ba6f331212e521b5bdfc72a85bf93ff3fc5faf60fe1da514186ba9f4e13·...·]-5">)</span><span·class="p">.</span><span·class="w"> |
| 229 | </span><span·class="p"·data-group-id="8 | 229 | </span><span·class="p"·data-group-id="8701442038-6">[</span><span·class="ss">b@sam</span><span·class="p">,</span><span·class="ss">c@sam</span><span·class="p">,</span><span·class="ss">a@sam</span><span·class="p"·data-group-id="8701442038-6">]</span><span·class="gp·unselectable"> |
| 230 | (a@sam)3>·</span><span·class="n">Tab</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">dictionary</span><span·class="p">.</span><span·class="w"> | 230 | (a@sam)3>·</span><span·class="n">Tab</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">dictionary</span><span·class="p">.</span><span·class="w"> |
| 231 | </span><span·class="nf">dictionary</span><span·class="w"> | 231 | </span><span·class="nf">dictionary</span><span·class="w"> |
| 232 | </span><span·class="p"·data-group-id="8 | 232 | </span><span·class="p"·data-group-id="8701442038-7">(</span><span·class="ss">a@sam</span><span·class="p"·data-group-id="8701442038-7">)</span><span·class="mi">4</span><span·class="o">></span><span·class="w">·</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">create[·...·truncated·by·diffoscope;·len:·691,·SHA:·ede4f5c411d5ac1a66650a285dfd954937ef3ebaff25aa84683812eb19b0da62·...·]-8">)</span><span·class="p">.</span><span·class="w"> |
| 233 | </span><span·class="p"·data-group-id="8 | 233 | </span><span·class="p"·data-group-id="8701442038-12">{</span><span·class="ss">atomic</span><span·class="p">,</span><span·class="ss">ok</span><span·class="p"·data-group-id="8701442038-12">}</span><span·class="gp·unselectable"> |
| 234 | (a@sam)5>·</span><span·class="n">Write</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id="8 | 234 | (a@sam)5>·</span><span·class="n">Write</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id="8701442038-13">(</span><span·class="n">Keys</span><span·class="p"·data-group-id="8701442038-13">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="p"·data-group-id="8701442038-14">[</span><span·class="nc">mnesia[·...·truncated·by·diffoscope;·len:·663,·SHA:·f666a0227e80bd88534b9e5c05c1dd53ae5c04ec1a075e2b4c9f05795b50463e·...·]-14">]</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">ok</span><span·class="w">·</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> |
| 235 | </span><span·class="p">#</span><span·class="n">Fun</span><span·class="o"><</span><span·class="ss">erl_eval</span><span·class="o">></span><span·class="gp·unselectable"> | 235 | </span><span·class="p">#</span><span·class="n">Fun</span><span·class="o"><</span><span·class="ss">erl_eval</span><span·class="o">></span><span·class="gp·unselectable"> |
| 236 | (a@sam)6>·</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">activity</span><span·class="p"·data-group-id="8 | 236 | (a@sam)6>·</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">activity</span><span·class="p"·data-group-id="8701442038-17">(</span><span·class="ss">sync_dirty</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Write</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8701442038-18">[</span><span·class="nc">lists[·...·truncated·by·diffoscope;·len:·444,·SHA:·56006e31252fc9b73e9ebe58aaf876b9513b9f41b77ca08601855031c36484d3·...·]-17">)</span><span·class="p">.</span><span·class="w"> |
| 237 | </span><span·class="nf">ok</span><span·class="w"> | 237 | </span><span·class="nf">ok</span><span·class="w"> |
| 238 | </span><span·class="p"·data-group-id="8 | 238 | </span><span·class="p"·data-group-id="8701442038-20">(</span><span·class="ss">a@sam</span><span·class="p"·data-group-id="8701442038-20">)</span><span·class="mi">7</span><span·class="o">></span><span·class="w">·</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">chan[·...·truncated·by·diffoscope;·len:·485,·SHA:·7c41f045ea28dff36c88c6e1d0c4bf17072c765c3776fe13622f135ec6256c34·...·]-21">)</span><span·class="p">.</span><span·class="w"> |
| 239 | </span><span·class="p"·data-group-id="8 | 239 | </span><span·class="p"·data-group-id="8701442038-24">{</span><span·class="ss">atomic</span><span·class="p">,</span><span·class="ss">ok</span><span·class="p"·data-group-id="8701442038-24">}</span><span·class="gp·unselectable"> |
| 240 | (a@sam)8>·</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">table_info</span><span·class="p"·data-group-id="8 | 240 | (a@sam)8>·</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">table_info</span><span·class="p"·data-group-id="8701442038-25">(</span><span·class="n">Tab</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">frag_properties</span><span·class="p"·data-group-id="8701442038-25">)</span><span·class="p">.</span><span·class="w"> |
| 241 | </span><span·class="p"·data-group-id="8 | 241 | </span><span·class="p"·data-group-id="8701442038-26">[</span><span·class="p"·data-group-id="8701442038-27">{</span><span·class="ss">base_table</span><span·class="p">,</span><span·class="ss">dictionary</span><span·class="p"·data-group-id="8701442038-27">}</span><span·class="p">,</span><span·class="w"> |
| 242 | ·</span><span·class="p"·data-group-id="8 | 242 | ·</span><span·class="p"·data-group-id="8701442038-28">{</span><span·class="ss">foreign_key</span><span·class="p">,</span><span·class="ss">undefined</span><span·class="p"·data-group-id="8701442038-28">}</span><span·class="p">,</span><span·class="w"> |
| 243 | ·</span><span·class="p"·data-group-id="8 | 243 | ·</span><span·class="p"·data-group-id="8701442038-29">{</span><span·class="ss">hash_module</span><span·class="p">,</span><span·class="ss">mnesia_frag_hash</span><span·class="p"·data-group-id="8701442038-29">}</span><span·class="p">,</span><span·class="w"> |
| 244 | ·</span><span·class="p"·data-group-id="8 | 244 | ·</span><span·class="p"·data-group-id="8701442038-30">{</span><span·class="ss">hash_state</span><span·class="p">,</span><span·class="p"·data-group-id="8701442038-31">{</span><span·class="ss">hash_state</span><span·class="p">,</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi[·...·truncated·by·diffoscope;·len:·208,·SHA:·45c89d291948fa9a4353c27bb88639cc7d92ac2e70c7c2999522d90336f7e06e·...·]-30">}</span><span·class="p">,</span><span·class="w"> |
| 245 | ·</span><span·class="p"·data-group-id="8 | 245 | ·</span><span·class="p"·data-group-id="8701442038-32">{</span><span·class="ss">n_fragments</span><span·class="p">,</span><span·class="mi">1</span><span·class="p"·data-group-id="8701442038-32">}</span><span·class="p">,</span><span·class="w"> |
| 246 | ·</span><span·class="p"·data-group-id="8 | 246 | ·</span><span·class="p"·data-group-id="8701442038-33">{</span><span·class="ss">node_pool</span><span·class="p">,</span><span·class="p"·data-group-id="8701442038-34">[</span><span·class="ss">a@sam</span><span·class="p">,</span><span·class="ss">b@sam</span><span·class="p">,</span><span·class="ss">[·...·truncated·by·diffoscope;·len:·161,·SHA:·7c03efd5444f500ba81f91d09a2e66cf52161f0ddb3d759d79b6a2bb8866caca·...·]-26">]</span><span·class="gp·unselectable"> |
| 247 | (a@sam)9>·</span><span·class="n">Info</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id="8 | 247 | (a@sam)9>·</span><span·class="n">Info</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id="8701442038-35">(</span><span·class="n">Item</span><span·class="p"·data-group-id="8701442038-35">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">table_[·...·truncated·by·diffoscope;·len:·207,·SHA:·0902d811f490b8e11412eb7976fd4d9c4e592e6c5b5fc0b62cf261454ff3311f·...·]-36">)</span><span·class="w">·</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> |
| 248 | </span><span·class="p">#</span><span·class="n">Fun</span><span·class="o"><</span><span·class="ss">erl_eval</span><span·class="o">></span><span·class="gp·unselectable"> | 248 | </span><span·class="p">#</span><span·class="n">Fun</span><span·class="o"><</span><span·class="ss">erl_eval</span><span·class="o">></span><span·class="gp·unselectable"> |
| 249 | (a@sam)10>·</span><span·class="n">Dist</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">activity</span><span·class="p"·data-group-id="8 | 249 | (a@sam)10>·</span><span·class="n">Dist</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">activity</span><span·class="p"·data-group-id="8701442038-37">(</span><span·class="ss">sync_dirty</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Info</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8701442038-38">[</span><span·class="ss">frag_d[·...·truncated·by·diffoscope;·len:·188,·SHA:·47eb6c83b66ebefb334e17a389a1b34df1c272fcb7379a6ca516ea7f6e65cd1f·...·]-37">)</span><span·class="p">.</span><span·class="w"> |
| 250 | </span><span·class="p"·data-group-id="8 | 250 | </span><span·class="p"·data-group-id="8701442038-39">[</span><span·class="p"·data-group-id="8701442038-40">{</span><span·class="ss">c@sam</span><span·class="p">,</span><span·class="mi">0</span><span·class="p"·data-group-id="8701442038-40">}</span><span·class="p">,</span><span·class="p"·data-gro[·...·truncated·by·diffoscope;·len:·413,·SHA:·53287ac00eacc0a2cc201dfc039b003b74d0a23268336242598a88258c9ded49·...·]-39">]</span><span·class="gp·unselectable"> |
| 251 | (a@sam)11>·</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">change_table_frag</span><span·class="p"·data-group-id="8 | 251 | (a@sam)11>·</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">change_table_frag</span><span·class="p"·data-group-id="8701442038-43">(</span><span·class="n">Tab</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8701442038-44">{</span><span·class="ss">add_frag</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Dist</span[·...·truncated·by·diffoscope;·len:·96,·SHA:·91e8abb04c0200c570703abda2420d5faf951d8d386de2ed0d0db676e427cb0e·...·]-43">)</span><span·class="p">.</span><span·class="w"> |
| 252 | </span><span·class="p"·data-group-id="8 | 252 | </span><span·class="p"·data-group-id="8701442038-45">{</span><span·class="ss">atomic</span><span·class="p">,</span><span·class="ss">ok</span><span·class="p"·data-group-id="8701442038-45">}</span><span·class="gp·unselectable"> |
| 253 | (a@sam)12>·</span><span·class="n">Dist2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">activity</span><span·class="p"·data-group-id="8 | 253 | (a@sam)12>·</span><span·class="n">Dist2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">activity</span><span·class="p"·data-group-id="8701442038-46">(</span><span·class="ss">sync_dirty</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Info</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8701442038-47">[</span><span·class="ss">frag_d[·...·truncated·by·diffoscope;·len:·188,·SHA:·69e82b0770f6e25e995bf234f094551f6179fb9a88a4341d1c23280e053a91e3·...·]-46">)</span><span·class="p">.</span><span·class="w"> |
| 254 | </span><span·class="p"·data-group-id="8 | 254 | </span><span·class="p"·data-group-id="8701442038-48">[</span><span·class="p"·data-group-id="8701442038-49">{</span><span·class="ss">b@sam</span><span·class="p">,</span><span·class="mi">1</span><span·class="p"·data-group-id="8701442038-49">}</span><span·class="p">,</span><span·class="p"·data-gro[·...·truncated·by·diffoscope;·len:·413,·SHA:·74659db88d0b479818dc773c605524969a0ac535c25a52ee66ffbdd3081a8ac6·...·]-48">]</span><span·class="gp·unselectable"> |
| 255 | (a@sam)13>·</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">change_table_frag</span><span·class="p"·data-group-id="8 | 255 | (a@sam)13>·</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">change_table_frag</span><span·class="p"·data-group-id="8701442038-52">(</span><span·class="n">Tab</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8701442038-53">{</span><span·class="ss">add_frag</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Dist2</spa[·...·truncated·by·diffoscope;·len:·97,·SHA:·ec86a735f6c59b12ecb8d5bcef66593c8bf0fe74671b95b41f992384eaffae20·...·]-52">)</span><span·class="p">.</span><span·class="w"> |
| 256 | </span><span·class="p"·data-group-id="8 | 256 | </span><span·class="p"·data-group-id="8701442038-54">{</span><span·class="ss">atomic</span><span·class="p">,</span><span·class="ss">ok</span><span·class="p"·data-group-id="8701442038-54">}</span><span·class="gp·unselectable"> |
| 257 | (a@sam)14>·</span><span·class="n">Dist3</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">activity</span><span·class="p"·data-group-id="8 | 257 | (a@sam)14>·</span><span·class="n">Dist3</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">activity</span><span·class="p"·data-group-id="8701442038-55">(</span><span·class="ss">sync_dirty</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Info</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8701442038-56">[</span><span·class="ss">frag_d[·...·truncated·by·diffoscope;·len:·188,·SHA:·e6c221920d8112fc3a64698a1a1fb7a3f54296b703aab9c620d4209bb7c3e4a0·...·]-55">)</span><span·class="p">.</span><span·class="w"> |
| 258 | </span><span·class="p"·data-group-id="8 | 258 | </span><span·class="p"·data-group-id="8701442038-57">[</span><span·class="p"·data-group-id="8701442038-58">{</span><span·class="ss">a@sam</span><span·class="p">,</span><span·class="mi">2</span><span·class="p"·data-group-id="8701442038-58">}</span><span·class="p">,</span><span·class="p"·data-gro[·...·truncated·by·diffoscope;·len:·413,·SHA:·b292b775fbe99fcb3861a7410f09253726e32ba1e368fd664313bbf9833fa274·...·]-57">]</span><span·class="gp·unselectable"> |
| 259 | (a@sam)15>·</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">change_table_frag</span><span·class="p"·data-group-id="8 | 259 | (a@sam)15>·</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">change_table_frag</span><span·class="p"·data-group-id="8701442038-61">(</span><span·class="n">Tab</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8701442038-62">{</span><span·class="ss">add_frag</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Dist3</spa[·...·truncated·by·diffoscope;·len:·97,·SHA:·c501b44527c2f81601fd3758363a1d45bdb1ccd3a6c914ff7d24a1713ba64dc1·...·]-61">)</span><span·class="p">.</span><span·class="w"> |
| 260 | </span><span·class="p"·data-group-id="8 | 260 | </span><span·class="p"·data-group-id="8701442038-63">{</span><span·class="ss">atomic</span><span·class="p">,</span><span·class="ss">ok</span><span·class="p"·data-group-id="8701442038-63">}</span><span·class="gp·unselectable"> |
| 261 | (a@sam)16>·</span><span·class="n">Read</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id="8 | 261 | (a@sam)16>·</span><span·class="n">Read</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id="8701442038-64">(</span><span·class="n">Key</span><span·class="p"·data-group-id="8701442038-64">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">read</s[·...·truncated·by·diffoscope;·len:·307,·SHA:·61b2ad800e01a8f336468ead3577eaff93857307b8b4f7bdf0a6adedcfc29049·...·]-65">)</span><span·class="w">·</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> |
| 262 | </span><span·class="p">#</span><span·class="n">Fun</span><span·class="o"><</span><span·class="ss">erl_eval</span><span·class="o">></span><span·class="gp·unselectable"> | 262 | </span><span·class="p">#</span><span·class="n">Fun</span><span·class="o"><</span><span·class="ss">erl_eval</span><span·class="o">></span><span·class="gp·unselectable"> |
| 263 | (a@sam)17>·</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">activity</span><span·class="p"·data-group-id="8 | 263 | (a@sam)17>·</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">activity</span><span·class="p"·data-group-id="8701442038-67">(</span><span·class="ss">transaction</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Read</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8701442038-68">[</span><span·class="mi">12</s[·...·truncated·by·diffoscope;·len:·182,·SHA:·693ceabe34466345408750f09c9ed45acedb2305bc4708c9317aa757e6e490fe·...·]-67">)</span><span·class="p">.</span><span·class="w"> |
| 264 | </span><span·class="p"·data-group-id="8 | 264 | </span><span·class="p"·data-group-id="8701442038-69">[</span><span·class="p"·data-group-id="8701442038-70">{</span><span·class="ss">dictionary</span><span·class="p">,</span><span·class="mi">12</span><span·class="p">,</span><span·class="o">-</span><span·class="mi">12</span><span·class="p"·data-g[·...·truncated·by·diffoscope;·len:·73,·SHA:·05167c568bf966f34b36d7e9561627abb2c6c704d2c40e4a3db6eddd5e2d7408·...·]-69">]</span><span·class="gp·unselectable"> |
| 265 | (a@sam)18>·</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">activity</span><span·class="p"·data-group-id="8 | 265 | (a@sam)18>·</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">activity</span><span·class="p"·data-group-id="8701442038-71">(</span><span·class="ss">sync_dirty</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Info</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8701442038-72">[</span><span·class="ss">frag_s[·...·truncated·by·diffoscope;·len:·188,·SHA:·fb1eea8a6997886c804f4f215837e68a0f77561b867370fc316515348b67c53f·...·]-71">)</span><span·class="p">.</span><span·class="w"> |
| 266 | </span><span·class="p"·data-group-id="8 | 266 | </span><span·class="p"·data-group-id="8701442038-73">[</span><span·class="p"·data-group-id="8701442038-74">{</span><span·class="ss">dictionary</span><span·class="p">,</span><span·class="mi">57</span><span·class="p"·data-group-id="8701442038-74">}</span><span·class="p">,</span><span·class="w"> |
| 267 | ·</span><span·class="p"·data-group-id="8 | 267 | ·</span><span·class="p"·data-group-id="8701442038-75">{</span><span·class="ss">dictionary_frag2</span><span·class="p">,</span><span·class="mi">63</span><span·class="p"·data-group-id="8701442038-75">}</span><span·class="p">,</span><span·class="w"> |
| 268 | ·</span><span·class="p"·data-group-id="8 | 268 | ·</span><span·class="p"·data-group-id="8701442038-76">{</span><span·class="ss">dictionary_frag3</span><span·class="p">,</span><span·class="mi">62</span><span·class="p"·data-group-id="8701442038-76">}</span><span·class="p">,</span><span·class="w"> |
| 269 | ·</span><span·class="p"·data-group-id="8 | 269 | ·</span><span·class="p"·data-group-id="8701442038-77">{</span><span·class="ss">dictionary_frag4</span><span·class="p">,</span><span·class="mi">74</span><span·class="p"·data-group-id="8701442038-77">}</span><span·class="p"·data-group-id="8701442038-73">]</span><span·class="w"> |
| 270 | </span><span·class="p"·data-group-id="8 | 270 | </span><span·class="p"·data-group-id="8701442038-78">(</span><span·class="ss">a@sam</span><span·class="p"·data-group-id="8701442038-78">)</span><span·class="mi">19</span><span·class="o">></span></code></pre><h3·id="fragmentation-properties"·class="section-heading"> |
| 271 | ··<a·href="#fragmentation-properties"·class="hover-link"> | 271 | ··<a·href="#fragmentation-properties"·class="hover-link"> |
| 272 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 272 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 273 | ··</a> | 273 | ··</a> |
| 274 | ··<span·class="text">Fragmentation·Properties</span> | 274 | ··<span·class="text">Fragmentation·Properties</span> |
| 275 | </h3> | 275 | </h3> |
| 276 | <p>The·table·property·<code·class="inline">frag_properties</code>·can·be·read·with·the·function | 276 | <p>The·table·property·<code·class="inline">frag_properties</code>·can·be·read·with·the·function |
| 277 | <a·href="mnesia.html#table_info/2"><code·class="inline">mnesia:table_info(Tab,·frag_properties)</code></a>.·The | 277 | <a·href="mnesia.html#table_info/2"><code·class="inline">mnesia:table_info(Tab,·frag_properties)</code></a>.·The |
| Offset 305, 72 lines modified | Offset 305, 72 lines modified | ||
| 305 | defaults·to·<code·class="inline">undefined</code>.·However,·if·the·foreign·key·is·set·to·something·else, | 305 | defaults·to·<code·class="inline">undefined</code>.·However,·if·the·foreign·key·is·set·to·something·else, |
| 306 | it·causes·the·default·values·of·the·other·fragmentation·properties·to·be·the | 306 | it·causes·the·default·values·of·the·other·fragmentation·properties·to·be·the |
| 307 | same·values·as·the·actual·fragmentation·properties·of·the·foreign·table.</p></li><li><p><strong><code·class="inline">{hash_module,·Atom}</code></strong>·-·Enables·definition·of·an·alternative·hashing | 307 | same·values·as·the·actual·fragmentation·properties·of·the·foreign·table.</p></li><li><p><strong><code·class="inline">{hash_module,·Atom}</code></strong>·-·Enables·definition·of·an·alternative·hashing |
| 308 | scheme.·The·module·must·implement·the·<a·href="mnesia_frag_hash.html"><code·class="inline">mnesia_frag_hash</code></a>·callback·behavior. | 308 | scheme.·The·module·must·implement·the·<a·href="mnesia_frag_hash.html"><code·class="inline">mnesia_frag_hash</code></a>·callback·behavior. |
| 309 | This·property·can·explicitly·be·set·at·table·creation.·Default·is | 309 | This·property·can·explicitly·be·set·at·table·creation.·Default·is |
| 310 | <code·class="inline">mnesia_frag_hash</code>.</p></li><li><p><strong><code·class="inline">{hash_state,·Term}</code></strong>·-·Enables·a·table-specific·parameterization·of·a | 310 | <code·class="inline">mnesia_frag_hash</code>.</p></li><li><p><strong><code·class="inline">{hash_state,·Term}</code></strong>·-·Enables·a·table-specific·parameterization·of·a |
| 311 | generic·hash·module.·This·property·can·explicitly·be·set·at·table·creation. | 311 | generic·hash·module.·This·property·can·explicitly·be·set·at·table·creation. |
| 312 | Default·is·<code·class="inline">undefined</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Eshell</span><span·class="w">·</span><span·class="n">V15</span><span·class="p">.</span><span·class="mf">1.2</span><span·class="w">·</span><span·class="p"·data-group-id=" | 312 | Default·is·<code·class="inline">undefined</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Eshell</span><span·class="w">·</span><span·class="n">V15</span><span·class="p">.</span><span·class="mf">1.2</span><span·class="w">·</span><span·class="p"·data-group-id="4763451015-1">(</span><span·class="ss">press</span><span·class="w">·</span><span·class="n">Ctrl</span><span·class="o">+</span><span·class="n">G</span><span·class="w">·</span><span·class="ss">to</span><span·class="w">·</span><span·class="ss">abort</span><sp[·...·truncated·by·diffoscope;·len:·399,·SHA:·886866a1a0620e4a0b678a39df606315396856cdb578e634d20da87c712d54b2·...·]-1">)</span><span·class="gp·unselectable"> |
| 313 | (a@sam)1>·</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id=" | 313 | (a@sam)1>·</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id="4763451015-3">(</span><span·class="p"·data-group-id="4763451015-3">)</span><span·class="p">.</span><span·class="w"> |
| 314 | </span><span·class="nf">ok</span><span·class="w"> | 314 | </span><span·class="nf">ok</span><span·class="w"> |
| 315 | </span><span·class="p"·data-group-id=" | 315 | </span><span·class="p"·data-group-id="4763451015-4">(</span><span·class="ss">a@sam</span><span·class="p"·data-group-id="4763451015-4">)</span><span·class="mi">2</span><span·class="o">></span><span·class="w">·</span><span·class="n">PrimProps</span><span·class="w">·</span><span·class="o">=</s[·...·truncated·by·diffoscope;·len:·811,·SHA:·876b8ee197ae6cbea0fe36977ac35053d1050f624b07e719e3dfe8a5d31b54d1·...·]-5">]</span><span·class="p">.</span><span·class="w"> |
| 316 | </span><span·class="p"·data-group-id=" | 316 | </span><span·class="p"·data-group-id="4763451015-10">[</span><span·class="p"·data-group-id="4763451015-11">{</span><span·class="ss">n_fragments</span><span·class="p">,</span><span·class="mi">7</span><span·class="p"·data-group-id="4763451015-11">}</span><span·class="p">,</span><span·class="p"·d[·...·truncated·by·diffoscope;·len:·326,·SHA:·46f24d60cedb50eb6e2067ec596c756204d69158d43b79f35cf2fa322026cddf·...·]-10">]</span><span·class="gp·unselectable"> |
| 317 | (a@sam)3>·</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">create_table</span><span·class="p"·data-group-id=" | 317 | (a@sam)3>·</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">create_table</span><span·class="p"·data-group-id="4763451015-14">(</span><span·class="ss">prim_dict</span><span·class="p">,</span><span·class="w"> |
| 318 | ······························</span><span·class="p"·data-group-id=" | 318 | ······························</span><span·class="p"·data-group-id="4763451015-15">[</span><span·class="p"·data-group-id="4763451015-16">{</span><span·class="ss">frag_properties</span><span·class="p">,</span><span·class="w">·</span><span·class="n">PrimProps</span><span·class="p"·data-group-id="4763451015-16">}</span><span·class="p">,</span><span·class="w"> |
| 319 | ·······························</span><span·class="p"·data-group-id=" | 319 | ·······························</span><span·class="p"·data-group-id="4763451015-17">{</span><span·class="ss">attributes</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4763451015-18">[</span><span·class="ss">prim_key</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">[·...·truncated·by·diffoscope;·len:·218,·SHA:·58cadbde2a335bc77d07544fd2a6334419df182d5256d3bbf9330630d874c5d9·...·]-14">)</span><span·class="p">.</span><span·class="w"> |
| 320 | </span><span·class="p"·data-group-id=" | 320 | </span><span·class="p"·data-group-id="4763451015-19">{</span><span·class="ss">atomic</span><span·class="p">,</span><span·class="ss">ok</span><span·class="p"·data-group-id="4763451015-19">}</span><span·class="gp·unselectable"> |
| 321 | (a@sam)4>·</span><span·class="n">SecProps</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 321 | (a@sam)4>·</span><span·class="n">SecProps</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="4763451015-20">[</span><span·class="p"·data-group-id="4763451015-21">{</span><span·class="ss">foreign_key</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4763451015-22">{</span><span·class="ss">prim_dict</span><span·cla[·...·truncated·by·diffoscope;·len:·219,·SHA:·922f9da5ff3247e6a0526e211b1e2ea7c3a8ebba3260797897b36fbc42a8a1fa·...·]-20">]</span><span·class="p">.</span><span·class="w"> |
| 322 | </span><span·class="p"·data-group-id=" | 322 | </span><span·class="p"·data-group-id="4763451015-23">[</span><span·class="p"·data-group-id="4763451015-24">{</span><span·class="ss">foreign_key</span><span·class="p">,</span><span·class="p"·data-group-id="4763451015-25">{</span><span·class="ss">prim_dict</span><span·class="p">,</span><span·cla[·...·truncated·by·diffoscope;·len:·171,·SHA:·195ef8a067f10d4467e69822df32b4cfa1aca22f65a0091d5101125c80e35a5f·...·]-23">]</span><span·class="gp·unselectable"> |
| 323 | (a@sam)5>·</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">create_table</span><span·class="p"·data-group-id=" | 323 | (a@sam)5>·</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">create_table</span><span·class="p"·data-group-id="4763451015-26">(</span><span·class="ss">sec_dict</span><span·class="p">,</span><span·class="w"> |
| 324 | ······························</span><span·class="p"·data-group-id=" | 324 | ······························</span><span·class="p"·data-group-id="4763451015-27">[</span><span·class="p"·data-group-id="4763451015-28">{</span><span·class="ss">frag_properties</span><span·class="p">,</span><span·class="w">·</span><span·class="n">SecProps</span><span·class="p"·data-group-id="4763451015-28">}</span><span·class="p">,</span><span·class="w"> |
| 325 | ·······························</span><span·class="p"·data-group-id=" | 325 | ·······························</span><span·class="p"·data-group-id="4763451015-29">{</span><span·class="ss">attributes</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4763451015-30">[</span><span·class="ss">sec_key</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">s[·...·truncated·by·diffoscope;·len:·216,·SHA:·8e899a89a18719fe9a900fb762a1a64afe03b204dcdfc5b33e064db65b09ce10·...·]-26">)</span><span·class="p">.</span><span·class="w"> |
| 326 | </span><span·class="p"·data-group-id=" | 326 | </span><span·class="p"·data-group-id="4763451015-31">{</span><span·class="ss">atomic</span><span·class="p">,</span><span·class="ss">ok</span><span·class="p"·data-group-id="4763451015-31">}</span><span·class="gp·unselectable"> |
| 327 | (a@sam)6>·</span><span·class="n">Write</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id=" | 327 | (a@sam)6>·</span><span·class="n">Write</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id="4763451015-32">(</span><span·class="n">Rec</span><span·class="p"·data-group-id="4763451015-32">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">write<[·...·truncated·by·diffoscope;·len:·127,·SHA:·7da9d9657751c37137cf35e5b24307ba5448ca2deec827a447f78e1e108c113f·...·]-33">)</span><span·class="w">·</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> |
| 328 | </span><span·class="p">#</span><span·class="n">Fun</span><span·class="o"><</span><span·class="ss">erl_eval</span><span·class="o">></span><span·class="gp·unselectable"> | 328 | </span><span·class="p">#</span><span·class="n">Fun</span><span·class="o"><</span><span·class="ss">erl_eval</span><span·class="o">></span><span·class="gp·unselectable"> |
| 329 | (a@sam)7>·</span><span·class="n">PrimKey</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">11</span><span·class="p">.</span><span·class="w"> | 329 | (a@sam)7>·</span><span·class="n">PrimKey</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">11</span><span·class="p">.</span><span·class="w"> |
| 330 | </span><span·class="mi">11</span><span·class="gp·unselectable"> | 330 | </span><span·class="mi">11</span><span·class="gp·unselectable"> |
| 331 | (a@sam)8>·</span><span·class="n">SecKey</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">42</span><span·class="p">.</span><span·class="w"> | 331 | (a@sam)8>·</span><span·class="n">SecKey</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">42</span><span·class="p">.</span><span·class="w"> |
| 332 | </span><span·class="mi">42</span><span·class="gp·unselectable"> | 332 | </span><span·class="mi">42</span><span·class="gp·unselectable"> |
| 333 | (a@sam)9>·</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">activity</span><span·class="p"·data-group-id=" | 333 | (a@sam)9>·</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">activity</span><span·class="p"·data-group-id="4763451015-34">(</span><span·class="ss">sync_dirty</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Write</span><span·class="p">,</span><span·class="w"> |
| 334 | ··························</span><span·class="p"·data-group-id=" | 334 | ··························</span><span·class="p"·data-group-id="4763451015-35">[</span><span·class="p"·data-group-id="4763451015-36">{</span><span·class="ss">prim_dict</span><span·class="p">,</span><span·class="w">·</span><span·class="n">PrimKey</span><span·class="p">,</span><span·class="w">·</span><span·class="o">-</s[·...·truncated·by·diffoscope;·len:·262,·SHA:·dce4502c2f64a6cd1390092ff311cf396e9c016d13915d81544ead09510d2af0·...·]-34">)</span><span·class="p">.</span><span·class="w"> |
| 335 | </span><span·class="nf">ok</span><span·class="w"> | 335 | </span><span·class="nf">ok</span><span·class="w"> |
| 336 | </span><span·class="p"·data-group-id=" | 336 | </span><span·class="p"·data-group-id="4763451015-37">(</span><span·class="ss">a@sam</span><span·class="p"·data-group-id="4763451015-37">)</span><span·class="mi">10</span><span·class="o">></span><span·class="w">·</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">ac[·...·truncated·by·diffoscope;·len:·54,·SHA:·37fe2d8fe5becfbdf772ed96b188eee3e3298200c8560f525bc973a39f4f46df·...·]-38">(</span><span·class="ss">sync_dirty</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Write</span><span·class="p">,</span><span·class="w"> |
| 337 | ···························</span><span·class="p"·data-group-id=" | 337 | ···························</span><span·class="p"·data-group-id="4763451015-39">[</span><span·class="p"·data-group-id="4763451015-40">{</span><span·class="ss">sec_dict</span><span·class="p">,</span><span·class="w">·</span><span·class="n">SecKey</span><span·class="p">,</span><span·class="w">·</span><span·class="n">PrimKe[·...·truncated·by·diffoscope;·len:·240,·SHA:·491911cac1ad1fb4e89a0d813768ac8eaff9e04982b8e67a8cc8361e8df7a564·...·]-38">)</span><span·class="p">.</span><span·class="w"> |
| 338 | </span><span·class="nf">ok</span><span·class="w"> | 338 | </span><span·class="nf">ok</span><span·class="w"> |
| 339 | </span><span·class="p"·data-group-id=" | 339 | </span><span·class="p"·data-group-id="4763451015-41">(</span><span·class="ss">a@sam</span><span·class="p"·data-group-id="4763451015-41">)</span><span·class="mi">11</span><span·class="o">></span><span·class="w">·</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">ch[·...·truncated·by·diffoscope;·len:·630,·SHA:·a9190ea4cf83351efa492cda908accf0c5dcc2298f27f7fa14732dd0a6b7a6f7·...·]-42">)</span><span·class="p">.</span><span·class="w"> |
| 340 | </span><span·class="p"·data-group-id=" | 340 | </span><span·class="p"·data-group-id="4763451015-46">{</span><span·class="ss">atomic</span><span·class="p">,</span><span·class="ss">ok</span><span·class="p"·data-group-id="4763451015-46">}</span><span·class="gp·unselectable"> |
| 341 | (a@sam)12>·</span><span·class="n">SecRead</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id=" | 341 | (a@sam)12>·</span><span·class="n">SecRead</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id="4763451015-47">(</span><span·class="n">PrimKey</span><span·class="p">,</span><span·class="w">·</span><span·class="n">SecKey</span><span·class="p"·data-group-id="4763451015-47">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 342 | ···············</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">read</span><span·class="p"·data-group-id=" | 342 | ···············</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">read</span><span·class="p"·data-group-id="4763451015-48">(</span><span·class="p"·data-group-id="4763451015-49">{</span><span·class="ss">sec_dict</span><span·class="p">,</span><span·class="w">·</span><span·class="n">PrimKey</span><span·class="p"·data-group-id="4763451015-49">}</span><span·class="p"[·...·truncated·by·diffoscope;·len:·179,·SHA:·bd3f20bd78943ff02403ed6b72384e9337a29cbd63b535057172e86b8b01fe18·...·]-48">)</span><span·class="w">·</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> |
| 343 | </span><span·class="p">#</span><span·class="n">Fun</span><span·class="o"><</span><span·class="ss">erl_eval</span><span·class="o">></span><span·class="gp·unselectable"> | 343 | </span><span·class="p">#</span><span·class="n">Fun</span><span·class="o"><</span><span·class="ss">erl_eval</span><span·class="o">></span><span·class="gp·unselectable"> |
| 344 | (a@sam)13>·</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">activity</span><span·class="p"·data-group-id=" | 344 | (a@sam)13>·</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">activity</span><span·class="p"·data-group-id="4763451015-50">(</span><span·class="ss">transaction</span><span·class="p">,</span><span·class="w">·</span><span·class="n">SecRead</span><span·class="p">,</span><span·class="w"> |
| 345 | ···························</span><span·class="p"·data-group-id=" | 345 | ···························</span><span·class="p"·data-group-id="4763451015-51">[</span><span·class="n">PrimKey</span><span·class="p">,</span><span·class="w">·</span><span·class="n">SecKey</span><span·class="p"·data-group-id="4763451015-51">]</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">mnesia_[·...·truncated·by·diffoscope;·len:·52,·SHA:·26475bfdd4724455110dd4193a47a24c0ceed179c17f2864acb8368104101b9c·...·]-50">)</span><span·class="p">.</span><span·class="w"> |
| 346 | </span><span·class="p"·data-group-id=" | 346 | </span><span·class="p"·data-group-id="4763451015-52">[</span><span·class="p"·data-group-id="4763451015-53">{</span><span·class="ss">sec_dict</span><span·class="p">,</span><span·class="mi">42</span><span·class="p">,</span><span·class="mi">11</span><span·class="p"·data-group-id="4763451015-53">}[·...·truncated·by·diffoscope;·len:·48,·SHA:·3f345f3eea866917ef04c6efd1d2f0b25969b3796bd138049608560f3a65ff13·...·]-52">]</span><span·class="gp·unselectable"> |
| 347 | (a@sam)14>·</span><span·class="n">Info</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id=" | 347 | (a@sam)14>·</span><span·class="n">Info</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id="4763451015-54">(</span><span·class="n">Tab</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Item</span><span·class="p"·data-group-id="4763451015-54">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><s[·...·truncated·by·diffoscope;·len:·282,·SHA:·66179ba59f640ee6b8bc6aade77becaf40a8ba2f40c16796a4c583c39356e656·...·]-55">)</span><span·class="w">·</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> |
| 348 | </span><span·class="p">#</span><span·class="n">Fun</span><span·class="o"><</span><span·class="ss">erl_eval</span><span·class="o">></span><span·class="gp·unselectable"> | 348 | </span><span·class="p">#</span><span·class="n">Fun</span><span·class="o"><</span><span·class="ss">erl_eval</span><span·class="o">></span><span·class="gp·unselectable"> |
| 349 | (a@sam)15>·</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">activity</span><span·class="p"·data-group-id=" | 349 | (a@sam)15>·</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">activity</span><span·class="p"·data-group-id="4763451015-56">(</span><span·class="ss">sync_dirty</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Info</span><span·class="p">,</span><span·class="w"> |
| 350 | ···························</span><span·class="p"·data-group-id=" | 350 | ···························</span><span·class="p"·data-group-id="4763451015-57">[</span><span·class="ss">prim_dict</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">frag_size</span><span·class="p"·data-group-id="4763451015-57">]</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">[·...·truncated·by·diffoscope;·len:·59,·SHA:·6169f9a4bebcc71591c38d394c8d81563cdcbefd0fb353100aa50c6f35ef2480·...·]-56">)</span><span·class="p">.</span><span·class="w"> |
| 351 | </span><span·class="p"·data-group-id=" | 351 | </span><span·class="p"·data-group-id="4763451015-58">[</span><span·class="p"·data-group-id="4763451015-59">{</span><span·class="ss">prim_dict</span><span·class="p">,</span><span·class="mi">0</span><span·class="p"·data-group-id="4763451015-59">}</span><span·class="p">,</span><span·class="w"> |
| 352 | ·</span><span·class="p"·data-group-id=" | 352 | ·</span><span·class="p"·data-group-id="4763451015-60">{</span><span·class="ss">prim_dict_frag2</span><span·class="p">,</span><span·class="mi">0</span><span·class="p"·data-group-id="4763451015-60">}</span><span·class="p">,</span><span·class="w"> |
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| 229 | ··</a> | 229 | ··</a> |
| 230 | ··<span·class="text">Startup·Files</span> | 230 | ··<span·class="text">Startup·Files</span> |
| 231 | </h3> | 231 | </h3> |
| 232 | <p><a·href="mnesia_chap3.html#start_mnesia">Start·Mnesia</a>·states·the·following·prerequisites | 232 | <p><a·href="mnesia_chap3.html#start_mnesia">Start·Mnesia</a>·states·the·following·prerequisites |
| 233 | for·starting·<code·class="inline">Mnesia</code>:</p><ul><li>An·Erlang·session·must·be·started·and·a·<code·class="inline">Mnesia</code>·directory·must·be·specified | 233 | for·starting·<code·class="inline">Mnesia</code>:</p><ul><li>An·Erlang·session·must·be·started·and·a·<code·class="inline">Mnesia</code>·directory·must·be·specified |
| 234 | for·the·database.</li><li>A·database·schema·must·be·initiated,·using·the·function | 234 | for·the·database.</li><li>A·database·schema·must·be·initiated,·using·the·function |
| 235 | <a·href="mnesia.html#create_schema/1"><code·class="inline">mnesia:create_schema/1</code></a>.</li></ul><p>The·following·example·shows·how·these·tasks·are·performed:</p><p><em>Step·1:</em>·Start·an·Erlang·session·and·specify·a·<code·class="inline">Mnesia</code>·directory·for·the | 235 | <a·href="mnesia.html#create_schema/1"><code·class="inline">mnesia:create_schema/1</code></a>.</li></ul><p>The·following·example·shows·how·these·tasks·are·performed:</p><p><em>Step·1:</em>·Start·an·Erlang·session·and·specify·a·<code·class="inline">Mnesia</code>·directory·for·the |
| 236 | database:</p><pre><code·class="text">%·erl·-sname·klacke·-mnesia·dir·'"/ldisc/scratch/klacke"'</code></pre><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Erlang</span><span·class="o">/</span><span·class="n">OTP</span><span·class="w">·</span><span·class="mi">27</span><span·class="w">·</span><span·class="p"·data-group-id=" | 236 | database:</p><pre><code·class="text">%·erl·-sname·klacke·-mnesia·dir·'"/ldisc/scratch/klacke"'</code></pre><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Erlang</span><span·class="o">/</span><span·class="n">OTP</span><span·class="w">·</span><span·class="mi">27</span><span·class="w">·</span><span·class="p"·data-group-id="2689949717-1">[</span><span·class="ss">erts</span><span·class="o">-</span><span·class="mf">15.1</span><span·class="p">.</span><span·class="mi">2</span><span·class="p"·data-group-id="2689949717-1">]</span><span·class="w"> |
| 237 | </span><span·class="n">Eshell</span><span·class="w">·</span><span·class="n">V15</span><span·class="p">.</span><span·class="mf">1.2</span><span·class="w">·</span><span·class="p"·data-group-id=" | 237 | </span><span·class="n">Eshell</span><span·class="w">·</span><span·class="n">V15</span><span·class="p">.</span><span·class="mf">1.2</span><span·class="w">·</span><span·class="p"·data-group-id="2689949717-2">(</span><span·class="ss">press</span><span·class="w">·</span><span·class="n">Ctrl</span><span·class="o">+</span><span·class="n">G</span><span·class="w">·</span><span·class="ss">to</span><span·class="w">·</span><span·class="ss">abort</span><sp[·...·truncated·by·diffoscope;·len:·399,·SHA:·b20a2c8692b5a29d433f8bb7986bc63d7fed46594ebb490f2d7fb5743e99ffa6·...·]-2">)</span><span·class="gp·unselectable"> |
| 238 | (klacke@gin)1>·</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">create_schema</span><span·class="p"·data-group-id=" | 238 | (klacke@gin)1>·</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">create_schema</span><span·class="p"·data-group-id="2689949717-4">(</span><span·class="p"·data-group-id="2689949717-5">[</span><span·class="nf">node</span><span·class="p"·data-group-id="2689949717-6">(</span><span·class="p"·data-group-id="2689949717-6">)</span><span·class="p"·data-group-id="2689949717-5">]<[·...·truncated·by·diffoscope;·len:·47,·SHA:·56161aaef6330a85138f7948574df50da9a9653711b8306de9ee379f3e15b2e4·...·]-4">)</span><span·class="p">.</span><span·class="w"> |
| 239 | </span><span·class="nf">ok</span><span·class="w"> | 239 | </span><span·class="nf">ok</span><span·class="w"> |
| 240 | </span><span·class="p"·data-group-id=" | 240 | </span><span·class="p"·data-group-id="2689949717-7">(</span><span·class="ss">klacke@gin</span><span·class="p"·data-group-id="2689949717-7">)</span><span·class="mi">2</span><span·class="o">></span><span·class="w"> |
| 241 | </span><span·class="n">Ctrl</span><span·class="o">+</span><span·class="n">Z</span><span·class="w"> | 241 | </span><span·class="n">Ctrl</span><span·class="o">+</span><span·class="n">Z</span><span·class="w"> |
| 242 | </span><span·class="p"·data-group-id=" | 242 | </span><span·class="p"·data-group-id="2689949717-8">[</span><span·class="mi">1</span><span·class="p"·data-group-id="2689949717-8">]</span><span·class="o">+</span><span·class="w">··</span><span·class="n">Stopped</span><span·class="w">·················</span><span·class="ss">erl</span></code></pre><p><em>Step·2:</em>·You·can·inspect·the·<code·class="inline">Mnesia</code>·directory·to·see·what·files·have·been |
| 243 | created:</p><pre><code·class="text">%·ls·-l·/ldisc/scratch/klacke | 243 | created:</p><pre><code·class="text">%·ls·-l·/ldisc/scratch/klacke |
| 244 | -rw-rw-r--···1·klacke···staff·······247·Aug·12·15:06·FALLBACK.BUP</code></pre><p>The·response·shows·that·the·file·<code·class="inline">FALLBACK.BUP</code>·has·been·created.·This·is·called | 244 | -rw-rw-r--···1·klacke···staff·······247·Aug·12·15:06·FALLBACK.BUP</code></pre><p>The·response·shows·that·the·file·<code·class="inline">FALLBACK.BUP</code>·has·been·created.·This·is·called |
| 245 | a·backup·file,·and·it·contains·an·initial·schema.·If·more·than·one·node·in·the | 245 | a·backup·file,·and·it·contains·an·initial·schema.·If·more·than·one·node·in·the |
| 246 | function·<a·href="mnesia.html#create_schema/1"><code·class="inline">mnesia:create_schema/1</code></a>·had·been·specified,·identical·backup·files | 246 | function·<a·href="mnesia.html#create_schema/1"><code·class="inline">mnesia:create_schema/1</code></a>·had·been·specified,·identical·backup·files |
| 247 | would·have·been·created·on·all·nodes.</p><p><em>Step·3:</em>·Start·<code·class="inline">Mnesia</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">(klacke@gin)3>·</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id=" | 247 | would·have·been·created·on·all·nodes.</p><p><em>Step·3:</em>·Start·<code·class="inline">Mnesia</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">(klacke@gin)3>·</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id="0593238090-1">(</span><span·class="p"·data-group-id="0593238090-1">)</span><span·class="p">.</span><span·class="w"> |
| 248 | </span><span·class="ss">ok</span></code></pre><p><em>Step·4:</em>·You·can·see·the·following·listing·in·the·<code·class="inline">Mnesia</code>·directory:</p><pre><code·class="text">-rw-rw-r--···1·klacke···staff·········86·May·26·19:03·LATEST.LOG | 248 | </span><span·class="ss">ok</span></code></pre><p><em>Step·4:</em>·You·can·see·the·following·listing·in·the·<code·class="inline">Mnesia</code>·directory:</p><pre><code·class="text">-rw-rw-r--···1·klacke···staff·········86·May·26·19:03·LATEST.LOG |
| 249 | -rw-rw-r--···1·klacke···staff······34507·May·26·19:03·schema.DAT</code></pre><p>The·schema·in·the·backup·file·<code·class="inline">FALLBACK.BUP</code>·has·been·used·to·generate·the·file | 249 | -rw-rw-r--···1·klacke···staff······34507·May·26·19:03·schema.DAT</code></pre><p>The·schema·in·the·backup·file·<code·class="inline">FALLBACK.BUP</code>·has·been·used·to·generate·the·file |
| 250 | <code·class="inline">schema.DAT</code>.·Since·there·are·no·other·disc·resident·tables·than·the·schema,·no | 250 | <code·class="inline">schema.DAT</code>.·Since·there·are·no·other·disc·resident·tables·than·the·schema,·no |
| 251 | other·data·files·were·created.·The·file·<code·class="inline">FALLBACK.BUP</code>·was·removed·after·the | 251 | other·data·files·were·created.·The·file·<code·class="inline">FALLBACK.BUP</code>·was·removed·after·the |
| 252 | successful·"restoration".·You·also·see·some·files·that·are·for·internal·use·by | 252 | successful·"restoration".·You·also·see·some·files·that·are·for·internal·use·by |
| 253 | <code·class="inline">Mnesia</code>.</p><p><em>Step·5:</em>·Create·a·table:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">(klacke@gin)4>·</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">create_table</span><span·class="p"·data-group-id="4739925787-1">(</span><span·class="ss">foo</span><span·class="p">,</span><span·class="p"·data-group-id="4739925787-2">[</span><span·class="p"·data-group-id="4739925787-3">{</span><span·class="ss">disc_copies</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4739925787-4">[</span><span·class="nf">node</span><span·class="p"·data-group-id="4739925787-5">(</span><span·class="p"·data-group-id="4739925787-5">)</span><span·class="p"·data-group-id="4739925787-4">]</span><span·class="p"·data-group-id="4739925787-3">}</span><span·class="p"·data-group-id="4739925787-2">]</span><span·class="p"·data-group-id="4739925787-1">)</span><span·class="p">.</span><span·class="w"> | ||
| 254 | < | 253 | <code·class="inline">Mnesia</code>.</p><p><em>Step·5:</em>·Create·a·table:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">(klacke@gin)4>·</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">creat[·...·truncated·by·diffoscope;·len:·746,·SHA:·a3bd1ad79092afa914d31babbf7c3abde112891b0e1a73cca922d14ffa3031b8·...·] |
| 254 | </span><span·class="p"·data-group-id="0301864160-6">{</span><span·class="ss">atomic</span><span·class="p">,</span><span·class="ss">ok</span><span·class="p"·data-group-id="0301864160-6">}</span></code></pre><p><em>Step·6:</em>·You·can·see·the·following·listing·in·the·<code·class="inline">Mnesia</code>·directory:</p><pre><code·class="text">%·ls·-l·/ldisc/scratch/klacke | ||
| 255 | -rw-rw-r--·1·klacke·staff····86·May·26·19:07·LATEST.LOG | 255 | -rw-rw-r--·1·klacke·staff····86·May·26·19:07·LATEST.LOG |
| 256 | -rw-rw-r--·1·klacke·staff····94·May·26·19:07·foo.DCD | 256 | -rw-rw-r--·1·klacke·staff····94·May·26·19:07·foo.DCD |
| 257 | -rw-rw-r--·1·klacke·staff··6679·May·26·19:07·schema.DAT</code></pre><p>The·file·<code·class="inline">foo.DCD</code>·has·been·created.·This·file·will·eventually·store·all·data | 257 | -rw-rw-r--·1·klacke·staff··6679·May·26·19:07·schema.DAT</code></pre><p>The·file·<code·class="inline">foo.DCD</code>·has·been·created.·This·file·will·eventually·store·all·data |
| 258 | that·is·written·into·the·<code·class="inline">foo</code>·table.</p><h3·id="log-file"·class="section-heading"> | 258 | that·is·written·into·the·<code·class="inline">foo</code>·table.</p><h3·id="log-file"·class="section-heading"> |
| 259 | ··<a·href="#log-file"·class="hover-link"> | 259 | ··<a·href="#log-file"·class="hover-link"> |
| 260 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 260 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 261 | ··</a> | 261 | ··</a> |
| Offset 292, 19 lines modified | Offset 292, 19 lines modified | ||
| 292 | and·it·is·efficient·to·insert·and·search·for·records·in·these·files·with·a | 292 | and·it·is·efficient·to·insert·and·search·for·records·in·these·files·with·a |
| 293 | specific·key.·The·<code·class="inline">.DAT</code>·files·are·used·for·the·schema·and·for | 293 | specific·key.·The·<code·class="inline">.DAT</code>·files·are·used·for·the·schema·and·for |
| 294 | <code·class="inline">disc_only_copies</code>·tables.·The·<code·class="inline">Mnesia</code>·data·files·are·currently·implemented·in | 294 | <code·class="inline">disc_only_copies</code>·tables.·The·<code·class="inline">Mnesia</code>·data·files·are·currently·implemented·in |
| 295 | the·standard·library·module·<a·href="../../../../lib/stdlib-7.0/doc/html/dets.html"><code·class="inline">dets</code></a>·in·<code·class="inline">STDLIB</code>.</p><p>All·operations·that·can·be·performed·on·<code·class="inline">dets</code>·files·can·also·be·performed·on | 295 | the·standard·library·module·<a·href="../../../../lib/stdlib-7.0/doc/html/dets.html"><code·class="inline">dets</code></a>·in·<code·class="inline">STDLIB</code>.</p><p>All·operations·that·can·be·performed·on·<code·class="inline">dets</code>·files·can·also·be·performed·on |
| 296 | the·<code·class="inline">Mnesia</code>·data·files.·For·example,·<code·class="inline">dets</code>·contains·the·function | 296 | the·<code·class="inline">Mnesia</code>·data·files.·For·example,·<code·class="inline">dets</code>·contains·the·function |
| 297 | <a·href="../../../../lib/stdlib-7.0/doc/html/dets.html#traverse/2"><code·class="inline">dets:traverse/2</code></a>,·which·can·be·used·to·view·the·contents·of·a·<code·class="inline">Mnesia</code>·<code·class="inline">DAT</code> | 297 | <a·href="../../../../lib/stdlib-7.0/doc/html/dets.html#traverse/2"><code·class="inline">dets:traverse/2</code></a>,·which·can·be·used·to·view·the·contents·of·a·<code·class="inline">Mnesia</code>·<code·class="inline">DAT</code> |
| 298 | file.·However,·this·can·only·be·done·when·<code·class="inline">Mnesia</code>·is·not·running.·So,·to·view | 298 | file.·However,·this·can·only·be·done·when·<code·class="inline">Mnesia</code>·is·not·running.·So,·to·view |
| 299 | the·schema·file,·do·as·follows;</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 299 | the·schema·file,·do·as·follows;</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="7911684738-1">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">N</span><span·class="p"·data-group-id="7911684738-1">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class[·...·truncated·by·diffoscope;·len:·688,·SHA:·457cda6b38d06b55705a1fe9767ff389b1a1a35609880ffa62f01fd8408be9cb·...·]-5">}</span><span·class="p">,</span><span·class="w"> |
| 300 | </span><span·class="p"·data-group-id=" | 300 | </span><span·class="p"·data-group-id="7911684738-6">{</span><span·class="ss">keypos</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">2</span><span·class="p"·data-group-id="7911684738-6">}</span><span·class="p"·data-group-id="7911684738-3">]</span><span·class="p"·data-grou[·...·truncated·by·diffoscope;·len:·16,·SHA:·5b4e0d6b719c1ea6ef6cae20155a6ccc27f24f5a66de152adc2171a89f9f0470·...·]-2">)</span><span·class="p">,</span><span·class="w"> |
| 301 | </span><span·class="n">F</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id=" | 301 | </span><span·class="n">F</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id="7911684738-7">(</span><span·class="n">X</span><span·class="p"·data-group-id="7911684738-7">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><[·...·truncated·by·diffoscope;·len:·381,·SHA:·24d6db2a1917bd9b267aa3d61a558c284f57834ed50bfb68baabe067623bcf63·...·]-8">)</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">continue</span><span·class="w">·</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> |
| 302 | </span><span·class="nc">dets</span><span·class="p">:</span><span·class="nf">traverse</span><span·class="p"·data-group-id=" | 302 | </span><span·class="nc">dets</span><span·class="p">:</span><span·class="nf">traverse</span><span·class="p"·data-group-id="7911684738-10">(</span><span·class="n">N</span><span·class="p">,</span><span·class="w">·</span><span·class="n">F</span><span·class="p"·data-group-id="7911684738-10">)</span><span·class="p">,</span><span·class="w"> |
| 303 | </span><span·class="nc">dets</span><span·class="p">:</span><span·class="nf">close</span><span·class="p"·data-group-id=" | 303 | </span><span·class="nc">dets</span><span·class="p">:</span><span·class="nf">close</span><span·class="p"·data-group-id="7911684738-11">(</span><span·class="n">N</span><span·class="p"·data-group-id="7911684738-11">)</span><span·class="p">.</span></code></pre><section·role="note"·class="admonition·warning"><h4·class="admonition-title·warning">Warning</h4><p>The·<code·class="inline">DAT</code>·files·must·always·be·opened·with·option·<code·class="inline">{repair,·false}</code>.·This |
| 304 | ensures·that·these·files·are·not·automatically·repaired.·Without·this·option, | 304 | ensures·that·these·files·are·not·automatically·repaired.·Without·this·option, |
| 305 | the·database·can·become·inconsistent,·because·<code·class="inline">Mnesia</code>·can·believe·that·the | 305 | the·database·can·become·inconsistent,·because·<code·class="inline">Mnesia</code>·can·believe·that·the |
| 306 | files·were·properly·closed.·For·information·about·configuration·parameter | 306 | files·were·properly·closed.·For·information·about·configuration·parameter |
| 307 | <code·class="inline">auto_repair</code>,·see·the·Reference·Manual.</p></section><section·role="note"·class="admonition·warning"><h4·class="admonition-title·warning">Warning</h4><p>It·is·recommended·that·the·data·files·are·not·tampered·with·while·<code·class="inline">Mnesia</code>·is | 307 | <code·class="inline">auto_repair</code>,·see·the·Reference·Manual.</p></section><section·role="note"·class="admonition·warning"><h4·class="admonition-title·warning">Warning</h4><p>It·is·recommended·that·the·data·files·are·not·tampered·with·while·<code·class="inline">Mnesia</code>·is |
| 308 | running.·While·not·prohibited,·the·behavior·of·<code·class="inline">Mnesia</code>·is·unpredictable.</p></section><p>The·<code·class="inline">disc_copies</code>·tables·are·stored·on·disk·with·<code·class="inline">.DCL</code>·and·<code·class="inline">.DCD</code>·files,·which | 308 | running.·While·not·prohibited,·the·behavior·of·<code·class="inline">Mnesia</code>·is·unpredictable.</p></section><p>The·<code·class="inline">disc_copies</code>·tables·are·stored·on·disk·with·<code·class="inline">.DCL</code>·and·<code·class="inline">.DCD</code>·files,·which |
| 309 | are·standard·<code·class="inline">disk_log</code>·files.</p><h2·id="loading-tables-at-startup"·class="section-heading"> | 309 | are·standard·<code·class="inline">disk_log</code>·files.</p><h2·id="loading-tables-at-startup"·class="section-heading"> |
| 310 | ··<a·href="#loading-tables-at-startup"·class="hover-link"> | 310 | ··<a·href="#loading-tables-at-startup"·class="hover-link"> |
| Offset 530, 46 lines modified | Offset 530, 46 lines modified | ||
| 530 | of·what·<code·class="inline">record_name</code>·is·set·to.</li></ul><p>The·backup·data·is·divided·into·two·sections.·The·first·section·contains | 530 | of·what·<code·class="inline">record_name</code>·is·set·to.</li></ul><p>The·backup·data·is·divided·into·two·sections.·The·first·section·contains |
| 531 | information·related·to·the·schema.·All·schema-related·items·are·tuples·where·the | 531 | information·related·to·the·schema.·All·schema-related·items·are·tuples·where·the |
| 532 | first·field·equals·the·atom·schema.·The·second·section·is·the·record·section. | 532 | first·field·equals·the·atom·schema.·The·second·section·is·the·record·section. |
| 533 | Schema·records·cannot·be·mixed·with·other·records·and·all·schema·records·must·be | 533 | Schema·records·cannot·be·mixed·with·other·records·and·all·schema·records·must·be |
| 534 | located·first·in·the·backup.</p><p>The·schema·itself·is·a·table·and·is·possibly·included·in·the·backup.·Each·node | 534 | located·first·in·the·backup.</p><p>The·schema·itself·is·a·table·and·is·possibly·included·in·the·backup.·Each·node |
| 535 | where·the·schema·table·resides·is·regarded·as·a·<code·class="inline">db_node</code>.</p><p>The·following·example·shows·how | 535 | where·the·schema·table·resides·is·regarded·as·a·<code·class="inline">db_node</code>.</p><p>The·following·example·shows·how |
| 536 | <a·href="mnesia.html#traverse_backup/4"><code·class="inline">mnesia:traverse_backup</code></a>·can·be·used·to·rename·a | 536 | <a·href="mnesia.html#traverse_backup/4"><code·class="inline">mnesia:traverse_backup</code></a>·can·be·used·to·rename·a |
| 537 | <code·class="inline">db_node</code>·in·a·backup·file:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">change_node_name</span><span·class="p"·data-group-id=" | 537 | <code·class="inline">db_node</code>·in·a·backup·file:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">change_node_name</span><span·class="p"·data-group-id="1458249192-1">(</span><span·class="n">Mod</span><span·class="p">,</span><span·class="w">·</span><span·class="n">From</span><span·class="p">,</span><span·class="w">·</span><span·class="n">To</span><span·class="p">,</span><span·class="w">·</span><span·class=[·...·truncated·by·diffoscope;·len:·135,·SHA:·405953fe601d8fcc4495d1dc6c7cbff9c80613271a408edd9ad50f7e26015aa6·...·]-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 538 | ····</span><span·class="n">Switch</span><span·class="w">·</span><span·class="o">=</span><span·class="w"> | 538 | ····</span><span·class="n">Switch</span><span·class="w">·</span><span·class="o">=</span><span·class="w"> |
| 539 | ········</span><span·class="nf">fun</span><span·class="p"·data-group-id=" | 539 | ········</span><span·class="nf">fun</span><span·class="p"·data-group-id="1458249192-2">(</span><span·class="n">Node</span><span·class="p"·data-group-id="1458249192-2">)</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><span·class="n">Node</span><span·class="w">·</span><span·class="o">==</span><span·class="w">·</span><span·class="n">From</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">To</span><span·class="p">;</span><span·class="w"> |
| 540 | ···········</span><span·class="p"·data-group-id=" | 540 | ···········</span><span·class="p"·data-group-id="1458249192-3">(</span><span·class="n">Node</span><span·class="p"·data-group-id="1458249192-3">)</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><span·class="n">Node</span><span·class="w">·</span><span·class="o">==</span><sp[·...·truncated·by·diffoscope;·len:·466,·SHA:·81608936efc2bbf461205c8da4644badda666e30524fe369f9306f5647fd21e1·...·]-4">)</span><span·class="p">;</span><span·class="w"> |
| 541 | ···········</span><span·class="p"·data-group-id=" | 541 | ···········</span><span·class="p"·data-group-id="1458249192-6">(</span><span·class="n">Node</span><span·class="p"·data-group-id="1458249192-6">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">Node</span><span·class="w"> |
| 542 | ········</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> | 542 | ········</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> |
| 543 | ····</span><span·class="n">Convert</span><span·class="w">·</span><span·class="o">=</span><span·class="w"> | 543 | ····</span><span·class="n">Convert</span><span·class="w">·</span><span·class="o">=</span><span·class="w"> |
| 544 | ········</span><span·class="nf">fun</span><span·class="p"·data-group-id=" | 544 | ········</span><span·class="nf">fun</span><span·class="p"·data-group-id="1458249192-7">(</span><span·class="p"·data-group-id="1458249192-8">{</span><span·class="ss">schema</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">version</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Version<[·...·truncated·by·diffoscope;·len:·174,·SHA:·bd462c9861866d60e60f6c491f0fd66f6286008ace65abb5d3ce891e01176fc6·...·]-7">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 545 | ················</span><span·class="p"·data-group-id=" | 545 | ················</span><span·class="p"·data-group-id="1458249192-9">{</span><span·class="p"·data-group-id="1458249192-10">[</span><span·class="p"·data-group-id="1458249192-11">{</span><span·class="ss">schema</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">version</span><span·class="p">,[·...·truncated·by·diffoscope;·len:·284,·SHA:·b683ad6c006b5492139ec34721607474de81d7bc9f7eee3f9760f1eae8eeab6d·...·]-9">}</span><span·class="p">;</span><span·class="w"> |
| 546 | ···········</span><span·class="p"·data-group-id=" | 546 | ···········</span><span·class="p"·data-group-id="1458249192-12">(</span><span·class="p"·data-group-id="1458249192-13">{</span><span·class="ss">schema</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">cookie</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Cookie<[·...·truncated·by·diffoscope;·len:·175,·SHA:·d4ab288f2d9bdfd33b79d970421237f5f0ac31a65e415b53f2f549153300cddb·...·]-12">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 547 | ················</span><span·class="p"·data-group-id=" | 547 | ················</span><span·class="p"·data-group-id="1458249192-14">{</span><span·class="p"·data-group-id="1458249192-15">[</span><span·class="p"·data-group-id="1458249192-16">{</span><span·class="ss">schema</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">cookie</span><span·class="p">,[·...·truncated·by·diffoscope;·len:·283,·SHA:·b806791c2a4f45cd66ad5c2b3b16d6c9316b9d6d883bc7790d1ade75639f41de·...·]-14">}</span><span·class="p">;</span><span·class="w"> |
| 548 | ···········</span><span·class="p"·data-group-id=" | 548 | ···········</span><span·class="p"·data-group-id="1458249192-17">(</span><span·class="p"·data-group-id="1458249192-18">{</span><span·class="ss">schema</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Tab</span><span·class="p">,</span><span·class="w">·</span><span·class="n">CreateList<[·...·truncated·by·diffoscope;·len:·175,·SHA:·2a875199d1728e56e00e2bfdd565bda45a49e8724ca186135b5d7d811fe72076·...·]-17">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 549 | ················</span><span·class="n">Keys</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 549 | ················</span><span·class="n">Keys</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="1458249192-19">[</span><span·class="ss">ram_copies</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">disc_copies</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">disc_only_copies</span><span·class="p"·data-group-i[·...·truncated·by·diffoscope;·len:·13,·SHA:·24d6f63731dc4925535423d1e2d5d7096ecedd0e56962827adea86f0ce4aebfe·...·]-19">]</span><span·class="p">,</span><span·class="w"> |
| 550 | ················</span><span·class="n">OptSwitch</span><span·class="w">·</span><span·class="o">=</span><span·class="w"> | 550 | ················</span><span·class="n">OptSwitch</span><span·class="w">·</span><span·class="o">=</span><span·class="w"> |
| 551 | ····················</span><span·class="nf">fun</span><span·class="p"·data-group-id=" | 551 | ····················</span><span·class="nf">fun</span><span·class="p"·data-group-id="1458249192-20">(</span><span·class="p"·data-group-id="1458249192-21">{</span><span·class="n">Key</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Val</span><span·class="p"·data-group-id="1458249192-21">}</span><span·class="p"·data-grou[·...·truncated·by·diffoscope;·len:·16,·SHA:·e7e8d04fe20c079a85d649390a512e89001d53b29b5c184d967dfb0c1ab79e8b·...·]-20">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 552 | ····························</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">member</span><span·class="p"·data-group-id=" | 552 | ····························</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">member</span><span·class="p"·data-group-id="1458249192-22">(</span><span·class="n">Key</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Keys</span><span·class="p"·data-group-id="1458249192-22">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 553 | ································</span><span·class="ss">true</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="p"·data-group-id=" | 553 | ································</span><span·class="ss">true</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="p"·data-group-id="1458249192-23">{</span><span·class="n">Key</span><span·class="p">,</span><span·class="w">·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">map</span><span·class="p"·data-group-id="1458249192-24">(</span><span·class="n">Switch</s[·...·truncated·by·diffoscope;·len:·173,·SHA:·e690a7374a1771945328bd09d6c9c7c944156e8abfd7d5dd66cce697b3fe17d7·...·]-23">}</span><span·class="p">;</span><span·class="w"> |
| 554 | ································</span><span·class="ss">false</span><span·class="p">-></span><span·class="w">·</span><span·class="p"·data-group-id=" | 554 | ································</span><span·class="ss">false</span><span·class="p">-></span><span·class="w">·</span><span·class="p"·data-group-id="1458249192-25">{</span><span·class="n">Key</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Val</span><span·class="p"·data-group-id="1458249192-25">}</span><span·class="w"> |
| 555 | ····························</span><span·class="k">end</span><span·class="w"> | 555 | ····························</span><span·class="k">end</span><span·class="w"> |
| 556 | ····················</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> | 556 | ····················</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> |
| 557 | ················</span><span·class="p"·data-group-id=" | 557 | ················</span><span·class="p"·data-group-id="1458249192-26">{</span><span·class="p"·data-group-id="1458249192-27">[</span><span·class="p"·data-group-id="1458249192-28">{</span><span·class="ss">schema</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Tab</span><span·class="p">,</sp[·...·truncated·by·diffoscope;·len:·551,·SHA:·39d164f3397b590182848e014c204231db83f2784008c729b16b6199d6700165·...·]-26">}</span><span·class="p">;</span><span·class="w"> |
| 558 | ···········</span><span·class="p"·data-group-id=" | 558 | ···········</span><span·class="p"·data-group-id="1458249192-30">(</span><span·class="n">Other</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Acc</span><span·class="p"·data-group-id="1458249192-30">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 559 | ················</span><span·class="p"·data-group-id=" | 559 | ················</span><span·class="p"·data-group-id="1458249192-31">{</span><span·class="p"·data-group-id="1458249192-32">[</span><span·class="n">Other</span><span·class="p"·data-group-id="1458249192-32">]</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Acc</span><span·class="p"·data-gr[·...·truncated·by·diffoscope;·len:·18,·SHA:·d8e10ee249cd4abce54ea3955a0182519487aaae5e4035205d4e98977a0738a1·...·]-31">}</span><span·class="w"> |
| 560 | ········</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> | 560 | ········</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> |
| 561 | ····</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">traverse_backup</span><span·class="p"·data-group-id=" | 561 | ····</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">traverse_backup</span><span·class="p"·data-group-id="1458249192-33">(</span><span·class="n">Source</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Mod</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Target</span><span·class="p">,</span><span·class="w">·</span><span[·...·truncated·by·diffoscope;·len:·220,·SHA:·56d6b232e7ae135dfa9b5563b7a76748ee9e3dd0f6508db84735b4050d05ad57·...·]-33">)</span><span·class="p">.</span><span·class="w"> |
| 562 | </span><span·class="nf">view</span><span·class="p"·data-group-id=" | 562 | </span><span·class="nf">view</span><span·class="p"·data-group-id="1458249192-34">(</span><span·class="n">Source</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Mod</span><span·class="p"·data-group-id="1458249192-34">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 563 | ····</span><span·class="n">View</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id=" | 563 | ····</span><span·class="n">View</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id="1458249192-35">(</span><span·class="n">Item</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Acc</span><span·class="p"·data-group-id="1458249192-35">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 564 | ···················</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 564 | ···················</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="1458249192-36">(</span><span·class="s">"</span><span·class="si">~p</span><span·class="s">.</span><span·class="si">~n</span><span·class="s">"</span><span·class="p">,</span><span·class="p"·data-group-id="1458249192-37">[</span><span·class="n">Item<[·...·truncated·by·diffoscope;·len:·101,·SHA:·3995227f3c65b60691cbe455eb06bffbcc92f1c4eeeef7f43f7cb560e3ea7631·...·]-36">)</span><span·class="p">,</span><span·class="w"> |
| 565 | ···················</span><span·class="p"·data-group-id=" | 565 | ···················</span><span·class="p"·data-group-id="1458249192-38">{</span><span·class="p"·data-group-id="1458249192-39">[</span><span·class="n">Item</span><span·class="p"·data-group-id="1458249192-39">]</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Acc</span><span·class="w">·</span>[·...·truncated·by·diffoscope;·len:·114,·SHA:·dcfcbcdeb6ab57ec57c3ad6f94859569479b810bb78820ab04b317df69796f2e·...·]-38">}</span><span·class="w"> |
| 566 | ···········</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> | 566 | ···········</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> |
| 567 | ····</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">traverse_backup</span><span·class="p"·data-group-id=" | 567 | ····</span><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">traverse_backup</span><span·class="p"·data-group-id="1458249192-40">(</span><span·class="n">Source</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Mod</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">dummy</span><span·class="p">,</span><span·class="w">·</span><span[·...·truncated·by·diffoscope;·len:·217,·SHA:·f4e378679aa1dfc832129a941892e2848ebd72018b0a4ad36dd55c35c5bda4c4·...·]-40">)</span><span·class="p">.</span></code></pre><h3·id="restore"·class="section-heading"> |
| 568 | ··<a·href="#restore"·class="hover-link"> | 568 | ··<a·href="#restore"·class="hover-link"> |
| 569 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 569 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 570 | ··</a> | 570 | ··</a> |
| 571 | ··<span·class="text">Restore</span> | 571 | ··<span·class="text">Restore</span> |
| 572 | </h3> | 572 | </h3> |
| 573 | <p>Tables·can·be·restored·online·from·a·backup·without·restarting·<code·class="inline">Mnesia</code>.·A | 573 | <p>Tables·can·be·restored·online·from·a·backup·without·restarting·<code·class="inline">Mnesia</code>.·A |
| 574 | restore·is·performed·with·the·function | 574 | restore·is·performed·with·the·function |
| Offset 705, 15 lines modified | Offset 705, 15 lines modified | ||
| 705 | ······<p·class="built-using"> | 705 | ······<p·class="built-using"> |
| 706 | ········Built·using | 706 | ········Built·using |
| 707 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 707 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 708 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 708 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 709 | ······</p> | 709 | ······</p> |
| 710 | <p>Copyright·©·1996-202 | 710 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 711 | ····</footer> | 711 | ····</footer> |
| 712 | ··</div> | 712 | ··</div> |
| 713 | </main> | 713 | </main> |
| 714 | </div> | 714 | </div> |
| 715 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 715 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 716 | ··<script> | 716 | ··<script> |
| 717 | ··let·initialized·=·false; | 717 | ··let·initialized·=·false; |
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| 187 | ······<p·class="built-using"> | 187 | ······<p·class="built-using"> |
| 188 | ········Built·using | 188 | ········Built·using |
| 189 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 189 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 190 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 190 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 191 | ······</p> | 191 | ······</p> |
| 192 | <p>Copyright·©·1996-202 | 192 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 193 | ····</footer> | 193 | ····</footer> |
| 194 | ··</div> | 194 | ··</div> |
| 195 | </main> | 195 | </main> |
| 196 | </div> | 196 | </div> |
| 197 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 197 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 198 | ··<script> | 198 | ··<script> |
| 199 | ··let·initialized·=·false; | 199 | ··let·initialized·=·false; |
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| 405 | ······<p·class="built-using"> | 405 | ······<p·class="built-using"> |
| 406 | ········Built·using | 406 | ········Built·using |
| 407 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 407 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 408 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 408 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 409 | ······</p> | 409 | ······</p> |
| 410 | <p>Copyright·©·1996-202 | 410 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 411 | ····</footer> | 411 | ····</footer> |
| 412 | ··</div> | 412 | ··</div> |
| 413 | </main> | 413 | </main> |
| 414 | </div> | 414 | </div> |
| 415 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 415 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 416 | ··<script> | 416 | ··<script> |
| 417 | ··let·initialized·=·false; | 417 | ··let·initialized·=·false; |
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| 239 | ······<p·class="built-using"> | 239 | ······<p·class="built-using"> |
| 240 | ········Built·using | 240 | ········Built·using |
| 241 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 241 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 242 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 242 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 243 | ······</p> | 243 | ······</p> |
| 244 | <p>Copyright·©·1996-202 | 244 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 245 | ····</footer> | 245 | ····</footer> |
| 246 | ··</div> | 246 | ··</div> |
| 247 | </main> | 247 | </main> |
| 248 | </div> | 248 | </div> |
| 249 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 249 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 250 | ··<script> | 250 | ··<script> |
| 251 | ··let·initialized·=·false; | 251 | ··let·initialized·=·false; |
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| 250 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·create_table(Tab·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:atom/0">atom</a>(),·Opt·::·[{<a·href="../../../../erts-16.0/doc/html/erlang.html#t:atom/0">atom</a>(),·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>()}])·->·ok.</pre> | 250 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·create_table(Tab·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:atom/0">atom</a>(),·Opt·::·[{<a·href="../../../../erts-16.0/doc/html/erlang.html#t:atom/0">atom</a>(),·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>()}])·->·ok.</pre> |
| 251 | ······</div> | 251 | ······</div> |
| 252 | <section·role="note"·class="admonition·warning"><h4·class="admonition-title·warning">Warning</h4><p><em>This·function·is·deprecated.·Do·not·use·it.</em></p></section><p>A·wrapper·function·for·<a·href="mnesia.html#create_table/2"><code·class="inline">mnesia:create_table/2</code></a>,·which·creates·a·table·(if·there | 252 | <section·role="note"·class="admonition·warning"><h4·class="admonition-title·warning">Warning</h4><p><em>This·function·is·deprecated.·Do·not·use·it.</em></p></section><p>A·wrapper·function·for·<a·href="mnesia.html#create_table/2"><code·class="inline">mnesia:create_table/2</code></a>,·which·creates·a·table·(if·there |
| 253 | is·no·existing·table)·with·an·appropriate·set·of·<code·class="inline">attributes</code>.·The·attributes | 253 | is·no·existing·table)·with·an·appropriate·set·of·<code·class="inline">attributes</code>.·The·attributes |
| 254 | and·<code·class="inline">TabDef</code>·are·forwarded·to·<a·href="mnesia.html#create_table/2"><code·class="inline">mnesia:create_table/2</code></a>.·For·example,·if·the·table | 254 | and·<code·class="inline">TabDef</code>·are·forwarded·to·<a·href="mnesia.html#create_table/2"><code·class="inline">mnesia:create_table/2</code></a>.·For·example,·if·the·table |
| 255 | is·to·reside·as·<code·class="inline">disc_only_copies</code>·on·all·nodes,·a·call·looks·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">··········</span><span·class="n">TabDef</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 255 | is·to·reside·as·<code·class="inline">disc_only_copies</code>·on·all·nodes,·a·call·looks·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">··········</span><span·class="n">TabDef</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="6041501610-1">[</span><span·class="p"·data-group-id="6041501610-2">{</span><span·class="p"·data-group-id="6041501610-3">{</span><span·class="ss">disc_only_copies</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">node</span><span·class=[·...·truncated·by·diffoscope;·len:·318,·SHA:·2efeb77e376fe2074d582f2e3da101242a75af472acaf6b474b348bd0ac9a3ba·...·]-3">}</span><span·class="p">]</span><span·class="p">,</span><span·class="w"> |
| 256 | ··········</span><span·class="nc">mnesia_registry</span><span·class="p">:</span><span·class="nf">create_table</span><span·class="p"·data-group-id=" | 256 | ··········</span><span·class="nc">mnesia_registry</span><span·class="p">:</span><span·class="nf">create_table</span><span·class="p"·data-group-id="6041501610-6">(</span><span·class="ss">my_reg</span><span·class="p">,</span><span·class="w">·</span><span·class="n">TabDef</span><span·class="p"·data-group-id="6041501610-6">)</span></code></pre> |
| 257 | ··</section> | 257 | ··</section> |
| 258 | </section> | 258 | </section> |
| 259 | ····</div> | 259 | ····</div> |
| 260 | ··</section> | 260 | ··</section> |
| 261 | ····<footer·class="footer"> | 261 | ····<footer·class="footer"> |
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| 280 | ······<p·class="built-using"> | 280 | ······<p·class="built-using"> |
| 281 | ········Built·using | 281 | ········Built·using |
| 282 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 282 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 283 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 283 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 284 | ······</p> | 284 | ······</p> |
| 285 | <p>Copyright·©·1996-202 | 285 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 286 | ····</footer> | 286 | ····</footer> |
| 287 | ··</div> | 287 | ··</div> |
| 288 | </main> | 288 | </main> |
| 289 | </div> | 289 | </div> |
| 290 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 290 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 291 | ··<script> | 291 | ··<script> |
| 292 | ··let·initialized·=·false; | 292 | ··let·initialized·=·false; |
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| 137 | </h2> | 137 | </h2> |
| 138 | <h3·id="improvements-and-new-features"·class="section-heading"> | 138 | <h3·id="improvements-and-new-features"·class="section-heading"> |
| 139 | ··<a·href="#improvements-and-new-features"·class="hover-link"> | 139 | ··<a·href="#improvements-and-new-features"·class="hover-link"> |
| 140 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 140 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 141 | ··</a> | 141 | ··</a> |
| 142 | ··<span·class="text">Improvements·and·New·Features</span> | 142 | ··<span·class="text">Improvements·and·New·Features</span> |
| 143 | </h3> | 143 | </h3> |
| 144 | <ul><li><p><a·href="https://www.erlang.org/eeps/eep-0069">EEP-69:·Nominal·Types</a>·has·been·implemented.·As·a·side·effect,·nominal·types·can·encode·opaque·types.·We·changed·all·opaque-handling·logic·and·improved·opaque·warnings·in·Dialyzer.</p><p>All·existing·Erlang·type·systems·are·structural:·two·types·are·seen·as·equivalent·if·their·structures·are·the·same.·Type·comparisons·are·based·on·the·structures·of·the·types,·not·on·how·the·user·explicitly·defines·them.·For·example,·in·the·following·example,·<code·class="inline">meter()</code>·and·<code·class="inline">foot()</code>·are·equivalent.·The·two·types·can·be·used·interchangeably.·Neither·of·them·differ·from·the·basic·type·<code·class="inline">integer()</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">type</span><span·class="w">·</span><span·class="nf">meter</span><span·class="p"·data-group-id=" | 144 | <ul><li><p><a·href="https://www.erlang.org/eeps/eep-0069">EEP-69:·Nominal·Types</a>·has·been·implemented.·As·a·side·effect,·nominal·types·can·encode·opaque·types.·We·changed·all·opaque-handling·logic·and·improved·opaque·warnings·in·Dialyzer.</p><p>All·existing·Erlang·type·systems·are·structural:·two·types·are·seen·as·equivalent·if·their·structures·are·the·same.·Type·comparisons·are·based·on·the·structures·of·the·types,·not·on·how·the·user·explicitly·defines·them.·For·example,·in·the·following·example,·<code·class="inline">meter()</code>·and·<code·class="inline">foot()</code>·are·equivalent.·The·two·types·can·be·used·interchangeably.·Neither·of·them·differ·from·the·basic·type·<code·class="inline">integer()</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">type</span><span·class="w">·</span><span·class="nf">meter</span><span·class="p"·data-group-id="2859093046-1">(</span><span·class="p"·data-group-id="2859093046-1">)</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="2859093046-2">(</span><[·...·truncated·by·diffoscope;·len:·39,·SHA:·43ad4289e4fa6d3e7fa570bc1aab1ffa9486b8c70125f5b4ea1bbfca324446cb·...·]6-2">)</span><span·class="p">.</span><span·class="w"> |
| 145 | </span><span·class="p">-</span><span·class="na">type</span><span·class="w">·</span><span·class="nf">foot</span><span·class="p"·data-group-id=" | 145 | </span><span·class="p">-</span><span·class="na">type</span><span·class="w">·</span><span·class="nf">foot</span><span·class="p"·data-group-id="2859093046-3">(</span><span·class="p"·data-group-id="2859093046-3">)</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="2859093046-4">(</span><[·...·truncated·by·diffoscope;·len:·1061,·SHA:·0b5a055b6d5057f24fd9ae37cc820cc5828eb6c0d06e589a06802277f428f1d7·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 146 | </span><span·class="p">-</span><span·class="na">nominal</span><span·class="w">·</span><span·class="nf">foot</span><span·class="p"·data-group-id=" | 146 | </span><span·class="p">-</span><span·class="na">nominal</span><span·class="w">·</span><span·class="nf">foot</span><span·class="p"·data-group-id="8535752810-3">(</span><span·class="p"·data-group-id="8535752810-3">)</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="8535752810-4">(</span><[·...·truncated·by·diffoscope;·len:·40,·SHA:·c7c7e4a549f4b5ff577d93f16f576b528a727ea1a34fb5774d657d54066ec08c·...·]-4">)</span><span·class="p">.</span></code></pre><p>More·nominal·type-checking·rules·can·be·found·in·the·EEP.·It·is·worth·noting·that·most·work·for·adding·nominal·types·and·type-checking·is·in·<code·class="inline">erl_types.erl</code>.·The·rest·are·changes·that·removed·the·previous·opaque·type-checking,·and·added·an·improved·version·of·it·using·nominal·type-checking·with·reworked·warnings.</p><p>Backwards·compatibility·for·opaque·type-checking·is·not·preserved·by·this·PR.·Previous·opaque·warnings·can·appear·with·slightly·different·wordings.·A·new·kind·of·opaque·warning·<code·class="inline">opaque_union</code>·is·added,·together·with·a·Dialyzer·option·<code·class="inline">no_opaque_union</code>·to·turn·this·kind·of·warnings·off.</p><p>Own·Id:·OTP-19364·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9079"·title="">PR-9079</a></p></li><li><p>The·license·and·copyright·header·has·changed·format·to·include·an·<code·class="inline">SPDX-License-Identifier</code>.·At·the·same·time,·most·files·have·been·updated·to·follow·a·uniform·standard·for·license·headers.</p><p>Own·Id:·OTP-19575·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9670"·title="">PR-9670</a></p></li></ul><h2·id="mnesia-4-23-5"·class="section-heading"> |
| 147 | ··<a·href="#mnesia-4-23-5"·class="hover-link"> | 147 | ··<a·href="#mnesia-4-23-5"·class="hover-link"> |
| 148 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 148 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 149 | ··</a> | 149 | ··</a> |
| 150 | ··<span·class="text">Mnesia·4.23.5</span> | 150 | ··<span·class="text">Mnesia·4.23.5</span> |
| 151 | </h2> | 151 | </h2> |
| 152 | <h3·id="fixed-bugs-and-malfunctions"·class="section-heading"> | 152 | <h3·id="fixed-bugs-and-malfunctions"·class="section-heading"> |
| 153 | ··<a·href="#fixed-bugs-and-malfunctions"·class="hover-link"> | 153 | ··<a·href="#fixed-bugs-and-malfunctions"·class="hover-link"> |
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| 1573 | ······<p·class="built-using"> | 1573 | ······<p·class="built-using"> |
| 1574 | ········Built·using | 1574 | ········Built·using |
| 1575 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1575 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1576 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1576 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1577 | ······</p> | 1577 | ······</p> |
| 1578 | <p>Copyright·©·1996-202 | 1578 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1579 | ····</footer> | 1579 | ····</footer> |
| 1580 | ··</div> | 1580 | ··</div> |
| 1581 | </main> | 1581 | </main> |
| 1582 | </div> | 1582 | </div> |
| 1583 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1583 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1584 | ··<script> | 1584 | ··<script> |
| 1585 | ··let·initialized·=·false; | 1585 | ··let·initialized·=·false; |
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| 141 | ······<p·class="built-using"> | 141 | ······<p·class="built-using"> |
| 142 | ········Built·using | 142 | ········Built·using |
| 143 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 143 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 144 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 144 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 145 | ······</p> | 145 | ······</p> |
| 146 | <p>Copyright·©·1996-202 | 146 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 147 | ····</footer> | 147 | ····</footer> |
| 148 | ··</div> | 148 | ··</div> |
| 149 | </main> | 149 | </main> |
| 150 | </div> | 150 | </div> |
| 151 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 151 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 152 | ··<script> | 152 | ··<script> |
| 153 | ··let·initialized·=·false; | 153 | ··let·initialized·=·false; |
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| 143 | ······<p·class="built-using"> | 143 | ······<p·class="built-using"> |
| 144 | ········Built·using | 144 | ········Built·using |
| 145 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 145 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 146 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 146 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 147 | ······</p> | 147 | ······</p> |
| 148 | <p>Copyright·©·1996-202 | 148 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 149 | ····</footer> | 149 | ····</footer> |
| 150 | ··</div> | 150 | ··</div> |
| 151 | </main> | 151 | </main> |
| 152 | </div> | 152 | </div> |
| 153 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 153 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 154 | ··<script> | 154 | ··<script> |
| 155 | ··let·initialized·=·false; | 155 | ··let·initialized·=·false; |
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| 209 | ······<p·class="built-using"> | 209 | ······<p·class="built-using"> |
| 210 | ········Built·using | 210 | ········Built·using |
| 211 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 211 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 212 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 212 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 213 | ······</p> | 213 | ······</p> |
| 214 | <p>Copyright·©·1996-202 | 214 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 215 | ····</footer> | 215 | ····</footer> |
| 216 | ··</div> | 216 | ··</div> |
| 217 | </main> | 217 | </main> |
| 218 | </div> | 218 | </div> |
| 219 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 219 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 220 | ··<script> | 220 | ··<script> |
| 221 | ··let·initialized·=·false; | 221 | ··let·initialized·=·false; |
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| 178 | ······<p·class="built-using"> | 178 | ······<p·class="built-using"> |
| 179 | ········Built·using | 179 | ········Built·using |
| 180 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 180 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 181 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 181 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 182 | ······</p> | 182 | ······</p> |
| 183 | <p>Copyright·©·1996-202 | 183 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 184 | ····</footer> | 184 | ····</footer> |
| 185 | ··</div> | 185 | ··</div> |
| 186 | </main> | 186 | </main> |
| 187 | </div> | 187 | </div> |
| 188 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 188 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 189 | ··<script> | 189 | ··<script> |
| 190 | ··let·initialized·=·false; | 190 | ··let·initialized·=·false; |
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| 367 | ······<p·class="built-using"> | 367 | ······<p·class="built-using"> |
| 368 | ········Built·using | 368 | ········Built·using |
| 369 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 369 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 370 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 370 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 371 | ······</p> | 371 | ······</p> |
| 372 | <p>Copyright·©·1996-202 | 372 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 373 | ····</footer> | 373 | ····</footer> |
| 374 | ··</div> | 374 | ··</div> |
| 375 | </main> | 375 | </main> |
| 376 | </div> | 376 | </div> |
| 377 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 377 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 378 | ··<script> | 378 | ··<script> |
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| 296 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 296 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 297 | ······</p> | 297 | ······</p> |
| 298 | <p>Copyright·©·1996-202 | 298 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 299 | ····</footer> | 299 | ····</footer> |
| 300 | ··</div> | 300 | ··</div> |
| 301 | </main> | 301 | </main> |
| 302 | </div> | 302 | </div> |
| 303 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 303 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 304 | ··<script> | 304 | ··<script> |
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| 422 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 422 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 423 | ······</p> | 423 | ······</p> |
| 424 | <p>Copyright·©·1996-202 | 424 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 425 | ····</footer> | 425 | ····</footer> |
| 426 | ··</div> | 426 | ··</div> |
| 427 | </main> | 427 | </main> |
| 428 | </div> | 428 | </div> |
| 429 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 429 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 430 | ··<script> | 430 | ··<script> |
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| 273 | ······</p> | 273 | ······</p> |
| 274 | <p>Copyright·©·1996-202 | 274 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 275 | ····</footer> | 275 | ····</footer> |
| 276 | ··</div> | 276 | ··</div> |
| 277 | </main> | 277 | </main> |
| 278 | </div> | 278 | </div> |
| 279 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 279 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 280 | ··<script> | 280 | ··<script> |
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| 189 | ······</p> | 189 | ······</p> |
| 190 | <p>Copyright·©·1996-202 | 190 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 191 | ····</footer> | 191 | ····</footer> |
| 192 | ··</div> | 192 | ··</div> |
| 193 | </main> | 193 | </main> |
| 194 | </div> | 194 | </div> |
| 195 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 195 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 196 | ··<script> | 196 | ··<script> |
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| 1185 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1185 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1186 | ······</p> | 1186 | ······</p> |
| 1187 | <p>Copyright·©·1996-202 | 1187 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1188 | ····</footer> | 1188 | ····</footer> |
| 1189 | ··</div> | 1189 | ··</div> |
| 1190 | </main> | 1190 | </main> |
| 1191 | </div> | 1191 | </div> |
| 1192 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1192 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1193 | ··<script> | 1193 | ··<script> |
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| 380 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 380 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 381 | ······</p> | 381 | ······</p> |
| 382 | <p>Copyright·©·1996-202 | 382 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 383 | ····</footer> | 383 | ····</footer> |
| 384 | ··</div> | 384 | ··</div> |
| 385 | </main> | 385 | </main> |
| 386 | </div> | 386 | </div> |
| 387 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 387 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 388 | ··<script> | 388 | ··<script> |
| 389 | ··let·initialized·=·false; | 389 | ··let·initialized·=·false; |
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| 188 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 188 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 189 | ······</p> | 189 | ······</p> |
| 190 | <p>Copyright·©·1996-202 | 190 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 191 | ····</footer> | 191 | ····</footer> |
| 192 | ··</div> | 192 | ··</div> |
| 193 | </main> | 193 | </main> |
| 194 | </div> | 194 | </div> |
| 195 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 195 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 196 | ··<script> | 196 | ··<script> |
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| 333 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 333 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 334 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 334 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 335 | ······</p> | 335 | ······</p> |
| 336 | <p>Copyright·©·1996-202 | 336 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 337 | ····</footer> | 337 | ····</footer> |
| 338 | ··</div> | 338 | ··</div> |
| 339 | </main> | 339 | </main> |
| 340 | </div> | 340 | </div> |
| 341 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 341 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 342 | ··<script> | 342 | ··<script> |
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| 144 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 144 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 145 | ······</p> | 145 | ······</p> |
| 146 | <p>Copyright·©·1996-202 | 146 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 147 | ····</footer> | 147 | ····</footer> |
| 148 | ··</div> | 148 | ··</div> |
| 149 | </main> | 149 | </main> |
| 150 | </div> | 150 | </div> |
| 151 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 151 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 152 | ··<script> | 152 | ··<script> |
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| 1848 | returns·a·match·specification,·which·turns·on·sequential·tracing·with·the | 1848 | returns·a·match·specification,·which·turns·on·sequential·tracing·with·the |
| 1849 | specified·<code·class="inline">Flags</code>.</p><p>This·match·specification·can·be·specified·as·the·last·argument·to·<code·class="inline">tp</code>·or·<code·class="inline">tpl</code>. | 1849 | specified·<code·class="inline">Flags</code>.</p><p>This·match·specification·can·be·specified·as·the·last·argument·to·<code·class="inline">tp</code>·or·<code·class="inline">tpl</code>. |
| 1850 | The·activated·<code·class="inline">Item</code>·then·becomes·a·<em>trigger</em>·for·sequential·tracing.·This·means | 1850 | The·activated·<code·class="inline">Item</code>·then·becomes·a·<em>trigger</em>·for·sequential·tracing.·This·means |
| 1851 | that·if·the·item·is·called·on·a·process·with·trace·flag·<code·class="inline">call</code>·set,·the·process | 1851 | that·if·the·item·is·called·on·a·process·with·trace·flag·<code·class="inline">call</code>·set,·the·process |
| 1852 | is·"contaminated"·with·token·<code·class="inline">seq_trace</code>.</p><p>If·<code·class="inline">Flags·=·all</code>,·all·possible·flags·are·set.</p><p>The·possible·values·for·<code·class="inline">SeqTraceFlag</code>·are·available·in·<a·href="../../../../lib/kernel-10.3/doc/html/seq_trace.html"><code·class="inline">seq_trace</code></a>.</p><p>For·a·description·of·the·<code·class="inline">match_spec()</code>·syntax,·see·section | 1852 | is·"contaminated"·with·token·<code·class="inline">seq_trace</code>.</p><p>If·<code·class="inline">Flags·=·all</code>,·all·possible·flags·are·set.</p><p>The·possible·values·for·<code·class="inline">SeqTraceFlag</code>·are·available·in·<a·href="../../../../lib/kernel-10.3/doc/html/seq_trace.html"><code·class="inline">seq_trace</code></a>.</p><p>For·a·description·of·the·<code·class="inline">match_spec()</code>·syntax,·see·section |
| 1853 | <a·href="../../../../erts-16.0/doc/html/match_spec.html"><code·class="inline">Match·Specifications·in·Erlang</code></a>·in·ERTS,·which | 1853 | <a·href="../../../../erts-16.0/doc/html/match_spec.html"><code·class="inline">Match·Specifications·in·Erlang</code></a>·in·ERTS,·which |
| 1854 | explains·the·general·match·specification·"language".</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>The·<em>system·tracer</em>·for·sequential·tracing·is·automatically·initiated·by·<code·class="inline">ttb</code> | 1854 | explains·the·general·match·specification·"language".</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>The·<em>system·tracer</em>·for·sequential·tracing·is·automatically·initiated·by·<code·class="inline">ttb</code> |
| 1855 | when·a·trace·port·is·started·with·<code·class="inline">ttb:tracer/0,1,2</code>.</p></section><p>An·example·of·how·to·use·function·<code·class="inline">seq_trigger_ms/0,1</code>·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">(tiger@durin)5>·</span><span·class="nc">ttb</span><span·class="p">:</span><span·class="nf">tracer</span><span·class="p"·data-group-id="01 | 1855 | when·a·trace·port·is·started·with·<code·class="inline">ttb:tracer/0,1,2</code>.</p></section><p>An·example·of·how·to·use·function·<code·class="inline">seq_trigger_ms/0,1</code>·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">(tiger@durin)5>·</span><span·class="nc">ttb</span><span·class="p">:</span><span·class="nf">tracer</span><span·class="p"·data-group-id="0010738675-1">(</span><span·class="p"·data-group-id="0010738675-1">)</span><span·class="p">.</span><span·class="w"> |
| 1856 | </span><span·class="p"·data-group-id="01 | 1856 | </span><span·class="p"·data-group-id="0010738675-2">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="p"·data-group-id="0010738675-3">[</span><span·class="ss">tiger@durin</span><span·class="p"·data-group-id="0010738675-3">]</span><span·class="p"·data-group-id="0010738675-2">}</span><span·class="gp·unselectable"> |
| 1857 | (tiger@durin)6>·</span><span·class="nc">ttb</span><span·class="p">:</span><span·class="nf">p</span><span·class="p"·data-group-id="01 | 1857 | (tiger@durin)6>·</span><span·class="nc">ttb</span><span·class="p">:</span><span·class="nf">p</span><span·class="p"·data-group-id="0010738675-4">(</span><span·class="ss">all</span><span·class="p">,</span><span·class="ss">call</span><span·class="p"·data-group-id="0010738675-4">)</span><span·class="p">.</span><span·class="w"> |
| 1858 | </span><span·class="p"·data-group-id="01 | 1858 | </span><span·class="p"·data-group-id="0010738675-5">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="p"·data-group-id="0010738675-6">{</span><span·class="p"·data-group-id="0010738675-7">[</span><span·class="ss">all</span><span·class="p"·data-group-id="0010738675-7">]</span[·...·truncated·by·diffoscope;·len:·253,·SHA:·37a88b8f3ade3476fef9bc17ad70271430f24e3178dfcfcca42dc68c273704ff·...·]-5">}</span><span·class="gp·unselectable"> |
| 1859 | (tiger@durin)7>·</span><span·class="nc">ttb</span><span·class="p">:</span><span·class="nf">tp</span><span·class="p"·data-group-id="01 | 1859 | (tiger@durin)7>·</span><span·class="nc">ttb</span><span·class="p">:</span><span·class="nf">tp</span><span·class="p"·data-group-id="0010738675-9">(</span><span·class="ss">mod</span><span·class="p">,</span><span·class="ss">func</span><span·class="p">,</span><span·class="nc">ttb</span><span·class="p">:</span><span·class="nf">seq_trigger_ms</span><span·class="p"·data-group-id="0010738675-1[·...·truncated·by·diffoscope;·len:·106,·SHA:·289cc64fe82020f39695bd9b5753b1556952ef1159d13c9f259e1c9c1ef92c5f·...·]-9">)</span><span·class="p">.</span><span·class="w"> |
| 1860 | </span><span·class="p"·data-group-id="01 | 1860 | </span><span·class="p"·data-group-id="0010738675-11">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="p"·data-group-id="0010738675-12">[</span><span·class="p"·data-group-id="0010738675-13">{</span><span·class="ss">matched</span><span·class="p">,</span><span·class="mi">1</s[·...·truncated·by·diffoscope;·len:·363,·SHA:·98ba2e8b0a817ad7b0f3fa9a24e02553b28cb43549a6498b8a9d9c8e0fd1dd3c·...·]-11">}</span><span·class="w"> |
| 1861 | </span><span·class="p"·data-group-id="01 | 1861 | </span><span·class="p"·data-group-id="0010738675-15">(</span><span·class="ss">tiger@durin</span><span·class="p"·data-group-id="0010738675-15">)</span><span·class="mi">8</span><span·class="o">></span></code></pre><p>Whenever·<code·class="inline">mod:func(...)</code>·is·called·after·this,·token·<code·class="inline">seq_trace</code>·is·set·on·the |
| 1862 | executing·process.</p> | 1862 | executing·process.</p> |
| 1863 | ··</section> | 1863 | ··</section> |
| 1864 | </section> | 1864 | </section> |
| 1865 | <section·class="detail"·id="start_trace/4"> | 1865 | <section·class="detail"·id="start_trace/4"> |
| 1866 | ··<div·class="detail-header"> | 1866 | ··<div·class="detail-header"> |
| 1867 | ····<a·href="#start_trace/4"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 1867 | ····<a·href="#start_trace/4"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| Offset 1891, 22 lines modified | Offset 1891, 22 lines modified | ||
| 1891 | ·························TracerOpts·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>(), | 1891 | ·························TracerOpts·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>(), |
| 1892 | ·························Result·::·{ok,·[{<a·href="#t:item/0">item</a>(),·<a·href="#t:match_desc/0">match_desc</a>()}]}.</pre> | 1892 | ·························Result·::·{ok,·[{<a·href="#t:item/0">item</a>(),·<a·href="#t:match_desc/0">match_desc</a>()}]}.</pre> |
| 1893 | ······</div> | 1893 | ······</div> |
| 1894 | <p>This·function·is·a·shortcut·allowing·to·start·a·trace·with·one·command.·Each | 1894 | <p>This·function·is·a·shortcut·allowing·to·start·a·trace·with·one·command.·Each |
| 1895 | tuple·in·<code·class="inline">Patterns</code>·is·converted·to·a·list,·which·in·turn·is·passed·to | 1895 | tuple·in·<code·class="inline">Patterns</code>·is·converted·to·a·list,·which·in·turn·is·passed·to |
| 1896 | <code·class="inline">ttb:tpl/2,3,4</code>.</p><p>The·call:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="nc">ttb</span><span·class="p">:</span><span·class="nf">start_trace</span><span·class="p"·data-group-id=" | 1896 | <code·class="inline">ttb:tpl/2,3,4</code>.</p><p>The·call:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="nc">ttb</span><span·class="p">:</span><span·class="nf">start_trace</span><span·class="p"·data-group-id="4379555818-1">(</span><span·class="p"·data-group-id="4379555818-2">[</span><span·class="n">Node</span><span·class="p">,</span><span·class="w">·</span><span·class="n">OtherNode</span><span·class="p"·data-group-id="4379555818-2">]</span><span·class="p">,</span><span·class="w"> |
| 1897 | ··················</span><span·class="p"·data-group-id=" | 1897 | ··················</span><span·class="p"·data-group-id="4379555818-3">[</span><span·class="p"·data-group-id="4379555818-4">{</span><span·class="ss">mod</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">foo</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="[·...·truncated·by·diffoscope;·len:·498,·SHA:·7177112d5a483336f3e0b81bec1cd5d7664a73ebbbc1896b3b81e27b5da9921a·...·]-3">]</span><span·class="p">,</span><span·class="w"> |
| 1898 | ··················</span><span·class="p"·data-group-id=" | 1898 | ··················</span><span·class="p"·data-group-id="4379555818-7">{</span><span·class="ss">all</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">call</span><span·class="p"·data-group-id="4379555818-7">}</span><span·class="p">,</span><span·class="w"> |
| 1899 | ··················</span><span·class="p"·data-group-id=" | 1899 | ··················</span><span·class="p"·data-group-id="4379555818-8">[</span><span·class="p"·data-group-id="4379555818-9">{</span><span·class="ss">file</span><span·class="p">,</span><span·class="w">·</span><span·class="n">File</span><span·class="p"·data-group-id="4379555818-9">}</span><span·class="p">,</span><[·...·truncated·by·diffoscope;·len:·1094,·SHA:·ba4dea2df410f6f04997913fc9d8b10ba099243aca356902322b35abe8fb0ad7·...·]6-2">]</span><span·class="p">,</span><span·class="w"> |
| 1900 | ··················</span><span·class="p"·data-group-id=" | 1900 | ··················</span><span·class="p"·data-group-id="8360591636-3">[</span><span·class="p"·data-group-id="8360591636-4">{</span><span·class="ss">file</span><span·class="p">,</span><span·class="w">·</span><span·class="n">File</span><span·class="p"·data-group-id="8360591636-4">}</span><span·class="p">,</span><[·...·truncated·by·diffoscope;·len:·587,·SHA:·d3d2ef128a7dcf1e5a52e3b79a795f324c849e69440547543359276437d6444b·...·]6-1">)</span><span·class="p">,</span><span·class="w"> |
| 1901 | </span><span·class="nc">ttb</span><span·class="p">:</span><span·class="nf">tpl</span><span·class="p"·data-group-id=" | 1901 | </span><span·class="nc">ttb</span><span·class="p">:</span><span·class="nf">tpl</span><span·class="p"·data-group-id="8360591636-7">(</span><span·class="ss">mod</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">foo</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8360591636-8">[</span><span·class="p"·data-group-id="[·...·truncated·by·diffoscope;·len:·62,·SHA:·0be1570344ce0bf6f5d7ec191538bb9d255fb4c1b7b119145071ccb0812a2f4e·...·]6-7">)</span><span·class="p">,</span><span·class="w"> |
| 1902 | </span><span·class="nc">ttb</span><span·class="p">:</span><span·class="nf">tpl</span><span·class="p"·data-group-id=" | 1902 | </span><span·class="nc">ttb</span><span·class="p">:</span><span·class="nf">tpl</span><span·class="p"·data-group-id="8360591636-9">(</span><span·class="ss">mod</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">bar</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">2</span><span·class="p">,</span><span·class="w">·</span><span·class[·...·truncated·by·diffoscope;·len:·137,·SHA:·23006651e24e2ee1ae64046f09b6175545db947b8b65bc032b3ce2be63a32e8b·...·]6-9">)</span><span·class="p">,</span><span·class="w"> |
| 1903 | </span><span·class="nc">ttb</span><span·class="p">:</span><span·class="nf">p</span><span·class="p"·data-group-id=" | 1903 | </span><span·class="nc">ttb</span><span·class="p">:</span><span·class="nf">p</span><span·class="p"·data-group-id="8360591636-11">(</span><span·class="ss">all</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">call</span><span·class="p"·data-group-id="8360591636-11">)</span><span·class="p">.</span></code></pre> |
| 1904 | ··</section> | 1904 | ··</section> |
| 1905 | </section> | 1905 | </section> |
| 1906 | <section·class="detail"·id="stop/0"> | 1906 | <section·class="detail"·id="stop/0"> |
| 1907 | ··<div·class="detail-header"> | 1907 | ··<div·class="detail-header"> |
| 1908 | ····<a·href="#stop/0"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 1908 | ····<a·href="#stop/0"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 1909 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 1909 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 2440, 15 lines modified | Offset 2440, 15 lines modified | ||
| 2440 | ······<p·class="built-using"> | 2440 | ······<p·class="built-using"> |
| 2441 | ········Built·using | 2441 | ········Built·using |
| 2442 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 2442 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 2443 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 2443 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 2444 | ······</p> | 2444 | ······</p> |
| 2445 | <p>Copyright·©·1996-202 | 2445 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 2446 | ····</footer> | 2446 | ····</footer> |
| 2447 | ··</div> | 2447 | ··</div> |
| 2448 | </main> | 2448 | </main> |
| 2449 | </div> | 2449 | </div> |
| 2450 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 2450 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 2451 | ··<script> | 2451 | ··<script> |
| 2452 | ··let·initialized·=·false; | 2452 | ··let·initialized·=·false; |
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| 143 | ······<p·class="built-using"> | 143 | ······<p·class="built-using"> |
| 144 | ········Built·using | 144 | ········Built·using |
| 145 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 145 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 146 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 146 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 147 | ······</p> | 147 | ······</p> |
| 148 | <p>Copyright·©·1996-202 | 148 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 149 | ····</footer> | 149 | ····</footer> |
| 150 | ··</div> | 150 | ··</div> |
| 151 | </main> | 151 | </main> |
| 152 | </div> | 152 | </div> |
| 153 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 153 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 154 | ··<script> | 154 | ··<script> |
| 155 | ··let·initialized·=·false; | 155 | ··let·initialized·=·false; |
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| 181 | ······<p·class="built-using"> | 181 | ······<p·class="built-using"> |
| 182 | ········Built·using | 182 | ········Built·using |
| 183 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 183 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 184 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 184 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 185 | ······</p> | 185 | ······</p> |
| 186 | <p>Copyright·©·1996-202 | 186 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 187 | ····</footer> | 187 | ····</footer> |
| 188 | ··</div> | 188 | ··</div> |
| 189 | </main> | 189 | </main> |
| 190 | </div> | 190 | </div> |
| 191 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 191 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 192 | ··<script> | 192 | ··<script> |
| 193 | ··let·initialized·=·false; | 193 | ··let·initialized·=·false; |
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| 268 | ······<p·class="built-using"> | 268 | ······<p·class="built-using"> |
| 269 | ········Built·using | 269 | ········Built·using |
| 270 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 270 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 271 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 271 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 272 | ······</p> | 272 | ······</p> |
| 273 | <p>Copyright·©·1996-202 | 273 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 274 | ····</footer> | 274 | ····</footer> |
| 275 | ··</div> | 275 | ··</div> |
| 276 | </main> | 276 | </main> |
| 277 | </div> | 277 | </div> |
| 278 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 278 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 279 | ··<script> | 279 | ··<script> |
| 280 | ··let·initialized·=·false; | 280 | ··let·initialized·=·false; |
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| 267 | ······<p·class="built-using"> | 267 | ······<p·class="built-using"> |
| 268 | ········Built·using | 268 | ········Built·using |
| 269 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 269 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 270 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 270 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 271 | ······</p> | 271 | ······</p> |
| 272 | <p>Copyright·©·1996-202 | 272 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 273 | ····</footer> | 273 | ····</footer> |
| 274 | ··</div> | 274 | ··</div> |
| 275 | </main> | 275 | </main> |
| 276 | </div> | 276 | </div> |
| 277 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 277 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 278 | ··<script> | 278 | ··<script> |
| 279 | ··let·initialized·=·false; | 279 | ··let·initialized·=·false; |
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| 153 | ··<span·class="text">Using·the·Erlang·API</span> | 153 | ··<span·class="text">Using·the·Erlang·API</span> |
| 154 | </h2> | 154 | </h2> |
| 155 | <p>The·following·dialog·within·the·Erlang·shell·illustrates·the·functionality·of | 155 | <p>The·following·dialog·within·the·Erlang·shell·illustrates·the·functionality·of |
| 156 | the·Erlang·ODBC·interface.·The·table·used·in·the·example·does·not·have·any | 156 | the·Erlang·ODBC·interface.·The·table·used·in·the·example·does·not·have·any |
| 157 | relevance·to·anything·that·exist·in·reality,·it·is·just·a·simple·example.·The | 157 | relevance·to·anything·that·exist·in·reality,·it·is·just·a·simple·example.·The |
| 158 | example·was·created·using·<code·class="inline">sqlserver·7.0·with·servicepack·1</code>·as·database·and·the | 158 | example·was·created·using·<code·class="inline">sqlserver·7.0·with·servicepack·1</code>·as·database·and·the |
| 159 | ODBC·driver·for·<code·class="inline">sqlserver</code>·with·version·<code·class="inline">2000.80.194.00</code>.</p><pre><code·class="text">·1·>·odbc:start(). | 159 | ODBC·driver·for·<code·class="inline">sqlserver</code>·with·version·<code·class="inline">2000.80.194.00</code>.</p><pre><code·class="text">·1·>·odbc:start(). |
| 160 | ······ok</code></pre><p>Connect·to·the·database</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">·</span><span·class="mi">2</span><span·class="w">·</span><span·class="o">></span><span·class="w">·</span><span·class="p"·data-group-id=" | 160 | ······ok</code></pre><p>Connect·to·the·database</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">·</span><span·class="mi">2</span><span·class="w">·</span><span·class="o">></span><span·class="w">·</span><span·class="p"·data-group-id="4005654327-1">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Ref</span><span·class="p"·data-group-id="4005654327-1">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·cla[·...·truncated·by·diffoscope;·len:·394,·SHA:·61ad54a21147a4ea463ef3fe7864d2cabe16c8874ac77d68e03d54d48d11580a·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 161 | ······</span><span·class="p"·data-group-id=" | 161 | ······</span><span·class="p"·data-group-id="4005654327-4">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="o"><</span><span·class="mf">0.342</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="p"·data-group-id="4005654327-4">}</span></code></pre><p>Create·a·table</p><pre><code·class="text">·3·>·odbc:sql_query(Ref,·"CREATE·TABLE·EMPLOYEE·(NR·integer, |
| 162 | ······FIRSTNAME··char·varying(20),·LASTNAME··char·varying(20),·GENDER·char(1), | 162 | ······FIRSTNAME··char·varying(20),·LASTNAME··char·varying(20),·GENDER·char(1), |
| 163 | ······PRIMARY·KEY(NR))"). | 163 | ······PRIMARY·KEY(NR))"). |
| 164 | ······{updated,undefined}</code></pre><p>Insert·some·data</p><pre><code·class="text">·4·>·odbc:sql_query(Ref,·"INSERT·INTO·EMPLOYEE·VALUES(1,·'Jane',·'Doe',·'F')"). | 164 | ······{updated,undefined}</code></pre><p>Insert·some·data</p><pre><code·class="text">·4·>·odbc:sql_query(Ref,·"INSERT·INTO·EMPLOYEE·VALUES(1,·'Jane',·'Doe',·'F')"). |
| 165 | ······{updated,1}</code></pre><p>Check·what·data·types·the·database·assigned·for·the·columns.·Hopefully·this·is | 165 | ······{updated,1}</code></pre><p>Check·what·data·types·the·database·assigned·for·the·columns.·Hopefully·this·is |
| 166 | not·a·surprise,·some·times·it·can·be!·These·are·the·data·types·that·you·should | 166 | not·a·surprise,·some·times·it·can·be!·These·are·the·data·types·that·you·should |
| 167 | use·if·you·want·to·do·a·parameterized·query.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">·</span><span·class="mi">5</span><span·class="w">·</span><span·class="o">></span><span·class="w">·</span><span·class="nc">odbc</span><span·class="p">:</span><span·class="nf">describe_table</span><span·class="p"·data-group-id=" | 167 | use·if·you·want·to·do·a·parameterized·query.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">·</span><span·class="mi">5</span><span·class="w">·</span><span·class="o">></span><span·class="w">·</span><span·class="nc">odbc</span><span·class="p">:</span><span·class="nf">describe_table</span><span·class="p"·data-group-id="7786900604-1">(</span><span·class="n">Ref</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"EMPLOYEE"</span><span·class="p"·data-group-id="7786900604-1">)</span><span·class="p">.</span><span·class="w"> |
| 168 | ······</span><span·class="p"·data-group-id=" | 168 | ······</span><span·class="p"·data-group-id="7786900604-2">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="7786900604-3">[</span><span·class="p"·data-group-id="7786900604-4">{</span><span·class="s">"NR"</span><span·class="p">,[·...·truncated·by·diffoscope;·len:·107,·SHA:·c0634c1ab20c4393623eee9e842bf0b82f291412a1fa3692d4ccb3b8213caa1c·...·]-4">}</span><span·class="p">,</span><span·class="w"> |
| 169 | ············</span><span·class="p"·data-group-id=" | 169 | ············</span><span·class="p"·data-group-id="7786900604-5">{</span><span·class="s">"FIRSTNAME"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="7786900604-6">{</span><span·class="ss">sql_varchar</span><span·class="p">,</span><span·class="w">·</span><span·[·...·truncated·by·diffoscope;·len:·114,·SHA:·36c5857aede21559f93e8035f00c48b7fc85fe6b5ef0f595b91fb6f0621927ef·...·]-5">}</span><span·class="p">,</span><span·class="w"> |
| 170 | ············</span><span·class="p"·data-group-id=" | 170 | ············</span><span·class="p"·data-group-id="7786900604-7">{</span><span·class="s">"LASTNAME"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="7786900604-8">{</span><span·class="ss">sql_varchar</span><span·class="p">,</span><span·class="w">·</span><span·c[·...·truncated·by·diffoscope;·len:·113,·SHA:·5a8887d49495eb3e3b21c56e52a370647718a51b8646d8e3a82f1b67133809f9·...·]-7">}</span><span·class="w"> |
| 171 | ············</span><span·class="p"·data-group-id=" | 171 | ············</span><span·class="p"·data-group-id="7786900604-9">{</span><span·class="s">"GENDER"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="7786900604-10">{</span><span·class="ss">sql_char</span><span·class="p">,</span><span·class="w">·</span><span·class[·...·truncated·by·diffoscope;·len:·636,·SHA:·ef88aa73c3efcf6036b94bca90ce98e19b5af8da2995f1154db70653a2a9559d·...·]-1">(</span><span·class="n">Ref</span><span·class="p">,</span><span·class="s">"INSERT·INTO·EMPLOYEE·(NR,·FIRSTNAME,·"</span><span·class="w"> |
| 172 | ··················</span><span·class="s">"LASTNAME,·GENDER)·VALUES(?,·?,·?,·?)"</span><span·class="p">,</span><span·class="w"> | 172 | ··················</span><span·class="s">"LASTNAME,·GENDER)·VALUES(?,·?,·?,·?)"</span><span·class="p">,</span><span·class="w"> |
| 173 | ···················</span><span·class="p"·data-group-id=" | 173 | ···················</span><span·class="p"·data-group-id="6109710237-2">[</span><span·class="p"·data-group-id="6109710237-3">{</span><span·class="ss">sql_integer</span><span·class="p">,</span><span·class="p"·data-group-id="6109710237-4">[</span><span·class="mi">2</span><span·class="p">,</span><span·class="mi">3</[·...·truncated·by·diffoscope;·len:·344,·SHA:·03263967e48ae396ca77f91e805ea40cb33831407cc7139249912d800de7a424·...·]-3">}</span><span·class="p">,</span><span·class="w"> |
| 174 | ····················</span><span·class="p"·data-group-id=" | 174 | ····················</span><span·class="p"·data-group-id="6109710237-5">{</span><span·class="p"·data-group-id="6109710237-6">{</span><span·class="ss">sql_varchar</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">20</span><span·class="p"·data-group-id="6109710237-6">}</span><span·class="p">,</span><span·class="w"> |
| 175 | ·····························</span><span·class="p"·data-group-id=" | 175 | ·····························</span><span·class="p"·data-group-id="6109710237-7">[</span><span·class="s">"John"</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"Monica"</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"Ross"</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"Rachel"</span><span·class="p">,</span><span·class="w"> |
| 176 | ·····························</span><span·class="s">"Piper"</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"Prue"</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"Louise"</span><span·class="p"·data-group-id=" | 176 | ·····························</span><span·class="s">"Piper"</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"Prue"</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"Louise"</span><span·class="p"·data-group-id="6109710237-7">]</span><span·class="p"·data-group-id="6109710237-5">}</span><span·class="p">,</span><span·class="w"> |
| 177 | ···················</span><span·class="p"·data-group-id=" | 177 | ···················</span><span·class="p"·data-group-id="6109710237-8">{</span><span·class="p"·data-group-id="6109710237-9">{</span><span·class="ss">sql_varchar</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">20</span><span·class="p"·data-group-id="6109710237-9">}</span><span·class="p">,</span><span·class="w"> |
| 178 | ·····························</span><span·class="p"·data-group-id=" | 178 | ·····························</span><span·class="p"·data-group-id="6109710237-10">[</span><span·class="s">"Doe"</span><span·class="p">,</span><span·class="s">"Geller"</span><span·class="p">,</span><span·class="s">"Geller"</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"Green"</span><span·class="p">,</span><span·class="w"> |
| 179 | ······························</span><span·class="s">"Halliwell"</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"Halliwell"</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"Lane"</span><span·class="p"·data-group-id=" | 179 | ······························</span><span·class="s">"Halliwell"</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"Halliwell"</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"Lane"</span><span·class="p"·data-group-id="6109710237-10">]</span><span·class="p"·data-group-id="6109710237-8">}</span><span·class="p">,</span><span·class="w"> |
| 180 | ···················</span><span·class="p"·data-group-id=" | 180 | ···················</span><span·class="p"·data-group-id="6109710237-11">{</span><span·class="p"·data-group-id="6109710237-12">{</span><span·class="ss">sql_char</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">1</span><span·class="p"·data-group-id="6109710237-12">}</span><span·class="p">,</s[·...·truncated·by·diffoscope;·len:·680,·SHA:·789a1c428b268db5e693fe4bd5379b94d3e77660e9769b29388c1201c3d42ded·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 181 | ······</span><span·class="p"·data-group-id=" | 181 | ······</span><span·class="p"·data-group-id="6109710237-14">{</span><span·class="ss">updated</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">7</span><span·class="p"·data-group-id="6109710237-14">}</span></code></pre><p>Fetch·all·data·in·the·table·employee</p><pre><code·class="m[·...·truncated·by·diffoscope;·len:·438,·SHA:·4edd03156adc0f03fcc2d7f7f8654b8a7cf314e0c947fc503b8a76f2ab0e95da·...·]4-1">)</span><span·class="p">.</span><span·class="w"> |
| 182 | ····</span><span·class="p"·data-group-id=" | 182 | ····</span><span·class="p"·data-group-id="2572559754-2">{</span><span·class="ss">selected</span><span·class="p">,</span><span·class="p"·data-group-id="2572559754-3">[</span><span·class="s">"NR"</span><span·class="p">,</span><span·class="s">"FIRSTNAME"</span><span·class="p">,</s[·...·truncated·by·diffoscope;·len:·152,·SHA:·3b74ab68507c20115b44ab96b1255d0ee1a87e2e1b5e7cc88426acc7056e0ab8·...·]4-3">]</span><span·class="p">,</span><span·class="w"> |
| 183 | ··········</span><span·class="p"·data-group-id=" | 183 | ··········</span><span·class="p"·data-group-id="2572559754-4">[</span><span·class="p"·data-group-id="2572559754-5">{</span><span·class="mi">1</span><span·class="p">,</span><span·class="s">"Jane"</span><span·class="p">,</span><span·class="s">"Doe"</span><span·class="p">,</span><span·c[·...·truncated·by·diffoscope;·len:·69,·SHA:·89f38b4042a8d3a3ba29fd1797b798081147a3c651fce0715fb6b80243a5f6db·...·]4-5">}</span><span·class="p">,</span><span·class="w"> |
| 184 | ···········</span><span·class="p"·data-group-id=" | 184 | ···········</span><span·class="p"·data-group-id="2572559754-6">{</span><span·class="mi">2</span><span·class="p">,</span><span·class="s">"John"</span><span·class="p">,</span><span·class="s">"Doe"</span><span·class="p">,</span><span·class="s">"M"</span><span·class="p"·data-gro[·...·truncated·by·diffoscope;·len:·16,·SHA:·3b11ecce1d07fe08e7b73d561d4f35c81113e2e85689475a06a421e3221bc28c·...·]4-6">}</span><span·class="p">,</span><span·class="w"> |
| 185 | ···········</span><span·class="p"·data-group-id=" | 185 | ···········</span><span·class="p"·data-group-id="2572559754-7">{</span><span·class="mi">3</span><span·class="p">,</span><span·class="s">"Monica"</span><span·class="p">,</span><span·class="s">"Geller"</span><span·class="p">,</span><span·class="s">"F"</span><span·class="p"·dat[·...·truncated·by·diffoscope;·len:·21,·SHA:·01781d9a194dfbe3fe15b29ba81e4ae9314ffcacb81c162200a2280f3df640d6·...·]4-7">}</span><span·class="p">,</span><span·class="w"> |
| 186 | ···········</span><span·class="p"·data-group-id=" | 186 | ···········</span><span·class="p"·data-group-id="2572559754-8">{</span><span·class="mi">4</span><span·class="p">,</span><span·class="s">"Ross"</span><span·class="p">,</span><span·class="s">"Geller"</span><span·class="p">,</span><span·class="s">"M"</span><span·class="p"·data-[·...·truncated·by·diffoscope;·len:·19,·SHA:·e7b837e230c102c1dade18847c0bf8cb0cfaeb076d8e8d5e787757dc65c06a47·...·]4-8">}</span><span·class="p">,</span><span·class="w"> |
| 187 | ···········</span><span·class="p"·data-group-id=" | 187 | ···········</span><span·class="p"·data-group-id="2572559754-9">{</span><span·class="mi">5</span><span·class="p">,</span><span·class="s">"Rachel"</span><span·class="p">,</span><span·class="s">"Green"</span><span·class="p">,</span><span·class="s">"F"</span><span·class="p"·data[·...·truncated·by·diffoscope;·len:·20,·SHA:·d3f118c1df4dabfb54c7582f78bb8c970412d9ef707ff82fec698bbfaf2d38b8·...·]4-9">}</span><span·class="p">,</span><span·class="w"> |
| 188 | ···········</span><span·class="p"·data-group-id=" | 188 | ···········</span><span·class="p"·data-group-id="2572559754-10">{</span><span·class="mi">6</span><span·class="p">,</span><span·class="s">"Piper"</span><span·class="p">,</span><span·class="s">"Halliwell"</span><span·class="p">,</span><span·class="s">"F"</span><span·class="p"·[·...·truncated·by·diffoscope;·len:·24,·SHA:·bdcb648f210d4293af15a6d8a4fe1775a6a0bb58c32b72d651614d65142892f4·...·]4-10">}</span><span·class="p">,</span><span·class="w"> |
| 189 | ···········</span><span·class="p"·data-group-id=" | 189 | ···········</span><span·class="p"·data-group-id="2572559754-11">{</span><span·class="mi">7</span><span·class="p">,</span><span·class="s">"Prue"</span><span·class="p">,</span><span·class="s">"Halliwell"</span><span·class="p">,</span><span·class="s">"F"</span><span·class="p"·d[·...·truncated·by·diffoscope;·len:·23,·SHA:·c36fd7c6eb289187723a24fd9c8ea8d517daa721b8263ab16eacaaa84b7e8b68·...·]4-11">}</span><span·class="p">,</span><span·class="w"> |
| 190 | ···········</span><span·class="p"·data-group-id=" | 190 | ···········</span><span·class="p"·data-group-id="2572559754-12">{</span><span·class="mi">8</span><span·class="p">,</span><span·class="s">"Louise"</span><span·class="p">,</span><span·class="s">"Lane"</span><span·class="p">,</span><span·class="s">"F"</span><span·class="p"·data[·...·truncated·by·diffoscope;·len:·151,·SHA:·8dc3d0200f4d80042dc0ab5f28e73129d8b0668c35a3cabbd7882acdd90d2b57·...·]4-2">}</span></code></pre><p>Associate·a·result·set·containing·the·whole·table·<code·class="inline">EMPLOYEE</code>·to·the·connection. |
| 191 | The·number·of·rows·in·the·result·set·is·returned.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">·</span><span·class="mi">8</span><span·class="w">·</span><span·class="o">></span><span·class="w">·</span><span·class="nc">odbc</span><span·class="p">:</span><span·class="nf">select_count</span><span·class="p"·data-group-id=" | 191 | The·number·of·rows·in·the·result·set·is·returned.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">·</span><span·class="mi">8</span><span·class="w">·</span><span·class="o">></span><span·class="w">·</span><span·class="nc">odbc</span><span·class="p">:</span><span·class="nf">select_count</span><span·class="p"·data-group-id="5535479353-1">(</span><span·class="n">Ref</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"SELECT·*·FROM·EMPLOYEE"</span><span·class="p"·data-group-id="5535479353-1">)</span><span·class="p">.</span><span·class="w"> |
| 192 | ······</span><span·class="p"·data-group-id=" | 192 | ······</span><span·class="p"·data-group-id="5535479353-2">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="mi">8</span><span·class="p"·data-group-id="5535479353-2">}</span></code></pre><p>You·can·always·traverse·the·result·set·sequential·by·using·next</p><pre><code·class="makeu[·...·truncated·by·diffoscope;·len:·349,·SHA:·5e9c87f13c187b42435def789f5c33b73e17d877f794c12f644af908f405d2dc·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 193 | ······</span><span·class="p"·data-group-id=" | 193 | ······</span><span·class="p"·data-group-id="2678508109-2">{</span><span·class="ss">selected</span><span·class="p">,</span><span·class="p"·data-group-id="2678508109-3">[</span><span·class="s">"NR"</span><span·class="p">,</span><span·class="s">"FIRSTNAME"</span><span·class="p">,</s[·...·truncated·by·diffoscope;·len:·1050,·SHA:·d387356c953d8f7a0f65eb4dee88188c44c51307251e1286c6e0b88d6ed10a27·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 194 | ······</span><span·class="p"·data-group-id="9 | 194 | ······</span><span·class="p"·data-group-id="9169984146-2">{</span><span·class="ss">selected</span><span·class="p">,</span><span·class="p"·data-group-id="9169984146-3">[</span><span·class="s">"NR"</span><span·class="p">,</span><span·class="s">"FIRSTNAME"</span><span·class="p">,</sp[·...·truncated·by·diffoscope;·len:·651,·SHA:·5b183cc1b0f21320c175bad17392d9131d45820c97644833a38b1b00f67bfbf1·...·]-2">}</span></code></pre><p>If·your·driver·supports·scrollable·cursors·you·have·a·little·more·freedom,·and |
| 195 | can·do·things·like·this.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">·</span><span·class="mi">11</span><span·class="w">·</span><span·class="o">></span><span·class="w">·</span><span·class="nc">odbc</span><span·class="p">:</span><span·class="nf">last</span><span·class="p"·data-group-id=" | 195 | can·do·things·like·this.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">·</span><span·class="mi">11</span><span·class="w">·</span><span·class="o">></span><span·class="w">·</span><span·class="nc">odbc</span><span·class="p">:</span><span·class="nf">last</span><span·class="p"·data-group-id="6421217499-1">(</span><span·class="n">Ref</span><span·class="p"·data-group-id="6421217499-1">)</span><span·class="p">.</span><span·class="w"> |
| 196 | ······</span><span·class="p"·data-group-id=" | 196 | ······</span><span·class="p"·data-group-id="6421217499-2">{</span><span·class="ss">selected</span><span·class="p">,</span><span·class="p"·data-group-id="6421217499-3">[</span><span·class="s">"NR"</span><span·class="p">,</span><span·class="s">"FIRSTNAME"</span><span·class="p">,</s[·...·truncated·by·diffoscope;·len:·1053,·SHA:·4ee1c29c41045198c2d0f75a29fe731e133bd895a1b224255393140ed8b885ca·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 197 | ······</span><span·class="p"·data-group-id=" | 197 | ······</span><span·class="p"·data-group-id="4344278447-2">{</span><span·class="ss">selected</span><span·class="p">,</span><span·class="p"·data-group-id="4344278447-3">[</span><span·class="s">"NR"</span><span·class="p">,</span><span·class="s">"FIRSTNAME"</span><span·class="p">,</s[·...·truncated·by·diffoscope;·len:·1057,·SHA:·5ec8cb8d92e9cc706960b014e3e14f1413568885e2140da39468b3f0667b09b2·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 198 | ······</span><span·class="p"·data-group-id=" | 198 | ······</span><span·class="p"·data-group-id="1051307014-2">{</span><span·class="ss">selected</span><span·class="p">,</span><span·class="p"·data-group-id="1051307014-3">[</span><span·class="s">"NR"</span><span·class="p">,</span><span·class="s">"FIRSTNAME"</span><span·class="p">,</s[·...·truncated·by·diffoscope;·len:·1050,·SHA:·3ea90ebab82ce44321e2d768bb087dec374d765908f5c0b04cf07990ea250ff8·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 199 | ······</span><span·class="p"·data-group-id=" | 199 | ······</span><span·class="p"·data-group-id="4738792009-2">{</span><span·class="ss">selected</span><span·class="p">,</span><span·class="p"·data-group-id="4738792009-3">[</span><span·class="s">"NR"</span><span·class="p">,</span><span·class="s">"FIRSTNAME"</span><span·class="p">,</s[·...·truncated·by·diffoscope;·len:·1318,·SHA:·7a6ff16258e13d5a4545db767ba8ac381e388db4c72ca81198fc72439c404fa0·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 200 | ·····</span><span·class="p"·data-group-id=" | 200 | ·····</span><span·class="p"·data-group-id="6089557538-2">{</span><span·class="ss">selected</span><span·class="p">,</span><span·class="p"·data-group-id="6089557538-3">[</span><span·class="s">"FIRSTNAME"</span><span·class="p">,</span><span·class="s">"NR"</span><span·class="p"·data[·...·truncated·by·diffoscope;·len:·21,·SHA:·7109e6e10188239cdf0682c665efc0c8bfddee789232f7a3bb1514422c9406aa·...·]-3">]</span><span·class="p">,</span><span·class="w"> |
| 201 | ··········</span><span·class="p"·data-group-id=" | 201 | ··········</span><span·class="p"·data-group-id="6089557538-4">[</span><span·class="p"·data-group-id="6089557538-5">{</span><span·class="s">"Jane"</span><span·class="p">,</span><span·class="mi">1</span><span·class="p"·data-group-id="6089557538-5">}</span><span·class="p">,</span><span·class="w"> |
| 202 | ···········</span><span·class="p"·data-group-id=" | 202 | ···········</span><span·class="p"·data-group-id="6089557538-6">{</span><span·class="s">"Monica"</span><span·class="p">,</span><span·class="mi">3</span><span·class="p"·data-group-id="6089557538-6">}</span><span·class="p">,</span><span·class="w"> |
| 203 | ···········</span><span·class="p"·data-group-id=" | 203 | ···········</span><span·class="p"·data-group-id="6089557538-7">{</span><span·class="s">"Rachel"</span><span·class="p">,</span><span·class="mi">5</span><span·class="p"·data-group-id="6089557538-7">}</span><span·class="p">,</span><span·class="w"> |
| 204 | ···········</span><span·class="p"·data-group-id=" | 204 | ···········</span><span·class="p"·data-group-id="6089557538-8">{</span><span·class="s">"Piper"</span><span·class="p">,</span><span·class="mi">6</span><span·class="p"·data-group-id="6089557538-8">}</span><span·class="p">,</span><span·class="w"> |
| 205 | ···········</span><span·class="p"·data-group-id=" | 205 | ···········</span><span·class="p"·data-group-id="6089557538-9">{</span><span·class="s">"Prue"</span><span·class="p">,</span><span·class="mi">7</span><span·class="p"·data-group-id="6089557538-9">}</span><span·class="p">,</span><span·class="w"> |
| 206 | ···········</span><span·class="p"·data-group-id=" | 206 | ···········</span><span·class="p"·data-group-id="6089557538-10">{</span><span·class="s">"Louise"</span><span·class="p">,</span><span·class="mi">8</span><span·class="p"·data-group-id="6089557538-10">}</span><span·class="p"·data-group-id="6089557538-4">]</span><span·class="p"·data-group-id="60895[·...·truncated·by·diffoscope;·len:·5,·SHA:·6af8dde5ab37488cbfad05c6809b6ed49029178d7ba8686dfeb5591993dc0a46·...·]-2">}</span></code></pre><p>Fetch·the·fields·<code·class="inline">FIRSTNAME</code>and·<code·class="inline">NR</code>for·all·female·employees·and·sort·them·on |
| 207 | the·field·<code·class="inline">FIRSTNAME</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">·</span><span·class="mi">16</span><span·class="w">·</span><span·class="o">></span><span·class="w">·</span><span·class="nc">odbc</span><span·class="p">:</span><span·class="nf">sql_query</span><span·class="p"·data-group-id=" | 207 | the·field·<code·class="inline">FIRSTNAME</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">·</span><span·class="mi">16</span><span·class="w">·</span><span·class="o">></span><span·class="w">·</span><span·class="nc">odbc</span><span·class="p">:</span><span·class="nf">sql_query</span><span·class="p"·data-group-id="0941320825-1">(</span><span·class="n">Ref</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"SELECT·FIRSTNAME,·NR·FROM·EMPLOYEE·WHERE·GENDER·=·'F' |
| 208 | ······ORDER·BY·FIRSTNAME"</span><span·class="p"·data-group-id=" | 208 | ······ORDER·BY·FIRSTNAME"</span><span·class="p"·data-group-id="0941320825-1">)</span><span·class="p">.</span><span·class="w"> |
| 209 | ····</span><span·class="p"·data-group-id=" | 209 | ····</span><span·class="p"·data-group-id="0941320825-2">{</span><span·class="ss">selected</span><span·class="p">,</span><span·class="p"·data-group-id="0941320825-3">[</span><span·class="s">"FIRSTNAME"</span><span·class="p">,</span><span·class="s">"NR"</span><span·class="p"·data[·...·truncated·by·diffoscope;·len:·21,·SHA:·8d63d4152051fbf5c0fb279d12455040cdd5451a0db09d68b18151403e371321·...·]-3">]</span><span·class="p">,</span><span·class="w"> |
| 210 | ··········</span><span·class="p"·data-group-id=" | 210 | ··········</span><span·class="p"·data-group-id="0941320825-4">[</span><span·class="p"·data-group-id="0941320825-5">{</span><span·class="s">"Jane"</span><span·class="p">,</span><span·class="mi">1</span><span·class="p"·data-group-id="0941320825-5">}</span><span·class="p">,</span><span·class="w"> |
| 211 | ···········</span><span·class="p"·data-group-id=" | 211 | ···········</span><span·class="p"·data-group-id="0941320825-6">{</span><span·class="s">"Louise"</span><span·class="p">,</span><span·class="mi">8</span><span·class="p"·data-group-id="0941320825-6">}</span><span·class="p">,</span><span·class="w"> |
| 212 | ···········</span><span·class="p"·data-group-id=" | 212 | ···········</span><span·class="p"·data-group-id="0941320825-7">{</span><span·class="s">"Monica"</span><span·class="p">,</span><span·class="mi">3</span><span·class="p"·data-group-id="0941320825-7">}</span><span·class="p">,</span><span·class="w"> |
| 213 | ···········</span><span·class="p"·data-group-id=" | 213 | ···········</span><span·class="p"·data-group-id="0941320825-8">{</span><span·class="s">"Piper"</span><span·class="p">,</span><span·class="mi">6</span><span·class="p"·data-group-id="0941320825-8">}</span><span·class="p">,</span><span·class="w"> |
| 214 | ···········</span><span·class="p"·data-group-id=" | 214 | ···········</span><span·class="p"·data-group-id="0941320825-9">{</span><span·class="s">"Prue"</span><span·class="p">,</span><span·class="mi">7</span><span·class="p"·data-group-id="0941320825-9">}</span><span·class="p">,</span><span·class="w"> |
| 215 | ···········</span><span·class="p"·data-group-id=" | 215 | ···········</span><span·class="p"·data-group-id="0941320825-10">{</span><span·class="s">"Rachel"</span><span·class="p">,</span><span·class="mi">5</span><span·class="p"·data-group-id="0941320825-10">}</span><span·class="p"·data-group-id="0941320825-4">]</span><span·class="p"·data-group-id="09413[·...·truncated·by·diffoscope;·len:·5,·SHA:·677b827c43cb04f62c6781684fcc759eba0e9c385103f3b2e3f9c1a1d74895aa·...·]-2">}</span></code></pre><p>Associate·a·result·set·that·contains·the·fields·<code·class="inline">FIRSTNAME</code>·and·<code·class="inline">NR</code>for·all |
| 216 | female·employees·to·the·connection.·The·number·of·rows·in·the·result·set·is | 216 | female·employees·to·the·connection.·The·number·of·rows·in·the·result·set·is |
| 217 | returned.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">·</span><span·class="mi">17</span><span·class="w">·</span><span·class="o">></span><span·class="w">·</span><span·class="nc">odbc</span><span·class="p">:</span><span·class="nf">select_count</span><span·class="p"·data-group-id=" | 217 | returned.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">·</span><span·class="mi">17</span><span·class="w">·</span><span·class="o">></span><span·class="w">·</span><span·class="nc">odbc</span><span·class="p">:</span><span·class="nf">select_count</span><span·class="p"·data-group-id="3400746995-1">(</span><span·class="n">Ref</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"SELECT·FIRSTNAME,·NR·FROM·EMPLOYEE·WHERE·GENDER·=·'F'"</span><span·class="p"·data-group-id="3400746995-1">)</span><span·class="p">.</span><span·class="w"> |
| 218 | ······</span><span·class="p"·data-group-id=" | 218 | ······</span><span·class="p"·data-group-id="3400746995-2">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="mi">6</span><span·class="p"·data-group-id="3400746995-2">}</span></code></pre><p>A·few·more·ways·of·retrieving·parts·of·the·result·set·when·the·driver·supports |
| 219 | scrollable·cursors.·Note·that·next·will·work·even·without·support·for·scrollable | 219 | scrollable·cursors.·Note·that·next·will·work·even·without·support·for·scrollable |
| 220 | cursors.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">·</span><span·class="mi">18</span><span·class="w">·</span><span·class="o">></span><span·class="w">·</span><span·class="nc">odbc</span><span·class="p">:</span><span·class="nf">select</span><span·class="p"·data-group-id=" | 220 | cursors.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">·</span><span·class="mi">18</span><span·class="w">·</span><span·class="o">></span><span·class="w">·</span><span·class="nc">odbc</span><span·class="p">:</span><span·class="nf">select</span><span·class="p"·data-group-id="6690080172-1">(</span><span·class="n">Ref</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6690080172-2">{</span><span·class="ss">relative</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">2</span><s[·...·truncated·by·diffoscope;·len:·165,·SHA:·a7fb1ed8860947c0343c09821495114360dc52dcbf70e422b930f5a9949406f6·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 221 | ····</span><span·class="p"·data-group-id="3343854969-3">{</span><span·class="ss">selected</span><span·class="p">,</span><span·class="p"·data-group-id="3343854969-4">[</span><span·class="s">"FIRSTNAME"</span><span·class="p">,</span><span·class="s">"NR"</span><span·class="p"·data-group-id="3343854969-4">]</span><span·class="p">,</span><span·class="p"·data-group-id="3343854969-5">[</span><span·class="p"·data-group-id="3343854969-6">{</span><span·class="s">"Monica"</span><span·class="p">,</span><span·class="mi">3</span><span·class="p"·data-group-id="3343854969-6">}</span><span·class="p">,</span><span·class="p"·data-group-id="3343854969-7">{</span><span·class="s">"Rachel"</span><span·class="p">,</span><span·class="mi">5</span><span·class="p"·data-group-id="3343854969-7">}</span><span·class="p">,</span><span·class="p"·data-group-id="3343854969-8">{</span><span·class="s">"Piper"</span><span·class="p">,</span><span·class="mi">6</span><span·class="p"·data-group-id="3343854969-8">}</span><span·class="p"·data-group-id="3343854969-5">]</span><span·class="p"·data-group-id="3343854969-3">}</span></code></pre><pre><code·class="makeup·erlang"·translate="no"><span·class="w">·</span><span·class="mi">19</span><span·class="w">·</span><span·class="o">></span><span·class="w">·</span><span·class="nc">odbc</span><span·class="p">:</span><span·class="nf">select</span><span·class="p"·data-group-id="0272017096-1">(</span><span·class="n">Ref</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">next</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">2</span><span·class="p"·data-group-id="0272017096-1">)</span><span·class="p">.</span><span·class="w"> | ||
| 222 | ···· | 221 | ····</span><span·class="p"·data-group-id="6690080172-3">{</span><span·class="ss">selected</span><span·class="p">,</span><span·class="p"·data-group-id="6690080172-4">[</span><span·class="s">"FIRSTNAME"</span><span·class="p">,</span><span·class="s">&qu[·...·truncated·by·diffoscope;·len:·1426,·SHA:·b59e4cd1cb81a7e940c131bf9c6119988eec30b9e702aae39ca5a4f475d99a14·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 222 | ······</span><span·class="p"·data-group-id="6525591384-2">{</span><span·class="ss">selected</span><span·class="p">,</span><span·class="p"·data-group-id="6525591384-3">[</span><span·class="s">"FIRSTNAME"</span><span·class="p">,</span><span·class="s">"NR"</span><span·class="p"·data-group-id="6525591384-3">]</span><span·class="p">,</span><span·class="p"·data-group-id="6525591384-4">[</span><span·class="p"·data-group-id="6525591384-5">{</span><span·class="s">"Prue"</span><span·class="p">,</span><span·class="mi">7</span><span·class="p"·data-group-id="6525591384-5">}</span><span·class="p">,</span><span·class="p"·data-group-id="6525591384-6">{</span><span·class="s">"Louise"</span><span·class="p">,</span><span·class="mi">8</span><span·class="p"·data-group-id="6525591384-6">}</span><span·class="p"·data-group-id="6525591384-4">]</span><span·class="p"·data-group-id="6525591384-2">}</span></code></pre><pre><code·class="makeup·erlang"·translate="no"><span·class="w">·</span><span·class="mi">20</span><span·class="w">·</span><span·class="o">></span><span·class="w">·</span><span·class="nc">odbc</span><span·class="p">:</span><span·class="nf">select</span><span·class="p"·data-group-id="4378912535-1">(</span><span·class="n">Ref</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4378912535-2">{</span><span·class="ss">absolute</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">1</span><span·class="p"·data-group-id="4378912535-2">}</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">2</span><span·class="p"·data-group-id="4378912535-1">)</span><span·class="p">.</span><span·class="w"> | ||
| 223 | ······</span><span·class="p"·data-group-id=" | 223 | ······</span><span·class="p"·data-group-id="4378912535-3">{</span><span·class="ss">selected</span><span·class="p">,</span><span·class="p"·data-group-id="4378912535-4">[</span><span·class="s">"FIRSTNAME"</span><span·class="p">,</span><span·class="s">"NR"</span><span·class="p"·data[·...·truncated·by·diffoscope;·len:·1167,·SHA:·1ca14dfc73eb3b7024a9cd099c8595d737fd9418199a59bad2ebdb0d6e04d8e1·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 224 | ····</span><span·class="p"·data-group-id=" | 224 | ····</span><span·class="p"·data-group-id="2117393692-2">{</span><span·class="ss">selected</span><span·class="p">,</span><span·class="p"·data-group-id="2117393692-3">[</span><span·class="s">"FIRSTNAME"</span><span·class="p">,</span><span·class="s">"NR"</span><span·class="p"·data[·...·truncated·by·diffoscope;·len:·1351,·SHA:·cc4247121dad903a87622150f932f5aaff61270c8024c6f8d20ed725a1aed273·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 225 | ······</span><span·class="p"·data-group-id=" | 225 | ······</span><span·class="p"·data-group-id="0172905077-3">{</span><span·class="ss">selected</span><span·class="p">,</span><span·class="p"·data-group-id="0172905077-4">[</span><span·class="s">"FIRSTNAME"</span><span·class="p">,</span><span·class="s">"NR"</span><span·class="p"·data[·...·truncated·by·diffoscope;·len:·21,·SHA:·4692c59cc6edae33fa33304f45268ba4e829a70119527236fe207499d64d75b7·...·]-4">]</span><span·class="p">,</span><span·class="w"> |
| 226 | ················</span><span·class="p"·data-group-id=" | 226 | ················</span><span·class="p"·data-group-id="0172905077-5">[</span><span·class="p"·data-group-id="0172905077-6">{</span><span·class="s">"Jane"</span><span·class="p">,</span><span·class="mi">1</span><span·class="p"·data-group-id="0172905077-6">}</span><span·class="p">,</span><span·class="p"·[·...·truncated·by·diffoscope;·len:·1082,·SHA:·6a82ddb1b92f16baecbf230cb39e4dced8e0c246781b293a3adbcef2a73c4d3e·...·]-1">(</span><span·class="n">Ref</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"SELECT·*·FROM·EMPLOYEE·WHERE·GENDER=?"</span><span·class="p">,</span><span·class="w"> |
| 227 | ······</span><span·class="p"·data-group-id="4 | 227 | ······</span><span·class="p"·data-group-id="1453634798-2">[</span><span·class="p"·data-group-id="1453634798-3">{</span><span·class="p"·data-group-id="1453634798-4">{</span><span·class="ss">sql_char</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">1</span><span·class="p"·data-gr[·...·truncated·by·diffoscope;·len:·367,·SHA:·8453a4b1e8fa2ce2b796ac7d89f7c40e431d27501ff567d1b02f6f0088b011cb·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 228 | ······</span><span·class="p"·data-group-id="4 | 228 | ······</span><span·class="p"·data-group-id="1453634798-6">{</span><span·class="ss">selected</span><span·class="p">,</span><span·class="p"·data-group-id="1453634798-7">[</span><span·class="s">"NR"</span><span·class="p">,</span><span·class="s">"FIRSTNAME"</span><span·class="p">,</s[·...·truncated·by·diffoscope;·len:·153,·SHA:·58ce57fb1384e97077598675335d12147c075933f3dc27297497f6c3ad4be001·...·]-7">]</span><span·class="p">,</span><span·class="w"> |
| 229 | ················</span><span·class="p"·data-group-id="4 | 229 | ················</span><span·class="p"·data-group-id="1453634798-8">[</span><span·class="p"·data-group-id="1453634798-9">{</span><span·class="mi">2</span><span·class="p">,</span><span·class="s">"John"</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"Doe"</span><span·c[·...·truncated·by·diffoscope;·len:·569,·SHA:·c6577099af5e52141d92953432e420d67f220908e156fc8ebf6d88e1cdef17c9·...·]-6">}</span></code></pre><p>Delete·the·table·<code·class="inline">EMPLOYEE</code>.</p><pre><code·class="text">·24·>·odbc:sql_query(Ref,·"DROP·TABLE·EMPLOYEE"). |
| 230 | ······{updated,undefined}</code></pre><p>Shut·down·the·connection.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">·</span><span·class="mi">25</span><span·class="w">·</span><span·class="o">></span><span·class="w">·</span><span·class="nc">odbc</span><span·class="p">:</span><span·class="nf">disconnect</span><span·class="p"·data-group-id="7 | 230 | ······{updated,undefined}</code></pre><p>Shut·down·the·connection.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">·</span><span·class="mi">25</span><span·class="w">·</span><span·class="o">></span><span·class="w">·</span><span·class="nc">odbc</span><span·class="p">:</span><span·class="nf">disconnect</span><span·class="p"·data-group-id="7734407500-1">(</span><span·class="n">Ref</span><span·class="p"·data-group-id="7734407500-1">)</span><span·class="p">.</span><span·class="w"> |
| 231 | ······</span><span·class="ss">ok</span></code></pre><p>Shut·down·the·application.</p><pre><code·class="text">·26·>·odbc:stop(). | 231 | ······</span><span·class="ss">ok</span></code></pre><p>Shut·down·the·application.</p><pre><code·class="text">·26·>·odbc:stop(). |
| 232 | ····=INFO·REPORT====·7-Jan-2004::17:00:59·=== | 232 | ····=INFO·REPORT====·7-Jan-2004::17:00:59·=== |
| 233 | ····application:·odbc | 233 | ····application:·odbc |
| 234 | ····exited:·stopped | 234 | ····exited:·stopped |
| 235 | ····type:·temporary | 235 | ····type:·temporary |
| 236 | ····ok</code></pre> | 236 | ····ok</code></pre> |
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| 283 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 283 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 284 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 284 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 285 | ······</p> | 285 | ······</p> |
| 286 | <p>Copyright·©·1996-202 | 286 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 287 | ····</footer> | 287 | ····</footer> |
| 288 | ··</div> | 288 | ··</div> |
| 289 | </main> | 289 | </main> |
| 290 | </div> | 290 | </div> |
| 291 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 291 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 292 | ··<script> | 292 | ··<script> |
| 293 | ··let·initialized·=·false; | 293 | ··let·initialized·=·false; |
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| 207 | ······</p> | 207 | ······</p> |
| 208 | <p>Copyright·©·1996-202 | 208 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 209 | ····</footer> | 209 | ····</footer> |
| 210 | ··</div> | 210 | ··</div> |
| 211 | </main> | 211 | </main> |
| 212 | </div> | 212 | </div> |
| 213 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 213 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 214 | ··<script> | 214 | ··<script> |
| 215 | ··let·initialized·=·false; | 215 | ··let·initialized·=·false; |
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| 1074 | ······</p> | 1074 | ······</p> |
| 1075 | <p>Copyright·©·1996-202 | 1075 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1076 | ····</footer> | 1076 | ····</footer> |
| 1077 | ··</div> | 1077 | ··</div> |
| 1078 | </main> | 1078 | </main> |
| 1079 | </div> | 1079 | </div> |
| 1080 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1080 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1081 | ··<script> | 1081 | ··<script> |
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| 1777 | ······</p> | 1777 | ······</p> |
| 1778 | <p>Copyright·©·1996-202 | 1778 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1779 | ····</footer> | 1779 | ····</footer> |
| 1780 | ··</div> | 1780 | ··</div> |
| 1781 | </main> | 1781 | </main> |
| 1782 | </div> | 1782 | </div> |
| 1783 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1783 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1784 | ··<script> | 1784 | ··<script> |
| 1785 | ··let·initialized·=·false; | 1785 | ··let·initialized·=·false; |
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| 143 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 143 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
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| 145 | ······</p> | 145 | ······</p> |
| 146 | <p>Copyright·©·1996-202 | 146 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 147 | ····</footer> | 147 | ····</footer> |
| 148 | ··</div> | 148 | ··</div> |
| 149 | </main> | 149 | </main> |
| 150 | </div> | 150 | </div> |
| 151 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 151 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 152 | ··<script> | 152 | ··<script> |
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| 145 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 145 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 146 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 146 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 147 | ······</p> | 147 | ······</p> |
| 148 | <p>Copyright·©·1996-202 | 148 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 149 | ····</footer> | 149 | ····</footer> |
| 150 | ··</div> | 150 | ··</div> |
| 151 | </main> | 151 | </main> |
| 152 | </div> | 152 | </div> |
| 153 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 153 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 154 | ··<script> | 154 | ··<script> |
| 155 | ··let·initialized·=·false; | 155 | ··let·initialized·=·false; |
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| 219 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 219 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 220 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 220 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 221 | ······</p> | 221 | ······</p> |
| 222 | <p>Copyright·©·1996-202 | 222 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 223 | ····</footer> | 223 | ····</footer> |
| 224 | ··</div> | 224 | ··</div> |
| 225 | </main> | 225 | </main> |
| 226 | </div> | 226 | </div> |
| 227 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 227 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 228 | ··<script> | 228 | ··<script> |
| 229 | ··let·initialized·=·false; | 229 | ··let·initialized·=·false; |
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| 623 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 623 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 624 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 624 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 625 | ······</p> | 625 | ······</p> |
| 626 | <p>Copyright·©·1996-202 | 626 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 627 | ····</footer> | 627 | ····</footer> |
| 628 | ··</div> | 628 | ··</div> |
| 629 | </main> | 629 | </main> |
| 630 | </div> | 630 | </div> |
| 631 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 631 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 632 | ··<script> | 632 | ··<script> |
| 633 | ··let·initialized·=·false; | 633 | ··let·initialized·=·false; |
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| 557 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 557 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 558 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 558 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 559 | ······</p> | 559 | ······</p> |
| 560 | <p>Copyright·©·1996-202 | 560 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 561 | ····</footer> | 561 | ····</footer> |
| 562 | ··</div> | 562 | ··</div> |
| 563 | </main> | 563 | </main> |
| 564 | </div> | 564 | </div> |
| 565 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 565 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 566 | ··<script> | 566 | ··<script> |
| 567 | ··let·initialized·=·false; | 567 | ··let·initialized·=·false; |
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| 675 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 675 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 676 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 676 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 677 | ······</p> | 677 | ······</p> |
| 678 | <p>Copyright·©·1996-202 | 678 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 679 | ····</footer> | 679 | ····</footer> |
| 680 | ··</div> | 680 | ··</div> |
| 681 | </main> | 681 | </main> |
| 682 | </div> | 682 | </div> |
| 683 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 683 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 684 | ··<script> | 684 | ··<script> |
| 685 | ··let·initialized·=·false; | 685 | ··let·initialized·=·false; |
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| 1053 | ······<p·class="built-using"> | 1053 | ······<p·class="built-using"> |
| 1054 | ········Built·using | 1054 | ········Built·using |
| 1055 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1055 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1056 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1056 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1057 | ······</p> | 1057 | ······</p> |
| 1058 | <p>Copyright·©·1996-202 | 1058 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1059 | ····</footer> | 1059 | ····</footer> |
| 1060 | ··</div> | 1060 | ··</div> |
| 1061 | </main> | 1061 | </main> |
| 1062 | </div> | 1062 | </div> |
| 1063 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1063 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1064 | ··<script> | 1064 | ··<script> |
| 1065 | ··let·initialized·=·false; | 1065 | ··let·initialized·=·false; |
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| 331 | ······<p·class="built-using"> | 331 | ······<p·class="built-using"> |
| 332 | ········Built·using | 332 | ········Built·using |
| 333 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 333 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 334 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 334 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 335 | ······</p> | 335 | ······</p> |
| 336 | <p>Copyright·©·1996-202 | 336 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 337 | ····</footer> | 337 | ····</footer> |
| 338 | ··</div> | 338 | ··</div> |
| 339 | </main> | 339 | </main> |
| 340 | </div> | 340 | </div> |
| 341 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 341 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 342 | ··<script> | 342 | ··<script> |
| 343 | ··let·initialized·=·false; | 343 | ··let·initialized·=·false; |
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| 1 | Zip·archive·data,·made·by·v6.1·UNIX,·extract·using·at·least·v1.0,·last·modified·Ju | 1 | Zip·archive·data,·made·by·v6.1·UNIX,·extract·using·at·least·v1.0,·last·modified·Jul·05·2026·23:54:00,·uncompressed·size·20,·method=store |
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| 203 | ······<p·class="built-using"> | 203 | ······<p·class="built-using"> |
| 204 | ········Built·using | 204 | ········Built·using |
| 205 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 205 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 206 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 206 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 207 | ······</p> | 207 | ······</p> |
| 208 | <p>Copyright·©·1996-202 | 208 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 209 | ····</footer> | 209 | ····</footer> |
| 210 | ··</div> | 210 | ··</div> |
| 211 | </main> | 211 | </main> |
| 212 | </div> | 212 | </div> |
| 213 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 213 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 214 | ··<script> | 214 | ··<script> |
| 215 | ··let·initialized·=·false; | 215 | ··let·initialized·=·false; |
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| 410 | ······<p·class="built-using"> | 410 | ······<p·class="built-using"> |
| 411 | ········Built·using | 411 | ········Built·using |
| 412 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 412 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 413 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 413 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 414 | ······</p> | 414 | ······</p> |
| 415 | <p>Copyright·©·1996-202 | 415 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 416 | ····</footer> | 416 | ····</footer> |
| 417 | ··</div> | 417 | ··</div> |
| 418 | </main> | 418 | </main> |
| 419 | </div> | 419 | </div> |
| 420 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 420 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 421 | ··<script> | 421 | ··<script> |
| 422 | ··let·initialized·=·false; | 422 | ··let·initialized·=·false; |
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| 141 | ······<p·class="built-using"> | 141 | ······<p·class="built-using"> |
| 142 | ········Built·using | 142 | ········Built·using |
| 143 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 143 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 144 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 144 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 145 | ······</p> | 145 | ······</p> |
| 146 | <p>Copyright·©·1996-202 | 146 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 147 | ····</footer> | 147 | ····</footer> |
| 148 | ··</div> | 148 | ··</div> |
| 149 | </main> | 149 | </main> |
| 150 | </div> | 150 | </div> |
| 151 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 151 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 152 | ··<script> | 152 | ··<script> |
| 153 | ··let·initialized·=·false; | 153 | ··let·initialized·=·false; |
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| 143 | ······<p·class="built-using"> | 143 | ······<p·class="built-using"> |
| 144 | ········Built·using | 144 | ········Built·using |
| 145 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 145 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 146 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 146 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 147 | ······</p> | 147 | ······</p> |
| 148 | <p>Copyright·©·1996-202 | 148 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 149 | ····</footer> | 149 | ····</footer> |
| 150 | ··</div> | 150 | ··</div> |
| 151 | </main> | 151 | </main> |
| 152 | </div> | 152 | </div> |
| 153 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 153 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 154 | ··<script> | 154 | ··<script> |
| 155 | ··let·initialized·=·false; | 155 | ··let·initialized·=·false; |
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| 190 | ······<p·class="built-using"> | 190 | ······<p·class="built-using"> |
| 191 | ········Built·using | 191 | ········Built·using |
| 192 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 192 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 193 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 193 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 194 | ······</p> | 194 | ······</p> |
| 195 | <p>Copyright·©·1996-202 | 195 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 196 | ····</footer> | 196 | ····</footer> |
| 197 | ··</div> | 197 | ··</div> |
| 198 | </main> | 198 | </main> |
| 199 | </div> | 199 | </div> |
| 200 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 200 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 201 | ··<script> | 201 | ··<script> |
| 202 | ··let·initialized·=·false; | 202 | ··let·initialized·=·false; |
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| 169 | <code·class="inline">error_location</code>·is·set·to·<code·class="inline">line</code>).</p></li></ul><p>The·code·must·return:</p><ul><li><p><strong><code·class="inline">{token,Token}</code></strong>·-·Return·<code·class="inline">Token</code>·to·the·caller.</p></li><li><p><strong><code·class="inline">{end_token,Token}</code></strong>·-·Return·<code·class="inline">Token</code>·and·is·last·token·in·a·tokens·call.</p></li><li><p><strong><code·class="inline">skip_token</code></strong>·-·Skip·this·token·completely.</p></li><li><p><strong><code·class="inline">{error,ErrString}</code></strong>·-·An·error·in·the·token,·<code·class="inline">ErrString</code>·is·a·string | 169 | <code·class="inline">error_location</code>·is·set·to·<code·class="inline">line</code>).</p></li></ul><p>The·code·must·return:</p><ul><li><p><strong><code·class="inline">{token,Token}</code></strong>·-·Return·<code·class="inline">Token</code>·to·the·caller.</p></li><li><p><strong><code·class="inline">{end_token,Token}</code></strong>·-·Return·<code·class="inline">Token</code>·and·is·last·token·in·a·tokens·call.</p></li><li><p><strong><code·class="inline">skip_token</code></strong>·-·Skip·this·token·completely.</p></li><li><p><strong><code·class="inline">{error,ErrString}</code></strong>·-·An·error·in·the·token,·<code·class="inline">ErrString</code>·is·a·string |
| 170 | describing·the·error.</p></li></ul><p>It·is·also·possible·to·push·back·characters·into·the·input·characters·with·the | 170 | describing·the·error.</p></li></ul><p>It·is·also·possible·to·push·back·characters·into·the·input·characters·with·the |
| 171 | following·returns:</p><ul><li><code·class="inline">{token,Token,PushBackList}</code></li><li><code·class="inline">{end_token,Token,PushBackList}</code></li><li><code·class="inline">{skip_token,PushBackList}</code></li></ul><p>These·have·the·same·meanings·as·the·normal·returns·but·the·characters·in | 171 | following·returns:</p><ul><li><code·class="inline">{token,Token,PushBackList}</code></li><li><code·class="inline">{end_token,Token,PushBackList}</code></li><li><code·class="inline">{skip_token,PushBackList}</code></li></ul><p>These·have·the·same·meanings·as·the·normal·returns·but·the·characters·in |
| 172 | <code·class="inline">PushBackList</code>·will·be·prepended·to·the·input·characters·and·scanned·for·the | 172 | <code·class="inline">PushBackList</code>·will·be·prepended·to·the·input·characters·and·scanned·for·the |
| 173 | next·token.·Note·that·pushing·back·a·newline·will·mean·the·line·numbering·will | 173 | next·token.·Note·that·pushing·back·a·newline·will·mean·the·line·numbering·will |
| 174 | no·longer·be·correct.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>Pushing·back·characters·gives·you·unexpected·possibilities·to·cause·the | 174 | no·longer·be·correct.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>Pushing·back·characters·gives·you·unexpected·possibilities·to·cause·the |
| 175 | scanner·to·loop!</p></section><p>The·following·example·would·match·a·simple·Erlang·integer·or·float·and·return·a | 175 | scanner·to·loop!</p></section><p>The·following·example·would·match·a·simple·Erlang·integer·or·float·and·return·a |
| 176 | token·which·could·be·sent·to·the·Erlang·parser:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">D</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="3 | 176 | token·which·could·be·sent·to·the·Erlang·parser:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">D</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="3282158959-1">[</span><span·class="mi">0</span><span·class="o">-</span><span·class="mi">9</span><span·class="p"·data-group-id="3282158959-1">]</span><span·class="w"> |
| 177 | </span><span·class="p"·data-group-id="3 | 177 | </span><span·class="p"·data-group-id="3282158959-2">{</span><span·class="n">D</span><span·class="p"·data-group-id="3282158959-2">}</span><span·class="o">+</span><span·class="w">·</span><span·class="p">:</span><span·class="w"> |
| 178 | ··</span><span·class="p"·data-group-id="3 | 178 | ··</span><span·class="p"·data-group-id="3282158959-3">{</span><span·class="ss">token</span><span·class="p">,</span><span·class="p"·data-group-id="3282158959-4">{</span><span·class="ss">integer</span><span·class="p">,</span><span·class="n">TokenLine</span><span·class="p">,</span><span·class="nf">l[·...·truncated·by·diffoscope;·len:·254,·SHA:·a4fb5b33ea7981d1671f5407da44262fd5555ff9ffd60fe64eb7468e5810c8c5·...·]-3">}</span><span·class="p">.</span><span·class="w"> |
| 179 | </span><span·class="p"·data-group-id="3 | 179 | </span><span·class="p"·data-group-id="3282158959-6">{</span><span·class="n">D</span><span·class="p"·data-group-id="3282158959-6">}</span><span·class="o">+</span><span·class="err">\</span><span·class="p">.</span><span·class="p"·data-group-id="3282158959-7">{</span><span·class="n">D</span><span·c[·...·truncated·by·diffoscope;·len:·755,·SHA:·753227ce2c1436c0c5290fe53f4a3e3a278cc47f400f062744805e0335024a71·...·]-8">)</span><span·class="o">?</span><span·class="w">·</span><span·class="p">:</span><span·class="w"> |
| 180 | ··</span><span·class="p"·data-group-id="3 | 180 | ··</span><span·class="p"·data-group-id="3282158959-12">{</span><span·class="ss">token</span><span·class="p">,</span><span·class="p"·data-group-id="3282158959-13">{</span><span·class="nb">float</span><span·class="p">,</span><span·class="n">TokenLine</span><span·class="p">,</span><span·class="nf">l[·...·truncated·by·diffoscope;·len:·255,·SHA:·09511eb09428e06d6c3bd15a9a19036d0307679185cd86aa08c831755f7582ad·...·]-12">}</span><span·class="p">.</span></code></pre><p>The·Erlang·code·in·the·<code·class="inline">Erlang·code.</code>·section·is·written·into·the·output·file |
| 181 | directly·after·the·module·declaration·and·predefined·exports·declaration,·making | 181 | directly·after·the·module·declaration·and·predefined·exports·declaration,·making |
| 182 | it·possible·to·add·extra·exports,·define·imports,·and·other·attributes,·which·are | 182 | it·possible·to·add·extra·exports,·define·imports,·and·other·attributes,·which·are |
| 183 | visible·in·the·whole·file.</p><h2·id="module-regular-expressions"·class="section-heading"> | 183 | visible·in·the·whole·file.</p><h2·id="module-regular-expressions"·class="section-heading"> |
| 184 | ··<a·href="#module-regular-expressions"·class="hover-link"> | 184 | ··<a·href="#module-regular-expressions"·class="hover-link"> |
| 185 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 185 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 186 | ··</a> | 186 | ··</a> |
| 187 | ··<span·class="text">Regular·Expressions</span> | 187 | ··<span·class="text">Regular·Expressions</span> |
| Offset 707, 15 lines modified | Offset 707, 15 lines modified | ||
| 707 | <p>This·is·a·re-entrant·call·to·try·and·scan·a·single·token·from·<code·class="inline">Chars</code>.</p><p>If·there·are·enough·characters·in·<code·class="inline">Chars</code>·to·either·scan·a·token·or | 707 | <p>This·is·a·re-entrant·call·to·try·and·scan·a·single·token·from·<code·class="inline">Chars</code>.</p><p>If·there·are·enough·characters·in·<code·class="inline">Chars</code>·to·either·scan·a·token·or |
| 708 | detect·an·error·then·this·will·be·returned·with | 708 | detect·an·error·then·this·will·be·returned·with |
| 709 | <code·class="inline">{done,...}</code>.·Otherwise·<code·class="inline">{cont,Cont}</code>·will·be·returned·where·<code·class="inline">Cont</code>·is | 709 | <code·class="inline">{done,...}</code>.·Otherwise·<code·class="inline">{cont,Cont}</code>·will·be·returned·where·<code·class="inline">Cont</code>·is |
| 710 | used·in·the·next·call·to·<code·class="inline">token()</code>·with·more·characters·to·try·an·scan | 710 | used·in·the·next·call·to·<code·class="inline">token()</code>·with·more·characters·to·try·an·scan |
| 711 | the·token.·This·is·continued·until·a·token·has·been·scanned.·<code·class="inline">Cont</code>·is | 711 | the·token.·This·is·continued·until·a·token·has·been·scanned.·<code·class="inline">Cont</code>·is |
| 712 | initially·<code·class="inline">[]</code>.</p><p>It·is·not·designed·to·be·called·directly·by·an·application,·but·is | 712 | initially·<code·class="inline">[]</code>.</p><p>It·is·not·designed·to·be·called·directly·by·an·application,·but·is |
| 713 | used·through·the·I/O·system·where·it·can·typically·be·called·in·an | 713 | used·through·the·I/O·system·where·it·can·typically·be·called·in·an |
| 714 | application·by:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">io</span><span·class="p">:</span><span·class="nf">request</span><span·class="p"·data-group-id=" | 714 | application·by:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">io</span><span·class="p">:</span><span·class="nf">request</span><span·class="p"·data-group-id="3580188453-1">(</span><span·class="n">InFile</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3580188453-2">{</span><span·class="ss">get_until</span><span·class="p">,</span><span·class="ss">unicode</span><span·class="p">[·...·truncated·by·diffoscope;·len:·393,·SHA:·7d6fa0f6947ccd0b1864a33afb8c7b27b3fccda6e72f4706a696545522e480f2·...·]-1">)</span><span·class="w"> |
| 715 | ··</span><span·class="p">-></span><span·class="w">·</span><span·class="n">TokenRet</span></code></pre> | 715 | ··</span><span·class="p">-></span><span·class="w">·</span><span·class="n">TokenRet</span></code></pre> |
| 716 | ··</section> | 716 | ··</section> |
| 717 | </section> | 717 | </section> |
| 718 | <section·class="detail"·id="tokens/2"> | 718 | <section·class="detail"·id="tokens/2"> |
| 719 | ··<div·class="detail-header"> | 719 | ··<div·class="detail-header"> |
| 720 | ····<a·href="#tokens/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 720 | ····<a·href="#tokens/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| Offset 792, 15 lines modified | Offset 792, 15 lines modified | ||
| 792 | scan·the·tokens.·This·is·continued·until·all·tokens·have·been | 792 | scan·the·tokens.·This·is·continued·until·all·tokens·have·been |
| 793 | scanned.·<code·class="inline">Cont</code>·is·initially·<code·class="inline">[]</code>.</p><p>This·functions·differs·from·<code·class="inline">token</code>·in·that·it·will·continue·to·scan·tokens·up | 793 | scanned.·<code·class="inline">Cont</code>·is·initially·<code·class="inline">[]</code>.</p><p>This·functions·differs·from·<code·class="inline">token</code>·in·that·it·will·continue·to·scan·tokens·up |
| 794 | to·and·including·an·<code·class="inline">{end_token,Token}</code>·has·been·scanned·(see·next·section).·It | 794 | to·and·including·an·<code·class="inline">{end_token,Token}</code>·has·been·scanned·(see·next·section).·It |
| 795 | will·then·return·all·the·tokens.·This·is·typically·used·for·scanning·grammars | 795 | will·then·return·all·the·tokens.·This·is·typically·used·for·scanning·grammars |
| 796 | like·Erlang·where·there·is·an·explicit·end·token,·<code·class="inline">'.'</code>.·If·no·end·token·is | 796 | like·Erlang·where·there·is·an·explicit·end·token,·<code·class="inline">'.'</code>.·If·no·end·token·is |
| 797 | found·then·the·whole·file·will·be·scanned·and·returned.·If·an·error·occurs·then | 797 | found·then·the·whole·file·will·be·scanned·and·returned.·If·an·error·occurs·then |
| 798 | all·tokens·up·to·and·including·the·next·end·token·will·be·skipped.</p><p>It·is·not·designed·to·be·called·directly·by·an·application,·but·used·through·the | 798 | all·tokens·up·to·and·including·the·next·end·token·will·be·skipped.</p><p>It·is·not·designed·to·be·called·directly·by·an·application,·but·used·through·the |
| 799 | I/O·system·where·it·can·typically·be·called·in·an·application·by:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">io</span><span·class="p">:</span><span·class="nf">request</span><span·class="p"·data-group-id=" | 799 | I/O·system·where·it·can·typically·be·called·in·an·application·by:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">io</span><span·class="p">:</span><span·class="nf">request</span><span·class="p"·data-group-id="5784069037-1">(</span><span·class="n">InFile</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="5784069037-2">{</span><span·class="ss">get_until</span><span·class="p">,</span><span·class="ss">unicode</span><span·class="p">[·...·truncated·by·diffoscope;·len:·394,·SHA:·9abd6a8c0064ae7b544abe169c82612c1d0bd6eae144c0888155ae71c01bcb81·...·]-1">)</span><span·class="w"> |
| 800 | ··</span><span·class="p">-></span><span·class="w">·</span><span·class="n">TokensRet</span></code></pre> | 800 | ··</span><span·class="p">-></span><span·class="w">·</span><span·class="n">TokensRet</span></code></pre> |
| 801 | ··</section> | 801 | ··</section> |
| 802 | </section> | 802 | </section> |
| 803 | ····</div> | 803 | ····</div> |
| 804 | ··</section> | 804 | ··</section> |
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| 962 | ······<p·class="built-using"> | 962 | ······<p·class="built-using"> |
| 963 | ········Built·using | 963 | ········Built·using |
| 964 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 964 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 965 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 965 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 966 | ······</p> | 966 | ······</p> |
| 967 | <p>Copyright·©·1996-202 | 967 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 968 | ····</footer> | 968 | ····</footer> |
| 969 | ··</div> | 969 | ··</div> |
| 970 | </main> | 970 | </main> |
| 971 | </div> | 971 | </div> |
| 972 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 972 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 973 | ··<script> | 973 | ··<script> |
| 974 | ··let·initialized·=·false; | 974 | ··let·initialized·=·false; |
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| 133 | </h2> | 133 | </h2> |
| 134 | <h3·id="improvements-and-new-features"·class="section-heading"> | 134 | <h3·id="improvements-and-new-features"·class="section-heading"> |
| 135 | ··<a·href="#improvements-and-new-features"·class="hover-link"> | 135 | ··<a·href="#improvements-and-new-features"·class="hover-link"> |
| 136 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 136 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 137 | ··</a> | 137 | ··</a> |
| 138 | ··<span·class="text">Improvements·and·New·Features</span> | 138 | ··<span·class="text">Improvements·and·New·Features</span> |
| 139 | </h3> | 139 | </h3> |
| 140 | <ul><li><p><a·href="https://www.erlang.org/eeps/eep-0069">EEP-69:·Nominal·Types</a>·has·been·implemented.·As·a·side·effect,·nominal·types·can·encode·opaque·types.·We·changed·all·opaque-handling·logic·and·improved·opaque·warnings·in·Dialyzer.</p><p>All·existing·Erlang·type·systems·are·structural:·two·types·are·seen·as·equivalent·if·their·structures·are·the·same.·Type·comparisons·are·based·on·the·structures·of·the·types,·not·on·how·the·user·explicitly·defines·them.·For·example,·in·the·following·example,·<code·class="inline">meter()</code>·and·<code·class="inline">foot()</code>·are·equivalent.·The·two·types·can·be·used·interchangeably.·Neither·of·them·differ·from·the·basic·type·<code·class="inline">integer()</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">type</span><span·class="w">·</span><span·class="nf">meter</span><span·class="p"·data-group-id=" | 140 | <ul><li><p><a·href="https://www.erlang.org/eeps/eep-0069">EEP-69:·Nominal·Types</a>·has·been·implemented.·As·a·side·effect,·nominal·types·can·encode·opaque·types.·We·changed·all·opaque-handling·logic·and·improved·opaque·warnings·in·Dialyzer.</p><p>All·existing·Erlang·type·systems·are·structural:·two·types·are·seen·as·equivalent·if·their·structures·are·the·same.·Type·comparisons·are·based·on·the·structures·of·the·types,·not·on·how·the·user·explicitly·defines·them.·For·example,·in·the·following·example,·<code·class="inline">meter()</code>·and·<code·class="inline">foot()</code>·are·equivalent.·The·two·types·can·be·used·interchangeably.·Neither·of·them·differ·from·the·basic·type·<code·class="inline">integer()</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">type</span><span·class="w">·</span><span·class="nf">meter</span><span·class="p"·data-group-id="1888594333-1">(</span><span·class="p"·data-group-id="1888594333-1">)</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="1888594333-2">(</span><[·...·truncated·by·diffoscope;·len:·40,·SHA:·23965e48ba413c5ae0705a16628f0d0d6293a6be45df0c2036f69fb0c6e593cb·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 141 | </span><span·class="p">-</span><span·class="na">type</span><span·class="w">·</span><span·class="nf">foot</span><span·class="p"·data-group-id=" | 141 | </span><span·class="p">-</span><span·class="na">type</span><span·class="w">·</span><span·class="nf">foot</span><span·class="p"·data-group-id="1888594333-3">(</span><span·class="p"·data-group-id="1888594333-3">)</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="1888594333-4">(</span><[·...·truncated·by·diffoscope;·len:·1061,·SHA:·a3888b3851f19db173e02f0e47c6a778ba37a943200d8bfa3426ce0033e249aa·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 142 | </span><span·class="p">-</span><span·class="na">nominal</span><span·class="w">·</span><span·class="nf">foot</span><span·class="p"·data-group-id=" | 142 | </span><span·class="p">-</span><span·class="na">nominal</span><span·class="w">·</span><span·class="nf">foot</span><span·class="p"·data-group-id="3209193477-3">(</span><span·class="p"·data-group-id="3209193477-3">)</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="3209193477-4">(</span><[·...·truncated·by·diffoscope;·len:·40,·SHA:·747e7e5ede68dd52584b4285dd0779e65d73aecc71948da8d1c0759f03626b80·...·]-4">)</span><span·class="p">.</span></code></pre><p>More·nominal·type-checking·rules·can·be·found·in·the·EEP.·It·is·worth·noting·that·most·work·for·adding·nominal·types·and·type-checking·is·in·<code·class="inline">erl_types.erl</code>.·The·rest·are·changes·that·removed·the·previous·opaque·type-checking,·and·added·an·improved·version·of·it·using·nominal·type-checking·with·reworked·warnings.</p><p>Backwards·compatibility·for·opaque·type-checking·is·not·preserved·by·this·PR.·Previous·opaque·warnings·can·appear·with·slightly·different·wordings.·A·new·kind·of·opaque·warning·<code·class="inline">opaque_union</code>·is·added,·together·with·a·Dialyzer·option·<code·class="inline">no_opaque_union</code>·to·turn·this·kind·of·warnings·off.</p><p>Own·Id:·OTP-19364·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9079"·title="">PR-9079</a></p></li><li><p>Fixed·licenses·in·files·and·added·ORT·curations·to·the·following·apps:·otp,·eldap,·erl_interface,·eunit,·parsetools,·stdlib,·syntax_tools,·and·ERTS.</p><p>Own·Id:·OTP-19478·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9376"·title="">PR-9376</a>,·<a·href="https://github.com/erlang/otp/pull/9402"·title="">PR-9402</a>,·<a·href="https://github.com/erlang/otp/pull/9819"·title="">PR-9819</a></p></li><li><p>The·license·and·copyright·header·has·changed·format·to·include·an·<code·class="inline">SPDX-License-Identifier</code>.·At·the·same·time,·most·files·have·been·updated·to·follow·a·uniform·standard·for·license·headers.</p><p>Own·Id:·OTP-19575·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9670"·title="">PR-9670</a></p></li></ul><h2·id="parsetools-2-6"·class="section-heading"> |
| 143 | ··<a·href="#parsetools-2-6"·class="hover-link"> | 143 | ··<a·href="#parsetools-2-6"·class="hover-link"> |
| 144 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 144 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 145 | ··</a> | 145 | ··</a> |
| 146 | ··<span·class="text">Parsetools·2.6</span> | 146 | ··<span·class="text">Parsetools·2.6</span> |
| 147 | </h2> | 147 | </h2> |
| 148 | <h3·id="improvements-and-new-features-1"·class="section-heading"> | 148 | <h3·id="improvements-and-new-features-1"·class="section-heading"> |
| 149 | ··<a·href="#improvements-and-new-features-1"·class="hover-link"> | 149 | ··<a·href="#improvements-and-new-features-1"·class="hover-link"> |
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| 744 | ······<p·class="built-using"> | 744 | ······<p·class="built-using"> |
| 745 | ········Built·using | 745 | ········Built·using |
| 746 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 746 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 747 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 747 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 748 | ······</p> | 748 | ······</p> |
| 749 | <p>Copyright·©·1996-202 | 749 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 750 | ····</footer> | 750 | ····</footer> |
| 751 | ··</div> | 751 | ··</div> |
| 752 | </main> | 752 | </main> |
| 753 | </div> | 753 | </div> |
| 754 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 754 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 755 | ··<script> | 755 | ··<script> |
| 756 | ··let·initialized·=·false; | 756 | ··let·initialized·=·false; |
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| 1 | Zip·archive·data,·made·by·v6.1·UNIX,·extract·using·at·least·v1.0,·last·modified·Ju | 1 | Zip·archive·data,·made·by·v6.1·UNIX,·extract·using·at·least·v1.0,·last·modified·Jul·05·2026·23:53:02,·uncompressed·size·20,·method=store |
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| 141 | ······<p·class="built-using"> | 141 | ······<p·class="built-using"> |
| 142 | ········Built·using | 142 | ········Built·using |
| 143 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 143 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 144 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 144 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 145 | ······</p> | 145 | ······</p> |
| 146 | <p>Copyright·©·1996-202 | 146 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 147 | ····</footer> | 147 | ····</footer> |
| 148 | ··</div> | 148 | ··</div> |
| 149 | </main> | 149 | </main> |
| 150 | </div> | 150 | </div> |
| 151 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 151 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 152 | ··<script> | 152 | ··<script> |
| 153 | ··let·initialized·=·false; | 153 | ··let·initialized·=·false; |
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| 158 | <code·class="inline">{Category,·Position,·Symbol}</code>.</p><p>If·a·terminal·symbol·is·the·only·member·of·a·category,·and·the·symbol·name·is | 158 | <code·class="inline">{Category,·Position,·Symbol}</code>.</p><p>If·a·terminal·symbol·is·the·only·member·of·a·category,·and·the·symbol·name·is |
| 159 | identical·to·the·category·name,·the·token·format·can·be·<code·class="inline">{Symbol,·Position}</code>.</p><p>A·list·of·tokens·produced·by·the·scanner·should·end·with·a·special | 159 | identical·to·the·category·name,·the·token·format·can·be·<code·class="inline">{Symbol,·Position}</code>.</p><p>A·list·of·tokens·produced·by·the·scanner·should·end·with·a·special |
| 160 | <code·class="inline">end_of_input</code>·tuple·which·the·parser·is·looking·for.·The·format·of·this·tuple | 160 | <code·class="inline">end_of_input</code>·tuple·which·the·parser·is·looking·for.·The·format·of·this·tuple |
| 161 | should·be·<code·class="inline">{Endsymbol,·EndPosition}</code>,·where·<code·class="inline">Endsymbol</code>·is·an·identifier·that·is | 161 | should·be·<code·class="inline">{Endsymbol,·EndPosition}</code>,·where·<code·class="inline">Endsymbol</code>·is·an·identifier·that·is |
| 162 | distinguished·from·all·the·terminal·and·non-terminal·categories·of·the·syntax | 162 | distinguished·from·all·the·terminal·and·non-terminal·categories·of·the·syntax |
| 163 | rules.·The·<code·class="inline">Endsymbol</code>·can·be·declared·in·the·grammar·file.</p><p>The·simplest·case·is·to·segment·the·input·string·into·a·list·of·identifiers | 163 | rules.·The·<code·class="inline">Endsymbol</code>·can·be·declared·in·the·grammar·file.</p><p>The·simplest·case·is·to·segment·the·input·string·into·a·list·of·identifiers |
| 164 | (atoms)·and·use·those·atoms·both·as·categories·and·values·of·the·tokens.·For | 164 | (atoms)·and·use·those·atoms·both·as·categories·and·values·of·the·tokens.·For |
| 165 | example,·the·input·string·<code·class="inline">aaa·bbb·777,·X</code>·may·be·scanned·(tokenized)·as:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 165 | example,·the·input·string·<code·class="inline">aaa·bbb·777,·X</code>·may·be·scanned·(tokenized)·as:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="6665628238-1">[</span><span·class="p"·data-group-id="6665628238-2">{</span><span·class="ss">aaa</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">1</span><span·class="p"·data-group-id="6665628238-2">}</span><span·class="p">,</span><spa[·...·truncated·by·diffoscope;·len:·1016,·SHA:·2a2c32f3b8be37396ce0b19d4ed2a39b1ac150763c0819d19b5618ed5c431b95·...·]-6">}</span><span·class="p">,</span><span·class="w"> |
| 166 | ·</span><span·class="p"·data-group-id=" | 166 | ·</span><span·class="p"·data-group-id="6665628238-7">{</span><span·class="ss">'$end'</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">1</span><span·class="p"·data-group-id="6665628238-7">}</span><span·class="p"·data-group-id="6665628238-1">]</span><span·class="p">.</span></code></pre><p>This·assumes·that·this·is·the·first·line·of·the·input·text,·and·that·<code·class="inline">'$end'</code>·is |
| 167 | the·distinguished·<code·class="inline">end_of_input</code>·symbol.</p><p>The·Erlang·scanner·in·the·<code·class="inline">io</code>·module·can·be·used·as·a·starting·point·when | 167 | the·distinguished·<code·class="inline">end_of_input</code>·symbol.</p><p>The·Erlang·scanner·in·the·<code·class="inline">io</code>·module·can·be·used·as·a·starting·point·when |
| 168 | writing·a·new·scanner.·Study·<code·class="inline">yeccscan.erl</code>·in·order·to·see·how·a·filter·can·be | 168 | writing·a·new·scanner.·Study·<code·class="inline">yeccscan.erl</code>·in·order·to·see·how·a·filter·can·be |
| 169 | added·on·top·of·<a·href="../../../../lib/stdlib-7.0/doc/html/io.html#scan_erl_form/3"><code·class="inline">io:scan_erl_form/3</code></a>·to·provide·a·scanner·for·Yecc·that | 169 | added·on·top·of·<a·href="../../../../lib/stdlib-7.0/doc/html/io.html#scan_erl_form/3"><code·class="inline">io:scan_erl_form/3</code></a>·to·provide·a·scanner·for·Yecc·that |
| 170 | tokenizes·grammar·files·before·parsing·them·with·the·Yecc·parser.·A·more·general | 170 | tokenizes·grammar·files·before·parsing·them·with·the·Yecc·parser.·A·more·general |
| 171 | approach·to·scanner·implementation·is·to·use·a·scanner·generator·such·as | 171 | approach·to·scanner·implementation·is·to·use·a·scanner·generator·such·as |
| 172 | <a·href="leex.html"><code·class="inline">leex</code></a>.</p><h2·id="module-grammar-definition-format"·class="section-heading"> | 172 | <a·href="leex.html"><code·class="inline">leex</code></a>.</p><h2·id="module-grammar-definition-format"·class="section-heading"> |
| 173 | ··<a·href="#module-grammar-definition-format"·class="hover-link"> | 173 | ··<a·href="#module-grammar-definition-format"·class="hover-link"> |
| Offset 229, 29 lines modified | Offset 229, 29 lines modified | ||
| 229 | list·->·'('·')'. | 229 | list·->·'('·')'. |
| 230 | list·->·'('·elements·')'. | 230 | list·->·'('·elements·')'. |
| 231 | elements·->·element. | 231 | elements·->·element. |
| 232 | elements·->·element·elements. | 232 | elements·->·element·elements. |
| 233 | element·->·atom. | 233 | element·->·atom. |
| 234 | element·->·list.</code></pre><p>This·grammar·can·be·used·to·generate·a·parser·which·parses·list·expressions, | 234 | element·->·list.</code></pre><p>This·grammar·can·be·used·to·generate·a·parser·which·parses·list·expressions, |
| 235 | such·as·<code·class="inline">(),·(a),·(peter·charles),·(a·(b·c)·d·(())),·...</code>·provided·that·your | 235 | such·as·<code·class="inline">(),·(a),·(peter·charles),·(a·(b·c)·d·(())),·...</code>·provided·that·your |
| 236 | scanner·tokenizes,·for·example,·the·input·<code·class="inline">(peter·charles)</code>·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 236 | scanner·tokenizes,·for·example,·the·input·<code·class="inline">(peter·charles)</code>·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="1521255450-1">[</span><span·class="p"·data-group-id="1521255450-2">{</span><span·class="ss">'('</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">1</span><span·class="p"·data-group-id="1521255450-2">}</span><span·class="w">·</s[·...·truncated·by·diffoscope;·len:·920,·SHA:·d52d2b3a41eebc073981d9a1bcf4174224cd9b6fefddb295c212ea7ad1c92f20·...·]-5">}</span><span·class="p">,</span><span·class="w"> |
| 237 | ·</span><span·class="p"·data-group-id=" | 237 | ·</span><span·class="p"·data-group-id="1521255450-6">{</span><span·class="ss">'$end'</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">1</span><span·class="p"·data-group-id="1521255450-6">}</span><span·class="p"·data-group-id="1521255450-1">]</span></code></pre><p>When·a·grammar·rule·is·used·by·the·parser·to·parse·(part·of)·the·input·string·as |
| 238 | a·grammatical·phrase,·the·associated·code·is·evaluated,·and·the·value·of·the | 238 | a·grammatical·phrase,·the·associated·code·is·evaluated,·and·the·value·of·the |
| 239 | last·expression·becomes·the·value·of·the·parsed·phrase.·This·value·may·be·used | 239 | last·expression·becomes·the·value·of·the·parsed·phrase.·This·value·may·be·used |
| 240 | by·the·parser·later·to·build·structures·that·are·values·of·higher·phrases·of | 240 | by·the·parser·later·to·build·structures·that·are·values·of·higher·phrases·of |
| 241 | which·the·current·phrase·is·a·part.·The·values·initially·associated·with | 241 | which·the·current·phrase·is·a·part.·The·values·initially·associated·with |
| 242 | terminal·category·phrases,·i.e.·input·tokens,·are·the·token·tuples·themselves.</p><p>Below·is·an·example·of·the·grammar·above·with·structure·building·code·added:</p><pre><code·class="text">list·->·'('·')'·:·nil. | 242 | terminal·category·phrases,·i.e.·input·tokens,·are·the·token·tuples·themselves.</p><p>Below·is·an·example·of·the·grammar·above·with·structure·building·code·added:</p><pre><code·class="text">list·->·'('·')'·:·nil. |
| 243 | list·->·'('·elements·')'·:·'$2'. | 243 | list·->·'('·elements·')'·:·'$2'. |
| 244 | elements·->·element·:·{cons,·'$1',·nil}. | 244 | elements·->·element·:·{cons,·'$1',·nil}. |
| 245 | elements·->·element·elements·:·{cons,·'$1',·'$2'}. | 245 | elements·->·element·elements·:·{cons,·'$1',·'$2'}. |
| 246 | element·->·atom·:·'$1'. | 246 | element·->·atom·:·'$1'. |
| 247 | element·->·list·:·'$1'.</code></pre><p>With·this·code·added·to·the·grammar·rules,·the·parser·produces·the·following | 247 | element·->·list·:·'$1'.</code></pre><p>With·this·code·added·to·the·grammar·rules,·the·parser·produces·the·following |
| 248 | value·(structure)·when·parsing·the·input·string·<code·class="inline">(a·b·c).</code>.·This·still·assumes | 248 | value·(structure)·when·parsing·the·input·string·<code·class="inline">(a·b·c).</code>.·This·still·assumes |
| 249 | that·this·was·the·first·input·line·that·the·scanner·tokenized:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 249 | that·this·was·the·first·input·line·that·the·scanner·tokenized:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="8181170387-1">{</span><span·class="ss">cons</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8181170387-2">{</span><span·class="ss">atom</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">1</span><spa[·...·truncated·by·diffoscope;·len:·567,·SHA:·a91f18f36f29e19266e623f077c26ec1061a32a1ec90db584760577135645dea·...·]-4">}</span><span·class="p">,</span><span·class="w"> |
| 250 | ····························</span><span·class="p"·data-group-id=" | 250 | ····························</span><span·class="p"·data-group-id="8181170387-5">{</span><span·class="ss">cons</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8181170387-6">{</span><span·class="ss">atom</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">1</span><spa[·...·truncated·by·diffoscope;·len:·344,·SHA:·b8081827af978f795e6501d11cb4f37aec0bb82f7bcdb488759f52cffc84f5aa·...·]-1">}</span></code></pre><p>The·associated·code·contains·<code·class="inline">pseudo·variables</code>·<code·class="inline">'$1'</code>,·<code·class="inline">'$2'</code>, |
| 251 | <code·class="inline">'$3'</code>,·and·so·on.··which·refer·to·(are·bound·to)·the·values | 251 | <code·class="inline">'$3'</code>,·and·so·on.··which·refer·to·(are·bound·to)·the·values |
| 252 | associated·previously·by·the·parser·with·the·symbols·of·the·right-hand | 252 | associated·previously·by·the·parser·with·the·symbols·of·the·right-hand |
| 253 | side·of·the·rule.·When·these·symbols·are·terminal·categories,·the | 253 | side·of·the·rule.·When·these·symbols·are·terminal·categories,·the |
| 254 | values·are·token·tuples·of·the·input·string·(see·above).</p><p>The·associated·code·may·not·only·be·used·to·build·structures | 254 | values·are·token·tuples·of·the·input·string·(see·above).</p><p>The·associated·code·may·not·only·be·used·to·build·structures |
| 255 | associated·with·phrases,·but·may·also·be·used·for·syntactic·and | 255 | associated·with·phrases,·but·may·also·be·used·for·syntactic·and |
| 256 | semantic·tests,·printout·actions·(for·example·for·tracing),·and·so·on | 256 | semantic·tests,·printout·actions·(for·example·for·tracing),·and·so·on |
| 257 | during·the·parsing·process.·Since·tokens·contain·positional·(line | 257 | during·the·parsing·process.·Since·tokens·contain·positional·(line |
| Offset 266, 37 lines modified | Offset 266, 37 lines modified | ||
| 266 | element·->·atom·:·'$1'. | 266 | element·->·atom·:·'$1'. |
| 267 | element·->·list·:·'$1'.</code></pre><h2·id="module-generating-a-parser"·class="section-heading"> | 267 | element·->·list·:·'$1'.</code></pre><h2·id="module-generating-a-parser"·class="section-heading"> |
| 268 | ··<a·href="#module-generating-a-parser"·class="hover-link"> | 268 | ··<a·href="#module-generating-a-parser"·class="hover-link"> |
| 269 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 269 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 270 | ··</a> | 270 | ··</a> |
| 271 | ··<span·class="text">Generating·a·Parser</span> | 271 | ··<span·class="text">Generating·a·Parser</span> |
| 272 | </h2> | 272 | </h2> |
| 273 | <p>To·call·the·parser·generator,·use·the·following·command:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">yecc</span><span·class="p">:</span><span·class="nf">file</span><span·class="p"·data-group-id=" | 273 | <p>To·call·the·parser·generator,·use·the·following·command:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">yecc</span><span·class="p">:</span><span·class="nf">file</span><span·class="p"·data-group-id="9994659857-1">(</span><span·class="n">Grammarfile</span><span·class="p"·data-group-id="9994659857-1">)</span><span·class="p">.</span></code></pre><p>An·error·message·from·Yecc·will·be·shown·if·the·grammar·is·not·of·the·LALR·type |
| 274 | (for·example·too·ambiguous).·Shift/reduce·conflicts·are·resolved·in·favor·of | 274 | (for·example·too·ambiguous).·Shift/reduce·conflicts·are·resolved·in·favor·of |
| 275 | shifting·if·there·are·no·operator·precedence·declarations.·Refer·to·the·<code·class="inline">yacc</code> | 275 | shifting·if·there·are·no·operator·precedence·declarations.·Refer·to·the·<code·class="inline">yacc</code> |
| 276 | documentation·on·the·use·of·operator·precedence.</p><p>The·output·file·contains·Erlang·source·code·for·a·parser·module·with·module·name | 276 | documentation·on·the·use·of·operator·precedence.</p><p>The·output·file·contains·Erlang·source·code·for·a·parser·module·with·module·name |
| 277 | equal·to·the·<code·class="inline">Parserfile</code>·parameter.·After·compilation,·the·parser·can·be·called | 277 | equal·to·the·<code·class="inline">Parserfile</code>·parameter.·After·compilation,·the·parser·can·be·called |
| 278 | as·follows·(the·module·name·is·assumed·to·be·<code·class="inline">myparser</code>):</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">myparser</span><span·class="p">:</span><span·class="nf">parse</span><span·class="p"·data-group-id=" | 278 | as·follows·(the·module·name·is·assumed·to·be·<code·class="inline">myparser</code>):</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">myparser</span><span·class="p">:</span><span·class="nf">parse</span><span·class="p"·data-group-id="5951788898-1">(</span><span·class="nc">myscanner</span><span·class="p">:</span><span·class="nf">scan</span><span·class="p"·data-group-id="5951788898-2">(</span><span·class="n">Inport</span><span·class="p"·data-group-id="5951788898-2">)</span><span·class="p[·...·truncated·by·diffoscope;·len:·27,·SHA:·e821d3e190468137c5fec9e8729d2521c601a9b8cfe9787971284c71dc55832c·...·]-1">)</span></code></pre><p>The·call·format·can·be·different·if·a·customized·prologue·file·has·been·included |
| 279 | when·generating·the·parser·instead·of·the·default·file | 279 | when·generating·the·parser·instead·of·the·default·file |
| 280 | <code·class="inline">lib/parsetools/include/yeccpre.hrl</code>.</p><p>With·the·standard·prologue,·this·call·will·return·either·<code·class="inline">{ok,·Result}</code>,·where | 280 | <code·class="inline">lib/parsetools/include/yeccpre.hrl</code>.</p><p>With·the·standard·prologue,·this·call·will·return·either·<code·class="inline">{ok,·Result}</code>,·where |
| 281 | <code·class="inline">Result</code>·is·a·structure·that·the·Erlang·code·of·the·grammar·file·has·built,·or | 281 | <code·class="inline">Result</code>·is·a·structure·that·the·Erlang·code·of·the·grammar·file·has·built,·or |
| 282 | <code·class="inline">{error,·{Position,·Module,·Message}}</code>·if·there·was·a·syntax·error·in·the·input.</p><p><code·class="inline">Message</code>·is·something·which·may·be·converted·into·a·string·by·calling | 282 | <code·class="inline">{error,·{Position,·Module,·Message}}</code>·if·there·was·a·syntax·error·in·the·input.</p><p><code·class="inline">Message</code>·is·something·which·may·be·converted·into·a·string·by·calling |
| 283 | <code·class="inline">Module:format_error(Message)</code>·and·printed·with·<a·href="../../../../lib/stdlib-7.0/doc/html/io.html#format/3"><code·class="inline">io:format/3</code></a>.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>By·default,·the·parser·that·was·generated·will·not·print·out·error·messages·to | 283 | <code·class="inline">Module:format_error(Message)</code>·and·printed·with·<a·href="../../../../lib/stdlib-7.0/doc/html/io.html#format/3"><code·class="inline">io:format/3</code></a>.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>By·default,·the·parser·that·was·generated·will·not·print·out·error·messages·to |
| 284 | the·screen.·The·user·will·have·to·do·this·either·by·printing·the·returned | 284 | the·screen.·The·user·will·have·to·do·this·either·by·printing·the·returned |
| 285 | error·messages,·or·by·inserting·tests·and·print·instructions·in·the·Erlang | 285 | error·messages,·or·by·inserting·tests·and·print·instructions·in·the·Erlang |
| 286 | code·associated·with·the·syntax·rules·of·the·grammar·file.</p></section><p>It·is·also·possible·to·make·the·parser·ask·for·more·input·tokens·when·needed·if | 286 | code·associated·with·the·syntax·rules·of·the·grammar·file.</p></section><p>It·is·also·possible·to·make·the·parser·ask·for·more·input·tokens·when·needed·if |
| 287 | the·following·call·format·is·used:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">myparser</span><span·class="p">:</span><span·class="nf">parse_and_scan</span><span·class="p"·data-group-id=" | 287 | the·following·call·format·is·used:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">myparser</span><span·class="p">:</span><span·class="nf">parse_and_scan</span><span·class="p"·data-group-id="5939619427-1">(</span><span·class="p"·data-group-id="5939619427-2">{</span><span·class="n">Function</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Args</span><span·class="p"·data-group-id="5939619427-2">}</span><span·class="p"·data-g[·...·truncated·by·diffoscope;·len:·19,·SHA:·983851a83603721bd23c97105b6054ed72093b5769a4e9b3d6fc3f02ff3540c7·...·]-1">)</span><span·class="w"> |
| 288 | </span><span·class="nc">myparser</span><span·class="p">:</span><span·class="nf">parse_and_scan</span><span·class="p"·data-group-id=" | 288 | </span><span·class="nc">myparser</span><span·class="p">:</span><span·class="nf">parse_and_scan</span><span·class="p"·data-group-id="5939619427-3">(</span><span·class="p"·data-group-id="5939619427-4">{</span><span·class="n">Mod</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Tokenizer</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Args</span>[·...·truncated·by·diffoscope;·len:·94,·SHA:·90e019ca2bb8fadf10bc935e082292bb7bf0e8c715f9761969a0318c9d1050cb·...·]-3">)</span></code></pre><p>The·tokenizer·<code·class="inline">Function</code>·is·either·a·fun·or·a·tuple·<code·class="inline">{Mod,·Tokenizer}</code>.·The·call |
| 289 | <a·href="../../../../erts-16.0/doc/html/erlang.html#apply/2"><code·class="inline">apply(Function,·Args)</code></a>·or | 289 | <a·href="../../../../erts-16.0/doc/html/erlang.html#apply/2"><code·class="inline">apply(Function,·Args)</code></a>·or |
| 290 | <a·href="../../../../erts-16.0/doc/html/erlang.html#apply/2"><code·class="inline">apply({Mod,·Tokenizer},·Args)</code></a>·is·executed·whenever·a·new·token·is | 290 | <a·href="../../../../erts-16.0/doc/html/erlang.html#apply/2"><code·class="inline">apply({Mod,·Tokenizer},·Args)</code></a>·is·executed·whenever·a·new·token·is |
| 291 | needed.·This,·for·example,·makes·it·possible·to·parse·from·a·file,·token·by | 291 | needed.·This,·for·example,·makes·it·possible·to·parse·from·a·file,·token·by |
| 292 | token.</p><p>The·tokenizer·used·above·has·to·be·implemented·so·as·to·return·one·of·the | 292 | token.</p><p>The·tokenizer·used·above·has·to·be·implemented·so·as·to·return·one·of·the |
| 293 | following:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 293 | following:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="4091036172-1">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Tokens</span><span·class="p">,</span><span·class="w">·</span><span·class="n">EndPosition</span><span·class="p"·data-group-id="4091036172-1">}</span><span·class="w"> |
| 294 | </span><span·class="p"·data-group-id=" | 294 | </span><span·class="p"·data-group-id="4091036172-2">{</span><span·class="ss">eof</span><span·class="p">,</span><span·class="w">·</span><span·class="n">EndPosition</span><span·class="p"·data-group-id="4091036172-2">}</span><span·class="w"> |
| 295 | </span><span·class="p"·data-group-id=" | 295 | </span><span·class="p"·data-group-id="4091036172-3">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Error_description</span><span·class="p">,</span><span·class="w">·</span><span·class="n">EndPosition</span><span·class="p"·data-group-id="4091[·...·truncated·by·diffoscope;·len:·6,·SHA:·4b275e44f9f9b2f5736831d980e2b32849a6dda158ec7179c516121140a1338a·...·]-3">}</span></code></pre><p>This·conforms·to·the·format·used·by·the·scanner·in·the·Erlang·<code·class="inline">io</code>·library |
| 296 | module.</p><p>If·<code·class="inline">{eof,·EndPosition}</code>·is·returned·immediately,·the·call·to·<code·class="inline">parse_and_scan/1</code> | 296 | module.</p><p>If·<code·class="inline">{eof,·EndPosition}</code>·is·returned·immediately,·the·call·to·<code·class="inline">parse_and_scan/1</code> |
| 297 | returns·<code·class="inline">{ok,·eof}</code>.·If·<code·class="inline">{eof,·EndPosition}</code>·is·returned·before·the·parser | 297 | returns·<code·class="inline">{ok,·eof}</code>.·If·<code·class="inline">{eof,·EndPosition}</code>·is·returned·before·the·parser |
| 298 | expects·end·of·input,·<code·class="inline">parse_and_scan/1</code>·will,·of·course,·return·an·error | 298 | expects·end·of·input,·<code·class="inline">parse_and_scan/1</code>·will,·of·course,·return·an·error |
| 299 | message·(see·above).·Otherwise·<code·class="inline">{ok,·Result}</code>·is·returned.</p><h2·id="module-more-examples"·class="section-heading"> | 299 | message·(see·above).·Otherwise·<code·class="inline">{ok,·Result}</code>·is·returned.</p><h2·id="module-more-examples"·class="section-heading"> |
| 300 | ··<a·href="#module-more-examples"·class="hover-link"> | 300 | ··<a·href="#module-more-examples"·class="hover-link"> |
| 301 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 301 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 302 | ··</a> | 302 | ··</a> |
| Offset 338, 44 lines modified | Offset 338, 44 lines modified | ||
| 338 | </span><span·class="n">Terminals</span><span·class="w"> | 338 | </span><span·class="n">Terminals</span><span·class="w"> |
| 339 | </span><span·class="ss">atom</span><span·class="w">·</span><span·class="nb">float</span><span·class="w">·</span><span·class="ss">integer</span><span·class="w">·</span><span·class="ss">reserved_symbol</span><span·class="w">·</span><span·class="ss">reserved_word</span><span·class="w">·</span><span·class="ss">string</span><span·class="w">·</span><span·class="ss">char</span><span·class="w">·</span><span·class="ss">var</span><span·class="w"> | 339 | </span><span·class="ss">atom</span><span·class="w">·</span><span·class="nb">float</span><span·class="w">·</span><span·class="ss">integer</span><span·class="w">·</span><span·class="ss">reserved_symbol</span><span·class="w">·</span><span·class="ss">reserved_word</span><span·class="w">·</span><span·class="ss">string</span><span·class="w">·</span><span·class="ss">char</span><span·class="w">·</span><span·class="ss">var</span><span·class="w"> |
| 340 | </span><span·class="ss">'->'</span><span·class="w">·</span><span·class="ss">':'</span><span·class="w">·</span><span·class="ss">dot</span><span·class="p">.</span><span·class="w"> | 340 | </span><span·class="ss">'->'</span><span·class="w">·</span><span·class="ss">':'</span><span·class="w">·</span><span·class="ss">dot</span><span·class="p">.</span><span·class="w"> |
| 341 | </span><span·class="n">Rootsymbol</span><span·class="w">·</span><span·class="ss">grammar</span><span·class="p">.</span><span·class="w"> | 341 | </span><span·class="n">Rootsymbol</span><span·class="w">·</span><span·class="ss">grammar</span><span·class="p">.</span><span·class="w"> |
| 342 | </span><span·class="n">Endsymbol</span><span·class="w">·</span><span·class="ss">'$end'</span><span·class="p">.</span><span·class="w"> | 342 | </span><span·class="n">Endsymbol</span><span·class="w">·</span><span·class="ss">'$end'</span><span·class="p">.</span><span·class="w"> |
| 343 | </span><span·class="ss">grammar</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">declaration</span><span·class="w">·</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">'$1'</span><span·class="p">.</span><span·class="w"> | 343 | </span><span·class="ss">grammar</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">declaration</span><span·class="w">·</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">'$1'</span><span·class="p">.</span><span·class="w"> |
| 344 | </span><span·class="ss">grammar</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">rule</span><span·class="w">·</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">'$1'</span><span·class="p">.</span><span·class="w"> | 344 | </span><span·class="ss">grammar</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">rule</span><span·class="w">·</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">'$1'</span><span·class="p">.</span><span·class="w"> |
| 345 | </span><span·class="ss">declaration</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">symbol</span><span·class="w">·</span><span·class="ss">symbols</span><span·class="w">·</span><span·class="nc">dot</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id=" | 345 | </span><span·class="ss">declaration</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">symbol</span><span·class="w">·</span><span·class="ss">symbols</span><span·class="w">·</span><span·class="nc">dot</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id="7813371734-1">{</span><span·class="ss">'$1'</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">'$2'</span><span·class="p"·data-group-id="7813371734-1">}</span><span·class="p">.</span><span·class="w"> |
| 346 | </span><span·class="ss">rule</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">head</span><span·class="w">·</span><span·class="ss">'->'</span><span·class="w">·</span><span·class="ss">symbols</span><span·class="w">·</span><span·class="ss">attached_code</span><span·class="w">·</span><span·class="nc">dot</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id=" | 346 | </span><span·class="ss">rule</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">head</span><span·class="w">·</span><span·class="ss">'->'</span><span·class="w">·</span><span·class="ss">symbols</span><span·class="w">·</span><span·class="ss">attached_code</span><span·class="w">·</span><span·class="nc">dot</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id="7813371734-2">{</span><span·class="ss">rule</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="7813371734-3">[</span><span·class="ss">'$1'</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</sp[·...·truncated·by·diffoscope;·len:·80,·SHA:·c59c0290045be73f3047c6141882a97ce26b29b220c4afb8acc7c51bdb668de8·...·]-3">]</span><span·class="p">,</span><span·class="w"> |
| 347 | ········</span><span·class="ss">'$4'</span><span·class="p"·data-group-id=" | 347 | ········</span><span·class="ss">'$4'</span><span·class="p"·data-group-id="7813371734-2">}</span><span·class="p">.</span><span·class="w"> |
| 348 | </span><span·class="ss">head</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">symbol</span><span·class="w">·</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">'$1'</span><span·class="p">.</span><span·class="w"> | 348 | </span><span·class="ss">head</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">symbol</span><span·class="w">·</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">'$1'</span><span·class="p">.</span><span·class="w"> |
| 349 | </span><span·class="ss">symbols</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">symbol</span><span·class="w">·</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id=" | 349 | </span><span·class="ss">symbols</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">symbol</span><span·class="w">·</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id="7813371734-4">[</span><span·class="ss">'$1'</span><span·class="p"·data-group-id="7813371734-4">]</span><span·class="p">.</span><span·class="w"> |
| 350 | </span><span·class="ss">symbols</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">symbol</span><span·class="w">·</span><span·class="ss">symbols</span><span·class="w">·</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id=" | 350 | </span><span·class="ss">symbols</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">symbol</span><span·class="w">·</span><span·class="ss">symbols</span><span·class="w">·</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id="7813371734-5">[</span><span·class="ss">'$1'</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">'$2'</span><span·class="p"·data-group-id="7813371734-5">]</span><span·class="p">.</span><span·class="w"> |
| 351 | </span><span·class="ss">attached_code</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">':'</span><span·class="w">·</span><span·class="ss">tokens</span><span·class="w">·</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id=" | 351 | </span><span·class="ss">attached_code</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">':'</span><span·class="w">·</span><span·class="ss">tokens</span><span·class="w">·</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id="7813371734-6">{</span><span·class="ss">erlang_code</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">'$2'</span><span·class="p"·data-group-id="7813371734-6">}</span><span·class="p">.</span><span·class="w"> |
| 352 | </span><span·class="ss">attached_code</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">'$empty'</span><span·class="w">·</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id=" | 352 | </span><span·class="ss">attached_code</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">'$empty'</span><span·class="w">·</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id="7813371734-7">{</span><span·class="ss">erlang_code</span><span·class="p">,</span><span·class="w"> |
| 353 | ·················</span><span·class="p"·data-group-id=" | 353 | ·················</span><span·class="p"·data-group-id="7813371734-8">[</span><span·class="p"·data-group-id="7813371734-9">{</span><span·class="ss">atom</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">0</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">'$undefined[·...·truncated·by·diffoscope;·len:·159,·SHA:·3ce6ea6721b86a2177472716bc586dbf8e63b16195433816608f737bef4bd9c8·...·]-7">}</span><span·class="p">.</span><span·class="w"> |
| 354 | </span><span·class="ss">tokens</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">token</span><span·class="w">·</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id=" | 354 | </span><span·class="ss">tokens</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">token</span><span·class="w">·</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id="7813371734-10">[</span><span·class="ss">'$1'</span><span·class="p"·data-group-id="7813371734-10">]</span><span·class="p">.</span><span·class="w"> |
| 355 | </span><span·class="ss">tokens</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">token</span><span·class="w">·</span><span·class="ss">tokens</span><span·class="w">·</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id=" | 355 | </span><span·class="ss">tokens</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">token</span><span·class="w">·</span><span·class="ss">tokens</span><span·class="w">·</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id="7813371734-11">[</span><span·class="ss">'$1'</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">'$2'</span><span·class="p"·data-group-id="7813371734-11">]</span><span·class="p">.</span><span·class="w"> |
| 356 | </span><span·class="ss">symbol</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">var</span><span·class="w">·</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">value_of</span><span·class="p"·data-group-id=" | 356 | </span><span·class="ss">symbol</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">var</span><span·class="w">·</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">value_of</span><span·class="p"·data-group-id="7813371734-12">(</span><span·class="ss">'$1'</span><span·class="p"·data-group-id="7813371734-12">)</span><span·class="p">.</span><span·class="w"> |
| 357 | </span><span·class="ss">symbol</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">atom</span><span·class="w">·</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">value_of</span><span·class="p"·data-group-id=" | 357 | </span><span·class="ss">symbol</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">atom</span><span·class="w">·</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">value_of</span><span·class="p"·data-group-id="7813371734-13">(</span><span·class="ss">'$1'</span><span·class="p"·data-group-id="7813371734-13">)</span><span·class="p">.</span><span·class="w"> |
| 358 | </span><span·class="ss">symbol</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">integer</span><span·class="w">·</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">value_of</span><span·class="p"·data-group-id=" | 358 | </span><span·class="ss">symbol</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">integer</span><span·class="w">·</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">value_of</span><span·class="p"·data-group-id="7813371734-14">(</span><span·class="ss">'$1'</span><span·class="p"·data-group-id="7813371734-14">)</span><span·class="p">.</span><span·class="w"> |
| 359 | </span><span·class="ss">symbol</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">reserved_word</span><span·class="w">·</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">value_of</span><span·class="p"·data-group-id=" | 359 | </span><span·class="ss">symbol</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">reserved_word</span><span·class="w">·</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">value_of</span><span·class="p"·data-group-id="7813371734-15">(</span><span·class="ss">'$1'</span><span·class="p"·data-group-id="7813371734-15">)</span><span·class="p">.</span><span·class="w"> |
| 360 | </span><span·class="ss">token</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">var</span><span·class="w">·</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">'$1'</span><span·class="p">.</span><span·class="w"> | 360 | </span><span·class="ss">token</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">var</span><span·class="w">·</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">'$1'</span><span·class="p">.</span><span·class="w"> |
| 361 | </span><span·class="ss">token</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">atom</span><span·class="w">·</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">'$1'</span><span·class="p">.</span><span·class="w"> | 361 | </span><span·class="ss">token</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">atom</span><span·class="w">·</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">'$1'</span><span·class="p">.</span><span·class="w"> |
| 362 | </span><span·class="ss">token</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="nb">float</span><span·class="w">·</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">'$1'</span><span·class="p">.</span><span·class="w"> | 362 | </span><span·class="ss">token</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="nb">float</span><span·class="w">·</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">'$1'</span><span·class="p">.</span><span·class="w"> |
| 363 | </span><span·class="ss">token</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">integer</span><span·class="w">·</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">'$1'</span><span·class="p">.</span><span·class="w"> | 363 | </span><span·class="ss">token</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">integer</span><span·class="w">·</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">'$1'</span><span·class="p">.</span><span·class="w"> |
| 364 | </span><span·class="ss">token</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">string</span><span·class="w">·</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">'$1'</span><span·class="p">.</span><span·class="w"> | 364 | </span><span·class="ss">token</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">string</span><span·class="w">·</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">'$1'</span><span·class="p">.</span><span·class="w"> |
| 365 | </span><span·class="ss">token</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">char</span><span·class="w">·</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">'$1'</span><span·class="p">.</span><span·class="w"> | 365 | </span><span·class="ss">token</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">char</span><span·class="w">·</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">'$1'</span><span·class="p">.</span><span·class="w"> |
| 366 | </span><span·class="ss">token</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">reserved_symbol</span><span·class="w">·</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id=" | 366 | </span><span·class="ss">token</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">reserved_symbol</span><span·class="w">·</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id="7813371734-16">{</span><span·class="nf">value_of</span><span·class="p"·data-group-id="7813371734-17">(</span><span·class="ss">'$1'</span><span·class="p"·data-group-id="7813371734-17">)</span><span·class="p">,</span><span·class="w">·</span><span·cla[·...·truncated·by·diffoscope;·len:·207,·SHA:·1472250d690d8b8f2803ef19de62977860aea8e1d490b0fc0953d1867c31e0a2·...·]-16">}</span><span·class="p">.</span><span·class="w"> |
| 367 | </span><span·class="ss">token</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">reserved_word</span><span·class="w">·</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id=" | 367 | </span><span·class="ss">token</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">reserved_word</span><span·class="w">·</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id="7813371734-19">{</span><span·class="nf">value_of</span><span·class="p"·data-group-id="7813371734-20">(</span><span·class="ss">'$1'</span><span·class="p"·data-group-id="7813371734-20">)</span><span·class="p">,</span><span·class="w">·</span><span·cla[·...·truncated·by·diffoscope;·len:·207,·SHA:·3e42fddaccbe5790298773ff871aec432c9e1db6cc59ca4ca485a5603d9285a0·...·]-19">}</span><span·class="p">.</span><span·class="w"> |
| 368 | </span><span·class="ss">token</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">'->'</span><span·class="w">·</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id=" | 368 | </span><span·class="ss">token</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">'->'</span><span·class="w">·</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id="7813371734-22">{</span><span·class="ss">'->'</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">line_of</span><span·class="p"·data-group-id="7813371734-23">(</span><span·class="ss">'$1'</span><span·class="p"·data-grou[·...·truncated·by·diffoscope;·len:·70,·SHA:·456b91c4d7178100e9a81c462219a4418175043905637247d74cb4ea458340f9·...·]-22">}</span><span·class="p">.</span><span·class="w"> |
| 369 | </span><span·class="ss">token</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">':'</span><span·class="w">·</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id=" | 369 | </span><span·class="ss">token</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">':'</span><span·class="w">·</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id="7813371734-24">{</span><span·class="ss">':'</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">line_of</span><span·class="p"·data-group-id="7813371734-25">(</span><span·class="ss">'$1'</span><span·class="p"·data-group-id[·...·truncated·by·diffoscope;·len:·66,·SHA:·b82e015803568709ac261369fef4f71900c6eb3c894de3bcdcd34343e786888c·...·]-24">}</span><span·class="p">.</span><span·class="w"> |
| 370 | </span><span·class="n">Erlang</span><span·class="w">·</span><span·class="ss">code</span><span·class="p">.</span><span·class="w"> | 370 | </span><span·class="n">Erlang</span><span·class="w">·</span><span·class="ss">code</span><span·class="p">.</span><span·class="w"> |
| 371 | </span><span·class="nf">value_of</span><span·class="p"·data-group-id=" | 371 | </span><span·class="nf">value_of</span><span·class="p"·data-group-id="7813371734-26">(</span><span·class="n">Token</span><span·class="p"·data-group-id="7813371734-26">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 372 | ····</span><span·class="nf">element</span><span·class="p"·data-group-id=" | 372 | ····</span><span·class="nf">element</span><span·class="p"·data-group-id="7813371734-27">(</span><span·class="mi">3</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Token</span><span·class="p"·data-group-id="7813371734-27">)</span><span·class="p">.</span><span·class="w"> |
| 373 | </span><span·class="nf">line_of</span><span·class="p"·data-group-id=" | 373 | </span><span·class="nf">line_of</span><span·class="p"·data-group-id="7813371734-28">(</span><span·class="n">Token</span><span·class="p"·data-group-id="7813371734-28">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 374 | ····</span><span·class="nf">element</span><span·class="p"·data-group-id=" | 374 | ····</span><span·class="nf">element</span><span·class="p"·data-group-id="7813371734-29">(</span><span·class="mi">2</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Token</span><span·class="p"·data-group-id="7813371734-29">)</span><span·class="p">.</span></code></pre><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>The·symbols·<code·class="inline">'->'</code>,·and·<code·class="inline">':'</code>·have·to·be·treated·in·a·special·way,·as·they·are |
| 375 | meta·symbols·of·the·grammar·notation,·as·well·as·terminal·symbols·of·the·Yecc | 375 | meta·symbols·of·the·grammar·notation,·as·well·as·terminal·symbols·of·the·Yecc |
| 376 | grammar.</p></section><p>5.·The·file·<code·class="inline">erl_parse.yrl</code>·in·the·<code·class="inline">lib/stdlib/src</code>·directory·contains·the | 376 | grammar.</p></section><p>5.·The·file·<code·class="inline">erl_parse.yrl</code>·in·the·<code·class="inline">lib/stdlib/src</code>·directory·contains·the |
| 377 | grammar·for·Erlang.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>Syntactic·tests·are·used·in·the·code·associated·with·some·rules,·and·an·error | 377 | grammar·for·Erlang.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>Syntactic·tests·are·used·in·the·code·associated·with·some·rules,·and·an·error |
| 378 | is·thrown·(and·caught·by·the·generated·parser·to·produce·an·error·message) | 378 | is·thrown·(and·caught·by·the·generated·parser·to·produce·an·error·message) |
| 379 | when·a·test·fails.·The·same·effect·can·be·achieved·with·a·call·to | 379 | when·a·test·fails.·The·same·effect·can·be·achieved·with·a·call·to |
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| 143 | ······<p·class="built-using"> | 143 | ······<p·class="built-using"> |
| 144 | ········Built·using | 144 | ········Built·using |
| 145 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 145 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 146 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 146 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 147 | ······</p> | 147 | ······</p> |
| 148 | <p>Copyright·©·1996-202 | 148 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 149 | ····</footer> | 149 | ····</footer> |
| 150 | ··</div> | 150 | ··</div> |
| 151 | </main> | 151 | </main> |
| 152 | </div> | 152 | </div> |
| 153 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 153 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 154 | ··<script> | 154 | ··<script> |
| 155 | ··let·initialized·=·false; | 155 | ··let·initialized·=·false; |
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| 181 | ······<p·class="built-using"> | 181 | ······<p·class="built-using"> |
| 182 | ········Built·using | 182 | ········Built·using |
| 183 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 183 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 184 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 184 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 185 | ······</p> | 185 | ······</p> |
| 186 | <p>Copyright·©·1996-202 | 186 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 187 | ····</footer> | 187 | ····</footer> |
| 188 | ··</div> | 188 | ··</div> |
| 189 | </main> | 189 | </main> |
| 190 | </div> | 190 | </div> |
| 191 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 191 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 192 | ··<script> | 192 | ··<script> |
| 193 | ··let·initialized·=·false; | 193 | ··let·initialized·=·false; |
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| 1499 | ······<p·class="built-using"> | 1499 | ······<p·class="built-using"> |
| 1500 | ········Built·using | 1500 | ········Built·using |
| 1501 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1501 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1502 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1502 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1503 | ······</p> | 1503 | ······</p> |
| 1504 | <p>Copyright·©·1996-202 | 1504 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1505 | ····</footer> | 1505 | ····</footer> |
| 1506 | ··</div> | 1506 | ··</div> |
| 1507 | </main> | 1507 | </main> |
| 1508 | </div> | 1508 | </div> |
| 1509 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1509 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1510 | ··<script> | 1510 | ··<script> |
| 1511 | ··let·initialized·=·false; | 1511 | ··let·initialized·=·false; |
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| 1 | Zip·archive·data,·made·by·v6.1·UNIX,·extract·using·at·least·v1.0,·last·modified·Ju | 1 | Zip·archive·data,·made·by·v6.1·UNIX,·extract·using·at·least·v1.0,·last·modified·Jul·05·2026·23:54:06,·uncompressed·size·20,·method=store |
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| 2642 | certificates·include·policies·the·constrained·policy·set·with | 2642 | certificates·include·policies·the·constrained·policy·set·with |
| 2643 | potential·qualifiers·will·be·returned,·these·values·are·derived·from | 2643 | potential·qualifiers·will·be·returned,·these·values·are·derived·from |
| 2644 | the·policy·tree·created·as·part·of·the·path·validation·algorithm.·The | 2644 | the·policy·tree·created·as·part·of·the·path·validation·algorithm.·The |
| 2645 | constrained·set·can·be·constrained·only·by·the·Certificate·Authorities | 2645 | constrained·set·can·be·constrained·only·by·the·Certificate·Authorities |
| 2646 | or·also·by·the·user·when·the·option·<code·class="inline">policy_set</code>·is·provided·to·this | 2646 | or·also·by·the·user·when·the·option·<code·class="inline">policy_set</code>·is·provided·to·this |
| 2647 | function.·The·qualifiers·convey·information·about·the·valid·policy·and | 2647 | function.·The·qualifiers·convey·information·about·the·valid·policy·and |
| 2648 | is·intended·as·information·to·end·users.</p><p>Available·options:</p><ul><li><p><strong>{verify_fun,·{fun(),·UserState::term()}</strong>·-·The·fun·must·be | 2648 | is·intended·as·information·to·end·users.</p><p>Available·options:</p><ul><li><p><strong>{verify_fun,·{fun(),·UserState::term()}</strong>·-·The·fun·must·be |
| 2649 | defined·as:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">fun</span><span·class="p"·data-group-id="10 | 2649 | defined·as:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">fun</span><span·class="p"·data-group-id="1022298514-1">(</span><span·class="n">OtpCert</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">'OTPCertificate'</span><span·class="p"·data-group-id="1022298[·...·truncated·by·diffoscope;·len:·55,·SHA:·da6d1f74859f922cd46a7af2608975bea1d3fb04b2d8e38ce28a99034a7e1863·...·]4-2">}</span><span·class="p">,</span><span·class="w"> |
| 2650 | ····</span><span·class="n">Event</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id="10 | 2650 | ····</span><span·class="n">Event</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id="1022298514-3">{</span><span·class="ss">bad_cert</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Reason</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">bad_cert_reaso[·...·truncated·by·diffoscope;·len:·545,·SHA:·e5ecbf0552701bb0fa1f851ba5fefd6d3e75a8440c7441c0b8d83567734b134c·...·]4-3">}</span><span·class="w">·</span><span·class="p">|</span><span·class="w"> |
| 2651 | ·············</span><span·class="p"·data-group-id="10 | 2651 | ·············</span><span·class="p"·data-group-id="1022298514-7">{</span><span·class="ss">extension</span><span·class="p">,</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">'Extension'</span><span·class="p"·data-group-id="1022298514-8">{</span><span·class="p"·data-group-id="1022[·...·truncated·by·diffoscope;·len:·58,·SHA:·780f6cd355b1be424d7675198ec819e6c7b277906a210a01110736104715eb64·...·]4-7">}</span><span·class="p">,</span><span·class="w"> |
| 2652 | ····</span><span·class="n">UserState</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">term</span><span·class="p"·data-group-id="10 | 2652 | ····</span><span·class="n">UserState</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">term</span><span·class="p"·data-group-id="1022298514-9">(</span><span·class="p"·data-group-id="1022298514-9">)</span><span·class="p"·data-group-id="1022298514-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 2653 | ··</span><span·class="p"·data-group-id="10 | 2653 | ··</span><span·class="p"·data-group-id="1022298514-10">{</span><span·class="ss">valid</span><span·class="p">,</span><span·class="w">·</span><span·class="n">UserState</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">term</span><s[·...·truncated·by·diffoscope;·len:·146,·SHA:·79726d1dc3e981f0173ee28410561995637421d02f9ea72535fc6d7cd3e04fe6·...·]4-10">}</span><span·class="w">·</span><span·class="p">|</span><span·class="w"> |
| 2654 | ··</span><span·class="p"·data-group-id="10 | 2654 | ··</span><span·class="p"·data-group-id="1022298514-12">{</span><span·class="ss">valid_peer</span><span·class="p">,</span><span·class="w">·</span><span·class="n">UserState</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">term</sp[·...·truncated·by·diffoscope;·len:·151,·SHA:·823cc63c7c99d354285a8e1c12ef133db44d474380b2bd2cba584f5d8d6d36d8·...·]4-12">}</span><span·class="w">·</span><span·class="p">|</span><span·class="w"> |
| 2655 | ··</span><span·class="p"·data-group-id="10 | 2655 | ··</span><span·class="p"·data-group-id="1022298514-14">{</span><span·class="ss">fail</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Reason</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">term</span><span·[·...·truncated·by·diffoscope;·len:·142,·SHA:·a32db8443167b820451eb42e5a6f8f872d5afd3b3e1a517ace92b98f6c56aef9·...·]4-14">}</span><span·class="w">·</span><span·class="p">|</span><span·class="w"> |
| 2656 | ··</span><span·class="p"·data-group-id="10 | 2656 | ··</span><span·class="p"·data-group-id="1022298514-16">{</span><span·class="ss">unknown</span><span·class="p">,</span><span·class="w">·</span><span·class="n">UserState</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">term</span>[·...·truncated·by·diffoscope;·len:·632,·SHA:·46496815406ecbafa5c5a346cab8e6711d579e6710e232da7ade0a55b83d16c5·...·]-2">}</span><span·class="p">,</span><span·class="w"> |
| 2657 | ····</span><span·class="n">DerCert</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">der_encoded</span><span·class="p"·data-group-id=" | 2657 | ····</span><span·class="n">DerCert</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">der_encoded</span><span·class="p"·data-group-id="0132854773-3">(</span><span·class="p"·data-group-id="0132854773-3">)</span><span·class="p">,</span><span·class="w"> |
| 2658 | ····</span><span·class="n">Event</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id=" | 2658 | ····</span><span·class="n">Event</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id="0132854773-4">{</span><span·class="ss">bad_cert</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Reason</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">bad_cert_rea[·...·truncated·by·diffoscope;·len:·548,·SHA:·9349c5aef19e1e730ae1cd9ce4fe3b9f68b3b3c7983fbfa5ca43375317496649·...·]-4">}</span><span·class="w">·</span><span·class="p">|</span><span·class="w"> |
| 2659 | ·············</span><span·class="p"·data-group-id=" | 2659 | ·············</span><span·class="p"·data-group-id="0132854773-8">{</span><span·class="ss">extension</span><span·class="p">,</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">'Extension'</span><span·class="p"·data-group-id="0132854773-9">{</span><span·class="p"·data-group-id="01[·...·truncated·by·diffoscope;·len:·61,·SHA:·1e8bdb0bffa843bee1e5f7420f5bdd7b53ffa155245e9243abd6aa4a10032453·...·]-8">}</span><span·class="p">,</span><span·class="w"> |
| 2660 | ····</span><span·class="n">UserState</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">term</span><span·class="p"·data-group-id=" | 2660 | ····</span><span·class="n">UserState</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">term</span><span·class="p"·data-group-id="0132854773-10">(</span><span·class="p"·data-group-id="0132854773-10">)</span><span·class="p"·data-group-id="0132854773-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 2661 | ··</span><span·class="p"·data-group-id=" | 2661 | ··</span><span·class="p"·data-group-id="0132854773-11">{</span><span·class="ss">valid</span><span·class="p">,</span><span·class="w">·</span><span·class="n">UserState</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">term</span>[·...·truncated·by·diffoscope;·len:·149,·SHA:·974a923890f6576bf97ef11ffa7e8d94542b37936c76b862ee993bbae4942368·...·]-11">}</span><span·class="w">·</span><span·class="p">|</span><span·class="w"> |
| 2662 | ··</span><span·class="p"·data-group-id=" | 2662 | ··</span><span·class="p"·data-group-id="0132854773-13">{</span><span·class="ss">valid_peer</span><span·class="p">,</span><span·class="w">·</span><span·class="n">UserState</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">term</[·...·truncated·by·diffoscope;·len:·154,·SHA:·f61051a7cbdfe5d0770d0b4917f6be4f28c380ce9e02895af484ed6da1d02aaa·...·]-13">}</span><span·class="w">·</span><span·class="p">|</span><span·class="w"> |
| 2663 | ··</span><span·class="p"·data-group-id=" | 2663 | ··</span><span·class="p"·data-group-id="0132854773-15">{</span><span·class="ss">fail</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Reason</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">term</span><spa[·...·truncated·by·diffoscope;·len:·145,·SHA:·20ef61ed8a898d1ec109e1b911662d360048a6df1e93438fa8db41a87a7575ff·...·]-15">}</span><span·class="w">·</span><span·class="p">|</span><span·class="w"> |
| 2664 | ··</span><span·class="p"·data-group-id=" | 2664 | ··</span><span·class="p"·data-group-id="0132854773-17">{</span><span·class="ss">unknown</span><span·class="p">,</span><span·class="w">·</span><span·class="n">UserState</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">term</spa[·...·truncated·by·diffoscope;·len:·151,·SHA:·0ef11ed2f238d6afed1b8a6b1ef4804814a00a813479b64e5b67599075036a31·...·]-17">}</span><span·class="p">.</span></code></pre><p>The·verify·callback·can·have·3·or·4·arguments·in·case·the·DER·encoded |
| 2665 | version·is·needed·by·the·callback.</p><p>If·the·verify·callback·fun·returns·<code·class="inline">{fail,·Reason}</code>,·the·verification·process | 2665 | version·is·needed·by·the·callback.</p><p>If·the·verify·callback·fun·returns·<code·class="inline">{fail,·Reason}</code>,·the·verification·process |
| 2666 | is·immediately·stopped.·If·the·verify·callback·fun·returns | 2666 | is·immediately·stopped.·If·the·verify·callback·fun·returns |
| 2667 | <code·class="inline">{valid,·UserState}</code>,·the·verification·process·is·continued.·This·can·be·used | 2667 | <code·class="inline">{valid,·UserState}</code>,·the·verification·process·is·continued.·This·can·be·used |
| 2668 | to·accept·specific·path·validation·errors,·such·as·<code·class="inline">selfsigned_peer</code>,·as·well | 2668 | to·accept·specific·path·validation·errors,·such·as·<code·class="inline">selfsigned_peer</code>,·as·well |
| 2669 | as·verifying·application-specific·extensions.·If·called·with·an·extension | 2669 | as·verifying·application-specific·extensions.·If·called·with·an·extension |
| 2670 | unknown·to·the·user·application,·the·return·value·<code·class="inline">{unknown,·UserState}</code>·is·to | 2670 | unknown·to·the·user·application,·the·return·value·<code·class="inline">{unknown,·UserState}</code>·is·to |
| 2671 | be·used.</p><blockquote><h4·class="note">Note</h4><p>If·you·need·the·DER·encoded·version·of·the·certificate·and·have | 2671 | be·used.</p><blockquote><h4·class="note">Note</h4><p>If·you·need·the·DER·encoded·version·of·the·certificate·and·have |
| Offset 2821, 17 lines modified | Offset 2821, 17 lines modified | ||
| 2821 | certificate·is·in·agreement·with·at·least·one·of·the·<em>Reference·Identifier</em>·that | 2821 | certificate·is·in·agreement·with·at·least·one·of·the·<em>Reference·Identifier</em>·that |
| 2822 | the·client·expects·to·be·connected·to.</p><p>The·function·is·intended·to·be·added·as·an·extra·client·check·of·the | 2822 | the·client·expects·to·be·connected·to.</p><p>The·function·is·intended·to·be·added·as·an·extra·client·check·of·the |
| 2823 | peer·certificate·when·performing | 2823 | peer·certificate·when·performing |
| 2824 | <a·href="#pkix_path_validation/3">public_key:pkix_path_validation/3</a></p><p>See·<a·href="https://tools.ietf.org/html/rfc6125">RFC·6125</a>·for·detailed·information | 2824 | <a·href="#pkix_path_validation/3">public_key:pkix_path_validation/3</a></p><p>See·<a·href="https://tools.ietf.org/html/rfc6125">RFC·6125</a>·for·detailed·information |
| 2825 | about·hostname·verification.·The | 2825 | about·hostname·verification.·The |
| 2826 | <a·href="using_public_key.html#verify_hostname">User's·Guide</a>·and | 2826 | <a·href="using_public_key.html#verify_hostname">User's·Guide</a>·and |
| 2827 | <a·href="using_public_key.html#verify_hostname_examples">code·examples</a>·describes·this | 2827 | <a·href="using_public_key.html#verify_hostname_examples">code·examples</a>·describes·this |
| 2828 | function·more·detailed.</p><p>The·option·funs·are·described·here:</p><ul><li><p><strong><code·class="inline">match_fun</code></strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">fun</span><span·class="p"·data-group-id="7288097168-1">(</span><span·class="n">ReferenceId</span><span·class="p">:</span><span·class="p">:</span><span·class="n">ReferenceId</span><span·class="p"·data-group-id="7288097168-2">(</span><span·class="p"·data-group-id="7288097168-2">)</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="n">FQDN</span><span·class="p">:</span><span·class="p">:</span><span·class="nf">string</span><span·class="p"·data-group-id="7288097168-3">(</span><span·class="p"·data-group-id="7288097168-3">)</span><span·class="p">,</span><span·class="w"> | ||
| 2829 | 2828 | function·more·detailed.</p><p>The·option·funs·are·described·here:</p><ul><li><p><strong><code·class="inline">match_fun</code></strong></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">fun</span><span·class="p"·data-group-id="1261712130-1[·...·truncated·by·diffoscope;·len:·532,·SHA:·cba0a7ad98b91b616bd859bb5b4bf92fc777a061165ae37f012073f3bd340e42·...·]</span><span·class="w"> | |
| 2829 | ····</span><span·class="n">PresentedId</span><span·class="p">:</span><span·class="p">:</span><span·class="p"·data-group-id="1261712130-4">{</span><span·class="ss">dNSName</span><span·class="p">,</span><span·class="nf">string</span><span·class="p"·data-group-id="1261712130-5">(</span><span·class="p"·data-group-id="1261712130-5">)</span><span·class="p"·data-group-id="1261712130-4">}</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id="1261712130-6">{</span><span·class="ss">uniformResourceIdentifier</span><span·class="p">,</span><span·class="nf">string</span><span·class="p"·data-group-id="1261712130-7">(</span><span·class="p"·data-group-id="1261712130-7">)</span><span·class="w">·</span><span·class="p">|</span><span·class="w"> | ||
| 2830 | ·················</span><span·class="p"·data-group-id=" | 2830 | ·················</span><span·class="p"·data-group-id="1261712130-8">{</span><span·class="ss">iPAddress</span><span·class="p">,</span><span·class="nf">list</span><span·class="p"·data-group-id="1261712130-9">(</span><span·class="nf">byte</span><span·class="p"·data-group-id="1261712130-10">(</span><span·class="p[·...·truncated·by·diffoscope;·len:·953,·SHA:·1ec36e38fc20edbdea72227ffafa833a98c991c498896240ec501642b740dba6·...·]-1">)</span></code></pre><p>This·function·replaces·the·default·host·name·matching·rules.·The·fun·should |
| 2831 | return·a·boolean·to·tell·if·the·Reference·ID·and·Presented·ID·matches·or·not. | 2831 | return·a·boolean·to·tell·if·the·Reference·ID·and·Presented·ID·matches·or·not. |
| 2832 | The·match·fun·can·also·return·a·third·value,·value,·the·atom·<code·class="inline">default</code>,·if·the | 2832 | The·match·fun·can·also·return·a·third·value,·value,·the·atom·<code·class="inline">default</code>,·if·the |
| 2833 | default·matching·rules·shall·apply.·This·makes·it·possible·to·augment·the | 2833 | default·matching·rules·shall·apply.·This·makes·it·possible·to·augment·the |
| 2834 | tests·with·a·special·case:</p><pre><code·class="text">fun(....)·->·true;···%·My·special·case | 2834 | tests·with·a·special·case:</p><pre><code·class="text">fun(....)·->·true;···%·My·special·case |
| 2835 | ···(_,·_)·->·default·%·all·others·falls·back·to·the·inherit·tests | 2835 | ···(_,·_)·->·default·%·all·others·falls·back·to·the·inherit·tests |
| 2836 | end</code></pre><p>See·<a·href="#pkix_verify_hostname_match_fun/1"><code·class="inline">pkix_verify_hostname_match_fun/1</code></a>·for·a·function·that·takes·a·protocol | 2836 | end</code></pre><p>See·<a·href="#pkix_verify_hostname_match_fun/1"><code·class="inline">pkix_verify_hostname_match_fun/1</code></a>·for·a·function·that·takes·a·protocol |
| 2837 | name·as·argument·and·returns·a·<code·class="inline">fun/2</code>·suitable·for·this·option·and | 2837 | name·as·argument·and·returns·a·<code·class="inline">fun/2</code>·suitable·for·this·option·and |
| Offset 3015, 22 lines modified | Offset 3015, 22 lines modified | ||
| 3015 | ····································revocation_status_undetermined·| | 3015 | ····································revocation_status_undetermined·| |
| 3016 | ····································{revocation_status_undetermined,·Reason·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>()}·| | 3016 | ····································{revocation_status_undetermined,·Reason·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>()}·| |
| 3017 | ····································{revoked,·<a·href="#t:crl_reason/0">crl_reason</a>()}.</pre> | 3017 | ····································{revoked,·<a·href="#t:crl_reason/0">crl_reason</a>()}.</pre> |
| 3018 | ······</div> | 3018 | ······</div> |
| 3019 | <p>Performs·CRL·validation.·It·is·intended·to·be·called·from·the·verify·fun·of | 3019 | <p>Performs·CRL·validation.·It·is·intended·to·be·called·from·the·verify·fun·of |
| 3020 | <a·href="#pkix_path_validation/3">pkix_path_validation/3·</a>.</p><p>Available·options:</p><ul><li><p><strong>{update_crl,·fun()}</strong>·-·The·fun·has·the·following·type·specification:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id=" | 3020 | <a·href="#pkix_path_validation/3">pkix_path_validation/3·</a>.</p><p>Available·options:</p><ul><li><p><strong>{update_crl,·fun()}</strong>·-·The·fun·has·the·following·type·specification:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id="0764086051-1">(</span><span·class="o">#</span><span·class="ss">'DistributionPoint'</span><span·class="p"·data-group-id="0764086051-2">{</span><span·class="p"·data-group-id="0764086051-2">}</span><span·class="p">,</span><span·class="w">·</span><span[·...·truncated·by·diffoscope;·len:·215,·SHA:·f0db94aacc0e2a4695701dddf5457bc763537a83054f2c46064e6b5e7f4192d2·...·]-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 3021 | ········</span><span·class="o">#</span><span·class="ss">'CertificateList'</span><span·class="p"·data-group-id=" | 3021 | ········</span><span·class="o">#</span><span·class="ss">'CertificateList'</span><span·class="p"·data-group-id="0764086051-4">{</span><span·class="p"·data-group-id="0764086051-4">}</span></code></pre><p>The·fun·uses·the·information·in·the·distribution·point·to·access·the·latest |
| 3022 | possible·version·of·the·CRL.·If·this·fun·is·not·specified,·Public·Key·uses·the | 3022 | possible·version·of·the·CRL.·If·this·fun·is·not·specified,·Public·Key·uses·the |
| 3023 | default·implementation:</p><pre><code·class="text">·fun(_DP,·CRL)·->·CRL·end</code></pre></li><li><p><strong>{issuer_fun,·{fun(),·UserState::term()}}</strong>·-·The·fun·has·the·following·type | 3023 | default·implementation:</p><pre><code·class="text">·fun(_DP,·CRL)·->·CRL·end</code></pre></li><li><p><strong>{issuer_fun,·{fun(),·UserState::term()}}</strong>·-·The·fun·has·the·following·type |
| 3024 | specification:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">fun</span><span·class="p"·data-group-id=" | 3024 | specification:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">fun</span><span·class="p"·data-group-id="4490603325-1">(</span><span·class="o">#</span><span·class="ss">'DistributionPoint'</span><span·class="p"·data-group-id="4490603325-2">{</span><span·class="p"·data-group-id="4490603325-2">}</span><span·class="p">,</span><span·class="w">·</span><span[·...·truncated·by·diffoscope;·len:·162,·SHA:·8cfc62983caa56667356518bfdd8adfad61e75bc137e873af1a07f916aad3a03·...·]-3">}</span><span·class="p">,</span><span·class="w"> |
| 3025 | ····</span><span·class="p"·data-group-id="3316867701-4">{</span><span·class="ss">rdnSequence</span><span·class="p">,</span><span·class="p"·data-group-id="3316867701-5">[</span><span·class="o">#</span><span·class="ss">'AttributeTypeAndValue'</span><span·class="p"·data-group-id="3316867701-6">{</span><span·class="p"·data-group-id="3316867701-6">}</span><span·class="p"·data-group-id="3316867701-5">]</span><span·class="p"·data-group-id="3316867701-4">}</span><span·class="p">,</span><span·class="w">·</span><span·class="n">UserState</span><span·class="p">:</span><span·class="p">:</span><span·class="nf">term</span><span·class="p"·data-group-id="3316867701-7">(</span><span·class="p"·data-group-id="3316867701-7">)</span><span·class="p"·data-group-id="3316867701-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | ||
| 3026 | ··</span><span·class="p"·data-group-id=" | 3025 | ····</span><span·class="p"·data-group-id="4490603325-4">{</span><span·class="ss">rdnSequence</span><span·class="p">,</span><span·class="p"·data-group-id="4490603325-5">[</span><span·class="o">#</span><span·class="ss">'AttributeTypeAndValue'</span><sp[·...·truncated·by·diffoscope;·len:·592,·SHA:·1babfc8e4ef027712896b7211e3f8000ddc64b6f09c77a768d8558cc4a32de0a·...·] |
| 3026 | ··</span><span·class="p"·data-group-id="4490603325-8">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">'OTPCertificate'</span><span·class="p"·data-group-id="4490603325-9">{</span><span·class="p"·data-group-id="4490603325-9">}</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4490603325-10">[</span><span·class="ss">der_encoded</span><span·class="p"·data-group-id="4490603325-10">]</span><span·class="p"·data-group-id="4490603325-8">}</span></code></pre><p>The·fun·returns·the·root·certificate·and·certificate·chain·that·has·signed·the | ||
| 3027 | CRL.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id=" | 3027 | CRL.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id="1749410543-1">(</span><span·class="n">DP</span><span·class="p">,</span><span·class="w">·</span><span·class="n">CRL</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Issuer</span><span·class="p">,</span><span·class="w">·</span><span·clas[·...·truncated·by·diffoscope;·len:·430,·SHA:·be887e20a539e11a4c6208ef0d0193a646d8bf9a9e0872e373bc4d19558f6501·...·]-2">}</span></code></pre></li><li><p><strong>{undetermined_details,·boolean()}</strong>·-·Defaults·to·false.·When·revocation |
| 3028 | status·cannot·be·determined,·and·this·option·is·set·to·true,·details·of·why·no | 3028 | status·cannot·be·determined,·and·this·option·is·set·to·true,·details·of·why·no |
| 3029 | CRLs·where·accepted·are·included·in·the·return·value.</p></li></ul> | 3029 | CRLs·where·accepted·are·included·in·the·return·value.</p></li></ul> |
| 3030 | ··</section> | 3030 | ··</section> |
| 3031 | </section> | 3031 | </section> |
| 3032 | <section·class="detail"·id="pkix_dist_point/1"> | 3032 | <section·class="detail"·id="pkix_dist_point/1"> |
| 3033 | ··<div·class="detail-header"> | 3033 | ··<div·class="detail-header"> |
| Offset 4167, 26 lines modified | Offset 4167, 26 lines modified | ||
| 4167 | certificate,·but·makes·the·certificate·useful·for·both·roles.</p><p>Explanation·of·the·options·used·to·customize·certificates·in·the·generated | 4167 | certificate,·but·makes·the·certificate·useful·for·both·roles.</p><p>Explanation·of·the·options·used·to·customize·certificates·in·the·generated |
| 4168 | chains:</p><ul><li><p><strong>{digest,·digest_type()}</strong>·-·Hash·algorithm·to·be·used·for·signing·the | 4168 | chains:</p><ul><li><p><strong>{digest,·digest_type()}</strong>·-·Hash·algorithm·to·be·used·for·signing·the |
| 4169 | certificate·together·with·the·key·option.·Defaults·to·sha·that·is·sha1.</p></li><li><p><strong>{key,··ec_params()|·{rsa,·Size:pos_integer(),·Prime::pos_integer()}·|·private_key()}</strong>·-·Parameters·to·be·used·to·call | 4169 | certificate·together·with·the·key·option.·Defaults·to·sha·that·is·sha1.</p></li><li><p><strong>{key,··ec_params()|·{rsa,·Size:pos_integer(),·Prime::pos_integer()}·|·private_key()}</strong>·-·Parameters·to·be·used·to·call |
| 4170 | public_key:generate_key/1,·to·generate·a·key,·or·an·existing·key.·Defaults·to | 4170 | public_key:generate_key/1,·to·generate·a·key,·or·an·existing·key.·Defaults·to |
| 4171 | generating·an·ECDSA·key.·Note·this·could·fail·if·Erlang/OTP·is·compiled·with·a | 4171 | generating·an·ECDSA·key.·Note·this·could·fail·if·Erlang/OTP·is·compiled·with·a |
| 4172 | very·old·cryptolib.</p></li><li><p><strong>{validity,·{From::erlang:timestamp(),·To::erlang:timestamp()}}</strong>·-·The | 4172 | very·old·cryptolib.</p></li><li><p><strong>{validity,·{From::erlang:timestamp(),·To::erlang:timestamp()}}</strong>·-·The |
| 4173 | validity·period·of·the·certificate.</p></li><li><p><strong>{extensions,·[#'Extension'{}]}</strong>·-·Extensions·to·include·in·the | 4173 | validity·period·of·the·certificate.</p></li><li><p><strong>{extensions,·[#'Extension'{}]}</strong>·-·Extensions·to·include·in·the |
| 4174 | certificate.</p><p>Default·extensions·included·in·CA·certificates·if·not·otherwise·specified·are:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 4174 | certificate.</p><p>Default·extensions·included·in·CA·certificates·if·not·otherwise·specified·are:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="7435031027-1">[</span><span·class="o">#</span><span·class="ss">'Extension'</span><span·class="p"·data-group-id="7435031027-2">{</span><span·class="ss">extnID</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">?</span><span·class="ss">'id-ce-keyUsage'</span><span·class="p">,</span><span·class="w"> |
| 4175 | ··············</span><span·class="ss">extnValue</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 4175 | ··············</span><span·class="ss">extnValue</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="7435031027-3">[</span><span·class="ss">keyCertSign</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">cRLSign</span><span·class="p"·data-group-id="7435031027-3">]</span><span·class="p">,</span><span·class="w"> |
| 4176 | ··············</span><span·class="ss">critical</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">false</span><span·class="p"·data-group-id=" | 4176 | ··············</span><span·class="ss">critical</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">false</span><span·class="p"·data-group-id="7435031027-2">}</span><span·class="p">,</span><span·class="w"> |
| 4177 | </span><span·class="o">#</span><span·class="ss">'Extension'</span><span·class="p"·data-group-id=" | 4177 | </span><span·class="o">#</span><span·class="ss">'Extension'</span><span·class="p"·data-group-id="7435031027-4">{</span><span·class="ss">extnID</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">?</span><span·class="ss">'id-ce-basicConstraints'</span><span·class="p">,</span><span·class="w"> |
| 4178 | ·············</span><span·class="ss">extnValue</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">'BasicConstraints'</span><span·class="p"·data-group-id=" | 4178 | ·············</span><span·class="ss">extnValue</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">'BasicConstraints'</span><span·class="p"·data-group-id="7435031027-5">{</span><span·class="ss">cA</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">true</span><span·class="p"·data-group-id="7435031027-5">}</span><span·class="p">,</span><span·class="w"> |
| 4179 | ·············</span><span·class="ss">critical</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">true</span><span·class="p"·data-group-id=" | 4179 | ·············</span><span·class="ss">critical</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">true</span><span·class="p"·data-group-id="7435031027-4">}</span><span·class="p"·data-group-id="7435031027-1">]</span></code></pre><p>Default·extensions·included·in·the·server·peer·cert·if·not·otherwise·specified |
| 4180 | are:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 4180 | are:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="5311901345-1">[</span><span·class="o">#</span><span·class="ss">'Extension'</span><span·class="p"·data-group-id="5311901345-2">{</span><span·class="ss">extnID</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">?</span><span·class="ss">'id-ce-keyUsage'</span><span·class="p">,</span><span·class="w"> |
| 4181 | ··············</span><span·class="ss">extnValue</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 4181 | ··············</span><span·class="ss">extnValue</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="5311901345-3">[</span><span·class="ss">digitalSignature</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">keyAgreement</span><span·class="p"·data-group-id="5311901345-3">]</span><span·class="p">,</span><span·class="w"> |
| 4182 | ··············</span><span·class="ss">critical</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">false</span><span·class="p"·data-group-id=" | 4182 | ··············</span><span·class="ss">critical</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">false</span><span·class="p"·data-group-id="5311901345-2">}</span><span·class="p">,</span><span·class="w"> |
| 4183 | </span><span·class="o">#</span><span·class="ss">'Extension'</span><span·class="p"·data-group-id=" | 4183 | </span><span·class="o">#</span><span·class="ss">'Extension'</span><span·class="p"·data-group-id="5311901345-4">{</span><span·class="ss">extnID</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">?</span><span·class="ss">'id-ce-subjectAltName'</span><span·class="p">,</span><span·class="w"> |
| 4184 | ·············</span><span·class="ss">extnValue</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 4184 | ·············</span><span·class="ss">extnValue</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="5311901345-5">[</span><span·class="p"·data-group-id="5311901345-6">{</span><span·class="ss">dNSName</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Hostname</span><span·class="p"·data-group-id="5311901345-6">}</span><span·class="p"·da[·...·truncated·by·diffoscope;·len:·23,·SHA:·0c8f1bd7405752fd102e1ec7095e8376a5e39cafc7feef132460a8b7f598327d·...·]-5">]</span><span·class="p">,</span><span·class="w"> |
| 4185 | ·············</span><span·class="ss">critical</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">false</span><span·class="p"·data-group-id=" | 4185 | ·············</span><span·class="ss">critical</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">false</span><span·class="p"·data-group-id="5311901345-4">}</span><span·class="p"·data-group-id="5311901345-1">]</span></code></pre><p>Hostname·is·the·result·of·calling·net_adm:localhost()·in·the·Erlang·node·where |
| 4186 | this·function·is·called.</p></li></ul><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>Note·that·the·generated·certificates·and·keys·does·not·provide·a·formally | 4186 | this·function·is·called.</p></li></ul><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>Note·that·the·generated·certificates·and·keys·does·not·provide·a·formally |
| 4187 | correct·PKIX-trust-chain·and·they·cannot·be·used·to·achieve·real·security. | 4187 | correct·PKIX-trust-chain·and·they·cannot·be·used·to·achieve·real·security. |
| 4188 | This·function·is·provided·for·testing·purposes·only.</p></section> | 4188 | This·function·is·provided·for·testing·purposes·only.</p></section> |
| 4189 | ··</section> | 4189 | ··</section> |
| 4190 | </section> | 4190 | </section> |
| 4191 | <section·class="detail"·id="pkix_test_root_cert/2"> | 4191 | <section·class="detail"·id="pkix_test_root_cert/2"> |
| Offset 4244, 15 lines modified | Offset 4244, 15 lines modified | ||
| 4244 | ······<p·class="built-using"> | 4244 | ······<p·class="built-using"> |
| 4245 | ········Built·using | 4245 | ········Built·using |
| 4246 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 4246 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 4247 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 4247 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 4248 | ······</p> | 4248 | ······</p> |
| 4249 | <p>Copyright·©·1996-202 | 4249 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 4250 | ····</footer> | 4250 | ····</footer> |
| 4251 | ··</div> | 4251 | ··</div> |
| 4252 | </main> | 4252 | </main> |
| 4253 | </div> | 4253 | </div> |
| 4254 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 4254 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 4255 | ··<script> | 4255 | ··<script> |
| 4256 | ··let·initialized·=·false; | 4256 | ··let·initialized·=·false; |
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| 221 | ······<p·class="built-using"> | 221 | ······<p·class="built-using"> |
| 222 | ········Built·using | 222 | ········Built·using |
| 223 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 223 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 224 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 224 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 225 | ······</p> | 225 | ······</p> |
| 226 | <p>Copyright·©·1996-202 | 226 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 227 | ····</footer> | 227 | ····</footer> |
| 228 | ··</div> | 228 | ··</div> |
| 229 | </main> | 229 | </main> |
| 230 | </div> | 230 | </div> |
| 231 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 231 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 232 | ··<script> | 232 | ··<script> |
| 233 | ··let·initialized·=·false; | 233 | ··let·initialized·=·false; |
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| 125 | ····<span>Public-Key·Records</span> | 125 | ····<span>Public-Key·Records</span> |
| 126 | ··</h1> | 126 | ··</h1> |
| 127 | <p>This·chapter·briefly·describes·Erlang·records·derived·from·ASN.1·specifications | 127 | <p>This·chapter·briefly·describes·Erlang·records·derived·from·ASN.1·specifications |
| 128 | used·to·handle·public·key·infrastructure.·The·scope·is·to·describe·the·data | 128 | used·to·handle·public·key·infrastructure.·The·scope·is·to·describe·the·data |
| 129 | types·of·each·component,·not·the·semantics.·For·information·on·the·semantics, | 129 | types·of·each·component,·not·the·semantics.·For·information·on·the·semantics, |
| 130 | refer·to·the·relevant·standards·and·RFCs·linked·in·the·sections·below.</p><p>Use·the·following·include·directive·to·get·access·to·the·records·and·constant | 130 | refer·to·the·relevant·standards·and·RFCs·linked·in·the·sections·below.</p><p>Use·the·following·include·directive·to·get·access·to·the·records·and·constant |
| 131 | macros·described·in·the·following·sections:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">·</span><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id="5 | 131 | macros·described·in·the·following·sections:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">·</span><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id="5141295055-1">(</span><span·class="s">"public_key/include/public_key.hrl"</span><span·class="p"·data-group-id="5141295055-1">)</span><span·class="p">.</span></code></pre><h2·id="data-types"·class="section-heading"> |
| 132 | ··<a·href="#data-types"·class="hover-link"> | 132 | ··<a·href="#data-types"·class="hover-link"> |
| 133 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 133 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 134 | ··</a> | 134 | ··</a> |
| 135 | ··<span·class="text">Data·Types</span> | 135 | ··<span·class="text">Data·Types</span> |
| 136 | </h2> | 136 | </h2> |
| 137 | <p>Common·non-standard·Erlang·data·types·used·to·describe·the·record·fields·in·the | 137 | <p>Common·non-standard·Erlang·data·types·used·to·describe·the·record·fields·in·the |
| 138 | following·sections·and·which·are·not·defined·in·the·Public·Key | 138 | following·sections·and·which·are·not·defined·in·the·Public·Key |
| 139 | <a·href="public_key.html">Reference·Manual</a>·follows·here:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">time</span><span·class="p"·data-group-id="3 | 139 | <a·href="public_key.html">Reference·Manual</a>·follows·here:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">time</span><span·class="p"·data-group-id="2738863069-1">(</span><span·class="p"·data-group-id="2738863069-1">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">utc_time</span><span·class="p"·data-group-id="2738863069-2">(</span><span·class="p"·data-gro[·...·truncated·by·diffoscope;·len:·231,·SHA:·7ced2f2e59ff15fa142ccf04edc3434d85fe828337c7d87ae77dd0e92a19f687·...·]-3">)</span><span·class="w"> |
| 140 | </span><span·class="nf">utc_time</span><span·class="p"·data-group-id="3 | 140 | </span><span·class="nf">utc_time</span><span·class="p"·data-group-id="2738863069-4">(</span><span·class="p"·data-group-id="2738863069-4">)</span><span·class="w">··</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="2738863069-5">{</span><span·class="ss">utcTime</span><span·class="p">,</span>[·...·truncated·by·diffoscope;·len:·113,·SHA:·973efa5dd18e1333d3a8b03e9beb611eb5278375ed5ba5709a53aab32c581d88·...·]-5">}</span><span·class="w"> |
| 141 | </span><span·class="nf">general_time</span><span·class="p"·data-group-id="3 | 141 | </span><span·class="nf">general_time</span><span·class="p"·data-group-id="2738863069-6">(</span><span·class="p"·data-group-id="2738863069-6">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="2738863069-7">{</span><span·class="ss">generalTime</span><span·class="p">,</sp[·...·truncated·by·diffoscope;·len:·118,·SHA:·c9e89a0e69ef3688f2f2b2221372a5f5c350717bf1f0942eef31731e597a8ce3·...·]-7">}</span><span·class="w"> |
| 142 | </span><span·class="nf">general_name</span><span·class="p"·data-group-id="3 | 142 | </span><span·class="nf">general_name</span><span·class="p"·data-group-id="2738863069-8">(</span><span·class="p"·data-group-id="2738863069-8">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="2738863069-9">{</span><span·class="ss">rfc822Name</span><span·class="p">,</spa[·...·truncated·by·diffoscope;·len:·205,·SHA:·0467b0d65e369240fd000a76c0bf88e766e62c6422018d964c73fe0966c31bad·...·]-9">}</span><span·class="w">·</span><span·class="p">|</span><span·class="w"> |
| 143 | ·················</span><span·class="p"·data-group-id="3 | 143 | ·················</span><span·class="p"·data-group-id="2738863069-11">{</span><span·class="ss">dNSName</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">string</span><span·class="p"·data-group-id="2738863069-12">(</span><span·class="p"·data-group-id="2738863069-12">)</span><span·class="p"·[·...·truncated·by·diffoscope;·len:·25,·SHA:·1a9bcbd8fb2b2c9a97a2149bae8e68b8634ad07faf4402a830539457822d796a·...·]-11">}</span><span·class="w">·</span><span·class="p">|</span><span·class="w"> |
| 144 | ·················</span><span·class="p"·data-group-id="3 | 144 | ·················</span><span·class="p"·data-group-id="2738863069-13">{</span><span·class="ss">x400Address</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">string</span><span·class="p"·data-group-id="2738863069-14">(</span><span·class="p"·data-group-id="2738863069-14">)</span><span·class="w">·</span><span·class="p">|</span><span·class="w"> |
| 145 | ·················</span><span·class="p"·data-group-id="3 | 145 | ·················</span><span·class="p"·data-group-id="2738863069-15">{</span><span·class="ss">directoryName</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2738863069-16">{</span><span·class="ss">rdnSequence</span><span·class="p">,</span><span·class="w">·</span><span·class[·...·truncated·by·diffoscope;·len:·379,·SHA:·b7faa53979457e11417f8ae21250d3e7711e001e0334d510987b6b13fb36f1d4·...·]-15">}</span><span·class="w">·</span><span·class="p">|</span><span·class="w"> |
| 146 | ·················</span><span·class="p"·data-group-id="3 | 146 | ·················</span><span·class="p"·data-group-id="2738863069-19">{</span><span·class="ss">ediPartyName</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">special_string</span><span·class="p"·data-group-id="2738863069-20">(</span><span·class="p"·data-group-id="2738863069-20">)</span><sp[·...·truncated·by·diffoscope;·len:·38,·SHA:·860eaabd1caab21dbcd2a8853b2a5b5ac5c047ee0bf7a15f46bd4ecbc35afb5a·...·]-19">}</span><span·class="w">·</span><span·class="p">|</span><span·class="w"> |
| 147 | ·················</span><span·class="p"·data-group-id="3 | 147 | ·················</span><span·class="p"·data-group-id="2738863069-21">{</span><span·class="ss">ediPartyName</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">special_string</span><span·class="p"·data-group-id="2738863069-22">(</span><span·class="p"·data-group-id="2738863069-22">)</span><sp[·...·truncated·by·diffoscope;·len:·232,·SHA:·bae049b19826d624a9133082339954dce251e9c67caccde7e5ee3ed1a7ac4bc2·...·]-21">}</span><span·class="w">·</span><span·class="p">|</span><span·class="w"> |
| 148 | ·················</span><span·class="p"·data-group-id="3 | 148 | ·················</span><span·class="p"·data-group-id="2738863069-24">{</span><span·class="ss">uniformResourceIdentifier</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">string</span><span·class="p"·data-group-id="2738863069-25">(</span><span·class="p"·data-group-id="2738863069-25">)</spa[·...·truncated·by·diffoscope;·len:·43,·SHA:·0e8817a6b5e438a40504101d873b8864467ab1f547233bbf439ef074d70c0a39·...·]-24">}</span><span·class="w">·</span><span·class="p">|</span><span·class="w"> |
| 149 | ·················</span><span·class="p"·data-group-id="3 | 149 | ·················</span><span·class="p"·data-group-id="2738863069-26">{</span><span·class="ss">iPAddress</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">string</span><span·class="p"·data-group-id="2738863069-27">(</span><span·class="p"·data-group-id="2738863069-27">)</span><span·class="p[·...·truncated·by·diffoscope;·len:·27,·SHA:·d3c7040974dea17cd18ffc9c5c5b402b5c4c29f28fff4d93c9d711cb15291908·...·]-26">}</span><span·class="w">·</span><span·class="p">|</span><span·class="w"> |
| 150 | ·················</span><span·class="p"·data-group-id="3 | 150 | ·················</span><span·class="p"·data-group-id="2738863069-28">{</span><span·class="ss">registeredId</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">oid</span><span·class="p"·data-group-id="2738863069-29">(</span><span·class="p"·data-group-id="2738863069-29">)</span><span·class="p[·...·truncated·by·diffoscope;·len:·27,·SHA:·d3c7040974dea17cd18ffc9c5c5b402b5c4c29f28fff4d93c9d711cb15291908·...·]-28">}</span><span·class="w">·</span><span·class="p">|</span><span·class="w"> |
| 151 | ·················</span><span·class="p"·data-group-id="3 | 151 | ·················</span><span·class="p"·data-group-id="2738863069-30">{</span><span·class="ss">otherName</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">term</span><span·class="p"·data-group-id="2738863069-31">(</span><span·class="p"·data-group-id="2738863069-31">)</span><span·class="p"·[·...·truncated·by·diffoscope;·len:·25,·SHA:·1a9bcbd8fb2b2c9a97a2149bae8e68b8634ad07faf4402a830539457822d796a·...·]-30">}</span><span·class="w"> |
| 152 | </span><span·class="nf">special_string</span><span·class="p"·data-group-id="3 | 152 | </span><span·class="nf">special_string</span><span·class="p"·data-group-id="2738863069-32">(</span><span·class="p"·data-group-id="2738863069-32">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="2738863069-33">{</span><span·class="ss">teletexString</span><span·class="p">[·...·truncated·by·diffoscope;·len:·211,·SHA:·e52320d74c2ab7645a341e2c771e71f7930a3fabf664783ed370b019d092daac·...·]-33">}</span><span·class="w">·</span><span·class="p">|</span><span·class="w"> |
| 153 | · | 153 | · |
| 154 | ···················</span><span·class="p"·data-group-id="3 | 154 | ···················</span><span·class="p"·data-group-id="2738863069-35">{</span><span·class="ss">printableString</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">string</span><span·class="p"·data-group-id="2738863069-36">(</span><span·class="p"·data-group-id="2738863069-36">)</span><span·cl[·...·truncated·by·diffoscope;·len:·33,·SHA:·978e60ed51133997520afb8cdcb66ef9b83690e5435d6df848ab7e84057f4580·...·]-35">}</span><span·class="w">·</span><span·class="p">|</span><span·class="w"> |
| 155 | ···················</span><span·class="p"·data-group-id="3 | 155 | ···················</span><span·class="p"·data-group-id="2738863069-37">{</span><span·class="ss">universalString</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">string</span><span·class="p"·data-group-id="2738863069-38">(</span><span·class="p"·data-group-id="2738863069-38">)</span><span·cl[·...·truncated·by·diffoscope;·len:·33,·SHA:·978e60ed51133997520afb8cdcb66ef9b83690e5435d6df848ab7e84057f4580·...·]-37">}</span><span·class="w">·</span><span·class="p">|</span><span·class="w"> |
| 156 | ···················</span><span·class="p"·data-group-id="3 | 156 | ···················</span><span·class="p"·data-group-id="2738863069-39">{</span><span·class="ss">utf8String</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">binary</span><span·class="p"·data-group-id="2738863069-40">(</span><span·class="p"·data-group-id="2738863069-40">)</span><span·class="[·...·truncated·by·diffoscope;·len:·28,·SHA:·bb660756036cd5594e1afa37a3281647672a210d33cfaff643d947b7d658262f·...·]-39">}</span><span·class="w">·</span><span·class="p">|</span><span·class="w"> |
| 157 | ···················</span><span·class="p"·data-group-id="3 | 157 | ···················</span><span·class="p"·data-group-id="2738863069-41">{</span><span·class="ss">bmpString</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">string</span><span·class="p"·data-group-id="2738863069-42">(</span><span·class="p"·data-group-id="2738863069-42">)</span><span·class="p[·...·truncated·by·diffoscope;·len:·27,·SHA:·d3c7040974dea17cd18ffc9c5c5b402b5c4c29f28fff4d93c9d711cb15291908·...·]-41">}</span><span·class="w"> |
| 158 | </span><span·class="nf">dist_reason</span><span·class="p"·data-group-id="3 | 158 | </span><span·class="nf">dist_reason</span><span·class="p"·data-group-id="2738863069-43">(</span><span·class="p"·data-group-id="2738863069-43">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">unused</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">keyCompromise</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">cACompromise</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">affiliationChanged</span><span·class="w">·</span><span·class="p">|</span><span·class="w"> |
| 159 | ················</span><span·class="ss">cessationOfOperation</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">certificateHold</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">privilegeWithdrawn</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">aACompromise</span><span·class="w"> | 159 | ················</span><span·class="ss">cessationOfOperation</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">certificateHold</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">privilegeWithdrawn</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">aACompromise</span><span·class="w"> |
| 160 | </span><span·class="n">OID_macro</span><span·class="p"·data-group-id="3 | 160 | </span><span·class="n">OID_macro</span><span·class="p"·data-group-id="2738863069-44">(</span><span·class="p"·data-group-id="2738863069-44">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">?</span><span·class="n">OID_name</span><span·class="p"·data-group-id="2738863069-45">(</spa[·...·truncated·by·diffoscope;·len:·43,·SHA:·0e8817a6b5e438a40504101d873b8864467ab1f547233bbf439ef074d70c0a39·...·]-45">)</span><span·class="w"> |
| 161 | </span><span·class="n">OID_name</span><span·class="p"·data-group-id="3 | 161 | </span><span·class="n">OID_name</span><span·class="p"·data-group-id="2738863069-46">(</span><span·class="p"·data-group-id="2738863069-46">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">atom</span><span·class="p"·data-group-id="2738863069-47">(</span><span·class="p"·data-grou[·...·truncated·by·diffoscope;·len:·16,·SHA:·5b8d2ec1899898aae61e19fa8aae0b540107ca17d16acff8e4b02fa404973d7f·...·]-47">)</span></code></pre><h2·id="rsa"·class="section-heading"> |
| 162 | ··<a·href="#rsa"·class="hover-link"> | 162 | ··<a·href="#rsa"·class="hover-link"> |
| 163 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 163 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 164 | ··</a> | 164 | ··</a> |
| 165 | ··<span·class="text">RSA</span> | 165 | ··<span·class="text">RSA</span> |
| 166 | </h2> | 166 | </h2> |
| 167 | <p>Erlang·representation·of | 167 | <p>Erlang·representation·of |
| 168 | <a·href="http://www.ietf.org/rfc/rfc3447.txt">Rivest-Shamir-Adleman·cryptosystem·(RSA)</a> | 168 | <a·href="http://www.ietf.org/rfc/rfc3447.txt">Rivest-Shamir-Adleman·cryptosystem·(RSA)</a> |
| 169 | keys·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="o">#</span><span·class="ss">'RSAPublicKey'</span><span·class="p"·data-group-id=" | 169 | keys·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="o">#</span><span·class="ss">'RSAPublicKey'</span><span·class="p"·data-group-id="4935813630-1">{</span><span·class="w"> |
| 170 | ···</span><span·class="ss">modulus</span><span·class="p">,</span><span·class="w">·······</span><span·class="c1">%·pos_integer()</span><span·class="w"> | 170 | ···</span><span·class="ss">modulus</span><span·class="p">,</span><span·class="w">·······</span><span·class="c1">%·pos_integer()</span><span·class="w"> |
| 171 | ···</span><span·class="ss">publicExponent</span><span·class="w">·</span><span·class="c1">%·pos_integer()</span><span·class="w"> | 171 | ···</span><span·class="ss">publicExponent</span><span·class="w">·</span><span·class="c1">%·pos_integer()</span><span·class="w"> |
| 172 | ··</span><span·class="p"·data-group-id=" | 172 | ··</span><span·class="p"·data-group-id="4935813630-1">}</span><span·class="p">.</span><span·class="w"> |
| 173 | </span><span·class="o">#</span><span·class="ss">'RSAPrivateKey'</span><span·class="p"·data-group-id=" | 173 | </span><span·class="o">#</span><span·class="ss">'RSAPrivateKey'</span><span·class="p"·data-group-id="4935813630-2">{</span><span·class="w"> |
| 174 | ···</span><span·class="ss">version</span><span·class="p">,</span><span·class="w">·········</span><span·class="c1">%·two-prime·|·multi</span><span·class="w"> | 174 | ···</span><span·class="ss">version</span><span·class="p">,</span><span·class="w">·········</span><span·class="c1">%·two-prime·|·multi</span><span·class="w"> |
| 175 | ···</span><span·class="ss">modulus</span><span·class="p">,</span><span·class="w">·········</span><span·class="c1">%·pos_integer()</span><span·class="w"> | 175 | ···</span><span·class="ss">modulus</span><span·class="p">,</span><span·class="w">·········</span><span·class="c1">%·pos_integer()</span><span·class="w"> |
| 176 | ···</span><span·class="ss">publicExponent</span><span·class="p">,</span><span·class="w">··</span><span·class="c1">%·pos_integer()</span><span·class="w"> | 176 | ···</span><span·class="ss">publicExponent</span><span·class="p">,</span><span·class="w">··</span><span·class="c1">%·pos_integer()</span><span·class="w"> |
| 177 | ···</span><span·class="ss">privateExponent</span><span·class="p">,</span><span·class="w">·</span><span·class="c1">%·pos_integer()</span><span·class="w"> | 177 | ···</span><span·class="ss">privateExponent</span><span·class="p">,</span><span·class="w">·</span><span·class="c1">%·pos_integer()</span><span·class="w"> |
| 178 | ···</span><span·class="ss">prime1</span><span·class="p">,</span><span·class="w">··········</span><span·class="c1">%·pos_integer()</span><span·class="w"> | 178 | ···</span><span·class="ss">prime1</span><span·class="p">,</span><span·class="w">··········</span><span·class="c1">%·pos_integer()</span><span·class="w"> |
| 179 | ···</span><span·class="ss">prime2</span><span·class="p">,</span><span·class="w">··········</span><span·class="c1">%·pos_integer()</span><span·class="w"> | 179 | ···</span><span·class="ss">prime2</span><span·class="p">,</span><span·class="w">··········</span><span·class="c1">%·pos_integer()</span><span·class="w"> |
| 180 | ···</span><span·class="ss">exponent1</span><span·class="p">,</span><span·class="w">·······</span><span·class="c1">%·pos_integer()</span><span·class="w"> | 180 | ···</span><span·class="ss">exponent1</span><span·class="p">,</span><span·class="w">·······</span><span·class="c1">%·pos_integer()</span><span·class="w"> |
| 181 | ···</span><span·class="ss">exponent2</span><span·class="p">,</span><span·class="w">·······</span><span·class="c1">%·pos_integer()</span><span·class="w"> | 181 | ···</span><span·class="ss">exponent2</span><span·class="p">,</span><span·class="w">·······</span><span·class="c1">%·pos_integer()</span><span·class="w"> |
| 182 | ···</span><span·class="ss">coefficient</span><span·class="p">,</span><span·class="w">·····</span><span·class="c1">%·pos_integer()</span><span·class="w"> | 182 | ···</span><span·class="ss">coefficient</span><span·class="p">,</span><span·class="w">·····</span><span·class="c1">%·pos_integer()</span><span·class="w"> |
| 183 | ···</span><span·class="ss">otherPrimeInfos</span><span·class="w">··</span><span·class="c1">%·[#OtherPrimeInfo{}]·|·asn1_NOVALUE</span><span·class="w"> | 183 | ···</span><span·class="ss">otherPrimeInfos</span><span·class="w">··</span><span·class="c1">%·[#OtherPrimeInfo{}]·|·asn1_NOVALUE</span><span·class="w"> |
| 184 | ··</span><span·class="p"·data-group-id=" | 184 | ··</span><span·class="p"·data-group-id="4935813630-2">}</span><span·class="p">.</span><span·class="w"> |
| 185 | </span><span·class="o">#</span><span·class="ss">'OtherPrimeInfo'</span><span·class="p"·data-group-id=" | 185 | </span><span·class="o">#</span><span·class="ss">'OtherPrimeInfo'</span><span·class="p"·data-group-id="4935813630-3">{</span><span·class="w"> |
| 186 | ···</span><span·class="ss">prime</span><span·class="p">,</span><span·class="w">···········</span><span·class="c1">%·pos_integer()</span><span·class="w"> | 186 | ···</span><span·class="ss">prime</span><span·class="p">,</span><span·class="w">···········</span><span·class="c1">%·pos_integer()</span><span·class="w"> |
| 187 | ···</span><span·class="ss">exponent</span><span·class="p">,</span><span·class="w">········</span><span·class="c1">%·pos_integer()</span><span·class="w"> | 187 | ···</span><span·class="ss">exponent</span><span·class="p">,</span><span·class="w">········</span><span·class="c1">%·pos_integer()</span><span·class="w"> |
| 188 | ···</span><span·class="ss">coefficient</span><span·class="w">······</span><span·class="c1">%·pos_integer()</span><span·class="w"> | 188 | ···</span><span·class="ss">coefficient</span><span·class="w">······</span><span·class="c1">%·pos_integer()</span><span·class="w"> |
| 189 | ··</span><span·class="p"·data-group-id=" | 189 | ··</span><span·class="p"·data-group-id="4935813630-3">}</span><span·class="p">.</span><span·class="w"> |
| 190 | </span><span·class="o">#</span><span·class="ss">'RSASSA-PSS-params'</span><span·class="p"·data-group-id=" | 190 | </span><span·class="o">#</span><span·class="ss">'RSASSA-PSS-params'</span><span·class="p"·data-group-id="4935813630-4">{</span><span·class="w"> |
| 191 | ···</span><span·class="ss">hashAlgorithm</span><span·class="p">,</span><span·class="w">·····</span><span·class="c1">%·#'HashAlgorithm'{}},</span><span·class="w"> | 191 | ···</span><span·class="ss">hashAlgorithm</span><span·class="p">,</span><span·class="w">·····</span><span·class="c1">%·#'HashAlgorithm'{}},</span><span·class="w"> |
| 192 | ···</span><span·class="ss">maskGenAlgorithm</span><span·class="p">,</span><span·class="w">··</span><span·class="c1">%·#'MaskGenAlgorithm'{}},</span><span·class="w"> | 192 | ···</span><span·class="ss">maskGenAlgorithm</span><span·class="p">,</span><span·class="w">··</span><span·class="c1">%·#'MaskGenAlgorithm'{}},</span><span·class="w"> |
| 193 | ···</span><span·class="ss">saltLength</span><span·class="p">,</span><span·class="w">········</span><span·class="c1">%·pos_integer(),</span><span·class="w"> | 193 | ···</span><span·class="ss">saltLength</span><span·class="p">,</span><span·class="w">········</span><span·class="c1">%·pos_integer(),</span><span·class="w"> |
| 194 | ···</span><span·class="ss">trailerField</span><span·class="p">,</span><span·class="w">······</span><span·class="c1">%·pos_integer()</span><span·class="w"> | 194 | ···</span><span·class="ss">trailerField</span><span·class="p">,</span><span·class="w">······</span><span·class="c1">%·pos_integer()</span><span·class="w"> |
| 195 | ··</span><span·class="p"·data-group-id=" | 195 | ··</span><span·class="p"·data-group-id="4935813630-4">}</span><span·class="p">.</span><span·class="w"> |
| 196 | </span><span·class="o">#</span><span·class="ss">'HashAlgorithm'</span><span·class="p"·data-group-id=" | 196 | </span><span·class="o">#</span><span·class="ss">'HashAlgorithm'</span><span·class="p"·data-group-id="4935813630-5">{</span><span·class="w"> |
| 197 | ···</span><span·class="ss">algorithm</span><span·class="p">,</span><span·class="w">··</span><span·class="c1">%·oid()</span><span·class="w"> | 197 | ···</span><span·class="ss">algorithm</span><span·class="p">,</span><span·class="w">··</span><span·class="c1">%·oid()</span><span·class="w"> |
| 198 | ···</span><span·class="ss">parameters</span><span·class="w">··</span><span·class="c1">%·defaults·to·asn1_NOVALUE</span><span·class="w"> | 198 | ···</span><span·class="ss">parameters</span><span·class="w">··</span><span·class="c1">%·defaults·to·asn1_NOVALUE</span><span·class="w"> |
| 199 | ··</span><span·class="p"·data-group-id=" | 199 | ··</span><span·class="p"·data-group-id="4935813630-5">}</span><span·class="p">.</span><span·class="w"> |
| 200 | </span><span·class="o">#</span><span·class="ss">'MaskGenAlgorithm'</span><span·class="p"·data-group-id=" | 200 | </span><span·class="o">#</span><span·class="ss">'MaskGenAlgorithm'</span><span·class="p"·data-group-id="4935813630-6">{</span><span·class="w"> |
| 201 | ···</span><span·class="ss">algorithm</span><span·class="p">,</span><span·class="w">··</span><span·class="c1">%·oid()</span><span·class="w"> | 201 | ···</span><span·class="ss">algorithm</span><span·class="p">,</span><span·class="w">··</span><span·class="c1">%·oid()</span><span·class="w"> |
| 202 | ···</span><span·class="ss">parameters</span><span·class="p">,</span><span·class="w">·</span><span·class="c1">%·defaults·to·asn1_NOVALUE</span><span·class="w"> | 202 | ···</span><span·class="ss">parameters</span><span·class="p">,</span><span·class="w">·</span><span·class="c1">%·defaults·to·asn1_NOVALUE</span><span·class="w"> |
| 203 | ··</span><span·class="p"·data-group-id=" | 203 | ··</span><span·class="p"·data-group-id="4935813630-6">}</span><span·class="p">.</span></code></pre><h2·id="dsa"·class="section-heading"> |
| 204 | ··<a·href="#dsa"·class="hover-link"> | 204 | ··<a·href="#dsa"·class="hover-link"> |
| 205 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 205 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 206 | ··</a> | 206 | ··</a> |
| 207 | ··<span·class="text">DSA</span> | 207 | ··<span·class="text">DSA</span> |
| 208 | </h2> | 208 | </h2> |
| 209 | <p>Erlang·representation·of | 209 | <p>Erlang·representation·of |
| 210 | <a·href="http://www.ietf.org/rfc/rfc6979.txt">Digital·Signature·Algorithm·(DSA)</a>·keys</p><pre><code·class="makeup·erlang"·translate="no"><span·class="o">#</span><span·class="ss">'DSAPrivateKey'</span><span·class="p"·data-group-id=" | 210 | <a·href="http://www.ietf.org/rfc/rfc6979.txt">Digital·Signature·Algorithm·(DSA)</a>·keys</p><pre><code·class="makeup·erlang"·translate="no"><span·class="o">#</span><span·class="ss">'DSAPrivateKey'</span><span·class="p"·data-group-id="7866892483-1">{</span><span·class="w"> |
| 211 | ···</span><span·class="ss">version</span><span·class="p">,</span><span·class="w">······</span><span·class="c1">%·pos_integer()</span><span·class="w"> | 211 | ···</span><span·class="ss">version</span><span·class="p">,</span><span·class="w">······</span><span·class="c1">%·pos_integer()</span><span·class="w"> |
| 212 | ···</span><span·class="ss">p</span><span·class="p">,</span><span·class="w">············</span><span·class="c1">%·pos_integer()</span><span·class="w"> | 212 | ···</span><span·class="ss">p</span><span·class="p">,</span><span·class="w">············</span><span·class="c1">%·pos_integer()</span><span·class="w"> |
| 213 | ···</span><span·class="ss">q</span><span·class="p">,</span><span·class="w">············</span><span·class="c1">%·pos_integer()</span><span·class="w"> | 213 | ···</span><span·class="ss">q</span><span·class="p">,</span><span·class="w">············</span><span·class="c1">%·pos_integer()</span><span·class="w"> |
| 214 | ···</span><span·class="ss">g</span><span·class="p">,</span><span·class="w">············</span><span·class="c1">%·pos_integer()</span><span·class="w"> | 214 | ···</span><span·class="ss">g</span><span·class="p">,</span><span·class="w">············</span><span·class="c1">%·pos_integer()</span><span·class="w"> |
| 215 | ···</span><span·class="ss">y</span><span·class="p">,</span><span·class="w">············</span><span·class="c1">%·pos_integer()</span><span·class="w"> | 215 | ···</span><span·class="ss">y</span><span·class="p">,</span><span·class="w">············</span><span·class="c1">%·pos_integer()</span><span·class="w"> |
| 216 | ···</span><span·class="ss">x</span><span·class="w">·············</span><span·class="c1">%·pos_integer()</span><span·class="w"> | 216 | ···</span><span·class="ss">x</span><span·class="w">·············</span><span·class="c1">%·pos_integer()</span><span·class="w"> |
| 217 | ··</span><span·class="p"·data-group-id=" | 217 | ··</span><span·class="p"·data-group-id="7866892483-1">}</span><span·class="p">.</span><span·class="w"> |
| 218 | </span><span·class="o">#</span><span·class="ss">'Dss-Parms'</span><span·class="p"·data-group-id=" | 218 | </span><span·class="o">#</span><span·class="ss">'Dss-Parms'</span><span·class="p"·data-group-id="7866892483-2">{</span><span·class="w"> |
| 219 | ···</span><span·class="ss">p</span><span·class="p">,</span><span·class="w">·········</span><span·class="c1">%·pos_integer()</span><span·class="w"> | 219 | ···</span><span·class="ss">p</span><span·class="p">,</span><span·class="w">·········</span><span·class="c1">%·pos_integer()</span><span·class="w"> |
| 220 | ···</span><span·class="ss">q</span><span·class="p">,</span><span·class="w">·········</span><span·class="c1">%·pos_integer()</span><span·class="w"> | 220 | ···</span><span·class="ss">q</span><span·class="p">,</span><span·class="w">·········</span><span·class="c1">%·pos_integer()</span><span·class="w"> |
| 221 | ···</span><span·class="ss">g</span><span·class="w">··········</span><span·class="c1">%·pos_integer()</span><span·class="w"> | 221 | ···</span><span·class="ss">g</span><span·class="w">··········</span><span·class="c1">%·pos_integer()</span><span·class="w"> |
| 222 | ··</span><span·class="p"·data-group-id=" | 222 | ··</span><span·class="p"·data-group-id="7866892483-2">}</span><span·class="p">.</span></code></pre><h2·id="ecdsa-and-eddsa"·class="section-heading"> |
| 223 | ··<a·href="#ecdsa-and-eddsa"·class="hover-link"> | 223 | ··<a·href="#ecdsa-and-eddsa"·class="hover-link"> |
| 224 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 224 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 225 | ··</a> | 225 | ··</a> |
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| 144 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 144 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 145 | ······</p> | 145 | ······</p> |
| 146 | <p>Copyright·©·1996-202 | 146 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 147 | ····</footer> | 147 | ····</footer> |
| 148 | ··</div> | 148 | ··</div> |
| 149 | </main> | 149 | </main> |
| 150 | </div> | 150 | </div> |
| 151 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 151 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 152 | ··<script> | 152 | ··<script> |
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| 145 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 145 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 146 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 146 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 147 | ······</p> | 147 | ······</p> |
| 148 | <p>Copyright·©·1996-202 | 148 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 149 | ····</footer> | 149 | ····</footer> |
| 150 | ··</div> | 150 | ··</div> |
| 151 | </main> | 151 | </main> |
| 152 | </div> | 152 | </div> |
| 153 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 153 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 154 | ··<script> | 154 | ··<script> |
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| 183 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 183 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 184 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 184 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 185 | ······</p> | 185 | ······</p> |
| 186 | <p>Copyright·©·1996-202 | 186 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 187 | ····</footer> | 187 | ····</footer> |
| 188 | ··</div> | 188 | ··</div> |
| 189 | </main> | 189 | </main> |
| 190 | </div> | 190 | </div> |
| 191 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 191 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 192 | ··<script> | 192 | ··<script> |
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| 792 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 792 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 793 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 793 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 794 | ······</p> | 794 | ······</p> |
| 795 | <p>Copyright·©·1996-202 | 795 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 796 | ····</footer> | 796 | ····</footer> |
| 797 | ··</div> | 797 | ··</div> |
| 798 | </main> | 798 | </main> |
| 799 | </div> | 799 | </div> |
| 800 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 800 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 801 | ··<script> | 801 | ··<script> |
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| 2751 | ······</p> | 2751 | ······</p> |
| 2752 | <p>Copyright·©·1996-202 | 2752 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 2753 | ····</footer> | 2753 | ····</footer> |
| 2754 | ··</div> | 2754 | ··</div> |
| 2755 | </main> | 2755 | </main> |
| 2756 | </div> | 2756 | </div> |
| 2757 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 2757 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 210 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 210 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 211 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 211 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 212 | ······</p> | 212 | ······</p> |
| 213 | <p>Copyright·©·1996-202 | 213 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 214 | ····</footer> | 214 | ····</footer> |
| 215 | ··</div> | 215 | ··</div> |
| 216 | </main> | 216 | </main> |
| 217 | </div> | 217 | </div> |
| 218 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 218 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 382 | ······</p> | 382 | ······</p> |
| 383 | <p>Copyright·©·1996-202 | 383 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 384 | ····</footer> | 384 | ····</footer> |
| 385 | ··</div> | 385 | ··</div> |
| 386 | </main> | 386 | </main> |
| 387 | </div> | 387 | </div> |
| 388 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 388 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 145 | ······</p> | 145 | ······</p> |
| 146 | <p>Copyright·©·1996-202 | 146 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 147 | ····</footer> | 147 | ····</footer> |
| 148 | ··</div> | 148 | ··</div> |
| 149 | </main> | 149 | </main> |
| 150 | </div> | 150 | </div> |
| 151 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 151 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 147 | ······</p> | 147 | ······</p> |
| 148 | <p>Copyright·©·1996-202 | 148 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 149 | ····</footer> | 149 | ····</footer> |
| 150 | ··</div> | 150 | ··</div> |
| 151 | </main> | 151 | </main> |
| 152 | </div> | 152 | </div> |
| 153 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 153 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 154 | ··<script> | 154 | ··<script> |
| 155 | ··let·initialized·=·false; | 155 | ··let·initialized·=·false; |
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| 226 | ······<p·class="built-using"> | 226 | ······<p·class="built-using"> |
| 227 | ········Built·using | 227 | ········Built·using |
| 228 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 228 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 229 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 229 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 230 | ······</p> | 230 | ······</p> |
| 231 | <p>Copyright·©·1996-202 | 231 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 232 | ····</footer> | 232 | ····</footer> |
| 233 | ··</div> | 233 | ··</div> |
| 234 | </main> | 234 | </main> |
| 235 | </div> | 235 | </div> |
| 236 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 236 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 237 | ··<script> | 237 | ··<script> |
| 238 | ··let·initialized·=·false; | 238 | ··let·initialized·=·false; |
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| 217 | ······<p·class="built-using"> | 217 | ······<p·class="built-using"> |
| 218 | ········Built·using | 218 | ········Built·using |
| 219 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 219 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 220 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 220 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 221 | ······</p> | 221 | ······</p> |
| 222 | <p>Copyright·©·1996-202 | 222 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 223 | ····</footer> | 223 | ····</footer> |
| 224 | ··</div> | 224 | ··</div> |
| 225 | </main> | 225 | </main> |
| 226 | </div> | 226 | </div> |
| 227 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 227 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 228 | ··<script> | 228 | ··<script> |
| 229 | ··let·initialized·=·false; | 229 | ··let·initialized·=·false; |
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| 825 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·restore_tag(true·|·{<a·href="../../../../erts-16.0/doc/html/erlang.html#t:non_neg_integer/0">non_neg_integer</a>(),·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:binary/0">binary</a>()·|·[]})·->·true.</pre> | 825 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·restore_tag(true·|·{<a·href="../../../../erts-16.0/doc/html/erlang.html#t:non_neg_integer/0">non_neg_integer</a>(),·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:binary/0">binary</a>()·|·[]})·->·true.</pre> |
| 826 | ······</div> | 826 | ······</div> |
| 827 | <p>Restores·the·previous·state·of·user·tags·and·their·spreading·as·it·was·before·a | 827 | <p>Restores·the·previous·state·of·user·tags·and·their·spreading·as·it·was·before·a |
| 828 | call·to·<a·href="#spread_tag/1"><code·class="inline">spread_tag/1</code></a>.</p><p>Note·that·the·restoring·is·not·limited·to·the·same·process;·one·can | 828 | call·to·<a·href="#spread_tag/1"><code·class="inline">spread_tag/1</code></a>.</p><p>Note·that·the·restoring·is·not·limited·to·the·same·process;·one·can |
| 829 | utilize·this·to·turn·off·spreding·in·one·process·and·restore·it·in·a | 829 | utilize·this·to·turn·off·spreding·in·one·process·and·restore·it·in·a |
| 830 | newly·created·process·that·is·is·actually·going·to·send·messages:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">f</span><span·class="p"·data-group-id="1 | 830 | newly·created·process·that·is·is·actually·going·to·send·messages:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">f</span><span·class="p"·data-group-id="9173866025-1">(</span><span·class="p"·data-group-id="9173866025-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 831 | ····</span><span·class="n">TagData</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">dyntrace</span><span·class="p">:</span><span·class="nf">spread_tag</span><span·class="p"·data-group-id="1 | 831 | ····</span><span·class="n">TagData</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">dyntrace</span><span·class="p">:</span><span·class="nf">spread_tag</span><span·class="p"·data-group-id="9173866025-2">(</span><span·class="ss">false</span><span·class="p"·data-group-id="9173866025-2">)</span><span·class="p">,</span><span·class="w"> |
| 832 | ····</span><span·class="nf">spawn</span><span·class="p"·data-group-id="1 | 832 | ····</span><span·class="nf">spawn</span><span·class="p"·data-group-id="9173866025-3">(</span><span·class="nf">fun</span><span·class="p"·data-group-id="9173866025-4">(</span><span·class="p"·data-group-id="9173866025-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 833 | ·············</span><span·class="nc">dyntrace</span><span·class="p">:</span><span·class="nf">restore_tag</span><span·class="p"·data-group-id="1 | 833 | ·············</span><span·class="nc">dyntrace</span><span·class="p">:</span><span·class="nf">restore_tag</span><span·class="p"·data-group-id="9173866025-5">(</span><span·class="n">TagData</span><span·class="p"·data-group-id="9173866025-5">)</span><span·class="p">,</span><span·class="w"> |
| 834 | ·············</span><span·class="nf">do_something</span><span·class="p"·data-group-id="1 | 834 | ·············</span><span·class="nf">do_something</span><span·class="p"·data-group-id="9173866025-6">(</span><span·class="p"·data-group-id="9173866025-6">)</span><span·class="w"> |
| 835 | ··········</span><span·class="k">end</span><span·class="p"·data-group-id="1 | 835 | ··········</span><span·class="k">end</span><span·class="p"·data-group-id="9173866025-3">)</span><span·class="p">,</span><span·class="w"> |
| 836 | ····</span><span·class="nf">do_something_else</span><span·class="p"·data-group-id="1 | 836 | ····</span><span·class="nf">do_something_else</span><span·class="p"·data-group-id="9173866025-7">(</span><span·class="p"·data-group-id="9173866025-7">)</span><span·class="p">,</span><span·class="w"> |
| 837 | ····</span><span·class="nc">dyntrace</span><span·class="p">:</span><span·class="nf">restore_tag</span><span·class="p"·data-group-id="1 | 837 | ····</span><span·class="nc">dyntrace</span><span·class="p">:</span><span·class="nf">restore_tag</span><span·class="p"·data-group-id="9173866025-8">(</span><span·class="n">TagData</span><span·class="p"·data-group-id="9173866025-8">)</span><span·class="p">.</span></code></pre><p>Correctly·handling·user·tags·and·their·spreading·might·take·some·effort,·as |
| 838 | Erlang·programs·tend·to·send·and·receive·messages·so·that·sometimes·the·user·tag | 838 | Erlang·programs·tend·to·send·and·receive·messages·so·that·sometimes·the·user·tag |
| 839 | gets·lost·due·to·various·things,·like·double·receives·or·communication·with·a | 839 | gets·lost·due·to·various·things,·like·double·receives·or·communication·with·a |
| 840 | port·(ports·do·not·handle·user·tags,·in·the·same·way·as·they·do·not·handle | 840 | port·(ports·do·not·handle·user·tags,·in·the·same·way·as·they·do·not·handle |
| 841 | regular·sequential·trace·tokens).</p> | 841 | regular·sequential·trace·tokens).</p> |
| 842 | ··</section> | 842 | ··</section> |
| 843 | </section> | 843 | </section> |
| 844 | <section·class="detail"·id="spread_tag/1"> | 844 | <section·class="detail"·id="spread_tag/1"> |
| Offset 877, 20 lines modified | Offset 877, 20 lines modified | ||
| 877 | <a·href="#restore_tag/1"><code·class="inline">restore_tag/1</code></a>,·one·can·enable·or·disable·spreading·of·user | 877 | <a·href="#restore_tag/1"><code·class="inline">restore_tag/1</code></a>,·one·can·enable·or·disable·spreading·of·user |
| 878 | tags·to·other·processes·and·then·restore·the·previous·state·of·the·user·tag.·The | 878 | tags·to·other·processes·and·then·restore·the·previous·state·of·the·user·tag.·The |
| 879 | TagData·returned·from·this·call·contains·all·previous·information·so·the·state | 879 | TagData·returned·from·this·call·contains·all·previous·information·so·the·state |
| 880 | (including·any·previously·spread·user·tags)·will·be·completely·restored·by·a | 880 | (including·any·previously·spread·user·tags)·will·be·completely·restored·by·a |
| 881 | later·call·to·<a·href="#restore_tag/1"><code·class="inline">restore_tag/1</code></a>.</p><p>The·<a·href="../../../../lib/kernel-10.3/doc/html/file.html"><code·class="inline">file</code></a>·module·already·spreads·tags,·so·there·is·no·need·to·manually·call | 881 | later·call·to·<a·href="#restore_tag/1"><code·class="inline">restore_tag/1</code></a>.</p><p>The·<a·href="../../../../lib/kernel-10.3/doc/html/file.html"><code·class="inline">file</code></a>·module·already·spreads·tags,·so·there·is·no·need·to·manually·call |
| 882 | this·function·to·get·user·tags·spread·to·the·<code·class="inline">efile</code>·driver·through·that·module.</p><p>The·most·use·of·this·function·would·be·if·one,·for·example,·uses·the·<a·href="../../../../lib/stdlib-7.0/doc/html/io.html"><code·class="inline">io</code></a>·module | 882 | this·function·to·get·user·tags·spread·to·the·<code·class="inline">efile</code>·driver·through·that·module.</p><p>The·most·use·of·this·function·would·be·if·one,·for·example,·uses·the·<a·href="../../../../lib/stdlib-7.0/doc/html/io.html"><code·class="inline">io</code></a>·module |
| 883 | to·communicate·with·an·I/O-server·for·a·regular·file,·such·as·in·the·following | 883 | to·communicate·with·an·I/O-server·for·a·regular·file,·such·as·in·the·following |
| 884 | example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">f</span><span·class="p"·data-group-id=" | 884 | example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">f</span><span·class="p"·data-group-id="2339230333-1">(</span><span·class="p"·data-group-id="2339230333-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 885 | ···</span><span·class="p"·data-group-id=" | 885 | ···</span><span·class="p"·data-group-id="2339230333-2">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">F</span><span·class="p"·data-group-id="2339230333-2">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class[·...·truncated·by·diffoscope;·len:·389,·SHA:·a616607ed04b280b9c35cc813a0b8444d428d5f36ba4d8181cd115987de9b9e1·...·]-3">)</span><span·class="p">,</span><span·class="w"> |
| 886 | ···</span><span·class="n">Saved</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">dyntrace</span><span·class="p">:</span><span·class="nf">spread_tag</span><span·class="p"·data-group-id=" | 886 | ···</span><span·class="n">Saved</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">dyntrace</span><span·class="p">:</span><span·class="nf">spread_tag</span><span·class="p"·data-group-id="2339230333-5">(</span><span·class="ss">true</span><span·class="p"·data-group-id="2339230333-5">)</span><span·class="p">,</span><span·class="w"> |
| 887 | ···</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 887 | ···</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="2339230333-6">(</span><span·class="n">F</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"Hello·world!"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2339230333-7">[</span><span·class="p[·...·truncated·by·diffoscope;·len:·80,·SHA:·f0eff184fb31d1307d18bef0c2330f7314286a4c19e988dff0d61f9c97024c36·...·]-6">)</span><span·class="p">,</span><span·class="w"> |
| 888 | ···</span><span·class="nc">dyntrace</span><span·class="p">:</span><span·class="nf">restore_tag</span><span·class="p"·data-group-id=" | 888 | ···</span><span·class="nc">dyntrace</span><span·class="p">:</span><span·class="nf">restore_tag</span><span·class="p"·data-group-id="2339230333-8">(</span><span·class="n">Saved</span><span·class="p"·data-group-id="2339230333-8">)</span><span·class="p">,</span><span·class="w"> |
| 889 | ···</span><span·class="nc">file</span><span·class="p">:</span><span·class="nf">close</span><span·class="p"·data-group-id=" | 889 | ···</span><span·class="nc">file</span><span·class="p">:</span><span·class="nf">close</span><span·class="p"·data-group-id="2339230333-9">(</span><span·class="n">F</span><span·class="p"·data-group-id="2339230333-9">)</span><span·class="p">.</span></code></pre><p>In·this·example,·any·user·tag·set·in·the·calling·process·will·be·spread·to·the |
| 890 | I/O-server·when·the·<a·href="../../../../lib/stdlib-7.0/doc/html/io.html#format/3"><code·class="inline">io:format/3</code></a>·call·is·done.</p> | 890 | I/O-server·when·the·<a·href="../../../../lib/stdlib-7.0/doc/html/io.html#format/3"><code·class="inline">io:format/3</code></a>·call·is·done.</p> |
| 891 | ··</section> | 891 | ··</section> |
| 892 | </section> | 892 | </section> |
| 893 | ····</div> | 893 | ····</div> |
| 894 | ··</section> | 894 | ··</section> |
| Offset 912, 15 lines modified | Offset 912, 15 lines modified | ||
| 912 | ······<p·class="built-using"> | 912 | ······<p·class="built-using"> |
| 913 | ········Built·using | 913 | ········Built·using |
| 914 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 914 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 915 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 915 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 916 | ······</p> | 916 | ······</p> |
| 917 | <p>Copyright·©·1996-202 | 917 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 918 | ····</footer> | 918 | ····</footer> |
| 919 | ··</div> | 919 | ··</div> |
| 920 | </main> | 920 | </main> |
| 921 | </div> | 921 | </div> |
| 922 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 922 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 923 | ··<script> | 923 | ··<script> |
| 924 | ··let·initialized·=·false; | 924 | ··let·initialized·=·false; |
| Offset 345, 16 lines modified | Offset 345, 16 lines modified | ||
| 345 | ······</div> | 345 | ······</div> |
| 346 | <p>A·histogram·of·block·sizes·where·each·interval's·upper·bound·is·twice·as·high·as | 346 | <p>A·histogram·of·block·sizes·where·each·interval's·upper·bound·is·twice·as·high·as |
| 347 | the·one·before·it.</p><p>The·upper·bound·of·the·first·interval·is·provided·by·the·function·that·returned | 347 | the·one·before·it.</p><p>The·upper·bound·of·the·first·interval·is·provided·by·the·function·that·returned |
| 348 | the·histogram,·and·the·last·interval·has·no·upper·bound.</p><p>For·example,·the·histogram·below·has·40·(<code·class="inline">message</code>)·blocks·between·128-256·bytes | 348 | the·histogram,·and·the·last·interval·has·no·upper·bound.</p><p>For·example,·the·histogram·below·has·40·(<code·class="inline">message</code>)·blocks·between·128-256·bytes |
| 349 | in·size,·78·blocks·between·256-512·bytes,2·blocks·between·512-1024·bytes,·and·2 | 349 | in·size,·78·blocks·between·256-512·bytes,2·blocks·between·512-1024·bytes,·and·2 |
| 350 | blocks·between·1-2KB.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="nc">instrument</span><span·class="p">:</span><span·class="nf">allocations</span><span·class="p"·data-group-id=" | 350 | blocks·between·1-2KB.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="nc">instrument</span><span·class="p">:</span><span·class="nf">allocations</span><span·class="p"·data-group-id="2820140879-1">(</span><span·class="p"·data-group-id="2820140879-2">#{</span><span·class="w">·</span><span·class="ss">histogram_start</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="mi">128</span><span·class="p[·...·truncated·by·diffoscope;·len:·293,·SHA:·e3d9276f390371e25898d65a560290f8cda07423de9b5f493c56a4c8255497aa·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 351 | </span><span·class="p"·data-group-id=" | 351 | </span><span·class="p"·data-group-id="2820140879-3">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2820140879-4">{</span><span·class="mi">128</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">0</span><span·c[·...·truncated·by·diffoscope;·len:·1360,·SHA:·010e7e2b3966091ed5de6468637c76188786abc24470207c585cb8225c203815·...·]-3">}</span></code></pre> |
| 352 | ··</section> | 352 | ··</section> |
| 353 | </section> | 353 | </section> |
| 354 | <section·class="detail"·id="t:carrier_info_list/0"> | 354 | <section·class="detail"·id="t:carrier_info_list/0"> |
| 355 | ··<div·class="detail-header"> | 355 | ··<div·class="detail-header"> |
| 356 | ····<a·href="#t:carrier_info_list/0"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·type"> | 356 | ····<a·href="#t:carrier_info_list/0"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·type"> |
| 357 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 357 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 480, 38 lines modified | Offset 480, 38 lines modified | ||
| 480 | to·an·allocator·of·a·different·type.</p><p>Defaults·to·all·<code·class="inline">alloc_util</code>·allocators.</p></li><li><p><strong><code·class="inline">scheduler_ids</code></strong>·-·The·scheduler·ids·whose·allocator·instances·will·be | 480 | to·an·allocator·of·a·different·type.</p><p>Defaults·to·all·<code·class="inline">alloc_util</code>·allocators.</p></li><li><p><strong><code·class="inline">scheduler_ids</code></strong>·-·The·scheduler·ids·whose·allocator·instances·will·be |
| 481 | searched.·A·scheduler·id·of·0·will·refer·to·the·global·instance·that·is·not | 481 | searched.·A·scheduler·id·of·0·will·refer·to·the·global·instance·that·is·not |
| 482 | tied·to·any·particular·scheduler.·Defaults·to·all·schedulers·and·the·global | 482 | tied·to·any·particular·scheduler.·Defaults·to·all·schedulers·and·the·global |
| 483 | instance.</p></li><li><p><strong><code·class="inline">histogram_start</code></strong>·-·The·upper·bound·of·the·first·interval·in·the·allocated | 483 | instance.</p></li><li><p><strong><code·class="inline">histogram_start</code></strong>·-·The·upper·bound·of·the·first·interval·in·the·allocated |
| 484 | block·size·histograms.·Defaults·to·128.</p></li><li><p><strong><code·class="inline">histogram_width</code></strong>·-·The·number·of·intervals·in·the·allocated·block·size | 484 | block·size·histograms.·Defaults·to·128.</p></li><li><p><strong><code·class="inline">histogram_width</code></strong>·-·The·number·of·intervals·in·the·allocated·block·size |
| 485 | histograms.·Defaults·to·18.</p></li><li><p><strong><code·class="inline">flags</code></strong>·-·Controls·how·to·group·the·output,·for·example·showing | 485 | histograms.·Defaults·to·18.</p></li><li><p><strong><code·class="inline">flags</code></strong>·-·Controls·how·to·group·the·output,·for·example·showing |
| 486 | allocations·on·a·per-process·basis·(when·possible)·rather·than·only·a | 486 | allocations·on·a·per-process·basis·(when·possible)·rather·than·only·a |
| 487 | NIF/driver-basis.·Defaults·to·<code·class="inline">[]</code>.</p></li></ul><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="nc">instrument</span><span·class="p">:</span><span·class="nf">allocations</span><span·class="p"·data-group-id="24 | 487 | NIF/driver-basis.·Defaults·to·<code·class="inline">[]</code>.</p></li></ul><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="nc">instrument</span><span·class="p">:</span><span·class="nf">allocations</span><span·class="p"·data-group-id="1242407382-1">(</span><span·class="p"·data-group-id="1242407382-2">#{</span><span·class="w">·</span><span·class="ss">histogram_start</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="mi">128</span><span·class="p[·...·truncated·by·diffoscope;·len:·292,·SHA:·d1d57f04f956c76ea978247301856e6b2cc474d5b545b2bcbb0984c5972ff239·...·]2-1">)</span><span·class="p">.</span><span·class="w"> |
| 488 | </span><span·class="p"·data-group-id="24 | 488 | </span><span·class="p"·data-group-id="1242407382-3">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="p"·data-group-id="1242407382-4">{</span><span·class="mi">128</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="w"> |
| 489 | ·····</span><span·class="p"·data-group-id="24 | 489 | ·····</span><span·class="p"·data-group-id="1242407382-5">#{</span><span·class="ss">udp_inet</span><span·class="w">·</span><span·class="p">=></span><span·class="w"> |
| 490 | ···········</span><span·class="p"·data-group-id="24 | 490 | ···········</span><span·class="p"·data-group-id="1242407382-6">#{</span><span·class="ss">driver_event_state</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="1242407382-7">{</span><span·class="mi">0</span><span·class="p">,</span><span·class="[·...·truncated·by·diffoscope;·len:·742,·SHA:·c2bd74a619523755560da855cd394d007cce13d258f4c57a41d23557e1c4827b·...·]2-6">}</span><span·class="p">,</span><span·class="w"> |
| 491 | ·······</span><span·class="ss">system</span><span·class="w">·</span><span·class="p">=></span><span·class="w"> | 491 | ·······</span><span·class="ss">system</span><span·class="w">·</span><span·class="p">=></span><span·class="w"> |
| 492 | ···········</span><span·class="p"·data-group-id="24 | 492 | ···········</span><span·class="p"·data-group-id="1242407382-8">#{</span><span·class="ss">heap</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="1242407382-9">{</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><s[·...·truncated·by·diffoscope;·len:·676,·SHA:·4ba0daaaf078b5e59bb6d364703374fb959bbb5d4ad586df76e127e9be615905·...·]2-9">}</span><span·class="p">,</span><span·class="w"> |
| 493 | ·············</span><span·class="ss">db_term</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="24 | 493 | ·············</span><span·class="ss">db_term</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="1242407382-10">{</span><span·class="mi">271</span><span·class="p">,</span><span·class="mi">3</span><span·class="p">,</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">52</span><span·class="p">,</span><span·class="mi">80</span><span·cl[·...·truncated·by·diffoscope;·len:·522,·SHA:·570967e605bb00f824f41d997742b11c9b5d8a4080644574afb32018049160f9·...·]2-10">}</span><span·class="p">,</span><span·class="w"> |
| 494 | ·············</span><span·class="ss">code</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="24 | 494 | ·············</span><span·class="ss">code</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="1242407382-11">{</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">5</span><span·class="p">,</span><span·class="mi">3</span><span·class=[·...·truncated·by·diffoscope;·len:·523,·SHA:·1664d0deaf44b7be7bcfa80fa4a3f55b8da028dcb1cbc010669b4bd9460cbe74·...·]2-11">}</span><span·class="p">,</span><span·class="w"> |
| 495 | ·············</span><span·class="ss">binary</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="24 | 495 | ·············</span><span·class="ss">binary</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="1242407382-12">{</span><span·class="mi">18</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">7</span><span·class[·...·truncated·by·diffoscope;·len:·519,·SHA:·1d0ffb69c9621da7a1ed17d376a4c31e44b11c1a20796ed1a2951bdfa828d6b4·...·]2-12">}</span><span·class="p">,</span><span·class="w"> |
| 496 | ·············</span><span·class="ss">message</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="24 | 496 | ·············</span><span·class="ss">message</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="1242407382-13">{</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">40</span><span·class="p">,</span><span·class="mi">78</span><span·class="p">,</span><span·class="mi">2</span><span·class="p">,</span><span·class="mi">2</span><span·clas[·...·truncated·by·diffoscope;·len:·520,·SHA:·162a3716ce085dc88ceac0ef665b59f2cae6daf7c38b8c1785d6258f3f7f9d45·...·]2-13">}</span><span·class="p">,</span><span·class="w"> |
| 497 | ·············</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w">·</span><span·class="p"·data-group-id="24 | 497 | ·············</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w">·</span><span·class="p"·data-group-id="1242407382-8">}</span><span·class="w"> |
| 498 | ·······</span><span·class="ss">spawn_forker</span><span·class="w">·</span><span·class="p">=></span><span·class="w"> | 498 | ·······</span><span·class="ss">spawn_forker</span><span·class="w">·</span><span·class="p">=></span><span·class="w"> |
| 499 | ···········</span><span·class="p"·data-group-id="24 | 499 | ···········</span><span·class="p"·data-group-id="1242407382-14">#{</span><span·class="ss">driver_select_data_state</span><span·class="w">·</span><span·class="p">=></span><span·class="w"> |
| 500 | ·················</span><span·class="p"·data-group-id="24 | 500 | ·················</span><span·class="p"·data-group-id="1242407382-15">{</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class=[·...·truncated·by·diffoscope;·len:·572,·SHA:·f57b4386a8afa05366e897c4d4b30be9640711ede9ea3fd86f89cdbd49d36dc0·...·]2-14">}</span><span·class="p">,</span><span·class="w"> |
| 501 | ·······</span><span·class="ss">ram_file_drv</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="24 | 501 | ·······</span><span·class="ss">ram_file_drv</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="1242407382-16">#{</span><span·class="ss">drv_binary</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="1242407382-17">{</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0<[·...·truncated·by·diffoscope;·len:·737,·SHA:·fbf675719834d866dcebf70dad696f40392f9e0594d980aad078fe8be9b3c81a·...·]2-16">}</span><span·class="p">,</span><span·class="w"> |
| 502 | ·······</span><span·class="ss">prim_file</span><span·class="w">·</span><span·class="p">=></span><span·class="w"> | 502 | ·······</span><span·class="ss">prim_file</span><span·class="w">·</span><span·class="p">=></span><span·class="w"> |
| 503 | ···········</span><span·class="p"·data-group-id="24 | 503 | ···········</span><span·class="p"·data-group-id="1242407382-18">#{</span><span·class="ss">process_specific_data</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="1242407382-19">{</span><span·class="mi">2</span><span·class="p">,</span><span·cl[·...·truncated·by·diffoscope;·len:·694,·SHA:·6199cbdd2e22c9c642151c53e7bcba71a58ab7d48e608df4592b5d97baf76870·...·]2-19">}</span><span·class="p">,</span><span·class="w"> |
| 504 | ·············</span><span·class="ss">nif_trap_export_entry</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="24 | 504 | ·············</span><span·class="ss">nif_trap_export_entry</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="1242407382-20">{</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">4</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class=[·...·truncated·by·diffoscope;·len:·518,·SHA:·bde0fe7cf491ba52a75514c2977c35b0274adfd0c3a6a65c0b53b52a3c57c90a·...·]2-20">}</span><span·class="p">,</span><span·class="w"> |
| 505 | ·············</span><span·class="ss">monitor_extended</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="24 | 505 | ·············</span><span·class="ss">monitor_extended</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="1242407382-21">{</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class=[·...·truncated·by·diffoscope;·len:·518,·SHA:·bde0fe7cf491ba52a75514c2977c35b0274adfd0c3a6a65c0b53b52a3c57c90a·...·]2-21">}</span><span·class="p">,</span><span·class="w"> |
| 506 | ·············</span><span·class="ss">drv_binary</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="24 | 506 | ·············</span><span·class="ss">drv_binary</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="1242407382-22">{</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class=[·...·truncated·by·diffoscope;·len:·518,·SHA:·2027c151a5a5e1d95c683630418c27d188b096689b5aac2f44beb03139b07abd·...·]2-22">}</span><span·class="p">,</span><span·class="w"> |
| 507 | ·············</span><span·class="ss">binary</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="24 | 507 | ·············</span><span·class="ss">binary</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="1242407382-23">{</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">4</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class=[·...·truncated·by·diffoscope;·len:·572,·SHA:·ecb7756de00094cc4905d819f3190a07e29082149b7170fdc66a837a1b79f83e·...·]2-18">}</span><span·class="p">,</span><span·class="w"> |
| 508 | ·······</span><span·class="ss">prim_buffer</span><span·class="w">·</span><span·class="p">=></span><span·class="w"> | 508 | ·······</span><span·class="ss">prim_buffer</span><span·class="w">·</span><span·class="p">=></span><span·class="w"> |
| 509 | ···········</span><span·class="p"·data-group-id="24 | 509 | ···········</span><span·class="p"·data-group-id="1242407382-24">#{</span><span·class="ss">nif_internal</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="1242407382-25">{</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">[·...·truncated·by·diffoscope;·len:·685,·SHA:·724a8bcade576953556341e598ed82b04114184b1b0c8689a21d27f1c30a06bc·...·]2-25">}</span><span·class="p">,</span><span·class="w"> |
| 510 | ·············</span><span·class="ss">binary</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="24 | 510 | ·············</span><span·class="ss">binary</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="1242407382-26">{</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">4</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class=[·...·truncated·by·diffoscope;·len:·732,·SHA:·3a31ad194fade30d1257d597332e21b530d5d966c9183b288d7d7ebdeab45182·...·]2-3">}</span></code></pre> |
| 511 | ··</section> | 511 | ··</section> |
| 512 | </section> | 512 | </section> |
| 513 | <section·class="detail"·id="carriers/0"> | 513 | <section·class="detail"·id="carriers/0"> |
| 514 | ··<div·class="detail-header"> | 514 | ··<div·class="detail-header"> |
| 515 | ····<a·href="#carriers/0"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 515 | ····<a·href="#carriers/0"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 516 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 516 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 576, 23 lines modified | Offset 576, 23 lines modified | ||
| 576 | allocator·type·and·scheduler·id.</p><p>If·the·specified·allocator·types·are·not·enabled,·the·call·will·fail·with | 576 | allocator·type·and·scheduler·id.</p><p>If·the·specified·allocator·types·are·not·enabled,·the·call·will·fail·with |
| 577 | <code·class="inline">{error,·not_enabled}</code>.</p><p>The·following·options·can·be·used:</p><ul><li><p><strong><code·class="inline">allocator_types</code></strong>·-·The·allocator·types·that·will·be·searched.·Defaults·to | 577 | <code·class="inline">{error,·not_enabled}</code>.</p><p>The·following·options·can·be·used:</p><ul><li><p><strong><code·class="inline">allocator_types</code></strong>·-·The·allocator·types·that·will·be·searched.·Defaults·to |
| 578 | all·<code·class="inline">alloc_util</code>·allocators.</p></li><li><p><strong><code·class="inline">scheduler_ids</code></strong>·-·The·scheduler·ids·whose·allocator·instances·will·be | 578 | all·<code·class="inline">alloc_util</code>·allocators.</p></li><li><p><strong><code·class="inline">scheduler_ids</code></strong>·-·The·scheduler·ids·whose·allocator·instances·will·be |
| 579 | searched.·A·scheduler·id·of·0·will·refer·to·the·global·instance·that·is·not | 579 | searched.·A·scheduler·id·of·0·will·refer·to·the·global·instance·that·is·not |
| 580 | tied·to·any·particular·scheduler.·Defaults·to·all·schedulers·and·the·global | 580 | tied·to·any·particular·scheduler.·Defaults·to·all·schedulers·and·the·global |
| 581 | instance.</p></li><li><p><strong><code·class="inline">histogram_start</code></strong>·-·The·upper·bound·of·the·first·interval·in·the·free | 581 | instance.</p></li><li><p><strong><code·class="inline">histogram_start</code></strong>·-·The·upper·bound·of·the·first·interval·in·the·free |
| 582 | block·size·histograms.·Defaults·to·512.</p></li><li><p><strong><code·class="inline">histogram_width</code></strong>·-·The·number·of·intervals·in·the·free·block·size | 582 | block·size·histograms.·Defaults·to·512.</p></li><li><p><strong><code·class="inline">histogram_width</code></strong>·-·The·number·of·intervals·in·the·free·block·size |
| 583 | histograms.·Defaults·to·14.</p></li></ul><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="nc">instrument</span><span·class="p">:</span><span·class="nf">carriers</span><span·class="p"·data-group-id=" | 583 | histograms.·Defaults·to·14.</p></li></ul><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="nc">instrument</span><span·class="p">:</span><span·class="nf">carriers</span><span·class="p"·data-group-id="4811810542-1">(</span><span·class="p"·data-group-id="4811810542-2">#{</span><span·class="w">·</span><span·class="ss">histogram_start</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="mi">512</span><span·class="p[·...·truncated·by·diffoscope;·len:·292,·SHA:·f81b7238d3762ffb201611bb45e6a51e3afd4fe0d25dddf8937eab7fd5549956·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 584 | </span><span·class="p"·data-group-id=" | 584 | </span><span·class="p"·data-group-id="4811810542-3">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="p"·data-group-id="4811810542-4">{</span><span·class="mi">512</span><span·class="p">,</span><span·class="w"> |
| 585 | ·····</span><span·class="p"·data-group-id=" | 585 | ·····</span><span·class="p"·data-group-id="4811810542-5">[</span><span·class="p"·data-group-id="4811810542-6">{</span><span·class="ss">driver_alloc</span><span·class="p">,</span><span·class="ss">false</span><span·class="p">,</span><span·class="mi">262144</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="w"> |
| 586 | ····················</span><span·class="p"·data-group-id=" | 586 | ····················</span><span·class="p"·data-group-id="4811810542-7">[</span><span·class="p"·data-group-id="4811810542-8">{</span><span·class="ss">driver_alloc</span><span·class="p">,</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">32784</span><span·class="p"·data-group-id="4811810542-8[·...·truncated·by·diffoscope;·len:·51,·SHA:·a829f824cb5a6c2f39afc12b440fb40e6dd89353a9bae2abc30884f077b5ea54·...·]-7">]</span><span·class="p">,</span><span·class="w"> |
| 587 | ····················</span><span·class="p"·data-group-id=" | 587 | ····················</span><span·class="p"·data-group-id="4811810542-9">{</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="[·...·truncated·by·diffoscope;·len:·228,·SHA:·5f7c7f837e58760518b4962bd3887ed50e155a784eb11fff336f552f71dd36b5·...·]-6">}</span><span·class="p">,</span><span·class="w"> |
| 588 | ······</span><span·class="p"·data-group-id=" | 588 | ······</span><span·class="p"·data-group-id="4811810542-10">{</span><span·class="ss">binary_alloc</span><span·class="p">,</span><span·class="ss">false</span><span·class="p">,</span><span·class="mi">32768</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="w"> |
| 589 | ····················</span><span·class="p"·data-group-id=" | 589 | ····················</span><span·class="p"·data-group-id="4811810542-11">[</span><span·class="p"·data-group-id="4811810542-12">{</span><span·class="ss">binary_alloc</span><span·class="p">,</span><span·class="mi">15</span><span·class="p">,</span><span·class="mi">4304</span><span·class="p"·data-group-id="4811810542[·...·truncated·by·diffoscope;·len:·54,·SHA:·a3c9c27b7070f35808079fb92c3450edbaebd1d7e8af1682c04d509431e16d73·...·]-11">]</span><span·class="p">,</span><span·class="w"> |
| 590 | ····················</span><span·class="p"·data-group-id=" | 590 | ····················</span><span·class="p"·data-group-id="4811810542-13">{</span><span·class="mi">3</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">1</span><span·class=[·...·truncated·by·diffoscope;·len:·230,·SHA:·8683e75b165fd2e44aff6c0778731ee3698b5b4837e86226c08a3a58b74b08da·...·]-10">}</span><span·class="p">,</span><span·class="w"> |
| 591 | ······</span><span·class="p"·data-group-id=" | 591 | ······</span><span·class="p"·data-group-id="4811810542-14">{</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p"·data-group-id="4811810542-14">}</span><span·class="p">|</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class[·...·truncated·by·diffoscope;·len:·136,·SHA:·ab663b62a108a862c342f90a43ba41af48e7d34151bee1576551edb6dd85a8fc·...·]-3">}</span></code></pre> |
| 592 | ··</section> | 592 | ··</section> |
| 593 | </section> | 593 | </section> |
| 594 | ····</div> | 594 | ····</div> |
| 595 | ··</section> | 595 | ··</section> |
| 596 | ····<footer·class="footer"> | 596 | ····<footer·class="footer"> |
| Offset 613, 15 lines modified | Offset 613, 15 lines modified | ||
| 613 | ······<p·class="built-using"> | 613 | ······<p·class="built-using"> |
| 614 | ········Built·using | 614 | ········Built·using |
| 615 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 615 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 616 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 616 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 617 | ······</p> | 617 | ······</p> |
| 618 | <p>Copyright·©·1996-202 | 618 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 619 | ····</footer> | 619 | ····</footer> |
| 620 | ··</div> | 620 | ··</div> |
| 621 | </main> | 621 | </main> |
| 622 | </div> | 622 | </div> |
| 623 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 623 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 624 | ··<script> | 624 | ··<script> |
| 625 | ··let·initialized·=·false; | 625 | ··let·initialized·=·false; |
| Offset 146, 40 lines modified | Offset 146, 40 lines modified | ||
| 146 | $·make</code></pre><h2·id="dyntrace-tracepoints"·class="section-heading"> | 146 | $·make</code></pre><h2·id="dyntrace-tracepoints"·class="section-heading"> |
| 147 | ··<a·href="#dyntrace-tracepoints"·class="hover-link"> | 147 | ··<a·href="#dyntrace-tracepoints"·class="hover-link"> |
| 148 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 148 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 149 | ··</a> | 149 | ··</a> |
| 150 | ··<span·class="text">Dyntrace·Tracepoints</span> | 150 | ··<span·class="text">Dyntrace·Tracepoints</span> |
| 151 | </h2> | 151 | </h2> |
| 152 | <p>All·tracepoints·are·in·the·domain·of·<code·class="inline">org_erlang_dyntrace</code></p><p>All·Erlang·types·are·the·string·equivalent·in·LTTng.</p><p><em>process_spawn</em></p><ul><li><code·class="inline">pid·:·string</code>·::·Process·ID.·Ex.·<code·class="inline">"<0.131.0>"</code></li><li><code·class="inline">parent·:·string</code>·::·Process·ID.·Ex.·<code·class="inline">"<0.131.0>"</code></li><li><code·class="inline">entry·:·string</code>·::·Code·Location.·Ex.·<code·class="inline">"lists:sort/1"</code></li></ul><p>Available·through·<a·href="../../../../erts-16.0/doc/html/erlang.html#trace/3"><code·class="inline">erlang:trace/3</code></a>·with·trace·flag·<code·class="inline">procs</code>·and | 152 | <p>All·tracepoints·are·in·the·domain·of·<code·class="inline">org_erlang_dyntrace</code></p><p>All·Erlang·types·are·the·string·equivalent·in·LTTng.</p><p><em>process_spawn</em></p><ul><li><code·class="inline">pid·:·string</code>·::·Process·ID.·Ex.·<code·class="inline">"<0.131.0>"</code></li><li><code·class="inline">parent·:·string</code>·::·Process·ID.·Ex.·<code·class="inline">"<0.131.0>"</code></li><li><code·class="inline">entry·:·string</code>·::·Code·Location.·Ex.·<code·class="inline">"lists:sort/1"</code></li></ul><p>Available·through·<a·href="../../../../erts-16.0/doc/html/erlang.html#trace/3"><code·class="inline">erlang:trace/3</code></a>·with·trace·flag·<code·class="inline">procs</code>·and |
| 153 | <code·class="inline">{tracer,dyntrace,[]}</code>·as·tracer·module.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">process_spawn</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id="2 | 153 | <code·class="inline">{tracer,dyntrace,[]}</code>·as·tracer·module.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">process_spawn</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id="2635989763-1">{</span><span·class="w">·</span><span·class="ss">cpu_id</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">3</span><span·class="w">·</span><span·class="p"·data-group-id="2635989763-1">}</span><span·c[·...·truncated·by·diffoscope;·len:·730,·SHA:·bde88133f4f3c455622e46603daa666863bc71ddfd06a5a17bb0461297632fb4·...·]-2">}</span></code></pre><p><em>process_link</em></p><ul><li><code·class="inline">to·:·string</code>·::·Process·ID·or·Port·ID.·Ex.·<code·class="inline">"<0.131.0>"</code></li><li><code·class="inline">from·:·string</code>·::·Process·ID·or·Port·ID.·Ex.·<code·class="inline">"<0.131.0>"</code></li><li><p><code·class="inline">type·:·string</code>·::·<code·class="inline">"link"·|·"unlink"</code></p></li></ul><p>Available·through·<a·href="../../../../erts-16.0/doc/html/erlang.html#trace/3"><code·class="inline">erlang:trace/3</code></a>·with·trace·flag·<code·class="inline">procs</code>·and |
| 154 | <code·class="inline">{tracer,dyntrace,[]}</code>·as·tracer·module.</p><p>Example:</p><pre><code·class="text">process_link:·{·cpu_id·=·3·},·{·from·=·"<0.130.0>",·to·=·"<0.131.0>",·type·=·"link"·}</code></pre><p><em>process_exit</em></p><ul><li><code·class="inline">pid·:·string</code>·::·Process·ID.·Ex.·<code·class="inline">"<0.131.0>"</code></li><li><code·class="inline">reason·:·string</code>·::·Exit·reason.·Ex.·<code·class="inline">"normal"</code></li></ul><p>Available·through·<a·href="../../../../erts-16.0/doc/html/erlang.html#trace/3"><code·class="inline">erlang:trace/3</code></a>·with·trace·flag·<code·class="inline">procs</code>·and | 154 | <code·class="inline">{tracer,dyntrace,[]}</code>·as·tracer·module.</p><p>Example:</p><pre><code·class="text">process_link:·{·cpu_id·=·3·},·{·from·=·"<0.130.0>",·to·=·"<0.131.0>",·type·=·"link"·}</code></pre><p><em>process_exit</em></p><ul><li><code·class="inline">pid·:·string</code>·::·Process·ID.·Ex.·<code·class="inline">"<0.131.0>"</code></li><li><code·class="inline">reason·:·string</code>·::·Exit·reason.·Ex.·<code·class="inline">"normal"</code></li></ul><p>Available·through·<a·href="../../../../erts-16.0/doc/html/erlang.html#trace/3"><code·class="inline">erlang:trace/3</code></a>·with·trace·flag·<code·class="inline">procs</code>·and |
| 155 | <code·class="inline">{tracer,dyntrace,[]}</code>·as·tracer·module.</p><p>Example:</p><pre><code·class="text">process_exit:·{·cpu_id·=·3·},·{·pid·=·"<0.130.0>",·reason·=·"normal"·}</code></pre><p><em>process_register</em></p><ul><li><code·class="inline">pid·:·string</code>·::·Process·ID.·Ex.·<code·class="inline">"<0.131.0>"</code></li><li><code·class="inline">name·:·string</code>·::·Registered·name.·Ex.·<code·class="inline">"logger"</code></li><li><p><code·class="inline">type·:·string</code>·::·<code·class="inline">"register"·|·"unregister"</code></p></li></ul><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">process_register</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id="0 | 155 | <code·class="inline">{tracer,dyntrace,[]}</code>·as·tracer·module.</p><p>Example:</p><pre><code·class="text">process_exit:·{·cpu_id·=·3·},·{·pid·=·"<0.130.0>",·reason·=·"normal"·}</code></pre><p><em>process_register</em></p><ul><li><code·class="inline">pid·:·string</code>·::·Process·ID.·Ex.·<code·class="inline">"<0.131.0>"</code></li><li><code·class="inline">name·:·string</code>·::·Registered·name.·Ex.·<code·class="inline">"logger"</code></li><li><p><code·class="inline">type·:·string</code>·::·<code·class="inline">"register"·|·"unregister"</code></p></li></ul><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">process_register</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id="0231623274-1">{</span><span·class="w">·</span><span·class="ss">cpu_id</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">0</span><span·class="w">·</span><span·class="p"·data-group-id="0231623274-1">}</span><span·c[·...·truncated·by·diffoscope;·len:·702,·SHA:·dae8f8a4c2061dc353ec2c7f2448bd3e06f029bb3abe7a65047fdd9f8c0479f6·...·]-2">}</span></code></pre><p><em>process_scheduled</em></p><ul><li><code·class="inline">pid·:·string</code>·::·Process·ID.·Ex.·<code·class="inline">"<0.131.0>"</code></li><li><code·class="inline">entry·:·string</code>·::·Code·Location.·Ex.·<code·class="inline">"lists:sort/1"</code></li><li><code·class="inline">type·:·string</code>·:: |
| 156 | <code·class="inline">"in"·|·"out"·|·"in_exiting"·|·"out_exiting"·|·"out_exited"</code></li></ul><p>Available·through·<a·href="../../../../erts-16.0/doc/html/erlang.html#trace/3"><code·class="inline">erlang:trace/3</code></a>·with·trace·flag·<code·class="inline">running</code>·and | 156 | <code·class="inline">"in"·|·"out"·|·"in_exiting"·|·"out_exiting"·|·"out_exited"</code></li></ul><p>Available·through·<a·href="../../../../erts-16.0/doc/html/erlang.html#trace/3"><code·class="inline">erlang:trace/3</code></a>·with·trace·flag·<code·class="inline">running</code>·and |
| 157 | <code·class="inline">{tracer,dyntrace,[]}</code>·as·tracer·module.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">process_scheduled</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id=" | 157 | <code·class="inline">{tracer,dyntrace,[]}</code>·as·tracer·module.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">process_scheduled</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id="7876906912-1">{</span><span·class="w">·</span><span·class="ss">cpu_id</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">0</span><span·class="w">·</span><span·class="p"·data-group-id="7876906912-1">}</span><span·[·...·truncated·by·diffoscope;·len:·716,·SHA:·21148b6d5b57da0fbf19845586e71f7f84fdce0c78e95a566d4586252dec873f·...·]-2">}</span></code></pre><p><em>port_open</em></p><ul><li><code·class="inline">pid·:·string</code>·::·Process·ID.·Ex.·<code·class="inline">"<0.131.0>"</code></li><li><code·class="inline">driver·:·string</code>·::·Driver·name.·Ex.·<code·class="inline">"tcp_inet"</code></li><li><code·class="inline">port·:·string</code>·::·Port·ID.·Ex.·<code·class="inline">"#Port<0.1031>"</code></li></ul><p>Available·through·<a·href="../../../../erts-16.0/doc/html/erlang.html#trace/3"><code·class="inline">erlang:trace/3</code></a>·with·trace·flag·<code·class="inline">ports</code>·and |
| 158 | <code·class="inline">{tracer,dyntrace,[]}</code>·as·tracer·module.</p><p>Example:</p><pre><code·class="text">port_open:·{·cpu_id·=·5·},·{·pid·=·"<0.131.0>",·driver·=·"'/bin/sh·-s·unix:cmd'",·port·=·"#Port<0.1887>"·}</code></pre><p><em>port_exit</em></p><ul><li><code·class="inline">port·:·string</code>·::·Port·ID.·Ex.·<code·class="inline">"#Port<0.1031>"</code></li><li><code·class="inline">reason·:·string</code>·::·Exit·reason.·Ex.·<code·class="inline">"normal"</code></li></ul><p>Available·through·<a·href="../../../../erts-16.0/doc/html/erlang.html#trace/3"><code·class="inline">erlang:trace/3</code></a>·with·trace·flag·<code·class="inline">ports</code>·and | 158 | <code·class="inline">{tracer,dyntrace,[]}</code>·as·tracer·module.</p><p>Example:</p><pre><code·class="text">port_open:·{·cpu_id·=·5·},·{·pid·=·"<0.131.0>",·driver·=·"'/bin/sh·-s·unix:cmd'",·port·=·"#Port<0.1887>"·}</code></pre><p><em>port_exit</em></p><ul><li><code·class="inline">port·:·string</code>·::·Port·ID.·Ex.·<code·class="inline">"#Port<0.1031>"</code></li><li><code·class="inline">reason·:·string</code>·::·Exit·reason.·Ex.·<code·class="inline">"normal"</code></li></ul><p>Available·through·<a·href="../../../../erts-16.0/doc/html/erlang.html#trace/3"><code·class="inline">erlang:trace/3</code></a>·with·trace·flag·<code·class="inline">ports</code>·and |
| 159 | <code·class="inline">{tracer,dyntrace,[]}</code>·as·tracer·module.</p><p>Example:</p><pre><code·class="text">port_exit:·{·cpu_id·=·5·},·{·port·=·"#Port<0.1887>",·reason·=·"normal"·}</code></pre><p><em>port_link</em></p><ul><li><code·class="inline">to·:·string</code>·::·Process·ID.·Ex.·<code·class="inline">"<0.131.0>"</code></li><li><code·class="inline">from·:·string</code>·::·Process·ID.·Ex.·<code·class="inline">"<0.131.0>"</code></li><li><p><code·class="inline">type·:·string</code>·::·<code·class="inline">"link"·|·"unlink"</code></p></li></ul><p>Available·through·<a·href="../../../../erts-16.0/doc/html/erlang.html#trace/3"><code·class="inline">erlang:trace/3</code></a>·with·trace·flag·<code·class="inline">ports</code>·and | 159 | <code·class="inline">{tracer,dyntrace,[]}</code>·as·tracer·module.</p><p>Example:</p><pre><code·class="text">port_exit:·{·cpu_id·=·5·},·{·port·=·"#Port<0.1887>",·reason·=·"normal"·}</code></pre><p><em>port_link</em></p><ul><li><code·class="inline">to·:·string</code>·::·Process·ID.·Ex.·<code·class="inline">"<0.131.0>"</code></li><li><code·class="inline">from·:·string</code>·::·Process·ID.·Ex.·<code·class="inline">"<0.131.0>"</code></li><li><p><code·class="inline">type·:·string</code>·::·<code·class="inline">"link"·|·"unlink"</code></p></li></ul><p>Available·through·<a·href="../../../../erts-16.0/doc/html/erlang.html#trace/3"><code·class="inline">erlang:trace/3</code></a>·with·trace·flag·<code·class="inline">ports</code>·and |
| 160 | <code·class="inline">{tracer,dyntrace,[]}</code>·as·tracer·module.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">port_link</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id=" | 160 | <code·class="inline">{tracer,dyntrace,[]}</code>·as·tracer·module.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">port_link</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id="3045175765-1">{</span><span·class="w">·</span><span·class="ss">cpu_id</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">5</span><span·class="w">·</span><span·class="p"·data-group-id="3045175765-1">}</span><span·[·...·truncated·by·diffoscope;·len:·723,·SHA:·1d399973afe66da54cce594adcd702193d5fcf289cb944adcf1733152a3bc752·...·]-2">}</span></code></pre><p><em>port_scheduled</em></p><p>Available·through·<a·href="../../../../erts-16.0/doc/html/erlang.html#trace/3"><code·class="inline">erlang:trace/3</code></a>·with·trace·flag·<code·class="inline">running</code>·and |
| 161 | <code·class="inline">{tracer,dyntrace,[]}</code>·as·tracer·module.</p><ul><li><code·class="inline">port·:·string</code>·::·Port·ID.·Ex.·<code·class="inline">"#Port<0.1031>"</code></li><li><code·class="inline">entry·:·string</code>·::·Callback.·Ex.·<code·class="inline">"open"</code></li><li><code·class="inline">type·:·string</code>·:: | 161 | <code·class="inline">{tracer,dyntrace,[]}</code>·as·tracer·module.</p><ul><li><code·class="inline">port·:·string</code>·::·Port·ID.·Ex.·<code·class="inline">"#Port<0.1031>"</code></li><li><code·class="inline">entry·:·string</code>·::·Callback.·Ex.·<code·class="inline">"open"</code></li><li><code·class="inline">type·:·string</code>·:: |
| 162 | <code·class="inline">"in"·|·"out"·|·"in_exiting"·|·"out_exiting"·|·"out_exited"</code></li></ul><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">port_scheduled</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id=" | 162 | <code·class="inline">"in"·|·"out"·|·"in_exiting"·|·"out_exiting"·|·"out_exited"</code></li></ul><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">port_scheduled</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id="9429800986-1">{</span><span·class="w">·</span><span·class="ss">cpu_id</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">5</span><span·class="w">·</span><span·class="p"·data-group-id="9429800986-1">}</span><span·[·...·truncated·by·diffoscope;·len:·712,·SHA:·c38b441bc46a6d622041f3b0df2a622dd4d7be6c80ea0b02600d26ee7af3c834·...·]-2">}</span></code></pre><p>Available·through·<a·href="../../../../erts-16.0/doc/html/erlang.html#trace/3"><code·class="inline">erlang:trace/3</code></a>·with·trace·flag·<code·class="inline">running</code>·and |
| 163 | <code·class="inline">{tracer,dyntrace,[]}</code>·as·tracer·module.</p><p><em>function_call</em></p><ul><li><code·class="inline">pid·:·string</code>·::·Process·ID.·Ex.·<code·class="inline">"<0.131.0>"</code></li><li><code·class="inline">entry·:·string</code>·::·Code·Location.·Ex.·<code·class="inline">"lists:sort/1"</code></li><li><code·class="inline">depth·:·integer</code>·::·Stack·depth.·Ex.·<code·class="inline">0</code></li></ul><p>Available·through·<a·href="../../../../erts-16.0/doc/html/erlang.html#trace/3"><code·class="inline">erlang:trace/3</code></a>·with·trace·flag·<code·class="inline">call</code>·and | 163 | <code·class="inline">{tracer,dyntrace,[]}</code>·as·tracer·module.</p><p><em>function_call</em></p><ul><li><code·class="inline">pid·:·string</code>·::·Process·ID.·Ex.·<code·class="inline">"<0.131.0>"</code></li><li><code·class="inline">entry·:·string</code>·::·Code·Location.·Ex.·<code·class="inline">"lists:sort/1"</code></li><li><code·class="inline">depth·:·integer</code>·::·Stack·depth.·Ex.·<code·class="inline">0</code></li></ul><p>Available·through·<a·href="../../../../erts-16.0/doc/html/erlang.html#trace/3"><code·class="inline">erlang:trace/3</code></a>·with·trace·flag·<code·class="inline">call</code>·and |
| 164 | <code·class="inline">{tracer,dyntrace,[]}</code>·as·tracer·module.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">function_call</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id=" | 164 | <code·class="inline">{tracer,dyntrace,[]}</code>·as·tracer·module.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">function_call</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id="3139182958-1">{</span><span·class="w">·</span><span·class="ss">cpu_id</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">5</span><span·class="w">·</span><span·class="p"·data-group-id="3139182958-1">}</span><span·[·...·truncated·by·diffoscope;·len:·739,·SHA:·26e50621efc6b0ee4fa16ce69b464677f99e4a7406035cd9112b1531a0043748·...·]8-2">}</span></code></pre><p><em>function_return</em></p><ul><li><code·class="inline">pid·:·string</code>·::·Process·ID.·Ex.·<code·class="inline">"<0.131.0>"</code></li><li><code·class="inline">entry·:·string</code>·::·Code·Location.·Ex.·<code·class="inline">"lists:sort/1"</code></li><li><code·class="inline">depth·:·integer</code>·::·Stack·depth.·Ex.·<code·class="inline">0</code></li></ul><p>Available·through·<a·href="../../../../erts-16.0/doc/html/erlang.html#trace/3"><code·class="inline">erlang:trace/3</code></a>·with·trace·flag·<code·class="inline">call</code>·or·<code·class="inline">return_to</code>·and |
| 165 | <code·class="inline">{tracer,dyntrace,[]}</code>·as·tracer·module.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">function_return</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id=" | 165 | <code·class="inline">{tracer,dyntrace,[]}</code>·as·tracer·module.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">function_return</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id="3981005079-1">{</span><span·class="w">·</span><span·class="ss">cpu_id</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">5</span><span·class="w">·</span><span·class="p"·data-group-id="3981005079-1">}</span><span·[·...·truncated·by·diffoscope;·len:·720,·SHA:·b31cba3b726547b1e0daafcc543ef895c040f339b54c4b6caaa51e076cf8bbd7·...·]-2">}</span></code></pre><p><em>function_exception</em></p><ul><li><code·class="inline">pid·:·string</code>·::·Process·ID.·Ex.·<code·class="inline">"<0.131.0>"</code></li><li><code·class="inline">entry·:·string</code>·::·Code·Location.·Ex.·<code·class="inline">"lists:sort/1"</code></li><li><code·class="inline">class·:·string</code>·::·Error·reason.·Ex.·<code·class="inline">"error"</code></li></ul><p>Available·through·<a·href="../../../../erts-16.0/doc/html/erlang.html#trace/3"><code·class="inline">erlang:trace/3</code></a>·with·trace·flag·<code·class="inline">call</code>·and |
| 166 | <code·class="inline">{tracer,dyntrace,[]}</code>·as·tracer·module.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">function_exception</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id=" | 166 | <code·class="inline">{tracer,dyntrace,[]}</code>·as·tracer·module.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">function_exception</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id="4966367453-1">{</span><span·class="w">·</span><span·class="ss">cpu_id</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">5</span><span·class="w">·</span><span·class="p"·data-group-id="4966367453-1">}</span><span·[·...·truncated·by·diffoscope;·len:·718,·SHA:·8e6c38d9513e7d55db62a556a8852a48404c3979703bb1ad9a99c84cc92e5e66·...·]-2">}</span></code></pre><p><em>message_send</em></p><ul><li><code·class="inline">from·:·string</code>·::·Process·ID·or·Port·ID.·Ex.·<code·class="inline">"<0.131.0>"</code></li><li><code·class="inline">to·:·string</code>·::·Process·ID·or·Port·ID.·Ex.·<code·class="inline">"<0.131.0>"</code></li><li><code·class="inline">message·:·string</code>·::·Message·sent.·Ex.·<code·class="inline">"{<0.162.0>,ok}"</code></li></ul><p>Available·through·<a·href="../../../../erts-16.0/doc/html/erlang.html#trace/3"><code·class="inline">erlang:trace/3</code></a>·with·trace·flag·<code·class="inline">send</code>·and |
| 167 | <code·class="inline">{tracer,dyntrace,[]}</code>·as·tracer·module.</p><p>Example:</p><pre><code·class="text">message_send:·{·cpu_id·=·3·},·{·from·=·"#Port<0.1938>",·to·=·"<0.160.0>",·message·=·"{#Port<0.1938>,eof}"·}</code></pre><p><em>message_receive</em></p><ul><li><code·class="inline">to·:·string</code>·::·Process·ID·or·Port·ID.·Ex.·<code·class="inline">"<0.131.0>"</code></li><li><code·class="inline">message·:·string</code>·::·Message·received.·Ex.·<code·class="inline">"{<0.162.0>,ok}"</code></li></ul><p>Available·through·<a·href="../../../../erts-16.0/doc/html/erlang.html#trace/3"><code·class="inline">erlang:trace/3</code></a>·with·trace·flag·<code·class="inline">'receive'</code>·and | 167 | <code·class="inline">{tracer,dyntrace,[]}</code>·as·tracer·module.</p><p>Example:</p><pre><code·class="text">message_send:·{·cpu_id·=·3·},·{·from·=·"#Port<0.1938>",·to·=·"<0.160.0>",·message·=·"{#Port<0.1938>,eof}"·}</code></pre><p><em>message_receive</em></p><ul><li><code·class="inline">to·:·string</code>·::·Process·ID·or·Port·ID.·Ex.·<code·class="inline">"<0.131.0>"</code></li><li><code·class="inline">message·:·string</code>·::·Message·received.·Ex.·<code·class="inline">"{<0.162.0>,ok}"</code></li></ul><p>Available·through·<a·href="../../../../erts-16.0/doc/html/erlang.html#trace/3"><code·class="inline">erlang:trace/3</code></a>·with·trace·flag·<code·class="inline">'receive'</code>·and |
| 168 | <code·class="inline">{tracer,dyntrace,[]}</code>·as·tracer·module.</p><p>Example:</p><pre><code·class="text">message_receive:·{·cpu_id·=·7·},·{·to·=·"<0.167.0>",·message·=·"{<0.165.0>,ok}"·}</code></pre><p><em>gc_minor_start</em></p><ul><li><code·class="inline">pid·:·string</code>·::·Process·ID.·Ex.·<code·class="inline">"<0.131.0>"</code></li><li><code·class="inline">need·:·integer</code>·::·Heap·need.·Ex.·<code·class="inline">2</code></li><li><code·class="inline">heap·:·integer</code>·::·Young·heap·word·size.·Ex.·<code·class="inline">233</code></li><li><code·class="inline">old_heap·:·integer</code>·::·Old·heap·word·size.·Ex.·<code·class="inline">233</code></li></ul><p>Available·through·<a·href="../../../../erts-16.0/doc/html/erlang.html#trace/3"><code·class="inline">erlang:trace/3</code></a>·with·trace·flag·<code·class="inline">garbage_collection</code>·and | 168 | <code·class="inline">{tracer,dyntrace,[]}</code>·as·tracer·module.</p><p>Example:</p><pre><code·class="text">message_receive:·{·cpu_id·=·7·},·{·to·=·"<0.167.0>",·message·=·"{<0.165.0>,ok}"·}</code></pre><p><em>gc_minor_start</em></p><ul><li><code·class="inline">pid·:·string</code>·::·Process·ID.·Ex.·<code·class="inline">"<0.131.0>"</code></li><li><code·class="inline">need·:·integer</code>·::·Heap·need.·Ex.·<code·class="inline">2</code></li><li><code·class="inline">heap·:·integer</code>·::·Young·heap·word·size.·Ex.·<code·class="inline">233</code></li><li><code·class="inline">old_heap·:·integer</code>·::·Old·heap·word·size.·Ex.·<code·class="inline">233</code></li></ul><p>Available·through·<a·href="../../../../erts-16.0/doc/html/erlang.html#trace/3"><code·class="inline">erlang:trace/3</code></a>·with·trace·flag·<code·class="inline">garbage_collection</code>·and |
| 169 | <code·class="inline">{tracer,dyntrace,[]}</code>·as·tracer·module.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">gc_minor_start</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id=" | 169 | <code·class="inline">{tracer,dyntrace,[]}</code>·as·tracer·module.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">gc_minor_start</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id="7310927086-1">{</span><span·class="w">·</span><span·class="ss">cpu_id</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">0</span><span·class="w">·</span><span·class="p"·data-group-id="7310927086-1">}</span><span·[·...·truncated·by·diffoscope;·len:·858,·SHA:·1fec22fcde8f80f73a5ece9d9a032353a0bad524ef6919f309d59e6145de2ef6·...·]-2">}</span></code></pre><p><em>gc_minor_end</em></p><ul><li><code·class="inline">pid·:·string</code>·::·Process·ID.·Ex.·<code·class="inline">"<0.131.0>"</code></li><li><code·class="inline">reclaimed·:·integer</code>·::·Heap·reclaimed.·Ex.·<code·class="inline">2</code></li><li><code·class="inline">heap·:·integer</code>·::·Young·heap·word·size.·Ex.·<code·class="inline">233</code></li><li><code·class="inline">old_heap·:·integer</code>·::·Old·heap·word·size.·Ex.·<code·class="inline">233</code></li></ul><p>Available·through·<a·href="../../../../erts-16.0/doc/html/erlang.html#trace/3"><code·class="inline">erlang:trace/3</code></a>·with·trace·flag·<code·class="inline">garbage_collection</code>·and |
| 170 | <code·class="inline">{tracer,dyntrace,[]}</code>·as·tracer·module.</p><p>Example:</p><pre><code·class="c">gc_minor_end:·{·cpu_id·=·0·},·{·pid·=·"<0.172.0>",·reclaimed·=·120,·heap·=·1598,·old_heap·=·1598·}</code></pre><p><em>gc_major_start</em></p><ul><li><code·class="inline">pid·:·string</code>·::·Process·ID.·Ex.·<code·class="inline">"<0.131.0>"</code></li><li><code·class="inline">need·:·integer</code>·::·Heap·need.·Ex.·<code·class="inline">2</code></li><li><code·class="inline">heap·:·integer</code>·::·Young·heap·word·size.·Ex.·<code·class="inline">233</code></li><li><code·class="inline">old_heap·:·integer</code>·::·Old·heap·word·size.·Ex.·<code·class="inline">233</code></li></ul><p>Available·through·<a·href="../../../../erts-16.0/doc/html/erlang.html#trace/3"><code·class="inline">erlang:trace/3</code></a>·with·trace·flag·<code·class="inline">garbage_collection</code>·and | 170 | <code·class="inline">{tracer,dyntrace,[]}</code>·as·tracer·module.</p><p>Example:</p><pre><code·class="c">gc_minor_end:·{·cpu_id·=·0·},·{·pid·=·"<0.172.0>",·reclaimed·=·120,·heap·=·1598,·old_heap·=·1598·}</code></pre><p><em>gc_major_start</em></p><ul><li><code·class="inline">pid·:·string</code>·::·Process·ID.·Ex.·<code·class="inline">"<0.131.0>"</code></li><li><code·class="inline">need·:·integer</code>·::·Heap·need.·Ex.·<code·class="inline">2</code></li><li><code·class="inline">heap·:·integer</code>·::·Young·heap·word·size.·Ex.·<code·class="inline">233</code></li><li><code·class="inline">old_heap·:·integer</code>·::·Old·heap·word·size.·Ex.·<code·class="inline">233</code></li></ul><p>Available·through·<a·href="../../../../erts-16.0/doc/html/erlang.html#trace/3"><code·class="inline">erlang:trace/3</code></a>·with·trace·flag·<code·class="inline">garbage_collection</code>·and |
| 171 | <code·class="inline">{tracer,dyntrace,[]}</code>·as·tracer·module.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">gc_major_start</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id=" | 171 | <code·class="inline">{tracer,dyntrace,[]}</code>·as·tracer·module.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">gc_major_start</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id="4033843281-1">{</span><span·class="w">·</span><span·class="ss">cpu_id</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">0</span><span·class="w">·</span><span·class="p"·data-group-id="4033843281-1">}</span><span·[·...·truncated·by·diffoscope;·len:·862,·SHA:·7b619f03a178d6606f4ab6950685d9046b1ebda39c2695a9a5c9c9e3d511a5ca·...·]-2">}</span></code></pre><p><em>gc_major_end</em></p><ul><li><code·class="inline">pid·:·string</code>·::·Process·ID.·Ex.·<code·class="inline">"<0.131.0>"</code></li><li><code·class="inline">reclaimed·:·integer</code>·::·Heap·reclaimed.·Ex.·<code·class="inline">2</code></li><li><code·class="inline">heap·:·integer</code>·::·Young·heap·word·size.·Ex.·<code·class="inline">233</code></li><li><code·class="inline">old_heap·:·integer</code>·::·Old·heap·word·size.·Ex.·<code·class="inline">233</code></li></ul><p>Available·through·<a·href="../../../../erts-16.0/doc/html/erlang.html#trace/3"><code·class="inline">erlang:trace/3</code></a>·with·trace·flag·<code·class="inline">garbage_collection</code>·and |
| 172 | <code·class="inline">{tracer,dyntrace,[]}</code>·as·tracer·module.</p><p>Example:</p><pre><code·class="text">gc_major_end:·{·cpu_id·=·0·},·{·pid·=·"<0.172.0>",·reclaimed·=·240,·heap·=·4185,·old_heap·=·0·}</code></pre><h2·id="beam-tracepoints"·class="section-heading"> | 172 | <code·class="inline">{tracer,dyntrace,[]}</code>·as·tracer·module.</p><p>Example:</p><pre><code·class="text">gc_major_end:·{·cpu_id·=·0·},·{·pid·=·"<0.172.0>",·reclaimed·=·240,·heap·=·4185,·old_heap·=·0·}</code></pre><h2·id="beam-tracepoints"·class="section-heading"> |
| 173 | ··<a·href="#beam-tracepoints"·class="hover-link"> | 173 | ··<a·href="#beam-tracepoints"·class="hover-link"> |
| 174 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 174 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 175 | ··</a> | 175 | ··</a> |
| 176 | ··<span·class="text">BEAM·Tracepoints</span> | 176 | ··<span·class="text">BEAM·Tracepoints</span> |
| 177 | </h2> | 177 | </h2> |
| 178 | <p>All·tracepoints·are·in·the·domain·of·<code·class="inline">org_erlang_otp</code></p><p>All·Erlang·types·are·the·string·equivalent·in·LTTng.</p><p><em>driver_init</em></p><ul><li><code·class="inline">driver·:·string</code>·::·Driver·name.·Ex.·<code·class="inline">"tcp_inet"</code></li><li><code·class="inline">major·:·integer</code>·::·Major·version.·Ex.·<code·class="inline">3</code></li><li><code·class="inline">minor·:·integer</code>·::·Minor·version.·Ex.·<code·class="inline">1</code></li><li><code·class="inline">flags·:·integer</code>·::·Flags.·Ex.·<code·class="inline">1</code></li></ul><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">driver_init</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id=" | 178 | <p>All·tracepoints·are·in·the·domain·of·<code·class="inline">org_erlang_otp</code></p><p>All·Erlang·types·are·the·string·equivalent·in·LTTng.</p><p><em>driver_init</em></p><ul><li><code·class="inline">driver·:·string</code>·::·Driver·name.·Ex.·<code·class="inline">"tcp_inet"</code></li><li><code·class="inline">major·:·integer</code>·::·Major·version.·Ex.·<code·class="inline">3</code></li><li><code·class="inline">minor·:·integer</code>·::·Minor·version.·Ex.·<code·class="inline">1</code></li><li><code·class="inline">flags·:·integer</code>·::·Flags.·Ex.·<code·class="inline">1</code></li></ul><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">driver_init</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id="4753315760-1">{</span><span·class="w">·</span><span·class="ss">cpu_id</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">2</span><span·class="w">·</span><span·class="p"·data-group-id="4753315760-1">}</span><span·[·...·truncated·by·diffoscope;·len:·19389,·SHA:·cb95c4aff57080b496518ee5a0a831febe95acb4759a0f9c3b2efb2419789a45·...·]-2">}</span></code></pre><p><em>carrier_create</em></p><ul><li><code·class="inline">type·:·string</code>·::·Carrier·type.·Ex.·<code·class="inline">"ets_alloc"</code></li><li><code·class="inline">instance·:·integer</code>·::·Allocator·instance.·Ex.·<code·class="inline">1</code></li><li><code·class="inline">size·:·integer</code>·::·Carrier·size.·Ex.·<code·class="inline">262144</code></li><li><code·class="inline">mbc_carriers·:·integer</code>·::·Number·of·multiblock·carriers·in·instance.·Ex.·<code·class="inline">3</code></li><li><code·class="inline">mbc_carriers_size·:·integer</code>·::·Total·size·of·multiblock·blocks·carriers·in |
| 179 | instance.·Ex.·<code·class="inline">1343488</code></li><li><code·class="inline">mbc_blocks·:·integer</code>·::·Number·of·multiblock·blocks·in·instance.·Ex.·<code·class="inline">122</code></li><li><code·class="inline">mbc_blocks_size·:·integer</code>·::·Total·size·of·all·multiblock·blocks·in | 179 | instance.·Ex.·<code·class="inline">1343488</code></li><li><code·class="inline">mbc_blocks·:·integer</code>·::·Number·of·multiblock·blocks·in·instance.·Ex.·<code·class="inline">122</code></li><li><code·class="inline">mbc_blocks_size·:·integer</code>·::·Total·size·of·all·multiblock·blocks·in |
| 180 | instance.·Ex.·<code·class="inline">285296</code></li><li><code·class="inline">sbc_carriers·:·integer</code>·::·Number·of·singleblock·carriers·in·instance.·Ex. | 180 | instance.·Ex.·<code·class="inline">285296</code></li><li><code·class="inline">sbc_carriers·:·integer</code>·::·Number·of·singleblock·carriers·in·instance.·Ex. |
| 181 | <code·class="inline">1</code></li><li><code·class="inline">sbc_carriers_size·:·integer</code>·::·Total·size·of·singleblock·blocks·carriers·in | 181 | <code·class="inline">1</code></li><li><code·class="inline">sbc_carriers_size·:·integer</code>·::·Total·size·of·singleblock·blocks·carriers·in |
| 182 | instance.·Ex.·<code·class="inline">1343488</code></li><li><code·class="inline">sbc_blocks·:·integer</code>·::·Number·of·singleblocks·in·instance.·Ex.·<code·class="inline">1</code></li><li><code·class="inline">sbc_blocks_size·:·integer</code>·::·Total·size·of·all·singleblock·blocks·in | 182 | instance.·Ex.·<code·class="inline">1343488</code></li><li><code·class="inline">sbc_blocks·:·integer</code>·::·Number·of·singleblocks·in·instance.·Ex.·<code·class="inline">1</code></li><li><code·class="inline">sbc_blocks_size·:·integer</code>·::·Total·size·of·all·singleblock·blocks·in |
| 183 | instance.·Ex.·<code·class="inline">285296</code></li></ul><p>Example:</p><pre><code·class="c">carrier_create:·{·cpu_id·=·2·},·{·type·=·"ets_alloc",·instance·=·7,·size·=·2097152,·mbc_carriers·=·4,·mbc_carriers_size·=·3440640,·mbc_blocks·=·526,·mbc_blocks_size·=·1278576,·sbc_carriers·=·0,·sbc_carriers_size·=·0,·sbc_blocks·=·0,·sbc_blocks_size·=·0·}</code></pre><p><em>carrier_destroy</em></p><ul><li><code·class="inline">type·:·string</code>·::·Carrier·type.·Ex.·<code·class="inline">"ets_alloc"</code></li><li><code·class="inline">instance·:·integer</code>·::·Allocator·instance.·Ex.·<code·class="inline">1</code></li><li><code·class="inline">size·:·integer</code>·::·Carrier·size.·Ex.·<code·class="inline">262144</code></li><li><code·class="inline">mbc_carriers·:·integer</code>·::·Number·of·multiblock·carriers·in·instance.·Ex.·<code·class="inline">3</code></li><li><code·class="inline">mbc_carriers_size·:·integer</code>·::·Total·size·of·multiblock·blocks·carriers·in | 183 | instance.·Ex.·<code·class="inline">285296</code></li></ul><p>Example:</p><pre><code·class="c">carrier_create:·{·cpu_id·=·2·},·{·type·=·"ets_alloc",·instance·=·7,·size·=·2097152,·mbc_carriers·=·4,·mbc_carriers_size·=·3440640,·mbc_blocks·=·526,·mbc_blocks_size·=·1278576,·sbc_carriers·=·0,·sbc_carriers_size·=·0,·sbc_blocks·=·0,·sbc_blocks_size·=·0·}</code></pre><p><em>carrier_destroy</em></p><ul><li><code·class="inline">type·:·string</code>·::·Carrier·type.·Ex.·<code·class="inline">"ets_alloc"</code></li><li><code·class="inline">instance·:·integer</code>·::·Allocator·instance.·Ex.·<code·class="inline">1</code></li><li><code·class="inline">size·:·integer</code>·::·Carrier·size.·Ex.·<code·class="inline">262144</code></li><li><code·class="inline">mbc_carriers·:·integer</code>·::·Number·of·multiblock·carriers·in·instance.·Ex.·<code·class="inline">3</code></li><li><code·class="inline">mbc_carriers_size·:·integer</code>·::·Total·size·of·multiblock·blocks·carriers·in |
| 184 | instance.·Ex.·<code·class="inline">1343488</code></li><li><code·class="inline">mbc_blocks·:·integer</code>·::·Number·of·multiblock·blocks·in·instance.·Ex.·<code·class="inline">122</code></li><li><code·class="inline">mbc_blocks_size·:·integer</code>·::·Total·size·of·all·multiblock·blocks·in | 184 | instance.·Ex.·<code·class="inline">1343488</code></li><li><code·class="inline">mbc_blocks·:·integer</code>·::·Number·of·multiblock·blocks·in·instance.·Ex.·<code·class="inline">122</code></li><li><code·class="inline">mbc_blocks_size·:·integer</code>·::·Total·size·of·all·multiblock·blocks·in |
| 185 | instance.·Ex.·<code·class="inline">285296</code></li><li><code·class="inline">sbc_carriers·:·integer</code>·::·Number·of·singleblock·carriers·in·instance.·Ex. | 185 | instance.·Ex.·<code·class="inline">285296</code></li><li><code·class="inline">sbc_carriers·:·integer</code>·::·Number·of·singleblock·carriers·in·instance.·Ex. |
| Offset 194, 18 lines modified | Offset 194, 18 lines modified | ||
| 194 | <p>An·example·of·process·tracing·of·<code·class="inline">os_mon</code>·and·friends.</p><p>Clean·start·of·lttng·in·a·bash·shell.</p><pre><code·class="text">$·lttng·create·erlang-demo | 194 | <p>An·example·of·process·tracing·of·<code·class="inline">os_mon</code>·and·friends.</p><p>Clean·start·of·lttng·in·a·bash·shell.</p><pre><code·class="text">$·lttng·create·erlang-demo |
| 195 | Spawning·a·session·daemon | 195 | Spawning·a·session·daemon |
| 196 | Session·erlang-demo·created. | 196 | Session·erlang-demo·created. |
| 197 | Traces·will·be·written·in·/home/egil/lttng-traces/erlang-demo-20160526-165920</code></pre><p>Start·an·Erlang·node·with·lttng·enabled.</p><pre><code·class="text">$·erl | 197 | Traces·will·be·written·in·/home/egil/lttng-traces/erlang-demo-20160526-165920</code></pre><p>Start·an·Erlang·node·with·lttng·enabled.</p><pre><code·class="text">$·erl |
| 198 | Erlang/OTP·19·[erts-8.0]·[source-4d7b24d]·[64-bit]·[smp:8:8]·[async-threads:10]·[hipe]·[kernel-poll:false]·[lttng] | 198 | Erlang/OTP·19·[erts-8.0]·[source-4d7b24d]·[64-bit]·[smp:8:8]·[async-threads:10]·[hipe]·[kernel-poll:false]·[lttng] |
| 199 | Eshell·V8.0··(abort·with·^G) | 199 | Eshell·V8.0··(abort·with·^G) |
| 200 | 1></code></pre><p>Load·the·<code·class="inline">dyntrace</code>·module.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nf">l</span><span·class="p"·data-group-id="6 | 200 | 1></code></pre><p>Load·the·<code·class="inline">dyntrace</code>·module.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nf">l</span><span·class="p"·data-group-id="6597270320-1">(</span><span·class="ss">dyntrace</span><span·class="p"·data-group-id="6597270320-1">)</span><span·class="p">.</span><span·class="w"> |
| 201 | </span><span·class="p"·data-group-id="6 | 201 | </span><span·class="p"·data-group-id="6597270320-2">{</span><span·class="ss">module</span><span·class="p">,</span><span·class="ss">dyntrace</span><span·class="p"·data-group-id="6597270320-2">}</span></code></pre><p>All·tracepoints·via·dyntrace·are·now·visible·and·can·be·listed·through |
| 202 | <code·class="inline">lttng·list·-u</code>.</p><p>Enable·the·process_register·LTTng·tracepoint·for·Erlang.</p><pre><code·class="text">$·lttng·enable-event·-u·org_erlang_dyntrace:process_register | 202 | <code·class="inline">lttng·list·-u</code>.</p><p>Enable·the·process_register·LTTng·tracepoint·for·Erlang.</p><pre><code·class="text">$·lttng·enable-event·-u·org_erlang_dyntrace:process_register |
| 203 | UST·event·org_erlang_dyntrace:process_register·created·in·channel·channel0</code></pre><p>Enable·process·tracing·for·new·processes·and·use·<code·class="inline">dyntrace</code>·as·tracer·backend.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">2>·</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">trace</span><span·class="p"·data-group-id=" | 203 | UST·event·org_erlang_dyntrace:process_register·created·in·channel·channel0</code></pre><p>Enable·process·tracing·for·new·processes·and·use·<code·class="inline">dyntrace</code>·as·tracer·backend.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">2>·</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">trace</span><span·class="p"·data-group-id="1088343971-1">(</span><span·class="ss">new</span><span·class="p">,</span><span·class="ss">true</span><span·class="p">,</span><span·class="p"·data-group-id="1088343971-2">[</span><span·class="ss">procs</span><span·class="p">,</span><span·class="p"·data-grou[·...·truncated·by·diffoscope;·len:·391,·SHA:·42f712ed52956a5c596fb8b5ae924e0b00734c27e9859c374cae33590cb55a65·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 204 | </span><span·class="mi">0</span></code></pre><p>Start·LTTng·tracing.</p><pre><code·class="text">$·lttng·start | 204 | </span><span·class="mi">0</span></code></pre><p>Start·LTTng·tracing.</p><pre><code·class="text">$·lttng·start |
| 205 | Tracing·started·for·session·erlang-demo</code></pre><p>Start·the·<code·class="inline">os_mon</code>·application·in·Erlang.</p><pre><code·class="text">3>·application:ensure_all_started(os_mon). | 205 | Tracing·started·for·session·erlang-demo</code></pre><p>Start·the·<code·class="inline">os_mon</code>·application·in·Erlang.</p><pre><code·class="text">3>·application:ensure_all_started(os_mon). |
| 206 | {ok,[sasl,os_mon]}</code></pre><p>Stop·LTTng·tracing·and·view·the·result.</p><pre><code·class="text">$·lttng·stop | 206 | {ok,[sasl,os_mon]}</code></pre><p>Stop·LTTng·tracing·and·view·the·result.</p><pre><code·class="text">$·lttng·stop |
| 207 | Tracing·stopped·for·session·erlang-demo | 207 | Tracing·stopped·for·session·erlang-demo |
| 208 | $·lttng·view | 208 | $·lttng·view |
| 209 | [17:20:42.561168759]·(+?.?????????)·elxd1168lx9·org_erlang_dyntrace:process_register:·\ | 209 | [17:20:42.561168759]·(+?.?????????)·elxd1168lx9·org_erlang_dyntrace:process_register:·\ |
| 210 | ····{·cpu_id·=·5·},·{·pid·=·"<0.66.0>",·name·=·"sasl_sup",·type·=·"register"·} | 210 | ····{·cpu_id·=·5·},·{·pid·=·"<0.66.0>",·name·=·"sasl_sup",·type·=·"register"·} |
| Offset 271, 15 lines modified | Offset 271, 15 lines modified | ||
| 271 | ······<p·class="built-using"> | 271 | ······<p·class="built-using"> |
| 272 | ········Built·using | 272 | ········Built·using |
| 273 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 273 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 274 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 274 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 275 | ······</p> | 275 | ······</p> |
| 276 | <p>Copyright·©·1996-202 | 276 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 277 | ····</footer> | 277 | ····</footer> |
| 278 | ··</div> | 278 | ··</div> |
| 279 | </main> | 279 | </main> |
| 280 | </div> | 280 | </div> |
| 281 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 281 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 282 | ··<script> | 282 | ··<script> |
| 283 | ··let·initialized·=·false; | 283 | ··let·initialized·=·false; |
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| 127 | ··</h1> | 127 | ··</h1> |
| 128 | ····<section·id="moduledoc"> | 128 | ····<section·id="moduledoc"> |
| 129 | <p>Convenience·functions·for·microstate·accounting</p><p>This·module·implements·some·convenience·functions·for·analyzing·microstate | 129 | <p>Convenience·functions·for·microstate·accounting</p><p>This·module·implements·some·convenience·functions·for·analyzing·microstate |
| 130 | accounting·data.·For·details·about·how·to·use·the·basic·API·and·what·the | 130 | accounting·data.·For·details·about·how·to·use·the·basic·API·and·what·the |
| 131 | different·states·represent,·see | 131 | different·states·represent,·see |
| 132 | <a·href="../../../../erts-16.0/doc/html/erlang.html#statistics_microstate_accounting"><code·class="inline">erlang:statistics(microstate_accounting)</code></a>.</p><p><a·href=""·id="msacc_print_example"></a></p><p><em>Basic·Scenario</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">msacc</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id=" | 132 | <a·href="../../../../erts-16.0/doc/html/erlang.html#statistics_microstate_accounting"><code·class="inline">erlang:statistics(microstate_accounting)</code></a>.</p><p><a·href=""·id="msacc_print_example"></a></p><p><em>Basic·Scenario</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">msacc</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id="5420314655-1">(</span><span·class="mi">1000</span><span·class="p"·data-group-id="5420314655-1">)</span><span·class="p">.</span><span·class="w"> |
| 133 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> | 133 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> |
| 134 | 2>·</span><span·class="nc">msacc</span><span·class="p">:</span><span·class="nf">print</span><span·class="p"·data-group-id=" | 134 | 2>·</span><span·class="nc">msacc</span><span·class="p">:</span><span·class="nf">print</span><span·class="p"·data-group-id="5420314655-2">(</span><span·class="p"·data-group-id="5420314655-2">)</span><span·class="p">.</span><span·class="w"> |
| 135 | </span><span·class="n">Average</span><span·class="w">·</span><span·class="ss">thread</span><span·class="w">·</span><span·class="ss">real</span><span·class="o">-</span><span·class="ss">time</span><span·class="w">····</span><span·class="p">:</span><span·class="w">·</span><span·class="mi">1000513</span><span·class="w">·</span><span·class="ss">us</span><span·class="w"> | 135 | </span><span·class="n">Average</span><span·class="w">·</span><span·class="ss">thread</span><span·class="w">·</span><span·class="ss">real</span><span·class="o">-</span><span·class="ss">time</span><span·class="w">····</span><span·class="p">:</span><span·class="w">·</span><span·class="mi">1000513</span><span·class="w">·</span><span·class="ss">us</span><span·class="w"> |
| 136 | </span><span·class="n">Accumulated</span><span·class="w">·</span><span·class="ss">system</span><span·class="w">·</span><span·class="ss">run</span><span·class="o">-</span><span·class="ss">time</span><span·class="w">·</span><span·class="p">:</span><span·class="w">····</span><span·class="mi">2213</span><span·class="w">·</span><span·class="ss">us</span><span·class="w"> | 136 | </span><span·class="n">Accumulated</span><span·class="w">·</span><span·class="ss">system</span><span·class="w">·</span><span·class="ss">run</span><span·class="o">-</span><span·class="ss">time</span><span·class="w">·</span><span·class="p">:</span><span·class="w">····</span><span·class="mi">2213</span><span·class="w">·</span><span·class="ss">us</span><span·class="w"> |
| 137 | </span><span·class="n">Average</span><span·class="w">·</span><span·class="ss">scheduler</span><span·class="w">·</span><span·class="ss">run</span><span·class="o">-</span><span·class="ss">time</span><span·class="w">··</span><span·class="p">:</span><span·class="w">····</span><span·class="mi">1076</span><span·class="w">·</span><span·class="ss">us</span><span·class="w"> | 137 | </span><span·class="n">Average</span><span·class="w">·</span><span·class="ss">scheduler</span><span·class="w">·</span><span·class="ss">run</span><span·class="o">-</span><span·class="ss">time</span><span·class="w">··</span><span·class="p">:</span><span·class="w">····</span><span·class="mi">1076</span><span·class="w">·</span><span·class="ss">us</span><span·class="w"> |
| 138 | ········</span><span·class="n">Thread</span><span·class="w">······</span><span·class="ss">aux</span><span·class="w">·</span><span·class="ss">check_io</span><span·class="w">·</span><span·class="ss">emulator</span><span·class="w">·······</span><span·class="ss">gc</span><span·class="w">····</span><span·class="ss">other</span><span·class="w">·····</span><span·class="ss">port</span><span·class="w">····</span><span·class="ss">sleep</span><span·class="w"> | 138 | ········</span><span·class="n">Thread</span><span·class="w">······</span><span·class="ss">aux</span><span·class="w">·</span><span·class="ss">check_io</span><span·class="w">·</span><span·class="ss">emulator</span><span·class="w">·······</span><span·class="ss">gc</span><span·class="w">····</span><span·class="ss">other</span><span·class="w">·····</span><span·class="ss">port</span><span·class="w">····</span><span·class="ss">sleep</span><span·class="w"> |
| 139 | </span><span·class="n">Stats</span><span·class="w">·</span><span·class="ss">per</span><span·class="w">·</span><span·class="nc">thread</span><span·class="p">:</span><span·class="w"> | 139 | </span><span·class="n">Stats</span><span·class="w">·</span><span·class="ss">per</span><span·class="w">·</span><span·class="nc">thread</span><span·class="p">:</span><span·class="w"> |
| 140 | ·····</span><span·class="nf">async</span><span·class="p"·data-group-id=" | 140 | ·····</span><span·class="nf">async</span><span·class="p"·data-group-id="5420314655-3">(</span><span·class="w">·</span><span·class="mi">0</span><span·class="p"·data-group-id="5420314655-3">)</span><span·class="w">····</span><span·class="mf">0.00</span><span·class="c1">%····0.00%····0.00%····0.00%····0.00%····0.00%··100.00%</span><span·class="w"> |
| 141 | ·····</span><span·class="nf">async</span><span·class="p"·data-group-id=" | 141 | ·····</span><span·class="nf">async</span><span·class="p"·data-group-id="5420314655-4">(</span><span·class="w">·</span><span·class="mi">1</span><span·class="p"·data-group-id="5420314655-4">)</span><span·class="w">····</span><span·class="mf">0.00</span><span·class="c1">%····0.00%····0.00%····0.00%····0.00%····0.00%··100.00%</span><span·class="w"> |
| 142 | ·······</span><span·class="nf">aux</span><span·class="p"·data-group-id=" | 142 | ·······</span><span·class="nf">aux</span><span·class="p"·data-group-id="5420314655-5">(</span><span·class="w">·</span><span·class="mi">1</span><span·class="p"·data-group-id="5420314655-5">)</span><span·class="w">····</span><span·class="mf">0.00</span><span·class="c1">%····0.00%····0.00%····0.00%····0.00%····0.00%···99.99%</span><span·class="w"> |
| 143 | ·</span><span·class="nf">scheduler</span><span·class="p"·data-group-id=" | 143 | ·</span><span·class="nf">scheduler</span><span·class="p"·data-group-id="5420314655-6">(</span><span·class="w">·</span><span·class="mi">1</span><span·class="p"·data-group-id="5420314655-6">)</span><span·class="w">····</span><span·class="mf">0.00</span><span·class="c1">%····0.03%····0.13%····0.00%····0.01%····0.00%···99.82%</span><span·class="w"> |
| 144 | ·</span><span·class="nf">scheduler</span><span·class="p"·data-group-id=" | 144 | ·</span><span·class="nf">scheduler</span><span·class="p"·data-group-id="5420314655-7">(</span><span·class="w">·</span><span·class="mi">2</span><span·class="p"·data-group-id="5420314655-7">)</span><span·class="w">····</span><span·class="mf">0.00</span><span·class="c1">%····0.00%····0.00%····0.00%····0.03%····0.00%···99.97%</span><span·class="w"> |
| 145 | </span><span·class="n">Stats</span><span·class="w">·</span><span·class="ss">per</span><span·class="w">·</span><span·class="nc">type</span><span·class="p">:</span><span·class="w"> | 145 | </span><span·class="n">Stats</span><span·class="w">·</span><span·class="ss">per</span><span·class="w">·</span><span·class="nc">type</span><span·class="p">:</span><span·class="w"> |
| 146 | ·········</span><span·class="ss">async</span><span·class="w">····</span><span·class="mf">0.00</span><span·class="c1">%····0.00%····0.00%····0.00%····0.00%····0.00%··100.00%</span><span·class="w"> | 146 | ·········</span><span·class="ss">async</span><span·class="w">····</span><span·class="mf">0.00</span><span·class="c1">%····0.00%····0.00%····0.00%····0.00%····0.00%··100.00%</span><span·class="w"> |
| 147 | ···········</span><span·class="ss">aux</span><span·class="w">····</span><span·class="mf">0.00</span><span·class="c1">%····0.00%····0.00%····0.00%····0.00%····0.00%···99.99%</span><span·class="w"> | 147 | ···········</span><span·class="ss">aux</span><span·class="w">····</span><span·class="mf">0.00</span><span·class="c1">%····0.00%····0.00%····0.00%····0.00%····0.00%···99.99%</span><span·class="w"> |
| 148 | ·····</span><span·class="ss">scheduler</span><span·class="w">····</span><span·class="mf">0.00</span><span·class="c1">%····0.02%····0.06%····0.00%····0.02%····0.00%···99.89%</span><span·class="w"> | 148 | ·····</span><span·class="ss">scheduler</span><span·class="w">····</span><span·class="mf">0.00</span><span·class="c1">%····0.02%····0.06%····0.00%····0.02%····0.00%···99.89%</span><span·class="w"> |
| 149 | </span><span·class="ss">ok</span></code></pre><p>This·first·command·enables·microstate·accounting·for·1000·milliseconds.·See | 149 | </span><span·class="ss">ok</span></code></pre><p>This·first·command·enables·microstate·accounting·for·1000·milliseconds.·See |
| 150 | <a·href="#start/0"><code·class="inline">start/0</code></a>,·<a·href="#stop/0"><code·class="inline">stop/0</code></a>,·<a·href="#reset/0"><code·class="inline">reset/0</code></a>,·and·<a·href="#start/1"><code·class="inline">start/1</code></a>·for·more·details.·The·second | 150 | <a·href="#start/0"><code·class="inline">start/0</code></a>,·<a·href="#stop/0"><code·class="inline">stop/0</code></a>,·<a·href="#reset/0"><code·class="inline">reset/0</code></a>,·and·<a·href="#start/1"><code·class="inline">start/1</code></a>·for·more·details.·The·second |
| Offset 911, 15 lines modified | Offset 911, 15 lines modified | ||
| 911 | ······</div> | 911 | ······</div> |
| 912 | <p>Print·the·given·microstate·statistics·values·to·standard·out.·With·many·states | 912 | <p>Print·the·given·microstate·statistics·values·to·standard·out.·With·many·states |
| 913 | this·can·be·verbose.·See·the·top·of·this·reference·manual·for·a·brief | 913 | this·can·be·verbose.·See·the·top·of·this·reference·manual·for·a·brief |
| 914 | description·of·what·the·fields·mean.</p><p>It·is·possible·to·print·more·specific·types·of·statistics·by·first·manipulating | 914 | description·of·what·the·fields·mean.</p><p>It·is·possible·to·print·more·specific·types·of·statistics·by·first·manipulating |
| 915 | the·<code·class="inline">DataOrStats</code>·using·<a·href="#stats/2"><code·class="inline">stats/2</code></a>.·For·instance·if·you·want·to·print·the | 915 | the·<code·class="inline">DataOrStats</code>·using·<a·href="#stats/2"><code·class="inline">stats/2</code></a>.·For·instance·if·you·want·to·print·the |
| 916 | percentage·of·run-time·for·each·thread·you·can·do:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">msacc</span><span·class="p">:</span><span·class="nf">print</span><span·class="p"·data-group-id=" | 916 | percentage·of·run-time·for·each·thread·you·can·do:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">msacc</span><span·class="p">:</span><span·class="nf">print</span><span·class="p"·data-group-id="4938511633-1">(</span><span·class="nc">msacc</span><span·class="p">:</span><span·class="nf">stats</span><span·class="p"·data-group-id="4938511633-2">(</span><span·class="ss">runtime</span><span·class="p">,</span><span·class="w">·</span><span·class="nc">msa[·...·truncated·by·diffoscope;·len:·1322,·SHA:·f34d7a8abcfd9d676b93f4cc6c4df723bbf7981cd3889ebc29296641aa6b8c77·...·]0-1">)</span><span·class="p">.</span></code></pre><p><em>Options</em></p><ul><li><strong><code·class="inline">system</code></strong>·-·Print·percentage·of·time·spent·in·each·state·out·of·system·time |
| 917 | as·well·as·thread·time.·Default:·false.</li></ul> | 917 | as·well·as·thread·time.·Default:·false.</li></ul> |
| 918 | ··</section> | 918 | ··</section> |
| 919 | </section> | 919 | </section> |
| 920 | <section·class="detail"·id="print/3"> | 920 | <section·class="detail"·id="print/3"> |
| 921 | ··<div·class="detail-header"> | 921 | ··<div·class="detail-header"> |
| 922 | ····<a·href="#print/3"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 922 | ····<a·href="#print/3"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| Offset 1186, 15 lines modified | Offset 1186, 15 lines modified | ||
| 1186 | ······<p·class="built-using"> | 1186 | ······<p·class="built-using"> |
| 1187 | ········Built·using | 1187 | ········Built·using |
| 1188 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1188 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1189 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1189 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1190 | ······</p> | 1190 | ······</p> |
| 1191 | <p>Copyright·©·1996-202 | 1191 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1192 | ····</footer> | 1192 | ····</footer> |
| 1193 | ··</div> | 1193 | ··</div> |
| 1194 | </main> | 1194 | </main> |
| 1195 | </div> | 1195 | </div> |
| 1196 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1196 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1197 | ··<script> | 1197 | ··<script> |
| 1198 | ··let·initialized·=·false; | 1198 | ··let·initialized·=·false; |
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| 133 | </h2> | 133 | </h2> |
| 134 | <h3·id="improvements-and-new-features"·class="section-heading"> | 134 | <h3·id="improvements-and-new-features"·class="section-heading"> |
| 135 | ··<a·href="#improvements-and-new-features"·class="hover-link"> | 135 | ··<a·href="#improvements-and-new-features"·class="hover-link"> |
| 136 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 136 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 137 | ··</a> | 137 | ··</a> |
| 138 | ··<span·class="text">Improvements·and·New·Features</span> | 138 | ··<span·class="text">Improvements·and·New·Features</span> |
| 139 | </h3> | 139 | </h3> |
| 140 | <ul><li><p><a·href="https://www.erlang.org/eeps/eep-0069">EEP-69:·Nominal·Types</a>·has·been·implemented.·As·a·side·effect,·nominal·types·can·encode·opaque·types.·We·changed·all·opaque-handling·logic·and·improved·opaque·warnings·in·Dialyzer.</p><p>All·existing·Erlang·type·systems·are·structural:·two·types·are·seen·as·equivalent·if·their·structures·are·the·same.·Type·comparisons·are·based·on·the·structures·of·the·types,·not·on·how·the·user·explicitly·defines·them.·For·example,·in·the·following·example,·<code·class="inline">meter()</code>·and·<code·class="inline">foot()</code>·are·equivalent.·The·two·types·can·be·used·interchangeably.·Neither·of·them·differ·from·the·basic·type·<code·class="inline">integer()</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">type</span><span·class="w">·</span><span·class="nf">meter</span><span·class="p"·data-group-id=" | 140 | <ul><li><p><a·href="https://www.erlang.org/eeps/eep-0069">EEP-69:·Nominal·Types</a>·has·been·implemented.·As·a·side·effect,·nominal·types·can·encode·opaque·types.·We·changed·all·opaque-handling·logic·and·improved·opaque·warnings·in·Dialyzer.</p><p>All·existing·Erlang·type·systems·are·structural:·two·types·are·seen·as·equivalent·if·their·structures·are·the·same.·Type·comparisons·are·based·on·the·structures·of·the·types,·not·on·how·the·user·explicitly·defines·them.·For·example,·in·the·following·example,·<code·class="inline">meter()</code>·and·<code·class="inline">foot()</code>·are·equivalent.·The·two·types·can·be·used·interchangeably.·Neither·of·them·differ·from·the·basic·type·<code·class="inline">integer()</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">type</span><span·class="w">·</span><span·class="nf">meter</span><span·class="p"·data-group-id="9799694094-1">(</span><span·class="p"·data-group-id="9799694094-1">)</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="9799694094-2">(</span><[·...·truncated·by·diffoscope;·len:·40,·SHA:·f1c8b6023f017f61be0024b5fd21913eb7c79fb2cd4991c33ebaa92ff0cede59·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 141 | </span><span·class="p">-</span><span·class="na">type</span><span·class="w">·</span><span·class="nf">foot</span><span·class="p"·data-group-id=" | 141 | </span><span·class="p">-</span><span·class="na">type</span><span·class="w">·</span><span·class="nf">foot</span><span·class="p"·data-group-id="9799694094-3">(</span><span·class="p"·data-group-id="9799694094-3">)</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="9799694094-4">(</span><[·...·truncated·by·diffoscope;·len:·1061,·SHA:·60d8ba20d76cd856acd3f9960f59fee90121b15854b9d2865c164548a2e670ba·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 142 | </span><span·class="p">-</span><span·class="na">nominal</span><span·class="w">·</span><span·class="nf">foot</span><span·class="p"·data-group-id=" | 142 | </span><span·class="p">-</span><span·class="na">nominal</span><span·class="w">·</span><span·class="nf">foot</span><span·class="p"·data-group-id="8854052372-3">(</span><span·class="p"·data-group-id="8854052372-3">)</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="8854052372-4">(</span><[·...·truncated·by·diffoscope;·len:·40,·SHA:·6c327bc56cb89aa4f3ff15596b982b526a238073d411fc39f4d4fa4728b53eec·...·]-4">)</span><span·class="p">.</span></code></pre><p>More·nominal·type-checking·rules·can·be·found·in·the·EEP.·It·is·worth·noting·that·most·work·for·adding·nominal·types·and·type-checking·is·in·<code·class="inline">erl_types.erl</code>.·The·rest·are·changes·that·removed·the·previous·opaque·type-checking,·and·added·an·improved·version·of·it·using·nominal·type-checking·with·reworked·warnings.</p><p>Backwards·compatibility·for·opaque·type-checking·is·not·preserved·by·this·PR.·Previous·opaque·warnings·can·appear·with·slightly·different·wordings.·A·new·kind·of·opaque·warning·<code·class="inline">opaque_union</code>·is·added,·together·with·a·Dialyzer·option·<code·class="inline">no_opaque_union</code>·to·turn·this·kind·of·warnings·off.</p><p>Own·Id:·OTP-19364·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9079"·title="">PR-9079</a></p></li><li><p>When·compiling·C/C++·code·on·Unix·systems,·the·compiler·hardening·flags·suggested·by·the·<a·href="https://github.com/ossf/wg-best-practices-os-developers/blob/main/docs/Compiler-Hardening-Guides/Compiler-Options-Hardening-Guide-for-C-and-C%2B%2B.md">Open·Source·Security·Foundation</a>·are·now·enabled·by·default.·To·disable·them,·pass·<code·class="inline">--disable-security-hardening-flags</code>·to·<code·class="inline">configure</code>.</p><p>Own·Id:·OTP-19519·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9441"·title="">PR-9441</a></p></li><li><p>The·license·and·copyright·header·has·changed·format·to·include·an·<code·class="inline">SPDX-License-Identifier</code>.·At·the·same·time,·most·files·have·been·updated·to·follow·a·uniform·standard·for·license·headers.</p><p>Own·Id:·OTP-19575·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9670"·title="">PR-9670</a></p></li><li><p>With·this·change·observer·will·use·cheaper·iterators·to·avoid·locking·when·not·necessary.</p><p>Own·Id:·OTP-19584·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9711"·title="">PR-9711</a></p></li></ul><h2·id="runtime_tools-2-1-1"·class="section-heading"> |
| 143 | ··<a·href="#runtime_tools-2-1-1"·class="hover-link"> | 143 | ··<a·href="#runtime_tools-2-1-1"·class="hover-link"> |
| 144 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 144 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 145 | ··</a> | 145 | ··</a> |
| 146 | ··<span·class="text">Runtime_Tools·2.1.1</span> | 146 | ··<span·class="text">Runtime_Tools·2.1.1</span> |
| 147 | </h2> | 147 | </h2> |
| 148 | <h3·id="fixed-bugs-and-malfunctions"·class="section-heading"> | 148 | <h3·id="fixed-bugs-and-malfunctions"·class="section-heading"> |
| 149 | ··<a·href="#fixed-bugs-and-malfunctions"·class="hover-link"> | 149 | ··<a·href="#fixed-bugs-and-malfunctions"·class="hover-link"> |
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| 1290 | ········Built·using | 1290 | ········Built·using |
| 1291 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1291 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1292 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1292 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1293 | ······</p> | 1293 | ······</p> |
| 1294 | <p>Copyright·©·1996-202 | 1294 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1295 | ····</footer> | 1295 | ····</footer> |
| 1296 | ··</div> | 1296 | ··</div> |
| 1297 | </main> | 1297 | </main> |
| 1298 | </div> | 1298 | </div> |
| 1299 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1299 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1300 | ··<script> | 1300 | ··<script> |
| 1301 | ··let·initialized·=·false; | 1301 | ··let·initialized·=·false; |
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| 191 | ······<p·class="built-using"> | 191 | ······<p·class="built-using"> |
| 192 | ········Built·using | 192 | ········Built·using |
| 193 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 193 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 194 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 194 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 195 | ······</p> | 195 | ······</p> |
| 196 | <p>Copyright·©·1996-202 | 196 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 197 | ····</footer> | 197 | ····</footer> |
| 198 | ··</div> | 198 | ··</div> |
| 199 | </main> | 199 | </main> |
| 200 | </div> | 200 | </div> |
| 201 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 201 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 202 | ··<script> | 202 | ··<script> |
| 203 | ··let·initialized·=·false; | 203 | ··let·initialized·=·false; |
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| 591 | ······</div> | 591 | ······</div> |
| 592 | <p>Measure·utilization·for·normal·and·dirty-cpu·schedulers·during·<code·class="inline">Seconds</code> | 592 | <p>Measure·utilization·for·normal·and·dirty-cpu·schedulers·during·<code·class="inline">Seconds</code> |
| 593 | seconds,·and·then·return·the·result.</p><p>Will·automatically·first·enable·and·then·disable | 593 | seconds,·and·then·return·the·result.</p><p>Will·automatically·first·enable·and·then·disable |
| 594 | <a·href="../../../../erts-16.0/doc/html/erlang.html#system_flag_scheduler_wall_time"><code·class="inline">scheduler_wall_time</code></a>.</p><p>Calculate·scheduler·utilizations·for·the·time·interval·from·when·<code·class="inline">Sample</code>·was | 594 | <a·href="../../../../erts-16.0/doc/html/erlang.html#system_flag_scheduler_wall_time"><code·class="inline">scheduler_wall_time</code></a>.</p><p>Calculate·scheduler·utilizations·for·the·time·interval·from·when·<code·class="inline">Sample</code>·was |
| 595 | taken·and·"now".·The·same·as·calling | 595 | taken·and·"now".·The·same·as·calling |
| 596 | <code·class="inline">scheduler:utilization(Sample,·scheduler:sample_all())</code>.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>This·function·is·<em>not·recommended</em>·as·it's·so·easy·to·get·invalid·results | 596 | <code·class="inline">scheduler:utilization(Sample,·scheduler:sample_all())</code>.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>This·function·is·<em>not·recommended</em>·as·it's·so·easy·to·get·invalid·results |
| 597 | without·noticing.·In·particular·do·not·do·this:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">scheduler</span><span·class="p">:</span><span·class="nf">utilization</span><span·class="p"·data-group-id=" | 597 | without·noticing.·In·particular·do·not·do·this:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">scheduler</span><span·class="p">:</span><span·class="nf">utilization</span><span·class="p"·data-group-id="2985924257-1">(</span><span·class="nc">scheduler</span><span·class="p">:</span><span·class="nf">sample</span><span·class="p"·data-group-id="2985924257-2">(</span><span·class="p"·data-group-id="2985924257-2">)</span><span·class="p"·data-group-id="2985924257-1">)</span><span·class="p">.</span><span·class="w">·</span><span·class="c1">%·DO·NOT·DO·THIS!</span></code></pre><p>The·above·example·takes·two·samples·in·rapid·succession·and·calculates·the |
| 598 | scheduler·utilization·between·them.·The·resulting·values·will·probably·be·more | 598 | scheduler·utilization·between·them.·The·resulting·values·will·probably·be·more |
| 599 | misleading·than·informative.</p><p>Instead·use·<a·href="#utilization/2"><code·class="inline">scheduler:utilization/2</code></a>·and·call | 599 | misleading·than·informative.</p><p>Instead·use·<a·href="#utilization/2"><code·class="inline">scheduler:utilization/2</code></a>·and·call |
| 600 | <a·href="#get_sample/0"><code·class="inline">get_sample/0</code></a>·to·get·samples·with·some·time·in·between.</p></section> | 600 | <a·href="#get_sample/0"><code·class="inline">get_sample/0</code></a>·to·get·samples·with·some·time·in·between.</p></section> |
| 601 | ··</section> | 601 | ··</section> |
| 602 | </section> | 602 | </section> |
| 603 | <section·class="detail"·id="utilization/2"> | 603 | <section·class="detail"·id="utilization/2"> |
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| 659 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 659 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 660 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 660 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 661 | ······</p> | 661 | ······</p> |
| 662 | <p>Copyright·©·1996-202 | 662 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 663 | ····</footer> | 663 | ····</footer> |
| 664 | ··</div> | 664 | ··</div> |
| 665 | </main> | 665 | </main> |
| 666 | </div> | 666 | </div> |
| 667 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 667 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 668 | ··<script> | 668 | ··<script> |
| 669 | ··let·initialized·=·false; | 669 | ··let·initialized·=·false; |
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| 144 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 144 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 145 | ······</p> | 145 | ······</p> |
| 146 | <p>Copyright·©·1996-202 | 146 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 147 | ····</footer> | 147 | ····</footer> |
| 148 | ··</div> | 148 | ··</div> |
| 149 | </main> | 149 | </main> |
| 150 | </div> | 150 | </div> |
| 151 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 151 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 152 | ··<script> | 152 | ··<script> |
| 153 | ··let·initialized·=·false; | 153 | ··let·initialized·=·false; |
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| 293 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 293 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 294 | ······</p> | 294 | ······</p> |
| 295 | <p>Copyright·©·1996-202 | 295 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 296 | ····</footer> | 296 | ····</footer> |
| 297 | ··</div> | 297 | ··</div> |
| 298 | </main> | 298 | </main> |
| 299 | </div> | 299 | </div> |
| 300 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 300 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 211 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 211 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 212 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 212 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 213 | ······</p> | 213 | ······</p> |
| 214 | <p>Copyright·©·1996-202 | 214 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 215 | ····</footer> | 215 | ····</footer> |
| 216 | ··</div> | 216 | ··</div> |
| 217 | </main> | 217 | </main> |
| 218 | </div> | 218 | </div> |
| 219 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 219 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 220 | ··<script> | 220 | ··<script> |
| 221 | ··let·initialized·=·false; | 221 | ··let·initialized·=·false; |
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| 145 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 145 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 146 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 146 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 147 | ······</p> | 147 | ······</p> |
| 148 | <p>Copyright·©·1996-202 | 148 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 149 | ····</footer> | 149 | ····</footer> |
| 150 | ··</div> | 150 | ··</div> |
| 151 | </main> | 151 | </main> |
| 152 | </div> | 152 | </div> |
| 153 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 153 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 154 | ··<script> | 154 | ··<script> |
| 155 | ··let·initialized·=·false; | 155 | ··let·initialized·=·false; |
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| 404 | ······<p·class="built-using"> | 404 | ······<p·class="built-using"> |
| 405 | ········Built·using | 405 | ········Built·using |
| 406 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 406 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 407 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 407 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 408 | ······</p> | 408 | ······</p> |
| 409 | <p>Copyright·©·1996-202 | 409 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 410 | ····</footer> | 410 | ····</footer> |
| 411 | ··</div> | 411 | ··</div> |
| 412 | </main> | 412 | </main> |
| 413 | </div> | 413 | </div> |
| 414 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 414 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 415 | ··<script> | 415 | ··<script> |
| 416 | ··let·initialized·=·false; | 416 | ··let·initialized·=·false; |
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| 208 | ······<p·class="built-using"> | 208 | ······<p·class="built-using"> |
| 209 | ········Built·using | 209 | ········Built·using |
| 210 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 210 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 211 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 211 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 212 | ······</p> | 212 | ······</p> |
| 213 | <p>Copyright·©·1996-202 | 213 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 214 | ····</footer> | 214 | ····</footer> |
| 215 | ··</div> | 215 | ··</div> |
| 216 | </main> | 216 | </main> |
| 217 | </div> | 217 | </div> |
| 218 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 218 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 219 | ··<script> | 219 | ··<script> |
| 220 | ··let·initialized·=·false; | 220 | ··let·initialized·=·false; |
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| 216 | that·is,·if·a·process·using·the·module·spontaneously·switches·to·new·code,·or | 216 | that·is,·if·a·process·using·the·module·spontaneously·switches·to·new·code,·or |
| 217 | if·it·is·"static".·When·doing·an·advanced·update·and·upgrade,·the·new·version | 217 | if·it·is·"static".·When·doing·an·advanced·update·and·upgrade,·the·new·version |
| 218 | of·a·dynamic·module·is·loaded·before·the·process·is·asked·to·change·code.·When | 218 | of·a·dynamic·module·is·loaded·before·the·process·is·asked·to·change·code.·When |
| 219 | downgrading,·the·process·is·asked·to·change·code·before·loading·the·new | 219 | downgrading,·the·process·is·asked·to·change·code·before·loading·the·new |
| 220 | version.·For·static·modules,·the·new·version·is·loaded·before·the·process·is | 220 | version.·For·static·modules,·the·new·version·is·loaded·before·the·process·is |
| 221 | asked·to·change·code,·both·in·the·case·of·upgrading·and·downgrading.·Callback | 221 | asked·to·change·code,·both·in·the·case·of·upgrading·and·downgrading.·Callback |
| 222 | modules·are·dynamic.</p></li></ul><p><code·class="inline">update</code>·with·argument·<code·class="inline">supervisor</code>·is·used·when·changing·the·start | 222 | modules·are·dynamic.</p></li></ul><p><code·class="inline">update</code>·with·argument·<code·class="inline">supervisor</code>·is·used·when·changing·the·start |
| 223 | specification·of·a·supervisor.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 223 | specification·of·a·supervisor.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="1341524289-1">{</span><span·class="nb">load_module</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Mod</span><span·class="p"·data-group-id="1341524289-1">}</span><span·class="w"> |
| 224 | </span><span·class="p"·data-group-id=" | 224 | </span><span·class="p"·data-group-id="1341524289-2">{</span><span·class="nb">load_module</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Mod</span><span·class="p">,</span><span·class="w">·</span><span·class="n">DepMods</span><span·class="p"·data-group-id="1341524289-2">}</span><span·class="w"> |
| 225 | </span><span·class="p"·data-group-id=" | 225 | </span><span·class="p"·data-group-id="1341524289-3">{</span><span·class="nb">load_module</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Mod</span><span·class="p">,</span><span·class="w">·</span><span·class="n">PrePurge</span><span·class="p">,</span><span·class="w">·</spa[·...·truncated·by·diffoscope;·len:·153,·SHA:·17a468d6bbf0a19df71f0c5cc0264bfc348ba5a377e4babbbb74eeb63665d051·...·]-3">}</span><span·class="w"> |
| 226 | ··</span><span·class="n">Mod</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">atom</span><span·class="p"·data-group-id=" | 226 | ··</span><span·class="n">Mod</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">atom</span><span·class="p"·data-group-id="1341524289-4">(</span><span·class="p"·data-group-id="1341524289-4">)</span><span·class="w"> |
| 227 | ··</span><span·class="n">PrePurge</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">PostPurge</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">soft_purge</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">brutal_purge</span><span·class="w"> | 227 | ··</span><span·class="n">PrePurge</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">PostPurge</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">soft_purge</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">brutal_purge</span><span·class="w"> |
| 228 | ··</span><span·class="n">DepMods</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 228 | ··</span><span·class="n">DepMods</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="1341524289-5">[</span><span·class="n">Mod</span><span·class="p"·data-group-id="1341524289-5">]</span></code></pre><p>Simple·code·replacement·of·the·module·<code·class="inline">Mod</code>.</p><p>For·a·description·of·<code·class="inline">PrePurge</code>·and·<code·class="inline">PostPurge</code>,·see·<code·class="inline">update</code>·above.</p><p><code·class="inline">DepMods</code>·defaults·to·<code·class="inline">[]</code>·and·defines·which·other·modules·<code·class="inline">Mod</code>·is·dependent |
| 229 | on.·In·the·<code·class="inline">relup</code>·file,·instructions·for·loading·these·modules·come·before·the | 229 | on.·In·the·<code·class="inline">relup</code>·file,·instructions·for·loading·these·modules·come·before·the |
| 230 | instruction·for·loading·<code·class="inline">Mod</code>·when·upgrading,·and·conversely·when·downgrading.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 230 | instruction·for·loading·<code·class="inline">Mod</code>·when·upgrading,·and·conversely·when·downgrading.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="7104587173-1">{</span><span·class="ss">add_module</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Mod</span><span·class="p"·data-group-id="7104587173-1">}</span><span·class="w"> |
| 231 | </span><span·class="p"·data-group-id=" | 231 | </span><span·class="p"·data-group-id="7104587173-2">{</span><span·class="ss">add_module</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Mod</span><span·class="p">,</span><span·class="w">·</span><span·class="n">DepMods</span><span·class="p"·data-group-id="7104587173-2">}</span><span·class="w"> |
| 232 | ··</span><span·class="n">Mod</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">atom</span><span·class="p"·data-group-id=" | 232 | ··</span><span·class="n">Mod</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">atom</span><span·class="p"·data-group-id="7104587173-3">(</span><span·class="p"·data-group-id="7104587173-3">)</span><span·class="w"> |
| 233 | ··</span><span·class="n">DepMods</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 233 | ··</span><span·class="n">DepMods</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="7104587173-4">[</span><span·class="n">Mod</span><span·class="p"·data-group-id="7104587173-4">]</span></code></pre><p>Loads·a·new·module·<code·class="inline">Mod</code>.</p><p><code·class="inline">DepMods</code>·defaults·to·<code·class="inline">[]</code>·and·defines·which·other·modules·<code·class="inline">Mod</code>·is·dependent |
| 234 | on.·In·the·<code·class="inline">relup</code>·file,·instructions·related·to·these·modules·come·before·the | 234 | on.·In·the·<code·class="inline">relup</code>·file,·instructions·related·to·these·modules·come·before·the |
| 235 | instruction·for·loading·<code·class="inline">Mod</code>·when·upgrading,·and·conversely·when·downgrading.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="8 | 235 | instruction·for·loading·<code·class="inline">Mod</code>·when·upgrading,·and·conversely·when·downgrading.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="1080125445-1">{</span><span·class="nb">delete_module</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Mod</span><span·class="p"·data-group-id="1080125445-1">}</span><span·class="w"> |
| 236 | </span><span·class="p"·data-group-id="8 | 236 | </span><span·class="p"·data-group-id="1080125445-2">{</span><span·class="nb">delete_module</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Mod</span><span·class="p">,</span><span·class="w">·</span><span·class="n">DepMods</span><span·class="p"·data-group-id="1080125445-2">}</span><span·class="w"> |
| 237 | ··</span><span·class="n">Mod</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">atom</span><span·class="p"·data-group-id="8 | 237 | ··</span><span·class="n">Mod</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">atom</span><span·class="p"·data-group-id="1080125445-3">(</span><span·class="p"·data-group-id="1080125445-3">)</span></code></pre><p>Deletes·a·module·<code·class="inline">Mod</code>·using·the·low-level·instructions·<code·class="inline">remove</code>·and·<code·class="inline">purge</code>.</p><p><code·class="inline">DepMods</code>·defaults·to·<code·class="inline">[]</code>·and·defines·which·other·modules·<code·class="inline">Mod</code>·is·dependent |
| 238 | on.·In·the·<code·class="inline">relup</code>·file,·instructions·related·to·these·modules·come·before·the | 238 | on.·In·the·<code·class="inline">relup</code>·file,·instructions·related·to·these·modules·come·before·the |
| 239 | instruction·for·removing·<code·class="inline">Mod</code>·when·upgrading,·and·conversely·when·downgrading.</p><pre><code·class="text">{add_application,·Application} | 239 | instruction·for·removing·<code·class="inline">Mod</code>·when·upgrading,·and·conversely·when·downgrading.</p><pre><code·class="text">{add_application,·Application} |
| 240 | {add_application,·Application,·Type} | 240 | {add_application,·Application,·Type} |
| 241 | ··Application·=·atom() | 241 | ··Application·=·atom() |
| 242 | ··Type·=·permanent·|·transient·|·temporary·|·load·|·none</code></pre><p>Adding·an·application·means·that·the·modules·defined·by·the·<code·class="inline">modules</code>·key·in·the | 242 | ··Type·=·permanent·|·transient·|·temporary·|·load·|·none</code></pre><p>Adding·an·application·means·that·the·modules·defined·by·the·<code·class="inline">modules</code>·key·in·the |
| 243 | <code·class="inline">.app</code>·file·are·loaded·using·<code·class="inline">add_module</code>.</p><p><code·class="inline">Type</code>·defaults·to·<code·class="inline">permanent</code>·and·specifies·the·start·type·of·the·application. | 243 | <code·class="inline">.app</code>·file·are·loaded·using·<code·class="inline">add_module</code>.</p><p><code·class="inline">Type</code>·defaults·to·<code·class="inline">permanent</code>·and·specifies·the·start·type·of·the·application. |
| 244 | If·<code·class="inline">Type·=·permanent·|·transient·|·temporary</code>,·the·application·is·loaded·and | 244 | If·<code·class="inline">Type·=·permanent·|·transient·|·temporary</code>,·the·application·is·loaded·and |
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| 257 | application·is·not·loaded·and·not·started,·although·the·code·for·its·modules·is | 257 | application·is·not·loaded·and·not·started,·although·the·code·for·its·modules·is |
| 258 | loaded.</p><h3·id="low-level-instructions"·class="section-heading"> | 258 | loaded.</p><h3·id="low-level-instructions"·class="section-heading"> |
| 259 | ··<a·href="#low-level-instructions"·class="hover-link"> | 259 | ··<a·href="#low-level-instructions"·class="hover-link"> |
| 260 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 260 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 261 | ··</a> | 261 | ··</a> |
| 262 | ··<span·class="text">Low-Level·Instructions</span> | 262 | ··<span·class="text">Low-Level·Instructions</span> |
| 263 | </h3> | 263 | </h3> |
| 264 | <pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 264 | <pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="4610143752-1">{</span><span·class="ss">load_object_code</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4610143752-2">{</span><span·class="n">App</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Vsn[·...·truncated·by·diffoscope;·len:·281,·SHA:·7e8e31282c3a9f9abf0bb780de72006fb8fb165e58cb9c098fd907cc01054684·...·]-1">}</span><span·class="w"> |
| 265 | ··</span><span·class="n">App</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">Mod</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">atom</span><span·class="p"·data-group-id=" | 265 | ··</span><span·class="n">App</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">Mod</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">atom</span><span·class="p"·data-group-id="4610143752-4">(</span><span·class="p"·data-group-id="4610143752-4">)</span><span·class="w"> |
| 266 | ··</span><span·class="n">Vsn</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">string</span><span·class="p"·data-group-id=" | 266 | ··</span><span·class="n">Vsn</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">string</span><span·class="p"·data-group-id="4610143752-5">(</span><span·class="p"·data-group-id="4610143752-5">)</span></code></pre><p>Reads·each·<code·class="inline">Mod</code>·from·directory·<code·class="inline">App-Vsn/ebin</code>·as·a·binary.·It·does·not·load·the |
| 267 | modules.·The·instruction·is·to·be·placed·first·in·the·script·to·read·all·new | 267 | modules.·The·instruction·is·to·be·placed·first·in·the·script·to·read·all·new |
| 268 | code·from·the·file·to·make·the·suspend-load-resume·cycle·less·time-consuming.</p><pre><code·class="text">point_of_no_return</code></pre><p>If·a·crash·occurs·after·this·instruction,·the·system·cannot·recover·and·is | 268 | code·from·the·file·to·make·the·suspend-load-resume·cycle·less·time-consuming.</p><pre><code·class="text">point_of_no_return</code></pre><p>If·a·crash·occurs·after·this·instruction,·the·system·cannot·recover·and·is |
| 269 | restarted·from·the·old·release·version.·The·instruction·must·only·occur·once·in | 269 | restarted·from·the·old·release·version.·The·instruction·must·only·occur·once·in |
| 270 | a·script.·It·is·to·be·placed·after·all·<code·class="inline">load_object_code</code>·instructions.</p><pre><code·class="text">{load,·{Mod,·PrePurge,·PostPurge}} | 270 | a·script.·It·is·to·be·placed·after·all·<code·class="inline">load_object_code</code>·instructions.</p><pre><code·class="text">{load,·{Mod,·PrePurge,·PostPurge}} |
| 271 | ··Mod·=·atom() | 271 | ··Mod·=·atom() |
| 272 | ··PrePurge·=·PostPurge·=·soft_purge·|·brutal_purge</code></pre><p>Before·this·instruction·occurs,·<code·class="inline">Mod</code>·must·have·been·loaded·using | 272 | ··PrePurge·=·PostPurge·=·soft_purge·|·brutal_purge</code></pre><p>Before·this·instruction·occurs,·<code·class="inline">Mod</code>·must·have·been·loaded·using |
| 273 | <code·class="inline">load_object_code</code>.·This·instruction·loads·the·module.·<code·class="inline">PrePurge</code>·is·ignored. | 273 | <code·class="inline">load_object_code</code>.·This·instruction·loads·the·module.·<code·class="inline">PrePurge</code>·is·ignored. |
| 274 | For·a·description·of·<code·class="inline">PostPurge</code>,·see·the·high-level·instruction·<code·class="inline">update</code> | 274 | For·a·description·of·<code·class="inline">PostPurge</code>,·see·the·high-level·instruction·<code·class="inline">update</code> |
| 275 | earlier.</p><pre><code·class="text">{remove,·{Mod,·PrePurge,·PostPurge}} | 275 | earlier.</p><pre><code·class="text">{remove,·{Mod,·PrePurge,·PostPurge}} |
| 276 | ··Mod·=·atom() | 276 | ··Mod·=·atom() |
| 277 | ··PrePurge·=·PostPurge·=·soft_purge·|·brutal_purge</code></pre><p>Makes·the·current·version·of·<code·class="inline">Mod</code>·old.·<code·class="inline">PrePurge</code>·is·ignored.·For·a·description | 277 | ··PrePurge·=·PostPurge·=·soft_purge·|·brutal_purge</code></pre><p>Makes·the·current·version·of·<code·class="inline">Mod</code>·old.·<code·class="inline">PrePurge</code>·is·ignored.·For·a·description |
| 278 | of·<code·class="inline">PostPurge</code>,·see·the·high-level·instruction·<code·class="inline">update</code>·earlier.</p><pre><code·class="text">{purge,·[Mod]} | 278 | of·<code·class="inline">PostPurge</code>,·see·the·high-level·instruction·<code·class="inline">update</code>·earlier.</p><pre><code·class="text">{purge,·[Mod]} |
| 279 | ··Mod·=·atom()</code></pre><p>Purges·each·module·<code·class="inline">Mod</code>,·that·is,·removes·the·old·code.·Notice·that·any·process | 279 | ··Mod·=·atom()</code></pre><p>Purges·each·module·<code·class="inline">Mod</code>,·that·is,·removes·the·old·code.·Notice·that·any·process |
| 280 | executing·purged·code·is·killed.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 280 | executing·purged·code·is·killed.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="1867707936-1">{</span><span·class="ss">suspend</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1867707936-2">[</span><span·class="n">Mod</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><spa[·...·truncated·by·diffoscope;·len:·300,·SHA:·505d7dd3e44513712e65c3b570f3ab48ea66a6ee2c77f0c14b8dedb3635864f7·...·]-1">}</span><span·class="w"> |
| 281 | ··</span><span·class="n">Mod</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">atom</span><span·class="p"·data-group-id=" | 281 | ··</span><span·class="n">Mod</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">atom</span><span·class="p"·data-group-id="1867707936-4">(</span><span·class="p"·data-group-id="1867707936-4">)</span><span·class="w"> |
| 282 | ··</span><span·class="n">Timeout</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">int</span><span·class="p"·data-group-id=" | 282 | ··</span><span·class="n">Timeout</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">int</span><span·class="p"·data-group-id="1867707936-5">(</span><span·class="p"·data-group-id="1867707936-5">)</span><span·class="o">></span><span·class="mi">0</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">default</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">infinity</span></code></pre><p>Tries·to·suspend·all·processes·using·a·module·<code·class="inline">Mod</code>.·If·a·process·does·not |
| 283 | respond,·it·is·ignored.·This·can·cause·the·process·to·die,·either·because·it | 283 | respond,·it·is·ignored.·This·can·cause·the·process·to·die,·either·because·it |
| 284 | crashes·when·it·spontaneously·switches·to·new·code,·or·as·a·result·of·a·purge | 284 | crashes·when·it·spontaneously·switches·to·new·code,·or·as·a·result·of·a·purge |
| 285 | operation.·If·no·<code·class="inline">Timeout</code>·is·specified·or·<code·class="inline">default</code>·is·specified,·the·default | 285 | operation.·If·no·<code·class="inline">Timeout</code>·is·specified·or·<code·class="inline">default</code>·is·specified,·the·default |
| 286 | value·for·<a·href="../../../../lib/stdlib-7.0/doc/html/sys.html#suspend/1"><code·class="inline">sys:suspend</code></a>·is·used.</p><pre><code·class="text">{resume,·[Mod]} | 286 | value·for·<a·href="../../../../lib/stdlib-7.0/doc/html/sys.html#suspend/1"><code·class="inline">sys:suspend</code></a>·is·used.</p><pre><code·class="text">{resume,·[Mod]} |
| 287 | ··Mod·=·atom()</code></pre><p>Resumes·all·suspended·processes·using·a·module·<code·class="inline">Mod</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 287 | ··Mod·=·atom()</code></pre><p>Resumes·all·suspended·processes·using·a·module·<code·class="inline">Mod</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="3729110801-1">{</span><span·class="ss">code_change</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3729110801-2">[</span><span·class="p"·data-group-id="3729110801-3">{</span><span·class="n">Mod</span><span·class="p">,</[·...·truncated·by·diffoscope;·len:·204,·SHA:·298ab49b44045f07509162df5b80710266749745b9c7fe02ba4ce0a7bff17e48·...·]-1">}</span><span·class="w"> |
| 288 | </span><span·class="p"·data-group-id=" | 288 | </span><span·class="p"·data-group-id="3729110801-4">{</span><span·class="ss">code_change</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Mode</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3729110801-5">[</span><span·class="p"·data-gr[·...·truncated·by·diffoscope;·len:·279,·SHA:·87952e335651bd16f06fd90ec0c6cc453aed6b792afb312fba93fafd16ce0761·...·]-4">}</span><span·class="w"> |
| 289 | ··</span><span·class="n">Mod</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">atom</span><span·class="p"·data-group-id=" | 289 | ··</span><span·class="n">Mod</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">atom</span><span·class="p"·data-group-id="3729110801-7">(</span><span·class="p"·data-group-id="3729110801-7">)</span><span·class="w"> |
| 290 | ··</span><span·class="n">Mode</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">up</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">down</span><span·class="w"> | 290 | ··</span><span·class="n">Mode</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">up</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">down</span><span·class="w"> |
| 291 | ··</span><span·class="n">Extra</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">term</span><span·class="p"·data-group-id=" | 291 | ··</span><span·class="n">Extra</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">term</span><span·class="p"·data-group-id="3729110801-8">(</span><span·class="p"·data-group-id="3729110801-8">)</span></code></pre><p><code·class="inline">Mode</code>·defaults·to·<code·class="inline">up</code>·and·specifies·if·it·is·an·upgrade·or·downgrade.·This |
| 292 | instruction·sends·a·<code·class="inline">code_change</code>·system·message·to·all·processes·using·a·module | 292 | instruction·sends·a·<code·class="inline">code_change</code>·system·message·to·all·processes·using·a·module |
| 293 | <code·class="inline">Mod</code>·by·calling·function·<a·href="../../../../lib/stdlib-7.0/doc/html/sys.html#change_code/4"><code·class="inline">sys:change_code</code></a>,·passing·term | 293 | <code·class="inline">Mod</code>·by·calling·function·<a·href="../../../../lib/stdlib-7.0/doc/html/sys.html#change_code/4"><code·class="inline">sys:change_code</code></a>,·passing·term |
| 294 | <code·class="inline">Extra</code>·as·argument.</p><pre><code·class="text">{stop,·[Mod]} | 294 | <code·class="inline">Extra</code>·as·argument.</p><pre><code·class="text">{stop,·[Mod]} |
| 295 | ··Mod·=·atom()</code></pre><p>Stops·all·processes·using·a·module·<code·class="inline">Mod</code>·by·calling | 295 | ··Mod·=·atom()</code></pre><p>Stops·all·processes·using·a·module·<code·class="inline">Mod</code>·by·calling |
| 296 | <a·href="../../../../lib/stdlib-7.0/doc/html/supervisor.html#terminate_child/2"><code·class="inline">supervisor:terminate_child/2</code></a>.·This·instruction·is·useful·when·the·simplest·way | 296 | <a·href="../../../../lib/stdlib-7.0/doc/html/supervisor.html#terminate_child/2"><code·class="inline">supervisor:terminate_child/2</code></a>.·This·instruction·is·useful·when·the·simplest·way |
| 297 | to·change·code·is·to·stop·and·restart·the·processes·that·run·the·code.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 297 | to·change·code·is·to·stop·and·restart·the·processes·that·run·the·code.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="5002387564-1">{</span><span·class="ss">start</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="5002387564-2">[</span><span·class="n">Mod</span><span·class="p"·data-group-id="5002387564-2">]</span><span·class="p"·data-grou[·...·truncated·by·diffoscope;·len:·16,·SHA:·a13de7a632391a474032decb801cc64121b45f41e01b5d9417d461fd07ecddbd·...·]-1">}</span><span·class="w"> |
| 298 | ··</span><span·class="n">Mod</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">atom</span><span·class="p"·data-group-id=" | 298 | ··</span><span·class="n">Mod</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">atom</span><span·class="p"·data-group-id="5002387564-3">(</span><span·class="p"·data-group-id="5002387564-3">)</span></code></pre><p>Starts·all·stopped·processes·using·a·module·<code·class="inline">Mod</code>·by·calling |
| 299 | <a·href="../../../../lib/stdlib-7.0/doc/html/supervisor.html#restart_child/2"><code·class="inline">supervisor:restart_child/2</code></a>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 299 | <a·href="../../../../lib/stdlib-7.0/doc/html/supervisor.html#restart_child/2"><code·class="inline">supervisor:restart_child/2</code></a>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="3625389160-1">{</span><span·class="ss">sync_nodes</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Id</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3625389160-2">[</span><span·class="n">Node</span[·...·truncated·by·diffoscope;·len:·95,·SHA:·620031854b859f7ce327e88a0a7551aa7e48048da7b305cea1bcea4fd47a9ea4·...·]-1">}</span><span·class="w"> |
| 300 | </span><span·class="p"·data-group-id=" | 300 | </span><span·class="p"·data-group-id="3625389160-3">{</span><span·class="ss">sync_nodes</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Id</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3625389160-4">{</span><span·class="n">M</span><s[·...·truncated·by·diffoscope;·len:·236,·SHA:·0a8046dc750ea45a791b361c06f0941c32105679d8f01f83ae1534173e2a5e64·...·]-3">}</span><span·class="w"> |
| 301 | ··</span><span·class="n">Id</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">term</span><span·class="p"·data-group-id=" | 301 | ··</span><span·class="n">Id</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">term</span><span·class="p"·data-group-id="3625389160-5">(</span><span·class="p"·data-group-id="3625389160-5">)</span><span·class="w"> |
| 302 | ··</span><span·class="n">Node</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">node</span><span·class="p"·data-group-id=" | 302 | ··</span><span·class="n">Node</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">node</span><span·class="p"·data-group-id="3625389160-6">(</span><span·class="p"·data-group-id="3625389160-6">)</span><span·class="w"> |
| 303 | ··</span><span·class="n">M</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">F</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">atom</span><span·class="p"·data-group-id=" | 303 | ··</span><span·class="n">M</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">F</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">atom</span><span·class="p"·data-group-id="3625389160-7">(</span><span·class="p"·data-group-id="3625389160-7">)</span><span·class="w"> |
| 304 | ··</span><span·class="n">A</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 304 | ··</span><span·class="n">A</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="3625389160-8">[</span><span·class="nf">term</span><span·class="p"·data-group-id="3625389160-9">(</span><span·class="p"·data-group-id="3625389160-9">)</span><span·class="p"·data-group-id="3625389160-8">]</span></code></pre><p><a·href="../../../../erts-16.0/doc/html/erlang.html#apply/3"><code·class="inline">apply(M,·F,·A)</code></a>·must·return·a·list·of·nodes.</p><p>This·instruction·synchronizes·the·release·installation·with·other·nodes.·Each |
| 305 | <code·class="inline">Node</code>·must·evaluate·this·command·with·the·same·<code·class="inline">Id</code>.·The·local·node·waits·for | 305 | <code·class="inline">Node</code>·must·evaluate·this·command·with·the·same·<code·class="inline">Id</code>.·The·local·node·waits·for |
| 306 | all·other·nodes·to·evaluate·the·instruction·before·execution·continues.·If·a | 306 | all·other·nodes·to·evaluate·the·instruction·before·execution·continues.·If·a |
| 307 | node·goes·down,·it·is·considered·to·be·an·unrecoverable·error,·and·the·local | 307 | node·goes·down,·it·is·considered·to·be·an·unrecoverable·error,·and·the·local |
| 308 | node·is·restarted·from·the·old·release.·There·is·no·time-out·for·this | 308 | node·is·restarted·from·the·old·release.·There·is·no·time-out·for·this |
| 309 | instruction,·which·means·that·it·can·hang·forever.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 309 | instruction,·which·means·that·it·can·hang·forever.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="1112069364-1">{</span><span·class="nb">apply</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1112069364-2">{</span><span·class="n">M</span><span·class="p">,</span><span·class="w">·</span><span·class="n">F</span><span·cl[·...·truncated·by·diffoscope;·len:·158,·SHA:·b35830b90275e4a018c21820e811880427154f1abdefab45eab5518f6f21d74f·...·]-1">}</span><span·class="w"> |
| 310 | ··</span><span·class="n">M</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">F</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">atom</span><span·class="p"·data-group-id=" | 310 | ··</span><span·class="n">M</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">F</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">atom</span><span·class="p"·data-group-id="1112069364-3">(</span><span·class="p"·data-group-id="1112069364-3">)</span><span·class="w"> |
| 311 | ··</span><span·class="n">A</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 311 | ··</span><span·class="n">A</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="1112069364-4">[</span><span·class="nf">term</span><span·class="p"·data-group-id="1112069364-5">(</span><span·class="p"·data-group-id="1112069364-5">)</span><span·class="p"·data-group-id="1112069364-4">]</span></code></pre><p>Evaluates·<a·href="../../../../erts-16.0/doc/html/erlang.html#apply/3"><code·class="inline">apply(M,·F,·A)</code></a>.</p><p>If·the·instruction·appears·before·instruction·<code·class="inline">point_of_no_return</code>,·a·failure·is |
| 312 | caught.·<a·href="release_handler.html#install_release/1"><code·class="inline">release_handler:install_release/1</code></a>·then·returns | 312 | caught.·<a·href="release_handler.html#install_release/1"><code·class="inline">release_handler:install_release/1</code></a>·then·returns |
| 313 | <code·class="inline">{error,{'EXIT',Reason}}</code>,·unless·<code·class="inline">{error,Error}</code>·is·thrown·or·returned.·Then·it | 313 | <code·class="inline">{error,{'EXIT',Reason}}</code>,·unless·<code·class="inline">{error,Error}</code>·is·thrown·or·returned.·Then·it |
| 314 | returns·<code·class="inline">{error,Error}</code>.</p><p>If·the·instruction·appears·after·instruction·<code·class="inline">point_of_no_return</code>·and·the | 314 | returns·<code·class="inline">{error,Error}</code>.</p><p>If·the·instruction·appears·after·instruction·<code·class="inline">point_of_no_return</code>·and·the |
| 315 | function·call·fails,·the·system·is·restarted.</p><pre><code·class="text">restart_new_emulator</code></pre><p>This·instruction·is·used·when·the·application·ERTS,·Kernel,·STDLIB,·or·SASL·is | 315 | function·call·fails,·the·system·is·restarted.</p><pre><code·class="text">restart_new_emulator</code></pre><p>This·instruction·is·used·when·the·application·ERTS,·Kernel,·STDLIB,·or·SASL·is |
| 316 | upgraded.·It·shuts·down·the·current·emulator·and·starts·a·new·one.·All·processes | 316 | upgraded.·It·shuts·down·the·current·emulator·and·starts·a·new·one.·All·processes |
| 317 | are·terminated·gracefully,·and·the·new·version·of·ERTS,·Kernel,·STDLIB,·and·SASL | 317 | are·terminated·gracefully,·and·the·new·version·of·ERTS,·Kernel,·STDLIB,·and·SASL |
| 318 | are·used·when·the·emulator·restarts.·Only·one·<code·class="inline">restart_new_emulator</code>·instruction | 318 | are·used·when·the·emulator·restarts.·Only·one·<code·class="inline">restart_new_emulator</code>·instruction |
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| 390 | ······<p·class="built-using"> | 390 | ······<p·class="built-using"> |
| 391 | ········Built·using | 391 | ········Built·using |
| 392 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 392 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 393 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 393 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 394 | ······</p> | 394 | ······</p> |
| 395 | <p>Copyright·©·1996-202 | 395 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 396 | ····</footer> | 396 | ····</footer> |
| 397 | ··</div> | 397 | ··</div> |
| 398 | </main> | 398 | </main> |
| 399 | </div> | 399 | </div> |
| 400 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 400 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 401 | ··<script> | 401 | ··<script> |
| 402 | ··let·initialized·=·false; | 402 | ··let·initialized·=·false; |
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| 304 | ········ok</code></pre><h3·id="show-reports"·class="section-heading"> | 304 | ········ok</code></pre><h3·id="show-reports"·class="section-heading"> |
| 305 | ··<a·href="#show-reports"·class="hover-link"> | 305 | ··<a·href="#show-reports"·class="hover-link"> |
| 306 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 306 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 307 | ··</a> | 307 | ··</a> |
| 308 | ··<span·class="text">Show·Reports</span> | 308 | ··<span·class="text">Show·Reports</span> |
| 309 | </h3> | 309 | </h3> |
| 310 | <p>Use·function·<a·href="rb.html#show/1"><code·class="inline">rb:show(Number)</code></a>·to·show·details·of·a·specific | 310 | <p>Use·function·<a·href="rb.html#show/1"><code·class="inline">rb:show(Number)</code></a>·to·show·details·of·a·specific |
| 311 | report:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">7>·</span><span·class="nc">rb</span><span·class="p">:</span><span·class="nf">show</span><span·class="p"·data-group-id="8 | 311 | report:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">7>·</span><span·class="nc">rb</span><span·class="p">:</span><span·class="nf">show</span><span·class="p"·data-group-id="5857284346-1">(</span><span·class="mi">4</span><span·class="p"·data-group-id="5857284346-1">)</span><span·class="p">.</span><span·class="w"> |
| 312 | </span><span·class="n">PROGRESS</span><span·class="w">·</span><span·class="n">REPORT</span><span·class="w">··</span><span·class="o"><</span><span·class="mf">0.20</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="w">···································</span><span·class="mi">1996</span><span·class="o">-</span><span·class="mi">10</span><span·class="o">-</span><span·class="mi">16</span><span·class="w">·</span><span·class="mi">16</span><span·class="p">:</span><span·class="mi">16</span><span·class="p">:</span><span·class="mi">36</span><span·class="w"> | 312 | </span><span·class="n">PROGRESS</span><span·class="w">·</span><span·class="n">REPORT</span><span·class="w">··</span><span·class="o"><</span><span·class="mf">0.20</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="w">···································</span><span·class="mi">1996</span><span·class="o">-</span><span·class="mi">10</span><span·class="o">-</span><span·class="mi">16</span><span·class="w">·</span><span·class="mi">16</span><span·class="p">:</span><span·class="mi">16</span><span·class="p">:</span><span·class="mi">36</span><span·class="w"> |
| 313 | </span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">=</span><span·class="w"> | 313 | </span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">=</span><span·class="w"> |
| 314 | </span><span·class="ss">supervisor</span><span·class="w">·····················································</span><span·class="p"·data-group-id="8 | 314 | </span><span·class="ss">supervisor</span><span·class="w">·····················································</span><span·class="p"·data-group-id="5857284346-2">{</span><span·class="ss">local</span><span·class="p">,</span><span·class="ss">sasl_sup</span><span·class="p"·data-group-id="5857284346-2">}</span><span·class="w"> |
| 315 | </span><span·class="ss">started</span><span·class="w"> | 315 | </span><span·class="ss">started</span><span·class="w"> |
| 316 | </span><span·class="p"·data-group-id="8 | 316 | </span><span·class="p"·data-group-id="5857284346-3">[</span><span·class="p"·data-group-id="5857284346-4">{</span><span·class="ss">pid</span><span·class="p">,</span><span·class="o"><</span><span·class="mf">0.24</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span[·...·truncated·by·diffoscope;·len:·42,·SHA:·378a65bd41aa022eb5d48efa926c891a1ef0d715e42f62ab5c86f3c4adb77aa9·...·]-4">}</span><span·class="p">,</span><span·class="w"> |
| 317 | </span><span·class="p"·data-group-id="8 | 317 | </span><span·class="p"·data-group-id="5857284346-5">{</span><span·class="ss">name</span><span·class="p">,</span><span·class="ss">release_handler</span><span·class="p"·data-group-id="5857284346-5">}</span><span·class="p">,</span><span·class="w"> |
| 318 | </span><span·class="p"·data-group-id="8 | 318 | </span><span·class="p"·data-group-id="5857284346-6">{</span><span·class="ss">mfa</span><span·class="p">,</span><span·class="p"·data-group-id="5857284346-7">{</span><span·class="ss">release_handler</span><span·class="p">,</span><span·class="ss">start_link</span><span·class="p">,</span><span·cla[·...·truncated·by·diffoscope;·len:·191,·SHA:·7d2dc59f12ddf8005a2c28788a467cc661318d720f35858d4ef41b5baa487652·...·]-6">}</span><span·class="p">,</span><span·class="w"> |
| 319 | </span><span·class="p"·data-group-id="8 | 319 | </span><span·class="p"·data-group-id="5857284346-9">{</span><span·class="ss">restart_type</span><span·class="p">,</span><span·class="ss">permanent</span><span·class="p"·data-group-id="5857284346-9">}</span><span·class="p">,</span><span·class="w"> |
| 320 | </span><span·class="p"·data-group-id="8 | 320 | </span><span·class="p"·data-group-id="5857284346-10">{</span><span·class="ss">shutdown</span><span·class="p">,</span><span·class="mi">2000</span><span·class="p"·data-group-id="5857284346-10">}</span><span·class="p">,</span><span·class="w"> |
| 321 | </span><span·class="p"·data-group-id="8 | 321 | </span><span·class="p"·data-group-id="5857284346-11">{</span><span·class="ss">child_type</span><span·class="p">,</span><span·class="ss">worker</span><span·class="p"·data-group-id="5857284346-11">}</span><span·class="p"·data-group-id="5857284346-3">]</span><span·class="w"> |
| 322 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> | 322 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> |
| 323 | 8>·</span><span·class="nc">rb</span><span·class="p">:</span><span·class="nf">show</span><span·class="p"·data-group-id="8 | 323 | 8>·</span><span·class="nc">rb</span><span·class="p">:</span><span·class="nf">show</span><span·class="p"·data-group-id="5857284346-12">(</span><span·class="mi">9</span><span·class="p"·data-group-id="5857284346-12">)</span><span·class="p">.</span><span·class="w"> |
| 324 | </span><span·class="n">CRASH</span><span·class="w">·</span><span·class="n">REPORT</span><span·class="w">··</span><span·class="o"><</span><span·class="mf">0.24</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="w">······································</span><span·class="mi">1996</span><span·class="o">-</span><span·class="mi">10</span><span·class="o">-</span><span·class="mi">16</span><span·class="w">·</span><span·class="mi">16</span><span·class="p">:</span><span·class="mi">16</span><span·class="p">:</span><span·class="mi">21</span><span·class="w"> | 324 | </span><span·class="n">CRASH</span><span·class="w">·</span><span·class="n">REPORT</span><span·class="w">··</span><span·class="o"><</span><span·class="mf">0.24</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="w">······································</span><span·class="mi">1996</span><span·class="o">-</span><span·class="mi">10</span><span·class="o">-</span><span·class="mi">16</span><span·class="w">·</span><span·class="mi">16</span><span·class="p">:</span><span·class="mi">16</span><span·class="p">:</span><span·class="mi">21</span><span·class="w"> |
| 325 | </span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">=</span><span·class="w"> | 325 | </span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">==</span><span·class="o">=</span><span·class="w"> |
| 326 | </span><span·class="n">Crashing</span><span·class="w">·</span><span·class="ss">process</span><span·class="w"> | 326 | </span><span·class="n">Crashing</span><span·class="w">·</span><span·class="ss">process</span><span·class="w"> |
| 327 | </span><span·class="ss">pid</span><span·class="w">·································································</span><span·class="o"><</span><span·class="mf">0.24</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="w"> | 327 | </span><span·class="ss">pid</span><span·class="w">·································································</span><span·class="o"><</span><span·class="mf">0.24</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="w"> |
| 328 | </span><span·class="ss">registered_name</span><span·class="w">··············································</span><span·class="ss">release_handler</span><span·class="w"> | 328 | </span><span·class="ss">registered_name</span><span·class="w">··············································</span><span·class="ss">release_handler</span><span·class="w"> |
| 329 | </span><span·class="ss">error_info</span><span·class="w">·····························</span><span·class="p"·data-group-id="8 | 329 | </span><span·class="ss">error_info</span><span·class="w">·····························</span><span·class="p"·data-group-id="5857284346-13">{</span><span·class="ss">undef</span><span·class="p">,</span><span·class="p"·data-group-id="5857284346-14">{</span><span·class="ss">release_handler</span><span·class="p">,</span><span·class="ss">mbj_func</span><span·class="p">,</span><span·c[·...·truncated·by·diffoscope;·len:·196,·SHA:·0dddb7a2bf12a05459a7e391a5a1f93ee92b12789fdbb0c527a236e653e78c5d·...·]-13">}</span><span·class="w"> |
| 330 | </span><span·class="ss">initial_call</span><span·class="w"> | 330 | </span><span·class="ss">initial_call</span><span·class="w"> |
| 331 | </span><span·class="p"·data-group-id="8 | 331 | </span><span·class="p"·data-group-id="5857284346-16">{</span><span·class="ss">gen</span><span·class="p">,</span><span·class="ss">init_it</span><span·class="p">,</span><span·class="w"> |
| 332 | </span><span·class="p"·data-group-id="8 | 332 | </span><span·class="p"·data-group-id="5857284346-17">[</span><span·class="ss">gen_server</span><span·class="p">,</span><span·class="w"> |
| 333 | </span><span·class="o"><</span><span·class="mf">0.20</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="p">,</span><span·class="w"> | 333 | </span><span·class="o"><</span><span·class="mf">0.20</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="p">,</span><span·class="w"> |
| 334 | </span><span·class="o"><</span><span·class="mf">0.20</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="p">,</span><span·class="w"> | 334 | </span><span·class="o"><</span><span·class="mf">0.20</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="p">,</span><span·class="w"> |
| 335 | </span><span·class="p"·data-group-id="8 | 335 | </span><span·class="p"·data-group-id="5857284346-18">{</span><span·class="ss">erlang</span><span·class="p">,</span><span·class="nb">register</span><span·class="p"·data-group-id="5857284346-18">}</span><span·class="p">,</span><span·class="w"> |
| 336 | </span><span·class="ss">release_handler</span><span·class="p">,</span><span·class="w"> | 336 | </span><span·class="ss">release_handler</span><span·class="p">,</span><span·class="w"> |
| 337 | </span><span·class="ss">release_handler</span><span·class="p">,</span><span·class="w"> | 337 | </span><span·class="ss">release_handler</span><span·class="p">,</span><span·class="w"> |
| 338 | </span><span·class="p"·data-group-id="8 | 338 | </span><span·class="p"·data-group-id="5857284346-19">[</span><span·class="p"·data-group-id="5857284346-19">]</span><span·class="p">,</span><span·class="w"> |
| 339 | </span><span·class="p"·data-group-id="8 | 339 | </span><span·class="p"·data-group-id="5857284346-20">[</span><span·class="p"·data-group-id="5857284346-20">]</span><span·class="p"·data-group-id="5857284346-17">]</span><span·class="p"·data-group-id="5857284346-16">}</span><span·class="w"> |
| 340 | </span><span·class="ss">ancestors</span><span·class="w">················································</span><span·class="p"·data-group-id="8 | 340 | </span><span·class="ss">ancestors</span><span·class="w">················································</span><span·class="p"·data-group-id="5857284346-21">[</span><span·class="ss">sasl_sup</span><span·class="p">,</span><span·class="o"><</span><span·class="mf">0.18</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="p"·data-group-id="5857284346-21">]</span><span·class="w"> |
| 341 | </span><span·class="ss">messages</span><span·class="w">··································································</span><span·class="p"·data-group-id="8 | 341 | </span><span·class="ss">messages</span><span·class="w">··································································</span><span·class="p"·data-group-id="5857284346-22">[</span><span·class="p"·data-group-id="5857284346-22">]</span><span·class="w"> |
| 342 | </span><span·class="ss">links</span><span·class="w">····················································</span><span·class="p"·data-group-id="8 | 342 | </span><span·class="ss">links</span><span·class="w">····················································</span><span·class="p"·data-group-id="5857284346-23">[</span><span·class="o"><</span><span·class="mf">0.23</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="p">,</span><span·class="o"><</span><span·class="mf">0.20</span><span·class="p">.</span[·...·truncated·by·diffoscope;·len:·94,·SHA:·0bc6b8d98cf9d9cd5b2e902d7c66946da91493210f6c76518ee9f3fb130eb565·...·]-23">]</span><span·class="w"> |
| 343 | </span><span·class="ss">dictionary</span><span·class="w">································································</span><span·class="p"·data-group-id="8 | 343 | </span><span·class="ss">dictionary</span><span·class="w">································································</span><span·class="p"·data-group-id="5857284346-24">[</span><span·class="p"·data-group-id="5857284346-24">]</span><span·class="w"> |
| 344 | </span><span·class="ss">trap_exit</span><span·class="w">······························································</span><span·class="ss">false</span><span·class="w"> | 344 | </span><span·class="ss">trap_exit</span><span·class="w">······························································</span><span·class="ss">false</span><span·class="w"> |
| 345 | </span><span·class="ss">status</span><span·class="w">·······························································</span><span·class="ss">running</span><span·class="w"> | 345 | </span><span·class="ss">status</span><span·class="w">·······························································</span><span·class="ss">running</span><span·class="w"> |
| 346 | </span><span·class="ss">heap_size</span><span·class="w">································································</span><span·class="mi">610</span><span·class="w"> | 346 | </span><span·class="ss">heap_size</span><span·class="w">································································</span><span·class="mi">610</span><span·class="w"> |
| 347 | </span><span·class="ss">stack_size</span><span·class="w">·······························································</span><span·class="mi">142</span><span·class="w"> | 347 | </span><span·class="ss">stack_size</span><span·class="w">·······························································</span><span·class="mi">142</span><span·class="w"> |
| 348 | </span><span·class="ss">reductions</span><span·class="w">································································</span><span·class="mi">54</span><span·class="w"> | 348 | </span><span·class="ss">reductions</span><span·class="w">································································</span><span·class="mi">54</span><span·class="w"> |
| 349 | </span><span·class="ss">ok</span></code></pre><h3·id="search-reports"·class="section-heading"> | 349 | </span><span·class="ss">ok</span></code></pre><h3·id="search-reports"·class="section-heading"> |
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| 482 | ········Built·using | 482 | ········Built·using |
| 483 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 483 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 484 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 484 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 485 | ······</p> | 485 | ······</p> |
| 486 | <p>Copyright·©·1996-202 | 486 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 487 | ····</footer> | 487 | ····</footer> |
| 488 | ··</div> | 488 | ··</div> |
| 489 | </main> | 489 | </main> |
| 490 | </div> | 490 | </div> |
| 491 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 491 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 492 | ··<script> | 492 | ··<script> |
| 493 | ··let·initialized·=·false; | 493 | ··let·initialized·=·false; |
| Offset 1177, 15 lines modified | Offset 1177, 15 lines modified | ||
| 1177 | ······<p·class="built-using"> | 1177 | ······<p·class="built-using"> |
| 1178 | ········Built·using | 1178 | ········Built·using |
| 1179 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1179 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1180 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1180 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1181 | ······</p> | 1181 | ······</p> |
| 1182 | <p>Copyright·©·1996-202 | 1182 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1183 | ····</footer> | 1183 | ····</footer> |
| 1184 | ··</div> | 1184 | ··</div> |
| 1185 | </main> | 1185 | </main> |
| 1186 | </div> | 1186 | </div> |
| 1187 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1187 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1188 | ··<script> | 1188 | ··<script> |
| 1189 | ··let·initialized·=·false; | 1189 | ··let·initialized·=·false; |
| Offset 1065, 15 lines modified | Offset 1065, 15 lines modified | ||
| 1065 | ······<p·class="built-using"> | 1065 | ······<p·class="built-using"> |
| 1066 | ········Built·using | 1066 | ········Built·using |
| 1067 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1067 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1068 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1068 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1069 | ······</p> | 1069 | ······</p> |
| 1070 | <p>Copyright·©·1996-202 | 1070 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1071 | ····</footer> | 1071 | ····</footer> |
| 1072 | ··</div> | 1072 | ··</div> |
| 1073 | </main> | 1073 | </main> |
| 1074 | </div> | 1074 | </div> |
| 1075 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1075 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1076 | ··<script> | 1076 | ··<script> |
| 1077 | ··let·initialized·=·false; | 1077 | ··let·initialized·=·false; |
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| 136 | (<code·class="inline">.script</code>,·<code·class="inline">.boot</code>)·and·release·upgrade·files·(<code·class="inline">relup</code>).</p><h2·id="file-syntax"·class="section-heading"> | 136 | (<code·class="inline">.script</code>,·<code·class="inline">.boot</code>)·and·release·upgrade·files·(<code·class="inline">relup</code>).</p><h2·id="file-syntax"·class="section-heading"> |
| 137 | ··<a·href="#file-syntax"·class="hover-link"> | 137 | ··<a·href="#file-syntax"·class="hover-link"> |
| 138 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 138 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 139 | ··</a> | 139 | ··</a> |
| 140 | ··<span·class="text">File·Syntax</span> | 140 | ··<span·class="text">File·Syntax</span> |
| 141 | </h2> | 141 | </h2> |
| 142 | <p>The·release·resource·file·is·to·be·called·<code·class="inline">Name.rel</code>.</p><p>The·<code·class="inline">.rel</code>·file·contains·one·single·Erlang·term,·which·is·called·a·<em>release | 142 | <p>The·release·resource·file·is·to·be·called·<code·class="inline">Name.rel</code>.</p><p>The·<code·class="inline">.rel</code>·file·contains·one·single·Erlang·term,·which·is·called·a·<em>release |
| 143 | specification</em>.·The·file·has·the·following·syntax:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 143 | specification</em>.·The·file·has·the·following·syntax:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="6812406205-1">{</span><span·class="ss">release</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6812406205-2">{</span><span·class="n">RelName</span><span·class="p">,</span><span·class="n">Vsn</span><span·class="p"·data-g[·...·truncated·by·diffoscope;·len:·276,·SHA:·b5423d9623e9b92f532f1d64906d889bc85baf3f3dad8244e86113afb2934f33·...·]-3">}</span><span·class="p">,</span><span·class="w"> |
| 144 | ··</span><span·class="p"·data-group-id=" | 144 | ··</span><span·class="p"·data-group-id="6812406205-4">[</span><span·class="p"·data-group-id="6812406205-5">{</span><span·class="n">Application</span><span·class="p">,</span><span·class="w">·</span><span·class="n">AppVsn</span><span·class="p"·data-group-id="6812406205-5">}</span><span·class="w">·</span><span·class="p">|</span><span·class="w"> |
| 145 | ···</span><span·class="p"·data-group-id=" | 145 | ···</span><span·class="p"·data-group-id="6812406205-6">{</span><span·class="n">Application</span><span·class="p">,</span><span·class="w">·</span><span·class="n">AppVsn</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Type</span><span·class="p"·data-group-id="6812406205-6">}</span><span·class="w">·</span><span·class="p">|</span><span·class="w"> |
| 146 | ···</span><span·class="p"·data-group-id=" | 146 | ···</span><span·class="p"·data-group-id="6812406205-7">{</span><span·class="n">Application</span><span·class="p">,</span><span·class="w">·</span><span·class="n">AppVsn</span><span·class="p">,</span><span·class="w">·</span><span·class="n">IncApps</span><span·class="p"·data-group-id="6812406205-7">}</span><span·class="w">·</span><span·class="p">|</span><span·class="w"> |
| 147 | ···</span><span·class="p"·data-group-id=" | 147 | ···</span><span·class="p"·data-group-id="6812406205-8">{</span><span·class="n">Application</span><span·class="p">,</span><span·class="w">·</span><span·class="n">AppVsn</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Type</span><span·class="p">,</span><span·class="w">·</span>[·...·truncated·by·diffoscope;·len:·177,·SHA:·9c663eabe1ceff568c0fff9e0f6cf9f92fdbac9def1baf3a2ec21426f979c635·...·]-1">}</span><span·class="p">.</span></code></pre><ul><li><p><strong><code·class="inline">RelName·=·string()</code></strong>·-·Release·name.</p></li><li><p><strong><code·class="inline">Vsn·=·string()</code></strong>·-·Release·version.</p></li><li><p><strong><code·class="inline">EVsn·=·string()</code></strong>·-·ERTS·version·the·release·is·intended·for.</p></li><li><p><strong><code·class="inline">Application·=·atom()</code></strong>·-·Name·of·an·application·included·in·the·release.</p></li><li><p><strong><code·class="inline">AppVsn·=·string()</code></strong>·-·Version·of·an·application·included·in·the·release.</p></li><li><p><strong><code·class="inline">Type·=·permanent·|·transient·|·temporary·|·load·|·none</code></strong>·-·Start·type·of |
| 148 | an·application·included·in·the·release.</p><p>If·<code·class="inline">Type·=·permanent·|·transient·|·temporary</code>,·the·application·is·loaded·and | 148 | an·application·included·in·the·release.</p><p>If·<code·class="inline">Type·=·permanent·|·transient·|·temporary</code>,·the·application·is·loaded·and |
| 149 | started·in·the·corresponding·way,·see·<a·href="../../../../lib/kernel-10.3/doc/html/application.html"><code·class="inline">application</code></a>.</p><p>If·<code·class="inline">Type·=·load</code>,·the·application·is·only·loaded.</p><p>If·<code·class="inline">Type·=·none</code>,·the·application·is·not·loaded·and·not·started,·although·the | 149 | started·in·the·corresponding·way,·see·<a·href="../../../../lib/kernel-10.3/doc/html/application.html"><code·class="inline">application</code></a>.</p><p>If·<code·class="inline">Type·=·load</code>,·the·application·is·only·loaded.</p><p>If·<code·class="inline">Type·=·none</code>,·the·application·is·not·loaded·and·not·started,·although·the |
| 150 | code·for·its·modules·is·loaded.</p><p>Defaults·to·<code·class="inline">permanent</code></p></li><li><p><strong><code·class="inline">IncApps·=·[atom()]</code></strong>·-·A·list·of·applications·that·are·included·by·an | 150 | code·for·its·modules·is·loaded.</p><p>Defaults·to·<code·class="inline">permanent</code></p></li><li><p><strong><code·class="inline">IncApps·=·[atom()]</code></strong>·-·A·list·of·applications·that·are·included·by·an |
| 151 | application·included·in·the·release.·The·list·must·be·a·subset·of·the·included | 151 | application·included·in·the·release.·The·list·must·be·a·subset·of·the·included |
| 152 | applications·specified·in·the·application·resource·file·(<code·class="inline">Application.app</code>) | 152 | applications·specified·in·the·application·resource·file·(<code·class="inline">Application.app</code>) |
| 153 | and·overrides·this·value.·Defaults·to·the·same·value·as·in·the·application | 153 | and·overrides·this·value.·Defaults·to·the·same·value·as·in·the·application |
| 154 | resource·file.</p></li></ul><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>The·list·of·applications·must·contain·the·Kernel·and·STDLIB·applications.</p></section><h2·id="see-also"·class="section-heading"> | 154 | resource·file.</p></li></ul><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>The·list·of·applications·must·contain·the·Kernel·and·STDLIB·applications.</p></section><h2·id="see-also"·class="section-heading"> |
| Offset 204, 15 lines modified | Offset 204, 15 lines modified | ||
| 204 | ······<p·class="built-using"> | 204 | ······<p·class="built-using"> |
| 205 | ········Built·using | 205 | ········Built·using |
| 206 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 206 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 207 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 207 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 208 | ······</p> | 208 | ······</p> |
| 209 | <p>Copyright·©·1996-202 | 209 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 210 | ····</footer> | 210 | ····</footer> |
| 211 | ··</div> | 211 | ··</div> |
| 212 | </main> | 212 | </main> |
| 213 | </div> | 213 | </div> |
| 214 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 214 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 215 | ··<script> | 215 | ··<script> |
| 216 | ··let·initialized·=·false; | 216 | ··let·initialized·=·false; |
| Offset 1053, 16 lines modified | Offset 1053, 16 lines modified | ||
| 1053 | updated·(<code·class="inline">Bool==true</code>)·or·if·only·code·paths·for·modified·applications·are·to | 1053 | updated·(<code·class="inline">Bool==true</code>)·or·if·only·code·paths·for·modified·applications·are·to |
| 1054 | be·updated·(<code·class="inline">Bool==false</code>,·default).·This·option·has·only·effect·for·other | 1054 | be·updated·(<code·class="inline">Bool==false</code>,·default).·This·option·has·only·effect·for·other |
| 1055 | application·directories·than·the·default·<code·class="inline">$ROOT/lib/App-Vsn</code>,·that·is, | 1055 | application·directories·than·the·default·<code·class="inline">$ROOT/lib/App-Vsn</code>,·that·is, |
| 1056 | application·directories·specified·in·argument·<code·class="inline">AppDirs</code>·in·a·call·to | 1056 | application·directories·specified·in·argument·<code·class="inline">AppDirs</code>·in·a·call·to |
| 1057 | <a·href="#create_RELEASES/4"><code·class="inline">create_RELEASES/4</code></a>·or·<a·href="#set_unpacked/2"><code·class="inline">set_unpacked/2</code></a>.</p><p><em>Example:</em></p><p>In·the·current·version·<code·class="inline">CurVsn</code>·of·a·release,·the·application·directory·of | 1057 | <a·href="#create_RELEASES/4"><code·class="inline">create_RELEASES/4</code></a>·or·<a·href="#set_unpacked/2"><code·class="inline">set_unpacked/2</code></a>.</p><p><em>Example:</em></p><p>In·the·current·version·<code·class="inline">CurVsn</code>·of·a·release,·the·application·directory·of |
| 1058 | <code·class="inline">myapp</code>·is·<code·class="inline">$ROOT/lib/myapp-1.0</code>.·A·new·version·<code·class="inline">NewVsn</code>·is·unpacked·outside | 1058 | <code·class="inline">myapp</code>·is·<code·class="inline">$ROOT/lib/myapp-1.0</code>.·A·new·version·<code·class="inline">NewVsn</code>·is·unpacked·outside |
| 1059 | the·release·handler·and·the·release·handler·is·informed·about·this·with·a·call | 1059 | the·release·handler·and·the·release·handler·is·informed·about·this·with·a·call |
| 1060 | as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">release_handler</span><span·class="p">:</span><span·class="nf">set_unpacked</span><span·class="p"·data-group-id=" | 1060 | as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">release_handler</span><span·class="p">:</span><span·class="nf">set_unpacked</span><span·class="p"·data-group-id="2443423788-1">(</span><span·class="n">RelFile</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2443423788-2">[</span><span·class="p"·data-group-id="2443423788-3">{</span><span·class="ss">myapp</span><span·class="p">,</sp[·...·truncated·by·diffoscope;·len:·353,·SHA:·e397d994e7bb5a5cdd08cabb4d914e38d7f7c32de5d30c4a7bd80dfec37f3d6a·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 1061 | </span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id=" | 1061 | </span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="2443423788-4">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="n">NewVsn</span><span·class="p"·data-group-id="2443423788-4">}</span></code></pre><p>If·<code·class="inline">NewVsn</code>·is·installed·with·option·<code·class="inline">{update_paths,true}</code>,·then |
| 1062 | <a·href="../../../../lib/kernel-10.3/doc/html/code.html#lib_dir/1"><code·class="inline">code:lib_dir(myapp)</code></a>·returns·<code·class="inline">/home/user/myapp-1.0</code>.</p></li></ul><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>Installing·a·new·release·can·be·time·consuming·if·there·are·many·processes·in | 1062 | <a·href="../../../../lib/kernel-10.3/doc/html/code.html#lib_dir/1"><code·class="inline">code:lib_dir(myapp)</code></a>·returns·<code·class="inline">/home/user/myapp-1.0</code>.</p></li></ul><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>Installing·a·new·release·can·be·time·consuming·if·there·are·many·processes·in |
| 1063 | the·system.·The·reason·is·that·each·process·must·be·checked·for·references·to | 1063 | the·system.·The·reason·is·that·each·process·must·be·checked·for·references·to |
| 1064 | old·code·before·a·module·can·be·purged.·This·check·can·lead·to·garbage | 1064 | old·code·before·a·module·can·be·purged.·This·check·can·lead·to·garbage |
| 1065 | collections·and·copying·of·data.</p><p>To·speed·up·the·execution·of·<a·href="#install_release/1"><code·class="inline">install_release</code></a>,·first | 1065 | collections·and·copying·of·data.</p><p>To·speed·up·the·execution·of·<a·href="#install_release/1"><code·class="inline">install_release</code></a>,·first |
| 1066 | call·<a·href="#check_install_release/1"><code·class="inline">check_install_release</code></a>,·using·option | 1066 | call·<a·href="#check_install_release/1"><code·class="inline">check_install_release</code></a>,·using·option |
| 1067 | <code·class="inline">purge</code>.·This·does·the·same·check·for·old·code.·Then·purges·all·modules·that | 1067 | <code·class="inline">purge</code>.·This·does·the·same·check·for·old·code.·Then·purges·all·modules·that |
| 1068 | can·be·soft-purged.·The·purged·modules·do·then·no·longer·have·any·old·code, | 1068 | can·be·soft-purged.·The·purged·modules·do·then·no·longer·have·any·old·code, |
| Offset 1339, 15 lines modified | Offset 1339, 15 lines modified | ||
| 1339 | ······<p·class="built-using"> | 1339 | ······<p·class="built-using"> |
| 1340 | ········Built·using | 1340 | ········Built·using |
| 1341 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1341 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1342 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1342 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1343 | ······</p> | 1343 | ······</p> |
| 1344 | <p>Copyright·©·1996-202 | 1344 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1345 | ····</footer> | 1345 | ····</footer> |
| 1346 | ··</div> | 1346 | ··</div> |
| 1347 | </main> | 1347 | </main> |
| 1348 | </div> | 1348 | </div> |
| 1349 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1349 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1350 | ··<script> | 1350 | ··<script> |
| 1351 | ··let·initialized·=·false; | 1351 | ··let·initialized·=·false; |
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| 206 | ······<p·class="built-using"> | 206 | ······<p·class="built-using"> |
| 207 | ········Built·using | 207 | ········Built·using |
| 208 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 208 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 209 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 209 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 210 | ······</p> | 210 | ······</p> |
| 211 | <p>Copyright·©·1996-202 | 211 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 212 | ····</footer> | 212 | ····</footer> |
| 213 | ··</div> | 213 | ··</div> |
| 214 | </main> | 214 | </main> |
| 215 | </div> | 215 | </div> |
| 216 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 216 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 217 | ··<script> | 217 | ··<script> |
| 218 | ··let·initialized·=·false; | 218 | ··let·initialized·=·false; |
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| 1 | Zip·archive·data,·made·by·v6.1·UNIX,·extract·using·at·least·v1.0,·last·modified·Ju | 1 | Zip·archive·data,·made·by·v6.1·UNIX,·extract·using·at·least·v1.0,·last·modified·Jul·05·2026·23:52:28,·uncompressed·size·20,·method=store |
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| 261 | ······<p·class="built-using"> | 261 | ······<p·class="built-using"> |
| 262 | ········Built·using | 262 | ········Built·using |
| 263 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 263 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 264 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 264 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 265 | ······</p> | 265 | ······</p> |
| 266 | <p>Copyright·©·1996-202 | 266 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 267 | ····</footer> | 267 | ····</footer> |
| 268 | ··</div> | 268 | ··</div> |
| 269 | </main> | 269 | </main> |
| 270 | </div> | 270 | </div> |
| 271 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 271 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 272 | ··<script> | 272 | ··<script> |
| 273 | ··let·initialized·=·false; | 273 | ··let·initialized·=·false; |
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| 188 | ······<p·class="built-using"> | 188 | ······<p·class="built-using"> |
| 189 | ········Built·using | 189 | ········Built·using |
| 190 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 190 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 191 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 191 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 192 | ······</p> | 192 | ······</p> |
| 193 | <p>Copyright·©·1996-202 | 193 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 194 | ····</footer> | 194 | ····</footer> |
| 195 | ··</div> | 195 | ··</div> |
| 196 | </main> | 196 | </main> |
| 197 | </div> | 197 | </div> |
| 198 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 198 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 199 | ··<script> | 199 | ··<script> |
| 200 | ··let·initialized·=·false; | 200 | ··let·initialized·=·false; |
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| 138 | files.</p><h2·id="file-syntax"·class="section-heading"> | 138 | files.</p><h2·id="file-syntax"·class="section-heading"> |
| 139 | ··<a·href="#file-syntax"·class="hover-link"> | 139 | ··<a·href="#file-syntax"·class="hover-link"> |
| 140 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 140 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 141 | ··</a> | 141 | ··</a> |
| 142 | ··<span·class="text">File·Syntax</span> | 142 | ··<span·class="text">File·Syntax</span> |
| 143 | </h2> | 143 | </h2> |
| 144 | <p>The·boot·script·is·stored·in·a·file·with·extension·<code·class="inline">.script</code>.·The·file·has·the | 144 | <p>The·boot·script·is·stored·in·a·file·with·extension·<code·class="inline">.script</code>.·The·file·has·the |
| 145 | following·syntax:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="3 | 145 | following·syntax:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="3172398968-1">{</span><span·class="ss">script</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3172398968-2">{</span><span·class="n">Name</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Vsn</span><sp[·...·truncated·by·diffoscope;·len:·38,·SHA:·4ce61874b7730d90f7422ed681b204bcf494d698f5b76225059ce3c318f583fd·...·]-2">}</span><span·class="p">,</span><span·class="w"> |
| 146 | ·</span><span·class="p"·data-group-id="3 | 146 | ·</span><span·class="p"·data-group-id="3172398968-3">[</span><span·class="w"> |
| 147 | ··</span><span·class="p"·data-group-id="3 | 147 | ··</span><span·class="p"·data-group-id="3172398968-4">{</span><span·class="ss">progress</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">loading</span><span·class="p"·data-group-id="3172398968-4">}</span><span·class="p">,</span><span·class="w"> |
| 148 | ··</span><span·class="p"·data-group-id="3 | 148 | ··</span><span·class="p"·data-group-id="3172398968-5">{</span><span·class="ss">preLoaded</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3172398968-6">[</span><span·class="n">Mod1</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Mod2</span[·...·truncated·by·diffoscope;·len:·215,·SHA:·0a0e8966c3ce809a092d414e9d718bb739141d312ca6e9fd8126b8bdb95c70c2·...·]-5">}</span><span·class="p">,</span><span·class="w"> |
| 149 | ··</span><span·class="p"·data-group-id="3 | 149 | ··</span><span·class="p"·data-group-id="3172398968-7">{</span><span·class="ss">path</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3172398968-8">[</span><span·class="n">Dir1</span><span·class="p">,</span><span·class="s">"$ROOT/Dir"</span><span·class[·...·truncated·by·diffoscope;·len:·179,·SHA:·801b44341992268bb1bbf79c07979bc1147a6c7f59b709cf9890d23ea5b2cb2b·...·]-7">}</span><span·class="p">.</span><span·class="w"> |
| 150 | ··</span><span·class="p"·data-group-id="3 | 150 | ··</span><span·class="p"·data-group-id="3172398968-9">{</span><span·class="ss">primLoad</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3172398968-10">[</span><span·class="n">Mod1</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Mod2</span[·...·truncated·by·diffoscope;·len:·216,·SHA:·e30a23252099374bca3ae5a49d568a89c8bec36fb908c6a237d51284ecc0632e·...·]-9">}</span><span·class="p">,</span><span·class="w"> |
| 151 | ··</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> | 151 | ··</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> |
| 152 | ··</span><span·class="p"·data-group-id="3 | 152 | ··</span><span·class="p"·data-group-id="3172398968-11">{</span><span·class="ss">kernel_load_completed</span><span·class="p"·data-group-id="3172398968-11">}</span><span·class="p">,</span><span·class="w"> |
| 153 | ··</span><span·class="p"·data-group-id="3 | 153 | ··</span><span·class="p"·data-group-id="3172398968-12">{</span><span·class="ss">progress</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">loaded</span><span·class="p"·data-group-id="3172398968-12">}</span><span·class="p">,</span><span·class="w"> |
| 154 | ··</span><span·class="p"·data-group-id="3 | 154 | ··</span><span·class="p"·data-group-id="3172398968-13">{</span><span·class="ss">kernelProcess</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Name</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3172398968-14">{</span><span·class="n">Mod<[·...·truncated·by·diffoscope;·len:·251,·SHA:·bc46ac0d2a759e153fc7a3c3d5a1eb1f857852898a61ea5aa6d39029ce03fe7e·...·]-13">}</span><span·class="p">,</span><span·class="w"> |
| 155 | ··</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> | 155 | ··</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> |
| 156 | ··</span><span·class="p"·data-group-id="3 | 156 | ··</span><span·class="p"·data-group-id="3172398968-15">{</span><span·class="nb">apply</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3172398968-16">{</span><span·class="n">Mod</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Func</span><s[·...·truncated·by·diffoscope;·len:·168,·SHA:·b65abe68e3c47ba240c963b162d27e1781c7975ca66de05f42a0ebdb6a0cc7bd·...·]-15">}</span><span·class="p">,</span><span·class="w"> |
| 157 | ··</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> | 157 | ··</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> |
| 158 | ··</span><span·class="p"·data-group-id="3 | 158 | ··</span><span·class="p"·data-group-id="3172398968-17">{</span><span·class="ss">progress</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">started</span><span·class="p"·data-group-id="3172398968-17">}</span><span·class="p"·data-group-id="3172398968-3">]</span><span·class="p"·[·...·truncated·by·diffoscope;·len:·25,·SHA:·2c02d454f139519a049f982540d073c09307f36e49133780edb6cd6c0f49c42a·...·]-1">}</span><span·class="p">.</span></code></pre><ul><li><p><strong><code·class="inline">Name·=·string()</code></strong>·-·Defines·the·system·name.</p></li><li><p><strong><code·class="inline">Vsn·=·string()</code></strong>·-·Defines·the·system·version.</p></li><li><p><strong><code·class="inline">{progress,·Term}</code></strong>·-·Sets·the·"progress"·of·the·initialization·program. |
| 159 | The·<a·href="../../../../erts-16.0/doc/html/init.html#get_status/0"><code·class="inline">init:get_status/0</code></a>·function·returns·the·current·value·of·the·progress, | 159 | The·<a·href="../../../../erts-16.0/doc/html/init.html#get_status/0"><code·class="inline">init:get_status/0</code></a>·function·returns·the·current·value·of·the·progress, |
| 160 | which·is·<code·class="inline">{InternalStatus,Term}</code>.</p></li><li><p><strong><code·class="inline">{path,·[Dir]}</code></strong>·-·<code·class="inline">Dir</code>·is·a·string.·This·argument·sets·the·load·path·of | 160 | which·is·<code·class="inline">{InternalStatus,Term}</code>.</p></li><li><p><strong><code·class="inline">{path,·[Dir]}</code></strong>·-·<code·class="inline">Dir</code>·is·a·string.·This·argument·sets·the·load·path·of |
| 161 | the·system·to·<code·class="inline">[Dir]</code>.·The·load·path·used·to·load·modules·is·obtained·from·the | 161 | the·system·to·<code·class="inline">[Dir]</code>.·The·load·path·used·to·load·modules·is·obtained·from·the |
| 162 | initial·load·path,·which·is·given·in·the·script·file,·together·with·any·path | 162 | initial·load·path,·which·is·given·in·the·script·file,·together·with·any·path |
| 163 | flags·that·were·supplied·in·the·command-line·arguments.·The·command-line | 163 | flags·that·were·supplied·in·the·command-line·arguments.·The·command-line |
| 164 | arguments·modify·the·path·as·follows:</p><ul><li><code·class="inline">-pa·Dir1·Dir2·...·DirN</code>·adds·the·directories | 164 | arguments·modify·the·path·as·follows:</p><ul><li><code·class="inline">-pa·Dir1·Dir2·...·DirN</code>·adds·the·directories |
| 165 | <code·class="inline">DirN,·DirN-1,·...,·Dir2,·Dir1</code>·to·the·front·of·the·initial·load·path.</li><li><code·class="inline">-pz·Dir1·Dir2·...·DirN</code>·adds·the·directories·<code·class="inline">Dir1,·Dir2,·...,·DirN</code>·to·the | 165 | <code·class="inline">DirN,·DirN-1,·...,·Dir2,·Dir1</code>·to·the·front·of·the·initial·load·path.</li><li><code·class="inline">-pz·Dir1·Dir2·...·DirN</code>·adds·the·directories·<code·class="inline">Dir1,·Dir2,·...,·DirN</code>·to·the |
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| 230 | ······<p·class="built-using"> | 230 | ······<p·class="built-using"> |
| 231 | ········Built·using | 231 | ········Built·using |
| 232 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 232 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 233 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 233 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 234 | ······</p> | 234 | ······</p> |
| 235 | <p>Copyright·©·1996-202 | 235 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 236 | ····</footer> | 236 | ····</footer> |
| 237 | ··</div> | 237 | ··</div> |
| 238 | </main> | 238 | </main> |
| 239 | </div> | 239 | </div> |
| 240 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 240 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 241 | ··<script> | 241 | ··<script> |
| 242 | ··let·initialized·=·false; | 242 | ··let·initialized·=·false; |
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| 141 | ······<p·class="built-using"> | 141 | ······<p·class="built-using"> |
| 142 | ········Built·using | 142 | ········Built·using |
| 143 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 143 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 144 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 144 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 145 | ······</p> | 145 | ······</p> |
| 146 | <p>Copyright·©·1996-202 | 146 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 147 | ····</footer> | 147 | ····</footer> |
| 148 | ··</div> | 148 | ··</div> |
| 149 | </main> | 149 | </main> |
| 150 | </div> | 150 | </div> |
| 151 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 151 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 152 | ··<script> | 152 | ··<script> |
| 153 | ··let·initialized·=·false; | 153 | ··let·initialized·=·false; |
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| 654 | ······<p·class="built-using"> | 654 | ······<p·class="built-using"> |
| 655 | ········Built·using | 655 | ········Built·using |
| 656 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 656 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 657 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 657 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 658 | ······</p> | 658 | ······</p> |
| 659 | <p>Copyright·©·1996-202 | 659 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 660 | ····</footer> | 660 | ····</footer> |
| 661 | ··</div> | 661 | ··</div> |
| 662 | </main> | 662 | </main> |
| 663 | </div> | 663 | </div> |
| 664 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 664 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 665 | ··<script> | 665 | ··<script> |
| 666 | ··let·initialized·=·false; | 666 | ··let·initialized·=·false; |
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| 143 | ······<p·class="built-using"> | 143 | ······<p·class="built-using"> |
| 144 | ········Built·using | 144 | ········Built·using |
| 145 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 145 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 146 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 146 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 147 | ······</p> | 147 | ······</p> |
| 148 | <p>Copyright·©·1996-202 | 148 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 149 | ····</footer> | 149 | ····</footer> |
| 150 | ··</div> | 150 | ··</div> |
| 151 | </main> | 151 | </main> |
| 152 | </div> | 152 | </div> |
| 153 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 153 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 154 | ··<script> | 154 | ··<script> |
| 155 | ··let·initialized·=·false; | 155 | ··let·initialized·=·false; |
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| 478 | ······<p·class="built-using"> | 478 | ······<p·class="built-using"> |
| 479 | ········Built·using | 479 | ········Built·using |
| 480 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 480 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 481 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 481 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 482 | ······</p> | 482 | ······</p> |
| 483 | <p>Copyright·©·1996-202 | 483 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 484 | ····</footer> | 484 | ····</footer> |
| 485 | ··</div> | 485 | ··</div> |
| 486 | </main> | 486 | </main> |
| 487 | </div> | 487 | </div> |
| 488 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 488 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 489 | ··<script> | 489 | ··<script> |
| 490 | ··let·initialized·=·false; | 490 | ··let·initialized·=·false; |
| Offset 133, 17 lines modified | Offset 133, 17 lines modified | ||
| 133 | </h2> | 133 | </h2> |
| 134 | <h3·id="improvements-and-new-features"·class="section-heading"> | 134 | <h3·id="improvements-and-new-features"·class="section-heading"> |
| 135 | ··<a·href="#improvements-and-new-features"·class="hover-link"> | 135 | ··<a·href="#improvements-and-new-features"·class="hover-link"> |
| 136 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 136 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 137 | ··</a> | 137 | ··</a> |
| 138 | ··<span·class="text">Improvements·and·New·Features</span> | 138 | ··<span·class="text">Improvements·and·New·Features</span> |
| 139 | </h3> | 139 | </h3> |
| 140 | <ul><li><p><a·href="https://www.erlang.org/eeps/eep-0069">EEP-69:·Nominal·Types</a>·has·been·implemented.·As·a·side·effect,·nominal·types·can·encode·opaque·types.·We·changed·all·opaque-handling·logic·and·improved·opaque·warnings·in·Dialyzer.</p><p>All·existing·Erlang·type·systems·are·structural:·two·types·are·seen·as·equivalent·if·their·structures·are·the·same.·Type·comparisons·are·based·on·the·structures·of·the·types,·not·on·how·the·user·explicitly·defines·them.·For·example,·in·the·following·example,·<code·class="inline">meter()</code>·and·<code·class="inline">foot()</code>·are·equivalent.·The·two·types·can·be·used·interchangeably.·Neither·of·them·differ·from·the·basic·type·<code·class="inline">integer()</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">type</span><span·class="w">·</span><span·class="nf">meter</span><span·class="p"·data-group-id=" | 140 | <ul><li><p><a·href="https://www.erlang.org/eeps/eep-0069">EEP-69:·Nominal·Types</a>·has·been·implemented.·As·a·side·effect,·nominal·types·can·encode·opaque·types.·We·changed·all·opaque-handling·logic·and·improved·opaque·warnings·in·Dialyzer.</p><p>All·existing·Erlang·type·systems·are·structural:·two·types·are·seen·as·equivalent·if·their·structures·are·the·same.·Type·comparisons·are·based·on·the·structures·of·the·types,·not·on·how·the·user·explicitly·defines·them.·For·example,·in·the·following·example,·<code·class="inline">meter()</code>·and·<code·class="inline">foot()</code>·are·equivalent.·The·two·types·can·be·used·interchangeably.·Neither·of·them·differ·from·the·basic·type·<code·class="inline">integer()</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">type</span><span·class="w">·</span><span·class="nf">meter</span><span·class="p"·data-group-id="4446405904-1">(</span><span·class="p"·data-group-id="4446405904-1">)</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="4446405904-2">(</span><[·...·truncated·by·diffoscope;·len:·40,·SHA:·38384a9760c7da6cd21aaa4d07c4592d431ebabfc0ad3e63bfa6a06124718c77·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 141 | </span><span·class="p">-</span><span·class="na">type</span><span·class="w">·</span><span·class="nf">foot</span><span·class="p"·data-group-id=" | 141 | </span><span·class="p">-</span><span·class="na">type</span><span·class="w">·</span><span·class="nf">foot</span><span·class="p"·data-group-id="4446405904-3">(</span><span·class="p"·data-group-id="4446405904-3">)</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="4446405904-4">(</span><[·...·truncated·by·diffoscope;·len:·1061,·SHA:·14320fa3eaed9648bf940da02b38744d79e2173b7ea74db44aa1fab9af1a5e22·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 142 | </span><span·class="p">-</span><span·class="na">nominal</span><span·class="w">·</span><span·class="nf">foot</span><span·class="p"·data-group-id=" | 142 | </span><span·class="p">-</span><span·class="na">nominal</span><span·class="w">·</span><span·class="nf">foot</span><span·class="p"·data-group-id="8892155577-3">(</span><span·class="p"·data-group-id="8892155577-3">)</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="8892155577-4">(</span><[·...·truncated·by·diffoscope;·len:·40,·SHA:·806f562f1b727c5bcff9ee562192795d5a8e8527bf16254b5e30aa8f955149fc·...·]-4">)</span><span·class="p">.</span></code></pre><p>More·nominal·type-checking·rules·can·be·found·in·the·EEP.·It·is·worth·noting·that·most·work·for·adding·nominal·types·and·type-checking·is·in·<code·class="inline">erl_types.erl</code>.·The·rest·are·changes·that·removed·the·previous·opaque·type-checking,·and·added·an·improved·version·of·it·using·nominal·type-checking·with·reworked·warnings.</p><p>Backwards·compatibility·for·opaque·type-checking·is·not·preserved·by·this·PR.·Previous·opaque·warnings·can·appear·with·slightly·different·wordings.·A·new·kind·of·opaque·warning·<code·class="inline">opaque_union</code>·is·added,·together·with·a·Dialyzer·option·<code·class="inline">no_opaque_union</code>·to·turn·this·kind·of·warnings·off.</p><p>Own·Id:·OTP-19364·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9079"·title="">PR-9079</a></p></li><li><p>Added·support·for·compiling·Erlang/OTP·for·Windows·on·ARM64.</p><p>Own·Id:·OTP-19480·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8734"·title="">PR-8734</a></p></li><li><p>When·compiling·C/C++·code·on·Unix·systems,·the·compiler·hardening·flags·suggested·by·the·<a·href="https://github.com/ossf/wg-best-practices-os-developers/blob/main/docs/Compiler-Hardening-Guides/Compiler-Options-Hardening-Guide-for-C-and-C%2B%2B.md">Open·Source·Security·Foundation</a>·are·now·enabled·by·default.·To·disable·them,·pass·<code·class="inline">--disable-security-hardening-flags</code>·to·<code·class="inline">configure</code>.</p><p>Own·Id:·OTP-19519·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9441"·title="">PR-9441</a></p></li><li><p>Add·copyright·notice·to·files·that·still·had·none.</p><p>Own·Id:·OTP-19572</p></li><li><p>The·license·and·copyright·header·has·changed·format·to·include·an·<code·class="inline">SPDX-License-Identifier</code>.·At·the·same·time,·most·files·have·been·updated·to·follow·a·uniform·standard·for·license·headers.</p><p>Own·Id:·OTP-19575·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9670"·title="">PR-9670</a></p></li></ul><h2·id="snmp-5-18-2"·class="section-heading"> |
| 143 | ··<a·href="#snmp-5-18-2"·class="hover-link"> | 143 | ··<a·href="#snmp-5-18-2"·class="hover-link"> |
| 144 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 144 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 145 | ··</a> | 145 | ··</a> |
| 146 | ··<span·class="text">SNMP·5.18.2</span> | 146 | ··<span·class="text">SNMP·5.18.2</span> |
| 147 | </h2> | 147 | </h2> |
| 148 | <h3·id="fixed-bugs-and-malfunctions"·class="section-heading"> | 148 | <h3·id="fixed-bugs-and-malfunctions"·class="section-heading"> |
| 149 | ··<a·href="#fixed-bugs-and-malfunctions"·class="hover-link"> | 149 | ··<a·href="#fixed-bugs-and-malfunctions"·class="hover-link"> |
| Offset 1141, 15 lines modified | Offset 1141, 15 lines modified | ||
| 1141 | ······<p·class="built-using"> | 1141 | ······<p·class="built-using"> |
| 1142 | ········Built·using | 1142 | ········Built·using |
| 1143 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1143 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1144 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1144 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1145 | ······</p> | 1145 | ······</p> |
| 1146 | <p>Copyright·©·1996-202 | 1146 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1147 | ····</footer> | 1147 | ····</footer> |
| 1148 | ··</div> | 1148 | ··</div> |
| 1149 | </main> | 1149 | </main> |
| 1150 | </div> | 1150 | </div> |
| 1151 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1151 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1152 | ··<script> | 1152 | ··<script> |
| 1153 | ··let·initialized·=·false; | 1153 | ··let·initialized·=·false; |
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| 141 | ······<p·class="built-using"> | 141 | ······<p·class="built-using"> |
| 142 | ········Built·using | 142 | ········Built·using |
| 143 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 143 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 144 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 144 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 145 | ······</p> | 145 | ······</p> |
| 146 | <p>Copyright·©·1996-202 | 146 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 147 | ····</footer> | 147 | ····</footer> |
| 148 | ··</div> | 148 | ··</div> |
| 149 | </main> | 149 | </main> |
| 150 | </div> | 150 | </div> |
| 151 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 151 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 152 | ··<script> | 152 | ··<script> |
| 153 | ··let·initialized·=·false; | 153 | ··let·initialized·=·false; |
| Offset 3195, 16 lines modified | Offset 3195, 16 lines modified | ||
| 3195 | ······<div·class="specs"> | 3195 | ······<div·class="specs"> |
| 3196 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·print_version_info(Prefix)·->·<a·href="#t:void/0">void</a>()·when·Prefix·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:string/0">string</a>()·|·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:non_neg_integer/0">non_neg_integer</a>().</pre> | 3196 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·print_version_info(Prefix)·->·<a·href="#t:void/0">void</a>()·when·Prefix·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:string/0">string</a>()·|·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:non_neg_integer/0">non_neg_integer</a>().</pre> |
| 3197 | ······</div> | 3197 | ······</div> |
| 3198 | <p>Utility·function(s)·to·produce·a·formatted·printout·of·the·versions·info | 3198 | <p>Utility·function(s)·to·produce·a·formatted·printout·of·the·versions·info |
| 3199 | generated·by·the·<code·class="inline">versions1</code>·function</p><p>This·is·the·same·as·doing,·e.g.:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">···········</span><span·class="p"·data-group-id="0089193870-1">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">V</span><span·class="p"·data-group-id="0089193870-1">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">snmp</span><span·class="p">:</span><span·class="nf">versions1</span><span·class="p"·data-group-id="0089193870-2">(</span><span·class="p"·data-group-id="0089193870-2">)</span><span·class="p">,</span><span·class="w"> | ||
| 3200 | 3199 | generated·by·the·<code·class="inline">versions1</code>·function</p><p>This·is·the·same·as·doing,·e.g.:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">···········</span><span·class="p"·data-group-id="3715438474-1">{</span><span·class="ss[·...·truncated·by·diffoscope;·len:·438,·SHA:·238280a4870877120fdf660b379d15a781a2569bd11d8a2c488ee10406ee2d85·...·]> | |
| 3200 | ···········</span><span·class="nc">snmp</span><span·class="p">:</span><span·class="nf">print_versions</span><span·class="p"·data-group-id="3715438474-3">(</span><span·class="n">V</span><span·class="p"·data-group-id="3715438474-3">)</span><span·class="p">.</span></code></pre> | ||
| 3201 | ··</section> | 3201 | ··</section> |
| 3202 | </section> | 3202 | </section> |
| 3203 | <section·class="detail"·id="print_versions/1"> | 3203 | <section·class="detail"·id="print_versions/1"> |
| 3204 | ··<div·class="detail-header"> | 3204 | ··<div·class="detail-header"> |
| 3205 | ····<a·href="#print_versions/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 3205 | ····<a·href="#print_versions/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 3206 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 3206 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 3253, 16 lines modified | Offset 3253, 16 lines modified | ||
| 3253 | ····························Prefix·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:string/0">string</a>()·|·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:non_neg_integer/0">non_neg_integer</a>(), | 3253 | ····························Prefix·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:string/0">string</a>()·|·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:non_neg_integer/0">non_neg_integer</a>(), |
| 3254 | ····························Versions·::·[VersionInfo], | 3254 | ····························Versions·::·[VersionInfo], |
| 3255 | ····························VersionInfo·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>().</pre> | 3255 | ····························VersionInfo·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>().</pre> |
| 3256 | ······</div> | 3256 | ······</div> |
| 3257 | <p>Utility·function·to·produce·a·formatted·printout·of·the·versions·info·generated | 3257 | <p>Utility·function·to·produce·a·formatted·printout·of·the·versions·info·generated |
| 3258 | by·the·<code·class="inline">versions1</code>·and·<code·class="inline">versions2</code>·functions</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">···········</span><span·class="p"·data-group-id="7978858656-1">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">V</span><span·class="p"·data-group-id="7978858656-1">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">snmp</span><span·class="p">:</span><span·class="nf">versions1</span><span·class="p"·data-group-id="7978858656-2">(</span><span·class="p"·data-group-id="7978858656-2">)</span><span·class="p">,</span><span·class="w"> | ||
| 3259 | 3258 | by·the·<code·class="inline">versions1</code>·and·<code·class="inline">versions2</code>·functions</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">···········</span><span·class="p"·data-group-id="1578536281-1">{</span><span·[·...·truncated·by·diffoscope;·len:·447,·SHA:·4319747349604cc3ec3eeebb5226ff34738dd07edba308a04f92b34944ee127c·...·]> | |
| 3259 | ···········</span><span·class="nc">snmp</span><span·class="p">:</span><span·class="nf">print_versions</span><span·class="p"·data-group-id="1578536281-3">(</span><span·class="n">V</span><span·class="p"·data-group-id="1578536281-3">)</span><span·class="p">.</span></code></pre> | ||
| 3260 | ··</section> | 3260 | ··</section> |
| 3261 | </section> | 3261 | </section> |
| 3262 | <section·class="detail"·id="read_mib/1"> | 3262 | <section·class="detail"·id="read_mib/1"> |
| 3263 | ··<div·class="detail-header"> | 3263 | ··<div·class="detail-header"> |
| 3264 | ····<a·href="#read_mib/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 3264 | ····<a·href="#read_mib/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 3265 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 3265 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 3382, 25 lines modified | Offset 3382, 25 lines modified | ||
| 3382 | ·······················TraceOpt·::·{timestamp,·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:boolean/0">boolean</a>()}·|·TargetOpt.</pre> | 3382 | ·······················TraceOpt·::·{timestamp,·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:boolean/0">boolean</a>()}·|·TargetOpt.</pre> |
| 3383 | ······</div> | 3383 | ······</div> |
| 3384 | <p>This·function·is·used·to·set·up·trace·on·function(s)·for·the·given·module·or | 3384 | <p>This·function·is·used·to·set·up·trace·on·function(s)·for·the·given·module·or |
| 3385 | modules.</p><p>The·example·below·sets·up·trace·on·the·exported·functions·(default)·of·module | 3385 | modules.</p><p>The·example·below·sets·up·trace·on·the·exported·functions·(default)·of·module |
| 3386 | <code·class="inline">snmp_generic</code>·and·all·functions·of·module·<code·class="inline">snmp_generic_mnesia</code>.·With·return | 3386 | <code·class="inline">snmp_generic</code>·and·all·functions·of·module·<code·class="inline">snmp_generic_mnesia</code>.·With·return |
| 3387 | values·(which·is·default)·and·timestamps·in·both·cases·(which·is·also·default):</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">» ··</span><span·class="nc">snmp</span><span·class="p">:</span><span·class="nf">enable_trace</span><span·class="p"·data-group-id=" | 3387 | values·(which·is·default)·and·timestamps·in·both·cases·(which·is·also·default):</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">» ··</span><span·class="nc">snmp</span><span·class="p">:</span><span·class="nf">enable_trace</span><span·class="p"·data-group-id="2275959815-1">(</span><span·class="p"·data-group-id="2275959815-1">)</span><span·class="p">,</span><span·class="w"> |
| 3388 | » ··</span><span·class="nc">snmp</span><span·class="p">:</span><span·class="nf">set_trace</span><span·class="p"·data-group-id=" | 3388 | » ··</span><span·class="nc">snmp</span><span·class="p">:</span><span·class="nf">set_trace</span><span·class="p"·data-group-id="2275959815-2">(</span><span·class="p"·data-group-id="2275959815-3">[</span><span·class="ss">snmp_generic</span><span·class="p">,</span><span·class="w"> |
| 3389 | ··························</span><span·class="p"·data-group-id=" | 3389 | ··························</span><span·class="p"·data-group-id="2275959815-4">{</span><span·class="ss">snmp_generic_mnesia</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2275959815-5">[</span><span·class="p"·data-group-id="2275959815-6">{</span><span·class="ss">scope</span><span·cl[·...·truncated·by·diffoscope;·len:·330,·SHA:·232330bfe3c05f2d17858129609a3733817c677124349201764826ff3e52f086·...·]-2">)</span><span·class="p">,</span><span·class="w"> |
| 3390 | » ··</span><span·class="p">.</span><span·class="w"> | 3390 | » ··</span><span·class="p">.</span><span·class="w"> |
| 3391 | » ··</span><span·class="p">.</span><span·class="w"> | 3391 | » ··</span><span·class="p">.</span><span·class="w"> |
| 3392 | » ··</span><span·class="p">.</span><span·class="w"> | 3392 | » ··</span><span·class="p">.</span><span·class="w"> |
| 3393 | ··········</span><span·class="nc">snmp</span><span·class="p">:</span><span·class="nf">set_trace</span><span·class="p"·data-group-id=" | 3393 | ··········</span><span·class="nc">snmp</span><span·class="p">:</span><span·class="nf">set_trace</span><span·class="p"·data-group-id="2275959815-7">(</span><span·class="ss">snmp_generic</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">disable</span><span·class="p"·data-group-id="2275959815-7">)</span><span·class="p">,</span><span·class="w"> |
| 3394 | » ··</span><span·class="p">.</span><span·class="w"> | 3394 | » ··</span><span·class="p">.</span><span·class="w"> |
| 3395 | » ··</span><span·class="p">.</span><span·class="w"> | 3395 | » ··</span><span·class="p">.</span><span·class="w"> |
| 3396 | » ··</span><span·class="p">.</span><span·class="w"> | 3396 | » ··</span><span·class="p">.</span><span·class="w"> |
| 3397 | » ··</span><span·class="nc">snmp</span><span·class="p">:</span><span·class="nf">disable_trace</span><span·class="p"·data-group-id=" | 3397 | » ··</span><span·class="nc">snmp</span><span·class="p">:</span><span·class="nf">disable_trace</span><span·class="p"·data-group-id="2275959815-8">(</span><span·class="p"·data-group-id="2275959815-8">)</span><span·class="p">,</span></code></pre> |
| 3398 | ··</section> | 3398 | ··</section> |
| 3399 | </section> | 3399 | </section> |
| 3400 | <section·class="detail"·id="start/0"> | 3400 | <section·class="detail"·id="start/0"> |
| 3401 | ··<div·class="detail-header"> | 3401 | ··<div·class="detail-header"> |
| 3402 | ····<a·href="#start/0"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 3402 | ····<a·href="#start/0"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 3403 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 3403 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 3762, 15 lines modified | Offset 3762, 15 lines modified | ||
| 3762 | ······<p·class="built-using"> | 3762 | ······<p·class="built-using"> |
| 3763 | ········Built·using | 3763 | ········Built·using |
| 3764 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 3764 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 3765 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 3765 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 3766 | ······</p> | 3766 | ······</p> |
| 3767 | <p>Copyright·©·1996-202 | 3767 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 3768 | ····</footer> | 3768 | ····</footer> |
| 3769 | ··</div> | 3769 | ··</div> |
| 3770 | </main> | 3770 | </main> |
| 3771 | </div> | 3771 | </div> |
| 3772 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 3772 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 3773 | ··<script> | 3773 | ··<script> |
| 3774 | ··let·initialized·=·false; | 3774 | ··let·initialized·=·false; |
| Offset 325, 74 lines modified | Offset 325, 74 lines modified | ||
| 325 | ·······::=·{·empTable·1·} | 325 | ·······::=·{·empTable·1·} |
| 326 | ·······EmpEntry·::= | 326 | ·······EmpEntry·::= |
| 327 | ··············SEQUENCE·{ | 327 | ··············SEQUENCE·{ |
| 328 | ··················empDepNo·········INTEGER, | 328 | ··················empDepNo·········INTEGER, |
| 329 | ··················empName··········DisplayString, | 329 | ··················empName··········DisplayString, |
| 330 | ··················empTelNo·········DisplayString, | 330 | ··················empTelNo·········DisplayString, |
| 331 | ··················empStatus········RowStatus | 331 | ··················empStatus········RowStatus |
| 332 | ··············}</code></pre><p>The·corresponding·Mnesia·table·is·specified·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">create_table</span><span·class="p"·data-group-id=" | 332 | ··············}</code></pre><p>The·corresponding·Mnesia·table·is·specified·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">create_table</span><span·class="p"·data-group-id="8248803917-1">(</span><span·class="p"·data-group-id="8248803917-2">[</span><span·class="p"·data-group-id="8248803917-3">{</span><span·class="ss">name</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">employees</span><span·class="p"·dat[·...·truncated·by·diffoscope;·len:·22,·SHA:·0d291cce2476c76dd37128d0388c85c8a7dd8f1934a885d9064f35d4434772d4·...·]-3">}</span><span·class="p">,</span><span·class="w"> |
| 333 | ·····················</span><span·class="p"·data-group-id=" | 333 | ·····················</span><span·class="p"·data-group-id="8248803917-4">{</span><span·class="ss">snmp</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8248803917-5">[</span><span·class="p"·data-group-id="8248803917-6">{</span><span·class="ss">key</span><span·class="p">,</span><[·...·truncated·by·diffoscope;·len:·385,·SHA:·ab6808a929f6d3af5db370c566e8e40cf0560743665c71d09c0429429991551c·...·]-4">}</span><span·class="p">,</span><span·class="w"> |
| 334 | ·····················</span><span·class="p"·data-group-id=" | 334 | ·····················</span><span·class="p"·data-group-id="8248803917-8">{</span><span·class="ss">attributes</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8248803917-9">[</span><span·class="ss">key</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">telno</[·...·truncated·by·diffoscope;·len:·287,·SHA:·1373607119e70f7a8e833adc821547dd4c35f2d600f4737a8f70cffc71773cc1·...·]-1">)</span><span·class="p">.</span></code></pre><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>In·the·Mnesia·tables,·the·two·key·columns·are·stored·as·a·tuple·with·two |
| 335 | elements.·Therefore,·the·arity·of·the·table·is·3.</p></section><h3·id="instrumentation-functions"·class="section-heading"> | 335 | elements.·Therefore,·the·arity·of·the·table·is·3.</p></section><h3·id="instrumentation-functions"·class="section-heading"> |
| 336 | ··<a·href="#instrumentation-functions"·class="hover-link"> | 336 | ··<a·href="#instrumentation-functions"·class="hover-link"> |
| 337 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 337 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 338 | ··</a> | 338 | ··</a> |
| 339 | ··<span·class="text">Instrumentation·Functions</span> | 339 | ··<span·class="text">Instrumentation·Functions</span> |
| 340 | </h3> | 340 | </h3> |
| 341 | <p>The·MIB·table·shown·in·the·previous·section·can·be·compiled·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">snmpc</span><span·class="p">:</span><span·class="nf">compile</span><span·class="p"·data-group-id=" | 341 | <p>The·MIB·table·shown·in·the·previous·section·can·be·compiled·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">snmpc</span><span·class="p">:</span><span·class="nf">compile</span><span·class="p"·data-group-id="3576134277-1">(</span><span·class="s">"EmpMIB"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3576134277-2">[</span><span·class="p"·data-group-id="3576134277-3">{</span><span·class="ss">db</span><span·class="[·...·truncated·by·diffoscope;·len:·212,·SHA:·d7a9a5e0045595fc258215863e2bfaa59c43d2236907cfb84f421e41cd26b799·...·]-1">)</span><span·class="p">.</span></code></pre><p>This·is·all·that·has·to·be·done!·Now·the·manager·can·read,·add,·and·modify |
| 342 | rows.·Also,·you·can·use·the·ordinary·Mnesia·API·to·access·the·table·from·your | 342 | rows.·Also,·you·can·use·the·ordinary·Mnesia·API·to·access·the·table·from·your |
| 343 | programs.·The·only·explicit·action·is·to·create·the·Mnesia·table,·an·action·the | 343 | programs.·The·only·explicit·action·is·to·create·the·Mnesia·table,·an·action·the |
| 344 | user·has·to·perform·in·order·to·create·the·required·table·schemas.</p><h3·id="adding-own-actions"·class="section-heading"> | 344 | user·has·to·perform·in·order·to·create·the·required·table·schemas.</p><h3·id="adding-own-actions"·class="section-heading"> |
| 345 | ··<a·href="#adding-own-actions"·class="hover-link"> | 345 | ··<a·href="#adding-own-actions"·class="hover-link"> |
| 346 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 346 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 347 | ··</a> | 347 | ··</a> |
| 348 | ··<span·class="text">Adding·Own·Actions</span> | 348 | ··<span·class="text">Adding·Own·Actions</span> |
| 349 | </h3> | 349 | </h3> |
| 350 | <p>It·is·often·necessary·to·take·some·specific·action·when·a·table·is·modified. | 350 | <p>It·is·often·necessary·to·take·some·specific·action·when·a·table·is·modified. |
| 351 | This·is·accomplished·with·an·instrumentation·function.·It·executes·some·specific | 351 | This·is·accomplished·with·an·instrumentation·function.·It·executes·some·specific |
| 352 | code·when·the·table·is·set,·and·passes·all·other·requests·down·to·the | 352 | code·when·the·table·is·set,·and·passes·all·other·requests·down·to·the |
| 353 | pre-defined·function.</p><p>The·following·example·illustrates·this·idea:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">emp_table</span><span·class="p"·data-group-id=" | 353 | pre-defined·function.</p><p>The·following·example·illustrates·this·idea:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">emp_table</span><span·class="p"·data-group-id="2223863959-1">(</span><span·class="ss">set</span><span·class="p">,</span><span·class="w">·</span><span·class="n">RowIndex</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Cols</span><span·class="p"·data-group-id="2223863959-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 354 | ····</span><span·class="nf">notify_internal_resources</span><span·class="p"·data-group-id=" | 354 | ····</span><span·class="nf">notify_internal_resources</span><span·class="p"·data-group-id="2223863959-2">(</span><span·class="n">RowIndex</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Cols</span><span·class="p"·data-group-id="2223863959-2">)</span><span·class="p">,</span><span·class="w"> |
| 355 | ····</span><span·class="nc">snmp_generic</span><span·class="p">:</span><span·class="nf">table_func</span><span·class="p"·data-group-id=" | 355 | ····</span><span·class="nc">snmp_generic</span><span·class="p">:</span><span·class="nf">table_func</span><span·class="p"·data-group-id="2223863959-3">(</span><span·class="ss">set</span><span·class="p">,</span><span·class="w">·</span><span·class="n">RowIndex</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Cols</span><span·class="p">,</span><span·class="w">·</span><span[·...·truncated·by·diffoscope;·len:·252,·SHA:·f2ee0263039e09e9d4a742f7c9cf555d5634eedfe9fb36c29e402505c1066737·...·]-3">)</span><span·class="p">;</span><span·class="w"> |
| 356 | </span><span·class="nf">emp_table</span><span·class="p"·data-group-id=" | 356 | </span><span·class="nf">emp_table</span><span·class="p"·data-group-id="2223863959-5">(</span><span·class="n">Op</span><span·class="p">,</span><span·class="w">·</span><span·class="n">RowIndex</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Cols</span><span·class="p"·data-group-id="2223863959-5">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 357 | ····</span><span·class="nc">snmp_generic</span><span·class="p">:</span><span·class="nf">table_func</span><span·class="p"·data-group-id=" | 357 | ····</span><span·class="nc">snmp_generic</span><span·class="p">:</span><span·class="nf">table_func</span><span·class="p"·data-group-id="2223863959-6">(</span><span·class="n">Op</span><span·class="p">,</span><span·class="w">·</span><span·class="n">RowIndex</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Cols</span><span·class="p">,</span><span·class="w">·</span><span·c[·...·truncated·by·diffoscope;·len:·250,·SHA:·333cbdf20fbb700bf04016270cd7b63d4e5f775053afb6051e68d7522be80d91·...·]-6">)</span><span·class="p">.</span></code></pre><p>The·default·instrumentation·functions·are·defined·in·the·module·<code·class="inline">snmp_generic</code>. |
| 358 | Refer·to·the·Reference·Manual,·section·SNMP,·module·<code·class="inline">snmp_generic</code>·for·details.</p><h3·id="extending-the-mnesia-table"·class="section-heading"> | 358 | Refer·to·the·Reference·Manual,·section·SNMP,·module·<code·class="inline">snmp_generic</code>·for·details.</p><h3·id="extending-the-mnesia-table"·class="section-heading"> |
| 359 | ··<a·href="#extending-the-mnesia-table"·class="hover-link"> | 359 | ··<a·href="#extending-the-mnesia-table"·class="hover-link"> |
| 360 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 360 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 361 | ··</a> | 361 | ··</a> |
| 362 | ··<span·class="text">Extending·the·Mnesia·Table</span> | 362 | ··<span·class="text">Extending·the·Mnesia·Table</span> |
| 363 | </h3> | 363 | </h3> |
| 364 | <p>A·table·may·contain·columns·that·are·used·internally,·but·should·not·be·visible | 364 | <p>A·table·may·contain·columns·that·are·used·internally,·but·should·not·be·visible |
| 365 | to·a·manager.·These·internal·columns·must·be·the·last·columns·in·the·table.·The | 365 | to·a·manager.·These·internal·columns·must·be·the·last·columns·in·the·table.·The |
| 366 | <code·class="inline">set</code>·operation·will·not·work·with·this·arrangement,·because·there·are·columns | 366 | <code·class="inline">set</code>·operation·will·not·work·with·this·arrangement,·because·there·are·columns |
| 367 | that·the·agent·does·not·know·about.·This·situation·is·handled·by·adding·values | 367 | that·the·agent·does·not·know·about.·This·situation·is·handled·by·adding·values |
| 368 | for·the·internal·columns·in·the·<code·class="inline">set</code>·function.</p><p>To·illustrate·this,·suppose·we·extend·our·Mnesia·<code·class="inline">empTable</code>·with·one·internal | 368 | for·the·internal·columns·in·the·<code·class="inline">set</code>·function.</p><p>To·illustrate·this,·suppose·we·extend·our·Mnesia·<code·class="inline">empTable</code>·with·one·internal |
| 369 | column.·We·create·it·as·before,·but·with·an·arity·of·4,·by·adding·another | 369 | column.·We·create·it·as·before,·but·with·an·arity·of·4,·by·adding·another |
| 370 | attribute.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">create_table</span><span·class="p"·data-group-id=" | 370 | attribute.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">mnesia</span><span·class="p">:</span><span·class="nf">create_table</span><span·class="p"·data-group-id="6856275620-1">(</span><span·class="p"·data-group-id="6856275620-2">[</span><span·class="p"·data-group-id="6856275620-3">{</span><span·class="ss">name</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">employees</span><span·class="p"·dat[·...·truncated·by·diffoscope;·len:·21,·SHA:·5d615e5c8231ccbd31f961cb160bdb0268898bc48a8e87289bccd79f6d4847f6·...·]0-3">}</span><span·class="p">,</span><span·class="w"> |
| 371 | ·····················</span><span·class="p"·data-group-id=" | 371 | ·····················</span><span·class="p"·data-group-id="6856275620-4">{</span><span·class="ss">snmp</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6856275620-5">[</span><span·class="p"·data-group-id="6856275620-6">{</span><span·class="ss">key</span><span·class="p">,</span><[·...·truncated·by·diffoscope;·len:·384,·SHA:·d652a78a6f9d01e06d25d7cd9874983b8bb12a2857d7652bacdd223712fab679·...·]0-4">}</span><span·class="p">,</span><span·class="w"> |
| 372 | ·····················</span><span·class="p"·data-group-id=" | 372 | ·····················</span><span·class="p"·data-group-id="6856275620-8">{</span><span·class="ss">attributes</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6856275620-9">{</span><span·class="ss">key</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">telno</[·...·truncated·by·diffoscope;·len:·370,·SHA:·a9ac21380820e7f7bad758a311363b430c02ed7c4fe6d6407a1539bdbc2e43fb·...·]0-1">)</span><span·class="p">.</span></code></pre><p>The·last·column·is·the·internal·column.·When·performing·a·<code·class="inline">set</code>·operation,·which |
| 373 | creates·a·row,·we·must·give·a·value·to·the·internal·column.·The·instrumentation | 373 | creates·a·row,·we·must·give·a·value·to·the·internal·column.·The·instrumentation |
| 374 | functions·will·now·look·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">define</span><span·class="p"·data-group-id=" | 374 | functions·will·now·look·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">define</span><span·class="p"·data-group-id="2080581395-1">(</span><span·class="ss">createAndGo</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">4</span><span·class="p"·data-group-id="2080581395-1">)</span><span·class="p">.</span><span·class="w"> |
| 375 | </span><span·class="p">-</span><span·class="na">define</span><span·class="p"·data-group-id=" | 375 | </span><span·class="p">-</span><span·class="na">define</span><span·class="p"·data-group-id="2080581395-2">(</span><span·class="ss">createAndWait</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">5</span><span·class="p"·data-group-id="2080581395-2">)</span><span·class="p">.</span><span·class="w"> |
| 376 | </span><span·class="nf">emp_table</span><span·class="p"·data-group-id=" | 376 | </span><span·class="nf">emp_table</span><span·class="p"·data-group-id="2080581395-3">(</span><span·class="ss">set</span><span·class="p">,</span><span·class="w">·</span><span·class="n">RowIndex</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Cols</span><span·class="p"·data-group-id="2080581395-3">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 377 | ··</span><span·class="nf">notify_internal_resources</span><span·class="p"·data-group-id=" | 377 | ··</span><span·class="nf">notify_internal_resources</span><span·class="p"·data-group-id="2080581395-4">(</span><span·class="n">RowIndex</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Cols</span><span·class="p"·data-group-id="2080581395-4">)</span><span·class="p">,</span><span·class="w"> |
| 378 | ··</span><span·class="n">NewCols</span><span·class="w">·</span><span·class="o">=</span><span·class="w"> | 378 | ··</span><span·class="n">NewCols</span><span·class="w">·</span><span·class="o">=</span><span·class="w"> |
| 379 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nf">is_row_created</span><span·class="p"·data-group-id=" | 379 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nf">is_row_created</span><span·class="p"·data-group-id="2080581395-5">(</span><span·class="ss">empTable</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Cols</span><span·class="p"·data-group-id="2080581395-5">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 380 | ······</span><span·class="ss">true</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">Cols</span><span·class="w">·</span><span·class="o">++</span><span·class="w">·</span><span·class="p"·data-group-id=" | 380 | ······</span><span·class="ss">true</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">Cols</span><span·class="w">·</span><span·class="o">++</span><span·class="w">·</span><span·class="p"·data-group-id="2080581395-6">[</span><span·class="p"·data-group-id="2080581395-7">{</span><span·class="mi">4</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"internal"</span><span·class="p"·data-group-id="2080581395-7">}</span><span·class=[·...·truncated·by·diffoscope;·len:·29,·SHA:·a7576b3bd2af3f45111951a0b01d8a80ee211546300161dab47a77ab10767371·...·]-6">]</span><span·class="p">;</span><span·class="w">·</span><span·class="c1">%·add·internal·column</span><span·class="w"> |
| 381 | ······</span><span·class="ss">false</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">Cols</span><span·class="w">······················</span><span·class="c1">%·keep·original·cols</span><span·class="w"> | 381 | ······</span><span·class="ss">false</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">Cols</span><span·class="w">······················</span><span·class="c1">%·keep·original·cols</span><span·class="w"> |
| 382 | ··</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> | 382 | ··</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> |
| 383 | ··</span><span·class="nc">snmp_generic</span><span·class="p">:</span><span·class="nf">table_func</span><span·class="p"·data-group-id=" | 383 | ··</span><span·class="nc">snmp_generic</span><span·class="p">:</span><span·class="nf">table_func</span><span·class="p"·data-group-id="2080581395-8">(</span><span·class="ss">set</span><span·class="p">,</span><span·class="w">·</span><span·class="n">RowIndex</span><span·class="p">,</span><span·class="w">·</span><span·class="n">NewCols</span><span·class="p">,</span><span·class="w">·</span><s[·...·truncated·by·diffoscope;·len:·255,·SHA:·357b24ebf464ff331ce6154b5f7fde4110577a0e3d4737bf3344878d07eb3506·...·]-8">)</span><span·class="p">;</span><span·class="w"> |
| 384 | </span><span·class="nf">emp_table</span><span·class="p"·data-group-id=" | 384 | </span><span·class="nf">emp_table</span><span·class="p"·data-group-id="2080581395-10">(</span><span·class="n">Op</span><span·class="p">,</span><span·class="w">·</span><span·class="n">RowIndex</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Cols</span><span·class="p"·data-group-id="2080581395-10">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 385 | ··</span><span·class="nc">snmp_generic</span><span·class="p">:</span><span·class="nf">table_func</span><span·class="p"·data-group-id=" | 385 | ··</span><span·class="nc">snmp_generic</span><span·class="p">:</span><span·class="nf">table_func</span><span·class="p"·data-group-id="2080581395-11">(</span><span·class="n">Op</span><span·class="p">,</span><span·class="w">·</span><span·class="n">RowIndex</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Cols</span><span·class="p">,</span><span·class="w">·</span><span·[·...·truncated·by·diffoscope;·len:·253,·SHA:·4e3208bb841edd8ed6ed738f4db244e9f3a46f1bcd6ffb10bf8bb0f0644143bd·...·]-11">)</span><span·class="p">.</span><span·class="w"> |
| 386 | </span><span·class="nf">is_row_created</span><span·class="p"·data-group-id=" | 386 | </span><span·class="nf">is_row_created</span><span·class="p"·data-group-id="2080581395-13">(</span><span·class="n">Name</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Cols</span><span·class="p"·data-group-id="2080581395-13">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 387 | ··</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">snmp_generic</span><span·class="p">:</span><span·class="nf">get_status_col</span><span·class="p"·data-group-id=" | 387 | ··</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">snmp_generic</span><span·class="p">:</span><span·class="nf">get_status_col</span><span·class="p"·data-group-id="2080581395-14">(</span><span·class="n">Name</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Cols</span><span·class="p"·data-group-id="2080581395-14">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 388 | ····</span><span·class="p"·data-group-id=" | 388 | ····</span><span·class="p"·data-group-id="2080581395-15">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="o">?</span><span·class="ss">createAndGo</span><span·class="p"·data-group-id="2080581395-15">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">true</span><span·class="p">;</span><span·class="w"> |
| 389 | ····</span><span·class="p"·data-group-id=" | 389 | ····</span><span·class="p"·data-group-id="2080581395-16">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="o">?</span><span·class="ss">createAndWait</span><span·class="p"·data-group-id="2080581395-16">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">true</span><span·class="p">;</span><span·class="w"> |
| 390 | ····</span><span·class="p">_</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">false</span><span·class="w"> | 390 | ····</span><span·class="p">_</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">false</span><span·class="w"> |
| 391 | ··</span><span·class="k">end</span><span·class="p">.</span></code></pre><p>If·a·row·is·created,·we·always·set·the·internal·column·to·<code·class="inline">"internal"</code>.</p><h2·id="deviations-from-the-standard"·class="section-heading"> | 391 | ··</span><span·class="k">end</span><span·class="p">.</span></code></pre><p>If·a·row·is·created,·we·always·set·the·internal·column·to·<code·class="inline">"internal"</code>.</p><h2·id="deviations-from-the-standard"·class="section-heading"> |
| 392 | ··<a·href="#deviations-from-the-standard"·class="hover-link"> | 392 | ··<a·href="#deviations-from-the-standard"·class="hover-link"> |
| 393 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 393 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 394 | ··</a> | 394 | ··</a> |
| 395 | ··<span·class="text">Deviations·from·the·Standard</span> | 395 | ··<span·class="text">Deviations·from·the·Standard</span> |
| 396 | </h2> | 396 | </h2> |
| Offset 453, 15 lines modified | Offset 453, 15 lines modified | ||
| 453 | ······<p·class="built-using"> | 453 | ······<p·class="built-using"> |
| 454 | ········Built·using | 454 | ········Built·using |
| 455 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 455 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 456 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 456 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 457 | ······</p> | 457 | ······</p> |
| 458 | <p>Copyright·©·1996-202 | 458 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 459 | ····</footer> | 459 | ····</footer> |
| 460 | ··</div> | 460 | ··</div> |
| 461 | </main> | 461 | </main> |
| 462 | </div> | 462 | </div> |
| 463 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 463 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 464 | ··<script> | 464 | ··<script> |
| 465 | ··let·initialized·=·false; | 465 | ··let·initialized·=·false; |
| Offset 146, 38 lines modified | Offset 146, 38 lines modified | ||
| 146 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 146 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 147 | ··</a> | 147 | ··</a> |
| 148 | ··<span·class="text">Agent·Information</span> | 148 | ··<span·class="text">Agent·Information</span> |
| 149 | </h2> | 149 | </h2> |
| 150 | <p>The·agent·information·should·be·stored·in·a·file·called·<code·class="inline">agent.conf</code>.</p><p>Each·entry·is·a·tuple·of·size·two:</p><p><code·class="inline">{AgentVariable,·Value}.</code></p><ul><li><code·class="inline">AgentVariable</code>·is·one·of·the·variables·in·SNMP-FRAMEWORK-MIB·or·one·of·the | 150 | <p>The·agent·information·should·be·stored·in·a·file·called·<code·class="inline">agent.conf</code>.</p><p>Each·entry·is·a·tuple·of·size·two:</p><p><code·class="inline">{AgentVariable,·Value}.</code></p><ul><li><code·class="inline">AgentVariable</code>·is·one·of·the·variables·in·SNMP-FRAMEWORK-MIB·or·one·of·the |
| 151 | internal·variables·<code·class="inline">intAgentUDPPort</code>,·which·defines·which·UDP·port·the·agent | 151 | internal·variables·<code·class="inline">intAgentUDPPort</code>,·which·defines·which·UDP·port·the·agent |
| 152 | listens·to,·or·<code·class="inline">intAgentTransports</code>,·which·defines·the·transport·domains·and | 152 | listens·to,·or·<code·class="inline">intAgentTransports</code>,·which·defines·the·transport·domains·and |
| 153 | addresses·of·the·agent.</li><li><code·class="inline">Value</code>·is·the·value·for·the·variable.</li></ul><p>The·following·example·shows·an·<code·class="inline">agent.conf</code>·file:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 153 | addresses·of·the·agent.</li><li><code·class="inline">Value</code>·is·the·value·for·the·variable.</li></ul><p>The·following·example·shows·an·<code·class="inline">agent.conf</code>·file:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="8754650940-1">{</span><span·class="ss">intAgentUDPPort</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">4000</span><span·class="p"·data-group-id="8754650940-1">}</span><span·class="p">.</span><span·class="w"> |
| 154 | </span><span·class="p"·data-group-id=" | 154 | </span><span·class="p"·data-group-id="8754650940-2">{</span><span·class="ss">intAgentTransports</span><span·class="p">,</span><span·class="w"> |
| 155 | ·</span><span·class="p"·data-group-id=" | 155 | ·</span><span·class="p"·data-group-id="8754650940-3">[</span><span·class="p"·data-group-id="8754650940-4">{</span><span·class="ss">transportDomainUdpIpv4</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8754650940-5">{</span><span·class="mi">141</span><span·c[·...·truncated·by·diffoscope;·len:·238,·SHA:·1ce04fa7189775c0c5d8b8822c9dc888ffd330fdc404947054db36019834ffbf·...·]-4">}</span><span·class="p">,</span><span·class="w"> |
| 156 | ··</span><span·class="p"·data-group-id=" | 156 | ··</span><span·class="p"·data-group-id="8754650940-6">{</span><span·class="ss">transportDomainUdpIpv6</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8754650940-7">{</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="[·...·truncated·by·diffoscope;·len:·481,·SHA:·314f087a6810b7e59f5d69946abb99fbab387208cd861a2073eddc550f821fea·...·]-2">}</span><span·class="p">.</span><span·class="w"> |
| 157 | </span><span·class="p"·data-group-id=" | 157 | </span><span·class="p"·data-group-id="8754650940-8">{</span><span·class="ss">snmpEngineID</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"mbj's·engine"</span><span·class="p"·data-group-id="8754650940-8">}</span><span·class="p">.</span><span·class="w"> |
| 158 | </span><span·class="p"·data-group-id=" | 158 | </span><span·class="p"·data-group-id="8754650940-9">{</span><span·class="ss">snmpEngineMaxMessageSize</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">484</span><span·class="p"·data-group-id="8754650940-9">}</span><span·class="p">.</span></code></pre><p>And·this·is·a·code·(snippet)·example·of·how·to·generate·this·file·in·runtime:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">AgentDir</span><span·class="w">····</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"/tmp"</span><span·class="p">,</span><span·class="w"> |
| 159 | </span><span·class="n">AgentPort</span><span·class="w">···</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">4000</span><span·class="p">,</span><span·class="w"> | 159 | </span><span·class="n">AgentPort</span><span·class="w">···</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">4000</span><span·class="p">,</span><span·class="w"> |
| 160 | </span><span·class="n">Transports</span><span·class="w">··</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 160 | </span><span·class="n">Transports</span><span·class="w">··</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="7361687253-1">[</span><span·class="p"·data-group-id="7361687253-2">{</span><span·class="ss">transportDomainUdpIpv4</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="7361687253-3">{</span><span·class="mi">141</span><span·c[·...·truncated·by·diffoscope;·len:·238,·SHA:·c6fc30502aec6f8847451d26ed278d1cce6007e873e8b439978a605bbd776a8c·...·]-2">}</span><span·class="p">,</span><span·class="w"> |
| 161 | ···············</span><span·class="p"·data-group-id=" | 161 | ···············</span><span·class="p"·data-group-id="7361687253-4">{</span><span·class="ss">transportDomainUdpIpv6</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="7361687253-5">{</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="[·...·truncated·by·diffoscope;·len:·428,·SHA:·0eac1c46b20b07bda8d4e6a4a35aced847acb51f7bcc223a92e7b40442d52ca1·...·]-1">]</span><span·class="p">,</span><span·class="w"> |
| 162 | </span><span·class="n">EngineID</span><span·class="w">····</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"mbj's·engine"</span><span·class="p">,</span><span·class="w"> | 162 | </span><span·class="n">EngineID</span><span·class="w">····</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"mbj's·engine"</span><span·class="p">,</span><span·class="w"> |
| 163 | </span><span·class="n">MMS</span><span·class="w">·········</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">484</span><span·class="p">,</span><span·class="w"> | 163 | </span><span·class="n">MMS</span><span·class="w">·········</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">484</span><span·class="p">,</span><span·class="w"> |
| 164 | </span><span·class="n">AgentConfig</span><span·class="w">·</span><span·class="o">=</span><span·class="w"> | 164 | </span><span·class="n">AgentConfig</span><span·class="w">·</span><span·class="o">=</span><span·class="w"> |
| 165 | ···</span><span·class="p"·data-group-id=" | 165 | ···</span><span·class="p"·data-group-id="7361687253-6">[</span><span·class="nc">snmpa_conf</span><span·class="p">:</span><span·class="nf">agent_entry</span><span·class="p"·data-group-id="7361687253-7">(</span><span·class="ss">intAgentUDPPort</span><span·class="p">,</span><span·class="w">·········[·...·truncated·by·diffoscope;·len:·81,·SHA:·790bfb36674f1cf483d29083e6eb7589713474e18d1304c91fe6a4d6fdb046ea·...·]-7">)</span><span·class="p">,</span><span·class="w"> |
| 166 | ····</span><span·class="nc">snmpa_conf</span><span·class="p">:</span><span·class="nf">agent_entry</span><span·class="p"·data-group-id=" | 166 | ····</span><span·class="nc">snmpa_conf</span><span·class="p">:</span><span·class="nf">agent_entry</span><span·class="p"·data-group-id="7361687253-8">(</span><span·class="ss">intAgentTransports</span><span·class="p">,</span><span·class="w">·······</span><span·class="n">Transports</span><span·class="p"·data-group-id="7361687253-8">)</span><span·class="p">,</span><span·class="w"> |
| 167 | ····</span><span·class="nc">snmpa_conf</span><span·class="p">:</span><span·class="nf">agent_entry</span><span·class="p"·data-group-id=" | 167 | ····</span><span·class="nc">snmpa_conf</span><span·class="p">:</span><span·class="nf">agent_entry</span><span·class="p"·data-group-id="7361687253-9">(</span><span·class="ss">snmpEngineID</span><span·class="p">,</span><span·class="w">·············</span><span·class="n">EngineID</span><span·class="p"·data-group-id="7361687253-9">)</span><span·class="p">,</span><span·class="w"> |
| 168 | ····</span><span·class="nc">snmpa_conf</span><span·class="p">:</span><span·class="nf">agent_entry</span><span·class="p"·data-group-id=" | 168 | ····</span><span·class="nc">snmpa_conf</span><span·class="p">:</span><span·class="nf">agent_entry</span><span·class="p"·data-group-id="7361687253-10">(</span><span·class="ss">snmpEngineMaxMessageSize</span><span·class="p">,</span><span·class="w">·</span><span·class="n">MMS</span><span·class="p"·data-group-id="7361687253-10">)</span><span·class="p"·data-group-id="7361687253-6">]</span><span·class="p">,</span><span·class="w"> |
| 169 | </span><span·class="nc">snmpa_conf</span><span·class="p">:</span><span·class="nf">write_agent_config</span><span·class="p"·data-group-id=" | 169 | </span><span·class="nc">snmpa_conf</span><span·class="p">:</span><span·class="nf">write_agent_config</span><span·class="p"·data-group-id="7361687253-11">(</span><span·class="n">AgentDir</span><span·class="p">,</span><span·class="w">·</span><span·class="n">AgentConfig</span><span·class="p"·data-group-id="7361687253-11">)</span><span·class="p">,</span></code></pre><p>These·are·the·supported·en[·...·truncated·by·diffoscope;·len:·435,·SHA:·0fd7d1f60a02a1880912c78e615a2df12713285d22ae97abd7d57c8b4abf4da3·...·]-1">}</span><span·class="p">.</span><span·class="w">·····················</span><span·class="c1">%·Mandatory</span><span·class="w"> |
| 170 | ······</span><span·class="p"·data-group-id=" | 170 | ······</span><span·class="p"·data-group-id="3570685263-3">{</span><span·class="ss">snmpEngineMaxMessageSize</span><span·class="p">,</span><span·class="w">·</span><span·class="nc">snmp_framework_mib</span><span·class="p">:</span><span·class="nf">max_message_size</span><span·class="p"·data-group-id="3[·...·truncated·by·diffoscope;·len:·115,·SHA:·d794d6009f6067d80e8a89f196620f6936d171bac5ca84abd7d49b57078d7317·...·]-3">}</span><span·class="p">.</span><span·class="w">··</span><span·class="c1">%·Mandatory</span><span·class="w"> |
| 171 | ······</span><span·class="p"·data-group-id="7651474447-5">{</span><span·class="ss">intAgentUDPPort</span><span·class="p">,</span><span·class="w">··········</span><span·class="nc">inet</span><span·class="p">:</span><span·class="nf">port_number</span><span·class="p"·data-group-id="7651474447-6">(</span><span·class="p"·data-group-id="7651474447-6">)</span><span·class="p"·data-group-id="7651474447-5">}</span><span·class="p">.</span><span·class="w">······················</span><span·class="c1">%·Optional</span><span·class="w"> | ||
| 172 | ······</span><span·class="p"·data-group-id=" | 171 | ······</span><span·class="p"·data-group-id="3570685263-5">{</span><span·class="ss">intAgentUDPPort</span><span·class="p">,</span><span·class="w">··········</span><span·class="nc">inet</span><span·class="p">:</span><span·class="nf">port_number</span><span·class="p"·data-group-id="3570685263-6">(</spa[·...·truncated·by·diffoscope;·len:·227,·SHA:·56f2b975b2765b12c33f179d814c68f09491940cf44724eb48db11a392121cfc·...·] |
| 172 | ······</span><span·class="p"·data-group-id="3570685263-7">{</span><span·class="ss">intAgentTransports</span><span·class="p">,</span><span·class="w">·······</span><span·class="p"·data-group-id="3570685263-8">[</span><span·class="nc">snmpa_conf</span><span·class="p">:</span><span·class="nf">intAgentTransport</span><span·class="p"·data-group-id="3570685263-9">(</span><span·class="p"·data-group-id="3570685263-9">)</span><span·class="p"·data-group-id="3570685263-8">]</span><span·class="p"·data-group-id="3570685263-7">}</span><span·class="p">.</span><span·class="w">···</span><span·class="c1">%·Mandatory</span></code></pre><p>If·a·"traditional"·transport·is·specified·(without·explicit·<code·class="inline">Kind</code>,·handling | ||
| 173 | both·requests·and·traps)·for·a·transport·domain,·its·<em>not</em>·possible·to·also | 173 | both·requests·and·traps)·for·a·transport·domain,·its·<em>not</em>·possible·to·also |
| 174 | specify·a·transport·(for·that·domain)·with·a·specific·<code·class="inline">Kind</code>.·This·is·for | 174 | specify·a·transport·(for·that·domain)·with·a·specific·<code·class="inline">Kind</code>.·This·is·for |
| 175 | example,·<em>not</em>·allowed:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">·</span><span·class="p"·data-group-id="8688768437-1">[</span><span·class="p"·data-group-id="8688768437-2">{</span><span·class="ss">transportDomainUdpIpv4</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8688768437-3">{</span><span·class="p"·data-group-id="8688768437-4">{</span><span·class="mi">141</span><span·class="p">,</span><span·class="mi">213</span><span·class="p">,</span><span·class="mi">11</span><span·class="p">,</span><span·class="mi">24</span><span·class="p"·data-group-id="8688768437-4">}</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">4000</span><span·class="p"·data-group-id="8688768437-3">}</span><span·class="p"·data-group-id="8688768437-2">}</span><span·class="p">,</span><span·class="w"> | ||
| 176 | 175 | example,·<em>not</em>·allowed:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">·</span><span·class="p"·data-group-id="9521837275-1">[</span><span·class="p"·data-group-id="9521837275-2">{</span><span·class="ss">transportDomainUdpIpv4</spa[·...·truncated·by·diffoscope;·len:·609,·SHA:·6ad5385a597fabe049a080ee260d0a1ae8b11749c3cfcb4ab2840821957eec2c·...·] | |
| 176 | ··</span><span·class="p"·data-group-id="9521837275-5">{</span><span·class="ss">transportDomainUdpIpv4</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9521837275-6">{</span><span·class="p"·data-group-id="9521837275-7">{</span><span·class="mi">141</span><span·class="p">,</span><span·class="mi">213</span><span·class="p">,</span><span·class="mi">11</span><span·class="p">,</span><span·class="mi">24</span><span·class="p"·data-group-id="9521837275-7">}</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">4001</span><span·class="p"·data-group-id="9521837275-6">}</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">trap_sender</span><span·class="p"·data-group-id="9521837275-5">}</span><span·class="p"·data-group-id="9521837275-1">]</span><span·class="p">.</span></code></pre><p>Note·that·only·one·transport·per·kind·for·each·transport·domain·can·be | ||
| 177 | configured.</p><p><code·class="inline">PortInfo</code>·<code·class="inline">system</code>·is·used·to·indicate·that·the·'system'·should·choose·(the·way | 177 | configured.</p><p><code·class="inline">PortInfo</code>·<code·class="inline">system</code>·is·used·to·indicate·that·the·'system'·should·choose·(the·way |
| 178 | port·number·'0'·(zero)·is·normally·used).·Port·info·'0'·(zero)·cannot·be·used | 178 | port·number·'0'·(zero)·is·normally·used).·Port·info·'0'·(zero)·cannot·be·used |
| 179 | for·this,·since·it·is·(internally)·used·to·represent·the·'default'·port·number.</p><p>In·the·traditional·transport·entries,·when·the·<code·class="inline">Addr</code>·value·does·not·contain·a | 179 | for·this,·since·it·is·(internally)·used·to·represent·the·'default'·port·number.</p><p>In·the·traditional·transport·entries,·when·the·<code·class="inline">Addr</code>·value·does·not·contain·a |
| 180 | port·number,·the·value·of·<code·class="inline">intAgentUDPPort</code>·is·used.</p><p>Note·that·the·(new)·extended·transport·entries·(including·<code·class="inline">Kind</code>·and·<code·class="inline">Opts</code>) | 180 | port·number,·the·value·of·<code·class="inline">intAgentUDPPort</code>·is·used.</p><p>Note·that·the·(new)·extended·transport·entries·(including·<code·class="inline">Kind</code>·and·<code·class="inline">Opts</code>) |
| 181 | <em>must</em>·specify·port-info·as·they·ignore·any·value·specified·by | 181 | <em>must</em>·specify·port-info·as·they·ignore·any·value·specified·by |
| 182 | <code·class="inline">intAgentUDPPort</code>.</p><p><code·class="inline">Opts</code>·is·the·same·as·for·the·<a·href="snmp_config.html#agent_ni_opts">net-if</a>·process | 182 | <code·class="inline">intAgentUDPPort</code>.</p><p><code·class="inline">Opts</code>·is·the·same·as·for·the·<a·href="snmp_config.html#agent_ni_opts">net-if</a>·process |
| 183 | <em>and</em>·takes·precedence·(for·that·transport)·if·present.·The·point·is·that·each | 183 | <em>and</em>·takes·precedence·(for·that·transport)·if·present.·The·point·is·that·each |
| Offset 190, 77 lines modified | Offset 190, 77 lines modified | ||
| 190 | ··</a> | 190 | ··</a> |
| 191 | ··<span·class="text">Contexts</span> | 191 | ··<span·class="text">Contexts</span> |
| 192 | </h2> | 192 | </h2> |
| 193 | <p>The·context·information·should·be·stored·in·a·file·called·<code·class="inline">context.conf</code>.·The | 193 | <p>The·context·information·should·be·stored·in·a·file·called·<code·class="inline">context.conf</code>.·The |
| 194 | default·context·<code·class="inline">""</code>·need·not·be·present.</p><p>Each·row·defines·a·context·in·the·agent.·This·information·is·used·in·the·table | 194 | default·context·<code·class="inline">""</code>·need·not·be·present.</p><p>Each·row·defines·a·context·in·the·agent.·This·information·is·used·in·the·table |
| 195 | <code·class="inline">vacmContextTable</code>·in·the·SNMP-VIEW-BASED-ACM-MIB.</p><p>Each·entry·is·a·term:</p><p><code·class="inline">ContextName.</code></p><ul><li><code·class="inline">ContextName</code>·is·a·string.</li></ul><p>And·this·is·a·code·(snippet)·example·of·how·to·generate·this·file·in·runtime:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">AgentDir</span><span·class="w">······</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"/tmp"</span><span·class="p">,</span><span·class="w"> | 195 | <code·class="inline">vacmContextTable</code>·in·the·SNMP-VIEW-BASED-ACM-MIB.</p><p>Each·entry·is·a·term:</p><p><code·class="inline">ContextName.</code></p><ul><li><code·class="inline">ContextName</code>·is·a·string.</li></ul><p>And·this·is·a·code·(snippet)·example·of·how·to·generate·this·file·in·runtime:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">AgentDir</span><span·class="w">······</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"/tmp"</span><span·class="p">,</span><span·class="w"> |
| 196 | </span><span·class="n">ContextConfig</span><span·class="w">·</span><span·class="o">=</span><span·class="w"> | 196 | </span><span·class="n">ContextConfig</span><span·class="w">·</span><span·class="o">=</span><span·class="w"> |
| 197 | ···</span><span·class="p"·data-group-id=" | 197 | ···</span><span·class="p"·data-group-id="9920483330-1">[</span><span·class="nc">snmpa_conf</span><span·class="p">:</span><span·class="nf">context_entry</span><span·class="p"·data-group-id="9920483330-2">(</span><span·class="s">"foo"</span><span·class="p"·data-group-id="9920483330-2">)</span><span·class="p">,</span><span·class="w"> |
| 198 | ····</span><span·class="nc">snmpa_conf</span><span·class="p">:</span><span·class="nf">context_entry</span><span·class="p"·data-group-id=" | 198 | ····</span><span·class="nc">snmpa_conf</span><span·class="p">:</span><span·class="nf">context_entry</span><span·class="p"·data-group-id="9920483330-3">(</span><span·class="s">"bar"</span><span·class="p"·data-group-id="9920483330-3">)</span><span·class="p"·data-group-id="9920483330-1">]</span><span·class="p">,</span><span·class="w"> |
| 199 | </span><span·class="nc">snmpa_conf</span><span·class="p">:</span><span·class="nf">write_context_config</span><span·class="p"·data-group-id=" | 199 | </span><span·class="nc">snmpa_conf</span><span·class="p">:</span><span·class="nf">write_context_config</span><span·class="p"·data-group-id="9920483330-4">(</span><span·class="n">AgentDir</span><span·class="p">,</span><span·class="w">·</span><span·class="n">ContextConfig</span><span·class="p"·data-group-id="9920483330-4">)</span><span·class="p">,</span></code></pre><p><a·href=""·id="system_information"></a></p><h2·id="system-information"·class="section-heading"> |
| 200 | ··<a·href="#system-information"·class="hover-link"> | 200 | ··<a·href="#system-information"·class="hover-link"> |
| 201 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 201 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 202 | ··</a> | 202 | ··</a> |
| 203 | ··<span·class="text">System·Information</span> | 203 | ··<span·class="text">System·Information</span> |
| 204 | </h2> | 204 | </h2> |
| 205 | <p>The·system·information·should·be·stored·in·a·file·called·<code·class="inline">standard.conf</code>.</p><p>Each·entry·is·a·tuple·of·size·two:</p><p><code·class="inline">{SystemVariable,·Value}.</code></p><ul><li><code·class="inline">SystemVariable</code>·is·one·of·the·variables·in·the·system·group,·or | 205 | <p>The·system·information·should·be·stored·in·a·file·called·<code·class="inline">standard.conf</code>.</p><p>Each·entry·is·a·tuple·of·size·two:</p><p><code·class="inline">{SystemVariable,·Value}.</code></p><ul><li><code·class="inline">SystemVariable</code>·is·one·of·the·variables·in·the·system·group,·or |
| 206 | <code·class="inline">snmpEnableAuthenTraps</code>.</li><li><code·class="inline">Value</code>·is·the·value·for·the·variable.</li></ul><p>The·following·example·shows·a·valid·<code·class="inline">standard.conf</code>·file:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 206 | <code·class="inline">snmpEnableAuthenTraps</code>.</li><li><code·class="inline">Value</code>·is·the·value·for·the·variable.</li></ul><p>The·following·example·shows·a·valid·<code·class="inline">standard.conf</code>·file:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="8439226609-1">{</span><span·class="ss">sysDescr</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"Erlang·SNMP·agent"</span><span·class="p"·data-group-id="8439226609-1">}</span><span·class="p">.</span><span·class="w"> |
| 207 | </span><span·class="p"·data-group-id=" | 207 | </span><span·class="p"·data-group-id="8439226609-2">{</span><span·class="ss">sysObjectID</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8439226609-3">[</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">2</span><span·class="p">,</span>[·...·truncated·by·diffoscope;·len:·119,·SHA:·76d6875c42ca5f7870b6db1ed2076bed0ef3c8b250ec54b498e93b2948f9b980·...·]-2">}</span><span·class="p">.</span><span·class="w"> |
| 208 | </span><span·class="p"·data-group-id=" | 208 | </span><span·class="p"·data-group-id="8439226609-4">{</span><span·class="ss">sysContact</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"(mbj,eklas)@erlang.ericsson.se"</span><span·class="p"·data-group-id="8439226609-4">}</span><span·class="p">.</span><span·class="w"> |
| 209 | </span><span·class="p"·data-group-id=" | 209 | </span><span·class="p"·data-group-id="8439226609-5">{</span><span·class="ss">sysName</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"test"</span><span·class="p"·data-group-id="8439226609-5">}</span><span·class="p">.</span><span·class="w"> |
| 210 | </span><span·class="p"·data-group-id=" | 210 | </span><span·class="p"·data-group-id="8439226609-6">{</span><span·class="ss">sysServices</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">72</span><span·class="p"·data-group-id="8439226609-6">}</span><span·class="p">.</span><span·class="w"> |
| 211 | </span><span·class="p"·data-group-id=" | 211 | </span><span·class="p"·data-group-id="8439226609-7">{</span><span·class="ss">snmpEnableAuthenTraps</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">enabled</span><span·class="p"·data-group-id="8439226609-7">}</span><span·class="p">.</span></code></pre><p>And·this·is·a·code·(snippet)·example·of·how·to·generate·this·file·in·runtime:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">AgentDir</span><span·class="w">··</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"/tmp"</span><span·class="p">,</span><span·class="w"> |
| 212 | </span><span·class="n">StdConfig</span><span·class="w">·</span><span·class="o">=</span><span·class="w"> | 212 | </span><span·class="n">StdConfig</span><span·class="w">·</span><span·class="o">=</span><span·class="w"> |
| 213 | ···</span><span·class="p"·data-group-id=" | 213 | ···</span><span·class="p"·data-group-id="4816359327-1">[</span><span·class="nc">snmpa_conf</span><span·class="p">:</span><span·class="nf">standard_entry</span><span·class="p"·data-group-id="4816359327-2">(</span><span·class="ss">sysDescr</span><span·class="p">,</span><span·class="w">····</span><s[·...·truncated·by·diffoscope;·len:·91,·SHA:·9c1a19fed256b8cc633fd4c441a55e1807c14544252e333984f060e679587abf·...·]-2">)</span><span·class="p">,</span><span·class="w"> |
| 214 | ····</span><span·class="nc">snmpa_conf</span><span·class="p">:</span><span·class="nf">standard_entry</span><span·class="p"·data-group-id=" | 214 | ····</span><span·class="nc">snmpa_conf</span><span·class="p">:</span><span·class="nf">standard_entry</span><span·class="p"·data-group-id="4816359327-3">(</span><span·class="ss">sysObjectID</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4816359327-4">[</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">2</span><span·class="p">,</span>[·...·truncated·by·diffoscope;·len:·119,·SHA:·91c47cc16020ca0daf816f5012e58bb4b73da74303a98e88c733cc14bc64fb8f·...·]-3">)</span><span·class="p">,</span><span·class="w"> |
| 215 | ····</span><span·class="nc">snmpa_conf</span><span·class="p">:</span><span·class="nf">standard_entry</span><span·class="p"·data-group-id=" | 215 | ····</span><span·class="nc">snmpa_conf</span><span·class="p">:</span><span·class="nf">standard_entry</span><span·class="p"·data-group-id="4816359327-5">(</span><span·class="ss">sysContact</span><span·class="p">,</span><span·class="w">··</span><span·class="s">"(mbj,eklas)@erlang.ericsson.se"</span><span·class="p"·data-group-id="4816359327-5">)</span><span·class="p">,</span><span·class="w"> |
| 216 | ····</span><span·class="nc">snmpa_conf</span><span·class="p">:</span><span·class="nf">standard_entry</span><span·class="p"·data-group-id=" | 216 | ····</span><span·class="nc">snmpa_conf</span><span·class="p">:</span><span·class="nf">standard_entry</span><span·class="p"·data-group-id="4816359327-6">(</span><span·class="ss">sysName</span><span·class="p">,</span><span·class="w">·····</span><span·class="s">"test"</span><span·class="p"·data-group-id="4816359327-6">)</span><span·class="p">,</span><span·class="w"> |
| 217 | ····</span><span·class="nc">snmpa_conf</span><span·class="p">:</span><span·class="nf">standard_entry</span><span·class="p"·data-group-id=" | 217 | ····</span><span·class="nc">snmpa_conf</span><span·class="p">:</span><span·class="nf">standard_entry</span><span·class="p"·data-group-id="4816359327-7">(</span><span·class="ss">sysServices</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">72</span><span·class="p"·data-group-id="4816359327-7">)</span><span·class="p">,</span><span·class="w"> |
| 218 | ····</span><span·class="nc">snmpa_conf</span><span·class="p">:</span><span·class="nf">standard_entry</span><span·class="p"·data-group-id=" | 218 | ····</span><span·class="nc">snmpa_conf</span><span·class="p">:</span><span·class="nf">standard_entry</span><span·class="p"·data-group-id="4816359327-8">(</span><span·class="ss">snmpEnableAuthenTraps</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">enabled</span><span·class="p"·data-group-id="4816359327-8">)</span><span·class="p"·data-group-id="4816359327-1">]</span><span·class="p">,</span><span·class="w"> |
| 219 | </span><span·class="nc">snmpa_conf</span><span·class="p">:</span><span·class="nf">write_standard_config</span><span·class="p"·data-group-id=" | 219 | </span><span·class="nc">snmpa_conf</span><span·class="p">:</span><span·class="nf">write_standard_config</span><span·class="p"·data-group-id="4816359327-9">(</span><span·class="n">AgentDir</span><span·class="p">,</span><span·class="w">·</span><span·class="n">StdConfig</span><span·class="p"·data-group-id="4816359327-9">)</span><span·class="p">,</span></code></pre><p>A·value·must·be·provided·for·all·variables,·which·lack·default·values·in·the |
| 220 | MIB.</p><p><a·href=""·id="community"></a></p><h2·id="communities"·class="section-heading"> | 220 | MIB.</p><p><a·href=""·id="community"></a></p><h2·id="communities"·class="section-heading"> |
| 221 | ··<a·href="#communities"·class="hover-link"> | 221 | ··<a·href="#communities"·class="hover-link"> |
| 222 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 222 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 223 | ··</a> | 223 | ··</a> |
| 224 | ··<span·class="text">Communities</span> | 224 | ··<span·class="text">Communities</span> |
| 225 | </h2> | 225 | </h2> |
| 226 | <p>The·community·information·should·be·stored·in·a·file·called·<code·class="inline">community.conf</code>.·It | 226 | <p>The·community·information·should·be·stored·in·a·file·called·<code·class="inline">community.conf</code>.·It |
| 227 | must·be·present·if·the·agent·is·configured·for·SNMPv1·or·SNMPv2c.</p><p>An·SNMP·<em>community</em>·is·a·relationship·between·an·SNMP·agent·and·a·set·of·SNMP | 227 | must·be·present·if·the·agent·is·configured·for·SNMPv1·or·SNMPv2c.</p><p>An·SNMP·<em>community</em>·is·a·relationship·between·an·SNMP·agent·and·a·set·of·SNMP |
| 228 | managers·that·defines·authentication,·access·control·and·proxy·characteristics.</p><p>The·corresponding·table·is·<code·class="inline">snmpCommunityTable</code>·in·the·SNMP-COMMUNITY-MIB.</p><p>Each·entry·is·a·term:</p><p><code·class="inline">{CommunityIndex,·CommunityName,·SecurityName,·ContextName,·TransportTag}.</code></p><ul><li><code·class="inline">CommunityIndex</code>·is·a·non-empty·string.</li><li><code·class="inline">CommunityName</code>·is·a·string.</li><li><code·class="inline">SecurityName</code>·is·a·string.</li><li><code·class="inline">ContextName</code>·is·a·string.</li><li><code·class="inline">TransportTag</code>·is·a·string.</li></ul><p>And·this·is·a·code·(snippet)·example·of·how·to·generate·this·file·in·runtime:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">AgentDir</span><span·class="w">········</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"/tmp"</span><span·class="p">,</span><span·class="w"> | 228 | managers·that·defines·authentication,·access·control·and·proxy·characteristics.</p><p>The·corresponding·table·is·<code·class="inline">snmpCommunityTable</code>·in·the·SNMP-COMMUNITY-MIB.</p><p>Each·entry·is·a·term:</p><p><code·class="inline">{CommunityIndex,·CommunityName,·SecurityName,·ContextName,·TransportTag}.</code></p><ul><li><code·class="inline">CommunityIndex</code>·is·a·non-empty·string.</li><li><code·class="inline">CommunityName</code>·is·a·string.</li><li><code·class="inline">SecurityName</code>·is·a·string.</li><li><code·class="inline">ContextName</code>·is·a·string.</li><li><code·class="inline">TransportTag</code>·is·a·string.</li></ul><p>And·this·is·a·code·(snippet)·example·of·how·to·generate·this·file·in·runtime:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">AgentDir</span><span·class="w">········</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"/tmp"</span><span·class="p">,</span><span·class="w"> |
| 229 | </span><span·class="n">CommunityConfig</span><span·class="w">·</span><span·class="o">=</span><span·class="w"> | 229 | </span><span·class="n">CommunityConfig</span><span·class="w">·</span><span·class="o">=</span><span·class="w"> |
| 230 | ···</span><span·class="p"·data-group-id=" | 230 | ···</span><span·class="p"·data-group-id="8954281764-1">[</span><span·class="nc">snmpa_conf</span><span·class="p">:</span><span·class="nf">community_entry</span><span·class="p"·data-group-id="8954281764-2">(</span><span·class="s">"public"</span><span·class="p"·data-group-id="8954281764-2">)</span><span·class="p">,</span><span·class="w"> |
| 231 | ····</span><span·class="nc">snmpa_conf</span><span·class="p">:</span><span·class="nf">community_entry</span><span·class="p"·data-group-id=" | 231 | ····</span><span·class="nc">snmpa_conf</span><span·class="p">:</span><span·class="nf">community_entry</span><span·class="p"·data-group-id="8954281764-3">(</span><span·class="s">"all-rights"</span><span·class="p"·data-group-id="8954281764-3">)</span><span·class="p">,</span><span·class="w"> |
| 232 | ····</span><span·class="nc">snmpa_conf</span><span·class="p">:</span><span·class="nf">community_entry</span><span·class="p"·data-group-id=" | 232 | ····</span><span·class="nc">snmpa_conf</span><span·class="p">:</span><span·class="nf">community_entry</span><span·class="p"·data-group-id="8954281764-4">(</span><span·class="s">"standard·trap"</span><span·class="p">,</span><span·class="w"> |
| 233 | ·······························</span><span·class="s">"standard·trap"</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"initial"</span><span·class="p">,</span><span·class="w">·</span><span·class="s">""</span><span·class="p">,</span><span·class="w">·</span><span·class="s">""</span><span·class="p"·data-group-id=" | 233 | ·······························</span><span·class="s">"standard·trap"</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"initial"</span><span·class="p">,</span><span·class="w">·</span><span·class="s">""</span><span·class="p">,</span><span·class="w">·</span><span·class="s">""</span><span·class="p"·data-group-id="8954281764-4">)</span><span·class="p"·data-group-id="8954281764-1">]</span><span·class="p">,</span><span·class="w"> |
| 234 | </span><span·class="nc">snmpa_conf</span><span·class="p">:</span><span·class="nf">write_community_config</span><span·class="p"·data-group-id=" | 234 | </span><span·class="nc">snmpa_conf</span><span·class="p">:</span><span·class="nf">write_community_config</span><span·class="p"·data-group-id="8954281764-5">(</span><span·class="n">AgentDir</span><span·class="p">,</span><span·class="w">·</span><span·class="n">CommunityConfig</span><span·class="p"·data-group-id="8954281764-5">)</span><span·class="p">,</span></code></pre><p><a·href=""·id="vacm"></a></p><h2·id="mib-views-for-vacm"·class="section-heading"> |
| 235 | ··<a·href="#mib-views-for-vacm"·class="hover-link"> | 235 | ··<a·href="#mib-views-for-vacm"·class="hover-link"> |
| 236 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 236 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 237 | ··</a> | 237 | ··</a> |
| 238 | ··<span·class="text">MIB·Views·for·VACM</span> | 238 | ··<span·class="text">MIB·Views·for·VACM</span> |
| 239 | </h2> | 239 | </h2> |
| 240 | <p>The·information·about·MIB·Views·for·VACM·should·be·stored·in·a·file·called | 240 | <p>The·information·about·MIB·Views·for·VACM·should·be·stored·in·a·file·called |
| 241 | <code·class="inline">vacm.conf</code>.</p><p>The·corresponding·tables·are·<code·class="inline">vacmSecurityToGroupTable</code>,·<code·class="inline">vacmAccessTable</code>·and | 241 | <code·class="inline">vacm.conf</code>.</p><p>The·corresponding·tables·are·<code·class="inline">vacmSecurityToGroupTable</code>,·<code·class="inline">vacmAccessTable</code>·and |
| 242 | <code·class="inline">vacmViewTreeFamilyTable</code>·in·the·SNMP-VIEW-BASED-ACM-MIB.</p><p>Each·entry·is·one·of·the·terms,·one·entry·corresponds·to·one·row·in·one·of·the | 242 | <code·class="inline">vacmViewTreeFamilyTable</code>·in·the·SNMP-VIEW-BASED-ACM-MIB.</p><p>Each·entry·is·one·of·the·terms,·one·entry·corresponds·to·one·row·in·one·of·the |
| 243 | tables.</p><p><code·class="inline">{vacmSecurityToGroup,·SecModel,·SecName,·GroupName}.</code></p><p><code·class="inline">{vacmAccess,·GroupName,·Prefix,·SecModel,·SecLevel,·Match,·ReadView,·WriteView,·NotifyView}.</code></p><p><code·class="inline">{vacmViewTreeFamily,·ViewIndex,·ViewSubtree,·ViewStatus,·ViewMask}.</code></p><ul><li><code·class="inline">SecModel</code>·is·<code·class="inline">any</code>,·<code·class="inline">v1</code>,·<code·class="inline">v2c</code>,·or·<code·class="inline">usm</code>.</li><li><code·class="inline">SecName</code>·is·a·string.</li><li><code·class="inline">GroupName</code>·is·a·string.</li><li><code·class="inline">Prefix</code>·is·a·string.</li><li><code·class="inline">SecLevel</code>·is·<code·class="inline">noAuthNoPriv</code>,·<code·class="inline">authNoPriv</code>,·or·<code·class="inline">authPriv</code></li><li><code·class="inline">Match</code>·is·<code·class="inline">prefix</code>·or·<code·class="inline">exact</code>.</li><li><code·class="inline">ReadView</code>·is·a·string.</li><li><code·class="inline">WriteView</code>·is·a·string.</li><li><code·class="inline">NotifyView</code>·is·a·string.</li><li><code·class="inline">ViewIndex</code>·is·an·integer.</li><li><code·class="inline">ViewSubtree</code>·is·a·list·of·integer.</li><li><code·class="inline">ViewStatus</code>·is·either·<code·class="inline">included</code>·or·<code·class="inline">excluded</code></li><li><code·class="inline">ViewMask</code>·is·either·<code·class="inline">null</code>·or·a·list·of·ones·and·zeros.·Ones·nominate·that·an | 243 | tables.</p><p><code·class="inline">{vacmSecurityToGroup,·SecModel,·SecName,·GroupName}.</code></p><p><code·class="inline">{vacmAccess,·GroupName,·Prefix,·SecModel,·SecLevel,·Match,·ReadView,·WriteView,·NotifyView}.</code></p><p><code·class="inline">{vacmViewTreeFamily,·ViewIndex,·ViewSubtree,·ViewStatus,·ViewMask}.</code></p><ul><li><code·class="inline">SecModel</code>·is·<code·class="inline">any</code>,·<code·class="inline">v1</code>,·<code·class="inline">v2c</code>,·or·<code·class="inline">usm</code>.</li><li><code·class="inline">SecName</code>·is·a·string.</li><li><code·class="inline">GroupName</code>·is·a·string.</li><li><code·class="inline">Prefix</code>·is·a·string.</li><li><code·class="inline">SecLevel</code>·is·<code·class="inline">noAuthNoPriv</code>,·<code·class="inline">authNoPriv</code>,·or·<code·class="inline">authPriv</code></li><li><code·class="inline">Match</code>·is·<code·class="inline">prefix</code>·or·<code·class="inline">exact</code>.</li><li><code·class="inline">ReadView</code>·is·a·string.</li><li><code·class="inline">WriteView</code>·is·a·string.</li><li><code·class="inline">NotifyView</code>·is·a·string.</li><li><code·class="inline">ViewIndex</code>·is·an·integer.</li><li><code·class="inline">ViewSubtree</code>·is·a·list·of·integer.</li><li><code·class="inline">ViewStatus</code>·is·either·<code·class="inline">included</code>·or·<code·class="inline">excluded</code></li><li><code·class="inline">ViewMask</code>·is·either·<code·class="inline">null</code>·or·a·list·of·ones·and·zeros.·Ones·nominate·that·an |
| 244 | exact·match·is·used·for·this·sub-identifier.·Zeros·are·wild-cards·which·match | 244 | exact·match·is·used·for·this·sub-identifier.·Zeros·are·wild-cards·which·match |
| 245 | any·sub-identifier.·If·the·mask·is·shorter·than·the·sub-tree,·the·tail·is | 245 | any·sub-identifier.·If·the·mask·is·shorter·than·the·sub-tree,·the·tail·is |
| 246 | regarded·as·all·ones.·<code·class="inline">null</code>·is·shorthand·for·a·mask·with·all·ones.</li></ul><p>And·this·is·a·code·(snippet)·example·of·how·to·generate·this·file·in·runtime:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">AgentDir</span><span·class="w">···</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"/tmp"</span><span·class="p">,</span><span·class="w"> | 246 | regarded·as·all·ones.·<code·class="inline">null</code>·is·shorthand·for·a·mask·with·all·ones.</li></ul><p>And·this·is·a·code·(snippet)·example·of·how·to·generate·this·file·in·runtime:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">AgentDir</span><span·class="w">···</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"/tmp"</span><span·class="p">,</span><span·class="w"> |
| 247 | </span><span·class="n">SecName</span><span·class="w">····</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"plain"</span><span·class="p">,</span><span·class="w"> | 247 | </span><span·class="n">SecName</span><span·class="w">····</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"plain"</span><span·class="p">,</span><span·class="w"> |
| 248 | </span><span·class="n">VacmConfig</span><span·class="w">·</span><span·class="o">=</span><span·class="w"> | 248 | </span><span·class="n">VacmConfig</span><span·class="w">·</span><span·class="o">=</span><span·class="w"> |
| 249 | ···</span><span·class="p"·data-group-id="1 | 249 | ···</span><span·class="p"·data-group-id="1779026258-1">[</span><span·class="c1">%%························SecModel,·SecName,·GroupName</span><span·class="w"> |
| 250 | ····</span><span·class="nc">snmpa_conf</span><span·class="p">:</span><span·class="nf">vacm_s2g_entry</span><span·class="p"·data-group-id="1 | 250 | ····</span><span·class="nc">snmpa_conf</span><span·class="p">:</span><span·class="nf">vacm_s2g_entry</span><span·class="p"·data-group-id="1779026258-2">(</span><span·class="ss">usm</span><span·class="p">,</span><span·class="w">·</span><span·class="n">SecName</span><span·class="p">,</span><span·class="w">·</span><span·class="n">SecName</span><span·class="p"·data-group-id="1779026258-2">)</span><span·class="p">,</span><span·class="w"> |
| 251 | ····</span><span·class="c1">%%························GroupName,·Prefix,·SecModel,</span><span·class="w"> | 251 | ····</span><span·class="c1">%%························GroupName,·Prefix,·SecModel,</span><span·class="w"> |
| 252 | ····</span><span·class="nc">snmpa_conf</span><span·class="p">:</span><span·class="nf">vacm_acc_entry</span><span·class="p"·data-group-id="1 | 252 | ····</span><span·class="nc">snmpa_conf</span><span·class="p">:</span><span·class="nf">vacm_acc_entry</span><span·class="p"·data-group-id="1779026258-3">(</span><span·class="n">SecName</span><span·class="p">,</span><span·class="w">·</span><span·class="s">""</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">any</span><span·class="p">,</span><span·class="w"> |
| 253 | ····</span><span·class="c1">%%························SecLevel,·Match,·RV,·WV,·NV</span><span·class="w"> | 253 | ····</span><span·class="c1">%%························SecLevel,·Match,·RV,·WV,·NV</span><span·class="w"> |
| 254 | ······························</span><span·class="ss">noAuthNoPriv</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">exact</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"all"</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"all"</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"all"</span><span·class="p"·data-group-id="1 | 254 | ······························</span><span·class="ss">noAuthNoPriv</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">exact</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"all"</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"all"</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"all"</span><span·class="p"·data-group-id="1779026258-3">)</span><span·class="p">,</span><span·class="w"> |
| 255 | ····</span><span·class="c1">%%························ViewName,·ViewSubtree,·ViewType,·ViewMask</span><span·class="w"> | 255 | ····</span><span·class="c1">%%························ViewName,·ViewSubtree,·ViewType,·ViewMask</span><span·class="w"> |
| 256 | ····</span><span·class="nc">snmpa_conf</span><span·class="p">:</span><span·class="nf">vacm_vtf_entry</span><span·class="p"·data-group-id="1 | 256 | ····</span><span·class="nc">snmpa_conf</span><span·class="p">:</span><span·class="nf">vacm_vtf_entry</span><span·class="p"·data-group-id="1779026258-4">(</span><span·class="s">"restricted"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1779026258-5">[</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">3</span><span·class="p"[·...·truncated·by·diffoscope;·len:·386,·SHA:·ab4f0fd1f2a7dd91c033f0d1ddd1c08593dec0cb647f922ca846230d583bfe23·...·]-1">]</span><span·class="p">,</span><span·class="w"> |
| 257 | </span><span·class="nc">snmpa_conf</span><span·class="p">:</span><span·class="nf">write_vacm_config</span><span·class="p"·data-group-id="1 | 257 | </span><span·class="nc">snmpa_conf</span><span·class="p">:</span><span·class="nf">write_vacm_config</span><span·class="p"·data-group-id="1779026258-6">(</span><span·class="n">AgentDir</span><span·class="p">,</span><span·class="w">·</span><span·class="n">VacmConfig</span><span·class="p"·data-group-id="1779026258-6">)</span><span·class="p">,</span></code></pre><p><a·href=""·id="usm"></a></p><h2·id="security-data-for-usm"·class="section-heading"> |
| 258 | ··<a·href="#security-data-for-usm"·class="hover-link"> | 258 | ··<a·href="#security-data-for-usm"·class="hover-link"> |
| 259 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 259 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 260 | ··</a> | 260 | ··</a> |
| 261 | ··<span·class="text">Security·data·for·USM</span> | 261 | ··<span·class="text">Security·data·for·USM</span> |
| 262 | </h2> | 262 | </h2> |
| 263 | <p>The·information·about·Security·data·for·USM·should·be·stored·in·a·file·called | 263 | <p>The·information·about·Security·data·for·USM·should·be·stored·in·a·file·called |
| 264 | <code·class="inline">usm.conf</code>,·which·must·be·present·if·the·agent·is·configured·for·SNMPv3.</p><p>The·corresponding·table·is·<code·class="inline">usmUserTable</code>·in·the·SNMP-USER-BASED-SM-MIB | 264 | <code·class="inline">usm.conf</code>,·which·must·be·present·if·the·agent·is·configured·for·SNMPv3.</p><p>The·corresponding·table·is·<code·class="inline">usmUserTable</code>·in·the·SNMP-USER-BASED-SM-MIB |
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| 271 | <code·class="inline">usmAesCfb128Protocol</code>.</p></li><li><p><code·class="inline">PrivKeyC</code>·is·a·string.</p></li><li><p><code·class="inline">OwnPrivKeyC</code>·is·a·string.</p></li><li><p><code·class="inline">Public</code>·is·a·string.</p></li><li><p><code·class="inline">AuthKey</code>·is·a·list·(of·integer).·This·is·the·User's·secret·localized | 271 | <code·class="inline">usmAesCfb128Protocol</code>.</p></li><li><p><code·class="inline">PrivKeyC</code>·is·a·string.</p></li><li><p><code·class="inline">OwnPrivKeyC</code>·is·a·string.</p></li><li><p><code·class="inline">Public</code>·is·a·string.</p></li><li><p><code·class="inline">AuthKey</code>·is·a·list·(of·integer).·This·is·the·User's·secret·localized |
| 272 | authentication·key.·It·is·not·visible·in·the·MIB.·The·length·(number·of | 272 | authentication·key.·It·is·not·visible·in·the·MIB.·The·length·(number·of |
| 273 | octets)·of·this·key·needs·to·be:</p><ul><li>16·if·<code·class="inline">usmHMACMD5AuthProtocol</code>.</li><li>20·if·<code·class="inline">usmHMACSHAAuthProtocol</code>.</li><li>28·if·<code·class="inline">usmHMAC128SHA224AuthProtocol</code>.</li><li>32·if·<code·class="inline">usmHMAC192SHA256AuthProtocol</code>.</li><li>48·if·<code·class="inline">usmHMAC256SHA384AuthProtocol</code>.</li><li>64·if·<code·class="inline">usmHMAC384SHA512AuthProtocol</code>.</li></ul></li><li><p><code·class="inline">PrivKey</code>·is·a·list·(of·integer).·This·is·the·User's·secret·localized | 273 | octets)·of·this·key·needs·to·be:</p><ul><li>16·if·<code·class="inline">usmHMACMD5AuthProtocol</code>.</li><li>20·if·<code·class="inline">usmHMACSHAAuthProtocol</code>.</li><li>28·if·<code·class="inline">usmHMAC128SHA224AuthProtocol</code>.</li><li>32·if·<code·class="inline">usmHMAC192SHA256AuthProtocol</code>.</li><li>48·if·<code·class="inline">usmHMAC256SHA384AuthProtocol</code>.</li><li>64·if·<code·class="inline">usmHMAC384SHA512AuthProtocol</code>.</li></ul></li><li><p><code·class="inline">PrivKey</code>·is·a·list·(of·integer).·This·is·the·User's·secret·localized |
| 274 | encryption·key.·It·is·not·visible·in·the·MIB.·The·length·of·this·key·needs·to | 274 | encryption·key.·It·is·not·visible·in·the·MIB.·The·length·of·this·key·needs·to |
| 275 | be·16·if·<code·class="inline">usmDESPrivProtocol</code>·or·<code·class="inline">usmAesCfb128Protocol</code>·is·used.</p></li></ul><p>And·this·is·a·code·(snippet)·example·of·how·to·generate·this·file·in·runtime:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">AgentDir</span><span·class="w">··</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"/tmp"</span><span·class="p">,</span><span·class="w"> | 275 | be·16·if·<code·class="inline">usmDESPrivProtocol</code>·or·<code·class="inline">usmAesCfb128Protocol</code>·is·used.</p></li></ul><p>And·this·is·a·code·(snippet)·example·of·how·to·generate·this·file·in·runtime:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">AgentDir</span><span·class="w">··</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"/tmp"</span><span·class="p">,</span><span·class="w"> |
| 276 | </span><span·class="n">EngineID</span><span·class="w">··</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"plain·engine"</span><span·class="w"> | 276 | </span><span·class="n">EngineID</span><span·class="w">··</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"plain·engine"</span><span·class="w"> |
| 277 | </span><span·class="n">Passwd</span><span·class="w">····</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"FooBar·Hoopla"</span><span·class="p">,</span><span·class="w">·</span><span·class="c1">%%·This·should·*obviously*·be·choosen·better</span><span·class="w"> | 277 | </span><span·class="n">Passwd</span><span·class="w">····</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"FooBar·Hoopla"</span><span·class="p">,</span><span·class="w">·</span><span·class="c1">%%·This·should·*obviously*·be·choosen·better</span><span·class="w"> |
| 278 | </span><span·class="n">Secret16</span><span·class="w">··</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">snmp</span><span·class="p">:</span><span·class="nf">passwd2localized_key</span><span·class="p"·data-group-id=" | 278 | </span><span·class="n">Secret16</span><span·class="w">··</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">snmp</span><span·class="p">:</span><span·class="nf">passwd2localized_key</span><span·class="p"·data-group-id="6235704807-1">(</span><span·class="nb">md5</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Passwd</span><span·class="p">,</span><span·class="w">·</span><span·class="n">EngineID</span><span·class="p"·data-group-id="6235704807-1">)</span><span·class="p">,</span><span·class="w"> |
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| 304 | This·MIB·can·be·used·with·any·SNMP·version.</li><li>SNMP-COMMUNITY-MIB,·which·defines·managed·objects·for·coexistence·of·SNMPv1 | 304 | This·MIB·can·be·used·with·any·SNMP·version.</li><li>SNMP-COMMUNITY-MIB,·which·defines·managed·objects·for·coexistence·of·SNMPv1 |
| 305 | and·SNMPv2c·with·SNMPv3.·This·MIB·is·only·useful·if·SNMPv1·or·SNMPv2c·is·used, | 305 | and·SNMPv2c·with·SNMPv3.·This·MIB·is·only·useful·if·SNMPv1·or·SNMPv2c·is·used, |
| 306 | possibly·in·combination·with·SNMPv3.</li><li>SNMP-USER-BASED-SM-MIB,·which·defines·managed·objects·for·authentication·and | 306 | possibly·in·combination·with·SNMPv3.</li><li>SNMP-USER-BASED-SM-MIB,·which·defines·managed·objects·for·authentication·and |
| 307 | privacy.·This·MIB·is·only·useful·with·SNMPv3.</li></ul><p>All·of·these·MIBs·should·be·loaded·into·the·Master·Agent.·Once·loaded,·these | 307 | privacy.·This·MIB·is·only·useful·with·SNMPv3.</li></ul><p>All·of·these·MIBs·should·be·loaded·into·the·Master·Agent.·Once·loaded,·these |
| 308 | MIBs·are·always·available·in·all·contexts.</p><p>The·ASN.1·code,·the·Erlang·source·code,·and·the·generated·<code·class="inline">.hrl</code>·files·for·them | 308 | MIBs·are·always·available·in·all·contexts.</p><p>The·ASN.1·code,·the·Erlang·source·code,·and·the·generated·<code·class="inline">.hrl</code>·files·for·them |
| 309 | are·provided·in·the·distribution·and·are·placed·in·the·directories·<code·class="inline">mibs</code>, | 309 | are·provided·in·the·distribution·and·are·placed·in·the·directories·<code·class="inline">mibs</code>, |
| 310 | <code·class="inline">src</code>,·and·<code·class="inline">include</code>,·respectively,·in·the·<code·class="inline">snmp</code>·application.</p><p>The·<code·class="inline">.hrl</code>·files·are·generated·with·<a·href="snmpc.html#mib_to_hrl/1"><code·class="inline">snmpc:mib_to_hrl/1</code></a>.·Include·these·files·in | 310 | <code·class="inline">src</code>,·and·<code·class="inline">include</code>,·respectively,·in·the·<code·class="inline">snmp</code>·application.</p><p>The·<code·class="inline">.hrl</code>·files·are·generated·with·<a·href="snmpc.html#mib_to_hrl/1"><code·class="inline">snmpc:mib_to_hrl/1</code></a>.·Include·these·files·in |
| 311 | your·code·as·in·the·following·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id=" | 311 | your·code·as·in·the·following·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id="2554356816-1">(</span><span·class="s">"snmp/include/SNMPv2-MIB.hrl"</span><span·class="p"·data-group-id="2554356816-1">)</span><span·class="p">.</span></code></pre><p>The·initial·values·for·the·managed·objects·defined·in·these·tables,·are·read·at |
| 312 | start-up·from·a·set·of·configuration·files.·These·are·described·in | 312 | start-up·from·a·set·of·configuration·files.·These·are·described·in |
| 313 | <a·href="snmp_config.html">Configuration·Files</a>.</p><h3·id="standard-mib-and-snmpv2-mib"·class="section-heading"> | 313 | <a·href="snmp_config.html">Configuration·Files</a>.</p><h3·id="standard-mib-and-snmpv2-mib"·class="section-heading"> |
| 314 | ··<a·href="#standard-mib-and-snmpv2-mib"·class="hover-link"> | 314 | ··<a·href="#standard-mib-and-snmpv2-mib"·class="hover-link"> |
| 315 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 315 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 316 | ··</a> | 316 | ··</a> |
| 317 | ··<span·class="text">STANDARD-MIB·and·SNMPv2-MIB</span> | 317 | ··<span·class="text">STANDARD-MIB·and·SNMPv2-MIB</span> |
| 318 | </h3> | 318 | </h3> |
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| 465 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 465 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 466 | ··</a> | 466 | ··</a> |
| 467 | ··<span·class="text">Notifications</span> | 467 | ··<span·class="text">Notifications</span> |
| 468 | </h2> | 468 | </h2> |
| 469 | <p>Notifications·are·defined·in·SMIv1·with·the·TRAP-TYPE·macro·in·the·definition·of | 469 | <p>Notifications·are·defined·in·SMIv1·with·the·TRAP-TYPE·macro·in·the·definition·of |
| 470 | an·MIB·(see·RFC1215).·The·corresponding·macro·in·SMIv2·is·NOTIFICATION-TYPE. | 470 | an·MIB·(see·RFC1215).·The·corresponding·macro·in·SMIv2·is·NOTIFICATION-TYPE. |
| 471 | When·an·application·decides·to·send·a·notification,·it·calls·one·of·the | 471 | When·an·application·decides·to·send·a·notification,·it·calls·one·of·the |
| 472 | following·functions:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">snmpa</span><span·class="p">:</span><span·class="nf">send_notification</span><span·class="p"·data-group-id=" | 472 | following·functions:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">snmpa</span><span·class="p">:</span><span·class="nf">send_notification</span><span·class="p"·data-group-id="5900523568-1">(</span><span·class="n">Agent</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Notification</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Receiver</span><span·class="w"> |
| 473 | ·······················</span><span·class="p"·data-group-id=" | 473 | ·······················</span><span·class="p"·data-group-id="5900523568-2">[</span><span·class="p">,</span><span·class="w">·</span><span·class="n">NotifyName</span><span·class="p">,</span><span·class="w">·</span><span·class="n">ContextName</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Varbind[·...·truncated·by·diffoscope;·len:·102,·SHA:·845274be35edb571f0f9f4dab7a724a1549da3470da346ca63ec22267d19598b·...·]-1">)</span><span·class="w"> |
| 474 | </span><span·class="nc">snmpa</span><span·class="p">:</span><span·class="nf">send_trap</span><span·class="p"·data-group-id=" | 474 | </span><span·class="nc">snmpa</span><span·class="p">:</span><span·class="nf">send_trap</span><span·class="p"·data-group-id="5900523568-3">(</span><span·class="n">Agent</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Notification</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Community</span><span·class="w">·</span><span·class="p"·dat[·...·truncated·by·diffoscope;·len:·286,·SHA:·631c50825195e2684ea91ece9c6e9553f96f444232a80a6786b941da26bbdb88·...·]-3">)</span></code></pre><p>providing·the·registered·name·or·process·identifier·of·the·agent·where·the·MIB, |
| 475 | which·defines·the·notification·is·loaded·and·the·symbolic·name·of·the | 475 | which·defines·the·notification·is·loaded·and·the·symbolic·name·of·the |
| 476 | notification.</p><p>If·the·<code·class="inline">send_notification/3,4</code>·function·is·used,·all·management·targets·are | 476 | notification.</p><p>If·the·<code·class="inline">send_notification/3,4</code>·function·is·used,·all·management·targets·are |
| 477 | selected,·as·defined·in·RFC2273.·The·<code·class="inline">Receiver</code>·parameter·defines·where·the | 477 | selected,·as·defined·in·RFC2273.·The·<code·class="inline">Receiver</code>·parameter·defines·where·the |
| 478 | agent·should·send·information·about·the·delivery·of·inform·requests.</p><p>If·the·<code·class="inline">send_notification/5</code>·function·is·used,·an·<code·class="inline">NotifyName</code>·must·be·provided. | 478 | agent·should·send·information·about·the·delivery·of·inform·requests.</p><p>If·the·<code·class="inline">send_notification/5</code>·function·is·used,·an·<code·class="inline">NotifyName</code>·must·be·provided. |
| 479 | This·parameter·is·used·as·an·index·in·the·<code·class="inline">snmpNotifyTable</code>,·and·the·management | 479 | This·parameter·is·used·as·an·index·in·the·<code·class="inline">snmpNotifyTable</code>,·and·the·management |
| 480 | targets·defined·by·that·single·entry·is·used.</p><p>The·<code·class="inline">send_notification/6</code>·function·is·the·most·general·version·of·the·function. | 480 | targets·defined·by·that·single·entry·is·used.</p><p>The·<code·class="inline">send_notification/6</code>·function·is·the·most·general·version·of·the·function. |
| 481 | A·<code·class="inline">ContextName</code>·must·be·specified,·from·which·the·notification·will·be·sent.·If | 481 | A·<code·class="inline">ContextName</code>·must·be·specified,·from·which·the·notification·will·be·sent.·If |
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| 611 | ······<p·class="built-using"> | 611 | ······<p·class="built-using"> |
| 612 | ········Built·using | 612 | ········Built·using |
| 613 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 613 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 614 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 614 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 615 | ······</p> | 615 | ······</p> |
| 616 | <p>Copyright·©·1996-202 | 616 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 617 | ····</footer> | 617 | ····</footer> |
| 618 | ··</div> | 618 | ··</div> |
| 619 | </main> | 619 | </main> |
| 620 | </div> | 620 | </div> |
| 621 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 621 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 622 | ··<script> | 622 | ··<script> |
| 623 | ··let·initialized·=·false; | 623 | ··let·initialized·=·false; |
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| 263 | ······<p·class="built-using"> | 263 | ······<p·class="built-using"> |
| 264 | ········Built·using | 264 | ········Built·using |
| 265 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 265 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 266 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 266 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 267 | ······</p> | 267 | ······</p> |
| 268 | <p>Copyright·©·1996-202 | 268 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 269 | ····</footer> | 269 | ····</footer> |
| 270 | ··</div> | 270 | ··</div> |
| 271 | </main> | 271 | </main> |
| 272 | </div> | 272 | </div> |
| 273 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 273 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 274 | ··<script> | 274 | ··<script> |
| 275 | ··let·initialized·=·false; | 275 | ··let·initialized·=·false; |
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| 136 | ··<a·href="#configuration"·class="hover-link"> | 136 | ··<a·href="#configuration"·class="hover-link"> |
| 137 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 137 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 138 | ··</a> | 138 | ··</a> |
| 139 | ··<span·class="text">Configuration</span> | 139 | ··<span·class="text">Configuration</span> |
| 140 | </h2> | 140 | </h2> |
| 141 | <p>The·following·configuration·parameters·are·defined·for·the·SNMP·application. | 141 | <p>The·following·configuration·parameters·are·defined·for·the·SNMP·application. |
| 142 | Refer·to·application(3)·for·more·information·about·configuration·parameters.</p><p>The·snmp·part·of·the·config·file·specifying·the·configuration·parameters·is | 142 | Refer·to·application(3)·for·more·information·about·configuration·parameters.</p><p>The·snmp·part·of·the·config·file·specifying·the·configuration·parameters·is |
| 143 | basically·the·following·tuple:</p><pre><code·class="text">······{snmp,·snmp_components_config()}</code></pre><p>A·minimal·config·file·for·starting·a·node·with·both·a·manager·and·an·agent:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">······</span><span·class="p"·data-group-id=" | 143 | basically·the·following·tuple:</p><pre><code·class="text">······{snmp,·snmp_components_config()}</code></pre><p>A·minimal·config·file·for·starting·a·node·with·both·a·manager·and·an·agent:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">······</span><span·class="p"·data-group-id="8838900489-1">[</span><span·class="p"·data-group-id="8838900489-2">{</span><span·class="ss">snmp</span><span·class="p">,</span><span·class="w"> |
| 144 | ········</span><span·class="p"·data-group-id="5420166603-3">[</span><span·class="p"·data-group-id="5420166603-4">{</span><span·class="ss">agent</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="5420166603-5">[</span><span·class="p"·data-group-id="5420166603-6">{</span><span·class="ss">db_dir</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"/tmp/snmp/agent/db"</span><span·class="p"·data-group-id="5420166603-6">}</span><span·class="p">,</span><span·class="w"> | ||
| 145 | ··················</span><span·class="p"·data-group-id="5420166603-7">{</span><span·class="ss">config</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="5420166603-8">[</span><span·class="p"·data-group-id="5420166603-9">{</span><span·class="ss">dir</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"/tmp/snmp/agent/conf"</span><span·class="p"·data-group-id="5420166603-9">}</span><span·class="p"·data-group-id="5420166603-8">]</span><span·class="p"·data-group-id="5420166603-7">}</span><span·class="p"·data-group-id="5420166603-5">]</span><span·class="p"·data-group-id="5420166603-4">}</span><span·class="p">,</span><span·class="w"> | ||
| 146 | ·········</span><span·class="p"·data-group-id="5420166603-10">{</span><span·class="ss">manager</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="5420166603-11">[</span><span·class="p"·data-group-id="5420166603-12">{</span><span·class="ss">config</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="5420166603-13">[</span><span·class="p"·data-group-id="5420166603-14">{</span><span·class="ss">dir</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"/tmp/snmp/manager/conf"</span><span·class="p"·data-group-id="5420166603-14">}</span><span·class="p">,</span><span·class="w"> | ||
| 147 | ·········· | 144 | ········</span><span·class="p"·data-group-id="8838900489-3">[</span><span·class="p"·data-group-id="8838900489-4">{</span><span·class="ss">agent</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8838900489-5">[</span><span·class="[·...·truncated·by·diffoscope;·len:·241,·SHA:·95317c1cbbf98e1462663ede01932fc10e1331496582e0ef753c8183641ebc61·...·]</span><span·class="w"> |
| 145 | ··················</span><span·class="p"·data-group-id="8838900489-7">{</span><span·class="ss">config</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8838900489-8">[</span><span·class="p"·data-group-id="8838900489-9">{</span><span·class="ss">dir</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"/tmp/snmp/agent/conf"</span><span·class="p"·data-group-id="8838900489-9">}</span><span·class="p"·data-group-id="8838900489-8">]</span><span·class="p"·data-group-id="8838900489-7">}</span><span·class="p"·data-group-id="8838900489-5">]</span><span·class="p"·data-group-id="8838900489-4">}</span><span·class="p">,</span><span·class="w"> | ||
| 146 | ·········</span><span·class="p"·data-group-id="8838900489-10">{</span><span·class="ss">manager</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8838900489-11">[</span><span·class="p"·data-group-id="8838900489-12">{</span><span·class="ss">config</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8838900489-13">[</span><span·class="p"·data-group-id="8838900489-14">{</span><span·class="ss">dir</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"/tmp/snmp/manager/conf"</span><span·class="p"·data-group-id="8838900489-14">}</span><span·class="p">,</span><span·class="w"> | ||
| 147 | ······························</span><span·class="p"·data-group-id="8838900489-15">{</span><span·class="ss">db_dir</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"/tmp/snmp/manager/db"</span><span·class="p"·data-group-id="8838900489-15">}</span><span·class="p"·data-group-id="8838900489-13">]</span><span·class="p"·data-group-id="8838900489-12">}</span><span·class="p"·data-group-id="8838900489-11">]</span><span·class="p"·data-group-id="8838900489-10">}</span><span·class="p"·data-group-id="8838900489-3">]</span><span·class="p"·data-group-id="8838900489-2">}</span><span·class="w"> | ||
| 148 | ········</span><span·class="p"·data-group-id=" | 148 | ········</span><span·class="p"·data-group-id="8838900489-1">]</span><span·class="w"> |
| 149 | ·······</span><span·class="p">}</span><span·class="w"> | 149 | ·······</span><span·class="p">}</span><span·class="w"> |
| 150 | ······</span><span·class="p">]</span><span·class="p">.</span></code></pre><p>Each·snmp·component·has·its·own·set·of·configuration·parameters,·even·though | 150 | ······</span><span·class="p">]</span><span·class="p">.</span></code></pre><p>Each·snmp·component·has·its·own·set·of·configuration·parameters,·even·though |
| 151 | some·of·the·types·are·common·to·both·components.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">······</span><span·class="nf">snmp_components_config</span><span·class="p"·data-group-id="0459710638-1">(</span><span·class="p"·data-group-id="0459710638-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="p"·data-group-id="0459710638-2">[</span><span·class="nf">snmp_component_config</span><span·class="p"·data-group-id="0459710638-3">(</span><span·class="p"·data-group-id="0459710638-3">)</span><span·class="p"·data-group-id="0459710638-2">]</span><span·class="w"> | ||
| 152 | 151 | some·of·the·types·are·common·to·both·components.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">······</span><span·class="nf">snmp_components_config</span><span·class="p"·data-group-id="9616420815-1">(</span><span·class="p"·data-group-i[·...·truncated·by·diffoscope;·len:·351,·SHA:·fba8f184f3a20836d5576375fa47b4c86cb40c16075d35e6c04d7ad2423f2195·...·]</span><span·class="w"> | |
| 152 | ······</span><span·class="nf">snmp_component_config</span><span·class="p"·data-group-id="9616420815-4">(</span><span·class="p"·data-group-id="9616420815-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="p"·data-group-id="9616420815-5">{</span><span·class="ss">agent</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">agent_options</span><span·class="p"·data-group-id="9616420815-6">(</span><span·class="p"·data-group-id="9616420815-6">)</span><span·class="p"·data-group-id="9616420815-5">}</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id="9616420815-7">{</span><span·class="ss">manager</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">manager_options</span><span·class="p"·data-group-id="9616420815-8">(</span><span·class="p"·data-group-id="9616420815-8">)</span><span·class="p"·data-group-id="9616420815-7">}</span><span·class="w"> | ||
| 153 | ······</span><span·class="nf">agent_options</span><span·class="p"·data-group-id=" | 153 | ······</span><span·class="nf">agent_options</span><span·class="p"·data-group-id="9616420815-9">(</span><span·class="p"·data-group-id="9616420815-9">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="9616420815-10">[</span><span·class="nf">agent_option</span><span·class="p"·dat[·...·truncated·by·diffoscope;·len:·130,·SHA:·46a39cea17401fdab16dce98c76ffaa82d19a1ca0698cd603e3331a9c7160916·...·]-10">]</span><span·class="w"> |
| 154 | ······</span><span·class="nf">agent_option</span><span·class="p"·data-group-id=" | 154 | ······</span><span·class="nf">agent_option</span><span·class="p"·data-group-id="9616420815-12">(</span><span·class="p"·data-group-id="9616420815-12">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="9616420815-13">{</span><span·class="ss">restart_type</span><span·class="p">,[·...·truncated·by·diffoscope;·len:·220,·SHA:·1d426132e58adb672c5bac9f63f811e4744a537ccf580f44271356cced0f0d64·...·]-13">}</span><span·class="w">·····</span><span·class="p">|</span><span·class="w"> |
| 155 | ·······················</span><span·class="p"·data-group-id=" | 155 | ·······················</span><span·class="p"·data-group-id="9616420815-15">{</span><span·class="ss">agent_type</span><span·class="p">,</span><span·class="w">·······</span><span·class="nf">agent_type</span><span·class="p"·data-group-id="9616420815-16">(</span><span·class="p"·data-group-id="9616420815-16">)</span><sp[·...·truncated·by·diffoscope;·len:·38,·SHA:·82319b100531c80fe31a4f8f7062682ced1e6853916fcba686a5e3c958c4b358·...·]-15">}</span><span·class="w">·······</span><span·class="p">|</span><span·class="w"> |
| 156 | ·······················</span><span·class="p"·data-group-id="0459710638-17">{</span><span·class="ss">agent_verbosity</span><span·class="p">,</span><span·class="w">··</span><span·class="nf">verbosity</span><span·class="p"·data-group-id="0459710638-18">(</span><span·class="p"·data-group-id="0459710638-18">)</span><span·class="p"·data-group-id="0459710638-17">}</span><span·class="w">········</span><span·class="p">|</span><span·class="w"> | ||
| 157 | ·······················</span><span·class="p"·data-group-id=" | 156 | ·······················</span><span·class="p"·data-group-id="9616420815-17">{</span><span·class="ss">agent_verbosity</span><span·class="p">,</span><span·class="w">··</span><span·class="nf">verbosity</span><span·class="p"·data-group-id="9616420815-18">(</span><span·class="p"·data-group-id="9616420815-18">)</span><spa[·...·truncated·by·diffoscope;·len:·72,·SHA:·19cfb5b4b9b1e21140c6fe3ad39f1355ef4e9a1731841a6a88aaf1649a412dbd·...·]··</span><span·class="p">|</span><span·class="w"> |
| 158 | ·······················</span><span·class="p"·data-group-id=" | 157 | ·······················</span><span·class="p"·data-group-id="9616420815-19">{</span><span·class="ss">discovery</span><span·class="p">,</span><span·class="w">········</span><span·class="nf">agent_discovery</span><span·class="p"·data-group-id="9616420815-20">(</span><span·class="p"·data-group-id="9616420815-20">)</spa[·...·truncated·by·diffoscope;·len:·72,·SHA:·0a2ae91d244ad13119a5267df95c703c9724612eaa03a692e45bd3d3c76ab236·...·]··</span><span·class="p">|</span><span·class="w"> |
| 158 | ·······················</span><span·class="p"·data-group-id="9616420815-21">{</span><span·class="ss">versions</span><span·class="p">,</span><span·class="w">·········</span><span·class="nf">versions</span><span·class="p"·data-group-id="9616420815-22">(</span><span·class="p"·data-group-id="9616420815-22">)</span><span·class="p"·data-group-id="9616420815-21">}</span><span·class="w">·········</span><span·class="p">|</span><span·class="w"> | ||
| 159 | ·······················</span><span·class="p"·data-group-id=" | 159 | ·······················</span><span·class="p"·data-group-id="9616420815-23">{</span><span·class="ss">gb_max_vbs</span><span·class="p">,</span><span·class="w">·······</span><span·class="nf">gb_max_vbs</span><span·class="p"·data-group-id="9616420815-24">(</span><span·class="p"·data-group-id="9616420815-24">)</span><sp[·...·truncated·by·diffoscope;·len:·38,·SHA:·82319b100531c80fe31a4f8f7062682ced1e6853916fcba686a5e3c958c4b358·...·]-23">}</span><span·class="w">·······</span><span·class="p">|</span><span·class="w"> |
| 160 | ·······················</span><span·class="p"·data-group-id="0459710638-25">{</span><span·class="ss">priority</span><span·class="p">,</span><span·class="w">·········</span><span·class="nf">priority</span><span·class="p"·data-group-id="0459710638-26">(</span><span·class="p"·data-group-id="0459710638-26">)</span><span·class="p"·data-group-id="0459710638-25">}</span><span·class="w">·········</span><span·class="p">|</span><span·class="w"> | ||
| 161 | ·······················</span><span·class="p"·data-group-id=" | 160 | ·······················</span><span·class="p"·data-group-id="9616420815-25">{</span><span·class="ss">priority</span><span·class="p">,</span><span·class="w">·········</span><span·class="nf">priority</span><span·class="p"·data-group-id="9616420815-26">(</span><span·class="p"·data-group-id="9616420815-26">)</span><span[·...·truncated·by·diffoscope;·len:·71,·SHA:·c5af0ed5977977d7f7b3a8e51aeff8cd60a257ce6616746e65a3b1cabfc53ea1·...·]···</span><span·class="p">|</span><span·class="w"> |
| 161 | ·······················</span><span·class="p"·data-group-id="9616420815-27">{</span><span·class="ss">multi_threaded</span><span·class="p">,</span><span·class="w">···</span><span·class="nf">multi_threaded</span><span·class="p"·data-group-id="9616420815-28">(</span><span·class="p"·data-group-id="9616420815-28">)</span><span·class="p"·data-group-id="9616420815-27">}</span><span·class="w">···</span><span·class="p">|</span><span·class="w"> | ||
| 162 | ·······················</span><span·class="p"·data-group-id=" | 162 | ·······················</span><span·class="p"·data-group-id="9616420815-29">{</span><span·class="ss">db_dir</span><span·class="p">,</span><span·class="w">···········</span><span·class="nf">db_dir</span><span·class="p"·data-group-id="9616420815-30">(</span><span·class="p"·data-group-id="9616420815-30">)</span><span·c[·...·truncated·by·diffoscope;·len:·34,·SHA:·cb29d85f23e50c8200c64c7e06be679678c910fe78df4bc42c9f7fd3d4bc360c·...·]-29">}</span><span·class="w">···········</span><span·class="p">|</span><span·class="w"> |
| 163 | ·······················</span><span·class="p"·data-group-id=" | 163 | ·······················</span><span·class="p"·data-group-id="9616420815-31">{</span><span·class="ss">db_init_error</span><span·class="p">,</span><span·class="w">····</span><span·class="nf">db_init_error</span><span·class="p"·data-group-id="9616420815-32">(</span><span·class="p"·data-group-id="9616420815-32">)</span>[·...·truncated·by·diffoscope;·len:·41,·SHA:·0205d9ce0bf0a2d95e0702d36f7663fc02774ff3d85f70969792043263065499·...·]-31">}</span><span·class="w">····</span><span·class="p">|</span><span·class="w"> |
| 164 | ·······················</span><span·class="p"·data-group-id=" | 164 | ·······················</span><span·class="p"·data-group-id="9616420815-33">{</span><span·class="ss">local_db</span><span·class="p">,</span><span·class="w">·········</span><span·class="nf">local_db</span><span·class="p"·data-group-id="9616420815-34">(</span><span·class="p"·data-group-id="9616420815-34">)</span><span[·...·truncated·by·diffoscope;·len:·36,·SHA:·ccb8e514e63e263f9ec54f4fcd77037c22a9ee5720eb8363d93057e066806b04·...·]-33">}</span><span·class="w">·········</span><span·class="p">|</span><span·class="w"> |
| 165 | ·······················</span><span·class="p"·data-group-id=" | 165 | ·······················</span><span·class="p"·data-group-id="9616420815-35">{</span><span·class="ss">net_if</span><span·class="p">,</span><span·class="w">···········</span><span·class="nf">agent_net_if</span><span·class="p"·data-group-id="9616420815-36">(</span><span·class="p"·data-group-id="9616420815-36">)</span><[·...·truncated·by·diffoscope;·len:·40,·SHA:·b1bf03e86a64346ebca6ec9980ec4c7fb68f833cb1669ca3d6bdfba70ca584d6·...·]-35">}</span><span·class="w">·····</span><span·class="p">|</span><span·class="w"> |
| 166 | ·······················</span><span·class="p"·data-group-id=" | 166 | ·······················</span><span·class="p"·data-group-id="9616420815-37">{</span><span·class="ss">mibs</span><span·class="p">,</span><span·class="w">·············</span><span·class="nf">mibs</span><span·class="p"·data-group-id="9616420815-38">(</span><span·class="p"·data-group-id="9616420815-38">)</span><span·cla[·...·truncated·by·diffoscope;·len:·32,·SHA:·cb6166278aa29fee5e6c2bc29a9a732494135068509503778a7bf8d9ed5a027a·...·]-37">}</span><span·class="w">·············</span><span·class="p">|</span><span·class="w"> |
| 167 | ·······················</span><span·class="p"·data-group-id=" | 167 | ·······················</span><span·class="p"·data-group-id="9616420815-39">{</span><span·class="ss">mib_storage</span><span·class="p">,</span><span·class="w">······</span><span·class="nf">mib_storage</span><span·class="p"·data-group-id="9616420815-40">(</span><span·class="p"·data-group-id="9616420815-40">)</span><s[·...·truncated·by·diffoscope;·len:·39,·SHA:·fb3a1971672b8a5ed239673fc190f30b42a9bb9bf370d45ef1baa544a5255978·...·]-39">}</span><span·class="w">······</span><span·class="p">|</span><span·class="w"> |
| 168 | ·······················</span><span·class="p"·data-group-id=" | 168 | ·······················</span><span·class="p"·data-group-id="9616420815-41">{</span><span·class="ss">mib_server</span><span·class="p">,</span><span·class="w">·······</span><span·class="nf">mib_server</span><span·class="p"·data-group-id="9616420815-42">(</span><span·class="p"·data-group-id="9616420815-42">)</span><sp[·...·truncated·by·diffoscope;·len:·38,·SHA:·82319b100531c80fe31a4f8f7062682ced1e6853916fcba686a5e3c958c4b358·...·]-41">}</span><span·class="w">·······</span><span·class="p">|</span><span·class="w"> |
| 169 | ·······················</span><span·class="p"·data-group-id=" | 169 | ·······················</span><span·class="p"·data-group-id="9616420815-43">{</span><span·class="ss">audit_trail_log</span><span·class="p">,</span><span·class="w">··</span><span·class="nf">audit_trail_log</span><span·class="p"·data-group-id="9616420815-44">(</span><span·class="p"·data-group-id="9616420815-44">)</spa[·...·truncated·by·diffoscope;·len:·43,·SHA:·5433f826753db0f7089c658b60d476f2e1671255c6a7a9a1531ed2f912f2fd44·...·]-43">}</span><span·class="w">··</span><span·class="p">|</span><span·class="w"> |
| 170 | ·······················</span><span·class="p"·data-group-id=" | 170 | ·······················</span><span·class="p"·data-group-id="9616420815-45">{</span><span·class="ss">error_report_mod</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">error_report_mod</span><span·class="p"·data-group-id="9616420815-46">(</span><span·class="p"·data-group-id="9616420815-46">)</sp[·...·truncated·by·diffoscope;·len:·44,·SHA:·a6453498b49ed9c7e9ae71390a56515fccb385c1cacbd7ec19bae0a8cb0ad552·...·]-45">}</span><span·class="w">·</span><span·class="p">|</span><span·class="w"> |
| 171 | ·······················</span><span·class="p"·data-group-id=" | 171 | ·······················</span><span·class="p"·data-group-id="9616420815-47">{</span><span·class="ss">note_store</span><span·class="p">,</span><span·class="w">·······</span><span·class="nf">note_store</span><span·class="p"·data-group-id="9616420815-48">(</span><span·class="p"·data-group-id="9616420815-48">)</span><sp[·...·truncated·by·diffoscope;·len:·38,·SHA:·82319b100531c80fe31a4f8f7062682ced1e6853916fcba686a5e3c958c4b358·...·]-47">}</span><span·class="w">·······</span><span·class="p">|</span><span·class="w"> |
| 172 | ·······················</span><span·class="p"·data-group-id=" | 172 | ·······················</span><span·class="p"·data-group-id="9616420815-49">{</span><span·class="ss">symbolic_store</span><span·class="p">,</span><span·class="w">···</span><span·class="nf">symbolic_store</span><span·class="p"·data-group-id="9616420815-50">(</span><span·class="p"·data-group-id="9616420815-50">)</span[·...·truncated·by·diffoscope;·len:·42,·SHA:·3dd20452b192697414e673271c72ff763c6baa75d651382df7f714dcc120ed01·...·]-49">}</span><span·class="w">···</span><span·class="p">|</span><span·class="w"> |
| 173 | ·······················</span><span·class="p"·data-group-id=" | 173 | ·······················</span><span·class="p"·data-group-id="9616420815-51">{</span><span·class="ss">target_cache</span><span·class="p">,</span><span·class="w">·····</span><span·class="nf">target_cache</span><span·class="p"·data-group-id="9616420815-52">(</span><span·class="p"·data-group-id="9616420815-52">)</span><[·...·truncated·by·diffoscope;·len:·40,·SHA:·b1bf03e86a64346ebca6ec9980ec4c7fb68f833cb1669ca3d6bdfba70ca584d6·...·]-51">}</span><span·class="w">·····</span><span·class="p">|</span><span·class="w"> |
| 174 | ·······················</span><span·class="p"·data-group-id="0459710638-53">{</span><span·class="ss">config</span><span·class="p">,</span><span·class="w">···········</span><span·class="nf">agent_config</span><span·class="p"·data-group-id="0459710638-54">(</span><span·class="p"·data-group-id="0459710638-54">)</span><span·class="p"·data-group-id="0459710638-53">}</span><span·class="w"> | ||
| 175 | ······ | 174 | ·······················</span><span·class="p"·data-group-id="9616420815-53">{</span><span·class="ss">config</span><span·class="p">,</span><span·class="w">···········</span><span·class="nf">agent_config</span><span·class="p"·data-group-id="9616420815-54">(</span>[·...·truncated·by·diffoscope;·len:·101,·SHA:·a639e8195c23cddf3dce591fb9c4410deb870ea139eb6d54d92db46ac0c7dd90·...·]</span><span·class="w"> |
| 175 | ······</span><span·class="nf">manager_options</span><span·class="p"·data-group-id="9616420815-55">(</span><span·class="p"·data-group-id="9616420815-55">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="9616420815-56">[</span><span·class="nf">manager_option</span><span·class="p"·data-group-id="9616420815-57">(</span><span·class="p"·data-group-id="9616420815-57">)</span><span·class="p"·data-group-id="9616420815-56">]</span><span·class="w"> | ||
| 176 | ······</span><span·class="nf">manager_option</span><span·class="p"·data-group-id=" | 176 | ······</span><span·class="nf">manager_option</span><span·class="p"·data-group-id="9616420815-58">(</span><span·class="p"·data-group-id="9616420815-58">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="9616420815-59">{</span><span·class="ss">restart_type</span><span·class="p">,[·...·truncated·by·diffoscope;·len:·228,·SHA:·0402562a7b4b2fefcf12783116526c71e01bcab24839907fc5323c28bf6a559f·...·]-59">}</span><span·class="w">····</span><span·class="p">|</span><span·class="w"> |
| 177 | ·························</span><span·class="p"·data-group-id=" | 177 | ·························</span><span·class="p"·data-group-id="9616420815-61">{</span><span·class="ss">net_if</span><span·class="p">,</span><span·class="w">···················</span><span·class="nf">manager_net_if</span><span·class="p"·data-group-id="9616420815-62">(</span><span·class="p"·data-group-id="9616420815-62"[·...·truncated·by·diffoscope;·len:·50,·SHA:·af162df2ee45ff02543270bcd05c6a2b435dd240ca006850829867b123900922·...·]-61">}</span><span·class="w">··</span><span·class="p">|</span><span·class="w"> |
| 178 | ·························</span><span·class="p"·data-group-id=" | 178 | ·························</span><span·class="p"·data-group-id="9616420815-63">{</span><span·class="ss">server</span><span·class="p">,</span><span·class="w">···················</span><span·class="nf">server</span><span·class="p"·data-group-id="9616420815-64">(</span><span·class="p"·data-group-id="9616420815-64">)</span[·...·truncated·by·diffoscope;·len:·42,·SHA:·3dd20452b192697414e673271c72ff763c6baa75d651382df7f714dcc120ed01·...·]-63">}</span><span·class="w">··········</span><span·class="p">|</span><span·class="w"> |
| 179 | ·························</span><span·class="p"·data-group-id="0459710638-65">{</span><span·class="ss">note_store</span><span·class="p">,</span><span·class="w">···············</span><span·class="nf">note_store</span><span·class="p"·data-group-id="0459710638-66">(</span><span·class="p"·data-group-id="0459710638-66">)</span><span·class="p"·data-group-id="0459710638-65">}</span><span·class="w">······</span><span·class="p">|</span><span·class="w"> | ||
| 180 | ·························</span><span·class="p"·data-group-id=" | 179 | ·························</span><span·class="p"·data-group-id="9616420815-65">{</span><span·class="ss">note_store</span><span·class="p">,</span><span·class="w">···············</span><span·class="nf">note_store</span><span·class="p"·data-group-id="9616420815-66">(</span><span·class="p"·data-group-id="9616420815-66">)</[·...·truncated·by·diffoscope;·len:·79,·SHA:·0162f9ef34278cc8b0b6456f11dfd44c7d9f4425fcb7517bce97cd085e3d37fb·...·]··</span><span·class="p">|</span><span·class="w"> |
| 180 | ·························</span><span·class="p"·data-group-id="9616420815-67">{</span><span·class="ss">config</span><span·class="p">,</span><span·class="w">···················</span><span·class="nf">manager_config</span><span·class="p"·data-group-id="9616420815-68">(</span><span·class="p"·data-group-id="9616420815-68">)</span><span·class="p"·data-group-id="9616420815-67">}</span><span·class="w">··</span><span·class="p">|</span><span·class="w"> | ||
| 181 | ·························</span><span·class="p"·data-group-id=" | 181 | ·························</span><span·class="p"·data-group-id="9616420815-69">{</span><span·class="ss">inform_request_behaviour</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">manager_irb</span><span·class="p"·data-group-id="9616420815-70">(</span><span·class="p"·data-group-id="9616420815-70">)<[·...·truncated·by·diffoscope;·len:·47,·SHA:·dad3b1806e2a7686399d837f1d7d11100bde88f8d1c27ee41c06136c8d4c825b·...·]-69">}</span><span·class="w">·····</span><span·class="p">|</span><span·class="w"> |
| 182 | ·························</span><span·class="p"·data-group-id=" | 182 | ·························</span><span·class="p"·data-group-id="9616420815-71">{</span><span·class="ss">mibs</span><span·class="p">,</span><span·class="w">·····················</span><span·class="nf">manager_mibs</span><span·class="p"·data-group-id="9616420815-72">(</span><span·class="p"·data-group-id="9616420815-72">)[·...·truncated·by·diffoscope;·len:·48,·SHA:·daab11e0392e8e049893b835d66584cba640e4587ff5cf9c4f4218cb6402ce90·...·]-71">}</span><span·class="w">····</span><span·class="p">|</span><span·class="w"> |
| 183 | ·························</span><span·class="p"·data-group-id="0459710638-73">{</span><span·class="ss">priority</span><span·class="p">,</span><span·class="w">·················</span><span·class="nf">priority</span><span·class="p"·data-group-id="0459710638-74">(</span><span·class="p"·data-group-id="0459710638-74">)</span><span·class="p"·data-group-id="0459710638-73">}</span><span·class="w">········</span><span·class="p">|</span><span·class="w"> | ||
| 184 | ·························</span><span·class="p"·data-group-id="0459710638-75">{</span><span·class="ss">audit_trail_log</span><span·class="p">,</span><span·class="w">··········</span><span·class="nf">audit_trail_log</span><span·class="p"·data-group-id="0459710638-76">(</span><span·class="p"·data-group-id="0459710638-76">)</span><span·class="p"·data-group-id="0459710638-75">}</span><span·class="w">·</span><span·class="p">|</span><span·class="w"> | ||
| 185 | ·························</span><span·class="p"·data-group-id=" | 183 | ·························</span><span·class="p"·data-group-id="9616420815-73">{</span><span·class="ss">priority</span><span·class="p">,</span><span·class="w">·················</span><span·class="nf">priority</span><span·class="p"·data-group-id="9616420815-74">(</span><span·class="p"·data-group-id="9616420815-74">)</sp[·...·truncated·by·diffoscope;·len:·47,·SHA:·4b5c3f60576700fbdfc4ad188457f87dc707c17c40a53bcf4988b6dff66fc1d9·...·]">}</span><span·class="w">········</span><span·class="p">|</span><span·class="w"> |
| 184 | ·························</span><span·class="p"·data-group-id="9616420815-75">{</span><span·class="ss">audit_trail_log</span><span·class="p">,</span><span·class="w">··········</span><span·class="nf">audit_trail_log</span><span·class="p"·data-group-id="9616420815-76">(</span><span·class="p"·data-group-id="9616420815-76">)</span><span·class="p"·data-group-id="9616420815-75">}</span><span·class="w">·</span><span·class="p">|</span><span·class="w"> | ||
| 185 | ·························</span><span·class="p"·data-group-id="9616420815-77">{</span><span·class="ss">versions</span><span·class="p">,</span><span·class="w">·················</span><span·class="nf">versions</span><span·class="p"·data-group-id="9616420815-78">(</span><span·class="p"·data-group-id="9616420815-78">)</span><span·class="p"·data-group-id="9616420815-77">}</span><span·class="w">········</span><span·class="p">|</span><span·class="w"> | ||
| 186 | ·························</span><span·class="p"·data-group-id=" | 186 | ·························</span><span·class="p"·data-group-id="9616420815-79">{</span><span·class="ss">def_user_mod</span><span·class="p">,</span><span·class="w">·············</span><span·class="nf">def_user_module</span><span·class="p"·data-group-id="9616420815-80">(</span><span·class="p"·data-group-id="9616420815-80">)</span><span·class="w">··</span><span·class="p">|</span><span·class="w"> |
| 187 | ·························</span><span·class="p"·data-group-id=" | 187 | ·························</span><span·class="p"·data-group-id="9616420815-81">{</span><span·class="ss">def_user_data</span><span·class="p">,</span><span·class="w">············</span><span·class="nf">def_user_data</span><span·class="p"·data-group-id="9616420815-82">(</span><span·class="p"·data-group-id="9616420815-82">[·...·truncated·by·diffoscope;·len:·49,·SHA:·398bb8fc0c1e040ebd0cdc580b54f2e2d77908ed641f779c4d4e15dbadaa1f6e·...·]-81">}</span></code></pre><p><a·href=""·id="agent_opts_and_types"></a></p><p>Agent·specific·config·options·and·types:</p><ul><li><p><strong><code·class="inline"·id="agent_type">agent_type()·=·master·|·sub·<optional></code></strong>·-·If·<code·class="inline">master</code>, |
| 188 | one·master·agent·is·started.·Otherwise,·no·agents·are·started.</p><p>Default·is·<code·class="inline">master</code>.</p></li><li><p><strong><code·class="inline"·id="agent_disco">agent_discovery()·=·[agent_discovery_opt()]·<optional></code></strong>·- | 188 | one·master·agent·is·started.·Otherwise,·no·agents·are·started.</p><p>Default·is·<code·class="inline">master</code>.</p></li><li><p><strong><code·class="inline"·id="agent_disco">agent_discovery()·=·[agent_discovery_opt()]·<optional></code></strong>·- |
| 189 | <code·class="inline">agent_discovery_opt()·=·{terminating,·agent_terminating_discovery_opts()}·|·{originating,·agent_originating_discovery_opts()}</code></p><p>The·<code·class="inline">terminating</code>·options·effects·discovery·initiated·by·a·manager.</p><p>The·<code·class="inline">originating</code>·options·effects·discovery·initiated·by·this·agent.</p><p>For·defaults·see·the·options·in·<code·class="inline">agent_discovery_opt()</code>.</p></li><li><p><strong><code·class="inline"·id="agent_term_disco_opts">agent_terminating_discovery_opts()·=·[agent_terminating_discovery_opt()]·<optional></code></strong>·- | 189 | <code·class="inline">agent_discovery_opt()·=·{terminating,·agent_terminating_discovery_opts()}·|·{originating,·agent_originating_discovery_opts()}</code></p><p>The·<code·class="inline">terminating</code>·options·effects·discovery·initiated·by·a·manager.</p><p>The·<code·class="inline">originating</code>·options·effects·discovery·initiated·by·this·agent.</p><p>For·defaults·see·the·options·in·<code·class="inline">agent_discovery_opt()</code>.</p></li><li><p><strong><code·class="inline"·id="agent_term_disco_opts">agent_terminating_discovery_opts()·=·[agent_terminating_discovery_opt()]·<optional></code></strong>·- |
| 190 | <code·class="inline">agent_terminating_discovery_opt()·=·{enable,·boolean()}·|·{stage2,·discovery·|·plain}·|·{trigger_username,·string()}</code></p><p>These·are·options·effecting·discovery·<code·class="inline">terminating</code>·in·this·agent·(i.e. | 190 | <code·class="inline">agent_terminating_discovery_opt()·=·{enable,·boolean()}·|·{stage2,·discovery·|·plain}·|·{trigger_username,·string()}</code></p><p>These·are·options·effecting·discovery·<code·class="inline">terminating</code>·in·this·agent·(i.e. |
| 191 | initiated·by·a·manager).</p><p>The·default·values·for·the·<code·class="inline">terminating</code>·discovery·options·are:</p><ul><li>enable:·<code·class="inline">true</code></li><li>stage2:·<code·class="inline">discovery</code></li><li>trigger_username:·<code·class="inline">""</code></li></ul></li><li><p><strong><code·class="inline"·id="agent_orig_disco_opts">agent_originating_discovery_opts()·=·[agent_originating_discovery_opt()]·<optional></code></strong>·- | 191 | initiated·by·a·manager).</p><p>The·default·values·for·the·<code·class="inline">terminating</code>·discovery·options·are:</p><ul><li>enable:·<code·class="inline">true</code></li><li>stage2:·<code·class="inline">discovery</code></li><li>trigger_username:·<code·class="inline">""</code></li></ul></li><li><p><strong><code·class="inline"·id="agent_orig_disco_opts">agent_originating_discovery_opts()·=·[agent_originating_discovery_opt()]·<optional></code></strong>·- |
| 192 | <code·class="inline">agent_originating_discovery_opt()·=·{enable,·boolean()}</code></p><p>These·are·options·effecting·discovery·<code·class="inline">originating</code>·in·this·agent.</p><p>The·default·values·for·the·<code·class="inline">originating</code>·discovery·options·are:</p><ul><li>enable:·<code·class="inline">true</code></li></ul></li><li><p><strong><code·class="inline"·id="agent_mt">multi_threaded()·=·bool()·|·extended·<optional></code></strong>·-·If | 192 | <code·class="inline">agent_originating_discovery_opt()·=·{enable,·boolean()}</code></p><p>These·are·options·effecting·discovery·<code·class="inline">originating</code>·in·this·agent.</p><p>The·default·values·for·the·<code·class="inline">originating</code>·discovery·options·are:</p><ul><li>enable:·<code·class="inline">true</code></li></ul></li><li><p><strong><code·class="inline"·id="agent_mt">multi_threaded()·=·bool()·|·extended·<optional></code></strong>·-·If |
| 193 | <code·class="inline">true</code>·(or·<code·class="inline">extended</code>),·the·agent·is·multi-threaded,·with·one·thread·for·each | 193 | <code·class="inline">true</code>·(or·<code·class="inline">extended</code>),·the·agent·is·multi-threaded,·with·one·thread·for·each |
| 194 | get·request.</p><p>The·value·<code·class="inline">extended</code>·means·that·a·special·'process'·is·also·created·intended | 194 | get·request.</p><p>The·value·<code·class="inline">extended</code>·means·that·a·special·'process'·is·also·created·intended |
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| 421 | ······<p·class="built-using"> | 421 | ······<p·class="built-using"> |
| 422 | ········Built·using | 422 | ········Built·using |
| 423 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 423 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 424 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 424 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 425 | ······</p> | 425 | ······</p> |
| 426 | <p>Copyright·©·1996-202 | 426 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 427 | ····</footer> | 427 | ····</footer> |
| 428 | ··</div> | 428 | ··</div> |
| 429 | </main> | 429 | </main> |
| 430 | </div> | 430 | </div> |
| 431 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 431 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 432 | ··<script> | 432 | ··<script> |
| 433 | ··let·initialized·=·false; | 433 | ··let·initialized·=·false; |
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| 179 | ······<p·class="built-using"> | 179 | ······<p·class="built-using"> |
| 180 | ········Built·using | 180 | ········Built·using |
| 181 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 181 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 182 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 182 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 183 | ······</p> | 183 | ······</p> |
| 184 | <p>Copyright·©·1996-202 | 184 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 185 | ····</footer> | 185 | ····</footer> |
| 186 | ··</div> | 186 | ··</div> |
| 187 | </main> | 187 | </main> |
| 188 | </div> | 188 | </div> |
| 189 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 189 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 190 | ··<script> | 190 | ··<script> |
| 191 | ··let·initialized·=·false; | 191 | ··let·initialized·=·false; |
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| 649 | ······<p·class="built-using"> | 649 | ······<p·class="built-using"> |
| 650 | ········Built·using | 650 | ········Built·using |
| 651 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 651 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 652 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 652 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 653 | ······</p> | 653 | ······</p> |
| 654 | <p>Copyright·©·1996-202 | 654 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 655 | ····</footer> | 655 | ····</footer> |
| 656 | ··</div> | 656 | ··</div> |
| 657 | </main> | 657 | </main> |
| 658 | </div> | 658 | </div> |
| 659 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 659 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 660 | ··<script> | 660 | ··<script> |
| 661 | ··let·initialized·=·false; | 661 | ··let·initialized·=·false; |
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| 186 | ······<p·class="built-using"> | 186 | ······<p·class="built-using"> |
| 187 | ········Built·using | 187 | ········Built·using |
| 188 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 188 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 189 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 189 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 190 | ······</p> | 190 | ······</p> |
| 191 | <p>Copyright·©·1996-202 | 191 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 192 | ····</footer> | 192 | ····</footer> |
| 193 | ··</div> | 193 | ··</div> |
| 194 | </main> | 194 | </main> |
| 195 | </div> | 195 | </div> |
| 196 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 196 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 197 | ··<script> | 197 | ··<script> |
| 198 | ··let·initialized·=·false; | 198 | ··let·initialized·=·false; |
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| 198 | ······<p·class="built-using"> | 198 | ······<p·class="built-using"> |
| 199 | ········Built·using | 199 | ········Built·using |
| 200 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 200 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 201 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 201 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 202 | ······</p> | 202 | ······</p> |
| 203 | <p>Copyright·©·1996-202 | 203 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 204 | ····</footer> | 204 | ····</footer> |
| 205 | ··</div> | 205 | ··</div> |
| 206 | </main> | 206 | </main> |
| 207 | </div> | 207 | </div> |
| 208 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 208 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 209 | ··<script> | 209 | ··<script> |
| 210 | ··let·initialized·=·false; | 210 | ··let·initialized·=·false; |
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| 595 | ······<p·class="built-using"> | 595 | ······<p·class="built-using"> |
| 596 | ········Built·using | 596 | ········Built·using |
| 597 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 597 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 598 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 598 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 599 | ······</p> | 599 | ······</p> |
| 600 | <p>Copyright·©·1996-202 | 600 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 601 | ····</footer> | 601 | ····</footer> |
| 602 | ··</div> | 602 | ··</div> |
| 603 | </main> | 603 | </main> |
| 604 | </div> | 604 | </div> |
| 605 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 605 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 606 | ··<script> | 606 | ··<script> |
| 607 | ··let·initialized·=·false; | 607 | ··let·initialized·=·false; |
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| 141 | <a·href="snmp_agent_config_files.html">Definition·of·Agent·Configuration·Files</a>·for·more | 141 | <a·href="snmp_agent_config_files.html">Definition·of·Agent·Configuration·Files</a>·for·more |
| 142 | information).</li><li>the·<em>database·directory</em>·stores·the·internal·database·files.</li></ul><p>The·following·directory·must·exist·in·the·system·to·run·the·manager:</p><ul><li>the·<em>configuration·directory</em>·stores·all·configuration·files·used·by·the | 142 | information).</li><li>the·<em>database·directory</em>·stores·the·internal·database·files.</li></ul><p>The·following·directory·must·exist·in·the·system·to·run·the·manager:</p><ul><li>the·<em>configuration·directory</em>·stores·all·configuration·files·used·by·the |
| 143 | manager·(refer·to·the·chapter | 143 | manager·(refer·to·the·chapter |
| 144 | <a·href="snmp_manager_config_files.html">Definition·of·Manager·Configuration·Files</a>·for | 144 | <a·href="snmp_manager_config_files.html">Definition·of·Manager·Configuration·Files</a>·for |
| 145 | more·information).</li><li>the·<em>database·directory</em>·stores·the·internal·database·files.</li></ul><p>The·agent·and·manager·uses·(application)·configuration·parameters·to·find·out | 145 | more·information).</li><li>the·<em>database·directory</em>·stores·the·internal·database·files.</li></ul><p>The·agent·and·manager·uses·(application)·configuration·parameters·to·find·out |
| 146 | where·these·directories·are·located.·The·parameters·should·be·defined·in·an | 146 | where·these·directories·are·located.·The·parameters·should·be·defined·in·an |
| 147 | Erlang·system·configuration·file.·The·following·configuration·parameters·are | 147 | Erlang·system·configuration·file.·The·following·configuration·parameters·are |
| 148 | defined·for·the·SNMP·application:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">······</span><span·class="nf">agent_options</span><span·class="p"·data-group-id=" | 148 | defined·for·the·SNMP·application:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">······</span><span·class="nf">agent_options</span><span·class="p"·data-group-id="1256649412-1">(</span><span·class="p"·data-group-id="1256649412-1">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="1256649412-2">[</span><span·class="nf">agent_option</span><span·class="p"·data[·...·truncated·by·diffoscope;·len:·127,·SHA:·0127a3d4703229fb5323d8faaf476ca5bcae9394fc2ff77a812dbe9dcbe8b330·...·]-2">]</span><span·class="w"> |
| 149 | ······</span><span·class="nf">agent_option</span><span·class="p"·data-group-id=" | 149 | ······</span><span·class="nf">agent_option</span><span·class="p"·data-group-id="1256649412-4">(</span><span·class="p"·data-group-id="1256649412-4">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="1256649412-5">{</span><span·class="ss">restart_type</span><span·class="p">,</s[·...·truncated·by·diffoscope;·len:·215,·SHA:·d1087e1af1959cda0e0dcfe05d79bcf8333915a76faa28427880488d0c372129·...·]-5">}</span><span·class="w">·····</span><span·class="p">|</span><span·class="w"> |
| 150 | ·······················</span><span·class="p"·data-group-id=" | 150 | ·······················</span><span·class="p"·data-group-id="1256649412-7">{</span><span·class="ss">agent_type</span><span·class="p">,</span><span·class="w">·······</span><span·class="nf">agent_type</span><span·class="p"·data-group-id="1256649412-8">(</span><span·class="p"·data-group-id="1256649412-8">)</span><span·[·...·truncated·by·diffoscope;·len:·35,·SHA:·b9a6f84ec09e979e16c2f777321f71cb3ea415394af82751b877065008c6f46d·...·]-7">}</span><span·class="w">·······</span><span·class="p">|</span><span·class="w"> |
| 151 | ·······················</span><span·class="p"·data-group-id=" | 151 | ·······················</span><span·class="p"·data-group-id="1256649412-9">{</span><span·class="ss">agent_verbosity</span><span·class="p">,</span><span·class="w">··</span><span·class="nf">verbosity</span><span·class="p"·data-group-id="1256649412-10">(</span><span·class="p"·data-group-id="1256649412-10">)</span><span[·...·truncated·by·diffoscope;·len:·36,·SHA:·41e76b624bb0973eb56fb3facf88c2431f7eea37cc6b495ec0263b7381638ce9·...·]-9">}</span><span·class="w">········</span><span·class="p">|</span><span·class="w"> |
| 152 | ·······················</span><span·class="p"·data-group-id=" | 152 | ·······················</span><span·class="p"·data-group-id="1256649412-11">{</span><span·class="ss">versions</span><span·class="p">,</span><span·class="w">·········</span><span·class="nf">versions</span><span·class="p"·data-group-id="1256649412-12">(</span><span·class="p"·data-group-id="1256649412-12">)</span><span[·...·truncated·by·diffoscope;·len:·36,·SHA:·41e76b624bb0973eb56fb3facf88c2431f7eea37cc6b495ec0263b7381638ce9·...·]-11">}</span><span·class="w">·········</span><span·class="p">|</span><span·class="w"> |
| 153 | ·······················</span><span·class="p"·data-group-id=" | 153 | ·······················</span><span·class="p"·data-group-id="1256649412-13">{</span><span·class="ss">discovery</span><span·class="p">,</span><span·class="w">········</span><span·class="nf">agent_discovery</span><span·class="p"·data-group-id="1256649412-14">(</span><span·class="p"·data-group-id="1256649412-14">)</spa[·...·truncated·by·diffoscope;·len:·43,·SHA:·12f47f6fbd6d1f388ffc560d8b9920a6dacea2f23d6f6266c4f7fbde76582538·...·]-13">}</span><span·class="w">··</span><span·class="p">|</span><span·class="w"> |
| 154 | ·······················</span><span·class="p"·data-group-id=" | 154 | ·······················</span><span·class="p"·data-group-id="1256649412-15">{</span><span·class="ss">gb_max_vbs</span><span·class="p">,</span><span·class="w">·······</span><span·class="nf">gb_max_vbs</span><span·class="p"·data-group-id="1256649412-16">(</span><span·class="p"·data-group-id="1256649412-16">)</span><sp[·...·truncated·by·diffoscope;·len:·38,·SHA:·5dc5cb4abffcbdbe2dde09e897ecffe15f04e822934b47b4d64603683397419a·...·]-15">}</span><span·class="w">·······</span><span·class="p">|</span><span·class="w"> |
| 155 | ·······················</span><span·class="p"·data-group-id=" | 155 | ·······················</span><span·class="p"·data-group-id="1256649412-17">{</span><span·class="ss">priority</span><span·class="p">,</span><span·class="w">·········</span><span·class="nf">priority</span><span·class="p"·data-group-id="1256649412-18">(</span><span·class="p"·data-group-id="1256649412-18">)</span><span[·...·truncated·by·diffoscope;·len:·36,·SHA:·41e76b624bb0973eb56fb3facf88c2431f7eea37cc6b495ec0263b7381638ce9·...·]-17">}</span><span·class="w">·········</span><span·class="p">|</span><span·class="w"> |
| 156 | ·······················</span><span·class="p"·data-group-id=" | 156 | ·······················</span><span·class="p"·data-group-id="1256649412-19">{</span><span·class="ss">multi_threaded</span><span·class="p">,</span><span·class="w">···</span><span·class="nf">multi_threaded</span><span·class="p"·data-group-id="1256649412-20">(</span><span·class="p"·data-group-id="1256649412-20">)</span[·...·truncated·by·diffoscope;·len:·42,·SHA:·0c724df177a3e25a87131214bd863d736591cf28e2e9f217e2ad57ccd405c114·...·]-19">}</span><span·class="w">···</span><span·class="p">|</span><span·class="w"> |
| 157 | ·······················</span><span·class="p"·data-group-id=" | 157 | ·······················</span><span·class="p"·data-group-id="1256649412-21">{</span><span·class="ss">db_dir</span><span·class="p">,</span><span·class="w">···········</span><span·class="nf">db_dir</span><span·class="p"·data-group-id="1256649412-22">(</span><span·class="p"·data-group-id="1256649412-22">)</span><span·c[·...·truncated·by·diffoscope;·len:·34,·SHA:·ed82bb2b9707d4a0e260b27ea880d0c64d8179a9297e4fe9c7cc1e2498fcb422·...·]-21">}</span><span·class="w">···········</span><span·class="p">|</span><span·class="w"> |
| 158 | ·······················</span><span·class="p"·data-group-id=" | 158 | ·······················</span><span·class="p"·data-group-id="1256649412-23">{</span><span·class="ss">db_init_error</span><span·class="p">,</span><span·class="w">····</span><span·class="nf">db_init_error</span><span·class="p"·data-group-id="1256649412-24">(</span><span·class="p"·data-group-id="1256649412-24">)</span>[·...·truncated·by·diffoscope;·len:·41,·SHA:·9abcdabb5aa5603940cfe497b777ca9d6b80b2ed1110f59c12130397a6d734ed·...·]-23">}</span><span·class="w">····</span><span·class="p">|</span><span·class="w"> |
| 159 | ·······················</span><span·class="p"·data-group-id=" | 159 | ·······················</span><span·class="p"·data-group-id="1256649412-25">{</span><span·class="ss">local_db</span><span·class="p">,</span><span·class="w">·········</span><span·class="nf">local_db</span><span·class="p"·data-group-id="1256649412-26">(</span><span·class="p"·data-group-id="1256649412-26">)</span><span[·...·truncated·by·diffoscope;·len:·36,·SHA:·41e76b624bb0973eb56fb3facf88c2431f7eea37cc6b495ec0263b7381638ce9·...·]-25">}</span><span·class="w">·········</span><span·class="p">|</span><span·class="w"> |
| 160 | ·······················</span><span·class="p"·data-group-id=" | 160 | ·······················</span><span·class="p"·data-group-id="1256649412-27">{</span><span·class="ss">net_if</span><span·class="p">,</span><span·class="w">···········</span><span·class="nf">agent_net_if</span><span·class="p"·data-group-id="1256649412-28">(</span><span·class="p"·data-group-id="1256649412-28">)</span><[·...·truncated·by·diffoscope;·len:·40,·SHA:·381e7b5c0b5660ace80b3171d2f174d1ac02b935bf3777178941886d40ba28b8·...·]-27">}</span><span·class="w">·····</span><span·class="p">|</span><span·class="w"> |
| 161 | ·······················</span><span·class="p"·data-group-id=" | 161 | ·······················</span><span·class="p"·data-group-id="1256649412-29">{</span><span·class="ss">mibs</span><span·class="p">,</span><span·class="w">·············</span><span·class="nf">mibs</span><span·class="p"·data-group-id="1256649412-30">(</span><span·class="p"·data-group-id="1256649412-30">)</span><span·cla[·...·truncated·by·diffoscope;·len:·32,·SHA:·37311216931ebb7b12c12e2d44cfaf5d1df0633de16fb100bc4b6286c1050deb·...·]-29">}</span><span·class="w">·············</span><span·class="p">|</span><span·class="w"> |
| 162 | ·······················</span><span·class="p"·data-group-id=" | 162 | ·······················</span><span·class="p"·data-group-id="1256649412-31">{</span><span·class="ss">mib_storage</span><span·class="p">,</span><span·class="w">······</span><span·class="nf">mib_storage</span><span·class="p"·data-group-id="1256649412-32">(</span><span·class="p"·data-group-id="1256649412-32">)</span><s[·...·truncated·by·diffoscope;·len:·39,·SHA:·196dec7740b748c4f7b357b8a8d1da00c8fa0500609f22815a052fe33766bd05·...·]-31">}</span><span·class="w">······</span><span·class="p">|</span><span·class="w"> |
| 163 | ·······················</span><span·class="p"·data-group-id=" | 163 | ·······················</span><span·class="p"·data-group-id="1256649412-33">{</span><span·class="ss">mib_server</span><span·class="p">,</span><span·class="w">·······</span><span·class="nf">mib_server</span><span·class="p"·data-group-id="1256649412-34">(</span><span·class="p"·data-group-id="1256649412-34">)</span><sp[·...·truncated·by·diffoscope;·len:·38,·SHA:·5dc5cb4abffcbdbe2dde09e897ecffe15f04e822934b47b4d64603683397419a·...·]-33">}</span><span·class="w">·······</span><span·class="p">|</span><span·class="w"> |
| 164 | ·······················</span><span·class="p"·data-group-id=" | 164 | ·······················</span><span·class="p"·data-group-id="1256649412-35">{</span><span·class="ss">audit_trail_log</span><span·class="p">,</span><span·class="w">··</span><span·class="nf">audit_trail_log</span><span·class="p"·data-group-id="1256649412-36">(</span><span·class="p"·data-group-id="1256649412-36">)</spa[·...·truncated·by·diffoscope;·len:·43,·SHA:·12f47f6fbd6d1f388ffc560d8b9920a6dacea2f23d6f6266c4f7fbde76582538·...·]-35">}</span><span·class="w">··</span><span·class="p">|</span><span·class="w"> |
| 165 | ·······················</span><span·class="p"·data-group-id=" | 165 | ·······················</span><span·class="p"·data-group-id="1256649412-37">{</span><span·class="ss">error_report_mod</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">error_report_mod</span><span·class="p"·data-group-id="1256649412-38">(</span><span·class="p"·data-group-id="1256649412-38">)</sp[·...·truncated·by·diffoscope;·len:·44,·SHA:·cb55937522f57b988465fa7790ad7ac28984b5fdbd560a376b2834f0982dc045·...·]-37">}</span><span·class="w">·</span><span·class="p">|</span><span·class="w"> |
| 166 | ·······················</span><span·class="p"·data-group-id=" | 166 | ·······················</span><span·class="p"·data-group-id="1256649412-39">{</span><span·class="ss">note_store</span><span·class="p">,</span><span·class="w">·······</span><span·class="nf">note_store</span><span·class="p"·data-group-id="1256649412-40">(</span><span·class="p"·data-group-id="1256649412-40">)</span><sp[·...·truncated·by·diffoscope;·len:·38,·SHA:·5dc5cb4abffcbdbe2dde09e897ecffe15f04e822934b47b4d64603683397419a·...·]-39">}</span><span·class="w">·······</span><span·class="p">|</span><span·class="w"> |
| 167 | ·······················</span><span·class="p"·data-group-id=" | 167 | ·······················</span><span·class="p"·data-group-id="1256649412-41">{</span><span·class="ss">symbolic_store</span><span·class="p">,</span><span·class="w">···</span><span·class="nf">symbolic_store</span><span·class="p"·data-group-id="1256649412-42">(</span><span·class="p"·data-group-id="1256649412-42">)</span[·...·truncated·by·diffoscope;·len:·42,·SHA:·0c724df177a3e25a87131214bd863d736591cf28e2e9f217e2ad57ccd405c114·...·]-41">}</span><span·class="w">···</span><span·class="p">|</span><span·class="w"> |
| 168 | ·······················</span><span·class="p"·data-group-id=" | 168 | ·······················</span><span·class="p"·data-group-id="1256649412-43">{</span><span·class="ss">target_cache</span><span·class="p">,</span><span·class="w">·····</span><span·class="nf">target_cache</span><span·class="p"·data-group-id="1256649412-44">(</span><span·class="p"·data-group-id="1256649412-44">)</span><[·...·truncated·by·diffoscope;·len:·40,·SHA:·381e7b5c0b5660ace80b3171d2f174d1ac02b935bf3777178941886d40ba28b8·...·]-43">}</span><span·class="w">·····</span><span·class="p">|</span><span·class="w"> |
| 169 | ·······················</span><span·class="p"·data-group-id=" | 169 | ·······················</span><span·class="p"·data-group-id="1256649412-45">{</span><span·class="ss">config</span><span·class="p">,</span><span·class="w">···········</span><span·class="nf">agent_config</span><span·class="p"·data-group-id="1256649412-46">(</span><span·class="p"·data-group-id="1256649412-46">)</span><[·...·truncated·by·diffoscope;·len:·40,·SHA:·381e7b5c0b5660ace80b3171d2f174d1ac02b935bf3777178941886d40ba28b8·...·]-45">}</span><span·class="w"> |
| 170 | ······</span><span·class="nf">manager_options</span><span·class="p"·data-group-id=" | 170 | ······</span><span·class="nf">manager_options</span><span·class="p"·data-group-id="1256649412-47">(</span><span·class="p"·data-group-id="1256649412-47">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="1256649412-48">[</span><span·class="nf">manager_option</span><span·class="p"[·...·truncated·by·diffoscope;·len:·134,·SHA:·6f45fde0ac7bd001d0acfbd6d59c5271672aef572ae3de729d99329148e60913·...·]-48">]</span><span·class="w"> |
| 171 | ······</span><span·class="nf">manager_option</span><span·class="p"·data-group-id=" | 171 | ······</span><span·class="nf">manager_option</span><span·class="p"·data-group-id="1256649412-50">(</span><span·class="p"·data-group-id="1256649412-50">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="1256649412-51">{</span><span·class="ss">restart_type</span><span·class="p">,[·...·truncated·by·diffoscope;·len:·228,·SHA:·ae10cd32f4c87c566c216cbba250b0a3483f4cae2d3cbed92e48709090e17ced·...·]-51">}</span><span·class="w">····</span><span·class="p">|</span><span·class="w"> |
| 172 | ·························</span><span·class="p"·data-group-id=" | 172 | ·························</span><span·class="p"·data-group-id="1256649412-53">{</span><span·class="ss">net_if</span><span·class="p">,</span><span·class="w">···················</span><span·class="nf">manager_net_if</span><span·class="p"·data-group-id="1256649412-54">(</span><span·class="p"·data-group-id="1256649412-54"[·...·truncated·by·diffoscope;·len:·50,·SHA:·54aeed54c6734abdebc9daa0586087a57f2be0ab742ed4b0f4d745630cb83b71·...·]-53">}</span><span·class="w">··</span><span·class="p">|</span><span·class="w"> |
| 173 | ·························</span><span·class="p"·data-group-id=" | 173 | ·························</span><span·class="p"·data-group-id="1256649412-55">{</span><span·class="ss">server</span><span·class="p">,</span><span·class="w">···················</span><span·class="nf">server</span><span·class="p"·data-group-id="1256649412-56">(</span><span·class="p"·data-group-id="1256649412-56">)</span[·...·truncated·by·diffoscope;·len:·42,·SHA:·0c724df177a3e25a87131214bd863d736591cf28e2e9f217e2ad57ccd405c114·...·]-55">}</span><span·class="w">··········</span><span·class="p">|</span><span·class="w"> |
| 174 | ·························</span><span·class="p"·data-group-id=" | 174 | ·························</span><span·class="p"·data-group-id="1256649412-57">{</span><span·class="ss">note_store</span><span·class="p">,</span><span·class="w">···············</span><span·class="nf">note_store</span><span·class="p"·data-group-id="1256649412-58">(</span><span·class="p"·data-group-id="1256649412-58">)</[·...·truncated·by·diffoscope;·len:·46,·SHA:·5bbd139c580a9a111ecbb748feff23f6c292fd5645cdd41a425ea6ab421c0c88·...·]-57">}</span><span·class="w">······</span><span·class="p">|</span><span·class="w"> |
| 175 | ·························</span><span·class="p"·data-group-id=" | 175 | ·························</span><span·class="p"·data-group-id="1256649412-59">{</span><span·class="ss">config</span><span·class="p">,</span><span·class="w">···················</span><span·class="nf">manager_config</span><span·class="p"·data-group-id="1256649412-60">(</span><span·class="p"·data-group-id="1256649412-60"[·...·truncated·by·diffoscope;·len:·50,·SHA:·54aeed54c6734abdebc9daa0586087a57f2be0ab742ed4b0f4d745630cb83b71·...·]-59">}</span><span·class="w">··</span><span·class="p">|</span><span·class="w"> |
| 176 | ·························</span><span·class="p"·data-group-id=" | 176 | ·························</span><span·class="p"·data-group-id="1256649412-61">{</span><span·class="ss">inform_request_behaviour</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">manager_irb</span><span·class="p"·data-group-id="1256649412-62">(</span><span·class="p"·data-group-id="1256649412-62">)<[·...·truncated·by·diffoscope;·len:·47,·SHA:·e57a25503431ef7004d2b28bc730b3c64dee4881b7c9e98e06b19232073eff32·...·]-61">}</span><span·class="w">·····</span><span·class="p">|</span><span·class="w"> |
| 177 | ·························</span><span·class="p"·data-group-id=" | 177 | ·························</span><span·class="p"·data-group-id="1256649412-63">{</span><span·class="ss">mibs</span><span·class="p">,</span><span·class="w">·····················</span><span·class="nf">manager_mibs</span><span·class="p"·data-group-id="1256649412-64">(</span><span·class="p"·data-group-id="1256649412-64">)[·...·truncated·by·diffoscope;·len:·48,·SHA:·3f2ebbcaee5e502f96b6432ce6676eb5291fad1fdd8d1eeddaec1dd0e8994cbd·...·]-63">}</span><span·class="w">····</span><span·class="p">|</span><span·class="w"> |
| 178 | ·························</span><span·class="p"·data-group-id=" | 178 | ·························</span><span·class="p"·data-group-id="1256649412-65">{</span><span·class="ss">priority</span><span·class="p">,</span><span·class="w">·················</span><span·class="nf">priority</span><span·class="p"·data-group-id="1256649412-66">(</span><span·class="p"·data-group-id="1256649412-66">)</sp[·...·truncated·by·diffoscope;·len:·44,·SHA:·cb55937522f57b988465fa7790ad7ac28984b5fdbd560a376b2834f0982dc045·...·]-65">}</span><span·class="w">········</span><span·class="p">|</span><span·class="w"> |
| 179 | ·························</span><span·class="p"·data-group-id=" | 179 | ·························</span><span·class="p"·data-group-id="1256649412-67">{</span><span·class="ss">audit_trail_log</span><span·class="p">,</span><span·class="w">··········</span><span·class="nf">audit_trail_log</span><span·class="p"·data-group-id="1256649412-68">(</span><span·class="p"·data-group-id="1256649412-68[·...·truncated·by·diffoscope;·len:·51,·SHA:·649c3ee2f4bfa481199a630937ea523f68b5b5b76221d9168dd7da15fd96688e·...·]-67">}</span><span·class="w">·</span><span·class="p">|</span><span·class="w"> |
| 180 | ·························</span><span·class="p"·data-group-id=" | 180 | ·························</span><span·class="p"·data-group-id="1256649412-69">{</span><span·class="ss">versions</span><span·class="p">,</span><span·class="w">·················</span><span·class="nf">versions</span><span·class="p"·data-group-id="1256649412-70">(</span><span·class="p"·data-group-id="1256649412-70">)</sp[·...·truncated·by·diffoscope;·len:·44,·SHA:·cb55937522f57b988465fa7790ad7ac28984b5fdbd560a376b2834f0982dc045·...·]-69">}</span><span·class="w">········</span><span·class="p">|</span><span·class="w"> |
| 181 | ·························</span><span·class="p"·data-group-id=" | 181 | ·························</span><span·class="p"·data-group-id="1256649412-71">{</span><span·class="ss">def_user_mod</span><span·class="p">,</span><span·class="w">·············</span><span·class="nf">def_user_module</span><span·class="p"·data-group-id="1256649412-72">(</span><span·class="p"·data-group-id="1256649412-72">)</span><span·class="w">··</span><span·class="p">|</span><span·class="w"> |
| 182 | ·························</span><span·class="p"·data-group-id=" | 182 | ·························</span><span·class="p"·data-group-id="1256649412-73">{</span><span·class="ss">def_user_data</span><span·class="p">,</span><span·class="w">············</span><span·class="nf">def_user_data</span><span·class="p"·data-group-id="1256649412-74">(</span><span·class="p"·data-group-id="1256649412-74">[·...·truncated·by·diffoscope;·len:·49,·SHA:·94dfb0201134731c587929998203af79514dfcf36e90889ebbbd64a819c958c6·...·]-73">}</span></code></pre><p><a·href=""·id="agent_opts_and_types"></a></p><p>Agent·specific·config·options·and·types:</p><ul><li><p><strong><code·class="inline"·id="agent_type">agent_type()·=·master·|·sub·<optional></code></strong>·-·If·<code·class="inline">master</code>, |
| 183 | one·master·agent·is·started.·Otherwise,·no·agents·are·started.</p><p>Default·is·<code·class="inline">master</code>.</p></li><li><p><strong><code·class="inline"·id="agent_disco">agent_discovery()·=·[agent_discovery_opt()]·<optional></code></strong>·- | 183 | one·master·agent·is·started.·Otherwise,·no·agents·are·started.</p><p>Default·is·<code·class="inline">master</code>.</p></li><li><p><strong><code·class="inline"·id="agent_disco">agent_discovery()·=·[agent_discovery_opt()]·<optional></code></strong>·- |
| 184 | <code·class="inline">agent_discovery_opt()·=·{terminating,·agent_terminating_discovery_opts()}·|·{originating,·agent_originating_discovery_opts()}</code></p><p>The·<code·class="inline">terminating</code>·options·effects·discovery·initiated·by·a·manager.</p><p>The·<code·class="inline">originating</code>·options·effects·discovery·initiated·by·this·agent.</p><p>For·defaults·see·the·options·in·<code·class="inline">agent_discovery_opt()</code>.</p></li><li><p><strong><code·class="inline"·id="agent_term_disco_opts">agent_terminating_discovery_opts()·=·[agent_terminating_discovery_opt()]·<optional></code></strong>·- | 184 | <code·class="inline">agent_discovery_opt()·=·{terminating,·agent_terminating_discovery_opts()}·|·{originating,·agent_originating_discovery_opts()}</code></p><p>The·<code·class="inline">terminating</code>·options·effects·discovery·initiated·by·a·manager.</p><p>The·<code·class="inline">originating</code>·options·effects·discovery·initiated·by·this·agent.</p><p>For·defaults·see·the·options·in·<code·class="inline">agent_discovery_opt()</code>.</p></li><li><p><strong><code·class="inline"·id="agent_term_disco_opts">agent_terminating_discovery_opts()·=·[agent_terminating_discovery_opt()]·<optional></code></strong>·- |
| 185 | <code·class="inline">agent_terminating_discovery_opt()·=·{enable,·boolean()}·|·{stage2,·discovery·|·plain}·|·{trigger_username,·string()}</code></p><p>These·are·options·effecting·discovery·<code·class="inline">terminating</code>·in·this·agent·(i.e. | 185 | <code·class="inline">agent_terminating_discovery_opt()·=·{enable,·boolean()}·|·{stage2,·discovery·|·plain}·|·{trigger_username,·string()}</code></p><p>These·are·options·effecting·discovery·<code·class="inline">terminating</code>·in·this·agent·(i.e. |
| 186 | initiated·by·a·manager).</p><p>The·default·values·for·the·<code·class="inline">terminating</code>·discovery·options·are:</p><ul><li>enable:·<code·class="inline">true</code></li><li>stage2:·<code·class="inline">discovery</code></li><li>trigger_username:·<code·class="inline">""</code></li></ul></li><li><p><strong><code·class="inline"·id="agent_orig_disco_opts">agent_originating_discovery_opts()·=·[agent_originating_discovery_opt()]·<optional></code></strong>·- | 186 | initiated·by·a·manager).</p><p>The·default·values·for·the·<code·class="inline">terminating</code>·discovery·options·are:</p><ul><li>enable:·<code·class="inline">true</code></li><li>stage2:·<code·class="inline">discovery</code></li><li>trigger_username:·<code·class="inline">""</code></li></ul></li><li><p><strong><code·class="inline"·id="agent_orig_disco_opts">agent_originating_discovery_opts()·=·[agent_originating_discovery_opt()]·<optional></code></strong>·- |
| 187 | <code·class="inline">agent_originating_discovery_opt()·=·{enable,·boolean()}</code></p><p>These·are·options·effecting·discovery·<code·class="inline">originating</code>·in·this·agent.</p><p>The·default·values·for·the·<code·class="inline">originating</code>·discovery·options·are:</p><ul><li>enable:·<code·class="inline">true</code></li></ul></li><li><p><strong><code·class="inline"·id="agent_mt">multi_threaded()·=·bool()·|·extended<optional></code></strong>·-·If·<code·class="inline">true</code> | 187 | <code·class="inline">agent_originating_discovery_opt()·=·{enable,·boolean()}</code></p><p>These·are·options·effecting·discovery·<code·class="inline">originating</code>·in·this·agent.</p><p>The·default·values·for·the·<code·class="inline">originating</code>·discovery·options·are:</p><ul><li>enable:·<code·class="inline">true</code></li></ul></li><li><p><strong><code·class="inline"·id="agent_mt">multi_threaded()·=·bool()·|·extended<optional></code></strong>·-·If·<code·class="inline">true</code> |
| 188 | (or·<code·class="inline">extended</code>),·the·agent·is·multi-threaded,·with·one·thread·for·each·get | 188 | (or·<code·class="inline">extended</code>),·the·agent·is·multi-threaded,·with·one·thread·for·each·get |
| 189 | request.</p><p>The·value·<code·class="inline">extended</code>·means·that·a·special·'process'·is·also·created·intended | 189 | request.</p><p>The·value·<code·class="inline">extended</code>·means·that·a·special·'process'·is·also·created·intended |
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| 646 | ······<p·class="built-using"> | 646 | ······<p·class="built-using"> |
| 647 | ········Built·using | 647 | ········Built·using |
| 648 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 648 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 649 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 649 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 650 | ······</p> | 650 | ······</p> |
| 651 | <p>Copyright·©·1996-202 | 651 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 652 | ····</footer> | 652 | ····</footer> |
| 653 | ··</div> | 653 | ··</div> |
| 654 | </main> | 654 | </main> |
| 655 | </div> | 655 | </div> |
| 656 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 656 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 657 | ··<script> | 657 | ··<script> |
| 658 | ··let·initialized·=·false; | 658 | ··let·initialized·=·false; |
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| 364 | ······<p·class="built-using"> | 364 | ······<p·class="built-using"> |
| 365 | ········Built·using | 365 | ········Built·using |
| 366 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 366 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 367 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 367 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 368 | ······</p> | 368 | ······</p> |
| 369 | <p>Copyright·©·1996-202 | 369 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 370 | ····</footer> | 370 | ····</footer> |
| 371 | ··</div> | 371 | ··</div> |
| 372 | </main> | 372 | </main> |
| 373 | </div> | 373 | </div> |
| 374 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 374 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 375 | ··<script> | 375 | ··<script> |
| 376 | ··let·initialized·=·false; | 376 | ··let·initialized·=·false; |
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| 594 | ······<p·class="built-using"> | 594 | ······<p·class="built-using"> |
| 595 | ········Built·using | 595 | ········Built·using |
| 596 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 596 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 597 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 597 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 598 | ······</p> | 598 | ······</p> |
| 599 | <p>Copyright·©·1996-202 | 599 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 600 | ····</footer> | 600 | ····</footer> |
| 601 | ··</div> | 601 | ··</div> |
| 602 | </main> | 602 | </main> |
| 603 | </div> | 603 | </div> |
| 604 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 604 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 605 | ··<script> | 605 | ··<script> |
| 606 | ··let·initialized·=·false; | 606 | ··let·initialized·=·false; |
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| 158 | Mnesia·table·<code·class="inline">snmp_variables</code>·which·must·be·a·table·with·two·attributes·(not·a | 158 | Mnesia·table·<code·class="inline">snmp_variables</code>·which·must·be·a·table·with·two·attributes·(not·a |
| 159 | Mnesia·SNMP·table).·The·SNMP·tables·are·stored·in·Mnesia·tables·with·the·same | 159 | Mnesia·SNMP·table).·The·SNMP·tables·are·stored·in·Mnesia·tables·with·the·same |
| 160 | names·as·the·SNMP·tables.·All·functions·assume·that·a·Mnesia·table·exists·with | 160 | names·as·the·SNMP·tables.·All·functions·assume·that·a·Mnesia·table·exists·with |
| 161 | the·correct·name·and·attributes.·It·is·the·programmer's·responsibility·to·ensure | 161 | the·correct·name·and·attributes.·It·is·the·programmer's·responsibility·to·ensure |
| 162 | this.·Specifically,·if·variables·are·stored·in·Mnesia,·the·table | 162 | this.·Specifically,·if·variables·are·stored·in·Mnesia,·the·table |
| 163 | <code·class="inline">snmp_variables</code>·must·be·created·by·the·programmer.·The·record·definition·for | 163 | <code·class="inline">snmp_variables</code>·must·be·created·by·the·programmer.·The·record·definition·for |
| 164 | this·table·is·defined·in·the·file·<code·class="inline">snmp/include/snmp_types.hrl</code>.</p><p>If·an·instrumentation·function·in·the·association·file·for·a·variable·<code·class="inline">myVar</code> | 164 | this·table·is·defined·in·the·file·<code·class="inline">snmp/include/snmp_types.hrl</code>.</p><p>If·an·instrumentation·function·in·the·association·file·for·a·variable·<code·class="inline">myVar</code> |
| 165 | does·not·have·a·name·when·compiling·an·MIB,·the·compiler·generates·an·entry.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="6 | 165 | does·not·have·a·name·when·compiling·an·MIB,·the·compiler·generates·an·entry.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="6641889699-1">{</span><span·class="ss">myVar</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6641889699-2">{</span><span·class="ss">snmp_generic</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">vari[·...·truncated·by·diffoscope;·len:·1107,·SHA:·7f209c670144a17231b51d7c59bbfaf59c07c15f7903da4ded35512c022db81b·...·]-4">}</span><span·class="p">}</span><span·class="p">.</span></code></pre><h2·id="module-example"·class="section-heading"> |
| 166 | ··<a·href="#module-example"·class="hover-link"> | 166 | ··<a·href="#module-example"·class="hover-link"> |
| 167 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 167 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 168 | ··</a> | 168 | ··</a> |
| 169 | ··<span·class="text">Example</span> | 169 | ··<span·class="text">Example</span> |
| 170 | </h2> | 170 | </h2> |
| 171 | <p>The·following·example·shows·an·implementation·of·a·table·which·is·stored·in | 171 | <p>The·following·example·shows·an·implementation·of·a·table·which·is·stored·in |
| 172 | Mnesia,·but·with·some·checks·performed·at·set-request·operations.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">myTable_func</span><span·class="p"·data-group-id=" | 172 | Mnesia,·but·with·some·checks·performed·at·set-request·operations.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">myTable_func</span><span·class="p"·data-group-id="3236857621-1">(</span><span·class="ss">new</span><span·class="p">,</span><span·class="w">·</span><span·class="n">NameDb</span><span·class="p"·data-group-id="3236857621-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">···</span><span·class="c1">%·pass·unchanged</span><span·class="w"> |
| 173 | ··</span><span·class="nc">snmp_generic</span><span·class="p">:</span><span·class="nf">table_func</span><span·class="p"·data-group-id=" | 173 | ··</span><span·class="nc">snmp_generic</span><span·class="p">:</span><span·class="nf">table_func</span><span·class="p"·data-group-id="3236857621-2">(</span><span·class="ss">new</span><span·class="p">,</span><span·class="w">·</span><span·class="n">NameDb</span><span·class="p"·data-group-id="3236857621-2">)</span><span·class="p">.</span><span·class="w"> |
| 174 | </span><span·class="nf">myTable_func</span><span·class="p"·data-group-id=" | 174 | </span><span·class="nf">myTable_func</span><span·class="p"·data-group-id="3236857621-3">(</span><span·class="ss">delete</span><span·class="p">,</span><span·class="w">·</span><span·class="n">NameDb</span><span·class="p"·data-group-id="3236857621-3">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">···</span><span·class="c1">%·pass·unchanged</span><span·class="w"> |
| 175 | ··</span><span·class="nc">snmp_generic</span><span·class="p">:</span><span·class="nf">table_func</span><span·class="p"·data-group-id=" | 175 | ··</span><span·class="nc">snmp_generic</span><span·class="p">:</span><span·class="nf">table_func</span><span·class="p"·data-group-id="3236857621-4">(</span><span·class="ss">delete</span><span·class="p">,</span><span·class="w">·</span><span·class="n">NameDb</span><span·class="p"·data-group-id="3236857621-4">)</span><span·class="p">.</span><span·class="w"> |
| 176 | </span><span·class="c1">%%·change·row</span><span·class="w"> | 176 | </span><span·class="c1">%%·change·row</span><span·class="w"> |
| 177 | </span><span·class="nf">myTable_func</span><span·class="p"·data-group-id=" | 177 | </span><span·class="nf">myTable_func</span><span·class="p"·data-group-id="3236857621-5">(</span><span·class="ss">is_set_ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">RowIndex</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Cols</span><span·class="p">,</span><span·class="w">·</span[·...·truncated·by·diffoscope;·len:·71,·SHA:·c06c9ebdfe295eb5ea39d1d022bc310447daa28af463a10c8a7fe8b33d57f06c·...·]-5">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 178 | ··</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">snmp_generic</span><span·class="p">:</span><span·class="nf">table_func</span><span·class="p"·data-group-id=" | 178 | ··</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">snmp_generic</span><span·class="p">:</span><span·class="nf">table_func</span><span·class="p"·data-group-id="3236857621-6">(</span><span·class="ss">is_set_ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">RowIndex</span><span·class="p">,</span><span·class="w"> |
| 179 | ·······························</span><span·class="n">Cols</span><span·class="p">,</span><span·class="w">·</span><span·class="n">NameDb</span><span·class="p"·data-group-id=" | 179 | ·······························</span><span·class="n">Cols</span><span·class="p">,</span><span·class="w">·</span><span·class="n">NameDb</span><span·class="p"·data-group-id="3236857621-6">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 180 | ····</span><span·class="p"·data-group-id=" | 180 | ····</span><span·class="p"·data-group-id="3236857621-7">{</span><span·class="ss">noError</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">0</span><span·class="p"·data-group-id="3236857621-7">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 181 | ······</span><span·class="nc">myApplication</span><span·class="p">:</span><span·class="nf">is_set_ok</span><span·class="p"·data-group-id=" | 181 | ······</span><span·class="nc">myApplication</span><span·class="p">:</span><span·class="nf">is_set_ok</span><span·class="p"·data-group-id="3236857621-8">(</span><span·class="n">RowIndex</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Cols</span><span·class="p"·data-group-id="3236857621-8">)</span><span·class="p">;</span><span·class="w"> |
| 182 | ····</span><span·class="n">Err</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 182 | ····</span><span·class="n">Err</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 183 | ······</span><span·class="n">Err</span><span·class="w"> | 183 | ······</span><span·class="n">Err</span><span·class="w"> |
| 184 | ··</span><span·class="k">end</span><span·class="p">;</span><span·class="w"> | 184 | ··</span><span·class="k">end</span><span·class="p">;</span><span·class="w"> |
| 185 | </span><span·class="nf">myTable_func</span><span·class="p"·data-group-id=" | 185 | </span><span·class="nf">myTable_func</span><span·class="p"·data-group-id="3236857621-9">(</span><span·class="ss">set</span><span·class="p">,</span><span·class="w">·</span><span·class="n">RowIndex</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Cols</span><span·class="p">,</span><span·class="w">·</span><span[·...·truncated·by·diffoscope;·len:·65,·SHA:·cb9a87c52344cc8b24df391b960f856039dfe2f29a95a0f5070a78ee36dca107·...·]-9">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 186 | ··</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">snmp_generic</span><span·class="p">:</span><span·class="nf">table_func</span><span·class="p"·data-group-id=" | 186 | ··</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">snmp_generic</span><span·class="p">:</span><span·class="nf">table_func</span><span·class="p"·data-group-id="3236857621-10">(</span><span·class="ss">set</span><span·class="p">,</span><span·class="w">·</span><span·class="n">RowIndex</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Cols</span><span·class="p">,</span><span·class="w"> |
| 187 | ·······························</span><span·class="n">NameDb</span><span·class="p"·data-group-id=" | 187 | ·······························</span><span·class="n">NameDb</span><span·class="p"·data-group-id="3236857621-10">)</span><span·class="p">,</span><span·class="w"> |
| 188 | ····</span><span·class="p"·data-group-id=" | 188 | ····</span><span·class="p"·data-group-id="3236857621-11">{</span><span·class="ss">noError</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">0</span><span·class="p"·data-group-id="3236857621-11">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 189 | ······</span><span·class="c1">%·Now·the·row·is·updated,·tell·the·application</span><span·class="w"> | 189 | ······</span><span·class="c1">%·Now·the·row·is·updated,·tell·the·application</span><span·class="w"> |
| 190 | ······</span><span·class="nc">myApplication</span><span·class="p">:</span><span·class="nf">update</span><span·class="p"·data-group-id=" | 190 | ······</span><span·class="nc">myApplication</span><span·class="p">:</span><span·class="nf">update</span><span·class="p"·data-group-id="3236857621-12">(</span><span·class="n">RowIndex</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Cols</span><span·class="p"·data-group-id="3236857621-12">)</span><span·class="p">;</span><span·class="w"> |
| 191 | ····</span><span·class="n">Err</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 191 | ····</span><span·class="n">Err</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 192 | ······</span><span·class="n">Err</span><span·class="w"> | 192 | ······</span><span·class="n">Err</span><span·class="w"> |
| 193 | ··</span><span·class="k">end</span><span·class="p">;</span><span·class="w"> | 193 | ··</span><span·class="k">end</span><span·class="p">;</span><span·class="w"> |
| 194 | </span><span·class="nf">myTable_func</span><span·class="p"·data-group-id=" | 194 | </span><span·class="nf">myTable_func</span><span·class="p"·data-group-id="3236857621-13">(</span><span·class="n">Op</span><span·class="p">,</span><span·class="w">·</span><span·class="n">RowIndex</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Cols</span><span·class="p">,</span><span·class="w">·</span><span·[·...·truncated·by·diffoscope;·len:·64,·SHA:·25abcb01ada0318ac7f111deb66477ff0e9c42d9ee2739104f37e20ae0dcf5ea·...·]-13">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">···</span><span·class="c1">%·pass·unchanged</span><span·class="w"> |
| 195 | ··</span><span·class="nc">snmp_generic</span><span·class="p">:</span><span·class="nf">table_func</span><span·class="p"·data-group-id=" | 195 | ··</span><span·class="nc">snmp_generic</span><span·class="p">:</span><span·class="nf">table_func</span><span·class="p"·data-group-id="3236857621-14">(</span><span·class="n">Op</span><span·class="p">,</span><span·class="w">·</span><span·class="n">RowIndex</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Cols</span><span·class="p">,</span><span·class="w">·</span><span·[·...·truncated·by·diffoscope;·len:·993,·SHA:·e55afc18071a7635481329cde57d2d4de89cb6fc1e32e729f5091421f39fa432·...·]-1">}</span><span·class="p">.</span></code></pre> |
| 196 | ····</section> | 196 | ····</section> |
| 197 | </div> | 197 | </div> |
| 198 | ··<section·id="summary"·class="details-list"> | 198 | ··<section·id="summary"·class="details-list"> |
| 199 | ····<h1·class="section-heading"> | 199 | ····<h1·class="section-heading"> |
| 200 | ······<a·class="hover-link"·href="#summary"> | 200 | ······<a·class="hover-link"·href="#summary"> |
| Offset 929, 15 lines modified | Offset 929, 15 lines modified | ||
| 929 | ······<p·class="built-using"> | 929 | ······<p·class="built-using"> |
| 930 | ········Built·using | 930 | ········Built·using |
| 931 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 931 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 932 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 932 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 933 | ······</p> | 933 | ······</p> |
| 934 | <p>Copyright·©·1996-202 | 934 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 935 | ····</footer> | 935 | ····</footer> |
| 936 | ··</div> | 936 | ··</div> |
| 937 | </main> | 937 | </main> |
| 938 | </div> | 938 | </div> |
| 939 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 939 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 940 | ··<script> | 940 | ··<script> |
| 941 | ··let·initialized·=·false; | 941 | ··let·initialized·=·false; |
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| 189 | ······<p·class="built-using"> | 189 | ······<p·class="built-using"> |
| 190 | ········Built·using | 190 | ········Built·using |
| 191 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 191 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 192 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 192 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 193 | ······</p> | 193 | ······</p> |
| 194 | <p>Copyright·©·1996-202 | 194 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 195 | ····</footer> | 195 | ····</footer> |
| 196 | ··</div> | 196 | ··</div> |
| 197 | </main> | 197 | </main> |
| 198 | </div> | 198 | </div> |
| 199 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 199 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 200 | ··<script> | 200 | ··<script> |
| 201 | ··let·initialized·=·false; | 201 | ··let·initialized·=·false; |
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| 131 | <p>Abstract·Data·Type·for·SNMP·Indexing</p><p>The·module·<code·class="inline">snmp_index</code>·implements·an·Abstract·Data·Type·(ADT)·for·an·SNMP·index | 131 | <p>Abstract·Data·Type·for·SNMP·Indexing</p><p>The·module·<code·class="inline">snmp_index</code>·implements·an·Abstract·Data·Type·(ADT)·for·an·SNMP·index |
| 132 | structure·for·SNMP·tables.·It·is·implemented·as·an·ets·table·of·the·ordered_set | 132 | structure·for·SNMP·tables.·It·is·implemented·as·an·ets·table·of·the·ordered_set |
| 133 | data-type,·which·means·that·all·operations·are·O(log·n).·In·the·table,·the·key | 133 | data-type,·which·means·that·all·operations·are·O(log·n).·In·the·table,·the·key |
| 134 | is·an·ASN.1·OBJECT·IDENTIFIER.</p><p>This·index·is·used·to·separate·the·implementation·of·the·SNMP·ordering·from·the | 134 | is·an·ASN.1·OBJECT·IDENTIFIER.</p><p>This·index·is·used·to·separate·the·implementation·of·the·SNMP·ordering·from·the |
| 135 | actual·implementation·of·the·table.·The·SNMP·ordering,·that·is·implementation·of | 135 | actual·implementation·of·the·table.·The·SNMP·ordering,·that·is·implementation·of |
| 136 | GET·NEXT,·is·implemented·in·this·module.</p><p>For·example,·suppose·there·is·an·SNMP·table,·which·is·best·implemented·in·Erlang | 136 | GET·NEXT,·is·implemented·in·this·module.</p><p>For·example,·suppose·there·is·an·SNMP·table,·which·is·best·implemented·in·Erlang |
| 137 | as·one·process·per·SNMP·table·row.·Suppose·further·that·the·INDEX·in·the·SNMP | 137 | as·one·process·per·SNMP·table·row.·Suppose·further·that·the·INDEX·in·the·SNMP |
| 138 | table·is·an·OCTET·STRING.·The·index·structure·would·be·created·as·follows:</p><pre><code·class="text">snmp_index:new(string)</code></pre><p>For·each·new·process·we·create,·we·insert·an·item·in·an·<code·class="inline">snmp_index</code>·structure:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">new_process</span><span·class="p"·data-group-id=" | 138 | table·is·an·OCTET·STRING.·The·index·structure·would·be·created·as·follows:</p><pre><code·class="text">snmp_index:new(string)</code></pre><p>For·each·new·process·we·create,·we·insert·an·item·in·an·<code·class="inline">snmp_index</code>·structure:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">new_process</span><span·class="p"·data-group-id="1806743507-1">(</span><span·class="n">Name</span><span·class="p">,</span><span·class="w">·</span><span·class="n">SnmpIndex</span><span·class="p"·data-group-id="1806743507-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 139 | ··</span><span·class="n">Pid</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">start_process</span><span·class="p"·data-group-id=" | 139 | ··</span><span·class="n">Pid</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">start_process</span><span·class="p"·data-group-id="1806743507-2">(</span><span·class="p"·data-group-id="1806743507-2">)</span><span·class="p">,</span><span·class="w"> |
| 140 | ··</span><span·class="n">NewSnmpIndex</span><span·class="w">·</span><span·class="o">=</span><span·class="w"> | 140 | ··</span><span·class="n">NewSnmpIndex</span><span·class="w">·</span><span·class="o">=</span><span·class="w"> |
| 141 | ····</span><span·class="nc">snmp_index</span><span·class="p">:</span><span·class="nf">insert</span><span·class="p"·data-group-id=" | 141 | ····</span><span·class="nc">snmp_index</span><span·class="p">:</span><span·class="nf">insert</span><span·class="p"·data-group-id="1806743507-3">(</span><span·class="n">SnmpIndex</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Name</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Pid</span><span·class="p"·data-group-id="1806743507-3">)</span><span·class="p">,</span><span·class="w"> |
| 142 | ··</span><span·class="o"><</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="o">></span></code></pre><p>With·this·structure,·we·can·now·map·an·OBJECT·IDENTIFIER·in·e.g.·a·GET·NEXT | 142 | ··</span><span·class="o"><</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="o">></span></code></pre><p>With·this·structure,·we·can·now·map·an·OBJECT·IDENTIFIER·in·e.g.·a·GET·NEXT |
| 143 | request,·to·the·correct·process:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">get_next_pid</span><span·class="p"·data-group-id=" | 143 | request,·to·the·correct·process:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">get_next_pid</span><span·class="p"·data-group-id="1728451398-1">(</span><span·class="n">Oid</span><span·class="p">,</span><span·class="w">·</span><span·class="n">SnmpIndex</span><span·class="p"·data-group-id="1728451398-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 144 | ··</span><span·class="p"·data-group-id=" | 144 | ··</span><span·class="p"·data-group-id="1728451398-2">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1728451398-3">{</span><span·class="p">_</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Pid</span><span·cla[·...·truncated·by·diffoscope;·len:·459,·SHA:·0dce281e2c3df61bb5324c9b73ae6297ea2353d6ce27a6c17274315c19d63494·...·]-4">)</span><span·class="p">,</span><span·class="w"> |
| 145 | ··</span><span·class="n">Pid</span><span·class="p">.</span></code></pre><h2·id="module-warnings"·class="section-heading"> | 145 | ··</span><span·class="n">Pid</span><span·class="p">.</span></code></pre><h2·id="module-warnings"·class="section-heading"> |
| 146 | ··<a·href="#module-warnings"·class="hover-link"> | 146 | ··<a·href="#module-warnings"·class="hover-link"> |
| 147 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 147 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 148 | ··</a> | 148 | ··</a> |
| 149 | ··<span·class="text">Warnings</span> | 149 | ··<span·class="text">Warnings</span> |
| 150 | </h2> | 150 | </h2> |
| 151 | <section·role="note"·class="admonition·warning"><h4·class="admonition-title·warning">Warning</h4><p><a·href=""·id="1"></a>·All·API·functions·that·update·the·index·return·a·<code·class="inline">NewIndex</code>·term. | 151 | <section·role="note"·class="admonition·warning"><h4·class="admonition-title·warning">Warning</h4><p><a·href=""·id="1"></a>·All·API·functions·that·update·the·index·return·a·<code·class="inline">NewIndex</code>·term. |
| Offset 763, 15 lines modified | Offset 763, 15 lines modified | ||
| 763 | ······<p·class="built-using"> | 763 | ······<p·class="built-using"> |
| 764 | ········Built·using | 764 | ········Built·using |
| 765 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 765 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 766 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 766 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 767 | ······</p> | 767 | ······</p> |
| 768 | <p>Copyright·©·1996-202 | 768 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 769 | ····</footer> | 769 | ····</footer> |
| 770 | ··</div> | 770 | ··</div> |
| 771 | </main> | 771 | </main> |
| 772 | </div> | 772 | </div> |
| 773 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 773 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 774 | ··<script> | 774 | ··<script> |
| 775 | ··let·initialized·=·false; | 775 | ··let·initialized·=·false; |
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| 210 | accessible),·and·the·table·has·three·rows.·The·instrumentation·function·for·this | 210 | accessible),·and·the·table·has·three·rows.·The·instrumentation·function·for·this |
| 211 | table·is·called·<code·class="inline">my_table</code>.</p><p><a·href=""·id="getnext1"></a></p><p><img·src="assets/getnext1.gif"·alt="Contents·of·my_table"·title="Contents·of·my_table"/></p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>N/A·means·not·accessible.</p></section><p>The·manager·issues·the·following·<code·class="inline">getNext</code>·request:</p><pre><code·class="text">getNext{·myTable.myTableEntry.3.1.1, | 211 | table·is·called·<code·class="inline">my_table</code>.</p><p><a·href=""·id="getnext1"></a></p><p><img·src="assets/getnext1.gif"·alt="Contents·of·my_table"·title="Contents·of·my_table"/></p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>N/A·means·not·accessible.</p></section><p>The·manager·issues·the·following·<code·class="inline">getNext</code>·request:</p><pre><code·class="text">getNext{·myTable.myTableEntry.3.1.1, |
| 212 | ·········myTable.myTableEntry.5.1.1·}</code></pre><p>Since·both·operations·involve·the·1.1·index,·this·is·transformed·into·one·call | 212 | ·········myTable.myTableEntry.5.1.1·}</code></pre><p>Since·both·operations·involve·the·1.1·index,·this·is·transformed·into·one·call |
| 213 | to·<code·class="inline">my_table</code>:</p><pre><code·class="text">my_table(get_next,·[1,·1],·[3,·5])</code></pre><p>In·this·call,·<code·class="inline">[1,·1]</code>·is·the·<code·class="inline">RowIndex</code>,·where·key·1·has·value·1,·and·key·2·has | 213 | to·<code·class="inline">my_table</code>:</p><pre><code·class="text">my_table(get_next,·[1,·1],·[3,·5])</code></pre><p>In·this·call,·<code·class="inline">[1,·1]</code>·is·the·<code·class="inline">RowIndex</code>,·where·key·1·has·value·1,·and·key·2·has |
| 214 | value·1,·and·<code·class="inline">[3,·5]</code>·is·the·list·of·requested·columns.·The·function·should·now | 214 | value·1,·and·<code·class="inline">[3,·5]</code>·is·the·list·of·requested·columns.·The·function·should·now |
| 215 | return·the·lexicographically·next·elements:</p><pre><code·class="text">[{[3,·1,·2],·d},·{[5,·1,·2],·f}]</code></pre><p>This·is·illustrated·in·the·following·table:</p><p><a·href=""·id="getnext2"></a></p><p><img·src="assets/getnext2.gif"·alt="GetNext·from·[3,1,1]·and·[5,1,1]."·title="GetNext·from·[3,1,1]·and·[5,1,1]."/></p><p>The·manager·now·issues·the·following·<code·class="inline">getNext</code>·request:</p><pre><code·class="text">getNext{·myTable.myTableEntry.3.2.1, | 215 | return·the·lexicographically·next·elements:</p><pre><code·class="text">[{[3,·1,·2],·d},·{[5,·1,·2],·f}]</code></pre><p>This·is·illustrated·in·the·following·table:</p><p><a·href=""·id="getnext2"></a></p><p><img·src="assets/getnext2.gif"·alt="GetNext·from·[3,1,1]·and·[5,1,1]."·title="GetNext·from·[3,1,1]·and·[5,1,1]."/></p><p>The·manager·now·issues·the·following·<code·class="inline">getNext</code>·request:</p><pre><code·class="text">getNext{·myTable.myTableEntry.3.2.1, |
| 216 | ·········myTable.myTableEntry.5.2.1·}</code></pre><p>This·is·transformed·into·one·call·to·<code·class="inline">my_table</code>:</p><pre><code·class="text">my_table(get_next,·[2,·1],·[3,·5])</code></pre><p>The·function·should·now·return:</p><pre><code·class="text">[{[4,·1,·1],·b},·endOfTable]</code></pre><p>This·is·illustrated·in·the·following·table:</p><p><a·href=""·id="getnext3"></a></p><p><img·src="assets/getnext3.gif"·alt="GetNext·from·[3,2,1]·and·[5,2,1]."·title="GetNext·from·[3,2,1]·and·[5,2,1]."/></p><p>The·manager·now·issues·the·following·<code·class="inline">getNext</code>·request:</p><pre><code·class="text">getNext{·myTable.myTableEntry.3.1.2, | 216 | ·········myTable.myTableEntry.5.2.1·}</code></pre><p>This·is·transformed·into·one·call·to·<code·class="inline">my_table</code>:</p><pre><code·class="text">my_table(get_next,·[2,·1],·[3,·5])</code></pre><p>The·function·should·now·return:</p><pre><code·class="text">[{[4,·1,·1],·b},·endOfTable]</code></pre><p>This·is·illustrated·in·the·following·table:</p><p><a·href=""·id="getnext3"></a></p><p><img·src="assets/getnext3.gif"·alt="GetNext·from·[3,2,1]·and·[5,2,1]."·title="GetNext·from·[3,2,1]·and·[5,2,1]."/></p><p>The·manager·now·issues·the·following·<code·class="inline">getNext</code>·request:</p><pre><code·class="text">getNext{·myTable.myTableEntry.3.1.2, |
| 217 | ·········myTable.myTableEntry.4.1.2·}</code></pre><p>This·will·be·transform·into·one·call·to·<code·class="inline">my_table</code>:</p><pre><code·class="text">my_table(get_next,·[1,·2],·[3,·4])</code></pre><p>The·function·should·now·return:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="5875328740-1">[</span><span·class="p"·data-group-id="5875328740-2">{</span><span·class="p"·data-group-id="5875328740-3">[</span><span·class="mi">3</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">2</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">1</span><span·class="p"·data-group-id="5875328740-3">]</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">g</span><span·class="p"·data-group-id="5875328740-2">}</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="5875328740-4">{</span><span·class="p"·data-group-id="5875328740-5">[</span><span·class="mi">5</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">1</span><span·class="p"·data-group-id="5875328740-5">]</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">c</span><span·class="p"·data-group-id="5875328740-4">}</span><span·class="p"·data-group-id="5875328740-1">]</span></code></pre><p>This·is·illustrated·in·the·following·table:</p><p><a·href=""·id="getnext4"></a></p><p><img·src="assets/getnext4.gif"·alt="GetNext·from·[3,1,2]·and·[4,1,2]."·title="GetNext·from·[3,1,2]·and·[4,1,2]."/></p><p>The·manager·now·issues·the·following·<code·class="inline">getNext</code>·request:</p><pre><code·class="text">getNext{·myTable.myTableEntry, | ||
| 218 | ·········myTable.myTableEntry.1.3.2·}</code></pre><p>This·will·be·transform·into·two·calls·to·<code·class="inline">my_table</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">my_table</span><span·class="p"·data-group-id="4683234694-1">(</span><span·class="ss">get_next</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4683234694-2">[</span><span·class="p"·data-group-id="4683234694-2">]</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4683234694-3">[</span><span·class="mi">0</span><span·class="p"·data-group-id="4683234694-3">]</span><span·class="p"·data-group-id="4683234694-1">)</span><span·class="w">·</span><span·class="ow">and</span><span·class="w"> | ||
| 219 | 217 | ·········myTable.myTableEntry.4.1.2·}</code></pre><p>This·will·be·transform·into·one·call·to·<code·class="inline">my_table</code>:</p><pre><code·class="text">my_table(get_next,·[1,·2],·[3,·4])</code></pre><p>The·function·should·now·return:</p><pre><code·cl[·...·truncated·by·diffoscope;·len:·1463,·SHA:·0af5d3181addded1b1b19028b88094d112611e06ff6dcd10213e944839b93ba4·...·] | |
| 218 | ·········myTable.myTableEntry.1.3.2·}</code></pre><p>This·will·be·transform·into·two·calls·to·<code·class="inline">my_table</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">my_table</span><span·class="p"·data-group-id="8841451587-1">(</span><span·class="ss">get_next</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8841451587-2">[</span><span·class="p"·data-group-id="8841451587-2">]</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8841451587-3">[</span><span·class="mi">0</span><span·class="p"·data-group-id="8841451587-3">]</span><span·class="p"·data-group-id="8841451587-1">)</span><span·class="w">·</span><span·class="ow">and</span><span·class="w"> | ||
| 219 | </span><span·class="nf">my_table</span><span·class="p"·data-group-id="8841451587-4">(</span><span·class="ss">get_next</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8841451587-5">[</span><span·class="mi">3</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">2</span><span·class="p"·data-group-id="8841451587-5">]</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8841451587-6">[</span><span·class="mi">1</span><span·class="p"·data-group-id="8841451587-6">]</span><span·class="p"·data-group-id="8841451587-4">)</span></code></pre><p>The·function·should·now·return:</p><pre><code·class="text">[{[3,·1,·1],·a}]·and | ||
| 220 | [{[3,·1,·1],·a}]</code></pre><p>In·both·cases,·the·first·accessible·element·in·the·table·should·be·returned.·As | 220 | [{[3,·1,·1],·a}]</code></pre><p>In·both·cases,·the·first·accessible·element·in·the·table·should·be·returned.·As |
| 221 | the·key·columns·are·not·accessible,·this·means·that·the·third·column·is·the | 221 | the·key·columns·are·not·accessible,·this·means·that·the·third·column·is·the |
| 222 | first·row.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>Normally,·the·functions·described·above·behave·exactly·as·shown,·but·they·are | 222 | first·row.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>Normally,·the·functions·described·above·behave·exactly·as·shown,·but·they·are |
| 223 | free·to·perform·other·actions.·For·example,·a·get-request·may·have·side | 223 | free·to·perform·other·actions.·For·example,·a·get-request·may·have·side |
| 224 | effects·such·as·setting·some·other·variable,·perhaps·a·global·<code·class="inline">lastAccessed</code> | 224 | effects·such·as·setting·some·other·variable,·perhaps·a·global·<code·class="inline">lastAccessed</code> |
| 225 | variable.</p></section><h2·id="using-the-extraargument"·class="section-heading"> | 225 | variable.</p></section><h2·id="using-the-extraargument"·class="section-heading"> |
| 226 | ··<a·href="#using-the-extraargument"·class="hover-link"> | 226 | ··<a·href="#using-the-extraargument"·class="hover-link"> |
| Offset 229, 25 lines modified | Offset 229, 25 lines modified | ||
| 229 | ··<span·class="text">Using·the·ExtraArgument</span> | 229 | ··<span·class="text">Using·the·ExtraArgument</span> |
| 230 | </h2> | 230 | </h2> |
| 231 | <p>The·<code·class="inline">ListOfExtraArguments</code>·can·be·used·to·write·generic·functions.·This·list·is | 231 | <p>The·<code·class="inline">ListOfExtraArguments</code>·can·be·used·to·write·generic·functions.·This·list·is |
| 232 | appended·to·the·standard·arguments·for·each·function.·Consider·two·read-only | 232 | appended·to·the·standard·arguments·for·each·function.·Consider·two·read-only |
| 233 | variables·for·a·device,·<code·class="inline">ipAdr</code>·and·<code·class="inline">name</code>·with·object·identifiers·1.1.23.4·and | 233 | variables·for·a·device,·<code·class="inline">ipAdr</code>·and·<code·class="inline">name</code>·with·object·identifiers·1.1.23.4·and |
| 234 | 1.1.7·respectively.·To·access·these·variables,·one·could·implement·the·two | 234 | 1.1.7·respectively.·To·access·these·variables,·one·could·implement·the·two |
| 235 | Erlang·functions·<code·class="inline">ip_access</code>·and·<code·class="inline">name_access</code>,·which·will·be·in·the·MIB.·The | 235 | Erlang·functions·<code·class="inline">ip_access</code>·and·<code·class="inline">name_access</code>,·which·will·be·in·the·MIB.·The |
| 236 | functions·could·be·specified·in·a·text·file·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 236 | functions·could·be·specified·in·a·text·file·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="7635913050-1">{</span><span·class="ss">ipAdr</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="7635913050-2">{</span><span·class="ss">my_module</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">ip_acc[·...·truncated·by·diffoscope;·len:·258,·SHA:·bc873e143d18df44ff3404fc238b845f1891c9e91ced2515e55dfb7d1f9bcbe4·...·]-1">}</span><span·class="p">.</span><span·class="w"> |
| 237 | </span><span·class="c1">%·Or·using·the·oid·syntax·for·'name'</span><span·class="w"> | 237 | </span><span·class="c1">%·Or·using·the·oid·syntax·for·'name'</span><span·class="w"> |
| 238 | </span><span·class="p"·data-group-id=" | 238 | </span><span·class="p"·data-group-id="7635913050-4">{</span><span·class="p"·data-group-id="7635913050-5">[</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">7</span><span·class="p"·data-group-id="7635913050-5">]</span><span[·...·truncated·by·diffoscope;·len:·460,·SHA:·513aa4c4593446c170f1ed6d1b1b4dcd1228ca0cccfc1d6607a744b6e8a8a727·...·]-4">}</span><span·class="p">.</span></code></pre><p>The·<code·class="inline">ExtraArgument</code>·parameter·is·the·empty·list.·For·example,·when·the·agent |
| 239 | receives·a·get-request·for·the·<code·class="inline">ipAdr</code>·variable,·a·call·will·be·made·to | 239 | receives·a·get-request·for·the·<code·class="inline">ipAdr</code>·variable,·a·call·will·be·made·to |
| 240 | <code·class="inline">ip_access(get)</code>.·The·value·returned·by·this·function·is·the·answer·to·the | 240 | <code·class="inline">ip_access(get)</code>.·The·value·returned·by·this·function·is·the·answer·to·the |
| 241 | get-request.</p><p>If·<code·class="inline">ip_access</code>·and·<code·class="inline">name_access</code>·are·implemented·similarly,·we·could·write·a | 241 | get-request.</p><p>If·<code·class="inline">ip_access</code>·and·<code·class="inline">name_access</code>·are·implemented·similarly,·we·could·write·a |
| 242 | <code·class="inline">generic_access</code>·function·using·the·<code·class="inline">ListOfExtraArguments</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 242 | <code·class="inline">generic_access</code>·function·using·the·<code·class="inline">ListOfExtraArguments</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="0889024804-1">{</span><span·class="ss">ipAdr</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0889024804-2">{</span><span·class="ss">my_module</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">generi[·...·truncated·by·diffoscope;·len:·302,·SHA:·0339ae45d360ab8a678e5a6d3e93ad28614ef735457f38be1e4e19139ddef1d8·...·]-1">}</span><span·class="p">.</span><span·class="w"> |
| 243 | </span><span·class="c1">%·The·mnemonic·'name'·is·more·convenient·than·1.1.7</span><span·class="w"> | 243 | </span><span·class="c1">%·The·mnemonic·'name'·is·more·convenient·than·1.1.7</span><span·class="w"> |
| 244 | </span><span·class="p"·data-group-id="7243159316-4">{</span><span·class="ss">name</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="7243159316-5">{</span><span·class="ss">my_module</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">generic_access</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="7243159316-6">[</span><span·class="ss">'NAME'</span><span·class="p"·data-group-id="7243159316-6">]</span><span·class="p"·data-group-id="7243159316-5">}</span><span·class="p"·data-group-id="7243159316-4">}</span><span·class="p">.</span></code></pre><p>When·the·agent·receives·the·same·get-request·as·above,·a·call·will·be·made·to | ||
| 245 | <code·class="inline">generic_access(get,</code>'<code·class="inline">IPADR')</code>.</p><p>Yet·another·possibility,·closer·to·the·hardware,·could·be:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="7896723374-1">{</span><span·class="ss">ipAdr</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="7896723374-2">{</span><span·class="ss">my_module</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">generic_access</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="7896723374-3">[</span><span·class="mi">16#2543</span><span·class="p"·data-group-id="7896723374-3">]</span><span·class="p"·data-group-id="7896723374-2">}</span><span·class="p"·data-group-id="7896723374-1">}</span><span·class="p">.</span><span·class="w"> | ||
| 246 | </span><span·class="p"·data-group-id=" | 244 | </span><span·class="p"·data-group-id="0889024804-4">{</span><span·class="ss">name</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0889024804-5">{</span><span·class="ss">my_module</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">generic[·...·truncated·by·diffoscope;·len:·429,·SHA:·408912e53de156c7fd8c3ded0e0487215aa55426a03a7dadcda7d555a712099d·...·] |
| 245 | <code·class="inline">generic_access(get,</code>'<code·class="inline">IPADR')</code>.</p><p>Yet·another·possibility,·closer·to·the·hardware,·could·be:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="8282819701-1">{</span><span·class="ss">ipAdr</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8282819701-2">{</span><span·class="ss">my_module</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">generic_access</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8282819701-3">[</span><span·class="mi">16#2543</span><span·class="p"·data-group-id="8282819701-3">]</span><span·class="p"·data-group-id="8282819701-2">}</span><span·class="p"·data-group-id="8282819701-1">}</span><span·class="p">.</span><span·class="w"> | ||
| 246 | </span><span·class="p"·data-group-id="8282819701-4">{</span><span·class="ss">name</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8282819701-5">{</span><span·class="ss">my_module</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">generic_access</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8282819701-6">[</span><span·class="mi">16#A2B3</span><span·class="p"·data-group-id="8282819701-6">]</span><span·class="p"·data-group-id="8282819701-5">}</span><span·class="p"·data-group-id="8282819701-4">}</span><span·class="p">.</span></code></pre><h2·id="default-instrumentation"·class="section-heading"> | ||
| 247 | ··<a·href="#default-instrumentation"·class="hover-link"> | 247 | ··<a·href="#default-instrumentation"·class="hover-link"> |
| 248 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 248 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 249 | ··</a> | 249 | ··</a> |
| 250 | ··<span·class="text">Default·Instrumentation</span> | 250 | ··<span·class="text">Default·Instrumentation</span> |
| 251 | </h2> | 251 | </h2> |
| 252 | <p><a·href=""·id="snmp_3"></a></p><p>When·the·MIB·definition·work·is·finished,·there·are·two·major·issues·left.</p><ul><li>Implementing·the·MIB</li><li>Implementing·a·Manager·Application.</li></ul><p>Implementing·an·MIB·can·be·a·tedious·task.·Most·probably,·there·is·a·need·to | 252 | <p><a·href=""·id="snmp_3"></a></p><p>When·the·MIB·definition·work·is·finished,·there·are·two·major·issues·left.</p><ul><li>Implementing·the·MIB</li><li>Implementing·a·Manager·Application.</li></ul><p>Implementing·an·MIB·can·be·a·tedious·task.·Most·probably,·there·is·a·need·to |
| 253 | test·the·agent·before·all·tables·and·variables·are·implemented.·In·this·case, | 253 | test·the·agent·before·all·tables·and·variables·are·implemented.·In·this·case, |
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| 345 | ······<p·class="built-using"> | 345 | ······<p·class="built-using"> |
| 346 | ········Built·using | 346 | ········Built·using |
| 347 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 347 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 348 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 348 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 349 | ······</p> | 349 | ······</p> |
| 350 | <p>Copyright·©·1996-202 | 350 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 351 | ····</footer> | 351 | ····</footer> |
| 352 | ··</div> | 352 | ··</div> |
| 353 | </main> | 353 | </main> |
| 354 | </div> | 354 | </div> |
| 355 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 355 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 356 | ··<script> | 356 | ··<script> |
| 357 | ··let·initialized·=·false; | 357 | ··let·initialized·=·false; |
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| 253 | ······<p·class="built-using"> | 253 | ······<p·class="built-using"> |
| 254 | ········Built·using | 254 | ········Built·using |
| 255 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 255 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 256 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 256 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 257 | ······</p> | 257 | ······</p> |
| 258 | <p>Copyright·©·1996-202 | 258 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 259 | ····</footer> | 259 | ····</footer> |
| 260 | ··</div> | 260 | ··</div> |
| 261 | </main> | 261 | </main> |
| 262 | </div> | 262 | </div> |
| 263 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 263 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 264 | ··<script> | 264 | ··<script> |
| 265 | ··let·initialized·=·false; | 265 | ··let·initialized·=·false; |
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| 145 | and·<code·class="inline">IpPort</code>·is·an·integer.</p><p>When·<code·class="inline">Addr</code>·does·not·contain·a·port·number,·the·value·of·<code·class="inline">port</code>·is·used.</p><p>When·a·<code·class="inline">Addr</code>·is·not·specified·i.e·by·using·only·a·<code·class="inline">Domain</code>·atom,·the | 145 | and·<code·class="inline">IpPort</code>·is·an·integer.</p><p>When·<code·class="inline">Addr</code>·does·not·contain·a·port·number,·the·value·of·<code·class="inline">port</code>·is·used.</p><p>When·a·<code·class="inline">Addr</code>·is·not·specified·i.e·by·using·only·a·<code·class="inline">Domain</code>·atom,·the |
| 146 | host's·name·is·resolved·to·find·the·IP·address,·and·the·value·of·<code·class="inline">port</code>·is | 146 | host's·name·is·resolved·to·find·the·IP·address,·and·the·value·of·<code·class="inline">port</code>·is |
| 147 | used.</p></li></ul></li><li><p><code·class="inline">port</code>·-·which·defines·which·UDP·port·the·manager·uses·for·communicating | 147 | used.</p></li></ul></li><li><p><code·class="inline">port</code>·-·which·defines·which·UDP·port·the·manager·uses·for·communicating |
| 148 | with·agents.·<em>Mandatory</em>·if·<code·class="inline">transports</code>·does·not·define·a·port·number·for | 148 | with·agents.·<em>Mandatory</em>·if·<code·class="inline">transports</code>·does·not·define·a·port·number·for |
| 149 | every·transport.</p></li><li><p><code·class="inline">engine_id</code>·-·The·<code·class="inline">SnmpEngineID</code>·as·defined·in·SNMP-FRAMEWORK-MIB. | 149 | every·transport.</p></li><li><p><code·class="inline">engine_id</code>·-·The·<code·class="inline">SnmpEngineID</code>·as·defined·in·SNMP-FRAMEWORK-MIB. |
| 150 | <em>Mandatory</em>.</p></li><li><p><code·class="inline">max_message_size</code>·-·The·<code·class="inline">snmpEngineMaxMessageSize</code>·as·defined·in | 150 | <em>Mandatory</em>.</p></li><li><p><code·class="inline">max_message_size</code>·-·The·<code·class="inline">snmpEngineMaxMessageSize</code>·as·defined·in |
| 151 | SNMP-FRAMEWORK-MIB.·<em>Mandatory</em>.</p></li></ul></li><li><p><code·class="inline">Value</code>·is·the·value·for·the·variable.</p></li></ul><p>The·legacy·and·intermediate·variables·<code·class="inline">address</code>·and·<code·class="inline">domain</code>·are·still·supported | 151 | SNMP-FRAMEWORK-MIB.·<em>Mandatory</em>.</p></li></ul></li><li><p><code·class="inline">Value</code>·is·the·value·for·the·variable.</p></li></ul><p>The·legacy·and·intermediate·variables·<code·class="inline">address</code>·and·<code·class="inline">domain</code>·are·still·supported |
| 152 | so·old·configurations·will·work.</p><p>The·following·example·shows·a·<code·class="inline">manager.conf</code>·file:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="6 | 152 | so·old·configurations·will·work.</p><p>The·following·example·shows·a·<code·class="inline">manager.conf</code>·file:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="6377808586-1">{</span><span·class="ss">transports</span><span·class="p">,</span><span·class="w">·······</span><span·class="p"·data-group-id="6377808586-2">[</span><span·class="p"·data-group-id="6377808586-3">{</span><span·class="ss">transportDomainUdpIpv4</[·...·truncated·by·diffoscope;·len:·560,·SHA:·94274b10358afae69c03459bfec89ea7ef55f6986fc1098d8cfe96ce99e35c2b·...·]-3">}</span><span·class="p">,</span><span·class="w"> |
| 153 | ····················</span><span·class="p"·data-group-id="6 | 153 | ····················</span><span·class="p"·data-group-id="6377808586-6">{</span><span·class="ss">transportDomainUdpIpv6</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6377808586-7">{</span><span·class="p"·data-group-id="6377808586-8">{</span><span·class="mi">0</span><span·clas[·...·truncated·by·diffoscope;·len:·662,·SHA:·77b4a34a92cf475ea71d14c3eca44e4f41cbd454ec861b1b6c1a34610f13cc9b·...·]-1">}</span><span·class="p">.</span><span·class="w"> |
| 154 | </span><span·class="p"·data-group-id="6 | 154 | </span><span·class="p"·data-group-id="6377808586-9">{</span><span·class="ss">engine_id</span><span·class="p">,</span><span·class="w">········</span><span·class="s">"mgrEngine"</span><span·class="p"·data-group-id="6377808586-9">}</span><span·class="p">.</span><span·class="w"> |
| 155 | </span><span·class="p"·data-group-id="6 | 155 | </span><span·class="p"·data-group-id="6377808586-10">{</span><span·class="ss">max_message_size</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">484</span><span·class="p"·data-group-id="6377808586-10">}</span><span·class="p">.</span></code></pre><p>The·value·of·<code·class="inline">engine_id</code>·is·a·string,·which·should·have·a·very·specific |
| 156 | structure.·See·RFC·2271/2571·for·details.</p><p>And·this·is·a·code·(snippet)·example·of·how·to·generate·this·file·in·runtime:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">ManagerDir</span><span·class="w">····</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"/tmp"</span><span·class="p">,</span><span·class="w"> | 156 | structure.·See·RFC·2271/2571·for·details.</p><p>And·this·is·a·code·(snippet)·example·of·how·to·generate·this·file·in·runtime:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">ManagerDir</span><span·class="w">····</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"/tmp"</span><span·class="p">,</span><span·class="w"> |
| 157 | </span><span·class="n">Port</span><span·class="w">··········</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">5000</span><span·class="p">,</span><span·class="w"> | 157 | </span><span·class="n">Port</span><span·class="w">··········</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">5000</span><span·class="p">,</span><span·class="w"> |
| 158 | </span><span·class="n">Addr4</span><span·class="w">·········</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 158 | </span><span·class="n">Addr4</span><span·class="w">·········</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="8810951998-1">{</span><span·class="mi">141</span><span·class="p">,</span><span·class="mi">213</span><span·class="p">,</span><span·class="mi">11</span><span·class="p">,</span><span·class="mi">24</span><span·class="p"·data-group-id="8810951998-1">}</span><span·class="p">,</span><span·class="w"> |
| 159 | </span><span·class="n">Addr6</span><span·class="w">·········</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 159 | </span><span·class="n">Addr6</span><span·class="w">·········</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="8810951998-2">{</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="[·...·truncated·by·diffoscope;·len:·175,·SHA:·9714a251d9a00be1d74c202ad3abde03abdc705534deae1129c9f7e46a08f3e7·...·]-2">}</span><span·class="p">,</span><span·class="w"> |
| 160 | </span><span·class="n">Transports</span><span·class="w">····</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 160 | </span><span·class="n">Transports</span><span·class="w">····</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="8810951998-3">[</span><span·class="p"·data-group-id="8810951998-4">{</span><span·class="ss">transportDomainUdpIpv4</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8810951998-5">{</span><span·class="n">Addr4</span><span·[·...·truncated·by·diffoscope;·len:·163,·SHA:·c3601771cbf903751a16a6b837462f93d1a9cf27e1e3583f6a2cf1951a45d4ca·...·]-4">}</span><span·class="p">,</span><span·class="w"> |
| 161 | ·················</span><span·class="p"·data-group-id=" | 161 | ·················</span><span·class="p"·data-group-id="8810951998-6">{</span><span·class="ss">transportDomainUdpIpv6</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8810951998-7">{</span><span·class="n">Addr6</span><span·class="p">,</span><span·class="w">·</span><span·class[·...·truncated·by·diffoscope;·len:·163,·SHA:·2ddda94e9ea5c73e219ecb2711251ad31e9b9dd606cc8150252b2bf57a670654·...·]-3">]</span><span·class="p">,</span><span·class="w"> |
| 162 | </span><span·class="n">EngineID</span><span·class="w">······</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"mgrEngine"</span><span·class="p">,</span><span·class="w"> | 162 | </span><span·class="n">EngineID</span><span·class="w">······</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"mgrEngine"</span><span·class="p">,</span><span·class="w"> |
| 163 | </span><span·class="n">MMS</span><span·class="w">···········</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">484</span><span·class="p">,</span><span·class="w"> | 163 | </span><span·class="n">MMS</span><span·class="w">···········</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">484</span><span·class="p">,</span><span·class="w"> |
| 164 | </span><span·class="n">ManagerConfig</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 164 | </span><span·class="n">ManagerConfig</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="8810951998-8">[</span><span·class="nc">snmpm_conf</span><span·class="p">:</span><span·class="nf">manager_entry</span><span·class="p"·data-group-id="8810951998-9">(</span><span·class="ss">transports</span><span·class="p">,</span><span·class="w">·······</spa[·...·truncated·by·diffoscope;·len:·76,·SHA:·f5d765fca719f9e2837dc5b3cadb05dc02c8ddc746dab5f26e8f801c5f1c6efd·...·]-9">)</span><span·class="p">,</span><span·class="w"> |
| 165 | ·················</span><span·class="nc">snmpm_conf</span><span·class="p">:</span><span·class="nf">manager_entry</span><span·class="p"·data-group-id=" | 165 | ·················</span><span·class="nc">snmpm_conf</span><span·class="p">:</span><span·class="nf">manager_entry</span><span·class="p"·data-group-id="8810951998-10">(</span><span·class="ss">engine_id</span><span·class="p">,</span><span·class="w">········</span><span·class="n">EngineID</span><span·class="p"·data-group-id="8810951998-10">)</span><span·class="p">,</span><span·class="w"> |
| 166 | ·················</span><span·class="nc">snmpm_conf</span><span·class="p">:</span><span·class="nf">manager_entry</span><span·class="p"·data-group-id=" | 166 | ·················</span><span·class="nc">snmpm_conf</span><span·class="p">:</span><span·class="nf">manager_entry</span><span·class="p"·data-group-id="8810951998-11">(</span><span·class="ss">max_message_size</span><span·class="p">,</span><span·class="w">·</span><span·class="n">MMS</span><span·class="p"·data-group-id="8810951998-11">)</span><span·class="p"·data-group-id="8810951998-8">]</span><span·class="p">,</span><span·class="w"> |
| 167 | </span><span·class="nc">snmpm_conf</span><span·class="p">:</span><span·class="nf">write_manager_config</span><span·class="p"·data-group-id=" | 167 | </span><span·class="nc">snmpm_conf</span><span·class="p">:</span><span·class="nf">write_manager_config</span><span·class="p"·data-group-id="8810951998-12">(</span><span·class="n">ManagerDir</span><span·class="p">,</span><span·class="w">·</span><span·class="n">ManagerConfig</span><span·class="p"·data-group-id="8810951998-12">)</span><span·class="p">,</span></code></pre><h2·id="users"·class="section-heading"> |
| 168 | ··<a·href="#users"·class="hover-link"> | 168 | ··<a·href="#users"·class="hover-link"> |
| 169 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 169 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 170 | ··</a> | 170 | ··</a> |
| 171 | ··<span·class="text">Users</span> | 171 | ··<span·class="text">Users</span> |
| 172 | </h2> | 172 | </h2> |
| 173 | <p>For·each·<em>manager·user</em>,·the·manager·needs·some·information.·This·information·is | 173 | <p>For·each·<em>manager·user</em>,·the·manager·needs·some·information.·This·information·is |
| 174 | either·added·in·the·<code·class="inline">users.conf</code>·config·file·or·by·calling·the | 174 | either·added·in·the·<code·class="inline">users.conf</code>·config·file·or·by·calling·the |
| 175 | <a·href="snmpm.html#register_user/4">register_user</a>·function·in·run-time.</p><p>Each·row·defines·a·<em>manager·user</em>·of·the·manager.</p><p>Each·entry·is·a·tuple·of·size·four:</p><p><code·class="inline">{UserId,·UserMod,·UserData,·DefaultAgentConfig}.</code></p><ul><li><code·class="inline">UserId</code>·is·any·term·(used·to·uniquely·identify·the·user).</li><li><code·class="inline">UserMod</code>·is·the·user·callback·module·(atom).</li><li><code·class="inline">UserData</code>·is·any·term·(passed·on·to·the·user·when·calling·the·<code·class="inline">UserMod</code>.</li><li><code·class="inline">DefaultAgentConfig</code>·is·a·list·of·default·agent·config's.·These·values·are | 175 | <a·href="snmpm.html#register_user/4">register_user</a>·function·in·run-time.</p><p>Each·row·defines·a·<em>manager·user</em>·of·the·manager.</p><p>Each·entry·is·a·tuple·of·size·four:</p><p><code·class="inline">{UserId,·UserMod,·UserData,·DefaultAgentConfig}.</code></p><ul><li><code·class="inline">UserId</code>·is·any·term·(used·to·uniquely·identify·the·user).</li><li><code·class="inline">UserMod</code>·is·the·user·callback·module·(atom).</li><li><code·class="inline">UserData</code>·is·any·term·(passed·on·to·the·user·when·calling·the·<code·class="inline">UserMod</code>.</li><li><code·class="inline">DefaultAgentConfig</code>·is·a·list·of·default·agent·config's.·These·values·are |
| 176 | used·as·default·values·when·this·user·registers·agents.</li></ul><p>And·this·is·a·code·(snippet)·example·of·how·to·generate·this·file·in·runtime:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">ManagerDir</span><span·class="w">·········</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"/tmp"</span><span·class="p">,</span><span·class="w"> | 176 | used·as·default·values·when·this·user·registers·agents.</li></ul><p>And·this·is·a·code·(snippet)·example·of·how·to·generate·this·file·in·runtime:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">ManagerDir</span><span·class="w">·········</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"/tmp"</span><span·class="p">,</span><span·class="w"> |
| 177 | </span><span·class="n">UserID</span><span·class="w">·············</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">make_ref</span><span·class="p"·data-group-id=" | 177 | </span><span·class="n">UserID</span><span·class="w">·············</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">make_ref</span><span·class="p"·data-group-id="7628099875-1">(</span><span·class="p"·data-group-id="7628099875-1">)</span><span·class="p">,</span><span·class="w"> |
| 178 | </span><span·class="n">UserMod</span><span·class="w">············</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">my_manager_callback_mod</span><span·class="p">,</span><span·class="w"> | 178 | </span><span·class="n">UserMod</span><span·class="w">············</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">my_manager_callback_mod</span><span·class="p">,</span><span·class="w"> |
| 179 | </span><span·class="n">UserData</span><span·class="w">···········</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">self</span><span·class="p"·data-group-id=" | 179 | </span><span·class="n">UserData</span><span·class="w">···········</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">self</span><span·class="p"·data-group-id="7628099875-2">(</span><span·class="p"·data-group-id="7628099875-2">)</span><span·class="p">,</span><span·class="w"> |
| 180 | </span><span·class="n">DefaultAgentConfig</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 180 | </span><span·class="n">DefaultAgentConfig</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="7628099875-3">[</span><span·class="p"·data-group-id="7628099875-4">{</span><span·class="ss">version</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">v1</span><span·class="p"·data-group-id="7628099875-4">}</span><span·class="p">,</span[·...·truncated·by·diffoscope;·len:·547,·SHA:·8876a455bfc555c48065c86c4d2ee3cb529a25e01511184ecdebef7a2971dfb5·...·]5-3">]</span><span·class="p">,</span><span·class="w"> |
| 181 | </span><span·class="n">UsersConfig</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 181 | </span><span·class="n">UsersConfig</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="7628099875-7">[</span><span·class="nc">snmpm_conf</span><span·class="p">:</span><span·class="nf">users_entry</span><span·class="p"·data-group-id="7628099875-8">(</span><span·class="n">UserID</span><span·class="p">,</span><span·class="w">·</span><span·class="n">UserMod</span><span·class="p">,</span><span·class="w">·</span><span·class="n">UserData</span><span·class="p">,</span><span·class="w"> |
| 182 | ······································</span><span·class="n">DefaultAgentConfig</span><span·class="p"·data-group-id=" | 182 | ······································</span><span·class="n">DefaultAgentConfig</span><span·class="p"·data-group-id="7628099875-8">)</span><span·class="p"·data-group-id="7628099875-7">]</span><span·class="p">,</span><span·class="w"> |
| 183 | </span><span·class="nc">snmpm_conf</span><span·class="p">:</span><span·class="nf">write_users_config</span><span·class="p"·data-group-id=" | 183 | </span><span·class="nc">snmpm_conf</span><span·class="p">:</span><span·class="nf">write_users_config</span><span·class="p"·data-group-id="7628099875-9">(</span><span·class="n">ManagerDir</span><span·class="p">,</span><span·class="w">·</span><span·class="n">UsersConfig</span><span·class="p"·data-group-id="7628099875-9">)</span><span·class="p">,</span></code></pre><h2·id="agents"·class="section-heading"> |
| 184 | ··<a·href="#agents"·class="hover-link"> | 184 | ··<a·href="#agents"·class="hover-link"> |
| 185 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 185 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 186 | ··</a> | 186 | ··</a> |
| 187 | ··<span·class="text">Agents</span> | 187 | ··<span·class="text">Agents</span> |
| 188 | </h2> | 188 | </h2> |
| 189 | <p>The·information·needed·to·handle·agents·should·be·stored·in·a·file·called | 189 | <p>The·information·needed·to·handle·agents·should·be·stored·in·a·file·called |
| 190 | <code·class="inline">agents.conf</code>.·It·is·also·possible·to·add·agents·in·run-time·by·calling·the | 190 | <code·class="inline">agents.conf</code>.·It·is·also·possible·to·add·agents·in·run-time·by·calling·the |
| Offset 194, 31 lines modified | Offset 194, 31 lines modified | ||
| 194 | tuple·or·a·traditional·SNMP·integer·list·containing·port·number.·<code·class="inline">IpAddr</code>·is | 194 | tuple·or·a·traditional·SNMP·integer·list·containing·port·number.·<code·class="inline">IpAddr</code>·is |
| 195 | either·a·regular·Erlang/OTP·<a·href="../../../../lib/kernel-10.3/doc/html/inet.html#t:ip_address/0"><code·class="inline">ip_address()</code></a>·or·a | 195 | either·a·regular·Erlang/OTP·<a·href="../../../../lib/kernel-10.3/doc/html/inet.html#t:ip_address/0"><code·class="inline">ip_address()</code></a>·or·a |
| 196 | traditional·SNMP·integer·list·not·containing·port·number,·and·<code·class="inline">IpPort</code>·is·an | 196 | traditional·SNMP·integer·list·not·containing·port·number,·and·<code·class="inline">IpPort</code>·is·an |
| 197 | integer.</li><li><code·class="inline">EngineID</code>·is·the·engine-id·of·the·agent·(string).</li><li><p><code·class="inline">Timeout</code>·is·re-transmission·timeout·(<code·class="inline">infinity</code>·|·integer).</p></li><li><code·class="inline">MaxMessageSize</code>·is·the·max·message·size·for·outgoing·messages·to·this·agent | 197 | integer.</li><li><code·class="inline">EngineID</code>·is·the·engine-id·of·the·agent·(string).</li><li><p><code·class="inline">Timeout</code>·is·re-transmission·timeout·(<code·class="inline">infinity</code>·|·integer).</p></li><li><code·class="inline">MaxMessageSize</code>·is·the·max·message·size·for·outgoing·messages·to·this·agent |
| 198 | (integer).</li><li><p><code·class="inline">Version</code>·is·the·version·(v1·|·v2·|·v3).</p></li><li><p><code·class="inline">SecModel</code>·is·the·security·model·(any·|·v1·|·v2c·|·usm).</p></li><li><code·class="inline">SecName</code>·is·the·security·name·(string).</li><li><p><code·class="inline">SecLevel</code>·is·security·level·(noAuthNoPriv·|·authNoPriv·|·authPriv).</p></li></ul><p>Legacy·configurations·using·tuples·without·<code·class="inline">Domain</code>·element,·as·well·as·with·all | 198 | (integer).</li><li><p><code·class="inline">Version</code>·is·the·version·(v1·|·v2·|·v3).</p></li><li><p><code·class="inline">SecModel</code>·is·the·security·model·(any·|·v1·|·v2c·|·usm).</p></li><li><code·class="inline">SecName</code>·is·the·security·name·(string).</li><li><p><code·class="inline">SecLevel</code>·is·security·level·(noAuthNoPriv·|·authNoPriv·|·authPriv).</p></li></ul><p>Legacy·configurations·using·tuples·without·<code·class="inline">Domain</code>·element,·as·well·as·with·all |
| 199 | <code·class="inline">TDomain</code>,·<code·class="inline">Ip</code>·and·<code·class="inline">Port</code>·elements·still·work.</p><p>And·this·is·a·code·(snippet)·example·of·how·to·generate·this·file·in·runtime:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">ManagerDir</span><span·class="w">···</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"/tmp"</span><span·class="p">,</span><span·class="w"> | 199 | <code·class="inline">TDomain</code>,·<code·class="inline">Ip</code>·and·<code·class="inline">Port</code>·elements·still·work.</p><p>And·this·is·a·code·(snippet)·example·of·how·to·generate·this·file·in·runtime:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">ManagerDir</span><span·class="w">···</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"/tmp"</span><span·class="p">,</span><span·class="w"> |
| 200 | </span><span·class="n">UserID</span><span·class="w">·······</span><span·class="o">=</span><span·class="w">·</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> | 200 | </span><span·class="n">UserID</span><span·class="w">·······</span><span·class="o">=</span><span·class="w">·</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> |
| 201 | </span><span·class="n">AgentsConfig</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 201 | </span><span·class="n">AgentsConfig</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="3684472341-1">[</span><span·class="nc">snmpm_conf</span><span·class="p">:</span><span·class="nf">agents_entry</span><span·class="p"·data-group-id="3684472341-2">(</span><span·class="n">UserID</span><span·class="p">,</span><span·class="w"> |
| 202 | ········································</span><span·class="s">"target·1"</span><span·class="p">,</span><span·class="w"> | 202 | ········································</span><span·class="s">"target·1"</span><span·class="p">,</span><span·class="w"> |
| 203 | » » » » » </span><span·class="s">"FOOBAR"</span><span·class="p">,</span><span·class="w"> | 203 | » » » » » </span><span·class="s">"FOOBAR"</span><span·class="p">,</span><span·class="w"> |
| 204 | » » » » » </span><span·class="ss">transportDomainUdpIpv4</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id=" | 204 | » » » » » </span><span·class="ss">transportDomainUdpIpv4</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3684472341-3">{</span><span·class="p"·data-group-id="3684472341-4">{</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">2</span><span·class="p">,</span><span·class="mi">3</span><span·class="p">,</span><span·class="mi">4</span><span·cla[·...·truncated·by·diffoscope;·len:·136,·SHA:·ca25031c7cee92c3593267bd28e28341f4db59f4835efdfafa0f514b852e969e·...·]-3">}</span><span·class="p">,</span><span·class="w"> |
| 205 | » » » » » </span><span·class="s">"agent·Engine·1"</span><span·class="w"> | 205 | » » » » » </span><span·class="s">"agent·Engine·1"</span><span·class="w"> |
| 206 | » » » » » </span><span·class="mi">1500</span><span·class="p">,</span><span·class="w"> | 206 | » » » » » </span><span·class="mi">1500</span><span·class="p">,</span><span·class="w"> |
| 207 | » » » » » </span><span·class="mi">484</span><span·class="p">.</span><span·class="w"> | 207 | » » » » » </span><span·class="mi">484</span><span·class="p">.</span><span·class="w"> |
| 208 | » » » » » </span><span·class="ss">v1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">v1</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"sec·name·1"</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">noAuthNoPriv</span><span·class="p"·data-group-id=" | 208 | » » » » » </span><span·class="ss">v1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">v1</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"sec·name·1"</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">noAuthNoPriv</span><span·class="p"·data-group-id="3684472341-2">)</span><span·class="p">,</span><span·class="w"> |
| 209 | » » </span><span·class="nc">snmpm_conf</span><span·class="p">:</span><span·class="nf">agents_entry</span><span·class="p"·data-group-id=" | 209 | » » </span><span·class="nc">snmpm_conf</span><span·class="p">:</span><span·class="nf">agents_entry</span><span·class="p"·data-group-id="3684472341-5">(</span><span·class="n">UserID</span><span·class="p">,</span><span·class="w"> |
| 210 | ········································</span><span·class="s">"target·2"</span><span·class="p">,</span><span·class="w"> | 210 | ········································</span><span·class="s">"target·2"</span><span·class="p">,</span><span·class="w"> |
| 211 | » » » » » </span><span·class="s">"FOOBAR"</span><span·class="p">,</span><span·class="w"> | 211 | » » » » » </span><span·class="s">"FOOBAR"</span><span·class="p">,</span><span·class="w"> |
| 212 | » » » » » </span><span·class="ss">transportDomainUdpIpv4</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id=" | 212 | » » » » » </span><span·class="ss">transportDomainUdpIpv4</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3684472341-6">{</span><span·class="p"·data-group-id="3684472341-7">{</span><span·class="mi">5</span><span·class="p">,</span><span·class="mi">6</span><span·class="p">,</span><span·class="mi">7</span><span·class="p">,</span><span·class="mi">8</span><span·cla[·...·truncated·by·diffoscope;·len:·136,·SHA:·809c1c522431d58b4f7472c45e13cdda07eee7b54d28c32aa62c0fd00120e331·...·]-6">}</span><span·class="p">,</span><span·class="w"> |
| 213 | » » » » » </span><span·class="s">"agent·Engine·2"</span><span·class="w"> | 213 | » » » » » </span><span·class="s">"agent·Engine·2"</span><span·class="w"> |
| 214 | » » » » » </span><span·class="mi">1500</span><span·class="p">,</span><span·class="w"> | 214 | » » » » » </span><span·class="mi">1500</span><span·class="p">,</span><span·class="w"> |
| 215 | » » » » » </span><span·class="mi">1000</span><span·class="p">.</span><span·class="w"> | 215 | » » » » » </span><span·class="mi">1000</span><span·class="p">.</span><span·class="w"> |
| 216 | » » » » » </span><span·class="ss">v1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">v1</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"sec·name·2"</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">noAuthNoPriv</span><span·class="p"·data-group-id=" | 216 | » » » » » </span><span·class="ss">v1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">v1</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"sec·name·2"</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">noAuthNoPriv</span><span·class="p"·data-group-id="3684472341-5">)</span><span·class="p"·data-group-id="3684472341-1">]</span><span·class="p">,</span><span·class="w"> |
| 217 | </span><span·class="nc">snmpm_conf</span><span·class="p">:</span><span·class="nf">write_agents_config</span><span·class="p"·data-group-id=" | 217 | </span><span·class="nc">snmpm_conf</span><span·class="p">:</span><span·class="nf">write_agents_config</span><span·class="p"·data-group-id="3684472341-8">(</span><span·class="n">ManagerDir</span><span·class="p">,</span><span·class="w">·</span><span·class="n">UsersConfig</span><span·class="p"·data-group-id="3684472341-8">)</span><span·class="p">,</span></code></pre><h2·id="security-data-for-usm"·class="section-heading"> |
| 218 | ··<a·href="#security-data-for-usm"·class="hover-link"> | 218 | ··<a·href="#security-data-for-usm"·class="hover-link"> |
| 219 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 219 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 220 | ··</a> | 220 | ··</a> |
| 221 | ··<span·class="text">Security·data·for·USM</span> | 221 | ··<span·class="text">Security·data·for·USM</span> |
| 222 | </h2> | 222 | </h2> |
| 223 | <p>The·information·about·Security·data·for·USM·should·be·stored·in·a·file·called | 223 | <p>The·information·about·Security·data·for·USM·should·be·stored·in·a·file·called |
| 224 | <code·class="inline">usm.conf</code>,·which·must·be·present·if·the·manager·wishes·to·use·SNMPv3·when | 224 | <code·class="inline">usm.conf</code>,·which·must·be·present·if·the·manager·wishes·to·use·SNMPv3·when |
| Offset 229, 21 lines modified | Offset 229, 21 lines modified | ||
| 229 | <code·class="inline">usmHMAC192SH256AuthProtocol</code>,·<code·class="inline">usmHMAC256SHA384AuthProtocol</code>·or | 229 | <code·class="inline">usmHMAC192SH256AuthProtocol</code>,·<code·class="inline">usmHMAC256SHA384AuthProtocol</code>·or |
| 230 | <code·class="inline">usmHMAC384SHA512AuthProtocol</code>.</p></li><li><p><code·class="inline">AuthKey</code>·is·a·list·(of·integer).·This·is·the·User's·secret·localized | 230 | <code·class="inline">usmHMAC384SHA512AuthProtocol</code>.</p></li><li><p><code·class="inline">AuthKey</code>·is·a·list·(of·integer).·This·is·the·User's·secret·localized |
| 231 | authentication·key.·It·is·not·visible·in·the·MIB.·The·length·(number·of | 231 | authentication·key.·It·is·not·visible·in·the·MIB.·The·length·(number·of |
| 232 | octets)·of·this·key·needs·to·be:</p><ul><li>16·if·<code·class="inline">usmHMACMD5AuthProtocol</code>.</li><li>20·if·<code·class="inline">usmHMACSHAAuthProtocol</code>.</li><li>28·if·<code·class="inline">usmHMAC128SHA224AuthProtocol</code>.</li><li>32·if·<code·class="inline">usmHMAC192SHA256AuthProtocol</code>.</li><li>48·if·<code·class="inline">usmHMAC256SHA384AuthProtocol</code>.</li><li>64·if·<code·class="inline">usmHMAC384SHA512AuthProtocol</code>.</li></ul></li><li><p><code·class="inline">PrivP</code>·is·a·<code·class="inline">usmNoPrivProtocol</code>,·<code·class="inline">usmDESPrivProtocol</code>·or | 232 | octets)·of·this·key·needs·to·be:</p><ul><li>16·if·<code·class="inline">usmHMACMD5AuthProtocol</code>.</li><li>20·if·<code·class="inline">usmHMACSHAAuthProtocol</code>.</li><li>28·if·<code·class="inline">usmHMAC128SHA224AuthProtocol</code>.</li><li>32·if·<code·class="inline">usmHMAC192SHA256AuthProtocol</code>.</li><li>48·if·<code·class="inline">usmHMAC256SHA384AuthProtocol</code>.</li><li>64·if·<code·class="inline">usmHMAC384SHA512AuthProtocol</code>.</li></ul></li><li><p><code·class="inline">PrivP</code>·is·a·<code·class="inline">usmNoPrivProtocol</code>,·<code·class="inline">usmDESPrivProtocol</code>·or |
| 233 | <code·class="inline">usmAesCfb128Protocol</code>.</p></li><li><p><code·class="inline">PrivKey</code>·is·a·list·(of·integer).·This·is·the·User's·secret·localized | 233 | <code·class="inline">usmAesCfb128Protocol</code>.</p></li><li><p><code·class="inline">PrivKey</code>·is·a·list·(of·integer).·This·is·the·User's·secret·localized |
| 234 | encryption·key.·It·is·not·visible·in·the·MIB.·The·length·of·this·key·needs·to | 234 | encryption·key.·It·is·not·visible·in·the·MIB.·The·length·of·this·key·needs·to |
| 235 | be·16·if·<code·class="inline">usmDESPrivProtocol</code>·or·<code·class="inline">usmAesCfb128Protocol</code>·is·used.</p></li></ul><pre><code·class="makeup·erlang"·translate="no"><span·class="n">ManagerDir</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"/tmp"</span><span·class="p">,</span><span·class="w"> | 235 | be·16·if·<code·class="inline">usmDESPrivProtocol</code>·or·<code·class="inline">usmAesCfb128Protocol</code>·is·used.</p></li></ul><pre><code·class="makeup·erlang"·translate="no"><span·class="n">ManagerDir</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"/tmp"</span><span·class="p">,</span><span·class="w"> |
| 236 | </span><span·class="n">UsmConfig</span><span·class="w">··</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 236 | </span><span·class="n">UsmConfig</span><span·class="w">··</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="8312201177-1">[</span><span·class="nc">snmpm_conf</span><span·class="p">:</span><span·class="nf">usm_entry</span><span·class="p"·data-group-id="8312201177-2">(</span><span·class="s">"engine"</span><span·class="p">,</span><span·class="w"> |
| 237 | ···································</span><span·class="s">"user·1"</span><span·class="p">,</span><span·class="w"> | 237 | ···································</span><span·class="s">"user·1"</span><span·class="p">,</span><span·class="w"> |
| 238 | » ···························</span><span·class="ss">usmNoAuthProtocol</span><span·class="p">,</span><span·class="w"> | 238 | » ···························</span><span·class="ss">usmNoAuthProtocol</span><span·class="p">,</span><span·class="w"> |
| 239 | » ·» » » ···</span><span·class="p"·data-group-id=" | 239 | » ·» » » ···</span><span·class="p"·data-group-id="8312201177-3">[</span><span·class="p"·data-group-id="8312201177-3">]</span><span·class="p">,</span><span·class="w"> |
| 240 | » ·» » » ···</span><span·class="ss">usmNoPrivProtocol</span><span·class="p">,</span><span·class="w"> | 240 | » ·» » » ···</span><span·class="ss">usmNoPrivProtocol</span><span·class="p">,</span><span·class="w"> |
| 241 | » ·» » » ···</span><span·class="p"·data-group-id=" | 241 | » ·» » » ···</span><span·class="p"·data-group-id="8312201177-4">[</span><span·class="p"·data-group-id="8312201177-4">]</span><span·class="p"·data-group-id="8312201177-2">)</span><span·class="p"·data-group-id="8312201177-1">]</span><span·class="p">,</span><span·class="w"> |
| 242 | </span><span·class="nc">snmpm_conf</span><span·class="p">:</span><span·class="nf">write_usm_config</span><span·class="p"·data-group-id=" | 242 | </span><span·class="nc">snmpm_conf</span><span·class="p">:</span><span·class="nf">write_usm_config</span><span·class="p"·data-group-id="8312201177-5">(</span><span·class="n">ManagerDir</span><span·class="p">,</span><span·class="w">·</span><span·class="n">UsmConfig</span><span·class="p"·data-group-id="8312201177-5">)</span><span·class="p">,</span></code></pre> |
| 243 | </div> | 243 | </div> |
| 244 | <div·class="bottom-actions"·id="bottom-actions"> | 244 | <div·class="bottom-actions"·id="bottom-actions"> |
| 245 | ··<div·class="bottom-actions-item"> | 245 | ··<div·class="bottom-actions-item"> |
| 246 | ······<a·href="snmp_agent_config_files.html"·class="bottom-actions-button"·rel="prev"> | 246 | ······<a·href="snmp_agent_config_files.html"·class="bottom-actions-button"·rel="prev"> |
| 247 | ········<span·class="subheader"> | 247 | ········<span·class="subheader"> |
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| 286 | ······<p·class="built-using"> | 286 | ······<p·class="built-using"> |
| 287 | ········Built·using | 287 | ········Built·using |
| 288 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 288 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 289 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 289 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 290 | ······</p> | 290 | ······</p> |
| 291 | <p>Copyright·©·1996-202 | 291 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 292 | ····</footer> | 292 | ····</footer> |
| 293 | ··</div> | 293 | ··</div> |
| 294 | </main> | 294 | </main> |
| 295 | </div> | 295 | </div> |
| 296 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 296 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 297 | ··<script> | 297 | ··<script> |
| 298 | ··let·initialized·=·false; | 298 | ··let·initialized·=·false; |
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| 209 | ······<p·class="built-using"> | 209 | ······<p·class="built-using"> |
| 210 | ········Built·using | 210 | ········Built·using |
| 211 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 211 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 212 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 212 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 213 | ······</p> | 213 | ······</p> |
| 214 | <p>Copyright·©·1996-202 | 214 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 215 | ····</footer> | 215 | ····</footer> |
| 216 | ··</div> | 216 | ··</div> |
| 217 | </main> | 217 | </main> |
| 218 | </div> | 218 | </div> |
| 219 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 219 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 220 | ··<script> | 220 | ··<script> |
| 221 | ··let·initialized·=·false; | 221 | ··let·initialized·=·false; |
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| 251 | ······<p·class="built-using"> | 251 | ······<p·class="built-using"> |
| 252 | ········Built·using | 252 | ········Built·using |
| 253 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 253 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 254 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 254 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 255 | ······</p> | 255 | ······</p> |
| 256 | <p>Copyright·©·1996-202 | 256 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 257 | ····</footer> | 257 | ····</footer> |
| 258 | ··</div> | 258 | ··</div> |
| 259 | </main> | 259 | </main> |
| 260 | </div> | 260 | </div> |
| 261 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 261 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 262 | ··<script> | 262 | ··<script> |
| 263 | ··let·initialized·=·false; | 263 | ··let·initialized·=·false; |
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| 137 | before·it·will·be·compiled.·This·text·file·must·have·the·same·name·as·the·MIB, | 137 | before·it·will·be·compiled.·This·text·file·must·have·the·same·name·as·the·MIB, |
| 138 | but·with·the·suffix·<code·class="inline">.mib</code>.·This·is·necessary·for·handling·the·<code·class="inline">IMPORT</code> | 138 | but·with·the·suffix·<code·class="inline">.mib</code>.·This·is·necessary·for·handling·the·<code·class="inline">IMPORT</code> |
| 139 | statement.</p><p>The·association·file,·which·contains·the·names·of·instrumentation·functions·for | 139 | statement.</p><p>The·association·file,·which·contains·the·names·of·instrumentation·functions·for |
| 140 | the·MIB,·should·have·the·suffix·<code·class="inline">.funcs</code>.·If·the·compiler·does·not·find·the | 140 | the·MIB,·should·have·the·suffix·<code·class="inline">.funcs</code>.·If·the·compiler·does·not·find·the |
| 141 | association·file,·it·gives·a·warning·message·and·uses·default·instrumentation | 141 | association·file,·it·gives·a·warning·message·and·uses·default·instrumentation |
| 142 | functions.·(See·<a·href="snmp_instr_functions.html#snmp_3">Default·Instrumentation</a>·for | 142 | functions.·(See·<a·href="snmp_instr_functions.html#snmp_3">Default·Instrumentation</a>·for |
| 143 | more·details).</p><p>The·MIB·compiler·is·started·with·a·call·to·<code·class="inline">snmpc:compile(<mibname>).</code>·For | 143 | more·details).</p><p>The·MIB·compiler·is·started·with·a·call·to·<code·class="inline">snmpc:compile(<mibname>).</code>·For |
| 144 | example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">snmpc</span><span·class="p">:</span><span·class="nf">compile</span><span·class="p"·data-group-id=" | 144 | example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">snmpc</span><span·class="p">:</span><span·class="nf">compile</span><span·class="p"·data-group-id="0695229115-1">(</span><span·class="s">"RFC1213-MIB"</span><span·class="p"·data-group-id="0695229115-1">)</span><span·class="p">.</span></code></pre><p>The·output·is·a·new·file·which·is·called·<code·class="inline"><mibname>.bin</code>.</p><p>The·MIB·compiler·understands·both·SMIv1·and·SMIv2·MIBs.·It·uses·the |
| 145 | MODULE-IDENTITY·statement·to·determinate·if·the·MIB·is·written·in·SMI·version·1 | 145 | MODULE-IDENTITY·statement·to·determinate·if·the·MIB·is·written·in·SMI·version·1 |
| 146 | or·2.</p><h2·id="importing-mibs"·class="section-heading"> | 146 | or·2.</p><h2·id="importing-mibs"·class="section-heading"> |
| 147 | ··<a·href="#importing-mibs"·class="hover-link"> | 147 | ··<a·href="#importing-mibs"·class="hover-link"> |
| 148 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 148 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 149 | ··</a> | 149 | ··</a> |
| 150 | ··<span·class="text">Importing·MIBs</span> | 150 | ··<span·class="text">Importing·MIBs</span> |
| 151 | </h2> | 151 | </h2> |
| 152 | <p>The·compiler·handles·the·<code·class="inline">IMPORT</code>·statement.·It·is·important·to·import·the | 152 | <p>The·compiler·handles·the·<code·class="inline">IMPORT</code>·statement.·It·is·important·to·import·the |
| 153 | compiled·file·and·not·the·ASN.1·(source)·file.·A·MIB·must·be·recompiled·to·make | 153 | compiled·file·and·not·the·ASN.1·(source)·file.·A·MIB·must·be·recompiled·to·make |
| 154 | changes·visible·to·other·MIBs·importing·it.</p><p>The·compiled·files·of·the·imported·MIBs·must·be·present·in·the·current | 154 | changes·visible·to·other·MIBs·importing·it.</p><p>The·compiled·files·of·the·imported·MIBs·must·be·present·in·the·current |
| 155 | directory,·or·a·directory·in·the·current·path.·The·path·is·supplied·with·the | 155 | directory,·or·a·directory·in·the·current·path.·The·path·is·supplied·with·the |
| 156 | <code·class="inline">{i,·Path}</code>·option,·for·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">snmpc</span><span·class="p">:</span><span·class="nf">compile</span><span·class="p"·data-group-id=" | 156 | <code·class="inline">{i,·Path}</code>·option,·for·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">snmpc</span><span·class="p">:</span><span·class="nf">compile</span><span·class="p"·data-group-id="0068839771-1">(</span><span·class="s">"MY-MIB"</span><span·class="p">,</span><span·class="w"> |
| 157 | ·······</span><span·class="p"·data-group-id=" | 157 | ·······</span><span·class="p"·data-group-id="0068839771-2">[</span><span·class="p"·data-group-id="0068839771-3">{</span><span·class="ss">i</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0068839771-4">[</span><span·class="s">"friend_mibs/"</span><span·cl[·...·truncated·by·diffoscope;·len:·292,·SHA:·5f0b8ddb80b5b7c1f12dc6c960803e46a0f34345018fef69178bcebe5b9bea1f·...·]-1">)</span><span·class="p">.</span></code></pre><p>It·is·also·possible·to·import·MIBs·from·OTP·applications·in·an·<code·class="inline">"include_lib"</code> |
| 158 | like·fashion·with·the·<code·class="inline">il</code>·option.·Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">snmpc</span><span·class="p">:</span><span·class="nf">compile</span><span·class="p"·data-group-id=" | 158 | like·fashion·with·the·<code·class="inline">il</code>·option.·Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">snmpc</span><span·class="p">:</span><span·class="nf">compile</span><span·class="p"·data-group-id="0300741675-1">(</span><span·class="s">"MY-MIB"</span><span·class="p">,</span><span·class="w"> |
| 159 | ·······</span><span·class="p"·data-group-id=" | 159 | ·······</span><span·class="p"·data-group-id="0300741675-2">[</span><span·class="p"·data-group-id="0300741675-3">{</span><span·class="ss">il</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0300741675-4">[</span><span·class="s">"snmp/priv/mibs/"</span><spa[·...·truncated·by·diffoscope;·len:·295,·SHA:·bd636180baaa2f36b02cd41fd3e66b316946867dae5af1f42d45c52716def464·...·]-1">)</span><span·class="p">.</span></code></pre><p>finds·the·latest·version·of·the·<code·class="inline">snmp</code>·and·<code·class="inline">myapp</code>·applications·in·the·OTP |
| 160 | system·and·uses·the·expanded·paths·as·include·paths.</p><p>Note·that·an·SMIv2·MIB·can·import·an·SMIv1·MIB·and·vice·versa.</p><p>The·following·MIBs·are·built-ins·of·the·Erlang·SNMP·compiler:·SNMPv2-SMI, | 160 | system·and·uses·the·expanded·paths·as·include·paths.</p><p>Note·that·an·SMIv2·MIB·can·import·an·SMIv1·MIB·and·vice·versa.</p><p>The·following·MIBs·are·built-ins·of·the·Erlang·SNMP·compiler:·SNMPv2-SMI, |
| 161 | RFC-1215,·RFC-1212,·SNMPv2-TC,·SNMPv2-CONF,·and·RFC1155-SMI.·They·cannot | 161 | RFC-1215,·RFC-1212,·SNMPv2-TC,·SNMPv2-CONF,·and·RFC1155-SMI.·They·cannot |
| 162 | therefore·be·compiled·separately.</p><h2·id="mib-consistency-checking"·class="section-heading"> | 162 | therefore·be·compiled·separately.</p><h2·id="mib-consistency-checking"·class="section-heading"> |
| 163 | ··<a·href="#mib-consistency-checking"·class="hover-link"> | 163 | ··<a·href="#mib-consistency-checking"·class="hover-link"> |
| 164 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 164 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 165 | ··</a> | 165 | ··</a> |
| 166 | ··<span·class="text">MIB·Consistency·Checking</span> | 166 | ··<span·class="text">MIB·Consistency·Checking</span> |
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| 262 | ······<p·class="built-using"> | 262 | ······<p·class="built-using"> |
| 263 | ········Built·using | 263 | ········Built·using |
| 264 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 264 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 265 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 265 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 266 | ······</p> | 266 | ······</p> |
| 267 | <p>Copyright·©·1996-202 | 267 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 268 | ····</footer> | 268 | ····</footer> |
| 269 | ··</div> | 269 | ··</div> |
| 270 | </main> | 270 | </main> |
| 271 | </div> | 271 | </div> |
| 272 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 272 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 273 | ··<script> | 273 | ··<script> |
| 274 | ··let·initialized·=·false; | 274 | ··let·initialized·=·false; |
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| 468 | ······<p·class="built-using"> | 468 | ······<p·class="built-using"> |
| 469 | ········Built·using | 469 | ········Built·using |
| 470 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 470 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 471 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 471 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 472 | ······</p> | 472 | ······</p> |
| 473 | <p>Copyright·©·1996-202 | 473 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 474 | ····</footer> | 474 | ····</footer> |
| 475 | ··</div> | 475 | ··</div> |
| 476 | </main> | 476 | </main> |
| 477 | </div> | 477 | </div> |
| 478 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 478 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 479 | ··<script> | 479 | ··<script> |
| 480 | ··let·initialized·=·false; | 480 | ··let·initialized·=·false; |
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| 130 | ····<section·id="moduledoc"> | 130 | ····<section·id="moduledoc"> |
| 131 | <p>Encode·and·Decode·Functions·for·SNMP·PDUs</p><p>RFC1157,·RFC1905·and/or·RFC2272·should·be·studied·carefully·before·using·this | 131 | <p>Encode·and·Decode·Functions·for·SNMP·PDUs</p><p>RFC1157,·RFC1905·and/or·RFC2272·should·be·studied·carefully·before·using·this |
| 132 | module,·<code·class="inline">snmp_pdus</code>.</p><p>The·module·<code·class="inline">snmp_pdus</code>·contains·functions·for·encoding·and·decoding·of·SNMP | 132 | module,·<code·class="inline">snmp_pdus</code>.</p><p>The·module·<code·class="inline">snmp_pdus</code>·contains·functions·for·encoding·and·decoding·of·SNMP |
| 133 | protocol·data·units·(PDUs).·In·short,·this·module·converts·a·list·of·bytes·to | 133 | protocol·data·units·(PDUs).·In·short,·this·module·converts·a·list·of·bytes·to |
| 134 | Erlang·record·representations·and·vice·versa.·The·record·definitions·can·be | 134 | Erlang·record·representations·and·vice·versa.·The·record·definitions·can·be |
| 135 | found·in·the·file·<code·class="inline">snmp/include/snmp_types.hrl</code>.·If·snmpv3·is·used,·the·module | 135 | found·in·the·file·<code·class="inline">snmp/include/snmp_types.hrl</code>.·If·snmpv3·is·used,·the·module |
| 136 | that·includes·<code·class="inline">snmp_types.hrl</code>·must·define·the·constant·<code·class="inline">SNMP_USE_V3</code>·before·the | 136 | that·includes·<code·class="inline">snmp_types.hrl</code>·must·define·the·constant·<code·class="inline">SNMP_USE_V3</code>·before·the |
| 137 | header·file·is·included.·Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">define</span><span·class="p"·data-group-id=" | 137 | header·file·is·included.·Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">define</span><span·class="p"·data-group-id="7281899867-1">(</span><span·class="n">SNMP_USE_V3</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">true</span><span·class="p"·data-group-id="7281899867-1">)</span><span·class="p">.</span><span·class="w"> |
| 138 | </span><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id=" | 138 | </span><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id="7281899867-2">(</span><span·class="s">"snmp/include/snmp_types.hrl"</span><span·class="p"·data-group-id="7281899867-2">)</span><span·class="p">.</span></code></pre><p>Encoding·and·decoding·must·be·done·explicitly·when·writing·your·own·Net·if |
| 139 | process.</p> | 139 | process.</p> |
| 140 | ····</section> | 140 | ····</section> |
| 141 | </div> | 141 | </div> |
| 142 | ··<section·id="summary"·class="details-list"> | 142 | ··<section·id="summary"·class="details-list"> |
| 143 | ····<h1·class="section-heading"> | 143 | ····<h1·class="section-heading"> |
| Offset 1007, 15 lines modified | Offset 1007, 15 lines modified | ||
| 1007 | ······<p·class="built-using"> | 1007 | ······<p·class="built-using"> |
| 1008 | ········Built·using | 1008 | ········Built·using |
| 1009 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1009 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1010 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1010 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1011 | ······</p> | 1011 | ······</p> |
| 1012 | <p>Copyright·©·1996-202 | 1012 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1013 | ····</footer> | 1013 | ····</footer> |
| 1014 | ··</div> | 1014 | ··</div> |
| 1015 | </main> | 1015 | </main> |
| 1016 | </div> | 1016 | </div> |
| 1017 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1017 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1018 | ··<script> | 1018 | ··<script> |
| 1019 | ··let·initialized·=·false; | 1019 | ··let·initialized·=·false; |
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| 410 | ······<p·class="built-using"> | 410 | ······<p·class="built-using"> |
| 411 | ········Built·using | 411 | ········Built·using |
| 412 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 412 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 413 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 413 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 414 | ······</p> | 414 | ······</p> |
| 415 | <p>Copyright·©·1996-202 | 415 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 416 | ····</footer> | 416 | ····</footer> |
| 417 | ··</div> | 417 | ··</div> |
| 418 | </main> | 418 | </main> |
| 419 | </div> | 419 | </div> |
| 420 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 420 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 421 | ··<script> | 421 | ··<script> |
| 422 | ··let·initialized·=·false; | 422 | ··let·initialized·=·false; |
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| 786 | ······<p·class="built-using"> | 786 | ······<p·class="built-using"> |
| 787 | ········Built·using | 787 | ········Built·using |
| 788 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 788 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 789 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 789 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 790 | ······</p> | 790 | ······</p> |
| 791 | <p>Copyright·©·1996-202 | 791 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 792 | ····</footer> | 792 | ····</footer> |
| 793 | ··</div> | 793 | ··</div> |
| 794 | </main> | 794 | </main> |
| 795 | </div> | 795 | </div> |
| 796 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 796 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 797 | ··<script> | 797 | ··<script> |
| 798 | ··let·initialized·=·false; | 798 | ··let·initialized·=·false; |
| Offset 739, 15 lines modified | Offset 739, 15 lines modified | ||
| 739 | ······<p·class="built-using"> | 739 | ······<p·class="built-using"> |
| 740 | ········Built·using | 740 | ········Built·using |
| 741 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 741 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 742 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 742 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 743 | ······</p> | 743 | ······</p> |
| 744 | <p>Copyright·©·1996-202 | 744 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 745 | ····</footer> | 745 | ····</footer> |
| 746 | ··</div> | 746 | ··</div> |
| 747 | </main> | 747 | </main> |
| 748 | </div> | 748 | </div> |
| 749 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 749 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 750 | ··<script> | 750 | ··<script> |
| 751 | ··let·initialized·=·false; | 751 | ··let·initialized·=·false; |
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| 1046 | ······<p·class="built-using"> | 1046 | ······<p·class="built-using"> |
| 1047 | ········Built·using | 1047 | ········Built·using |
| 1048 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1048 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1049 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1049 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1050 | ······</p> | 1050 | ······</p> |
| 1051 | <p>Copyright·©·1996-202 | 1051 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1052 | ····</footer> | 1052 | ····</footer> |
| 1053 | ··</div> | 1053 | ··</div> |
| 1054 | </main> | 1054 | </main> |
| 1055 | </div> | 1055 | </div> |
| 1056 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1056 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1057 | ··<script> | 1057 | ··<script> |
| 1058 | ··let·initialized·=·false; | 1058 | ··let·initialized·=·false; |
| Offset 3215, 16 lines modified | Offset 3215, 16 lines modified | ||
| 3215 | ······················AgentName·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:atom/0">atom</a>(), | 3215 | ······················AgentName·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:atom/0">atom</a>(), |
| 3216 | ······················Mib·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:string/0">string</a>(), | 3216 | ······················Mib·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:string/0">string</a>(), |
| 3217 | ······················Reason·::·already_loaded·|·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>().</pre> | 3217 | ······················Reason·::·already_loaded·|·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>().</pre> |
| 3218 | ······</div> | 3218 | ······</div> |
| 3219 | <p>Load·a·single·<code·class="inline">Mib</code>·into·an·agent.·The·<code·class="inline">MibName</code>·is·the·name·of·the·Mib, | 3219 | <p>Load·a·single·<code·class="inline">Mib</code>·into·an·agent.·The·<code·class="inline">MibName</code>·is·the·name·of·the·Mib, |
| 3220 | including·the·path·to·where·the·compiled·mib·is·found.·For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">··········</span><span·class="n">Dir</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">code</span><span·class="p">:</span><span·class="nf">priv_dir</span><span·class="p"·data-group-id=" | 3220 | including·the·path·to·where·the·compiled·mib·is·found.·For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">··········</span><span·class="n">Dir</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">code</span><span·class="p">:</span><span·class="nf">priv_dir</span><span·class="p"·data-group-id="2255788365-1">(</span><span·class="ss">my_app</span><span·class="p"·data-group-id="2255788365-1">)</span><span·class="w">·</span><span·class="o">++</span><span·class="w">·</span><span·class="s">"/mibs/"</span><span·class="p">,</span><span·class="w"> |
| 3221 | ··········</span><span·class="nc">snmpa</span><span·class="p">:</span><span·class="nf">load_mib</span><span·class="p"·data-group-id=" | 3221 | ··········</span><span·class="nc">snmpa</span><span·class="p">:</span><span·class="nf">load_mib</span><span·class="p"·data-group-id="2255788365-2">(</span><span·class="ss">snmp_master_agent</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Dir</span><span·class="w">·</span><span·class="o">++</span><span·class="w">·</span><span·class="s">"MY-MIB"</span><span[·...·truncated·by·diffoscope;·len:·36,·SHA:·a6ef0ff51a12b13db44daefc5589dbd5f645d67e6ec5553e086e78da4725a372·...·]-2">)</span><span·class="p">.</span></code></pre> |
| 3222 | ··</section> | 3222 | ··</section> |
| 3223 | </section> | 3223 | </section> |
| 3224 | <section·class="detail"·id="load_mibs/1"> | 3224 | <section·class="detail"·id="load_mibs/1"> |
| 3225 | ··<div·class="detail-header"> | 3225 | ··<div·class="detail-header"> |
| 3226 | ····<a·href="#load_mibs/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 3226 | ····<a·href="#load_mibs/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 3227 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 3227 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
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| 3326 | ·······················InternalReason·::·already_loaded·|·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>().</pre> | 3326 | ·······················InternalReason·::·already_loaded·|·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>().</pre> |
| 3327 | ······</div> | 3327 | ······</div> |
| 3328 | <p>Load·<code·class="inline">Mibs</code>·into·an·agent.·If·the·agent·cannot·load·all·MIBs·(the·default·value | 3328 | <p>Load·<code·class="inline">Mibs</code>·into·an·agent.·If·the·agent·cannot·load·all·MIBs·(the·default·value |
| 3329 | of·the·<code·class="inline">Force</code>·argument·is·<code·class="inline">false</code>),·it·will·indicate·where·loading·was·aborted. | 3329 | of·the·<code·class="inline">Force</code>·argument·is·<code·class="inline">false</code>),·it·will·indicate·where·loading·was·aborted. |
| 3330 | The·<code·class="inline">MibName</code>·is·the·name·of·the·Mib,·including·the·path·to·where·the·compiled | 3330 | The·<code·class="inline">MibName</code>·is·the·name·of·the·Mib,·including·the·path·to·where·the·compiled |
| 3331 | mib·is·found.·For·example,</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">··········</span><span·class="n">Dir</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">code</span><span·class="p">:</span><span·class="nf">priv_dir</span><span·class="p"·data-group-id=" | 3331 | mib·is·found.·For·example,</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">··········</span><span·class="n">Dir</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">code</span><span·class="p">:</span><span·class="nf">priv_dir</span><span·class="p"·data-group-id="7726265111-1">(</span><span·class="ss">my_app</span><span·class="p"·data-group-id="7726265111-1">)</span><span·class="w">·</span><span·class="o">++</span><span·class="w">·</span><span·class="s">"/mibs/"</span><span·class="p">,</span><span·class="w"> |
| 3332 | ··········</span><span·class="nc">snmpa</span><span·class="p">:</span><span·class="nf">load_mibs</span><span·class="p"·data-group-id=" | 3332 | ··········</span><span·class="nc">snmpa</span><span·class="p">:</span><span·class="nf">load_mibs</span><span·class="p"·data-group-id="7726265111-2">(</span><span·class="ss">snmp_master_agent</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="7726265111-3">[</span><span·class="n">Dir</span><span·class="w">·</span><span·class="o">++</span><span·class="w">·[·...·truncated·by·diffoscope;·len:·142,·SHA:·700b315faa791b34297d3c43c745c23ca8088c6432b1ccf97fe39b552d216d5f·...·]-2">)</span><span·class="p">.</span></code></pre><p>If·<code·class="inline">Force·=·true</code>·then·the·agent·will·continue·attempting·to·load·each·mib·even |
| 3333 | after·failing·to·load·a·previous·mib.·Use·with·care.</p> | 3333 | after·failing·to·load·a·previous·mib.·Use·with·care.</p> |
| 3334 | ··</section> | 3334 | ··</section> |
| 3335 | </section> | 3335 | </section> |
| 3336 | <section·class="detail"·id="log_to_io/1"> | 3336 | <section·class="detail"·id="log_to_io/1"> |
| 3337 | ··<div·class="detail-header"> | 3337 | ··<div·class="detail-header"> |
| 3338 | ····<a·href="#log_to_io/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 3338 | ····<a·href="#log_to_io/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
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| 4297 | ··········································Mod·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:module/0">module</a>(), | 4297 | ··········································Mod·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:module/0">module</a>(), |
| 4298 | ··········································Data·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>(), | 4298 | ··········································Data·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>(), |
| 4299 | ··········································Where·::·<a·href="#t:nfilter_position/0">nfilter_position</a>(), | 4299 | ··········································Where·::·<a·href="#t:nfilter_position/0">nfilter_position</a>(), |
| 4300 | ··········································Reason·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>().</pre> | 4300 | ··········································Reason·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>().</pre> |
| 4301 | ······</div> | 4301 | ······</div> |
| 4302 | <p>Accepted·type·specifications·are:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">spec</span><span·class="w">·</span><span·class="nf">register_notification_filter</span><span·class="p"·data-group-id=" | 4302 | <p>Accepted·type·specifications·are:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">spec</span><span·class="w">·</span><span·class="nf">register_notification_filter</span><span·class="p"·data-group-id="9994714716-1">(</span><span·class="n">Agent</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Id</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Mod</span><span·class="p">,</span><span·class="w">·</span><span·class[·...·truncated·by·diffoscope;·len:·443,·SHA:·849fd550533528a5cd33ec0175f4bc364e5ff5d0204cd88bbe14c2e32f9c519c·...·]-2">}</span><span·class="p">.</span><span·class="w"> |
| 4303 | </span><span·class="p">-</span><span·class="na">spec</span><span·class="w">·</span><span·class="nf">register_notification_filter</span><span·class="p"·data-group-id=" | 4303 | </span><span·class="p">-</span><span·class="na">spec</span><span·class="w">·</span><span·class="nf">register_notification_filter</span><span·class="p"·data-group-id="9994714716-3">(</span><span·class="n">Id</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Mod</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Data</span><span·class="p">,</span><span·class="w">·</span><span·class=[·...·truncated·by·diffoscope;·len:·443,·SHA:·d68b053a160b488d7fac1d9ba8b41467d49a70110aec7370be16ebc21f0732e1·...·]-4">}</span><span·class="p">.</span></code></pre> |
| 4304 | ··</section> | 4304 | ··</section> |
| 4305 | </section> | 4305 | </section> |
| 4306 | <section·class="detail"·id="register_notification_filter/5"> | 4306 | <section·class="detail"·id="register_notification_filter/5"> |
| 4307 | ··<div·class="detail-header"> | 4307 | ··<div·class="detail-header"> |
| 4308 | ····<a·href="#register_notification_filter/5"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 4308 | ····<a·href="#register_notification_filter/5"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 4309 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 4309 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
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| 4367 | ·······························SubAgent·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:pid/0">pid</a>(), | 4367 | ·······························SubAgent·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:pid/0">pid</a>(), |
| 4368 | ·······························Reason·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>().</pre> | 4368 | ·······························Reason·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>().</pre> |
| 4369 | ······</div> | 4369 | ······</div> |
| 4370 | <p>Registers·a·sub-agent·under·a·sub-tree·of·another·agent.</p><p>It·is·easy·to·make·mistakes·when·registering·sub-agents·and·this·activity·should | 4370 | <p>Registers·a·sub-agent·under·a·sub-tree·of·another·agent.</p><p>It·is·easy·to·make·mistakes·when·registering·sub-agents·and·this·activity·should |
| 4371 | be·done·carefully.·For·example,·a·strange·behaviour·would·result·from·the | 4371 | be·done·carefully.·For·example,·a·strange·behaviour·would·result·from·the |
| 4372 | following·configuration:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">snmp_agent</span><span·class="p">:</span><span·class="nf">register_subagent</span><span·class="p"·data-group-id="0090393897-1">(</span><span·class="n">MAPid</span><span·class="p">,</span><span·class="p"·data-group-id="0090393897-2">[</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">2</span><span·class="p">,</span><span·class="mi">3</span><span·class="p">,</span><span·class="mi">4</span><span·class="p"·data-group-id="0090393897-2">]</span><span·class="p">,</span><span·class="n">SA1</span><span·class="p"·data-group-id="0090393897-1">)</span><span·class="p">,</span><span·class="w"> | ||
| 4373 | </span><span·class="nc">snmp_agent</span><span·class="p">:</span><span·class="nf">register_subagent</span><span·class="p"·data-group-id=" | 4372 | following·configuration:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">snmp_agent</span><span·class="p">:</span><span·class="nf">register_subagent</span><span·class="p"·data-group-id="7723944063-1">(</span><span·class="n">MAPid</span>[·...·truncated·by·diffoscope;·len:·445,·SHA:·711c56db7a07e9fb82b79c3aa405ddb400c598aa951f233bb0f461a37fd11f4c·...·] |
| 4373 | </span><span·class="nc">snmp_agent</span><span·class="p">:</span><span·class="nf">register_subagent</span><span·class="p"·data-group-id="7723944063-3">(</span><span·class="n">SA1</span><span·class="p">,</span><span·class="p"·data-group-id="7723944063-4">[</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">2</span><span·class="p">,</span><span·class="mi">3</span><span·class="p"·data-group-id="7723944063-4">]</span><span·class="p">,</span><span·class="w">·</span><span·class="n">SA2</span><span·class="p"·data-group-id="7723944063-3">)</span><span·class="p">.</span></code></pre><p><code·class="inline">SA2</code>·will·not·get·requests·starting·with·object·identifier·<code·class="inline">[1,2,3]</code>·since | ||
| 4374 | <code·class="inline">SA1</code>·does·not.</p> | 4374 | <code·class="inline">SA1</code>·does·not.</p> |
| 4375 | ··</section> | 4375 | ··</section> |
| 4376 | </section> | 4376 | </section> |
| 4377 | <section·class="detail"·id="restart_set_worker/0"> | 4377 | <section·class="detail"·id="restart_set_worker/0"> |
| 4378 | ··<div·class="detail-header"> | 4378 | ··<div·class="detail-header"> |
| 4379 | ····<a·href="#restart_set_worker/0"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 4379 | ····<a·href="#restart_set_worker/0"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
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| 4793 | function·call·according·to·the·value·of·<code·class="inline">Recv</code>.</li></ul><p>If·<code·class="inline">Receiver</code>·has·the·value·<code·class="inline">{Tag,·Recv}</code>,·the·delivery·is·done·according·to | 4793 | function·call·according·to·the·value·of·<code·class="inline">Recv</code>.</li></ul><p>If·<code·class="inline">Receiver</code>·has·the·value·<code·class="inline">{Tag,·Recv}</code>,·the·delivery·is·done·according·to |
| 4794 | <code·class="inline">Recv</code>:</p><ul><li><p><code·class="inline">pid()·|·atom()</code>·-·The·info·will·be·delivered·in·the·following·messages:</p><ul><li><p><code·class="inline">{snmp_targets,·Tag,·Addresses}</code></p><p>This·inform·the·user·which·target·addresses·the·notification·was·sent·to.</p></li><li><p><code·class="inline">{snmp_notification,·Tag,·{got_response,·Address}}</code></p><p>This·informs·the·user·that·this·target·address·acknowledged·the | 4794 | <code·class="inline">Recv</code>:</p><ul><li><p><code·class="inline">pid()·|·atom()</code>·-·The·info·will·be·delivered·in·the·following·messages:</p><ul><li><p><code·class="inline">{snmp_targets,·Tag,·Addresses}</code></p><p>This·inform·the·user·which·target·addresses·the·notification·was·sent·to.</p></li><li><p><code·class="inline">{snmp_notification,·Tag,·{got_response,·Address}}</code></p><p>This·informs·the·user·that·this·target·address·acknowledged·the |
| 4795 | notification.</p></li><li><p><code·class="inline">{snmp_notification,·Tag,·{no_response,·Address}}</code></p><p>This·informs·the·user·that·this·target·address·did·not·acknowledge | 4795 | notification.</p></li><li><p><code·class="inline">{snmp_notification,·Tag,·{no_response,·Address}}</code></p><p>This·informs·the·user·that·this·target·address·did·not·acknowledge |
| 4796 | notification.</p></li></ul><p>The·notification·is·sent·as·an·Inform-Request·to·each·target·address·in | 4796 | notification.</p></li></ul><p>The·notification·is·sent·as·an·Inform-Request·to·each·target·address·in |
| 4797 | <code·class="inline">Addresses</code>·and·if·there·are·no·targets·for·which·an·Inform-Request·is·sent, | 4797 | <code·class="inline">Addresses</code>·and·if·there·are·no·targets·for·which·an·Inform-Request·is·sent, |
| 4798 | <code·class="inline">Addresses</code>·is·the·empty·list·<code·class="inline">[]</code>.</p><p>The·<code·class="inline">receiver</code>·will·first·be·sent·the·<code·class="inline">snmp_targets</code>·message,·and·then·for | 4798 | <code·class="inline">Addresses</code>·is·the·empty·list·<code·class="inline">[]</code>.</p><p>The·<code·class="inline">receiver</code>·will·first·be·sent·the·<code·class="inline">snmp_targets</code>·message,·and·then·for |
| 4799 | each·address·in·<code·class="inline">Addresses</code>·list,·one·of·the·two·<code·class="inline">snmp_notification</code>·messages.</p></li><li><p><code·class="inline">{Mod,·Func,·Args}</code>·-·The·info·will·be·delivered·via·the·function·call:</p><p><code·class="inline">Mod:Func([Msg·|·Args])</code></p><p>where·<code·class="inline">Msg</code>·has·the·same·content·and·purpose·as·the·messages·descrived·above.</p></li></ul><p><code·class="inline">Address</code>·is·a·management·target·address·and·<code·class="inline">Addresses</code>·is·a·list·of·management | 4799 | each·address·in·<code·class="inline">Addresses</code>·list,·one·of·the·two·<code·class="inline">snmp_notification</code>·messages.</p></li><li><p><code·class="inline">{Mod,·Func,·Args}</code>·-·The·info·will·be·delivered·via·the·function·call:</p><p><code·class="inline">Mod:Func([Msg·|·Args])</code></p><p>where·<code·class="inline">Msg</code>·has·the·same·content·and·purpose·as·the·messages·descrived·above.</p></li></ul><p><code·class="inline">Address</code>·is·a·management·target·address·and·<code·class="inline">Addresses</code>·is·a·list·of·management |
| 4800 | target·addresses.·They·are·defined·as·followes:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">········</span><span·class="n">Addresses</span><span·class="w">··</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 4800 | target·addresses.·They·are·defined·as·followes:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">········</span><span·class="n">Addresses</span><span·class="w">··</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="1670920948-1">[</span><span·class="nf">address</span><span·class="p"·data-group-id="1670920948-2">(</span><span·class="p"·data-group-id="1670920948-2">)</span><span·class="p"·data-group-id="1670920948-1">]</span><span·class="w"> |
| 4801 | ········</span><span·class="n">Address</span><span·class="w">····</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">address</span><span·class="p"·data-group-id=" | 4801 | ········</span><span·class="n">Address</span><span·class="w">····</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">address</span><span·class="p"·data-group-id="1670920948-3">(</span><span·class="p"·data-group-id="1670920948-3">)</span><span·class="w"> |
| 4802 | ········</span><span·class="nf">address</span><span·class="p"·data-group-id="0094466273-4">(</span><span·class="p"·data-group-id="0094466273-4">)</span><span·class="w">··</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">v1_address</span><span·class="p"·data-group-id="0094466273-5">(</span><span·class="p"·data-group-id="0094466273-5">)</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="nf">v3_address</span><span·class="p"·data-group-id="0094466273-6">(</span><span·class="p"·data-group-id="0094466273-6">)</span><span·class="w"> | ||
| 4803 | ········</span><span·class="nf">v1_address</span><span·class="p"·data-group-id="0094466273-7">(</span><span·class="p"·data-group-id="0094466273-7">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="0094466273-8">{</span><span·class="n">TDomain</span><span·class="p">,</span><span·class="w">·</span><span·class="n">TAddress</span><span·class="p"·data-group-id="0094466273-8">}</span><span·class="w"> | ||
| 4804 | ········</span><span·class="nf"> | 4802 | ········</span><span·class="nf">address</span><span·class="p"·data-group-id="1670920948-4">(</span><span·class="p"·data-group-id="1670920948-4">)</span><span·class="w">··</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">v1_address</span><span·class="p"·data-group-id[·...·truncated·by·diffoscope;·len:·282,·SHA:·285f1a0d42d2513d12c4a51c2e4c1f3a91d52c9abbf169f97056b44dacc33316·...·]</span><span·class="w"> |
| 4803 | ········</span><span·class="nf">v1_address</span><span·class="p"·data-group-id="1670920948-7">(</span><span·class="p"·data-group-id="1670920948-7">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="1670920948-8">{</span><span·class="n">TDomain</span><span·class="p">,</span><span·class="w">·</span><span·class="n">TAddress</span><span·class="p"·data-group-id="1670920948-8">}</span><span·class="w"> | ||
| 4804 | ········</span><span·class="nf">v3_address</span><span·class="p"·data-group-id="1670920948-9">(</span><span·class="p"·data-group-id="1670920948-9">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="1670920948-10">{</span><span·class="p"·data-group-id="1670920948-11">{</span><span·class="n">TDomain</span><span·class="p">,</span><span·class="w">·</span><span·class="n">TAddress</span><span·class="p"·data-group-id="1670920948-11">}</span><span·class="p">,</span><span·class="w">·</span><span·class="n">V3MsgData</span><span·class="p"·data-group-id="1670920948-10">}</span><span·class="w"> | ||
| 4805 | ········</span><span·class="n">TDomain</span><span·class="w">····</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">tdoamin</span><span·class="p"·data-group-id=" | 4805 | ········</span><span·class="n">TDomain</span><span·class="w">····</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">tdoamin</span><span·class="p"·data-group-id="1670920948-12">(</span><span·class="p"·data-group-id="1670920948-12">)</span><span·class="w"> |
| 4806 | ········</span><span·class="n">TAddress</span><span·class="w">···</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">taddress</span><span·class="p"·data-group-id=" | 4806 | ········</span><span·class="n">TAddress</span><span·class="w">···</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">taddress</span><span·class="p"·data-group-id="1670920948-13">(</span><span·class="p"·data-group-id="1670920948-13">)</span><span·class="w"> |
| 4807 | ········</span><span·class="nf">tdomain</span><span·class="p"·data-group-id=" | 4807 | ········</span><span·class="nf">tdomain</span><span·class="p"·data-group-id="1670920948-14">(</span><span·class="p"·data-group-id="1670920948-14">)</span><span·class="w">··</span><span·class="o">=</span><span·class="w">·</span><span·class="n">The</span><span·class="w">·</span><span·class="ss">oid</span><span·class="w">·</span><span·class="k">of</span><span·class="w">·</span><span·class="ss">snmpUDPDomain</span><span·class="w"> |
| 4808 | ·····················</span><span·class="n">This</span><span·class="w">·</span><span·class="ss">is</span><span·class="w">·</span><span·class="ss">the</span><span·class="w">·</span><span·class="ss">only</span><span·class="w">·</span><span·class="ss">supported</span><span·class="w">·</span><span·class="ss">transport</span><span·class="w">·</span><span·class="ss">domain</span><span·class="p">.</span><span·class="w"> | 4808 | ·····················</span><span·class="n">This</span><span·class="w">·</span><span·class="ss">is</span><span·class="w">·</span><span·class="ss">the</span><span·class="w">·</span><span·class="ss">only</span><span·class="w">·</span><span·class="ss">supported</span><span·class="w">·</span><span·class="ss">transport</span><span·class="w">·</span><span·class="ss">domain</span><span·class="p">.</span><span·class="w"> |
| 4809 | ········</span><span·class="nf">taddress</span><span·class="p"·data-group-id=" | 4809 | ········</span><span·class="nf">taddress</span><span·class="p"·data-group-id="1670920948-15">(</span><span·class="p"·data-group-id="1670920948-15">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="1670920948-16">[</span><span·class="n">A1</span><span·class="p">,</span><spa[·...·truncated·by·diffoscope;·len:·378,·SHA:·1106d307278663e2ba382e661c4741d70234a42535c86baea88f92d916abb793·...·]-16">]</span><span·class="w"> |
| 4810 | ·····················</span><span·class="n">The</span><span·class="w">·</span><span·class="mi">4</span><span·class="w">·</span><span·class="ss">first</span><span·class="w">·</span><span·class="ss">bytes</span><span·class="w">·</span><span·class="ss">makes</span><span·class="w">·</span><span·class="ss">up</span><span·class="w">·</span><span·class="ss">the</span><span·class="w">·</span><span·class="n">IP</span><span·class="o">-</span><span·class="ss">address</span><span·class="w">·</span><span·class="ow">and</span><span·class="w">·</span><span·class="ss">the</span><span·class="w">·</span><span·class="ss">last</span><span·class="w">·</span><span·class="mi">2</span><span·class="p">,</span><span·class="w"> | 4810 | ·····················</span><span·class="n">The</span><span·class="w">·</span><span·class="mi">4</span><span·class="w">·</span><span·class="ss">first</span><span·class="w">·</span><span·class="ss">bytes</span><span·class="w">·</span><span·class="ss">makes</span><span·class="w">·</span><span·class="ss">up</span><span·class="w">·</span><span·class="ss">the</span><span·class="w">·</span><span·class="n">IP</span><span·class="o">-</span><span·class="ss">address</span><span·class="w">·</span><span·class="ow">and</span><span·class="w">·</span><span·class="ss">the</span><span·class="w">·</span><span·class="ss">last</span><span·class="w">·</span><span·class="mi">2</span><span·class="p">,</span><span·class="w"> |
| 4811 | ·····················</span><span·class="ss">the</span><span·class="w">·</span><span·class="n">UDP</span><span·class="o">-</span><span·class="ss">port</span><span·class="w">·</span><span·class="ss">number</span><span·class="p">.</span><span·class="w"> | 4811 | ·····················</span><span·class="ss">the</span><span·class="w">·</span><span·class="n">UDP</span><span·class="o">-</span><span·class="ss">port</span><span·class="w">·</span><span·class="ss">number</span><span·class="p">.</span><span·class="w"> |
| 4812 | ········</span><span·class="n">V3MsgData</span><span·class="w">··</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">v3_msg_data</span><span·class="p"·data-group-id=" | 4812 | ········</span><span·class="n">V3MsgData</span><span·class="w">··</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">v3_msg_data</span><span·class="p"·data-group-id="1670920948-17">(</span><span·class="p"·data-group-id="1670920948-17">)</span><span·class="w"> |
| 4813 | ········</span><span·class="nf">v3_msg_data</span><span·class="p"·data-group-id=" | 4813 | ········</span><span·class="nf">v3_msg_data</span><span·class="p"·data-group-id="1670920948-18">(</span><span·class="p"·data-group-id="1670920948-18">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">term</span><span·class="p"·data-group-id="1670920948-19">(</span><span·class="p"·data-grou[·...·truncated·by·diffoscope;·len:·16,·SHA:·77e7a33a10658f78ed211e5131b6d9f5444e16ddea62ab763ba250324a0194f7·...·]-19">)</span></code></pre><p>If·<code·class="inline">Receiver</code>·is·a·<a·href="#t:notification_delivery_info/0"><code·class="inline">notification_delivery_info/0</code></a>·record,·then·the·information |
| 4814 | about·the·notification·delivery·will·be·delivered·to·the·<code·class="inline">receiver</code>·via·the | 4814 | about·the·notification·delivery·will·be·delivered·to·the·<code·class="inline">receiver</code>·via·the |
| 4815 | callback·functions·defined·by·the·<a·href="snmpa_notification_delivery_info_receiver.html"><code·class="inline">snmpa_notification_delivery_info_receiver</code></a> | 4815 | callback·functions·defined·by·the·<a·href="snmpa_notification_delivery_info_receiver.html"><code·class="inline">snmpa_notification_delivery_info_receiver</code></a> |
| 4816 | behaviour·according·to·the·content·of·the·<a·href="#t:notification_delivery_info/0"><code·class="inline">notification_delivery_info/0</code></a> | 4816 | behaviour·according·to·the·content·of·the·<a·href="#t:notification_delivery_info/0"><code·class="inline">notification_delivery_info/0</code></a> |
| 4817 | record.</p><p>The·optional·argument·<code·class="inline">Varbinds</code>·defines·values·for·the·objects·in·the | 4817 | record.</p><p>The·optional·argument·<code·class="inline">Varbinds</code>·defines·values·for·the·objects·in·the |
| 4818 | notification.·If·no·value·is·given·for·an·object,·the·<code·class="inline">Agent</code>·performs·a | 4818 | notification.·If·no·value·is·given·for·an·object,·the·<code·class="inline">Agent</code>·performs·a |
| 4819 | get-operation·to·retrieve·the·value.</p><p><code·class="inline">Varbinds</code>·is·a·list·of·<code·class="inline">Varbind</code>,·where·each·<code·class="inline">Varbind</code>·is·one·of:</p><ul><li><code·class="inline">{Variable,·Value}</code>,·where·<code·class="inline">Variable</code>·is·the·symbolic·name·of·a·scalar | 4819 | get-operation·to·retrieve·the·value.</p><p><code·class="inline">Varbinds</code>·is·a·list·of·<code·class="inline">Varbind</code>,·where·each·<code·class="inline">Varbind</code>·is·one·of:</p><ul><li><code·class="inline">{Variable,·Value}</code>,·where·<code·class="inline">Variable</code>·is·the·symbolic·name·of·a·scalar |
| 4820 | variable·referred·to·in·the·notification·specification.</li><li><code·class="inline">{Column,·RowIndex,·Value}</code>,·where·<code·class="inline">Column</code>·is·the·symbolic·name·of·a·column | 4820 | variable·referred·to·in·the·notification·specification.</li><li><code·class="inline">{Column,·RowIndex,·Value}</code>,·where·<code·class="inline">Column</code>·is·the·symbolic·name·of·a·column |
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| 5784 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 5784 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 5785 | ······</p> | 5785 | ······</p> |
| 5786 | <p>Copyright·©·1996-202 | 5786 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 5787 | ····</footer> | 5787 | ····</footer> |
| 5788 | ··</div> | 5788 | ··</div> |
| 5789 | </main> | 5789 | </main> |
| 5790 | </div> | 5790 | </div> |
| 5791 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 5791 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 5792 | ··<script> | 5792 | ··<script> |
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| 3630 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 3630 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 3631 | ······</p> | 3631 | ······</p> |
| 3632 | <p>Copyright·©·1996-202 | 3632 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 3633 | ····</footer> | 3633 | ····</footer> |
| 3634 | ··</div> | 3634 | ··</div> |
| 3635 | </main> | 3635 | </main> |
| 3636 | </div> | 3636 | </div> |
| 3637 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 3637 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 3638 | ··<script> | 3638 | ··<script> |
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| 242 | ······</p> | 242 | ······</p> |
| 243 | <p>Copyright·©·1996-202 | 243 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 244 | ····</footer> | 244 | ····</footer> |
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| 246 | </main> | 246 | </main> |
| 247 | </div> | 247 | </div> |
| 248 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 248 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 249 | ··<script> | 249 | ··<script> |
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| 265 | ······</p> | 265 | ······</p> |
| 266 | <p>Copyright·©·1996-202 | 266 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 267 | ····</footer> | 267 | ····</footer> |
| 268 | ··</div> | 268 | ··</div> |
| 269 | </main> | 269 | </main> |
| 270 | </div> | 270 | </div> |
| 271 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 271 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 272 | ··<script> | 272 | ··<script> |
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| 265 | ······</p> | 265 | ······</p> |
| 266 | <p>Copyright·©·1996-202 | 266 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 267 | ····</footer> | 267 | ····</footer> |
| 268 | ··</div> | 268 | ··</div> |
| 269 | </main> | 269 | </main> |
| 270 | </div> | 270 | </div> |
| 271 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 271 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 272 | ······</p> | 272 | ······</p> |
| 273 | <p>Copyright·©·1996-202 | 273 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 274 | ····</footer> | 274 | ····</footer> |
| 275 | ··</div> | 275 | ··</div> |
| 276 | </main> | 276 | </main> |
| 277 | </div> | 277 | </div> |
| 278 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 278 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 262 | <p>Copyright·©·1996-202 | 262 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 714 | <p>Copyright·©·1996-202 | 714 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 1081 | <p>Copyright·©·1996-202 | 1081 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 1083 | ··</div> | 1083 | ··</div> |
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| 816 | <p>Copyright·©·1996-202 | 816 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 817 | ····</footer> | 817 | ····</footer> |
| 818 | ··</div> | 818 | ··</div> |
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| 984 | <p>Copyright·©·1996-202 | 984 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 985 | ····</footer> | 985 | ····</footer> |
| 986 | ··</div> | 986 | ··</div> |
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| 479 | <p>Copyright·©·1996-202 | 479 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 480 | ····</footer> | 480 | ····</footer> |
| 481 | ··</div> | 481 | ··</div> |
| 482 | </main> | 482 | </main> |
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| 490 | ······</p> | 490 | ······</p> |
| 491 | <p>Copyright·©·1996-202 | 491 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 492 | ····</footer> | 492 | ····</footer> |
| 493 | ··</div> | 493 | ··</div> |
| 494 | </main> | 494 | </main> |
| 495 | </div> | 495 | </div> |
| 496 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 496 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 414 | ······</p> | 414 | ······</p> |
| 415 | <p>Copyright·©·1996-202 | 415 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 416 | ····</footer> | 416 | ····</footer> |
| 417 | ··</div> | 417 | ··</div> |
| 418 | </main> | 418 | </main> |
| 419 | </div> | 419 | </div> |
| 420 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 420 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 323 | ······</p> | 323 | ······</p> |
| 324 | <p>Copyright·©·1996-202 | 324 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 325 | ····</footer> | 325 | ····</footer> |
| 326 | ··</div> | 326 | ··</div> |
| 327 | </main> | 327 | </main> |
| 328 | </div> | 328 | </div> |
| 329 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 329 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 364 | ······</p> | 364 | ······</p> |
| 365 | <p>Copyright·©·1996-202 | 365 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 366 | ····</footer> | 366 | ····</footer> |
| 367 | ··</div> | 367 | ··</div> |
| 368 | </main> | 368 | </main> |
| 369 | </div> | 369 | </div> |
| 370 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 370 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 404 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 404 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 405 | ······</p> | 405 | ······</p> |
| 406 | <p>Copyright·©·1996-202 | 406 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 407 | ····</footer> | 407 | ····</footer> |
| 408 | ··</div> | 408 | ··</div> |
| 409 | </main> | 409 | </main> |
| 410 | </div> | 410 | </div> |
| 411 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 411 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 127 | <p>SNMP·MIB·compiler·frontend</p><h2·id="synopsis"·class="section-heading"> | 127 | <p>SNMP·MIB·compiler·frontend</p><h2·id="synopsis"·class="section-heading"> |
| 128 | ··<a·href="#synopsis"·class="hover-link"> | 128 | ··<a·href="#synopsis"·class="hover-link"> |
| 129 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 129 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 130 | ··</a> | 130 | ··</a> |
| 131 | ··<span·class="text">Synopsis</span> | 131 | ··<span·class="text">Synopsis</span> |
| 132 | </h2> | 132 | </h2> |
| 133 | <pre><code·class="makeup·erlang"·translate="no"><span·class="ss">snmpc</span><span·class="w">·</span><span·class="p"·data-group-id=" | 133 | <pre><code·class="makeup·erlang"·translate="no"><span·class="ss">snmpc</span><span·class="w">·</span><span·class="p"·data-group-id="0620456054-1">[</span><span·class="ss">options</span><span·class="p"·data-group-id="0620456054-1">]</span><span·class="w">·</span><span·class="ss">file</span><span·class="p">.</span><span·class="ss">mib</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">file</span><span·class="p">.</span><span·class="ss">bin</span></code></pre><h2·id="description"·class="section-heading"> |
| 134 | ··<a·href="#description"·class="hover-link"> | 134 | ··<a·href="#description"·class="hover-link"> |
| 135 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 135 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 136 | ··</a> | 136 | ··</a> |
| 137 | ··<span·class="text">Description</span> | 137 | ··<span·class="text">Description</span> |
| 138 | </h2> | 138 | </h2> |
| 139 | <p>The·<code·class="inline">snmpc</code>·program·provides·a·way·to·run·the·SNMP·MIB·compiler·of·the·Erlang | 139 | <p>The·<code·class="inline">snmpc</code>·program·provides·a·way·to·run·the·SNMP·MIB·compiler·of·the·Erlang |
| 140 | system.</p><p><code·class="inline">snmpc</code>·compiles·an·SNMP·MIB·file.·See·<a·href="snmpc.html#compile/1">compile/1,2</a>·for·more | 140 | system.</p><p><code·class="inline">snmpc</code>·compiles·an·SNMP·MIB·file.·See·<a·href="snmpc.html#compile/1">compile/1,2</a>·for·more |
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| 213 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 213 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 214 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 214 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 215 | ······</p> | 215 | ······</p> |
| 216 | <p>Copyright·©·1996-202 | 216 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 217 | ····</footer> | 217 | ····</footer> |
| 218 | ··</div> | 218 | ··</div> |
| 219 | </main> | 219 | </main> |
| 220 | </div> | 220 | </div> |
| 221 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 221 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 222 | ··<script> | 222 | ··<script> |
| 223 | ··let·initialized·=·false; | 223 | ··let·initialized·=·false; |
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| 1944 | ······<div·class="specs"> | 1944 | ······<div·class="specs"> |
| 1945 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·load_mib(MibName)·->·ok·|·{error,·Reason}·when·MibName·::·<a·href="snmp.html#t:mib_name/0">snmp:mib_name</a>(),·Reason·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>().</pre> | 1945 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·load_mib(MibName)·->·ok·|·{error,·Reason}·when·MibName·::·<a·href="snmp.html#t:mib_name/0">snmp:mib_name</a>(),·Reason·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>().</pre> |
| 1946 | ······</div> | 1946 | ······</div> |
| 1947 | <p>Load·a·<code·class="inline">Mib</code>·into·the·manager.·The·<code·class="inline">MibName</code>·is·the·name·of·the·Mib,·including | 1947 | <p>Load·a·<code·class="inline">Mib</code>·into·the·manager.·The·<code·class="inline">MibName</code>·is·the·name·of·the·Mib,·including |
| 1948 | the·path·to·where·the·compiled·mib·is·found.·For·example,</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">··········</span><span·class="n">Dir</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">code</span><span·class="p">:</span><span·class="nf">priv_dir</span><span·class="p"·data-group-id=" | 1948 | the·path·to·where·the·compiled·mib·is·found.·For·example,</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">··········</span><span·class="n">Dir</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">code</span><span·class="p">:</span><span·class="nf">priv_dir</span><span·class="p"·data-group-id="1923962161-1">(</span><span·class="ss">my_app</span><span·class="p"·data-group-id="1923962161-1">)</span><span·class="w">·</span><span·class="o">++</span><span·class="w">·</span><span·class="s">"/mibs/"</span><span·class="p">,</span><span·class="w"> |
| 1949 | ··········</span><span·class="nc">snmpm</span><span·class="p">:</span><span·class="nf">load_mib</span><span·class="p"·data-group-id=" | 1949 | ··········</span><span·class="nc">snmpm</span><span·class="p">:</span><span·class="nf">load_mib</span><span·class="p"·data-group-id="1923962161-2">(</span><span·class="n">Dir</span><span·class="w">·</span><span·class="o">++</span><span·class="w">·</span><span·class="s">"MY-MIB"</span><span·class="p"·data-group-id="1923962161-2">)</span><span·class="p">.</span></code></pre> |
| 1950 | ··</section> | 1950 | ··</section> |
| 1951 | </section> | 1951 | </section> |
| 1952 | <section·class="detail"·id="log_to_io/1"> | 1952 | <section·class="detail"·id="log_to_io/1"> |
| 1953 | ··<div·class="detail-header"> | 1953 | ··<div·class="detail-header"> |
| 1954 | ····<a·href="#log_to_io/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 1954 | ····<a·href="#log_to_io/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 1955 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 1955 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 3450, 16 lines modified | Offset 3450, 16 lines modified | ||
| 3450 | ······<div·class="specs"> | 3450 | ······<div·class="specs"> |
| 3451 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·unload_mib(MibName)·->·ok·|·{error,·Reason}·when·MibName·::·<a·href="snmp.html#t:mib_name/0">snmp:mib_name</a>(),·Reason·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>().</pre> | 3451 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·unload_mib(MibName)·->·ok·|·{error,·Reason}·when·MibName·::·<a·href="snmp.html#t:mib_name/0">snmp:mib_name</a>(),·Reason·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>().</pre> |
| 3452 | ······</div> | 3452 | ······</div> |
| 3453 | <p>Unload·a·<code·class="inline">Mib</code>·from·the·manager.·The·<code·class="inline">MibName</code>·is·the·name·of·the·Mib,·including | 3453 | <p>Unload·a·<code·class="inline">Mib</code>·from·the·manager.·The·<code·class="inline">MibName</code>·is·the·name·of·the·Mib,·including |
| 3454 | the·path·to·where·the·compiled·mib·is·found.·For·example,</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">··········</span><span·class="n">Dir</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">code</span><span·class="p">:</span><span·class="nf">priv_dir</span><span·class="p"·data-group-id=" | 3454 | the·path·to·where·the·compiled·mib·is·found.·For·example,</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">··········</span><span·class="n">Dir</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">code</span><span·class="p">:</span><span·class="nf">priv_dir</span><span·class="p"·data-group-id="3302041879-1">(</span><span·class="ss">my_app</span><span·class="p"·data-group-id="3302041879-1">)</span><span·class="w">·</span><span·class="o">++</span><span·class="w">·</span><span·class="s">"/mibs/"</span><span·class="p">,</span><span·class="w"> |
| 3455 | ··········</span><span·class="nc">snmpm</span><span·class="p">:</span><span·class="nf">unload_mib</span><span·class="p"·data-group-id=" | 3455 | ··········</span><span·class="nc">snmpm</span><span·class="p">:</span><span·class="nf">unload_mib</span><span·class="p"·data-group-id="3302041879-2">(</span><span·class="n">Dir</span><span·class="w">·</span><span·class="o">++</span><span·class="w">·</span><span·class="s">"MY-MIB"</span><span·class="p"·data-group-id="3302041879-2">)</span><span·class="p">.</span></code></pre> |
| 3456 | ··</section> | 3456 | ··</section> |
| 3457 | </section> | 3457 | </section> |
| 3458 | <section·class="detail"·id="unregister_agent/2"> | 3458 | <section·class="detail"·id="unregister_agent/2"> |
| 3459 | ··<div·class="detail-header"> | 3459 | ··<div·class="detail-header"> |
| 3460 | ····<a·href="#unregister_agent/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 3460 | ····<a·href="#unregister_agent/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 3461 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 3461 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
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| 3891 | ······<p·class="built-using"> | 3891 | ······<p·class="built-using"> |
| 3892 | ········Built·using | 3892 | ········Built·using |
| 3893 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 3893 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 3894 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 3894 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 3895 | ······</p> | 3895 | ······</p> |
| 3896 | <p>Copyright·©·1996-202 | 3896 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 3897 | ····</footer> | 3897 | ····</footer> |
| 3898 | ··</div> | 3898 | ··</div> |
| 3899 | </main> | 3899 | </main> |
| 3900 | </div> | 3900 | </div> |
| 3901 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 3901 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 3902 | ··<script> | 3902 | ··<script> |
| 3903 | ··let·initialized·=·false; | 3903 | ··let·initialized·=·false; |
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| 1308 | ······<p·class="built-using"> | 1308 | ······<p·class="built-using"> |
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| 1310 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1310 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1311 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1311 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1312 | ······</p> | 1312 | ······</p> |
| 1313 | <p>Copyright·©·1996-202 | 1313 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1314 | ····</footer> | 1314 | ····</footer> |
| 1315 | ··</div> | 1315 | ··</div> |
| 1316 | </main> | 1316 | </main> |
| 1317 | </div> | 1317 | </div> |
| 1318 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1318 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1319 | ··<script> | 1319 | ··<script> |
| 1320 | ··let·initialized·=·false; | 1320 | ··let·initialized·=·false; |
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| 623 | ······<p·class="built-using"> | 623 | ······<p·class="built-using"> |
| 624 | ········Built·using | 624 | ········Built·using |
| 625 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 625 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 626 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 626 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 627 | ······</p> | 627 | ······</p> |
| 628 | <p>Copyright·©·1996-202 | 628 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 629 | ····</footer> | 629 | ····</footer> |
| 630 | ··</div> | 630 | ··</div> |
| 631 | </main> | 631 | </main> |
| 632 | </div> | 632 | </div> |
| 633 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 633 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 634 | ··<script> | 634 | ··<script> |
| 635 | ··let·initialized·=·false; | 635 | ··let·initialized·=·false; |
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| 552 | ······<p·class="built-using"> | 552 | ······<p·class="built-using"> |
| 553 | ········Built·using | 553 | ········Built·using |
| 554 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 554 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 555 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 555 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 556 | ······</p> | 556 | ······</p> |
| 557 | <p>Copyright·©·1996-202 | 557 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 558 | ····</footer> | 558 | ····</footer> |
| 559 | ··</div> | 559 | ··</div> |
| 560 | </main> | 560 | </main> |
| 561 | </div> | 561 | </div> |
| 562 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 562 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 563 | ··<script> | 563 | ··<script> |
| 564 | ··let·initialized·=·false; | 564 | ··let·initialized·=·false; |
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| 478 | ······<p·class="built-using"> | 478 | ······<p·class="built-using"> |
| 479 | ········Built·using | 479 | ········Built·using |
| 480 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 480 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 481 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 481 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 482 | ······</p> | 482 | ······</p> |
| 483 | <p>Copyright·©·1996-202 | 483 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 484 | ····</footer> | 484 | ····</footer> |
| 485 | ··</div> | 485 | ··</div> |
| 486 | </main> | 486 | </main> |
| 487 | </div> | 487 | </div> |
| 488 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 488 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 489 | ··<script> | 489 | ··<script> |
| 490 | ··let·initialized·=·false; | 490 | ··let·initialized·=·false; |
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| 693 | ······<p·class="built-using"> | 693 | ······<p·class="built-using"> |
| 694 | ········Built·using | 694 | ········Built·using |
| 695 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 695 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 696 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 696 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 697 | ······</p> | 697 | ······</p> |
| 698 | <p>Copyright·©·1996-202 | 698 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 699 | ····</footer> | 699 | ····</footer> |
| 700 | ··</div> | 700 | ··</div> |
| 701 | </main> | 701 | </main> |
| 702 | </div> | 702 | </div> |
| 703 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 703 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 704 | ··<script> | 704 | ··<script> |
| 705 | ··let·initialized·=·false; | 705 | ··let·initialized·=·false; |
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| 143 | ······<p·class="built-using"> | 143 | ······<p·class="built-using"> |
| 144 | ········Built·using | 144 | ········Built·using |
| 145 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 145 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 146 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 146 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 147 | ······</p> | 147 | ······</p> |
| 148 | <p>Copyright·©·1996-202 | 148 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 149 | ····</footer> | 149 | ····</footer> |
| 150 | ··</div> | 150 | ··</div> |
| 151 | </main> | 151 | </main> |
| 152 | </div> | 152 | </div> |
| 153 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 153 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 154 | ··<script> | 154 | ··<script> |
| 155 | ··let·initialized·=·false; | 155 | ··let·initialized·=·false; |
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| 274 | ········Built·using | 274 | ········Built·using |
| 275 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 275 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 276 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 276 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 277 | ······</p> | 277 | ······</p> |
| 278 | <p>Copyright·©·1996-202 | 278 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 279 | ····</footer> | 279 | ····</footer> |
| 280 | ··</div> | 280 | ··</div> |
| 281 | </main> | 281 | </main> |
| 282 | </div> | 282 | </div> |
| 283 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 283 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 284 | ··<script> | 284 | ··<script> |
| 285 | ··let·initialized·=·false; | 285 | ··let·initialized·=·false; |
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| 138 | the·<a·href="configure_algos.html">Configuring·algorithms·in·SSH</a>·chapter.</p><h2·id="options-configuration"·class="section-heading"> | 138 | the·<a·href="configure_algos.html">Configuring·algorithms·in·SSH</a>·chapter.</p><h2·id="options-configuration"·class="section-heading"> |
| 139 | ··<a·href="#options-configuration"·class="hover-link"> | 139 | ··<a·href="#options-configuration"·class="hover-link"> |
| 140 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 140 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 141 | ··</a> | 141 | ··</a> |
| 142 | ··<span·class="text">Options·configuration</span> | 142 | ··<span·class="text">Options·configuration</span> |
| 143 | </h2> | 143 | </h2> |
| 144 | <p>There·are·from·OTP-23.0·two·main·ways·to·set·an·option:</p><ul><li><p>Like·before,·in·the·<code·class="inline">Options</code>·parameter·in·the·Erlang·code·in·a·call·to·for | 144 | <p>There·are·from·OTP-23.0·two·main·ways·to·set·an·option:</p><ul><li><p>Like·before,·in·the·<code·class="inline">Options</code>·parameter·in·the·Erlang·code·in·a·call·to·for |
| 145 | example·<a·href="ssh.html#daemon/3"><code·class="inline">ssh:daemon/3</code></a>·or·<a·href="ssh.html#connect/3"><code·class="inline">ssh:connect/3</code></a>·or·any·of·their·variants.·Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">ssh</span><span·class="p">:</span><span·class="nf">connect</span><span·class="p"·data-group-id=" | 145 | example·<a·href="ssh.html#daemon/3"><code·class="inline">ssh:daemon/3</code></a>·or·<a·href="ssh.html#connect/3"><code·class="inline">ssh:connect/3</code></a>·or·any·of·their·variants.·Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">ssh</span><span·class="p">:</span><span·class="nf">connect</span><span·class="p"·data-group-id="1211460417-1">(</span><span·class="mi">22</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1211460417-2">[</span><span·class="p"·data-group-id="1211460417-3">{</span><span·class="ss">user</span><span·class="p">,</span><s[·...·truncated·by·diffoscope;·len:·623,·SHA:·42bfff344f45526bb30cd77a64d51d2777615f8ab3e5004210ad56849783c2f9·...·]-1">{</span><span·class="ss">application</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">ssh</span><span·class="p">,</span><span·class="w"> |
| 146 | ·</span><span·class="p"·data-group-id=" | 146 | ·</span><span·class="p"·data-group-id="8578925973-2">[</span><span·class="p"·data-group-id="8578925973-3">{</span><span·class="ss">description</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"SSH-2·for·Erlang/OTP"</span><span·class="p"·data-group-id="8578925973-3">}</span><span·class="p">,</span><span·class="w"> |
| 147 | ··</span><span·class="p"·data-group-id=" | 147 | ··</span><span·class="p"·data-group-id="8578925973-4">{</span><span·class="ss">vsn</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"4.9"</span><span·class="p"·data-group-id="8578925973-4">}</span><span·class="p">,</span><span·class="w"> |
| 148 | ··</span><span·class="p"·data-group-id=" | 148 | ··</span><span·class="p"·data-group-id="8578925973-5">{</span><span·class="ss">modules</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8578925973-6">[</span><span·class="ss">ssh</span><span·class="p">,</span><span·class="w"> |
| 149 | ········</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> | 149 | ········</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> |
| 150 | ·········</span><span·class="ss">ssh_xfer</span><span·class="p"·data-group-id=" | 150 | ·········</span><span·class="ss">ssh_xfer</span><span·class="p"·data-group-id="8578925973-6">]</span><span·class="p"·data-group-id="8578925973-5">}</span><span·class="p">,</span><span·class="w"> |
| 151 | ··</span><span·class="p"·data-group-id=" | 151 | ··</span><span·class="p"·data-group-id="8578925973-7">{</span><span·class="ss">registered</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8578925973-8">[</span><span·class="p"·data-group-id="8578925973-8">]</span><span·class="p"·data-group-id="8578925973-7">}</span><span·class="p">,</span><span·class="w"> |
| 152 | ··</span><span·class="p"·data-group-id=" | 152 | ··</span><span·class="p"·data-group-id="8578925973-9">{</span><span·class="ss">applications</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8578925973-10">[</span><span·class="ss">kernel</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">s[·...·truncated·by·diffoscope;·len:·267,·SHA:·6c79f6d872e241f0e70d6a2e87242dc314a4e9cbb7272f15f8d5ada1190a30be·...·]-9">}</span><span·class="p">,</span><span·class="w"> |
| 153 | ··</span><span·class="p"·data-group-id=" | 153 | ··</span><span·class="p"·data-group-id="8578925973-11">{</span><span·class="ss">env</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8578925973-12">[</span><span·class="p"·data-group-id="8578925973-13">{</span><span·class="ss">user</span><span·class="p">,</spa[·...·truncated·by·diffoscope;·len:·129,·SHA:·bfd5386da2f2309af8670046200795916291913a575f75a34724b3374820bcb1·...·]-13">}</span><span·class="p">,</span><span·class="w">·</span><span·class="c1">%·<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<·HERE</span><span·class="w"> |
| 154 | ··</span><span·class="p"·data-group-id=" | 154 | ··</span><span·class="p"·data-group-id="8578925973-14">{</span><span·class="ss">mod</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8578925973-15">{</span><span·class="ss">ssh_app</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-grou[·...·truncated·by·diffoscope;·len:·178,·SHA:·5947bf61a00d1c0a2320bec5dc616d9c35979a70c67b2d386a3cc057e4eb2d6f·...·]-14">}</span><span·class="p">,</span><span·class="w"> |
| 155 | ·······</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span></code></pre></li><li><p>In·a·.config·file:</p><pre><code·class="text">erl·-config·ex1</code></pre><p>where·<code·class="inline">ex1.config</code>·contains:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 155 | ·······</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span></code></pre></li><li><p>In·a·.config·file:</p><pre><code·class="text">erl·-config·ex1</code></pre><p>where·<code·class="inline">ex1.config</code>·contains:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="3330639484-1">[</span><span·class="w"> |
| 156 | </span><span·class="p"·data-group-id=" | 156 | </span><span·class="p"·data-group-id="3330639484-2">{</span><span·class="ss">ssh</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3330639484-3">[</span><span·class="p"·data-group-id="3330639484-4">{</span><span·class="ss">user</span><span·class="p">,</span><[·...·truncated·by·diffoscope;·len:·208,·SHA:·018e4954142d745621d5d17055b811f1fe8fad27d4912cc135b4bfb1d8ab4629·...·]-2">}</span><span·class="w"> |
| 157 | </span><span·class="p"·data-group-id=" | 157 | </span><span·class="p"·data-group-id="3330639484-1">]</span><span·class="p">.</span></code></pre></li></ul><p>If·the·option·is·intended·only·for·a·server·or·for·a·client,·it·may·be·set·in |
| 158 | this·way:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 158 | this·way:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="2263557714-1">[</span><span·class="w"> |
| 159 | </span><span·class="p"·data-group-id=" | 159 | </span><span·class="p"·data-group-id="2263557714-2">{</span><span·class="ss">ssh</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2263557714-3">[</span><span·class="p"·data-group-id="2263557714-4">{</span><span·class="ss">server_options</span><span·class="p"[·...·truncated·by·diffoscope;·len:·376,·SHA:·13ace7d1199da8ccaddf9773c348adbdbabf2ee9282a4f539122fe43962cf841·...·]-4">}</span><span·class="p">,</span><span·class="w"> |
| 160 | ·······</span><span·class="p"·data-group-id=" | 160 | ·······</span><span·class="p"·data-group-id="2263557714-7">{</span><span·class="ss">client_options</span><span·class="p">,</span><span·class="p"·data-group-id="2263557714-8">[</span><span·class="p"·data-group-id="2263557714-9">{</span><span·class="ss">user</span><span·class="p">,</span><span·class="w[·...·truncated·by·diffoscope;·len:·195,·SHA:·d91deb31f5df62b2497b9b67636861dd444765e08a683af75327175bb4b609be·...·]-7">}</span><span·class="w"> |
| 161 | </span><span·class="p"·data-group-id=" | 161 | </span><span·class="p"·data-group-id="2263557714-3">]</span><span·class="p">.</span></code></pre><p>A·server·(daemon)·will·use·the·user·name·<code·class="inline">foo</code>,·and·a·client·will·use·the·name |
| 162 | <code·class="inline">bar</code>.</p></li></ul><h2·id="precedence"·class="section-heading"> | 162 | <code·class="inline">bar</code>.</p></li></ul><h2·id="precedence"·class="section-heading"> |
| 163 | ··<a·href="#precedence"·class="hover-link"> | 163 | ··<a·href="#precedence"·class="hover-link"> |
| 164 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 164 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 165 | ··</a> | 165 | ··</a> |
| 166 | ··<span·class="text">Precedence</span> | 166 | ··<span·class="text">Precedence</span> |
| 167 | </h2> | 167 | </h2> |
| 168 | <p>If·an·option·is·set·in·more·than·one·way,·what·happens?</p><p>There·is·an·ordering,·which·is:</p><ul><li>Level·0:·Hard-coded·default·values·in·the·OTP·SSH·source·code</li><li>Level·1:·<a·href="../../../../lib/kernel-10.3/doc/html/config.html">OTP·Configuration·Parameters</a></li><li>Level·2:·Options·in·the·<a·href="../../../../lib/kernel-10.3/doc/html/config.html">OTP·Configuration·Parameters</a> | 168 | <p>If·an·option·is·set·in·more·than·one·way,·what·happens?</p><p>There·is·an·ordering,·which·is:</p><ul><li>Level·0:·Hard-coded·default·values·in·the·OTP·SSH·source·code</li><li>Level·1:·<a·href="../../../../lib/kernel-10.3/doc/html/config.html">OTP·Configuration·Parameters</a></li><li>Level·2:·Options·in·the·<a·href="../../../../lib/kernel-10.3/doc/html/config.html">OTP·Configuration·Parameters</a> |
| Offset 225, 96 lines modified | Offset 225, 96 lines modified | ||
| 225 | ··························'aes192-cbc','aes128-cbc','3des-cbc']}]}, | 225 | ··························'aes192-cbc','aes128-cbc','3des-cbc']}]}, |
| 226 | ·{mac,[{client2server,['hmac-sha2-256','hmac-sha2-512', | 226 | ·{mac,[{client2server,['hmac-sha2-256','hmac-sha2-512', |
| 227 | ·······················'hmac-sha1']}, | 227 | ·······················'hmac-sha1']}, |
| 228 | ·······{server2client,['hmac-sha2-256','hmac-sha2-512', | 228 | ·······{server2client,['hmac-sha2-256','hmac-sha2-512', |
| 229 | ·······················'hmac-sha1']}]}, | 229 | ·······················'hmac-sha1']}]}, |
| 230 | ·{compression,[{client2server,[none,'zlib@openssh.com',zlib]}, | 230 | ·{compression,[{client2server,[none,'zlib@openssh.com',zlib]}, |
| 231 | ···············{server2client,[none,'zlib@openssh.com',zlib]}]}]</code></pre><p>Note·that·the·algorithms·in·the·file·<code·class="inline">ex2.config</code>·is·not·yet·applied.·They·will | 231 | ···············{server2client,[none,'zlib@openssh.com',zlib]}]}]</code></pre><p>Note·that·the·algorithms·in·the·file·<code·class="inline">ex2.config</code>·is·not·yet·applied.·They·will |
| 232 | be·when·we·start·ssh:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">2>·</span><span·class="nc">ssh</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id=" | 232 | be·when·we·start·ssh:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">2>·</span><span·class="nc">ssh</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id="5609827921-1">(</span><span·class="p"·data-group-id="5609827921-1">)</span><span·class="p">.</span><span·class="w"> |
| 233 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> | 233 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> |
| 234 | 3>·</span><span·class="nc">ssh</span><span·class="p">:</span><span·class="nf">default_algorithms</span><span·class="p"·data-group-id=" | 234 | 3>·</span><span·class="nc">ssh</span><span·class="p">:</span><span·class="nf">default_algorithms</span><span·class="p"·data-group-id="5609827921-2">(</span><span·class="p"·data-group-id="5609827921-2">)</span><span·class="p">.</span><span·class="w"> |
| 235 | </span><span·class="p"·data-group-id=" | 235 | </span><span·class="p"·data-group-id="5609827921-3">[</span><span·class="p"·data-group-id="5609827921-4">{</span><span·class="ss">kex</span><span·class="p">,</span><span·class="p"·data-group-id="5609827921-5">[</span><span·class="ss">'ecdh-sha2-nistp384'</span><span·class="p"·data-grou[·...·truncated·by·diffoscope;·len:·69,·SHA:·8ec8cfe81ddd27415b4b4f434a183a9f7495350a30d3d18228dbaed7b7845656·...·]-4">}</span><span·class="p">,</span><span·class="w"> |
| 236 | ·</span><span·class="p"·data-group-id=" | 236 | ·</span><span·class="p"·data-group-id="5609827921-6">{</span><span·class="ss">public_key</span><span·class="p">,</span><span·class="p"·data-group-id="5609827921-7">[</span><span·class="ss">'ssh-rsa'</span><span·class="p"·data-group-id="5609827921-7">]</span><span·class="p"·data-group-id[·...·truncated·by·diffoscope;·len:·12,·SHA:·7c4ea6ec38eb57b1f237375e591131145dec70286f17ece5a411c5878f673839·...·]-6">}</span><span·class="p">,</span><span·class="w"> |
| 237 | ·</span><span·class="p"·data-group-id=" | 237 | ·</span><span·class="p"·data-group-id="5609827921-8">{</span><span·class="ss">cipher</span><span·class="p">,</span><span·class="p"·data-group-id="5609827921-9">[</span><span·class="p"·data-group-id="5609827921-10">{</span><span·class="ss">client2server</span><span·class="p">,</span><span·class=[·...·truncated·by·diffoscope;·len:·181,·SHA:·e74b39b1b30b7d9f0bf5f104e304d370f70b39ec7e48c3ffa433f5d817d56e0f·...·]-10">}</span><span·class="p">,</span><span·class="w"> |
| 238 | ··········</span><span·class="p"·data-group-id=" | 238 | ··········</span><span·class="p"·data-group-id="5609827921-12">{</span><span·class="ss">server2client</span><span·class="p">,</span><span·class="p"·data-group-id="5609827921-13">[</span><span·class="ss">'aes192-ctr'</span><span·class="p"·data-group-id="5609827921-13">]</span><span·class="p"·data[·...·truncated·by·diffoscope;·len:·128,·SHA:·bf3b72bc10e035e5d7543a901f68bd86fa2c91774ccd1ae38f1775f27fe1594a·...·]-8">}</span><span·class="p">,</span><span·class="w"> |
| 239 | ·</span><span·class="p"·data-group-id=" | 239 | ·</span><span·class="p"·data-group-id="5609827921-14">{</span><span·class="ss">mac</span><span·class="p">,</span><span·class="p"·data-group-id="5609827921-15">[</span><span·class="p"·data-group-id="5609827921-16">{</span><span·class="ss">client2server</span><span·class="p">,</span><span·class="[·...·truncated·by·diffoscope;·len:·179,·SHA:·1c3a02f3f26702d4a7028199a7b42ca065596d1ff7debd5ed15b8eb3a2e41308·...·]-16">}</span><span·class="p">,</span><span·class="w"> |
| 240 | ·······</span><span·class="p"·data-group-id="4077793089-18">{</span><span·class="ss">server2client</span><span·class="p">,</span><span·class="p"·data-group-id="4077793089-19">[</span><span·class="ss">'hmac-sha1'</span><span·class="p"·data-group-id="4077793089-19">]</span><span·class="p"·data-group-id="4077793089-18">}</span><span·class="p"·data-group-id="4077793089-15">]</span><span·class="p"·data-group-id="4077793089-14">}</span><span·class="p">,</span><span·class="w"> | ||
| 241 | ·</span><span·class="p"·data-group-id="4077793089-20">{</span><span·class="ss">compression</span><span·class="p">,</span><span·class="p"·data-group-id="4077793089-21">[</span><span·class="p"·data-group-id="4077793089-22">{</span><span·class="ss">client2server</span><span·class="p">,</span><span·class="p"·data-group-id="4077793089-23">[</span><span·class="ss">none</span><span·class="p">,</span><span·class="ss">'zlib@openssh.com'</span><span·class="p">,</span><span·class="ss">zlib</span><span·class="p"·data-group-id="4077793089-23">]</span><span·class="p"·data-group-id="4077793089-22">}</span><span·class="p">,</span><span·class="w"> | ||
| 242 | ······· | 240 | ·······</span><span·class="p"·data-group-id="5609827921-18">{</span><span·class="ss">server2client</span><span·class="p">,</span><span·class="p"·data-group-id="5609827921-19">[</span><span·class="ss">'hmac-sha1'</span><span·class="p"·data-group-id="560982[·...·truncated·by·diffoscope;·len:·196,·SHA:·6121b9e0930cb0f93454aaf37dd3b829cbd508357e03a26a7bab526b90473758·...·]</span><span·class="w"> |
| 241 | ·</span><span·class="p"·data-group-id="5609827921-20">{</span><span·class="ss">compression</span><span·class="p">,</span><span·class="p"·data-group-id="5609827921-21">[</span><span·class="p"·data-group-id="5609827921-22">{</span><span·class="ss">client2server</span><span·class="p">,</span><span·class="p"·data-group-id="5609827921-23">[</span><span·class="ss">none</span><span·class="p">,</span><span·class="ss">'zlib@openssh.com'</span><span·class="p">,</span><span·class="ss">zlib</span><span·class="p"·data-group-id="5609827921-23">]</span><span·class="p"·data-group-id="5609827921-22">}</span><span·class="p">,</span><span·class="w"> | ||
| 242 | ···············</span><span·class="p"·data-group-id="5609827921-24">{</span><span·class="ss">server2client</span><span·class="p">,</span><span·class="p"·data-group-id="5609827921-25">[</span><span·class="ss">none</span><span·class="p">,</span><span·class="ss">'zlib@openssh.com'</span><span·class="p">,</span><span·class="ss">zlib</span><span·class="p"·data-group-id="5609827921-25">]</span><span·class="p"·data-group-id="5609827921-24">}</span><span·class="p"·data-group-id="5609827921-21">]</span><span·class="p"·data-group-id="5609827921-20">}</span><span·class="p"·data-group-id="5609827921-3">]</span><span·class="w"> | ||
| 243 | </span><span·class="mi">4</span><span·class="o">></span></code></pre><p>We·see·that·the·algorithm·set·is·changed·to·the·one·in·the·<code·class="inline">ex2.config</code>.·Since | 243 | </span><span·class="mi">4</span><span·class="o">></span></code></pre><p>We·see·that·the·algorithm·set·is·changed·to·the·one·in·the·<code·class="inline">ex2.config</code>.·Since |
| 244 | <code·class="inline">compression</code>·is·not·specified·in·the·file,·the·hard-coded·default·is·still·used | 244 | <code·class="inline">compression</code>·is·not·specified·in·the·file,·the·hard-coded·default·is·still·used |
| 245 | for·that·entry.</p><h4>Establishing·a·connection·(ssh:connect·et·al)·or·starting·a·daemon·(ssh:daemon)</h4><p>Both·when·the·client·establishes·a·connection·with·ssh:connect·or·other | 245 | for·that·entry.</p><h4>Establishing·a·connection·(ssh:connect·et·al)·or·starting·a·daemon·(ssh:daemon)</h4><p>Both·when·the·client·establishes·a·connection·with·ssh:connect·or·other |
| 246 | functions,·or·a·daemon·is·started·with·ssh:daemon,·the·option·lists·in·the | 246 | functions,·or·a·daemon·is·started·with·ssh:daemon,·the·option·lists·in·the |
| 247 | function·calls·are·also·used.</p><p>If·a·client·is·started·(ssh:connect·et·al),·the·environment·variable | 247 | function·calls·are·also·used.</p><p>If·a·client·is·started·(ssh:connect·et·al),·the·environment·variable |
| 248 | <code·class="inline">client_options</code>·is·used.·Similarly·for·a·daemon·the·<code·class="inline">server_options</code>·variable | 248 | <code·class="inline">client_options</code>·is·used.·Similarly·for·a·daemon·the·<code·class="inline">server_options</code>·variable |
| 249 | is·handled.</p><p>If·any·<a·href="ssh.html#t:preferred_algorithms_common_option/0">preferred_algorithms</a>·is | 249 | is·handled.</p><p>If·any·<a·href="ssh.html#t:preferred_algorithms_common_option/0">preferred_algorithms</a>·is |
| 250 | present,·the·one·with·the·highest·level·is·used,·that·is,·the·<code·class="inline">Option</code>·list | 250 | present,·the·one·with·the·highest·level·is·used,·that·is,·the·<code·class="inline">Option</code>·list |
| 251 | parameter·has·the·highest·priority.·Then·the | 251 | parameter·has·the·highest·priority.·Then·the |
| 252 | <a·href="ssh.html#t:modify_algorithms_common_option/0">modify_algorithms</a>·on·all·levels·in | 252 | <a·href="ssh.html#t:modify_algorithms_common_option/0">modify_algorithms</a>·on·all·levels·in |
| 253 | order·starting·with·level·0·are·applied.</p><p>We·continue·the·example·above·by·connecting·to·a·server·and·modifying·the·<code·class="inline">kex</code> | 253 | order·starting·with·level·0·are·applied.</p><p>We·continue·the·example·above·by·connecting·to·a·server·and·modifying·the·<code·class="inline">kex</code> |
| 254 | algorithm·set.·We·remove·the·only·one·(<code·class="inline">'ecdh-sha2-nistp384'</code>)·and·add | 254 | algorithm·set.·We·remove·the·only·one·(<code·class="inline">'ecdh-sha2-nistp384'</code>)·and·add |
| 255 | <code·class="inline">'curve25519-sha256@libssh.org'</code>·by·appending·it·to·the·now·empty·list:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">4>·</span><span·class="p"·data-group-id=" | 255 | <code·class="inline">'curve25519-sha256@libssh.org'</code>·by·appending·it·to·the·now·empty·list:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">4>·</span><span·class="p"·data-group-id="4373584897-1">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="n">C</span><span·class="p"·data-group-id="4373584897-1">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">ssh</span><span·cl[·...·truncated·by·diffoscope;·len:·88,·SHA:·e8e48ec45eab78e65980fdf51136f6fb3174fd95984cbeaf05caeb619ec50f84·...·]-2">(</span><span·class="ss">loopback</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">22</span><span·class="p">,</span><span·class="w"> |
| 256 | ························</span><span·class="p"·data-group-id=" | 256 | ························</span><span·class="p"·data-group-id="4373584897-3">[</span><span·class="p"·data-group-id="4373584897-4">{</span><span·class="ss">modify_algorithms</span><span·class="p">,</span><span·class="w"> |
| 257 | ·································</span><span·class="p"·data-group-id=" | 257 | ·································</span><span·class="p"·data-group-id="4373584897-5">[</span><span·class="p"·data-group-id="4373584897-6">{</span><span·class="ss">rm</span><span·class="p">,</span><span·class="w"> |
| 258 | ·····································</span><span·class="p"·data-group-id=" | 258 | ·····································</span><span·class="p"·data-group-id="4373584897-7">[</span><span·class="w">·</span><span·class="p"·data-group-id="4373584897-8">{</span><span·class="ss">kex</span><span·class="p">,</span><span·class="p"·data-group-id="4373584897-9">[</span><span·class="ss">'ecdh-sha2-nistp384'</span><[·...·truncated·by·diffoscope;·len:·170,·SHA:·25d15166eac6f5d8f6b4eab773d7a0355dea6ece818e3478613e2042dcc27fc4·...·]-7">]</span><span·class="w"> |
| 259 | » » » » ··</span><span·class="p"·data-group-id=" | 259 | » » » » ··</span><span·class="p"·data-group-id="4373584897-6">}</span><span·class="p">,</span><span·class="w"> |
| 260 | ··································</span><span·class="p"·data-group-id=" | 260 | ··································</span><span·class="p"·data-group-id="4373584897-10">{</span><span·class="ss">append</span><span·class="p">,</span><span·class="w"> |
| 261 | » » » ·············</span><span·class="p"·data-group-id=" | 261 | » » » ·············</span><span·class="p"·data-group-id="4373584897-11">[</span><span·class="w">·</span><span·class="p"·data-group-id="4373584897-12">{</span><span·class="ss">kex</span><span·class="p">,</span><span·class="p"·data-group-id="4373584897-13">[</span><span·class="ss">'curve25519-sha256@libssh.org[·...·truncated·by·diffoscope;·len:·185,·SHA:·029ed9e5a292826b583951031ae562e41d7350f888cdd682d82edba5f10caf40·...·]-11">]</span><span·class="w"> |
| 262 | » » » » ··</span><span·class="p"·data-group-id=" | 262 | » » » » ··</span><span·class="p"·data-group-id="4373584897-10">}</span><span·class="w"> |
| 263 | » » » » ·</span><span·class="p"·data-group-id=" | 263 | » » » » ·</span><span·class="p"·data-group-id="4373584897-5">]</span><span·class="w"> |
| 264 | » ·················</span><span·class="p"·data-group-id=" | 264 | » ·················</span><span·class="p"·data-group-id="4373584897-4">}</span><span·class="w"> |
| 265 | ························</span><span·class="p"·data-group-id=" | 265 | ························</span><span·class="p"·data-group-id="4373584897-3">]</span><span·class="p"·data-group-id="4373584897-2">)</span><span·class="p">.</span><span·class="w"> |
| 266 | </span><span·class="p"·data-group-id=" | 266 | </span><span·class="p"·data-group-id="4373584897-14">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="o">></span><span·class="mf">0.118</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="p"·data-group-id="4373584897-14">}</span></code></pre><p>We·check·which·algorithms·are·negotiated·by·the·client·and·the·server,·and·note |
| 267 | that·the·(only)·<code·class="inline">kex</code>·algorithm·<code·class="inline">'curve25519-sha256@libssh.org'</code>·was·selected:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">5>·</span><span·class="nc">ssh</span><span·class="p">:</span><span·class="nf">connection_info</span><span·class="p"·data-group-id=" | 267 | that·the·(only)·<code·class="inline">kex</code>·algorithm·<code·class="inline">'curve25519-sha256@libssh.org'</code>·was·selected:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">5>·</span><span·class="nc">ssh</span><span·class="p">:</span><span·class="nf">connection_info</span><span·class="p"·data-group-id="7067924273-1">(</span><span·class="n">C</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">algorithms</span><span·class="p"·data-group-id="7067924273-1">)</span><span·class="p">.</span><span·class="w"> |
| 268 | </span><span·class="p"·data-group-id=" | 268 | </span><span·class="p"·data-group-id="7067924273-2">{</span><span·class="ss">algorithms</span><span·class="p">,</span><span·class="p"·data-group-id="7067924273-3">[</span><span·class="p"·data-group-id="7067924273-4">{</span><span·class="ss">kex</span><span·class="p">,</span><span·class="ss">&#[·...·truncated·by·diffoscope;·len:·84,·SHA:·337afbcfd6beb9a7b822440bf19edf588da45a6add538020b3fb3c730db70363·...·]-4">}</span><span·class="p">,</span><span·class="w"> |
| 269 | ·············</span><span·class="p"·data-group-id=" | 269 | ·············</span><span·class="p"·data-group-id="7067924273-5">{</span><span·class="ss">hkey</span><span·class="p">,</span><span·class="ss">'ssh-rsa'</span><span·class="p"·data-group-id="7067924273-5">}</span><span·class="p">,</span><span·class="w"> |
| 270 | ·············</span><span·class="p"·data-group-id=" | 270 | ·············</span><span·class="p"·data-group-id="7067924273-6">{</span><span·class="ss">send_mac</span><span·class="p">,</span><span·class="ss">'hmac-sha1'</span><span·class="p"·data-group-id="7067924273-6">}</span><span·class="p">,</span><span·class="w"> |
| 271 | ·············</span><span·class="p"·data-group-id=" | 271 | ·············</span><span·class="p"·data-group-id="7067924273-7">{</span><span·class="ss">recv_mac</span><span·class="p">,</span><span·class="ss">'hmac-sha1'</span><span·class="p"·data-group-id="7067924273-7">}</span><span·class="p">,</span><span·class="w"> |
| 272 | ·············</span><span·class="p"·data-group-id=" | 272 | ·············</span><span·class="p"·data-group-id="7067924273-8">{</span><span·class="ss">encrypt</span><span·class="p">,</span><span·class="ss">'aes192-ctr'</span><span·class="p"·data-group-id="7067924273-8">}</span><span·class="p">,</span><span·class="w"> |
| 273 | ·············</span><span·class="p"·data-group-id=" | 273 | ·············</span><span·class="p"·data-group-id="7067924273-9">{</span><span·class="ss">decrypt</span><span·class="p">,</span><span·class="ss">'aes192-ctr'</span><span·class="p"·data-group-id="7067924273-9">}</span><span·class="p">,</span><span·class="w"> |
| 274 | ·············</span><span·class="p"·data-group-id=" | 274 | ·············</span><span·class="p"·data-group-id="7067924273-10">{</span><span·class="ss">compress</span><span·class="p">,</span><span·class="ss">none</span><span·class="p"·data-group-id="7067924273-10">}</span><span·class="p">,</span><span·class="w"> |
| 275 | ·············</span><span·class="p"·data-group-id=" | 275 | ·············</span><span·class="p"·data-group-id="7067924273-11">{</span><span·class="ss">decompress</span><span·class="p">,</span><span·class="ss">none</span><span·class="p"·data-group-id="7067924273-11">}</span><span·class="p">,</span><span·class="w"> |
| 276 | ·············</span><span·class="p"·data-group-id=" | 276 | ·············</span><span·class="p"·data-group-id="7067924273-12">{</span><span·class="ss">send_ext_info</span><span·class="p">,</span><span·class="ss">false</span><span·class="p"·data-group-id="7067924273-12">}</span><span·class="p">,</span><span·class="w"> |
| 277 | ·············</span><span·class="p"·data-group-id=" | 277 | ·············</span><span·class="p"·data-group-id="7067924273-13">{</span><span·class="ss">recv_ext_info</span><span·class="p">,</span><span·class="ss">true</span><span·class="p"·data-group-id="7067924273-13">}</span><span·class="p"·data-group-id="7067924273-3">]</span><span·class="p"·data-group-id="706792[·...·truncated·by·diffoscope;·len:·4,·SHA:·864e30ed8784e9cd8adca9764fb524791ccd9d36e6d2a31067369a5173b6eb25·...·]-2">}</span></code></pre><h4>Example·of·modify_algorithms·handling</h4><p>We·will·now·check·if·the |
| 278 | <a·href="ssh.html#t:modify_algorithms_common_option/0">modify_algorithms</a>·on·a·lower·level | 278 | <a·href="ssh.html#t:modify_algorithms_common_option/0">modify_algorithms</a>·on·a·lower·level |
| 279 | is·applied·to·a | 279 | is·applied·to·a |
| 280 | <a·href="ssh.html#t:preferred_algorithms_common_option/0">preferred_algorithms</a>·on·a·higher | 280 | <a·href="ssh.html#t:preferred_algorithms_common_option/0">preferred_algorithms</a>·on·a·higher |
| 281 | level.·We·will·do·that·by·enabling·the·<code·class="inline">ssh-dss</code>·algorithm·that·is·supported, | 281 | level.·We·will·do·that·by·enabling·the·<code·class="inline">ssh-dss</code>·algorithm·that·is·supported, |
| 282 | but·not·in·the·default·set.</p><p>The·config·file·<code·class="inline">ex3.config</code>·has·the·contents:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 282 | but·not·in·the·default·set.</p><p>The·config·file·<code·class="inline">ex3.config</code>·has·the·contents:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="0070586021-1">[</span><span·class="w"> |
| 283 | ·</span><span·class="p"·data-group-id=" | 283 | ·</span><span·class="p"·data-group-id="0070586021-2">{</span><span·class="ss">ssh</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0070586021-3">[</span><span·class="p"·data-group-id="0070586021-4">{</span><span·class="ss">modify_algorithms</span><span·class="p">,</span><span·class="w"> |
| 284 | ·········</span><span·class="p"·data-group-id=" | 284 | ·········</span><span·class="p"·data-group-id="0070586021-5">[</span><span·class="w">·</span><span·class="p"·data-group-id="0070586021-6">{</span><span·class="ss">prepend</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0070586021-7">[</span><span·class="p"·data-grou[·...·truncated·by·diffoscope;·len:·481,·SHA:·34590c0c83e5f8ffb05127324ef1007faf62ae1513c9dfc9f3184e0f10935c86·...·]-5">]</span><span·class="w"> |
| 285 | ········</span><span·class="p"·data-group-id=" | 285 | ········</span><span·class="p"·data-group-id="0070586021-4">}</span><span·class="p"·data-group-id="0070586021-3">]</span><span·class="p"·data-group-id="0070586021-2">}</span><span·class="w"> |
| 286 | </span><span·class="p"·data-group-id=" | 286 | </span><span·class="p"·data-group-id="0070586021-1">]</span><span·class="p">.</span></code></pre><p>A·newly·started·erlang·shell·shows·that·no·<code·class="inline">'ssh-dss'</code>·is·present·in·the |
| 287 | <code·class="inline">public_key</code>·entry:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">proplists</span><span·class="p">:</span><span·class="nf">get_value</span><span·class="p"·data-group-id=" | 287 | <code·class="inline">public_key</code>·entry:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">proplists</span><span·class="p">:</span><span·class="nf">get_value</span><span·class="p"·data-group-id="3327758378-1">(</span><span·class="ss">public_key</span><span·class="p">,</span><span·class="w">·</span><span·class="nc">ssh</span><span·class="p">:</span><span·class="nf">default_algorithms</span><span·class="p"·data-group-id="3327758378-2">(</span><span·[·...·truncated·by·diffoscope;·len:·88,·SHA:·09047223884ae0c3235ccea2e6ba9353f926162a385df2c3a57f4d2e3175b17b·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 288 | </span><span·class="p"·data-group-id=" | 288 | </span><span·class="p"·data-group-id="3327758378-3">[</span><span·class="ss">'ecdsa-sha2-nistp384'</span><span·class="p">,</span><span·class="ss">'ecdsa-sha2-nistp521'</span><span·class="p">,</span><span·class="w"> |
| 289 | ·</span><span·class="ss">'ecdsa-sha2-nistp256'</span><span·class="p">,</span><span·class="ss">'ssh-ed25519'</span><span·class="p">,</span><span·class="ss">'ssh-ed448'</span><span·class="p">,</span><span·class="w"> | 289 | ·</span><span·class="ss">'ecdsa-sha2-nistp256'</span><span·class="p">,</span><span·class="ss">'ssh-ed25519'</span><span·class="p">,</span><span·class="ss">'ssh-ed448'</span><span·class="p">,</span><span·class="w"> |
| 290 | ·</span><span·class="ss">'rsa-sha2-256'</span><span·class="p">,</span><span·class="ss">'rsa-sha2-512'</span><span·class="p">,</span><span·class="ss">'ssh-rsa'</span><span·class="p"·data-group-id=" | 290 | ·</span><span·class="ss">'rsa-sha2-256'</span><span·class="p">,</span><span·class="ss">'rsa-sha2-512'</span><span·class="p">,</span><span·class="ss">'ssh-rsa'</span><span·class="p"·data-group-id="3327758378-3">]</span><span·class="w"> |
| 291 | </span><span·class="mi">2</span><span·class="o">></span></code></pre><p>A·call·to·<a·href="ssh.html#connect/3"><code·class="inline">ssh:connect/3</code></a>·removes·all·algorithms·but·one·of·each·type:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">2>·</span><span·class="nc">ssh</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id="0 | 291 | </span><span·class="mi">2</span><span·class="o">></span></code></pre><p>A·call·to·<a·href="ssh.html#connect/3"><code·class="inline">ssh:connect/3</code></a>·removes·all·algorithms·but·one·of·each·type:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">2>·</span><span·class="nc">ssh</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id="0238368964-1">(</span><span·class="p"·data-group-id="0238368964-1">)</span><span·class="p">.</span><span·class="w"> |
| 292 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> | 292 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> |
| 293 | 3>·</span><span·class="p"·data-group-id="0 | 293 | 3>·</span><span·class="p"·data-group-id="0238368964-2">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="n">C</span><span·class="p"·data-group-id="0238368964-2">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">ssh</span><span·cla[·...·truncated·by·diffoscope;·len:·87,·SHA:·da2608504b7d63938c033c35800f27b6c4d04921627913f220d627b16844d197·...·]-3">(</span><span·class="ss">loopback</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">22</span><span·class="p">,</span><span·class="w"> |
| 294 | ························</span><span·class="p"·data-group-id="0 | 294 | ························</span><span·class="p"·data-group-id="0238368964-4">[</span><span·class="p"·data-group-id="0238368964-5">{</span><span·class="ss">preferred_algorithms</span><span·class="p">,</span><span·class="w"> |
| 295 | ·························</span><span·class="p"·data-group-id="0 | 295 | ·························</span><span·class="p"·data-group-id="0238368964-6">[</span><span·class="p"·data-group-id="0238368964-7">{</span><span·class="ss">public_key</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0238368964-8">[</span><span·class="ss">'ecdsa-sha2-nistp256'<[·...·truncated·by·diffoscope;·len:·100,·SHA:·f410e65446b0653e9789eed65becf839b2efa79cc16f151db8767f25a6e0bba8·...·]-7">}</span><span·class="p">,</span><span·class="w"> |
| 296 | » » » ··</span><span·class="p"·data-group-id="0 | 296 | » » » ··</span><span·class="p"·data-group-id="0238368964-9">{</span><span·class="ss">kex</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0238368964-10">[</span><span·class="ss">'ecdh-sha2-nistp256'</span><span·class="p"·data-group-id="0238368964-10">]</span>[·...·truncated·by·diffoscope;·len:·41,·SHA:·600c5b62da268488187485ec32ac7a6fd52d82bb512590e64c1132163722e6b8·...·]-9">}</span><span·class="p">,</span><span·class="w"> |
| 297 | » » ··········</span><span·class="p"·data-group-id="0 | 297 | » » ··········</span><span·class="p"·data-group-id="0238368964-11">{</span><span·class="ss">cipher</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0238368964-12">[</span><span·class="ss">'chacha20-poly1305@openssh.com'</span><span·class="p"·data-group-id="02383689[·...·truncated·by·diffoscope;·len:·56,·SHA:·f8b59a02fa9b344229e1aeaaffae8b1484ad7bdae5dd057c0bce0b6cc37237da·...·]-11">}</span><span·class="p">,</span><span·class="w"> |
| 298 | » » » ··</span><span·class="p"·data-group-id="0 | 298 | » » » ··</span><span·class="p"·data-group-id="0238368964-13">{</span><span·class="ss">mac</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0238368964-14">[</span><span·class="ss">'hmac-sha2-256'</span><span·class="p"·data-group-id="0238368964-14">]</span><spa[·...·truncated·by·diffoscope;·len:·37,·SHA:·2ba1f8d0d8261cc9b50a4127379ecc53549eaa3f8dc17ce0dde6c4db3666a167·...·]-13">}</span><span·class="p">,</span><span·class="w"> |
| 299 | » » » ··</span><span·class="p"·data-group-id="0 | 299 | » » » ··</span><span·class="p"·data-group-id="0238368964-15">{</span><span·class="ss">compression</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0238368964-16">[</span><span·class="ss">none</span><span·class="p"·data-group-id="0238368964-16">]</span><span·class="p"[·...·truncated·by·diffoscope;·len:·26,·SHA:·042d78c49fb3e65a0a4658a53fdb4f338cf360e434e8087c1b0c31b7bda0f01b·...·]-15">}</span><span·class="w"> |
| 300 | » » » ··</span><span·class="p"·data-group-id="0 | 300 | » » » ··</span><span·class="p"·data-group-id="0238368964-6">]</span><span·class="p"·data-group-id="0238368964-5">}</span><span·class="w"> |
| 301 | » » » ·</span><span·class="p"·data-group-id="0 | 301 | » » » ·</span><span·class="p"·data-group-id="0238368964-4">]</span><span·class="p"·data-group-id="0238368964-3">)</span><span·class="p">.</span><span·class="w"> |
| 302 | </span><span·class="p"·data-group-id="0 | 302 | </span><span·class="p"·data-group-id="0238368964-17">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="o"><</span><span·class="mf">0.101</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="p"·data-group-id="0238368964-17">}</span><span·class="gp·unselectable"> |
| 303 | 4>·</span><span·class="nc">ssh</span><span·class="p">:</span><span·class="nf">connection_info</span><span·class="p"·data-group-id="0 | 303 | 4>·</span><span·class="nc">ssh</span><span·class="p">:</span><span·class="nf">connection_info</span><span·class="p"·data-group-id="0238368964-18">(</span><span·class="n">C</span><span·class="p">,</span><span·class="ss">algorithms</span><span·class="p"·data-group-id="0238368964-18">)</span><span·class="p">.</span><span·class="w"> |
| 304 | </span><span·class="p"·data-group-id="0 | 304 | </span><span·class="p"·data-group-id="0238368964-19">{</span><span·class="ss">algorithms</span><span·class="p">,</span><span·class="p"·data-group-id="0238368964-20">[</span><span·class="p"·data-group-id="0238368964-21">{</span><span·class="ss">kex</span><span·class="p">,</span><span·class="ss">[·...·truncated·by·diffoscope;·len:·76,·SHA:·af10a41152fc6e7b73438ed5eae57a873dd81f235966bf89620541da1f41dcb9·...·]-21">}</span><span·class="p">,</span><span·class="w"> |
| 305 | ·············</span><span·class="p"·data-group-id="0 | 305 | ·············</span><span·class="p"·data-group-id="0238368964-22">{</span><span·class="ss">hkey</span><span·class="p">,</span><span·class="ss">'ssh-dss'</span><span·class="p"·data-group-id="0238368964-22">}</span><span·class="p">,</span><span·class="w"> |
| 306 | ·············</span><span·class="p"·data-group-id="0 | 306 | ·············</span><span·class="p"·data-group-id="0238368964-23">{</span><span·class="ss">send_mac</span><span·class="p">,</span><span·class="ss">'chacha20-poly1305@openssh.com'</span><span·class="p"·data-group-id="0238368964-23">}</span><span·class="p">,</span><span·class="w"> |
| 307 | ·············</span><span·class="p"·data-group-id="0 | 307 | ·············</span><span·class="p"·data-group-id="0238368964-24">{</span><span·class="ss">recv_mac</span><span·class="p">,</span><span·class="ss">'chacha20-poly1305@openssh.com'</span><span·class="p"·data-group-id="0238368964-24">}</span><span·class="p">,</span><span·class="w"> |
| 308 | ·············</span><span·class="p"·data-group-id="0 | 308 | ·············</span><span·class="p"·data-group-id="0238368964-25">{</span><span·class="ss">encrypt</span><span·class="p">,</span><span·class="ss">'chacha20-poly1305@openssh.com'</span><span·class="p"·data-group-id="0238368964-25">}</span><span·class="p">,</span><span·class="w"> |
| 309 | ·············</span><span·class="p"·data-group-id="0 | 309 | ·············</span><span·class="p"·data-group-id="0238368964-26">{</span><span·class="ss">decrypt</span><span·class="p">,</span><span·class="ss">'chacha20-poly1305@openssh.com'</span><span·class="p"·data-group-id="0238368964-26">}</span><span·class="p">,</span><span·class="w"> |
| 310 | ·············</span><span·class="p"·data-group-id="0 | 310 | ·············</span><span·class="p"·data-group-id="0238368964-27">{</span><span·class="ss">compress</span><span·class="p">,</span><span·class="ss">none</span><span·class="p"·data-group-id="0238368964-27">}</span><span·class="p">,</span><span·class="w"> |
| 311 | ·············</span><span·class="p"·data-group-id="0 | 311 | ·············</span><span·class="p"·data-group-id="0238368964-28">{</span><span·class="ss">decompress</span><span·class="p">,</span><span·class="ss">none</span><span·class="p"·data-group-id="0238368964-28">}</span><span·class="p">,</span><span·class="w"> |
| 312 | ·············</span><span·class="p"·data-group-id="0 | 312 | ·············</span><span·class="p"·data-group-id="0238368964-29">{</span><span·class="ss">send_ext_info</span><span·class="p">,</span><span·class="ss">false</span><span·class="p"·data-group-id="0238368964-29">}</span><span·class="p">,</span><span·class="w"> |
| 313 | ·············</span><span·class="p"·data-group-id="0 | 313 | ·············</span><span·class="p"·data-group-id="0238368964-30">{</span><span·class="ss">recv_ext_info</span><span·class="p">,</span><span·class="ss">true</span><span·class="p"·data-group-id="0238368964-30">}</span><span·class="p"·data-group-id="0238368964-20">]</span><span·class="p"·data-group-id="023836[·...·truncated·by·diffoscope;·len:·4,·SHA:·3dae35a974004d9515fef8861fab0acb4d8774bfdf5b1fa29e9f0e27c0ed4b23·...·]-19">}</span><span·class="w"> |
| 314 | </span><span·class="mi">5</span><span·class="o">></span></code></pre><p>But·<code·class="inline">'ssh-dss'</code>·is·selected·although·the·call·inserted·<em>only</em> | 314 | </span><span·class="mi">5</span><span·class="o">></span></code></pre><p>But·<code·class="inline">'ssh-dss'</code>·is·selected·although·the·call·inserted·<em>only</em> |
| 315 | <code·class="inline">'ecdsa-sha2-nistp256'</code>·as·acceptable.</p><p>This·example·showed·that·we·could·augment·the·set·of·algorithms·with·a | 315 | <code·class="inline">'ecdsa-sha2-nistp256'</code>·as·acceptable.</p><p>This·example·showed·that·we·could·augment·the·set·of·algorithms·with·a |
| 316 | config-file·without·the·need·to·change·the·actual·call.</p><p>For·demonstration·purposes·we·used·<code·class="inline">prepend</code>·instead·of·<code·class="inline">append</code>.·This·forces | 316 | config-file·without·the·need·to·change·the·actual·call.</p><p>For·demonstration·purposes·we·used·<code·class="inline">prepend</code>·instead·of·<code·class="inline">append</code>.·This·forces |
| 317 | the·negotiation·to·select·<code·class="inline">ssh-dss</code>·since·the·the·full·list·of·public·key | 317 | the·negotiation·to·select·<code·class="inline">ssh-dss</code>·since·the·the·full·list·of·public·key |
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| 166 | ··</a> | 166 | ··</a> |
| 167 | ··<span·class="text">The·SSH·app's·mechanism</span> | 167 | ··<span·class="text">The·SSH·app's·mechanism</span> |
| 168 | </h3> | 168 | </h3> |
| 169 | <p>The·set·of·algorithms·that·the·SSH·app·uses·by·default·depends·on·the·algorithms | 169 | <p>The·set·of·algorithms·that·the·SSH·app·uses·by·default·depends·on·the·algorithms |
| 170 | supported·by·the:</p><ul><li><a·href="../../../../lib/crypto-5.6/doc/html/crypto.html"><code·class="inline">crypto</code></a>·app,</li><li>The·cryptolib·OTP·is·linked·with,·usually·the·one·the·OS·uses,·probably | 170 | supported·by·the:</p><ul><li><a·href="../../../../lib/crypto-5.6/doc/html/crypto.html"><code·class="inline">crypto</code></a>·app,</li><li>The·cryptolib·OTP·is·linked·with,·usually·the·one·the·OS·uses,·probably |
| 171 | OpenSSL,</li><li>and·finally·what·the·SSH·app·implements</li></ul><p>Due·to·this,·it·impossible·to·list·in·documentation·what·algorithms·that·are | 171 | OpenSSL,</li><li>and·finally·what·the·SSH·app·implements</li></ul><p>Due·to·this,·it·impossible·to·list·in·documentation·what·algorithms·that·are |
| 172 | available·in·a·certain·installation.</p><p>There·is·an·important·command·to·list·the·actual·algorithms·and·their·ordering: | 172 | available·in·a·certain·installation.</p><p>There·is·an·important·command·to·list·the·actual·algorithms·and·their·ordering: |
| 173 | <a·href="ssh.html#default_algorithms/0"><code·class="inline">ssh:default_algorithms/0</code></a>.</p><pre·id="example_default_algorithms"><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">0>·</span><span·class="nc">ssh</span><span·class="p">:</span><span·class="nf">default_algorithms</span><span·class="p"·data-group-id=" | 173 | <a·href="ssh.html#default_algorithms/0"><code·class="inline">ssh:default_algorithms/0</code></a>.</p><pre·id="example_default_algorithms"><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">0>·</span><span·class="nc">ssh</span><span·class="p">:</span><span·class="nf">default_algorithms</span><span·class="p"·data-group-id="6354046823-1">(</span><span·class="p"·data-group-id="6354046823-1">)</span><span·class="p">.</span><span·class="w"> |
| 174 | </span><span·class="p"·data-group-id=" | 174 | </span><span·class="p"·data-group-id="6354046823-2">[</span><span·class="p"·data-group-id="6354046823-3">{</span><span·class="ss">kex</span><span·class="p">,</span><span·class="p"·data-group-id="6354046823-4">[</span><span·class="ss">'ecdh-sha2-nistp384'</span><span·class="p">,</span><span·class="ss">'ecdh-sha2-nistp521'</span><span·class="p">,</span><span·class="w"> |
| 175 | ·······</span><span·class="ss">'ecdh-sha2-nistp256'</span><span·class="p">,</span><span·class="ss">'diffie-hellman-group-exchange-sha256'</span><span·class="p">,</span><span·class="w"> | 175 | ·······</span><span·class="ss">'ecdh-sha2-nistp256'</span><span·class="p">,</span><span·class="ss">'diffie-hellman-group-exchange-sha256'</span><span·class="p">,</span><span·class="w"> |
| 176 | ·······</span><span·class="ss">'diffie-hellman-group16-sha512'</span><span·class="p">,</span><span·class="w"> | 176 | ·······</span><span·class="ss">'diffie-hellman-group16-sha512'</span><span·class="p">,</span><span·class="w"> |
| 177 | ·······</span><span·class="ss">'diffie-hellman-group18-sha512'</span><span·class="p">,</span><span·class="w"> | 177 | ·······</span><span·class="ss">'diffie-hellman-group18-sha512'</span><span·class="p">,</span><span·class="w"> |
| 178 | ·······</span><span·class="ss">'diffie-hellman-group14-sha256'</span><span·class="p">,</span><span·class="w"> | 178 | ·······</span><span·class="ss">'diffie-hellman-group14-sha256'</span><span·class="p">,</span><span·class="w"> |
| 179 | ·······</span><span·class="ss">'diffie-hellman-group14-sha1'</span><span·class="p">,</span><span·class="w"> | 179 | ·······</span><span·class="ss">'diffie-hellman-group14-sha1'</span><span·class="p">,</span><span·class="w"> |
| 180 | ·······</span><span·class="ss">'diffie-hellman-group-exchange-sha1'</span><span·class="p"·data-group-id=" | 180 | ·······</span><span·class="ss">'diffie-hellman-group-exchange-sha1'</span><span·class="p"·data-group-id="6354046823-4">]</span><span·class="p"·data-group-id="6354046823-3">}</span><span·class="p">,</span><span·class="w"> |
| 181 | ·</span><span·class="p"·data-group-id=" | 181 | ·</span><span·class="p"·data-group-id="6354046823-5">{</span><span·class="ss">public_key</span><span·class="p">,</span><span·class="p"·data-group-id="6354046823-6">[</span><span·class="ss">'ecdsa-sha2-nistp384'</span><span·class="p">,</span><span·class="ss">'ecdsa-sha2-nistp521'</span><span·class="p">,</span><span·class="w"> |
| 182 | ··············</span><span·class="ss">'ecdsa-sha2-nistp256'</span><span·class="p">,</span><span·class="ss">'ssh-rsa'</span><span·class="p">,</span><span·class="ss">'rsa-sha2-256'</span><span·class="p">,</span><span·class="w"> | 182 | ··············</span><span·class="ss">'ecdsa-sha2-nistp256'</span><span·class="p">,</span><span·class="ss">'ssh-rsa'</span><span·class="p">,</span><span·class="ss">'rsa-sha2-256'</span><span·class="p">,</span><span·class="w"> |
| 183 | ··············</span><span·class="ss">'rsa-sha2-512'</span><span·class="p">,</span><span·class="ss">'ssh-dss'</span><span·class="p"·data-group-id=" | 183 | ··············</span><span·class="ss">'rsa-sha2-512'</span><span·class="p">,</span><span·class="ss">'ssh-dss'</span><span·class="p"·data-group-id="6354046823-6">]</span><span·class="p"·data-group-id="6354046823-5">}</span><span·class="p">,</span><span·class="w"> |
| 184 | ·</span><span·class="p"·data-group-id=" | 184 | ·</span><span·class="p"·data-group-id="6354046823-7">{</span><span·class="ss">cipher</span><span·class="p">,</span><span·class="p"·data-group-id="6354046823-8">[</span><span·class="p"·data-group-id="6354046823-9">{</span><span·class="ss">client2server</span><span·class="p">,</span><span·class="[·...·truncated·by·diffoscope;·len:·28,·SHA:·685fd310b8cdddb842f37973e9ba4eb13641f5252bd23fd6df8b29fda03950a7·...·]-10">[</span><span·class="ss">'aes256-gcm@openssh.com'</span><span·class="p">,</span><span·class="w"> |
| 185 | ··························</span><span·class="ss">'aes256-ctr'</span><span·class="p">,</span><span·class="ss">'aes192-ctr'</span><span·class="p">,</span><span·class="ss">'aes128-gcm@openssh.com'</span><span·class="p">,</span><span·class="w"> | 185 | ··························</span><span·class="ss">'aes256-ctr'</span><span·class="p">,</span><span·class="ss">'aes192-ctr'</span><span·class="p">,</span><span·class="ss">'aes128-gcm@openssh.com'</span><span·class="p">,</span><span·class="w"> |
| 186 | ··························</span><span·class="ss">'aes128-ctr'</span><span·class="p">,</span><span·class="ss">'aes128-cbc'</span><span·class="p">,</span><span·class="ss">'3des-cbc'</span><span·class="p"·data-group-id=" | 186 | ··························</span><span·class="ss">'aes128-ctr'</span><span·class="p">,</span><span·class="ss">'aes128-cbc'</span><span·class="p">,</span><span·class="ss">'3des-cbc'</span><span·class="p"·data-group-id="6354046823-10">]</span><span·class="p"·data-group-id="6354046823-9">}</span><span·class="p">,</span><span·class="w"> |
| 187 | ··········</span><span·class="p"·data-group-id=" | 187 | ··········</span><span·class="p"·data-group-id="6354046823-11">{</span><span·class="ss">server2client</span><span·class="p">,</span><span·class="p"·data-group-id="6354046823-12">[</span><span·class="ss">'aes256-gcm@openssh.com'</span><span·class="p">,</span><span·class="ss">'aes256-ctr'</span><span·class="p">,</span><span·class="w"> |
| 188 | ··························</span><span·class="ss">'aes192-ctr'</span><span·class="p">,</span><span·class="ss">'aes128-gcm@openssh.com'</span><span·class="p">,</span><span·class="ss">'aes128-ctr'</span><span·class="p">,</span><span·class="w"> | 188 | ··························</span><span·class="ss">'aes192-ctr'</span><span·class="p">,</span><span·class="ss">'aes128-gcm@openssh.com'</span><span·class="p">,</span><span·class="ss">'aes128-ctr'</span><span·class="p">,</span><span·class="w"> |
| 189 | ··························</span><span·class="ss">'aes128-cbc'</span><span·class="p">,</span><span·class="ss">'3des-cbc'</span><span·class="p"·data-group-id=" | 189 | ··························</span><span·class="ss">'aes128-cbc'</span><span·class="p">,</span><span·class="ss">'3des-cbc'</span><span·class="p"·data-group-id="6354046823-12">]</span><span·class="p"·data-group-id="6354046823-11">}</span><span·class="p"·data-group-id="6354046823-8">]</span><span·class="p"·data-group-id="6354046823-7">}</span><span·class="p">,</span><span·class="w"> |
| 190 | ·</span><span·class="p"·data-group-id=" | 190 | ·</span><span·class="p"·data-group-id="6354046823-13">{</span><span·class="ss">mac</span><span·class="p">,</span><span·class="p"·data-group-id="6354046823-14">[</span><span·class="p"·data-group-id="6354046823-15">{</span><span·class="ss">client2server</span><span·class="p">,</span><span·class="[·...·truncated·by·diffoscope;·len:·28,·SHA:·685fd310b8cdddb842f37973e9ba4eb13641f5252bd23fd6df8b29fda03950a7·...·]-16">[</span><span·class="ss">'hmac-sha2-256'</span><span·class="p">,</span><span·class="ss">'hmac-sha2-512'</span><span·class="p">,</span><span·class="w"> |
| 191 | ·······················</span><span·class="ss">'hmac-sha1'</span><span·class="p"·data-group-id=" | 191 | ·······················</span><span·class="ss">'hmac-sha1'</span><span·class="p"·data-group-id="6354046823-16">]</span><span·class="p"·data-group-id="6354046823-15">}</span><span·class="p">,</span><span·class="w"> |
| 192 | ·······</span><span·class="p"·data-group-id=" | 192 | ·······</span><span·class="p"·data-group-id="6354046823-17">{</span><span·class="ss">server2client</span><span·class="p">,</span><span·class="p"·data-group-id="6354046823-18">[</span><span·class="ss">'hmac-sha2-256'</span><span·class="p">,</span><span·class="ss">'hmac-sha2-512'</span><span·class="p">,</span><span·class="w"> |
| 193 | ·······················</span><span·class="ss">'hmac-sha1'</span><span·class="p"·data-group-id=" | 193 | ·······················</span><span·class="ss">'hmac-sha1'</span><span·class="p"·data-group-id="6354046823-18">]</span><span·class="p"·data-group-id="6354046823-17">}</span><span·class="p"·data-group-id="6354046823-14">]</span><span·class="p"·data-group-id="6354046823-13">}</span><span·class="p">,</span><span·class="w"> |
| 194 | ·</span><span·class="p"·data-group-id=" | 194 | ·</span><span·class="p"·data-group-id="6354046823-19">{</span><span·class="ss">compression</span><span·class="p">,</span><span·class="p"·data-group-id="6354046823-20">[</span><span·class="p"·data-group-id="6354046823-21">{</span><span·class="ss">client2server</span><span·class="p">,</span><span[·...·truncated·by·diffoscope;·len:·298,·SHA:·b3eedfe52c70b2efe57cb157e88993f8ae5b00973d3d12a60b1336985c86a3cb·...·]-21">}</span><span·class="p">,</span><span·class="w"> |
| 195 | ···············</span><span·class="p"·data-group-id=" | 195 | ···············</span><span·class="p"·data-group-id="6354046823-23">{</span><span·class="ss">server2client</span><span·class="p">,</span><span·class="p"·data-group-id="6354046823-24">[</span><span·class="ss">none</span><span·class="p">,</span><span·class="ss">'zlib@openssh.com'</span><span·class="p">[·...·truncated·by·diffoscope;·len:·293,·SHA:·684f145e290d4ddbf3cbae09604858ac59078a3aa0ca84d918d0c1aa16be12f1·...·]-2">]</span></code></pre><p>To·change·the·algorithm·list,·there·are·two·options·which·can·be·used·in |
| 196 | <a·href="ssh.html#connect/3">ssh:connect/2,3,4</a>·and·<a·href="ssh.html#daemon/2">ssh:daemon/2,3</a>.·The | 196 | <a·href="ssh.html#connect/3">ssh:connect/2,3,4</a>·and·<a·href="ssh.html#daemon/2">ssh:daemon/2,3</a>.·The |
| 197 | options·could·of·course·be·used·in·all·other·functions·that·initiates | 197 | options·could·of·course·be·used·in·all·other·functions·that·initiates |
| 198 | connections.</p><p>The·options·are | 198 | connections.</p><p>The·options·are |
| 199 | <a·href="ssh.html#t:preferred_algorithms_common_option/0">preferred_algorithms</a>·and | 199 | <a·href="ssh.html#t:preferred_algorithms_common_option/0">preferred_algorithms</a>·and |
| 200 | <a·href="ssh.html#t:modify_algorithms_common_option/0">modify_algorithms</a>.·The·first·one | 200 | <a·href="ssh.html#t:modify_algorithms_common_option/0">modify_algorithms</a>.·The·first·one |
| 201 | replaces·the·default·set,·while·the·latter·modifies·the·default·set.</p><h2·id="replacing-the-default-set-preferred_algorithms"·class="section-heading"> | 201 | replaces·the·default·set,·while·the·latter·modifies·the·default·set.</p><h2·id="replacing-the-default-set-preferred_algorithms"·class="section-heading"> |
| 202 | ··<a·href="#replacing-the-default-set-preferred_algorithms"·class="hover-link"> | 202 | ··<a·href="#replacing-the-default-set-preferred_algorithms"·class="hover-link"> |
| Offset 211, 264 lines modified | Offset 211, 264 lines modified | ||
| 211 | friends·does.</p><h3·id="example-1"·class="section-heading"> | 211 | friends·does.</p><h3·id="example-1"·class="section-heading"> |
| 212 | ··<a·href="#example-1"·class="hover-link"> | 212 | ··<a·href="#example-1"·class="hover-link"> |
| 213 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 213 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 214 | ··</a> | 214 | ··</a> |
| 215 | ··<span·class="text">Example·1</span> | 215 | ··<span·class="text">Example·1</span> |
| 216 | </h3> | 216 | </h3> |
| 217 | <p>Replace·the·kex·algorithms·list·with·the·single·algorithm | 217 | <p>Replace·the·kex·algorithms·list·with·the·single·algorithm |
| 218 | <code·class="inline">'diffie-hellman-group14-sha256'</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">ssh</span><span·class="p">:</span><span·class="nf">chk_algos_opts</span><span·class="p"·data-group-id="5 | 218 | <code·class="inline">'diffie-hellman-group14-sha256'</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">ssh</span><span·class="p">:</span><span·class="nf">chk_algos_opts</span><span·class="p"·data-group-id="5313330182-1">(</span><span·class="w"> |
| 219 | ···············</span><span·class="p"·data-group-id="5 | 219 | ···············</span><span·class="p"·data-group-id="5313330182-2">[</span><span·class="p"·data-group-id="5313330182-3">{</span><span·class="ss">preferred_algorithms</span><span·class="p">,</span><span·class="w"> |
| 220 | ·····················</span><span·class="p"·data-group-id="5 | 220 | ·····················</span><span·class="p"·data-group-id="5313330182-4">[</span><span·class="p"·data-group-id="5313330182-5">{</span><span·class="ss">kex</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="5313330182-6">[</span><span·class="ss">'diffie-hellman-group14-sha256[·...·truncated·by·diffoscope;·len:·103,·SHA:·dbfc77e4bdb01a96c116ca4650dd28cb7e60c27d4b68e3e3c6d81d53670ca90e·...·]-5">}</span><span·class="w"> |
| 221 | ·····················</span><span·class="p"·data-group-id="5 | 221 | ·····················</span><span·class="p"·data-group-id="5313330182-4">]</span><span·class="w"> |
| 222 | ················</span><span·class="p"·data-group-id="5 | 222 | ················</span><span·class="p"·data-group-id="5313330182-3">}</span><span·class="w"> |
| 223 | ··············</span><span·class="p"·data-group-id="5 | 223 | ··············</span><span·class="p"·data-group-id="5313330182-2">]</span><span·class="p"·data-group-id="5313330182-1">)</span><span·class="p">.</span><span·class="w"> |
| 224 | </span><span·class="p"·data-group-id="5 | 224 | </span><span·class="p"·data-group-id="5313330182-7">[</span><span·class="p"·data-group-id="5313330182-8">{</span><span·class="ss">kex</span><span·class="p">,</span><span·class="p"·data-group-id="5313330182-9">[</span><span·class="ss">'diffie-hellman-group14-sha256'</span><span·class="p"[·...·truncated·by·diffoscope;·len:·79,·SHA:·b2cd93446165a5001408e008f5aca4d1b67d696964617daed90ab221fe024284·...·]-8">}</span><span·class="p">,</span><span·class="w"> |
| 225 | ·</span><span·class="p"·data-group-id="5 | 225 | ·</span><span·class="p"·data-group-id="5313330182-10">{</span><span·class="ss">public_key</span><span·class="p">,</span><span·class="p"·data-group-id="5313330182-11">[</span><span·class="ss">'ecdsa-sha2-nistp384'</span><span·class="p">,</span><span·class="ss">'ecdsa-sha2-nistp521'</span><span·class="p">,</span><span·class="w"> |
| 226 | ··············</span><span·class="ss">'ecdsa-sha2-nistp256'</span><span·class="p">,</span><span·class="ss">'ssh-rsa'</span><span·class="p">,</span><span·class="ss">'rsa-sha2-256'</span><span·class="p">,</span><span·class="w"> | 226 | ··············</span><span·class="ss">'ecdsa-sha2-nistp256'</span><span·class="p">,</span><span·class="ss">'ssh-rsa'</span><span·class="p">,</span><span·class="ss">'rsa-sha2-256'</span><span·class="p">,</span><span·class="w"> |
| 227 | ··············</span><span·class="ss">'rsa-sha2-512'</span><span·class="p">,</span><span·class="ss">'ssh-dss'</span><span·class="p"·data-group-id="5 | 227 | ··············</span><span·class="ss">'rsa-sha2-512'</span><span·class="p">,</span><span·class="ss">'ssh-dss'</span><span·class="p"·data-group-id="5313330182-11">]</span><span·class="p"·data-group-id="5313330182-10">}</span><span·class="p">,</span><span·class="w"> |
| 228 | ·</span><span·class="p"·data-group-id="5 | 228 | ·</span><span·class="p"·data-group-id="5313330182-12">{</span><span·class="ss">cipher</span><span·class="p">,</span><span·class="p"·data-group-id="5313330182-13">[</span><span·class="p"·data-group-id="5313330182-14">{</span><span·class="ss">client2server</span><span·class="p">,</span><span·class[·...·truncated·by·diffoscope;·len:·30,·SHA:·42aef97ba8c82afd0b7bf85cb0d3ca6f95839033c049f1870f80b1af0227ff94·...·]-15">[</span><span·class="ss">'aes256-gcm@openssh.com'</span><span·class="p">,</span><span·class="w"> |
| 229 | ··························</span><span·class="ss">'aes256-ctr'</span><span·class="p">,</span><span·class="ss">'aes192-ctr'</span><span·class="p">,</span><span·class="ss">'aes128-gcm@openssh.com'</span><span·class="p">,</span><span·class="w"> | 229 | ··························</span><span·class="ss">'aes256-ctr'</span><span·class="p">,</span><span·class="ss">'aes192-ctr'</span><span·class="p">,</span><span·class="ss">'aes128-gcm@openssh.com'</span><span·class="p">,</span><span·class="w"> |
| 230 | ··························</span><span·class="ss">'aes128-ctr'</span><span·class="p">,</span><span·class="ss">'aes128-cbc'</span><span·class="p">,</span><span·class="ss">'3des-cbc'</span><span·class="p"·data-group-id="5 | 230 | ··························</span><span·class="ss">'aes128-ctr'</span><span·class="p">,</span><span·class="ss">'aes128-cbc'</span><span·class="p">,</span><span·class="ss">'3des-cbc'</span><span·class="p"·data-group-id="5313330182-15">]</span><span·class="p"·data-group-id="5313330182-14">}</span><span·class="p">,</span><span·class="w"> |
| 231 | ··········</span><span·class="p"·data-group-id="5 | 231 | ··········</span><span·class="p"·data-group-id="5313330182-16">{</span><span·class="ss">server2client</span><span·class="p">,</span><span·class="p"·data-group-id="5313330182-17">[</span><span·class="ss">'aes256-gcm@openssh.com'</span><span·class="p">,</span><span·class="ss">'aes256-ctr'</span><span·class="p">,</span><span·class="w"> |
| 232 | ··························</span><span·class="ss">'aes192-ctr'</span><span·class="p">,</span><span·class="ss">'aes128-gcm@openssh.com'</span><span·class="p">,</span><span·class="ss">'aes128-ctr'</span><span·class="p">,</span><span·class="w"> | 232 | ··························</span><span·class="ss">'aes192-ctr'</span><span·class="p">,</span><span·class="ss">'aes128-gcm@openssh.com'</span><span·class="p">,</span><span·class="ss">'aes128-ctr'</span><span·class="p">,</span><span·class="w"> |
| 233 | ··························</span><span·class="ss">'aes128-cbc'</span><span·class="p">,</span><span·class="ss">'3des-cbc'</span><span·class="p"·data-group-id="5 | 233 | ··························</span><span·class="ss">'aes128-cbc'</span><span·class="p">,</span><span·class="ss">'3des-cbc'</span><span·class="p"·data-group-id="5313330182-17">]</span><span·class="p"·data-group-id="5313330182-16">}</span><span·class="p"·data-group-id="5313330182-13">]</span><span·class="p"·data-group-id="5313330182-12">}</span><span·class="p">,</span><span·class="w"> |
| 234 | ·</span><span·class="p"·data-group-id="5 | 234 | ·</span><span·class="p"·data-group-id="5313330182-18">{</span><span·class="ss">mac</span><span·class="p">,</span><span·class="p"·data-group-id="5313330182-19">[</span><span·class="p"·data-group-id="5313330182-20">{</span><span·class="ss">client2server</span><span·class="p">,</span><span·class="p[·...·truncated·by·diffoscope;·len:·27,·SHA:·1f155bee8e43192c6cc9df3b35da29e709b10c91d6e4f7543763e8ff3d2dd5c9·...·]-21">[</span><span·class="ss">'hmac-sha2-256'</span><span·class="p">,</span><span·class="ss">'hmac-sha2-512'</span><span·class="p">,</span><span·class="w"> |
| 235 | ·······················</span><span·class="ss">'hmac-sha1'</span><span·class="p"·data-group-id="5 | 235 | ·······················</span><span·class="ss">'hmac-sha1'</span><span·class="p"·data-group-id="5313330182-21">]</span><span·class="p"·data-group-id="5313330182-20">}</span><span·class="p">,</span><span·class="w"> |
| 236 | ·······</span><span·class="p"·data-group-id="5 | 236 | ·······</span><span·class="p"·data-group-id="5313330182-22">{</span><span·class="ss">server2client</span><span·class="p">,</span><span·class="p"·data-group-id="5313330182-23">[</span><span·class="ss">'hmac-sha2-256'</span><span·class="p">,</span><span·class="ss">'hmac-sha2-512'</span><span·class="p">,</span><span·class="w"> |
| 237 | ·······················</span><span·class="ss">'hmac-sha1'</span><span·class="p"·data-group-id="5 | 237 | ·······················</span><span·class="ss">'hmac-sha1'</span><span·class="p"·data-group-id="5313330182-23">]</span><span·class="p"·data-group-id="5313330182-22">}</span><span·class="p"·data-group-id="5313330182-19">]</span><span·class="p"·data-group-id="5313330182-18">}</span><span·class="p">,</span><span·class="w"> |
| 238 | ·</span><span·class="p"·data-group-id="5745563855-24">{</span><span·class="ss">compression</span><span·class="p">,</span><span·class="p"·data-group-id="5745563855-25">[</span><span·class="p"·data-group-id="5745563855-26">{</span><span·class="ss">client2server</span><span·class="p">,</span><span·class="p"·data-group-id="5745563855-27">[</span><span·class="ss">none</span><span·class="p">,</span><span·class="ss">'zlib@openssh.com'</span><span·class="p">,</span><span·class="ss">zlib</span><span·class="p"·data-group-id="5745563855-27">]</span><span·class="p"·data-group-id="5745563855-26">}</span><span·class="p">,</span><span·class="w"> | ||
| 239 | · | 238 | ·</span><span·class="p"·data-group-id="5313330182-24">{</span><span·class="ss">compression</span><span·class="p">,</span><span·class="p"·data-group-id="5313330182-25">[</span><span·class="p"·data-group-id="5313330182-26">{</span><span·class="ss">client2serv[·...·truncated·by·diffoscope;·len:·389,·SHA:·542653dc4b1101d0f7fa0c2ac734613564e3a985a3bb8e11384875ae1dd46a0c·...·] |
| 239 | ···············</span><span·class="p"·data-group-id="5313330182-28">{</span><span·class="ss">server2client</span><span·class="p">,</span><span·class="p"·data-group-id="5313330182-29">[</span><span·class="ss">none</span><span·class="p">,</span><span·class="ss">'zlib@openssh.com'</span><span·class="p">,</span><span·class="ss">zlib</span><span·class="p"·data-group-id="5313330182-29">]</span><span·class="p"·data-group-id="5313330182-28">}</span><span·class="p"·data-group-id="5313330182-25">]</span><span·class="p"·data-group-id="5313330182-24">}</span><span·class="p"·data-group-id="5313330182-7">]</span></code></pre><p>Note·that·the·unmentioned·lists·(<code·class="inline">public_key</code>,·<code·class="inline">cipher</code>,·<code·class="inline">mac</code>·and | ||
| 240 | <code·class="inline">compression</code>)·are·unchanged.</p><h3·id="example-2"·class="section-heading"> | 240 | <code·class="inline">compression</code>)·are·unchanged.</p><h3·id="example-2"·class="section-heading"> |
| 241 | ··<a·href="#example-2"·class="hover-link"> | 241 | ··<a·href="#example-2"·class="hover-link"> |
| 242 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 242 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 243 | ··</a> | 243 | ··</a> |
| 244 | ··<span·class="text">Example·2</span> | 244 | ··<span·class="text">Example·2</span> |
| 245 | </h3> | 245 | </h3> |
| 246 | <p>In·the·lists·that·are·divided·in·two·for·the·two·directions·(for·example·<code·class="inline">cipher</code>)·it·is | 246 | <p>In·the·lists·that·are·divided·in·two·for·the·two·directions·(for·example·<code·class="inline">cipher</code>)·it·is |
| 247 | possible·to·change·both·directions·at·once:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">2>·</span><span·class="nc">ssh</span><span·class="p">:</span><span·class="nf">chk_algos_opts</span><span·class="p"·data-group-id=" | 247 | possible·to·change·both·directions·at·once:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">2>·</span><span·class="nc">ssh</span><span·class="p">:</span><span·class="nf">chk_algos_opts</span><span·class="p"·data-group-id="3528689193-1">(</span><span·class="w"> |
| 248 | ···············</span><span·class="p"·data-group-id=" | 248 | ···············</span><span·class="p"·data-group-id="3528689193-2">[</span><span·class="p"·data-group-id="3528689193-3">{</span><span·class="ss">preferred_algorithms</span><span·class="p">,</span><span·class="w"> |
| 249 | ·····················</span><span·class="p"·data-group-id=" | 249 | ·····················</span><span·class="p"·data-group-id="3528689193-4">[</span><span·class="p"·data-group-id="3528689193-5">{</span><span·class="ss">cipher</span><span·class="p">,</span><span·class="p"·data-group-id="3528689193-6">[</span><span·class="ss">'aes128-ctr'</span><span·class="p"·data-group-id=[·...·truncated·by·diffoscope;·len:·64,·SHA:·2cd7c278b2cb013db36dea15190e41003bfa4b258f4d67bcd36c4a8fd1e2cf12·...·]-5">}</span><span·class="w"> |
| 250 | ·····················</span><span·class="p"·data-group-id=" | 250 | ·····················</span><span·class="p"·data-group-id="3528689193-4">]</span><span·class="w"> |
| 251 | ················</span><span·class="p"·data-group-id=" | 251 | ················</span><span·class="p"·data-group-id="3528689193-3">}</span><span·class="w"> |
| 252 | ··············</span><span·class="p"·data-group-id=" | 252 | ··············</span><span·class="p"·data-group-id="3528689193-2">]</span><span·class="p"·data-group-id="3528689193-1">)</span><span·class="p">.</span><span·class="w"> |
| 253 | </span><span·class="p"·data-group-id=" | 253 | </span><span·class="p"·data-group-id="3528689193-7">[</span><span·class="p"·data-group-id="3528689193-8">{</span><span·class="ss">kex</span><span·class="p">,</span><span·class="p"·data-group-id="3528689193-9">[</span><span·class="ss">'ecdh-sha2-nistp384'</span><span·class="p">,</span><span·class="ss">'ecdh-sha2-nistp521'</span><span·class="p">,</span><span·class="w"> |
| 254 | ·······</span><span·class="ss">'ecdh-sha2-nistp256'</span><span·class="p">,</span><span·class="ss">'diffie-hellman-group-exchange-sha256'</span><span·class="p">,</span><span·class="w"> | 254 | ·······</span><span·class="ss">'ecdh-sha2-nistp256'</span><span·class="p">,</span><span·class="ss">'diffie-hellman-group-exchange-sha256'</span><span·class="p">,</span><span·class="w"> |
| 255 | ·······</span><span·class="ss">'diffie-hellman-group16-sha512'</span><span·class="p">,</span><span·class="w"> | 255 | ·······</span><span·class="ss">'diffie-hellman-group16-sha512'</span><span·class="p">,</span><span·class="w"> |
| 256 | ·······</span><span·class="ss">'diffie-hellman-group18-sha512'</span><span·class="p">,</span><span·class="w"> | 256 | ·······</span><span·class="ss">'diffie-hellman-group18-sha512'</span><span·class="p">,</span><span·class="w"> |
| 257 | ·······</span><span·class="ss">'diffie-hellman-group14-sha256'</span><span·class="p">,</span><span·class="w"> | 257 | ·······</span><span·class="ss">'diffie-hellman-group14-sha256'</span><span·class="p">,</span><span·class="w"> |
| 258 | ·······</span><span·class="ss">'diffie-hellman-group14-sha1'</span><span·class="p">,</span><span·class="w"> | 258 | ·······</span><span·class="ss">'diffie-hellman-group14-sha1'</span><span·class="p">,</span><span·class="w"> |
| 259 | ·······</span><span·class="ss">'diffie-hellman-group-exchange-sha1'</span><span·class="p"·data-group-id=" | 259 | ·······</span><span·class="ss">'diffie-hellman-group-exchange-sha1'</span><span·class="p"·data-group-id="3528689193-9">]</span><span·class="p"·data-group-id="3528689193-8">}</span><span·class="p">,</span><span·class="w"> |
| 260 | ·</span><span·class="p"·data-group-id=" | 260 | ·</span><span·class="p"·data-group-id="3528689193-10">{</span><span·class="ss">public_key</span><span·class="p">,</span><span·class="p"·data-group-id="3528689193-11">[</span><span·class="ss">'ecdsa-sha2-nistp384'</span><span·class="p">,</span><span·class="ss">'ecdsa-sha2-nistp521'</span><span·class="p">,</span><span·class="w"> |
| 261 | ··············</span><span·class="ss">'ecdsa-sha2-nistp256'</span><span·class="p">,</span><span·class="ss">'ssh-rsa'</span><span·class="p">,</span><span·class="ss">'rsa-sha2-256'</span><span·class="p">,</span><span·class="w"> | 261 | ··············</span><span·class="ss">'ecdsa-sha2-nistp256'</span><span·class="p">,</span><span·class="ss">'ssh-rsa'</span><span·class="p">,</span><span·class="ss">'rsa-sha2-256'</span><span·class="p">,</span><span·class="w"> |
| 262 | ··············</span><span·class="ss">'rsa-sha2-512'</span><span·class="p">,</span><span·class="ss">'ssh-dss'</span><span·class="p"·data-group-id=" | 262 | ··············</span><span·class="ss">'rsa-sha2-512'</span><span·class="p">,</span><span·class="ss">'ssh-dss'</span><span·class="p"·data-group-id="3528689193-11">]</span><span·class="p"·data-group-id="3528689193-10">}</span><span·class="p">,</span><span·class="w"> |
| 263 | ·</span><span·class="p"·data-group-id=" | 263 | ·</span><span·class="p"·data-group-id="3528689193-12">{</span><span·class="ss">cipher</span><span·class="p">,</span><span·class="p"·data-group-id="3528689193-13">[</span><span·class="p"·data-group-id="3528689193-14">{</span><span·class="ss">client2server</span><span·class="p">,</span><span·clas[·...·truncated·by·diffoscope;·len:·183,·SHA:·5f0c6ad5425b46387d68040b4477a8bffc0ae523178ce84a6c29b9b192d437a9·...·]-14">}</span><span·class="p">,</span><span·class="w"> |
| 264 | ··········</span><span·class="p"·data-group-id=" | 264 | ··········</span><span·class="p"·data-group-id="3528689193-16">{</span><span·class="ss">server2client</span><span·class="p">,</span><span·class="p"·data-group-id="3528689193-17">[</span><span·class="ss">'aes128-ctr'</span><span·class="p"·data-group-id="3528689193-17">]</span><span·class="p"·data[·...·truncated·by·diffoscope;·len:·129,·SHA:·34fd7e30715f4d58013ae3d620255336d99f7278c5202b6e1ec6a3fcf24c6086·...·]-12">}</span><span·class="p">,</span><span·class="w"> |
| 265 | ·</span><span·class="p"·data-group-id=" | 265 | ·</span><span·class="p"·data-group-id="3528689193-18">{</span><span·class="ss">mac</span><span·class="p">,</span><span·class="p"·data-group-id="3528689193-19">[</span><span·class="p"·data-group-id="3528689193-20">{</span><span·class="ss">client2server</span><span·class="p">,</span><span·class="[·...·truncated·by·diffoscope;·len:·28,·SHA:·73ac001d0d1b93022a45d305abed357bff935313890ccef4d3b8cb72713a8f1a·...·]-21">[</span><span·class="ss">'hmac-sha2-256'</span><span·class="p">,</span><span·class="ss">'hmac-sha2-512'</span><span·class="p">,</span><span·class="w"> |
| 266 | ·······················</span><span·class="ss">'hmac-sha1'</span><span·class="p"·data-group-id=" | 266 | ·······················</span><span·class="ss">'hmac-sha1'</span><span·class="p"·data-group-id="3528689193-21">]</span><span·class="p"·data-group-id="3528689193-20">}</span><span·class="p">,</span><span·class="w"> |
| 267 | ·······</span><span·class="p"·data-group-id=" | 267 | ·······</span><span·class="p"·data-group-id="3528689193-22">{</span><span·class="ss">server2client</span><span·class="p">,</span><span·class="p"·data-group-id="3528689193-23">[</span><span·class="ss">'hmac-sha2-256'</span><span·class="p">,</span><span·class="ss">'hmac-sha2-512'</span><span·class="p">,</span><span·class="w"> |
| 268 | ·······················</span><span·class="ss">'hmac-sha1'</span><span·class="p"·data-group-id=" | 268 | ·······················</span><span·class="ss">'hmac-sha1'</span><span·class="p"·data-group-id="3528689193-23">]</span><span·class="p"·data-group-id="3528689193-22">}</span><span·class="p"·data-group-id="3528689193-19">]</span><span·class="p"·data-group-id="3528689193-18">}</span><span·class="p">,</span><span·class="w"> |
| 269 | ·</span><span·class="p"·data-group-id="0595627984-24">{</span><span·class="ss">compression</span><span·class="p">,</span><span·class="p"·data-group-id="0595627984-25">[</span><span·class="p"·data-group-id="0595627984-26">{</span><span·class="ss">client2server</span><span·class="p">,</span><span·class="p"·data-group-id="0595627984-27">[</span><span·class="ss">none</span><span·class="p">,</span><span·class="ss">'zlib@openssh.com'</span><span·class="p">,</span><span·class="ss">zlib</span><span·class="p"·data-group-id="0595627984-27">]</span><span·class="p"·data-group-id="0595627984-26">}</span><span·class="p">,</span><span·class="w"> | ||
| 270 | · | 269 | ·</span><span·class="p"·data-group-id="3528689193-24">{</span><span·class="ss">compression</span><span·class="p">,</span><span·class="p"·data-group-id="3528689193-25">[</span><span·class="p"·data-group-id="3528689193-26">{</span><span·class="ss">client2serv[·...·truncated·by·diffoscope;·len:·389,·SHA:·61ccd3f891593f1a6bf4151485b77a9ab212c434830fde8c45b6510ed3b99966·...·] |
| 270 | ···············</span><span·class="p"·data-group-id="3528689193-28">{</span><span·class="ss">server2client</span><span·class="p">,</span><span·class="p"·data-group-id="3528689193-29">[</span><span·class="ss">none</span><span·class="p">,</span><span·class="ss">'zlib@openssh.com'</span><span·class="p">,</span><span·class="ss">zlib</span><span·class="p"·data-group-id="3528689193-29">]</span><span·class="p"·data-group-id="3528689193-28">}</span><span·class="p"·data-group-id="3528689193-25">]</span><span·class="p"·data-group-id="3528689193-24">}</span><span·class="p"·data-group-id="3528689193-7">]</span></code></pre><p>Note·that·both·lists·in·<code·class="inline">cipher</code>·has·been·changed·to·the·provided·value | ||
| 271 | (<code·class="inline">'aes128-ctr'</code>).</p><h3·id="example-3"·class="section-heading"> | 271 | (<code·class="inline">'aes128-ctr'</code>).</p><h3·id="example-3"·class="section-heading"> |
| 272 | ··<a·href="#example-3"·class="hover-link"> | 272 | ··<a·href="#example-3"·class="hover-link"> |
| 273 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 273 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 274 | ··</a> | 274 | ··</a> |
| 275 | ··<span·class="text">Example·3</span> | 275 | ··<span·class="text">Example·3</span> |
| 276 | </h3> | 276 | </h3> |
| 277 | <p>In·the·lists·that·are·divided·in·two·for·the·two·directions·(for·example·<code·class="inline">cipher</code>)·it·is | 277 | <p>In·the·lists·that·are·divided·in·two·for·the·two·directions·(for·example·<code·class="inline">cipher</code>)·it·is |
| 278 | possible·to·change·only·one·of·the·directions:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">3>·</span><span·class="nc">ssh</span><span·class="p">:</span><span·class="nf">chk_algos_opts</span><span·class="p"·data-group-id=" | 278 | possible·to·change·only·one·of·the·directions:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">3>·</span><span·class="nc">ssh</span><span·class="p">:</span><span·class="nf">chk_algos_opts</span><span·class="p"·data-group-id="9528514865-1">(</span><span·class="w"> |
| 279 | ···············</span><span·class="p"·data-group-id=" | 279 | ···············</span><span·class="p"·data-group-id="9528514865-2">[</span><span·class="p"·data-group-id="9528514865-3">{</span><span·class="ss">preferred_algorithms</span><span·class="p">,</span><span·class="w"> |
| 280 | ·····················</span><span·class="p"·data-group-id=" | 280 | ·····················</span><span·class="p"·data-group-id="9528514865-4">[</span><span·class="p"·data-group-id="9528514865-5">{</span><span·class="ss">cipher</span><span·class="p">,</span><span·class="p"·data-group-id="9528514865-6">[</span><span·class="p"·data-group-id="9528514865-7">{</span><span·class="ss">clie[·...·truncated·by·diffoscope;·len:·337,·SHA:·789be16dc2b3fff00c206ec3115cae3bc166e50d26708356fd082410cfd078c3·...·]-5">}</span><span·class="w"> |
| 281 | ·····················</span><span·class="p"·data-group-id=" | 281 | ·····················</span><span·class="p"·data-group-id="9528514865-4">]</span><span·class="w"> |
| 282 | ················</span><span·class="p"·data-group-id=" | 282 | ················</span><span·class="p"·data-group-id="9528514865-3">}</span><span·class="w"> |
| 283 | ··············</span><span·class="p"·data-group-id=" | 283 | ··············</span><span·class="p"·data-group-id="9528514865-2">]</span><span·class="p"·data-group-id="9528514865-1">)</span><span·class="p">.</span><span·class="w"> |
| 284 | </span><span·class="p"·data-group-id=" | 284 | </span><span·class="p"·data-group-id="9528514865-9">[</span><span·class="p"·data-group-id="9528514865-10">{</span><span·class="ss">kex</span><span·class="p">,</span><span·class="p"·data-group-id="9528514865-11">[</span><span·class="ss">'ecdh-sha2-nistp384'</span><span·class="p">,</span><span·class="ss">'ecdh-sha2-nistp521'</span><span·class="p">,</span><span·class="w"> |
| 285 | ·······</span><span·class="ss">'ecdh-sha2-nistp256'</span><span·class="p">,</span><span·class="ss">'diffie-hellman-group-exchange-sha256'</span><span·class="p">,</span><span·class="w"> | 285 | ·······</span><span·class="ss">'ecdh-sha2-nistp256'</span><span·class="p">,</span><span·class="ss">'diffie-hellman-group-exchange-sha256'</span><span·class="p">,</span><span·class="w"> |
| 286 | ·······</span><span·class="ss">'diffie-hellman-group16-sha512'</span><span·class="p">,</span><span·class="w"> | 286 | ·······</span><span·class="ss">'diffie-hellman-group16-sha512'</span><span·class="p">,</span><span·class="w"> |
| 287 | ·······</span><span·class="ss">'diffie-hellman-group18-sha512'</span><span·class="p">,</span><span·class="w"> | 287 | ·······</span><span·class="ss">'diffie-hellman-group18-sha512'</span><span·class="p">,</span><span·class="w"> |
| 288 | ·······</span><span·class="ss">'diffie-hellman-group14-sha256'</span><span·class="p">,</span><span·class="w"> | 288 | ·······</span><span·class="ss">'diffie-hellman-group14-sha256'</span><span·class="p">,</span><span·class="w"> |
| 289 | ·······</span><span·class="ss">'diffie-hellman-group14-sha1'</span><span·class="p">,</span><span·class="w"> | 289 | ·······</span><span·class="ss">'diffie-hellman-group14-sha1'</span><span·class="p">,</span><span·class="w"> |
| 290 | ·······</span><span·class="ss">'diffie-hellman-group-exchange-sha1'</span><span·class="p"·data-group-id=" | 290 | ·······</span><span·class="ss">'diffie-hellman-group-exchange-sha1'</span><span·class="p"·data-group-id="9528514865-11">]</span><span·class="p"·data-group-id="9528514865-10">}</span><span·class="p">,</span><span·class="w"> |
| 291 | ·</span><span·class="p"·data-group-id=" | 291 | ·</span><span·class="p"·data-group-id="9528514865-12">{</span><span·class="ss">public_key</span><span·class="p">,</span><span·class="p"·data-group-id="9528514865-13">[</span><span·class="ss">'ecdsa-sha2-nistp384'</span><span·class="p">,</span><span·class="ss">'ecdsa-sha2-nistp521'</span><span·class="p">,</span><span·class="w"> |
| 292 | ··············</span><span·class="ss">'ecdsa-sha2-nistp256'</span><span·class="p">,</span><span·class="ss">'ssh-rsa'</span><span·class="p">,</span><span·class="ss">'rsa-sha2-256'</span><span·class="p">,</span><span·class="w"> | 292 | ··············</span><span·class="ss">'ecdsa-sha2-nistp256'</span><span·class="p">,</span><span·class="ss">'ssh-rsa'</span><span·class="p">,</span><span·class="ss">'rsa-sha2-256'</span><span·class="p">,</span><span·class="w"> |
| 293 | ··············</span><span·class="ss">'rsa-sha2-512'</span><span·class="p">,</span><span·class="ss">'ssh-dss'</span><span·class="p"·data-group-id=" | 293 | ··············</span><span·class="ss">'rsa-sha2-512'</span><span·class="p">,</span><span·class="ss">'ssh-dss'</span><span·class="p"·data-group-id="9528514865-13">]</span><span·class="p"·data-group-id="9528514865-12">}</span><span·class="p">,</span><span·class="w"> |
| 294 | ·</span><span·class="p"·data-group-id=" | 294 | ·</span><span·class="p"·data-group-id="9528514865-14">{</span><span·class="ss">cipher</span><span·class="p">,</span><span·class="p"·data-group-id="9528514865-15">[</span><span·class="p"·data-group-id="9528514865-16">{</span><span·class="ss">client2server</span><span·class="p">,</span><span·clas[·...·truncated·by·diffoscope;·len:·183,·SHA:·bc92e6b7ad3cff3e512819a284f4ff2ddf32b24ccd6ba572cfa3982446633e0e·...·]-16">}</span><span·class="p">,</span><span·class="w"> |
| 295 | ··········</span><span·class="p"·data-group-id=" | 295 | ··········</span><span·class="p"·data-group-id="9528514865-18">{</span><span·class="ss">server2client</span><span·class="p">,</span><span·class="p"·data-group-id="9528514865-19">[</span><span·class="ss">'aes256-gcm@openssh.com'</span><span·class="p">,</span><span·class="ss">'aes256-ctr'</span><span·class="p">,</span><span·class="w"> |
| 296 | ··························</span><span·class="ss">'aes192-ctr'</span><span·class="p">,</span><span·class="ss">'aes128-gcm@openssh.com'</span><span·class="p">,</span><span·class="ss">'aes128-ctr'</span><span·class="p">,</span><span·class="w"> | 296 | ··························</span><span·class="ss">'aes192-ctr'</span><span·class="p">,</span><span·class="ss">'aes128-gcm@openssh.com'</span><span·class="p">,</span><span·class="ss">'aes128-ctr'</span><span·class="p">,</span><span·class="w"> |
| 297 | ··························</span><span·class="ss">'aes128-cbc'</span><span·class="p">,</span><span·class="ss">'3des-cbc'</span><span·class="p"·data-group-id=" | 297 | ··························</span><span·class="ss">'aes128-cbc'</span><span·class="p">,</span><span·class="ss">'3des-cbc'</span><span·class="p"·data-group-id="9528514865-19">]</span><span·class="p"·data-group-id="9528514865-18">}</span><span·class="p"·data-group-id="9528514865-15">]</span><span·class="p"·data-group-id="9528514865-14">}</span><span·class="p">,</span><span·class="w"> |
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| 210 | ··<span·class="text">Verifying·the·remote·client·in·a·daemon·(server)</span> | 210 | ··<span·class="text">Verifying·the·remote·client·in·a·daemon·(server)</span> |
| 211 | </h2> | 211 | </h2> |
| 212 | <ul><li><p><strong>Password·checking</strong>·-·The·default·password·checking·is·with·the·list·in·the | 212 | <ul><li><p><strong>Password·checking</strong>·-·The·default·password·checking·is·with·the·list·in·the |
| 213 | <a·href="ssh.html#option-user_passwords">user_passwords</a>·option·in·the·SSH·daemon.·It | 213 | <a·href="ssh.html#option-user_passwords">user_passwords</a>·option·in·the·SSH·daemon.·It |
| 214 | could·be·replaced·with·a·<a·href="ssh.html#option-pwdfun">pwdfun</a>·plugin.·The·arity | 214 | could·be·replaced·with·a·<a·href="ssh.html#option-pwdfun">pwdfun</a>·plugin.·The·arity |
| 215 | four·variant·(<a·href="ssh.html#t:pwdfun_4/0"><code·class="inline">pwdfun_4()</code></a>)·can·also·be·used·for | 215 | four·variant·(<a·href="ssh.html#t:pwdfun_4/0"><code·class="inline">pwdfun_4()</code></a>)·can·also·be·used·for |
| 216 | introducing·delays·after·failed·password·checking·attempts.·Here·is·a·simple | 216 | introducing·delays·after·failed·password·checking·attempts.·Here·is·a·simple |
| 217 | example·of·such·a·pwdfun:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">fun</span><span·class="p"·data-group-id=" | 217 | example·of·such·a·pwdfun:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">fun</span><span·class="p"·data-group-id="9686247382-1">(</span><span·class="n">User</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Password</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="n">PeerAddress</span><span·class="p">,</spa[·...·truncated·by·diffoscope;·len:·95,·SHA:·609e8dd75315aadc1738d07b5ffe04de849f30875481febfea82c9b4c63628ea·...·]-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 218 | ········</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">member</span><span·class="p"·data-group-id=" | 218 | ········</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">member</span><span·class="p"·data-group-id="9686247382-2">(</span><span·class="p"·data-group-id="9686247382-3">{</span><span·class="n">User</span><span·class="p">,</span><span·class="n">Password</span><span·class="p"·data-group-id="9686247382-3">}</span><span·class="p">,</span><span·class="w">·</spa[·...·truncated·by·diffoscope;·len:·185,·SHA:·3dbff0ac8add86bb2cb577cbec86daac057c203c7cc3ee9b481bd47146e7969c·...·]-2">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 219 | ············</span><span·class="ss">true</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 219 | ············</span><span·class="ss">true</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 220 | ················</span><span·class="p"·data-group-id=" | 220 | ················</span><span·class="p"·data-group-id="9686247382-5">{</span><span·class="ss">true</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">undefined</span><span·class="p"·data-group-id="9686247382-5">}</span><span·class="p">;</span><span·class="w">·</span><span·class="c1">%·Reset·delay·time</span><span·class="w"> |
| 221 | ············</span><span·class="ss">false</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><span·class="n">State</span><span·class="w">·</span><span·class="o">==</span><span·class="w">·</span><span·class="ss">undefined</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 221 | ············</span><span·class="ss">false</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><span·class="n">State</span><span·class="w">·</span><span·class="o">==</span><span·class="w">·</span><span·class="ss">undefined</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 222 | ················</span><span·class="nc">timer</span><span·class="p">:</span><span·class="nf">sleep</span><span·class="p"·data-group-id=" | 222 | ················</span><span·class="nc">timer</span><span·class="p">:</span><span·class="nf">sleep</span><span·class="p"·data-group-id="9686247382-6">(</span><span·class="mi">1000</span><span·class="p"·data-group-id="9686247382-6">)</span><span·class="p">,</span><span·class="w"> |
| 223 | ················</span><span·class="p"·data-group-id=" | 223 | ················</span><span·class="p"·data-group-id="9686247382-7">{</span><span·class="ss">false</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">2000</span><span·class="p"·data-group-id="9686247382-7">}</span><span·class="p">;</span><span·class="w">·</span><span·class="c1">%·Next·delay·is·2000·ms</span><span·class="w"> |
| 224 | ············</span><span·class="ss">false</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><span·class="nf">is_integer</span><span·class="p"·data-group-id=" | 224 | ············</span><span·class="ss">false</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><span·class="nf">is_integer</span><span·class="p"·data-group-id="9686247382-8">(</span><span·class="n">State</span><span·class="p"·data-group-id="9686247382-8">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 225 | ················</span><span·class="nc">timer</span><span·class="p">:</span><span·class="nf">sleep</span><span·class="p"·data-group-id=" | 225 | ················</span><span·class="nc">timer</span><span·class="p">:</span><span·class="nf">sleep</span><span·class="p"·data-group-id="9686247382-9">(</span><span·class="n">State</span><span·class="p"·data-group-id="9686247382-9">)</span><span·class="p">,</span><span·class="w"> |
| 226 | ················</span><span·class="p"·data-group-id=" | 226 | ················</span><span·class="p"·data-group-id="9686247382-10">{</span><span·class="ss">false</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">2</span><span·class="o">*</span><span·class="n">State</span><span·class="p"·data-group-id="9686247382-10">}</span><span·class="w">·</span><span·class="c1">%·Double·the·delay·for·each·failure</span><span·class="w"> |
| 227 | ········</span><span·class="k">end</span><span·class="w"> | 227 | ········</span><span·class="k">end</span><span·class="w"> |
| 228 | </span><span·class="k">end</span><span·class="p">.</span></code></pre><p>If·a·public·key·is·used·for·logging·in,·there·is·normally·no·checking·of·the | 228 | </span><span·class="k">end</span><span·class="p">.</span></code></pre><p>If·a·public·key·is·used·for·logging·in,·there·is·normally·no·checking·of·the |
| 229 | user·name.·It·could·be·enabled·by·setting·the·option | 229 | user·name.·It·could·be·enabled·by·setting·the·option |
| 230 | <a·href="ssh.html#option-pk_check_user"><code·class="inline">pk_check_user</code></a>·to·<code·class="inline">true</code>.·In·that·case·the | 230 | <a·href="ssh.html#option-pk_check_user"><code·class="inline">pk_check_user</code></a>·to·<code·class="inline">true</code>.·In·that·case·the |
| 231 | pwdfun·will·get·the·atom·<code·class="inline">pubkey</code>·in·the·password·argument.</p></li></ul><h2·id="hardening-in-the-cryptographic-area"·class="section-heading"> | 231 | pwdfun·will·get·the·atom·<code·class="inline">pubkey</code>·in·the·password·argument.</p></li></ul><h2·id="hardening-in-the-cryptographic-area"·class="section-heading"> |
| 232 | ··<a·href="#hardening-in-the-cryptographic-area"·class="hover-link"> | 232 | ··<a·href="#hardening-in-the-cryptographic-area"·class="hover-link"> |
| 233 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 233 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 288, 15 lines modified | Offset 288, 15 lines modified | ||
| 288 | ··<span·class="text">The·id·string</span> | 288 | ··<span·class="text">The·id·string</span> |
| 289 | </h3> | 289 | </h3> |
| 290 | <p>One·way·to·reduce·the·risk·of·intrusion·is·to·not·convey·which·software·and | 290 | <p>One·way·to·reduce·the·risk·of·intrusion·is·to·not·convey·which·software·and |
| 291 | which·version·the·intruder·is·connected·to.·This·limits·the·risk·of·an·intruder | 291 | which·version·the·intruder·is·connected·to.·This·limits·the·risk·of·an·intruder |
| 292 | exploiting·known·faults·or·peculiarities·learned·by·reading·the·public·code.</p><p>Each·SSH·client·or·daemon·presents·themselves·to·each·other·with·brand·and | 292 | exploiting·known·faults·or·peculiarities·learned·by·reading·the·public·code.</p><p>Each·SSH·client·or·daemon·presents·themselves·to·each·other·with·brand·and |
| 293 | version.·This·may·look·like</p><pre><code·class="text">SSH-2.0-Erlang/4.10</code></pre><p>or</p><pre><code·class="text">SSH-2.0-OpenSSH_7.6p1·Ubuntu-4ubuntu0.3</code></pre><p>This·brand·and·version·may·be·changed·with·the·option | 293 | version.·This·may·look·like</p><pre><code·class="text">SSH-2.0-Erlang/4.10</code></pre><p>or</p><pre><code·class="text">SSH-2.0-OpenSSH_7.6p1·Ubuntu-4ubuntu0.3</code></pre><p>This·brand·and·version·may·be·changed·with·the·option |
| 294 | <a·href="ssh.html#t:id_string_common_option/0">id_string</a>.·We·start·a·daemon·with·that | 294 | <a·href="ssh.html#t:id_string_common_option/0">id_string</a>.·We·start·a·daemon·with·that |
| 295 | option:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">»</span><span·class="nc">ssh</span><span·class="p">:</span><span·class="nf">daemon</span><span·class="p"·data-group-id=" | 295 | option:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">»</span><span·class="nc">ssh</span><span·class="p">:</span><span·class="nf">daemon</span><span·class="p"·data-group-id="3064076635-1">(</span><span·class="mi">1234</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3064076635-2">[</span><span·class="p"·data-group-id="3064076635-3">{</span><span·class="ss">id_string</span><span·class="p">,</[·...·truncated·by·diffoscope;·len:·338,·SHA:·dcbd3b631dd5ff35a4d61391efcff4c8914d8956db63bf9d46c38f9a7dd2a3e7·...·]5-1">)</span><span·class="p">.</span></code></pre><p>and·the·daemon·will·present·itself·as:</p><pre><code·class="text">SSH-2.0-hi·there</code></pre><p>It·is·possible·to·replace·the·string·with·one·randomly·generated·for·each |
| 296 | connection·attempt.·See·the·reference·manual·for | 296 | connection·attempt.·See·the·reference·manual·for |
| 297 | <a·href="ssh.html#t:id_string_common_option/0">id_string</a>.</p><h2·id="client-connection-options"·class="section-heading"> | 297 | <a·href="ssh.html#t:id_string_common_option/0">id_string</a>.</p><h2·id="client-connection-options"·class="section-heading"> |
| 298 | ··<a·href="#client-connection-options"·class="hover-link"> | 298 | ··<a·href="#client-connection-options"·class="hover-link"> |
| 299 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 299 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 300 | ··</a> | 300 | ··</a> |
| 301 | ··<span·class="text">Client·connection·options</span> | 301 | ··<span·class="text">Client·connection·options</span> |
| 302 | </h2> | 302 | </h2> |
| Offset 342, 15 lines modified | Offset 342, 15 lines modified | ||
| 342 | ······<p·class="built-using"> | 342 | ······<p·class="built-using"> |
| 343 | ········Built·using | 343 | ········Built·using |
| 344 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 344 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 345 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 345 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 346 | ······</p> | 346 | ······</p> |
| 347 | <p>Copyright·©·1996-202 | 347 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 348 | ····</footer> | 348 | ····</footer> |
| 349 | ··</div> | 349 | ··</div> |
| 350 | </main> | 350 | </main> |
| 351 | </div> | 351 | </div> |
| 352 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 352 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 353 | ··<script> | 353 | ··<script> |
| 354 | ··let·initialized·=·false; | 354 | ··let·initialized·=·false; |
| Offset 268, 15 lines modified | Offset 268, 15 lines modified | ||
| 268 | ······<p·class="built-using"> | 268 | ······<p·class="built-using"> |
| 269 | ········Built·using | 269 | ········Built·using |
| 270 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 270 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 271 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 271 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 272 | ······</p> | 272 | ······</p> |
| 273 | <p>Copyright·©·1996-202 | 273 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 274 | ····</footer> | 274 | ····</footer> |
| 275 | ··</div> | 275 | ··</div> |
| 276 | </main> | 276 | </main> |
| 277 | </div> | 277 | </div> |
| 278 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 278 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 279 | ··<script> | 279 | ··<script> |
| 280 | ··let·initialized·=·false; | 280 | ··let·initialized·=·false; |
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| 3511 | ······<p·class="built-using"> | 3511 | ······<p·class="built-using"> |
| 3512 | ········Built·using | 3512 | ········Built·using |
| 3513 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 3513 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 3514 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 3514 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 3515 | ······</p> | 3515 | ······</p> |
| 3516 | <p>Copyright·©·1996-202 | 3516 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 3517 | ····</footer> | 3517 | ····</footer> |
| 3518 | ··</div> | 3518 | ··</div> |
| 3519 | </main> | 3519 | </main> |
| 3520 | </div> | 3520 | </div> |
| 3521 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 3521 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 3522 | ··<script> | 3522 | ··<script> |
| 3523 | ··let·initialized·=·false; | 3523 | ··let·initialized·=·false; |
| Offset 141, 15 lines modified | Offset 141, 15 lines modified | ||
| 141 | ······<p·class="built-using"> | 141 | ······<p·class="built-using"> |
| 142 | ········Built·using | 142 | ········Built·using |
| 143 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 143 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 144 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 144 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 145 | ······</p> | 145 | ······</p> |
| 146 | <p>Copyright·©·1996-202 | 146 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 147 | ····</footer> | 147 | ····</footer> |
| 148 | ··</div> | 148 | ··</div> |
| 149 | </main> | 149 | </main> |
| 150 | </div> | 150 | </div> |
| 151 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 151 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 152 | ··<script> | 152 | ··<script> |
| 153 | ··let·initialized·=·false; | 153 | ··let·initialized·=·false; |
| Offset 2285, 22 lines modified | Offset 2285, 22 lines modified | ||
| 2285 | ··········<pre·translate="no"><span·class="attribute">-type</span>·double_algs(AlgType)·::·[{client2server,·[AlgType]}·|·{server2client,·[AlgType]}]·|·[AlgType].</pre> | 2285 | ··········<pre·translate="no"><span·class="attribute">-type</span>·double_algs(AlgType)·::·[{client2server,·[AlgType]}·|·{server2client,·[AlgType]}]·|·[AlgType].</pre> |
| 2286 | ······</div> | 2286 | ······</div> |
| 2287 | <p>List·of·algorithms·to·use·in·the·algorithm·negotiation.·The·default | 2287 | <p>List·of·algorithms·to·use·in·the·algorithm·negotiation.·The·default |
| 2288 | <a·href="#t:algs_list/0"><code·class="inline">algs_list/0</code></a>·can·be·obtained·from·<a·href="#default_algorithms/0"><code·class="inline">default_algorithms/0</code></a>.</p><p>If·an·alg_entry()·is·missing·in·the·algs_list(),·the·default·value·is·used·for | 2288 | <a·href="#t:algs_list/0"><code·class="inline">algs_list/0</code></a>·can·be·obtained·from·<a·href="#default_algorithms/0"><code·class="inline">default_algorithms/0</code></a>.</p><p>If·an·alg_entry()·is·missing·in·the·algs_list(),·the·default·value·is·used·for |
| 2289 | that·entry.</p><p>Here·is·an·example·of·this·option:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">» ··</span><span·class="p"·data-group-id=" | 2289 | that·entry.</p><p>Here·is·an·example·of·this·option:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">» ··</span><span·class="p"·data-group-id="7904048969-1">{</span><span·class="ss">preferred_algorithms</span><span·class="p">,</span><span·class="w"> |
| 2290 | » ··</span><span·class="p"·data-group-id=" | 2290 | » ··</span><span·class="p"·data-group-id="7904048969-2">[</span><span·class="p"·data-group-id="7904048969-3">{</span><span·class="ss">public_key</span><span·class="p">,</span><span·class="p"·data-group-id="7904048969-4">[</span><span·class="ss">'ssh-rsa'</span><span·class="p">,</span><span[·...·truncated·by·diffoscope;·len:·130,·SHA:·eb515b67d62ddc06af15ede4b4b4181cc0f7125fefc82065c91726c07c2e941a·...·]-3">}</span><span·class="p">,</span><span·class="w"> |
| 2291 | » ··</span><span·class="p"·data-group-id=" | 2291 | » ··</span><span·class="p"·data-group-id="7904048969-5">{</span><span·class="ss">cipher</span><span·class="p">,</span><span·class="p"·data-group-id="7904048969-6">[</span><span·class="p"·data-group-id="7904048969-7">{</span><span·class="ss">client2server</span><span·class="p">,</span><span·class="[·...·truncated·by·diffoscope;·len:·178,·SHA:·a5b53889b26a4124e3d86b8ee7681feeb30b4fda5016b5ce7359c4af5544b25f·...·]-7">}</span><span·class="p">,</span><span·class="w"> |
| 2292 | ··········</span><span·class="p"·data-group-id=" | 2292 | ··········</span><span·class="p"·data-group-id="7904048969-9">{</span><span·class="ss">server2client</span><span·class="p">,</span><span·class="p"·data-group-id="7904048969-10">[</span><span·class="ss">'aes128-cbc'</span><span·class="p">,</span><span·class="ss">'3des-cbc'</span><span·cla[·...·truncated·by·diffoscope;·len:·192,·SHA:·1bc24ce09c6d4a94bc155cc1bbef7c7e86b5f730362c5d395e027d69610b2b34·...·]-5">}</span><span·class="p">,</span><span·class="w"> |
| 2293 | » ··</span><span·class="p"·data-group-id=" | 2293 | » ··</span><span·class="p"·data-group-id="7904048969-11">{</span><span·class="ss">mac</span><span·class="p">,</span><span·class="p"·data-group-id="7904048969-12">[</span><span·class="ss">'hmac-sha2-256'</span><span·class="p">,</span><span·class="ss">'hmac-sha1'</span><span·class="p[·...·truncated·by·diffoscope;·len:·81,·SHA:·310e0ab24cf0f9c32534729ec9002d6d1b77d061adf932a6f3f6ee91d8a032e5·...·]-11">}</span><span·class="p">,</span><span·class="w"> |
| 2294 | » ··</span><span·class="p"·data-group-id=" | 2294 | » ··</span><span·class="p"·data-group-id="7904048969-13">{</span><span·class="ss">compression</span><span·class="p">,</span><span·class="p"·data-group-id="7904048969-14">[</span><span·class="ss">none</span><span·class="p">,</span><span·class="ss">zlib</span><span·class="p"·data-group-id="790404896[·...·truncated·by·diffoscope;·len:·55,·SHA:·c20fe42f9f554ad9ab6acf7617d78d5fa53a7746efad48fd430c06ca5d491fa7·...·]-13">}</span><span·class="w"> |
| 2295 | » ··</span><span·class="p"·data-group-id=" | 2295 | » ··</span><span·class="p"·data-group-id="7904048969-2">]</span><span·class="w"> |
| 2296 | » ··</span><span·class="p"·data-group-id=" | 2296 | » ··</span><span·class="p"·data-group-id="7904048969-1">}</span></code></pre><p>The·example·specifies·different·algorithms·in·the·two·directions·(client2server |
| 2297 | and·server2client),·for·cipher·but·specifies·the·same·algorithms·for·mac·and | 2297 | and·server2client),·for·cipher·but·specifies·the·same·algorithms·for·mac·and |
| 2298 | compression·in·both·directions.·The·kex·(key·exchange)·is·implicit·but | 2298 | compression·in·both·directions.·The·kex·(key·exchange)·is·implicit·but |
| 2299 | public_key·is·set·explicitly.</p><p>For·background·and·more·examples·see·the | 2299 | public_key·is·set·explicitly.</p><p>For·background·and·more·examples·see·the |
| 2300 | <a·href="configure_algos.html#introduction">User's·Guide</a>.</p><p>If·an·algorithm·name·occurs·more·than·once·in·a·list,·the·behaviour·is | 2300 | <a·href="configure_algos.html#introduction">User's·Guide</a>.</p><p>If·an·algorithm·name·occurs·more·than·once·in·a·list,·the·behaviour·is |
| 2301 | undefined.·The·tags·in·the·property·lists·are·also·assumed·to·occur·at·most·one | 2301 | undefined.·The·tags·in·the·property·lists·are·also·assumed·to·occur·at·most·one |
| 2302 | time.</p><section·role="note"·class="admonition·warning"><h4·class="admonition-title·warning">Warning</h4><p>Changing·the·values·can·make·a·connection·less·secure.·Do·not·change·unless | 2302 | time.</p><section·role="note"·class="admonition·warning"><h4·class="admonition-title·warning">Warning</h4><p>Changing·the·values·can·make·a·connection·less·secure.·Do·not·change·unless |
| 2303 | you·know·exactly·what·you·are·doing.·If·you·do·not·understand·the·values·then | 2303 | you·know·exactly·what·you·are·doing.·If·you·do·not·understand·the·values·then |
| Offset 5337, 29 lines modified | Offset 5337, 29 lines modified | ||
| 5337 | ·································StringOrString·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:string/0">string</a>()·|·[<a·href="../../../../erts-16.0/doc/html/erlang.html#t:string/0">string</a>()].</pre> | 5337 | ·································StringOrString·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:string/0">string</a>()·|·[<a·href="../../../../erts-16.0/doc/html/erlang.html#t:string/0">string</a>()].</pre> |
| 5338 | ······</div> | 5338 | ······</div> |
| 5339 | <p>hostkey_fingerprint([DigestType],·HostKey)·-> | 5339 | <p>hostkey_fingerprint([DigestType],·HostKey)·-> |
| 5340 | [string()]hostkey_fingerprint(DigestType,·HostKey)·->·string()</p><p>Calculates·a·ssh·fingerprint·from·a·public·host·key·as·openssh·does.</p><p>The·algorithm·in·<a·href="#hostkey_fingerprint/1"><code·class="inline">hostkey_fingerprint/1</code></a>·is·md5·to·be | 5340 | [string()]hostkey_fingerprint(DigestType,·HostKey)·->·string()</p><p>Calculates·a·ssh·fingerprint·from·a·public·host·key·as·openssh·does.</p><p>The·algorithm·in·<a·href="#hostkey_fingerprint/1"><code·class="inline">hostkey_fingerprint/1</code></a>·is·md5·to·be |
| 5341 | compatible·with·older·ssh-keygen·commands.·The·string·from·the·second·variant·is | 5341 | compatible·with·older·ssh-keygen·commands.·The·string·from·the·second·variant·is |
| 5342 | prepended·by·the·algorithm·name·in·uppercase·as·in·newer·ssh-keygen·commands.</p><p>Examples:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">·</span><span·class="mi">2</span><span·class="o">></span><span·class="w">·</span><span·class="nc">ssh</span><span·class="p">:</span><span·class="nf">hostkey_fingerprint</span><span·class="p"·data-group-id=" | 5342 | prepended·by·the·algorithm·name·in·uppercase·as·in·newer·ssh-keygen·commands.</p><p>Examples:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">·</span><span·class="mi">2</span><span·class="o">></span><span·class="w">·</span><span·class="nc">ssh</span><span·class="p">:</span><span·class="nf">hostkey_fingerprint</span><span·class="p"·data-group-id="5520171301-1">(</span><span·class="n">Key</span><span·class="p"·data-group-id="5520171301-1">)</span><span·class="p">.</span><span·class="w"> |
| 5343 | ·</span><span·class="s">"f5:64:a6:c1:5a:cb:9f:0a:10:46:a2:5c:3e:2f:57:84"</span><span·class="w"> | 5343 | ·</span><span·class="s">"f5:64:a6:c1:5a:cb:9f:0a:10:46:a2:5c:3e:2f:57:84"</span><span·class="w"> |
| 5344 | ·</span><span·class="mi">3</span><span·class="o">></span><span·class="w">·</span><span·class="nc">ssh</span><span·class="p">:</span><span·class="nf">hostkey_fingerprint</span><span·class="p"·data-group-id=" | 5344 | ·</span><span·class="mi">3</span><span·class="o">></span><span·class="w">·</span><span·class="nc">ssh</span><span·class="p">:</span><span·class="nf">hostkey_fingerprint</span><span·class="p"·data-group-id="5520171301-2">(</span><span·class="nb">md5</span><span·class="p">,</span><span·class="n">Key</span><span·class="p"·data-group-id="5520171301-2">)</span><span·class="p">.</span><span·class="w"> |
| 5345 | ·</span><span·class="s">"MD5:f5:64:a6:c1:5a:cb:9f:0a:10:46:a2:5c:3e:2f:57:84"</span><span·class="w"> | 5345 | ·</span><span·class="s">"MD5:f5:64:a6:c1:5a:cb:9f:0a:10:46:a2:5c:3e:2f:57:84"</span><span·class="w"> |
| 5346 | ·</span><span·class="mi">4</span><span·class="o">></span><span·class="w">·</span><span·class="nc">ssh</span><span·class="p">:</span><span·class="nf">hostkey_fingerprint</span><span·class="p"·data-group-id=" | 5346 | ·</span><span·class="mi">4</span><span·class="o">></span><span·class="w">·</span><span·class="nc">ssh</span><span·class="p">:</span><span·class="nf">hostkey_fingerprint</span><span·class="p"·data-group-id="5520171301-3">(</span><span·class="ss">sha</span><span·class="p">,</span><span·class="n">Key</span><span·class="p"·data-group-id="5520171301-3">)</span><span·class="p">.</span><span·class="w"> |
| 5347 | ·</span><span·class="s">"SHA1:bSLY/C4QXLDL/Iwmhyg0PGW9UbY"</span><span·class="w"> | 5347 | ·</span><span·class="s">"SHA1:bSLY/C4QXLDL/Iwmhyg0PGW9UbY"</span><span·class="w"> |
| 5348 | ·</span><span·class="mi">5</span><span·class="o">></span><span·class="w">·</span><span·class="nc">ssh</span><span·class="p">:</span><span·class="nf">hostkey_fingerprint</span><span·class="p"·data-group-id=" | 5348 | ·</span><span·class="mi">5</span><span·class="o">></span><span·class="w">·</span><span·class="nc">ssh</span><span·class="p">:</span><span·class="nf">hostkey_fingerprint</span><span·class="p"·data-group-id="5520171301-4">(</span><span·class="ss">sha256</span><span·class="p">,</span><span·class="n">Key</span><span·class="p"·data-group-id="5520171301-4">)</span><span·class="p">.</span><span·class="w"> |
| 5349 | ·</span><span·class="s">"SHA256:aZGXhabfbf4oxglxltItWeHU7ub3Dc31NcNw2cMJePQ"</span><span·class="w"> | 5349 | ·</span><span·class="s">"SHA256:aZGXhabfbf4oxglxltItWeHU7ub3Dc31NcNw2cMJePQ"</span><span·class="w"> |
| 5350 | ·</span><span·class="mi">6</span><span·class="o">></span><span·class="w">·</span><span·class="nc">ssh</span><span·class="p">:</span><span·class="nf">hostkey_fingerprint</span><span·class="p"·data-group-id=" | 5350 | ·</span><span·class="mi">6</span><span·class="o">></span><span·class="w">·</span><span·class="nc">ssh</span><span·class="p">:</span><span·class="nf">hostkey_fingerprint</span><span·class="p"·data-group-id="5520171301-5">(</span><span·class="p"·data-group-id="5520171301-6">[</span><span·class="ss">sha</span><span·class="p">,</span><span·class="ss">sha256</span><span·class="p"·data-group-id="5520171301-6">]</span><span·class="p">,</span><span·class="n">Key</sp[·...·truncated·by·diffoscope;·len:·42,·SHA:·432a20b1fe2089d1d6c7815f6e7a0cd4e05f251f2ce55a23785e4782f9878fce·...·]01-5">)</span><span·class="p">.</span><span·class="w"> |
| 5351 | ·</span><span·class="p"·data-group-id=" | 5351 | ·</span><span·class="p"·data-group-id="5520171301-7">[</span><span·class="s">"SHA1:bSLY/C4QXLDL/Iwmhyg0PGW9UbY"</span><span·class="p">,</span><span·class="w"> |
| 5352 | ··</span><span·class="s">"SHA256:aZGXhabfbf4oxglxltItWeHU7ub3Dc31NcNw2cMJePQ"</span><span·class="p"·data-group-id=" | 5352 | ··</span><span·class="s">"SHA256:aZGXhabfbf4oxglxltItWeHU7ub3Dc31NcNw2cMJePQ"</span><span·class="p"·data-group-id="5520171301-7">]</span></code></pre> |
| 5353 | ··</section> | 5353 | ··</section> |
| 5354 | </section> | 5354 | </section> |
| 5355 | <section·class="detail"·id="set_sock_opts/2"> | 5355 | <section·class="detail"·id="set_sock_opts/2"> |
| 5356 | ··<div·class="detail-header"> | 5356 | ··<div·class="detail-header"> |
| 5357 | ····<a·href="#set_sock_opts/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 5357 | ····<a·href="#set_sock_opts/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 5358 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 5358 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 5900, 15 lines modified | Offset 5900, 15 lines modified | ||
| 5900 | ······<p·class="built-using"> | 5900 | ······<p·class="built-using"> |
| 5901 | ········Built·using | 5901 | ········Built·using |
| 5902 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 5902 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 5903 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 5903 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 5904 | ······</p> | 5904 | ······</p> |
| 5905 | <p>Copyright·©·1996-202 | 5905 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 5906 | ····</footer> | 5906 | ····</footer> |
| 5907 | ··</div> | 5907 | ··</div> |
| 5908 | </main> | 5908 | </main> |
| 5909 | </div> | 5909 | </div> |
| 5910 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 5910 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 5911 | ··<script> | 5911 | ··<script> |
| 5912 | ··let·initialized·=·false; | 5912 | ··let·initialized·=·false; |
| Offset 131, 19 lines modified | Offset 131, 19 lines modified | ||
| 131 | <p>Callback·module·for·using·an·SSH·agent·instead·of·the·default·ssh_file·callback.</p><p>This·module·defines·a·callback·handler·for·the·communication·with·an | 131 | <p>Callback·module·for·using·an·SSH·agent·instead·of·the·default·ssh_file·callback.</p><p>This·module·defines·a·callback·handler·for·the·communication·with·an |
| 132 | <a·href="https://tools.ietf.org/html/draft-miller-ssh-agent-02">SSH·Agent</a>·and·can·be | 132 | <a·href="https://tools.ietf.org/html/draft-miller-ssh-agent-02">SSH·Agent</a>·and·can·be |
| 133 | used·to·replace·the·<a·href="ssh_file.html">default·callback</a>.·This·allows·to·issue | 133 | used·to·replace·the·<a·href="ssh_file.html">default·callback</a>.·This·allows·to·issue |
| 134 | signing·requests·to·an·agent·that·stores·SSH·private·keys·to·perform | 134 | signing·requests·to·an·agent·that·stores·SSH·private·keys·to·perform |
| 135 | authentication.</p><p>Ssh_agent·implements·the·<a·href="ssh_client_key_api.html"><code·class="inline">ssh_client_key_api</code></a>,·to·allow·it·to·be·used·by | 135 | authentication.</p><p>Ssh_agent·implements·the·<a·href="ssh_client_key_api.html"><code·class="inline">ssh_client_key_api</code></a>,·to·allow·it·to·be·used·by |
| 136 | setting·the·option·<a·href="ssh.html#t:key_cb_common_option/0"><code·class="inline">key_cb</code></a>·when·starting·a | 136 | setting·the·option·<a·href="ssh.html#t:key_cb_common_option/0"><code·class="inline">key_cb</code></a>·when·starting·a |
| 137 | client·(with·for·example·<a·href="ssh.html#connect/3">ssh:connect</a>, | 137 | client·(with·for·example·<a·href="ssh.html#connect/3">ssh:connect</a>, |
| 138 | <a·href="ssh.html#shell/1">ssh:shell</a>·).</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">······</span><span·class="p"·data-group-id=" | 138 | <a·href="ssh.html#shell/1">ssh:shell</a>·).</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">······</span><span·class="p"·data-group-id="3517281949-1">{</span><span·class="ss">key_cb</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3517281949-2">{</span><span·class="ss">ssh_agent</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-g[·...·truncated·by·diffoscope;·len:·178,·SHA:·bdc76643b60a36a15172b7b35a3ff22330514f47608386b39c753e222ff2ba6e·...·]-1">}</span></code></pre><p>The·agent·communication·is·established·through·a·UNIX·domain·socket.·By·default, |
| 139 | the·socket·path·will·be·fetched·from·the·<code·class="inline">SSH_AUTH_SOCK</code>·environment·variable, | 139 | the·socket·path·will·be·fetched·from·the·<code·class="inline">SSH_AUTH_SOCK</code>·environment·variable, |
| 140 | which·is·the·default·socket·path·in·the·agent·implementation·of | 140 | which·is·the·default·socket·path·in·the·agent·implementation·of |
| 141 | <a·href="http://www.openssh.com">OpenSSH</a>.</p><p><a·href=""·id="SOCKET_PATH"></a>·In·order·to·set·a·different·socket·path·the·<code·class="inline">socket_path</code> | 141 | <a·href="http://www.openssh.com">OpenSSH</a>.</p><p><a·href=""·id="SOCKET_PATH"></a>·In·order·to·set·a·different·socket·path·the·<code·class="inline">socket_path</code> |
| 142 | option·can·be·set.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">······</span><span·class="p"·data-group-id=" | 142 | option·can·be·set.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">······</span><span·class="p"·data-group-id="1764224834-1">{</span><span·class="ss">key_cb</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1764224834-2">{</span><span·class="ss">ssh_agent</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-g[·...·truncated·by·diffoscope;·len:·400,·SHA:·b7598db6d90cf3837be07f7ef8e8b967cc5e5e23191bb069d4e8ebf5e11bb294·...·]-1">}</span></code></pre><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>The·functions·are·<em>Callbacks</em>·for·the·SSH·app.·They·are·not·intended·to·be |
| 143 | called·from·the·user's·code!</p></section> | 143 | called·from·the·user's·code!</p></section> |
| 144 | ····</section> | 144 | ····</section> |
| 145 | </div> | 145 | </div> |
| 146 | ··<section·id="summary"·class="details-list"> | 146 | ··<section·id="summary"·class="details-list"> |
| 147 | ····<h1·class="section-heading"> | 147 | ····<h1·class="section-heading"> |
| Offset 547, 15 lines modified | Offset 547, 15 lines modified | ||
| 547 | ······<p·class="built-using"> | 547 | ······<p·class="built-using"> |
| 548 | ········Built·using | 548 | ········Built·using |
| 549 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 549 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 550 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 550 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 551 | ······</p> | 551 | ······</p> |
| 552 | <p>Copyright·©·1996-202 | 552 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 553 | ····</footer> | 553 | ····</footer> |
| 554 | ··</div> | 554 | ··</div> |
| 555 | </main> | 555 | </main> |
| 556 | </div> | 556 | </div> |
| 557 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 557 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 558 | ··<script> | 558 | ··<script> |
| 559 | ··let·initialized·=·false; | 559 | ··let·initialized·=·false; |
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| 347 | ······<p·class="built-using"> | 347 | ······<p·class="built-using"> |
| 348 | ········Built·using | 348 | ········Built·using |
| 349 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 349 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 350 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 350 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 351 | ······</p> | 351 | ······</p> |
| 352 | <p>Copyright·©·1996-202 | 352 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 961 | <p>Copyright·©·1996-202 | 961 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 528 | <p>Copyright·©·1996-202 | 528 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 1944 | <p>Copyright·©·1996-202 | 1944 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 1007 | <p>Copyright·©·1996-202 | 1007 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 379 | ······</p> | 379 | ······</p> |
| 380 | <p>Copyright·©·1996-202 | 380 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 381 | ····</footer> | 381 | ····</footer> |
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| 325 | ······</p> | 325 | ······</p> |
| 326 | <p>Copyright·©·1996-202 | 326 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 329 | </main> | 329 | </main> |
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| 2803 | <p>Copyright·©·1996-202 | 2803 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 2806 | </main> | 2806 | </main> |
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| 242 | ······</p> | 242 | ······</p> |
| 243 | <p>Copyright·©·1996-202 | 243 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 244 | ····</footer> | 244 | ····</footer> |
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| 246 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 246 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 247 | ······</p> | 247 | ······</p> |
| 248 | <p>Copyright·©·1996-202 | 248 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 249 | ····</footer> | 249 | ····</footer> |
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| 147 | ······</p> | 147 | ······</p> |
| 148 | <p>Copyright·©·1996-202 | 148 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 149 | ····</footer> | 149 | ····</footer> |
| 150 | ··</div> | 150 | ··</div> |
| 151 | </main> | 151 | </main> |
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| 153 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 153 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 213 | ······</p> | 213 | ······</p> |
| 214 | <p>Copyright·©·1996-202 | 214 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 215 | ····</footer> | 215 | ····</footer> |
| 216 | ··</div> | 216 | ··</div> |
| 217 | </main> | 217 | </main> |
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| 219 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 219 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 3576 | <p>Copyright·©·1996-202 | 3576 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 145 | ······</p> | 145 | ······</p> |
| 146 | <p>Copyright·©·1996-202 | 146 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 147 | ····</footer> | 147 | ····</footer> |
| 148 | ··</div> | 148 | ··</div> |
| 149 | </main> | 149 | </main> |
| 150 | </div> | 150 | </div> |
| 151 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 151 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 152 | ··<script> | 152 | ··<script> |
| 153 | ··let·initialized·=·false; | 153 | ··let·initialized·=·false; |
| Offset 1, 1 lines modified | Offset 1, 1 lines modified | ||
| 1 | Zip·archive·data,·made·by·v6.1·UNIX,·extract·using·at·least·v1.0,·last·modified·Ju | 1 | Zip·archive·data,·made·by·v6.1·UNIX,·extract·using·at·least·v1.0,·last·modified·Jul·05·2026·23:54:10,·uncompressed·size·20,·method=store |
| Offset 127, 17 lines modified | Offset 127, 17 lines modified | ||
| 127 | ··</h1> | 127 | ··</h1> |
| 128 | ····<section·id="moduledoc"> | 128 | ····<section·id="moduledoc"> |
| 129 | <p>Interface·functions·for·TLS·(Transport·Layer·Security) | 129 | <p>Interface·functions·for·TLS·(Transport·Layer·Security) |
| 130 | and·DTLS·(Datagram·Transport·Layer·Security).</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>The·application's·name·is·still·SSL·because·the·first·versions·of·the | 130 | and·DTLS·(Datagram·Transport·Layer·Security).</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>The·application's·name·is·still·SSL·because·the·first·versions·of·the |
| 131 | TLS·protocol·were·named·SSL·(Secure·Socket·Layer).·However,·no·version | 131 | TLS·protocol·were·named·SSL·(Secure·Socket·Layer).·However,·no·version |
| 132 | of·the·old·SSL·protocol·is·supported·by·this·application.</p></section><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">ssl</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id="4243175295-1">(</span><span·class="p"·data-group-id="4243175295-1">)</span><span·class="p">,</span><span·class="w">·</span><span·class="nc">ssl</span><span·class="p">:</span><span·class="nf">connect</span><span·class="p"·data-group-id="4243175295-2">(</span><span·class="s">"google.com"</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">443</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4243175295-3">[</span><span·class="p"·data-group-id="4243175295-4">{</span><span·class="ss">verify</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">verify_peer</span><span·class="p"·data-group-id="4243175295-4">}</span><span·class="p">,</span><span·class="w"> | ||
| 133 | ····</span><span·class="p"·data-group-id="4243175295-5">{</span><span·class="ss">cacerts</span><span·class="p">,</span><span·class="w">·</span><span·class="nc">public_key</span><span·class="p">:</span><span·class="nf">cacerts_get</span><span·class="p"·data-group-id="4243175295-6">(</span><span·class="p"·data-group-id="4243175295-6">)</span><span·class="p"·data-group-id="4243175295-5">}</span><span·class="p"·data-group-id="4243175295-3">]</span><span·class="p"·data-group-id="4243175295-2">)</span><span·class="p">.</span><span·class="w"> | ||
| 134 | 132 | of·the·old·SSL·protocol·is·supported·by·this·application.</p></section><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">ssl</span><span·class="p">:</span><span·class="nf">start</span[·...·truncated·by·diffoscope;·len:·770,·SHA:·abfc74dc0a50ec6e69eb4ada135d37a1f979b1cf63cb6dc16ada9891feebd6d9·...·] | |
| 133 | ····</span><span·class="p"·data-group-id="6742492459-5">{</span><span·class="ss">cacerts</span><span·class="p">,</span><span·class="w">·</span><span·class="nc">public_key</span><span·class="p">:</span><span·class="nf">cacerts_get</span><span·class="p"·data-group-id="6742492459-6">(</span><span·class="p"·data-group-id="6742492459-6">)</span><span·class="p"·data-group-id="6742492459-5">}</span><span·class="p"·data-group-id="6742492459-3">]</span><span·class="p"·data-group-id="6742492459-2">)</span><span·class="p">.</span><span·class="w"> | ||
| 134 | </span><span·class="p"·data-group-id="6742492459-7">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="p"·data-group-id="6742492459-8">{</span><span·class="ss">sslsocket</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6742492459-9">[</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p"·data-group-id="6742492459-9">]</span><span·class="p"·data-group-id="6742492459-8">}</span><span·class="p"·data-group-id="6742492459-7">}</span></code></pre><p>See·<a·href="using_ssl.html">Examples</a>·for·detailed·usage·and·more·examples·of | ||
| 135 | this·API.</p><p>Special·Erlang·node·configuration·for·the·application·can·be·found·in | 135 | this·API.</p><p>Special·Erlang·node·configuration·for·the·application·can·be·found·in |
| 136 | <a·href="ssl_app.html">SSL·Application</a>.</p> | 136 | <a·href="ssl_app.html">SSL·Application</a>.</p> |
| 137 | ····</section> | 137 | ····</section> |
| 138 | </div> | 138 | </div> |
| 139 | ··<section·id="summary"·class="details-list"> | 139 | ··<section·id="summary"·class="details-list"> |
| Offset 1921, 34 lines modified | Offset 1921, 34 lines modified | ||
| 1921 | from·the·cipher·suite.</p><p>In·TLS-1.2·a·somewhat·more·explicit·negotiation·is·made·possible·using·a·list·of | 1921 | from·the·cipher·suite.</p><p>In·TLS-1.2·a·somewhat·more·explicit·negotiation·is·made·possible·using·a·list·of |
| 1922 | <code·class="inline">{HashAlgo,·SignAlgo}</code>·tuples.</p><p>In·TLS-1.3,·these·algorithm·pairs·are·replaced·by·<a·href="#t:sign_scheme/0">signature | 1922 | <code·class="inline">{HashAlgo,·SignAlgo}</code>·tuples.</p><p>In·TLS-1.3,·these·algorithm·pairs·are·replaced·by·<a·href="#t:sign_scheme/0">signature |
| 1923 | schemes</a>·that·are·completely·decoupled·from·the | 1923 | schemes</a>·that·are·completely·decoupled·from·the |
| 1924 | cipher·suite.</p><p>Signature·algorithms·used·for·certificates·can·be·overridden·by·the | 1924 | cipher·suite.</p><p>Signature·algorithms·used·for·certificates·can·be·overridden·by·the |
| 1925 | <a·href="#t:sign_scheme/0">signature·schemes</a>·supplied·by·the | 1925 | <a·href="#t:sign_scheme/0">signature·schemes</a>·supplied·by·the |
| 1926 | <code·class="inline">signature_algs_cert</code>·option.</p><p>The·TLS-1.2·default·is·<code·class="inline">Default_TLS_12_Alg_Pairs</code>·interleaved·with | 1926 | <code·class="inline">signature_algs_cert</code>·option.</p><p>The·TLS-1.2·default·is·<code·class="inline">Default_TLS_12_Alg_Pairs</code>·interleaved·with |
| 1927 | <code·class="inline">rsa_pss_schemes</code>·since·ssl-11.0·(Erlang/OTP·25).·<code·class="inline">pss_pss</code>·is | 1927 | <code·class="inline">rsa_pss_schemes</code>·since·ssl-11.0·(Erlang/OTP·25).·<code·class="inline">pss_pss</code>·is |
| 1928 | preferred·over·<code·class="inline">pss_rsae</code>,·which·in·turn·is·preferred·over·<code·class="inline">rsa</code>.</p><p>The·list·for·<code·class="inline">Default_TLS_12_Alg_Pairs</code>·is·defined·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 1928 | preferred·over·<code·class="inline">pss_rsae</code>,·which·in·turn·is·preferred·over·<code·class="inline">rsa</code>.</p><p>The·list·for·<code·class="inline">Default_TLS_12_Alg_Pairs</code>·is·defined·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="5927192015-1">[</span><span·class="w"> |
| 1929 | </span><span·class="p"·data-group-id=" | 1929 | </span><span·class="p"·data-group-id="5927192015-2">{</span><span·class="ss">sha512</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">ecdsa</span><span·class="p"·data-group-id="5927192015-2">}</span><span·class="p">,</span><span·class="w"> |
| 1930 | </span><span·class="p"·data-group-id=" | 1930 | </span><span·class="p"·data-group-id="5927192015-3">{</span><span·class="ss">sha512</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">rsa</span><span·class="p"·data-group-id="5927192015-3">}</span><span·class="p">,</span><span·class="w"> |
| 1931 | </span><span·class="p"·data-group-id=" | 1931 | </span><span·class="p"·data-group-id="5927192015-4">{</span><span·class="ss">sha384</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">ecdsa</span><span·class="p"·data-group-id="5927192015-4">}</span><span·class="p">,</span><span·class="w"> |
| 1932 | </span><span·class="p"·data-group-id=" | 1932 | </span><span·class="p"·data-group-id="5927192015-5">{</span><span·class="ss">sha384</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">rsa</span><span·class="p"·data-group-id="5927192015-5">}</span><span·class="p">,</span><span·class="w"> |
| 1933 | </span><span·class="p"·data-group-id=" | 1933 | </span><span·class="p"·data-group-id="5927192015-6">{</span><span·class="ss">sha256</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">ecdsa</span><span·class="p"·data-group-id="5927192015-6">}</span><span·class="p">,</span><span·class="w"> |
| 1934 | </span><span·class="p"·data-group-id=" | 1934 | </span><span·class="p"·data-group-id="5927192015-7">{</span><span·class="ss">sha256</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">rsa</span><span·class="p"·data-group-id="5927192015-7">}</span><span·class="w"> |
| 1935 | </span><span·class="p"·data-group-id=" | 1935 | </span><span·class="p"·data-group-id="5927192015-1">]</span></code></pre><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Change</h4><ul><li>Support·for·<code·class="inline">{md5,·rsa}</code>·was·removed·from·the·TLS-1.2·default·in |
| 1936 | ssl-8.0·(Erlang/OTP·22).</li><li>Support·for·<code·class="inline">{sha,·_}</code>·(SHA1)·and·<code·class="inline">{sha224,·_}</code>·was·removed | 1936 | ssl-8.0·(Erlang/OTP·22).</li><li>Support·for·<code·class="inline">{sha,·_}</code>·(SHA1)·and·<code·class="inline">{sha224,·_}</code>·was·removed |
| 1937 | from·the·TLS-1.2·default·in·ssl-11.0·(Erlang/OTP·26).</li></ul></section><p>The·list·for·<code·class="inline">rsa_pss_schemes</code>·is·defined·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 1937 | from·the·TLS-1.2·default·in·ssl-11.0·(Erlang/OTP·26).</li></ul></section><p>The·list·for·<code·class="inline">rsa_pss_schemes</code>·is·defined·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="1475542433-1">[</span><span·class="ss">rsa_pss_pss_sha512</span><span·class="p">,</span><span·class="w"> |
| 1938 | </span><span·class="ss">rsa_pss_pss_sha384</span><span·class="p">,</span><span·class="w"> | 1938 | </span><span·class="ss">rsa_pss_pss_sha384</span><span·class="p">,</span><span·class="w"> |
| 1939 | </span><span·class="ss">rsa_pss_pss_sha256</span><span·class="p">,</span><span·class="w"> | 1939 | </span><span·class="ss">rsa_pss_pss_sha256</span><span·class="p">,</span><span·class="w"> |
| 1940 | </span><span·class="ss">rsa_pss_rsae_sha512</span><span·class="p">,</span><span·class="w"> | 1940 | </span><span·class="ss">rsa_pss_rsae_sha512</span><span·class="p">,</span><span·class="w"> |
| 1941 | </span><span·class="ss">rsa_pss_rsae_sha384</span><span·class="p">,</span><span·class="w"> | 1941 | </span><span·class="ss">rsa_pss_rsae_sha384</span><span·class="p">,</span><span·class="w"> |
| 1942 | </span><span·class="ss">rsa_pss_rsae_sha256</span><span·class="p"·data-group-id=" | 1942 | </span><span·class="ss">rsa_pss_rsae_sha256</span><span·class="p"·data-group-id="1475542433-1">]</span></code></pre><p>The·list·of·<code·class="inline">TLS_13_Legacy_Schemes</code>·is·defined·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="4905310377-1">[</span><span·class="w"> |
| 1943 | </span><span·class="c1">%%·Legacy·algorithms·only·applicable·to·certificate·signatures</span><span·class="w"> | 1943 | </span><span·class="c1">%%·Legacy·algorithms·only·applicable·to·certificate·signatures</span><span·class="w"> |
| 1944 | </span><span·class="ss">rsa_pkcs1_sha512</span><span·class="p">,</span><span·class="w">·</span><span·class="c1">%%·Corresponds·to·{sha512,·rsa}</span><span·class="w"> | 1944 | </span><span·class="ss">rsa_pkcs1_sha512</span><span·class="p">,</span><span·class="w">·</span><span·class="c1">%%·Corresponds·to·{sha512,·rsa}</span><span·class="w"> |
| 1945 | </span><span·class="ss">rsa_pkcs1_sha384</span><span·class="p">,</span><span·class="w">·</span><span·class="c1">%%·Corresponds·to·{sha384,·rsa}</span><span·class="w"> | 1945 | </span><span·class="ss">rsa_pkcs1_sha384</span><span·class="p">,</span><span·class="w">·</span><span·class="c1">%%·Corresponds·to·{sha384,·rsa}</span><span·class="w"> |
| 1946 | </span><span·class="ss">rsa_pkcs1_sha256</span><span·class="p">,</span><span·class="w">·</span><span·class="c1">%%·Corresponds·to·{sha256,·rsa}</span><span·class="w"> | 1946 | </span><span·class="ss">rsa_pkcs1_sha256</span><span·class="p">,</span><span·class="w">·</span><span·class="c1">%%·Corresponds·to·{sha256,·rsa}</span><span·class="w"> |
| 1947 | </span><span·class="p"·data-group-id=" | 1947 | </span><span·class="p"·data-group-id="4905310377-1">]</span></code></pre><p>The·list·of·<code·class="inline">Default_TLS_13_Schemes</code>·is·defined·as·follows:</p><pre><code·class="text">[ |
| 1948 | %%·EDDSA | 1948 | %%·EDDSA |
| 1949 | eddsa_ed25519, | 1949 | eddsa_ed25519, |
| 1950 | eddsa_ed448 | 1950 | eddsa_ed448 |
| 1951 | %%·ECDSA | 1951 | %%·ECDSA |
| 1952 | ecdsa_secp521r1_sha512, | 1952 | ecdsa_secp521r1_sha512, |
| 1953 | ecdsa_secp384r1_sha384, | 1953 | ecdsa_secp384r1_sha384, |
| Offset 2211, 16 lines modified | Offset 2211, 16 lines modified | ||
| 2211 | ······<div·class="specs"> | 2211 | ······<div·class="specs"> |
| 2212 | ··········<pre·translate="no"><span·class="attribute">-type</span>·anchor_fun()·::·fun().</pre> | 2212 | ··········<pre·translate="no"><span·class="attribute">-type</span>·anchor_fun()·::·fun().</pre> |
| 2213 | ······</div> | 2213 | ······</div> |
| 2214 | <p>Claim·an·intermediate·CA·in·the·chain·as·trusted.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">fun</span><span·class="p"·data-group-id="3900079009-1">(</span><span·class="n">Chain</span><span·class="p">:</span><span·class="p">:</span><span·class="p"·data-group-id="3900079009-2">[</span><span·class="nc">public_key</span><span·class="p">:</span><span·class="nf">der_encoded</span><span·class="p"·data-group-id="3900079009-3">(</span><span·class="p"·data-group-id="3900079009-3">)</span><span·class="p"·data-group-id="3900079009-2">]</span><span·class="p"·data-group-id="3900079009-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | ||
| 2215 | 2214 | <p>Claim·an·intermediate·CA·in·the·chain·as·trusted.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">fun</span><span·class="p"·data-group-id="9925680396-1">(</span><span·class="n">Chain</span><span·class="p">:</span><span·class="p">:</s[·...·truncated·by·diffoscope;·len:·430,·SHA:·6814c0d1299288525d88514d1ef58b228bfe6a4f64806875a39c53bb04c12339·...·] | |
| 2215 | ······</span><span·class="p"·data-group-id="9925680396-4">{</span><span·class="ss">trusted_ca</span><span·class="p">,</span><span·class="w">·</span><span·class="n">DerCert</span><span·class="p">:</span><span·class="p">:</span><span·class="nc">public_key</span><span·class="p">:</span><span·class="nf">der_encoded</span><span·class="p"·data-group-id="9925680396-5">(</span><span·class="p"·data-group-id="9925680396-5">)</span><span·class="p"·data-group-id="9925680396-4">}</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">unknown_ca</span><span·class="p">.</span></code></pre><p>TLS·then·uses·<a·href="../../../../lib/public_key-1.18/doc/html/public_key.html#pkix_path_validation/3"><code·class="inline">public_key:pkix_path_validation/3</code></a>·with·the·selected·CA | ||
| 2216 | as·the·trusted·anchor·and·verifies·the·rest·of·the·chain.</p> | 2216 | as·the·trusted·anchor·and·verifies·the·rest·of·the·chain.</p> |
| 2217 | ··</section> | 2217 | ··</section> |
| 2218 | </section> | 2218 | </section> |
| 2219 | <section·class="detail"·id="t:cert_key_conf/0"> | 2219 | <section·class="detail"·id="t:cert_key_conf/0"> |
| 2220 | ··<div·class="detail-header"> | 2220 | ··<div·class="detail-header"> |
| 2221 | ····<a·href="#t:cert_key_conf/0"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·type"> | 2221 | ····<a·href="#t:cert_key_conf/0"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·type"> |
| Offset 2457, 15 lines modified | Offset 2457, 15 lines modified | ||
| 2457 | <a·href="#connect/3">connect/3,4</a>·unless·it·is·of·type·<a·href="../../../../lib/kernel-10.3/doc/html/inet.html#t:ip_address/0"><code·class="inline">inet:ip_address()</code></a>. | 2457 | <a·href="#connect/3">connect/3,4</a>·unless·it·is·of·type·<a·href="../../../../lib/kernel-10.3/doc/html/inet.html#t:ip_address/0"><code·class="inline">inet:ip_address()</code></a>. |
| 2458 | The·hostname·will·also·be·used·in·the·hostname·verification·of·the·peer | 2458 | The·hostname·will·also·be·used·in·the·hostname·verification·of·the·peer |
| 2459 | certificate·using·<a·href="../../../../lib/public_key-1.18/doc/html/public_key.html#pkix_verify_hostname/2"><code·class="inline">public_key:pkix_verify_hostname/2</code></a>. | 2459 | certificate·using·<a·href="../../../../lib/public_key-1.18/doc/html/public_key.html#pkix_verify_hostname/2"><code·class="inline">public_key:pkix_verify_hostname/2</code></a>. |
| 2460 | The·special·value·<code·class="inline">disable</code>·prevents·the·Server·Name·Indication·extension·from | 2460 | The·special·value·<code·class="inline">disable</code>·prevents·the·Server·Name·Indication·extension·from |
| 2461 | being·sent·and·disables·the·hostname·verification·check.</p></li><li><p><strong><code·class="inline">{customize_hostname_check,·HostNameCheckOpts}</code></strong>·-·Customization·option</p><p>Customizes·the·hostname·verification·of·the·peer·certificate,·as·various | 2461 | being·sent·and·disables·the·hostname·verification·check.</p></li><li><p><strong><code·class="inline">{customize_hostname_check,·HostNameCheckOpts}</code></strong>·-·Customization·option</p><p>Customizes·the·hostname·verification·of·the·peer·certificate,·as·various |
| 2462 | protocols·that·use·TLS,·such·as·HTTP·or·LDAP,·may·require·different·approaches.·For | 2462 | protocols·that·use·TLS,·such·as·HTTP·or·LDAP,·may·require·different·approaches.·For |
| 2463 | example,·here·is·how·to·use·standard·hostname·checking·for·HTTPS·implemented·in | 2463 | example,·here·is·how·to·use·standard·hostname·checking·for·HTTPS·implemented·in |
| 2464 | <a·href="../../../../lib/public_key-1.18/doc/html/public_key_app.html">Public_Key</a>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 2464 | <a·href="../../../../lib/public_key-1.18/doc/html/public_key_app.html">Public_Key</a>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="2708379445-1">{</span><span·class="ss">customize_hostname_check</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2708379445-2">[</span><span·class="p"·data-group-id="2708379445-3">{</span><span·class="ss">match_fun</span[·...·truncated·by·diffoscope;·len:·443,·SHA:·70343037a4ce471ba7b5791062e3177bb5fe881a600da632d24220559003545e·...·]-1">}</span></code></pre><p>For·futher·description·of·the·customize·options,·see |
| 2465 | <a·href="../../../../lib/public_key-1.18/doc/html/public_key.html#pkix_verify_hostname/3"><code·class="inline">public_key:pkix_verify_hostname/3</code></a>.</p></li><li><p><strong><code·class="inline">{client_certificate_authorities,·UseCertAuth}</code></strong>·-·Inter-op·hint·option</p><p>If·<code·class="inline">UseCertAuth</code>·is·set·to·<code·class="inline">true</code>,·sends·the·certificate·authorities | 2465 | <a·href="../../../../lib/public_key-1.18/doc/html/public_key.html#pkix_verify_hostname/3"><code·class="inline">public_key:pkix_verify_hostname/3</code></a>.</p></li><li><p><strong><code·class="inline">{client_certificate_authorities,·UseCertAuth}</code></strong>·-·Inter-op·hint·option</p><p>If·<code·class="inline">UseCertAuth</code>·is·set·to·<code·class="inline">true</code>,·sends·the·certificate·authorities |
| 2466 | extension·in·the·TLS-1.3·client·hello.·The·default·is·<code·class="inline">false</code>.·Note | 2466 | extension·in·the·TLS-1.3·client·hello.·The·default·is·<code·class="inline">false</code>.·Note |
| 2467 | that·setting·<code·class="inline">UseCertAuth</code>·to·<code·class="inline">true</code>·can·result·in·a·significant | 2467 | that·setting·<code·class="inline">UseCertAuth</code>·to·<code·class="inline">true</code>·can·result·in·a·significant |
| 2468 | overhead·if·there·exists·many·trusted·CA·certificates.·(Since | 2468 | overhead·if·there·exists·many·trusted·CA·certificates.·(Since |
| 2469 | Erlang/OTP·24.3.)</p></li><li><p><strong><code·class="inline">{stapling,·Stapling}</code></strong>·-·Certificate·revocation·check·option</p><p>If·<code·class="inline">Stapling</code>·is·atom·<code·class="inline">staple</code>·or·a·map,·OCSP·stapling·will·be | 2469 | Erlang/OTP·24.3.)</p></li><li><p><strong><code·class="inline">{stapling,·Stapling}</code></strong>·-·Certificate·revocation·check·option</p><p>If·<code·class="inline">Stapling</code>·is·atom·<code·class="inline">staple</code>·or·a·map,·OCSP·stapling·will·be |
| 2470 | enabled,·meaning·that·an·extension·of·type·"status_request"·will·be | 2470 | enabled,·meaning·that·an·extension·of·type·"status_request"·will·be |
| 2471 | included·in·the·client·hello·to·indicate·the·desire·to·receive | 2471 | included·in·the·client·hello·to·indicate·the·desire·to·receive |
| Offset 2595, 25 lines modified | Offset 2595, 25 lines modified | ||
| 2595 | ··········{early_data,·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:binary/0">binary</a>()}·| | 2595 | ··········{early_data,·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:binary/0">binary</a>()}·| |
| 2596 | ··········{middlebox_comp_mode,·MiddleBoxMode·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:boolean/0">boolean</a>()}.</pre> | 2596 | ··········{middlebox_comp_mode,·MiddleBoxMode·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:boolean/0">boolean</a>()}.</pre> |
| 2597 | ······</div> | 2597 | ······</div> |
| 2598 | <p>Options·only·relevant·for·TLS-1.3.</p><ul><li><p><strong><code·class="inline">{session_tickets,·SessionTickets}</code></strong>·-·Use·of·session·tickets</p><p>Configures·the·session·ticket·functionality.·Allowed·values·are·<code·class="inline">disabled</code>, | 2598 | <p>Options·only·relevant·for·TLS-1.3.</p><ul><li><p><strong><code·class="inline">{session_tickets,·SessionTickets}</code></strong>·-·Use·of·session·tickets</p><p>Configures·the·session·ticket·functionality.·Allowed·values·are·<code·class="inline">disabled</code>, |
| 2599 | <code·class="inline">manual</code>,·and·<code·class="inline">auto</code>.·If·it·is·set·to·<code·class="inline">manual</code>·the·client·will·send·the·ticket | 2599 | <code·class="inline">manual</code>,·and·<code·class="inline">auto</code>.·If·it·is·set·to·<code·class="inline">manual</code>·the·client·will·send·the·ticket |
| 2600 | information·to·user·process·in·a·3-tuple:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 2600 | information·to·user·process·in·a·3-tuple:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="7822010563-1">{</span><span·class="ss">ssl</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">session_ticket</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="7822010563-2">{</span><span·class="n">SNI<[·...·truncated·by·diffoscope;·len:·181,·SHA:·653bb449d6fb97079cdceb30450e603de768c726085b5350e2df2e4fa8b06811·...·]-1">}</span></code></pre><p>where·<code·class="inline">SNI</code>·is·the·ServerNameIndication·and·<code·class="inline">TicketData</code>·is·the·extended·ticket |
| 2601 | data·that·can·be·used·in·subsequent·session·resumptions.</p><p>If·it·is·set·to·<code·class="inline">auto</code>,·the·client·automatically·handles·received·tickets·and | 2601 | data·that·can·be·used·in·subsequent·session·resumptions.</p><p>If·it·is·set·to·<code·class="inline">auto</code>,·the·client·automatically·handles·received·tickets·and |
| 2602 | tries·to·use·them·when·making·new·TLS·connections·(session·resumption·with | 2602 | tries·to·use·them·when·making·new·TLS·connections·(session·resumption·with |
| 2603 | pre-shared·keys).</p><p>Ticket·lifetime,·the·number·of·tickets·sent·by·the·server,·and·the | 2603 | pre-shared·keys).</p><p>Ticket·lifetime,·the·number·of·tickets·sent·by·the·server,·and·the |
| 2604 | maximum·number·of·tickets·stored·by·the·server·in·stateful·mode·are·configured | 2604 | maximum·number·of·tickets·stored·by·the·server·in·stateful·mode·are·configured |
| 2605 | by·<a·href="ssl_app.html#configuration">application·variables</a>.</p><p>See·also | 2605 | by·<a·href="ssl_app.html#configuration">application·variables</a>.</p><p>See·also |
| 2606 | <a·href="using_ssl.html#session-tickets-and-session-resumption-in-tls-1-3">SSL·User's·Guide,·Session·Tickets·and·Session·Resumption·in·TLS·1.3</a>.</p></li><li><p><strong><code·class="inline">{use_ticket,·Tickets}</code></strong></p><p>Configures·the·session·tickets·to·be·used·for·session·resumption.·It·is·a | 2606 | <a·href="using_ssl.html#session-tickets-and-session-resumption-in-tls-1-3">SSL·User's·Guide,·Session·Tickets·and·Session·Resumption·in·TLS·1.3</a>.</p></li><li><p><strong><code·class="inline">{use_ticket,·Tickets}</code></strong></p><p>Configures·the·session·tickets·to·be·used·for·session·resumption.·It·is·a |
| 2607 | mandatory·option·in·<code·class="inline">manual</code>·mode·(<code·class="inline">{session_tickets,·manual}</code>).</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>Session·tickets·are·only·sent·to·the·user·if·option·<code·class="inline">session_tickets</code>·is·set·to | 2607 | mandatory·option·in·<code·class="inline">manual</code>·mode·(<code·class="inline">{session_tickets,·manual}</code>).</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>Session·tickets·are·only·sent·to·the·user·if·option·<code·class="inline">session_tickets</code>·is·set·to |
| 2608 | <code·class="inline">manual</code></p><p>This·option·is·supported·by·TLS-1.3.·See·also | 2608 | <code·class="inline">manual</code></p><p>This·option·is·supported·by·TLS-1.3.·See·also |
| 2609 | <a·href="using_ssl.html#session-tickets-and-session-resumption-in-tls-1-3">SSL·User's·Guide,·Session·Tickets·and·Session·Resumption·in·TLS·1.3</a>.</p></section></li><li><p><strong><code·class="inline">{early_data,·EarlyData}</code></strong></p><p>Configures·the·early·data·to·be·sent·by·the·client.</p><p>To·verify·that·the·server·has·the·intention·to·process·the·early | 2609 | <a·href="using_ssl.html#session-tickets-and-session-resumption-in-tls-1-3">SSL·User's·Guide,·Session·Tickets·and·Session·Resumption·in·TLS·1.3</a>.</p></section></li><li><p><strong><code·class="inline">{early_data,·EarlyData}</code></strong></p><p>Configures·the·early·data·to·be·sent·by·the·client.</p><p>To·verify·that·the·server·has·the·intention·to·process·the·early |
| 2610 | data,·the·following·tuple·is·sent·to·the·user·process:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 2610 | data,·the·following·tuple·is·sent·to·the·user·process:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="7858270602-1">{</span><span·class="ss">ssl</span><span·class="p">,</span><span·class="w">·</span><span·class="n">SslSocket</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="7858270602-2">{</span><span·class="ss">early_dat[·...·truncated·by·diffoscope;·len:·179,·SHA:·feaba08ad5732d13e1b1f268b86167b045225009a980cccbd4d2abeef8c7244c·...·]-1">}</span></code></pre><p>where·<code·class="inline">Result</code>·is·either·<code·class="inline">accepted</code>·or·<code·class="inline">rejected</code>.</p><section·role="note"·class="admonition·warning"><h4·class="admonition-title·warning">Warning</h4><p>It·is·the·responsibility·of·the·user·to·handle·rejected·<code·class="inline">EarlyData</code>·and·to |
| 2611 | resend·when·appropriate.</p></section></li><li><p><strong><code·class="inline">{middlebox_comp_mode,·MiddleBoxMode}</code></strong></p><p>Configures·the·middlebox·compatibility·mode·for·a·TLS-1.3·connection.</p><p>A·significant·number·of·middleboxes·misbehave·when·a·TLS-1.3 | 2611 | resend·when·appropriate.</p></section></li><li><p><strong><code·class="inline">{middlebox_comp_mode,·MiddleBoxMode}</code></strong></p><p>Configures·the·middlebox·compatibility·mode·for·a·TLS-1.3·connection.</p><p>A·significant·number·of·middleboxes·misbehave·when·a·TLS-1.3 |
| 2612 | connection·is·negotiated.·Implementations·can·increase·the·chance·of | 2612 | connection·is·negotiated.·Implementations·can·increase·the·chance·of |
| 2613 | making·connections·through·those·middleboxes·by·adapting·the·TLS-1.3 | 2613 | making·connections·through·those·middleboxes·by·adapting·the·TLS-1.3 |
| 2614 | handshake·to·resemble·that·of·a·TLS-1.2·handshake.</p><p>The·middlebox·compatibility·mode·is·enabled·(<code·class="inline">true</code>)·by·default.</p></li></ul> | 2614 | handshake·to·resemble·that·of·a·TLS-1.2·handshake.</p><p>The·middlebox·compatibility·mode·is·enabled·(<code·class="inline">true</code>)·by·default.</p></li></ul> |
| 2615 | ··</section> | 2615 | ··</section> |
| 2616 | </section> | 2616 | </section> |
| Offset 2761, 28 lines modified | Offset 2761, 28 lines modified | ||
| 2761 | and·key·options.·For·examples,·see·the·<a·href="using_ssl.html">User's·Guide</a>.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p><code·class="inline">eddsa</code>·certificates·are·only·supported·by·TLS-1.3·implementations·that·do·not·support·<code·class="inline">dsa</code> | 2761 | and·key·options.·For·examples,·see·the·<a·href="using_ssl.html">User's·Guide</a>.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p><code·class="inline">eddsa</code>·certificates·are·only·supported·by·TLS-1.3·implementations·that·do·not·support·<code·class="inline">dsa</code> |
| 2762 | certificates.·<code·class="inline">rsa_pss_pss</code>·(RSA·certificates·using·Probabilistic·Signature | 2762 | certificates.·<code·class="inline">rsa_pss_pss</code>·(RSA·certificates·using·Probabilistic·Signature |
| 2763 | Scheme)·are·supported·in·TLS-1.2·and·TLS-1.3,·but·some·TLS-1.2·implementations | 2763 | Scheme)·are·supported·in·TLS-1.2·and·TLS-1.3,·but·some·TLS-1.2·implementations |
| 2764 | do·not·support·<code·class="inline">rsa_pss_pss</code>.</p></section></li><li><p><strong><code·class="inline">{depth,·AllowedCertChainLen}</code></strong>·-·Limits·the·accepted·number·of·certificates·in·the·certificate·chain.</p><p>Maximum·number·of·non-self-issued·intermediate·certificates·that·can·follow·the | 2764 | do·not·support·<code·class="inline">rsa_pss_pss</code>.</p></section></li><li><p><strong><code·class="inline">{depth,·AllowedCertChainLen}</code></strong>·-·Limits·the·accepted·number·of·certificates·in·the·certificate·chain.</p><p>Maximum·number·of·non-self-issued·intermediate·certificates·that·can·follow·the |
| 2765 | peer·certificate·in·a·valid·certification·path.·So,·if·depth·is·0·the·PEER·must | 2765 | peer·certificate·in·a·valid·certification·path.·So,·if·depth·is·0·the·PEER·must |
| 2766 | be·signed·by·the·trusted·ROOT-CA·directly;·if·1·the·path·can·be·PEER,·CA, | 2766 | be·signed·by·the·trusted·ROOT-CA·directly;·if·1·the·path·can·be·PEER,·CA, |
| 2767 | ROOT-CA;·if·2·the·path·can·be·PEER,·CA,·CA,·ROOT-CA,·and·so·on.·The·default | 2767 | ROOT-CA;·if·2·the·path·can·be·PEER,·CA,·CA,·ROOT-CA,·and·so·on.·The·default |
| 2768 | value·is·10.·Used·to·mitigate·DoS·attack·possibilities.</p></li><li><p><strong><code·class="inline">{verify_fun,·Verify}</code></strong>·-·Customize·certificate·path·validation</p><p>The·verification·fun·is·to·be·defined·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">fun</span><span·class="p"·data-group-id="7 | 2768 | value·is·10.·Used·to·mitigate·DoS·attack·possibilities.</p></li><li><p><strong><code·class="inline">{verify_fun,·Verify}</code></strong>·-·Customize·certificate·path·validation</p><p>The·verification·fun·is·to·be·defined·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">fun</span><span·class="p"·data-group-id="5749226724-1">(</span><span·class="n">OtpCert</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">'OTPCertificate'</span><span·class="p"·data-group-id="57492[·...·truncated·by·diffoscope;·len:·58,·SHA:·a907420767ec5e5f4907478d8f8f341a131e469f94b93789bf43c7fc473a8c57·...·]-2">}</span><span·class="p">,</span><span·class="w"> |
| 2769 | ····</span><span·class="n">Event</span><span·class="p">,</span><span·class="w">·</span><span·class="n">InitialUserState</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">term</span><span·class="p"·data-group-id="7 | 2769 | ····</span><span·class="n">Event</span><span·class="p">,</span><span·class="w">·</span><span·class="n">InitialUserState</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">term</span><span·class="p"·data-group-id="5749226724-3">(</span><span·class="p"·data-group-id="5749226724-3">)</span><span·class="p"·data-group-id="5749226724-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 2770 | ··</span><span·class="p"·data-group-id="7 | 2770 | ··</span><span·class="p"·data-group-id="5749226724-4">{</span><span·class="ss">valid</span><span·class="p">,</span><span·class="w">·</span><span·class="n">UserState</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">term</span><[·...·truncated·by·diffoscope;·len:·146,·SHA:·408d772e96eeca54a54d8de22cd595725e778bb411098327c8d73e1ecb7eca4a·...·]-4">}</span><span·class="w">·</span><span·class="p">|</span><span·class="w"> |
| 2771 | ··</span><span·class="p"·data-group-id="7 | 2771 | ··</span><span·class="p"·data-group-id="5749226724-6">{</span><span·class="ss">fail</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Reason</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">term</span><span[·...·truncated·by·diffoscope;·len:·661,·SHA:·ecf8fb9f8e8460688296b59f04de48557defd7baebd32123fdeb4f52c2650fbf·...·]-8">}</span><span·class="p">.</span><span·class="w"> |
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| 273 | ······<p·class="built-using"> | 273 | ······<p·class="built-using"> |
| 274 | ········Built·using | 274 | ········Built·using |
| 275 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 275 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 276 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 276 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 277 | ······</p> | 277 | ······</p> |
| 278 | <p>Copyright·©·1996-202 | 278 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 279 | ····</footer> | 279 | ····</footer> |
| 280 | ··</div> | 280 | ··</div> |
| 281 | </main> | 281 | </main> |
| 282 | </div> | 282 | </div> |
| 283 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 283 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 284 | ··<script> | 284 | ··<script> |
| 285 | ··let·initialized·=·false; | 285 | ··let·initialized·=·false; |
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| 357 | ······<p·class="built-using"> | 357 | ······<p·class="built-using"> |
| 358 | ········Built·using | 358 | ········Built·using |
| 359 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 359 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 360 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 360 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 361 | ······</p> | 361 | ······</p> |
| 362 | <p>Copyright·©·1996-202 | 362 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 363 | ····</footer> | 363 | ····</footer> |
| 364 | ··</div> | 364 | ··</div> |
| 365 | </main> | 365 | </main> |
| 366 | </div> | 366 | </div> |
| 367 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 367 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 368 | ··<script> | 368 | ··<script> |
| 369 | ··let·initialized·=·false; | 369 | ··let·initialized·=·false; |
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| 512 | ······<p·class="built-using"> | 512 | ······<p·class="built-using"> |
| 513 | ········Built·using | 513 | ········Built·using |
| 514 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 514 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 515 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 515 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 516 | ······</p> | 516 | ······</p> |
| 517 | <p>Copyright·©·1996-202 | 517 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 518 | ····</footer> | 518 | ····</footer> |
| 519 | ··</div> | 519 | ··</div> |
| 520 | </main> | 520 | </main> |
| 521 | </div> | 521 | </div> |
| 522 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 522 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 523 | ··<script> | 523 | ··<script> |
| 524 | ··let·initialized·=·false; | 524 | ··let·initialized·=·false; |
| Offset 143, 22 lines modified | Offset 143, 22 lines modified | ||
| 143 | </h2> | 143 | </h2> |
| 144 | <p>Boot·scripts·are·built·using·the·<code·class="inline">systools</code>·utility·in·the·SASL·application.·For | 144 | <p>Boot·scripts·are·built·using·the·<code·class="inline">systools</code>·utility·in·the·SASL·application.·For |
| 145 | more·information·on·<code·class="inline">systools</code>,·see·the·SASL·documentation.·This·is·only·an | 145 | more·information·on·<code·class="inline">systools</code>,·see·the·SASL·documentation.·This·is·only·an |
| 146 | example·of·what·can·be·done.</p><p>The·simplest·boot·script·possible·includes·only·the·Kernel·and·STDLIB | 146 | example·of·what·can·be·done.</p><p>The·simplest·boot·script·possible·includes·only·the·Kernel·and·STDLIB |
| 147 | applications.·Such·a·script·is·located·in·the·<code·class="inline">bin</code>·directory·of·the·Erlang | 147 | applications.·Such·a·script·is·located·in·the·<code·class="inline">bin</code>·directory·of·the·Erlang |
| 148 | distribution.·The·source·for·the·script·is·found·under·the·Erlang·installation | 148 | distribution.·The·source·for·the·script·is·found·under·the·Erlang·installation |
| 149 | top·directory·under·<code·class="inline">releases/<OTP·version>/start_clean.rel</code>.</p><p>Do·the·following:</p><ul><li>Copy·that·script·to·another·location·(and·preferably·another·name).</li><li>Add·the·applications·Crypto,·Public·Key,·and·SSL·with·their·current·version | 149 | top·directory·under·<code·class="inline">releases/<OTP·version>/start_clean.rel</code>.</p><p>Do·the·following:</p><ul><li>Copy·that·script·to·another·location·(and·preferably·another·name).</li><li>Add·the·applications·Crypto,·Public·Key,·and·SSL·with·their·current·version |
| 150 | numbers·after·the·STDLIB·application.</li></ul><p>The·following·shows·an·example·<code·class="inline">.rel</code>·file·with·TLS·added:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">······</span><span·class="p"·data-group-id=" | 150 | numbers·after·the·STDLIB·application.</li></ul><p>The·following·shows·an·example·<code·class="inline">.rel</code>·file·with·TLS·added:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">······</span><span·class="p"·data-group-id="0275844332-1">{</span><span·class="ss">release</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0275844332-2">{</span><span·class="s">"OTP··APN·181·01"</span><span·class="p">,</span><span·class="s">"R15A&q[·...·truncated·by·diffoscope;·len:·320,·SHA:·43d76badeac27569ae570efef92a9b598bb3b555d54fde8a97b2953b242b980d·...·]-3">}</span><span·class="p">,</span><span·class="w"> |
| 151 | ······</span><span·class="p"·data-group-id=" | 151 | ······</span><span·class="p"·data-group-id="0275844332-4">[</span><span·class="p"·data-group-id="0275844332-5">{</span><span·class="ss">kernel</span><span·class="p">,</span><span·class="s">"2.15"</span><span·class="p"·data-group-id="0275844332-5">}</span><span·class="p">,</span><span·class="w"> |
| 152 | ······</span><span·class="p"·data-group-id=" | 152 | ······</span><span·class="p"·data-group-id="0275844332-6">{</span><span·class="ss">stdlib</span><span·class="p">,</span><span·class="s">"1.18"</span><span·class="p"·data-group-id="0275844332-6">}</span><span·class="p">,</span><span·class="w"> |
| 153 | ······</span><span·class="p"·data-group-id=" | 153 | ······</span><span·class="p"·data-group-id="0275844332-7">{</span><span·class="ss">crypto</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"2.0.3"</span><span·class="p"·data-group-id="0275844332-7">}</span><span·class="p">,</span><span·class="w"> |
| 154 | ······</span><span·class="p"·data-group-id=" | 154 | ······</span><span·class="p"·data-group-id="0275844332-8">{</span><span·class="ss">public_key</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"0.12"</span><span·class="p"·data-group-id="0275844332-8">}</span><span·class="p">,</span><span·class="w"> |
| 155 | ······</span><span·class="p"·data-group-id=" | 155 | ······</span><span·class="p"·data-group-id="0275844332-9">{</span><span·class="ss">asn1</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"4.0"</span><span·class="p"·data-group-id="0275844332-9">}</span><span·class="p">,</span><span·class="w"> |
| 156 | ······</span><span·class="p"·data-group-id=" | 156 | ······</span><span·class="p"·data-group-id="0275844332-10">{</span><span·class="ss">ssl</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"5.0"</span><span·class="p"·data-group-id="0275844332-10">}</span><span·class="w"> |
| 157 | ······</span><span·class="p"·data-group-id=" | 157 | ······</span><span·class="p"·data-group-id="0275844332-4">]</span><span·class="p"·data-group-id="0275844332-1">}</span><span·class="p">.</span></code></pre><p>The·version·numbers·differ·in·your·system.·Whenever·one·of·the·applications |
| 158 | included·in·the·script·is·upgraded,·change·the·script.</p><p>Do·the·following:</p><ul><li><p>Build·the·boot·script.</p><p>Assuming·the·<code·class="inline">.rel·file</code>·is·stored·in·a·file·<code·class="inline">start_ssl.rel</code>·in·the·current | 158 | included·in·the·script·is·upgraded,·change·the·script.</p><p>Do·the·following:</p><ul><li><p>Build·the·boot·script.</p><p>Assuming·the·<code·class="inline">.rel·file</code>·is·stored·in·a·file·<code·class="inline">start_ssl.rel</code>·in·the·current |
| 159 | directory,·a·boot·script·can·be·built·as·follows:</p></li></ul><pre><code·class="text">···1>·systools:make_script("start_ssl",[]).</code></pre><p>There·is·now·a·<code·class="inline">start_ssl.boot</code>·file·in·the·current·directory.</p><p>Do·the·following:</p><ul><li>Test·the·boot·script.·To·do·this,·start·Erlang·with·the·<code·class="inline">-boot</code>·command-line | 159 | directory,·a·boot·script·can·be·built·as·follows:</p></li></ul><pre><code·class="text">···1>·systools:make_script("start_ssl",[]).</code></pre><p>There·is·now·a·<code·class="inline">start_ssl.boot</code>·file·in·the·current·directory.</p><p>Do·the·following:</p><ul><li>Test·the·boot·script.·To·do·this,·start·Erlang·with·the·<code·class="inline">-boot</code>·command-line |
| 160 | parameter·specifying·this·boot·script·(with·its·full·path,·but·without·the | 160 | parameter·specifying·this·boot·script·(with·its·full·path,·but·without·the |
| 161 | <code·class="inline">.boot</code>·suffix).·In·UNIX·it·can·look·as·follows:</li></ul><pre><code·class="text">$·erl·-boot·/home/me/ssl/start_ssl | 161 | <code·class="inline">.boot</code>·suffix).·In·UNIX·it·can·look·as·follows:</li></ul><pre><code·class="text">$·erl·-boot·/home/me/ssl/start_ssl |
| 162 | Erlang·(BEAM)·emulator·version·5.0 | 162 | Erlang·(BEAM)·emulator·version·5.0 |
| 163 | Eshell·V5.0··(abort·with·^G) | 163 | Eshell·V5.0··(abort·with·^G) |
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| 197 | function·body·cannot·be·compiled·when·consulting·a·file.·Also·the·encoding | 197 | function·body·cannot·be·compiled·when·consulting·a·file.·Also·the·encoding |
| 198 | of·the·file·can·be·specified·as·defined·by·module·<a·href="../../../../lib/stdlib-7.0/doc/html/epp.html"><code·class="inline">epp</code></a>.</p></section><section·role="note"·class="admonition·warning"><h4·class="admonition-title·warning">Warning</h4><p>Do·not·tamper·with·the·socket·options·<code·class="inline">list</code>,·<code·class="inline">binary</code>,·<code·class="inline">active</code>,·<code·class="inline">packet</code>, | 198 | of·the·file·can·be·specified·as·defined·by·module·<a·href="../../../../lib/stdlib-7.0/doc/html/epp.html"><code·class="inline">epp</code></a>.</p></section><section·role="note"·class="admonition·warning"><h4·class="admonition-title·warning">Warning</h4><p>Do·not·tamper·with·the·socket·options·<code·class="inline">list</code>,·<code·class="inline">binary</code>,·<code·class="inline">active</code>,·<code·class="inline">packet</code>, |
| 199 | <code·class="inline">nodelay</code>·and·<code·class="inline">deliver</code>·since·they·are·used·by·the·distribution·protocol·handler | 199 | <code·class="inline">nodelay</code>·and·<code·class="inline">deliver</code>·since·they·are·used·by·the·distribution·protocol·handler |
| 200 | itself.·Other·raw·socket·options·such·as·<code·class="inline">packet_size</code>·may·interfere·severely, | 200 | itself.·Other·raw·socket·options·such·as·<code·class="inline">packet_size</code>·may·interfere·severely, |
| 201 | so·beware!</p></section><p>For·TLS·to·work,·at·least·a·public·key·and·a·certificate·must·be·specified·for | 201 | so·beware!</p></section><p>For·TLS·to·work,·at·least·a·public·key·and·a·certificate·must·be·specified·for |
| 202 | the·server·side·and·the·client·needs·to·specify·CAs·that·it·trusts·(client·certification | 202 | the·server·side·and·the·client·needs·to·specify·CAs·that·it·trusts·(client·certification |
| 203 | is·optional·and·requires·more·configuration).</p><p>In·the·following·example·(to·keep·it·simple),·the·PEM·file·<code·class="inline">"/home/me/ssl/erlserver.pem"</code> | 203 | is·optional·and·requires·more·configuration).</p><p>In·the·following·example·(to·keep·it·simple),·the·PEM·file·<code·class="inline">"/home/me/ssl/erlserver.pem"</code> |
| 204 | contains·both·the·server·certificate·and·its·private·key·.</p><p>Create·a·file·named·for·example·<code·class="inline">"/home/me/ssl/ssl_test@myhost.conf"</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 204 | contains·both·the·server·certificate·and·its·private·key·.</p><p>Create·a·file·named·for·example·<code·class="inline">"/home/me/ssl/ssl_test@myhost.conf"</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="9383070764-1">[</span><span·class="p"·data-group-id="9383070764-2">{</span><span·class="ss">server</span><span·class="p">,</span><span·class="w"> |
| 205 | ··</span><span·class="p"·data-group-id=" | 205 | ··</span><span·class="p"·data-group-id="9383070764-3">[</span><span·class="p"·data-group-id="9383070764-4">{</span><span·class="ss">certfile</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"/home/me/ssl/erlserver.pem"</span><span·class="p"·data-group-id="938307076[·...·truncated·by·diffoscope;·len:·107,·SHA:·60eb156673df4cbafbdaa4f2c12a59464b75946b1a3e0b0fd61ad15e1208ee52·...·]-2">}</span><span·class="p">,</span><span·class="w"> |
| 206 | ·</span><span·class="p"·data-group-id=" | 206 | ·</span><span·class="p"·data-group-id="9383070764-5">{</span><span·class="ss">client</span><span·class="p">,</span><span·class="w"> |
| 207 | ··</span><span·class="p"·data-group-id=" | 207 | ··</span><span·class="p"·data-group-id="9383070764-6">[</span><span·class="p"·data-group-id="9383070764-7">{</span><span·class="ss">cacertfile</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"/home/me/ssl/client_trusted.pem"</span><span·class="p"·data-group-id="93[·...·truncated·by·diffoscope;·len:·167,·SHA:·d97b1d900145da5486b1bd047cc212d7eb09da0c22fb9c069631a29f734682bd·...·]-1">]</span><span·class="p">.</span></code></pre><p>And·then·start·the·node·like·this·(line·breaks·in·the·command·are·for |
| 208 | readability,·and·shall·not·be·there·when·typed):</p><pre><code·class="text">$·erl·-boot·/home/me/ssl/start_ssl·-proto_dist·inet_tls | 208 | readability,·and·shall·not·be·there·when·typed):</p><pre><code·class="text">$·erl·-boot·/home/me/ssl/start_ssl·-proto_dist·inet_tls |
| 209 | ··-ssl_dist_optfile·"/home/me/ssl/ssl_test@myhost.conf" | 209 | ··-ssl_dist_optfile·"/home/me/ssl/ssl_test@myhost.conf" |
| 210 | ··-sname·ssl_test</code></pre><p>The·options·in·the·<code·class="inline">{server,·Opts}</code>·tuple·are·used·when·calling | 210 | ··-sname·ssl_test</code></pre><p>The·options·in·the·<code·class="inline">{server,·Opts}</code>·tuple·are·used·when·calling |
| 211 | <a·href="ssl.html#handshake/3"><code·class="inline">ssl:handshake/3</code></a>,·and·the·options·in·the·<code·class="inline">{client,·Opts}</code>·tuple·are·used·when | 211 | <a·href="ssl.html#handshake/3"><code·class="inline">ssl:handshake/3</code></a>,·and·the·options·in·the·<code·class="inline">{client,·Opts}</code>·tuple·are·used·when |
| 212 | calling·<a·href="ssl.html#connect/4"><code·class="inline">ssl:connect/4</code></a>.</p><p>For·the·client,·the·option·<code·class="inline">{server_name_indication,·atom_to_list(TargetNode)}</code> | 212 | calling·<a·href="ssl.html#connect/4"><code·class="inline">ssl:connect/4</code></a>.</p><p>For·the·client,·the·option·<code·class="inline">{server_name_indication,·atom_to_list(TargetNode)}</code> |
| 213 | is·added·when·connecting.·This·makes·it·possible·to·use·the·client·option | 213 | is·added·when·connecting.·This·makes·it·possible·to·use·the·client·option |
| 214 | <code·class="inline">{verify,·verify_peer}</code>,·and·the·client·will·verify·that·the·certificate·matches | 214 | <code·class="inline">{verify,·verify_peer}</code>,·and·the·client·will·verify·that·the·certificate·matches |
| Offset 270, 27 lines modified | Offset 270, 27 lines modified | ||
| 270 | in·that·variable·and·are·then·interpreted·as·command-line·arguments·for·all | 270 | in·that·variable·and·are·then·interpreted·as·command-line·arguments·for·all |
| 271 | subsequent·invocations·of·Erlang.</p><p>In·a·Unix·(Bourne)·shell,·it·can·look·as·follows·(line·breaks·are·for | 271 | subsequent·invocations·of·Erlang.</p><p>In·a·Unix·(Bourne)·shell,·it·can·look·as·follows·(line·breaks·are·for |
| 272 | readability,·they·are·not·to·be·there·when·typed):</p><pre><code·class="makeup·erlang"·translate="no"><span·class="sc">$·</span><span·class="n">ERL_FLAGS</span><span·class="o">=</span><span·class="s">"-boot·/home/me/ssl/start_ssl·-proto_dist·inet_tls | 272 | readability,·they·are·not·to·be·there·when·typed):</p><pre><code·class="makeup·erlang"·translate="no"><span·class="sc">$·</span><span·class="n">ERL_FLAGS</span><span·class="o">=</span><span·class="s">"-boot·/home/me/ssl/start_ssl·-proto_dist·inet_tls |
| 273 | ··-ssl_dist_opt·server_certfile·/home/me/ssl/erlserver.pem | 273 | ··-ssl_dist_opt·server_certfile·/home/me/ssl/erlserver.pem |
| 274 | ··-ssl_dist_opt·server_secure_renegotiate·true·client_secure_renegotiate·true"</span><span·class="w"> | 274 | ··-ssl_dist_opt·server_secure_renegotiate·true·client_secure_renegotiate·true"</span><span·class="w"> |
| 275 | </span><span·class="sc">$·</span><span·class="ss">export</span><span·class="w">·</span><span·class="n">ERL_FLAGS</span><span·class="w"> | 275 | </span><span·class="sc">$·</span><span·class="ss">export</span><span·class="w">·</span><span·class="n">ERL_FLAGS</span><span·class="w"> |
| 276 | </span><span·class="sc">$·</span><span·class="ss">erl</span><span·class="w">·</span><span·class="o">-</span><span·class="ss">sname</span><span·class="w">·</span><span·class="ss">ssl_test</span><span·class="w"> | 276 | </span><span·class="sc">$·</span><span·class="ss">erl</span><span·class="w">·</span><span·class="o">-</span><span·class="ss">sname</span><span·class="w">·</span><span·class="ss">ssl_test</span><span·class="w"> |
| 277 | </span><span·class="n">Erlang</span><span·class="w">·</span><span·class="p"·data-group-id="8 | 277 | </span><span·class="n">Erlang</span><span·class="w">·</span><span·class="p"·data-group-id="3852449217-1">(</span><span·class="n">BEAM</span><span·class="p"·data-group-id="3852449217-1">)</span><span·class="w">·</span><span·class="ss">emulator</span><span·class="w">·</span><span·class="ss">version</span><span·class="w">·</span><span·class="mf">5.[·...·truncated·by·diffoscope;·len:·156,·SHA:·7302ea7ff15b49c4668a6b2ef43306548e7ff458fa4c54e342633e30d21274b9·...·]-2">]</span><span·class="w"> |
| 278 | </span><span·class="n">Eshell</span><span·class="w">·</span><span·class="n">V5</span><span·class="p">.</span><span·class="mi">0</span><span·class="w">··</span><span·class="p"·data-group-id="8 | 278 | </span><span·class="n">Eshell</span><span·class="w">·</span><span·class="n">V5</span><span·class="p">.</span><span·class="mi">0</span><span·class="w">··</span><span·class="p"·data-group-id="3852449217-3">(</span><span·class="ss">abort</span><span·class="w">·</span><span·class="ss">with</span><span·class="w">·</span><span·class="err">^</span><span·class="n">G</span><span·class="p"·data-group-id="3852449217-3">)</span><span·class="gp·unselectable"> |
| 279 | (ssl_test@myhost)1>·</span><span·class="nc">init</span><span·class="p">:</span><span·class="nf">get_arguments</span><span·class="p"·data-group-id="8 | 279 | (ssl_test@myhost)1>·</span><span·class="nc">init</span><span·class="p">:</span><span·class="nf">get_arguments</span><span·class="p"·data-group-id="3852449217-4">(</span><span·class="p"·data-group-id="3852449217-4">)</span><span·class="p">.</span><span·class="w"> |
| 280 | </span><span·class="p"·data-group-id="8 | 280 | </span><span·class="p"·data-group-id="3852449217-5">[</span><span·class="p"·data-group-id="3852449217-6">{</span><span·class="ss">root</span><span·class="p">,</span><span·class="p"·data-group-id="3852449217-7">[</span><span·class="s">"/usr/local/erlang"</span><span·class="p"·data-gro[·...·truncated·by·diffoscope;·len:·70,·SHA:·af31ba1c22985bc15c5cb651238482d6099d50e24f6b7d47265c9ae4082e998b·...·]-6">}</span><span·class="p">,</span><span·class="w"> |
| 281 | ·</span><span·class="p"·data-group-id="8 | 281 | ·</span><span·class="p"·data-group-id="3852449217-8">{</span><span·class="ss">progname</span><span·class="p">,</span><span·class="p"·data-group-id="3852449217-9">[</span><span·class="s">"erl·"</span><span·class="p"·data-group-id="3852449217-9">]</span><span·class="p"·data-group-id="38[·...·truncated·by·diffoscope;·len:·8,·SHA:·8cfffec55d9d6885bb0494cd4304e2de443a7beff49de448687099b1b644eb36·...·]-8">}</span><span·class="p">,</span><span·class="w"> |
| 282 | ·</span><span·class="p"·data-group-id="8 | 282 | ·</span><span·class="p"·data-group-id="3852449217-10">{</span><span·class="ss">sname</span><span·class="p">,</span><span·class="p"·data-group-id="3852449217-11">[</span><span·class="s">"ssl_test"</span><span·class="p"·data-group-id="3852449217-11">]</span><span·class="p"·data-group-id[·...·truncated·by·diffoscope;·len:·12,·SHA:·ede745780d4d79315961e27f78eb3933c635213e582dad0f9638a9c825e356a3·...·]-10">}</span><span·class="p">,</span><span·class="w"> |
| 283 | ·</span><span·class="p"·data-group-id="8484558971-12">{</span><span·class="ss">boot</span><span·class="p">,</span><span·class="p"·data-group-id="8484558971-13">[</span><span·class="s">"/home/me/ssl/start_ssl"</span><span·class="p"·data-group-id="8484558971-13">]</span><span·class="p"·data-group-id="8484558971-12">}</span><span·class="p">,</span><span·class="w"> | ||
| 284 | ·</span><span·class="p"·data-group-id="8484558971-14">{</span><span·class="ss">proto_dist</span><span·class="p">,</span><span·class="p"·data-group-id="8484558971-15">[</span><span·class="s">"inet_tls"</span><span·class="p"·data-group-id="8484558971-15">]</span><span·class="p"·data-group-id="8484558971-14">}</span><span·class="p">,</span><span·class="w"> | ||
| 285 | ·</span><span·class="p"·data-group-id="8 | 283 | ·</span><span·class="p"·data-group-id="3852449217-12">{</span><span·class="ss">boot</span><span·class="p">,</span><span·class="p"·data-group-id="3852449217-13">[</span><span·class="s">"/home/me/ssl/start_ssl"</span><span·class="p"·data-group-id="3852449217-13">]</span><span·class="p"·[·...·truncated·by·diffoscope;·len:·28,·SHA:·3fb3170369972df92c27aab49296a6b3119cee014af673fa65b96328f5d8e30e·...·]">}</span><span·class="p">,</span><span·class="w"> |
| 284 | ·</span><span·class="p"·data-group-id="3852449217-14">{</span><span·class="ss">proto_dist</span><span·class="p">,</span><span·class="p"·data-group-id="3852449217-15">[</span><span·class="s">"inet_tls"</span><span·class="p"·data-group-id="3852449217-15">]</span><span·class="p"·data-group-id="3852449217-14">}</span><span·class="p">,</span><span·class="w"> | ||
| 285 | ·</span><span·class="p"·data-group-id="3852449217-16">{</span><span·class="ss">ssl_dist_opt</span><span·class="p">,</span><span·class="p"·data-group-id="3852449217-17">[</span><span·class="s">"server_certfile"</span><span·class="p">,</span><span·class="s">"/home/me/ssl/erlserver.pem"</span><span·class="p"·data-group-id="3852449217-17">]</span><span·class="p"·data-group-id="3852449217-16">}</span><span·class="p">,</span><span·class="w"> | ||
| 286 | ·</span><span·class="p"·data-group-id="8 | 286 | ·</span><span·class="p"·data-group-id="3852449217-18">{</span><span·class="ss">ssl_dist_opt</span><span·class="p">,</span><span·class="p"·data-group-id="3852449217-19">[</span><span·class="s">"server_secure_renegotiate"</span><span·class="p">,</span><span·class="s">"true"</span><span·class="p">,</span><span·class="w"> |
| 287 | ················</span><span·class="s">"client_secure_renegotiate"</span><span·class="p">,</span><span·class="s">"true"</span><span·class="p"·data-group-id="8 | 287 | ················</span><span·class="s">"client_secure_renegotiate"</span><span·class="p">,</span><span·class="s">"true"</span><span·class="p"·data-group-id="3852449217-19">]</span><span·class="w"> |
| 288 | ·</span><span·class="p"·data-group-id="8 | 288 | ·</span><span·class="p"·data-group-id="3852449217-20">{</span><span·class="ss">home</span><span·class="p">,</span><span·class="p"·data-group-id="3852449217-21">[</span><span·class="s">"/home/me"</span><span·class="p"·data-group-id="3852449217-21">]</span><span·class="p"·data-group-id=[·...·truncated·by·diffoscope;·len:·11,·SHA:·0473adf5778afe05087ed4e9e6171b6c4f7aae1ddd632a80b80cc8a372be568e·...·]-20">}</span><span·class="p">]</span></code></pre><p>The·<code·class="inline">init:get_arguments()</code>·call·verifies·that·the·correct·arguments·are·supplied |
| 289 | to·the·emulator.</p> | 289 | to·the·emulator.</p> |
| 290 | </div> | 290 | </div> |
| 291 | <div·class="bottom-actions"·id="bottom-actions"> | 291 | <div·class="bottom-actions"·id="bottom-actions"> |
| 292 | ··<div·class="bottom-actions-item"> | 292 | ··<div·class="bottom-actions-item"> |
| 293 | ······<a·href="using_ssl.html"·class="bottom-actions-button"·rel="prev"> | 293 | ······<a·href="using_ssl.html"·class="bottom-actions-button"·rel="prev"> |
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| 334 | ······<p·class="built-using"> | 334 | ······<p·class="built-using"> |
| 335 | ········Built·using | 335 | ········Built·using |
| 336 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 336 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 337 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 337 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 338 | ······</p> | 338 | ······</p> |
| 339 | <p>Copyright·©·1996-202 | 339 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 340 | ····</footer> | 340 | ····</footer> |
| 341 | ··</div> | 341 | ··</div> |
| 342 | </main> | 342 | </main> |
| 343 | </div> | 343 | </div> |
| 344 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 344 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 345 | ··<script> | 345 | ··<script> |
| 346 | ··let·initialized·=·false; | 346 | ··let·initialized·=·false; |
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| 275 | ······<p·class="built-using"> | 275 | ······<p·class="built-using"> |
| 276 | ········Built·using | 276 | ········Built·using |
| 277 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 277 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 278 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 278 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 279 | ······</p> | 279 | ······</p> |
| 280 | <p>Copyright·©·1996-202 | 280 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 281 | ····</footer> | 281 | ····</footer> |
| 282 | ··</div> | 282 | ··</div> |
| 283 | </main> | 283 | </main> |
| 284 | </div> | 284 | </div> |
| 285 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 285 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 286 | ··<script> | 286 | ··<script> |
| 287 | ··let·initialized·=·false; | 287 | ··let·initialized·=·false; |
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| 695 | ······<p·class="built-using"> | 695 | ······<p·class="built-using"> |
| 696 | ········Built·using | 696 | ········Built·using |
| 697 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 697 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 698 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 698 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 699 | ······</p> | 699 | ······</p> |
| 700 | <p>Copyright·©·1996-202 | 700 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 701 | ····</footer> | 701 | ····</footer> |
| 702 | ··</div> | 702 | ··</div> |
| 703 | </main> | 703 | </main> |
| 704 | </div> | 704 | </div> |
| 705 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 705 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 706 | ··<script> | 706 | ··<script> |
| 707 | ··let·initialized·=·false; | 707 | ··let·initialized·=·false; |
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| 256 | ······<p·class="built-using"> | 256 | ······<p·class="built-using"> |
| 257 | ········Built·using | 257 | ········Built·using |
| 258 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 258 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 259 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 259 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 260 | ······</p> | 260 | ······</p> |
| 261 | <p>Copyright·©·1996-202 | 261 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 262 | ····</footer> | 262 | ····</footer> |
| 263 | ··</div> | 263 | ··</div> |
| 264 | </main> | 264 | </main> |
| 265 | </div> | 265 | </div> |
| 266 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 266 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 267 | ··<script> | 267 | ··<script> |
| 268 | ··let·initialized·=·false; | 268 | ··let·initialized·=·false; |
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| 143 | ······<p·class="built-using"> | 143 | ······<p·class="built-using"> |
| 144 | ········Built·using | 144 | ········Built·using |
| 145 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 145 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 146 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 146 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 147 | ······</p> | 147 | ······</p> |
| 148 | <p>Copyright·©·1996-202 | 148 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 149 | ····</footer> | 149 | ····</footer> |
| 150 | ··</div> | 150 | ··</div> |
| 151 | </main> | 151 | </main> |
| 152 | </div> | 152 | </div> |
| 153 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 153 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 154 | ··<script> | 154 | ··<script> |
| 155 | ··let·initialized·=·false; | 155 | ··let·initialized·=·false; |
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| 832 | ······<p·class="built-using"> | 832 | ······<p·class="built-using"> |
| 833 | ········Built·using | 833 | ········Built·using |
| 834 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 834 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 835 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 835 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 836 | ······</p> | 836 | ······</p> |
| 837 | <p>Copyright·©·1996-202 | 837 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 838 | ····</footer> | 838 | ····</footer> |
| 839 | ··</div> | 839 | ··</div> |
| 840 | </main> | 840 | </main> |
| 841 | </div> | 841 | </div> |
| 842 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 842 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 843 | ··<script> | 843 | ··<script> |
| 844 | ··let·initialized·=·false; | 844 | ··let·initialized·=·false; |
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| 143 | ··</a> | 143 | ··</a> |
| 144 | ··<span·class="text">Quick·start</span> | 144 | ··<span·class="text">Quick·start</span> |
| 145 | </h2> | 145 | </h2> |
| 146 | <p><code·class="inline">argparse</code>·is·designed·to·work·with·<a·href="../../../../erts-16.0/doc/html/escript_cmd.html"><code·class="inline">escript</code></a>.·The | 146 | <p><code·class="inline">argparse</code>·is·designed·to·work·with·<a·href="../../../../erts-16.0/doc/html/escript_cmd.html"><code·class="inline">escript</code></a>.·The |
| 147 | example·below·is·a·fully·functioning·Erlang·program·accepting·two·command·line | 147 | example·below·is·a·fully·functioning·Erlang·program·accepting·two·command·line |
| 148 | arguments·and·printing·their·product.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="ch">#!/usr/bin/env·escript | 148 | arguments·and·printing·their·product.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="ch">#!/usr/bin/env·escript |
| 149 | </span><span·class="w"> | 149 | </span><span·class="w"> |
| 150 | </span><span·class="nf">main</span><span·class="p"·data-group-id=" | 150 | </span><span·class="nf">main</span><span·class="p"·data-group-id="1886771621-1">(</span><span·class="n">Args</span><span·class="p"·data-group-id="1886771621-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 151 | ····</span><span·class="nc">argparse</span><span·class="p">:</span><span·class="nf">run</span><span·class="p"·data-group-id=" | 151 | ····</span><span·class="nc">argparse</span><span·class="p">:</span><span·class="nf">run</span><span·class="p"·data-group-id="1886771621-2">(</span><span·class="n">Args</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">cli</span><span·class="p"·data-group-id="1886771621-3">(</span><span·class="p"·data-group-id="1886771621-3">)</span><span·class="p">,</span><s[·...·truncated·by·diffoscope;·len:·305,·SHA:·37211df01ffd62f0353d3d27ddf1b518e5827978627c6ccf448148e41d57c742·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 152 | </span><span·class="nf">cli</span><span·class="p"·data-group-id=" | 152 | </span><span·class="nf">cli</span><span·class="p"·data-group-id="1886771621-5">(</span><span·class="p"·data-group-id="1886771621-5">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 153 | ····</span><span·class="p"·data-group-id=" | 153 | ····</span><span·class="p"·data-group-id="1886771621-6">#{</span><span·class="w"> |
| 154 | ········</span><span·class="ss">arguments</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id=" | 154 | ········</span><span·class="ss">arguments</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="1886771621-7">[</span><span·class="w"> |
| 155 | ············</span><span·class="p"·data-group-id=" | 155 | ············</span><span·class="p"·data-group-id="1886771621-8">#{</span><span·class="ss">name</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">left</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">type</span><span·class="w">·</span><[·...·truncated·by·diffoscope;·len:·123,·SHA:·8882bf4e51ff31481fc82006d69da4f89712d2fcc67c207bb7ec75e59c8085f5·...·]-8">}</span><span·class="p">,</span><span·class="w"> |
| 156 | ············</span><span·class="p"·data-group-id=" | 156 | ············</span><span·class="p"·data-group-id="1886771621-9">#{</span><span·class="ss">name</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">right</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">type</span><span·class="w">·</span>[·...·truncated·by·diffoscope;·len:·124,·SHA:·55bd009f2b0c4fbf7396694bacebd5a4f8c5c1d30d1edce46817413bbf6e25aa·...·]-9">}</span><span·class="w"> |
| 157 | ········</span><span·class="p"·data-group-id=" | 157 | ········</span><span·class="p"·data-group-id="1886771621-7">]</span><span·class="p">,</span><span·class="w"> |
| 158 | ········</span><span·class="ss">handler</span><span·class="w">·</span><span·class="p">=></span><span·class="w"> | 158 | ········</span><span·class="ss">handler</span><span·class="w">·</span><span·class="p">=></span><span·class="w"> |
| 159 | ············</span><span·class="nf">fun</span><span·class="w">·</span><span·class="p"·data-group-id=" | 159 | ············</span><span·class="nf">fun</span><span·class="w">·</span><span·class="p"·data-group-id="1886771621-10">(</span><span·class="p"·data-group-id="1886771621-11">#{</span><span·class="ss">left</span><span·class="w">·</span><span·class="p">:=</span><span·class="w">·</span><span·class="n">Left</span><span·class="p">,</span><span·class="w">·</span><s[·...·truncated·by·diffoscope;·len:·223,·SHA:·f4c04bd9056f60883daf2a0e9e11b06feb2ce7a09e63def1dd8bb82a5712454d·...·]-10">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 160 | ················</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 160 | ················</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="1886771621-12">(</span><span·class="s">"</span><span·class="si">~b</span><span·class="si">~n</span><span·class="s">"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1886771621-13">[</span><span·class="n">Left<[·...·truncated·by·diffoscope;·len:·201,·SHA:·f125cae4d2717910b311af5030e28ff2c77620b087f761a05b8cfce5c78bfd27·...·]-12">)</span><span·class="w"> |
| 161 | ············</span><span·class="k">end</span><span·class="w"> | 161 | ············</span><span·class="k">end</span><span·class="w"> |
| 162 | ····</span><span·class="p"·data-group-id=" | 162 | ····</span><span·class="p"·data-group-id="1886771621-6">}</span><span·class="p">.</span></code></pre><p>Running·this·script·with·no·arguments·results·in·an·error,·accompanied·by·the |
| 163 | usage·information.</p><p>The·<code·class="inline">cli</code>·function·defines·a·single·command·with·embedded·handler·accepting·a | 163 | usage·information.</p><p>The·<code·class="inline">cli</code>·function·defines·a·single·command·with·embedded·handler·accepting·a |
| 164 | map.·Keys·of·the·map·are·argument·names·as·defined·by·the·<code·class="inline">argument</code>·field·of | 164 | map.·Keys·of·the·map·are·argument·names·as·defined·by·the·<code·class="inline">argument</code>·field·of |
| 165 | the·command,·<code·class="inline">left</code>·and·<code·class="inline">right</code>·in·the·example.·Values·are·taken·from·the | 165 | the·command,·<code·class="inline">left</code>·and·<code·class="inline">right</code>·in·the·example.·Values·are·taken·from·the |
| 166 | command·line,·and·converted·into·integers,·as·requested·by·the·type | 166 | command·line,·and·converted·into·integers,·as·requested·by·the·type |
| 167 | specification.·Both·arguments·in·the·example·above·are·required·(and·therefore | 167 | specification.·Both·arguments·in·the·example·above·are·required·(and·therefore |
| 168 | defined·as·positional).</p><h2·id="module-command-hierarchy"·class="section-heading"> | 168 | defined·as·positional).</p><h2·id="module-command-hierarchy"·class="section-heading"> |
| 169 | ··<a·href="#module-command-hierarchy"·class="hover-link"> | 169 | ··<a·href="#module-command-hierarchy"·class="hover-link"> |
| 170 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 170 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 171 | ··</a> | 171 | ··</a> |
| 172 | ··<span·class="text">Command·hierarchy</span> | 172 | ··<span·class="text">Command·hierarchy</span> |
| 173 | </h2> | 173 | </h2> |
| 174 | <p>A·command·may·contain·nested·commands,·forming·a·hierarchy.·Arguments·defined·at | 174 | <p>A·command·may·contain·nested·commands,·forming·a·hierarchy.·Arguments·defined·at |
| 175 | the·upper·level·command·are·automatically·added·to·all·nested·commands.·Nested | 175 | the·upper·level·command·are·automatically·added·to·all·nested·commands.·Nested |
| 176 | commands·example·(assuming·<code·class="inline">progname</code>·is·<code·class="inline">nested</code>):</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">cli</span><span·class="p"·data-group-id=" | 176 | commands·example·(assuming·<code·class="inline">progname</code>·is·<code·class="inline">nested</code>):</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">cli</span><span·class="p"·data-group-id="6001740681-1">(</span><span·class="p"·data-group-id="6001740681-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 177 | ··</span><span·class="p"·data-group-id=" | 177 | ··</span><span·class="p"·data-group-id="6001740681-2">#{</span><span·class="w"> |
| 178 | ····</span><span·class="c1">%%·top·level·argument·applicable·to·all·commands</span><span·class="w"> | 178 | ····</span><span·class="c1">%%·top·level·argument·applicable·to·all·commands</span><span·class="w"> |
| 179 | ····</span><span·class="ss">arguments</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id=" | 179 | ····</span><span·class="ss">arguments</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="6001740681-3">[</span><span·class="p"·data-group-id="6001740681-4">#{</span><span·class="ss">name</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">top</span><span·class="p"·data-group-id="6001740681-4">}</s[·...·truncated·by·diffoscope;·len:·43,·SHA:·0cc79a0f36b3abdb8d0ce505691baaeed139d0c991db4b401047cc59e7fac3b4·...·]81-3">]</span><span·class="p">,</span><span·class="w"> |
| 180 | ······</span><span·class="ss">commands</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id=" | 180 | ······</span><span·class="ss">commands</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="6001740681-5">#{</span><span·class="w"> |
| 181 | ········</span><span·class="s">"first"</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id=" | 181 | ········</span><span·class="s">"first"</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="6001740681-6">#{</span><span·class="w"> |
| 182 | ··········</span><span·class="c1">%%·argument·applicable·to·"first"·command·and</span><span·class="w"> | 182 | ··········</span><span·class="c1">%%·argument·applicable·to·"first"·command·and</span><span·class="w"> |
| 183 | ··········</span><span·class="c1">%%··all·commands·nested·into·"first"</span><span·class="w"> | 183 | ··········</span><span·class="c1">%%··all·commands·nested·into·"first"</span><span·class="w"> |
| 184 | ··········</span><span·class="ss">arguments</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id=" | 184 | ··········</span><span·class="ss">arguments</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="6001740681-7">[</span><span·class="p"·data-group-id="6001740681-8">#{</span><span·class="ss">name</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">mid</span><span·class="p"·data-group-id="6001740681-8">}</s[·...·truncated·by·diffoscope;·len:·43,·SHA:·0cc79a0f36b3abdb8d0ce505691baaeed139d0c991db4b401047cc59e7fac3b4·...·]81-7">]</span><span·class="p">,</span><span·class="w"> |
| 185 | ··········</span><span·class="ss">commands</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id=" | 185 | ··········</span><span·class="ss">commands</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="6001740681-9">#{</span><span·class="w"> |
| 186 | ············</span><span·class="s">"second"</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id=" | 186 | ············</span><span·class="s">"second"</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="6001740681-10">#{</span><span·class="w"> |
| 187 | ··············</span><span·class="c1">%%·argument·only·applicable·for·"second"·command</span><span·class="w"> | 187 | ··············</span><span·class="c1">%%·argument·only·applicable·for·"second"·command</span><span·class="w"> |
| 188 | ··············</span><span·class="ss">arguments</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id=" | 188 | ··············</span><span·class="ss">arguments</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="6001740681-11">[</span><span·class="p"·data-group-id="6001740681-12">#{</span><span·class="ss">name</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">bottom</span><span·class="p"·data-group-id="6001740681-12[·...·truncated·by·diffoscope;·len:·49,·SHA:·6fbfa51d97607c190b33a3103946956386c5caff0f3e17534a9bab210c2358cf·...·]81-11">]</span><span·class="p">,</span><span·class="w"> |
| 189 | ··············</span><span·class="ss">handler</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="nf">fun</span><span·class="w">·</span><span·class="p"·data-group-id=" | 189 | ··············</span><span·class="ss">handler</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="nf">fun</span><span·class="w">·</span><span·class="p"·data-group-id="6001740681-13">(</span><span·class="n">A</span><span·class="p"·data-group-id="6001740681-13">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span[·...·truncated·by·diffoscope;·len:·384,·SHA:·a698b27954de1df605eff4335c902dece855ff1678be7f772705f83e75916279·...·]81-14">)</span><span·class="w">·</span><span·class="k">end</span><span·class="w"> |
| 190 | ··········</span><span·class="p"·data-group-id=" | 190 | ··········</span><span·class="p"·data-group-id="6001740681-10">}</span><span·class="w"> |
| 191 | ········</span><span·class="p"·data-group-id=" | 191 | ········</span><span·class="p"·data-group-id="6001740681-9">}</span><span·class="w"> |
| 192 | ······</span><span·class="p"·data-group-id=" | 192 | ······</span><span·class="p"·data-group-id="6001740681-6">}</span><span·class="w"> |
| 193 | ····</span><span·class="p"·data-group-id=" | 193 | ····</span><span·class="p"·data-group-id="6001740681-5">}</span><span·class="w"> |
| 194 | ··</span><span·class="p"·data-group-id=" | 194 | ··</span><span·class="p"·data-group-id="6001740681-2">}</span><span·class="p">.</span></code></pre><p>In·the·example·above,·a·3-level·hierarchy·is·defined.·First·is·the·script·itself |
| 195 | (<code·class="inline">nested</code>),·accepting·the·only·argument·<code·class="inline">top</code>.·Since·it·has·no·associated | 195 | (<code·class="inline">nested</code>),·accepting·the·only·argument·<code·class="inline">top</code>.·Since·it·has·no·associated |
| 196 | handler,·<a·href="#run/3"><code·class="inline">run/3</code></a>·will·not·accept·user·input·omitting·nested·command·selection. | 196 | handler,·<a·href="#run/3"><code·class="inline">run/3</code></a>·will·not·accept·user·input·omitting·nested·command·selection. |
| 197 | For·this·example,·user·has·to·supply·5·arguments·in·the·command·line,·two·being | 197 | For·this·example,·user·has·to·supply·5·arguments·in·the·command·line,·two·being |
| 198 | command·names,·and·another·3·-·required·positional·arguments:</p><pre><code·class="text">./nested.erl·one·first·second·two·three | 198 | command·names,·and·another·3·-·required·positional·arguments:</p><pre><code·class="text">./nested.erl·one·first·second·two·three |
| 199 | #{top·=>·"one",mid·=>·"two",bottom·=>·"three"}</code></pre><p>Commands·have·preference·over·positional·argument·values.·In·the·example·above, | 199 | #{top·=>·"one",mid·=>·"two",bottom·=>·"three"}</code></pre><p>Commands·have·preference·over·positional·argument·values.·In·the·example·above, |
| 200 | commands·and·positional·arguments·are·interleaving,·and·<code·class="inline">argparse</code>·matches | 200 | commands·and·positional·arguments·are·interleaving,·and·<code·class="inline">argparse</code>·matches |
| 201 | command·name·first.</p><h2·id="module-arguments"·class="section-heading"> | 201 | command·name·first.</p><h2·id="module-arguments"·class="section-heading"> |
| Offset 206, 22 lines modified | Offset 206, 22 lines modified | ||
| 206 | ··<span·class="text">Arguments</span> | 206 | ··<span·class="text">Arguments</span> |
| 207 | </h2> | 207 | </h2> |
| 208 | <p><code·class="inline">argparse</code>·supports·positional·and·optional·arguments.·Optional·arguments,·or | 208 | <p><code·class="inline">argparse</code>·supports·positional·and·optional·arguments.·Optional·arguments,·or |
| 209 | options·for·short,·must·be·prefixed·with·a·special·character·(<code·class="inline">-</code>·is·the·default | 209 | options·for·short,·must·be·prefixed·with·a·special·character·(<code·class="inline">-</code>·is·the·default |
| 210 | on·all·operating·systems).·Both·options·and·positional·arguments·have·1·or·more | 210 | on·all·operating·systems).·Both·options·and·positional·arguments·have·1·or·more |
| 211 | associated·values.·See·<a·href="#t:argument/0"><code·class="inline">argument·specification</code></a>·to·find·more | 211 | associated·values.·See·<a·href="#t:argument/0"><code·class="inline">argument·specification</code></a>·to·find·more |
| 212 | details·about·supported·combinations.</p><p>In·the·user·input,·short·options·may·be·concatenated·with·their·values.·Long | 212 | details·about·supported·combinations.</p><p>In·the·user·input,·short·options·may·be·concatenated·with·their·values.·Long |
| 213 | options·support·values·separated·by·<code·class="inline">=</code>.·Consider·this·definition:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">cli</span><span·class="p"·data-group-id=" | 213 | options·support·values·separated·by·<code·class="inline">=</code>.·Consider·this·definition:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">cli</span><span·class="p"·data-group-id="3309016286-1">(</span><span·class="p"·data-group-id="3309016286-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 214 | ··</span><span·class="p"·data-group-id=" | 214 | ··</span><span·class="p"·data-group-id="3309016286-2">#{</span><span·class="w"> |
| 215 | ····</span><span·class="ss">arguments</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id=" | 215 | ····</span><span·class="ss">arguments</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="3309016286-3">[</span><span·class="w"> |
| 216 | ······</span><span·class="p"·data-group-id=" | 216 | ······</span><span·class="p"·data-group-id="3309016286-4">#{</span><span·class="ss">name</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">long</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">long</span><span·class="w">·</span><[·...·truncated·by·diffoscope;·len:·132,·SHA:·8a860b323db827e3a326db839d7034960ad85d11ba45fe479f6ee42833456786·...·]-4">}</span><span·class="p">,</span><span·class="w"> |
| 217 | ······</span><span·class="p"·data-group-id=" | 217 | ······</span><span·class="p"·data-group-id="3309016286-5">#{</span><span·class="ss">name</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">short</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">short</span><span·class="w">·</span[·...·truncated·by·diffoscope;·len:·120,·SHA:·881d19f36bc00d04bbafc5a7421e5956cdc52d080b79759e59eed67b62a0d7fe·...·]-5">}</span><span·class="w"> |
| 218 | ····</span><span·class="p"·data-group-id=" | 218 | ····</span><span·class="p"·data-group-id="3309016286-3">]</span><span·class="p">,</span><span·class="w"> |
| 219 | ····</span><span·class="ss">handler</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="nf">fun</span><span·class="w">·</span><span·class="p"·data-group-id=" | 219 | ····</span><span·class="ss">handler</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="nf">fun</span><span·class="w">·</span><span·class="p"·data-group-id="3309016286-6">(</span><span·class="n">Args</span><span·class="p"·data-group-id="3309016286-6">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</spa[·...·truncated·by·diffoscope;·len:·387,·SHA:·d55307a5eac8b523cb43874f8a0c938672776a6ff1a793e4fb0ba2adfdd99bb2·...·]-7">)</span><span·class="w">·</span><span·class="k">end</span><span·class="w"> |
| 220 | ··</span><span·class="p"·data-group-id=" | 220 | ··</span><span·class="p"·data-group-id="3309016286-2">}</span><span·class="p">.</span></code></pre><p>Running·<code·class="inline">./args·--long=VALUE</code>·prints·<code·class="inline">#{long·=>·"VALUE"}</code>,·running |
| 221 | <code·class="inline">./args·-sVALUE</code>·prints·<code·class="inline">#{short·=>·"VALUE"}</code></p><p><code·class="inline">argparse</code>·supports·boolean·flags·concatenation:·it·is·possible·to·shorten | 221 | <code·class="inline">./args·-sVALUE</code>·prints·<code·class="inline">#{short·=>·"VALUE"}</code></p><p><code·class="inline">argparse</code>·supports·boolean·flags·concatenation:·it·is·possible·to·shorten |
| 222 | <code·class="inline">-r·-f·-v</code>·to·<code·class="inline">-rfv</code>.</p><p>Shortened·option·names·are·not·supported:·it·is·not·possible·to·use·<code·class="inline">--my-argum</code> | 222 | <code·class="inline">-r·-f·-v</code>·to·<code·class="inline">-rfv</code>.</p><p>Shortened·option·names·are·not·supported:·it·is·not·possible·to·use·<code·class="inline">--my-argum</code> |
| 223 | instead·of·<code·class="inline">--my-argument-name</code>·even·when·such·option·can·be·unambiguously | 223 | instead·of·<code·class="inline">--my-argument-name</code>·even·when·such·option·can·be·unambiguously |
| 224 | found.</p> | 224 | found.</p> |
| 225 | ····</section> | 225 | ····</section> |
| 226 | </div> | 226 | </div> |
| Offset 636, 119 lines modified | Offset 636, 119 lines modified | ||
| 636 | as·optional.·Optional·arguments·do·not·have·specific·order·and·may·appear | 636 | as·optional.·Optional·arguments·do·not·have·specific·order·and·may·appear |
| 637 | anywhere·in·the·command·line.·Positional·arguments·are·ordered·the·same·way·as | 637 | anywhere·in·the·command·line.·Positional·arguments·are·ordered·the·same·way·as |
| 638 | they·appear·in·the·arguments·list·of·the·command·specification.</p><p>By·default,·all·positional·arguments·must·be·present·in·the·command·line.·The | 638 | they·appear·in·the·arguments·list·of·the·command·specification.</p><p>By·default,·all·positional·arguments·must·be·present·in·the·command·line.·The |
| 639 | parser·will·return·an·error·otherwise.·Options,·however,·may·be·omitted,·in | 639 | parser·will·return·an·error·otherwise.·Options,·however,·may·be·omitted,·in |
| 640 | which·case·resulting·argument·map·will·either·contain·the·default·value,·or·not | 640 | which·case·resulting·argument·map·will·either·contain·the·default·value,·or·not |
| 641 | have·the·key·at·all.</p><ul><li><p><strong><code·class="inline">name</code></strong>·-·Sets·the·argument·name·in·the·parsed·argument·map.·If·<code·class="inline">help</code>·is | 641 | have·the·key·at·all.</p><ul><li><p><strong><code·class="inline">name</code></strong>·-·Sets·the·argument·name·in·the·parsed·argument·map.·If·<code·class="inline">help</code>·is |
| 642 | not·defined,·name·is·also·used·to·generate·the·default·usage·message.</p></li><li><p><strong><code·class="inline">short</code></strong>·-·Defines·a·short·(single·character)·form·of·an·optional·argument.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%%·Define·a·command·accepting·argument·named·myarg,·with·short·form·$a:</span><span·class="gp·unselectable"> | 642 | not·defined,·name·is·also·used·to·generate·the·default·usage·message.</p></li><li><p><strong><code·class="inline">short</code></strong>·-·Defines·a·short·(single·character)·form·of·an·optional·argument.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%%·Define·a·command·accepting·argument·named·myarg,·with·short·form·$a:</span><span·class="gp·unselectable"> |
| 643 | 1>·</span><span·class="n">Cmd</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 643 | 1>·</span><span·class="n">Cmd</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="5927556015-1">#{</span><span·class="ss">arguments</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="5927556015-2">[</span><span·class="p"·data-group-id="5927556015-3">#{</span><span·class="ss">[·...·truncated·by·diffoscope;·len:·441,·SHA:·291ef155697b3073c7955d50f45b301510f582bbaef3d46fb306f653dee9eebb·...·]5-1">}</span><span·class="p">.</span><span·class="w"> |
| 644 | </span><span·class="c1">%%·Parse·command·line·"-a·str":</span><span·class="gp·unselectable"> | 644 | </span><span·class="c1">%%·Parse·command·line·"-a·str":</span><span·class="gp·unselectable"> |
| 645 | 2>·</span><span·class="p"·data-group-id=" | 645 | 2>·</span><span·class="p"·data-group-id="5927556015-4">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">ArgMap</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="p">,</span><span·class="w">·</span><span·class[·...·truncated·by·diffoscope;·len:·619,·SHA:·5d1d9b6332049e5647cf2e36cfd4a1184728eef1d8e791a0b9b39bed2757547c·...·]5-5">)</span><span·class="p">,</span><span·class="w">·</span><span·class="n">ArgMap</span><span·class="p">.</span><span·class="w"> |
| 646 | </span><span·class="p"·data-group-id=" | 646 | </span><span·class="p"·data-group-id="5927556015-7">#{</span><span·class="ss">myarg</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"str"</span><span·class="p"·data-group-id="5927556015-7">}</span><span·class="w"> |
| 647 | </span><span·class="c1">%%·Option·value·can·be·concatenated·with·the·switch:·"-astr"</span><span·class="gp·unselectable"> | 647 | </span><span·class="c1">%%·Option·value·can·be·concatenated·with·the·switch:·"-astr"</span><span·class="gp·unselectable"> |
| 648 | 3>·</span><span·class="p"·data-group-id=" | 648 | 3>·</span><span·class="p"·data-group-id="5927556015-8">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">ArgMap</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="p">,</span><span·class="w">·</span><span·class[·...·truncated·by·diffoscope;·len:·538,·SHA:·f56ad5f0511280258067861d050dfc2d02408c92ed6262db198009bbc6763235·...·]5-9">)</span><span·class="p">,</span><span·class="w">·</span><span·class="n">ArgMap</span><span·class="p">.</span><span·class="w"> |
| 649 | </span><span·class="p"·data-group-id=" | 649 | </span><span·class="p"·data-group-id="5927556015-11">#{</span><span·class="ss">myarg</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"str"</span><span·class="p"·data-group-id="5927556015-11">}</span></code></pre><p>By·default·all·options·expect·a·single·value·following·the·option·switch.·The |
| 650 | only·exception·is·an·option·of·a·boolean·type.</p></li><li><p><strong><code·class="inline">long</code></strong>·-·Defines·a·long·form·of·an·optional·argument.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">Cmd</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 650 | only·exception·is·an·option·of·a·boolean·type.</p></li><li><p><strong><code·class="inline">long</code></strong>·-·Defines·a·long·form·of·an·optional·argument.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">Cmd</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="3830464568-1">#{</span><span·class="ss">arguments</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="3830464568-2">[</span><span·class="p"·data-group-id="3830464568-3">#{</span><span·class="ss">[·...·truncated·by·diffoscope;·len:·453,·SHA:·dddb9acf458a8ddf86b45505799661669b385f2099720968c59fb94aeaaa8b82·...·]8-1">}</span><span·class="p">.</span><span·class="w"> |
| 651 | </span><span·class="c1">%%·Parse·command·line·"-name·Erlang":</span><span·class="gp·unselectable"> | 651 | </span><span·class="c1">%%·Parse·command·line·"-name·Erlang":</span><span·class="gp·unselectable"> |
| 652 | 2>·</span><span·class="p"·data-group-id=" | 652 | 2>·</span><span·class="p"·data-group-id="3830464568-4">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">ArgMap</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="p">,</span><span·class="w">·</span><span·class[·...·truncated·by·diffoscope;·len:·625,·SHA:·2544dd0f0b3a5fbf06f9588e2a6f75d953835a4784439236c3ccaedf54c0b56b·...·]8-5">)</span><span·class="p">,</span><span·class="w">·</span><span·class="n">ArgMap</span><span·class="p">.</span><span·class="w"> |
| 653 | </span><span·class="p"·data-group-id=" | 653 | </span><span·class="p"·data-group-id="3830464568-7">#{</span><span·class="ss">myarg</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"Erlang"</span><span·class="p"·data-group-id="3830464568-7">}</span><span·class="w"> |
| 654 | </span><span·class="c1">%%·Or·use·"="·to·separate·the·switch·and·the·value:</span><span·class="gp·unselectable"> | 654 | </span><span·class="c1">%%·Or·use·"="·to·separate·the·switch·and·the·value:</span><span·class="gp·unselectable"> |
| 655 | 3>·</span><span·class="p"·data-group-id=" | 655 | 3>·</span><span·class="p"·data-group-id="3830464568-8">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">ArgMap</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="p">,</span><span·class="w">·</span><span·class[·...·truncated·by·diffoscope;·len:·545,·SHA:·996e30ce413c890a054374997bbdf651bc2382d9c8dcdb9f6fcf615facca9643·...·]8-9">)</span><span·class="p">,</span><span·class="w">·</span><span·class="n">ArgMap</span><span·class="p">.</span><span·class="w"> |
| 656 | </span><span·class="p"·data-group-id=" | 656 | </span><span·class="p"·data-group-id="3830464568-11">#{</span><span·class="ss">myarg</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"Erlang"</span><span·class="p"·data-group-id="3830464568-11">}</span></code></pre><p>If·neither·<code·class="inline">short</code>·not·<code·class="inline">long</code>·is·defined,·the·argument·is·treated·as |
| 657 | positional.</p></li><li><p><strong><code·class="inline">required</code></strong>·-·Forces·the·parser·to·expect·the·argument·to·be·present·in·the | 657 | positional.</p></li><li><p><strong><code·class="inline">required</code></strong>·-·Forces·the·parser·to·expect·the·argument·to·be·present·in·the |
| 658 | command·line.·By·default,·all·positional·argument·are·required,·and·all | 658 | command·line.·By·default,·all·positional·argument·are·required,·and·all |
| 659 | options·are·not.</p></li><li><p><strong><code·class="inline">default</code></strong>·-·Specifies·the·default·value·to·put·in·the·parsed·argument·map | 659 | options·are·not.</p></li><li><p><strong><code·class="inline">default</code></strong>·-·Specifies·the·default·value·to·put·in·the·parsed·argument·map |
| 660 | if·the·value·is·not·supplied·in·the·command·line.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">argparse</span><span·class="p">:</span><span·class="nf">parse</span><span·class="p"·data-group-id=" | 660 | if·the·value·is·not·supplied·in·the·command·line.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">argparse</span><span·class="p">:</span><span·class="nf">parse</span><span·class="p"·data-group-id="1830336090-1">(</span><span·class="p"·data-group-id="1830336090-2">[</span><span·class="p"·data-group-id="1830336090-2">]</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1830336090-3">#{</span><span·class="ss">arguments[·...·truncated·by·diffoscope;·len:·702,·SHA:·e75a68461a5da1bed6d6c8fc2af38f2d7dc1dcd57a25d0e4ee79a3e52c0a5093·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 661 | </span><span·class="p"·data-group-id=" | 661 | </span><span·class="p"·data-group-id="1830336090-6">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="p"·data-group-id="1830336090-7">#{</span><span·class="p"·data-group-id="1830336090-7">}</span><span·class="p">,</span><span·class="w">·</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="gp·unselectable"> |
| 662 | 2>·</span><span·class="nc">argparse</span><span·class="p">:</span><span·class="nf">parse</span><span·class="p"·data-group-id=" | 662 | 2>·</span><span·class="nc">argparse</span><span·class="p">:</span><span·class="nf">parse</span><span·class="p"·data-group-id="1830336090-8">(</span><span·class="p"·data-group-id="1830336090-9">[</span><span·class="p"·data-group-id="1830336090-9">]</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1830336090-10">#{</span><span·class="ss">argument[·...·truncated·by·diffoscope;·len:·901,·SHA:·7de878ea86541e69e5451ed3cda51c4bed213ed2b40a4ffb00770746154290d1·...·]-8">)</span><span·class="p">.</span><span·class="w"> |
| 663 | </span><span·class="p"·data-group-id=" | 663 | </span><span·class="p"·data-group-id="1830336090-13">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="p"·data-group-id="1830336090-14">#{</span><span·class="ss">myarg</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"d[·...·truncated·by·diffoscope;·len:·56,·SHA:·defe4b5e860431800ddcbd517b13cdd719fafdee72a71b18b49b17c780357e19·...·]-14">}</span><span·class="p">,</span><span·class="w">·</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span></code></pre></li><li><p><strong><code·class="inline">type</code></strong>·-·Defines·type·conversion·and·validation·routine.·The·default·is |
| 664 | <code·class="inline">string</code>,·assuming·no·conversion.</p></li><li><p><strong><code·class="inline">nargs</code></strong>·-·Defines·the·number·of·following·arguments·to·consume·from·the | 664 | <code·class="inline">string</code>,·assuming·no·conversion.</p></li><li><p><strong><code·class="inline">nargs</code></strong>·-·Defines·the·number·of·following·arguments·to·consume·from·the |
| 665 | command·line.·By·default,·the·parser·consumes·the·next·argument·and·converts | 665 | command·line.·By·default,·the·parser·consumes·the·next·argument·and·converts |
| 666 | it·into·an·Erlang·term·according·to·the·specified·type.</p><ul><li><p><strong><a·href="../../../../erts-16.0/doc/html/erlang.html#t:pos_integer/0"><code·class="inline">pos_integer/0</code></a></strong>·-·Consume·exactly·this·number·of·positional·arguments, | 666 | it·into·an·Erlang·term·according·to·the·specified·type.</p><ul><li><p><strong><a·href="../../../../erts-16.0/doc/html/erlang.html#t:pos_integer/0"><code·class="inline">pos_integer/0</code></a></strong>·-·Consume·exactly·this·number·of·positional·arguments, |
| 667 | fail·if·there·is·not·enough.·Value·in·the·argument·map·contains·a·list·of | 667 | fail·if·there·is·not·enough.·Value·in·the·argument·map·contains·a·list·of |
| 668 | exactly·this·length.·Example,·defining·a·positional·argument·expecting·3 | 668 | exactly·this·length.·Example,·defining·a·positional·argument·expecting·3 |
| 669 | integer·values:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">Cmd</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 669 | integer·values:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">Cmd</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="0010575288-1">#{</span><span·class="ss">arguments</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="0010575288-2">[</span><span·class="p"·data-group-id="0010575288-3">#{</span><span·class="ss">[·...·truncated·by·diffoscope;·len:·621,·SHA:·45910df7eccbbc5144c211f4ca394ad172edb3c235fb8b6e5cbb9d885bd42d39·...·]88-1">}</span><span·class="p">,</span><span·class="w"> |
| 670 | </span><span·class="nc">argparse</span><span·class="p">:</span><span·class="nf">parse</span><span·class="p"·data-group-id=" | 670 | </span><span·class="nc">argparse</span><span·class="p">:</span><span·class="nf">parse</span><span·class="p"·data-group-id="0010575288-4">(</span><span·class="p"·data-group-id="0010575288-5">[</span><span·class="s">"1"</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"2"</span><span·class="p">,</span><span·class="w">·</span><span·class="[·...·truncated·by·diffoscope;·len:·189,·SHA:·216b38c039f853ab8e90c562de1d43eaf41038546bcc68688523a0fc8311a2ed·...·]88-4">)</span><span·class="p">.</span><span·class="w"> |
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| 132 | is·used·for·entries·that·have·not·been·explicitly·set.</p><p>Arrays·uses·<em>zero</em>-based·indexing.·This·is·a·deliberate·design·choice·and | 132 | is·used·for·entries·that·have·not·been·explicitly·set.</p><p>Arrays·uses·<em>zero</em>-based·indexing.·This·is·a·deliberate·design·choice·and |
| 133 | differs·from·other·Erlang·data·structures,·for·example,·tuples.</p><p>Unless·specified·by·the·user·when·the·array·is·created,·the·default·value·is·the | 133 | differs·from·other·Erlang·data·structures,·for·example,·tuples.</p><p>Unless·specified·by·the·user·when·the·array·is·created,·the·default·value·is·the |
| 134 | atom·<code·class="inline">undefined</code>.·There·is·no·difference·between·an·unset·entry·and·an·entry | 134 | atom·<code·class="inline">undefined</code>.·There·is·no·difference·between·an·unset·entry·and·an·entry |
| 135 | that·has·been·explicitly·set·to·the·same·value·as·the·default·one·(compare | 135 | that·has·been·explicitly·set·to·the·same·value·as·the·default·one·(compare |
| 136 | <a·href="#reset/2"><code·class="inline">reset/2</code></a>).·If·you·need·to·differentiate·between·unset·and·set·entries,·ensure | 136 | <a·href="#reset/2"><code·class="inline">reset/2</code></a>).·If·you·need·to·differentiate·between·unset·and·set·entries,·ensure |
| 137 | that·the·default·value·cannot·be·confused·with·the·values·of·set·entries.</p><p>The·array·never·shrinks·automatically.·If·an·index·<code·class="inline">I</code>·has·been·used·to·set·an | 137 | that·the·default·value·cannot·be·confused·with·the·values·of·set·entries.</p><p>The·array·never·shrinks·automatically.·If·an·index·<code·class="inline">I</code>·has·been·used·to·set·an |
| 138 | entry·successfully,·all·indices·in·the·range·<code·class="inline">[0,I]</code>·stay·accessible·unless·the | 138 | entry·successfully,·all·indices·in·the·range·<code·class="inline">[0,I]</code>·stay·accessible·unless·the |
| 139 | array·size·is·explicitly·changed·by·calling·<a·href="#resize/2"><code·class="inline">resize/2</code></a>.</p><p><em>Examples:</em></p><p>Create·a·fixed-size·array·with·entries·0-9·set·to·<code·class="inline">undefined</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">A0</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">array</span><span·class="p">:</span><span·class="nf">new</span><span·class="p"·data-group-id=" | 139 | array·size·is·explicitly·changed·by·calling·<a·href="#resize/2"><code·class="inline">resize/2</code></a>.</p><p><em>Examples:</em></p><p>Create·a·fixed-size·array·with·entries·0-9·set·to·<code·class="inline">undefined</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">A0</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">array</span><span·class="p">:</span><span·class="nf">new</span><span·class="p"·data-group-id="6278649008-1">(</span><span·class="mi">10</span><span·class="p"·data-group-id="6278649008-1">)</span><span·class="p">.</span><span·class="w"> |
| 140 | </span><span·class="mi">10</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">array</span><span·class="p">:</span><span·class="nf">size</span><span·class="p"·data-group-id=" | 140 | </span><span·class="mi">10</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">array</span><span·class="p">:</span><span·class="nf">size</span><span·class="p"·data-group-id="6278649008-2">(</span><span·class="n">A0</span><span·class="p"·data-group-id="6278649008-2">)</span><span·class="p">.</span></code></pre><p>Create·an·extendible·array·and·set·entry·17·to·<code·class="inline">true</code>,·causing·the·array·to·grow |
| 141 | automatically:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">A1</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">array</span><span·class="p">:</span><span·class="nf">set</span><span·class="p"·data-group-id=" | 141 | automatically:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">A1</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">array</span><span·class="p">:</span><span·class="nf">set</span><span·class="p"·data-group-id="5061617898-1">(</span><span·class="mi">17</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">true</span><span·class="p">,</span><span·class="w">·</span><span·class="nc">array</span><span·class="p">:</span><span·class="nf">new</span><spa[·...·truncated·by·diffoscope;·len:·143,·SHA:·369eb49eaaccde8b44c1e6e543708f0cf23ec9f23c9509b6e3e456687967d0c1·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 142 | </span><span·class="mi">18</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">array</span><span·class="p">:</span><span·class="nf">size</span><span·class="p"·data-group-id=" | 142 | </span><span·class="mi">18</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">array</span><span·class="p">:</span><span·class="nf">size</span><span·class="p"·data-group-id="5061617898-3">(</span><span·class="n">A1</span><span·class="p"·data-group-id="5061617898-3">)</span><span·class="p">.</span></code></pre><p>Read·back·a·stored·value:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="ss">true</span><span·class[·...·truncated·by·diffoscope;·len:·862,·SHA:·e5705ef6e95851d5da086b45b49e29be656ec2690517e4216bd936f347d93995·...·]-1">)</span></code></pre><p>Accessing·an·entry·beyond·the·last·set·entry·also·returns·the·default·value,·if |
| 143 | the·array·does·not·have·fixed·size:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="ss">undefined</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">array</span><span·class="p">:</span><span·class="nf">get</span><span·class="p"·data-group-id=" | 143 | the·array·does·not·have·fixed·size:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="ss">undefined</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">array</span><span·class="p">:</span><span·class="nf">get</span><span·class="p"·data-group-id="6975259832-1">(</span><span·class="mi">18</span><span·class="p">,</span><span·class="w">·</span><span·class="n">A1</span><span·class="p"·data-group-id="6975259832-1">)</span><span·class="p">.</span></code></pre><p>"Sparse"·functions·ignore·defaul[·...·truncated·by·diffoscope;·len:·515,·SHA:·32640fc8726849633e8cb975823f22dd9630dc4b4584c6e11a88519a0220006e·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 144 | </span><span·class="p"·data-group-id="2835497456-2">[</span><span·class="p"·data-group-id="2835497456-3">{</span><span·class="mi">4</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">false</span><span·class="p"·data-group-id="2835497456-3">}</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2835497456-4">{</span><span·class="mi">17</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">true</span><span·class="p"·data-group-id="2835497456-4">}</span><span·class="p"·data-group-id="2835497456-2">]</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">array</span><span·class="p">:</span><span·class="nf">sparse_to_orddict</span><span·class="p"·data-group-id="2835497456-5">(</span><span·class="n">A2</span><span·class="p"·data-group-id="2835497456-5">)</span><span·class="p">.</span></code></pre><p>An·extendible·array·can·be·made·fixed-size·later:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">A3</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">array</span><span·class="p">:</span><span·class="nf">fix</span><span·class="p"·data-group-id="1140130062-1">(</span><span·class="n">A2</span><span·class="p"·data-group-id="1140130062-1">)</span><span·class="p">.</span></code></pre><p>A·fixed-size·array·does·not·grow·automatically·and·does·not·allow·accesses | ||
| 145 | 144 | </span><span·class="p"·data-group-id="9088082921-2">[</span><span·class="p"·data-group-id="9088082921-3">{</span><span·class="mi">4</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">false</span><span·class="p"·data-group-id="9088082921[·...·truncated·by·diffoscope;·len:·1181,·SHA:·43e5d52c9768ee28e0de0e058e381c6f4ec9954353bdc212c63a6e4e612b85e5·...·] | |
| 145 | beyond·the·last·set·entry:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="9191439562-1">{</span><span·class="ss">'EXIT'</span><span·class="p">,</span><span·class="p"·data-group-id="9191439562-2">{</span><span·class="ss">badarg</span><span·class="p">,</span><span·class="p">_</span><span·class="p"·data-group-id="9191439562-2">}</span><span·class="p"·data-group-id="9191439562-1">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="9191439562-3">(</span><span·class="k">catch</span><span·class="w">·</span><span·class="nc">array</span><span·class="p">:</span><span·class="nf">set</span><span·class="p"·data-group-id="9191439562-4">(</span><span·class="mi">18</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">true</span><span·class="p">,</span><span·class="w">·</span><span·class="n">A3</span><span·class="p"·data-group-id="9191439562-4">)</span><span·class="p"·data-group-id="9191439562-3">)</span><span·class="p">.</span><span·class="w"> | ||
| 146 | </span><span·class="p"·data-group-id=" | 146 | </span><span·class="p"·data-group-id="9191439562-5">{</span><span·class="ss">'EXIT'</span><span·class="p">,</span><span·class="p"·data-group-id="9191439562-6">{</span><span·class="ss">badarg</span><span·class="p">,</span><span·class="p">_</span><span·class="p"·data-group-id="9191439562[·...·truncated·by·diffoscope;·len:·568,·SHA:·7668de5e5dae3336bd3e5ad4fa37c7634b03958daeeb31f6ed15dd48c9f449ce·...·]-7">)</span><span·class="p">.</span></code></pre> |
| 147 | ····</section> | 147 | ····</section> |
| 148 | </div> | 148 | </div> |
| 149 | ··<section·id="summary"·class="details-list"> | 149 | ··<section·id="summary"·class="details-list"> |
| 150 | ····<h1·class="section-heading"> | 150 | ····<h1·class="section-heading"> |
| 151 | ······<a·class="hover-link"·href="#summary"> | 151 | ······<a·class="hover-link"·href="#summary"> |
| Offset 1138, 15 lines modified | Offset 1138, 15 lines modified | ||
| 1138 | ······</div> | 1138 | ······</div> |
| 1139 | <p>Creates·a·new·array·according·to·the·specified·options.·By·default,·the·array·is | 1139 | <p>Creates·a·new·array·according·to·the·specified·options.·By·default,·the·array·is |
| 1140 | extendible·and·has·initial·size·zero.·Array·indices·start·at·<code·class="inline">0</code>.</p><p><code·class="inline">Options</code>·is·a·single·term·or·a·list·of·terms,·selected·from·the·following:</p><ul><li><p><strong><code·class="inline">N::integer()·>=·0</code>·or·<code·class="inline">{size,·N::integer()·>=·0}</code></strong>·-·Specifies·the·initial | 1140 | extendible·and·has·initial·size·zero.·Array·indices·start·at·<code·class="inline">0</code>.</p><p><code·class="inline">Options</code>·is·a·single·term·or·a·list·of·terms,·selected·from·the·following:</p><ul><li><p><strong><code·class="inline">N::integer()·>=·0</code>·or·<code·class="inline">{size,·N::integer()·>=·0}</code></strong>·-·Specifies·the·initial |
| 1141 | array·size;·this·also·implies·<code·class="inline">{fixed,·true}</code>.·If·<code·class="inline">N</code>·is·not·a·non-negative | 1141 | array·size;·this·also·implies·<code·class="inline">{fixed,·true}</code>.·If·<code·class="inline">N</code>·is·not·a·non-negative |
| 1142 | integer,·the·call·fails·with·reason·<code·class="inline">badarg</code>.</p></li><li><p><strong><code·class="inline">fixed</code>·or·<code·class="inline">{fixed,·true}</code></strong>·-·Creates·a·fixed-size·array.·See·also·<a·href="#fix/1"><code·class="inline">fix/1</code></a>.</p></li><li><p><strong><code·class="inline">{fixed,·false}</code></strong>·-·Creates·an·extendible·(non-fixed-size)·array.</p></li><li><p><strong><code·class="inline">{default,·Value}</code></strong>·-·Sets·the·default·value·for·the·array·to·<code·class="inline">Value</code>.</p></li></ul><p>Options·are·processed·in·the·order·they·occur·in·the·list,·that·is,·later | 1142 | integer,·the·call·fails·with·reason·<code·class="inline">badarg</code>.</p></li><li><p><strong><code·class="inline">fixed</code>·or·<code·class="inline">{fixed,·true}</code></strong>·-·Creates·a·fixed-size·array.·See·also·<a·href="#fix/1"><code·class="inline">fix/1</code></a>.</p></li><li><p><strong><code·class="inline">{fixed,·false}</code></strong>·-·Creates·an·extendible·(non-fixed-size)·array.</p></li><li><p><strong><code·class="inline">{default,·Value}</code></strong>·-·Sets·the·default·value·for·the·array·to·<code·class="inline">Value</code>.</p></li></ul><p>Options·are·processed·in·the·order·they·occur·in·the·list,·that·is,·later |
| 1143 | options·have·higher·precedence.</p><p>The·default·value·is·used·as·the·value·of·uninitialized·entries,·and·cannot·be | 1143 | options·have·higher·precedence.</p><p>The·default·value·is·used·as·the·value·of·uninitialized·entries,·and·cannot·be |
| 1144 | changed·once·the·array·has·been·created.</p><p><em>Examples:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">array</span><span·class="p">:</span><span·class="nf">new</span><span·class="p"·data-group-id=" | 1144 | changed·once·the·array·has·been·created.</p><p><em>Examples:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">array</span><span·class="p">:</span><span·class="nf">new</span><span·class="p"·data-group-id="9411126609-1">(</span><span·class="mi">100</span><span·class="p"·data-group-id="9411126609-1">)</span></code></pre><p>creates·a·fixed-size·array·of·size·100.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">array</span><span·class="p">:<[·...·truncated·by·diffoscope;·len:·1391,·SHA:·d762d17d9ee1f0e6ab250e49be95552b22cce5b629d7e5b6e1c4cf3acfd035e0·...·]-1">)</span></code></pre><p>creates·an·extendible·array·with·initial·size·10·whose·default·value·is·<code·class="inline">-1</code>.</p><p>See·also·<a·href="#fix/1"><code·class="inline">fix/1</code></a>,·<a·href="#from_list/2"><code·class="inline">from_list/2</code></a>,·<a·href="#get/2"><code·class="inline">get/2</code></a>,·<a·href="#new/0"><code·class="inline">new/0</code></a>,·<a·href="#new/2"><code·class="inline">new/2</code></a>,·<a·href="#set/3"><code·class="inline">set/3</code></a>.</p> |
| 1145 | ··</section> | 1145 | ··</section> |
| 1146 | </section> | 1146 | </section> |
| 1147 | <section·class="detail"·id="new/2"> | 1147 | <section·class="detail"·id="new/2"> |
| 1148 | ··<div·class="detail-header"> | 1148 | ··<div·class="detail-header"> |
| 1149 | ····<a·href="#new/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 1149 | ····<a·href="#new/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 1150 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 1150 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 1169, 15 lines modified | Offset 1169, 15 lines modified | ||
| 1169 | ······</div> | 1169 | ······</div> |
| 1170 | <p>Creates·a·new·array·according·to·the·specified·size·and·options.</p><p>If·<code·class="inline">Size</code>·is·not·a·non-negative·integer,·the·call·fails·with·reason·<code·class="inline">badarg</code>. | 1170 | <p>Creates·a·new·array·according·to·the·specified·size·and·options.</p><p>If·<code·class="inline">Size</code>·is·not·a·non-negative·integer,·the·call·fails·with·reason·<code·class="inline">badarg</code>. |
| 1171 | By·default,·the·array·has·fixed·size.·Notice·that·any·size·specifications·in | 1171 | By·default,·the·array·has·fixed·size.·Notice·that·any·size·specifications·in |
| 1172 | <code·class="inline">Options</code>·override·parameter·<code·class="inline">Size</code>.</p><p>If·<code·class="inline">Options</code>·is·a·list,·this·is·equivalent·to | 1172 | <code·class="inline">Options</code>·override·parameter·<code·class="inline">Size</code>.</p><p>If·<code·class="inline">Options</code>·is·a·list,·this·is·equivalent·to |
| 1173 | <a·href="#new/1"><code·class="inline">new([{size,·Size}·|·Options])</code></a>,·otherwise·it·is·equivalent·to | 1173 | <a·href="#new/1"><code·class="inline">new([{size,·Size}·|·Options])</code></a>,·otherwise·it·is·equivalent·to |
| 1174 | <a·href="#new/1"><code·class="inline">new([{size,·Size}·|·[Options]])</code></a>.·However,·using·this·function | 1174 | <a·href="#new/1"><code·class="inline">new([{size,·Size}·|·[Options]])</code></a>.·However,·using·this·function |
| 1175 | directly·is·more·efficient.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">array</span><span·class="p">:</span><span·class="nf">new</span><span·class="p"·data-group-id=" | 1175 | directly·is·more·efficient.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">array</span><span·class="p">:</span><span·class="nf">new</span><span·class="p"·data-group-id="6141945095-1">(</span><span·class="mi">100</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6141945095-2">{</span><span·class="ss">default</span><span·class="p">,</span><span·class="mi">0</span><span·class="p"·data-group[·...·truncated·by·diffoscope;·len:·68,·SHA:·eaffac0c42725a53ce21c7a3adf33ecb14fa0bbdf1d81b1b261e636dbdbbf6fa·...·]-1">)</span></code></pre><p>creates·a·fixed-size·array·of·size·100,·whose·default·value·is·<code·class="inline">0</code>.</p><p>See·also·<a·href="#new/1"><code·class="inline">new/1</code></a>.</p> |
| 1176 | ··</section> | 1176 | ··</section> |
| 1177 | </section> | 1177 | </section> |
| 1178 | <section·class="detail"·id="relax/1"> | 1178 | <section·class="detail"·id="relax/1"> |
| 1179 | ··<div·class="detail-header"> | 1179 | ··<div·class="detail-header"> |
| 1180 | ····<a·href="#relax/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 1180 | ····<a·href="#relax/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 1181 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 1181 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 1583, 15 lines modified | Offset 1583, 15 lines modified | ||
| 1583 | ······<p·class="built-using"> | 1583 | ······<p·class="built-using"> |
| 1584 | ········Built·using | 1584 | ········Built·using |
| 1585 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1585 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1586 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1586 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1587 | ······</p> | 1587 | ······</p> |
| 1588 | <p>Copyright·©·1996-202 | 1588 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1589 | ····</footer> | 1589 | ····</footer> |
| 1590 | ··</div> | 1590 | ··</div> |
| 1591 | </main> | 1591 | </main> |
| 1592 | </div> | 1592 | </div> |
| 1593 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1593 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1594 | ··<script> | 1594 | ··<script> |
| 1595 | ··let·initialized·=·false; | 1595 | ··let·initialized·=·false; |
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| 128 | <p>Assert·macros.</p><h2·id="description"·class="section-heading"> | 128 | <p>Assert·macros.</p><h2·id="description"·class="section-heading"> |
| 129 | ··<a·href="#description"·class="hover-link"> | 129 | ··<a·href="#description"·class="hover-link"> |
| 130 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 130 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 131 | ··</a> | 131 | ··</a> |
| 132 | ··<span·class="text">Description</span> | 132 | ··<span·class="text">Description</span> |
| 133 | </h2> | 133 | </h2> |
| 134 | <p>The·include·file·<code·class="inline">assert.hrl</code>·provides·macros·for·inserting·assertions·in·your | 134 | <p>The·include·file·<code·class="inline">assert.hrl</code>·provides·macros·for·inserting·assertions·in·your |
| 135 | program·code.</p><p>Include·the·following·directive·in·the·module·from·which·the·function·is·called:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id=" | 135 | program·code.</p><p>Include·the·following·directive·in·the·module·from·which·the·function·is·called:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id="0454683636-1">(</span><span·class="s">"stdlib/include/assert.hrl"</span><span·class="p"·data-group-id="0454683636-1">)</span><span·class="p">.</span></code></pre><p>When·an·assertion·succeeds,·the·assert·macro·yields·the·atom·<code·class="inline">ok</code>.·When·an |
| 136 | assertion·fails,·an·exception·of·type·<code·class="inline">error</code>·is·generated.·The·associated·error | 136 | assertion·fails,·an·exception·of·type·<code·class="inline">error</code>·is·generated.·The·associated·error |
| 137 | term·has·the·form·<code·class="inline">{Macro,·Info}</code>.·<code·class="inline">Macro</code>·is·the·macro·name,·for·example, | 137 | term·has·the·form·<code·class="inline">{Macro,·Info}</code>.·<code·class="inline">Macro</code>·is·the·macro·name,·for·example, |
| 138 | <code·class="inline">assertEqual</code>.·<code·class="inline">Info</code>·is·a·list·of·tagged·values,·such·as | 138 | <code·class="inline">assertEqual</code>.·<code·class="inline">Info</code>·is·a·list·of·tagged·values,·such·as |
| 139 | <code·class="inline">[{module,·M},·{line,·L},·...]</code>,·which·gives·more·information·about·the·location | 139 | <code·class="inline">[{module,·M},·{line,·L},·...]</code>,·which·gives·more·information·about·the·location |
| 140 | and·cause·of·the·exception.·All·entries·in·the·<code·class="inline">Info</code>·list·are·optional;·do·not | 140 | and·cause·of·the·exception.·All·entries·in·the·<code·class="inline">Info</code>·list·are·optional;·do·not |
| 141 | rely·programmatically·on·any·of·them·being·present.</p><p>Each·assert·macro·has·a·corresponding·version·with·an·extra·argument,·for·adding | 141 | rely·programmatically·on·any·of·them·being·present.</p><p>Each·assert·macro·has·a·corresponding·version·with·an·extra·argument,·for·adding |
| 142 | comments·to·assertions.·These·can·for·example·be·printed·as·part·of·error | 142 | comments·to·assertions.·These·can·for·example·be·printed·as·part·of·error |
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| 156 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 156 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 157 | ··</a> | 157 | ··</a> |
| 158 | ··<span·class="text">Macros</span> | 158 | ··<span·class="text">Macros</span> |
| 159 | </h2> | 159 | </h2> |
| 160 | <ul><li><p><strong><code·class="inline">assert(BoolExpr)</code></strong></p></li><li><p><strong><code·class="inline">assert(BoolExpr,·Comment)</code></strong>·-·Tests·that·<code·class="inline">BoolExpr</code>·completes·normally | 160 | <ul><li><p><strong><code·class="inline">assert(BoolExpr)</code></strong></p></li><li><p><strong><code·class="inline">assert(BoolExpr,·Comment)</code></strong>·-·Tests·that·<code·class="inline">BoolExpr</code>·completes·normally |
| 161 | returning·<code·class="inline">true</code>.</p></li><li><p><strong><code·class="inline">assertNot(BoolExpr)</code></strong></p></li><li><p><strong><code·class="inline">assertNot(BoolExpr,·Comment)</code></strong>·-·Tests·that·<code·class="inline">BoolExpr</code>·completes·normally | 161 | returning·<code·class="inline">true</code>.</p></li><li><p><strong><code·class="inline">assertNot(BoolExpr)</code></strong></p></li><li><p><strong><code·class="inline">assertNot(BoolExpr,·Comment)</code></strong>·-·Tests·that·<code·class="inline">BoolExpr</code>·completes·normally |
| 162 | returning·<code·class="inline">false</code>.</p></li><li><p><strong><code·class="inline">assertMatch(GuardedPattern,·Expr)</code></strong></p></li><li><p><strong><code·class="inline">assertMatch(GuardedPattern,·Expr,·Comment)</code></strong>·-·Tests·that·<code·class="inline">Expr</code>·completes | 162 | returning·<code·class="inline">false</code>.</p></li><li><p><strong><code·class="inline">assertMatch(GuardedPattern,·Expr)</code></strong></p></li><li><p><strong><code·class="inline">assertMatch(GuardedPattern,·Expr,·Comment)</code></strong>·-·Tests·that·<code·class="inline">Expr</code>·completes |
| 163 | normally·yielding·a·value·that·matches·<code·class="inline">GuardedPattern</code>,·for·example:</p><pre><code·class="text">?assertMatch({bork,·_},·f())</code></pre><p>Notice·that·a·guard·<code·class="inline">when·...</code>·can·be·included:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="o">?</span><span·class="nf">assertMatch</span><span·class="p"·data-group-id=" | 163 | normally·yielding·a·value·that·matches·<code·class="inline">GuardedPattern</code>,·for·example:</p><pre><code·class="text">?assertMatch({bork,·_},·f())</code></pre><p>Notice·that·a·guard·<code·class="inline">when·...</code>·can·be·included:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="o">?</span><span·class="nf">assertMatch</span><span·class="p"·data-group-id="5750263060-1">(</span><span·class="p"·data-group-id="5750263060-2">{</span><span·class="ss">bork</span><span·class="p">,</span><span·class="w">·</span><span·class="n">X</span><span·class="p"·data-group-id="5750263060-2">}</span><span·class="w">·</span><spa[·...·truncated·by·diffoscope;·len:·391,·SHA:·ced5a85d34098fe4d157579a57c6361aab63b10686fa291c2ffe6abe4c85a40a·...·]-1">)</span></code></pre></li><li><p><strong><code·class="inline">assertNotMatch(GuardedPattern,·Expr)</code></strong></p></li><li><p><strong><code·class="inline">assertNotMatch(GuardedPattern,·Expr,·Comment)</code></strong>·-·Tests·that·<code·class="inline">Expr</code> |
| 164 | completes·normally·yielding·a·value·that·does·not·match·<code·class="inline">GuardedPattern</code>.</p><p>As·in·<code·class="inline">assertMatch</code>,·<code·class="inline">GuardedPattern</code>·can·have·a·<code·class="inline">when</code>·part.</p></li><li><p><strong><code·class="inline">assertEqual(ExpectedValue,·Expr)</code></strong></p></li><li><p><strong><code·class="inline">assertEqual(ExpectedValue,·Expr,·Comment)</code></strong>·-·Tests·that·<code·class="inline">Expr</code>·completes | 164 | completes·normally·yielding·a·value·that·does·not·match·<code·class="inline">GuardedPattern</code>.</p><p>As·in·<code·class="inline">assertMatch</code>,·<code·class="inline">GuardedPattern</code>·can·have·a·<code·class="inline">when</code>·part.</p></li><li><p><strong><code·class="inline">assertEqual(ExpectedValue,·Expr)</code></strong></p></li><li><p><strong><code·class="inline">assertEqual(ExpectedValue,·Expr,·Comment)</code></strong>·-·Tests·that·<code·class="inline">Expr</code>·completes |
| 165 | normally·yielding·a·value·that·is·exactly·equal·to·<code·class="inline">ExpectedValue</code>.</p></li><li><p><strong><code·class="inline">assertNotEqual(ExpectedValue,·Expr)</code></strong></p></li><li><p><strong><code·class="inline">assertNotEqual(ExpectedValue,·Expr,·Comment)</code></strong>·-·Tests·that·<code·class="inline">Expr</code> | 165 | normally·yielding·a·value·that·is·exactly·equal·to·<code·class="inline">ExpectedValue</code>.</p></li><li><p><strong><code·class="inline">assertNotEqual(ExpectedValue,·Expr)</code></strong></p></li><li><p><strong><code·class="inline">assertNotEqual(ExpectedValue,·Expr,·Comment)</code></strong>·-·Tests·that·<code·class="inline">Expr</code> |
| 166 | completes·normally·yielding·a·value·that·is·not·exactly·equal·to | 166 | completes·normally·yielding·a·value·that·is·not·exactly·equal·to |
| 167 | <code·class="inline">ExpectedValue</code>.</p></li><li><p><strong><code·class="inline">assertException(Class,·Term,·Expr)</code></strong></p></li><li><p><strong><code·class="inline">assertException(Class,·Term,·Expr,·Comment)</code></strong>·-·Tests·that·<code·class="inline">Expr</code> | 167 | <code·class="inline">ExpectedValue</code>.</p></li><li><p><strong><code·class="inline">assertException(Class,·Term,·Expr)</code></strong></p></li><li><p><strong><code·class="inline">assertException(Class,·Term,·Expr,·Comment)</code></strong>·-·Tests·that·<code·class="inline">Expr</code> |
| 168 | completes·abnormally·with·an·exception·of·type·<code·class="inline">Class</code>·and·with·the·associated | 168 | completes·abnormally·with·an·exception·of·type·<code·class="inline">Class</code>·and·with·the·associated |
| 169 | <code·class="inline">Term</code>.·The·assertion·fails·if·<code·class="inline">Expr</code>·raises·a·different·exception·or·if·it | 169 | <code·class="inline">Term</code>.·The·assertion·fails·if·<code·class="inline">Expr</code>·raises·a·different·exception·or·if·it |
| 170 | completes·normally·returning·any·value.</p><p>Notice·that·both·<code·class="inline">Class</code>·and·<code·class="inline">Term</code>·can·be·guarded·patterns,·as·in | 170 | completes·normally·returning·any·value.</p><p>Notice·that·both·<code·class="inline">Class</code>·and·<code·class="inline">Term</code>·can·be·guarded·patterns,·as·in |
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| 218 | ······<p·class="built-using"> | 218 | ······<p·class="built-using"> |
| 219 | ········Built·using | 219 | ········Built·using |
| 220 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 220 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 221 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 221 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 222 | ······</p> | 222 | ······</p> |
| 223 | <p>Copyright·©·1996-202 | 223 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 224 | ····</footer> | 224 | ····</footer> |
| 225 | ··</div> | 225 | ··</div> |
| 226 | </main> | 226 | </main> |
| 227 | </div> | 227 | </div> |
| 228 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 228 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 229 | ··<script> | 229 | ··<script> |
| 230 | ··let·initialized·=·false; | 230 | ··let·initialized·=·false; |
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| 649 | ····················Data·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:binary/0">binary</a>().</pre> | 649 | ····················Data·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:binary/0">binary</a>().</pre> |
| 650 | ······</div> | 650 | ······</div> |
| 651 | <p>Decodes·a·base64·string·encoded·using·the·standard·alphabet·according·to | 651 | <p>Decodes·a·base64·string·encoded·using·the·standard·alphabet·according·to |
| 652 | <a·href="https://datatracker.ietf.org/doc/html/rfc4648#section-4">RFC·4648·Section·4</a>·to | 652 | <a·href="https://datatracker.ietf.org/doc/html/rfc4648#section-4">RFC·4648·Section·4</a>·to |
| 653 | plain·ASCII.</p><p>The·function·will·strips·away·any·whitespace·characters·and·check·for·the | 653 | plain·ASCII.</p><p>The·function·will·strips·away·any·whitespace·characters·and·check·for·the |
| 654 | the·correct·number·of·<code·class="inline">=</code>·padding·characters·at·the·end·of·the·encoded·string.</p><p>See·<a·href="#t:decode_options/0"><code·class="inline">decode_options/0</code></a>·for·details·on·which·options·can·be·passed.</p><p><em>Example</em>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">base64</span><span·class="p">:</span><span·class="nf">decode</span><span·class="p"·data-group-id="7 | 654 | the·correct·number·of·<code·class="inline">=</code>·padding·characters·at·the·end·of·the·encoded·string.</p><p>See·<a·href="#t:decode_options/0"><code·class="inline">decode_options/0</code></a>·for·details·on·which·options·can·be·passed.</p><p><em>Example</em>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">base64</span><span·class="p">:</span><span·class="nf">decode</span><span·class="p"·data-group-id="7461941310-1">(</span><span·class="s">"AQIDBA=="</span><span·class="p"·data-group-id="7461941310-1">)</span><span·class="p">.</span><span·class="w"> |
| 655 | </span><span·class="p"·data-group-id="7 | 655 | </span><span·class="p"·data-group-id="7461941310-2"><<</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">2</span><span·class="p">,</span><span·class="mi">3</span><span·class="p">,</span><span·class="mi">4</span><span·class="p"·data-group-id="7461941310-2">>></span><span·class="gp·unselectable"> |
| 656 | 2>·</span><span·class="nc">base64</span><span·class="p">:</span><span·class="nf">decode</span><span·class="p"·data-group-id="7 | 656 | 2>·</span><span·class="nc">base64</span><span·class="p">:</span><span·class="nf">decode</span><span·class="p"·data-group-id="7461941310-3">(</span><span·class="s">"AQ·ID·BA=="</span><span·class="p"·data-group-id="7461941310-3">)</span><span·class="p">.</span><span·class="w"> |
| 657 | </span><span·class="p"·data-group-id="7 | 657 | </span><span·class="p"·data-group-id="7461941310-4"><<</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">2</span><span·class="p">,</span><span·class="mi">3</span><span·class="p">,</span><span·class="mi">4</span><span·class="p"·data-group-id="7461941310-4">>></span><span·class="gp·unselectable"> |
| 658 | 3>·</span><span·class="nc">base64</span><span·class="p">:</span><span·class="nf">decode</span><span·class="p"·data-group-id="7 | 658 | 3>·</span><span·class="nc">base64</span><span·class="p">:</span><span·class="nf">decode</span><span·class="p"·data-group-id="7461941310-5">(</span><span·class="s">"AQIDBA="</span><span·class="p"·data-group-id="7461941310-5">)</span><span·class="p">.</span><span·class="w"> |
| 659 | </span><span·class="gt">**·exception·error:·missing_padding | 659 | </span><span·class="gt">**·exception·error:·missing_padding |
| 660 | ·····in·function··base64:decode_list/7·(base64.erl,·line·734) | 660 | ·····in·function··base64:decode_list/7·(base64.erl,·line·734) |
| 661 | ········***·data·to·decode·is·missing·final·=·padding·characters,·if·this·is·intended,·use·the·`padding·=>·false`·option</span><span·class="gp·unselectable"> | 661 | ········***·data·to·decode·is·missing·final·=·padding·characters,·if·this·is·intended,·use·the·`padding·=>·false`·option</span><span·class="gp·unselectable"> |
| 662 | 4>·</span><span·class="nc">base64</span><span·class="p">:</span><span·class="nf">decode</span><span·class="p"·data-group-id="7 | 662 | 4>·</span><span·class="nc">base64</span><span·class="p">:</span><span·class="nf">decode</span><span·class="p"·data-group-id="7461941310-6">(</span><span·class="s">"AQIDBA="</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="7461941310-7">#{</span><span·class="w">·</span><span·class="ss">padding</span><span·class="w">·</span><span·class=[·...·truncated·by·diffoscope;·len:·187,·SHA:·2b7a89b7984466411c51e5654970e73d7bff14173236855c15a1347ae3b0b666·...·]-6">)</span><span·class="p">.</span><span·class="w"> |
| 663 | </span><span·class="p"·data-group-id="7 | 663 | </span><span·class="p"·data-group-id="7461941310-8"><<</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">2</span><span·class="p">,</span><span·class="mi">3</span><span·class="p">,</span><span·class="mi">4</span><span·class="p"·data-group-id="7461941310-8">>></span></code></pre> |
| 664 | ··</section> | 664 | ··</section> |
| 665 | </section> | 665 | </section> |
| 666 | <section·class="detail"·id="decode_to_string/1"> | 666 | <section·class="detail"·id="decode_to_string/1"> |
| 667 | ··<div·class="detail-header"> | 667 | ··<div·class="detail-header"> |
| 668 | ····<a·href="#decode_to_string/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 668 | ····<a·href="#decode_to_string/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 669 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 669 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
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| 896 | ·························Data·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:binary/0">binary</a>().</pre> | 896 | ·························Data·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:binary/0">binary</a>().</pre> |
| 897 | ······</div> | 897 | ······</div> |
| 898 | <p>Decodes·a·base64·"mime"·string·encoded·using·the·standard·alphabet·according·to | 898 | <p>Decodes·a·base64·"mime"·string·encoded·using·the·standard·alphabet·according·to |
| 899 | <a·href="https://datatracker.ietf.org/doc/html/rfc4648#section-4">RFC·4648·Section·4</a>·to | 899 | <a·href="https://datatracker.ietf.org/doc/html/rfc4648#section-4">RFC·4648·Section·4</a>·to |
| 900 | plain·ASCII.</p><p>The·function·will·strips·away·any·illegal·characters.·It·does·<em>not</em>·check·for·the | 900 | plain·ASCII.</p><p>The·function·will·strips·away·any·illegal·characters.·It·does·<em>not</em>·check·for·the |
| 901 | the·correct·number·of·<code·class="inline">=</code>·padding·characters·at·the·end·of·the·encoded·string.</p><p>See·<a·href="#t:decode_options/0"><code·class="inline">decode_options/0</code></a>·for·details·on·which·options·can·be·passed.</p><p><em>Example</em>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">base64</span><span·class="p">:</span><span·class="nf">mime_decode</span><span·class="p"·data-group-id=" | 901 | the·correct·number·of·<code·class="inline">=</code>·padding·characters·at·the·end·of·the·encoded·string.</p><p>See·<a·href="#t:decode_options/0"><code·class="inline">decode_options/0</code></a>·for·details·on·which·options·can·be·passed.</p><p><em>Example</em>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">base64</span><span·class="p">:</span><span·class="nf">mime_decode</span><span·class="p"·data-group-id="0983402674-1">(</span><span·class="s">"AQIDBA=="</span><span·class="p"·data-group-id="0983402674-1">)</span><span·class="p">.</span><span·class="w"> |
| 902 | </span><span·class="p"·data-group-id=" | 902 | </span><span·class="p"·data-group-id="0983402674-2"><<</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">2</span><span·class="p">,</span><span·class="mi">3</span><span·class="p">,</span><span·class="mi">4</span><span·class="p"·data-group-id="0983402674-2">>></span><span·class="gp·unselectable"> |
| 903 | 2>·</span><span·class="nc">base64</span><span·class="p">:</span><span·class="nf">mime_decode</span><span·class="p"·data-group-id=" | 903 | 2>·</span><span·class="nc">base64</span><span·class="p">:</span><span·class="nf">mime_decode</span><span·class="p"·data-group-id="0983402674-3">(</span><span·class="s">"AQIDB=A="</span><span·class="p"·data-group-id="0983402674-3">)</span><span·class="p">.</span><span·class="w"> |
| 904 | </span><span·class="p"·data-group-id=" | 904 | </span><span·class="p"·data-group-id="0983402674-4"><<</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">2</span><span·class="p">,</span><span·class="mi">3</span><span·class="p">,</span><span·class="mi">4</span><span·class="p"·data-group-id="0983402674-4">>></span></code></pre> |
| 905 | ··</section> | 905 | ··</section> |
| 906 | </section> | 906 | </section> |
| 907 | <section·class="detail"·id="mime_decode_to_string/1"> | 907 | <section·class="detail"·id="mime_decode_to_string/1"> |
| 908 | ··<div·class="detail-header"> | 908 | ··<div·class="detail-header"> |
| 909 | ····<a·href="#mime_decode_to_string/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 909 | ····<a·href="#mime_decode_to_string/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 910 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 910 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
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| 991 | ······<p·class="built-using"> | 991 | ······<p·class="built-using"> |
| 992 | ········Built·using | 992 | ········Built·using |
| 993 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 993 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 994 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 994 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 995 | ······</p> | 995 | ······</p> |
| 996 | <p>Copyright·©·1996-202 | 996 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 997 | ····</footer> | 997 | ····</footer> |
| 998 | ··</div> | 998 | ··</div> |
| 999 | </main> | 999 | </main> |
| 1000 | </div> | 1000 | </div> |
| 1001 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1001 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1002 | ··<script> | 1002 | ··<script> |
| 1003 | ··let·initialized·=·false; | 1003 | ··let·initialized·=·false; |
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| 147 | <a·href="#strip_files/1"><code·class="inline">strip_files/1</code></a>,·and/or·<a·href="#strip_release/1"><code·class="inline">strip_release/1</code></a>.</p><h2·id="module-reconstruct-source-code"·class="section-heading"> | 147 | <a·href="#strip_files/1"><code·class="inline">strip_files/1</code></a>,·and/or·<a·href="#strip_release/1"><code·class="inline">strip_release/1</code></a>.</p><h2·id="module-reconstruct-source-code"·class="section-heading"> |
| 148 | ··<a·href="#module-reconstruct-source-code"·class="hover-link"> | 148 | ··<a·href="#module-reconstruct-source-code"·class="hover-link"> |
| 149 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 149 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 150 | ··</a> | 150 | ··</a> |
| 151 | ··<span·class="text">Reconstruct·Source·Code</span> | 151 | ··<span·class="text">Reconstruct·Source·Code</span> |
| 152 | </h2> | 152 | </h2> |
| 153 | <p>The·following·example·shows·how·to·reconstruct·Erlang·source·code·from·the·debug | 153 | <p>The·following·example·shows·how·to·reconstruct·Erlang·source·code·from·the·debug |
| 154 | information·in·a·BEAM·file·<code·class="inline">Beam</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 154 | information·in·a·BEAM·file·<code·class="inline">Beam</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="2374096171-1">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="p"·data-group-id="2374096171-2">{</span><span·class="p">_</span><span·class="p">,</span><span·class="p"·data-group-id="2374096171-3">[</span><span·class="p"·data-group-id=[·...·truncated·by·diffoscope;·len:·921,·SHA:·a099fa1c661112410db4e4319603a2acaa119a79e91497e9ad08d787654fad8d·...·]-6">)</span><span·class="p">.</span><span·class="w"> |
| 155 | </span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">fwrite</span><span·class="p"·data-group-id=" | 155 | </span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">fwrite</span><span·class="p"·data-group-id="2374096171-8">(</span><span·class="s">"</span><span·class="si">~s</span><span·class="si">~n</span><span·class="s">"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2374096171-9">[</span><span·class="nc">erl_pr[·...·truncated·by·diffoscope;·len:·493,·SHA:·ec2cabd117f7d184fc163c7e10d6cd28735a80561081132922795df4f055b8c9·...·]-8">)</span><span·class="p">.</span></code></pre><h2·id="module-encrypted-debug-information"·class="section-heading"> |
| 156 | ··<a·href="#module-encrypted-debug-information"·class="hover-link"> | 156 | ··<a·href="#module-encrypted-debug-information"·class="hover-link"> |
| 157 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 157 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 158 | ··</a> | 158 | ··</a> |
| 159 | ··<span·class="text">Encrypted·Debug·Information</span> | 159 | ··<span·class="text">Encrypted·Debug·Information</span> |
| 160 | </h2> | 160 | </h2> |
| 161 | <p>The·debug·information·can·be·encrypted·to·keep·the·source·code·secret,·but·still | 161 | <p>The·debug·information·can·be·encrypted·to·keep·the·source·code·secret,·but·still |
| 162 | be·able·to·use·tools·such·as·Debugger·or·Xref.</p><p>To·use·encrypted·debug·information,·a·key·must·be·provided·to·the·compiler·and | 162 | be·able·to·use·tools·such·as·Debugger·or·Xref.</p><p>To·use·encrypted·debug·information,·a·key·must·be·provided·to·the·compiler·and |
| Offset 178, 21 lines modified | Offset 178, 21 lines modified | ||
| 178 | ··</a> | 178 | ··</a> |
| 179 | ··<span·class="text">.erlang.crypt</span> | 179 | ··<span·class="text">.erlang.crypt</span> |
| 180 | </h2> | 180 | </h2> |
| 181 | <p><code·class="inline">beam_lib</code>·searches·for·<code·class="inline">.erlang.crypt</code>·in·the·current·directory,·then·the | 181 | <p><code·class="inline">beam_lib</code>·searches·for·<code·class="inline">.erlang.crypt</code>·in·the·current·directory,·then·the |
| 182 | <a·href="../../../../erts-16.0/doc/html/init.html#home">user's·home·directory</a>·and·then | 182 | <a·href="../../../../erts-16.0/doc/html/init.html#home">user's·home·directory</a>·and·then |
| 183 | <a·href="filename.html#user_config"><code·class="inline">filename:basedir(user_config,·"erlang")</code></a>.·If·the | 183 | <a·href="filename.html#user_config"><code·class="inline">filename:basedir(user_config,·"erlang")</code></a>.·If·the |
| 184 | file·is·found·and·contains·a·key,·<code·class="inline">beam_lib</code>·implicitly·creates·a·crypto·key·fun | 184 | file·is·found·and·contains·a·key,·<code·class="inline">beam_lib</code>·implicitly·creates·a·crypto·key·fun |
| 185 | and·registers·it.</p><p>File·<code·class="inline">.erlang.crypt</code>·is·to·contain·a·single·list·of·tuples:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 185 | and·registers·it.</p><p>File·<code·class="inline">.erlang.crypt</code>·is·to·contain·a·single·list·of·tuples:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="8536471972-1">{</span><span·class="ss">debug_info</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Mode</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Module</span><span·class="p">,</span><span·class="w">·</span>[·...·truncated·by·diffoscope;·len:·67,·SHA:·9045c348addcde05d0628cd9f68fdd960839f502ca98621091c739d567267e34·...·]-1">}</span></code></pre><p><code·class="inline">Mode</code>·is·the·type·of·crypto·algorithm;·currently,·the·only·allowed·value·is |
| 186 | <code·class="inline">des3_cbc</code>.·<code·class="inline">Module</code>·is·either·an·atom,·in·which·case·<code·class="inline">Key</code>·is·only·used·for·the | 186 | <code·class="inline">des3_cbc</code>.·<code·class="inline">Module</code>·is·either·an·atom,·in·which·case·<code·class="inline">Key</code>·is·only·used·for·the |
| 187 | module·<code·class="inline">Module</code>,·or·<code·class="inline">[]</code>,·in·which·case·<code·class="inline">Key</code>·is·used·for·all·modules.·<code·class="inline">Key</code>·is | 187 | module·<code·class="inline">Module</code>,·or·<code·class="inline">[]</code>,·in·which·case·<code·class="inline">Key</code>·is·used·for·all·modules.·<code·class="inline">Key</code>·is |
| 188 | the·non-empty·key·string.</p><p><code·class="inline">Key</code>·in·the·first·tuple·where·both·<code·class="inline">Mode</code>·and·<code·class="inline">Module</code>·match·is·used.</p><p>The·following·is·an·example·of·an·<code·class="inline">.erlang.crypt</code>·file·that·returns·the·same·key | 188 | the·non-empty·key·string.</p><p><code·class="inline">Key</code>·in·the·first·tuple·where·both·<code·class="inline">Mode</code>·and·<code·class="inline">Module</code>·match·is·used.</p><p>The·following·is·an·example·of·an·<code·class="inline">.erlang.crypt</code>·file·that·returns·the·same·key |
| 189 | for·all·modules:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="9 | 189 | for·all·modules:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="2979573189-1">[</span><span·class="p"·data-group-id="2979573189-2">{</span><span·class="ss">debug_info</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">des3_cbc</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·dat[·...·truncated·by·diffoscope;·len:·303,·SHA:·d2e3efbbc8935809ace0190e35a057d5c06fcf0ae69cba276e4d691a6676a429·...·]-1">]</span><span·class="p">.</span></code></pre><p>The·following·is·a·slightly·more·complicated·example·of·an·<code·class="inline">.erlang.crypt</code> |
| 190 | providing·one·key·for·module·<code·class="inline">t</code>·and·another·key·for·all·other·modules:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="0 | 190 | providing·one·key·for·module·<code·class="inline">t</code>·and·another·key·for·all·other·modules:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="2078379061-1">[</span><span·class="p"·data-group-id="2078379061-2">{</span><span·class="ss">debug_info</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">des3_cbc</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">t<[·...·truncated·by·diffoscope;·len:·136,·SHA:·4d902d43de41106fcfde33215ae755d20d5e5fed7f1182deb8aa59d426e8b9c7·...·]-2">}</span><span·class="p">,</span><span·class="w"> |
| 191 | ·</span><span·class="p"·data-group-id="0 | 191 | ·</span><span·class="p"·data-group-id="2078379061-3">{</span><span·class="ss">debug_info</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">des3_cbc</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2078379061-4">[</span><span·class="p"·dat[·...·truncated·by·diffoscope;·len:·250,·SHA:·e4ccdc25b42dd16ba0c9aae314d27e1558488bd0238c4fb56f710c56ae5dafe1·...·]-1">]</span><span·class="p">.</span></code></pre><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>Do·not·use·any·of·the·keys·in·these·examples.·Use·your·own·keys.</p></section> |
| 192 | ····</section> | 192 | ····</section> |
| 193 | </div> | 193 | </div> |
| 194 | ··<section·id="summary"·class="details-list"> | 194 | ··<section·id="summary"·class="details-list"> |
| 195 | ····<h1·class="section-heading"> | 195 | ····<h1·class="section-heading"> |
| 196 | ······<a·class="hover-link"·href="#summary"> | 196 | ······<a·class="hover-link"·href="#summary"> |
| Offset 1531, 19 lines modified | Offset 1531, 19 lines modified | ||
| 1531 | ························when·CryptoKeyFun·::·<a·href="#t:crypto_fun/0">crypto_fun</a>(),·Reason·::·badfun·|·exists·|·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>().</pre> | 1531 | ························when·CryptoKeyFun·::·<a·href="#t:crypto_fun/0">crypto_fun</a>(),·Reason·::·badfun·|·exists·|·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>().</pre> |
| 1532 | ······</div> | 1532 | ······</div> |
| 1533 | <p>Registers·an·unary·fun·that·is·called·if·<code·class="inline">beam_lib</code>·must·read·an·<code·class="inline">debug_info</code> | 1533 | <p>Registers·an·unary·fun·that·is·called·if·<code·class="inline">beam_lib</code>·must·read·an·<code·class="inline">debug_info</code> |
| 1534 | chunk·that·has·been·encrypted.·The·fun·is·held·in·a·process·that·is·started·by | 1534 | chunk·that·has·been·encrypted.·The·fun·is·held·in·a·process·that·is·started·by |
| 1535 | the·function.</p><p>If·a·fun·is·already·registered·when·attempting·to·register·a·fun, | 1535 | the·function.</p><p>If·a·fun·is·already·registered·when·attempting·to·register·a·fun, |
| 1536 | <code·class="inline">{error,·exists}</code>·is·returned.</p><p>The·fun·must·handle·the·following·arguments:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">CryptoKeyFun</span><span·class="p"·data-group-id="0 | 1536 | <code·class="inline">{error,·exists}</code>·is·returned.</p><p>The·fun·must·handle·the·following·arguments:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">CryptoKeyFun</span><span·class="p"·data-group-id="7045461271-1">(</span><span·class="ss">init</span><span·class="p"·data-group-id="7045461271-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">ok</span><span·class="w">·</span><span·class="p">|</span><sp[·...·truncated·by·diffoscope;·len:·509,·SHA:·872413c9e24be0d4c914b6779c74336982a8af39f89edb5f2ec22620b034fde6·...·]-3">}</span></code></pre><p>Called·when·the·fun·is·registered,·in·the·process·that·holds·the·fun.·Here·the |
| 1537 | crypto·key·fun·can·do·any·necessary·initializations.·If·<code·class="inline">{ok,·NewCryptoKeyFun}</code> | 1537 | crypto·key·fun·can·do·any·necessary·initializations.·If·<code·class="inline">{ok,·NewCryptoKeyFun}</code> |
| 1538 | is·returned,·<code·class="inline">NewCryptoKeyFun</code>·is·registered·instead·of·<code·class="inline">CryptoKeyFun</code>.·If | 1538 | is·returned,·<code·class="inline">NewCryptoKeyFun</code>·is·registered·instead·of·<code·class="inline">CryptoKeyFun</code>.·If |
| 1539 | <code·class="inline">{error,·Term}</code>·is·returned,·the·registration·is·aborted·and | 1539 | <code·class="inline">{error,·Term}</code>·is·returned,·the·registration·is·aborted·and |
| 1540 | <a·href="#crypto_key_fun/1"><code·class="inline">crypto_key_fun/1</code></a>·also·returns·<code·class="inline">{error,·Term}</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">CryptoKeyFun</span><span·class="p"·data-group-id="3 | 1540 | <a·href="#crypto_key_fun/1"><code·class="inline">crypto_key_fun/1</code></a>·also·returns·<code·class="inline">{error,·Term}</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">CryptoKeyFun</span><span·class="p"·data-group-id="2357267822-1">(</span><span·class="p"·data-group-id="2357267822-2">{</span><span·class="ss">debug_info</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Mode</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Module</[·...·truncated·by·diffoscope;·len:·178,·SHA:·6098abe16f1f4d5b528734989ce31866b848ad9b8cf7b635aedbb7e067c542e1·...·]-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">Key</span></code></pre><p>Called·when·the·key·is·needed·for·module·<code·class="inline">Module</code>·in·the·file·named·<code·class="inline">Filename</code>. |
| 1541 | <code·class="inline">Mode</code>·is·the·type·of·crypto·algorithm;·currently,·the·only·possible·value·is | 1541 | <code·class="inline">Mode</code>·is·the·type·of·crypto·algorithm;·currently,·the·only·possible·value·is |
| 1542 | <code·class="inline">des3_cbc</code>.·The·call·is·to·fail·(raise·an·exception)·if·no·key·is·available.</p><pre><code·class="text">CryptoKeyFun(clear)·->·term()</code></pre><p>Called·before·the·fun·is·unregistered.·Here·any·cleaning·up·can·be·done.·The | 1542 | <code·class="inline">des3_cbc</code>.·The·call·is·to·fail·(raise·an·exception)·if·no·key·is·available.</p><pre><code·class="text">CryptoKeyFun(clear)·->·term()</code></pre><p>Called·before·the·fun·is·unregistered.·Here·any·cleaning·up·can·be·done.·The |
| 1543 | return·value·is·not·important,·but·is·passed·back·to·the·caller·of | 1543 | return·value·is·not·important,·but·is·passed·back·to·the·caller·of |
| 1544 | <a·href="#clear_crypto_key_fun/0"><code·class="inline">clear_crypto_key_fun/0</code></a>·as·part·of·its·return·value.</p> | 1544 | <a·href="#clear_crypto_key_fun/0"><code·class="inline">clear_crypto_key_fun/0</code></a>·as·part·of·its·return·value.</p> |
| 1545 | ··</section> | 1545 | ··</section> |
| 1546 | </section> | 1546 | </section> |
| 1547 | <section·class="detail"·id="diff_dirs/2"> | 1547 | <section·class="detail"·id="diff_dirs/2"> |
| Offset 1880, 22 lines modified | Offset 1880, 22 lines modified | ||
| 1880 | ······</div> | 1880 | ······</div> |
| 1881 | <p>Returns·the·module·version·or·versions.·A·version·is·defined·by·module·attribute | 1881 | <p>Returns·the·module·version·or·versions.·A·version·is·defined·by·module·attribute |
| 1882 | <code·class="inline">-vsn(Vsn)</code>.</p><p>If·this·attribute·is·not·specified,·the·version·defaults·to·the | 1882 | <code·class="inline">-vsn(Vsn)</code>.</p><p>If·this·attribute·is·not·specified,·the·version·defaults·to·the |
| 1883 | checksum·of·the·module.·Notice·that·if·version·<code·class="inline">Vsn</code>·is·not·a·list,·it·is·made | 1883 | checksum·of·the·module.·Notice·that·if·version·<code·class="inline">Vsn</code>·is·not·a·list,·it·is·made |
| 1884 | into·one,·that·is·<code·class="inline">{ok,{Module,[Vsn]}}</code>·is·returned.·If·there·are·many·<code·class="inline">-vsn</code> | 1884 | into·one,·that·is·<code·class="inline">{ok,{Module,[Vsn]}}</code>·is·returned.·If·there·are·many·<code·class="inline">-vsn</code> |
| 1885 | module·attributes,·the·result·is·the·concatenated·list·of·versions.</p><p><em>Examples:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">beam_lib</span><span·class="p">:</span><span·class="nf">version</span><span·class="p"·data-group-id=" | 1885 | module·attributes,·the·result·is·the·concatenated·list·of·versions.</p><p><em>Examples:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">beam_lib</span><span·class="p">:</span><span·class="nf">version</span><span·class="p"·data-group-id="8164761898-1">(</span><span·class="ss">a</span><span·class="p"·data-group-id="8164761898-1">)</span><span·class="p">.</span><span·class="w">·</span><span·class="c1">%·-vsn(1).</span><span·class="w"> |
| 1886 | </span><span·class="p"·data-group-id=" | 1886 | </span><span·class="p"·data-group-id="8164761898-2">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="p"·data-group-id="8164761898-3">{</span><span·class="ss">a</span><span·class="p">,</span><span·class="p"·data-group-id="8164761898-4">[</span><span·class="mi">1</span><spa[·...·truncated·by·diffoscope;·len:·143,·SHA:·55a1cd35dd066cadda8f166188beda416f0f4444644b58ecbdc2165830dceb12·...·]-2">}</span><span·class="gp·unselectable"> |
| 1887 | 2>·</span><span·class="nc">beam_lib</span><span·class="p">:</span><span·class="nf">version</span><span·class="p"·data-group-id=" | 1887 | 2>·</span><span·class="nc">beam_lib</span><span·class="p">:</span><span·class="nf">version</span><span·class="p"·data-group-id="8164761898-5">(</span><span·class="ss">b</span><span·class="p"·data-group-id="8164761898-5">)</span><span·class="p">.</span><span·class="w">·</span><span·class="c1">%·-vsn([1]).</span><span·class="w"> |
| 1888 | </span><span·class="p"·data-group-id=" | 1888 | </span><span·class="p"·data-group-id="8164761898-6">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="p"·data-group-id="8164761898-7">{</span><span·class="ss">b</span><span·class="p">,</span><span·class="p"·data-group-id="8164761898-8">[</span><span·class="mi">1</span><spa[·...·truncated·by·diffoscope;·len:·143,·SHA:·3b27b8a24f44d79cd0c3f8f9608f1aa6cdb59541f7f409f76b25cb79fd127917·...·]-6">}</span><span·class="gp·unselectable"> |
| 1889 | 3>·</span><span·class="nc">beam_lib</span><span·class="p">:</span><span·class="nf">version</span><span·class="p"·data-group-id=" | 1889 | 3>·</span><span·class="nc">beam_lib</span><span·class="p">:</span><span·class="nf">version</span><span·class="p"·data-group-id="8164761898-9">(</span><span·class="ss">c</span><span·class="p"·data-group-id="8164761898-9">)</span><span·class="p">.</span><span·class="w">·</span><span·class="c1">%·-vsn([1]).·-vsn(2).</span><span·class="w"> |
| 1890 | </span><span·class="p"·data-group-id=" | 1890 | </span><span·class="p"·data-group-id="8164761898-10">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="p"·data-group-id="8164761898-11">{</span><span·class="ss">c</span><span·class="p">,</span><span·class="p"·data-group-id="8164761898-12">[</span><span·class="mi">1</span><[·...·truncated·by·diffoscope;·len:·197,·SHA:·04ba6c421ac77cc28f6da4de79d9847e0a52bf3a9bf4733f82e42b743fe73b0a·...·]-10">}</span><span·class="gp·unselectable"> |
| 1891 | 4>·</span><span·class="nc">beam_lib</span><span·class="p">:</span><span·class="nf">version</span><span·class="p"·data-group-id=" | 1891 | 4>·</span><span·class="nc">beam_lib</span><span·class="p">:</span><span·class="nf">version</span><span·class="p"·data-group-id="8164761898-13">(</span><span·class="ss">d</span><span·class="p"·data-group-id="8164761898-13">)</span><span·class="p">.</span><span·class="w">·</span><span·class="c1">%·no·-vsn·attribute</span><span·class="w"> |
| 1892 | </span><span·class="p"·data-group-id=" | 1892 | </span><span·class="p"·data-group-id="8164761898-14">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="p"·data-group-id="8164761898-15">{</span><span·class="ss">d</span><span·class="p">,</span><span·class="p"·data-group-id="8164761898-16">[</span><span·class="mi">275613208[·...·truncated·by·diffoscope;·len:·186,·SHA:·6f6b335380c04d6993aaaf609c1f31d68f1ea3f32417b40f6f8fc5a7072363dc·...·]-14">}</span></code></pre> |
| 1893 | ··</section> | 1893 | ··</section> |
| 1894 | </section> | 1894 | </section> |
| 1895 | ····</div> | 1895 | ····</div> |
| 1896 | ··</section> | 1896 | ··</section> |
| 1897 | ····<footer·class="footer"> | 1897 | ····<footer·class="footer"> |
| Offset 1916, 15 lines modified | Offset 1916, 15 lines modified | ||
| 1916 | ······<p·class="built-using"> | 1916 | ······<p·class="built-using"> |
| 1917 | ········Built·using | 1917 | ········Built·using |
| 1918 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1918 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1919 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1919 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1920 | ······</p> | 1920 | ······</p> |
| 1921 | <p>Copyright·©·1996-202 | 1921 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1922 | ····</footer> | 1922 | ····</footer> |
| 1923 | ··</div> | 1923 | ··</div> |
| 1924 | </main> | 1924 | </main> |
| 1925 | </div> | 1925 | </div> |
| 1926 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1926 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1927 | ··<script> | 1927 | ··<script> |
| 1928 | ··let·initialized·=·false; | 1928 | ··let·initialized·=·false; |
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| 620 | integer.</p><p>If·<code·class="inline">Pos</code>·>=·<a·href="../../../../erts-16.0/doc/html/erlang.html#byte_size/1"><code·class="inline">byte_size(Subject)</code></a>,·a·<code·class="inline">badarg</code>·exception | 620 | integer.</p><p>If·<code·class="inline">Pos</code>·>=·<a·href="../../../../erts-16.0/doc/html/erlang.html#byte_size/1"><code·class="inline">byte_size(Subject)</code></a>,·a·<code·class="inline">badarg</code>·exception |
| 621 | is·raised.</p><h2·id="at/2-examples"·class="section-heading"> | 621 | is·raised.</p><h2·id="at/2-examples"·class="section-heading"> |
| 622 | ··<a·href="#at/2-examples"·class="hover-link"> | 622 | ··<a·href="#at/2-examples"·class="hover-link"> |
| 623 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 623 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 624 | ··</a> | 624 | ··</a> |
| 625 | ··<span·class="text">Examples</span> | 625 | ··<span·class="text">Examples</span> |
| 626 | </h2> | 626 | </h2> |
| 627 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">binary</span><span·class="p">:</span><span·class="nf">at</span><span·class="p"·data-group-id=" | 627 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">binary</span><span·class="p">:</span><span·class="nf">at</span><span·class="p"·data-group-id="4458449004-1">(</span><span·class="p"·data-group-id="4458449004-2"><<</span><span·class="mi">5</span><span·class="p">,</span><span·class="mi">19</span><span·class="p">,</span><span·class="mi">72</span><span·class="p">,</span><span·class="mi">33</span[·...·truncated·by·diffoscope;·len:·175,·SHA:·1ad1515dc4e20765b055c08730a8e1564d8ae768362bfc34a34e7c105b0c5131·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 628 | </span><span·class="mi">5</span><span·class="gp·unselectable"> | 628 | </span><span·class="mi">5</span><span·class="gp·unselectable"> |
| 629 | 2>·</span><span·class="nc">binary</span><span·class="p">:</span><span·class="nf">at</span><span·class="p"·data-group-id=" | 629 | 2>·</span><span·class="nc">binary</span><span·class="p">:</span><span·class="nf">at</span><span·class="p"·data-group-id="4458449004-3">(</span><span·class="p"·data-group-id="4458449004-4"><<</span><span·class="mi">5</span><span·class="p">,</span><span·class="mi">19</span><span·class="p">,</span><span·class="mi">72</span><span·class="p">,</span><span·class="mi">33</span[·...·truncated·by·diffoscope;·len:·175,·SHA:·b76e56f6a52a6d5d546d17ecec5922b603e7f7ac4aa4ba47d316c9a1d70d3b1e·...·]-3">)</span><span·class="p">.</span><span·class="w"> |
| 630 | </span><span·class="mi">19</span><span·class="gp·unselectable"> | 630 | </span><span·class="mi">19</span><span·class="gp·unselectable"> |
| 631 | 3>·</span><span·class="nc">binary</span><span·class="p">:</span><span·class="nf">at</span><span·class="p"·data-group-id=" | 631 | 3>·</span><span·class="nc">binary</span><span·class="p">:</span><span·class="nf">at</span><span·class="p"·data-group-id="4458449004-5">(</span><span·class="p"·data-group-id="4458449004-6"><<</span><span·class="mi">5</span><span·class="p">,</span><span·class="mi">19</span><span·class="p">,</span><span·class="mi">72</span><span·class="p">,</span><span·class="mi">33</span[·...·truncated·by·diffoscope;·len:·175,·SHA:·31e6282e916a770589019889381057522daeb39bd36b56893f83b4f0e4a13573·...·]-5">)</span><span·class="p">.</span><span·class="w"> |
| 632 | </span><span·class="gt">**·exception·error:·bad·argument | 632 | </span><span·class="gt">**·exception·error:·bad·argument |
| 633 | ·····in·function··binary:at/2 | 633 | ·····in·function··binary:at/2 |
| 634 | ········called·as·binary:at(<<5,19,72,33>>,4)</span></code></pre> | 634 | ········called·as·binary:at(<<5,19,72,33>>,4)</span></code></pre> |
| 635 | ··</section> | 635 | ··</section> |
| 636 | </section> | 636 | </section> |
| 637 | <section·class="detail"·id="bin_to_list/1"> | 637 | <section·class="detail"·id="bin_to_list/1"> |
| Offset 662, 16 lines modified | Offset 662, 16 lines modified | ||
| 662 | <p>Converts·<code·class="inline">Subject</code>·to·a·list·of·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:byte/0"><code·class="inline">byte()</code></a>s,·each | 662 | <p>Converts·<code·class="inline">Subject</code>·to·a·list·of·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:byte/0"><code·class="inline">byte()</code></a>s,·each |
| 663 | representing·the·value·of·one·byte.</p><h2·id="bin_to_list/1-examples"·class="section-heading"> | 663 | representing·the·value·of·one·byte.</p><h2·id="bin_to_list/1-examples"·class="section-heading"> |
| 664 | ··<a·href="#bin_to_list/1-examples"·class="hover-link"> | 664 | ··<a·href="#bin_to_list/1-examples"·class="hover-link"> |
| 665 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 665 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 666 | ··</a> | 666 | ··</a> |
| 667 | ··<span·class="text">Examples</span> | 667 | ··<span·class="text">Examples</span> |
| 668 | </h2> | 668 | </h2> |
| 669 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">binary</span><span·class="p">:</span><span·class="nf">bin_to_list</span><span·class="p"·data-group-id=" | 669 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">binary</span><span·class="p">:</span><span·class="nf">bin_to_list</span><span·class="p"·data-group-id="6240238158-1">(</span><span·class="p"·data-group-id="6240238158-2"><<</span><span·class="s">"erlang"</span><span·class="p">,</span><span·class="mi">0</span><span·class="p"·data-group-id="6240238158-2">>></span><span·class="p"·data-gro[·...·truncated·by·diffoscope;·len:·17,·SHA:·9c62bdf4f2482cd3f47c9826e3908c9e97cc15ee94f3af7795093a92ea2a0897·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 670 | </span><span·class="p"·data-group-id=" | 670 | </span><span·class="p"·data-group-id="6240238158-3">[</span><span·class="mi">101</span><span·class="p">,</span><span·class="mi">114</span><span·class="p">,</span><span·class="mi">108</span><span·class="p">,</span><span·class="mi">97</span><span·class="p">,</span><span·class="mi">110</span><spa[·...·truncated·by·diffoscope;·len:·137,·SHA:·f395325dca688092984be3013bbb4e7072d438932360a17cff293993e72f3725·...·]-3">]</span></code></pre> |
| 671 | ··</section> | 671 | ··</section> |
| 672 | </section> | 672 | </section> |
| 673 | <section·class="detail"·id="bin_to_list/2"> | 673 | <section·class="detail"·id="bin_to_list/2"> |
| 674 | ··<div·class="detail-header"> | 674 | ··<div·class="detail-header"> |
| 675 | ····<a·href="#bin_to_list/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 675 | ····<a·href="#bin_to_list/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 676 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 676 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 727, 18 lines modified | Offset 727, 18 lines modified | ||
| 727 | <p>Converts·part·of·<code·class="inline">Subject</code>·to·a·list·of·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:byte/0"><code·class="inline">byte/0</code></a>s,·each·representing | 727 | <p>Converts·part·of·<code·class="inline">Subject</code>·to·a·list·of·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:byte/0"><code·class="inline">byte/0</code></a>s,·each·representing |
| 728 | the·value·of·one·byte.</p><p><code·class="inline">Pos</code>·and·<code·class="inline">Len</code>·denote·which·part·of·the·<code·class="inline">Subject</code>·binary·to·convert.</p><h2·id="bin_to_list/3-examples"·class="section-heading"> | 728 | the·value·of·one·byte.</p><p><code·class="inline">Pos</code>·and·<code·class="inline">Len</code>·denote·which·part·of·the·<code·class="inline">Subject</code>·binary·to·convert.</p><h2·id="bin_to_list/3-examples"·class="section-heading"> |
| 729 | ··<a·href="#bin_to_list/3-examples"·class="hover-link"> | 729 | ··<a·href="#bin_to_list/3-examples"·class="hover-link"> |
| 730 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 730 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 731 | ··</a> | 731 | ··</a> |
| 732 | ··<span·class="text">Examples</span> | 732 | ··<span·class="text">Examples</span> |
| 733 | </h2> | 733 | </h2> |
| 734 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">binary</span><span·class="p">:</span><span·class="nf">bin_to_list</span><span·class="p"·data-group-id=" | 734 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">binary</span><span·class="p">:</span><span·class="nf">bin_to_list</span><span·class="p"·data-group-id="3021688425-1">(</span><span·class="p"·data-group-id="3021688425-2"><<</span><span·class="s">"erlang"</span><span·class="p"·data-group-id="3021688425-2">>></span><span·class="p">,</span><span·class="w">·</span><span·class="mi">1</span>[·...·truncated·by·diffoscope;·len:·114,·SHA:·99936bdadb4c4a12fe7ccde30637d615a9099a4f3d2a152b827c96f5c90a2215·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 735 | </span><span·class="s">"rla"</span><span·class="w"> | 735 | </span><span·class="s">"rla"</span><span·class="w"> |
| 736 | </span><span·class="c1">%%·or·[114,108,97]·in·list·notation.</span><span·class="gp·unselectable"> | 736 | </span><span·class="c1">%%·or·[114,108,97]·in·list·notation.</span><span·class="gp·unselectable"> |
| 737 | 2>·</span><span·class="nc">binary</span><span·class="p">:</span><span·class="nf">bin_to_list</span><span·class="p"·data-group-id=" | 737 | 2>·</span><span·class="nc">binary</span><span·class="p">:</span><span·class="nf">bin_to_list</span><span·class="p"·data-group-id="3021688425-3">(</span><span·class="p"·data-group-id="3021688425-4"><<</span><span·class="s">"erlang"</span><span·class="p"·data-group-id="3021688425-4">>></span><span·class="p">,</span><span·class="w">·</span><span·class="mi">5</span>[·...·truncated·by·diffoscope;·len:·114,·SHA:·99936bdadb4c4a12fe7ccde30637d615a9099a4f3d2a152b827c96f5c90a2215·...·]-3">)</span><span·class="p">.</span><span·class="w"> |
| 738 | </span><span·class="gt">**·exception·error:·bad·argument | 738 | </span><span·class="gt">**·exception·error:·bad·argument |
| 739 | ·····in·function··binary:bin_to_list/3 | 739 | ·····in·function··binary:bin_to_list/3 |
| 740 | ········called·as·binary:bin_to_list(<<"erlang">>,5,3) | 740 | ········called·as·binary:bin_to_list(<<"erlang">>,5,3) |
| 741 | ········***·argument·3:·out·of·range</span></code></pre><p>If·<code·class="inline">Pos</code>·and·<code·class="inline">Len</code>·reference·outside·the·binary·in·any·way,·a·<code·class="inline">badarg</code> | 741 | ········***·argument·3:·out·of·range</span></code></pre><p>If·<code·class="inline">Pos</code>·and·<code·class="inline">Len</code>·reference·outside·the·binary·in·any·way,·a·<code·class="inline">badarg</code> |
| 742 | exception·is·raised.</p> | 742 | exception·is·raised.</p> |
| 743 | ··</section> | 743 | ··</section> |
| 744 | </section> | 744 | </section> |
| Offset 781, 17 lines modified | Offset 781, 17 lines modified | ||
| 781 | non-empty.</p><p>If·<code·class="inline">Pattern</code>·is·not·a·binary·or·a·flat·proper·non-empty·list·of·binaries·with | 781 | non-empty.</p><p>If·<code·class="inline">Pattern</code>·is·not·a·binary·or·a·flat·proper·non-empty·list·of·binaries·with |
| 782 | length·greater·than·0,·a·<code·class="inline">badarg</code>·exception·is·raised.</p><h2·id="compile_pattern/1-examples"·class="section-heading"> | 782 | length·greater·than·0,·a·<code·class="inline">badarg</code>·exception·is·raised.</p><h2·id="compile_pattern/1-examples"·class="section-heading"> |
| 783 | ··<a·href="#compile_pattern/1-examples"·class="hover-link"> | 783 | ··<a·href="#compile_pattern/1-examples"·class="hover-link"> |
| 784 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 784 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 785 | ··</a> | 785 | ··</a> |
| 786 | ··<span·class="text">Examples</span> | 786 | ··<span·class="text">Examples</span> |
| 787 | </h2> | 787 | </h2> |
| 788 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">Pat</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">binary</span><span·class="p">:</span><span·class="nf">compile_pattern</span><span·class="p"·data-group-id=" | 788 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">Pat</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">binary</span><span·class="p">:</span><span·class="nf">compile_pattern</span><span·class="p"·data-group-id="8792547184-1">(</span><span·class="s">~"rain"</span><span·class="p"·data-group-id="8792547184-1">)</span><span·class="p">.</span><span·class="gp·unselectable"> |
| 789 | 2>·</span><span·class="nc">binary</span><span·class="p">:</span><span·class="nf">match</span><span·class="p"·data-group-id=" | 789 | 2>·</span><span·class="nc">binary</span><span·class="p">:</span><span·class="nf">match</span><span·class="p"·data-group-id="8792547184-2">(</span><span·class="s">~"the·rain·in·spain"</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Pat</span><span·class="p"·data-group-id="8792547184-2">)</span><span·class="p">.</span><span·class="w"> |
| 790 | </span><span·class="p"·data-group-id=" | 790 | </span><span·class="p"·data-group-id="8792547184-3">{</span><span·class="mi">4</span><span·class="p">,</span><span·class="mi">4</span><span·class="p"·data-group-id="8792547184-3">}</span></code></pre> |
| 791 | ··</section> | 791 | ··</section> |
| 792 | </section> | 792 | </section> |
| 793 | <section·class="detail"·id="copy/1"> | 793 | <section·class="detail"·id="copy/1"> |
| 794 | ··<div·class="detail-header"> | 794 | ··<div·class="detail-header"> |
| 795 | ····<a·href="#copy/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 795 | ····<a·href="#copy/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 796 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 796 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 824, 21 lines modified | Offset 824, 21 lines modified | ||
| 824 | binaries·are·no·longer·used·in·any·process·—·can·deliberate·copying·be | 824 | binaries·are·no·longer·used·in·any·process·—·can·deliberate·copying·be |
| 825 | beneficial.</p></section><h2·id="copy/1-examples"·class="section-heading"> | 825 | beneficial.</p></section><h2·id="copy/1-examples"·class="section-heading"> |
| 826 | ··<a·href="#copy/1-examples"·class="hover-link"> | 826 | ··<a·href="#copy/1-examples"·class="hover-link"> |
| 827 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 827 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 828 | ··</a> | 828 | ··</a> |
| 829 | ··<span·class="text">Examples</span> | 829 | ··<span·class="text">Examples</span> |
| 830 | </h2> | 830 | </h2> |
| 831 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">HugeBinary</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 831 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">HugeBinary</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="8297817670-1"><<</span><span·class="mi">0</span><span·class="p">:</span><span·class="mi">100</span><span·class="p">_</span><span·class="mi">000</span><span·class="o">/</span><span·class="nc">unit</span><span·class="p">:</span><span·class="mi">8</span[·...·truncated·by·diffoscope;·len:·42,·SHA:·eeb2f61071831eaf2657a651d634b41ceedc1875c7d36c9028c307ac08fe7f76·...·]-1">>></span><span·class="p">.</span><span·class="gp·unselectable"> |
| 832 | 2>·</span><span·class="nf">byte_size</span><span·class="p"·data-group-id=" | 832 | 2>·</span><span·class="nf">byte_size</span><span·class="p"·data-group-id="8297817670-2">(</span><span·class="n">HugeBinary</span><span·class="p"·data-group-id="8297817670-2">)</span><span·class="p">.</span><span·class="w"> |
| 833 | </span><span·class="mi">100000</span><span·class="gp·unselectable"> | 833 | </span><span·class="mi">100000</span><span·class="gp·unselectable"> |
| 834 | 3>·</span><span·class="n">Part</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">binary</span><span·class="p">:</span><span·class="nf">part</span><span·class="p"·data-group-id=" | 834 | 3>·</span><span·class="n">Part</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">binary</span><span·class="p">:</span><span·class="nf">part</span><span·class="p"·data-group-id="8297817670-3">(</span><span·class="n">HugeBinary</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">0</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">5</span><span·class="p"·data-group-id="8297817670-3">)</span><span·class="p">.</span><span·class="w"> |
| 835 | </span><span·class="p"·data-group-id=" | 835 | </span><span·class="p"·data-group-id="8297817670-4"><<</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·[·...·truncated·by·diffoscope;·len:·35,·SHA:·3a7b1ea603d2873d5e15999333e792131da9c8291f8a4a29d479b044143c5e67·...·]-4">>></span><span·class="gp·unselectable"> |
| 836 | 4>·</span><span·class="n">Copy</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">binary</span><span·class="p">:</span><span·class="nf">copy</span><span·class="p"·data-group-id=" | 836 | 4>·</span><span·class="n">Copy</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">binary</span><span·class="p">:</span><span·class="nf">copy</span><span·class="p"·data-group-id="8297817670-5">(</span><span·class="n">Part</span><span·class="p"·data-group-id="8297817670-5">)</span><span·class="p">.</span><span·class="w"> |
| 837 | </span><span·class="p"·data-group-id=" | 837 | </span><span·class="p"·data-group-id="8297817670-6"><<</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·[·...·truncated·by·diffoscope;·len:·35,·SHA:·3a7b1ea603d2873d5e15999333e792131da9c8291f8a4a29d479b044143c5e67·...·]-6">>></span></code></pre> |
| 838 | ··</section> | 838 | ··</section> |
| 839 | </section> | 839 | </section> |
| 840 | <section·class="detail"·id="copy/2"> | 840 | <section·class="detail"·id="copy/2"> |
| 841 | ··<div·class="detail-header"> | 841 | ··<div·class="detail-header"> |
| 842 | ····<a·href="#copy/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 842 | ····<a·href="#copy/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 843 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 843 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
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| 864 | <p>Creates·a·binary·with·the·content·of·<code·class="inline">Subject</code>·duplicated·<code·class="inline">N</code>·times.</p><p>This·function·always·creates·a·new·binary,·even·when·<code·class="inline">N</code>·is·<code·class="inline">1</code>.</p><h2·id="copy/2-examples"·class="section-heading"> | 864 | <p>Creates·a·binary·with·the·content·of·<code·class="inline">Subject</code>·duplicated·<code·class="inline">N</code>·times.</p><p>This·function·always·creates·a·new·binary,·even·when·<code·class="inline">N</code>·is·<code·class="inline">1</code>.</p><h2·id="copy/2-examples"·class="section-heading"> |
| 865 | ··<a·href="#copy/2-examples"·class="hover-link"> | 865 | ··<a·href="#copy/2-examples"·class="hover-link"> |
| 866 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 866 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 867 | ··</a> | 867 | ··</a> |
| 868 | ··<span·class="text">Examples</span> | 868 | ··<span·class="text">Examples</span> |
| 869 | </h2> | 869 | </h2> |
| 870 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">binary</span><span·class="p">:</span><span·class="nf">copy</span><span·class="p"·data-group-id=" | 870 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">binary</span><span·class="p">:</span><span·class="nf">copy</span><span·class="p"·data-group-id="6342412899-1">(</span><span·class="s">~"-"</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">10</span><span·class="p"·data-group-id="6342412899-1">)</span><span·class="p">.</span><span·class="w"> |
| 871 | </span><span·class="p"·data-group-id=" | 871 | </span><span·class="p"·data-group-id="6342412899-2"><<</span><span·class="s">"----------"</span><span·class="p"·data-group-id="6342412899-2">>></span></code></pre> |
| 872 | ··</section> | 872 | ··</section> |
| 873 | </section> | 873 | </section> |
| 874 | <section·class="detail"·id="decode_hex/1"> | 874 | <section·class="detail"·id="decode_hex/1"> |
| 875 | ··<div·class="detail-header"> | 875 | ··<div·class="detail-header"> |
| 876 | ····<a·href="#decode_hex/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 876 | ····<a·href="#decode_hex/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 877 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 877 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
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| 900 | <p>Decodes·a·hex-encoded·binary·into·a·binary.</p><p>An·exception·is·raised·if·the·size·of·the·binary·is·not·evenly·divisble·by·two, | 900 | <p>Decodes·a·hex-encoded·binary·into·a·binary.</p><p>An·exception·is·raised·if·the·size·of·the·binary·is·not·evenly·divisble·by·two, |
| 901 | or·if·the·binary·contains·any·characters·that·do·not·represent·hex·digits.</p><h2·id="decode_hex/1-examples"·class="section-heading"> | 901 | or·if·the·binary·contains·any·characters·that·do·not·represent·hex·digits.</p><h2·id="decode_hex/1-examples"·class="section-heading"> |
| 902 | ··<a·href="#decode_hex/1-examples"·class="hover-link"> | 902 | ··<a·href="#decode_hex/1-examples"·class="hover-link"> |
| 903 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 903 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 904 | ··</a> | 904 | ··</a> |
| 905 | ··<span·class="text">Examples</span> | 905 | ··<span·class="text">Examples</span> |
| 906 | </h2> | 906 | </h2> |
| 907 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">binary</span><span·class="p">:</span><span·class="nf">decode_hex</span><span·class="p"·data-group-id=" | 907 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">binary</span><span·class="p">:</span><span·class="nf">decode_hex</span><span·class="p"·data-group-id="8403181432-1">(</span><span·class="p"·data-group-id="8403181432-2"><<</span><span·class="s">"666f6f"</span><span·class="p"·data-group-id="8403181432-2">>></span><span·class="p"·data-group-id="8403181432-1">)</span><span·class="p">.</span><span·class="w"> |
| 908 | </span><span·class="p"·data-group-id=" | 908 | </span><span·class="p"·data-group-id="8403181432-3"><<</span><span·class="s">"foo"</span><span·class="p"·data-group-id="8403181432-3">>></span><span·class="gp·unselectable"> |
| 909 | 2>·</span><span·class="nc">binary</span><span·class="p">:</span><span·class="nf">decode_hex</span><span·class="p"·data-group-id=" | 909 | 2>·</span><span·class="nc">binary</span><span·class="p">:</span><span·class="nf">decode_hex</span><span·class="p"·data-group-id="8403181432-4">(</span><span·class="p"·data-group-id="8403181432-5"><<</span><span·class="s">"A"</span><span·class="p"·data-group-id="8403181432-5">>></span><span·class="p"·data-group-id="8403181432-4">)</span><span·class="p">.</span><span·class="w"> |
| 910 | </span><span·class="gt">**·exception·error:·bad·argument | 910 | </span><span·class="gt">**·exception·error:·bad·argument |
| 911 | ·····in·function··binary:decode_hex/1 | 911 | ·····in·function··binary:decode_hex/1 |
| 912 | ········called·as·binary:decode_hex(<<"A">>) | 912 | ········called·as·binary:decode_hex(<<"A">>) |
| 913 | ········***·argument·1:·must·contain·an·even·number·of·bytes</span></code></pre> | 913 | ········***·argument·1:·must·contain·an·even·number·of·bytes</span></code></pre> |
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| 1682 | ················Options·::·[Option]·|·Option, | 1682 | ················Options·::·[Option]·|·Option, |
| 1683 | ················Option·::·<a·href="../../../../lib/compiler-9.0/doc/html/compile.html#t:option/0">compile:option</a>(), | 1683 | ················Option·::·<a·href="../../../../lib/compiler-9.0/doc/html/compile.html#t:option/0">compile:option</a>(), |
| 1684 | ················Module·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:module/0">module</a>().</pre> | 1684 | ················Module·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:module/0">module</a>().</pre> |
| 1685 | ······</div> | 1685 | ······</div> |
| 1686 | <p>Compiles·and·then·loads·the·code·for·a·file·on·all·nodes.·<code·class="inline">Options</code>·defaults·to | 1686 | <p>Compiles·and·then·loads·the·code·for·a·file·on·all·nodes.·<code·class="inline">Options</code>·defaults·to |
| 1687 | <code·class="inline">[]</code>.·Compilation·is·equivalent·to:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">compile</span><span·class="p">:</span><span·class="nf">file</span><span·class="p"·data-group-id=" | 1687 | <code·class="inline">[]</code>.·Compilation·is·equivalent·to:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">compile</span><span·class="p">:</span><span·class="nf">file</span><span·class="p"·data-group-id="9579729296-1">(</span><span·class="n">File</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Options</span><span·class="w">·</span><span·class="o">++</span><span·class="w">·</span><span·class="p"·data-group-id="9579729296-2">[</span><sp[·...·truncated·by·diffoscope;·len:·215,·SHA:·cc6f1c168a8d5d834f6e06ecc35b04e12ed811dedc599d1f93900ef2429003aa·...·]-1">)</span></code></pre> |
| 1688 | ··</section> | 1688 | ··</section> |
| 1689 | </section> | 1689 | </section> |
| 1690 | <section·class="detail"·id="ni/0"> | 1690 | <section·class="detail"·id="ni/0"> |
| 1691 | ··<div·class="detail-header"> | 1691 | ··<div·class="detail-header"> |
| 1692 | ····<a·href="#ni/0"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 1692 | ····<a·href="#ni/0"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 1693 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 1693 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 2007, 15 lines modified | Offset 2007, 15 lines modified | ||
| 2007 | ······<p·class="built-using"> | 2007 | ······<p·class="built-using"> |
| 2008 | ········Built·using | 2008 | ········Built·using |
| 2009 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 2009 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 2010 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 2010 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 2011 | ······</p> | 2011 | ······</p> |
| 2012 | <p>Copyright·©·1996-202 | 2012 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 2013 | ····</footer> | 2013 | ····</footer> |
| 2014 | ··</div> | 2014 | ··</div> |
| 2015 | </main> | 2015 | </main> |
| 2016 | </div> | 2016 | </div> |
| 2017 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 2017 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 2018 | ··<script> | 2018 | ··<script> |
| 2019 | ··let·initialized·=·false; | 2019 | ··let·initialized·=·false; |
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| 1866 | ····································Option·::·{unit,·<a·href="#t:rfc3339_time_unit/0">rfc3339_time_unit</a>()}.</pre> | 1866 | ····································Option·::·{unit,·<a·href="#t:rfc3339_time_unit/0">rfc3339_time_unit</a>()}.</pre> |
| 1867 | ······</div> | 1867 | ······</div> |
| 1868 | <p>Converts·an·RFC·3339·timestamp·into·system·time.·The·data·format·of·RFC·3339 | 1868 | <p>Converts·an·RFC·3339·timestamp·into·system·time.·The·data·format·of·RFC·3339 |
| 1869 | timestamps·is·described·by·<a·href="https://www.ietf.org/rfc/rfc3339.txt">RFC·3339</a>. | 1869 | timestamps·is·described·by·<a·href="https://www.ietf.org/rfc/rfc3339.txt">RFC·3339</a>. |
| 1870 | Starting·from·OTP·25.1,·the·minutes·part·of·the·time·zone·is·optional.</p><p>Valid·option:</p><ul><li><strong><code·class="inline">{unit,·Unit}</code></strong>·-·The·time·unit·of·the·return·value.·The·default·is | 1870 | Starting·from·OTP·25.1,·the·minutes·part·of·the·time·zone·is·optional.</p><p>Valid·option:</p><ul><li><strong><code·class="inline">{unit,·Unit}</code></strong>·-·The·time·unit·of·the·return·value.·The·default·is |
| 1871 | <code·class="inline">second</code>.</li></ul><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">calendar</span><span·class="p">:</span><span·class="nf">rfc3339_to_system_time</span><span·class="p"·data-group-id=" | 1871 | <code·class="inline">second</code>.</li></ul><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">calendar</span><span·class="p">:</span><span·class="nf">rfc3339_to_system_time</span><span·class="p"·data-group-id="7430364440-1">(</span><span·class="s">"2018-02-01T16:17:58+01:00"</span><span·class="p"·data-group-id="7430364440-1">)</span><span·class="p">.</span><span·class="w"> |
| 1872 | </span><span·class="mi">1517498278</span><span·class="gp·unselectable"> | 1872 | </span><span·class="mi">1517498278</span><span·class="gp·unselectable"> |
| 1873 | 2>·</span><span·class="nc">calendar</span><span·class="p">:</span><span·class="nf">rfc3339_to_system_time</span><span·class="p"·data-group-id=" | 1873 | 2>·</span><span·class="nc">calendar</span><span·class="p">:</span><span·class="nf">rfc3339_to_system_time</span><span·class="p"·data-group-id="7430364440-2">(</span><span·class="s">"2018-02-01·15:18:02.088Z"</span><span·class="p">,</span><span·class="w"> |
| 1874 | ···</span><span·class="p"·data-group-id=" | 1874 | ···</span><span·class="p"·data-group-id="7430364440-3">[</span><span·class="p"·data-group-id="7430364440-4">{</span><span·class="ss">unit</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">nanosecond</span><span·class="p"·data-group-id="7430364440-4">}</span><span·class="p"·da[·...·truncated·by·diffoscope;·len:·76,·SHA:·2c070ba43244261adf346c169c5cfe573cac2579681a5ec466a5127d2002060f·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 1875 | </span><span·class="mi">1517498282088000000</span><span·class="gp·unselectable"> | 1875 | </span><span·class="mi">1517498282088000000</span><span·class="gp·unselectable"> |
| 1876 | 3>·</span><span·class="nc">calendar</span><span·class="p">:</span><span·class="nf">rfc3339_to_system_time</span><span·class="p"·data-group-id=" | 1876 | 3>·</span><span·class="nc">calendar</span><span·class="p">:</span><span·class="nf">rfc3339_to_system_time</span><span·class="p"·data-group-id="7430364440-5">(</span><span·class="p"·data-group-id="7430364440-6"><<</span><span·class="s">"2018-02-01·15:18:02.088Z"</span><span·class="p"·data-group-id="7430364440-6">>></span><span·class="p">,</span><span·class="w"> |
| 1877 | ···</span><span·class="p"·data-group-id=" | 1877 | ···</span><span·class="p"·data-group-id="7430364440-7">[</span><span·class="p"·data-group-id="7430364440-8">{</span><span·class="ss">unit</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">nanosecond</span><span·class="p"·data-group-id="7430364440-8">}</span><span·class="p"·da[·...·truncated·by·diffoscope;·len:·76,·SHA:·847b66c84013e65dad16f6a46a17e080b55cf2d27ba67f5a6cc82f46963a38f3·...·]-5">)</span><span·class="p">.</span><span·class="w"> |
| 1878 | </span><span·class="mi">1517498282088000000</span></code></pre> | 1878 | </span><span·class="mi">1517498282088000000</span></code></pre> |
| 1879 | ··</section> | 1879 | ··</section> |
| 1880 | </section> | 1880 | </section> |
| 1881 | <section·class="detail"·id="seconds_to_daystime/1"> | 1881 | <section·class="detail"·id="seconds_to_daystime/1"> |
| 1882 | ··<div·class="detail-header"> | 1882 | ··<div·class="detail-header"> |
| 1883 | ····<a·href="#seconds_to_daystime/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 1883 | ····<a·href="#seconds_to_daystime/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| Offset 2034, 28 lines modified | Offset 2034, 28 lines modified | ||
| 2034 | of·the·integer·is·the·same·as·the·one·of·<code·class="inline">Time</code>.</p></li><li><p><strong><code·class="inline">{time_designator,·Character}</code></strong>·-·The·character·used·as·time·designator, | 2034 | of·the·integer·is·the·same·as·the·one·of·<code·class="inline">Time</code>.</p></li><li><p><strong><code·class="inline">{time_designator,·Character}</code></strong>·-·The·character·used·as·time·designator, |
| 2035 | that·is,·the·date·and·time·separator.·The·default·is·<code·class="inline">$T</code>.</p></li><li><p><strong><code·class="inline">{unit,·Unit}</code></strong>·-·The·time·unit·of·<code·class="inline">Time</code>.·The·default·is·<code·class="inline">second</code>.·If·some | 2035 | that·is,·the·date·and·time·separator.·The·default·is·<code·class="inline">$T</code>.</p></li><li><p><strong><code·class="inline">{unit,·Unit}</code></strong>·-·The·time·unit·of·<code·class="inline">Time</code>.·The·default·is·<code·class="inline">second</code>.·If·some |
| 2036 | other·unit·is·given·(<code·class="inline">millisecond</code>,·<code·class="inline">microsecond</code>,·<code·class="inline">nanosecond</code>,·or·<code·class="inline">native</code>), | 2036 | other·unit·is·given·(<code·class="inline">millisecond</code>,·<code·class="inline">microsecond</code>,·<code·class="inline">nanosecond</code>,·or·<code·class="inline">native</code>), |
| 2037 | the·formatted·string·includes·a·fraction·of·a·second.·The·number·of·fractional | 2037 | the·formatted·string·includes·a·fraction·of·a·second.·The·number·of·fractional |
| 2038 | second·digits·is·three,·six,·or·nine·depending·on·what·time·unit·is·chosen. | 2038 | second·digits·is·three,·six,·or·nine·depending·on·what·time·unit·is·chosen. |
| 2039 | For·<code·class="inline">native</code>·three·fractional·digits·are·included.·Notice·that·trailing·zeros | 2039 | For·<code·class="inline">native</code>·three·fractional·digits·are·included.·Notice·that·trailing·zeros |
| 2040 | are·not·removed·from·the·fraction.</p></li><li><p><strong><code·class="inline">{return,·Return}</code></strong>·-·The·desired·encoding·type·for·the·output, | 2040 | are·not·removed·from·the·fraction.</p></li><li><p><strong><code·class="inline">{return,·Return}</code></strong>·-·The·desired·encoding·type·for·the·output, |
| 2041 | whether·a·string·or·a·binary·is·desired.·Defaults·to·string.</p></li></ul><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">calendar</span><span·class="p">:</span><span·class="nf">system_time_to_rfc3339</span><span·class="p"·data-group-id="8 | 2041 | whether·a·string·or·a·binary·is·desired.·Defaults·to·string.</p></li></ul><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">calendar</span><span·class="p">:</span><span·class="nf">system_time_to_rfc3339</span><span·class="p"·data-group-id="8251740910-1">(</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">system_time</span><span·class="p"·data-group-id="8251740910-2">(</span><span·class="ss">second</span><span·class="p"·data-group-id="8251740910-2">)</span><span·clas[·...·truncated·by·diffoscope;·len:·31,·SHA:·474ff6d0095201f5bd246d7bca11e03ef53437a33fae08ff8a8ad6827f12973a·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 2042 | </span><span·class="s">"2018-04-23T14:56:28+02:00"</span><span·class="gp·unselectable"> | 2042 | </span><span·class="s">"2018-04-23T14:56:28+02:00"</span><span·class="gp·unselectable"> |
| 2043 | 2>·</span><span·class="nc">calendar</span><span·class="p">:</span><span·class="nf">system_time_to_rfc3339</span><span·class="p"·data-group-id="8 | 2043 | 2>·</span><span·class="nc">calendar</span><span·class="p">:</span><span·class="nf">system_time_to_rfc3339</span><span·class="p"·data-group-id="8251740910-3">(</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">system_time</span><span·class="p"·data-group-id="8251740910-4">(</span><span·class="ss">second</span><span·class="p"·data-group-id="8251740910-4">)</span><span·class="p">,</span><span·class="w"> |
| 2044 | ···</span><span·class="p"·data-group-id="8 | 2044 | ···</span><span·class="p"·data-group-id="8251740910-5">[</span><span·class="p"·data-group-id="8251740910-6">{</span><span·class="ss">offset</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"-02:00"</span><span·class="p"·data-group-id="8251740910-6">}</span><span·clas[·...·truncated·by·diffoscope;·len:·84,·SHA:·6be3fc094becb289a1e22230b9ae5fe4dbda3a5af04f749b0ebf9cc31fb6b6a7·...·]-3">)</span><span·class="p">.</span><span·class="w"> |
| 2045 | </span><span·class="s">"2018-04-23T10:56:52-02:00"</span><span·class="gp·unselectable"> | 2045 | </span><span·class="s">"2018-04-23T10:56:52-02:00"</span><span·class="gp·unselectable"> |
| 2046 | 3>·</span><span·class="nc">calendar</span><span·class="p">:</span><span·class="nf">system_time_to_rfc3339</span><span·class="p"·data-group-id="8 | 2046 | 3>·</span><span·class="nc">calendar</span><span·class="p">:</span><span·class="nf">system_time_to_rfc3339</span><span·class="p"·data-group-id="8251740910-7">(</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">system_time</span><span·class="p"·data-group-id="8251740910-8">(</span><span·class="ss">second</span><span·class="p"·data-group-id="8251740910-8">)</span><span·class="p">,</span><span·class="w"> |
| 2047 | ···</span><span·class="p"·data-group-id="8 | 2047 | ···</span><span·class="p"·data-group-id="8251740910-9">[</span><span·class="p"·data-group-id="8251740910-10">{</span><span·class="ss">offset</span><span·class="p">,</span><span·class="w">·</span><span·class="o">-</span><span·class="mi">7200</span><span·class="p"·data-group-id="8251740910-10">}</sp[·...·truncated·by·diffoscope;·len:·97,·SHA:·93f1dd1a22b28b22beca4191f665d7df556e2974fde4c0b5c2bab925973a5483·...·]-7">)</span><span·class="p">.</span><span·class="w"> |
| 2048 | </span><span·class="s">"2018-04-23T10:57:05-02:00"</span><span·class="gp·unselectable"> | 2048 | </span><span·class="s">"2018-04-23T10:57:05-02:00"</span><span·class="gp·unselectable"> |
| 2049 | 4>·</span><span·class="nc">calendar</span><span·class="p">:</span><span·class="nf">system_time_to_rfc3339</span><span·class="p"·data-group-id="8 | 2049 | 4>·</span><span·class="nc">calendar</span><span·class="p">:</span><span·class="nf">system_time_to_rfc3339</span><span·class="p"·data-group-id="8251740910-11">(</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">system_time</span><span·class="p"·data-group-id="8251740910-12">(</span><span·class="ss">millisecond</span><span·class="p"·data-group-id="8251740910-12">)</span><span·class="p">,</span><span·class="w"> |
| 2050 | ···</span><span·class="p"·data-group-id="8 | 2050 | ···</span><span·class="p"·data-group-id="8251740910-13">[</span><span·class="p"·data-group-id="8251740910-14">{</span><span·class="ss">unit</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">millisecond</span><span·class="p"·data-group-id="8251740910-14">}</span><span·class="p"[·...·truncated·by·diffoscope;·len:·620,·SHA:·1ddc2c4b9e1c5e0e69a6a78d25f8e3604d2e3b15beb728ca0b70c49879212bf7·...·]-11">)</span><span·class="p">.</span><span·class="w"> |
| 2051 | </span><span·class="s">"2018-04-23·12:57:20.482Z"</span><span·class="gp·unselectable"> | 2051 | </span><span·class="s">"2018-04-23·12:57:20.482Z"</span><span·class="gp·unselectable"> |
| 2052 | 5>·</span><span·class="nc">calendar</span><span·class="p">:</span><span·class="nf">system_time_to_rfc3339</span><span·class="p"·data-group-id="8 | 2052 | 5>·</span><span·class="nc">calendar</span><span·class="p">:</span><span·class="nf">system_time_to_rfc3339</span><span·class="p"·data-group-id="8251740910-17">(</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">system_time</span><span·class="p"·data-group-id="8251740910-18">(</span><span·class="ss">millisecond</span><span·class="p"·data-group-id="8251740910-18">)</span><span·class="p">,</span><span·class="w"> |
| 2053 | ···</span><span·class="p"·data-group-id="8 | 2053 | ···</span><span·class="p"·data-group-id="8251740910-19">[</span><span·class="p"·data-group-id="8251740910-20">{</span><span·class="ss">unit</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">millisecond</span><span·class="p"·data-group-id="8251740910-20">}</span><span·class="p"[·...·truncated·by·diffoscope;·len:·884,·SHA:·8bbdbcba9cb8fdd0c3d969eaa023e5604ccd568b415cac1022a8c15a60e55626·...·]-17">)</span><span·class="p">.</span><span·class="w"> |
| 2054 | </span><span·class="p"·data-group-id="8 | 2054 | </span><span·class="p"·data-group-id="8251740910-24"><<</span><span·class="s">"2018-04-23·12:57:20.482Z"</span><span·class="p"·data-group-id="8251740910-24">>></span></code></pre> |
| 2055 | ··</section> | 2055 | ··</section> |
| 2056 | </section> | 2056 | </section> |
| 2057 | <section·class="detail"·id="system_time_to_universal_time/2"> | 2057 | <section·class="detail"·id="system_time_to_universal_time/2"> |
| 2058 | ··<div·class="detail-header"> | 2058 | ··<div·class="detail-header"> |
| 2059 | ····<a·href="#system_time_to_universal_time/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 2059 | ····<a·href="#system_time_to_universal_time/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 2060 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 2060 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 2324, 15 lines modified | Offset 2324, 15 lines modified | ||
| 2324 | ······<p·class="built-using"> | 2324 | ······<p·class="built-using"> |
| 2325 | ········Built·using | 2325 | ········Built·using |
| 2326 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 2326 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 2327 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 2327 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 2328 | ······</p> | 2328 | ······</p> |
| 2329 | <p>Copyright·©·1996-202 | 2329 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 2330 | ····</footer> | 2330 | ····</footer> |
| 2331 | ··</div> | 2331 | ··</div> |
| 2332 | </main> | 2332 | </main> |
| 2333 | </div> | 2333 | </div> |
| 2334 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 2334 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 2335 | ··<script> | 2335 | ··<script> |
| 2336 | ··let·initialized·=·false; | 2336 | ··let·initialized·=·false; |
| Offset 148, 28 lines modified | Offset 148, 28 lines modified | ||
| 148 | </h2> | 148 | </h2> |
| 149 | <p>The·custom·shell·will·be·implemented·in·an·<a·href="escript.html"><code·class="inline">escript</code></a>,·but·it·could·just | 149 | <p>The·custom·shell·will·be·implemented·in·an·<a·href="escript.html"><code·class="inline">escript</code></a>,·but·it·could·just |
| 150 | as·well·be·in·a·regular·system·or·as·a·remote·shell.·To·start·a·custom·shell | 150 | as·well·be·in·a·regular·system·or·as·a·remote·shell.·To·start·a·custom·shell |
| 151 | we·first·need·to·start·Erlang·in·<code·class="inline">-noinput</code>·or·<code·class="inline">-noshell</code>·mode.·<a·href="escript.html"><code·class="inline">escript</code></a>·are | 151 | we·first·need·to·start·Erlang·in·<code·class="inline">-noinput</code>·or·<code·class="inline">-noshell</code>·mode.·<a·href="escript.html"><code·class="inline">escript</code></a>·are |
| 152 | started·by·default·in·<code·class="inline">-noshell</code>·mode,·so·we·don't·have·to·do·anything·special·here. | 152 | started·by·default·in·<code·class="inline">-noshell</code>·mode,·so·we·don't·have·to·do·anything·special·here. |
| 153 | To·start·the·custom·shell·we·then·call·<a·href="shell.html#start_interactive/1"><code·class="inline">shell:start_interactive/1</code></a>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="ch">#!/usr/bin/env·escript | 153 | To·start·the·custom·shell·we·then·call·<a·href="shell.html#start_interactive/1"><code·class="inline">shell:start_interactive/1</code></a>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="ch">#!/usr/bin/env·escript |
| 154 | </span><span·class="c1">%%·pshell.es</span><span·class="w"> | 154 | </span><span·class="c1">%%·pshell.es</span><span·class="w"> |
| 155 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 155 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="7519957350-1">(</span><span·class="p"·data-group-id="7519957350-2">[</span><span·class="ss">start</span><span·class="p">/</span><span·class="mi">0</span><span·class="p"·data-group-id="7519957350-2">]</span><span·class="p"·data-group-id="7519957350-1">)</span><span·class="p">.</span><span·class="w"> |
| 156 | </span><span·class="nf">main</span><span·class="p"·data-group-id=" | 156 | </span><span·class="nf">main</span><span·class="p"·data-group-id="7519957350-3">(</span><span·class="p">_</span><span·class="n">Args</span><span·class="p"·data-group-id="7519957350-3">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 157 | ····</span><span·class="nc">shell</span><span·class="p">:</span><span·class="nf">start_interactive</span><span·class="p"·data-group-id=" | 157 | ····</span><span·class="nc">shell</span><span·class="p">:</span><span·class="nf">start_interactive</span><span·class="p"·data-group-id="7519957350-4">(</span><span·class="p"·data-group-id="7519957350-5">{</span><span·class="o">?</span><span·class="n">MODULE</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">start</span><span·class="p">,</span><span·class="w">·</span><sp[·...·truncated·by·diffoscope;·len:·197,·SHA:·5ddd2e8c6cc6c77b9cb96cd0376a9d2acd901a0e851d03334cf1a174e8312a7c·...·]-4">)</span><span·class="p">,</span><span·class="w"> |
| 158 | ····</span><span·class="nc">timer</span><span·class="p">:</span><span·class="nf">sleep</span><span·class="p"·data-group-id=" | 158 | ····</span><span·class="nc">timer</span><span·class="p">:</span><span·class="nf">sleep</span><span·class="p"·data-group-id="7519957350-7">(</span><span·class="ss">infinity</span><span·class="p"·data-group-id="7519957350-7">)</span><span·class="p">.</span><span·class="w">·</span><span·class="c1">%%·Make·sure·the·escript·does·not·exit</span><span·class="w"> |
| 159 | </span><span·class="w"> | 159 | </span><span·class="w"> |
| 160 | </span><span·class="p">-</span><span·class="na">spec</span><span·class="w">·</span><span·class="nf">start</span><span·class="p"·data-group-id=" | 160 | </span><span·class="p">-</span><span·class="na">spec</span><span·class="w">·</span><span·class="nf">start</span><span·class="p"·data-group-id="7519957350-8">(</span><span·class="p"·data-group-id="7519957350-8">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="nf">pid</span><span·class="p"·data-group-id="7519957350-9">(</span><span·class="p"·data-grou[·...·truncated·by·diffoscope;·len:·16,·SHA:·89a071ad957ef10eac2fdb706abd1c793fe9ba78fc8f87fd18b3f5d3e92cc9ef·...·]-9">)</span><span·class="p">.</span><span·class="w"> |
| 161 | </span><span·class="nf">start</span><span·class="p"·data-group-id=" | 161 | </span><span·class="nf">start</span><span·class="p"·data-group-id="7519957350-10">(</span><span·class="p"·data-group-id="7519957350-10">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 162 | ····</span><span·class="nf">spawn</span><span·class="p"·data-group-id=" | 162 | ····</span><span·class="nf">spawn</span><span·class="p"·data-group-id="7519957350-11">(</span><span·class="nf">fun</span><span·class="p"·data-group-id="7519957350-12">(</span><span·class="p"·data-group-id="7519957350-12">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 163 | ··················</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 163 | ··················</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="7519957350-13">(</span><span·class="s">~"Starting·process·inspection·shell</span><span·class="si">~n</span><span·class="s">"</span><span·class="p"·data-group-id="7519957350-13">)</span><span·class="p">,</span><span·class="w"> |
| 164 | ··················</span><span·class="nf">loop</span><span·class="p"·data-group-id=" | 164 | ··················</span><span·class="nf">loop</span><span·class="p"·data-group-id="7519957350-14">(</span><span·class="p"·data-group-id="7519957350-14">)</span><span·class="w"> |
| 165 | ··········</span><span·class="k">end</span><span·class="p"·data-group-id=" | 165 | ··········</span><span·class="k">end</span><span·class="p"·data-group-id="7519957350-11">)</span><span·class="p">.</span><span·class="w"> |
| 166 | </span><span·class="nf">loop</span><span·class="p"·data-group-id=" | 166 | </span><span·class="nf">loop</span><span·class="p"·data-group-id="7519957350-15">(</span><span·class="p"·data-group-id="7519957350-15">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 167 | ····</span><span·class="k">receive</span><span·class="w">·</span><span·class="p">_</span><span·class="n">M</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="nf">loop</span><span·class="p"·data-group-id=" | 167 | ····</span><span·class="k">receive</span><span·class="w">·</span><span·class="p">_</span><span·class="n">M</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="nf">loop</span><span·class="p"·data-group-id="7519957350-16">(</span><span·class="p"·data-group-id="7519957350-16">)</span><span·class="w">·</span><span·class="k">end</span><span·class="p">.</span></code></pre><p>If·we·run·the·above·we·will·get·this:</p><pre><code·class="makeup·shell"·translate="no"><span·class="gp·unselectable">$·</span><span·class="">./pshell.es |
| 168 | </span><span·class="">Erlang/OTP·28·[DEVELOPMENT]·[erts-15.0.1]·[source-b395339a02]·[64-bit]·[smp:8:8]·[ds:8:8:10]·[async-threads:1]·[jit:ns] | 168 | </span><span·class="">Erlang/OTP·28·[DEVELOPMENT]·[erts-15.0.1]·[source-b395339a02]·[64-bit]·[smp:8:8]·[ds:8:8:10]·[async-threads:1]·[jit:ns] |
| 169 | </span><span·class=""> | 169 | </span><span·class=""> |
| 170 | </span><span·class="">Starting·process·inspection·shell | 170 | </span><span·class="">Starting·process·inspection·shell |
| 171 | </span><span·class=""> | 171 | </span><span·class=""> |
| 172 | </span></code></pre><p>The·<a·href="io.html#t:standard_io/0"><code·class="inline">io:standard_io/0</code></a>·of·the·created·shell·process·will·be·set·to·the | 172 | </span></code></pre><p>The·<a·href="io.html#t:standard_io/0"><code·class="inline">io:standard_io/0</code></a>·of·the·created·shell·process·will·be·set·to·the |
| 173 | Erlang·line·editor,·which·means·that·we·can·use·the·normal·<a·href="io.html"><code·class="inline">io</code></a>·functions | 173 | Erlang·line·editor,·which·means·that·we·can·use·the·normal·<a·href="io.html"><code·class="inline">io</code></a>·functions |
| 174 | to·read·and·write·data·to·the·terminal.</p><h2·id="adding-our-first-command"·class="section-heading"> | 174 | to·read·and·write·data·to·the·terminal.</p><h2·id="adding-our-first-command"·class="section-heading"> |
| Offset 178, 40 lines modified | Offset 178, 40 lines modified | ||
| 178 | ··</a> | 178 | ··</a> |
| 179 | ··<span·class="text">Adding·our·first·command</span> | 179 | ··<span·class="text">Adding·our·first·command</span> |
| 180 | </h2> | 180 | </h2> |
| 181 | <p>Let's·start·adding·the·shell·interface.·We·will·use·<a·href="io.html#get_line/1"><code·class="inline">io:get_line/1</code></a>·to·read·from | 181 | <p>Let's·start·adding·the·shell·interface.·We·will·use·<a·href="io.html#get_line/1"><code·class="inline">io:get_line/1</code></a>·to·read·from |
| 182 | <a·href="io.html#t:standard_io/0"><code·class="inline">io:standard_io/0</code></a>·as·this·shell·will·be·line·based.·However,·for·a·more·complex | 182 | <a·href="io.html#t:standard_io/0"><code·class="inline">io:standard_io/0</code></a>·as·this·shell·will·be·line·based.·However,·for·a·more·complex |
| 183 | shell·it·is·better·to·send·<a·href="io_protocol.html#input-requests"><code·class="inline">get_until</code>·I/O·requests</a> | 183 | shell·it·is·better·to·send·<a·href="io_protocol.html#input-requests"><code·class="inline">get_until</code>·I/O·requests</a> |
| 184 | as·commands·read·that·way·can·span·multiple·lines.·So·we·expand·our·<code·class="inline">loop/0</code>·with | 184 | as·commands·read·that·way·can·span·multiple·lines.·So·we·expand·our·<code·class="inline">loop/0</code>·with |
| 185 | a·<a·href="io.html#get_line/1"><code·class="inline">io:get_line/1</code></a>·and·pass·the·results·to·our·parser.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">loop</span><span·class="p"·data-group-id=" | 185 | a·<a·href="io.html#get_line/1"><code·class="inline">io:get_line/1</code></a>·and·pass·the·results·to·our·parser.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">loop</span><span·class="p"·data-group-id="5786153298-1">(</span><span·class="p"·data-group-id="5786153298-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 186 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">get_line</span><span·class="p"·data-group-id=" | 186 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">get_line</span><span·class="p"·data-group-id="5786153298-2">(</span><span·class="s">">·"</span><span·class="p"·data-group-id="5786153298-2">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 187 | ········</span><span·class="ss">eof</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">ok</span><span·class="p">;</span><span·class="w"> | 187 | ········</span><span·class="ss">eof</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">ok</span><span·class="p">;</span><span·class="w"> |
| 188 | ········</span><span·class="p"·data-group-id=" | 188 | ········</span><span·class="p"·data-group-id="5786153298-3">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Reason</span><span·class="p"·data-group-id="5786153298-3">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span[·...·truncated·by·diffoscope;·len:·152,·SHA:·3da5b452a56c0b1e2b6a7832ec666eb679db4efb51d303ce275d95bde9004e46·...·]-4">)</span><span·class="p">;</span><span·class="w"> |
| 189 | ········</span><span·class="n">Data</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="nf">eval</span><span·class="p"·data-group-id=" | 189 | ········</span><span·class="n">Data</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="nf">eval</span><span·class="p"·data-group-id="5786153298-5">(</span><span·class="nc">string</span><span·class="p">:</span><span·class="nf">trim</span><span·class="p"·data-group-id="5786153298-6">(</span><span·class="n">Data</span><span·class="p"·data-group-id="5786153298-6">)</span><span·class="p"·dat[·...·truncated·by·diffoscope;·len:·22,·SHA:·b8d5d26c8903ee775fe3c6b10ef3def884c33ac7cbff2140f061a299f716415c·...·]-5">)</span><span·class="w"> |
| 190 | ····</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> | 190 | ····</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> |
| 191 | ····</span><span·class="nf">loop</span><span·class="p"·data-group-id=" | 191 | ····</span><span·class="nf">loop</span><span·class="p"·data-group-id="5786153298-7">(</span><span·class="p"·data-group-id="5786153298-7">)</span><span·class="p">.</span><span·class="w"> |
| 192 | </span><span·class="nf">eval</span><span·class="p"·data-group-id=" | 192 | </span><span·class="nf">eval</span><span·class="p"·data-group-id="5786153298-8">(</span><span·class="s">"list"</span><span·class="p"·data-group-id="5786153298-8">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 193 | ····</span><span·class="n">Format</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"·~.10ts·|·~.10ts·|·~.10ts</span><span·class="si">~n</span><span·class="s">"</span><span·class="p">,</span><span·class="w"> | 193 | ····</span><span·class="n">Format</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"·~.10ts·|·~.10ts·|·~.10ts</span><span·class="si">~n</span><span·class="s">"</span><span·class="p">,</span><span·class="w"> |
| 194 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 194 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="5786153298-9">(</span><span·class="n">Format</span><span·class="p">,</span><span·class="p"·data-group-id="5786153298-10">[</span><span·class="s">"Pid"</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"Name"</span><s[·...·truncated·by·diffoscope;·len:·184,·SHA:·80fcaa4cdc4700016235bcaa04c36277c728db6b1a73153aa3ca1877e20c0fe5·...·]-9">)</span><span·class="p">,</span><span·class="w"> |
| 195 | ····</span><span·class="p"·data-group-id=" | 195 | ····</span><span·class="p"·data-group-id="5786153298-11">[</span><span·class="k">begin</span><span·class="w"> |
| 196 | ·········</span><span·class="p"·data-group-id=" | 196 | ·········</span><span·class="p"·data-group-id="5786153298-12">[</span><span·class="p"·data-group-id="5786153298-13">{</span><span·class="ss">registered_name</span><span·class="p">,</span><span·class="n">Name</span><span·class="p"·data-group-id="5786153298-13">}</span><span·class="p">,</span><span·class[·...·truncated·by·diffoscope;·len:·229,·SHA:·f53d97a68221828d2bd19e89de4d4f3d44473e76e143b0d3f6f6c6dcc5d6d61c·...·]-12">]</span><span·class="w"> |
| 197 | ·············</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">process_info</span><span·class="p"·data-group-id=" | 197 | ·············</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">process_info</span><span·class="p"·data-group-id="5786153298-15">(</span><span·class="n">Pid</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="5786153298-16">[</span><span·class="ss">registered_name</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">m[·...·truncated·by·diffoscope;·len:·118,·SHA:·e572657572d29ef5ae37d1d77d22b32315d529d9e5855f4dcd300da2af706b01·...·]-15">)</span><span·class="p">,</span><span·class="w"> |
| 198 | ·········</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 198 | ·········</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="5786153298-17">(</span><span·class="n">Format</span><span·class="p">,</span><span·class="p"·data-group-id="5786153298-18">[</span><span·class="nf">to_list</span><span·class="p"·data-group-id="5786153298-19">(</span><span·class="n">Pid</span><span·class="p"[·...·truncated·by·diffoscope;·len:·561,·SHA:·8960dbb6cbc32a279b1593c1abd9476b1c5f52d1b61cc3f864c8576f162de687·...·]-17">)</span><span·class="w"> |
| 199 | ·····</span><span·class="k">end</span><span·class="w">·</span><span·class="p">||</span><span·class="w">·</span><span·class="n">Pid</span><span·class="w">·</span><span·class="o"><-</span><span·class="w">·</span><span·class="nf">processes</span><span·class="p"·data-group-id=" | 199 | ·····</span><span·class="k">end</span><span·class="w">·</span><span·class="p">||</span><span·class="w">·</span><span·class="n">Pid</span><span·class="w">·</span><span·class="o"><-</span><span·class="w">·</span><span·class="nf">processes</span><span·class="p"·data-group-id="5786153298-22">(</span><span·class="p"·data-group-id="5786153298-22">)</span><span·class="p"·data-group-id="5786153298-11">]</span><span·class="p">;</span><span·class="w"> |
| 200 | </span><span·class="nf">eval</span><span·class="p"·data-group-id=" | 200 | </span><span·class="nf">eval</span><span·class="p"·data-group-id="5786153298-23">(</span><span·class="n">Unknown</span><span·class="p"·data-group-id="5786153298-23">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 201 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 201 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="5786153298-24">(</span><span·class="s">"Unknown·command:·'~ts'</span><span·class="si">~n</span><span·class="s">"</span><span·class="p">,</span><span·class="p"·data-group-id="5786153298-25">[</span><span·class="n">Unknown</span><span·class[·...·truncated·by·diffoscope;·len:·84,·SHA:·c0625f67be2ac873afc0d14980ed5a0a4144610b4c299ee454c06c67746fafa1·...·]-24">)</span><span·class="p">.</span><span·class="w"> |
| 202 | </span><span·class="nf">to_list</span><span·class="p"·data-group-id=" | 202 | </span><span·class="nf">to_list</span><span·class="p"·data-group-id="5786153298-26">(</span><span·class="n">Pid</span><span·class="p"·data-group-id="5786153298-26">)</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><span·class="nf">is_pid</span><span·class="p"·data-group-id="5786153298-27">(<[·...·truncated·by·diffoscope;·len:·73,·SHA:·99a241b6efc47cefc34633c8b836ce8d0b66bb466cb6baa4ec454211e58c79f2·...·]-27">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 203 | ····</span><span·class="nf">pid_to_list</span><span·class="p"·data-group-id=" | 203 | ····</span><span·class="nf">pid_to_list</span><span·class="p"·data-group-id="5786153298-28">(</span><span·class="n">Pid</span><span·class="p"·data-group-id="5786153298-28">)</span><span·class="p">;</span><span·class="w"> |
| 204 | </span><span·class="nf">to_list</span><span·class="p"·data-group-id=" | 204 | </span><span·class="nf">to_list</span><span·class="p"·data-group-id="5786153298-29">(</span><span·class="n">Atom</span><span·class="p"·data-group-id="5786153298-29">)</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><span·class="nf">is_atom</span><span·class="p"·data-group-id="5786153298-30">[·...·truncated·by·diffoscope;·len:·76,·SHA:·489e6bc1b701390d18d67eea1890783ba64ce30a8ff296af1aa58d6e483e848f·...·]-30">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 205 | ····</span><span·class="nf">atom_to_list</span><span·class="p"·data-group-id=" | 205 | ····</span><span·class="nf">atom_to_list</span><span·class="p"·data-group-id="5786153298-31">(</span><span·class="n">Atom</span><span·class="p"·data-group-id="5786153298-31">)</span><span·class="p">;</span><span·class="w"> |
| 206 | </span><span·class="nf">to_list</span><span·class="p"·data-group-id=" | 206 | </span><span·class="nf">to_list</span><span·class="p"·data-group-id="5786153298-32">(</span><span·class="n">Int</span><span·class="p"·data-group-id="5786153298-32">)</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><span·class="nf">is_integer</span><span·class="p"·data-group-id="5786153298-33[·...·truncated·by·diffoscope;·len:·77,·SHA:·a2c7213d5c8f008a2e0a538afe132607065c9c91952468bdd9f3a8faf35c1d2f·...·]-33">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 207 | ····</span><span·class="nf">integer_to_list</span><span·class="p"·data-group-id=" | 207 | ····</span><span·class="nf">integer_to_list</span><span·class="p"·data-group-id="5786153298-34">(</span><span·class="n">Int</span><span·class="p"·data-group-id="5786153298-34">)</span><span·class="p">;</span><span·class="w"> |
| 208 | </span><span·class="nf">to_list</span><span·class="p"·data-group-id=" | 208 | </span><span·class="nf">to_list</span><span·class="p"·data-group-id="5786153298-35">(</span><span·class="n">List</span><span·class="p"·data-group-id="5786153298-35">)</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><span·class="nf">is_list</span><span·class="p"·data-group-id="5786153298-36">[·...·truncated·by·diffoscope;·len:·76,·SHA:·5e1bfda5f13c2e66ed33691a0535cf56b5f101f755315e713ffe9478cbcaf1c3·...·]-36">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 209 | ····</span><span·class="n">List</span><span·class="p">.</span></code></pre><p>If·we·run·the·above·we·will·get·this:</p><pre><code·class="txt">$·./pshell.es | 209 | ····</span><span·class="n">List</span><span·class="p">.</span></code></pre><p>If·we·run·the·above·we·will·get·this:</p><pre><code·class="txt">$·./pshell.es |
| 210 | Erlang/OTP·28·[DEVELOPMENT]·[erts-15.0.1]·[source-b395339a02]·[64-bit]·[smp:8:8]·[ds:8:8:10]·[async-threads:1]·[jit:ns] | 210 | Erlang/OTP·28·[DEVELOPMENT]·[erts-15.0.1]·[source-b395339a02]·[64-bit]·[smp:8:8]·[ds:8:8:10]·[async-threads:1]·[jit:ns] |
| 211 | Starting·process·inspection·shell | 211 | Starting·process·inspection·shell |
| 212 | >·list | 212 | >·list |
| 213 | ·Pid········|·Name·······|·MsgQ·Len·· | 213 | ·Pid········|·Name·······|·MsgQ·Len·· |
| 214 | ·<0.0.0>····|·init·······|·0········· | 214 | ·<0.0.0>····|·init·······|·0········· |
| Offset 223, 70 lines modified | Offset 223, 70 lines modified | ||
| 223 | ·<0.6.0>····|············|·0········· | 223 | ·<0.6.0>····|············|·0········· |
| 224 | ·<0.7.0>····|············|·0········· | 224 | ·<0.7.0>····|············|·0········· |
| 225 | ·<0.8.0>····|·socket_reg·|·0········· | 225 | ·<0.8.0>····|·socket_reg·|·0········· |
| 226 | ·<0.10.0>···|············|·0········· | 226 | ·<0.10.0>···|············|·0········· |
| 227 | ·<0.11.0>···|·erl_prim_l·|·0········· | 227 | ·<0.11.0>···|·erl_prim_l·|·0········· |
| 228 | ·<0.43.0>···|·logger·····|·0········· | 228 | ·<0.43.0>···|·logger·····|·0········· |
| 229 | ·<0.45.0>···|·applicatio·|·0 | 229 | ·<0.45.0>···|·applicatio·|·0 |
| 230 | ...</code></pre><p>With·this·all·in·place·we·can·now·easily·add·<code·class="inline">inspect</code>,·<code·class="inline">suspend</code>·and·<code·class="inline">resume</code>·as·well.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">eval</span><span·class="p"·data-group-id=" | 230 | ...</code></pre><p>With·this·all·in·place·we·can·now·easily·add·<code·class="inline">inspect</code>,·<code·class="inline">suspend</code>·and·<code·class="inline">resume</code>·as·well.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">eval</span><span·class="p"·data-group-id="8261127118-1">(</span><span·class="s">"inspect·"</span><span·class="w">·</span><span·class="o">++</span><span·class="w">·</span><span·class="n">PidStr</span><span·class="p"·data-group-id="8261127118-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 231 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nf">parse_pid</span><span·class="p"·data-group-id=" | 231 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nf">parse_pid</span><span·class="p"·data-group-id="8261127118-2">(</span><span·class="n">PidStr</span><span·class="p"·data-group-id="8261127118-2">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 232 | ········</span><span·class="ss">invalid</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">ok</span><span·class="p">;</span><span·class="w"> | 232 | ········</span><span·class="ss">invalid</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">ok</span><span·class="p">;</span><span·class="w"> |
| 233 | ········</span><span·class="n">Pid</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 233 | ········</span><span·class="n">Pid</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 234 | ············</span><span·class="p"·data-group-id=" | 234 | ············</span><span·class="p"·data-group-id="8261127118-3">[</span><span·class="p"·data-group-id="8261127118-4">{</span><span·class="ss">registered_name</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Name</span><span·class="p"·data-group-id="8261127118-4">}</span><span·class="p[·...·truncated·by·diffoscope;·len:·814,·SHA:·5f777a351ddd151086bd7dc95d69b58dba0960d177d80df70ac3ade7ea861551·...·]-3">]</span><span·class="w">·</span><span·class="o">=</span><span·class="w"> |
| 235 | ················</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">process_info</span><span·class="p"·data-group-id=" | 235 | ················</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">process_info</span><span·class="p"·data-group-id="8261127118-8">(</span><span·class="n">Pid</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8261127118-9">[</span><span·class="ss">registered_name</span><span·class="p">,</span><span·class="w">·</span><span·class="nb">mem[·...·truncated·by·diffoscope;·len:·262,·SHA:·8accb6f3b7a860547bdba3df6334f2e81d40d8d39c559599b75f131c496d2763·...·]-8">)</span><span·class="p">,</span><span·class="w"> |
| 236 | ············</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 236 | ············</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="8261127118-10">(</span><span·class="s">"Pid:·</span><span·class="si">~p</span><span·class="si">~n</span><span·class="s">Name:·~ts</span><span·class="si">~n</span><span·class="s">Status:·</span><span·class="si">~p</span><span·class="si">~n</span><span·class="s">Memory:·</span><span·class="si">~p</span><span·class="si">~n</span><span·class="s">Messages:·</span><span·class="si">~p</span><span·class="si">~n</span><span·class="s">"</span><span·class="p">,</span><span·class="w"> |
| 237 | ······················</span><span·class="p"·data-group-id=" | 237 | ······················</span><span·class="p"·data-group-id="8261127118-11">[</span><span·class="n">Pid</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">to_list</span><span·class="p"·data-group-id="8261127118-12">(</span><span·class="n">Name</span><span·class="p"·data-group-id="8261127118-12">)[·...·truncated·by·diffoscope;·len:·335,·SHA:·cbd611cb0316db9be6882e50010334b68ec87737f8bd9d707b4c342a89c2cdcc·...·]-10">)</span><span·class="w"> |
| 238 | ····</span><span·class="k">end</span><span·class="p">;</span><span·class="w"> | 238 | ····</span><span·class="k">end</span><span·class="p">;</span><span·class="w"> |
| 239 | </span><span·class="nf">eval</span><span·class="p"·data-group-id=" | 239 | </span><span·class="nf">eval</span><span·class="p"·data-group-id="8261127118-13">(</span><span·class="s">"suspend·"</span><span·class="w">·</span><span·class="o">++</span><span·class="w">·</span><span·class="n">PidStr</span><span·class="p"·data-group-id="8261127118-13">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 240 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nf">parse_pid</span><span·class="p"·data-group-id=" | 240 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nf">parse_pid</span><span·class="p"·data-group-id="8261127118-14">(</span><span·class="n">PidStr</span><span·class="p"·data-group-id="8261127118-14">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 241 | ········</span><span·class="ss">invalid</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">ok</span><span·class="p">;</span><span·class="w"> | 241 | ········</span><span·class="ss">invalid</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">ok</span><span·class="p">;</span><span·class="w"> |
| 242 | ········</span><span·class="n">Pid</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 242 | ········</span><span·class="n">Pid</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 243 | ············</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">suspend_process</span><span·class="p"·data-group-id=" | 243 | ············</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">suspend_process</span><span·class="p"·data-group-id="8261127118-15">(</span><span·class="n">Pid</span><span·class="p"·data-group-id="8261127118-15">)</span><span·class="p">,</span><span·class="w"> |
| 244 | ············</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 244 | ············</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="8261127118-16">(</span><span·class="s">"Suspeneded·~ts</span><span·class="si">~n</span><span·class="s">"</span><span·class="p"·data-group-id="8261127118-16">)</span><span·class="w"> |
| 245 | ····</span><span·class="k">end</span><span·class="p">;</span><span·class="w"> | 245 | ····</span><span·class="k">end</span><span·class="p">;</span><span·class="w"> |
| 246 | </span><span·class="nf">eval</span><span·class="p"·data-group-id=" | 246 | </span><span·class="nf">eval</span><span·class="p"·data-group-id="8261127118-17">(</span><span·class="s">"resume·"</span><span·class="w">·</span><span·class="o">++</span><span·class="w">·</span><span·class="n">PidStr</span><span·class="p"·data-group-id="8261127118-17">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 247 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nf">parse_pid</span><span·class="p"·data-group-id=" | 247 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nf">parse_pid</span><span·class="p"·data-group-id="8261127118-18">(</span><span·class="n">PidStr</span><span·class="p"·data-group-id="8261127118-18">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 248 | ········</span><span·class="ss">invalid</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">ok</span><span·class="p">;</span><span·class="w"> | 248 | ········</span><span·class="ss">invalid</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">ok</span><span·class="p">;</span><span·class="w"> |
| 249 | ········</span><span·class="n">Pid</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 249 | ········</span><span·class="n">Pid</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 250 | ············</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">resumne_process</span><span·class="p"·data-group-id=" | 250 | ············</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">resumne_process</span><span·class="p"·data-group-id="8261127118-19">(</span><span·class="n">Pid</span><span·class="p"·data-group-id="8261127118-19">)</span><span·class="p">,</span><span·class="w"> |
| 251 | ············</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 251 | ············</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="8261127118-20">(</span><span·class="s">"Resumed·~ts</span><span·class="si">~n</span><span·class="s">"</span><span·class="p"·data-group-id="8261127118-20">)</span><span·class="w"> |
| 252 | ····</span><span·class="k">end</span><span·class="p">;</span></code></pre><h2·id="adding-autocompletion"·class="section-heading"> | 252 | ····</span><span·class="k">end</span><span·class="p">;</span></code></pre><h2·id="adding-autocompletion"·class="section-heading"> |
| 253 | ··<a·href="#adding-autocompletion"·class="hover-link"> | 253 | ··<a·href="#adding-autocompletion"·class="hover-link"> |
| 254 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 254 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 255 | ··</a> | 255 | ··</a> |
| 256 | ··<span·class="text">Adding·autocompletion</span> | 256 | ··<span·class="text">Adding·autocompletion</span> |
| 257 | </h2> | 257 | </h2> |
| 258 | <p>Wouldn't·it·be·great·if·we·could·add·some·simple·auto-completion·for·our·shell?·We·can·do·that | 258 | <p>Wouldn't·it·be·great·if·we·could·add·some·simple·auto-completion·for·our·shell?·We·can·do·that |
| 259 | by·setting·a·<a·href="edlin_expand.html"><code·class="inline">edlin_expand</code></a>·fun·for·our·shell.·This·is·done·by·calling·<a·href="io.html#setopts/2"><code·class="inline">io:setopts([{expand_fun,·Fun}])</code></a>.·The·fun·that·we·provide·is·will·receive·the·reversed·current·line·from | 259 | by·setting·a·<a·href="edlin_expand.html"><code·class="inline">edlin_expand</code></a>·fun·for·our·shell.·This·is·done·by·calling·<a·href="io.html#setopts/2"><code·class="inline">io:setopts([{expand_fun,·Fun}])</code></a>.·The·fun·that·we·provide·is·will·receive·the·reversed·current·line·from |
| 260 | <a·href="edlin.html"><code·class="inline">edlin</code></a>·and·is·expected·to·return·possible·expansions.·Let's·start·by·adding·a·simple·fun·to | 260 | <a·href="edlin.html"><code·class="inline">edlin</code></a>·and·is·expected·to·return·possible·expansions.·Let's·start·by·adding·a·simple·fun·to |
| 261 | expand·our·commands.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">spec</span><span·class="w">·</span><span·class="nf">start</span><span·class="p"·data-group-id=" | 261 | expand·our·commands.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">spec</span><span·class="w">·</span><span·class="nf">start</span><span·class="p"·data-group-id="6598614371-1">(</span><span·class="p"·data-group-id="6598614371-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="nf">pid</span><span·class="p"·data-group-id="6598614371-2">(</span><span·class="p"·data-grou[·...·truncated·by·diffoscope;·len:·16,·SHA:·2ac94763dd9680694479bcfd8ea7457bf91d17e69e981a2f40aa25d293578cd6·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 262 | </span><span·class="nf">start</span><span·class="p"·data-group-id=" | 262 | </span><span·class="nf">start</span><span·class="p"·data-group-id="6598614371-3">(</span><span·class="p"·data-group-id="6598614371-3">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 263 | ····</span><span·class="nf">spawn</span><span·class="p"·data-group-id=" | 263 | ····</span><span·class="nf">spawn</span><span·class="p"·data-group-id="6598614371-4">(</span><span·class="nf">fun</span><span·class="p"·data-group-id="6598614371-5">(</span><span·class="p"·data-group-id="6598614371-5">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 264 | ··················</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">setopts</span><span·class="p"·data-group-id=" | 264 | ··················</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">setopts</span><span·class="p"·data-group-id="6598614371-6">(</span><span·class="p"·data-group-id="6598614371-7">[</span><span·class="p"·data-group-id="6598614371-8">{</span><span·class="ss">expand_fun</span><span·class="p">,</span><span·class="w">·</span><span·class="k">fun</span><span·class="w">·</s[·...·truncated·by·diffoscope;·len:·234,·SHA:·f5b0264ff11576a6a0e0e28d6cc7c1f3fb49878488df719f42222d1726e7a063·...·]-6">)</span><span·class="p">,</span><span·class="w"> |
| 265 | ··················</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 265 | ··················</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="6598614371-9">(</span><span·class="s">~"Starting·process·inspection·shell</span><span·class="si">~n</span><span·class="s">"</span><span·class="p"·data-group-id="6598614371-9">)</span><span·class="p">,</span><span·class="w"> |
| 266 | ··················</span><span·class="nf">loop</span><span·class="p"·data-group-id=" | 266 | ··················</span><span·class="nf">loop</span><span·class="p"·data-group-id="6598614371-10">(</span><span·class="p"·data-group-id="6598614371-10">)</span><span·class="w"> |
| 267 | ··········</span><span·class="k">end</span><span·class="p"·data-group-id=" | 267 | ··········</span><span·class="k">end</span><span·class="p"·data-group-id="6598614371-4">)</span><span·class="p">.</span><span·class="w"> |
| 268 | </span><span·class="w"> | 268 | </span><span·class="w"> |
| 269 | </span><span·class="p">-</span><span·class="na">spec</span><span·class="w">·</span><span·class="nf">expand_fun</span><span·class="p"·data-group-id=" | 269 | </span><span·class="p">-</span><span·class="na">spec</span><span·class="w">·</span><span·class="nf">expand_fun</span><span·class="p"·data-group-id="6598614371-11">(</span><span·class="n">ReverseLine</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">string</span><span·class="p"·data-group-id="6598614371-12">(</span><span·class="p"·dat[·...·truncated·by·diffoscope;·len:·795,·SHA:·c54e751b2211294602b7ed13e3297101109ca476fc33241e7c4cbc4ea05b2173·...·]-13">}</span><span·class="w">·</span><span·class="p">|</span><span·class="w"> |
| 270 | ··········</span><span·class="p"·data-group-id=" | 270 | ··········</span><span·class="p"·data-group-id="6598614371-17">{</span><span·class="ss">no</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">nil</span><span·class="p"·data-group-id="6598614371-18">(</span><span·class="p"·data-group-id="6598614371-18">)</span><span·class="p">,</span>[·...·truncated·by·diffoscope;·len:·200,·SHA:·375b815adad1c84cdfc961b8848a90a8be895f587dd775c562578de689051ff2·...·]-17">}</span><span·class="p">.</span><span·class="w"> |
| 271 | </span><span·class="nf">expand_fun</span><span·class="p"·data-group-id=" | 271 | </span><span·class="nf">expand_fun</span><span·class="p"·data-group-id="6598614371-20">(</span><span·class="s">""</span><span·class="p"·data-group-id="6598614371-20">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="c1">%%·If·line·is·empty,·we·list·all·available·commands</span><span·class="w"> |
| 272 | ····</span><span·class="p"·data-group-id=" | 272 | ····</span><span·class="p"·data-group-id="6598614371-21">{</span><span·class="ss">yes</span><span·class="p">,</span><span·class="w">·</span><span·class="s">""</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6598614371-22">[</span><span·class="s">"[·...·truncated·by·diffoscope;·len:·382,·SHA:·adc987c07fd1f3c73d6ddac1ac52d1342768bc76467232a9dfb0430e6b86067a·...·]-21">}</span><span·class="p">;</span><span·class="w"> |
| 273 | </span><span·class="nf">expand_fun</span><span·class="p"·data-group-id=" | 273 | </span><span·class="nf">expand_fun</span><span·class="p"·data-group-id="6598614371-23">(</span><span·class="n">Curr</span><span·class="p"·data-group-id="6598614371-23">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 274 | ····</span><span·class="nf">expand_fun</span><span·class="p"·data-group-id=" | 274 | ····</span><span·class="nf">expand_fun</span><span·class="p"·data-group-id="6598614371-24">(</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">reverse</span><span·class="p"·data-group-id="6598614371-25">(</span><span·class="n">Curr</span><span·class="p"·data-group-id="6598614371-25">)</span><span·class="p[·...·truncated·by·diffoscope;·len:·491,·SHA:·965824741eb4acdb0b1808025c27896112ee47d72337d710575853a03ecaf369·...·]-24">)</span><span·class="p">.</span><span·class="w"> |
| 275 | </span><span·class="nf">expand_fun</span><span·class="p"·data-group-id=" | 275 | </span><span·class="nf">expand_fun</span><span·class="p"·data-group-id="6598614371-27">(</span><span·class="p">_</span><span·class="n">Curr</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6598614371-28">[</span><span·class="p"·data-group-id="6598614371-28">]</span><span·class="p"·data-group[·...·truncated·by·diffoscope;·len:·15,·SHA:·3a024785759b400dd75858b6198ae95b2b8878fe90577d910296c4fdccc4b937·...·]-27">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 276 | ····</span><span·class="p"·data-group-id=" | 276 | ····</span><span·class="p"·data-group-id="6598614371-29">{</span><span·class="ss">no</span><span·class="p">,</span><span·class="w">·</span><span·class="s">""</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6598614371-30">[</span><span·class="p"·data-g[·...·truncated·by·diffoscope;·len:·73,·SHA:·3cfd8624ad82d71ea7e6ec5366876e4faaa34ba771754fdd3252e471ac87b039·...·]-29">}</span><span·class="p">;</span><span·class="w"> |
| 277 | </span><span·class="nf">expand_fun</span><span·class="p"·data-group-id=" | 277 | </span><span·class="nf">expand_fun</span><span·class="p"·data-group-id="6598614371-31">(</span><span·class="n">Curr</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6598614371-32">[</span><span·class="n">Cmd</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·[·...·truncated·by·diffoscope;·len:·113,·SHA:·5a87c3382c9abccd036ec65f9c2e351e64d87b792173e9687f5be9d9e769a894·...·]-31">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 278 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">prefix</span><span·class="p"·data-group-id=" | 278 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">prefix</span><span·class="p"·data-group-id="6598614371-33">(</span><span·class="n">Curr</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Cmd</span><span·class="p"·data-group-id="6598614371-33">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
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| 1846 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·lookup(Name,·Key)·->·Objects·|·{error,·Reason} | 1846 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·lookup(Name,·Key)·->·Objects·|·{error,·Reason} |
| 1847 | ················when·Name·::·<a·href="#t:tab_name/0">tab_name</a>(),·Key·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>(),·Objects·::·[<a·href="#t:object/0">object</a>()],·Reason·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>().</pre> | 1847 | ················when·Name·::·<a·href="#t:tab_name/0">tab_name</a>(),·Key·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>(),·Objects·::·[<a·href="#t:object/0">object</a>()],·Reason·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>().</pre> |
| 1848 | ······</div> | 1848 | ······</div> |
| 1849 | <p>Returns·a·list·of·all·objects·with·key·<code·class="inline">Key</code>·stored·in·table·<code·class="inline">Name</code>,·for | 1849 | <p>Returns·a·list·of·all·objects·with·key·<code·class="inline">Key</code>·stored·in·table·<code·class="inline">Name</code>,·for |
| 1850 | example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">2>·</span><span·class="nc">dets</span><span·class="p">:</span><span·class="nf">open_file</span><span·class="p"·data-group-id=" | 1850 | example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">2>·</span><span·class="nc">dets</span><span·class="p">:</span><span·class="nf">open_file</span><span·class="p"·data-group-id="4644025984-1">(</span><span·class="ss">abc</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4644025984-2">[</span><span·class="p"·data-group-id="4644025984-3">{</span><span·class="ss">type</span><span·class="p">,</span><[·...·truncated·by·diffoscope;·len:·197,·SHA:·8c29f60e7f9dd5b3ecbf661d010068353b239778d33bfa74d9e059ded94b2f84·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 1851 | </span><span·class="p"·data-group-id=" | 1851 | </span><span·class="p"·data-group-id="4644025984-4">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="ss">abc</span><span·class="p"·data-group-id="4644025984-4">}</span><span·class="gp·unselectable"> |
| 1852 | 3>·</span><span·class="nc">dets</span><span·class="p">:</span><span·class="nf">insert</span><span·class="p"·data-group-id=" | 1852 | 3>·</span><span·class="nc">dets</span><span·class="p">:</span><span·class="nf">insert</span><span·class="p"·data-group-id="4644025984-5">(</span><span·class="ss">abc</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4644025984-6">{</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">2</span><span·class="p">,</span><span·cl[·...·truncated·by·diffoscope;·len:·111,·SHA:·5d27f6c884984677786f01decc9bb3ff87b036c87698810a11296dcdd0a77956·...·]-5">)</span><span·class="p">.</span><span·class="w"> |
| 1853 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> | 1853 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> |
| 1854 | 4>·</span><span·class="nc">dets</span><span·class="p">:</span><span·class="nf">insert</span><span·class="p"·data-group-id=" | 1854 | 4>·</span><span·class="nc">dets</span><span·class="p">:</span><span·class="nf">insert</span><span·class="p"·data-group-id="4644025984-7">(</span><span·class="ss">abc</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4644025984-8">{</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">3</span><span·class="p">,</span><span·cl[·...·truncated·by·diffoscope;·len:·111,·SHA:·d7dd65156d509d8cfb27ac1a7e295494b52f58f88fa66ac4698d452f2ee69298·...·]-7">)</span><span·class="p">.</span><span·class="w"> |
| 1855 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> | 1855 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> |
| 1856 | 5>·</span><span·class="nc">dets</span><span·class="p">:</span><span·class="nf">lookup</span><span·class="p"·data-group-id=" | 1856 | 5>·</span><span·class="nc">dets</span><span·class="p">:</span><span·class="nf">lookup</span><span·class="p"·data-group-id="4644025984-9">(</span><span·class="ss">abc</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">1</span><span·class="p"·data-group-id="4644025984-9">)</span><span·class="p">.</span><span·class="w"> |
| 1857 | </span><span·class="p"·data-group-id=" | 1857 | </span><span·class="p"·data-group-id="4644025984-10">[</span><span·class="p"·data-group-id="4644025984-11">{</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">2</span><span·class="p">,</span><span·class="mi">3</span><span·class="p"·data-group-id="4644025984-11">}</span><s[·...·truncated·by·diffoscope;·len:·294,·SHA:·e488e941207d6be19c6901f20ec268f290c0b853831d7ad44007e9d7454bb901·...·]-10">]</span></code></pre><p>If·the·table·type·is·<code·class="inline">set</code>,·the·function·returns·either·the·empty·list·or·a·list |
| 1858 | with·one·object,·as·there·cannot·be·more·than·one·object·with·a·given·key.·If | 1858 | with·one·object,·as·there·cannot·be·more·than·one·object·with·a·given·key.·If |
| 1859 | the·table·type·is·<code·class="inline">bag</code>·or·<code·class="inline">duplicate_bag</code>,·the·function·returns·a·list·of | 1859 | the·table·type·is·<code·class="inline">bag</code>·or·<code·class="inline">duplicate_bag</code>,·the·function·returns·a·list·of |
| 1860 | arbitrary·length.</p><p>Notice·that·the·order·of·objects·returned·is·unspecified.·In·particular,·the | 1860 | arbitrary·length.</p><p>Notice·that·the·order·of·objects·returned·is·unspecified.·In·particular,·the |
| 1861 | order·in·which·objects·were·inserted·is·not·reflected.</p> | 1861 | order·in·which·objects·were·inserted·is·not·reflected.</p> |
| 1862 | ··</section> | 1862 | ··</section> |
| 1863 | </section> | 1863 | </section> |
| 1864 | <section·class="detail"·id="match/1"> | 1864 | <section·class="detail"·id="match/1"> |
| Offset 2666, 19 lines modified | Offset 2666, 19 lines modified | ||
| 2666 | by·<code·class="inline">qlc</code>:</p><ul><li>Simple·filters·are·translated·into·equivalent·match·specifications.</li><li>More·complicated·filters·must·be·applied·to·all·objects·returned·by | 2666 | by·<code·class="inline">qlc</code>:</p><ul><li>Simple·filters·are·translated·into·equivalent·match·specifications.</li><li>More·complicated·filters·must·be·applied·to·all·objects·returned·by |
| 2667 | <a·href="#select/3"><code·class="inline">select/3</code></a>·given·a·match·specification·that·matches·all | 2667 | <a·href="#select/3"><code·class="inline">select/3</code></a>·given·a·match·specification·that·matches·all |
| 2668 | objects.</li></ul></li><li><p><code·class="inline">{select,</code>·<a·href="#t:match_spec/0"><code·class="inline">match_spec/0</code></a>·<code·class="inline">}</code>·-·As·for·<code·class="inline">select</code>,·the·table·is·traversed·by | 2668 | objects.</li></ul></li><li><p><code·class="inline">{select,</code>·<a·href="#t:match_spec/0"><code·class="inline">match_spec/0</code></a>·<code·class="inline">}</code>·-·As·for·<code·class="inline">select</code>,·the·table·is·traversed·by |
| 2669 | calling·<a·href="#select/3"><code·class="inline">dets:select/3</code></a>·and·<a·href="#select/1"><code·class="inline">dets:select/1</code></a>.·The·difference·is·that·the·match | 2669 | calling·<a·href="#select/3"><code·class="inline">dets:select/3</code></a>·and·<a·href="#select/1"><code·class="inline">dets:select/1</code></a>.·The·difference·is·that·the·match |
| 2670 | specification·is·specified·explicitly.·This·is·how·to·state·match | 2670 | specification·is·specified·explicitly.·This·is·how·to·state·match |
| 2671 | specifications·that·cannot·easily·be·expressed·within·the·syntax·provided·by | 2671 | specifications·that·cannot·easily·be·expressed·within·the·syntax·provided·by |
| 2672 | <code·class="inline">qlc</code>.</p></li></ul><p>The·following·example·uses·an·explicit·match·specification·to·traverse·the | 2672 | <code·class="inline">qlc</code>.</p></li></ul><p>The·following·example·uses·an·explicit·match·specification·to·traverse·the |
| 2673 | table:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">dets</span><span·class="p">:</span><span·class="nf">open_file</span><span·class="p"·data-group-id=" | 2673 | table:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">dets</span><span·class="p">:</span><span·class="nf">open_file</span><span·class="p"·data-group-id="4259250888-1">(</span><span·class="ss">t</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4259250888-2">[</span><span·class="p"·data-group-id="4259250888-2">]</span><span·class="p"·data-group-id="4259250888-1">)</span><span·class="p">,</span><span·class="w"> |
| 2674 | </span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">dets</span><span·class="p">:</span><span·class="nf">insert</span><span·class="p"·data-group-id=" | 2674 | </span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">dets</span><span·class="p">:</span><span·class="nf">insert</span><span·class="p"·data-group-id="4259250888-3">(</span><span·class="ss">t</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4259250888-4">[</span><span·class="p"·data-group-id="4259250888-5">{</span><span·class="mi">1</span><span·class="p">,</span><span·[·...·truncated·by·diffoscope;·len:·777,·SHA:·9bac80a28d023f00ede9fa9faf255ea46d40e65eec11c17e2c18e8d15f688021·...·]8-3">)</span><span·class="p">,</span><span·class="w"> |
| 2675 | </span><span·class="n">MS</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">fun2ms</span><span·class="p"·data-group-id=" | 2675 | </span><span·class="n">MS</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">fun2ms</span><span·class="p"·data-group-id="4259250888-9">(</span><span·class="nf">fun</span><span·class="p"·data-group-id="4259250888-10">(</span><span·class="p"·data-group-id="4259250888-11">{</span><span·class="n">X</span><span·class="p">,</span><span·class="n">Y</span><span·class="p"·data-group-[·...·truncated·by·diffoscope;·len:·993,·SHA:·a1a6a27fb902d7933bc1076c199554940930040b742e36db149a5adb98eed1cc·...·]8-9">)</span><span·class="p">,</span><span·class="w"> |
| 2676 | </span><span·class="n">QH1</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">dets</span><span·class="p">:</span><span·class="nf">table</span><span·class="p"·data-group-id=" | 2676 | </span><span·class="n">QH1</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">dets</span><span·class="p">:</span><span·class="nf">table</span><span·class="p"·data-group-id="4259250888-15">(</span><span·class="ss">t</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4259250888-16">[</span><span·class="p"·data-group-id="4259250888-17">{</span><span·class="ss">traverse</span><span·class="p">,</s[·...·truncated·by·diffoscope;·len:·2206,·SHA:·da0497531b2e4dcf278c0d5da8a69df206d832d12d953fda2543100e5057fa6b·...·]-1">)</span><span·class="p">.</span></code></pre><p>The·latter·example·is·equivalent·to·the·former,·which·can·be·verified·using |
| 2677 | function·<a·href="qlc.html#info/1"><code·class="inline">qlc:info/1</code></a>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">3>·</span><span·class="nc">qlc</span><span·class="p">:</span><span·class="nf">info</span><span·class="p"·data-group-id=" | 2677 | function·<a·href="qlc.html#info/1"><code·class="inline">qlc:info/1</code></a>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">3>·</span><span·class="nc">qlc</span><span·class="p">:</span><span·class="nf">info</span><span·class="p"·data-group-id="6900334254-1">(</span><span·class="n">QH1</span><span·class="p"·data-group-id="6900334254-1">)</span><span·class="w">·</span><span·class="o">=:=</span><span·class="w">·</span><span·class="nc">qlc</span><span·class="p">:</span><span·class="nf">info</span><s[·...·truncated·by·diffoscope;·len:·118,·SHA:·b11ce8227ba90e7180434de28222ac5917ab25fa75696528df5205582923021c·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 2678 | </span><span·class="ss">true</span></code></pre><p><a·href="qlc.html#info/1"><code·class="inline">qlc:info/1</code></a>·returns·information·about·a·query·handle.·In·this·case·identical | 2678 | </span><span·class="ss">true</span></code></pre><p><a·href="qlc.html#info/1"><code·class="inline">qlc:info/1</code></a>·returns·information·about·a·query·handle.·In·this·case·identical |
| 2679 | information·is·returned·for·the·two·query·handles.</p> | 2679 | information·is·returned·for·the·two·query·handles.</p> |
| 2680 | ··</section> | 2680 | ··</section> |
| 2681 | </section> | 2681 | </section> |
| 2682 | <section·class="detail"·id="to_ets/2"> | 2682 | <section·class="detail"·id="to_ets/2"> |
| 2683 | ··<div·class="detail-header"> | 2683 | ··<div·class="detail-header"> |
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| 2740 | ······················Reason·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>().</pre> | 2740 | ······················Reason·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>().</pre> |
| 2741 | ······</div> | 2741 | ······</div> |
| 2742 | <p>Applies·<code·class="inline">Fun</code>·to·each·object·stored·in·table·<code·class="inline">Name</code>·in·some·unspecified·order. | 2742 | <p>Applies·<code·class="inline">Fun</code>·to·each·object·stored·in·table·<code·class="inline">Name</code>·in·some·unspecified·order. |
| 2743 | Different·actions·are·taken·depending·on·the·return·value·of·<code·class="inline">Fun</code>.·The | 2743 | Different·actions·are·taken·depending·on·the·return·value·of·<code·class="inline">Fun</code>.·The |
| 2744 | following·<code·class="inline">Fun</code>·return·values·are·allowed:</p><ul><li><p><strong><code·class="inline">continue</code></strong>·-·Continue·to·perform·the·traversal.·For·example,·the·following | 2744 | following·<code·class="inline">Fun</code>·return·values·are·allowed:</p><ul><li><p><strong><code·class="inline">continue</code></strong>·-·Continue·to·perform·the·traversal.·For·example,·the·following |
| 2745 | function·can·be·used·to·print·the·contents·of·a·table:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">fun</span><span·class="p"·data-group-id=" | 2745 | function·can·be·used·to·print·the·contents·of·a·table:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">fun</span><span·class="p"·data-group-id="4425549873-1">(</span><span·class="n">X</span><span·class="p"·data-group-id="4425549873-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><[·...·truncated·by·diffoscope;·len:·381,·SHA:·6bda7de8c5f7a3d0208dca27fbe111bfc9f6eb06f344cc8b24689883fb65e8e7·...·]-2">)</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">continue</span><span·class="w">·</span><span·class="k">end</span><span·class="p">.</span></code></pre></li><li><p><strong><code·class="inline">{continue,·Val}</code></strong>·-·Continue·the·traversal·and·accumulate·<code·class="inline">Val</code>.·The |
| 2746 | following·function·is·supplied·to·collect·all·objects·of·a·table·in·a·list:</p><pre><code·class="text">fun(X)·->·{continue,·X}·end.</code></pre></li><li><p><strong><code·class="inline">{done,·Value}</code></strong>·-·Terminate·the·traversal·and·return·<code·class="inline">[Value·|·Acc]</code>.</p></li></ul><p>Any·other·value·<code·class="inline">OtherValue</code>·returned·by·<code·class="inline">Fun</code>·terminates·the·traversal·and·is | 2746 | following·function·is·supplied·to·collect·all·objects·of·a·table·in·a·list:</p><pre><code·class="text">fun(X)·->·{continue,·X}·end.</code></pre></li><li><p><strong><code·class="inline">{done,·Value}</code></strong>·-·Terminate·the·traversal·and·return·<code·class="inline">[Value·|·Acc]</code>.</p></li></ul><p>Any·other·value·<code·class="inline">OtherValue</code>·returned·by·<code·class="inline">Fun</code>·terminates·the·traversal·and·is |
| 2747 | returned·immediately.</p> | 2747 | returned·immediately.</p> |
| 2748 | ··</section> | 2748 | ··</section> |
| 2749 | </section> | 2749 | </section> |
| 2750 | <section·class="detail"·id="update_counter/3"> | 2750 | <section·class="detail"·id="update_counter/3"> |
| 2751 | ··<div·class="detail-header"> | 2751 | ··<div·class="detail-header"> |
| Offset 2809, 15 lines modified | Offset 2809, 15 lines modified | ||
| 2809 | ······<p·class="built-using"> | 2809 | ······<p·class="built-using"> |
| 2810 | ········Built·using | 2810 | ········Built·using |
| 2811 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 2811 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 2812 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 2812 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 2813 | ······</p> | 2813 | ······</p> |
| 2814 | <p>Copyright·©·1996-202 | 2814 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 2815 | ····</footer> | 2815 | ····</footer> |
| 2816 | ··</div> | 2816 | ··</div> |
| 2817 | </main> | 2817 | </main> |
| 2818 | </div> | 2818 | </div> |
| 2819 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 2819 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 2820 | ··<script> | 2820 | ··<script> |
| 2821 | ··let·initialized·=·false; | 2821 | ··let·initialized·=·false; |
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| 134 | do·not·compare·equal·(<code·class="inline">==</code>).</p><h2·id="module-notes"·class="section-heading"> | 134 | do·not·compare·equal·(<code·class="inline">==</code>).</p><h2·id="module-notes"·class="section-heading"> |
| 135 | ··<a·href="#module-notes"·class="hover-link"> | 135 | ··<a·href="#module-notes"·class="hover-link"> |
| 136 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 136 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 137 | ··</a> | 137 | ··</a> |
| 138 | ··<span·class="text">Notes</span> | 138 | ··<span·class="text">Notes</span> |
| 139 | </h2> | 139 | </h2> |
| 140 | <p><a·href=""·id="notes"></a></p><p>Functions·<code·class="inline">append</code>·and·<code·class="inline">append_list</code>·are·included·so·that·keyed·values·can·be | 140 | <p><a·href=""·id="notes"></a></p><p>Functions·<code·class="inline">append</code>·and·<code·class="inline">append_list</code>·are·included·so·that·keyed·values·can·be |
| 141 | stored·in·a·list·<em>accumulator</em>,·for·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="n">D0</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">dict</span><span·class="p">:</span><span·class="nf">new</span><span·class="p"·data-group-id=" | 141 | stored·in·a·list·<em>accumulator</em>,·for·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="n">D0</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">dict</span><span·class="p">:</span><span·class="nf">new</span><span·class="p"·data-group-id="9416931678-1">(</span><span·class="p"·data-group-id="9416931678-1">)</span><span·class="p">,</span><span·class="w"> |
| 142 | ··</span><span·class="n">D1</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">dict</span><span·class="p">:</span><span·class="nf">store</span><span·class="p"·data-group-id=" | 142 | ··</span><span·class="n">D1</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">dict</span><span·class="p">:</span><span·class="nf">store</span><span·class="p"·data-group-id="9416931678-2">(</span><span·class="ss">files</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9416931678-3">[</span><span·class="p"·data-group-id="9416931678-3">]</span><span·class="p">,</span><span·class="w">·</span><sp[·...·truncated·by·diffoscope;·len:·62,·SHA:·51d71542a44f3dbd11fcf237882273f3583bffb3a431ce42b1e37ecb3366334d·...·]8-2">)</span><span·class="p">,</span><span·class="w"> |
| 143 | ··</span><span·class="n">D2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">dict</span><span·class="p">:</span><span·class="nf">append</span><span·class="p"·data-group-id=" | 143 | ··</span><span·class="n">D2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">dict</span><span·class="p">:</span><span·class="nf">append</span><span·class="p"·data-group-id="9416931678-4">(</span><span·class="ss">files</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">f1</span><span·class="p">,</span><span·class="w">·</span><span·class="n">D1</span><span·class="p"·data-group-id="9416931678-4">)</span><span·class="p">,</span><span·class="w"> |
| 144 | ··</span><span·class="n">D3</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">dict</span><span·class="p">:</span><span·class="nf">append</span><span·class="p"·data-group-id=" | 144 | ··</span><span·class="n">D3</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">dict</span><span·class="p">:</span><span·class="nf">append</span><span·class="p"·data-group-id="9416931678-5">(</span><span·class="ss">files</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">f2</span><span·class="p">,</span><span·class="w">·</span><span·class="n">D2</span><span·class="p"·data-group-id="9416931678-5">)</span><span·class="p">,</span><span·class="w"> |
| 145 | ··</span><span·class="n">D4</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">dict</span><span·class="p">:</span><span·class="nf">append</span><span·class="p"·data-group-id=" | 145 | ··</span><span·class="n">D4</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">dict</span><span·class="p">:</span><span·class="nf">append</span><span·class="p"·data-group-id="9416931678-6">(</span><span·class="ss">files</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">f3</span><span·class="p">,</span><span·class="w">·</span><span·class="n">D3</span><span·class="p"·data-group-id="9416931678-6">)</span><span·class="p">,</span><span·class="w"> |
| 146 | ··</span><span·class="nc">dict</span><span·class="p">:</span><span·class="nf">fetch</span><span·class="p"·data-group-id=" | 146 | ··</span><span·class="nc">dict</span><span·class="p">:</span><span·class="nf">fetch</span><span·class="p"·data-group-id="9416931678-7">(</span><span·class="ss">files</span><span·class="p">,</span><span·class="w">·</span><span·class="n">D4</span><span·class="p"·data-group-id="9416931678-7">)</span><span·class="p">.</span><span·class="w"> |
| 147 | </span><span·class="p"·data-group-id=" | 147 | </span><span·class="p"·data-group-id="9416931678-8">[</span><span·class="ss">f1</span><span·class="p">,</span><span·class="ss">f2</span><span·class="p">,</span><span·class="ss">f3</span><span·class="p"·data-group-id="9416931678-8">]</span></code></pre><p>This·saves·the·trouble·of·first·fetching·a·keyed·value,·appending·a·new·value·to |
| 148 | the·list·of·stored·values,·and·storing·the·result.</p><p>Function·<code·class="inline">fetch</code>·is·to·be·used·if·the·key·is·known·to·be·in·the·dictionary, | 148 | the·list·of·stored·values,·and·storing·the·result.</p><p>Function·<code·class="inline">fetch</code>·is·to·be·used·if·the·key·is·known·to·be·in·the·dictionary, |
| 149 | otherwise·function·<code·class="inline">find</code>.</p><h2·id="module-see-also"·class="section-heading"> | 149 | otherwise·function·<code·class="inline">find</code>.</p><h2·id="module-see-also"·class="section-heading"> |
| 150 | ··<a·href="#module-see-also"·class="hover-link"> | 150 | ··<a·href="#module-see-also"·class="hover-link"> |
| 151 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 151 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 152 | ··</a> | 152 | ··</a> |
| 153 | ··<span·class="text">See·Also</span> | 153 | ··<span·class="text">See·Also</span> |
| 154 | </h2> | 154 | </h2> |
| Offset 871, 18 lines modified | Offset 871, 18 lines modified | ||
| 871 | ······</div> | 871 | ······</div> |
| 872 | <p>Merges·two·dictionaries,·<code·class="inline">Dict1</code>·and·<code·class="inline">Dict2</code>,·to·create·a·new·dictionary.·All | 872 | <p>Merges·two·dictionaries,·<code·class="inline">Dict1</code>·and·<code·class="inline">Dict2</code>,·to·create·a·new·dictionary.·All |
| 873 | the·<code·class="inline">Key</code>-<code·class="inline">Value</code>·pairs·from·both·dictionaries·are·included·in·the·new | 873 | the·<code·class="inline">Key</code>-<code·class="inline">Value</code>·pairs·from·both·dictionaries·are·included·in·the·new |
| 874 | dictionary.·If·a·key·occurs·in·both·dictionaries,·<code·class="inline">Fun</code>·is·called·with·the·key | 874 | dictionary.·If·a·key·occurs·in·both·dictionaries,·<code·class="inline">Fun</code>·is·called·with·the·key |
| 875 | and·both·values·to·return·a·new·value.·<code·class="inline">merge</code>·can·be·defined·as·follows,·but·is | 875 | and·both·values·to·return·a·new·value.·<code·class="inline">merge</code>·can·be·defined·as·follows,·but·is |
| 876 | faster:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">merge</span><span·class="p"·data-group-id=" | 876 | faster:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">merge</span><span·class="p"·data-group-id="1764563712-1">(</span><span·class="n">Fun</span><span·class="p">,</span><span·class="w">·</span><span·class="n">D1</span><span·class="p">,</span><span·class="w">·</span><span·class="n">D2</span><span·class="p"·data-group-id="1764563712-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 877 | ····</span><span·class="nf">fold</span><span·class="p"·data-group-id=" | 877 | ····</span><span·class="nf">fold</span><span·class="p"·data-group-id="1764563712-2">(</span><span·class="nf">fun</span><span·class="w">·</span><span·class="p"·data-group-id="1764563712-3">(</span><span·class="n">K</span><span·class="p">,</span><span·class="w">·</span><span·class="n">V1</span><span·class="p">,</span><span·cla[·...·truncated·by·diffoscope;·len:·80,·SHA:·ccf178a2140dfb8253d8a7b1d7168752258a77e94b647092a22a22fba0ad2f12·...·]-3">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 878 | ·················</span><span·class="nf">update</span><span·class="p"·data-group-id=" | 878 | ·················</span><span·class="nf">update</span><span·class="p"·data-group-id="1764563712-4">(</span><span·class="n">K</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">fun</span><span·class="w">·</span><span·class="p"·data-group-id="1764563712-5">(</span><span·class="n">V2</span><span·class="p"·data-group-id="17[·...·truncated·by·diffoscope;·len:·634,·SHA:·c71b9b18e53038c0e32ce902ba4c1bc1692e4ef763028c78639e11e2d7f5d3d7·...·]-4">)</span><span·class="w"> |
| 879 | ·········</span><span·class="k">end</span><span·class="p">,</span><span·class="w">·</span><span·class="n">D2</span><span·class="p">,</span><span·class="w">·</span><span·class="n">D1</span><span·class="p"·data-group-id=" | 879 | ·········</span><span·class="k">end</span><span·class="p">,</span><span·class="w">·</span><span·class="n">D2</span><span·class="p">,</span><span·class="w">·</span><span·class="n">D1</span><span·class="p"·data-group-id="1764563712-2">)</span><span·class="p">.</span></code></pre> |
| 880 | ··</section> | 880 | ··</section> |
| 881 | </section> | 881 | </section> |
| 882 | <section·class="detail"·id="new/0"> | 882 | <section·class="detail"·id="new/0"> |
| 883 | ··<div·class="detail-header"> | 883 | ··<div·class="detail-header"> |
| 884 | ····<a·href="#new/0"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 884 | ····<a·href="#new/0"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 885 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 885 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 1073, 16 lines modified | Offset 1073, 16 lines modified | ||
| 1073 | ····················Fun·::·fun((Value1·::·Value)·->·Value2·::·Value), | 1073 | ····················Fun·::·fun((Value1·::·Value)·->·Value2·::·Value), |
| 1074 | ····················Initial·::·Value.</pre> | 1074 | ····················Initial·::·Value.</pre> |
| 1075 | ······</div> | 1075 | ······</div> |
| 1076 | <p>Updates·a·value·in·a·dictionary·by·calling·<code·class="inline">Fun</code>·on·the·value·to·get·a·new | 1076 | <p>Updates·a·value·in·a·dictionary·by·calling·<code·class="inline">Fun</code>·on·the·value·to·get·a·new |
| 1077 | value.·If·<code·class="inline">Key</code>·is·not·present·in·the·dictionary,·<code·class="inline">Initial</code>·is·stored·as·the | 1077 | value.·If·<code·class="inline">Key</code>·is·not·present·in·the·dictionary,·<code·class="inline">Initial</code>·is·stored·as·the |
| 1078 | first·value.·For·example,·<a·href="#append/3"><code·class="inline">append/3</code></a>·can·be·defined·as:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">append</span><span·class="p"·data-group-id=" | 1078 | first·value.·For·example,·<a·href="#append/3"><code·class="inline">append/3</code></a>·can·be·defined·as:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">append</span><span·class="p"·data-group-id="5958563253-1">(</span><span·class="n">Key</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Val</span><span·class="p">,</span><span·class="w">·</span><span·class="n">D</span><span·class="p"·data-group-id="5958563253-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 1079 | ····</span><span·class="nf">update</span><span·class="p"·data-group-id=" | 1079 | ····</span><span·class="nf">update</span><span·class="p"·data-group-id="5958563253-2">(</span><span·class="n">Key</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">fun</span><span·class="w">·</span><span·class="p"·data-group-id="5958563253-3">(</span><span·class="n">Old</span><span·class="p"·data-group-id=[·...·truncated·by·diffoscope;·len:·673,·SHA:·e1f3079bbfe4cee9c83eab4e04e90391b28c675c87749c852c4f758cae939d75·...·]-2">)</span><span·class="p">.</span></code></pre> |
| 1080 | ··</section> | 1080 | ··</section> |
| 1081 | </section> | 1081 | </section> |
| 1082 | <section·class="detail"·id="update_counter/3"> | 1082 | <section·class="detail"·id="update_counter/3"> |
| 1083 | ··<div·class="detail-header"> | 1083 | ··<div·class="detail-header"> |
| 1084 | ····<a·href="#update_counter/3"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 1084 | ····<a·href="#update_counter/3"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 1085 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 1085 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 1103, 16 lines modified | Offset 1103, 16 lines modified | ||
| 1103 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·update_counter(Key,·Increment,·Dict1)·->·Dict2 | 1103 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·update_counter(Key,·Increment,·Dict1)·->·Dict2 |
| 1104 | ························when·Dict1·::·<a·href="#t:dict/2">dict</a>(Key,·Value),·Dict2·::·<a·href="#t:dict/2">dict</a>(Key,·Value),·Increment·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:number/0">number</a>().</pre> | 1104 | ························when·Dict1·::·<a·href="#t:dict/2">dict</a>(Key,·Value),·Dict2·::·<a·href="#t:dict/2">dict</a>(Key,·Value),·Increment·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:number/0">number</a>().</pre> |
| 1105 | ······</div> | 1105 | ······</div> |
| 1106 | <p>Adds·<code·class="inline">Increment</code>·to·the·value·associated·with·<code·class="inline">Key</code>·and·stores·this·value.·If | 1106 | <p>Adds·<code·class="inline">Increment</code>·to·the·value·associated·with·<code·class="inline">Key</code>·and·stores·this·value.·If |
| 1107 | <code·class="inline">Key</code>·is·not·present·in·the·dictionary,·<code·class="inline">Increment</code>·is·stored·as·the·first | 1107 | <code·class="inline">Key</code>·is·not·present·in·the·dictionary,·<code·class="inline">Increment</code>·is·stored·as·the·first |
| 1108 | value.</p><p>This·can·be·defined·as·follows,·but·is·faster:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">update_counter</span><span·class="p"·data-group-id=" | 1108 | value.</p><p>This·can·be·defined·as·follows,·but·is·faster:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">update_counter</span><span·class="p"·data-group-id="9047063865-1">(</span><span·class="n">Key</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Incr</span><span·class="p">,</span><span·class="w">·</span><span·class="n">D</span><span·class="p"·data-group-id="9047063865-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 1109 | ····</span><span·class="nf">update</span><span·class="p"·data-group-id=" | 1109 | ····</span><span·class="nf">update</span><span·class="p"·data-group-id="9047063865-2">(</span><span·class="n">Key</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">fun</span><span·class="w">·</span><span·class="p"·data-group-id="9047063865-3">(</span><span·class="n">Old</span><span·class="p"·data-group-id=[·...·truncated·by·diffoscope;·len:·462,·SHA:·0d3182a96f2927788d4ababb1d9ad077991afbf23a83efbea5f24987b2e25176·...·]-2">)</span><span·class="p">.</span></code></pre> |
| 1110 | ··</section> | 1110 | ··</section> |
| 1111 | </section> | 1111 | </section> |
| 1112 | ····</div> | 1112 | ····</div> |
| 1113 | ··</section> | 1113 | ··</section> |
| 1114 | ····<footer·class="footer"> | 1114 | ····<footer·class="footer"> |
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| 1133 | ······<p·class="built-using"> | 1133 | ······<p·class="built-using"> |
| 1134 | ········Built·using | 1134 | ········Built·using |
| 1135 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1135 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1136 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1136 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1137 | ······</p> | 1137 | ······</p> |
| 1138 | <p>Copyright·©·1996-202 | 1138 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1139 | ····</footer> | 1139 | ····</footer> |
| 1140 | ··</div> | 1140 | ··</div> |
| 1141 | </main> | 1141 | </main> |
| 1142 | </div> | 1142 | </div> |
| 1143 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1143 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1144 | ··<script> | 1144 | ··<script> |
| 1145 | ··let·initialized·=·false; | 1145 | ··let·initialized·=·false; |
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| 1758 | ······<p·class="built-using"> | 1758 | ······<p·class="built-using"> |
| 1759 | ········Built·using | 1759 | ········Built·using |
| 1760 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1760 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1761 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1761 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1762 | ······</p> | 1762 | ······</p> |
| 1763 | <p>Copyright·©·1996-202 | 1763 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1764 | ····</footer> | 1764 | ····</footer> |
| 1765 | ··</div> | 1765 | ··</div> |
| 1766 | </main> | 1766 | </main> |
| 1767 | </div> | 1767 | </div> |
| 1768 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1768 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1769 | ··<script> | 1769 | ··<script> |
| 1770 | ··let·initialized·=·false; | 1770 | ··let·initialized·=·false; |
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| 1004 | ······<p·class="built-using"> | 1004 | ······<p·class="built-using"> |
| 1005 | ········Built·using | 1005 | ········Built·using |
| 1006 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1006 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1007 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1007 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1008 | ······</p> | 1008 | ······</p> |
| 1009 | <p>Copyright·©·1996-202 | 1009 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1010 | ····</footer> | 1010 | ····</footer> |
| 1011 | ··</div> | 1011 | ··</div> |
| 1012 | </main> | 1012 | </main> |
| 1013 | </div> | 1013 | </div> |
| 1014 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1014 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1015 | ··<script> | 1015 | ··<script> |
| 1016 | ··let·initialized·=·false; | 1016 | ··let·initialized·=·false; |
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| 336 | ······<p·class="built-using"> | 336 | ······<p·class="built-using"> |
| 337 | ········Built·using | 337 | ········Built·using |
| 338 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 338 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 339 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 339 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 340 | ······</p> | 340 | ······</p> |
| 341 | <p>Copyright·©·1996-202 | 341 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 342 | ····</footer> | 342 | ····</footer> |
| 343 | ··</div> | 343 | ··</div> |
| 344 | </main> | 344 | </main> |
| 345 | </div> | 345 | </div> |
| 346 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 346 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 347 | ··<script> | 347 | ··<script> |
| 348 | ··let·initialized·=·false; | 348 | ··let·initialized·=·false; |
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| 328 | ······<p·class="built-using"> | 328 | ······<p·class="built-using"> |
| 329 | ········Built·using | 329 | ········Built·using |
| 330 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 330 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 331 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 331 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 332 | ······</p> | 332 | ······</p> |
| 333 | <p>Copyright·©·1996-202 | 333 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 334 | ····</footer> | 334 | ····</footer> |
| 335 | ··</div> | 335 | ··</div> |
| 336 | </main> | 336 | </main> |
| 337 | </div> | 337 | </div> |
| 338 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 338 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 339 | ··<script> | 339 | ··<script> |
| 340 | ··let·initialized·=·false; | 340 | ··let·initialized·=·false; |
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| 136 | <code·class="inline">Latin-1</code>·and·<code·class="inline">UTF-8</code>,·where·the·case·of·the·characters·can·be·chosen·freely.</p><p><em>Examples:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%%·coding:·utf-8</span></code></pre><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%%·For·this·file·we·have·chosen·encoding·=·Latin-1</span></code></pre><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%%·-*-·coding:·latin-1·-*-</span></code></pre><h2·id="module-error-information"·class="section-heading"> | 136 | <code·class="inline">Latin-1</code>·and·<code·class="inline">UTF-8</code>,·where·the·case·of·the·characters·can·be·chosen·freely.</p><p><em>Examples:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%%·coding:·utf-8</span></code></pre><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%%·For·this·file·we·have·chosen·encoding·=·Latin-1</span></code></pre><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%%·-*-·coding:·latin-1·-*-</span></code></pre><h2·id="module-error-information"·class="section-heading"> |
| 137 | ··<a·href="#module-error-information"·class="hover-link"> | 137 | ··<a·href="#module-error-information"·class="hover-link"> |
| 138 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 138 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 139 | ··</a> | 139 | ··</a> |
| 140 | ··<span·class="text">Error·Information</span> | 140 | ··<span·class="text">Error·Information</span> |
| 141 | </h2> | 141 | </h2> |
| 142 | <p><code·class="inline">ErrorInfo</code>·is·the·standard·<code·class="inline">ErrorInfo</code>·structure·that·is·returned·from·all·I/O | 142 | <p><code·class="inline">ErrorInfo</code>·is·the·standard·<code·class="inline">ErrorInfo</code>·structure·that·is·returned·from·all·I/O |
| 143 | modules.·The·format·is·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 143 | modules.·The·format·is·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="6529921189-1">{</span><span·class="n">ErrorLine</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Module</span><span·class="p">,</span><span·class="w">·</span><span·class="n">ErrorDescriptor</span><span·class="p"·data-group-id="65299211[·...·truncated·by·diffoscope;·len:·369,·SHA:·307ecdc7c27323f5d90d7527247f26f77a643dfb59dde07a0b232f7579a5b8ac·...·]-1">)</span></code></pre><h2·id="module-see-also"·class="section-heading"> |
| 144 | ··<a·href="#module-see-also"·class="hover-link"> | 144 | ··<a·href="#module-see-also"·class="hover-link"> |
| 145 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 145 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 146 | ··</a> | 146 | ··</a> |
| 147 | ··<span·class="text">See·Also</span> | 147 | ··<span·class="text">See·Also</span> |
| 148 | </h2> | 148 | </h2> |
| 149 | <p><a·href="erl_parse.html"><code·class="inline">erl_parse</code></a></p> | 149 | <p><a·href="erl_parse.html"><code·class="inline">erl_parse</code></a></p> |
| 150 | ····</section> | 150 | ····</section> |
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| 1185 | ······<p·class="built-using"> | 1185 | ······<p·class="built-using"> |
| 1186 | ········Built·using | 1186 | ········Built·using |
| 1187 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1187 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1188 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1188 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1189 | ······</p> | 1189 | ······</p> |
| 1190 | <p>Copyright·©·1996-202 | 1190 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1191 | ····</footer> | 1191 | ····</footer> |
| 1192 | ··</div> | 1192 | ··</div> |
| 1193 | </main> | 1193 | </main> |
| 1194 | </div> | 1194 | </div> |
| 1195 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1195 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1196 | ··<script> | 1196 | ··<script> |
| 1197 | ··let·initialized·=·false; | 1197 | ··let·initialized·=·false; |
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| 1251 | ······<p·class="built-using"> | 1251 | ······<p·class="built-using"> |
| 1252 | ········Built·using | 1252 | ········Built·using |
| 1253 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1253 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1254 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1254 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1255 | ······</p> | 1255 | ······</p> |
| 1256 | <p>Copyright·©·1996-202 | 1256 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1257 | ····</footer> | 1257 | ····</footer> |
| 1258 | ··</div> | 1258 | ··</div> |
| 1259 | </main> | 1259 | </main> |
| 1260 | </div> | 1260 | </div> |
| 1261 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1261 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1262 | ··<script> | 1262 | ··<script> |
| 1263 | ··let·initialized·=·false; | 1263 | ··let·initialized·=·false; |
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| 309 | ······<div·class="specs"> | 309 | ······<div·class="specs"> |
| 310 | ··········<pre·translate="no"><span·class="attribute">-type</span>·format_fun()·::·fun((<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>(),·<a·href="#t:column/0">column</a>())·->·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:iolist/0">iolist</a>()).</pre> | 310 | ··········<pre·translate="no"><span·class="attribute">-type</span>·format_fun()·::·fun((<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>(),·<a·href="#t:column/0">column</a>())·->·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:iolist/0">iolist</a>()).</pre> |
| 311 | ······</div> | 311 | ······</div> |
| 312 | <p>A·fun·used·to·format·function·arguments·for·BIF·and·function·calls.·By·default | 312 | <p>A·fun·used·to·format·function·arguments·for·BIF·and·function·calls.·By·default |
| 313 | the·following·fun·will·be·used:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">fun</span><span·class="p"·data-group-id=" | 313 | the·following·fun·will·be·used:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">fun</span><span·class="p"·data-group-id="5898961937-1">(</span><span·class="n">Term</span><span·class="p">,</span><span·class="w">·</span><span·class="n">I</span><span·class="p"·data-group-id="5898961937-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·[·...·truncated·by·diffoscope;·len:·418,·SHA:·efe58049cfca9ac7e9db740e2b226ce71055775bf6b6e4398e4cbe2e011fa2b5·...·]-2">)</span><span·class="w">·</span><span·class="k">end</span></code></pre> |
| 314 | ··</section> | 314 | ··</section> |
| 315 | </section> | 315 | </section> |
| 316 | <section·class="detail"·id="t:format_options/0"> | 316 | <section·class="detail"·id="t:format_options/0"> |
| 317 | ··<div·class="detail-header"> | 317 | ··<div·class="detail-header"> |
| 318 | ····<a·href="#t:format_options/0"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·type"> | 318 | ····<a·href="#t:format_options/0"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·type"> |
| 319 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 319 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 424, 31 lines modified | Offset 424, 31 lines modified | ||
| 424 | <p>This·callback·is·called·when·<a·href="#format_exception/4"><code·class="inline">format_exception/4</code></a>·or·similar·functionality·wants | 424 | <p>This·callback·is·called·when·<a·href="#format_exception/4"><code·class="inline">format_exception/4</code></a>·or·similar·functionality·wants |
| 425 | to·provide·extra·information·about·an·error.·The·<code·class="inline">Module</code>:<code·class="inline">Function</code>·called·is | 425 | to·provide·extra·information·about·an·error.·The·<code·class="inline">Module</code>:<code·class="inline">Function</code>·called·is |
| 426 | the·one·specificed·by·the·<code·class="inline">error_info</code>·map.</p><p>The·function·should·return·a·map·with·additional·information·about·what·have | 426 | the·one·specificed·by·the·<code·class="inline">error_info</code>·map.</p><p>The·function·should·return·a·map·with·additional·information·about·what·have |
| 427 | caused·the·exception.·The·possible·keys·of·the·map·are:</p><ul><li><p><strong><code·class="inline">ArgumentPosition·=·pos_integer()</code></strong>·-·The·position·of·the·argument·that | 427 | caused·the·exception.·The·possible·keys·of·the·map·are:</p><ul><li><p><strong><code·class="inline">ArgumentPosition·=·pos_integer()</code></strong>·-·The·position·of·the·argument·that |
| 428 | caused·the·error·starting·at·1.</p></li><li><p><strong><code·class="inline">general</code></strong>·-·An·error·that·is·not·associated·with·any·argument·caused·the | 428 | caused·the·error·starting·at·1.</p></li><li><p><strong><code·class="inline">general</code></strong>·-·An·error·that·is·not·associated·with·any·argument·caused·the |
| 429 | error.</p></li><li><p><strong><code·class="inline">reason</code></strong>·-·If·the·<code·class="inline">Reason</code>·should·be·printed·differently·than·the·default | 429 | error.</p></li><li><p><strong><code·class="inline">reason</code></strong>·-·If·the·<code·class="inline">Reason</code>·should·be·printed·differently·than·the·default |
| 430 | way.</p></li></ul><p>If·the·text·returned·includes·new-lines,·<a·href="#format_exception/4"><code·class="inline">format_exception/4</code></a>·will·indent·the | 430 | way.</p></li></ul><p>If·the·text·returned·includes·new-lines,·<a·href="#format_exception/4"><code·class="inline">format_exception/4</code></a>·will·indent·the |
| 431 | text·correctly.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 431 | text·correctly.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="2712748472-1">(</span><span·class="ss">my_error_module</span><span·class="p"·data-group-id="2712748472-1">)</span><span·class="p">.</span><span·class="w"> |
| 432 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 432 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="2712748472-2">(</span><span·class="p"·data-group-id="2712748472-3">[</span><span·class="ss">atom_to_string</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">format_error</span><span·clas[·...·truncated·by·diffoscope;·len:·133,·SHA:·19bdf385b43e0d4686cc41d9c73f1cb035774a6df17c91ec3b801fe8437c7de8·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 433 | </span><span·class="nf">atom_to_string</span><span·class="p"·data-group-id=" | 433 | </span><span·class="nf">atom_to_string</span><span·class="p"·data-group-id="2712748472-4">(</span><span·class="n">Arg</span><span·class="p"·data-group-id="2712748472-4">)</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><span·class="nf">is_atom</span><span·class="p"·data-group-id="2712748472-5">(</s[·...·truncated·by·diffoscope;·len:·71,·SHA:·de02a4bd3b58fc1bfb906d5e2d13f3cc0fc26dd409806f19d4b9f1bfd10583ab·...·]-5">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 434 | ··</span><span·class="nf">atom_to_list</span><span·class="p"·data-group-id=" | 434 | ··</span><span·class="nf">atom_to_list</span><span·class="p"·data-group-id="2712748472-6">(</span><span·class="n">Arg</span><span·class="p"·data-group-id="2712748472-6">)</span><span·class="p">;</span><span·class="w"> |
| 435 | </span><span·class="nf">atom_to_string</span><span·class="p"·data-group-id=" | 435 | </span><span·class="nf">atom_to_string</span><span·class="p"·data-group-id="2712748472-7">(</span><span·class="n">Arg</span><span·class="p"·data-group-id="2712748472-7">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 436 | ··</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">error</span><span·class="p"·data-group-id=" | 436 | ··</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">error</span><span·class="p"·data-group-id="2712748472-8">(</span><span·class="ss">badarg</span><span·class="p">,</span><span·class="p"·data-group-id="2712748472-9">[</span><span·class="n">Arg</span><span·class="p"·data-group-id="2712748472-9">]</span><span·class="p">,</span><span·class="w"> |
| 437 | ···············</span><span·class="p"·data-group-id=" | 437 | ···············</span><span·class="p"·data-group-id="2712748472-10">[</span><span·class="p"·data-group-id="2712748472-11">{</span><span·class="ss">error_info</span><span·class="p">,</span><span·class="p"·data-group-id="2712748472-12">#{</span><span·class="w">·</span><span·class="ss">module</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="o">?</span><span·class="n">MODULE</span><span·class="p">,</span><span·class="w"> |
| 438 | ·······························</span><span·class="ss">cause</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id=" | 438 | ·······························</span><span·class="ss">cause</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="2712748472-13">#{</span><span·class="w">·</span><span·class="mi">1</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"should·be·an·atom"</span><span·class="w">·</span><span·class="p"·data-group-id="[·...·truncated·by·diffoscope;·len:·226,·SHA:·85ecdff95184884d896a57372ccaed128454680d688ca9fdf929c2248a478e29·...·]-8">)</span><span·class="p">.</span><span·class="w"> |
| 439 | </span><span·class="nf">format_error</span><span·class="p"·data-group-id=" | 439 | </span><span·class="nf">format_error</span><span·class="p"·data-group-id="2712748472-14">(</span><span·class="n">Reason</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2712748472-15">[</span><span·class="p"·data-group-id="2712748472-16">{</span><span·class="p">_</span><span·class="n">M</span>[·...·truncated·by·diffoscope;·len:·393,·SHA:·c0ce622c4d1deee2ef0a781e4bec12a3a79a33608904a1be692f1579caeb04c2·...·]-14">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 440 | ··</span><span·class="n">ErrorInfo</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">proplists</span><span·class="p">:</span><span·class="nf">get_value</span><span·class="p"·data-group-id=" | 440 | ··</span><span·class="n">ErrorInfo</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">proplists</span><span·class="p">:</span><span·class="nf">get_value</span><span·class="p"·data-group-id="2712748472-17">(</span><span·class="ss">error_info</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Info</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2712748472-18">#{</span><span·class="p"·data-[·...·truncated·by·diffoscope;·len:·74,·SHA:·b63fb4723a7f83cd5f58e19bfa226da1191a4b91b12da9845cbf0eec26b17eec·...·]-17">)</span><span·class="p">,</span><span·class="w"> |
| 441 | ··</span><span·class="n">ErrorMap</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">maps</span><span·class="p">:</span><span·class="nf">get</span><span·class="p"·data-group-id=" | 441 | ··</span><span·class="n">ErrorMap</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">maps</span><span·class="p">:</span><span·class="nf">get</span><span·class="p"·data-group-id="2712748472-19">(</span><span·class="ss">cause</span><span·class="p">,</span><span·class="w">·</span><span·class="n">ErrorInfo</span><span·class="p"·data-group-id="2712748472-19">)</span><span·class="p">,</span><span·class="w"> |
| 442 | ··</span><span·class="n">ErrorMap</span><span·class="p"·data-group-id=" | 442 | ··</span><span·class="n">ErrorMap</span><span·class="p"·data-group-id="2712748472-20">#{</span><span·class="w">·</span><span·class="ss">general</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"optional·general·information"</span><span·class="p">,</span><span·class="w"> |
| 443 | ·············</span><span·class="ss">reason</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="nc">io_lib</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 443 | ·············</span><span·class="ss">reason</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="nc">io_lib</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="2712748472-21">(</span><span·class="s">"</span><span·class="si">~p</span><span·class="s">:·</span><span·class="si">~p</span><span·class="s">"</span><span·class="p">,</span><span·class="p"·data-group-id="2712748472-22">[</span><span·class="o">?</s[·...·truncated·by·diffoscope;·len:·582,·SHA:·0392049fa14c9ead9a438e8074399ac2113586bcf3838825da25548050921b26·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 444 | </span><span·class="p"·data-group-id=" | 444 | </span><span·class="p"·data-group-id="1843645565-2">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="ss">my_error_module</span><span·class="p"·data-group-id="1843645565-2">}</span><span·class="gp·unselectable"> |
| 445 | 2>·</span><span·class="nc">my_error_module</span><span·class="p">:</span><span·class="nf">atom_to_string</span><span·class="p"·data-group-id=" | 445 | 2>·</span><span·class="nc">my_error_module</span><span·class="p">:</span><span·class="nf">atom_to_string</span><span·class="p"·data-group-id="1843645565-3">(</span><span·class="mi">1</span><span·class="p"·data-group-id="1843645565-3">)</span><span·class="p">.</span><span·class="w"> |
| 446 | </span><span·class="gt">**·exception·error:·my_error_module:·badarg | 446 | </span><span·class="gt">**·exception·error:·my_error_module:·badarg |
| 447 | ·····in·function··my_error_module:atom_to_string/1 | 447 | ·····in·function··my_error_module:atom_to_string/1 |
| 448 | ········called·as·my_error_module:atom_to_string(1) | 448 | ········called·as·my_error_module:atom_to_string(1) |
| 449 | ········***·argument·1:·should·be·an·atom | 449 | ········***·argument·1:·should·be·an·atom |
| 450 | ········***·optional·general·information</span></code></pre> | 450 | ········***·optional·general·information</span></code></pre> |
| 451 | ··</section> | 451 | ··</section> |
| 452 | </section> | 452 | </section> |
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| 524 | ······························StackTrace·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:stacktrace/0">erlang:stacktrace</a>(), | 524 | ······························StackTrace·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:stacktrace/0">erlang:stacktrace</a>(), |
| 525 | ······························Options·::·<a·href="#t:format_options/0">format_options</a>().</pre> | 525 | ······························Options·::·<a·href="#t:format_options/0">format_options</a>().</pre> |
| 526 | ······</div> | 526 | ······</div> |
| 527 | <p>Format·the·error·reason·and·stack·back-trace·caught·using·<code·class="inline">try</code>·...·<code·class="inline">catch</code>·in | 527 | <p>Format·the·error·reason·and·stack·back-trace·caught·using·<code·class="inline">try</code>·...·<code·class="inline">catch</code>·in |
| 528 | the·same·style·as·the·shell·formats·them.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="k">try</span><span·class="w"> | 528 | the·same·style·as·the·shell·formats·them.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="k">try</span><span·class="w"> |
| 529 | ····</span><span·class="nf">do_something</span><span·class="p"·data-group-id=" | 529 | ····</span><span·class="nf">do_something</span><span·class="p"·data-group-id="7965056373-1">(</span><span·class="p"·data-group-id="7965056373-1">)</span><span·class="w"> |
| 530 | </span><span·class="k">catch</span><span·class="w"> | 530 | </span><span·class="k">catch</span><span·class="w"> |
| 531 | ····</span><span·class="n">C</span><span·class="p">:</span><span·class="n">R</span><span·class="p">:</span><span·class="n">Stk</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 531 | ····</span><span·class="n">C</span><span·class="p">:</span><span·class="n">R</span><span·class="p">:</span><span·class="n">Stk</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 532 | ········</span><span·class="n">Message</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">erl_error</span><span·class="p">:</span><span·class="nf">format_exception</span><span·class="p"·data-group-id=" | 532 | ········</span><span·class="n">Message</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">erl_error</span><span·class="p">:</span><span·class="nf">format_exception</span><span·class="p"·data-group-id="7965056373-2">(</span><span·class="n">C</span><span·class="p">,</span><span·class="w">·</span><span·class="n">R</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Stk</span><span·class="p"·data-group-id="7965056373-2">)</span><span·class="p">,</span><span·class="w"> |
| 533 | ········</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 533 | ········</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="7965056373-3">(</span><span·class="n">LogFile</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"~ts\n"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="7965056373-4">[</span><span·class="n"[·...·truncated·by·diffoscope;·len:·109,·SHA:·f8bfae74166d0abcb42636a554d5c74f58032ed78adf050c601e69d501b3ec9a·...·]-3">)</span><span·class="w"> |
| 534 | </span><span·class="k">end</span></code></pre><p>If·<code·class="inline">error_info</code>·is·provided·with·the·exception,·<code·class="inline">format_exception</code>·will·use·that | 534 | </span><span·class="k">end</span></code></pre><p>If·<code·class="inline">error_info</code>·is·provided·with·the·exception,·<code·class="inline">format_exception</code>·will·use·that |
| 535 | information·to·provide·additional·information·about·the·exception.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="k">try</span><span·class="w"> | 535 | information·to·provide·additional·information·about·the·exception.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="k">try</span><span·class="w"> |
| 536 | ··</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">raise</span><span·class="p"·data-group-id=" | 536 | ··</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">raise</span><span·class="p"·data-group-id="8675939739-1">(</span><span·class="ss">badarg</span><span·class="p">,</span><span·class="p"·data-group-id="8675939739-2">[</span><span·class="p"·data-group-id="8675939739-2">]</span><span·class="p">,</span><span·class="p"·data-group-id="8675939739-3">[</sp[·...·truncated·by·diffoscope;·len:·368,·SHA:·0edefb4fdf911e482a6a0296f2fb11092ecf2c0f057a6ec8de9730ee71ef5d44·...·]-1">)</span><span·class="w"> |
| 537 | </span><span·class="k">catch</span><span·class="w"> | 537 | </span><span·class="k">catch</span><span·class="w"> |
| 538 | ····</span><span·class="n">C</span><span·class="p">:</span><span·class="n">R</span><span·class="p">:</span><span·class="n">Stk</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 538 | ····</span><span·class="n">C</span><span·class="p">:</span><span·class="n">R</span><span·class="p">:</span><span·class="n">Stk</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 539 | ········</span><span·class="n">Message</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">erl_error</span><span·class="p">:</span><span·class="nf">format_exception</span><span·class="p"·data-group-id=" | 539 | ········</span><span·class="n">Message</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">erl_error</span><span·class="p">:</span><span·class="nf">format_exception</span><span·class="p"·data-group-id="8675939739-6">(</span><span·class="n">C</span><span·class="p">,</span><span·class="w">·</span><span·class="n">R</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Stk</span><span·class="p"·data-group-id="8675939739-6">)</span><span·class="p">,</span><span·class="w"> |
| 540 | ········</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 540 | ········</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="8675939739-7">(</span><span·class="n">LogFile</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"~ts\n"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8675939739-8">[</span><span·class="n"[·...·truncated·by·diffoscope;·len:·109,·SHA:·46203d2c818f868c623502aeb8d271fa5b397c5ea4b09b1e25d0447e67f64d9f·...·]-7">)</span><span·class="w"> |
| 541 | </span><span·class="k">end</span></code></pre><p>See·<a·href="../../../../erts-16.0/doc/html/erlang.html#error/3"><code·class="inline">erlang:error/3</code></a>·for·details·on·how·to·raise·an·exception·with·<code·class="inline">error_info</code> | 541 | </span><span·class="k">end</span></code></pre><p>See·<a·href="../../../../erts-16.0/doc/html/erlang.html#error/3"><code·class="inline">erlang:error/3</code></a>·for·details·on·how·to·raise·an·exception·with·<code·class="inline">error_info</code> |
| 542 | included.</p> | 542 | included.</p> |
| 543 | ··</section> | 543 | ··</section> |
| 544 | </section> | 544 | </section> |
| 545 | ····</div> | 545 | ····</div> |
| 546 | ··</section> | 546 | ··</section> |
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| 566 | ······<p·class="built-using"> | 566 | ······<p·class="built-using"> |
| 567 | ········Built·using | 567 | ········Built·using |
| 568 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 568 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 569 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 569 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 570 | ······</p> | 570 | ······</p> |
| 571 | <p>Copyright·©·1996-202 | 571 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 572 | ····</footer> | 572 | ····</footer> |
| 573 | ··</div> | 573 | ··</div> |
| 574 | </main> | 574 | </main> |
| 575 | </div> | 575 | </div> |
| 576 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 576 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 577 | ··<script> | 577 | ··<script> |
| 578 | ··let·initialized·=·false; | 578 | ··let·initialized·=·false; |
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| 137 | ··<span·class="text">Local·Function·Handler</span> | 137 | ··<span·class="text">Local·Function·Handler</span> |
| 138 | </h2> | 138 | </h2> |
| 139 | <p>During·evaluation·of·a·function,·no·calls·can·be·made·to·local·functions.·An | 139 | <p>During·evaluation·of·a·function,·no·calls·can·be·made·to·local·functions.·An |
| 140 | undefined·function·error·would·be·generated.·However,·the·optional·argument | 140 | undefined·function·error·would·be·generated.·However,·the·optional·argument |
| 141 | <code·class="inline">LocalFunctionHandler</code>·can·be·used·to·define·a·function·that·is·called·when | 141 | <code·class="inline">LocalFunctionHandler</code>·can·be·used·to·define·a·function·that·is·called·when |
| 142 | there·is·a·call·to·a·local·function.·The·argument·can·have·the·following | 142 | there·is·a·call·to·a·local·function.·The·argument·can·have·the·following |
| 143 | formats:</p><ul><li><p><strong><code·class="inline">{value,Func}</code></strong>·-·This·defines·a·local·function·handler·that·is·called | 143 | formats:</p><ul><li><p><strong><code·class="inline">{value,Func}</code></strong>·-·This·defines·a·local·function·handler·that·is·called |
| 144 | with:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Func</span><span·class="p"·data-group-id=" | 144 | with:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Func</span><span·class="p"·data-group-id="4285634464-1">(</span><span·class="n">Name</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Arguments</span><span·class="p"·data-group-id="4285634464-1">)</span></code></pre><p><code·class="inline">Name</code>·is·the·name·of·the·local·function·(an·atom)·and·<code·class="inline">Arguments</code>·is·a·list |
| 145 | of·the·<em>evaluated</em>·arguments.·The·function·handler·returns·the·value·of·the | 145 | of·the·<em>evaluated</em>·arguments.·The·function·handler·returns·the·value·of·the |
| 146 | local·function.·In·this·case,·the·current·bindings·cannot·be·accessed.·To | 146 | local·function.·In·this·case,·the·current·bindings·cannot·be·accessed.·To |
| 147 | signal·an·error,·the·function·handler·calls·<a·href="../../../../erts-16.0/doc/html/erlang.html#exit/1"><code·class="inline">exit/1</code></a>·with·a | 147 | signal·an·error,·the·function·handler·calls·<a·href="../../../../erts-16.0/doc/html/erlang.html#exit/1"><code·class="inline">exit/1</code></a>·with·a |
| 148 | suitable·exit·value.</p></li><li><p><strong><code·class="inline">{eval,Func}</code></strong>·-·This·defines·a·local·function·handler·that·is·called·with:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Func</span><span·class="p"·data-group-id=" | 148 | suitable·exit·value.</p></li><li><p><strong><code·class="inline">{eval,Func}</code></strong>·-·This·defines·a·local·function·handler·that·is·called·with:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Func</span><span·class="p"·data-group-id="6487986686-1">(</span><span·class="n">Name</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Arguments</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Bindings</span><span·class="p"·data-group-id="6487986686-1">)</span></code></pre><p><code·class="inline">Name</code>·is·the·name·of·the·local·function·(an·atom),·<code·class="inline">Arguments</code>·is·a·list·of |
| 149 | the·<em>unevaluated</em>·arguments,·and·<code·class="inline">Bindings</code>·are·the·current·variable·bindings. | 149 | the·<em>unevaluated</em>·arguments,·and·<code·class="inline">Bindings</code>·are·the·current·variable·bindings. |
| 150 | The·function·handler·returns:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 150 | The·function·handler·returns:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="0229850412-1">{</span><span·class="ss">value</span><span·class="p">,</span><span·class="n">Value</span><span·class="p">,</span><span·class="n">NewBindings</span><span·class="p"·data-group-id="0229850412-1">}</span></code></pre><p><code·class="inline">Value</code>·is·the·value·of·the·local·function·and·<code·class="inline">NewBindings</code>·are·the·updated |
| 151 | variable·bindings.·In·this·case,·the·function·handler·must·itself·evaluate·all | 151 | variable·bindings.·In·this·case,·the·function·handler·must·itself·evaluate·all |
| 152 | the·function·arguments·and·manage·the·bindings.·To·signal·an·error,·the | 152 | the·function·arguments·and·manage·the·bindings.·To·signal·an·error,·the |
| 153 | function·handler·calls·<a·href="../../../../erts-16.0/doc/html/erlang.html#exit/1"><code·class="inline">exit/1</code></a>·with·a·suitable·exit·value.</p></li><li><p><strong><code·class="inline">none</code></strong>·-·There·is·no·local·function·handler.</p></li></ul><h2·id="module-non-local-function-handler"·class="section-heading"> | 153 | function·handler·calls·<a·href="../../../../erts-16.0/doc/html/erlang.html#exit/1"><code·class="inline">exit/1</code></a>·with·a·suitable·exit·value.</p></li><li><p><strong><code·class="inline">none</code></strong>·-·There·is·no·local·function·handler.</p></li></ul><h2·id="module-non-local-function-handler"·class="section-heading"> |
| 154 | ··<a·href="#module-non-local-function-handler"·class="hover-link"> | 154 | ··<a·href="#module-non-local-function-handler"·class="hover-link"> |
| 155 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 155 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 156 | ··</a> | 156 | ··</a> |
| 157 | ··<span·class="text">Non-Local·Function·Handler</span> | 157 | ··<span·class="text">Non-Local·Function·Handler</span> |
| 158 | </h2> | 158 | </h2> |
| 159 | <p>The·optional·argument·<code·class="inline">NonLocalFunctionHandler</code>·can·be·used·to·define·a·function | 159 | <p>The·optional·argument·<code·class="inline">NonLocalFunctionHandler</code>·can·be·used·to·define·a·function |
| 160 | that·is·called·in·the·following·cases:</p><ul><li>A·functional·object·(fun)·is·called.</li><li>A·built-in·function·is·called.</li><li>A·function·is·called·using·the·<code·class="inline">M:F</code>·syntax,·where·<code·class="inline">M</code>·and·<code·class="inline">F</code>·are·atoms·or | 160 | that·is·called·in·the·following·cases:</p><ul><li>A·functional·object·(fun)·is·called.</li><li>A·built-in·function·is·called.</li><li>A·function·is·called·using·the·<code·class="inline">M:F</code>·syntax,·where·<code·class="inline">M</code>·and·<code·class="inline">F</code>·are·atoms·or |
| 161 | expressions.</li><li>An·operator·<code·class="inline">Op/A</code>·is·called·(this·is·handled·as·a·call·to·function | 161 | expressions.</li><li>An·operator·<code·class="inline">Op/A</code>·is·called·(this·is·handled·as·a·call·to·function |
| 162 | <code·class="inline">erlang:Op/A</code>).</li></ul><p>Exceptions·are·calls·to·<code·class="inline">erlang:apply/2,3</code>;·neither·of·the·function·handlers·are | 162 | <code·class="inline">erlang:Op/A</code>).</li></ul><p>Exceptions·are·calls·to·<code·class="inline">erlang:apply/2,3</code>;·neither·of·the·function·handlers·are |
| 163 | called·for·such·calls.·The·argument·can·have·the·following·formats:</p><ul><li><p><strong><code·class="inline">{value,Func}</code></strong>·-·This·defines·a·non-local·function·handler.·The·function | 163 | called·for·such·calls.·The·argument·can·have·the·following·formats:</p><ul><li><p><strong><code·class="inline">{value,Func}</code></strong>·-·This·defines·a·non-local·function·handler.·The·function |
| 164 | may·be·called·with·two·arguments:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Func</span><span·class="p"·data-group-id=" | 164 | may·be·called·with·two·arguments:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Func</span><span·class="p"·data-group-id="8782841784-1">(</span><span·class="n">FuncSpec</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Arguments</span><span·class="p"·data-group-id="8782841784-1">)</span></code></pre><p>or·three·arguments:</p><pre><code·class="makeup·erlang[·...·truncated·by·diffoscope;·len:·324,·SHA:·0ea75767dc0cde106ef284a0571bec8fa50a42914771aa50d5f9f3fc82a445bd·...·]-1">)</span></code></pre><p><code·class="inline">Anno</code>·is·the·<a·href="erl_anno.html#t:anno/0"><code·class="inline">erl_anno:anno()</code></a>·of·the·node,·<code·class="inline">FuncSpec</code> |
| 165 | is·the·name·of·the·function·of·the·form·<code·class="inline">{Module,Function}</code>·or·a·fun,·and | 165 | is·the·name·of·the·function·of·the·form·<code·class="inline">{Module,Function}</code>·or·a·fun,·and |
| 166 | <code·class="inline">Arguments</code>·is·a·list·of·the·<em>evaluated</em>·arguments.·The·function·handler | 166 | <code·class="inline">Arguments</code>·is·a·list·of·the·<em>evaluated</em>·arguments.·The·function·handler |
| 167 | returns·the·value·of·the·function.·To·signal·an·error,·the·function·handler | 167 | returns·the·value·of·the·function.·To·signal·an·error,·the·function·handler |
| 168 | calls·<a·href="../../../../erts-16.0/doc/html/erlang.html#exit/1"><code·class="inline">exit/1</code></a>·with·a·suitable·exit·value.</p></li><li><p><strong><code·class="inline">none</code></strong>·-·There·is·no·non-local·function·handler.</p></li></ul><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>For·calls·such·as·<code·class="inline">erlang:apply(Fun,·Args)</code>·or | 168 | calls·<a·href="../../../../erts-16.0/doc/html/erlang.html#exit/1"><code·class="inline">exit/1</code></a>·with·a·suitable·exit·value.</p></li><li><p><strong><code·class="inline">none</code></strong>·-·There·is·no·non-local·function·handler.</p></li></ul><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>For·calls·such·as·<code·class="inline">erlang:apply(Fun,·Args)</code>·or |
| 169 | <code·class="inline">erlang:apply(Module,·Function,·Args)</code>,·the·call·of·the·non-local·function | 169 | <code·class="inline">erlang:apply(Module,·Function,·Args)</code>,·the·call·of·the·non-local·function |
| 170 | handler·corresponding·to·the·call·to·<code·class="inline">erlang:apply/2,3</code>·itself | 170 | handler·corresponding·to·the·call·to·<code·class="inline">erlang:apply/2,3</code>·itself |
| 171 | (<code·class="inline">Func({erlang,·apply},·[Fun,·Args])</code>·or | 171 | (<code·class="inline">Func({erlang,·apply},·[Fun,·Args])</code>·or |
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| 1365 | ······<p·class="built-using"> | 1365 | ······<p·class="built-using"> |
| 1366 | ········Built·using | 1366 | ········Built·using |
| 1367 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1367 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1368 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1368 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1369 | ······</p> | 1369 | ······</p> |
| 1370 | <p>Copyright·©·1996-202 | 1370 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1371 | ····</footer> | 1371 | ····</footer> |
| 1372 | ··</div> | 1372 | ··</div> |
| 1373 | </main> | 1373 | </main> |
| 1374 | </div> | 1374 | </div> |
| 1375 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1375 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1376 | ··<script> | 1376 | ··<script> |
| 1377 | ··let·initialized·=·false; | 1377 | ··let·initialized·=·false; |
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| 230 | ······<p·class="built-using"> | 230 | ······<p·class="built-using"> |
| 231 | ········Built·using | 231 | ········Built·using |
| 232 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 232 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 233 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 233 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 234 | ······</p> | 234 | ······</p> |
| 235 | <p>Copyright·©·1996-202 | 235 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 236 | ····</footer> | 236 | ····</footer> |
| 237 | ··</div> | 237 | ··</div> |
| 238 | </main> | 238 | </main> |
| 239 | </div> | 239 | </div> |
| 240 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 240 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 241 | ··<script> | 241 | ··<script> |
| 242 | ··let·initialized·=·false; | 242 | ··let·initialized·=·false; |
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| 570 | ······<p·class="built-using"> | 570 | ······<p·class="built-using"> |
| 571 | ········Built·using | 571 | ········Built·using |
| 572 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 572 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 573 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 573 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 574 | ······</p> | 574 | ······</p> |
| 575 | <p>Copyright·©·1996-202 | 575 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 576 | ····</footer> | 576 | ····</footer> |
| 577 | ··</div> | 577 | ··</div> |
| 578 | </main> | 578 | </main> |
| 579 | </div> | 579 | </div> |
| 580 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 580 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 581 | ··<script> | 581 | ··<script> |
| 582 | ··let·initialized·=·false; | 582 | ··let·initialized·=·false; |
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| 283 | ······<p·class="built-using"> | 283 | ······<p·class="built-using"> |
| 284 | ········Built·using | 284 | ········Built·using |
| 285 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 285 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 286 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 286 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 287 | ······</p> | 287 | ······</p> |
| 288 | <p>Copyright·©·1996-202 | 288 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 289 | ····</footer> | 289 | ····</footer> |
| 290 | ··</div> | 290 | ··</div> |
| 291 | </main> | 291 | </main> |
| 292 | </div> | 292 | </div> |
| 293 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 293 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 294 | ··<script> | 294 | ··<script> |
| 295 | ··let·initialized·=·false; | 295 | ··let·initialized·=·false; |
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| 556 | ······<p·class="built-using"> | 556 | ······<p·class="built-using"> |
| 557 | ········Built·using | 557 | ········Built·using |
| 558 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 558 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 559 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 559 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 560 | ······</p> | 560 | ······</p> |
| 561 | <p>Copyright·©·1996-202 | 561 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 562 | ····</footer> | 562 | ····</footer> |
| 563 | ··</div> | 563 | ··</div> |
| 564 | </main> | 564 | </main> |
| 565 | </div> | 565 | </div> |
| 566 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 566 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 567 | ··<script> | 567 | ··<script> |
| 568 | ··let·initialized·=·false; | 568 | ··let·initialized·=·false; |
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| 135 | your·own·Erlang·compiler.</p><h2·id="module-error-information"·class="section-heading"> | 135 | your·own·Erlang·compiler.</p><h2·id="module-error-information"·class="section-heading"> |
| 136 | ··<a·href="#module-error-information"·class="hover-link"> | 136 | ··<a·href="#module-error-information"·class="hover-link"> |
| 137 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 137 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 138 | ··</a> | 138 | ··</a> |
| 139 | ··<span·class="text">Error·Information</span> | 139 | ··<span·class="text">Error·Information</span> |
| 140 | </h2> | 140 | </h2> |
| 141 | <p><code·class="inline">ErrorInfo</code>·is·the·standard·<code·class="inline">ErrorInfo</code>·structure·that·is·returned·from·all·I/O | 141 | <p><code·class="inline">ErrorInfo</code>·is·the·standard·<code·class="inline">ErrorInfo</code>·structure·that·is·returned·from·all·I/O |
| 142 | modules.·The·format·is·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 142 | modules.·The·format·is·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="5208657555-1">{</span><span·class="n">ErrorLine</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Module</span><span·class="p">,</span><span·class="w">·</span><span·class="n">ErrorDescriptor</span><span·class="p"·data-group-id="52086575[·...·truncated·by·diffoscope;·len:·369,·SHA:·f880140a0ceefe454236698f2b1866883583652bfb342dc17d8a15e68edd0581·...·]-1">)</span></code></pre><h2·id="module-see-also"·class="section-heading"> |
| 143 | ··<a·href="#module-see-also"·class="hover-link"> | 143 | ··<a·href="#module-see-also"·class="hover-link"> |
| 144 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 144 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 145 | ··</a> | 145 | ··</a> |
| 146 | ··<span·class="text">See·Also</span> | 146 | ··<span·class="text">See·Also</span> |
| 147 | </h2> | 147 | </h2> |
| 148 | <p><a·href="epp.html"><code·class="inline">epp</code></a>,·<a·href="erl_parse.html"><code·class="inline">erl_parse</code></a></p> | 148 | <p><a·href="epp.html"><code·class="inline">epp</code></a>,·<a·href="erl_parse.html"><code·class="inline">erl_parse</code></a></p> |
| 149 | ····</section> | 149 | ····</section> |
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| 573 | ······<p·class="built-using"> | 573 | ······<p·class="built-using"> |
| 574 | ········Built·using | 574 | ········Built·using |
| 575 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 575 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 576 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 576 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 577 | ······</p> | 577 | ······</p> |
| 578 | <p>Copyright·©·1996-202 | 578 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 579 | ····</footer> | 579 | ····</footer> |
| 580 | ··</div> | 580 | ··</div> |
| 581 | </main> | 581 | </main> |
| 582 | </div> | 582 | </div> |
| 583 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 583 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 584 | ··<script> | 584 | ··<script> |
| 585 | ··let·initialized·=·false; | 585 | ··let·initialized·=·false; |
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| 134 | (see·the·<a·href="erl_scan.html"><code·class="inline">erl_scan</code></a>)·module.</p><h2·id="module-error-information"·class="section-heading"> | 134 | (see·the·<a·href="erl_scan.html"><code·class="inline">erl_scan</code></a>)·module.</p><h2·id="module-error-information"·class="section-heading"> |
| 135 | ··<a·href="#module-error-information"·class="hover-link"> | 135 | ··<a·href="#module-error-information"·class="hover-link"> |
| 136 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 136 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 137 | ··</a> | 137 | ··</a> |
| 138 | ··<span·class="text">Error·Information</span> | 138 | ··<span·class="text">Error·Information</span> |
| 139 | </h2> | 139 | </h2> |
| 140 | <p>ErrorInfo·is·the·standard·ErrorInfo·structure·that·is·returned·from·all·I/O·modules. | 140 | <p>ErrorInfo·is·the·standard·ErrorInfo·structure·that·is·returned·from·all·I/O·modules. |
| 141 | The·format·is·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 141 | The·format·is·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="1768966774-1">{</span><span·class="n">ErrorLine</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Module</span><span·class="p">,</span><span·class="w">·</span><span·class="n">ErrorDescriptor</span><span·class="p"·data-group-id="17689667[·...·truncated·by·diffoscope;·len:·369,·SHA:·1c215ed3ae3baa64b70714757a2f2dd6a97ae30f05c4eab93d2e8ffb8b195493·...·]-1">)</span></code></pre><h2·id="module-see-also"·class="section-heading"> |
| 142 | ··<a·href="#module-see-also"·class="hover-link"> | 142 | ··<a·href="#module-see-also"·class="hover-link"> |
| 143 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 143 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 144 | ··</a> | 144 | ··</a> |
| 145 | ··<span·class="text">See·Also</span> | 145 | ··<span·class="text">See·Also</span> |
| 146 | </h2> | 146 | </h2> |
| 147 | <p><a·href="erl_anno.html"><code·class="inline">erl_anno</code></a>,·<a·href="erl_scan.html"><code·class="inline">erl_scan</code></a>,·<a·href="io.html"><code·class="inline">io</code></a>,·section·<a·href="../../../../erts-16.0/doc/html/absform.html">The·Abstract·Format</a> | 147 | <p><a·href="erl_anno.html"><code·class="inline">erl_anno</code></a>,·<a·href="erl_scan.html"><code·class="inline">erl_scan</code></a>,·<a·href="io.html"><code·class="inline">io</code></a>,·section·<a·href="../../../../erts-16.0/doc/html/absform.html">The·Abstract·Format</a> |
| 148 | in·the·ERTS·User's·Guide.</p> | 148 | in·the·ERTS·User's·Guide.</p> |
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| 5666 | ······<p·class="built-using"> | 5666 | ······<p·class="built-using"> |
| 5667 | ········Built·using | 5667 | ········Built·using |
| 5668 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 5668 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 5669 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 5669 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 5670 | ······</p> | 5670 | ······</p> |
| 5671 | <p>Copyright·©·1996-202 | 5671 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 5672 | ····</footer> | 5672 | ····</footer> |
| 5673 | ··</div> | 5673 | ··</div> |
| 5674 | </main> | 5674 | </main> |
| 5675 | </div> | 5675 | </div> |
| 5676 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 5676 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 5677 | ··<script> | 5677 | ··<script> |
| 5678 | ··let·initialized·=·false; | 5678 | ··let·initialized·=·false; |
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| 963 | ······<p·class="built-using"> | 963 | ······<p·class="built-using"> |
| 964 | ········Built·using | 964 | ········Built·using |
| 965 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 965 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 966 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 966 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 967 | ······</p> | 967 | ······</p> |
| 968 | <p>Copyright·©·1996-202 | 968 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 969 | ····</footer> | 969 | ····</footer> |
| 970 | ··</div> | 970 | ··</div> |
| 971 | </main> | 971 | </main> |
| 972 | </div> | 972 | </div> |
| 973 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 973 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 974 | ··<script> | 974 | ··<script> |
| 975 | ··let·initialized·=·false; | 975 | ··let·initialized·=·false; |
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| 132 | tokens.</p><h2·id="module-error-information"·class="section-heading"> | 132 | tokens.</p><h2·id="module-error-information"·class="section-heading"> |
| 133 | ··<a·href="#module-error-information"·class="hover-link"> | 133 | ··<a·href="#module-error-information"·class="hover-link"> |
| 134 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 134 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 135 | ··</a> | 135 | ··</a> |
| 136 | ··<span·class="text">Error·Information</span> | 136 | ··<span·class="text">Error·Information</span> |
| 137 | </h2> | 137 | </h2> |
| 138 | <p><code·class="inline">ErrorInfo</code>·is·the·standard·<code·class="inline">ErrorInfo</code>·structure·that·is·returned·from·all·I/O | 138 | <p><code·class="inline">ErrorInfo</code>·is·the·standard·<code·class="inline">ErrorInfo</code>·structure·that·is·returned·from·all·I/O |
| 139 | modules.·The·format·is·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="7 | 139 | modules.·The·format·is·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="7923653528-1">{</span><span·class="n">ErrorLocation</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Module</span><span·class="p">,</span><span·class="w">·</span><span·class="n">ErrorDescriptor</span><span·class="p"·data-group-id="79236[·...·truncated·by·diffoscope;·len:·371,·SHA:·df8307496309e056d34dc7ca49e3c0a99dcd99979294b8a98191968d58608b7f·...·]5-1">)</span></code></pre><h2·id="module-notes"·class="section-heading"> |
| 140 | ··<a·href="#module-notes"·class="hover-link"> | 140 | ··<a·href="#module-notes"·class="hover-link"> |
| 141 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 141 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 142 | ··</a> | 142 | ··</a> |
| 143 | ··<span·class="text">Notes</span> | 143 | ··<span·class="text">Notes</span> |
| 144 | </h2> | 144 | </h2> |
| 145 | <p>The·continuation·of·the·first·call·to·the·re-entrant·input·functions·must·be | 145 | <p>The·continuation·of·the·first·call·to·the·re-entrant·input·functions·must·be |
| 146 | <code·class="inline">[]</code>.·For·a·complete·description·of·how·the·re-entrant·input·scheme·works,·see | 146 | <code·class="inline">[]</code>.·For·a·complete·description·of·how·the·re-entrant·input·scheme·works,·see |
| Offset 1287, 15 lines modified | Offset 1287, 15 lines modified | ||
| 1287 | ······<p·class="built-using"> | 1287 | ······<p·class="built-using"> |
| 1288 | ········Built·using | 1288 | ········Built·using |
| 1289 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1289 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1290 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1290 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1291 | ······</p> | 1291 | ······</p> |
| 1292 | <p>Copyright·©·1996-202 | 1292 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1293 | ····</footer> | 1293 | ····</footer> |
| 1294 | ··</div> | 1294 | ··</div> |
| 1295 | </main> | 1295 | </main> |
| 1296 | </div> | 1296 | </div> |
| 1297 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1297 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1298 | ··<script> | 1298 | ··<script> |
| 1299 | ··let·initialized·=·false; | 1299 | ··let·initialized·=·false; |
| Offset 1239, 22 lines modified | Offset 1239, 22 lines modified | ||
| 1239 | storage·handling·function.</p><p>Parameter·<code·class="inline">UserData</code>·is·typically·the·result·of·opening·a·low-level·structure | 1239 | storage·handling·function.</p><p>Parameter·<code·class="inline">UserData</code>·is·typically·the·result·of·opening·a·low-level·structure |
| 1240 | like·a·file·descriptor·or·an·SFTP·channel·id.·The·different·<code·class="inline">Fun</code>·clauses | 1240 | like·a·file·descriptor·or·an·SFTP·channel·id.·The·different·<code·class="inline">Fun</code>·clauses |
| 1241 | operate·on·that·very·term.</p><p>The·following·are·the·fun·clauses·parameter·lists:</p><ul><li><p><strong><code·class="inline">(write,·{UserData,DataToWrite})</code></strong>·-·Writes·term·<code·class="inline">DataToWrite</code>·using | 1241 | operate·on·that·very·term.</p><p>The·following·are·the·fun·clauses·parameter·lists:</p><ul><li><p><strong><code·class="inline">(write,·{UserData,DataToWrite})</code></strong>·-·Writes·term·<code·class="inline">DataToWrite</code>·using |
| 1242 | <code·class="inline">UserData</code>.</p></li><li><p><strong><code·class="inline">(close,·UserData)</code></strong>·-·Closes·the·access.</p></li><li><p><strong><code·class="inline">(read2,·{UserData,Size})</code></strong>·-·Reads·using·<code·class="inline">UserData</code>·but·only·<code·class="inline">Size</code>·bytes. | 1242 | <code·class="inline">UserData</code>.</p></li><li><p><strong><code·class="inline">(close,·UserData)</code></strong>·-·Closes·the·access.</p></li><li><p><strong><code·class="inline">(read2,·{UserData,Size})</code></strong>·-·Reads·using·<code·class="inline">UserData</code>·but·only·<code·class="inline">Size</code>·bytes. |
| 1243 | Notice·that·there·is·only·an·arity-2·read·function,·not·an·arity-1·function.</p></li><li><p><strong><code·class="inline">(position,{UserData,Position})</code></strong>·-·Sets·the·position·of·<code·class="inline">UserData</code>·as | 1243 | Notice·that·there·is·only·an·arity-2·read·function,·not·an·arity-1·function.</p></li><li><p><strong><code·class="inline">(position,{UserData,Position})</code></strong>·-·Sets·the·position·of·<code·class="inline">UserData</code>·as |
| 1244 | defined·for·files·in·<a·href="../../../../lib/kernel-10.3/doc/html/file.html#position/2"><code·class="inline">file:position/2</code></a></p></li></ul><p><em>Example:</em></p><p>The·following·is·a·complete·<code·class="inline">Fun</code>·parameter·for·reading·and·writing·on·files | 1244 | defined·for·files·in·<a·href="../../../../lib/kernel-10.3/doc/html/file.html#position/2"><code·class="inline">file:position/2</code></a></p></li></ul><p><em>Example:</em></p><p>The·following·is·a·complete·<code·class="inline">Fun</code>·parameter·for·reading·and·writing·on·files |
| 1245 | using·the·<a·href="../../../../lib/kernel-10.3/doc/html/file.html"><code·class="inline">file</code></a>·module:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">ExampleFun</span><span·class="w">·</span><span·class="o">=</span><span·class="w"> | 1245 | using·the·<a·href="../../../../lib/kernel-10.3/doc/html/file.html"><code·class="inline">file</code></a>·module:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">ExampleFun</span><span·class="w">·</span><span·class="o">=</span><span·class="w"> |
| 1246 | ···</span><span·class="nf">fun</span><span·class="p"·data-group-id=" | 1246 | ···</span><span·class="nf">fun</span><span·class="p"·data-group-id="3574561194-1">(</span><span·class="ss">write</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3574561194-2">{</span><span·class="n">Fd</span><span·class="p">,</span><span·class="n">Data</span><span·class="p"·data-group-i[·...·truncated·by·diffoscope;·len:·430,·SHA:·e8a322c5fae06ad16bb27bd860c38d9909f3bf4446c929fef6438fccc00dc53c·...·]-3">)</span><span·class="p">;</span><span·class="w"> |
| 1247 | ······</span><span·class="p"·data-group-id=" | 1247 | ······</span><span·class="p"·data-group-id="3574561194-4">(</span><span·class="ss">position</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3574561194-5">{</span><span·class="n">Fd</span><span·class="p">,</span><span·class="n">Pos</span><span·class="p"·data-group[·...·truncated·by·diffoscope;·len:·433,·SHA:·7a66ae14f75f2f1e247abbfe4648e474970faf3169791ff2158fc45141b67552·...·]-6">)</span><span·class="p">;</span><span·class="w"> |
| 1248 | ······</span><span·class="p"·data-group-id=" | 1248 | ······</span><span·class="p"·data-group-id="3574561194-7">(</span><span·class="ss">read2</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3574561194-8">{</span><span·class="n">Fd</span><span·class="p">,</span><span·class="n">Size</span><span·class="p"·data-group-i[·...·truncated·by·diffoscope;·len:·428,·SHA:·36b50c5f6841e0bde1d3e32ce28b69466756e01eb70c3640edd2b7a89fbf3287·...·]-9">)</span><span·class="p">;</span><span·class="w"> |
| 1249 | ······</span><span·class="p"·data-group-id=" | 1249 | ······</span><span·class="p"·data-group-id="3574561194-10">(</span><span·class="ss">close</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Fd</span><span·class="p"·data-group-id="3574561194-10">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><[·...·truncated·by·diffoscope;·len:·200,·SHA:·1ecba478d6d2edb4fea2c51cc522792e9348b70788dc477208190ab38650b6ed·...·]-11">)</span><span·class="w"> |
| 1250 | ···</span><span·class="k">end</span></code></pre><p>Here·<code·class="inline">Fd</code>·was·specified·to·function·<a·href="#init/3"><code·class="inline">init/3</code></a>·as:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 1250 | ···</span><span·class="k">end</span></code></pre><p>Here·<code·class="inline">Fd</code>·was·specified·to·function·<a·href="#init/3"><code·class="inline">init/3</code></a>·as:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="2458991868-1">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="n">Fd</span><span·class="p"·data-group-id="2458991868-1">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">file</span><span·[·...·truncated·by·diffoscope;·len:·287,·SHA:·d96f0643b045f81b23e1ca61c4b5b8cadae808b1dbc85aad3b058b13f4544c54·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 1251 | </span><span·class="p"·data-group-id=" | 1251 | </span><span·class="p"·data-group-id="2458991868-3">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="n">TarDesc</span><span·class="p"·data-group-id="2458991868-3">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">erl_tar</spa[·...·truncated·by·diffoscope;·len:·974,·SHA:·cd6ed081bc5f4fa62d645fd29f4cc9e85ccb076931d359d1b75bff34b338ece7·...·]-1">)</span><span·class="p">,</span><span·class="w"> |
| 1252 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p">,</span><span·class="w"> | 1252 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p">,</span><span·class="w"> |
| 1253 | </span><span·class="nc">erl_tar</span><span·class="p">:</span><span·class="nf">close</span><span·class="p"·data-group-id=" | 1253 | </span><span·class="nc">erl_tar</span><span·class="p">:</span><span·class="nf">close</span><span·class="p"·data-group-id="1677977299-2">(</span><span·class="n">TarDesc</span><span·class="p"·data-group-id="1677977299-2">)</span></code></pre><p>When·the·<code·class="inline">erl_tar</code>·core·wants·to,·for·example,·write·a·piece·of·<code·class="inline">Data</code>,·it·would |
| 1254 | call·<code·class="inline">ExampleFun(write,·{UserData,Data})</code>.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>This·example·with·the·<code·class="inline">file</code>·module·operations·is·not·necessary·to·use | 1254 | call·<code·class="inline">ExampleFun(write,·{UserData,Data})</code>.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>This·example·with·the·<code·class="inline">file</code>·module·operations·is·not·necessary·to·use |
| 1255 | directly,·as·that·is·what·function·<a·href="#open/2"><code·class="inline">open/2</code></a>·in·principle·does.</p></section><section·role="note"·class="admonition·warning"><h4·class="admonition-title·warning">Warning</h4><p>The·<code·class="inline">TarDescriptor</code>·term·is·not·a·file·descriptor.·You·are·advised·not·to·rely | 1255 | directly,·as·that·is·what·function·<a·href="#open/2"><code·class="inline">open/2</code></a>·in·principle·does.</p></section><section·role="note"·class="admonition·warning"><h4·class="admonition-title·warning">Warning</h4><p>The·<code·class="inline">TarDescriptor</code>·term·is·not·a·file·descriptor.·You·are·advised·not·to·rely |
| 1256 | on·the·specific·contents·of·this·term,·as·it·can·change·in·future·Erlang/OTP | 1256 | on·the·specific·contents·of·this·term,·as·it·can·change·in·future·Erlang/OTP |
| 1257 | releases·when·more·features·are·added·to·this·module.</p></section> | 1257 | releases·when·more·features·are·added·to·this·module.</p></section> |
| 1258 | ··</section> | 1258 | ··</section> |
| 1259 | </section> | 1259 | </section> |
| 1260 | <section·class="detail"·id="open/2"> | 1260 | <section·class="detail"·id="open/2"> |
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| 1425 | ······<p·class="built-using"> | 1425 | ······<p·class="built-using"> |
| 1426 | ········Built·using | 1426 | ········Built·using |
| 1427 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1427 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1428 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1428 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1429 | ······</p> | 1429 | ······</p> |
| 1430 | <p>Copyright·©·1996-202 | 1430 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1431 | ····</footer> | 1431 | ····</footer> |
| 1432 | ··</div> | 1432 | ··</div> |
| 1433 | </main> | 1433 | </main> |
| 1434 | </div> | 1434 | </div> |
| 1435 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1435 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1436 | ··<script> | 1436 | ··<script> |
| 1437 | ··let·initialized·=·false; | 1437 | ··let·initialized·=·false; |
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| 502 | <code·class="inline">shebang</code>·defaults·to·<code·class="inline">"/usr/bin/env·escript"</code>.·The·<code·class="inline">comment</code>·defaults·to | 502 | <code·class="inline">shebang</code>·defaults·to·<code·class="inline">"/usr/bin/env·escript"</code>.·The·<code·class="inline">comment</code>·defaults·to |
| 503 | <code·class="inline">"This·is·an·-*-·erlang·-*-·file"</code>.·The·created·escript·can·either·be·returned | 503 | <code·class="inline">"This·is·an·-*-·erlang·-*-·file"</code>.·The·created·escript·can·either·be·returned |
| 504 | as·a·binary·or·written·to·file.</p><p>As·an·example·of·how·the·function·can·be·used,·we·create·an·interpreted·escript | 504 | as·a·binary·or·written·to·file.</p><p>As·an·example·of·how·the·function·can·be·used,·we·create·an·interpreted·escript |
| 505 | that·uses·<code·class="inline">emu_args</code>·to·set·some·emulator·flag.·In·this·case,·it·happens·to·set | 505 | that·uses·<code·class="inline">emu_args</code>·to·set·some·emulator·flag.·In·this·case,·it·happens·to·set |
| 506 | number·of·schedulers·with·<code·class="inline">+S3</code>.·We·also·extract·the·different·sections·from·the | 506 | number·of·schedulers·with·<code·class="inline">+S3</code>.·We·also·extract·the·different·sections·from·the |
| 507 | newly·created·script:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="n">Source</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"%%·Demo\nmain(_Args)·->\n····io:format(\"</span><span·class="si">~p</span><span·class="s">\",[erlang:system_info(schedulers)]).\n"</span><span·class="p">.</span><span·class="w"> | 507 | newly·created·script:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="n">Source</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"%%·Demo\nmain(_Args)·->\n····io:format(\"</span><span·class="si">~p</span><span·class="s">\",[erlang:system_info(schedulers)]).\n"</span><span·class="p">.</span><span·class="w"> |
| 508 | </span><span·class="s">"%%·Demo\nmain(_Args)·->\n····io:format(erlang:system_info(schedulers)).\n"</span><span·class="gp·unselectable"> | 508 | </span><span·class="s">"%%·Demo\nmain(_Args)·->\n····io:format(erlang:system_info(schedulers)).\n"</span><span·class="gp·unselectable"> |
| 509 | >·</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 509 | >·</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="1707153294-1">(</span><span·class="s">"</span><span·class="si">~s</span><span·class="s">\n"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1707153294-2">[</span><span·class="n">Source</span><span·class="p"·da[·...·truncated·by·diffoscope;·len:·75,·SHA:·3261a406c9b38f38304edcc0900391e3d7e8710192249dbe4dbe7dd2bc6b24ee·...·]4-1">)</span><span·class="p">.</span><span·class="w"> |
| 510 | </span><span·class="c1">%%·Demo</span><span·class="w"> | 510 | </span><span·class="c1">%%·Demo</span><span·class="w"> |
| 511 | </span><span·class="nf">main</span><span·class="p"·data-group-id=" | 511 | </span><span·class="nf">main</span><span·class="p"·data-group-id="1707153294-3">(</span><span·class="p">_</span><span·class="n">Args</span><span·class="p"·data-group-id="1707153294-3">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 512 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 512 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="1707153294-4">(</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">system_info</span><span·class="p"·data-group-id="1707153294-5">(</span><span·class="ss">schedulers</span><span·class="p"·data-group-id="1707153294-5">)</span><span[·...·truncated·by·diffoscope;·len:·35,·SHA:·7c02c9f0b1760260583e2905be95b3de98bfb02aae11de1ac2f3572f8d37ceab·...·]4-4">)</span><span·class="p">.</span><span·class="w"> |
| 513 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> | 513 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> |
| 514 | >·</span><span·class="p"·data-group-id="2694153344-6">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Bin</span><span·class="p"·data-group-id="2694153344-6">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">escript</span><span·class="p">:</span><span·class="nf">create</span><span·class="p"·data-group-id="2694153344-7">(</span><span·class="ss">binary</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2694153344-8">[</span><span·class="ss">shebang</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">comment</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2694153344-9">{</span><span·class="ss">emu_args</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"+S3"</span><span·class="p"·data-group-id="2694153344-9">}</span><span·class="p">,</span><span·class="w"> | ||
| 515 | ······································</span><span·class="p"·data-group-id="2694153344-10">{</span><span·class="ss">source</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">list_to_binary</span><span·class="p"·data-group-id="2694153344-11">(</span><span·class="n">Source</span><span·class="p"·data-group-id="2694153344-11">)</span><span·class="p"·data-group-id="2694153344-10">}</span><span·class="p"·data-group-id="2694153344-8">]</span><span·class="p"·data-group-id="2694153344-7">)</span><span·class="p">.</span><span·class="w"> | ||
| 516 | </span><span·class="p"·data-group-id=" | 514 | >·</span><span·class="p"·data-group-id="1707153294-6">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Bin</span><span·class="p"·data-group-id="1707153294-6">}</span><span·class="w">·</span><span·class="o[·...·truncated·by·diffoscope;·len:·723,·SHA:·845f74434e668885671d0875f863a1ca66540b317043c646b4cd03471483433e·...·]"> |
| 515 | ······································</span><span·class="p"·data-group-id="1707153294-10">{</span><span·class="ss">source</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">list_to_binary</span><span·class="p"·data-group-id="1707153294-11">(</span><span·class="n">Source</span><span·class="p"·data-group-id="1707153294-11">)</span><span·class="p"·data-group-id="1707153294-10">}</span><span·class="p"·data-group-id="1707153294-8">]</span><span·class="p"·data-group-id="1707153294-7">)</span><span·class="p">.</span><span·class="w"> | ||
| 516 | </span><span·class="p"·data-group-id="1707153294-12">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="p"·data-group-id="1707153294-13"><<</span><span·class="s">"#!/usr/bin/env·escript\n%%·This·is·an·-*-·erlang·-*-·file\n%%!+S3"</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p"·data-group-id="1707153294-13">>></span><span·class="p"·data-group-id="1707153294-12">}</span><span·class="gp·unselectable"> | ||
| 517 | >·</span><span·class="nc">file</span><span·class="p">:</span><span·class="nf">write_file</span><span·class="p"·data-group-id=" | 517 | >·</span><span·class="nc">file</span><span·class="p">:</span><span·class="nf">write_file</span><span·class="p"·data-group-id="1707153294-14">(</span><span·class="s">"demo.escript"</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Bin</span><span·class="p"·data-group-id="1707153294-14">)</span><span·class="p">.</span><span·class="w"> |
| 518 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> | 518 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> |
| 519 | >·</span><span·class="nc">os</span><span·class="p">:</span><span·class="nf">cmd</span><span·class="p"·data-group-id=" | 519 | >·</span><span·class="nc">os</span><span·class="p">:</span><span·class="nf">cmd</span><span·class="p"·data-group-id="1707153294-15">(</span><span·class="s">"escript·demo.escript"</span><span·class="p"·data-group-id="1707153294-15">)</span><span·class="p">.</span><span·class="w"> |
| 520 | </span><span·class="s">"3"</span><span·class="gp·unselectable"> | 520 | </span><span·class="s">"3"</span><span·class="gp·unselectable"> |
| 521 | >·</span><span·class="nc">escript</span><span·class="p">:</span><span·class="nf">extract</span><span·class="p"·data-group-id="2694153344-16">(</span><span·class="s">"demo.escript"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2694153344-17">[</span><span·class="p"·data-group-id="2694153344-17">]</span><span·class="p"·data-group-id="2694153344-16">)</span><span·class="p">.</span><span·class="w"> | ||
| 522 | </span><span·class="p"·data-group-id="2694153344-18">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="p"·data-group-id="2694153344-19">[</span><span·class="p"·data-group-id="2694153344-20">{</span><span·class="ss">shebang</span><span·class="p">,</span><span·class="ss">default</span><span·class="p"·data-group-id="2694153344-20">}</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2694153344-21">{</span><span·class="ss">comment</span><span·class="p">,</span><span·class="ss">default</span><span·class="p"·data-group-id="2694153344-21">}</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2694153344-22">{</span><span·class="ss">emu_args</span><span·class="p">,</span><span·class="s">"+S3"</span><span·class="p"·data-group-id="2694153344-22">}</span><span·class="p">,</span><span·class="w"> | ||
| 523 | 521 | >·</span><span·class="nc">escript</span><span·class="p">:</span><span·class="nf">extract</span><span·class="p"·data-group-id="1707153294-16">(</span><span·class="s">"demo.escript"</span><span·class="p">,</span><span·class="w">·</span><span·cla[·...·truncated·by·diffoscope;·len:·170,·SHA:·e9eab14685fe33c54dfe2b800b0fd757a85b9781d0d0a3d05a68964e03735501·...·]</span><span·class="w"> | |
| 522 | </span><span·class="p"·data-group-id="1707153294-18">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="p"·data-group-id="1707153294-19">[</span><span·class="p"·data-group-id="1707153294-20">{</span><span·class="ss">shebang</span><span·class="p">,</span><span·class="ss">default</span><span·class="p"·data-group-id="1707153294-20">}</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1707153294-21">{</span><span·class="ss">comment</span><span·class="p">,</span><span·class="ss">default</span><span·class="p"·data-group-id="1707153294-21">}</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1707153294-22">{</span><span·class="ss">emu_args</span><span·class="p">,</span><span·class="s">"+S3"</span><span·class="p"·data-group-id="1707153294-22">}</span><span·class="p">,</span><span·class="w"> | ||
| 523 | ·····</span><span·class="p"·data-group-id="1707153294-23">{</span><span·class="ss">source</span><span·class="p">,</span><span·class="p"·data-group-id="1707153294-24"><<</span><span·class="s">"%%·Demo\nmain(_Args)·->\n····io:format(erlang:system_info(schedu"</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p"·data-group-id="1707153294-24">>></span><span·class="p"·data-group-id="1707153294-23">}</span><span·class="p"·data-group-id="1707153294-19">]</span><span·class="p"·data-group-id="1707153294-18">}</span></code></pre><p>An·escript·without·header·can·be·created·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="nc">file</span><span·class="p">:</span><span·class="nf">write_file</span><span·class="p"·data-group-id="6982097772-1">(</span><span·class="s">"demo.erl"</span><span·class="p">,</span><span·class="w"> | ||
| 524 | ··················</span><span·class="p"·data-group-id=" | 524 | ··················</span><span·class="p"·data-group-id="6982097772-2">[</span><span·class="s">"%%·demo.erl\n-module(demo).\n-export([main/1]).\n\n"</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Source</span><span·class="p"·data-group-id="6982097772-2">]</span><span·class="p"·da[·...·truncated·by·diffoscope;·len:·23,·SHA:·d066aec371199bce406be3fdb996eec3e9d4c2b3115e45ad30c94399132336ba·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 525 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> | 525 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> |
| 526 | >·</span><span·class="p"·data-group-id=" | 526 | >·</span><span·class="p"·data-group-id="6982097772-3">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="p">,</span><span·class="w">·</span><span·class="n">BeamCode</span><span·class="p"·data-group-id="6982097772-3">}</span><spa[·...·truncated·by·diffoscope;·len:·554,·SHA:·7d457e23a2073345e27ceb3c3545ae32004a4f02a55260a39ab220524dc875b8·...·]-4">)</span><span·class="p">.</span><span·class="w"> |
| 527 | </span><span·class="p"·data-group-id=" | 527 | </span><span·class="p"·data-group-id="6982097772-6">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="ss">demo</span><span·class="p">,</span><span·class="w"> |
| 528 | ····</span><span·class="p"·data-group-id=" | 528 | ····</span><span·class="p"·data-group-id="6982097772-7"><<</span><span·class="mi">70</span><span·class="p">,</span><span·class="mi">79</span><span·class="p">,</span><span·class="mi">82</span><span·class="p">,</span><span·class="mi">49</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">2</span><span·class="p">,</span><span·class="mi">208</span><span·class="p">,</span><span·class="mi">66</span><span·class="p">,</span><span·class="mi">69</span><span·class="p">,</span><span·class="mi">65</span><span·class="p">,</span><span·class="mi">77</span><span·class="p">,</span><span·class="mi">65</span><span·class="p">,</span><span·class="mi">116</span><span·class="p">,</span><span·class="mi">111</span><span·class="p">,</span><span·class="mi">109</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="w"> |
| 529 | ······</span><span·class="mi">79</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">9</span><span·class="p">,</span><span·class="mi">4</span><span·class="p">,</span><span·class="mi">100</span><span·class="p">,</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p"·data-group-id=" | 529 | ······</span><span·class="mi">79</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">9</span><span·class="p">,</span><span·class="mi">4</span><span·class="p">,</span><span·class="mi">100</span><span·class="p">,</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p"·data-group-id="6982097772-7">>></span><span·class="p"·data-group-id="6982097772-6">}</span><span·class="gp·unselectable"> |
| 530 | >·</span><span·class="nc">escript</span><span·class="p">:</span><span·class="nf">create</span><span·class="p"·data-group-id=" | 530 | >·</span><span·class="nc">escript</span><span·class="p">:</span><span·class="nf">create</span><span·class="p"·data-group-id="6982097772-8">(</span><span·class="s">"demo.beam"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6982097772-9">[</span><span·class="p"·data-group-id="6982097772-10">{</span><span·class="ss">beam</span><span·c[·...·truncated·by·diffoscope;·len:·220,·SHA:·813760e3a2e1c8d4caa769502ae64fa87245f5a4aaf3dcbbe7fd0a5b17c014a6·...·]-8">)</span><span·class="p">.</span><span·class="w"> |
| 531 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> | 531 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> |
| 532 | >·</span><span·class="nc">escript</span><span·class="p">:</span><span·class="nf">extract</span><span·class="p"·data-group-id=" | 532 | >·</span><span·class="nc">escript</span><span·class="p">:</span><span·class="nf">extract</span><span·class="p"·data-group-id="6982097772-11">(</span><span·class="s">"demo.beam"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6982097772-12">[</span><span·class="p"·data-group-id="6982097772-12">]</span><span·class="p"·data-group-id="69[·...·truncated·by·diffoscope;·len:·8,·SHA:·a48c7adc3b32472fe2519487bc43c1a863bbb4c4e0aff5395141dcc2745ee26c·...·]-11">)</span><span·class="p">.</span><span·class="w"> |
| 533 | </span><span·class="p"·data-group-id=" | 533 | </span><span·class="p"·data-group-id="6982097772-13">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="p"·data-group-id="6982097772-14">[</span><span·class="p"·data-group-id="6982097772-15">{</span><span·class="ss">shebang</span><span·class="p">,</span><span·class="ss">und[·...·truncated·by·diffoscope;·len:·543,·SHA:·a36af1f85222156c1c300bd5b1b162726dee074a087cb1a884db047c3f7871d3·...·]-17">}</span><span·class="p">,</span><span·class="w"> |
| 534 | ·····</span><span·class="p"·data-group-id=" | 534 | ·····</span><span·class="p"·data-group-id="6982097772-18">{</span><span·class="ss">beam</span><span·class="p">,</span><span·class="p"·data-group-id="6982097772-19"><<</span><span·class="mi">70</span><span·class="p">,</span><span·class="mi">79</span><span·class="p">,</span><span·class="mi">82</span><span·class="p">,</span><span·class="mi">49</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">3</span><span·class="p">,</span><span·class="mi">68</span><span·class="p">,</span><span·class="mi">66</span><span·class="p">,</span><span·class="mi">69</span><span·class="p">,</span><span·class="mi">65</span><span·class="p">,</span><span·class="mi">77</span><span·class="p">,</span><span·class="mi">65</span><span·class="p">,</span><span·class="mi">116</span><span·class="p">,</span><span·class="w"> |
| 535 | ·············</span><span·class="mi">111</span><span·class="p">,</span><span·class="mi">109</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">83</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">9</span><span·class="p">,</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p"·data-group-id=" | 535 | ·············</span><span·class="mi">111</span><span·class="p">,</span><span·class="mi">109</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">83</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">9</span><span·class="p">,</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p"·data-group-id="6982097772-19">>></span><span·class="p"·data-group-id="6982097772-18">}</span><span·class="p"·data-group-id="6982097772-14">]</span><span·class="p"·data-group-id="6982097772-13">}</span><span·class="gp·unselectable"> |
| 536 | >·</span><span·class="nc">os</span><span·class="p">:</span><span·class="nf">cmd</span><span·class="p"·data-group-id=" | 536 | >·</span><span·class="nc">os</span><span·class="p">:</span><span·class="nf">cmd</span><span·class="p"·data-group-id="6982097772-20">(</span><span·class="s">"escript·demo.beam"</span><span·class="p"·data-group-id="6982097772-20">)</span><span·class="p">.</span><span·class="w"> |
| 537 | </span><span·class="s">"true"</span></code></pre><p>Here·we·create·an·archive·script·containing·both·Erlang·code·and·Beam·code,·then | 537 | </span><span·class="s">"true"</span></code></pre><p>Here·we·create·an·archive·script·containing·both·Erlang·code·and·Beam·code,·then |
| 538 | we·iterate·over·all·files·in·the·archive·and·collect·their·contents·and·some | 538 | we·iterate·over·all·files·in·the·archive·and·collect·their·contents·and·some |
| 539 | information·about·them:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="p"·data-group-id="4872741739-1">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">SourceCode</span><span·class="p"·data-group-id="4872741739-1">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">file</span><span·class="p">:</span><span·class="nf">read_file</span><span·class="p"·data-group-id="4872741739-2">(</span><span·class="s">"demo.erl"</span><span·class="p"·data-group-id="4872741739-2">)</span><span·class="p">.</span><span·class="w"> | ||
| 540 | 539 | information·about·them:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="p"·data-group-id="3602158777-1">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class=[·...·truncated·by·diffoscope;·len:·418,·SHA:·8228e2ed2e9116507038830ec8ee170672d2db88b8b05d63cb09c92386e7c351·...·]"> | |
| 540 | </span><span·class="p"·data-group-id="3602158777-3">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="p"·data-group-id="3602158777-4"><<</span><span·class="s">"%%·demo.erl\n-module(demo).\n-export([main/1]).\n\n%%·Demo\nmain(_Arg"</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p"·data-group-id="3602158777-4">>></span><span·class="p"·data-group-id="3602158777-3">}</span><span·class="gp·unselectable"> | ||
| 541 | >·</span><span·class="nc">escript</span><span·class="p">:</span><span·class="nf">create</span><span·class="p"·data-group-id=" | 541 | >·</span><span·class="nc">escript</span><span·class="p">:</span><span·class="nf">create</span><span·class="p"·data-group-id="3602158777-5">(</span><span·class="s">"demo.escript"</span><span·class="p">,</span><span·class="w"> |
| 542 | ·················</span><span·class="p"·data-group-id=" | 542 | ·················</span><span·class="p"·data-group-id="3602158777-6">[</span><span·class="ss">shebang</span><span·class="p">,</span><span·class="w"> |
| 543 | ··················</span><span·class="p"·data-group-id=" | 543 | ··················</span><span·class="p"·data-group-id="3602158777-7">{</span><span·class="ss">archive</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3602158777-8">[</span><span·class="p"·data-group-id="3602158777-9">{</span><span·class="s">"demo.erl"</span><span·[·...·truncated·by·diffoscope;·len:·116,·SHA:·91fd7d628d5ef7d5e0c6081949bbc415d7ed064429b8849fed1cb2c4e5d8aaf4·...·]-9">}</span><span·class="p">,</span><span·class="w"> |
| 544 | ·····························</span><span·class="p"·data-group-id=" | 544 | ·····························</span><span·class="p"·data-group-id="3602158777-10">{</span><span·class="s">"demo.beam"</span><span·class="p">,</span><span·class="w">·</span><span·class="n">BeamCode</span><span·class="p"·data-group-id="3602158777-10">}</span><span·class="p"·data-group-id="3602158777-8">]</span><sp[·...·truncated·by·diffoscope;·len:·300,·SHA:·e26999afd03a0796fb350861acc97530aba01495d82aa51927d398b5597ca43b·...·]-5">)</span><span·class="p">.</span><span·class="w"> |
| 545 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> | 545 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> |
| 546 | >·</span><span·class="p"·data-group-id=" | 546 | >·</span><span·class="p"·data-group-id="3602158777-12">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3602158777-13">[</span><span·class="p"·data-group-id="3602158777-14">{</span><span·class="ss">shebang</span><span·class="p">,</s[·...·truncated·by·diffoscope;·len:·565,·SHA:·ac3110c45cb3403a35205c0381f7ce9d5d211b8bdc2640f9bdfade5f7056b76b·...·]-16">}</span><span·class="p">,</span><span·class="w"> |
| 547 | ·····</span><span·class="p"·data-group-id=" | 547 | ·····</span><span·class="p"·data-group-id="3602158777-17">{</span><span·class="ss">archive</span><span·class="p">,</span><span·class="w">·</span><span·class="n">ArchiveBin</span><span·class="p"·data-group-id="3602158777-17">}</span><span·class="p"·data-group-id="3602158777-13">]</span><span·class="[·...·truncated·by·diffoscope;·len:·497,·SHA:·ec4a887555242fb44696d261e0227c3b43b79085d5cd5ec4011ee49302fd6ea5·...·]-18">)</span><span·class="p">.</span><span·class="w"> |
| 548 | </span><span·class="p"·data-group-id=" | 548 | </span><span·class="p"·data-group-id="3602158777-20">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="p"·data-group-id="3602158777-21">[</span><span·class="p"·data-group-id="3602158777-22">{</span><span·class="ss">shebang</span><span·class="p">,</span><span·class="ss">def[·...·truncated·by·diffoscope;·len:·541,·SHA:·8f8c9361a3eab2d649f36052dbe53a36b61837ee7d68cabcb3ee5b8b223771af·...·]-24">}</span><span·class="p">,</span><span·class="w"> |
| 549 | ·····</span><span·class="p"·data-group-id=" | 549 | ·····</span><span·class="p"·data-group-id="3602158777-25">{</span><span·class="p"·data-group-id="3602158777-26">{</span><span·class="ss">archive</span><span·class="p">,</span><span·class="p"·data-group-id="3602158777-27"><<</span><span·class="mi">80</span><span·class="p">,</span><span·class="mi">75</span><span·class="p">,</span><span·class="mi">3</span><span·class="p">,</span><span·class="mi">4</span><span·class="p">,</span><span·class="mi">20</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">8</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">118</span><span·class="p">,</span><span·class="mi">7</span><span·class="p">,</span><span·class="mi">98</span><span·class="p">,</span><span·class="mi">60</span><span·class="p">,</span><span·class="mi">105</span><span·class="p">,</span><span·class="w"> |
| 550 | ················</span><span·class="mi">152</span><span·class="p">,</span><span·class="mi">61</span><span·class="p">,</span><span·class="mi">93</span><span·class="p">,</span><span·class="mi">107</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">118</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p"·data-group-id=" | 550 | ················</span><span·class="mi">152</span><span·class="p">,</span><span·class="mi">61</span><span·class="p">,</span><span·class="mi">93</span><span·class="p">,</span><span·class="mi">107</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">118</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p"·data-group-id="3602158777-27">>></span><span·class="p"·data-group-id="3602158777-26">}</span><span·class="p">]</span><span·class="p"·data-group-id="3602158777-25">}</span><span·class="gp·unselectable"> |
| 551 | >·</span><span·class="nc">file</span><span·class="p">:</span><span·class="nf">write_file</span><span·class="p"·data-group-id=" | 551 | >·</span><span·class="nc">file</span><span·class="p">:</span><span·class="nf">write_file</span><span·class="p"·data-group-id="3602158777-28">(</span><span·class="s">"demo.zip"</span><span·class="p">,</span><span·class="w">·</span><span·class="n">ArchiveBin</span><span·class="p"·data-group-id="3602158777-28">)</span><span·class="p">.</span><span·class="w"> |
| 552 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> | 552 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> |
| 553 | >·</span><span·class="nc">zip</span><span·class="p">:</span><span·class="nf">foldl</span><span·class="p"·data-group-id=" | 553 | >·</span><span·class="nc">zip</span><span·class="p">:</span><span·class="nf">foldl</span><span·class="p"·data-group-id="3602158777-29">(</span><span·class="nf">fun</span><span·class="p"·data-group-id="3602158777-30">(</span><span·class="n">N</span><span·class="p">,</span><span·class="w">·</span><span·class="n">I</span><span·class="p">,</span><span·class="w">·</span><span·cl[·...·truncated·by·diffoscope;·len:·1252,·SHA:·b360f47721a564304eda529e1a87ff16c374c3899c95bcbf06d1c9d420a9649a·...·]-29">)</span><span·class="p">.</span><span·class="w"> |
| 554 | </span><span·class="p"·data-group-id=" | 554 | </span><span·class="p"·data-group-id="3602158777-36">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="p"·data-group-id="3602158777-37">[</span><span·class="p"·data-group-id="3602158777-38">{</span><span·class="s">"demo.beam"</span><span·class="p">,</span><span·class="w"> |
| 555 | ······</span><span·class="p"·data-group-id=" | 555 | ······</span><span·class="p"·data-group-id="3602158777-39">{</span><span·class="ss">file_info</span><span·class="p">,</span><span·class="mi">748</span><span·class="p">,</span><span·class="ss">regular</span><span·class="p">,</span><span·class="ss">read_write</span><span·class="p">,</span><span·class="w"> |
| 556 | ·················</span><span·class="p"·data-group-id=" | 556 | ·················</span><span·class="p"·data-group-id="3602158777-40">{</span><span·class="p"·data-group-id="3602158777-41">{</span><span·class="mi">2010</span><span·class="p">,</span><span·class="mi">3</span><span·class="p">,</span><span·class="mi">2</span><span·class="p"·data-group-id="3602158777-41">}</span[·...·truncated·by·diffoscope;·len:·299,·SHA:·97bab370bd785848d8e8c6750b7127afe5dfe2f857ede8ed3957579a85bc9bf8·...·]-40">}</span><span·class="p">,</span><span·class="w"> |
| 557 | ·················</span><span·class="p"·data-group-id=" | 557 | ·················</span><span·class="p"·data-group-id="3602158777-43">{</span><span·class="p"·data-group-id="3602158777-44">{</span><span·class="mi">2010</span><span·class="p">,</span><span·class="mi">3</span><span·class="p">,</span><span·class="mi">2</span><span·class="p"·data-group-id="3602158777-44">}</span[·...·truncated·by·diffoscope;·len:·299,·SHA:·f5e3413f76cc2f0883eb497cb3d887c65f5f1965f3342a19f187318ec539e67a·...·]-43">}</span><span·class="p">,</span><span·class="w"> |
| 558 | ·················</span><span·class="p"·data-group-id=" | 558 | ·················</span><span·class="p"·data-group-id="3602158777-46">{</span><span·class="p"·data-group-id="3602158777-47">{</span><span·class="mi">2010</span><span·class="p">,</span><span·class="mi">3</span><span·class="p">,</span><span·class="mi">2</span><span·class="p"·data-group-id="3602158777-47">}</span[·...·truncated·by·diffoscope;·len:·299,·SHA:·bdd296114a7b38770e5e4a0820e8d836091eda6ea28a256ca40db3f167230945·...·]-46">}</span><span·class="p">,</span><span·class="w"> |
| 559 | ·················</span><span·class="mi">54</span><span·class="p">,</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p"·data-group-id=" | 559 | ·················</span><span·class="mi">54</span><span·class="p">,</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p"·data-group-id="3602158777-39">}</span><span·class="p">,</span><span·class="w"> |
| 560 | ······</span><span·class="p"·data-group-id=" | 560 | ······</span><span·class="p"·data-group-id="3602158777-49"><<</span><span·class="mi">70</span><span·class="p">,</span><span·class="mi">79</span><span·class="p">,</span><span·class="mi">82</span><span·class="p">,</span><span·class="mi">49</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">2</span><span·class="p">,</span><span·class="mi">228</span><span·class="p">,</span><span·class="mi">66</span><span·class="p">,</span><span·class="mi">69</span><span·class="p">,</span><span·class="mi">65</span><span·class="p">,</span><span·class="mi">77</span><span·class="p">,</span><span·class="mi">65</span><span·class="p">,</span><span·class="mi">116</span><span·class="p">,</span><span·class="mi">111</span><span·class="p">,</span><span·class="mi">109</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="w"> |
| 561 | ········</span><span·class="mi">83</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p"·data-group-id=" | 561 | ········</span><span·class="mi">83</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p"·data-group-id="3602158777-49">>></span><span·class="p"·data-group-id="3602158777-38">}</span><span·class="p">,</span><span·class="w"> |
| 562 | ·····</span><span·class="p"·data-group-id=" | 562 | ·····</span><span·class="p"·data-group-id="3602158777-50">{</span><span·class="s">"demo.erl"</span><span·class="p">,</span><span·class="w"> |
| 563 | ······</span><span·class="p"·data-group-id=" | 563 | ······</span><span·class="p"·data-group-id="3602158777-51">{</span><span·class="ss">file_info</span><span·class="p">,</span><span·class="mi">118</span><span·class="p">,</span><span·class="ss">regular</span><span·class="p">,</span><span·class="ss">read_write</span><span·class="p">,</span><span·class="w"> |
| 564 | ·················</span><span·class="p"·data-group-id=" | 564 | ·················</span><span·class="p"·data-group-id="3602158777-52">{</span><span·class="p"·data-group-id="3602158777-53">{</span><span·class="mi">2010</span><span·class="p">,</span><span·class="mi">3</span><span·class="p">,</span><span·class="mi">2</span><span·class="p"·data-group-id="3602158777-53">}</span[·...·truncated·by·diffoscope;·len:·299,·SHA:·9c86d789bd6dda3e01197de500c07dd49c267bd57e007d2bbe21d5de5b56a576·...·]-52">}</span><span·class="p">,</span><span·class="w"> |
| 565 | ·················</span><span·class="p"·data-group-id=" | 565 | ·················</span><span·class="p"·data-group-id="3602158777-55">{</span><span·class="p"·data-group-id="3602158777-56">{</span><span·class="mi">2010</span><span·class="p">,</span><span·class="mi">3</span><span·class="p">,</span><span·class="mi">2</span><span·class="p"·data-group-id="3602158777-56">}</span[·...·truncated·by·diffoscope;·len:·299,·SHA:·7c4d2feffb87e35ad9a604ba941f270460a7c668aba854e1e61b3968382ddeef·...·]-55">}</span><span·class="p">,</span><span·class="w"> |
| 566 | ·················</span><span·class="p"·data-group-id=" | 566 | ·················</span><span·class="p"·data-group-id="3602158777-58">{</span><span·class="p"·data-group-id="3602158777-59">{</span><span·class="mi">2010</span><span·class="p">,</span><span·class="mi">3</span><span·class="p">,</span><span·class="mi">2</span><span·class="p"·data-group-id="3602158777-59">}</span[·...·truncated·by·diffoscope;·len:·299,·SHA:·5bf33e59edc21cbf9222ba33c531f7090ebd85183284be478c7c8ad4cf93c5bd·...·]-58">}</span><span·class="p">,</span><span·class="w"> |
| 567 | ·················</span><span·class="mi">54</span><span·class="p">,</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p"·data-group-id=" | 567 | ·················</span><span·class="mi">54</span><span·class="p">,</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p"·data-group-id="3602158777-51">}</span><span·class="p">,</span><span·class="w"> |
| 568 | ······</span><span·class="p"·data-group-id=" | 568 | ······</span><span·class="p"·data-group-id="3602158777-61"><<</span><span·class="s">"%%·demo.erl\n-module(demo).\n-export([main/1]).\n\n%%·Demo\nmain(_Arg"</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p"·data-group-id="3602158777-61">>[·...·truncated·by·diffoscope;·len:·160,·SHA:·509bec06c96deb21876bc3f9148c40cadac1cb3b518a1fb7b26951ec0c304e93·...·]-36">}</span></code></pre> |
| 569 | ··</section> | 569 | ··</section> |
| 570 | </section> | 570 | </section> |
| 571 | <section·class="detail"·id="extract/2"> | 571 | <section·class="detail"·id="extract/2"> |
| 572 | ··<div·class="detail-header"> | 572 | ··<div·class="detail-header"> |
| 573 | ····<a·href="#extract/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 573 | ····<a·href="#extract/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 574 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 574 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 593, 24 lines modified | Offset 593, 24 lines modified | ||
| 593 | ······</div> | 593 | ······</div> |
| 594 | <p>Parses·an·escript·and·extracts·its·sections.·This·is·the·reverse·of·<a·href="#create/2"><code·class="inline">create/2</code></a>.</p><p>All·sections·are·returned·even·if·they·do·not·exist·in·the·escript.·If·a | 594 | <p>Parses·an·escript·and·extracts·its·sections.·This·is·the·reverse·of·<a·href="#create/2"><code·class="inline">create/2</code></a>.</p><p>All·sections·are·returned·even·if·they·do·not·exist·in·the·escript.·If·a |
| 595 | particular·section·happens·to·have·the·same·value·as·the·default·value,·the | 595 | particular·section·happens·to·have·the·same·value·as·the·default·value,·the |
| 596 | extracted·value·is·set·to·the·atom·<code·class="inline">default</code>.·If·a·section·is·missing,·the | 596 | extracted·value·is·set·to·the·atom·<code·class="inline">default</code>.·If·a·section·is·missing,·the |
| 597 | extracted·value·is·set·to·the·atom·<code·class="inline">undefined</code>.</p><p>Option·<code·class="inline">compile_source</code>·only·affects·the·result·if·the·escript·contains·<code·class="inline">source</code> | 597 | extracted·value·is·set·to·the·atom·<code·class="inline">undefined</code>.</p><p>Option·<code·class="inline">compile_source</code>·only·affects·the·result·if·the·escript·contains·<code·class="inline">source</code> |
| 598 | code.·In·this·case·the·Erlang·code·is·automatically·compiled·and | 598 | code.·In·this·case·the·Erlang·code·is·automatically·compiled·and |
| 599 | <code·class="inline">{source,·BeamCode}</code>·is·returned·instead·of·<code·class="inline">{source,·SourceCode}</code>.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="nc">escript</span><span·class="p">:</span><span·class="nf">create</span><span·class="p"·data-group-id=" | 599 | <code·class="inline">{source,·BeamCode}</code>·is·returned·instead·of·<code·class="inline">{source,·SourceCode}</code>.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="nc">escript</span><span·class="p">:</span><span·class="nf">create</span><span·class="p"·data-group-id="1294306294-1">(</span><span·class="s">"demo.escript"</span><span·class="p">,</span><span·class="w"> |
| 600 | ·················</span><span·class="p"·data-group-id=" | 600 | ·················</span><span·class="p"·data-group-id="1294306294-2">[</span><span·class="ss">shebang</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1294306294-3">{</span><span·class="ss">archive</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-gr[·...·truncated·by·diffoscope;·len:·248,·SHA:·cbc0290cc7b0d97db6cc366e32c98a0b2d87b99373bad3ea84b348e98393076b·...·]-5">}</span><span·class="p">,</span><span·class="w"> |
| 601 | ······································</span><span·class="p"·data-group-id=" | 601 | ······································</span><span·class="p"·data-group-id="1294306294-6">{</span><span·class="s">"demo.beam"</span><span·class="p">,</span><span·class="w">·</span><span·class="n">BeamCode</span><span·class="p"·data-group-id="1294306294-6">}</span><span·class="p"·data-group-id="1294306294-4">]</span><span[·...·truncated·by·diffoscope;·len:·296,·SHA:·006b9e1a8cfaf0562f4732f5cf84568757a50f56415326e56de8ecd233ee9b8b·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 602 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> | 602 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> |
| 603 | >·</span><span·class="p"·data-group-id=" | 603 | >·</span><span·class="p"·data-group-id="1294306294-8">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1294306294-9">[</span><span·class="p"·data-group-id="1294306294-10">{</span><span·class="ss">shebang</span><span·class="p">,</spa[·...·truncated·by·diffoscope;·len:·563,·SHA:·55e982b115f15a370be011bb558a107f0cefee5fbcafc6e3e79d83dd00ab7666·...·]-12">}</span><span·class="p">,</span><span·class="w"> |
| 604 | ·····</span><span·class="p"·data-group-id=" | 604 | ·····</span><span·class="p"·data-group-id="1294306294-13">{</span><span·class="ss">archive</span><span·class="p">,</span><span·class="w">·</span><span·class="n">ArchiveBin</span><span·class="p"·data-group-id="1294306294-13">}</span><span·class="p"·data-group-id="1294306294-9">]</span><span·class="p[·...·truncated·by·diffoscope;·len:·27,·SHA:·bfd21a7001a30514c29cfe7b39f5b3fd553c8cbb4f9354c59b0e8c8a2fc687aa·...·]-8">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w"> |
| 605 | ··············</span><span·class="nc">escript</span><span·class="p">:</span><span·class="nf">extract</span><span·class="p"·data-group-id=" | 605 | ··············</span><span·class="nc">escript</span><span·class="p">:</span><span·class="nf">extract</span><span·class="p"·data-group-id="1294306294-14">(</span><span·class="s">"demo.escript"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1294306294-15">[</span><span·class="p"·data-group-id="1294306294-15">]</span><span·class="p"·data-group-id=[·...·truncated·by·diffoscope;·len:·11,·SHA:·3862d5e9ec67f3287cd3d8b52844de9c044538df2c617f7ad30d29faef63f87f·...·]-14">)</span><span·class="p">.</span><span·class="w"> |
| 606 | </span><span·class="p"·data-group-id=" | 606 | </span><span·class="p"·data-group-id="1294306294-16">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="p"·data-group-id="1294306294-17">[</span><span·class="p"·data-group-id="1294306294-18">{</span><span·class="p"·data-group-id="1294306294-19">{</span><span·class="ss">arch[·...·truncated·by·diffoscope;·len:·75,·SHA:·931ae62051d3e4da59dc519ec1a2009454ad3a6d9b82b8183873cfe46fe7ca64·...·]-20"><<</span><span·class="mi">80</span><span·class="p">,</span><span·class="mi">75</span><span·class="p">,</span><span·class="mi">3</span><span·class="p">,</span><span·class="mi">4</span><span·class="p">,</span><span·class="mi">20</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">8</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">118</span><span·class="p">,</span><span·class="mi">7</span><span·class="p">,</span><span·class="mi">98</span><span·class="p">,</span><span·class="mi">60</span><span·class="p">,</span><span·class="mi">105</span><span·class="p">,</span><span·class="w"> |
| 607 | ················</span><span·class="mi">152</span><span·class="p">,</span><span·class="mi">61</span><span·class="p">,</span><span·class="mi">93</span><span·class="p">,</span><span·class="mi">107</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">118</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p"·data-group-id=" | 607 | ················</span><span·class="mi">152</span><span·class="p">,</span><span·class="mi">61</span><span·class="p">,</span><span·class="mi">93</span><span·class="p">,</span><span·class="mi">107</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">118</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p"·data-group-id="1294306294-20">>></span><span·class="p"·data-group-id="1294306294-19">}</span><span·class="w"> |
| 608 | ·····</span><span·class="p"·data-group-id=" | 608 | ·····</span><span·class="p"·data-group-id="1294306294-21">{</span><span·class="ss">emu_args</span><span·class="p">,</span><span·class="ss">undefined</span><span·class="p"·data-group-id="1294306294-21">}</span><span·class="p">]</span><span·class="p"·data-group-id="1294306294-18">}</span></code></pre> |
| 609 | ··</section> | 609 | ··</section> |
| 610 | </section> | 610 | </section> |
| 611 | <section·class="detail"·id="script_name/0"> | 611 | <section·class="detail"·id="script_name/0"> |
| 612 | ··<div·class="detail-header"> | 612 | ··<div·class="detail-header"> |
| 613 | ····<a·href="#script_name/0"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 613 | ····<a·href="#script_name/0"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 614 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 614 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 658, 15 lines modified | Offset 658, 15 lines modified | ||
| 658 | ······<p·class="built-using"> | 658 | ······<p·class="built-using"> |
| 659 | ········Built·using | 659 | ········Built·using |
| 660 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 660 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 661 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 661 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 662 | ······</p> | 662 | ······</p> |
| 663 | <p>Copyright·©·1996-202 | 663 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 664 | ····</footer> | 664 | ····</footer> |
| 665 | ··</div> | 665 | ··</div> |
| 666 | </main> | 666 | </main> |
| 667 | </div> | 667 | </div> |
| 668 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 668 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 669 | ··<script> | 669 | ··<script> |
| 670 | ··let·initialized·=·false; | 670 | ··let·initialized·=·false; |
| Offset 216, 35 lines modified | Offset 216, 35 lines modified | ||
| 216 | disallow·concurrent·updates·during·the·entire·traversal.</p><p>Moreover,·traversals·not·done·in·a·<em>safe</em>·way,·on·tables·where·keys·are·inserted | 216 | disallow·concurrent·updates·during·the·entire·traversal.</p><p>Moreover,·traversals·not·done·in·a·<em>safe</em>·way,·on·tables·where·keys·are·inserted |
| 217 | or·deleted·during·the·traversal,·may·yield·the·following·undesired·effects:</p><ul><li>Any·key·may·be·missed.</li><li>Any·key·may·be·found·more·than·once.</li><li>The·traversal·may·fail·with·<code·class="inline">badarg</code>·exception·if·keys·are·deleted.</li></ul><p>A·table·traversal·is·<em>safe</em>·if·either</p><ul><li>the·table·is·of·type·<code·class="inline">ordered_set</code>.</li><li>the·entire·table·traversal·is·done·within·one·ETS·function·call.</li><li>function·<a·href="#safe_fixtable/2"><code·class="inline">safe_fixtable/2</code></a>·is·used·to·keep·the·table·fixated·during·the·entire | 217 | or·deleted·during·the·traversal,·may·yield·the·following·undesired·effects:</p><ul><li>Any·key·may·be·missed.</li><li>Any·key·may·be·found·more·than·once.</li><li>The·traversal·may·fail·with·<code·class="inline">badarg</code>·exception·if·keys·are·deleted.</li></ul><p>A·table·traversal·is·<em>safe</em>·if·either</p><ul><li>the·table·is·of·type·<code·class="inline">ordered_set</code>.</li><li>the·entire·table·traversal·is·done·within·one·ETS·function·call.</li><li>function·<a·href="#safe_fixtable/2"><code·class="inline">safe_fixtable/2</code></a>·is·used·to·keep·the·table·fixated·during·the·entire |
| 218 | traversal.</li></ul><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>Even·though·the·access·of·a·single·object·is·always·guaranteed·to·be | 218 | traversal.</li></ul><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>Even·though·the·access·of·a·single·object·is·always·guaranteed·to·be |
| 219 | <a·href="ets.html#module-concurrency">atomic·and·isolated</a>,·each·traversal·through·a·table·to | 219 | <a·href="ets.html#module-concurrency">atomic·and·isolated</a>,·each·traversal·through·a·table·to |
| 220 | find·the·next·key·is·not·done·with·such·guarantees.·This·is·often·not·a | 220 | find·the·next·key·is·not·done·with·such·guarantees.·This·is·often·not·a |
| 221 | problem,·but·may·cause·rare·subtle·"unexpected"·effects·if·a·concurrent | 221 | problem,·but·may·cause·rare·subtle·"unexpected"·effects·if·a·concurrent |
| 222 | process·inserts·objects·during·a·traversal.·For·example,·consider·one·process | 222 | process·inserts·objects·during·a·traversal.·For·example,·consider·one·process |
| 223 | doing</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">new</span><span·class="p"·data-group-id=" | 223 | doing</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">new</span><span·class="p"·data-group-id="0362136311-1">(</span><span·class="ss">t</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0362136311-2">[</span><span·class="ss">ordered_set</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">named_ta[·...·truncated·by·diffoscope;·len:·104,·SHA:·495a14dc9b8ebbeb78505fa2888c46d1c88286653b4fd9a79a7f8a42466e528a·...·]-1">)</span><span·class="p">,</span><span·class="w"> |
| 224 | </span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">insert</span><span·class="p"·data-group-id=" | 224 | </span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">insert</span><span·class="p"·data-group-id="0362136311-3">(</span><span·class="ss">t</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0362136311-4">{</span><span·class="mi">1</span><span·class="p"·data-group-id="0362136311-4">}</span><span·class="p"·data-group-id=[·...·truncated·by·diffoscope;·len:·11,·SHA:·2bb6161e26433e9db78b23ec3055d6c178ca813031965e9c4e65fcf04d26f701·...·]-3">)</span><span·class="p">,</span><span·class="w"> |
| 225 | </span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">insert</span><span·class="p"·data-group-id=" | 225 | </span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">insert</span><span·class="p"·data-group-id="0362136311-5">(</span><span·class="ss">t</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0362136311-6">{</span><span·class="mi">2</span><span·class="p"·data-group-id="0362136311-6">}</span><span·class="p"·data-group-id=[·...·truncated·by·diffoscope;·len:·11,·SHA:·2bb6161e26433e9db78b23ec3055d6c178ca813031965e9c4e65fcf04d26f701·...·]-5">)</span><span·class="p">,</span><span·class="w"> |
| 226 | </span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">insert</span><span·class="p"·data-group-id=" | 226 | </span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">insert</span><span·class="p"·data-group-id="0362136311-7">(</span><span·class="ss">t</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0362136311-8">{</span><span·class="mi">3</span><span·class="p"·data-group-id="0362136311-8">}</span><span·class="p"·data-group-id=[·...·truncated·by·diffoscope;·len:·11,·SHA:·2bb6161e26433e9db78b23ec3055d6c178ca813031965e9c4e65fcf04d26f701·...·]-7">)</span><span·class="p">,</span></code></pre><p>A·concurrent·call·to·<code·class="inline">ets:first(t)</code>,·done·by·another·process,·may·then·in·rare |
| 227 | cases·return·<code·class="inline">2</code>·even·though·<code·class="inline">2</code>·has·never·existed·in·the·table·ordered·as·the | 227 | cases·return·<code·class="inline">2</code>·even·though·<code·class="inline">2</code>·has·never·existed·in·the·table·ordered·as·the |
| 228 | first·key.·In·the·same·way,·a·concurrent·call·to·<code·class="inline">ets:next(t,·1)</code>·may·return | 228 | first·key.·In·the·same·way,·a·concurrent·call·to·<code·class="inline">ets:next(t,·1)</code>·may·return |
| 229 | <code·class="inline">3</code>·even·though·<code·class="inline">3</code>·never·existed·in·the·table·ordered·directly·after·<code·class="inline">1</code>.</p><p>Effects·like·this·are·improbable·but·possible.·The·probability·will·further·be | 229 | <code·class="inline">3</code>·even·though·<code·class="inline">3</code>·never·existed·in·the·table·ordered·directly·after·<code·class="inline">1</code>.</p><p>Effects·like·this·are·improbable·but·possible.·The·probability·will·further·be |
| 230 | reduced·(if·not·vanish)·if·table·option | 230 | reduced·(if·not·vanish)·if·table·option |
| 231 | <a·href="ets.html#new_2_write_concurrency"><code·class="inline">write_concurrency</code></a>·is·not·enabled.·This | 231 | <a·href="ets.html#new_2_write_concurrency"><code·class="inline">write_concurrency</code></a>·is·not·enabled.·This |
| 232 | can·also·only·be·a·potential·concern·for·<code·class="inline">ordered_set</code>·where·the·traversal | 232 | can·also·only·be·a·potential·concern·for·<code·class="inline">ordered_set</code>·where·the·traversal |
| 233 | order·is·defined.</p></section><p>Traversals·using·<code·class="inline">match</code>·and·<code·class="inline">select</code>·functions·may·not·need·to·scan·the·entire | 233 | order·is·defined.</p></section><p>Traversals·using·<code·class="inline">match</code>·and·<code·class="inline">select</code>·functions·may·not·need·to·scan·the·entire |
| 234 | table·depending·on·how·the·key·is·specified.·A·match·pattern·with·a·<em>fully·bound | 234 | table·depending·on·how·the·key·is·specified.·A·match·pattern·with·a·<em>fully·bound |
| 235 | key</em>·(without·any·match·variables)·will·optimize·the·operation·to·a·single·key | 235 | key</em>·(without·any·match·variables)·will·optimize·the·operation·to·a·single·key |
| 236 | lookup·without·any·table·traversal·at·all.·For·<code·class="inline">ordered_set</code>·a·<em>partially·bound | 236 | lookup·without·any·table·traversal·at·all.·For·<code·class="inline">ordered_set</code>·a·<em>partially·bound |
| 237 | key</em>·will·limit·the·traversal·to·only·scan·a·subset·of·the·table·based·on·term | 237 | key</em>·will·limit·the·traversal·to·only·scan·a·subset·of·the·table·based·on·term |
| 238 | order.·A·partially·bound·key·is·either·a·list·or·a·tuple·with·a·prefix·that·is | 238 | order.·A·partially·bound·key·is·either·a·list·or·a·tuple·with·a·prefix·that·is |
| 239 | fully·bound.·Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">T</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">new</span><span·class="p"·data-group-id=" | 239 | fully·bound.·Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">T</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">new</span><span·class="p"·data-group-id="5778019486-1">(</span><span·class="ss">t</span><span·class="p">,</span><span·class="p"·data-group-id="5778019486-2">[</span><span·class="ss">ordered_set</span><span·class="p"·data-group-id="5778019486-2">]</span><span·class="p"·data-group-id="5778019486-1"[·...·truncated·by·diffoscope;·len:·546,·SHA:·cf51689c78dced165d96a283321439bdbde608c7a1b68b9150f9d254e3a099d1·...·]-3">)</span><span·class="p">.</span><span·class="w"> |
| 240 | </span><span·class="ss">true</span><span·class="gp·unselectable"> | 240 | </span><span·class="ss">true</span><span·class="gp·unselectable"> |
| 241 | 2>·</span><span·class="c1">%%·Efficient·search·of·all·with·area·code·555</span><span·class="gp·unselectable"> | 241 | 2>·</span><span·class="c1">%%·Efficient·search·of·all·with·area·code·555</span><span·class="gp·unselectable"> |
| 242 | 2>·</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">match</span><span·class="p"·data-group-id=" | 242 | 2>·</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">match</span><span·class="p"·data-group-id="5778019486-5">(</span><span·class="n">T</span><span·class="p">,</span><span·class="p"·data-group-id="5778019486-6">{</span><span·class="p"·data-group-id="5778019486-7">[</span><span·class="sc">$5</span><span·class="p">,</span><span·class="sc">$5</span><spa[·...·truncated·by·diffoscope;·len:·387,·SHA:·949dcd9080b2628386aadc3378120adaf3e5ad9a67192d35a68cbdf25506897f·...·]-5">)</span><span·class="p">.</span><span·class="w"> |
| 243 | </span><span·class="p"·data-group-id=" | 243 | </span><span·class="p"·data-group-id="5778019486-8">[</span><span·class="p"·data-group-id="5778019486-9">[</span><span·class="s">"1234"</span><span·class="p">,</span><span·class="s">"John·Smith"</span><span·class="p"·data-group-id="5778019486-9">]</span><span·class="p"·data[·...·truncated·by·diffoscope;·len:·21,·SHA:·1f76f61a853c2727bf3c897b30f429a567832c7c2c757e58509198f6354ed215·...·]-8">]</span></code></pre><p><a·href=""·id="match_spec"></a></p><h2·id="module-match-specifications"·class="section-heading"> |
| 244 | ··<a·href="#module-match-specifications"·class="hover-link"> | 244 | ··<a·href="#module-match-specifications"·class="hover-link"> |
| 245 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 245 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 246 | ··</a> | 246 | ··</a> |
| 247 | ··<span·class="text">Match·Specifications</span> | 247 | ··<span·class="text">Match·Specifications</span> |
| 248 | </h2> | 248 | </h2> |
| 249 | <p>Some·of·the·functions·use·a·<em>match·specification</em>,·<code·class="inline">match_spec</code>.·For·a·brief | 249 | <p>Some·of·the·functions·use·a·<em>match·specification</em>,·<code·class="inline">match_spec</code>.·For·a·brief |
| 250 | explanation,·see·<a·href="#select/2"><code·class="inline">select/2</code></a>.·For·a·detailed·description,·see·section | 250 | explanation,·see·<a·href="#select/2"><code·class="inline">select/2</code></a>.·For·a·detailed·description,·see·section |
| Offset 1886, 27 lines modified | Offset 1886, 27 lines modified | ||
| 1886 | function.</p><p>The·parse·transform·is·provided·in·the·<code·class="inline">ms_transform</code>·module·and·the·source | 1886 | function.</p><p>The·parse·transform·is·provided·in·the·<code·class="inline">ms_transform</code>·module·and·the·source |
| 1887 | <em>must</em>·include·file·<code·class="inline">ms_transform.hrl</code>·in·STDLIB·for·this·pseudo·function·to | 1887 | <em>must</em>·include·file·<code·class="inline">ms_transform.hrl</code>·in·STDLIB·for·this·pseudo·function·to |
| 1888 | work.·Failing·to·include·the·hrl·file·in·the·source·results·in·a·runtime·error, | 1888 | work.·Failing·to·include·the·hrl·file·in·the·source·results·in·a·runtime·error, |
| 1889 | not·a·compile·time·error.·The·include·file·is·easiest·included·by·adding·line | 1889 | not·a·compile·time·error.·The·include·file·is·easiest·included·by·adding·line |
| 1890 | <code·class="inline">-include_lib("stdlib/include/ms_transform.hrl").</code>·to·the·source·file.</p><p>The·fun·is·very·restricted,·it·can·take·only·a·single·parameter·(the·object·to | 1890 | <code·class="inline">-include_lib("stdlib/include/ms_transform.hrl").</code>·to·the·source·file.</p><p>The·fun·is·very·restricted,·it·can·take·only·a·single·parameter·(the·object·to |
| 1891 | match):·a·sole·variable·or·a·tuple.·It·must·use·the·<code·class="inline">is_</code>·guard·tests.·Language | 1891 | match):·a·sole·variable·or·a·tuple.·It·must·use·the·<code·class="inline">is_</code>·guard·tests.·Language |
| 1892 | constructs·that·have·no·representation·in·a·match·specification·(<code·class="inline">if</code>,·<code·class="inline">case</code>, | 1892 | constructs·that·have·no·representation·in·a·match·specification·(<code·class="inline">if</code>,·<code·class="inline">case</code>, |
| 1893 | <code·class="inline">receive</code>,·and·so·on)·are·not·allowed.</p><p>The·return·value·is·the·resulting·match·specification.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">fun2ms</span><span·class="p"·data-group-id=" | 1893 | <code·class="inline">receive</code>,·and·so·on)·are·not·allowed.</p><p>The·return·value·is·the·resulting·match·specification.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">fun2ms</span><span·class="p"·data-group-id="9706528483-1">(</span><span·class="nf">fun</span><span·class="p"·data-group-id="9706528483-2">(</span><span·class="p"·data-group-id="9706528483-3">{</span><span·class="n">M</span><span·class="p">,</span><span·class="n">N</span><span·class="p"·data-group-id[·...·truncated·by·diffoscope;·len:·466,·SHA:·07a45b0268ba46ba71abc1e9423bfc5d5f74c45a2b23640e0711b95a041b39af·...·]3-1">)</span><span·class="p">.</span><span·class="w"> |
| 1894 | </span><span·class="p"·data-group-id=" | 1894 | </span><span·class="p"·data-group-id="9706528483-4">[</span><span·class="p"·data-group-id="9706528483-5">{</span><span·class="p"·data-group-id="9706528483-6">{</span><span·class="ss">'$1'</span><span·class="p">,</span><span·class="ss">'$2'</span><span·class="p"·data-group-id="9[·...·truncated·by·diffoscope;·len:·663,·SHA:·1b4a7f728536595e6d38567623f31969081c1acfb6c79910fa1be427371d7492·...·]3-4">]</span></code></pre><p>Variables·from·the·environment·can·be·imported,·so·that·the·following·works:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">2>·</span><span·class="n">X</span><span·class="o">=</span><span·class="mi">3</span><span·class="p">.</span><span·class="w"> |
| 1895 | </span><span·class="mi">3</span><span·class="gp·unselectable"> | 1895 | </span><span·class="mi">3</span><span·class="gp·unselectable"> |
| 1896 | 3>·</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">fun2ms</span><span·class="p"·data-group-id=" | 1896 | 3>·</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">fun2ms</span><span·class="p"·data-group-id="7974056065-1">(</span><span·class="nf">fun</span><span·class="p"·data-group-id="7974056065-2">(</span><span·class="p"·data-group-id="7974056065-3">{</span><span·class="n">M</span><span·class="p">,</span><span·class="n">N</span><span·class="p"·data-group-id[·...·truncated·by·diffoscope;·len:·466,·SHA:·f6439949400f27244ce8ad1a83915dee261ef15a16924f77cf812984597f1d5b·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 1897 | </span><span·class="p"·data-group-id=" | 1897 | </span><span·class="p"·data-group-id="7974056065-4">[</span><span·class="p"·data-group-id="7974056065-5">{</span><span·class="p"·data-group-id="7974056065-6">{</span><span·class="ss">'$1'</span><span·class="p">,</span><span·class="ss">'$2'</span><span·class="p"·data-group-id="7[·...·truncated·by·diffoscope;·len:·825,·SHA:·c9a7f040498815788a317404240279ff114d31c09ca84659af5074729461bd3f·...·]-4">]</span></code></pre><p>The·imported·variables·are·replaced·by·match·specification·<code·class="inline">const</code>·expressions, |
| 1898 | which·is·consistent·with·the·static·scoping·for·Erlang·funs.·However,·local·or | 1898 | which·is·consistent·with·the·static·scoping·for·Erlang·funs.·However,·local·or |
| 1899 | global·function·calls·cannot·be·in·the·guard·or·body·of·the·fun.·Calls·to | 1899 | global·function·calls·cannot·be·in·the·guard·or·body·of·the·fun.·Calls·to |
| 1900 | built-in·match·specification·functions·is·of·course·allowed:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">4>·</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">fun2ms</span><span·class="p"·data-group-id=" | 1900 | built-in·match·specification·functions·is·of·course·allowed:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">4>·</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">fun2ms</span><span·class="p"·data-group-id="7950511679-1">(</span><span·class="nf">fun</span><span·class="p"·data-group-id="7950511679-2">(</span><span·class="p"·data-group-id="7950511679-3">{</span><span·class="n">M</span><span·class="p">,</span><span·class="n">N</span><span·class="p"·data-group-id[·...·truncated·by·diffoscope;·len:·674,·SHA:·187c33a8d4fb90658cd20be55e43b6ce9ef6e42bf60ffdf277ae144cffa05b98·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 1901 | </span><span·class="n">Error</span><span·class="p">:</span><span·class="w">·</span><span·class="k">fun</span><span·class="w">·</span><span·class="ss">containing</span><span·class="w">·</span><span·class="ss">local</span><span·class="w">·</span><span·class="n">Erlang</span><span·class="w">·</span><span·class="ss">function</span><span·class="w">·</span><span·class="nf">calls</span><span·class="w"> | 1901 | </span><span·class="n">Error</span><span·class="p">:</span><span·class="w">·</span><span·class="k">fun</span><span·class="w">·</span><span·class="ss">containing</span><span·class="w">·</span><span·class="ss">local</span><span·class="w">·</span><span·class="n">Erlang</span><span·class="w">·</span><span·class="ss">function</span><span·class="w">·</span><span·class="nf">calls</span><span·class="w"> |
| 1902 | </span><span·class="p"·data-group-id=" | 1902 | </span><span·class="p"·data-group-id="7950511679-5">(</span><span·class="ss">'my_fun'</span><span·class="w">·</span><span·class="ss">called</span><span·class="w">·</span><span·class="ss">in</span><span·class="w">·</span><span·class="ss">guard</span><span·class="p"·data-group-id="795051[·...·truncated·by·diffoscope;·len:·4,·SHA:·b93e56aec7724213a91e5c44256af055313fc7e8d80554fb7ed23b866470695b·...·]-5">)</span><span·class="w">·</span><span·class="ss">cannot</span><span·class="w">·</span><span·class="ss">be</span><span·class="w">·</span><span·class="ss">translated</span><span·class="w">·</span><span·class="ss">into</span><span·class="w">·</span><span·class="ss">match_spec</span><span·class="w"> |
| 1903 | </span><span·class="p"·data-group-id=" | 1903 | </span><span·class="p"·data-group-id="7950511679-6">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="ss">transform_error</span><span·class="p"·data-group-id="7950511679-6">}</span><span·class="gp·unselectable"> |
| 1904 | 5>·</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">fun2ms</span><span·class="p"·data-group-id=" | 1904 | 5>·</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">fun2ms</span><span·class="p"·data-group-id="7950511679-7">(</span><span·class="nf">fun</span><span·class="p"·data-group-id="7950511679-8">(</span><span·class="p"·data-group-id="7950511679-9">{</span><span·class="n">M</span><span·class="p">,</span><span·class="n">N</span><span·class="p"·data-group-id[·...·truncated·by·diffoscope;·len:·677,·SHA:·3837da5822ee4f9be31820e60fc0f2dc2b50e788ebc28adeb3c1e38a4fc69d76·...·]-7">)</span><span·class="p">.</span><span·class="w"> |
| 1905 | </span><span·class="p"·data-group-id=" | 1905 | </span><span·class="p"·data-group-id="7950511679-11">[</span><span·class="p"·data-group-id="7950511679-12">{</span><span·class="p"·data-group-id="7950511679-13">{</span><span·class="ss">'$1'</span><span·class="p">,</span><span·class="ss">'$2'</span><span·class="p"·data-group-id[·...·truncated·by·diffoscope;·len:·1059,·SHA:·f205cd5310dc382ada9ab5429f15bc2933a81b142c433e8cf2fc35db9da1ee9f·...·]-11">]</span></code></pre><p>As·shown·by·the·example,·the·function·can·be·called·from·the·shell·also.·The·fun |
| 1906 | must·be·literally·in·the·call·when·used·from·the·shell·as·well.</p><section·role="note"·class="admonition·warning"><h4·class="admonition-title·warning">Warning</h4><p>If·the·<code·class="inline">parse_transform</code>·is·not·applied·to·a·module·that·calls·this·pseudo | 1906 | must·be·literally·in·the·call·when·used·from·the·shell·as·well.</p><section·role="note"·class="admonition·warning"><h4·class="admonition-title·warning">Warning</h4><p>If·the·<code·class="inline">parse_transform</code>·is·not·applied·to·a·module·that·calls·this·pseudo |
| 1907 | function,·the·call·fails·in·runtime·(with·a·<code·class="inline">badarg</code>).·The·<code·class="inline">ets</code>·module | 1907 | function,·the·call·fails·in·runtime·(with·a·<code·class="inline">badarg</code>).·The·<code·class="inline">ets</code>·module |
| 1908 | exports·a·function·with·this·name,·but·it·is·never·to·be·called·except·when | 1908 | exports·a·function·with·this·name,·but·it·is·never·to·be·called·except·when |
| 1909 | using·the·function·in·the·shell.·If·the·<code·class="inline">parse_transform</code>·is·properly·applied | 1909 | using·the·function·in·the·shell.·If·the·<code·class="inline">parse_transform</code>·is·properly·applied |
| 1910 | by·including·header·file·<code·class="inline">ms_transform.hrl</code>,·compiled·code·never·calls·the | 1910 | by·including·header·file·<code·class="inline">ms_transform.hrl</code>,·compiled·code·never·calls·the |
| 1911 | function,·but·the·function·call·is·replaced·by·a·literal·match·specification.</p></section><p>For·more·information,·see·<a·href="ms_transform.html"><code·class="inline">ms_transform</code></a>.</p> | 1911 | function,·but·the·function·call·is·replaced·by·a·literal·match·specification.</p></section><p>For·more·information,·see·<a·href="ms_transform.html"><code·class="inline">ms_transform</code></a>.</p> |
| 1912 | ··</section> | 1912 | ··</section> |
| Offset 2491, 20 lines modified | Offset 2491, 20 lines modified | ||
| 2491 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·match(Table,·Pattern)·->·[Match] | 2491 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·match(Table,·Pattern)·->·[Match] |
| 2492 | ···············when·Table·::·<a·href="#t:table/0">table</a>(),·Pattern·::·<a·href="#t:match_pattern/0">match_pattern</a>(),·Match·::·[<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>()].</pre> | 2492 | ···············when·Table·::·<a·href="#t:table/0">table</a>(),·Pattern·::·<a·href="#t:match_pattern/0">match_pattern</a>(),·Match·::·[<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>()].</pre> |
| 2493 | ······</div> | 2493 | ······</div> |
| 2494 | <p>Matches·the·objects·in·table·<code·class="inline">Table</code>·against·pattern·<code·class="inline">Pattern</code>.</p><p>A·pattern·is·a·term·that·can·contain:</p><ul><li>Bound·parts·(Erlang·terms)</li><li><code·class="inline">'_'</code>·that·matches·any·Erlang·term</li><li>Pattern·variables·<code·class="inline">'$N'</code>,·where·<code·class="inline">N</code>=0,1,...</li></ul><p>The·function·returns·a·list·with·one·element·for·each·matching·object,·where | 2494 | <p>Matches·the·objects·in·table·<code·class="inline">Table</code>·against·pattern·<code·class="inline">Pattern</code>.</p><p>A·pattern·is·a·term·that·can·contain:</p><ul><li>Bound·parts·(Erlang·terms)</li><li><code·class="inline">'_'</code>·that·matches·any·Erlang·term</li><li>Pattern·variables·<code·class="inline">'$N'</code>,·where·<code·class="inline">N</code>=0,1,...</li></ul><p>The·function·returns·a·list·with·one·element·for·each·matching·object,·where |
| 2495 | each·element·is·an·ordered·list·of·pattern·variable·bindings,·for·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">6>·</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">match</span><span·class="p"·data-group-id=" | 2495 | each·element·is·an·ordered·list·of·pattern·variable·bindings,·for·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">6>·</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">match</span><span·class="p"·data-group-id="1244561652-1">(</span><span·class="n">T</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">'$1'</span><span·class="p"·data-group-id="1244561652-1">)</span><span·class="p">.</span><span·class="w">·</span><span·class="c1">%·Matches·every·object·in·table</span><span·class="w"> |
| 2496 | </span><span·class="p"·data-group-id=" | 2496 | </span><span·class="p"·data-group-id="1244561652-2">[</span><span·class="p"·data-group-id="1244561652-3">[</span><span·class="p"·data-group-id="1244561652-4">{</span><span·class="ss">rufsen</span><span·class="p">,</span><span·class="ss">dog</span><span·class="p">,</span><span·class="mi">7</spa[·...·truncated·by·diffoscope;·len:·882,·SHA:·137b24873b2c3136f19f6698c8d326628d9cfa95b471123b65b8ea3ac8a01392·...·]-2">]</span><span·class="gp·unselectable"> |
| 2497 | 7>·</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">match</span><span·class="p"·data-group-id=" | 2497 | 7>·</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">match</span><span·class="p"·data-group-id="1244561652-9">(</span><span·class="n">T</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1244561652-10">{</span><span·class="ss">'_'</span><span·class="p">,</span><span·class="ss">dog</span><span·class="p">,</spa[·...·truncated·by·diffoscope;·len:·133,·SHA:·bc74e3ecd011767e72757fbdc9a7db7676c7daef3f828e3238303e9c6b871ffb·...·]-9">)</span><span·class="p">.</span><span·class="w"> |
| 2498 | </span><span·class="p"·data-group-id=" | 2498 | </span><span·class="p"·data-group-id="1244561652-11">[</span><span·class="p"·data-group-id="1244561652-12">[</span><span·class="mi">7</span><span·class="p"·data-group-id="1244561652-12">]</span><span·class="p">,</span><span·class="p"·data-group-id="1244561652-13">[</span><span·class="mi">5</sp[·...·truncated·by·diffoscope;·len:·98,·SHA:·8a97c8ef469a168dc9c7c6be333a4e320072ec7994993bbde6e76ff78832da88·...·]-11">]</span><span·class="gp·unselectable"> |
| 2499 | 8>·</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">match</span><span·class="p"·data-group-id=" | 2499 | 8>·</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">match</span><span·class="p"·data-group-id="1244561652-14">(</span><span·class="n">T</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1244561652-15">{</span><span·class="ss">'_'</span><span·class="p">,</span><span·class="ss">cow</span><span·class="p">,</sp[·...·truncated·by·diffoscope;·len:·134,·SHA:·0bf9d3cd40aa11950624d757c1fbd40618e4d66cfe543d8a044ef011582c6f3b·...·]-14">)</span><span·class="p">.</span><span·class="w"> |
| 2500 | </span><span·class="p"·data-group-id=" | 2500 | </span><span·class="p"·data-group-id="1244561652-16">[</span><span·class="p"·data-group-id="1244561652-16">]</span></code></pre><p>If·the·key·is·specified·in·the·pattern,·the·match·is·very·efficient.·If·the·key |
| 2501 | is·not·specified,·that·is,·if·it·is·a·variable·or·an·underscore,·the·entire | 2501 | is·not·specified,·that·is,·if·it·is·a·variable·or·an·underscore,·the·entire |
| 2502 | table·must·be·searched.·The·search·time·can·be·substantial·if·the·table·is·very | 2502 | table·must·be·searched.·The·search·time·can·be·substantial·if·the·table·is·very |
| 2503 | large.</p><p>For·tables·of·type·<code·class="inline">ordered_set</code>,·the·result·is·in·the·same·order·as·in·a | 2503 | large.</p><p>For·tables·of·type·<code·class="inline">ordered_set</code>,·the·result·is·in·the·same·order·as·in·a |
| 2504 | <code·class="inline">first</code>/<code·class="inline">next</code>·traversal.</p> | 2504 | <code·class="inline">first</code>/<code·class="inline">next</code>·traversal.</p> |
| 2505 | ··</section> | 2505 | ··</section> |
| 2506 | </section> | 2506 | </section> |
| 2507 | <section·class="detail"·id="match/3"> | 2507 | <section·class="detail"·id="match/3"> |
| Offset 2734, 18 lines modified | Offset 2734, 18 lines modified | ||
| 2734 | use.</p><p>The·matching·is·executed·on·each·element·in·<code·class="inline">List</code>·and·the·function·returns·a | 2734 | use.</p><p>The·matching·is·executed·on·each·element·in·<code·class="inline">List</code>·and·the·function·returns·a |
| 2735 | list·containing·all·results.·If·an·element·in·<code·class="inline">List</code>·does·not·match,·nothing·is | 2735 | list·containing·all·results.·If·an·element·in·<code·class="inline">List</code>·does·not·match,·nothing·is |
| 2736 | returned·for·that·element.·The·length·of·the·result·list·is·therefore·equal·or | 2736 | returned·for·that·element.·The·length·of·the·result·list·is·therefore·equal·or |
| 2737 | less·than·the·length·of·parameter·<code·class="inline">List</code>.</p><p><em>Example:</em></p><p>The·following·two·calls·give·the·same·result·(but·certainly·not·the·same | 2737 | less·than·the·length·of·parameter·<code·class="inline">List</code>.</p><p><em>Example:</em></p><p>The·following·two·calls·give·the·same·result·(but·certainly·not·the·same |
| 2738 | execution·time):</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Table</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">ets</span><span·class="p">:</span><span·class="ss">new</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> | 2738 | execution·time):</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Table</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">ets</span><span·class="p">:</span><span·class="ss">new</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> |
| 2739 | </span><span·class="n">MatchSpec</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> | 2739 | </span><span·class="n">MatchSpec</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> |
| 2740 | </span><span·class="c1">%·The·following·call...</span><span·class="w"> | 2740 | </span><span·class="c1">%·The·following·call...</span><span·class="w"> |
| 2741 | </span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">match_spec_run</span><span·class="p"·data-group-id=" | 2741 | </span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">match_spec_run</span><span·class="p"·data-group-id="7324413281-1">(</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">tab2list</span><span·class="p"·data-group-id="7324413281-2">(</span><span·class="n">Table</span><span·class="p"·data-group-id="7324413281-2">)</span><span·class="p">,</span><span·class="w"> |
| 2742 | ···················</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">match_spec_compile</span><span·class="p"·data-group-id=" | 2742 | ···················</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">match_spec_compile</span><span·class="p"·data-group-id="7324413281-3">(</span><span·class="n">MatchSpec</span><span·class="p"·data-group-id="7324413281-3">)</span><span·class="p"·data-group-id="7324413281-1">)</span><span·class="p">,</span><span·class="w"> |
| 2743 | </span><span·class="c1">%·...gives·the·same·result·as·the·more·common·(and·more·efficient)</span><span·class="w"> | 2743 | </span><span·class="c1">%·...gives·the·same·result·as·the·more·common·(and·more·efficient)</span><span·class="w"> |
| 2744 | </span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">select</span><span·class="p"·data-group-id=" | 2744 | </span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">select</span><span·class="p"·data-group-id="7324413281-4">(</span><span·class="n">Table</span><span·class="p">,</span><span·class="w">·</span><span·class="n">MatchSpec</span><span·class="p"·data-group-id="7324413281-4">)</span><span·class="p">,</span></code></pre><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>This·function·has·limited·use·in·normal·code.·It·is·used·by·the·<a·href="dets.html"><code·class="inline">dets</code></a> |
| 2745 | module·to·perform·the·<a·href="dets.html#select/1"><code·class="inline">dets:select/1</code></a>·operations·and·by·Mnesia·during | 2745 | module·to·perform·the·<a·href="dets.html#select/1"><code·class="inline">dets:select/1</code></a>·operations·and·by·Mnesia·during |
| 2746 | transactions.</p></section> | 2746 | transactions.</p></section> |
| 2747 | ··</section> | 2747 | ··</section> |
| 2748 | </section> | 2748 | </section> |
| 2749 | <section·class="detail"·id="member/2"> | 2749 | <section·class="detail"·id="member/2"> |
| 2750 | ··<div·class="detail-header"> | 2750 | ··<div·class="detail-header"> |
| Offset 3089, 27 lines modified | Offset 3089, 27 lines modified | ||
| 3089 | <p>Restores·an·opaque·continuation·returned·by·<a·href="#select/3"><code·class="inline">select/3</code></a>·or·<a·href="#select/1"><code·class="inline">select/1</code></a>·if·the | 3089 | <p>Restores·an·opaque·continuation·returned·by·<a·href="#select/3"><code·class="inline">select/3</code></a>·or·<a·href="#select/1"><code·class="inline">select/1</code></a>·if·the |
| 3090 | continuation·has·passed·through·external·term·format·(been·sent·between·nodes·or | 3090 | continuation·has·passed·through·external·term·format·(been·sent·between·nodes·or |
| 3091 | stored·on·disk).</p><p>The·reason·for·this·function·is·that·continuation·terms·contain·compiled·match | 3091 | stored·on·disk).</p><p>The·reason·for·this·function·is·that·continuation·terms·contain·compiled·match |
| 3092 | specifications·and·may·therefore·be·invalidated·if·converted·to·external·term | 3092 | specifications·and·may·therefore·be·invalidated·if·converted·to·external·term |
| 3093 | format.·Given·that·the·original·match·specification·is·kept·intact,·the | 3093 | format.·Given·that·the·original·match·specification·is·kept·intact,·the |
| 3094 | continuation·can·be·restored,·meaning·it·can·once·again·be·used·in·subsequent | 3094 | continuation·can·be·restored,·meaning·it·can·once·again·be·used·in·subsequent |
| 3095 | <a·href="#select/1"><code·class="inline">select/1</code></a>·calls·even·though·it·has·been·stored·on·disk·or·on | 3095 | <a·href="#select/1"><code·class="inline">select/1</code></a>·calls·even·though·it·has·been·stored·on·disk·or·on |
| 3096 | another·node.</p><p><em>Examples:</em></p><p>The·following·sequence·of·calls·may·fail:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">T</span><span·class="o">=</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">new</span><span·class="p"·data-group-id=" | 3096 | another·node.</p><p><em>Examples:</em></p><p>The·following·sequence·of·calls·may·fail:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">T</span><span·class="o">=</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">new</span><span·class="p"·data-group-id="9437037580-1">(</span><span·class="ss">x</span><span·class="p">,</span><span·class="p"·data-group-id="9437037580-2">[</span><span·class="p"·data-group-id="9437037580-2">]</span><span·class="p"·data-group-id="9437037580-1">)</span><span·class="p">,</span><span·class="w"> |
| 3097 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> | 3097 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> |
| 3098 | </span><span·class="n">MS</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">fun2ms</span><span·class="p"·data-group-id=" | 3098 | </span><span·class="n">MS</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">fun2ms</span><span·class="p"·data-group-id="9437037580-3">(</span><span·class="nf">fun</span><span·class="p"·data-group-id="9437037580-4">(</span><span·class="p"·data-group-id="9437037580-5">{</span><span·class="n">N</span><span·class="p">,</span><span·class="p">_</span><span·class="p"·data-group-id[·...·truncated·by·diffoscope;·len:·722,·SHA:·cc8f894eff6c9be3bef27773e32a04acfbef2dd47c56f201f35d1e30bf3a09ec·...·]-3">)</span><span·class="p">,</span><span·class="w"> |
| 3099 | </span><span·class="p"·data-group-id=" | 3099 | </span><span·class="p"·data-group-id="9437037580-7">{</span><span·class="p">_</span><span·class="p">,</span><span·class="n">C</span><span·class="p"·data-group-id="9437037580-7">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">ets</span><span·clas[·...·truncated·by·diffoscope;·len:·309,·SHA:·48641848ff3b79af30746e2a97178cdd226f20f3517b3c23dc7e323f22cb816a·...·]-8">)</span><span·class="p">,</span><span·class="w"> |
| 3100 | </span><span·class="n">MaybeBroken</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">binary_to_term</span><span·class="p"·data-group-id=" | 3100 | </span><span·class="n">MaybeBroken</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">binary_to_term</span><span·class="p"·data-group-id="9437037580-9">(</span><span·class="nf">term_to_binary</span><span·class="p"·data-group-id="9437037580-10">(</span><span·class="n">C</span><span·class="p"·data-group-id="9437037580-10">)</span><span·class="p"·data-group-id="9437037580-9">)</span><span·class="p">,</span><span·class="w"> |
| 3101 | </span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">select</span><span·class="p"·data-group-id=" | 3101 | </span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">select</span><span·class="p"·data-group-id="9437037580-11">(</span><span·class="n">MaybeBroken</span><span·class="p"·data-group-id="9437037580-11">)</span><span·class="p">.</span></code></pre><p>The·following·sequence·works,·as·the·call·to |
| 3102 | <a·href="#repair_continuation/2"><code·class="inline">repair_continuation/2</code></a>·reestablishes·the | 3102 | <a·href="#repair_continuation/2"><code·class="inline">repair_continuation/2</code></a>·reestablishes·the |
| 3103 | <code·class="inline">MaybeBroken</code>·continuation.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">T</span><span·class="o">=</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">new</span><span·class="p"·data-group-id=" | 3103 | <code·class="inline">MaybeBroken</code>·continuation.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">T</span><span·class="o">=</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">new</span><span·class="p"·data-group-id="6646805207-1">(</span><span·class="ss">x</span><span·class="p">,</span><span·class="p"·data-group-id="6646805207-2">[</span><span·class="p"·data-group-id="6646805207-2">]</span><span·class="p"·data-group-id="6646805207-1">)</span><span·class="p">,</span><span·class="w"> |
| 3104 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> | 3104 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> |
| 3105 | </span><span·class="n">MS</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">fun2ms</span><span·class="p"·data-group-id=" | 3105 | </span><span·class="n">MS</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">fun2ms</span><span·class="p"·data-group-id="6646805207-3">(</span><span·class="nf">fun</span><span·class="p"·data-group-id="6646805207-4">(</span><span·class="p"·data-group-id="6646805207-5">{</span><span·class="n">N</span><span·class="p">,</span><span·class="p">_</span><span·class="p"·data-group-id[·...·truncated·by·diffoscope;·len:·722,·SHA:·707979a963fa89bf538bd241f51a483e7dc6389a7dddc63abbc45a085d4fcce2·...·]-3">)</span><span·class="p">,</span><span·class="w"> |
| 3106 | </span><span·class="p"·data-group-id=" | 3106 | </span><span·class="p"·data-group-id="6646805207-7">{</span><span·class="p">_</span><span·class="p">,</span><span·class="n">C</span><span·class="p"·data-group-id="6646805207-7">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">ets</span><span·clas[·...·truncated·by·diffoscope;·len:·261,·SHA:·d7c9d7692d9552e0ae88faa9db2cb4465d9c6485b230bb4f08b7147f89fc9f8e·...·]-8">)</span><span·class="p">,</span><span·class="w"> |
| 3107 | </span><span·class="n">MaybeBroken</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">binary_to_term</span><span·class="p"·data-group-id=" | 3107 | </span><span·class="n">MaybeBroken</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">binary_to_term</span><span·class="p"·data-group-id="6646805207-9">(</span><span·class="nf">term_to_binary</span><span·class="p"·data-group-id="6646805207-10">(</span><span·class="n">C</span><span·class="p"·data-group-id="6646805207-10">)</span><span·class="p"·data-group-id="6646805207-9">)</span><span·class="p">,</span><span·class="w"> |
| 3108 | </span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">select</span><span·class="p"·data-group-id=" | 3108 | </span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">select</span><span·class="p"·data-group-id="6646805207-11">(</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">repair_continuation</span><span·class="p"·data-group-id="6646805207-12">(</span><span·class="n">MaybeBroken</span><span·class="p">,</span><span·class="n">MS</span><s[·...·truncated·by·diffoscope;·len:·93,·SHA:·ff2e6b8cf39b995f8f018bb292ea7a177260a07171f758f3f2b56c3c00347317·...·]-11">)</span><span·class="p">.</span></code></pre><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>This·function·is·rarely·needed·in·application·code.·It·is·used·by·Mnesia·to |
| 3109 | provide·distributed·<a·href="#select/3"><code·class="inline">select/3</code></a>·and·<a·href="#select/1"><code·class="inline">select/1</code></a> | 3109 | provide·distributed·<a·href="#select/3"><code·class="inline">select/3</code></a>·and·<a·href="#select/1"><code·class="inline">select/1</code></a> |
| 3110 | sequences.·A·normal·application·would·either·use·Mnesia·or·keep·the | 3110 | sequences.·A·normal·application·would·either·use·Mnesia·or·keep·the |
| 3111 | continuation·from·being·converted·to·external·format.</p><p>The·actual·behavior·of·compiled·match·specifications·when·recreated·from | 3111 | continuation·from·being·converted·to·external·format.</p><p>The·actual·behavior·of·compiled·match·specifications·when·recreated·from |
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| 191 | function·has·been·applied·to·all·of·the·results·or·an·error·occurs,·the·last | 191 | function·has·been·applied·to·all·of·the·results·or·an·error·occurs,·the·last |
| 192 | function·is·called·with·argument·<code·class="inline">close</code>,·and·the·reply·is·returned·as·value·of | 192 | function·is·called·with·argument·<code·class="inline">close</code>,·and·the·reply·is·returned·as·value·of |
| 193 | the·current·call·to·the·sort·or·merge·function.</p><p>If·a·function·is·specified·as·input·and·the·last·input·function·returns | 193 | the·current·call·to·the·sort·or·merge·function.</p><p>If·a·function·is·specified·as·input·and·the·last·input·function·returns |
| 194 | <code·class="inline">{end_of_input,·Value}</code>,·the·function·specified·as·output·is·called·with | 194 | <code·class="inline">{end_of_input,·Value}</code>,·the·function·specified·as·output·is·called·with |
| 195 | argument·<code·class="inline">{value,·Value}</code>.·This·makes·it·easy·to·initiate·the·sequence·of·output | 195 | argument·<code·class="inline">{value,·Value}</code>.·This·makes·it·easy·to·initiate·the·sequence·of·output |
| 196 | functions·with·a·value·calculated·by·the·input·functions.</p><p>As·an·example,·consider·sorting·the·terms·on·a·disk·log·file.·A·function·that | 196 | functions·with·a·value·calculated·by·the·input·functions.</p><p>As·an·example,·consider·sorting·the·terms·on·a·disk·log·file.·A·function·that |
| 197 | reads·chunks·from·the·disk·log·and·returns·a·list·of·binaries·is·used·as·input. | 197 | reads·chunks·from·the·disk·log·and·returns·a·list·of·binaries·is·used·as·input. |
| 198 | The·results·are·collected·in·a·list·of·terms.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">sort</span><span·class="p"·data-group-id=" | 198 | The·results·are·collected·in·a·list·of·terms.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">sort</span><span·class="p"·data-group-id="0513463633-1">(</span><span·class="n">Log</span><span·class="p"·data-group-id="0513463633-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 199 | ····</span><span·class="p"·data-group-id=" | 199 | ····</span><span·class="p"·data-group-id="0513463633-2">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="p"·data-group-id="0513463633-2">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class[·...·truncated·by·diffoscope;·len:·696,·SHA:·3ff4234eb7ed80fe1bf5f634d0810214cb8149c3299a98af60701d0414322427·...·]-3">)</span><span·class="p">,</span><span·class="w"> |
| 200 | ····</span><span·class="n">Input</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">input</span><span·class="p"·data-group-id=" | 200 | ····</span><span·class="n">Input</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">input</span><span·class="p"·data-group-id="0513463633-7">(</span><span·class="n">Log</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">start</span><span·class="p"·data-group-id="0513463633-7">)</span><span·class="p">,</span><span·class="w"> |
| 201 | ····</span><span·class="n">Output</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">output</span><span·class="p"·data-group-id=" | 201 | ····</span><span·class="n">Output</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">output</span><span·class="p"·data-group-id="0513463633-8">(</span><span·class="p"·data-group-id="0513463633-9">[</span><span·class="p"·data-group-id="0513463633-9">]</span><span·class="p"·data-group-id="0513463633-8">)</span><span·class="p">,</span><span·class="w"> |
| 202 | ····</span><span·class="n">Reply</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">file_sorter</span><span·class="p">:</span><span·class="nf">sort</span><span·class="p"·data-group-id=" | 202 | ····</span><span·class="n">Reply</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">file_sorter</span><span·class="p">:</span><span·class="nf">sort</span><span·class="p"·data-group-id="0513463633-10">(</span><span·class="n">Input</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Output</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0513463633-11">{</span><span·class="ss">format</s[·...·truncated·by·diffoscope;·len:·151,·SHA:·ea2f7bb1945a35b1ad099428d0a638fa3599e1bde1065b5856b7cffb80b1e68e·...·]-10">)</span><span·class="p">,</span><span·class="w"> |
| 203 | ····</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">disk_log</span><span·class="p">:</span><span·class="nf">close</span><span·class="p"·data-group-id=" | 203 | ····</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">disk_log</span><span·class="p">:</span><span·class="nf">close</span><span·class="p"·data-group-id="0513463633-12">(</span><span·class="n">Log</span><span·class="p"·data-group-id="0513463633-12">)</span><span·class="p">,</span><span·class="w"> |
| 204 | ····</span><span·class="n">Reply</span><span·class="p">.</span><span·class="w"> | 204 | ····</span><span·class="n">Reply</span><span·class="p">.</span><span·class="w"> |
| 205 | </span><span·class="nf">input</span><span·class="p"·data-group-id=" | 205 | </span><span·class="nf">input</span><span·class="p"·data-group-id="0513463633-13">(</span><span·class="n">Log</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Cont</span><span·class="p"·data-group-id="0513463633-13">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 206 | ····</span><span·class="nf">fun</span><span·class="p"·data-group-id=" | 206 | ····</span><span·class="nf">fun</span><span·class="p"·data-group-id="0513463633-14">(</span><span·class="ss">close</span><span·class="p"·data-group-id="0513463633-14">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 207 | ············</span><span·class="ss">ok</span><span·class="p">;</span><span·class="w"> | 207 | ············</span><span·class="ss">ok</span><span·class="p">;</span><span·class="w"> |
| 208 | ·······</span><span·class="p"·data-group-id=" | 208 | ·······</span><span·class="p"·data-group-id="0513463633-15">(</span><span·class="ss">read</span><span·class="p"·data-group-id="0513463633-15">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 209 | ············</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">disk_log</span><span·class="p">:</span><span·class="nf">chunk</span><span·class="p"·data-group-id=" | 209 | ············</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">disk_log</span><span·class="p">:</span><span·class="nf">chunk</span><span·class="p"·data-group-id="0513463633-16">(</span><span·class="n">Log</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Cont</span><span·class="p"·data-group-id="0513463633-16">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 210 | ················</span><span·class="p"·data-group-id=" | 210 | ················</span><span·class="p"·data-group-id="0513463633-17">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Reason</span><span·class="p"·data-group-id="0513463633-17">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 211 | ····················</span><span·class="p"·data-group-id=" | 211 | ····················</span><span·class="p"·data-group-id="0513463633-18">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Reason</span><span·class="p"·data-group-id="0513463633-18">}</span><span·class="p">;</span><span·class="w"> |
| 212 | ················</span><span·class="p"·data-group-id=" | 212 | ················</span><span·class="p"·data-group-id="0513463633-19">{</span><span·class="n">Cont2</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Terms</span><span·class="p"·data-group-id="0513463633-19">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 213 | ····················</span><span·class="p"·data-group-id=" | 213 | ····················</span><span·class="p"·data-group-id="0513463633-20">{</span><span·class="n">Terms</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">input</span><span·class="p"·data-group-id="0513463633-21">(</span><span·class="n">Log</span><span·class="p">,</span><span·class="w">·</span>[·...·truncated·by·diffoscope;·len:·123,·SHA:·3aa41e431c9141db023a1aa5a1e104e05f851988bb37249c68aa3c574bf03ec3·...·]-20">}</span><span·class="p">;</span><span·class="w"> |
| 214 | ················</span><span·class="p"·data-group-id=" | 214 | ················</span><span·class="p"·data-group-id="0513463633-22">{</span><span·class="n">Cont2</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Terms</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="n">Badbytes</span><span·class="p"·data-group[·...·truncated·by·diffoscope;·len:·15,·SHA:·da1d73f7a5c252093881bb9e4648906220667f48385d9633214d77f6a8bbb466·...·]-22">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 215 | ····················</span><span·class="p"·data-group-id=" | 215 | ····················</span><span·class="p"·data-group-id="0513463633-23">{</span><span·class="n">Terms</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">input</span><span·class="p"·data-group-id="0513463633-24">(</span><span·class="n">Log</span><span·class="p">,</span><span·class="w">·</span>[·...·truncated·by·diffoscope;·len:·123,·SHA:·2583262f1f59084ba366f0758e02c392d127a0723d87d2b6df123c2e4f2f3a0b·...·]-23">}</span><span·class="p">;</span><span·class="w"> |
| 216 | ················</span><span·class="ss">eof</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 216 | ················</span><span·class="ss">eof</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 217 | ····················</span><span·class="ss">end_of_input</span><span·class="w"> | 217 | ····················</span><span·class="ss">end_of_input</span><span·class="w"> |
| 218 | ············</span><span·class="k">end</span><span·class="w"> | 218 | ············</span><span·class="k">end</span><span·class="w"> |
| 219 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> | 219 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> |
| 220 | </span><span·class="nf">output</span><span·class="p"·data-group-id=" | 220 | </span><span·class="nf">output</span><span·class="p"·data-group-id="0513463633-25">(</span><span·class="n">L</span><span·class="p"·data-group-id="0513463633-25">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 221 | ····</span><span·class="nf">fun</span><span·class="p"·data-group-id=" | 221 | ····</span><span·class="nf">fun</span><span·class="p"·data-group-id="0513463633-26">(</span><span·class="ss">close</span><span·class="p"·data-group-id="0513463633-26">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 222 | ············</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">append</span><span·class="p"·data-group-id=" | 222 | ············</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">append</span><span·class="p"·data-group-id="0513463633-27">(</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">reverse</span><span·class="p"·data-group-id="0513463633-28">(</span><span·class="n">L</span><span·class="p"·data-group-id="0513463633-28">)</span><span·class="p"·d[·...·truncated·by·diffoscope;·len:·24,·SHA:·07675cdf620edde66d69d48d71ef7cace58c7ad467586d3ca14429bda2445efa·...·]-27">)</span><span·class="p">;</span><span·class="w"> |
| 223 | ·······</span><span·class="p"·data-group-id=" | 223 | ·······</span><span·class="p"·data-group-id="0513463633-29">(</span><span·class="n">Terms</span><span·class="p"·data-group-id="0513463633-29">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 224 | ············</span><span·class="nf">output</span><span·class="p"·data-group-id=" | 224 | ············</span><span·class="nf">output</span><span·class="p"·data-group-id="0513463633-30">(</span><span·class="p"·data-group-id="0513463633-31">[</span><span·class="n">Terms</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="n">L</span><span·class="p"·data-group-id="0513463633-31">]</span><[·...·truncated·by·diffoscope;·len:·40,·SHA:·156b59876b858d06fbdb7eda12ee865f8b508f7c34953667b085b44d18730ca6·...·]-30">)</span><span·class="w"> |
| 225 | ····</span><span·class="k">end</span><span·class="p">.</span></code></pre><p>For·more·examples·of·functions·as·input·and·output,·see·the·end·of·the | 225 | ····</span><span·class="k">end</span><span·class="p">.</span></code></pre><p>For·more·examples·of·functions·as·input·and·output,·see·the·end·of·the |
| 226 | <code·class="inline">file_sorter</code>·module;·the·<code·class="inline">term</code>·format·is·implemented·with·functions.</p><p>The·possible·values·of·<code·class="inline">Reason</code>·returned·when·an·error·occurs·are:</p><ul><li><code·class="inline">bad_object</code>,·<code·class="inline">{bad_object,·FileName}</code>·-·Applying·the·format·function·failed | 226 | <code·class="inline">file_sorter</code>·module;·the·<code·class="inline">term</code>·format·is·implemented·with·functions.</p><p>The·possible·values·of·<code·class="inline">Reason</code>·returned·when·an·error·occurs·are:</p><ul><li><code·class="inline">bad_object</code>,·<code·class="inline">{bad_object,·FileName}</code>·-·Applying·the·format·function·failed |
| 227 | for·some·binary,·or·the·key(s)·could·not·be·extracted·from·some·term.</li><li><code·class="inline">{bad_term,·FileName}</code>·-·<a·href="io.html#read/2"><code·class="inline">io:read/2</code></a>·failed·to·read·some·term.</li><li><code·class="inline">{file_error,·FileName,·file:posix()}</code>·-·For·an·explanation·of | 227 | for·some·binary,·or·the·key(s)·could·not·be·extracted·from·some·term.</li><li><code·class="inline">{bad_term,·FileName}</code>·-·<a·href="io.html#read/2"><code·class="inline">io:read/2</code></a>·failed·to·read·some·term.</li><li><code·class="inline">{file_error,·FileName,·file:posix()}</code>·-·For·an·explanation·of |
| 228 | <a·href="../../../../lib/kernel-10.3/doc/html/file.html#t:posix/0"><code·class="inline">file:posix()</code></a>,·see·<a·href="../../../../lib/kernel-10.3/doc/html/file.html"><code·class="inline">file</code></a>.</li><li><code·class="inline">{premature_eof,·FileName}</code>·-·End-of-file·was·encountered·inside·some·binary | 228 | <a·href="../../../../lib/kernel-10.3/doc/html/file.html#t:posix/0"><code·class="inline">file:posix()</code></a>,·see·<a·href="../../../../lib/kernel-10.3/doc/html/file.html"><code·class="inline">file</code></a>.</li><li><code·class="inline">{premature_eof,·FileName}</code>·-·End-of-file·was·encountered·inside·some·binary |
| 229 | term.</li></ul> | 229 | term.</li></ul> |
| 230 | ····</section> | 230 | ····</section> |
| Offset 1830, 15 lines modified | Offset 1830, 15 lines modified | ||
| 1830 | ······<p·class="built-using"> | 1830 | ······<p·class="built-using"> |
| 1831 | ········Built·using | 1831 | ········Built·using |
| 1832 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1832 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1833 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1833 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1834 | ······</p> | 1834 | ······</p> |
| 1835 | <p>Copyright·©·1996-202 | 1835 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1836 | ····</footer> | 1836 | ····</footer> |
| 1837 | ··</div> | 1837 | ··</div> |
| 1838 | </main> | 1838 | </main> |
| 1839 | </div> | 1839 | </div> |
| 1840 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1840 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1841 | ··<script> | 1841 | ··<script> |
| 1842 | ··let·initialized·=·false; | 1842 | ··let·initialized·=·false; |
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| 986 | ································Cwd·::·<a·href="#t:filename_all/0">filename_all</a>(), | 986 | ································Cwd·::·<a·href="#t:filename_all/0">filename_all</a>(), |
| 987 | ································SafeFilename·::·<a·href="#t:filename_all/0">filename_all</a>().</pre> | 987 | ································SafeFilename·::·<a·href="#t:filename_all/0">filename_all</a>().</pre> |
| 988 | ······</div> | 988 | ······</div> |
| 989 | <p>Sanitizes·the·relative·path·by·eliminating·".."·and·"."·components·to·protect | 989 | <p>Sanitizes·the·relative·path·by·eliminating·".."·and·"."·components·to·protect |
| 990 | against·directory·traversal·attacks.</p><p>Either·returns·the·sanitized·path·name,·or·the·atom·<code·class="inline">unsafe</code>·if·the·path·is·unsafe. | 990 | against·directory·traversal·attacks.</p><p>Either·returns·the·sanitized·path·name,·or·the·atom·<code·class="inline">unsafe</code>·if·the·path·is·unsafe. |
| 991 | The·path·is·considered·unsafe·in·the·following·circumstances:</p><ul><li>The·path·is·not·relative.</li><li>A·".."·component·would·climb·up·above·the·root·of·the·relative·path.</li><li>A·symbolic·link·in·the·path·points·above·the·root·of·the·relative·path.</li></ul><p><em>Examples:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="p"·data-group-id=" | 991 | The·path·is·considered·unsafe·in·the·following·circumstances:</p><ul><li>The·path·is·not·relative.</li><li>A·".."·component·would·climb·up·above·the·root·of·the·relative·path.</li><li>A·symbolic·link·in·the·path·points·above·the·root·of·the·relative·path.</li></ul><p><em>Examples:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="p"·data-group-id="9102371419-1">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Cwd</span><span·class="p"·data-group-id="9102371419-1">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·cla[·...·truncated·by·diffoscope;·len:·168,·SHA:·cc906536913695cac14be0fdf4968138bbbf827c64666ac1303f9a85586d363f·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 992 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="gp·unselectable"> | 992 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="gp·unselectable"> |
| 993 | 2>·</span><span·class="nc">filelib</span><span·class="p">:</span><span·class="nf">safe_relative_path</span><span·class="p"·data-group-id=" | 993 | 2>·</span><span·class="nc">filelib</span><span·class="p">:</span><span·class="nf">safe_relative_path</span><span·class="p"·data-group-id="9102371419-3">(</span><span·class="s">"dir/sub_dir/.."</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Cwd</span><span·class="p"·data-group-id="9102371419-3">)</span><span·class="p">.</span><span·class="w"> |
| 994 | </span><span·class="s">"dir"</span><span·class="gp·unselectable"> | 994 | </span><span·class="s">"dir"</span><span·class="gp·unselectable"> |
| 995 | 3>·</span><span·class="nc">filelib</span><span·class="p">:</span><span·class="nf">safe_relative_path</span><span·class="p"·data-group-id=" | 995 | 3>·</span><span·class="nc">filelib</span><span·class="p">:</span><span·class="nf">safe_relative_path</span><span·class="p"·data-group-id="9102371419-4">(</span><span·class="s">"dir/.."</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Cwd</span><span·class="p"·data-group-id="9102371419-4">)</span><span·class="p">.</span><span·class="w"> |
| 996 | </span><span·class="p"·data-group-id=" | 996 | </span><span·class="p"·data-group-id="9102371419-5">[</span><span·class="p"·data-group-id="9102371419-5">]</span><span·class="gp·unselectable"> |
| 997 | 4>·</span><span·class="nc">filelib</span><span·class="p">:</span><span·class="nf">safe_relative_path</span><span·class="p"·data-group-id=" | 997 | 4>·</span><span·class="nc">filelib</span><span·class="p">:</span><span·class="nf">safe_relative_path</span><span·class="p"·data-group-id="9102371419-6">(</span><span·class="s">"dir/../.."</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Cwd</span><span·class="p"·data-group-id="9102371419-6">)</span><span·class="p">.</span><span·class="w"> |
| 998 | </span><span·class="ss">unsafe</span><span·class="gp·unselectable"> | 998 | </span><span·class="ss">unsafe</span><span·class="gp·unselectable"> |
| 999 | 5>·</span><span·class="nc">filelib</span><span·class="p">:</span><span·class="nf">safe_relative_path</span><span·class="p"·data-group-id=" | 999 | 5>·</span><span·class="nc">filelib</span><span·class="p">:</span><span·class="nf">safe_relative_path</span><span·class="p"·data-group-id="9102371419-7">(</span><span·class="s">"/abs/path"</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Cwd</span><span·class="p"·data-group-id="9102371419-7">)</span><span·class="p">.</span><span·class="w"> |
| 1000 | </span><span·class="ss">unsafe</span></code></pre> | 1000 | </span><span·class="ss">unsafe</span></code></pre> |
| 1001 | ··</section> | 1001 | ··</section> |
| 1002 | </section> | 1002 | </section> |
| 1003 | <section·class="detail"·id="wildcard/1"> | 1003 | <section·class="detail"·id="wildcard/1"> |
| 1004 | ··<div·class="detail-header"> | 1004 | ··<div·class="detail-header"> |
| 1005 | ····<a·href="#wildcard/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 1005 | ····<a·href="#wildcard/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| Offset 1090, 15 lines modified | Offset 1090, 15 lines modified | ||
| 1090 | ······<p·class="built-using"> | 1090 | ······<p·class="built-using"> |
| 1091 | ········Built·using | 1091 | ········Built·using |
| 1092 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1092 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1093 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1093 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1094 | ······</p> | 1094 | ······</p> |
| 1095 | <p>Copyright·©·1996-202 | 1095 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1096 | ····</footer> | 1096 | ····</footer> |
| 1097 | ··</div> | 1097 | ··</div> |
| 1098 | </main> | 1098 | </main> |
| 1099 | </div> | 1099 | </div> |
| 1100 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1100 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1101 | ··<script> | 1101 | ··<script> |
| 1102 | ··let·initialized·=·false; | 1102 | ··let·initialized·=·false; |
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| 514 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·absname(Filename)·->·<a·href="../../../../lib/kernel-10.3/doc/html/file.html#t:filename_all/0">file:filename_all</a>()·when·Filename·::·<a·href="../../../../lib/kernel-10.3/doc/html/file.html#t:name_all/0">file:name_all</a>().</pre> | 514 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·absname(Filename)·->·<a·href="../../../../lib/kernel-10.3/doc/html/file.html#t:filename_all/0">file:filename_all</a>()·when·Filename·::·<a·href="../../../../lib/kernel-10.3/doc/html/file.html#t:name_all/0">file:name_all</a>().</pre> |
| 515 | ······</div> | 515 | ······</div> |
| 516 | <p>Converts·a·relative·<code·class="inline">Filename</code>·and·returns·an·absolute·name.·No·attempt·is·made | 516 | <p>Converts·a·relative·<code·class="inline">Filename</code>·and·returns·an·absolute·name.·No·attempt·is·made |
| 517 | to·create·the·shortest·absolute·name,·as·this·can·give·incorrect·results·on·file | 517 | to·create·the·shortest·absolute·name,·as·this·can·give·incorrect·results·on·file |
| 518 | systems·that·allow·links.</p><p><em>Unix·examples:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nf">pwd</span><span·class="p"·data-group-id=" | 518 | systems·that·allow·links.</p><p><em>Unix·examples:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nf">pwd</span><span·class="p"·data-group-id="0982834084-1">(</span><span·class="p"·data-group-id="0982834084-1">)</span><span·class="p">.</span><span·class="w"> |
| 519 | </span><span·class="s">"/usr/local"</span><span·class="gp·unselectable"> | 519 | </span><span·class="s">"/usr/local"</span><span·class="gp·unselectable"> |
| 520 | 2>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">absname</span><span·class="p"·data-group-id=" | 520 | 2>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">absname</span><span·class="p"·data-group-id="0982834084-2">(</span><span·class="s">"foo"</span><span·class="p"·data-group-id="0982834084-2">)</span><span·class="p">.</span><span·class="w"> |
| 521 | </span><span·class="s">"/usr/local/foo"</span><span·class="gp·unselectable"> | 521 | </span><span·class="s">"/usr/local/foo"</span><span·class="gp·unselectable"> |
| 522 | 3>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">absname</span><span·class="p"·data-group-id=" | 522 | 3>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">absname</span><span·class="p"·data-group-id="0982834084-3">(</span><span·class="s">"../x"</span><span·class="p"·data-group-id="0982834084-3">)</span><span·class="p">.</span><span·class="w"> |
| 523 | </span><span·class="s">"/usr/local/../x"</span><span·class="gp·unselectable"> | 523 | </span><span·class="s">"/usr/local/../x"</span><span·class="gp·unselectable"> |
| 524 | 4>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">absname</span><span·class="p"·data-group-id=" | 524 | 4>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">absname</span><span·class="p"·data-group-id="0982834084-4">(</span><span·class="s">"/"</span><span·class="p"·data-group-id="0982834084-4">)</span><span·class="p">.</span><span·class="w"> |
| 525 | </span><span·class="s">"/"</span></code></pre><p><em>Windows·examples:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nf">pwd</span><span·class="p"·data-group-id=" | 525 | </span><span·class="s">"/"</span></code></pre><p><em>Windows·examples:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nf">pwd</span><span·class="p"·data-group-id="6859471965-1">(</span><span·class="p"·data-group-id="6859471965-1">)</span><span·class="p">.</span><span·class="w"> |
| 526 | </span><span·class="s">"D:/usr/local"</span><span·class="gp·unselectable"> | 526 | </span><span·class="s">"D:/usr/local"</span><span·class="gp·unselectable"> |
| 527 | 2>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">absname</span><span·class="p"·data-group-id=" | 527 | 2>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">absname</span><span·class="p"·data-group-id="6859471965-2">(</span><span·class="s">"foo"</span><span·class="p"·data-group-id="6859471965-2">)</span><span·class="p">.</span><span·class="w"> |
| 528 | </span><span·class="s">"D:/usr/local/foo"</span><span·class="gp·unselectable"> | 528 | </span><span·class="s">"D:/usr/local/foo"</span><span·class="gp·unselectable"> |
| 529 | 3>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">absname</span><span·class="p"·data-group-id=" | 529 | 3>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">absname</span><span·class="p"·data-group-id="6859471965-3">(</span><span·class="s">"../x"</span><span·class="p"·data-group-id="6859471965-3">)</span><span·class="p">.</span><span·class="w"> |
| 530 | </span><span·class="s">"D:/usr/local/../x"</span><span·class="gp·unselectable"> | 530 | </span><span·class="s">"D:/usr/local/../x"</span><span·class="gp·unselectable"> |
| 531 | 4>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">absname</span><span·class="p"·data-group-id=" | 531 | 4>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">absname</span><span·class="p"·data-group-id="6859471965-4">(</span><span·class="s">"/"</span><span·class="p"·data-group-id="6859471965-4">)</span><span·class="p">.</span><span·class="w"> |
| 532 | </span><span·class="s">"D:/"</span></code></pre> | 532 | </span><span·class="s">"D:/"</span></code></pre> |
| 533 | ··</section> | 533 | ··</section> |
| 534 | </section> | 534 | </section> |
| 535 | <section·class="detail"·id="absname/2"> | 535 | <section·class="detail"·id="absname/2"> |
| 536 | ··<div·class="detail-header"> | 536 | ··<div·class="detail-header"> |
| 537 | ····<a·href="#absname/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 537 | ····<a·href="#absname/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
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| 658 | ·····················Opts·::·<a·href="#t:basedir_opts/0">basedir_opts</a>().</pre> | 658 | ·····················Opts·::·<a·href="#t:basedir_opts/0">basedir_opts</a>().</pre> |
| 659 | ······</div> | 659 | ······</div> |
| 660 | <p>Returns·a·suitable·path,·or·paths,·for·a·given·type.</p><p>If·<code·class="inline">os</code>·is·not·set·in·<code·class="inline">Opts</code>·the·function·will·default·to·the·native·option,·that | 660 | <p>Returns·a·suitable·path,·or·paths,·for·a·given·type.</p><p>If·<code·class="inline">os</code>·is·not·set·in·<code·class="inline">Opts</code>·the·function·will·default·to·the·native·option,·that |
| 661 | is·<code·class="inline">'linux'</code>,·<code·class="inline">'darwin'</code>·or·<code·class="inline">'windows'</code>,·as·understood·by·<a·href="../../../../lib/kernel-10.3/doc/html/os.html#type/0"><code·class="inline">os:type/0</code></a>. | 661 | is·<code·class="inline">'linux'</code>,·<code·class="inline">'darwin'</code>·or·<code·class="inline">'windows'</code>,·as·understood·by·<a·href="../../../../lib/kernel-10.3/doc/html/os.html#type/0"><code·class="inline">os:type/0</code></a>. |
| 662 | Anything·not·recognized·as·<code·class="inline">'darwin'</code>·or·<code·class="inline">'windows'</code>·is·interpreted·as·<code·class="inline">'linux'</code>.</p><p>The·options·<code·class="inline">'author'</code>·and·<code·class="inline">'version'</code>·are·only·used·with·<code·class="inline">'windows'</code>·option | 662 | Anything·not·recognized·as·<code·class="inline">'darwin'</code>·or·<code·class="inline">'windows'</code>·is·interpreted·as·<code·class="inline">'linux'</code>.</p><p>The·options·<code·class="inline">'author'</code>·and·<code·class="inline">'version'</code>·are·only·used·with·<code·class="inline">'windows'</code>·option |
| 663 | mode.</p><ul><li><p><code·class="inline"·id="user_cache">user_cache</code></p><p>The·path·location·is·intended·for·transient·data·files·on·a·local·machine.</p><p>On·Linux:·Respects·the·os·environment·variable·<code·class="inline">XDG_CACHE_HOME</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basedir</span><span·class="p"·data-group-id=" | 663 | mode.</p><ul><li><p><code·class="inline"·id="user_cache">user_cache</code></p><p>The·path·location·is·intended·for·transient·data·files·on·a·local·machine.</p><p>On·Linux:·Respects·the·os·environment·variable·<code·class="inline">XDG_CACHE_HOME</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basedir</span><span·class="p"·data-group-id="4975264554-1">(</span><span·class="ss">user_cache</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"my_application"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4975264554-2">#{</span><[·...·truncated·by·diffoscope;·len:·176,·SHA:·e09ee7db9604dcba85db87f8f2aeeb16eb7545d9f3fc137f99c0bdcea80281f3·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 664 | </span><span·class="s">"/home/otptest/.cache/my_application"</span></code></pre><p>On·Darwin:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basedir</span><span·class="p"·data-group-id=" | 664 | </span><span·class="s">"/home/otptest/.cache/my_application"</span></code></pre><p>On·Darwin:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basedir</span><span·class="p"·data-group-id="0127715676-1">(</span><span·class="ss">user_cache</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"my_application"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0127715676-2">#{</span><[·...·truncated·by·diffoscope;·len:·177,·SHA:·06ae8bdb489df76ecba1a88d3a0761ddf235c42736ad24792406a3fe958a447d·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 665 | </span><span·class="s">"/home/otptest/Library/Caches/my_application"</span></code></pre><p>On·Windows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basedir</span><span·class="p"·data-group-id=" | 665 | </span><span·class="s">"/home/otptest/Library/Caches/my_application"</span></code></pre><p>On·Windows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basedir</span><span·class="p"·data-group-id="0859760564-1">(</span><span·class="ss">user_cache</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"My·App"</span><span·class="p"·data-group-id="0859760564-1">)</span><span·class="p">.</span><span·class="w"> |
| 666 | </span><span·class="s">"c:/Users/otptest/AppData/Local/My·App/Cache"</span><span·class="gp·unselectable"> | 666 | </span><span·class="s">"c:/Users/otptest/AppData/Local/My·App/Cache"</span><span·class="gp·unselectable"> |
| 667 | 2>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basedir</span><span·class="p"·data-group-id=" | 667 | 2>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basedir</span><span·class="p"·data-group-id="0859760564-2">(</span><span·class="ss">user_cache</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"My·App"</span><span·class="p"·data-group-id="0859760564-2">)</span><span·class="p">.</span><span·class="w"> |
| 668 | </span><span·class="s">"c:/Users/otptest/AppData/Local/My·App/Cache"</span><span·class="gp·unselectable"> | 668 | </span><span·class="s">"c:/Users/otptest/AppData/Local/My·App/Cache"</span><span·class="gp·unselectable"> |
| 669 | 3>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basedir</span><span·class="p"·data-group-id=" | 669 | 3>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basedir</span><span·class="p"·data-group-id="0859760564-3">(</span><span·class="ss">user_cache</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"My·App"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0859760564-4">#{</span><span·cla[·...·truncated·by·diffoscope;·len:·184,·SHA:·e28ad1f23560a462e807e253ac8d856b2d6da53ec27b42783f26cd5cc438bee1·...·]-3">)</span><span·class="p">.</span><span·class="w"> |
| 670 | </span><span·class="s">"c:/Users/otptest/AppData/Local/Erlang/My·App/Cache"</span><span·class="gp·unselectable"> | 670 | </span><span·class="s">"c:/Users/otptest/AppData/Local/Erlang/My·App/Cache"</span><span·class="gp·unselectable"> |
| 671 | 4>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basedir</span><span·class="p"·data-group-id=" | 671 | 4>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basedir</span><span·class="p"·data-group-id="0859760564-5">(</span><span·class="ss">user_cache</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"My·App"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0859760564-6">#{</span><span·cla[·...·truncated·by·diffoscope;·len:·182,·SHA:·2fd3ea7c4f96d4231eb1c739cbc61d542e6ae911ed99cc27f1a97c051f3f0610·...·]-5">)</span><span·class="p">.</span><span·class="w"> |
| 672 | </span><span·class="s">"c:/Users/otptest/AppData/Local/My·App/1.2/Cache"</span><span·class="gp·unselectable"> | 672 | </span><span·class="s">"c:/Users/otptest/AppData/Local/My·App/1.2/Cache"</span><span·class="gp·unselectable"> |
| 673 | 5>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basedir</span><span·class="p"·data-group-id=" | 673 | 5>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basedir</span><span·class="p"·data-group-id="0859760564-7">(</span><span·class="ss">user_cache</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"My·App"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0859760564-8">#{</span><span·cla[·...·truncated·by·diffoscope;·len:·305,·SHA:·d6eefdec3772f2875e600f2ec241781f4701edc2bdc810f8b55ddfa94a25c168·...·]-7">)</span><span·class="p">.</span><span·class="w"> |
| 674 | </span><span·class="s">"c:/Users/otptest/AppData/Local/Erlang/My·App/1.2/Cache"</span></code></pre></li><li><p><code·class="inline"·id="user_config">user_config</code></p><p>The·path·location·is·intended·for·persistent·configuration·files.</p><p>On·Linux:·Respects·the·os·environment·variable·<code·class="inline">XDG_CONFIG_HOME</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">2>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basedir</span><span·class="p"·data-group-id=" | 674 | </span><span·class="s">"c:/Users/otptest/AppData/Local/Erlang/My·App/1.2/Cache"</span></code></pre></li><li><p><code·class="inline"·id="user_config">user_config</code></p><p>The·path·location·is·intended·for·persistent·configuration·files.</p><p>On·Linux:·Respects·the·os·environment·variable·<code·class="inline">XDG_CONFIG_HOME</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">2>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basedir</span><span·class="p"·data-group-id="1713057134-1">(</span><span·class="ss">user_config</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"my_application"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1713057134-2">#{</span>[·...·truncated·by·diffoscope;·len:·177,·SHA:·200c947dc833a1a06b38434b8ccdaa5fce33280ccce0a4e414a76f053241bd92·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 675 | </span><span·class="s">"/home/otptest/.config/my_application"</span></code></pre><p>On·Darwin:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">2>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basedir</span><span·class="p"·data-group-id=" | 675 | </span><span·class="s">"/home/otptest/.config/my_application"</span></code></pre><p>On·Darwin:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">2>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basedir</span><span·class="p"·data-group-id="9007548344-1">(</span><span·class="ss">user_config</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"my_application"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9007548344-2">#{</span>[·...·truncated·by·diffoscope;·len:·178,·SHA:·1cd95c3274ef0019f651773ea3563511fbe665bdc212a28307abac2b48ee59d5·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 676 | </span><span·class="s">"/home/otptest/Library/Application·Support/my_application"</span></code></pre><p>On·Windows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basedir</span><span·class="p"·data-group-id=" | 676 | </span><span·class="s">"/home/otptest/Library/Application·Support/my_application"</span></code></pre><p>On·Windows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basedir</span><span·class="p"·data-group-id="4392979879-1">(</span><span·class="ss">user_config</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"My·App"</span><span·class="p"·data-group-id="4392979879-1">)</span><span·class="p">.</span><span·class="w"> |
| 677 | </span><span·class="s">"c:/Users/otptest/AppData/Roaming/My·App"</span><span·class="gp·unselectable"> | 677 | </span><span·class="s">"c:/Users/otptest/AppData/Roaming/My·App"</span><span·class="gp·unselectable"> |
| 678 | 2>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basedir</span><span·class="p"·data-group-id=" | 678 | 2>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basedir</span><span·class="p"·data-group-id="4392979879-2">(</span><span·class="ss">user_config</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"My·App"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4392979879-3">#{</span><span·cl[·...·truncated·by·diffoscope;·len:·330,·SHA:·adc99caa02271aca2a4df23ea0175ee2a1b0c3bd0feb8e86e9f5865fb72c9fc7·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 679 | </span><span·class="s">"c:/Users/otptest/AppData/Roaming/Erlang/My·App/1.2"</span></code></pre></li><li><p><code·class="inline"·id="user_data">user_data</code></p><p>The·path·location·is·intended·for·persistent·data·files.</p><p>On·Linux:·Respects·the·os·environment·variable·<code·class="inline">XDG_DATA_HOME</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">3>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basedir</span><span·class="p"·data-group-id=" | 679 | </span><span·class="s">"c:/Users/otptest/AppData/Roaming/Erlang/My·App/1.2"</span></code></pre></li><li><p><code·class="inline"·id="user_data">user_data</code></p><p>The·path·location·is·intended·for·persistent·data·files.</p><p>On·Linux:·Respects·the·os·environment·variable·<code·class="inline">XDG_DATA_HOME</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">3>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basedir</span><span·class="p"·data-group-id="5005793431-1">(</span><span·class="ss">user_data</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"my_application"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="5005793431-2">#{</span><s[·...·truncated·by·diffoscope;·len:·174,·SHA:·bc980a3e538924b84c26e3863a50df19f3e80627d03391500050db6141729dfc·...·]1-1">)</span><span·class="p">.</span><span·class="w"> |
| 680 | </span><span·class="s">"/home/otptest/.local/my_application"</span></code></pre><p>On·Darwin:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">3>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basedir</span><span·class="p"·data-group-id=" | 680 | </span><span·class="s">"/home/otptest/.local/my_application"</span></code></pre><p>On·Darwin:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">3>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basedir</span><span·class="p"·data-group-id="6279595322-1">(</span><span·class="ss">user_data</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"my_application"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6279595322-2">#{</span><s[·...·truncated·by·diffoscope;·len:·176,·SHA:·63c8c6a01a28cde371dc61f66bd12c45bf530cd4b791fa608a1db7be73293948·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 681 | </span><span·class="s">"/home/otptest/Library/Application·Support/my_application"</span></code></pre><p>On·Windows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">8>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basedir</span><span·class="p"·data-group-id=" | 681 | </span><span·class="s">"/home/otptest/Library/Application·Support/my_application"</span></code></pre><p>On·Windows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">8>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basedir</span><span·class="p"·data-group-id="9266345510-1">(</span><span·class="ss">user_data</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"My·App"</span><span·class="p"·data-group-id="9266345510-1">)</span><span·class="p">.</span><span·class="w"> |
| 682 | </span><span·class="s">"c:/Users/otptest/AppData/Local/My·App"</span><span·class="gp·unselectable"> | 682 | </span><span·class="s">"c:/Users/otptest/AppData/Local/My·App"</span><span·class="gp·unselectable"> |
| 683 | 9>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basedir</span><span·class="p"·data-group-id=" | 683 | 9>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basedir</span><span·class="p"·data-group-id="9266345510-2">(</span><span·class="ss">user_data</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"My·App"</span><span·class="p">,</span><span·class="p"·data-group-id="9266345510-3">#{</span><span·class="ss">author</span><spa[·...·truncated·by·diffoscope;·len:·279,·SHA:·6e06fb90db797a1a8c57b4410c63052b30544fc33902eaf89b2c5ce2671bb6b6·...·]0-2">)</span><span·class="p">.</span><span·class="w"> |
| 684 | </span><span·class="s">"c:/Users/otptest/AppData/Local/Erlang/My·App/1.2"</span></code></pre></li><li><p><code·class="inline"·id="user_log">user_log</code></p><p>The·path·location·is·intended·for·transient·log·files·on·a·local·machine.</p><p>On·Linux:·Respects·the·os·environment·variable·<code·class="inline">XDG_CACHE_HOME</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">4>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basedir</span><span·class="p"·data-group-id=" | 684 | </span><span·class="s">"c:/Users/otptest/AppData/Local/Erlang/My·App/1.2"</span></code></pre></li><li><p><code·class="inline"·id="user_log">user_log</code></p><p>The·path·location·is·intended·for·transient·log·files·on·a·local·machine.</p><p>On·Linux:·Respects·the·os·environment·variable·<code·class="inline">XDG_CACHE_HOME</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">4>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basedir</span><span·class="p"·data-group-id="1419146689-1">(</span><span·class="ss">user_log</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"my_application"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1419146689-2">#{</span><sp[·...·truncated·by·diffoscope;·len:·174,·SHA:·cf9caacf5aa6de27a97f9e1d323d918898bb9287582c42171aa1fdb2a9615db5·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 685 | </span><span·class="s">"/home/otptest/.cache/my_application/log"</span></code></pre><p>On·Darwin:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">4>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basedir</span><span·class="p"·data-group-id=" | 685 | </span><span·class="s">"/home/otptest/.cache/my_application/log"</span></code></pre><p>On·Darwin:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">4>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basedir</span><span·class="p"·data-group-id="8737216726-1">(</span><span·class="ss">user_log</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"my_application"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8737216726-2">#{</span><sp[·...·truncated·by·diffoscope;·len:·175,·SHA:·2af9df0c5b1508c84cf535f0031e492d52f177e1eca8b1e40f2275ce86d08236·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 686 | </span><span·class="s">"/home/otptest/Library/Logs/my_application"</span></code></pre><p>On·Windows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">12>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basedir</span><span·class="p"·data-group-id="1 | 686 | </span><span·class="s">"/home/otptest/Library/Logs/my_application"</span></code></pre><p>On·Windows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">12>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basedir</span><span·class="p"·data-group-id="1134573166-1">(</span><span·class="ss">user_log</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"My·App"</span><span·class="p"·data-group-id="1134573166-1">)</span><span·class="p">.</span><span·class="w"> |
| 687 | </span><span·class="s">"c:/Users/otptest/AppData/Local/My·App/Logs"</span><span·class="gp·unselectable"> | 687 | </span><span·class="s">"c:/Users/otptest/AppData/Local/My·App/Logs"</span><span·class="gp·unselectable"> |
| 688 | 13>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basedir</span><span·class="p"·data-group-id="1 | 688 | 13>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basedir</span><span·class="p"·data-group-id="1134573166-2">(</span><span·class="ss">user_log</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"My·App"</span><span·class="p">,</span><span·class="p"·data-group-id="1134573166-3">#{</span><span·class="ss">author</span><span·[·...·truncated·by·diffoscope;·len:·278,·SHA:·4bfc909ff78d4937503ebd1fac584f84cc45ed5f433337a3dfdb1578348bc0f3·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 689 | </span><span·class="s">"c:/Users/otptest/AppData/Local/Erlang/My·App/1.2/Logs"</span></code></pre></li><li><p><code·class="inline"·id="site_config">site_config</code></p><p>On·Linux:·Respects·the·os·environment·variable·<code·class="inline">XDG_CONFIG_DIRS</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">5>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basedir</span><span·class="p"·data-group-id=" | 689 | </span><span·class="s">"c:/Users/otptest/AppData/Local/Erlang/My·App/1.2/Logs"</span></code></pre></li><li><p><code·class="inline"·id="site_config">site_config</code></p><p>On·Linux:·Respects·the·os·environment·variable·<code·class="inline">XDG_CONFIG_DIRS</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">5>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basedir</span><span·class="p"·data-group-id="0983954167-1">(</span><span·class="ss">site_config</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"my_application"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0983954167-2">#{</span>[·...·truncated·by·diffoscope;·len:·177,·SHA:·f31d0e02ceb1f5eeda51ef2a59fb3a688fb0cef57e239b0f6abb21de0908db73·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 690 | </span><span·class="p"·data-group-id=" | 690 | </span><span·class="p"·data-group-id="0983954167-3">[</span><span·class="s">"/usr/local/share/my_application"</span><span·class="p">,</span><span·class="w"> |
| 691 | ·</span><span·class="s">"/usr/share/my_application"</span><span·class="p"·data-group-id=" | 691 | ·</span><span·class="s">"/usr/share/my_application"</span><span·class="p"·data-group-id="0983954167-3">]</span><span·class="gp·unselectable"> |
| 692 | 6>·</span><span·class="nc">os</span><span·class="p">:</span><span·class="nf">getenv</span><span·class="p"·data-group-id=" | 692 | 6>·</span><span·class="nc">os</span><span·class="p">:</span><span·class="nf">getenv</span><span·class="p"·data-group-id="0983954167-4">(</span><span·class="s">"XDG_CONFIG_DIRS"</span><span·class="p"·data-group-id="0983954167-4">)</span><span·class="p">.</span><span·class="w"> |
| 693 | </span><span·class="s">"/etc/xdg/xdg-ubuntu:/usr/share/upstart/xdg:/etc/xdg"</span><span·class="gp·unselectable"> | 693 | </span><span·class="s">"/etc/xdg/xdg-ubuntu:/usr/share/upstart/xdg:/etc/xdg"</span><span·class="gp·unselectable"> |
| 694 | 7>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basedir</span><span·class="p"·data-group-id=" | 694 | 7>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basedir</span><span·class="p"·data-group-id="0983954167-5">(</span><span·class="ss">site_config</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"my_application"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0983954167-6">#{</span>[·...·truncated·by·diffoscope;·len:·177,·SHA:·89cb7cd7df8b37d32738f8f442597b475d9789f7817a8a79a065d4293f29d36f·...·]-5">)</span><span·class="p">.</span><span·class="w"> |
| 695 | </span><span·class="p"·data-group-id=" | 695 | </span><span·class="p"·data-group-id="0983954167-7">[</span><span·class="s">"/etc/xdg/xdg-ubuntu/my_application"</span><span·class="p">,</span><span·class="w"> |
| 696 | ·</span><span·class="s">"/usr/share/upstart/xdg/my_application"</span><span·class="p">,</span><span·class="w"> | 696 | ·</span><span·class="s">"/usr/share/upstart/xdg/my_application"</span><span·class="p">,</span><span·class="w"> |
| 697 | ·</span><span·class="s">"/etc/xdg/my_application"</span><span·class="p"·data-group-id=" | 697 | ·</span><span·class="s">"/etc/xdg/my_application"</span><span·class="p"·data-group-id="0983954167-7">]</span><span·class="gp·unselectable"> |
| 698 | 8>·</span><span·class="nc">os</span><span·class="p">:</span><span·class="nf">unsetenv</span><span·class="p"·data-group-id=" | 698 | 8>·</span><span·class="nc">os</span><span·class="p">:</span><span·class="nf">unsetenv</span><span·class="p"·data-group-id="0983954167-8">(</span><span·class="s">"XDG_CONFIG_DIRS"</span><span·class="p"·data-group-id="0983954167-8">)</span><span·class="p">.</span><span·class="w"> |
| 699 | </span><span·class="ss">true</span><span·class="gp·unselectable"> | 699 | </span><span·class="ss">true</span><span·class="gp·unselectable"> |
| 700 | 9>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basedir</span><span·class="p"·data-group-id=" | 700 | 9>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basedir</span><span·class="p"·data-group-id="0983954167-9">(</span><span·class="ss">site_config</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"my_application"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0983954167-10">#{</span[·...·truncated·by·diffoscope;·len:·179,·SHA:·6b12578c5f6b38c2718521ad0100b49bd8beaa7af9f38e0034f04bd31a74ceac·...·]-9">)</span><span·class="p">.</span><span·class="w"> |
| 701 | </span><span·class="p"·data-group-id=" | 701 | </span><span·class="p"·data-group-id="0983954167-11">[</span><span·class="s">"/etc/xdg/my_application"</span><span·class="p"·data-group-id="0983954167-11">]</span></code></pre><p>On·Darwin:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">5>·</span>[·...·truncated·by·diffoscope;·len:·552,·SHA:·4920cd324b4ec135bd54c995dda5957bf4f23f3a2127758aa3e41e08ec916a49·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 702 | </span><span·class="p"·data-group-id=" | 702 | </span><span·class="p"·data-group-id="3334353270-3">[</span><span·class="s">"/Library/Application·Support/my_application"</span><span·class="p"·data-group-id="3334353270-3">]</span></code></pre></li><li><p><code·class="inline"·id="site_data">site_data</code></p><p>On·Linux:·Respects·[·...·truncated·by·diffoscope;·len:·387,·SHA:·42d223d0653fe8c182318fb41c504b967cb8939678cdcfa7ee21fc0a52e08f9d·...·]7-1">)</span><span·class="p">.</span><span·class="w"> |
| 703 | </span><span·class="s">"/usr/share/ubuntu:/usr/share/gnome:/usr/local/share/:/usr/share/"</span><span·class="gp·unselectable"> | 703 | </span><span·class="s">"/usr/share/ubuntu:/usr/share/gnome:/usr/local/share/:/usr/share/"</span><span·class="gp·unselectable"> |
| 704 | 11>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basedir</span><span·class="p"·data-group-id=" | 704 | 11>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basedir</span><span·class="p"·data-group-id="6597135627-2">(</span><span·class="ss">site_data</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"my_application"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6597135627-3">#{</span><s[·...·truncated·by·diffoscope;·len:·174,·SHA:·737a4b67081698ce9cdb66883341087c9915c3e62388675988929dd533e9a27a·...·]7-2">)</span><span·class="p">.</span><span·class="w"> |
| 705 | </span><span·class="p"·data-group-id=" | 705 | </span><span·class="p"·data-group-id="6597135627-4">[</span><span·class="s">"/usr/share/ubuntu/my_application"</span><span·class="p">,</span><span·class="w"> |
| 706 | ·</span><span·class="s">"/usr/share/gnome/my_application"</span><span·class="p">,</span><span·class="w"> | 706 | ·</span><span·class="s">"/usr/share/gnome/my_application"</span><span·class="p">,</span><span·class="w"> |
| 707 | ·</span><span·class="s">"/usr/local/share/my_application"</span><span·class="p">,</span><span·class="w"> | 707 | ·</span><span·class="s">"/usr/local/share/my_application"</span><span·class="p">,</span><span·class="w"> |
| 708 | ·</span><span·class="s">"/usr/share/my_application"</span><span·class="p"·data-group-id=" | 708 | ·</span><span·class="s">"/usr/share/my_application"</span><span·class="p"·data-group-id="6597135627-4">]</span><span·class="gp·unselectable"> |
| 709 | 12>·</span><span·class="nc">os</span><span·class="p">:</span><span·class="nf">unsetenv</span><span·class="p"·data-group-id=" | 709 | 12>·</span><span·class="nc">os</span><span·class="p">:</span><span·class="nf">unsetenv</span><span·class="p"·data-group-id="6597135627-5">(</span><span·class="s">"XDG_DATA_DIRS"</span><span·class="p"·data-group-id="6597135627-5">)</span><span·class="p">.</span><span·class="w"> |
| 710 | </span><span·class="ss">true</span><span·class="gp·unselectable"> | 710 | </span><span·class="ss">true</span><span·class="gp·unselectable"> |
| 711 | 13>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basedir</span><span·class="p"·data-group-id=" | 711 | 13>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basedir</span><span·class="p"·data-group-id="6597135627-6">(</span><span·class="ss">site_data</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"my_application"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6597135627-7">#{</span><s[·...·truncated·by·diffoscope;·len:·174,·SHA:·30d6421a377f97344a36f896c26b64e58e6ed56424a6cdfff07871538eb199e1·...·]7-6">)</span><span·class="p">.</span><span·class="w"> |
| 712 | </span><span·class="p"·data-group-id=" | 712 | </span><span·class="p"·data-group-id="6597135627-8">[</span><span·class="s">"/usr/local/share/my_application"</span><span·class="p">,</span><span·class="w"> |
| 713 | ·</span><span·class="s">"/usr/share/my_application"</span><span·class="p"·data-group-id=" | 713 | ·</span><span·class="s">"/usr/share/my_application"</span><span·class="p"·data-group-id="6597135627-8">]</span></code></pre><p>On·Darwin:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">5>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basedir</span><span·class="p"·data-group[·...·truncated·by·diffoscope;·len:·437,·SHA:·118892136a0bfa3e5e2ff82eac24e0d833877a66ae3ea5d90692b56113091e35·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 714 | </span><span·class="p"·data-group-id=" | 714 | </span><span·class="p"·data-group-id="3223272611-3">[</span><span·class="s">"/Library/Application·Support/my_application"</span><span·class="p"·data-group-id="3223272611-3">]</span></code></pre></li></ul> |
| 715 | ··</section> | 715 | ··</section> |
| 716 | </section> | 716 | </section> |
| 717 | <section·class="detail"·id="basename/1"> | 717 | <section·class="detail"·id="basename/1"> |
| 718 | ··<div·class="detail-header"> | 718 | ··<div·class="detail-header"> |
| 719 | ····<a·href="#basename/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 719 | ····<a·href="#basename/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 720 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 720 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 736, 20 lines modified | Offset 736, 20 lines modified | ||
| 736 | ······<div·class="specs"> | 736 | ······<div·class="specs"> |
| 737 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·basename(Filename)·->·<a·href="../../../../lib/kernel-10.3/doc/html/file.html#t:filename_all/0">file:filename_all</a>()·when·Filename·::·<a·href="../../../../lib/kernel-10.3/doc/html/file.html#t:name_all/0">file:name_all</a>().</pre> | 737 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·basename(Filename)·->·<a·href="../../../../lib/kernel-10.3/doc/html/file.html#t:filename_all/0">file:filename_all</a>()·when·Filename·::·<a·href="../../../../lib/kernel-10.3/doc/html/file.html#t:name_all/0">file:name_all</a>().</pre> |
| 738 | ······</div> | 738 | ······</div> |
| 739 | <p>Returns·the·last·component·of·<code·class="inline">Filename</code>,·or·<code·class="inline">Filename</code>·itself·if·it·does·not | 739 | <p>Returns·the·last·component·of·<code·class="inline">Filename</code>,·or·<code·class="inline">Filename</code>·itself·if·it·does·not |
| 740 | contain·any·directory·separators.</p><p><em>Examples:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">5>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basename</span><span·class="p"·data-group-id=" | 740 | contain·any·directory·separators.</p><p><em>Examples:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">5>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basename</span><span·class="p"·data-group-id="8538227424-1">(</span><span·class="s">"foo"</span><span·class="p"·data-group-id="8538227424-1">)</span><span·class="p">.</span><span·class="w"> |
| 741 | </span><span·class="s">"foo"</span><span·class="gp·unselectable"> | 741 | </span><span·class="s">"foo"</span><span·class="gp·unselectable"> |
| 742 | 6>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basename</span><span·class="p"·data-group-id=" | 742 | 6>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basename</span><span·class="p"·data-group-id="8538227424-2">(</span><span·class="s">"/usr/foo"</span><span·class="p"·data-group-id="8538227424-2">)</span><span·class="p">.</span><span·class="w"> |
| 743 | </span><span·class="s">"foo"</span><span·class="gp·unselectable"> | 743 | </span><span·class="s">"foo"</span><span·class="gp·unselectable"> |
| 744 | 7>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basename</span><span·class="p"·data-group-id=" | 744 | 7>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basename</span><span·class="p"·data-group-id="8538227424-3">(</span><span·class="s">"/"</span><span·class="p"·data-group-id="8538227424-3">)</span><span·class="p">.</span><span·class="w"> |
| 745 | </span><span·class="p"·data-group-id=" | 745 | </span><span·class="p"·data-group-id="8538227424-4">[</span><span·class="p"·data-group-id="8538227424-4">]</span></code></pre> |
| 746 | ··</section> | 746 | ··</section> |
| 747 | </section> | 747 | </section> |
| 748 | <section·class="detail"·id="basename/2"> | 748 | <section·class="detail"·id="basename/2"> |
| 749 | ··<div·class="detail-header"> | 749 | ··<div·class="detail-header"> |
| 750 | ····<a·href="#basename/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 750 | ····<a·href="#basename/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 751 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 751 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 770, 23 lines modified | Offset 770, 23 lines modified | ||
| 770 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·basename(Filename,·Ext)·->·<a·href="../../../../lib/kernel-10.3/doc/html/file.html#t:filename_all/0">file:filename_all</a>() | 770 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·basename(Filename,·Ext)·->·<a·href="../../../../lib/kernel-10.3/doc/html/file.html#t:filename_all/0">file:filename_all</a>() |
| 771 | ··················when·Filename·::·<a·href="../../../../lib/kernel-10.3/doc/html/file.html#t:name_all/0">file:name_all</a>(),·Ext·::·<a·href="../../../../lib/kernel-10.3/doc/html/file.html#t:name_all/0">file:name_all</a>().</pre> | 771 | ··················when·Filename·::·<a·href="../../../../lib/kernel-10.3/doc/html/file.html#t:name_all/0">file:name_all</a>(),·Ext·::·<a·href="../../../../lib/kernel-10.3/doc/html/file.html#t:name_all/0">file:name_all</a>().</pre> |
| 772 | ······</div> | 772 | ······</div> |
| 773 | <p>Returns·the·last·component·of·<code·class="inline">Filename</code>·with·extension·<code·class="inline">Ext</code>·stripped.</p><p>This·function·is·to·be·used·to·remove·a·(possible)·specific·extension. | 773 | <p>Returns·the·last·component·of·<code·class="inline">Filename</code>·with·extension·<code·class="inline">Ext</code>·stripped.</p><p>This·function·is·to·be·used·to·remove·a·(possible)·specific·extension. |
| 774 | To·remove·an·existing·extension·when·you·are·unsure·which·one·it·is,·use | 774 | To·remove·an·existing·extension·when·you·are·unsure·which·one·it·is,·use |
| 775 | <a·href="#rootname/1"><code·class="inline">rootname(basename(Filename))</code></a>.</p><p><em>Examples:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">8>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basename</span><span·class="p"·data-group-id=" | 775 | <a·href="#rootname/1"><code·class="inline">rootname(basename(Filename))</code></a>.</p><p><em>Examples:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">8>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basename</span><span·class="p"·data-group-id="6260926785-1">(</span><span·class="s">"~/src/kalle.erl"</span><span·class="p">,</span><span·class="w">·</span><span·class="s">".erl"</span><span·class="p"·data-group-id="6260926785-1">)</span><span·class="p">.</span><span·class="w"> |
| 776 | </span><span·class="s">"kalle"</span><span·class="gp·unselectable"> | 776 | </span><span·class="s">"kalle"</span><span·class="gp·unselectable"> |
| 777 | 9>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basename</span><span·class="p"·data-group-id=" | 777 | 9>·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">basename</span><span·class="p"·data-group-id="6260926785-2">(</span><span·class="s">"~/src/kalle.beam"</span><span·class="p">,</span><span·class="w">·</span><span·class="s">".erl"</span><span·class="p"·data-group-id="6260926785-2">)</span><span·class="p">.</span><span·class="w"> |
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| 1537 | ······<p·class="built-using"> | 1537 | ······<p·class="built-using"> |
| 1538 | ········Built·using | 1538 | ········Built·using |
| 1539 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1539 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1540 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1540 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1541 | ······</p> | 1541 | ······</p> |
| 1542 | <p>Copyright·©·1996-202 | 1542 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1543 | ····</footer> | 1543 | ····</footer> |
| 1544 | ··</div> | 1544 | ··</div> |
| 1545 | </main> | 1545 | </main> |
| 1546 | </div> | 1546 | </div> |
| 1547 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1547 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1548 | ··<script> | 1548 | ··<script> |
| 1549 | ··let·initialized·=·false; | 1549 | ··let·initialized·=·false; |
| Offset 1267, 23 lines modified | Offset 1267, 23 lines modified | ||
| 1267 | format/limit·the·server·state·for·debugging·and·logging·purposes.</p><p>It·is·called·in·the·following·situations:</p><ul><li><p>One·of·<a·href="sys.html#get_status/1"><code·class="inline">sys:get_status/1,2</code></a>·is·invoked | 1267 | format/limit·the·server·state·for·debugging·and·logging·purposes.</p><p>It·is·called·in·the·following·situations:</p><ul><li><p>One·of·<a·href="sys.html#get_status/1"><code·class="inline">sys:get_status/1,2</code></a>·is·invoked |
| 1268 | to·get·the·<code·class="inline">gen_event</code>·status.</p></li><li><p>The·event·handler·terminates·abnormally·and·<code·class="inline">gen_event</code>·logs·an·error.</p></li></ul><p>This·callback·is·used·to·limit·the·status·of·the·event·handler·returned·by | 1268 | to·get·the·<code·class="inline">gen_event</code>·status.</p></li><li><p>The·event·handler·terminates·abnormally·and·<code·class="inline">gen_event</code>·logs·an·error.</p></li></ul><p>This·callback·is·used·to·limit·the·status·of·the·event·handler·returned·by |
| 1269 | <a·href="sys.html#get_status/1"><code·class="inline">sys:get_status/1,2</code></a>·or·sent·to·<a·href="../../../../lib/kernel-10.3/doc/html/logger.html"><code·class="inline">logger</code></a>.</p><p>The·callback·gets·a·map·<code·class="inline">Status</code>·describing·the·current·status | 1269 | <a·href="sys.html#get_status/1"><code·class="inline">sys:get_status/1,2</code></a>·or·sent·to·<a·href="../../../../lib/kernel-10.3/doc/html/logger.html"><code·class="inline">logger</code></a>.</p><p>The·callback·gets·a·map·<code·class="inline">Status</code>·describing·the·current·status |
| 1270 | and·shall·return·a·map·<code·class="inline">NewStatus</code>·with·the·same·keys, | 1270 | and·shall·return·a·map·<code·class="inline">NewStatus</code>·with·the·same·keys, |
| 1271 | but·it·may·transform·some·values.</p><p>Two·possible·use·cases·for·this·callback·is·to·remove | 1271 | but·it·may·transform·some·values.</p><p>Two·possible·use·cases·for·this·callback·is·to·remove |
| 1272 | sensitive·information·from·the·state·to·prevent·it·from·being·printed | 1272 | sensitive·information·from·the·state·to·prevent·it·from·being·printed |
| 1273 | in·log·files,·or·to·compact·large·irrelevant·status·items | 1273 | in·log·files,·or·to·compact·large·irrelevant·status·items |
| 1274 | that·would·only·clutter·the·logs.</p><p><em>Example</em>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">format_status</span><span·class="p"·data-group-id=" | 1274 | that·would·only·clutter·the·logs.</p><p><em>Example</em>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">format_status</span><span·class="p"·data-group-id="5653075577-1">(</span><span·class="n">Status</span><span·class="p"·data-group-id="5653075577-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 1275 | ··</span><span·class="nc">maps</span><span·class="p">:</span><span·class="nf">map</span><span·class="p"·data-group-id=" | 1275 | ··</span><span·class="nc">maps</span><span·class="p">:</span><span·class="nf">map</span><span·class="p"·data-group-id="5653075577-2">(</span><span·class="w"> |
| 1276 | ····</span><span·class="nf">fun</span><span·class="p"·data-group-id=" | 1276 | ····</span><span·class="nf">fun</span><span·class="p"·data-group-id="5653075577-3">(</span><span·class="ss">state</span><span·class="p">,</span><span·class="n">State</span><span·class="p"·data-group-id="5653075577-3">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 1277 | ············</span><span·class="nc">maps</span><span·class="p">:</span><span·class="nf">remove</span><span·class="p"·data-group-id=" | 1277 | ············</span><span·class="nc">maps</span><span·class="p">:</span><span·class="nf">remove</span><span·class="p"·data-group-id="5653075577-4">(</span><span·class="ss">private_key</span><span·class="p">,</span><span·class="w">·</span><span·class="n">State</span><span·class="p"·data-group-id="5653075577-4">)</span><span·class="p">;</span><span·class="w"> |
| 1278 | ·······</span><span·class="p"·data-group-id=" | 1278 | ·······</span><span·class="p"·data-group-id="5653075577-5">(</span><span·class="ss">message</span><span·class="p">,</span><span·class="p"·data-group-id="5653075577-6">{</span><span·class="ss">password</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="n">Pass</[·...·truncated·by·diffoscope;·len:·98,·SHA:·ce1dc7c3020137770fd755ae0567cb2d1dd6eefef815166bdbf73edccfbac196·...·]7-5">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 1279 | ············</span><span·class="p"·data-group-id=" | 1279 | ············</span><span·class="p"·data-group-id="5653075577-7">{</span><span·class="ss">password</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">removed</span><span·class="p"·data-group-id="5653075577-7">}</span><span·class="p">;</span><span·class="w"> |
| 1280 | ·······</span><span·class="p"·data-group-id=" | 1280 | ·······</span><span·class="p"·data-group-id="5653075577-8">(</span><span·class="p">_</span><span·class="p">,</span><span·class="n">Value</span><span·class="p"·data-group-id="5653075577-8">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 1281 | ············</span><span·class="n">Value</span><span·class="w"> | 1281 | ············</span><span·class="n">Value</span><span·class="w"> |
| 1282 | ····</span><span·class="k">end</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Status</span><span·class="p"·data-group-id=" | 1282 | ····</span><span·class="k">end</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Status</span><span·class="p"·data-group-id="5653075577-2">)</span><span·class="p">.</span></code></pre><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>This·callback·is·optional,·so·event·handler·modules·need·not·export·it. |
| 1283 | If·a·handler·does·not·export·this·function,·the·<code·class="inline">gen_event</code>·module | 1283 | If·a·handler·does·not·export·this·function,·the·<code·class="inline">gen_event</code>·module |
| 1284 | uses·the·handler·state·directly·for·the·purposes·described·below.</p><p>If·this·callback·is·exported·but·fails,·to·hide·possibly·sensitive·data, | 1284 | uses·the·handler·state·directly·for·the·purposes·described·below.</p><p>If·this·callback·is·exported·but·fails,·to·hide·possibly·sensitive·data, |
| 1285 | the·default·function·will·instead·return·the·fact·that | 1285 | the·default·function·will·instead·return·the·fact·that |
| 1286 | <a·href="#c:format_status/1"><code·class="inline">format_status/1</code></a>·has·crashed.</p></section> | 1286 | <a·href="#c:format_status/1"><code·class="inline">format_status/1</code></a>·has·crashed.</p></section> |
| 1287 | ··</section> | 1287 | ··</section> |
| 1288 | </section> | 1288 | </section> |
| 1289 | <section·class="detail"·id="c:format_status/2"> | 1289 | <section·class="detail"·id="c:format_status/2"> |
| Offset 2878, 15 lines modified | Offset 2878, 15 lines modified | ||
| 2878 | ······<p·class="built-using"> | 2878 | ······<p·class="built-using"> |
| 2879 | ········Built·using | 2879 | ········Built·using |
| 2880 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 2880 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 2881 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 2881 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 2882 | ······</p> | 2882 | ······</p> |
| 2883 | <p>Copyright·©·1996-202 | 2883 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 2884 | ····</footer> | 2884 | ····</footer> |
| 2885 | ··</div> | 2885 | ··</div> |
| 2886 | </main> | 2886 | </main> |
| 2887 | </div> | 2887 | </div> |
| 2888 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 2888 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 2889 | ··<script> | 2889 | ··<script> |
| 2890 | ··let·initialized·=·false; | 2890 | ··let·initialized·=·false; |
| Offset 131, 171 lines modified | Offset 131, 171 lines modified | ||
| 131 | <p>Deprecated·and·replaced·by·<a·href="gen_statem.html"><code·class="inline">gen_statem</code></a>·in·OTP·20.</p><h2·id="module-migration-to-gen_statem"·class="section-heading"> | 131 | <p>Deprecated·and·replaced·by·<a·href="gen_statem.html"><code·class="inline">gen_statem</code></a>·in·OTP·20.</p><h2·id="module-migration-to-gen_statem"·class="section-heading"> |
| 132 | ··<a·href="#module-migration-to-gen_statem"·class="hover-link"> | 132 | ··<a·href="#module-migration-to-gen_statem"·class="hover-link"> |
| 133 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 133 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 134 | ··</a> | 134 | ··</a> |
| 135 | ··<span·class="text">Migration·to·gen_statem</span> | 135 | ··<span·class="text">Migration·to·gen_statem</span> |
| 136 | </h2> | 136 | </h2> |
| 137 | <p>Here·follows·a·simple·example·of·turning·a·gen_fsm·into·a·<a·href="gen_statem.html"><code·class="inline">gen_statem</code></a>. | 137 | <p>Here·follows·a·simple·example·of·turning·a·gen_fsm·into·a·<a·href="gen_statem.html"><code·class="inline">gen_statem</code></a>. |
| 138 | The·example·comes·from·the·previous·User's·Guide·for·<code·class="inline">gen_fsm</code></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 138 | The·example·comes·from·the·previous·User's·Guide·for·<code·class="inline">gen_fsm</code></p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="6459352893-1">(</span><span·class="ss">code_lock</span><span·class="p"·data-group-id="6459352893-1">)</span><span·class="p">.</span><span·class="w"> |
| 139 | </span><span·class="p">-</span><span·class="na">define</span><span·class="p"·data-group-id=" | 139 | </span><span·class="p">-</span><span·class="na">define</span><span·class="p"·data-group-id="6459352893-2">(</span><span·class="n">NAME</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">code_lock</span><span·class="p"·data-group-id="6459352893-2">)</span><span·class="p">.</span><span·class="w"> |
| 140 | </span><span·class="c1">%-define(BEFORE_REWRITE,·true).</span><span·class="w"> | 140 | </span><span·class="c1">%-define(BEFORE_REWRITE,·true).</span><span·class="w"> |
| 141 | </span><span·class="w"> | 141 | </span><span·class="w"> |
| 142 | </span><span·class="p">-</span><span·class="na">ifdef</span><span·class="p"·data-group-id=" | 142 | </span><span·class="p">-</span><span·class="na">ifdef</span><span·class="p"·data-group-id="6459352893-3">(</span><span·class="n">BEFORE_REWRITE</span><span·class="p"·data-group-id="6459352893-3">)</span><span·class="p">.</span><span·class="w"> |
| 143 | </span><span·class="p">-</span><span·class="na">behaviour</span><span·class="p"·data-group-id=" | 143 | </span><span·class="p">-</span><span·class="na">behaviour</span><span·class="p"·data-group-id="6459352893-4">(</span><span·class="ss">gen_fsm</span><span·class="p"·data-group-id="6459352893-4">)</span><span·class="p">.</span><span·class="w"> |
| 144 | </span><span·class="p">-</span><span·class="na">else</span><span·class="p">.</span><span·class="w"> | 144 | </span><span·class="p">-</span><span·class="na">else</span><span·class="p">.</span><span·class="w"> |
| 145 | </span><span·class="p">-</span><span·class="na">behaviour</span><span·class="p"·data-group-id=" | 145 | </span><span·class="p">-</span><span·class="na">behaviour</span><span·class="p"·data-group-id="6459352893-5">(</span><span·class="ss">gen_statem</span><span·class="p"·data-group-id="6459352893-5">)</span><span·class="p">.</span><span·class="w"> |
| 146 | </span><span·class="p">-</span><span·class="na">endif</span><span·class="p">.</span><span·class="w"> | 146 | </span><span·class="p">-</span><span·class="na">endif</span><span·class="p">.</span><span·class="w"> |
| 147 | </span><span·class="w"> | 147 | </span><span·class="w"> |
| 148 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 148 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="6459352893-6">(</span><span·class="p"·data-group-id="6459352893-7">[</span><span·class="ss">start_link</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">button</span><span·class="p">/</s[·...·truncated·by·diffoscope;·len:·248,·SHA:·b5e79a93b73a3f15d0ec9384af808eb218f345af2223b351b308cf1ce7f6d28a·...·]-6">)</span><span·class="p">.</span><span·class="w"> |
| 149 | </span><span·class="w"> | 149 | </span><span·class="w"> |
| 150 | </span><span·class="p">-</span><span·class="na">ifdef</span><span·class="p"·data-group-id=" | 150 | </span><span·class="p">-</span><span·class="na">ifdef</span><span·class="p"·data-group-id="6459352893-8">(</span><span·class="n">BEFORE_REWRITE</span><span·class="p"·data-group-id="6459352893-8">)</span><span·class="p">.</span><span·class="w"> |
| 151 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 151 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="6459352893-9">(</span><span·class="p"·data-group-id="6459352893-10">[</span><span·class="ss">init</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">locked</span><span·class="p">/</span><span·class="mi">2</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">open</span><span·class="p">/</span><span·class="mi">2</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">handle_sync_event</span><span·class="p">/</span><span·class="mi">4</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">handle_event</span><span·class="p">/</span><span·class="mi">3</span><span·class="p">,</span><span·class="w"> |
| 152 | ·····</span><span·class="ss">handle_info</span><span·class="p">/</span><span·class="mi">3</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">terminate</span><span·class="p">/</span><span·class="mi">3</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">code_change</span><span·class="p">/</span><span·class="mi">4</span><span·class="p"·data-group-id=" | 152 | ·····</span><span·class="ss">handle_info</span><span·class="p">/</span><span·class="mi">3</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">terminate</span><span·class="p">/</span><span·class="mi">3</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">code_change</span><span·class="p">/</span><span·class="mi">4</span><span·class="p"·data-group-id="6459352893-10">]</span><span·class="p"·data-group-id="6459352893-9">)</span><span·class="p">.</span><span·class="w"> |
| 153 | </span><span·class="p">-</span><span·class="na">else</span><span·class="p">.</span><span·class="w"> | 153 | </span><span·class="p">-</span><span·class="na">else</span><span·class="p">.</span><span·class="w"> |
| 154 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 154 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="6459352893-11">(</span><span·class="p"·data-group-id="6459352893-12">[</span><span·class="ss">init</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">callback_mode</span><span·class="p">/</span><span·class="mi">0</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">locked</span><span·class="p">/</span><span·class="mi">3</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">open</span><span·class="p">/</span><span·class="mi">3</span><span·class="p">,</span><span·class="w"> |
| 155 | ·····</span><span·class="ss">terminate</span><span·class="p">/</span><span·class="mi">3</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">code_change</span><span·class="p">/</span><span·class="mi">4</span><span·class="p"·data-group-id=" | 155 | ·····</span><span·class="ss">terminate</span><span·class="p">/</span><span·class="mi">3</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">code_change</span><span·class="p">/</span><span·class="mi">4</span><span·class="p"·data-group-id="6459352893-12">]</span><span·class="p"·data-group-id="6459352893-11">)</span><span·class="p">.</span><span·class="w"> |
| 156 | </span><span·class="c1">%%·Add·callback__mode/0</span><span·class="w"> | 156 | </span><span·class="c1">%%·Add·callback__mode/0</span><span·class="w"> |
| 157 | </span><span·class="c1">%%·Change·arity·of·the·state·functions</span><span·class="w"> | 157 | </span><span·class="c1">%%·Change·arity·of·the·state·functions</span><span·class="w"> |
| 158 | </span><span·class="c1">%%·Remove·handle_info/3</span><span·class="w"> | 158 | </span><span·class="c1">%%·Remove·handle_info/3</span><span·class="w"> |
| 159 | </span><span·class="p">-</span><span·class="na">endif</span><span·class="p">.</span><span·class="w"> | 159 | </span><span·class="p">-</span><span·class="na">endif</span><span·class="p">.</span><span·class="w"> |
| 160 | </span><span·class="w"> | 160 | </span><span·class="w"> |
| 161 | </span><span·class="p">-</span><span·class="na">ifdef</span><span·class="p"·data-group-id=" | 161 | </span><span·class="p">-</span><span·class="na">ifdef</span><span·class="p"·data-group-id="6459352893-13">(</span><span·class="n">BEFORE_REWRITE</span><span·class="p"·data-group-id="6459352893-13">)</span><span·class="p">.</span><span·class="w"> |
| 162 | </span><span·class="nf">start_link</span><span·class="p"·data-group-id=" | 162 | </span><span·class="nf">start_link</span><span·class="p"·data-group-id="6459352893-14">(</span><span·class="n">Code</span><span·class="p"·data-group-id="6459352893-14">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 163 | ····</span><span·class="nc">gen_fsm</span><span·class="p">:</span><span·class="nf">start_link</span><span·class="p"·data-group-id=" | 163 | ····</span><span·class="nc">gen_fsm</span><span·class="p">:</span><span·class="nf">start_link</span><span·class="p"·data-group-id="6459352893-15">(</span><span·class="p"·data-group-id="6459352893-16">{</span><span·class="ss">local</span><span·class="p">,</span><span·class="w">·</span><span·class="o">?</span><span·class="n">NAME</span><span·class="p"·data-group-id="6459352893-16">}</sp[·...·truncated·by·diffoscope;·len:·376,·SHA:·850ba699fdb88713a2863754474fed2ff208e8cb1d04b4af9db83b55bb681cc4·...·]-15">)</span><span·class="p">.</span><span·class="w"> |
| 164 | </span><span·class="p">-</span><span·class="na">else</span><span·class="p">.</span><span·class="w"> | 164 | </span><span·class="p">-</span><span·class="na">else</span><span·class="p">.</span><span·class="w"> |
| 165 | </span><span·class="nf">start_link</span><span·class="p"·data-group-id=" | 165 | </span><span·class="nf">start_link</span><span·class="p"·data-group-id="6459352893-18">(</span><span·class="n">Code</span><span·class="p"·data-group-id="6459352893-18">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 166 | ····</span><span·class="nc">gen_statem</span><span·class="p">:</span><span·class="nf">start_link</span><span·class="p"·data-group-id=" | 166 | ····</span><span·class="nc">gen_statem</span><span·class="p">:</span><span·class="nf">start_link</span><span·class="p"·data-group-id="6459352893-19">(</span><span·class="p"·data-group-id="6459352893-20">{</span><span·class="ss">local</span><span·class="p">,</span><span·class="o">?</span><span·class="n">NAME</span><span·class="p"·data-group-id="6459352893-20">}</span><span·class="p">,</sp[·...·truncated·by·diffoscope;·len:·352,·SHA:·4e998c2c680f6fedc65921c79c3b495aea3c23c3117e4aee0a11452a97a00777·...·]-19">)</span><span·class="p">.</span><span·class="w"> |
| 167 | </span><span·class="p">-</span><span·class="na">endif</span><span·class="p">.</span><span·class="w"> | 167 | </span><span·class="p">-</span><span·class="na">endif</span><span·class="p">.</span><span·class="w"> |
| 168 | </span><span·class="w"> | 168 | </span><span·class="w"> |
| 169 | </span><span·class="p">-</span><span·class="na">ifdef</span><span·class="p"·data-group-id=" | 169 | </span><span·class="p">-</span><span·class="na">ifdef</span><span·class="p"·data-group-id="6459352893-22">(</span><span·class="n">BEFORE_REWRITE</span><span·class="p"·data-group-id="6459352893-22">)</span><span·class="p">.</span><span·class="w"> |
| 170 | </span><span·class="nf">button</span><span·class="p"·data-group-id=" | 170 | </span><span·class="nf">button</span><span·class="p"·data-group-id="6459352893-23">(</span><span·class="n">Digit</span><span·class="p"·data-group-id="6459352893-23">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 171 | ····</span><span·class="nc">gen_fsm</span><span·class="p">:</span><span·class="nf">send_event</span><span·class="p"·data-group-id=" | 171 | ····</span><span·class="nc">gen_fsm</span><span·class="p">:</span><span·class="nf">send_event</span><span·class="p"·data-group-id="6459352893-24">(</span><span·class="o">?</span><span·class="n">NAME</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6459352893-25">{</span><span·class="ss">button</span><span·class="p">,</span><span·class="w">·</span><s[·...·truncated·by·diffoscope;·len:·121,·SHA:·98f3a9cb1c1a80bf8935cf1f60564bf8a1d5e7ee170d9ffc0e01aaea47c63e02·...·]-24">)</span><span·class="p">.</span><span·class="w"> |
| 172 | </span><span·class="p">-</span><span·class="na">else</span><span·class="p">.</span><span·class="w"> | 172 | </span><span·class="p">-</span><span·class="na">else</span><span·class="p">.</span><span·class="w"> |
| 173 | </span><span·class="nf">button</span><span·class="p"·data-group-id=" | 173 | </span><span·class="nf">button</span><span·class="p"·data-group-id="6459352893-26">(</span><span·class="n">Digit</span><span·class="p"·data-group-id="6459352893-26">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 174 | ····</span><span·class="nc">gen_statem</span><span·class="p">:</span><span·class="nf">cast</span><span·class="p"·data-group-id=" | 174 | ····</span><span·class="nc">gen_statem</span><span·class="p">:</span><span·class="nf">cast</span><span·class="p"·data-group-id="6459352893-27">(</span><span·class="o">?</span><span·class="n">NAME</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6459352893-28">{</span><span·class="ss">button</span><span·class="p">,</span><span·class="n">Digit</spa[·...·truncated·by·diffoscope;·len:·97,·SHA:·0f8a55d304cf15233b8cfb2f14282d1d9837d28901ac15bfb2e35275707ef881·...·]-27">)</span><span·class="p">.</span><span·class="w"> |
| 175 | ····</span><span·class="c1">%%·send_event·is·asynchronous·and·becomes·a·cast</span><span·class="w"> | 175 | ····</span><span·class="c1">%%·send_event·is·asynchronous·and·becomes·a·cast</span><span·class="w"> |
| 176 | </span><span·class="p">-</span><span·class="na">endif</span><span·class="p">.</span><span·class="w"> | 176 | </span><span·class="p">-</span><span·class="na">endif</span><span·class="p">.</span><span·class="w"> |
| 177 | </span><span·class="w"> | 177 | </span><span·class="w"> |
| 178 | </span><span·class="p">-</span><span·class="na">ifdef</span><span·class="p"·data-group-id=" | 178 | </span><span·class="p">-</span><span·class="na">ifdef</span><span·class="p"·data-group-id="6459352893-29">(</span><span·class="n">BEFORE_REWRITE</span><span·class="p"·data-group-id="6459352893-29">)</span><span·class="p">.</span><span·class="w"> |
| 179 | </span><span·class="nf">stop</span><span·class="p"·data-group-id=" | 179 | </span><span·class="nf">stop</span><span·class="p"·data-group-id="6459352893-30">(</span><span·class="p"·data-group-id="6459352893-30">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 180 | ····</span><span·class="nc">gen_fsm</span><span·class="p">:</span><span·class="nf">sync_send_all_state_event</span><span·class="p"·data-group-id=" | 180 | ····</span><span·class="nc">gen_fsm</span><span·class="p">:</span><span·class="nf">sync_send_all_state_event</span><span·class="p"·data-group-id="6459352893-31">(</span><span·class="o">?</span><span·class="n">NAME</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">stop</span><span·class="p"·data-group-id="6459352893-31">)</span><span·class="p">.</span><span·class="w"> |
| 181 | </span><span·class="p">-</span><span·class="na">else</span><span·class="p">.</span><span·class="w"> | 181 | </span><span·class="p">-</span><span·class="na">else</span><span·class="p">.</span><span·class="w"> |
| 182 | </span><span·class="nf">stop</span><span·class="p"·data-group-id=" | 182 | </span><span·class="nf">stop</span><span·class="p"·data-group-id="6459352893-32">(</span><span·class="p"·data-group-id="6459352893-32">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 183 | ····</span><span·class="nc">gen_statem</span><span·class="p">:</span><span·class="nf">call</span><span·class="p"·data-group-id=" | 183 | ····</span><span·class="nc">gen_statem</span><span·class="p">:</span><span·class="nf">call</span><span·class="p"·data-group-id="6459352893-33">(</span><span·class="o">?</span><span·class="n">NAME</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">stop</span><span·class="p"·data-group-id="6459352893-33">)</span><span·class="p">.</span><span·class="w"> |
| 184 | ····</span><span·class="c1">%%·sync_send·is·synchronous·and·becomes·call</span><span·class="w"> | 184 | ····</span><span·class="c1">%%·sync_send·is·synchronous·and·becomes·call</span><span·class="w"> |
| 185 | ····</span><span·class="c1">%%·all_state·is·handled·by·callback·code·in·gen_statem</span><span·class="w"> | 185 | ····</span><span·class="c1">%%·all_state·is·handled·by·callback·code·in·gen_statem</span><span·class="w"> |
| 186 | </span><span·class="p">-</span><span·class="na">endif</span><span·class="p">.</span><span·class="w"> | 186 | </span><span·class="p">-</span><span·class="na">endif</span><span·class="p">.</span><span·class="w"> |
| 187 | </span><span·class="nf">init</span><span·class="p"·data-group-id=" | 187 | </span><span·class="nf">init</span><span·class="p"·data-group-id="6459352893-34">(</span><span·class="n">Code</span><span·class="p"·data-group-id="6459352893-34">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 188 | ····</span><span·class="nf">do_lock</span><span·class="p"·data-group-id=" | 188 | ····</span><span·class="nf">do_lock</span><span·class="p"·data-group-id="6459352893-35">(</span><span·class="p"·data-group-id="6459352893-35">)</span><span·class="p">,</span><span·class="w"> |
| 189 | ····</span><span·class="n">Data</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 189 | ····</span><span·class="n">Data</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="6459352893-36">#{</span><span·class="ss">code</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="n">Code</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">remaining</span><span·class="w">·</s[·...·truncated·by·diffoscope;·len:·124,·SHA:·cf57d066ae4664fa1e9161da565942c82bc35d1c4b27cdb3544b787ed518f45f·...·]-36">}</span><span·class="p">,</span><span·class="w"> |
| 190 | ····</span><span·class="p"·data-group-id=" | 190 | ····</span><span·class="p"·data-group-id="6459352893-37">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">locked</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Data</span><span·class="p"·data-group-id="6459352893-37">}</span><span·class="p">.</span><span·class="w"> |
| 191 | </span><span·class="w"> | 191 | </span><span·class="w"> |
| 192 | </span><span·class="p">-</span><span·class="na">ifdef</span><span·class="p"·data-group-id=" | 192 | </span><span·class="p">-</span><span·class="na">ifdef</span><span·class="p"·data-group-id="6459352893-38">(</span><span·class="n">BEFORE_REWRITE</span><span·class="p"·data-group-id="6459352893-38">)</span><span·class="p">.</span><span·class="w"> |
| 193 | </span><span·class="p">-</span><span·class="na">else</span><span·class="p">.</span><span·class="w"> | 193 | </span><span·class="p">-</span><span·class="na">else</span><span·class="p">.</span><span·class="w"> |
| 194 | </span><span·class="nf">callback_mode</span><span·class="p"·data-group-id=" | 194 | </span><span·class="nf">callback_mode</span><span·class="p"·data-group-id="6459352893-39">(</span><span·class="p"·data-group-id="6459352893-39">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 195 | ····</span><span·class="ss">state_functions</span><span·class="p">.</span><span·class="w"> | 195 | ····</span><span·class="ss">state_functions</span><span·class="p">.</span><span·class="w"> |
| 196 | </span><span·class="c1">%%·state_functions·mode·is·the·mode·most·similar·to</span><span·class="w"> | 196 | </span><span·class="c1">%%·state_functions·mode·is·the·mode·most·similar·to</span><span·class="w"> |
| 197 | </span><span·class="c1">%%·gen_fsm.·There·is·also·handle_event·mode·which·is</span><span·class="w"> | 197 | </span><span·class="c1">%%·gen_fsm.·There·is·also·handle_event·mode·which·is</span><span·class="w"> |
| 198 | </span><span·class="c1">%%·a·fairly·different·concept.</span><span·class="w"> | 198 | </span><span·class="c1">%%·a·fairly·different·concept.</span><span·class="w"> |
| 199 | </span><span·class="p">-</span><span·class="na">endif</span><span·class="p">.</span><span·class="w"> | 199 | </span><span·class="p">-</span><span·class="na">endif</span><span·class="p">.</span><span·class="w"> |
| 200 | </span><span·class="w"> | 200 | </span><span·class="w"> |
| 201 | </span><span·class="p">-</span><span·class="na">ifdef</span><span·class="p"·data-group-id=" | 201 | </span><span·class="p">-</span><span·class="na">ifdef</span><span·class="p"·data-group-id="6459352893-40">(</span><span·class="n">BEFORE_REWRITE</span><span·class="p"·data-group-id="6459352893-40">)</span><span·class="p">.</span><span·class="w"> |
| 202 | </span><span·class="nf">locked</span><span·class="p"·data-group-id=" | 202 | </span><span·class="nf">locked</span><span·class="p"·data-group-id="6459352893-41">(</span><span·class="p"·data-group-id="6459352893-42">{</span><span·class="ss">button</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Digit</span><span·class="p"·data-group-id="6459352893-42">}</span><span·class="p">,</[·...·truncated·by·diffoscope;·len:·98,·SHA:·1e30ea4136902f915bb63f257982907c654d069019081b927014d7392ee3c9d9·...·]-41">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 203 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nf">analyze_lock</span><span·class="p"·data-group-id=" | 203 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nf">analyze_lock</span><span·class="p"·data-group-id="6459352893-43">(</span><span·class="n">Digit</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Data0</span><span·class="p"·data-group-id="6459352893-43">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 204 | ····</span><span·class="p"·data-group-id=" | 204 | ····</span><span·class="p"·data-group-id="6459352893-44">{</span><span·class="ss">open</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">StateName</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Data</span><span·class="p"·data-group[·...·truncated·by·diffoscope;·len:·15,·SHA:·9efe8af78a9f4f7f4a63199e4205560d6d01be5ada10719d30c9eb6b079b39d3·...·]-44">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 205 | ········</span><span·class="p"·data-group-id=" | 205 | ········</span><span·class="p"·data-group-id="6459352893-45">{</span><span·class="ss">next_state</span><span·class="p">,</span><span·class="w">·</span><span·class="n">StateName</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Data</span><span·class="p">,</span><span·class="w">·</s[·...·truncated·by·diffoscope;·len:·74,·SHA:·523675498203cd682759b149dfbb01ec02da9b5afef802e1367a0788dc6849fd·...·]-45">}</span><span·class="p">;</span><span·class="w"> |
| 206 | ····</span><span·class="p"·data-group-id=" | 206 | ····</span><span·class="p"·data-group-id="6459352893-46">{</span><span·class="n">StateName</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Data</span><span·class="p"·data-group-id="6459352893-46">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 207 | ········</span><span·class="p"·data-group-id=" | 207 | ········</span><span·class="p"·data-group-id="6459352893-47">{</span><span·class="ss">next_state</span><span·class="p">,</span><span·class="w">·</span><span·class="n">StateName</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Data</span><span·class="p"·data-group-id="6459352893-47">}</span><span·class="w"> |
| 208 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> | 208 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> |
| 209 | </span><span·class="p">-</span><span·class="na">else</span><span·class="p">.</span><span·class="w"> | 209 | </span><span·class="p">-</span><span·class="na">else</span><span·class="p">.</span><span·class="w"> |
| 210 | </span><span·class="nf">locked</span><span·class="p"·data-group-id=" | 210 | </span><span·class="nf">locked</span><span·class="p"·data-group-id="6459352893-48">(</span><span·class="ss">cast</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6459352893-49">{</span><span·class="ss">button</span><span·class="p">,</span><span·class="n">Digit</span><span·class="p"·data-[·...·truncated·by·diffoscope;·len:·150,·SHA:·1dd0543ce5c126250efc12bedb2778f08979c21eeefe49079afc8d806e61fdcc·...·]-48">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 211 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nf">analyze_lock</span><span·class="p"·data-group-id=" | 211 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nf">analyze_lock</span><span·class="p"·data-group-id="6459352893-50">(</span><span·class="n">Digit</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Data0</span><span·class="p"·data-group-id="6459352893-50">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 212 | ····</span><span·class="p"·data-group-id=" | 212 | ····</span><span·class="p"·data-group-id="6459352893-51">{</span><span·class="ss">open</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">StateName</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Data</span><span·class="p"·data-group[·...·truncated·by·diffoscope;·len:·15,·SHA:·9efe8af78a9f4f7f4a63199e4205560d6d01be5ada10719d30c9eb6b079b39d3·...·]-51">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 213 | ········</span><span·class="p"·data-group-id=" | 213 | ········</span><span·class="p"·data-group-id="6459352893-52">{</span><span·class="ss">next_state</span><span·class="p">,</span><span·class="w">·</span><span·class="n">StateName</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Data</span><span·class="p">,</span><span·class="w">·</s[·...·truncated·by·diffoscope;·len:·74,·SHA:·523675498203cd682759b149dfbb01ec02da9b5afef802e1367a0788dc6849fd·...·]-52">}</span><span·class="p">;</span><span·class="w"> |
| 214 | ····</span><span·class="p"·data-group-id=" | 214 | ····</span><span·class="p"·data-group-id="6459352893-53">{</span><span·class="n">StateName</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Data</span><span·class="p"·data-group-id="6459352893-53">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 215 | ········</span><span·class="p"·data-group-id=" | 215 | ········</span><span·class="p"·data-group-id="6459352893-54">{</span><span·class="ss">next_state</span><span·class="p">,</span><span·class="w">·</span><span·class="n">StateName</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Data</span><span·class="p"·data-group-id="6459352893-54">}</span><span·class="w"> |
| 216 | ····</span><span·class="k">end</span><span·class="p">;</span><span·class="w"> | 216 | ····</span><span·class="k">end</span><span·class="p">;</span><span·class="w"> |
| 217 | </span><span·class="nf">locked</span><span·class="p"·data-group-id=" | 217 | </span><span·class="nf">locked</span><span·class="p"·data-group-id="6459352893-55">(</span><span·class="p"·data-group-id="6459352893-56">{</span><span·class="ss">call</span><span·class="p">,</span><span·class="w">·</span><span·class="n">From</span><span·class="p"·data-group-id="6459352893-56">}</span><span·class="p">,</spa[·...·truncated·by·diffoscope;·len:·168,·SHA:·26123afee2db35e907922738abc9c811dbfd38f3e0c8335370ebfaef91cabed9·...·]-55">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 218 | ····</span><span·class="nf">handle_call</span><span·class="p"·data-group-id=" | 218 | ····</span><span·class="nf">handle_call</span><span·class="p"·data-group-id="6459352893-57">(</span><span·class="n">From</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Msg</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Data</span><span·class="p"·data-group-id="6459352893-57">)</span><span·class="p">;</span><span·class="w"> |
| 219 | </span><span·class="nf">locked</span><span·class="p"·data-group-id=" | 219 | </span><span·class="nf">locked</span><span·class="p"·data-group-id="6459352893-58">(</span><span·class="p"·data-group-id="6459352893-59">{</span><span·class="ss">info</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Msg</span><span·class="p"·data-group-id="6459352893-59">}</span><span·class="p">,</span[·...·truncated·by·diffoscope;·len:·173,·SHA:·a6c4692c2dabc5183c3d51c6054a9460916f20e4575fe6c9e5741fa584e824af·...·]-58">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 220 | ····</span><span·class="nf">handle_info</span><span·class="p"·data-group-id=" | 220 | ····</span><span·class="nf">handle_info</span><span·class="p"·data-group-id="6459352893-60">(</span><span·class="n">Msg</span><span·class="p">,</span><span·class="w">·</span><span·class="n">StateName</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Data</span><span·class="p"·data-group-id="6459352893-60">)</span><span·class="p">.</span><span·class="w"> |
| 221 | </span><span·class="c1">%%·Arity·differs</span><span·class="w"> | 221 | </span><span·class="c1">%%·Arity·differs</span><span·class="w"> |
| 222 | </span><span·class="c1">%%·All·state·events·are·dispatched·to·handle_call·and·handle_info·help</span><span·class="w"> | 222 | </span><span·class="c1">%%·All·state·events·are·dispatched·to·handle_call·and·handle_info·help</span><span·class="w"> |
| 223 | </span><span·class="c1">%%·functions.·If·you·want·to·handle·a·call·or·cast·event·specifically</span><span·class="w"> | 223 | </span><span·class="c1">%%·functions.·If·you·want·to·handle·a·call·or·cast·event·specifically</span><span·class="w"> |
| 224 | </span><span·class="c1">%%·for·this·state·you·would·add·a·special·clause·for·it·above.</span><span·class="w"> | 224 | </span><span·class="c1">%%·for·this·state·you·would·add·a·special·clause·for·it·above.</span><span·class="w"> |
| 225 | </span><span·class="p">-</span><span·class="na">endif</span><span·class="p">.</span><span·class="w"> | 225 | </span><span·class="p">-</span><span·class="na">endif</span><span·class="p">.</span><span·class="w"> |
| 226 | </span><span·class="w"> | 226 | </span><span·class="w"> |
| 227 | </span><span·class="p">-</span><span·class="na">ifdef</span><span·class="p"·data-group-id=" | 227 | </span><span·class="p">-</span><span·class="na">ifdef</span><span·class="p"·data-group-id="6459352893-61">(</span><span·class="n">BEFORE_REWRITE</span><span·class="p"·data-group-id="6459352893-61">)</span><span·class="p">.</span><span·class="w"> |
| 228 | </span><span·class="nf">open</span><span·class="p"·data-group-id=" | 228 | </span><span·class="nf">open</span><span·class="p"·data-group-id="6459352893-62">(</span><span·class="ss">timeout</span><span·class="p">,</span><span·class="w">·</span><span·class="n">State</span><span·class="p"·data-group-id="6459352893-62">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 229 | ·····</span><span·class="nf">do_lock</span><span·class="p"·data-group-id=" | 229 | ·····</span><span·class="nf">do_lock</span><span·class="p"·data-group-id="6459352893-63">(</span><span·class="p"·data-group-id="6459352893-63">)</span><span·class="p">,</span><span·class="w"> |
| 230 | ····</span><span·class="p"·data-group-id=" | 230 | ····</span><span·class="p"·data-group-id="6459352893-64">{</span><span·class="ss">next_state</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">locked</span><span·class="p">,</span><span·class="w">·</span><span·class="n">State</span><span·class="p"·data-group-id="6459352893-64">}</span><span·class="p">;</span><span·class="w"> |
| 231 | </span><span·class="nf">open</span><span·class="p"·data-group-id=" | 231 | </span><span·class="nf">open</span><span·class="p"·data-group-id="6459352893-65">(</span><span·class="p"·data-group-id="6459352893-66">{</span><span·class="ss">button</span><span·class="p">,</span><span·class="p">_</span><span·class="p"·data-group-id="6459352893-66">}</span><span·class="p">,</span><span·class="w">·</span[·...·truncated·by·diffoscope;·len:·69,·SHA:·51d05589590d3b7d18e208d202e8da9e9d65c5884d7bc36741a9b3249e69d2d9·...·]-65">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 232 | ····</span><span·class="p"·data-group-id=" | 232 | ····</span><span·class="p"·data-group-id="6459352893-67">{</span><span·class="ss">next_state</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">locked</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Data</span><span·class="p"·data-group-id="6459352893-67">}</span><span·class="p">.</span><span·class="w"> |
| 233 | </span><span·class="p">-</span><span·class="na">else</span><span·class="p">.</span><span·class="w"> | 233 | </span><span·class="p">-</span><span·class="na">else</span><span·class="p">.</span><span·class="w"> |
| 234 | </span><span·class="nf">open</span><span·class="p"·data-group-id=" | 234 | </span><span·class="nf">open</span><span·class="p"·data-group-id="6459352893-68">(</span><span·class="ss">timeout</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Data</span><span·class="p"·data-group-id="6459352893-68">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 235 | ····</span><span·class="nf">do_lock</span><span·class="p"·data-group-id=" | 235 | ····</span><span·class="nf">do_lock</span><span·class="p"·data-group-id="6459352893-69">(</span><span·class="p"·data-group-id="6459352893-69">)</span><span·class="p">,</span><span·class="w"> |
| 236 | ····</span><span·class="p"·data-group-id=" | 236 | ····</span><span·class="p"·data-group-id="6459352893-70">{</span><span·class="ss">next_state</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">locked</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Data</span><span·class="p"·data-group-id="6459352893-70">}</span><span·class="p">;</span><span·class="w"> |
| 237 | </span><span·class="nf">open</span><span·class="p"·data-group-id=" | 237 | </span><span·class="nf">open</span><span·class="p"·data-group-id="6459352893-71">(</span><span·class="ss">cast</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6459352893-72">{</span><span·class="ss">button</span><span·class="p">,</span><span·class="p">_</span><span·class="p"·data-grou[·...·truncated·by·diffoscope;·len:·145,·SHA:·7b1f6048cff7074cbcf63ef08ac423353b362248694d923d6c474d892e06d12a·...·]-71">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 238 | ····</span><span·class="p"·data-group-id=" | 238 | ····</span><span·class="p"·data-group-id="6459352893-73">{</span><span·class="ss">next_state</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">locked</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Data</span><span·class="p"·data-group-id="6459352893-73">}</span><span·class="p">;</span><span·class="w"> |
| 239 | </span><span·class="nf">open</span><span·class="p"·data-group-id=" | 239 | </span><span·class="nf">open</span><span·class="p"·data-group-id="6459352893-74">(</span><span·class="p"·data-group-id="6459352893-75">{</span><span·class="ss">call</span><span·class="p">,</span><span·class="w">·</span><span·class="n">From</span><span·class="p"·data-group-id="6459352893-75">}</span><span·class="p">,</spa[·...·truncated·by·diffoscope;·len:·168,·SHA:·26123afee2db35e907922738abc9c811dbfd38f3e0c8335370ebfaef91cabed9·...·]-74">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 240 | ····</span><span·class="nf">handle_call</span><span·class="p"·data-group-id=" | 240 | ····</span><span·class="nf">handle_call</span><span·class="p"·data-group-id="6459352893-76">(</span><span·class="n">From</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Msg</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Data</span><span·class="p"·data-group-id="6459352893-76">)</span><span·class="p">;</span><span·class="w"> |
| 241 | </span><span·class="nf">open</span><span·class="p"·data-group-id=" | 241 | </span><span·class="nf">open</span><span·class="p"·data-group-id="6459352893-77">(</span><span·class="ss">info</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Msg</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Data</span><span·class="p"·data-group-id="6459352893-77">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 242 | ····</span><span·class="nf">handle_info</span><span·class="p"·data-group-id=" | 242 | ····</span><span·class="nf">handle_info</span><span·class="p"·data-group-id="6459352893-78">(</span><span·class="n">Msg</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">open</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Data</span><span·class="p"·data-group-id="6459352893-78">)</span><span·class="p">.</span><span·class="w"> |
| 243 | </span><span·class="c1">%%·Arity·differs</span><span·class="w"> | 243 | </span><span·class="c1">%%·Arity·differs</span><span·class="w"> |
| 244 | </span><span·class="c1">%%·All·state·events·are·dispatched·to·handle_call·and·handle_info·help</span><span·class="w"> | 244 | </span><span·class="c1">%%·All·state·events·are·dispatched·to·handle_call·and·handle_info·help</span><span·class="w"> |
| 245 | </span><span·class="c1">%%·functions.·If·you·want·to·handle·a·call·or·cast·event·specifically</span><span·class="w"> | 245 | </span><span·class="c1">%%·functions.·If·you·want·to·handle·a·call·or·cast·event·specifically</span><span·class="w"> |
| 246 | </span><span·class="c1">%%·for·this·state·you·would·add·a·special·clause·for·it·above.</span><span·class="w"> | 246 | </span><span·class="c1">%%·for·this·state·you·would·add·a·special·clause·for·it·above.</span><span·class="w"> |
| 247 | </span><span·class="p">-</span><span·class="na">endif</span><span·class="p">.</span><span·class="w"> | 247 | </span><span·class="p">-</span><span·class="na">endif</span><span·class="p">.</span><span·class="w"> |
| 248 | </span><span·class="w"> | 248 | </span><span·class="w"> |
| 249 | </span><span·class="p">-</span><span·class="na">ifdef</span><span·class="p"·data-group-id=" | 249 | </span><span·class="p">-</span><span·class="na">ifdef</span><span·class="p"·data-group-id="6459352893-79">(</span><span·class="n">BEFORE_REWRITE</span><span·class="p"·data-group-id="6459352893-79">)</span><span·class="p">.</span><span·class="w"> |
| 250 | </span><span·class="nf">handle_sync_event</span><span·class="p"·data-group-id=" | 250 | </span><span·class="nf">handle_sync_event</span><span·class="p"·data-group-id="6459352893-80">(</span><span·class="ss">stop</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="n">From</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="n">StateName</span><s[·...·truncated·by·diffoscope;·len:·114,·SHA:·abadfabb8bd9e256f077167585f3bbee249799713367c88da4d682abf773ac64·...·]-80">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 251 | ····</span><span·class="p"·data-group-id=" | 251 | ····</span><span·class="p"·data-group-id="6459352893-81">{</span><span·class="ss">stop</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">normal</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span[·...·truncated·by·diffoscope;·len:·63,·SHA:·7fbff0f4c9bcd8a46b42b9d15c8e04614c93b9fc5f7f2e8b4e4397151b00b593·...·]-81">}</span><span·class="p">.</span><span·class="w"> |
| 252 | </span><span·class="nf">handle_event</span><span·class="p"·data-group-id=" | 252 | </span><span·class="nf">handle_event</span><span·class="p"·data-group-id="6459352893-82">(</span><span·class="n">Event</span><span·class="p">,</span><span·class="w">·</span><span·class="n">StateName</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Data</span><span·class="p"·data-group-id="6459352893-82">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 253 | ····</span><span·class="p"·data-group-id=" | 253 | ····</span><span·class="p"·data-group-id="6459352893-83">{</span><span·class="ss">stop</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6459352893-84">{</span><span·class="ss">shutdown</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-gr[·...·truncated·by·diffoscope;·len:·445,·SHA:·c023c0861693fbfe92164e294e1332a3b9bb34f7c837c10a4a337a79ed367ab1·...·]-83">}</span><span·class="p">.</span><span·class="w"> |
| 254 | </span><span·class="nf">handle_info</span><span·class="p"·data-group-id=" | 254 | </span><span·class="nf">handle_info</span><span·class="p"·data-group-id="6459352893-86">(</span><span·class="n">Info</span><span·class="p">,</span><span·class="w">·</span><span·class="n">StateName</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Data</span><span·class="p"·data-group-id="6459352893-86">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
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| Offset 1365, 23 lines modified | Offset 1365, 23 lines modified | ||
| 1365 | format/limit·the·server·state·for·debugging·and·logging·purposes.</p><p>It·is·called·in·the·following·situations:</p><ul><li><a·href="sys.html#get_status/1"><code·class="inline">sys:get_status/1,2</code></a>·is·invoked | 1365 | format/limit·the·server·state·for·debugging·and·logging·purposes.</p><p>It·is·called·in·the·following·situations:</p><ul><li><a·href="sys.html#get_status/1"><code·class="inline">sys:get_status/1,2</code></a>·is·invoked |
| 1366 | to·get·the·<code·class="inline">gen_server</code>·status.</li><li>The·<code·class="inline">gen_server</code>·process·terminates·abnormally·and·logs·an·error.</li></ul><p>This·callback·is·used·to·limit·the·status·of·the·process·returned·by | 1366 | to·get·the·<code·class="inline">gen_server</code>·status.</li><li>The·<code·class="inline">gen_server</code>·process·terminates·abnormally·and·logs·an·error.</li></ul><p>This·callback·is·used·to·limit·the·status·of·the·process·returned·by |
| 1367 | <a·href="sys.html#get_status/1"><code·class="inline">sys:get_status/1,2</code></a>·or·sent·to·<a·href="../../../../lib/kernel-10.3/doc/html/logger.html"><code·class="inline">logger</code></a>.</p><p>The·callback·gets·a·map·<code·class="inline">Status</code>·describing·the·current·status | 1367 | <a·href="sys.html#get_status/1"><code·class="inline">sys:get_status/1,2</code></a>·or·sent·to·<a·href="../../../../lib/kernel-10.3/doc/html/logger.html"><code·class="inline">logger</code></a>.</p><p>The·callback·gets·a·map·<code·class="inline">Status</code>·describing·the·current·status |
| 1368 | and·shall·return·a·map·<code·class="inline">NewStatus</code>·with·the·same·keys, | 1368 | and·shall·return·a·map·<code·class="inline">NewStatus</code>·with·the·same·keys, |
| 1369 | but·it·may·transform·some·values.</p><p>Two·possible·use·cases·for·this·callback·is·to·remove | 1369 | but·it·may·transform·some·values.</p><p>Two·possible·use·cases·for·this·callback·is·to·remove |
| 1370 | sensitive·information·from·the·state·to·prevent·it·from·being·printed | 1370 | sensitive·information·from·the·state·to·prevent·it·from·being·printed |
| 1371 | in·log·files,·or·to·compact·large·irrelevant·status·items | 1371 | in·log·files,·or·to·compact·large·irrelevant·status·items |
| 1372 | that·would·only·clutter·the·logs.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">format_status</span><span·class="p"·data-group-id=" | 1372 | that·would·only·clutter·the·logs.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">format_status</span><span·class="p"·data-group-id="2611637866-1">(</span><span·class="n">Status</span><span·class="p"·data-group-id="2611637866-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 1373 | ··</span><span·class="nc">maps</span><span·class="p">:</span><span·class="nf">map</span><span·class="p"·data-group-id=" | 1373 | ··</span><span·class="nc">maps</span><span·class="p">:</span><span·class="nf">map</span><span·class="p"·data-group-id="2611637866-2">(</span><span·class="w"> |
| 1374 | ····</span><span·class="nf">fun</span><span·class="p"·data-group-id=" | 1374 | ····</span><span·class="nf">fun</span><span·class="p"·data-group-id="2611637866-3">(</span><span·class="ss">state</span><span·class="p">,</span><span·class="n">State</span><span·class="p"·data-group-id="2611637866-3">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 1375 | ············</span><span·class="nc">maps</span><span·class="p">:</span><span·class="nf">remove</span><span·class="p"·data-group-id=" | 1375 | ············</span><span·class="nc">maps</span><span·class="p">:</span><span·class="nf">remove</span><span·class="p"·data-group-id="2611637866-4">(</span><span·class="ss">private_key</span><span·class="p">,</span><span·class="w">·</span><span·class="n">State</span><span·class="p"·data-group-id="2611637866-4">)</span><span·class="p">;</span><span·class="w"> |
| 1376 | ·······</span><span·class="p"·data-group-id=" | 1376 | ·······</span><span·class="p"·data-group-id="2611637866-5">(</span><span·class="ss">message</span><span·class="p">,</span><span·class="p"·data-group-id="2611637866-6">{</span><span·class="ss">password</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="n">Pass</[·...·truncated·by·diffoscope;·len:·99,·SHA:·ecf33d6b82abfbc19aed6d32ac7760bb0b5c93d2c22bc6374926fc3565d01dea·...·]-5">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 1377 | ············</span><span·class="p"·data-group-id=" | 1377 | ············</span><span·class="p"·data-group-id="2611637866-7">{</span><span·class="ss">password</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">removed</span><span·class="p"·data-group-id="2611637866-7">}</span><span·class="p">;</span><span·class="w"> |
| 1378 | ·······</span><span·class="p"·data-group-id=" | 1378 | ·······</span><span·class="p"·data-group-id="2611637866-8">(</span><span·class="p">_</span><span·class="p">,</span><span·class="n">Value</span><span·class="p"·data-group-id="2611637866-8">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 1379 | ············</span><span·class="n">Value</span><span·class="w"> | 1379 | ············</span><span·class="n">Value</span><span·class="w"> |
| 1380 | ····</span><span·class="k">end</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Status</span><span·class="p"·data-group-id=" | 1380 | ····</span><span·class="k">end</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Status</span><span·class="p"·data-group-id="2611637866-2">)</span><span·class="p">.</span></code></pre><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>This·callback·is·optional,·so·callback·modules·need·not·export·it.·The |
| 1381 | <code·class="inline">gen_server</code>·module·provides·a·default·implementation | 1381 | <code·class="inline">gen_server</code>·module·provides·a·default·implementation |
| 1382 | of·this·function·that·returns·the·callback·module·state.</p><p>If·this·callback·is·exported·but·fails, | 1382 | of·this·function·that·returns·the·callback·module·state.</p><p>If·this·callback·is·exported·but·fails, |
| 1383 | to·hide·possibly·sensitive·data, | 1383 | to·hide·possibly·sensitive·data, |
| 1384 | the·default·function·will·instead·return·the·fact·that | 1384 | the·default·function·will·instead·return·the·fact·that |
| 1385 | <a·href="#c:format_status/1"><code·class="inline">Module:format_status/1</code></a>·has·crashed.</p></section> | 1385 | <a·href="#c:format_status/1"><code·class="inline">Module:format_status/1</code></a>·has·crashed.</p></section> |
| 1386 | ··</section> | 1386 | ··</section> |
| 1387 | </section> | 1387 | </section> |
| Offset 2986, 15 lines modified | Offset 2986, 15 lines modified | ||
| 2986 | ······<p·class="built-using"> | 2986 | ······<p·class="built-using"> |
| 2987 | ········Built·using | 2987 | ········Built·using |
| 2988 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 2988 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 2989 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 2989 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 2990 | ······</p> | 2990 | ······</p> |
| 2991 | <p>Copyright·©·1996-202 | 2991 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 2992 | ····</footer> | 2992 | ····</footer> |
| 2993 | ··</div> | 2993 | ··</div> |
| 2994 | </main> | 2994 | </main> |
| 2995 | </div> | 2995 | </div> |
| 2996 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 2996 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 2997 | ··<script> | 2997 | ··<script> |
| 2998 | ··let·initialized·=·false; | 2998 | ··let·initialized·=·false; |
| Offset 172, 15 lines modified | Offset 172, 15 lines modified | ||
| 172 | </span><span·class="nc">gen_statem</span><span·class="p">:</span><span·class="ss">send_request</span><span·class="w"> | 172 | </span><span·class="nc">gen_statem</span><span·class="p">:</span><span·class="ss">send_request</span><span·class="w"> |
| 173 | </span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nb">send</span><span·class="w"> | 173 | </span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nb">send</span><span·class="w"> |
| 174 | </span><span·class="nc">erlang</span><span·class="p">:</span><span·class="ss">'!'</span><span·class="w">············</span><span·class="o">--</span><span·class="o">--</span><span·class="p">-></span><span·class="w">·</span><span·class="n">Module</span><span·class="p">:</span><span·class="n">StateName</span><span·class="o">/</span><span·class="mi">3</span><span·class="w"> | 174 | </span><span·class="nc">erlang</span><span·class="p">:</span><span·class="ss">'!'</span><span·class="w">············</span><span·class="o">--</span><span·class="o">--</span><span·class="p">-></span><span·class="w">·</span><span·class="n">Module</span><span·class="p">:</span><span·class="n">StateName</span><span·class="o">/</span><span·class="mi">3</span><span·class="w"> |
| 175 | ···················</span><span·class="ow">or</span><span·class="w">·</span><span·class="o">--</span><span·class="o">--</span><span·class="p">-></span><span·class="w">·</span><span·class="n">Module</span><span·class="p">:</span><span·class="ss">handle_event</span><span·class="p">/</span><span·class="mi">4</span><span·class="w"> | 175 | ···················</span><span·class="ow">or</span><span·class="w">·</span><span·class="o">--</span><span·class="o">--</span><span·class="p">-></span><span·class="w">·</span><span·class="n">Module</span><span·class="p">:</span><span·class="ss">handle_event</span><span·class="p">/</span><span·class="mi">4</span><span·class="w"> |
| 176 | ···················</span><span·class="ss">depending</span><span·class="w">·</span><span·class="ss">on</span><span·class="w">·</span><span·class="ss">callback</span><span·class="w">·</span><span·class="ss">mode</span><span·class="w"> | 176 | ···················</span><span·class="ss">depending</span><span·class="w">·</span><span·class="ss">on</span><span·class="w">·</span><span·class="ss">callback</span><span·class="w">·</span><span·class="ss">mode</span><span·class="w"> |
| 177 | </span><span·class="n">Release</span><span·class="w">·</span><span·class="ss">upgrade</span><span·class="o">/</span><span·class="nf">downgrade</span><span·class="w"> | 177 | </span><span·class="n">Release</span><span·class="w">·</span><span·class="ss">upgrade</span><span·class="o">/</span><span·class="nf">downgrade</span><span·class="w"> |
| 178 | </span><span·class="p"·data-group-id=" | 178 | </span><span·class="p"·data-group-id="3007440873-1">(</span><span·class="ss">code</span><span·class="w">·</span><span·class="ss">change</span><span·class="p"·data-group-id="3007440873-1">)</span><span·class="w"> |
| 179 | ······················</span><span·class="o">--</span><span·class="o">--</span><span·class="p">-></span><span·class="w">·</span><span·class="n">Module</span><span·class="p">:</span><span·class="ss">code_change</span><span·class="p">/</span><span·class="mi">4</span></code></pre><h4·id="state-callback">State·callback</h4><p>The·<em>state·callback</em>·for·a·specific·<a·href="#t:state/0">state</a>·in·a·<code·class="inline">gen_statem</code> | 179 | ······················</span><span·class="o">--</span><span·class="o">--</span><span·class="p">-></span><span·class="w">·</span><span·class="n">Module</span><span·class="p">:</span><span·class="ss">code_change</span><span·class="p">/</span><span·class="mi">4</span></code></pre><h4·id="state-callback">State·callback</h4><p>The·<em>state·callback</em>·for·a·specific·<a·href="#t:state/0">state</a>·in·a·<code·class="inline">gen_statem</code> |
| 180 | is·the·callback·function·that·is·called·for·all·events·in·this·state. | 180 | is·the·callback·function·that·is·called·for·all·events·in·this·state. |
| 181 | It·is·selected·depending·on·which·<a·href="#t:callback_mode/0"><em>callback·mode</em></a> | 181 | It·is·selected·depending·on·which·<a·href="#t:callback_mode/0"><em>callback·mode</em></a> |
| 182 | that·the·callback·module·defines·with·the·callback·function | 182 | that·the·callback·module·defines·with·the·callback·function |
| 183 | <a·href="#c:callback_mode/0"><code·class="inline">Module:callback_mode/0</code></a>.</p><p><a·href=""·id="state_functions"></a> | 183 | <a·href="#c:callback_mode/0"><code·class="inline">Module:callback_mode/0</code></a>.</p><p><a·href=""·id="state_functions"></a> |
| 184 | When·the·<a·href="#t:callback_mode/0"><em>callback·mode</em></a>·is·<code·class="inline">state_functions</code>, | 184 | When·the·<a·href="#t:callback_mode/0"><em>callback·mode</em></a>·is·<code·class="inline">state_functions</code>, |
| 185 | the·state·must·be·an·atom·and·is·used·as·the·<em>state·callback</em>·name; | 185 | the·state·must·be·an·atom·and·is·used·as·the·<em>state·callback</em>·name; |
| Offset 298, 105 lines modified | Offset 298, 105 lines modified | ||
| 298 | the·current·count·value.</li><li>Unknown·events·are·ignored·and·discarded.</li><li>There·is·boilerplate·code·for·start,·stop,·terminate,·code·change, | 298 | the·current·count·value.</li><li>Unknown·events·are·ignored·and·discarded.</li><li>There·is·boilerplate·code·for·start,·stop,·terminate,·code·change, |
| 299 | init,·to·set·the·callback·mode·to·<code·class="inline">state_functions</code>,·etc...</li></ul><h3·id="module-pushbutton-code"·class="section-heading"> | 299 | init,·to·set·the·callback·mode·to·<code·class="inline">state_functions</code>,·etc...</li></ul><h3·id="module-pushbutton-code"·class="section-heading"> |
| 300 | ··<a·href="#module-pushbutton-code"·class="hover-link"> | 300 | ··<a·href="#module-pushbutton-code"·class="hover-link"> |
| 301 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 301 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 302 | ··</a> | 302 | ··</a> |
| 303 | ··<span·class="text">Pushbutton·Code</span> | 303 | ··<span·class="text">Pushbutton·Code</span> |
| 304 | </h3> | 304 | </h3> |
| 305 | <p>The·following·is·the·complete·callback·module·file·<code·class="inline">pushbutton.erl</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 305 | <p>The·following·is·the·complete·callback·module·file·<code·class="inline">pushbutton.erl</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="7084333821-1">(</span><span·class="ss">pushbutton</span><span·class="p"·data-group-id="7084333821-1">)</span><span·class="p">.</span><span·class="w"> |
| 306 | </span><span·class="p">-</span><span·class="na">behaviour</span><span·class="p"·data-group-id=" | 306 | </span><span·class="p">-</span><span·class="na">behaviour</span><span·class="p"·data-group-id="7084333821-2">(</span><span·class="ss">gen_statem</span><span·class="p"·data-group-id="7084333821-2">)</span><span·class="p">.</span><span·class="w"> |
| 307 | </span><span·class="w"> | 307 | </span><span·class="w"> |
| 308 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 308 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="7084333821-3">(</span><span·class="p"·data-group-id="7084333821-4">[</span><span·class="ss">start</span><span·class="p">/</span><span·class="mi">0</span><span·class="p">,</span><span·class="ss">push</span><span·class="p">/</span><span·class="mi">0</span><s[·...·truncated·by·diffoscope;·len:·299,·SHA:·d89d90a269770975a51760e05d7cc735b03acb3723a17c96fc110a413cbab44c·...·]-3">)</span><span·class="p">.</span><span·class="w"> |
| 309 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 309 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="7084333821-5">(</span><span·class="p"·data-group-id="7084333821-6">[</span><span·class="ss">terminate</span><span·class="p">/</span><span·class="mi">3</span><span·class="p">,</span><span·class="ss">code_change</span><span·class="p">/</span><span·class="mi"[·...·truncated·by·diffoscope;·len:·314,·SHA:·e002da134db6b847856778240cef687676ea8ecdf49723e157cd7e27ea5e888a·...·]-5">)</span><span·class="p">.</span><span·class="w"> |
| 310 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 310 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="7084333821-7">(</span><span·class="p"·data-group-id="7084333821-8">[</span><span·class="ss">on</span><span·class="p">/</span><span·class="mi">3</span><span·class="p">,</span><span·class="ss">off</span><span·class="p">/</span><span·class="mi">3</span><span·[·...·truncated·by·diffoscope;·len:·88,·SHA:·58852e175a85b16e42b920f0507ca670c6ba8540e9ec4c99fe094b7617d9a70b·...·]-7">)</span><span·class="p">.</span><span·class="w"> |
| 311 | </span><span·class="nf">name</span><span·class="p"·data-group-id=" | 311 | </span><span·class="nf">name</span><span·class="p"·data-group-id="7084333821-9">(</span><span·class="p"·data-group-id="7084333821-9">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">pushbutton_statem</span><span·class="p">.</span><span·class="w">·</span><span·class="c1">%·The·registered·server·name</span><span·class="w"> |
| 312 | </span><span·class="c1">%%·API.··This·example·uses·a·registered·name·name()</span><span·class="w"> | 312 | </span><span·class="c1">%%·API.··This·example·uses·a·registered·name·name()</span><span·class="w"> |
| 313 | </span><span·class="c1">%%·and·does·not·link·to·the·caller.</span><span·class="w"> | 313 | </span><span·class="c1">%%·and·does·not·link·to·the·caller.</span><span·class="w"> |
| 314 | </span><span·class="nf">start</span><span·class="p"·data-group-id=" | 314 | </span><span·class="nf">start</span><span·class="p"·data-group-id="7084333821-10">(</span><span·class="p"·data-group-id="7084333821-10">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 315 | ····</span><span·class="nc">gen_statem</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id=" | 315 | ····</span><span·class="nc">gen_statem</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id="7084333821-11">(</span><span·class="p"·data-group-id="7084333821-12">{</span><span·class="ss">local</span><span·class="p">,</span><span·class="nf">name</span><span·class="p"·data-group-id="7084333821-13">(</span><span·class="p"·data-group-id="7084333821-13[·...·truncated·by·diffoscope;·len:·518,·SHA:·81ff92c70288fb15f10678093d7e6728ff9369ea054d99e2855a56f175b08cbc·...·]-11">)</span><span·class="p">.</span><span·class="w"> |
| 316 | </span><span·class="nf">push</span><span·class="p"·data-group-id=" | 316 | </span><span·class="nf">push</span><span·class="p"·data-group-id="7084333821-16">(</span><span·class="p"·data-group-id="7084333821-16">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 317 | ····</span><span·class="nc">gen_statem</span><span·class="p">:</span><span·class="nf">call</span><span·class="p"·data-group-id=" | 317 | ····</span><span·class="nc">gen_statem</span><span·class="p">:</span><span·class="nf">call</span><span·class="p"·data-group-id="7084333821-17">(</span><span·class="nf">name</span><span·class="p"·data-group-id="7084333821-18">(</span><span·class="p"·data-group-id="7084333821-18">)</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">push</span><span·class="p"·data-[·...·truncated·by·diffoscope;·len:·20,·SHA:·b432e9894e734d0501912183c0c7e3aa36724fce436b7b80d733ec411bd96406·...·]-17">)</span><span·class="p">.</span><span·class="w"> |
| 318 | </span><span·class="nf">get_count</span><span·class="p"·data-group-id=" | 318 | </span><span·class="nf">get_count</span><span·class="p"·data-group-id="7084333821-19">(</span><span·class="p"·data-group-id="7084333821-19">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 319 | ····</span><span·class="nc">gen_statem</span><span·class="p">:</span><span·class="nf">call</span><span·class="p"·data-group-id=" | 319 | ····</span><span·class="nc">gen_statem</span><span·class="p">:</span><span·class="nf">call</span><span·class="p"·data-group-id="7084333821-20">(</span><span·class="nf">name</span><span·class="p"·data-group-id="7084333821-21">(</span><span·class="p"·data-group-id="7084333821-21">)</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">get_count</span><span·class="p"·[·...·truncated·by·diffoscope;·len:·25,·SHA:·c4656cffb050721cb11c6fe53e953a5ea2df2c95b3c468d3e9251f2efb76bb46·...·]-20">)</span><span·class="p">.</span><span·class="w"> |
| 320 | </span><span·class="nf">stop</span><span·class="p"·data-group-id=" | 320 | </span><span·class="nf">stop</span><span·class="p"·data-group-id="7084333821-22">(</span><span·class="p"·data-group-id="7084333821-22">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 321 | ····</span><span·class="nc">gen_statem</span><span·class="p">:</span><span·class="nf">stop</span><span·class="p"·data-group-id=" | 321 | ····</span><span·class="nc">gen_statem</span><span·class="p">:</span><span·class="nf">stop</span><span·class="p"·data-group-id="7084333821-23">(</span><span·class="nf">name</span><span·class="p"·data-group-id="7084333821-24">(</span><span·class="p"·data-group-id="7084333821-24">)</span><span·class="p"·data-group-id="7084333821-23">)</span><span·class="p">.</span><span·class="w"> |
| 322 | </span><span·class="c1">%%·Mandatory·callback·functions</span><span·class="w"> | 322 | </span><span·class="c1">%%·Mandatory·callback·functions</span><span·class="w"> |
| 323 | </span><span·class="nf">terminate</span><span·class="p"·data-group-id=" | 323 | </span><span·class="nf">terminate</span><span·class="p"·data-group-id="7084333821-25">(</span><span·class="p">_</span><span·class="n">Reason</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="n">State</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·cl[·...·truncated·by·diffoscope;·len:·60,·SHA:·4c3cf90fce19e8bf08af856e33c2eb4bc37abdf38cdca8ebc9e0fd4e93a8fb06·...·]-25">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 324 | ····</span><span·class="ss">void</span><span·class="p">.</span><span·class="w"> | 324 | ····</span><span·class="ss">void</span><span·class="p">.</span><span·class="w"> |
| 325 | </span><span·class="nf">code_change</span><span·class="p"·data-group-id=" | 325 | </span><span·class="nf">code_change</span><span·class="p"·data-group-id="7084333821-26">(</span><span·class="p">_</span><span·class="n">Vsn</span><span·class="p">,</span><span·class="w">·</span><span·class="n">State</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Data</span><span·class="p">,</span><span·cl[·...·truncated·by·diffoscope;·len:·109,·SHA:·88e2076d82912bc22ec8928e4fd7eef6c9f45df704a42ce24ba80464c6cdbed8·...·]-26">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 326 | ····</span><span·class="p"·data-group-id=" | 326 | ····</span><span·class="p"·data-group-id="7084333821-27">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="n">State</span><span·class="p">,</span><span·class="n">Data</span><span·class="p"·data-group-id="7084333821-27">}</span><span·class="p">.</span><span·class="w"> |
| 327 | </span><span·class="nf">init</span><span·class="p"·data-group-id=" | 327 | </span><span·class="nf">init</span><span·class="p"·data-group-id="7084333821-28">(</span><span·class="p"·data-group-id="7084333821-29">[</span><span·class="p"·data-group-id="7084333821-29">]</span><span·class="p"·data-group-id="7084333821-28">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 328 | ····</span><span·class="c1">%%·Set·the·initial·state·+·data.··Data·is·used·only·as·a·counter.</span><span·class="w"> | 328 | ····</span><span·class="c1">%%·Set·the·initial·state·+·data.··Data·is·used·only·as·a·counter.</span><span·class="w"> |
| 329 | ····</span><span·class="n">State</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">off</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Data</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">0</span><span·class="p">,</span><span·class="w"> | 329 | ····</span><span·class="n">State</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">off</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Data</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">0</span><span·class="p">,</span><span·class="w"> |
| 330 | ····</span><span·class="p"·data-group-id=" | 330 | ····</span><span·class="p"·data-group-id="7084333821-30">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="n">State</span><span·class="p">,</span><span·class="n">Data</span><span·class="p"·data-group-id="7084333821-30">}</span><span·class="p">.</span><span·class="w"> |
| 331 | </span><span·class="nf">callback_mode</span><span·class="p"·data-group-id=" | 331 | </span><span·class="nf">callback_mode</span><span·class="p"·data-group-id="7084333821-31">(</span><span·class="p"·data-group-id="7084333821-31">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">state_functions</span><span·class="p">.</span><span·class="w"> |
| 332 | </span><span·class="c1">%%%·state·callback(s)</span><span·class="w"> | 332 | </span><span·class="c1">%%%·state·callback(s)</span><span·class="w"> |
| 333 | </span><span·class="nf">off</span><span·class="p"·data-group-id=" | 333 | </span><span·class="nf">off</span><span·class="p"·data-group-id="7084333821-32">(</span><span·class="p"·data-group-id="7084333821-33">{</span><span·class="ss">call</span><span·class="p">,</span><span·class="n">From</span><span·class="p"·data-group-id="7084333821-33">}</span><span·class="p">,</span><span·class="w">·</spa[·...·truncated·by·diffoscope;·len:·146,·SHA:·e1746746d3762de646c8f6e58fa039d7fbca6ba3cf875f2c40da0e2cc5ebb04a·...·]-32">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 334 | ····</span><span·class="c1">%%·Go·to·'on',·increment·count·and·reply</span><span·class="w"> | 334 | ····</span><span·class="c1">%%·Go·to·'on',·increment·count·and·reply</span><span·class="w"> |
| 335 | ····</span><span·class="c1">%%·that·the·resulting·status·is·'on'</span><span·class="w"> | 335 | ····</span><span·class="c1">%%·that·the·resulting·status·is·'on'</span><span·class="w"> |
| 336 | ····</span><span·class="p"·data-group-id=" | 336 | ····</span><span·class="p"·data-group-id="7084333821-34">{</span><span·class="ss">next_state</span><span·class="p">,</span><span·class="ss">on</span><span·class="p">,</span><span·class="n">Data</span><span·class="o">+</span><span·class="mi">1</span><span·class="p">,</span><span·class="p"·data-grou[·...·truncated·by·diffoscope;·len:·362,·SHA:·36c6c11dc42e987fdfb6eb8b5b6c9c488a989d53237943f5f9e55c3ed9ac754f·...·]-34">}</span><span·class="p">;</span><span·class="w"> |
| 337 | </span><span·class="nf">off</span><span·class="p"·data-group-id=" | 337 | </span><span·class="nf">off</span><span·class="p"·data-group-id="7084333821-37">(</span><span·class="n">EventType</span><span·class="p">,</span><span·class="w">·</span><span·class="n">EventContent</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Data</span><span·class="p"·data-group-id="7084333821-37">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 338 | ····</span><span·class="nf">handle_event</span><span·class="p"·data-group-id=" | 338 | ····</span><span·class="nf">handle_event</span><span·class="p"·data-group-id="7084333821-38">(</span><span·class="n">EventType</span><span·class="p">,</span><span·class="w">·</span><span·class="n">EventContent</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Data</span><span·class="p"·data-group-id="7084333821-38">)</span><span·class="p">.</span><span·class="w"> |
| 339 | </span><span·class="nf">on</span><span·class="p"·data-group-id=" | 339 | </span><span·class="nf">on</span><span·class="p"·data-group-id="7084333821-39">(</span><span·class="p"·data-group-id="7084333821-40">{</span><span·class="ss">call</span><span·class="p">,</span><span·class="n">From</span><span·class="p"·data-group-id="7084333821-40">}</span><span·class="p">,</span><span·class="w">·</spa[·...·truncated·by·diffoscope;·len:·146,·SHA:·e1746746d3762de646c8f6e58fa039d7fbca6ba3cf875f2c40da0e2cc5ebb04a·...·]-39">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 340 | ····</span><span·class="c1">%%·Go·to·'off'·and·reply·that·the·resulting·status·is·'off'</span><span·class="w"> | 340 | ····</span><span·class="c1">%%·Go·to·'off'·and·reply·that·the·resulting·status·is·'off'</span><span·class="w"> |
| 341 | ····</span><span·class="p"·data-group-id=" | 341 | ····</span><span·class="p"·data-group-id="7084333821-41">{</span><span·class="ss">next_state</span><span·class="p">,</span><span·class="ss">off</span><span·class="p">,</span><span·class="n">Data</span><span·class="p">,</span><span·class="p"·data-group-id="7084333821-42">[</span><span·class="p"·dat[·...·truncated·by·diffoscope;·len:·315,·SHA:·8bc31a8b7f143c50dec5e8d5aea265417954ef7efc637d96d6ca6e8c6ebd0ce1·...·]-41">}</span><span·class="p">;</span><span·class="w"> |
| 342 | </span><span·class="nf">on</span><span·class="p"·data-group-id=" | 342 | </span><span·class="nf">on</span><span·class="p"·data-group-id="7084333821-44">(</span><span·class="n">EventType</span><span·class="p">,</span><span·class="w">·</span><span·class="n">EventContent</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Data</span><span·class="p"·data-group-id="7084333821-44">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 343 | ····</span><span·class="nf">handle_event</span><span·class="p"·data-group-id=" | 343 | ····</span><span·class="nf">handle_event</span><span·class="p"·data-group-id="7084333821-45">(</span><span·class="n">EventType</span><span·class="p">,</span><span·class="w">·</span><span·class="n">EventContent</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Data</span><span·class="p"·data-group-id="7084333821-45">)</span><span·class="p">.</span><span·class="w"> |
| 344 | </span><span·class="c1">%%·Handle·events·common·to·all·states</span><span·class="w"> | 344 | </span><span·class="c1">%%·Handle·events·common·to·all·states</span><span·class="w"> |
| 345 | </span><span·class="nf">handle_event</span><span·class="p"·data-group-id=" | 345 | </span><span·class="nf">handle_event</span><span·class="p"·data-group-id="7084333821-46">(</span><span·class="p"·data-group-id="7084333821-47">{</span><span·class="ss">call</span><span·class="p">,</span><span·class="n">From</span><span·class="p"·data-group-id="7084333821-47">}</span><span·class="p">,</span><span·class="w">·</spa[·...·truncated·by·diffoscope;·len:·151,·SHA:·920dc331f1fa830baa5ead00cfd8dd7c16872dd3c6c6928044af6c4151acbdb5·...·]-46">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 346 | ····</span><span·class="c1">%%·Reply·with·the·current·count</span><span·class="w"> | 346 | ····</span><span·class="c1">%%·Reply·with·the·current·count</span><span·class="w"> |
| 347 | ····</span><span·class="p"·data-group-id=" | 347 | ····</span><span·class="p"·data-group-id="7084333821-48">{</span><span·class="ss">keep_state</span><span·class="p">,</span><span·class="n">Data</span><span·class="p">,</span><span·class="p"·data-group-id="7084333821-49">[</span><span·class="p"·data-group-id="7084333821-50">{</span><span·class="ss"[·...·truncated·by·diffoscope;·len:·264,·SHA:·ba96ee62ec033b6dd8be0ede60262cf3d8da671eb307db8593321e280044f4c9·...·]-48">}</span><span·class="p">;</span><span·class="w"> |
| 348 | </span><span·class="nf">handle_event</span><span·class="p"·data-group-id=" | 348 | </span><span·class="nf">handle_event</span><span·class="p"·data-group-id="7084333821-51">(</span><span·class="p">_</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Data</span><span·class="p"·data-group-id="7084333821-51">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 349 | ····</span><span·class="c1">%%·Ignore·all·other·events</span><span·class="w"> | 349 | ····</span><span·class="c1">%%·Ignore·all·other·events</span><span·class="w"> |
| 350 | ····</span><span·class="p"·data-group-id=" | 350 | ····</span><span·class="p"·data-group-id="7084333821-52">{</span><span·class="ss">keep_state</span><span·class="p">,</span><span·class="n">Data</span><span·class="p"·data-group-id="7084333821-52">}</span><span·class="p">.</span></code></pre><p>The·following·is·a·shell·session·when·running·it:</p><[·...·truncated·by·diffoscope;·len:·271,·SHA:·0ccfb38bdb568a108e3d1a25cf6332cbeac11e33dca406c81763a1aa020c7ce3·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 351 | </span><span·class="p"·data-group-id=" | 351 | </span><span·class="p"·data-group-id="6585802150-2">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="o"><</span><span·class="mf">0.36</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="p"·data-group-id="6585802150-2">}</span><span·class="gp·unselectable"> |
| 352 | 2>·</span><span·class="nc">pushbutton</span><span·class="p">:</span><span·class="nf">get_count</span><span·class="p"·data-group-id=" | 352 | 2>·</span><span·class="nc">pushbutton</span><span·class="p">:</span><span·class="nf">get_count</span><span·class="p"·data-group-id="6585802150-3">(</span><span·class="p"·data-group-id="6585802150-3">)</span><span·class="p">.</span><span·class="w"> |
| 353 | </span><span·class="mi">0</span><span·class="gp·unselectable"> | 353 | </span><span·class="mi">0</span><span·class="gp·unselectable"> |
| 354 | 3>·</span><span·class="nc">pushbutton</span><span·class="p">:</span><span·class="nf">push</span><span·class="p"·data-group-id=" | 354 | 3>·</span><span·class="nc">pushbutton</span><span·class="p">:</span><span·class="nf">push</span><span·class="p"·data-group-id="6585802150-4">(</span><span·class="p"·data-group-id="6585802150-4">)</span><span·class="p">.</span><span·class="w"> |
| 355 | </span><span·class="ss">on</span><span·class="gp·unselectable"> | 355 | </span><span·class="ss">on</span><span·class="gp·unselectable"> |
| 356 | 4>·</span><span·class="nc">pushbutton</span><span·class="p">:</span><span·class="nf">get_count</span><span·class="p"·data-group-id=" | 356 | 4>·</span><span·class="nc">pushbutton</span><span·class="p">:</span><span·class="nf">get_count</span><span·class="p"·data-group-id="6585802150-5">(</span><span·class="p"·data-group-id="6585802150-5">)</span><span·class="p">.</span><span·class="w"> |
| 357 | </span><span·class="mi">1</span><span·class="gp·unselectable"> | 357 | </span><span·class="mi">1</span><span·class="gp·unselectable"> |
| 358 | 5>·</span><span·class="nc">pushbutton</span><span·class="p">:</span><span·class="nf">push</span><span·class="p"·data-group-id=" | 358 | 5>·</span><span·class="nc">pushbutton</span><span·class="p">:</span><span·class="nf">push</span><span·class="p"·data-group-id="6585802150-6">(</span><span·class="p"·data-group-id="6585802150-6">)</span><span·class="p">.</span><span·class="w"> |
| 359 | </span><span·class="ss">off</span><span·class="gp·unselectable"> | 359 | </span><span·class="ss">off</span><span·class="gp·unselectable"> |
| 360 | 6>·</span><span·class="nc">pushbutton</span><span·class="p">:</span><span·class="nf">get_count</span><span·class="p"·data-group-id=" | 360 | 6>·</span><span·class="nc">pushbutton</span><span·class="p">:</span><span·class="nf">get_count</span><span·class="p"·data-group-id="6585802150-7">(</span><span·class="p"·data-group-id="6585802150-7">)</span><span·class="p">.</span><span·class="w"> |
| 361 | </span><span·class="mi">1</span><span·class="gp·unselectable"> | 361 | </span><span·class="mi">1</span><span·class="gp·unselectable"> |
| 362 | 7>·</span><span·class="nc">pushbutton</span><span·class="p">:</span><span·class="nf">stop</span><span·class="p"·data-group-id=" | 362 | 7>·</span><span·class="nc">pushbutton</span><span·class="p">:</span><span·class="nf">stop</span><span·class="p"·data-group-id="6585802150-8">(</span><span·class="p"·data-group-id="6585802150-8">)</span><span·class="p">.</span><span·class="w"> |
| 363 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> | 363 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> |
| 364 | 8>·</span><span·class="nc">pushbutton</span><span·class="p">:</span><span·class="nf">push</span><span·class="p"·data-group-id=" | 364 | 8>·</span><span·class="nc">pushbutton</span><span·class="p">:</span><span·class="nf">push</span><span·class="p"·data-group-id="6585802150-9">(</span><span·class="p"·data-group-id="6585802150-9">)</span><span·class="p">.</span><span·class="w"> |
| 365 | </span><span·class="gt">**·exception·exit:·{noproc,{gen_statem,call,[pushbutton_statem,push,infinity]}} | 365 | </span><span·class="gt">**·exception·exit:·{noproc,{gen_statem,call,[pushbutton_statem,push,infinity]}} |
| 366 | ·····in·function··gen:do_for_proc/2·(gen.erl,·line·261) | 366 | ·····in·function··gen:do_for_proc/2·(gen.erl,·line·261) |
| 367 | ·····in·call·from·gen_statem:call/3·(gen_statem.erl,·line·386)</span></code></pre><p>To·compare·styles,·here·follows·the·same·example·using | 367 | ·····in·call·from·gen_statem:call/3·(gen_statem.erl,·line·386)</span></code></pre><p>To·compare·styles,·here·follows·the·same·example·using |
| 368 | <a·href="#t:callback_mode/0"><em>callback·mode</em></a>·<code·class="inline">handle_event_function</code>, | 368 | <a·href="#t:callback_mode/0"><em>callback·mode</em></a>·<code·class="inline">handle_event_function</code>, |
| 369 | or·rather,·the·code·to·replace·after·function·<a·href="#c:init/1"><code·class="inline">init/1</code></a> | 369 | or·rather,·the·code·to·replace·after·function·<a·href="#c:init/1"><code·class="inline">init/1</code></a> |
| 370 | of·the·<code·class="inline">pushbutton.erl</code>·example·file·above:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">callback_mode</span><span·class="p"·data-group-id=" | 370 | of·the·<code·class="inline">pushbutton.erl</code>·example·file·above:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">callback_mode</span><span·class="p"·data-group-id="4952385976-1">(</span><span·class="p"·data-group-id="4952385976-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">handle_event_function</span><span·class="p">.</span><span·class="w"> |
| 371 | </span><span·class="c1">%%%·state·callback(s)</span><span·class="w"> | 371 | </span><span·class="c1">%%%·state·callback(s)</span><span·class="w"> |
| 372 | </span><span·class="nf">handle_event</span><span·class="p"·data-group-id=" | 372 | </span><span·class="nf">handle_event</span><span·class="p"·data-group-id="4952385976-2">(</span><span·class="p"·data-group-id="4952385976-3">{</span><span·class="ss">call</span><span·class="p">,</span><span·class="n">From</span><span·class="p"·data-group-id="4952385976-3">}</span><span·class="p">,</span><span·class="w">·</span><[·...·truncated·by·diffoscope;·len:·218,·SHA:·39b84f8c201844cb5ca89ad154808d560232d95e21c0ebacb84640f0ed22b1fa·...·]-2">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 373 | ····</span><span·class="c1">%%·Go·to·'on',·increment·count·and·reply</span><span·class="w"> | 373 | ····</span><span·class="c1">%%·Go·to·'on',·increment·count·and·reply</span><span·class="w"> |
| 374 | ····</span><span·class="c1">%%·that·the·resulting·status·is·'on'</span><span·class="w"> | 374 | ····</span><span·class="c1">%%·that·the·resulting·status·is·'on'</span><span·class="w"> |
| 375 | ····</span><span·class="p"·data-group-id=" | 375 | ····</span><span·class="p"·data-group-id="4952385976-4">{</span><span·class="ss">next_state</span><span·class="p">,</span><span·class="ss">on</span><span·class="p">,</span><span·class="n">Data</span><span·class="o">+</span><span·class="mi">1</span><span·class="p">,</span><span·class="p"·data-group[·...·truncated·by·diffoscope;·len:·357,·SHA:·d92113867457a4d4e05e44c2e490bcf4b9cf77673f1d392e018ac429982decf3·...·]-4">}</span><span·class="p">;</span><span·class="w"> |
| 376 | </span><span·class="nf">handle_event</span><span·class="p"·data-group-id=" | 376 | </span><span·class="nf">handle_event</span><span·class="p"·data-group-id="4952385976-7">(</span><span·class="p"·data-group-id="4952385976-8">{</span><span·class="ss">call</span><span·class="p">,</span><span·class="n">From</span><span·class="p"·data-group-id="4952385976-8">}</span><span·class="p">,</span><span·class="w">·</span><[·...·truncated·by·diffoscope;·len:·217,·SHA:·cd76d46a04cde8e604ac9db95c4a13912c169bdbf738fbe722938c73b5ec4ed5·...·]-7">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 377 | ····</span><span·class="c1">%%·Go·to·'off'·and·reply·that·the·resulting·status·is·'off'</span><span·class="w"> | 377 | ····</span><span·class="c1">%%·Go·to·'off'·and·reply·that·the·resulting·status·is·'off'</span><span·class="w"> |
| 378 | ····</span><span·class="p"·data-group-id=" | 378 | ····</span><span·class="p"·data-group-id="4952385976-9">{</span><span·class="ss">next_state</span><span·class="p">,</span><span·class="ss">off</span><span·class="p">,</span><span·class="n">Data</span><span·class="p">,</span><span·class="p"·data-group-id="4952385976-10">[</span><span·class="p"·data[·...·truncated·by·diffoscope;·len:·314,·SHA:·e8957076bb130bc4a56b045dbec575e3d3303fc91b4b0211770b815d11e98b7d·...·]-9">}</span><span·class="p">;</span><span·class="w"> |
| 379 | </span><span·class="c1">%%</span><span·class="w"> | 379 | </span><span·class="c1">%%</span><span·class="w"> |
| 380 | </span><span·class="c1">%%·Event·handling·common·to·all·states</span><span·class="w"> | 380 | </span><span·class="c1">%%·Event·handling·common·to·all·states</span><span·class="w"> |
| 381 | </span><span·class="nf">handle_event</span><span·class="p"·data-group-id=" | 381 | </span><span·class="nf">handle_event</span><span·class="p"·data-group-id="4952385976-12">(</span><span·class="p"·data-group-id="4952385976-13">{</span><span·class="ss">call</span><span·class="p">,</span><span·class="n">From</span><span·class="p"·data-group-id="4952385976-13">}</span><span·class="p">,</span><span·class="w">·</spa[·...·truncated·by·diffoscope;·len:·227,·SHA:·f99466076d1097d42910fcdef49c67a963ce1207aa736d9038d272d1e5495831·...·]-12">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 382 | ····</span><span·class="c1">%%·Reply·with·the·current·count</span><span·class="w"> | 382 | ····</span><span·class="c1">%%·Reply·with·the·current·count</span><span·class="w"> |
| 383 | ····</span><span·class="p"·data-group-id=" | 383 | ····</span><span·class="p"·data-group-id="4952385976-14">{</span><span·class="ss">next_state</span><span·class="p">,</span><span·class="n">State</span><span·class="p">,</span><span·class="n">Data</span><span·class="p">,</span><span·class="p"·data-group-id="4952385976-15">[</span><span·class="p"·da[·...·truncated·by·diffoscope;·len:·316,·SHA:·65fcc82bea20f0b3978dd5d29a8ea4a748dd38360edbddef342d7c870600e989·...·]-14">}</span><span·class="p">;</span><span·class="w"> |
| 384 | </span><span·class="nf">handle_event</span><span·class="p"·data-group-id=" | 384 | </span><span·class="nf">handle_event</span><span·class="p"·data-group-id="4952385976-17">(</span><span·class="p">_</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="p">,</span><span·class="w">·</span><span·class="n">State</span><span·class="p">,</span><span·class="w">·</span><span·class="[·...·truncated·by·diffoscope;·len:·55,·SHA:·a610b8c68ddebb3c4e45b64dccdd6ae5ef1edca094b587c785cd2755ba87f2ec·...·]-17">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 385 | ····</span><span·class="c1">%%·Ignore·all·other·events</span><span·class="w"> | 385 | ····</span><span·class="c1">%%·Ignore·all·other·events</span><span·class="w"> |
| 386 | ····</span><span·class="p"·data-group-id=" | 386 | ····</span><span·class="p"·data-group-id="4952385976-18">{</span><span·class="ss">next_state</span><span·class="p">,</span><span·class="n">State</span><span·class="p">,</span><span·class="n">Data</span><span·class="p"·data-group-id="4952385976-18">}</span><span·class="p">.</span></code></pre><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><h2·id="module-api-changes"·class="section-heading"> |
| 387 | ··<a·href="#module-api-changes"·class="hover-link"> | 387 | ··<a·href="#module-api-changes"·class="hover-link"> |
| 388 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 388 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 389 | ··</a> | 389 | ··</a> |
| 390 | ··<span·class="text">API·changes</span> | 390 | ··<span·class="text">API·changes</span> |
| 391 | </h2> | 391 | </h2> |
| 392 | <ul><li>This·behavior·appeared·in·Erlang/OTP·19.0·as·experimental.</li><li>In·OTP·19.1·a·backwards·incompatible·change·of·the·return·tuple·from | 392 | <ul><li>This·behavior·appeared·in·Erlang/OTP·19.0·as·experimental.</li><li>In·OTP·19.1·a·backwards·incompatible·change·of·the·return·tuple·from |
| 393 | <a·href="#c:init/1"><code·class="inline">Module:init/1</code></a>·was·made, | 393 | <a·href="#c:init/1"><code·class="inline">Module:init/1</code></a>·was·made, |
| Offset 3083, 23 lines modified | Offset 3083, 23 lines modified | ||
| 3083 | return·value·and·how·its·status·appears·in·termination·error·logs, | 3083 | return·value·and·how·its·status·appears·in·termination·error·logs, |
| 3084 | exports·an·instance·of·<a·href="#c:format_status/1"><code·class="inline">Module:format_status/1</code></a>, | 3084 | exports·an·instance·of·<a·href="#c:format_status/1"><code·class="inline">Module:format_status/1</code></a>, |
| 3085 | which·will·get·a·map·<code·class="inline">Status</code>·that·describes·the·current·state | 3085 | which·will·get·a·map·<code·class="inline">Status</code>·that·describes·the·current·state |
| 3086 | of·the·<code·class="inline">gen_statem</code>,·and·shall·return·a·map·<code·class="inline">NewStatus</code> | 3086 | of·the·<code·class="inline">gen_statem</code>,·and·shall·return·a·map·<code·class="inline">NewStatus</code> |
| 3087 | containing·the·same·keys·as·the·input·map, | 3087 | containing·the·same·keys·as·the·input·map, |
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| 185 | ······<p·class="built-using"> | 185 | ······<p·class="built-using"> |
| 186 | ········Built·using | 186 | ········Built·using |
| 187 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 187 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 188 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 188 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 189 | ······</p> | 189 | ······</p> |
| 190 | <p>Copyright·©·1996-202 | 190 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 191 | ····</footer> | 191 | ····</footer> |
| 192 | ··</div> | 192 | ··</div> |
| 193 | </main> | 193 | </main> |
| 194 | </div> | 194 | </div> |
| 195 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 195 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 196 | ··<script> | 196 | ··<script> |
| 197 | ··let·initialized·=·false; | 197 | ··let·initialized·=·false; |
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| 1252 | <p>Tries·to·read·<code·class="inline">String</code>·in·accordance·with·the·control·sequences·in·<code·class="inline">Format</code>.</p><p>For·a·detailed·description·of·the·available·formatting·options,·see·<a·href="io.html#fread/3"><code·class="inline">io:fread/3</code></a>. | 1252 | <p>Tries·to·read·<code·class="inline">String</code>·in·accordance·with·the·control·sequences·in·<code·class="inline">Format</code>.</p><p>For·a·detailed·description·of·the·available·formatting·options,·see·<a·href="io.html#fread/3"><code·class="inline">io:fread/3</code></a>. |
| 1253 | It·is·assumed·that·<code·class="inline">String</code>·contains·whole·lines.</p><p>The·function·returns:</p><ul><li><p><strong><code·class="inline">{ok,·InputList,·LeftOverChars}</code></strong>·-·The·string·was·read.·<code·class="inline">InputList</code>·is·the | 1253 | It·is·assumed·that·<code·class="inline">String</code>·contains·whole·lines.</p><p>The·function·returns:</p><ul><li><p><strong><code·class="inline">{ok,·InputList,·LeftOverChars}</code></strong>·-·The·string·was·read.·<code·class="inline">InputList</code>·is·the |
| 1254 | list·of·successfully·matched·and·read·items,·and·<code·class="inline">LeftOverChars</code>·are·the·input | 1254 | list·of·successfully·matched·and·read·items,·and·<code·class="inline">LeftOverChars</code>·are·the·input |
| 1255 | characters·not·used.</p></li><li><p><strong><code·class="inline">{more,·RestFormat,·Nchars,·InputStack}</code></strong>·-·The·string·was·read,·but·more | 1255 | characters·not·used.</p></li><li><p><strong><code·class="inline">{more,·RestFormat,·Nchars,·InputStack}</code></strong>·-·The·string·was·read,·but·more |
| 1256 | input·is·needed·to·complete·the·original·format·string.·<code·class="inline">RestFormat</code>·is·the | 1256 | input·is·needed·to·complete·the·original·format·string.·<code·class="inline">RestFormat</code>·is·the |
| 1257 | remaining·format·string,·<code·class="inline">Nchars</code>·is·the·number·of·characters·scanned,·and | 1257 | remaining·format·string,·<code·class="inline">Nchars</code>·is·the·number·of·characters·scanned,·and |
| 1258 | <code·class="inline">InputStack</code>·is·the·reversed·list·of·inputs·matched·up·to·that·point.</p></li><li><p><strong><code·class="inline">{error,·What}</code></strong>·-·The·read·operation·failed·and·parameter·<code·class="inline">What</code>·gives·a | 1258 | <code·class="inline">InputStack</code>·is·the·reversed·list·of·inputs·matched·up·to·that·point.</p></li><li><p><strong><code·class="inline">{error,·What}</code></strong>·-·The·read·operation·failed·and·parameter·<code·class="inline">What</code>·gives·a |
| 1259 | hint·about·the·error.</p></li></ul><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">3>·</span><span·class="nc">io_lib</span><span·class="p">:</span><span·class="nf">fread</span><span·class="p"·data-group-id="4 | 1259 | hint·about·the·error.</p></li></ul><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">3>·</span><span·class="nc">io_lib</span><span·class="p">:</span><span·class="nf">fread</span><span·class="p"·data-group-id="4248471368-1">(</span><span·class="s">"~f~f~f"</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"15.6·17.3e-6·24.5"</span><span·class="p"·data-group-id="4248471368-1">)</span><span·class="p">.</span><span·class="w"> |
| 1260 | </span><span·class="p"·data-group-id="4 | 1260 | </span><span·class="p"·data-group-id="4248471368-2">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="p"·data-group-id="4248471368-3">[</span><span·class="mf">15.6</span><span·class="p">,</span><span·class="mf">1.73e-5</span><span·class="p">,</span><span·class="mf">24.5</sp[·...·truncated·by·diffoscope;·len:·227,·SHA:·6be528560b5c2fc4bb372b191c95fd1c29920d1bfa102a0a110ce2a6fcb394e5·...·]-2">}</span></code></pre> |
| 1261 | ··</section> | 1261 | ··</section> |
| 1262 | </section> | 1262 | </section> |
| 1263 | <section·class="detail"·id="fread/3"> | 1263 | <section·class="detail"·id="fread/3"> |
| 1264 | ··<div·class="detail-header"> | 1264 | ··<div·class="detail-header"> |
| 1265 | ····<a·href="#fread/3"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 1265 | ····<a·href="#fread/3"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 1266 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 1266 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 1731, 19 lines modified | Offset 1731, 19 lines modified | ||
| 1731 | ······</div> | 1731 | ······</div> |
| 1732 | <p>Returns·a·character·list·that·represents·<code·class="inline">Term</code>.·Option·<code·class="inline">Depth</code>·controls·the | 1732 | <p>Returns·a·character·list·that·represents·<code·class="inline">Term</code>.·Option·<code·class="inline">Depth</code>·controls·the |
| 1733 | depth·of·the·structures·written.</p><p>When·the·specified·depth·is·reached,·everything·below·this·level·is·replaced·by | 1733 | depth·of·the·structures·written.</p><p>When·the·specified·depth·is·reached,·everything·below·this·level·is·replaced·by |
| 1734 | "<code·class="inline">...</code>".</p><p><code·class="inline">Depth</code>·defaults·to·-1,·which·means·no·limitation.·Option·<code·class="inline">CharsLimit</code>·puts·a | 1734 | "<code·class="inline">...</code>".</p><p><code·class="inline">Depth</code>·defaults·to·-1,·which·means·no·limitation.·Option·<code·class="inline">CharsLimit</code>·puts·a |
| 1735 | soft·limit·on·the·number·of·characters·returned.·When·the·number·of·characters·is | 1735 | soft·limit·on·the·number·of·characters·returned.·When·the·number·of·characters·is |
| 1736 | reached,·remaining·structures·are·replaced·by·"<code·class="inline">...</code>".·<code·class="inline">CharsLimit</code>·defaults·to·-1, | 1736 | reached,·remaining·structures·are·replaced·by·"<code·class="inline">...</code>".·<code·class="inline">CharsLimit</code>·defaults·to·-1, |
| 1737 | which·means·no·limit·on·the·number·of·characters·returned.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">flatten</span><span·class="p"·data-group-id=" | 1737 | which·means·no·limit·on·the·number·of·characters·returned.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">flatten</span><span·class="p"·data-group-id="3031368791-1">(</span><span·class="nc">io_lib</span><span·class="p">:</span><span·class="nf">write</span><span·class="p"·data-group-id="3031368791-2">(</span><span·class="p"·data-group-id="3031368791-3">{</span><span·class="mi">1</span><span·class="p">,</s[·...·truncated·by·diffoscope;·len:·836,·SHA:·854568a027f6641d2e314fd506f17bf2cc1b751049e2751ee3dd64d426f71105·...·]1-1">)</span><span·class="p">.</span><span·class="w"> |
| 1738 | </span><span·class="s">"{1,[2],[3],[4,5],6,7,8,9}"</span><span·class="gp·unselectable"> | 1738 | </span><span·class="s">"{1,[2],[3],[4,5],6,7,8,9}"</span><span·class="gp·unselectable"> |
| 1739 | 2>·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">flatten</span><span·class="p"·data-group-id=" | 1739 | 2>·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">flatten</span><span·class="p"·data-group-id="3031368791-7">(</span><span·class="nc">io_lib</span><span·class="p">:</span><span·class="nf">write</span><span·class="p"·data-group-id="3031368791-8">(</span><span·class="p"·data-group-id="3031368791-9">{</span><span·class="mi">1</span><span·class="p">,</s[·...·truncated·by·diffoscope;·len:·915,·SHA:·94cd4f0fe4e48cf82023667f885f1dc5204fc799af3ed52bd512fd070576f361·...·]1-7">)</span><span·class="p">.</span><span·class="w"> |
| 1740 | </span><span·class="s">"{1,[2],[3],[...],...}"</span><span·class="gp·unselectable"> | 1740 | </span><span·class="s">"{1,[2],[3],[...],...}"</span><span·class="gp·unselectable"> |
| 1741 | 3>·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">flatten</span><span·class="p"·data-group-id=" | 1741 | 3>·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">flatten</span><span·class="p"·data-group-id="3031368791-13">(</span><span·class="nc">io_lib</span><span·class="p">:</span><span·class="nf">write</span><span·class="p"·data-group-id="3031368791-14">(</span><span·class="p"·data-group-id="3031368791-15">{</span><span·class="p"·data-group-id="3031368791-[·...·truncated·by·diffoscope;·len:·1088,·SHA:·725e94b4a99e951781493fb5e51e834e61c4b7c855260d2fe9924cafce80b644·...·]1-13">)</span><span·class="p">.</span><span·class="w"> |
| 1742 | </span><span·class="s">"{[1,2|...],[4|...],...}"</span></code></pre> | 1742 | </span><span·class="s">"{[1,2|...],[4|...],...}"</span></code></pre> |
| 1743 | ··</section> | 1743 | ··</section> |
| 1744 | </section> | 1744 | </section> |
| 1745 | <section·class="detail"·id="write_atom/1"> | 1745 | <section·class="detail"·id="write_atom/1"> |
| 1746 | ··<div·class="detail-header"> | 1746 | ··<div·class="detail-header"> |
| 1747 | ····<a·href="#write_atom/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 1747 | ····<a·href="#write_atom/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| Offset 1988, 15 lines modified | Offset 1988, 15 lines modified | ||
| 1988 | ······<p·class="built-using"> | 1988 | ······<p·class="built-using"> |
| 1989 | ········Built·using | 1989 | ········Built·using |
| 1990 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1990 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1991 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1991 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1992 | ······</p> | 1992 | ······</p> |
| 1993 | <p>Copyright·©·1996-202 | 1993 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1994 | ····</footer> | 1994 | ····</footer> |
| 1995 | ··</div> | 1995 | ··</div> |
| 1996 | </main> | 1996 | </main> |
| 1997 | </div> | 1997 | </div> |
| 1998 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1998 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1999 | ··<script> | 1999 | ··<script> |
| 2000 | ··let·initialized·=·false; | 2000 | ··let·initialized·=·false; |
| Offset 977, 16 lines modified | Offset 977, 16 lines modified | ||
| 977 | </h2> | 977 | </h2> |
| 978 | <ul><li><code·class="inline">error(unexpected_end)</code>·if·<code·class="inline">Binary</code>·contains·incomplete·JSON·value</li><li><code·class="inline">error({invalid_byte,·Byte})</code>·if·<code·class="inline">Binary</code>·contains·unexpected·byte·or·invalid·UTF-8·byte</li><li><code·class="inline">error({unexpected_sequence,·Bytes})</code>·if·<code·class="inline">Binary</code>·contains·invalid·UTF-8·escape</li></ul><h2·id="decode/1-example"·class="section-heading"> | 978 | <ul><li><code·class="inline">error(unexpected_end)</code>·if·<code·class="inline">Binary</code>·contains·incomplete·JSON·value</li><li><code·class="inline">error({invalid_byte,·Byte})</code>·if·<code·class="inline">Binary</code>·contains·unexpected·byte·or·invalid·UTF-8·byte</li><li><code·class="inline">error({unexpected_sequence,·Bytes})</code>·if·<code·class="inline">Binary</code>·contains·invalid·UTF-8·escape</li></ul><h2·id="decode/1-example"·class="section-heading"> |
| 979 | ··<a·href="#decode/1-example"·class="hover-link"> | 979 | ··<a·href="#decode/1-example"·class="hover-link"> |
| 980 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 980 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 981 | ··</a> | 981 | ··</a> |
| 982 | ··<span·class="text">Example</span> | 982 | ··<span·class="text">Example</span> |
| 983 | </h2> | 983 | </h2> |
| 984 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="nc">json</span><span·class="p">:</span><span·class="nf">decode</span><span·class="p"·data-group-id="9386436424-1">(</span><span·class="p"·data-group-id="9386436424-2"><<</span><span·class="s">"{\"foo\":·1}"</span><span·class="p"·data-group-id="9386436424-2">>></span><span·class="p"·data-group-id="9386436424-1">)</span><span·class="p">.</span><span·class="w"> | ||
| 985 | < | 984 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="nc">json</span><span·class="p">:</span><span·class="nf">decode</span><span·class="p"·data-group-id="8752322764-1">(</span><span·class="p"·data-group-id="8[·...·truncated·by·diffoscope;·len:·237,·SHA:·f993953d109f552eef4ac702b5eb36d717ca274f565da9917096a3349492afbf·...·]> |
| 985 | </span><span·class="p"·data-group-id="8752322764-3">#{</span><span·class="p"·data-group-id="8752322764-4"><<</span><span·class="s">"foo"</span><span·class="p"·data-group-id="8752322764-4">>></span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="mi">1</span><span·class="p"·data-group-id="8752322764-3">}</span></code></pre> | ||
| 986 | ··</section> | 986 | ··</section> |
| 987 | </section> | 987 | </section> |
| 988 | <section·class="detail"·id="decode/3"> | 988 | <section·class="detail"·id="decode/3"> |
| 989 | ··<div·class="detail-header"> | 989 | ··<div·class="detail-header"> |
| 990 | ····<a·href="#decode/3"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 990 | ····<a·href="#decode/3"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 991 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 991 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 1028, 17 lines modified | Offset 1028, 17 lines modified | ||
| 1028 | </h2> | 1028 | </h2> |
| 1029 | <ul><li><code·class="inline">error({invalid_byte,·Byte})</code>·if·<code·class="inline">Binary</code>·contains·unexpected·byte·or·invalid·UTF-8·byte</li><li><code·class="inline">error({unexpected_sequence,·Bytes})</code>·if·<code·class="inline">Binary</code>·contains·invalid·UTF-8·escape</li><li><code·class="inline">error(unexpected_end)</code>·if·<code·class="inline">Binary</code>·contains·incomplete·JSON·value</li></ul><h2·id="decode/3-example"·class="section-heading"> | 1029 | <ul><li><code·class="inline">error({invalid_byte,·Byte})</code>·if·<code·class="inline">Binary</code>·contains·unexpected·byte·or·invalid·UTF-8·byte</li><li><code·class="inline">error({unexpected_sequence,·Bytes})</code>·if·<code·class="inline">Binary</code>·contains·invalid·UTF-8·escape</li><li><code·class="inline">error(unexpected_end)</code>·if·<code·class="inline">Binary</code>·contains·incomplete·JSON·value</li></ul><h2·id="decode/3-example"·class="section-heading"> |
| 1030 | ··<a·href="#decode/3-example"·class="hover-link"> | 1030 | ··<a·href="#decode/3-example"·class="hover-link"> |
| 1031 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 1031 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 1032 | ··</a> | 1032 | ··</a> |
| 1033 | ··<span·class="text">Example</span> | 1033 | ··<span·class="text">Example</span> |
| 1034 | </h2> | 1034 | </h2> |
| 1035 | <p>Decoding·object·keys·as·atoms:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="n">Push</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id="3958257204-1">(</span><span·class="n">Key</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Value</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Acc</span><span·class="p"·data-group-id="3958257204-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="p"·data-group-id="3958257204-2">[</span><span·class="p"·data-group-id="3958257204-3">{</span><span·class="nf">binary_to_existing_atom</span><span·class="p"·data-group-id="3958257204-4">(</span><span·class="n">Key</span><span·class="p"·data-group-id="3958257204-4">)</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Value</span><span·class="p"·data-group-id="3958257204-3">}</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="n">Acc</span><span·class="p"·data-group-id="3958257204-2">]</span><span·class="w">·</span><span·class="k">end</span><span·class="p">.</span><span·class="gp·unselectable"> | ||
| 1036 | 1035 | <p>Decoding·object·keys·as·atoms:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="n">Push</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><sp[·...·truncated·by·diffoscope;·len:·1022,·SHA:·f3e884cd3dffc3d7388dc60f898b3c7efd7f6cdb68b602e7af8837dc0c36b962·...·]"> | |
| 1036 | >·</span><span·class="nc">json</span><span·class="p">:</span><span·class="nf">decode</span><span·class="p"·data-group-id="3482206292-5">(</span><span·class="p"·data-group-id="3482206292-6"><<</span><span·class="s">"{\"foo\":·1}"</span><span·class="p"·data-group-id="3482206292-6">>></span><span·class="p">,</span><span·class="w">·</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3482206292-7">#{</span><span·class="ss">object_push</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="n">Push</span><span·class="p"·data-group-id="3482206292-7">}</span><span·class="p"·data-group-id="3482206292-5">)</span><span·class="p">.</span><span·class="w"> | ||
| 1037 | </span><span·class="p"·data-group-id="3 | 1037 | </span><span·class="p"·data-group-id="3482206292-8">{</span><span·class="p"·data-group-id="3482206292-9">#{</span><span·class="ss">foo</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="mi">1</span><span·class="p"·data-group-id="3482206292-9">}</span>[·...·truncated·by·diffoscope;·len:·237,·SHA:·5901da19be8834e3be11b1418daec388ece96432c21e9ac2b965c3818a0567d1·...·]-8">}</span></code></pre> |
| 1038 | ··</section> | 1038 | ··</section> |
| 1039 | </section> | 1039 | </section> |
| 1040 | <section·class="detail"·id="decode_continue/2"> | 1040 | <section·class="detail"·id="decode_continue/2"> |
| 1041 | ··<div·class="detail-header"> | 1041 | ··<div·class="detail-header"> |
| 1042 | ····<a·href="#decode_continue/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 1042 | ····<a·href="#decode_continue/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 1043 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 1043 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 1061, 19 lines modified | Offset 1061, 19 lines modified | ||
| 1061 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·decode_continue(<a·href="../../../../erts-16.0/doc/html/erlang.html#t:binary/0">binary</a>()·|·end_of_input,·Opaque·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>())·-> | 1061 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·decode_continue(<a·href="../../../../erts-16.0/doc/html/erlang.html#t:binary/0">binary</a>()·|·end_of_input,·Opaque·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>())·-> |
| 1062 | ·························{Result·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:dynamic/0">dynamic</a>(),·Acc·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:dynamic/0">dynamic</a>(),·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:binary/0">binary</a>()}·| | 1062 | ·························{Result·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:dynamic/0">dynamic</a>(),·Acc·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:dynamic/0">dynamic</a>(),·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:binary/0">binary</a>()}·| |
| 1063 | ·························{continue,·<a·href="#t:continuation_state/0">continuation_state</a>()}.</pre> | 1063 | ·························{continue,·<a·href="#t:continuation_state/0">continuation_state</a>()}.</pre> |
| 1064 | ······</div> | 1064 | ······</div> |
| 1065 | <p>Continue·parsing·a·stream·of·bytes·of·a·JSON·value.</p><p>Similar·to·<a·href="#decode_start/3"><code·class="inline">decode_start/3</code></a>,·if·the·function·returns·<code·class="inline">{continue,·State}</code>·and | 1065 | <p>Continue·parsing·a·stream·of·bytes·of·a·JSON·value.</p><p>Similar·to·<a·href="#decode_start/3"><code·class="inline">decode_start/3</code></a>,·if·the·function·returns·<code·class="inline">{continue,·State}</code>·and |
| 1066 | there·is·no·more·data,·use·<code·class="inline">end_of_input</code>·instead·of·a·binary.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="p"·data-group-id="0068924611-1">{</span><span·class="ss">continue</span><span·class="p">,</span><span·class="w">·</span><span·class="n">State</span><span·class="p"·data-group-id="0068924611-1">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">json</span><span·class="p">:</span><span·class="nf">decode_start</span><span·class="p"·data-group-id="0068924611-2">(</span><span·class="p"·data-group-id="0068924611-3"><<</span><span·class="s">"{\"foo\":"</span><span·class="p"·data-group-id="0068924611-3">>></span><span·class="p">,</span><span·class="w">·</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0068924611-4">#{</span><span·class="p"·data-group-id="0068924611-4">}</span><span·class="p"·data-group-id="0068924611-2">)</span><span·class="p">.</span><span·class="gp·unselectable"> | ||
| 1067 | >·</span><span·class="nc">json</span><span·class="p">:</span><span·class="nf">decode_continue</span><span·class="p"·data-group-id="0068924611-5">(</span><span·class="p"·data-group-id="0068924611-6"><<</span><span·class="s">"1}"</span><span·class="p"·data-group-id="0068924611-6">>></span><span·class="p">,</span><span·class="w">·</span><span·class="n">State</span><span·class="p"·data-group-id="0068924611-5">)</span><span·class="p">.</span><span·class="w"> | ||
| 1068 | 1066 | there·is·no·more·data,·use·<code·class="inline">end_of_input</code>·instead·of·a·binary.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="p"·data-group-id="2032919300-1">{</span><span·class="ss">cont[·...·truncated·by·diffoscope;·len:·797,·SHA:·f9a5910b160135213cbf70527292c748ab771f8feee235ed5c271f51deffc20a·...·]-2">)</span><span·class="p">.</span><span·class="gp·unselectable"> | |
| 1067 | >·</span><span·class="nc">json</span><span·class="p">:</span><span·class="nf">decode_continue</span><span·class="p"·data-group-id="2032919300-5">(</span><span·class="p"·data-group-id="2032919300-6"><<</span><span·class="s">"1}"</span><span·class="p"·data-group-id="2032919300-6">>></span><span·class="p">,</span><span·class="w">·</span><span·class="n">State</span><span·class="p"·data-group-id="2032919300-5">)</span><span·class="p">.</span><span·class="w"> | ||
| 1068 | </span><span·class="p"·data-group-id="2032919300-7">{</span><span·class="p"·data-group-id="2032919300-8">#{</span><span·class="ss">foo</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="mi">1</span><span·class="p"·data-group-id="2032919300-8">}</span><span·class="p">,</span><span·class="ss">ok</span><span·class="p">,</span><span·class="p"·data-group-id="2032919300-9"><<</span><span·class="p"·data-group-id="2032919300-9">>></span><span·class="p"·data-group-id="2032919300-7">}</span></code></pre><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="p"·data-group-id="2744870655-1">{</span><span·class="ss">continue</span><span·class="p">,</span><span·class="w">·</span><span·class="n">State</span><span·class="p"·data-group-id="2744870655-1">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">json</span><span·class="p">:</span><span·class="nf">decode_start</span><span·class="p"·data-group-id="2744870655-2">(</span><span·class="p"·data-group-id="2744870655-3"><<</span><span·class="s">"123"</span><span·class="p"·data-group-id="2744870655-3">>></span><span·class="p">,</span><span·class="w">·</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2744870655-4">#{</span><span·class="p"·data-group-id="2744870655-4">}</span><span·class="p"·data-group-id="2744870655-2">)</span><span·class="p">.</span><span·class="gp·unselectable"> | ||
| 1069 | >·</span><span·class="nc">json</span><span·class="p">:</span><span·class="nf">decode_continue</span><span·class="p"·data-group-id="2 | 1069 | >·</span><span·class="nc">json</span><span·class="p">:</span><span·class="nf">decode_continue</span><span·class="p"·data-group-id="2744870655-5">(</span><span·class="ss">end_of_input</span><span·class="p">,</span><span·class="w">·</span><span·class="n">State</span><span·class="p"·data-group-id="2744870655-5">)</span><span·class="p">.</span><span·class="w"> |
| 1070 | </span><span·class="p"·data-group-id="2 | 1070 | </span><span·class="p"·data-group-id="2744870655-6">{</span><span·class="mi">123</span><span·class="p">,</span><span·class="ss">ok</span><span·class="p">,</span><span·class="p"·data-group-id="2744870655-7"><<</span><span·class="p"·data-group-id="2744870655-7">>></span><span·class="p[·...·truncated·by·diffoscope;·len:·27,·SHA:·7b269ac01142e13c6549f18c98a4dbd0f8d9ed2811d1a757c527eb89d3ea2d17·...·]-6">}</span></code></pre> |
| 1071 | ··</section> | 1071 | ··</section> |
| 1072 | </section> | 1072 | </section> |
| 1073 | <section·class="detail"·id="decode_start/3"> | 1073 | <section·class="detail"·id="decode_start/3"> |
| 1074 | ··<div·class="detail-header"> | 1074 | ··<div·class="detail-header"> |
| 1075 | ····<a·href="#decode_start/3"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 1075 | ····<a·href="#decode_start/3"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 1076 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 1076 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 1131, 16 lines modified | Offset 1131, 16 lines modified | ||
| 1131 | <p>Generates·JSON·corresponding·to·<code·class="inline">Term</code>.</p><p>Supports·basic·data·mapping:</p><table><thead><tr><th·style="text-align:·left;"><strong>Erlang</strong></th><th·style="text-align:·left;"><strong>JSON</strong></th></tr></thead><tbody><tr><td·style="text-align:·left;"><code·class="inline">integer()·|·float()</code></td><td·style="text-align:·left;">Number</td></tr><tr><td·style="text-align:·left;"><code·class="inline">true·|·false</code></td><td·style="text-align:·left;">Boolean</td></tr><tr><td·style="text-align:·left;"><code·class="inline">null</code></td><td·style="text-align:·left;">Null</td></tr><tr><td·style="text-align:·left;"><code·class="inline">binary()</code></td><td·style="text-align:·left;">String</td></tr><tr><td·style="text-align:·left;"><code·class="inline">atom()</code></td><td·style="text-align:·left;">String</td></tr><tr><td·style="text-align:·left;"><code·class="inline">list()</code></td><td·style="text-align:·left;">Array</td></tr><tr><td·style="text-align:·left;"><code·class="inline">#{binary()·=>·_}</code></td><td·style="text-align:·left;">Object</td></tr><tr><td·style="text-align:·left;"><code·class="inline">#{atom()·=>·_}</code></td><td·style="text-align:·left;">Object</td></tr><tr><td·style="text-align:·left;"><code·class="inline">#{integer()·=>·_}</code></td><td·style="text-align:·left;">Object</td></tr></tbody></table><p>This·is·equivalent·to·<code·class="inline">encode(Term,·fun·json:encode_value/2)</code>.</p><h2·id="encode/1-examples"·class="section-heading"> | 1131 | <p>Generates·JSON·corresponding·to·<code·class="inline">Term</code>.</p><p>Supports·basic·data·mapping:</p><table><thead><tr><th·style="text-align:·left;"><strong>Erlang</strong></th><th·style="text-align:·left;"><strong>JSON</strong></th></tr></thead><tbody><tr><td·style="text-align:·left;"><code·class="inline">integer()·|·float()</code></td><td·style="text-align:·left;">Number</td></tr><tr><td·style="text-align:·left;"><code·class="inline">true·|·false</code></td><td·style="text-align:·left;">Boolean</td></tr><tr><td·style="text-align:·left;"><code·class="inline">null</code></td><td·style="text-align:·left;">Null</td></tr><tr><td·style="text-align:·left;"><code·class="inline">binary()</code></td><td·style="text-align:·left;">String</td></tr><tr><td·style="text-align:·left;"><code·class="inline">atom()</code></td><td·style="text-align:·left;">String</td></tr><tr><td·style="text-align:·left;"><code·class="inline">list()</code></td><td·style="text-align:·left;">Array</td></tr><tr><td·style="text-align:·left;"><code·class="inline">#{binary()·=>·_}</code></td><td·style="text-align:·left;">Object</td></tr><tr><td·style="text-align:·left;"><code·class="inline">#{atom()·=>·_}</code></td><td·style="text-align:·left;">Object</td></tr><tr><td·style="text-align:·left;"><code·class="inline">#{integer()·=>·_}</code></td><td·style="text-align:·left;">Object</td></tr></tbody></table><p>This·is·equivalent·to·<code·class="inline">encode(Term,·fun·json:encode_value/2)</code>.</p><h2·id="encode/1-examples"·class="section-heading"> |
| 1132 | ··<a·href="#encode/1-examples"·class="hover-link"> | 1132 | ··<a·href="#encode/1-examples"·class="hover-link"> |
| 1133 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 1133 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 1134 | ··</a> | 1134 | ··</a> |
| 1135 | ··<span·class="text">Examples</span> | 1135 | ··<span·class="text">Examples</span> |
| 1136 | </h2> | 1136 | </h2> |
| 1137 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="nf">iolist_to_binary</span><span·class="p"·data-group-id=" | 1137 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="nf">iolist_to_binary</span><span·class="p"·data-group-id="5245125511-1">(</span><span·class="nc">json</span><span·class="p">:</span><span·class="nf">encode</span><span·class="p"·data-group-id="5245125511-2">(</span><span·class="p"·data-group-id="5245125511-3">#{</span><span·class="ss">foo</span><span·class="w">·<[·...·truncated·by·diffoscope;·len:·363,·SHA:·a06be340bc91762d87e1f830c56d1d44d618611f08cd9f5811d71ae89d5a2610·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 1138 | </span><span·class="p"·data-group-id=" | 1138 | </span><span·class="p"·data-group-id="5245125511-5"><<</span><span·class="s">"{\"foo\":\"bar\"}"</span><span·class="p"·data-group-id="5245125511-5">>></span></code></pre> |
| 1139 | ··</section> | 1139 | ··</section> |
| 1140 | </section> | 1140 | </section> |
| 1141 | <section·class="detail"·id="encode/2"> | 1141 | <section·class="detail"·id="encode/2"> |
| 1142 | ··<div·class="detail-header"> | 1142 | ··<div·class="detail-header"> |
| 1143 | ····<a·href="#encode/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 1143 | ····<a·href="#encode/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 1144 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 1144 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 1171, 19 lines modified | Offset 1171, 19 lines modified | ||
| 1171 | to·help·in·constructing·such·callbacks.</p><h2·id="encode/2-examples"·class="section-heading"> | 1171 | to·help·in·constructing·such·callbacks.</p><h2·id="encode/2-examples"·class="section-heading"> |
| 1172 | ··<a·href="#encode/2-examples"·class="hover-link"> | 1172 | ··<a·href="#encode/2-examples"·class="hover-link"> |
| 1173 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 1173 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 1174 | ··</a> | 1174 | ··</a> |
| 1175 | ··<span·class="text">Examples</span> | 1175 | ··<span·class="text">Examples</span> |
| 1176 | </h2> | 1176 | </h2> |
| 1177 | <p>An·encoder·that·uses·a·heuristic·to·differentiate·object-like | 1177 | <p>An·encoder·that·uses·a·heuristic·to·differentiate·object-like |
| 1178 | lists·of·key-value·pairs·from·plain·lists:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="nf">encoder</span><span·class="p"·data-group-id=" | 1178 | lists·of·key-value·pairs·from·plain·lists:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="nf">encoder</span><span·class="p"·data-group-id="9770211579-1">(</span><span·class="p"·data-group-id="9770211579-2">[</span><span·class="p"·data-group-id="9770211579-3">{</span><span·class="p">_</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="p"·data-group-id="9[·...·truncated·by·diffoscope;·len:·772,·SHA:·22b8f2fb88217688e26e74a7b4ae1ecd1f2900abcaf026b5635c5f5559a0f60a·...·]-4">)</span><span·class="p">;</span><span·class="gp·unselectable"> |
| 1179 | >·</span><span·class="nf">encoder</span><span·class="p"·data-group-id=" | 1179 | >·</span><span·class="nf">encoder</span><span·class="p"·data-group-id="9770211579-5">(</span><span·class="n">Other</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Encode</span><span·class="p"·data-group-id="9770211579-5">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span>[·...·truncated·by·diffoscope;·len:·287,·SHA:·9dbe8d2a5546af0bde237c4c1a88e8f4b6af94338d4fd47ba8900909fa176c89·...·]-6">)</span><span·class="p">.</span><span·class="gp·unselectable"> |
| 1180 | >·</span><span·class="nf">custom_encode</span><span·class="p"·data-group-id=" | 1180 | >·</span><span·class="nf">custom_encode</span><span·class="p"·data-group-id="9770211579-7">(</span><span·class="n">Value</span><span·class="p"·data-group-id="9770211579-7">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="nc">json</span><span·class="p">:</span><span·class="nf">encode</[·...·truncated·by·diffoscope;·len:·783,·SHA:·74e810f72e28ec1673bba7ed44ae4b9f5670e453f0af6bedc6e812edb74bbce0·...·]-8">)</span><span·class="p">.</span><span·class="gp·unselectable"> |
| 1181 | >·</span><span·class="nf">iolist_to_binary</span><span·class="p"·data-group-id=" | 1181 | >·</span><span·class="nf">iolist_to_binary</span><span·class="p"·data-group-id="9770211579-11">(</span><span·class="nf">custom_encode</span><span·class="p"·data-group-id="9770211579-12">(</span><span·class="p"·data-group-id="9770211579-13">[</span><span·class="p"·data-group-id="9770211579-14">{</span><span·class="ss">a</span><span·cla[·...·truncated·by·diffoscope;·len:·604,·SHA:·3732cac0bc744ee9f52d67f44a1ce84938a6809ab51542422c171f5bb25e2de3·...·]-11">)</span><span·class="p">.</span><span·class="w"> |
| 1182 | </span><span·class="p"·data-group-id=" | 1182 | </span><span·class="p"·data-group-id="9770211579-17"><<</span><span·class="s">"{\"a\":[],\"b\":1}"</span><span·class="p"·data-group-id="9770211579-17">>></span></code></pre> |
| 1183 | ··</section> | 1183 | ··</section> |
| 1184 | </section> | 1184 | </section> |
| 1185 | <section·class="detail"·id="encode_atom/2"> | 1185 | <section·class="detail"·id="encode_atom/2"> |
| 1186 | ··<div·class="detail-header"> | 1186 | ··<div·class="detail-header"> |
| 1187 | ····<a·href="#encode_atom/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 1187 | ····<a·href="#encode_atom/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 1188 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 1188 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
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| 1542 | ······<div·class="specs"> | 1542 | ······<div·class="specs"> |
| 1543 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·format(Term·::·<a·href="#t:encode_value/0">encode_value</a>())·->·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:iodata/0">iodata</a>().</pre> | 1543 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·format(Term·::·<a·href="#t:encode_value/0">encode_value</a>())·->·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:iodata/0">iodata</a>().</pre> |
| 1544 | ······</div> | 1544 | ······</div> |
| 1545 | <p>Generates·formatted·JSON·corresponding·to·<code·class="inline">Term</code>.</p><p>Similiar·to·<a·href="#encode/1"><code·class="inline">encode/1</code></a>·but·with·added·whitespaces·for·formatting.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">put_chars</span><span·class="p"·data-group-id="8 | 1545 | <p>Generates·formatted·JSON·corresponding·to·<code·class="inline">Term</code>.</p><p>Similiar·to·<a·href="#encode/1"><code·class="inline">encode/1</code></a>·but·with·added·whitespaces·for·formatting.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">put_chars</span><span·class="p"·data-group-id="8837492797-1">(</span><span·class="nc">json</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="8837492797-2">(</span><span·class="p"·data-group-id="8837492797-3">#{</span><span·class="ss">foo</span><span·class="w">·</[·...·truncated·by·diffoscope;·len:·539,·SHA:·c7d11b34b37b2fcca12878948825dbab4ff650acca0afe978f12a5b3879d1f42·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 1546 | </span><span·class="p"·data-group-id="8 | 1546 | </span><span·class="p"·data-group-id="8837492797-5">{</span><span·class="w"> |
| 1547 | ··</span><span·class="s">"baz"</span><span·class="p">:</span><span·class="w">·</span><span·class="mi">52</span><span·class="p">,</span><span·class="w"> | 1547 | ··</span><span·class="s">"baz"</span><span·class="p">:</span><span·class="w">·</span><span·class="mi">52</span><span·class="p">,</span><span·class="w"> |
| 1548 | ··</span><span·class="s">"foo"</span><span·class="p">:</span><span·class="w">·</span><span·class="s">"bar"</span><span·class="w"> | 1548 | ··</span><span·class="s">"foo"</span><span·class="p">:</span><span·class="w">·</span><span·class="s">"bar"</span><span·class="w"> |
| 1549 | </span><span·class="p"·data-group-id="8 | 1549 | </span><span·class="p"·data-group-id="8837492797-5">}</span><span·class="w"> |
| 1550 | </span><span·class="ss">ok</span></code></pre> | 1550 | </span><span·class="ss">ok</span></code></pre> |
| 1551 | ··</section> | 1551 | ··</section> |
| 1552 | </section> | 1552 | </section> |
| 1553 | <section·class="detail"·id="format/2"> | 1553 | <section·class="detail"·id="format/2"> |
| 1554 | ··<div·class="detail-header"> | 1554 | ··<div·class="detail-header"> |
| 1555 | ····<a·href="#format/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 1555 | ····<a·href="#format/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
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| 1607 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·format(Term·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:dynamic/0">dynamic</a>(),·Encoder·::·<a·href="#t:formatter/0">formatter</a>(),·Options·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:map/0">map</a>())·->·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:iodata/0">iodata</a>().</pre> | 1607 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·format(Term·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:dynamic/0">dynamic</a>(),·Encoder·::·<a·href="#t:formatter/0">formatter</a>(),·Options·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:map/0">map</a>())·->·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:iodata/0">iodata</a>().</pre> |
| 1608 | ······</div> | 1608 | ······</div> |
| 1609 | <p>Generates·formatted·JSON·corresponding·to·<code·class="inline">Term</code>.</p><p>Similar·to·<a·href="#encode/2"><code·class="inline">encode/2</code></a>,·can·be·customised·with·the·<code·class="inline">Encoder</code>·callback·and·<code·class="inline">Options</code>.</p><p><code·class="inline">Options</code>·can·include·'indent'·to·specify·number·of·spaces·per·level·and·'max'·which·loosely·limits | 1609 | <p>Generates·formatted·JSON·corresponding·to·<code·class="inline">Term</code>.</p><p>Similar·to·<a·href="#encode/2"><code·class="inline">encode/2</code></a>,·can·be·customised·with·the·<code·class="inline">Encoder</code>·callback·and·<code·class="inline">Options</code>.</p><p><code·class="inline">Options</code>·can·include·'indent'·to·specify·number·of·spaces·per·level·and·'max'·which·loosely·limits |
| 1610 | the·width·of·lists.</p><p>The·<code·class="inline">Encoder</code>·will·get·a·'State'·argument·which·contains·the·'Options'·maps·merged·with·other·data | 1610 | the·width·of·lists.</p><p>The·<code·class="inline">Encoder</code>·will·get·a·'State'·argument·which·contains·the·'Options'·maps·merged·with·other·data |
| 1611 | when·recursing·through·'Term'.</p><p><a·href="#format_value/3"><code·class="inline">format_value/3</code></a>·or·various·<code·class="inline">encode_*</code>·functions·in·this·module·can·be·used | 1611 | when·recursing·through·'Term'.</p><p><a·href="#format_value/3"><code·class="inline">format_value/3</code></a>·or·various·<code·class="inline">encode_*</code>·functions·in·this·module·can·be·used |
| 1612 | to·help·in·constructing·such·callbacks.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="nf">formatter</span><span·class="p"·data-group-id=" | 1612 | to·help·in·constructing·such·callbacks.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="nf">formatter</span><span·class="p"·data-group-id="1003849773-1">(</span><span·class="p"·data-group-id="1003849773-2">{</span><span·class="ss">posix_time</span><span·class="p">,</span><span·class="w">·</span><span·class="n">SysTimeSecs</span><span·class="p"·data-group-id="1003849773-2">}</span><span·class=[·...·truncated·by·diffoscope;·len:·182,·SHA:·2d2ce91254441415754d485d71506109d1a50cb8fb85769106ff162efb7e0fd4·...·]-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 1613 | ····</span><span·class="n">TimeStr</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">calendar</span><span·class="p">:</span><span·class="nf">system_time_to_rfc3339</span><span·class="p"·data-group-id=" | 1613 | ····</span><span·class="n">TimeStr</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">calendar</span><span·class="p">:</span><span·class="nf">system_time_to_rfc3339</span><span·class="p"·data-group-id="1003849773-3">(</span><span·class="n">SysTimeSecs</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1003849773-4">[</span><span·class="p"·data-group-id="1003849773-5">{</span><span·class="ss">offset</span><span·class="p">[·...·truncated·by·diffoscope;·len:·215,·SHA:·384b52c6a428e8db3e390f4aa9815365f838c36d21bf48a0ecacf50cd446da6a·...·]-3">)</span><span·class="p">,</span><span·class="w"> |
| 1614 | ····</span><span·class="nc">json</span><span·class="p">:</span><span·class="nf">format_value</span><span·class="p"·data-group-id=" | 1614 | ····</span><span·class="nc">json</span><span·class="p">:</span><span·class="nf">format_value</span><span·class="p"·data-group-id="1003849773-6">(</span><span·class="nc">unicode</span><span·class="p">:</span><span·class="nf">characters_to_binary</span><span·class="p"·data-group-id="1003849773-7">(</span><span·class="n">TimeStr</span><span·class="p"·data-group-id="1003849773-7">)</span[·...·truncated·by·diffoscope;·len:·195,·SHA:·da591a107b44861e094bf0e1f6d3a6ba7f24f04d0cad440d4d45b999e50aaa03·...·]-6">)</span><span·class="p">;</span><span·class="gp·unselectable"> |
| 1615 | >·</span><span·class="nf">formatter</span><span·class="p"·data-group-id=" | 1615 | >·</span><span·class="nf">formatter</span><span·class="p"·data-group-id="1003849773-8">(</span><span·class="n">Other</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Encode</span><span·class="p">,</span><span·class="w">·</span><span·class="n">State</span><span·class="p"·data-group-id="1003849773-8">)</span>[·...·truncated·by·diffoscope;·len:·439,·SHA:·b4e7e85a7eebdfaa0695b1b87b2134617c94c595c575426f7f859db389a258b1·...·]-9">)</span><span·class="p">.</span><span·class="w"> |
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| 443 | ······<p·class="built-using"> | 443 | ······<p·class="built-using"> |
| 444 | ········Built·using | 444 | ········Built·using |
| 445 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 445 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 446 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 446 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 447 | ······</p> | 447 | ······</p> |
| 448 | <p>Copyright·©·1996-202 | 448 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 449 | ····</footer> | 449 | ····</footer> |
| 450 | ··</div> | 450 | ··</div> |
| 451 | </main> | 451 | </main> |
| 452 | </div> | 452 | </div> |
| 453 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 453 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 454 | ··<script> | 454 | ··<script> |
| 455 | ··let·initialized·=·false; | 455 | ··let·initialized·=·false; |
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| 445 | <p>Returns·the·arc·cosine·of·<code·class="inline">X</code>·in·radians.</p><h2·id="acos/1-examples"·class="section-heading"> | 445 | <p>Returns·the·arc·cosine·of·<code·class="inline">X</code>·in·radians.</p><h2·id="acos/1-examples"·class="section-heading"> |
| 446 | ··<a·href="#acos/1-examples"·class="hover-link"> | 446 | ··<a·href="#acos/1-examples"·class="hover-link"> |
| 447 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 447 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 448 | ··</a> | 448 | ··</a> |
| 449 | ··<span·class="text">Examples</span> | 449 | ··<span·class="text">Examples</span> |
| 450 | </h2> | 450 | </h2> |
| 451 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">math</span><span·class="p">:</span><span·class="nf">acos</span><span·class="p"·data-group-id=" | 451 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">math</span><span·class="p">:</span><span·class="nf">acos</span><span·class="p"·data-group-id="7826123852-1">(</span><span·class="mf">1.0</span><span·class="p"·data-group-id="7826123852-1">)</span><span·class="p">.</span><span·class="w"> |
| 452 | </span><span·class="mf">0.0</span></code></pre> | 452 | </span><span·class="mf">0.0</span></code></pre> |
| 453 | ··</section> | 453 | ··</section> |
| 454 | </section> | 454 | </section> |
| 455 | <section·class="detail"·id="acosh/1"> | 455 | <section·class="detail"·id="acosh/1"> |
| 456 | ··<div·class="detail-header"> | 456 | ··<div·class="detail-header"> |
| 457 | ····<a·href="#acosh/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 457 | ····<a·href="#acosh/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
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| 478 | <p>Returns·the·inverse·hyperbolic·cosine·of·<code·class="inline">X</code>.</p><h2·id="acosh/1-examples"·class="section-heading"> | 478 | <p>Returns·the·inverse·hyperbolic·cosine·of·<code·class="inline">X</code>.</p><h2·id="acosh/1-examples"·class="section-heading"> |
| 479 | ··<a·href="#acosh/1-examples"·class="hover-link"> | 479 | ··<a·href="#acosh/1-examples"·class="hover-link"> |
| 480 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 480 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 481 | ··</a> | 481 | ··</a> |
| 482 | ··<span·class="text">Examples</span> | 482 | ··<span·class="text">Examples</span> |
| 483 | </h2> | 483 | </h2> |
| 484 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">math</span><span·class="p">:</span><span·class="nf">acosh</span><span·class="p"·data-group-id=" | 484 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">math</span><span·class="p">:</span><span·class="nf">acosh</span><span·class="p"·data-group-id="2955731757-1">(</span><span·class="mf">1.0</span><span·class="p"·data-group-id="2955731757-1">)</span><span·class="p">.</span><span·class="w"> |
| 485 | </span><span·class="mf">0.0</span></code></pre> | 485 | </span><span·class="mf">0.0</span></code></pre> |
| 486 | ··</section> | 486 | ··</section> |
| 487 | </section> | 487 | </section> |
| 488 | <section·class="detail"·id="asin/1"> | 488 | <section·class="detail"·id="asin/1"> |
| 489 | ··<div·class="detail-header"> | 489 | ··<div·class="detail-header"> |
| 490 | ····<a·href="#asin/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 490 | ····<a·href="#asin/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
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| 511 | <p>Returns·the·arc·cosine·of·<code·class="inline">X</code>·in·radians.</p><h2·id="asin/1-examples"·class="section-heading"> | 511 | <p>Returns·the·arc·cosine·of·<code·class="inline">X</code>·in·radians.</p><h2·id="asin/1-examples"·class="section-heading"> |
| 512 | ··<a·href="#asin/1-examples"·class="hover-link"> | 512 | ··<a·href="#asin/1-examples"·class="hover-link"> |
| 513 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 513 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 514 | ··</a> | 514 | ··</a> |
| 515 | ··<span·class="text">Examples</span> | 515 | ··<span·class="text">Examples</span> |
| 516 | </h2> | 516 | </h2> |
| 517 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">math</span><span·class="p">:</span><span·class="nf">asin</span><span·class="p"·data-group-id=" | 517 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">math</span><span·class="p">:</span><span·class="nf">asin</span><span·class="p"·data-group-id="7327842697-1">(</span><span·class="mf">0.0</span><span·class="p"·data-group-id="7327842697-1">)</span><span·class="p">.</span><span·class="w"> |
| 518 | </span><span·class="mf">0.0</span></code></pre> | 518 | </span><span·class="mf">0.0</span></code></pre> |
| 519 | ··</section> | 519 | ··</section> |
| 520 | </section> | 520 | </section> |
| 521 | <section·class="detail"·id="asinh/1"> | 521 | <section·class="detail"·id="asinh/1"> |
| 522 | ··<div·class="detail-header"> | 522 | ··<div·class="detail-header"> |
| 523 | ····<a·href="#asinh/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 523 | ····<a·href="#asinh/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
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| 544 | <p>Returns·the·inverse·hyperbolic·sine·of·<code·class="inline">X</code>.</p><h2·id="asinh/1-examples"·class="section-heading"> | 544 | <p>Returns·the·inverse·hyperbolic·sine·of·<code·class="inline">X</code>.</p><h2·id="asinh/1-examples"·class="section-heading"> |
| 545 | ··<a·href="#asinh/1-examples"·class="hover-link"> | 545 | ··<a·href="#asinh/1-examples"·class="hover-link"> |
| 546 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 546 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 547 | ··</a> | 547 | ··</a> |
| 548 | ··<span·class="text">Examples</span> | 548 | ··<span·class="text">Examples</span> |
| 549 | </h2> | 549 | </h2> |
| 550 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">math</span><span·class="p">:</span><span·class="nf">asinh</span><span·class="p"·data-group-id=" | 550 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">math</span><span·class="p">:</span><span·class="nf">asinh</span><span·class="p"·data-group-id="0363750793-1">(</span><span·class="mf">0.0</span><span·class="p"·data-group-id="0363750793-1">)</span><span·class="p">.</span><span·class="w"> |
| 551 | </span><span·class="mf">0.0</span></code></pre> | 551 | </span><span·class="mf">0.0</span></code></pre> |
| 552 | ··</section> | 552 | ··</section> |
| 553 | </section> | 553 | </section> |
| 554 | <section·class="detail"·id="atan2/2"> | 554 | <section·class="detail"·id="atan2/2"> |
| 555 | ··<div·class="detail-header"> | 555 | ··<div·class="detail-header"> |
| 556 | ····<a·href="#atan2/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 556 | ····<a·href="#atan2/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
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| 578 | <p>Returns·the·arc·tangent·of·<code·class="inline">Y</code>/<code·class="inline">X</code>·in·radians,·using·the·signs·of·both | 578 | <p>Returns·the·arc·tangent·of·<code·class="inline">Y</code>/<code·class="inline">X</code>·in·radians,·using·the·signs·of·both |
| 579 | arguments·to·determine·the·quadrant·of·the·return·value.</p><h2·id="atan2/2-examples"·class="section-heading"> | 579 | arguments·to·determine·the·quadrant·of·the·return·value.</p><h2·id="atan2/2-examples"·class="section-heading"> |
| 580 | ··<a·href="#atan2/2-examples"·class="hover-link"> | 580 | ··<a·href="#atan2/2-examples"·class="hover-link"> |
| 581 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 581 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 582 | ··</a> | 582 | ··</a> |
| 583 | ··<span·class="text">Examples</span> | 583 | ··<span·class="text">Examples</span> |
| 584 | </h2> | 584 | </h2> |
| 585 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">math</span><span·class="p">:</span><span·class="nf">atan2</span><span·class="p"·data-group-id=" | 585 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">math</span><span·class="p">:</span><span·class="nf">atan2</span><span·class="p"·data-group-id="4722568551-1">(</span><span·class="mf">0.0</span><span·class="p">,</span><span·class="w">·</span><span·class="o">-</span><span·class="mf">10.0</span><span·class="p"·data-group-id="4722568551-1">)</span><span·class="p">.</span><span·class="w"> |
| 586 | </span><span·class="mf">3.141592653589793</span></code></pre> | 586 | </span><span·class="mf">3.141592653589793</span></code></pre> |
| 587 | ··</section> | 587 | ··</section> |
| 588 | </section> | 588 | </section> |
| 589 | <section·class="detail"·id="atan/1"> | 589 | <section·class="detail"·id="atan/1"> |
| 590 | ··<div·class="detail-header"> | 590 | ··<div·class="detail-header"> |
| 591 | ····<a·href="#atan/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 591 | ····<a·href="#atan/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
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| 611 | <p>Returns·the·arc·tangent·of·<code·class="inline">X</code>·in·radians.</p><h2·id="atan/1-examples"·class="section-heading"> | 611 | <p>Returns·the·arc·tangent·of·<code·class="inline">X</code>·in·radians.</p><h2·id="atan/1-examples"·class="section-heading"> |
| 612 | ··<a·href="#atan/1-examples"·class="hover-link"> | 612 | ··<a·href="#atan/1-examples"·class="hover-link"> |
| 613 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 613 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 614 | ··</a> | 614 | ··</a> |
| 615 | ··<span·class="text">Examples</span> | 615 | ··<span·class="text">Examples</span> |
| 616 | </h2> | 616 | </h2> |
| 617 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">math</span><span·class="p">:</span><span·class="nf">atan</span><span·class="p"·data-group-id="6 | 617 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">math</span><span·class="p">:</span><span·class="nf">atan</span><span·class="p"·data-group-id="6735829392-1">(</span><span·class="mf">0.0</span><span·class="p"·data-group-id="6735829392-1">)</span><span·class="p">.</span><span·class="w"> |
| 618 | </span><span·class="mf">0.0</span></code></pre> | 618 | </span><span·class="mf">0.0</span></code></pre> |
| 619 | ··</section> | 619 | ··</section> |
| 620 | </section> | 620 | </section> |
| 621 | <section·class="detail"·id="atanh/1"> | 621 | <section·class="detail"·id="atanh/1"> |
| 622 | ··<div·class="detail-header"> | 622 | ··<div·class="detail-header"> |
| 623 | ····<a·href="#atanh/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 623 | ····<a·href="#atanh/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
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| 644 | <p>Returns·the·inverse·hyperbolic·tangent·of·<code·class="inline">X</code>.</p><h2·id="atanh/1-examples"·class="section-heading"> | 644 | <p>Returns·the·inverse·hyperbolic·tangent·of·<code·class="inline">X</code>.</p><h2·id="atanh/1-examples"·class="section-heading"> |
| 645 | ··<a·href="#atanh/1-examples"·class="hover-link"> | 645 | ··<a·href="#atanh/1-examples"·class="hover-link"> |
| 646 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 646 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 647 | ··</a> | 647 | ··</a> |
| 648 | ··<span·class="text">Examples</span> | 648 | ··<span·class="text">Examples</span> |
| 649 | </h2> | 649 | </h2> |
| 650 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">math</span><span·class="p">:</span><span·class="nf">atanh</span><span·class="p"·data-group-id=" | 650 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">math</span><span·class="p">:</span><span·class="nf">atanh</span><span·class="p"·data-group-id="9690238081-1">(</span><span·class="mf">0.0</span><span·class="p"·data-group-id="9690238081-1">)</span><span·class="p">.</span><span·class="w"> |
| 651 | </span><span·class="mf">0.0</span></code></pre> | 651 | </span><span·class="mf">0.0</span></code></pre> |
| 652 | ··</section> | 652 | ··</section> |
| 653 | </section> | 653 | </section> |
| 654 | <section·class="detail"·id="ceil/1"> | 654 | <section·class="detail"·id="ceil/1"> |
| 655 | ··<div·class="detail-header"> | 655 | ··<div·class="detail-header"> |
| 656 | ····<a·href="#ceil/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 656 | ····<a·href="#ceil/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
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| 679 | <p>Returns·the·ceiling·of·<code·class="inline">X</code>.</p><h2·id="ceil/1-examples"·class="section-heading"> | 679 | <p>Returns·the·ceiling·of·<code·class="inline">X</code>.</p><h2·id="ceil/1-examples"·class="section-heading"> |
| 680 | ··<a·href="#ceil/1-examples"·class="hover-link"> | 680 | ··<a·href="#ceil/1-examples"·class="hover-link"> |
| 681 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 681 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 682 | ··</a> | 682 | ··</a> |
| 683 | ··<span·class="text">Examples</span> | 683 | ··<span·class="text">Examples</span> |
| 684 | </h2> | 684 | </h2> |
| 685 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">math</span><span·class="p">:</span><span·class="nf">ceil</span><span·class="p"·data-group-id=" | 685 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">math</span><span·class="p">:</span><span·class="nf">ceil</span><span·class="p"·data-group-id="9590206898-1">(</span><span·class="mf">7.5</span><span·class="p"·data-group-id="9590206898-1">)</span><span·class="p">.</span><span·class="w"> |
| 686 | </span><span·class="mf">8.0</span><span·class="gp·unselectable"> | 686 | </span><span·class="mf">8.0</span><span·class="gp·unselectable"> |
| 687 | 2>·</span><span·class="nc">math</span><span·class="p">:</span><span·class="nf">ceil</span><span·class="p"·data-group-id=" | 687 | 2>·</span><span·class="nc">math</span><span·class="p">:</span><span·class="nf">ceil</span><span·class="p"·data-group-id="9590206898-2">(</span><span·class="o">-</span><span·class="mf">5.5</span><span·class="p"·data-group-id="9590206898-2">)</span><span·class="p">.</span><span·class="w"> |
| 688 | </span><span·class="o">-</span><span·class="mf">5.0</span><span·class="gp·unselectable"> | 688 | </span><span·class="o">-</span><span·class="mf">5.0</span><span·class="gp·unselectable"> |
| 689 | 3>·</span><span·class="nc">math</span><span·class="p">:</span><span·class="nf">ceil</span><span·class="p"·data-group-id=" | 689 | 3>·</span><span·class="nc">math</span><span·class="p">:</span><span·class="nf">ceil</span><span·class="p"·data-group-id="9590206898-3">(</span><span·class="mf">1.0</span><span·class="p"·data-group-id="9590206898-3">)</span><span·class="p">.</span><span·class="w"> |
| 690 | </span><span·class="mf">1.0</span></code></pre> | 690 | </span><span·class="mf">1.0</span></code></pre> |
| 691 | ··</section> | 691 | ··</section> |
| 692 | </section> | 692 | </section> |
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| 150 | ··</a> | 150 | ··</a> |
| 151 | ··<span·class="text">Example·1</span> | 151 | ··<span·class="text">Example·1</span> |
| 152 | </h2> | 152 | </h2> |
| 153 | <p>Using·<a·href="ets.html#select/2"><code·class="inline">ets:select/2</code></a>·and·a·match·specification,·one·can·filter·out·rows·of·a | 153 | <p>Using·<a·href="ets.html#select/2"><code·class="inline">ets:select/2</code></a>·and·a·match·specification,·one·can·filter·out·rows·of·a |
| 154 | table·and·construct·a·list·of·tuples·containing·relevant·parts·of·the·data·in | 154 | table·and·construct·a·list·of·tuples·containing·relevant·parts·of·the·data·in |
| 155 | these·rows.·One·can·use·<a·href="ets.html#foldl/3"><code·class="inline">ets:foldl/3</code></a>·instead,·but·the·<a·href="ets.html#select/2"><code·class="inline">ets:select/2</code></a>·call·is | 155 | these·rows.·One·can·use·<a·href="ets.html#foldl/3"><code·class="inline">ets:foldl/3</code></a>·instead,·but·the·<a·href="ets.html#select/2"><code·class="inline">ets:select/2</code></a>·call·is |
| 156 | far·more·efficient.·Without·the·translation·provided·by·<code·class="inline">ms_transform</code>,·one·must | 156 | far·more·efficient.·Without·the·translation·provided·by·<code·class="inline">ms_transform</code>,·one·must |
| 157 | struggle·with·writing·match·specifications·terms·to·accommodate·this.</p><p>Consider·a·simple·table·of·employees:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id=" | 157 | struggle·with·writing·match·specifications·terms·to·accommodate·this.</p><p>Consider·a·simple·table·of·employees:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id="4515346192-1">(</span><span·class="ss">emp</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4515346192-2">{</span><span·class="ss">empno</span><span·class="p">,</span><span·class="w">·····</span><span·class="c1">%Employee·number·as·a·string,·the·key</span><span·class="w"> |
| 158 | ··············</span><span·class="ss">surname</span><span·class="p">,</span><span·class="w">···</span><span·class="c1">%Surname·of·the·employee</span><span·class="w"> | 158 | ··············</span><span·class="ss">surname</span><span·class="p">,</span><span·class="w">···</span><span·class="c1">%Surname·of·the·employee</span><span·class="w"> |
| 159 | ··············</span><span·class="ss">givenname</span><span·class="p">,</span><span·class="w">·</span><span·class="c1">%Given·name·of·employee</span><span·class="w"> | 159 | ··············</span><span·class="ss">givenname</span><span·class="p">,</span><span·class="w">·</span><span·class="c1">%Given·name·of·employee</span><span·class="w"> |
| 160 | ··············</span><span·class="ss">dept</span><span·class="p">,</span><span·class="w">······</span><span·class="c1">%Department,·one·of·{dev,sales,prod,adm}</span><span·class="w"> | 160 | ··············</span><span·class="ss">dept</span><span·class="p">,</span><span·class="w">······</span><span·class="c1">%Department,·one·of·{dev,sales,prod,adm}</span><span·class="w"> |
| 161 | ··············</span><span·class="ss">empyear</span><span·class="p"·data-group-id=" | 161 | ··············</span><span·class="ss">empyear</span><span·class="p"·data-group-id="4515346192-2">}</span><span·class="p"·data-group-id="4515346192-1">)</span><span·class="p">.</span><span·class="w">·</span><span·class="c1">%Year·the·employee·was·employed</span></code></pre><p>We·create·the·table·using:</p><pre><code·class="text">ets:new([·...·truncated·by·diffoscope;·len:·641,·SHA:·37b78b4efb51fd438d65a7d17f112d3fb6d893b0a90b6aca369f1bc8f6106b56·...·]-2">}</span><span·class="p">,</span><span·class="w"> |
| 162 | ·</span><span·class="p"·data-group-id=" | 162 | ·</span><span·class="p"·data-group-id="7638093564-3">{</span><span·class="ss">emp</span><span·class="p">,</span><span·class="s">"041231"</span><span·class="p">,</span><span·class="s">"Doe"</span><span·class="p">,</span><span·class="s">"John"</span><span·class="p">,[·...·truncated·by·diffoscope;·len:·128,·SHA:·0985019410442d43051baca8ca2f41a76b0eef5c4ff0b6609d6b4787bd7ba516·...·]-3">}</span><span·class="p">,</span><span·class="w"> |
| 163 | ·</span><span·class="p"·data-group-id=" | 163 | ·</span><span·class="p"·data-group-id="7638093564-4">{</span><span·class="ss">emp</span><span·class="p">,</span><span·class="s">"052341"</span><span·class="p">,</span><span·class="s">"Smith"</span><span·class="p">,</span><span·class="s">"John"</span><span·class="p"[·...·truncated·by·diffoscope;·len:·129,·SHA:·316503a52cc7bc8c5553e5ce72463a57b16fabe8cf006a1d53a02e910fe67f31·...·]-4">}</span><span·class="p">,</span><span·class="w"> |
| 164 | ·</span><span·class="p"·data-group-id=" | 164 | ·</span><span·class="p"·data-group-id="7638093564-5">{</span><span·class="ss">emp</span><span·class="p">,</span><span·class="s">"076324"</span><span·class="p">,</span><span·class="s">"Smith"</span><span·class="p">,</span><span·class="s">"Ella"</span><span·class="p"[·...·truncated·by·diffoscope;·len:·131,·SHA:·edea71251dc35c2c09b8827ef13344a44c8bed110d31b897dde2a848a9e15c94·...·]-5">}</span><span·class="p">,</span><span·class="w"> |
| 165 | ·</span><span·class="p"·data-group-id=" | 165 | ·</span><span·class="p"·data-group-id="7638093564-6">{</span><span·class="ss">emp</span><span·class="p">,</span><span·class="s">"122334"</span><span·class="p">,</span><span·class="s">"Weston"</span><span·class="p">,</span><span·class="s">"Anna"</span><span·class="p[·...·truncated·by·diffoscope;·len:·131,·SHA:·1aa72a7d112dd4d96e4b840f6a34b5dabd1fbffbb97a1662adc55595e86e6c9c·...·]-6">}</span><span·class="p">,</span><span·class="w"> |
| 166 | ·</span><span·class="p"·data-group-id=" | 166 | ·</span><span·class="p"·data-group-id="7638093564-7">{</span><span·class="ss">emp</span><span·class="p">,</span><span·class="s">"535216"</span><span·class="p">,</span><span·class="s">"Chalker"</span><span·class="p">,</span><span·class="s">"Samuel"</span><span·class[·...·truncated·by·diffoscope;·len:·133,·SHA:·c4c08198fc535508aa629f2782225ed3f85d6df1d92372e3e812f05b3e16706f·...·]-7">}</span><span·class="p">,</span><span·class="w"> |
| 167 | ·</span><span·class="p"·data-group-id=" | 167 | ·</span><span·class="p"·data-group-id="7638093564-8">{</span><span·class="ss">emp</span><span·class="p">,</span><span·class="s">"789789"</span><span·class="p">,</span><span·class="s">"Harrysson"</span><span·class="p">,</span><span·class="s">"Joe"</span><span·class=[·...·truncated·by·diffoscope;·len:·132,·SHA:·4dcc1f6679e6dcea0d1e7ff8c45c38cba4892fe6c837aff10fd4f9614c0783c3·...·]-8">}</span><span·class="p">,</span><span·class="w"> |
| 168 | ·</span><span·class="p"·data-group-id=" | 168 | ·</span><span·class="p"·data-group-id="7638093564-9">{</span><span·class="ss">emp</span><span·class="p">,</span><span·class="s">"963721"</span><span·class="p">,</span><span·class="s">"Scott"</span><span·class="p">,</span><span·class="s">"Juliana"</span><span·class=[·...·truncated·by·diffoscope;·len:·132,·SHA:·52e0812e1d5d0537765aa5da6176cb188f055d15c9c9e201020d63534ae7d825·...·]-9">}</span><span·class="p">,</span><span·class="w"> |
| 169 | ·</span><span·class="p"·data-group-id=" | 169 | ·</span><span·class="p"·data-group-id="7638093564-10">{</span><span·class="ss">emp</span><span·class="p">,</span><span·class="s">"989891"</span><span·class="p">,</span><span·class="s">"Brown"</span><span·class="p">,</span><span·class="s">"Gabriel"</span><span·class[·...·truncated·by·diffoscope;·len:·188,·SHA:·605e6c1794e478ec749c684592a75297b0337db4a6933d0f52f45f84c7f09a4a·...·]-1">]</span></code></pre><p>Assuming·that·we·want·the·employee·numbers·of·everyone·in·the·sales·department, |
| 170 | there·are·several·ways.</p><p><a·href="ets.html#match/2"><code·class="inline">ets:match/2</code></a>·can·be·used:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">match</span><span·class="p"·data-group-id="4 | 170 | there·are·several·ways.</p><p><a·href="ets.html#match/2"><code·class="inline">ets:match/2</code></a>·can·be·used:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">match</span><span·class="p"·data-group-id="4061709815-1">(</span><span·class="ss">emp_tab</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4061709815-2">{</span><span·class="ss">'_'</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">[·...·truncated·by·diffoscope;·len:·436,·SHA:·83396af04d4d683bd3a3290e8b298abb4891563a963c61c895f2f0a1ffc60711·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 171 | </span><span·class="p"·data-group-id="4 | 171 | </span><span·class="p"·data-group-id="4061709815-3">[</span><span·class="p"·data-group-id="4061709815-4">[</span><span·class="s">"011103"</span><span·class="p"·data-group-id="4061709815-4">]</span><span·class="p">,</span><span·class="p"·data-group-id="4061709815-5">[</span><span·class[·...·truncated·by·diffoscope;·len:·124,·SHA:·ab99e7f050507be10eeec6532c74cf985f6c0aa2f0ad7a0e016002bea0df79c1·...·]-3">]</span></code></pre><p><a·href="ets.html#match/2"><code·class="inline">ets:match/2</code></a>·uses·a·simpler·type·of·match·specification,·but·it·is·still |
| 172 | unreadable,·and·one·has·little·control·over·the·returned·result.·It·is·always·a | 172 | unreadable,·and·one·has·little·control·over·the·returned·result.·It·is·always·a |
| 173 | list·of·lists.</p><p><a·href="ets.html#foldl/3"><code·class="inline">ets:foldl/3</code></a>·or·<a·href="ets.html#foldr/3"><code·class="inline">ets:foldr/3</code></a>·can·be·used·to·avoid·the·nested·lists:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">foldr</span><span·class="p"·data-group-id="298 | 173 | list·of·lists.</p><p><a·href="ets.html#foldl/3"><code·class="inline">ets:foldl/3</code></a>·or·<a·href="ets.html#foldr/3"><code·class="inline">ets:foldr/3</code></a>·can·be·used·to·avoid·the·nested·lists:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">foldr</span><span·class="p"·data-group-id="2989983912-1">(</span><span·class="nf">fun</span><span·class="p"·data-group-id="2989983912-2">(</span><span·class="o">#</span><span·class="ss">emp</span><span·class="p"·data-group-id="2989983912-3">{</span><span·class="ss">empno</span><span·class="w">·</span>[·...·truncated·by·diffoscope;·len:·697,·SHA:·5a2f91f11da627fcee6301ecbee670dc9a901f9c21b7685d0452f892aa8fe085·...·]-4">]</span><span·class="p">;</span><span·class="w"> |
| 174 | ·············</span><span·class="p"·data-group-id="298 | 174 | ·············</span><span·class="p"·data-group-id="2989983912-5">(</span><span·class="p">_</span><span·class="p">,</span><span·class="n">Acc</span><span·class="p"·data-group-id="2989983912-5">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">Acc</span><span·class="w"> |
| 175 | ··········</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> | 175 | ··········</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> |
| 176 | ··········</span><span·class="p"·data-group-id="298 | 176 | ··········</span><span·class="p"·data-group-id="2989983912-6">[</span><span·class="p"·data-group-id="2989983912-6">]</span><span·class="p">,</span><span·class="w"> |
| 177 | ··········</span><span·class="ss">emp_tab</span><span·class="p"·data-group-id="298 | 177 | ··········</span><span·class="ss">emp_tab</span><span·class="p"·data-group-id="2989983912-1">)</span><span·class="p">.</span></code></pre><p>The·result·is·<code·class="inline">["011103","076324"]</code>.·The·fun·is·straightforward,·so·the·only |
| 178 | problem·is·that·all·the·data·from·the·table·must·be·transferred·from·the·table | 178 | problem·is·that·all·the·data·from·the·table·must·be·transferred·from·the·table |
| 179 | to·the·calling·process·for·filtering.·That·is·inefficient·compared·to·the | 179 | to·the·calling·process·for·filtering.·That·is·inefficient·compared·to·the |
| 180 | <a·href="ets.html#match/2"><code·class="inline">ets:match/2</code></a>·call·where·the·filtering·can·be·done·"inside"·the·emulator·and | 180 | <a·href="ets.html#match/2"><code·class="inline">ets:match/2</code></a>·call·where·the·filtering·can·be·done·"inside"·the·emulator·and |
| 181 | only·the·result·is·transferred·to·the·process.</p><p>Consider·a·"pure"·<a·href="ets.html#select/2"><code·class="inline">ets:select/2</code></a>·call·that·does·what·<code·class="inline">ets:foldr</code>·does:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">select</span><span·class="p"·data-group-id=" | 181 | only·the·result·is·transferred·to·the·process.</p><p>Consider·a·"pure"·<a·href="ets.html#select/2"><code·class="inline">ets:select/2</code></a>·call·that·does·what·<code·class="inline">ets:foldr</code>·does:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">select</span><span·class="p"·data-group-id="3247882392-1">(</span><span·class="ss">emp_tab</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3247882392-2">[</span><span·class="p"·data-group-id="3247882392-3">{</span><span·class="o">#</span><span·class="ss">emp</spa[·...·truncated·by·diffoscope;·len:·996,·SHA:·f02ff7f52870f3f60a00e5e4ba7c482b30c14e6285ce22eab00aeeb2ee5a598e·...·]-1">)</span><span·class="p">.</span></code></pre><p>Although·the·record·syntax·is·used,·it·is·still·hard·to·read·and·even·harder·to |
| 182 | write.·The·first·element·of·the·tuple, | 182 | write.·The·first·element·of·the·tuple, |
| 183 | <code·class="inline">#emp{empno·=·'$1',·dept·=·sales,·_='_'}</code>,·tells·what·to·match.·Elements·not | 183 | <code·class="inline">#emp{empno·=·'$1',·dept·=·sales,·_='_'}</code>,·tells·what·to·match.·Elements·not |
| 184 | matching·this·are·not·returned,·as·in·the·<a·href="ets.html#match/2"><code·class="inline">ets:match/2</code></a>·example.·The·second | 184 | matching·this·are·not·returned,·as·in·the·<a·href="ets.html#match/2"><code·class="inline">ets:match/2</code></a>·example.·The·second |
| 185 | element,·the·empty·list,·is·a·list·of·guard·expressions,·which·we·do·not·need. | 185 | element,·the·empty·list,·is·a·list·of·guard·expressions,·which·we·do·not·need. |
| 186 | The·third·element·is·the·list·of·expressions·constructing·the·return·value·(in | 186 | The·third·element·is·the·list·of·expressions·constructing·the·return·value·(in |
| 187 | ETS·this·is·almost·always·a·list·containing·one·single·term).·In·our·case·<code·class="inline">'$1'</code> | 187 | ETS·this·is·almost·always·a·list·containing·one·single·term).·In·our·case·<code·class="inline">'$1'</code> |
| 188 | is·bound·to·the·employee·number·in·the·head·(first·element·of·the·tuple),·and | 188 | is·bound·to·the·employee·number·in·the·head·(first·element·of·the·tuple),·and |
| 189 | hence·the·employee·number·is·returned.·The·result·is·<code·class="inline">["011103","076324"]</code>,·as | 189 | hence·the·employee·number·is·returned.·The·result·is·<code·class="inline">["011103","076324"]</code>,·as |
| 190 | in·the·<a·href="ets.html#foldr/3"><code·class="inline">ets:foldr/3</code></a>·example,·but·the·result·is·retrieved·much·more·efficiently | 190 | in·the·<a·href="ets.html#foldr/3"><code·class="inline">ets:foldr/3</code></a>·example,·but·the·result·is·retrieved·much·more·efficiently |
| 191 | in·terms·of·execution·speed·and·memory·consumption.</p><p>Using·<a·href="ets.html#fun2ms/1"><code·class="inline">ets:fun2ms/1</code></a>,·we·can·combine·the·ease·of·use·of·the·<a·href="ets.html#foldr/3"><code·class="inline">ets:foldr/3</code></a>·and | 191 | in·terms·of·execution·speed·and·memory·consumption.</p><p>Using·<a·href="ets.html#fun2ms/1"><code·class="inline">ets:fun2ms/1</code></a>,·we·can·combine·the·ease·of·use·of·the·<a·href="ets.html#foldr/3"><code·class="inline">ets:foldr/3</code></a>·and |
| 192 | the·efficiency·of·the·pure·<a·href="ets.html#select/2"><code·class="inline">ets:select/2</code></a>·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id=" | 192 | the·efficiency·of·the·pure·<a·href="ets.html#select/2"><code·class="inline">ets:select/2</code></a>·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id="7421617905-1">(</span><span·class="s">"stdlib/include/ms_transform.hrl"</span><span·class="p"·data-group-id="7421617905-1">)</span><span·class="p">.</span><span·class="w"> |
| 193 | </span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">select</span><span·class="p"·data-group-id=" | 193 | </span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">select</span><span·class="p"·data-group-id="7421617905-2">(</span><span·class="ss">emp_tab</span><span·class="p">,</span><span·class="w">·</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">fun2ms</span><span·class="p"·data-group-id="7421617905-3">(</span><span·class="w"> |
| 194 | ······················</span><span·class="nf">fun</span><span·class="p"·data-group-id=" | 194 | ······················</span><span·class="nf">fun</span><span·class="p"·data-group-id="7421617905-4">(</span><span·class="o">#</span><span·class="ss">emp</span><span·class="p"·data-group-id="7421617905-5">{</span><span·class="ss">empno</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">E</span><span[·...·truncated·by·diffoscope;·len:·266,·SHA:·324006199e68322b5e20856cb3bc0f89cbcebe9b950e9d1f84b4c37d585de3dc·...·]-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 195 | ······························</span><span·class="n">E</span><span·class="w"> | 195 | ······························</span><span·class="n">E</span><span·class="w"> |
| 196 | ······················</span><span·class="k">end</span><span·class="p"·data-group-id=" | 196 | ······················</span><span·class="k">end</span><span·class="p"·data-group-id="7421617905-3">)</span><span·class="p"·data-group-id="7421617905-2">)</span><span·class="p">.</span></code></pre><p>This·example·requires·no·special·knowledge·of·match·specifications·to |
| 197 | understand.·The·head·of·the·fun·matches·what·you·want·to·filter·out·and·the·body | 197 | understand.·The·head·of·the·fun·matches·what·you·want·to·filter·out·and·the·body |
| 198 | returns·what·you·want·returned.·As·long·as·the·fun·can·be·kept·within·the·limits | 198 | returns·what·you·want·returned.·As·long·as·the·fun·can·be·kept·within·the·limits |
| 199 | of·the·match·specifications,·there·is·no·need·to·transfer·all·table·data·to·the | 199 | of·the·match·specifications,·there·is·no·need·to·transfer·all·table·data·to·the |
| 200 | process·for·filtering·as·in·the·<a·href="ets.html#foldr/3"><code·class="inline">ets:foldr/3</code></a>·example.·It·is·easier·to·read·than | 200 | process·for·filtering·as·in·the·<a·href="ets.html#foldr/3"><code·class="inline">ets:foldr/3</code></a>·example.·It·is·easier·to·read·than |
| 201 | the·<a·href="ets.html#foldr/3"><code·class="inline">ets:foldr/3</code></a>·example,·as·the·select·call·in·itself·discards·anything·that | 201 | the·<a·href="ets.html#foldr/3"><code·class="inline">ets:foldr/3</code></a>·example,·as·the·select·call·in·itself·discards·anything·that |
| 202 | does·not·match,·while·the·fun·of·the·<a·href="ets.html#foldr/3"><code·class="inline">ets:foldr/3</code></a>·call·needs·to·handle·both·the | 202 | does·not·match,·while·the·fun·of·the·<a·href="ets.html#foldr/3"><code·class="inline">ets:foldr/3</code></a>·call·needs·to·handle·both·the |
| 203 | elements·matching·and·the·ones·not·matching.</p><p>In·the·<a·href="ets.html#fun2ms/1"><code·class="inline">ets:fun2ms/1</code></a>·example·above,·it·is·needed·to·include·<code·class="inline">ms_transform.hrl</code> | 203 | elements·matching·and·the·ones·not·matching.</p><p>In·the·<a·href="ets.html#fun2ms/1"><code·class="inline">ets:fun2ms/1</code></a>·example·above,·it·is·needed·to·include·<code·class="inline">ms_transform.hrl</code> |
| Offset 212, 90 lines modified | Offset 212, 90 lines modified | ||
| 212 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 212 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 213 | ··</a> | 213 | ··</a> |
| 214 | ··<span·class="text">Example·2</span> | 214 | ··<span·class="text">Example·2</span> |
| 215 | </h2> | 215 | </h2> |
| 216 | <p>Assume·that·we·want·to·get·all·the·employee·numbers·of·employees·hired·before | 216 | <p>Assume·that·we·want·to·get·all·the·employee·numbers·of·employees·hired·before |
| 217 | year·2000.·Using·<a·href="ets.html#match/2"><code·class="inline">ets:match/2</code></a>·is·not·an·alternative·here,·as·relational | 217 | year·2000.·Using·<a·href="ets.html#match/2"><code·class="inline">ets:match/2</code></a>·is·not·an·alternative·here,·as·relational |
| 218 | operators·cannot·be·expressed·there.·Once·again,·<a·href="ets.html#foldr/3"><code·class="inline">ets:foldr/3</code></a>·can·do·it | 218 | operators·cannot·be·expressed·there.·Once·again,·<a·href="ets.html#foldr/3"><code·class="inline">ets:foldr/3</code></a>·can·do·it |
| 219 | (slowly,·but·correct):</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">foldr</span><span·class="p"·data-group-id=" | 219 | (slowly,·but·correct):</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">foldr</span><span·class="p"·data-group-id="3840641198-1">(</span><span·class="nf">fun</span><span·class="p"·data-group-id="3840641198-2">(</span><span·class="o">#</span><span·class="ss">emp</span><span·class="p"·data-group-id="3840641198-3">{</span><span·class="ss">empno</span><span·class="w">·</sp[·...·truncated·by·diffoscope;·len:·900,·SHA:·adde3066de3275130427964df2578fd9fd2c3141e5678adf85a80decf940c7b3·...·]-4">]</span><span·class="p">;</span><span·class="w"> |
| 220 | ··················</span><span·class="p"·data-group-id=" | 220 | ··················</span><span·class="p"·data-group-id="3840641198-5">(</span><span·class="p">_</span><span·class="p">,</span><span·class="n">Acc</span><span·class="p"·data-group-id="3840641198-5">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">Acc</span><span·class="w"> |
| 221 | ··········</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> | 221 | ··········</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> |
| 222 | ··········</span><span·class="p"·data-group-id=" | 222 | ··········</span><span·class="p"·data-group-id="3840641198-6">[</span><span·class="p"·data-group-id="3840641198-6">]</span><span·class="p">,</span><span·class="w"> |
| 223 | ··········</span><span·class="ss">emp_tab</span><span·class="p"·data-group-id=" | 223 | ··········</span><span·class="ss">emp_tab</span><span·class="p"·data-group-id="3840641198-1">)</span><span·class="p">.</span></code></pre><p>The·result·is·<code·class="inline">["052341","076324","535216","789789","989891"]</code>,·as·expected.·The |
| 224 | equivalent·expression·using·a·handwritten·match·specification·would·look·like | 224 | equivalent·expression·using·a·handwritten·match·specification·would·look·like |
| 225 | this:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">select</span><span·class="p"·data-group-id=" | 225 | this:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">select</span><span·class="p"·data-group-id="9797441941-1">(</span><span·class="ss">emp_tab</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9797441941-2">[</span><span·class="p"·data-group-id="9797441941-3">{</span><span·class="o">#</span><span·class="ss">emp</spa[·...·truncated·by·diffoscope;·len:·551,·SHA:·aeb646fdf16ba1707f4bab1e3a3ddb2966827e83b3f779483473626de57e0501·...·]-4">}</span><span·class="p">,</span><span·class="w"> |
| 226 | ·····················</span><span·class="p"·data-group-id=" | 226 | ·····················</span><span·class="p"·data-group-id="9797441941-5">[</span><span·class="p"·data-group-id="9797441941-6">{</span><span·class="ss">'<'</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">'$2'</span><span·class="p">,</span><span·class="w">·</span><span·class[·...·truncated·by·diffoscope;·len:·111,·SHA:·323fd42171705530d44b385f339491a3a511b8f57e5829f56200b793c0e6192a·...·]-5">]</span><span·class="p">,</span><span·class="w"> |
| 227 | ·····················</span><span·class="p"·data-group-id=" | 227 | ·····················</span><span·class="p"·data-group-id="9797441941-7">[</span><span·class="ss">'$1'</span><span·class="p"·data-group-id="9797441941-7">]</span><span·class="p"·data-group-id="9797441941-3">}</span><span·class="p"·data-group-id="9797441941-2">]</span><span·class="p"·data-group-id="97974419[·...·truncated·by·diffoscope;·len:·2,·SHA:·3d914f9348c9cc0ff8a79716700b9fcd4d2f3e711608004eb8f138bcba7f14d9·...·]-1">)</span><span·class="p">.</span></code></pre><p>This·gives·the·same·result.·<code·class="inline">[{'<',·'$2',·2000}]</code>·is·in·the·guard·part·and |
| 228 | therefore·discards·anything·that·does·not·have·an·<code·class="inline">empyear</code>·(bound·to·<code·class="inline">'$2'</code>·in | 228 | therefore·discards·anything·that·does·not·have·an·<code·class="inline">empyear</code>·(bound·to·<code·class="inline">'$2'</code>·in |
| 229 | the·head)·less·than·2000,·as·the·guard·in·the·<code·class="inline">foldr/3</code>·example.</p><p>We·write·it·using·<a·href="ets.html#fun2ms/1"><code·class="inline">ets:fun2ms/1</code></a>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id=" | 229 | the·head)·less·than·2000,·as·the·guard·in·the·<code·class="inline">foldr/3</code>·example.</p><p>We·write·it·using·<a·href="ets.html#fun2ms/1"><code·class="inline">ets:fun2ms/1</code></a>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id="5312240835-1">(</span><span·class="s">"stdlib/include/ms_transform.hrl"</span><span·class="p"·data-group-id="5312240835-1">)</span><span·class="p">.</span><span·class="w"> |
| 230 | </span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">select</span><span·class="p"·data-group-id=" | 230 | </span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">select</span><span·class="p"·data-group-id="5312240835-2">(</span><span·class="ss">emp_tab</span><span·class="p">,</span><span·class="w">·</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">fun2ms</span><span·class="p"·data-group-id="5312240835-3">(</span><span·class="w"> |
| 231 | ······················</span><span·class="nf">fun</span><span·class="p"·data-group-id=" | 231 | ······················</span><span·class="nf">fun</span><span·class="p"·data-group-id="5312240835-4">(</span><span·class="o">#</span><span·class="ss">emp</span><span·class="p"·data-group-id="5312240835-5">{</span><span·class="ss">empno</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">E</span><span[·...·truncated·by·diffoscope;·len:·264,·SHA:·346e5ac107a88b5a825c39c8cf738eda74fd5c1c1ff97f07276b422047e6cfbe·...·]-4">)</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><span·class="n">Y</span><span·class="w">·</span><span·class="o"><</span><span·class="w">·</span><span·class="mi">2000</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 232 | ···························</span><span·class="n">E</span><span·class="w"> | 232 | ···························</span><span·class="n">E</span><span·class="w"> |
| 233 | ······················</span><span·class="k">end</span><span·class="p"·data-group-id=" | 233 | ······················</span><span·class="k">end</span><span·class="p"·data-group-id="5312240835-3">)</span><span·class="p"·data-group-id="5312240835-2">)</span><span·class="p">.</span></code></pre><h2·id="module-example-3"·class="section-heading"> |
| 234 | ··<a·href="#module-example-3"·class="hover-link"> | 234 | ··<a·href="#module-example-3"·class="hover-link"> |
| 235 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 235 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 236 | ··</a> | 236 | ··</a> |
| 237 | ··<span·class="text">Example·3</span> | 237 | ··<span·class="text">Example·3</span> |
| 238 | </h2> | 238 | </h2> |
| 239 | <p>Assume·that·we·want·the·whole·object·matching·instead·of·only·one·element.·One | 239 | <p>Assume·that·we·want·the·whole·object·matching·instead·of·only·one·element.·One |
| 240 | alternative·is·to·assign·a·variable·to·every·part·of·the·record·and·build·it·up | 240 | alternative·is·to·assign·a·variable·to·every·part·of·the·record·and·build·it·up |
| 241 | once·again·in·the·body·of·the·fun,·but·the·following·is·easier:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">select</span><span·class="p"·data-group-id=" | 241 | once·again·in·the·body·of·the·fun,·but·the·following·is·easier:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">select</span><span·class="p"·data-group-id="9029652956-1">(</span><span·class="ss">emp_tab</span><span·class="p">,</span><span·class="w">·</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">fun2ms</span><span·class="p"·data-group-id="9029652956-2">(</span><span·class="w"> |
| 242 | ······················</span><span·class="nf">fun</span><span·class="p"·data-group-id=" | 242 | ······················</span><span·class="nf">fun</span><span·class="p"·data-group-id="9029652956-3">(</span><span·class="n">Obj</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">emp</span><span·class="p"·data-group-id="9029652956-4">{</span><span·class="ss">empno</span><sp[·...·truncated·by·diffoscope;·len:·362,·SHA:·1a185aa2f00eeef925213d949f41a1d086432cbdb2304e4fd7f7ac87ac6aef82·...·]-3">)</span><span·class="w"> |
| 243 | ·························</span><span·class="k">when</span><span·class="w">·</span><span·class="n">Y</span><span·class="w">·</span><span·class="o"><</span><span·class="w">·</span><span·class="mi">2000</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 243 | ·························</span><span·class="k">when</span><span·class="w">·</span><span·class="n">Y</span><span·class="w">·</span><span·class="o"><</span><span·class="w">·</span><span·class="mi">2000</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 244 | ······························</span><span·class="n">Obj</span><span·class="w"> | 244 | ······························</span><span·class="n">Obj</span><span·class="w"> |
| 245 | ······················</span><span·class="k">end</span><span·class="p"·data-group-id=" | 245 | ······················</span><span·class="k">end</span><span·class="p"·data-group-id="9029652956-2">)</span><span·class="p"·data-group-id="9029652956-1">)</span><span·class="p">.</span></code></pre><p>As·in·ordinary·Erlang·matching,·you·can·bind·a·variable·to·the·whole·matched |
| 246 | object·using·a·"match·inside·the·match",·that·is,·a·<code·class="inline">=</code>.·Unfortunately·in·funs | 246 | object·using·a·"match·inside·the·match",·that·is,·a·<code·class="inline">=</code>.·Unfortunately·in·funs |
| 247 | translated·to·match·specifications,·it·is·allowed·only·at·the·"top-level",·that | 247 | translated·to·match·specifications,·it·is·allowed·only·at·the·"top-level",·that |
| 248 | is,·matching·the·<em>whole</em>·object·arriving·to·be·matched·into·a·separate·variable. | 248 | is,·matching·the·<em>whole</em>·object·arriving·to·be·matched·into·a·separate·variable. |
| 249 | If·you·are·used·to·writing·match·specifications·by·hand,·we·mention·that | 249 | If·you·are·used·to·writing·match·specifications·by·hand,·we·mention·that |
| 250 | variable·A·is·simply·translated·into·'$_'.·Alternatively,·pseudo·function | 250 | variable·A·is·simply·translated·into·'$_'.·Alternatively,·pseudo·function |
| 251 | <code·class="inline">object/0</code>·also·returns·the·whole·matched·object,·see·section | 251 | <code·class="inline">object/0</code>·also·returns·the·whole·matched·object,·see·section |
| 252 | <a·href="ms_transform.html#warnings_and_restrictions">Warnings·and·Restrictions</a>.</p><h2·id="module-example-4"·class="section-heading"> | 252 | <a·href="ms_transform.html#warnings_and_restrictions">Warnings·and·Restrictions</a>.</p><h2·id="module-example-4"·class="section-heading"> |
| 253 | ··<a·href="#module-example-4"·class="hover-link"> | 253 | ··<a·href="#module-example-4"·class="hover-link"> |
| 254 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 254 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 255 | ··</a> | 255 | ··</a> |
| 256 | ··<span·class="text">Example·4</span> | 256 | ··<span·class="text">Example·4</span> |
| 257 | </h2> | 257 | </h2> |
| 258 | <p>This·example·concerns·the·body·of·the·fun.·Assume·that·all·employee·numbers | 258 | <p>This·example·concerns·the·body·of·the·fun.·Assume·that·all·employee·numbers |
| 259 | beginning·with·zero·(<code·class="inline">0</code>)·must·be·changed·to·begin·with·one·(<code·class="inline">1</code>)·instead,·and | 259 | beginning·with·zero·(<code·class="inline">0</code>)·must·be·changed·to·begin·with·one·(<code·class="inline">1</code>)·instead,·and |
| 260 | that·we·want·to·create·the·list·<code·class="inline">[{<Old·empno>,<New·empno>}]</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">select</span><span·class="p"·data-group-id=" | 260 | that·we·want·to·create·the·list·<code·class="inline">[{<Old·empno>,<New·empno>}]</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">select</span><span·class="p"·data-group-id="7650367286-1">(</span><span·class="ss">emp_tab</span><span·class="p">,</span><span·class="w">·</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">fun2ms</span><span·class="p"·data-group-id="7650367286-2">(</span><span·class="w"> |
| 261 | ······················</span><span·class="nf">fun</span><span·class="p"·data-group-id=" | 261 | ······················</span><span·class="nf">fun</span><span·class="p"·data-group-id="7650367286-3">(</span><span·class="o">#</span><span·class="ss">emp</span><span·class="p"·data-group-id="7650367286-4">{</span><span·class="ss">empno</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id[·...·truncated·by·diffoscope;·len:·320,·SHA:·37df5c20e8db97849490cf44c362f210eaca7a85a00b106c9ea659aae210aeb2·...·]-3">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 262 | ······························</span><span·class="p"·data-group-id=" | 262 | ······························</span><span·class="p"·data-group-id="7650367286-6">{</span><span·class="p"·data-group-id="7650367286-7">[</span><span·class="sc">$0</span><span·class="p">|</span><span·class="n">Rest</span><span·class="p"·data-group-id="7650367286-7">]</span><span·class="p">,</span><span·class="p"·data-group-[·...·truncated·by·diffoscope;·len:·197,·SHA:·d5bf2df39a1acaf911b89ae231d559178020755feb5eb6beab8ae2f110e22e99·...·]-6">}</span><span·class="w"> |
| 263 | ······················</span><span·class="k">end</span><span·class="p"·data-group-id=" | 263 | ······················</span><span·class="k">end</span><span·class="p"·data-group-id="7650367286-2">)</span><span·class="p"·data-group-id="7650367286-1">)</span><span·class="p">.</span></code></pre><p>This·query·hits·the·feature·of·partially·bound·keys·in·table·type·<code·class="inline">ordered_set</code>, |
| 264 | so·that·not·the·whole·table·needs·to·be·searched,·only·the·part·containing·keys | 264 | so·that·not·the·whole·table·needs·to·be·searched,·only·the·part·containing·keys |
| 265 | beginning·with·<code·class="inline">0</code>·is·looked·into.</p><h2·id="module-example-5"·class="section-heading"> | 265 | beginning·with·<code·class="inline">0</code>·is·looked·into.</p><h2·id="module-example-5"·class="section-heading"> |
| 266 | ··<a·href="#module-example-5"·class="hover-link"> | 266 | ··<a·href="#module-example-5"·class="hover-link"> |
| 267 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 267 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 268 | ··</a> | 268 | ··</a> |
| 269 | ··<span·class="text">Example·5</span> | 269 | ··<span·class="text">Example·5</span> |
| 270 | </h2> | 270 | </h2> |
| 271 | <p>The·fun·can·have·many·clauses.·Assume·that·we·want·to·do·the·following:</p><ul><li>If·an·employee·started·before·1997,·return·the·tuple | 271 | <p>The·fun·can·have·many·clauses.·Assume·that·we·want·to·do·the·following:</p><ul><li>If·an·employee·started·before·1997,·return·the·tuple |
| 272 | <code·class="inline">{inventory,·<employee·number>}</code>.</li><li>If·an·employee·started·1997·or·later,·but·before·2001,·return | 272 | <code·class="inline">{inventory,·<employee·number>}</code>.</li><li>If·an·employee·started·1997·or·later,·but·before·2001,·return |
| 273 | <code·class="inline">{rookie,·<employee·number>}</code>.</li><li>For·all·other·employees,·return·<code·class="inline">{newbie,·<employee·number>}</code>,·except·for | 273 | <code·class="inline">{rookie,·<employee·number>}</code>.</li><li>For·all·other·employees,·return·<code·class="inline">{newbie,·<employee·number>}</code>,·except·for |
| 274 | those·named·<code·class="inline">Smith</code>·as·they·would·be·affronted·by·anything·other·than·the·tag | 274 | those·named·<code·class="inline">Smith</code>·as·they·would·be·affronted·by·anything·other·than·the·tag |
| 275 | <code·class="inline">guru</code>·and·that·is·also·what·is·returned·for·their·numbers: | 275 | <code·class="inline">guru</code>·and·that·is·also·what·is·returned·for·their·numbers: |
| 276 | <code·class="inline">{guru,·<employee·number>}</code>.</li></ul><p>This·is·accomplished·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">select</span><span·class="p"·data-group-id="0 | 276 | <code·class="inline">{guru,·<employee·number>}</code>.</li></ul><p>This·is·accomplished·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">select</span><span·class="p"·data-group-id="7507016970-1">(</span><span·class="ss">emp_tab</span><span·class="p">,</span><span·class="w">·</span><span·class="nc">ets</span><span·class="p">:</span><span·class="nf">fun2ms</span><span·class="p"·data-group-id="7507016970-2">(</span><span·class="w"> |
| 277 | ······················</span><span·class="nf">fun</span><span·class="p"·data-group-id="0 | 277 | ······················</span><span·class="nf">fun</span><span·class="p"·data-group-id="7507016970-3">(</span><span·class="o">#</span><span·class="ss">emp</span><span·class="p"·data-group-id="7507016970-4">{</span><span·class="ss">empno</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">E</span><span[·...·truncated·by·diffoscope;·len:·304,·SHA:·fc6032b0bf0f8829839d9611b4d7493585db5faa4f1794f19ff6a928c8ae0983·...·]-3">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 278 | ······························</span><span·class="p"·data-group-id="0 | 278 | ······························</span><span·class="p"·data-group-id="7507016970-5">{</span><span·class="ss">guru</span><span·class="p">,</span><span·class="n">E</span><span·class="p"·data-group-id="7507016970-5">}</span><span·class="p">;</span><span·class="w"> |
| 279 | ·························</span><span·class="p"·data-group-id="0 | 279 | ·························</span><span·class="p"·data-group-id="7507016970-6">(</span><span·class="o">#</span><span·class="ss">emp</span><span·class="p"·data-group-id="7507016970-7">{</span><span·class="ss">empno</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">E</span><span[·...·truncated·by·diffoscope;·len:·264,·SHA:·75484213ec403481a48fc6a7a1b5d174ef4fe3d82bc108aaf4b0f807fdfc9338·...·]-6">)</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><span·class="n">Y</span><span·class="w">·</span><span·class="o"><</span><span·class="w">·</span><span·class="mi">1997</span><span·class="w">··</span><span·class="p">-></span><span·class="w"> |
| 280 | ······························</span><span·class="p"·data-group-id="0 | 280 | ······························</span><span·class="p"·data-group-id="7507016970-8">{</span><span·class="ss">inventory</span><span·class="p">,</span><span·class="w">·</span><span·class="n">E</span><span·class="p"·data-group-id="7507016970-8">}</span><span·class="p">;</span><span·class="w"> |
| 281 | ·························</span><span·class="p"·data-group-id="0 | 281 | ·························</span><span·class="p"·data-group-id="7507016970-9">(</span><span·class="o">#</span><span·class="ss">emp</span><span·class="p"·data-group-id="7507016970-10">{</span><span·class="ss">empno</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">E</span><spa[·...·truncated·by·diffoscope;·len:·266,·SHA:·f01e60fea9e92e1d196d7b5f5eb6a7177e68b0e318481be7a187b197a1a5bced·...·]-9">)</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><span·class="n">Y</span><span·class="w">·</span><span·class="o">></span><span·class="w">·</span><span·class="mi">2001</span><span·class="w">··</span><span·class="p">-></span><span·class="w"> |
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| 133 | </h2> | 133 | </h2> |
| 134 | <h3·id="fixed-bugs-and-malfunctions"·class="section-heading"> | 134 | <h3·id="fixed-bugs-and-malfunctions"·class="section-heading"> |
| 135 | ··<a·href="#fixed-bugs-and-malfunctions"·class="hover-link"> | 135 | ··<a·href="#fixed-bugs-and-malfunctions"·class="hover-link"> |
| 136 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 136 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 137 | ··</a> | 137 | ··</a> |
| 138 | ··<span·class="text">Fixed·Bugs·and·Malfunctions</span> | 138 | ··<span·class="text">Fixed·Bugs·and·Malfunctions</span> |
| 139 | </h3> | 139 | </h3> |
| 140 | <ul><li><p>Shell·help·now·orders·the·commands·in·alphabetical·order.</p><p>Own·Id:·OTP-19161·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8573"·title="">PR-8573</a></p></li><li><p><a·href="proc_lib.html#stop/3"><code·class="inline">proc_lib:stop/1,3</code></a>·(and·in·extension·<a·href="gen_server.html#stop/3"><code·class="inline">gen_server:stop/3</code></a>,·<a·href="gen_statem.html#stop/3"><code·class="inline">gen_statem:stop/3</code></a>·and·so·on)·have·been·updated·to·not·throw·an·error·if·the·process·to·be·stopped·exits·with·the·same·reason·as·given·to·<a·href="proc_lib.html#stop/3"><code·class="inline">proc_lib:stop/3</code></a>.</p><p><strong><em>·POTENTIAL·INCOMPATIBILITY·</em></strong></p><p>Own·Id:·OTP-19233·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8772"·title="">PR-8772</a></p></li><li><p>The·size·of·an·atom·in·the·Erlang·source·code·was·limited·to·255·bytes·in·previous·releases,·meaning·that·an·atom·containing·only·emojis·could·contain·only·63·emojis.</p><p>While·atoms·are·still·only·allowed·to·contain·255·characters,·the·number·of·bytes·is·no·longer·limited.</p><p>External·tools·that·parse·the·<code·class="inline">AtU8</code>·chunk·of·a·BEAM·file·directly·need·to·be·updated.·Tools·that·use·<a·href="beam_lib.html#chunks/2"><code·class="inline">beam_lib:chunks(Beam,·[atoms])</code></a>·to·read·the·atom·table·will·continue·to·work.</p><p><strong><em>·POTENTIAL·INCOMPATIBILITY·</em></strong></p><p>Own·Id:·OTP-19285·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8913"·title="">PR-8913</a></p></li><li><p><a·href="argparse.html#help/1"><code·class="inline">argparse:help/1</code></a>·now·accepts·<a·href="unicode.html#t:chardata/0"><code·class="inline">unicode:chardata/0</code></a>.</p><p>Own·Id:·OTP-19303·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8932"·title="">PR-8932</a></p></li><li><p>The·literals·chunk·in·BEAM·is·no·longer·compressed,·resulting·in·slightly·smaller·BEAM·files·when·a·BEAM·file·is·stripped·using·<a·href="beam_lib.html#strip_files/1"><code·class="inline">beam_lib:strip_files/1</code></a>.</p><p>This·is·a·potential·incompatibility·for·tools·that·read·and·interpret·the·contents·of·the·literal·chunk.·One·way·to·update·such·tools·to·work·with·the·new·format·is·to·retrieve·the·chunk·using·<a·href="beam_lib.html#chunks/2"><code·class="inline">beam_lib:chunks(Beam,·[literals])</code></a>.</p><p><strong><em>·POTENTIAL·INCOMPATIBILITY·</em></strong></p><p>Own·Id:·OTP-19323·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/8967"·title="">GH-8967</a>,·<a·href="https://github.com/erlang/otp/pull/8988"·title="">PR-8988</a></p></li><li><p>The·previous·<a·href="digraph_utils.html#preorder/1"><code·class="inline">digraph_utils:preorder/1</code></a>·and·<a·href="digraph_utils.html#postorder/1"><code·class="inline">digraph_utils:postorder/1</code></a>·did·not·start·the·traversal·from·root·nodes.·This·fix·makes·both·traversals·only·start·or·restart·from·a·root·node·in·one·of·the·components,·or·an·arbitrary·node·if·no·root·node·can·be·visited.</p><p>Own·Id:·OTP-19393·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9171"·title="">PR-9171</a></p></li><li><p>Auto-completion·in·the·shell·is·now·significantly·faster·for·function·parameters·that·uses·complex·custom·types.</p><p>Own·Id:·OTP-19413·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9271"·title="">PR-9271</a></p></li><li><p>Stringfying·a·non-latin1·atom·will·now·produce·a·readable·string·instead·of·encoding·each·character·using·<code·class="inline">\x{...}</code>·escape·sequences.·Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">define</span><span·class="p"·data-group-id="53 | 140 | <ul><li><p>Shell·help·now·orders·the·commands·in·alphabetical·order.</p><p>Own·Id:·OTP-19161·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8573"·title="">PR-8573</a></p></li><li><p><a·href="proc_lib.html#stop/3"><code·class="inline">proc_lib:stop/1,3</code></a>·(and·in·extension·<a·href="gen_server.html#stop/3"><code·class="inline">gen_server:stop/3</code></a>,·<a·href="gen_statem.html#stop/3"><code·class="inline">gen_statem:stop/3</code></a>·and·so·on)·have·been·updated·to·not·throw·an·error·if·the·process·to·be·stopped·exits·with·the·same·reason·as·given·to·<a·href="proc_lib.html#stop/3"><code·class="inline">proc_lib:stop/3</code></a>.</p><p><strong><em>·POTENTIAL·INCOMPATIBILITY·</em></strong></p><p>Own·Id:·OTP-19233·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8772"·title="">PR-8772</a></p></li><li><p>The·size·of·an·atom·in·the·Erlang·source·code·was·limited·to·255·bytes·in·previous·releases,·meaning·that·an·atom·containing·only·emojis·could·contain·only·63·emojis.</p><p>While·atoms·are·still·only·allowed·to·contain·255·characters,·the·number·of·bytes·is·no·longer·limited.</p><p>External·tools·that·parse·the·<code·class="inline">AtU8</code>·chunk·of·a·BEAM·file·directly·need·to·be·updated.·Tools·that·use·<a·href="beam_lib.html#chunks/2"><code·class="inline">beam_lib:chunks(Beam,·[atoms])</code></a>·to·read·the·atom·table·will·continue·to·work.</p><p><strong><em>·POTENTIAL·INCOMPATIBILITY·</em></strong></p><p>Own·Id:·OTP-19285·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8913"·title="">PR-8913</a></p></li><li><p><a·href="argparse.html#help/1"><code·class="inline">argparse:help/1</code></a>·now·accepts·<a·href="unicode.html#t:chardata/0"><code·class="inline">unicode:chardata/0</code></a>.</p><p>Own·Id:·OTP-19303·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8932"·title="">PR-8932</a></p></li><li><p>The·literals·chunk·in·BEAM·is·no·longer·compressed,·resulting·in·slightly·smaller·BEAM·files·when·a·BEAM·file·is·stripped·using·<a·href="beam_lib.html#strip_files/1"><code·class="inline">beam_lib:strip_files/1</code></a>.</p><p>This·is·a·potential·incompatibility·for·tools·that·read·and·interpret·the·contents·of·the·literal·chunk.·One·way·to·update·such·tools·to·work·with·the·new·format·is·to·retrieve·the·chunk·using·<a·href="beam_lib.html#chunks/2"><code·class="inline">beam_lib:chunks(Beam,·[literals])</code></a>.</p><p><strong><em>·POTENTIAL·INCOMPATIBILITY·</em></strong></p><p>Own·Id:·OTP-19323·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/8967"·title="">GH-8967</a>,·<a·href="https://github.com/erlang/otp/pull/8988"·title="">PR-8988</a></p></li><li><p>The·previous·<a·href="digraph_utils.html#preorder/1"><code·class="inline">digraph_utils:preorder/1</code></a>·and·<a·href="digraph_utils.html#postorder/1"><code·class="inline">digraph_utils:postorder/1</code></a>·did·not·start·the·traversal·from·root·nodes.·This·fix·makes·both·traversals·only·start·or·restart·from·a·root·node·in·one·of·the·components,·or·an·arbitrary·node·if·no·root·node·can·be·visited.</p><p>Own·Id:·OTP-19393·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9171"·title="">PR-9171</a></p></li><li><p>Auto-completion·in·the·shell·is·now·significantly·faster·for·function·parameters·that·uses·complex·custom·types.</p><p>Own·Id:·OTP-19413·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9271"·title="">PR-9271</a></p></li><li><p>Stringfying·a·non-latin1·atom·will·now·produce·a·readable·string·instead·of·encoding·each·character·using·<code·class="inline">\x{...}</code>·escape·sequences.·Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">define</span><span·class="p"·data-group-id="7539942989-1">(</span><span·class="n">S</span><span·class="p"·data-group-id="7539942989-2">(</span><span·class="n">T</span><span·class="p"·data-group-id="7539942989-2">)</span><span·class="p">,</span><span·class="w">·</span><span·class="o">?</span><span·cl[·...·truncated·by·diffoscope;·len:·81,·SHA:·aed90b8b3d146f51c9949caaf7d24d57f50d37aa52551505544f2518ed90f840·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 141 | </span><span·class="nf">atom</span><span·class="p"·data-group-id="53 | 141 | </span><span·class="nf">atom</span><span·class="p"·data-group-id="7539942989-3">(</span><span·class="p"·data-group-id="7539942989-3">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 142 | ····</span><span·class="o">?</span><span·class="n">S</span><span·class="p"·data-group-id="53 | 142 | ····</span><span·class="o">?</span><span·class="n">S</span><span·class="p"·data-group-id="7539942989-4">(</span><span·class="ss">'атом'</span><span·class="p"·data-group-id="7539942989-4">)</span><span·class="p">.</span></code></pre><p>The·<code·class="inline">atom/0</code>·function·now·returns·<code·class="inline">"'атом'"</code>·instead·of·<code·class="inline">"'\\x{430}\\x{442}\\x{43E}\\x{43C}'"</code>.</p><p>Own·Id:·OTP-19421·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/9173"·title="">GH-9173</a>,·<a·href="https://github.com/erlang/otp/pull/9276"·title="">PR-9276</a></p></li><li><p>A·few·minor·issues·were·corrected·in·<code·class="inline">m:syntax_tools</code>,·as·well·in·the·<a·href="erl_anno.html"><code·class="inline">erl_anno</code></a>·module.</p><p>Own·Id:·OTP-19422·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9253"·title="">PR-9253</a></p></li><li><p><a·href="dets.html"><code·class="inline">dets</code></a>·could·print·error·messages·to·standard·output·when·repairing·DETS·files.·This·has·been·changed·to·send·the·messages·to·<a·href="../../../../lib/kernel-10.3/doc/html/logger.html"><code·class="inline">logger</code></a>.</p><p><code·class="inline">ets:fun2ms</code>·would·print·an·error·message·to·standard·output·as·well·as·returning·an·error·tuple.·The·printing·of·the·message·has·been·removed.</p><p>Own·Id:·OTP-19427·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9232"·title="">PR-9232</a>,·<a·href="https://github.com/erlang/otp/pull/9446"·title="">PR-9446</a></p></li><li><p>The·functions·for·converting·to·and·from·the·RFC1339·date·and·time·format·would·not·properly·handle·fractional·seconds·for·negative·times.</p><p>Own·Id:·OTP-19441·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/9279"·title="">GH-9279</a>,·<a·href="https://github.com/erlang/otp/pull/9280"·title="">PR-9280</a></p></li><li><p>Replaced·calls·to·deprecated·<code·class="inline">crypto:start()</code>·with·<code·class="inline">application:start(crypto)</code>.</p><p>Own·Id:·OTP-19485·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8592"·title="">PR-8592</a></p></li><li><p>Fixed·a·bug·when·calling·shell·completion·on·a·reserved·word·followed·by·a·<em>(</em>·would·crash·the·shell.</p><p>Own·Id:·OTP-19511·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/9470"·title="">GH-9470</a></p></li><li><p>Corrected·the·spec·of·<a·href="ets.html#update_element/4"><code·class="inline">ets:update_element/4</code></a>.</p><p>Own·Id:·OTP-19514·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9504"·title="">PR-9504</a></p></li><li><p>Corrected·the·spec·for·<a·href="ets.html#info/1"><code·class="inline">ets:info/1</code></a>.</p><p>Own·Id:·OTP-19515·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9514"·title="">PR-9514</a></p></li><li><p>Fixed·crash·when·defining·records·with·a·string·field·in·the·shell</p><p>Own·Id:·OTP-19533·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/9557"·title="">GH-9557</a></p></li><li><p>Details·in·the·hibernation·implementation·and·time-out·handling·has·been·improved·for·<code·class="inline">gen_statem</code>.··In·particular·to·avoid·selective·receive·when·cancelling·a·time-out.</p><p>Own·Id:·OTP-19540·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9579"·title="">PR-9579</a></p></li><li><p>Fixed·a·bug·when·getting·help·on·a·module·compiled·without·debug_info.</p><p>Own·Id:·OTP-19583·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9654"·title="">PR-9654</a></p></li><li><p>Fix·<a·href="zip.html"><code·class="inline">zip</code></a>·extraction·to·wrap·invalid·DOS·timestamps·to·their·correct·value·instead·of·returning·the·actual·value.·Before·this·fix·the·timestamp·returned·could·have·a·second·greater·than·59.·The·bug·has·been·present·since·Erlang/OTP·27.1.</p><p>Own·Id:·OTP-19593·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9537"·title="">PR-9537</a>,·<a·href="https://github.com/erlang/otp/issues/9536"·title="">GH-9536</a></p></li><li><p>Enhance·specs·of·timeout·for·improving·documentation·and·dialyzer·analysis.</p><p>Own·Id:·OTP-19604·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9574"·title="">PR-9574</a></p></li></ul><h3·id="improvements-and-new-features"·class="section-heading"> |
| 143 | ··<a·href="#improvements-and-new-features"·class="hover-link"> | 143 | ··<a·href="#improvements-and-new-features"·class="hover-link"> |
| 144 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 144 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 145 | ··</a> | 145 | ··</a> |
| 146 | ··<span·class="text">Improvements·and·New·Features</span> | 146 | ··<span·class="text">Improvements·and·New·Features</span> |
| 147 | </h3> | 147 | </h3> |
| 148 | <ul><li><p>Singleton·type·variables·in·an·union·type·do·not·make·sense·from·Dialyzer's·point·of·view.·The·following·example·is·ill-typed:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">spec</span><span·class="w">·</span><span·class="nf">run_test</span><span·class="p"·data-group-id="0 | 148 | <ul><li><p>Singleton·type·variables·in·an·union·type·do·not·make·sense·from·Dialyzer's·point·of·view.·The·following·example·is·ill-typed:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">spec</span><span·class="w">·</span><span·class="nf">run_test</span><span·class="p"·data-group-id="3008286103-1">(</span><span·class="n">Opts</span><span·class="p"·data-group-id="3008286103-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="nf">term</span><span·class="p"·data-group-id="3008286103-2">(</sp[·...·truncated·by·diffoscope;·len:·44,·SHA:·61af1088a7536bdb40633df95af72c18af7a307ca8b7815e54609527c57d43f7·...·]-2">)</span><span·class="w"> |
| 149 | ······</span><span·class="k">when</span><span·class="w">·</span><span·class="n">Opts</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id="0 | 149 | ······</span><span·class="k">when</span><span·class="w">·</span><span·class="n">Opts</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="p"·data-group-id="3008286103-3">{</span><span·class="ss">join_specs</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Bool</span><span·class="p"·data-group-id="3008286103-3">}</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span>[·...·truncated·by·diffoscope;·len:·1237,·SHA:·8f49c9393ba7dc2b1ebb53b2c9be21fec1b79bfe8d3de97f0abb3c42838797d1·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 150 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 150 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="2359198501-2">(</span><span·class="p"·data-group-id="2359198501-3">[</span><span·class="ss">t</span><span·class="p">/</span><span·class="mi">0</span><span·class="p"·data-group-id="2359198501-3">]</span><span·class="p"·data-group-id="2359198501-2">)</span><span·class="p">.</span><span·class="w"> |
| 151 | </span><span·class="nf">bar</span><span·class="p"·data-group-id=" | 151 | </span><span·class="nf">bar</span><span·class="p"·data-group-id="2359198501-4">(</span><span·class="n">A</span><span·class="p"·data-group-id="2359198501-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">A</span><span·class="p">.</span><span·class="w"> |
| 152 | </span><span·class="nf">bar</span><span·class="p"·data-group-id=" | 152 | </span><span·class="nf">bar</span><span·class="p"·data-group-id="2359198501-5">(</span><span·class="n">A</span><span·class="p">,</span><span·class="n">A</span><span·class="p">,</span><span·class="n">A</span><span·class="p"·data-group-id="2359198501-5">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">A</span><span·class="p">.</span><span·class="w"> |
| 153 | </span><span·class="nf">bar</span><span·class="p"·data-group-id=" | 153 | </span><span·class="nf">bar</span><span·class="p"·data-group-id="2359198501-6">(</span><span·class="n">A</span><span·class="p">,</span><span·class="n">A</span><span·class="p">,</span><span·class="n">A</span><span·class="p">,</span><span·class="n">A</span><span·class="p"·data-group-id="2359198501-6">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">A</span><span·class="p">.</span><span·class="w"> |
| 154 | </span><span·class="nf">t</span><span·class="p"·data-group-id=" | 154 | </span><span·class="nf">t</span><span·class="p"·data-group-id="2359198501-7">(</span><span·class="p"·data-group-id="2359198501-7">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="nf">bar</span><span·class="p"·data-group-id="2359198501-8">(</span><span·class="mi">0</span>[·...·truncated·by·diffoscope;·len:·114,·SHA:·1b2ec10d9d2a7ad02d67776ebd7ec9313d66f7f4d23fa471756d126b6455c641·...·]-8">)</span><span·class="p">.</span></code></pre><p>The·compiler·will·emit·the·following·message:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="ss">typo</span><span·class="p">.</span><span·class="nc">erl</span><span·class="p">:</span><span·class="mi">6</span><span·class="p">:</span><span·class="mi">12</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">function</span><span·class="w">·</span><span·class="ss">bar</span><span·class="p">/</span><span·class="mi">2</span><span·class="w">·</span><span·class="ss">undefined</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">did</span><span·class="w">·</span><span·class="ss">you</span><span·class="w">·</span><span·class="ss">mean</span><span·class="w">·</span><span·class="ss">bar</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">3</span><span·class="p">,</span><span·class="mi">4</span><span·class="o">?</span><span·class="w"> |
| 155 | </span><span·class="c1">%···6|·····t()·->·bar(0,·0).</span><span·class="w"> | 155 | </span><span·class="c1">%···6|·····t()·->·bar(0,·0).</span><span·class="w"> |
| 156 | </span><span·class="c1">%····|············^</span></code></pre><p>For·compiler·errors·that·can·easily·be·caused·by·typos,·the·compiler·will·try·to·suggest·what·the·correct·variable·or·function·name,·could·be.·For·example,·given·the·following·module:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="77 | 156 | </span><span·class="c1">%····|············^</span></code></pre><p>For·compiler·errors·that·can·easily·be·caused·by·typos,·the·compiler·will·try·to·suggest·what·the·correct·variable·or·function·name,·could·be.·For·example,·given·the·following·module:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="7763642670-1">(</span><span·class="ss">typos</span><span·class="p"·data-group-id="7763642670-1">)</span><span·class="p">.</span><span·class="w"> |
| 157 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="77 | 157 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="7763642670-2">(</span><span·class="p"·data-group-id="7763642670-3">[</span><span·class="ss">bar</span><span·class="p">/</span><span·class="mi">2</span><span·class="p"·data-group-id="7763642670-3">]</span><span·class="p"·data-group-id="7763642670-2">)</span><span·class="p">.</span><span·class="w"> |
| 158 | </span><span·class="nf">bar</span><span·class="p"·data-group-id="77 | 158 | </span><span·class="nf">bar</span><span·class="p"·data-group-id="7763642670-4">(</span><span·class="n">A0</span><span·class="p">,</span><span·class="w">·</span><span·class="n">B0</span><span·class="p"·data-group-id="7763642670-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 159 | ····</span><span·class="n">A</span><span·class="w">·</span><span·class="o">+</span><span·class="w">·</span><span·class="n">B</span><span·class="p">.</span></code></pre><p>the·compiler·will·emit·the·following·error·messages:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="ss">typos</span><span·class="p">.</span><span·class="nc">erl</span><span·class="p">:</span><span·class="mi">5</span><span·class="p">:</span><span·class="mi">5</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">variable</span><span·class="w">·</span><span·class="ss">'A'</span><span·class="w">·</span><span·class="ss">is</span><span·class="w">·</span><span·class="ss">unbound</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">did</span><span·class="w">·</span><span·class="ss">you</span><span·class="w">·</span><span·class="ss">mean</span><span·class="w">·</span><span·class="ss">'A0'</span><span·class="o">?</span><span·class="w"> | 159 | ····</span><span·class="n">A</span><span·class="w">·</span><span·class="o">+</span><span·class="w">·</span><span·class="n">B</span><span·class="p">.</span></code></pre><p>the·compiler·will·emit·the·following·error·messages:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="ss">typos</span><span·class="p">.</span><span·class="nc">erl</span><span·class="p">:</span><span·class="mi">5</span><span·class="p">:</span><span·class="mi">5</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">variable</span><span·class="w">·</span><span·class="ss">'A'</span><span·class="w">·</span><span·class="ss">is</span><span·class="w">·</span><span·class="ss">unbound</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">did</span><span·class="w">·</span><span·class="ss">you</span><span·class="w">·</span><span·class="ss">mean</span><span·class="w">·</span><span·class="ss">'A0'</span><span·class="o">?</span><span·class="w"> |
| 160 | </span><span·class="c1">%····5|·····A·+·B.</span><span·class="w"> | 160 | </span><span·class="c1">%····5|·····A·+·B.</span><span·class="w"> |
| 161 | </span><span·class="c1">%·····|·····^</span><span·class="w"> | 161 | </span><span·class="c1">%·····|·····^</span><span·class="w"> |
| 162 | </span><span·class="ss">typos</span><span·class="p">.</span><span·class="nc">erl</span><span·class="p">:</span><span·class="mi">5</span><span·class="p">:</span><span·class="mi">9</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">variable</span><span·class="w">·</span><span·class="ss">'B'</span><span·class="w">·</span><span·class="ss">is</span><span·class="w">·</span><span·class="ss">unbound</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">did</span><span·class="w">·</span><span·class="ss">you</span><span·class="w">·</span><span·class="ss">mean</span><span·class="w">·</span><span·class="ss">'B0'</span><span·class="o">?</span><span·class="w"> | 162 | </span><span·class="ss">typos</span><span·class="p">.</span><span·class="nc">erl</span><span·class="p">:</span><span·class="mi">5</span><span·class="p">:</span><span·class="mi">9</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">variable</span><span·class="w">·</span><span·class="ss">'B'</span><span·class="w">·</span><span·class="ss">is</span><span·class="w">·</span><span·class="ss">unbound</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">did</span><span·class="w">·</span><span·class="ss">you</span><span·class="w">·</span><span·class="ss">mean</span><span·class="w">·</span><span·class="ss">'B0'</span><span·class="o">?</span><span·class="w"> |
| 163 | </span><span·class="c1">%····5|·····A·+·B.</span><span·class="w"> | 163 | </span><span·class="c1">%····5|·····A·+·B.</span><span·class="w"> |
| 164 | </span><span·class="c1">%·····|·········^</span></code></pre><p>Error·types·that·now·suggest·correct·arities:·<code·class="inline">bad_inline</code>,·<code·class="inline">undefined_nif</code>,·<code·class="inline">bad_nowarn_unused_function</code>,·<code·class="inline">bad_nowarn_bif_clash</code>,·<code·class="inline">undefined_function</code>.</p><p>Error·types·that·now·suggest·correct·names:·<code·class="inline">bad_inline</code>,·<code·class="inline">undefined_nif</code>,·<code·class="inline">bad_nowarn_unused_function</code>,·<code·class="inline">undefined_on_load</code>,·<code·class="inline">undefined_function</code>,·<code·class="inline">undefined_record</code>,·<code·class="inline">undefined_field</code>,·<code·class="inline">unbound_var</code>.</p><p>Using·a·function·with·wrong·arity·has·higher·precedence·than·having·a·typo·in·the·function·name.·If·the·compiler·can·find·a·defined·function·with·the·same·name·but·a·different·arity,·it·will·not·suggest·a·defined·function·with·a·close-enough·name,·regardless·of·arity.</p><p>Own·Id:·OTP-19180·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8699"·title="">PR-8699</a>,·<a·href="https://github.com/erlang/otp/pull/9094"·title="">PR-9094</a></p></li><li><p>Comprehensions·have·been·extended·with·zip·generators··according·to·<a·href="https://www.erlang.org/eeps/eep-0073">EEP·73</a>.·</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="p"·data-group-id=" | 164 | </span><span·class="c1">%·····|·········^</span></code></pre><p>Error·types·that·now·suggest·correct·arities:·<code·class="inline">bad_inline</code>,·<code·class="inline">undefined_nif</code>,·<code·class="inline">bad_nowarn_unused_function</code>,·<code·class="inline">bad_nowarn_bif_clash</code>,·<code·class="inline">undefined_function</code>.</p><p>Error·types·that·now·suggest·correct·names:·<code·class="inline">bad_inline</code>,·<code·class="inline">undefined_nif</code>,·<code·class="inline">bad_nowarn_unused_function</code>,·<code·class="inline">undefined_on_load</code>,·<code·class="inline">undefined_function</code>,·<code·class="inline">undefined_record</code>,·<code·class="inline">undefined_field</code>,·<code·class="inline">unbound_var</code>.</p><p>Using·a·function·with·wrong·arity·has·higher·precedence·than·having·a·typo·in·the·function·name.·If·the·compiler·can·find·a·defined·function·with·the·same·name·but·a·different·arity,·it·will·not·suggest·a·defined·function·with·a·close-enough·name,·regardless·of·arity.</p><p>Own·Id:·OTP-19180·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8699"·title="">PR-8699</a>,·<a·href="https://github.com/erlang/otp/pull/9094"·title="">PR-9094</a></p></li><li><p>Comprehensions·have·been·extended·with·zip·generators··according·to·<a·href="https://www.erlang.org/eeps/eep-0073">EEP·73</a>.·</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="p"·data-group-id="8095381036-1">[</span><span·class="n">A</span><span·class="o">+</span><span·class="n">B</span><span·class="w">·</span><span·class="p">||</span><span·class="w">·</span><span·class="n">A</span><span·class="w">·</span><span·class="o"><-</span><span·class="[·...·truncated·by·diffoscope;·len:·691,·SHA:·ff832d735a890a2e7d8dfdd261635240b192d8fef8970333784218219812b963·...·]-1">]</span><span·class="p">.</span><span·class="w"> |
| 165 | </span><span·class="p"·data-group-id=" | 165 | </span><span·class="p"·data-group-id="8095381036-4">[</span><span·class="mi">5</span><span·class="p">,</span><span·class="mi">7</span><span·class="p">,</span><span·class="mi">9</span><span·class="p"·data-group-id="8095381036-4">]</span></code></pre><p>Own·Id:·OTP-19184·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8926"·title="">PR-8926</a></p></li><li><p>Before·restarting·a·child,·a·supervisor·must·check·if·the·restart·limit·is·reached.·This·adds·a·penalty·to·the·overall·restart·time,·which·should·be·kept·low.·The·algorithm· |
| 166 | has·been·optimized·from·2*O(n)·to·O(n)·behavior.</p><p>Own·Id:·OTP-19204·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8261"·title="">PR-8261</a></p></li><li><p>Added·the·possibility·to·configure·shell·docs·column·width·through·the·stdlib·parameter·<a·href="stdlib_app.html#shell_docs_columns"><code·class="inline">shell_docs_columns</code></a>.</p><p>Own·Id:·OTP-19224·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8651"·title="">PR-8651</a></p></li><li><p>The·<a·href="io.html#setopts/2"><code·class="inline">io:setopts/2</code></a>·function·now·accepts·the·<code·class="inline">line_history</code>·option·for·more·explicit·handling·of·when·to·save·shell·history.</p><p>Own·Id:·OTP-19230·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8792"·title="">PR-8792</a></p></li><li><p>The·shell·now·prints·a·help·message·explaining·how·to·interrupt·a·running·command·when·stuck·executing·a·command·for·longer·than·5·seconds.</p><p>Own·Id:·OTP-19231·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8793"·title="">PR-8793</a></p></li><li><p>Binaries·can·now·be·used·as·input·to·<a·href="calendar.html#rfc3339_to_system_time/2"><code·class="inline">calendar:rfc3339_to_system_time/2</code></a>,·and·produced·as·output·of·<a·href="calendar.html#system_time_to_rfc3339/2"><code·class="inline">calendar:system_time_to_rfc3339/2</code></a>.</p><p>Own·Id:·OTP-19250·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8812"·title="">PR-8812</a></p></li><li><p>The·<a·href="../../../../erts-16.0/doc/html/erl_cmd.html#noshell"><code·class="inline">erl·-noshell</code></a>·mode·has·been·updated·to·have·two·sub·modes·called·<code·class="inline">raw</code>·and·<code·class="inline">cooked</code>,·where·<code·class="inline">cooked</code>·is·the·old·default·behaviour·and·<code·class="inline">raw</code>·can·be·used·to·bypass·the·line-editing·support·of·the·native·terminal.·Using·<code·class="inline">raw</code>·mode·it·is·possible·to·read·keystrokes·as·they·happen·without·the·user·having·to·press·Enter.·Also,·the·<code·class="inline">raw</code>·mode·does·not·echo·the·typed·characters·to·stdout.·An·example·of·how·to·create·a·tic-tac-toe·game·using·this·mechanism·is·included·in·<a·href="terminal_interface.html">the·documentation</a>.</p><p>Own·Id:·OTP-19314·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8962"·title="">PR-8962</a>,·<a·href="https://github.com/erlang/otp/issues/8037"·title="">GH-8037</a></p></li><li><p>Added·<a·href="io.html#get_password/0"><code·class="inline">io:get_password/0</code></a>·that·can·read·passwords·from·stdin·when·in·"raw"·<code·class="inline">-noshell</code>·mode.</p><p>Own·Id:·OTP-19315·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8962"·title="">PR-8962</a>,·<a·href="https://github.com/erlang/otp/pull/9006"·title="">PR-9006</a></p></li><li><p>New·strict·generators·have·been·added·for·comprehensions.</p><p>The·currently·existing·generators·are·"relaxed":·they·ignore·terms·in·the | 166 | has·been·optimized·from·2*O(n)·to·O(n)·behavior.</p><p>Own·Id:·OTP-19204·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8261"·title="">PR-8261</a></p></li><li><p>Added·the·possibility·to·configure·shell·docs·column·width·through·the·stdlib·parameter·<a·href="stdlib_app.html#shell_docs_columns"><code·class="inline">shell_docs_columns</code></a>.</p><p>Own·Id:·OTP-19224·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8651"·title="">PR-8651</a></p></li><li><p>The·<a·href="io.html#setopts/2"><code·class="inline">io:setopts/2</code></a>·function·now·accepts·the·<code·class="inline">line_history</code>·option·for·more·explicit·handling·of·when·to·save·shell·history.</p><p>Own·Id:·OTP-19230·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8792"·title="">PR-8792</a></p></li><li><p>The·shell·now·prints·a·help·message·explaining·how·to·interrupt·a·running·command·when·stuck·executing·a·command·for·longer·than·5·seconds.</p><p>Own·Id:·OTP-19231·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8793"·title="">PR-8793</a></p></li><li><p>Binaries·can·now·be·used·as·input·to·<a·href="calendar.html#rfc3339_to_system_time/2"><code·class="inline">calendar:rfc3339_to_system_time/2</code></a>,·and·produced·as·output·of·<a·href="calendar.html#system_time_to_rfc3339/2"><code·class="inline">calendar:system_time_to_rfc3339/2</code></a>.</p><p>Own·Id:·OTP-19250·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8812"·title="">PR-8812</a></p></li><li><p>The·<a·href="../../../../erts-16.0/doc/html/erl_cmd.html#noshell"><code·class="inline">erl·-noshell</code></a>·mode·has·been·updated·to·have·two·sub·modes·called·<code·class="inline">raw</code>·and·<code·class="inline">cooked</code>,·where·<code·class="inline">cooked</code>·is·the·old·default·behaviour·and·<code·class="inline">raw</code>·can·be·used·to·bypass·the·line-editing·support·of·the·native·terminal.·Using·<code·class="inline">raw</code>·mode·it·is·possible·to·read·keystrokes·as·they·happen·without·the·user·having·to·press·Enter.·Also,·the·<code·class="inline">raw</code>·mode·does·not·echo·the·typed·characters·to·stdout.·An·example·of·how·to·create·a·tic-tac-toe·game·using·this·mechanism·is·included·in·<a·href="terminal_interface.html">the·documentation</a>.</p><p>Own·Id:·OTP-19314·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8962"·title="">PR-8962</a>,·<a·href="https://github.com/erlang/otp/issues/8037"·title="">GH-8037</a></p></li><li><p>Added·<a·href="io.html#get_password/0"><code·class="inline">io:get_password/0</code></a>·that·can·read·passwords·from·stdin·when·in·"raw"·<code·class="inline">-noshell</code>·mode.</p><p>Own·Id:·OTP-19315·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8962"·title="">PR-8962</a>,·<a·href="https://github.com/erlang/otp/pull/9006"·title="">PR-9006</a></p></li><li><p>New·strict·generators·have·been·added·for·comprehensions.</p><p>The·currently·existing·generators·are·"relaxed":·they·ignore·terms·in·the |
| 167 | right-hand·side·expression·that·do·not·match·the·left-hand·side·pattern.</p><p>The·new·strict·generators·fail·with·exception·<code·class="inline">badmatch</code>·if·a·pattern·doesn't·match.</p><p>Examples:</p><p>Using·the·current·relaxed·generator·operator·<code·class="inline"><-</code>,·any·element·not·matching | 167 | right-hand·side·expression·that·do·not·match·the·left-hand·side·pattern.</p><p>The·new·strict·generators·fail·with·exception·<code·class="inline">badmatch</code>·if·a·pattern·doesn't·match.</p><p>Examples:</p><p>Using·the·current·relaxed·generator·operator·<code·class="inline"><-</code>,·any·element·not·matching |
| 168 | the·pattern·<code·class="inline">{_,_}</code>·will·be·silently·discarded:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="p"·data-group-id="6663117612-1">[</span><span·class="n">T</span><span·class="w">·</span><span·class="p">||</span><span·class="w">·</span><span·class="p"·data-group-id="6663117612-2">{</span><span·class="p">_</span><span·class="p">,</span><span·class="p">_</span><span·class="p"·data-group-id="6663117612-2">}</span><span·class="o">=</span><span·class="n">T</span><span·class="w">·</span><span·class="o"><-</span><span·class="w">·</span><span·class="p"·data-group-id="6663117612-3">[</span><span·class="p"·data-group-id="6663117612-4">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="mi">1</span><span·class="p"·data-group-id="6663117612-4">}</span><span·class="p">,</span><span·class="ss">ok</span><span·class="p">,</span><span·class="p"·data-group-id="6663117612-5">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="mi">2</span><span·class="p"·data-group-id="6663117612-5">}</span><span·class="p"·data-group-id="6663117612-3">]</span><span·class="p"·data-group-id="6663117612-1">]</span><span·class="p">.</span><span·class="w"> | ||
| 169 | 168 | the·pattern·<code·class="inline">{_,_}</code>·will·be·silently·discarded:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="p"·data-group-id="7301831841-1">[</span><span·class="n">T</span><span·class[·...·truncated·by·diffoscope;·len:·1002,·SHA:·60dcaa588f42b9f4a123b890988baf52a54df863be77ee39dd125f2bf1a40a01·...·] | |
| 169 | </span><span·class="p"·data-group-id="7301831841-6">[</span><span·class="p"·data-group-id="7301831841-7">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="mi">1</span><span·class="p"·data-group-id="7301831841-7">}</span><span·class="p">,</span><span·class="p"·data-group-id="7301831841-8">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="mi">2</span><span·class="p"·data-group-id="7301831841-8">}</span><span·class="p"·data-group-id="7301831841-6">]</span></code></pre><p>If·the·intention·is·that·all·lists·processed·by·a·list·comprehension·must·only | ||
| 170 | contain·tuples·of·size·two,·using·the·new·strict·version·of·the·operator·ensures | 170 | contain·tuples·of·size·two,·using·the·new·strict·version·of·the·operator·ensures |
| 171 | that·term·not·matching·will·cause·a·crash:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">2>·</span><span·class="p"·data-group-id=" | 171 | that·term·not·matching·will·cause·a·crash:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">2>·</span><span·class="p"·data-group-id="2350144751-1">[</span><span·class="n">T</span><span·class="w">·</span><span·class="p">||</span><span·class="w">·</span><span·class="p"·data-group-id="2350144751-2">{</span><span·class="p">_</span><span·class="p">,</span><span·class="p">_</span><span·class=[·...·truncated·by·diffoscope;·len:·752,·SHA:·8b311b4493a204e4ffb9f009ee83589646f1d7d97ddc7cc69162553051169b42·...·]-1">]</span><span·class="p">.</span><span·class="w"> |
| 172 | </span><span·class="gt">**·exception·error:·no·match·of·right·hand·side·value·ok</span></code></pre><p>Using·the·strict·generator·operator·to·mark·the·intention·that·all·list·elements·must·match·the·pattern·could·help·finding·mistakes·quicker·if·something·unpexected·is·added·to·the·list·processed·by·the·generator.</p><p>The·strict·version·for·bitstring·generators·is·<code·class="inline"><:=</code>.</p><p>Own·Id:·OTP-19317·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8625"·title="">PR-8625</a></p></li><li><p>New·options·for·suppressing·behaviour·warnings·have·been·added:</p><ul><li><code·class="inline">nowarn_conflicting_behaviours</code></li><li><code·class="inline">nowarn_undefined_behaviour_func</code></li><li><code·class="inline">nowarn_undefined_behaviour</code></li><li><code·class="inline">nowarn_undefined_behaviour_callbacks</code></li><li><code·class="inline">nowarn_ill_defined_behaviour_callbacks</code></li><li><code·class="inline">nowarn_ill_defined_optional_callbacks</code></li></ul><p>Own·Id:·OTP-19334·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/8985"·title="">GH-8985</a>,·<a·href="https://github.com/erlang/otp/pull/9020"·title="">PR-9020</a></p></li><li><p>The·<a·href="binary.html#join/2"><code·class="inline">join(Binaries,·Separator)</code></a>·function·that·joins·a·list·of·binaries·has·been·added·to·the·<a·href="binary.html"><code·class="inline">binary</code></a>·module.</p><p>Own·Id:·OTP-19337·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/8099"·title="">GH-8099</a>,·<a·href="https://github.com/erlang/otp/pull/8100"·title="">PR-8100</a></p></li><li><p>The·<a·href="supervisor.html#which_child/2"><code·class="inline">supervisor:which_child/2</code></a>·function·has·been·added·to·facilitate·getting·the·pid·of·a·sibling··process;·that·is·a·process·under·same·supervisor·as·the·process·that·calls·to·call·the·new·function.</p><p>Own·Id:·OTP-19345·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8976"·title="">PR-8976</a></p></li><li><p>The·function·<a·href="erl_anno.html#set_end_location/2"><code·class="inline">erl_anno:set_end_location/2</code></a>·for·setting·the·end·location·of·a·token·has·been·added.</p><p>Own·Id:·OTP-19354·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8966"·title="">PR-8966</a></p></li><li><p>Added·a·warning·for·calling·non-exported·functions·with·the·remote·function·call·syntax·from·the·same·module,·and·likewise·for·the·remote·fun·syntax.</p><p>Own·Id:·OTP-19371·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/9092"·title="">GH-9092</a>,·<a·href="https://github.com/erlang/otp/pull/9095"·title="">PR-9095</a></p></li><li><p>The·<code·class="inline">warn_deprecated_catch</code>·option·enables·warnings·for·use·of·old-style·catch·expressions·on·the·form·<code·class="inline">catch·Expr</code>·instead·of·the·modern·<code·class="inline">try·...·catch·...·end</code>.·To·prevent·new·uses·of·uses·of·old·catches·to·be·added,·this·compiler·option·can·be·enabled·on·the·project·level·and·<code·class="inline">-compile(nowarn_deprecated_catch).</code>·added·to·individual·files·that·still·contain·old·catches.</p><p>Own·Id:·OTP-19425·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9154"·title="">PR-9154</a></p></li><li><p>Module·<a·href="re.html"><code·class="inline">re</code></a>·has·been·updated·to·use·PCRE2,·which·is·mostly·backward·compatible·with·PCRE.</p><p>The·most·noticeable·incompatibilities·are</p><ul><li>The·default·character·encoding·is·pure·ASCII·and·not·Latin1.·Unicode·support | 172 | </span><span·class="gt">**·exception·error:·no·match·of·right·hand·side·value·ok</span></code></pre><p>Using·the·strict·generator·operator·to·mark·the·intention·that·all·list·elements·must·match·the·pattern·could·help·finding·mistakes·quicker·if·something·unpexected·is·added·to·the·list·processed·by·the·generator.</p><p>The·strict·version·for·bitstring·generators·is·<code·class="inline"><:=</code>.</p><p>Own·Id:·OTP-19317·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8625"·title="">PR-8625</a></p></li><li><p>New·options·for·suppressing·behaviour·warnings·have·been·added:</p><ul><li><code·class="inline">nowarn_conflicting_behaviours</code></li><li><code·class="inline">nowarn_undefined_behaviour_func</code></li><li><code·class="inline">nowarn_undefined_behaviour</code></li><li><code·class="inline">nowarn_undefined_behaviour_callbacks</code></li><li><code·class="inline">nowarn_ill_defined_behaviour_callbacks</code></li><li><code·class="inline">nowarn_ill_defined_optional_callbacks</code></li></ul><p>Own·Id:·OTP-19334·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/8985"·title="">GH-8985</a>,·<a·href="https://github.com/erlang/otp/pull/9020"·title="">PR-9020</a></p></li><li><p>The·<a·href="binary.html#join/2"><code·class="inline">join(Binaries,·Separator)</code></a>·function·that·joins·a·list·of·binaries·has·been·added·to·the·<a·href="binary.html"><code·class="inline">binary</code></a>·module.</p><p>Own·Id:·OTP-19337·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/8099"·title="">GH-8099</a>,·<a·href="https://github.com/erlang/otp/pull/8100"·title="">PR-8100</a></p></li><li><p>The·<a·href="supervisor.html#which_child/2"><code·class="inline">supervisor:which_child/2</code></a>·function·has·been·added·to·facilitate·getting·the·pid·of·a·sibling··process;·that·is·a·process·under·same·supervisor·as·the·process·that·calls·to·call·the·new·function.</p><p>Own·Id:·OTP-19345·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8976"·title="">PR-8976</a></p></li><li><p>The·function·<a·href="erl_anno.html#set_end_location/2"><code·class="inline">erl_anno:set_end_location/2</code></a>·for·setting·the·end·location·of·a·token·has·been·added.</p><p>Own·Id:·OTP-19354·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8966"·title="">PR-8966</a></p></li><li><p>Added·a·warning·for·calling·non-exported·functions·with·the·remote·function·call·syntax·from·the·same·module,·and·likewise·for·the·remote·fun·syntax.</p><p>Own·Id:·OTP-19371·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/9092"·title="">GH-9092</a>,·<a·href="https://github.com/erlang/otp/pull/9095"·title="">PR-9095</a></p></li><li><p>The·<code·class="inline">warn_deprecated_catch</code>·option·enables·warnings·for·use·of·old-style·catch·expressions·on·the·form·<code·class="inline">catch·Expr</code>·instead·of·the·modern·<code·class="inline">try·...·catch·...·end</code>.·To·prevent·new·uses·of·uses·of·old·catches·to·be·added,·this·compiler·option·can·be·enabled·on·the·project·level·and·<code·class="inline">-compile(nowarn_deprecated_catch).</code>·added·to·individual·files·that·still·contain·old·catches.</p><p>Own·Id:·OTP-19425·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9154"·title="">PR-9154</a></p></li><li><p>Module·<a·href="re.html"><code·class="inline">re</code></a>·has·been·updated·to·use·PCRE2,·which·is·mostly·backward·compatible·with·PCRE.</p><p>The·most·noticeable·incompatibilities·are</p><ul><li>The·default·character·encoding·is·pure·ASCII·and·not·Latin1.·Unicode·support |
| 173 | is·still·available·with·options·<code·class="inline">unicode</code>·and·<code·class="inline">ucp</code>.</li><li>Options·<code·class="inline">bsr_anycrlf</code>,·<code·class="inline">bsr_unicode</code>·and·<code·class="inline">{newline,_}</code>·are·only·set·when·a | 173 | is·still·available·with·options·<code·class="inline">unicode</code>·and·<code·class="inline">ucp</code>.</li><li>Options·<code·class="inline">bsr_anycrlf</code>,·<code·class="inline">bsr_unicode</code>·and·<code·class="inline">{newline,_}</code>·are·only·set·when·a |
| 174 | regex·is·compiled·and·cannot·be·changed·at·matching·for·precompiled·regex.</li></ul><p><strong><em>·POTENTIAL·INCOMPATIBILITY·</em></strong></p><p>Own·Id:·OTP-19431·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9299"·title="">PR-9299</a>,·<a·href="https://github.com/erlang/otp/pull/9610"·title="">PR-9610</a></p></li><li><p>Defining·a·fun·in·terms·of·an·imported·function·is·not·allowed.·Before·this·release,·the·compiler·would·not·catch·this·kind·of·error·if·the·name·of·the·imported·function·happened·to·be·a·BIF.··Consider·this·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 174 | regex·is·compiled·and·cannot·be·changed·at·matching·for·precompiled·regex.</li></ul><p><strong><em>·POTENTIAL·INCOMPATIBILITY·</em></strong></p><p>Own·Id:·OTP-19431·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9299"·title="">PR-9299</a>,·<a·href="https://github.com/erlang/otp/pull/9610"·title="">PR-9610</a></p></li><li><p>Defining·a·fun·in·terms·of·an·imported·function·is·not·allowed.·Before·this·release,·the·compiler·would·not·catch·this·kind·of·error·if·the·name·of·the·imported·function·happened·to·be·a·BIF.··Consider·this·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="2283985373-1">(</span><span·class="ss">fun_example</span><span·class="p"·data-group-id="2283985373-1">)</span><span·class="p">.</span><span·class="w"> |
| 175 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 175 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="2283985373-2">(</span><span·class="p"·data-group-id="2283985373-3">[</span><span·class="ss">foo</span><span·class="p">/</span><span·class="mi">0</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">bar</span><span·class="p">/</span><span·[·...·truncated·by·diffoscope;·len:·112,·SHA:·b699202b735e3a6f5bc5c515c9019aa8d60b00885bfec0bfca82a0feeb1b24db·...·]3-2">)</span><span·class="p">.</span><span·class="w"> |
| 176 | </span><span·class="p">-</span><span·class="na">import</span><span·class="p"·data-group-id=" | 176 | </span><span·class="p">-</span><span·class="na">import</span><span·class="p"·data-group-id="2283985373-4">(</span><span·class="ss">m</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2283985373-5">[</span><span·class="ss">max</span><span·class="p">/</span><span·class="mi">2</span><span·class="p">,</span><span·cl[·...·truncated·by·diffoscope;·len:·191,·SHA:·0b79fc47c90e86623203fe4ccf484d7e0efcbb28fcf4e0bab72affd08ed2ff17·...·]3-4">)</span><span·class="p">.</span><span·class="w"> |
| 177 | </span><span·class="nf">foo</span><span·class="p"·data-group-id=" | 177 | </span><span·class="nf">foo</span><span·class="p"·data-group-id="2283985373-6">(</span><span·class="p"·data-group-id="2283985373-6">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 178 | ····</span><span·class="k">fun</span><span·class="w">·</span><span·class="ss">max</span><span·class="p">/</span><span·class="mi">2</span><span·class="p">.</span><span·class="w"> | 178 | ····</span><span·class="k">fun</span><span·class="w">·</span><span·class="ss">max</span><span·class="p">/</span><span·class="mi">2</span><span·class="p">.</span><span·class="w"> |
| 179 | </span><span·class="nf">bar</span><span·class="p"·data-group-id=" | 179 | </span><span·class="nf">bar</span><span·class="p"·data-group-id="2283985373-7">(</span><span·class="p"·data-group-id="2283985373-7">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 180 | ····</span><span·class="k">fun</span><span·class="w">·</span><span·class="ss">not_a_bif</span><span·class="p">/</span><span·class="mi">0</span><span·class="p">.</span></code></pre><p>The·compiler·in·Erlang/OTP·27·would·generate·the·following·messages:</p><pre><code·class="text">fun_example.erl:9:5:·function·not_a_bif/0·undefined | 180 | ····</span><span·class="k">fun</span><span·class="w">·</span><span·class="ss">not_a_bif</span><span·class="p">/</span><span·class="mi">0</span><span·class="p">.</span></code></pre><p>The·compiler·in·Erlang/OTP·27·would·generate·the·following·messages:</p><pre><code·class="text">fun_example.erl:9:5:·function·not_a_bif/0·undefined |
| 181 | %····9|·····fun·not_a_bif/0. | 181 | %····9|·····fun·not_a_bif/0. |
| 182 | %·····|·····^ | 182 | %·····|·····^ |
| 183 | fun_example.erl:3:2:·Warning:·import·directive·overrides·auto-imported·BIF·max/2·-- | 183 | fun_example.erl:3:2:·Warning:·import·directive·overrides·auto-imported·BIF·max/2·-- |
| 184 | use·"-compile({no_auto_import,[max/2]})."·to·resolve·name·clash | 184 | use·"-compile({no_auto_import,[max/2]})."·to·resolve·name·clash |
| 185 | %····3|·-import(m,·[max/2,·not_a_bif/0]). | 185 | %····3|·-import(m,·[max/2,·not_a_bif/0]). |
| Offset 196, 29 lines modified | Offset 196, 29 lines modified | ||
| 196 | fun_example.erl:9:5:·creating·a·fun·from·imported·name·not_a_bif/0·is·not·allowed | 196 | fun_example.erl:9:5:·creating·a·fun·from·imported·name·not_a_bif/0·is·not·allowed |
| 197 | %····9|·····fun·not_a_bif/0. | 197 | %····9|·····fun·not_a_bif/0. |
| 198 | %·····|·····^ | 198 | %·····|·····^ |
| 199 | fun_example.erl:3:2:·Warning:·import·directive·overrides·auto-imported·BIF·max/2·-- | 199 | fun_example.erl:3:2:·Warning:·import·directive·overrides·auto-imported·BIF·max/2·-- |
| 200 | use·"-compile({no_auto_import,[max/2]})."·to·resolve·name·clash | 200 | use·"-compile({no_auto_import,[max/2]})."·to·resolve·name·clash |
| 201 | %····3|·-import(m,·[max/2,·not_a_bif/0]). | 201 | %····3|·-import(m,·[max/2,·not_a_bif/0]). |
| 202 | %·····|··^</code></pre><p>Also,·attempting·to·call·a·local·function·having·the·same·name·as·auto-imported·BIF·would·result·in·an·error·if·the·BIF·was·added·to·Erlang/OTP·before·R14,·and·a·warning·for·newer·BIFs.·This·has·been·changed·to·always·emit·a·warning.·For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 202 | %·····|··^</code></pre><p>Also,·attempting·to·call·a·local·function·having·the·same·name·as·auto-imported·BIF·would·result·in·an·error·if·the·BIF·was·added·to·Erlang/OTP·before·R14,·and·a·warning·for·newer·BIFs.·This·has·been·changed·to·always·emit·a·warning.·For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="8350267873-1">(</span><span·class="ss">bif_example</span><span·class="p"·data-group-id="8350267873-1">)</span><span·class="p">.</span><span·class="w"> |
| 203 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 203 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="8350267873-2">(</span><span·class="p"·data-group-id="8350267873-3">[</span><span·class="ss">bar</span><span·class="p">/</span><span·class="mi">1</span><span·class="p"·data-group-id="8350267873-3">]</span><span·class="p"·data-group-id="8350267873-2">)</span><span·class="p">.</span><span·class="w"> |
| 204 | </span><span·class="nf">bar</span><span·class="p"·data-group-id=" | 204 | </span><span·class="nf">bar</span><span·class="p"·data-group-id="8350267873-4">(</span><span·class="n">B</span><span·class="p"·data-group-id="8350267873-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 205 | ····</span><span·class="nf">is_boolean</span><span·class="p"·data-group-id=" | 205 | ····</span><span·class="nf">is_boolean</span><span·class="p"·data-group-id="8350267873-5">(</span><span·class="n">B</span><span·class="p"·data-group-id="8350267873-5">)</span><span·class="p">.</span><span·class="w"> |
| 206 | </span><span·class="nf">is_boolean</span><span·class="p"·data-group-id=" | 206 | </span><span·class="nf">is_boolean</span><span·class="p"·data-group-id="8350267873-6">(</span><span·class="n">B</span><span·class="p"·data-group-id="8350267873-6">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 207 | ········</span><span·class="n">B</span><span·class="w">·</span><span·class="o">=:=</span><span·class="w">·</span><span·class="ss">true</span><span·class="w">·</span><span·class="ow">orelse</span><span·class="w">·</span><span·class="n">B</span><span·class="w">·</span><span·class="o">=:=</span><span·class="w">·</span><span·class="ss">false</span><span·class="p">.</span></code></pre><p>will·now·result·in·the·following·warning·instead·of·an·error:</p><pre><code·class="text">if_example.erl:5:5:·Warning:·ambiguous·call·of·overridden·auto-imported·BIF·is_boolean/1·-- | 207 | ········</span><span·class="n">B</span><span·class="w">·</span><span·class="o">=:=</span><span·class="w">·</span><span·class="ss">true</span><span·class="w">·</span><span·class="ow">orelse</span><span·class="w">·</span><span·class="n">B</span><span·class="w">·</span><span·class="o">=:=</span><span·class="w">·</span><span·class="ss">false</span><span·class="p">.</span></code></pre><p>will·now·result·in·the·following·warning·instead·of·an·error:</p><pre><code·class="text">if_example.erl:5:5:·Warning:·ambiguous·call·of·overridden·auto-imported·BIF·is_boolean/1·-- |
| 208 | use·erlang:is_boolean/1·or·"-compile({no_auto_import,[is_boolean/1]})."·to·resolve·name·clash | 208 | use·erlang:is_boolean/1·or·"-compile({no_auto_import,[is_boolean/1]})."·to·resolve·name·clash |
| 209 | %····5|·····is_boolean(B). | 209 | %····5|·····is_boolean(B). |
| 210 | %·····|·····^</code></pre><p>Own·Id:·OTP-19432·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9246"·title="">PR-9246</a></p></li><li><p>It·is·now·possible·to·use·any·base·for·floating·point·numbers·as·described·in·<a·href="https://www.erlang.org/eeps/eep-0075">EEP·75:·Based·Floating·Point·Literals</a>.</p><p>Computers·represent·floating·point·numbers·in·binary,·but·such·numbers·are·typically·printed·using·base·ten,·for·example·0.314159265e1.·To·maintain·exact·bit-level·precision·when·converting·numbers·to·and·from·text,·it·is·better·to·use·a·base·that·matches·the·internally·used·base,·such·as·16·for·a·compact·but·still·exact·representation,·or·2·for·visualizing·or·writing·down·the·exact·internal·format.·One·particular·case·where·such·exact·representations·are·useful·is·in·code·generating·tools.</p><p>Examples:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="mi">2#0</span><span·class="p">.</span><span·class="mi">111</span><span·class="p">.</span><span·class="w"> | 210 | %·····|·····^</code></pre><p>Own·Id:·OTP-19432·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9246"·title="">PR-9246</a></p></li><li><p>It·is·now·possible·to·use·any·base·for·floating·point·numbers·as·described·in·<a·href="https://www.erlang.org/eeps/eep-0075">EEP·75:·Based·Floating·Point·Literals</a>.</p><p>Computers·represent·floating·point·numbers·in·binary,·but·such·numbers·are·typically·printed·using·base·ten,·for·example·0.314159265e1.·To·maintain·exact·bit-level·precision·when·converting·numbers·to·and·from·text,·it·is·better·to·use·a·base·that·matches·the·internally·used·base,·such·as·16·for·a·compact·but·still·exact·representation,·or·2·for·visualizing·or·writing·down·the·exact·internal·format.·One·particular·case·where·such·exact·representations·are·useful·is·in·code·generating·tools.</p><p>Examples:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="mi">2#0</span><span·class="p">.</span><span·class="mi">111</span><span·class="p">.</span><span·class="w"> |
| 211 | </span><span·class="mf">0.875</span><span·class="gp·unselectable"> | 211 | </span><span·class="mf">0.875</span><span·class="gp·unselectable"> |
| 212 | >·</span><span·class="mi">16#fefe</span><span·class="p">.</span><span·class="ss">fefe</span><span·class="o">#</span><span·class="ss">e16</span><span·class="p">.</span><span·class="w"> | 212 | >·</span><span·class="mi">16#fefe</span><span·class="p">.</span><span·class="ss">fefe</span><span·class="o">#</span><span·class="ss">e16</span><span·class="p">.</span><span·class="w"> |
| 213 | </span><span·class="mf">1.2041849337671418e24</span></code></pre><p>Own·Id:·OTP-19452·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9106"·title="">PR-9106</a></p></li><li><p>The·callback·function·<code·class="inline">handle_continue/2</code>·in·<code·class="inline">gen_server</code>·callback·modules·is·now·cached·like·the·others,·thanks·to·code·cleanup·and·optimization·of·the·internal·behaviour·loop.</p><p>This·should·only·improve·performance,·not·affect·functionality.</p><p>Own·Id:·OTP-19474·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9333"·title="">PR-9333</a></p></li><li><p>Encoding·done·by·the·<a·href="json.html"><code·class="inline">json</code></a>·module·has·been·optimized.</p><p>Own·Id:·OTP-19476·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9251"·title="">PR-9251</a></p></li><li><p>There·is·a·new·<a·href="zstd.html"><code·class="inline">zstd</code></a>·module·that·does·<a·href="https://facebook.github.io/zstd/">Zstandard</a>·compression.</p><p>Own·Id:·OTP-19477·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9316"·title="">PR-9316</a></p></li><li><p>Fixed·licenses·in·files·and·added·ORT·curations·to·the·following·apps:·otp,·eldap,·erl_interface,·eunit,·parsetools,·stdlib,·syntax_tools,·and·ERTS.</p><p>Own·Id:·OTP-19478·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9376"·title="">PR-9376</a>,·<a·href="https://github.com/erlang/otp/pull/9402"·title="">PR-9402</a>,·<a·href="https://github.com/erlang/otp/pull/9819"·title="">PR-9819</a></p></li><li><p>Functions·of·a·module·can·now·be·grouped·in·the·shell·code·completion·by·using·the·<em>group</em>·key·in·the·<em>-doc</em>·attribute·e.g.·<code·class="inline">-doc(#{group=><<"Public·API">>).·fetch()->...</code>.</p><p>Functions,·callbacks·and·types·in·the·module·reference·documentation·of·OTP·is·now·grouped·using·this·feature.</p><p>Own·Id:·OTP-19483·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9408"·title="">PR-9408</a></p></li><li><p>Added·calendar:universal_time_to_system_time/1,2·and·calendar:local_time_to_system_time/1,2</p><p>Own·Id:·OTP-19505·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9445"·title="">PR-9445</a></p></li><li><p>Improve·error·messages·for·<a·href="json.html#decode/1"><code·class="inline">json:decode/1</code></a>.</p><p>Own·Id:·OTP-19508·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9484"·title="">PR-9484</a></p></li><li><p>ETS·<code·class="inline">heir</code>·can·be·set·without·getting·an·<code·class="inline">ETS-TRANSFER</code>·message.·Useful·when·the·heir·is·a·supervisor·process·that·cannot·handle·custom·messages.</p><p>Own·Id:·OTP-19512·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/7970"·title="">PR-7970</a></p></li><li><p>Added·support·for·the·Unicode·16·standard.</p><p>Own·Id:·OTP-19516·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9518"·title="">PR-9518</a>,·<a·href="https://github.com/erlang/otp/pull/9141"·title="">PR-9141</a></p></li><li><p>When·documenting·a·function·or·type·that·needs·to·deal·with·durations,·usually·we·can·document·it·as·"time·in·milliseconds".·Since·the·<code·class="inline">timer</code>·family·of·functions·(<code·class="inline">hms</code>,·<code·class="inline">hours</code>,·<code·class="inline">seconds</code>,·...)·all·return·time·in·milliseconds,·it·is·useful·to·be·able·to·use·this·type·in·type·specifications.</p><p>Own·Id:·OTP-19526·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9515"·title="">PR-9515</a></p></li><li><p>A·new·event·time-out·has·been·implemented·in·<code·class="inline">gen_server</code>,·that·behaves·more·like·the·one·in·<code·class="inline">gen_statem</code>.</p><p>See·the·type·<code·class="inline">gen_server:action/0</code>·for·<code·class="inline">{timeout|hibernate,...}</code>,·and·also·related·functions.</p><p>Own·Id:·OTP-19537·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9287"·title="">PR-9287</a>,·<a·href="https://github.com/erlang/otp/pull/9615"·title="">PR-9615</a>,·<a·href="https://github.com/erlang/otp/pull/9621"·title="">PR-9621</a></p></li><li><p>Line·numbers·used·to·be·reported·in·the·following·way:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">last</span><span·class="p"·data-group-id=" | 213 | </span><span·class="mf">1.2041849337671418e24</span></code></pre><p>Own·Id:·OTP-19452·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9106"·title="">PR-9106</a></p></li><li><p>The·callback·function·<code·class="inline">handle_continue/2</code>·in·<code·class="inline">gen_server</code>·callback·modules·is·now·cached·like·the·others,·thanks·to·code·cleanup·and·optimization·of·the·internal·behaviour·loop.</p><p>This·should·only·improve·performance,·not·affect·functionality.</p><p>Own·Id:·OTP-19474·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9333"·title="">PR-9333</a></p></li><li><p>Encoding·done·by·the·<a·href="json.html"><code·class="inline">json</code></a>·module·has·been·optimized.</p><p>Own·Id:·OTP-19476·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9251"·title="">PR-9251</a></p></li><li><p>There·is·a·new·<a·href="zstd.html"><code·class="inline">zstd</code></a>·module·that·does·<a·href="https://facebook.github.io/zstd/">Zstandard</a>·compression.</p><p>Own·Id:·OTP-19477·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9316"·title="">PR-9316</a></p></li><li><p>Fixed·licenses·in·files·and·added·ORT·curations·to·the·following·apps:·otp,·eldap,·erl_interface,·eunit,·parsetools,·stdlib,·syntax_tools,·and·ERTS.</p><p>Own·Id:·OTP-19478·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9376"·title="">PR-9376</a>,·<a·href="https://github.com/erlang/otp/pull/9402"·title="">PR-9402</a>,·<a·href="https://github.com/erlang/otp/pull/9819"·title="">PR-9819</a></p></li><li><p>Functions·of·a·module·can·now·be·grouped·in·the·shell·code·completion·by·using·the·<em>group</em>·key·in·the·<em>-doc</em>·attribute·e.g.·<code·class="inline">-doc(#{group=><<"Public·API">>).·fetch()->...</code>.</p><p>Functions,·callbacks·and·types·in·the·module·reference·documentation·of·OTP·is·now·grouped·using·this·feature.</p><p>Own·Id:·OTP-19483·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9408"·title="">PR-9408</a></p></li><li><p>Added·calendar:universal_time_to_system_time/1,2·and·calendar:local_time_to_system_time/1,2</p><p>Own·Id:·OTP-19505·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9445"·title="">PR-9445</a></p></li><li><p>Improve·error·messages·for·<a·href="json.html#decode/1"><code·class="inline">json:decode/1</code></a>.</p><p>Own·Id:·OTP-19508·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9484"·title="">PR-9484</a></p></li><li><p>ETS·<code·class="inline">heir</code>·can·be·set·without·getting·an·<code·class="inline">ETS-TRANSFER</code>·message.·Useful·when·the·heir·is·a·supervisor·process·that·cannot·handle·custom·messages.</p><p>Own·Id:·OTP-19512·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/7970"·title="">PR-7970</a></p></li><li><p>Added·support·for·the·Unicode·16·standard.</p><p>Own·Id:·OTP-19516·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9518"·title="">PR-9518</a>,·<a·href="https://github.com/erlang/otp/pull/9141"·title="">PR-9141</a></p></li><li><p>When·documenting·a·function·or·type·that·needs·to·deal·with·durations,·usually·we·can·document·it·as·"time·in·milliseconds".·Since·the·<code·class="inline">timer</code>·family·of·functions·(<code·class="inline">hms</code>,·<code·class="inline">hours</code>,·<code·class="inline">seconds</code>,·...)·all·return·time·in·milliseconds,·it·is·useful·to·be·able·to·use·this·type·in·type·specifications.</p><p>Own·Id:·OTP-19526·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9515"·title="">PR-9515</a></p></li><li><p>A·new·event·time-out·has·been·implemented·in·<code·class="inline">gen_server</code>,·that·behaves·more·like·the·one·in·<code·class="inline">gen_statem</code>.</p><p>See·the·type·<code·class="inline">gen_server:action/0</code>·for·<code·class="inline">{timeout|hibernate,...}</code>,·and·also·related·functions.</p><p>Own·Id:·OTP-19537·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9287"·title="">PR-9287</a>,·<a·href="https://github.com/erlang/otp/pull/9615"·title="">PR-9615</a>,·<a·href="https://github.com/erlang/otp/pull/9621"·title="">PR-9621</a></p></li><li><p>Line·numbers·used·to·be·reported·in·the·following·way:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">last</span><span·class="p"·data-group-id="9541089162-1">(</span><span·class="p"·data-group-id="9541089162-2">[</span><span·class="p"·data-group-id="9541089162-2">]</span><span·class="p"·data-group-id="9541089162-1">)</span><span·class="p">.</span><span·class="w"> |
| 214 | </span><span·class="gt">**·exception·error:·no·function·clause·matching·lists:last([])·(lists.erl,·line·389)</span></code></pre><p>Starting·from·Erlang/OTP·28,·line·numbers·are·now·reported·in·the·following·way:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">last</span><span·class="p"·data-group-id=" | 214 | </span><span·class="gt">**·exception·error:·no·function·clause·matching·lists:last([])·(lists.erl,·line·389)</span></code></pre><p>Starting·from·Erlang/OTP·28,·line·numbers·are·now·reported·in·the·following·way:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">last</span><span·class="p"·data-group-id="8783762734-1">(</span><span·class="p"·data-group-id="8783762734-2">[</span><span·class="p"·data-group-id="8783762734-2">]</span><span·class="p"·data-group-id="8783762734-1">)</span><span·class="p">.</span><span·class="w"> |
| 215 | </span><span·class="gt">**·exception·error:·no·function·clause·matching·lists:last([])·(lists.erl:389)</span></code></pre><p>Own·Id:·OTP-19538·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9468"·title="">PR-9468</a></p></li><li><p>Upgrade·pcre2·to·10.45</p><p>Own·Id:·OTP-19541·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9582"·title="">PR-9582</a></p></li><li><p>Added·functions·that·produce·utf-8·binaries·instead·of·iolists.· | 215 | </span><span·class="gt">**·exception·error:·no·function·clause·matching·lists:last([])·(lists.erl:389)</span></code></pre><p>Own·Id:·OTP-19538·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9468"·title="">PR-9468</a></p></li><li><p>Upgrade·pcre2·to·10.45</p><p>Own·Id:·OTP-19541·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9582"·title="">PR-9582</a></p></li><li><p>Added·functions·that·produce·utf-8·binaries·instead·of·iolists.· |
| 216 | New·functions·are:·<a·href="io_lib.html#bformat/2"><code·class="inline">io_lib:bformat/2</code></a>,·<a·href="io_lib.html#bformat/3"><code·class="inline">io_lib:bformat/3</code></a>,·<a·href="io_lib.html#bfwrite/2"><code·class="inline">io_lib:bfwrite/2</code></a>,·<a·href="io_lib.html#bfwrite/3"><code·class="inline">io_lib:bfwrite/3</code></a>,·<a·href="io_lib.html#bwrite/2"><code·class="inline">io_lib:bwrite/2</code></a>·and·<a·href="io_lib.html#bwrite_string/3"><code·class="inline">io_lib:bwrite_string/3</code></a>.</p><p>Own·Id:·OTP-19556·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9772"·title="">PR-9772</a></p></li><li><p>The·license·and·copyright·header·has·changed·format·to·include·an·<code·class="inline">SPDX-License-Identifier</code>.·At·the·same·time,·most·files·have·been·updated·to·follow·a·uniform·standard·for·license·headers.</p><p>Own·Id:·OTP-19575·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9670"·title="">PR-9670</a></p></li><li><p>A·list·of·PCRE2·incompatibilities·is·documented·in·a·user's·guide·for·stdlib.</p><p>Own·Id:·OTP-19578·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9705"·title="">PR-9705</a></p></li><li><p>Change·automatic·hibernation·of·static·supervisors·so·that·they·will·hibernate·after·being·idle·for·1·second·instead·of·only·after·starting,·dynamic·supervisors·(simple_one_for_one)·will·not·be·hibernated·at·all.··An·option·to·the·supervisor·is·added·to·make·it·configurable·for·the·application.·This·option·defaults·to·1·second·for·static·supervisors·and·to·infinity·for·the·simple_one_for_one·supervisors.</p><p><strong><em>·POTENTIAL·INCOMPATIBILITY·</em></strong></p><p>Own·Id:·OTP-19597·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9680"·title="">PR-9680</a></p></li></ul><h2·id="stdlib-6-2-2"·class="section-heading"> | 216 | New·functions·are:·<a·href="io_lib.html#bformat/2"><code·class="inline">io_lib:bformat/2</code></a>,·<a·href="io_lib.html#bformat/3"><code·class="inline">io_lib:bformat/3</code></a>,·<a·href="io_lib.html#bfwrite/2"><code·class="inline">io_lib:bfwrite/2</code></a>,·<a·href="io_lib.html#bfwrite/3"><code·class="inline">io_lib:bfwrite/3</code></a>,·<a·href="io_lib.html#bwrite/2"><code·class="inline">io_lib:bwrite/2</code></a>·and·<a·href="io_lib.html#bwrite_string/3"><code·class="inline">io_lib:bwrite_string/3</code></a>.</p><p>Own·Id:·OTP-19556·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9772"·title="">PR-9772</a></p></li><li><p>The·license·and·copyright·header·has·changed·format·to·include·an·<code·class="inline">SPDX-License-Identifier</code>.·At·the·same·time,·most·files·have·been·updated·to·follow·a·uniform·standard·for·license·headers.</p><p>Own·Id:·OTP-19575·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9670"·title="">PR-9670</a></p></li><li><p>A·list·of·PCRE2·incompatibilities·is·documented·in·a·user's·guide·for·stdlib.</p><p>Own·Id:·OTP-19578·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9705"·title="">PR-9705</a></p></li><li><p>Change·automatic·hibernation·of·static·supervisors·so·that·they·will·hibernate·after·being·idle·for·1·second·instead·of·only·after·starting,·dynamic·supervisors·(simple_one_for_one)·will·not·be·hibernated·at·all.··An·option·to·the·supervisor·is·added·to·make·it·configurable·for·the·application.·This·option·defaults·to·1·second·for·static·supervisors·and·to·infinity·for·the·simple_one_for_one·supervisors.</p><p><strong><em>·POTENTIAL·INCOMPATIBILITY·</em></strong></p><p>Own·Id:·OTP-19597·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9680"·title="">PR-9680</a></p></li></ul><h2·id="stdlib-6-2-2"·class="section-heading"> |
| 217 | ··<a·href="#stdlib-6-2-2"·class="hover-link"> | 217 | ··<a·href="#stdlib-6-2-2"·class="hover-link"> |
| 218 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 218 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 219 | ··</a> | 219 | ··</a> |
| 220 | ··<span·class="text">STDLIB·6.2.2</span> | 220 | ··<span·class="text">STDLIB·6.2.2</span> |
| 221 | </h2> | 221 | </h2> |
| Offset 250, 33 lines modified | Offset 250, 33 lines modified | ||
| 250 | ··<a·href="#fixed-bugs-and-malfunctions-3"·class="hover-link"> | 250 | ··<a·href="#fixed-bugs-and-malfunctions-3"·class="hover-link"> |
| 251 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 251 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 252 | ··</a> | 252 | ··</a> |
| 253 | ··<span·class="text">Fixed·Bugs·and·Malfunctions</span> | 253 | ··<span·class="text">Fixed·Bugs·and·Malfunctions</span> |
| 254 | </h3> | 254 | </h3> |
| 255 | <ul><li><p>Made·it·possible·to·expand·help·text·displayed·by·pressing·^[h·by·pressing·^[h·again.</p><p>Own·Id:·OTP-19260·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8884"·title="">PR-8884</a></p></li><li><p>Defining·a·fun·in·the·shell·using·the·syntax·<code·class="inline">fun·Name/Arity</code>·would·fail.·This·has·been·corrected·so·that·the·following·now·works:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">F</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="k">fun</span><span·class="w">·</span><span·class="nb">is_atom</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">.</span><span·class="w"> | 255 | <ul><li><p>Made·it·possible·to·expand·help·text·displayed·by·pressing·^[h·by·pressing·^[h·again.</p><p>Own·Id:·OTP-19260·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8884"·title="">PR-8884</a></p></li><li><p>Defining·a·fun·in·the·shell·using·the·syntax·<code·class="inline">fun·Name/Arity</code>·would·fail.·This·has·been·corrected·so·that·the·following·now·works:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">F</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="k">fun</span><span·class="w">·</span><span·class="nb">is_atom</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">.</span><span·class="w"> |
| 256 | </span><span·class="p">#</span><span·class="n">Fun</span><span·class="p">.</span><span·class="ss">erl</span><span·class="p">.</span><span·class="mf">42.18682967</span><span·class="o">></span><span·class="gp·unselectable"> | 256 | </span><span·class="p">#</span><span·class="n">Fun</span><span·class="p">.</span><span·class="ss">erl</span><span·class="p">.</span><span·class="mf">42.18682967</span><span·class="o">></span><span·class="gp·unselectable"> |
| 257 | >·</span><span·class="n">F</span><span·class="p"·data-group-id="3 | 257 | >·</span><span·class="n">F</span><span·class="p"·data-group-id="9332063699-1">(</span><span·class="ss">a</span><span·class="p"·data-group-id="9332063699-1">)</span><span·class="p">.</span><span·class="w"> |
| 258 | </span><span·class="ss">true</span><span·class="gp·unselectable"> | 258 | </span><span·class="ss">true</span><span·class="gp·unselectable"> |
| 259 | 3>·</span><span·class="n">Id</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="k">fun</span><span·class="w">·</span><span·class="ss">id</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">.</span><span·class="w"> | 259 | 3>·</span><span·class="n">Id</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="k">fun</span><span·class="w">·</span><span·class="ss">id</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">.</span><span·class="w"> |
| 260 | </span><span·class="p">#</span><span·class="n">Fun</span><span·class="p">.</span><span·class="ss">erl</span><span·class="p">.</span><span·class="mf">42.18682967</span><span·class="o">></span><span·class="gp·unselectable"> | 260 | </span><span·class="p">#</span><span·class="n">Fun</span><span·class="p">.</span><span·class="ss">erl</span><span·class="p">.</span><span·class="mf">42.18682967</span><span·class="o">></span><span·class="gp·unselectable"> |
| 261 | 4>·</span><span·class="n">Id</span><span·class="p"·data-group-id="3 | 261 | 4>·</span><span·class="n">Id</span><span·class="p"·data-group-id="9332063699-2">(</span><span·class="mi">42</span><span·class="p"·data-group-id="9332063699-2">)</span><span·class="p">.</span><span·class="w"> |
| 262 | </span><span·class="gt">**·exception·error:·undefined·shell·command·id/1</span><span·class="gp·unselectable"> | 262 | </span><span·class="gt">**·exception·error:·undefined·shell·command·id/1</span><span·class="gp·unselectable"> |
| 263 | 5>·</span><span·class="nf">id</span><span·class="p"·data-group-id="3 | 263 | 5>·</span><span·class="nf">id</span><span·class="p"·data-group-id="9332063699-3">(</span><span·class="n">I</span><span·class="p"·data-group-id="9332063699-3">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">I</span><span·class="p">.</span><span·class="w"> |
| 264 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> | 264 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> |
| 265 | 6>·</span><span·class="n">Id</span><span·class="p"·data-group-id="3 | 265 | 6>·</span><span·class="n">Id</span><span·class="p"·data-group-id="9332063699-4">(</span><span·class="mi">42</span><span·class="p"·data-group-id="9332063699-4">)</span><span·class="p">.</span><span·class="w"> |
| 266 | </span><span·class="mi">42</span></code></pre><p>The·Debugger·has·also·been·corrected·to·correctly·handle·this·syntax·for·a·BIF.</p><p>Own·Id:·OTP-19322·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/8963"·title="">GH-8963</a>,·<a·href="https://github.com/erlang/otp/pull/8987"·title="">PR-8987</a></p></li><li><p>Fixed·a·bug·where·completion·of·'fun('·would·cause·the·shell·to·crash.</p><p>Own·Id:·OTP-19351·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9043"·title="">PR-9043</a></p></li><li><p>Fixed·a·bug·causing·the·shell·to·crash·while·trying·to·complete·an·expression·starting·with·a·'/'·or·a·variable·followed·by·'('·or·'/'.·E.g.·Foo/·and·Foo(.</p><p>Own·Id:·OTP-19361·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9078"·title="">PR-9078</a></p></li><li><p><a·href="zip.html#extract/2"><code·class="inline">zip:extract/2</code></a>·with·<code·class="inline">keep_old_files</code>·now·respects·the·<code·class="inline">cwd</code>·option.</p><p>Own·Id:·OTP-19370·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9097"·title="">PR-9097</a>,·<a·href="https://github.com/erlang/otp/issues/9087"·title="">GH-9087</a></p></li><li><p>Fixed·an·error·in·uri_string:percent_decode·spec</p><p>Own·Id:·OTP-19380·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/8755"·title="">GH-8755</a></p></li></ul><h3·id="improvements-and-new-features-1"·class="section-heading"> | 266 | </span><span·class="mi">42</span></code></pre><p>The·Debugger·has·also·been·corrected·to·correctly·handle·this·syntax·for·a·BIF.</p><p>Own·Id:·OTP-19322·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/8963"·title="">GH-8963</a>,·<a·href="https://github.com/erlang/otp/pull/8987"·title="">PR-8987</a></p></li><li><p>Fixed·a·bug·where·completion·of·'fun('·would·cause·the·shell·to·crash.</p><p>Own·Id:·OTP-19351·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9043"·title="">PR-9043</a></p></li><li><p>Fixed·a·bug·causing·the·shell·to·crash·while·trying·to·complete·an·expression·starting·with·a·'/'·or·a·variable·followed·by·'('·or·'/'.·E.g.·Foo/·and·Foo(.</p><p>Own·Id:·OTP-19361·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9078"·title="">PR-9078</a></p></li><li><p><a·href="zip.html#extract/2"><code·class="inline">zip:extract/2</code></a>·with·<code·class="inline">keep_old_files</code>·now·respects·the·<code·class="inline">cwd</code>·option.</p><p>Own·Id:·OTP-19370·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9097"·title="">PR-9097</a>,·<a·href="https://github.com/erlang/otp/issues/9087"·title="">GH-9087</a></p></li><li><p>Fixed·an·error·in·uri_string:percent_decode·spec</p><p>Own·Id:·OTP-19380·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/8755"·title="">GH-8755</a></p></li></ul><h3·id="improvements-and-new-features-1"·class="section-heading"> |
| 267 | ··<a·href="#improvements-and-new-features-1"·class="hover-link"> | 267 | ··<a·href="#improvements-and-new-features-1"·class="hover-link"> |
| 268 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 268 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 269 | ··</a> | 269 | ··</a> |
| 270 | ··<span·class="text">Improvements·and·New·Features</span> | 270 | ··<span·class="text">Improvements·and·New·Features</span> |
| 271 | </h3> | 271 | </h3> |
| 272 | <ul><li><p>Updated·shell·docs·to·display·the·type·spec,·that·is,·<code·class="inline">h(erlang,·min,·2)</code>)·now·prints·the·type·spec·and·documentation·in·the·shell.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="nf">h</span><span·class="p"·data-group-id=" | 272 | <ul><li><p>Updated·shell·docs·to·display·the·type·spec,·that·is,·<code·class="inline">h(erlang,·min,·2)</code>)·now·prints·the·type·spec·and·documentation·in·the·shell.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="nf">h</span><span·class="p"·data-group-id="5148830739-1">(</span><span·class="ss">erlang</span><span·class="p">,</span><span·class="ss">min</span><span·class="p">,</span><span·class="mi">2</span><span·class="p"·data-group-id="5148830739-1">)</span><span·class="p">.</span><span·class="w"> |
| 273 | </span><span·class="w"> | 273 | </span><span·class="w"> |
| 274 | ··</span><span·class="p">-</span><span·class="na">spec</span><span·class="w">·</span><span·class="nf">min</span><span·class="p"·data-group-id=" | 274 | ··</span><span·class="p">-</span><span·class="na">spec</span><span·class="w">·</span><span·class="nf">min</span><span·class="p"·data-group-id="5148830739-2">(</span><span·class="n">Term1</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Term2</span><span·class="p"·data-group-id="5148830739-2">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">Minimum</span><span·class="w"> |
| 275 | ···············</span><span·class="k">when</span><span·class="w">·</span><span·class="n">Term1</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">term</span><span·class="p"·data-group-id=" | 275 | ···············</span><span·class="k">when</span><span·class="w">·</span><span·class="n">Term1</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">term</span><span·class="p"·data-group-id="5148830739-3">(</span><span·class="p"·data-group-id="5148830739-3">)</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Term2</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·cla[·...·truncated·by·diffoscope;·len:·421,·SHA:·52af268aedec81202fcf59b6f2bd950d1bb8bdb0fd688e78f386c0568213ac46·...·]-5">)</span><span·class="p">.</span><span·class="w"> |
| 276 | ··</span><span·class="n">Returns</span><span·class="w">·</span><span·class="ss">the</span><span·class="w">·</span><span·class="ss">smallest</span><span·class="w">·</span><span·class="k">of</span><span·class="w">·</span><span·class="n">Term1</span><span·class="w">·</span><span·class="ow">and</span><span·class="w">·</span><span·class="n">Term2</span><span·class="p">.</span><span·class="w">·</span><span·class="n">If</span><span·class="w">·</span><span·class="ss">the</span><span·class="w">·</span><span·class="ss">terms</span><span·class="w">·</span><span·class="ss">compare</span><span·class="w">·</span><span·class="ss">equal</span><span·class="w">·</span><span·class="ss">with</span><span·class="w">·</span><span·class="ss">the</span><span·class="w">·</span><span·class="o">==</span><span·class="w">·</span><span·class="ss">operator</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Term1</span><span·class="w">·</span><span·class="ss">is</span><span·class="w">·</span><span·class="ss">returned</span><span·class="p">.</span></code></pre><p>Own·Id:·OTP-19234·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/8544"·title="">GH-8544</a>,·<a·href="https://github.com/erlang/otp/pull/8833"·title="">PR-8833</a></p></li><li><p>The·<a·href="../../../../lib/kernel-10.3/doc/html/file.html#t:io_device/0"><code·class="inline">file:io_device/0</code></a>·type·has·been·updated·to·clearly·show·the·difference·between·a·<code·class="inline">raw</code>·and·<code·class="inline">cooked</code>·IoDevice.</p><p>Own·Id:·OTP-19301·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8956"·title="">PR-8956</a></p></li><li><p>Added·<a·href="json.html#format_key_value_list/3"><code·class="inline">json:format_key_value_list/3</code></a>·and | 276 | ··</span><span·class="n">Returns</span><span·class="w">·</span><span·class="ss">the</span><span·class="w">·</span><span·class="ss">smallest</span><span·class="w">·</span><span·class="k">of</span><span·class="w">·</span><span·class="n">Term1</span><span·class="w">·</span><span·class="ow">and</span><span·class="w">·</span><span·class="n">Term2</span><span·class="p">.</span><span·class="w">·</span><span·class="n">If</span><span·class="w">·</span><span·class="ss">the</span><span·class="w">·</span><span·class="ss">terms</span><span·class="w">·</span><span·class="ss">compare</span><span·class="w">·</span><span·class="ss">equal</span><span·class="w">·</span><span·class="ss">with</span><span·class="w">·</span><span·class="ss">the</span><span·class="w">·</span><span·class="o">==</span><span·class="w">·</span><span·class="ss">operator</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Term1</span><span·class="w">·</span><span·class="ss">is</span><span·class="w">·</span><span·class="ss">returned</span><span·class="p">.</span></code></pre><p>Own·Id:·OTP-19234·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/8544"·title="">GH-8544</a>,·<a·href="https://github.com/erlang/otp/pull/8833"·title="">PR-8833</a></p></li><li><p>The·<a·href="../../../../lib/kernel-10.3/doc/html/file.html#t:io_device/0"><code·class="inline">file:io_device/0</code></a>·type·has·been·updated·to·clearly·show·the·difference·between·a·<code·class="inline">raw</code>·and·<code·class="inline">cooked</code>·IoDevice.</p><p>Own·Id:·OTP-19301·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8956"·title="">PR-8956</a></p></li><li><p>Added·<a·href="json.html#format_key_value_list/3"><code·class="inline">json:format_key_value_list/3</code></a>·and |
| 277 | <a·href="json.html#format_key_value_list_checked/3"><code·class="inline">json:format_key_value_list_checked/3</code></a>.</p><p>Own·Id:·OTP-19320·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8889"·title="">PR-8889</a></p></li><li><p>Improved·documentation·of·<a·href="../../../../erts-16.0/doc/html/time_correction.html#timers">timers</a>.</p><p>Own·Id:·OTP-19360·Aux·Id:·ERIERL-1149,·<a·href="https://github.com/erlang/otp/pull/9062"·title="">PR-9062</a></p></li><li><p>Added·logging·support·to·<a·href="io.html#t:user/0"><code·class="inline">io:user/0</code></a>,·<a·href="io.html#t:standard_io/0"><code·class="inline">io:standard_io/0</code></a>·and·<a·href="io.html#t:standard_error/0"><code·class="inline">io:standard_error/0</code></a>.·See·<a·href="io.html#setopts/2"><code·class="inline">io:setopts/2</code></a>·for·more·details.</p><p>Own·Id:·OTP-19372·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8947"·title="">PR-8947</a></p></li></ul><h2·id="stdlib-6-1-2"·class="section-heading"> | 277 | <a·href="json.html#format_key_value_list_checked/3"><code·class="inline">json:format_key_value_list_checked/3</code></a>.</p><p>Own·Id:·OTP-19320·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8889"·title="">PR-8889</a></p></li><li><p>Improved·documentation·of·<a·href="../../../../erts-16.0/doc/html/time_correction.html#timers">timers</a>.</p><p>Own·Id:·OTP-19360·Aux·Id:·ERIERL-1149,·<a·href="https://github.com/erlang/otp/pull/9062"·title="">PR-9062</a></p></li><li><p>Added·logging·support·to·<a·href="io.html#t:user/0"><code·class="inline">io:user/0</code></a>,·<a·href="io.html#t:standard_io/0"><code·class="inline">io:standard_io/0</code></a>·and·<a·href="io.html#t:standard_error/0"><code·class="inline">io:standard_error/0</code></a>.·See·<a·href="io.html#setopts/2"><code·class="inline">io:setopts/2</code></a>·for·more·details.</p><p>Own·Id:·OTP-19372·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8947"·title="">PR-8947</a></p></li></ul><h2·id="stdlib-6-1-2"·class="section-heading"> |
| 278 | ··<a·href="#stdlib-6-1-2"·class="hover-link"> | 278 | ··<a·href="#stdlib-6-1-2"·class="hover-link"> |
| 279 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 279 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 280 | ··</a> | 280 | ··</a> |
| 281 | ··<span·class="text">STDLIB·6.1.2</span> | 281 | ··<span·class="text">STDLIB·6.1.2</span> |
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| 348 | <a·href="binary.html#split/2"><code·class="inline">binary:split/2,3</code></a></p><p>The·call·<code·class="inline">binary:copy(<<1:1>>,·0)</code>·would·return·an·empty·binary·instead·of·raising·an·exception.·Similarly,·calls·to·<a·href="binary.html#part/2"><code·class="inline">binary:part/2,3</code></a>·attempting·to·extract·0·bytes·at·position·0·of·a·bitstring·would·return·an·empty·binary·instead·of·raising·an·exception.</p><p>Own·Id:·OTP-18743·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/7607"·title="">PR-7607</a>,·<a·href="https://github.com/erlang/otp/pull/7628"·title="">PR-7628</a></p></li><li><p>The·documentation·for·the·preprocessor·now·mentions·that·<code·class="inline">defined(Name)</code>·can·be·called·in·the·condition·for·an·<code·class="inline">-if</code>·or·<code·class="inline">-elif</code>·directive·to·test·whether·<code·class="inline">Name</code>·is·the·name·of·a·defined·macro.·(This·feature·was·implemented·in·OTP·21.)</p><p>If·a·function·call·in·an·<code·class="inline">-if</code>·or·<code·class="inline">-elif</code>·with·a·name·that·is·not·the·name·of·a·guard·BIF,·there·would·not·be·a·compilation·error,·but·would·instead·cause·the·lines·following·the·directive·to·be·skipped.·This·has·now·been·changed·to·be·a·compilation·error.</p><p><strong><em>·POTENTIAL·INCOMPATIBILITY·</em></strong></p><p>Own·Id:·OTP-18784·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/7706"·title="">GH-7706</a>,·<a·href="https://github.com/erlang/otp/pull/7726"·title="">PR-7726</a></p></li><li><p><code·class="inline">get_until</code>·requests·using·the·I/O·protocol·now·correctly·return·a·binary·or·list·when·<code·class="inline">eof</code>·is·the·last·item·returned·by·the·callback.</p><p>Own·Id:·OTP-18930·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/7993"·title="">PR-7993</a>,·<a·href="https://github.com/erlang/otp/issues/4992"·title="">GH-4992</a></p></li><li><p>The·error·handling·the·<code·class="inline">simple_one_for_one</code>·supervisor·has·been·enhanced.·A·transient·child·returning·<code·class="inline">ignore</code>·will·no·longer·cause·a·crash.</p><p>Also,·automatic·shutdown·has·been·disabled·because·it·does·not·make·sense·for·this·supervisor·type.·That·is·was·allowed·is·considered·a·bug.·Therefore,·we·don't·consider·this·an·incompatible·change.</p><p><strong><em>·POTENTIAL·INCOMPATIBILITY·</em></strong></p><p>Own·Id:·OTP-19029·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8230"·title="">PR-8230</a></p></li><li><p>Fix·shell·expansion·to·not·crash·when·expanding·a·map·with·non-atom·keys·and·to·not·list·zero·arity·functions·when·an·argument·has·been·given.</p><p>Own·Id:·OTP-19073·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8375"·title="">PR-8375</a>,·<a·href="https://github.com/erlang/otp/issues/8366"·title="">GH-8366</a>,·<a·href="https://github.com/erlang/otp/issues/8365"·title="">GH-8365</a>,·<a·href="https://github.com/erlang/otp/issues/8364"·title="">GH-8364</a></p></li></ul><h3·id="improvements-and-new-features-3"·class="section-heading"> | 348 | <a·href="binary.html#split/2"><code·class="inline">binary:split/2,3</code></a></p><p>The·call·<code·class="inline">binary:copy(<<1:1>>,·0)</code>·would·return·an·empty·binary·instead·of·raising·an·exception.·Similarly,·calls·to·<a·href="binary.html#part/2"><code·class="inline">binary:part/2,3</code></a>·attempting·to·extract·0·bytes·at·position·0·of·a·bitstring·would·return·an·empty·binary·instead·of·raising·an·exception.</p><p>Own·Id:·OTP-18743·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/7607"·title="">PR-7607</a>,·<a·href="https://github.com/erlang/otp/pull/7628"·title="">PR-7628</a></p></li><li><p>The·documentation·for·the·preprocessor·now·mentions·that·<code·class="inline">defined(Name)</code>·can·be·called·in·the·condition·for·an·<code·class="inline">-if</code>·or·<code·class="inline">-elif</code>·directive·to·test·whether·<code·class="inline">Name</code>·is·the·name·of·a·defined·macro.·(This·feature·was·implemented·in·OTP·21.)</p><p>If·a·function·call·in·an·<code·class="inline">-if</code>·or·<code·class="inline">-elif</code>·with·a·name·that·is·not·the·name·of·a·guard·BIF,·there·would·not·be·a·compilation·error,·but·would·instead·cause·the·lines·following·the·directive·to·be·skipped.·This·has·now·been·changed·to·be·a·compilation·error.</p><p><strong><em>·POTENTIAL·INCOMPATIBILITY·</em></strong></p><p>Own·Id:·OTP-18784·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/7706"·title="">GH-7706</a>,·<a·href="https://github.com/erlang/otp/pull/7726"·title="">PR-7726</a></p></li><li><p><code·class="inline">get_until</code>·requests·using·the·I/O·protocol·now·correctly·return·a·binary·or·list·when·<code·class="inline">eof</code>·is·the·last·item·returned·by·the·callback.</p><p>Own·Id:·OTP-18930·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/7993"·title="">PR-7993</a>,·<a·href="https://github.com/erlang/otp/issues/4992"·title="">GH-4992</a></p></li><li><p>The·error·handling·the·<code·class="inline">simple_one_for_one</code>·supervisor·has·been·enhanced.·A·transient·child·returning·<code·class="inline">ignore</code>·will·no·longer·cause·a·crash.</p><p>Also,·automatic·shutdown·has·been·disabled·because·it·does·not·make·sense·for·this·supervisor·type.·That·is·was·allowed·is·considered·a·bug.·Therefore,·we·don't·consider·this·an·incompatible·change.</p><p><strong><em>·POTENTIAL·INCOMPATIBILITY·</em></strong></p><p>Own·Id:·OTP-19029·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8230"·title="">PR-8230</a></p></li><li><p>Fix·shell·expansion·to·not·crash·when·expanding·a·map·with·non-atom·keys·and·to·not·list·zero·arity·functions·when·an·argument·has·been·given.</p><p>Own·Id:·OTP-19073·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8375"·title="">PR-8375</a>,·<a·href="https://github.com/erlang/otp/issues/8366"·title="">GH-8366</a>,·<a·href="https://github.com/erlang/otp/issues/8365"·title="">GH-8365</a>,·<a·href="https://github.com/erlang/otp/issues/8364"·title="">GH-8364</a></p></li></ul><h3·id="improvements-and-new-features-3"·class="section-heading"> |
| 349 | ··<a·href="#improvements-and-new-features-3"·class="hover-link"> | 349 | ··<a·href="#improvements-and-new-features-3"·class="hover-link"> |
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| 138 | ··<a·href="#module-notes"·class="hover-link"> | 138 | ··<a·href="#module-notes"·class="hover-link"> |
| 139 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 139 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 140 | ··</a> | 140 | ··</a> |
| 141 | ··<span·class="text">Notes</span> | 141 | ··<span·class="text">Notes</span> |
| 142 | </h2> | 142 | </h2> |
| 143 | <p><a·href=""·id="notes"></a></p><p>Functions·<a·href="#append/3"><code·class="inline">append/3</code></a>·and·<a·href="#append_list/3"><code·class="inline">append_list/3</code></a>·are | 143 | <p><a·href=""·id="notes"></a></p><p>Functions·<a·href="#append/3"><code·class="inline">append/3</code></a>·and·<a·href="#append_list/3"><code·class="inline">append_list/3</code></a>·are |
| 144 | included·so·that·keyed·values·can·be·stored·in·a·list·<em>accumulator</em>,·for | 144 | included·so·that·keyed·values·can·be·stored·in·a·list·<em>accumulator</em>,·for |
| 145 | example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="n">D0</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">orddict</span><span·class="p">:</span><span·class="nf">new</span><span·class="p"·data-group-id=" | 145 | example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="n">D0</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">orddict</span><span·class="p">:</span><span·class="nf">new</span><span·class="p"·data-group-id="3433544836-1">(</span><span·class="p"·data-group-id="3433544836-1">)</span><span·class="p">,</span><span·class="w"> |
| 146 | ··</span><span·class="n">D1</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">orddict</span><span·class="p">:</span><span·class="nf">store</span><span·class="p"·data-group-id=" | 146 | ··</span><span·class="n">D1</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">orddict</span><span·class="p">:</span><span·class="nf">store</span><span·class="p"·data-group-id="3433544836-2">(</span><span·class="ss">files</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3433544836-3">[</span><span·class="p"·data-group-id="3433544836-3">]</span><span·class="p">,</span><span·class="w">·</span><sp[·...·truncated·by·diffoscope;·len:·63,·SHA:·877c3be27f9e0bbfbfc6ef84231867e381540fbf54ab5b6c2a92a0359b4b7b3a·...·]-2">)</span><span·class="p">,</span><span·class="w"> |
| 147 | ··</span><span·class="n">D2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">orddict</span><span·class="p">:</span><span·class="nf">append</span><span·class="p"·data-group-id=" | 147 | ··</span><span·class="n">D2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">orddict</span><span·class="p">:</span><span·class="nf">append</span><span·class="p"·data-group-id="3433544836-4">(</span><span·class="ss">files</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">f1</span><span·class="p">,</span><span·class="w">·</span><span·class="n">D1</span><span·class="p"·data-group-id="3433544836-4">)</span><span·class="p">,</span><span·class="w"> |
| 148 | ··</span><span·class="n">D3</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">orddict</span><span·class="p">:</span><span·class="nf">append</span><span·class="p"·data-group-id=" | 148 | ··</span><span·class="n">D3</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">orddict</span><span·class="p">:</span><span·class="nf">append</span><span·class="p"·data-group-id="3433544836-5">(</span><span·class="ss">files</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">f2</span><span·class="p">,</span><span·class="w">·</span><span·class="n">D2</span><span·class="p"·data-group-id="3433544836-5">)</span><span·class="p">,</span><span·class="w"> |
| 149 | ··</span><span·class="n">D4</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">orddict</span><span·class="p">:</span><span·class="nf">append</span><span·class="p"·data-group-id=" | 149 | ··</span><span·class="n">D4</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">orddict</span><span·class="p">:</span><span·class="nf">append</span><span·class="p"·data-group-id="3433544836-6">(</span><span·class="ss">files</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">f3</span><span·class="p">,</span><span·class="w">·</span><span·class="n">D3</span><span·class="p"·data-group-id="3433544836-6">)</span><span·class="p">,</span><span·class="w"> |
| 150 | ··</span><span·class="nc">orddict</span><span·class="p">:</span><span·class="nf">fetch</span><span·class="p"·data-group-id=" | 150 | ··</span><span·class="nc">orddict</span><span·class="p">:</span><span·class="nf">fetch</span><span·class="p"·data-group-id="3433544836-7">(</span><span·class="ss">files</span><span·class="p">,</span><span·class="w">·</span><span·class="n">D4</span><span·class="p"·data-group-id="3433544836-7">)</span><span·class="p">.</span><span·class="w"> |
| 151 | </span><span·class="p"·data-group-id=" | 151 | </span><span·class="p"·data-group-id="3433544836-8">[</span><span·class="ss">f1</span><span·class="p">,</span><span·class="ss">f2</span><span·class="p">,</span><span·class="ss">f3</span><span·class="p"·data-group-id="3433544836-8">]</span></code></pre><p>This·saves·the·trouble·of·first·fetching·a·keyed·value,·appending·a·new·value·to |
| 152 | the·list·of·stored·values,·and·storing·the·result.</p><p>Function·<a·href="#fetch/2"><code·class="inline">fetch/2</code></a>·is·to·be·used·if·the·key·is·known·to·be·in·the | 152 | the·list·of·stored·values,·and·storing·the·result.</p><p>Function·<a·href="#fetch/2"><code·class="inline">fetch/2</code></a>·is·to·be·used·if·the·key·is·known·to·be·in·the |
| 153 | dictionary,·otherwise·function·<a·href="#find/2"><code·class="inline">find/2</code></a>.</p><h2·id="module-see-also"·class="section-heading"> | 153 | dictionary,·otherwise·function·<a·href="#find/2"><code·class="inline">find/2</code></a>.</p><h2·id="module-see-also"·class="section-heading"> |
| 154 | ··<a·href="#module-see-also"·class="hover-link"> | 154 | ··<a·href="#module-see-also"·class="hover-link"> |
| 155 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 155 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 156 | ··</a> | 156 | ··</a> |
| 157 | ··<span·class="text">See·Also</span> | 157 | ··<span·class="text">See·Also</span> |
| 158 | </h2> | 158 | </h2> |
| Offset 527, 24 lines modified | Offset 527, 24 lines modified | ||
| 527 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·append(Key,·Value,·Orddict1)·->·Orddict2 | 527 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·append(Key,·Value,·Orddict1)·->·Orddict2 |
| 528 | ················when·Orddict1·::·<a·href="#t:orddict/2">orddict</a>(Key,·Value),·Orddict2·::·<a·href="#t:orddict/2">orddict</a>(Key,·Value).</pre> | 528 | ················when·Orddict1·::·<a·href="#t:orddict/2">orddict</a>(Key,·Value),·Orddict2·::·<a·href="#t:orddict/2">orddict</a>(Key,·Value).</pre> |
| 529 | ······</div> | 529 | ······</div> |
| 530 | <p>Appends·a·new·<code·class="inline">Value</code>·to·the·current·list·of·values·associated·with·<code·class="inline">Key</code>.·An | 530 | <p>Appends·a·new·<code·class="inline">Value</code>·to·the·current·list·of·values·associated·with·<code·class="inline">Key</code>.·An |
| 531 | exception·is·generated·if·the·initial·value·associated·with·<code·class="inline">Key</code>·is·not·a·list | 531 | exception·is·generated·if·the·initial·value·associated·with·<code·class="inline">Key</code>·is·not·a·list |
| 532 | of·values.</p><p>See·also·section·<a·href="orddict.html#module-notes">Notes</a>.</p><p><em>Example·1:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">OrdDict1</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">orddict</span><span·class="p">:</span><span·class="nf">from_list</span><span·class="p"·data-group-id="2128638147-1">(</span><span·class="p"·data-group-id="2128638147-2">[</span><span·class="p"·data-group-id="2128638147-3">{</span><span·class="ss">x</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2128638147-4">[</span><span·class="p"·data-group-id="2128638147-4">]</span><span·class="p"·data-group-id="2128638147-3">}</span><span·class="p"·data-group-id="2128638147-2">]</span><span·class="p"·data-group-id="2128638147-1">)</span><span·class="p">.</span><span·class="w"> | ||
| 533 | 532 | of·values.</p><p>See·also·section·<a·href="orddict.html#module-notes">Notes</a>.</p><p><em>Example·1:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">OrdDict1</span><span·class="w">·</span>[·...·truncated·by·diffoscope;·len:·671,·SHA:·1a1cfb0a27da1ba224506d58f1fc120204b33daab38e43f9504cc51bf844a906·...·]"> | |
| 533 | </span><span·class="p"·data-group-id="0141499040-5">[</span><span·class="p"·data-group-id="0141499040-6">{</span><span·class="ss">x</span><span·class="p">,</span><span·class="p"·data-group-id="0141499040-7">[</span><span·class="p"·data-group-id="0141499040-7">]</span><span·class="p"·data-group-id="0141499040-6">}</span><span·class="p"·data-group-id="0141499040-5">]</span><span·class="gp·unselectable"> | ||
| 534 | 2>·</span><span·class="n">OrdDict2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">orddict</span><span·class="p">:</span><span·class="nf">append</span><span·class="p"·data-group-id=" | 534 | 2>·</span><span·class="n">OrdDict2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">orddict</span><span·class="p">:</span><span·class="nf">append</span><span·class="p"·data-group-id="0141499040-8">(</span><span·class="ss">x</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="n">OrdDict1</span><span·class="p"·data-group-id="0141499040-8">)</span><span·class="p">.</span><span·class="w"> |
| 535 | </span><span·class="p"·data-group-id=" | 535 | </span><span·class="p"·data-group-id="0141499040-9">[</span><span·class="p"·data-group-id="0141499040-10">{</span><span·class="ss">x</span><span·class="p">,</span><span·class="p"·data-group-id="0141499040-11">[</span><span·class="mi">1</span><span·class="p"·data-group-id="0141499040-11">]</spa[·...·truncated·by·diffoscope;·len:·97,·SHA:·c6a40e00c5155bdb6df6eed3e2125b3a697f41afea73bcfc8abf2217b39624de·...·]-9">]</span><span·class="gp·unselectable"> |
| 536 | 3>·</span><span·class="n">OrdDict3</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">orddict</span><span·class="p">:</span><span·class="nf">append</span><span·class="p"·data-group-id=" | 536 | 3>·</span><span·class="n">OrdDict3</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">orddict</span><span·class="p">:</span><span·class="nf">append</span><span·class="p"·data-group-id="0141499040-12">(</span><span·class="ss">x</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">2</span><span·class="p">,</span><span·class="w">·</span><span·class="n">OrdDict2</span><span·class="p"·data-group-id="0141499040-12">)</span><span·class="p">.</span><span·class="w"> |
| 537 | </span><span·class="p"·data-group-id=" | 537 | </span><span·class="p"·data-group-id="0141499040-13">[</span><span·class="p"·data-group-id="0141499040-14">{</span><span·class="ss">x</span><span·class="p">,</span><span·class="p"·data-group-id="0141499040-15">[</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">2</span><s[·...·truncated·by·diffoscope;·len:·147,·SHA:·8aec2e90a275aad5f3749b70b5acdcc9c0d2429affe5a9c4f077ee08ba290080·...·]-13">]</span><span·class="gp·unselectable"> |
| 538 | 4>·</span><span·class="nc">orddict</span><span·class="p">:</span><span·class="nf">append</span><span·class="p"·data-group-id=" | 538 | 4>·</span><span·class="nc">orddict</span><span·class="p">:</span><span·class="nf">append</span><span·class="p"·data-group-id="0141499040-16">(</span><span·class="ss">y</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">3</span><span·class="p">,</span><span·class="w">·</span><span·class="n">OrdDict3</span><span·class="p"·data-group-id="0141499040-16">)</span><span·class="p">.</span><span·class="w"> |
| 539 | </span><span·class="p"·data-group-id="2128638147-17">[</span><span·class="p"·data-group-id="2128638147-18">{</span><span·class="ss">x</span><span·class="p">,</span><span·class="p"·data-group-id="2128638147-19">[</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">2</span><span·class="p"·data-group-id="2128638147-19">]</span><span·class="p"·data-group-id="2128638147-18">}</span><span·class="p">,</span><span·class="p"·data-group-id="2128638147-20">{</span><span·class="ss">y</span><span·class="p">,</span><span·class="p"·data-group-id="2128638147-21">[</span><span·class="mi">3</span><span·class="p"·data-group-id="2128638147-21">]</span><span·class="p"·data-group-id="2128638147-20">}</span><span·class="p"·data-group-id="2128638147-17">]</span></code></pre><p><em>Example·2:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">OrdDict1</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">orddict</span><span·class="p">:</span><span·class="nf">from_list</span><span·class="p"·data-group-id="9634720273-1">(</span><span·class="p"·data-group-id="9634720273-2">[</span><span·class="p"·data-group-id="9634720273-3">{</span><span·class="ss">a</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">no_list</span><span·class="p"·data-group-id="9634720273-3">}</span><span·class="p"·data-group-id="9634720273-2">]</span><span·class="p"·data-group-id="9634720273-1">)</span><span·class="p">.</span><span·class="w"> | ||
| 540 | </span><span·class="p"·data-group-id=" | 539 | </span><span·class="p"·data-group-id="0141499040-17">[</span><span·class="p"·data-group-id="0141499040-18">{</span><span·class="ss">x</span><span·class="p">,</span><span·class="p"·data-group-id="0141499040-19">[</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">2</span><s[·...·truncated·by·diffoscope;·len:·1255,·SHA:·434bd6031cfb42d11a1c476f604b5affe694f619aa423143e0a64ae01603bfb7·...·]"> |
| 540 | </span><span·class="p"·data-group-id="8265972956-4">[</span><span·class="p"·data-group-id="8265972956-5">{</span><span·class="ss">a</span><span·class="p">,</span><span·class="ss">no_list</span><span·class="p"·data-group-id="8265972956-5">}</span><span·class="p"·data-group-id="8265972956-4">]</span><span·class="gp·unselectable"> | ||
| 541 | 2>·</span><span·class="nc">orddict</span><span·class="p">:</span><span·class="nf">append</span><span·class="p"·data-group-id=" | 541 | 2>·</span><span·class="nc">orddict</span><span·class="p">:</span><span·class="nf">append</span><span·class="p"·data-group-id="8265972956-6">(</span><span·class="ss">a</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="n">OrdDict1</span><span·class="p"·data-group-id="8265972956-6">)</span><span·class="p">.</span><span·class="w"> |
| 542 | </span><span·class="gt">**·exception·error:·bad·argument | 542 | </span><span·class="gt">**·exception·error:·bad·argument |
| 543 | ·····in·operator··++/2 | 543 | ·····in·operator··++/2 |
| 544 | ········called·as·no_list·++·[1]</span></code></pre> | 544 | ········called·as·no_list·++·[1]</span></code></pre> |
| 545 | ··</section> | 545 | ··</section> |
| 546 | </section> | 546 | </section> |
| 547 | <section·class="detail"·id="append_list/3"> | 547 | <section·class="detail"·id="append_list/3"> |
| Offset 571, 20 lines modified | Offset 571, 20 lines modified | ||
| 571 | ·························Orddict1·::·<a·href="#t:orddict/2">orddict</a>(Key,·Value), | 571 | ·························Orddict1·::·<a·href="#t:orddict/2">orddict</a>(Key,·Value), |
| 572 | ·························Orddict2·::·<a·href="#t:orddict/2">orddict</a>(Key,·Value).</pre> | 572 | ·························Orddict2·::·<a·href="#t:orddict/2">orddict</a>(Key,·Value).</pre> |
| 573 | ······</div> | 573 | ······</div> |
| 574 | <p>Appends·a·list·of·values·<code·class="inline">ValList</code>·to·the·current·list·of·values·associated·with | 574 | <p>Appends·a·list·of·values·<code·class="inline">ValList</code>·to·the·current·list·of·values·associated·with |
| 575 | <code·class="inline">Key</code>.·An·exception·is·generated·if·the·initial·value·associated·with·<code·class="inline">Key</code>·is | 575 | <code·class="inline">Key</code>.·An·exception·is·generated·if·the·initial·value·associated·with·<code·class="inline">Key</code>·is |
| 576 | not·a·list·of·values.</p><p>See·also·section·<a·href="orddict.html#module-notes">Notes</a>.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">OrdDict1</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">orddict</span><span·class="p">:</span><span·class="nf">from_list</span><span·class="p"·data-group-id="4803304969-1">(</span><span·class="p"·data-group-id="4803304969-2">[</span><span·class="p"·data-group-id="4803304969-3">{</span><span·class="ss">x</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4803304969-4">[</span><span·class="p"·data-group-id="4803304969-4">]</span><span·class="p"·data-group-id="4803304969-3">}</span><span·class="p"·data-group-id="4803304969-2">]</span><span·class="p"·data-group-id="4803304969-1">)</span><span·class="p">.</span><span·class="w"> | ||
| 577 | 576 | not·a·list·of·values.</p><p>See·also·section·<a·href="orddict.html#module-notes">Notes</a>.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">OrdDict1</span><span·class="w"[·...·truncated·by·diffoscope;·len:·680,·SHA:·11f1a65b68bc3e733189d236446d12bdb32b1f6d2ca3c9abe93afa5bd9d4a729·...·]"> | |
| 577 | </span><span·class="p"·data-group-id="9084191835-5">[</span><span·class="p"·data-group-id="9084191835-6">{</span><span·class="ss">x</span><span·class="p">,</span><span·class="p"·data-group-id="9084191835-7">[</span><span·class="p"·data-group-id="9084191835-7">]</span><span·class="p"·data-group-id="9084191835-6">}</span><span·class="p"·data-group-id="9084191835-5">]</span><span·class="gp·unselectable"> | ||
| 578 | 2>·</span><span·class="n">OrdDict2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">orddict</span><span·class="p">:</span><span·class="nf">append_list</span><span·class="p"·data-group-id=" | 578 | 2>·</span><span·class="n">OrdDict2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">orddict</span><span·class="p">:</span><span·class="nf">append_list</span><span·class="p"·data-group-id="9084191835-8">(</span><span·class="ss">x</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9084191835-9">[</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">2</span><span·class="p"·data-group-id="908[·...·truncated·by·diffoscope;·len:·139,·SHA:·806f86b7e5d1576f90d6fbc6951ab2fa644cbac990ef5bff8636818cfdbb1f32·...·]-8">)</span><span·class="p">.</span><span·class="w"> |
| 579 | </span><span·class="p"·data-group-id=" | 579 | </span><span·class="p"·data-group-id="9084191835-10">[</span><span·class="p"·data-group-id="9084191835-11">{</span><span·class="ss">x</span><span·class="p">,</span><span·class="p"·data-group-id="9084191835-12">[</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">2</span><s[·...·truncated·by·diffoscope;·len:·147,·SHA:·d415ff59fcbb27af953e0337416f427bd8c36c82c92ce7f4a5cbc97edbbbc1c6·...·]-10">]</span><span·class="gp·unselectable"> |
| 580 | 3>·</span><span·class="n">OrdDict3</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">orddict</span><span·class="p">:</span><span·class="nf">append_list</span><span·class="p"·data-group-id=" | 580 | 3>·</span><span·class="n">OrdDict3</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">orddict</span><span·class="p">:</span><span·class="nf">append_list</span><span·class="p"·data-group-id="9084191835-13">(</span><span·class="ss">y</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9084191835-14">[</span><span·class="mi">3</span><span·class="p">,</span><span·class="mi">4</span><span·class="p"·data-group-id="9[·...·truncated·by·diffoscope;·len:·142,·SHA:·9af55219dc72bb6c5ac163eb805a802459b7f478621bfe07e6f74f3c04183aeb·...·]-13">)</span><span·class="p">.</span><span·class="w"> |
| 581 | </span><span·class="p"·data-group-id=" | 581 | </span><span·class="p"·data-group-id="9084191835-15">[</span><span·class="p"·data-group-id="9084191835-16">{</span><span·class="ss">x</span><span·class="p">,</span><span·class="p"·data-group-id="9084191835-17">[</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">2</span><s[·...·truncated·by·diffoscope;·len:·510,·SHA:·ce3dabfd216e971a213a334acfa6f351fe6b0dfc799413acc2e035d8c1ea60e0·...·]-15">]</span></code></pre> |
| 582 | ··</section> | 582 | ··</section> |
| 583 | </section> | 583 | </section> |
| 584 | <section·class="detail"·id="erase/2"> | 584 | <section·class="detail"·id="erase/2"> |
| 585 | ··<div·class="detail-header"> | 585 | ··<div·class="detail-header"> |
| 586 | ····<a·href="#erase/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 586 | ····<a·href="#erase/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 587 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 587 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 603, 18 lines modified | Offset 603, 18 lines modified | ||
| 603 | ······<div·class="specs"> | 603 | ······<div·class="specs"> |
| 604 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·erase(Key,·Orddict1)·->·Orddict2 | 604 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·erase(Key,·Orddict1)·->·Orddict2 |
| 605 | ···············when·Orddict1·::·<a·href="#t:orddict/2">orddict</a>(Key,·Value),·Orddict2·::·<a·href="#t:orddict/2">orddict</a>(Key,·Value).</pre> | 605 | ···············when·Orddict1·::·<a·href="#t:orddict/2">orddict</a>(Key,·Value),·Orddict2·::·<a·href="#t:orddict/2">orddict</a>(Key,·Value).</pre> |
| 606 | ······</div> | 606 | ······</div> |
| 607 | <p>Erases·all·items·with·a·specified·key·from·a·dictionary.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">OrdDict1</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">orddict</span><span·class="p">:</span><span·class="nf">from_list</span><span·class="p"·data-group-id=" | 607 | <p>Erases·all·items·with·a·specified·key·from·a·dictionary.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">OrdDict1</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">orddict</span><span·class="p">:</span><span·class="nf">from_list</span><span·class="p"·data-group-id="6024464338-1">(</span><span·class="p"·data-group-id="6024464338-2">[</span><span·class="p"·data-group-id="6024464338-3">{</span><span·class="ss">a</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">1</span><span·class="p"·data-group-id=[·...·truncated·by·diffoscope;·len:·369,·SHA:·b55067c085bad8b405dba6b64704bf1602c584b0eb02c5fb534eaca889b4b46c·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 608 | </span><span·class="p"·data-group-id=" | 608 | </span><span·class="p"·data-group-id="6024464338-5">[</span><span·class="p"·data-group-id="6024464338-6">{</span><span·class="ss">a</span><span·class="p">,</span><span·class="mi">1</span><span·class="p"·data-group-id="6024464338-6">}</span><span·class="p">,</span><span·class="p"·data-group-id=[·...·truncated·by·diffoscope;·len:·191,·SHA:·64ecc17a625e9f438945a24c54d821d5d86bc78f0962a94383aa4558cbc2be43·...·]-5">]</span><span·class="gp·unselectable"> |
| 609 | 2>·</span><span·class="nc">orddict</span><span·class="p">:</span><span·class="nf">erase</span><span·class="p"·data-group-id=" | 609 | 2>·</span><span·class="nc">orddict</span><span·class="p">:</span><span·class="nf">erase</span><span·class="p"·data-group-id="6024464338-8">(</span><span·class="ss">a</span><span·class="p">,</span><span·class="w">·</span><span·class="n">OrdDict1</span><span·class="p"·data-group-id="6024464338-8">)</span><span·class="p">.</span><span·class="w"> |
| 610 | </span><span·class="p"·data-group-id=" | 610 | </span><span·class="p"·data-group-id="6024464338-9">[</span><span·class="p"·data-group-id="6024464338-10">{</span><span·class="ss">b</span><span·class="p">,</span><span·class="mi">2</span><span·class="p"·data-group-id="6024464338-10">}</span><span·class="p"·data-group-id="6024464338-9">]</span></code></pre> |
| 611 | ··</section> | 611 | ··</section> |
| 612 | </section> | 612 | </section> |
| 613 | <section·class="detail"·id="fetch/2"> | 613 | <section·class="detail"·id="fetch/2"> |
| 614 | ··<div·class="detail-header"> | 614 | ··<div·class="detail-header"> |
| 615 | ····<a·href="#fetch/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 615 | ····<a·href="#fetch/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 616 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 616 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
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| 634 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·fetch(Key,·Orddict)·->·Value·when·Orddict·::·<a·href="#t:orddict/2">orddict</a>(Key,·Value).</pre> | 634 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·fetch(Key,·Orddict)·->·Value·when·Orddict·::·<a·href="#t:orddict/2">orddict</a>(Key,·Value).</pre> |
| 635 | ······</div> | 635 | ······</div> |
| 636 | <p>Returns·the·value·associated·with·<code·class="inline">Key</code>·in·dictionary·<code·class="inline">Orddict</code>.·This·function | 636 | <p>Returns·the·value·associated·with·<code·class="inline">Key</code>·in·dictionary·<code·class="inline">Orddict</code>.·This·function |
| 637 | assumes·that·the·<code·class="inline">Key</code>·is·present·in·the·dictionary.·An·exception·is·generated | 637 | assumes·that·the·<code·class="inline">Key</code>·is·present·in·the·dictionary.·An·exception·is·generated |
| 638 | if·<code·class="inline">Key</code>·is·not·in·the·dictionary.</p><p>See·also·section·<a·href="orddict.html#module-notes">Notes</a>.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">OrdDict1</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">orddict</span><span·class="p">:</span><span·class="nf">from_list</span><span·class="p"·data-group-id="9 | 638 | if·<code·class="inline">Key</code>·is·not·in·the·dictionary.</p><p>See·also·section·<a·href="orddict.html#module-notes">Notes</a>.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">OrdDict1</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">orddict</span><span·class="p">:</span><span·class="nf">from_list</span><span·class="p"·data-group-id="2968294237-1">(</span><span·class="p"·data-group-id="2968294237-2">[</span><span·class="p"·data-group-id="2968294237-3">{</span><span·class="ss">a</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">1</span><span·class="p"·data-group-id=[·...·truncated·by·diffoscope;·len:·369,·SHA:·6c63e618046bf457b02da9aebcb1e59f394b708e1090132ad07e50266c2c69e0·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 639 | </span><span·class="p"·data-group-id="9 | 639 | </span><span·class="p"·data-group-id="2968294237-5">[</span><span·class="p"·data-group-id="2968294237-6">{</span><span·class="ss">a</span><span·class="p">,</span><span·class="mi">1</span><span·class="p"·data-group-id="2968294237-6">}</span><span·class="p">,</span><span·class="p"·data-group-id=[·...·truncated·by·diffoscope;·len:·191,·SHA:·c7d3e3c38e6759c129df412e24fde8d67005507c63f2e7e17914992e30272799·...·]-5">]</span><span·class="gp·unselectable"> |
| 640 | 2>·</span><span·class="nc">orddict</span><span·class="p">:</span><span·class="nf">fetch</span><span·class="p"·data-group-id="9 | 640 | 2>·</span><span·class="nc">orddict</span><span·class="p">:</span><span·class="nf">fetch</span><span·class="p"·data-group-id="2968294237-8">(</span><span·class="ss">a</span><span·class="p">,</span><span·class="w">·</span><span·class="n">OrdDict1</span><span·class="p"·data-group-id="2968294237-8">)</span><span·class="p">.</span><span·class="w"> |
| 641 | </span><span·class="mi">1</span><span·class="gp·unselectable"> | 641 | </span><span·class="mi">1</span><span·class="gp·unselectable"> |
| 642 | 3>·</span><span·class="nc">orddict</span><span·class="p">:</span><span·class="nf">fetch</span><span·class="p"·data-group-id="9 | 642 | 3>·</span><span·class="nc">orddict</span><span·class="p">:</span><span·class="nf">fetch</span><span·class="p"·data-group-id="2968294237-9">(</span><span·class="ss">missing</span><span·class="p">,</span><span·class="w">·</span><span·class="n">OrdDict1</span><span·class="p"·data-group-id="2968294237-9">)</span><span·class="p">.</span><span·class="w"> |
| 643 | </span><span·class="gt">**·exception·error:·no·function·clause·matching·orddict:fetch(missing,[])</span></code></pre> | 643 | </span><span·class="gt">**·exception·error:·no·function·clause·matching·orddict:fetch(missing,[])</span></code></pre> |
| 644 | ··</section> | 644 | ··</section> |
| 645 | </section> | 645 | </section> |
| 646 | <section·class="detail"·id="fetch_keys/1"> | 646 | <section·class="detail"·id="fetch_keys/1"> |
| 647 | ··<div·class="detail-header"> | 647 | ··<div·class="detail-header"> |
| 648 | ····<a·href="#fetch_keys/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 648 | ····<a·href="#fetch_keys/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
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| 665 | ······<div·class="specs"> | 665 | ······<div·class="specs"> |
| 666 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·fetch_keys(Orddict)·->·Keys·when·Orddict·::·<a·href="#t:orddict/2">orddict</a>(Key,·Value·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>()),·Keys·::·[Key].</pre> | 666 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·fetch_keys(Orddict)·->·Keys·when·Orddict·::·<a·href="#t:orddict/2">orddict</a>(Key,·Value·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>()),·Keys·::·[Key].</pre> |
| 667 | ······</div> | 667 | ······</div> |
| 668 | <p>Returns·a·list·of·all·keys·in·a·dictionary.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">OrdDict1</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">orddict</span><span·class="p">:</span><span·class="nf">from_list</span><span·class="p"·data-group-id=" | 668 | <p>Returns·a·list·of·all·keys·in·a·dictionary.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">OrdDict1</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">orddict</span><span·class="p">:</span><span·class="nf">from_list</span><span·class="p"·data-group-id="0507173550-1">(</span><span·class="p"·data-group-id="0507173550-2">[</span><span·class="p"·data-group-id="0507173550-3">{</span><span·class="ss">a</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">1</span><span·class="p"·data-group-id=[·...·truncated·by·diffoscope;·len:·368,·SHA:·7112a6e30db2cd272819a8389837677764e706e398f9d97a1b1e2dbc4f72e745·...·]0-1">)</span><span·class="p">.</span><span·class="w"> |
| 669 | </span><span·class="p"·data-group-id=" | 669 | </span><span·class="p"·data-group-id="0507173550-5">[</span><span·class="p"·data-group-id="0507173550-6">{</span><span·class="ss">a</span><span·class="p">,</span><span·class="mi">1</span><span·class="p"·data-group-id="0507173550-6">}</span><span·class="p">,</span><span·class="p"·data-group-id=[·...·truncated·by·diffoscope;·len:·190,·SHA:·5981a222ceb55c05bf519a49a16f3244c59899d1c3e6defc3e8c007b8bb9ce1b·...·]0-5">]</span><span·class="gp·unselectable"> |
| 670 | 2>·</span><span·class="nc">orddict</span><span·class="p">:</span><span·class="nf">fetch_keys</span><span·class="p"·data-group-id=" | 670 | 2>·</span><span·class="nc">orddict</span><span·class="p">:</span><span·class="nf">fetch_keys</span><span·class="p"·data-group-id="0507173550-8">(</span><span·class="n">OrdDict1</span><span·class="p"·data-group-id="0507173550-8">)</span><span·class="p">.</span><span·class="w"> |
| 671 | </span><span·class="p"·data-group-id=" | 671 | </span><span·class="p"·data-group-id="0507173550-9">[</span><span·class="ss">a</span><span·class="p">,</span><span·class="ss">b</span><span·class="p"·data-group-id="0507173550-9">]</span></code></pre> |
| 672 | ··</section> | 672 | ··</section> |
| 673 | </section> | 673 | </section> |
| 674 | <section·class="detail"·id="filter/2"> | 674 | <section·class="detail"·id="filter/2"> |
| 675 | ··<div·class="detail-header"> | 675 | ··<div·class="detail-header"> |
| 676 | ····<a·href="#filter/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 676 | ····<a·href="#filter/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
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| 468 | <p>Returns·a·new·ordered·set·formed·from·<code·class="inline">Ordset1</code>·with·<code·class="inline">Element</code>·inserted.</p><h2·id="add_element/2-examples"·class="section-heading"> | 468 | <p>Returns·a·new·ordered·set·formed·from·<code·class="inline">Ordset1</code>·with·<code·class="inline">Element</code>·inserted.</p><h2·id="add_element/2-examples"·class="section-heading"> |
| 469 | ··<a·href="#add_element/2-examples"·class="hover-link"> | 469 | ··<a·href="#add_element/2-examples"·class="hover-link"> |
| 470 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 470 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 471 | ··</a> | 471 | ··</a> |
| 472 | ··<span·class="text">Examples</span> | 472 | ··<span·class="text">Examples</span> |
| 473 | </h2> | 473 | </h2> |
| 474 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">S0</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">ordsets</span><span·class="p">:</span><span·class="nf">new</span><span·class="p"·data-group-id=" | 474 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">S0</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">ordsets</span><span·class="p">:</span><span·class="nf">new</span><span·class="p"·data-group-id="3093381301-1">(</span><span·class="p"·data-group-id="3093381301-1">)</span><span·class="p">.</span><span·class="w"> |
| 475 | </span><span·class="p"·data-group-id=" | 475 | </span><span·class="p"·data-group-id="3093381301-2">[</span><span·class="p"·data-group-id="3093381301-2">]</span><span·class="gp·unselectable"> |
| 476 | 2>·</span><span·class="n">S1</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">ordsets</span><span·class="p">:</span><span·class="nf">add_element</span><span·class="p"·data-group-id=" | 476 | 2>·</span><span·class="n">S1</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">ordsets</span><span·class="p">:</span><span·class="nf">add_element</span><span·class="p"·data-group-id="3093381301-3">(</span><span·class="mi">7</span><span·class="p">,</span><span·class="w">·</span><span·class="n">S0</span><span·class="p"·data-group-id="3093381301-3">)</span><span·class="p">.</span><span·class="w"> |
| 477 | </span><span·class="p"·data-group-id=" | 477 | </span><span·class="p"·data-group-id="3093381301-4">[</span><span·class="mi">7</span><span·class="p"·data-group-id="3093381301-4">]</span><span·class="gp·unselectable"> |
| 478 | 3>·</span><span·class="n">S2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">ordsets</span><span·class="p">:</span><span·class="nf">add_element</span><span·class="p"·data-group-id=" | 478 | 3>·</span><span·class="n">S2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">ordsets</span><span·class="p">:</span><span·class="nf">add_element</span><span·class="p"·data-group-id="3093381301-5">(</span><span·class="mi">42</span><span·class="p">,</span><span·class="w">·</span><span·class="n">S1</span><span·class="p"·data-group-id="3093381301-5">)</span><span·class="p">.</span><span·class="w"> |
| 479 | </span><span·class="p"·data-group-id=" | 479 | </span><span·class="p"·data-group-id="3093381301-6">[</span><span·class="mi">7</span><span·class="p">,</span><span·class="mi">42</span><span·class="p"·data-group-id="3093381301-6">]</span><span·class="gp·unselectable"> |
| 480 | 4>·</span><span·class="nc">ordsets</span><span·class="p">:</span><span·class="nf">add_element</span><span·class="p"·data-group-id=" | 480 | 4>·</span><span·class="nc">ordsets</span><span·class="p">:</span><span·class="nf">add_element</span><span·class="p"·data-group-id="3093381301-7">(</span><span·class="mi">42</span><span·class="p">,</span><span·class="w">·</span><span·class="n">S2</span><span·class="p"·data-group-id="3093381301-7">)</span><span·class="p">.</span><span·class="w"> |
| 481 | </span><span·class="p"·data-group-id=" | 481 | </span><span·class="p"·data-group-id="3093381301-8">[</span><span·class="mi">7</span><span·class="p">,</span><span·class="mi">42</span><span·class="p"·data-group-id="3093381301-8">]</span></code></pre> |
| 482 | ··</section> | 482 | ··</section> |
| 483 | </section> | 483 | </section> |
| 484 | <section·class="detail"·id="del_element/2"> | 484 | <section·class="detail"·id="del_element/2"> |
| 485 | ··<div·class="detail-header"> | 485 | ··<div·class="detail-header"> |
| 486 | ····<a·href="#del_element/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 486 | ····<a·href="#del_element/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 487 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 487 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
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| 508 | <p>Returns·a·copy·of·<code·class="inline">Ordset1</code>·with·<code·class="inline">Element</code>·removed.</p><h2·id="del_element/2-examples"·class="section-heading"> | 508 | <p>Returns·a·copy·of·<code·class="inline">Ordset1</code>·with·<code·class="inline">Element</code>·removed.</p><h2·id="del_element/2-examples"·class="section-heading"> |
| 509 | ··<a·href="#del_element/2-examples"·class="hover-link"> | 509 | ··<a·href="#del_element/2-examples"·class="hover-link"> |
| 510 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 510 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 511 | ··</a> | 511 | ··</a> |
| 512 | ··<span·class="text">Examples</span> | 512 | ··<span·class="text">Examples</span> |
| 513 | </h2> | 513 | </h2> |
| 514 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">S</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">ordsets</span><span·class="p">:</span><span·class="nf">from_list</span><span·class="p"·data-group-id=" | 514 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">S</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">ordsets</span><span·class="p">:</span><span·class="nf">from_list</span><span·class="p"·data-group-id="1193011424-1">(</span><span·class="p"·data-group-id="1193011424-2">[</span><span·class="ss">a</span><span·class="p">,</span><span·class="ss">b</span><span·class="p">,</span><span·class="ss">c</span><span·class="p"·data-group-id="1193011424-2">]</span><span[·...·truncated·by·diffoscope;·len:·36,·SHA:·3f72eedf87b56301bafd283eae4f7eb31c884a854e4e8996a845c51397e5fa54·...·]-1">)</span><span·class="p">.</span><span·class="gp·unselectable"> |
| 515 | 2>·</span><span·class="nc">ordsets</span><span·class="p">:</span><span·class="nf">del_element</span><span·class="p"·data-group-id=" | 515 | 2>·</span><span·class="nc">ordsets</span><span·class="p">:</span><span·class="nf">del_element</span><span·class="p"·data-group-id="1193011424-3">(</span><span·class="ss">c</span><span·class="p">,</span><span·class="w">·</span><span·class="n">S</span><span·class="p"·data-group-id="1193011424-3">)</span><span·class="p">.</span><span·class="w"> |
| 516 | </span><span·class="p"·data-group-id=" | 516 | </span><span·class="p"·data-group-id="1193011424-4">[</span><span·class="ss">a</span><span·class="p">,</span><span·class="ss">b</span><span·class="p"·data-group-id="1193011424-4">]</span><span·class="gp·unselectable"> |
| 517 | 3>·</span><span·class="nc">ordsets</span><span·class="p">:</span><span·class="nf">del_element</span><span·class="p"·data-group-id=" | 517 | 3>·</span><span·class="nc">ordsets</span><span·class="p">:</span><span·class="nf">del_element</span><span·class="p"·data-group-id="1193011424-5">(</span><span·class="ss">x</span><span·class="p">,</span><span·class="w">·</span><span·class="n">S</span><span·class="p"·data-group-id="1193011424-5">)</span><span·class="p">.</span><span·class="w"> |
| 518 | </span><span·class="p"·data-group-id=" | 518 | </span><span·class="p"·data-group-id="1193011424-6">[</span><span·class="ss">a</span><span·class="p">,</span><span·class="ss">b</span><span·class="p">,</span><span·class="ss">c</span><span·class="p"·data-group-id="1193011424-6">]</span></code></pre> |
| 519 | ··</section> | 519 | ··</section> |
| 520 | </section> | 520 | </section> |
| 521 | <section·class="detail"·id="filter/2"> | 521 | <section·class="detail"·id="filter/2"> |
| 522 | ··<div·class="detail-header"> | 522 | ··<div·class="detail-header"> |
| 523 | ····<a·href="#filter/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 523 | ····<a·href="#filter/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 524 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 524 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 546, 18 lines modified | Offset 546, 18 lines modified | ||
| 546 | <p>Filters·elements·in·<code·class="inline">Ordset1</code>·using·predicate·function·<code·class="inline">Pred</code>.</p><h2·id="filter/2-examples"·class="section-heading"> | 546 | <p>Filters·elements·in·<code·class="inline">Ordset1</code>·using·predicate·function·<code·class="inline">Pred</code>.</p><h2·id="filter/2-examples"·class="section-heading"> |
| 547 | ··<a·href="#filter/2-examples"·class="hover-link"> | 547 | ··<a·href="#filter/2-examples"·class="hover-link"> |
| 548 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 548 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 549 | ··</a> | 549 | ··</a> |
| 550 | ··<span·class="text">Examples</span> | 550 | ··<span·class="text">Examples</span> |
| 551 | </h2> | 551 | </h2> |
| 552 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">S</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">ordsets</span><span·class="p">:</span><span·class="nf">from_list</span><span·class="p"·data-group-id=" | 552 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">S</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">ordsets</span><span·class="p">:</span><span·class="nf">from_list</span><span·class="p"·data-group-id="2669754218-1">(</span><span·class="p"·data-group-id="2669754218-2">[</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">2</span><span·class="p">,</span><span·class="mi">3</span><span·class="p">,</span><span·class="mi">4</span><span·cla[·...·truncated·by·diffoscope;·len:·232,·SHA:·5a15b3bb62f3835ef7b3ca97f9fdb4df599f961b7795af04b9bbb19e5b738685·...·]-1">)</span><span·class="p">.</span><span·class="gp·unselectable"> |
| 553 | 2>·</span><span·class="n">IsEven</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id=" | 553 | 2>·</span><span·class="n">IsEven</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id="2669754218-3">(</span><span·class="n">N</span><span·class="p"·data-group-id="2669754218-3">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">N</span><span·class="w">·</span><span·class="ow">rem</span><span·class="w">·</span><span·class="mi">2</span><span·class="w">·</span><span·class="o">=:=</span><span·class="w">·</span><span·class="mi">0</span><span·class="w">·</span><span·class="k">end</span><span·class="p">.</span><span·class="gp·unselectable"> |
| 554 | 3>·</span><span·class="nc">ordsets</span><span·class="p">:</span><span·class="nf">filter</span><span·class="p"·data-group-id=" | 554 | 3>·</span><span·class="nc">ordsets</span><span·class="p">:</span><span·class="nf">filter</span><span·class="p"·data-group-id="2669754218-4">(</span><span·class="n">IsEven</span><span·class="p">,</span><span·class="w">·</span><span·class="n">S</span><span·class="p"·data-group-id="2669754218-4">)</span><span·class="p">.</span><span·class="w"> |
| 555 | </span><span·class="p"·data-group-id=" | 555 | </span><span·class="p"·data-group-id="2669754218-5">[</span><span·class="mi">2</span><span·class="p">,</span><span·class="mi">4</span><span·class="p">,</span><span·class="mi">6</span><span·class="p"·data-group-id="2669754218-5">]</span></code></pre> |
| 556 | ··</section> | 556 | ··</section> |
| 557 | </section> | 557 | </section> |
| 558 | <section·class="detail"·id="filtermap/2"> | 558 | <section·class="detail"·id="filtermap/2"> |
| 559 | ··<div·class="detail-header"> | 559 | ··<div·class="detail-header"> |
| 560 | ····<a·href="#filtermap/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 560 | ····<a·href="#filtermap/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 561 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 561 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 584, 30 lines modified | Offset 584, 30 lines modified | ||
| 584 | ·······················Ordset2·::·<a·href="#t:ordset/1">ordset</a>(T1·|·T2).</pre> | 584 | ·······················Ordset2·::·<a·href="#t:ordset/1">ordset</a>(T1·|·T2).</pre> |
| 585 | ······</div> | 585 | ······</div> |
| 586 | <p>Calls·<code·class="inline">Fun(Elem)</code>·for·each·<code·class="inline">Elem</code>·of·<code·class="inline">Ordset1</code>·to·update·or·remove | 586 | <p>Calls·<code·class="inline">Fun(Elem)</code>·for·each·<code·class="inline">Elem</code>·of·<code·class="inline">Ordset1</code>·to·update·or·remove |
| 587 | elements·from·<code·class="inline">Ordset1</code>.</p><p><code·class="inline">Fun/1</code>·must·return·either·a·Boolean·or·a·tuple·<code·class="inline">{true,·Value}</code>.·The | 587 | elements·from·<code·class="inline">Ordset1</code>.</p><p><code·class="inline">Fun/1</code>·must·return·either·a·Boolean·or·a·tuple·<code·class="inline">{true,·Value}</code>.·The |
| 588 | function·returns·the·set·of·elements·for·which·<code·class="inline">Fun</code>·returns·a·new | 588 | function·returns·the·set·of·elements·for·which·<code·class="inline">Fun</code>·returns·a·new |
| 589 | value,·with·<code·class="inline">true</code>·being·equivalent·to·<code·class="inline">{true,·Elem}</code>.</p><p><a·href="#filtermap/2"><code·class="inline">ordsets:filtermap/2</code></a>·behaves·as·if·it·were·defined·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">filtermap</span><span·class="p"·data-group-id="0 | 589 | value,·with·<code·class="inline">true</code>·being·equivalent·to·<code·class="inline">{true,·Elem}</code>.</p><p><a·href="#filtermap/2"><code·class="inline">ordsets:filtermap/2</code></a>·behaves·as·if·it·were·defined·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">filtermap</span><span·class="p"·data-group-id="0613813810-1">(</span><span·class="n">Fun</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Ordset1</span><span·class="p"·data-group-id="0613813810-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 590 | ····</span><span·class="nc">ordsets</span><span·class="p">:</span><span·class="nf">from_list</span><span·class="p"·data-group-id="0 | 590 | ····</span><span·class="nc">ordsets</span><span·class="p">:</span><span·class="nf">from_list</span><span·class="p"·data-group-id="0613813810-2">(</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">filtermap</span><span·class="p"·data-group-id="0613813810-3">(</span><span·class="n">Fun</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Ordset[·...·truncated·by·diffoscope;·len:·102,·SHA:·f6fac0e9ad0e12f5f751c32c2aeefe6958da17d5f6f10a46ecedbcab160b4834·...·]-2">)</span><span·class="p">.</span></code></pre><h2·id="filtermap/2-examples"·class="section-heading"> |
| 591 | ··<a·href="#filtermap/2-examples"·class="hover-link"> | 591 | ··<a·href="#filtermap/2-examples"·class="hover-link"> |
| 592 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 592 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 593 | ··</a> | 593 | ··</a> |
| 594 | ··<span·class="text">Examples</span> | 594 | ··<span·class="text">Examples</span> |
| 595 | </h2> | 595 | </h2> |
| 596 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">S</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">ordsets</span><span·class="p">:</span><span·class="nf">from_list</span><span·class="p"·data-group-id=" | 596 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">S</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">ordsets</span><span·class="p">:</span><span·class="nf">from_list</span><span·class="p"·data-group-id="1834520177-1">(</span><span·class="p"·data-group-id="1834520177-2">[</span><span·class="mi">2</span><span·class="p">,</span><span·class="mi">4</span><span·class="p">,</span><span·class="mi">5</span><span·class="p">,</span><span·class="mi">6</span><span·cla[·...·truncated·by·diffoscope;·len:·183,·SHA:·d912106822b70b75f36b36df248da2c919d61dc7e38ee12833a3673e7bb70263·...·]-1">)</span><span·class="gp·unselectable"> |
| 597 | 2>·</span><span·class="n">F</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id=" | 597 | 2>·</span><span·class="n">F</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id="1834520177-3">(</span><span·class="n">X</span><span·class="p"·data-group-id="1834520177-3">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 598 | ···········</span><span·class="k">case</span><span·class="w">·</span><span·class="n">X</span><span·class="w">·</span><span·class="ow">rem</span><span·class="w">·</span><span·class="mi">2</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> | 598 | ···········</span><span·class="k">case</span><span·class="w">·</span><span·class="n">X</span><span·class="w">·</span><span·class="ow">rem</span><span·class="w">·</span><span·class="mi">2</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 599 | ···············</span><span·class="mi">0</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="p"·data-group-id=" | 599 | ···············</span><span·class="mi">0</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="p"·data-group-id="1834520177-4">{</span><span·class="ss">true</span><span·class="p">,</span><span·class="w">·</span><span·class="n">X</span><span·class="w">·</span><span·class="ow">div</span><span·class="w">·</span><span·class="mi">2</span><span·class="p"·data-group-id="183[·...·truncated·by·diffoscope;·len:·7,·SHA:·dbbe879a0d2b799a2745e8d481c28d66eef44df3a420a7098e7ca339a0e78d6f·...·]-4">}</span><span·class="p">;</span><span·class="w"> |
| 600 | ···············</span><span·class="mi">1</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">false</span><span·class="w"> | 600 | ···············</span><span·class="mi">1</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">false</span><span·class="w"> |
| 601 | ···········</span><span·class="k">end</span><span·class="w"> | 601 | ···········</span><span·class="k">end</span><span·class="w"> |
| 602 | ········</span><span·class="k">end</span><span·class="p">.</span><span·class="gp·unselectable"> | 602 | ········</span><span·class="k">end</span><span·class="p">.</span><span·class="gp·unselectable"> |
| 603 | 3>·</span><span·class="nc">ordsets</span><span·class="p">:</span><span·class="nf">filtermap</span><span·class="p"·data-group-id=" | 603 | 3>·</span><span·class="nc">ordsets</span><span·class="p">:</span><span·class="nf">filtermap</span><span·class="p"·data-group-id="1834520177-5">(</span><span·class="n">F</span><span·class="p">,</span><span·class="w">·</span><span·class="n">S</span><span·class="p"·data-group-id="1834520177-5">)</span><span·class="p">.</span><span·class="w"> |
| 604 | </span><span·class="p"·data-group-id=" | 604 | </span><span·class="p"·data-group-id="1834520177-6">[</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">2</span><span·class="p">,</span><span·class="mi">3</span><span·class="p">,</span><span·class="mi">4</span><span·class="p"·data-group-id="1834520177-6">]</span></code></pre> |
| 605 | ··</section> | 605 | ··</section> |
| 606 | </section> | 606 | </section> |
| 607 | <section·class="detail"·id="fold/3"> | 607 | <section·class="detail"·id="fold/3"> |
| 608 | ··<div·class="detail-header"> | 608 | ··<div·class="detail-header"> |
| 609 | ····<a·href="#fold/3"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 609 | ····<a·href="#fold/3"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 610 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 610 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 637, 17 lines modified | Offset 637, 17 lines modified | ||
| 637 | <p>Folds·<code·class="inline">Function</code>·over·every·element·in·<code·class="inline">Ordset</code>·and·returns·the·final·value·of | 637 | <p>Folds·<code·class="inline">Function</code>·over·every·element·in·<code·class="inline">Ordset</code>·and·returns·the·final·value·of |
| 638 | the·accumulator.</p><h2·id="fold/3-examples"·class="section-heading"> | 638 | the·accumulator.</p><h2·id="fold/3-examples"·class="section-heading"> |
| 639 | ··<a·href="#fold/3-examples"·class="hover-link"> | 639 | ··<a·href="#fold/3-examples"·class="hover-link"> |
| 640 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 640 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 641 | ··</a> | 641 | ··</a> |
| 642 | ··<span·class="text">Examples</span> | 642 | ··<span·class="text">Examples</span> |
| 643 | </h2> | 643 | </h2> |
| 644 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">S</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">ordsets</span><span·class="p">:</span><span·class="nf">from_list</span><span·class="p"·data-group-id=" | 644 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">S</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">ordsets</span><span·class="p">:</span><span·class="nf">from_list</span><span·class="p"·data-group-id="3018547305-1">(</span><span·class="p"·data-group-id="3018547305-2">[</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">2</span><span·class="p">,</span><span·class="mi">3</span><span·class="p">,</span><span·class="mi">4</span><span·cla[·...·truncated·by·diffoscope;·len:·85,·SHA:·f2b465349cd6f2fe8d122f1ce8b662039034e7f7c7e1f996c6ad14d42b334900·...·]-1">)</span><span·class="p">.</span><span·class="gp·unselectable"> |
| 645 | 2>·</span><span·class="n">Plus</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="k">fun</span><span·class="w">·</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="ss">'+'</span><span·class="p">/</span><span·class="mi">2</span><span·class="p">.</span><span·class="gp·unselectable"> | 645 | 2>·</span><span·class="n">Plus</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="k">fun</span><span·class="w">·</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="ss">'+'</span><span·class="p">/</span><span·class="mi">2</span><span·class="p">.</span><span·class="gp·unselectable"> |
| 646 | 3>·</span><span·class="nc">ordsets</span><span·class="p">:</span><span·class="nf">fold</span><span·class="p"·data-group-id=" | 646 | 3>·</span><span·class="nc">ordsets</span><span·class="p">:</span><span·class="nf">fold</span><span·class="p"·data-group-id="3018547305-3">(</span><span·class="n">Plus</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">0</span><span·class="p">,</span><span·class="w">·</span><span·class="n">S</span><span·class="p"·data-group-id="3018547305-3">)</span><span·class="p">.</span><span·class="w"> |
| 647 | </span><span·class="mi">10</span></code></pre> | 647 | </span><span·class="mi">10</span></code></pre> |
| 648 | ··</section> | 648 | ··</section> |
| 649 | </section> | 649 | </section> |
| 650 | <section·class="detail"·id="from_list/1"> | 650 | <section·class="detail"·id="from_list/1"> |
| 651 | ··<div·class="detail-header"> | 651 | ··<div·class="detail-header"> |
| 652 | ····<a·href="#from_list/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 652 | ····<a·href="#from_list/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| Offset 672, 16 lines modified | Offset 672, 16 lines modified | ||
| 672 | <p>Returns·an·ordered·set·of·the·elements·in·<code·class="inline">List</code>.</p><h2·id="from_list/1-examples"·class="section-heading"> | 672 | <p>Returns·an·ordered·set·of·the·elements·in·<code·class="inline">List</code>.</p><h2·id="from_list/1-examples"·class="section-heading"> |
| 673 | ··<a·href="#from_list/1-examples"·class="hover-link"> | 673 | ··<a·href="#from_list/1-examples"·class="hover-link"> |
| 674 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 674 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 675 | ··</a> | 675 | ··</a> |
| 676 | ··<span·class="text">Examples</span> | 676 | ··<span·class="text">Examples</span> |
| 677 | </h2> | 677 | </h2> |
| 678 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">ordsets</span><span·class="p">:</span><span·class="nf">from_list</span><span·class="p"·data-group-id=" | 678 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">ordsets</span><span·class="p">:</span><span·class="nf">from_list</span><span·class="p"·data-group-id="9931299601-1">(</span><span·class="p"·data-group-id="9931299601-2">[</span><span·class="ss">a</span><span·class="p">,</span><span·class="ss">b</span><span·class="p">,</span><span·class="ss">a</span><span·class="p">,</span><span·class="ss">b</span><span·cla[·...·truncated·by·diffoscope;·len:·183,·SHA:·9908f227a38509909237bd21bb9581a5ece0b145b5898dc1c167625845050cc9·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 679 | </span><span·class="p"·data-group-id=" | 679 | </span><span·class="p"·data-group-id="9931299601-3">[</span><span·class="ss">a</span><span·class="p">,</span><span·class="ss">b</span><span·class="p">,</span><span·class="ss">c</span><span·class="p"·data-group-id="9931299601-3">]</span></code></pre> |
| 680 | ··</section> | 680 | ··</section> |
| 681 | </section> | 681 | </section> |
| 682 | <section·class="detail"·id="intersection/1"> | 682 | <section·class="detail"·id="intersection/1"> |
| 683 | ··<div·class="detail-header"> | 683 | ··<div·class="detail-header"> |
| 684 | ····<a·href="#intersection/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 684 | ····<a·href="#intersection/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 685 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 685 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
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| Offset 157, 135 lines modified | Offset 157, 135 lines modified | ||
| 157 | employs·a·number·of·techniques·to·speed·up·testing·and·reliably·shut·down·peer | 157 | employs·a·number·of·techniques·to·speed·up·testing·and·reliably·shut·down·peer |
| 158 | nodes:</p><ul><li>peers·start·linked·to·test·runner·process.·If·the·test·case·fails,·the·peer | 158 | nodes:</p><ul><li>peers·start·linked·to·test·runner·process.·If·the·test·case·fails,·the·peer |
| 159 | node·is·stopped·automatically,·leaving·no·rogue·nodes·running·in·the | 159 | node·is·stopped·automatically,·leaving·no·rogue·nodes·running·in·the |
| 160 | background</li><li>arguments·used·to·start·the·peer·are·saved·in·the·control·process·state·for | 160 | background</li><li>arguments·used·to·start·the·peer·are·saved·in·the·control·process·state·for |
| 161 | manual·analysis.·If·the·test·case·fails,·the·CRASH·REPORT·contains·these | 161 | manual·analysis.·If·the·test·case·fails,·the·CRASH·REPORT·contains·these |
| 162 | arguments</li><li>multiple·test·cases·can·run·concurrently·speeding·up·overall·testing·process, | 162 | arguments</li><li>multiple·test·cases·can·run·concurrently·speeding·up·overall·testing·process, |
| 163 | peer·node·names·are·unique·even·when·there·are·multiple·instances·of·the·same | 163 | peer·node·names·are·unique·even·when·there·are·multiple·instances·of·the·same |
| 164 | test·suite·running·in·parallel</li></ul><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 164 | test·suite·running·in·parallel</li></ul><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="8038435400-1">(</span><span·class="ss">my_SUITE</span><span·class="p"·data-group-id="8038435400-1">)</span><span·class="p">.</span><span·class="w"> |
| 165 | </span><span·class="p">-</span><span·class="na">behaviour</span><span·class="p"·data-group-id=" | 165 | </span><span·class="p">-</span><span·class="na">behaviour</span><span·class="p"·data-group-id="8038435400-2">(</span><span·class="ss">ct_suite</span><span·class="p"·data-group-id="8038435400-2">)</span><span·class="p">.</span><span·class="w"> |
| 166 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 166 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="8038435400-3">(</span><span·class="p"·data-group-id="8038435400-4">[</span><span·class="ss">all</span><span·class="p">/</span><span·class="mi">0</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">groups</span><span·class="p">/</span><sp[·...·truncated·by·diffoscope;·len:·116,·SHA:·75e611259c19aea53624f77e5e69f9438a9e4d6ebb4ed9fbb86f2ab32b442ef5·...·]-3">)</span><span·class="p">.</span><span·class="w"> |
| 167 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 167 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="8038435400-5">(</span><span·class="p"·data-group-id="8038435400-6">[</span><span·class="ss">basic</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">args</span><span·class="p">/</span><sp[·...·truncated·by·diffoscope;·len:·506,·SHA:·7fab9deea078cacff98a38c67c71bdbe6b96eec74cffb7c6d12c18ee4c17220a·...·]-5">)</span><span·class="p">.</span><span·class="w"> |
| 168 | </span><span·class="w"> | 168 | </span><span·class="w"> |
| 169 | </span><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id=" | 169 | </span><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id="8038435400-7">(</span><span·class="s">"common_test/include/ct.hrl"</span><span·class="p"·data-group-id="8038435400-7">)</span><span·class="p">.</span><span·class="w"> |
| 170 | </span><span·class="nf">groups</span><span·class="p"·data-group-id=" | 170 | </span><span·class="nf">groups</span><span·class="p"·data-group-id="8038435400-8">(</span><span·class="p"·data-group-id="8038435400-8">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 171 | ····</span><span·class="p"·data-group-id=" | 171 | ····</span><span·class="p"·data-group-id="8038435400-9">[</span><span·class="p"·data-group-id="8038435400-10">{</span><span·class="ss">quick</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8038435400-11">[</span><span·class="ss">parallel</span><span·class="p"·d[·...·truncated·by·diffoscope;·len:·24,·SHA:·bfdefe2560a161b0540f952f9ba069277cf4361f9d923255855817ceaec54780·...·]-11">]</span><span·class="p">,</span><span·class="w"> |
| 172 | ········</span><span·class="p"·data-group-id=" | 172 | ········</span><span·class="p"·data-group-id="8038435400-12">[</span><span·class="ss">basic</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">args</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">named</span><span·class="p">,</span><span·class="w">·</span><sp[·...·truncated·by·diffoscope;·len:·264,·SHA:·5ef9ddf37a41c8b52385184d7ac5399dcead500582ff5b2cb4744dbc91b90e8e·...·]-9">]</span><span·class="p">.</span><span·class="w"> |
| 173 | </span><span·class="nf">all</span><span·class="p"·data-group-id=" | 173 | </span><span·class="nf">all</span><span·class="p"·data-group-id="8038435400-13">(</span><span·class="p"·data-group-id="8038435400-13">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 174 | ····</span><span·class="p"·data-group-id=" | 174 | ····</span><span·class="p"·data-group-id="8038435400-14">[</span><span·class="p"·data-group-id="8038435400-15">{</span><span·class="ss">group</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">quick</span><span·class="p"·data-group-id="8038435400-15">}</span><span·class="p"·dat[·...·truncated·by·diffoscope;·len:·22,·SHA:·cb67b6222b656230d69d1820376659a150a9c057d0494c2ef841323460851b6d·...·]-14">]</span><span·class="p">.</span><span·class="w"> |
| 175 | </span><span·class="nf">basic</span><span·class="p"·data-group-id=" | 175 | </span><span·class="nf">basic</span><span·class="p"·data-group-id="8038435400-16">(</span><span·class="n">Config</span><span·class="p"·data-group-id="8038435400-16">)</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><span·class="nf">is_list</span><span·class="p"·data-group-id="8038435400-17[·...·truncated·by·diffoscope;·len:·80,·SHA:·a3b37e73e490693cce724c9046af7adf9caebaeecfb2fd07922bde39bdbbeb70·...·]-17">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 176 | ····</span><span·class="p"·data-group-id=" | 176 | ····</span><span·class="p"·data-group-id="8038435400-18">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Peer</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="n">Node</span><span·class="p"·data-group-id="80[·...·truncated·by·diffoscope;·len:·242,·SHA:·b5907f185c3fee73b9376e1f0884422568e91580edac88a46acc4d7c18aff08b·...·]-19">)</span><span·class="p">,</span><span·class="w"> |
| 177 | ····</span><span·class="nc">peer</span><span·class="p">:</span><span·class="nf">stop</span><span·class="p"·data-group-id=" | 177 | ····</span><span·class="nc">peer</span><span·class="p">:</span><span·class="nf">stop</span><span·class="p"·data-group-id="8038435400-20">(</span><span·class="n">Peer</span><span·class="p"·data-group-id="8038435400-20">)</span><span·class="p">.</span><span·class="w"> |
| 178 | </span><span·class="nf">args</span><span·class="p"·data-group-id=" | 178 | </span><span·class="nf">args</span><span·class="p"·data-group-id="8038435400-21">(</span><span·class="n">Config</span><span·class="p"·data-group-id="8038435400-21">)</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><span·class="nf">is_list</span><span·class="p"·data-group-id="8038435400-22[·...·truncated·by·diffoscope;·len:·80,·SHA:·a3b37e73e490693cce724c9046af7adf9caebaeecfb2fd07922bde39bdbbeb70·...·]-22">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 179 | ····</span><span·class="c1">%%·specify·additional·arguments·to·the·new·node</span><span·class="w"> | 179 | ····</span><span·class="c1">%%·specify·additional·arguments·to·the·new·node</span><span·class="w"> |
| 180 | ····</span><span·class="p"·data-group-id=" | 180 | ····</span><span·class="p"·data-group-id="8038435400-23">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Peer</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="n">Node</span><span·class="p"·data-group-id="80[·...·truncated·by·diffoscope;·len:·482,·SHA:·dc2454bb11d2cafa70e7f15c7aa5bbbb1b859d749d8632b96e23b73f0870a6db·...·]-24">)</span><span·class="p">,</span><span·class="w"> |
| 181 | ····</span><span·class="nc">peer</span><span·class="p">:</span><span·class="nf">stop</span><span·class="p"·data-group-id=" | 181 | ····</span><span·class="nc">peer</span><span·class="p">:</span><span·class="nf">stop</span><span·class="p"·data-group-id="8038435400-26">(</span><span·class="n">Peer</span><span·class="p"·data-group-id="8038435400-26">)</span><span·class="p">.</span><span·class="w"> |
| 182 | </span><span·class="nf">named</span><span·class="p"·data-group-id=" | 182 | </span><span·class="nf">named</span><span·class="p"·data-group-id="8038435400-27">(</span><span·class="n">Config</span><span·class="p"·data-group-id="8038435400-27">)</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><span·class="nf">is_list</span><span·class="p"·data-group-id="8038435400-28[·...·truncated·by·diffoscope;·len:·80,·SHA:·a3b37e73e490693cce724c9046af7adf9caebaeecfb2fd07922bde39bdbbeb70·...·]-28">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 183 | ····</span><span·class="c1">%%·pass·test·case·name·down·to·function·starting·nodes</span><span·class="w"> | 183 | ····</span><span·class="c1">%%·pass·test·case·name·down·to·function·starting·nodes</span><span·class="w"> |
| 184 | ····</span><span·class="n">Peer</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">start_node_impl</span><span·class="p"·data-group-id=" | 184 | ····</span><span·class="n">Peer</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">start_node_impl</span><span·class="p"·data-group-id="8038435400-29">(</span><span·class="ss">named_test</span><span·class="p"·data-group-id="8038435400-29">)</span><span·class="p">,</span><span·class="w"> |
| 185 | ····</span><span·class="nc">peer</span><span·class="p">:</span><span·class="nf">stop</span><span·class="p"·data-group-id=" | 185 | ····</span><span·class="nc">peer</span><span·class="p">:</span><span·class="nf">stop</span><span·class="p"·data-group-id="8038435400-30">(</span><span·class="n">Peer</span><span·class="p"·data-group-id="8038435400-30">)</span><span·class="p">.</span><span·class="w"> |
| 186 | </span><span·class="nf">start_node_impl</span><span·class="p"·data-group-id=" | 186 | </span><span·class="nf">start_node_impl</span><span·class="p"·data-group-id="8038435400-31">(</span><span·class="n">ActualTestCase</span><span·class="p"·data-group-id="8038435400-31">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 187 | ····</span><span·class="p"·data-group-id=" | 187 | ····</span><span·class="p"·data-group-id="8038435400-32">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Peer</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Node</span><span·class="p"·data-group-id="8038435400-32">}</span><sp[·...·truncated·by·diffoscope;·len:·635,·SHA:·627de03c81f0c7bf29c7ac378fa7b56ef3fc9620d197f28eb27873ecc007f497·...·]-33">)</span><span·class="p">,</span><span·class="w"> |
| 188 | ····</span><span·class="c1">%%·extra·setup·needed·for·multiple·test·cases</span><span·class="w"> | 188 | ····</span><span·class="c1">%%·extra·setup·needed·for·multiple·test·cases</span><span·class="w"> |
| 189 | ····</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">rpc</span><span·class="p">:</span><span·class="nf">call</span><span·class="p"·data-group-id=" | 189 | ····</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">rpc</span><span·class="p">:</span><span·class="nf">call</span><span·class="p"·data-group-id="8038435400-36">(</span><span·class="n">Node</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">application</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">set_env</span><span·class="p">,</span><span·class="w">·</s[·...·truncated·by·diffoscope;·len:·335,·SHA:·45026ddd68c8d4dfa483451965efb8b3a95b2f9795c11e1e6abee30313290c99·...·]-36">)</span><span·class="p">,</span><span·class="w"> |
| 190 | ····</span><span·class="n">Peer</span><span·class="p">.</span><span·class="w"> | 190 | ····</span><span·class="n">Peer</span><span·class="p">.</span><span·class="w"> |
| 191 | </span><span·class="nf">restart_node</span><span·class="p"·data-group-id=" | 191 | </span><span·class="nf">restart_node</span><span·class="p"·data-group-id="8038435400-38">(</span><span·class="n">Config</span><span·class="p"·data-group-id="8038435400-38">)</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><span·class="nf">is_list</span><span·class="p"·data-group-id="8038435400-39[·...·truncated·by·diffoscope;·len:·80,·SHA:·a3b37e73e490693cce724c9046af7adf9caebaeecfb2fd07922bde39bdbbeb70·...·]-39">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 192 | ····</span><span·class="n">Name</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">?</span><span·class="n">CT_PEER_NAME</span><span·class="p"·data-group-id=" | 192 | ····</span><span·class="n">Name</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">?</span><span·class="n">CT_PEER_NAME</span><span·class="p"·data-group-id="8038435400-40">(</span><span·class="p"·data-group-id="8038435400-40">)</span><span·class="p">,</span><span·class="w"> |
| 193 | ····</span><span·class="p"·data-group-id=" | 193 | ····</span><span·class="p"·data-group-id="8038435400-41">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Peer</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Node</span><span·class="p"·data-group-id="8038435400-41">}</span><sp[·...·truncated·by·diffoscope;·len:·458,·SHA:·7e84849adee670e7b47b2519e6b52b4c81853d9282601896494c657acceac6e6·...·]-42">)</span><span·class="p">,</span><span·class="w"> |
| 194 | ····</span><span·class="nc">peer</span><span·class="p">:</span><span·class="nf">stop</span><span·class="p"·data-group-id=" | 194 | ····</span><span·class="nc">peer</span><span·class="p">:</span><span·class="nf">stop</span><span·class="p"·data-group-id="8038435400-44">(</span><span·class="n">Peer</span><span·class="p"·data-group-id="8038435400-44">)</span><span·class="p">,</span><span·class="w"> |
| 195 | ····</span><span·class="c1">%%·restart·the·node·with·the·same·name·as·before</span><span·class="w"> | 195 | ····</span><span·class="c1">%%·restart·the·node·with·the·same·name·as·before</span><span·class="w"> |
| 196 | ····</span><span·class="p"·data-group-id=" | 196 | ····</span><span·class="p"·data-group-id="8038435400-45">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Peer2</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Node</span><span·class="p"·data-group-id="8038435400-45">}</span><s[·...·truncated·by·diffoscope;·len:·758,·SHA:·2e8bcbba136e60523b738bff747b2bda2ef66259aec47ca17e3891e6cc6f5659·...·]-46">)</span><span·class="p">,</span><span·class="w"> |
| 197 | ····</span><span·class="nc">peer</span><span·class="p">:</span><span·class="nf">stop</span><span·class="p"·data-group-id="2844081137-49">(</span><span·class="n">Peer2</span><span·class="p"·data-group-id="2844081137-49">)</span><span·class="p">.</span></code></pre><p>The·next·example·demonstrates·how·to·start·multiple·nodes·concurrently:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">multi_node</span><span·class="p"·data-group-id="4207904120-1">(</span><span·class="n">Config</span><span·class="p"·data-group-id="4207904120-1">)</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><span·class="nf">is_list</span><span·class="p"·data-group-id="4207904120-2">(</span><span·class="n">Config</span><span·class="p"·data-group-id="4207904120-2">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | ||
| 198 | ····</span><span·class="n"> | 197 | ····</span><span·class="nc">peer</span><span·class="p">:</span><span·class="nf">stop</span><span·class="p"·data-group-id="8038435400-49">(</span><span·class="n">Peer2</span><span·class="p"·data-group-id="8038435400-49">)</span><span·class="p">.</span></code></pre><p>The·next·examp[·...·truncated·by·diffoscope;·len:·564,·SHA:·f7b97fec2042788eb5df9b34718f144307e78938dba1fe6489386c29431fcedb·...·]</span><span·class="w"> |
| 198 | ····</span><span·class="n">Peers</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="4216119053-3">[</span><span·class="o">?</span><span·class="n">CT_PEER</span><span·class="p"·data-group-id="4216119053-4">(</span><span·class="p"·data-group-id="4216119053-5">#{</span><span·class="ss">wait_boot</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="4216119053-6">{</span><span·class="nf">self</span><span·class="p"·data-group-id="4216119053-7">(</span><span·class="p"·data-group-id="4216119053-7">)</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">tag</span><span·class="p"·data-group-id="4216119053-6">}</span><span·class="p"·data-group-id="4216119053-5">}</span><span·class="p"·data-group-id="4216119053-4">)</span><span·class="w"> | ||
| 199 | ········</span><span·class="p">||</span><span·class="w">·</span><span·class="p">_</span><span·class="w">·</span><span·class="o"><-</span><span·class="w">·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">seq</span><span·class="p"·data-group-id="42 | 199 | ········</span><span·class="p">||</span><span·class="w">·</span><span·class="p">_</span><span·class="w">·</span><span·class="o"><-</span><span·class="w">·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">seq</span><span·class="p"·data-group-id="4216119053-8">(</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">4</span><span·class="p"·data-group-id="4216119053-8">)</span><span·class="p"·data-group-id="4216119053-3">]</span><span·class="p">,</span><span·class="w"> |
| 200 | ····</span><span·class="c1">%%·wait·for·all·nodes·to·complete·boot·process,·get·their·names:</span><span·class="w"> | 200 | ····</span><span·class="c1">%%·wait·for·all·nodes·to·complete·boot·process,·get·their·names:</span><span·class="w"> |
| 201 | ····</span><span·class="p">_</span><span·class="n">Nodes</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="42 | 201 | ····</span><span·class="p">_</span><span·class="n">Nodes</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="4216119053-9">[</span><span·class="k">receive</span><span·class="w">·</span><span·class="p"·data-group-id="4216119053-10">{</span><span·class="ss">tag</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4216119053-11">{</span[·...·truncated·by·diffoscope;·len:·277,·SHA:·24ad9bfe39639e06281cde2aa99489eb4a1ba094d8aee5c78ec8bcfd44f8f62a·...·]-10">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">Node</span><span·class="w">·</span><span·class="k">end</span><span·class="w"> |
| 202 | ········</span><span·class="p">||</span><span·class="w">·</span><span·class="p"·data-group-id="42 | 202 | ········</span><span·class="p">||</span><span·class="w">·</span><span·class="p"·data-group-id="4216119053-12">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Peer</span><span·class="p"·data-group-id="4216119053-12">}</span><span·class="w">·</span><span·class="o"><-</span><span·class="w">·</span><spa[·...·truncated·by·diffoscope;·len:·65,·SHA:·e89687a4fc55c5373d642591be970a0b109580d9691219975aeab4de26a7d9ef·...·]-9">]</span><span·class="p">,</span><span·class="w"> |
| 203 | ····</span><span·class="p"·data-group-id="42 | 203 | ····</span><span·class="p"·data-group-id="4216119053-13">[</span><span·class="nc">peer</span><span·class="p">:</span><span·class="nf">stop</span><span·class="p"·data-group-id="4216119053-14">(</span><span·class="n">Peer</span><span·class="p"·data-group-id="4216119053-14">)</span><span·class="w">·</s[·...·truncated·by·diffoscope;·len:·407,·SHA:·99bdecaa48e9178017a0f547da1ec6dd030357eea5f549d3d2d5516e3a528103·...·]-13">]</span><span·class="p">.</span></code></pre><p>Start·a·peer·on·a·different·host.·Requires·<code·class="inline">ssh</code>·key-based·authentication·set |
| 204 | up,·allowing·"another_host"·connection·without·password·prompt.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Ssh</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">os</span><span·class="p">:</span><span·class="nf">find_executable</span><span·class="p"·data-group-id=" | 204 | up,·allowing·"another_host"·connection·without·password·prompt.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Ssh</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">os</span><span·class="p">:</span><span·class="nf">find_executable</span><span·class="p"·data-group-id="5029246274-1">(</span><span·class="s">"ssh"</span><span·class="p"·data-group-id="5029246274-1">)</span><span·class="p">,</span><span·class="w"> |
| 205 | </span><span·class="nc">peer</span><span·class="p">:</span><span·class="nf">start_link</span><span·class="p"·data-group-id=" | 205 | </span><span·class="nc">peer</span><span·class="p">:</span><span·class="nf">start_link</span><span·class="p"·data-group-id="5029246274-2">(</span><span·class="p"·data-group-id="5029246274-3">#{</span><span·class="ss">exec</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="5029246274-4">{</span><span·class="n">Ssh</sp[·...·truncated·by·diffoscope;·len:·331,·SHA:·234cf02e466d0176c6745164fa22d519d097d41c2c07cccc8d000186ff1af688·...·]-4">}</span><span·class="p">,</span><span·class="w"> |
| 206 | ····</span><span·class="ss">connection</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">standard_io</span><span·class="p"·data-group-id=" | 206 | ····</span><span·class="ss">connection</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">standard_io</span><span·class="p"·data-group-id="5029246274-3">}</span><span·class="p"·data-group-id="5029246274-2">)</span><span·class="p">,</span></code></pre><p>The·following·Common·Test·case·demonstrates·Docker·integration,·starting·two |
| 207 | containers·with·hostnames·"one"·and·"two".·In·this·example·Erlang·nodes·running | 207 | containers·with·hostnames·"one"·and·"two".·In·this·example·Erlang·nodes·running |
| 208 | inside·containers·form·an·Erlang·cluster.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">docker</span><span·class="p"·data-group-id=" | 208 | inside·containers·form·an·Erlang·cluster.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">docker</span><span·class="p"·data-group-id="2518067146-1">(</span><span·class="n">Config</span><span·class="p"·data-group-id="2518067146-1">)</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><span·class="nf">is_list</span><span·class="p"·data-group-id="2518067146-2">([·...·truncated·by·diffoscope;·len:·77,·SHA:·98ae1206040b23734e5606ddf7ec4cf98c490081f2350acea653aa45650ab5f5·...·]-2">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 209 | ····</span><span·class="n">Docker</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">os</span><span·class="p">:</span><span·class="nf">find_executable</span><span·class="p"·data-group-id=" | 209 | ····</span><span·class="n">Docker</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">os</span><span·class="p">:</span><span·class="nf">find_executable</span><span·class="p"·data-group-id="2518067146-3">(</span><span·class="s">"docker"</span><span·class="p"·data-group-id="2518067146-3">)</span><span·class="p">,</span><span·class="w"> |
| 210 | ····</span><span·class="n">PrivDir</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">proplists</span><span·class="p">:</span><span·class="nf">get_value</span><span·class="p"·data-group-id=" | 210 | ····</span><span·class="n">PrivDir</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">proplists</span><span·class="p">:</span><span·class="nf">get_value</span><span·class="p"·data-group-id="2518067146-4">(</span><span·class="ss">priv_dir</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Config</span><span·class="p"·data-group-id="2518067146-4">)</span><span·class="p">,</span><span·class="w"> |
| 211 | ····</span><span·class="nf">build_release</span><span·class="p"·data-group-id=" | 211 | ····</span><span·class="nf">build_release</span><span·class="p"·data-group-id="2518067146-5">(</span><span·class="n">PrivDir</span><span·class="p"·data-group-id="2518067146-5">)</span><span·class="p">,</span><span·class="w"> |
| 212 | ····</span><span·class="nf">build_image</span><span·class="p"·data-group-id=" | 212 | ····</span><span·class="nf">build_image</span><span·class="p"·data-group-id="2518067146-6">(</span><span·class="n">PrivDir</span><span·class="p"·data-group-id="2518067146-6">)</span><span·class="p">,</span><span·class="w"> |
| 213 | ····</span><span·class="c1">%%·start·two·Docker·containers</span><span·class="w"> | 213 | ····</span><span·class="c1">%%·start·two·Docker·containers</span><span·class="w"> |
| 214 | ····</span><span·class="p"·data-group-id=" | 214 | ····</span><span·class="p"·data-group-id="2518067146-7">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Peer</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Node</span><span·class="p"·data-group-id="2518067146-7">}</span><span[·...·truncated·by·diffoscope;·len:·247,·SHA:·3ca6ce3e73dc35ffeb5040740516e9bd966457bdd56a9fd248183cb26881202b·...·]-9">#{</span><span·class="ss">name</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">lambda</span><span·class="p">,</span><span·class="w"> |
| 215 | ········</span><span·class="ss">connection</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">standard_io</span><span·class="p">,</span><span·class="w"> | 215 | ········</span><span·class="ss">connection</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">standard_io</span><span·class="p">,</span><span·class="w"> |
| 216 | ········</span><span·class="ss">exec</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id=" | 216 | ········</span><span·class="ss">exec</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="2518067146-10">{</span><span·class="n">Docker</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2518067146-11">[</span><span·class="s">"run"</span><span·class="p">,</span><span·class="w">·</span><span·class="s">[·...·truncated·by·diffoscope;·len:·483,·SHA:·bd2a1b6ffe9aa0b685fa58c2154c63dafaa43473c23eff8fa9f682920f2735e2·...·]-8">)</span><span·class="p">,</span><span·class="w"> |
| 217 | ····</span><span·class="p"·data-group-id=" | 217 | ····</span><span·class="p"·data-group-id="2518067146-12">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Peer2</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Node2</span><span·class="p"·data-group-id="2518067146-12">}</span><[·...·truncated·by·diffoscope;·len:·252,·SHA:·8a614d01a4ffaa6cfb96d04f80c46aef71a010e39c615f72caa93df8a05a9bf0·...·]-14">#{</span><span·class="ss">name</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">lambda</span><span·class="p">,</span><span·class="w"> |
| 218 | ········</span><span·class="ss">connection</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">standard_io</span><span·class="p">,</span><span·class="w"> | 218 | ········</span><span·class="ss">connection</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">standard_io</span><span·class="p">,</span><span·class="w"> |
| 219 | ········</span><span·class="ss">exec</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id=" | 219 | ········</span><span·class="ss">exec</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="2518067146-15">{</span><span·class="n">Docker</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2518067146-16">[</span><span·class="s">"run"</span><span·class="p">,</span><span·class="w">·</span><span·class="s">[·...·truncated·by·diffoscope;·len:·484,·SHA:·58e38c1ab95e5cfa9172712ebe6c665d4a3819a588aea7d2de5be93d54a56425·...·]-13">)</span><span·class="p">,</span><span·class="w"> |
| 220 | ····</span><span·class="c1">%%·find·IP·address·of·the·second·node·using·alternative·connection·RPC</span><span·class="w"> | 220 | ····</span><span·class="c1">%%·find·IP·address·of·the·second·node·using·alternative·connection·RPC</span><span·class="w"> |
| 221 | ····</span><span·class="p"·data-group-id=" | 221 | ····</span><span·class="p"·data-group-id="2518067146-17">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Ips</span><span·class="p"·data-group-id="2518067146-17">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·c[·...·truncated·by·diffoscope;·len:·510,·SHA:·d3eb8c147a97a015d54cedcdd1352294d74cc6efb324f0d5035c895eb81bbb89·...·]-18">)</span><span·class="p">,</span><span·class="w"> |
| 222 | ····</span><span·class="p"·data-group-id=" | 222 | ····</span><span·class="p"·data-group-id="2518067146-20">{</span><span·class="s">"eth0"</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Eth0</span><span·class="p"·data-group-id="2518067146-20">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·[·...·truncated·by·diffoscope;·len:·372,·SHA:·0281abc2dad7744e81769253887841f27cc77c52c1edc63d59ff2dc2a0d84269·...·]-21">)</span><span·class="p">,</span><span·class="w"> |
| 223 | ····</span><span·class="p"·data-group-id=" | 223 | ····</span><span·class="p"·data-group-id="2518067146-22">{</span><span·class="ss">addr</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Ip</span><span·class="p"·data-group-id="2518067146-22">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·[·...·truncated·by·diffoscope;·len:·349,·SHA:·d5ba5cba5dbde2a17b94243e7af04dfd5f36303756a95abd5e77aa4eee97b146·...·]-23">)</span><span·class="p">,</span><span·class="w"> |
| 224 | ····</span><span·class="c1">%%·make·first·node·to·discover·second·one</span><span·class="w"> | 224 | ····</span><span·class="c1">%%·make·first·node·to·discover·second·one</span><span·class="w"> |
| 225 | ····</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">peer</span><span·class="p">:</span><span·class="nf">call</span><span·class="p"·data-group-id=" | 225 | ····</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">peer</span><span·class="p">:</span><span·class="nf">call</span><span·class="p"·data-group-id="2518067146-24">(</span><span·class="n">Peer</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">inet_db</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">set_lookup</span><span·class="p">,</span><span·class="w">·</sp[·...·truncated·by·diffoscope;·len:·288,·SHA:·a89050625c16dbd6db747de39321b583b37bf34e07ffcab676dcebd58cb0c05e·...·]-24">)</span><span·class="p">,</span><span·class="w"> |
| 226 | ····</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">peer</span><span·class="p">:</span><span·class="nf">call</span><span·class="p"·data-group-id=" | 226 | ····</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">peer</span><span·class="p">:</span><span·class="nf">call</span><span·class="p"·data-group-id="2518067146-27">(</span><span·class="n">Peer</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">inet_db</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">add_host</span><span·class="p">,</span><span·class="w">·</span[·...·truncated·by·diffoscope;·len:·369,·SHA:·c636b2c07d87fa1092fbc08aa93122ebd42d4fb589199da2a970d9ca9d838671·...·]-27">)</span><span·class="p">,</span><span·class="w"> |
| 227 | ····</span><span·class="c1">%%·join·a·cluster</span><span·class="w"> | 227 | ····</span><span·class="c1">%%·join·a·cluster</span><span·class="w"> |
| 228 | ····</span><span·class="ss">true</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">peer</span><span·class="p">:</span><span·class="nf">call</span><span·class="p"·data-group-id=" | 228 | ····</span><span·class="ss">true</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">peer</span><span·class="p">:</span><span·class="nf">call</span><span·class="p"·data-group-id="2518067146-30">(</span><span·class="n">Peer</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">net_kernel</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">connect_node</span><span·class="p">,</span><span·class="w">[·...·truncated·by·diffoscope;·len:·185,·SHA:·86ab0dc2c6211e041d29b9cfd717fd3bb226f7150116e9a195ecf14f7ab466f5·...·]-30">)</span><span·class="p">,</span><span·class="w"> |
| 229 | ····</span><span·class="c1">%%·verify·that·second·peer·node·has·only·the·first·node·visible</span><span·class="w"> | 229 | ····</span><span·class="c1">%%·verify·that·second·peer·node·has·only·the·first·node·visible</span><span·class="w"> |
| 230 | ····</span><span·class="p"·data-group-id=" | 230 | ····</span><span·class="p"·data-group-id="2518067146-32">[</span><span·class="n">Node</span><span·class="p"·data-group-id="2518067146-32">]</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">peer</span><span·class="p">:</span><span·class="nf">call</span>[·...·truncated·by·diffoscope;·len:·434,·SHA:·e65c953fe014538b911d70dd6d391af89fece9d8cb865cbb54ac20e20c5378b5·...·]-33">)</span><span·class="p">,</span><span·class="w"> |
| 231 | ····</span><span·class="c1">%%·stop·peers,·causing·containers·to·also·stop</span><span·class="w"> | 231 | ····</span><span·class="c1">%%·stop·peers,·causing·containers·to·also·stop</span><span·class="w"> |
| 232 | ····</span><span·class="nc">peer</span><span·class="p">:</span><span·class="nf">stop</span><span·class="p"·data-group-id=" | 232 | ····</span><span·class="nc">peer</span><span·class="p">:</span><span·class="nf">stop</span><span·class="p"·data-group-id="2518067146-35">(</span><span·class="n">Peer2</span><span·class="p"·data-group-id="2518067146-35">)</span><span·class="p">,</span><span·class="w"> |
| 233 | ····</span><span·class="nc">peer</span><span·class="p">:</span><span·class="nf">stop</span><span·class="p"·data-group-id=" | 233 | ····</span><span·class="nc">peer</span><span·class="p">:</span><span·class="nf">stop</span><span·class="p"·data-group-id="2518067146-36">(</span><span·class="n">Peer</span><span·class="p"·data-group-id="2518067146-36">)</span><span·class="p">.</span><span·class="w"> |
| 234 | </span><span·class="nf">build_release</span><span·class="p"·data-group-id=" | 234 | </span><span·class="nf">build_release</span><span·class="p"·data-group-id="2518067146-37">(</span><span·class="n">Dir</span><span·class="p"·data-group-id="2518067146-37">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 235 | ····</span><span·class="c1">%%·load·sasl.app·file,·otherwise·application:get_key·will·fail</span><span·class="w"> | 235 | ····</span><span·class="c1">%%·load·sasl.app·file,·otherwise·application:get_key·will·fail</span><span·class="w"> |
| 236 | ····</span><span·class="nc">application</span><span·class="p">:</span><span·class="nf">load</span><span·class="p"·data-group-id=" | 236 | ····</span><span·class="nc">application</span><span·class="p">:</span><span·class="nf">load</span><span·class="p"·data-group-id="2518067146-38">(</span><span·class="ss">sasl</span><span·class="p"·data-group-id="2518067146-38">)</span><span·class="p">,</span><span·class="w"> |
| 237 | ····</span><span·class="c1">%%·create·*.rel·-·release·file</span><span·class="w"> | 237 | ····</span><span·class="c1">%%·create·*.rel·-·release·file</span><span·class="w"> |
| 238 | ····</span><span·class="n">RelFile</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">join</span><span·class="p"·data-group-id=" | 238 | ····</span><span·class="n">RelFile</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">join</span><span·class="p"·data-group-id="2518067146-39">(</span><span·class="n">Dir</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"lambda.rel"</span><span·class="p"·data-group-id="2518067146-39">)</span><span·class="p">,</span><span·class="w"> |
| 239 | ····</span><span·class="n">Release</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 239 | ····</span><span·class="n">Release</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="2518067146-40">{</span><span·class="ss">release</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2518067146-41">{</span><span·class="s">"lambda"</span><span·class="p">,</span><span·class="w">·</span><span·class[·...·truncated·by·diffoscope;·len:·70,·SHA:·80c0a3e1f9f1f2b85e452804839d9546bbd6d7ffd4ccd33739483b4c934f85c1·...·]-41">}</span><span·class="p">,</span><span·class="w"> |
| 240 | ········</span><span·class="p"·data-group-id=" | 240 | ········</span><span·class="p"·data-group-id="2518067146-42">{</span><span·class="ss">erts</span><span·class="p">,</span><span·class="w">·</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">system_info</span><span·class="p"·data-group-id="2518067146-43">(</span><span·class="s[·...·truncated·by·diffoscope;·len:·112,·SHA:·ea0af5ad90bef4bd1dc73281ec3ea72391efb9cb574aa0152492abba27557d16·...·]-42">}</span><span·class="p">,</span><span·class="w"> |
| 241 | ········</span><span·class="p"·data-group-id=" | 241 | ········</span><span·class="p"·data-group-id="2518067146-44">[</span><span·class="p"·data-group-id="2518067146-45">{</span><span·class="n">App</span><span·class="p">,</span><span·class="w">·</span><span·class="k">begin</span><span·class="w">·</span><span·class="p"·data-group-id="2518067146-46">{</span[·...·truncated·by·diffoscope;·len:·691,·SHA:·60da3ac469474732b108910edfd628777763338e643dbf73530af7314e82b80e·...·]-45">}</span><span·class="w"> |
| 242 | ············</span><span·class="p">||</span><span·class="w">·</span><span·class="n">App</span><span·class="w">·</span><span·class="o"><-</span><span·class="w">·</span><span·class="p"·data-group-id=" | 242 | ············</span><span·class="p">||</span><span·class="w">·</span><span·class="n">App</span><span·class="w">·</span><span·class="o"><-</span><span·class="w">·</span><span·class="p"·data-group-id="2518067146-48">[</span><span·class="ss">kernel</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">stdlib</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">sasl</span><span·class="p"·data-group-id="2518067146-48">]</[·...·truncated·by·diffoscope;·len:·100,·SHA:·ede491b5403f88ee52cd5e91acbe8e427c915c1262d09a1f9252fd32c7cb8570·...·]-40">}</span><span·class="p">,</span><span·class="w"> |
| 243 | ····</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">file</span><span·class="p">:</span><span·class="nf">write_file</span><span·class="p"·data-group-id=" | 243 | ····</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">file</span><span·class="p">:</span><span·class="nf">write_file</span><span·class="p"·data-group-id="2518067146-49">(</span><span·class="n">RelFile</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">list_to_binary</span><span·class="p"·data-group-id="2518067146-50">(</span><span·class="nc">lists</span><span·class="p">:</span><span·clas[·...·truncated·by·diffoscope;·len:·62,·SHA:·1b81c1fcbceab77187798e425300bd06f409b38d9384be9a89d0f8870004aadd·...·]-51">(</span><span·class="w"> |
| 244 | ········</span><span·class="nc">io_lib</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 244 | ········</span><span·class="nc">io_lib</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="2518067146-52">(</span><span·class="s">"~tp."</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2518067146-53">[</span><span·class="n">Release</span><span·class="p"·data-group-id="2518067146-53">]</span><span·cl[·...·truncated·by·diffoscope;·len:·195,·SHA:·eaf5bfbe7da5e9b38825f19c69282c99132416d277ae54a899fcdc495beffea6·...·]-49">)</span><span·class="p">,</span><span·class="w"> |
| 245 | ····</span><span·class="n">RelFileNoExt</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">join</span><span·class="p"·data-group-id=" | 245 | ····</span><span·class="n">RelFileNoExt</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">join</span><span·class="p"·data-group-id="2518067146-54">(</span><span·class="n">Dir</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"lambda"</span><span·class="p"·data-group-id="2518067146-54">)</span><span·class="p">,</span><span·class="w"> |
| 246 | ····</span><span·class="c1">%%·create·boot·script</span><span·class="w"> | 246 | ····</span><span·class="c1">%%·create·boot·script</span><span·class="w"> |
| 247 | ····</span><span·class="p"·data-group-id=" | 247 | ····</span><span·class="p"·data-group-id="2518067146-55">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">systools_make</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2518067146-56">[</span><span·class="p"·data[·...·truncated·by·diffoscope;·len:·292,·SHA:·bc2f771868da4bda636f9ceb0bcf901454bb0c0f4f2667c18020c495648a5125·...·]-57">(</span><span·class="n">RelFileNoExt</span><span·class="p">,</span><span·class="w"> |
| 248 | ········</span><span·class="p"·data-group-id=" | 248 | ········</span><span·class="p"·data-group-id="2518067146-58">[</span><span·class="ss">silent</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2518067146-59">{</span><span·class="ss">outdir</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Dir</sp[·...·truncated·by·diffoscope;·len:·152,·SHA:·fa68d868afa77420175ab6c4642d3adc68744cb9a53ea162e43e432df2071f47·...·]-57">)</span><span·class="p">,</span><span·class="w"> |
| 249 | ····</span><span·class="c1">%%·package·release·into·*.tar.gz</span><span·class="w"> | 249 | ····</span><span·class="c1">%%·package·release·into·*.tar.gz</span><span·class="w"> |
| 250 | ····</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">systools</span><span·class="p">:</span><span·class="nf">make_tar</span><span·class="p"·data-group-id=" | 250 | ····</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">systools</span><span·class="p">:</span><span·class="nf">make_tar</span><span·class="p"·data-group-id="2518067146-60">(</span><span·class="n">RelFileNoExt</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2518067146-61">[</span><span·class="p"·data-group-id="2518067146-62">{</span><span·class="ss">erts</span><span·class="p[·...·truncated·by·diffoscope;·len:·375,·SHA:·5ca10822775bb86f7acde30522ba9faf481ebd7acf891cb537de02e28822ea87·...·]-60">)</span><span·class="p">.</span><span·class="w"> |
| 251 | </span><span·class="nf">build_image</span><span·class="p"·data-group-id=" | 251 | </span><span·class="nf">build_image</span><span·class="p"·data-group-id="2518067146-64">(</span><span·class="n">Dir</span><span·class="p"·data-group-id="2518067146-64">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 252 | ····</span><span·class="c1">%%·Create·Dockerfile·example,·working·only·for·Ubuntu·20.04</span><span·class="w"> | 252 | ····</span><span·class="c1">%%·Create·Dockerfile·example,·working·only·for·Ubuntu·20.04</span><span·class="w"> |
| 253 | ····</span><span·class="c1">%%·Expose·port·4445,·and·make·Erlang·distribution·to·listen</span><span·class="w"> | 253 | ····</span><span·class="c1">%%·Expose·port·4445,·and·make·Erlang·distribution·to·listen</span><span·class="w"> |
| 254 | ····</span><span·class="c1">%%··on·this·port,·and·connect·to·it·without·EPMD</span><span·class="w"> | 254 | ····</span><span·class="c1">%%··on·this·port,·and·connect·to·it·without·EPMD</span><span·class="w"> |
| 255 | ····</span><span·class="c1">%%·Set·cookie·on·both·nodes·to·be·the·same.</span><span·class="w"> | 255 | ····</span><span·class="c1">%%·Set·cookie·on·both·nodes·to·be·the·same.</span><span·class="w"> |
| 256 | ····</span><span·class="n">BuildScript</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">join</span><span·class="p"·data-group-id=" | 256 | ····</span><span·class="n">BuildScript</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">filename</span><span·class="p">:</span><span·class="nf">join</span><span·class="p"·data-group-id="2518067146-65">(</span><span·class="n">Dir</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"Dockerfile"</span><span·class="p"·data-group-id="2518067146-65">)</span><span·class="p">,</span><span·class="w"> |
| 257 | ····</span><span·class="n">Dockerfile</span><span·class="w">·</span><span·class="o">=</span><span·class="w"> | 257 | ····</span><span·class="n">Dockerfile</span><span·class="w">·</span><span·class="o">=</span><span·class="w"> |
| 258 | ······</span><span·class="s">"FROM·ubuntu:20.04·as·runner\n"</span><span·class="w"> | 258 | ······</span><span·class="s">"FROM·ubuntu:20.04·as·runner\n"</span><span·class="w"> |
| 259 | ······</span><span·class="s">"EXPOSE·4445\n"</span><span·class="w"> | 259 | ······</span><span·class="s">"EXPOSE·4445\n"</span><span·class="w"> |
| 260 | ······</span><span·class="s">"WORKDIR·/opt/lambda\n"</span><span·class="w"> | 260 | ······</span><span·class="s">"WORKDIR·/opt/lambda\n"</span><span·class="w"> |
| 261 | ······</span><span·class="s">"COPY·lambda.tar.gz·/tmp\n"</span><span·class="w"> | 261 | ······</span><span·class="s">"COPY·lambda.tar.gz·/tmp\n"</span><span·class="w"> |
| 262 | ······</span><span·class="s">"RUN·tar·-zxvf·/tmp/lambda.tar.gz·-C·/opt/lambda\n"</span><span·class="w"> | 262 | ······</span><span·class="s">"RUN·tar·-zxvf·/tmp/lambda.tar.gz·-C·/opt/lambda\n"</span><span·class="w"> |
| 263 | ······</span><span·class="s">"ENTRYPOINT·[\"/opt/lambda/erts-"</span><span·class="w">·</span><span·class="o">++</span><span·class="w">·</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">system_info</span><span·class="p"·data-group-id=" | 263 | ······</span><span·class="s">"ENTRYPOINT·[\"/opt/lambda/erts-"</span><span·class="w">·</span><span·class="o">++</span><span·class="w">·</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">system_info</span><span·class="p"·data-group-id="2518067146-66">(</span><span·class="ss">version</span><span·class="p"·data-group-id="2518067146-66">)</span><span·class="w">·</span><span·class="o">++</span><span·class="w"> |
| 264 | ······</span><span·class="s">"/bin/dyn_erl\",·\"-boot\",·\"/opt/lambda/releases/1.0.0/start\","</span><span·class="w"> | 264 | ······</span><span·class="s">"/bin/dyn_erl\",·\"-boot\",·\"/opt/lambda/releases/1.0.0/start\","</span><span·class="w"> |
| 265 | ······</span><span·class="s">"·\"-kernel\",·\"inet_dist_listen_min\",·\"4445\","</span><span·class="w"> | 265 | ······</span><span·class="s">"·\"-kernel\",·\"inet_dist_listen_min\",·\"4445\","</span><span·class="w"> |
| 266 | ······</span><span·class="s">"·\"-erl_epmd_port\",·\"4445\","</span><span·class="w"> | 266 | ······</span><span·class="s">"·\"-erl_epmd_port\",·\"4445\","</span><span·class="w"> |
| 267 | ······</span><span·class="s">"·\"-setcookie\",·\"secret\"]\n"</span><span·class="p">,</span><span·class="w"> | 267 | ······</span><span·class="s">"·\"-setcookie\",·\"secret\"]\n"</span><span·class="p">,</span><span·class="w"> |
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| Offset 495, 15 lines modified | Offset 495, 15 lines modified | ||
| 495 | ······<p·class="built-using"> | 495 | ······<p·class="built-using"> |
| 496 | ········Built·using | 496 | ········Built·using |
| 497 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 497 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 498 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 498 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 499 | ······</p> | 499 | ······</p> |
| 500 | <p>Copyright·©·1996-202 | 500 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 501 | ····</footer> | 501 | ····</footer> |
| 502 | ··</div> | 502 | ··</div> |
| 503 | </main> | 503 | </main> |
| 504 | </div> | 504 | </div> |
| 505 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 505 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 506 | ··<script> | 506 | ··<script> |
| 507 | ··let·initialized·=·false; | 507 | ··let·initialized·=·false; |
| Offset 969, 29 lines modified | Offset 969, 29 lines modified | ||
| 969 | the·start·function·used.</p><p>If·neither·this·function·nor·<a·href="#init_fail/3"><code·class="inline">init_fail/2,3</code></a>·is·called·by·the | 969 | the·start·function·used.</p><p>If·neither·this·function·nor·<a·href="#init_fail/3"><code·class="inline">init_fail/2,3</code></a>·is·called·by·the |
| 970 | started·process,·the·start·function·returns·an·error·tuple·when·the·started | 970 | started·process,·the·start·function·returns·an·error·tuple·when·the·started |
| 971 | process·exits,·or·when·the·start·function·time-out·(if·used)·has·passed,·see | 971 | process·exits,·or·when·the·start·function·time-out·(if·used)·has·passed,·see |
| 972 | <a·href="#start/5"><code·class="inline">start/3,4,5</code></a>.</p><section·role="note"·class="admonition·warning"><h4·class="admonition-title·warning">Warning</h4><p>Do·not·use·this·function·to·return·an·error·indicating·that·the·process·start | 972 | <a·href="#start/5"><code·class="inline">start/3,4,5</code></a>.</p><section·role="note"·class="admonition·warning"><h4·class="admonition-title·warning">Warning</h4><p>Do·not·use·this·function·to·return·an·error·indicating·that·the·process·start |
| 973 | failed.·When·doing·so·the·start·function·can·return·before·the·failing·process | 973 | failed.·When·doing·so·the·start·function·can·return·before·the·failing·process |
| 974 | has·exited,·which·may·block·VM·resources·required·for·a·new·start·attempt·to | 974 | has·exited,·which·may·block·VM·resources·required·for·a·new·start·attempt·to |
| 975 | succeed.·Use·<a·href="#init_fail/3"><code·class="inline">init_fail/2,3</code></a>·for·that·purpose.</p></section><p>The·following·example·illustrates·how·this·function·and·<a·href="#start_link/3"><code·class="inline">proc_lib:start_link/3</code></a> | 975 | succeed.·Use·<a·href="#init_fail/3"><code·class="inline">init_fail/2,3</code></a>·for·that·purpose.</p></section><p>The·following·example·illustrates·how·this·function·and·<a·href="#start_link/3"><code·class="inline">proc_lib:start_link/3</code></a> |
| 976 | are·used:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 976 | are·used:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="0378176306-1">(</span><span·class="ss">my_proc</span><span·class="p"·data-group-id="0378176306-1">)</span><span·class="p">.</span><span·class="w"> |
| 977 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 977 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="0378176306-2">(</span><span·class="p"·data-group-id="0378176306-3">[</span><span·class="ss">start_link</span><span·class="p">/</span><span·class="mi">0</span><span·class="p"·data-group-id="0378176306-3">]</span><span·class="p"·data-group-id="0378176306-2">)</span><span·class="p">.</span><span·class="w"> |
| 978 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 978 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="0378176306-4">(</span><span·class="p"·data-group-id="0378176306-5">[</span><span·class="ss">init</span><span·class="p">/</span><span·class="mi">1</span><span·class="p"·data-group-id="0378176306-5">]</span><span·class="p"·data-group-id="0378176306-4">)</span><span·class="p">.</span><span·class="w"> |
| 979 | </span><span·class="nf">start_link</span><span·class="p"·data-group-id=" | 979 | </span><span·class="nf">start_link</span><span·class="p"·data-group-id="0378176306-6">(</span><span·class="p"·data-group-id="0378176306-6">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 980 | ····</span><span·class="nc">proc_lib</span><span·class="p">:</span><span·class="nf">start_link</span><span·class="p"·data-group-id=" | 980 | ····</span><span·class="nc">proc_lib</span><span·class="p">:</span><span·class="nf">start_link</span><span·class="p"·data-group-id="0378176306-7">(</span><span·class="ss">my_proc</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">init</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0378176306-8">[</span><span·class="nf">self</spa[·...·truncated·by·diffoscope;·len:·202,·SHA:·03281dda7cb2c292810770223559450dc07f9b6affec95c4d916a91adccbdf56·...·]-7">)</span><span·class="p">.</span><span·class="w"> |
| 981 | </span><span·class="nf">init</span><span·class="p"·data-group-id=" | 981 | </span><span·class="nf">init</span><span·class="p"·data-group-id="0378176306-10">(</span><span·class="n">Parent</span><span·class="p"·data-group-id="0378176306-10">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 982 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nf">do_initialization</span><span·class="p"·data-group-id=" | 982 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nf">do_initialization</span><span·class="p"·data-group-id="0378176306-11">(</span><span·class="p"·data-group-id="0378176306-11">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 983 | ········</span><span·class="ss">ok</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 983 | ········</span><span·class="ss">ok</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 984 | ············</span><span·class="nc">proc_lib</span><span·class="p">:</span><span·class="nf">init_ack</span><span·class="p"·data-group-id=" | 984 | ············</span><span·class="nc">proc_lib</span><span·class="p">:</span><span·class="nf">init_ack</span><span·class="p"·data-group-id="0378176306-12">(</span><span·class="n">Parent</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0378176306-13">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">self</span>[·...·truncated·by·diffoscope;·len:·203,·SHA:·f0d46b8606df560b13127109a2823f371dd76d4099f8bc4ff806954fcaf26040·...·]-12">)</span><span·class="p">;</span><span·class="w"> |
| 985 | ········</span><span·class="p"·data-group-id=" | 985 | ········</span><span·class="p"·data-group-id="0378176306-15">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Reason</span><span·class="p"·data-group-id="0378176306-15">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 986 | ············</span><span·class="nf">exit</span><span·class="p"·data-group-id=" | 986 | ············</span><span·class="nf">exit</span><span·class="p"·data-group-id="0378176306-16">(</span><span·class="n">Reason</span><span·class="p"·data-group-id="0378176306-16">)</span><span·class="w"> |
| 987 | ····</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> | 987 | ····</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> |
| 988 | ····</span><span·class="nf">loop</span><span·class="p"·data-group-id=" | 988 | ····</span><span·class="nf">loop</span><span·class="p"·data-group-id="0378176306-17">(</span><span·class="p"·data-group-id="0378176306-17">)</span><span·class="p">.</span><span·class="w"> |
| 989 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span></code></pre> | 989 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span></code></pre> |
| 990 | ··</section> | 990 | ··</section> |
| 991 | </section> | 991 | </section> |
| 992 | <section·class="detail"·id="init_fail/2"> | 992 | <section·class="detail"·id="init_fail/2"> |
| 993 | ··<div·class="detail-header"> | 993 | ··<div·class="detail-header"> |
| Offset 1052, 29 lines modified | Offset 1052, 29 lines modified | ||
| 1052 | to·<code·class="inline">Exception</code>.·The·start·function·then·returns·<code·class="inline">Ret</code>.</p><p>See·<a·href="../../../../erts-16.0/doc/html/erlang.html#raise/3"><code·class="inline">erlang:raise/3</code></a>·for·a·description·of·<code·class="inline">Class</code>,·<code·class="inline">Reason</code>·and·<code·class="inline">Stacktrace</code>.</p><section·role="note"·class="admonition·warning"><h4·class="admonition-title·warning">Warning</h4><p>Do·not·consider·catching·the·exception·from·this·function.·That·would·defeat | 1052 | to·<code·class="inline">Exception</code>.·The·start·function·then·returns·<code·class="inline">Ret</code>.</p><p>See·<a·href="../../../../erts-16.0/doc/html/erlang.html#raise/3"><code·class="inline">erlang:raise/3</code></a>·for·a·description·of·<code·class="inline">Class</code>,·<code·class="inline">Reason</code>·and·<code·class="inline">Stacktrace</code>.</p><section·role="note"·class="admonition·warning"><h4·class="admonition-title·warning">Warning</h4><p>Do·not·consider·catching·the·exception·from·this·function.·That·would·defeat |
| 1053 | its·purpose.·A·process·started·by·a·<a·href="#start/3"><code·class="inline">start[_link|_monitor]/3,4,5</code></a> | 1053 | its·purpose.·A·process·started·by·a·<a·href="#start/3"><code·class="inline">start[_link|_monitor]/3,4,5</code></a> |
| 1054 | function·should·end·in·a·value·(that·will·be·ignored)·or·an·exception·that | 1054 | function·should·end·in·a·value·(that·will·be·ignored)·or·an·exception·that |
| 1055 | will·be·handled·by·this·module.·See·<a·href="proc_lib.html">Description</a>.</p></section><p>If·neither·this·function·nor·<a·href="#init_ack/1"><code·class="inline">init_ack/1,2</code></a>·is·called·by·the | 1055 | will·be·handled·by·this·module.·See·<a·href="proc_lib.html">Description</a>.</p></section><p>If·neither·this·function·nor·<a·href="#init_ack/1"><code·class="inline">init_ack/1,2</code></a>·is·called·by·the |
| 1056 | started·process,·the·start·function·returns·an·error·tuple·when·the·started | 1056 | started·process,·the·start·function·returns·an·error·tuple·when·the·started |
| 1057 | process·exits,·or·when·the·start·function·time-out·(if·used)·has·passed,·see | 1057 | process·exits,·or·when·the·start·function·time-out·(if·used)·has·passed,·see |
| 1058 | <a·href="#start/3"><code·class="inline">start/3,4,5</code></a>.</p><p>The·following·example·illustrates·how·this·function·and·<a·href="#start_link/3"><code·class="inline">proc_lib:start_link/3</code></a> | 1058 | <a·href="#start/3"><code·class="inline">start/3,4,5</code></a>.</p><p>The·following·example·illustrates·how·this·function·and·<a·href="#start_link/3"><code·class="inline">proc_lib:start_link/3</code></a> |
| 1059 | can·be·used:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 1059 | can·be·used:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="2633867868-1">(</span><span·class="ss">my_proc</span><span·class="p"·data-group-id="2633867868-1">)</span><span·class="p">.</span><span·class="w"> |
| 1060 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="0258089645-2">(</span><span·class="p"·data-group-id="0258089645-3">[</span><span·class="ss">start_link</span><span·class="p">/</span><span·class="mi">0</span><span·class="p"·data-group-id="0258089645-3">]</span><span·class="p"·data-group-id="0258089645-2">)</span><span·class="p">.</span><span·class="w"> | ||
| 1061 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 1060 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="2633867868-2">(</span><span·class="p"·data-group-id="2633867868-3">[</span><span·class="ss">start_link</span><span·class="p">/</span><span·class="mi">0</span><span·class="p"·data-group-id="2633867868-3">]</span><span·class="p"·data-group-id="2633867868-2">)</span><span·class="p">.</span><span·class="w"> |
| 1061 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="2633867868-4">(</span><span·class="p"·data-group-id="2633867868-5">[</span><span·class="ss">init</span><span·class="p">/</span><span·class="mi">1</span><span·class="p"·data-group-id="2633867868-5">]</span><span·class="p"·data-group-id="2633867868-4">)</span><span·class="p">.</span><span·class="w"> | ||
| 1062 | </span><span·class="nf">start_link</span><span·class="p"·data-group-id=" | 1062 | </span><span·class="nf">start_link</span><span·class="p"·data-group-id="2633867868-6">(</span><span·class="p"·data-group-id="2633867868-6">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 1063 | ····</span><span·class="nc">proc_lib</span><span·class="p">:</span><span·class="nf">start_link</span><span·class="p"·data-group-id=" | 1063 | ····</span><span·class="nc">proc_lib</span><span·class="p">:</span><span·class="nf">start_link</span><span·class="p"·data-group-id="2633867868-7">(</span><span·class="ss">my_proc</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">init</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2633867868-8">[</span><span·class="nf">self</spa[·...·truncated·by·diffoscope;·len:·202,·SHA:·a787c7da281f180395c51e99632f90ec8b2d1fe1bb940f89e0bb85d1565b6a6b·...·]-7">)</span><span·class="p">.</span><span·class="w"> |
| 1064 | </span><span·class="nf">init</span><span·class="p"·data-group-id=" | 1064 | </span><span·class="nf">init</span><span·class="p"·data-group-id="2633867868-10">(</span><span·class="n">Parent</span><span·class="p"·data-group-id="2633867868-10">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 1065 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nf">do_initialization</span><span·class="p"·data-group-id=" | 1065 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nf">do_initialization</span><span·class="p"·data-group-id="2633867868-11">(</span><span·class="p"·data-group-id="2633867868-11">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 1066 | ········</span><span·class="ss">ok</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 1066 | ········</span><span·class="ss">ok</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 1067 | ············</span><span·class="nc">proc_lib</span><span·class="p">:</span><span·class="nf">init_ack</span><span·class="p"·data-group-id=" | 1067 | ············</span><span·class="nc">proc_lib</span><span·class="p">:</span><span·class="nf">init_ack</span><span·class="p"·data-group-id="2633867868-12">(</span><span·class="n">Parent</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2633867868-13">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">self</span>[·...·truncated·by·diffoscope;·len:·203,·SHA:·c3a46920d3990cddba2adc1be58ece0d32b5268303419da20a04ede728b1e763·...·]-12">)</span><span·class="p">;</span><span·class="w"> |
| 1068 | ········</span><span·class="p"·data-group-id=" | 1068 | ········</span><span·class="p"·data-group-id="2633867868-15">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Reason</span><span·class="p"·data-group-id="2633867868-15">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">Error</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 1069 | ············</span><span·class="nc">proc_lib</span><span·class="p">:</span><span·class="nf">init_fail</span><span·class="p"·data-group-id=" | 1069 | ············</span><span·class="nc">proc_lib</span><span·class="p">:</span><span·class="nf">init_fail</span><span·class="p"·data-group-id="2633867868-16">(</span><span·class="n">Parent</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Error</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2633867868-17">{</span><span·class="nb">exit</spa[·...·truncated·by·diffoscope;·len:·175,·SHA:·0e36bf24cf75a5ceec57db1219eadd9240f335a213fe2e942deb20a0fa7d163a·...·]-16">)</span><span·class="w"> |
| 1070 | ····</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> | 1070 | ····</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> |
| 1071 | ····</span><span·class="nf">loop</span><span·class="p"·data-group-id=" | 1071 | ····</span><span·class="nf">loop</span><span·class="p"·data-group-id="2633867868-18">(</span><span·class="p"·data-group-id="2633867868-18">)</span><span·class="p">.</span><span·class="w"> |
| 1072 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span></code></pre> | 1072 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span></code></pre> |
| 1073 | ··</section> | 1073 | ··</section> |
| 1074 | </section> | 1074 | </section> |
| 1075 | <section·class="detail"·id="initial_call/1"> | 1075 | <section·class="detail"·id="initial_call/1"> |
| 1076 | ··<div·class="detail-header"> | 1076 | ··<div·class="detail-header"> |
| Offset 1948, 15 lines modified | Offset 1948, 15 lines modified | ||
| 1948 | ······<p·class="built-using"> | 1948 | ······<p·class="built-using"> |
| 1949 | ········Built·using | 1949 | ········Built·using |
| 1950 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1950 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1951 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1951 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1952 | ······</p> | 1952 | ······</p> |
| 1953 | <p>Copyright·©·1996-202 | 1953 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1954 | ····</footer> | 1954 | ····</footer> |
| 1955 | ··</div> | 1955 | ··</div> |
| 1956 | </main> | 1956 | </main> |
| 1957 | </div> | 1957 | </div> |
| 1958 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1958 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1959 | ··<script> | 1959 | ··<script> |
| 1960 | ··let·initialized·=·false; | 1960 | ··let·initialized·=·false; |
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| 522 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·append_values(Key,·ListIn)·->·ListOut·when·Key·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>(),·ListIn·::·[<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>()],·ListOut·::·[<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>()].</pre> | 522 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·append_values(Key,·ListIn)·->·ListOut·when·Key·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>(),·ListIn·::·[<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>()],·ListOut·::·[<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>()].</pre> |
| 523 | ······</div> | 523 | ······</div> |
| 524 | <p>Similar·to·<a·href="#get_all_values/2"><code·class="inline">get_all_values/2</code></a>,·but·each·value·is·wrapped·in·a·list·unless·it·is | 524 | <p>Similar·to·<a·href="#get_all_values/2"><code·class="inline">get_all_values/2</code></a>,·but·each·value·is·wrapped·in·a·list·unless·it·is |
| 525 | already·itself·a·list.·The·resulting·list·of·lists·is·concatenated.·This·is | 525 | already·itself·a·list.·The·resulting·list·of·lists·is·concatenated.·This·is |
| 526 | often·useful·for·"incremental"·options.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">append_values</span><span·class="p"·data-group-id=" | 526 | often·useful·for·"incremental"·options.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">append_values</span><span·class="p"·data-group-id="2206367771-1">(</span><span·class="ss">a</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2206367771-2">[</span><span·class="p"·data-group-id="2206367771-3">{</span><span·class="ss">a</span><span·class="p">,</span><span·[·...·truncated·by·diffoscope;·len:·1837,·SHA:·7bbb98cd49d57563bcc2ffd48ad7f80ca2652e654d8aae2b55ef421d801e38ed·...·]-1">]</span></code></pre> |
| 527 | ··</section> | 527 | ··</section> |
| 528 | </section> | 528 | </section> |
| 529 | <section·class="detail"·id="compact/1"> | 529 | <section·class="detail"·id="compact/1"> |
| 530 | ··<div·class="detail-header"> | 530 | ··<div·class="detail-header"> |
| 531 | ····<a·href="#compact/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 531 | ····<a·href="#compact/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 532 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 532 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 610, 18 lines modified | Offset 610, 18 lines modified | ||
| 610 | ······</div> | 610 | ······</div> |
| 611 | <p>Expands·particular·properties·to·corresponding·sets·of·properties·(or·other | 611 | <p>Expands·particular·properties·to·corresponding·sets·of·properties·(or·other |
| 612 | terms).</p><p>For·each·pair·<code·class="inline">{Property,·Expansion}</code>·in·<code·class="inline">Expansions</code>:·if·<code·class="inline">E</code>·is·the | 612 | terms).</p><p>For·each·pair·<code·class="inline">{Property,·Expansion}</code>·in·<code·class="inline">Expansions</code>:·if·<code·class="inline">E</code>·is·the |
| 613 | first·entry·in·<code·class="inline">ListIn</code>·with·the·same·key·as·<code·class="inline">Property</code>,·and·<code·class="inline">E</code>·and·<code·class="inline">Property</code> | 613 | first·entry·in·<code·class="inline">ListIn</code>·with·the·same·key·as·<code·class="inline">Property</code>,·and·<code·class="inline">E</code>·and·<code·class="inline">Property</code> |
| 614 | have·equivalent·normal·forms,·then·<code·class="inline">E</code>·is·replaced·with·the·terms·in | 614 | have·equivalent·normal·forms,·then·<code·class="inline">E</code>·is·replaced·with·the·terms·in |
| 615 | <code·class="inline">Expansion</code>,·and·any·following·entries·with·the·same·key·are·deleted·from | 615 | <code·class="inline">Expansion</code>,·and·any·following·entries·with·the·same·key·are·deleted·from |
| 616 | <code·class="inline">ListIn</code>.</p><p>For·example,·the·following·expressions·all·return·<code·class="inline">[fie,·bar,·baz,·fum]</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">expand</span><span·class="p"·data-group-id="2344711692-1">(</span><span·class="p"·data-group-id="2344711692-2">[</span><span·class="p"·data-group-id="2344711692-3">{</span><span·class="ss">foo</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2344711692-4">[</span><span·class="ss">bar</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">baz</span><span·class="p"·data-group-id="2344711692-4">]</span><span·class="p"·data-group-id="2344711692-3">}</span><span·class="p"·data-group-id="2344711692-2">]</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2344711692-5">[</span><span·class="ss">fie</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">foo</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">fum</span><span·class="p"·data-group-id="2344711692-5">]</span><span·class="p"·data-group-id="2344711692-1">)</span><span·class="w"> | ||
| 617 | </span><span·class="nf">expand</span><span·class="p"·data-group-id="2344711692-6">(</span><span·class="p"·data-group-id="2344711692-7">[</span><span·class="p"·data-group-id="2344711692-8">{</span><span·class="p"·data-group-id="2344711692-9">{</span><span·class="ss">foo</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">true</span><span·class="p"·data-group-id="2344711692-9">}</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2344711692-10">[</span><span·class="ss">bar</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">baz</span><span·class="p"·data-group-id="2344711692-10">]</span><span·class="p"·data-group-id="2344711692-8">}</span><span·class="p"·data-group-id="2344711692-7">]</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2344711692-11">[</span><span·class="ss">fie</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">foo</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">fum</span><span·class="p"·data-group-id="2344711692-11">]</span><span·class="p"·data-group-id="2344711692-6">)</span><span·class="w"> | ||
| 618 | </span><span·class="nf">expand</span><span·class="p"·data-group-id="2344711692-12">(</span><span·class="p"·data-group-id="2344711692-13">[</span><span·class="p"·data-group-id="2344711692-14">{</span><span·class="p"·data-group-id="2344711692-15">{</span><span·class="ss">foo</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">false</span><span·class="p"·data-group-id="2344711692-15">}</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2344711692-16">[</span><span·class="ss">bar</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">baz</span><span·class="p"·data-group-id="2344711692-16">]</span><span·class="p"·data-group-id="2344711692-14">}</span><span·class="p"·data-group-id="2344711692-13">]</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2344711692-17">[</span><span·class="ss">fie</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2344711692-18">{</span><span·class="ss">foo</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">false</span><span·class="p"·data-group-id="2344711692-18">}</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">fum</span><span·class="p"·data-group-id="2344711692-17">]</span><span·class="p"·data-group-id="2344711692-12">)</span></code></pre><p>However,·no·expansion·is·done·in·the·following·call·because·<code·class="inline">{foo,·false}</code> | ||
| 619 | 616 | <code·class="inline">ListIn</code>.</p><p>For·example,·the·following·expressions·all·return·<code·class="inline">[fie,·bar,·baz,·fum]</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">expand</span><span·class="p"·data-group-id="83[·...·truncated·by·diffoscope;·len:·915,·SHA:·d0507b42bd672ca9cda90b1a260f0233ab46d71f1e68c071a42d2e510605411e·...·] | |
| 617 | </span><span·class="nf">expand</span><span·class="p"·data-group-id="8372491051-6">(</span><span·class="p"·data-group-id="8372491051-7">[</span><span·class="p"·data-group-id="8372491051-8">{</span><span·class="p"·data-group-id="8372491051-9">{</span><span·class="ss">foo</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">true</span><span·class="p"·data-group-id="8372491051-9">}</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8372491051-10">[</span><span·class="ss">bar</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">baz</span><span·class="p"·data-group-id="8372491051-10">]</span><span·class="p"·data-group-id="8372491051-8">}</span><span·class="p"·data-group-id="8372491051-7">]</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8372491051-11">[</span><span·class="ss">fie</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">foo</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">fum</span><span·class="p"·data-group-id="8372491051-11">]</span><span·class="p"·data-group-id="8372491051-6">)</span><span·class="w"> | ||
| 618 | </span><span·class="nf">expand</span><span·class="p"·data-group-id="8372491051-12">(</span><span·class="p"·data-group-id="8372491051-13">[</span><span·class="p"·data-group-id="8372491051-14">{</span><span·class="p"·data-group-id="8372491051-15">{</span><span·class="ss">foo</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">false</span><span·class="p"·data-group-id="8372491051-15">}</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8372491051-16">[</span><span·class="ss">bar</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">baz</span><span·class="p"·data-group-id="8372491051-16">]</span><span·class="p"·data-group-id="8372491051-14">}</span><span·class="p"·data-group-id="8372491051-13">]</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8372491051-17">[</span><span·class="ss">fie</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8372491051-18">{</span><span·class="ss">foo</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">false</span><span·class="p"·data-group-id="8372491051-18">}</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">fum</span><span·class="p"·data-group-id="8372491051-17">]</span><span·class="p"·data-group-id="8372491051-12">)</span></code></pre><p>However,·no·expansion·is·done·in·the·following·call·because·<code·class="inline">{foo,·false}</code> | ||
| 619 | shadows·<code·class="inline">foo</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">expand</span><span·class="p"·data-group-id="1834966941-1">(</span><span·class="p"·data-group-id="1834966941-2">[</span><span·class="p"·data-group-id="1834966941-3">{</span><span·class="p"·data-group-id="1834966941-4">{</span><span·class="ss">foo</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">true</span><span·class="p"·data-group-id="1834966941-4">}</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1834966941-5">[</span><span·class="ss">bar</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">baz</span><span·class="p"·data-group-id="1834966941-5">]</span><span·class="p"·data-group-id="1834966941-3">}</span><span·class="p"·data-group-id="1834966941-2">]</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1834966941-6">[</span><span·class="p"·data-group-id="1834966941-7">{</span><span·class="ss">foo</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">false</span><span·class="p"·data-group-id="1834966941-7">}</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">fie</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">foo</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">fum</span><span·class="p"·data-group-id="1834966941-6">]</span><span·class="p"·data-group-id="1834966941-1">)</span></code></pre><p>Notice·that·if·the·original·property·term·is·to·be·preserved·in·the·result·when | ||
| 620 | expanded,·it·must·be·included·in·the·expansion·list.·The·inserted·terms·are·not | 620 | expanded,·it·must·be·included·in·the·expansion·list.·The·inserted·terms·are·not |
| 621 | expanded·recursively.·If·<code·class="inline">Expansions</code>·contains·more·than·one·property·with·the | 621 | expanded·recursively.·If·<code·class="inline">Expansions</code>·contains·more·than·one·property·with·the |
| 622 | same·key,·only·the·first·occurrence·is·used.</p><p>See·also·<a·href="#normalize/2"><code·class="inline">normalize/2</code></a>.</p> | 622 | same·key,·only·the·first·occurrence·is·used.</p><p>See·also·<a·href="#normalize/2"><code·class="inline">normalize/2</code></a>.</p> |
| 623 | ··</section> | 623 | ··</section> |
| 624 | </section> | 624 | </section> |
| 625 | <section·class="detail"·id="from_map/1"> | 625 | <section·class="detail"·id="from_map/1"> |
| Offset 992, 15 lines modified | Offset 992, 15 lines modified | ||
| 992 | ···············when·List·::·[<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>()],·Keys·::·[<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>()],·Lists·::·[[<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>()]],·Rest·::·[<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>()].</pre> | 992 | ···············when·List·::·[<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>()],·Keys·::·[<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>()],·Lists·::·[[<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>()]],·Rest·::·[<a·href="../../../../erts-16.0/doc/html/erlang.html#t:term/0">term</a>()].</pre> |
| 993 | ······</div> | 993 | ······</div> |
| 994 | <p>Partitions·<code·class="inline">List</code>·into·a·list·of·sublists·and·a·remainder.</p><p><code·class="inline">Lists</code>·contains·one·sublist·for·each·key·in·<code·class="inline">Keys</code>,·in·the·corresponding·order. | 994 | <p>Partitions·<code·class="inline">List</code>·into·a·list·of·sublists·and·a·remainder.</p><p><code·class="inline">Lists</code>·contains·one·sublist·for·each·key·in·<code·class="inline">Keys</code>,·in·the·corresponding·order. |
| 995 | The·relative·order·of·the·elements·in·each·sublist·is·preserved·from·the·original·<code·class="inline">List</code>. | 995 | The·relative·order·of·the·elements·in·each·sublist·is·preserved·from·the·original·<code·class="inline">List</code>. |
| 996 | <code·class="inline">Rest</code>·contains·the·elements·in·<code·class="inline">List</code>·that·are·not·associated·with·any·of·the | 996 | <code·class="inline">Rest</code>·contains·the·elements·in·<code·class="inline">List</code>·that·are·not·associated·with·any·of·the |
| 997 | specified·keys,·also·with·their·original·relative·order·preserved.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">split</span><span·class="p"·data-group-id="43 | 997 | specified·keys,·also·with·their·original·relative·order·preserved.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">split</span><span·class="p"·data-group-id="4300747536-1">(</span><span·class="p"·data-group-id="4300747536-2">[</span><span·class="p"·data-group-id="4300747536-3">{</span><span·class="ss">c</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">2</span><span·class="p"·data-group-id="4[·...·truncated·by·diffoscope;·len:·3430,·SHA:·fa33a1667dff808b11851eab200ecca15c718bdb4eeaec66836b4c5774507e1e·...·]-1">}</span></code></pre> |
| 998 | ··</section> | 998 | ··</section> |
| 999 | </section> | 999 | </section> |
| 1000 | <section·class="detail"·id="substitute_aliases/2"> | 1000 | <section·class="detail"·id="substitute_aliases/2"> |
| 1001 | ··<div·class="detail-header"> | 1001 | ··<div·class="detail-header"> |
| 1002 | ····<a·href="#substitute_aliases/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 1002 | ····<a·href="#substitute_aliases/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 1003 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 1003 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
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| 1109 | ······</div> | 1109 | ······</div> |
| 1110 | <p>Converts·the·property·list·<code·class="inline">List</code>·to·a·map.</p><p>Shorthand·atom·values·in·<code·class="inline">List</code>·will·be·expanded·to·an·association·of·the·form | 1110 | <p>Converts·the·property·list·<code·class="inline">List</code>·to·a·map.</p><p>Shorthand·atom·values·in·<code·class="inline">List</code>·will·be·expanded·to·an·association·of·the·form |
| 1111 | <code·class="inline">Atom·=>·true</code>.·Tuples·of·the·form·<code·class="inline">{Key,·Value}</code>·in·<code·class="inline">List</code>·will·be·converted·to | 1111 | <code·class="inline">Atom·=>·true</code>.·Tuples·of·the·form·<code·class="inline">{Key,·Value}</code>·in·<code·class="inline">List</code>·will·be·converted·to |
| 1112 | an·association·of·the·form·<code·class="inline">Key·=>·Value</code>.·Anything·else·will·be·silently | 1112 | an·association·of·the·form·<code·class="inline">Key·=>·Value</code>.·Anything·else·will·be·silently |
| 1113 | ignored.</p><p>If·the·same·key·appears·in·<code·class="inline">List</code>·multiple·times,·the·value·of·the·one·appearing | 1113 | ignored.</p><p>If·the·same·key·appears·in·<code·class="inline">List</code>·multiple·times,·the·value·of·the·one·appearing |
| 1114 | nearest·to·the·head·of·<code·class="inline">List</code>·will·be·in·the·result·map,·that·is·the·value·that | 1114 | nearest·to·the·head·of·<code·class="inline">List</code>·will·be·in·the·result·map,·that·is·the·value·that |
| 1115 | would·be·returned·by·a·call·to·<a·href="#get_value/2"><code·class="inline">get_value(Key,·List)</code></a>.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">to_map</span><span·class="p"·data-group-id=" | 1115 | would·be·returned·by·a·call·to·<a·href="#get_value/2"><code·class="inline">get_value(Key,·List)</code></a>.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">to_map</span><span·class="p"·data-group-id="2289245010-1">(</span><span·class="p"·data-group-id="2289245010-2">[</span><span·class="ss">a</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2289245010-3">{</span><span·class="ss">b</span><span·class="p">,</span><span·[·...·truncated·by·diffoscope;·len:·1354,·SHA:·8785fecaf3e00cfb4057564303b7233a625c55be506224a7060efbf71384b6c0·...·]-1">}</span></code></pre> |
| 1116 | ··</section> | 1116 | ··</section> |
| 1117 | </section> | 1117 | </section> |
| 1118 | <section·class="detail"·id="to_map/2"> | 1118 | <section·class="detail"·id="to_map/2"> |
| 1119 | ··<div·class="detail-header"> | 1119 | ··<div·class="detail-header"> |
| 1120 | ····<a·href="#to_map/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 1120 | ····<a·href="#to_map/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 1121 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 1121 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
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| 1201 | ······<p·class="built-using"> | 1201 | ······<p·class="built-using"> |
| 1202 | ········Built·using | 1202 | ········Built·using |
| 1203 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1203 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1204 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1204 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1205 | ······</p> | 1205 | ······</p> |
| 1206 | <p>Copyright·©·1996-202 | 1206 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1207 | ····</footer> | 1207 | ····</footer> |
| 1208 | ··</div> | 1208 | ··</div> |
| 1209 | </main> | 1209 | </main> |
| 1210 | </div> | 1210 | </div> |
| 1211 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1211 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1212 | ··<script> | 1212 | ··<script> |
| 1213 | ··let·initialized·=·false; | 1213 | ··let·initialized·=·false; |
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| 197 | or·be·an·explicit·argument·and·return·value.</p><p>The·functions·with·implicit·state·operates·on·a·state·stored | 197 | or·be·an·explicit·argument·and·return·value.</p><p>The·functions·with·implicit·state·operates·on·a·state·stored |
| 198 | in·the·process·dictionary·under·the·key·<code·class="inline">rand_seed</code>.··If·that·key | 198 | in·the·process·dictionary·under·the·key·<code·class="inline">rand_seed</code>.··If·that·key |
| 199 | doesn't·exist·when·the·function·is·called,·<a·href="#seed/1"><code·class="inline">seed/1</code></a>·is·called·automatically | 199 | doesn't·exist·when·the·function·is·called,·<a·href="#seed/1"><code·class="inline">seed/1</code></a>·is·called·automatically |
| 200 | with·the·<a·href="#default-algorithm"><em>default·algorithm</em></a>·and·creates | 200 | with·the·<a·href="#default-algorithm"><em>default·algorithm</em></a>·and·creates |
| 201 | a·reasonably·unpredictable·seed.</p><p>The·functions·with·explicit·state·don't·use·the·process·dictionary.</p><h4><em>Examples</em></h4><p>Simple·use;·create·and·seed·the | 201 | a·reasonably·unpredictable·seed.</p><p>The·functions·with·explicit·state·don't·use·the·process·dictionary.</p><h4><em>Examples</em></h4><p>Simple·use;·create·and·seed·the |
| 202 | <a·href="#default-algorithm"><em>default·algorithm</em></a>·with·a·non-fixed·seed, | 202 | <a·href="#default-algorithm"><em>default·algorithm</em></a>·with·a·non-fixed·seed, |
| 203 | if·not·already·done,·and·generate·two·uniformly·distibuted | 203 | if·not·already·done,·and·generate·two·uniformly·distibuted |
| 204 | floating·point·numbers.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">R0</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">rand</span><span·class="p">:</span><span·class="nf">uniform</span><span·class="p"·data-group-id=" | 204 | floating·point·numbers.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">R0</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">rand</span><span·class="p">:</span><span·class="nf">uniform</span><span·class="p"·data-group-id="0483550460-1">(</span><span·class="p"·data-group-id="0483550460-1">)</span><span·class="p">,</span><span·class="w"> |
| 205 | </span><span·class="n">R1</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">rand</span><span·class="p">:</span><span·class="nf">uniform</span><span·class="p"·data-group-id=" | 205 | </span><span·class="n">R1</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">rand</span><span·class="p">:</span><span·class="nf">uniform</span><span·class="p"·data-group-id="0483550460-2">(</span><span·class="p"·data-group-id="0483550460-2">)</span><span·class="p">,</span></code></pre><p>Use·a·specified·algorithm:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">_</span><span·class="w">·</span><span·class="o"[·...·truncated·by·diffoscope;·len:·240,·SHA:·36755e6db96d2dc7171b8cde6bf6e514433a898536d7f09761ac6539c4272ef4·...·]-1">)</span><span·class="p">,</span><span·class="w"> |
| 206 | </span><span·class="n">R2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">rand</span><span·class="p">:</span><span·class="nf">uniform</span><span·class="p"·data-group-id=" | 206 | </span><span·class="n">R2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">rand</span><span·class="p">:</span><span·class="nf">uniform</span><span·class="p"·data-group-id="0105548279-2">(</span><span·class="p"·data-group-id="0105548279-2">)</span><span·class="p">,</span></code></pre><p>Use·a·specified·algorithm·with·a·fixed·seed:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">_</span><span·class="w">·</sp[·...·truncated·by·diffoscope;·len:·595,·SHA:·dfd8fe098a05090aab109c4dc0655390de7107bb788466be3bba5025210776e7·...·]-1">)</span><span·class="p">,</span><span·class="w"> |
| 207 | </span><span·class="n">R3</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">rand</span><span·class="p">:</span><span·class="nf">uniform</span><span·class="p"·data-group-id=" | 207 | </span><span·class="n">R3</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">rand</span><span·class="p">:</span><span·class="nf">uniform</span><span·class="p"·data-group-id="4657491640-3">(</span><span·class="p"·data-group-id="4657491640-3">)</span><span·class="p">,</span></code></pre><p>Use·the·functional·API·with·a·non-fixed·seed:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">S0</span><span·class="w">·</[·...·truncated·by·diffoscope;·len:·258,·SHA:·d0d5d5e9f500b980dfbf178a84454bbaa062c84a627148b17fafbcf61e29eae7·...·]-1">)</span><span·class="p">,</span><span·class="w"> |
| 208 | </span><span·class="p"·data-group-id=" | 208 | </span><span·class="p"·data-group-id="0045881636-2">{</span><span·class="n">R4</span><span·class="p">,</span><span·class="w">·</span><span·class="n">S1</span><span·class="p"·data-group-id="0045881636-2">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class[·...·truncated·by·diffoscope;·len:·654,·SHA:·bb820e091fd3db50dee97033e0d0c1e879d62a21275b2c24fe7e0b05c31043d7·...·]-1">)</span><span·class="p">,</span><span·class="w"> |
| 209 | </span><span·class="n">R6</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">rand</span><span·class="p">:</span><span·class="nf">uniform</span><span·class="p"·data-group-id=" | 209 | </span><span·class="n">R6</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">rand</span><span·class="p">:</span><span·class="nf">uniform</span><span·class="p"·data-group-id="1359702448-2">(</span><span·class="p"·data-group-id="1359702448-2">)</span><span·class="p">,</span><span·class="w"> |
| 210 | </span><span·class="n">SND0</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">math</span><span·class="p">:</span><span·class="nf">sqrt</span><span·class="p"·data-group-id=" | 210 | </span><span·class="n">SND0</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">math</span><span·class="p">:</span><span·class="nf">sqrt</span><span·class="p"·data-group-id="1359702448-3">(</span><span·class="o">-</span><span·class="mi">2</span><span·class="w">·</span><span·class="o">*</span><span·class="w">·</span><span·class="nc">math</span><span·class="p">:</span><span·class="nf">log</span><span·class="p"·data-group-id="135[·...·truncated·by·diffoscope;·len:·2113,·SHA:·02a88a16988228a004b232d523e56e198eeaace103a75140263f3c1402d975e1·...·]-2">)</span><span·class="p">,</span></code></pre><h4>Quality·of·the·Generated·Numbers</h4><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>The·builtin·random·number·generator·algorithms·are·not·cryptographically |
| 211 | strong.·If·a·cryptographically·strong·random·number·generator·is·needed, | 211 | strong.·If·a·cryptographically·strong·random·number·generator·is·needed, |
| 212 | use·something·like·<a·href="../../../../lib/crypto-5.6/doc/html/crypto.html#rand_seed/0"><code·class="inline">crypto:rand_seed/0</code></a>.</p></section><p>For·all·these·generators·except·<code·class="inline">exro928ss</code>·and·<code·class="inline">exsss</code>·the·lowest·bit(s) | 212 | use·something·like·<a·href="../../../../lib/crypto-5.6/doc/html/crypto.html#rand_seed/0"><code·class="inline">crypto:rand_seed/0</code></a>.</p></section><p>For·all·these·generators·except·<code·class="inline">exro928ss</code>·and·<code·class="inline">exsss</code>·the·lowest·bit(s) |
| 213 | have·got·a·slightly·less·random·behaviour·than·all·other·bits. | 213 | have·got·a·slightly·less·random·behaviour·than·all·other·bits. |
| 214 | 1·bit·for·<code·class="inline">exrop</code>·(and·<code·class="inline">exsp</code>),·and·3·bits·for·<code·class="inline">exs1024s</code>.·See·for·example | 214 | 1·bit·for·<code·class="inline">exrop</code>·(and·<code·class="inline">exsp</code>),·and·3·bits·for·<code·class="inline">exs1024s</code>.·See·for·example |
| 215 | this·explanation·in·the | 215 | this·explanation·in·the |
| 216 | <a·href="http://xoroshiro.di.unimi.it/xoroshiro128plus.c">Xoroshiro128+</a> | 216 | <a·href="http://xoroshiro.di.unimi.it/xoroshiro128plus.c">Xoroshiro128+</a> |
| 217 | generator·source·code:</p><blockquote><p>Beside·passing·BigCrush,·this·generator·passes·the·PractRand·test·suite | 217 | generator·source·code:</p><blockquote><p>Beside·passing·BigCrush,·this·generator·passes·the·PractRand·test·suite |
| 218 | up·to·(and·included)·16TB,·with·the·exception·of·binary·rank·tests, | 218 | up·to·(and·included)·16TB,·with·the·exception·of·binary·rank·tests, |
| 219 | which·fail·due·to·the·lowest·bit·being·an·LFSR;·all·other·bits·pass·all | 219 | which·fail·due·to·the·lowest·bit·being·an·LFSR;·all·other·bits·pass·all |
| 220 | tests.·We·suggest·to·use·a·sign·test·to·extract·a·random·Boolean·value.</p></blockquote><p>If·this·is·a·problem;·to·generate·a·boolean·with·these·algorithms, | 220 | tests.·We·suggest·to·use·a·sign·test·to·extract·a·random·Boolean·value.</p></blockquote><p>If·this·is·a·problem;·to·generate·a·boolean·with·these·algorithms, |
| 221 | use·something·like·this:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 221 | use·something·like·this:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="4093446895-1">(</span><span·class="nc">rand</span><span·class="p">:</span><span·class="nf">uniform</span><span·class="p"·data-group-id="4093446895-2">(</span><span·class="mi">256</span><span·class="p"·data-group-id="4093446895-2">)</span><span·class="w">·<[·...·truncated·by·diffoscope;·len:·2110,·SHA:·feb1ec05171cc263f869269dc74a97ba1c38b07e859e9d54f6e3a021b848014d·...·]-1">)</span></code></pre><p>The·floating·point·generating·functions·in·this·module·waste·the·lowest·bits |
| 222 | when·converting·from·an·integer·so·they·avoid·this·snag.</p><h2·id="module-niche-algorithms"·class="section-heading"> | 222 | when·converting·from·an·integer·so·they·avoid·this·snag.</p><h2·id="module-niche-algorithms"·class="section-heading"> |
| 223 | ··<a·href="#module-niche-algorithms"·class="hover-link"> | 223 | ··<a·href="#module-niche-algorithms"·class="hover-link"> |
| 224 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 224 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 225 | ··</a> | 225 | ··</a> |
| 226 | ··<span·class="text"><a·href=""·id="niche-algorithms"></a>·Niche·algorithms</span> | 226 | ··<span·class="text"><a·href=""·id="niche-algorithms"></a>·Niche·algorithms</span> |
| 227 | </h2> | 227 | </h2> |
| 228 | <p>The·<a·href="#niche-algorithms-api">niche·algorithms·API</a>·contains | 228 | <p>The·<a·href="#niche-algorithms-api">niche·algorithms·API</a>·contains |
| Offset 1386, 15 lines modified | Offset 1386, 15 lines modified | ||
| 1386 | a·new·state·<a·href="#t:mwc59_state/0"><code·class="inline">CX1</code></a>,·according·to·a·Multiply·With·Carry | 1386 | a·new·state·<a·href="#t:mwc59_state/0"><code·class="inline">CX1</code></a>,·according·to·a·Multiply·With·Carry |
| 1387 | generator,·which·is·an·efficient·implementation·of | 1387 | generator,·which·is·an·efficient·implementation·of |
| 1388 | a·Multiplicative·Congruential·Generator·with·a·power·of·2·multiplier | 1388 | a·Multiplicative·Congruential·Generator·with·a·power·of·2·multiplier |
| 1389 | and·a·prime·modulus.</p><p>This·generator·uses·the·multiplier·<code·class="inline">2^32</code>·and·the·modulus | 1389 | and·a·prime·modulus.</p><p>This·generator·uses·the·multiplier·<code·class="inline">2^32</code>·and·the·modulus |
| 1390 | <code·class="inline">16#7fa6502 * 2^32 - 1</code>,·which·have·been·selected,·in·collaboration·with | 1390 | <code·class="inline">16#7fa6502 * 2^32 - 1</code>,·which·have·been·selected,·in·collaboration·with |
| 1391 | Sebastiano·Vigna,·to·avoid·bignum·operations·and·still·get | 1391 | Sebastiano·Vigna,·to·avoid·bignum·operations·and·still·get |
| 1392 | good·statistical·quality.·It·has·been·named·"MWC59"·and·can·be·written·as:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">C</span><span·class="err"> </span><span·class="o">=</span><span·class="err"> </span><span·class="n">CX0</span><span·class="err"> </span><span·class="ow">bsr</span><span·class="err"> </span><span·class="mi">32</span><span·class="w"> | 1392 | good·statistical·quality.·It·has·been·named·"MWC59"·and·can·be·written·as:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">C</span><span·class="err"> </span><span·class="o">=</span><span·class="err"> </span><span·class="n">CX0</span><span·class="err"> </span><span·class="ow">bsr</span><span·class="err"> </span><span·class="mi">32</span><span·class="w"> |
| 1393 | </span><span·class="n">X</span><span·class="err"> </span><span·class="o">=</span><span·class="err"> </span><span·class="n">CX0</span><span·class="err"> </span><span·class="ow">band</span><span·class="err"> </span><span·class="p"·data-group-id=" | 1393 | </span><span·class="n">X</span><span·class="err"> </span><span·class="o">=</span><span·class="err"> </span><span·class="n">CX0</span><span·class="err"> </span><span·class="ow">band</span><span·class="err"> </span><span·class="p"·data-group-id="7366471105-1">(</span><span·class="p"·data-group-id="7366471105-2">(</span><span·class="mi">1</span><span·class="err"> </span><span·class="ow">bsl</span><span·class="err"> </span><span·class="mi">32</span><span·class="p"·data-group-id="7366471105-2">)</spa[·...·truncated·by·diffoscope;·len:·92,·SHA:·e4bce3730abcb591b6aca0f85d94cbfd3261717d34437d2ecc368968578c138f·...·]-1">)</span><span·class="p">)</span><span·class="w"> |
| 1394 | </span><span·class="n">CX1</span><span·class="err"> </span><span·class="o">=</span><span·class="err"> </span><span·class="mi">16#7fa6502</span><span·class="err"> </span><span·class="o">*</span><span·class="err"> </span><span·class="n">X</span><span·class="err"> </span><span·class="o">+</span><span·class="err"> </span><span·class="n">C</span></code></pre><p>Because·the·generator·uses·a·multiplier·that·is·a·power·of·2·it·gets | 1394 | </span><span·class="n">CX1</span><span·class="err"> </span><span·class="o">=</span><span·class="err"> </span><span·class="mi">16#7fa6502</span><span·class="err"> </span><span·class="o">*</span><span·class="err"> </span><span·class="n">X</span><span·class="err"> </span><span·class="o">+</span><span·class="err"> </span><span·class="n">C</span></code></pre><p>Because·the·generator·uses·a·multiplier·that·is·a·power·of·2·it·gets |
| 1395 | statistical·flaws·for·collision·tests·and·birthday·spacings·tests | 1395 | statistical·flaws·for·collision·tests·and·birthday·spacings·tests |
| 1396 | in·2·and·3·dimensions,·and·these·caveats·apply·even·when·looking | 1396 | in·2·and·3·dimensions,·and·these·caveats·apply·even·when·looking |
| 1397 | only·at·the·MWC·"digit",·that·is·the·low·32·bits·(the·multiplier) | 1397 | only·at·the·MWC·"digit",·that·is·the·low·32·bits·(the·multiplier) |
| 1398 | of·the·generator·state.··The·higher·bits·of·the·state·are·worse.</p><p>The·quality·of·the·output·value·improves·much·by·using·a·scrambler, | 1398 | of·the·generator·state.··The·higher·bits·of·the·state·are·worse.</p><p>The·quality·of·the·output·value·improves·much·by·using·a·scrambler, |
| 1399 | instead·of·just·taking·the·low·bits. | 1399 | instead·of·just·taking·the·low·bits. |
| 1400 | Function·<a·href="#mwc59_value32/1"><code·class="inline">mwc59_value32</code></a>·is·a·fast·scrambler | 1400 | Function·<a·href="#mwc59_value32/1"><code·class="inline">mwc59_value32</code></a>·is·a·fast·scrambler |
| Offset 2222, 18 lines modified | Offset 2222, 18 lines modified | ||
| 2222 | <p>Generate·a·uniformly·distributed·random·number·<code·class="inline">0.0 =< X < 1.0</code>.</p><p>From·the·specified·<code·class="inline">State</code>,·generates·a·random·number·<code·class="inline">X ::</code> <a·href="../../../../erts-16.0/doc/html/erlang.html#t:float/0"><code·class="inline">float/0</code></a>, | 2222 | <p>Generate·a·uniformly·distributed·random·number·<code·class="inline">0.0 =< X < 1.0</code>.</p><p>From·the·specified·<code·class="inline">State</code>,·generates·a·random·number·<code·class="inline">X ::</code> <a·href="../../../../erts-16.0/doc/html/erlang.html#t:float/0"><code·class="inline">float/0</code></a>, |
| 2223 | uniformly·distributed·in·the·value·range·<code·class="inline">0.0·=<·X·<·1.0</code>. | 2223 | uniformly·distributed·in·the·value·range·<code·class="inline">0.0·=<·X·<·1.0</code>. |
| 2224 | Returns·the·number·<code·class="inline">X</code>·and·the·updated·<code·class="inline">NewState</code>.</p><p>The·generated·numbers·are·of·the·form·<code·class="inline">N * 2.0^(-53)</code>,·that·is; | 2224 | Returns·the·number·<code·class="inline">X</code>·and·the·updated·<code·class="inline">NewState</code>.</p><p>The·generated·numbers·are·of·the·form·<code·class="inline">N * 2.0^(-53)</code>,·that·is; |
| 2225 | equally·spaced·in·the·interval.</p><section·role="note"·class="admonition·warning"><h4·class="admonition-title·warning">Warning</h4><p>This·function·may·return·exactly·<code·class="inline">0.0</code>·which·can·be·fatal·for·certain | 2225 | equally·spaced·in·the·interval.</p><section·role="note"·class="admonition·warning"><h4·class="admonition-title·warning">Warning</h4><p>This·function·may·return·exactly·<code·class="inline">0.0</code>·which·can·be·fatal·for·certain |
| 2226 | applications.·If·that·is·undesired·you·can·use·<code·class="inline">(1.0 - rand:uniform())</code> | 2226 | applications.·If·that·is·undesired·you·can·use·<code·class="inline">(1.0 - rand:uniform())</code> |
| 2227 | to·get·the·interval·<code·class="inline">0.0 < X =< 1.0</code>,·or·instead·use·<a·href="#uniform_real/0"><code·class="inline">uniform_real/0</code></a>.</p><p>If·neither·endpoint·is·desired·you·can·achieve·the·range | 2227 | to·get·the·interval·<code·class="inline">0.0 < X =< 1.0</code>,·or·instead·use·<a·href="#uniform_real/0"><code·class="inline">uniform_real/0</code></a>.</p><p>If·neither·endpoint·is·desired·you·can·achieve·the·range |
| 2228 | <code·class="inline">0.0 < X < 1.0</code>·using·test·and·re-try·like·this:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">my_uniform</span><span·class="p"·data-group-id=" | 2228 | <code·class="inline">0.0 < X < 1.0</code>·using·test·and·re-try·like·this:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">my_uniform</span><span·class="p"·data-group-id="3573609625-1">(</span><span·class="p"·data-group-id="3573609625-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 2229 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">rand</span><span·class="p">:</span><span·class="nf">uniform</span><span·class="p"·data-group-id=" | 2229 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">rand</span><span·class="p">:</span><span·class="nf">uniform</span><span·class="p"·data-group-id="3573609625-2">(</span><span·class="p"·data-group-id="3573609625-2">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 2230 | ········</span><span·class="n">X</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><span·class="mf">0.0</span><span·class="w">·</span><span·class="o"><</span><span·class="w">·</span><span·class="n">X</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">X</span><span·class="p">;</span><span·class="w"> | 2230 | ········</span><span·class="n">X</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><span·class="mf">0.0</span><span·class="w">·</span><span·class="o"><</span><span·class="w">·</span><span·class="n">X</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">X</span><span·class="p">;</span><span·class="w"> |
| 2231 | ········</span><span·class="p">_</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="nf">my_uniform</span><span·class="p"·data-group-id=" | 2231 | ········</span><span·class="p">_</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="nf">my_uniform</span><span·class="p"·data-group-id="3573609625-3">(</span><span·class="p"·data-group-id="3573609625-3">)</span><span·class="w"> |
| 2232 | ····</span><span·class="k">end</span><span·class="p">.</span></code></pre></section> | 2232 | ····</span><span·class="k">end</span><span·class="p">.</span></code></pre></section> |
| 2233 | ··</section> | 2233 | ··</section> |
| 2234 | </section> | 2234 | </section> |
| 2235 | <section·class="detail"·id="uniform_s/2"> | 2235 | <section·class="detail"·id="uniform_s/2"> |
| 2236 | ··<div·class="detail-header"> | 2236 | ··<div·class="detail-header"> |
| 2237 | ····<a·href="#uniform_s/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 2237 | ····<a·href="#uniform_s/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| Offset 2285, 15 lines modified | Offset 2285, 15 lines modified | ||
| 2285 | ······<p·class="built-using"> | 2285 | ······<p·class="built-using"> |
| 2286 | ········Built·using | 2286 | ········Built·using |
| 2287 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 2287 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 2288 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 2288 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 2289 | ······</p> | 2289 | ······</p> |
| 2290 | <p>Copyright·©·1996-202 | 2290 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 2291 | ····</footer> | 2291 | ····</footer> |
| 2292 | ··</div> | 2292 | ··</div> |
| 2293 | </main> | 2293 | </main> |
| 2294 | </div> | 2294 | </div> |
| 2295 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 2295 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 2296 | ··<script> | 2296 | ··<script> |
| 2297 | ··let·initialized·=·false; | 2297 | ··let·initialized·=·false; |
| Offset 458, 17 lines modified | Offset 458, 17 lines modified | ||
| 458 | ······<div·class="specs"> | 458 | ······<div·class="specs"> |
| 459 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·seed(A1,·A2,·A3)·->·undefined·|·<a·href="#t:ran/0">ran</a>()·when·A1·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:integer/0">integer</a>(),·A2·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:integer/0">integer</a>(),·A3·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:integer/0">integer</a>().</pre> | 459 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·seed(A1,·A2,·A3)·->·undefined·|·<a·href="#t:ran/0">ran</a>()·when·A1·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:integer/0">integer</a>(),·A2·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:integer/0">integer</a>(),·A3·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:integer/0">integer</a>().</pre> |
| 460 | ······</div> | 460 | ······</div> |
| 461 | <p>Seeds·random·number·generation·with·integer·values·in·the·process·dictionary·and | 461 | <p>Seeds·random·number·generation·with·integer·values·in·the·process·dictionary·and |
| 462 | returns·the·old·state.</p><p>The·following·is·an·easy·way·of·obtaining·a·unique·value·to·seed·with:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">random</span><span·class="p">:</span><span·class="nf">seed</span><span·class="p"·data-group-id=" | 462 | returns·the·old·state.</p><p>The·following·is·an·easy·way·of·obtaining·a·unique·value·to·seed·with:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">random</span><span·class="p">:</span><span·class="nf">seed</span><span·class="p"·data-group-id="4059517838-1">(</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">phash2</span><span·class="p"·data-group-id="4059517838-2">(</span><span·class="p"·data-group-id="4059517838-3">[</span><span·class="nf">node</span><span·class="p"·[·...·truncated·by·diffoscope;·len:·184,·SHA:·91962f5b7d56b359e8c9364381763e3847ce147814a44e67fb5324e98f809efb·...·]-2">)</span><span·class="p">,</span><span·class="w"> |
| 463 | ············</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">monotonic_time</span><span·class="p"·data-group-id=" | 463 | ············</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">monotonic_time</span><span·class="p"·data-group-id="4059517838-5">(</span><span·class="p"·data-group-id="4059517838-5">)</span><span·class="p">,</span><span·class="w"> |
| 464 | ············</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">unique_integer</span><span·class="p"·data-group-id=" | 464 | ············</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="nf">unique_integer</span><span·class="p"·data-group-id="4059517838-6">(</span><span·class="p"·data-group-id="4059517838-6">)</span><span·class="p"·data-group-id="4059517838-1">)</span></code></pre><p>For·details,·see·<a·href="../../../../erts-16.0/doc/html/erlang.html#phash2/1"><code·class="inline">erlang:phash2/1</code></a>,·<a·href="../../../../erts-16.0/doc/html/erlang.html#node/0"><code·class="inline">erlang:node/0</code></a>,·<a·href="../../../../erts-16.0/doc/html/erlang.html#monotonic_time/0"><code·class="inline">erlang:monotonic_time/0</code></a>, |
| 465 | and·<a·href="../../../../erts-16.0/doc/html/erlang.html#unique_integer/0"><code·class="inline">erlang:unique_integer/0</code></a>.</p> | 465 | and·<a·href="../../../../erts-16.0/doc/html/erlang.html#unique_integer/0"><code·class="inline">erlang:unique_integer/0</code></a>.</p> |
| 466 | ··</section> | 466 | ··</section> |
| 467 | </section> | 467 | </section> |
| 468 | <section·class="detail"·id="uniform/0"> | 468 | <section·class="detail"·id="uniform/0"> |
| 469 | ··<div·class="detail-header"> | 469 | ··<div·class="detail-header"> |
| 470 | ····<a·href="#uniform/0"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 470 | ····<a·href="#uniform/0"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| Offset 615, 15 lines modified | Offset 615, 15 lines modified | ||
| 615 | ······<p·class="built-using"> | 615 | ······<p·class="built-using"> |
| 616 | ········Built·using | 616 | ········Built·using |
| 617 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 617 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 618 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 618 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 619 | ······</p> | 619 | ······</p> |
| 620 | <p>Copyright·©·1996-202 | 620 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 621 | ····</footer> | 621 | ····</footer> |
| 622 | ··</div> | 622 | ··</div> |
| 623 | </main> | 623 | </main> |
| 624 | </div> | 624 | </div> |
| 625 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 625 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 626 | ··<script> | 626 | ··<script> |
| 627 | ··let·initialized·=·false; | 627 | ··let·initialized·=·false; |
| Offset 2551, 40 lines modified | Offset 2551, 40 lines modified | ||
| 2551 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·inspect(MP,·Item)·->·{namelist,·[<a·href="../../../../erts-16.0/doc/html/erlang.html#t:binary/0">binary</a>()]}·when·MP·::·<a·href="#t:mp/0">mp</a>(),·Item·::·namelist.</pre> | 2551 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·inspect(MP,·Item)·->·{namelist,·[<a·href="../../../../erts-16.0/doc/html/erlang.html#t:binary/0">binary</a>()]}·when·MP·::·<a·href="#t:mp/0">mp</a>(),·Item·::·namelist.</pre> |
| 2552 | ······</div> | 2552 | ······</div> |
| 2553 | <p>Takes·a·compiled·regular·expression·and·an·item,·and·returns·the·relevant·data | 2553 | <p>Takes·a·compiled·regular·expression·and·an·item,·and·returns·the·relevant·data |
| 2554 | from·the·regular·expression.</p><p>The·only·supported·item·is·<code·class="inline">namelist</code>,·which·returns·the·tuple·<code·class="inline">{namelist,·[binary()]}</code>, | 2554 | from·the·regular·expression.</p><p>The·only·supported·item·is·<code·class="inline">namelist</code>,·which·returns·the·tuple·<code·class="inline">{namelist,·[binary()]}</code>, |
| 2555 | containing·the·names·of·all·(unique)·named·subpatterns·in·the·regular·expression.</p><p>For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="p"·data-group-id=" | 2555 | containing·the·names·of·all·(unique)·named·subpatterns·in·the·regular·expression.</p><p>For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="p"·data-group-id="9609922751-1">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="n">MP</span><span·class="p"·data-group-id="9609922751-1">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">re</span><span·cl[·...·truncated·by·diffoscope;·len:·216,·SHA:·0d13c51b2f5981ac602ff02769157bdc8807f0d402d457b6d2a463798ab65cd6·...·]1-2">)</span><span·class="p">.</span><span·class="w"> |
| 2556 | </span><span·class="p"·data-group-id=" | 2556 | </span><span·class="p"·data-group-id="9609922751-3">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="p"·data-group-id="9609922751-4">{</span><span·class="ss">re_pattern</span><span·class="p">,</span><span·class="mi">3</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="w"> |
| 2557 | ················</span><span·class="p"·data-group-id=" | 2557 | ················</span><span·class="p"·data-group-id="9609922751-5"><<</span><span·class="mi">69</span><span·class="p">,</span><span·class="mi">82</span><span·class="p">,</span><span·class="mi">67</span><span·class="p">,</span><span·class="mi">80</span><span·class="p">,</span><span·class="mi">119</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">255</span><span·class="p">,</span><span·class="mi">255</span><span·class="p">,</span><span·class="mi">255</span><span·class="p">,</span><span·class="mi">255</span><span·class="p">,</span><span·class="w"> |
| 2558 | ··················</span><span·class="mi">255</span><span·class="p">,</span><span·class="mi">255</span><span·class="p">,</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p"·data-group-id=" | 2558 | ··················</span><span·class="mi">255</span><span·class="p">,</span><span·class="mi">255</span><span·class="p">,</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p"·data-group-id="9609922751-5">>></span><span·class="p"·data-group-id="9609922751-4">}</span><span·class="p"·data-group-id="9609922751-3">}</span><span·class="gp·unselectable"> |
| 2559 | 2>·</span><span·class="nc">re</span><span·class="p">:</span><span·class="nf">inspect</span><span·class="p"·data-group-id=" | 2559 | 2>·</span><span·class="nc">re</span><span·class="p">:</span><span·class="nf">inspect</span><span·class="p"·data-group-id="9609922751-6">(</span><span·class="n">MP</span><span·class="p">,</span><span·class="ss">namelist</span><span·class="p"·data-group-id="9609922751-6">)</span><span·class="p">.</span><span·class="w"> |
| 2560 | </span><span·class="p"·data-group-id=" | 2560 | </span><span·class="p"·data-group-id="9609922751-7">{</span><span·class="ss">namelist</span><span·class="p">,</span><span·class="p"·data-group-id="9609922751-8">[</span><span·class="p"·data-group-id="9609922751-9"><<</span><span·class="s">"A"</span><span·class="p"·data-group-id[·...·truncated·by·diffoscope;·len:·488,·SHA:·2f348bd5f326ba0c9a5f992fcee0a5bbd7bc99009f7bd58e5df7cd5c259cf4fe·...·]1-7">}</span><span·class="gp·unselectable"> |
| 2561 | 3>·</span><span·class="p"·data-group-id=" | 2561 | 3>·</span><span·class="p"·data-group-id="9609922751-12">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="n">MPD</span><span·class="p"·data-group-id="9609922751-12">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">re</span><span[·...·truncated·by·diffoscope;·len:·384,·SHA:·2d08f1b7965454db01b6c35292bb2160973eeb33c6c3d36e4aa53e0c639eeff5·...·]1-13">)</span><span·class="p">.</span><span·class="w"> |
| 2562 | </span><span·class="p"·data-group-id=" | 2562 | </span><span·class="p"·data-group-id="9609922751-15">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="p"·data-group-id="9609922751-16">{</span><span·class="ss">re_pattern</span><span·class="p">,</span><span·class="mi">3</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="w"> |
| 2563 | ················</span><span·class="p"·data-group-id=" | 2563 | ················</span><span·class="p"·data-group-id="9609922751-17"><<</span><span·class="mi">69</span><span·class="p">,</span><span·class="mi">82</span><span·class="p">,</span><span·class="mi">67</span><span·class="p">,</span><span·class="mi">80</span><span·class="p">,</span><span·class="mi">119</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">8</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">255</span><span·class="p">,</span><span·class="mi">255</span><span·class="p">,</span><span·class="mi">255</span><span·class="p">,</span><span·class="mi">255</span><span·class="p">,</span><span·class="w"> |
| 2564 | ··················</span><span·class="mi">255</span><span·class="p">,</span><span·class="mi">255</span><span·class="p">,</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p"·data-group-id=" | 2564 | ··················</span><span·class="mi">255</span><span·class="p">,</span><span·class="mi">255</span><span·class="p">,</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p"·data-group-id="9609922751-17">>></span><span·class="p"·data-group-id="9609922751-16">}</span><span·class="p"·data-group-id="9609922751-15">}</span><span·class="gp·unselectable"> |
| 2565 | 4>·</span><span·class="nc">re</span><span·class="p">:</span><span·class="nf">inspect</span><span·class="p"·data-group-id=" | 2565 | 4>·</span><span·class="nc">re</span><span·class="p">:</span><span·class="nf">inspect</span><span·class="p"·data-group-id="9609922751-18">(</span><span·class="n">MPD</span><span·class="p">,</span><span·class="ss">namelist</span><span·class="p"·data-group-id="9609922751-18">)</span><span·class="p">.</span><span·class="w"> |
| 2566 | </span><span·class="p"·data-group-id=" | 2566 | </span><span·class="p"·data-group-id="9609922751-19">{</span><span·class="ss">namelist</span><span·class="p">,</span><span·class="p"·data-group-id="9609922751-20">[</span><span·class="p"·data-group-id="9609922751-21"><<</span><span·class="s">"B"</span><span·class="p"·data-group[·...·truncated·by·diffoscope;·len:·311,·SHA:·ef2a4403d56591ff247535d10c419a0286827363b8f8bf7896562a3169f156e8·...·]1-19">}</span></code></pre><p>Notice·in·the·second·example·that·the·duplicate·name·only·occurs·once·in·the |
| 2567 | returned·list,·and·that·the·list·is·in·alphabetical·order·regardless·of·where | 2567 | returned·list,·and·that·the·list·is·in·alphabetical·order·regardless·of·where |
| 2568 | the·names·are·positioned·in·the·regular·expression.·The·order·of·the·names·is | 2568 | the·names·are·positioned·in·the·regular·expression.·The·order·of·the·names·is |
| 2569 | the·same·as·the·order·of·captured·subexpressions·if·<code·class="inline">{capture,·all_names}</code>·is | 2569 | the·same·as·the·order·of·captured·subexpressions·if·<code·class="inline">{capture,·all_names}</code>·is |
| 2570 | specified·as·an·option·to·<a·href="#run/3"><code·class="inline">run/3</code></a>.·You·can·therefore·create·a·name-to-value | 2570 | specified·as·an·option·to·<a·href="#run/3"><code·class="inline">run/3</code></a>.·You·can·therefore·create·a·name-to-value |
| 2571 | mapping·from·the·result·of·<a·href="#run/3"><code·class="inline">run/3</code></a>·like·this:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="p"·data-group-id="9 | 2571 | mapping·from·the·result·of·<a·href="#run/3"><code·class="inline">run/3</code></a>·like·this:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="p"·data-group-id="1984301363-1">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="n">MP</span><span·class="p"·data-group-id="1984301363-1">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">re</span><span·cl[·...·truncated·by·diffoscope;·len:·217,·SHA:·0a376fa1687e4ad73455328cf84530dcf39f716bd66130b91d17545bbf7bd4d8·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 2572 | </span><span·class="p"·data-group-id="9 | 2572 | </span><span·class="p"·data-group-id="1984301363-3">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="p"·data-group-id="1984301363-4">{</span><span·class="ss">re_pattern</span><span·class="p">,</span><span·class="mi">3</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="w"> |
| 2573 | ················</span><span·class="p"·data-group-id="9 | 2573 | ················</span><span·class="p"·data-group-id="1984301363-5"><<</span><span·class="mi">69</span><span·class="p">,</span><span·class="mi">82</span><span·class="p">,</span><span·class="mi">67</span><span·class="p">,</span><span·class="mi">80</span><span·class="p">,</span><span·class="mi">119</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">255</span><span·class="p">,</span><span·class="mi">255</span><span·class="p">,</span><span·class="mi">255</span><span·class="p">,</span><span·class="mi">255</span><span·class="p">,</span><span·class="w"> |
| 2574 | ··················</span><span·class="mi">255</span><span·class="p">,</span><span·class="mi">255</span><span·class="p">,</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p"·data-group-id="9 | 2574 | ··················</span><span·class="mi">255</span><span·class="p">,</span><span·class="mi">255</span><span·class="p">,</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p"·data-group-id="1984301363-5">>></span><span·class="p"·data-group-id="1984301363-4">}</span><span·class="p"·data-group-id="1984301363-3">}</span><span·class="gp·unselectable"> |
| 2575 | 2>·</span><span·class="p"·data-group-id="9 | 2575 | 2>·</span><span·class="p"·data-group-id="1984301363-6">{</span><span·class="ss">namelist</span><span·class="p">,</span><span·class="w">·</span><span·class="n">N</span><span·class="p"·data-group-id="1984301363-6">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span[·...·truncated·by·diffoscope;·len:·251,·SHA:·e390dfe4f9d4018f711188d619c6e6894d9ffbe52479f4707d6016f695892045·...·]-7">)</span><span·class="p">.</span><span·class="w"> |
| 2576 | </span><span·class="p"·data-group-id="9113082697-8">{</span><span·class="ss">namelist</span><span·class="p">,</span><span·class="p"·data-group-id="9113082697-9">[</span><span·class="p"·data-group-id="9113082697-10"><<</span><span·class="s">"A"</span><span·class="p"·data-group-id="9113082697-10">>></span><span·class="p">,</span><span·class="p"·data-group-id="9113082697-11"><<</span><span·class="s">"B"</span><span·class="p"·data-group-id="9113082697-11">>></span><span·class="p">,</span><span·class="p"·data-group-id="9113082697-12"><<</span><span·class="s">"C"</span><span·class="p"·data-group-id="9113082697-12">>></span><span·class="p"·data-group-id="9113082697-9">]</span><span·class="p"·data-group-id="9113082697-8">}</span><span·class="gp·unselectable"> | ||
| 2577 | 3>·</span><span·class="p"·data-group-id="9113082697-13">{</span><span·class="ss">match</span><span·class="p">,</span><span·class="n">L</span><span·class="p"·data-group-id="9113082697-13">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">re</span><span·class="p">:</span><span·class="nf">run</span><span·class="p"·data-group-id="9113082697-14">(</span><span·class="s">"AA"</span><span·class="p">,</span><span·class="n">MP</span><span·class="p">,</span><span·class="p"·data-group-id="9113082697-15">[</span><span·class="p"·data-group-id="9113082697-16">{</span><span·class="ss">capture</span><span·class="p">,</span><span·class="ss">all_names</span><span·class="p">,</span><span·class="ss">binary</span><span·class="p"·data-group-id="9113082697-16">}</span><span·class="p"·data-group-id="9113082697-15">]</span><span·class="p"·data-group-id="9113082697-14">)</span><span·class="p">.</span><span·class="w"> | ||
| 2578 | </span><span·class="p"·data-group-id="9 | 2576 | </span><span·class="p"·data-group-id="1984301363-8">{</span><span·class="ss">namelist</span><span·class="p">,</span><span·class="p"·data-group-id="1984301363-9">[</span><span·class="p"·data-group-id="1984301363-10"><<</span><span·class="s">"A"</span><span·class="p"·data-group-i[·...·truncated·by·diffoscope;·len:·493,·SHA:·da1c3160d9c970419ebf15ceac25a856559bca5dbbccd668171fbe06a15e5a50·...·]">}</span><span·class="gp·unselectable"> |
| 2577 | 3>·</span><span·class="p"·data-group-id="1984301363-13">{</span><span·class="ss">match</span><span·class="p">,</span><span·class="n">L</span><span·class="p"·data-group-id="1984301363-13">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">re</span><span·class="p">:</span><span·class="nf">run</span><span·class="p"·data-group-id="1984301363-14">(</span><span·class="s">"AA"</span><span·class="p">,</span><span·class="n">MP</span><span·class="p">,</span><span·class="p"·data-group-id="1984301363-15">[</span><span·class="p"·data-group-id="1984301363-16">{</span><span·class="ss">capture</span><span·class="p">,</span><span·class="ss">all_names</span><span·class="p">,</span><span·class="ss">binary</span><span·class="p"·data-group-id="1984301363-16">}</span><span·class="p"·data-group-id="1984301363-15">]</span><span·class="p"·data-group-id="1984301363-14">)</span><span·class="p">.</span><span·class="w"> | ||
| 2578 | </span><span·class="p"·data-group-id="1984301363-17">{</span><span·class="ss">match</span><span·class="p">,</span><span·class="p"·data-group-id="1984301363-18">[</span><span·class="p"·data-group-id="1984301363-19"><<</span><span·class="s">"A"</span><span·class="p"·data-group-id="1984301363-19">>></span><span·class="p">,</span><span·class="p"·data-group-id="1984301363-20"><<</span><span·class="p"·data-group-id="1984301363-20">>></span><span·class="p">,</span><span·class="p"·data-group-id="1984301363-21"><<</span><span·class="p"·data-group-id="1984301363-21">>></span><span·class="p"·data-group-id="1984301363-18">]</span><span·class="p"·data-group-id="1984301363-17">}</span><span·class="gp·unselectable"> | ||
| 2579 | 4>·</span><span·class="n">NameMap</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">zip</span><span·class="p"·data-group-id="9 | 2579 | 4>·</span><span·class="n">NameMap</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">zip</span><span·class="p"·data-group-id="1984301363-22">(</span><span·class="n">N</span><span·class="p">,</span><span·class="n">L</span><span·class="p"·data-group-id="1984301363-22">)</span><span·class="p">.</span><span·class="w"> |
| 2580 | </span><span·class="p"·data-group-id="9 | 2580 | </span><span·class="p"·data-group-id="1984301363-23">[</span><span·class="p"·data-group-id="1984301363-24">{</span><span·class="p"·data-group-id="1984301363-25"><<</span><span·class="s">"A"</span><span·class="p"·data-group-id="1984301363-25">>></span><span·class="p">,</sp[·...·truncated·by·diffoscope;·len:·1128,·SHA:·b2e1f841a19464f84a5adba65c255dd8dafc6315b7bfdf8b200a92ecada989f4·...·]-23">]</span></code></pre> |
| 2581 | ··</section> | 2581 | ··</section> |
| 2582 | </section> | 2582 | </section> |
| 2583 | <section·class="detail"·id="replace/3"> | 2583 | <section·class="detail"·id="replace/3"> |
| 2584 | ··<div·class="detail-header"> | 2584 | ··<div·class="detail-header"> |
| 2585 | ····<a·href="#replace/3"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 2585 | ····<a·href="#replace/3"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 2586 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 2586 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 2661, 24 lines modified | Offset 2661, 24 lines modified | ||
| 2661 | both·the·regular·expression·and·<code·class="inline">Subject</code>·are·to·specified·as·valid·Unicode | 2661 | both·the·regular·expression·and·<code·class="inline">Subject</code>·are·to·specified·as·valid·Unicode |
| 2662 | <code·class="inline">charlist()</code>s.</p><p>If·the·replacement·is·given·as·a·string,·it·can·contain·the·special·character | 2662 | <code·class="inline">charlist()</code>s.</p><p>If·the·replacement·is·given·as·a·string,·it·can·contain·the·special·character |
| 2663 | <code·class="inline">&</code>,·which·inserts·the·whole·matching·expression·in·the·result,·and·the·special | 2663 | <code·class="inline">&</code>,·which·inserts·the·whole·matching·expression·in·the·result,·and·the·special |
| 2664 | sequence·<code·class="inline">\</code>N·(where·N·is·an·integer·>·0),·<code·class="inline">\g</code>N,·or·<code·class="inline">\g{</code>N<code·class="inline">}</code>,·resulting·in·the | 2664 | sequence·<code·class="inline">\</code>N·(where·N·is·an·integer·>·0),·<code·class="inline">\g</code>N,·or·<code·class="inline">\g{</code>N<code·class="inline">}</code>,·resulting·in·the |
| 2665 | subexpression·number·N,·is·inserted·in·the·result.·If·no·subexpression·with·that | 2665 | subexpression·number·N,·is·inserted·in·the·result.·If·no·subexpression·with·that |
| 2666 | number·is·generated·by·the·regular·expression,·nothing·is·inserted.</p><p>To·insert·an·&·or·a·\·in·the·result,·precede·it·with·a·\.·Notice·that·Erlang | 2666 | number·is·generated·by·the·regular·expression,·nothing·is·inserted.</p><p>To·insert·an·&·or·a·\·in·the·result,·precede·it·with·a·\.·Notice·that·Erlang |
| 2667 | already·gives·a·special·meaning·to·\·in·literal·strings,·so·a·single·\·must·be | 2667 | already·gives·a·special·meaning·to·\·in·literal·strings,·so·a·single·\·must·be |
| 2668 | written·as·<code·class="inline">"\\"</code>·and·therefore·a·double·\·as·<code·class="inline">"\\\\"</code>.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">re</span><span·class="p">:</span><span·class="nf">replace</span><span·class="p"·data-group-id="59 | 2668 | written·as·<code·class="inline">"\\"</code>·and·therefore·a·double·\·as·<code·class="inline">"\\\\"</code>.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">re</span><span·class="p">:</span><span·class="nf">replace</span><span·class="p"·data-group-id="2593734224-1">(</span><span·class="s">"abcd"</span><span·class="p">,</span><span·class="s">"c"</span><span·class="p">,</span><span·class="s">"[&]"</span><span·class="p">,</span><span·class="p"·data-group-id="2593734224-2">[·...·truncated·by·diffoscope;·len:·288,·SHA:·904db50713f4d939e1ff913f3b7949747a47f3793317fa9d72592de83f99640e·...·]24-1">)</span><span·class="p">.</span><span·class="w"> |
| 2669 | </span><span·class="s">"ab[c]d"</span></code></pre><p>while</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">2>·</span><span·class="nc">re</span><span·class="p">:</span><span·class="nf">replace</span><span·class="p"·data-group-id=" | 2669 | </span><span·class="s">"ab[c]d"</span></code></pre><p>while</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">2>·</span><span·class="nc">re</span><span·class="p">:</span><span·class="nf">replace</span><span·class="p"·data-group-id="5981041705-1">(</span><span·class="s">"abcd"</span><span·class="p">,</span><span·class="s">"c"</span><span·class="p">,</span><span·class="s">"[\\&]"</span><span·class="p">,</span><span·class="p"·data-group-id="5981041705-2[·...·truncated·by·diffoscope;·len:·292,·SHA:·7f24002a48570979be3ceb95af869fc953a34aba2701cf684e3d86577e78ae20·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 2670 | </span><span·class="s">"ab[&]d"</span></code></pre><p>If·the·replacement·is·given·as·a·fun,·it·will·be·called·with·the·whole·matching | 2670 | </span><span·class="s">"ab[&]d"</span></code></pre><p>If·the·replacement·is·given·as·a·fun,·it·will·be·called·with·the·whole·matching |
| 2671 | expression·as·the·first·argument·and·a·list·of·subexpression·matches·in·the | 2671 | expression·as·the·first·argument·and·a·list·of·subexpression·matches·in·the |
| 2672 | order·in·which·they·appear·in·the·regular·expression.·The·returned·value·will·be | 2672 | order·in·which·they·appear·in·the·regular·expression.·The·returned·value·will·be |
| 2673 | inserted·in·the·result.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">3>·</span><span·class="nc">re</span><span·class="p">:</span><span·class="nf">replace</span><span·class="p"·data-group-id=" | 2673 | inserted·in·the·result.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">3>·</span><span·class="nc">re</span><span·class="p">:</span><span·class="nf">replace</span><span·class="p"·data-group-id="5813685867-1">(</span><span·class="s">"abcd"</span><span·class="p">,</span><span·class="w">·</span><span·class="s">".(.)"</span><span·class="p">,</span><span·class="w"> |
| 2674 | ····</span><span·class="nf">fun</span><span·class="p"·data-group-id=" | 2674 | ····</span><span·class="nf">fun</span><span·class="p"·data-group-id="5813685867-2">(</span><span·class="n">Whole</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="5813685867-3">[</span><span·class="p"·data-group-id="5813685867-4"><<</span><span·class="n">C</span><span·class="p"·data-[·...·truncated·by·diffoscope;·len:·133,·SHA:·a7568d90af77a1977f893fb27c3bba3d94623342876b38e3424a07a64cca714b·...·]-2">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 2675 | ·········</span><span·class="p"·data-group-id=" | 2675 | ·········</span><span·class="p"·data-group-id="5813685867-5"><<</span><span·class="sc">$#</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Whole</span><span·class="o">/</span><span·class="ss">binary</span><span·class="p">,</span><span·class="w">·</span><span·class="sc">$-</sp[·...·truncated·by·diffoscope;·len:·492,·SHA:·ef5da3eed11d69515f33f1a66e9b3b5a3a6145815f20cea7cee73ac56cf2c8fe·...·]-5">>></span><span·class="w"> |
| 2676 | ····</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> | 2676 | ····</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> |
| 2677 | ····</span><span·class="p"·data-group-id=" | 2677 | ····</span><span·class="p"·data-group-id="5813685867-7">[</span><span·class="p"·data-group-id="5813685867-8">{</span><span·class="ss">return</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">list</span><span·class="p"·data-group-id="5813685867-8">}</span><span·class="p"·data-g[·...·truncated·by·diffoscope;·len:·72,·SHA:·fa15a3b72076ee40fe3e518e14985721582f934d3cee8955feaaab75a30d6e43·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 2678 | </span><span·class="s">"#ab-B#cd"</span></code></pre><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>Non-matching·optional·subexpressions·will·not·be·included·in·the·list·of | 2678 | </span><span·class="s">"#ab-B#cd"</span></code></pre><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>Non-matching·optional·subexpressions·will·not·be·included·in·the·list·of |
| 2679 | subexpression·matches·if·they·are·the·last·subexpressions·in·the·regular | 2679 | subexpression·matches·if·they·are·the·last·subexpressions·in·the·regular |
| 2680 | expression.</p><p><em>Example:</em></p><p>The·regular·expression·<code·class="inline">"(a)(b)?(c)?"</code>·("a",·optionally·followed·by·"b", | 2680 | expression.</p><p><em>Example:</em></p><p>The·regular·expression·<code·class="inline">"(a)(b)?(c)?"</code>·("a",·optionally·followed·by·"b", |
| 2681 | optionally·followed·by·"c")·will·create·the·following·subexpression·lists:</p><ul><li><code·class="inline">[<<"a">>,·<<"b">>,·<<"c">>]</code>·when·applied·to·the·string·<code·class="inline">"abc"</code></li><li><code·class="inline">[<<"a">>,·<<>>,·<<"c">>]</code>·when·applied·to·the·string·<code·class="inline">"acx"</code></li><li><code·class="inline">[<<"a">>,·<<"b">>]</code>·when·applied·to·the·string·<code·class="inline">"abx"</code></li><li><code·class="inline">[<<"a">>]</code>·when·applied·to·the·string·<code·class="inline">"axx"</code></li></ul></section><p>As·with·<a·href="#run/3"><code·class="inline">run/3</code></a>,·compilation·errors·raise·the·<code·class="inline">badarg</code>·exception. | 2681 | optionally·followed·by·"c")·will·create·the·following·subexpression·lists:</p><ul><li><code·class="inline">[<<"a">>,·<<"b">>,·<<"c">>]</code>·when·applied·to·the·string·<code·class="inline">"abc"</code></li><li><code·class="inline">[<<"a">>,·<<>>,·<<"c">>]</code>·when·applied·to·the·string·<code·class="inline">"acx"</code></li><li><code·class="inline">[<<"a">>,·<<"b">>]</code>·when·applied·to·the·string·<code·class="inline">"abx"</code></li><li><code·class="inline">[<<"a">>]</code>·when·applied·to·the·string·<code·class="inline">"axx"</code></li></ul></section><p>As·with·<a·href="#run/3"><code·class="inline">run/3</code></a>,·compilation·errors·raise·the·<code·class="inline">badarg</code>·exception. |
| 2682 | <a·href="#compile/2"><code·class="inline">compile/2</code></a>·can·be·used·to·get·more·information·about·the·error.</p> | 2682 | <a·href="#compile/2"><code·class="inline">compile/2</code></a>·can·be·used·to·get·more·information·about·the·error.</p> |
| 2683 | ··</section> | 2683 | ··</section> |
| 2684 | </section> | 2684 | </section> |
| Offset 2787, 27 lines modified | Offset 2787, 27 lines modified | ||
| 2787 | any·matching·subexpressions·(or·as·specified·by·option·<code·class="inline">capture</code>.·The | 2787 | any·matching·subexpressions·(or·as·specified·by·option·<code·class="inline">capture</code>.·The |
| 2788 | <code·class="inline">Captured</code>·part·of·the·return·value·is·hence·a·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:list/0"><code·class="inline">list/0</code></a>·of·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:list/0"><code·class="inline">list/0</code></a>s·when | 2788 | <code·class="inline">Captured</code>·part·of·the·return·value·is·hence·a·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:list/0"><code·class="inline">list/0</code></a>·of·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:list/0"><code·class="inline">list/0</code></a>s·when |
| 2789 | this·option·is·specified.</p><p>The·interaction·of·option·<code·class="inline">global</code>·with·a·regular·expression·that·matches·an | 2789 | this·option·is·specified.</p><p>The·interaction·of·option·<code·class="inline">global</code>·with·a·regular·expression·that·matches·an |
| 2790 | empty·string·surprises·some·users.·When·option·<code·class="inline">global</code>·is·specified, | 2790 | empty·string·surprises·some·users.·When·option·<code·class="inline">global</code>·is·specified, |
| 2791 | <a·href="#run/3"><code·class="inline">run/3</code></a>·handles·empty·matches·in·the·same·way·as·Perl:·a | 2791 | <a·href="#run/3"><code·class="inline">run/3</code></a>·handles·empty·matches·in·the·same·way·as·Perl:·a |
| 2792 | zero-length·match·at·any·point·is·also·retried·with·options | 2792 | zero-length·match·at·any·point·is·also·retried·with·options |
| 2793 | <code·class="inline">[anchored,·notempty_atstart]</code>.·If·that·search·gives·a·result·of·length·>·0, | 2793 | <code·class="inline">[anchored,·notempty_atstart]</code>.·If·that·search·gives·a·result·of·length·>·0, |
| 2794 | the·result·is·included.·Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">re</span><span·class="p">:</span><span·class="nf">run</span><span·class="p"·data-group-id=" | 2794 | the·result·is·included.·Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">re</span><span·class="p">:</span><span·class="nf">run</span><span·class="p"·data-group-id="6916013857-1">(</span><span·class="s">"cat"</span><span·class="p">,</span><span·class="s">"(|at)"</span><span·class="p">,</span><span·class="p"·data-group-id="6916013857-2">[</span><span·class="ss">global</span><span·class="p"·data-grou[·...·truncated·by·diffoscope;·len:·69,·SHA:·c06987e028eac6ea0f45d595f76d0b7be91aaf450cc0177241a5536da025c95d·...·]-1">)</span><span·class="p">.</span></code></pre><p>The·following·matchings·are·performed:</p><ul><li><p><strong>At·offset·<code·class="inline">0</code></strong>·-·The·regular·expression·<code·class="inline">(|at)</code>·first·match·at·the |
| 2795 | initial·position·of·string·<code·class="inline">cat</code>,·giving·the·result·set·<code·class="inline">[{0,0},{0,0}]</code>·(the | 2795 | initial·position·of·string·<code·class="inline">cat</code>,·giving·the·result·set·<code·class="inline">[{0,0},{0,0}]</code>·(the |
| 2796 | second·<code·class="inline">{0,0}</code>·is·because·of·the·subexpression·marked·by·the·parentheses). | 2796 | second·<code·class="inline">{0,0}</code>·is·because·of·the·subexpression·marked·by·the·parentheses). |
| 2797 | As·the·length·of·the·match·is·0,·we·do·not·advance·to·the·next·position·yet.</p></li><li><p><strong>At·offset·<code·class="inline">0</code>·with·<code·class="inline">[anchored,·notempty_atstart]</code></strong>·-·The·search·is | 2797 | As·the·length·of·the·match·is·0,·we·do·not·advance·to·the·next·position·yet.</p></li><li><p><strong>At·offset·<code·class="inline">0</code>·with·<code·class="inline">[anchored,·notempty_atstart]</code></strong>·-·The·search·is |
| 2798 | retried·with·options·<code·class="inline">[anchored,·notempty_atstart]</code>·at·the·same·position, | 2798 | retried·with·options·<code·class="inline">[anchored,·notempty_atstart]</code>·at·the·same·position, |
| 2799 | which·does·not·give·any·interesting·result·of·longer·length,·so·the·search | 2799 | which·does·not·give·any·interesting·result·of·longer·length,·so·the·search |
| 2800 | position·is·advanced·to·the·next·character·(<code·class="inline">a</code>).</p></li><li><p><strong>At·offset·<code·class="inline">1</code></strong>·-·The·search·results·in·<code·class="inline">[{1,0},{1,0}]</code>,·so·this·search·is | 2800 | position·is·advanced·to·the·next·character·(<code·class="inline">a</code>).</p></li><li><p><strong>At·offset·<code·class="inline">1</code></strong>·-·The·search·results·in·<code·class="inline">[{1,0},{1,0}]</code>,·so·this·search·is |
| 2801 | also·repeated·with·the·extra·options.</p></li><li><p><strong>At·offset·<code·class="inline">1</code>·with·<code·class="inline">[anchored,·notempty_atstart]</code></strong>·-·Alternative·<code·class="inline">ab</code>·is | 2801 | also·repeated·with·the·extra·options.</p></li><li><p><strong>At·offset·<code·class="inline">1</code>·with·<code·class="inline">[anchored,·notempty_atstart]</code></strong>·-·Alternative·<code·class="inline">ab</code>·is |
| 2802 | found·and·the·result·is·[{1,2},{1,2}].·The·result·is·added·to·the·list | 2802 | found·and·the·result·is·[{1,2},{1,2}].·The·result·is·added·to·the·list |
| 2803 | of·results·and·the·position·in·the·search·string·is·advanced·two·steps.</p></li><li><p><strong>At·offset·<code·class="inline">3</code></strong>·-·The·search·once·again·matches·the·empty·string,·giving | 2803 | of·results·and·the·position·in·the·search·string·is·advanced·two·steps.</p></li><li><p><strong>At·offset·<code·class="inline">3</code></strong>·-·The·search·once·again·matches·the·empty·string,·giving |
| 2804 | <code·class="inline">[{3,0},{3,0}]</code>.</p></li><li><p><strong>At·offset·<code·class="inline">1</code>·with·<code·class="inline">[anchored,·notempty_atstart]</code></strong>·-·This·gives·no·result | 2804 | <code·class="inline">[{3,0},{3,0}]</code>.</p></li><li><p><strong>At·offset·<code·class="inline">1</code>·with·<code·class="inline">[anchored,·notempty_atstart]</code></strong>·-·This·gives·no·result |
| 2805 | of·length·>·0·and·we·are·at·the·last·position,·so·the·global·search·is | 2805 | of·length·>·0·and·we·are·at·the·last·position,·so·the·global·search·is |
| 2806 | complete.</p></li></ul><p>The·result·of·the·call·is:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 2806 | complete.</p></li></ul><p>The·result·of·the·call·is:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="6084840185-1">{</span><span·class="ss">match</span><span·class="p">,</span><span·class="p"·data-group-id="6084840185-2">[</span><span·class="p"·data-group-id="6084840185-3">[</span><span·class="p"·data-group-id="6084840185-4">{</span><span·class="mi">0</sp[·...·truncated·by·diffoscope;·len:·2008,·SHA:·b1e83366b5e8702c22a9e54d057f9e514a8d325e7b668ff088317be95a1748ca·...·]-1">}</span></code></pre></li><li><p><strong><code·class="inline">notempty</code></strong>·-·An·empty·string·is·not·considered·to·be·a·valid·match·if·this |
| 2807 | option·is·specified.·If·alternatives·in·the·pattern·exist,·they·are·tried.·If | 2807 | option·is·specified.·If·alternatives·in·the·pattern·exist,·they·are·tried.·If |
| 2808 | all·the·alternatives·match·the·empty·string,·the·entire·match·fails.</p><p><em>Example:</em></p><p>If·the·following·pattern·is·applied·to·a·string·not·beginning·with·"a"·or·"b", | 2808 | all·the·alternatives·match·the·empty·string,·the·entire·match·fails.</p><p><em>Example:</em></p><p>If·the·following·pattern·is·applied·to·a·string·not·beginning·with·"a"·or·"b", |
| 2809 | it·would·normally·match·the·empty·string·at·the·start·of·the·subject:</p><pre><code·class="text">a?b?</code></pre><p>With·option·<code·class="inline">notempty</code>,·this·match·is·invalid,·so·<a·href="#run/3"><code·class="inline">run/3</code></a>·searches | 2809 | it·would·normally·match·the·empty·string·at·the·start·of·the·subject:</p><pre><code·class="text">a?b?</code></pre><p>With·option·<code·class="inline">notempty</code>,·this·match·is·invalid,·so·<a·href="#run/3"><code·class="inline">run/3</code></a>·searches |
| 2810 | further·into·the·string·for·occurrences·of·"a"·or·"b".</p></li><li><p><strong><code·class="inline">notempty_atstart</code></strong>·-·Like·<code·class="inline">notempty</code>,·except·that·an·empty·string·match | 2810 | further·into·the·string·for·occurrences·of·"a"·or·"b".</p></li><li><p><strong><code·class="inline">notempty_atstart</code></strong>·-·Like·<code·class="inline">notempty</code>,·except·that·an·empty·string·match |
| 2811 | that·is·not·at·the·start·of·the·subject·is·permitted.·If·the·pattern·is | 2811 | that·is·not·at·the·start·of·the·subject·is·permitted.·If·the·pattern·is |
| 2812 | anchored,·such·a·match·can·occur·only·if·the·pattern·contains·\K.</p><p>Perl·has·no·direct·equivalent·of·<code·class="inline">notempty</code>·or·<code·class="inline">notempty_atstart</code>,·but·it·does | 2812 | anchored,·such·a·match·can·occur·only·if·the·pattern·contains·\K.</p><p>Perl·has·no·direct·equivalent·of·<code·class="inline">notempty</code>·or·<code·class="inline">notempty_atstart</code>,·but·it·does |
| 2813 | make·a·special·case·of·a·pattern·match·of·the·empty·string·within·its·split() | 2813 | make·a·special·case·of·a·pattern·match·of·the·empty·string·within·its·split() |
| Offset 2870, 35 lines modified | Offset 2870, 35 lines modified | ||
| 2870 | than·the·total·number·of·calls,·because·not·all·calls·to·match()·are | 2870 | than·the·total·number·of·calls,·because·not·all·calls·to·match()·are |
| 2871 | recursive.·This·limit·is·of·use·only·if·it·is·set·smaller·than | 2871 | recursive.·This·limit·is·of·use·only·if·it·is·set·smaller·than |
| 2872 | match_limit.</p><p>Limiting·the·recursion·depth·limits·the·amount·of·machine·stack·that | 2872 | match_limit.</p><p>Limiting·the·recursion·depth·limits·the·amount·of·machine·stack·that |
| 2873 | can·be·used,·or,·when·PCRE·has·been·compiled·to·use·memory·on·the·heap | 2873 | can·be·used,·or,·when·PCRE·has·been·compiled·to·use·memory·on·the·heap |
| 2874 | instead·of·the·stack,·the·amount·of·heap·memory·that·can·be·used.</p></blockquote><p>The·Erlang·VM·uses·a·PCRE·library·where·heap·memory·is·used·when·regular | 2874 | instead·of·the·stack,·the·amount·of·heap·memory·that·can·be·used.</p></blockquote><p>The·Erlang·VM·uses·a·PCRE·library·where·heap·memory·is·used·when·regular |
| 2875 | expression·match·recursion·occurs.·This·therefore·limits·the·use·of·machine | 2875 | expression·match·recursion·occurs.·This·therefore·limits·the·use·of·machine |
| 2876 | heap,·not·C·stack.</p><p>Specifying·a·lower·value·can·result·in·matches·with·deep·recursion·failing, | 2876 | heap,·not·C·stack.</p><p>Specifying·a·lower·value·can·result·in·matches·with·deep·recursion·failing, |
| 2877 | when·they·should·have·matched:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">re</span><span·class="p">:</span><span·class="nf">run</span><span·class="p"·data-group-id="5 | 2877 | when·they·should·have·matched:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">re</span><span·class="p">:</span><span·class="nf">run</span><span·class="p"·data-group-id="5779150880-1">(</span><span·class="s">"aaaaaaaaaaaaaz"</span><span·class="p">,</span><span·class="s">"(a+)*z"</span><span·class="p"·data-group-id="5779150880-1">)</span><span·class="p">.</span><span·class="w"> |
| 2878 | </span><span·class="p"·data-group-id="5 | 2878 | </span><span·class="p"·data-group-id="5779150880-2">{</span><span·class="ss">match</span><span·class="p">,</span><span·class="p"·data-group-id="5779150880-3">[</span><span·class="p"·data-group-id="5779150880-4">{</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">14</span><[·...·truncated·by·diffoscope;·len:·351,·SHA:·efe12ab5b1cb8623df26403f23cdf1048a3828dd4813aaa8aa68a5df308ddf1f·...·]-2">}</span><span·class="gp·unselectable"> |
| 2879 | 2>·</span><span·class="nc">re</span><span·class="p">:</span><span·class="nf">run</span><span·class="p"·data-group-id="5 | 2879 | 2>·</span><span·class="nc">re</span><span·class="p">:</span><span·class="nf">run</span><span·class="p"·data-group-id="5779150880-6">(</span><span·class="s">"aaaaaaaaaaaaaz"</span><span·class="p">,</span><span·class="s">"(a+)*z"</span><span·class="p">,</span><span·class="p"·data-group-id="5779150880-7">[</span><span·class="p"·data-group-id="5779150880-8"[·...·truncated·by·diffoscope;·len:·250,·SHA:·36554d3578532bc078dfde8400017dddb0082c5542cc6ac2028c0f8615b05ff2·...·]-6">)</span><span·class="p">.</span><span·class="w"> |
| 2880 | </span><span·class="ss">nomatch</span><span·class="gp·unselectable"> | 2880 | </span><span·class="ss">nomatch</span><span·class="gp·unselectable"> |
| 2881 | 3>·</span><span·class="nc">re</span><span·class="p">:</span><span·class="nf">run</span><span·class="p"·data-group-id="5 | 2881 | 3>·</span><span·class="nc">re</span><span·class="p">:</span><span·class="nf">run</span><span·class="p"·data-group-id="5779150880-9">(</span><span·class="s">"aaaaaaaaaaaaaz"</span><span·class="p">,</span><span·class="s">"(a+)*z"</span><span·class="p">,</span><span·class="p"·data-group-id="5779150880-10">[</span><span·class="p"·data-group-id="5779150880-1[·...·truncated·by·diffoscope;·len:·315,·SHA:·7cca951fef650070df695c63b94b9e6abf9d986cf5696d410f00cd420d9a1ce4·...·]-9">)</span><span·class="p">.</span><span·class="w"> |
| 2882 | </span><span·class="p"·data-group-id="5 | 2882 | </span><span·class="p"·data-group-id="5779150880-12">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="ss">match_limit_recursion</span><span·class="p"·data-group-id="5779150880-12">}</span></code></pre><p>This·option·and·option·<code·class="inline">match_limit</code>·are·only·to·be·used·in·rare·cases. |
| 2883 | Understanding·of·the·PCRE·library·internals·is·recommended·before·tampering | 2883 | Understanding·of·the·PCRE·library·internals·is·recommended·before·tampering |
| 2884 | with·these·limits.</p></li><li><p><strong><code·class="inline">{offset,·integer()·>=·0}</code></strong>·-·Start·matching·at·the·offset·(position) | 2884 | with·these·limits.</p></li><li><p><strong><code·class="inline">{offset,·integer()·>=·0}</code></strong>·-·Start·matching·at·the·offset·(position) |
| 2885 | specified·in·the·subject·string.·The·offset·is·zero-based,·so·that·the·default | 2885 | specified·in·the·subject·string.·The·offset·is·zero-based,·so·that·the·default |
| 2886 | is·<code·class="inline">{offset,0}</code>·(all·of·the·subject·string).</p></li><li><p><strong><code·class="inline">{capture,·ValueSpec}</code>/<code·class="inline">{capture,·ValueSpec,·Type}</code></strong>·-·Specifies·which | 2886 | is·<code·class="inline">{offset,0}</code>·(all·of·the·subject·string).</p></li><li><p><strong><code·class="inline">{capture,·ValueSpec}</code>/<code·class="inline">{capture,·ValueSpec,·Type}</code></strong>·-·Specifies·which |
| 2887 | captured·substrings·are·returned·and·in·what·format.·By·default, | 2887 | captured·substrings·are·returned·and·in·what·format.·By·default, |
| 2888 | <a·href="#run/3"><code·class="inline">run/3</code></a>·captures·all·of·the·matching·part·of·the·substring·and·all | 2888 | <a·href="#run/3"><code·class="inline">run/3</code></a>·captures·all·of·the·matching·part·of·the·substring·and·all |
| 2889 | capturing·subpatterns·(all·of·the·pattern·is·automatically·captured).·The | 2889 | capturing·subpatterns·(all·of·the·pattern·is·automatically·captured).·The |
| 2890 | default·return·type·is·(zero-based)·indexes·of·the·captured·parts·of·the | 2890 | default·return·type·is·(zero-based)·indexes·of·the·captured·parts·of·the |
| 2891 | string,·specified·as·<code·class="inline">{Offset,Length}</code>·pairs·(the·<code·class="inline">index</code>·<code·class="inline">Type</code>·of | 2891 | string,·specified·as·<code·class="inline">{Offset,Length}</code>·pairs·(the·<code·class="inline">index</code>·<code·class="inline">Type</code>·of |
| 2892 | capturing).</p><p>As·an·example·of·the·default·behavior,·the·following·call·returns,·as·first | 2892 | capturing).</p><p>As·an·example·of·the·default·behavior,·the·following·call·returns,·as·first |
| 2893 | and·only·captured·string,·the·matching·part·of·the·subject·("abcd"·in·the | 2893 | and·only·captured·string,·the·matching·part·of·the·subject·("abcd"·in·the |
| 2894 | middle)·as·an·index·pair·<code·class="inline">{3,4}</code>,·where·character·positions·are·zero-based, | 2894 | middle)·as·an·index·pair·<code·class="inline">{3,4}</code>,·where·character·positions·are·zero-based, |
| 2895 | just·as·in·offsets:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">re</span><span·class="p">:</span><span·class="nf">run</span><span·class="p"·data-group-id=" | 2895 | just·as·in·offsets:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">re</span><span·class="p">:</span><span·class="nf">run</span><span·class="p"·data-group-id="3446818624-1">(</span><span·class="s">"ABCabcdABC"</span><span·class="p">,</span><span·class="s">"abcd"</span><span·class="p">,</span><span·class="p"·data-group-id="3446818624-2">[</span><span·class="p"·data-group-id="3446818624-2">]</s[·...·truncated·by·diffoscope;·len:·615,·SHA:·52e88141f059d88b6192d89b0a104e30d3eb7fa8922ae236dfa585938102bdae·...·]-1">}</span></code></pre><p>Another·(and·quite·common)·case·is·where·the·regular·expression·matches·all·of |
| 2896 | the·subject:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">re</span><span·class="p">:</span><span·class="nf">run</span><span·class="p"·data-group-id=" | 2896 | the·subject:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">re</span><span·class="p">:</span><span·class="nf">run</span><span·class="p"·data-group-id="5118490225-1">(</span><span·class="s">"ABCabcdABC"</span><span·class="p">,</span><span·class="s">".*abcd.*"</span><span·class="p">,</span><span·class="p"·data-group-id="5118490225-2">[</span><span·class="p"·data-group-id="5118490225-2">[·...·truncated·by·diffoscope;·len:·49,·SHA:·fc9c029e06a84072b295498df5d842f366fd22e64722f1d910e126c07c8e7fe6·...·]-1">)</span><span·class="p">.</span></code></pre><p>Here·the·return·value·correspondingly·points·out·all·of·the·string,·beginning |
| 2897 | at·index·0,·and·it·is·10·characters·long:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 2897 | at·index·0,·and·it·is·10·characters·long:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="8356525001-1">{</span><span·class="ss">match</span><span·class="p">,</span><span·class="p"·data-group-id="8356525001-2">[</span><span·class="p"·data-group-id="8356525001-3">{</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">10</span>[·...·truncated·by·diffoscope;·len:·1524,·SHA:·a278be878ab525e6ffa90f00daea0c3e2f36cefcde3c9d714233a5cecdd5b955·...·]3-1">}</span></code></pre><p>The·complete·matching·pattern·always·gives·the·first·return·value·in·the·list |
| 2898 | and·the·remaining·subpatterns·are·added·in·the·order·they·occurred·in·the | 2898 | and·the·remaining·subpatterns·are·added·in·the·order·they·occurred·in·the |
| 2899 | regular·expression.</p><p>The·capture·tuple·is·built·up·as·follows:</p><ul><li><p><strong><code·class="inline">ValueSpec</code></strong>·-·Specifies·which·captured·(sub)patterns·are·to·be·returned. | 2899 | regular·expression.</p><p>The·capture·tuple·is·built·up·as·follows:</p><ul><li><p><strong><code·class="inline">ValueSpec</code></strong>·-·Specifies·which·captured·(sub)patterns·are·to·be·returned. |
| 2900 | <code·class="inline">ValueSpec</code>·can·either·be·an·atom·describing·a·predefined·set·of·return | 2900 | <code·class="inline">ValueSpec</code>·can·either·be·an·atom·describing·a·predefined·set·of·return |
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| 250 | ······<p·class="built-using"> | 250 | ······<p·class="built-using"> |
| 251 | ········Built·using | 251 | ········Built·using |
| 252 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 252 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 253 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 253 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 254 | ······</p> | 254 | ······</p> |
| 255 | <p>Copyright·©·1996-202 | 255 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 256 | ····</footer> | 256 | ····</footer> |
| 257 | ··</div> | 257 | ··</div> |
| 258 | </main> | 258 | </main> |
| 259 | </div> | 259 | </div> |
| 260 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 260 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 261 | ··<script> | 261 | ··<script> |
| 262 | ··let·initialized·=·false; | 262 | ··let·initialized·=·false; |
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| 141 | ······<p·class="built-using"> | 141 | ······<p·class="built-using"> |
| 142 | ········Built·using | 142 | ········Built·using |
| 143 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 143 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 144 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 144 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 145 | ······</p> | 145 | ······</p> |
| 146 | <p>Copyright·©·1996-202 | 146 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 147 | ····</footer> | 147 | ····</footer> |
| 148 | ··</div> | 148 | ··</div> |
| 149 | </main> | 149 | </main> |
| 150 | </div> | 150 | </div> |
| 151 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 151 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 152 | ··<script> | 152 | ··<script> |
| 153 | ··let·initialized·=·false; | 153 | ··let·initialized·=·false; |
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| 157 | do·not·match·(<code·class="inline">=:=</code>),·while·both·<a·href="ordsets.html"><code·class="inline">ordsets</code></a>·and·<a·href="gb_sets.html"><code·class="inline">gb_sets</code></a>·consider·elements | 157 | do·not·match·(<code·class="inline">=:=</code>),·while·both·<a·href="ordsets.html"><code·class="inline">ordsets</code></a>·and·<a·href="gb_sets.html"><code·class="inline">gb_sets</code></a>·consider·elements |
| 158 | as·different·if·and·only·if·they·do·not·compare·equal·(<code·class="inline">==</code>).</p><h3·id="module-examples"·class="section-heading"> | 158 | as·different·if·and·only·if·they·do·not·compare·equal·(<code·class="inline">==</code>).</p><h3·id="module-examples"·class="section-heading"> |
| 159 | ··<a·href="#module-examples"·class="hover-link"> | 159 | ··<a·href="#module-examples"·class="hover-link"> |
| 160 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 160 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 161 | ··</a> | 161 | ··</a> |
| 162 | ··<span·class="text">Examples</span> | 162 | ··<span·class="text">Examples</span> |
| 163 | </h3> | 163 | </h3> |
| 164 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">sets</span><span·class="p">:</span><span·class="nf">is_element</span><span·class="p"·data-group-id=" | 164 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">sets</span><span·class="p">:</span><span·class="nf">is_element</span><span·class="p"·data-group-id="7789972945-1">(</span><span·class="mf">1.0</span><span·class="p">,</span><span·class="w">·</span><span·class="nc">sets</span><span·class="p">:</span><span·class="nf">from_list</span><span·class="p"·data-group-id="7789972945-2">(</span><span·class="p"·data-[·...·truncated·by·diffoscope;·len:·204,·SHA:·5a2eef9a36068866df8ce1be3a13637bbeb9170d698dceac158b490da52f0296·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 165 | </span><span·class="ss">false</span><span·class="gp·unselectable"> | 165 | </span><span·class="ss">false</span><span·class="gp·unselectable"> |
| 166 | 2>·</span><span·class="nc">ordsets</span><span·class="p">:</span><span·class="nf">is_element</span><span·class="p"·data-group-id=" | 166 | 2>·</span><span·class="nc">ordsets</span><span·class="p">:</span><span·class="nf">is_element</span><span·class="p"·data-group-id="7789972945-4">(</span><span·class="mf">1.0</span><span·class="p">,</span><span·class="w">·</span><span·class="nc">ordsets</span><span·class="p">:</span><span·class="nf">from_list</span><span·class="p"·data-group-id="7789972945-5">(</span><span·class="p"·da[·...·truncated·by·diffoscope;·len:·207,·SHA:·ab1e9e7bdeb5dd3362499fc0e3e0679e82b4d1ac95606473bff38cba441b7575·...·]-4">)</span><span·class="p">.</span><span·class="w"> |
| 167 | </span><span·class="ss">true</span><span·class="gp·unselectable"> | 167 | </span><span·class="ss">true</span><span·class="gp·unselectable"> |
| 168 | 3>·</span><span·class="nc">gb_sets</span><span·class="p">:</span><span·class="nf">is_element</span><span·class="p"·data-group-id=" | 168 | 3>·</span><span·class="nc">gb_sets</span><span·class="p">:</span><span·class="nf">is_element</span><span·class="p"·data-group-id="7789972945-7">(</span><span·class="mf">1.0</span><span·class="p">,</span><span·class="w">·</span><span·class="nc">gb_sets</span><span·class="p">:</span><span·class="nf">from_list</span><span·class="p"·data-group-id="7789972945-8">(</span><span·class="p"·da[·...·truncated·by·diffoscope;·len:·207,·SHA:·93eec126fbb386d2d9bb7331bf46c4cb9694836dccbfeec401ae2082e55c290f·...·]-7">)</span><span·class="p">.</span><span·class="w"> |
| 169 | </span><span·class="ss">true</span></code></pre></section><h2·id="module-see-also"·class="section-heading"> | 169 | </span><span·class="ss">true</span></code></pre></section><h2·id="module-see-also"·class="section-heading"> |
| 170 | ··<a·href="#module-see-also"·class="hover-link"> | 170 | ··<a·href="#module-see-also"·class="hover-link"> |
| 171 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 171 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 172 | ··</a> | 172 | ··</a> |
| 173 | ··<span·class="text">See·Also</span> | 173 | ··<span·class="text">See·Also</span> |
| 174 | </h2> | 174 | </h2> |
| 175 | <p><a·href="gb_sets.html"><code·class="inline">gb_sets</code></a>,·<a·href="ordsets.html"><code·class="inline">ordsets</code></a></p> | 175 | <p><a·href="gb_sets.html"><code·class="inline">gb_sets</code></a>,·<a·href="ordsets.html"><code·class="inline">ordsets</code></a></p> |
| Offset 552, 24 lines modified | Offset 552, 24 lines modified | ||
| 552 | <p>Returns·a·new·set·formed·from·<code·class="inline">Set1</code>·with·<code·class="inline">Element</code>·inserted.</p><h2·id="add_element/2-examples"·class="section-heading"> | 552 | <p>Returns·a·new·set·formed·from·<code·class="inline">Set1</code>·with·<code·class="inline">Element</code>·inserted.</p><h2·id="add_element/2-examples"·class="section-heading"> |
| 553 | ··<a·href="#add_element/2-examples"·class="hover-link"> | 553 | ··<a·href="#add_element/2-examples"·class="hover-link"> |
| 554 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 554 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 555 | ··</a> | 555 | ··</a> |
| 556 | ··<span·class="text">Examples</span> | 556 | ··<span·class="text">Examples</span> |
| 557 | </h2> | 557 | </h2> |
| 558 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">S0</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">sets</span><span·class="p">:</span><span·class="nf">new</span><span·class="p"·data-group-id=" | 558 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">S0</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">sets</span><span·class="p">:</span><span·class="nf">new</span><span·class="p"·data-group-id="6941568727-1">(</span><span·class="p"·data-group-id="6941568727-1">)</span><span·class="p">.</span><span·class="gp·unselectable"> |
| 559 | 2>·</span><span·class="n">S1</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">sets</span><span·class="p">:</span><span·class="nf">add_element</span><span·class="p"·data-group-id=" | 559 | 2>·</span><span·class="n">S1</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">sets</span><span·class="p">:</span><span·class="nf">add_element</span><span·class="p"·data-group-id="6941568727-2">(</span><span·class="mi">7</span><span·class="p">,</span><span·class="w">·</span><span·class="n">S0</span><span·class="p"·data-group-id="6941568727-2">)</span><span·class="p">.</span><span·class="gp·unselectable"> |
| 560 | 3>·</span><span·class="nc">sets</span><span·class="p">:</span><span·class="nf">to_list</span><span·class="p"·data-group-id=" | 560 | 3>·</span><span·class="nc">sets</span><span·class="p">:</span><span·class="nf">to_list</span><span·class="p"·data-group-id="6941568727-3">(</span><span·class="n">S1</span><span·class="p"·data-group-id="6941568727-3">)</span><span·class="p">.</span><span·class="w"> |
| 561 | </span><span·class="p"·data-group-id=" | 561 | </span><span·class="p"·data-group-id="6941568727-4">[</span><span·class="mi">7</span><span·class="p"·data-group-id="6941568727-4">]</span><span·class="gp·unselectable"> |
| 562 | 4>·</span><span·class="n">S2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">sets</span><span·class="p">:</span><span·class="nf">add_element</span><span·class="p"·data-group-id=" | 562 | 4>·</span><span·class="n">S2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">sets</span><span·class="p">:</span><span·class="nf">add_element</span><span·class="p"·data-group-id="6941568727-5">(</span><span·class="mi">42</span><span·class="p">,</span><span·class="w">·</span><span·class="n">S1</span><span·class="p"·data-group-id="6941568727-5">)</span><span·class="p">.</span><span·class="gp·unselectable"> |
| 563 | 5>·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">sort</span><span·class="p"·data-group-id=" | 563 | 5>·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">sort</span><span·class="p"·data-group-id="6941568727-6">(</span><span·class="nc">sets</span><span·class="p">:</span><span·class="nf">to_list</span><span·class="p"·data-group-id="6941568727-7">(</span><span·class="n">S2</span><span·class="p"·data-group-id="6941568727-7">)</span><span·class="p"·data[·...·truncated·by·diffoscope;·len:·21,·SHA:·55b4f984655d6c396cb187cbe6dbcfa3eb1586c4c4f214d766b42f161021dd6a·...·]-6">)</span><span·class="p">.</span><span·class="w"> |
| 564 | </span><span·class="p"·data-group-id=" | 564 | </span><span·class="p"·data-group-id="6941568727-8">[</span><span·class="mi">7</span><span·class="p">,</span><span·class="mi">42</span><span·class="p"·data-group-id="6941568727-8">]</span><span·class="gp·unselectable"> |
| 565 | 6>·</span><span·class="n">S2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">sets</span><span·class="p">:</span><span·class="nf">add_element</span><span·class="p"·data-group-id=" | 565 | 6>·</span><span·class="n">S2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">sets</span><span·class="p">:</span><span·class="nf">add_element</span><span·class="p"·data-group-id="6941568727-9">(</span><span·class="mi">42</span><span·class="p">,</span><span·class="w">·</span><span·class="n">S1</span><span·class="p"·data-group-id="6941568727-9">)</span><span·class="p">.</span><span·class="gp·unselectable"> |
| 566 | 7>·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">sort</span><span·class="p"·data-group-id=" | 566 | 7>·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">sort</span><span·class="p"·data-group-id="6941568727-10">(</span><span·class="nc">sets</span><span·class="p">:</span><span·class="nf">to_list</span><span·class="p"·data-group-id="6941568727-11">(</span><span·class="n">S2</span><span·class="p"·data-group-id="6941568727-11">)</span><span·class="p"·d[·...·truncated·by·diffoscope;·len:·24,·SHA:·9870f3440ba1f96dac206b56931d4847a3883480a0b2d7974ccaa2ed9b9671b8·...·]-10">)</span><span·class="p">.</span><span·class="w"> |
| 567 | </span><span·class="p"·data-group-id=" | 567 | </span><span·class="p"·data-group-id="6941568727-12">[</span><span·class="mi">7</span><span·class="p">,</span><span·class="mi">42</span><span·class="p"·data-group-id="6941568727-12">]</span></code></pre> |
| 568 | ··</section> | 568 | ··</section> |
| 569 | </section> | 569 | </section> |
| 570 | <section·class="detail"·id="del_element/2"> | 570 | <section·class="detail"·id="del_element/2"> |
| 571 | ··<div·class="detail-header"> | 571 | ··<div·class="detail-header"> |
| 572 | ····<a·href="#del_element/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 572 | ····<a·href="#del_element/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 573 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 573 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
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| 593 | <p>Returns·a·copy·of·<code·class="inline">Set1</code>·with·<code·class="inline">Element</code>·removed.</p><h2·id="del_element/2-examples"·class="section-heading"> | 593 | <p>Returns·a·copy·of·<code·class="inline">Set1</code>·with·<code·class="inline">Element</code>·removed.</p><h2·id="del_element/2-examples"·class="section-heading"> |
| 594 | ··<a·href="#del_element/2-examples"·class="hover-link"> | 594 | ··<a·href="#del_element/2-examples"·class="hover-link"> |
| 595 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 595 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 596 | ··</a> | 596 | ··</a> |
| 597 | ··<span·class="text">Examples</span> | 597 | ··<span·class="text">Examples</span> |
| 598 | </h2> | 598 | </h2> |
| 599 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">S</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">sets</span><span·class="p">:</span><span·class="nf">from_list</span><span·class="p"·data-group-id="5 | 599 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">S</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">sets</span><span·class="p">:</span><span·class="nf">from_list</span><span·class="p"·data-group-id="5207147924-1">(</span><span·class="p"·data-group-id="5207147924-2">[</span><span·class="ss">a</span><span·class="p">,</span><span·class="ss">b</span><span·class="p"·data-group-id="5207147924-2">]</span><span·class="p"·data-group-id="5207147924-1">)</span><span·class="p">.</span><span·class="gp·unselectable"> |
| 600 | 2>·</span><span·class="nc">sets</span><span·class="p">:</span><span·class="nf">to_list</span><span·class="p"·data-group-id="5 | 600 | 2>·</span><span·class="nc">sets</span><span·class="p">:</span><span·class="nf">to_list</span><span·class="p"·data-group-id="5207147924-3">(</span><span·class="nc">sets</span><span·class="p">:</span><span·class="nf">del_element</span><span·class="p"·data-group-id="5207147924-4">(</span><span·class="ss">b</span><span·class="p">,</span><span·class="w">·</span><span·class="n">S</spa[·...·truncated·by·diffoscope;·len:·96,·SHA:·d5df49ac2892ca1ee957ae9c74bf92275fec0b4de6fc26c49adcfbb7a7b74d8c·...·]-3">)</span><span·class="p">.</span><span·class="w"> |
| 601 | </span><span·class="p"·data-group-id="5 | 601 | </span><span·class="p"·data-group-id="5207147924-5">[</span><span·class="ss">a</span><span·class="p"·data-group-id="5207147924-5">]</span><span·class="gp·unselectable"> |
| 602 | 3>·</span><span·class="n">S</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">sets</span><span·class="p">:</span><span·class="nf">del_element</span><span·class="p"·data-group-id="5 | 602 | 3>·</span><span·class="n">S</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">sets</span><span·class="p">:</span><span·class="nf">del_element</span><span·class="p"·data-group-id="5207147924-6">(</span><span·class="ss">x</span><span·class="p">,</span><span·class="w">·</span><span·class="n">S</span><span·class="p"·data-group-id="5207147924-6">)</span><span·class="p">.</span><span·class="gp·unselectable"> |
| 603 | 4>·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">sort</span><span·class="p"·data-group-id="5 | 603 | 4>·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">sort</span><span·class="p"·data-group-id="5207147924-7">(</span><span·class="nc">sets</span><span·class="p">:</span><span·class="nf">to_list</span><span·class="p"·data-group-id="5207147924-8">(</span><span·class="n">S</span><span·class="p"·data-group-id="5207147924-8">)</span><span·class="p"·data-g[·...·truncated·by·diffoscope;·len:·19,·SHA:·cdf90ee4b76f77bd312b8b6c4a6c308fb33e1d2672643c995e9bf854b914ad51·...·]-7">)</span><span·class="p">.</span><span·class="w"> |
| 604 | </span><span·class="p"·data-group-id="5 | 604 | </span><span·class="p"·data-group-id="5207147924-9">[</span><span·class="ss">a</span><span·class="p">,</span><span·class="ss">b</span><span·class="p"·data-group-id="5207147924-9">]</span></code></pre> |
| 605 | ··</section> | 605 | ··</section> |
| 606 | </section> | 606 | </section> |
| 607 | <section·class="detail"·id="filter/2"> | 607 | <section·class="detail"·id="filter/2"> |
| 608 | ··<div·class="detail-header"> | 608 | ··<div·class="detail-header"> |
| 609 | ····<a·href="#filter/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 609 | ····<a·href="#filter/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 610 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 610 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 631, 19 lines modified | Offset 631, 19 lines modified | ||
| 631 | <p>Filters·elements·in·<code·class="inline">Set1</code>·using·predicate·function·<code·class="inline">Pred</code>.</p><h2·id="filter/2-examples"·class="section-heading"> | 631 | <p>Filters·elements·in·<code·class="inline">Set1</code>·using·predicate·function·<code·class="inline">Pred</code>.</p><h2·id="filter/2-examples"·class="section-heading"> |
| 632 | ··<a·href="#filter/2-examples"·class="hover-link"> | 632 | ··<a·href="#filter/2-examples"·class="hover-link"> |
| 633 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 633 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 634 | ··</a> | 634 | ··</a> |
| 635 | ··<span·class="text">Examples</span> | 635 | ··<span·class="text">Examples</span> |
| 636 | </h2> | 636 | </h2> |
| 637 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">S</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">sets</span><span·class="p">:</span><span·class="nf">from_list</span><span·class="p"·data-group-id="07 | 637 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">S</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">sets</span><span·class="p">:</span><span·class="nf">from_list</span><span·class="p"·data-group-id="1071796315-1">(</span><span·class="p"·data-group-id="1071796315-2">[</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">2</span><span·class="p">,</span><span·class="mi">3</span><span·class="p">,</span><span·class="mi">4</span><span·cla[·...·truncated·by·diffoscope;·len:·232,·SHA:·bce0fbc87e6d2a89321acf3f40bd27ee759816e35602f9927fe1b86802542a47·...·]-1">)</span><span·class="p">.</span><span·class="gp·unselectable"> |
| 638 | 2>·</span><span·class="n">IsEven</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id="07 | 638 | 2>·</span><span·class="n">IsEven</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id="1071796315-3">(</span><span·class="n">N</span><span·class="p"·data-group-id="1071796315-3">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">N</span><span·class="w">·</span><span·class="ow">rem</span><span·class="w">·</span><span·class="mi">2</span><span·class="w">·</span><span·class="o">=:=</span><span·class="w">·</span><span·class="mi">0</span><span·class="w">·</span><span·class="k">end</span><span·class="p">.</span><span·class="gp·unselectable"> |
| 639 | 3>·</span><span·class="n">Filtered</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">sets</span><span·class="p">:</span><span·class="nf">filter</span><span·class="p"·data-group-id="07 | 639 | 3>·</span><span·class="n">Filtered</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">sets</span><span·class="p">:</span><span·class="nf">filter</span><span·class="p"·data-group-id="1071796315-4">(</span><span·class="n">IsEven</span><span·class="p">,</span><span·class="w">·</span><span·class="n">S</span><span·class="p"·data-group-id="1071796315-4">)</span><span·class="p">.</span><span·class="gp·unselectable"> |
| 640 | 4>·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">sort</span><span·class="p"·data-group-id="07 | 640 | 4>·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">sort</span><span·class="p"·data-group-id="1071796315-5">(</span><span·class="nc">sets</span><span·class="p">:</span><span·class="nf">to_list</span><span·class="p"·data-group-id="1071796315-6">(</span><span·class="n">Filtered</span><span·class="p"·data-group-id="1071796315-6">)</span><span·class="p[·...·truncated·by·diffoscope;·len:·27,·SHA:·911e0bc3748a351ad27169c61407ffe4fb2bc681ae3072ef04ad0b759dbad969·...·]-5">)</span><span·class="p">.</span><span·class="w"> |
| 641 | </span><span·class="p"·data-group-id="07 | 641 | </span><span·class="p"·data-group-id="1071796315-7">[</span><span·class="mi">2</span><span·class="p">,</span><span·class="mi">4</span><span·class="p">,</span><span·class="mi">6</span><span·class="p"·data-group-id="1071796315-7">]</span></code></pre> |
| 642 | ··</section> | 642 | ··</section> |
| 643 | </section> | 643 | </section> |
| 644 | <section·class="detail"·id="filtermap/2"> | 644 | <section·class="detail"·id="filtermap/2"> |
| 645 | ··<div·class="detail-header"> | 645 | ··<div·class="detail-header"> |
| 646 | ····<a·href="#filtermap/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 646 | ····<a·href="#filtermap/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 647 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 647 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 670, 31 lines modified | Offset 670, 31 lines modified | ||
| 670 | ·······················Set2·::·<a·href="#t:set/1">set</a>(Element1·|·Element2).</pre> | 670 | ·······················Set2·::·<a·href="#t:set/1">set</a>(Element1·|·Element2).</pre> |
| 671 | ······</div> | 671 | ······</div> |
| 672 | <p>Calls·<code·class="inline">Fun(Elem)</code>·for·each·<code·class="inline">Elem</code>·of·<code·class="inline">Set1</code>·to·update·or·remove | 672 | <p>Calls·<code·class="inline">Fun(Elem)</code>·for·each·<code·class="inline">Elem</code>·of·<code·class="inline">Set1</code>·to·update·or·remove |
| 673 | elements·from·<code·class="inline">Set1</code>.</p><p><code·class="inline">Fun/1</code>·must·return·either·a·Boolean·or·a·tuple·<code·class="inline">{true,·Value}</code>.·The | 673 | elements·from·<code·class="inline">Set1</code>.</p><p><code·class="inline">Fun/1</code>·must·return·either·a·Boolean·or·a·tuple·<code·class="inline">{true,·Value}</code>.·The |
| 674 | function·returns·the·set·of·elements·for·which·<code·class="inline">Fun</code>·returns·a·new | 674 | function·returns·the·set·of·elements·for·which·<code·class="inline">Fun</code>·returns·a·new |
| 675 | value,·with·<code·class="inline">true</code>·being·equivalent·to·<code·class="inline">{true,·Elem}</code>.</p><p><a·href="#filtermap/2"><code·class="inline">sets:filtermap/2</code></a>·behaves·as·if·it·were·defined·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">filtermap</span><span·class="p"·data-group-id=" | 675 | value,·with·<code·class="inline">true</code>·being·equivalent·to·<code·class="inline">{true,·Elem}</code>.</p><p><a·href="#filtermap/2"><code·class="inline">sets:filtermap/2</code></a>·behaves·as·if·it·were·defined·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">filtermap</span><span·class="p"·data-group-id="6336044544-1">(</span><span·class="n">Fun</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Set1</span><span·class="p"·data-group-id="6336044544-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 676 | ····</span><span·class="nc">sets</span><span·class="p">:</span><span·class="nf">from_list</span><span·class="p"·data-group-id=" | 676 | ····</span><span·class="nc">sets</span><span·class="p">:</span><span·class="nf">from_list</span><span·class="p"·data-group-id="6336044544-2">(</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">filtermap</span><span·class="p"·data-group-id="6336044544-3">(</span><span·class="n">Fun</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Set1<[·...·truncated·by·diffoscope;·len:·99,·SHA:·8511bdda8d899c791bf96236be2abc5f4da21068bc8022620572495fbe1e32e9·...·]4-2">)</span><span·class="p">.</span></code></pre><h2·id="filtermap/2-examples"·class="section-heading"> |
| 677 | ··<a·href="#filtermap/2-examples"·class="hover-link"> | 677 | ··<a·href="#filtermap/2-examples"·class="hover-link"> |
| 678 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 678 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 679 | ··</a> | 679 | ··</a> |
| 680 | ··<span·class="text">Examples</span> | 680 | ··<span·class="text">Examples</span> |
| 681 | </h2> | 681 | </h2> |
| 682 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">S</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">sets</span><span·class="p">:</span><span·class="nf">from_list</span><span·class="p"·data-group-id="7 | 682 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">S</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">sets</span><span·class="p">:</span><span·class="nf">from_list</span><span·class="p"·data-group-id="4678922572-1">(</span><span·class="p"·data-group-id="4678922572-2">[</span><span·class="mi">2</span><span·class="p">,</span><span·class="mi">4</span><span·class="p">,</span><span·class="mi">5</span><span·class="p">,</span><span·class="mi">6</span><span·cla[·...·truncated·by·diffoscope;·len:·183,·SHA:·edc089f5bc341ae6866c2ddb2bc78303ad52c27ba7a98b5205bfe63c64ad656c·...·]-1">)</span><span·class="gp·unselectable"> |
| 683 | 2>·</span><span·class="n">F</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id="7 | 683 | 2>·</span><span·class="n">F</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id="4678922572-3">(</span><span·class="n">X</span><span·class="p"·data-group-id="4678922572-3">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 684 | ···········</span><span·class="k">case</span><span·class="w">·</span><span·class="n">X</span><span·class="w">·</span><span·class="ow">rem</span><span·class="w">·</span><span·class="mi">2</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> | 684 | ···········</span><span·class="k">case</span><span·class="w">·</span><span·class="n">X</span><span·class="w">·</span><span·class="ow">rem</span><span·class="w">·</span><span·class="mi">2</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 685 | ···············</span><span·class="mi">0</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="p"·data-group-id="7 | 685 | ···············</span><span·class="mi">0</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="p"·data-group-id="4678922572-4">{</span><span·class="ss">true</span><span·class="p">,</span><span·class="w">·</span><span·class="n">X</span><span·class="w">·</span><span·class="ow">div</span><span·class="w">·</span><span·class="mi">2</span><span·class="p"·data-group-id="467[·...·truncated·by·diffoscope;·len:·7,·SHA:·0ca2acaac8d9a909d70497eb33ac4eff8fdf5851fb32f189a5b8c3889ce2e8e2·...·]-4">}</span><span·class="p">;</span><span·class="w"> |
| 686 | ···············</span><span·class="mi">1</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">false</span><span·class="w"> | 686 | ···············</span><span·class="mi">1</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">false</span><span·class="w"> |
| 687 | ···········</span><span·class="k">end</span><span·class="w"> | 687 | ···········</span><span·class="k">end</span><span·class="w"> |
| 688 | ········</span><span·class="k">end</span><span·class="p">.</span><span·class="gp·unselectable"> | 688 | ········</span><span·class="k">end</span><span·class="p">.</span><span·class="gp·unselectable"> |
| 689 | 3>·</span><span·class="n">Set</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">sets</span><span·class="p">:</span><span·class="nf">filtermap</span><span·class="p"·data-group-id="7 | 689 | 3>·</span><span·class="n">Set</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">sets</span><span·class="p">:</span><span·class="nf">filtermap</span><span·class="p"·data-group-id="4678922572-5">(</span><span·class="n">F</span><span·class="p">,</span><span·class="w">·</span><span·class="n">S</span><span·class="p"·data-group-id="4678922572-5">)</span><span·class="p">.</span><span·class="gp·unselectable"> |
| 690 | 4>·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">sort</span><span·class="p"·data-group-id="7 | 690 | 4>·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">sort</span><span·class="p"·data-group-id="4678922572-6">(</span><span·class="nc">sets</span><span·class="p">:</span><span·class="nf">to_list</span><span·class="p"·data-group-id="4678922572-7">(</span><span·class="n">Set</span><span·class="p"·data-group-id="4678922572-7">)</span><span·class="p"·dat[·...·truncated·by·diffoscope;·len:·22,·SHA:·927cdbc7004c2ce8dd4faeb1b7caecbe67aca12014d7576b5b0d4baabbd996a6·...·]-6">)</span><span·class="p">.</span><span·class="w"> |
| 691 | </span><span·class="p"·data-group-id="7 | 691 | </span><span·class="p"·data-group-id="4678922572-8">[</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">2</span><span·class="p">,</span><span·class="mi">3</span><span·class="p">,</span><span·class="mi">4</span><span·class="p"·data-group-id="4678922572-8">]</span></code></pre> |
| 692 | ··</section> | 692 | ··</section> |
| 693 | </section> | 693 | </section> |
| 694 | <section·class="detail"·id="fold/3"> | 694 | <section·class="detail"·id="fold/3"> |
| 695 | ··<div·class="detail-header"> | 695 | ··<div·class="detail-header"> |
| 696 | ····<a·href="#fold/3"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 696 | ····<a·href="#fold/3"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 697 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 697 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 726, 17 lines modified | Offset 726, 17 lines modified | ||
| 726 | <p>Folds·<code·class="inline">Function</code>·over·every·element·in·<code·class="inline">Set</code>·and·returns·the·final·value·of | 726 | <p>Folds·<code·class="inline">Function</code>·over·every·element·in·<code·class="inline">Set</code>·and·returns·the·final·value·of |
| 727 | the·accumulator.</p><p>The·evaluation·order·is·undefined.</p><h2·id="fold/3-examples"·class="section-heading"> | 727 | the·accumulator.</p><p>The·evaluation·order·is·undefined.</p><h2·id="fold/3-examples"·class="section-heading"> |
| 728 | ··<a·href="#fold/3-examples"·class="hover-link"> | 728 | ··<a·href="#fold/3-examples"·class="hover-link"> |
| 729 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 729 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 730 | ··</a> | 730 | ··</a> |
| 731 | ··<span·class="text">Examples</span> | 731 | ··<span·class="text">Examples</span> |
| 732 | </h2> | 732 | </h2> |
| 733 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">S</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">sets</span><span·class="p">:</span><span·class="nf">from_list</span><span·class="p"·data-group-id="7 | 733 | <pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">S</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">sets</span><span·class="p">:</span><span·class="nf">from_list</span><span·class="p"·data-group-id="7606887928-1">(</span><span·class="p"·data-group-id="7606887928-2">[</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">2</span><span·class="p">,</span><span·class="mi">3</span><span·class="p">,</span><span·class="mi">4</span><span·clas[·...·truncated·by·diffoscope;·len:·84,·SHA:·51511c50558070f3da850dfdb2d64f19bffa4979cc805adb132aa2f46ea23a70·...·]-1">)</span><span·class="p">.</span><span·class="gp·unselectable"> |
| 734 | 2>·</span><span·class="n">Plus</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="k">fun</span><span·class="w">·</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="ss">'+'</span><span·class="p">/</span><span·class="mi">2</span><span·class="p">.</span><span·class="gp·unselectable"> | 734 | 2>·</span><span·class="n">Plus</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="k">fun</span><span·class="w">·</span><span·class="nc">erlang</span><span·class="p">:</span><span·class="ss">'+'</span><span·class="p">/</span><span·class="mi">2</span><span·class="p">.</span><span·class="gp·unselectable"> |
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| 162 | used·by·the·compiler·are·unavailable·at·runtime.·So,·to·read·the·record·syntax | 162 | used·by·the·compiler·are·unavailable·at·runtime.·So,·to·read·the·record·syntax |
| 163 | and·print·tuples·as·records·when·possible,·record·definitions·must·be·maintained | 163 | and·print·tuples·as·records·when·possible,·record·definitions·must·be·maintained |
| 164 | by·the·shell·itself.</p><p>The·shell·commands·for·reading,·defining,·forgetting,·listing,·and·printing | 164 | by·the·shell·itself.</p><p>The·shell·commands·for·reading,·defining,·forgetting,·listing,·and·printing |
| 165 | records·are·described·below.·Notice·that·each·job·has·its·own·set·of·record | 165 | records·are·described·below.·Notice·that·each·job·has·its·own·set·of·record |
| 166 | definitions.·To·facilitate·matters,·record·definitions·in·modules | 166 | definitions.·To·facilitate·matters,·record·definitions·in·modules |
| 167 | <code·class="inline">shell_default</code>·and·<code·class="inline">user_default</code>·(if·loaded)·are·read·each·time·a·new·job·is | 167 | <code·class="inline">shell_default</code>·and·<code·class="inline">user_default</code>·(if·loaded)·are·read·each·time·a·new·job·is |
| 168 | started.·For·example,·adding·the·following·line·to·<code·class="inline">user_default</code>·makes·the | 168 | started.·For·example,·adding·the·following·line·to·<code·class="inline">user_default</code>·makes·the |
| 169 | definition·of·<code·class="inline">file_info</code>·readily·available·in·the·shell:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id=" | 169 | definition·of·<code·class="inline">file_info</code>·readily·available·in·the·shell:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id="3221546596-1">(</span><span·class="s">"kernel/include/file.hrl"</span><span·class="p"·data-group-id="3221546596-1">)</span><span·class="p">.</span></code></pre><p>The·shell·runs·in·two·modes:</p><ul><li><code·class="inline">Normal·(possibly·restricted)</code>·mode,·in·which·commands·can·be·edited·and |
| 170 | expressions·evaluated</li><li>Job·Control·Mode,·<code·class="inline">JCL</code>,·in·which·jobs·can·be·started,·killed,·detached,·and | 170 | expressions·evaluated</li><li>Job·Control·Mode,·<code·class="inline">JCL</code>,·in·which·jobs·can·be·started,·killed,·detached,·and |
| 171 | connected</li></ul><p>Only·the·currently·connected·job·can·'talk'·to·the·shell.</p><h2·id="module-shell-commands"·class="section-heading"> | 171 | connected</li></ul><p>Only·the·currently·connected·job·can·'talk'·to·the·shell.</p><h2·id="module-shell-commands"·class="section-heading"> |
| 172 | ··<a·href="#module-shell-commands"·class="hover-link"> | 172 | ··<a·href="#module-shell-commands"·class="hover-link"> |
| 173 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 173 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 174 | ··</a> | 174 | ··</a> |
| 175 | ··<span·class="text">Shell·Commands</span> | 175 | ··<span·class="text">Shell·Commands</span> |
| 176 | </h2> | 176 | </h2> |
| Offset 230, 114 lines modified | Offset 230, 114 lines modified | ||
| 230 | ··<a·href="#module-example"·class="hover-link"> | 230 | ··<a·href="#module-example"·class="hover-link"> |
| 231 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 231 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 232 | ··</a> | 232 | ··</a> |
| 233 | ··<span·class="text">Example</span> | 233 | ··<span·class="text">Example</span> |
| 234 | </h2> | 234 | </h2> |
| 235 | <p>The·following·example·is·a·long·dialog·with·the·shell.·Commands·starting·with | 235 | <p>The·following·example·is·a·long·dialog·with·the·shell.·Commands·starting·with |
| 236 | <code·class="inline">></code>·are·inputs·to·the·shell.·All·other·lines·are·output·from·the·shell.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="ss">strider</span><span·class="w">·</span><span·class="mi">1</span><span·class="o">></span><span·class="w">·</span><span·class="ss">erl</span><span·class="w"> | 236 | <code·class="inline">></code>·are·inputs·to·the·shell.·All·other·lines·are·output·from·the·shell.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="ss">strider</span><span·class="w">·</span><span·class="mi">1</span><span·class="o">></span><span·class="w">·</span><span·class="ss">erl</span><span·class="w"> |
| 237 | </span><span·class="n">Erlang</span><span·class="w">·</span><span·class="p"·data-group-id=" | 237 | </span><span·class="n">Erlang</span><span·class="w">·</span><span·class="p"·data-group-id="4422822974-1">(</span><span·class="n">BEAM</span><span·class="p"·data-group-id="4422822974-1">)</span><span·class="w">·</span><span·class="ss">emulator</span><span·class="w">·</span><span·class="ss">version</span><span·class="w">·</span><span·class="mf">5.[·...·truncated·by·diffoscope;·len:·364,·SHA:·fa15e898e8aa279f8abad0202fdf01fa94a8aa64d27508dd6351903a0d440ddf·...·]-3">]</span><span·class="w"> |
| 238 | </span><span·class="n">Eshell</span><span·class="w">·</span><span·class="n">V5</span><span·class="p">.</span><span·class="mi">3</span><span·class="w">··</span><span·class="p"·data-group-id=" | 238 | </span><span·class="n">Eshell</span><span·class="w">·</span><span·class="n">V5</span><span·class="p">.</span><span·class="mi">3</span><span·class="w">··</span><span·class="p"·data-group-id="4422822974-4">(</span><span·class="ss">abort</span><span·class="w">·</span><span·class="ss">with</span><span·class="w">·</span><span·class="err">^</span><span·class="n">G</span><span·class="p"·data-group-id="4422822974-4">)</span><span·class="gp·unselectable"> |
| 239 | 1>·</span><span·class="n">Str</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"abcd"</span><span·class="p">.</span><span·class="w"> | 239 | 1>·</span><span·class="n">Str</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"abcd"</span><span·class="p">.</span><span·class="w"> |
| 240 | </span><span·class="s">"abcd"</span></code></pre><p>Command·1·sets·variable·<code·class="inline">Str</code>·to·string·<code·class="inline">"abcd"</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">2>·</span><span·class="n">L</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">length</span><span·class="p"·data-group-id=" | 240 | </span><span·class="s">"abcd"</span></code></pre><p>Command·1·sets·variable·<code·class="inline">Str</code>·to·string·<code·class="inline">"abcd"</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">2>·</span><span·class="n">L</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">length</span><span·class="p"·data-group-id="6733259372-1">(</span><span·class="n">Str</span><span·class="p"·data-group-id="6733259372-1">)</span><span·class="p">.</span><span·class="w"> |
| 241 | </span><span·class="mi">4</span></code></pre><p>Command·2·sets·<code·class="inline">L</code>·to·the·length·of·string·<code·class="inline">Str</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">3>·</span><span·class="n">Descriptor</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 241 | </span><span·class="mi">4</span></code></pre><p>Command·2·sets·<code·class="inline">L</code>·to·the·length·of·string·<code·class="inline">Str</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">3>·</span><span·class="n">Descriptor</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="0905142189-1">{</span><span·class="n">L</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">list_to_atom</span><span·class="p"·data-group-id="0905142189-2">(</span><span·class="n">Str</span><span·class="p"·data-group-id="0905142189-2">)<[·...·truncated·by·diffoscope;·len:·47,·SHA:·9e9979d22655d323a9ee65884581b1278fbcb7d888a6a70e42fe47ef47bd4a1b·...·]-1">}</span><span·class="p">.</span><span·class="w"> |
| 242 | </span><span·class="p"·data-group-id=" | 242 | </span><span·class="p"·data-group-id="0905142189-3">{</span><span·class="mi">4</span><span·class="p">,</span><span·class="ss">abcd</span><span·class="p"·data-group-id="0905142189-3">}</span></code></pre><p>Command·3·builds·the·tuple·<code·class="inline">Descriptor</code>,·evaluating·the·BIF |
| 243 | <a·href="../../../../erts-16.0/doc/html/erlang.html#list_to_atom/1"><code·class="inline">list_to_atom/1</code>·</a>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">4>·</span><span·class="n">L</span><span·class="p">.</span><span·class="w"> | 243 | <a·href="../../../../erts-16.0/doc/html/erlang.html#list_to_atom/1"><code·class="inline">list_to_atom/1</code>·</a>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">4>·</span><span·class="n">L</span><span·class="p">.</span><span·class="w"> |
| 244 | </span><span·class="mi">4</span></code></pre><p>Command·4·prints·the·value·of·variable·<code·class="inline">L</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">5>·</span><span·class="nf">b</span><span·class="p"·data-group-id=" | 244 | </span><span·class="mi">4</span></code></pre><p>Command·4·prints·the·value·of·variable·<code·class="inline">L</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">5>·</span><span·class="nf">b</span><span·class="p"·data-group-id="2867564552-1">(</span><span·class="p"·data-group-id="2867564552-1">)</span><span·class="p">.</span><span·class="w"> |
| 245 | </span><span·class="n">Descriptor</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 245 | </span><span·class="n">Descriptor</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="2867564552-2">{</span><span·class="mi">4</span><span·class="p">,</span><span·class="ss">abcd</span><span·class="p"·data-group-id="2867564552-2">}</span><span·class="w"> |
| 246 | </span><span·class="n">L</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">4</span><span·class="w"> | 246 | </span><span·class="n">L</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">4</span><span·class="w"> |
| 247 | </span><span·class="n">Str</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"abcd"</span><span·class="w"> | 247 | </span><span·class="n">Str</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"abcd"</span><span·class="w"> |
| 248 | </span><span·class="ss">ok</span></code></pre><p>Command·5·evaluates·the·internal·shell·command·<code·class="inline">b()</code>,·which·is·an·abbreviation | 248 | </span><span·class="ss">ok</span></code></pre><p>Command·5·evaluates·the·internal·shell·command·<code·class="inline">b()</code>,·which·is·an·abbreviation |
| 249 | of·"bindings".·This·prints·the·current·shell·variables·and·their·bindings.·<code·class="inline">ok</code> | 249 | of·"bindings".·This·prints·the·current·shell·variables·and·their·bindings.·<code·class="inline">ok</code> |
| 250 | at·the·end·is·the·return·value·of·function·<code·class="inline">b()</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">6>·</span><span·class="nf">f</span><span·class="p"·data-group-id=" | 250 | at·the·end·is·the·return·value·of·function·<code·class="inline">b()</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">6>·</span><span·class="nf">f</span><span·class="p"·data-group-id="6459270218-1">(</span><span·class="n">L</span><span·class="p"·data-group-id="6459270218-1">)</span><span·class="p">.</span><span·class="w"> |
| 251 | </span><span·class="ss">ok</span></code></pre><p>Command·6·evaluates·the·internal·shell·command·<code·class="inline">f(L)</code>·(abbreviation·of | 251 | </span><span·class="ss">ok</span></code></pre><p>Command·6·evaluates·the·internal·shell·command·<code·class="inline">f(L)</code>·(abbreviation·of |
| 252 | "forget").·The·value·of·variable·<code·class="inline">L</code>·is·removed.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">7>·</span><span·class="nf">b</span><span·class="p"·data-group-id=" | 252 | "forget").·The·value·of·variable·<code·class="inline">L</code>·is·removed.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">7>·</span><span·class="nf">b</span><span·class="p"·data-group-id="4441043334-1">(</span><span·class="p"·data-group-id="4441043334-1">)</span><span·class="p">.</span><span·class="w"> |
| 253 | </span><span·class="n">Descriptor</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 253 | </span><span·class="n">Descriptor</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="4441043334-2">{</span><span·class="mi">4</span><span·class="p">,</span><span·class="ss">abcd</span><span·class="p"·data-group-id="4441043334-2">}</span><span·class="w"> |
| 254 | </span><span·class="n">Str</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"abcd"</span><span·class="w"> | 254 | </span><span·class="n">Str</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"abcd"</span><span·class="w"> |
| 255 | </span><span·class="ss">ok</span></code></pre><p>Command·7·prints·the·new·bindings.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">8>·</span><span·class="nf">f</span><span·class="p"·data-group-id=" | 255 | </span><span·class="ss">ok</span></code></pre><p>Command·7·prints·the·new·bindings.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">8>·</span><span·class="nf">f</span><span·class="p"·data-group-id="8241659861-1">(</span><span·class="n">L</span><span·class="p"·data-group-id="8241659861-1">)</span><span·class="p">.</span><span·class="w"> |
| 256 | </span><span·class="ss">ok</span></code></pre><p>Command·8·has·no·effect,·as·<code·class="inline">L</code>·has·no·value.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">9>·</span><span·class="p"·data-group-id=" | 256 | </span><span·class="ss">ok</span></code></pre><p>Command·8·has·no·effect,·as·<code·class="inline">L</code>·has·no·value.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">9>·</span><span·class="p"·data-group-id="8996697037-1">{</span><span·class="n">L</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="p"·data-group-id="8996697037-1">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">Descriptor</span><span·class="p">.</span><span·class="w"> |
| 257 | </span><span·class="p"·data-group-id=" | 257 | </span><span·class="p"·data-group-id="8996697037-2">{</span><span·class="mi">4</span><span·class="p">,</span><span·class="ss">abcd</span><span·class="p"·data-group-id="8996697037-2">}</span></code></pre><p>Command·9·performs·a·pattern·matching·operation·on·<code·class="inline">Descriptor</code>,·binding·a·new |
| 258 | value·to·<code·class="inline">L</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">10>·</span><span·class="n">L</span><span·class="p">.</span><span·class="w"> | 258 | value·to·<code·class="inline">L</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">10>·</span><span·class="n">L</span><span·class="p">.</span><span·class="w"> |
| 259 | </span><span·class="mi">4</span></code></pre><p>Command·10·prints·the·current·value·of·<code·class="inline">L</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">11>·</span><span·class="p"·data-group-id=" | 259 | </span><span·class="mi">4</span></code></pre><p>Command·10·prints·the·current·value·of·<code·class="inline">L</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">11>·</span><span·class="p"·data-group-id="8762986533-1">{</span><span·class="n">P</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Q</span><span·class="p">,</span><span·class="w">·</span><span·class="n">R</span><span·class="p"·data-group-id="8762986533-1">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">Descriptor</span><span·class="p">.</span><span·class="w"> |
| 260 | </span><span·class="gt">**·exception·error:·no·match·of·right·hand·side·value·{4,abcd}</span></code></pre><p>Command·11·tries·to·match·<code·class="inline">{P,·Q,·R}</code>·against·<code·class="inline">Descriptor</code>,·which·is·<code·class="inline">{4,·abc}</code>. | 260 | </span><span·class="gt">**·exception·error:·no·match·of·right·hand·side·value·{4,abcd}</span></code></pre><p>Command·11·tries·to·match·<code·class="inline">{P,·Q,·R}</code>·against·<code·class="inline">Descriptor</code>,·which·is·<code·class="inline">{4,·abc}</code>. |
| 261 | The·match·fails·and·none·of·the·new·variables·become·bound.·The·printout | 261 | The·match·fails·and·none·of·the·new·variables·become·bound.·The·printout |
| 262 | starting·with·"<code·class="inline">**·exception·error:</code>"·is·not·the·value·of·the·expression·(the | 262 | starting·with·"<code·class="inline">**·exception·error:</code>"·is·not·the·value·of·the·expression·(the |
| 263 | expression·had·no·value·because·its·evaluation·failed),·but·a·warning·printed·by | 263 | expression·had·no·value·because·its·evaluation·failed),·but·a·warning·printed·by |
| 264 | the·system·to·inform·the·user·that·an·error·has·occurred.·The·values·of·the | 264 | the·system·to·inform·the·user·that·an·error·has·occurred.·The·values·of·the |
| 265 | other·variables·(<code·class="inline">L</code>,·<code·class="inline">Str</code>,·and·so·on)·are·unchanged.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">12>·</span><span·class="n">P</span><span·class="p">.</span><span·class="w"> | 265 | other·variables·(<code·class="inline">L</code>,·<code·class="inline">Str</code>,·and·so·on)·are·unchanged.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">12>·</span><span·class="n">P</span><span·class="p">.</span><span·class="w"> |
| 266 | </span><span·class="gt">*·1:1:·variable·'P'·is·unbound</span><span·class="gp·unselectable"> | 266 | </span><span·class="gt">*·1:1:·variable·'P'·is·unbound</span><span·class="gp·unselectable"> |
| 267 | 13>·</span><span·class="n">Descriptor</span><span·class="p">.</span><span·class="w"> | 267 | 13>·</span><span·class="n">Descriptor</span><span·class="p">.</span><span·class="w"> |
| 268 | </span><span·class="p"·data-group-id=" | 268 | </span><span·class="p"·data-group-id="1621806849-1">{</span><span·class="mi">4</span><span·class="p">,</span><span·class="ss">abcd</span><span·class="p"·data-group-id="1621806849-1">}</span></code></pre><p>Commands·12·and·13·show·that·<code·class="inline">P</code>·is·unbound·because·the·previous·command·failed, |
| 269 | and·that·<code·class="inline">Descriptor</code>·has·not·changed.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="mi">14</span><span·class="o">></span><span·class="p"·data-group-id="6 | 269 | and·that·<code·class="inline">Descriptor</code>·has·not·changed.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="mi">14</span><span·class="o">></span><span·class="p"·data-group-id="6439414684-1">{</span><span·class="n">P</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Q</span><span·class="p"·data-group-id="6439414684-1">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">Descriptor</span><span·class="p">.</span><span·class="w"> |
| 270 | </span><span·class="p"·data-group-id="6 | 270 | </span><span·class="p"·data-group-id="6439414684-2">{</span><span·class="mi">4</span><span·class="p">,</span><span·class="ss">abcd</span><span·class="p"·data-group-id="6439414684-2">}</span><span·class="gp·unselectable"> |
| 271 | 15>·</span><span·class="n">P</span><span·class="p">.</span><span·class="w"> | 271 | 15>·</span><span·class="n">P</span><span·class="p">.</span><span·class="w"> |
| 272 | </span><span·class="mi">4</span></code></pre><p>Commands·14·and·15·show·a·correct·match·where·<code·class="inline">P</code>·and·<code·class="inline">Q</code>·are·bound.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">16>·</span><span·class="nf">f</span><span·class="p"·data-group-id="6 | 272 | </span><span·class="mi">4</span></code></pre><p>Commands·14·and·15·show·a·correct·match·where·<code·class="inline">P</code>·and·<code·class="inline">Q</code>·are·bound.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">16>·</span><span·class="nf">f</span><span·class="p"·data-group-id="6832457309-1">(</span><span·class="p"·data-group-id="6832457309-1">)</span><span·class="p">.</span><span·class="w"> |
| 273 | </span><span·class="ss">ok</span></code></pre><p>Command·16·clears·all·bindings.</p><p>The·next·few·commands·assume·that·<code·class="inline">test1:demo(X)</code>·is·defined·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">demo</span><span·class="p"·data-group-id=" | 273 | </span><span·class="ss">ok</span></code></pre><p>Command·16·clears·all·bindings.</p><p>The·next·few·commands·assume·that·<code·class="inline">test1:demo(X)</code>·is·defined·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">demo</span><span·class="p"·data-group-id="1852949331-1">(</span><span·class="n">X</span><span·class="p"·data-group-id="1852949331-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 274 | </span><span·class="err"> </span><span·class="err"> </span><span·class="err"> </span><span·class="err"> </span><span·class="nf">put</span><span·class="p"·data-group-id=" | 274 | </span><span·class="err"> </span><span·class="err"> </span><span·class="err"> </span><span·class="err"> </span><span·class="nf">put</span><span·class="p"·data-group-id="1852949331-2">(</span><span·class="ss">aa</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">worked</span><span·class="p"·data-group-id="1852949331-2">)</span><span·class="p">,</span><span·class="w"> |
| 275 | </span><span·class="err"> </span><span·class="err"> </span><span·class="err"> </span><span·class="err"> </span><span·class="n">X</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">1</span><span·class="p">,</span><span·class="w"> | 275 | </span><span·class="err"> </span><span·class="err"> </span><span·class="err"> </span><span·class="err"> </span><span·class="n">X</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">1</span><span·class="p">,</span><span·class="w"> |
| 276 | </span><span·class="err"> </span><span·class="err"> </span><span·class="err"> </span><span·class="err"> </span><span·class="n">X</span><span·class="w">·</span><span·class="o">+</span><span·class="w">·</span><span·class="mi">10</span><span·class="p">.</span></code></pre><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">17>·</span><span·class="nf">put</span><span·class="p"·data-group-id=" | 276 | </span><span·class="err"> </span><span·class="err"> </span><span·class="err"> </span><span·class="err"> </span><span·class="n">X</span><span·class="w">·</span><span·class="o">+</span><span·class="w">·</span><span·class="mi">10</span><span·class="p">.</span></code></pre><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">17>·</span><span·class="nf">put</span><span·class="p"·data-group-id="5589543158-1">(</span><span·class="ss">aa</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">hello</span><span·class="p"·data-group-id="5589543158-1">)</span><span·class="p">.</span><span·class="w"> |
| 277 | </span><span·class="ss">undefined</span><span·class="gp·unselectable"> | 277 | </span><span·class="ss">undefined</span><span·class="gp·unselectable"> |
| 278 | 18>·</span><span·class="nf">get</span><span·class="p"·data-group-id=" | 278 | 18>·</span><span·class="nf">get</span><span·class="p"·data-group-id="5589543158-2">(</span><span·class="ss">aa</span><span·class="p"·data-group-id="5589543158-2">)</span><span·class="p">.</span><span·class="w"> |
| 279 | </span><span·class="ss">hello</span></code></pre><p>Commands·17·and·18·set·and·inspect·the·value·of·item·<code·class="inline">aa</code>·in·the·process | 279 | </span><span·class="ss">hello</span></code></pre><p>Commands·17·and·18·set·and·inspect·the·value·of·item·<code·class="inline">aa</code>·in·the·process |
| 280 | dictionary.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">19>·</span><span·class="n">Y</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">test1</span><span·class="p">:</span><span·class="nf">demo</span><span·class="p"·data-group-id=" | 280 | dictionary.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">19>·</span><span·class="n">Y</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">test1</span><span·class="p">:</span><span·class="nf">demo</span><span·class="p"·data-group-id="9327081216-1">(</span><span·class="mi">1</span><span·class="p"·data-group-id="9327081216-1">)</span><span·class="p">.</span><span·class="w"> |
| 281 | </span><span·class="mi">11</span></code></pre><p>Command·19·evaluates·<code·class="inline">test1:demo(1)</code>.·The·evaluation·succeeds·and·the·changes | 281 | </span><span·class="mi">11</span></code></pre><p>Command·19·evaluates·<code·class="inline">test1:demo(1)</code>.·The·evaluation·succeeds·and·the·changes |
| 282 | made·in·the·process·dictionary·become·visible·to·the·shell.·The·new·value·of | 282 | made·in·the·process·dictionary·become·visible·to·the·shell.·The·new·value·of |
| 283 | dictionary·item·<code·class="inline">aa</code>·can·be·seen·in·command·20.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">20>·</span><span·class="nf">get</span><span·class="p"·data-group-id=" | 283 | dictionary·item·<code·class="inline">aa</code>·can·be·seen·in·command·20.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">20>·</span><span·class="nf">get</span><span·class="p"·data-group-id="7656377970-1">(</span><span·class="p"·data-group-id="7656377970-1">)</span><span·class="p">.</span><span·class="w"> |
| 284 | </span><span·class="p"·data-group-id=" | 284 | </span><span·class="p"·data-group-id="7656377970-2">[</span><span·class="p"·data-group-id="7656377970-3">{</span><span·class="ss">aa</span><span·class="p">,</span><span·class="ss">worked</span><span·class="p"·data-group-id="7656377970-3">}</span><span·class="p"·data-group-id="7656377970-2">]</span><span·class="gp·unselectable"> |
| 285 | 21>·</span><span·class="nf">put</span><span·class="p"·data-group-id=" | 285 | 21>·</span><span·class="nf">put</span><span·class="p"·data-group-id="7656377970-4">(</span><span·class="ss">aa</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">hello</span><span·class="p"·data-group-id="7656377970-4">)</span><span·class="p">.</span><span·class="w"> |
| 286 | </span><span·class="ss">worked</span><span·class="gp·unselectable"> | 286 | </span><span·class="ss">worked</span><span·class="gp·unselectable"> |
| 287 | 22>·</span><span·class="n">Z</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">test1</span><span·class="p">:</span><span·class="nf">demo</span><span·class="p"·data-group-id=" | 287 | 22>·</span><span·class="n">Z</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">test1</span><span·class="p">:</span><span·class="nf">demo</span><span·class="p"·data-group-id="7656377970-5">(</span><span·class="mi">2</span><span·class="p"·data-group-id="7656377970-5">)</span><span·class="p">.</span><span·class="w"> |
| 288 | </span><span·class="gt">**·exception·error:·no·match·of·right·hand·side·value·1 | 288 | </span><span·class="gt">**·exception·error:·no·match·of·right·hand·side·value·1 |
| 289 | ·····in·function··test1:demo/1</span></code></pre><p>Commands·21·and·22·change·the·value·of·dictionary·item·<code·class="inline">aa</code>·to·<code·class="inline">hello</code>·and·call | 289 | ·····in·function··test1:demo/1</span></code></pre><p>Commands·21·and·22·change·the·value·of·dictionary·item·<code·class="inline">aa</code>·to·<code·class="inline">hello</code>·and·call |
| 290 | <code·class="inline">test1:demo(2)</code>.·Evaluation·fails·and·the·changes·made·to·the·dictionary·in | 290 | <code·class="inline">test1:demo(2)</code>.·Evaluation·fails·and·the·changes·made·to·the·dictionary·in |
| 291 | <code·class="inline">test1:demo(2)</code>,·before·the·error·occurred,·are·discarded.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">23>·</span><span·class="n">Z</span><span·class="p">.</span><span·class="w"> | 291 | <code·class="inline">test1:demo(2)</code>,·before·the·error·occurred,·are·discarded.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">23>·</span><span·class="n">Z</span><span·class="p">.</span><span·class="w"> |
| 292 | </span><span·class="gt">*·1:1:·variable·'Z'·is·unbound</span><span·class="gp·unselectable"> | 292 | </span><span·class="gt">*·1:1:·variable·'Z'·is·unbound</span><span·class="gp·unselectable"> |
| 293 | 24>·</span><span·class="nf">get</span><span·class="p"·data-group-id=" | 293 | 24>·</span><span·class="nf">get</span><span·class="p"·data-group-id="9214517418-1">(</span><span·class="ss">aa</span><span·class="p"·data-group-id="9214517418-1">)</span><span·class="p">.</span><span·class="w"> |
| 294 | </span><span·class="ss">hello</span></code></pre><p>Commands·23·and·24·show·that·<code·class="inline">Z</code>·was·not·bound·and·that·dictionary·item·<code·class="inline">aa</code>·has | 294 | </span><span·class="ss">hello</span></code></pre><p>Commands·23·and·24·show·that·<code·class="inline">Z</code>·was·not·bound·and·that·dictionary·item·<code·class="inline">aa</code>·has |
| 295 | retained·its·original·value.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">25>·</span><span·class="nf">erase</span><span·class="p"·data-group-id=" | 295 | retained·its·original·value.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">25>·</span><span·class="nf">erase</span><span·class="p"·data-group-id="6455940225-1">(</span><span·class="p"·data-group-id="6455940225-1">)</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">put</span><span·class="p"·data-group-id="6455940225-2">(</span><span·class="ss">aa</span><span·class="p">,</span><sp[·...·truncated·by·diffoscope;·len:·91,·SHA:·89ae9ba19964d91ebffdb331bb9d07e227e7412cfd03ba6e4d9fceec4c1ff27d·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 296 | </span><span·class="ss">undefined</span><span·class="gp·unselectable"> | 296 | </span><span·class="ss">undefined</span><span·class="gp·unselectable"> |
| 297 | 26>·</span><span·class="nf">spawn</span><span·class="p"·data-group-id=" | 297 | 26>·</span><span·class="nf">spawn</span><span·class="p"·data-group-id="6455940225-3">(</span><span·class="ss">test1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">demo</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6455940225-4">[</span><span·class="mi">1</span><sp[·...·truncated·by·diffoscope;·len:·91,·SHA:·46e8a3149207654a4e580e25cc576ad105b1e0523639d63d27d6de07452398f4·...·]-3">)</span><span·class="p">.</span><span·class="w"> |
| 298 | </span><span·class="o"><</span><span·class="mf">0.57</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="gp·unselectable"> | 298 | </span><span·class="o"><</span><span·class="mf">0.57</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="gp·unselectable"> |
| 299 | 27>·</span><span·class="nf">get</span><span·class="p"·data-group-id=" | 299 | 27>·</span><span·class="nf">get</span><span·class="p"·data-group-id="6455940225-5">(</span><span·class="ss">aa</span><span·class="p"·data-group-id="6455940225-5">)</span><span·class="p">.</span><span·class="w"> |
| 300 | </span><span·class="ss">hello</span></code></pre><p>Commands·25,·26,·and·27·show·the·effect·of·evaluating·<code·class="inline">test1:demo(1)</code>·in·the | 300 | </span><span·class="ss">hello</span></code></pre><p>Commands·25,·26,·and·27·show·the·effect·of·evaluating·<code·class="inline">test1:demo(1)</code>·in·the |
| 301 | background.·In·this·case,·the·expression·is·evaluated·in·a·newly·spawned | 301 | background.·In·this·case,·the·expression·is·evaluated·in·a·newly·spawned |
| 302 | process.·Any·changes·made·in·the·process·dictionary·are·local·to·the·newly | 302 | process.·Any·changes·made·in·the·process·dictionary·are·local·to·the·newly |
| 303 | spawned·process·and·therefore·not·visible·to·the·shell.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">28>·</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 303 | spawned·process·and·therefore·not·visible·to·the·shell.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">28>·</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="5997550164-1">(</span><span·class="s">"hello·hello\n"</span><span·class="p"·data-group-id="5997550164-1">)</span><span·class="p">.</span><span·class="w"> |
| 304 | </span><span·class="ss">hello</span><span·class="w">·</span><span·class="ss">hello</span><span·class="w"> | 304 | </span><span·class="ss">hello</span><span·class="w">·</span><span·class="ss">hello</span><span·class="w"> |
| 305 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> | 305 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> |
| 306 | 29>·</span><span·class="nf">e</span><span·class="p"·data-group-id=" | 306 | 29>·</span><span·class="nf">e</span><span·class="p"·data-group-id="5997550164-2">(</span><span·class="mi">28</span><span·class="p"·data-group-id="5997550164-2">)</span><span·class="p">.</span><span·class="w"> |
| 307 | </span><span·class="ss">hello</span><span·class="w">·</span><span·class="ss">hello</span><span·class="w"> | 307 | </span><span·class="ss">hello</span><span·class="w">·</span><span·class="ss">hello</span><span·class="w"> |
| 308 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> | 308 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> |
| 309 | 30>·</span><span·class="nf">v</span><span·class="p"·data-group-id=" | 309 | 30>·</span><span·class="nf">v</span><span·class="p"·data-group-id="5997550164-3">(</span><span·class="mi">28</span><span·class="p"·data-group-id="5997550164-3">)</span><span·class="p">.</span><span·class="w"> |
| 310 | </span><span·class="ss">ok</span></code></pre><p>Commands·28,·29·and·30·use·the·history·facilities·of·the·shell.·Command·29 | 310 | </span><span·class="ss">ok</span></code></pre><p>Commands·28,·29·and·30·use·the·history·facilities·of·the·shell.·Command·29 |
| 311 | re-evaluates·command·28.·Command·30·uses·the·value·(result)·of·command·28.·In | 311 | re-evaluates·command·28.·Command·30·uses·the·value·(result)·of·command·28.·In |
| 312 | the·cases·of·a·pure·function·(a·function·with·no·side·effects),·the·result·is | 312 | the·cases·of·a·pure·function·(a·function·with·no·side·effects),·the·result·is |
| 313 | the·same.·For·a·function·with·side·effects,·the·result·can·be·different.</p><p>The·next·few·commands·show·some·record·manipulation.·It·is·assumed·that·<code·class="inline">ex.erl</code> | 313 | the·same.·For·a·function·with·side·effects,·the·result·can·be·different.</p><p>The·next·few·commands·show·some·record·manipulation.·It·is·assumed·that·<code·class="inline">ex.erl</code> |
| 314 | defines·a·record·as·follows:</p><p><code·class="inline">-record(rec,·{a,·b·=·val()}).</code></p><p><code·class="inline">val()·-></code><br/> <code·class="inline">3.</code></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">31>·</span><span·class="nf">c</span><span·class="p"·data-group-id=" | 314 | defines·a·record·as·follows:</p><p><code·class="inline">-record(rec,·{a,·b·=·val()}).</code></p><p><code·class="inline">val()·-></code><br/> <code·class="inline">3.</code></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">31>·</span><span·class="nf">c</span><span·class="p"·data-group-id="0776635047-1">(</span><span·class="ss">ex</span><span·class="p"·data-group-id="0776635047-1">)</span><span·class="p">.</span><span·class="w"> |
| 315 | </span><span·class="p"·data-group-id=" | 315 | </span><span·class="p"·data-group-id="0776635047-2">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="ss">ex</span><span·class="p"·data-group-id="0776635047-2">}</span><span·class="gp·unselectable"> |
| 316 | 32>·</span><span·class="nf">rr</span><span·class="p"·data-group-id=" | 316 | 32>·</span><span·class="nf">rr</span><span·class="p"·data-group-id="0776635047-3">(</span><span·class="ss">ex</span><span·class="p"·data-group-id="0776635047-3">)</span><span·class="p">.</span><span·class="w"> |
| 317 | </span><span·class="p"·data-group-id=" | 317 | </span><span·class="p"·data-group-id="0776635047-4">[</span><span·class="ss">rec</span><span·class="p"·data-group-id="0776635047-4">]</span></code></pre><p>Commands·31·and·32·compile·file·<code·class="inline">ex.erl</code>·and·read·the·record·definitions·in |
| 318 | <code·class="inline">ex.beam</code>.·If·the·compiler·did·not·output·any·record·definitions·on·the·BEAM | 318 | <code·class="inline">ex.beam</code>.·If·the·compiler·did·not·output·any·record·definitions·on·the·BEAM |
| 319 | file,·<code·class="inline">rr(ex)</code>·tries·to·read·record·definitions·from·the·source·file·instead.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">33>·</span><span·class="nf">rl</span><span·class="p"·data-group-id=" | 319 | file,·<code·class="inline">rr(ex)</code>·tries·to·read·record·definitions·from·the·source·file·instead.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">33>·</span><span·class="nf">rl</span><span·class="p"·data-group-id="6003677246-1">(</span><span·class="ss">rec</span><span·class="p"·data-group-id="6003677246-1">)</span><span·class="p">.</span><span·class="w"> |
| 320 | </span><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id=" | 320 | </span><span·class="p">-</span><span·class="na">record</span><span·class="p"·data-group-id="6003677246-2">(</span><span·class="ss">rec</span><span·class="p">,</span><span·class="p"·data-group-id="6003677246-3">{</span><span·class="ss">a</span><span·class="p">,</span><span·class="ss">b</span><span·class="w">·</span><span·class="o">=</span><span·cl[·...·truncated·by·diffoscope;·len:·243,·SHA:·0e84c2d0ccf473f3df87003eb01d77437e748c482ecd5987f35ea7c8dd56fe53·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 321 | </span><span·class="ss">ok</span></code></pre><p>Command·33·prints·the·definition·of·the·record·named·<code·class="inline">rec</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">34>·</span><span·class="o">#</span><span·class="ss">rec</span><span·class="p"·data-group-id=" | 321 | </span><span·class="ss">ok</span></code></pre><p>Command·33·prints·the·definition·of·the·record·named·<code·class="inline">rec</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">34>·</span><span·class="o">#</span><span·class="ss">rec</span><span·class="p"·data-group-id="4478885894-1">{</span><span·class="p"·data-group-id="4478885894-1">}</span><span·class="p">.</span><span·class="w"> |
| 322 | </span><span·class="gt">**·exception·error:·undefined·shell·command·val/0</span></code></pre><p>Command·34·tries·to·create·a·<code·class="inline">rec</code>·record,·but·fails·as·function·<code·class="inline">val/0</code>·is | 322 | </span><span·class="gt">**·exception·error:·undefined·shell·command·val/0</span></code></pre><p>Command·34·tries·to·create·a·<code·class="inline">rec</code>·record,·but·fails·as·function·<code·class="inline">val/0</code>·is |
| 323 | undefined.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">35>·</span><span·class="o">#</span><span·class="ss">rec</span><span·class="p"·data-group-id=" | 323 | undefined.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">35>·</span><span·class="o">#</span><span·class="ss">rec</span><span·class="p"·data-group-id="1849068924-1">{</span><span·class="ss">b</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">3</span><span·class="p"·data-group-id="1849068924-1">}</span><span·class="p">.</span><span·class="w"> |
| 324 | </span><span·class="o">#</span><span·class="ss">rec</span><span·class="p"·data-group-id=" | 324 | </span><span·class="o">#</span><span·class="ss">rec</span><span·class="p"·data-group-id="1849068924-2">{</span><span·class="ss">a</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">undefined</span><span·class="p">,</span><span·class="ss">b</span><span·class="w">·</span><span·class="o">=</span><span·c[·...·truncated·by·diffoscope;·len:·83,·SHA:·25c9e92a61d807b3d23efd4a63e73ad702762e58e7b0a8ec798cf09a9eb2ab2d·...·]-2">}</span></code></pre><p>Command·35·shows·the·workaround:·explicitly·assign·values·to·record·fields·that |
| 325 | cannot·otherwise·be·initialized.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">36>·</span><span·class="nf">rp</span><span·class="p"·data-group-id=" | 325 | cannot·otherwise·be·initialized.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">36>·</span><span·class="nf">rp</span><span·class="p"·data-group-id="6031840234-1">(</span><span·class="nf">v</span><span·class="p"·data-group-id="6031840234-2">(</span><span·class="o">-</span><span·class="mi">1</span><span·class="p"·data-group-id="6031840234-2">)</span><span·class="p"·data-group-id="6031840234-1">)</span><span·class="p">.</span><span·class="w"> |
| 326 | </span><span·class="o">#</span><span·class="ss">rec</span><span·class="p"·data-group-id=" | 326 | </span><span·class="o">#</span><span·class="ss">rec</span><span·class="p"·data-group-id="6031840234-3">{</span><span·class="ss">a</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">undefined</span><span·class="p">,</span><span·class="ss">b</span><span·class="w">·</span><span·class="o">=</span><span·c[·...·truncated·by·diffoscope;·len:·83,·SHA:·707d88a6a97e8235f0ca3fd775c771f6c5356aef46a5d2e7d6a7e1a1b967a31b·...·]-3">}</span><span·class="w"> |
| 327 | </span><span·class="ss">ok</span></code></pre><p>Command·36·prints·the·newly·created·record·using·record·definitions·maintained | 327 | </span><span·class="ss">ok</span></code></pre><p>Command·36·prints·the·newly·created·record·using·record·definitions·maintained |
| 328 | by·the·shell.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">37>·</span><span·class="nf">rd</span><span·class="p"·data-group-id=" | 328 | by·the·shell.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">37>·</span><span·class="nf">rd</span><span·class="p"·data-group-id="6951197297-1">(</span><span·class="ss">rec</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6951197297-2">{</span><span·class="ss">f</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·cla[·...·truncated·by·diffoscope;·len:·273,·SHA:·c659f36508fbf559aa54eef3784a33d701ed284c52bf1ea417e8cce0ab005f98·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 329 | </span><span·class="ss">rec</span></code></pre><p>Command·37·defines·a·record·directly·in·the·shell.·The·definition·replaces·the | 329 | </span><span·class="ss">rec</span></code></pre><p>Command·37·defines·a·record·directly·in·the·shell.·The·definition·replaces·the |
| 330 | one·read·from·file·<code·class="inline">ex.beam</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">38>·</span><span·class="o">#</span><span·class="ss">rec</span><span·class="p"·data-group-id=" | 330 | one·read·from·file·<code·class="inline">ex.beam</code>.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">38>·</span><span·class="o">#</span><span·class="ss">rec</span><span·class="p"·data-group-id="7926847931-1">{</span><span·class="p"·data-group-id="7926847931-1">}</span><span·class="p">.</span><span·class="w"> |
| 331 | </span><span·class="o">#</span><span·class="ss">rec</span><span·class="p"·data-group-id=" | 331 | </span><span·class="o">#</span><span·class="ss">rec</span><span·class="p"·data-group-id="7926847931-2">{</span><span·class="ss">f</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="7926847931-3">[</span><span·class="p"·data-group-id="7926847931-3">]</span><span·class="p"·data-group-id="[·...·truncated·by·diffoscope;·len:·10,·SHA:·5f44b095711c9dbc732fc4e1a3bf6d1f810957f717fda082db8f84070f262ee0·...·]-2">}</span><span·class="w"> |
| 332 | </span><span·class="ss">ok</span></code></pre><p>Command·38·creates·a·record·using·the·new·definition,·and·prints·the·result.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">39>·</span><span·class="nf">rd</span><span·class="p"·data-group-id=" | 332 | </span><span·class="ss">ok</span></code></pre><p>Command·38·creates·a·record·using·the·new·definition,·and·prints·the·result.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">39>·</span><span·class="nf">rd</span><span·class="p"·data-group-id="0668026318-1">(</span><span·class="ss">rec</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0668026318-2">{</span><span·class="ss">c</span><span·class="p"·data-group-id="0668026318-2">}</span><span·class="p"·data-group-i[·...·truncated·by·diffoscope;·len:·13,·SHA:·9c7a6bf85259738f29aad99700d46ac7583871fdbc2a0061f4e122778112bfc0·...·]-1">)</span><span·class="p">,</span><span·class="w">·</span><span·class="n">A</span><span·class="p">.</span><span·class="w"> |
| 333 | </span><span·class="gt">*·1:15:·variable·'A'·is·unbound</span><span·class="gp·unselectable"> | 333 | </span><span·class="gt">*·1:15:·variable·'A'·is·unbound</span><span·class="gp·unselectable"> |
| 334 | 40>·</span><span·class="o">#</span><span·class="ss">rec</span><span·class="p"·data-group-id=" | 334 | 40>·</span><span·class="o">#</span><span·class="ss">rec</span><span·class="p"·data-group-id="0668026318-3">{</span><span·class="p"·data-group-id="0668026318-3">}</span><span·class="p">.</span><span·class="w"> |
| 335 | </span><span·class="o">#</span><span·class="ss">rec</span><span·class="p"·data-group-id=" | 335 | </span><span·class="o">#</span><span·class="ss">rec</span><span·class="p"·data-group-id="0668026318-4">{</span><span·class="ss">c</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">undefined</span><span·class="p"·data-group-id="0668026318-4">}</span><span·class="w"> |
| 336 | </span><span·class="ss">ok</span></code></pre><p>Command·39·and·40·show·that·record·definitions·are·updated·as·side·effects.·The | 336 | </span><span·class="ss">ok</span></code></pre><p>Command·39·and·40·show·that·record·definitions·are·updated·as·side·effects.·The |
| 337 | evaluation·of·the·command·fails,·but·the·definition·of·<code·class="inline">rec</code>·has·been·carried | 337 | evaluation·of·the·command·fails,·but·the·definition·of·<code·class="inline">rec</code>·has·been·carried |
| 338 | out.</p><p>For·the·next·command,·it·is·assumed·that·<code·class="inline">test1:loop(N)</code>·is·defined·as·follows:</p><p><code·class="inline">loop(N)·-></code><br/> <code·class="inline">io:format("Hello·Number:·~w~n",·[N]),</code><br/> <code·class="inline">loop(N+1).</code></p><pre><code·class="text">41>·test1:loop(0). | 338 | out.</p><p>For·the·next·command,·it·is·assumed·that·<code·class="inline">test1:loop(N)</code>·is·defined·as·follows:</p><p><code·class="inline">loop(N)·-></code><br/> <code·class="inline">io:format("Hello·Number:·~w~n",·[N]),</code><br/> <code·class="inline">loop(N+1).</code></p><pre><code·class="text">41>·test1:loop(0). |
| 339 | Hello·Number:·0 | 339 | Hello·Number:·0 |
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| 125 | ····<small·class="app-vsn"·translate="no">(stdlib·v7.0)</small> | 125 | ····<small·class="app-vsn"·translate="no">(stdlib·v7.0)</small> |
| 126 | ··</h1> | 126 | ··</h1> |
| 127 | ····<section·id="moduledoc"> | 127 | ····<section·id="moduledoc"> |
| 128 | <p>Customizing·the·Erlang·environment.</p><p>The·functions·in·this·module·are·called·when·no·module·name·is·specified·in·a | 128 | <p>Customizing·the·Erlang·environment.</p><p>The·functions·in·this·module·are·called·when·no·module·name·is·specified·in·a |
| 129 | shell·command.</p><p>Consider·the·following·shell·dialog:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">reverse</span><span·class="p"·data-group-id=" | 129 | shell·command.</p><p>Consider·the·following·shell·dialog:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">reverse</span><span·class="p"·data-group-id="0113834136-1">(</span><span·class="s">"abc"</span><span·class="p"·data-group-id="0113834136-1">)</span><span·class="p">.</span><span·class="w"> |
| 130 | </span><span·class="s">"cba"</span><span·class="gp·unselectable"> | 130 | </span><span·class="s">"cba"</span><span·class="gp·unselectable"> |
| 131 | 2>·</span><span·class="nf">c</span><span·class="p"·data-group-id=" | 131 | 2>·</span><span·class="nf">c</span><span·class="p"·data-group-id="0113834136-2">(</span><span·class="ss">foo</span><span·class="p"·data-group-id="0113834136-2">)</span><span·class="p">.</span><span·class="w"> |
| 132 | </span><span·class="p"·data-group-id=" | 132 | </span><span·class="p"·data-group-id="0113834136-3">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">foo</span><span·class="p"·data-group-id="0113834136-3">}</span></code></pre><p>In·command·one,·module·<a·href="lists.html"><code·class="inline">lists</code></a>·is·called.·In·command·two,·no·module·name·is |
| 133 | specified.·The·shell·searches·module·<code·class="inline">user_default</code>·followed·by·module | 133 | specified.·The·shell·searches·module·<code·class="inline">user_default</code>·followed·by·module |
| 134 | <code·class="inline">shell_default</code>·for·function·<code·class="inline">c/1</code>.</p><p><code·class="inline">shell_default</code>·is·intended·for·"system·wide"·customizations·to·the·shell. | 134 | <code·class="inline">shell_default</code>·for·function·<code·class="inline">c/1</code>.</p><p><code·class="inline">shell_default</code>·is·intended·for·"system·wide"·customizations·to·the·shell. |
| 135 | <code·class="inline">user_default</code>·is·intended·for·"local"·or·individual·user·customizations.</p><h2·id="module-hint"·class="section-heading"> | 135 | <code·class="inline">user_default</code>·is·intended·for·"local"·or·individual·user·customizations.</p><h2·id="module-hint"·class="section-heading"> |
| 136 | ··<a·href="#module-hint"·class="hover-link"> | 136 | ··<a·href="#module-hint"·class="hover-link"> |
| 137 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 137 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 138 | ··</a> | 138 | ··</a> |
| 139 | ··<span·class="text">Hint</span> | 139 | ··<span·class="text">Hint</span> |
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| 231 | ······<p·class="built-using"> | 231 | ······<p·class="built-using"> |
| 232 | ········Built·using | 232 | ········Built·using |
| 233 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 233 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 234 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 234 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 235 | ······</p> | 235 | ······</p> |
| 236 | <p>Copyright·©·1996-202 | 236 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 237 | ····</footer> | 237 | ····</footer> |
| 238 | ··</div> | 238 | ··</div> |
| 239 | </main> | 239 | </main> |
| 240 | </div> | 240 | </div> |
| 241 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 241 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 242 | ··<script> | 242 | ··<script> |
| 243 | ··let·initialized·=·false; | 243 | ··let·initialized·=·false; |
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| 1244 | ······<p·class="built-using"> | 1244 | ······<p·class="built-using"> |
| 1245 | ········Built·using | 1245 | ········Built·using |
| 1246 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1246 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1247 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1247 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1248 | ······</p> | 1248 | ······</p> |
| 1249 | <p>Copyright·©·1996-202 | 1249 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1250 | ····</footer> | 1250 | ····</footer> |
| 1251 | ··</div> | 1251 | ··</div> |
| 1252 | </main> | 1252 | </main> |
| 1253 | </div> | 1253 | </div> |
| 1254 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1254 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1255 | ··<script> | 1255 | ··<script> |
| 1256 | ··let·initialized·=·false; | 1256 | ··let·initialized·=·false; |
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| 367 | ······</div> | 367 | ······</div> |
| 368 | <p>Starts·a·number·of·pseudo·servers.·A·pseudo·server·is·a·server·with·a·registered | 368 | <p>Starts·a·number·of·pseudo·servers.·A·pseudo·server·is·a·server·with·a·registered |
| 369 | name·that·does·nothing·but·pass·on·all·message·to·the·real·server·that·executes | 369 | name·that·does·nothing·but·pass·on·all·message·to·the·real·server·that·executes |
| 370 | at·a·master·node.·A·pseudo·server·is·an·intermediary·that·only·has·the·same | 370 | at·a·master·node.·A·pseudo·server·is·an·intermediary·that·only·has·the·same |
| 371 | registered·name·as·the·real·server.</p><p>For·example,·if·you·have·started·a·slave·node·<code·class="inline">N</code>·and·want·to·execute·<code·class="inline">pxw</code> | 371 | registered·name·as·the·real·server.</p><p>For·example,·if·you·have·started·a·slave·node·<code·class="inline">N</code>·and·want·to·execute·<code·class="inline">pxw</code> |
| 372 | graphics·code·on·this·node,·you·can·start·server·<code·class="inline">pxw_server</code>·as·a·pseudo·server | 372 | graphics·code·on·this·node,·you·can·start·server·<code·class="inline">pxw_server</code>·as·a·pseudo·server |
| 373 | at·the·slave·node.·This·is·illustrated·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">rpc</span><span·class="p">:</span><span·class="nf">call</span><span·class="p"·data-group-id=" | 373 | at·the·slave·node.·This·is·illustrated·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">rpc</span><span·class="p">:</span><span·class="nf">call</span><span·class="p"·data-group-id="5549171734-1">(</span><span·class="n">N</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">slave</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">pseudo</span><span·class="p">,</span><span·class="w">·</span><span·c[·...·truncated·by·diffoscope;·len:·461,·SHA:·33ec0d7f83cf7526a5d62672b7acb98f9b61deadecdd785d12f78bbe4f1b289c·...·]4-1">)</span><span·class="p">.</span></code></pre> |
| 374 | ··</section> | 374 | ··</section> |
| 375 | </section> | 375 | </section> |
| 376 | <section·class="detail"·id="relay/1"> | 376 | <section·class="detail"·id="relay/1"> |
| 377 | ··<div·class="detail-header"> | 377 | ··<div·class="detail-header"> |
| 378 | ····<a·href="#relay/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 378 | ····<a·href="#relay/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 379 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 379 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
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| 513 | as·fully·qualified·names;·short·names·can·also·be·used.·This·is·the·same | 513 | as·fully·qualified·names;·short·names·can·also·be·used.·This·is·the·same |
| 514 | condition·that·applies·to·names·of·distributed·Erlang·nodes.</p><p>The·name·of·the·started·node·becomes·<code·class="inline">Name@Host</code>.</p><p>The·slave·node·resets·its·<a·href="io.html#t:user/0"><code·class="inline">io:user/0</code></a>·process·so·that·all·terminal·I/O·that·is | 514 | condition·that·applies·to·names·of·distributed·Erlang·nodes.</p><p>The·name·of·the·started·node·becomes·<code·class="inline">Name@Host</code>.</p><p>The·slave·node·resets·its·<a·href="io.html#t:user/0"><code·class="inline">io:user/0</code></a>·process·so·that·all·terminal·I/O·that·is |
| 515 | produced·at·the·slave·is·automatically·relayed·to·the·master.·Also,·the·file | 515 | produced·at·the·slave·is·automatically·relayed·to·the·master.·Also,·the·file |
| 516 | server·is·relayed·to·the·master.</p><p>Argument·<code·class="inline">Args</code>·is·used·to·set·<code·class="inline">erl</code>·command-line·arguments.·It·is | 516 | server·is·relayed·to·the·master.</p><p>Argument·<code·class="inline">Args</code>·is·used·to·set·<code·class="inline">erl</code>·command-line·arguments.·It·is |
| 517 | passed·to·the·new·node·and·can·be·used·for·a·variety·of·purposes;·see | 517 | passed·to·the·new·node·and·can·be·used·for·a·variety·of·purposes;·see |
| 518 | <a·href="../../../../erts-16.0/doc/html/erl_cmd.html"><code·class="inline">erl(1)</code></a>.</p><p>As·an·example,·suppose·that·you·want·to·start·a·slave·node·at·host·<code·class="inline">H</code>·with·node | 518 | <a·href="../../../../erts-16.0/doc/html/erl_cmd.html"><code·class="inline">erl(1)</code></a>.</p><p>As·an·example,·suppose·that·you·want·to·start·a·slave·node·at·host·<code·class="inline">H</code>·with·node |
| 519 | name·<code·class="inline">Name@H</code>·and·want·the·slave·node·to·have·the·following·properties:</p><ul><li>Directory·<code·class="inline">Dir</code>·is·to·be·added·to·the·code·path.</li><li>The·Mnesia·directory·is·to·be·set·to·<code·class="inline">M</code>.</li><li>The·Unix·<code·class="inline">DISPLAY</code>·environment·variable·is·to·be·set·to·the·display·of·the | 519 | name·<code·class="inline">Name@H</code>·and·want·the·slave·node·to·have·the·following·properties:</p><ul><li>Directory·<code·class="inline">Dir</code>·is·to·be·added·to·the·code·path.</li><li>The·Mnesia·directory·is·to·be·set·to·<code·class="inline">M</code>.</li><li>The·Unix·<code·class="inline">DISPLAY</code>·environment·variable·is·to·be·set·to·the·display·of·the |
| 520 | master·node.</li></ul><p>The·following·code·is·executed·to·achieve·this:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">E</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"·-env·DISPLAY·"</span><span·class="w">·</span><span·class="o">++</span><span·class="w">·</span><span·class="nc">net_adm</span><span·class="p">:</span><span·class="nf">localhost</span><span·class="p"·data-group-id=" | 520 | master·node.</li></ul><p>The·following·code·is·executed·to·achieve·this:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">E</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"·-env·DISPLAY·"</span><span·class="w">·</span><span·class="o">++</span><span·class="w">·</span><span·class="nc">net_adm</span><span·class="p">:</span><span·class="nf">localhost</span><span·class="p"·data-group-id="1243842557-1">(</span><span·class="p"·data-group-id="1243842557-1">)</span><span·class="w">·</span><span·class="o">++</span><span·class="w">·</span><span·class="s">":0·"</span><span·class="p">,</span><span·class="w"> |
| 521 | </span><span·class="n">Arg</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"-mnesia_dir·"</span><span·class="w">·</span><span·class="o">++</span><span·class="w">·</span><span·class="n">M</span><span·class="w">·</span><span·class="o">++</span><span·class="w">·</span><span·class="s">"·-pa·"</span><span·class="w">·</span><span·class="o">++</span><span·class="w">·</span><span·class="n">Dir</span><span·class="w">·</span><span·class="o">++</span><span·class="w">·</span><span·class="n">E</span><span·class="p">,</span><span·class="w"> | 521 | </span><span·class="n">Arg</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"-mnesia_dir·"</span><span·class="w">·</span><span·class="o">++</span><span·class="w">·</span><span·class="n">M</span><span·class="w">·</span><span·class="o">++</span><span·class="w">·</span><span·class="s">"·-pa·"</span><span·class="w">·</span><span·class="o">++</span><span·class="w">·</span><span·class="n">Dir</span><span·class="w">·</span><span·class="o">++</span><span·class="w">·</span><span·class="n">E</span><span·class="p">,</span><span·class="w"> |
| 522 | </span><span·class="nc">slave</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id=" | 522 | </span><span·class="nc">slave</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id="1243842557-2">(</span><span·class="n">H</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Name</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Arg</span><span·class="p"·data-group-id="1243842557-2">)</span><span·class="p">.</span></code></pre><p>The·function·returns·<code·class="inline">{ok,·Node}</code>,·where·<code·class="inline">Node</code>·is·the·name·of·the·new·node, |
| 523 | otherwise·<code·class="inline">{error,·Reason}</code>,·where·<code·class="inline">Reason</code>·can·be·one·of:</p><ul><li><p><strong><code·class="inline">timeout</code></strong>·-·The·master·node·failed·to·get·in·contact·with·the·slave·node. | 523 | otherwise·<code·class="inline">{error,·Reason}</code>,·where·<code·class="inline">Reason</code>·can·be·one·of:</p><ul><li><p><strong><code·class="inline">timeout</code></strong>·-·The·master·node·failed·to·get·in·contact·with·the·slave·node. |
| 524 | This·can·occur·in·a·number·of·circumstances:</p><ul><li>Erlang/OTP·is·not·installed·on·the·remote·host.</li><li>The·file·system·on·the·other·host·has·a·different·structure·to·the·the | 524 | This·can·occur·in·a·number·of·circumstances:</p><ul><li>Erlang/OTP·is·not·installed·on·the·remote·host.</li><li>The·file·system·on·the·other·host·has·a·different·structure·to·the·the |
| 525 | master.</li><li>The·Erlang·nodes·have·different·cookies.</li></ul></li><li><p><strong><code·class="inline">no_rsh</code></strong>·-·No·remote·shell·program·was·found·on·the·computer.·Note·that | 525 | master.</li><li>The·Erlang·nodes·have·different·cookies.</li></ul></li><li><p><strong><code·class="inline">no_rsh</code></strong>·-·No·remote·shell·program·was·found·on·the·computer.·Note·that |
| 526 | <code·class="inline">ssh</code>·is·used·by·default,·but·this·can·be·overridden·with·the·<code·class="inline">-rsh</code>·flag.</p></li><li><p><strong><code·class="inline">{already_running,·Node}</code></strong>·-·A·node·with·name·<code·class="inline">Name@Host</code>·already·exists.</p></li></ul> | 526 | <code·class="inline">ssh</code>·is·used·by·default,·but·this·can·be·overridden·with·the·<code·class="inline">-rsh</code>·flag.</p></li><li><p><strong><code·class="inline">{already_running,·Node}</code></strong>·-·A·node·with·name·<code·class="inline">Name@Host</code>·already·exists.</p></li></ul> |
| 527 | ··</section> | 527 | ··</section> |
| 528 | </section> | 528 | </section> |
| 529 | <section·class="detail"·id="start_link/1"> | 529 | <section·class="detail"·id="start_link/1"> |
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| 686 | ······<p·class="built-using"> | 686 | ······<p·class="built-using"> |
| 687 | ········Built·using | 687 | ········Built·using |
| 688 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 688 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 689 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 689 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 690 | ······</p> | 690 | ······</p> |
| 691 | <p>Copyright·©·1996-202 | 691 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 692 | ····</footer> | 692 | ····</footer> |
| 693 | ··</div> | 693 | ··</div> |
| 694 | </main> | 694 | </main> |
| 695 | </div> | 695 | </div> |
| 696 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 696 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 697 | ··<script> | 697 | ··<script> |
| 698 | ··let·initialized·=·false; | 698 | ··let·initialized·=·false; |
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| 158 | string·and·returns·a·formatted·expressions·as·a·string.·See | 158 | string·and·returns·a·formatted·expressions·as·a·string.·See |
| 159 | <a·href="shell.html#format_shell_func/1"><code·class="inline">shell:format_shell_func/1</code></a>·for·how·to·set·it·from·inside·the·shell.</p><p>If·instead·a·string·is·provided,·it·will·be·used·as·a·shell·command.·Your | 159 | <a·href="shell.html#format_shell_func/1"><code·class="inline">shell:format_shell_func/1</code></a>·for·how·to·set·it·from·inside·the·shell.</p><p>If·instead·a·string·is·provided,·it·will·be·used·as·a·shell·command.·Your |
| 160 | command·must·include·<code·class="inline">${file}</code>·somewhere·in·the·string,·for·the·shell·to·know | 160 | command·must·include·<code·class="inline">${file}</code>·somewhere·in·the·string,·for·the·shell·to·know |
| 161 | where·the·file·goes·in·the·command.</p><pre><code·class="text">-stdlib·format_shell_func·"\"emacs·-batch·\${file}·-l·~/erlang-format/emacs-format-file·-f·emacs-format-function\""</code></pre><pre><code·class="text">-stdlib·format_shell_func·"{shell,·erl_pp_format_func}"</code></pre></li><li><p><strong><code·class="inline"·id="shell_prompt_func">shell_prompt_func·=·{Mod,·Func}·|·default</code></strong>·-·where</p><ul><li><code·class="inline">Mod·=·atom()</code></li><li><code·class="inline">Func·=·atom()</code></li></ul><p>Can·be·used·to·set·a·customized·Erlang·shell·prompt·function.</p></li><li><p><strong><code·class="inline"·id="shell_multiline_prompt">shell_multiline_prompt·=·{Mod,·Func}·|·string()·|·default</code></strong>·-·where</p><ul><li><code·class="inline">Mod·=·atom()</code></li><li><code·class="inline">Func·=·atom()</code></li></ul><p>Can·be·used·to·set·a·customized·multiline·shell·prompt·function.·The·multiline | 161 | where·the·file·goes·in·the·command.</p><pre><code·class="text">-stdlib·format_shell_func·"\"emacs·-batch·\${file}·-l·~/erlang-format/emacs-format-file·-f·emacs-format-function\""</code></pre><pre><code·class="text">-stdlib·format_shell_func·"{shell,·erl_pp_format_func}"</code></pre></li><li><p><strong><code·class="inline"·id="shell_prompt_func">shell_prompt_func·=·{Mod,·Func}·|·default</code></strong>·-·where</p><ul><li><code·class="inline">Mod·=·atom()</code></li><li><code·class="inline">Func·=·atom()</code></li></ul><p>Can·be·used·to·set·a·customized·Erlang·shell·prompt·function.</p></li><li><p><strong><code·class="inline"·id="shell_multiline_prompt">shell_multiline_prompt·=·{Mod,·Func}·|·string()·|·default</code></strong>·-·where</p><ul><li><code·class="inline">Mod·=·atom()</code></li><li><code·class="inline">Func·=·atom()</code></li></ul><p>Can·be·used·to·set·a·customized·multiline·shell·prompt·function.·The·multiline |
| 162 | prompt·function·takes·the·main·prompt·as·its·only·parameter.</p></li><li><p><strong><code·class="inline"·id="shell_saved_results">shell_saved_results·=·integer()·>=·0</code></strong>·-·Can·be | 162 | prompt·function·takes·the·main·prompt·as·its·only·parameter.</p></li><li><p><strong><code·class="inline"·id="shell_saved_results">shell_saved_results·=·integer()·>=·0</code></strong>·-·Can·be |
| 163 | used·to·determine·how·many·results·are·saved·by·the·Erlang·shell.</p></li><li><p><strong><code·class="inline"·id="shell_session_slogan">shell_session_slogan·=·string()·|·fun()·->·string())</code></strong>·-·The·slogan·printed·when·starting·an·Erlang·shell. | 163 | used·to·determine·how·many·results·are·saved·by·the·Erlang·shell.</p></li><li><p><strong><code·class="inline"·id="shell_session_slogan">shell_session_slogan·=·string()·|·fun()·->·string())</code></strong>·-·The·slogan·printed·when·starting·an·Erlang·shell. |
| 164 | Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="sc">$·</span><span·class="ss">erl</span><span·class="w">·</span><span·class="o">-</span><span·class="ss">stdlib</span><span·class="w">·</span><span·class="ss">shell_session_slogan</span><span·class="w">·</span><span·class="ss">'"Test·slogan"'</span><span·class="w"> | 164 | Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="sc">$·</span><span·class="ss">erl</span><span·class="w">·</span><span·class="o">-</span><span·class="ss">stdlib</span><span·class="w">·</span><span·class="ss">shell_session_slogan</span><span·class="w">·</span><span·class="ss">'"Test·slogan"'</span><span·class="w"> |
| 165 | </span><span·class="n">Erlang</span><span·class="o">/</span><span·class="n">OTP</span><span·class="w">·</span><span·class="mi">26</span><span·class="w">·</span><span·class="p"·data-group-id=" | 165 | </span><span·class="n">Erlang</span><span·class="o">/</span><span·class="n">OTP</span><span·class="w">·</span><span·class="mi">26</span><span·class="w">·</span><span·class="p"·data-group-id="4922079217-1">[</span><span·class="n">DEVELOPMENT</span><span·class="p"·data-group-id="4922079217-1">]</span><span·class="w">·</span><span·class="p"·data-group-id="4922079217-2">[</span><span·class="ss">erts</span><span·class="o">-</span><span·class="mf">1[·...·truncated·by·diffoscope;·len:·1495,·SHA:·ad84a3ebabd4114bb52f91c5013229e0c55c492ba5bd8d59a39cbb95625a11e8·...·]7-8">]</span><span·class="w"> |
| 166 | </span><span·class="n">Test</span><span·class="w">·</span><span·class="ss">slogan</span><span·class="w"> | 166 | </span><span·class="n">Test</span><span·class="w">·</span><span·class="ss">slogan</span><span·class="w"> |
| 167 | </span><span·class="mi">1</span><span·class="o">></span></code></pre></li><li><p><strong><code·class="inline"·id="shell_slogan">shell_slogan·=·string()·|·fun(()·->·string())</code></strong>·-·The | 167 | </span><span·class="mi">1</span><span·class="o">></span></code></pre></li><li><p><strong><code·class="inline"·id="shell_slogan">shell_slogan·=·string()·|·fun(()·->·string())</code></strong>·-·The |
| 168 | slogan·printed·when·starting·the·Erlang·shell·subsystem.·Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="sc">$·</span><span·class="ss">erl</span><span·class="w">·</span><span·class="o">-</span><span·class="ss">stdlib</span><span·class="w">·</span><span·class="ss">shell_slogan</span><span·class="w">·</span><span·class="ss">'"Test·slogan"'</span><span·class="w"> | 168 | slogan·printed·when·starting·the·Erlang·shell·subsystem.·Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="sc">$·</span><span·class="ss">erl</span><span·class="w">·</span><span·class="o">-</span><span·class="ss">stdlib</span><span·class="w">·</span><span·class="ss">shell_slogan</span><span·class="w">·</span><span·class="ss">'"Test·slogan"'</span><span·class="w"> |
| 169 | </span><span·class="n">Test</span><span·class="w">·</span><span·class="ss">slogan</span><span·class="w"> | 169 | </span><span·class="n">Test</span><span·class="w">·</span><span·class="ss">slogan</span><span·class="w"> |
| 170 | </span><span·class="n">Eshell</span><span·class="w">·</span><span·class="n">V13</span><span·class="p">.</span><span·class="mf">0.2</span><span·class="w">··</span><span·class="p"·data-group-id=" | 170 | </span><span·class="n">Eshell</span><span·class="w">·</span><span·class="n">V13</span><span·class="p">.</span><span·class="mf">0.2</span><span·class="w">··</span><span·class="p"·data-group-id="2430557792-1">(</span><span·class="ss">abort</span><span·class="w">·</span><span·class="ss">with</span><span·class="w">·</span><span·class="err">^</span><span·class="n">G</span><span·class="p"·data-group-id="2430557792-1">)</span><span·class="w"> |
| 171 | </span><span·class="mi">1</span><span·class="o">></span></code></pre><p>The·default·is·the·return·value·of | 171 | </span><span·class="mi">1</span><span·class="o">></span></code></pre><p>The·default·is·the·return·value·of |
| 172 | <a·href="../../../../erts-16.0/doc/html/erlang.html#system_info_system_version"><code·class="inline">erlang:system_info(system_version)</code></a>.</p></li><li><p><strong><code·class="inline"·id="shell_strings">shell_strings·=·boolean()</code></strong>·-·Can·be·used·to·determine | 172 | <a·href="../../../../erts-16.0/doc/html/erlang.html#system_info_system_version"><code·class="inline">erlang:system_info(system_version)</code></a>.</p></li><li><p><strong><code·class="inline"·id="shell_strings">shell_strings·=·boolean()</code></strong>·-·Can·be·used·to·determine |
| 173 | how·the·Erlang·shell·outputs·lists·of·integers.</p></li></ul><h2·id="see-also"·class="section-heading"> | 173 | how·the·Erlang·shell·outputs·lists·of·integers.</p></li></ul><h2·id="see-also"·class="section-heading"> |
| 174 | ··<a·href="#see-also"·class="hover-link"> | 174 | ··<a·href="#see-also"·class="hover-link"> |
| 175 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 175 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 176 | ··</a> | 176 | ··</a> |
| 177 | ··<span·class="text">See·Also</span> | 177 | ··<span·class="text">See·Also</span> |
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| 224 | ······<p·class="built-using"> | 224 | ······<p·class="built-using"> |
| 225 | ········Built·using | 225 | ········Built·using |
| 226 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 226 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 227 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 227 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 228 | ······</p> | 228 | ······</p> |
| 229 | <p>Copyright·©·1996-202 | 229 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 230 | ····</footer> | 230 | ····</footer> |
| 231 | ··</div> | 231 | ··</div> |
| 232 | </main> | 232 | </main> |
| 233 | </div> | 233 | </div> |
| 234 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 234 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 235 | ··<script> | 235 | ··<script> |
| 236 | ··let·initialized·=·false; | 236 | ··let·initialized·=·false; |
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| 145 | <a·href="#replace/3"><code·class="inline">replace/3</code></a>,·<a·href="#split/2"><code·class="inline">split/2</code></a>,·<a·href="#split/3"><code·class="inline">split/3</code></a>·and·<a·href="#trim/3"><code·class="inline">trim/3</code></a>.</p><p>Splitting·and·appending·strings·is·to·be·done·on·grapheme·clusters·borders. | 145 | <a·href="#replace/3"><code·class="inline">replace/3</code></a>,·<a·href="#split/2"><code·class="inline">split/2</code></a>,·<a·href="#split/3"><code·class="inline">split/3</code></a>·and·<a·href="#trim/3"><code·class="inline">trim/3</code></a>.</p><p>Splitting·and·appending·strings·is·to·be·done·on·grapheme·clusters·borders. |
| 146 | There·is·no·verification·that·the·results·of·appending·strings·are·valid·or | 146 | There·is·no·verification·that·the·results·of·appending·strings·are·valid·or |
| 147 | normalized.</p><p>Most·of·the·functions·expect·all·input·to·be·normalized·to·one·form,·see·for | 147 | normalized.</p><p>Most·of·the·functions·expect·all·input·to·be·normalized·to·one·form,·see·for |
| 148 | example·<a·href="unicode.html#characters_to_nfc_list/1"><code·class="inline">unicode:characters_to_nfc_list/1</code></a>.</p><p>Language·or·locale·specific·handling·of·input·is·not·considered·in·any·function.</p><p>The·functions·can·crash·for·non-valid·input·strings.·For·example,·the·functions | 148 | example·<a·href="unicode.html#characters_to_nfc_list/1"><code·class="inline">unicode:characters_to_nfc_list/1</code></a>.</p><p>Language·or·locale·specific·handling·of·input·is·not·considered·in·any·function.</p><p>The·functions·can·crash·for·non-valid·input·strings.·For·example,·the·functions |
| 149 | expect·UTF-8·binaries·but·not·all·functions·verify·that·all·binaries·are·encoded | 149 | expect·UTF-8·binaries·but·not·all·functions·verify·that·all·binaries·are·encoded |
| 150 | correctly.</p><p>Unless·otherwise·specified·the·return·value·type·is·the·same·as·the·input·type. | 150 | correctly.</p><p>Unless·otherwise·specified·the·return·value·type·is·the·same·as·the·input·type. |
| 151 | That·is,·binary·input·returns·binary·output,·list·input·returns·a·list·output, | 151 | That·is,·binary·input·returns·binary·output,·list·input·returns·a·list·output, |
| 152 | and·mixed·input·can·return·a·mixed·output.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">string</span><span·class="p">:</span><span·class="nf">trim</span><span·class="p"·data-group-id=" | 152 | and·mixed·input·can·return·a·mixed·output.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">string</span><span·class="p">:</span><span·class="nf">trim</span><span·class="p"·data-group-id="8493395589-1">(</span><span·class="s">"··sarah··"</span><span·class="p"·data-group-id="8493395589-1">)</span><span·class="p">.</span><span·class="w"> |
| 153 | </span><span·class="s">"sarah"</span><span·class="gp·unselectable"> | 153 | </span><span·class="s">"sarah"</span><span·class="gp·unselectable"> |
| 154 | 2>·</span><span·class="nc">string</span><span·class="p">:</span><span·class="nf">trim</span><span·class="p"·data-group-id=" | 154 | 2>·</span><span·class="nc">string</span><span·class="p">:</span><span·class="nf">trim</span><span·class="p"·data-group-id="8493395589-2">(</span><span·class="p"·data-group-id="8493395589-3"><<</span><span·class="s">"··sarah··"</span><span·class="p"·data-group-id="8493395589-3">>></span><span·class="p"·data-group-id="8493395589-2">)</span><span·class="p">.</span><span·class="w"> |
| 155 | </span><span·class="p"·data-group-id=" | 155 | </span><span·class="p"·data-group-id="8493395589-4"><<</span><span·class="s">"sarah"</span><span·class="p"·data-group-id="8493395589-4">>></span><span·class="gp·unselectable"> |
| 156 | 3>·</span><span·class="nc">string</span><span·class="p">:</span><span·class="nf">lexemes</span><span·class="p"·data-group-id=" | 156 | 3>·</span><span·class="nc">string</span><span·class="p">:</span><span·class="nf">lexemes</span><span·class="p"·data-group-id="8493395589-5">(</span><span·class="s">"foo·bar"</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"·"</span><span·class="p"·data-group-id="8493395589-5">)</span><span·class="p">.</span><span·class="w"> |
| 157 | </span><span·class="p"·data-group-id=" | 157 | </span><span·class="p"·data-group-id="8493395589-6">[</span><span·class="s">"foo"</span><span·class="p">,</span><span·class="s">"bar"</span><span·class="p"·data-group-id="8493395589-6">]</span><span·class="gp·unselectable"> |
| 158 | 4>·</span><span·class="nc">string</span><span·class="p">:</span><span·class="nf">lexemes</span><span·class="p"·data-group-id=" | 158 | 4>·</span><span·class="nc">string</span><span·class="p">:</span><span·class="nf">lexemes</span><span·class="p"·data-group-id="8493395589-7">(</span><span·class="p"·data-group-id="8493395589-8"><<</span><span·class="s">"foo·bar"</span><span·class="p"·data-group-id="8493395589-8">>></span><span·class="p">,</span><span·class="w">·</span><span·class="s">"·&[·...·truncated·by·diffoscope;·len:·53,·SHA:·fe3eacf7bc931473902cce923f69f08fcf7e84e66c60a6ce1360fa9eae12d524·...·]-7">)</span><span·class="p">.</span><span·class="w"> |
| 159 | </span><span·class="p"·data-group-id=" | 159 | </span><span·class="p"·data-group-id="8493395589-9">[</span><span·class="p"·data-group-id="8493395589-10"><<</span><span·class="s">"foo"</span><span·class="p"·data-group-id="8493395589-10">>></span><span·class="p">,</span><span·class="p"·data-group-id="8493395589-11"><[·...·truncated·by·diffoscope;·len:·151,·SHA:·20f3703a5be0c4078a1d5b8086b7d1f97698421f32f0887f92d1bf17577b957d·...·]-9">]</span></code></pre><p>This·module·has·been·reworked·in·Erlang/OTP·20·to·handle·<a·href="unicode.html#t:chardata/0"><code·class="inline">unicode:chardata/0</code></a> |
| 160 | and·operate·on·grapheme·clusters.·The | 160 | and·operate·on·grapheme·clusters.·The |
| 161 | <a·href="string.html#obsolete-api-functions"><code·class="inline">old·functions</code></a>·that·only·work·on·Latin-1 | 161 | <a·href="string.html#obsolete-api-functions"><code·class="inline">old·functions</code></a>·that·only·work·on·Latin-1 |
| 162 | lists·as·input·are·still·available·but·should·not·be·used,·they·will·be | 162 | lists·as·input·are·still·available·but·should·not·be·used,·they·will·be |
| 163 | deprecated·in·a·future·release.</p><h2·id="module-notes"·class="section-heading"> | 163 | deprecated·in·a·future·release.</p><h2·id="module-notes"·class="section-heading"> |
| 164 | ··<a·href="#module-notes"·class="hover-link"> | 164 | ··<a·href="#module-notes"·class="hover-link"> |
| 165 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 165 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 166 | ··</a> | 166 | ··</a> |
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| 1062 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·casefold(String·::·<a·href="unicode.html#t:chardata/0">unicode:chardata</a>())·->·<a·href="unicode.html#t:chardata/0">unicode:chardata</a>().</pre> | 1062 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·casefold(String·::·<a·href="unicode.html#t:chardata/0">unicode:chardata</a>())·->·<a·href="unicode.html#t:chardata/0">unicode:chardata</a>().</pre> |
| 1063 | ······</div> | 1063 | ······</div> |
| 1064 | <p>Converts·<code·class="inline">String</code>·to·a·case-agnostic·comparable·string.·Function | 1064 | <p>Converts·<code·class="inline">String</code>·to·a·case-agnostic·comparable·string.·Function |
| 1065 | <a·href="#casefold/1"><code·class="inline">casefold/1</code></a>·is·preferred·over·<a·href="#lowercase/1"><code·class="inline">lowercase/1</code></a> | 1065 | <a·href="#casefold/1"><code·class="inline">casefold/1</code></a>·is·preferred·over·<a·href="#lowercase/1"><code·class="inline">lowercase/1</code></a> |
| 1066 | when·two·strings·are·to·be·compared·for·equality.·See·also·<a·href="#equal/4"><code·class="inline">equal/4</code></a>.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">string</span><span·class="p">:</span><span·class="nf">casefold</span><span·class="p"·data-group-id="0 | 1066 | when·two·strings·are·to·be·compared·for·equality.·See·also·<a·href="#equal/4"><code·class="inline">equal/4</code></a>.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">string</span><span·class="p">:</span><span·class="nf">casefold</span><span·class="p"·data-group-id="0824009168-1">(</span><span·class="s">"Ω·and·ẞ·SHARP·S"</span><span·class="p"·data-group-id="0824009168-1">)</span><span·class="p">.</span><span·class="w"> |
| 1067 | </span><span·class="s">"ω·and·ss·sharp·s"</span></code></pre> | 1067 | </span><span·class="s">"ω·and·ss·sharp·s"</span></code></pre> |
| 1068 | ··</section> | 1068 | ··</section> |
| 1069 | </section> | 1069 | </section> |
| 1070 | <section·class="detail"·id="chomp/1"> | 1070 | <section·class="detail"·id="chomp/1"> |
| 1071 | ··<div·class="detail-header"> | 1071 | ··<div·class="detail-header"> |
| 1072 | ····<a·href="#chomp/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 1072 | ····<a·href="#chomp/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| Offset 1092, 17 lines modified | Offset 1092, 17 lines modified | ||
| 1092 | ······<div·class="specs"> | 1092 | ······<div·class="specs"> |
| 1093 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·chomp(String·::·<a·href="unicode.html#t:chardata/0">unicode:chardata</a>())·->·<a·href="unicode.html#t:chardata/0">unicode:chardata</a>().</pre> | 1093 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·chomp(String·::·<a·href="unicode.html#t:chardata/0">unicode:chardata</a>())·->·<a·href="unicode.html#t:chardata/0">unicode:chardata</a>().</pre> |
| 1094 | ······</div> | 1094 | ······</div> |
| 1095 | <p>Returns·a·string·where·any·trailing·<code·class="inline">\n</code>·or·<code·class="inline">\r\n</code>·have·been·removed·from | 1095 | <p>Returns·a·string·where·any·trailing·<code·class="inline">\n</code>·or·<code·class="inline">\r\n</code>·have·been·removed·from |
| 1096 | <code·class="inline">String</code>.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">182>·</span><span·class="nc">string</span><span·class="p">:</span><span·class="nf">chomp</span><span·class="p"·data-group-id=" | 1096 | <code·class="inline">String</code>.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">182>·</span><span·class="nc">string</span><span·class="p">:</span><span·class="nf">chomp</span><span·class="p"·data-group-id="5254054167-1">(</span><span·class="p"·data-group-id="5254054167-2"><<</span><span·class="s">"\nHello\n\n"</span><span·class="p"·data-group-id="5254054167-2">>></span><span·class="p"·data-group-id="5254054167-1">)</span><span·class="p">.</span><span·class="w"> |
| 1097 | </span><span·class="p"·data-group-id=" | 1097 | </span><span·class="p"·data-group-id="5254054167-3"><<</span><span·class="s">"\nHello"</span><span·class="p"·data-group-id="5254054167-3">>></span><span·class="gp·unselectable"> |
| 1098 | 183>·</span><span·class="nc">string</span><span·class="p">:</span><span·class="nf">chomp</span><span·class="p"·data-group-id=" | 1098 | 183>·</span><span·class="nc">string</span><span·class="p">:</span><span·class="nf">chomp</span><span·class="p"·data-group-id="5254054167-4">(</span><span·class="s">"\nHello\r\r\n"</span><span·class="p"·data-group-id="5254054167-4">)</span><span·class="p">.</span><span·class="w"> |
| 1099 | </span><span·class="s">"\nHello\r"</span></code></pre> | 1099 | </span><span·class="s">"\nHello\r"</span></code></pre> |
| 1100 | ··</section> | 1100 | ··</section> |
| 1101 | </section> | 1101 | </section> |
| 1102 | <section·class="detail"·id="equal/2"> | 1102 | <section·class="detail"·id="equal/2"> |
| 1103 | ··<div·class="detail-header"> | 1103 | ··<div·class="detail-header"> |
| 1104 | ····<a·href="#equal/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 1104 | ····<a·href="#equal/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| Offset 1189, 19 lines modified | Offset 1189, 19 lines modified | ||
| 1189 | <p>Returns·<code·class="inline">true</code>·if·<code·class="inline">A</code>·and·<code·class="inline">B</code>·are·equal,·otherwise·<code·class="inline">false</code>.</p><p>If·<code·class="inline">IgnoreCase</code>·is·<code·class="inline">true</code>·the·function·does·<a·href="#casefold/1"><code·class="inline">casefold</code>ing</a>·on·the | 1189 | <p>Returns·<code·class="inline">true</code>·if·<code·class="inline">A</code>·and·<code·class="inline">B</code>·are·equal,·otherwise·<code·class="inline">false</code>.</p><p>If·<code·class="inline">IgnoreCase</code>·is·<code·class="inline">true</code>·the·function·does·<a·href="#casefold/1"><code·class="inline">casefold</code>ing</a>·on·the |
| 1190 | fly·before·the·equality·test.</p><p>If·<code·class="inline">Norm</code>·is·not·<code·class="inline">none</code>·the·function·applies·normalization·on·the·fly·before·the | 1190 | fly·before·the·equality·test.</p><p>If·<code·class="inline">Norm</code>·is·not·<code·class="inline">none</code>·the·function·applies·normalization·on·the·fly·before·the |
| 1191 | equality·test.·There·are·four·available·normalization·forms: | 1191 | equality·test.·There·are·four·available·normalization·forms: |
| 1192 | <a·href="unicode.html#characters_to_nfc_list/1"><code·class="inline">nfc</code></a>, | 1192 | <a·href="unicode.html#characters_to_nfc_list/1"><code·class="inline">nfc</code></a>, |
| 1193 | <a·href="unicode.html#characters_to_nfd_list/1"><code·class="inline">nfd</code></a>, | 1193 | <a·href="unicode.html#characters_to_nfd_list/1"><code·class="inline">nfd</code></a>, |
| 1194 | <a·href="unicode.html#characters_to_nfkc_list/1"><code·class="inline">nfkc</code></a>,·and | 1194 | <a·href="unicode.html#characters_to_nfkc_list/1"><code·class="inline">nfkc</code></a>,·and |
| 1195 | <a·href="unicode.html#characters_to_nfkd_list/1"><code·class="inline">nfkd</code></a>.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">string</span><span·class="p">:</span><span·class="nf">equal</span><span·class="p"·data-group-id=" | 1195 | <a·href="unicode.html#characters_to_nfkd_list/1"><code·class="inline">nfkd</code></a>.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">string</span><span·class="p">:</span><span·class="nf">equal</span><span·class="p"·data-group-id="2157437220-1">(</span><span·class="s">"åäö"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2157437220-2"><<</span><span·class="s">"åäö"</span><span·class="o">/</span><span·class="ss">utf8</spa[·...·truncated·by·diffoscope;·len:·103,·SHA:·3734fbf1434827f0ae0ca20907e68d404ad1ec335ccaf64eb37c2ee31770268f·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 1196 | </span><span·class="ss">true</span><span·class="gp·unselectable"> | 1196 | </span><span·class="ss">true</span><span·class="gp·unselectable"> |
| 1197 | 2>·</span><span·class="nc">string</span><span·class="p">:</span><span·class="nf">equal</span><span·class="p"·data-group-id=" | 1197 | 2>·</span><span·class="nc">string</span><span·class="p">:</span><span·class="nf">equal</span><span·class="p"·data-group-id="2157437220-3">(</span><span·class="s">"åäö"</span><span·class="p">,</span><span·class="w">·</span><span·class="nc">unicode</span><span·class="p">:</span><span·class="nf">characters_to_nfd_binary</span><span·class="p"·data-group-id="2157437220-4">[·...·truncated·by·diffoscope;·len:·140,·SHA:·4e7610910531510bbe7bf9fdfdade485c8afff8e0596b43e28a7e9be43e63116·...·]-3">)</span><span·class="p">.</span><span·class="w"> |
| 1198 | </span><span·class="ss">false</span><span·class="gp·unselectable"> | 1198 | </span><span·class="ss">false</span><span·class="gp·unselectable"> |
| 1199 | 3>·</span><span·class="nc">string</span><span·class="p">:</span><span·class="nf">equal</span><span·class="p"·data-group-id=" | 1199 | 3>·</span><span·class="nc">string</span><span·class="p">:</span><span·class="nf">equal</span><span·class="p"·data-group-id="2157437220-5">(</span><span·class="s">"åäö"</span><span·class="p">,</span><span·class="w">·</span><span·class="nc">unicode</span><span·class="p">:</span><span·class="nf">characters_to_nfd_binary</span><span·class="p"·data-group-id="2157437220-6">[·...·truncated·by·diffoscope;·len:·291,·SHA:·c6166e9e5d3d78c47f07f37876d538c2162c5265f65c6d7f37dec958b603e887·...·]-5">)</span><span·class="p">.</span><span·class="w"> |
| 1200 | </span><span·class="ss">true</span></code></pre> | 1200 | </span><span·class="ss">true</span></code></pre> |
| 1201 | ··</section> | 1201 | ··</section> |
| 1202 | </section> | 1202 | </section> |
| 1203 | <section·class="detail"·id="find/2"> | 1203 | <section·class="detail"·id="find/2"> |
| 1204 | ··<div·class="detail-header"> | 1204 | ··<div·class="detail-header"> |
| 1205 | ····<a·href="#find/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 1205 | ····<a·href="#find/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| Offset 1255, 21 lines modified | Offset 1255, 21 lines modified | ||
| 1255 | ··············when·String·::·<a·href="unicode.html#t:chardata/0">unicode:chardata</a>(),·SearchPattern·::·<a·href="unicode.html#t:chardata/0">unicode:chardata</a>(),·Dir·::·<a·href="#t:direction/0">direction</a>().</pre> | 1255 | ··············when·String·::·<a·href="unicode.html#t:chardata/0">unicode:chardata</a>(),·SearchPattern·::·<a·href="unicode.html#t:chardata/0">unicode:chardata</a>(),·Dir·::·<a·href="#t:direction/0">direction</a>().</pre> |
| 1256 | ······</div> | 1256 | ······</div> |
| 1257 | <p>Removes·anything·before·<code·class="inline">SearchPattern</code>·in·<code·class="inline">String</code>·and·returns·the·remainder·of | 1257 | <p>Removes·anything·before·<code·class="inline">SearchPattern</code>·in·<code·class="inline">String</code>·and·returns·the·remainder·of |
| 1258 | the·string·or·<code·class="inline">nomatch</code>·if·<code·class="inline">SearchPattern</code>·is·not·found.·<code·class="inline">Dir</code>,·which·can·be | 1258 | the·string·or·<code·class="inline">nomatch</code>·if·<code·class="inline">SearchPattern</code>·is·not·found.·<code·class="inline">Dir</code>,·which·can·be |
| 1259 | <code·class="inline">leading</code>·or·<code·class="inline">trailing</code>,·indicates·from·which·direction·characters·are·to·be | 1259 | <code·class="inline">leading</code>·or·<code·class="inline">trailing</code>,·indicates·from·which·direction·characters·are·to·be |
| 1260 | searched.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">string</span><span·class="p">:</span><span·class="nf">find</span><span·class="p"·data-group-id=" | 1260 | searched.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">string</span><span·class="p">:</span><span·class="nf">find</span><span·class="p"·data-group-id="1507502224-1">(</span><span·class="s">"ab..cd..ef"</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"."</span><span·class="p"·data-group-id="1507502224-1">)</span><span·class="p">.</span><span·class="w"> |
| 1261 | </span><span·class="s">"..cd..ef"</span><span·class="gp·unselectable"> | 1261 | </span><span·class="s">"..cd..ef"</span><span·class="gp·unselectable"> |
| 1262 | 2>·</span><span·class="nc">string</span><span·class="p">:</span><span·class="nf">find</span><span·class="p"·data-group-id=" | 1262 | 2>·</span><span·class="nc">string</span><span·class="p">:</span><span·class="nf">find</span><span·class="p"·data-group-id="1507502224-2">(</span><span·class="p"·data-group-id="1507502224-3"><<</span><span·class="s">"ab..cd..ef"</span><span·class="p"·data-group-id="1507502224-3">>></span><span·class="p">,</span><span·class="w">·</span><span·class="s">"[·...·truncated·by·diffoscope;·len:·137,·SHA:·7300900e5574ac600f103bf1fd3a362cf48c7e5c5a9f148270c272d3cee97e35·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 1263 | </span><span·class="p"·data-group-id=" | 1263 | </span><span·class="p"·data-group-id="1507502224-4"><<</span><span·class="s">"..ef"</span><span·class="p"·data-group-id="1507502224-4">>></span><span·class="gp·unselectable"> |
| 1264 | 3>·</span><span·class="nc">string</span><span·class="p">:</span><span·class="nf">find</span><span·class="p"·data-group-id=" | 1264 | 3>·</span><span·class="nc">string</span><span·class="p">:</span><span·class="nf">find</span><span·class="p"·data-group-id="1507502224-5">(</span><span·class="p"·data-group-id="1507502224-6"><<</span><span·class="s">"ab..cd..ef"</span><span·class="p"·data-group-id="1507502224-6">>></span><span·class="p">,</span><span·class="w">·</span><span·class="s">"[·...·truncated·by·diffoscope;·len:·135,·SHA:·be47beb26d956e37d1bf4c89036b9f3b296b9ed5529544c514f659e8c1fa9c2f·...·]-5">)</span><span·class="p">.</span><span·class="w"> |
| 1265 | </span><span·class="ss">nomatch</span><span·class="gp·unselectable"> | 1265 | </span><span·class="ss">nomatch</span><span·class="gp·unselectable"> |
| 1266 | 4>·</span><span·class="nc">string</span><span·class="p">:</span><span·class="nf">find</span><span·class="p"·data-group-id=" | 1266 | 4>·</span><span·class="nc">string</span><span·class="p">:</span><span·class="nf">find</span><span·class="p"·data-group-id="1507502224-7">(</span><span·class="s">"ab..cd..ef"</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"x"</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">trailing</span><span·class="p"·data-grou[·...·truncated·by·diffoscope;·len:·16,·SHA:·966e0a591f776203064f3c4b5d1a1d0f8158225b82b41c10571f01e6956fccbd·...·]-7">)</span><span·class="p">.</span><span·class="w"> |
| 1267 | </span><span·class="ss">nomatch</span></code></pre> | 1267 | </span><span·class="ss">nomatch</span></code></pre> |
| 1268 | ··</section> | 1268 | ··</section> |
| 1269 | </section> | 1269 | </section> |
| 1270 | <section·class="detail"·id="is_empty/1"> | 1270 | <section·class="detail"·id="is_empty/1"> |
| 1271 | ··<div·class="detail-header"> | 1271 | ··<div·class="detail-header"> |
| 1272 | ····<a·href="#is_empty/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 1272 | ····<a·href="#is_empty/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| Offset 1290, 17 lines modified | Offset 1290, 17 lines modified | ||
| 1290 | ······<div·class="specs"> | 1290 | ······<div·class="specs"> |
| 1291 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·is_empty(String·::·<a·href="unicode.html#t:chardata/0">unicode:chardata</a>())·->·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:boolean/0">boolean</a>().</pre> | 1291 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·is_empty(String·::·<a·href="unicode.html#t:chardata/0">unicode:chardata</a>())·->·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:boolean/0">boolean</a>().</pre> |
| 1292 | ······</div> | 1292 | ······</div> |
| 1293 | <p>Returns·<code·class="inline">true</code>·if·<code·class="inline">String</code>·is·the·empty·string,·otherwise·<code·class="inline">false</code>.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">string</span><span·class="p">:</span><span·class="nf">is_empty</span><span·class="p"·data-group-id=" | 1293 | <p>Returns·<code·class="inline">true</code>·if·<code·class="inline">String</code>·is·the·empty·string,·otherwise·<code·class="inline">false</code>.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">string</span><span·class="p">:</span><span·class="nf">is_empty</span><span·class="p"·data-group-id="5666730137-1">(</span><span·class="s">"foo"</span><span·class="p"·data-group-id="5666730137-1">)</span><span·class="p">.</span><span·class="w"> |
| 1294 | </span><span·class="ss">false</span><span·class="gp·unselectable"> | 1294 | </span><span·class="ss">false</span><span·class="gp·unselectable"> |
| 1295 | 2>·</span><span·class="nc">string</span><span·class="p">:</span><span·class="nf">is_empty</span><span·class="p"·data-group-id=" | 1295 | 2>·</span><span·class="nc">string</span><span·class="p">:</span><span·class="nf">is_empty</span><span·class="p"·data-group-id="5666730137-2">(</span><span·class="p"·data-group-id="5666730137-3">[</span><span·class="s">""</span><span·class="p">,</span><span·class="p"·data-group-id="5666730137-4"><<</span><span·class="p"·data-group-id="5666730137-4">>></span><s[·...·truncated·by·diffoscope;·len:·92,·SHA:·5c9f68537c2071b22470919548214fbc7aa132ff9b104b357846e8497bc51c5d·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 1296 | </span><span·class="ss">true</span></code></pre> | 1296 | </span><span·class="ss">true</span></code></pre> |
| 1297 | ··</section> | 1297 | ··</section> |
| 1298 | </section> | 1298 | </section> |
| 1299 | <section·class="detail"·id="jaro_similarity/2"> | 1299 | <section·class="detail"·id="jaro_similarity/2"> |
| 1300 | ··<div·class="detail-header"> | 1300 | ··<div·class="detail-header"> |
| 1301 | ····<a·href="#jaro_similarity/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 1301 | ····<a·href="#jaro_similarity/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| Offset 1328, 21 lines modified | Offset 1328, 21 lines modified | ||
| 1328 | ·····························Similarity·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:float/0">float</a>().</pre> | 1328 | ·····························Similarity·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:float/0">float</a>().</pre> |
| 1329 | ······</div> | 1329 | ······</div> |
| 1330 | <p>Returns·a·float·between·<code·class="inline">+0.0</code>·and·<code·class="inline">1.0</code>·representing·the | 1330 | <p>Returns·a·float·between·<code·class="inline">+0.0</code>·and·<code·class="inline">1.0</code>·representing·the |
| 1331 | <a·href="https://en.wikipedia.org/wiki/Jaro%E2%80%93Winkler_distance">Jaro·similarity</a> | 1331 | <a·href="https://en.wikipedia.org/wiki/Jaro%E2%80%93Winkler_distance">Jaro·similarity</a> |
| 1332 | between·the·given·strings.·Strings·with·a·higher·similarity·will·score·closer | 1332 | between·the·given·strings.·Strings·with·a·higher·similarity·will·score·closer |
| 1333 | to·<code·class="inline">1.0</code>,·with·<code·class="inline">+0.0</code>·meaning·no·similarity·and·<code·class="inline">1.0</code>·meaning·an·exact·match.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">string</span><span·class="p">:</span><span·class="nf">jaro_similarity</span><span·class="p"·data-group-id=" | 1333 | to·<code·class="inline">1.0</code>,·with·<code·class="inline">+0.0</code>·meaning·no·similarity·and·<code·class="inline">1.0</code>·meaning·an·exact·match.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">string</span><span·class="p">:</span><span·class="nf">jaro_similarity</span><span·class="p"·data-group-id="7869156318-1">(</span><span·class="s">"ditto"</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"ditto"</span><span·class="p"·data-group-id="7869156318-1">)</span><span·class="p">.</span><span·class="w"> |
| 1334 | </span><span·class="mf">1.0</span><span·class="gp·unselectable"> | 1334 | </span><span·class="mf">1.0</span><span·class="gp·unselectable"> |
| 1335 | 2>·</span><span·class="nc">string</span><span·class="p">:</span><span·class="nf">jaro_similarity</span><span·class="p"·data-group-id=" | 1335 | 2>·</span><span·class="nc">string</span><span·class="p">:</span><span·class="nf">jaro_similarity</span><span·class="p"·data-group-id="7869156318-2">(</span><span·class="s">"foo"</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"bar"</span><span·class="p"·data-group-id="7869156318-2">)</span><span·class="p">.</span><span·class="w"> |
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| 154 | left.</p><p><a·href=""·id="sup_flags"></a></p><h3·id="module-supervisor-flags"·class="section-heading"> | 154 | left.</p><p><a·href=""·id="sup_flags"></a></p><h3·id="module-supervisor-flags"·class="section-heading"> |
| 155 | ··<a·href="#module-supervisor-flags"·class="hover-link"> | 155 | ··<a·href="#module-supervisor-flags"·class="hover-link"> |
| 156 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 156 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 157 | ··</a> | 157 | ··</a> |
| 158 | ··<span·class="text">Supervisor·flags</span> | 158 | ··<span·class="text">Supervisor·flags</span> |
| 159 | </h3> | 159 | </h3> |
| 160 | <p>The·supervisor·properties·are·defined·by·the·supervisor·flags.·The·type | 160 | <p>The·supervisor·properties·are·defined·by·the·supervisor·flags.·The·type |
| 161 | definition·for·the·supervisor·flags·is·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">sup_flags</span><span·class="p"·data-group-id=" | 161 | definition·for·the·supervisor·flags·is·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">sup_flags</span><span·class="p"·data-group-id="6086077251-1">(</span><span·class="p"·data-group-id="6086077251-1">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="6086077251-2">#{</span><span·class="ss">strategy</span><span·class="w">·</span[·...·truncated·by·diffoscope;·len:·179,·SHA:·de69721b72cc7afe355910aaf4a46d43405ed7080f48d67d63da6389fbece65d·...·]-3">)</span><span·class="p">,</span><span·class="w">···········</span><span·class="c1">%·optional</span><span·class="w"> |
| 162 | ················</span><span·class="ss">intensity</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="nf">non_neg_integer</span><span·class="p"·data-group-id=" | 162 | ················</span><span·class="ss">intensity</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="nf">non_neg_integer</span><span·class="p"·data-group-id="6086077251-4">(</span><span·class="p"·data-group-id="6086077251-4">)</span><span·class="p">,</span><span·class="w">···</span><span·class="c1">%·optional</span><span·class="w"> |
| 163 | ················</span><span·class="ss">period</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="nf">pos_integer</span><span·class="p"·data-group-id=" | 163 | ················</span><span·class="ss">period</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="nf">pos_integer</span><span·class="p"·data-group-id="6086077251-5">(</span><span·class="p"·data-group-id="6086077251-5">)</span><span·class="p">,</span><span·class="w">··········</span><span·class="c1">%·optional</span><span·class="w"> |
| 164 | ················</span><span·class="ss">hibernate_after</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="nf">timeout</span><span·class="p"·data-group-id=" | 164 | ················</span><span·class="ss">hibernate_after</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="nf">timeout</span><span·class="p"·data-group-id="6086077251-6">(</span><span·class="p"·data-group-id="6086077251-6">)</span><span·class="p">,</span><span·class="w">·····</span><span·class="c1">%·optional,·available·since·OTP·28.0</span><span·class="w"> |
| 165 | ················</span><span·class="ss">auto_shutdown</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="nf">auto_shutdown</span><span·class="p"·data-group-id=" | 165 | ················</span><span·class="ss">auto_shutdown</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="nf">auto_shutdown</span><span·class="p"·data-group-id="6086077251-7">(</span><span·class="p"·data-group-id="6086077251-7">)</span><span·class="p"·data-group-id="6086077251-2">}</span><span·class="w">·</span><span·class="c1">%·optional</span></code></pre><h4>Restart·Strategies</h4><p>A·supervisor·can·have·one·of·the·following·<em>restart·strategies</em>·specified·with |
| 166 | the·<code·class="inline">strategy</code>·key·in·the·above·map:</p><ul><li><p><code·class="inline">one_for_one</code>·-·If·one·child·process·terminates·and·is·to·be·restarted,·only | 166 | the·<code·class="inline">strategy</code>·key·in·the·above·map:</p><ul><li><p><code·class="inline">one_for_one</code>·-·If·one·child·process·terminates·and·is·to·be·restarted,·only |
| 167 | that·child·process·is·affected.·This·is·the·default·restart·strategy.</p></li><li><p><code·class="inline">one_for_all</code>·-·If·one·child·process·terminates·and·is·to·be·restarted,·all | 167 | that·child·process·is·affected.·This·is·the·default·restart·strategy.</p></li><li><p><code·class="inline">one_for_all</code>·-·If·one·child·process·terminates·and·is·to·be·restarted,·all |
| 168 | other·child·processes·are·terminated·and·then·all·child·processes·are | 168 | other·child·processes·are·terminated·and·then·all·child·processes·are |
| 169 | restarted.</p></li><li><p><code·class="inline">rest_for_one</code>·-·If·one·child·process·terminates·and·is·to·be·restarted,·the | 169 | restarted.</p></li><li><p><code·class="inline">rest_for_one</code>·-·If·one·child·process·terminates·and·is·to·be·restarted,·the |
| 170 | 'rest'·of·the·child·processes·(that·is,·the·child·processes·after·the | 170 | 'rest'·of·the·child·processes·(that·is,·the·child·processes·after·the |
| 171 | terminated·child·process·in·the·start·order)·are·terminated.·Then·the | 171 | terminated·child·process·in·the·start·order)·are·terminated.·Then·the |
| 172 | terminated·child·process·and·all·child·processes·after·it·are·restarted.</p></li><li><p><code·class="inline">simple_one_for_one</code>·-·A·simplified·<code·class="inline">one_for_one</code>·supervisor,·where·all·child | 172 | terminated·child·process·and·all·child·processes·after·it·are·restarted.</p></li><li><p><code·class="inline">simple_one_for_one</code>·-·A·simplified·<code·class="inline">one_for_one</code>·supervisor,·where·all·child |
| Offset 210, 21 lines modified | Offset 210, 21 lines modified | ||
| 210 | the·automatic·shutdowns·they·rely·on·will·not·happen.</p><p>It·is·up·to·implementors·to·take·proper·precautions·if·they·expect·that·their | 210 | the·automatic·shutdowns·they·rely·on·will·not·happen.</p><p>It·is·up·to·implementors·to·take·proper·precautions·if·they·expect·that·their |
| 211 | applications·may·be·compiled·with·older·OTP·versions.</p></section><p><a·href=""·id="child_spec"></a></p><h3·id="module-child-specification"·class="section-heading"> | 211 | applications·may·be·compiled·with·older·OTP·versions.</p></section><p><a·href=""·id="child_spec"></a></p><h3·id="module-child-specification"·class="section-heading"> |
| 212 | ··<a·href="#module-child-specification"·class="hover-link"> | 212 | ··<a·href="#module-child-specification"·class="hover-link"> |
| 213 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 213 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 214 | ··</a> | 214 | ··</a> |
| 215 | ··<span·class="text">Child·specification</span> | 215 | ··<span·class="text">Child·specification</span> |
| 216 | </h3> | 216 | </h3> |
| 217 | <p>The·type·definition·of·a·child·specification·is·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">child_spec</span><span·class="p"·data-group-id=" | 217 | <p>The·type·definition·of·a·child·specification·is·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">child_spec</span><span·class="p"·data-group-id="6568851725-1">(</span><span·class="p"·data-group-id="6568851725-1">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="6568851725-2">#{</span><span·class="ss">id</span><span·class="w">·</span><span[·...·truncated·by·diffoscope;·len:·173,·SHA:·9771e6b3f485ef97afae9b70ccb6dabf754c34e3906dbf44910ee2cf0fd0298e·...·]-3">)</span><span·class="p">,</span><span·class="w">·············</span><span·class="c1">%·mandatory</span><span·class="w"> |
| 218 | ·················</span><span·class="ss">start</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="nf">mfargs</span><span·class="p"·data-group-id=" | 218 | ·················</span><span·class="ss">start</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="nf">mfargs</span><span·class="p"·data-group-id="6568851725-4">(</span><span·class="p"·data-group-id="6568851725-4">)</span><span·class="p">,</span><span·class="w">············</span><span·class="c1">%·mandatory</span><span·class="w"> |
| 219 | ·················</span><span·class="ss">restart</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="nf">restart</span><span·class="p"·data-group-id=" | 219 | ·················</span><span·class="ss">restart</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="nf">restart</span><span·class="p"·data-group-id="6568851725-5">(</span><span·class="p"·data-group-id="6568851725-5">)</span><span·class="p">,</span><span·class="w">·········</span><span·class="c1">%·optional</span><span·class="w"> |
| 220 | ·················</span><span·class="ss">significant</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="nf">significant</span><span·class="p"·data-group-id=" | 220 | ·················</span><span·class="ss">significant</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="nf">significant</span><span·class="p"·data-group-id="6568851725-6">(</span><span·class="p"·data-group-id="6568851725-6">)</span><span·class="p">,</span><span·class="w">·</span><span·class="c1">%·optional</span><span·class="w"> |
| 221 | ·················</span><span·class="ss">shutdown</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="nf">shutdown</span><span·class="p"·data-group-id=" | 221 | ·················</span><span·class="ss">shutdown</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="nf">shutdown</span><span·class="p"·data-group-id="6568851725-7">(</span><span·class="p"·data-group-id="6568851725-7">)</span><span·class="p">,</span><span·class="w">·······</span><span·class="c1">%·optional</span><span·class="w"> |
| 222 | ·················</span><span·class="ss">type</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="nf">worker</span><span·class="p"·data-group-id=" | 222 | ·················</span><span·class="ss">type</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="nf">worker</span><span·class="p"·data-group-id="6568851725-8">(</span><span·class="p"·data-group-id="6568851725-8">)</span><span·class="p">,</span><span·class="w">·············</span><span·class="c1">%·optional</span><span·class="w"> |
| 223 | ·················</span><span·class="ss">modules</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="nf">modules</span><span·class="p"·data-group-id=" | 223 | ·················</span><span·class="ss">modules</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="nf">modules</span><span·class="p"·data-group-id="6568851725-9">(</span><span·class="p"·data-group-id="6568851725-9">)</span><span·class="p"·data-group-id="6568851725-2">}</span><span·class="w">·········</span><span·class="c1">%·optional</span></code></pre><p>The·old·tuple·format·is·kept·for·backwards·compatibility,·see·<a·href="#t:child_spec/0"><code·class="inline">child_spec/0</code></a>, |
| 224 | but·the·map·is·preferred.</p><ul><li><p><code·class="inline">id</code>·is·used·to·identify·the·child·specification·internally·by·the·supervisor.</p><p>The·<code·class="inline">id</code>·key·is·mandatory.</p><p>Notice·that·this·identifier·on·occations·has·been·called·"name".·As·far·as | 224 | but·the·map·is·preferred.</p><ul><li><p><code·class="inline">id</code>·is·used·to·identify·the·child·specification·internally·by·the·supervisor.</p><p>The·<code·class="inline">id</code>·key·is·mandatory.</p><p>Notice·that·this·identifier·on·occations·has·been·called·"name".·As·far·as |
| 225 | possible,·the·terms·"identifier"·or·"id"·are·now·used·but·to·keep·backward | 225 | possible,·the·terms·"identifier"·or·"id"·are·now·used·but·to·keep·backward |
| 226 | compatibility,·some·occurences·of·"name"·can·still·be·found,·for·example·in | 226 | compatibility,·some·occurences·of·"name"·can·still·be·found,·for·example·in |
| 227 | error·messages.</p></li><li><p><code·class="inline">start</code>·defines·the·function·call·used·to·start·the·child·process.·It·must·be | 227 | error·messages.</p></li><li><p><code·class="inline">start</code>·defines·the·function·call·used·to·start·the·child·process.·It·must·be |
| 228 | a·module-function-arguments·tuple·<code·class="inline">{M,F,A}</code>·used·as | 228 | a·module-function-arguments·tuple·<code·class="inline">{M,F,A}</code>·used·as |
| 229 | <a·href="../../../../erts-16.0/doc/html/erlang.html#apply/3"><code·class="inline">apply(M,F,A)</code></a>.</p><p>The·start·function·<em>must·create·and·link·to</em>·the·child·process,·and·must | 229 | <a·href="../../../../erts-16.0/doc/html/erlang.html#apply/3"><code·class="inline">apply(M,F,A)</code></a>.</p><p>The·start·function·<em>must·create·and·link·to</em>·the·child·process,·and·must |
| 230 | return·<code·class="inline">{ok,Child}</code>·or·<code·class="inline">{ok,Child,Info}</code>,·where·<code·class="inline">Child</code>·is·the·pid·of·the | 230 | return·<code·class="inline">{ok,Child}</code>·or·<code·class="inline">{ok,Child,Info}</code>,·where·<code·class="inline">Child</code>·is·the·pid·of·the |
| Offset 1796, 15 lines modified | Offset 1796, 15 lines modified | ||
| 1796 | ······<p·class="built-using"> | 1796 | ······<p·class="built-using"> |
| 1797 | ········Built·using | 1797 | ········Built·using |
| 1798 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1798 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1799 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1799 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1800 | ······</p> | 1800 | ······</p> |
| 1801 | <p>Copyright·©·1996-202 | 1801 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1802 | ····</footer> | 1802 | ····</footer> |
| 1803 | ··</div> | 1803 | ··</div> |
| 1804 | </main> | 1804 | </main> |
| 1805 | </div> | 1805 | </div> |
| 1806 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1806 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1807 | ··<script> | 1807 | ··<script> |
| 1808 | ··let·initialized·=·false; | 1808 | ··let·initialized·=·false; |
| Offset 407, 15 lines modified | Offset 407, 15 lines modified | ||
| 407 | ······<p·class="built-using"> | 407 | ······<p·class="built-using"> |
| 408 | ········Built·using | 408 | ········Built·using |
| 409 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 409 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 410 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 410 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 411 | ······</p> | 411 | ······</p> |
| 412 | <p>Copyright·©·1996-202 | 412 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 413 | ····</footer> | 413 | ····</footer> |
| 414 | ··</div> | 414 | ··</div> |
| 415 | </main> | 415 | </main> |
| 416 | </div> | 416 | </div> |
| 417 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 417 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 418 | ··<script> | 418 | ··<script> |
| 419 | ··let·initialized·=·false; | 419 | ··let·initialized·=·false; |
| Offset 2229, 15 lines modified | Offset 2229, 15 lines modified | ||
| 2229 | ······<p·class="built-using"> | 2229 | ······<p·class="built-using"> |
| 2230 | ········Built·using | 2230 | ········Built·using |
| 2231 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 2231 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 2232 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 2232 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 2233 | ······</p> | 2233 | ······</p> |
| 2234 | <p>Copyright·©·1996-202 | 2234 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 2235 | ····</footer> | 2235 | ····</footer> |
| 2236 | ··</div> | 2236 | ··</div> |
| 2237 | </main> | 2237 | </main> |
| 2238 | </div> | 2238 | </div> |
| 2239 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 2239 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 2240 | ··<script> | 2240 | ··<script> |
| 2241 | ··let·initialized·=·false; | 2241 | ··let·initialized·=·false; |
| Offset 137, 109 lines modified | Offset 137, 109 lines modified | ||
| 137 | ║·······│·······│·······║ | 137 | ║·······│·······│·······║ |
| 138 | ║·······│·······│·······║ | 138 | ║·······│·······│·······║ |
| 139 | ╟───────┼───────┼───────╢ | 139 | ╟───────┼───────┼───────╢ |
| 140 | ║·······│·······│·······║ | 140 | ║·······│·······│·······║ |
| 141 | ║·······│·······│·······║ | 141 | ║·······│·······│·······║ |
| 142 | ║·······│·······│·······║ | 142 | ║·······│·······│·······║ |
| 143 | ╚═══════╧═══════╧═══════╝</code></pre><p>We·will·use·the·alternate·screen·buffer·for·our·game·so·first·we·need·to·set·that·up:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="ch">#!/usr/bin/env·escript | 143 | ╚═══════╧═══════╧═══════╝</code></pre><p>We·will·use·the·alternate·screen·buffer·for·our·game·so·first·we·need·to·set·that·up:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="ch">#!/usr/bin/env·escript |
| 144 | </span><span·class="nf">main</span><span·class="p"·data-group-id=" | 144 | </span><span·class="nf">main</span><span·class="p"·data-group-id="3727322713-1">(</span><span·class="p">_</span><span·class="n">Args</span><span·class="p"·data-group-id="3727322713-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 145 | ···· | 145 | ···· |
| 146 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">put_chars</span><span·class="p"·data-group-id=" | 146 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">put_chars</span><span·class="p"·data-group-id="3727322713-2">(</span><span·class="s">"\e[?1049h"</span><span·class="p"·data-group-id="3727322713-2">)</span><span·class="p">,</span><span·class="w">·</span><span·class="c1">%%·Enable·alternate·screen·buffer</span><span·class="w"> |
| 147 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">put_chars</span><span·class="p"·data-group-id=" | 147 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">put_chars</span><span·class="p"·data-group-id="3727322713-3">(</span><span·class="s">"\e[?25l"</span><span·class="p"·data-group-id="3727322713-3">)</span><span·class="p">,</span><span·class="w">·</span><span·class="c1">%%·Hide·the·cursor</span><span·class="w"> |
| 148 | ····</span><span·class="nf">draw_board</span><span·class="p"·data-group-id=" | 148 | ····</span><span·class="nf">draw_board</span><span·class="p"·data-group-id="3727322713-4">(</span><span·class="p"·data-group-id="3727322713-4">)</span><span·class="p">,</span><span·class="w"> |
| 149 | ····</span><span·class="nc">timer</span><span·class="p">:</span><span·class="nf">sleep</span><span·class="p"·data-group-id=" | 149 | ····</span><span·class="nc">timer</span><span·class="p">:</span><span·class="nf">sleep</span><span·class="p"·data-group-id="3727322713-5">(</span><span·class="mi">5000</span><span·class="p"·data-group-id="3727322713-5">)</span><span·class="p">,</span><span·class="w"> |
| 150 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">put_chars</span><span·class="p"·data-group-id=" | 150 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">put_chars</span><span·class="p"·data-group-id="3727322713-6">(</span><span·class="s">"\e[?25h"</span><span·class="p"·data-group-id="3727322713-6">)</span><span·class="p">,</span><span·class="w">·</span><span·class="c1">%%·Show·the·cursor</span><span·class="w"> |
| 151 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">put_chars</span><span·class="p"·data-group-id=" | 151 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">put_chars</span><span·class="p"·data-group-id="3727322713-7">(</span><span·class="s">"\e[?1049l"</span><span·class="p"·data-group-id="3727322713-7">)</span><span·class="p">,</span><span·class="w">·</span><span·class="c1">%%·Disable·alternate·screen·buffer</span><span·class="w"> |
| 152 | ····</span><span·class="ss">ok</span><span·class="p">.</span></code></pre><p>We·then·use·the·box·drawing·parts·of·Unicode·to·draw·our·board:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">draw_board</span><span·class="p"·data-group-id=" | 152 | ····</span><span·class="ss">ok</span><span·class="p">.</span></code></pre><p>We·then·use·the·box·drawing·parts·of·Unicode·to·draw·our·board:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">draw_board</span><span·class="p"·data-group-id="8786767817-1">(</span><span·class="p"·data-group-id="8786767817-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 153 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">put_chars</span><span·class="p"·data-group-id=" | 153 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">put_chars</span><span·class="p"·data-group-id="8786767817-2">(</span><span·class="s">"\e[5;0H"</span><span·class="p"·data-group-id="8786767817-2">)</span><span·class="p">,</span><span·class="w">·</span><span·class="c1">%%·Move·cursor·to·top·left</span><span·class="w"> |
| 154 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">put_chars</span><span·class="p"·data-group-id=" | 154 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">put_chars</span><span·class="p"·data-group-id="8786767817-3">(</span><span·class="w"> |
| 155 | ······</span><span·class="p"·data-group-id=" | 155 | ······</span><span·class="p"·data-group-id="8786767817-4">[</span><span·class="s">"·····╔═══════╤═══════╤═══════╗\r\n"</span><span·class="p">,</span><span·class="w"> |
| 156 | ·······</span><span·class="s">"·····║·······│·······│·······║\r\n"</span><span·class="p">,</span><span·class="w"> | 156 | ·······</span><span·class="s">"·····║·······│·······│·······║\r\n"</span><span·class="p">,</span><span·class="w"> |
| 157 | ·······</span><span·class="s">"·····║·······│·······│·······║·····Place·an·X·by·pressing·Enter\r\n"</span><span·class="p">,</span><span·class="w"> | 157 | ·······</span><span·class="s">"·····║·······│·······│·······║·····Place·an·X·by·pressing·Enter\r\n"</span><span·class="p">,</span><span·class="w"> |
| 158 | ·······</span><span·class="s">"·····║·······│·······│·······║\r\n"</span><span·class="p">,</span><span·class="w"> | 158 | ·······</span><span·class="s">"·····║·······│·······│·······║\r\n"</span><span·class="p">,</span><span·class="w"> |
| 159 | ·······</span><span·class="s">"·····╟───────┼───────┼───────╢\r\n"</span><span·class="p">,</span><span·class="w"> | 159 | ·······</span><span·class="s">"·····╟───────┼───────┼───────╢\r\n"</span><span·class="p">,</span><span·class="w"> |
| 160 | ·······</span><span·class="s">"·····║·······│·······│·······║\r\n"</span><span·class="p">,</span><span·class="w"> | 160 | ·······</span><span·class="s">"·····║·······│·······│·······║\r\n"</span><span·class="p">,</span><span·class="w"> |
| 161 | ·······</span><span·class="s">"·····║·······│·······│·······║\r\n"</span><span·class="p">,</span><span·class="w"> | 161 | ·······</span><span·class="s">"·····║·······│·······│·······║\r\n"</span><span·class="p">,</span><span·class="w"> |
| 162 | ·······</span><span·class="s">"·····║·······│·······│·······║\r\n"</span><span·class="p">,</span><span·class="w"> | 162 | ·······</span><span·class="s">"·····║·······│·······│·······║\r\n"</span><span·class="p">,</span><span·class="w"> |
| 163 | ·······</span><span·class="s">"·····╟───────┼───────┼───────╢\r\n"</span><span·class="p">,</span><span·class="w"> | 163 | ·······</span><span·class="s">"·····╟───────┼───────┼───────╢\r\n"</span><span·class="p">,</span><span·class="w"> |
| 164 | ·······</span><span·class="s">"·····║·······│·······│·······║\r\n"</span><span·class="p">,</span><span·class="w"> | 164 | ·······</span><span·class="s">"·····║·······│·······│·······║\r\n"</span><span·class="p">,</span><span·class="w"> |
| 165 | ·······</span><span·class="s">"·····║·······│·······│·······║\r\n"</span><span·class="p">,</span><span·class="w"> | 165 | ·······</span><span·class="s">"·····║·······│·······│·······║\r\n"</span><span·class="p">,</span><span·class="w"> |
| 166 | ·······</span><span·class="s">"·····║·······│·······│·······║\r\n"</span><span·class="p">,</span><span·class="w"> | 166 | ·······</span><span·class="s">"·····║·······│·······│·······║\r\n"</span><span·class="p">,</span><span·class="w"> |
| 167 | ·······</span><span·class="s">"·····╚═══════╧═══════╧═══════╝\r\n"</span><span·class="p"·data-group-id=" | 167 | ·······</span><span·class="s">"·····╚═══════╧═══════╧═══════╝\r\n"</span><span·class="p"·data-group-id="8786767817-4">]</span><span·class="p"·data-group-id="8786767817-3">)</span><span·class="p">,</span><span·class="w"> |
| 168 | ····</span><span·class="ss">ok</span><span·class="p">.</span></code></pre><p>Let·us·add·some·interactivity·to·our·game!·To·do·that·we·need·to·change·the | 168 | ····</span><span·class="ss">ok</span><span·class="p">.</span></code></pre><p>Let·us·add·some·interactivity·to·our·game!·To·do·that·we·need·to·change·the |
| 169 | shell·from·running·in·<code·class="inline">cooked</code>·to·<code·class="inline">raw</code>·mode.·This·is·done·by·calling | 169 | shell·from·running·in·<code·class="inline">cooked</code>·to·<code·class="inline">raw</code>·mode.·This·is·done·by·calling |
| 170 | <a·href="shell.html#start_interactive/1"><code·class="inline">shell:start_interactive({noshell,·raw})</code></a>. | 170 | <a·href="shell.html#start_interactive/1"><code·class="inline">shell:start_interactive({noshell,·raw})</code></a>. |
| 171 | We·can·then·use·<a·href="io.html#get_chars/2"><code·class="inline">io:get_chars/2</code></a>·to·read·key·strokes·from·the·user.·The·key | 171 | We·can·then·use·<a·href="io.html#get_chars/2"><code·class="inline">io:get_chars/2</code></a>·to·read·key·strokes·from·the·user.·The·key |
| 172 | strokes·will·be·returned·as·<a·href="https://en.wikipedia.org/wiki/ANSI_escape_code">ANSI·escape·codes</a>,· | 172 | strokes·will·be·returned·as·<a·href="https://en.wikipedia.org/wiki/ANSI_escape_code">ANSI·escape·codes</a>,· |
| 173 | so·we·will·have·need·to·handle·the·codes·for·up,·down,·left,·right·and·enter.</p><p>It·could·look·something·like·this:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">main</span><span·class="p"·data-group-id=" | 173 | so·we·will·have·need·to·handle·the·codes·for·up,·down,·left,·right·and·enter.</p><p>It·could·look·something·like·this:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">main</span><span·class="p"·data-group-id="9183402503-1">(</span><span·class="p">_</span><span·class="n">Args</span><span·class="p"·data-group-id="9183402503-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 174 | ····</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">shell</span><span·class="p">:</span><span·class="nf">start_interactive</span><span·class="p"·data-group-id=" | 174 | ····</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">shell</span><span·class="p">:</span><span·class="nf">start_interactive</span><span·class="p"·data-group-id="9183402503-2">(</span><span·class="p"·data-group-id="9183402503-3">{</span><span·class="ss">noshell</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">raw</span><span·class="p"·data-group-id="9183402503-3">}</span><span·class="p"·data-g[·...·truncated·by·diffoscope;·len:·18,·SHA:·9b0dabddc8b162ee9bd6129bc0663bea3492edafa212aaa85ae51d51ff996c2d·...·]3-2">)</span><span·class="p">,</span><span·class="w"> |
| 175 | ···· | 175 | ···· |
| 176 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">put_chars</span><span·class="p"·data-group-id=" | 176 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">put_chars</span><span·class="p"·data-group-id="9183402503-4">(</span><span·class="s">"\e[?1049h"</span><span·class="p"·data-group-id="9183402503-4">)</span><span·class="p">,</span><span·class="w">·</span><span·class="c1">%%·Enable·alternate·screen·buffer</span><span·class="w"> |
| 177 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">put_chars</span><span·class="p"·data-group-id=" | 177 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">put_chars</span><span·class="p"·data-group-id="9183402503-5">(</span><span·class="s">"\e[?25l"</span><span·class="p"·data-group-id="9183402503-5">)</span><span·class="p">,</span><span·class="w">·</span><span·class="c1">%%·Hide·the·cursor</span><span·class="w"> |
| 178 | ····</span><span·class="nf">draw_board</span><span·class="p"·data-group-id=" | 178 | ····</span><span·class="nf">draw_board</span><span·class="p"·data-group-id="9183402503-6">(</span><span·class="p"·data-group-id="9183402503-6">)</span><span·class="p">,</span><span·class="w"> |
| 179 | ····</span><span·class="nf">loop</span><span·class="p"·data-group-id=" | 179 | ····</span><span·class="nf">loop</span><span·class="p"·data-group-id="9183402503-7">(</span><span·class="mi">0</span><span·class="p"·data-group-id="9183402503-7">)</span><span·class="p">,</span><span·class="w"> |
| 180 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">put_chars</span><span·class="p"·data-group-id=" | 180 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">put_chars</span><span·class="p"·data-group-id="9183402503-8">(</span><span·class="s">"\e[?25h"</span><span·class="p"·data-group-id="9183402503-8">)</span><span·class="p">,</span><span·class="w">·</span><span·class="c1">%%·Show·the·cursor</span><span·class="w"> |
| 181 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">put_chars</span><span·class="p"·data-group-id=" | 181 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">put_chars</span><span·class="p"·data-group-id="9183402503-9">(</span><span·class="s">"\e[?1049l"</span><span·class="p"·data-group-id="9183402503-9">)</span><span·class="p">,</span><span·class="w">·</span><span·class="c1">%%·Disable·alternate·screen·buffer</span><span·class="w"> |
| 182 | ····</span><span·class="ss">ok</span><span·class="p">.</span><span·class="w"> | 182 | ····</span><span·class="ss">ok</span><span·class="p">.</span><span·class="w"> |
| 183 | </span><span·class="nf">loop</span><span·class="p"·data-group-id=" | 183 | </span><span·class="nf">loop</span><span·class="p"·data-group-id="9183402503-10">(</span><span·class="n">Pos</span><span·class="p"·data-group-id="9183402503-10">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 184 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">put_chars</span><span·class="p"·data-group-id=" | 184 | ····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">put_chars</span><span·class="p"·data-group-id="9183402503-11">(</span><span·class="nf">draw_selection</span><span·class="p"·data-group-id="9183402503-12">(</span><span·class="n">Pos</span><span·class="p"·data-group-id="9183402503-12">)</span><span·class="p"·data-group-id="9183402503-11">)</span><span·class="p">,</span><span·class="w"> |
| 185 | ····</span><span·class="c1">%%·Read·at·most·1024·characters·from·stdin.</span><span·class="w"> | 185 | ····</span><span·class="c1">%%·Read·at·most·1024·characters·from·stdin.</span><span·class="w"> |
| 186 | ····</span><span·class="p"·data-group-id=" | 186 | ····</span><span·class="p"·data-group-id="9183402503-13">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Chars</span><span·class="p"·data-group-id="9183402503-13">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span[·...·truncated·by·diffoscope;·len:·283,·SHA:·c3ee38439f7f9e2192ed96824293ab7ffcceb33271bff1f53a5433a7d2d1a938·...·]3-14">)</span><span·class="p">,</span><span·class="w"> |
| 187 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nf">handle_input</span><span·class="p"·data-group-id=" | 187 | ····</span><span·class="k">case</span><span·class="w">·</span><span·class="nf">handle_input</span><span·class="p"·data-group-id="9183402503-15">(</span><span·class="n">Chars</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Pos</span><span·class="p"·data-group-id="9183402503-15">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 188 | ········</span><span·class="ss">stop</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">stop</span><span·class="p">;</span><span·class="w"> | 188 | ········</span><span·class="ss">stop</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">stop</span><span·class="p">;</span><span·class="w"> |
| 189 | ········</span><span·class="n">NewPos</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 189 | ········</span><span·class="n">NewPos</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 190 | ············</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">put_chars</span><span·class="p"·data-group-id=" | 190 | ············</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">put_chars</span><span·class="p"·data-group-id="9183402503-16">(</span><span·class="nf">clear_selection</span><span·class="p"·data-group-id="9183402503-17">(</span><span·class="n">Pos</span><span·class="p"·data-group-id="9183402503-17">)</span><span·class="p"·data-group-id="9183402503-16">)</span><span·class="p">,</span><span·class="w"> |
| 191 | ············</span><span·class="nf">loop</span><span·class="p"·data-group-id=" | 191 | ············</span><span·class="nf">loop</span><span·class="p"·data-group-id="9183402503-18">(</span><span·class="n">NewPos</span><span·class="p"·data-group-id="9183402503-18">)</span><span·class="w"> |
| 192 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> | 192 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> |
| 193 | </span><span·class="nf">handle_input</span><span·class="p"·data-group-id=" | 193 | </span><span·class="nf">handle_input</span><span·class="p"·data-group-id="9183402503-19">(</span><span·class="s">"\e[A"</span><span·class="w">·</span><span·class="o">++</span><span·class="w">·</span><span·class="n">Rest</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Pos</span><span·class="p"·data[·...·truncated·by·diffoscope;·len:·20,·SHA:·5a3610259d2ee2e8608963b3f9c8b0258487ac2745bbd3381c8483d1f4dff913·...·]3-19">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 194 | ····</span><span·class="c1">%%·Up·key</span><span·class="w"> | 194 | ····</span><span·class="c1">%%·Up·key</span><span·class="w"> |
| 195 | ····</span><span·class="nf">handle_input</span><span·class="p"·data-group-id=" | 195 | ····</span><span·class="nf">handle_input</span><span·class="p"·data-group-id="9183402503-20">(</span><span·class="n">Rest</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">max</span><span·class="p"·data-group-id="9183402503-21">(</span><span·class="mi">0</span><span·class="p">,</span><span·class="w">·</span><spa[·...·truncated·by·diffoscope;·len:·213,·SHA:·c004e50fe6decd8d53cb7ea982338518ac2efcad9179e0da589788a45ffbbfe1·...·]3-20">)</span><span·class="p">;</span><span·class="w"> |
| 196 | </span><span·class="nf">handle_input</span><span·class="p"·data-group-id=" | 196 | </span><span·class="nf">handle_input</span><span·class="p"·data-group-id="9183402503-22">(</span><span·class="s">"\e[B"</span><span·class="w">·</span><span·class="o">++</span><span·class="w">·</span><span·class="n">Rest</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Pos</span><span·class="p"·data[·...·truncated·by·diffoscope;·len:·20,·SHA:·5a3610259d2ee2e8608963b3f9c8b0258487ac2745bbd3381c8483d1f4dff913·...·]3-22">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 197 | ····</span><span·class="c1">%%·Down·key</span><span·class="w"> | 197 | ····</span><span·class="c1">%%·Down·key</span><span·class="w"> |
| 198 | ····</span><span·class="nf">handle_input</span><span·class="p"·data-group-id=" | 198 | ····</span><span·class="nf">handle_input</span><span·class="p"·data-group-id="9183402503-23">(</span><span·class="n">Rest</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">min</span><span·class="p"·data-group-id="9183402503-24">(</span><span·class="mi">8</span><span·class="p">,</span><span·class="w">·</span><spa[·...·truncated·by·diffoscope;·len:·213,·SHA:·4925ab6632d73d4f0bede5be1af1f4dbabc543afd0327104fe6baa23b57bfbd8·...·]3-23">)</span><span·class="p">;</span><span·class="w"> |
| 199 | </span><span·class="nf">handle_input</span><span·class="p"·data-group-id=" | 199 | </span><span·class="nf">handle_input</span><span·class="p"·data-group-id="9183402503-25">(</span><span·class="s">"\e[C"</span><span·class="w">·</span><span·class="o">++</span><span·class="w">·</span><span·class="n">Rest</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Pos</span><span·class="p"·data[·...·truncated·by·diffoscope;·len:·20,·SHA:·5a3610259d2ee2e8608963b3f9c8b0258487ac2745bbd3381c8483d1f4dff913·...·]3-25">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 200 | ····</span><span·class="c1">%%·right·key</span><span·class="w"> | 200 | ····</span><span·class="c1">%%·right·key</span><span·class="w"> |
| 201 | ····</span><span·class="nf">handle_input</span><span·class="p"·data-group-id=" | 201 | ····</span><span·class="nf">handle_input</span><span·class="p"·data-group-id="9183402503-26">(</span><span·class="n">Rest</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">min</span><span·class="p"·data-group-id="9183402503-27">(</span><span·class="mi">8</span><span·class="p">,</span><span·class="w">·</span><spa[·...·truncated·by·diffoscope;·len:·213,·SHA:·c6cfcdd3233dc6d735bf6c091cbdc7dd1bdabb190e2dfede1d558919996b42a3·...·]3-26">)</span><span·class="p">;</span><span·class="w"> |
| 202 | </span><span·class="nf">handle_input</span><span·class="p"·data-group-id=" | 202 | </span><span·class="nf">handle_input</span><span·class="p"·data-group-id="9183402503-28">(</span><span·class="s">"\e[D"</span><span·class="w">·</span><span·class="o">++</span><span·class="w">·</span><span·class="n">Rest</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Pos</span><span·class="p"·data[·...·truncated·by·diffoscope;·len:·20,·SHA:·5a3610259d2ee2e8608963b3f9c8b0258487ac2745bbd3381c8483d1f4dff913·...·]3-28">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 203 | ····</span><span·class="c1">%%·left·key</span><span·class="w"> | 203 | ····</span><span·class="c1">%%·left·key</span><span·class="w"> |
| 204 | ····</span><span·class="nf">handle_input</span><span·class="p"·data-group-id=" | 204 | ····</span><span·class="nf">handle_input</span><span·class="p"·data-group-id="9183402503-29">(</span><span·class="n">Rest</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">max</span><span·class="p"·data-group-id="9183402503-30">(</span><span·class="mi">0</span><span·class="p">,</span><span·class="w">·</span><spa[·...·truncated·by·diffoscope;·len:·213,·SHA:·66138f2ddc37e010d434c8d8f7a8ccfb8ef8117fcc5a8d6dd298928b7f69a466·...·]3-29">)</span><span·class="p">;</span><span·class="w"> |
| 205 | </span><span·class="nf">handle_input</span><span·class="p"·data-group-id=" | 205 | </span><span·class="nf">handle_input</span><span·class="p"·data-group-id="9183402503-31">(</span><span·class="s">"q"</span><span·class="w">·</span><span·class="o">++</span><span·class="w">·</span><span·class="p">_</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="n">State</span>[·...·truncated·by·diffoscope;·len:·40,·SHA:·da25bf14d44738b94dfcb5b1d4fb351baff0143827d8a56a2b5cf72044a77280·...·]3-31">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 206 | ····</span><span·class="ss">stop</span><span·class="p">;</span><span·class="w"> | 206 | ····</span><span·class="ss">stop</span><span·class="p">;</span><span·class="w"> |
| 207 | </span><span·class="nf">handle_input</span><span·class="p"·data-group-id=" | 207 | </span><span·class="nf">handle_input</span><span·class="p"·data-group-id="9183402503-32">(</span><span·class="p"·data-group-id="9183402503-33">[</span><span·class="p">_</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="n">T</span><span·class="p"·data-group-id="9183402503-33">]</span><span[·...·truncated·by·diffoscope;·len:·111,·SHA:·e33a3742cc5bb600c0e21a6a8b363fc9e1191f18d9ecebfdd6a308d8290072d9·...·]3-32">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 208 | ····</span><span·class="nf">handle_input</span><span·class="p"·data-group-id=" | 208 | ····</span><span·class="nf">handle_input</span><span·class="p"·data-group-id="9183402503-34">(</span><span·class="n">T</span><span·class="p">,</span><span·class="w">·</span><span·class="n">State</span><span·class="p"·data-group-id="9183402503-34">)</span><span·class="p">;</span><span·class="w"> |
| 209 | </span><span·class="nf">handle_input</span><span·class="p"·data-group-id=" | 209 | </span><span·class="nf">handle_input</span><span·class="p"·data-group-id="9183402503-35">(</span><span·class="p"·data-group-id="9183402503-36">[</span><span·class="p"·data-group-id="9183402503-36">]</span><span·class="p">,</span><span·class="w">·</span><span·class="n">State</span><span·class="p"·data-group-id="9183402503-35">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 210 | ····</span><span·class="n">State</span><span·class="p">.</span></code></pre><p>Note·that·when·using·<a·href="io.html#get_chars/2"><code·class="inline">io:get_chars/2</code></a>·with·the·shell·set·in·<code·class="inline">{noshell,·raw}</code>·mode | 210 | ····</span><span·class="n">State</span><span·class="p">.</span></code></pre><p>Note·that·when·using·<a·href="io.html#get_chars/2"><code·class="inline">io:get_chars/2</code></a>·with·the·shell·set·in·<code·class="inline">{noshell,·raw}</code>·mode |
| 211 | it·will·return·as·soon·as·any·data·is·available.·The·number·of·characters | 211 | it·will·return·as·soon·as·any·data·is·available.·The·number·of·characters |
| 212 | is·the·maximum·number·that·will·be·returned.·We·use·1024·here·to·make·sure·that | 212 | is·the·maximum·number·that·will·be·returned.·We·use·1024·here·to·make·sure·that |
| 213 | we·always·get·all·the·data·in·one·read.</p><p>We·also·need·to·draw·the·selection·marker,·we·do·this·using·some·simple·drawing | 213 | we·always·get·all·the·data·in·one·read.</p><p>We·also·need·to·draw·the·selection·marker,·we·do·this·using·some·simple·drawing |
| 214 | routines.</p><pre·id="monospace-font"><code·class="makeup·erlang"·translate="no"><span·class="c1">%%·Clear/draw·the·selection·markers,·making·sure</span><span·class="w"> | 214 | routines.</p><pre·id="monospace-font"><code·class="makeup·erlang"·translate="no"><span·class="c1">%%·Clear/draw·the·selection·markers,·making·sure</span><span·class="w"> |
| 215 | </span><span·class="c1">%%·not·to·overwrite·if·a·X·or·O·exists.</span><span·class="w"> | 215 | </span><span·class="c1">%%·not·to·overwrite·if·a·X·or·O·exists.</span><span·class="w"> |
| 216 | </span><span·class="c1">%%···\b·=·Move·cursor·left</span><span·class="w"> | 216 | </span><span·class="c1">%%···\b·=·Move·cursor·left</span><span·class="w"> |
| 217 | </span><span·class="c1">%%···\e[C·=·Move·cursor·right</span><span·class="w"> | 217 | </span><span·class="c1">%%···\e[C·=·Move·cursor·right</span><span·class="w"> |
| 218 | </span><span·class="c1">%%···\n·=·Move·cursor·down</span><span·class="w"> | 218 | </span><span·class="c1">%%···\n·=·Move·cursor·down</span><span·class="w"> |
| 219 | </span><span·class="nf">clear_selection</span><span·class="p"·data-group-id=" | 219 | </span><span·class="nf">clear_selection</span><span·class="p"·data-group-id="4315618343-1">(</span><span·class="n">Pos</span><span·class="p"·data-group-id="4315618343-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 220 | ····</span><span·class="p"·data-group-id=" | 220 | ····</span><span·class="p"·data-group-id="4315618343-2">[</span><span·class="nf">set_position</span><span·class="p"·data-group-id="4315618343-3">(</span><span·class="n">Pos</span><span·class="p"·data-group-id="4315618343-3">)</span><span·class="p">,</span><span·class="w"> |
| 221 | ·····</span><span·class="s">"·······"</span><span·class="p">,</span><span·class="s">"\b\b\b\b\b\b\b\n"</span><span·class="p">,</span><span·class="w"> | 221 | ·····</span><span·class="s">"·······"</span><span·class="p">,</span><span·class="s">"\b\b\b\b\b\b\b\n"</span><span·class="p">,</span><span·class="w"> |
| 222 | ·····</span><span·class="s">"·\e[C\e[C\e[C\e[C\e[C·"</span><span·class="p">,</span><span·class="w"> | 222 | ·····</span><span·class="s">"·\e[C\e[C\e[C\e[C\e[C·"</span><span·class="p">,</span><span·class="w"> |
| 223 | ·····</span><span·class="s">"\b\b\b\b\b\b\b\n"</span><span·class="p">,</span><span·class="s">"·······"</span><span·class="p"·data-group-id=" | 223 | ·····</span><span·class="s">"\b\b\b\b\b\b\b\n"</span><span·class="p">,</span><span·class="s">"·······"</span><span·class="p"·data-group-id="4315618343-2">]</span><span·class="p">.</span><span·class="w"> |
| 224 | </span><span·class="nf">draw_selection</span><span·class="p"·data-group-id=" | 224 | </span><span·class="nf">draw_selection</span><span·class="p"·data-group-id="4315618343-4">(</span><span·class="n">Pos</span><span·class="p"·data-group-id="4315618343-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 225 | ····</span><span·class="p"·data-group-id=" | 225 | ····</span><span·class="p"·data-group-id="4315618343-5">[</span><span·class="nf">set_position</span><span·class="p"·data-group-id="4315618343-6">(</span><span·class="n">Pos</span><span·class="p"·data-group-id="4315618343-6">)</span><span·class="p">,</span><span·class="w"> |
| 226 | ·····</span><span·class="s">"┌─────┐"</span><span·class="p">,</span><span·class="s">"\b\b\b\b\b\b\b\n"</span><span·class="p">,</span><span·class="w"> | 226 | ·····</span><span·class="s">"┌─────┐"</span><span·class="p">,</span><span·class="s">"\b\b\b\b\b\b\b\n"</span><span·class="p">,</span><span·class="w"> |
| 227 | ·····</span><span·class="s">"│\e[C\e[C\e[C\e[C\e[C│"</span><span·class="p">,</span><span·class="w"> | 227 | ·····</span><span·class="s">"│\e[C\e[C\e[C\e[C\e[C│"</span><span·class="p">,</span><span·class="w"> |
| 228 | ·····</span><span·class="s">"\b\b\b\b\b\b\b\n"</span><span·class="p">,</span><span·class="s">"└─────┘"</span><span·class="p"·data-group-id=" | 228 | ·····</span><span·class="s">"\b\b\b\b\b\b\b\n"</span><span·class="p">,</span><span·class="s">"└─────┘"</span><span·class="p"·data-group-id="4315618343-5">]</span><span·class="p">.</span><span·class="w"> |
| 229 | </span><span·class="c1">%%·Set·the·cursor·position·to·be·at·the·top</span><span·class="w"> | 229 | </span><span·class="c1">%%·Set·the·cursor·position·to·be·at·the·top</span><span·class="w"> |
| 230 | </span><span·class="c1">%%·left·of·the·field·of·the·given·position</span><span·class="w"> | 230 | </span><span·class="c1">%%·left·of·the·field·of·the·given·position</span><span·class="w"> |
| 231 | </span><span·class="nf">set_position</span><span·class="p"·data-group-id=" | 231 | </span><span·class="nf">set_position</span><span·class="p"·data-group-id="4315618343-7">(</span><span·class="n">Pos</span><span·class="p"·data-group-id="4315618343-7">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 232 | ····</span><span·class="n">Row</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">6</span><span·class="w">·</span><span·class="o">+</span><span·class="w">·</span><span·class="p"·data-group-id=" | 232 | ····</span><span·class="n">Row</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">6</span><span·class="w">·</span><span·class="o">+</span><span·class="w">·</span><span·class="p"·data-group-id="4315618343-8">(</span><span·class="n">Pos</span><span·class="w">·</span><span·class="ow">div</span><span·class="w">·</span><span·class="mi">3</span><span·class="p"·data-group-id="4315618343-8">)</span><span·class="w">·</span><span·class="o">*</span><span·class="w">·</span><span·class="mi">4</span><span·class="p">,</span><span·class="w"> |
| 233 | ····</span><span·class="n">Col</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">7</span><span·class="w">·</span><span·class="o">+</span><span·class="w">·</span><span·class="p"·data-group-id=" | 233 | ····</span><span·class="n">Col</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">7</span><span·class="w">·</span><span·class="o">+</span><span·class="w">·</span><span·class="p"·data-group-id="4315618343-9">(</span><span·class="n">Pos</span><span·class="w">·</span><span·class="ow">rem</span><span·class="w">·</span><span·class="mi">3</span><span·class="p"·data-group-id="4315618343-9">)</span><span·class="w">·</span><span·class="o">*</span><span·class="w">·</span><span·class="mi">8</span><span·class="p">,</span><span·class="w"> |
| 234 | ····</span><span·class="nc">io_lib</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 234 | ····</span><span·class="nc">io_lib</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="4315618343-10">(</span><span·class="s">"\e[</span><span·class="si">~p</span><span·class="s">;</span><span·class="si">~p</span><span·class="s">H"</span><span·class="p">,</span><span·class="p"·data-group-id="4315618343-11">[</span><span·class="n">R[·...·truncated·by·diffoscope;·len:·177,·SHA:·6d8db523c449bd7417e2eeab030c8a6f28ac0a11f5440ce5e1b7cf7dc1d1e6c6·...·]3-10">)</span><span·class="p">.</span></code></pre><p>Now·we·have·a·program·where·we·can·move·the·marker·around·the·board. |
| 235 | To·complete·the·game·we·need·to·add·some·state·so·that·we·know·which | 235 | To·complete·the·game·we·need·to·add·some·state·so·that·we·know·which |
| 236 | squares·are·marked·and·whos·turn·it·is.·You·can·find·the·final·solution | 236 | squares·are·marked·and·whos·turn·it·is.·You·can·find·the·final·solution |
| 237 | in·<a·href="assets/tic-tac-toe.es">tic-tac-toe.es</a>.</p> | 237 | in·<a·href="assets/tic-tac-toe.es">tic-tac-toe.es</a>.</p> |
| 238 | </div> | 238 | </div> |
| 239 | <div·class="bottom-actions"·id="bottom-actions"> | 239 | <div·class="bottom-actions"·id="bottom-actions"> |
| 240 | ··<div·class="bottom-actions-item"> | 240 | ··<div·class="bottom-actions-item"> |
| Offset 285, 15 lines modified | Offset 285, 15 lines modified | ||
| 285 | ······<p·class="built-using"> | 285 | ······<p·class="built-using"> |
| 286 | ········Built·using | 286 | ········Built·using |
| 287 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 287 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 288 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 288 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 289 | ······</p> | 289 | ······</p> |
| 290 | <p>Copyright·©·1996-202 | 290 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 291 | ····</footer> | 291 | ····</footer> |
| 292 | ··</div> | 292 | ··</div> |
| 293 | </main> | 293 | </main> |
| 294 | </div> | 294 | </div> |
| 295 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 295 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 296 | ··<script> | 296 | ··<script> |
| 297 | ··let·initialized·=·false; | 297 | ··let·initialized·=·false; |
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| 142 | <a·href="../../../../erts-16.0/doc/html/time_correction.html"><em>Time·and·Time·Correction·in·Erlang</em></a> | 142 | <a·href="../../../../erts-16.0/doc/html/time_correction.html"><em>Time·and·Time·Correction·in·Erlang</em></a> |
| 143 | ERTS·User's·guide.</p><h2·id="module-examples"·class="section-heading"> | 143 | ERTS·User's·guide.</p><h2·id="module-examples"·class="section-heading"> |
| 144 | ··<a·href="#module-examples"·class="hover-link"> | 144 | ··<a·href="#module-examples"·class="hover-link"> |
| 145 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 145 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 146 | ··</a> | 146 | ··</a> |
| 147 | ··<span·class="text">Examples</span> | 147 | ··<span·class="text">Examples</span> |
| 148 | </h2> | 148 | </h2> |
| 149 | <p><em>Example·1</em></p><p>The·following·example·shows·how·to·print·"Hello·World!"·in·5·seconds:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">timer</span><span·class="p">:</span><span·class="nf">apply_after</span><span·class="p"·data-group-id=" | 149 | <p><em>Example·1</em></p><p>The·following·example·shows·how·to·print·"Hello·World!"·in·5·seconds:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">timer</span><span·class="p">:</span><span·class="nf">apply_after</span><span·class="p"·data-group-id="9329286903-1">(</span><span·class="mi">5000</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">io</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">format</span><span·class="p">,</span><span·class="w">·</span><span·[·...·truncated·by·diffoscope;·len:·440,·SHA:·eed92a45f67e860649270144c482b83118230c5d4ca4ced4e3d14427e5adeba4·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 150 | </span><span·class="p"·data-group-id=" | 150 | </span><span·class="p"·data-group-id="9329286903-4">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="n">TRef</span><span·class="p"·data-group-id="9329286903-4">}</span><span·class="w"> |
| 151 | </span><span·class="n">Hello</span><span·class="w">·</span><span·class="n">World</span><span·class="o">!</span></code></pre><p><em>Example·2</em></p><p>The·following·example·shows·a·process·performing·a·certain·action,·and·if·this | 151 | </span><span·class="n">Hello</span><span·class="w">·</span><span·class="n">World</span><span·class="o">!</span></code></pre><p><em>Example·2</em></p><p>The·following·example·shows·a·process·performing·a·certain·action,·and·if·this |
| 152 | action·is·not·completed·within·a·certain·limit,·the·process·is·killed:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Pid</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">spawn</span><span·class="p"·data-group-id=" | 152 | action·is·not·completed·within·a·certain·limit,·the·process·is·killed:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Pid</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">spawn</span><span·class="p"·data-group-id="9740661071-1">(</span><span·class="ss">mod</span><span·class="p">,</span><span·class="w">·</span><span·class="k">fun</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9740661071-2">[</span><span·class="ss">foo</span><span[·...·truncated·by·diffoscope;·len:·164,·SHA:·5836f1172571e7afb5d48a67bd659f149e1df8e1b74a29242a513572c695fc77·...·]-1">)</span><span·class="p">,</span><span·class="w"> |
| 153 | </span><span·class="c1">%%·If·pid·is·not·finished·in·10·seconds,·kill·him</span><span·class="w"> | 153 | </span><span·class="c1">%%·If·pid·is·not·finished·in·10·seconds,·kill·him</span><span·class="w"> |
| 154 | </span><span·class="p"·data-group-id=" | 154 | </span><span·class="p"·data-group-id="9740661071-3">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">R</span><span·class="p"·data-group-id="9740661071-3">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class[·...·truncated·by·diffoscope;·len:·460,·SHA:·87c72f4067dc0c70849581349b7533415dbd3a5565800565e52b9a675d26fce6·...·]-4">)</span><span·class="p">,</span><span·class="w"> |
| 155 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> | 155 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> |
| 156 | </span><span·class="c1">%%·We·change·our·mind...</span><span·class="w"> | 156 | </span><span·class="c1">%%·We·change·our·mind...</span><span·class="w"> |
| 157 | </span><span·class="nc">timer</span><span·class="p">:</span><span·class="nf">cancel</span><span·class="p"·data-group-id=" | 157 | </span><span·class="nc">timer</span><span·class="p">:</span><span·class="nf">cancel</span><span·class="p"·data-group-id="9740661071-6">(</span><span·class="n">R</span><span·class="p"·data-group-id="9740661071-6">)</span><span·class="p">,</span><span·class="w"> |
| 158 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span></code></pre><h2·id="module-notes"·class="section-heading"> | 158 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span></code></pre><h2·id="module-notes"·class="section-heading"> |
| 159 | ··<a·href="#module-notes"·class="hover-link"> | 159 | ··<a·href="#module-notes"·class="hover-link"> |
| 160 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 160 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 161 | ··</a> | 161 | ··</a> |
| 162 | ··<span·class="text">Notes</span> | 162 | ··<span·class="text">Notes</span> |
| 163 | </h2> | 163 | </h2> |
| 164 | <p>A·timer·can·always·be·removed·by·calling·<a·href="#cancel/1"><code·class="inline">cancel/1</code></a>.</p><p>An·interval·timer,·that·is,·a·timer·created·by·evaluating·any·of·the·functions | 164 | <p>A·timer·can·always·be·removed·by·calling·<a·href="#cancel/1"><code·class="inline">cancel/1</code></a>.</p><p>An·interval·timer,·that·is,·a·timer·created·by·evaluating·any·of·the·functions |
| Offset 177, 28 lines modified | Offset 177, 28 lines modified | ||
| 177 | process,·and·therefore·calls·to·<a·href="../../../../erts-16.0/doc/html/erlang.html#self/0"><code·class="inline">self/0</code></a>·in·those·functions·will·return·the·Pid | 177 | process,·and·therefore·calls·to·<a·href="../../../../erts-16.0/doc/html/erlang.html#self/0"><code·class="inline">self/0</code></a>·in·those·functions·will·return·the·Pid |
| 178 | of·this·process,·which·is·different·from·the·process·that·called | 178 | of·this·process,·which·is·different·from·the·process·that·called |
| 179 | <code·class="inline">timer:apply_*</code>.</p><p><em>Example</em></p><p>In·the·following·example,·the·intention·is·to·set·a·timer·to·execute·a·function | 179 | <code·class="inline">timer:apply_*</code>.</p><p><em>Example</em></p><p>In·the·following·example,·the·intention·is·to·set·a·timer·to·execute·a·function |
| 180 | after·1·second,·which·performs·a·fictional·task,·and·then·wants·to·inform·the | 180 | after·1·second,·which·performs·a·fictional·task,·and·then·wants·to·inform·the |
| 181 | process·which·set·the·timer·about·its·completion,·by·sending·it·a·<code·class="inline">done</code> | 181 | process·which·set·the·timer·about·its·completion,·by·sending·it·a·<code·class="inline">done</code> |
| 182 | message.</p><p>Using·<a·href="../../../../erts-16.0/doc/html/erlang.html#self/0"><code·class="inline">self/0</code></a>·<em>inside</em>·the·timed·function,·the·code·below·does·not·work·as | 182 | message.</p><p>Using·<a·href="../../../../erts-16.0/doc/html/erlang.html#self/0"><code·class="inline">self/0</code></a>·<em>inside</em>·the·timed·function,·the·code·below·does·not·work·as |
| 183 | intended.·The·task·gets·done,·but·the·<code·class="inline">done</code>·message·gets·sent·to·the·wrong | 183 | intended.·The·task·gets·done,·but·the·<code·class="inline">done</code>·message·gets·sent·to·the·wrong |
| 184 | process·and·is·lost.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">timer</span><span·class="p">:</span><span·class="nf">apply_after</span><span·class="p"·data-group-id=" | 184 | process·and·is·lost.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">timer</span><span·class="p">:</span><span·class="nf">apply_after</span><span·class="p"·data-group-id="9277064374-1">(</span><span·class="mi">1000</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id="9277064374-2">(</span><span·class="p"·data-group-id="9277064374-2">)</span><span·class="w">·</span><[·...·truncated·by·diffoscope;·len:·566,·SHA:·ab37c8b404622c8a8c3261a9b47d48155f4fbb0f85dfa93df0795e62aa5b7d5f·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 185 | </span><span·class="p"·data-group-id=" | 185 | </span><span·class="p"·data-group-id="9277064374-5">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="n">TRef</span><span·class="p"·data-group-id="9277064374-5">}</span><span·class="gp·unselectable"> |
| 186 | 2>·</span><span·class="k">receive</span><span·class="w">·</span><span·class="ss">done</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">done</span><span·class="w">·</span><span·class="k">after</span><span·class="w">·</span><span·class="mi">5000</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">timeout</span><span·class="w">·</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> | 186 | 2>·</span><span·class="k">receive</span><span·class="w">·</span><span·class="ss">done</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">done</span><span·class="w">·</span><span·class="k">after</span><span·class="w">·</span><span·class="mi">5000</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">timeout</span><span·class="w">·</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> |
| 187 | </span><span·class="c1">%%·...·5s·pass...</span><span·class="w"> | 187 | </span><span·class="c1">%%·...·5s·pass...</span><span·class="w"> |
| 188 | </span><span·class="ss">timeout</span></code></pre><p>The·code·below·calls·<a·href="../../../../erts-16.0/doc/html/erlang.html#self/0"><code·class="inline">self/0</code></a>·in·the·process·which·sets·the·timer·and·assigns·it | 188 | </span><span·class="ss">timeout</span></code></pre><p>The·code·below·calls·<a·href="../../../../erts-16.0/doc/html/erlang.html#self/0"><code·class="inline">self/0</code></a>·in·the·process·which·sets·the·timer·and·assigns·it |
| 189 | to·a·variable,·which·is·then·used·in·the·function·to·send·the·<code·class="inline">done</code>·message·to, | 189 | to·a·variable,·which·is·then·used·in·the·function·to·send·the·<code·class="inline">done</code>·message·to, |
| 190 | and·so·works·as·intended.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">Target</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">self</span><span·class="p"·data-group-id=" | 190 | and·so·works·as·intended.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">Target</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">self</span><span·class="p"·data-group-id="8898648266-1">(</span><span·class="p"·data-group-id="8898648266-1">)</span><span·class="w"> |
| 191 | </span><span·class="o"><</span><span·class="mf">0.82</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="gp·unselectable"> | 191 | </span><span·class="o"><</span><span·class="mf">0.82</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="gp·unselectable"> |
| 192 | 2>·</span><span·class="nc">timer</span><span·class="p">:</span><span·class="nf">apply_after</span><span·class="p"·data-group-id=" | 192 | 2>·</span><span·class="nc">timer</span><span·class="p">:</span><span·class="nf">apply_after</span><span·class="p"·data-group-id="8898648266-2">(</span><span·class="mi">1000</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id="8898648266-3">(</span><span·class="p"·data-group-id="8898648266-3">)</span><span·class="w">·</span><[·...·truncated·by·diffoscope;·len:·460,·SHA:·ece01ec675beadb537c1db842618ef02d1f7c81da6fdcf4b4085aaeb609d1a3e·...·]6-2">)</span><span·class="p">.</span><span·class="w"> |
| 193 | </span><span·class="p"·data-group-id=" | 193 | </span><span·class="p"·data-group-id="8898648266-5">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="n">TRef</span><span·class="p"·data-group-id="8898648266-5">}</span><span·class="gp·unselectable"> |
| 194 | 3>·</span><span·class="k">receive</span><span·class="w">·</span><span·class="ss">done</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">done</span><span·class="w">·</span><span·class="k">after</span><span·class="w">·</span><span·class="mi">5000</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">timeout</span><span·class="w">·</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> | 194 | 3>·</span><span·class="k">receive</span><span·class="w">·</span><span·class="ss">done</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">done</span><span·class="w">·</span><span·class="k">after</span><span·class="w">·</span><span·class="mi">5000</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">timeout</span><span·class="w">·</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> |
| 195 | </span><span·class="c1">%%·...·1s·passes...</span><span·class="w"> | 195 | </span><span·class="c1">%%·...·1s·passes...</span><span·class="w"> |
| 196 | </span><span·class="ss">done</span></code></pre><p>Another·option·is·to·pass·the·message·target·as·a·parameter·to·the·function.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">timer</span><span·class="p">:</span><span·class="nf">apply_after</span><span·class="p"·data-group-id=" | 196 | </span><span·class="ss">done</span></code></pre><p>Another·option·is·to·pass·the·message·target·as·a·parameter·to·the·function.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">timer</span><span·class="p">:</span><span·class="nf">apply_after</span><span·class="p"·data-group-id="9806897819-1">(</span><span·class="mi">1000</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id="9806897819-2">(</span><span·class="n">Target</span><span·class="p"·data-group-id="9806897819-2">)</s[·...·truncated·by·diffoscope;·len:·778,·SHA:·8523a3ccbf35290c493aea9a500f065ccb6a30302756378ea6b33fab10022653·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 197 | </span><span·class="p"·data-group-id=" | 197 | </span><span·class="p"·data-group-id="9806897819-6">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="n">TRef</span><span·class="p"·data-group-id="9806897819-6">}</span><span·class="gp·unselectable"> |
| 198 | 2>·</span><span·class="k">receive</span><span·class="w">·</span><span·class="ss">done</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">done</span><span·class="w">·</span><span·class="k">after</span><span·class="w">·</span><span·class="mi">5000</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">timeout</span><span·class="w">·</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> | 198 | 2>·</span><span·class="k">receive</span><span·class="w">·</span><span·class="ss">done</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">done</span><span·class="w">·</span><span·class="k">after</span><span·class="w">·</span><span·class="mi">5000</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">timeout</span><span·class="w">·</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> |
| 199 | </span><span·class="c1">%%·...·1s·passes...</span><span·class="w"> | 199 | </span><span·class="c1">%%·...·1s·passes...</span><span·class="w"> |
| 200 | </span><span·class="ss">done</span></code></pre> | 200 | </span><span·class="ss">done</span></code></pre> |
| 201 | ····</section> | 201 | ····</section> |
| 202 | </div> | 202 | </div> |
| Offset 1575, 15 lines modified | Offset 1575, 15 lines modified | ||
| 1575 | ······<p·class="built-using"> | 1575 | ······<p·class="built-using"> |
| 1576 | ········Built·using | 1576 | ········Built·using |
| 1577 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1577 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1578 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1578 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1579 | ······</p> | 1579 | ······</p> |
| 1580 | <p>Copyright·©·1996-202 | 1580 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1581 | ····</footer> | 1581 | ····</footer> |
| 1582 | ··</div> | 1582 | ··</div> |
| 1583 | </main> | 1583 | </main> |
| 1584 | </div> | 1584 | </div> |
| 1585 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1585 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1586 | ··<script> | 1586 | ··<script> |
| 1587 | ··let·initialized·=·false; | 1587 | ··let·initialized·=·false; |
| Offset 1031, 21 lines modified | Offset 1031, 21 lines modified | ||
| 1031 | binaries·in·other·ways·are·split·on·non-UTF·character·boundaries.·An | 1031 | binaries·in·other·ways·are·split·on·non-UTF·character·boundaries.·An |
| 1032 | <code·class="inline">incomplete</code>·tuple·is·then·returned·instead·of·the·<code·class="inline">error</code>·tuple.·It·consists·of | 1032 | <code·class="inline">incomplete</code>·tuple·is·then·returned·instead·of·the·<code·class="inline">error</code>·tuple.·It·consists·of |
| 1033 | the·same·parts·as·the·<code·class="inline">error</code>·tuple,·but·the·tag·is·<code·class="inline">incomplete</code>·instead·of | 1033 | the·same·parts·as·the·<code·class="inline">error</code>·tuple,·but·the·tag·is·<code·class="inline">incomplete</code>·instead·of |
| 1034 | <code·class="inline">error</code>·and·the·last·element·is·always·guaranteed·to·be·a·binary·consisting·of | 1034 | <code·class="inline">error</code>·and·the·last·element·is·always·guaranteed·to·be·a·binary·consisting·of |
| 1035 | the·first·part·of·a·(so·far)·valid·UTF·character.</p><p>If·one·UTF·character·is·split·over·two·consecutive·binaries·in·the·<code·class="inline">Data</code>,·the | 1035 | the·first·part·of·a·(so·far)·valid·UTF·character.</p><p>If·one·UTF·character·is·split·over·two·consecutive·binaries·in·the·<code·class="inline">Data</code>,·the |
| 1036 | conversion·succeeds.·This·means·that·a·character·can·be·decoded·from·a·range·of | 1036 | conversion·succeeds.·This·means·that·a·character·can·be·decoded·from·a·range·of |
| 1037 | binaries·as·long·as·the·whole·range·is·specified·as·input·without·errors | 1037 | binaries·as·long·as·the·whole·range·is·specified·as·input·without·errors |
| 1038 | occurring.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">decode_data</span><span·class="p"·data-group-id=" | 1038 | occurring.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">decode_data</span><span·class="p"·data-group-id="7559520050-1">(</span><span·class="n">Data</span><span·class="p"·data-group-id="7559520050-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 1039 | ···</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">unicode</span><span·class="p">:</span><span·class="nf">characters_to_list</span><span·class="p"·data-group-id=" | 1039 | ···</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">unicode</span><span·class="p">:</span><span·class="nf">characters_to_list</span><span·class="p"·data-group-id="7559520050-2">(</span><span·class="n">Data</span><span·class="p">,</span><span·class="ss">unicode</span><span·class="p"·data-group-id="7559520050-2">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 1040 | ······</span><span·class="p"·data-group-id=" | 1040 | ······</span><span·class="p"·data-group-id="7559520050-3">{</span><span·class="ss">incomplete</span><span·class="p">,</span><span·class="n">Encoded</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Rest</span><span·class="p"·data-group-id="7559520050-3">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 1041 | ············</span><span·class="n">More</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">get_some_more_data</span><span·class="p"·data-group-id=" | 1041 | ············</span><span·class="n">More</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">get_some_more_data</span><span·class="p"·data-group-id="7559520050-4">(</span><span·class="p"·data-group-id="7559520050-4">)</span><span·class="p">,</span><span·class="w"> |
| 1042 | ············</span><span·class="n">Encoded</span><span·class="w">·</span><span·class="o">++</span><span·class="w">·</span><span·class="nf">decode_data</span><span·class="p"·data-group-id=" | 1042 | ············</span><span·class="n">Encoded</span><span·class="w">·</span><span·class="o">++</span><span·class="w">·</span><span·class="nf">decode_data</span><span·class="p"·data-group-id="7559520050-5">(</span><span·class="p"·data-group-id="7559520050-6">[</span><span·class="n">Rest</span><span·class="p">,</span><span·class="w">·</span><span·class="n">More</span><span·class="p"·data-group-id="7559520050-6">]</span><span·class="p"·data-group[·...·truncated·by·diffoscope;·len:·15,·SHA:·937392be92a6fd94f0a622bcf7d2c9d9104cbcb0db49d1d863ca04402a441d2f·...·]-5">)</span><span·class="p">;</span><span·class="w"> |
| 1043 | ······</span><span·class="p"·data-group-id=" | 1043 | ······</span><span·class="p"·data-group-id="7559520050-7">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="n">Encoded</span><span·class="p">,</span><span·class="n">Rest</span><span·class="p"·data-group-id="7559520050-7">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 1044 | ············</span><span·class="nf">handle_error</span><span·class="p"·data-group-id=" | 1044 | ············</span><span·class="nf">handle_error</span><span·class="p"·data-group-id="7559520050-8">(</span><span·class="n">Encoded</span><span·class="p">,</span><span·class="n">Rest</span><span·class="p"·data-group-id="7559520050-8">)</span><span·class="p">;</span><span·class="w"> |
| 1045 | ······</span><span·class="n">List</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 1045 | ······</span><span·class="n">List</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 1046 | ············</span><span·class="n">List</span><span·class="w"> | 1046 | ············</span><span·class="n">List</span><span·class="w"> |
| 1047 | ···</span><span·class="k">end</span><span·class="p">.</span></code></pre><p>However,·bit·strings·that·are·not·whole·bytes·are·not·allowed,·so·a·UTF | 1047 | ···</span><span·class="k">end</span><span·class="p">.</span></code></pre><p>However,·bit·strings·that·are·not·whole·bytes·are·not·allowed,·so·a·UTF |
| 1048 | character·must·be·split·along·8-bit·boundaries·to·ever·be·decoded.</p><p>A·<code·class="inline">badarg</code>·exception·is·thrown·for·the·following·cases:</p><ul><li>Any·parameters·are·of·the·wrong·type.</li><li>The·list·structure·is·invalid·(a·number·as·tail).</li><li>The·binaries·do·not·contain·whole·bytes·(bit·strings).</li></ul> | 1048 | character·must·be·split·along·8-bit·boundaries·to·ever·be·decoded.</p><p>A·<code·class="inline">badarg</code>·exception·is·thrown·for·the·following·cases:</p><ul><li>Any·parameters·are·of·the·wrong·type.</li><li>The·list·structure·is·invalid·(a·number·as·tail).</li><li>The·binaries·do·not·contain·whole·bytes·(bit·strings).</li></ul> |
| 1049 | ··</section> | 1049 | ··</section> |
| 1050 | </section> | 1050 | </section> |
| 1051 | <section·class="detail"·id="characters_to_nfc_binary/1"> | 1051 | <section·class="detail"·id="characters_to_nfc_binary/1"> |
| Offset 1070, 16 lines modified | Offset 1070, 16 lines modified | ||
| 1070 | ······<div·class="specs"> | 1070 | ······<div·class="specs"> |
| 1071 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·characters_to_nfc_binary(<a·href="#t:chardata/0">chardata</a>())·->·<a·href="#t:unicode_binary/0">unicode_binary</a>()·|·{error,·<a·href="#t:unicode_binary/0">unicode_binary</a>(),·<a·href="#t:chardata/0">chardata</a>()}.</pre> | 1071 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·characters_to_nfc_binary(<a·href="#t:chardata/0">chardata</a>())·->·<a·href="#t:unicode_binary/0">unicode_binary</a>()·|·{error,·<a·href="#t:unicode_binary/0">unicode_binary</a>(),·<a·href="#t:chardata/0">chardata</a>()}.</pre> |
| 1072 | ······</div> | 1072 | ······</div> |
| 1073 | <p>Converts·a·possibly·deep·list·of·characters·and·binaries·into·a·Normalized·Form | 1073 | <p>Converts·a·possibly·deep·list·of·characters·and·binaries·into·a·Normalized·Form |
| 1074 | of·canonical·equivalent·Composed·characters·according·to·the·Unicode·standard.</p><p>Any·binaries·in·the·input·must·be·encoded·with·utf8·encoding.</p><p>The·result·is·an·utf8·encoded·binary.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">4>·</span><span·class="nc">unicode</span><span·class="p">:</span><span·class="nf">characters_to_nfc_binary</span><span·class="p"·data-group-id="8 | 1074 | of·canonical·equivalent·Composed·characters·according·to·the·Unicode·standard.</p><p>Any·binaries·in·the·input·must·be·encoded·with·utf8·encoding.</p><p>The·result·is·an·utf8·encoded·binary.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">4>·</span><span·class="nc">unicode</span><span·class="p">:</span><span·class="nf">characters_to_nfc_binary</span><span·class="p"·data-group-id="9897509638-1">(</span><span·class="p"·data-group-id="9897509638-2">[</span><span·class="p"·data-group-id="9897509638-3"><<</span><span·class="s">"abc..a"</span><span·class="p"·data-group-id="9897509638-3">>></span><span·class="p">,</s[·...·truncated·by·diffoscope;·len:·645,·SHA:·e98ec3f9b2d2cf340b797e3a9b331fbefd14a4f6579200b83e23576347d62a5a·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 1075 | </span><span·class="p"·data-group-id="8 | 1075 | </span><span·class="p"·data-group-id="9897509638-7"><<</span><span·class="s">"abc..åäö"</span><span·class="o">/</span><span·class="ss">utf8</span><span·class="p"·data-group-id="9897509638-7">>></span></code></pre> |
| 1076 | ··</section> | 1076 | ··</section> |
| 1077 | </section> | 1077 | </section> |
| 1078 | <section·class="detail"·id="characters_to_nfc_list/1"> | 1078 | <section·class="detail"·id="characters_to_nfc_list/1"> |
| 1079 | ··<div·class="detail-header"> | 1079 | ··<div·class="detail-header"> |
| 1080 | ····<a·href="#characters_to_nfc_list/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 1080 | ····<a·href="#characters_to_nfc_list/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 1081 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 1081 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 1100, 15 lines modified | Offset 1100, 15 lines modified | ||
| 1100 | ······<div·class="specs"> | 1100 | ······<div·class="specs"> |
| 1101 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·characters_to_nfc_list(<a·href="#t:chardata/0">chardata</a>())·->·[<a·href="../../../../erts-16.0/doc/html/erlang.html#t:char/0">char</a>()]·|·{error,·[<a·href="../../../../erts-16.0/doc/html/erlang.html#t:char/0">char</a>()],·<a·href="#t:chardata/0">chardata</a>()}.</pre> | 1101 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·characters_to_nfc_list(<a·href="#t:chardata/0">chardata</a>())·->·[<a·href="../../../../erts-16.0/doc/html/erlang.html#t:char/0">char</a>()]·|·{error,·[<a·href="../../../../erts-16.0/doc/html/erlang.html#t:char/0">char</a>()],·<a·href="#t:chardata/0">chardata</a>()}.</pre> |
| 1102 | ······</div> | 1102 | ······</div> |
| 1103 | <p>Converts·a·possibly·deep·list·of·characters·and·binaries·into·a·Normalized·Form | 1103 | <p>Converts·a·possibly·deep·list·of·characters·and·binaries·into·a·Normalized·Form |
| 1104 | of·canonical·equivalent·Composed·characters·according·to·the·Unicode·standard.</p><p>Any·binaries·in·the·input·must·be·encoded·with·utf8·encoding.</p><p>The·result·is·a·list·of·characters.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">3>·</span><span·class="nc">unicode</span><span·class="p">:</span><span·class="nf">characters_to_nfc_list</span><span·class="p"·data-group-id=" | 1104 | of·canonical·equivalent·Composed·characters·according·to·the·Unicode·standard.</p><p>Any·binaries·in·the·input·must·be·encoded·with·utf8·encoding.</p><p>The·result·is·a·list·of·characters.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">3>·</span><span·class="nc">unicode</span><span·class="p">:</span><span·class="nf">characters_to_nfc_list</span><span·class="p"·data-group-id="9167295451-1">(</span><span·class="p"·data-group-id="9167295451-2">[</span><span·class="p"·data-group-id="9167295451-3"><<</span><span·class="s">"abc..a"</span><span·class="p"·data-group-id="9167295451-3">>></span><span·class="p">,</s[·...·truncated·by·diffoscope;·len:·645,·SHA:·502d88f71da979a4fd4ec87152627be04e95b5608d195736067fb01d5b08a283·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 1105 | </span><span·class="s">"abc..åäö"</span></code></pre> | 1105 | </span><span·class="s">"abc..åäö"</span></code></pre> |
| 1106 | ··</section> | 1106 | ··</section> |
| 1107 | </section> | 1107 | </section> |
| 1108 | <section·class="detail"·id="characters_to_nfd_binary/1"> | 1108 | <section·class="detail"·id="characters_to_nfd_binary/1"> |
| 1109 | ··<div·class="detail-header"> | 1109 | ··<div·class="detail-header"> |
| 1110 | ····<a·href="#characters_to_nfd_binary/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 1110 | ····<a·href="#characters_to_nfd_binary/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| Offset 1130, 16 lines modified | Offset 1130, 16 lines modified | ||
| 1130 | ······<div·class="specs"> | 1130 | ······<div·class="specs"> |
| 1131 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·characters_to_nfd_binary(<a·href="#t:chardata/0">chardata</a>())·->·<a·href="#t:unicode_binary/0">unicode_binary</a>()·|·{error,·<a·href="#t:unicode_binary/0">unicode_binary</a>(),·<a·href="#t:chardata/0">chardata</a>()}.</pre> | 1131 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·characters_to_nfd_binary(<a·href="#t:chardata/0">chardata</a>())·->·<a·href="#t:unicode_binary/0">unicode_binary</a>()·|·{error,·<a·href="#t:unicode_binary/0">unicode_binary</a>(),·<a·href="#t:chardata/0">chardata</a>()}.</pre> |
| 1132 | ······</div> | 1132 | ······</div> |
| 1133 | <p>Converts·a·possibly·deep·list·of·characters·and·binaries·into·a·Normalized·Form | 1133 | <p>Converts·a·possibly·deep·list·of·characters·and·binaries·into·a·Normalized·Form |
| 1134 | of·canonical·equivalent·Decomposed·characters·according·to·the·Unicode·standard.</p><p>Any·binaries·in·the·input·must·be·encoded·with·utf8·encoding.</p><p>The·result·is·an·utf8·encoded·binary.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">2>·</span><span·class="nc">unicode</span><span·class="p">:</span><span·class="nf">characters_to_nfd_binary</span><span·class="p"·data-group-id=" | 1134 | of·canonical·equivalent·Decomposed·characters·according·to·the·Unicode·standard.</p><p>Any·binaries·in·the·input·must·be·encoded·with·utf8·encoding.</p><p>The·result·is·an·utf8·encoded·binary.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">2>·</span><span·class="nc">unicode</span><span·class="p">:</span><span·class="nf">characters_to_nfd_binary</span><span·class="p"·data-group-id="0094041389-1">(</span><span·class="s">"abc..åäö"</span><span·class="p"·data-group-id="0094041389-1">)</span><span·class="p">.</span><span·class="w"> |
| 1135 | </span><span·class="p"·data-group-id=" | 1135 | </span><span·class="p"·data-group-id="0094041389-2"><<</span><span·class="mi">97</span><span·class="p">,</span><span·class="mi">98</span><span·class="p">,</span><span·class="mi">99</span><span·class="p">,</span><span·class="mi">46</span><span·class="p">,</span><span·class="mi">46</span><[·...·truncated·by·diffoscope;·len:·497,·SHA:·09f90346415ba91a07cb896a82f623d187241cd5401e536be5dc2f0217f9a7f2·...·]-2">>></span></code></pre> |
| 1136 | ··</section> | 1136 | ··</section> |
| 1137 | </section> | 1137 | </section> |
| 1138 | <section·class="detail"·id="characters_to_nfd_list/1"> | 1138 | <section·class="detail"·id="characters_to_nfd_list/1"> |
| 1139 | ··<div·class="detail-header"> | 1139 | ··<div·class="detail-header"> |
| 1140 | ····<a·href="#characters_to_nfd_list/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 1140 | ····<a·href="#characters_to_nfd_list/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 1141 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 1141 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 1160, 16 lines modified | Offset 1160, 16 lines modified | ||
| 1160 | ······<div·class="specs"> | 1160 | ······<div·class="specs"> |
| 1161 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·characters_to_nfd_list(<a·href="#t:chardata/0">chardata</a>())·->·[<a·href="../../../../erts-16.0/doc/html/erlang.html#t:char/0">char</a>()]·|·{error,·[<a·href="../../../../erts-16.0/doc/html/erlang.html#t:char/0">char</a>()],·<a·href="#t:chardata/0">chardata</a>()}.</pre> | 1161 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·characters_to_nfd_list(<a·href="#t:chardata/0">chardata</a>())·->·[<a·href="../../../../erts-16.0/doc/html/erlang.html#t:char/0">char</a>()]·|·{error,·[<a·href="../../../../erts-16.0/doc/html/erlang.html#t:char/0">char</a>()],·<a·href="#t:chardata/0">chardata</a>()}.</pre> |
| 1162 | ······</div> | 1162 | ······</div> |
| 1163 | <p>Converts·a·possibly·deep·list·of·characters·and·binaries·into·a·Normalized·Form | 1163 | <p>Converts·a·possibly·deep·list·of·characters·and·binaries·into·a·Normalized·Form |
| 1164 | of·canonical·equivalent·Decomposed·characters·according·to·the·Unicode·standard.</p><p>Any·binaries·in·the·input·must·be·encoded·with·utf8·encoding.</p><p>The·result·is·a·list·of·characters.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">unicode</span><span·class="p">:</span><span·class="nf">characters_to_nfd_list</span><span·class="p"·data-group-id=" | 1164 | of·canonical·equivalent·Decomposed·characters·according·to·the·Unicode·standard.</p><p>Any·binaries·in·the·input·must·be·encoded·with·utf8·encoding.</p><p>The·result·is·a·list·of·characters.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">unicode</span><span·class="p">:</span><span·class="nf">characters_to_nfd_list</span><span·class="p"·data-group-id="4199032798-1">(</span><span·class="s">"abc..åäö"</span><span·class="p"·data-group-id="4199032798-1">)</span><span·class="p">.</span><span·class="w"> |
| 1165 | </span><span·class="p"·data-group-id=" | 1165 | </span><span·class="p"·data-group-id="4199032798-2">[</span><span·class="mi">97</span><span·class="p">,</span><span·class="mi">98</span><span·class="p">,</span><span·class="mi">99</span><span·class="p">,</span><span·class="mi">46</span><span·class="p">,</span><span·class="mi">46</span><span·cl[·...·truncated·by·diffoscope;·len:·337,·SHA:·feb1051c02fc070b39fee40918f2c9e8e74f4d5eec23ead46613a834d81fd81a·...·]-2">]</span></code></pre> |
| 1166 | ··</section> | 1166 | ··</section> |
| 1167 | </section> | 1167 | </section> |
| 1168 | <section·class="detail"·id="characters_to_nfkc_binary/1"> | 1168 | <section·class="detail"·id="characters_to_nfkc_binary/1"> |
| 1169 | ··<div·class="detail-header"> | 1169 | ··<div·class="detail-header"> |
| 1170 | ····<a·href="#characters_to_nfkc_binary/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 1170 | ····<a·href="#characters_to_nfkc_binary/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 1171 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 1171 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 1190, 16 lines modified | Offset 1190, 16 lines modified | ||
| 1190 | ······<div·class="specs"> | 1190 | ······<div·class="specs"> |
| 1191 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·characters_to_nfkc_binary(<a·href="#t:chardata/0">chardata</a>())·->·<a·href="#t:unicode_binary/0">unicode_binary</a>()·|·{error,·<a·href="#t:unicode_binary/0">unicode_binary</a>(),·<a·href="#t:chardata/0">chardata</a>()}.</pre> | 1191 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·characters_to_nfkc_binary(<a·href="#t:chardata/0">chardata</a>())·->·<a·href="#t:unicode_binary/0">unicode_binary</a>()·|·{error,·<a·href="#t:unicode_binary/0">unicode_binary</a>(),·<a·href="#t:chardata/0">chardata</a>()}.</pre> |
| 1192 | ······</div> | 1192 | ······</div> |
| 1193 | <p>Converts·a·possibly·deep·list·of·characters·and·binaries·into·a·Normalized·Form | 1193 | <p>Converts·a·possibly·deep·list·of·characters·and·binaries·into·a·Normalized·Form |
| 1194 | of·compatibly·equivalent·Composed·characters·according·to·the·Unicode·standard.</p><p>Any·binaries·in·the·input·must·be·encoded·with·utf8·encoding.</p><p>The·result·is·an·utf8·encoded·binary.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">4>·</span><span·class="nc">unicode</span><span·class="p">:</span><span·class="nf">characters_to_nfkc_binary</span><span·class="p"·data-group-id=" | 1194 | of·compatibly·equivalent·Composed·characters·according·to·the·Unicode·standard.</p><p>Any·binaries·in·the·input·must·be·encoded·with·utf8·encoding.</p><p>The·result·is·an·utf8·encoded·binary.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">4>·</span><span·class="nc">unicode</span><span·class="p">:</span><span·class="nf">characters_to_nfkc_binary</span><span·class="p"·data-group-id="1509874530-1">(</span><span·class="p"·data-group-id="1509874530-2">[</span><span·class="p"·data-group-id="1509874530-3"><<</span><span·class="s">"abc..a"</span><span·class="p"·data-group-id="1509874530-3">>></span><span·class="p">,</s[·...·truncated·by·diffoscope;·len:·857,·SHA:·6608711f5af12b132b24f4d9d817e0e7bf4655a407e2f6de95e48061e6ec5240·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 1195 | </span><span·class="p"·data-group-id=" | 1195 | </span><span·class="p"·data-group-id="1509874530-8"><<</span><span·class="s">"abc..åäö32"</span><span·class="o">/</span><span·class="ss">utf8</span><span·class="p"·data-group-id="1509874530-8">>></span></code></pre> |
| 1196 | ··</section> | 1196 | ··</section> |
| 1197 | </section> | 1197 | </section> |
| 1198 | <section·class="detail"·id="characters_to_nfkc_list/1"> | 1198 | <section·class="detail"·id="characters_to_nfkc_list/1"> |
| 1199 | ··<div·class="detail-header"> | 1199 | ··<div·class="detail-header"> |
| 1200 | ····<a·href="#characters_to_nfkc_list/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 1200 | ····<a·href="#characters_to_nfkc_list/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 1201 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 1201 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 1220, 15 lines modified | Offset 1220, 15 lines modified | ||
| 1220 | ······<div·class="specs"> | 1220 | ······<div·class="specs"> |
| 1221 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·characters_to_nfkc_list(<a·href="#t:chardata/0">chardata</a>())·->·[<a·href="../../../../erts-16.0/doc/html/erlang.html#t:char/0">char</a>()]·|·{error,·[<a·href="../../../../erts-16.0/doc/html/erlang.html#t:char/0">char</a>()],·<a·href="#t:chardata/0">chardata</a>()}.</pre> | 1221 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·characters_to_nfkc_list(<a·href="#t:chardata/0">chardata</a>())·->·[<a·href="../../../../erts-16.0/doc/html/erlang.html#t:char/0">char</a>()]·|·{error,·[<a·href="../../../../erts-16.0/doc/html/erlang.html#t:char/0">char</a>()],·<a·href="#t:chardata/0">chardata</a>()}.</pre> |
| 1222 | ······</div> | 1222 | ······</div> |
| 1223 | <p>Converts·a·possibly·deep·list·of·characters·and·binaries·into·a·Normalized·Form | 1223 | <p>Converts·a·possibly·deep·list·of·characters·and·binaries·into·a·Normalized·Form |
| 1224 | of·compatibly·equivalent·Composed·characters·according·to·the·Unicode·standard.</p><p>Any·binaries·in·the·input·must·be·encoded·with·utf8·encoding.</p><p>The·result·is·a·list·of·characters.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">3>·</span><span·class="nc">unicode</span><span·class="p">:</span><span·class="nf">characters_to_nfkc_list</span><span·class="p"·data-group-id=" | 1224 | of·compatibly·equivalent·Composed·characters·according·to·the·Unicode·standard.</p><p>Any·binaries·in·the·input·must·be·encoded·with·utf8·encoding.</p><p>The·result·is·a·list·of·characters.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">3>·</span><span·class="nc">unicode</span><span·class="p">:</span><span·class="nf">characters_to_nfkc_list</span><span·class="p"·data-group-id="9343721047-1">(</span><span·class="p"·data-group-id="9343721047-2">[</span><span·class="p"·data-group-id="9343721047-3"><<</span><span·class="s">"abc..a"</span><span·class="p"·data-group-id="9343721047-3">>></span><span·class="p">,</s[·...·truncated·by·diffoscope;·len:·857,·SHA:·3f9402b0d82b8e38cf1553c2d663dfcce3535c95e3b402fc5faded6b46cc4439·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 1225 | </span><span·class="s">"abc..åäö32"</span></code></pre> | 1225 | </span><span·class="s">"abc..åäö32"</span></code></pre> |
| 1226 | ··</section> | 1226 | ··</section> |
| 1227 | </section> | 1227 | </section> |
| 1228 | <section·class="detail"·id="characters_to_nfkd_binary/1"> | 1228 | <section·class="detail"·id="characters_to_nfkd_binary/1"> |
| 1229 | ··<div·class="detail-header"> | 1229 | ··<div·class="detail-header"> |
| 1230 | ····<a·href="#characters_to_nfkd_binary/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 1230 | ····<a·href="#characters_to_nfkd_binary/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| Offset 1251, 16 lines modified | Offset 1251, 16 lines modified | ||
| 1251 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·characters_to_nfkd_binary(<a·href="#t:chardata/0">chardata</a>())·->·<a·href="#t:unicode_binary/0">unicode_binary</a>()·|·{error,·<a·href="#t:unicode_binary/0">unicode_binary</a>(),·<a·href="#t:chardata/0">chardata</a>()}.</pre> | 1251 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·characters_to_nfkd_binary(<a·href="#t:chardata/0">chardata</a>())·->·<a·href="#t:unicode_binary/0">unicode_binary</a>()·|·{error,·<a·href="#t:unicode_binary/0">unicode_binary</a>(),·<a·href="#t:chardata/0">chardata</a>()}.</pre> |
| 1252 | ······</div> | 1252 | ······</div> |
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| Offset 335, 28 lines modified | Offset 335, 28 lines modified | ||
| 335 | communicating·externally.·Functions·and·bit·syntax·exist·to·encode·and·decode | 335 | communicating·externally.·Functions·and·bit·syntax·exist·to·encode·and·decode |
| 336 | both·UTF-8,·UTF-16,·and·UTF-32·in·binaries.·However,·library·functions·dealing | 336 | both·UTF-8,·UTF-16,·and·UTF-32·in·binaries.·However,·library·functions·dealing |
| 337 | with·binaries·and·Unicode·in·general·only·deal·with·the·default·encoding.</p><p>Character·data·can·be·combined·from·many·sources,·sometimes·available·in·a·mix | 337 | with·binaries·and·Unicode·in·general·only·deal·with·the·default·encoding.</p><p>Character·data·can·be·combined·from·many·sources,·sometimes·available·in·a·mix |
| 338 | of·strings·and·binaries.·Erlang·has·for·long·had·the·concept·of·<code·class="inline">iodata</code>·or | 338 | of·strings·and·binaries.·Erlang·has·for·long·had·the·concept·of·<code·class="inline">iodata</code>·or |
| 339 | <code·class="inline">iolist</code>s,·where·binaries·and·lists·can·be·combined·to·represent·a·sequence·of | 339 | <code·class="inline">iolist</code>s,·where·binaries·and·lists·can·be·combined·to·represent·a·sequence·of |
| 340 | bytes.·In·the·same·way,·the·Unicode-aware·modules·often·allow·for·combinations | 340 | bytes.·In·the·same·way,·the·Unicode-aware·modules·often·allow·for·combinations |
| 341 | of·binaries·and·lists,·where·the·binaries·have·characters·encoded·in·UTF-8·and | 341 | of·binaries·and·lists,·where·the·binaries·have·characters·encoded·in·UTF-8·and |
| 342 | the·lists·contain·such·binaries·or·numbers·representing·Unicode·code·points:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">unicode_binary</span><span·class="p"·data-group-id=" | 342 | the·lists·contain·such·binaries·or·numbers·representing·Unicode·code·points:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">unicode_binary</span><span·class="p"·data-group-id="2026095799-1">(</span><span·class="p"·data-group-id="2026095799-1">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">binary</span><span·class="p"·data-group-id="2026095799-2">(</span><span·class="p"·data-group[·...·truncated·by·diffoscope;·len:·15,·SHA:·5ddf473dd68dcc05e917ccffed32e6260f06d9239524171bcc1866179ef901ac·...·]-2">)</span><span·class="w">·</span><span·class="ss">with</span><span·class="w">·</span><span·class="ss">characters</span><span·class="w">·</span><span·class="ss">encoded</span><span·class="w">·</span><span·class="ss">in</span><span·class="w">·</span><span·class="n">UTF</span><span·class="o">-</span><span·class="mi">8</span><span·class="w">·</span><span·class="ss">coding</span><span·class="w">·</span><span·class="ss">standard</span><span·class="w"> |
| 343 | </span><span·class="nf">chardata</span><span·class="p"·data-group-id=" | 343 | </span><span·class="nf">chardata</span><span·class="p"·data-group-id="2026095799-3">(</span><span·class="p"·data-group-id="2026095799-3">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">charlist</span><span·class="p"·data-group-id="2026095799-4">(</span><span·class="p"·data-gro[·...·truncated·by·diffoscope;·len:·233,·SHA:·a3fe4ec22f80ad191933513315ac67f83a06626a8c5ec2c645f6f2f8fe5bebd2·...·]-5">)</span><span·class="w"> |
| 344 | </span><span·class="nf">charlist</span><span·class="p"·data-group-id=" | 344 | </span><span·class="nf">charlist</span><span·class="p"·data-group-id="2026095799-6">(</span><span·class="p"·data-group-id="2026095799-6">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">maybe_improper_list</span><span·class="p"·data-group-id="2026095799-7">(</span><span·class="[·...·truncated·by·diffoscope;·len:·536,·SHA:·3acf1f57736e7e50918bb694381bcf2efe22ea70c227c2f85beca734842e4298·...·]-10">)</span><span·class="p">,</span><span·class="w"> |
| 345 | ··</span><span·class="nf">unicode_binary</span><span·class="p"·data-group-id=" | 345 | ··</span><span·class="nf">unicode_binary</span><span·class="p"·data-group-id="2026095799-11">(</span><span·class="p"·data-group-id="2026095799-11">)</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="nf">nil</span><span·class="p"·data-group-id="2026095799-12">(</span><span·class="p"·data-group[·...·truncated·by·diffoscope;·len:·69,·SHA:·bd8a8c82bf1f050e246c40d42aab39a1da67c2a28200c922ec4fe198abbe591a·...·]-7">)</span></code></pre><p>The·module·<a·href="unicode.html"><code·class="inline">unicode</code></a>·even·supports·similar·mixes·with·binaries·containing |
| 346 | other·encodings·than·UTF-8,·but·that·is·a·special·case·to·allow·for·conversions | 346 | other·encodings·than·UTF-8,·but·that·is·a·special·case·to·allow·for·conversions |
| 347 | to·and·from·external·data:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">external_unicode_binary</span><span·class="p"·data-group-id=" | 347 | to·and·from·external·data:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">external_unicode_binary</span><span·class="p"·data-group-id="1144958562-1">(</span><span·class="p"·data-group-id="1144958562-1">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">binary</span><span·class="p"·data-group-id="1144958562-2">(</span><span·class="p"·data-group[·...·truncated·by·diffoscope;·len:·15,·SHA:·42d042cd8a377aaf29f5ff8f86c2ee288ecb0f6fcae8a5deea26166d2393eae6·...·]-2">)</span><span·class="w">·</span><span·class="ss">with</span><span·class="w">·</span><span·class="ss">characters</span><span·class="w">·</span><span·class="ss">coded</span><span·class="w">·</span><span·class="ss">in</span><span·class="w">·</span><span·class="ss">a</span><span·class="w">·</span><span·class="ss">user</span><span·class="o">-</span><span·class="ss">specified</span><span·class="w"> |
| 348 | ··</span><span·class="n">Unicode</span><span·class="w">·</span><span·class="ss">encoding</span><span·class="w">·</span><span·class="ss">other</span><span·class="w">·</span><span·class="ss">than</span><span·class="w">·</span><span·class="n">UTF</span><span·class="o">-</span><span·class="mi">8</span><span·class="w">·</span><span·class="p"·data-group-id=" | 348 | ··</span><span·class="n">Unicode</span><span·class="w">·</span><span·class="ss">encoding</span><span·class="w">·</span><span·class="ss">other</span><span·class="w">·</span><span·class="ss">than</span><span·class="w">·</span><span·class="n">UTF</span><span·class="o">-</span><span·class="mi">8</span><span·class="w">·</span><span·class="p"·data-group-id="1144958562-3">(</span><span·class="n">UTF</span><span·class="o">-</span><span·class="mi">16</span><span·class="w">·</span><span·class="ow">or</span><span·class="w">·</span><span·class="n">UTF</span><span·class="o">-</span><span·class="mi">32</span><span·cl[·...·truncated·by·diffoscope;·len:·33,·SHA:·ddf048f869687b7c9528d90fffeba1abb55c0d850d2bb07c9a86fd8e8b5daa7c·...·]-3">)</span><span·class="w"> |
| 349 | </span><span·class="nf">external_chardata</span><span·class="p"·data-group-id=" | 349 | </span><span·class="nf">external_chardata</span><span·class="p"·data-group-id="1144958562-4">(</span><span·class="p"·data-group-id="1144958562-4">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">external_charlist</span><span·class="p"·data-group-id="1144958562-5">(</span><span·class="p"[·...·truncated·by·diffoscope;·len:·251,·SHA:·e8c506b4ece857eeb0cdfbecfd3155418395bb6e40c929c8b425772b63db7213·...·]-6">)</span><span·class="w"> |
| 350 | </span><span·class="nf">external_charlist</span><span·class="p"·data-group-id=" | 350 | </span><span·class="nf">external_charlist</span><span·class="p"·data-group-id="1144958562-7">(</span><span·class="p"·data-group-id="1144958562-7">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">maybe_improper_list</span><span·class="p"·data-group-id="1144958562-8">(</span><span·class="[·...·truncated·by·diffoscope;·len:·335,·SHA:·52df0e16d65d96e0e99ca4ca851a438b366d929bbee3fdf581a01fac8ff440ca·...·]-10">)</span><span·class="w">·</span><span·class="p">|</span><span·class="w"> |
| 351 | ··</span><span·class="nf">external_charlist</span><span·class="p"·data-group-id=" | 351 | ··</span><span·class="nf">external_charlist</span><span·class="p"·data-group-id="1144958562-11">(</span><span·class="p"·data-group-id="1144958562-11">)</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">external_unicode_binary</span><span·class="p"·data-group-id="1144958562-12">(</span><span·class="p"·data-group-id=[·...·truncated·by·diffoscope;·len:·272,·SHA:·545b23bdb9ec5c2ce61fba139450061607573d85cc5b1ef669a0a7045c90ea3e·...·]-8">)</span></code></pre><h2·id="basic-language-support"·class="section-heading"> |
| 352 | ··<a·href="#basic-language-support"·class="hover-link"> | 352 | ··<a·href="#basic-language-support"·class="hover-link"> |
| 353 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 353 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 354 | ··</a> | 354 | ··</a> |
| 355 | ··<span·class="text">Basic·Language·Support</span> | 355 | ··<span·class="text">Basic·Language·Support</span> |
| 356 | </h2> | 356 | </h2> |
| 357 | <p><a·href=""·id="unicode_in_erlang"></a>·As·from·Erlang/OTP·R16,·Erlang·source·files·can·be | 357 | <p><a·href=""·id="unicode_in_erlang"></a>·As·from·Erlang/OTP·R16,·Erlang·source·files·can·be |
| 358 | written·in·UTF-8·or·bytewise·(<code·class="inline">latin1</code>)·encoding.·For·information·about·how·to | 358 | written·in·UTF-8·or·bytewise·(<code·class="inline">latin1</code>)·encoding.·For·information·about·how·to |
| Offset 396, 78 lines modified | Offset 396, 78 lines modified | ||
| 396 | ··<a·href="#heuristic-string-detection"·class="hover-link"> | 396 | ··<a·href="#heuristic-string-detection"·class="hover-link"> |
| 397 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 397 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 398 | ··</a> | 398 | ··</a> |
| 399 | ··<span·class="text">Heuristic·String·Detection</span> | 399 | ··<span·class="text">Heuristic·String·Detection</span> |
| 400 | </h3> | 400 | </h3> |
| 401 | <p>In·certain·output·functions·and·in·the·output·of·return·values·in·the·shell, | 401 | <p>In·certain·output·functions·and·in·the·output·of·return·values·in·the·shell, |
| 402 | Erlang·tries·to·detect·string·data·in·lists·and·binaries·heuristically. | 402 | Erlang·tries·to·detect·string·data·in·lists·and·binaries·heuristically. |
| 403 | Typically·you·will·see·heuristic·detection·in·a·situation·like·this:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="p"·data-group-id=" | 403 | Typically·you·will·see·heuristic·detection·in·a·situation·like·this:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="p"·data-group-id="7370714108-1">[</span><span·class="mi">97</span><span·class="p">,</span><span·class="mi">98</span><span·class="p">,</span><span·class="mi">99</span><span·class="p"·data-group-id="7370714108-1">]</span><span·class="p">.</span><span·class="w"> |
| 404 | </span><span·class="s">"abc"</span><span·class="gp·unselectable"> | 404 | </span><span·class="s">"abc"</span><span·class="gp·unselectable"> |
| 405 | 2>·</span><span·class="p"·data-group-id=" | 405 | 2>·</span><span·class="p"·data-group-id="7370714108-2"><<</span><span·class="mi">97</span><span·class="p">,</span><span·class="mi">98</span><span·class="p">,</span><span·class="mi">99</span><span·class="p"·data-group-id="7370714108-2">>></span><span·class="p">.</span><span·class="w"> |
| 406 | </span><span·class="p"·data-group-id=" | 406 | </span><span·class="p"·data-group-id="7370714108-3"><<</span><span·class="s">"abc"</span><span·class="p"·data-group-id="7370714108-3">>></span><span·class="gp·unselectable"> |
| 407 | 3>·</span><span·class="p"·data-group-id=" | 407 | 3>·</span><span·class="p"·data-group-id="7370714108-4"><<</span><span·class="mi">195</span><span·class="p">,</span><span·class="mi">165</span><span·class="p">,</span><span·class="mi">195</span><span·class="p">,</span><span·class="mi">164</span><span·class="p">,</span><span·class="mi">195</s[·...·truncated·by·diffoscope;·len:·96,·SHA:·1319d2e6173584a637c0fed9bca0ea5668590cc608a6538643d0f119cb26d08d·...·]-4">>></span><span·class="p">.</span><span·class="w"> |
| 408 | </span><span·class="p"·data-group-id=" | 408 | </span><span·class="p"·data-group-id="7370714108-5"><<</span><span·class="s">"åäö"</span><span·class="o">/</span><span·class="ss">utf8</span><span·class="p"·data-group-id="7370714108-5">>></span></code></pre><p>Here·the·shell·detects·lists·containing·printable·characters·or·binaries |
| 409 | containing·printable·characters·in·bytewise·or·UTF-8·encoding.·But·what·is·a | 409 | containing·printable·characters·in·bytewise·or·UTF-8·encoding.·But·what·is·a |
| 410 | printable·character?·One·view·is·that·anything·the·Unicode·standard·thinks·is | 410 | printable·character?·One·view·is·that·anything·the·Unicode·standard·thinks·is |
| 411 | printable,·is·also·printable·according·to·the·heuristic·detection.·The·result·is | 411 | printable,·is·also·printable·according·to·the·heuristic·detection.·The·result·is |
| 412 | then·that·almost·any·list·of·integers·are·deemed·a·string,·and·all·sorts·of | 412 | then·that·almost·any·list·of·integers·are·deemed·a·string,·and·all·sorts·of |
| 413 | characters·are·printed,·maybe·also·characters·that·your·terminal·lacks·in·its | 413 | characters·are·printed,·maybe·also·characters·that·your·terminal·lacks·in·its |
| 414 | font·set·(resulting·in·some·unappreciated·generic·output).·Another·way·is·to | 414 | font·set·(resulting·in·some·unappreciated·generic·output).·Another·way·is·to |
| 415 | keep·it·backward·compatible·so·that·only·the·ISO·Latin-1·character·set·is·used | 415 | keep·it·backward·compatible·so·that·only·the·ISO·Latin-1·character·set·is·used |
| 416 | to·detect·a·string.·A·third·way·is·to·let·the·user·decide·exactly·what·Unicode | 416 | to·detect·a·string.·A·third·way·is·to·let·the·user·decide·exactly·what·Unicode |
| 417 | ranges·that·are·to·be·viewed·as·characters.</p><p>As·from·Erlang/OTP·R16B·you·can·select·the·ISO·Latin-1·range·or·the·whole | 417 | ranges·that·are·to·be·viewed·as·characters.</p><p>As·from·Erlang/OTP·R16B·you·can·select·the·ISO·Latin-1·range·or·the·whole |
| 418 | Unicode·range·by·supplying·startup·flag·<code·class="inline">+pc·latin1</code>·or·<code·class="inline">+pc·unicode</code>, | 418 | Unicode·range·by·supplying·startup·flag·<code·class="inline">+pc·latin1</code>·or·<code·class="inline">+pc·unicode</code>, |
| 419 | respectively.·For·backward·compatibility,·<code·class="inline">latin1</code>·is·default.·This·only | 419 | respectively.·For·backward·compatibility,·<code·class="inline">latin1</code>·is·default.·This·only |
| 420 | controls·how·heuristic·string·detection·is·done.·More·ranges·are·expected·to·be | 420 | controls·how·heuristic·string·detection·is·done.·More·ranges·are·expected·to·be |
| 421 | added·in·the·future,·enabling·tailoring·of·the·heuristics·to·the·language·and | 421 | added·in·the·future,·enabling·tailoring·of·the·heuristics·to·the·language·and |
| 422 | region·relevant·to·the·user.</p><p>The·following·examples·show·the·two·startup·options:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="sc">$·</span><span·class="ss">erl</span><span·class="w">·</span><span·class="o">+</span><span·class="ss">pc</span><span·class="w">·</span><span·class="ss">latin1</span><span·class="w"> | 422 | region·relevant·to·the·user.</p><p>The·following·examples·show·the·two·startup·options:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="sc">$·</span><span·class="ss">erl</span><span·class="w">·</span><span·class="o">+</span><span·class="ss">pc</span><span·class="w">·</span><span·class="ss">latin1</span><span·class="w"> |
| 423 | </span><span·class="n">Erlang</span><span·class="w">·</span><span·class="n">R16B</span><span·class="w">·</span><span·class="p"·data-group-id=" | 423 | </span><span·class="n">Erlang</span><span·class="w">·</span><span·class="n">R16B</span><span·class="w">·</span><span·class="p"·data-group-id="6313799731-1">(</span><span·class="ss">erts</span><span·class="o">-</span><span·class="mf">5.10</span><span·class="p">.</span><span·class="mi">1</span><span·class="p"·data-group-id="6313799731-1">)</span><span·class="w">·</span><span·class="p"·data-group-i[·...·truncated·by·diffoscope;·len:·782,·SHA:·504714e5298f7e8309fd43d9e650242c5678226c1f17f14cc1f1d6a78f4eccb7·...·]-5">]</span><span·class="w"> |
| 424 | </span><span·class="n">Eshell</span><span·class="w">·</span><span·class="n">V5</span><span·class="p">.</span><span·class="mf">10.1</span><span·class="w">··</span><span·class="p"·data-group-id=" | 424 | </span><span·class="n">Eshell</span><span·class="w">·</span><span·class="n">V5</span><span·class="p">.</span><span·class="mf">10.1</span><span·class="w">··</span><span·class="p"·data-group-id="6313799731-6">(</span><span·class="ss">abort</span><span·class="w">·</span><span·class="ss">with</span><span·class="w">·</span><span·class="err">^</span><span·class="n">G</span><span·class="p"·data-group-id="6313799731-6">)</span><span·class="gp·unselectable"> |
| 425 | 1>·</span><span·class="p"·data-group-id=" | 425 | 1>·</span><span·class="p"·data-group-id="6313799731-7">[</span><span·class="mi">1024</span><span·class="p"·data-group-id="6313799731-7">]</span><span·class="p">.</span><span·class="w"> |
| 426 | </span><span·class="p"·data-group-id=" | 426 | </span><span·class="p"·data-group-id="6313799731-8">[</span><span·class="mi">1024</span><span·class="p"·data-group-id="6313799731-8">]</span><span·class="gp·unselectable"> |
| 427 | 2>·</span><span·class="p"·data-group-id=" | 427 | 2>·</span><span·class="p"·data-group-id="6313799731-9">[</span><span·class="mi">1070</span><span·class="p">,</span><span·class="mi">1085</span><span·class="p">,</span><span·class="mi">1080</span><span·class="p">,</span><span·class="mi">1082</span><span·class="p">,</span><span·class="mi">1086</spa[·...·truncated·by·diffoscope;·len:·95,·SHA:·8545090fae73cb1cd27fcb9ca163f42835489bab72b75719553df047817966d8·...·]-9">]</span><span·class="p">.</span><span·class="w"> |
| 428 | </span><span·class="p"·data-group-id=" | 428 | </span><span·class="p"·data-group-id="6313799731-10">[</span><span·class="mi">1070</span><span·class="p">,</span><span·class="mi">1085</span><span·class="p">,</span><span·class="mi">1080</span><span·class="p">,</span><span·class="mi">1082</span><span·class="p">,</span><span·class="mi">1086</sp[·...·truncated·by·diffoscope;·len:·96,·SHA:·d471492c4c62e32205de1af443fedd80d3ba4c0e5b9aafb05a47d3ebfd7c87cf·...·]-10">]</span><span·class="gp·unselectable"> |
| 429 | 3>·</span><span·class="p"·data-group-id=" | 429 | 3>·</span><span·class="p"·data-group-id="6313799731-11">[</span><span·class="mi">229</span><span·class="p">,</span><span·class="mi">228</span><span·class="p">,</span><span·class="mi">246</span><span·class="p"·data-group-id="6313799731-11">]</span><span·class="p">.</span><span·class="w"> |
| 430 | </span><span·class="s">"åäö"</span><span·class="gp·unselectable"> | 430 | </span><span·class="s">"åäö"</span><span·class="gp·unselectable"> |
| 431 | 4>·</span><span·class="p"·data-group-id=" | 431 | 4>·</span><span·class="p"·data-group-id="6313799731-12"><<</span><span·class="mi">208</span><span·class="p">,</span><span·class="mi">174</span><span·class="p">,</span><span·class="mi">208</span><span·class="p">,</span><span·class="mi">189</span><span·class="p">,</span><span·class="mi">208</[·...·truncated·by·diffoscope;·len:·403,·SHA:·c768699584ab5f2bd5a75b2f729d4cf802fe645f3125cf053ff2930c54707a47·...·]-12">>></span><span·class="p">.</span><span·class="w"> |
| 432 | </span><span·class="p"·data-group-id=" | 432 | </span><span·class="p"·data-group-id="6313799731-13"><<</span><span·class="mi">208</span><span·class="p">,</span><span·class="mi">174</span><span·class="p">,</span><span·class="mi">208</span><span·class="p">,</span><span·class="mi">189</span><span·class="p">,</span><span·class="mi">208</[·...·truncated·by·diffoscope;·len:·403,·SHA:·c768699584ab5f2bd5a75b2f729d4cf802fe645f3125cf053ff2930c54707a47·...·]-13">>></span><span·class="gp·unselectable"> |
| 433 | 5>·</span><span·class="p"·data-group-id=" | 433 | 5>·</span><span·class="p"·data-group-id="6313799731-14"><<</span><span·class="mi">229</span><span·class="o">/</span><span·class="ss">utf8</span><span·class="p">,</span><span·class="mi">228</span><span·class="o">/</span><span·class="ss">utf8</span><span·class="p">,</span><span·class="mi">246[·...·truncated·by·diffoscope;·len:·100,·SHA:·4eee601c34ffe0e2484310ba042ba0e8672f8bd32f27dc4a3acfb3b31c845124·...·]-14">>></span><span·class="p">.</span><span·class="w"> |
| 434 | </span><span·class="p"·data-group-id=" | 434 | </span><span·class="p"·data-group-id="6313799731-15"><<</span><span·class="s">"åäö"</span><span·class="o">/</span><span·class="ss">utf8</span><span·class="p"·data-group-id="6313799731-15">>></span></code></pre><pre><code·class="makeup·erlang"·translate="no"><span·class="sc">$·</span><span·class="ss">erl</span><span·class="w">·</span><span·class="o">+</span><span·class="ss">pc</span><span·class="w">·</span><span·class="ss">unicode</span><span·class="w"> |
| 435 | </span><span·class="n">Erlang</span><span·class="w">·</span><span·class="n">R16B</span><span·class="w">·</span><span·class="p"·data-group-id=" | 435 | </span><span·class="n">Erlang</span><span·class="w">·</span><span·class="n">R16B</span><span·class="w">·</span><span·class="p"·data-group-id="0657578474-1">(</span><span·class="ss">erts</span><span·class="o">-</span><span·class="mf">5.10</span><span·class="p">.</span><span·class="mi">1</span><span·class="p"·data-group-id="0657578474-1">)</span><span·class="w">·</span><span·class="p"·data-group-i[·...·truncated·by·diffoscope;·len:·782,·SHA:·fc5f5853a0676dd9c7087a01cc2ee8a3e40366222e77a0896c186da94071b28c·...·]-5">]</span><span·class="w"> |
| 436 | </span><span·class="n">Eshell</span><span·class="w">·</span><span·class="n">V5</span><span·class="p">.</span><span·class="mf">10.1</span><span·class="w">··</span><span·class="p"·data-group-id=" | 436 | </span><span·class="n">Eshell</span><span·class="w">·</span><span·class="n">V5</span><span·class="p">.</span><span·class="mf">10.1</span><span·class="w">··</span><span·class="p"·data-group-id="0657578474-6">(</span><span·class="ss">abort</span><span·class="w">·</span><span·class="ss">with</span><span·class="w">·</span><span·class="err">^</span><span·class="n">G</span><span·class="p"·data-group-id="0657578474-6">)</span><span·class="gp·unselectable"> |
| 437 | 1>·</span><span·class="p"·data-group-id=" | 437 | 1>·</span><span·class="p"·data-group-id="0657578474-7">[</span><span·class="mi">1024</span><span·class="p"·data-group-id="0657578474-7">]</span><span·class="p">.</span><span·class="w"> |
| 438 | </span><span·class="s">"Ѐ"</span><span·class="gp·unselectable"> | 438 | </span><span·class="s">"Ѐ"</span><span·class="gp·unselectable"> |
| 439 | 2>·</span><span·class="p"·data-group-id=" | 439 | 2>·</span><span·class="p"·data-group-id="0657578474-8">[</span><span·class="mi">1070</span><span·class="p">,</span><span·class="mi">1085</span><span·class="p">,</span><span·class="mi">1080</span><span·class="p">,</span><span·class="mi">1082</span><span·class="p">,</span><span·class="mi">1086</spa[·...·truncated·by·diffoscope;·len:·95,·SHA:·e6c4ff8905381b3b4a1f425a6519846adde82e3ddba95ad97f7d45dfc4f2bfdf·...·]-8">]</span><span·class="p">.</span><span·class="w"> |
| 440 | </span><span·class="s">"Юникод"</span><span·class="gp·unselectable"> | 440 | </span><span·class="s">"Юникод"</span><span·class="gp·unselectable"> |
| 441 | 3>·</span><span·class="p"·data-group-id=" | 441 | 3>·</span><span·class="p"·data-group-id="0657578474-9">[</span><span·class="mi">229</span><span·class="p">,</span><span·class="mi">228</span><span·class="p">,</span><span·class="mi">246</span><span·class="p"·data-group-id="0657578474-9">]</span><span·class="p">.</span><span·class="w"> |
| 442 | </span><span·class="s">"åäö"</span><span·class="gp·unselectable"> | 442 | </span><span·class="s">"åäö"</span><span·class="gp·unselectable"> |
| 443 | 4>·</span><span·class="p"·data-group-id=" | 443 | 4>·</span><span·class="p"·data-group-id="0657578474-10"><<</span><span·class="mi">208</span><span·class="p">,</span><span·class="mi">174</span><span·class="p">,</span><span·class="mi">208</span><span·class="p">,</span><span·class="mi">189</span><span·class="p">,</span><span·class="mi">208</[·...·truncated·by·diffoscope;·len:·403,·SHA:·342ff585d945420212a87cb7de4fa073b0cbefbdb62fc03105118c3a8d9d5909·...·]-10">>></span><span·class="p">.</span><span·class="w"> |
| 444 | </span><span·class="p"·data-group-id=" | 444 | </span><span·class="p"·data-group-id="0657578474-11"><<</span><span·class="s">"Юникод"</span><span·class="o">/</span><span·class="ss">utf8</span><span·class="p"·data-group-id="0657578474-11">>></span><span·class="gp·unselectable"> |
| 445 | 5>·</span><span·class="p"·data-group-id=" | 445 | 5>·</span><span·class="p"·data-group-id="0657578474-12"><<</span><span·class="mi">229</span><span·class="o">/</span><span·class="ss">utf8</span><span·class="p">,</span><span·class="mi">228</span><span·class="o">/</span><span·class="ss">utf8</span><span·class="p">,</span><span·class="mi">246[·...·truncated·by·diffoscope;·len:·100,·SHA:·ca5b232acffb17e4c03249e7f78f80a4219e7cfb56bb495d8a002c11f464a07a·...·]-12">>></span><span·class="p">.</span><span·class="w"> |
| 446 | </span><span·class="p"·data-group-id=" | 446 | </span><span·class="p"·data-group-id="0657578474-13"><<</span><span·class="s">"åäö"</span><span·class="o">/</span><span·class="ss">utf8</span><span·class="p"·data-group-id="0657578474-13">>></span></code></pre><p>In·the·examples,·you·can·see·that·the·default·Erlang·shell·interprets·only |
| 447 | characters·from·the·ISO·Latin1·range·as·printable·and·only·detects·lists·or | 447 | characters·from·the·ISO·Latin1·range·as·printable·and·only·detects·lists·or |
| 448 | binaries·with·those·"printable"·characters·as·containing·string·data.·The·valid | 448 | binaries·with·those·"printable"·characters·as·containing·string·data.·The·valid |
| 449 | UTF-8·binary·containing·the·Russian·word·"Юникод",·is·not·printed·as·a·string. | 449 | UTF-8·binary·containing·the·Russian·word·"Юникод",·is·not·printed·as·a·string. |
| 450 | When·started·with·all·Unicode·characters·printable·(<code·class="inline">+pc·unicode</code>),·the·shell | 450 | When·started·with·all·Unicode·characters·printable·(<code·class="inline">+pc·unicode</code>),·the·shell |
| 451 | outputs·anything·containing·printable·Unicode·data·(in·binaries,·either·UTF-8·or | 451 | outputs·anything·containing·printable·Unicode·data·(in·binaries,·either·UTF-8·or |
| 452 | bytewise·encoded)·as·string·data.</p><p>These·heuristics·are·also·used·by·<a·href="io.html#format/2"><code·class="inline">io:format/2</code></a>,·<a·href="io_lib.html#format/2"><code·class="inline">io_lib:format/2</code></a>,·and·friends | 452 | bytewise·encoded)·as·string·data.</p><p>These·heuristics·are·also·used·by·<a·href="io.html#format/2"><code·class="inline">io:format/2</code></a>,·<a·href="io_lib.html#format/2"><code·class="inline">io_lib:format/2</code></a>,·and·friends |
| 453 | when·modifier·<code·class="inline">t</code>·is·used·with·<code·class="inline">~p</code>·or·<code·class="inline">~P</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="sc">$·</span><span·class="ss">erl</span><span·class="w">·</span><span·class="o">+</span><span·class="ss">pc</span><span·class="w">·</span><span·class="ss">latin1</span><span·class="w"> | 453 | when·modifier·<code·class="inline">t</code>·is·used·with·<code·class="inline">~p</code>·or·<code·class="inline">~P</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="sc">$·</span><span·class="ss">erl</span><span·class="w">·</span><span·class="o">+</span><span·class="ss">pc</span><span·class="w">·</span><span·class="ss">latin1</span><span·class="w"> |
| 454 | </span><span·class="n">Erlang</span><span·class="w">·</span><span·class="n">R16B</span><span·class="w">·</span><span·class="p"·data-group-id=" | 454 | </span><span·class="n">Erlang</span><span·class="w">·</span><span·class="n">R16B</span><span·class="w">·</span><span·class="p"·data-group-id="5672317676-1">(</span><span·class="ss">erts</span><span·class="o">-</span><span·class="mf">5.10</span><span·class="p">.</span><span·class="mi">1</span><span·class="p"·data-group-id="5672317676-1">)</span><span·class="w">·</span><span·class="p"·data-group-i[·...·truncated·by·diffoscope;·len:·782,·SHA:·118f9a950b60e5ebab8b3dc38bc5509d502d74602d303f439e1f2a740a88766d·...·]-5">]</span><span·class="w"> |
| 455 | </span><span·class="n">Eshell</span><span·class="w">·</span><span·class="n">V5</span><span·class="p">.</span><span·class="mf">10.1</span><span·class="w">··</span><span·class="p"·data-group-id=" | 455 | </span><span·class="n">Eshell</span><span·class="w">·</span><span·class="n">V5</span><span·class="p">.</span><span·class="mf">10.1</span><span·class="w">··</span><span·class="p"·data-group-id="5672317676-6">(</span><span·class="ss">abort</span><span·class="w">·</span><span·class="ss">with</span><span·class="w">·</span><span·class="err">^</span><span·class="n">G</span><span·class="p"·data-group-id="5672317676-6">)</span><span·class="gp·unselectable"> |
| 456 | 1>·</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 456 | 1>·</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="5672317676-7">(</span><span·class="s">"~tp</span><span·class="si">~n</span><span·class="s">"</span><span·class="p">,</span><span·class="p"·data-group-id="5672317676-8">[</span><span·class="p"·data-group-id="5672317676-9">{</span><span·class="p"·d[·...·truncated·by·diffoscope;·len:·1308,·SHA:·8bda1c93e92b83f3768ae47474b27332b76546698a3c05b3eb792c41331e4065·...·]-7">)</span><span·class="p">.</span><span·class="w"> |
| 457 | </span><span·class="p"·data-group-id=" | 457 | </span><span·class="p"·data-group-id="5672317676-13">{</span><span·class="p"·data-group-id="5672317676-14"><<</span><span·class="s">"åäö"</span><span·class="p"·data-group-id="5672317676-14">>></span><span·class="p">,</span><span·class="p"·data-group-id="5672317676-15"><[·...·truncated·by·diffoscope;·len:·938,·SHA:·2ce5762e2c304175030dda6f74d80f1211db94e331cc2b85a79f2cc9e264622f·...·]-13">}</span><span·class="w"> |
| 458 | </span><span·class="ss">ok</span></code></pre><pre><code·class="makeup·erlang"·translate="no"><span·class="sc">$·</span><span·class="ss">erl</span><span·class="w">·</span><span·class="o">+</span><span·class="ss">pc</span><span·class="w">·</span><span·class="ss">unicode</span><span·class="w"> | 458 | </span><span·class="ss">ok</span></code></pre><pre><code·class="makeup·erlang"·translate="no"><span·class="sc">$·</span><span·class="ss">erl</span><span·class="w">·</span><span·class="o">+</span><span·class="ss">pc</span><span·class="w">·</span><span·class="ss">unicode</span><span·class="w"> |
| 459 | </span><span·class="n">Erlang</span><span·class="w">·</span><span·class="n">R16B</span><span·class="w">·</span><span·class="p"·data-group-id=" | 459 | </span><span·class="n">Erlang</span><span·class="w">·</span><span·class="n">R16B</span><span·class="w">·</span><span·class="p"·data-group-id="3191514663-1">(</span><span·class="ss">erts</span><span·class="o">-</span><span·class="mf">5.10</span><span·class="p">.</span><span·class="mi">1</span><span·class="p"·data-group-id="3191514663-1">)</span><span·class="w">·</span><span·class="p"·data-group-i[·...·truncated·by·diffoscope;·len:·782,·SHA:·ea14e70676cedd30e664b71d873dc28d99e16c34a8d01aaf7f91cb7e9578f53d·...·]-5">]</span><span·class="w"> |
| 460 | </span><span·class="n">Eshell</span><span·class="w">·</span><span·class="n">V5</span><span·class="p">.</span><span·class="mf">10.1</span><span·class="w">··</span><span·class="p"·data-group-id=" | 460 | </span><span·class="n">Eshell</span><span·class="w">·</span><span·class="n">V5</span><span·class="p">.</span><span·class="mf">10.1</span><span·class="w">··</span><span·class="p"·data-group-id="3191514663-6">(</span><span·class="ss">abort</span><span·class="w">·</span><span·class="ss">with</span><span·class="w">·</span><span·class="err">^</span><span·class="n">G</span><span·class="p"·data-group-id="3191514663-6">)</span><span·class="gp·unselectable"> |
| 461 | 1>·</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id=" | 461 | 1>·</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="3191514663-7">(</span><span·class="s">"~tp</span><span·class="si">~n</span><span·class="s">"</span><span·class="p">,</span><span·class="p"·data-group-id="3191514663-8">[</span><span·class="p"·data-group-id="3191514663-9">{</span><span·class="p"·d[·...·truncated·by·diffoscope;·len:·1308,·SHA:·c1add3cccfd099241ef99962512b003912e15e82043b6824a92bcff170d08df2·...·]-7">)</span><span·class="p">.</span><span·class="w"> |
| 462 | </span><span·class="p"·data-group-id=" | 462 | </span><span·class="p"·data-group-id="3191514663-13">{</span><span·class="p"·data-group-id="3191514663-14"><<</span><span·class="s">"åäö"</span><span·class="p"·data-group-id="3191514663-14">>></span><span·class="p">,</span><span·class="p"·data-group-id="3191514663-15"><[·...·truncated·by·diffoscope;·len:·443,·SHA:·98cc287e83b8a730bd739e49653a92e3d7d9eed3dca7a5a6ee07a3a99ee06c56·...·]-13">}</span><span·class="w"> |
| 463 | </span><span·class="ss">ok</span></code></pre><p>Notice·that·this·only·affects·<em>heuristic</em>·interpretation·of·lists·and·binaries | 463 | </span><span·class="ss">ok</span></code></pre><p>Notice·that·this·only·affects·<em>heuristic</em>·interpretation·of·lists·and·binaries |
| 464 | on·output.·For·example,·the·<code·class="inline">~ts</code>·format·sequence·always·outputs·a·valid·list·of | 464 | on·output.·For·example,·the·<code·class="inline">~ts</code>·format·sequence·always·outputs·a·valid·list·of |
| 465 | characters,·regardless·of·the·<code·class="inline">+pc</code>·setting,·as·the·programmer·has·explicitly | 465 | characters,·regardless·of·the·<code·class="inline">+pc</code>·setting,·as·the·programmer·has·explicitly |
| 466 | requested·string·output.</p><h2·id="the-interactive-shell"·class="section-heading"> | 466 | requested·string·output.</p><h2·id="the-interactive-shell"·class="section-heading"> |
| 467 | ··<a·href="#the-interactive-shell"·class="hover-link"> | 467 | ··<a·href="#the-interactive-shell"·class="hover-link"> |
| 468 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 468 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 469 | ··</a> | 469 | ··</a> |
| Offset 482, 47 lines modified | Offset 482, 47 lines modified | ||
| 482 | example,·a·<code·class="inline">LANG</code>·environment·variable·can·be·set·as·follows:</p><pre><code·class="text">$·echo·$LANG | 482 | example,·a·<code·class="inline">LANG</code>·environment·variable·can·be·set·as·follows:</p><pre><code·class="text">$·echo·$LANG |
| 483 | en_US.UTF-8</code></pre><p>Most·systems·handle·variable·<code·class="inline">LC_CTYPE</code>·before·<code·class="inline">LANG</code>,·so·if·that·is·set,·it | 483 | en_US.UTF-8</code></pre><p>Most·systems·handle·variable·<code·class="inline">LC_CTYPE</code>·before·<code·class="inline">LANG</code>,·so·if·that·is·set,·it |
| 484 | must·be·set·to·<code·class="inline">UTF-8</code>:</p><pre><code·class="text">$·echo·$LC_CTYPE | 484 | must·be·set·to·<code·class="inline">UTF-8</code>:</p><pre><code·class="text">$·echo·$LC_CTYPE |
| 485 | en_US.UTF-8</code></pre><p>The·<code·class="inline">LANG</code>·or·<code·class="inline">LC_CTYPE</code>·setting·are·to·be·consistent·with·what·the·terminal·is | 485 | en_US.UTF-8</code></pre><p>The·<code·class="inline">LANG</code>·or·<code·class="inline">LC_CTYPE</code>·setting·are·to·be·consistent·with·what·the·terminal·is |
| 486 | capable·of.·There·is·no·portable·way·for·Erlang·to·ask·the·terminal·about·its | 486 | capable·of.·There·is·no·portable·way·for·Erlang·to·ask·the·terminal·about·its |
| 487 | UTF-8·capacity,·we·have·to·rely·on·the·language·and·character·type·settings.</p><p>To·investigate·what·Erlang·thinks·about·the·terminal,·the·call | 487 | UTF-8·capacity,·we·have·to·rely·on·the·language·and·character·type·settings.</p><p>To·investigate·what·Erlang·thinks·about·the·terminal,·the·call |
| 488 | <a·href="io.html#getopts/1"><code·class="inline">io:getopts()</code></a>·can·be·used·when·the·shell·is·started:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="sc">$·</span><span·class="n">LC_CTYPE</span><span·class="o">=</span><span·class="ss">en_US</span><span·class="p">.</span><span·class="n">ISO</span><span·class="o">-</span><span·class="mi">8859</span><span·class="o">-</span><span·class="mi">1</span><span·class="w">·</span><span·class="ss">erl</span><span·class="w"> | 488 | <a·href="io.html#getopts/1"><code·class="inline">io:getopts()</code></a>·can·be·used·when·the·shell·is·started:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="sc">$·</span><span·class="n">LC_CTYPE</span><span·class="o">=</span><span·class="ss">en_US</span><span·class="p">.</span><span·class="n">ISO</span><span·class="o">-</span><span·class="mi">8859</span><span·class="o">-</span><span·class="mi">1</span><span·class="w">·</span><span·class="ss">erl</span><span·class="w"> |
| 489 | </span><span·class="n">Erlang</span><span·class="w">·</span><span·class="n">R16B</span><span·class="w">·</span><span·class="p"·data-group-id=" | 489 | </span><span·class="n">Erlang</span><span·class="w">·</span><span·class="n">R16B</span><span·class="w">·</span><span·class="p"·data-group-id="9080335851-1">(</span><span·class="ss">erts</span><span·class="o">-</span><span·class="mf">5.10</span><span·class="p">.</span><span·class="mi">1</span><span·class="p"·data-group-id="9080335851-1">)</span><span·class="w">·</span><span·class="p"·data-group-i[·...·truncated·by·diffoscope;·len:·782,·SHA:·ee8fe802984ad80c4a791ccb406882b09a64fabe03fb31b9fee7e46def9573d4·...·]-5">]</span><span·class="w"> |
| 490 | </span><span·class="n">Eshell</span><span·class="w">·</span><span·class="n">V5</span><span·class="p">.</span><span·class="mf">10.1</span><span·class="w">··</span><span·class="p"·data-group-id=" | 490 | </span><span·class="n">Eshell</span><span·class="w">·</span><span·class="n">V5</span><span·class="p">.</span><span·class="mf">10.1</span><span·class="w">··</span><span·class="p"·data-group-id="9080335851-6">(</span><span·class="ss">abort</span><span·class="w">·</span><span·class="ss">with</span><span·class="w">·</span><span·class="err">^</span><span·class="n">G</span><span·class="p"·data-group-id="9080335851-6">)</span><span·class="gp·unselectable"> |
| 491 | 1>·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">keyfind</span><span·class="p"·data-group-id=" | 491 | 1>·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">keyfind</span><span·class="p"·data-group-id="9080335851-7">(</span><span·class="ss">encoding</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">getopts</span>[·...·truncated·by·diffoscope;·len:·147,·SHA:·42bf4b6ce3503393ce0c1b32e98a2000359728acda08cafe9761a58f6b1a6f64·...·]-7">)</span><span·class="p">.</span><span·class="w"> |
| 492 | </span><span·class="p"·data-group-id=" | 492 | </span><span·class="p"·data-group-id="9080335851-9">{</span><span·class="ss">encoding</span><span·class="p">,</span><span·class="ss">latin1</span><span·class="p"·data-group-id="9080335851-9">}</span><span·class="gp·unselectable"> |
| 493 | 2>·</span><span·class="nf">q</span><span·class="p"·data-group-id=" | 493 | 2>·</span><span·class="nf">q</span><span·class="p"·data-group-id="9080335851-10">(</span><span·class="p"·data-group-id="9080335851-10">)</span><span·class="p">.</span><span·class="w"> |
| 494 | </span><span·class="ss">ok</span><span·class="w"> | 494 | </span><span·class="ss">ok</span><span·class="w"> |
| 495 | </span><span·class="sc">$·</span><span·class="n">LC_CTYPE</span><span·class="o">=</span><span·class="ss">en_US</span><span·class="p">.</span><span·class="n">UTF</span><span·class="o">-</span><span·class="mi">8</span><span·class="w">·</span><span·class="ss">erl</span><span·class="w"> | 495 | </span><span·class="sc">$·</span><span·class="n">LC_CTYPE</span><span·class="o">=</span><span·class="ss">en_US</span><span·class="p">.</span><span·class="n">UTF</span><span·class="o">-</span><span·class="mi">8</span><span·class="w">·</span><span·class="ss">erl</span><span·class="w"> |
| 496 | </span><span·class="n">Erlang</span><span·class="w">·</span><span·class="n">R16B</span><span·class="w">·</span><span·class="p"·data-group-id=" | 496 | </span><span·class="n">Erlang</span><span·class="w">·</span><span·class="n">R16B</span><span·class="w">·</span><span·class="p"·data-group-id="9080335851-11">(</span><span·class="ss">erts</span><span·class="o">-</span><span·class="mf">5.10</span><span·class="p">.</span><span·class="mi">1</span><span·class="p"·data-group-id="9080335851-11">)</span><span·class="w">·</span><span·class="p"·data-group[·...·truncated·by·diffoscope;·len:·791,·SHA:·f6016c7885897a6ed68864273d4170b8b3b06bdb869ee18a125ce16f70f93ad8·...·]-15">]</span><span·class="w"> |
| 497 | </span><span·class="n">Eshell</span><span·class="w">·</span><span·class="n">V5</span><span·class="p">.</span><span·class="mf">10.1</span><span·class="w">··</span><span·class="p"·data-group-id=" | 497 | </span><span·class="n">Eshell</span><span·class="w">·</span><span·class="n">V5</span><span·class="p">.</span><span·class="mf">10.1</span><span·class="w">··</span><span·class="p"·data-group-id="9080335851-16">(</span><span·class="ss">abort</span><span·class="w">·</span><span·class="ss">with</span><span·class="w">·</span><span·class="err">^</span><span·class="n">G</span><span·class="p"·data-group-id="9080335851-16">)</span><span·class="gp·unselectable"> |
| 498 | 1>·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">keyfind</span><span·class="p"·data-group-id=" | 498 | 1>·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">keyfind</span><span·class="p"·data-group-id="9080335851-17">(</span><span·class="ss">encoding</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">getopts</span[·...·truncated·by·diffoscope;·len:·150,·SHA:·804ddaa66b19ca777d97cc4d5fbf84b104113cf2931b90a6423e40422f75bc6d·...·]-17">)</span><span·class="p">.</span><span·class="w"> |
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| 587 | ···························QueryString·::·<a·href="#t:uri_string/0">uri_string</a>()·|·<a·href="#t:error/0">error</a>().</pre> | 587 | ···························QueryString·::·<a·href="#t:uri_string/0">uri_string</a>()·|·<a·href="#t:error/0">error</a>().</pre> |
| 588 | ······</div> | 588 | ······</div> |
| 589 | <p>Composes·a·form-urlencoded·<code·class="inline">QueryString</code>·based·on·a·<code·class="inline">QueryList</code>,·a·list·of | 589 | <p>Composes·a·form-urlencoded·<code·class="inline">QueryString</code>·based·on·a·<code·class="inline">QueryList</code>,·a·list·of |
| 590 | non-percent-encoded·key-value·pairs.</p><p>Form-urlencoding·is·defined·in·section·4.10.21.6·of·the·<a·href="https://www.w3.org/TR/html52/">HTML·5.2</a> | 590 | non-percent-encoded·key-value·pairs.</p><p>Form-urlencoding·is·defined·in·section·4.10.21.6·of·the·<a·href="https://www.w3.org/TR/html52/">HTML·5.2</a> |
| 591 | specification·and·in·section·4.10.22.6·of·the·<a·href="https://www.w3.org/TR/html50/">HTML·5.0</a> | 591 | specification·and·in·section·4.10.22.6·of·the·<a·href="https://www.w3.org/TR/html50/">HTML·5.0</a> |
| 592 | specification·for·non-UTF-8·encodings.</p><p>See·also·the·opposite·operation·<a·href="#dissect_query/1"><code·class="inline">dissect_query/1</code></a>.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">compose_query</span><span·class="p"·data-group-id="25 | 592 | specification·for·non-UTF-8·encodings.</p><p>See·also·the·opposite·operation·<a·href="#dissect_query/1"><code·class="inline">dissect_query/1</code></a>.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">compose_query</span><span·class="p"·data-group-id="3225172669-1">(</span><span·class="p"·data-group-id="3225172669-2">[</span><span·class="p"·data-group-id="3225172669-3">{</span><span·class="s">"foo·bar"</span><span·class="p">,</span><span·class="s">"1"</span><span·class="p"·data-group[·...·truncated·by·diffoscope;·len:·355,·SHA:·198cc6352700df27b6e7b20aa41c07cb0b3892b017b71b5c9306c5bac3c4e25c·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 593 | </span><span·class="s">"foo+bar=1&city=%C3%B6rebro"</span><span·class="gp·unselectable"> | 593 | </span><span·class="s">"foo+bar=1&city=%C3%B6rebro"</span><span·class="gp·unselectable"> |
| 594 | 2>·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">compose_query</span><span·class="p"·data-group-id="25 | 594 | 2>·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">compose_query</span><span·class="p"·data-group-id="3225172669-5">(</span><span·class="p"·data-group-id="3225172669-6">[</span><span·class="p"·data-group-id="3225172669-7">{</span><span·class="p"·data-group-id="3225172669-8"><<</span><span·class="s">"foo·bar"</span><span·class="p"·data-group[·...·truncated·by·diffoscope;·len:·255,·SHA:·f5fa71277f44fc33c62fac7237e75a6e9061e305080ae007167dfa982b61ecee·...·]-7">}</span><span·class="p">,</span><span·class="gp·unselectable"> |
| 595 | 2>·</span><span·class="p"·data-group-id="25 | 595 | 2>·</span><span·class="p"·data-group-id="3225172669-10">{</span><span·class="p"·data-group-id="3225172669-11"><<</span><span·class="s">"city"</span><span·class="p"·data-group-id="3225172669-11">>></span><span·class="p">,</span><span·class="p"·data-group-id="3225172669-12">&l[·...·truncated·by·diffoscope;·len:·315,·SHA:·5249cac8e692c45c2b96bea09e9b4cb34a19c31a927b18d4159367e17ea260c1·...·]-5">)</span><span·class="p">.</span><span·class="w"> |
| 596 | </span><span·class="p"·data-group-id="25 | 596 | </span><span·class="p"·data-group-id="3225172669-13"><<</span><span·class="s">"foo+bar=1&city=%C3%B6rebro"</span><span·class="p"·data-group-id="3225172669-13">>></span></code></pre> |
| 597 | ··</section> | 597 | ··</section> |
| 598 | </section> | 598 | </section> |
| 599 | <section·class="detail"·id="compose_query/2"> | 599 | <section·class="detail"·id="compose_query/2"> |
| 600 | ··<div·class="detail-header"> | 600 | ··<div·class="detail-header"> |
| 601 | ····<a·href="#compose_query/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 601 | ····<a·href="#compose_query/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 602 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 602 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 632, 20 lines modified | Offset 632, 20 lines modified | ||
| 632 | algorithm.</p><p>There·are·two·supported·encodings:·<code·class="inline">utf8</code>·(or·<code·class="inline">unicode</code>)·and·<code·class="inline">latin1</code>.</p><p>Each·character·in·the·entry's·name·and·value·that·cannot·be·expressed·using·the | 632 | algorithm.</p><p>There·are·two·supported·encodings:·<code·class="inline">utf8</code>·(or·<code·class="inline">unicode</code>)·and·<code·class="inline">latin1</code>.</p><p>Each·character·in·the·entry's·name·and·value·that·cannot·be·expressed·using·the |
| 633 | selected·character·encoding,·is·replaced·by·a·string·consisting·of·a·U+0026 | 633 | selected·character·encoding,·is·replaced·by·a·string·consisting·of·a·U+0026 |
| 634 | AMPERSAND·character·(&),·a·"#"·(U+0023)·character,·one·or·more·ASCII·digits | 634 | AMPERSAND·character·(&),·a·"#"·(U+0023)·character,·one·or·more·ASCII·digits |
| 635 | representing·the·Unicode·code·point·of·the·character·in·base·ten,·and·finally·a | 635 | representing·the·Unicode·code·point·of·the·character·in·base·ten,·and·finally·a |
| 636 | ";"·(U+003B)·character.</p><p>Bytes·that·are·out·of·the·range·0x2A,·0x2D,·0x2E,·0x30·to·0x39,·0x41·to·0x5A, | 636 | ";"·(U+003B)·character.</p><p>Bytes·that·are·out·of·the·range·0x2A,·0x2D,·0x2E,·0x30·to·0x39,·0x41·to·0x5A, |
| 637 | 0x5F,·0x61·to·0x7A,·are·percent-encoded·(U+0025·PERCENT·SIGN·character·(%) | 637 | 0x5F,·0x61·to·0x7A,·are·percent-encoded·(U+0025·PERCENT·SIGN·character·(%) |
| 638 | followed·by·uppercase·ASCII·hex·digits·representing·the·hexadecimal·value·of·the | 638 | followed·by·uppercase·ASCII·hex·digits·representing·the·hexadecimal·value·of·the |
| 639 | byte).</p><p>See·also·the·opposite·operation·<a·href="#dissect_query/1"><code·class="inline">dissect_query/1</code></a>.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">compose_query</span><span·class="p"·data-group-id="4374398622-1">(</span><span·class="p"·data-group-id="4374398622-2">[</span><span·class="p"·data-group-id="4374398622-3">{</span><span·class="s">"foo·bar"</span><span·class="p">,</span><span·class="s">"1"</span><span·class="p"·data-group-id="4374398622-3">}</span><span·class="p">,</span><span·class="p"·data-group-id="4374398622-4">{</span><span·class="s">"city"</span><span·class="p">,</span><span·class="s">"örebro"</span><span·class="p"·data-group-id="4374398622-4">}</span><span·class="p"·data-group-id="4374398622-2">]</span><span·class="p">,</span><span·class="gp·unselectable"> | ||
| 640 | 639 | byte).</p><p>See·also·the·opposite·operation·<a·href="#dissect_query/1"><code·class="inline">dissect_query/1</code></a>.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">[·...·truncated·by·diffoscope;·len:·731,·SHA:·9e3e125854dd57f1fe06c308d38b565cb59073d2e464d46d06019bdd5f3dd1b3·...·]"> | |
| 640 | 1>·</span><span·class="p"·data-group-id="6576263381-5">[</span><span·class="p"·data-group-id="6576263381-6">{</span><span·class="ss">encoding</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">latin1</span><span·class="p"·data-group-id="6576263381-6">}</span><span·class="p"·data-group-id="6576263381-5">]</span><span·class="p"·data-group-id="6576263381-1">)</span><span·class="p">.</span><span·class="w"> | ||
| 641 | </span><span·class="s">"foo+bar=1&city=%F6rebro"</span><span·class="gp·unselectable"> | 641 | </span><span·class="s">"foo+bar=1&city=%F6rebro"</span><span·class="gp·unselectable"> |
| 642 | 2>·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">compose_query</span><span·class="p"·data-group-id=" | 642 | 2>·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">compose_query</span><span·class="p"·data-group-id="6576263381-7">(</span><span·class="p"·data-group-id="6576263381-8">[</span><span·class="p"·data-group-id="6576263381-9">{</span><span·class="p"·data-group-id="6576263381-10"><<</span><span·class="s">"foo·bar"</span><span·class="p"·data-grou[·...·truncated·by·diffoscope;·len:·259,·SHA:·731aab0bdfb489d9d5209b3645d9e3e927ac81469719cd28bedabfc637cc4d77·...·]-9">}</span><span·class="p">,</span><span·class="gp·unselectable"> |
| 643 | 2>·</span><span·class="p"·data-group-id=" | 643 | 2>·</span><span·class="p"·data-group-id="6576263381-12">{</span><span·class="p"·data-group-id="6576263381-13"><<</span><span·class="s">"city"</span><span·class="p"·data-group-id="6576263381-13">>></span><span·class="p">,</span><span·class="p"·data-group-id="6576263381-14">&l[·...·truncated·by·diffoscope;·len:·685,·SHA:·b246ea7272d902fad7b1622ddb3df6c43f5af1a3a1618be693f8b8fe70404290·...·]-7">)</span><span·class="p">.</span><span·class="w"> |
| 644 | </span><span·class="p"·data-group-id=" | 644 | </span><span·class="p"·data-group-id="6576263381-17"><<</span><span·class="s">"foo+bar=1&city=%26%2326481%3B%26%2320140%3B"</span><span·class="p"·data-group-id="6576263381-17">>></span></code></pre> |
| 645 | ··</section> | 645 | ··</section> |
| 646 | </section> | 646 | </section> |
| 647 | <section·class="detail"·id="dissect_query/1"> | 647 | <section·class="detail"·id="dissect_query/1"> |
| 648 | ··<div·class="detail-header"> | 648 | ··<div·class="detail-header"> |
| 649 | ····<a·href="#dissect_query/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 649 | ····<a·href="#dissect_query/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 650 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 650 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 671, 19 lines modified | Offset 671, 19 lines modified | ||
| 671 | ···························QueryList·::·[{<a·href="unicode.html#t:chardata/0">unicode:chardata</a>(),·<a·href="unicode.html#t:chardata/0">unicode:chardata</a>()·|·true}]·|·<a·href="#t:error/0">error</a>().</pre> | 671 | ···························QueryList·::·[{<a·href="unicode.html#t:chardata/0">unicode:chardata</a>(),·<a·href="unicode.html#t:chardata/0">unicode:chardata</a>()·|·true}]·|·<a·href="#t:error/0">error</a>().</pre> |
| 672 | ······</div> | 672 | ······</div> |
| 673 | <p>Dissects·an·urlencoded·<code·class="inline">QueryString</code>·and·returns·a·<code·class="inline">QueryList</code>,·a·list·of | 673 | <p>Dissects·an·urlencoded·<code·class="inline">QueryString</code>·and·returns·a·<code·class="inline">QueryList</code>,·a·list·of |
| 674 | non-percent-encoded·key-value·pairs.</p><p>Form-urlencoding·is·defined·in·section·4.10.21.6·of·the·<a·href="https://www.w3.org/TR/html52/">HTML·5.2</a> | 674 | non-percent-encoded·key-value·pairs.</p><p>Form-urlencoding·is·defined·in·section·4.10.21.6·of·the·<a·href="https://www.w3.org/TR/html52/">HTML·5.2</a> |
| 675 | specification·and·in·section·4.10.22.6·of·the·<a·href="https://www.w3.org/TR/html50/">HTML·5.0</a> | 675 | specification·and·in·section·4.10.22.6·of·the·<a·href="https://www.w3.org/TR/html50/">HTML·5.0</a> |
| 676 | specification·for·non-UTF-8·encodings.</p><p>See·also·the·opposite·operation·<a·href="#compose_query/1"><code·class="inline">compose_query/1</code></a>.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">dissect_query</span><span·class="p"·data-group-id=" | 676 | specification·for·non-UTF-8·encodings.</p><p>See·also·the·opposite·operation·<a·href="#compose_query/1"><code·class="inline">compose_query/1</code></a>.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">dissect_query</span><span·class="p"·data-group-id="7289222629-1">(</span><span·class="s">"foo+bar=1&city=%C3%B6rebro"</span><span·class="p"·data-group-id="7289222629-1">)</span><span·class="p">.</span><span·class="w"> |
| 677 | </span><span·class="p"·data-group-id=" | 677 | </span><span·class="p"·data-group-id="7289222629-2">[</span><span·class="p"·data-group-id="7289222629-3">{</span><span·class="s">"foo·bar"</span><span·class="p">,</span><span·class="s">"1"</span><span·class="p"·data-group-id="7289222629-3">}</span><span·class="p">,</span><s[·...·truncated·by·diffoscope;·len:·249,·SHA:·0004d66b6c5fed502fd5e38a0fcfa796c6a7d9aa8a45bd81e374ae9a545d3c28·...·]-2">]</span><span·class="gp·unselectable"> |
| 678 | 2>·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">dissect_query</span><span·class="p"·data-group-id=" | 678 | 2>·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">dissect_query</span><span·class="p"·data-group-id="7289222629-5">(</span><span·class="p"·data-group-id="7289222629-6"><<</span><span·class="s">"foo+bar=1&city=%26%2326481%3B%26%2320140%3B"</span><span·class="p"·data-group-id="7289222629-6">>></span><span·class="p"·data-group-id="7[·...·truncated·by·diffoscope;·len:·9,·SHA:·d263ae823f37439b61358765df539cb2e3f78f202fea130d2e748085fb3a808d·...·]-5">)</span><span·class="p">.</span><span·class="w"> |
| 679 | </span><span·class="p"·data-group-id=" | 679 | </span><span·class="p"·data-group-id="7289222629-7">[</span><span·class="p"·data-group-id="7289222629-8">{</span><span·class="p"·data-group-id="7289222629-9"><<</span><span·class="s">"foo·bar"</span><span·class="p"·data-group-id="7289222629-9">>></span><span·class="p">,</[·...·truncated·by·diffoscope;·len:·204,·SHA:·1ae13fe8031bba98941708dda7126d90cba27c517e18ec33c84ad01356b5cf87·...·]-8">}</span><span·class="p">,</span><span·class="w"> |
| 680 | ·</span><span·class="p"·data-group-id=" | 680 | ·</span><span·class="p"·data-group-id="7289222629-11">{</span><span·class="p"·data-group-id="7289222629-12"><<</span><span·class="s">"city"</span><span·class="p"·data-group-id="7289222629-12">>></span><span·class="p">,</span><span·class="p"·data-group-id="7289222629-13">&l[·...·truncated·by·diffoscope;·len:·451,·SHA:·2c7f6bc06f366d692f44ecbbc8704e7289001a3187fd2dd1e2b29955776952ef·...·]-7">]</span></code></pre> |
| 681 | ··</section> | 681 | ··</section> |
| 682 | </section> | 682 | </section> |
| 683 | <section·class="detail"·id="normalize/1"> | 683 | <section·class="detail"·id="normalize/1"> |
| 684 | ··<div·class="detail-header"> | 684 | ··<div·class="detail-header"> |
| 685 | ····<a·href="#normalize/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 685 | ····<a·href="#normalize/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 686 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 686 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 707, 22 lines modified | Offset 707, 22 lines modified | ||
| 707 | ···················when·URI·::·<a·href="#t:uri_string/0">uri_string</a>()·|·<a·href="#t:uri_map/0">uri_map</a>(),·NormalizedURI·::·<a·href="#t:uri_string/0">uri_string</a>()·|·<a·href="#t:error/0">error</a>().</pre> | 707 | ···················when·URI·::·<a·href="#t:uri_string/0">uri_string</a>()·|·<a·href="#t:uri_map/0">uri_map</a>(),·NormalizedURI·::·<a·href="#t:uri_string/0">uri_string</a>()·|·<a·href="#t:error/0">error</a>().</pre> |
| 708 | ······</div> | 708 | ······</div> |
| 709 | <p>Transforms·an·<code·class="inline">URI</code>·into·a·normalized·form·using·Syntax-Based·Normalization·as | 709 | <p>Transforms·an·<code·class="inline">URI</code>·into·a·normalized·form·using·Syntax-Based·Normalization·as |
| 710 | defined·by·<a·href="https://www.ietf.org/rfc/rfc3986.txt">RFC·3986</a>.</p><p>This·function·implements·case·normalization,·percent-encoding·normalization, | 710 | defined·by·<a·href="https://www.ietf.org/rfc/rfc3986.txt">RFC·3986</a>.</p><p>This·function·implements·case·normalization,·percent-encoding·normalization, |
| 711 | path·segment·normalization·and·scheme·based·normalization·for·HTTP(S)·with·basic | 711 | path·segment·normalization·and·scheme·based·normalization·for·HTTP(S)·with·basic |
| 712 | support·for·FTP,·SSH,·SFTP·and·TFTP.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">normalize</span><span·class="p"·data-group-id=" | 712 | support·for·FTP,·SSH,·SFTP·and·TFTP.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">normalize</span><span·class="p"·data-group-id="6791158411-1">(</span><span·class="s">"/a/b/c/./../../g"</span><span·class="p"·data-group-id="6791158411-1">)</span><span·class="p">.</span><span·class="w"> |
| 713 | </span><span·class="s">"/a/g"</span><span·class="gp·unselectable"> | 713 | </span><span·class="s">"/a/g"</span><span·class="gp·unselectable"> |
| 714 | 2>·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">normalize</span><span·class="p"·data-group-id=" | 714 | 2>·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">normalize</span><span·class="p"·data-group-id="6791158411-2">(</span><span·class="p"·data-group-id="6791158411-3"><<</span><span·class="s">"mid/content=5/../6"</span><span·class="p"·data-group-id="6791158411-3">>></span><span·class="p"·data-group-id="6791158411-2">)</span><span·class="p">.</span><span·class="w"> |
| 715 | </span><span·class="p"·data-group-id=" | 715 | </span><span·class="p"·data-group-id="6791158411-4"><<</span><span·class="s">"mid/6"</span><span·class="p"·data-group-id="6791158411-4">>></span><span·class="gp·unselectable"> |
| 716 | 3>·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">normalize</span><span·class="p"·data-group-id=" | 716 | 3>·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">normalize</span><span·class="p"·data-group-id="6791158411-5">(</span><span·class="s">"http://localhost:80"</span><span·class="p"·data-group-id="6791158411-5">)</span><span·class="p">.</span><span·class="w"> |
| 717 | </span><span·class="s">"http://localhost/"</span><span·class="gp·unselectable"> | 717 | </span><span·class="s">"http://localhost/"</span><span·class="gp·unselectable"> |
| 718 | 4>·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">normalize</span><span·class="p"·data-group-id=" | 718 | 4>·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">normalize</span><span·class="p"·data-group-id="6791158411-6">(</span><span·class="p"·data-group-id="6791158411-7">#{</span><span·class="ss">scheme</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"http"</span><span·class="p">,</span><span·class="ss">port</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="mi">80</span><span·class="p">,</span><span·class="ss">path</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"/a/b/c/./../../g"</span><span·class="p">,</span><span·class="gp·unselectable"> |
| 719 | 4>·</span><span·class="ss">host</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"localhost-örebro"</span><span·class="p"·data-group-id=" | 719 | 4>·</span><span·class="ss">host</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"localhost-örebro"</span><span·class="p"·data-group-id="6791158411-7">}</span><span·class="p"·data-group-id="6791158411-6">)</span><span·class="p">.</span><span·class="w"> |
| 720 | </span><span·class="s">"http://localhost-%C3%B6rebro/a/g"</span></code></pre> | 720 | </span><span·class="s">"http://localhost-%C3%B6rebro/a/g"</span></code></pre> |
| 721 | ··</section> | 721 | ··</section> |
| 722 | </section> | 722 | </section> |
| 723 | <section·class="detail"·id="normalize/2"> | 723 | <section·class="detail"·id="normalize/2"> |
| 724 | ··<div·class="detail-header"> | 724 | ··<div·class="detail-header"> |
| 725 | ····<a·href="#normalize/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 725 | ····<a·href="#normalize/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| Offset 749, 23 lines modified | Offset 749, 23 lines modified | ||
| 749 | ·······················Options·::·[return_map], | 749 | ·······················Options·::·[return_map], |
| 750 | ·······················NormalizedURI·::·<a·href="#t:uri_string/0">uri_string</a>()·|·<a·href="#t:uri_map/0">uri_map</a>()·|·<a·href="#t:error/0">error</a>().</pre> | 750 | ·······················NormalizedURI·::·<a·href="#t:uri_string/0">uri_string</a>()·|·<a·href="#t:uri_map/0">uri_map</a>()·|·<a·href="#t:error/0">error</a>().</pre> |
| 751 | ······</div> | 751 | ······</div> |
| 752 | <p>Same·as·<a·href="#normalize/1"><code·class="inline">normalize/1</code></a>·but·with·an·additional·<code·class="inline">Options</code> | 752 | <p>Same·as·<a·href="#normalize/1"><code·class="inline">normalize/1</code></a>·but·with·an·additional·<code·class="inline">Options</code> |
| 753 | parameter,·that·controls·whether·the·normalized·URI·shall·be·returned·as·an | 753 | parameter,·that·controls·whether·the·normalized·URI·shall·be·returned·as·an |
| 754 | uri_map().</p><p>There·is·one·supported·option:·<code·class="inline">return_map</code>.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">normalize</span><span·class="p"·data-group-id=" | 754 | uri_map().</p><p>There·is·one·supported·option:·<code·class="inline">return_map</code>.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">normalize</span><span·class="p"·data-group-id="6977958879-1">(</span><span·class="s">"/a/b/c/./../../g"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6977958879-2">[</span><span·class="ss">return_map</span><span·class="p"·data-group-id="6977958879-2">]</[·...·truncated·by·diffoscope;·len:·46,·SHA:·4fc75d43c30a1e3371b8c62457465f166086e1cd6237257b932635b15797b95e·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 755 | </span><span·class="p"·data-group-id=" | 755 | </span><span·class="p"·data-group-id="6977958879-3">#{</span><span·class="ss">path</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"/a/g"</span><span·class="p"·data-group-id="6977958879-3">}</span><span·class="gp·unselectable"> |
| 756 | 2>·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">normalize</span><span·class="p"·data-group-id=" | 756 | 2>·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">normalize</span><span·class="p"·data-group-id="6977958879-4">(</span><span·class="p"·data-group-id="6977958879-5"><<</span><span·class="s">"mid/content=5/../6"</span><span·class="p"·data-group-id="6977958879-5">>></span><span·class="p">,</span><span·class="w">·</span><span·class="[·...·truncated·by·diffoscope;·len:·168,·SHA:·c5789b76c5b1279a02f212959c4f18126c4d67fd06e94513750783b33c5eebad·...·]-4">)</span><span·class="p">.</span><span·class="w"> |
| 757 | </span><span·class="p"·data-group-id=" | 757 | </span><span·class="p"·data-group-id="6977958879-7">#{</span><span·class="ss">path</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="6977958879-8"><<</span><span·class="s">"mid/6"</span><span·class="p"·data-group-id[·...·truncated·by·diffoscope;·len:·72,·SHA:·9c5f81b9de40037218379937b5b68eee06702e6abcb04f14c03fbb497d25144a·...·]-7">}</span><span·class="gp·unselectable"> |
| 758 | 3>·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">normalize</span><span·class="p"·data-group-id=" | 758 | 3>·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">normalize</span><span·class="p"·data-group-id="6977958879-9">(</span><span·class="s">"http://localhost:80"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6977958879-10">[</span><span·class="ss">return_map</span><span·class="p"·data-group-id="6977958879-10[·...·truncated·by·diffoscope;·len:·51,·SHA:·67e2601d0f1980366084be6bd963dea973e4bca6abeab9ed61802e975fddefbe·...·]-9">)</span><span·class="p">.</span><span·class="w"> |
| 759 | </span><span·class="p"·data-group-id=" | 759 | </span><span·class="p"·data-group-id="6977958879-11">#{</span><span·class="ss">scheme</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"http"</span><span·class="p">,</span><span·class="ss">path</span><span·class="w">·</span><span·class[·...·truncated·by·diffoscope;·len:·290,·SHA:·0e5e08e649334c8f37eb4e5b7920a303f263a21c810c7696a7e693bc4d1ed0ef·...·]-11">}</span><span·class="gp·unselectable"> |
| 760 | 4>·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">normalize</span><span·class="p"·data-group-id=" | 760 | 4>·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">normalize</span><span·class="p"·data-group-id="6977958879-12">(</span><span·class="p"·data-group-id="6977958879-13">#{</span><span·class="ss">scheme</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"http"</span><span·class="p">,</span><span·class="ss">port</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="mi">80</span><span·class="p">,</span><span·class="ss">path</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"/a/b/c/./../../g"</span><span·class="p">,</span><span·class="gp·unselectable"> |
| 761 | 4>·</span><span·class="ss">host</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"localhost-örebro"</span><span·class="p"·data-group-id=" | 761 | 4>·</span><span·class="ss">host</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"localhost-örebro"</span><span·class="p"·data-group-id="6977958879-13">}</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6977958879-14">[</span><span·class="ss">return_map</span><span·class="p"·data-group-id="6977958879-14">]</span><span·class="p"·data-group-id="6977958879-12">)</span><span·class="p">.</span><span·class="w"> |
| 762 | </span><span·class="p"·data-group-id=" | 762 | </span><span·class="p"·data-group-id="6977958879-15">#{</span><span·class="ss">scheme</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"http"</span><span·class="p">,</span><span·class="ss">path</span><span·class="w">·</span><span·class[·...·truncated·by·diffoscope;·len:·300,·SHA:·1a7a10fe291325945010ace1041d1912044d28dc4306f425e5653c65984affc4·...·]-15">}</span></code></pre> |
| 763 | ··</section> | 763 | ··</section> |
| 764 | </section> | 764 | </section> |
| 765 | <section·class="detail"·id="parse/1"> | 765 | <section·class="detail"·id="parse/1"> |
| 766 | ··<div·class="detail-header"> | 766 | ··<div·class="detail-header"> |
| 767 | ····<a·href="#parse/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 767 | ····<a·href="#parse/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 768 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 768 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 787, 22 lines modified | Offset 787, 22 lines modified | ||
| 787 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·parse(URIString)·->·URIMap·when·URIString·::·<a·href="#t:uri_string/0">uri_string</a>(),·URIMap·::·<a·href="#t:uri_map/0">uri_map</a>()·|·<a·href="#t:error/0">error</a>().</pre> | 787 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·parse(URIString)·->·URIMap·when·URIString·::·<a·href="#t:uri_string/0">uri_string</a>(),·URIMap·::·<a·href="#t:uri_map/0">uri_map</a>()·|·<a·href="#t:error/0">error</a>().</pre> |
| 788 | ······</div> | 788 | ······</div> |
| 789 | <p>Parses·an·<a·href="https://www.ietf.org/rfc/rfc3986.txt">RFC·3986</a>·compliant | 789 | <p>Parses·an·<a·href="https://www.ietf.org/rfc/rfc3986.txt">RFC·3986</a>·compliant |
| 790 | <a·href="#t:uri_string/0"><code·class="inline">uri_string/0</code></a>·into·a·<a·href="#t:uri_map/0"><code·class="inline">uri_map/0</code></a>,·that·holds·the·parsed·components·of·the | 790 | <a·href="#t:uri_string/0"><code·class="inline">uri_string/0</code></a>·into·a·<a·href="#t:uri_map/0"><code·class="inline">uri_map/0</code></a>,·that·holds·the·parsed·components·of·the |
| 791 | <code·class="inline">URI</code>.·If·parsing·fails,·an·error·tuple·is·returned.</p><p>See·also·the·opposite·operation·<a·href="#recompose/1"><code·class="inline">recompose/1</code></a>.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">parse</span><span·class="p"·data-group-id=" | 791 | <code·class="inline">URI</code>.·If·parsing·fails,·an·error·tuple·is·returned.</p><p>See·also·the·opposite·operation·<a·href="#recompose/1"><code·class="inline">recompose/1</code></a>.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">parse</span><span·class="p"·data-group-id="5560834619-1">(</span><span·class="s">"foo://user@example.com:8042/over/there?name=ferret#nose"</span><span·class="p"·data-group-id="5560834619-1">)</span><span·class="p">.</span><span·class="w"> |
| 792 | </span><span·class="p"·data-group-id=" | 792 | </span><span·class="p"·data-group-id="5560834619-2">#{</span><span·class="ss">fragment</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"nose"</span><span·class="p">,</span><span·class="ss">host</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"example.com"</span><span·class="p">,</span><span·class="w"> |
| 793 | ··</span><span·class="ss">path</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"/over/there"</span><span·class="p">,</span><span·class="ss">port</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="mi">8042</span><span·class="p">,</span><span·class="k">query</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"name=ferret"</span><span·class="p">,</span><span·class="w"> | 793 | ··</span><span·class="ss">path</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"/over/there"</span><span·class="p">,</span><span·class="ss">port</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="mi">8042</span><span·class="p">,</span><span·class="k">query</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"name=ferret"</span><span·class="p">,</span><span·class="w"> |
| 794 | ··</span><span·class="ss">scheme</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">foo</span><span·class="p">,</span><span·class="ss">userinfo</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"user"</span><span·class="p"·data-group-id=" | 794 | ··</span><span·class="ss">scheme</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="ss">foo</span><span·class="p">,</span><span·class="ss">userinfo</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"user"</span><span·class="p"·data-group-id="5560834619-2">}</span><span·class="gp·unselectable"> |
| 795 | 2>·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">parse</span><span·class="p"·data-group-id="1002937433-3">(</span><span·class="p"·data-group-id="1002937433-4"><<</span><span·class="s">"foo://user@example.com:8042/over/there?name=ferret"</span><span·class="p"·data-group-id="1002937433-4">>></span><span·class="p"·data-group-id="1002937433-3">)</span><span·class="p">.</span><span·class="w"> | ||
| 796 | </span><span·class= | 795 | 2>·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">parse</span><span·class="p"·data-group-id="5560834619-3">(</span><span·class="p"·data-group-id="5560834619-4"><<</span><span·class="s">"foo://user@example.co[·...·truncated·by·diffoscope;·len:·172,·SHA:·4a4938769467af5125b5d5ffc4721a9b4a9fbc72f14077e429ccee2c0a17b8ff·...·]</span><span·class="w"> |
| 796 | </span><span·class="p"·data-group-id="5560834619-5">#{</span><span·class="ss">host</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="5560834619-6"><<</span><span·class="s">"example.com"</span><span·class="p"·data-group-id="5560834619-6">>></span><span·class="p">,</span><span·class="ss">path</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="5560834619-7"><<</span><span·class="s">"/over/there"</span><span·class="p"·data-group-id="5560834619-7">>></span><span·class="p">,</span><span·class="w"> | ||
| 797 | ··</span><span·class="ss">port</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="mi">8042</span><span·class="p">,</span><span·class="k">query</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id=" | 797 | ··</span><span·class="ss">port</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="mi">8042</span><span·class="p">,</span><span·class="k">query</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="5560834619-8"><<</span><span·class="s">"name=ferret"</span><span·class="p"·data-group-id="5560834619-8">>></span><span·class="p">,</span><span·class="ss">scheme</span><span·class="w">·</span><span·class="p">=></span><span·class="w"[·...·truncated·by·diffoscope;·len:·148,·SHA:·af49568568fde64ec57e441566114a4400dca850783a5dee6765ae3162bf862b·...·]-9">>></span><span·class="p">,</span><span·class="w"> |
| 798 | ··</span><span·class="ss">userinfo</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id=" | 798 | ··</span><span·class="ss">userinfo</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="p"·data-group-id="5560834619-10"><<</span><span·class="s">"user"</span><span·class="p"·data-group-id="5560834619-10">>></span><span·class="p"·data-group-id="5560834619-5">}</span></code></pre> |
| 799 | ··</section> | 799 | ··</section> |
| 800 | </section> | 800 | </section> |
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| 190 | URI·components·using·<a·href="unicode_usage.html#what-unicode-is">Unicode</a>·characters. | 190 | URI·components·using·<a·href="unicode_usage.html#what-unicode-is">Unicode</a>·characters. |
| 191 | <a·href="uri_string.html#t:uri_map/0"><code·class="inline">uri_map()</code></a>·is·a·convenient·choice·for·enabling | 191 | <a·href="uri_string.html#t:uri_map/0"><code·class="inline">uri_map()</code></a>·is·a·convenient·choice·for·enabling |
| 192 | operations·such·as·producing·standard·compliant·URIs·out·of·components·that·have | 192 | operations·such·as·producing·standard·compliant·URIs·out·of·components·that·have |
| 193 | special·or·<a·href="unicode_usage.html#what-unicode-is">Unicode</a>·characters.·It·is·easier | 193 | special·or·<a·href="unicode_usage.html#what-unicode-is">Unicode</a>·characters.·It·is·easier |
| 194 | to·explain·this·by·an·example.</p><p>Let's·say·that·we·would·like·to·create·the·following·URI·and·send·it·over·the | 194 | to·explain·this·by·an·example.</p><p>Let's·say·that·we·would·like·to·create·the·following·URI·and·send·it·over·the |
| 195 | network:·<code·class="inline">http://cities/örebro?foo·bar</code>.·This·is·not·a·valid·URI·as·it·contains | 195 | network:·<code·class="inline">http://cities/örebro?foo·bar</code>.·This·is·not·a·valid·URI·as·it·contains |
| 196 | characters·that·are·not·allowed·in·a·URI·such·as·"ö"·and·the·space.·We·can | 196 | characters·that·are·not·allowed·in·a·URI·such·as·"ö"·and·the·space.·We·can |
| 197 | verify·this·by·parsing·the·URI:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">··</span><span·class="mi">1</span><span·class="o">></span><span·class="w">·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">parse</span><span·class="p"·data-group-id=" | 197 | verify·this·by·parsing·the·URI:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">··</span><span·class="mi">1</span><span·class="o">></span><span·class="w">·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">parse</span><span·class="p"·data-group-id="8351142381-1">(</span><span·class="s">"http://cities/örebro?foo·bar"</span><span·class="p"·data-group-id="8351142381-1">)</span><span·class="p">.</span><span·class="w"> |
| 198 | ··</span><span·class="p"·data-group-id=" | 198 | ··</span><span·class="p"·data-group-id="8351142381-2">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="ss">invalid_uri</span><span·class="p">,</span><span·class="s">":"</span><span·class="p"·data-group-id="8351142381-2">}</span></code></pre><p>The·URI·parser·tries·all·possible·combinations·to·interpret·the·input·and·fails |
| 199 | at·the·last·attempt·when·it·encounters·the·colon·character·<code·class="inline">":"</code>.·Note,·that·the | 199 | at·the·last·attempt·when·it·encounters·the·colon·character·<code·class="inline">":"</code>.·Note,·that·the |
| 200 | inital·fault·occurs·when·the·parser·attempts·to·interpret·the·character·<code·class="inline">"ö"</code> | 200 | inital·fault·occurs·when·the·parser·attempts·to·interpret·the·character·<code·class="inline">"ö"</code> |
| 201 | and·after·a·failure·back-tracks·to·the·point·where·it·has·another·possible | 201 | and·after·a·failure·back-tracks·to·the·point·where·it·has·another·possible |
| 202 | parsing·alternative.</p><p>The·proper·way·to·solve·this·problem·is·to·use·<a·href="uri_string.html#recompose/1"><code·class="inline">uri_string:recompose/1</code></a>·with·a | 202 | parsing·alternative.</p><p>The·proper·way·to·solve·this·problem·is·to·use·<a·href="uri_string.html#recompose/1"><code·class="inline">uri_string:recompose/1</code></a>·with·a |
| 203 | <a·href="uri_string.html#t:uri_map/0"><code·class="inline">uri_map()</code></a>·as·input:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">··</span><span·class="mi">2</span><span·class="o">></span><span·class="w">·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">recompose</span><span·class="p"·data-group-id="4 | 203 | <a·href="uri_string.html#t:uri_map/0"><code·class="inline">uri_map()</code></a>·as·input:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">··</span><span·class="mi">2</span><span·class="o">></span><span·class="w">·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">recompose</span><span·class="p"·data-group-id="4491631944-1">(</span><span·class="p"·data-group-id="4491631944-2">#{</span><span·class="ss">scheme</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"http"</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">host</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"cities"</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">path</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"/örebro"</span><span·class="p">,</span><span·class="w"> |
| 204 | ··</span><span·class="k">query</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"foo·bar"</span><span·class="p"·data-group-id="4 | 204 | ··</span><span·class="k">query</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"foo·bar"</span><span·class="p"·data-group-id="4491631944-2">}</span><span·class="p"·data-group-id="4491631944-1">)</span><span·class="p">.</span><span·class="w"> |
| 205 | ··</span><span·class="s">"http://cities/%C3%B6rebro?foo%20bar"</span></code></pre><p>The·result·is·a·valid·URI·where·all·the·special·characters·are·encoded·as | 205 | ··</span><span·class="s">"http://cities/%C3%B6rebro?foo%20bar"</span></code></pre><p>The·result·is·a·valid·URI·where·all·the·special·characters·are·encoded·as |
| 206 | defined·by·the·standard.·Applying·<a·href="uri_string.html#parse/1"><code·class="inline">uri_string:parse/1</code></a>·and | 206 | defined·by·the·standard.·Applying·<a·href="uri_string.html#parse/1"><code·class="inline">uri_string:parse/1</code></a>·and |
| 207 | <a·href="uri_string.html#percent_decode/1"><code·class="inline">uri_string:percent_decode/1</code></a>·on·the·URI·returns·the·original·input:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">··</span><span·class="mi">3</span><span·class="o">></span><span·class="w">·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">percent_decode</span><span·class="p"·data-group-id=" | 207 | <a·href="uri_string.html#percent_decode/1"><code·class="inline">uri_string:percent_decode/1</code></a>·on·the·URI·returns·the·original·input:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">··</span><span·class="mi">3</span><span·class="o">></span><span·class="w">·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">percent_decode</span><span·class="p"·data-group-id="3332652823-1">(</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">parse</span><span·class="p"·data-group-id="3332652823-2">(</span><span·class="s">"http://cities/%C3%B6rebro?foo%20bar"</span><span·class="p"·data-gro[·...·truncated·by·diffoscope;·len:·70,·SHA:·95378dc13d130ffc40e50afe430d906965331ed1478789904d717e25db89f7ee·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 208 | ··</span><span·class="p"·data-group-id=" | 208 | ··</span><span·class="p"·data-group-id="3332652823-3">#{</span><span·class="ss">host</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"cities"</span><span·class="p">,</span><span·class="ss">path</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"/örebro"</span><span·class="p">,</span><span·class="k">query</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"foo·bar"</span><span·class="p">,</span><span·class="w"> |
| 209 | ··</span><span·class="ss">scheme</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"http"</span><span·class="p"·data-group-id=" | 209 | ··</span><span·class="ss">scheme</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"http"</span><span·class="p"·data-group-id="3332652823-3">}</span></code></pre><p>This·symmetric·property·is·heavily·used·in·our·property·test·suite.</p><h2·id="percent-encoding"·class="section-heading"> |
| 210 | ··<a·href="#percent-encoding"·class="hover-link"> | 210 | ··<a·href="#percent-encoding"·class="hover-link"> |
| 211 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 211 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 212 | ··</a> | 212 | ··</a> |
| 213 | ··<span·class="text">Percent-encoding</span> | 213 | ··<span·class="text">Percent-encoding</span> |
| 214 | </h2> | 214 | </h2> |
| 215 | <p>As·you·have·seen·in·the·previous·chapter,·a·standard·URI·can·only·contain·a | 215 | <p>As·you·have·seen·in·the·previous·chapter,·a·standard·URI·can·only·contain·a |
| 216 | strict·subset·of·the·US·ASCII·character·set,·moreover·the·allowed·set·of | 216 | strict·subset·of·the·US·ASCII·character·set,·moreover·the·allowed·set·of |
| Offset 225, 72 lines modified | Offset 225, 72 lines modified | ||
| 225 | <a·href="unicode_usage.html#what-unicode-is">Unicode</a>·and·it·is·encoded·using·a·single | 225 | <a·href="unicode_usage.html#what-unicode-is">Unicode</a>·and·it·is·encoded·using·a·single |
| 226 | octet·<code·class="inline">0x20</code>.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p><a·href="unicode_usage.html#what-unicode-is">Unicode</a>·is·backward·compatible·with·ASCII, | 226 | octet·<code·class="inline">0x20</code>.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p><a·href="unicode_usage.html#what-unicode-is">Unicode</a>·is·backward·compatible·with·ASCII, |
| 227 | the·encoding·of·the·first·128·characters·is·the·same·binary·value·as·in·ASCII.</p></section><p><a·href=""·id="percent_encoding"></a>·It·is·a·major·source·of·confusion·exactly·which | 227 | the·encoding·of·the·first·128·characters·is·the·same·binary·value·as·in·ASCII.</p></section><p><a·href=""·id="percent_encoding"></a>·It·is·a·major·source·of·confusion·exactly·which |
| 228 | characters·will·be·percent-encoded.·In·order·to·make·it·easier·to·answer·this | 228 | characters·will·be·percent-encoded.·In·order·to·make·it·easier·to·answer·this |
| 229 | question·the·library·provides·a·utility·function, | 229 | question·the·library·provides·a·utility·function, |
| 230 | <a·href="uri_string.html#allowed_characters/0"><code·class="inline">uri_string:allowed_characters/0</code></a>,·that | 230 | <a·href="uri_string.html#allowed_characters/0"><code·class="inline">uri_string:allowed_characters/0</code></a>,·that |
| 231 | lists·the·allowed·set·of·characters·in·each·major·URI·component,·and·also·in·the | 231 | lists·the·allowed·set·of·characters·in·each·major·URI·component,·and·also·in·the |
| 232 | most·important·standard·character·sets.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">····</span><span·class="mi">1</span><span·class="o">></span><span·class="w">·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">allowed_characters</span><span·class="p"·data-group-id=" | 232 | most·important·standard·character·sets.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">····</span><span·class="mi">1</span><span·class="o">></span><span·class="w">·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">allowed_characters</span><span·class="p"·data-group-id="5412343607-1">(</span><span·class="p"·data-group-id="5412343607-1">)</span><span·class="p">.</span><span·class="w"> |
| 233 | ····</span><span·class="p"·data-group-id=" | 233 | ····</span><span·class="p"·data-group-id="5412343607-2">[</span><span·class="p"·data-group-id="5412343607-3">{</span><span·class="ss">scheme</span><span·class="p">,</span><span·class="w"> |
| 234 | ·····</span><span·class="s">"+-.0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"</span><span·class="p"·data-group-id=" | 234 | ·····</span><span·class="s">"+-.0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"</span><span·class="p"·data-group-id="5412343607-3">}</span><span·class="p">,</span><span·class="w"> |
| 235 | ····</span><span·class="p"·data-group-id=" | 235 | ····</span><span·class="p"·data-group-id="5412343607-4">{</span><span·class="ss">userinfo</span><span·class="p">,</span><span·class="w"> |
| 236 | ·····</span><span·class="s">"!$%&'()*+,-.0123456789:;=ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz~"</span><span·class="p"·data-group-id=" | 236 | ·····</span><span·class="s">"!$%&'()*+,-.0123456789:;=ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz~"</span><span·class="p"·data-group-id="5412343607-4">}</span><span·class="p">,</span><span·class="w"> |
| 237 | ····</span><span·class="p"·data-group-id=" | 237 | ····</span><span·class="p"·data-group-id="5412343607-5">{</span><span·class="ss">host</span><span·class="p">,</span><span·class="w"> |
| 238 | ·····</span><span·class="s">"!$&'()*+,-.0123456789:;=ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz~"</span><span·class="p"·data-group-id=" | 238 | ·····</span><span·class="s">"!$&'()*+,-.0123456789:;=ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz~"</span><span·class="p"·data-group-id="5412343607-5">}</span><span·class="p">,</span><span·class="w"> |
| 239 | ····</span><span·class="p"·data-group-id=" | 239 | ····</span><span·class="p"·data-group-id="5412343607-6">{</span><span·class="ss">ipv4</span><span·class="p">,</span><span·class="s">".0123456789"</span><span·class="p"·data-group-id="5412343607-6">}</span><span·class="p">,</span><span·class="w"> |
| 240 | ····</span><span·class="p"·data-group-id=" | 240 | ····</span><span·class="p"·data-group-id="5412343607-7">{</span><span·class="ss">ipv6</span><span·class="p">,</span><span·class="s">".0123456789:ABCDEFabcdef"</span><span·class="p"·data-group-id="5412343607-7">}</span><span·class="p">,</span><span·class="w"> |
| 241 | ····</span><span·class="p"·data-group-id=" | 241 | ····</span><span·class="p"·data-group-id="5412343607-8">{</span><span·class="ss">regname</span><span·class="p">,</span><span·class="w"> |
| 242 | ·····</span><span·class="s">"!$%&'()*+,-.0123456789;=ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz~"</span><span·class="p"·data-group-id=" | 242 | ·····</span><span·class="s">"!$%&'()*+,-.0123456789;=ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz~"</span><span·class="p"·data-group-id="5412343607-8">}</span><span·class="p">,</span><span·class="w"> |
| 243 | ····</span><span·class="p"·data-group-id=" | 243 | ····</span><span·class="p"·data-group-id="5412343607-9">{</span><span·class="ss">path</span><span·class="p">,</span><span·class="w"> |
| 244 | ·····</span><span·class="s">"!$%&'()*+,-./0123456789:;=@ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz~"</span><span·class="p"·data-group-id=" | 244 | ·····</span><span·class="s">"!$%&'()*+,-./0123456789:;=@ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz~"</span><span·class="p"·data-group-id="5412343607-9">}</span><span·class="p">,</span><span·class="w"> |
| 245 | ····</span><span·class="p"·data-group-id=" | 245 | ····</span><span·class="p"·data-group-id="5412343607-10">{</span><span·class="k">query</span><span·class="p">,</span><span·class="w"> |
| 246 | ·····</span><span·class="s">"!$%&'()*+,-./0123456789:;=?@ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz~"</span><span·class="p"·data-group-id=" | 246 | ·····</span><span·class="s">"!$%&'()*+,-./0123456789:;=?@ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz~"</span><span·class="p"·data-group-id="5412343607-10">}</span><span·class="p">,</span><span·class="w"> |
| 247 | ····</span><span·class="p"·data-group-id=" | 247 | ····</span><span·class="p"·data-group-id="5412343607-11">{</span><span·class="ss">fragment</span><span·class="p">,</span><span·class="w"> |
| 248 | ·····</span><span·class="s">"!$%&'()*+,-./0123456789:;=?@ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz~"</span><span·class="p"·data-group-id=" | 248 | ·····</span><span·class="s">"!$%&'()*+,-./0123456789:;=?@ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz~"</span><span·class="p"·data-group-id="5412343607-11">}</span><span·class="p">,</span><span·class="w"> |
| 249 | ····</span><span·class="p"·data-group-id=" | 249 | ····</span><span·class="p"·data-group-id="5412343607-12">{</span><span·class="ss">reserved</span><span·class="p">,</span><span·class="s">"!#$&'()*+,/:;=?@[]"</span><span·class="p"·data-group-id="5412343607-12">}</span><span·class="p">,</span><span·class="w"> |
| 250 | ····</span><span·class="p"·data-group-id=" | 250 | ····</span><span·class="p"·data-group-id="5412343607-13">{</span><span·class="ss">unreserved</span><span·class="p">,</span><span·class="w"> |
| 251 | ·····</span><span·class="s">"-.0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz~"</span><span·class="p"·data-group-id=" | 251 | ·····</span><span·class="s">"-.0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz~"</span><span·class="p"·data-group-id="5412343607-13">}</span><span·class="p"·data-group-id="5412343607-2">]</span></code></pre><p>If·a·URI·component·has·a·character·that·is·not·allowed,·it·will·be |
| 252 | percent-encoded·when·the·URI·is·produced:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">····</span><span·class="mi">2</span><span·class="o">></span><span·class="w">·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">recompose</span><span·class="p"·data-group-id=" | 252 | percent-encoded·when·the·URI·is·produced:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">····</span><span·class="mi">2</span><span·class="o">></span><span·class="w">·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">recompose</span><span·class="p"·data-group-id="2069670499-1">(</span><span·class="p"·data-group-id="2069670499-2">#{</span><span·class="ss">scheme</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"https"</span><span·class="p">,</span><span·clas[·...·truncated·by·diffoscope;·len:·443,·SHA:·1dabcd3d8ca35d3f9c4ab66fb25b2e684f79767c4815c0aef9132bda392eceac·...·]9-1">)</span><span·class="p">.</span><span·class="w"> |
| 253 | ····</span><span·class="s">"https://local%23host"</span></code></pre><p>Consuming·a·URI·containing·percent-encoded·triplets·can·take·many·steps.·The | 253 | ····</span><span·class="s">"https://local%23host"</span></code></pre><p>Consuming·a·URI·containing·percent-encoded·triplets·can·take·many·steps.·The |
| 254 | following·example·shows·how·to·handle·an·input·URI·that·is·not·normalized·and | 254 | following·example·shows·how·to·handle·an·input·URI·that·is·not·normalized·and |
| 255 | contains·multiple·percent-encoded·triplets.·First,·the·input | 255 | contains·multiple·percent-encoded·triplets.·First,·the·input |
| 256 | <a·href="uri_string.html#t:uri_string/0"><code·class="inline">uri_string()</code></a>·is·to·be·parsed·into·a | 256 | <a·href="uri_string.html#t:uri_string/0"><code·class="inline">uri_string()</code></a>·is·to·be·parsed·into·a |
| 257 | <a·href="uri_string.html#t:uri_map/0"><code·class="inline">uri_map()</code></a>.·The·parsing·only·splits·the·URI·into | 257 | <a·href="uri_string.html#t:uri_map/0"><code·class="inline">uri_map()</code></a>.·The·parsing·only·splits·the·URI·into |
| 258 | its·components·without·doing·any·decoding:</p><pre><code·class="text">····3>·uri_string:parse("http://%6C%6Fcal%23host/%F6re%26bro%20"). | 258 | its·components·without·doing·any·decoding:</p><pre><code·class="text">····3>·uri_string:parse("http://%6C%6Fcal%23host/%F6re%26bro%20"). |
| 259 | ····#{host·=>·"%6C%6Fcal%23host",path·=>·"/%F6re%26bro%20", | 259 | ····#{host·=>·"%6C%6Fcal%23host",path·=>·"/%F6re%26bro%20", |
| 260 | ······scheme·=>·"http"}}</code></pre><p>The·input·is·a·valid·URI·but·how·can·you·decode·those·percent-encoded·octets? | 260 | ······scheme·=>·"http"}}</code></pre><p>The·input·is·a·valid·URI·but·how·can·you·decode·those·percent-encoded·octets? |
| 261 | You·can·try·to·normalize·the·input·with·<a·href="uri_string.html#normalize/1"><code·class="inline">uri_string:normalize/1</code></a>.·The·normalize | 261 | You·can·try·to·normalize·the·input·with·<a·href="uri_string.html#normalize/1"><code·class="inline">uri_string:normalize/1</code></a>.·The·normalize |
| 262 | operation·decodes·those·percent-encoded·triplets·that·correspond·to·a·character | 262 | operation·decodes·those·percent-encoded·triplets·that·correspond·to·a·character |
| 263 | in·the·unreserved·set.·Normalization·is·a·safe,·idempotent·operation·that | 263 | in·the·unreserved·set.·Normalization·is·a·safe,·idempotent·operation·that |
| 264 | converts·a·URI·into·its·canonical·form:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">····</span><span·class="mi">4</span><span·class="o">></span><span·class="w">·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">normalize</span><span·class="p"·data-group-id="7 | 264 | converts·a·URI·into·its·canonical·form:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">····</span><span·class="mi">4</span><span·class="o">></span><span·class="w">·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">normalize</span><span·class="p"·data-group-id="7891404445-1">(</span><span·class="s">"http://%6C%6Fcal%23host/%F6re%26bro%20"</span><span·class="p"·data-group-id="7891404445-1">)</span><span·class="p">.</span><span·class="w"> |
| 265 | ····</span><span·class="s">"http://local%23host/%F6re%26bro%20"</span><span·class="w"> | 265 | ····</span><span·class="s">"http://local%23host/%F6re%26bro%20"</span><span·class="w"> |
| 266 | ····</span><span·class="mi">5</span><span·class="o">></span><span·class="w">·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">normalize</span><span·class="p"·data-group-id="7 | 266 | ····</span><span·class="mi">5</span><span·class="o">></span><span·class="w">·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">normalize</span><span·class="p"·data-group-id="7891404445-2">(</span><span·class="s">"http://%6C%6Fcal%23host/%F6re%26bro%20"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="7891404445-3">[</span><span·class="ss">return_map</span><span·class="p"·data-group-[·...·truncated·by·diffoscope;·len:·67,·SHA:·4ed6894e4ab6ca736d022d4dcd2b33d40bb4945bfec57875075d36d7dccf831f·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 267 | ····</span><span·class="p"·data-group-id="7 | 267 | ····</span><span·class="p"·data-group-id="7891404445-4">#{</span><span·class="ss">host</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"local%23host"</span><span·class="p">,</span><span·class="ss">path</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"/%F6re%26bro%20"</span><span·class="p">,</span><span·class="w"> |
| 268 | ······</span><span·class="ss">scheme</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"http"</span><span·class="p"·data-group-id="7 | 268 | ······</span><span·class="ss">scheme</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"http"</span><span·class="p"·data-group-id="7891404445-4">}</span></code></pre><p>There·are·still·a·few·percent-encoded·triplets·left·in·the·output.·At·this |
| 269 | point,·when·the·URI·is·already·parsed,·it·is·safe·to·apply·application·specific | 269 | point,·when·the·URI·is·already·parsed,·it·is·safe·to·apply·application·specific |
| 270 | decoding·on·the·remaining·character·triplets.·Erlang/OTP·provides·a·function, | 270 | decoding·on·the·remaining·character·triplets.·Erlang/OTP·provides·a·function, |
| 271 | <a·href="uri_string.html#percent_decode/1"><code·class="inline">uri_string:percent_decode/1</code></a>·for·raw·percent·decoding·that·you·can·use·on·the | 271 | <a·href="uri_string.html#percent_decode/1"><code·class="inline">uri_string:percent_decode/1</code></a>·for·raw·percent·decoding·that·you·can·use·on·the |
| 272 | host·and·path·components,·or·on·the·whole·map:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">····</span><span·class="mi">6</span><span·class="o">></span><span·class="w">·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">percent_decode</span><span·class="p"·data-group-id=" | 272 | host·and·path·components,·or·on·the·whole·map:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">····</span><span·class="mi">6</span><span·class="o">></span><span·class="w">·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">percent_decode</span><span·class="p"·data-group-id="5951673361-1">(</span><span·class="s">"local%23host"</span><span·class="p"·data-group-id="5951673361-1">)</span><span·class="p">.</span><span·class="w"> |
| 273 | ····</span><span·class="s">"local#host"</span><span·class="w"> | 273 | ····</span><span·class="s">"local#host"</span><span·class="w"> |
| 274 | ····</span><span·class="mi">7</span><span·class="o">></span><span·class="w">·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">percent_decode</span><span·class="p"·data-group-id=" | 274 | ····</span><span·class="mi">7</span><span·class="o">></span><span·class="w">·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">percent_decode</span><span·class="p"·data-group-id="5951673361-2">(</span><span·class="s">"/%F6re%26bro%20"</span><span·class="p"·data-group-id="5951673361-2">)</span><span·class="p">.</span><span·class="w"> |
| 275 | ····</span><span·class="p"·data-group-id=" | 275 | ····</span><span·class="p"·data-group-id="5951673361-3">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="ss">invalid_utf8</span><span·class="p">,</span><span·class="p"·data-group-id="5951673361-4"><<</span><span·class="s">"/öre&bro·"</span><span·class="[·...·truncated·by·diffoscope;·len:·88,·SHA:·8e65fe33f3b6ecc70a2d6cffc9ca9d0e53d566ccfc2b1dfae428c5640d02f2d4·...·]-3">}</span><span·class="w"> |
| 276 | ····</span><span·class="mi">8</span><span·class="o">></span><span·class="w">·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">percent_decode</span><span·class="p"·data-group-id=" | 276 | ····</span><span·class="mi">8</span><span·class="o">></span><span·class="w">·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">percent_decode</span><span·class="p"·data-group-id="5951673361-5">(</span><span·class="p"·data-group-id="5951673361-6">#{</span><span·class="ss">host</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"local%23host"</span><span·class="p">,</span><span·class="ss">path</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"/%F6re%26bro%20"</span><span·class="p">,</span><span·class="w"> |
| 277 | ····</span><span·class="ss">scheme</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"http"</span><span·class="p"·data-group-id=" | 277 | ····</span><span·class="ss">scheme</span><span·class="w">·</span><span·class="p">=></span><span·class="w">·</span><span·class="s">"http"</span><span·class="p"·data-group-id="5951673361-6">}</span><span·class="p"·data-group-id="5951673361-5">)</span><span·class="p">.</span><span·class="w"> |
| 278 | ····</span><span·class="p"·data-group-id=" | 278 | ····</span><span·class="p"·data-group-id="5951673361-7">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="p"·data-group-id="5951673361-8">{</span><span·class="ss">invalid</span><span·class="p">,</span><span·class="p"·data-group-id="5951673361-9">{</span><span·class="ss">pat[·...·truncated·by·diffoscope;·len:·517,·SHA:·44fc5caf33d4c4154f143d2e22fc139105d01b290c80716004be8aea6bdc90a8·...·]-7">}</span></code></pre><p>The·<code·class="inline">host</code>·was·successfully·decoded·but·the·path·contains·at·least·one·character |
| 279 | with·non-UTF-8·encoding.·In·order·to·be·able·to·decode·this,·you·have·to·make | 279 | with·non-UTF-8·encoding.·In·order·to·be·able·to·decode·this,·you·have·to·make |
| 280 | assumptions·about·the·encoding·used·in·these·triplets.·The·most·obvious·choice | 280 | assumptions·about·the·encoding·used·in·these·triplets.·The·most·obvious·choice |
| 281 | is·<em>latin-1</em>,·so·you·can·try·<a·href="uri_string.html#transcode/2"><code·class="inline">uri_string:transcode/2</code></a>,·to·transcode·the·path·to | 281 | is·<em>latin-1</em>,·so·you·can·try·<a·href="uri_string.html#transcode/2"><code·class="inline">uri_string:transcode/2</code></a>,·to·transcode·the·path·to |
| 282 | UTF-8·and·run·the·percent-decode·operation·on·the·transcoded·string:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">····</span><span·class="mi">9</span><span·class="o">></span><span·class="w">·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">transcode</span><span·class="p"·data-group-id=" | 282 | UTF-8·and·run·the·percent-decode·operation·on·the·transcoded·string:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">····</span><span·class="mi">9</span><span·class="o">></span><span·class="w">·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">transcode</span><span·class="p"·data-group-id="4283169882-1">(</span><span·class="s">"/%F6re%26bro%20"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="4283169882-2">[</span><span·class="p"·data-group-id="4283169882-3">{</span><span·class="ss">in_encoding</[·...·truncated·by·diffoscope;·len:·230,·SHA:·5d08b762738478157e2f08cf8ad1bea808d3d35345d9a5f581a45835b0619da7·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 283 | ····</span><span·class="s">"/%C3%B6re%26bro%20"</span><span·class="w"> | 283 | ····</span><span·class="s">"/%C3%B6re%26bro%20"</span><span·class="w"> |
| 284 | ····</span><span·class="mi">10</span><span·class="o">></span><span·class="w">·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">percent_decode</span><span·class="p"·data-group-id=" | 284 | ····</span><span·class="mi">10</span><span·class="o">></span><span·class="w">·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">percent_decode</span><span·class="p"·data-group-id="4283169882-4">(</span><span·class="s">"/%C3%B6re%26bro%20"</span><span·class="p"·data-group-id="4283169882-4">)</span><span·class="p">.</span><span·class="w"> |
| 285 | ····</span><span·class="s">"/öre&bro·"</span></code></pre><p>It·is·important·to·emphasize·that·it·is·not·safe·to·apply | 285 | ····</span><span·class="s">"/öre&bro·"</span></code></pre><p>It·is·important·to·emphasize·that·it·is·not·safe·to·apply |
| 286 | <a·href="uri_string.html#percent_decode/1"><code·class="inline">uri_string:percent_decode/1</code></a>·directly·on·an·input·URI:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">····</span><span·class="mi">11</span><span·class="o">></span><span·class="w">·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">percent_decode</span><span·class="p"·data-group-id=" | 286 | <a·href="uri_string.html#percent_decode/1"><code·class="inline">uri_string:percent_decode/1</code></a>·directly·on·an·input·URI:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">····</span><span·class="mi">11</span><span·class="o">></span><span·class="w">·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">percent_decode</span><span·class="p"·data-group-id="3619208766-1">(</span><span·class="s">"http://%6C%6Fcal%23host/%C3%B6re%26bro%20"</span><span·class="p"·data-group-id="3619208766-1">)</span><span·class="p">.</span><span·class="w"> |
| 287 | ····</span><span·class="s">"http://local#host/öre&bro·"</span><span·class="w"> | 287 | ····</span><span·class="s">"http://local#host/öre&bro·"</span><span·class="w"> |
| 288 | ····</span><span·class="mi">12</span><span·class="o">></span><span·class="w">·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">parse</span><span·class="p"·data-group-id=" | 288 | ····</span><span·class="mi">12</span><span·class="o">></span><span·class="w">·</span><span·class="nc">uri_string</span><span·class="p">:</span><span·class="nf">parse</span><span·class="p"·data-group-id="3619208766-2">(</span><span·class="s">"http://local#host/öre&bro·"</span><span·class="p"·data-group-id="3619208766-2">)</span><span·class="p">.</span><span·class="w"> |
| 289 | ····</span><span·class="p"·data-group-id=" | 289 | ····</span><span·class="p"·data-group-id="3619208766-3">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="ss">invalid_uri</span><span·class="p">,</span><span·class="s">":"</span><span·class="p"·data-group-id="3619208766-3">}</span></code></pre><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>Percent-encoding·is·implemented·in·<a·href="uri_string.html#recompose/1"><code·class="inline">uri_string:recompose/1</code></a>·and·it·happens |
| 290 | when·converting·a·<a·href="uri_string.html#t:uri_map/0"><code·class="inline">uri_map()</code></a>·into·a | 290 | when·converting·a·<a·href="uri_string.html#t:uri_map/0"><code·class="inline">uri_map()</code></a>·into·a |
| 291 | <a·href="uri_string.html#t:uri_string/0"><code·class="inline">uri_string()</code></a>.·Applying·any·percent-encoding | 291 | <a·href="uri_string.html#t:uri_string/0"><code·class="inline">uri_string()</code></a>.·Applying·any·percent-encoding |
| 292 | directly·on·an·input·URI·would·not·be·safe·just·as·in·the·case·of | 292 | directly·on·an·input·URI·would·not·be·safe·just·as·in·the·case·of |
| 293 | <a·href="uri_string.html#percent_decode/1"><code·class="inline">uri_string:percent_decode/1</code></a>,·the·output·could·be·an·invalid·URI.·Quoting | 293 | <a·href="uri_string.html#percent_decode/1"><code·class="inline">uri_string:percent_decode/1</code></a>,·the·output·could·be·an·invalid·URI.·Quoting |
| 294 | functions·allow·users·to·perform·raw·percent·encoding·and·decoding·on | 294 | functions·allow·users·to·perform·raw·percent·encoding·and·decoding·on |
| 295 | application·data·which·cannot·be·handled·automatically·by | 295 | application·data·which·cannot·be·handled·automatically·by |
| 296 | <a·href="uri_string.html#recompose/1"><code·class="inline">uri_string:recompose/1</code></a>.·For·example·in·scenario·when·user·would·need·to·use | 296 | <a·href="uri_string.html#recompose/1"><code·class="inline">uri_string:recompose/1</code></a>.·For·example·in·scenario·when·user·would·need·to·use |
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| 378 | ······<p·class="built-using"> | 378 | ······<p·class="built-using"> |
| 379 | ········Built·using | 379 | ········Built·using |
| 380 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 380 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 381 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 381 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 382 | ······</p> | 382 | ······</p> |
| 383 | <p>Copyright·©·1996-202 | 383 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 384 | ····</footer> | 384 | ····</footer> |
| 385 | ··</div> | 385 | ··</div> |
| 386 | </main> | 386 | </main> |
| 387 | </div> | 387 | </div> |
| 388 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 388 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 389 | ··<script> | 389 | ··<script> |
| 390 | ··let·initialized·=·false; | 390 | ··let·initialized·=·false; |
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| 882 | ······<p·class="built-using"> | 882 | ······<p·class="built-using"> |
| 883 | ········Built·using | 883 | ········Built·using |
| 884 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 884 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 885 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 885 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 886 | ······</p> | 886 | ······</p> |
| 887 | <p>Copyright·©·1996-202 | 887 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 888 | ····</footer> | 888 | ····</footer> |
| 889 | ··</div> | 889 | ··</div> |
| 890 | </main> | 890 | </main> |
| 891 | </div> | 891 | </div> |
| 892 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 892 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 893 | ··<script> | 893 | ··<script> |
| 894 | ··let·initialized·=·false; | 894 | ··let·initialized·=·false; |
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| 1020 | <code·class="inline">Archive</code>,·starting·with·<code·class="inline">AccIn·==·Acc0</code>.</p><p><code·class="inline">FileInArchive</code>·is·the·name·that·the·file·has·in·the·archive.</p><p><code·class="inline">GetInfo</code>·is·a·fun·that·returns·information·about·the·file.</p><p><code·class="inline">GetBin</code>·returns·the·file·contents.</p><p>Both·<code·class="inline">GetInfo</code>·and·<code·class="inline">GetBin</code>·must·be·called·within·the·<code·class="inline">Fun</code>.·Their·behavior·is | 1020 | <code·class="inline">Archive</code>,·starting·with·<code·class="inline">AccIn·==·Acc0</code>.</p><p><code·class="inline">FileInArchive</code>·is·the·name·that·the·file·has·in·the·archive.</p><p><code·class="inline">GetInfo</code>·is·a·fun·that·returns·information·about·the·file.</p><p><code·class="inline">GetBin</code>·returns·the·file·contents.</p><p>Both·<code·class="inline">GetInfo</code>·and·<code·class="inline">GetBin</code>·must·be·called·within·the·<code·class="inline">Fun</code>.·Their·behavior·is |
| 1021 | undefined·if·they·are·called·outside·the·context·of·<code·class="inline">Fun</code>.</p><p>The·<code·class="inline">Fun</code>·must·return·a·new·accumulator,·which·is·passed·to·the·next·call. | 1021 | undefined·if·they·are·called·outside·the·context·of·<code·class="inline">Fun</code>.</p><p>The·<code·class="inline">Fun</code>·must·return·a·new·accumulator,·which·is·passed·to·the·next·call. |
| 1022 | <a·href="#foldl/3"><code·class="inline">foldl/3</code></a>·returns·the·final·accumulator·value.·<code·class="inline">Acc0</code>·is·returned | 1022 | <a·href="#foldl/3"><code·class="inline">foldl/3</code></a>·returns·the·final·accumulator·value.·<code·class="inline">Acc0</code>·is·returned |
| 1023 | if·the·archive·is·empty.·It·is·not·necessary·to·iterate·over·all·files·in·the | 1023 | if·the·archive·is·empty.·It·is·not·necessary·to·iterate·over·all·files·in·the |
| 1024 | archive.·The·iteration·can·be·ended·prematurely·in·a·controlled·manner·by | 1024 | archive.·The·iteration·can·be·ended·prematurely·in·a·controlled·manner·by |
| 1025 | throwing·an·exception.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="n">Name</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"dummy.zip"</span><span·class="p">.</span><span·class="w"> | 1025 | throwing·an·exception.</p><p><em>Example:</em></p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">>·</span><span·class="n">Name</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="s">"dummy.zip"</span><span·class="p">.</span><span·class="w"> |
| 1026 | </span><span·class="s">"dummy.zip"</span><span·class="gp·unselectable"> | 1026 | </span><span·class="s">"dummy.zip"</span><span·class="gp·unselectable"> |
| 1027 | >·</span><span·class="p"·data-group-id=" | 1027 | >·</span><span·class="p"·data-group-id="6299123013-1">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6299123013-2">{</span><span·class="n">Name</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Bin</span><span·[·...·truncated·by·diffoscope;·len:·1460,·SHA:·7e155296c4991e53e7b7d0a74356424ed7a6509602feb8d4423216029353fde3·...·]-3">)</span><span·class="p">.</span><span·class="w"> |
| 1028 | </span><span·class="p"·data-group-id=" | 1028 | </span><span·class="p"·data-group-id="6299123013-10">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="p"·data-group-id="6299123013-11">{</span><span·class="s">"dummy.zip"</span><span·class="p">,</span><span·class="w"> |
| 1029 | ·····</span><span·class="p"·data-group-id=" | 1029 | ·····</span><span·class="p"·data-group-id="6299123013-12"><<</span><span·class="mi">80</span><span·class="p">,</span><span·class="mi">75</span><span·class="p">,</span><span·class="mi">3</span><span·class="p">,</span><span·class="mi">4</span><span·class="p">,</span><span·class="mi">20</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">74</span><span·class="p">,</span><span·class="mi">152</span><span·class="p">,</span><span·class="mi">97</span><span·class="p">,</span><span·class="mi">60</span><span·class="p">,</span><span·class="mi">171</span><span·class="p">,</span><span·class="mi">39</span><span·class="p">,</span><span·class="mi">212</span><span·class="p">,</span><span·class="mi">26</span><span·class="p">,</span><span·class="mi">3</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="w"> |
| 1030 | ·······</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">3</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p"·data-group-id=" | 1030 | ·······</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">3</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p"·data-group-id="6299123013-12">>></span><span·class="p"·data-group-id="6299123013-11">}</span><span·class="p"·data-group-id="6299123013-10">}</span><span·class="gp·unselectable"> |
| 1031 | >·</span><span·class="p"·data-group-id=" | 1031 | >·</span><span·class="p"·data-group-id="6299123013-13">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">FileSpec</span><span·class="p"·data-group-id="6299123013-13">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><s[·...·truncated·by·diffoscope;·len:·1787,·SHA:·60550c4b20eebb1074bf6286fc8f17383ba25903fabdc7d36f594c0b58658267·...·]-14">)</span><span·class="p">.</span><span·class="w"> |
| 1032 | </span><span·class="p"·data-group-id=" | 1032 | </span><span·class="p"·data-group-id="6299123013-22">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="p"·data-group-id="6299123013-23">[</span><span·class="p"·data-group-id="6299123013-24">{</span><span·class="s">"bar"</span><span·class="p">,</span><span·class="[·...·truncated·by·diffoscope;·len:·127,·SHA:·7bf80c4a74447912551d68916bee7a0dabf2f59c6a2dd0187c102a621f777fc3·...·]-25">>></span><span·class="p">,</span><span·class="w"> |
| 1033 | ······</span><span·class="p"·data-group-id=" | 1033 | ······</span><span·class="p"·data-group-id="6299123013-26">{</span><span·class="ss">file_info</span><span·class="p">,</span><span·class="mi">3</span><span·class="p">,</span><span·class="ss">regular</span><span·class="p">,</span><span·class="ss">read_write</span><span·class="p">,</span><span·class="w"> |
| 1034 | ·················</span><span·class="p"·data-group-id=" | 1034 | ·················</span><span·class="p"·data-group-id="6299123013-27">{</span><span·class="p"·data-group-id="6299123013-28">{</span><span·class="mi">2010</span><span·class="p">,</span><span·class="mi">3</span><span·class="p">,</span><span·class="mi">1</span><span·class="p"·data-group-id="6299123013-28">}</span[·...·truncated·by·diffoscope;·len:·299,·SHA:·d011045901a83e203201f0367df38a781b928a5b3a6577d25e41e21e3e0f6c92·...·]-27">}</span><span·class="p">,</span><span·class="w"> |
| 1035 | ·················</span><span·class="p"·data-group-id=" | 1035 | ·················</span><span·class="p"·data-group-id="6299123013-30">{</span><span·class="p"·data-group-id="6299123013-31">{</span><span·class="mi">2010</span><span·class="p">,</span><span·class="mi">3</span><span·class="p">,</span><span·class="mi">1</span><span·class="p"·data-group-id="6299123013-31">}</span[·...·truncated·by·diffoscope;·len:·299,·SHA:·639fb1dc56f293b0f4fb03b07c24d812fcaa9b0c8f2c06a4ca2629267e392514·...·]-30">}</span><span·class="p">,</span><span·class="w"> |
| 1036 | ·················</span><span·class="p"·data-group-id=" | 1036 | ·················</span><span·class="p"·data-group-id="6299123013-33">{</span><span·class="p"·data-group-id="6299123013-34">{</span><span·class="mi">2010</span><span·class="p">,</span><span·class="mi">3</span><span·class="p">,</span><span·class="mi">1</span><span·class="p"·data-group-id="6299123013-34">}</span[·...·truncated·by·diffoscope;·len:·299,·SHA:·26972d4a4475bf4ab56b948b0d447929bad05d69c1225631eea6a616bb1749ac·...·]-33">}</span><span·class="p">,</span><span·class="w"> |
| 1037 | ·················</span><span·class="mi">54</span><span·class="p">,</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p"·data-group-id=" | 1037 | ·················</span><span·class="mi">54</span><span·class="p">,</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p"·data-group-id="6299123013-26">}</span><span·class="p"·data-group-id="6299123013-24">}</span><span·class="p">,</span><span·class="w"> |
| 1038 | ·····</span><span·class="p"·data-group-id=" | 1038 | ·····</span><span·class="p"·data-group-id="6299123013-36">{</span><span·class="s">"foo"</span><span·class="p">,</span><span·class="p"·data-group-id="6299123013-37"><<</span><span·class="s">"FOO"</span><span·class="p"·data-group-id="6299123013-37">>></span><span·class="p">,</span><span·class="w"> |
| 1039 | ······</span><span·class="p"·data-group-id=" | 1039 | ······</span><span·class="p"·data-group-id="6299123013-38">{</span><span·class="ss">file_info</span><span·class="p">,</span><span·class="mi">3</span><span·class="p">,</span><span·class="ss">regular</span><span·class="p">,</span><span·class="ss">read_write</span><span·class="p">,</span><span·class="w"> |
| 1040 | ·················</span><span·class="p"·data-group-id=" | 1040 | ·················</span><span·class="p"·data-group-id="6299123013-39">{</span><span·class="p"·data-group-id="6299123013-40">{</span><span·class="mi">2010</span><span·class="p">,</span><span·class="mi">3</span><span·class="p">,</span><span·class="mi">1</span><span·class="p"·data-group-id="6299123013-40">}</span[·...·truncated·by·diffoscope;·len:·299,·SHA:·1305e701fc76c6c9f1831a0c24e1bd8565bf3787d47acdad5a6e84b0a50e7c34·...·]-39">}</span><span·class="p">,</span><span·class="w"> |
| 1041 | ·················</span><span·class="p"·data-group-id=" | 1041 | ·················</span><span·class="p"·data-group-id="6299123013-42">{</span><span·class="p"·data-group-id="6299123013-43">{</span><span·class="mi">2010</span><span·class="p">,</span><span·class="mi">3</span><span·class="p">,</span><span·class="mi">1</span><span·class="p"·data-group-id="6299123013-43">}</span[·...·truncated·by·diffoscope;·len:·299,·SHA:·ad6404fef472cd2e322cce9d673f4e32d482018614d1058da5dd97f5b21af09b·...·]-42">}</span><span·class="p">,</span><span·class="w"> |
| 1042 | ·················</span><span·class="p"·data-group-id=" | 1042 | ·················</span><span·class="p"·data-group-id="6299123013-45">{</span><span·class="p"·data-group-id="6299123013-46">{</span><span·class="mi">2010</span><span·class="p">,</span><span·class="mi">3</span><span·class="p">,</span><span·class="mi">1</span><span·class="p"·data-group-id="6299123013-46">}</span[·...·truncated·by·diffoscope;·len:·299,·SHA:·50493edbf50ead4c84c7e71c6be71e41022d2695206545c0242411c57e641b8c·...·]-45">}</span><span·class="p">,</span><span·class="w"> |
| 1043 | ·················</span><span·class="mi">54</span><span·class="p">,</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p"·data-group-id=" | 1043 | ·················</span><span·class="mi">54</span><span·class="p">,</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p"·data-group-id="6299123013-38">}</span><span·class="p"·data-group-id="6299123013-36">}</span><span·class="p"·data-group-id="6299123013-23">]</span><span·class="p"·data-group-id="6299123013-22">}</span><span·class="gp·unselectable"> |
| 1044 | >·</span><span·class="p"·data-group-id=" | 1044 | >·</span><span·class="p"·data-group-id="6299123013-48">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6299123013-49">{</span><span·class="n">Name</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Bin</span><spa[·...·truncated·by·diffoscope;·len:·836,·SHA:·00cabc6d2c65bf041fa48203efd8a0b2b3dfe64f308d8d2305ff9c0d81132c2c·...·]-50">)</span><span·class="p">.</span><span·class="w"> |
| 1045 | </span><span·class="p"·data-group-id=" | 1045 | </span><span·class="p"·data-group-id="6299123013-53">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="p"·data-group-id="6299123013-54">{</span><span·class="s">"dummy.zip"</span><span·class="p">,</span><span·class="w"> |
| 1046 | ·····</span><span·class="p"·data-group-id=" | 1046 | ·····</span><span·class="p"·data-group-id="6299123013-55"><<</span><span·class="mi">80</span><span·class="p">,</span><span·class="mi">75</span><span·class="p">,</span><span·class="mi">3</span><span·class="p">,</span><span·class="mi">4</span><span·class="p">,</span><span·class="mi">20</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">74</span><span·class="p">,</span><span·class="mi">152</span><span·class="p">,</span><span·class="mi">97</span><span·class="p">,</span><span·class="mi">60</span><span·class="p">,</span><span·class="mi">171</span><span·class="p">,</span><span·class="mi">39</span><span·class="p">,</span><span·class="mi">212</span><span·class="p">,</span><span·class="mi">26</span><span·class="p">,</span><span·class="mi">3</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="w"> |
| 1047 | ·······</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">3</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p"·data-group-id=" | 1047 | ·······</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">3</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p"·data-group-id="6299123013-55">>></span><span·class="p"·data-group-id="6299123013-54">}</span><span·class="p"·data-group-id="6299123013-53">}</span><span·class="gp·unselectable"> |
| 1048 | >·</span><span·class="k">catch</span><span·class="w">·</span><span·class="nc">zip</span><span·class="p">:</span><span·class="nf">foldl</span><span·class="p"·data-group-id=" | 1048 | >·</span><span·class="k">catch</span><span·class="w">·</span><span·class="nc">zip</span><span·class="p">:</span><span·class="nf">foldl</span><span·class="p"·data-group-id="6299123013-56">(</span><span·class="nf">fun</span><span·class="p"·data-group-id="6299123013-57">(</span><span·class="s">"foo"</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="p">,</span><span·class="w">·<[·...·truncated·by·diffoscope;·len:·1433,·SHA:·cd391c9b52f1d3bb8923deeb3746f35101be07e2807b42159a6b5d3232b8fe36·...·]-56">)</span><span·class="p">.</span><span·class="w"> |
| 1049 | </span><span·class="p"·data-group-id=" | 1049 | </span><span·class="p"·data-group-id="6299123013-63"><<</span><span·class="s">"FOO"</span><span·class="p"·data-group-id="6299123013-63">>></span></code></pre> |
| 1050 | ··</section> | 1050 | ··</section> |
| 1051 | </section> | 1051 | </section> |
| 1052 | <section·class="detail"·id="list_dir/1"> | 1052 | <section·class="detail"·id="list_dir/1"> |
| 1053 | ··<div·class="detail-header"> | 1053 | ··<div·class="detail-header"> |
| 1054 | ····<a·href="#list_dir/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 1054 | ····<a·href="#list_dir/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 1055 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 1055 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 1619, 15 lines modified | Offset 1619, 15 lines modified | ||
| 1619 | ······<p·class="built-using"> | 1619 | ······<p·class="built-using"> |
| 1620 | ········Built·using | 1620 | ········Built·using |
| 1621 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1621 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1622 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1622 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1623 | ······</p> | 1623 | ······</p> |
| 1624 | <p>Copyright·©·1996-202 | 1624 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1625 | ····</footer> | 1625 | ····</footer> |
| 1626 | ··</div> | 1626 | ··</div> |
| 1627 | </main> | 1627 | </main> |
| 1628 | </div> | 1628 | </div> |
| 1629 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1629 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1630 | ··<script> | 1630 | ··<script> |
| 1631 | ··let·initialized·=·false; | 1631 | ··let·initialized·=·false; |
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| 127 | ··</h1> | 127 | ··</h1> |
| 128 | ····<section·id="moduledoc"> | 128 | ····<section·id="moduledoc"> |
| 129 | <p>Zstandard·compression·interface.</p><p>This·module·provides·an·API·for·the·Zstandard·library | 129 | <p>Zstandard·compression·interface.</p><p>This·module·provides·an·API·for·the·Zstandard·library |
| 130 | (<a·href="http://www.zstd.net">www.zstd.net</a>).·It·is·used·to·compress·and·decompress·data | 130 | (<a·href="http://www.zstd.net">www.zstd.net</a>).·It·is·used·to·compress·and·decompress·data |
| 131 | and·offers·the·same·compression·ratio·as·<a·href="../../../../erts-16.0/doc/html/zlib.html"><code·class="inline">zlib</code></a>·but·at·a·lower·CPU·cost.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">Data</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="s">~"my·data·to·be·compressed"</span><span·class="p">.</span><span·class="gp·unselectable"> | 131 | and·offers·the·same·compression·ratio·as·<a·href="../../../../erts-16.0/doc/html/zlib.html"><code·class="inline">zlib</code></a>·but·at·a·lower·CPU·cost.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">Data</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="s">~"my·data·to·be·compressed"</span><span·class="p">.</span><span·class="gp·unselectable"> |
| 132 | 2>·</span><span·class="n">Compressed</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">zstd</span><span·class="p">:</span><span·class="nf">compress</span><span·class="p"·data-group-id=" | 132 | 2>·</span><span·class="n">Compressed</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">zstd</span><span·class="p">:</span><span·class="nf">compress</span><span·class="p"·data-group-id="5931572684-1">(</span><span·class="n">Data</span><span·class="p"·data-group-id="5931572684-1">)</span><span·class="p">.</span><span·class="gp·unselectable"> |
| 133 | 3>·</span><span·class="nc">zstd</span><span·class="p">:</span><span·class="nf">decompress</span><span·class="p"·data-group-id=" | 133 | 3>·</span><span·class="nc">zstd</span><span·class="p">:</span><span·class="nf">decompress</span><span·class="p"·data-group-id="5931572684-2">(</span><span·class="n">Compressed</span><span·class="p"·data-group-id="5931572684-2">)</span><span·class="p">.</span><span·class="w"> |
| 134 | </span><span·class="p"·data-group-id=" | 134 | </span><span·class="p"·data-group-id="5931572684-3">[</span><span·class="s">~"my·data·to·be·compressed"</span><span·class="p"·data-group-id="5931572684-3">]</span></code></pre><p>If·you·are·compressing·or·decompressing·possibly·large·amounts·of·data, |
| 135 | it·is·also·possible·to·do·streamed·compression/decompression.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">Compress</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="k">fun</span><span·class="w">·</span><span·class="n">F</span><span·class="p"·data-group-id=" | 135 | it·is·also·possible·to·do·streamed·compression/decompression.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">Compress</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="k">fun</span><span·class="w">·</span><span·class="n">F</span><span·class="p"·data-group-id="4459739641-1">(</span><span·class="n">Ctx</span><span·class="p">,</span><span·class="w">·</span><span·class="n">D</span><span·class="p"·data-group-id="4459739641-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 136 | ······················</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">file</span><span·class="p">:</span><span·class="nf">read</span><span·class="p"·data-group-id=" | 136 | ······················</span><span·class="k">case</span><span·class="w">·</span><span·class="nc">file</span><span·class="p">:</span><span·class="nf">read</span><span·class="p"·data-group-id="4459739641-2">(</span><span·class="n">D</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">5</span><span·class="p"·data-group-id="4459739641-2">)</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 137 | ··························</span><span·class="p"·data-group-id=" | 137 | ··························</span><span·class="p"·data-group-id="4459739641-3">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Data</span><span·class="p"·data-group-id="4459739641-3">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 138 | ······························</span><span·class="p"·data-group-id=" | 138 | ······························</span><span·class="p"·data-group-id="4459739641-4">{</span><span·class="ss">continue</span><span·class="p">,</span><span·class="w">·</span><span·class="n">C</span><span·class="p"·data-group-id="4459739641-4">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span[·...·truncated·by·diffoscope;·len:·272,·SHA:·8259a478de89e45152fdd3830b288979cbc3fa91c48e793f01532e07a0495952·...·]-5">)</span><span·class="p">,</span><span·class="w"> |
| 139 | ······························</span><span·class="p"·data-group-id=" | 139 | ······························</span><span·class="p"·data-group-id="4459739641-6">[</span><span·class="n">C</span><span·class="p">|</span><span·class="n">F</span><span·class="p"·data-group-id="4459739641-7">(</span><span·class="n">Ctx</span><span·class="p">,</span><span·class="w">·</span><span·class="n">D</span><span·class[·...·truncated·by·diffoscope;·len:·83,·SHA:·f384e4d5b2f5b2739851d5ac91ed4259519e5a34935f63f5d2bbe57f701f7967·...·]-6">]</span><span·class="p">;</span><span·class="w"> |
| 140 | ··························</span><span·class="ss">eof</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 140 | ··························</span><span·class="ss">eof</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 141 | ······························</span><span·class="p"·data-group-id=" | 141 | ······························</span><span·class="p"·data-group-id="4459739641-8">{</span><span·class="ss">done</span><span·class="p">,</span><span·class="w">·</span><span·class="n">C</span><span·class="p"·data-group-id="4459739641-8">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·cla[·...·truncated·by·diffoscope;·len:·276,·SHA:·29f6c9b10d5d28f8bf566c405626544a456aba3843cb4925950d249e678b242c·...·]-9">)</span><span·class="p">,</span><span·class="w"> |
| 142 | ······························</span><span·class="n">C</span><span·class="w"> | 142 | ······························</span><span·class="n">C</span><span·class="w"> |
| 143 | ······················</span><span·class="k">end</span><span·class="w"> | 143 | ······················</span><span·class="k">end</span><span·class="w"> |
| 144 | ··············</span><span·class="k">end</span><span·class="p">.</span><span·class="gp·unselectable"> | 144 | ··············</span><span·class="k">end</span><span·class="p">.</span><span·class="gp·unselectable"> |
| 145 | 2>·</span><span·class="p"·data-group-id=" | 145 | 2>·</span><span·class="p"·data-group-id="4459739641-10">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Ctx</span><span·class="p"·data-group-id="4459739641-10">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·c[·...·truncated·by·diffoscope;·len:·203,·SHA:·49d0d2528893ba4c67a516f88c7a1b9d09d48d6dde23bc41347baaf3fad3b183·...·]-11">)</span><span·class="p">.</span><span·class="gp·unselectable"> |
| 146 | 3>·</span><span·class="p"·data-group-id=" | 146 | 3>·</span><span·class="p"·data-group-id="4459739641-12">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">D</span><span·class="p"·data-group-id="4459739641-12">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·cla[·...·truncated·by·diffoscope;·len:·407,·SHA:·4c4b5b44f69ea1e2ae234fcaa8eff7dd285781ba5e7daed69a0537ad6fa9f3f4·...·]-13">)</span><span·class="p">.</span><span·class="gp·unselectable"> |
| 147 | 4>·</span><span·class="n">Compressed</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">iolist_to_binary</span><span·class="p"·data-group-id=" | 147 | 4>·</span><span·class="n">Compressed</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">iolist_to_binary</span><span·class="p"·data-group-id="4459739641-15">(</span><span·class="n">Compress</span><span·class="p"·data-group-id="4459739641-16">(</span><span·class="n">Ctx</span><span·class="p">,</span><span·class="w">·</span><span·class="n">D</span><span·class="p"·data-group-id="4459739641-16">)</s[·...·truncated·by·diffoscope;·len:·45,·SHA:·d1dd462cbc1336d6d7cb9fce6f33df63a899b98e6e35bd8f6fd995d5443b0c72·...·]-15">)</span><span·class="p">.</span><span·class="w"> |
| 148 | </span><span·class="p"·data-group-id=" | 148 | </span><span·class="p"·data-group-id="4459739641-17"><<</span><span·class="mi">40</span><span·class="p">,</span><span·class="mi">181</span><span·class="p">,</span><span·class="mi">47</span><span·class="p">,</span><span·class="mi">253</span><span·class="p">,</span><span·class="mi">0</span[·...·truncated·by·diffoscope;·len:·800,·SHA:·4a4b2d0150912881be64298d6c8aea391e4bad75bc7e9a792d10969f703dbc37·...·]-17">>></span><span·class="gp·unselectable"> |
| 149 | 5>·</span><span·class="nc">zstd</span><span·class="p">:</span><span·class="nf">decompress</span><span·class="p"·data-group-id=" | 149 | 5>·</span><span·class="nc">zstd</span><span·class="p">:</span><span·class="nf">decompress</span><span·class="p"·data-group-id="4459739641-18">(</span><span·class="n">Compressed</span><span·class="p"·data-group-id="4459739641-18">)</span><span·class="p">.</span><span·class="w"> |
| 150 | </span><span·class="p"·data-group-id=" | 150 | </span><span·class="p"·data-group-id="4459739641-19">[</span><span·class="s">~"lorem·ipsum"</span><span·class="p"·data-group-id="4459739641-19">]</span></code></pre><p>In·all·functions·errors·can·be·thrown,·where·<code·class="inline">Reason</code>·describes·the·error.</p><p>Typical·<code·class="inline">Reason</code>s:</p><ul><li><strong><code·class="inline">badarg</code></strong>·-·Bad·argument.</li><li><strong><code·class="inline">zstd_error</code></strong>·-·An·error·generated·by·the·Zstandard·library.</li><li><strong><code·class="inline">not_on_controlling_process</code></strong>·-·The·context·was·used·by·a·process·that |
| 151 | did·not·create·it.</li></ul> | 151 | did·not·create·it.</li></ul> |
| 152 | ····</section> | 152 | ····</section> |
| 153 | </div> | 153 | </div> |
| 154 | ··<section·id="summary"·class="details-list"> | 154 | ··<section·id="summary"·class="details-list"> |
| 155 | ····<h1·class="section-heading"> | 155 | ····<h1·class="section-heading"> |
| Offset 725, 16 lines modified | Offset 725, 16 lines modified | ||
| 725 | ······<div·class="specs"> | 725 | ······<div·class="specs"> |
| 726 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·compress(Data·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:iodata/0">iodata</a>(),·Options·::·<a·href="#t:compress_parameters/0">compress_parameters</a>())·->·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:iodata/0">iodata</a>(); | 726 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·compress(Data·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:iodata/0">iodata</a>(),·Options·::·<a·href="#t:compress_parameters/0">compress_parameters</a>())·->·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:iodata/0">iodata</a>(); |
| 727 | ··············(Data·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:iodata/0">iodata</a>(),·Ctx·::·<a·href="#t:context/0">context</a>())·->·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:iodata/0">iodata</a>().</pre> | 727 | ··············(Data·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:iodata/0">iodata</a>(),·Ctx·::·<a·href="#t:context/0">context</a>())·->·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:iodata/0">iodata</a>().</pre> |
| 728 | ······</div> | 728 | ······</div> |
| 729 | <p>Compress·<code·class="inline">Data</code>·using·the·given·<a·href="#t:compress_parameters/0"><code·class="inline">compress_parameters/0</code></a>·or·the·<a·href="#t:context/0"><code·class="inline">context/0</code></a>.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">zstd</span><span·class="p">:</span><span·class="nf">compress</span><span·class="p"·data-group-id=" | 729 | <p>Compress·<code·class="inline">Data</code>·using·the·given·<a·href="#t:compress_parameters/0"><code·class="inline">compress_parameters/0</code></a>·or·the·<a·href="#t:context/0"><code·class="inline">context/0</code></a>.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">zstd</span><span·class="p">:</span><span·class="nf">compress</span><span·class="p"·data-group-id="1798014911-1">(</span><span·class="s">"abc"</span><span·class="p"·data-group-id="1798014911-1">)</span><span·class="p">.</span><span·class="gp·unselectable"> |
| 730 | 2>·</span><span·class="nc">zstd</span><span·class="p">:</span><span·class="nf">compress</span><span·class="p"·data-group-id=" | 730 | 2>·</span><span·class="nc">zstd</span><span·class="p">:</span><span·class="nf">compress</span><span·class="p"·data-group-id="1798014911-2">(</span><span·class="s">"abc"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1798014911-3">#{</span><span·class="w">·</span><span·class="ss">compressionLevel</span><span·class="w">·</span><span·[·...·truncated·by·diffoscope;·len:·190,·SHA:·e04d32138b9b912b36cb87ae4de41343207314789786b69df29330a481c80f82·...·]-2">)</span><span·class="p">.</span></code></pre> |
| 731 | ··</section> | 731 | ··</section> |
| 732 | </section> | 732 | </section> |
| 733 | <section·class="detail"·id="context/1"> | 733 | <section·class="detail"·id="context/1"> |
| 734 | ··<div·class="detail-header"> | 734 | ··<div·class="detail-header"> |
| 735 | ····<a·href="#context/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 735 | ····<a·href="#context/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 736 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 736 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 841, 17 lines modified | Offset 841, 17 lines modified | ||
| 841 | ······<div·class="specs"> | 841 | ······<div·class="specs"> |
| 842 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·decompress(Data·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:iodata/0">iodata</a>(),·Options·::·<a·href="#t:decompress_parameters/0">decompress_parameters</a>())·->·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:iodata/0">iodata</a>(); | 842 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·decompress(Data·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:iodata/0">iodata</a>(),·Options·::·<a·href="#t:decompress_parameters/0">decompress_parameters</a>())·->·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:iodata/0">iodata</a>(); |
| 843 | ················(Data·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:iodata/0">iodata</a>(),·Ctx·::·<a·href="#t:context/0">context</a>())·->·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:iodata/0">iodata</a>().</pre> | 843 | ················(Data·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:iodata/0">iodata</a>(),·Ctx·::·<a·href="#t:context/0">context</a>())·->·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:iodata/0">iodata</a>().</pre> |
| 844 | ······</div> | 844 | ······</div> |
| 845 | <p>Decompress·<code·class="inline">Data</code>·using·the·given·<a·href="#t:compress_parameters/0"><code·class="inline">compress_parameters/0</code></a>·or·the·<a·href="#t:context/0"><code·class="inline">context/0</code></a>.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">Compressed</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">zstd</span><span·class="p">:</span><span·class="nf">compress</span><span·class="p"·data-group-id=" | 845 | <p>Decompress·<code·class="inline">Data</code>·using·the·given·<a·href="#t:compress_parameters/0"><code·class="inline">compress_parameters/0</code></a>·or·the·<a·href="#t:context/0"><code·class="inline">context/0</code></a>.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="n">Compressed</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">zstd</span><span·class="p">:</span><span·class="nf">compress</span><span·class="p"·data-group-id="6588523906-1">(</span><span·class="s">"abc"</span><span·class="p"·data-group-id="6588523906-1">)</span><span·class="p">.</span><span·class="gp·unselectable"> |
| 846 | 2>·</span><span·class="nc">zstd</span><span·class="p">:</span><span·class="nf">decompress</span><span·class="p"·data-group-id=" | 846 | 2>·</span><span·class="nc">zstd</span><span·class="p">:</span><span·class="nf">decompress</span><span·class="p"·data-group-id="6588523906-2">(</span><span·class="n">Compressed</span><span·class="p"·data-group-id="6588523906-2">)</span><span·class="p">.</span><span·class="w"> |
| 847 | </span><span·class="p"·data-group-id=" | 847 | </span><span·class="p"·data-group-id="6588523906-3">[</span><span·class="s">~"abc"</span><span·class="p"·data-group-id="6588523906-3">]</span></code></pre> |
| 848 | ··</section> | 848 | ··</section> |
| 849 | </section> | 849 | </section> |
| 850 | <section·class="detail"·id="dict/2"> | 850 | <section·class="detail"·id="dict/2"> |
| 851 | ··<div·class="detail-header"> | 851 | ··<div·class="detail-header"> |
| 852 | ····<a·href="#dict/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 852 | ····<a·href="#dict/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 853 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 853 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 908, 20 lines modified | Offset 908, 20 lines modified | ||
| 908 | a·dictionary·for·compression.·Dictionaries·allow·good·compression·ratios | 908 | a·dictionary·for·compression.·Dictionaries·allow·good·compression·ratios |
| 909 | even·for·small·amounts·of·data.</p><p>A·decompression·dictionary·can·be·used·as·a·<a·href="#t:decompress_parameters/0"><code·class="inline">decompress_parameters/0</code></a>·to·use | 909 | even·for·small·amounts·of·data.</p><p>A·decompression·dictionary·can·be·used·as·a·<a·href="#t:decompress_parameters/0"><code·class="inline">decompress_parameters/0</code></a>·to·use |
| 910 | a·dictionary·for·decompression.·The·same·dictionary·has·to·be·used·for | 910 | a·dictionary·for·decompression.·The·same·dictionary·has·to·be·used·for |
| 911 | compression·as·decompression.·To·verify·that·the·same·dictionary·is·used | 911 | compression·as·decompression.·To·verify·that·the·same·dictionary·is·used |
| 912 | you·can·use·<a·href="#get_dict_id/1"><code·class="inline">get_dict_id/1</code></a>·on·the·dictionary·and·compressed·data,·or·just | 912 | you·can·use·<a·href="#get_dict_id/1"><code·class="inline">get_dict_id/1</code></a>·on·the·dictionary·and·compressed·data,·or·just |
| 913 | try·to·decompress·as·decompression·will·raise·and·exception·if·an·incorrect | 913 | try·to·decompress·as·decompression·will·raise·and·exception·if·an·incorrect |
| 914 | dictionary·is·given.</p><p>The·<code·class="inline">compressionLevel</code>·set·on·a·dictionary·will·override·the·<code·class="inline">compressionLevel</code> | 914 | dictionary·is·given.</p><p>The·<code·class="inline">compressionLevel</code>·set·on·a·dictionary·will·override·the·<code·class="inline">compressionLevel</code> |
| 915 | set·in·the·<a·href="#t:context/0"><code·class="inline">context/0</code></a>.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="p"·data-group-id=" | 915 | set·in·the·<a·href="#t:context/0"><code·class="inline">context/0</code></a>.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="p"·data-group-id="3150022187-1">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">CDict</span><span·class="p"·data-group-id="3150022187-1">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·c[·...·truncated·by·diffoscope;·len:·274,·SHA:·1a1339528d0f96bc8b34949c783451bee4dc1e89af58df743ed7262d25f104c3·...·]-2">)</span><span·class="p">.</span><span·class="gp·unselectable"> |
| 916 | 2>·</span><span·class="n">Data</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">duplicate</span><span·class="p"·data-group-id=" | 916 | 2>·</span><span·class="n">Data</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">duplicate</span><span·class="p"·data-group-id="3150022187-3">(</span><span·class="mi">100</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">1</span><span·class="p"·data-group-id="3150022187-3">)</span><span·class="p">.</span><span·class="w"> |
| 917 | </span><span·class="p"·data-group-id=" | 917 | </span><span·class="p"·data-group-id="3150022187-4">[</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">1</span><span·class="w">·</span><span·class="p">|</span><span·class="w"[·...·truncated·by·diffoscope;·len:·74,·SHA:·77599397a69a1c4a7aa6b0bee75d873bf67e6bb13b7a0672a5d417fda5c08999·...·]-4">]</span><span·class="gp·unselectable"> |
| 918 | 3>·</span><span·class="nf">iolist_size</span><span·class="p"·data-group-id=" | 918 | 3>·</span><span·class="nf">iolist_size</span><span·class="p"·data-group-id="3150022187-5">(</span><span·class="nc">zstd</span><span·class="p">:</span><span·class="nf">compress</span><span·class="p"·data-group-id="3150022187-6">(</span><span·class="n">Data</span><span·class="p"·data-group-id="3150022187-6">)</span><span·class="p"·d[·...·truncated·by·diffoscope;·len:·24,·SHA:·a317b5c49e31de56969a11fe18ece6dcd35f31413538920745e733d1aec6ad80·...·]-5">)</span><span·class="p">.</span><span·class="w"> |
| 919 | </span><span·class="mi">17</span><span·class="gp·unselectable"> | 919 | </span><span·class="mi">17</span><span·class="gp·unselectable"> |
| 920 | 4>·</span><span·class="nf">iolist_size</span><span·class="p"·data-group-id=" | 920 | 4>·</span><span·class="nf">iolist_size</span><span·class="p"·data-group-id="3150022187-7">(</span><span·class="nc">zstd</span><span·class="p">:</span><span·class="nf">compress</span><span·class="p"·data-group-id="3150022187-8">(</span><span·class="n">Data</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-g[·...·truncated·by·diffoscope;·len:·552,·SHA:·ca3c038e14bfc334c48e451ba37a3615afeaa1dacbe5fb380655c5c56a87d81f·...·]-7">)</span><span·class="p">.</span><span·class="w"> |
| 921 | </span><span·class="mi">16</span></code></pre><p>As·loading·a·dictionary·can·be·a·heavy·operations,·it·is·possible·to·create | 921 | </span><span·class="mi">16</span></code></pre><p>As·loading·a·dictionary·can·be·a·heavy·operations,·it·is·possible·to·create |
| 922 | only·a·single·<a·href="#t:dict/0"><code·class="inline">dict/0</code></a>·and·provide·it·to·multiple·<a·href="#t:context/0"><code·class="inline">context/0</code></a>.</p><p>There·is·no·API·exposed·in·<a·href="zstd.html"><code·class="inline">zstd</code></a>·to·create·a·dictionary,·instead·use·the | 922 | only·a·single·<a·href="#t:dict/0"><code·class="inline">dict/0</code></a>·and·provide·it·to·multiple·<a·href="#t:context/0"><code·class="inline">context/0</code></a>.</p><p>There·is·no·API·exposed·in·<a·href="zstd.html"><code·class="inline">zstd</code></a>·to·create·a·dictionary,·instead·use·the |
| 923 | <code·class="inline">zstd</code>·command·line·tool.</p> | 923 | <code·class="inline">zstd</code>·command·line·tool.</p> |
| 924 | ··</section> | 924 | ··</section> |
| 925 | </section> | 925 | </section> |
| 926 | <section·class="detail"·id="finish/2"> | 926 | <section·class="detail"·id="finish/2"> |
| Offset 945, 19 lines modified | Offset 945, 19 lines modified | ||
| 945 | ······<div·class="specs"> | 945 | ······<div·class="specs"> |
| 946 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·finish(Ctx·::·<a·href="#t:context/0">context</a>(),·Data·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:iodata/0">iodata</a>())·->·Result·when·Result·::·{done,·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:iovec/0">erlang:iovec</a>()}.</pre> | 946 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·finish(Ctx·::·<a·href="#t:context/0">context</a>(),·Data·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:iodata/0">iodata</a>())·->·Result·when·Result·::·{done,·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:iovec/0">erlang:iovec</a>()}.</pre> |
| 947 | ······</div> | 947 | ······</div> |
| 948 | <p>Finish·compressing/decompressing·data.</p><p>This·flushes·all·output·buffers·and·resets·the·<a·href="#t:context/0"><code·class="inline">context/0</code></a>·so | 948 | <p>Finish·compressing/decompressing·data.</p><p>This·flushes·all·output·buffers·and·resets·the·<a·href="#t:context/0"><code·class="inline">context/0</code></a>·so |
| 949 | that·it·can·be·used·for·compressing/decompressing·again.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="p"·data-group-id=" | 949 | that·it·can·be·used·for·compressing/decompressing·again.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="p"·data-group-id="0301202592-1">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">DCtx</span><span·class="p"·data-group-id="0301202592-1">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·cl[·...·truncated·by·diffoscope;·len:·203,·SHA:·d52ef4d566247417ef9e3eb08ea8c807059b203ca345b2336340e1b34d8ed457·...·]-2">)</span><span·class="p">.</span><span·class="gp·unselectable"> |
| 950 | 2>·</span><span·class="p"·data-group-id=" | 950 | 2>·</span><span·class="p"·data-group-id="0301202592-3">{</span><span·class="ss">continue</span><span·class="p">,</span><span·class="w">·</span><span·class="n">D1</span><span·class="p"·data-group-id="0301202592-3">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><spa[·...·truncated·by·diffoscope;·len:·595,·SHA:·394e033769bfa4b9cf49ddd38c6f60c8075b644372b288ce5fb70e36a4ed0327·...·]-4">)</span><span·class="p">.</span><span·class="gp·unselectable"> |
| 951 | 3>·</span><span·class="p"·data-group-id=" | 951 | 3>·</span><span·class="p"·data-group-id="0301202592-6">{</span><span·class="ss">done</span><span·class="p">,</span><span·class="w">·</span><span·class="n">D2</span><span·class="p"·data-group-id="0301202592-6">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·cl[·...·truncated·by·diffoscope;·len:·636,·SHA:·6569e659ab159a824df6bd864e1b6eb195b2fdf81cca5b1e93d66c375b51560b·...·]-7">)</span><span·class="p">.</span><span·class="gp·unselectable"> |
| 952 | 4>·</span><span·class="nf">iolist_to_binary</span><span·class="p"·data-group-id=" | 952 | 4>·</span><span·class="nf">iolist_to_binary</span><span·class="p"·data-group-id="0301202592-9">(</span><span·class="p"·data-group-id="0301202592-10">[</span><span·class="n">D1</span><span·class="p">,</span><span·class="n">D2</span><span·class="p"·data-group-id="0301202592-10">]</span><span·class="p"·data-group-id="0301202592-9">)</span><span·class="p">.</span><span·class="w"> |
| 953 | </span><span·class="p"·data-group-id=" | 953 | </span><span·class="p"·data-group-id="0301202592-11"><<</span><span·class="s">"ab"</span><span·class="p"·data-group-id="0301202592-11">>></span></code></pre> |
| 954 | ··</section> | 954 | ··</section> |
| 955 | </section> | 955 | </section> |
| 956 | <section·class="detail"·id="get_dict_id/1"> | 956 | <section·class="detail"·id="get_dict_id/1"> |
| 957 | ··<div·class="detail-header"> | 957 | ··<div·class="detail-header"> |
| 958 | ····<a·href="#get_dict_id/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 958 | ····<a·href="#get_dict_id/1"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 959 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 959 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
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| 977 | ······<div·class="specs"> | 977 | ······<div·class="specs"> |
| 978 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·get_dict_id(DictOrFrame·::·<a·href="#t:dict/0">dict</a>()·|·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:binary/0">binary</a>())·->·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:non_neg_integer/0">non_neg_integer</a>().</pre> | 978 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·get_dict_id(DictOrFrame·::·<a·href="#t:dict/0">dict</a>()·|·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:binary/0">binary</a>())·->·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:non_neg_integer/0">non_neg_integer</a>().</pre> |
| 979 | ······</div> | 979 | ······</div> |
| 980 | <p>Get·the·dictionary·ID·of·a·dictionary·or·a·frame.</p><p>The·dictionary·ID·0·represents·no·dictionary.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="p"·data-group-id=" | 980 | <p>Get·the·dictionary·ID·of·a·dictionary·or·a·frame.</p><p>The·dictionary·ID·0·represents·no·dictionary.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="p"·data-group-id="0528076796-1">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">CDict</span><span·class="p"·data-group-id="0528076796-1">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·c[·...·truncated·by·diffoscope;·len:·274,·SHA:·84cb44ef399d0cf3f43c12ad76a20170eb2143921938be1672aac42517f83d78·...·]-2">)</span><span·class="p">.</span><span·class="gp·unselectable"> |
| 981 | 2>·</span><span·class="nc">zstd</span><span·class="p">:</span><span·class="nf">get_dict_id</span><span·class="p"·data-group-id=" | 981 | 2>·</span><span·class="nc">zstd</span><span·class="p">:</span><span·class="nf">get_dict_id</span><span·class="p"·data-group-id="0528076796-3">(</span><span·class="n">CDict</span><span·class="p"·data-group-id="0528076796-3">)</span><span·class="p">.</span><span·class="w"> |
| 982 | </span><span·class="mi">1850243626</span><span·class="gp·unselectable"> | 982 | </span><span·class="mi">1850243626</span><span·class="gp·unselectable"> |
| 983 | 3>·</span><span·class="nc">zstd</span><span·class="p">:</span><span·class="nf">get_dict_id</span><span·class="p"·data-group-id=" | 983 | 3>·</span><span·class="nc">zstd</span><span·class="p">:</span><span·class="nf">get_dict_id</span><span·class="p"·data-group-id="0528076796-4">(</span><span·class="nc">zstd</span><span·class="p">:</span><span·class="nf">compress</span><span·class="p"·data-group-id="0528076796-5">(</span><span·class="s">"abc"</span><span·class="p"·data-group-id="0528076796-5">)</span><span·[·...·truncated·by·diffoscope;·len:·35,·SHA:·06677e6f5323ff768ae47c0d2a1795451ca54259a28b4d24cc44eea0f5537a89·...·]-4">)</span><span·class="p">.</span><span·class="w"> |
| 984 | </span><span·class="mi">0</span></code></pre> | 984 | </span><span·class="mi">0</span></code></pre> |
| 985 | ··</section> | 985 | ··</section> |
| 986 | </section> | 986 | </section> |
| 987 | <section·class="detail"·id="get_frame_header/1"> | 987 | <section·class="detail"·id="get_frame_header/1"> |
| 988 | ··<div·class="detail-header"> | 988 | ··<div·class="detail-header"> |
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| 139 | ······<p·class="built-using"> | 139 | ······<p·class="built-using"> |
| 140 | ········Built·using | 140 | ········Built·using |
| 141 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 141 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 142 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 142 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 143 | ······</p> | 143 | ······</p> |
| 144 | <p>Copyright·©·1996-202 | 144 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 145 | ····</footer> | 145 | ····</footer> |
| 146 | ··</div> | 146 | ··</div> |
| 147 | </main> | 147 | </main> |
| 148 | </div> | 148 | </div> |
| 149 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 149 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 150 | ··<script> | 150 | ··<script> |
| 151 | ··let·initialized·=·false; | 151 | ··let·initialized·=·false; |
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| 250 | ········Built·using | 250 | ········Built·using |
| 251 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 251 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 252 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 252 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 253 | ······</p> | 253 | ······</p> |
| 254 | <p>Copyright·©·1996-202 | 254 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 255 | ····</footer> | 255 | ····</footer> |
| 256 | ··</div> | 256 | ··</div> |
| 257 | </main> | 257 | </main> |
| 258 | </div> | 258 | </div> |
| 259 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 259 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 260 | ··<script> | 260 | ··<script> |
| 261 | ··let·initialized·=·false; | 261 | ··let·initialized·=·false; |
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| 178 | ········Built·using | 178 | ········Built·using |
| 179 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 179 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 180 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 180 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 181 | ······</p> | 181 | ······</p> |
| 182 | <p>Copyright·©·1996-202 | 182 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 183 | ····</footer> | 183 | ····</footer> |
| 184 | ··</div> | 184 | ··</div> |
| 185 | </main> | 185 | </main> |
| 186 | </div> | 186 | </div> |
| 187 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 187 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 188 | ··<script> | 188 | ··<script> |
| 189 | ··let·initialized·=·false; | 189 | ··let·initialized·=·false; |
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| 853 | ······<p·class="built-using"> | 853 | ······<p·class="built-using"> |
| 854 | ········Built·using | 854 | ········Built·using |
| 855 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 855 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 856 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 856 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 857 | ······</p> | 857 | ······</p> |
| 858 | <p>Copyright·©·1996-202 | 858 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 859 | ····</footer> | 859 | ····</footer> |
| 860 | ··</div> | 860 | ··</div> |
| 861 | </main> | 861 | </main> |
| 862 | </div> | 862 | </div> |
| 863 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 863 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 864 | ··<script> | 864 | ··<script> |
| 865 | ··let·initialized·=·false; | 865 | ··let·initialized·=·false; |
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| 433 | ······<p·class="built-using"> | 433 | ······<p·class="built-using"> |
| 434 | ········Built·using | 434 | ········Built·using |
| 435 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 435 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 436 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 436 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 437 | ······</p> | 437 | ······</p> |
| 438 | <p>Copyright·©·1996-202 | 438 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 439 | ····</footer> | 439 | ····</footer> |
| 440 | ··</div> | 440 | ··</div> |
| 441 | </main> | 441 | </main> |
| 442 | </div> | 442 | </div> |
| 443 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 443 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 444 | ··<script> | 444 | ··<script> |
| 445 | ··let·initialized·=·false; | 445 | ··let·initialized·=·false; |
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| 969 | ······<p·class="built-using"> | 969 | ······<p·class="built-using"> |
| 970 | ········Built·using | 970 | ········Built·using |
| 971 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 971 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 972 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 972 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 973 | ······</p> | 973 | ······</p> |
| 974 | <p>Copyright·©·1996-202 | 974 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 975 | ····</footer> | 975 | ····</footer> |
| 976 | ··</div> | 976 | ··</div> |
| 977 | </main> | 977 | </main> |
| 978 | </div> | 978 | </div> |
| 979 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 979 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 980 | ··<script> | 980 | ··<script> |
| 981 | ··let·initialized·=·false; | 981 | ··let·initialized·=·false; |
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| 379 | ······<p·class="built-using"> | 379 | ······<p·class="built-using"> |
| 380 | ········Built·using | 380 | ········Built·using |
| 381 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 381 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 382 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 382 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 383 | ······</p> | 383 | ······</p> |
| 384 | <p>Copyright·©·1996-202 | 384 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 385 | ····</footer> | 385 | ····</footer> |
| 386 | ··</div> | 386 | ··</div> |
| 387 | </main> | 387 | </main> |
| 388 | </div> | 388 | </div> |
| 389 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 389 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 390 | ··<script> | 390 | ··<script> |
| 391 | ··let·initialized·=·false; | 391 | ··let·initialized·=·false; |
| Offset 6714, 18 lines modified | Offset 6714, 18 lines modified | ||
| 6714 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·get_postcomments(<a·href="#t:syntaxTree/0">syntaxTree</a>())·->·[<a·href="#t:syntaxTree/0">syntaxTree</a>()].</pre> | 6714 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·get_postcomments(<a·href="#t:syntaxTree/0">syntaxTree</a>())·->·[<a·href="#t:syntaxTree/0">syntaxTree</a>()].</pre> |
| 6715 | ······</div> | 6715 | ······</div> |
| 6716 | <p>Returns·the·associated·post-comments·of·a·node.</p><p>This·is·a·possibly·empty·list·of·abstract·comments,·in·top-down | 6716 | <p>Returns·the·associated·post-comments·of·a·node.</p><p>This·is·a·possibly·empty·list·of·abstract·comments,·in·top-down |
| 6717 | textual·order.·When·the·code·is·formatted,·post-comments·are·typically | 6717 | textual·order.·When·the·code·is·formatted,·post-comments·are·typically |
| 6718 | displayed·to·the·right·of·and/or·below·the·node.·For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 6718 | displayed·to·the·right·of·and/or·below·the·node.·For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="3397229582-1">{</span><span·class="ss">foo</span><span·class="p">,</span><span·class="w">·</span><span·class="n">X</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Y</span><span·class="p"·data-group-id="3397229582-1">}</span><span·class="w">·····</span><span·class="c1">%·Post-comment·of·tuple</span></code></pre><p>If·possible,·the·comment·should·be·moved·past·any·following·separator·characters |
| 6719 | on·the·same·line,·rather·than·placing·the·separators·on·the·following·line. | 6719 | on·the·same·line,·rather·than·placing·the·separators·on·the·following·line. |
| 6720 | For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">foo</span><span·class="p"·data-group-id=" | 6720 | For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">foo</span><span·class="p"·data-group-id="3187960820-1">(</span><span·class="p"·data-group-id="3187960820-2">[</span><span·class="n">X</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="n">Xs</span><span·class="p"·data-group-id="3187960820-2">]</span><span·c[·...·truncated·by·diffoscope;·len:·106,·SHA:·235862f6db6ac69a5d3683311497f753e6725144c18cec7ad7d44c00306ed8d6·...·]-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 6721 | ····</span><span·class="nf">foo</span><span·class="p"·data-group-id=" | 6721 | ····</span><span·class="nf">foo</span><span·class="p"·data-group-id="3187960820-3">(</span><span·class="n">Xs</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">bar</span><span·class="p"·data-group-id="3187960820-4">(</span><span·class="n">X</span><span·class="p"·data-group-id="3187960820-4">)</span><spa[·...·truncated·by·diffoscope;·len:·37,·SHA:·30411c4479529d868b45c786f46d268efdce359c950300d2fdef082ede9aa515·...·]-3">)</span><span·class="p">;</span><span·class="w">·····</span><span·class="c1">%·Post-comment·of·'bar(X)'·node</span><span·class="w"> |
| 6722 | ·</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span></code></pre><p>(where·the·comment·is·moved·past·the·rightmost·"<code·class="inline">)</code>"·and·the·"<code·class="inline">;</code>").</p><p><em>See·also:·</em><a·href="#comment/2"><code·class="inline">comment/2</code></a>,·<a·href="#get_attrs/1"><code·class="inline">get_attrs/1</code></a>,·<a·href="#get_precomments/1"><code·class="inline">get_precomments/1</code></a>, | 6722 | ·</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span></code></pre><p>(where·the·comment·is·moved·past·the·rightmost·"<code·class="inline">)</code>"·and·the·"<code·class="inline">;</code>").</p><p><em>See·also:·</em><a·href="#comment/2"><code·class="inline">comment/2</code></a>,·<a·href="#get_attrs/1"><code·class="inline">get_attrs/1</code></a>,·<a·href="#get_precomments/1"><code·class="inline">get_precomments/1</code></a>, |
| 6723 | <a·href="#set_postcomments/2"><code·class="inline">set_postcomments/2</code></a>.</p> | 6723 | <a·href="#set_postcomments/2"><code·class="inline">set_postcomments/2</code></a>.</p> |
| 6724 | ··</section> | 6724 | ··</section> |
| 6725 | </section> | 6725 | </section> |
| 6726 | <section·class="detail"·id="get_precomments/1"> | 6726 | <section·class="detail"·id="get_precomments/1"> |
| 6727 | ··<div·class="detail-header"> | 6727 | ··<div·class="detail-header"> |
| Offset 6748, 18 lines modified | Offset 6748, 18 lines modified | ||
| 6748 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·get_precomments(<a·href="#t:syntaxTree/0">syntaxTree</a>())·->·[<a·href="#t:syntaxTree/0">syntaxTree</a>()].</pre> | 6748 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·get_precomments(<a·href="#t:syntaxTree/0">syntaxTree</a>())·->·[<a·href="#t:syntaxTree/0">syntaxTree</a>()].</pre> |
| 6749 | ······</div> | 6749 | ······</div> |
| 6750 | <p>Returns·the·associated·pre-comments·of·a·node.</p><p>This·is·a·possibly·empty·list·of·abstract·comments,·in·top-down | 6750 | <p>Returns·the·associated·pre-comments·of·a·node.</p><p>This·is·a·possibly·empty·list·of·abstract·comments,·in·top-down |
| 6751 | textual·order.·When·the·code·is·formatted,·pre-comments·are·typically | 6751 | textual·order.·When·the·code·is·formatted,·pre-comments·are·typically |
| 6752 | displayed·directly·above·the·node.·For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%·Pre-comment·of·function</span><span·class="w"> | 6752 | displayed·directly·above·the·node.·For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%·Pre-comment·of·function</span><span·class="w"> |
| 6753 | </span><span·class="nf">foo</span><span·class="p"·data-group-id="8 | 6753 | </span><span·class="nf">foo</span><span·class="p"·data-group-id="8492469012-1">(</span><span·class="n">X</span><span·class="p"·data-group-id="8492469012-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="p"·data-group-id="8492469012-2">{</span><span·class="ss">bar</span><s[·...·truncated·by·diffoscope;·len:·111,·SHA:·330a092664e230b4947984c5ba518ff92fe24e691a06ab4d81e1863b3bc4f8d4·...·]-2">}</span><span·class="p">.</span></code></pre><p>If·possible,·the·comment·should·be·moved·before·any·preceding·separator |
| 6754 | characters·on·the·same·line.·For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">foo</span><span·class="p"·data-group-id=" | 6754 | characters·on·the·same·line.·For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">foo</span><span·class="p"·data-group-id="0706891944-1">(</span><span·class="p"·data-group-id="0706891944-2">[</span><span·class="n">X</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="n">Xs</span><span·class="p"·data-group-id="0706891944-2">]</span><span·c[·...·truncated·by·diffoscope;·len:·34,·SHA:·d2b0ef03aa9fa3fe31f0acb0008acb23c081aaf07273104c30f02d937072c96a·...·]-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 6755 | ····</span><span·class="c1">%·Pre-comment·of·'bar(X)'·node</span><span·class="w"> | 6755 | ····</span><span·class="c1">%·Pre-comment·of·'bar(X)'·node</span><span·class="w"> |
| 6756 | ····</span><span·class="p"·data-group-id=" | 6756 | ····</span><span·class="p"·data-group-id="0706891944-3">[</span><span·class="nf">bar</span><span·class="p"·data-group-id="0706891944-4">(</span><span·class="n">X</span><span·class="p"·data-group-id="0706891944-4">)</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span[·...·truncated·by·diffoscope;·len:·194,·SHA:·f9c2c88634e5c6e725981f787589c0422e6a54040b7a2b483fede688068a010f·...·]-3">]</span><span·class="p">;</span><span·class="w"> |
| 6757 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span></code></pre><p>(where·the·comment·is·moved·before·the·"<code·class="inline">[</code>").</p><p><em>See·also:·</em><a·href="#comment/2"><code·class="inline">comment/2</code></a>,·<a·href="#get_attrs/1"><code·class="inline">get_attrs/1</code></a>,·<a·href="#get_postcomments/1"><code·class="inline">get_postcomments/1</code></a>, | 6757 | </span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span></code></pre><p>(where·the·comment·is·moved·before·the·"<code·class="inline">[</code>").</p><p><em>See·also:·</em><a·href="#comment/2"><code·class="inline">comment/2</code></a>,·<a·href="#get_attrs/1"><code·class="inline">get_attrs/1</code></a>,·<a·href="#get_postcomments/1"><code·class="inline">get_postcomments/1</code></a>, |
| 6758 | <a·href="#set_precomments/2"><code·class="inline">set_precomments/2</code></a>.</p> | 6758 | <a·href="#set_precomments/2"><code·class="inline">set_precomments/2</code></a>.</p> |
| 6759 | ··</section> | 6759 | ··</section> |
| 6760 | </section> | 6760 | </section> |
| 6761 | <section·class="detail"·id="has_comments/1"> | 6761 | <section·class="detail"·id="has_comments/1"> |
| 6762 | ··<div·class="detail-header"> | 6762 | ··<div·class="detail-header"> |
| Offset 11947, 15 lines modified | Offset 11947, 15 lines modified | ||
| 11947 | ······<p·class="built-using"> | 11947 | ······<p·class="built-using"> |
| 11948 | ········Built·using | 11948 | ········Built·using |
| 11949 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 11949 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 11950 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 11950 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 11951 | ······</p> | 11951 | ······</p> |
| 11952 | <p>Copyright·©·1996-202 | 11952 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 11953 | ····</footer> | 11953 | ····</footer> |
| 11954 | ··</div> | 11954 | ··</div> |
| 11955 | </main> | 11955 | </main> |
| 11956 | </div> | 11956 | </div> |
| 11957 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 11957 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 11958 | ··<script> | 11958 | ··<script> |
| 11959 | ··let·initialized·=·false; | 11959 | ··let·initialized·=·false; |
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| 2386 | ······<p·class="built-using"> | 2386 | ······<p·class="built-using"> |
| 2387 | ········Built·using | 2387 | ········Built·using |
| 2388 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 2388 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 2389 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 2389 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 2390 | ······</p> | 2390 | ······</p> |
| 2391 | <p>Copyright·©·1996-202 | 2391 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 2392 | ····</footer> | 2392 | ····</footer> |
| 2393 | ··</div> | 2393 | ··</div> |
| 2394 | </main> | 2394 | </main> |
| 2395 | </div> | 2395 | </div> |
| 2396 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 2396 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 2397 | ··<script> | 2397 | ··<script> |
| 2398 | ··let·initialized·=·false; | 2398 | ··let·initialized·=·false; |
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| 134 | Merl·itself,·see·the·documentation·of·<a·href="erl_syntax.html"><code·class="inline">erl_syntax</code></a>.</p><h3·id="module-quick-start"·class="section-heading"> | 134 | Merl·itself,·see·the·documentation·of·<a·href="erl_syntax.html"><code·class="inline">erl_syntax</code></a>.</p><h3·id="module-quick-start"·class="section-heading"> |
| 135 | ··<a·href="#module-quick-start"·class="hover-link"> | 135 | ··<a·href="#module-quick-start"·class="hover-link"> |
| 136 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 136 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 137 | ··</a> | 137 | ··</a> |
| 138 | ··<span·class="text">Quick·start</span> | 138 | ··<span·class="text">Quick·start</span> |
| 139 | </h3> | 139 | </h3> |
| 140 | <p>To·enable·the·full·power·of·Merl,·your·module·needs·to·include·the·Merl·header | 140 | <p>To·enable·the·full·power·of·Merl,·your·module·needs·to·include·the·Merl·header |
| 141 | file:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id=" | 141 | file:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">include_lib</span><span·class="p"·data-group-id="2372972073-1">(</span><span·class="s">"syntax_tools/include/merl.hrl"</span><span·class="p"·data-group-id="2372972073-1">)</span><span·class="p">.</span></code></pre><p>Then,·you·can·use·the·<code·class="inline">?Q(Text)</code>·macros·in·your·code·to·create·ASTs·or·match·on |
| 142 | existing·ASTs.·For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Tuple</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">?</span><span·class="n">Q</span><span·class="p"·data-group-id=" | 142 | existing·ASTs.·For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Tuple</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">?</span><span·class="n">Q</span><span·class="p"·data-group-id="0345503997-1">(</span><span·class="s">"{foo,·42}"</span><span·class="p"·data-group-id="0345503997-1">)</span><span·class="p">,</span><span·class="w"> |
| 143 | </span><span·class="o">?</span><span·class="n">Q</span><span·class="p"·data-group-id=" | 143 | </span><span·class="o">?</span><span·class="n">Q</span><span·class="p"·data-group-id="0345503997-2">(</span><span·class="s">"{foo,·_@Number}"</span><span·class="p"·data-group-id="0345503997-2">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">Tuple</span><span·class="p">,</span><span·class="w"> |
| 144 | </span><span·class="n">Call</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">?</span><span·class="n">Q</span><span·class="p"·data-group-id=" | 144 | </span><span·class="n">Call</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">?</span><span·class="n">Q</span><span·class="p"·data-group-id="0345503997-3">(</span><span·class="s">"foo:bar(_@Number)"</span><span·class="p"·data-group-id="0345503997-3">)</span></code></pre><p>Calling·<code·class="inline">merl:print(Call)</code>·will·then·print·the·following·code:</p><pre><code·class="mak[·...·truncated·by·diffoscope;·len:·225,·SHA:·ff49a183e84b8ec9e2b700229421b653672b8d9874babd1d039fdfa0538ce8fc·...·]-1">)</span></code></pre><p>The·<code·class="inline">?Q</code>·macros·turn·the·quoted·code·fragments·into·ASTs,·and·lifts |
| 145 | metavariables·such·as·<code·class="inline">_@Tuple</code>·and·<code·class="inline">_@Number</code>·to·the·level·of·your·Erlang·code, | 145 | metavariables·such·as·<code·class="inline">_@Tuple</code>·and·<code·class="inline">_@Number</code>·to·the·level·of·your·Erlang·code, |
| 146 | so·you·can·use·the·corresponding·Erlang·variables·<code·class="inline">Tuple</code>·and·<code·class="inline">Number</code>·directly. | 146 | so·you·can·use·the·corresponding·Erlang·variables·<code·class="inline">Tuple</code>·and·<code·class="inline">Number</code>·directly. |
| 147 | This·is·the·most·straightforward·way·to·use·Merl,·and·in·many·cases·it's·all·you | 147 | This·is·the·most·straightforward·way·to·use·Merl,·and·in·many·cases·it's·all·you |
| 148 | need.</p><p>You·can·even·write·case·switches·using·<code·class="inline">?Q</code>·macros·as·patterns.·For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="k">case</span><span·class="w">·</span><span·class="n">AST</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> | 148 | need.</p><p>You·can·even·write·case·switches·using·<code·class="inline">?Q</code>·macros·as·patterns.·For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="k">case</span><span·class="w">·</span><span·class="n">AST</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 149 | ····</span><span·class="o">?</span><span·class="n">Q</span><span·class="p"·data-group-id=" | 149 | ····</span><span·class="o">?</span><span·class="n">Q</span><span·class="p"·data-group-id="0876442545-1">(</span><span·class="s">"{foo,·_@Foo}"</span><span·class="p"·data-group-id="0876442545-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="nf">handle</span><span·class="p"·data-group-i[·...·truncated·by·diffoscope;·len:·92,·SHA:·fa7210d57b617ad815e835793a5d673d1a6c9a24b13e2460e64897a48e5ffa2b·...·]-2">)</span><span·class="p">;</span><span·class="w"> |
| 150 | ····</span><span·class="o">?</span><span·class="n">Q</span><span·class="p"·data-group-id=" | 150 | ····</span><span·class="o">?</span><span·class="n">Q</span><span·class="p"·data-group-id="0876442545-3">(</span><span·class="s">"{bar,·_@Bar}"</span><span·class="p"·data-group-id="0876442545-3">)</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><span·class="nc">erl_syntax</span><span·class="p">:</span><[·...·truncated·by·diffoscope;·len:·391,·SHA:·3b80522abc36172f15670a82ae14434046a026f88061c8085b72274e73539994·...·]-5">)</span><span·class="p">;</span><span·class="w"> |
| 151 | ····</span><span·class="p">_</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="nf">handle_default</span><span·class="p"·data-group-id=" | 151 | ····</span><span·class="p">_</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="nf">handle_default</span><span·class="p"·data-group-id="0876442545-6">(</span><span·class="p"·data-group-id="0876442545-6">)</span><span·class="w"> |
| 152 | </span><span·class="k">end</span></code></pre><p>These·case·switches·only·allow·<code·class="inline">?Q(...)</code>·or·<code·class="inline">_</code>·as·clause·patterns,·and·the | 152 | </span><span·class="k">end</span></code></pre><p>These·case·switches·only·allow·<code·class="inline">?Q(...)</code>·or·<code·class="inline">_</code>·as·clause·patterns,·and·the |
| 153 | guards·may·contain·any·expressions,·not·just·Erlang·guard·expressions.</p><p>If·the·macro·<code·class="inline">MERL_NO_TRANSFORM</code>·is·defined·before·the·<code·class="inline">merl.hrl</code>·header·file·is | 153 | guards·may·contain·any·expressions,·not·just·Erlang·guard·expressions.</p><p>If·the·macro·<code·class="inline">MERL_NO_TRANSFORM</code>·is·defined·before·the·<code·class="inline">merl.hrl</code>·header·file·is |
| 154 | included,·the·parse·transform·used·by·Merl·will·be·disabled,·and·in·that·case, | 154 | included,·the·parse·transform·used·by·Merl·will·be·disabled,·and·in·that·case, |
| 155 | the·match·expressions·<code·class="inline">?Q(...)·=·...</code>,·case·switches·using·<code·class="inline">?Q(...)</code>·patterns, | 155 | the·match·expressions·<code·class="inline">?Q(...)·=·...</code>,·case·switches·using·<code·class="inline">?Q(...)</code>·patterns, |
| 156 | and·automatic·metavariables·like·<code·class="inline">_@Tuple</code>·cannot·be·used·in·your·code,·but·the | 156 | and·automatic·metavariables·like·<code·class="inline">_@Tuple</code>·cannot·be·used·in·your·code,·but·the |
| 157 | Merl·macros·and·functions·still·work.·To·do·metavariable·substitution,·you·need | 157 | Merl·macros·and·functions·still·work.·To·do·metavariable·substitution,·you·need |
| 158 | to·use·the·<code·class="inline">?Q(Text,·Map)</code>·macro.·For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Tuple</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">?</span><span·class="n">Q</span><span·class="p"·data-group-id=" | 158 | to·use·the·<code·class="inline">?Q(Text,·Map)</code>·macro.·For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Tuple</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">?</span><span·class="n">Q</span><span·class="p"·data-group-id="0874391598-1">(</span><span·class="s">"{foo,·_@bar,·_@baz}"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0874391598-2">[</span><span·class="p"·data-group-id="0874391598-3">{</span><span·class="ss">bar</span[·...·truncated·by·diffoscope;·len:·452,·SHA:·b81357356fe852888cea89ce05f557d68adf7bd7b78416dd0c031e331e2b53db·...·]8-1">)</span></code></pre><p>The·text·given·to·a·<code·class="inline">?Q(Text)</code>·macro·can·be·either·a·single·string·or·a·list·of |
| 159 | strings.·The·latter·is·useful·when·you·need·to·split·a·long·expression·over | 159 | strings.·The·latter·is·useful·when·you·need·to·split·a·long·expression·over |
| 160 | multiple·lines.·For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="o">?</span><span·class="n">Q</span><span·class="p"·data-group-id=" | 160 | multiple·lines.·For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="o">?</span><span·class="n">Q</span><span·class="p"·data-group-id="9451729168-1">(</span><span·class="p"·data-group-id="9451729168-2">[</span><span·class="s">"case·_@Expr·of"</span><span·class="p">,</span><span·class="w"> |
| 161 | ····</span><span·class="s">"··{foo,·X}·->·f(X);"</span><span·class="p">,</span><span·class="w"> | 161 | ····</span><span·class="s">"··{foo,·X}·->·f(X);"</span><span·class="p">,</span><span·class="w"> |
| 162 | ····</span><span·class="s">"··{bar,·X}·->·g(X)"</span><span·class="p">,</span><span·class="w"> | 162 | ····</span><span·class="s">"··{bar,·X}·->·g(X)"</span><span·class="p">,</span><span·class="w"> |
| 163 | ····</span><span·class="s">"··_·->·h(X)"</span><span·class="w"> | 163 | ····</span><span·class="s">"··_·->·h(X)"</span><span·class="w"> |
| 164 | </span><span·class="s">"end"</span><span·class="p"·data-group-id=" | 164 | </span><span·class="s">"end"</span><span·class="p"·data-group-id="9451729168-2">]</span><span·class="p"·data-group-id="9451729168-1">)</span></code></pre><p>If·there·is·a·syntax·error·somewhere·in·the·text·(like·the·missing·semicolon·in |
| 165 | the·second·clause·above)·this·allows·Merl·to·generate·an·error·message·pointing | 165 | the·second·clause·above)·this·allows·Merl·to·generate·an·error·message·pointing |
| 166 | to·the·exact·line·in·your·source·code.·(Just·remember·to·comma-separate·the | 166 | to·the·exact·line·in·your·source·code.·(Just·remember·to·comma-separate·the |
| 167 | strings·in·the·list,·otherwise·Erlang·will·concatenate·the·string·fragments·as | 167 | strings·in·the·list,·otherwise·Erlang·will·concatenate·the·string·fragments·as |
| 168 | if·they·were·a·single·string.)</p><h3·id="module-metavariable-syntax"·class="section-heading"> | 168 | if·they·were·a·single·string.)</p><h3·id="module-metavariable-syntax"·class="section-heading"> |
| 169 | ··<a·href="#module-metavariable-syntax"·class="hover-link"> | 169 | ··<a·href="#module-metavariable-syntax"·class="hover-link"> |
| 170 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 170 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 171 | ··</a> | 171 | ··</a> |
| Offset 180, 73 lines modified | Offset 180, 73 lines modified | ||
| 180 | note·that·globs·only·matter·for·matching;·when·doing·substitutions,·a·non-glob | 180 | note·that·globs·only·matter·for·matching;·when·doing·substitutions,·a·non-glob |
| 181 | variable·can·be·used·to·inject·a·sequence·of·elements,·and·vice·versa.)</p><p>If·the·name·after·the·prefix·and·any·lift·and·glob·markers·is·<code·class="inline">_</code>·or·<code·class="inline">0</code>,·the | 181 | variable·can·be·used·to·inject·a·sequence·of·elements,·and·vice·versa.)</p><p>If·the·name·after·the·prefix·and·any·lift·and·glob·markers·is·<code·class="inline">_</code>·or·<code·class="inline">0</code>,·the |
| 182 | variable·is·treated·as·an·anonymous·catch-all·pattern·in·matches.·For·example, | 182 | variable·is·treated·as·an·anonymous·catch-all·pattern·in·matches.·For·example, |
| 183 | <code·class="inline">_@_</code>,·<code·class="inline">_@@_</code>,·<code·class="inline">_@__</code>,·or·even·<code·class="inline">_@__@_</code>.</p><p>Finally,·if·the·name·without·any·prefixes·or·lift/glob·markers·begins·with·an | 183 | <code·class="inline">_@_</code>,·<code·class="inline">_@@_</code>,·<code·class="inline">_@__</code>,·or·even·<code·class="inline">_@__@_</code>.</p><p>Finally,·if·the·name·without·any·prefixes·or·lift/glob·markers·begins·with·an |
| 184 | uppercase·character,·as·in·<code·class="inline">_@Foo</code>·or·<code·class="inline">_@_@Foo</code>,·it·will·become·a·variable·on | 184 | uppercase·character,·as·in·<code·class="inline">_@Foo</code>·or·<code·class="inline">_@_@Foo</code>,·it·will·become·a·variable·on |
| 185 | the·Erlang·level,·and·can·be·used·to·easily·deconstruct·and·construct·syntax | 185 | the·Erlang·level,·and·can·be·used·to·easily·deconstruct·and·construct·syntax |
| 186 | trees:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="k">case</span><span·class="w">·</span><span·class="n">Input</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> | 186 | trees:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="k">case</span><span·class="w">·</span><span·class="n">Input</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 187 | ····</span><span·class="o">?</span><span·class="n">Q</span><span·class="p"·data-group-id=" | 187 | ····</span><span·class="o">?</span><span·class="n">Q</span><span·class="p"·data-group-id="2391893679-1">(</span><span·class="s">"{foo,·_@Number}"</span><span·class="p"·data-group-id="2391893679-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="o">?</span><span·class="n">Q</span><span·c[·...·truncated·by·diffoscope;·len:·139,·SHA:·acf47656d7c7c659b17331a7817c3aee3b22b437b0bb3ce6b6efca84c706eb50·...·]-2">)</span><span·class="p">;</span><span·class="w"> |
| 188 | ····</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span></code></pre><p>We·refer·to·these·as·"automatic·metavariables".·If·in·addition·the·name·ends | 188 | ····</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span></code></pre><p>We·refer·to·these·as·"automatic·metavariables".·If·in·addition·the·name·ends |
| 189 | with·<code·class="inline">@</code>,·as·in·<code·class="inline">_@Foo@</code>,·the·value·of·the·variable·as·an·Erlang·term·will·be | 189 | with·<code·class="inline">@</code>,·as·in·<code·class="inline">_@Foo@</code>,·the·value·of·the·variable·as·an·Erlang·term·will·be |
| 190 | automatically·converted·to·the·corresponding·abstract·syntax·tree·when·used·to | 190 | automatically·converted·to·the·corresponding·abstract·syntax·tree·when·used·to |
| 191 | construct·a·larger·tree.·For·example,·in:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Bar</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 191 | construct·a·larger·tree.·For·example,·in:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Bar</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="4612651075-1">{</span><span·class="ss">bar</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">42</span><span·class="p"·data-group-id="4612651075-1">}</span><span·class="p">,</span><span·class="w"> |
| 192 | </span><span·class="n">Foo</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">?</span><span·class="n">Q</span><span·class="p"·data-group-id=" | 192 | </span><span·class="n">Foo</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">?</span><span·class="n">Q</span><span·class="p"·data-group-id="4612651075-2">(</span><span·class="s">"{foo,·_@Bar@}"</span><span·class="p"·data-group-id="4612651075-2">)</span></code></pre><p>(where·Bar·is·just·some·term,·not·a·syntax·tree)·the·result·<code·class="inline">Foo</code>·will·be·a |
| 193 | syntax·tree·representing·<code·class="inline">{foo,·{bar,·42}}</code>.·This·avoids·the·need·for·temporary | 193 | syntax·tree·representing·<code·class="inline">{foo,·{bar,·42}}</code>.·This·avoids·the·need·for·temporary |
| 194 | variables·in·order·to·inject·data,·as·in</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">TmpBar</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">erl_syntax</span><span·class="p">:</span><span·class="nf">abstract</span><span·class="p"·data-group-id=" | 194 | variables·in·order·to·inject·data,·as·in</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">TmpBar</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">erl_syntax</span><span·class="p">:</span><span·class="nf">abstract</span><span·class="p"·data-group-id="1373287306-1">(</span><span·class="n">Bar</span><span·class="p"·data-group-id="1373287306-1">)</span><span·class="p">,</span><span·class="w"> |
| 195 | </span><span·class="n">Foo</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">?</span><span·class="n">Q</span><span·class="p"·data-group-id=" | 195 | </span><span·class="n">Foo</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">?</span><span·class="n">Q</span><span·class="p"·data-group-id="1373287306-2">(</span><span·class="s">"{foo,·_@TmpBar}"</span><span·class="p"·data-group-id="1373287306-2">)</span></code></pre><p>If·the·context·requires·an·integer·rather·than·a·variable,·an·atom,·or·a·string, |
| 196 | you·cannot·use·the·uppercase·convention·to·mark·an·automatic·metavariable. | 196 | you·cannot·use·the·uppercase·convention·to·mark·an·automatic·metavariable. |
| 197 | Instead,·if·the·integer·(without·the·<code·class="inline">909</code>-prefix·and·lift/glob·markers)·ends | 197 | Instead,·if·the·integer·(without·the·<code·class="inline">909</code>-prefix·and·lift/glob·markers)·ends |
| 198 | in·a·<code·class="inline">9</code>,·the·integer·will·become·an·Erlang-level·variable·prefixed·with·<code·class="inline">Q</code>, | 198 | in·a·<code·class="inline">9</code>,·the·integer·will·become·an·Erlang-level·variable·prefixed·with·<code·class="inline">Q</code>, |
| 199 | and·if·it·ends·with·<code·class="inline">99</code>·it·will·also·be·automatically·abstracted.·For·example, | 199 | and·if·it·ends·with·<code·class="inline">99</code>·it·will·also·be·automatically·abstracted.·For·example, |
| 200 | the·following·will·increment·the·arity·of·the·exported·function·f:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="k">case</span><span·class="w">·</span><span·class="n">Form</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> | 200 | the·following·will·increment·the·arity·of·the·exported·function·f:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="k">case</span><span·class="w">·</span><span·class="n">Form</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 201 | ····</span><span·class="o">?</span><span·class="n">Q</span><span·class="p"·data-group-id=" | 201 | ····</span><span·class="o">?</span><span·class="n">Q</span><span·class="p"·data-group-id="1640758928-1">(</span><span·class="s">"-export([f/90919])."</span><span·class="p"·data-group-id="1640758928-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 202 | ········</span><span·class="n">Q2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">erl_syntax</span><span·class="p">:</span><span·class="nf">concrete</span><span·class="p"·data-group-id=" | 202 | ········</span><span·class="n">Q2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">erl_syntax</span><span·class="p">:</span><span·class="nf">concrete</span><span·class="p"·data-group-id="1640758928-2">(</span><span·class="n">Q1</span><span·class="p"·data-group-id="1640758928-2">)</span><span·class="w">·</span><span·class="o">+</span><span·class="w">·</span><span·class="mi">1</span><span·class="p">,</span><span·class="w"> |
| 203 | ········</span><span·class="o">?</span><span·class="n">Q</span><span·class="p"·data-group-id=" | 203 | ········</span><span·class="o">?</span><span·class="n">Q</span><span·class="p"·data-group-id="1640758928-3">(</span><span·class="s">"-export([f/909299])."</span><span·class="p"·data-group-id="1640758928-3">)</span><span·class="p">;</span><span·class="w"> |
| 204 | ····</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span></code></pre><h3·id="module-when-to-use-the-various-forms-of-metavariables"·class="section-heading"> | 204 | ····</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span></code></pre><h3·id="module-when-to-use-the-various-forms-of-metavariables"·class="section-heading"> |
| 205 | ··<a·href="#module-when-to-use-the-various-forms-of-metavariables"·class="hover-link"> | 205 | ··<a·href="#module-when-to-use-the-various-forms-of-metavariables"·class="hover-link"> |
| 206 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 206 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 207 | ··</a> | 207 | ··</a> |
| 208 | ··<span·class="text">When·to·use·the·various·forms·of·metavariables</span> | 208 | ··<span·class="text">When·to·use·the·various·forms·of·metavariables</span> |
| 209 | </h3> | 209 | </h3> |
| 210 | <p>Merl·can·only·parse·a·fragment·of·text·if·it·follows·the·basic·syntactical·rules | 210 | <p>Merl·can·only·parse·a·fragment·of·text·if·it·follows·the·basic·syntactical·rules |
| 211 | of·Erlang.·In·most·places,·a·normal·Erlang·variable·can·be·used·as·metavariable, | 211 | of·Erlang.·In·most·places,·a·normal·Erlang·variable·can·be·used·as·metavariable, |
| 212 | for·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="o">?</span><span·class="n">Q</span><span·class="p"·data-group-id=" | 212 | for·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="o">?</span><span·class="n">Q</span><span·class="p"·data-group-id="8519476400-1">(</span><span·class="s">"f(_@Arg)"</span><span·class="p"·data-group-id="8519476400-1">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">Expr</span></code></pre><p>but·if·you·want·to·match·on·something·like·the·name·of·a·function,·you·have·to |
| 213 | use·an·atom·as·metavariable:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="o">?</span><span·class="n">Q</span><span·class="p"·data-group-id=" | 213 | use·an·atom·as·metavariable:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="o">?</span><span·class="n">Q</span><span·class="p"·data-group-id="0623716548-1">(</span><span·class="s">"'@Name'()·->·_@@_."</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="n">Function</span></code></pre><p>(note·the·anonymous·glob·variable·<code·class="inline">_@@_</code>·to·ignore·the·function·body).</p><p>In·some·contexts,·only·a·string·or·an·integer·is·allowed.·For·example,·the |
| 214 | directive·<code·class="inline">-file(Name,·Line)</code>·requires·that·<code·class="inline">Name</code>·is·a·string·literal·and | 214 | directive·<code·class="inline">-file(Name,·Line)</code>·requires·that·<code·class="inline">Name</code>·is·a·string·literal·and |
| 215 | <code·class="inline">Line</code>·an·integer·literal:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="o">?</span><span·class="n">Q</span><span·class="p"·data-group-id=" | 215 | <code·class="inline">Line</code>·an·integer·literal:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="o">?</span><span·class="n">Q</span><span·class="p"·data-group-id="3894535923-1">(</span><span·class="s">"-file(\"'@File\",·9090)."</span><span·class="p"·data-group-id="3894535923-1">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">?</span><span·class=[·...·truncated·by·diffoscope;·len:·174,·SHA:·735e5faa7342102746d3dc140e11dca8824d09fe81f7a7d6c90553c2b081e51e·...·]-2">)</span><span·class="p">)</span><span·class="p">.</span></code></pre><p>This·will·extract·the·string·literal·<code·class="inline">"foo.erl"</code>·into·the·variable·<code·class="inline">Foo</code>.·Note |
| 216 | the·use·of·the·anonymous·variable·<code·class="inline">9090</code>·to·ignore·the·line·number.·To·match·and | 216 | the·use·of·the·anonymous·variable·<code·class="inline">9090</code>·to·ignore·the·line·number.·To·match·and |
| 217 | also·bind·a·metavariable·that·must·be·an·integer·literal,·we·can·use·the | 217 | also·bind·a·metavariable·that·must·be·an·integer·literal,·we·can·use·the |
| 218 | convention·of·ending·the·integer·with·a·9,·turning·it·into·a·Q-prefixed·variable | 218 | convention·of·ending·the·integer·with·a·9,·turning·it·into·a·Q-prefixed·variable |
| 219 | on·the·Erlang·level·(see·the·previous·section).</p><h4>Globs</h4><p>Whenever·you·want·to·match·out·a·number·of·elements·in·a·sequence·(zero·or·more) | 219 | on·the·Erlang·level·(see·the·previous·section).</p><h4>Globs</h4><p>Whenever·you·want·to·match·out·a·number·of·elements·in·a·sequence·(zero·or·more) |
| 220 | rather·than·a·fixed·set·of·elements,·you·need·to·use·a·glob.·For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="o">?</span><span·class="n">Q</span><span·class="p"·data-group-id=" | 220 | rather·than·a·fixed·set·of·elements,·you·need·to·use·a·glob.·For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="o">?</span><span·class="n">Q</span><span·class="p"·data-group-id="7194831351-1">(</span><span·class="s">"{_@@Elements}"</span><span·class="p"·data-group-id="7194831351-1">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">?</span><span·class="n">Q</span><span·class="[·...·truncated·by·diffoscope;·len:·357,·SHA:·6c51de26ac312d4639a1125b7b731e912b01c7a72c56463c0d690ce9a9a910d8·...·]1-2">)</span></code></pre><p>will·bind·Elements·to·the·list·of·individual·syntax·trees·representing·the·atoms |
| 221 | <code·class="inline">a</code>,·<code·class="inline">b</code>,·and·<code·class="inline">c</code>.·This·can·also·be·used·with·static·prefix·and·suffix·elements | 221 | <code·class="inline">a</code>,·<code·class="inline">b</code>,·and·<code·class="inline">c</code>.·This·can·also·be·used·with·static·prefix·and·suffix·elements |
| 222 | in·the·sequence.·For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="o">?</span><span·class="n">Q</span><span·class="p"·data-group-id="7122130537-1">(</span><span·class="s">"{a,·b,·_@@Elements}"</span><span·class="p"·data-group-id="7122130537-1">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">?</span><span·class="n">Q</span><span·class="p"·data-group-id="7122130537-2">(</span><span·class="p"·data-group-id="7122130537-3">{</span><span·class="ss">a</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">b</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">c</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">d</span><span·class="p"·data-group-id="7122130537-3">}</span><span·class="p"·data-group-id="7122130537-2">)</span></code></pre><p>will·bind·Elements·to·the·list·of·the·<code·class="inline">c</code>·and·<code·class="inline">d</code>·subtrees,·and</p><pre><code·class="makeup·erlang"·translate="no"><span·class="o">?</span><span·class="n">Q</span><span·class="p"·data-group-id="3296064079-1">(</span><span·class="s">"{_@@Elements,·c,·d}"</span><span·class="p"·data-group-id="3296064079-1">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">?</span><span·class="n">Q</span><span·class="p"·data-group-id="3296064079-2">(</span><span·class="p"·data-group-id="3296064079-3">{</span><span·class="ss">a</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">b</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">c</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">d</span><span·class="p"·data-group-id="3296064079-3">}</span><span·class="p"·data-group-id="3296064079-2">)</span></code></pre><p>will·bind·Elements·to·the·list·of·the·<code·class="inline">a</code>·and·<code·class="inline">b</code>·subtrees.·You·can·even·use | ||
| 223 | 222 | in·the·sequence.·For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="o">?</span><span·class="n">Q</span><span·class="p"·data-group-id="7299174799-1">(</span><span·class="s">"{a,·b,·_@@Elements}"</span><span·class="p"·data[·...·truncated·by·diffoscope;·len:·1720,·SHA:·51e61bbc31fff4c9021eec0c18caa387e34bc5c5acf3aad57ae64096723a2f55·...·] | |
| 223 | plain·metavariables·in·the·prefix·or·suffix:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="o">?</span><span·class="n">Q</span><span·class="p"·data-group-id="8020011620-1">(</span><span·class="s">"{_@First,·_@@Rest}"</span><span·class="p"·data-group-id="8020011620-1">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">?</span><span·class="n">Q</span><span·class="p"·data-group-id="8020011620-2">(</span><span·class="p"·data-group-id="8020011620-3">{</span><span·class="ss">a</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">b</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">c</span><span·class="p"·data-group-id="8020011620-3">}</span><span·class="p"·data-group-id="8020011620-2">)</span></code></pre><p>or</p><pre><code·class="makeup·erlang"·translate="no"><span·class="o">?</span><span·class="n">Q</span><span·class="p"·data-group-id="2169079492-1">(</span><span·class="s">"{_@@_,·_@Last}"</span><span·class="p"·data-group-id="2169079492-1">)</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">?</span><span·class="n">Q</span><span·class="p"·data-group-id="2169079492-2">(</span><span·class="p"·data-group-id="2169079492-3">{</span><span·class="ss">a</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">b</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">c</span><span·class="p"·data-group-id="2169079492-3">}</span><span·class="p"·data-group-id="2169079492-2">)</span></code></pre><p>(ignoring·all·but·the·last·element).·However,·you·cannot·have·two·globs·as·part | ||
| 224 | of·the·same·sequence.</p><h4>Lifted·metavariables</h4><p>In·some·cases,·the·Erlang·syntax·rules·make·it·impossible·to·place·a | 224 | of·the·same·sequence.</p><h4>Lifted·metavariables</h4><p>In·some·cases,·the·Erlang·syntax·rules·make·it·impossible·to·place·a |
| 225 | metavariable·directly·where·you·would·like·it.·For·example,·you·cannot·write:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="o">?</span><span·class="n">Q</span><span·class="p"·data-group-id=" | 225 | metavariable·directly·where·you·would·like·it.·For·example,·you·cannot·write:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="o">?</span><span·class="n">Q</span><span·class="p"·data-group-id="5772150675-1">(</span><span·class="s">"-export([_@@Name])."</span><span·class="p"·data-group-id="5772150675-1">)</span></code></pre><p>to·match·out·all·name/arity·pairs·in·the·export·list,·or·to·insert·a·list·of |
| 226 | exports·in·a·declaration,·because·the·Erlang·parser·only·allows·elements·on·the | 226 | exports·in·a·declaration,·because·the·Erlang·parser·only·allows·elements·on·the |
| 227 | form·<code·class="inline">A/I</code>·(where·<code·class="inline">A</code>·is·an·atom·and·<code·class="inline">I</code>·an·integer)·in·the·export·list.·A | 227 | form·<code·class="inline">A/I</code>·(where·<code·class="inline">A</code>·is·an·atom·and·<code·class="inline">I</code>·an·integer)·in·the·export·list.·A |
| 228 | variable·like·the·above·is·not·allowed,·but·neither·is·a·single·atom·or·integer, | 228 | variable·like·the·above·is·not·allowed,·but·neither·is·a·single·atom·or·integer, |
| 229 | so·<code·class="inline">'@@Name'</code>·or·<code·class="inline">909919</code>·would·not·work·either.</p><p>What·you·have·to·do·in·such·cases·is·to·write·your·metavariable·in·a | 229 | so·<code·class="inline">'@@Name'</code>·or·<code·class="inline">909919</code>·would·not·work·either.</p><p>What·you·have·to·do·in·such·cases·is·to·write·your·metavariable·in·a |
| 230 | syntactically·valid·position,·and·use·lifting·markers·to·denote·where·it·should | 230 | syntactically·valid·position,·and·use·lifting·markers·to·denote·where·it·should |
| 231 | really·apply,·as·in:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="o">?</span><span·class="n">Q</span><span·class="p"·data-group-id=" | 231 | really·apply,·as·in:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="o">?</span><span·class="n">Q</span><span·class="p"·data-group-id="8300852217-1">(</span><span·class="s">"-export(['@_@Name'/0])."</span><span·class="p"·data-group-id="8300852217-1">)</span></code></pre><p>This·causes·the·variable·to·be·lifted·(after·parsing)·to·the·next·higher·level |
| 232 | in·the·syntax·tree,·replacing·that·entire·subtree.·In·this·case,·the | 232 | in·the·syntax·tree,·replacing·that·entire·subtree.·In·this·case,·the |
| 233 | <code·class="inline">'@_@Name'/0</code>·will·be·replaced·with·<code·class="inline">'@@Name'</code>,·and·the·<code·class="inline">/0</code>·part·was·just·used | 233 | <code·class="inline">'@_@Name'/0</code>·will·be·replaced·with·<code·class="inline">'@@Name'</code>,·and·the·<code·class="inline">/0</code>·part·was·just·used |
| 234 | as·dummy·notation·and·will·be·discarded.</p><p>You·may·even·need·to·apply·lifting·more·than·once.·To·match·the·entire·export | 234 | as·dummy·notation·and·will·be·discarded.</p><p>You·may·even·need·to·apply·lifting·more·than·once.·To·match·the·entire·export |
| 235 | list·as·a·single·syntax·tree,·you·can·write:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="o">?</span><span·class="n">Q</span><span·class="p"·data-group-id=" | 235 | list·as·a·single·syntax·tree,·you·can·write:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="o">?</span><span·class="n">Q</span><span·class="p"·data-group-id="4600189219-1">(</span><span·class="s">"-export(['@__Name'/0])."</span><span·class="p"·data-group-id="4600189219-1">)</span></code></pre><p>using·two·underscores,·but·with·no·glob·marker·this·time.·This·will·make·the |
| 236 | entire·<code·class="inline">['@__Name'/0]</code>·part·be·replaced·with·<code·class="inline">'@Name'</code>.</p><p>Sometimes,·the·tree·structure·of·a·code·fragment·is·not·very·obvious,·and·parts | 236 | entire·<code·class="inline">['@__Name'/0]</code>·part·be·replaced·with·<code·class="inline">'@Name'</code>.</p><p>Sometimes,·the·tree·structure·of·a·code·fragment·is·not·very·obvious,·and·parts |
| 237 | of·the·structure·may·be·invisible·when·printed·as·source·code.·For·instance,·a | 237 | of·the·structure·may·be·invisible·when·printed·as·source·code.·For·instance,·a |
| 238 | simple·function·definition·like·the·following:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">zero</span><span·class="p"·data-group-id="9 | 238 | simple·function·definition·like·the·following:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">zero</span><span·class="p"·data-group-id="9773477042-1">(</span><span·class="p"·data-group-id="9773477042-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="mi">0</span><span·class="p">.</span></code></pre><p>consists·of·the·name·(the·atom·<code·class="inline">zero</code>),·and·a·list·of·clauses·containing·the |
| 239 | single·clause·<code·class="inline">()·->·0</code>.·The·clause·consists·of·an·argument·list·(empty),·a | 239 | single·clause·<code·class="inline">()·->·0</code>.·The·clause·consists·of·an·argument·list·(empty),·a |
| 240 | guard·(empty),·and·a·body·(which·is·always·a·list·of·expressions)·containing·the | 240 | guard·(empty),·and·a·body·(which·is·always·a·list·of·expressions)·containing·the |
| 241 | single·expression·<code·class="inline">0</code>.·This·means·that·to·match·out·the·name·and·the·list·of | 241 | single·expression·<code·class="inline">0</code>.·This·means·that·to·match·out·the·name·and·the·list·of |
| 242 | clauses·of·any·function,·you'll·need·to·use·a·pattern·like | 242 | clauses·of·any·function,·you'll·need·to·use·a·pattern·like |
| 243 | <code·class="inline">?Q("'@Name'()·->·_@_@Body.")</code>,·using·a·dummy·clause·whose·body·is·a·glob·lifted | 243 | <code·class="inline">?Q("'@Name'()·->·_@_@Body.")</code>,·using·a·dummy·clause·whose·body·is·a·glob·lifted |
| 244 | one·level.</p><p>To·visualize·the·structure·of·a·syntax·tree,·you·can·use·the·function | 244 | one·level.</p><p>To·visualize·the·structure·of·a·syntax·tree,·you·can·use·the·function |
| 245 | <code·class="inline">merl:show(T)</code>,·which·prints·a·summary.·For·example,·entering</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">merl</span><span·class="p">:</span><span·class="nf">show</span><span·class="p"·data-group-id="3 | 245 | <code·class="inline">merl:show(T)</code>,·which·prints·a·summary.·For·example,·entering</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">merl</span><span·class="p">:</span><span·class="nf">show</span><span·class="p"·data-group-id="3663637091-1">(</span><span·class="nc">merl</span><span·class="p">:</span><span·class="nf">quote</span><span·class="p"·data-group-id="3663637091-2">(</span><span·class="s">"inc(X,·Y)·when·Y·>·0·->·X·+·Y."</span><span·class="p"·data-group-id=[·...·truncated·by·diffoscope;·len:·64,·SHA:·564da57ff58eeaaabb348e129e3c82a4a92b5a210bc0759f70ca8dd53c929d7e·...·]-1">)</span></code></pre><p>in·the·Erlang·shell·will·print·the·following·(where·the·<code·class="inline">+</code>·signs·separate |
| 246 | groups·of·subtrees·on·the·same·level):</p><pre><code·class="text">function:·inc(X,·Y)·when·...·->·X·+·Y. | 246 | groups·of·subtrees·on·the·same·level):</p><pre><code·class="text">function:·inc(X,·Y)·when·...·->·X·+·Y. |
| 247 | ··atom:·inc | 247 | ··atom:·inc |
| 248 | ··+ | 248 | ··+ |
| 249 | ··clause:·(X,·Y)·when·...·->·X·+·Y | 249 | ··clause:·(X,·Y)·when·...·->·X·+·Y |
| 250 | ····variable:·X | 250 | ····variable:·X |
| 251 | ····variable:·Y | 251 | ····variable:·Y |
| 252 | ····+ | 252 | ····+ |
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| 1698 | ······<p·class="built-using"> | 1698 | ······<p·class="built-using"> |
| 1699 | ········Built·using | 1699 | ········Built·using |
| 1700 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1700 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1701 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1701 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1702 | ······</p> | 1702 | ······</p> |
| 1703 | <p>Copyright·©·1996-202 | 1703 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1704 | ····</footer> | 1704 | ····</footer> |
| 1705 | ··</div> | 1705 | ··</div> |
| 1706 | </main> | 1706 | </main> |
| 1707 | </div> | 1707 | </div> |
| 1708 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1708 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 152 | ······<p·class="built-using"> | 152 | ······<p·class="built-using"> |
| 153 | ········Built·using | 153 | ········Built·using |
| 154 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 154 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 155 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 155 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 156 | ······</p> | 156 | ······</p> |
| 157 | <p>Copyright·©·1996-202 | 157 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 158 | ····</footer> | 158 | ····</footer> |
| 159 | ··</div> | 159 | ··</div> |
| 160 | </main> | 160 | </main> |
| 161 | </div> | 161 | </div> |
| 162 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 162 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 163 | ··<script> | 163 | ··<script> |
| 164 | ··let·initialized·=·false; | 164 | ··let·initialized·=·false; |
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| 139 | </h3> | 139 | </h3> |
| 140 | <ul><li><p>A·few·minor·issues·were·corrected·in·<code·class="inline">m:syntax_tools</code>,·as·well·in·the·<a·href="../../../../lib/stdlib-7.0/doc/html/erl_anno.html"><code·class="inline">erl_anno</code></a>·module.</p><p>Own·Id:·OTP-19422·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9253"·title="">PR-9253</a></p></li></ul><h3·id="improvements-and-new-features"·class="section-heading"> | 140 | <ul><li><p>A·few·minor·issues·were·corrected·in·<code·class="inline">m:syntax_tools</code>,·as·well·in·the·<a·href="../../../../lib/stdlib-7.0/doc/html/erl_anno.html"><code·class="inline">erl_anno</code></a>·module.</p><p>Own·Id:·OTP-19422·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9253"·title="">PR-9253</a></p></li></ul><h3·id="improvements-and-new-features"·class="section-heading"> |
| 141 | ··<a·href="#improvements-and-new-features"·class="hover-link"> | 141 | ··<a·href="#improvements-and-new-features"·class="hover-link"> |
| 142 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 142 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 143 | ··</a> | 143 | ··</a> |
| 144 | ··<span·class="text">Improvements·and·New·Features</span> | 144 | ··<span·class="text">Improvements·and·New·Features</span> |
| 145 | </h3> | 145 | </h3> |
| 146 | <ul><li><p>Comprehensions·have·been·extended·with·zip·generators··according·to·<a·href="https://www.erlang.org/eeps/eep-0073">EEP·73</a>.·</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="p"·data-group-id="1916016166-1">[</span><span·class="n">A</span><span·class="o">+</span><span·class="n">B</span><span·class="w">·</span><span·class="p">||</span><span·class="w">·</span><span·class="n">A</span><span·class="w">·</span><span·class="o"><-</span><span·class="w">·</span><span·class="p"·data-group-id="1916016166-2">[</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">2</span><span·class="p">,</span><span·class="mi">3</span><span·class="p"·data-group-id="1916016166-2">]</span><span·class="w">·</span><span·class="p">&&</span><span·class="w">·</span><span·class="n">B</span><span·class="w">·</span><span·class="o"><-</span><span·class="w">·</span><span·class="p"·data-group-id="1916016166-3">[</span><span·class="mi">4</span><span·class="p">,</span><span·class="mi">5</span><span·class="p">,</span><span·class="mi">6</span><span·class="p"·data-group-id="1916016166-3">]</span><span·class="p"·data-group-id="1916016166-1">]</span><span·class="p">.</span><span·class="w"> | ||
| 147 | < | 146 | <ul><li><p>Comprehensions·have·been·extended·with·zip·generators··according·to·<a·href="https://www.erlang.org/eeps/eep-0073">EEP·73</a>.·</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·cla[·...·truncated·by·diffoscope;·len:·1021,·SHA:·8f37a4406328b27509dc85a45c8db22162ffc4a239107dd8adb29bcec85fcb62·...·] |
| 147 | </span><span·class="p"·data-group-id="8148929776-4">[</span><span·class="mi">5</span><span·class="p">,</span><span·class="mi">7</span><span·class="p">,</span><span·class="mi">9</span><span·class="p"·data-group-id="8148929776-4">]</span></code></pre><p>Own·Id:·OTP-19184·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8926"·title="">PR-8926</a></p></li><li><p>New·strict·generators·have·been·added·for·comprehensions.</p><p>The·currently·existing·generators·are·"relaxed":·they·ignore·terms·in·the | ||
| 148 | right-hand·side·expression·that·do·not·match·the·left-hand·side·pattern.</p><p>The·new·strict·generators·fail·with·exception·<code·class="inline">badmatch</code>·if·a·pattern·doesn't·match.</p><p>Examples:</p><p>Using·the·current·relaxed·generator·operator·<code·class="inline"><-</code>,·any·element·not·matching | 148 | right-hand·side·expression·that·do·not·match·the·left-hand·side·pattern.</p><p>The·new·strict·generators·fail·with·exception·<code·class="inline">badmatch</code>·if·a·pattern·doesn't·match.</p><p>Examples:</p><p>Using·the·current·relaxed·generator·operator·<code·class="inline"><-</code>,·any·element·not·matching |
| 149 | the·pattern·<code·class="inline">{_,_}</code>·will·be·silently·discarded:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="p"·data-group-id="9341594705-1">[</span><span·class="n">T</span><span·class="w">·</span><span·class="p">||</span><span·class="w">·</span><span·class="p"·data-group-id="9341594705-2">{</span><span·class="p">_</span><span·class="p">,</span><span·class="p">_</span><span·class="p"·data-group-id="9341594705-2">}</span><span·class="o">=</span><span·class="n">T</span><span·class="w">·</span><span·class="o"><-</span><span·class="w">·</span><span·class="p"·data-group-id="9341594705-3">[</span><span·class="p"·data-group-id="9341594705-4">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="mi">1</span><span·class="p"·data-group-id="9341594705-4">}</span><span·class="p">,</span><span·class="ss">ok</span><span·class="p">,</span><span·class="p"·data-group-id="9341594705-5">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="mi">2</span><span·class="p"·data-group-id="9341594705-5">}</span><span·class="p"·data-group-id="9341594705-3">]</span><span·class="p"·data-group-id="9341594705-1">]</span><span·class="p">.</span><span·class="w"> | ||
| 150 | 149 | the·pattern·<code·class="inline">{_,_}</code>·will·be·silently·discarded:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="p"·data-group-id="9968469068-1">[</span><span·class="n">T</span><span·class[·...·truncated·by·diffoscope;·len:·1002,·SHA:·5bca7776850c7e211b4b89781e9a090f7878d1b42a1916ee9a22273dbde9eee8·...·] | |
| 150 | </span><span·class="p"·data-group-id="9968469068-6">[</span><span·class="p"·data-group-id="9968469068-7">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="mi">1</span><span·class="p"·data-group-id="9968469068-7">}</span><span·class="p">,</span><span·class="p"·data-group-id="9968469068-8">{</span><span·class="ss">error</span><span·class="p">,</span><span·class="mi">2</span><span·class="p"·data-group-id="9968469068-8">}</span><span·class="p"·data-group-id="9968469068-6">]</span></code></pre><p>If·the·intention·is·that·all·lists·processed·by·a·list·comprehension·must·only | ||
| 151 | contain·tuples·of·size·two,·using·the·new·strict·version·of·the·operator·ensures | 151 | contain·tuples·of·size·two,·using·the·new·strict·version·of·the·operator·ensures |
| 152 | that·term·not·matching·will·cause·a·crash:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">2>·</span><span·class="p"·data-group-id=" | 152 | that·term·not·matching·will·cause·a·crash:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">2>·</span><span·class="p"·data-group-id="9365497943-1">[</span><span·class="n">T</span><span·class="w">·</span><span·class="p">||</span><span·class="w">·</span><span·class="p"·data-group-id="9365497943-2">{</span><span·class="p">_</span><span·class="p">,</span><span·class="p">_</span><span·class=[·...·truncated·by·diffoscope;·len:·752,·SHA:·b89e4c7fb845169d40cfd521586e8026d2803db3ce48d4206b72cf381a7faff5·...·]-1">]</span><span·class="p">.</span><span·class="w"> |
| 153 | </span><span·class="gt">**·exception·error:·no·match·of·right·hand·side·value·ok</span></code></pre><p>Using·the·strict·generator·operator·to·mark·the·intention·that·all·list·elements·must·match·the·pattern·could·help·finding·mistakes·quicker·if·something·unpexected·is·added·to·the·list·processed·by·the·generator.</p><p>The·strict·version·for·bitstring·generators·is·<code·class="inline"><:=</code>.</p><p>Own·Id:·OTP-19317·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8625"·title="">PR-8625</a></p></li><li><p>Fixed·licenses·in·files·and·added·ORT·curations·to·the·following·apps:·otp,·eldap,·erl_interface,·eunit,·parsetools,·stdlib,·syntax_tools,·and·ERTS.</p><p>Own·Id:·OTP-19478·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9376"·title="">PR-9376</a>,·<a·href="https://github.com/erlang/otp/pull/9402"·title="">PR-9402</a>,·<a·href="https://github.com/erlang/otp/pull/9819"·title="">PR-9819</a></p></li><li><p>The·license·and·copyright·header·has·changed·format·to·include·an·<code·class="inline">SPDX-License-Identifier</code>.·At·the·same·time,·most·files·have·been·updated·to·follow·a·uniform·standard·for·license·headers.</p><p>Own·Id:·OTP-19575·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9670"·title="">PR-9670</a></p></li></ul><h2·id="syntax_tools-3-2-2"·class="section-heading"> | 153 | </span><span·class="gt">**·exception·error:·no·match·of·right·hand·side·value·ok</span></code></pre><p>Using·the·strict·generator·operator·to·mark·the·intention·that·all·list·elements·must·match·the·pattern·could·help·finding·mistakes·quicker·if·something·unpexected·is·added·to·the·list·processed·by·the·generator.</p><p>The·strict·version·for·bitstring·generators·is·<code·class="inline"><:=</code>.</p><p>Own·Id:·OTP-19317·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8625"·title="">PR-8625</a></p></li><li><p>Fixed·licenses·in·files·and·added·ORT·curations·to·the·following·apps:·otp,·eldap,·erl_interface,·eunit,·parsetools,·stdlib,·syntax_tools,·and·ERTS.</p><p>Own·Id:·OTP-19478·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9376"·title="">PR-9376</a>,·<a·href="https://github.com/erlang/otp/pull/9402"·title="">PR-9402</a>,·<a·href="https://github.com/erlang/otp/pull/9819"·title="">PR-9819</a></p></li><li><p>The·license·and·copyright·header·has·changed·format·to·include·an·<code·class="inline">SPDX-License-Identifier</code>.·At·the·same·time,·most·files·have·been·updated·to·follow·a·uniform·standard·for·license·headers.</p><p>Own·Id:·OTP-19575·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/9670"·title="">PR-9670</a></p></li></ul><h2·id="syntax_tools-3-2-2"·class="section-heading"> |
| 154 | ··<a·href="#syntax_tools-3-2-2"·class="hover-link"> | 154 | ··<a·href="#syntax_tools-3-2-2"·class="hover-link"> |
| 155 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 155 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 156 | ··</a> | 156 | ··</a> |
| 157 | ··<span·class="text">Syntax_Tools·3.2.2</span> | 157 | ··<span·class="text">Syntax_Tools·3.2.2</span> |
| 158 | </h2> | 158 | </h2> |
| 159 | <h3·id="fixed-bugs-and-malfunctions-1"·class="section-heading"> | 159 | <h3·id="fixed-bugs-and-malfunctions-1"·class="section-heading"> |
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| 946 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 946 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 947 | ······</p> | 947 | ······</p> |
| 948 | <p>Copyright·©·1996-202 | 948 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 949 | ····</footer> | 949 | ····</footer> |
| 950 | ··</div> | 950 | ··</div> |
| 951 | </main> | 951 | </main> |
| 952 | </div> | 952 | </div> |
| 953 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 953 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 954 | ··<script> | 954 | ··<script> |
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| 1125 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1125 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1126 | ······</p> | 1126 | ······</p> |
| 1127 | <p>Copyright·©·1996-202 | 1127 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1128 | ····</footer> | 1128 | ····</footer> |
| 1129 | ··</div> | 1129 | ··</div> |
| 1130 | </main> | 1130 | </main> |
| 1131 | </div> | 1131 | </div> |
| 1132 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1132 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1133 | ··<script> | 1133 | ··<script> |
| 1134 | ··let·initialized·=·false; | 1134 | ··let·initialized·=·false; |
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| 138 | ········Built·using | 138 | ········Built·using |
| 139 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 139 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 140 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 140 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 141 | ······</p> | 141 | ······</p> |
| 142 | <p>Copyright·©·1996-202 | 142 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 143 | ····</footer> | 143 | ····</footer> |
| 144 | ··</div> | 144 | ··</div> |
| 145 | </main> | 145 | </main> |
| 146 | </div> | 146 | </div> |
| 147 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 147 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 148 | ··<script> | 148 | ··<script> |
| 149 | ··let·initialized·=·false; | 149 | ··let·initialized·=·false; |
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| 14 | dist/lato-latin-300-normal-YUMVEFOL.woff2 | 14 | dist/lato-latin-300-normal-YUMVEFOL.woff2 |
| 15 | dist/lato-latin-400-normal-W7754I4D.woff2 | 15 | dist/lato-latin-400-normal-W7754I4D.woff2 |
| 16 | dist/lato-latin-700-normal-2XVSBPG4.woff2 | 16 | dist/lato-latin-700-normal-2XVSBPG4.woff2 |
| 17 | dist/lato-latin-ext-300-normal-VPGGJKJL.woff2 | 17 | dist/lato-latin-ext-300-normal-VPGGJKJL.woff2 |
| 18 | dist/lato-latin-ext-400-normal-N27NCBWW.woff2 | 18 | dist/lato-latin-ext-400-normal-N27NCBWW.woff2 |
| 19 | dist/lato-latin-ext-700-normal-Q2L5DVMW.woff2 | 19 | dist/lato-latin-ext-700-normal-Q2L5DVMW.woff2 |
| 20 | dist/remixicon-NKANDIL5.woff2 | 20 | dist/remixicon-NKANDIL5.woff2 |
| 21 | dist/search_data- | 21 | dist/search_data-236D9DDF.js |
| 22 | dist/sidebar_items-EEB857AE.js | 22 | dist/sidebar_items-EEB857AE.js |
| 23 | getting_started.html | 23 | getting_started.html |
| 24 | index.html | 24 | index.html |
| 25 | introduction.html | 25 | introduction.html |
| 26 | notes.html | 26 | notes.html |
| 27 | search.html | 27 | search.html |
| 28 | tftp.html | 28 | tftp.html |
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| 143 | ······<p·class="built-using"> | 143 | ······<p·class="built-using"> |
| 144 | ········Built·using | 144 | ········Built·using |
| 145 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 145 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 146 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 146 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 147 | ······</p> | 147 | ······</p> |
| 148 | <p>Copyright·©·1996-202 | 148 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 149 | ····</footer> | 149 | ····</footer> |
| 150 | ··</div> | 150 | ··</div> |
| 151 | </main> | 151 | </main> |
| 152 | </div> | 152 | </div> |
| 153 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 153 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 154 | ··<script> | 154 | ··<script> |
| 155 | ··let·initialized·=·false; | 155 | ··let·initialized·=·false; |
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| 190 | ······<p·class="built-using"> | 190 | ······<p·class="built-using"> |
| 191 | ········Built·using | 191 | ········Built·using |
| 192 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 192 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 193 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 193 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 194 | ······</p> | 194 | ······</p> |
| 195 | <p>Copyright·©·1996-202 | 195 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 196 | ····</footer> | 196 | ····</footer> |
| 197 | ··</div> | 197 | ··</div> |
| 198 | </main> | 198 | </main> |
| 199 | </div> | 199 | </div> |
| 200 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 200 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 201 | ··<script> | 201 | ··<script> |
| 202 | ··let·initialized·=·false; | 202 | ··let·initialized·=·false; |
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| 124 | ····<span>Examples</span> | 124 | ····<span>Examples</span> |
| 125 | ··</h1> | 125 | ··</h1> |
| 126 | <p>The·<a·href="tftp.html#start/1">start/1</a>·function·starts·a·daemon·process·listening·for·UDP | 126 | <p>The·<a·href="tftp.html#start/1">start/1</a>·function·starts·a·daemon·process·listening·for·UDP |
| 127 | packets·on·a·port.·When·it·receives·a·request·for·read·or·write,·it·spawns·a | 127 | packets·on·a·port.·When·it·receives·a·request·for·read·or·write,·it·spawns·a |
| 128 | temporary·server·process·handling·the·transfer.</p><p>This·is·a·simple·example·of·starting·the·TFTP·server·and·reading·the·content·of | 128 | temporary·server·process·handling·the·transfer.</p><p>This·is·a·simple·example·of·starting·the·TFTP·server·and·reading·the·content·of |
| 129 | a·sample·file·using·the·TFTP·client.</p><p><em>Step·1.</em>·Create·a·sample·file·to·be·used·for·the·transfer:</p><pre><code·class="text">······$·echo·"Erlang/OTP·21"·>·file.txt</code></pre><p><em>Step·2.</em>·Start·the·TFTP·server:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">······</span><span·class="mi">1</span><span·class="o">></span><span·class="w">·</span><span·class="p"·data-group-id=" | 129 | a·sample·file·using·the·TFTP·client.</p><p><em>Step·1.</em>·Create·a·sample·file·to·be·used·for·the·transfer:</p><pre><code·class="text">······$·echo·"Erlang/OTP·21"·>·file.txt</code></pre><p><em>Step·2.</em>·Start·the·TFTP·server:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">······</span><span·class="mi">1</span><span·class="o">></span><span·class="w">·</span><span·class="p"·data-group-id="9876115867-1">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Pid</span><span·class="p"·data-group-id="9876115867-1">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·cla[·...·truncated·by·diffoscope;·len:·482,·SHA:·4d88f9275705f549c8687b0f3869e87ec6df073a1e952f9935e78c269437022e·...·]7-2">)</span><span·class="p">.</span><span·class="w"> |
| 130 | ······</span><span·class="p"·data-group-id=" | 130 | ······</span><span·class="p"·data-group-id="9876115867-5">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="o"><</span><span·class="mf">0.65</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="p"·data-group-id="9876115867-5">}</span>[·...·truncated·by·diffoscope;·len:·896,·SHA:·84be1607d840c3edfb66e5887357f7a0f028bf76c0d77584ea0ade6fa9a6e368·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 131 | ······</span><span·class="p"·data-group-id=" | 131 | ······</span><span·class="p"·data-group-id="8150371093-4">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="p"·data-group-id="8150371093-5"><<</span><span·class="s">"Erlang/OTP·21\n"</span><span·class="p"·data-group-id="8150371093-5">>></span><span·class="p[·...·truncated·by·diffoscope;·len:·27,·SHA:·8ab5ef37dfb16962aafdea85fa38a4c4626ba172c02a90ab98718e60432cc28b·...·]-4">}</span></code></pre> |
| 132 | </div> | 132 | </div> |
| 133 | <div·class="bottom-actions"·id="bottom-actions"> | 133 | <div·class="bottom-actions"·id="bottom-actions"> |
| 134 | ··<div·class="bottom-actions-item"> | 134 | ··<div·class="bottom-actions-item"> |
| 135 | ······<a·href="introduction.html"·class="bottom-actions-button"·rel="prev"> | 135 | ······<a·href="introduction.html"·class="bottom-actions-button"·rel="prev"> |
| 136 | ········<span·class="subheader"> | 136 | ········<span·class="subheader"> |
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| 168 | ······<p·class="built-using"> | 168 | ······<p·class="built-using"> |
| 169 | ········Built·using | 169 | ········Built·using |
| 170 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 170 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 171 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 171 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 172 | ······</p> | 172 | ······</p> |
| 173 | <p>Copyright·©·1996-202 | 173 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 174 | ····</footer> | 174 | ····</footer> |
| 175 | ··</div> | 175 | ··</div> |
| 176 | </main> | 176 | </main> |
| 177 | </div> | 177 | </div> |
| 178 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 178 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 179 | ··<script> | 179 | ··<script> |
| 180 | ··let·initialized·=·false; | 180 | ··let·initialized·=·false; |
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| 185 | ······<p·class="built-using"> | 185 | ······<p·class="built-using"> |
| 186 | ········Built·using | 186 | ········Built·using |
| 187 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 187 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 188 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 188 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 189 | ······</p> | 189 | ······</p> |
| 190 | <p>Copyright·©·1996-202 | 190 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 191 | ····</footer> | 191 | ····</footer> |
| 192 | ··</div> | 192 | ··</div> |
| 193 | </main> | 193 | </main> |
| 194 | </div> | 194 | </div> |
| 195 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 195 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 196 | ··<script> | 196 | ··<script> |
| 197 | ··let·initialized·=·false; | 197 | ··let·initialized·=·false; |
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| 320 | ······<p·class="built-using"> | 320 | ······<p·class="built-using"> |
| 321 | ········Built·using | 321 | ········Built·using |
| 322 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 322 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 323 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 323 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 324 | ······</p> | 324 | ······</p> |
| 325 | <p>Copyright·©·1996-202 | 325 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 326 | ····</footer> | 326 | ····</footer> |
| 327 | ··</div> | 327 | ··</div> |
| 328 | </main> | 328 | </main> |
| 329 | </div> | 329 | </div> |
| 330 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 330 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 331 | ··<script> | 331 | ··<script> |
| 332 | ··let·initialized·=·false; | 332 | ··let·initialized·=·false; |
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| 118 | <div·id="search"> | 118 | <div·id="search"> |
| 119 | ··<h1> | 119 | ··<h1> |
| 120 | ····<span></span> | 120 | ····<span></span> |
| 121 | ··</h1> | 121 | ··</h1> |
| 122 | ··<div·class="loading"><div></div><div></div><div></div><div></div></div> | 122 | ··<div·class="loading"><div></div><div></div><div></div><div></div></div> |
| 123 | </div> | 123 | </div> |
| 124 | <script·src="dist/search_data- | 124 | <script·src="dist/search_data-236D9DDF.js"></script> |
| 125 | ····<footer·class="footer"> | 125 | ····<footer·class="footer"> |
| 126 | ······<p> | 126 | ······<p> |
| 127 | ········<span·class="line"> | 127 | ········<span·class="line"> |
| 128 | ··········<button·class="a-main·footer-button·display-quick-switch"·title="Search·HexDocs·packages"> | 128 | ··········<button·class="a-main·footer-button·display-quick-switch"·title="Search·HexDocs·packages"> |
| 129 | ············Search·HexDocs | 129 | ············Search·HexDocs |
| 130 | ··········</button> | 130 | ··········</button> |
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| 141 | ······<p·class="built-using"> | 141 | ······<p·class="built-using"> |
| 142 | ········Built·using | 142 | ········Built·using |
| 143 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 143 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 144 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 144 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 145 | ······</p> | 145 | ······</p> |
| 146 | <p>Copyright·©·1996-202 | 146 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 147 | ····</footer> | 147 | ····</footer> |
| 148 | ··</div> | 148 | ··</div> |
| 149 | </main> | 149 | </main> |
| 150 | </div> | 150 | </div> |
| 151 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 151 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 152 | ··<script> | 152 | ··<script> |
| 153 | ··let·initialized·=·false; | 153 | ··let·initialized·=·false; |
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| 130 | ····<section·id="moduledoc"> | 130 | ····<section·id="moduledoc"> |
| 131 | <p>Trivial·FTP.</p><p>Interface·module·for·the·<code·class="inline">tftp</code>·application.</p><h2·id="module-overwiew"·class="section-heading"> | 131 | <p>Trivial·FTP.</p><p>Interface·module·for·the·<code·class="inline">tftp</code>·application.</p><h2·id="module-overwiew"·class="section-heading"> |
| 132 | ··<a·href="#module-overwiew"·class="hover-link"> | 132 | ··<a·href="#module-overwiew"·class="hover-link"> |
| 133 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 133 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 134 | ··</a> | 134 | ··</a> |
| 135 | ··<span·class="text">Overwiew</span> | 135 | ··<span·class="text">Overwiew</span> |
| 136 | </h2> | 136 | </h2> |
| 137 | <p>This·is·a·complete·implementation·of·the·following·IETF·standards:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">RFC</span><span·class="w">·</span><span·class="mi">1350</span><span·class="p">,</span><span·class="w">·</span><span·class="n">The</span><span·class="w">·</span><span·class="n">TFTP</span><span·class="w">·</span><span·class="n">Protocol</span><span·class="w">·</span><span·class="p"·data-group-id=" | 137 | <p>This·is·a·complete·implementation·of·the·following·IETF·standards:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">RFC</span><span·class="w">·</span><span·class="mi">1350</span><span·class="p">,</span><span·class="w">·</span><span·class="n">The</span><span·class="w">·</span><span·class="n">TFTP</span><span·class="w">·</span><span·class="n">Protocol</span><span·class="w">·</span><span·class="p"·data-group-id="7246611523-1">(</span><span·class="ss">revision</span><span·class="w">·</span><span·class="mi">2</span><span·class="p"·data-group-id="7246611523-1">)</span><span·class="p">.</span><span·class="w"> |
| 138 | </span><span·class="n">RFC</span><span·class="w">·</span><span·class="mi">2347</span><span·class="p">,</span><span·class="w">·</span><span·class="n">TFTP</span><span·class="w">·</span><span·class="n">Option</span><span·class="w">·</span><span·class="n">Extension</span><span·class="p">.</span><span·class="w"> | 138 | </span><span·class="n">RFC</span><span·class="w">·</span><span·class="mi">2347</span><span·class="p">,</span><span·class="w">·</span><span·class="n">TFTP</span><span·class="w">·</span><span·class="n">Option</span><span·class="w">·</span><span·class="n">Extension</span><span·class="p">.</span><span·class="w"> |
| 139 | </span><span·class="n">RFC</span><span·class="w">·</span><span·class="mi">2348</span><span·class="p">,</span><span·class="w">·</span><span·class="n">TFTP</span><span·class="w">·</span><span·class="n">Blocksize</span><span·class="w">·</span><span·class="n">Option</span><span·class="p">.</span><span·class="w"> | 139 | </span><span·class="n">RFC</span><span·class="w">·</span><span·class="mi">2348</span><span·class="p">,</span><span·class="w">·</span><span·class="n">TFTP</span><span·class="w">·</span><span·class="n">Blocksize</span><span·class="w">·</span><span·class="n">Option</span><span·class="p">.</span><span·class="w"> |
| 140 | </span><span·class="n">RFC</span><span·class="w">·</span><span·class="mi">2349</span><span·class="p">,</span><span·class="w">·</span><span·class="n">TFTP</span><span·class="w">·</span><span·class="n">Timeout</span><span·class="w">·</span><span·class="n">Interval</span><span·class="w">·</span><span·class="ow">and</span><span·class="w">·</span><span·class="n">Transfer</span><span·class="w">·</span><span·class="n">Size</span><span·class="w">·</span><span·class="n">Options</span><span·class="p">.</span></code></pre><p>The·only·feature·that·not·is·implemented·in·this·release·is | 140 | </span><span·class="n">RFC</span><span·class="w">·</span><span·class="mi">2349</span><span·class="p">,</span><span·class="w">·</span><span·class="n">TFTP</span><span·class="w">·</span><span·class="n">Timeout</span><span·class="w">·</span><span·class="n">Interval</span><span·class="w">·</span><span·class="ow">and</span><span·class="w">·</span><span·class="n">Transfer</span><span·class="w">·</span><span·class="n">Size</span><span·class="w">·</span><span·class="n">Options</span><span·class="p">.</span></code></pre><p>The·only·feature·that·not·is·implemented·in·this·release·is |
| 141 | the·"netascii"·transfer·mode.</p><p>The·<a·href="#start/1">start</a>·function·starts·a·daemon·process·which,·listens | 141 | the·"netascii"·transfer·mode.</p><p>The·<a·href="#start/1">start</a>·function·starts·a·daemon·process·which,·listens |
| 142 | for·UDP·packets·on·a·port.·When·it·receives·a·request·for·read·or | 142 | for·UDP·packets·on·a·port.·When·it·receives·a·request·for·read·or |
| 143 | write·it·spawns·a·temporary·server·process·which·handles·the·actual | 143 | write·it·spawns·a·temporary·server·process·which·handles·the·actual |
| 144 | transfer·of·the·file.·On·the·client·side·the | 144 | transfer·of·the·file.·On·the·client·side·the |
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| 948 | ······<p·class="built-using"> | 948 | ······<p·class="built-using"> |
| 949 | ········Built·using | 949 | ········Built·using |
| 950 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 950 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 951 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 951 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 952 | ······</p> | 952 | ······</p> |
| 953 | <p>Copyright·©·1996-202 | 953 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 954 | ····</footer> | 954 | ····</footer> |
| 955 | ··</div> | 955 | ··</div> |
| 956 | </main> | 956 | </main> |
| 957 | </div> | 957 | </div> |
| 958 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 958 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 959 | ··<script> | 959 | ··<script> |
| 960 | ··let·initialized·=·false; | 960 | ··let·initialized·=·false; |
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| 301 | ······<p·class="built-using"> | 301 | ······<p·class="built-using"> |
| 302 | ········Built·using | 302 | ········Built·using |
| 303 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 303 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 304 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 304 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 305 | ······</p> | 305 | ······</p> |
| 306 | <p>Copyright·©·1996-202 | 306 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 307 | ····</footer> | 307 | ····</footer> |
| 308 | ··</div> | 308 | ··</div> |
| 309 | </main> | 309 | </main> |
| 310 | </div> | 310 | </div> |
| 311 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 311 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 312 | ··<script> | 312 | ··<script> |
| 313 | ··let·initialized·=·false; | 313 | ··let·initialized·=·false; |
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| 143 | ······<p·class="built-using"> | 143 | ······<p·class="built-using"> |
| 144 | ········Built·using | 144 | ········Built·using |
| 145 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 145 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 146 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 146 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 147 | ······</p> | 147 | ······</p> |
| 148 | <p>Copyright·©·1996-202 | 148 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 149 | ····</footer> | 149 | ····</footer> |
| 150 | ··</div> | 150 | ··</div> |
| 151 | </main> | 151 | </main> |
| 152 | </div> | 152 | </div> |
| 153 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 153 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 154 | ··<script> | 154 | ··<script> |
| 155 | ··let·initialized·=·false; | 155 | ··let·initialized·=·false; |
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| 256 | ······<p·class="built-using"> | 256 | ······<p·class="built-using"> |
| 257 | ········Built·using | 257 | ········Built·using |
| 258 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 258 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 259 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 259 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 260 | ······</p> | 260 | ······</p> |
| 261 | <p>Copyright·©·1996-202 | 261 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 262 | ····</footer> | 262 | ····</footer> |
| 263 | ··</div> | 263 | ··</div> |
| 264 | </main> | 264 | </main> |
| 265 | </div> | 265 | </div> |
| 266 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 266 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 267 | ··<script> | 267 | ··<script> |
| 268 | ··let·initialized·=·false; | 268 | ··let·initialized·=·false; |
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| 1507 | ······</div> | 1507 | ······</div> |
| 1508 | <p>Analyzes·one·or·more·modules·as·specified·by·<code·class="inline">Arg</code>.</p><p>If·<code·class="inline">Arg</code>·is·one·of·the·values·in·<a·href="#t:analysis/0"><code·class="inline">analysis()</code></a>,·this | 1508 | <p>Analyzes·one·or·more·modules·as·specified·by·<code·class="inline">Arg</code>.</p><p>If·<code·class="inline">Arg</code>·is·one·of·the·values·in·<a·href="#t:analysis/0"><code·class="inline">analysis()</code></a>,·this |
| 1509 | call·is·equivalent·to·<a·href="#analyse/3"><code·class="inline">analyse('_',·Arg,·function)</code></a>.</p><p>If·<code·class="inline">Arg</code>·is·one·of·the·values·in·<a·href="#t:level/0"><code·class="inline">level()</code></a>,·this | 1509 | call·is·equivalent·to·<a·href="#analyse/3"><code·class="inline">analyse('_',·Arg,·function)</code></a>.</p><p>If·<code·class="inline">Arg</code>·is·one·of·the·values·in·<a·href="#t:level/0"><code·class="inline">level()</code></a>,·this |
| 1510 | call·is·equivalent·to·<a·href="#analyse/3"><code·class="inline">analyse('_',·coverage,·Arg)</code></a>.</p><p>Otherwise·<code·class="inline">Arg</code>·is·assumed·to·be·a·module·name,·and·this·call·is·equivalent | 1510 | call·is·equivalent·to·<a·href="#analyse/3"><code·class="inline">analyse('_',·coverage,·Arg)</code></a>.</p><p>Otherwise·<code·class="inline">Arg</code>·is·assumed·to·be·a·module·name,·and·this·call·is·equivalent |
| 1511 | to·<a·href="#analyse/3"><code·class="inline">analyse(Arg,·coverage,·function)</code></a>.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>To·analyze·a·module·whose·name·overlaps·with·one·the·values·in | 1511 | to·<a·href="#analyse/3"><code·class="inline">analyse(Arg,·coverage,·function)</code></a>.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>To·analyze·a·module·whose·name·overlaps·with·one·the·values·in |
| 1512 | <a·href="#t:analysis/0"><code·class="inline">analysis()</code></a>·or·<a·href="#t:level/0"><code·class="inline">level()</code></a>,·the·module | 1512 | <a·href="#t:analysis/0"><code·class="inline">analysis()</code></a>·or·<a·href="#t:level/0"><code·class="inline">level()</code></a>,·the·module |
| 1513 | name·has·to·be·in·a·list.·For·example,·to·analyze·a·module·named·<code·class="inline">calls</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">cover</span><span·class="p">:</span><span·class="nf">analyse</span><span·class="p"·data-group-id="8 | 1513 | name·has·to·be·in·a·list.·For·example,·to·analyze·a·module·named·<code·class="inline">calls</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">cover</span><span·class="p">:</span><span·class="nf">analyse</span><span·class="p"·data-group-id="0875201135-1">(</span><span·class="p"·data-group-id="0875201135-2">[</span><span·class="ss">calls</span><span·class="p"·data-group-id="0875201135-2">]</span><span·class="p"·data-group-id="0875201135-1">)</span><span·class="p">.</span></code></pre></section> |
| 1514 | ··</section> | 1514 | ··</section> |
| 1515 | </section> | 1515 | </section> |
| 1516 | <section·class="detail"·id="analyse/2"> | 1516 | <section·class="detail"·id="analyse/2"> |
| 1517 | ··<div·class="detail-header"> | 1517 | ··<div·class="detail-header"> |
| 1518 | ····<a·href="#analyse/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 1518 | ····<a·href="#analyse/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 1519 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 1519 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
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| 1547 | <p>Analyzes·one·or·more·modules·as·specified·by·<code·class="inline">Arg1</code>·and·<code·class="inline">Arg2</code>.</p><p>If·<code·class="inline">Arg1</code>·is·one·of·the·values·in·<a·href="#t:analysis/0"><code·class="inline">analysis()</code></a>·and | 1547 | <p>Analyzes·one·or·more·modules·as·specified·by·<code·class="inline">Arg1</code>·and·<code·class="inline">Arg2</code>.</p><p>If·<code·class="inline">Arg1</code>·is·one·of·the·values·in·<a·href="#t:analysis/0"><code·class="inline">analysis()</code></a>·and |
| 1548 | <code·class="inline">Arg2</code>·is·one·of·the·values·in·<a·href="#t:level/0"><code·class="inline">level()</code></a>,·this | 1548 | <code·class="inline">Arg2</code>·is·one·of·the·values·in·<a·href="#t:level/0"><code·class="inline">level()</code></a>,·this |
| 1549 | call·is·equivalent·to·<a·href="#analyse/3"><code·class="inline">analyse('_',·Arg1,·Arg2)</code></a>.</p><p>If·<code·class="inline">Arg2</code>·is·one·of·the·values·in·<a·href="#t:analysis/0"><code·class="inline">analysis()</code></a>, | 1549 | call·is·equivalent·to·<a·href="#analyse/3"><code·class="inline">analyse('_',·Arg1,·Arg2)</code></a>.</p><p>If·<code·class="inline">Arg2</code>·is·one·of·the·values·in·<a·href="#t:analysis/0"><code·class="inline">analysis()</code></a>, |
| 1550 | <code·class="inline">Arg1</code>·is·assumed·to·be·a·module·and·this·call·is·equivalent·to | 1550 | <code·class="inline">Arg1</code>·is·assumed·to·be·a·module·and·this·call·is·equivalent·to |
| 1551 | <a·href="#analyse/3"><code·class="inline">analyse(Arg1,·Arg2,·function)</code></a>.</p><p>If·<code·class="inline">Arg2</code>·is·one·of·the·values·in·<a·href="#t:level/0"><code·class="inline">level()</code></a>,·<code·class="inline">Arg1</code>·is | 1551 | <a·href="#analyse/3"><code·class="inline">analyse(Arg1,·Arg2,·function)</code></a>.</p><p>If·<code·class="inline">Arg2</code>·is·one·of·the·values·in·<a·href="#t:level/0"><code·class="inline">level()</code></a>,·<code·class="inline">Arg1</code>·is |
| 1552 | assumed·to·be·a·module·and·this·call·is·equivalent·to·<a·href="#analyse/3"><code·class="inline">analyse(Arg1,·coverage,·Arg2)</code></a>.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>To·analyze·a·module·whose·name·overlaps·with·one·of·the·values·in | 1552 | assumed·to·be·a·module·and·this·call·is·equivalent·to·<a·href="#analyse/3"><code·class="inline">analyse(Arg1,·coverage,·Arg2)</code></a>.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>To·analyze·a·module·whose·name·overlaps·with·one·of·the·values·in |
| 1553 | <a·href="#t:analysis/0"><code·class="inline">analysis()</code></a>,·the·module·name·needs·to·be·in·a | 1553 | <a·href="#t:analysis/0"><code·class="inline">analysis()</code></a>,·the·module·name·needs·to·be·in·a |
| 1554 | list.·For·example,·to·analyze·a·module·named·<code·class="inline">calls</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">cover</span><span·class="p">:</span><span·class="nf">analyse</span><span·class="p"·data-group-id=" | 1554 | list.·For·example,·to·analyze·a·module·named·<code·class="inline">calls</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">cover</span><span·class="p">:</span><span·class="nf">analyse</span><span·class="p"·data-group-id="0826129817-1">(</span><span·class="p"·data-group-id="0826129817-2">[</span><span·class="ss">calls</span><span·class="p"·data-group-id="0826129817-2">]</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">function</span><span·class="p"·dat[·...·truncated·by·diffoscope;·len:·21,·SHA:·7f84c6c383051d0ff8c04e1baff6a88af195c48c491b2c1c38904837f88d0824·...·]7-1">)</span><span·class="p">.</span></code></pre></section> |
| 1555 | ··</section> | 1555 | ··</section> |
| 1556 | </section> | 1556 | </section> |
| 1557 | <section·class="detail"·id="analyse/3"> | 1557 | <section·class="detail"·id="analyse/3"> |
| 1558 | ··<div·class="detail-header"> | 1558 | ··<div·class="detail-header"> |
| 1559 | ····<a·href="#analyse/3"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 1559 | ····<a·href="#analyse/3"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 1560 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 1560 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 1650, 15 lines modified | Offset 1650, 15 lines modified | ||
| 1650 | ······</div> | 1650 | ······</div> |
| 1651 | <p>If·<code·class="inline">Arg</code>·is·a·list·of·<a·href="#t:analyse_option/0"><code·class="inline">analyse_option()</code></a> | 1651 | <p>If·<code·class="inline">Arg</code>·is·a·list·of·<a·href="#t:analyse_option/0"><code·class="inline">analyse_option()</code></a> |
| 1652 | options,·this·call·is·equivalent·to·<a·href="#analyse_to_file/2"><code·class="inline">analyse_to_file('_',·Arg)</code></a>.</p><p>Otherwise·<code·class="inline">Arg</code>·is·assumed·to·be·a·module,·and·this·call·is·equivalent·to | 1652 | options,·this·call·is·equivalent·to·<a·href="#analyse_to_file/2"><code·class="inline">analyse_to_file('_',·Arg)</code></a>.</p><p>Otherwise·<code·class="inline">Arg</code>·is·assumed·to·be·a·module,·and·this·call·is·equivalent·to |
| 1653 | <a·href="#analyse_to_file/2"><code·class="inline">analyse_to_file(Arg,·[])</code></a>.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>To·analyze·a·module·of·the·name·<code·class="inline">html</code>·(which·overlaps·with·an·option | 1653 | <a·href="#analyse_to_file/2"><code·class="inline">analyse_to_file(Arg,·[])</code></a>.</p><section·role="note"·class="admonition·info"><h4·class="admonition-title·info">Note</h4><p>To·analyze·a·module·of·the·name·<code·class="inline">html</code>·(which·overlaps·with·an·option |
| 1654 | in·<a·href="#t:analyse_option/0"><code·class="inline">analyse_option()</code></a>),·it·is·necessary·to | 1654 | in·<a·href="#t:analyse_option/0"><code·class="inline">analyse_option()</code></a>),·it·is·necessary·to |
| 1655 | use·<a·href="#analyse_to_file/2"><code·class="inline">cover:analyse_to_file/2</code></a>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">cover</span><span·class="p">:</span><span·class="nf">analyse_to_file</span><span·class="p"·data-group-id=" | 1655 | use·<a·href="#analyse_to_file/2"><code·class="inline">cover:analyse_to_file/2</code></a>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">cover</span><span·class="p">:</span><span·class="nf">analyse_to_file</span><span·class="p"·data-group-id="5702644087-1">(</span><span·class="p"·data-group-id="5702644087-2">[</span><span·class="ss">html</span><span·class="p"·data-group-id="5702644087-2">]</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="5702644087-3">[</span[·...·truncated·by·diffoscope;·len:·95,·SHA:·ebdb6b2562cc2cb27fcfe6cb017598bb8b25ae5ffc5e98811a5c9feb5046252e·...·]-1">)</span><span·class="p">.</span></code></pre></section> |
| 1656 | ··</section> | 1656 | ··</section> |
| 1657 | </section> | 1657 | </section> |
| 1658 | <section·class="detail"·id="analyse_to_file/2"> | 1658 | <section·class="detail"·id="analyse_to_file/2"> |
| 1659 | ··<div·class="detail-header"> | 1659 | ··<div·class="detail-header"> |
| 1660 | ····<a·href="#analyse_to_file/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> | 1660 | ····<a·href="#analyse_to_file/2"·class="detail-link"·data-no-tooltip·aria-label="Link·to·this·function"> |
| 1661 | ······<i·class="ri-link-m"·aria-hidden="true"></i> | 1661 | ······<i·class="ri-link-m"·aria-hidden="true"></i> |
| Offset 2583, 15 lines modified | Offset 2583, 15 lines modified | ||
| 2583 | ······<p·class="built-using"> | 2583 | ······<p·class="built-using"> |
| 2584 | ········Built·using | 2584 | ········Built·using |
| 2585 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 2585 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 2586 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 2586 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 2587 | ······</p> | 2587 | ······</p> |
| 2588 | <p>Copyright·©·1996-202 | 2588 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 2589 | ····</footer> | 2589 | ····</footer> |
| 2590 | ··</div> | 2590 | ··</div> |
| 2591 | </main> | 2591 | </main> |
| 2592 | </div> | 2592 | </div> |
| 2593 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 2593 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 2594 | ··<script> | 2594 | ··<script> |
| 2595 | ··let·initialized·=·false; | 2595 | ··let·initialized·=·false; |
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| 574 | ······<div·class="specs"> | 574 | ······<div·class="specs"> |
| 575 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·analyse(Mod,·Limit)·->·ModAnalysis·::·<a·href="#t:mod_analysis/0">mod_analysis</a>() | 575 | ··········<pre·translate="no"><span·class="attribute">-spec</span>·analyse(Mod,·Limit)·->·ModAnalysis·::·<a·href="#t:mod_analysis/0">mod_analysis</a>() |
| 576 | ·················when·Mod·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:module/0">module</a>(),·Limit·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:non_neg_integer/0">non_neg_integer</a>().</pre> | 576 | ·················when·Mod·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:module/0">module</a>(),·Limit·::·<a·href="../../../../erts-16.0/doc/html/erlang.html#t:non_neg_integer/0">non_neg_integer</a>().</pre> |
| 577 | ······</div> | 577 | ······</div> |
| 578 | <p>Collects·and·analyses·all·call·counters·for·module·<code·class="inline">Module</code>.</p><p>This·function·returns:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 578 | <p>Collects·and·analyses·all·call·counters·for·module·<code·class="inline">Module</code>.</p><p>This·function·returns:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="4297173406-1">{</span><span·class="n">Module</span><span·class="p">,</span><span·class="w">·</span><span·class="n">ModuleCount</span><span·class="p">,</span><span·class="w">·</span><span·class="n">FuncAnalysisList</span><span·class="p"·data-group-id="42971[·...·truncated·by·diffoscope;·len:·651,·SHA:·2737660fcd4d4e832def6abadc6c1e91e858525019ea0e58744f2a09c58caead·...·]-1">}</span></code></pre><p>If·call·counters·are·still·running·while·<code·class="inline">analyse/0,1,2</code>·is·executing,·the·result |
| 579 | could·be·inconsistent.·This·happens·if·the·process·executing·<code·class="inline">analyse/0,1,2</code> | 579 | could·be·inconsistent.·This·happens·if·the·process·executing·<code·class="inline">analyse/0,1,2</code> |
| 580 | is·scheduled·out·so·some·other·process·can·increment·the·counters·that·are | 580 | is·scheduled·out·so·some·other·process·can·increment·the·counters·that·are |
| 581 | being·analysed.·Calling·<a·href="#pause/0"><code·class="inline">pause()</code></a>·before·analysing·takes·care·of | 581 | being·analysed.·Calling·<a·href="#pause/0"><code·class="inline">pause()</code></a>·before·analysing·takes·care·of |
| 582 | that·problem.</p><p>All·functions·with·a·<code·class="inline">FuncCallCount</code>·lower·than·<code·class="inline">Limit</code>·are·excluded·from | 582 | that·problem.</p><p>All·functions·with·a·<code·class="inline">FuncCallCount</code>·lower·than·<code·class="inline">Limit</code>·are·excluded·from |
| 583 | <code·class="inline">FuncAnalysisList</code>.·They·are·still·included·in·<code·class="inline">ModCallCount</code>,·though.</p> | 583 | <code·class="inline">FuncAnalysisList</code>.·They·are·still·included·in·<code·class="inline">ModCallCount</code>,·though.</p> |
| 584 | ··</section> | 584 | ··</section> |
| 585 | </section> | 585 | </section> |
| Offset 1063, 15 lines modified | Offset 1063, 15 lines modified | ||
| 1063 | ······<p·class="built-using"> | 1063 | ······<p·class="built-using"> |
| 1064 | ········Built·using | 1064 | ········Built·using |
| 1065 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1065 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1066 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1066 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1067 | ······</p> | 1067 | ······</p> |
| 1068 | <p>Copyright·©·1996-202 | 1068 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1069 | ····</footer> | 1069 | ····</footer> |
| 1070 | ··</div> | 1070 | ··</div> |
| 1071 | </main> | 1071 | </main> |
| 1072 | </div> | 1072 | </div> |
| 1073 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1073 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1074 | ··<script> | 1074 | ··<script> |
| 1075 | ··let·initialized·=·false; | 1075 | ··let·initialized·=·false; |
| Offset 152, 130 lines modified | Offset 152, 130 lines modified | ||
| 152 | no·trace·message·has·to·be·generated.·Some·measurements·indicates·performance | 152 | no·trace·message·has·to·be·generated.·Some·measurements·indicates·performance |
| 153 | degradations·in·the·vicinity·of·10·percent.</p><p>The·following·sections·show·some·examples·of·profiling·with·<a·href="cprof.html"><code·class="inline">cprof</code></a>.</p><h2·id="example-background-work"·class="section-heading"> | 153 | degradations·in·the·vicinity·of·10·percent.</p><p>The·following·sections·show·some·examples·of·profiling·with·<a·href="cprof.html"><code·class="inline">cprof</code></a>.</p><h2·id="example-background-work"·class="section-heading"> |
| 154 | ··<a·href="#example-background-work"·class="hover-link"> | 154 | ··<a·href="#example-background-work"·class="hover-link"> |
| 155 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 155 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 156 | ··</a> | 156 | ··</a> |
| 157 | ··<span·class="text">Example:·Background·work</span> | 157 | ··<span·class="text">Example:·Background·work</span> |
| 158 | </h2> | 158 | </h2> |
| 159 | <p>From·the·Erlang·shell:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">cprof</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id=" | 159 | <p>From·the·Erlang·shell:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">cprof</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id="0839685283-1">(</span><span·class="p"·data-group-id="0839685283-1">)</span><span·class="p">,</span><span·class="w">·</span><span·class="nc">cprof</span><span·class="p">:</span><span·class="nf">pause</span><span·class="p"·data-group-id="0839685283-2">(</spa[·...·truncated·by·diffoscope;·len:·42,·SHA:·b5a43e580cea22bc09c55b1a9bd0c24ca18dd01fe9c985361698a7f26205c526·...·]3-2">)</span><span·class="p">.</span><span·class="w">·</span><span·class="c1">%·Stop·counters·just·after·start</span><span·class="w"> |
| 160 | </span><span·class="mi">8492</span><span·class="gp·unselectable"> | 160 | </span><span·class="mi">8492</span><span·class="gp·unselectable"> |
| 161 | 2>·</span><span·class="nc">cprof</span><span·class="p">:</span><span·class="nf">analyse</span><span·class="p"·data-group-id=" | 161 | 2>·</span><span·class="nc">cprof</span><span·class="p">:</span><span·class="nf">analyse</span><span·class="p"·data-group-id="0839685283-3">(</span><span·class="p"·data-group-id="0839685283-3">)</span><span·class="p">.</span><span·class="w"> |
| 162 | </span><span·class="p"·data-group-id=" | 162 | </span><span·class="p"·data-group-id="0839685283-4">{</span><span·class="mi">539</span><span·class="p">,</span><span·class="w"> |
| 163 | ·</span><span·class="p"·data-group-id=" | 163 | ·</span><span·class="p"·data-group-id="0839685283-5">[</span><span·class="p"·data-group-id="0839685283-6">{</span><span·class="ss">shell</span><span·class="p">,</span><span·class="mi">155</span><span·class="p">,</span><span·class="w"> |
| 164 | ·········</span><span·class="p"·data-group-id=" | 164 | ·········</span><span·class="p"·data-group-id="0839685283-7">[</span><span·class="p"·data-group-id="0839685283-8">{</span><span·class="p"·data-group-id="0839685283-9">{</span><span·class="ss">shell</span><span·class="p">,</span><span·class="ss">prep_check</span><span·class="p">,</span><span·class="mi">[·...·truncated·by·diffoscope;·len:·151,·SHA:·00b210fc85639f73c086b43158677a659114546189fa4c2e2453afa02aabf37a·...·]3-8">}</span><span·class="p">,</span><span·class="w"> |
| 165 | ··········</span><span·class="p"·data-group-id=" | 165 | ··········</span><span·class="p"·data-group-id="0839685283-10">{</span><span·class="p"·data-group-id="0839685283-11">{</span><span·class="ss">shell</span><span·class="p">,</span><span·class="ss">used_records</span><span·class="p">,</span><span·class="mi">4</span><span·class="p"·data-group-id="0839685283[·...·truncated·by·diffoscope;·len:·103,·SHA:·8999b4c9272682c142bea1307fd6cf0f650cbf372be967af24726f88738963de·...·]3-10">}</span><span·class="p">,</span><span·class="w"> |
| 166 | ··········</span><span·class="p"·data-group-id=" | 166 | ··········</span><span·class="p"·data-group-id="0839685283-12">{</span><span·class="p"·data-group-id="0839685283-13">{</span><span·class="ss">shell</span><span·class="p">,</span><span·class="ss">used_records</span><span·class="p">,</span><span·class="mi">1</span><span·class="p"·data-group-id="0839685283[·...·truncated·by·diffoscope;·len:·103,·SHA:·c915e3fae5b777dae302da0d021c4c07c395090be3e15a51e3e2a73c72abf565·...·]3-12">}</span><span·class="p">,</span><span·class="w"> |
| 167 | ··········</span><span·class="p"·data-group-id=" | 167 | ··········</span><span·class="p"·data-group-id="0839685283-14">{</span><span·class="p"·data-group-id="0839685283-15">{</span><span·class="ss">shell</span><span·class="p">,</span><span·class="ss">used_record_defs</span><span·class="p">,</span><span·class="mi">2</span><span·class="p"·data-group-id="083968[·...·truncated·by·diffoscope;·len:·106,·SHA:·7b51d9cf1d174b0d25d14fc7d966b25072427c78fc7f6f74d8b756fc19980a35·...·]3-14">}</span><span·class="p">,</span><span·class="w"> |
| 168 | ··········</span><span·class="p"·data-group-id=" | 168 | ··········</span><span·class="p"·data-group-id="0839685283-16">{</span><span·class="p"·data-group-id="0839685283-17">{</span><span·class="ss">shell</span><span·class="p">,</span><span·class="ss">record_defs</span><span·class="p">,</span><span·class="mi">2</span><span·class="p"·data-group-id="0839685283-[·...·truncated·by·diffoscope;·len:·101,·SHA:·ea7dfc9e0ef2dfea5825c3516ed771fbabe386e71b7839451cf6a6fc2c37a4a9·...·]3-16">}</span><span·class="p">,</span><span·class="w"> |
| 169 | ··········</span><span·class="p"·data-group-id=" | 169 | ··········</span><span·class="p"·data-group-id="0839685283-18">{</span><span·class="p"·data-group-id="0839685283-19">{</span><span·class="ss">shell</span><span·class="p">,</span><span·class="ss">record_bindings</span><span·class="p">,</span><span·class="mi">2</span><span·class="p"·data-group-id="0839685[·...·truncated·by·diffoscope;·len:·105,·SHA:·d41fbfe5b8b942347184fbc0e378334f0d06daaee024c1fb7dc6725a6a1ce79a·...·]3-18">}</span><span·class="p">,</span><span·class="w"> |
| 170 | ··········</span><span·class="p"·data-group-id=" | 170 | ··········</span><span·class="p"·data-group-id="0839685283-20">{</span><span·class="p"·data-group-id="0839685283-21">{</span><span·class="ss">shell</span><span·class="p">,</span><span·class="ss">exprs</span><span·class="p">,</span><span·class="mi">7</span><span·class="p"·data-group-id="0839685283-21">}<[·...·truncated·by·diffoscope;·len:·95,·SHA:·d1915f58055ba8ab686f72944962ae746665a31c1dbf552fafd417d55572f030·...·]3-20">}</span><span·class="p">,</span><span·class="w"> |
| 171 | ··········</span><span·class="p"·data-group-id=" | 171 | ··········</span><span·class="p"·data-group-id="0839685283-22">{</span><span·class="p"·data-group-id="0839685283-23">{</span><span·class="ss">shell</span><span·class="p">,</span><span·class="ss">expr</span><span·class="p">,</span><span·class="mi">4</span><span·class="p"·data-group-id="0839685283-23">}</[·...·truncated·by·diffoscope;·len:·94,·SHA:·1282aa7b2b9767bb83711f10bc150e75afb9e4a027b3394a3a25e4aec3e4a7f0·...·]3-22">}</span><span·class="p">,</span><span·class="w"> |
| 172 | ··········</span><span·class="p"·data-group-id=" | 172 | ··········</span><span·class="p"·data-group-id="0839685283-24">{</span><span·class="p"·data-group-id="0839685283-25">{</span><span·class="ss">shell</span><span·class="p">,</span><span·class="ss">expand_records</span><span·class="p">,</span><span·class="mi">2</span><span·class="p"·data-group-id="08396852[·...·truncated·by·diffoscope;·len:·104,·SHA:·df36bcff14569b2da7bae2df389712f5972703400ed900eeb1f19b8d7e826e8b·...·]3-24">}</span><span·class="p">,</span><span·class="w"> |
| 173 | ··········</span><span·class="p"·data-group-id=" | 173 | ··········</span><span·class="p"·data-group-id="0839685283-26">{</span><span·class="p"·data-group-id="0839685283-27">{</span><span·class="ss">shell</span><span·class="p">,</span><span·class="ss">check_command</span><span·class="p">,</span><span·class="mi">2</span><span·class="p"·data-group-id="083968528[·...·truncated·by·diffoscope;·len:·103,·SHA:·ea134e3d85189bf11ad6fc773e715d6e3ae6f8dc9376a249c32334eae49ec418·...·]3-26">}</span><span·class="p">,</span><span·class="w"> |
| 174 | ··········</span><span·class="p"·data-group-id=" | 174 | ··········</span><span·class="p"·data-group-id="0839685283-28">{</span><span·class="p"·data-group-id="0839685283-29">{</span><span·class="ss">shell</span><span·class="p">,</span><span·class="ss">apply_fun</span><span·class="p">,</span><span·class="mi">3</span><span·class="p"·data-group-id="0839685283-29[·...·truncated·by·diffoscope;·len:·99,·SHA:·8260af09b926d9ae1987695af619cf5176737bba29848abcaef012fa9734ec39·...·]3-28">}</span><span·class="p">,</span><span·class="w"> |
| 175 | ··········</span><span·class="p"·data-group-id=" | 175 | ··········</span><span·class="p"·data-group-id="0839685283-30">{</span><span·class="p"·data-group-id="0839685283-31">{</span><span·class="ss">shell</span><span·class="p">,</span><span·class="ss">'-exprs/7-lc$^0/1-0-'</span><span·class="p">,</span><span·class="mi">1</span><span·class="p"·data-gro[·...·truncated·by·diffoscope;·len:·119,·SHA:·9070046166c0f84dc00d83ba98f7bdb74de77a06869f0a2246e9754efd4374e8·...·]3-30">}</span><span·class="p">,</span><span·class="w"> |
| 176 | ··········</span><span·class="p"·data-group-id=" | 176 | ··········</span><span·class="p"·data-group-id="0839685283-32">{</span><span·class="p"·data-group-id="0839685283-33">{</span><span·class="ss">shell</span><span·class="p">,</span><span·class="ss">'-eval_loop/3-fun-0-'</span><span·class="p">,</span><span·class="mi">3</span><span·class="p"·data-gro[·...·truncated·by·diffoscope;·len:·226,·SHA:·ad7455a2b5bedb97e19293c56f979f9ebecd078ddb3de0673ce4e8e921303554·...·]3-6">}</span><span·class="p">,</span><span·class="w"> |
| 177 | ··</span><span·class="c1">%%·Information·about·many·modules·omitted.</span><span·class="w"> | 177 | ··</span><span·class="c1">%%·Information·about·many·modules·omitted.</span><span·class="w"> |
| 178 | ·····················</span><span·class="p">.</span><span·class="w"> | 178 | ·····················</span><span·class="p">.</span><span·class="w"> |
| 179 | ·····················</span><span·class="p">.</span><span·class="w"> | 179 | ·····················</span><span·class="p">.</span><span·class="w"> |
| 180 | ·····················</span><span·class="p">.</span><span·class="w"> | 180 | ·····················</span><span·class="p">.</span><span·class="w"> |
| 181 | ··</span><span·class="c1">%%·Here·is·the·last·part.</span><span·class="w"> | 181 | ··</span><span·class="c1">%%·Here·is·the·last·part.</span><span·class="w"> |
| 182 | ··</span><span·class="p"·data-group-id=" | 182 | ··</span><span·class="p"·data-group-id="0839685283-34">{</span><span·class="ss">erts_internal</span><span·class="p">,</span><span·class="mi">2</span><span·class="p">,</span><span·class="p"·data-group-id="0839685283-35">[</span><span·class="p"·data-group-id="0839685283-36">{</span><span·class="p"[·...·truncated·by·diffoscope;·len:·437,·SHA:·487dd47fdc671940f725ee3b4b3d84f2cb4fcd3fc4dac8a08235bbd8dcde06a5·...·]3-34">}</span><span·class="p">,</span><span·class="w"> |
| 183 | ··</span><span·class="p"·data-group-id="3899541523-38">{</span><span·class="ss">otp_internal</span><span·class="p">,</span><span·class="mi">1</span><span·class="p">,</span><span·class="p"·data-group-id="3899541523-39">[</span><span·class="p"·data-group-id="3899541523-40">{</span><span·class="p"·data-group-id="3899541523-41">{</span><span·class="ss">otp_internal</span><span·class="p">,</span><span·class="ss">obsolete</span><span·class="p">,</span><span·class="mi">3</span><span·class="p"·data-group-id="3899541523-41">}</span><span·class="p">,</span><span·class="mi">1</span><span·class="p"·data-group-id="3899541523-40">}</span><span·class="p"·data-group-id="3899541523-39">]</span><span·class="p"·data-group-id="3899541523-38">}</span><span·class="p">,</span><span·class="w"> | ||
| 184 | ··</span><span·class="p"·data-group-id="3899541523-42">{</span><span·class="ss">maps</span><span·class="p">,</span><span·class="mi">1</span><span·class="p">,</span><span·class="p"·data-group-id="3899541523-43">[</span><span·class="p"·data-group-id="3899541523-44">{</span><span·class="p"·data-group-id="3899541523-45">{</span><span·class="ss">maps</span><span·class="p">,</span><span·class="ss">from_list</span><span·class="p">,</span><span·class="mi">1</span><span·class="p"·data-group-id="3899541523-45">}</span><span·class="p">,</span><span·class="mi">1</span><span·class="p"·data-group-id="3899541523-44">}</span><span·class="p"·data-group-id="3899541523-43">]</span><span·class="p"·data-group-id="3899541523-42">}</span><span·class="p">,</span><span·class="w"> | ||
| 185 | ··</span><span·class="p"·data-group-id="3899541523-46">{</span><span·class="ss">erl_internal</span><span·class="p">,</span><span·class="mi">1</span><span·class="p">,</span><span·class="p"·data-group-id="3899541523-47">[</span><span·class="p"·data-group-id="3899541523-48">{</span><span·class="p"·data-group-id="3899541523-49">{</span><span·class="ss">erl_internal</span><span·class="p">,</span><span·class="ss">bif</span><span·class="p">,</span><span·class="mi">3</span><span·class="p"·data-group-id="3899541523-49">}</span><span·class="p">,</span><span·class="mi">1</span><span·class="p"·data-group-id="3899541523-48">}</span><span·class="p"·data-group-id="3899541523-47">]</span><span·class="p"·data-group-id="3899541523-46">}</span><span·class="p"·data-group-id="3899541523-5">]</span><span·class="p"·data-group-id="3899541523-4">}</span><span·class="gp·unselectable"> | ||
| 186 | 3>·</span><span·class="nc">cprof</span><span·class="p">:</span><span·class="nf">analyse</span><span·class="p"·data-group-id="3899541523-50">(</span><span·class="ss">cprof</span><span·class="p"·data-group-id="3899541523-50">)</span><span·class="p">.</span><span·class="w"> | ||
| 187 | </span><span·class="p"·data-group-id=" | 183 | ··</span><span·class="p"·data-group-id="0839685283-38">{</span><span·class="ss">otp_internal</span><span·class="p">,</span><span·class="mi">1</span><span·class="p">,</span><span·class="p"·data-group-id="0839685283-39">[</span><span·class="p"·data-group-id=[·...·truncated·by·diffoscope;·len:·522,·SHA:·1f408f3d89251bcaac2ac80f4c02750e7ea29af9fe1630aa4772e059223dc95b·...·]"> |
| 184 | ··</span><span·class="p"·data-group-id="0839685283-42">{</span><span·class="ss">maps</span><span·class="p">,</span><span·class="mi">1</span><span·class="p">,</span><span·class="p"·data-group-id="0839685283-43">[</span><span·class="p"·data-group-id="0839685283-44">{</span><span·class="p"·data-group-id="0839685283-45">{</span><span·class="ss">maps</span><span·class="p">,</span><span·class="ss">from_list</span><span·class="p">,</span><span·class="mi">1</span><span·class="p"·data-group-id="0839685283-45">}</span><span·class="p">,</span><span·class="mi">1</span><span·class="p"·data-group-id="0839685283-44">}</span><span·class="p"·data-group-id="0839685283-43">]</span><span·class="p"·data-group-id="0839685283-42">}</span><span·class="p">,</span><span·class="w"> | ||
| 185 | ··</span><span·class="p"·data-group-id="0839685283-46">{</span><span·class="ss">erl_internal</span><span·class="p">,</span><span·class="mi">1</span><span·class="p">,</span><span·class="p"·data-group-id="0839685283-47">[</span><span·class="p"·data-group-id="0839685283-48">{</span><span·class="p"·data-group-id="0839685283-49">{</span><span·class="ss">erl_internal</span><span·class="p">,</span><span·class="ss">bif</span><span·class="p">,</span><span·class="mi">3</span><span·class="p"·data-group-id="0839685283-49">}</span><span·class="p">,</span><span·class="mi">1</span><span·class="p"·data-group-id="0839685283-48">}</span><span·class="p"·data-group-id="0839685283-47">]</span><span·class="p"·data-group-id="0839685283-46">}</span><span·class="p"·data-group-id="0839685283-5">]</span><span·class="p"·data-group-id="0839685283-4">}</span><span·class="gp·unselectable"> | ||
| 186 | 3>·</span><span·class="nc">cprof</span><span·class="p">:</span><span·class="nf">analyse</span><span·class="p"·data-group-id="0839685283-50">(</span><span·class="ss">cprof</span><span·class="p"·data-group-id="0839685283-50">)</span><span·class="p">.</span><span·class="w"> | ||
| 187 | </span><span·class="p"·data-group-id="0839685283-51">{</span><span·class="ss">cprof</span><span·class="p">,</span><span·class="mi">3</span><span·class="p">,</span><span·class="p"·data-group-id="0839685283-52">[</span><span·class="p"·data-group-id="0839685283-53">{</span><span·class="p"·data-group-id="0839685283-54">{</span><span·class="ss">cprof</span><span·class="p">,</span><span·class="ss">tr</span><span·class="p">,</span><span·class="mi">2</span><span·class="p"·data-group-id="0839685283-54">}</span><span·class="p">,</span><span·class="mi">2</span><span·class="p"·data-group-id="0839685283-53">}</span><span·class="p">,</span><span·class="p"·data-group-id="0839685283-55">{</span><span·class="p"·data-group-id="0839685283-56">{</span><span·class="ss">cprof</span><span·class="p">,</span><span·class="ss">pause</span><span·class="p">,</span><span·class="mi">0</span><span·class="p"·data-group-id="0839685283-56">}</span><span·class="p">,</span><span·class="mi">1</span><span·class="p"·data-group-id="0839685283-55">}</span><span·class="p"·data-group-id="0839685283-52">]</span><span·class="p"·data-group-id="0839685283-51">}</span><span·class="gp·unselectable"> | ||
| 188 | 4>·</span><span·class="nc">cprof</span><span·class="p">:</span><span·class="nf">stop</span><span·class="p"·data-group-id=" | 188 | 4>·</span><span·class="nc">cprof</span><span·class="p">:</span><span·class="nf">stop</span><span·class="p"·data-group-id="0839685283-57">(</span><span·class="p"·data-group-id="0839685283-57">)</span><span·class="p">.</span><span·class="w"> |
| 189 | </span><span·class="mi">8586</span></code></pre><p>The·example·showed·some·of·the·background·work·that·the·shell·performs·just·to | 189 | </span><span·class="mi">8586</span></code></pre><p>The·example·showed·some·of·the·background·work·that·the·shell·performs·just·to |
| 190 | interpret·the·first·command·line.</p><p>What·is·captured·in·this·example·is·the·part·of·the·work·the·shell·does·while | 190 | interpret·the·first·command·line.</p><p>What·is·captured·in·this·example·is·the·part·of·the·work·the·shell·does·while |
| 191 | interpreting·the·command·line·that·occurs·between·the·actual·calls·to | 191 | interpreting·the·command·line·that·occurs·between·the·actual·calls·to |
| 192 | <a·href="cprof.html#start/0"><code·class="inline">cprof:start()</code></a>·and·<a·href="cprof.html#analyse/1"><code·class="inline">cprof:analyse()</code></a>.</p><h2·id="example-one-module"·class="section-heading"> | 192 | <a·href="cprof.html#start/0"><code·class="inline">cprof:start()</code></a>·and·<a·href="cprof.html#analyse/1"><code·class="inline">cprof:analyse()</code></a>.</p><h2·id="example-one-module"·class="section-heading"> |
| 193 | ··<a·href="#example-one-module"·class="hover-link"> | 193 | ··<a·href="#example-one-module"·class="hover-link"> |
| 194 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 194 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 195 | ··</a> | 195 | ··</a> |
| 196 | ··<span·class="text">Example:·One·module</span> | 196 | ··<span·class="text">Example:·One·module</span> |
| 197 | </h2> | 197 | </h2> |
| 198 | <p>From·the·Erlang·shell:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">cprof</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id=" | 198 | <p>From·the·Erlang·shell:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">cprof</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id="2088309172-1">(</span><span·class="p"·data-group-id="2088309172-1">)</span><span·class="p">,</span><span·class="n">R</span><span·class="o">=</span><span·class="nc">calendar</span><span·class="p">:</span><span·class="nf">day_of_the_week</span><span·class="p[·...·truncated·by·diffoscope;·len:·419,·SHA:·922183b3fc72325a8f46662ec21f8a9af772915cee46be98d5664ad18a404fcf·...·]-3">)</span><span·class="p">,</span><span·class="n">R</span><span·class="p">.</span><span·class="w"> |
| 199 | </span><span·class="mi">1</span><span·class="gp·unselectable"> | 199 | </span><span·class="mi">1</span><span·class="gp·unselectable"> |
| 200 | 2>·</span><span·class="nc">cprof</span><span·class="p">:</span><span·class="nf">analyse</span><span·class="p"·data-group-id=" | 200 | 2>·</span><span·class="nc">cprof</span><span·class="p">:</span><span·class="nf">analyse</span><span·class="p"·data-group-id="2088309172-4">(</span><span·class="ss">calendar</span><span·class="p"·data-group-id="2088309172-4">)</span><span·class="p">.</span><span·class="w"> |
| 201 | </span><span·class="p"·data-group-id=" | 201 | </span><span·class="p"·data-group-id="2088309172-5">{</span><span·class="ss">calendar</span><span·class="p">,</span><span·class="mi">9</span><span·class="p">,</span><span·class="w"> |
| 202 | ··········</span><span·class="p"·data-group-id=" | 202 | ··········</span><span·class="p"·data-group-id="2088309172-6">[</span><span·class="p"·data-group-id="2088309172-7">{</span><span·class="p"·data-group-id="2088309172-8">{</span><span·class="ss">calendar</span><span·class="p">,</span><span·class="ss">last_day_of_the_month1</span><span·class="p">,</span><s[·...·truncated·by·diffoscope;·len:·166,·SHA:·ba5e1cb965f723d2b885494f057794466a64b1e2501fbe69c219038e6980dd9d·...·]-7">}</span><span·class="p">,</span><span·class="w"> |
| 203 | ···········</span><span·class="p"·data-group-id=" | 203 | ···········</span><span·class="p"·data-group-id="2088309172-9">{</span><span·class="p"·data-group-id="2088309172-10">{</span><span·class="ss">calendar</span><span·class="p">,</span><span·class="ss">last_day_of_the_month</span><span·class="p">,</span><span·class="mi">2</span><span·class="p"·data-group-id=[·...·truncated·by·diffoscope;·len:·114,·SHA:·e053a2f0eae7bfd54986386a98804860a8d168d2a1648ebca23120b58d550878·...·]-9">}</span><span·class="p">,</span><span·class="w"> |
| 204 | ···········</span><span·class="p"·data-group-id=" | 204 | ···········</span><span·class="p"·data-group-id="2088309172-11">{</span><span·class="p"·data-group-id="2088309172-12">{</span><span·class="ss">calendar</span><span·class="p">,</span><span·class="ss">is_leap_year1</span><span·class="p">,</span><span·class="mi">1</span><span·class="p"·data-group-id="208830[·...·truncated·by·diffoscope;·len:·107,·SHA:·ca76391567e27d10f3a7944972fcba295ad960af0a53201d63839a24561041bd·...·]-11">}</span><span·class="p">,</span><span·class="w"> |
| 205 | ···········</span><span·class="p"·data-group-id=" | 205 | ···········</span><span·class="p"·data-group-id="2088309172-13">{</span><span·class="p"·data-group-id="2088309172-14">{</span><span·class="ss">calendar</span><span·class="p">,</span><span·class="ss">is_leap_year</span><span·class="p">,</span><span·class="mi">1</span><span·class="p"·data-group-id="2088309[·...·truncated·by·diffoscope;·len:·106,·SHA:·cb98664b91386cea789668c52626bcfe99ce1dfc624516b67819d222ddb3e7ce·...·]-13">}</span><span·class="p">,</span><span·class="w"> |
| 206 | ···········</span><span·class="p"·data-group-id=" | 206 | ···········</span><span·class="p"·data-group-id="2088309172-15">{</span><span·class="p"·data-group-id="2088309172-16">{</span><span·class="ss">calendar</span><span·class="p">,</span><span·class="ss">dy</span><span·class="p">,</span><span·class="mi">1</span><span·class="p"·data-group-id="2088309172-16">}<[·...·truncated·by·diffoscope;·len:·96,·SHA:·6c6428083de8637b447b581687468211974d4ec5a98871020923f82c67cedec0·...·]-15">}</span><span·class="p">,</span><span·class="w"> |
| 207 | ···········</span><span·class="p"·data-group-id=" | 207 | ···········</span><span·class="p"·data-group-id="2088309172-17">{</span><span·class="p"·data-group-id="2088309172-18">{</span><span·class="ss">calendar</span><span·class="p">,</span><span·class="ss">dm</span><span·class="p">,</span><span·class="mi">1</span><span·class="p"·data-group-id="2088309172-18">}<[·...·truncated·by·diffoscope;·len:·96,·SHA:·6c6428083de8637b447b581687468211974d4ec5a98871020923f82c67cedec0·...·]-17">}</span><span·class="p">,</span><span·class="w"> |
| 208 | ···········</span><span·class="p"·data-group-id=" | 208 | ···········</span><span·class="p"·data-group-id="2088309172-19">{</span><span·class="p"·data-group-id="2088309172-20">{</span><span·class="ss">calendar</span><span·class="p">,</span><span·class="ss">df</span><span·class="p">,</span><span·class="mi">2</span><span·class="p"·data-group-id="2088309172-20">}<[·...·truncated·by·diffoscope;·len:·96,·SHA:·6c6428083de8637b447b581687468211974d4ec5a98871020923f82c67cedec0·...·]-19">}</span><span·class="p">,</span><span·class="w"> |
| 209 | ···········</span><span·class="p"·data-group-id=" | 209 | ···········</span><span·class="p"·data-group-id="2088309172-21">{</span><span·class="p"·data-group-id="2088309172-22">{</span><span·class="ss">calendar</span><span·class="p">,</span><span·class="ss">day_of_the_week</span><span·class="p">,</span><span·class="mi">3</span><span·class="p"·data-group-id="2088[·...·truncated·by·diffoscope;·len:·109,·SHA:·3b53287570f491626f790e3856ffdbbb98b56227cca940a6a512f31f508ea4c6·...·]-21">}</span><span·class="p">,</span><span·class="w"> |
| 210 | ···········</span><span·class="p"·data-group-id=" | 210 | ···········</span><span·class="p"·data-group-id="2088309172-23">{</span><span·class="p"·data-group-id="2088309172-24">{</span><span·class="ss">calendar</span><span·class="p">,</span><span·class="ss">date_to_gregorian_days</span><span·class="p">,</span><span·class="mi">3</span><span·class="p"·data-group-i[·...·truncated·by·diffoscope;·len:·223,·SHA:·14bae95e69dbfdfa213ca9dfe9078b4f9c1e44f1c011896a26511d2280793970·...·]-5">}</span><span·class="gp·unselectable"> |
| 211 | 3>·</span><span·class="nc">cprof</span><span·class="p">:</span><span·class="nf">stop</span><span·class="p"·data-group-id=" | 211 | 3>·</span><span·class="nc">cprof</span><span·class="p">:</span><span·class="nf">stop</span><span·class="p"·data-group-id="2088309172-25">(</span><span·class="p"·data-group-id="2088309172-25">)</span><span·class="p">.</span><span·class="w"> |
| 212 | </span><span·class="mi">8648</span></code></pre><p>The·example·tells·us·that·"Aktiebolaget·LM·Ericsson·&·Co"·was·registered·on·a | 212 | </span><span·class="mi">8648</span></code></pre><p>The·example·tells·us·that·"Aktiebolaget·LM·Ericsson·&·Co"·was·registered·on·a |
| 213 | Monday·(since·the·return·value·of·the·first·command·is·1),·and·that·the | 213 | Monday·(since·the·return·value·of·the·first·command·is·1),·and·that·the |
| 214 | <code·class="inline">calendar</code>·module·needed·9·function·calls·to·calculate·that.</p><p>Using·<code·class="inline">cprof:analyse()</code>·in·this·example·also·shows·approximately·the·same | 214 | <code·class="inline">calendar</code>·module·needed·9·function·calls·to·calculate·that.</p><p>Using·<code·class="inline">cprof:analyse()</code>·in·this·example·also·shows·approximately·the·same |
| 215 | background·work·as·in·the·first·example.</p><h2·id="example-in-the-code"·class="section-heading"> | 215 | background·work·as·in·the·first·example.</p><h2·id="example-in-the-code"·class="section-heading"> |
| 216 | ··<a·href="#example-in-the-code"·class="hover-link"> | 216 | ··<a·href="#example-in-the-code"·class="hover-link"> |
| 217 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 217 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 218 | ··</a> | 218 | ··</a> |
| 219 | ··<span·class="text">Example:·In·the·code</span> | 219 | ··<span·class="text">Example:·In·the·code</span> |
| 220 | </h2> | 220 | </h2> |
| 221 | <p>Write·a·module:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="0604564054-1">(</span><span·class="ss">sort</span><span·class="p"·data-group-id="0604564054-1">)</span><span·class="p">.</span><span·class="w"> | ||
| 222 | < | 221 | <p>Write·a·module:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="0359446472-1">(</span><span·class="ss">sort</span><span·class="p"·data-group-id="0359446472-1">)</span><span·class="p">.</span><span·class="w"> |
| 222 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="0359446472-2">(</span><span·class="p"·data-group-id="0359446472-3">[</span><span·class="ss">do</span><span·class="p">/</span><span·class="mi">1</span><span·class="p"·data-group-id="0359446472-3">]</span><span·class="p"·data-group-id="0359446472-2">)</span><span·class="p">.</span><span·class="w"> | ||
| 223 | </span><span·class="nf">do</span><span·class="p"·data-group-id="0 | 223 | </span><span·class="nf">do</span><span·class="p"·data-group-id="0359446472-4">(</span><span·class="n">N</span><span·class="p"·data-group-id="0359446472-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 224 | ····</span><span·class="nc">cprof</span><span·class="p">:</span><span·class="nf">stop</span><span·class="p"·data-group-id="0 | 224 | ····</span><span·class="nc">cprof</span><span·class="p">:</span><span·class="nf">stop</span><span·class="p"·data-group-id="0359446472-5">(</span><span·class="p"·data-group-id="0359446472-5">)</span><span·class="p">,</span><span·class="w"> |
| 225 | ····</span><span·class="nc">cprof</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id="0 | 225 | ····</span><span·class="nc">cprof</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id="0359446472-6">(</span><span·class="p"·data-group-id="0359446472-6">)</span><span·class="p">,</span><span·class="w"> |
| 226 | ····</span><span·class="nf">do</span><span·class="p"·data-group-id="0 | 226 | ····</span><span·class="nf">do</span><span·class="p"·data-group-id="0359446472-7">(</span><span·class="n">N</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0359446472-8">[</span><span·class="p"·data-group-id="0359446472-8">]</span><span·class="p"·data-group-id="0359446472-7">)</span><span·class="p">.</span><span·class="w"> |
| 227 | </span><span·class="nf">do</span><span·class="p"·data-group-id="0 | 227 | </span><span·class="nf">do</span><span·class="p"·data-group-id="0359446472-9">(</span><span·class="mi">0</span><span·class="p">,</span><span·class="w">·</span><span·class="n">L</span><span·class="p"·data-group-id="0359446472-9">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 228 | ····</span><span·class="n">R</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">sort</span><span·class="p"·data-group-id="0 | 228 | ····</span><span·class="n">R</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">sort</span><span·class="p"·data-group-id="0359446472-10">(</span><span·class="n">L</span><span·class="p"·data-group-id="0359446472-10">)</span><span·class="p">,</span><span·class="w"> |
| 229 | ····</span><span·class="nc">cprof</span><span·class="p">:</span><span·class="nf">pause</span><span·class="p"·data-group-id="0 | 229 | ····</span><span·class="nc">cprof</span><span·class="p">:</span><span·class="nf">pause</span><span·class="p"·data-group-id="0359446472-11">(</span><span·class="p"·data-group-id="0359446472-11">)</span><span·class="p">,</span><span·class="w"> |
| 230 | ····</span><span·class="n">R</span><span·class="p">;</span><span·class="w"> | 230 | ····</span><span·class="n">R</span><span·class="p">;</span><span·class="w"> |
| 231 | </span><span·class="nf">do</span><span·class="p"·data-group-id="0 | 231 | </span><span·class="nf">do</span><span·class="p"·data-group-id="0359446472-12">(</span><span·class="n">N</span><span·class="p">,</span><span·class="w">·</span><span·class="n">L</span><span·class="p"·data-group-id="0359446472-12">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 232 | ····</span><span·class="nf">do</span><span·class="p"·data-group-id="0 | 232 | ····</span><span·class="nf">do</span><span·class="p"·data-group-id="0359446472-13">(</span><span·class="n">N</span><span·class="o">-</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="0359446472-14">[</span><span·class="nc">rand</span><span·class="p">:</span><span·c[·...·truncated·by·diffoscope;·len:·716,·SHA:·78dd8a66999965a722a7d1fe400adc114d8cf4c3ae9eb13853e05a65b85c016f·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 233 | </span><span·class="p"·data-group-id=" | 233 | </span><span·class="p"·data-group-id="8486733961-2">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="ss">sort</span><span·class="p"·data-group-id="8486733961-2">}</span><span·class="gp·unselectable"> |
| 234 | 2>·</span><span·class="nc">rand</span><span·class="p">:</span><span·class="nf">seed</span><span·class="p"·data-group-id=" | 234 | 2>·</span><span·class="nc">rand</span><span·class="p">:</span><span·class="nf">seed</span><span·class="p"·data-group-id="8486733961-3">(</span><span·class="ss">default</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">42</span><span·class="p"·data-group-id="8486733961-3">)</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">ok</span><span·class="p">.</span><span·class="w"> |
| 235 | </span><span·class="ss">ok</span><span·class="p">.</span><span·class="gp·unselectable"> | 235 | </span><span·class="ss">ok</span><span·class="p">.</span><span·class="gp·unselectable"> |
| 236 | 3>·</span><span·class="nc">sort</span><span·class="p">:</span><span·class="nf">do</span><span·class="p"·data-group-id=" | 236 | 3>·</span><span·class="nc">sort</span><span·class="p">:</span><span·class="nf">do</span><span·class="p"·data-group-id="8486733961-4">(</span><span·class="mi">1000</span><span·class="p"·data-group-id="8486733961-4">)</span><span·class="p">.</span><span·class="w"> |
| 237 | </span><span·class="p"·data-group-id=" | 237 | </span><span·class="p"·data-group-id="8486733961-5">[</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">0</span><span·class="p">,</span><span·class="mi">1</span><span·class="p">,</span><span·class="mi">1</span><span·class="[·...·truncated·by·diffoscope;·len:·1300,·SHA:·93aef8b63108a589d0bc1cbdd70a1bf1f0ab9556d120ff2600225df27be1f2e3·...·]-5">]</span><span·class="gp·unselectable"> |
| 238 | 4>·</span><span·class="nc">cprof</span><span·class="p">:</span><span·class="nf">analyse</span><span·class="p"·data-group-id=" | 238 | 4>·</span><span·class="nc">cprof</span><span·class="p">:</span><span·class="nf">analyse</span><span·class="p"·data-group-id="8486733961-6">(</span><span·class="p"·data-group-id="8486733961-6">)</span><span·class="p">.</span><span·class="w"> |
| 239 | </span><span·class="p"·data-group-id=" | 239 | </span><span·class="p"·data-group-id="8486733961-7">{</span><span·class="mi">13180</span><span·class="p">,</span><span·class="w"> |
| 240 | ·</span><span·class="p"·data-group-id=" | 240 | ·</span><span·class="p"·data-group-id="8486733961-8">[</span><span·class="p"·data-group-id="8486733961-9">{</span><span·class="ss">lists</span><span·class="p">,</span><span·class="mi">6173</span><span·class="p">,</span><span·class="w"> |
| 241 | ·········</span><span·class="p"·data-group-id=" | 241 | ·········</span><span·class="p"·data-group-id="8486733961-10">[</span><span·class="p"·data-group-id="8486733961-11">{</span><span·class="p"·data-group-id="8486733961-12">{</span><span·class="ss">lists</span><span·class="p">,</span><span·class="ss">rmerge3_1</span><span·class="p">,</span><span·class="mi[·...·truncated·by·diffoscope;·len:·157,·SHA:·57282ff7db4888cd4e4ba919b012a24e73b3ae7b010da30393f78538b61abb61·...·]-11">}</span><span·class="p">,</span><span·class="w"> |
| 242 | ··········</span><span·class="p"·data-group-id=" | 242 | ··········</span><span·class="p"·data-group-id="8486733961-13">{</span><span·class="p"·data-group-id="8486733961-14">{</span><span·class="ss">lists</span><span·class="p">,</span><span·class="ss">rmerge3_2</span><span·class="p">,</span><span·class="mi">6</span><span·class="p"·data-group-id="8486733961-14[·...·truncated·by·diffoscope;·len:·102,·SHA:·5f6ee7ebe46e20585677f64ce24847e3ac9c7b528381047d7db47eb420a5d052·...·]-13">}</span><span·class="p">,</span><span·class="w"> |
| 243 | ··········</span><span·class="p"·data-group-id=" | 243 | ··········</span><span·class="p"·data-group-id="8486733961-15">{</span><span·class="p"·data-group-id="8486733961-16">{</span><span·class="ss">lists</span><span·class="p">,</span><span·class="ss">split_1</span><span·class="p">,</span><span·class="mi">5</span><span·class="p"·data-group-id="8486733961-16">[·...·truncated·by·diffoscope;·len:·100,·SHA:·5786f8b47b915db8775c065026d9c580c9cef155bee8d1cbe4b7f8c10ed06c13·...·]-15">}</span><span·class="p">,</span><span·class="w"> |
| 244 | ··········</span><span·class="p"·data-group-id=" | 244 | ··········</span><span·class="p"·data-group-id="8486733961-17">{</span><span·class="p"·data-group-id="8486733961-18">{</span><span·class="ss">lists</span><span·class="p">,</span><span·class="ss">merge3_1</span><span·class="p">,</span><span·class="mi">6</span><span·class="p"·data-group-id="8486733961-18"[·...·truncated·by·diffoscope;·len:·101,·SHA:·ba0e723573ff7a51129c3e2e529ca9bdc4d0f269bc1247977a48742f6c6bf9c2·...·]-17">}</span><span·class="p">,</span><span·class="w"> |
| 245 | ··········</span><span·class="p"·data-group-id=" | 245 | ··········</span><span·class="p"·data-group-id="8486733961-19">{</span><span·class="p"·data-group-id="8486733961-20">{</span><span·class="ss">lists</span><span·class="p">,</span><span·class="ss">merge3_2</span><span·class="p">,</span><span·class="mi">6</span><span·class="p"·data-group-id="8486733961-20"[·...·truncated·by·diffoscope;·len:·101,·SHA:·6aaa42abc8d77599be71bf23e71bde15c7da5414aa689400ef673ce73e8e91b6·...·]-19">}</span><span·class="p">,</span><span·class="w"> |
| 246 | ··········</span><span·class="p"·data-group-id=" | 246 | ··········</span><span·class="p"·data-group-id="8486733961-21">{</span><span·class="p"·data-group-id="8486733961-22">{</span><span·class="ss">lists</span><span·class="p">,</span><span·class="ss">rmerge3_12_3</span><span·class="p">,</span><span·class="mi">6</span><span·class="p"·data-group-id="8486733961[·...·truncated·by·diffoscope;·len:·105,·SHA:·d0429ae02cbb54954d6f540f36169c575a51ef4b2c5706c7e4b6f8db655f2107·...·]-21">}</span><span·class="p">,</span><span·class="w"> |
| 247 | ··········</span><span·class="p"·data-group-id=" | 247 | ··········</span><span·class="p"·data-group-id="8486733961-23">{</span><span·class="p"·data-group-id="8486733961-24">{</span><span·class="ss">lists</span><span·class="p">,</span><span·class="ss">split_1_1</span><span·class="p">,</span><span·class="mi">6</span><span·class="p"·data-group-id="8486733961-24[·...·truncated·by·diffoscope;·len:·102,·SHA:·9b973b0b28a4df44936c8371ca4a03eeeb39d69879782b33a089bb6e82c3a3e2·...·]-23">}</span><span·class="p">,</span><span·class="w"> |
| 248 | ··········</span><span·class="p"·data-group-id=" | 248 | ··········</span><span·class="p"·data-group-id="8486733961-25">{</span><span·class="p"·data-group-id="8486733961-26">{</span><span·class="ss">lists</span><span·class="p">,</span><span·class="ss">merge3_12_3</span><span·class="p">,</span><span·class="mi">6</span><span·class="p"·data-group-id="8486733961-[·...·truncated·by·diffoscope;·len:·104,·SHA:·cb93711b50d0c57d815315d22deab9479e2d18325e47e62d93d5b23eb1ba4b9e·...·]-25">}</span><span·class="p">,</span><span·class="w"> |
| 249 | ··········</span><span·class="p"·data-group-id=" | 249 | ··········</span><span·class="p"·data-group-id="8486733961-27">{</span><span·class="p"·data-group-id="8486733961-28">{</span><span·class="ss">lists</span><span·class="p">,</span><span·class="ss">rmerge3_21_3</span><span·class="p">,</span><span·class="mi">6</span><span·class="p"·data-group-id="8486733961[·...·truncated·by·diffoscope;·len:·105,·SHA:·98d0acf94a3150a6ac052acbfea79a31a4c8881f3cab850ca3af9d4318e0e9e3·...·]-27">}</span><span·class="p">,</span><span·class="w"> |
| 250 | ··········</span><span·class="p"·data-group-id=" | 250 | ··········</span><span·class="p"·data-group-id="8486733961-29">{</span><span·class="p"·data-group-id="8486733961-30">{</span><span·class="ss">lists</span><span·class="p">,</span><span·class="ss">merge3_21_3</span><span·class="p">,</span><span·class="mi">6</span><span·class="p"·data-group-id="8486733961-[·...·truncated·by·diffoscope;·len:·104,·SHA:·fba1bd4b348fe8f339253283e4f2e9093a616984748a0893d3e444d3bb58f9e0·...·]-29">}</span><span·class="p">,</span><span·class="w"> |
| 251 | ··········</span><span·class="p"·data-group-id=" | 251 | ··········</span><span·class="p"·data-group-id="8486733961-31">{</span><span·class="p"·data-group-id="8486733961-32">{</span><span·class="ss">lists</span><span·class="p">,</span><span·class="ss">merge2_1</span><span·class="p">,</span><span·class="mi">4</span><span·class="p"·data-group-id="8486733961-32"[·...·truncated·by·diffoscope;·len:·101,·SHA:·cfab09f5c40f841b17d9770ef847d10a2ab8954a2b657761d34e84cc37a00481·...·]-31">}</span><span·class="p">,</span><span·class="w"> |
| 252 | ··········</span><span·class="p"·data-group-id=" | 252 | ··········</span><span·class="p"·data-group-id="8486733961-33">{</span><span·class="p"·data-group-id="8486733961-34">{</span><span·class="ss">lists</span><span·class="p">,</span><span·class="ss">merge2_2</span><span·class="p">,</span><span·class="mi">5</span><span·class="p"·data-group-id="8486733961-34"[·...·truncated·by·diffoscope;·len:·101,·SHA:·a23f74ca14c728e6f1f7cc6811241e663e9a88c441720d3e34bc0e6bc38e4069·...·]-33">}</span><span·class="p">,</span><span·class="w"> |
| 253 | ··········</span><span·class="p"·data-group-id=" | 253 | ··········</span><span·class="p"·data-group-id="8486733961-35">{</span><span·class="p"·data-group-id="8486733961-36">{</span><span·class="ss">lists</span><span·class="p">,</span><span·class="ss">reverse</span><span·class="p">,</span><span·class="mi">2</span><span·class="p"·data-group-id="8486733961-36">[·...·truncated·by·diffoscope;·len:·100,·SHA:·7df5de447b8e572dbc63704350b2a1b7e457b1a6651db27509a56042039dd5d3·...·]-35">}</span><span·class="p">,</span><span·class="w"> |
| 254 | ··········</span><span·class="p"·data-group-id=" | 254 | ··········</span><span·class="p"·data-group-id="8486733961-37">{</span><span·class="p"·data-group-id="8486733961-38">{</span><span·class="ss">lists</span><span·class="p">,</span><span·class="ss">rmerge2_2</span><span·class="p">,</span><span·class="mi">5</span><span·class="p"·data-group-id="8486733961-38[·...·truncated·by·diffoscope;·len:·101,·SHA:·55c1483296a3a52308920828dcad6d6211220ba6f65afb7ccc57dea6efbee421·...·]-37">}</span><span·class="p">,</span><span·class="w"> |
| 255 | ··········</span><span·class="p"·data-group-id=" | 255 | ··········</span><span·class="p"·data-group-id="8486733961-39">{</span><span·class="p"·data-group-id="8486733961-40">{</span><span·class="ss">lists</span><span·class="p">,</span><span·class="ss">rmergel</span><span·class="p">,</span><span·class="mi">2</span><span·class="p"·data-group-id="8486733961-40">[·...·truncated·by·diffoscope;·len:·99,·SHA:·082a48bba6b88f8d9adbaa6bcda58b99a1c6f77a5cc3a31efa13600193dfe3aa·...·]-39">}</span><span·class="p">,</span><span·class="w"> |
| 256 | ··········</span><span·class="p"·data-group-id=" | 256 | ··········</span><span·class="p"·data-group-id="8486733961-41">{</span><span·class="p"·data-group-id="8486733961-42">{</span><span·class="ss">lists</span><span·class="p">,</span><span·class="ss">rmerge2_1</span><span·class="p">,</span><span·class="mi">4</span><span·class="p"·data-group-id="8486733961-42[·...·truncated·by·diffoscope;·len:·101,·SHA:·db0f761f2c94bc977fcc96edc65c1eee67dc82b5826517e6b0a3cb9d1b596aea·...·]-41">}</span><span·class="p">,</span><span·class="w"> |
| 257 | ··········</span><span·class="p"·data-group-id=" | 257 | ··········</span><span·class="p"·data-group-id="8486733961-43">{</span><span·class="p"·data-group-id="8486733961-44">{</span><span·class="ss">lists</span><span·class="p">,</span><span·class="ss">mergel</span><span·class="p">,</span><span·class="mi">2</span><span·class="p"·data-group-id="8486733961-44">}[·...·truncated·by·diffoscope;·len:·98,·SHA:·de8c653b3a1dbbdf847b0f21053ac8c05b64334e63e68b7aa5f44154471b7dbb·...·]-43">}</span><span·class="p">,</span><span·class="w"> |
| 258 | ··········</span><span·class="p"·data-group-id=" | 258 | ··········</span><span·class="p"·data-group-id="8486733961-45">{</span><span·class="p"·data-group-id="8486733961-46">{</span><span·class="ss">lists</span><span·class="p">,</span><span·class="ss">keyfind</span><span·class="p">,</span><span·class="mi">3</span><span·class="p"·data-group-id="8486733961-46">[·...·truncated·by·diffoscope;·len:·98,·SHA:·5dec28b1ac545368ec628d1ec8737e2bcca524bd3f19963bfd2712d2f0927ee4·...·]-45">}</span><span·class="p">,</span><span·class="w"> |
| 259 | ··········</span><span·class="p"·data-group-id=" | 259 | ··········</span><span·class="p"·data-group-id="8486733961-47">{</span><span·class="p"·data-group-id="8486733961-48">{</span><span·class="ss">lists</span><span·class="p">,</span><span·class="ss">sort</span><span·class="p">,</span><span·class="mi">1</span><span·class="p"·data-group-id="8486733961-48">}</[·...·truncated·by·diffoscope;·len:·203,·SHA:·1b814792857917f8cec528fe857c1b60f918f32ab7e4a440b49118575581b39e·...·]-9">}</span><span·class="p">,</span><span·class="w"> |
| 260 | ··</span><span·class="p"·data-group-id=" | 260 | ··</span><span·class="p"·data-group-id="8486733961-49">{</span><span·class="ss">rand</span><span·class="p">,</span><span·class="mi">5000</span><span·class="p">,</span><span·class="w"> |
| 261 | ········</span><span·class="p"·data-group-id=" | 261 | ········</span><span·class="p"·data-group-id="8486733961-50">[</span><span·class="p"·data-group-id="8486733961-51">{</span><span·class="p"·data-group-id="8486733961-52">{</span><span·class="ss">rand</span><span·class="p">,</span><span·class="ss">uniform_s</span><span·class="p">,</span><span·class="mi"[·...·truncated·by·diffoscope;·len:·156,·SHA:·1083cc859c770ceba43b05874fea40ae0b8e64a9784c8e1021a4418f47338db8·...·]-51">}</span><span·class="p">,</span><span·class="w"> |
| 262 | ·········</span><span·class="p"·data-group-id=" | 262 | ·········</span><span·class="p"·data-group-id="8486733961-53">{</span><span·class="p"·data-group-id="8486733961-54">{</span><span·class="ss">rand</span><span·class="p">,</span><span·class="ss">uniform</span><span·class="p">,</span><span·class="mi">1</span><span·class="p"·data-group-id="8486733961-54">}[·...·truncated·by·diffoscope;·len:·100,·SHA:·e3ce7dfbed6d2ac00314318d8e38cd27a1b6b1acf7e02ca254205948d60d2579·...·]-53">}</span><span·class="p">,</span><span·class="w"> |
| 263 | ·········</span><span·class="p"·data-group-id=" | 263 | ·········</span><span·class="p"·data-group-id="8486733961-55">{</span><span·class="p"·data-group-id="8486733961-56">{</span><span·class="ss">rand</span><span·class="p">,</span><span·class="ss">seed_put</span><span·class="p">,</span><span·class="mi">1</span><span·class="p"·data-group-id="8486733961-56">[·...·truncated·by·diffoscope;·len:·101,·SHA:·cf5b06eaeafad54835dc81fd4b115065bf568d874a10c6be1084ad7fc334f7b8·...·]-55">}</span><span·class="p">,</span><span·class="w"> |
| 264 | ·········</span><span·class="p"·data-group-id=" | 264 | ·········</span><span·class="p"·data-group-id="8486733961-57">{</span><span·class="p"·data-group-id="8486733961-58">{</span><span·class="ss">rand</span><span·class="p">,</span><span·class="ss">seed_get</span><span·class="p">,</span><span·class="mi">0</span><span·class="p"·data-group-id="8486733961-58">[·...·truncated·by·diffoscope;·len:·101,·SHA:·cf5b06eaeafad54835dc81fd4b115065bf568d874a10c6be1084ad7fc334f7b8·...·]-57">}</span><span·class="p">,</span><span·class="w"> |
| 265 | ·········</span><span·class="p"·data-group-id=" | 265 | ·········</span><span·class="p"·data-group-id="8486733961-59">{</span><span·class="p"·data-group-id="8486733961-60">{</span><span·class="ss">rand</span><span·class="p">,</span><span·class="ss">exsss_uniform</span><span·class="p">,</span><span·class="mi">2</span><span·class="p"·data-group-id="8486733961[·...·truncated·by·diffoscope;·len:·214,·SHA:·83862e29b94cad9f24e6706aa31312a1ad2dc5a0f91a134cbc111305d0e887b9·...·]-49">}</span><span·class="p">,</span><span·class="w"> |
| 266 | ··</span><span·class="p"·data-group-id=" | 266 | ··</span><span·class="p"·data-group-id="8486733961-61">{</span><span·class="ss">erlang</span><span·class="p">,</span><span·class="mi">1004</span><span·class="p">,</span><span·class="w"> |
| 267 | ··········</span><span·class="p"·data-group-id=" | 267 | ··········</span><span·class="p"·data-group-id="8486733961-62">[</span><span·class="p"·data-group-id="8486733961-63">{</span><span·class="p"·data-group-id="8486733961-64">{</span><span·class="ss">erlang</span><span·class="p">,</span><span·class="nb">put</span><span·class="p">,</span><span·class="mi">2</[·...·truncated·by·diffoscope;·len:·152,·SHA:·71cb9cf3a18d6cfb89f6bd07447f640b8e49cf1de8f537cfc1c4f8afd3e114e1·...·]-63">}</span><span·class="p">,</span><span·class="w"> |
| 268 | ···········</span><span·class="p"·data-group-id=" | 268 | ···········</span><span·class="p"·data-group-id="8486733961-65">{</span><span·class="p"·data-group-id="8486733961-66">{</span><span·class="ss">erlang</span><span·class="p">,</span><span·class="nb">trace_pattern</span><span·class="p">,</span><span·class="mi">3</span><span·class="p"·data-group-id="84867339[·...·truncated·by·diffoscope;·len:·105,·SHA:·826fb282b102726debbf8ff7955e0d978c34cfce286cc0d6f9e77a3a9f15f10c·...·]-65">}</span><span·class="p">,</span><span·class="w"> |
| 269 | ···········</span><span·class="p"·data-group-id="1461647183-67">{</span><span·class="p"·data-group-id="1461647183-68">{</span><span·class="ss">erlang</span><span·class="p">,</span><span·class="ss">ensure_tracer_module_loaded</span><span·class="p">,</span><span·class="mi">2</span><span·class="p"·data-group-id="1461647183-68">}</span><span·class="p">,</span><span·class="mi">2</span><span·class="p"·data-group-id="1461647183-67">}</span><span·class="p"·data-group-id="1461647183-62">]</span><span·class="p"·data-group-id="1461647183-61">}</span><span·class="p">,</span><span·class="w"> | ||
| 270 | ··</span><span·class="p"·data-group-id=" | 269 | ···········</span><span·class="p"·data-group-id="8486733961-67">{</span><span·class="p"·data-group-id="8486733961-68">{</span><span·class="ss">erlang</span><span·class="p">,</span><span·class="ss">ensure_tracer_module_loaded</span><span·class="p">,</span><sp[·...·truncated·by·diffoscope;·len:·277,·SHA:·e3305020be313af60ee148f5bff56d8152069bcc711b3797528ff7dde1a591af·...·]">}</span><span·class="p">,</span><span·class="w"> |
| 270 | ··</span><span·class="p"·data-group-id="8486733961-69">{</span><span·class="ss">sort</span><span·class="p">,</span><span·class="mi">1001</span><span·class="p">,</span><span·class="p"·data-group-id="8486733961-70">[</span><span·class="p"·data-group-id="8486733961-71">{</span><span·class="p"·data-group-id="8486733961-72">{</span><span·class="ss">sort</span><span·class="p">,</span><span·class="ss">do</span><span·class="p">,</span><span·class="mi">2</span><span·class="p"·data-group-id="8486733961-72">}</span><span·class="p">,</span><span·class="mi">1001</span><span·class="p"·data-group-id="8486733961-71">}</span><span·class="p"·data-group-id="8486733961-70">]</span><span·class="p"·data-group-id="8486733961-69">}</span><span·class="p">,</span><span·class="w"> | ||
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| Offset 971, 15 lines modified | Offset 971, 15 lines modified | ||
| 971 | ······<p·class="built-using"> | 971 | ······<p·class="built-using"> |
| 972 | ········Built·using | 972 | ········Built·using |
| 973 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 973 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 974 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 974 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 975 | ······</p> | 975 | ······</p> |
| 976 | <p>Copyright·©·1996-202 | 976 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 977 | ····</footer> | 977 | ····</footer> |
| 978 | ··</div> | 978 | ··</div> |
| 979 | </main> | 979 | </main> |
| 980 | </div> | 980 | </div> |
| 981 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 981 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 982 | ··<script> | 982 | ··<script> |
| 983 | ··let·initialized·=·false; | 983 | ··let·initialized·=·false; |
| Offset 207, 31 lines modified | Offset 207, 31 lines modified | ||
| 207 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 207 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 208 | ··</a> | 208 | ··</a> |
| 209 | ··<span·class="text">Edit·-·Alignment</span> | 209 | ··<span·class="text">Edit·-·Alignment</span> |
| 210 | </h2> | 210 | </h2> |
| 211 | <ul><li>··<em><code·class="inline">C-c·C-a</code></em>·(<code·class="inline">align-current</code>)·-·aligns·comments,·arrows,·assignments, | 211 | <ul><li>··<em><code·class="inline">C-c·C-a</code></em>·(<code·class="inline">align-current</code>)·-·aligns·comments,·arrows,·assignments, |
| 212 | and·type·annotations·around·the·cursor.</li></ul><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Example</span><span·class="p">:</span><span·class="w"> | 212 | and·type·annotations·around·the·cursor.</li></ul><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Example</span><span·class="p">:</span><span·class="w"> |
| 213 | </span><span·class="nf">sum</span><span·class="p"·data-group-id=" | 213 | </span><span·class="nf">sum</span><span·class="p"·data-group-id="7157200020-1">(</span><span·class="n">L</span><span·class="p"·data-group-id="7157200020-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="nf">sum</span><span·class="p"·data-group-id="7157200020-2">(</span><[·...·truncated·by·diffoscope;·len:·137,·SHA:·0a674f58643551beb50ae9191b6261dd3f5a7faff9e85fdea024b6d9dd3471be·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 214 | </span><span·class="nf">sum</span><span·class="p"·data-group-id=" | 214 | </span><span·class="nf">sum</span><span·class="p"·data-group-id="7157200020-3">(</span><span·class="p"·data-group-id="7157200020-4">[</span><span·class="n">H</span><span·class="p">|</span><span·class="n">T</span><span·class="p"·data-group-id="7157200020-4">]</span><span·class="p">,</span><span·class="w">·</span><span·cl[·...·truncated·by·diffoscope;·len:·462,·SHA:·64a7f0336ac12f830a939deedd3055fbde56d2d64e0a6a754f61c437265fb1ad·...·]-5">)</span><span·class="p">;</span><span·class="w">··</span><span·class="c1">%·recurse</span><span·class="w"> |
| 215 | </span><span·class="nf">sum</span><span·class="p"·data-group-id=" | 215 | </span><span·class="nf">sum</span><span·class="p"·data-group-id="7157200020-6">(</span><span·class="p"·data-group-id="7157200020-7">[</span><span·class="p"·data-group-id="7157200020-7">]</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Sum</span><span·class="p"·data-group-id="7157200020-6">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">Sum</span><span·class="p">.</span><span·class="w">···</span><span·class="c1">%·base·case</span><span·class="w"> |
| 216 | </span><span·class="w"> | 216 | </span><span·class="w"> |
| 217 | </span><span·class="p">-</span><span·class="na">record</span><span·class="w">·</span><span·class="p"·data-group-id=" | 217 | </span><span·class="p">-</span><span·class="na">record</span><span·class="w">·</span><span·class="p"·data-group-id="7157200020-8">{</span><span·class="w">·</span><span·class="ss">two</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">int</span><span·class="p"·data-group-id="7157200020-9">(</span><span·c[·...·truncated·by·diffoscope;·len:·34,·SHA:·11298706aff5e1cdd7289dd6d0736690e407ca905bd09b3d0494a9b76415e269·...·]-9">)</span><span·class="p">,</span><span·class="w">·</span><span·class="c1">%·hello</span><span·class="w"> |
| 218 | ··········</span><span·class="ss">three</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">hello</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">string</span><span·class="p"·data-group-id=" | 218 | ··········</span><span·class="ss">three</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">hello</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">string</span><span·class="p"·data-group-id="7157200020-10">(</span><span·class="p"·data-group-id="7157200020-10">)</span><span·class="p">,</span><span·class="w">····</span><span·class="c1">%·there</span><span·class="w"> |
| 219 | ··········</span><span·class="ss">four</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">42</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">int</span><span·class="p"·data-group-id=" | 219 | ··········</span><span·class="ss">four</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">42</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">int</span><span·class="p"·data-group-id="7157200020-11">(</span><span·class="p"·data-group-id="7157200020-11">)</span><span·class="w">·</span><span·class="p"·data-group-id="7157200020-8">}</span><span·class="p">.</span><span·class="w"> |
| 220 | </span><span·class="nc">becomes</span><span·class="p">:</span><span·class="w"> | 220 | </span><span·class="nc">becomes</span><span·class="p">:</span><span·class="w"> |
| 221 | </span><span·class="nf">sum</span><span·class="p"·data-group-id=" | 221 | </span><span·class="nf">sum</span><span·class="p"·data-group-id="7157200020-12">(</span><span·class="n">L</span><span·class="p"·data-group-id="7157200020-12">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="nf">sum</span><span·class="p"·data-group-id="7157200020-13">(</spa[·...·truncated·by·diffoscope;·len:·140,·SHA:·5ad5f85d6246630f074c34bfa1795d68c61eeee47dd946d3f1003c90f79d13f6·...·]-13">)</span><span·class="p">.</span><span·class="w"> |
| 222 | </span><span·class="nf">sum</span><span·class="p"·data-group-id=" | 222 | </span><span·class="nf">sum</span><span·class="p"·data-group-id="7157200020-14">(</span><span·class="p"·data-group-id="7157200020-15">[</span><span·class="n">H</span><span·class="p">|</span><span·class="n">T</span><span·class="p"·data-group-id="7157200020-15">]</span><span·class="p">,</span><span·class="w">·</span><span[·...·truncated·by·diffoscope;·len:·467,·SHA:·86a7057866376d3d7460e9934d98e0f46a6049cec110d6677a9787125ae72ff6·...·]-16">)</span><span·class="p">;</span><span·class="w">·</span><span·class="c1">%·recurse</span><span·class="w"> |
| 223 | </span><span·class="nf">sum</span><span·class="p"·data-group-id=" | 223 | </span><span·class="nf">sum</span><span·class="p"·data-group-id="7157200020-17">(</span><span·class="p"·data-group-id="7157200020-18">[</span><span·class="p"·data-group-id="7157200020-18">]</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Sum</span><span·class="p"·data-group-id="7157200020-17">)</span><span·class="w">····</span><span·class="p">-></span><span·class="w">·</span><span·class="n">Sum</span><span·class="p">.</span><span·class="w">·············</span><span·class="c1">%·base·case</span><span·class="w"> |
| 224 | </span><span·class="w"> | 224 | </span><span·class="w"> |
| 225 | </span><span·class="p">-</span><span·class="na">record</span><span·class="w">·</span><span·class="p"·data-group-id=" | 225 | </span><span·class="p">-</span><span·class="na">record</span><span·class="w">·</span><span·class="p"·data-group-id="7157200020-19">{</span><span·class="w">·</span><span·class="ss">two</span><span·class="w">···········</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">int</span><span·class="p"·data-group-id="7157200020-20">(</[·...·truncated·by·diffoscope;·len:·46,·SHA:·fe84a76c4adf2a2bfaf75f7a26a5ea1c4f96bfd4c982908c61b6991622de3659·...·]-20">)</span><span·class="p">,</span><span·class="w">····</span><span·class="c1">%·hello</span><span·class="w"> |
| 226 | ··········</span><span·class="ss">three</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">hello</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">string</span><span·class="p"·data-group-id=" | 226 | ··········</span><span·class="ss">three</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">hello</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">string</span><span·class="p"·data-group-id="7157200020-21">(</span><span·class="p"·data-group-id="7157200020-21">)</span><span·class="p">,</span><span·class="w">·</span><span·class="c1">%·there</span><span·class="w"> |
| 227 | ··········</span><span·class="ss">four</span><span·class="w">··</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">42</span><span·class="w">····</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">int</span><span·class="p"·data-group-id=" | 227 | ··········</span><span·class="ss">four</span><span·class="w">··</span><span·class="o">=</span><span·class="w">·</span><span·class="mi">42</span><span·class="w">····</span><span·class="p">:</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">int</span><span·class="p"·data-group-id="7157200020-22">(</span><span·class="p"·data-group-id="7157200020-22">)</span><span·class="w">·</span><span·class="p"·data-group-id="7157200020-19">}</span><span·class="p">.</span></code></pre><h2·id="syntax-highlighting"·class="section-heading"> |
| 228 | ··<a·href="#syntax-highlighting"·class="hover-link"> | 228 | ··<a·href="#syntax-highlighting"·class="hover-link"> |
| 229 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 229 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 230 | ··</a> | 230 | ··</a> |
| 231 | ··<span·class="text">Syntax·highlighting</span> | 231 | ··<span·class="text">Syntax·highlighting</span> |
| 232 | </h2> | 232 | </h2> |
| 233 | <p>The·syntax·highlighting·can·be·activated·from·the·Erlang·menu.·There·are·four | 233 | <p>The·syntax·highlighting·can·be·activated·from·the·Erlang·menu.·There·are·four |
| 234 | different·alternatives:</p><ul><li>··Off:·Normal·black·and·white·display.</li><li>··Level·1:·Function·headers,·reserved·words,·comments,·strings,·quoted·atoms, | 234 | different·alternatives:</p><ul><li>··Off:·Normal·black·and·white·display.</li><li>··Level·1:·Function·headers,·reserved·words,·comments,·strings,·quoted·atoms, |
| Offset 351, 15 lines modified | Offset 351, 15 lines modified | ||
| 351 | ······<p·class="built-using"> | 351 | ······<p·class="built-using"> |
| 352 | ········Built·using | 352 | ········Built·using |
| 353 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 353 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 354 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 354 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 355 | ······</p> | 355 | ······</p> |
| 356 | <p>Copyright·©·1996-202 | 356 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 357 | ····</footer> | 357 | ····</footer> |
| 358 | ··</div> | 358 | ··</div> |
| 359 | </main> | 359 | </main> |
| 360 | </div> | 360 | </div> |
| 361 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 361 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 362 | ··<script> | 362 | ··<script> |
| 363 | ··let·initialized·=·false; | 363 | ··let·initialized·=·false; |
| Offset 327, 15 lines modified | Offset 327, 15 lines modified | ||
| 327 | ······<p·class="built-using"> | 327 | ······<p·class="built-using"> |
| 328 | ········Built·using | 328 | ········Built·using |
| 329 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 329 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 330 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 330 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 331 | ······</p> | 331 | ······</p> |
| 332 | <p>Copyright·©·1996-202 | 332 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 333 | ····</footer> | 333 | ····</footer> |
| 334 | ··</div> | 334 | ··</div> |
| 335 | </main> | 335 | </main> |
| 336 | </div> | 336 | </div> |
| 337 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 337 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 338 | ··<script> | 338 | ··<script> |
| 339 | ··let·initialized·=·false; | 339 | ··let·initialized·=·false; |
| Offset 171, 69 lines modified | Offset 171, 69 lines modified | ||
| 171 | </h2> | 171 | </h2> |
| 172 | <p>This·section·describes·the·output·format·of·the·<a·href="#analyse/1"><code·class="inline">analyse/1</code></a>·function.</p><p>The·format·is·parsable·with·the·standard·Erlang·parsing·tools | 172 | <p>This·section·describes·the·output·format·of·the·<a·href="#analyse/1"><code·class="inline">analyse/1</code></a>·function.</p><p>The·format·is·parsable·with·the·standard·Erlang·parsing·tools |
| 173 | <a·href="../../../../lib/stdlib-7.0/doc/html/erl_scan.html"><code·class="inline">erl_scan</code></a>·and·<a·href="../../../../lib/stdlib-7.0/doc/html/erl_parse.html"><code·class="inline">erl_parse</code></a>,·<a·href="../../../../lib/kernel-10.3/doc/html/file.html#consult/1"><code·class="inline">file:consult/1</code></a>,·or·<a·href="../../../../lib/stdlib-7.0/doc/html/io.html#read/2"><code·class="inline">io:read/2</code></a>.·The | 173 | <a·href="../../../../lib/stdlib-7.0/doc/html/erl_scan.html"><code·class="inline">erl_scan</code></a>·and·<a·href="../../../../lib/stdlib-7.0/doc/html/erl_parse.html"><code·class="inline">erl_parse</code></a>,·<a·href="../../../../lib/kernel-10.3/doc/html/file.html#consult/1"><code·class="inline">file:consult/1</code></a>,·or·<a·href="../../../../lib/stdlib-7.0/doc/html/io.html#read/2"><code·class="inline">io:read/2</code></a>.·The |
| 174 | parse·format·is·not·described·here·—·it·should·be·easy·enough·for·the | 174 | parse·format·is·not·described·here·—·it·should·be·easy·enough·for·the |
| 175 | interested·reader·to·try·it·out.·Note·that·some·flags·to | 175 | interested·reader·to·try·it·out.·Note·that·some·flags·to |
| 176 | <a·href="#analyse/1"><code·class="inline">analyse/1</code></a>·will·affect·the·format.</p><p>The·following·example·was·run·on·Erlang/OTP·R8·on·Solaris·8;·all·OTP | 176 | <a·href="#analyse/1"><code·class="inline">analyse/1</code></a>·will·affect·the·format.</p><p>The·following·example·was·run·on·Erlang/OTP·R8·on·Solaris·8;·all·OTP |
| 177 | internals·in·this·example·are·version·dependent.</p><p>As·an·example,·we·will·use·the·following·function,·which·is·a | 177 | internals·in·this·example·are·version·dependent.</p><p>As·an·example,·we·will·use·the·following·function,·which·is·a |
| 178 | slightly·modified·benchmark·function·from·module·<a·href="../../../../lib/kernel-10.3/doc/html/file.html"><code·class="inline">file</code></a>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="2 | 178 | slightly·modified·benchmark·function·from·module·<a·href="../../../../lib/kernel-10.3/doc/html/file.html"><code·class="inline">file</code></a>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="2915503300-1">(</span><span·class="ss">foo</span><span·class="p"·data-group-id="2915503300-1">)</span><span·class="p">.</span><span·class="w"> |
| 179 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="2 | 179 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="2915503300-2">(</span><span·class="p"·data-group-id="2915503300-3">[</span><span·class="ss">create_file_slow</span><span·class="p">/</span><span·class="mi">2</span><span·class="p"·data-group-id="2915503300-3">]</span><span·class="p"·data-group-id="291550330[·...·truncated·by·diffoscope;·len:·1,·SHA:·5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 180 | </span><span·class="nf">create_file_slow</span><span·class="p"·data-group-id="2 | 180 | </span><span·class="nf">create_file_slow</span><span·class="p"·data-group-id="2915503300-4">(</span><span·class="n">Name</span><span·class="p">,</span><span·class="w">·</span><span·class="n">N</span><span·class="p"·data-group-id="2915503300-4">)</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><span·cl[·...·truncated·by·diffoscope;·len:·144,·SHA:·cf8fec3e9664e6d288abe0f847b5162e3f8560945a4594b8aa3549b8dbb49147·...·]-5">)</span><span·class="p">,</span><span·class="w">·</span><span·class="n">N</span><span·class="w">·</span><span·class="o">>=</span><span·class="w">·</span><span·class="mi">0</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 181 | ····</span><span·class="p"·data-group-id="2 | 181 | ····</span><span·class="p"·data-group-id="2915503300-6">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">FD</span><span·class="p"·data-group-id="2915503300-6">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w"> |
| 182 | ········</span><span·class="nc">file</span><span·class="p">:</span><span·class="nf">open</span><span·class="p"·data-group-id="2 | 182 | ········</span><span·class="nc">file</span><span·class="p">:</span><span·class="nf">open</span><span·class="p"·data-group-id="2915503300-7">(</span><span·class="n">Name</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2915503300-8">[</span><span·class="ss">raw</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">write</span><sp[·...·truncated·by·diffoscope;·len:·254,·SHA:·8f37ee9a1e93e75d2ce363f4427992275da35989994841ce5bbb214f726385bd·...·]-7">)</span><span·class="p">,</span><span·class="w"> |
| 183 | ····</span><span·class="k">if</span><span·class="w">·</span><span·class="n">N</span><span·class="w">·</span><span·class="o">></span><span·class="w">·</span><span·class="mi">256</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 183 | ····</span><span·class="k">if</span><span·class="w">·</span><span·class="n">N</span><span·class="w">·</span><span·class="o">></span><span·class="w">·</span><span·class="mi">256</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 184 | ············</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">file</span><span·class="p">:</span><span·class="nf">write</span><span·class="p"·data-group-id="2 | 184 | ············</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">file</span><span·class="p">:</span><span·class="nf">write</span><span·class="p"·data-group-id="2915503300-9">(</span><span·class="n">FD</span><span·class="p">,</span><span·class="w"> |
| 185 | ····························</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">map</span><span·class="p"·data-group-id="2 | 185 | ····························</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">map</span><span·class="p"·data-group-id="2915503300-10">(</span><span·class="nf">fun</span><span·class="w">·</span><span·class="p"·data-group-id="2915503300-11">(</span><span·class="n">X</span><span·class="p"·data-group-id="2915503300-11">)</span><span·class="w">·</span><span·class="p">-></span[·...·truncated·by·diffoscope;·len:·257,·SHA:·c46dc461f3d5161958eeecb3b139ae4f212581640be3e8601ff101d425f34299·...·]-12">>></span><span·class="w">·</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> |
| 186 | ····························</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">seq</span><span·class="p"·data-group-id="2 | 186 | ····························</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">seq</span><span·class="p"·data-group-id="2915503300-13">(</span><span·class="mi">0</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">255</span><span·class="p"·data-group-id="2915503300-13">)</span><span·class="p"·data-group-id="2915503300-10">)</span><span·class="p"·data-group[·...·truncated·by·diffoscope;·len:·15,·SHA:·4898a76daae9511c660e65cbe342c022f534a726da9f4afb45ff802b60ce187a·...·]-9">)</span><span·class="p">,</span><span·class="w"> |
| 187 | ············</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">create_file_slow</span><span·class="p"·data-group-id="2 | 187 | ············</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">create_file_slow</span><span·class="p"·data-group-id="2915503300-14">(</span><span·class="n">FD</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">256</span><span·class="p">,</span><span·class="w">·</span><span·class="n">N</span><span·class="p"·data-group-id="2915503300-14">)</span><span·class="p">;</span><span·class="w"> |
| 188 | ·······</span><span·class="ss">true</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 188 | ·······</span><span·class="ss">true</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 189 | ············</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">create_file_slow</span><span·class="p"·data-group-id="2 | 189 | ············</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">create_file_slow</span><span·class="p"·data-group-id="2915503300-15">(</span><span·class="n">FD</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">0</span><span·class="p">,</span><span·class="w">·</span><span·class="n">N</span><span·class="p"·data-group-id="2915503300-15">)</span><span·class="w"> |
| 190 | ····</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> | 190 | ····</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> |
| 191 | ····</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">file</span><span·class="p">:</span><span·class="nf">close</span><span·class="p"·data-group-id="2 | 191 | ····</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">file</span><span·class="p">:</span><span·class="nf">close</span><span·class="p"·data-group-id="2915503300-16">(</span><span·class="n">FD</span><span·class="p"·data-group-id="2915503300-16">)</span><span·class="p">.</span><span·class="w"> |
| 192 | </span><span·class="nf">create_file_slow</span><span·class="p"·data-group-id="2 | 192 | </span><span·class="nf">create_file_slow</span><span·class="p"·data-group-id="2915503300-17">(</span><span·class="n">FD</span><span·class="p">,</span><span·class="w">·</span><span·class="n">M</span><span·class="p">,</span><span·class="w">·</span><span·class="n">M</span><span·class="p"·data-group-id="2915503300-17">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 193 | ····</span><span·class="ss">ok</span><span·class="p">;</span><span·class="w"> | 193 | ····</span><span·class="ss">ok</span><span·class="p">;</span><span·class="w"> |
| 194 | </span><span·class="nf">create_file_slow</span><span·class="p"·data-group-id="2 | 194 | </span><span·class="nf">create_file_slow</span><span·class="p"·data-group-id="2915503300-18">(</span><span·class="n">FD</span><span·class="p">,</span><span·class="w">·</span><span·class="n">M</span><span·class="p">,</span><span·class="w">·</span><span·class="n">N</span><span·class="p"·data-group-id="2915503300-18">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 195 | ····</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">file</span><span·class="p">:</span><span·class="nf">write</span><span·class="p"·data-group-id="2 | 195 | ····</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">file</span><span·class="p">:</span><span·class="nf">write</span><span·class="p"·data-group-id="2915503300-19">(</span><span·class="n">FD</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2915503300-20"><<</span><span·class="n">M</span><span·class="p">:</span><span·class="mi">32</span><span·class="o">/</span><s[·...·truncated·by·diffoscope;·len:·132,·SHA:·512d8b6b71906e0f1c50530dbe42a1e7151475b8bd6463408f67c27f496d8159·...·]-19">)</span><span·class="p">,</span><span·class="w"> |
| 196 | ····</span><span·class="nf">create_file_slow</span><span·class="p"·data-group-id="2 | 196 | ····</span><span·class="nf">create_file_slow</span><span·class="p"·data-group-id="2915503300-21">(</span><span·class="n">FD</span><span·class="p">,</span><span·class="w">·</span><span·class="n">M</span><span·class="o">+</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="n">N</span><span·class="p"·[·...·truncated·by·diffoscope;·len:·771,·SHA:·1e5f3300e3d451eb21403da3c0b9ca65ce1ecad7b70e7321fa34c04c6f48f9a7·...·]-1">)</span><span·class="p">.</span><span·class="gp·unselectable"> |
| 197 | 2>·</span><span·class="nc">fprof</span><span·class="p">:</span><span·class="nf">profile</span><span·class="p"·data-group-id=" | 197 | 2>·</span><span·class="nc">fprof</span><span·class="p">:</span><span·class="nf">profile</span><span·class="p"·data-group-id="9719692298-3">(</span><span·class="p"·data-group-id="9719692298-3">)</span><span·class="p">.</span><span·class="gp·unselectable"> |
| 198 | 3>·</span><span·class="nc">fprof</span><span·class="p">:</span><span·class="nf">analyse</span><span·class="p"·data-group-id=" | 198 | 3>·</span><span·class="nc">fprof</span><span·class="p">:</span><span·class="nf">analyse</span><span·class="p"·data-group-id="9719692298-4">(</span><span·class="p"·data-group-id="9719692298-4">)</span><span·class="p">.</span></code></pre><p>The·printout·starts·with:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%%·Analysis·results:</span><span·class="w"> |
| 199 | </span><span·class="p"·data-group-id="5 | 199 | </span><span·class="p"·data-group-id="5330456063-1">{</span><span·class="w">··</span><span·class="ss">analysis_options</span><span·class="p">,</span><span·class="w"> |
| 200 | ·</span><span·class="p"·data-group-id="5 | 200 | ·</span><span·class="p"·data-group-id="5330456063-2">[</span><span·class="p"·data-group-id="5330456063-3">{</span><span·class="ss">callers</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">true</span><span·class="p"·data-group-id="5330456063-3">}</span><span·class="p">,</span><span·class="w"> |
| 201 | ··</span><span·class="p"·data-group-id="5 | 201 | ··</span><span·class="p"·data-group-id="5330456063-4">{</span><span·class="ss">sort</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">acc</span><span·class="p"·data-group-id="5330456063-4">}</span><span·class="p">,</span><span·class="w"> |
| 202 | ··</span><span·class="p"·data-group-id="5 | 202 | ··</span><span·class="p"·data-group-id="5330456063-5">{</span><span·class="ss">totals</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">false</span><span·class="p"·data-group-id="5330456063-5">}</span><span·class="p">,</span><span·class="w"> |
| 203 | ··</span><span·class="p"·data-group-id="5 | 203 | ··</span><span·class="p"·data-group-id="5330456063-6">{</span><span·class="ss">details</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">true</span><span·class="p"·data-group-id="5330456063-6">}</span><span·class="p"·data-group-id="5330456063-2">]</span><span·class="p"·data-g[·...·truncated·by·diffoscope;·len:·19,·SHA:·2191386f4d762454a4570989bf91b23ea88e23fe73f0e387375b34c3fb498cc5·...·]-1">}</span><span·class="p">.</span><span·class="w"> |
| 204 | </span><span·class="c1">%·······································CNT·······ACC·······OWN</span><span·class="w"> | 204 | </span><span·class="c1">%·······································CNT·······ACC·······OWN</span><span·class="w"> |
| 205 | </span><span·class="p"·data-group-id="5 | 205 | </span><span·class="p"·data-group-id="5330456063-7">[</span><span·class="p"·data-group-id="5330456063-8">{</span><span·class="w">·</span><span·class="ss">totals</span><span·class="p">,</span><span·class="w">·····························</span><span·class="mi">9627</span><span·class="p">,</span>[·...·truncated·by·diffoscope;·len:·230,·SHA:·eb32b00440f54fef003a813a56f4f7f2a25f754807dad41f8ccf8f5fb5f95056·...·]-7">]</span><span·class="p">.</span><span·class="w">··</span><span·class="c1">%%%</span></code></pre><p>The·<code·class="inline">CNT</code>·column·shows·the·total·number·of·function·calls·that·was·found·in·the |
| 206 | trace.·In·the·<code·class="inline">ACC</code>·column·is·the·total·time·of·the·trace·from·first·timestamp·to | 206 | trace.·In·the·<code·class="inline">ACC</code>·column·is·the·total·time·of·the·trace·from·first·timestamp·to |
| 207 | last.·And·in·the·<code·class="inline">OWN</code>·column·is·the·sum·of·the·execution·time·in·functions·found | 207 | last.·And·in·the·<code·class="inline">OWN</code>·column·is·the·sum·of·the·execution·time·in·functions·found |
| 208 | in·the·trace,·not·including·called·functions.·In·this·case·it·is·very·close·to | 208 | in·the·trace,·not·including·called·functions.·In·this·case·it·is·very·close·to |
| 209 | the·<code·class="inline">ACC</code>·time·since·the·emulator·had·practically·nothing·to·do·except | 209 | the·<code·class="inline">ACC</code>·time·since·the·emulator·had·practically·nothing·to·do·except |
| 210 | executing·our·test·program.</p><p>All·time·values·in·the·printout·are·in·milliseconds.</p><p>The·printout·continues:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%·······································CNT·······ACC·······OWN</span><span·class="w"> | 210 | executing·our·test·program.</p><p>All·time·values·in·the·printout·are·in·milliseconds.</p><p>The·printout·continues:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%·······································CNT·······ACC·······OWN</span><span·class="w"> |
| 211 | </span><span·class="p"·data-group-id=" | 211 | </span><span·class="p"·data-group-id="3925538162-1">[</span><span·class="p"·data-group-id="3925538162-2">{</span><span·class="w">·</span><span·class="s">"<0.28.0>"</span><span·class="p">,</span><span·class="w">·························</span><span·class="mi">9627</span><span·cl[·...·truncated·by·diffoscope;·len:·223,·SHA:·86326d8388b0bc4e14132f7eb91cfac8f417e5c4ee906379a8127b81e2394a74·...·]-1">]</span><span·class="p">.</span><span·class="w">···</span><span·class="c1">%%</span></code></pre><p>This·is·the·printout·header·of·one·process.·The·printout·contains·only·this·one |
| 212 | process·since·we·called·<a·href="#apply/3"><code·class="inline">fprof:apply/3</code></a>·that·traces·only·the·current·process. | 212 | process·since·we·called·<a·href="#apply/3"><code·class="inline">fprof:apply/3</code></a>·that·traces·only·the·current·process. |
| 213 | Therefore·the·<code·class="inline">CNT</code>·and·<code·class="inline">OWN</code>·columns·perfectly·matches·the·totals·above.·The·<code·class="inline">ACC</code> | 213 | Therefore·the·<code·class="inline">CNT</code>·and·<code·class="inline">OWN</code>·columns·perfectly·matches·the·totals·above.·The·<code·class="inline">ACC</code> |
| 214 | column·is·undefined·since·summing·the·<code·class="inline">ACC</code>·times·of·all·calls·in·the·process | 214 | column·is·undefined·since·summing·the·<code·class="inline">ACC</code>·times·of·all·calls·in·the·process |
| 215 | makes·no·sense·—·one·would·get·something·like·the·<code·class="inline">ACC</code>·value·from·totals·above | 215 | makes·no·sense·—·one·would·get·something·like·the·<code·class="inline">ACC</code>·value·from·totals·above |
| 216 | multiplied·by·the·average·depth·of·the·call·stack.</p><p>All·paragraphs·up·to·the·next·process·header·only·concerns·function·calls·within | 216 | multiplied·by·the·average·depth·of·the·call·stack.</p><p>All·paragraphs·up·to·the·next·process·header·only·concerns·function·calls·within |
| 217 | this·process.</p><p>Now·we·come·to·something·more·interesting:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 217 | this·process.</p><p>Now·we·come·to·something·more·interesting:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="7344186509-1">{</span><span·class="p"·data-group-id="7344186509-2">[</span><span·class="p"·data-group-id="7344186509-3">{</span><span·class="ss">undefined</span><span·class="p">,</span><span·class="w">·····························</span><span·class="mi">0<[·...·truncated·by·diffoscope;·len:·260,·SHA:·175775415017f292a27ea1e1ac743c6d6a037e3aa4d0c9a2d9fd36cf2df86e27·...·]-2">]</span><span·class="p">,</span><span·class="w"> |
| 218 | ·</span><span·class="p"·data-group-id=" | 218 | ·</span><span·class="p"·data-group-id="7344186509-4">{</span><span·class="w">·</span><span·class="p"·data-group-id="7344186509-5">{</span><span·class="ss">fprof</span><span·class="p">,</span><span·class="ss">apply_start_stop</span><span·class="p">,</span><span·class="mi">4</span><span·class="p"[·...·truncated·by·diffoscope;·len:·323,·SHA:·a14cbd8ad303947b2e89c515dd16b8bfde07994a0aa1909b44437ff3d250d815·...·]-4">}</span><span·class="p">,</span><span·class="w">·····</span><span·class="c1">%</span><span·class="w"> |
| 219 | ·</span><span·class="p"·data-group-id=" | 219 | ·</span><span·class="p"·data-group-id="7344186509-6">[</span><span·class="p"·data-group-id="7344186509-7">{</span><span·class="p"·data-group-id="7344186509-8">{</span><span·class="ss">foo</span><span·class="p">,</span><span·class="ss">create_file_slow</span><span·class="p">,</span><span·class="[·...·truncated·by·diffoscope;·len:·352,·SHA:·2ab11720c87fa1c43ad806c05cb26fd3e6404c68ceebbdd01a5100171d8c51fc·...·]-7">}</span><span·class="p">,</span><span·class="w"> |
| 220 | ··</span><span·class="p"·data-group-id=" | 220 | ··</span><span·class="p"·data-group-id="7344186509-9">{</span><span·class="ss">suspend</span><span·class="p">,</span><span·class="w">·······························</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">····</span><span·class="mf">0.000</span><span·class="p">,</s[·...·truncated·by·diffoscope;·len:·207,·SHA:·2edb22ff6386eb842280d9fa437575a8c4ef6edb9c50e9f94c0f3d8640cfb374·...·]-1">}</span><span·class="p">.</span><span·class="w"> |
| 221 | </span><span·class="p"·data-group-id=" | 221 | </span><span·class="p"·data-group-id="7344186509-10">{</span><span·class="p"·data-group-id="7344186509-11">[</span><span·class="p"·data-group-id="7344186509-12">{</span><span·class="p"·data-group-id="7344186509-13">{</span><span·class="ss">fprof</span><span·class="p">,</span><span·class="ss">a[·...·truncated·by·diffoscope;·len:·464,·SHA:·f70d5e73915803853341fbb17388480761b82aa4029143493a955ff5d34b2e52·...·]-11">]</span><span·class="p">,</span><span·class="w"> |
| 222 | ·</span><span·class="p"·data-group-id=" | 222 | ·</span><span·class="p"·data-group-id="7344186509-14">{</span><span·class="w">·</span><span·class="p"·data-group-id="7344186509-15">{</span><span·class="ss">foo</span><span·class="p">,</span><span·class="ss">create_file_slow</span><span·class="p">,</span><span·class="mi">2</span><span·class="p"[·...·truncated·by·diffoscope;·len:·326,·SHA:·8754ad9ccfb98cfe3af8e49669e82453b756fec9d0407ff7ca2768fddf6cb9e0·...·]-14">}</span><span·class="p">,</span><span·class="w">·····</span><span·class="c1">%</span><span·class="w"> |
| 223 | ·</span><span·class="p"·data-group-id=" | 223 | ·</span><span·class="p"·data-group-id="7344186509-16">[</span><span·class="p"·data-group-id="7344186509-17">{</span><span·class="p"·data-group-id="7344186509-18">{</span><span·class="ss">file</span><span·class="p">,</span><span·class="ss">close</span><span·class="p">,</span><span·class="mi">1</[·...·truncated·by·diffoscope;·len:·356,·SHA:·1938d2108bd35d183a8ffd1d96c99bdcf0d25a4905897f565073fa4218ddca50·...·]-17">}</span><span·class="p">,</span><span·class="w"> |
| 224 | ··</span><span·class="p"·data-group-id=" | 224 | ··</span><span·class="p"·data-group-id="7344186509-19">{</span><span·class="p"·data-group-id="7344186509-20">{</span><span·class="ss">foo</span><span·class="p">,</span><span·class="ss">create_file_slow</span><span·class="p">,</span><span·class="mi">3</span><span·class="p"·data-group-id="73441865[·...·truncated·by·diffoscope;·len:·302,·SHA:·1e3d71429c11306b00f52da50a92c93ed88dceed38a9129988396952a1bb06ed·...·]-19">}</span><span·class="p">,</span><span·class="w"> |
| 225 | ··</span><span·class="p"·data-group-id=" | 225 | ··</span><span·class="p"·data-group-id="7344186509-21">{</span><span·class="p"·data-group-id="7344186509-22">{</span><span·class="ss">file</span><span·class="p">,</span><span·class="ss">open</span><span·class="p">,</span><span·class="mi">2</span><span·class="p"·data-group-id="7344186509-22">}</s[·...·truncated·by·diffoscope;·len:·302,·SHA:·1e167675a57a3827d3e045b4b9eb55674e282f005786a744fbdb1752aceb2d9f·...·]-21">}</span><span·class="p">,</span><span·class="w"> |
| 226 | ··</span><span·class="p"·data-group-id=" | 226 | ··</span><span·class="p"·data-group-id="7344186509-23">{</span><span·class="p"·data-group-id="7344186509-24">{</span><span·class="ss">lists</span><span·class="p">,</span><span·class="ss">map</span><span·class="p">,</span><span·class="mi">2</span><span·class="p"·data-group-id="7344186509-24">}</s[·...·truncated·by·diffoscope;·len:·302,·SHA:·615159f63e7c7d7d7081d3c839525f656c7028fa0394da0fdecfc345a4f663ff·...·]-23">}</span><span·class="p">,</span><span·class="w"> |
| 227 | ··</span><span·class="p"·data-group-id=" | 227 | ··</span><span·class="p"·data-group-id="7344186509-25">{</span><span·class="p"·data-group-id="7344186509-26">{</span><span·class="ss">lists</span><span·class="p">,</span><span·class="ss">seq</span><span·class="p">,</span><span·class="mi">2</span><span·class="p"·data-group-id="7344186509-26">}</s[·...·truncated·by·diffoscope;·len:·302,·SHA:·832f5fbc14d01f01d26e4b4a93f0c5f020e20d7f306854f70234506fa603fbc0·...·]-25">}</span><span·class="p">,</span><span·class="w"> |
| 228 | ··</span><span·class="p"·data-group-id=" | 228 | ··</span><span·class="p"·data-group-id="7344186509-27">{</span><span·class="p"·data-group-id="7344186509-28">{</span><span·class="ss">file</span><span·class="p">,</span><span·class="ss">write</span><span·class="p">,</span><span·class="mi">2</span><span·class="p"·data-group-id="7344186509-28">}</[·...·truncated·by·diffoscope;·len:·410,·SHA:·680f9fd3c44d5a138679ecf17e3259302fd4fe8e93a256cce134d84baaa998c9·...·]-10">}</span><span·class="p">.</span></code></pre><p>The·printout·consists·of·one·paragraph·per·called·function.·The·function |
| 229 | <em>marked</em>·with·<code·class="inline">%</code>·is·the·one·the·paragraph·concerns·—·<code·class="inline">foo:create_file_slow/2</code>. | 229 | <em>marked</em>·with·<code·class="inline">%</code>·is·the·one·the·paragraph·concerns·—·<code·class="inline">foo:create_file_slow/2</code>. |
| 230 | Above·the·marked·function·are·the·<em>calling</em>·functions·—·those·that·has·called | 230 | Above·the·marked·function·are·the·<em>calling</em>·functions·—·those·that·has·called |
| 231 | the·marked,·and·below·are·those·<em>called</em>·by·the·marked·function.</p><p>The·paragraphs·are·per·default·sorted·in·descending·order·of·the·<code·class="inline">ACC</code>·column·for | 231 | the·marked,·and·below·are·those·<em>called</em>·by·the·marked·function.</p><p>The·paragraphs·are·per·default·sorted·in·descending·order·of·the·<code·class="inline">ACC</code>·column·for |
| 232 | the·marked·function.·The·calling·list·and·called·list·within·one·paragraph·are | 232 | the·marked·function.·The·calling·list·and·called·list·within·one·paragraph·are |
| 233 | also·per·default·sorted·in·descending·order·of·their·<code·class="inline">ACC</code>·column.</p><p>The·columns·are:</p><ul><li><code·class="inline">CNT</code>·-·the·number·of·times·the·function·has·been·called</li><li><code·class="inline">ACC</code>·-·the·time·spent·in·the·function·including·called·functions</li><li><code·class="inline">OWN</code>·-·the·time·spent·in·the·function·not·including·called·functions</li></ul><p>The·rows·for·the·<em>calling</em>·functions·contain·statistics·for·the·<em>marked</em> | 233 | also·per·default·sorted·in·descending·order·of·their·<code·class="inline">ACC</code>·column.</p><p>The·columns·are:</p><ul><li><code·class="inline">CNT</code>·-·the·number·of·times·the·function·has·been·called</li><li><code·class="inline">ACC</code>·-·the·time·spent·in·the·function·including·called·functions</li><li><code·class="inline">OWN</code>·-·the·time·spent·in·the·function·not·including·called·functions</li></ul><p>The·rows·for·the·<em>calling</em>·functions·contain·statistics·for·the·<em>marked</em> |
| 234 | function·with·the·constraint·that·only·the·occasions·when·a·call·was·made·from | 234 | function·with·the·constraint·that·only·the·occasions·when·a·call·was·made·from |
| 235 | the·<em>row's</em>·function·to·the·<em>marked</em>·function·are·accounted·for.</p><p>The·row·for·the·<em>marked</em>·function·simply·contains·the·sum·of·all·<em>calling</em>·rows.</p><p>The·rows·for·the·<em>called</em>·functions·contains·statistics·for·the·<em>row's</em>·function | 235 | the·<em>row's</em>·function·to·the·<em>marked</em>·function·are·accounted·for.</p><p>The·row·for·the·<em>marked</em>·function·simply·contains·the·sum·of·all·<em>calling</em>·rows.</p><p>The·rows·for·the·<em>called</em>·functions·contains·statistics·for·the·<em>row's</em>·function |
| Offset 242, 109 lines modified | Offset 242, 109 lines modified | ||
| 242 | execution.·It·spent·most·of·its·time·in·<a·href="../../../../lib/kernel-10.3/doc/html/file.html#close/1"><code·class="inline">file:close/1</code></a>.·The·function | 242 | execution.·It·spent·most·of·its·time·in·<a·href="../../../../lib/kernel-10.3/doc/html/file.html#close/1"><code·class="inline">file:close/1</code></a>.·The·function |
| 243 | <code·class="inline">foo:create_file_slow/3</code>·that·writes·3/4·of·the·file·contents·is·the·second | 243 | <code·class="inline">foo:create_file_slow/3</code>·that·writes·3/4·of·the·file·contents·is·the·second |
| 244 | biggest·time·thief.</p><p>We·also·see·that·the·call·to·<a·href="../../../../lib/kernel-10.3/doc/html/file.html#write/2"><code·class="inline">file:write/2</code></a>·that·writes·1/4·of·the·file·contents | 244 | biggest·time·thief.</p><p>We·also·see·that·the·call·to·<a·href="../../../../lib/kernel-10.3/doc/html/file.html#write/2"><code·class="inline">file:write/2</code></a>·that·writes·1/4·of·the·file·contents |
| 245 | takes·very·little·time·in·itself.·What·takes·time·is·to·build·the·data | 245 | takes·very·little·time·in·itself.·What·takes·time·is·to·build·the·data |
| 246 | (<a·href="../../../../lib/stdlib-7.0/doc/html/lists.html#seq/2"><code·class="inline">lists:seq/2</code></a>·and·<a·href="../../../../lib/stdlib-7.0/doc/html/lists.html#map/2"><code·class="inline">lists:map/2</code></a>).</p><p>The·function·<code·class="inline">undefined</code>·that·has·called·<code·class="inline">fprof:apply_start_stop/4</code>·is·an | 246 | (<a·href="../../../../lib/stdlib-7.0/doc/html/lists.html#seq/2"><code·class="inline">lists:seq/2</code></a>·and·<a·href="../../../../lib/stdlib-7.0/doc/html/lists.html#map/2"><code·class="inline">lists:map/2</code></a>).</p><p>The·function·<code·class="inline">undefined</code>·that·has·called·<code·class="inline">fprof:apply_start_stop/4</code>·is·an |
| 247 | unknown·function·because·that·call·was·not·recorded·in·the·trace.·It·was·only | 247 | unknown·function·because·that·call·was·not·recorded·in·the·trace.·It·was·only |
| 248 | recorded·that·the·execution·returned·from·<code·class="inline">fprof:apply_start_stop/4</code>·to·some | 248 | recorded·that·the·execution·returned·from·<code·class="inline">fprof:apply_start_stop/4</code>·to·some |
| 249 | other·function·above·in·the·call·stack,·or·that·the·process·exited·from·there.</p><p>Let·us·continue·down·the·printout·to·find:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 249 | other·function·above·in·the·call·stack,·or·that·the·process·exited·from·there.</p><p>Let·us·continue·down·the·printout·to·find:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="6217761398-1">{</span><span·class="p"·data-group-id="6217761398-2">[</span><span·class="p"·data-group-id="6217761398-3">{</span><span·class="p"·data-group-id="6217761398-4">{</span><span·class="ss">foo</span><span·class="p">,</span><span·class="ss">create_[·...·truncated·by·diffoscope;·len:·405,·SHA:·51bf5847c292a206d7348bc18bd0898d02556816ccd3b714224ebf207f33a19c·...·]-3">}</span><span·class="p">,</span><span·class="w"> |
| 250 | ··</span><span·class="p"·data-group-id=" | 250 | ··</span><span·class="p"·data-group-id="6217761398-5">{</span><span·class="p"·data-group-id="6217761398-6">{</span><span·class="ss">foo</span><span·class="p">,</span><span·class="ss">create_file_slow</span><span·class="p">,</span><span·class="mi">3</span><span·class="p"·data-group-id="6217761398[·...·truncated·by·diffoscope;·len:·352,·SHA:·ac5e63ae2d88717bd72601c3ad51f889f1615a5f1beb4bd655ef7a59af45ea48·...·]-2">]</span><span·class="p">,</span><span·class="w"> |
| 251 | ·</span><span·class="p"·data-group-id=" | 251 | ·</span><span·class="p"·data-group-id="6217761398-7">{</span><span·class="w">·</span><span·class="p"·data-group-id="6217761398-8">{</span><span·class="ss">foo</span><span·class="p">,</span><span·class="ss">create_file_slow</span><span·class="p">,</span><span·class="mi">3</span><span·class="p"·d[·...·truncated·by·diffoscope;·len:·323,·SHA:·1adc04feee2de37d3e1e50b530452401595fc8ecbfbfec631764ff119f1a6700·...·]-7">}</span><span·class="p">,</span><span·class="w">·····</span><span·class="c1">%</span><span·class="w"> |
| 252 | ·</span><span·class="p"·data-group-id=" | 252 | ·</span><span·class="p"·data-group-id="6217761398-9">[</span><span·class="p"·data-group-id="6217761398-10">{</span><span·class="p"·data-group-id="6217761398-11">{</span><span·class="ss">file</span><span·class="p">,</span><span·class="ss">write</span><span·class="p">,</span><span·class="mi">2</s[·...·truncated·by·diffoscope;·len:·355,·SHA:·d759c2606637240f70892074adf7e33447682ee9ed3cb1ec0856b47e7f82c9c8·...·]-10">}</span><span·class="p">,</span><span·class="w"> |
| 253 | ··</span><span·class="p"·data-group-id=" | 253 | ··</span><span·class="p"·data-group-id="6217761398-12">{</span><span·class="ss">suspend</span><span·class="p">,</span><span·class="w">······························</span><span·class="mi">57</span><span·class="p">,</span><span·class="w">····</span><span·class="mf">6.041</span><span·class="p">,</[·...·truncated·by·diffoscope;·len:·102,·SHA:·51a9296b30ff534656d903eb7c349671398b5a11f49eb919f5dd1542673c811c·...·]-12">}</span><span·class="p">,</span><span·class="w"> |
| 254 | ··</span><span·class="p"·data-group-id=" | 254 | ··</span><span·class="p"·data-group-id="6217761398-13">{</span><span·class="p"·data-group-id="6217761398-14">{</span><span·class="ss">foo</span><span·class="p">,</span><span·class="ss">create_file_slow</span><span·class="p">,</span><span·class="mi">3</span><span·class="p"·data-group-id="62177613[·...·truncated·by·diffoscope;·len:·409,·SHA:·ec43429f9fb5e071f0ef1dd933ad3a47c1a1b8778c2e00ea71beb025aa1f8466·...·]-1">}</span><span·class="p">.</span></code></pre><p>If·you·compare·with·the·code·you·will·see·there·also·that |
| 255 | <code·class="inline">foo:create_file_slow/3</code>·was·called·only·from·<code·class="inline">foo:create_file_slow/2</code>·and | 255 | <code·class="inline">foo:create_file_slow/3</code>·was·called·only·from·<code·class="inline">foo:create_file_slow/2</code>·and |
| 256 | itself,·and·called·only·<a·href="../../../../lib/kernel-10.3/doc/html/file.html#write/2"><code·class="inline">file:write/2</code></a>,·note·the·number·of·calls·to | 256 | itself,·and·called·only·<a·href="../../../../lib/kernel-10.3/doc/html/file.html#write/2"><code·class="inline">file:write/2</code></a>,·note·the·number·of·calls·to |
| 257 | <a·href="../../../../lib/kernel-10.3/doc/html/file.html#write/2"><code·class="inline">file:write/2</code></a>.·But·here·we·see·that·<code·class="inline">suspend</code>·was·called·a·few·times.·This·is·a | 257 | <a·href="../../../../lib/kernel-10.3/doc/html/file.html#write/2"><code·class="inline">file:write/2</code></a>.·But·here·we·see·that·<code·class="inline">suspend</code>·was·called·a·few·times.·This·is·a |
| 258 | pseudo·function·that·indicates·that·the·process·was·suspended·while·executing·in | 258 | pseudo·function·that·indicates·that·the·process·was·suspended·while·executing·in |
| 259 | <code·class="inline">foo:create_file_slow/3</code>,·and·since·there·is·no·<code·class="inline">receive</code>·or·<a·href="../../../../erts-16.0/doc/html/erlang.html#yield/0"><code·class="inline">erlang:yield/0</code></a>·in | 259 | <code·class="inline">foo:create_file_slow/3</code>,·and·since·there·is·no·<code·class="inline">receive</code>·or·<a·href="../../../../erts-16.0/doc/html/erlang.html#yield/0"><code·class="inline">erlang:yield/0</code></a>·in |
| 260 | the·code,·it·must·be·Erlang·scheduling·suspensions,·or·the·trace·file·driver | 260 | the·code,·it·must·be·Erlang·scheduling·suspensions,·or·the·trace·file·driver |
| 261 | compensating·for·large·file·write·operations·(these·are·regarded·as·a·schedule | 261 | compensating·for·large·file·write·operations·(these·are·regarded·as·a·schedule |
| 262 | out·followed·by·a·schedule·in·to·the·same·process).</p><p>Let·us·find·the·<code·class="inline">suspend</code>·entry:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 262 | out·followed·by·a·schedule·in·to·the·same·process).</p><p>Let·us·find·the·<code·class="inline">suspend</code>·entry:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="3779321226-1">{</span><span·class="p"·data-group-id="3779321226-2">[</span><span·class="p"·data-group-id="3779321226-3">{</span><span·class="p"·data-group-id="3779321226-4">{</span><span·class="ss">file</span><span·class="p">,</span><span·class="ss">write<[·...·truncated·by·diffoscope;·len:·405,·SHA:·52738234db07433fedf5a0b314fb3c2b27ac1e71748701bcaf753a0046033bf6·...·]-3">}</span><span·class="p">,</span><span·class="w"> |
| 263 | ··</span><span·class="p"·data-group-id=" | 263 | ··</span><span·class="p"·data-group-id="3779321226-5">{</span><span·class="p"·data-group-id="3779321226-6">{</span><span·class="ss">foo</span><span·class="p">,</span><span·class="ss">create_file_slow</span><span·class="p">,</span><span·class="mi">3</span><span·class="p"·data-group-id="3779321226[·...·truncated·by·diffoscope;·len:·299,·SHA:·b62d422d7bb3f2bd38451def31e9de89c3aa0ceee7b40bdcd38d8a56f40c30d7·...·]-5">}</span><span·class="p">,</span><span·class="w"> |
| 264 | ··</span><span·class="p"·data-group-id=" | 264 | ··</span><span·class="p"·data-group-id="3779321226-7">{</span><span·class="p"·data-group-id="3779321226-8">{</span><span·class="ss">prim_file</span><span·class="p">,</span><span·class="ss">drv_command</span><span·class="p">,</span><span·class="mi">4</span><span·class="p"·data-group-id="377932122[·...·truncated·by·diffoscope;·len:·299,·SHA:·e81b40a285fda8a263fefbf0ab47679a943a5c500638d87dbcd7a31d5e49d1e6·...·]-7">}</span><span·class="p">,</span><span·class="w"> |
| 265 | ··</span><span·class="p"·data-group-id=" | 265 | ··</span><span·class="p"·data-group-id="3779321226-9">{</span><span·class="p"·data-group-id="3779321226-10">{</span><span·class="ss">prim_file</span><span·class="p">,</span><span·class="ss">drv_get_response</span><span·class="p">,</span><span·class="mi">1</span><span·class="p"·data-group-id="377[·...·truncated·by·diffoscope;·len:·301,·SHA:·a70e6b8eb039ca4de59dc7e3ffa603bf5fefb775f65e691f8792a38310fd5d33·...·]-9">}</span><span·class="p">,</span><span·class="w"> |
| 266 | ··</span><span·class="p"·data-group-id=" | 266 | ··</span><span·class="p"·data-group-id="3779321226-11">{</span><span·class="p"·data-group-id="3779321226-12">{</span><span·class="ss">lists</span><span·class="p">,</span><span·class="ss">map</span><span·class="p">,</span><span·class="mi">2</span><span·class="p"·data-group-id="3779321226-12">}</s[·...·truncated·by·diffoscope;·len:·302,·SHA:·8d256d23c8843b1c5801ba950375c2de78f75b24f2d1463ce1502a738f57e546·...·]-11">}</span><span·class="p">,</span><span·class="w"> |
| 267 | ··</span><span·class="p"·data-group-id=" | 267 | ··</span><span·class="p"·data-group-id="3779321226-13">{</span><span·class="p"·data-group-id="3779321226-14">{</span><span·class="ss">prim_file</span><span·class="p">,</span><span·class="ss">write</span><span·class="p">,</span><span·class="mi">2</span><span·class="p"·data-group-id="3779321226-14[·...·truncated·by·diffoscope;·len:·302,·SHA:·12a18a202d028125226dabc13ea34304286e5d5c87c2eca97947af985a2388c1·...·]-13">}</span><span·class="p">,</span><span·class="w"> |
| 268 | ··</span><span·class="p"·data-group-id=" | 268 | ··</span><span·class="p"·data-group-id="3779321226-15">{</span><span·class="p"·data-group-id="3779321226-16">{</span><span·class="ss">erlang</span><span·class="p">,</span><span·class="nb">port_command</span><span·class="p">,</span><span·class="mi">2</span><span·class="p"·data-group-id="377932122[·...·truncated·by·diffoscope;·len:·302,·SHA:·4152b665e17da5b458c85ca476eaf4a3b53be3d1157fd850ea9c56919d7d41c3·...·]-15">}</span><span·class="p">,</span><span·class="w"> |
| 269 | ··</span><span·class="p"·data-group-id=" | 269 | ··</span><span·class="p"·data-group-id="3779321226-17">{</span><span·class="p"·data-group-id="3779321226-18">{</span><span·class="ss">prim_file</span><span·class="p">,</span><span·class="ss">drv_command</span><span·class="p">,</span><span·class="mi">2</span><span·class="p"·data-group-id="3779321[·...·truncated·by·diffoscope;·len:·302,·SHA:·369bb440600b9d2a2227e412cb019e5a8f8710a2ba83e64fbcc20fcde6730a70·...·]-17">}</span><span·class="p">,</span><span·class="w"> |
| 270 | ··</span><span·class="p"·data-group-id=" | 270 | ··</span><span·class="p"·data-group-id="3779321226-19">{</span><span·class="p"·data-group-id="3779321226-20">{</span><span·class="ss">prim_file</span><span·class="p">,</span><span·class="ss">translate_response</span><span·class="p">,</span><span·class="mi">2</span><span·class="p"·data-group-id="[·...·truncated·by·diffoscope;·len:·302,·SHA:·9e1dc1095dc62ef1f4d8de87ae1ab90b051ea9f7fbe543915b79cdc172ed7814·...·]-19">}</span><span·class="p">,</span><span·class="w"> |
| 271 | ··</span><span·class="p"·data-group-id=" | 271 | ··</span><span·class="p"·data-group-id="3779321226-21">{</span><span·class="p"·data-group-id="3779321226-22">{</span><span·class="ss">prim_file</span><span·class="p">,</span><span·class="ss">'-drv_command/2-fun-0-'</span><span·class="p">,</span><span·class="mi">1</span><span·class="p"·da[·...·truncated·by·diffoscope;·len:·312,·SHA:·2fa316559df34d4fa40e9079a720316c0be0b63f2e8bac824a026b6b1b61ad50·...·]-21">}</span><span·class="p">,</span><span·class="w"> |
| 272 | ··</span><span·class="p"·data-group-id=" | 272 | ··</span><span·class="p"·data-group-id="3779321226-23">{</span><span·class="p"·data-group-id="3779321226-24">{</span><span·class="ss">lists</span><span·class="p">,</span><span·class="ss">seq</span><span·class="p">,</span><span·class="mi">4</span><span·class="p"·data-group-id="3779321226-24">}</s[·...·truncated·by·diffoscope;·len:·302,·SHA:·146dffb60fe1961df181f85c8deae8c0b411b2aba5c123d4dee5438b01c4ab0d·...·]-23">}</span><span·class="p">,</span><span·class="w"> |
| 273 | ··</span><span·class="p"·data-group-id=" | 273 | ··</span><span·class="p"·data-group-id="3779321226-25">{</span><span·class="p"·data-group-id="3779321226-26">{</span><span·class="ss">foo</span><span·class="p">,</span><span·class="ss">'-create_file_slow/2-fun-0-'</span><span·class="p">,</span><span·class="mi">1</span><span·class="p"·dat[·...·truncated·by·diffoscope;·len:·311,·SHA:·5d0fc755386c827ba8781c7eaa598a69acb184c58b6840dd7258ddc953b064fe·...·]-25">}</span><span·class="p">,</span><span·class="w"> |
| 274 | ··</span><span·class="p"·data-group-id=" | 274 | ··</span><span·class="p"·data-group-id="3779321226-27">{</span><span·class="p"·data-group-id="3779321226-28">{</span><span·class="ss">erlang</span><span·class="p">,</span><span·class="nb">bump_reductions</span><span·class="p">,</span><span·class="mi">1</span><span·class="p"·data-group-id="377932[·...·truncated·by·diffoscope;·len:·302,·SHA:·f05822fb75c2219d05da73439365e64e6eb42fa70561f25bc9bc903d5b4b4796·...·]-27">}</span><span·class="p">,</span><span·class="w"> |
| 275 | ··</span><span·class="p"·data-group-id=" | 275 | ··</span><span·class="p"·data-group-id="3779321226-29">{</span><span·class="p"·data-group-id="3779321226-30">{</span><span·class="ss">prim_file</span><span·class="p">,</span><span·class="ss">open_int_setopts</span><span·class="p">,</span><span·class="mi">3</span><span·class="p"·data-group-id="37[·...·truncated·by·diffoscope;·len:·302,·SHA:·2a0f7db5356d4ad1a8efba3f53368b0e6ba7a708097dd3abcaceeb24e32464dc·...·]-29">}</span><span·class="p">,</span><span·class="w"> |
| 276 | ··</span><span·class="p"·data-group-id=" | 276 | ··</span><span·class="p"·data-group-id="3779321226-31">{</span><span·class="p"·data-group-id="3779321226-32">{</span><span·class="ss">prim_file</span><span·class="p">,</span><span·class="ss">i32</span><span·class="p">,</span><span·class="mi">4</span><span·class="p"·data-group-id="3779321226-32">[·...·truncated·by·diffoscope;·len:·302,·SHA:·d460a4526b3a0e4634a2a66b1c3c687cd39f51e16b40f6ecc6be72105cb38057·...·]-31">}</span><span·class="p">,</span><span·class="w"> |
| 277 | ··</span><span·class="p"·data-group-id=" | 277 | ··</span><span·class="p"·data-group-id="3779321226-33">{</span><span·class="p"·data-group-id="3779321226-34">{</span><span·class="ss">fprof</span><span·class="p">,</span><span·class="ss">apply_start_stop</span><span·class="p">,</span><span·class="mi">4</span><span·class="p"·data-group-id="377932[·...·truncated·by·diffoscope;·len:·356,·SHA:·3659b967771700f69ef431c7c6f4b713e615d1cc7f37d33c2d3d3905506262c4·...·]-2">]</span><span·class="p">,</span><span·class="w"> |
| 278 | ·</span><span·class="p"·data-group-id=" | 278 | ·</span><span·class="p"·data-group-id="3779321226-35">{</span><span·class="w">·</span><span·class="ss">suspend</span><span·class="p">,</span><span·class="w">·····························</span><span·class="mi">299</span><span·class="p">,</span><span·class="w">···</span><span·class="mf">32.002</[·...·truncated·by·diffoscope;·len:·126,·SHA:·19c26d8cee947e774af89ec41f4e4a6c18f0e4999178b1b7f0a7f52977c13e17·...·]-35">}</span><span·class="p">,</span><span·class="w">·····</span><span·class="c1">%</span><span·class="w"> |
| 279 | ·</span><span·class="p"·data-group-id=" | 279 | ·</span><span·class="p"·data-group-id="3779321226-36">[</span><span·class="w">·</span><span·class="p"·data-group-id="3779321226-36">]</span><span·class="p"·data-group-id="3779321226-1">}</span><span·class="p">.</span></code></pre><p>We·find·no·particularly·long·suspend·times,·so·no·function·seems·to·have·waited |
| 280 | in·a·receive·statement.·Actually,·<code·class="inline">prim_file:drv_command/4</code>·contains·a·receive | 280 | in·a·receive·statement.·Actually,·<code·class="inline">prim_file:drv_command/4</code>·contains·a·receive |
| 281 | statement,·but·in·this·test·program,·the·message·lies·in·the·process·receive | 281 | statement,·but·in·this·test·program,·the·message·lies·in·the·process·receive |
| 282 | buffer·when·the·receive·statement·is·entered.·We·also·see·that·the·total·suspend | 282 | buffer·when·the·receive·statement·is·entered.·We·also·see·that·the·total·suspend |
| 283 | time·for·the·test·run·is·small.</p><p>The·<code·class="inline">suspend</code>·pseudo·function·has·an·<code·class="inline">OWN</code>·time·of·zero.·This·is·to·prevent | 283 | time·for·the·test·run·is·small.</p><p>The·<code·class="inline">suspend</code>·pseudo·function·has·an·<code·class="inline">OWN</code>·time·of·zero.·This·is·to·prevent |
| 284 | the·process·total·<code·class="inline">OWN</code>·time·from·including·time·in·suspension.·Whether·suspend | 284 | the·process·total·<code·class="inline">OWN</code>·time·from·including·time·in·suspension.·Whether·suspend |
| 285 | time·is·really·<code·class="inline">ACC</code>·or·<code·class="inline">OWN</code>·time·is·more·of·a·philosophical·question.</p><p>Now·we·look·at·another·interesting·pseudo·function,·<code·class="inline">garbage_collect</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 285 | time·is·really·<code·class="inline">ACC</code>·or·<code·class="inline">OWN</code>·time·is·more·of·a·philosophical·question.</p><p>Now·we·look·at·another·interesting·pseudo·function,·<code·class="inline">garbage_collect</code>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="0818637218-1">{</span><span·class="p"·data-group-id="0818637218-2">[</span><span·class="p"·data-group-id="0818637218-3">{</span><span·class="p"·data-group-id="0818637218-4">{</span><span·class="ss">prim_file</span><span·class="p">,</span><span·class="ss">d[·...·truncated·by·diffoscope;·len:·405,·SHA:·0b5f320ba1085745e064ab40626b77103923417d12396fa0d06b790dc683b4f1·...·]-3">}</span><span·class="p">,</span><span·class="w"> |
| 286 | ··</span><span·class="p"·data-group-id=" | 286 | ··</span><span·class="p"·data-group-id="0818637218-5">{</span><span·class="p"·data-group-id="0818637218-6">{</span><span·class="ss">prim_file</span><span·class="p">,</span><span·class="ss">write</span><span·class="p">,</span><span·class="mi">2</span><span·class="p"·data-group-id="0818637218-6">}[·...·truncated·by·diffoscope;·len:·299,·SHA:·317e565a025d48f2df9d479f9860a2188076b2ac9deade3aeb7ac7b73f9efa13·...·]-5">}</span><span·class="p">,</span><span·class="w"> |
| 287 | ··</span><span·class="p"·data-group-id=" | 287 | ··</span><span·class="p"·data-group-id="0818637218-7">{</span><span·class="p"·data-group-id="0818637218-8">{</span><span·class="ss">lists</span><span·class="p">,</span><span·class="ss">map</span><span·class="p">,</span><span·class="mi">2</span><span·class="p"·data-group-id="0818637218-8">}</span[·...·truncated·by·diffoscope;·len:·352,·SHA:·ebdc3a773822f2183c1804348750c2402a4c3de26f67c6e20ec779d3b91776a0·...·]-2">]</span><span·class="p">,</span><span·class="w"> |
| 288 | ·</span><span·class="p"·data-group-id=" | 288 | ·</span><span·class="p"·data-group-id="0818637218-9">{</span><span·class="w">·</span><span·class="nb">garbage_collect</span><span·class="p">,</span><span·class="w">······················</span><span·class="mi">43</span><span·class="p">,</span><span·class="w">····</span><span·class="mf">1.760</s[·...·truncated·by·diffoscope;·len:·125,·SHA:·f9cf8c292caf5d1a95e47a0986ac0bf0ebbc5b5b56557cfb2a871b1866b6e09a·...·]-9">}</span><span·class="p">,</span><span·class="w">·····</span><span·class="c1">%</span><span·class="w"> |
| 289 | ·</span><span·class="p"·data-group-id=" | 289 | ·</span><span·class="p"·data-group-id="0818637218-10">[</span><span·class="w">·</span><span·class="p"·data-group-id="0818637218-10">]</span><span·class="p"·data-group-id="0818637218-1">}</span><span·class="p">.</span></code></pre><p>Here·we·see·that·no·function·stands·out,·which·is·very·normal.</p><p>The·<code·class="inline">garbage_collect</code>·pseudo·function·has·not·an·<code·class="inline">OWN</code>·time·of·zero·like |
| 290 | <code·class="inline">suspend</code>,·instead·it·is·equal·to·the·<code·class="inline">ACC</code>·time.</p><p>Garbage·collection·often·occurs·while·a·process·is·suspended,·but·<code·class="inline">fprof</code>·hides | 290 | <code·class="inline">suspend</code>,·instead·it·is·equal·to·the·<code·class="inline">ACC</code>·time.</p><p>Garbage·collection·often·occurs·while·a·process·is·suspended,·but·<code·class="inline">fprof</code>·hides |
| 291 | this·fact·by·pretending·that·the·suspended·function·was·first·unsuspended·and | 291 | this·fact·by·pretending·that·the·suspended·function·was·first·unsuspended·and |
| 292 | then·garbage·collected.·Otherwise·the·printout·would·show·<code·class="inline">garbage_collect</code> | 292 | then·garbage·collected.·Otherwise·the·printout·would·show·<code·class="inline">garbage_collect</code> |
| 293 | being·called·from·<code·class="inline">suspend</code>,·but·not·which·function·that·might·have·caused·the | 293 | being·called·from·<code·class="inline">suspend</code>,·but·not·which·function·that·might·have·caused·the |
| 294 | garbage·collection.</p><p>Let·us·now·get·back·to·the·test·code:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 294 | garbage·collection.</p><p>Let·us·now·get·back·to·the·test·code:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="3978866807-1">{</span><span·class="p"·data-group-id="3978866807-2">[</span><span·class="p"·data-group-id="3978866807-3">{</span><span·class="p"·data-group-id="3978866807-4">{</span><span·class="ss">foo</span><span·class="p">,</span><span·class="ss">create_[·...·truncated·by·diffoscope;·len:·405,·SHA:·d07363202f4497a7da1f676b873f45cdf334f3d332e5f5071597bf1235943722·...·]-3">}</span><span·class="p">,</span><span·class="w"> |
| 295 | ··</span><span·class="p"·data-group-id=" | 295 | ··</span><span·class="p"·data-group-id="3978866807-5">{</span><span·class="p"·data-group-id="3978866807-6">{</span><span·class="ss">foo</span><span·class="p">,</span><span·class="ss">create_file_slow</span><span·class="p">,</span><span·class="mi">2</span><span·class="p"·data-group-id="3978866807[·...·truncated·by·diffoscope;·len:·352,·SHA:·90414af21e1e2ce975db00be04a220ed14582a1c813f60e68aca82cbc3275f70·...·]-2">]</span><span·class="p">,</span><span·class="w"> |
| 296 | ·</span><span·class="p"·data-group-id=" | 296 | ·</span><span·class="p"·data-group-id="3978866807-7">{</span><span·class="w">·</span><span·class="p"·data-group-id="3978866807-8">{</span><span·class="ss">file</span><span·class="p">,</span><span·class="ss">write</span><span·class="p">,</span><span·class="mi">2</span><span·class="p"·data-group-[·...·truncated·by·diffoscope;·len:·323,·SHA:·4f3e98109c813fd3eb49ad75f48ab7c15f0a7ee816d1f748084057fc449c8f48·...·]-7">}</span><span·class="p">,</span><span·class="w">·····</span><span·class="c1">%</span><span·class="w"> |
| 297 | ·</span><span·class="p"·data-group-id=" | 297 | ·</span><span·class="p"·data-group-id="3978866807-9">[</span><span·class="p"·data-group-id="3978866807-10">{</span><span·class="p"·data-group-id="3978866807-11">{</span><span·class="ss">prim_file</span><span·class="p">,</span><span·class="ss">write</span><span·class="p">,</span><span·class="mi"[·...·truncated·by·diffoscope;·len:·355,·SHA:·e7ee453a1d9d0d80fcaf8dd90cbad26201453c5e2698684fa06d5ba34bd94e6b·...·]-10">}</span><span·class="p">,</span><span·class="w"> |
| 298 | ··</span><span·class="p"·data-group-id=" | 298 | ··</span><span·class="p"·data-group-id="3978866807-12">{</span><span·class="ss">suspend</span><span·class="p">,</span><span·class="w">······························</span><span·class="mi">53</span><span·class="p">,</span><span·class="w">····</span><span·class="mf">6.281</span><span·class="p">,</[·...·truncated·by·diffoscope;·len:·209,·SHA:·33f47fe048119149e0e1704d6b2b0a61e91d3c3bf4b51fd804fe929d818ac533·...·]-1">}</span><span·class="p">.</span></code></pre><p>Not·unexpectedly,·we·see·that·<a·href="../../../../lib/kernel-10.3/doc/html/file.html#write/2"><code·class="inline">file:write/2</code></a>·was·called·from |
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| 172 | ··<a·href="#immediate-profiling"·class="hover-link"> | 172 | ··<a·href="#immediate-profiling"·class="hover-link"> |
| 173 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 173 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 174 | ··</a> | 174 | ··</a> |
| 175 | ··<span·class="text">Immediate·profiling</span> | 175 | ··<span·class="text">Immediate·profiling</span> |
| 176 | </h2> | 176 | </h2> |
| 177 | <p>It·is·also·possible·to·trace·immediately·into·the·profiling·process·that·creates | 177 | <p>It·is·also·possible·to·trace·immediately·into·the·profiling·process·that·creates |
| 178 | the·raw·profile·data,·that·is·to·short·circuit·the·tracing·and·profiling·steps | 178 | the·raw·profile·data,·that·is·to·short·circuit·the·tracing·and·profiling·steps |
| 179 | so·that·the·filesystem·is·not·used·for·tracing.</p><p>Do·something·like·this:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 179 | so·that·the·filesystem·is·not·used·for·tracing.</p><p>Do·something·like·this:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="9010820415-1">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Tracer</span><span·class="p"·data-group-id="9010820415-1">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·[·...·truncated·by·diffoscope;·len:·201,·SHA:·9c17b1243bc7635c57e2d7d412d5930a758931de3568459f82a9c3c295fbb31b·...·]-2">)</span><span·class="p">,</span><span·class="w"> |
| 180 | </span><span·class="nc">fprof</span><span·class="p">:</span><span·class="nf">trace</span><span·class="p"·data-group-id=" | 180 | </span><span·class="nc">fprof</span><span·class="p">:</span><span·class="nf">trace</span><span·class="p"·data-group-id="9010820415-3">(</span><span·class="p"·data-group-id="9010820415-4">[</span><span·class="ss">start</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9010820415-5">{</span><span·class="ss">tracer</span><span·class="p">,</sp[·...·truncated·by·diffoscope;·len:·203,·SHA:·c67e3eb49d71773619062e4818aba3576baba5e460039c0f793ca6f4f17b96ed·...·]-3">)</span><span·class="p">,</span><span·class="w"> |
| 181 | </span><span·class="c1">%%·Run·code·to·profile</span><span·class="w"> | 181 | </span><span·class="c1">%%·Run·code·to·profile</span><span·class="w"> |
| 182 | </span><span·class="nc">fprof</span><span·class="p">:</span><span·class="nf">trace</span><span·class="p"·data-group-id=" | 182 | </span><span·class="nc">fprof</span><span·class="p">:</span><span·class="nf">trace</span><span·class="p"·data-group-id="9010820415-6">(</span><span·class="ss">stop</span><span·class="p"·data-group-id="9010820415-6">)</span><span·class="p">;</span></code></pre><p>This·puts·less·load·on·the·filesystem,·but·much·more·load·on·the·Erlang·runtime |
| 183 | system.</p> | 183 | system.</p> |
| 184 | </div> | 184 | </div> |
| 185 | <div·class="bottom-actions"·id="bottom-actions"> | 185 | <div·class="bottom-actions"·id="bottom-actions"> |
| 186 | ··<div·class="bottom-actions-item"> | 186 | ··<div·class="bottom-actions-item"> |
| 187 | ······<a·href="erlang_mode_chapter.html"·class="bottom-actions-button"·rel="prev"> | 187 | ······<a·href="erlang_mode_chapter.html"·class="bottom-actions-button"·rel="prev"> |
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| 227 | ······<p·class="built-using"> | 227 | ······<p·class="built-using"> |
| 228 | ········Built·using | 228 | ········Built·using |
| 229 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 229 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 230 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 230 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 231 | ······</p> | 231 | ······</p> |
| 232 | <p>Copyright·©·1996-202 | 232 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 233 | ····</footer> | 233 | ····</footer> |
| 234 | ··</div> | 234 | ··</div> |
| 235 | </main> | 235 | </main> |
| 236 | </div> | 236 | </div> |
| 237 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 237 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 238 | ··<script> | 238 | ··<script> |
| 239 | ··let·initialized·=·false; | 239 | ··let·initialized·=·false; |
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| 1777 | ······<p·class="built-using"> | 1777 | ······<p·class="built-using"> |
| 1778 | ········Built·using | 1778 | ········Built·using |
| 1779 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1779 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1780 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1780 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1781 | ······</p> | 1781 | ······</p> |
| 1782 | <p>Copyright·©·1996-202 | 1782 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1783 | ····</footer> | 1783 | ····</footer> |
| 1784 | ··</div> | 1784 | ··</div> |
| 1785 | </main> | 1785 | </main> |
| 1786 | </div> | 1786 | </div> |
| 1787 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1787 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1788 | ··<script> | 1788 | ··<script> |
| 1789 | ··let·initialized·=·false; | 1789 | ··let·initialized·=·false; |
| Offset 229, 28 lines modified | Offset 229, 28 lines modified | ||
| 229 | ··<nonode@nohost.104.0>····5140··········0.7782········108 | 229 | ··<nonode@nohost.104.0>····5140··········0.7782········108 |
| 230 | ok</code></pre><h2·id="example-with-mnesia-transaction-benchmark"·class="section-heading"> | 230 | ok</code></pre><h2·id="example-with-mnesia-transaction-benchmark"·class="section-heading"> |
| 231 | ··<a·href="#example-with-mnesia-transaction-benchmark"·class="hover-link"> | 231 | ··<a·href="#example-with-mnesia-transaction-benchmark"·class="hover-link"> |
| 232 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 232 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 233 | ··</a> | 233 | ··</a> |
| 234 | ··<span·class="text">Example·with·Mnesia·Transaction·Benchmark</span> | 234 | ··<span·class="text">Example·with·Mnesia·Transaction·Benchmark</span> |
| 235 | </h2> | 235 | </h2> |
| 236 | <p>From·the·Erlang·shell:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Erlang</span><span·class="o">/</span><span·class="n">OTP</span><span·class="w">·</span><span·class="mi">27</span><span·class="w">·</span><span·class="p"·data-group-id=" | 236 | <p>From·the·Erlang·shell:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Erlang</span><span·class="o">/</span><span·class="n">OTP</span><span·class="w">·</span><span·class="mi">27</span><span·class="w">·</span><span·class="p"·data-group-id="3747544438-1">[</span><span·class="ss">erts</span><span·class="o">-</span><span·class="mf">15.0</span><span·class="p"·data-group-id="3747544438-1">]</span><span·class="w">·</span><span·class="p"·data-group-id="3747544438-2">[</span><span·class="mi">64</spa[·...·truncated·by·diffoscope;·len:·1287,·SHA:·22c093fbd4d39c45b4fb2e8596c10ab7d79e94a86ac002f7501a245712390afe·...·]-7">]</span><span·class="w"> |
| 237 | </span><span·class="n">Eshell</span><span·class="w">·</span><span·class="n">V15</span><span·class="p">.</span><span·class="mi">0</span><span·class="w">·</span><span·class="p"·data-group-id=" | 237 | </span><span·class="n">Eshell</span><span·class="w">·</span><span·class="n">V15</span><span·class="p">.</span><span·class="mi">0</span><span·class="w">·</span><span·class="p"·data-group-id="3747544438-8">(</span><span·class="ss">press</span><span·class="w">·</span><span·class="n">Ctrl</span><span·class="o">+</span><span·class="n">G</span><span·class="w">·</span><span·class="ss">to</span><span·class="w">·</span><span·class="ss">abort</span><sp[·...·truncated·by·diffoscope;·len:·399,·SHA:·51243b95e8aafd0216bd76cce47a3a461bc3d3b1cb47b900c8c8c7ba42d77bc7·...·]-8">)</span><span·class="gp·unselectable"> |
| 238 | 1>·</span><span·class="n">Conf</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 238 | 1>·</span><span·class="n">Conf</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p"·data-group-id="3747544438-10">[</span><span·class="p"·data-group-id="3747544438-11">{</span><span·class="ss">db_nodes</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3747544438-12">[</span><span·class="nf">node</span><span·class="p"·d[·...·truncated·by·diffoscope;·len:·1155,·SHA:·84b906e4fb5daf331106918f08b76a8c419223ced037f23eb1f6bdb3ba492b29·...·]-17">}</span><span·class="p">,</span><span·class="w"> |
| 239 | ····</span><span·class="p"·data-group-id=" | 239 | ····</span><span·class="p"·data-group-id="3747544438-20">{</span><span·class="ss">n_drivers_per_node</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">10</span><span·class="p"·data-group-id="3747544438-20">}</span><span·class="p">,</span><span·class="w">·</span><span·class="p"[·...·truncated·by·diffoscope;·len:·465,·SHA:·4c3da2803295005ba9617cd61508169959357321f7cadf9a947560b61712034a·...·]-22">}</span><span·class="p">,</span><span·class="w"> |
| 240 | ····</span><span·class="p"·data-group-id=" | 240 | ····</span><span·class="p"·data-group-id="3747544438-23">{</span><span·class="ss">replica_type</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">ram_copies</span><span·class="p"·data-group-id="3747544438-23">}</span><span·class="p">,</span><span·class="w">·</span><span·class="[·...·truncated·by·diffoscope;·len:·519,·SHA:·baf5557df4976be16bca12014eb7612085e72fbfe74fb4fa47f6b49c13546206·...·]-10">]</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">ok</span><span·class="p">.</span><span·class="w"> |
| 241 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> | 241 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> |
| 242 | 2>·</span><span·class="nc">mnesia_tpcb</span><span·class="p">:</span><span·class="nf">init</span><span·class="p"·data-group-id=" | 242 | 2>·</span><span·class="nc">mnesia_tpcb</span><span·class="p">:</span><span·class="nf">init</span><span·class="p"·data-group-id="3747544438-26">(</span><span·class="p"·data-group-id="3747544438-27">[</span><span·class="p"·data-group-id="3747544438-28">{</span><span·class="ss">use_running_mnesia</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">false</span><span·[·...·truncated·by·diffoscope;·len:·194,·SHA:·aa7d1149e774b7d5755538f68a2480a9210643b63c65a0d5e40a7e7ffcba478e·...·]-26">)</span><span·class="p">.</span><span·class="w"> |
| 243 | ····</span><span·class="p">.</span><span·class="w"> | 243 | ····</span><span·class="p">.</span><span·class="w"> |
| 244 | ····</span><span·class="p">.</span><span·class="w"> | 244 | ····</span><span·class="p">.</span><span·class="w"> |
| 245 | ····</span><span·class="p">.</span><span·class="w"> | 245 | ····</span><span·class="p">.</span><span·class="w"> |
| 246 | </span><span·class="ss">ignore</span></code></pre><p>Initial·configuring·of·the·benchmark·is·done.·It·is·time·to·profile·the·actual | 246 | </span><span·class="ss">ignore</span></code></pre><p>Initial·configuring·of·the·benchmark·is·done.·It·is·time·to·profile·the·actual |
| 247 | Mnesia·benchmark:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">3>·</span><span·class="nc">lcnt</span><span·class="p">:</span><span·class="nf">apply</span><span·class="p"·data-group-id=" | 247 | Mnesia·benchmark:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">3>·</span><span·class="nc">lcnt</span><span·class="p">:</span><span·class="nf">apply</span><span·class="p"·data-group-id="3592579338-1">(</span><span·class="nf">fun</span><span·class="p"·data-group-id="3592579338-2">(</span><span·class="p"·data-group-id="3592579338-2">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="p"·data-grou[·...·truncated·by·diffoscope;·len:·836,·SHA:·16b27993734c23ada201f2ee205ebd8bd9ede3a5c655abb918c2c1fa45f4808d·...·]-7">{</span><span·class="ss">use_running_mnesia</span><span·class="p">,</span><span·class="w"> |
| 248 | ····</span><span·class="ss">true</span><span·class="p"·data-group-id=" | 248 | ····</span><span·class="ss">true</span><span·class="p"·data-group-id="3592579338-7">}</span><span·class="p">|</span><span·class="n">Conf</span><span·class="p"·data-group-id="3592579338-6">]</span><span·class="p"·data-group-id="3592579338-5">)</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Tps</span><sp[·...·truncated·by·diffoscope;·len:·138,·SHA:·78dce3de814b527592c1cd34ac47103c8b6e57b7114f1806eb575462790da381·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 249 | ······</span><span·class="p">.</span><span·class="w"> | 249 | ······</span><span·class="p">.</span><span·class="w"> |
| 250 | ······</span><span·class="p">.</span><span·class="w"> | 250 | ······</span><span·class="p">.</span><span·class="w"> |
| 251 | ······</span><span·class="p">.</span><span·class="w"> | 251 | ······</span><span·class="p">.</span><span·class="w"> |
| 252 | </span><span·class="mf">50204.666666666664</span></code></pre><p>The·benchmark·runs·for·60·seconds·(followed·by·verification·and | 252 | </span><span·class="mf">50204.666666666664</span></code></pre><p>The·benchmark·runs·for·60·seconds·(followed·by·verification·and |
| 253 | analysis),·and·then·returns·the·number·of·transactions·per·seconds.</p><pre><code·class="text">4>·lcnt:swap_pid_keys(). | 253 | analysis),·and·then·returns·the·number·of·transactions·per·seconds.</p><pre><code·class="text">4>·lcnt:swap_pid_keys(). |
| 254 | ok | 254 | ok |
| 255 | 5>·lcnt:conflicts(). | 255 | 5>·lcnt:conflicts(). |
| Offset 346, 71 lines modified | Offset 346, 71 lines modified | ||
| 346 | problematic·if·they·begin·to·have·conflicts·even·if·it·is·not·shown·in·a | 346 | problematic·if·they·begin·to·have·conflicts·even·if·it·is·not·shown·in·a |
| 347 | particular·test.</p><h2·id="the-big-bang-benchmark"·class="section-heading"> | 347 | particular·test.</p><h2·id="the-big-bang-benchmark"·class="section-heading"> |
| 348 | ··<a·href="#the-big-bang-benchmark"·class="hover-link"> | 348 | ··<a·href="#the-big-bang-benchmark"·class="hover-link"> |
| 349 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 349 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 350 | ··</a> | 350 | ··</a> |
| 351 | ··<span·class="text">The·Big·Bang·Benchmark</span> | 351 | ··<span·class="text">The·Big·Bang·Benchmark</span> |
| 352 | </h2> | 352 | </h2> |
| 353 | <pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 353 | <pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="9336775312-1">(</span><span·class="ss">big</span><span·class="p"·data-group-id="9336775312-1">)</span><span·class="p">.</span><span·class="w"> |
| 354 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 354 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="9336775312-2">(</span><span·class="p"·data-group-id="9336775312-3">[</span><span·class="ss">bang</span><span·class="p">/</span><span·class="mi">1</span><span·class="p"·data-group-id="9336775312-3">]</span><span·class="p"·data-group-id="9336775312-2">)</span><span·class="p">.</span><span·class="w"> |
| 355 | </span><span·class="nf">pinger</span><span·class="p"·data-group-id=" | 355 | </span><span·class="nf">pinger</span><span·class="p"·data-group-id="9336775312-4">(</span><span·class="p"·data-group-id="9336775312-5">[</span><span·class="p"·data-group-id="9336775312-5">]</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9336775312-6">[</span><span·class="p"·data-group-[·...·truncated·by·diffoscope;·len:·143,·SHA:·59cd925249082112bb597d5a946fb54297af35601b84688e3f476b374163ddda·...·]-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 356 | ····</span><span·class="k">receive</span><span·class="w"> | 356 | ····</span><span·class="k">receive</span><span·class="w"> |
| 357 | » </span><span·class="p"·data-group-id=" | 357 | » </span><span·class="p"·data-group-id="9336775312-7">{</span><span·class="ss">procs</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Procs</span><span·class="p">,</span><span·class="w">·</span><span·class="n">ReportTo</span><span·class="p"·data-group-id="9336775312-7">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 358 | » ····</span><span·class="nf">pinger</span><span·class="p"·data-group-id=" | 358 | » ····</span><span·class="nf">pinger</span><span·class="p"·data-group-id="9336775312-8">(</span><span·class="n">Procs</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9336775312-9">[</span><span·class="p"·data-group-id="9336775312-9">]</span><span·class="p">,</span><span·class="w">·</span><spa[·...·truncated·by·diffoscope;·len:·68,·SHA:·09495ae58f408638bd56f88d64dd8c3a4ae8923ac0cd0f23499c4141d373a1ae·...·]-8">)</span><span·class="w"> |
| 359 | ····</span><span·class="k">end</span><span·class="p">;</span><span·class="w"> | 359 | ····</span><span·class="k">end</span><span·class="p">;</span><span·class="w"> |
| 360 | </span><span·class="nf">pinger</span><span·class="p"·data-group-id=" | 360 | </span><span·class="nf">pinger</span><span·class="p"·data-group-id="9336775312-10">(</span><span·class="p"·data-group-id="9336775312-11">[</span><span·class="p"·data-group-id="9336775312-11">]</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9336775312-12">[</span><span·class="p"·data-gr[·...·truncated·by·diffoscope;·len:·149,·SHA:·99235d42efaba498f7dd85ddb33fd37378fa77871a671b9fb5518da4f19d83ac·...·]-10">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 361 | ····</span><span·class="k">receive</span><span·class="w">·</span><span·class="p"·data-group-id=" | 361 | ····</span><span·class="k">receive</span><span·class="w">·</span><span·class="p"·data-group-id="9336775312-13">{</span><span·class="ss">ping</span><span·class="p">,</span><span·class="w">·</span><span·class="n">From</span><span·class="p"·data-group-id="9336775312-13">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span>[·...·truncated·by·diffoscope;·len:·406,·SHA:·d5b4173a2f010d32dc553269712fe0f739383c24ec2b284164c3b2f985905576·...·]-14">}</span><span·class="w">·</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> |
| 362 | ····</span><span·class="nf">pinger</span><span·class="p"·data-group-id=" | 362 | ····</span><span·class="nf">pinger</span><span·class="p"·data-group-id="9336775312-16">(</span><span·class="p"·data-group-id="9336775312-17">[</span><span·class="p"·data-group-id="9336775312-17">]</span><span·class="p">,</span><span·class="p"·data-group-id="9336775312-18">[</span><span·class="p"·data-group-id="9336775312-18">][·...·truncated·by·diffoscope;·len:·101,·SHA:·fcf6917a683f3b2aa4e5b6f5f2f365a4f148d43949b8c538373a120c36ddd209·...·]-16">)</span><span·class="p">;</span><span·class="w"> |
| 363 | </span><span·class="nf">pinger</span><span·class="p"·data-group-id=" | 363 | </span><span·class="nf">pinger</span><span·class="p"·data-group-id="9336775312-19">(</span><span·class="p"·data-group-id="9336775312-20">[</span><span·class="p"·data-group-id="9336775312-20">]</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9336775312-21">[</span><span·class="p"·data-gr[·...·truncated·by·diffoscope;·len:·151,·SHA:·0897780303c0629fc9a5599c1663032db248f53815552c8d1e42e16756df7f8a·...·]-19">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 364 | ····</span><span·class="n">ReportTo</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id=" | 364 | ····</span><span·class="n">ReportTo</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id="9336775312-22">{</span><span·class="ss">done</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">self</span><span·class="p"·data-group-id="9336775312-23">(</span><span·class="p"·data-group-id="9336775312-23">)</span><span·class="p"·data-[·...·truncated·by·diffoscope;·len:·20,·SHA:·f77bea75c509a131326fe7153ea80480e981d72b21fde663c0fdc90d84de1cd8·...·]-22">}</span><span·class="p">,</span><span·class="w"> |
| 365 | ····</span><span·class="nf">pinger</span><span·class="p"·data-group-id=" | 365 | ····</span><span·class="nf">pinger</span><span·class="p"·data-group-id="9336775312-24">(</span><span·class="p"·data-group-id="9336775312-25">[</span><span·class="p"·data-group-id="9336775312-25">]</span><span·class="p">,</span><span·class="p"·data-group-id="9336775312-26">[</span><span·class="p"·data-group-id="9336775312-26">][·...·truncated·by·diffoscope;·len:·101,·SHA:·fcf6917a683f3b2aa4e5b6f5f2f365a4f148d43949b8c538373a120c36ddd209·...·]-24">)</span><span·class="p">;</span><span·class="w"> |
| 366 | </span><span·class="nf">pinger</span><span·class="p"·data-group-id=" | 366 | </span><span·class="nf">pinger</span><span·class="p"·data-group-id="9336775312-27">(</span><span·class="p"·data-group-id="9336775312-28">[</span><span·class="p"·data-group-id="9336775312-28">]</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9336775312-29">[</span><span·class="n">Po</spa[·...·truncated·by·diffoscope;·len:·328,·SHA:·42867990232acebee43527e02bf6ab22df2582b17eb4d2b10ee0987fafcec8c6·...·]-27">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 367 | ····</span><span·class="k">receive</span><span·class="w"> | 367 | ····</span><span·class="k">receive</span><span·class="w"> |
| 368 | » </span><span·class="p"·data-group-id=" | 368 | » </span><span·class="p"·data-group-id="9336775312-30">{</span><span·class="ss">ping</span><span·class="p">,</span><span·class="w">·</span><span·class="n">From</span><span·class="p"·data-group-id="9336775312-30">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 369 | » ····</span><span·class="n">From</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id=" | 369 | » ····</span><span·class="n">From</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id="9336775312-31">{</span><span·class="ss">pong</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">self</span><span·class="p"·data-group-id="9336775312-32">(</span><span·class="p"·data-group-id="9336775312-32">)</span><span·class="p"·data-[·...·truncated·by·diffoscope;·len:·20,·SHA:·f77bea75c509a131326fe7153ea80480e981d72b21fde663c0fdc90d84de1cd8·...·]-31">}</span><span·class="p">,</span><span·class="w"> |
| 370 | » ····</span><span·class="nf">pinger</span><span·class="p"·data-group-id="5103361153-33">(</span><span·class="p"·data-group-id="5103361153-34">[</span><span·class="p"·data-group-id="5103361153-34">]</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Pongers</span><span·class="p">,</span><span·class="w">·</span><span·class="n">ReportTo</span><span·class="p"·data-group-id="5103361153-33">)</span><span·class="p">;</span><span·class="w"> | ||
| 371 | » </span><span·class="p"·data-group-id="5103361153-35">{</span><span·class="ss">pong</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Po</span><span·class="p"·data-group-id="5103361153-35">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | ||
| 372 | » ····</span><span·class="nf">pinger</span><span·class="p"·data-group-id=" | 370 | » ····</span><span·class="nf">pinger</span><span·class="p"·data-group-id="9336775312-33">(</span><span·class="p"·data-group-id="9336775312-34">[</span><span·class="p"·data-group-id="9336775312-34">]</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Pongers</span><span·class="p">,</span><span·class="w">·</span[·...·truncated·by·diffoscope;·len:·103,·SHA:·e5a7e56e05f8b585276689bcc943a3ac038ba7dde2636f6989f34abcf83ed03d·...·]</span><span·class="w"> |
| 371 | » </span><span·class="p"·data-group-id="9336775312-35">{</span><span·class="ss">pong</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Po</span><span·class="p"·data-group-id="9336775312-35">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | ||
| 372 | » ····</span><span·class="nf">pinger</span><span·class="p"·data-group-id="9336775312-36">(</span><span·class="p"·data-group-id="9336775312-37">[</span><span·class="p"·data-group-id="9336775312-37">]</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Pos</span><span·class="p">,</span><span·class="w">·</span><span·class="n">ReportTo</span><span·class="p"·data-group-id="9336775312-36">)</span><span·class="w"> | ||
| 373 | ····</span><span·class="k">end</span><span·class="p">;</span><span·class="w"> | 373 | ····</span><span·class="k">end</span><span·class="p">;</span><span·class="w"> |
| 374 | </span><span·class="nf">pinger</span><span·class="p"·data-group-id=" | 374 | </span><span·class="nf">pinger</span><span·class="p"·data-group-id="9336775312-38">(</span><span·class="p"·data-group-id="9336775312-39">[</span><span·class="n">Pi</span><span·class="p">|</span><span·class="n">Pis</span><span·class="p"·data-group-id="9336775312-39">]</span><span·class="p">,</span><span·class="w">·</span><s[·...·truncated·by·diffoscope;·len:·148,·SHA:·707a6f743973f462cf20c095524a1eed54294fd4f0f83d8fa2ad5786407a6a94·...·]-38">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 375 | ····</span><span·class="k">receive</span><span·class="w">·</span><span·class="p"·data-group-id=" | 375 | ····</span><span·class="k">receive</span><span·class="w">·</span><span·class="p"·data-group-id="9336775312-40">{</span><span·class="ss">ping</span><span·class="p">,</span><span·class="w">·</span><span·class="n">From</span><span·class="p"·data-group-id="9336775312-40">}</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span>[·...·truncated·by·diffoscope;·len:·406,·SHA:·70c39a0d61dca3f6d132a24870b2ae1725cdc4819ad8bb03bb5a411c3d507b7c·...·]-41">}</span><span·class="w"> |
| 376 | ····</span><span·class="k">after</span><span·class="w">·</span><span·class="mi">0</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">ok</span><span·class="w"> | 376 | ····</span><span·class="k">after</span><span·class="w">·</span><span·class="mi">0</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">ok</span><span·class="w"> |
| 377 | ····</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> | 377 | ····</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> |
| 378 | ····</span><span·class="n">Pi</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id=" | 378 | ····</span><span·class="n">Pi</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="p"·data-group-id="9336775312-43">{</span><span·class="ss">ping</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">self</span><span·class="p"·data-group-id="9336775312-44">(</span><span·class="p"·data-group-id="9336775312-44">)</span><span·class="p"·data-[·...·truncated·by·diffoscope;·len:·20,·SHA:·f77bea75c509a131326fe7153ea80480e981d72b21fde663c0fdc90d84de1cd8·...·]-43">}</span><span·class="p">,</span><span·class="w"> |
| 379 | ····</span><span·class="nf">pinger</span><span·class="p"·data-group-id=" | 379 | ····</span><span·class="nf">pinger</span><span·class="p"·data-group-id="9336775312-45">(</span><span·class="n">Pis</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9336775312-46">[</span><span·class="n">Pi</span><span·class="p">|</span><span·class="n">Pongers</span><span·class="p"·data-group[·...·truncated·by·diffoscope;·len:·148,·SHA:·12da17e0c7a2753f59c513c3fc7ffe4a88c448405568a932a90f9a76717743c7·...·]-45">)</span><span·class="p">.</span><span·class="w"> |
| 380 | </span><span·class="nf">spawn_procs</span><span·class="p"·data-group-id=" | 380 | </span><span·class="nf">spawn_procs</span><span·class="p"·data-group-id="9336775312-47">(</span><span·class="n">N</span><span·class="p"·data-group-id="9336775312-47">)</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><span·class="n">N</span><span·class="w">·</span><span·class="o">=<</span><span·class="w">·</span><span·class="mi">0</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 381 | ····</span><span·class="p"·data-group-id=" | 381 | ····</span><span·class="p"·data-group-id="9336775312-48">[</span><span·class="p"·data-group-id="9336775312-48">]</span><span·class="p">;</span><span·class="w"> |
| 382 | </span><span·class="nf">spawn_procs</span><span·class="p"·data-group-id=" | 382 | </span><span·class="nf">spawn_procs</span><span·class="p"·data-group-id="9336775312-49">(</span><span·class="n">N</span><span·class="p"·data-group-id="9336775312-49">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 383 | ····</span><span·class="p"·data-group-id=" | 383 | ····</span><span·class="p"·data-group-id="9336775312-50">[</span><span·class="nf">spawn_link</span><span·class="p"·data-group-id="9336775312-51">(</span><span·class="nf">fun</span><span·class="w">·</span><span·class="p"·data-group-id="9336775312-52">(</span><span·class="p"·data-group-id="933677531[·...·truncated·by·diffoscope;·len:·953,·SHA:·da35666ef0df70369595a2edeef955c42c0823a6faea7dfa58aaefb4356b24b1·...·]-50">]</span><span·class="p">.</span><span·class="w"> |
| 384 | </span><span·class="nf">send_procs</span><span·class="p"·data-group-id=" | 384 | </span><span·class="nf">send_procs</span><span·class="p"·data-group-id="9336775312-57">(</span><span·class="p"·data-group-id="9336775312-58">[</span><span·class="p"·data-group-id="9336775312-58">]</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Msg</span><span·class="p"·data-group-id="9336775312-57">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 385 | ····</span><span·class="n">Msg</span><span·class="p">;</span><span·class="w"> | 385 | ····</span><span·class="n">Msg</span><span·class="p">;</span><span·class="w"> |
| 386 | </span><span·class="nf">send_procs</span><span·class="p"·data-group-id=" | 386 | </span><span·class="nf">send_procs</span><span·class="p"·data-group-id="9336775312-59">(</span><span·class="p"·data-group-id="9336775312-60">[</span><span·class="n">P</span><span·class="p">|</span><span·class="n">Ps</span><span·class="p"·data-group-id="9336775312-60">]</span><span·class="p">,</span><span·class="w">·</span><spa[·...·truncated·by·diffoscope;·len:·63,·SHA:·7ea951a7b4d6c68c2b98902f5aab8b4005f7d8ae638406e3457c40c1229a9fea·...·]-59">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 387 | ····</span><span·class="n">P</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="n">Msg</span><span·class="p">,</span><span·class="w"> | 387 | ····</span><span·class="n">P</span><span·class="w">·</span><span·class="o">!</span><span·class="w">·</span><span·class="n">Msg</span><span·class="p">,</span><span·class="w"> |
| 388 | ····</span><span·class="nf">send_procs</span><span·class="p"·data-group-id=" | 388 | ····</span><span·class="nf">send_procs</span><span·class="p"·data-group-id="9336775312-61">(</span><span·class="n">Ps</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Msg</span><span·class="p"·data-group-id="9336775312-61">)</span><span·class="p">.</span><span·class="w"> |
| 389 | </span><span·class="nf">receive_msgs</span><span·class="p"·data-group-id=" | 389 | </span><span·class="nf">receive_msgs</span><span·class="p"·data-group-id="9336775312-62">(</span><span·class="p"·data-group-id="9336775312-63">[</span><span·class="p"·data-group-id="9336775312-63">]</span><span·class="p"·data-group-id="9336775312-62">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 390 | ····</span><span·class="ss">ok</span><span·class="p">;</span><span·class="w"> | 390 | ····</span><span·class="ss">ok</span><span·class="p">;</span><span·class="w"> |
| 391 | </span><span·class="nf">receive_msgs</span><span·class="p"·data-group-id=" | 391 | </span><span·class="nf">receive_msgs</span><span·class="p"·data-group-id="9336775312-64">(</span><span·class="p"·data-group-id="9336775312-65">[</span><span·class="n">M</span><span·class="p">|</span><span·class="n">Ms</span><span·class="p"·data-group-id="9336775312-65">]</span><span·class="p"·data-group-id="9336775312-64">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 392 | ····</span><span·class="k">receive</span><span·class="w"> | 392 | ····</span><span·class="k">receive</span><span·class="w"> |
| 393 | » </span><span·class="n">M</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 393 | » </span><span·class="n">M</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 394 | » ····</span><span·class="nf">receive_msgs</span><span·class="p"·data-group-id=" | 394 | » ····</span><span·class="nf">receive_msgs</span><span·class="p"·data-group-id="9336775312-66">(</span><span·class="n">Ms</span><span·class="p"·data-group-id="9336775312-66">)</span><span·class="w"> |
| 395 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> | 395 | ····</span><span·class="k">end</span><span·class="p">.</span><span·class="w"> |
| 396 | </span><span·class="nf">bang</span><span·class="p"·data-group-id=" | 396 | </span><span·class="nf">bang</span><span·class="p"·data-group-id="9336775312-67">(</span><span·class="n">N</span><span·class="p"·data-group-id="9336775312-67">)</span><span·class="w">·</span><span·class="k">when</span><span·class="w">·</span><span·class="nf">integer</span><span·class="p"·data-group-id="9336775312-68">(</[·...·truncated·by·diffoscope;·len:·70,·SHA:·773865e18d17e08120b7c1f501f07bef27e2eaf6fe9fce27b44f8c59a95304ed·...·]-68">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 397 | ····</span><span·class="n">Procs</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">spawn_procs</span><span·class="p"·data-group-id=" | 397 | ····</span><span·class="n">Procs</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">spawn_procs</span><span·class="p"·data-group-id="9336775312-69">(</span><span·class="n">N</span><span·class="p"·data-group-id="9336775312-69">)</span><span·class="p">,</span><span·class="w"> |
| 398 | ····</span><span·class="n">RMsgs</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">map</span><span·class="p"·data-group-id=" | 398 | ····</span><span·class="n">RMsgs</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">map</span><span·class="p"·data-group-id="9336775312-70">(</span><span·class="nf">fun</span><span·class="w">·</span><span·class="p"·data-group-id="9336775312-71">(</span><span·class="n">P</span><span·class="p"·data-group-id="9336775312-71">)</span><span·class="w">·</span><span·class="p">-></spa[·...·truncated·by·diffoscope;·len:·401,·SHA:·25bdc69f34e768f1a79a33e56b21beff8eec651dc87b72a143230a1dfc5ea367·...·]-70">)</span><span·class="p">,</span><span·class="w"> |
| 399 | ····</span><span·class="n">Start</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">now</span><span·class="p"·data-group-id=" | 399 | ····</span><span·class="n">Start</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">now</span><span·class="p"·data-group-id="9336775312-73">(</span><span·class="p"·data-group-id="9336775312-73">)</span><span·class="p">,</span><span·class="w"> |
| 400 | ····</span><span·class="nf">send_procs</span><span·class="p"·data-group-id=" | 400 | ····</span><span·class="nf">send_procs</span><span·class="p"·data-group-id="9336775312-74">(</span><span·class="n">Procs</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="9336775312-75">{</span><span·class="ss">procs</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Procs</spa[·...·truncated·by·diffoscope;·len:·281,·SHA:·01d0ccde66c46fd664b7a14b08cd3948587c8fb504118343d51b36a98cccb214·...·]-74">)</span><span·class="p">,</span><span·class="w"> |
| 401 | ····</span><span·class="nf">receive_msgs</span><span·class="p"·data-group-id=" | 401 | ····</span><span·class="nf">receive_msgs</span><span·class="p"·data-group-id="9336775312-77">(</span><span·class="n">RMsgs</span><span·class="p"·data-group-id="9336775312-77">)</span><span·class="p">,</span><span·class="w"> |
| 402 | ····</span><span·class="n">Stop</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">now</span><span·class="p"·data-group-id=" | 402 | ····</span><span·class="n">Stop</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">now</span><span·class="p"·data-group-id="9336775312-78">(</span><span·class="p"·data-group-id="9336775312-78">)</span><span·class="p">,</span><span·class="w"> |
| 403 | ····</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">foreach</span><span·class="p"·data-group-id=" | 403 | ····</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">foreach</span><span·class="p"·data-group-id="9336775312-79">(</span><span·class="nf">fun</span><span·class="w">·</span><span·class="p"·data-group-id="9336775312-80">(</span><span·class="n">P</span><span·class="p"·data-group-id="9336775312-80">)</span><span·class="w">·</span><span·class="p">-></spa[·...·truncated·by·diffoscope;·len:·431,·SHA:·6368dea02b9c48cca8dc0f7a2d568e3e06812d1b20fe44e9dea85f4b2ed06efd·...·]-79">)</span><span·class="p">,</span><span·class="w"> |
| 404 | ····</span><span·class="nc">timer</span><span·class="p">:</span><span·class="nf">now_diff</span><span·class="p"·data-group-id=" | 404 | ····</span><span·class="nc">timer</span><span·class="p">:</span><span·class="nf">now_diff</span><span·class="p"·data-group-id="9336775312-82">(</span><span·class="n">Stop</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Start</span><span·class="p"·data-group-id="9336775312-82">)</span><span·class="p">.</span></code></pre><h2·id="see-also"·class="section-heading"> |
| 405 | ··<a·href="#see-also"·class="hover-link"> | 405 | ··<a·href="#see-also"·class="hover-link"> |
| 406 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 406 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 407 | ··</a> | 407 | ··</a> |
| 408 | ··<span·class="text">See·Also</span> | 408 | ··<span·class="text">See·Also</span> |
| 409 | </h2> | 409 | </h2> |
| 410 | <p><a·href="lcnt.html">LCNT·Reference·Manual</a></p> | 410 | <p><a·href="lcnt.html">LCNT·Reference·Manual</a></p> |
| 411 | </div> | 411 | </div> |
| Offset 459, 15 lines modified | Offset 459, 15 lines modified | ||
| 459 | ······<p·class="built-using"> | 459 | ······<p·class="built-using"> |
| 460 | ········Built·using | 460 | ········Built·using |
| 461 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 461 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 462 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 462 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 463 | ······</p> | 463 | ······</p> |
| 464 | <p>Copyright·©·1996-202 | 464 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 465 | ····</footer> | 465 | ····</footer> |
| 466 | ··</div> | 466 | ··</div> |
| 467 | </main> | 467 | </main> |
| 468 | </div> | 468 | </div> |
| 469 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 469 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 470 | ··<script> | 470 | ··<script> |
| 471 | ··let·initialized·=·false; | 471 | ··let·initialized·=·false; |
| Offset 138, 16 lines modified | Offset 138, 16 lines modified | ||
| 138 | <p><a·href="#all/1"><code·class="inline">make:all/0,1</code></a>·and·<a·href="#files/2"><code·class="inline">make:files/1,2</code></a>·first·looks·for | 138 | <p><a·href="#all/1"><code·class="inline">make:all/0,1</code></a>·and·<a·href="#files/2"><code·class="inline">make:files/1,2</code></a>·first·looks·for |
| 139 | <code·class="inline">{emake,·Emake}</code>·in·options,·then·in·the·current·working·directory·for·a·file | 139 | <code·class="inline">{emake,·Emake}</code>·in·options,·then·in·the·current·working·directory·for·a·file |
| 140 | named·<code·class="inline">Emakefile</code>.·If·present·<code·class="inline">Emake</code>·should·contain·elements·like·this:</p><pre><code·class="text">Modules. | 140 | named·<code·class="inline">Emakefile</code>.·If·present·<code·class="inline">Emake</code>·should·contain·elements·like·this:</p><pre><code·class="text">Modules. |
| 141 | {Modules,Options}.</code></pre><p><code·class="inline">Modules</code>·is·an·atom·or·a·list·of·atoms.·It·can·be</p><ul><li>a·module·name,·for·exmaple,··<code·class="inline">file1</code></li><li>a·module·name·in·another·directory,·for·exmaple,·<code·class="inline">'../foo/file3'</code></li><li>a·set·of·modules·specified·with·a·wildcards,·for·exmaple,·<code·class="inline">'file*'</code></li><li>a·wildcard·indicating·all·modules·in·current·directory,·that·is:·<code·class="inline">'*'</code></li><li>a·list·of·any·of·the·above,·for·exmaple,·<code·class="inline">['file*','../foo/file3','File4']</code></li></ul><p><code·class="inline">Options</code>·is·a·list·of·compiler·options.</p><p><code·class="inline">Emakefile</code>·is·read·from·top·to·bottom.·If·a·module·matches·more·than·one·entry, | 141 | {Modules,Options}.</code></pre><p><code·class="inline">Modules</code>·is·an·atom·or·a·list·of·atoms.·It·can·be</p><ul><li>a·module·name,·for·exmaple,··<code·class="inline">file1</code></li><li>a·module·name·in·another·directory,·for·exmaple,·<code·class="inline">'../foo/file3'</code></li><li>a·set·of·modules·specified·with·a·wildcards,·for·exmaple,·<code·class="inline">'file*'</code></li><li>a·wildcard·indicating·all·modules·in·current·directory,·that·is:·<code·class="inline">'*'</code></li><li>a·list·of·any·of·the·above,·for·exmaple,·<code·class="inline">['file*','../foo/file3','File4']</code></li></ul><p><code·class="inline">Options</code>·is·a·list·of·compiler·options.</p><p><code·class="inline">Emakefile</code>·is·read·from·top·to·bottom.·If·a·module·matches·more·than·one·entry, |
| 142 | the·first·match·is·used.·For·example,·the·following·<code·class="inline">Emakefile</code>·means·that | 142 | the·first·match·is·used.·For·example,·the·following·<code·class="inline">Emakefile</code>·means·that |
| 143 | <code·class="inline">file1</code>·should·be·compiled·with·the·options·<code·class="inline">[debug_info,{i,"../foo"}]</code>,·while | 143 | <code·class="inline">file1</code>·should·be·compiled·with·the·options·<code·class="inline">[debug_info,{i,"../foo"}]</code>,·while |
| 144 | all·other·files·in·the·current·directory·should·be·compiled·with·only·the | 144 | all·other·files·in·the·current·directory·should·be·compiled·with·only·the |
| 145 | <code·class="inline">debug_info</code>·flag.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="7405367362-1">{</span><span·class="ss">'file1'</span><span·class="p">,</span><span·class="p"·data-group-id="7405367362-2">[</span><span·class="ss">debug_info</span><span·class="p">,</span><span·class="p"·data-group-id="7405367362-3">{</span><span·class="ss">i</span><span·class="p">,</span><span·class="s">"../foo"</span><span·class="p"·data-group-id="7405367362-3">}</span><span·class="p"·data-group-id="7405367362-2">]</span><span·class="p"·data-group-id="7405367362-1">}</span><span·class="p">.</span><span·class="w"> | ||
| 146 | < | 145 | <code·class="inline">debug_info</code>·flag.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="2824633255-1">{</span><span·class="ss">'file1'</span><span·class="p">,</span><span·class="p"·data-group-id="2824633255-2">[·...·truncated·by·diffoscope;·len:·406,·SHA:·7bd1d85f92892ece98fcd510a07d7d95b2e8b63fe685161922bb6e38c4efef2b·...·]"> |
| 146 | </span><span·class="p"·data-group-id="2824633255-4">{</span><span·class="ss">'*'</span><span·class="p">,</span><span·class="p"·data-group-id="2824633255-5">[</span><span·class="ss">debug_info</span><span·class="p"·data-group-id="2824633255-5">]</span><span·class="p"·data-group-id="2824633255-4">}</span><span·class="p">.</span></code></pre><h2·id="module-see-also"·class="section-heading"> | ||
| 147 | ··<a·href="#module-see-also"·class="hover-link"> | 147 | ··<a·href="#module-see-also"·class="hover-link"> |
| 148 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 148 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 149 | ··</a> | 149 | ··</a> |
| 150 | ··<span·class="text">See·Also</span> | 150 | ··<span·class="text">See·Also</span> |
| 151 | </h2> | 151 | </h2> |
| 152 | <p><a·href="../../../../lib/compiler-9.0/doc/html/compile.html">The·Compiler·Application</a></p> | 152 | <p><a·href="../../../../lib/compiler-9.0/doc/html/compile.html">The·Compiler·Application</a></p> |
| 153 | ····</section> | 153 | ····</section> |
| Offset 378, 15 lines modified | Offset 378, 15 lines modified | ||
| 378 | ······<p·class="built-using"> | 378 | ······<p·class="built-using"> |
| 379 | ········Built·using | 379 | ········Built·using |
| 380 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 380 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 381 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 381 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 382 | ······</p> | 382 | ······</p> |
| 383 | <p>Copyright·©·1996-202 | 383 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 384 | ····</footer> | 384 | ····</footer> |
| 385 | ··</div> | 385 | ··</div> |
| 386 | </main> | 386 | </main> |
| 387 | </div> | 387 | </div> |
| 388 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 388 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 389 | ··<script> | 389 | ··<script> |
| 390 | ··let·initialized·=·false; | 390 | ··let·initialized·=·false; |
| Offset 181, 51 lines modified | Offset 181, 51 lines modified | ||
| 181 | </h2> | 181 | </h2> |
| 182 | <h3·id="fixed-bugs-and-malfunctions-3"·class="section-heading"> | 182 | <h3·id="fixed-bugs-and-malfunctions-3"·class="section-heading"> |
| 183 | ··<a·href="#fixed-bugs-and-malfunctions-3"·class="hover-link"> | 183 | ··<a·href="#fixed-bugs-and-malfunctions-3"·class="hover-link"> |
| 184 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 184 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 185 | ··</a> | 185 | ··</a> |
| 186 | ··<span·class="text">Fixed·Bugs·and·Malfunctions</span> | 186 | ··<span·class="text">Fixed·Bugs·and·Malfunctions</span> |
| 187 | </h3> | 187 | </h3> |
| 188 | <ul><li><p>Dialyzer·warnings·due·to·type·specs·added·in·<a·href="../../../../lib/runtime_tools-2.2/doc/html/dbg.html"><code·class="inline">dbg</code></a>·have·been·eliminated.</p><p>Own·Id:·OTP-18860</p></li><li><p>In·Erlang/OTP·26,·doing·a·<a·href="cover.html"><code·class="inline">cover</code></a>·analysis·on·the·<code·class="inline">line</code>·level·would·return·multiple·entries·for·lines·on·which·multiple·functions·were·defined.</p><p>For·example,·consider·this·module:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 188 | <ul><li><p>Dialyzer·warnings·due·to·type·specs·added·in·<a·href="../../../../lib/runtime_tools-2.2/doc/html/dbg.html"><code·class="inline">dbg</code></a>·have·been·eliminated.</p><p>Own·Id:·OTP-18860</p></li><li><p>In·Erlang/OTP·26,·doing·a·<a·href="cover.html"><code·class="inline">cover</code></a>·analysis·on·the·<code·class="inline">line</code>·level·would·return·multiple·entries·for·lines·on·which·multiple·functions·were·defined.</p><p>For·example,·consider·this·module:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="9214115033-1">(</span><span·class="ss">foo</span><span·class="p"·data-group-id="9214115033-1">)</span><span·class="p">.</span><span·class="w"> |
| 189 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 189 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="9214115033-2">(</span><span·class="p"·data-group-id="9214115033-3">[</span><span·class="ss">bar</span><span·class="p">/</span><span·class="mi">0</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">baz</span><span·class="p">/</span><span·[·...·truncated·by·diffoscope;·len:·112,·SHA:·fc9cd385f73ce8c888c08b731fe62d61c29153bc3913cfe9217541219e275279·...·]3-2">)</span><span·class="p">.</span><span·class="w"> |
| 190 | </span><span·class="nf">bar</span><span·class="p"·data-group-id=" | 190 | </span><span·class="nf">bar</span><span·class="p"·data-group-id="9214115033-4">(</span><span·class="p"·data-group-id="9214115033-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">ok</span><span·class="p">.</span><span·class="w">·</span><span·class="nf">baz</span><spa[·...·truncated·by·diffoscope;·len:·89,·SHA:·ac2e537080488fcc8f87ab057438ab22573c9d814fff7c790d3e77220ec2841e·...·]3-5">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="ss">not_ok</span><span·class="p">.</span></code></pre><p>In·Erlang/OTP·26,·analysing·on·the·<code·class="inline">line</code>·level·would·return·two·entries |
| 191 | for·line·4:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">cover</span><span·class="p">:</span><span·class="nf">compile_module</span><span·class="p"·data-group-id=" | 191 | for·line·4:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">cover</span><span·class="p">:</span><span·class="nf">compile_module</span><span·class="p"·data-group-id="7414707316-1">(</span><span·class="ss">foo</span><span·class="p"·data-group-id="7414707316-1">)</span><span·class="p">.</span><span·class="w"> |
| 192 | </span><span·class="p"·data-group-id=" | 192 | </span><span·class="p"·data-group-id="7414707316-2">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="ss">foo</span><span·class="p"·data-group-id="7414707316-2">}</span><span·class="gp·unselectable"> |
| 193 | 2>·</span><span·class="nc">foo</span><span·class="p">:</span><span·class="nf">bar</span><span·class="p"·data-group-id=" | 193 | 2>·</span><span·class="nc">foo</span><span·class="p">:</span><span·class="nf">bar</span><span·class="p"·data-group-id="7414707316-3">(</span><span·class="p"·data-group-id="7414707316-3">)</span><span·class="p">.</span><span·class="w"> |
| 194 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> | 194 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> |
| 195 | 3>·</span><span·class="nc">cover</span><span·class="p">:</span><span·class="nf">analyse</span><span·class="p"·data-group-id=" | 195 | 3>·</span><span·class="nc">cover</span><span·class="p">:</span><span·class="nf">analyse</span><span·class="p"·data-group-id="7414707316-4">(</span><span·class="ss">foo</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">coverage</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">line</span><span·class="p"·data-group-id="7414707316-4">)</span><span·class="p">.</span><span·class="w"> |
| 196 | </span><span·class="p"·data-group-id=" | 196 | </span><span·class="p"·data-group-id="7414707316-5">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="p"·data-group-id="7414707316-6">[</span><span·class="p"·data-group-id="7414707316-7">{</span><span·class="p"·data-group-id="7414707316-8">{</span><span·class="ss">foo</spa[·...·truncated·by·diffoscope;·len:·977,·SHA:·a3f0cf9147b4f57569fa6e2c6924673245bcd6f78b5ab23346dffe901166b5f2·...·]-5">}</span><span·class="gp·unselectable"> |
| 197 | 4>·</span><span·class="nc">cover</span><span·class="p">:</span><span·class="nf">analyse</span><span·class="p"·data-group-id=" | 197 | 4>·</span><span·class="nc">cover</span><span·class="p">:</span><span·class="nf">analyse</span><span·class="p"·data-group-id="7414707316-13">(</span><span·class="ss">foo</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">calls</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">line</span><span·class="p"·data-group-id="7414707316-13">)</span><span·class="p">.</span><span·class="w"> |
| 198 | </span><span·class="p"·data-group-id=" | 198 | </span><span·class="p"·data-group-id="7414707316-14">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="p"·data-group-id="7414707316-15">[</span><span·class="p"·data-group-id="7414707316-16">{</span><span·class="p"·data-group-id="7414707316-17">{</span><span·class="ss">foo<[·...·truncated·by·diffoscope;·len:·1071,·SHA:·bd8b6c574f0694aca5908447fe0b810bc193001cbba555ef0704af03110bdf9c·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 199 | </span><span·class="p"·data-group-id=" | 199 | </span><span·class="p"·data-group-id="2887364155-2">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="ss">foo</span><span·class="p"·data-group-id="2887364155-2">}</span><span·class="gp·unselectable"> |
| 200 | 2>·</span><span·class="nc">foo</span><span·class="p">:</span><span·class="nf">bar</span><span·class="p"·data-group-id=" | 200 | 2>·</span><span·class="nc">foo</span><span·class="p">:</span><span·class="nf">bar</span><span·class="p"·data-group-id="2887364155-3">(</span><span·class="p"·data-group-id="2887364155-3">)</span><span·class="p">.</span><span·class="w"> |
| 201 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> | 201 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> |
| 202 | 3>·</span><span·class="nc">cover</span><span·class="p">:</span><span·class="nf">analyse</span><span·class="p"·data-group-id=" | 202 | 3>·</span><span·class="nc">cover</span><span·class="p">:</span><span·class="nf">analyse</span><span·class="p"·data-group-id="2887364155-4">(</span><span·class="ss">foo</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">coverage</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">line</span><span·class="p"·data-group-id="2887364155-4">)</span><span·class="p">.</span><span·class="w"> |
| 203 | </span><span·class="p"·data-group-id=" | 203 | </span><span·class="p"·data-group-id="2887364155-5">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="p"·data-group-id="2887364155-6">[</span><span·class="p"·data-group-id="2887364155-7">{</span><span·class="p"·data-group-id="2887364155-8">{</span><span·class="ss">foo</spa[·...·truncated·by·diffoscope;·len:·455,·SHA:·85c34770cf2a985ffb1512a3b023c79d5522bad715cbd27e7d485278da1295cb·...·]-5">}</span><span·class="gp·unselectable"> |
| 204 | 4>·</span><span·class="nc">cover</span><span·class="p">:</span><span·class="nf">analyse</span><span·class="p"·data-group-id=" | 204 | 4>·</span><span·class="nc">cover</span><span·class="p">:</span><span·class="nf">analyse</span><span·class="p"·data-group-id="2887364155-10">(</span><span·class="ss">foo</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">calls</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">line</span><span·class="p"·data-group-id="2887364155-10">)</span><span·class="p">.</span><span·class="w"> |
| 205 | </span><span·class="p"·data-group-id=" | 205 | </span><span·class="p"·data-group-id="2887364155-11">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="p"·data-group-id="2887364155-12">[</span><span·class="p"·data-group-id="2887364155-13">{</span><span·class="p"·data-group-id="2887364155-14">{</span><span·class="ss">foo<[·...·truncated·by·diffoscope;·len:·307,·SHA:·71fd679eb7c5aaf60bf2307ffa3e699eb1224c8479e0839cd5c5bd80ecfa2686·...·]-11">}</span></code></pre><p>Own·Id:·OTP-18998·Aux·Id:·<a·href="https://github.com/erlang/otp/issues/8159"·title="">GH-8159</a>,·<a·href="https://github.com/erlang/otp/pull/8182"·title="">PR-8182</a></p></li><li><p>Fixed·align·command·in·emacs·mode.</p><p>Own·Id:·OTP-19026·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8155"·title="">PR-8155</a></p></li></ul><h3·id="improvements-and-new-features-2"·class="section-heading"> |
| 206 | ··<a·href="#improvements-and-new-features-2"·class="hover-link"> | 206 | ··<a·href="#improvements-and-new-features-2"·class="hover-link"> |
| 207 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 207 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 208 | ··</a> | 208 | ··</a> |
| 209 | ··<span·class="text">Improvements·and·New·Features</span> | 209 | ··<span·class="text">Improvements·and·New·Features</span> |
| 210 | </h3> | 210 | </h3> |
| 211 | <ul><li><p>Triple-Quoted·Strings·has·been·implemented·as·per·<a·href="https://www.erlang.org/eeps/eep-0064">EEP·64</a>.·See·<a·href="../../../../doc/system/data_types.html#string">String</a>·in·the·Reference·Manual.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="s">""</span><span·class="s">" | 211 | <ul><li><p>Triple-Quoted·Strings·has·been·implemented·as·per·<a·href="https://www.erlang.org/eeps/eep-0064">EEP·64</a>.·See·<a·href="../../../../doc/system/data_types.html#string">String</a>·in·the·Reference·Manual.</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="s">""</span><span·class="s">" |
| 212 | ···a | 212 | ···a |
| 213 | ···b | 213 | ···b |
| 214 | ···c | 214 | ···c |
| 215 | ···"</span><span·class="s">""</span><span·class="p">.</span><span·class="w"> | 215 | ···"</span><span·class="s">""</span><span·class="p">.</span><span·class="w"> |
| 216 | </span><span·class="s">"a\nb\nc"</span></code></pre><p>Adjacent·string·literals·without·intervening·white·space·is·now·a·syntax·error,·to·avoid·possible·confusion·with·triple-quoted·strings.·For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="s">"abc"</span><span·class="s">"xyz"</span><span·class="p">.</span><span·class="w"> | 216 | </span><span·class="s">"a\nb\nc"</span></code></pre><p>Adjacent·string·literals·without·intervening·white·space·is·now·a·syntax·error,·to·avoid·possible·confusion·with·triple-quoted·strings.·For·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="s">"abc"</span><span·class="s">"xyz"</span><span·class="p">.</span><span·class="w"> |
| 217 | </span><span·class="s">"xyz"</span><span·class="p">.</span><span·class="w"> | 217 | </span><span·class="s">"xyz"</span><span·class="p">.</span><span·class="w"> |
| 218 | </span><span·class="gt">*·1:6:·adjacent·string·literals·without·intervening·white·space</span></code></pre><p><strong><em>·POTENTIAL·INCOMPATIBILITY·</em></strong></p><p>Own·Id:·OTP-18750·Aux·Id:·OTP-18746,·<a·href="https://github.com/erlang/otp/pull/7313"·title="">PR-7313</a>,·<a·href="https://github.com/erlang/otp/pull/7451"·title="">PR-7451</a></p></li><li><p>There·is·a·new·tool·<a·href="tprof.html"><code·class="inline">tprof</code></a>,·which·combines·the·functionality·of·<a·href="eprof.html"><code·class="inline">eprof</code></a>·and·<a·href="cprof.html"><code·class="inline">cprof</code></a>·under·one·interface·and·adds·heap·profiling.·It·also·has·functionality·to·help·with·profiling·process·hierarchies.</p><p><em>Example</em>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">tprof</span><span·class="p">:</span><span·class="nf">profile</span><span·class="p"·data-group-id=" | 218 | </span><span·class="gt">*·1:6:·adjacent·string·literals·without·intervening·white·space</span></code></pre><p><strong><em>·POTENTIAL·INCOMPATIBILITY·</em></strong></p><p>Own·Id:·OTP-18750·Aux·Id:·OTP-18746,·<a·href="https://github.com/erlang/otp/pull/7313"·title="">PR-7313</a>,·<a·href="https://github.com/erlang/otp/pull/7451"·title="">PR-7451</a></p></li><li><p>There·is·a·new·tool·<a·href="tprof.html"><code·class="inline">tprof</code></a>,·which·combines·the·functionality·of·<a·href="eprof.html"><code·class="inline">eprof</code></a>·and·<a·href="cprof.html"><code·class="inline">cprof</code></a>·under·one·interface·and·adds·heap·profiling.·It·also·has·functionality·to·help·with·profiling·process·hierarchies.</p><p><em>Example</em>:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">tprof</span><span·class="p">:</span><span·class="nf">profile</span><span·class="p"·data-group-id="3651591957-1">(</span><span·class="ss">lists</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">seq</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="3651591957-2">[</span><span·class="mi">1</span><spa[·...·truncated·by·diffoscope;·len:·458,·SHA:·abb93d21288958cf54a28b13382216f31e91cbeee4bcbff1ee7c809bec6ed7ad·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 219 | </span><span·class="o">*</span><span·class="o">*</span><span·class="o">*</span><span·class="o">*</span><span·class="o">*</span><span·class="o">*</span><span·class="w">·</span><span·class="n">Process</span><span·class="w">·</span><span·class="o"><</span><span·class="mf">0.92</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="w">··</span><span·class="o">--</span><span·class="w">··</span><span·class="mf">100.00</span><span·class="c1">%·of·total·***·</span><span·class="w"> | 219 | </span><span·class="o">*</span><span·class="o">*</span><span·class="o">*</span><span·class="o">*</span><span·class="o">*</span><span·class="o">*</span><span·class="w">·</span><span·class="n">Process</span><span·class="w">·</span><span·class="o"><</span><span·class="mf">0.92</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="w">··</span><span·class="o">--</span><span·class="w">··</span><span·class="mf">100.00</span><span·class="c1">%·of·total·***·</span><span·class="w"> |
| 220 | </span><span·class="n">FUNCTION</span><span·class="w">··········</span><span·class="n">CALLS</span><span·class="w">··</span><span·class="n">WORDS</span><span·class="w">··</span><span·class="n">PER</span><span·class="w">·</span><span·class="n">CALL</span><span·class="w">··</span><span·class="p"·data-group-id=" | 220 | </span><span·class="n">FUNCTION</span><span·class="w">··········</span><span·class="n">CALLS</span><span·class="w">··</span><span·class="n">WORDS</span><span·class="w">··</span><span·class="n">PER</span><span·class="w">·</span><span·class="n">CALL</span><span·class="w">··</span><span·class="p"·data-group-id="3651591957-4">[</span><span·class="w">·····</span><span·class="c1">%]</span><span·class="w"> |
| 221 | </span><span·class="nc">lists</span><span·class="p">:</span><span·class="ss">seq_loop</span><span·class="p">/</span><span·class="mi">3</span><span·class="w">······</span><span·class="mi">5</span><span·class="w">·····</span><span·class="mi">32</span><span·class="w">······</span><span·class="mf">6.40</span><span·class="w">··</span><span·class="p"·data-group-id=" | 221 | </span><span·class="nc">lists</span><span·class="p">:</span><span·class="ss">seq_loop</span><span·class="p">/</span><span·class="mi">3</span><span·class="w">······</span><span·class="mi">5</span><span·class="w">·····</span><span·class="mi">32</span><span·class="w">······</span><span·class="mf">6.40</span><span·class="w">··</span><span·class="p"·data-group-id="3651591957-5">[</span><span·class="mf">100.00</span><span·class="p"·data-group-id="3651591957-5">]</span><span·class="w"> |
| 222 | ····························</span><span·class="mi">32</span><span·class="w">············</span><span·class="p"·data-group-id=" | 222 | ····························</span><span·class="mi">32</span><span·class="w">············</span><span·class="p"·data-group-id="3651591957-6">[</span><span·class="w">·</span><span·class="mf">100.0</span><span·class="p"·data-group-id="3651591957-6">]</span><span·class="w"> |
| 223 | </span><span·class="ss">ok</span></code></pre><p>Own·Id:·OTP-18756·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/6639"·title="">PR-6639</a></p></li><li><p>Native·coverage·support·has·been·implemented·in·the·JIT.·It·will··automatically·be·used·by·the·<a·href="cover.html"><code·class="inline">cover</code></a>·tool·to·reduce·the·execution·overhead·when·running·cover-compiled·code.</p><p>There·are·also·new·APIs·to·support·native·coverage·without·using·the·<code·class="inline">cover</code>·tool.</p><p>To·instrument·code·for·native·coverage·it·must·be·compiled·with·the·<a·href="../../../../lib/compiler-9.0/doc/html/compile.html#line_coverage"><code·class="inline">line_coverage</code></a>·option.</p><p>To·enable·native·coverage·in·the·runtime·system,·start·it·like·so:</p><pre><code·class="text">$·erl·+JPcover·true</code></pre><p>There·are·also·the·following·new·functions·for·supporting·native·coverage:</p><ul><li><a·href="../../../../lib/kernel-10.3/doc/html/code.html#coverage_support/0"><code·class="inline">code:coverage_support/0</code></a></li><li><a·href="../../../../lib/kernel-10.3/doc/html/code.html#get_coverage/2"><code·class="inline">code:get_coverage/2</code></a></li><li><a·href="../../../../lib/kernel-10.3/doc/html/code.html#reset_coverage/1"><code·class="inline">code:reset_coverage/1</code></a></li><li><a·href="../../../../lib/kernel-10.3/doc/html/code.html#get_coverage_mode/0"><code·class="inline">code:get_coverage_mode/0</code></a></li><li><a·href="../../../../lib/kernel-10.3/doc/html/code.html#get_coverage_mode/1"><code·class="inline">code:get_coverage_mode/1</code></a></li><li><a·href="../../../../lib/kernel-10.3/doc/html/code.html#set_coverage_mode/1"><code·class="inline">code:set_coverage_mode/1</code></a></li></ul><p>Own·Id:·OTP-18856·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/7856"·title="">PR-7856</a></p></li><li><p>The·documentation·has·been·migrated·to·use·Markdown·and·ExDoc.</p><p>Own·Id:·OTP-18955·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8026"·title="">PR-8026</a></p></li><li><p>Improved·the·align·command·in·emacs·mode.</p><p>Own·Id:·OTP-19080·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8288"·title="">PR-8288</a></p></li></ul><h2·id="tools-3-6"·class="section-heading"> | 223 | </span><span·class="ss">ok</span></code></pre><p>Own·Id:·OTP-18756·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/6639"·title="">PR-6639</a></p></li><li><p>Native·coverage·support·has·been·implemented·in·the·JIT.·It·will··automatically·be·used·by·the·<a·href="cover.html"><code·class="inline">cover</code></a>·tool·to·reduce·the·execution·overhead·when·running·cover-compiled·code.</p><p>There·are·also·new·APIs·to·support·native·coverage·without·using·the·<code·class="inline">cover</code>·tool.</p><p>To·instrument·code·for·native·coverage·it·must·be·compiled·with·the·<a·href="../../../../lib/compiler-9.0/doc/html/compile.html#line_coverage"><code·class="inline">line_coverage</code></a>·option.</p><p>To·enable·native·coverage·in·the·runtime·system,·start·it·like·so:</p><pre><code·class="text">$·erl·+JPcover·true</code></pre><p>There·are·also·the·following·new·functions·for·supporting·native·coverage:</p><ul><li><a·href="../../../../lib/kernel-10.3/doc/html/code.html#coverage_support/0"><code·class="inline">code:coverage_support/0</code></a></li><li><a·href="../../../../lib/kernel-10.3/doc/html/code.html#get_coverage/2"><code·class="inline">code:get_coverage/2</code></a></li><li><a·href="../../../../lib/kernel-10.3/doc/html/code.html#reset_coverage/1"><code·class="inline">code:reset_coverage/1</code></a></li><li><a·href="../../../../lib/kernel-10.3/doc/html/code.html#get_coverage_mode/0"><code·class="inline">code:get_coverage_mode/0</code></a></li><li><a·href="../../../../lib/kernel-10.3/doc/html/code.html#get_coverage_mode/1"><code·class="inline">code:get_coverage_mode/1</code></a></li><li><a·href="../../../../lib/kernel-10.3/doc/html/code.html#set_coverage_mode/1"><code·class="inline">code:set_coverage_mode/1</code></a></li></ul><p>Own·Id:·OTP-18856·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/7856"·title="">PR-7856</a></p></li><li><p>The·documentation·has·been·migrated·to·use·Markdown·and·ExDoc.</p><p>Own·Id:·OTP-18955·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8026"·title="">PR-8026</a></p></li><li><p>Improved·the·align·command·in·emacs·mode.</p><p>Own·Id:·OTP-19080·Aux·Id:·<a·href="https://github.com/erlang/otp/pull/8288"·title="">PR-8288</a></p></li></ul><h2·id="tools-3-6"·class="section-heading"> |
| 224 | ··<a·href="#tools-3-6"·class="hover-link"> | 224 | ··<a·href="#tools-3-6"·class="hover-link"> |
| 225 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 225 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 226 | ··</a> | 226 | ··</a> |
| 227 | ··<span·class="text">Tools·3.6</span> | 227 | ··<span·class="text">Tools·3.6</span> |
| 228 | </h2> | 228 | </h2> |
| 229 | <h3·id="improvements-and-new-features-3"·class="section-heading"> | 229 | <h3·id="improvements-and-new-features-3"·class="section-heading"> |
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| 1546 | ······<p·class="built-using"> | 1546 | ······<p·class="built-using"> |
| 1547 | ········Built·using | 1547 | ········Built·using |
| 1548 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1548 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1549 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1549 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1550 | ······</p> | 1550 | ······</p> |
| 1551 | <p>Copyright·©·1996-202 | 1551 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1552 | ····</footer> | 1552 | ····</footer> |
| 1553 | ··</div> | 1553 | ··</div> |
| 1554 | </main> | 1554 | </main> |
| 1555 | </div> | 1555 | </div> |
| 1556 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1556 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1557 | ··<script> | 1557 | ··<script> |
| 1558 | ··let·initialized·=·false; | 1558 | ··let·initialized·=·false; |
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| 141 | ······<p·class="built-using"> | 141 | ······<p·class="built-using"> |
| 142 | ········Built·using | 142 | ········Built·using |
| 143 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 143 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 144 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 144 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 145 | ······</p> | 145 | ······</p> |
| 146 | <p>Copyright·©·1996-202 | 146 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 147 | ····</footer> | 147 | ····</footer> |
| 148 | ··</div> | 148 | ··</div> |
| 149 | </main> | 149 | </main> |
| 150 | </div> | 150 | </div> |
| 151 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 151 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 152 | ··<script> | 152 | ··<script> |
| 153 | ··let·initialized·=·false; | 153 | ··let·initialized·=·false; |
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| 771 | ········Built·using | 771 | ········Built·using |
| 772 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 772 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 773 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 773 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 774 | ······</p> | 774 | ······</p> |
| 775 | <p>Copyright·©·1996-202 | 775 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 776 | ····</footer> | 776 | ····</footer> |
| 777 | ··</div> | 777 | ··</div> |
| 778 | </main> | 778 | </main> |
| 779 | </div> | 779 | </div> |
| 780 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 780 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 781 | ··<script> | 781 | ··<script> |
| 782 | ··let·initialized·=·false; | 782 | ··let·initialized·=·false; |
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| 3577 | ········Built·using | 3577 | ········Built·using |
| 3578 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 3578 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 3579 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 3579 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 3580 | ······</p> | 3580 | ······</p> |
| 3581 | <p>Copyright·©·1996-202 | 3581 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 3582 | ····</footer> | 3582 | ····</footer> |
| 3583 | ··</div> | 3583 | ··</div> |
| 3584 | </main> | 3584 | </main> |
| 3585 | </div> | 3585 | </div> |
| 3586 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 3586 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 3587 | ··<script> | 3587 | ··<script> |
| 3588 | ··let·initialized·=·false; | 3588 | ··let·initialized·=·false; |
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| 136 | reading;·not·all·of·the·concepts·used·are·explained,·and·it·is·assumed·that·the | 136 | reading;·not·all·of·the·concepts·used·are·explained,·and·it·is·assumed·that·the |
| 137 | <a·href="xref.html">reference·manual</a>·has·been·at·least·skimmed.</p><h2·id="module-check"·class="section-heading"> | 137 | <a·href="xref.html">reference·manual</a>·has·been·at·least·skimmed.</p><h2·id="module-check"·class="section-heading"> |
| 138 | ··<a·href="#module-check"·class="hover-link"> | 138 | ··<a·href="#module-check"·class="hover-link"> |
| 139 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 139 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 140 | ··</a> | 140 | ··</a> |
| 141 | ··<span·class="text">Module·Check</span> | 141 | ··<span·class="text">Module·Check</span> |
| 142 | </h2> | 142 | </h2> |
| 143 | <p>Assume·we·want·to·check·the·following·module:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 143 | <p>Assume·we·want·to·check·the·following·module:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="7706085402-1">(</span><span·class="ss">my_module</span><span·class="p"·data-group-id="7706085402-1">)</span><span·class="p">.</span><span·class="w"> |
| 144 | </span><span·class="w"> | 144 | </span><span·class="w"> |
| 145 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 145 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="7706085402-2">(</span><span·class="p"·data-group-id="7706085402-3">[</span><span·class="ss">t</span><span·class="p">/</span><span·class="mi">1</span><span·class="p"·data-group-id="7706085402-3">]</span><span·class="p"·data-group-id="7706085402-2">)</span><span·class="p">.</span><span·class="w"> |
| 146 | </span><span·class="nf">t</span><span·class="p"·data-group-id=" | 146 | </span><span·class="nf">t</span><span·class="p"·data-group-id="7706085402-4">(</span><span·class="n">A</span><span·class="p"·data-group-id="7706085402-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 147 | ··</span><span·class="nc">my_module</span><span·class="p">:</span><span·class="nf">t2</span><span·class="p"·data-group-id=" | 147 | ··</span><span·class="nc">my_module</span><span·class="p">:</span><span·class="nf">t2</span><span·class="p"·data-group-id="7706085402-5">(</span><span·class="n">A</span><span·class="p"·data-group-id="7706085402-5">)</span><span·class="p">.</span><span·class="w"> |
| 148 | </span><span·class="nf">t2</span><span·class="p"·data-group-id=" | 148 | </span><span·class="nf">t2</span><span·class="p"·data-group-id="7706085402-6">(</span><span·class="p">_</span><span·class="p"·data-group-id="7706085402-6">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 149 | ··</span><span·class="ss">true</span><span·class="p">.</span></code></pre><p>Cross·reference·data·are·read·from·BEAM·files,·so·the·first·step·when·checking | 149 | ··</span><span·class="ss">true</span><span·class="p">.</span></code></pre><p>Cross·reference·data·are·read·from·BEAM·files,·so·the·first·step·when·checking |
| 150 | an·edited·module·is·to·compile·it:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nf">c</span><span·class="p"·data-group-id="6 | 150 | an·edited·module·is·to·compile·it:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nf">c</span><span·class="p"·data-group-id="6351154083-1">(</span><span·class="ss">my_module</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">debug_info</span><span·class="p"·data-group-id="6351154083-1">)</span><span·class="p">.</span><span·class="w"> |
| 151 | </span><span·class="p">.</span><span·class="o">/</span><span·class="ss">my_module</span><span·class="p">.</span><span·class="nc">erl</span><span·class="p">:</span><span·class="mi">10</span><span·class="p">:</span><span·class="w">·</span><span·class="n">Warning</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">function</span><span·class="w">·</span><span·class="ss">t2</span><span·class="p">/</span><span·class="mi">1</span><span·class="w">·</span><span·class="ss">is</span><span·class="w">·</span><span·class="ss">unused</span><span·class="w"> | 151 | </span><span·class="p">.</span><span·class="o">/</span><span·class="ss">my_module</span><span·class="p">.</span><span·class="nc">erl</span><span·class="p">:</span><span·class="mi">10</span><span·class="p">:</span><span·class="w">·</span><span·class="n">Warning</span><span·class="p">:</span><span·class="w">·</span><span·class="ss">function</span><span·class="w">·</span><span·class="ss">t2</span><span·class="p">/</span><span·class="mi">1</span><span·class="w">·</span><span·class="ss">is</span><span·class="w">·</span><span·class="ss">unused</span><span·class="w"> |
| 152 | </span><span·class="p"·data-group-id="6 | 152 | </span><span·class="p"·data-group-id="6351154083-2">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">my_module</span><span·class="p"·data-group-id="6351154083-2">}</span></code></pre><p>The·<code·class="inline">debug_info</code>·option·ensures·that·the·BEAM·file·contains·debug·information, |
| 153 | which·makes·it·possible·to·find·unused·local·functions.</p><p>The·module·can·now·be·checked·for·calls·to | 153 | which·makes·it·possible·to·find·unused·local·functions.</p><p>The·module·can·now·be·checked·for·calls·to |
| 154 | <a·href="xref.html#deprecated_function">deprecated·functions</a>,·calls·to | 154 | <a·href="xref.html#deprecated_function">deprecated·functions</a>,·calls·to |
| 155 | <a·href="xref.html#undefined_function">undefined·functions</a>,·and·for·unused·local | 155 | <a·href="xref.html#undefined_function">undefined·functions</a>,·and·for·unused·local |
| 156 | functions:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">2>·</span><span·class="nc">xref</span><span·class="p">:</span><span·class="nf">m</span><span·class="p"·data-group-id=" | 156 | functions:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">2>·</span><span·class="nc">xref</span><span·class="p">:</span><span·class="nf">m</span><span·class="p"·data-group-id="3780594760-1">(</span><span·class="ss">my_module</span><span·class="p"·data-group-id="3780594760-1">)</span><span·class="w"> |
| 157 | </span><span·class="p"·data-group-id=" | 157 | </span><span·class="p"·data-group-id="3780594760-2">[</span><span·class="p"·data-group-id="3780594760-3">{</span><span·class="ss">deprecated</span><span·class="p">,</span><span·class="p"·data-group-id="3780594760-4">[</span><span·class="p"·data-group-id="3780594760-4">]</span><span·class="p"·d[·...·truncated·by·diffoscope;·len:·23,·SHA:·da84f252f9b9d46c7a63b0d3c849a606d1501fe6093ffe0f9751057456c980bb·...·]0-3">}</span><span·class="p">,</span><span·class="w"> |
| 158 | ·</span><span·class="p"·data-group-id=" | 158 | ·</span><span·class="p"·data-group-id="3780594760-5">{</span><span·class="ss">undefined</span><span·class="p">,</span><span·class="p"·data-group-id="3780594760-6">[</span><span·class="p"·data-group-id="3780594760-7">{</span><span·class="p"·data-group-id="3780594760-8">{</span><span·class="ss">m[·...·truncated·by·diffoscope;·len:·574,·SHA:·4f3ad785012f0f97a9118e7eb913a22f5144a844e581549427f20b6763c6b051·...·]0-5">}</span><span·class="p">,</span><span·class="w"> |
| 159 | ·</span><span·class="p"·data-group-id=" | 159 | ·</span><span·class="p"·data-group-id="3780594760-10">{</span><span·class="ss">unused</span><span·class="p">,</span><span·class="p"·data-group-id="3780594760-11">[</span><span·class="p"·data-group-id="3780594760-12">{</span><span·class="ss">my_module</span><span·class="p">,</span><span·class="s[·...·truncated·by·diffoscope;·len:·263,·SHA:·ae62ff33c3c4127ee000bb2fe73f4edb36fc8267fc115f3cfa99b13719d49feb·...·]0-2">]</span></code></pre><p><code·class="inline">m/1</code>·is·also·suitable·for·checking·that·the·BEAM·file·of·a·module·that·is·about |
| 160 | to·be·loaded·into·a·running·a·system·does·not·call·any·undefined·functions.·In | 160 | to·be·loaded·into·a·running·a·system·does·not·call·any·undefined·functions.·In |
| 161 | either·case,·the·code·path·of·the·code·server·(see·the·module·<code·class="inline">code</code>)·is·used | 161 | either·case,·the·code·path·of·the·code·server·(see·the·module·<code·class="inline">code</code>)·is·used |
| 162 | for·finding·modules·that·export·externally·called·functions·not·exported·by·the | 162 | for·finding·modules·that·export·externally·called·functions·not·exported·by·the |
| 163 | checked·module·itself,·so·called·<a·href="xref.html#library_module">library·modules</a>.</p><h2·id="predefined-analysis"·class="section-heading"> | 163 | checked·module·itself,·so·called·<a·href="xref.html#library_module">library·modules</a>.</p><h2·id="predefined-analysis"·class="section-heading"> |
| 164 | ··<a·href="#predefined-analysis"·class="hover-link"> | 164 | ··<a·href="#predefined-analysis"·class="hover-link"> |
| 165 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 165 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 166 | ··</a> | 166 | ··</a> |
| 167 | ··<span·class="text">Predefined·Analysis</span> | 167 | ··<span·class="text">Predefined·Analysis</span> |
| 168 | </h2> | 168 | </h2> |
| 169 | <p>In·the·last·example·the·module·to·analyze·was·given·as·an·argument·to·<code·class="inline">m/1</code>,·and | 169 | <p>In·the·last·example·the·module·to·analyze·was·given·as·an·argument·to·<code·class="inline">m/1</code>,·and |
| 170 | the·code·path·was·(implicitly)·used·as·<a·href="xref.html#library_path">library·path</a>.·In | 170 | the·code·path·was·(implicitly)·used·as·<a·href="xref.html#library_path">library·path</a>.·In |
| 171 | this·example·an·<a·href="xref.html#xref_server">xref·server</a>·will·be·used,·which·makes·it | 171 | this·example·an·<a·href="xref.html#xref_server">xref·server</a>·will·be·used,·which·makes·it |
| 172 | possible·to·analyze·applications·and·releases,·and·also·to·select·the·library | 172 | possible·to·analyze·applications·and·releases,·and·also·to·select·the·library |
| 173 | path·explicitly.</p><p>Each·Xref·server·is·referred·to·by·a·unique·name.·The·name·is·given·when | 173 | path·explicitly.</p><p>Each·Xref·server·is·referred·to·by·a·unique·name.·The·name·is·given·when |
| 174 | creating·the·server:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">xref</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id=" | 174 | creating·the·server:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">1>·</span><span·class="nc">xref</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id="6575683859-1">(</span><span·class="ss">s</span><span·class="p"·data-group-id="6575683859-1">)</span><span·class="p">.</span><span·class="w"> |
| 175 | </span><span·class="p"·data-group-id=" | 175 | </span><span·class="p"·data-group-id="6575683859-2">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="o"><</span><span·class="mf">0.27</span><span·class="p">.</span><span·class="mi">0</span><span·class="o">></span><span·class="p"·data-group-id="6575683859-2">}</span></code></pre><p>Next·the·system·to·be·analyzed·is·added·to·the·Xref·server.·Here·the·system·will |
| 176 | be·OTP,·so·no·library·path·will·be·needed.·Otherwise,·when·analyzing·a·system | 176 | be·OTP,·so·no·library·path·will·be·needed.·Otherwise,·when·analyzing·a·system |
| 177 | that·uses·OTP,·the·OTP·modules·are·typically·made·library·modules·by·setting·the | 177 | that·uses·OTP,·the·OTP·modules·are·typically·made·library·modules·by·setting·the |
| 178 | library·path·to·the·default·OTP·code·path·(or·to·<code·class="inline">code_path</code>,·see·the | 178 | library·path·to·the·default·OTP·code·path·(or·to·<code·class="inline">code_path</code>,·see·the |
| 179 | <a·href="xref.html#code_path">reference·manual</a>).·By·default,·the·names·of·read·BEAM | 179 | <a·href="xref.html#code_path">reference·manual</a>).·By·default,·the·names·of·read·BEAM |
| 180 | files·and·warnings·are·output·when·adding·analyzed·modules,·but·these·messages | 180 | files·and·warnings·are·output·when·adding·analyzed·modules,·but·these·messages |
| 181 | can·be·avoided·by·setting·default·values·of·some·options:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">2>·</span><span·class="nc">xref</span><span·class="p">:</span><span·class="nf">set_default</span><span·class="p"·data-group-id=" | 181 | can·be·avoided·by·setting·default·values·of·some·options:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">2>·</span><span·class="nc">xref</span><span·class="p">:</span><span·class="nf">set_default</span><span·class="p"·data-group-id="2657748323-1">(</span><span·class="ss">s</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2657748323-2">[</span><span·class="p"·data-group-id="2657748323-3">{</span><span·class="ss">verbose</span><span·class="p">,</span>[·...·truncated·by·diffoscope;·len:·415,·SHA:·ac5786c2834b13e732fae61c1ab72e9f4c9c389ea6647258e17ca2339b37c2cf·...·]-1">)</span><span·class="p">.</span><span·class="w"> |
| 182 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> | 182 | </span><span·class="ss">ok</span><span·class="gp·unselectable"> |
| 183 | 3>·</span><span·class="nc">xref</span><span·class="p">:</span><span·class="nf">add_release</span><span·class="p"·data-group-id=" | 183 | 3>·</span><span·class="nc">xref</span><span·class="p">:</span><span·class="nf">add_release</span><span·class="p"·data-group-id="2657748323-5">(</span><span·class="ss">s</span><span·class="p">,</span><span·class="w">·</span><span·class="nc">code</span><span·class="p">:</span><span·class="nf">lib_dir</span><span·class="p"·data-group-id="2657748323-6">(</span><span·class="p"·data-grou[·...·truncated·by·diffoscope;·len:·326,·SHA:·996f4a471416bcae05ceaee28d704d9a06799caf69f623e2697638a0fbed284f·...·]-5">)</span><span·class="p">.</span><span·class="w"> |
| 184 | </span><span·class="p"·data-group-id=" | 184 | </span><span·class="p"·data-group-id="2657748323-8">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="ss">otp</span><span·class="p"·data-group-id="2657748323-8">}</span></code></pre><p><code·class="inline">add_release/3</code>·assumes·that·all·subdirectories·of·the·library·directory |
| 185 | returned·by·<a·href="../../../../lib/kernel-10.3/doc/html/code.html#lib_dir/0"><code·class="inline">code:lib_dir()</code></a>·contain·applications; | 185 | returned·by·<a·href="../../../../lib/kernel-10.3/doc/html/code.html#lib_dir/0"><code·class="inline">code:lib_dir()</code></a>·contain·applications; |
| 186 | the·effect·is·that·of·reading·all·BEAM·files·for·the·application.</p><p>It·is·now·easy·to·check·the·release·for·calls·to·undefined·functions:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">4>·</span><span·class="nc">xref</span><span·class="p">:</span><span·class="nf">analyze</span><span·class="p"·data-group-id=" | 186 | the·effect·is·that·of·reading·all·BEAM·files·for·the·application.</p><p>It·is·now·easy·to·check·the·release·for·calls·to·undefined·functions:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">4>·</span><span·class="nc">xref</span><span·class="p">:</span><span·class="nf">analyze</span><span·class="p"·data-group-id="2027366558-1">(</span><span·class="ss">s</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">undefined_function_calls</span><span·class="p"·data-group-id="2027366558-1">)</span><span·class="p">.</span><span·class="w"> |
| 187 | </span><span·class="p"·data-group-id=" | 187 | </span><span·class="p"·data-group-id="2027366558-2">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="2027366558-3">[</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p"·data-group-id="2027[·...·truncated·by·diffoscope;·len:·457,·SHA:·fa824954f5d21d8c3f7286590f0b1fb9956e6cfb686993f0bb7cdf734474c6b0·...·]-1">)</span><span·class="p">.</span></code></pre><p>The·check·for·calls·to·undefined·functions·is·an·example·of·a·predefined |
| 188 | analysis,·probably·the·most·useful·one.·Other·examples·are·the·analyses·that | 188 | analysis,·probably·the·most·useful·one.·Other·examples·are·the·analyses·that |
| 189 | find·unused·local·functions,·or·functions·that·call·some·given·functions.·See | 189 | find·unused·local·functions,·or·functions·that·call·some·given·functions.·See |
| 190 | the·<a·href="xref.html#analyze/3">analyze/2,3</a>·functions·for·a·complete·list·of·predefined | 190 | the·<a·href="xref.html#analyze/3">analyze/2,3</a>·functions·for·a·complete·list·of·predefined |
| 191 | analyses.</p><p>Each·predefined·analysis·is·a·shorthand·for·a·<a·href="xref.html#query">query</a>,·a | 191 | analyses.</p><p>Each·predefined·analysis·is·a·shorthand·for·a·<a·href="xref.html#query">query</a>,·a |
| 192 | sentence·of·a·tiny·language·providing·cross·reference·data·as·values·of | 192 | sentence·of·a·tiny·language·providing·cross·reference·data·as·values·of |
| 193 | <a·href="xref.html#predefined_variable">predefined·variables</a>.·The·check·for·calls·to | 193 | <a·href="xref.html#predefined_variable">predefined·variables</a>.·The·check·for·calls·to |
| 194 | undefined·functions·can·thus·be·stated·as·a·query:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">4>·</span><span·class="nc">xref</span><span·class="p">:</span><span·class="nf">q</span><span·class="p"·data-group-id=" | 194 | undefined·functions·can·thus·be·stated·as·a·query:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="gp·unselectable">4>·</span><span·class="nc">xref</span><span·class="p">:</span><span·class="nf">q</span><span·class="p"·data-group-id="1630680390-1">(</span><span·class="ss">s</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"(XC·-·UC)·||·(XU·-·X·-·B)"</span><span·class="p"·data-group-id="1630680390-1">)</span><span·class="p">.</span><span·class="w"> |
| 195 | </span><span·class="p"·data-group-id=" | 195 | </span><span·class="p"·data-group-id="1630680390-2">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="p"·data-group-id="1630680390-3">[</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p"·data-group-id="1630680390-3">]</span><span·[·...·truncated·by·diffoscope;·len:·35,·SHA:·2621bcd1b5c50bccc30385d86e9d6d44764e55838e8fa88c5edf1dec4f175603·...·]-2">}</span></code></pre><p>The·query·asks·for·the·restriction·of·external·calls·except·the·unresolved·calls |
| 196 | to·calls·to·functions·that·are·externally·used·but·neither·exported·nor·built-in | 196 | to·calls·to·functions·that·are·externally·used·but·neither·exported·nor·built-in |
| 197 | functions·(the·<code·class="inline">||</code>·operator·restricts·the·used·functions·while·the·<code·class="inline">|</code>·operator | 197 | functions·(the·<code·class="inline">||</code>·operator·restricts·the·used·functions·while·the·<code·class="inline">|</code>·operator |
| 198 | restricts·the·calling·functions).·The·<code·class="inline">-</code>·operator·returns·the·difference·of·two | 198 | restricts·the·calling·functions).·The·<code·class="inline">-</code>·operator·returns·the·difference·of·two |
| 199 | sets,·and·the·<code·class="inline">+</code>·operator·to·be·used·below·returns·the·union·of·two·sets.</p><p>The·relationships·between·the·predefined·variables·<code·class="inline">XU</code>,·<code·class="inline">X</code>,·<code·class="inline">B</code>·and·a·few | 199 | sets,·and·the·<code·class="inline">+</code>·operator·to·be·used·below·returns·the·union·of·two·sets.</p><p>The·relationships·between·the·predefined·variables·<code·class="inline">XU</code>,·<code·class="inline">X</code>,·<code·class="inline">B</code>·and·a·few |
| 200 | others·are·worth·elaborating·upon.·The·reference·manual·mentions·two·ways·of | 200 | others·are·worth·elaborating·upon.·The·reference·manual·mentions·two·ways·of |
| 201 | expressing·the·set·of·all·functions,·one·that·focuses·on·how·they·are·defined: | 201 | expressing·the·set·of·all·functions,·one·that·focuses·on·how·they·are·defined: |
| 202 | <code·class="inline">X + L + B + U</code>,·and·one·that·focuses·on·how·they·are·used:·<code·class="inline">UU + LU + XU</code>.·The | 202 | <code·class="inline">X + L + B + U</code>,·and·one·that·focuses·on·how·they·are·used:·<code·class="inline">UU + LU + XU</code>.·The |
| Offset 220, 16 lines modified | Offset 220, 16 lines modified | ||
| 220 | </h2> | 220 | </h2> |
| 221 | <p>The·module·check·and·the·predefined·analyses·are·useful,·but·limited.·Sometimes | 221 | <p>The·module·check·and·the·predefined·analyses·are·useful,·but·limited.·Sometimes |
| 222 | more·flexibility·is·needed,·for·instance·one·might·not·need·to·apply·a·graph | 222 | more·flexibility·is·needed,·for·instance·one·might·not·need·to·apply·a·graph |
| 223 | analysis·on·all·calls,·but·some·subset·will·do·equally·well.·That·flexibility·is | 223 | analysis·on·all·calls,·but·some·subset·will·do·equally·well.·That·flexibility·is |
| 224 | provided·with·a·simple·language.·Below·are·some·expressions·of·the·language·with | 224 | provided·with·a·simple·language.·Below·are·some·expressions·of·the·language·with |
| 225 | comments,·focusing·on·elements·of·the·language·rather·than·providing·useful | 225 | comments,·focusing·on·elements·of·the·language·rather·than·providing·useful |
| 226 | examples.·The·analyzed·system·is·assumed·to·be·OTP,·so·in·order·to·run·the | 226 | examples.·The·analyzed·system·is·assumed·to·be·OTP,·so·in·order·to·run·the |
| 227 | queries,·first·evaluate·these·calls:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">xref</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id=" | 227 | queries,·first·evaluate·these·calls:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nc">xref</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id="3100635618-1">(</span><span·class="ss">s</span><span·class="p"·data-group-id="3100635618-1">)</span><span·class="p">.</span><span·class="w"> |
| 228 | </span><span·class="nc">xref</span><span·class="p">:</span><span·class="nf">add_release</span><span·class="p"·data-group-id=" | 228 | </span><span·class="nc">xref</span><span·class="p">:</span><span·class="nf">add_release</span><span·class="p"·data-group-id="3100635618-2">(</span><span·class="ss">s</span><span·class="p">,</span><span·class="w">·</span><span·class="nc">code</span><span·class="p">:</span><span·class="nf">root_dir</span><span·class="p"·data-group-id="3100635618-3">(</span><span·class="p"·data-gro[·...·truncated·by·diffoscope;·len:·70,·SHA:·08f66d8f676e823244794efcc663762e329aa5fc6b563f253005eb27004b53f1·...·]-2">)</span><span·class="p">.</span></code></pre><ul><li><p><strong><code·class="inline">xref:q(s,·"(Fun)·xref·:·Mod").</code></strong>·-·All·functions·of·the·<code·class="inline">xref</code>·module.</p></li><li><p><strong><code·class="inline">xref:q(s,·"xref·:·Mod·*·X").</code></strong>·-·All·exported·functions·of·the·<code·class="inline">xref</code> |
| 229 | module.·The·first·operand·of·the·intersection·operator·<code·class="inline">*</code>·is·implicitly | 229 | module.·The·first·operand·of·the·intersection·operator·<code·class="inline">*</code>·is·implicitly |
| 230 | converted·to·the·more·special·type·of·the·second·operand.</p></li><li><p><strong><code·class="inline">xref:q(s,·"(Mod)·tools").</code></strong>·-·All·modules·of·the·Tools·application.</p></li><li><p><strong><code·class="inline">xref:q(s,·'"xref_.*"·:·Mod').</code></strong>·-·All·modules·with·a·name·beginning·with | 230 | converted·to·the·more·special·type·of·the·second·operand.</p></li><li><p><strong><code·class="inline">xref:q(s,·"(Mod)·tools").</code></strong>·-·All·modules·of·the·Tools·application.</p></li><li><p><strong><code·class="inline">xref:q(s,·'"xref_.*"·:·Mod').</code></strong>·-·All·modules·with·a·name·beginning·with |
| 231 | <code·class="inline">xref_</code>.</p></li><li><p><strong><code·class="inline">xref:q(s,·"#·E | X ").</code></strong>·-·Number·of·calls·from·exported·functions.</p></li><li><p><strong><code·class="inline">xref:q(s,·"XC || L ").</code></strong>·-·All·external·calls·to·local·functions.</p></li><li><p><strong><code·class="inline">xref:q(s,·"XC * LC").</code></strong>·-·All·calls·that·have·both·an·external·and·a·local | 231 | <code·class="inline">xref_</code>.</p></li><li><p><strong><code·class="inline">xref:q(s,·"#·E | X ").</code></strong>·-·Number·of·calls·from·exported·functions.</p></li><li><p><strong><code·class="inline">xref:q(s,·"XC || L ").</code></strong>·-·All·external·calls·to·local·functions.</p></li><li><p><strong><code·class="inline">xref:q(s,·"XC * LC").</code></strong>·-·All·calls·that·have·both·an·external·and·a·local |
| 232 | version.</p></li><li><p><strong><code·class="inline">xref:q(s,·"(LLin)·(LC·*·XC)").</code></strong>·-·The·lines·where·the·local·calls·of·the | 232 | version.</p></li><li><p><strong><code·class="inline">xref:q(s,·"(LLin)·(LC·*·XC)").</code></strong>·-·The·lines·where·the·local·calls·of·the |
| 233 | last·example·are·made.</p></li><li><p><strong><code·class="inline">xref:q(s,·"(XLin)·(LC·*·XC)").</code></strong>·-·The·lines·where·the·external·calls·of | 233 | last·example·are·made.</p></li><li><p><strong><code·class="inline">xref:q(s,·"(XLin)·(LC·*·XC)").</code></strong>·-·The·lines·where·the·external·calls·of |
| 234 | the·example·before·last·are·made.</p></li><li><p><strong><code·class="inline">xref:q(s,·"XC·*·(ME·-·strict·ME)").</code></strong>·-·External·calls·within·some·module.</p></li><li><p><strong><code·class="inline">xref:q(s,·"E ||| kernel").</code></strong>·-·All·calls·within·the·Kernel·application.</p></li><li><p><strong><code·class="inline">xref:q(s,·"closure E | kernel || kernel").</code></strong>·-·All·direct·and·indirect | 234 | the·example·before·last·are·made.</p></li><li><p><strong><code·class="inline">xref:q(s,·"XC·*·(ME·-·strict·ME)").</code></strong>·-·External·calls·within·some·module.</p></li><li><p><strong><code·class="inline">xref:q(s,·"E ||| kernel").</code></strong>·-·All·calls·within·the·Kernel·application.</p></li><li><p><strong><code·class="inline">xref:q(s,·"closure E | kernel || kernel").</code></strong>·-·All·direct·and·indirect |
| 235 | calls·within·the·Kernel·application.·Both·the·calling·and·the·used·functions | 235 | calls·within·the·Kernel·application.·Both·the·calling·and·the·used·functions |
| Offset 264, 26 lines modified | Offset 264, 26 lines modified | ||
| 264 | <code·class="inline">digraph</code>·representation·of·graphs)·has·to·be·explicitly·applied.</p><p>As·an·example·of·analyzing·indirect·calls,·the·following·Erlang·function·tries | 264 | <code·class="inline">digraph</code>·representation·of·graphs)·has·to·be·explicitly·applied.</p><p>As·an·example·of·analyzing·indirect·calls,·the·following·Erlang·function·tries |
| 265 | to·answer·the·question:·if·we·want·to·know·which·modules·are·used·indirectly·by | 265 | to·answer·the·question:·if·we·want·to·know·which·modules·are·used·indirectly·by |
| 266 | some·module(s),·is·it·worth·while·using·the | 266 | some·module(s),·is·it·worth·while·using·the |
| 267 | <a·href="xref.html#call_graph">function·graph</a>·rather·than·the·module·graph?·Recall·that | 267 | <a·href="xref.html#call_graph">function·graph</a>·rather·than·the·module·graph?·Recall·that |
| 268 | a·module·M1·is·said·to·call·a·module·M2·if·there·is·some·function·in·M1·that | 268 | a·module·M1·is·said·to·call·a·module·M2·if·there·is·some·function·in·M1·that |
| 269 | calls·some·function·in·M2.·It·would·be·nice·if·we·could·use·the·much·smaller | 269 | calls·some·function·in·M2.·It·would·be·nice·if·we·could·use·the·much·smaller |
| 270 | module·graph,·since·it·is·available·also·in·the·light·weight | 270 | module·graph,·since·it·is·available·also·in·the·light·weight |
| 271 | <code·class="inline">modules</code><a·href="xref.html#mode">mode</a>·of·Xref·servers.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">t</span><span·class="p"·data-group-id="589 | 271 | <code·class="inline">modules</code><a·href="xref.html#mode">mode</a>·of·Xref·servers.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">t</span><span·class="p"·data-group-id="1508979748-1">(</span><span·class="n">S</span><span·class="p"·data-group-id="1508979748-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 272 | ··</span><span·class="p"·data-group-id="589 | 272 | ··</span><span·class="p"·data-group-id="1508979748-2">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="p"·data-group-id="1508979748-2">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class[·...·truncated·by·diffoscope;·len:·285,·SHA:·4434a50eedce6a63703e4b629a4fbc6eeabd7dc55367ca75c9e2755f25f27c1e·...·]-3">)</span><span·class="p">,</span><span·class="w"> |
| 273 | ··</span><span·class="p"·data-group-id="589 | 273 | ··</span><span·class="p"·data-group-id="1508979748-4">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Ms</span><span·class="p"·data-group-id="1508979748-4">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·clas[·...·truncated·by·diffoscope;·len:·270,·SHA:·d993411ceca155f32dc26e8196f80ea82b5c4c2fec86c44572156fa45990a2b2·...·]-5">)</span><span·class="p">,</span><span·class="w"> |
| 274 | ··</span><span·class="n">Fun</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id="589 | 274 | ··</span><span·class="n">Fun</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id="1508979748-6">(</span><span·class="n">M</span><span·class="p">,</span><span·class="w">·</span><span·class="n">N</span><span·class="p"·data-group-id="1508979748-6">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 275 | ······</span><span·class="n">Q</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">io_lib</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="589 | 275 | ······</span><span·class="n">Q</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">io_lib</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="1508979748-7">(</span><span·class="s">"#·(Mod)·(Eplus·|·</span><span·class="si">~p</span><span·class="s">·:·Mod)"</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1508979748-8">[</span><span·class="n">M</span><[·...·truncated·by·diffoscope;·len:·93,·SHA:·4098bd4da77da0552dc27025020183ce4ef85fcec9897cb590e44babaecb86fc·...·]-7">)</span><span·class="p">,</span><span·class="w"> |
| 276 | ······</span><span·class="p"·data-group-id="589 | 276 | ······</span><span·class="p"·data-group-id="1508979748-9">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">N0</span><span·class="p"·data-group-id="1508979748-9">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·clas[·...·truncated·by·diffoscope;·len:·450,·SHA:·4367d198c62c614651aa13715b14cd77e7fa76456ab4bc920bc41387b26d8ccb·...·]-10">)</span><span·class="p">,</span><span·class="w"> |
| 277 | ······</span><span·class="n">N</span><span·class="w">·</span><span·class="o">+</span><span·class="w">·</span><span·class="n">N0</span><span·class="w"> | 277 | ······</span><span·class="n">N</span><span·class="w">·</span><span·class="o">+</span><span·class="w">·</span><span·class="n">N0</span><span·class="w"> |
| 278 | ····</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> | 278 | ····</span><span·class="k">end</span><span·class="p">,</span><span·class="w"> |
| 279 | ··</span><span·class="n">Sum</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">foldl</span><span·class="p"·data-group-id="589 | 279 | ··</span><span·class="n">Sum</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">lists</span><span·class="p">:</span><span·class="nf">foldl</span><span·class="p"·data-group-id="1508979748-12">(</span><span·class="n">Fun</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">0</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Ms</span><span·class="p"·data-group-id="1508979748-12">)</span><span·class="p">,</span><span·class="w"> |
| 280 | ··</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">xref</span><span·class="p">:</span><span·class="nf">forget</span><span·class="p"·data-group-id="589 | 280 | ··</span><span·class="ss">ok</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">xref</span><span·class="p">:</span><span·class="nf">forget</span><span·class="p"·data-group-id="1508979748-13">(</span><span·class="n">S</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">'Eplus'</span><span·class="p"·data-group-id="1508979748-13">)</span><span·class="p">,</span><span·class="w"> |
| 281 | ··</span><span·class="p"·data-group-id="589 | 281 | ··</span><span·class="p"·data-group-id="1508979748-14">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Tot</span><span·class="p"·data-group-id="1508979748-14">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·c[·...·truncated·by·diffoscope;·len:·291,·SHA:·c7c14e4fdc992065f525c6f6e7e2e0b2bebbfcdf9e2b2bca596ec153812daa08·...·]-15">)</span><span·class="p">,</span><span·class="w"> |
| 282 | ··</span><span·class="mi">100</span><span·class="w">·</span><span·class="o">*</span><span·class="w">·</span><span·class="p"·data-group-id="589 | 282 | ··</span><span·class="mi">100</span><span·class="w">·</span><span·class="o">*</span><span·class="w">·</span><span·class="p"·data-group-id="1508979748-16">(</span><span·class="p"·data-group-id="1508979748-17">(</span><span·class="n">Tot</span><span·class="w">·</span><span·class="o">-</span><span·class="w">·</span><span·class="n">Sum</span><span·class="p"·data-group-id="1508979748-17">)</span><[·...·truncated·by·diffoscope;·len:·138,·SHA:·349eccb56aba787c5fd011ed34ac905dba88739a8d3bbaae7a2c03d573b94fc9·...·]-16">)</span><span·class="p">.</span></code></pre><p>Comments·on·the·code:</p><ul><li>We·want·to·find·the·reduction·of·the·closure·of·the·function·graph·to·modules. |
| 283 | The·direct·expression·for·doing·that·would·be·<code·class="inline">(Mod) (closure E | AM)</code>,·but | 283 | The·direct·expression·for·doing·that·would·be·<code·class="inline">(Mod) (closure E | AM)</code>,·but |
| 284 | then·we·would·have·to·represent·all·of·the·transitive·closure·of·E·in·memory. | 284 | then·we·would·have·to·represent·all·of·the·transitive·closure·of·E·in·memory. |
| 285 | Instead·the·number·of·indirectly·used·modules·is·found·for·each·analyzed | 285 | Instead·the·number·of·indirectly·used·modules·is·found·for·each·analyzed |
| 286 | module,·and·the·sum·over·all·modules·is·calculated.</li><li>A·user·variable·is·employed·for·holding·the·<code·class="inline">digraph</code>·representation·of·the | 286 | module,·and·the·sum·over·all·modules·is·calculated.</li><li>A·user·variable·is·employed·for·holding·the·<code·class="inline">digraph</code>·representation·of·the |
| 287 | function·graph·for·use·in·many·queries.·The·reason·is·efficiency.·As·opposed | 287 | function·graph·for·use·in·many·queries.·The·reason·is·efficiency.·As·opposed |
| 288 | to·the·<code·class="inline">=</code>·operator,·the·<code·class="inline">:=</code>·operator·saves·a·value·for·subsequent·analyses. | 288 | to·the·<code·class="inline">=</code>·operator,·the·<code·class="inline">:=</code>·operator·saves·a·value·for·subsequent·analyses. |
| 289 | Here·might·be·the·place·to·note·that·equal·subexpressions·within·a·query·are | 289 | Here·might·be·the·place·to·note·that·equal·subexpressions·within·a·query·are |
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| 350 | ······<p·class="built-using"> | 350 | ······<p·class="built-using"> |
| 351 | ········Built·using | 351 | ········Built·using |
| 352 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 352 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 353 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 353 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 354 | ······</p> | 354 | ······</p> |
| 355 | <p>Copyright·©·1996-202 | 355 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 356 | ····</footer> | 356 | ····</footer> |
| 357 | ··</div> | 357 | ··</div> |
| 358 | </main> | 358 | </main> |
| 359 | </div> | 359 | </div> |
| 360 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 360 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 144 | ········Built·using | 144 | ········Built·using |
| 145 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 145 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 146 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 146 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 147 | ······</p> | 147 | ······</p> |
| 148 | <p>Copyright·©·1996-202 | 148 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 149 | ····</footer> | 149 | ····</footer> |
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| 154 | ··<script> | 154 | ··<script> |
| 155 | ··let·initialized·=·false; | 155 | ··let·initialized·=·false; |
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| 2415 | ········Built·using | 2415 | ········Built·using |
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| 2417 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 2417 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 2418 | ······</p> | 2418 | ······</p> |
| 2419 | <p>Copyright·©·1996-202 | 2419 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 2420 | ····</footer> | 2420 | ····</footer> |
| 2421 | ··</div> | 2421 | ··</div> |
| 2422 | </main> | 2422 | </main> |
| 2423 | </div> | 2423 | </div> |
| 2424 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 2424 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 2425 | ··<script> | 2425 | ··<script> |
| 2426 | ··let·initialized·=·false; | 2426 | ··let·initialized·=·false; |
| Offset 157, 21 lines modified | Offset 157, 21 lines modified | ||
| 157 | that·object.·Type·checking·is·done·so·that·a·module·only·operates·on·it's | 157 | that·object.·Type·checking·is·done·so·that·a·module·only·operates·on·it's |
| 158 | objects·or·inherited·classes.</p><p>An·object·is·created·with·<em>new</em>·and·destroyed·with·<em>destroy</em>.·Most·functions·in | 158 | objects·or·inherited·classes.</p><p>An·object·is·created·with·<em>new</em>·and·destroyed·with·<em>destroy</em>.·Most·functions·in |
| 159 | the·classes·are·named·the·same·as·their·C++·counterpart,·except·that·for | 159 | the·classes·are·named·the·same·as·their·C++·counterpart,·except·that·for |
| 160 | convenience,·in·erlang·they·start·with·a·lowercase·letter·and·the·first·argument | 160 | convenience,·in·erlang·they·start·with·a·lowercase·letter·and·the·first·argument |
| 161 | is·the·object·reference.·Optional·arguments·are·last·and·expressed·as·tagged | 161 | is·the·object·reference.·Optional·arguments·are·last·and·expressed·as·tagged |
| 162 | tuples·in·any·order.</p><p>For·example·the·<em>wxWindow</em>·C++·class·is·implemented·in·the·<em>wxWindow</em>·erlang | 162 | tuples·in·any·order.</p><p>For·example·the·<em>wxWindow</em>·C++·class·is·implemented·in·the·<em>wxWindow</em>·erlang |
| 163 | module·and·the·member·<em>wxWindow::CenterOnParent</em>·is·thus | 163 | module·and·the·member·<em>wxWindow::CenterOnParent</em>·is·thus |
| 164 | <em>wxWindow:centerOnParent</em>.·The·following·C++·code:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">··</span><span·class="ss">wxWindow</span><span·class="w">·</span><span·class="n">MyWin</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">new</span><span·class="w">·</span><span·class="nf">wxWindow</span><span·class="p"·data-group-id=" | 164 | <em>wxWindow:centerOnParent</em>.·The·following·C++·code:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">··</span><span·class="ss">wxWindow</span><span·class="w">·</span><span·class="n">MyWin</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="ss">new</span><span·class="w">·</span><span·class="nf">wxWindow</span><span·class="p"·data-group-id="1452993395-1">(</span><span·class="p"·data-group-id="1452993395-1">)</span><span·class="p">;</span><span·class="w"> |
| 165 | ··</span><span·class="n">MyWin</span><span·class="p">.</span><span·class="n">CenterOnParent</span><span·class="p"·data-group-id=" | 165 | ··</span><span·class="n">MyWin</span><span·class="p">.</span><span·class="n">CenterOnParent</span><span·class="p"·data-group-id="1452993395-2">(</span><span·class="ss">wxVERTICAL</span><span·class="p"·data-group-id="1452993395-2">)</span><span·class="p">;</span><span·class="w"> |
| 166 | ··</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> | 166 | ··</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> |
| 167 | ··</span><span·class="ss">delete</span><span·class="w">·</span><span·class="n">MyWin</span><span·class="p">;</span></code></pre><p>would·in·erlang·look·like:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">··</span><span·class="n">MyWin</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">wxWindow</span><span·class="p">:</span><span·class="nf">new</span><span·class="p"·data-group-id=" | 167 | ··</span><span·class="ss">delete</span><span·class="w">·</span><span·class="n">MyWin</span><span·class="p">;</span></code></pre><p>would·in·erlang·look·like:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">··</span><span·class="n">MyWin</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">wxWindow</span><span·class="p">:</span><span·class="nf">new</span><span·class="p"·data-group-id="6055660705-1">(</span><span·class="p"·data-group-id="6055660705-1">)</span><span·class="p">,</span><span·class="w"> |
| 168 | ··</span><span·class="nc">wxWindow</span><span·class="p">:</span><span·class="nf">centerOnParent</span><span·class="p"·data-group-id=" | 168 | ··</span><span·class="nc">wxWindow</span><span·class="p">:</span><span·class="nf">centerOnParent</span><span·class="p"·data-group-id="6055660705-2">(</span><span·class="n">MyWin</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="6055660705-3">[</span><span·class="p"·data-group-id="6055660705-4">{</span><span·class="ss">dir</span><span·class="p">,</span><[·...·truncated·by·diffoscope;·len:·204,·SHA:·c056cdc41ef1e0f68e190e8b12fa0276d982a75de31ffaa2637d3692d1a7c2b4·...·]-2">)</span><span·class="p">,</span><span·class="w"> |
| 169 | ··</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> | 169 | ··</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> |
| 170 | ··</span><span·class="nc">wxWindow</span><span·class="p">:</span><span·class="nf">destroy</span><span·class="p"·data-group-id=" | 170 | ··</span><span·class="nc">wxWindow</span><span·class="p">:</span><span·class="nf">destroy</span><span·class="p"·data-group-id="6055660705-5">(</span><span·class="n">MyWin</span><span·class="p"·data-group-id="6055660705-5">)</span><span·class="p">,</span></code></pre><p>When·you·are·reading·wxWidgets·documentation·or·the·examples,·you·will·notice |
| 171 | that·some·of·the·most·basic·classes·are·missing·in·<em>wx</em>,·they·are·directly | 171 | that·some·of·the·most·basic·classes·are·missing·in·<em>wx</em>,·they·are·directly |
| 172 | mapped·to·corresponding·erlang·terms:</p><ul><li><p><strong><em>wxPoint</em>·is·represented·by·{Xcoord,Ycoord}</strong></p></li><li><p><strong><em>wxSize</em>·is·represented·by·{Width,Height}</strong></p></li><li><p><strong><em>wxRect</em>·is·represented·by·{Xcoord,Ycoord,Width,Height}</strong></p></li><li><p><strong><em>wxColour</em>·is·represented·by·{Red,Green,Blue[,Alpha]}</strong></p></li><li><p><strong><em>wxString</em>·is·represented·by | 172 | mapped·to·corresponding·erlang·terms:</p><ul><li><p><strong><em>wxPoint</em>·is·represented·by·{Xcoord,Ycoord}</strong></p></li><li><p><strong><em>wxSize</em>·is·represented·by·{Width,Height}</strong></p></li><li><p><strong><em>wxRect</em>·is·represented·by·{Xcoord,Ycoord,Width,Height}</strong></p></li><li><p><strong><em>wxColour</em>·is·represented·by·{Red,Green,Blue[,Alpha]}</strong></p></li><li><p><strong><em>wxString</em>·is·represented·by |
| 173 | <a·href="../../../../lib/stdlib-7.0/doc/html/unicode.html#t:charlist/0">unicode:charlist()</a></strong></p></li><li><p><strong><em>wxGBPosition</em>·is·represented·by·{Row,Column}</strong></p></li><li><p><strong><em>wxGBSpan</em>·is·represented·by·{RowSpan,ColumnSPan}</strong></p></li><li><p><strong><em>wxGridCellCoords</em>·is·represented·by·{Row,Column}</strong></p></li></ul><p>In·the·places·where·the·erlang·API·differs·from·the·original·one·it·should·be | 173 | <a·href="../../../../lib/stdlib-7.0/doc/html/unicode.html#t:charlist/0">unicode:charlist()</a></strong></p></li><li><p><strong><em>wxGBPosition</em>·is·represented·by·{Row,Column}</strong></p></li><li><p><strong><em>wxGBSpan</em>·is·represented·by·{RowSpan,ColumnSPan}</strong></p></li><li><p><strong><em>wxGridCellCoords</em>·is·represented·by·{Row,Column}</strong></p></li></ul><p>In·the·places·where·the·erlang·API·differs·from·the·original·one·it·should·be |
| 174 | obvious·from·the·erlang·documentation·which·representation·has·been·used.·E.g. | 174 | obvious·from·the·erlang·documentation·which·representation·has·been·used.·E.g. |
| 175 | the·C++·arrays·and/or·lists·are·sometimes·represented·as·erlang·lists·and | 175 | the·C++·arrays·and/or·lists·are·sometimes·represented·as·erlang·lists·and |
| 176 | sometimes·as·tuples.</p><p>Colours·are·represented·with·{Red,Green,Blue[,Alpha]},·the·Alpha·value·is | 176 | sometimes·as·tuples.</p><p>Colours·are·represented·with·{Red,Green,Blue[,Alpha]},·the·Alpha·value·is |
| 177 | optional·when·used·as·an·argument·to·functions,·but·it·will·always·be·returned | 177 | optional·when·used·as·an·argument·to·functions,·but·it·will·always·be·returned |
| Offset 191, 22 lines modified | Offset 191, 22 lines modified | ||
| 191 | ··<span·class="text">Multiple·processes·and·memory·handling</span> | 191 | ··<span·class="text">Multiple·processes·and·memory·handling</span> |
| 192 | </h2> | 192 | </h2> |
| 193 | <p>The·intention·is·that·each·erlang·application·calls·wx:new()·once·to·setup·it's | 193 | <p>The·intention·is·that·each·erlang·application·calls·wx:new()·once·to·setup·it's |
| 194 | GUI·which·creates·an·environment·and·a·memory·mapping.·To·be·able·to·use·<em>wx</em> | 194 | GUI·which·creates·an·environment·and·a·memory·mapping.·To·be·able·to·use·<em>wx</em> |
| 195 | from·several·processes·in·your·application,·you·must·share·the·environment.·You | 195 | from·several·processes·in·your·application,·you·must·share·the·environment.·You |
| 196 | can·get·the·active·environment·with·<a·href="wx.html#get_env/0"><code·class="inline">wx:get_env/0</code></a>·and·set·it·in·the·new | 196 | can·get·the·active·environment·with·<a·href="wx.html#get_env/0"><code·class="inline">wx:get_env/0</code></a>·and·set·it·in·the·new |
| 197 | processes·with·<a·href="wx.html#set_env/1"><code·class="inline">wx:set_env/1</code></a>.·Two·processes·or·applications·which·have·both | 197 | processes·with·<a·href="wx.html#set_env/1"><code·class="inline">wx:set_env/1</code></a>.·Two·processes·or·applications·which·have·both |
| 198 | called·wx:new()·will·not·be·able·use·each·others·objects.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">··</span><span·class="nc">wx</span><span·class="p">:</span><span·class="nf">new</span><span·class="p"·data-group-id="6 | 198 | called·wx:new()·will·not·be·able·use·each·others·objects.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">··</span><span·class="nc">wx</span><span·class="p">:</span><span·class="nf">new</span><span·class="p"·data-group-id="6486587525-1">(</span><span·class="p"·data-group-id="6486587525-1">)</span><span·class="p">,</span><span·class="w"> |
| 199 | ··</span><span·class="n">MyWin</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">wxFrame</span><span·class="p">:</span><span·class="nf">new</span><span·class="p"·data-group-id="6 | 199 | ··</span><span·class="n">MyWin</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">wxFrame</span><span·class="p">:</span><span·class="nf">new</span><span·class="p"·data-group-id="6486587525-2">(</span><span·class="nc">wx</span><span·class="p">:</span><span·class="nf">null</span><span·class="p"·data-group-id="6486587525-3">(</span><span·class="p"·data-group-id="6486587525-3">)</span><span·class="p">,</span><span·class="w">·</span><sp[·...·truncated·by·diffoscope;·len:·308,·SHA:·2f58ed23974eb015790ac4bbda7caec3aa410db20ebd7dd3409d200a51a12ecc·...·]-2">)</span><span·class="p">,</span><span·class="w"> |
| 200 | ··</span><span·class="n">Env</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">wx</span><span·class="p">:</span><span·class="nf">get_env</span><span·class="p"·data-group-id="6 | 200 | ··</span><span·class="n">Env</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">wx</span><span·class="p">:</span><span·class="nf">get_env</span><span·class="p"·data-group-id="6486587525-5">(</span><span·class="p"·data-group-id="6486587525-5">)</span><span·class="p">,</span><span·class="w"> |
| 201 | ··</span><span·class="nf">spawn</span><span·class="p"·data-group-id="6 | 201 | ··</span><span·class="nf">spawn</span><span·class="p"·data-group-id="6486587525-6">(</span><span·class="nf">fun</span><span·class="p"·data-group-id="6486587525-7">(</span><span·class="p"·data-group-id="6486587525-7">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 202 | ···········</span><span·class="nc">wx</span><span·class="p">:</span><span·class="nf">set_env</span><span·class="p"·data-group-id="6 | 202 | ···········</span><span·class="nc">wx</span><span·class="p">:</span><span·class="nf">set_env</span><span·class="p"·data-group-id="6486587525-8">(</span><span·class="n">Env</span><span·class="p"·data-group-id="6486587525-8">)</span><span·class="p">,</span><span·class="w"> |
| 203 | ···········</span><span·class="c1">%%·Here·you·can·do·wx·calls·from·your·helper·process.</span><span·class="w"> | 203 | ···········</span><span·class="c1">%%·Here·you·can·do·wx·calls·from·your·helper·process.</span><span·class="w"> |
| 204 | ···········</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> | 204 | ···········</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> |
| 205 | ········</span><span·class="k">end</span><span·class="p"·data-group-id="6 | 205 | ········</span><span·class="k">end</span><span·class="p"·data-group-id="6486587525-6">)</span><span·class="p">,</span><span·class="w"> |
| 206 | ··</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span></code></pre><p>When·<a·href="wx.html#destroy/0"><code·class="inline">wx:destroy/0</code></a>·is·invoked·or·when·all·processes·in·the·application·have | 206 | ··</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span></code></pre><p>When·<a·href="wx.html#destroy/0"><code·class="inline">wx:destroy/0</code></a>·is·invoked·or·when·all·processes·in·the·application·have |
| 207 | died,·the·memory·is·deleted·and·all·windows·created·by·that·application·are | 207 | died,·the·memory·is·deleted·and·all·windows·created·by·that·application·are |
| 208 | closed.</p><p>The·<em>wx</em>·application·never·cleans·or·garbage·collects·memory·as·long·as·the·user | 208 | closed.</p><p>The·<em>wx</em>·application·never·cleans·or·garbage·collects·memory·as·long·as·the·user |
| 209 | application·is·alive.·Most·of·the·objects·are·deleted·when·a·window·is·closed, | 209 | application·is·alive.·Most·of·the·objects·are·deleted·when·a·window·is·closed, |
| 210 | or·at·least·all·the·objects·which·have·a·parent·argument·that·is·non·null.·By | 210 | or·at·least·all·the·objects·which·have·a·parent·argument·that·is·non·null.·By |
| 211 | using·<code·class="inline">wxCLASS:destroy/1</code>·when·possible·you·can·avoid·an·increasing·memory | 211 | using·<code·class="inline">wxCLASS:destroy/1</code>·when·possible·you·can·avoid·an·increasing·memory |
| 212 | usage.·This·is·especially·important·when·<em>wxWidgets</em>·assumes·or·recommends·that | 212 | usage.·This·is·especially·important·when·<em>wxWidgets</em>·assumes·or·recommends·that |
| Offset 304, 15 lines modified | Offset 304, 15 lines modified | ||
| 304 | ······<p·class="built-using"> | 304 | ······<p·class="built-using"> |
| 305 | ········Built·using | 305 | ········Built·using |
| 306 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 306 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 307 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 307 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 308 | ······</p> | 308 | ······</p> |
| 309 | <p>Copyright·©·1996-202 | 309 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 310 | ····</footer> | 310 | ····</footer> |
| 311 | ··</div> | 311 | ··</div> |
| 312 | </main> | 312 | </main> |
| 313 | </div> | 313 | </div> |
| 314 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 314 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 315 | ··<script> | 315 | ··<script> |
| 316 | ··let·initialized·=·false; | 316 | ··let·initialized·=·false; |
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| 39147 | ······<p·class="built-using"> | 39147 | ······<p·class="built-using"> |
| 39148 | ········Built·using | 39148 | ········Built·using |
| 39149 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 39149 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 39150 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 39150 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 39151 | ······</p> | 39151 | ······</p> |
| 39152 | <p>Copyright·©·1996-202 | 39152 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 39153 | ····</footer> | 39153 | ····</footer> |
| 39154 | ··</div> | 39154 | ··</div> |
| 39155 | </main> | 39155 | </main> |
| 39156 | </div> | 39156 | </div> |
| 39157 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 39157 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 39158 | ··<script> | 39158 | ··<script> |
| 39159 | ··let·initialized·=·false; | 39159 | ··let·initialized·=·false; |
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| 1745 | ······<p·class="built-using"> | 1745 | ······<p·class="built-using"> |
| 1746 | ········Built·using | 1746 | ········Built·using |
| 1747 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1747 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1748 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1748 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1749 | ······</p> | 1749 | ······</p> |
| 1750 | <p>Copyright·©·1996-202 | 1750 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1751 | ····</footer> | 1751 | ····</footer> |
| 1752 | ··</div> | 1752 | ··</div> |
| 1753 | </main> | 1753 | </main> |
| 1754 | </div> | 1754 | </div> |
| 1755 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1755 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1756 | ··<script> | 1756 | ··<script> |
| 1757 | ··let·initialized·=·false; | 1757 | ··let·initialized·=·false; |
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| 1090 | ······<p·class="built-using"> | 1090 | ······<p·class="built-using"> |
| 1091 | ········Built·using | 1091 | ········Built·using |
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| 1095 | <p>Copyright·©·1996-202 | 1095 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 146 | <p>Copyright·©·1996-202 | 146 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 1414 | <p>Copyright·©·1996-202 | 1414 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 543 | <p>Copyright·©·1996-202 | 543 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 422 | <p>Copyright·©·1996-202 | 422 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 347 | <p>Copyright·©·1996-202 | 347 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 411 | <p>Copyright·©·1996-202 | 411 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 460 | <p>Copyright·©·1996-202 | 460 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 1414 | <p>Copyright·©·1996-202 | 1414 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 789 | <p>Copyright·©·1996-202 | 789 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 1370 | <p>Copyright·©·1996-202 | 1370 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 542 | <p>Copyright·©·1996-202 | 542 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 3896 | <p>Copyright·©·1996-202 | 3896 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 310 | ······</p> | 310 | ······</p> |
| 311 | <p>Copyright·©·1996-202 | 311 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 312 | ····</footer> | 312 | ····</footer> |
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| 455 | ······</p> | 455 | ······</p> |
| 456 | <p>Copyright·©·1996-202 | 456 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 1322 | <p>Copyright·©·1996-202 | 1322 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1323 | ····</footer> | 1323 | ····</footer> |
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| 1327 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1327 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 536 | <p>Copyright·©·1996-202 | 536 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 537 | ····</footer> | 537 | ····</footer> |
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| 541 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 541 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 422 | ······</p> | 422 | ······</p> |
| 423 | <p>Copyright·©·1996-202 | 423 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 424 | ····</footer> | 424 | ····</footer> |
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| 426 | </main> | 426 | </main> |
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| 428 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 428 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 920 | ······</p> | 920 | ······</p> |
| 921 | <p>Copyright·©·1996-202 | 921 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 922 | ····</footer> | 922 | ····</footer> |
| 923 | ··</div> | 923 | ··</div> |
| 924 | </main> | 924 | </main> |
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| 926 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 926 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 463 | ······</p> | 463 | ······</p> |
| 464 | <p>Copyright·©·1996-202 | 464 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 465 | ····</footer> | 465 | ····</footer> |
| 466 | ··</div> | 466 | ··</div> |
| 467 | </main> | 467 | </main> |
| 468 | </div> | 468 | </div> |
| 469 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 469 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 345 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 345 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 346 | ······</p> | 346 | ······</p> |
| 347 | <p>Copyright·©·1996-202 | 347 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 348 | ····</footer> | 348 | ····</footer> |
| 349 | ··</div> | 349 | ··</div> |
| 350 | </main> | 350 | </main> |
| 351 | </div> | 351 | </div> |
| 352 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 352 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 720 | ······</p> | 720 | ······</p> |
| 721 | <p>Copyright·©·1996-202 | 721 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 722 | ····</footer> | 722 | ····</footer> |
| 723 | ··</div> | 723 | ··</div> |
| 724 | </main> | 724 | </main> |
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| 726 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 726 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 552 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 552 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 553 | ······</p> | 553 | ······</p> |
| 554 | <p>Copyright·©·1996-202 | 554 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 555 | ····</footer> | 555 | ····</footer> |
| 556 | ··</div> | 556 | ··</div> |
| 557 | </main> | 557 | </main> |
| 558 | </div> | 558 | </div> |
| 559 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 559 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 397 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 397 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 398 | ······</p> | 398 | ······</p> |
| 399 | <p>Copyright·©·1996-202 | 399 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 400 | ····</footer> | 400 | ····</footer> |
| 401 | ··</div> | 401 | ··</div> |
| 402 | </main> | 402 | </main> |
| 403 | </div> | 403 | </div> |
| 404 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 404 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 895 | ······</p> | 895 | ······</p> |
| 896 | <p>Copyright·©·1996-202 | 896 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 897 | ····</footer> | 897 | ····</footer> |
| 898 | ··</div> | 898 | ··</div> |
| 899 | </main> | 899 | </main> |
| 900 | </div> | 900 | </div> |
| 901 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 901 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 1344 | ······</p> | 1344 | ······</p> |
| 1345 | <p>Copyright·©·1996-202 | 1345 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1346 | ····</footer> | 1346 | ····</footer> |
| 1347 | ··</div> | 1347 | ··</div> |
| 1348 | </main> | 1348 | </main> |
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| 1003 | <p>Copyright·©·1996-202 | 1003 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 384 | <p>Copyright·©·1996-202 | 384 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 947 | <p>Copyright·©·1996-202 | 947 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 750 | <p>Copyright·©·1996-202 | 750 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 507 | <p>Copyright·©·1996-202 | 507 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 351 | ······</p> | 351 | ······</p> |
| 352 | <p>Copyright·©·1996-202 | 352 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 641 | <p>Copyright·©·1996-202 | 641 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 1313 | <p>Copyright·©·1996-202 | 1313 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1314 | ····</footer> | 1314 | ····</footer> |
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| 1316 | </main> | 1316 | </main> |
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| 317 | ······</p> | 317 | ······</p> |
| 318 | <p>Copyright·©·1996-202 | 318 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 319 | ····</footer> | 319 | ····</footer> |
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| 772 | <p>Copyright·©·1996-202 | 772 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 773 | ····</footer> | 773 | ····</footer> |
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| 777 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 777 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 300 | ······</p> | 300 | ······</p> |
| 301 | <p>Copyright·©·1996-202 | 301 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 302 | ····</footer> | 302 | ····</footer> |
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| 304 | </main> | 304 | </main> |
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| 306 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 306 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 545 | <p>Copyright·©·1996-202 | 545 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 550 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 550 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 531 | <p>Copyright·©·1996-202 | 531 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 502 | <p>Copyright·©·1996-202 | 502 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 566 | <p>Copyright·©·1996-202 | 566 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 349 | <p>Copyright·©·1996-202 | 349 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 1249 | <p>Copyright·©·1996-202 | 1249 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 669 | <p>Copyright·©·1996-202 | 669 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 395 | ······</p> | 395 | ······</p> |
| 396 | <p>Copyright·©·1996-202 | 396 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 397 | ····</footer> | 397 | ····</footer> |
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| 322 | ······</p> | 322 | ······</p> |
| 323 | <p>Copyright·©·1996-202 | 323 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 324 | ····</footer> | 324 | ····</footer> |
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| 326 | </main> | 326 | </main> |
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| 328 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 328 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 1126 | <p>Copyright·©·1996-202 | 1126 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 1128 | ··</div> | 1128 | ··</div> |
| 1129 | </main> | 1129 | </main> |
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| 1131 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1131 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 467 | ······</p> | 467 | ······</p> |
| 468 | <p>Copyright·©·1996-202 | 468 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 3870 | ······</p> | 3870 | ······</p> |
| 3871 | <p>Copyright·©·1996-202 | 3871 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 389 | ······</p> | 389 | ······</p> |
| 390 | <p>Copyright·©·1996-202 | 390 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 257 | <p>Copyright·©·1996-202 | 257 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 262 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 262 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 341 | <p>Copyright·©·1996-202 | 341 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 575 | <p>Copyright·©·1996-202 | 575 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 520 | <p>Copyright·©·1996-202 | 520 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 574 | <p>Copyright·©·1996-202 | 574 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 680 | <p>Copyright·©·1996-202 | 680 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 293 | ······</p> | 293 | ······</p> |
| 294 | <p>Copyright·©·1996-202 | 294 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 425 | <p>Copyright·©·1996-202 | 425 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 430 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 430 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 351 | <p>Copyright·©·1996-202 | 351 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 580 | <p>Copyright·©·1996-202 | 580 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 649 | <p>Copyright·©·1996-202 | 649 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 654 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 654 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 383 | ······</p> | 383 | ······</p> |
| 384 | <p>Copyright·©·1996-202 | 384 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 385 | ····</footer> | 385 | ····</footer> |
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| 387 | </main> | 387 | </main> |
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| 907 | <p>Copyright·©·1996-202 | 907 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 349 | <p>Copyright·©·1996-202 | 349 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 576 | ······</p> | 576 | ······</p> |
| 577 | <p>Copyright·©·1996-202 | 577 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 582 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 582 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 565 | <p>Copyright·©·1996-202 | 565 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 513 | <p>Copyright·©·1996-202 | 513 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 820 | <p>Copyright·©·1996-202 | 820 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 357 | <p>Copyright·©·1996-202 | 357 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 1162 | <p>Copyright·©·1996-202 | 1162 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 816 | <p>Copyright·©·1996-202 | 816 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 821 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 821 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 423 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 423 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 424 | ······</p> | 424 | ······</p> |
| 425 | <p>Copyright·©·1996-202 | 425 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 426 | ····</footer> | 426 | ····</footer> |
| 427 | ··</div> | 427 | ··</div> |
| 428 | </main> | 428 | </main> |
| 429 | </div> | 429 | </div> |
| 430 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 430 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 642 | <p>Copyright·©·1996-202 | 642 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 643 | ····</footer> | 643 | ····</footer> |
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| 347 | ······</p> | 347 | ······</p> |
| 348 | <p>Copyright·©·1996-202 | 348 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 349 | ····</footer> | 349 | ····</footer> |
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| 351 | </main> | 351 | </main> |
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| 1238 | ······</p> | 1238 | ······</p> |
| 1239 | <p>Copyright·©·1996-202 | 1239 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1240 | ····</footer> | 1240 | ····</footer> |
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| 1244 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1244 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 222 | ······</p> | 222 | ······</p> |
| 223 | <p>Copyright·©·1996-202 | 223 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 224 | ····</footer> | 224 | ····</footer> |
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| 226 | </main> | 226 | </main> |
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| 228 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 228 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 433 | <p>Copyright·©·1996-202 | 433 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 434 | ····</footer> | 434 | ····</footer> |
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| 529 | <p>Copyright·©·1996-202 | 529 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 446 | <p>Copyright·©·1996-202 | 446 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 1067 | <p>Copyright·©·1996-202 | 1067 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 221 | <p>Copyright·©·1996-202 | 221 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 2124 | <p>Copyright·©·1996-202 | 2124 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 221 | <p>Copyright·©·1996-202 | 221 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 226 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 226 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 603 | <p>Copyright·©·1996-202 | 603 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 691 | <p>Copyright·©·1996-202 | 691 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 346 | ······</p> | 346 | ······</p> |
| 347 | <p>Copyright·©·1996-202 | 347 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 1129 | <p>Copyright·©·1996-202 | 1129 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 220 | ······</p> | 220 | ······</p> |
| 221 | <p>Copyright·©·1996-202 | 221 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 686 | <p>Copyright·©·1996-202 | 686 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 8036 | <p>Copyright·©·1996-202 | 8036 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 384 | <p>Copyright·©·1996-202 | 384 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 584 | <p>Copyright·©·1996-202 | 584 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 385 | <p>Copyright·©·1996-202 | 385 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 529 | <p>Copyright·©·1996-202 | 529 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 419 | <p>Copyright·©·1996-202 | 419 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 309 | <p>Copyright·©·1996-202 | 309 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 334 | <p>Copyright·©·1996-202 | 334 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 310 | <p>Copyright·©·1996-202 | 310 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 381 | ······</p> | 381 | ······</p> |
| 382 | <p>Copyright·©·1996-202 | 382 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 387 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 387 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 622 | <p>Copyright·©·1996-202 | 622 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 716 | <p>Copyright·©·1996-202 | 716 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 464 | <p>Copyright·©·1996-202 | 464 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 923 | <p>Copyright·©·1996-202 | 923 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 349 | ······</p> | 349 | ······</p> |
| 350 | <p>Copyright·©·1996-202 | 350 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 1304 | <p>Copyright·©·1996-202 | 1304 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 1309 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1309 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 434 | ······</p> | 434 | ······</p> |
| 435 | <p>Copyright·©·1996-202 | 435 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 436 | ····</footer> | 436 | ····</footer> |
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| 438 | </main> | 438 | </main> |
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| 440 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 440 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 581 | <p>Copyright·©·1996-202 | 581 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 582 | ····</footer> | 582 | ····</footer> |
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| 586 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 586 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 346 | ······</p> | 346 | ······</p> |
| 347 | <p>Copyright·©·1996-202 | 347 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 348 | ····</footer> | 348 | ····</footer> |
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| 352 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 352 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 524 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 524 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 525 | ······</p> | 525 | ······</p> |
| 526 | <p>Copyright·©·1996-202 | 526 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 527 | ····</footer> | 527 | ····</footer> |
| 528 | ··</div> | 528 | ··</div> |
| 529 | </main> | 529 | </main> |
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| 531 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 531 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 3686 | <p>Copyright·©·1996-202 | 3686 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 936 | <p>Copyright·©·1996-202 | 936 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 938 | ··</div> | 938 | ··</div> |
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| 291 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 291 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 292 | ······</p> | 292 | ······</p> |
| 293 | <p>Copyright·©·1996-202 | 293 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 294 | ····</footer> | 294 | ····</footer> |
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| 298 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 298 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 828 | <p>Copyright·©·1996-202 | 828 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 829 | ····</footer> | 829 | ····</footer> |
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| 833 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 833 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 910 | <p>Copyright·©·1996-202 | 910 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 915 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 915 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 582 | <p>Copyright·©·1996-202 | 582 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 583 | ····</footer> | 583 | ····</footer> |
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| 587 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 587 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 798 | <p>Copyright·©·1996-202 | 798 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 799 | ····</footer> | 799 | ····</footer> |
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| 803 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 803 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 3113 | <p>Copyright·©·1996-202 | 3113 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 3114 | ····</footer> | 3114 | ····</footer> |
| 3115 | ··</div> | 3115 | ··</div> |
| 3116 | </main> | 3116 | </main> |
| 3117 | </div> | 3117 | </div> |
| 3118 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 3118 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 806 | <p>Copyright·©·1996-202 | 806 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 807 | ····</footer> | 807 | ····</footer> |
| 808 | ··</div> | 808 | ··</div> |
| 809 | </main> | 809 | </main> |
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| 811 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 811 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 1216 | ······</p> | 1216 | ······</p> |
| 1217 | <p>Copyright·©·1996-202 | 1217 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1218 | ····</footer> | 1218 | ····</footer> |
| 1219 | ··</div> | 1219 | ··</div> |
| 1220 | </main> | 1220 | </main> |
| 1221 | </div> | 1221 | </div> |
| 1222 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1222 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 669 | ······</p> | 669 | ······</p> |
| 670 | <p>Copyright·©·1996-202 | 670 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 671 | ····</footer> | 671 | ····</footer> |
| 672 | ··</div> | 672 | ··</div> |
| 673 | </main> | 673 | </main> |
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| 675 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 675 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 568 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 568 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 569 | ······</p> | 569 | ······</p> |
| 570 | <p>Copyright·©·1996-202 | 570 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 571 | ····</footer> | 571 | ····</footer> |
| 572 | ··</div> | 572 | ··</div> |
| 573 | </main> | 573 | </main> |
| 574 | </div> | 574 | </div> |
| 575 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 575 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 1311 | ······</p> | 1311 | ······</p> |
| 1312 | <p>Copyright·©·1996-202 | 1312 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1313 | ····</footer> | 1313 | ····</footer> |
| 1314 | ··</div> | 1314 | ··</div> |
| 1315 | </main> | 1315 | </main> |
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| 1317 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1317 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 1314 | <p>Copyright·©·1996-202 | 1314 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1315 | ····</footer> | 1315 | ····</footer> |
| 1316 | ··</div> | 1316 | ··</div> |
| 1317 | </main> | 1317 | </main> |
| 1318 | </div> | 1318 | </div> |
| 1319 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1319 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 311 | ······</p> | 311 | ······</p> |
| 312 | <p>Copyright·©·1996-202 | 312 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 313 | ····</footer> | 313 | ····</footer> |
| 314 | ··</div> | 314 | ··</div> |
| 315 | </main> | 315 | </main> |
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| 317 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 317 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 639 | <p>Copyright·©·1996-202 | 639 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 396 | <p>Copyright·©·1996-202 | 396 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 799 | <p>Copyright·©·1996-202 | 799 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 461 | <p>Copyright·©·1996-202 | 461 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 466 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 466 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 296 | <p>Copyright·©·1996-202 | 296 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 435 | ······</p> | 435 | ······</p> |
| 436 | <p>Copyright·©·1996-202 | 436 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 2145 | <p>Copyright·©·1996-202 | 2145 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 2150 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 2150 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 1395 | <p>Copyright·©·1996-202 | 1395 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1396 | ····</footer> | 1396 | ····</footer> |
| 1397 | ··</div> | 1397 | ··</div> |
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| 1400 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1400 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 432 | ······</p> | 432 | ······</p> |
| 433 | <p>Copyright·©·1996-202 | 433 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 1370 | <p>Copyright·©·1996-202 | 1370 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1371 | ····</footer> | 1371 | ····</footer> |
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| 389 | ······</p> | 389 | ······</p> |
| 390 | <p>Copyright·©·1996-202 | 390 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 391 | ····</footer> | 391 | ····</footer> |
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| 485 | <p>Copyright·©·1996-202 | 485 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 312 | <p>Copyright·©·1996-202 | 312 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 349 | ······</p> | 349 | ······</p> |
| 350 | <p>Copyright·©·1996-202 | 350 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 351 | ····</footer> | 351 | ····</footer> |
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| 298 | <p>Copyright·©·1996-202 | 298 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 299 | ····</footer> | 299 | ····</footer> |
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| 1987 | <p>Copyright·©·1996-202 | 1987 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 388 | <p>Copyright·©·1996-202 | 388 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 435 | ······</p> | 435 | ······</p> |
| 436 | <p>Copyright·©·1996-202 | 436 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 437 | ····</footer> | 437 | ····</footer> |
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| 608 | ······</p> | 608 | ······</p> |
| 609 | <p>Copyright·©·1996-202 | 609 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 610 | ····</footer> | 610 | ····</footer> |
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| 612 | </main> | 612 | </main> |
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| 823 | ······</p> | 823 | ······</p> |
| 824 | <p>Copyright·©·1996-202 | 824 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 825 | ····</footer> | 825 | ····</footer> |
| 826 | ··</div> | 826 | ··</div> |
| 827 | </main> | 827 | </main> |
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| 829 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 829 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 901 | ······</p> | 901 | ······</p> |
| 902 | <p>Copyright·©·1996-202 | 902 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 903 | ····</footer> | 903 | ····</footer> |
| 904 | ··</div> | 904 | ··</div> |
| 905 | </main> | 905 | </main> |
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| 907 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 907 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 352 | ······</p> | 352 | ······</p> |
| 353 | <p>Copyright·©·1996-202 | 353 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 354 | ····</footer> | 354 | ····</footer> |
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| 346 | ······</p> | 346 | ······</p> |
| 347 | <p>Copyright·©·1996-202 | 347 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 348 | ····</footer> | 348 | ····</footer> |
| 349 | ··</div> | 349 | ··</div> |
| 350 | </main> | 350 | </main> |
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| 427 | ······</p> | 427 | ······</p> |
| 428 | <p>Copyright·©·1996-202 | 428 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 429 | ····</footer> | 429 | ····</footer> |
| 430 | ··</div> | 430 | ··</div> |
| 431 | </main> | 431 | </main> |
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| 433 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 433 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 1413 | ······</p> | 1413 | ······</p> |
| 1414 | <p>Copyright·©·1996-202 | 1414 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1415 | ····</footer> | 1415 | ····</footer> |
| 1416 | ··</div> | 1416 | ··</div> |
| 1417 | </main> | 1417 | </main> |
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| 1419 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1419 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 314 | ······</p> | 314 | ······</p> |
| 315 | <p>Copyright·©·1996-202 | 315 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 316 | ····</footer> | 316 | ····</footer> |
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| 318 | </main> | 318 | </main> |
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| 301 | ······</p> | 301 | ······</p> |
| 302 | <p>Copyright·©·1996-202 | 302 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 610 | <p>Copyright·©·1996-202 | 610 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 377 | <p>Copyright·©·1996-202 | 377 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 474 | <p>Copyright·©·1996-202 | 474 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 354 | <p>Copyright·©·1996-202 | 354 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 357 | </main> | 357 | </main> |
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| 359 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 359 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 828 | ······</p> | 828 | ······</p> |
| 829 | <p>Copyright·©·1996-202 | 829 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 830 | ····</footer> | 830 | ····</footer> |
| 831 | ··</div> | 831 | ··</div> |
| 832 | </main> | 832 | </main> |
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| 834 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 834 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 759 | <p>Copyright·©·1996-202 | 759 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 760 | ····</footer> | 760 | ····</footer> |
| 761 | ··</div> | 761 | ··</div> |
| 762 | </main> | 762 | </main> |
| 763 | </div> | 763 | </div> |
| 764 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 764 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 493 | ······</p> | 493 | ······</p> |
| 494 | <p>Copyright·©·1996-202 | 494 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 495 | ····</footer> | 495 | ····</footer> |
| 496 | ··</div> | 496 | ··</div> |
| 497 | </main> | 497 | </main> |
| 498 | </div> | 498 | </div> |
| 499 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 499 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 508 | ······</p> | 508 | ······</p> |
| 509 | <p>Copyright·©·1996-202 | 509 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 510 | ····</footer> | 510 | ····</footer> |
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| 346 | ······</p> | 346 | ······</p> |
| 347 | <p>Copyright·©·1996-202 | 347 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 348 | ····</footer> | 348 | ····</footer> |
| 349 | ··</div> | 349 | ··</div> |
| 350 | </main> | 350 | </main> |
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| 352 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 352 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 218 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 218 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 219 | ······</p> | 219 | ······</p> |
| 220 | <p>Copyright·©·1996-202 | 220 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 221 | ····</footer> | 221 | ····</footer> |
| 222 | ··</div> | 222 | ··</div> |
| 223 | </main> | 223 | </main> |
| 224 | </div> | 224 | </div> |
| 225 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 225 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 501 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 501 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
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| 503 | ······</p> | 503 | ······</p> |
| 504 | <p>Copyright·©·1996-202 | 504 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 505 | ····</footer> | 505 | ····</footer> |
| 506 | ··</div> | 506 | ··</div> |
| 507 | </main> | 507 | </main> |
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| 509 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 509 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 505 | <p>Copyright·©·1996-202 | 505 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 1040 | <p>Copyright·©·1996-202 | 1040 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 422 | <p>Copyright·©·1996-202 | 422 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 1215 | <p>Copyright·©·1996-202 | 1215 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 992 | <p>Copyright·©·1996-202 | 992 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 695 | <p>Copyright·©·1996-202 | 695 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 1186 | <p>Copyright·©·1996-202 | 1186 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 480 | <p>Copyright·©·1996-202 | 480 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 481 | ····</footer> | 481 | ····</footer> |
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| 485 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 485 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 378 | ······</p> | 378 | ······</p> |
| 379 | <p>Copyright·©·1996-202 | 379 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 380 | ····</footer> | 380 | ····</footer> |
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| 384 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 384 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 1088 | <p>Copyright·©·1996-202 | 1088 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 1093 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1093 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 573 | <p>Copyright·©·1996-202 | 573 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 574 | ····</footer> | 574 | ····</footer> |
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| 1158 | <p>Copyright·©·1996-202 | 1158 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 436 | <p>Copyright·©·1996-202 | 436 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 665 | <p>Copyright·©·1996-202 | 665 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 762 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 762 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
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| 764 | <p>Copyright·©·1996-202 | 764 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 769 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 769 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 312 | <p>Copyright·©·1996-202 | 312 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 778 | <p>Copyright·©·1996-202 | 778 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 783 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 783 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 399 | <p>Copyright·©·1996-202 | 399 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 390 | <p>Copyright·©·1996-202 | 390 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 1040 | <p>Copyright·©·1996-202 | 1040 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 498 | ······</p> | 498 | ······</p> |
| 499 | <p>Copyright·©·1996-202 | 499 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 500 | ····</footer> | 500 | ····</footer> |
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| 504 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 504 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 386 | <p>Copyright·©·1996-202 | 386 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 387 | ····</footer> | 387 | ····</footer> |
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| 389 | </main> | 389 | </main> |
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| 391 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 391 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 472 | ······</p> | 472 | ······</p> |
| 473 | <p>Copyright·©·1996-202 | 473 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 474 | ····</footer> | 474 | ····</footer> |
| 475 | ··</div> | 475 | ··</div> |
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| 478 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 478 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 394 | ······</p> | 394 | ······</p> |
| 395 | <p>Copyright·©·1996-202 | 395 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 396 | ····</footer> | 396 | ····</footer> |
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| 400 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 400 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 2246 | ······</p> | 2246 | ······</p> |
| 2247 | <p>Copyright·©·1996-202 | 2247 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 2248 | ····</footer> | 2248 | ····</footer> |
| 2249 | ··</div> | 2249 | ··</div> |
| 2250 | </main> | 2250 | </main> |
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| 717 | ······</p> | 717 | ······</p> |
| 718 | <p>Copyright·©·1996-202 | 718 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 719 | ····</footer> | 719 | ····</footer> |
| 720 | ··</div> | 720 | ··</div> |
| 721 | </main> | 721 | </main> |
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| 723 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 723 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 1616 | <p>Copyright·©·1996-202 | 1616 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1617 | ····</footer> | 1617 | ····</footer> |
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| 915 | <p>Copyright·©·1996-202 | 915 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 670 | <p>Copyright·©·1996-202 | 670 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 720 | <p>Copyright·©·1996-202 | 720 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 383 | <p>Copyright·©·1996-202 | 383 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 435 | ······</p> | 435 | ······</p> |
| 436 | <p>Copyright·©·1996-202 | 436 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 500 | ······</p> | 500 | ······</p> |
| 501 | <p>Copyright·©·1996-202 | 501 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 504 | </main> | 504 | </main> |
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| 506 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 506 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 1300 | <p>Copyright·©·1996-202 | 1300 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 1302 | ··</div> | 1302 | ··</div> |
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| 1305 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1305 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 554 | ······</p> | 554 | ······</p> |
| 555 | <p>Copyright·©·1996-202 | 555 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 556 | ····</footer> | 556 | ····</footer> |
| 557 | ··</div> | 557 | ··</div> |
| 558 | </main> | 558 | </main> |
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| 560 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 560 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 482 | <p>Copyright·©·1996-202 | 482 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 483 | ····</footer> | 483 | ····</footer> |
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| 390 | ······</p> | 390 | ······</p> |
| 391 | <p>Copyright·©·1996-202 | 391 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 392 | ····</footer> | 392 | ····</footer> |
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| 550 | ······</p> | 550 | ······</p> |
| 551 | <p>Copyright·©·1996-202 | 551 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 552 | ····</footer> | 552 | ····</footer> |
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| 556 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 556 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 612 | <p>Copyright·©·1996-202 | 612 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 1054 | <p>Copyright·©·1996-202 | 1054 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 501 | ······</p> | 501 | ······</p> |
| 502 | <p>Copyright·©·1996-202 | 502 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 1177 | <p>Copyright·©·1996-202 | 1177 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 298 | <p>Copyright·©·1996-202 | 298 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 468 | <p>Copyright·©·1996-202 | 468 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 426 | ······</p> | 426 | ······</p> |
| 427 | <p>Copyright·©·1996-202 | 427 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 432 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 432 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 506 | <p>Copyright·©·1996-202 | 506 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 511 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 511 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 289 | ······</p> | 289 | ······</p> |
| 290 | <p>Copyright·©·1996-202 | 290 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 295 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 295 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 1767 | <p>Copyright·©·1996-202 | 1767 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 2415 | <p>Copyright·©·1996-202 | 2415 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 467 | ······</p> | 467 | ······</p> |
| 468 | <p>Copyright·©·1996-202 | 468 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 464 | <p>Copyright·©·1996-202 | 464 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 556 | <p>Copyright·©·1996-202 | 556 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 1984 | ······</p> | 1984 | ······</p> |
| 1985 | <p>Copyright·©·1996-202 | 1985 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 489 | ······</p> | 489 | ······</p> |
| 490 | <p>Copyright·©·1996-202 | 490 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 1314 | <p>Copyright·©·1996-202 | 1314 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 1100 | <p>Copyright·©·1996-202 | 1100 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
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| 3496 | <p>Copyright·©·1996-202 | 3496 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 3497 | ····</footer> | 3497 | ····</footer> |
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| 3501 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 3501 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 614 | ······</p> | 614 | ······</p> |
| 615 | <p>Copyright·©·1996-202 | 615 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 616 | ····</footer> | 616 | ····</footer> |
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| 618 | </main> | 618 | </main> |
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| 620 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 620 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 1496 | <p>Copyright·©·1996-202 | 1496 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1497 | ····</footer> | 1497 | ····</footer> |
| 1498 | ··</div> | 1498 | ··</div> |
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| 990 | ······</p> | 990 | ······</p> |
| 991 | <p>Copyright·©·1996-202 | 991 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 992 | ····</footer> | 992 | ····</footer> |
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| 2233 | ······</p> | 2233 | ······</p> |
| 2234 | <p>Copyright·©·1996-202 | 2234 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 2235 | ····</footer> | 2235 | ····</footer> |
| 2236 | ··</div> | 2236 | ··</div> |
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| 2239 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 2239 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 470 | ······</p> | 470 | ······</p> |
| 471 | <p>Copyright·©·1996-202 | 471 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 472 | ····</footer> | 472 | ····</footer> |
| 473 | ··</div> | 473 | ··</div> |
| 474 | </main> | 474 | </main> |
| 475 | </div> | 475 | </div> |
| 476 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 476 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 7839 | ······</p> | 7839 | ······</p> |
| 7840 | <p>Copyright·©·1996-202 | 7840 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 7841 | ····</footer> | 7841 | ····</footer> |
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| 7845 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 7845 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 293 | ······</p> | 293 | ······</p> |
| 294 | <p>Copyright·©·1996-202 | 294 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 295 | ····</footer> | 295 | ····</footer> |
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| 297 | </main> | 297 | </main> |
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| 299 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 299 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 312 | ······</p> | 312 | ······</p> |
| 313 | <p>Copyright·©·1996-202 | 313 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 314 | ····</footer> | 314 | ····</footer> |
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| 290 | ······<p·class="built-using"> | 290 | ······<p·class="built-using"> |
| 291 | ········Built·using | 291 | ········Built·using |
| 292 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 292 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 293 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 293 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 294 | ······</p> | 294 | ······</p> |
| 295 | <p>Copyright·©·1996-202 | 295 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 296 | ····</footer> | 296 | ····</footer> |
| 297 | ··</div> | 297 | ··</div> |
| 298 | </main> | 298 | </main> |
| 299 | </div> | 299 | </div> |
| 300 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 300 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 301 | ··<script> | 301 | ··<script> |
| 302 | ··let·initialized·=·false; | 302 | ··let·initialized·=·false; |
| Offset 1417, 15 lines modified | Offset 1417, 15 lines modified | ||
| 1417 | ······<p·class="built-using"> | 1417 | ······<p·class="built-using"> |
| 1418 | ········Built·using | 1418 | ········Built·using |
| 1419 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1419 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1420 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1420 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1421 | ······</p> | 1421 | ······</p> |
| 1422 | <p>Copyright·©·1996-202 | 1422 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1423 | ····</footer> | 1423 | ····</footer> |
| 1424 | ··</div> | 1424 | ··</div> |
| 1425 | </main> | 1425 | </main> |
| 1426 | </div> | 1426 | </div> |
| 1427 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1427 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1428 | ··<script> | 1428 | ··<script> |
| 1429 | ··let·initialized·=·false; | 1429 | ··let·initialized·=·false; |
| Offset 1302, 15 lines modified | Offset 1302, 15 lines modified | ||
| 1302 | ······<p·class="built-using"> | 1302 | ······<p·class="built-using"> |
| 1303 | ········Built·using | 1303 | ········Built·using |
| 1304 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1304 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1305 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1305 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1306 | ······</p> | 1306 | ······</p> |
| 1307 | <p>Copyright·©·1996-202 | 1307 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1308 | ····</footer> | 1308 | ····</footer> |
| 1309 | ··</div> | 1309 | ··</div> |
| 1310 | </main> | 1310 | </main> |
| 1311 | </div> | 1311 | </div> |
| 1312 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1312 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1313 | ··<script> | 1313 | ··<script> |
| 1314 | ··let·initialized·=·false; | 1314 | ··let·initialized·=·false; |
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| 132 | works·like·a·regular·gen_server·module·and·creates·a·server·per·object.</p><p>NOTE:·Currently·no·form·of·inheritance·is·implemented.</p><p>The·user·module·should·export:</p><p>init(Args)·should·return<br/>{wxWindow,·State}·|·{wxWindow,·State,·Timeout}·|·ignore·|·{stop,·Reason}</p><p>Asynchronous·window·event·handling:<br/>handle_event(#wx{},·State)·should·return<br/>{noreply,·State}·|·{noreply,·State,·Timeout}·|·{stop,·Reason,·State}</p><p>The·user·module·can·export·the·following·callback·functions:</p><p>handle_call(Msg,·{From,·Tag},·State)·should·return<br/>{reply,·Reply,·State}·|·{reply,·Reply,·State,·Timeout}·|·{noreply,·State} | 132 | works·like·a·regular·gen_server·module·and·creates·a·server·per·object.</p><p>NOTE:·Currently·no·form·of·inheritance·is·implemented.</p><p>The·user·module·should·export:</p><p>init(Args)·should·return<br/>{wxWindow,·State}·|·{wxWindow,·State,·Timeout}·|·ignore·|·{stop,·Reason}</p><p>Asynchronous·window·event·handling:<br/>handle_event(#wx{},·State)·should·return<br/>{noreply,·State}·|·{noreply,·State,·Timeout}·|·{stop,·Reason,·State}</p><p>The·user·module·can·export·the·following·callback·functions:</p><p>handle_call(Msg,·{From,·Tag},·State)·should·return<br/>{reply,·Reply,·State}·|·{reply,·Reply,·State,·Timeout}·|·{noreply,·State} |
| 133 | |·{noreply,·State,·Timeout}·|·{stop,·Reason,·Reply,·State}</p><p>handle_cast(Msg,·State)·should·return<br/>{noreply,·State}·|·{noreply,·State,·Timeout}·|·{stop,·Reason,·State}</p><p>If·the·above·are·not·exported·but·called,·the·wx_object·process·will·crash.·The | 133 | |·{noreply,·State,·Timeout}·|·{stop,·Reason,·Reply,·State}</p><p>handle_cast(Msg,·State)·should·return<br/>{noreply,·State}·|·{noreply,·State,·Timeout}·|·{stop,·Reason,·State}</p><p>If·the·above·are·not·exported·but·called,·the·wx_object·process·will·crash.·The |
| 134 | user·module·can·also·export:</p><p>Info·is·message·e.g.·{'EXIT',·P,·R},·{nodedown,·N},·...<br/>handle_info(Info,·State)·should·return·,·...<br/>{noreply,·State}·|·{noreply,·State,·Timeout}·|·{stop,·Reason,·State}</p><p>If·a·message·is·sent·to·the·wx_object·process·when·handle_info·is·not·exported, | 134 | user·module·can·also·export:</p><p>Info·is·message·e.g.·{'EXIT',·P,·R},·{nodedown,·N},·...<br/>handle_info(Info,·State)·should·return·,·...<br/>{noreply,·State}·|·{noreply,·State,·Timeout}·|·{stop,·Reason,·State}</p><p>If·a·message·is·sent·to·the·wx_object·process·when·handle_info·is·not·exported, |
| 135 | the·message·will·be·dropped·and·ignored.</p><p>When·stop·is·returned·in·one·of·the·functions·above·with·Reason·=·normal·| | 135 | the·message·will·be·dropped·and·ignored.</p><p>When·stop·is·returned·in·one·of·the·functions·above·with·Reason·=·normal·| |
| 136 | shutdown·|·Term,·terminate(State)·is·called.·It·lets·the·user·module·clean·up, | 136 | shutdown·|·Term,·terminate(State)·is·called.·It·lets·the·user·module·clean·up, |
| 137 | it·is·always·called·when·server·terminates·or·when·wx_object()·in·the·driver·is | 137 | it·is·always·called·when·server·terminates·or·when·wx_object()·in·the·driver·is |
| 138 | deleted.·If·the·Parent·process·terminates·the·Module:terminate/2·function·is | 138 | deleted.·If·the·Parent·process·terminates·the·Module:terminate/2·function·is |
| 139 | called.<br/>terminate(Reason,·State)</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">··</span><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="70 | 139 | called.<br/>terminate(Reason,·State)</p><p>Example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">··</span><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="8703916970-1">(</span><span·class="ss">myDialog</span><span·class="p"·data-group-id="8703916970-1">)</span><span·class="p">.</span><span·class="w"> |
| 140 | </span><span·class="w">··</span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="70 | 140 | </span><span·class="w">··</span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="8703916970-2">(</span><span·class="p"·data-group-id="8703916970-3">[</span><span·class="ss">new</span><span·class="p">/</span><span·class="mi">2</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">show</span><span·class="p">/</span><span[·...·truncated·by·diffoscope;·len:·242,·SHA:·707bf2d2318cf7582adad84d6ecb5ab259a058fcc49016425b1eebb97915eb38·...·]-2">)</span><span·class="p">.</span><span·class="w">··</span><span·class="c1">%%·API</span><span·class="w"> |
| 141 | </span><span·class="w">··</span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="70 | 141 | </span><span·class="w">··</span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="8703916970-4">(</span><span·class="p"·data-group-id="8703916970-5">[</span><span·class="ss">init</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">handle_call</span><span·class="p">/</span><span·class="mi">3</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">handle_event</span><span·class="p">/</span><span·class="mi">2</span><span·class="p">,</span><span·class="w"> |
| 142 | ···········</span><span·class="ss">handle_info</span><span·class="p">/</span><span·class="mi">2</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">code_change</span><span·class="p">/</span><span·class="mi">3</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">terminate</span><span·class="p">/</span><span·class="mi">2</span><span·class="p"·data-group-id="70 | 142 | ···········</span><span·class="ss">handle_info</span><span·class="p">/</span><span·class="mi">2</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">code_change</span><span·class="p">/</span><span·class="mi">3</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">terminate</span><span·class="p">/</span><span·class="mi">2</span><span·class="p"·data-group-id="8703916970-5">]</span><span·class="p"·data-group-id="8703916970-4">)</span><span·class="p">.</span><span·class="w"> |
| 143 | ···········</span><span·class="ss">new</span><span·class="p">/</span><span·class="mi">2</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">showModal</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">destroy</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">]</span><span·class="p">)</span><span·class="p">.</span><span·class="w">··</span><span·class="c1">%%·Callbacks</span><span·class="w"> | 143 | ···········</span><span·class="ss">new</span><span·class="p">/</span><span·class="mi">2</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">showModal</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">destroy</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">]</span><span·class="p">)</span><span·class="p">.</span><span·class="w">··</span><span·class="c1">%%·Callbacks</span><span·class="w"> |
| 144 | ··</span><span·class="c1">%%·Client·API</span><span·class="w"> | 144 | ··</span><span·class="c1">%%·Client·API</span><span·class="w"> |
| 145 | ··</span><span·class="nf">new</span><span·class="p"·data-group-id="70 | 145 | ··</span><span·class="nf">new</span><span·class="p"·data-group-id="8703916970-6">(</span><span·class="n">Parent</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Msg</span><span·class="p"·data-group-id="8703916970-6">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 146 | ·····</span><span·class="nc">wx_object</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id="70 | 146 | ·····</span><span·class="nc">wx_object</span><span·class="p">:</span><span·class="nf">start</span><span·class="p"·data-group-id="8703916970-7">(</span><span·class="o">?</span><span·class="n">MODULE</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="8703916970-8">[</span><span·class="n">Parent</span><span·class="p">,</span><span·class="n">Id</span><s[·...·truncated·by·diffoscope;·len:·246,·SHA:·220818392399410b0b6d7d08e722ec63860be9df45c7d1c11a6e4f8780fe1d02·...·]-7">)</span><span·class="p">.</span><span·class="w"> |
| 147 | ··</span><span·class="nf">show</span><span·class="p"·data-group-id="70 | 147 | ··</span><span·class="nf">show</span><span·class="p"·data-group-id="8703916970-10">(</span><span·class="n">Dialog</span><span·class="p"·data-group-id="8703916970-10">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 148 | ·····</span><span·class="nc">wx_object</span><span·class="p">:</span><span·class="nf">call</span><span·class="p"·data-group-id="70 | 148 | ·····</span><span·class="nc">wx_object</span><span·class="p">:</span><span·class="nf">call</span><span·class="p"·data-group-id="8703916970-11">(</span><span·class="n">Dialog</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">show_modal</span><span·class="p"·data-group-id="8703916970-11">)</span><span·class="p">.</span><span·class="w"> |
| 149 | ··</span><span·class="nf">destroy</span><span·class="p"·data-group-id="70 | 149 | ··</span><span·class="nf">destroy</span><span·class="p"·data-group-id="8703916970-12">(</span><span·class="n">Dialog</span><span·class="p"·data-group-id="8703916970-12">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 150 | ·····</span><span·class="nc">wx_object</span><span·class="p">:</span><span·class="nf">call</span><span·class="p"·data-group-id="70 | 150 | ·····</span><span·class="nc">wx_object</span><span·class="p">:</span><span·class="nf">call</span><span·class="p"·data-group-id="8703916970-13">(</span><span·class="n">Dialog</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">destroy</span><span·class="p"·data-group-id="8703916970-13">)</span><span·class="p">.</span><span·class="w"> |
| 151 | ··</span><span·class="c1">%%·Server·Implementation·ala·gen_server</span><span·class="w"> | 151 | ··</span><span·class="c1">%%·Server·Implementation·ala·gen_server</span><span·class="w"> |
| 152 | ··</span><span·class="nf">init</span><span·class="p"·data-group-id="70 | 152 | ··</span><span·class="nf">init</span><span·class="p"·data-group-id="8703916970-14">(</span><span·class="p"·data-group-id="8703916970-15">[</span><span·class="n">Parent</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Str</span><span·class="p"·data-group-id="8703916970-15">]</span><span·class="p"·data-g[·...·truncated·by·diffoscope;·len:·19,·SHA:·5d56c3d0c40b1d1dfd79e0fefa15b5307e9af9abb95397b95e1115b92521c575·...·]-14">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 153 | ·····</span><span·class="n">Dialog</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">wxDialog</span><span·class="p">:</span><span·class="nf">new</span><span·class="p"·data-group-id="70 | 153 | ·····</span><span·class="n">Dialog</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">wxDialog</span><span·class="p">:</span><span·class="nf">new</span><span·class="p"·data-group-id="8703916970-16">(</span><span·class="n">Parent</span><span·class="p">,</span><span·class="w">·</span><span·class="mi">42</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"Testing"</span><span·class="p">,</span><span·class="w">[·...·truncated·by·diffoscope;·len:·157,·SHA:·51109488f6fa114e2970bc17d984e950f30c0db52c9c8603e9d368d2fe21ba4c·...·]-16">)</span><span·class="p">,</span><span·class="w"> |
| 154 | ·····</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> | 154 | ·····</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> |
| 155 | ·····</span><span·class="nc">wxDialog</span><span·class="p">:</span><span·class="nf">connect</span><span·class="p"·data-group-id="70 | 155 | ·····</span><span·class="nc">wxDialog</span><span·class="p">:</span><span·class="nf">connect</span><span·class="p"·data-group-id="8703916970-18">(</span><span·class="n">Dialog</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">command_button_clicked</span><span·class="p"·data-group-id="8703916970-18">)</span><span·class="p">,</span><span·class="w"> |
| 156 | ·····</span><span·class="p"·data-group-id="70 | 156 | ·····</span><span·class="p"·data-group-id="8703916970-19">{</span><span·class="n">Dialog</span><span·class="p">,</span><span·class="w">·</span><span·class="n">MyState</span><span·class="p"·data-group-id="8703916970-19">}</span><span·class="p">.</span><span·class="w"> |
| 157 | ··</span><span·class="nf">handle_call</span><span·class="p"·data-group-id="70 | 157 | ··</span><span·class="nf">handle_call</span><span·class="p"·data-group-id="8703916970-20">(</span><span·class="ss">show</span><span·class="p">,</span><span·class="w">·</span><span·class="p">_</span><span·class="n">From</span><span·class="p">,</span><span·class="w">·</span><span·class="n">State</span><span·class="p"·data-group-id=[·...·truncated·by·diffoscope;·len:·11,·SHA:·40014dd09b5a4eed7289dee63bc65cb52854895a2dc7f23e1e736884ffc73b2c·...·]-20">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 158 | ·····</span><span·class="nc">wxDialog</span><span·class="p">:</span><span·class="nf">show</span><span·class="p"·data-group-id="70 | 158 | ·····</span><span·class="nc">wxDialog</span><span·class="p">:</span><span·class="nf">show</span><span·class="p"·data-group-id="8703916970-21">(</span><span·class="n">State</span><span·class="o">#</span><span·class="ss">state</span><span·class="p">.</span><span·class="ss">win</span><span·class="p"·data-group-id="8703916970-21">)</span><span·class="p">,</span><span·class="w"> |
| 159 | ·····</span><span·class="p"·data-group-id="70 | 159 | ·····</span><span·class="p"·data-group-id="8703916970-22">{</span><span·class="ss">reply</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="n">State</span><span·class="p"·data-group-id="8703916970-22">}</span><span·class="p">;</span><span·class="w"> |
| 160 | ··</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> | 160 | ··</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w"> |
| 161 | ··</span><span·class="nf">handle_event</span><span·class="p"·data-group-id="70 | 161 | ··</span><span·class="nf">handle_event</span><span·class="p"·data-group-id="8703916970-23">(</span><span·class="o">#</span><span·class="ss">wx</span><span·class="p"·data-group-id="8703916970-24">{</span><span·class="p"·data-group-id="8703916970-24">}</span><span·class="p">,</span><span·class="w">·</span><span·class="n">State</span[·...·truncated·by·diffoscope;·len:·42,·SHA:·9b68860384f3c76b51eb295c9543762a50e05be77ffb0341b486e4e1db0d77e5·...·]-23">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 162 | ·····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="70 | 162 | ·····</span><span·class="nc">io</span><span·class="p">:</span><span·class="nf">format</span><span·class="p"·data-group-id="8703916970-25">(</span><span·class="s">"Users·clicked·button</span><span·class="si">~n</span><span·class="s">"</span><span·class="p">,</span><span·class="p"·data-group-id="8703916970-26">[</span><span·class="p"·data-group-id="8703916970-26">]</sp[·...·truncated·by·diffoscope;·len:·44,·SHA:·03c5b423d6a2da280288522b1232b4d78fd7e4341b79549170f78eaa63b8d2d3·...·]-25">)</span><span·class="p">,</span><span·class="w"> |
| 163 | ·····</span><span·class="p"·data-group-id="70 | 163 | ·····</span><span·class="p"·data-group-id="8703916970-27">{</span><span·class="ss">noreply</span><span·class="p">,</span><span·class="w">·</span><span·class="n">State</span><span·class="p"·data-group-id="8703916970-27">}</span><span·class="p">;</span><span·class="w"> |
| 164 | ··</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span></code></pre><h2·id="module-data-types"·class="section-heading"> | 164 | ··</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span></code></pre><h2·id="module-data-types"·class="section-heading"> |
| 165 | ··<a·href="#module-data-types"·class="hover-link"> | 165 | ··<a·href="#module-data-types"·class="hover-link"> |
| 166 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 166 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 167 | ··</a> | 167 | ··</a> |
| 168 | ··<span·class="text">DATA·TYPES</span> | 168 | ··<span·class="text">DATA·TYPES</span> |
| 169 | </h2> | 169 | </h2> |
| 170 | <ul><li><p><strong><a·href=""·id="type-request_id"></a>·request_id()·=·term()</strong></p></li><li><p><strong><a·href=""·id="type-server_ref"></a>·server_ref()·= | 170 | <ul><li><p><strong><a·href=""·id="type-request_id"></a>·request_id()·=·term()</strong></p></li><li><p><strong><a·href=""·id="type-server_ref"></a>·server_ref()·= |
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| 1319 | ······<p·class="built-using"> | 1319 | ······<p·class="built-using"> |
| 1320 | ········Built·using | 1320 | ········Built·using |
| 1321 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1321 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1322 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1322 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1323 | ······</p> | 1323 | ······</p> |
| 1324 | <p>Copyright·©·1996-202 | 1324 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1325 | ····</footer> | 1325 | ····</footer> |
| 1326 | ··</div> | 1326 | ··</div> |
| 1327 | </main> | 1327 | </main> |
| 1328 | </div> | 1328 | </div> |
| 1329 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1329 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1330 | ··<script> | 1330 | ··<script> |
| 1331 | ··let·initialized·=·false; | 1331 | ··let·initialized·=·false; |
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| 139 | ······<p·class="built-using"> | 139 | ······<p·class="built-using"> |
| 140 | ········Built·using | 140 | ········Built·using |
| 141 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 141 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 142 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 142 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 143 | ······</p> | 143 | ······</p> |
| 144 | <p>Copyright·©·1996-202 | 144 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 145 | ····</footer> | 145 | ····</footer> |
| 146 | ··</div> | 146 | ··</div> |
| 147 | </main> | 147 | </main> |
| 148 | </div> | 148 | </div> |
| 149 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 149 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 150 | ··<script> | 150 | ··<script> |
| 151 | ··let·initialized·=·false; | 151 | ··let·initialized·=·false; |
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| 231 | ······<p·class="built-using"> | 231 | ······<p·class="built-using"> |
| 232 | ········Built·using | 232 | ········Built·using |
| 233 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 233 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 234 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 234 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 235 | ······</p> | 235 | ······</p> |
| 236 | <p>Copyright·©·1996-202 | 236 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 237 | ····</footer> | 237 | ····</footer> |
| 238 | ··</div> | 238 | ··</div> |
| 239 | </main> | 239 | </main> |
| 240 | </div> | 240 | </div> |
| 241 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 241 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 242 | ··<script> | 242 | ··<script> |
| 243 | ··let·initialized·=·false; | 243 | ··let·initialized·=·false; |
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| 1413 | ······<p·class="built-using"> | 1413 | ······<p·class="built-using"> |
| 1414 | ········Built·using | 1414 | ········Built·using |
| 1415 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1415 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1416 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1416 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1417 | ······</p> | 1417 | ······</p> |
| 1418 | <p>Copyright·©·1996-202 | 1418 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1419 | ····</footer> | 1419 | ····</footer> |
| 1420 | ··</div> | 1420 | ··</div> |
| 1421 | </main> | 1421 | </main> |
| 1422 | </div> | 1422 | </div> |
| 1423 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1423 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1424 | ··<script> | 1424 | ··<script> |
| 1425 | ··let·initialized·=·false; | 1425 | ··let·initialized·=·false; |
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| 137 | ······<p·class="built-using"> | 137 | ······<p·class="built-using"> |
| 138 | ········Built·using | 138 | ········Built·using |
| 139 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 139 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 140 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 140 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 141 | ······</p> | 141 | ······</p> |
| 142 | <p>Copyright·©·1996-202 | 142 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 143 | ····</footer> | 143 | ····</footer> |
| 144 | ··</div> | 144 | ··</div> |
| 145 | </main> | 145 | </main> |
| 146 | </div> | 146 | </div> |
| 147 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 147 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 148 | ··<script> | 148 | ··<script> |
| 149 | ··let·initialized·=·false; | 149 | ··let·initialized·=·false; |
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| 1096 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 1096 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 1097 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 1097 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 1098 | ······</p> | 1098 | ······</p> |
| 1099 | <p>Copyright·©·1996-202 | 1099 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1100 | ····</footer> | 1100 | ····</footer> |
| 1101 | ··</div> | 1101 | ··</div> |
| 1102 | </main> | 1102 | </main> |
| 1103 | </div> | 1103 | </div> |
| 1104 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1104 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 1105 | ··<script> | 1105 | ··<script> |
| 1106 | ··let·initialized·=·false; | 1106 | ··let·initialized·=·false; |
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| 538 | ······<p·class="built-using"> | 538 | ······<p·class="built-using"> |
| 539 | ········Built·using | 539 | ········Built·using |
| 540 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 540 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 541 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 541 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 542 | ······</p> | 542 | ······</p> |
| 543 | <p>Copyright·©·1996-202 | 543 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 544 | ····</footer> | 544 | ····</footer> |
| 545 | ··</div> | 545 | ··</div> |
| 546 | </main> | 546 | </main> |
| 547 | </div> | 547 | </div> |
| 548 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 548 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 549 | ··<script> | 549 | ··<script> |
| 550 | ··let·initialized·=·false; | 550 | ··let·initialized·=·false; |
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| 142 | forms·are·<code·class="inline">{Tag, Fun}</code>,·or·<code·class="inline">{Tag, Fun, LocalState}</code>.·The·second·form·can·be·used | 142 | forms·are·<code·class="inline">{Tag, Fun}</code>,·or·<code·class="inline">{Tag, Fun, LocalState}</code>.·The·second·form·can·be·used |
| 143 | to·initialize·the·state·variable·in·question.</p><h4>1.1·User·State</h4><p>All·customization·functions·are·free·to·access·a·"User·state"·variable.·Care | 143 | to·initialize·the·state·variable·in·question.</p><h4>1.1·User·State</h4><p>All·customization·functions·are·free·to·access·a·"User·state"·variable.·Care |
| 144 | must·of·course·be·taken·to·coordinate·the·use·of·this·state.·It·is·recommended | 144 | must·of·course·be·taken·to·coordinate·the·use·of·this·state.·It·is·recommended |
| 145 | that·functions,·which·do·not·really·have·anything·to·contribute·to·the·"global" | 145 | that·functions,·which·do·not·really·have·anything·to·contribute·to·the·"global" |
| 146 | user·state,·use·their·own·state·variable·instead.·Another·option·(used·in·e.g. | 146 | user·state,·use·their·own·state·variable·instead.·Another·option·(used·in·e.g. |
| 147 | <code·class="inline">xmerl_eventp.erl</code>)·is·for·customization·functions·to·share·one·of·the·local | 147 | <code·class="inline">xmerl_eventp.erl</code>)·is·for·customization·functions·to·share·one·of·the·local |
| 148 | states·(in·<code·class="inline">xmerl_eventp.erl</code>,·the·continuation·function·and·the·fetch·function | 148 | states·(in·<code·class="inline">xmerl_eventp.erl</code>,·the·continuation·function·and·the·fetch·function |
| 149 | both·access·the·cont_state.)</p><p>Functions·to·access·user·state:</p><ul><li>··<code·class="inline">xmerl_scan:user_state(GlobalState)</code></li><li>··<code·class="inline">xmerl_scan:user_state(UserState,·GlobalState)</code></li></ul><h4>1.2·Event·Function</h4><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 149 | both·access·the·cont_state.)</p><p>Functions·to·access·user·state:</p><ul><li>··<code·class="inline">xmerl_scan:user_state(GlobalState)</code></li><li>··<code·class="inline">xmerl_scan:user_state(UserState,·GlobalState)</code></li></ul><h4>1.2·Event·Function</h4><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="3127839018-1">{</span><span·class="ss">event_fun</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id="3127839018-2">(</span><span·class="p"·data-group-id="3127839018-2">)</span><span·class="p"·data[·...·truncated·by·diffoscope;·len:·494,·SHA:·1b3b9af5b01091a2cd9f2404baf68ea438011160f8ebce372449bd29f6d13b62·...·]-3">}</span></code></pre><p>The·event·function·is·called·at·the·beginning·and·at·the·end·of·a·parsed·entity. |
| 150 | It·has·the·following·format·and·semantics:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">fun</span><span·class="p"·data-group-id=" | 150 | It·has·the·following·format·and·semantics:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">fun</span><span·class="p"·data-group-id="5500530772-1">(</span><span·class="n">Event</span><span·class="p">,</span><span·class="w">·</span><span·class="n">GlobalState</span><span·class="p"·data-group-id="5500530772-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 151 | ···</span><span·class="n">EventState</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">xmerl_scan</span><span·class="p">:</span><span·class="nf">event_state</span><span·class="p"·data-group-id=" | 151 | ···</span><span·class="n">EventState</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">xmerl_scan</span><span·class="p">:</span><span·class="nf">event_state</span><span·class="p"·data-group-id="5500530772-2">(</span><span·class="n">GlobalState</span><span·class="p"·data-group-id="5500530772-2">)</span><span·class="p">,</span><span·class="w"> |
| 152 | ···</span><span·class="n">EventState2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">foo</span><span·class="p"·data-group-id=" | 152 | ···</span><span·class="n">EventState2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">foo</span><span·class="p"·data-group-id="5500530772-3">(</span><span·class="n">Event</span><span·class="p">,</span><span·class="w">·</span><span·class="n">EventState</span><span·class="p"·data-group-id="5500530772-3">)</span><span·class="p">,</span><span·class="w"> |
| 153 | ···</span><span·class="n">GlobalState2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">xmerl_scan</span><span·class="p">:</span><span·class="nf">event_state</span><span·class="p"·data-group-id=" | 153 | ···</span><span·class="n">GlobalState2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">xmerl_scan</span><span·class="p">:</span><span·class="nf">event_state</span><span·class="p"·data-group-id="5500530772-4">(</span><span·class="n">EventState2</span><span·class="p">,</span><span·class="w">·</span><span·class="n">GlobalState</span><span·class="p"·data-group-id="5500530772-4">)</span><span·class="w"> |
| 154 | </span><span·class="k">end</span><span·class="p">.</span></code></pre><h4>1.3·Hook·Function</h4><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 154 | </span><span·class="k">end</span><span·class="p">.</span></code></pre><h4>1.3·Hook·Function</h4><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="3797927608-1">{</span><span·class="ss">hook_fun</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id="3797927608-2">(</span><span·class="p"·data-group-id="3797927608-2">)</span><span·class="p"·data-[·...·truncated·by·diffoscope;·len:·491,·SHA:·18b58ffbe36914d30addef93d33db72979f4cc40cb0a2107b944dea4cacd4385·...·]-3">}</span></code></pre><p>The·hook·function·is·called·when·the·processor·has·parsed·a·complete·entity. |
| 155 | Format·and·semantics:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">fun</span><span·class="p"·data-group-id=" | 155 | Format·and·semantics:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">fun</span><span·class="p"·data-group-id="0004699314-1">(</span><span·class="n">Entity</span><span·class="p">,</span><span·class="w">·</span><span·class="n">GlobalState</span><span·class="p"·data-group-id="0004699314-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 156 | ···</span><span·class="n">HookState</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">xmerl_scan</span><span·class="p">:</span><span·class="nf">hook_state</span><span·class="p"·data-group-id=" | 156 | ···</span><span·class="n">HookState</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">xmerl_scan</span><span·class="p">:</span><span·class="nf">hook_state</span><span·class="p"·data-group-id="0004699314-2">(</span><span·class="n">GlobalState</span><span·class="p"·data-group-id="0004699314-2">)</span><span·class="p">,</span><span·class="w"> |
| 157 | ···</span><span·class="p"·data-group-id=" | 157 | ···</span><span·class="p"·data-group-id="0004699314-3">{</span><span·class="n">TransformedEntity</span><span·class="p">,</span><span·class="w">·</span><span·class="n">HookState2</span><span·class="p"·data-group-id="0004699314-3">}</span><span·class="w">·</span><span·class="o">=</span><span·class=[·...·truncated·by·diffoscope;·len:·242,·SHA:·6334b869b62ce32bb2ed50ab76876b51335dd49a1bda56e994b238084feabd55·...·]-4">)</span><span·class="p">,</span><span·class="w"> |
| 158 | ···</span><span·class="n">GlobalState2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">xmerl_scan</span><span·class="p">:</span><span·class="nf">hook_state</span><span·class="p"·data-group-id=" | 158 | ···</span><span·class="n">GlobalState2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">xmerl_scan</span><span·class="p">:</span><span·class="nf">hook_state</span><span·class="p"·data-group-id="0004699314-5">(</span><span·class="n">HookState2</span><span·class="p">,</span><span·class="w">·</span><span·class="n">GlobalState</span><span·class="p"·data-group-id="0004699314-5">)</span><span·class="p">,</span><span·class="w"> |
| 159 | ···</span><span·class="p"·data-group-id=" | 159 | ···</span><span·class="p"·data-group-id="0004699314-6">{</span><span·class="n">TransformedEntity</span><span·class="p">,</span><span·class="w">·</span><span·class="n">GlobalState2</span><span·class="p"·data-group-id="0004699314-6">}</span><span·class="w"> |
| 160 | </span><span·class="k">end</span><span·class="p">.</span></code></pre><p>The·relationship·between·the·event·function,·the·hook·function·and·the | 160 | </span><span·class="k">end</span><span·class="p">.</span></code></pre><p>The·relationship·between·the·event·function,·the·hook·function·and·the |
| 161 | accumulator·function·is·as·follows:</p><ol><li>·The·event·function·is·first·called·with·an·'ended'·event·for·the·parsed | 161 | accumulator·function·is·as·follows:</p><ol><li>·The·event·function·is·first·called·with·an·'ended'·event·for·the·parsed |
| 162 | entity.</li><li>·The·hook·function·is·called,·possibly·re-formatting·the·entity.</li><li>·The·acc·function·is·called·in·order·to·(optionally)·add·the·re-formatted | 162 | entity.</li><li>·The·hook·function·is·called,·possibly·re-formatting·the·entity.</li><li>·The·acc·function·is·called·in·order·to·(optionally)·add·the·re-formatted |
| 163 | entity·to·the·contents·of·its·parent·element.</li></ol><h4>1.4·Fetch·Function</h4><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 163 | entity·to·the·contents·of·its·parent·element.</li></ol><h4>1.4·Fetch·Function</h4><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="2204373529-1">{</span><span·class="ss">fetch_fun</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id="2204373529-2">(</span><span·class="p"·data-group-id="2204373529-2">)</span><span·class="p"·data[·...·truncated·by·diffoscope;·len:·494,·SHA:·32f374b6071a340c9cbb916f40f8d4d52c93012789003e038acae76832eab274·...·]-3">}</span></code></pre><p>The·fetch·function·is·called·in·order·to·fetch·an·external·resource·(e.g.·a |
| 164 | DTD).</p><p>The·fetch·function·can·respond·with·three·different·return·values:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Result</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:=</span><span·class="w"> | 164 | DTD).</p><p>The·fetch·function·can·respond·with·three·different·return·values:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">Result</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:=</span><span·class="w"> |
| 165 | ···</span><span·class="p"·data-group-id=" | 165 | ···</span><span·class="p"·data-group-id="1112848220-1">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1112848220-2">{</span><span·class="ss">file</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Filename</span>[·...·truncated·by·diffoscope;·len:·179,·SHA:·3e77921ca10a9df2428e804212d05753e248aea04ebbfa943f0bc19e9863bd97·...·]-1">}</span><span·class="w">·</span><span·class="p">|</span><span·class="w"> |
| 166 | ···</span><span·class="p"·data-group-id=" | 166 | ···</span><span·class="p"·data-group-id="1112848220-3">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="p"·data-group-id="1112848220-4">{</span><span·class="ss">string</span><span·class="p">,</span><span·class="w">·</span><span·class="n">String</span>[·...·truncated·by·diffoscope;·len:·179,·SHA:·ab8fee3a49779d441ea2f0f2dac20e426d8f9706e4ea3a359ea3cd136418a37b·...·]-3">}</span><span·class="w">·</span><span·class="p">|</span><span·class="w"> |
| 167 | ···</span><span·class="p"·data-group-id=" | 167 | ···</span><span·class="p"·data-group-id="1112848220-5">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">not_fetched</span><span·class="p">,</span><span·class="w">·</span><span·class="n">NewGlobalState</span><span·class="p"·data-group-id="111284822[·...·truncated·by·diffoscope;·len:·331,·SHA:·0502b30837b73ca497735708b85a2e86e8c9280a6983c497b7e85fcac7b145b2·...·]-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 168 | ···</span><span·class="n">FetchState</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">xmerl_scan</span><span·class="p">:</span><span·class="nf">fetch_state</span><span·class="p"·data-group-id=" | 168 | ···</span><span·class="n">FetchState</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">xmerl_scan</span><span·class="p">:</span><span·class="nf">fetch_state</span><span·class="p"·data-group-id="2366320515-2">(</span><span·class="n">GlobalState</span><span·class="p"·data-group-id="2366320515-2">)</span><span·class="p">,</span><span·class="w"> |
| 169 | ···</span><span·class="n">Result</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">foo</span><span·class="p"·data-group-id=" | 169 | ···</span><span·class="n">Result</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">foo</span><span·class="p"·data-group-id="2366320515-3">(</span><span·class="n">URI</span><span·class="p">,</span><span·class="w">·</span><span·class="n">FetchState</span><span·class="p"·data-group-id="2366320515-3">)</span><span·class="p">.</span><span·class="w">··</span><span·class="c1">%·Result·being·one·of·the·above</span><span·class="w"> |
| 170 | </span><span·class="k">end</span><span·class="p">.</span></code></pre><h4>1.5·Continuation·Function</h4><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 170 | </span><span·class="k">end</span><span·class="p">.</span></code></pre><h4>1.5·Continuation·Function</h4><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="9433041697-1">{</span><span·class="ss">continuation_fun</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id="9433041697-2">(</span><span·class="p"·data-group-id="9433041697-2">)</span><span·class="[·...·truncated·by·diffoscope;·len:·515,·SHA:·3b55d267e92fff3feaae1f159237517a6da4169567f804fa2c0fe8e9ddc2525b·...·]-3">}</span></code></pre><p>The·continuation·function·is·called·when·the·parser·encounters·the·end·of·the |
| 171 | byte·stream.·Format·and·semantics:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">fun</span><span·class="p"·data-group-id=" | 171 | byte·stream.·Format·and·semantics:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">fun</span><span·class="p"·data-group-id="5721517266-1">(</span><span·class="n">Continue</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Exception</span><span·class="p">,</span><span·class="w">·</span><span·class="n">GlobalState</span><span·class="p"·data-group-id="5721517266-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 172 | ···</span><span·class="n">ContState</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">xmerl_scan</span><span·class="p">:</span><span·class="nf">cont_state</span><span·class="p"·data-group-id=" | 172 | ···</span><span·class="n">ContState</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">xmerl_scan</span><span·class="p">:</span><span·class="nf">cont_state</span><span·class="p"·data-group-id="5721517266-2">(</span><span·class="n">GlobalState</span><span·class="p"·data-group-id="5721517266-2">)</span><span·class="p">,</span><span·class="w"> |
| 173 | ···</span><span·class="p"·data-group-id=" | 173 | ···</span><span·class="p"·data-group-id="5721517266-3">{</span><span·class="n">Result</span><span·class="p">,</span><span·class="w">·</span><span·class="n">ContState2</span><span·class="p"·data-group-id="5721517266-3">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span[·...·truncated·by·diffoscope;·len:·165,·SHA:·242c4befe68a7c01d41beaf16b6555ae4ca3ca1efe0bd279918cb819f6b5e960·...·]-4">)</span><span·class="p">,</span><span·class="w"> |
| 174 | ···</span><span·class="k">case</span><span·class="w">·</span><span·class="n">Result</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> | 174 | ···</span><span·class="k">case</span><span·class="w">·</span><span·class="n">Result</span><span·class="w">·</span><span·class="k">of</span><span·class="w"> |
| 175 | ······</span><span·class="p"·data-group-id=" | 175 | ······</span><span·class="p"·data-group-id="5721517266-5">[</span><span·class="p"·data-group-id="5721517266-5">]</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 176 | ·········</span><span·class="n">GlobalState2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">xmerl_scan</span><span·class="p">:</span><span·class="nf">cont_state</span><span·class="p"·data-group-id=" | 176 | ·········</span><span·class="n">GlobalState2</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">xmerl_scan</span><span·class="p">:</span><span·class="nf">cont_state</span><span·class="p"·data-group-id="5721517266-6">(</span><span·class="n">ContState2</span><span·class="p">,</span><span·class="w">·</span><span·class="n">GlobalState</span><span·class="p"·data-group-id="5721517266-6">)</span><span·class="p">,</span><span·class="w"> |
| 177 | ·········</span><span·class="n">Exception</span><span·class="p"·data-group-id=" | 177 | ·········</span><span·class="n">Exception</span><span·class="p"·data-group-id="5721517266-7">(</span><span·class="n">GlobalState2</span><span·class="p"·data-group-id="5721517266-7">)</span><span·class="p">;</span><span·class="w"> |
| 178 | ······</span><span·class="n">MoreBytes</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> | 178 | ······</span><span·class="n">MoreBytes</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 179 | ·········</span><span·class="p"·data-group-id=" | 179 | ·········</span><span·class="p"·data-group-id="5721517266-8">{</span><span·class="n">MoreBytes2</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Rest</span><span·class="p"·data-group-id="5721517266-8">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><[·...·truncated·by·diffoscope;·len:·171,·SHA:·b7d2dd34cf1ae983f5da9e58509ea291da124f0a52870ab290aa535708a463d9·...·]-9">)</span><span·class="p">,</span><span·class="w"> |
| 180 | ·········</span><span·class="n">ContState3</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">update_cont_state</span><span·class="p"·data-group-id=" | 180 | ·········</span><span·class="n">ContState3</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nf">update_cont_state</span><span·class="p"·data-group-id="5721517266-10">(</span><span·class="n">Rest</span><span·class="p">,</span><span·class="w">·</span><span·class="n">ContState2</span><span·class="p"·data-group-id="5721517266-10">)</span><span·class="p">,</span><span·class="w"> |
| 181 | ·········</span><span·class="n">GlobalState3</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">xmerl_scan</span><span·class="p">:</span><span·class="nf">cont_state</span><span·class="p"·data-group-id=" | 181 | ·········</span><span·class="n">GlobalState3</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">xmerl_scan</span><span·class="p">:</span><span·class="nf">cont_state</span><span·class="p"·data-group-id="5721517266-11">(</span><span·class="n">ContState3</span><span·class="p">,</span><span·class="w">·</span><span·class="n">GlobalState</span><span·class="p"·data-group-id="5721517266-11">)</span><span·class="p">,</span><span·class="w"> |
| 182 | ·········</span><span·class="n">Continue</span><span·class="p"·data-group-id=" | 182 | ·········</span><span·class="n">Continue</span><span·class="p"·data-group-id="5721517266-12">(</span><span·class="n">MoreBytes2</span><span·class="p">,</span><span·class="w">·</span><span·class="n">GlobalState3</span><span·class="p"·data-group-id="5721517266-12">)</span><span·class="w"> |
| 183 | ···</span><span·class="k">end</span><span·class="w"> | 183 | ···</span><span·class="k">end</span><span·class="w"> |
| 184 | </span><span·class="k">end</span><span·class="p">.</span></code></pre><h4>1.6·Rules·Functions</h4><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="3887144763-1">{</span><span·class="ss">rules</span><span·class="p">,</span><span·class="w">·</span><span·class="n">ReadFun</span><span·class="w">·</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id="3887144763-2">(</span><span·class="p"·data-group-id="3887144763-2">)</span><span·class="p">,</span><span·class="w">·</span><span·class="n">WriteFun</span><span·class="w">·</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id="3887144763-3">(</span><span·class="p"·data-group-id="3887144763-3">)</span><span·class="p">,</span><span·class="w">·</span><span·class="n">RulesState</span><span·class="p"·data-group-id="3887144763-1">}</span><span·class="w">·</span><span·class="p">|</span><span·class="w"> | ||
| 185 | </span><span·class=" | 184 | </span><span·class="k">end</span><span·class="p">.</span></code></pre><h4>1.6·Rules·Functions</h4><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="1328700814-1">{</span><span·class="ss">rules</span><span·class="p">,</span><span·class="w">·</span>[·...·truncated·by·diffoscope;·len:·717,·SHA:·9292893af3eb99a972c6eb40f6082a83e3acb0086b4be4ae0b6eec25959408dd·...·] |
| 185 | </span><span·class="p"·data-group-id="1328700814-4">{</span><span·class="ss">rules</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Table</span><span·class="w">·</span><span·class="p">:</span><span·class="w">·</span><span·class="nf">ets</span><span·class="p"·data-group-id="1328700814-5">(</span><span·class="p"·data-group-id="1328700814-5">)</span><span·class="p"·data-group-id="1328700814-4">}</span></code></pre><p>The·rules·functions·take·care·of·storing·scanner·information·in·a·rules | ||
| 186 | database.·User-provided·rules·functions·may·opt·to·store·the·information·in | 186 | database.·User-provided·rules·functions·may·opt·to·store·the·information·in |
| 187 | mnesia,·or·perhaps·in·the·user_state(RulesState).</p><p>The·following·modes·exist:</p><ul><li>··If·the·user·doesn't·specify·an·option,·the·scanner·creates·an·ets·table,·and | 187 | mnesia,·or·perhaps·in·the·user_state(RulesState).</p><p>The·following·modes·exist:</p><ul><li>··If·the·user·doesn't·specify·an·option,·the·scanner·creates·an·ets·table,·and |
| 188 | uses·built-in·functions·to·read·and·write·data·to·it.·When·the·scanner·is | 188 | uses·built-in·functions·to·read·and·write·data·to·it.·When·the·scanner·is |
| 189 | done,·the·ets·table·is·deleted.</li><li>··If·the·user·specifies·an·ets·table·via·the·<code·class="inline">{rules, Table}</code>·option,·the | 189 | done,·the·ets·table·is·deleted.</li><li>··If·the·user·specifies·an·ets·table·via·the·<code·class="inline">{rules, Table}</code>·option,·the |
| 190 | scanner·uses·this·table.·When·the·scanner·is·done,·it·does·<em>not</em>·delete·the | 190 | scanner·uses·this·table.·When·the·scanner·is·done,·it·does·<em>not</em>·delete·the |
| 191 | table.</li><li>··If·the·user·specifies·read·and·write·functions,·the·scanner·will·use·them | 191 | table.</li><li>··If·the·user·specifies·read·and·write·functions,·the·scanner·will·use·them |
| 192 | instead.</li></ul><p>The·format·for·the·read·and·write·functions·are·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">·</span><span·class="n">WriteFun</span><span·class="p"·data-group-id=" | 192 | instead.</li></ul><p>The·format·for·the·read·and·write·functions·are·as·follows:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="w">·</span><span·class="n">WriteFun</span><span·class="p"·data-group-id="4760445272-1">(</span><span·class="n">Context</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Name</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Definition</span><span·class="p">,</span><span·class="w">·</span>[·...·truncated·by·diffoscope;·len:·74,·SHA:·b0979b941301ca9f871dad0da457e4d0bc6564682ef43ca2976457462ed9c197·...·]72-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">NewScannerState</span><span·class="p">.</span><span·class="w"> |
| 193 | ·</span><span·class="n">ReadFun</span><span·class="p"·data-group-id=" | 193 | ·</span><span·class="n">ReadFun</span><span·class="p"·data-group-id="4760445272-2">(</span><span·class="n">Context</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Name</span><span·class="p">,</span><span·class="w">·</span><span·class="n">ScannerState</span><span·class="p"·data-group-id="4760445272-2">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">Definition</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">undefined</span><span·class="p">.</span></code></pre><p>Here·is·a·summary·of·the·data·objects·currently·being·written·by·the·scanner:</p><table><thead><tr><th·style="text-align:·left;">Context</th><th·style="text-align:·left;">Key·Value</th><th·style="text-align:·left;">Definition</th></tr></thead><tbody><tr><td·style="text-align:·left;">notation</td><td·style="text-align:·left;">NotationName</td><td·style="text-align:·left;"><code·class="inline">{system, SL}·|·{public, PIDL, SL}</code></td></tr><tr><td·style="text-align:·left;">elem_def</td><td·style="text-align:·left;">ElementName</td><td·style="text-align:·left;"><code·class="inline">#xmlElement{content·=·ContentSpec}</code></td></tr><tr><td·style="text-align:·left;">parameter_entity</td><td·style="text-align:·left;">PEName</td><td·style="text-align:·left;"><code·class="inline">PEDef</code></td></tr><tr><td·style="text-align:·left;">entity</td><td·style="text-align:·left;">EntityName</td><td·style="text-align:·left;"><code·class="inline">EntityDef</code></td></tr></tbody></table><p><strong>·Table·1:</strong>·Scanner·data·objects</p><p>where</p><pre><code·class="makeup·erlang"·translate="no"><span·class="n">ContentSpec</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:=</span><span·class="w">·</span><span·class="ss">empty</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">any</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="n">ElemContent</span><span·class="w"> |
| 194 | </span><span·class="n">ElemContent</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 194 | </span><span·class="n">ElemContent</span><span·class="w">·</span><span·class="p">:</span><span·class="p">:=</span><span·class="w">·</span><span·class="p"·data-group-id="2086161083-1">{</span><span·class="n">Mode</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Elems</span><span·class="p"·data-group-id="2086161083-1">}</span><span·class="w"> |
| 195 | </span><span·class="n">Mode</span><span·class="w">········</span><span·class="p">:</span><span·class="p">:=</span><span·class="w">·</span><span·class="ss">seq</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">choice</span><span·class="w"> | 195 | </span><span·class="n">Mode</span><span·class="w">········</span><span·class="p">:</span><span·class="p">:=</span><span·class="w">·</span><span·class="ss">seq</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">choice</span><span·class="w"> |
| 196 | </span><span·class="n">Elems</span><span·class="w">·······</span><span·class="p">:</span><span·class="p">:=</span><span·class="w">·</span><span·class="p"·data-group-id=" | 196 | </span><span·class="n">Elems</span><span·class="w">·······</span><span·class="p">:</span><span·class="p">:=</span><span·class="w">·</span><span·class="p"·data-group-id="2086161083-2">[</span><span·class="n">Elem</span><span·class="p"·data-group-id="2086161083-2">]</span><span·class="w"> |
| 197 | </span><span·class="n">Elem</span><span·class="w">········</span><span·class="p">:</span><span·class="p">:=</span><span·class="w">·</span><span·class="ss">'#PCDATA'</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="n">Name</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="n">ElemContent</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id=" | 197 | </span><span·class="n">Elem</span><span·class="w">········</span><span·class="p">:</span><span·class="p">:=</span><span·class="w">·</span><span·class="ss">'#PCDATA'</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="n">Name</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="n">ElemContent</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="p"·data-group-id="2086161083-3">{</span><span·class="n">Occurrence</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Elems</span><span·class="p"·data-group-id="2086161083-3">}</span><span·class="w"> |
| 198 | </span><span·class="n">Occurrence</span><span·class="w">··</span><span·class="p">:</span><span·class="p">:=</span><span·class="w">·</span><span·class="ss">'*'</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">'?'</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">'+'</span></code></pre><p>NOTE:·<em>When·<Elem>·is·not·wrapped·with·<Occurrence>,·(Occurrence·=·once)·is | 198 | </span><span·class="n">Occurrence</span><span·class="w">··</span><span·class="p">:</span><span·class="p">:=</span><span·class="w">·</span><span·class="ss">'*'</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">'?'</span><span·class="w">·</span><span·class="p">|</span><span·class="w">·</span><span·class="ss">'+'</span></code></pre><p>NOTE:·<em>When·<Elem>·is·not·wrapped·with·<Occurrence>,·(Occurrence·=·once)·is |
| 199 | implied.</em></p><h4>1.7·Accumulator·Function</h4><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id=" | 199 | implied.</em></p><h4>1.7·Accumulator·Function</h4><pre><code·class="makeup·erlang"·translate="no"><span·class="p"·data-group-id="0390399623-1">{</span><span·class="ss">acc_fun</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id="0390399623-2">(</span><span·class="p"·data-group-id="0390399623-2">)</span><span·class="p"·data-g[·...·truncated·by·diffoscope;·len:·19,·SHA:·61c61e8717b28e108027e7312587ee76f60145bdb2520f74ac2f8669f09613c3·...·]-1">}</span></code></pre><p>The·accumulator·function·is·called·to·accumulate·the·contents·of·an·entity.When |
| 200 | parsing·very·large·files,·it·may·not·be·desirable·to·do·so.In·this·case,·an·acc | 200 | parsing·very·large·files,·it·may·not·be·desirable·to·do·so.In·this·case,·an·acc |
| 201 | function·can·be·provided·that·simply·doesn't·accumulate.</p><p>Note·that·it·is·possible·to·even·modify·the·parsed·entity·before·accumulating | 201 | function·can·be·provided·that·simply·doesn't·accumulate.</p><p>Note·that·it·is·possible·to·even·modify·the·parsed·entity·before·accumulating |
| 202 | it,·but·this·must·be·done·with·care.·xmerl_scan·performs·post-processing·of·the | 202 | it,·but·this·must·be·done·with·care.·xmerl_scan·performs·post-processing·of·the |
| 203 | element·for·namespace·management.·Thus,·the·element·must·keep·its·original | 203 | element·for·namespace·management.·Thus,·the·element·must·keep·its·original |
| 204 | structure·for·this·to·work.</p><p>The·acc·function·has·the·following·format·and·semantics:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%%·default·accumulating·acc·fun</span><span·class="w"> | 204 | structure·for·this·to·work.</p><p>The·acc·function·has·the·following·format·and·semantics:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="c1">%%·default·accumulating·acc·fun</span><span·class="w"> |
| 205 | </span><span·class="nf">fun</span><span·class="p"·data-group-id=" | 205 | </span><span·class="nf">fun</span><span·class="p"·data-group-id="6762434001-1">(</span><span·class="n">ParsedEntity</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Acc</span><span·class="p">,</span><span·class="w">·</span><span·class="n">GlobalState</span><span·class="p"·data-group-id="6762434001-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 206 | ···</span><span·class="p"·data-group-id=" | 206 | ···</span><span·class="p"·data-group-id="6762434001-2">{</span><span·class="p"·data-group-id="6762434001-3">[</span><span·class="n">ParsedEntity</span><span·class="p">|</span><span·class="n">Acc</span><span·class="p"·data-group-id="6762434001-3">]</span><span·class="p">,</span><span·class="w">·</[·...·truncated·by·diffoscope;·len:·80,·SHA:·3e00db9e6f8c78bcf0585a856a804108d2c9d46c7f0793d42852effbccc984c8·...·]-2">}</span><span·class="p">.</span><span·class="w"> |
| 207 | </span><span·class="c1">%%·non-accumulating·acc·fun</span><span·class="w"> | 207 | </span><span·class="c1">%%·non-accumulating·acc·fun</span><span·class="w"> |
| 208 | </span><span·class="nf">fun</span><span·class="p"·data-group-id=" | 208 | </span><span·class="nf">fun</span><span·class="p"·data-group-id="6762434001-4">(</span><span·class="n">ParsedEntity</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Acc</span><span·class="p">,</span><span·class="w">·</span><span·class="n">GlobalState</span><span·class="p"·data-group-id="6762434001-4">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 209 | ···</span><span·class="p"·data-group-id=" | 209 | ···</span><span·class="p"·data-group-id="6762434001-5">{</span><span·class="n">Acc</span><span·class="p">,</span><span·class="w">·</span><span·class="n">GlobalState</span><span·class="p"·data-group-id="6762434001-5">}</span><span·class="p">.</span></code></pre><h4>1.8·Close·Function</h4><p>The·close·function·is·called·when·a·document·(either·the·main·document·or·an |
| 210 | external·DTD)·has·been·completely·parsed.·When·xmerl_scan·was·started·using | 210 | external·DTD)·has·been·completely·parsed.·When·xmerl_scan·was·started·using |
| 211 | <code·class="inline">xmerl_scan:file/[1,2]</code>,·the·file·will·be·read·in·full,·and·closed·immediately, | 211 | <code·class="inline">xmerl_scan:file/[1,2]</code>,·the·file·will·be·read·in·full,·and·closed·immediately, |
| 212 | before·the·parsing·starts,·so·when·the·close·function·is·called,·it·will·not | 212 | before·the·parsing·starts,·so·when·the·close·function·is·called,·it·will·not |
| 213 | need·to·actually·close·the·file.·In·this·case,·the·close·function·will·be·a·good | 213 | need·to·actually·close·the·file.·In·this·case,·the·close·function·will·be·a·good |
| 214 | place·to·modify·the·state·variables.</p><p>Format·and·semantics:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">fun</span><span·class="p"·data-group-id=" | 214 | place·to·modify·the·state·variables.</p><p>Format·and·semantics:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">fun</span><span·class="p"·data-group-id="5831648548-1">(</span><span·class="n">GlobalState</span><span·class="p"·data-group-id="5831648548-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 215 | ···</span><span·class="n">GlobalState1</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w">··</span><span·class="c1">%·state·variables·may·be·altered</span></code></pre><h3·id="2-examples"·class="section-heading"> | 215 | ···</span><span·class="n">GlobalState1</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="p">.</span><span·class="w">··</span><span·class="c1">%·state·variables·may·be·altered</span></code></pre><h3·id="2-examples"·class="section-heading"> |
| 216 | ··<a·href="#2-examples"·class="hover-link"> | 216 | ··<a·href="#2-examples"·class="hover-link"> |
| 217 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 217 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 218 | ··</a> | 218 | ··</a> |
| 219 | ··<span·class="text">2·Examples</span> | 219 | ··<span·class="text">2·Examples</span> |
| 220 | </h3> | 220 | </h3> |
| 221 | <p>See·<code·class="inline">xmerl_test.erl</code>·for·more·examples.</p><h4>2.1·Handling·spaces</h4><p>The·following·sample·program·illustrates·three·ways·of·scanning·a·document:</p><ol><li>·the·default·scan,·which·leaves·whitespace·untouched</li><li>·normalizing·spaces</li><li>·normalizing·spaces,·then·removing·text·elements·that·only·contain·one·space.</li></ol><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id=" | 221 | <p>See·<code·class="inline">xmerl_test.erl</code>·for·more·examples.</p><h4>2.1·Handling·spaces</h4><p>The·following·sample·program·illustrates·three·ways·of·scanning·a·document:</p><ol><li>·the·default·scan,·which·leaves·whitespace·untouched</li><li>·normalizing·spaces</li><li>·normalizing·spaces,·then·removing·text·elements·that·only·contain·one·space.</li></ol><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">module</span><span·class="p"·data-group-id="5042960484-1">(</span><span·class="ss">tmp</span><span·class="p"·data-group-id="5042960484-1">)</span><span·class="p">.</span><span·class="w"> |
| 222 | </span><span·class="w"> | 222 | </span><span·class="w"> |
| 223 | </span><span·class="p">-</span><span·class="na">include</span><span·class="p"·data-group-id=" | 223 | </span><span·class="p">-</span><span·class="na">include</span><span·class="p"·data-group-id="5042960484-2">(</span><span·class="s">"xmerl.hrl"</span><span·class="p"·data-group-id="5042960484-2">)</span><span·class="p">.</span><span·class="w"> |
| 224 | </span><span·class="w"> | 224 | </span><span·class="w"> |
| 225 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id=" | 225 | </span><span·class="p">-</span><span·class="na">export</span><span·class="p"·data-group-id="5042960484-3">(</span><span·class="p"·data-group-id="5042960484-4">[</span><span·class="ss">file1</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">file2</span><span·class="p">/</span><s[·...·truncated·by·diffoscope;·len:·242,·SHA:·d72e310def1534018e676b7df655165bffa0f208bdde215c681423e84a9a0823·...·]4-3">)</span><span·class="p">.</span><span·class="w"> |
| 226 | </span><span·class="nf">file1</span><span·class="p"·data-group-id=" | 226 | </span><span·class="nf">file1</span><span·class="p"·data-group-id="5042960484-5">(</span><span·class="n">F</span><span·class="p"·data-group-id="5042960484-5">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="nc">xmerl_scan</span><span·class="p">:</span><span·class="nf">file</[·...·truncated·by·diffoscope;·len:·122,·SHA:·293071ba5927fd243f7bfb0ae654063f7a124a51c228151f1d5d137e7dd416c2·...·]4-6">)</span><span·class="p">.</span><span·class="w"> |
| 227 | </span><span·class="nf">file2</span><span·class="p"·data-group-id=" | 227 | </span><span·class="nf">file2</span><span·class="p"·data-group-id="5042960484-7">(</span><span·class="n">F</span><span·class="p"·data-group-id="5042960484-7">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="nc">xmerl_scan</span><span·class="p">:</span><span·class="nf">file</[·...·truncated·by·diffoscope;·len:·470,·SHA:·bf811a62a668fd3e913e684837e65047b4353170867e9341c3fe3bb26148804e·...·]4-8">)</span><span·class="p">.</span><span·class="w"> |
| 228 | </span><span·class="nf">file3</span><span·class="p"·data-group-id=" | 228 | </span><span·class="nf">file3</span><span·class="p"·data-group-id="5042960484-11">(</span><span·class="n">F</span><span·class="p"·data-group-id="5042960484-11">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w">·</span><span·class="n">Acc</span><span·class="w">·</span><span·class="o">=</span><span[·...·truncated·by·diffoscope;·len:·887,·SHA:·161786ee85aafa0885116f428e8e4a1508247404a41d3c6b32b81c3e3f804cb2·...·]4-14">{</span><span·class="n">Acc</span><span·class="p">,</span><span·class="w">·</span><span·class="n">P</span><span·class="p">,</span><span·class="w"> |
| 229 | </span><span·class="n">S</span><span·class="p"·data-group-id=" | 229 | </span><span·class="n">S</span><span·class="p"·data-group-id="5042960484-14">}</span><span·class="p">;</span><span·class="w">·</span><span·class="c1">%·new·return·format·(X,·Acc,·S)·->·{[X|Acc],·S}·end,·xmerl_scan:file(F,</span><span·class="w"> |
| 230 | </span><span·class="p"·data-group-id=" | 230 | </span><span·class="p"·data-group-id="5042960484-15">[</span><span·class="p"·data-group-id="5042960484-16">{</span><span·class="ss">space</span><span·class="p">,</span><span·class="ss">normalize</span><span·class="p"·data-group-id="5042960484-16">}</span><span·class="p">,</span><span·class="w"[·...·truncated·by·diffoscope;·len:·262,·SHA:·ea59fa0ae99657f5772ca0d8b2725c17ffb2bae7c6670550146db3b1c1acc506·...·]4-15">]</span><span·class="p">)</span><span·class="p">.</span></code></pre> |
| 231 | </div> | 231 | </div> |
| 232 | <div·class="bottom-actions"·id="bottom-actions"> | 232 | <div·class="bottom-actions"·id="bottom-actions"> |
| 233 | ··<div·class="bottom-actions-item"> | 233 | ··<div·class="bottom-actions-item"> |
| 234 | ······<a·href="xmerl_ug.html"·class="bottom-actions-button"·rel="prev"> | 234 | ······<a·href="xmerl_ug.html"·class="bottom-actions-button"·rel="prev"> |
| 235 | ········<span·class="subheader"> | 235 | ········<span·class="subheader"> |
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| 274 | ······<p·class="built-using"> | 274 | ······<p·class="built-using"> |
| 275 | ········Built·using | 275 | ········Built·using |
| 276 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 276 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 277 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 277 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 278 | ······</p> | 278 | ······</p> |
| 279 | <p>Copyright·©·1996-202 | 279 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 280 | ····</footer> | 280 | ····</footer> |
| 281 | ··</div> | 281 | ··</div> |
| 282 | </main> | 282 | </main> |
| 283 | </div> | 283 | </div> |
| 284 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 284 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 285 | ··<script> | 285 | ··<script> |
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| 775 | ······</p> | 775 | ······</p> |
| 776 | <p>Copyright·©·1996-202 | 776 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 777 | ····</footer> | 777 | ····</footer> |
| 778 | ··</div> | 778 | ··</div> |
| 779 | </main> | 779 | </main> |
| 780 | </div> | 780 | </div> |
| 781 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 781 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 1103 | ······</p> | 1103 | ······</p> |
| 1104 | <p>Copyright·©·1996-202 | 1104 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 1105 | ····</footer> | 1105 | ····</footer> |
| 1106 | ··</div> | 1106 | ··</div> |
| 1107 | </main> | 1107 | </main> |
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| 1109 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 1109 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 494 | ······</p> | 494 | ······</p> |
| 495 | <p>Copyright·©·1996-202 | 495 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 496 | ····</footer> | 496 | ····</footer> |
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| 500 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 500 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 371 | ······</p> | 371 | ······</p> |
| 372 | <p>Copyright·©·1996-202 | 372 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 373 | ····</footer> | 373 | ····</footer> |
| 374 | ··</div> | 374 | ··</div> |
| 375 | </main> | 375 | </main> |
| 376 | </div> | 376 | </div> |
| 377 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 377 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
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| 131 | ··</a> | 131 | ··</a> |
| 132 | ··<span·class="text">Examples</span> | 132 | ··<span·class="text">Examples</span> |
| 133 | </h3> | 133 | </h3> |
| 134 | <hr·class="thin"/><h4>Example·1·Using·xslapply</h4><p>original·XSLT:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="o"><</span><span·class="nc">xsl</span><span·class="p">:</span><span·class="ss">template</span><span·class="w">·</span><span·class="ss">match</span><span·class="o">=</span><span·class="s">"doc/title"</span><span·class="o">></span><span·class="w"> | 134 | <hr·class="thin"/><h4>Example·1·Using·xslapply</h4><p>original·XSLT:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="o"><</span><span·class="nc">xsl</span><span·class="p">:</span><span·class="ss">template</span><span·class="w">·</span><span·class="ss">match</span><span·class="o">=</span><span·class="s">"doc/title"</span><span·class="o">></span><span·class="w"> |
| 135 | ····</span><span·class="o"><</span><span·class="ss">h1</span><span·class="o">></span><span·class="w"> | 135 | ····</span><span·class="o"><</span><span·class="ss">h1</span><span·class="o">></span><span·class="w"> |
| 136 | ······</span><span·class="o"><</span><span·class="nc">xsl</span><span·class="p">:</span><span·class="nb">apply</span><span·class="o">-</span><span·class="ss">templates</span><span·class="o">/</span><span·class="o">></span><span·class="w"> | 136 | ······</span><span·class="o"><</span><span·class="nc">xsl</span><span·class="p">:</span><span·class="nb">apply</span><span·class="o">-</span><span·class="ss">templates</span><span·class="o">/</span><span·class="o">></span><span·class="w"> |
| 137 | ····</span><span·class="o"><</span><span·class="o">/</span><span·class="ss">h1</span><span·class="o">></span><span·class="w"> | 137 | ····</span><span·class="o"><</span><span·class="o">/</span><span·class="ss">h1</span><span·class="o">></span><span·class="w"> |
| 138 | </span><span·class="o"><</span><span·class="o">/</span><span·class="nc">xsl</span><span·class="p">:</span><span·class="ss">template</span><span·class="o">></span></code></pre><p>becomes·in·Erlang:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">template</span><span·class="p"·data-group-id="1 | 138 | </span><span·class="o"><</span><span·class="o">/</span><span·class="nc">xsl</span><span·class="p">:</span><span·class="ss">template</span><span·class="o">></span></code></pre><p>becomes·in·Erlang:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">template</span><span·class="p"·data-group-id="1651170086-1">(</span><span·class="n">E</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">xmlElement</span><span·class="p"·data-group-id="1651170086-2">{</span><span·class="w">·</span><spa[·...·truncated·by·diffoscope;·len:·628,·SHA:·0eb304f46e6d7b836602e0983463ee0744f71e2866d35f0e68fdf42cbc51d845·...·]6-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 139 | ····</span><span·class="p"·data-group-id="1 | 139 | ····</span><span·class="p"·data-group-id="1651170086-5">[</span><span·class="s">"<h1>"</span><span·class="p">,</span><span·class="w"> |
| 140 | ·········</span><span·class="nf">xslapply</span><span·class="p"·data-group-id="1 | 140 | ·········</span><span·class="nf">xslapply</span><span·class="p"·data-group-id="1651170086-6">(</span><span·class="k">fun</span><span·class="w">·</span><span·class="ss">template</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="n">E</span><span·class="p"·data-group-id="1[·...·truncated·by·diffoscope;·len:·8,·SHA:·8f715c6def9be29ac534fcd0e1eb57f25964781fe0951a633261a9d95b3a0599·...·]6-6">)</span><span·class="p">,</span><span·class="w"> |
| 141 | ·····</span><span·class="s">"</h1>"</span><span·class="p"·data-group-id="1 | 141 | ·····</span><span·class="s">"</h1>"</span><span·class="p"·data-group-id="1651170086-5">]</span><span·class="p">;</span></code></pre><hr·class="thin"/><hr·class="thin"/><h4>Example·2·Using·value_of·and·select</h4><pre><code·class="makeup·erlang"·translate="no"><span·class="o"><</span><span·class="nc">xsl</span><span·class="p">:</span><span·class="ss">template</span><span·class="w">·</span><span·class="ss">match</span><span·class="o">=</span><span·class="s">"title"</span><span·class="o">></span><span·class="w"> |
| 142 | ··</span><span·class="o"><</span><span·class="ow">div</span><span·class="w">·</span><span·class="ss">align</span><span·class="o">=</span><span·class="s">"center"</span><span·class="o">></span><span·class="o"><</span><span·class="ss">h1</span><span·class="o">></span><span·class="o"><</span><span·class="nc">xsl</span><span·class="p">:</span><span·class="ss">value</span><span·class="o">-</span><span·class="k">of</span><span·class="w">·</span><span·class="ss">select</span><span·class="o">=</span><span·class="s">"."</span><span·class="w">·</span><span·class="o">/</span><span·class="o">></span><span·class="o"><</span><span·class="o">/</span><span·class="ss">h1</span><span·class="o">></span><span·class="o"><</span><span·class="o">/</span><span·class="ow">div</span><span·class="o">></span><span·class="w"> | 142 | ··</span><span·class="o"><</span><span·class="ow">div</span><span·class="w">·</span><span·class="ss">align</span><span·class="o">=</span><span·class="s">"center"</span><span·class="o">></span><span·class="o"><</span><span·class="ss">h1</span><span·class="o">></span><span·class="o"><</span><span·class="nc">xsl</span><span·class="p">:</span><span·class="ss">value</span><span·class="o">-</span><span·class="k">of</span><span·class="w">·</span><span·class="ss">select</span><span·class="o">=</span><span·class="s">"."</span><span·class="w">·</span><span·class="o">/</span><span·class="o">></span><span·class="o"><</span><span·class="o">/</span><span·class="ss">h1</span><span·class="o">></span><span·class="o"><</span><span·class="o">/</span><span·class="ow">div</span><span·class="o">></span><span·class="w"> |
| 143 | </span><span·class="o"><</span><span·class="o">/</span><span·class="nc">xsl</span><span·class="p">:</span><span·class="ss">template</span><span·class="o">></span></code></pre><p>becomes:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">template</span><span·class="p"·data-group-id="135 | 143 | </span><span·class="o"><</span><span·class="o">/</span><span·class="nc">xsl</span><span·class="p">:</span><span·class="ss">template</span><span·class="o">></span></code></pre><p>becomes:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">template</span><span·class="p"·data-group-id="3135065294-1">(</span><span·class="n">E</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">xmlElement</span><span·class="p"·data-group-id="3135065294-2">{</span><span·class="ss">name</span[·...·truncated·by·diffoscope;·len:·158,·SHA:·f10895b7d4415d02d3820e5e4714b232fa6d623b85b0fb224acc3dc4d37505a2·...·]-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 144 | ····</span><span·class="p"·data-group-id="135 | 144 | ····</span><span·class="p"·data-group-id="3135065294-3">[</span><span·class="s">"<div·align=\"center\"><h1>"</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">value_of</span><span·class="p"·data-group-id="3135065294-4">(</span><span·class="nf">s[·...·truncated·by·diffoscope;·len:·426,·SHA:·6d381a768de50f86068303a8301a56022b8b548791917a2b45580c68ec7a35ad·...·]-3">]</span><span·class="p">;</span></code></pre><hr·class="thin"/><hr·class="thin"/><h4>Example·3·Simple·xsl·stylesheet</h4><p>A·complete·example·with·the·XSLT·sheet·in·the·xmerl·distribution.</p><pre><code·class="makeup·erlang"·translate="no"><span·class="o"><</span><span·class="nc">xsl</span><span·class="p">:</span><span·class="ss">stylesheet</span><span·class="w">·</span><span·class="ss">version</span><span·class="o">=</span><span·class="s">"1.0"</span><span·class="w"> |
| 145 | ········</span><span·class="nc">xmlns</span><span·class="p">:</span><span·class="ss">xsl</span><span·class="o">=</span><span·class="s">"http://www.w3.org/1999/XSL/Transform"</span><span·class="w"> | 145 | ········</span><span·class="nc">xmlns</span><span·class="p">:</span><span·class="ss">xsl</span><span·class="o">=</span><span·class="s">"http://www.w3.org/1999/XSL/Transform"</span><span·class="w"> |
| 146 | ········</span><span·class="ss">xmlns</span><span·class="o">=</span><span·class="s">"http://www.w3.org/TR/xhtml1/strict"</span><span·class="o">></span><span·class="w"> | 146 | ········</span><span·class="ss">xmlns</span><span·class="o">=</span><span·class="s">"http://www.w3.org/TR/xhtml1/strict"</span><span·class="o">></span><span·class="w"> |
| 147 | ··</span><span·class="o"><</span><span·class="nc">xsl</span><span·class="p">:</span><span·class="ss">strip</span><span·class="o">-</span><span·class="ss">space</span><span·class="w">·</span><span·class="ss">elements</span><span·class="o">=</span><span·class="s">"doc·chapter·section"</span><span·class="o">/</span><span·class="o">></span><span·class="w"> | 147 | ··</span><span·class="o"><</span><span·class="nc">xsl</span><span·class="p">:</span><span·class="ss">strip</span><span·class="o">-</span><span·class="ss">space</span><span·class="w">·</span><span·class="ss">elements</span><span·class="o">=</span><span·class="s">"doc·chapter·section"</span><span·class="o">/</span><span·class="o">></span><span·class="w"> |
| 148 | ··</span><span·class="o"><</span><span·class="nc">xsl</span><span·class="p">:</span><span·class="ss">output</span><span·class="w"> | 148 | ··</span><span·class="o"><</span><span·class="nc">xsl</span><span·class="p">:</span><span·class="ss">output</span><span·class="w"> |
| 149 | ····</span><span·class="ss">method</span><span·class="o">=</span><span·class="s">"xml"</span><span·class="w"> | 149 | ····</span><span·class="ss">method</span><span·class="o">=</span><span·class="s">"xml"</span><span·class="w"> |
| 150 | ····</span><span·class="ss">indent</span><span·class="o">=</span><span·class="s">"yes"</span><span·class="w"> | 150 | ····</span><span·class="ss">indent</span><span·class="o">=</span><span·class="s">"yes"</span><span·class="w"> |
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| 198 | ··</span><span·class="o"><</span><span·class="nc">xsl</span><span·class="p">:</span><span·class="ss">template</span><span·class="w">·</span><span·class="ss">match</span><span·class="o">=</span><span·class="s">"emph"</span><span·class="o">></span><span·class="w"> | 198 | ··</span><span·class="o"><</span><span·class="nc">xsl</span><span·class="p">:</span><span·class="ss">template</span><span·class="w">·</span><span·class="ss">match</span><span·class="o">=</span><span·class="s">"emph"</span><span·class="o">></span><span·class="w"> |
| 199 | ····</span><span·class="o"><</span><span·class="ss">em</span><span·class="o">></span><span·class="w"> | 199 | ····</span><span·class="o"><</span><span·class="ss">em</span><span·class="o">></span><span·class="w"> |
| 200 | ······</span><span·class="o"><</span><span·class="nc">xsl</span><span·class="p">:</span><span·class="nb">apply</span><span·class="o">-</span><span·class="ss">templates</span><span·class="o">/</span><span·class="o">></span><span·class="w"> | 200 | ······</span><span·class="o"><</span><span·class="nc">xsl</span><span·class="p">:</span><span·class="nb">apply</span><span·class="o">-</span><span·class="ss">templates</span><span·class="o">/</span><span·class="o">></span><span·class="w"> |
| 201 | ····</span><span·class="o"><</span><span·class="o">/</span><span·class="ss">em</span><span·class="o">></span><span·class="w"> | 201 | ····</span><span·class="o"><</span><span·class="o">/</span><span·class="ss">em</span><span·class="o">></span><span·class="w"> |
| 202 | ··</span><span·class="o"><</span><span·class="o">/</span><span·class="nc">xsl</span><span·class="p">:</span><span·class="ss">template</span><span·class="o">></span><span·class="w"> | 202 | ··</span><span·class="o"><</span><span·class="o">/</span><span·class="nc">xsl</span><span·class="p">:</span><span·class="ss">template</span><span·class="o">></span><span·class="w"> |
| 203 | </span><span·class="o"><</span><span·class="o">/</span><span·class="nc">xsl</span><span·class="p">:</span><span·class="ss">stylesheet</span><span·class="o">></span></code></pre><hr·class="thin"/><hr·class="thin"/><h4>Example·4·Erlang·version</h4><p>Erlang·transformation·of·previous·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">include</span><span·class="p"·data-group-id=" | 203 | </span><span·class="o"><</span><span·class="o">/</span><span·class="nc">xsl</span><span·class="p">:</span><span·class="ss">stylesheet</span><span·class="o">></span></code></pre><hr·class="thin"/><hr·class="thin"/><h4>Example·4·Erlang·version</h4><p>Erlang·transformation·of·previous·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="p">-</span><span·class="na">include</span><span·class="p"·data-group-id="9344363555-1">(</span><span·class="s">"xmerl.hrl"</span><span·class="p"·data-group-id="9344363555-1">)</span><span·class="p">.</span><span·class="w"> |
| 204 | </span><span·class="w"> | 204 | </span><span·class="w"> |
| 205 | </span><span·class="p">-</span><span·class="na">import</span><span·class="p"·data-group-id=" | 205 | </span><span·class="p">-</span><span·class="na">import</span><span·class="p"·data-group-id="9344363555-2">(</span><span·class="ss">xmerl_xs</span><span·class="p">,</span><span·class="w"> |
| 206 | ····</span><span·class="p"·data-group-id=" | 206 | ····</span><span·class="p"·data-group-id="9344363555-3">[</span><span·class="w">·</span><span·class="ss">xslapply</span><span·class="p">/</span><span·class="mi">2</span><span·class="p">,</span><span·class="w">·</span><span·class="ss">value_of</span><span·class="p">/</span><span·class="mi">1</span>[·...·truncated·by·diffoscope;·len:·380,·SHA:·3c113f4a20926a7c52f31cbb8ca0cf74a5056475f5704928d8a0bfb2c8837398·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 207 | </span><span·class="nf">doctype</span><span·class="p"·data-group-id=" | 207 | </span><span·class="nf">doctype</span><span·class="p"·data-group-id="9344363555-4">(</span><span·class="p"·data-group-id="9344363555-4">)</span><span·class="p">-></span><span·class="w"> |
| 208 | ····</span><span·class="s">"<!DOCTYPE·html·PUBLIC·\"-//W3C//DTD·XHTML·1.0·Transitional//EN\"\ | 208 | ····</span><span·class="s">"<!DOCTYPE·html·PUBLIC·\"-//W3C//DTD·XHTML·1.0·Transitional//EN\"\ |
| 209 | ·\"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd·\">"</span><span·class="p">.</span><span·class="w"> | 209 | ·\"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd·\">"</span><span·class="p">.</span><span·class="w"> |
| 210 | </span><span·class="nf">process_xml</span><span·class="p"·data-group-id=" | 210 | </span><span·class="nf">process_xml</span><span·class="p"·data-group-id="9344363555-5">(</span><span·class="n">Doc</span><span·class="p"·data-group-id="9344363555-5">)</span><span·class="p">-></span><span·class="w"> |
| 211 | ····</span><span·class="nf">template</span><span·class="p"·data-group-id=" | 211 | ····</span><span·class="nf">template</span><span·class="p"·data-group-id="9344363555-6">(</span><span·class="n">Doc</span><span·class="p"·data-group-id="9344363555-6">)</span><span·class="p">.</span><span·class="w"> |
| 212 | </span><span·class="nf">template</span><span·class="p"·data-group-id=" | 212 | </span><span·class="nf">template</span><span·class="p"·data-group-id="9344363555-7">(</span><span·class="n">E</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">xmlElement</span><span·class="p"·data-group-id="9344363555-8">{</span><span·class="ss">name</span[·...·truncated·by·diffoscope;·len:·156,·SHA:·fbf324ee44191c7be9169f4657433851bd711a93635e334d84169e8130140548·...·]-7">)</span><span·class="p">-></span><span·class="w"> |
| 213 | ····</span><span·class="p"·data-group-id=" | 213 | ····</span><span·class="p"·data-group-id="9344363555-9">[</span><span·class="w">·</span><span·class="s">"<\?xml·version=\"1.0\"·encoding=\"iso-8859-1\"\?>"</span><span·class="p">,</span><span·class="w"> |
| 214 | ······</span><span·class="nf">doctype</span><span·class="p"·data-group-id=" | 214 | ······</span><span·class="nf">doctype</span><span·class="p"·data-group-id="9344363555-10">(</span><span·class="p"·data-group-id="9344363555-10">)</span><span·class="p">,</span><span·class="w"> |
| 215 | ······</span><span·class="s">"<html·xmlns=\"http://www.w3.org/1999/xhtml\"·>"</span><span·class="w"> | 215 | ······</span><span·class="s">"<html·xmlns=\"http://www.w3.org/1999/xhtml\"·>"</span><span·class="w"> |
| 216 | ······</span><span·class="s">"<head>"</span><span·class="w"> | 216 | ······</span><span·class="s">"<head>"</span><span·class="w"> |
| 217 | ······</span><span·class="s">"<title>"</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">value_of</span><span·class="p"·data-group-id=" | 217 | ······</span><span·class="s">"<title>"</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">value_of</span><span·class="p"·data-group-id="9344363555-11">(</span><span·class="nf">select</span><span·class="p"·data-group-id="9344363555-12">(</span><span·class="s">"title"</span><span·class="p">,</span><span·class="n">E</span><span·class="p"·data-group-id="9344363555-12">)</span><span·c[·...·truncated·by·diffoscope;·len:·34,·SHA:·653c5ffac003d77ec3ea5f13b6f41effadaa3ff43b85d43c00ee7c36c2ae4821·...·]-11">)</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"</title>"</span><span·class="w"> |
| 218 | ······</span><span·class="s">"</head>"</span><span·class="w"> | 218 | ······</span><span·class="s">"</head>"</span><span·class="w"> |
| 219 | ······</span><span·class="s">"<body>"</span><span·class="p">,</span><span·class="w"> | 219 | ······</span><span·class="s">"<body>"</span><span·class="p">,</span><span·class="w"> |
| 220 | ······</span><span·class="nf">xslapply</span><span·class="p"·data-group-id=" | 220 | ······</span><span·class="nf">xslapply</span><span·class="p"·data-group-id="9344363555-13">(</span><span·class="w">·</span><span·class="k">fun</span><span·class="w">·</span><span·class="ss">template</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="n">E</span><span·[·...·truncated·by·diffoscope;·len:·35,·SHA:·b1d5050756192aea84f6e968548c8adeb00615e152a00adb523aa740d89ffc86·...·]-13">)</span><span·class="p">,</span><span·class="w"> |
| 221 | ······</span><span·class="s">"</body>"</span><span·class="w"> | 221 | ······</span><span·class="s">"</body>"</span><span·class="w"> |
| 222 | ······</span><span·class="s">"</html>"</span><span·class="w">·</span><span·class="p"·data-group-id=" | 222 | ······</span><span·class="s">"</html>"</span><span·class="w">·</span><span·class="p"·data-group-id="9344363555-9">]</span><span·class="p">;</span><span·class="w"> |
| 223 | </span><span·class="nf">template</span><span·class="p"·data-group-id=" | 223 | </span><span·class="nf">template</span><span·class="p"·data-group-id="9344363555-14">(</span><span·class="n">E</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">xmlElement</span><span·class="p"·data-group-id="9344363555-15">{</span><span·class="w">·</span><[·...·truncated·by·diffoscope;·len:·637,·SHA:·c7d28fe8c6265fd7200f57091e9fa38b8a1972833af7c1fba5727b1f04ddd1c1·...·]-14">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 224 | ····</span><span·class="p"·data-group-id=" | 224 | ····</span><span·class="p"·data-group-id="9344363555-18">[</span><span·class="s">"<h1>"</span><span·class="p">,</span><span·class="w"> |
| 225 | ·····</span><span·class="nf">xslapply</span><span·class="p"·data-group-id=" | 225 | ·····</span><span·class="nf">xslapply</span><span·class="p"·data-group-id="9344363555-19">(</span><span·class="w">·</span><span·class="k">fun</span><span·class="w">·</span><span·class="ss">template</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="n">E</span><span·[·...·truncated·by·diffoscope;·len:·35,·SHA:·b1d5050756192aea84f6e968548c8adeb00615e152a00adb523aa740d89ffc86·...·]-19">)</span><span·class="p">,</span><span·class="w"> |
| 226 | ·····</span><span·class="s">"</h1>"</span><span·class="p"·data-group-id=" | 226 | ·····</span><span·class="s">"</h1>"</span><span·class="p"·data-group-id="9344363555-18">]</span><span·class="p">;</span><span·class="w"> |
| 227 | </span><span·class="nf">template</span><span·class="p"·data-group-id=" | 227 | </span><span·class="nf">template</span><span·class="p"·data-group-id="9344363555-20">(</span><span·class="n">E</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">xmlElement</span><span·class="p"·data-group-id="9344363555-21">{</span><span·class="w">·</span><[·...·truncated·by·diffoscope;·len:·641,·SHA:·f3ba54a59afb6fab616c44bc4fcf2ccf59a8566481d59930ba8d2b7989711b44·...·]-20">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 228 | ····</span><span·class="p"·data-group-id=" | 228 | ····</span><span·class="p"·data-group-id="9344363555-24">[</span><span·class="s">"<h2>"</span><span·class="p">,</span><span·class="w"> |
| 229 | ·····</span><span·class="nf">xslapply</span><span·class="p"·data-group-id=" | 229 | ·····</span><span·class="nf">xslapply</span><span·class="p"·data-group-id="9344363555-25">(</span><span·class="w">·</span><span·class="k">fun</span><span·class="w">·</span><span·class="ss">template</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="n">E</span><span·[·...·truncated·by·diffoscope;·len:·35,·SHA:·b1d5050756192aea84f6e968548c8adeb00615e152a00adb523aa740d89ffc86·...·]-25">)</span><span·class="p">,</span><span·class="w"> |
| 230 | ·····</span><span·class="s">"</h2>"</span><span·class="p"·data-group-id=" | 230 | ·····</span><span·class="s">"</h2>"</span><span·class="p"·data-group-id="9344363555-24">]</span><span·class="p">;</span><span·class="w"> |
| 231 | </span><span·class="nf">template</span><span·class="p"·data-group-id=" | 231 | </span><span·class="nf">template</span><span·class="p"·data-group-id="9344363555-26">(</span><span·class="n">E</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">xmlElement</span><span·class="p"·data-group-id="9344363555-27">{</span><span·class="w">·</span><[·...·truncated·by·diffoscope;·len:·641,·SHA:·9411115ea8585d24c161db4f885714af9a19922c7290c4b41a5f69a3705fd00d·...·]-26">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 232 | ····</span><span·class="p"·data-group-id=" | 232 | ····</span><span·class="p"·data-group-id="9344363555-30">[</span><span·class="s">"<h3>"</span><span·class="p">,</span><span·class="w"> |
| 233 | ·····</span><span·class="nf">xslapply</span><span·class="p"·data-group-id=" | 233 | ·····</span><span·class="nf">xslapply</span><span·class="p"·data-group-id="9344363555-31">(</span><span·class="w">·</span><span·class="k">fun</span><span·class="w">·</span><span·class="ss">template</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="n">E</span><span·[·...·truncated·by·diffoscope;·len:·35,·SHA:·b1d5050756192aea84f6e968548c8adeb00615e152a00adb523aa740d89ffc86·...·]-31">)</span><span·class="p">,</span><span·class="w"> |
| 234 | ·····</span><span·class="s">"</h3>"</span><span·class="p"·data-group-id=" | 234 | ·····</span><span·class="s">"</h3>"</span><span·class="p"·data-group-id="9344363555-30">]</span><span·class="p">;</span><span·class="w"> |
| 235 | </span><span·class="nf">template</span><span·class="p"·data-group-id=" | 235 | </span><span·class="nf">template</span><span·class="p"·data-group-id="9344363555-32">(</span><span·class="n">E</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">xmlElement</span><span·class="p"·data-group-id="9344363555-33">{</span><span·class="w">·</span><[·...·truncated·by·diffoscope;·len:·184,·SHA:·027733dbd1271b0b0d6049c28db0144598f8813c257c9ee226480bac1af86d16·...·]-32">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 236 | ····</span><span·class="p"·data-group-id=" | 236 | ····</span><span·class="p"·data-group-id="9344363555-34">[</span><span·class="s">"<p>"</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">xslapply</span><span·class="p"·data-group-id="9344363555-35">(</span><span·class="w">·</span><span·class="k">fun</span><span[·...·truncated·by·diffoscope;·len:·360,·SHA:·6ad5f732a732084d6eef7ee42594a12f3dfeaddac7d1de4002c21c564e60eb0e·...·]-34">]</span><span·class="p">;</span><span·class="w"> |
| 237 | </span><span·class="nf">template</span><span·class="p"·data-group-id=" | 237 | </span><span·class="nf">template</span><span·class="p"·data-group-id="9344363555-36">(</span><span·class="n">E</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">xmlElement</span><span·class="p"·data-group-id="9344363555-37">{</span><span·class="w">·</span><[·...·truncated·by·diffoscope;·len:·184,·SHA:·14b4d0704d761d9a55137553e9dd5f7b0dcbf3d27640591cf5ab23f613133693·...·]-36">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 238 | ····</span><span·class="p"·data-group-id=" | 238 | ····</span><span·class="p"·data-group-id="9344363555-38">[</span><span·class="s">"<p·class=\"note\">"</span><span·class="w"> |
| 239 | ·····</span><span·class="s">"<b>NOTE:·</b>"</span><span·class="p">,</span><span·class="w"> | 239 | ·····</span><span·class="s">"<b>NOTE:·</b>"</span><span·class="p">,</span><span·class="w"> |
| 240 | ·····</span><span·class="nf">xslapply</span><span·class="p"·data-group-id=" | 240 | ·····</span><span·class="nf">xslapply</span><span·class="p"·data-group-id="9344363555-39">(</span><span·class="w">·</span><span·class="k">fun</span><span·class="w">·</span><span·class="ss">template</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="n">E</span><span·[·...·truncated·by·diffoscope;·len:·35,·SHA:·b1d5050756192aea84f6e968548c8adeb00615e152a00adb523aa740d89ffc86·...·]-39">)</span><span·class="p">,</span><span·class="w"> |
| 241 | ·····</span><span·class="s">"</p>"</span><span·class="p"·data-group-id=" | 241 | ·····</span><span·class="s">"</p>"</span><span·class="p"·data-group-id="9344363555-38">]</span><span·class="p">;</span><span·class="w"> |
| 242 | </span><span·class="nf">template</span><span·class="p"·data-group-id=" | 242 | </span><span·class="nf">template</span><span·class="p"·data-group-id="9344363555-40">(</span><span·class="n">E</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">xmlElement</span><span·class="p"·data-group-id="9344363555-41">{</span><span·class="w">·</span><[·...·truncated·by·diffoscope;·len:·184,·SHA:·dda546b2b7f7d16bba4238bd169e8f4ae0c5573fc9d0c173d1426145a6e906e0·...·]-40">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 243 | ····</span><span·class="p"·data-group-id=" | 243 | ····</span><span·class="p"·data-group-id="9344363555-42">[</span><span·class="s">"<em>"</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">xslapply</span><span·class="p"·data-group-id="9344363555-43">(</span><span·class="w">·</span><span·class="k">fun</span><spa[·...·truncated·by·diffoscope;·len:·362,·SHA:·63f15c873d3bd020445e8f112ba504c71d45dc66848c4ddd3fef488635d7aa39·...·]-42">]</span><span·class="p">;</span><span·class="w"> |
| 244 | </span><span·class="nf">template</span><span·class="p"·data-group-id=" | 244 | </span><span·class="nf">template</span><span·class="p"·data-group-id="9344363555-44">(</span><span·class="n">E</span><span·class="p"·data-group-id="9344363555-44">)</span><span·class="p">-></span><span·class="w"> |
| 245 | ····</span><span·class="nf">built_in_rules</span><span·class="p"·data-group-id=" | 245 | ····</span><span·class="nf">built_in_rules</span><span·class="p"·data-group-id="9344363555-45">(</span><span·class="w">·</span><span·class="k">fun</span><span·class="w">·</span><span·class="ss">template</span><span·class="p">/</span><span·class="mi">1</span><span·class="p">,</span><span·class="w">·</span><span·class="n">E</span><span·[·...·truncated·by·diffoscope;·len:·35,·SHA:·b1d5050756192aea84f6e968548c8adeb00615e152a00adb523aa740d89ffc86·...·]-45">)</span><span·class="p">.</span></code></pre><p>It·is·important·to·end·with·a·call·to·<a·href="xmerl_xs.html#built_in_rules/2"><code·class="inline">xmerl_xs:built_in_rules/2</code></a>·if·you·want·any |
| 246 | text·to·be·written·in·"push"·transforms.·That·are·the·ones·using·a·lot·<code·class="inline">xslapply(·fun·template/1,·E·)</code>·instead·of·<code·class="inline">value_of(select("xpath",E))</code>,·which·is·pull...</p><hr·class="thin"/><p>The·largest·example·is·the·stylesheet·to·transform·this·document·from·the | 246 | text·to·be·written·in·"push"·transforms.·That·are·the·ones·using·a·lot·<code·class="inline">xslapply(·fun·template/1,·E·)</code>·instead·of·<code·class="inline">value_of(select("xpath",E))</code>,·which·is·pull...</p><hr·class="thin"/><p>The·largest·example·is·the·stylesheet·to·transform·this·document·from·the |
| 247 | Simplified·Docbook·XML·format·to·xhtml.·The·source·file·is·sdocbook2xhtml.erl.</p><h3·id="tips-and-tricks"·class="section-heading"> | 247 | Simplified·Docbook·XML·format·to·xhtml.·The·source·file·is·sdocbook2xhtml.erl.</p><h3·id="tips-and-tricks"·class="section-heading"> |
| 248 | ··<a·href="#tips-and-tricks"·class="hover-link"> | 248 | ··<a·href="#tips-and-tricks"·class="hover-link"> |
| 249 | ····<i·class="ri-link-m"·aria-hidden="true"></i> | 249 | ····<i·class="ri-link-m"·aria-hidden="true"></i> |
| 250 | ··</a> | 250 | ··</a> |
| 251 | ··<span·class="text">Tips·and·tricks</span> | 251 | ··<span·class="text">Tips·and·tricks</span> |
| 252 | </h3> | 252 | </h3> |
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| 270 | position·in·Erlang.</p><hr·class="thin"/><h4>Example·5·Counting·positions</h4><pre><code·class="makeup·erlang"·translate="no"><span·class="o"><</span><span·class="nc">xsl</span><span·class="p">:</span><span·class="ss">template</span><span·class="w">·</span><span·class="ss">match</span><span·class="o">=</span><span·class="s">"stanza"</span><span·class="o">></span><span·class="w"> | 270 | position·in·Erlang.</p><hr·class="thin"/><h4>Example·5·Counting·positions</h4><pre><code·class="makeup·erlang"·translate="no"><span·class="o"><</span><span·class="nc">xsl</span><span·class="p">:</span><span·class="ss">template</span><span·class="w">·</span><span·class="ss">match</span><span·class="o">=</span><span·class="s">"stanza"</span><span·class="o">></span><span·class="w"> |
| 271 | ··</span><span·class="o"><</span><span·class="ss">p</span><span·class="o">></span><span·class="o"><</span><span·class="nc">xsl</span><span·class="p">:</span><span·class="nb">apply</span><span·class="o">-</span><span·class="ss">templates</span><span·class="w">·</span><span·class="ss">select</span><span·class="o">=</span><span·class="s">"line"</span><span·class="w">·</span><span·class="o">/</span><span·class="o">></span><span·class="o"><</span><span·class="o">/</span><span·class="ss">p</span><span·class="o">></span><span·class="w"> | 271 | ··</span><span·class="o"><</span><span·class="ss">p</span><span·class="o">></span><span·class="o"><</span><span·class="nc">xsl</span><span·class="p">:</span><span·class="nb">apply</span><span·class="o">-</span><span·class="ss">templates</span><span·class="w">·</span><span·class="ss">select</span><span·class="o">=</span><span·class="s">"line"</span><span·class="w">·</span><span·class="o">/</span><span·class="o">></span><span·class="o"><</span><span·class="o">/</span><span·class="ss">p</span><span·class="o">></span><span·class="w"> |
| 272 | </span><span·class="o"><</span><span·class="o">/</span><span·class="nc">xsl</span><span·class="p">:</span><span·class="ss">template</span><span·class="o">></span><span·class="w"> | 272 | </span><span·class="o"><</span><span·class="o">/</span><span·class="nc">xsl</span><span·class="p">:</span><span·class="ss">template</span><span·class="o">></span><span·class="w"> |
| 273 | </span><span·class="o"><</span><span·class="nc">xsl</span><span·class="p">:</span><span·class="ss">template</span><span·class="w">·</span><span·class="ss">match</span><span·class="o">=</span><span·class="s">"line"</span><span·class="o">></span><span·class="w"> | 273 | </span><span·class="o"><</span><span·class="nc">xsl</span><span·class="p">:</span><span·class="ss">template</span><span·class="w">·</span><span·class="ss">match</span><span·class="o">=</span><span·class="s">"line"</span><span·class="o">></span><span·class="w"> |
| 274 | ··</span><span·class="o"><</span><span·class="nc">xsl</span><span·class="p">:</span><span·class="k">if</span><span·class="w">·</span><span·class="ss">test</span><span·class="o">=</span><span·class="s">"position()·mod·2·=·0"</span><span·class="o">></span><span·class="err">&</span><span·class="p">#</span><span·class="mi">160</span><span·class="p">;</span><span·class="err">&</span><span·class="p">#</span><span·class="mi">160</span><span·class="p">;</span><span·class="o"><</span><span·class="o">/</span><span·class="nc">xsl</span><span·class="p">:</span><span·class="k">if</span><span·class="o">></span><span·class="w"> | 274 | ··</span><span·class="o"><</span><span·class="nc">xsl</span><span·class="p">:</span><span·class="k">if</span><span·class="w">·</span><span·class="ss">test</span><span·class="o">=</span><span·class="s">"position()·mod·2·=·0"</span><span·class="o">></span><span·class="err">&</span><span·class="p">#</span><span·class="mi">160</span><span·class="p">;</span><span·class="err">&</span><span·class="p">#</span><span·class="mi">160</span><span·class="p">;</span><span·class="o"><</span><span·class="o">/</span><span·class="nc">xsl</span><span·class="p">:</span><span·class="k">if</span><span·class="o">></span><span·class="w"> |
| 275 | ··</span><span·class="o"><</span><span·class="nc">xsl</span><span·class="p">:</span><span·class="ss">value</span><span·class="o">-</span><span·class="k">of</span><span·class="w">·</span><span·class="ss">select</span><span·class="o">=</span><span·class="s">"."</span><span·class="w">·</span><span·class="o">/</span><span·class="o">></span><span·class="o"><</span><span·class="ss">br</span><span·class="w">·</span><span·class="o">/</span><span·class="o">></span><span·class="w"> | 275 | ··</span><span·class="o"><</span><span·class="nc">xsl</span><span·class="p">:</span><span·class="ss">value</span><span·class="o">-</span><span·class="k">of</span><span·class="w">·</span><span·class="ss">select</span><span·class="o">=</span><span·class="s">"."</span><span·class="w">·</span><span·class="o">/</span><span·class="o">></span><span·class="o"><</span><span·class="ss">br</span><span·class="w">·</span><span·class="o">/</span><span·class="o">></span><span·class="w"> |
| 276 | </span><span·class="o"><</span><span·class="o">/</span><span·class="nc">xsl</span><span·class="p">:</span><span·class="ss">template</span><span·class="o">></span></code></pre><p>Can·be·written·as</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">template</span><span·class="p"·data-group-id=" | 276 | </span><span·class="o"><</span><span·class="o">/</span><span·class="nc">xsl</span><span·class="p">:</span><span·class="ss">template</span><span·class="o">></span></code></pre><p>Can·be·written·as</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">template</span><span·class="p"·data-group-id="6097708105-1">(</span><span·class="n">E</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">xmlElement</span><span·class="p"·data-group-id="6097708105-2">{</span><span·class="ss">name</span[·...·truncated·by·diffoscope;·len:·158,·SHA:·c380630770cb47c24211323cc29b62994c8209d69f94f6d14464a779222dde44·...·]5-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 277 | ····</span><span·class="p"·data-group-id=" | 277 | ····</span><span·class="p"·data-group-id="6097708105-3">{</span><span·class="n">Lines</span><span·class="p">,</span><span·class="n">LineNo</span><span·class="p"·data-group-id="6097708105-3">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">lists</span[·...·truncated·by·diffoscope;·len:·653,·SHA:·94bd3e8b453d07ded07a7becd5fac30bb6c404956528f9fc74d859463cd068e9·...·]5-4">)</span><span·class="p">,</span><span·class="w"> |
| 278 | ····</span><span·class="p"·data-group-id=" | 278 | ····</span><span·class="p"·data-group-id="6097708105-6">[</span><span·class="s">"<p>"</span><span·class="p">,</span><span·class="w">·</span><span·class="n">Lines</span><span·class="p">,</span><span·class="w">·</span><span·class="s">"</p>"</span><span·class="p"·data-[·...·truncated·by·diffoscope;·len:·19,·SHA:·86949fbf849d689878c63844a3cb94e02a05d9c2c80f98b09ddbf43aee8985c1·...·]5-6">]</span><span·class="p">.</span><span·class="w"> |
| 279 | </span><span·class="nf">template_pos</span><span·class="p"·data-group-id=" | 279 | </span><span·class="nf">template_pos</span><span·class="p"·data-group-id="6097708105-7">(</span><span·class="n">E</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">xmlElement</span><span·class="p"·data-group-id="6097708105-8">{</span><span·class="ss">name</span[·...·truncated·by·diffoscope;·len:·228,·SHA:·359a7c3ad930aa8e2cce9fcc7cf04c9047c8bb24f7a01edde69baae4c65e7450·...·]5-7">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 280 | ····</span><span·class="p"·data-group-id=" | 280 | ····</span><span·class="p"·data-group-id="6097708105-9">{</span><span·class="p"·data-group-id="6097708105-10">[</span><span·class="nf">indent_line</span><span·class="p"·data-group-id="6097708105-11">(</span><span·class="n">P</span><span·class="w">·</span><span·class="ow">rem</span><span·class="w">[·...·truncated·by·diffoscope;·len:·794,·SHA:·855a9331626bb53bce30ffa3198904a7f61a736586a7cc8e08a8de9899833fd5·...·]5-9">}</span><span·class="p">.</span><span·class="w"> |
| 281 | </span><span·class="nf">indent_line</span><span·class="p"·data-group-id=" | 281 | </span><span·class="nf">indent_line</span><span·class="p"·data-group-id="6097708105-13">(</span><span·class="mi">0</span><span·class="p"·data-group-id="6097708105-13">)</span><span·class="p">-></span><span·class="s">"&#160;&#160;"</span><span·class="p">;</span><span·class="w"> |
| 282 | </span><span·class="nf">indent_line</span><span·class="p"·data-group-id=" | 282 | </span><span·class="nf">indent_line</span><span·class="p"·data-group-id="6097708105-14">(</span><span·class="p">_</span><span·class="p"·data-group-id="6097708105-14">)</span><span·class="p">-></span><span·class="s">""</span><span·class="p">.</span></code></pre><hr·class="thin"/><h4>Global·tree·awareness</h4><p>In·XSLT·you·have·"root"·access·to·the·top·of·the·tree·with·XPath,·even·though |
| 283 | you·are·somewhere·deep·in·your·tree.</p><p>The·xslapply/2·function·only·carries·back·the·child·part·of·the·tree·to·the | 283 | you·are·somewhere·deep·in·your·tree.</p><p>The·xslapply/2·function·only·carries·back·the·child·part·of·the·tree·to·the |
| 284 | template·fun.·But·it·is·quite·easy·to·write·template·funs·that·handles·both·the | 284 | template·fun.·But·it·is·quite·easy·to·write·template·funs·that·handles·both·the |
| 285 | child·and·top·tree.</p><hr·class="thin"/><h4>Example·6·Passing·the·root·tree</h4><p>The·following·example·piece·will·prepend·the·article·title·to·any·section·title</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">template</span><span·class="p"·data-group-id=" | 285 | child·and·top·tree.</p><hr·class="thin"/><h4>Example·6·Passing·the·root·tree</h4><p>The·following·example·piece·will·prepend·the·article·title·to·any·section·title</p><pre><code·class="makeup·erlang"·translate="no"><span·class="nf">template</span><span·class="p"·data-group-id="4651860730-1">(</span><span·class="n">E</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="o">#</span><span·class="ss">xmlElement</span><span·class="p"·data-group-id="4651860730-2">{</span><span·class="ss">name</span[·...·truncated·by·diffoscope;·len:·257,·SHA:·636b8423026fa7bffac1c91e5ceb1f029e286569eaa74a058e54c23ad57c07aa·...·]-1">)</span><span·class="w">·</span><span·class="p">-></span><span·class="w"> |
| 286 | ····</span><span·class="p"·data-group-id=" | 286 | ····</span><span·class="p"·data-group-id="4651860730-3">[</span><span·class="s">"<h3>"</span><span·class="p">,</span><span·class="w">·</span><span·class="nf">value_of</span><span·class="p"·data-group-id="4651860730-4">(</span><span·class="nf">select</span><span·class="p"·data-group[·...·truncated·by·diffoscope;·len:·236,·SHA:·8de534b7869bedefe670335fc90a3563fb38a459398831c4bd18550da9dd6dde·...·]-4">)</span><span·class="p">,</span><span·class="s">"·-·"</span><span·class="p">,</span><span·class="w"> |
| 287 | ·····</span><span·class="nf">xslapply</span><span·class="p"·data-group-id=" | 287 | ·····</span><span·class="nf">xslapply</span><span·class="p"·data-group-id="4651860730-6">(</span><span·class="w">·</span><span·class="nf">fun</span><span·class="p"·data-group-id="4651860730-7">(</span><span·class="n">A</span><span·class="p"·data-group-id="4651860730-7">)</span><span·class="w">·</span><span·class="p">-></span><[·...·truncated·by·diffoscope;·len:·423,·SHA:·7560a1110e3a077517da1be682bcd79131c9f11df62c5bff9228b517fd13bb29·...·]-6">)</span><span·class="p">,</span><span·class="w"> |
| 288 | ·····</span><span·class="s">"</h3>"</span><span·class="p"·data-group-id=" | 288 | ·····</span><span·class="s">"</h3>"</span><span·class="p"·data-group-id="4651860730-3">]</span><span·class="p">;</span></code></pre><hr·class="thin"/> |
| 289 | </div> | 289 | </div> |
| 290 | <div·class="bottom-actions"·id="bottom-actions"> | 290 | <div·class="bottom-actions"·id="bottom-actions"> |
| 291 | ··<div·class="bottom-actions-item"> | 291 | ··<div·class="bottom-actions-item"> |
| 292 | ······<a·href="xmerl_examples.html"·class="bottom-actions-button"·rel="prev"> | 292 | ······<a·href="xmerl_examples.html"·class="bottom-actions-button"·rel="prev"> |
| 293 | ········<span·class="subheader"> | 293 | ········<span·class="subheader"> |
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| 322 | ······<p·class="built-using"> | 322 | ······<p·class="built-using"> |
| 323 | ········Built·using | 323 | ········Built·using |
| 324 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 324 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 325 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 325 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
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| 772 | parsed·XML·<a·href="xmerl.html#t:xmlElement/0"><code·class="inline">Element :: #xmlElement{}</code></a> | 772 | parsed·XML·<a·href="xmerl.html#t:xmlElement/0"><code·class="inline">Element :: #xmlElement{}</code></a> |
| 773 | and·a·State,·<a·href="#t:global_state/0"><code·class="inline">global_state/0</code></a>,·which·holds·necessary·information | 773 | and·a·State,·<a·href="#t:global_state/0"><code·class="inline">global_state/0</code></a>,·which·holds·necessary·information |
| 774 | from·an·already·processed·schema.··Thus·validate·enables·reuse | 774 | from·an·already·processed·schema.··Thus·validate·enables·reuse |
| 775 | of·the·schema·information·and·therefore·if·one·shall·validate | 775 | of·the·schema·information·and·therefore·if·one·shall·validate |
| 776 | several·times·towards·the·same·schema·it·reduces·time·consumption.</p><p>The·result,·<code·class="inline">ValidElement</code>,·is·the·valid·element·that·conforms·to·the | 776 | several·times·towards·the·same·schema·it·reduces·time·consumption.</p><p>The·result,·<code·class="inline">ValidElement</code>,·is·the·valid·element·that·conforms·to·the |
| 777 | post-schema-validation·infoset.·When·the·validator·finds·an·error·it·tries·to | 777 | post-schema-validation·infoset.·When·the·validator·finds·an·error·it·tries·to |
| 778 | continue·and·reports·a·list·of·all·errors·found.·In·those·cases·an·unexpected | 778 | continue·and·reports·a·list·of·all·errors·found.·In·those·cases·an·unexpected |
| 779 | error·is·found·it·may·cause·a·single·error·reason.</p><p>Usage·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="mi">1</span><span·class="o">></span><span·class="p"·data-group-id="3 | 779 | error·is·found·it·may·cause·a·single·error·reason.</p><p>Usage·example:</p><pre><code·class="makeup·erlang"·translate="no"><span·class="mi">1</span><span·class="o">></span><span·class="p"·data-group-id="8357599833-1">{</span><span·class="n">E</span><span·class="p">,</span><span·class="p">_</span><span·class="p"·data-group-id="8357599833-1">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">xmerl_scan</span><sp[·...·truncated·by·diffoscope;·len:·197,·SHA:·88560ea9a46d779766afd54d27b3bf37cb6a45c72c0de570fcb9ab44aa00941c·...·]-2">)</span><span·class="p">.</span><span·class="w"> |
| 780 | </span><span·class="mi">2</span><span·class="o">></span><span·class="p"·data-group-id="3 | 780 | </span><span·class="mi">2</span><span·class="o">></span><span·class="p"·data-group-id="8357599833-3">{</span><span·class="ss">ok</span><span·class="p">,</span><span·class="n">S</span><span·class="p"·data-group-id="8357599833-3">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">xmerl_xsd</span><s[·...·truncated·by·diffoscope;·len:·206,·SHA:·5d62e8e36388910032f441c81a8e10e412a77f904b633fd66354687d2ee96a5d·...·]-4">)</span><span·class="p">.</span><span·class="w"> |
| 781 | </span><span·class="mi">3</span><span·class="o">></span><span·class="p"·data-group-id="3 | 781 | </span><span·class="mi">3</span><span·class="o">></span><span·class="p"·data-group-id="8357599833-5">{</span><span·class="n">E2</span><span·class="p">,</span><span·class="p">_</span><span·class="p"·data-group-id="8357599833-5">}</span><span·class="w">·</span><span·class="o">=</span><span·class="w">·</span><span·class="nc">xmerl_xsd</span><sp[·...·truncated·by·diffoscope;·len:·219,·SHA:·cff9634d356f7ac3ebd5596d13edd2f36905a988092509f182e7abaa454f746b·...·]-6">)</span><span·class="p">.</span></code></pre><p>Observe·that·E2·may·differ·from·E·if·for·instance·there·are·default·values |
| 782 | defined·in·<code·class="inline">my_XML_Schema.xsd</code>.</p> | 782 | defined·in·<code·class="inline">my_XML_Schema.xsd</code>.</p> |
| 783 | ··</section> | 783 | ··</section> |
| 784 | </section> | 784 | </section> |
| 785 | ····</div> | 785 | ····</div> |
| 786 | ··</section> | 786 | ··</section> |
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| 800 | ······<p·class="built-using"> | 800 | ······<p·class="built-using"> |
| 801 | ········Built·using | 801 | ········Built·using |
| 802 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the | 802 | ········<a·href="https://github.com/elixir-lang/ex_doc"·title="ExDoc"·target="_blank"·rel="help·noopener"·translate="no">ExDoc</a>·(v0.35.1)·for·the |
| 803 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> | 803 | ··········<a·href="https://erlang.org"·title="Erlang"·target="_blank"·translate="no">Erlang·programming·language</a> |
| 804 | ······</p> | 804 | ······</p> |
| 805 | <p>Copyright·©·1996-202 | 805 | <p>Copyright·©·1996-2026·<a·href="https://www.ericsson.com">Ericsson·AB</a></p> |
| 806 | ····</footer> | 806 | ····</footer> |
| 807 | ··</div> | 807 | ··</div> |
| 808 | </main> | 808 | </main> |
| 809 | </div> | 809 | </div> |
| 810 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> | 810 | ··<script·defer·src="https://cdn.jsdelivr.net/npm/mermaid@11.4.1/dist/mermaid.min.js"></script> |
| 811 | ··<script> | 811 | ··<script> |
| 812 | ··let·initialized·=·false; | 812 | ··let·initialized·=·false; |
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| 1 | Package:·erlang-src | 1 | Package:·erlang-src |
| 2 | Source:·erlang | 2 | Source:·erlang |
| 3 | Version:·1:28.0+dfsg-1 | 3 | Version:·1:28.0+dfsg-1 |
| 4 | Architecture:·all | 4 | Architecture:·all |
| 5 | Maintainer:·Debian·Erlang·Packagers·<pkg-erlang-devel@lists.alioth.debian.org> | 5 | Maintainer:·Debian·Erlang·Packagers·<pkg-erlang-devel@lists.alioth.debian.org> |
| 6 | Installed-Size:·4846 | 6 | Installed-Size:·48464 |
| 7 | Depends:·erlang-base:any·(>=·1:28.0+dfsg-1),·erlang-base:any·(<<·1:28.0+dfsg-1.0) | 7 | Depends:·erlang-base:any·(>=·1:28.0+dfsg-1),·erlang-base:any·(<<·1:28.0+dfsg-1.0) |
| 8 | Suggests:·erlang,·erlang-doc | 8 | Suggests:·erlang,·erlang-doc |
| 9 | Replaces:·erlang:any·(<<·1:28.0+dfsg-1),·erlang-base:any·(<<·1:28.0+dfsg-1),·erlang-base-hipe:any,·erlang-dev:any·(<<·1:28.0+dfsg-1),·erlang-erl-docgen:any,·erlang-examples·(<<·1:28.0+dfsg-1),·erlang-mode·(<<·1:12.b.1-dfsg-2),·erlang-nox·(<<·1:28.0+dfsg-1),·erlang-x11·(<<·1:28.0+dfsg-1) | 9 | Replaces:·erlang:any·(<<·1:28.0+dfsg-1),·erlang-base:any·(<<·1:28.0+dfsg-1),·erlang-base-hipe:any,·erlang-dev:any·(<<·1:28.0+dfsg-1),·erlang-erl-docgen:any,·erlang-examples·(<<·1:28.0+dfsg-1),·erlang-mode·(<<·1:12.b.1-dfsg-2),·erlang-nox·(<<·1:28.0+dfsg-1),·erlang-x11·(<<·1:28.0+dfsg-1) |
| 10 | Section:·interpreters | 10 | Section:·interpreters |
| 11 | Priority:·optional | 11 | Priority:·optional |
| 12 | Multi-Arch:·foreign | 12 | Multi-Arch:·foreign |
| 13 | Homepage:·http://www.erlang.org/ | 13 | Homepage:·http://www.erlang.org/ |
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| 1010 | -rw-r--r--···0·root·········(0)·root·········(0)···708356·2025-05-21·08:22:24.000000·./usr/lib/erlang/lib/public_key-1.18/src/pubkey_moduli.hrl | 1010 | -rw-r--r--···0·root·········(0)·root·········(0)···708356·2025-05-21·08:22:24.000000·./usr/lib/erlang/lib/public_key-1.18/src/pubkey_moduli.hrl |
| 1011 | -rw-r--r--···0·root·········(0)·root·········(0)····12580·2025-05-21·08:22:24.000000·./usr/lib/erlang/lib/public_key-1.18/src/pubkey_ocsp.erl | 1011 | -rw-r--r--···0·root·········(0)·root·········(0)····12580·2025-05-21·08:22:24.000000·./usr/lib/erlang/lib/public_key-1.18/src/pubkey_ocsp.erl |
| 1012 | -rw-r--r--···0·root·········(0)·root·········(0)····10294·2025-05-21·08:22:24.000000·./usr/lib/erlang/lib/public_key-1.18/src/pubkey_os_cacerts.erl | 1012 | -rw-r--r--···0·root·········(0)·root·········(0)····10294·2025-05-21·08:22:24.000000·./usr/lib/erlang/lib/public_key-1.18/src/pubkey_os_cacerts.erl |
| 1013 | -rw-r--r--···0·root·········(0)·root·········(0)····15088·2025-05-21·08:22:24.000000·./usr/lib/erlang/lib/public_key-1.18/src/pubkey_pbe.erl | 1013 | -rw-r--r--···0·root·········(0)·root·········(0)····15088·2025-05-21·08:22:24.000000·./usr/lib/erlang/lib/public_key-1.18/src/pubkey_pbe.erl |
| Offset 189, 33 lines modified | Offset 189, 33 lines modified | ||
| 189 | getenc_SignatureAlgorithmSet/1, | 189 | getenc_SignatureAlgorithmSet/1, |
| 190 | getenc_KeyEncryptionAlgorithmSet/1, | 190 | getenc_KeyEncryptionAlgorithmSet/1, |
| 191 | getenc_ContentEncryptionAlgorithmSet/1, | 191 | getenc_ContentEncryptionAlgorithmSet/1, |
| 192 | getenc_MessageAuthenticationCodeAlgorithmSet/1, | 192 | getenc_MessageAuthenticationCodeAlgorithmSet/1, |
| 193 | getenc_SupportedOtherRevokInfo/1, | 193 | getenc_SupportedOtherRevokInfo/1, |
| 194 | getenc_SupportedCertFormats/1, | 194 | getenc_SupportedCertFormats/1, |
| 195 | getenc_SupportedKeyAttributes/1, | 195 | getenc_SupportedKeyAttributes/1, |
| 196 | getenc_internal_object_set_argument_57/1, | ||
| 197 | getenc_internal_object_set_argument_56/1, | ||
| 198 | getenc_internal_object_set_argument_54/1, | ||
| 199 | getenc_internal_object_set_argument_53/1, | ||
| 200 | getenc_internal_object_set_argument_52/1, | ||
| 201 | getenc_internal_object_set_argument_51/1, | ||
| 202 | getenc_internal_object_set_argument_50/1, | ||
| 203 | getenc_internal_object_set_argument_2/1, | 196 | getenc_internal_object_set_argument_2/1, |
| 197 | getenc_internal_object_set_argument_39/1, | ||
| 204 | getenc_internal_object_set_argument_38/1, | 198 | getenc_internal_object_set_argument_38/1, |
| 205 | getenc_internal_object_set_argument_37/1, | 199 | getenc_internal_object_set_argument_37/1, |
| 206 | getenc_internal_object_set_argument_36/1, | 200 | getenc_internal_object_set_argument_36/1, |
| 207 | getenc_internal_object_set_argument_3 | 201 | getenc_internal_object_set_argument_34/1, |
| 202 | getenc_internal_object_set_argument_32/1, | ||
| 203 | getenc_internal_object_set_argument_30/1, | ||
| 208 | getenc_internal_object_set_argument_4 | 204 | getenc_internal_object_set_argument_43/1, |
| 209 | getenc_internal_object_set_argument_46/1, | ||
| 210 | getenc_internal_object_set_argument_44/1, | ||
| 211 | getenc_internal_object_set_argument_42/1, | 205 | getenc_internal_object_set_argument_42/1, |
| 212 | getenc_internal_object_set_argument_40/1, | 206 | getenc_internal_object_set_argument_40/1, |
| 213 | getenc_internal_object_set_argument_13/1, | 207 | getenc_internal_object_set_argument_13/1, |
| 214 | getenc_internal_object_set_argument_11/1 | 208 | getenc_internal_object_set_argument_11/1, |
| 209 | getenc_internal_object_set_argument_28/1, | ||
| 210 | getenc_internal_object_set_argument_26/1, | ||
| 211 | getenc_internal_object_set_argument_24/1, | ||
| 212 | getenc_internal_object_set_argument_23/1, | ||
| 213 | getenc_internal_object_set_argument_22/1, | ||
| 214 | getenc_internal_object_set_argument_21/1 | ||
| 215 | ]). | 215 | ]). |
| 216 | -export([ | 216 | -export([ |
| 217 | getdec_ContentSet/1, | 217 | getdec_ContentSet/1, |
| 218 | getdec_SignedAttributesSet/1, | 218 | getdec_SignedAttributesSet/1, |
| 219 | getdec_UnsignedAttributes/1, | 219 | getdec_UnsignedAttributes/1, |
| 220 | getdec_UnprotectedAttributes/1, | 220 | getdec_UnprotectedAttributes/1, |
| Offset 229, 33 lines modified | Offset 229, 33 lines modified | ||
| 229 | getdec_SignatureAlgorithmSet/1, | 229 | getdec_SignatureAlgorithmSet/1, |
| 230 | getdec_KeyEncryptionAlgorithmSet/1, | 230 | getdec_KeyEncryptionAlgorithmSet/1, |
| 231 | getdec_ContentEncryptionAlgorithmSet/1, | 231 | getdec_ContentEncryptionAlgorithmSet/1, |
| 232 | getdec_MessageAuthenticationCodeAlgorithmSet/1, | 232 | getdec_MessageAuthenticationCodeAlgorithmSet/1, |
| 233 | getdec_SupportedOtherRevokInfo/1, | 233 | getdec_SupportedOtherRevokInfo/1, |
| 234 | getdec_SupportedCertFormats/1, | 234 | getdec_SupportedCertFormats/1, |
| 235 | getdec_SupportedKeyAttributes/1, | 235 | getdec_SupportedKeyAttributes/1, |
| 236 | getdec_internal_object_set_argument_57/1, | ||
| 237 | getdec_internal_object_set_argument_56/1, | ||
| 238 | getdec_internal_object_set_argument_54/1, | ||
| 239 | getdec_internal_object_set_argument_53/1, | ||
| 240 | getdec_internal_object_set_argument_52/1, | ||
| 241 | getdec_internal_object_set_argument_51/1, | ||
| 242 | getdec_internal_object_set_argument_50/1, | ||
| 243 | getdec_internal_object_set_argument_2/1, | 236 | getdec_internal_object_set_argument_2/1, |
| 237 | getdec_internal_object_set_argument_39/1, | ||
| 244 | getdec_internal_object_set_argument_38/1, | 238 | getdec_internal_object_set_argument_38/1, |
| 245 | getdec_internal_object_set_argument_37/1, | 239 | getdec_internal_object_set_argument_37/1, |
| 246 | getdec_internal_object_set_argument_36/1, | 240 | getdec_internal_object_set_argument_36/1, |
| 247 | getdec_internal_object_set_argument_3 | 241 | getdec_internal_object_set_argument_34/1, |
| 242 | getdec_internal_object_set_argument_32/1, | ||
| 243 | getdec_internal_object_set_argument_30/1, | ||
| 248 | getdec_internal_object_set_argument_4 | 244 | getdec_internal_object_set_argument_43/1, |
| 249 | getdec_internal_object_set_argument_46/1, | ||
| 250 | getdec_internal_object_set_argument_44/1, | ||
| 251 | getdec_internal_object_set_argument_42/1, | 245 | getdec_internal_object_set_argument_42/1, |
| 252 | getdec_internal_object_set_argument_40/1, | 246 | getdec_internal_object_set_argument_40/1, |
| 253 | getdec_internal_object_set_argument_13/1, | 247 | getdec_internal_object_set_argument_13/1, |
| 254 | getdec_internal_object_set_argument_11/1 | 248 | getdec_internal_object_set_argument_11/1, |
| 249 | getdec_internal_object_set_argument_28/1, | ||
| 250 | getdec_internal_object_set_argument_26/1, | ||
| 251 | getdec_internal_object_set_argument_24/1, | ||
| 252 | getdec_internal_object_set_argument_23/1, | ||
| 253 | getdec_internal_object_set_argument_22/1, | ||
| 254 | getdec_internal_object_set_argument_21/1 | ||
| 255 | ]). | 255 | ]). |
| 256 | -export([ | 256 | -export([ |
| 257 | 'id-ct-contentInfo'/0, | 257 | 'id-ct-contentInfo'/0, |
| 258 | 'id-data'/0, | 258 | 'id-data'/0, |
| 259 | 'id-signedData'/0, | 259 | 'id-signedData'/0, |
| 260 | 'id-envelopedData'/0, | 260 | 'id-envelopedData'/0, |
| Offset 844, 15 lines modified | Offset 844, 15 lines modified | ||
| 844 | %%================================ | 844 | %%================================ |
| 845 | %%··SignerInfo_unsignedAttrs_Attribute | 845 | %%··SignerInfo_unsignedAttrs_Attribute |
| 846 | %%================================ | 846 | %%================================ |
| 847 | enc_SignerInfo_unsignedAttrs_Attribute(Val,·TagIn)·-> | 847 | enc_SignerInfo_unsignedAttrs_Attribute(Val,·TagIn)·-> |
| 848 | ···{_,Cindex1,Cindex2}·=·Val, | 848 | ···{_,Cindex1,Cindex2}·=·Val, |
| 849 | ObjattrType·=· | 849 | ObjattrType·=· |
| 850 | ···'CryptographicMessageSyntax-2009':'getenc_internal_object_set_argument_ | 850 | ···'CryptographicMessageSyntax-2009':'getenc_internal_object_set_argument_24'(···································Cindex1), |
| 851 | %%------------------------------------------------- | 851 | %%------------------------------------------------- |
| 852 | %%·attribute·attrType(1)·with·type·OBJECT·IDENTIFIER | 852 | %%·attribute·attrType(1)·with·type·OBJECT·IDENTIFIER |
| 853 | %%------------------------------------------------- | 853 | %%------------------------------------------------- |
| 854 | ···{EncBytes1,EncLen1}·=·encode_object_identifier(Cindex1,·[<<6>>]), | 854 | ···{EncBytes1,EncLen1}·=·encode_object_identifier(Cindex1,·[<<6>>]), |
| 855 | %%------------------------------------------------- | 855 | %%------------------------------------------------- |
| Offset 967, 15 lines modified | Offset 967, 15 lines modified | ||
| 967 | Tlv1·=·match_tags(Tlv,·TagIn), | 967 | Tlv1·=·match_tags(Tlv,·TagIn), |
| 968 | %%------------------------------------------------- | 968 | %%------------------------------------------------- |
| 969 | %%·attribute·attrType(1)·with·type·OBJECT·IDENTIFIER | 969 | %%·attribute·attrType(1)·with·type·OBJECT·IDENTIFIER |
| 970 | %%------------------------------------------------- | 970 | %%------------------------------------------------- |
| 971 | [V1|Tlv2]·=·Tlv1,· | 971 | [V1|Tlv2]·=·Tlv1,· |
| 972 | Term1·=·decode_object_identifier(V1,·[6]), | 972 | Term1·=·decode_object_identifier(V1,·[6]), |
| 973 | ObjFun·=·'CryptographicMessageSyntax-2009':'getdec_internal_object_set_argument_ | 973 | ObjFun·=·'CryptographicMessageSyntax-2009':'getdec_internal_object_set_argument_24'(Term1), |
| 974 | %%------------------------------------------------- | 974 | %%------------------------------------------------- |
| 975 | %%·attribute·attrValues(2)·with·type·SET·OF | 975 | %%·attribute·attrValues(2)·with·type·SET·OF |
| 976 | %%------------------------------------------------- | 976 | %%------------------------------------------------- |
| 977 | [V2|Tlv3]·=·Tlv2,· | 977 | [V2|Tlv3]·=·Tlv2,· |
| 978 | Term2·=·'dec_SignerInfo_unsignedAttrs_Attribute_attrValues'(V2,·[17],·ObjFun), | 978 | Term2·=·'dec_SignerInfo_unsignedAttrs_Attribute_attrValues'(V2,·[17],·ObjFun), |
| Offset 1026, 15 lines modified | Offset 1026, 15 lines modified | ||
| 1026 | %%================================ | 1026 | %%================================ |
| 1027 | %%··SignedAttributes_Attribute | 1027 | %%··SignedAttributes_Attribute |
| 1028 | %%================================ | 1028 | %%================================ |
| 1029 | enc_SignedAttributes_Attribute(Val,·TagIn)·-> | 1029 | enc_SignedAttributes_Attribute(Val,·TagIn)·-> |
| 1030 | ···{_,Cindex1,Cindex2}·=·Val, | 1030 | ···{_,Cindex1,Cindex2}·=·Val, |
| 1031 | ObjattrType·=· | 1031 | ObjattrType·=· |
| 1032 | ···'CryptographicMessageSyntax-2009':'getenc_internal_object_set_argument_ | 1032 | ···'CryptographicMessageSyntax-2009':'getenc_internal_object_set_argument_22'(···································Cindex1), |
| Max diff block lines reached; 40256/45736 bytes (88.02%) of diff not shown. | |||
| Offset 49, 23 lines modified | Offset 49, 23 lines modified | ||
| 49 | dec_SMimeCapsSet_smimeCaps/3, | 49 | dec_SMimeCapsSet_smimeCaps/3, |
| 50 | 'dec_aa-smimeCapabilities_smimeCaps'/3 | 50 | 'dec_aa-smimeCapabilities_smimeCaps'/3 |
| 51 | ]). | 51 | ]). |
| 52 | -export([ | 52 | -export([ |
| 53 | getenc_SMimeAttributeSet/1, | 53 | getenc_SMimeAttributeSet/1, |
| 54 | getenc_SMimeCapsSet/1, | 54 | getenc_SMimeCapsSet/1, |
| 55 | getenc_internal_object_set_argument_ | 55 | getenc_internal_object_set_argument_9/1, |
| 56 | getenc_internal_object_set_argument_ | 56 | getenc_internal_object_set_argument_8/1 |
| 57 | ]). | 57 | ]). |
| 58 | -export([ | 58 | -export([ |
| 59 | getdec_SMimeAttributeSet/1, | 59 | getdec_SMimeAttributeSet/1, |
| 60 | getdec_SMimeCapsSet/1, | 60 | getdec_SMimeCapsSet/1, |
| 61 | getdec_internal_object_set_argument_ | 61 | getdec_internal_object_set_argument_9/1, |
| 62 | getdec_internal_object_set_argument_ | 62 | getdec_internal_object_set_argument_8/1 |
| 63 | ]). | 63 | ]). |
| 64 | -export([ | 64 | -export([ |
| 65 | 'id-aa'/0, | 65 | 'id-aa'/0, |
| 66 | smimeCapabilities/0, | 66 | smimeCapabilities/0, |
| 67 | 'id-aa-encrypKeyPref'/0, | 67 | 'id-aa-encrypKeyPref'/0, |
| 68 | 'id-smime'/0, | 68 | 'id-smime'/0, |
| Offset 228, 15 lines modified | Offset 228, 15 lines modified | ||
| 228 | %%================================ | 228 | %%================================ |
| 229 | %%··aa-smimeCapabilities_SMIMECapabilities_SMIMECapability | 229 | %%··aa-smimeCapabilities_SMIMECapabilities_SMIMECapability |
| 230 | %%================================ | 230 | %%================================ |
| 231 | 'enc_aa-smimeCapabilities_SMIMECapabilities_SMIMECapability'(Val,·TagIn)·-> | 231 | 'enc_aa-smimeCapabilities_SMIMECapabilities_SMIMECapability'(Val,·TagIn)·-> |
| 232 | ···{_,Cindex1,Cindex2}·=·Val, | 232 | ···{_,Cindex1,Cindex2}·=·Val, |
| 233 | ObjcapabilityID·=· | 233 | ObjcapabilityID·=· |
| 234 | ···'SecureMimeMessageV3dot1-2009':'getenc_internal_object_set_argument_ | 234 | ···'SecureMimeMessageV3dot1-2009':'getenc_internal_object_set_argument_9'(···································Cindex1), |
| 235 | %%------------------------------------------------- | 235 | %%------------------------------------------------- |
| 236 | %%·attribute·capabilityID(1)·with·type·OBJECT·IDENTIFIER | 236 | %%·attribute·capabilityID(1)·with·type·OBJECT·IDENTIFIER |
| 237 | %%------------------------------------------------- | 237 | %%------------------------------------------------- |
| 238 | ···{EncBytes1,EncLen1}·=·encode_object_identifier(Cindex1,·[<<6>>]), | 238 | ···{EncBytes1,EncLen1}·=·encode_object_identifier(Cindex1,·[<<6>>]), |
| 239 | %%------------------------------------------------- | 239 | %%------------------------------------------------- |
| Offset 284, 15 lines modified | Offset 284, 15 lines modified | ||
| 284 | [V2|TempTlv3]·-> | 284 | [V2|TempTlv3]·-> |
| 285 | ····{decode_open_type(V2,·[]),·TempTlv3}; | 285 | ····{decode_open_type(V2,·[]),·TempTlv3}; |
| 286 | ····_·-> | 286 | ····_·-> |
| 287 | ········{·asn1_NOVALUE,·Tlv2} | 287 | ········{·asn1_NOVALUE,·Tlv2} |
| 288 | end, | 288 | end, |
| 289 | DecObjcapabilityIDTerm1·= | 289 | DecObjcapabilityIDTerm1·= |
| 290 | ···'SecureMimeMessageV3dot1-2009':'getdec_internal_object_set_argument_ | 290 | ···'SecureMimeMessageV3dot1-2009':'getdec_internal_object_set_argument_9'(Term1), |
| 291 | Term2·=· | 291 | Term2·=· |
| 292 | ···case·Tmpterm1·of | 292 | ···case·Tmpterm1·of |
| 293 | ······asn1_NOVALUE·->asn1_NOVALUE; | 293 | ······asn1_NOVALUE·->asn1_NOVALUE; |
| 294 | ······_·-> | 294 | ······_·-> |
| 295 | ·········case·(catch·DecObjcapabilityIDTerm1('Type',·Tmpterm1,·[]))·of | 295 | ·········case·(catch·DecObjcapabilityIDTerm1('Type',·Tmpterm1,·[]))·of |
| 296 | ············{'EXIT',·Reason1}·-> | 296 | ············{'EXIT',·Reason1}·-> |
| 297 | ···············exit({'Type·not·compatible·with·table·constraint',Reason1}); | 297 | ···············exit({'Type·not·compatible·with·table·constraint',Reason1}); |
| Offset 902, 898 lines modified | Offset 902, 898 lines modified | ||
| 902 | ··end. | 902 | ··end. |
| 903 | %%================================ | 903 | %%================================ |
| 904 | %%··internal_object_set_argument_ | 904 | %%··internal_object_set_argument_9 |
| 905 | %%================================ | 905 | %%================================ |
| 906 | getenc_internal_object_set_argument_ | 906 | getenc_internal_object_set_argument_9({1,2,840,10040,4,3})·-> |
| 907 | ···fun(Type,·Val,·_RestPrimFieldName)·-> | 907 | ···fun(Type,·Val,·_RestPrimFieldName)·-> |
| 908 | ······case·Type·of | 908 | ······case·Type·of |
| 909 | ·········'Type'·-> | 909 | ·········'Type'·-> |
| 910 | ···········case·Val·of | 910 | ···········case·Val·of |
| 911 | ·············{asn1_OPENTYPE,Bin}·when·is_binary(Bin)·-> | 911 | ·············{asn1_OPENTYPE,Bin}·when·is_binary(Bin)·-> |
| 912 | ···············{Bin,byte_size(Bin)} | 912 | ···············{Bin,byte_size(Bin)} |
| 913 | ···········end | 913 | ···········end |
| 914 | ······end | 914 | ······end |
| 915 | ···end; | 915 | ···end; |
| 916 | getenc_internal_object_set_argument_ | 916 | getenc_internal_object_set_argument_9({1,2,840,10045,4,1})·-> |
| 917 | ···fun(Type,·Val,·_RestPrimFieldName)·-> | 917 | ···fun(Type,·Val,·_RestPrimFieldName)·-> |
| 918 | ······case·Type·of | 918 | ······case·Type·of |
| 919 | ·········'Type'·-> | 919 | ·········'Type'·-> |
| 920 | ···········case·Val·of | 920 | ···········case·Val·of |
| 921 | ·············{asn1_OPENTYPE,Bin}·when·is_binary(Bin)·-> | 921 | ·············{asn1_OPENTYPE,Bin}·when·is_binary(Bin)·-> |
| 922 | ···············{Bin,byte_size(Bin)} | 922 | ···············{Bin,byte_size(Bin)} |
| 923 | ···········end | 923 | ···········end |
| 924 | ······end | 924 | ······end |
| 925 | ···end; | 925 | ···end; |
| 926 | getenc_internal_object_set_argument_ | 926 | getenc_internal_object_set_argument_9(Id)·when·Id·=:=·{1,2,840,113549,3,2}·-> |
| 927 | ····fun·'enc_cap-RC2CBC'/3; | 927 | ····fun·'enc_cap-RC2CBC'/3; |
| 928 | getenc_internal_object_set_argument_ | 928 | getenc_internal_object_set_argument_9({1,2,840,113549,3,7})·-> |
| 929 | ···fun(Type,·Val,·_RestPrimFieldName)·-> | 929 | ···fun(Type,·Val,·_RestPrimFieldName)·-> |
| 930 | ······case·Type·of | 930 | ······case·Type·of |
| 931 | ·········'Type'·-> | 931 | ·········'Type'·-> |
| 932 | ···········case·Val·of | 932 | ···········case·Val·of |
| 933 | ·············{asn1_OPENTYPE,Bin}·when·is_binary(Bin)·-> | 933 | ·············{asn1_OPENTYPE,Bin}·when·is_binary(Bin)·-> |
| 934 | ···············{Bin,byte_size(Bin)} | 934 | ···············{Bin,byte_size(Bin)} |
| 935 | ···········end | 935 | ···········end |
| 936 | ······end | 936 | ······end |
| 937 | ···end; | 937 | ···end; |
| 938 | getenc_internal_object_set_argument_ | 938 | getenc_internal_object_set_argument_9({1,2,840,10045,4,3,1})·-> |
| 939 | ···fun(Type,·Val,·_RestPrimFieldName)·-> | 939 | ···fun(Type,·Val,·_RestPrimFieldName)·-> |
| 940 | ······case·Type·of | 940 | ······case·Type·of |
| 941 | ·········'Type'·-> | 941 | ·········'Type'·-> |
| 942 | ···········case·Val·of | 942 | ···········case·Val·of |
| 943 | ·············{asn1_OPENTYPE,Bin}·when·is_binary(Bin)·-> | 943 | ·············{asn1_OPENTYPE,Bin}·when·is_binary(Bin)·-> |
| 944 | ···············{Bin,byte_size(Bin)} | 944 | ···············{Bin,byte_size(Bin)} |
| 945 | ···········end | 945 | ···········end |
| 946 | ······end | 946 | ······end |
| 947 | ···end; | 947 | ···end; |
| 948 | getenc_internal_object_set_argument_ | 948 | getenc_internal_object_set_argument_9({1,2,840,10045,4,3,2})·-> |
| 949 | ···fun(Type,·Val,·_RestPrimFieldName)·-> | 949 | ···fun(Type,·Val,·_RestPrimFieldName)·-> |
| 950 | ······case·Type·of | 950 | ······case·Type·of |
| 951 | ·········'Type'·-> | 951 | ·········'Type'·-> |
| 952 | ···········case·Val·of | 952 | ···········case·Val·of |
| 953 | ·············{asn1_OPENTYPE,Bin}·when·is_binary(Bin)·-> | 953 | ·············{asn1_OPENTYPE,Bin}·when·is_binary(Bin)·-> |
| 954 | ···············{Bin,byte_size(Bin)} | 954 | ···············{Bin,byte_size(Bin)} |
| 955 | ···········end | 955 | ···········end |
| 956 | ······end | 956 | ······end |
| 957 | ···end; | 957 | ···end; |
| 958 | getenc_internal_object_set_argument_ | 958 | getenc_internal_object_set_argument_9({1,2,840,10045,4,3,3})·-> |
| 959 | ···fun(Type,·Val,·_RestPrimFieldName)·-> | 959 | ···fun(Type,·Val,·_RestPrimFieldName)·-> |
| 960 | ······case·Type·of | 960 | ······case·Type·of |
| 961 | ·········'Type'·-> | 961 | ·········'Type'·-> |
| 962 | ···········case·Val·of | 962 | ···········case·Val·of |
| 963 | ·············{asn1_OPENTYPE,Bin}·when·is_binary(Bin)·-> | 963 | ·············{asn1_OPENTYPE,Bin}·when·is_binary(Bin)·-> |
| 964 | ···············{Bin,byte_size(Bin)} | 964 | ···············{Bin,byte_size(Bin)} |
| 965 | ···········end | 965 | ···········end |
| 966 | ······end | 966 | ······end |
| 967 | ···end; | 967 | ···end; |
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