![\"\"](\"https:\/\/demensdeum.com\/blog\/wp-content\/uploads\/2019\/03\/iamdev-1024x617.png\")
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\u0414\u043b\u044f \u043d\u0430\u0447\u0430\u043b\u0430 \u043d\u0430\u043f\u0438\u0448\u0435\u043c \u043f\u043b\u0430\u0433\u0438\u043d – \u0444\u0443\u043d\u043a\u0446\u0438\u044e \u043a\u043e\u0442\u043e\u0440\u0443\u044e \u0431\u0443\u0434\u0435\u043c \u0432\u044b\u0437\u044b\u0432\u0430\u0442\u044c:<\/p>\r\n
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#include \"iostream\"<\/span>\r\n\r\nusing<\/span> namespace<\/span> std;\r\n\r\nextern<\/span> \"C\"<\/span> void<\/span> extensionEntryPoint() {\r\n\tcout <<<\/span> \"Extension entry point called\"<\/span> <<<\/span> endl;\r\n};\r\n<\/pre>\r\n<\/div>\r\n<\/p>\r\n
\u0414\u0430\u043b\u0435\u0435 \u0441\u043e\u0431\u0435\u0440\u0435\u043c \u043f\u043b\u0430\u0433\u0438\u043d \u043a\u0430\u043a \u0434\u0438\u043d\u0430\u043c\u0438\u0447\u0435\u0441\u043a\u0443\u044e \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0443 “extension.so”<\/strong>, \u043a\u043e\u0442\u043e\u0440\u0443\u044e \u0438 \u0431\u0443\u0434\u0435\u043c \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0430\u0442\u044c \u0432 \u0434\u0430\u043b\u044c\u043d\u0435\u0439\u0448\u0435\u043c:
clang++ -shared -fPIC extension.cpp -o extension.so<\/strong><\/p>\r\n<\/p>\r\n
<\/p>\r\n
\u041d\u0430\u043f\u0438\u0448\u0435\u043c \u043e\u0441\u043d\u043e\u0432\u043e\u0435 \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0435, \u043a\u043e\u0442\u043e\u0440\u043e\u0435 \u0431\u0443\u0434\u0435\u0442 \u0437\u0430\u0433\u0440\u0443\u0436\u0430\u0442\u044c \u0444\u0430\u0439\u043b “extension.so”, \u0438\u0441\u043a\u0430\u0442\u044c \u0442\u0430\u043c \u0443\u043a\u0430\u0437\u0430\u0442\u0435\u043b\u044c \u043d\u0430 \u0444\u0443\u043d\u043a\u0446\u0438\u044e “extensionEntryPoint”, \u0438 \u0432\u044b\u0437\u044b\u0432\u0430\u0442\u044c \u0435\u0433\u043e, \u043f\u0435\u0447\u0430\u0442\u0430\u044f \u043e\u0448\u0438\u0431\u043a\u0438 \u043f\u0440\u0438 \u043d\u0435\u043e\u0431\u0445\u043e\u0434\u0438\u043c\u043e\u0441\u0442\u0438:<\/p>\r\n
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\r\n#include \"iostream\"<\/span>\r\n#include \"dlfcn.h\"<\/span>\r\n\r\nusing<\/span> namespace<\/span> std;\r\n\r\ntypedef<\/span> void<\/span> (*<\/span>VoidFunctionPointer)();\t\r\n\r\nint<\/span> main<\/span> (int<\/span> argc, char<\/span> *<\/span>argv[]) {\r\n\r\n\tcout <<<\/span> \"C++ Plugins Example\"<\/span> <<<\/span> endl;\r\n\r\n\tauto<\/span> extensionHandle =<\/span> dlopen(\".\/extension.so\"<\/span>, RTLD_LAZY);\r\n\tif<\/span> (!<\/span>extensionHandle) {\r\n\t\tstring errorString =<\/span> dlerror();\r\n\t\tthrow<\/span> runtime_error(errorString);\r\n\t}\r\n\r\n\tauto<\/span> functionPointer =<\/span> VoidFunctionPointer();\r\n\tfunctionPointer =<\/span> (VoidFunctionPointer) dlsym(extensionHandle, \"extensionEntryPoint\"<\/span>);\r\n\tauto<\/span> dlsymError =<\/span> dlerror();\r\n \tif<\/span> (dlsymError) {\r\n\t\tstring errorString =<\/span> dlerror();\r\n\t\tthrow<\/span> runtime_error(errorString);\r\n \t}\r\n\r\n\tfunctionPointer();\r\n\r\n\texit(0<\/span>);\r\n} \r\n<\/pre>\r\n<\/div>\r\n<\/p>\r\n
\u0424\u0443\u043d\u043a\u0446\u0438\u044f dlopen \u0432\u043e\u0437\u0432\u0440\u0430\u0449\u0430\u0435\u0442 \u0445\u044d\u043d\u0434\u043b\u0435\u0440 \u0434\u043b\u044f \u0440\u0430\u0431\u043e\u0442\u044b \u0441 \u0434\u0438\u043d\u0430\u043c\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u043e\u0439; \u0444\u0443\u043d\u043a\u0446\u0438\u044f dlsym \u0432\u043e\u0437\u0432\u0440\u0430\u0449\u0430\u0435\u0442 \u0443\u043a\u0430\u0437\u0430\u0442\u0435\u043b\u044c \u043d\u0430 \u043d\u0435\u043e\u0431\u0445\u043e\u0434\u0438\u043c\u0443\u044e \u0444\u0443\u043d\u043a\u0446\u0438\u044e \u043f\u043e \u0441\u0442\u0440\u043e\u043a\u0435; dlerror \u0441\u043e\u0434\u0435\u0440\u0436\u0438\u0442 \u0443\u043a\u0430\u0437\u0430\u0442\u0435\u043b\u044c \u043d\u0430 \u0441\u0442\u0440\u043e\u043a\u0443 \u0441 \u0442\u0435\u043a\u0441\u0442\u043e\u043c \u043e\u0448\u0438\u0431\u043a\u0438, \u0435\u0441\u043b\u0438 \u0442\u0430\u043a\u043e\u0432\u0430\u044f \u0438\u043c\u0435\u0435\u0442\u0441\u044f.<\/p>\r\n
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\u0414\u0430\u043b\u0435\u0435 \u0441\u043e\u0431\u0438\u0440\u0430\u0435\u043c \u043e\u0441\u043d\u043e\u0432\u043d\u043e\u0435 \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0435, \u043a\u043e\u043f\u0438\u0440\u0443\u0435\u043c \u0444\u0430\u0439\u043b \u0434\u0438\u043d\u0430\u043c\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 \u0432 \u043f\u0430\u043f\u043a\u0443 \u0441 \u043d\u0438\u043c \u0438 \u0437\u0430\u043f\u0443\u0441\u043a\u0430\u0435\u043c. \u041d\u0430 \u0432\u044b\u0445\u043e\u0434\u0435 \u0434\u043e\u043b\u0436\u0435\u043d \u0431\u044b\u0442\u044c \u0432\u044b\u0432\u043e\u0434 “Extension entry point called”<\/strong><\/p>\r\n<\/p>\r\n
<\/p>\r\n
\u041a \u0441\u043b\u043e\u0436\u043d\u044b\u043c \u043c\u043e\u043c\u0435\u043d\u0442\u0430\u043c \u043c\u043e\u0436\u043d\u043e \u043e\u0442\u043d\u0435\u0441\u0442\u0438 \u043e\u0442\u0441\u0443\u0442\u0441\u0442\u0432\u0438\u0435 \u0435\u0434\u0438\u043d\u043e\u0433\u043e \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u0430 \u0440\u0430\u0431\u043e\u0442\u044b \u0441 \u0434\u0438\u043d\u0430\u043c\u0438\u0447\u0435\u0441\u043a\u0438\u043c\u0438 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0430\u043c\u0438, \u0438\u0437-\u0437\u0430 \u044d\u0442\u043e\u0433\u043e \u0435\u0441\u0442\u044c \u043d\u0435\u043e\u0431\u0445\u043e\u0434\u0438\u043c\u043e\u0441\u0442\u044c \u044d\u043a\u0441\u043f\u043e\u0440\u0442\u0430 \u0444\u0443\u043d\u043a\u0446\u0438\u0438 \u0432 \u043e\u0442\u043d\u043e\u0441\u0438\u0442\u0435\u043b\u044c\u043d\u043e \u0433\u043b\u043e\u0431\u0430\u043b\u044c\u043d\u0443\u044e \u043e\u0431\u043b\u0430\u0441\u0442\u044c \u0432\u0438\u0434\u0438\u043c\u043e\u0441\u0442\u0438<\/em> \u0441 extern C<\/strong>; \u0440\u0430\u0437\u043d\u0438\u0446\u0430 \u0432 \u0440\u0430\u0431\u043e\u0442\u0435 \u0441 \u0440\u0430\u0437\u043d\u044b\u043c\u0438 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u044b\u043c\u0438 \u0441\u0438\u0441\u0442\u0435\u043c\u0430\u043c\u0438, \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u044b\u0435 \u0441 \u044d\u0442\u0438\u043c \u0442\u043e\u043d\u043a\u043e\u0441\u0442\u0438 \u0440\u0430\u0431\u043e\u0442\u044b; \u043e\u0442\u0441\u0443\u0442\u0441\u0442\u0432\u0438\u0435 C++ \u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441\u0430 \u0434\u043b\u044f \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u041e\u041e\u041f \u043f\u043e\u0434\u0445\u043e\u0434\u0430 \u043a \u0440\u0430\u0431\u043e\u0442\u0435 \u0441 \u0434\u0438\u043d\u0430\u043c\u0438\u0447\u0435\u0441\u043a\u0438\u043c\u0438 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0430\u043c\u0438, \u043e\u0434\u043d\u0430\u043a\u043e \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u0443\u044e\u0442 open-source \u0432\u0440\u0430\u043f\u043f\u0435\u0440\u044b, \u043d\u0430\u043f\u0440\u0438\u043c\u0435\u0440 m-renaud\/libdlibxx<\/a><\/p>\r\n<\/p>\r\n
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\u0418\u0441\u0445\u043e\u0434\u043d\u044b\u0439 \u043a\u043e\u0434 \u043f\u0440\u0438\u043c\u0435\u0440\u0430<\/h2>\r\n
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https:\/\/gitlab.com\/demensdeum\/cpppluginsexample<\/a><\/p>\r\n<\/p>\r\n
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\u0418\u0441\u0442\u043e\u0447\u043d\u0438\u043a\u0438<\/h2>\r\n
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http:\/\/man7.org\/linux\/man-pages\/man3\/dlopen.3.htm<\/a>
https:\/\/gist.github.com\/tailriver\/30bf0c943325330b7b6a<\/a>
https:\/\/stackoverflow.com\/questions\/840501\/how-do-function-pointers-in-c-work<\/a><\/p>\r\n<\/p>","protected":false},"excerpt":{"rendered":"
\u0412 \u044d\u0442\u043e\u0439 \u0437\u0430\u043c\u0435\u0442\u043a\u0435 \u044f \u043e\u043f\u0438\u0448\u0443 \u043f\u0440\u0438\u043c\u0435\u0440 \u0434\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0444\u0443\u043d\u043a\u0446\u0438\u043e\u043d\u0430\u043b\u0430 \u0432 C++ \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0435 \u0441 \u043f\u043e\u043c\u043e\u0449\u044c\u044e \u043f\u043b\u0430\u0433\u0438\u043d\u043e\u0432. \u041e\u043f\u0438\u0441\u0430\u043d\u0430 \u043f\u0440\u0430\u043a\u0442\u0438\u0447\u0435\u0441\u043a\u0430\u044f \u0447\u0430\u0441\u0442\u044c \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u0434\u043b\u044f Linux, \u0441 \u0442\u0435\u043e\u0440\u0438\u0435\u0439 \u043c\u043e\u0436\u043d\u043e \u0431\u0443\u0434\u0435\u0442 \u043e\u0437\u043d\u0430\u043a\u043e\u043c\u0438\u0442\u044c\u0441\u044f \u043f\u043e \u0441\u0441\u044b\u043b\u043a\u0430\u043c \u0432 \u043a\u043e\u043d\u0446\u0435 \u0441\u0442\u0430\u0442\u044c\u0438. Composition over inheritance! \u0414\u043b\u044f \u043d\u0430\u0447\u0430\u043b\u0430 \u043d\u0430\u043f\u0438\u0448\u0435\u043c \u043f\u043b\u0430\u0433\u0438\u043d – \u0444\u0443\u043d\u043a\u0446\u0438\u044e \u043a\u043e\u0442\u043e\u0440\u0443\u044e \u0431\u0443\u0434\u0435\u043c \u0432\u044b\u0437\u044b\u0432\u0430\u0442\u044c: #include “iostream” using namespace std; extern “C” void extensionEntryPoint() { cout << “ExtensionContinue reading “\u0421++ \u043f\u043b\u0430\u0433\u0438\u043d\u044b”<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[61,52],"tags":[],"class_list":["post-1611","post","type-post","status-publish","format-standard","hentry","category-techie","category-tutorials","entry"],"translation":{"provider":"WPGlobus","version":"3.0.2","language":"ru","enabled_languages":["en","ru","zh","de","fr","ja","pt"],"languages":{"en":{"title":true,"content":true,"excerpt":false},"ru":{"title":true,"content":true,"excerpt":false},"zh":{"title":false,"content":false,"excerpt":false},"de":{"title":false,"content":false,"excerpt":false},"fr":{"title":false,"content":false,"excerpt":false},"ja":{"title":false,"content":false,"excerpt":false},"pt":{"title":false,"content":false,"excerpt":false}}},"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/demensdeum.com\/blog\/ru\/wp-json\/wp\/v2\/posts\/1611","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/demensdeum.com\/blog\/ru\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/demensdeum.com\/blog\/ru\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/demensdeum.com\/blog\/ru\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/demensdeum.com\/blog\/ru\/wp-json\/wp\/v2\/comments?post=1611"}],"version-history":[{"count":26,"href":"https:\/\/demensdeum.com\/blog\/ru\/wp-json\/wp\/v2\/posts\/1611\/revisions"}],"predecessor-version":[{"id":1691,"href":"https:\/\/demensdeum.com\/blog\/ru\/wp-json\/wp\/v2\/posts\/1611\/revisions\/1691"}],"wp:attachment":[{"href":"https:\/\/demensdeum.com\/blog\/ru\/wp-json\/wp\/v2\/media?parent=1611"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/demensdeum.com\/blog\/ru\/wp-json\/wp\/v2\/categories?post=1611"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/demensdeum.com\/blog\/ru\/wp-json\/wp\/v2\/tags?post=1611"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}