{"id":167,"date":"2026-03-24T13:55:06","date_gmt":"2026-03-24T05:55:06","guid":{"rendered":"https:\/\/codergodv.xyz\/?p=167"},"modified":"2026-03-24T13:55:07","modified_gmt":"2026-03-24T05:55:07","slug":"reactor%e6%a8%a1%e5%bc%8f","status":"publish","type":"post","link":"https:\/\/codergodv.xyz\/index.php\/2026\/03\/24\/reactor%e6%a8%a1%e5%bc%8f\/","title":{"rendered":"Reactor\u6a21\u5f0f"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">Reactor\u6a21\u5f0f<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Reactor\u6a21\u5f0f\u7684\u5b9a\u4e49<\/h3>\n\n\n\n<p>Reactor\u53cd\u5e94\u5668\u6a21\u5f0f\uff0c\u4e5f\u53eb\u505a\u5206\u53d1\u8005\u6a21\u5f0f\u6216\u901a\u77e5\u8005\u6a21\u5f0f\uff0c\u662f\u4e00\u79cd\u5c06\u5c31\u7eea\u4e8b\u4ef6\u6d3e\u53d1\u7ed9\u5bf9\u5e94\u670d\u52a1\u5904\u7406\u7a0b\u5e8f\u7684\u4e8b\u4ef6\u8bbe\u8ba1\u6a21\u5f0f\u3002<img decoding=\"async\" src=\"https:\/\/cdn.codergodv.xyz\/5bb67a581af3befe90327ccb6e8b0086.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Reactor\u6a21\u5f0f\u7684\u89d2\u8272\u6784\u6210<\/h3>\n\n\n\n<p>Reactor\u4e3b\u8981\u7531\u4ee5\u4e0b\u4e94\u4e2a\u89d2\u8272\u6784\u6210\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-center\" data-align=\"center\">\u89d2\u8272<\/th><th class=\"has-text-align-center\" data-align=\"center\">\u89e3\u91ca<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\">Handle\uff08\u53e5\u67c4\uff09<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u7528\u4e8e\u6807\u8bc6\u4e0d\u540c\u7684\u4e8b\u4ef6\uff0c\u672c\u8d28\u5c31\u662f\u4e00\u4e2a\u6587\u4ef6\u63cf\u8ff0\u7b26\u3002<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Sychronous Event Demultiplexer\uff08\u540c\u6b65\u4e8b\u4ef6\u5206\u79bb\u5668\uff09<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u672c\u8d28\u5c31\u662f\u4e00\u4e2a\u7cfb\u7edf\u8c03\u7528\uff0c\u7528\u4e8e\u7b49\u5f85\u4e8b\u4ef6\u7684\u53d1\u751f\u3002\u5bf9\u4e8eLinux\u6765\u8bf4\uff0c\u540c\u6b65\u4e8b\u4ef6\u5206\u79bb\u5668\u6307\u7684\u5c31\u662fI\/O\u591a\u8def\u590d\u7528\uff0c\u6bd4\u5982select\u3001poll\u3001epoll\u7b49\u3002<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Event Handler\uff08\u4e8b\u4ef6\u5904\u7406\u5668\uff09<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u7531\u591a\u4e2a\u56de\u8c03\u65b9\u6cd5\u6784\u6210\uff0c\u8fd9\u4e9b\u56de\u8c03\u65b9\u6cd5\u6784\u6210\u4e86\u4e0e\u5e94\u7528\u76f8\u5173\u7684\u5bf9\u4e8e\u67d0\u4e2a\u4e8b\u4ef6\u7684\u5904\u7406\u53cd\u9988\u3002<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Concrete Event Handler\uff08\u5177\u4f53\u4e8b\u4ef6\u5904\u7406\u5668\uff09<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u4e8b\u4ef6\u5904\u7406\u5668\u4e2d\u5404\u4e2a\u56de\u8c03\u65b9\u6cd5\u7684\u5177\u4f53\u5b9e\u73b0\u3002<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Initiation Dispatcher\uff08\u521d\u59cb\u5206\u53d1\u5668\uff09<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u521d\u59cb\u5206\u53d1\u5668\u5b9e\u9645\u4e0a\u5c31\u662fReactor\u89d2\u8272\uff0c\u521d\u59cb\u5206\u53d1\u5668\u4f1a\u901a\u8fc7\u540c\u6b65\u4e8b\u4ef6\u5206\u79bb\u5668\u6765\u7b49\u5f85\u4e8b\u4ef6\u7684\u53d1\u751f\uff0c\u5f53\u5bf9\u5e94\u4e8b\u4ef6\u5c31\u7eea\u65f6\u5c31\u8c03\u7528\u4e8b\u4ef6\u5904\u7406\u5668\uff0c\u6700\u540e\u8c03\u7528\u5bf9\u5e94\u7684\u56de\u8c03\u65b9\u6cd5\u6765\u5904\u7406\u8fd9\u4e2a\u4e8b\u4ef6\u3002<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Reactor\u6a21\u5f0f\u7684\u5de5\u4f5c\u6d41\u7a0b<\/h3>\n\n\n\n<p>Reactor\u6a21\u5f0f\u7684\u5de5\u4f5c\u6d41\u7a0b\u5982\u4e0b\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5f53\u5e94\u7528\u5411\u521d\u59cb\u5206\u53d1\u5668\u6ce8\u518c\u5177\u4f53\u4e8b\u4ef6\u5904\u7406\u5668\u65f6\uff0c\u5e94\u7528\u4f1a\u6807\u8bc6\u51fa\u8be5\u4e8b\u4ef6\u5904\u7406\u5668\u5e0c\u671b\u521d\u59cb\u5206\u53d1\u5668\u5728\u67d0\u4e2a\u4e8b\u4ef6\u53d1\u751f\u65f6\u5411\u5176\u901a\u77e5\uff0c\u8be5\u4e8b\u4ef6\u4e0eHandle\u5173\u8054\u3002<\/li>\n\n\n\n<li>\u521d\u59cb\u5206\u53d1\u5668\u4f1a\u8981\u6c42\u6bcf\u4e2a\u4e8b\u4ef6\u5904\u7406\u5668\u5411\u5176\u4f20\u9012\u5185\u90e8\u7684Handle\uff0c\u8be5Handle\u5411\u64cd\u4f5c\u7cfb\u7edf\u6807\u8bc6\u4e86\u4e8b\u4ef6\u5904\u7406\u5668\u3002<\/li>\n\n\n\n<li>\u5f53\u6240\u6709\u7684\u4e8b\u4ef6\u5904\u7406\u5668\u6ce8\u518c\u5b8c\u6bd5\u540e\uff0c\u5e94\u7528\u4f1a\u542f\u52a8\u521d\u59cb\u5206\u53d1\u5668\u7684\u4e8b\u4ef6\u5faa\u73af\uff0c\u8fd9\u65f6\u521d\u59cb\u5206\u53d1\u5668\u4f1a\u5c06\u6bcf\u4e2a\u4e8b\u4ef6\u5904\u7406\u5668\u7684Handle\u5408\u5e76\u8d77\u6765\uff0c\u5e76\u4f7f\u7528\u540c\u6b65\u4e8b\u4ef6\u5206\u79bb\u5668\u7b49\u5f85\u8fd9\u4e9b\u4e8b\u4ef6\u7684\u53d1\u751f\u3002<\/li>\n\n\n\n<li>\u5f53\u67d0\u4e2a\u4e8b\u4ef6\u5904\u7406\u5668\u7684Handle\u53d8\u4e3aReady\u72b6\u6001\u65f6\uff0c\u540c\u6b65\u4e8b\u4ef6\u5206\u79bb\u5668\u4f1a\u901a\u77e5\u521d\u59cb\u5206\u53d1\u5668\u3002<\/li>\n\n\n\n<li>\u521d\u59cb\u5206\u53d1\u5668\u4f1a\u5c06Ready\u72b6\u6001\u7684Handle\u4f5c\u4e3akey\uff0c\u6765\u5bfb\u627e\u5176\u5bf9\u5e94\u7684\u4e8b\u4ef6\u5904\u7406\u5668\u3002<\/li>\n\n\n\n<li>\u521d\u59cb\u5206\u53d1\u5668\u4f1a\u8c03\u7528\u5176\u5bf9\u5e94\u4e8b\u4ef6\u5904\u7406\u5668\u5f53\u4e2d\u5bf9\u5e94\u7684\u56de\u8c03\u65b9\u6cd5\u6765\u54cd\u5e94\u8be5\u4e8b\u4ef6\u3002<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">epoll ET\u670d\u52a1\u5668\uff08Reactor\u6a21\u5f0f\uff09<\/h2>\n\n\n\n<p>\u5982\u679c\u5728\u6b64\u4e4b\u524d\u6ca1\u6709\u4e86\u89e3\u8fc7Reactor\u6a21\u5f0f\uff0c\u76f8\u4fe1\u5728\u770b\u4e86Reactor\u6a21\u5f0f\u7684\u5de5\u4f5c\u6d41\u7a0b\u540e\u4e00\u5b9a\u662f\u4e00\u5934\u96fe\u6c34\uff0c\u4e0b\u9762\u6211\u4eec\u5b9e\u73b0\u4e00\u4e2aReactor\u6a21\u5f0f\u4e0b\u7684epoll ET\u670d\u52a1\u5668\uff0c\u6765\u611f\u53d7\u4e00\u4e0bReactor\u6a21\u5f0f\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u8bbe\u8ba1\u601d\u8def<\/h3>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>epoll ET\u670d\u52a1\u5668<\/p>\n<\/blockquote>\n\n\n\n<p>\u5728epoll ET\u670d\u52a1\u5668\u4e2d\uff0c\u6211\u4eec\u9700\u8981\u5904\u7406\u5982\u4e0b\u51e0\u79cd\u4e8b\u4ef6\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u8bfb\u4e8b\u4ef6\uff1a\u5982\u679c\u662f\u76d1\u542c\u5957\u63a5\u5b57\u7684\u8bfb\u4e8b\u4ef6\u5c31\u7eea\u5219\u8c03\u7528accept\u51fd\u6570\u83b7\u53d6\u5e95\u5c42\u7684\u8fde\u63a5\uff0c\u5982\u679c\u662f\u5176\u4ed6\u5957\u63a5\u5b57\u7684\u8bfb\u4e8b\u4ef6\u5c31\u7eea\u5219\u8c03\u7528recv\u51fd\u6570\u8bfb\u53d6\u5ba2\u6237\u7aef\u53d1\u6765\u7684\u6570\u636e\u3002<\/li>\n\n\n\n<li>\u5199\u4e8b\u4ef6\uff1a\u5199\u4e8b\u4ef6\u5c31\u7eea\u5219\u5c06\u5f85\u53d1\u9001\u7684\u6570\u636e\u5199\u5165\u5230\u53d1\u9001\u7f13\u51b2\u533a\u5f53\u4e2d\u3002<\/li>\n\n\n\n<li>\u5f02\u5e38\u4e8b\u4ef6\uff1a\u5f53\u67d0\u4e2a\u5957\u63a5\u5b57\u7684\u5f02\u5e38\u4e8b\u4ef6\u5c31\u7eea\u65f6\u6211\u4eec\u4e0d\u505a\u8fc7\u591a\u5904\u7406\uff0c\u76f4\u63a5\u5173\u95ed\u8be5\u5957\u63a5\u5b57\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u5f53epoll ET\u670d\u52a1\u5668\u76d1\u6d4b\u5230\u67d0\u4e00\u4e8b\u4ef6\u5c31\u7eea\u540e\uff0c\u5c31\u4f1a\u5c06\u8be5\u4e8b\u4ef6\u4ea4\u7ed9\u5bf9\u5e94\u7684\u670d\u52a1\u5904\u7406\u7a0b\u5e8f\u8fdb\u884c\u5904\u7406\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>Reactor\u6a21\u5f0f\u7684\u4e94\u4e2a\u89d2\u8272<\/p>\n<\/blockquote>\n\n\n\n<p>\u5728\u8fd9\u4e2aepoll ET\u670d\u52a1\u5668\u4e2d\uff0cReactor\u6a21\u5f0f\u4e2d\u7684\u4e94\u4e2a\u89d2\u8272\u5bf9\u5e94\u5982\u4e0b\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u53e5\u67c4\uff1a\u6587\u4ef6\u63cf\u8ff0\u7b26\u3002<\/li>\n\n\n\n<li>\u540c\u6b65\u4e8b\u4ef6\u5206\u79bb\u5668\uff1aI\/O\u591a\u8def\u590d\u7528epoll\u3002<\/li>\n\n\n\n<li>\u4e8b\u4ef6\u5904\u7406\u5668\uff1a\u5305\u62ec\u8bfb\u56de\u8c03\u3001\u5199\u56de\u8c03\u548c\u5f02\u5e38\u56de\u8c03\u3002<\/li>\n\n\n\n<li>\u5177\u4f53\u4e8b\u4ef6\u5904\u7406\u5668\uff1a\u8bfb\u56de\u8c03\u3001\u5199\u56de\u8c03\u548c\u5f02\u5e38\u56de\u8c03\u7684\u5177\u4f53\u5b9e\u73b0\u3002<\/li>\n\n\n\n<li>\u521d\u59cb\u5206\u53d1\u5668\uff1aReactor\u7c7b\u5f53\u4e2d\u7684Dispatcher\u51fd\u6570\u3002<\/li>\n<\/ul>\n\n\n\n<p>Dispatcher\u51fd\u6570\u8981\u505a\u7684\u5c31\u662f\u8c03\u7528epoll_wait\u51fd\u6570\u7b49\u5f85\u4e8b\u4ef6\u53d1\u751f\uff0c\u5f53\u6709\u4e8b\u4ef6\u53d1\u751f\u540e\u5c31\u5c06\u5c31\u7eea\u7684\u4e8b\u4ef6\u6d3e\u53d1\u7ed9\u5bf9\u5e94\u7684\u670d\u52a1\u5904\u7406\u7a0b\u5e8f\u5373\u53ef\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>EventItem\u7c7b<\/p>\n<\/blockquote>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5728Reactor\u7684\u5de5\u4f5c\u6d41\u7a0b\u4e2d\u8bf4\u5230\uff0c\u5728\u6ce8\u518c\u4e8b\u4ef6\u5904\u7406\u5668\u65f6\u9700\u8981\u5c06\u5176\u4e0eHandle\u5173\u8054\uff0c\u672c\u8d28\u4e0a\u5c31\u662f\u9700\u8981\u5c06\u8bfb\u56de\u8c03\u3001\u5199\u56de\u8c03\u548c\u5f02\u5e38\u56de\u8c03\u4e0e\u67d0\u4e2a\u6587\u4ef6\u63cf\u8ff0\u7b26\u5173\u8054\u8d77\u6765\u3002<\/li>\n\n\n\n<li>\u8fd9\u6837\u505a\u7684\u76ee\u7684\u5c31\u662f\u4e3a\u4e86\u5f53\u67d0\u4e2a\u6587\u4ef6\u63cf\u8ff0\u7b26\u4e0a\u7684\u4e8b\u4ef6\u5c31\u7eea\u65f6\u53ef\u4ee5\u627e\u5230\u5176\u5bf9\u5e94\u7684\u5404\u79cd\u56de\u8c03\u51fd\u6570\uff0c\u8fdb\u800c\u6267\u884c\u5bf9\u5e94\u7684\u56de\u8c03\u65b9\u6cd5\u6765\u5904\u7406\u8be5\u4e8b\u4ef6\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u6240\u4ee5\u6211\u4eec\u53ef\u4ee5\u8bbe\u8ba1\u4e00\u4e2aEventItem\u7c7b\uff0c\u8be5\u7c7b\u5f53\u4e2d\u7684\u6210\u5458\u5c31\u5305\u62ec\u4e00\u4e2a\u6587\u4ef6\u63cf\u8ff0\u7b26\uff0c\u4ee5\u53ca\u8be5\u6587\u4ef6\u63cf\u8ff0\u7b26\u5bf9\u5e94\u7684\u5404\u79cd\u56de\u8c03\u51fd\u6570\uff0c\u6b64\u5916\u8fd8\u6709\u4e00\u4e9b\u5176\u4ed6\u6210\u5458\uff0c\u540e\u9762\u5b9e\u73b0\u7684\u65f6\u5019\u518d\u505a\u8be6\u7ec6\u8bba\u8ff0\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>Reactor\u7c7b<\/p>\n<\/blockquote>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5728Reactor\u7684\u5de5\u4f5c\u6d41\u7a0b\u4e2d\u8bf4\u5230\uff0c\u5f53\u6240\u6709\u4e8b\u4ef6\u5904\u7406\u5668\u6ce8\u518c\u5b8c\u6bd5\u540e\uff0c\u4f1a\u4f7f\u7528\u540c\u6b65\u4e8b\u4ef6\u5206\u79bb\u5668\u7b49\u5f85\u8fd9\u4e9b\u4e8b\u4ef6\u53d1\u751f\uff0c\u5f53\u67d0\u4e2a\u4e8b\u4ef6\u5904\u7406\u5668\u7684Handle\u53d8\u4e3aReady\u72b6\u6001\u65f6\uff0c\u540c\u6b65\u4e8b\u4ef6\u5206\u79bb\u5668\u4f1a\u901a\u77e5\u521d\u59cb\u5206\u53d1\u5668\uff0c\u7136\u540e\u521d\u59cb\u5206\u53d1\u5668\u4f1a\u5c06Ready\u72b6\u6001\u7684Handle\u4f5c\u4e3akey\u6765\u5bfb\u627e\u5176\u5bf9\u5e94\u7684\u4e8b\u4ef6\u5904\u7406\u5668\uff0c\u5e76\u8c03\u7528\u8be5\u4e8b\u4ef6\u5904\u7406\u5668\u4e2d\u5bf9\u5e94\u7684\u56de\u8c03\u65b9\u6cd5\u6765\u54cd\u5e94\u8be5\u4e8b\u4ef6\u3002<\/li>\n\n\n\n<li>\u672c\u8d28\u5c31\u662f\u5f53\u4e8b\u4ef6\u6ce8\u518c\u5b8c\u6bd5\u540e\uff0c\u4f1a\u8c03\u7528epoll_wait\u51fd\u6570\u6765\u7b49\u5f85\u8fd9\u4e9b\u4e8b\u4ef6\u53d1\u751f\uff0c\u5f53\u67d0\u4e2a\u4e8b\u4ef6\u5c31\u7eea\u65f6epoll_wait\u51fd\u6570\u4f1a\u544a\u77e5\u8c03\u7528\u65b9\uff0c\u7136\u540e\u8c03\u7528\u65b9\u5c31\u6839\u636e\u5c31\u7eea\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u6765\u627e\u5230\u5176\u5bf9\u5e94\u7684\u5404\u79cd\u56de\u8c03\u51fd\u6570\uff0c\u5e76\u8c03\u7528\u5bf9\u5e94\u7684\u56de\u8c03\u51fd\u6570\u8fdb\u884c\u4e8b\u4ef6\u5904\u7406\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u5bf9\u6b64\u6211\u4eec\u53ef\u4ee5\u8bbe\u8ba1\u4e00\u4e2aReactor\u7c7b\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u8be5\u7c7b\u5f53\u4e2d\u6709\u4e00\u4e2a\u6210\u5458\u51fd\u6570\u53eb\u505aDispatcher\uff0c\u8fd9\u4e2a\u51fd\u6570\u5c31\u662f\u6240\u8c13\u7684\u521d\u59cb\u5206\u53d1\u5668\uff0c\u5728\u8be5\u51fd\u6570\u5185\u90e8\u4f1a\u8c03\u7528epoll_wait\u51fd\u6570\u7b49\u5f85\u4e8b\u4ef6\u7684\u53d1\u751f\uff0c\u5f53\u4e8b\u4ef6\u53d1\u751f\u540e\u4f1a\u544a\u77e5Dispatcher\u5df2\u7ecf\u5c31\u7eea\u7684\u4e8b\u4ef6\u3002<\/li>\n\n\n\n<li>\u5f53\u4e8b\u4ef6\u5c31\u7eea\u540e\u9700\u8981\u6839\u636e\u5c31\u7eea\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u6765\u627e\u5230\u5176\u5bf9\u5e94\u7684\u5404\u79cd\u56de\u8c03\u51fd\u6570\uff0c\u7531\u4e8e\u6211\u4eec\u4f1a\u5c06\u6bcf\u4e2a\u6587\u4ef6\u63cf\u8ff0\u7b26\u53ca\u5176\u5bf9\u5e94\u7684\u5404\u79cd\u56de\u8c03\u90fd\u5c01\u88c5\u5230\u4e00\u4e2aEventItem\u7ed3\u6784\u5f53\u4e2d\uff0c\u6240\u4ee5\u5b9e\u9645\u6211\u4eec\u5c31\u662f\u9700\u8981\u6839\u636e\u6587\u4ef6\u63cf\u8ff0\u7b26\u627e\u5230\u5176\u5bf9\u5e94\u7684EventItem\u7ed3\u6784\u3002<\/li>\n\n\n\n<li>\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528C++ STL\u5f53\u4e2d\u7684unordered_map\uff0c\u6765\u5efa\u7acb\u5404\u4e2a\u6587\u4ef6\u63cf\u8ff0\u7b26\u4e0e\u5176\u5bf9\u5e94\u7684EventItem\u7ed3\u6784\u4e4b\u95f4\u7684\u6620\u5c04\uff0c\u8fd9\u4e2aunordered_map\u53ef\u4ee5\u4f5c\u4e3aReactor\u7c7b\u7684\u4e00\u4e2a\u6210\u5458\u53d8\u91cf\uff0c\u5f53\u9700\u8981\u627e\u67d0\u4e2a\u6587\u4ef6\u63cf\u8ff0\u7b26\u7684EventItem\u7ed3\u6784\u65f6\u5c31\u53ef\u4ee5\u901a\u8fc7\u8be5\u6210\u5458\u53d8\u91cf\u627e\u5230\u3002<\/li>\n\n\n\n<li>\u5f53\u7136\uff0cReactor\u7c7b\u5f53\u4e2d\u8fd8\u9700\u8981\u63d0\u4f9b\u6210\u5458\u51fd\u6570AddEvent\u548cDelEvent\uff0c\u7528\u4e8e\u5411Dispatcher\u5f53\u4e2d\u6ce8\u518c\u548c\u5220\u9664\u4e8b\u4ef6\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u6b64\u5916\uff0c\u5728Reactor\u7c7b\u5f53\u4e2d\u8fd8\u6709\u4e00\u4e9b\u5176\u4ed6\u6210\u5458\uff0c\u540e\u9762\u5b9e\u73b0\u7684\u65f6\u5019\u518d\u505a\u8be6\u7ec6\u8bba\u8ff0\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>epoll ET\u670d\u52a1\u5668\u7684\u5de5\u4f5c\u6d41\u7a0b<\/p>\n<\/blockquote>\n\n\n\n<p>\u8fd9\u4e2aepoll ET\u670d\u52a1\u5668\u5728Reactor\u6a21\u5f0f\u4e0b\u7684\u5de5\u4f5c\u6d41\u7a0b\u5982\u4e0b\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u9996\u5148epoll ET\u670d\u52a1\u5668\u9700\u8981\u8fdb\u884c\u5957\u63a5\u5b57\u7684\u521b\u5efa\u3001\u7ed1\u5b9a\u548c\u76d1\u542c\u3002<\/li>\n\n\n\n<li>\u7136\u540e\u5b9a\u4e49\u4e00\u4e2aReactor\u5bf9\u8c61\u5e76\u521d\u59cb\u5316\uff0c\u521d\u59cb\u5316\u65f6\u8981\u505a\u7684\u5c31\u662f\u521b\u5efaepoll\u6a21\u578b\u3002<\/li>\n\n\n\n<li>\u7d27\u63a5\u7740\u9700\u8981\u4e3a\u76d1\u542c\u5957\u63a5\u5b57\u521b\u5efa\u5bf9\u5e94\u7684EventItem\u7ed3\u6784\uff0c\u5e76\u8c03\u7528Reactor\u7c7b\u4e2d\u63d0\u4f9b\u7684AddEvent\u51fd\u6570\u5c06\u76d1\u542c\u5957\u63a5\u5b57\u6dfb\u52a0\u5230epoll\u6a21\u578b\u4e2d\uff0c\u5e76\u5efa\u7acb\u76d1\u542c\u5957\u63a5\u5b57\u4e0e\u5176\u5bf9\u5e94\u7684EventItem\u7ed3\u6784\u4e4b\u95f4\u7684\u6620\u5c04\u5173\u7cfb\u3002<\/li>\n\n\n\n<li>\u4e4b\u540e\u5c31\u53ef\u4ee5\u4e0d\u65ad\u8c03\u7528Reactor\u7c7b\u4e2d\u7684Dispatcher\u51fd\u6570\u8fdb\u884c\u4e8b\u4ef6\u6d3e\u53d1\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u5728\u4e8b\u4ef6\u5904\u7406\u8fc7\u7a0b\u4e2d\uff0c\u4f1a\u4e0d\u65ad\u5411Dispatcher\u5f53\u4e2d\u65b0\u589e\u6216\u5220\u9664\u4e8b\u4ef6\uff0c\u800c\u6bcf\u4e2a\u4e8b\u4ef6\u5c31\u7eea\u65f6\u90fd\u4f1a\u81ea\u52a8\u8c03\u7528\u5176\u5bf9\u5e94\u7684\u56de\u8c03\u51fd\u6570\u8fdb\u884c\u5904\u7406\uff0c\u6240\u4ee5\u6211\u4eec\u8981\u505a\u7684\u5c31\u662f\u4e0d\u65ad\u8c03\u7528Dispatcher\u51fd\u6570\u8fdb\u884c\u4e8b\u4ef6\u6d3e\u53d1\u5373\u53ef\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">EventItem\u7ed3\u6784<\/h3>\n\n\n\n<p>EventItem\u7ed3\u6784\u4e2d\u9664\u4e86\u5305\u542b\u6587\u4ef6\u63cf\u8ff0\u7b26\u548c\u5176\u5bf9\u5e94\u7684\u8bfb\u56de\u8c03\u3001\u5199\u56de\u8c03\u548c\u5f02\u5e38\u56de\u8c03\u4e4b\u5916\uff0c\u8fd8\u5305\u542b\u4e00\u4e2a\u8f93\u5165\u7f13\u51b2\u533ainbuffer\u3001\u4e00\u4e2a\u8f93\u51fa\u7f13\u51b2\u533aoutbuffer\u4ee5\u53ca\u4e00\u4e2a\u56de\u6307\u6307\u9488R\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5f53\u67d0\u4e2a\u6587\u4ef6\u63cf\u8ff0\u7b26\u7684\u8bfb\u4e8b\u4ef6\u5c31\u7eea\u65f6\uff0c\u6211\u4eec\u4f1a\u8c03\u7528recv\u51fd\u6570\u8bfb\u53d6\u5ba2\u6237\u7aef\u53d1\u6765\u7684\u6570\u636e\uff0c\u4f46\u6211\u4eec\u5e76\u4e0d\u80fd\u4fdd\u8bc1\u6211\u4eec\u8bfb\u53d6\u5230\u4e86\u4e00\u4e2a\u5b8c\u6574\u7684\u62a5\u6587\uff0c\u56e0\u6b64\u9700\u8981\u5c06\u8bfb\u53d6\u5230\u7684\u6570\u636e\u6682\u65f6\u5b58\u653e\u5230\u8be5\u6587\u4ef6\u63cf\u8ff0\u7b26\u5bf9\u5e94\u7684inbuffer\u5f53\u4e2d\uff0c\u5f53inbuffer\u5f53\u4e2d\u53ef\u4ee5\u5206\u79bb\u51fa\u4e00\u4e2a\u5b8c\u6574\u7684\u62a5\u6587\u540e\u518d\u5c06\u5176\u5206\u79bb\u51fa\u6765\u8fdb\u884c\u6570\u636e\u5904\u7406\uff0c\u8fd9\u91cc\u7684inbuffer\u672c\u8d28\u5c31\u662f\u7528\u6765\u89e3\u51b3\u7c98\u5305\u95ee\u9898\u7684\u3002<\/li>\n\n\n\n<li>\u5f53\u5904\u7406\u5b8c\u4e00\u4e2a\u62a5\u6587\u8bf7\u6c42\u540e\uff0c\u9700\u8981\u5c06\u54cd\u5e94\u6570\u636e\u53d1\u9001\u7ed9\u5ba2\u6237\u7aef\uff0c\u4f46\u6211\u4eec\u5e76\u4e0d\u80fd\u4fdd\u8bc1\u5e95\u5c42TCP\u7684\u53d1\u9001\u7f13\u51b2\u533a\u4e2d\u6709\u8db3\u591f\u7684\u7a7a\u95f4\u4f9b\u6211\u4eec\u5199\u5165\uff0c\u56e0\u6b64\u9700\u8981\u5c06\u8981\u53d1\u9001\u7684\u6570\u636e\u6682\u65f6\u5b58\u653e\u5230\u8be5\u6587\u4ef6\u63cf\u8ff0\u7b26\u5bf9\u5e94\u7684outbuffer\u5f53\u4e2d\uff0c\u5f53\u5e95\u5c42TCP\u7684\u53d1\u9001\u7f13\u51b2\u533a\u4e2d\u6709\u7a7a\u95f4\uff0c\u5373\u5199\u4e8b\u4ef6\u5c31\u7eea\u65f6\uff0c\u518d\u4f9d\u6b21\u53d1\u9001outbuffer\u5f53\u4e2d\u7684\u6570\u636e\u3002<\/li>\n\n\n\n<li>EventItem\u7ed3\u6784\u5f53\u4e2d\u8bbe\u7f6e\u56de\u6307\u6307\u9488R\uff0c\u4fbf\u4e8e\u5feb\u901f\u627e\u5230\u6211\u4eec\u5b9a\u4e49\u7684Reactor\u5bf9\u8c61\uff0c\u56e0\u4e3a\u540e\u7eed\u6211\u4eec\u9700\u8981\u6839\u636eEventItem\u7ed3\u6784\u627e\u5230\u8fd9\u4e2aReactor\u5bf9\u8c61\u3002\u6bd4\u5982\u5f53\u8fde\u63a5\u4e8b\u4ef6\u5c31\u7eea\u65f6\uff0c\u9700\u8981\u8c03\u7528Reactor\u7c7b\u5f53\u4e2d\u7684AddEvent\u51fd\u6570\u5c06\u5176\u6dfb\u52a0\u5230Dispatcher\u5f53\u4e2d\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u6b64\u5916\uff0cEventItem\u7ed3\u6784\u5f53\u4e2d\u9700\u8981\u63d0\u4f9b\u4e00\u4e2a\u7ba1\u7406\u56de\u8c03\u7684\u6210\u5458\u51fd\u6570\uff0c\u4fbf\u4e8e\u5916\u90e8\u5bf9EventItem\u7ed3\u6784\u5f53\u4e2d\u7684\u5404\u79cd\u56de\u8c03\u8fdb\u884c\u8bbe\u7f6e\u3002<\/p>\n\n\n\n<p>\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>typedef int(*callback_t)(EventItem*);\n\nclass EventItem{\npublic:\n    int _sock; \/\/\u6587\u4ef6\u63cf\u8ff0\u7b26\n    Reactor* _R; \/\/\u56de\u6307\u6307\u9488\n\n    callback_t _recv_handler; \/\/\u8bfb\u56de\u8c03\n    callback_t _send_handler; \/\/\u5199\u56de\u8c03\n    callback_t _error_handler; \/\/\u5f02\u5e38\u56de\u8c03\n\n    std::string _inbuffer; \/\/\u8f93\u5165\u7f13\u51b2\u533a\n    std::string _outbuffer; \/\/\u8f93\u51fa\u7f13\u51b2\u533a\npublic:\n    EventItem()\n        : _sock(-1)\n        , _R(nullptr)\n        , _recv_handler(nullptr)\n        , _send_handler(nullptr)\n        , _error_handler(nullptr)\n    {}\n    \/\/\u7ba1\u7406\u56de\u8c03\n    void ManageCallbacks(callback_t recv_handler, callback_t send_handler, callback_t error_handler)\n    {\n        _recv_handler = recv_handler;\n        _send_handler = send_handler;\n        _error_handler = error_handler;\n    }\n    ~EventItem()\n    {}\n};<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">Reactor\u7c7b<\/h3>\n\n\n\n<p>\u5728Reactor\u7c7b\u5f53\u4e2d\u6709\u4e00\u4e2aunordered_map\u6210\u5458\uff0c\u7528\u4e8e\u5efa\u7acb\u6587\u4ef6\u63cf\u8ff0\u7b26\u548c\u4e0e\u5176\u5bf9\u5e94\u7684EventItem\u7ed3\u6784\u4e4b\u95f4\u7684\u6620\u5c04\uff0c\u8fd8\u6709\u4e00\u4e2aepfd\u6210\u5458\uff0c\u8be5\u6210\u5458\u662fepoll\u6a21\u578b\u5bf9\u5e94\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5728\u521d\u59cb\u5316Reactor\u5bf9\u8c61\u7684\u65f6\u5019\u5c31\u53ef\u4ee5\u8c03\u7528epoll_create\u51fd\u6570\u521b\u5efaepoll\u6a21\u578b\uff0c\u5e76\u5c06\u8be5epoll\u6a21\u578b\u5bf9\u5e94\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u7528epfd\u6210\u5458\u8bb0\u5f55\u4e0b\u6765\uff0c\u4fbf\u4e8e\u540e\u7eed\u4f7f\u7528\u3002<\/li>\n\n\n\n<li>Reactor\u5bf9\u8c61\u5728\u6790\u6784\u7684\u65f6\u5019\uff0c\u9700\u8981\u8c03\u7528close\u51fd\u6570\u5c06\u8be5epoll\u6a21\u578b\u8fdb\u884c\u5173\u95ed\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>#define SIZE 256\n\nclass Reactor{\nprivate:\n    int _epfd; \/\/epoll\u6a21\u578b\n    std::unordered_map&lt;int, EventItem&gt; _event_items; \/\/\u5efa\u7acbsock\u4e0eEventItem\u7ed3\u6784\u7684\u6620\u5c04\npublic:\n    Reactor()\n        : _epfd(-1)\n    {}\n    void InitReactor()\n    {\n        \/\/\u521b\u5efaepoll\u6a21\u578b\n        _epfd = epoll_create(SIZE);\n        if (_epfd &lt; 0){\n            std::cerr &lt;&lt; \"epoll_create error\" &lt;&lt; std::endl;\n            exit(5);\n        }\n    }\n    ~Reactor()\n    {\n        if (_epfd &gt;= 0){\n            close(_epfd);\n        }\n    }\n};<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">Dispatcher\u51fd\u6570\uff08\u4e8b\u4ef6\u5206\u6d3e\u5668\uff09<\/h4>\n\n\n\n<p>Reactor\u7c7b\u5f53\u4e2d\u7684Dispatcher\u51fd\u6570\u5c31\u662f\u4e4b\u524d\u6240\u8bf4\u7684\u521d\u59cb\u5206\u53d1\u5668\uff0c\u8fd9\u91cc\u6211\u4eec\u66f4\u5f62\u8c61\u7684\u5c06\u5176\u79f0\u4e4b\u4e3a\u4e8b\u4ef6\u5206\u6d3e\u5668\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4e8b\u4ef6\u5206\u6d3e\u5668\u8981\u505a\u7684\u5c31\u662f\u8c03\u7528epoll_wait\u51fd\u6570\u7b49\u5f85\u4e8b\u4ef6\u53d1\u751f\u3002<\/li>\n\n\n\n<li>\u5f53\u67d0\u4e2a\u6587\u4ef6\u63cf\u8ff0\u7b26\u4e0a\u7684\u4e8b\u4ef6\u53d1\u751f\u540e\uff0c\u5148\u901a\u8fc7unordered_map\u627e\u5230\u8be5\u6587\u4ef6\u63cf\u8ff0\u7b26\u5bf9\u5e94\u7684EventItem\u7ed3\u6784\uff0c\u7136\u540e\u8c03\u7528EventItem\u7ed3\u6784\u5f53\u4e2d\u5bf9\u5e94\u7684\u56de\u8c03\u51fd\u6570\u5bf9\u8be5\u4e8b\u4ef6\u8fdb\u884c\u5904\u7406\u5373\u53ef\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>#define MAX_NUM 64\n\nclass Reactor{\nprivate:\n    int _epfd; \/\/epoll\u6a21\u578b\n    std::unordered_map&lt;int, EventItem&gt; _event_items; \/\/\u5efa\u7acbsock\u4e0eEventItem\u7ed3\u6784\u7684\u6620\u5c04\npublic:\n    \/\/\u4e8b\u4ef6\u5206\u6d3e\u5668\n    void Dispatcher(int timeout)\n    {\n        struct epoll_event revs&#91;MAX_NUM];\n        int num = epoll_wait(_epfd, revs, MAX_NUM, timeout);\n        for (int i = 0; i &lt; num; i++){\n            int sock = revs&#91;i].data.fd; \/\/\u5c31\u7eea\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\n            if ((revs&#91;i].events&amp;EPOLLERR) || (revs&#91;i].events&amp;EPOLLHUP)){ \/\/\u5f02\u5e38\u4e8b\u4ef6\u5c31\u7eea\uff08\u4f18\u5148\u5904\u7406\uff09\n                if (_event_items&#91;sock]._error_handler)\n                    _event_items&#91;sock]._error_handler(&amp;_event_items&#91;sock]); \/\/\u8c03\u7528\u5f02\u5e38\u56de\u8c03\n            }\n            if (revs&#91;i].events&amp;EPOLLIN){ \/\/\u8bfb\u4e8b\u4ef6\u5c31\u7eea\n                if (_event_items&#91;sock]._recv_handler)\n                    _event_items&#91;sock]._recv_handler(&amp;_event_items&#91;sock]); \/\/\u8c03\u7528\u8bfb\u56de\u8c03\n            }\n            if (revs&#91;i].events&amp;EPOLLOUT){ \/\/\u5199\u4e8b\u4ef6\u5c31\u7eea\n                if (_event_items&#91;sock]._send_handler)\n                    _event_items&#91;sock]._send_handler(&amp;_event_items&#91;sock]); \/\/\u8c03\u7528\u5199\u56de\u8c03\n            }\n        }\n    }\n};<\/code><\/pre>\n\n\n\n<p><strong>\u8bf4\u660e\u4e00\u4e0b\uff1a<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u8fd9\u91cc\u6ca1\u6709\u7528switch\u6216if\u8bed\u53e5\u5bf9epoll_wait\u51fd\u6570\u7684\u8fd4\u56de\u503c\u8fdb\u884c\u5224\u65ad\uff0c\u800c\u662f\u501f\u7528for\u5faa\u73af\u5bf9\u5176\u8fd4\u56de\u503c\u8fdb\u884c\u4e86\u5224\u65ad\u3002<\/li>\n\n\n\n<li>\u5982\u679cepoll_wait\u7684\u8fd4\u56de\u503c\u4e3a-1\u5219\u8bf4\u660eepoll_wait\u51fd\u6570\u8c03\u7528\u5931\u8d25\uff0c\u6b64\u65f6\u4e0d\u4f1a\u8fdb\u5165\u5230for\u5faa\u73af\u5185\u90e8\u8fdb\u884c\u4e8b\u4ef6\u5904\u7406\u3002<\/li>\n\n\n\n<li>\u5982\u679cepoll_wait\u7684\u8fd4\u56de\u503c\u4e3a0\u5219\u8bf4\u660eepoll_wait\u51fd\u6570\u8d85\u65f6\u8fd4\u56de\uff0c\u6b64\u65f6\u4e5f\u4e0d\u4f1a\u8fdb\u5165\u5230for\u5faa\u73af\u5185\u90e8\u8fdb\u884c\u4e8b\u4ef6\u5904\u7406\u3002<\/li>\n\n\n\n<li>\u5982\u679cepoll_wait\u7684\u8fd4\u56de\u503c\u5927\u4e8e0\u5219\u8bf4\u660eepoll_wait\u51fd\u6570\u8c03\u7528\u6210\u529f\uff0c\u6b64\u65f6\u624d\u4f1a\u8fdb\u5165\u5230for\u5faa\u73af\u5185\u90e8\u8c03\u7528\u5bf9\u5e94\u7684\u56de\u8c03\u51fd\u6570\u5bf9\u4e8b\u4ef6\u8fdb\u884c\u5904\u7406\u3002<\/li>\n\n\n\n<li>\u4e8b\u4ef6\u5904\u7406\u65f6\u6700\u597d\u5148\u5bf9\u5f02\u5e38\u4e8b\u4ef6\u8fdb\u884c\u5904\u7406\uff0c\u56e0\u6b64\u4ee3\u7801\u4e2d\u5c06\u5f02\u5e38\u4e8b\u4ef6\u7684\u5224\u65ad\u653e\u5728\u4e86\u6700\u524d\u9762\u3002<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">AddEvent\u51fd\u6570<\/h4>\n\n\n\n<p>Reactor\u7c7b\u5f53\u4e2d\u7684AddEvent\u51fd\u6570\u662f\u7528\u4e8e\u8fdb\u884c\u4e8b\u4ef6\u6ce8\u518c\u7684\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5728\u6ce8\u518c\u4e8b\u4ef6\u65f6\u9700\u8981\u4f20\u5165\u4e00\u4e2a\u6587\u4ef6\u63cf\u8ff0\u7b26\u548c\u4e00\u4e2a\u4e8b\u4ef6\u96c6\u5408\uff0c\u8868\u793a\u9700\u8981\u76d1\u89c6\u54ea\u4e2a\u6587\u4ef6\u63cf\u8ff0\u7b26\u4e0a\u7684\u54ea\u4e9b\u4e8b\u4ef6\u3002<\/li>\n\n\n\n<li>\u8fd8\u9700\u8981\u4f20\u5165\u8be5\u6587\u4ef6\u63cf\u8ff0\u7b26\u5bf9\u5e94\u7684EventItem\u7ed3\u6784\uff0c\u8868\u793a\u5f53\u8be5\u6587\u4ef6\u63cf\u8ff0\u7b26\u4e0a\u7684\u4e8b\u4ef6\u5c31\u7eea\u540e\u5e94\u8be5\u6267\u884c\u7684\u56de\u8c03\u65b9\u6cd5\u3002<\/li>\n\n\n\n<li>\u5728AddEvent\u51fd\u6570\u5185\u90e8\u8981\u505a\u7684\u5c31\u662f\uff0c\u8c03\u7528epoll_ctl\u51fd\u6570\u5c06\u8be5\u6587\u4ef6\u63cf\u8ff0\u7b26\u53ca\u5176\u5bf9\u5e94\u7684\u4e8b\u4ef6\u96c6\u5408\u6ce8\u518c\u5230epoll\u6a21\u578b\u5f53\u4e2d\uff0c\u7136\u540e\u5efa\u7acb\u8be5\u6587\u4ef6\u63cf\u8ff0\u7b26\u4e0e\u5176\u5bf9\u5e94\u7684EventItem\u7ed3\u6784\u7684\u6620\u5c04\u5173\u7cfb\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>class Reactor{\nprivate:\n    int _epfd; \/\/epoll\u6a21\u578b\n    std::unordered_map&lt;int, EventItem&gt; _event_items; \/\/\u5efa\u7acbsock\u4e0eEventItem\u7ed3\u6784\u7684\u6620\u5c04\npublic:\n    void AddEvent(int sock, uint32_t event, const EventItem&amp; item)\n    {\n        struct epoll_event ev;\n        ev.data.fd = sock;\n        ev.events = event;\n\n        if (epoll_ctl(_epfd, EPOLL_CTL_ADD, sock, &amp;ev) &lt; 0){ \/\/\u5c06\u8be5\u6587\u4ef6\u63cf\u8ff0\u7b26\u6dfb\u52a0\u5230epoll\u6a21\u578b\u5f53\u4e2d\n            std::cerr &lt;&lt; \"epoll_ctl add error, fd: \" &lt;&lt; sock &lt;&lt; std::endl;\n        }\n        else{\n            \/\/\u5efa\u7acbsock\u4e0eEventItem\u7ed3\u6784\u7684\u6620\u5c04\u5173\u7cfb\n            _event_items.insert({ sock, item });\n            std::cout &lt;&lt; \"\u6dfb\u52a0: \" &lt;&lt; sock &lt;&lt; \" \u5230epoll\u6a21\u578b\u4e2d\uff0c\u6210\u529f\" &lt;&lt; std::endl;\n        }\n    }\n};<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">DelEvent\u51fd\u6570<\/h4>\n\n\n\n<p>Reactor\u7c7b\u5f53\u4e2d\u7684DelEvent\u51fd\u6570\u662f\u7528\u4e8e\u8fdb\u884c\u4e8b\u4ef6\u5220\u9664\u7684\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5728\u5220\u9664\u4e8b\u4ef6\u65f6\u53ea\u9700\u8981\u4f20\u5165\u4e00\u4e2a\u6587\u4ef6\u63cf\u8ff0\u7b26\u5373\u53ef\u3002<\/li>\n\n\n\n<li>\u5728DelEvent\u51fd\u6570\u5185\u90e8\u8981\u505a\u7684\u5c31\u662f\uff0c\u8c03\u7528epoll_ctl\u51fd\u6570\u5c06\u8be5\u6587\u4ef6\u63cf\u8ff0\u7b26\u4eceepoll\u6a21\u578b\u4e2d\u5220\u9664\uff0c\u5e76\u53d6\u6d88\u8be5\u6587\u4ef6\u63cf\u8ff0\u7b26\u4e0e\u5176\u5bf9\u5e94\u7684EventItem\u7ed3\u6784\u7684\u6620\u5c04\u5173\u7cfb\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>class Reactor{\nprivate:\n    int _epfd; \/\/epoll\u6a21\u578b\n    std::unordered_map&lt;int, EventItem&gt; _event_items; \/\/\u5efa\u7acbsock\u4e0eEventItem\u7ed3\u6784\u7684\u6620\u5c04\npublic:\n    void DelEvent(int sock)\n    {\n        if (epoll_ctl(_epfd, EPOLL_CTL_DEL, sock, nullptr) &lt; 0){ \/\/\u5c06\u8be5\u6587\u4ef6\u63cf\u8ff0\u7b26\u4eceepoll\u6a21\u578b\u4e2d\u5220\u9664\n            std::cerr &lt;&lt; \"epoll_ctl del error, fd: \" &lt;&lt; sock &lt;&lt; std::endl;\n        }\n        else{\n            \/\/\u53d6\u6d88sock\u4e0eEventItem\u7ed3\u6784\u7684\u6620\u5c04\u5173\u7cfb\n            _event_items.erase(sock);\n            std::cout &lt;&lt; \"\u4eceepoll\u6a21\u578b\u4e2d\u5220\u9664: \" &lt;&lt; sock &lt;&lt; \"\uff0c\u6210\u529f\" &lt;&lt; std::endl;\n        }\n    }\n};<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">EnableReadWrite\u51fd\u6570<\/h4>\n\n\n\n<p>Reactor\u7c7b\u5f53\u4e2d\u7684EnableReadWrite\u51fd\u6570\uff0c\u7528\u4e8e\u4f7f\u80fd\u6216\u4f7f\u80fd\u67d0\u4e2a\u6587\u4ef6\u63cf\u8ff0\u7b26\u7684\u8bfb\u5199\u4e8b\u4ef6\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u8c03\u7528EnableReadWrite\u51fd\u6570\u65f6\u9700\u8981\u4f20\u5165\u4e00\u4e2a\u6587\u4ef6\u63cf\u8ff0\u7b26\uff0c\u8868\u793a\u9700\u8981\u8bbe\u7f6e\u7684\u662f\u54ea\u4e2a\u6587\u4ef6\u63cf\u8ff0\u7b26\u5bf9\u5e94\u7684\u4e8b\u4ef6\u3002<\/li>\n\n\n\n<li>\u8fd8\u9700\u8981\u4f20\u5165\u4e24\u4e2abool\u503c\uff0c\u5206\u522b\u8868\u793a\u9700\u8981\u4f7f\u80fd\u8fd8\u662f\u4f7f\u80fd\u8bfb\u5199\u4e8b\u4ef6\u3002<\/li>\n\n\n\n<li>EnableReadWrite\u51fd\u6570\u5185\u90e8\u4f1a\u8c03\u7528epoll_ctl\u51fd\u6570\u4fee\u6539\u5c06\u8be5\u6587\u4ef6\u63cf\u8ff0\u7b26\u7684\u76d1\u542c\u4e8b\u4ef6\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>class Reactor{\nprivate:\n    int _epfd; \/\/epoll\u6a21\u578b\n    std::unordered_map&lt;int, EventItem&gt; _event_items; \/\/\u5efa\u7acbsock\u4e0eEventItem\u7ed3\u6784\u7684\u6620\u5c04\npublic:\n    void EnableReadWrite(int sock, bool read, bool write){\n        struct epoll_event ev;\n        ev.data.fd = sock;\n        ev.events = (read ? EPOLLIN : 0) | (write ? EPOLLOUT : 0) | EPOLLET;\n        if (epoll_ctl(_epfd, EPOLL_CTL_MOD, sock, &amp;ev) &lt; 0){ \/\/\u4fee\u6539\u8be5\u6587\u4ef6\u63cf\u8ff0\u7b26\u6240\u9700\u8981\u76d1\u89c6\u7684\u4e8b\u4ef6\n            std::cerr &lt;&lt; \"epoll_ctl mod error, fd: \" &lt;&lt; sock &lt;&lt; std::endl;\n        }\n    }\n};<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u56de\u8c03\u51fd\u6570<\/h3>\n\n\n\n<p>\u4e0b\u9762\u6211\u4eec\u5c31\u53ef\u4ee5\u5b9e\u73b0\u4e00\u4e9b\u56de\u8c03\u51fd\u6570\uff0c\u8fd9\u91cc\u4e3b\u8981\u5b9e\u73b0\u56db\u4e2a\u56de\u8c03\u51fd\u6570\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>accepter\uff1a\u5f53\u8fde\u63a5\u4e8b\u4ef6\u5230\u6765\u65f6\u53ef\u4ee5\u8c03\u7528\u8be5\u56de\u8c03\u51fd\u6570\u83b7\u53d6\u5e95\u5c42\u5efa\u7acb\u597d\u7684\u8fde\u63a5\u3002<\/li>\n\n\n\n<li>recver\uff1a\u5f53\u8bfb\u4e8b\u4ef6\u5c31\u7eea\u65f6\u53ef\u4ee5\u8c03\u7528\u8be5\u56de\u8c03\u51fd\u6570\u8bfb\u53d6\u5ba2\u6237\u7aef\u53d1\u6765\u7684\u6570\u636e\u5e76\u8fdb\u884c\u5904\u7406\u3002<\/li>\n\n\n\n<li>sender\uff1a\u5f53\u5199\u4e8b\u4ef6\u5c31\u7eea\u65f6\u53ef\u4ee5\u8c03\u7528\u8be5\u56de\u8c03\u51fd\u6570\u5411\u5ba2\u6237\u7aef\u53d1\u9001\u54cd\u5e94\u6570\u636e\u3002<\/li>\n\n\n\n<li>errorer\uff1a\u5f53\u5f02\u5e38\u4e8b\u4ef6\u5c31\u7eea\u65f6\u53ef\u4ee5\u8c03\u7528\u8be5\u51fd\u6570\u5c06\u5bf9\u5e94\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u8fdb\u884c\u5173\u95ed\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u5f53\u6211\u4eec\u4e3a\u67d0\u4e2a\u6587\u4ef6\u63cf\u8ff0\u7b26\u521b\u5efaEventItem\u7ed3\u6784\u65f6\uff0c\u5c31\u53ef\u4ee5\u8c03\u7528EventItem\u7c7b\u63d0\u4f9b\u7684ManageCallbacks\u51fd\u6570\uff0c\u5c06\u8fd9\u4e9b\u56de\u8c03\u51fd\u6570\u5230EventItem\u7ed3\u6784\u5f53\u4e2d\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6211\u4eec\u4f1a\u5c06\u76d1\u542c\u5957\u63a5\u5b57\u5bf9\u5e94\u7684EventItem\u7ed3\u6784\u5f53\u4e2d\u7684recv_handler\u8bbe\u7f6e\u4e3aaccepter\uff0c\u56e0\u4e3a\u76d1\u542c\u5957\u63a5\u5b57\u7684\u8bfb\u4e8b\u4ef6\u5c31\u7eea\u5c31\u610f\u5473\u7740\u8fde\u63a5\u4e8b\u4ef6\u5c31\u7eea\u4e86\uff0c\u800c\u76d1\u542c\u5957\u63a5\u5b57\u4e00\u822c\u53ea\u5173\u5fc3\u8bfb\u4e8b\u4ef6\uff0c\u56e0\u6b64\u76d1\u542c\u5957\u63a5\u5b57\u5bf9\u5e94\u7684send_handler\u548cerror_handler\u53ef\u4ee5\u8bbe\u7f6e\u4e3anullptr\u3002<\/li>\n\n\n\n<li>\u5f53Dispatcher\u76d1\u6d4b\u5230\u76d1\u542c\u5957\u63a5\u5b57\u7684\u8bfb\u4e8b\u4ef6\u5c31\u7eea\u65f6\uff0c\u4f1a\u8c03\u7528\u76d1\u542c\u5957\u63a5\u5b57\u5bf9\u5e94\u7684EventItem\u7ed3\u6784\u5f53\u4e2d\u7684recv_handler\u56de\u8c03\uff0c\u6b64\u65f6\u5c31\u4f1a\u8c03\u7528accepter\u56de\u8c03\u83b7\u53d6\u5e95\u5c42\u5efa\u7acb\u597d\u7684\u8fde\u63a5\u3002<\/li>\n\n\n\n<li>\u800c\u5bf9\u4e8e\u4e0e\u5ba2\u6237\u7aef\u5efa\u7acb\u8fde\u63a5\u7684\u5957\u63a5\u5b57\uff0c\u6211\u4eec\u4f1a\u5c06\u5176\u5bf9\u5e94\u7684EventItem\u7ed3\u6784\u5f53\u4e2d\u7684recv_handler\u3001send_handler\u548cerror_handler\u5206\u522b\u8bbe\u7f6e\u4e3a\u8fd9\u91cc\u7684recver\u3001sender\u548cerror\u3002<\/li>\n\n\n\n<li>\u5f53Dispatcher\u76d1\u6d4b\u5230\u8fd9\u4e9b\u5957\u63a5\u5b57\u7684\u4e8b\u4ef6\u5c31\u7eea\u65f6\uff0c\u5c31\u4f1a\u8c03\u7528\u5176\u5bf9\u5e94\u7684EventItem\u7ed3\u6784\u5f53\u4e2d\u5bf9\u5e94\u7684\u56de\u8c03\u51fd\u6570\uff0c\u4e5f\u5c31\u662f\u8fd9\u91cc\u7684recver\u3001sender\u548cerror\u3002<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">accepter\u56de\u8c03<\/h4>\n\n\n\n<p>accepter\u56de\u8c03\u7528\u4e8e\u5904\u7406\u8fde\u63a5\u4e8b\u4ef6\uff0c\u5176\u5de5\u4f5c\u6d41\u7a0b\u5982\u4e0b\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u8c03\u7528accept\u51fd\u6570\u83b7\u53d6\u5e95\u5c42\u5efa\u7acb\u597d\u7684\u8fde\u63a5\u3002<\/li>\n\n\n\n<li>\u5c06\u83b7\u53d6\u5230\u7684\u5957\u63a5\u5b57\u8bbe\u7f6e\u4e3a\u975e\u963b\u585e\uff0c\u5e76\u4e3a\u5176\u521b\u5efaEventItem\u7ed3\u6784\uff0c\u586b\u5145EventItem\u7ed3\u6784\u5f53\u4e2d\u7684\u5404\u4e2a\u5b57\u6bb5\uff0c\u5e76\u6ce8\u518c\u8be5\u5957\u63a5\u5b57\u76f8\u5173\u7684\u56de\u8c03\u65b9\u6cd5\u3002<\/li>\n\n\n\n<li>\u5c06\u8be5\u5957\u63a5\u5b57\u53ca\u5176\u5bf9\u5e94\u9700\u8981\u5173\u5fc3\u7684\u4e8b\u4ef6\u6ce8\u518c\u5230Dispatcher\u5f53\u4e2d\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u4e0b\u4e00\u6b21Dispatcher\u5728\u8fdb\u884c\u4e8b\u4ef6\u6d3e\u53d1\u65f6\u5c31\u4f1a\u5e2e\u6211\u4eec\u5173\u6ce8\u8be5\u5957\u63a5\u5b57\u5bf9\u5e94\u7684\u4e8b\u4ef6\uff0c\u5f53\u4e8b\u4ef6\u5c31\u7eea\u65f6\u5c31\u4f1a\u6267\u884c\u8be5\u5957\u63a5\u5b57\u5bf9\u5e94\u7684EventItem\u7ed3\u6784\u4e2d\u5bf9\u5e94\u7684\u56de\u8c03\u65b9\u6cd5\u3002<\/p>\n\n\n\n<p>\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>int accepter(EventItem* item)\n{\n    while (true){\n        struct sockaddr_in peer;\n        memset(&amp;peer, 0, sizeof(peer));\n        socklen_t len = sizeof(peer);\n        int sock = accept(item-&gt;_sock, (struct sockaddr*)&amp;peer, &amp;len);\n        if (sock &lt; 0){\n            if (errno == EAGAIN || errno == EWOULDBLOCK){ \/\/\u5e76\u6ca1\u6709\u8bfb\u53d6\u51fa\u9519\uff0c\u53ea\u662f\u5e95\u5c42\u6ca1\u6709\u8fde\u63a5\u4e86\n                return 0;\n            }\n            else if (errno == EINTR){ \/\/\u8bfb\u53d6\u7684\u8fc7\u7a0b\u88ab\u4fe1\u53f7\u4e2d\u65ad\u4e86\n                continue;\n            }\n            else{ \/\/\u83b7\u53d6\u8fde\u63a5\u5931\u8d25\n                std::cerr &lt;&lt; \"accept error\" &lt;&lt; std::endl;\n                return -1;\n            }\n        }\n        SetNonBlock(sock); \/\/\u5c06\u8be5\u5957\u63a5\u5b57\u8bbe\u7f6e\u4e3a\u975e\u963b\u585e\n        \/\/\u6784\u5efaEventItem\u7ed3\u6784\n        EventItem sock_item;\n        sock_item._sock = sock;\n        sock_item._R = item-&gt;_R;\n        sock_item.ManageCallbacks(recver, sender, errorer); \/\/\u6ce8\u518c\u56de\u8c03\u65b9\u6cd5\n\n        Reactor* R = item-&gt;_R;\n        R-&gt;AddEvent(sock, EPOLLIN | EPOLLET, sock_item); \/\/\u5c06\u8be5\u5957\u63a5\u5b57\u53ca\u5176\u5bf9\u5e94\u7684\u4e8b\u4ef6\u6ce8\u518c\u5230Dispatcher\u4e2d\n    }\n    return 0;\n}<\/code><\/pre>\n\n\n\n<p>\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u56e0\u4e3a\u8fd9\u91cc\u5b9e\u73b0\u7684ET\u6a21\u5f0f\u4e0b\u7684epoll\u670d\u52a1\u5668\uff0c\u56e0\u6b64\u5728\u83b7\u53d6\u5e95\u5c42\u8fde\u63a5\u65f6\u9700\u8981\u5faa\u73af\u8c03\u7528accept\u51fd\u6570\u8fdb\u884c\u8bfb\u53d6\uff0c\u5e76\u4e14\u76d1\u542c\u5957\u63a5\u5b57\u5fc5\u987b\u8bbe\u7f6e\u4e3a\u975e\u963b\u585e\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u56e0\u4e3aET\u6a21\u5f0f\u4e0b\u53ea\u6709\u5f53\u5e95\u5c42\u5efa\u7acb\u7684\u8fde\u63a5\u4ece\u65e0\u5230\u6709\u6216\u662f\u4ece\u6709\u5230\u591a\u65f6\u624d\u4f1a\u901a\u77e5\u4e0a\u5c42\uff0c\u5982\u679c\u6ca1\u6709\u4e00\u6b21\u6027\u5c06\u5e95\u5c42\u5efa\u7acb\u597d\u7684\u8fde\u63a5\u5168\u90e8\u83b7\u53d6\uff0c\u5e76\u4e14\u6b64\u540e\u518d\u4e5f\u6ca1\u6709\u5efa\u7acb\u597d\u7684\u8fde\u63a5\uff0c\u90a3\u4e48\u5e95\u5c42\u6ca1\u6709\u8bfb\u53d6\u5b8c\u7684\u8fde\u63a5\u5c31\u76f8\u5f53\u4e8e\u4e22\u5931\u4e86\uff0c\u6240\u4ee5\u9700\u8981\u5faa\u73af\u591a\u6b21\u8c03\u7528accept\u51fd\u6570\u83b7\u53d6\u5e95\u5c42\u5efa\u7acb\u597d\u7684\u8fde\u63a5\u3002<\/li>\n\n\n\n<li>\u5faa\u73af\u8c03\u7528accept\u51fd\u6570\u4e5f\u5c31\u610f\u5473\u7740\uff0c\u5f53\u5e95\u5c42\u8fde\u63a5\u5168\u90e8\u88ab\u83b7\u53d6\u540e\u518d\u8c03\u7528accept\u51fd\u6570\uff0c\u6b64\u65f6\u5c31\u4f1a\u56e0\u4e3a\u5e95\u5c42\u5df2\u7ecf\u6ca1\u6709\u8fde\u63a5\u4e86\u800c\u88ab\u963b\u585e\u4f4f\uff0c\u56e0\u6b64\u9700\u8981\u5c06\u76d1\u542c\u5957\u63a5\u5b57\u8bbe\u7f6e\u4e3a\u975e\u963b\u585e\uff0c\u8fd9\u6837\u5f53\u5e95\u5c42\u6ca1\u6709\u8fde\u63a5\u65f6accept\u5c31\u4f1a\u8fd4\u56de\uff0c\u800c\u4e0d\u4f1a\u88ab\u963b\u585e\u4f4f\u3002<\/li>\n<\/ul>\n\n\n\n<p>accept\u83b7\u53d6\u5230\u7684\u65b0\u7684\u5957\u63a5\u5b57\u4e5f\u9700\u8981\u8bbe\u7f6e\u4e3a\u975e\u963b\u585e\uff0c\u5c31\u662f\u4e3a\u4e86\u907f\u514d\u5c06\u6765\u5faa\u73af\u8c03\u7528recv\u3001send\u7b49\u51fd\u6570\u65f6\u88ab\u963b\u585e\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u8bbe\u7f6e\u6587\u4ef6\u63cf\u8ff0\u7b26\u4e3a\u975e\u963b\u585e<\/p>\n<\/blockquote>\n\n\n\n<p>\u8bbe\u7f6e\u6587\u4ef6\u63cf\u8ff0\u7b26\u4e3a\u975e\u963b\u585e\u65f6\uff0c\u9700\u8981\u5148\u8c03\u7528fcntl\u51fd\u6570\u83b7\u53d6\u8be5\u6587\u4ef6\u63cf\u8ff0\u7b26\u5bf9\u5e94\u7684\u6587\u4ef6\u72b6\u6001\u6807\u8bb0\uff0c\u7136\u540e\u5728\u8be5\u6587\u4ef6\u72b6\u6001\u6807\u8bb0\u7684\u57fa\u7840\u4e0a\u6dfb\u52a0\u975e\u963b\u585e\u6807\u8bb0<code>O_NONBLOCK<\/code>\uff0c\u6700\u540e\u8c03\u7528fcntl\u51fd\u6570\u5bf9\u8be5\u6587\u4ef6\u63cf\u8ff0\u7b26\u7684\u72b6\u6001\u6807\u8bb0\u8fdb\u884c\u8bbe\u7f6e\u5373\u53ef\u3002<\/p>\n\n\n\n<p>\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/\u8bbe\u7f6e\u6587\u4ef6\u63cf\u8ff0\u7b26\u4e3a\u975e\u963b\u585e\nbool SetNonBlock(int sock)\n{\n    int fl = fcntl(sock, F_GETFL);\n    if (fl &lt; 0){\n        std::cerr &lt;&lt; \"fcntl error\" &lt;&lt; std::endl;\n        return false;\n    }\n    fcntl(sock, F_SETFL, fl | O_NONBLOCK);\n    return true;\n}<\/code><\/pre>\n\n\n\n<p>\u76d1\u542c\u5957\u63a5\u5b57\u8bbe\u7f6e\u4e3a\u975e\u963b\u585e\u540e\uff0c\u5f53\u5e95\u5c42\u8fde\u63a5\u4e0d\u5c31\u7eea\u65f6\uff0caccept\u51fd\u6570\u4f1a\u4ee5\u51fa\u9519\u7684\u5f62\u5f0f\u8fd4\u56de\uff0c\u56e0\u6b64\u5f53\u8c03\u7528accept\u51fd\u6570\u7684\u8fd4\u56de\u503c\u5c0f\u4e8e0\u65f6\uff0c\u9700\u8981\u7ee7\u7eed\u5224\u65ad\u9519\u8bef\u7801\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5982\u679c\u9519\u8bef\u7801\u4e3a<code>EAGAIN<\/code>\u6216<code>EWOULDBLOCK<\/code>\uff0c\u8bf4\u660e\u672c\u6b21\u51fa\u9519\u8fd4\u56de\u662f\u56e0\u4e3a\u5e95\u5c42\u5df2\u7ecf\u6ca1\u6709\u53ef\u83b7\u53d6\u7684\u8fde\u63a5\u4e86\uff0c\u6b64\u65f6\u5e95\u5c42\u8fde\u63a5\u5168\u90e8\u83b7\u53d6\u5b8c\u6bd5\uff0c\u8fd9\u65f6\u6211\u4eec\u53ef\u4ee5\u8fd4\u56de0\uff0c\u8868\u793a\u672c\u6b21accepter\u8c03\u7528\u6210\u529f\u3002<\/li>\n\n\n\n<li>\u5982\u679c\u9519\u8bef\u7801\u4e3a<code>EINTR<\/code>\uff0c\u8bf4\u660e\u672c\u6b21\u8c03\u7528accept\u51fd\u6570\u83b7\u53d6\u5e95\u5c42\u8fde\u63a5\u65f6\u88ab\u4fe1\u53f7\u4e2d\u65ad\u4e86\uff0c\u8fd9\u65f6\u8fd8\u5e94\u8be5\u7ee7\u7eed\u8c03\u7528accept\u51fd\u6570\u8fdb\u884c\u83b7\u53d6\u3002<\/li>\n\n\n\n<li>\u9664\u6b64\u4e4b\u5916\uff0c\u624d\u8bf4\u660eaccept\u51fd\u6570\u662f\u771f\u6b63\u8c03\u7528\u5931\u8d25\u4e86\uff0c\u8fd9\u65f6\u6211\u4eec\u53ef\u4ee5\u8fd4\u56de-1\uff0c\u8868\u793a\u672c\u6b21accepter\u8c03\u7528\u5931\u8d25\u3002<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>accept\u3001recv\u548csend\u7b49IO\u7cfb\u7edf\u8c03\u7528\u4e3a\u4ec0\u4e48\u4f1a\u88ab\u4fe1\u53f7\u4e2d\u65ad\uff1f<\/p>\n<\/blockquote>\n\n\n\n<p>IO\u7cfb\u7edf\u8c03\u7528\u51fd\u6570\u51fa\u9519\u8fd4\u56de\u5e76\u4e14\u5c06\u9519\u8bef\u7801\u8bbe\u7f6e\u4e3a<code>EINTR<\/code>\uff0c\u8868\u660e\u672c\u6b21\u5728\u8fdb\u884c\u6570\u636e\u8bfb\u53d6\u6216\u6570\u636e\u5199\u5165\u4e4b\u524d\u88ab\u4fe1\u53f7\u4e2d\u65ad\u4e86\uff0c\u4e5f\u5c31\u662f\u8bf4IO\u7cfb\u7edf\u8c03\u7528\u5728\u9677\u5165\u5185\u6838\uff0c\u4f46\u5e76\u6ca1\u6709\u8fd4\u56de\u7528\u6237\u6001\u7684\u65f6\u5019\u5185\u6838\u8dd1\u53bb\u5904\u7406\u5176\u4ed6\u4fe1\u53f7\u4e86\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5728\u5185\u6838\u6001\u8fd4\u56de\u7528\u6237\u6001\u4e4b\u524d\u4f1a\u68c0\u67e5\u4fe1\u53f7\u7684pending\u4f4d\u56fe\uff0c\u4e5f\u5c31\u662f\u672a\u51b3\u4fe1\u53f7\u96c6\uff0c\u5982\u679cpending\u4f4d\u56fe\u4e2d\u6709\u672a\u5904\u7406\u7684\u4fe1\u53f7\uff0c\u90a3\u4e48\u5185\u6838\u5c31\u4f1a\u5bf9\u8be5\u4fe1\u53f7\u8fdb\u884c\u5904\u7406\u3002<\/li>\n\n\n\n<li>\u4f46IO\u7cfb\u7edf\u8c03\u7528\u51fd\u6570\u5728\u8fdb\u884cIO\u64cd\u4f5c\u4e4b\u524d\u5c31\u88ab\u4fe1\u53f7\u4e2d\u65ad\u4e86\uff0c\u8fd9\u5b9e\u9645\u4e0a\u662f\u4e00\u4e2a\u7279\u4f8b\uff0c\u56e0\u4e3aIO\u8fc7\u7a0b\u5206\u4e3a\u201c\u7b49\u201d\u548c\u201c\u62f7\u8d1d\u201d\u4e24\u4e2a\u6b65\u9aa4\uff0c\u800c\u4e00\u822c\u201c\u7b49\u201d\u7684\u8fc7\u7a0b\u6bd4\u8f83\u6f2b\u957f\uff0c\u800c\u5728\u8fd9\u4e2a\u8fc7\u7a0b\u4e2d\u6211\u4eec\u7684\u6267\u884c\u6d41\u5176\u5b9e\u662f\u5904\u4e8e\u95f2\u7f6e\u7684\u72b6\u6001\u7684\uff0c\u56e0\u6b64\u5728\u201c\u7b49\u201d\u7684\u8fc7\u7a0b\u4e2d\u5982\u679c\u6709\u4fe1\u53f7\u4ea7\u751f\uff0c\u5185\u6838\u5c31\u4f1a\u7acb\u5373\u8fdb\u884c\u4fe1\u53f7\u7684\u5904\u7406\u3002<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u5199\u4e8b\u4ef6\u662f\u6309\u9700\u6253\u5f00\u7684<\/p>\n<\/blockquote>\n\n\n\n<p>\u8fd9\u91cc\u8c03\u7528accept\u83b7\u53d6\u4e0a\u6765\u7684\u5957\u63a5\u5b57\u5728\u6dfb\u52a0\u5230Dispatcher\u4e2d\u65f6\uff0c\u53ea\u6dfb\u52a0\u4e86<code>EOPLLIN<\/code>\u548c<code>EPOLLET<\/code>\u4e8b\u4ef6\uff0c\u4e5f\u5c31\u662f\u8bf4\u53ea\u8ba9epoll\u5e2e\u6211\u4eec\u5173\u5fc3\u8be5\u5957\u63a5\u5b57\u7684\u8bfb\u4e8b\u4ef6\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u8fd9\u91cc\u4e4b\u6240\u4ee5\u6ca1\u6709\u6dfb\u52a0\u5199\u4e8b\u4ef6\uff0c\u662f\u56e0\u4e3a\u5f53\u524d\u6211\u4eec\u5e76\u6ca1\u6709\u8981\u53d1\u9001\u7684\u6570\u636e\uff0c\u56e0\u6b64\u6ca1\u6709\u5fc5\u8981\u8ba9epoll\u5e2e\u6211\u4eec\u5173\u5fc3\u5199\u4e8b\u4ef6\u3002<\/li>\n\n\n\n<li>\u4e00\u822c\u8bfb\u4e8b\u4ef6\u662f\u7ecf\u5e38\u4f1a\u88ab\u8bbe\u7f6e\u7684\uff0c\u800c\u5199\u4e8b\u4ef6\u5219\u662f\u6309\u5e8f\u6253\u5f00\u7684\uff0c\u53ea\u6709\u5f53\u6211\u4eec\u6709\u6570\u636e\u8981\u53d1\u9001\u65f6\u624d\u4f1a\u5c06\u5199\u4e8b\u4ef6\u6253\u5f00\uff0c\u5e76\u4e14\u5728\u6570\u636e\u5168\u90e8\u5199\u5165\u5b8c\u6bd5\u540e\u53c8\u4f1a\u7acb\u5373\u5c06\u5199\u4e8b\u4ef6\u5173\u95ed\u3002<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">recver\u56de\u8c03<\/h4>\n\n\n\n<p>recver\u56de\u8c03\u7528\u4e8e\u5904\u7406\u8bfb\u4e8b\u4ef6\uff0c\u5176\u5de5\u4f5c\u6d41\u7a0b\u5982\u4e0b\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5faa\u73af\u8c03\u7528recv\u51fd\u6570\u8bfb\u53d6\u6570\u636e\uff0c\u5e76\u5c06\u8bfb\u53d6\u5230\u7684\u6570\u636e\u6dfb\u52a0\u5230\u8be5\u5957\u63a5\u5b57\u5bf9\u5e94EventItem\u7ed3\u6784\u7684inbuffer\u5f53\u4e2d\u3002<\/li>\n\n\n\n<li>\u5bf9inbuffer\u5f53\u4e2d\u7684\u6570\u636e\u8fdb\u884c\u5207\u5272\uff0c\u5c06\u5b8c\u6574\u7684\u62a5\u6587\u5207\u5272\u51fa\u6765\uff0c\u5269\u4f59\u7684\u7559\u5728inbuffer\u5f53\u4e2d\u3002<\/li>\n\n\n\n<li>\u5bf9\u5207\u5272\u51fa\u6765\u7684\u5b8c\u6574\u62a5\u6587\u8fdb\u884c\u53cd\u5e8f\u5217\u5316\u3002<\/li>\n\n\n\n<li>\u4e1a\u52a1\u5904\u7406\u3002<\/li>\n\n\n\n<li>\u4e1a\u52a1\u5904\u7406\u540e\u5f62\u6210\u54cd\u5e94\u62a5\u6587\u3002<\/li>\n\n\n\n<li>\u5c06\u54cd\u5e94\u62a5\u5934\u6dfb\u52a0\u5230\u5bf9\u5e94EventItem\u7ed3\u6784\u7684outbuffer\u5f53\u4e2d\uff0c\u5e76\u6253\u5f00\u5199\u4e8b\u4ef6\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u4e0b\u4e00\u6b21Dispatcher\u5728\u8fdb\u884c\u4e8b\u4ef6\u6d3e\u53d1\u65f6\u5c31\u4f1a\u5e2e\u6211\u4eec\u5173\u6ce8\u8be5\u5957\u63a5\u5b57\u7684\u5199\u4e8b\u4ef6\uff0c\u5f53\u5199\u4e8b\u4ef6\u5c31\u7eea\u65f6\u5c31\u4f1a\u6267\u884c\u8be5\u5957\u63a5\u5b57\u5bf9\u5e94\u7684EventItem\u7ed3\u6784\u4e2d\u5199\u56de\u8c03\u65b9\u6cd5\uff0c\u8fdb\u800c\u5c06outbuffer\u4e2d\u7684\u54cd\u5e94\u6570\u636e\u53d1\u9001\u7ed9\u5ba2\u6237\u7aef\u3002<\/p>\n\n\n\n<p>\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>int recver(EventItem* item)\n{\n    if (item-&gt;_sock &lt; 0) \/\/\u8be5\u6587\u4ef6\u63cf\u8ff0\u7b26\u5df2\u7ecf\u88ab\u5173\u95ed\n        return -1;\n    \/\/1\u3001\u6570\u636e\u8bfb\u53d6\n    if (recver_helper(item-&gt;_sock, &amp;(item-&gt;_inbuffer)) &lt; 0){ \/\/\u8bfb\u53d6\u5931\u8d25\n        item-&gt;_error_handler(item);\n        return -1;\n    }\n\n    \/\/2\u3001\u62a5\u6587\u5207\u5272\n    std::vector&lt;std::string&gt; datagrams;\n    StringUtil::Split(item-&gt;_inbuffer, &amp;datagrams, \"X\");\n\n    for (auto s : datagrams){\n        \/\/3\u3001\u53cd\u5e8f\u5217\u5316\n        struct data d;\n        StringUtil::Deserialize(s, &amp;d._x, &amp;d._y, &amp;d._op);\n\n        \/\/4\u3001\u4e1a\u52a1\u5904\u7406\n        int result = 0;\n        switch (d._op)\n        {\n            case '+':\n                result = d._x + d._y;\n                break;\n            case '-':\n                result = d._x - d._y;\n                break;\n            case '*':\n                result = d._x * d._y;\n                break;\n            case '\/':\n                if (d._y == 0){\n                    std::cerr &lt;&lt; \"Error: div zero!\" &lt;&lt; std::endl;\n                    continue; \/\/\u7ee7\u7eed\u5904\u7406\u4e0b\u4e00\u4e2a\u62a5\u6587\n                }\n                else{\n                    result = d._x \/ d._y;\n                }\n                break;\n            case '%':\n                if (d._y == 0){\n                    std::cerr &lt;&lt; \"Error: mod zero!\" &lt;&lt; std::endl;\n                    continue; \/\/\u7ee7\u7eed\u5904\u7406\u4e0b\u4e00\u4e2a\u62a5\u6587\n                }\n                else{\n                    result = d._x % d._y;\n                }\n                break;\n            default:\n                std::cerr &lt;&lt; \"operation error!\" &lt;&lt; std::endl;\n                continue; \/\/\u7ee7\u7eed\u5904\u7406\u4e0b\u4e00\u4e2a\u62a5\u6587\n        }\n\n        \/\/5\u3001\u5f62\u6210\u54cd\u5e94\u62a5\u6587\n        std::string response;\n        response += std::to_string(d._x);\n        response += d._op;\n        response += std::to_string(d._y);\n        response += \"=\";\n        response += std::to_string(result);\n        response += \"X\"; \/\/\u62a5\u6587\u4e0e\u62a5\u6587\u4e4b\u95f4\u7684\u5206\u9694\u7b26\n\n        \/\/6\u3001\u5c06\u54cd\u5e94\u62a5\u6587\u6dfb\u52a0\u5230outbuffer\u4e2d\n        item-&gt;_outbuffer += response;\n        if (!item-&gt;_outbuffer.empty())\n            item-&gt;_R-&gt;EnableReadWrite(item-&gt;_sock, true, true); \/\/\u6253\u5f00\u5199\u4e8b\u4ef6\n    }\n    return 0;\n}<\/code><\/pre>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u4e00\u3001\u6570\u636e\u8bfb\u53d6<\/p>\n<\/blockquote>\n\n\n\n<p>\u6211\u4eec\u53ef\u4ee5\u5c06\u5faa\u73af\u8c03\u7528recv\u51fd\u6570\u8bfb\u53d6\u6570\u636e\u7684\u8fc7\u7a0b\u5c01\u88c5\u6210\u4e00\u4e2arecver_helper\u51fd\u6570\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>recver_helper\u51fd\u6570\u8981\u505a\u7684\u5c31\u662f\u5faa\u73af\u8c03\u7528recv\u51fd\u6570\u5c06\u8bfb\u53d6\u5230\u7684\u6570\u636e\u6dfb\u52a0\u5230inbuffer\u5f53\u4e2d\u3002<\/li>\n\n\n\n<li>\u5f53recv\u51fd\u6570\u7684\u8fd4\u56de\u503c\u5c0f\u4e8e0\u65f6\u540c\u6837\u9700\u8981\u8fdb\u4e00\u6b65\u5224\u65ad\u9519\u8bef\u7801\uff0c\u5982\u679c\u9519\u8bef\u7801\u4e3a<code>EAGAIN<\/code>\u6216<code>EWOULDBLOCK<\/code>\u5219\u8bf4\u660e\u5e95\u5c42\u6570\u636e\u8bfb\u53d6\u5b8c\u6bd5\u4e86\uff0c\u5982\u679c\u9519\u8bef\u7801\u4e3a<code>EINTR<\/code>\u5219\u8bf4\u660e\u8bfb\u53d6\u8fc7\u7a0b\u88ab\u4fe1\u53f7\u4e2d\u65ad\u4e86\uff0c\u6b64\u65f6\u8fd8\u9700\u8981\u7ee7\u7eed\u8c03\u7528recv\u51fd\u6570\u8fdb\u884c\u8bfb\u53d6\uff0c\u5426\u5219\u5c31\u662f\u8bfb\u53d6\u51fa\u9519\u4e86\u3002<\/li>\n\n\n\n<li>\u5f53\u8bfb\u53d6\u51fa\u9519\u65f6\u76f4\u63a5\u8c03\u7528\u8be5\u5957\u63a5\u5b57\u5bf9\u5e94\u7684error_handler\u56de\u8c03\uff0c\u6700\u7ec8\u5c31\u4f1a\u8c03\u7528\u5230\u4e0b\u9762\u5c06\u8981\u5b9e\u73b0\u7684errorer\u56de\u8c03\uff0c\u5728\u6211\u4eec\u4f1a\u5728errorer\u56de\u8c03\u5f53\u4e2d\u5c06\u8be5\u5957\u63a5\u5b57\u8fdb\u884c\u5173\u95ed\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>int recver_helper(int sock, std::string* out)\n{\n    while (true){\n        char buffer&#91;128];\n        ssize_t size = recv(sock, buffer, sizeof(buffer)-1, 0);\n        if (size &lt; 0){\n            if (errno == EAGAIN || errno == EWOULDBLOCK){ \/\/\u6570\u636e\u8bfb\u53d6\u5b8c\u6bd5\n                return 0;\n            }\n            else if (errno == EINTR){ \/\/\u88ab\u4fe1\u53f7\u4e2d\u65ad\uff0c\u7ee7\u7eed\u5c1d\u8bd5\u8bfb\u53d6\n                continue;\n            }\n            else{ \/\/\u8bfb\u53d6\u51fa\u9519\n                return -1;\n            }\n        }\n        else if (size == 0){ \/\/\u5bf9\u7aef\u8fde\u63a5\u5173\u95ed\n            return -1;\n        }\n        \/\/\u8bfb\u53d6\u6210\u529f\n        buffer&#91;size] = '\\0';\n        *out += buffer; \/\/\u5c06\u8bfb\u53d6\u5230\u7684\u6570\u636e\u6dfb\u52a0\u5230\u8be5\u5957\u63a5\u5b57\u5bf9\u5e94EventItem\u7ed3\u6784\u7684inbuffer\u4e2d\n    }\n}<\/code><\/pre>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u4e8c\u3001\u62a5\u6587\u5207\u5272<\/p>\n<\/blockquote>\n\n\n\n<p>\u62a5\u6587\u5207\u5272\u672c\u8d28\u5c31\u662f\u4e3a\u4e86\u9632\u6b62\u7c98\u5305\u95ee\u9898\uff0c\u800c\u7c98\u5305\u95ee\u9898\u5b9e\u9645\u662f\u6d89\u53ca\u5230\u534f\u8bae\u5b9a\u5236\u7684\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u56e0\u4e3a\u6211\u4eec\u9700\u8981\u6839\u636e\u534f\u8bae\u77e5\u9053\u5982\u4f55\u5c06\u5404\u4e2a\u62a5\u6587\u8fdb\u884c\u5206\u79bb\uff0c\u6bd4\u5982UDP\u5206\u79bb\u62a5\u6587\u91c7\u7528\u7684\u5c31\u662f\u5b9a\u957f\u62a5\u5934+\u81ea\u63cf\u8ff0\u5b57\u6bb5\u3002<\/li>\n\n\n\n<li>\u6211\u4eec\u7684\u76ee\u7684\u662f\u6f14\u793a\u6574\u4e2a\u6570\u636e\u5904\u7406\u7684\u8fc7\u7a0b\uff0c\u4e3a\u4e86\u7b80\u5355\u8d77\u89c1\u5c31\u4e0d\u8fdb\u884c\u8fc7\u4e8e\u590d\u6742\u7684\u534f\u8bae\u5b9a\u5236\u4e86\uff0c\u8fd9\u91cc\u6211\u4eec\u5c31\u4ee5\u201cX\u201d\u4f5c\u4e3a\u5404\u4e2a\u62a5\u6587\u4e4b\u95f4\u7684\u5206\u9694\u7b26\uff0c\u6bcf\u4e2a\u62a5\u6587\u7684\u6700\u540e\u90fd\u4f1a\u4ee5\u4e00\u4e2a\u201cX\u201d\u4f5c\u4e3a\u62a5\u6587\u7ed3\u675f\u7684\u6807\u5fd7\u3002<\/li>\n\n\n\n<li>\u56e0\u6b64\u73b0\u5728\u8981\u505a\u7684\u5c31\u662f\u4ee5\u201cX\u201d\u4f5c\u4e3a\u5206\u9694\u7b26\u5bf9inbuffer\u5f53\u4e2d\u7684\u5b57\u7b26\u4e32\u8fdb\u884c\u5207\u5272\uff0c\u8fd9\u91cc\u5c06\u8fd9\u4e2a\u8fc7\u7a0b\u5c01\u88c5\u6210\u4e00\u4e2aSplit\u51fd\u6570\u5e76\u653e\u5230\u4e00\u4e2aStringUtil\u5de5\u5177\u7c7b\u5f53\u4e2d\u3002<\/li>\n\n\n\n<li>Split\u51fd\u6570\u8981\u505a\u7684\u5c31\u662f\u5bf9inbuffer\u5f53\u4e2d\u7684\u5b57\u7b26\u4e32\u8fdb\u884c\u5207\u5272\uff0c\u5c06\u5207\u5272\u51fa\u6765\u7684\u4e00\u4e2a\u4e2a\u62a5\u6587\u653e\u5230vector\u5f53\u4e2d\uff0c\u5bf9\u4e8e\u6700\u540e\u65e0\u6cd5\u5207\u51fa\u5b8c\u6574\u62a5\u6587\u7684\u6570\u636e\u5c31\u7559\u5728inbuffer\u5f53\u4e2d\u5373\u53ef\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>class StringUtil{\npublic:\n    static void Split(std::string&amp; in, std::vector&lt;std::string&gt;* out, std::string sep)\n    {\n        int start = 0;\n        size_t pos = in.find(sep, start);\n        while (pos != std::string::npos){\n            out-&gt;push_back(in.substr(start, pos - start));\n            start = pos + sep.size();\n            pos = in.find(sep, start);\n        }\n        in = in.substr(start);\n    }\n};<\/code><\/pre>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u4e09\u3001\u53cd\u5e8f\u5217\u5316<\/p>\n<\/blockquote>\n\n\n\n<p>\u5728\u6570\u636e\u53d1\u9001\u4e4b\u524d\u9700\u8981\u8fdb\u884c\u5e8f\u5217\u5316encode\uff0c\u63a5\u6536\u5230\u6570\u636e\u4e4b\u540e\u9700\u8981\u5bf9\u6570\u636e\u8fdb\u884c\u53cd\u5e8f\u5217\u5316decode\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5e8f\u5217\u5316\u5c31\u662f\u5c06\u5bf9\u8c61\u7684\u72b6\u6001\u4fe1\u606f\u8f6c\u6362\u4e3a\u53ef\u4ee5\u5b58\u50a8\u6216\u4f20\u8f93\u7684\u5f62\u5f0f\uff08\u5b57\u8282\u5e8f\u5217\uff09\u7684\u8fc7\u7a0b\u3002<\/li>\n\n\n\n<li>\u53cd\u5e8f\u5217\u5316\u5c31\u662f\u628a\u5b57\u8282\u5e8f\u5217\u6062\u590d\u4e3a\u539f\u5bf9\u8c61\u7684\u8fc7\u7a0b\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u5b9e\u9645\u53cd\u5e8f\u5217\u5316\u4e5f\u662f\u4e0e\u534f\u8bae\u5b9a\u5236\u76f8\u5173\u7684\uff0c\u5047\u8bbe\u8fd9\u91cc\u7684epoll\u670d\u52a1\u5668\u5411\u5ba2\u6237\u7aef\u63d0\u4f9b\u7684\u5c31\u662f\u8ba1\u7b97\u670d\u52a1\uff0c\u5ba2\u6237\u7aef\u5411\u670d\u52a1\u5668\u53d1\u6765\u7684\u90fd\u662f\u9700\u8981\u670d\u52a1\u5668\u8ba1\u7b97\u7684\u8ba1\u7b97\u8868\u8fbe\u5f0f\uff0c\u56e0\u6b64\u53ef\u4ee5\u7528\u4e00\u4e2a\u7ed3\u6784\u4f53\u6765\u63cf\u8ff0\u8fd9\u6837\u4e00\u4e2a\u8ba1\u7b97\u8868\u8fbe\u5f0f\uff0c\u7ed3\u6784\u4f53\u5f53\u4e2d\u5305\u542b\u4e24\u4e2a\u64cd\u4f5c\u6570x\u548cy\uff0c\u4ee5\u53ca\u4e00\u4e2a\u64cd\u4f5c\u7b26op\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>struct data{\n    int _x;\n    int _y;\n    char _op;\n};<\/code><\/pre>\n\n\n\n<p>\u6b64\u65f6\u8fd9\u91cc\u6240\u8c13\u7684\u53cd\u5e8f\u5217\u5316\u5c31\u662f\u5c06\u4e00\u4e2a\u8ba1\u7b97\u8868\u8fbe\u5f0f\u8f6c\u6362\u6210\u8fd9\u6837\u4e00\u4e2a\u7ed3\u6784\u4f53\uff0c<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u56e0\u6b64\u73b0\u5728\u8981\u505a\u7684\u5c31\u662f\u5c06\u5f62\u5982\u201c1+2\u201d\u8fd9\u6837\u7684\u8ba1\u7b97\u8868\u8fbe\u5f0f\u8f6c\u6362\u6210\u4e00\u4e2a\u7ed3\u6784\u4f53\uff0c\u8be5\u7ed3\u6784\u4f53\u5f53\u4e2d\u7684x\u6210\u5458\u7684\u503c\u5c31\u662f1\uff0cy\u7684\u503c\u5c31\u662f2\uff0cop\u7684\u503c\u5c31\u662f\u2018+\u2019\uff0c\u8fd9\u91cc\u5c06\u8fd9\u4e2a\u8fc7\u7a0b\u5c01\u88c5\u6210\u4e00\u4e2aDeserialize\u51fd\u6570\u5e76\u653e\u5230StringUtil\u5de5\u5177\u7c7b\u5f53\u4e2d\u3002<\/li>\n\n\n\n<li>Deserialize\u51fd\u6570\u8981\u505a\u7684\u5de5\u4f5c\u5176\u5b9e\u4e5f\u5f88\u7b80\u5355\uff0c\u5c31\u662f\u5728\u4f20\u5165\u7684\u5b57\u7b26\u4e32\u5f53\u4e2d\u627e\u5230\u64cd\u4f5c\u7b26op\uff0c\u6b64\u65f6\u64cd\u4f5c\u7b26\u5de6\u8fb9\u7684\u5c31\u662f\u64cd\u4f5c\u6570x\uff0c\u53f3\u8fb9\u7684\u5c31\u662f\u64cd\u4f5c\u6570y\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>class StringUtil{\npublic:\n    static void Deserialize(std::string&amp; in, int* x, int* y, char* op)\n    {\n        size_t pos = 0;\n        for (pos = 0; pos &lt; in.size(); pos++){\n            if (in&#91;pos] == '+' || in&#91;pos] == '-' || in&#91;pos] == '*' || in&#91;pos] == '\/' || in&#91;pos] == '%')\n                break;\n        }\n        if (pos &lt; in.size()){\n            std::string left = in.substr(0, pos);\n            std::string right = in.substr(pos + 1);\n\n            *x = atoi(left.c_str());\n            *y = atoi(right.c_str());\n            *op = in&#91;pos];\n        }\n        else{\n            *op = -1;\n        }\n    }\n};<\/code><\/pre>\n\n\n\n<p><strong>\u8bf4\u660e\u4e00\u4e0b\uff1a<\/strong> \u5b9e\u9645\u5728\u505a\u9879\u76ee\u65f6\u4e0d\u9700\u8981\u6211\u4eec\u81ea\u5df1\u8fdb\u884c\u5e8f\u5217\u5316\u548c\u53cd\u5e8f\u5217\u5316\uff0c\u6211\u4eec\u4e00\u822c\u4f1a\u76f4\u63a5\u7528JSON\u6216XML\u8fd9\u6837\u7684\u5e8f\u5217\u5316\u53cd\u5e8f\u5217\u5316\u5de5\u5177\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u56db\u3001\u4e1a\u52a1\u5904\u7406<\/p>\n<\/blockquote>\n\n\n\n<p>\u4e1a\u52a1\u5904\u7406\u5c31\u662f\u670d\u52a1\u5668\u62ff\u5230\u5ba2\u6237\u7aef\u53d1\u6765\u7684\u6570\u636e\u540e\uff0c\u5bf9\u6570\u636e\u8fdb\u884c\u6570\u636e\u5206\u6790\uff0c\u6700\u7ec8\u62ff\u5230\u5ba2\u6237\u7aef\u60f3\u8981\u7684\u8d44\u6e90\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6211\u4eec\u8fd9\u91cc\u8981\u505a\u7684\u4e1a\u52a1\u5904\u7406\u975e\u5e38\u7b80\u5355\uff0c\u5c31\u662f\u7528\u53cd\u5e8f\u5217\u5316\u540e\u7684\u6570\u636e\u8fdb\u884c\u6570\u636e\u8ba1\u7b97\uff0c\u6b64\u65f6\u5f97\u5230\u7684\u8ba1\u7b97\u7ed3\u679c\u5c31\u662f\u5ba2\u6237\u7aef\u60f3\u8981\u7684\u3002<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u4e94\u3001\u5f62\u6210\u54cd\u5e94\u62a5\u6587<\/p>\n<\/blockquote>\n\n\n\n<p>\u5728\u4e1a\u52a1\u5904\u7406\u540e\u6211\u4eec\u5df2\u7ecf\u62ff\u5230\u4e86\u5ba2\u6237\u7aef\u60f3\u8981\u7684\u6570\u636e\uff0c\u73b0\u5728\u6211\u4eec\u8981\u505a\u7684\u5c31\u662f\u5f62\u6210\u54cd\u5e94\u62a5\u6587\uff0c\u7531\u4e8e\u6211\u4eec\u8fd9\u91cc\u89c4\u5b9a\u6bcf\u4e2a\u62a5\u6587\u90fd\u4ee5\u201cX\u201d\u4f5c\u4e3a\u62a5\u6587\u7ed3\u675f\u7684\u6807\u5fd7\uff0c\u56e0\u6b64\u5728\u5f62\u6210\u54cd\u5e94\u62a5\u6587\u7684\u65f6\u5019\uff0c\u5c31\u9700\u8981\u5728\u6bcf\u4e00\u4e2a\u8ba1\u7b97\u7ed3\u679c\u540e\u9762\u90fd\u6dfb\u52a0\u4e0a\u4e00\u4e2a\u201cX\u201d\uff0c\u8868\u793a\u8fd9\u662f\u4e4b\u524d\u67d0\u4e00\u4e2a\u8bf7\u6c42\u62a5\u6587\u7684\u54cd\u5e94\u62a5\u6587\uff0c\u56e0\u4e3a\u534f\u8bae\u5236\u5b9a\u540e\u5c31\u9700\u8981\u53cc\u65b9\u9075\u5b88\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u516d\u3001\u5c06\u54cd\u5e94\u62a5\u6587\u6dfb\u52a0\u5230outbuffer\u4e2d<\/p>\n<\/blockquote>\n\n\n\n<p>\u54cd\u5e94\u62a5\u6587\u6784\u5efa\u5b8c\u540e\u9700\u8981\u5c06\u5176\u6dfb\u52a0\u5230\u8be5\u5957\u63a5\u5b57\u5bf9\u5e94\u7684outbuffer\u4e2d\uff0c\u5e76\u6253\u5f00\u8be5\u5957\u63a5\u5b57\u7684\u5199\u4e8b\u4ef6\uff0c\u6b64\u540e\u5f53\u5199\u4e8b\u4ef6\u5c31\u7eea\u65f6\u5c31\u4f1a\u5c06outbuffer\u5f53\u4e2d\u7684\u6570\u636e\u53d1\u9001\u51fa\u53bb\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">sender\u56de\u8c03<\/h4>\n\n\n\n<p>sender\u56de\u8c03\u7528\u4e8e\u5904\u7406\u5199\u4e8b\u4ef6\uff0c\u5176\u5de5\u4f5c\u6d41\u7a0b\u5982\u4e0b\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5faa\u73af\u8c03\u7528send\u51fd\u6570\u53d1\u9001\u6570\u636e\uff0c\u5e76\u5c06\u53d1\u9001\u51fa\u53bb\u7684\u6570\u636e\u4ece\u8be5\u5957\u63a5\u5b57\u5bf9\u5e94EventItem\u7ed3\u6784\u7684outbuffer\u4e2d\u5220\u9664\u3002<\/li>\n\n\n\n<li>\u5982\u679c\u5faa\u73af\u8c03\u7528send\u51fd\u6570\u540e\u8be5\u5957\u63a5\u5b57\u5bf9\u5e94\u7684outbuffer\u5f53\u4e2d\u7684\u6570\u636e\u88ab\u5168\u90e8\u53d1\u9001\uff0c\u6b64\u65f6\u5c31\u9700\u8981\u5c06\u8be5\u5957\u63a5\u5b57\u5bf9\u5e94\u7684\u5199\u4e8b\u4ef6\u5173\u95ed\uff0c\u56e0\u4e3a\u5df2\u7ecf\u6ca1\u6709\u8981\u53d1\u9001\u7684\u6570\u636e\u4e86\uff0c\u5982\u679coutbuffer\u5f53\u4e2d\u7684\u6570\u636e\u8fd8\u6709\u5269\u4f59\uff0c\u90a3\u4e48\u8be5\u5957\u63a5\u5b57\u5bf9\u5e94\u7684\u5199\u4e8b\u4ef6\u5c31\u5e94\u8be5\u7ee7\u7eed\u6253\u5f00\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>int sender(EventItem* item)\n{\n    if (item-&gt;_sock &lt; 0) \/\/\u8be5\u6587\u4ef6\u63cf\u8ff0\u7b26\u5df2\u7ecf\u88ab\u5173\u95ed\n        return -1;\n\n    int ret = sender_helper(item-&gt;_sock, item-&gt;_outbuffer);\n    if (ret == 0){ \/\/\u5168\u90e8\u53d1\u9001\u6210\u529f\uff0c\u4e0d\u518d\u5173\u5fc3\u5199\u4e8b\u4ef6\n        item-&gt;_R-&gt;EnableReadWrite(item-&gt;_sock, true, false);\n    }\n    else if (ret == 1){ \/\/\u6ca1\u6709\u53d1\u9001\u5b8c\u6bd5\uff0c\u8fd8\u9700\u8981\u7ee7\u7eed\u5173\u5fc3\u5199\u4e8b\u4ef6\n        item-&gt;_R-&gt;EnableReadWrite(item-&gt;_sock, true, true);\n    }\n    else{ \/\/\u5199\u5165\u51fa\u9519\n        item-&gt;_error_handler(item);\n    }\n    return 0;\n}<\/code><\/pre>\n\n\n\n<p>\u6211\u4eec\u53ef\u4ee5\u5c06\u5faa\u73af\u8c03\u7528send\u51fd\u6570\u53d1\u9001\u6570\u636e\u7684\u8fc7\u7a0b\u5c01\u88c5\u6210\u4e00\u4e2asender_helper\u51fd\u6570\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>sender_helper\u51fd\u6570\u8981\u505a\u7684\u5c31\u662f\u5faa\u73af\u8c03\u7528send\u51fd\u6570\u5c06outbuffer\u4e2d\u7684\u6570\u636e\u53d1\u9001\u51fa\u53bb\u3002<\/li>\n\n\n\n<li>\u5f53send\u51fd\u6570\u7684\u8fd4\u56de\u503c\u5c0f\u4e8e0\u65f6\u4e5f\u9700\u8981\u8fdb\u4e00\u6b65\u5224\u65ad\u9519\u8bef\u7801\uff0c\u5982\u679c\u9519\u8bef\u7801\u4e3a<code>EAGAIN<\/code>\u6216<code>EWOULDBLOCK<\/code>\u5219\u8bf4\u660e\u5e95\u5c42TCP\u53d1\u9001\u7f13\u51b2\u533a\u5df2\u7ecf\u88ab\u5199\u6ee1\u4e86\uff0c\u8fd9\u65f6\u9700\u8981\u5c06\u5df2\u7ecf\u53d1\u9001\u7684\u6570\u636e\u4eceoutbuffer\u4e2d\u79fb\u9664\u3002<\/li>\n\n\n\n<li>\u5982\u679c\u9519\u8bef\u7801\u4e3a<code>EINTR<\/code>\u5219\u8bf4\u660e\u53d1\u9001\u8fc7\u7a0b\u88ab\u4fe1\u53f7\u4e2d\u65ad\u4e86\uff0c\u6b64\u65f6\u8fd8\u9700\u8981\u7ee7\u7eed\u8c03\u7528send\u51fd\u6570\u8fdb\u884c\u53d1\u9001\uff0c\u5426\u5219\u5c31\u662f\u53d1\u9001\u51fa\u9519\u4e86\u3002<\/li>\n\n\n\n<li>\u5f53\u53d1\u9001\u51fa\u9519\u65f6\u4e5f\u76f4\u63a5\u8c03\u7528\u8be5\u5957\u63a5\u5b57\u5bf9\u5e94\u7684error_handler\u56de\u8c03\uff0c\u6700\u7ec8\u5c31\u4f1a\u8c03\u7528\u5230\u4e0b\u9762\u5c06\u8981\u5b9e\u73b0\u7684errorer\u56de\u8c03\uff0c\u5728\u6211\u4eec\u4f1a\u5728errorer\u56de\u8c03\u5f53\u4e2d\u5c06\u8be5\u5957\u63a5\u5b57\u8fdb\u884c\u5173\u95ed\u3002<\/li>\n\n\n\n<li>\u5982\u679c\u6700\u7ec8outbuffer\u5f53\u4e2d\u7684\u6570\u636e\u5168\u90e8\u53d1\u9001\u6210\u529f\uff0c\u5219\u5c06outbuffer\u6e05\u7a7a\u5373\u53ef\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>int sender_helper(int sock, std::string&amp; in)\n{\n    size_t total = 0; \/\/\u7d2f\u52a0\u5df2\u7ecf\u53d1\u9001\u7684\u5b57\u8282\u6570\n    while (true){\n        ssize_t size = send(sock, in.c_str() + total, in.size() - total, 0);\n        if (size &lt; 0){\n            if (errno == EAGAIN || errno == EWOULDBLOCK){ \/\/\u5e95\u5c42\u53d1\u9001\u7f13\u51b2\u533a\u5df2\u7ecf\u6ca1\u6709\u7a7a\u95f4\u4e86\n                in.erase(0, total); \/\/\u5c06\u5df2\u7ecf\u53d1\u9001\u7684\u6570\u636e\u79fb\u51faoutbuffer\n                return 1; \/\/\u7f13\u51b2\u533a\u5199\u6ee1\uff0c\u6ca1\u5199\u5b8c\n            }\n            else if (errno == EINTR){ \/\/\u88ab\u4fe1\u53f7\u4e2d\u65ad\uff0c\u7ee7\u7eed\u5c1d\u8bd5\u5199\u5165\n                continue;\n            }\n            else{ \/\/\u5199\u5165\u51fa\u9519\n                return -1;\n            }\n        }\n        total += size;\n        if (total &gt;= in.size()){\n            in.clear(); \/\/\u6e05\u7a7aoutbuffer\n            return 0; \/\/\u5168\u90e8\u5199\u5165\u5b8c\u6bd5\n        }\n    }\n}<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">errorer\u56de\u8c03<\/h4>\n\n\n\n<p>errorer\u56de\u8c03\u7528\u4e8e\u5904\u7406\u5f02\u5e38\u4e8b\u4ef6\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5bf9\u4e8e\u5f02\u5e38\u4e8b\u4ef6\u5c31\u7eea\u7684\u5957\u63a5\u5b57\u6211\u4eec\u8fd9\u91cc\u4e0d\u505a\u5176\u4ed6\u8fc7\u591a\u7684\u5904\u7406\uff0c\u7b80\u5355\u7684\u8c03\u7528close\u51fd\u6570\u5c06\u8be5\u5957\u63a5\u5b57\u5173\u95ed\u5373\u53ef\u3002<\/li>\n\n\n\n<li>\u4f46\u662f\u5728\u5173\u95ed\u8be5\u5957\u63a5\u5b57\u4e4b\u524d\uff0c\u9700\u8981\u5148\u8c03\u7528DelEvent\u51fd\u6570\u5c06\u8be5\u5957\u63a5\u5b57\u4eceepoll\u6a21\u578b\u4e2d\u5220\u9664\uff0c\u5e76\u53d6\u6d88\u8be5\u5957\u63a5\u5b57\u4e0e\u5176\u5bf9\u5e94\u7684EventItem\u7ed3\u6784\u7684\u6620\u5c04\u5173\u7cfb\u3002<\/li>\n\n\n\n<li>\u7531\u4e8e\u5728Dispatcher\u5f53\u4e2d\u662f\u5148\u5904\u7406\u7684\u5f02\u5e38\u4e8b\u4ef6\uff0c\u4e3a\u4e86\u907f\u514d\u8be5\u5957\u63a5\u5b57\u88ab\u5173\u95ed\u540e\u7ee7\u7eed\u8fdb\u884c\u8bfb\u5199\u64cd\u4f5c\uff0c\u7136\u540e\u56e0\u4e3a\u8bfb\u5199\u64cd\u4f5c\u5931\u8d25\u518d\u6b21\u8c03\u7528errorer\u56de\u8c03\u91cd\u590d\u5173\u95ed\u8be5\u6587\u4ef6\u63cf\u8ff0\u7b26\uff0c\u56e0\u6b64\u5728\u5173\u95ed\u8be5\u5957\u63a5\u5b57\u540e\u5c06\u5176EventItem\u5f53\u4e2d\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u503c\u8bbe\u7f6e\u4e3a-1\u3002<\/li>\n\n\n\n<li>\u5728\u8c03\u7528recver\u548csender\u56de\u8c03\u6267\u884c\u8bfb\u5199\u64cd\u4f5c\u4e4b\u524d\uff0c\u90fd\u4f1a\u5224\u65ad\u8be5EventItem\u7ed3\u6784\u5f53\u4e2d\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u503c\u662f\u5426\u6709\u6548\uff0c\u5982\u679c\u65e0\u6548\u5219\u4e0d\u4f1a\u8fdb\u884c\u540e\u7eed\u64cd\u4f5c\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>int errorer(EventItem* item)\n{\n    item-&gt;_R-&gt;DelEvent(item-&gt;_sock); \/\/\u5c06\u8be5\u6587\u4ef6\u63cf\u8ff0\u7b26\u4eceepoll\u6a21\u578b\u4e2d\u5220\u9664\uff0c\u5e76\u53d6\u6d88\u8be5\u6587\u4ef6\u63cf\u8ff0\u7b26\u4e0e\u5176EventItem\u7ed3\u6784\u7684\u6620\u5c04\u5173\u7cfb\n    close(item-&gt;_sock); \/\/\u5173\u95ed\u8be5\u6587\u4ef6\u63cf\u8ff0\u7b26\n\n    item-&gt;_sock = -1; \/\/\u9632\u6b62\u5173\u95ed\u540e\u7ee7\u7eed\u6267\u884c\u8bfb\u5199\u56de\u8c03\n    return 0;\n}<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u5957\u63a5\u5b57\u76f8\u5173<\/h3>\n\n\n\n<p>\u8fd9\u91cc\u53ef\u4ee5\u7f16\u5199\u4e00\u4e2aSocket\u7c7b\uff0c\u5bf9\u5957\u63a5\u5b57\u76f8\u5173\u7684\u63a5\u53e3\u8fdb\u884c\u4e00\u5b9a\u7a0b\u5ea6\u7684\u5c01\u88c5\uff0c\u4e3a\u4e86\u8ba9\u5916\u90e8\u80fd\u591f\u76f4\u63a5\u8c03\u7528Socket\u7c7b\u5f53\u4e2d\u5c01\u88c5\u7684\u51fd\u6570\uff0c\u4e8e\u662f\u5c06\u8fd9\u4e9b\u51fd\u6570\u5b9a\u4e49\u6210\u4e86\u9759\u6001\u6210\u5458\u51fd\u6570\u3002<\/p>\n\n\n\n<p>\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>class Socket{\npublic:\n    \/\/\u521b\u5efa\u5957\u63a5\u5b57\n    static int SocketCreate()\n    {\n        int sock = socket(AF_INET, SOCK_STREAM, 0);\n        if (sock &lt; 0){\n            std::cerr &lt;&lt; \"socket error\" &lt;&lt; std::endl;\n            exit(2);\n        }\n        \/\/\u8bbe\u7f6e\u7aef\u53e3\u590d\u7528\n        int opt = 1;\n        setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &amp;opt, sizeof(opt));\n        return sock;\n    }\n    \/\/\u7ed1\u5b9a\n    static void SocketBind(int sock, int port)\n    {\n        struct sockaddr_in local;\n        memset(&amp;local, 0, sizeof(local));\n        local.sin_family = AF_INET;\n        local.sin_port = htons(port);\n        local.sin_addr.s_addr = INADDR_ANY;\n\n        socklen_t len = sizeof(local);\n\n        if (bind(sock, (struct sockaddr*)&amp;local, len) &lt; 0){\n            std::cerr &lt;&lt; \"bind error\" &lt;&lt; std::endl;\n            exit(3);\n        }\n    }\n    \/\/\u76d1\u542c\n    static void SocketListen(int sock, int backlog)\n    {\n        if (listen(sock, backlog) &lt; 0){\n            std::cerr &lt;&lt; \"listen error\" &lt;&lt; std::endl;\n            exit(4);\n        }\n    }\n};<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u8fd0\u884cepoll ET\u670d\u52a1\u5668<\/h3>\n\n\n\n<p>\u8fd0\u884c\u6211\u4eec\u7684epoll ET\u670d\u52a1\u5668\u7684\u6b65\u9aa4\u5982\u4e0b\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u9996\u5148\u9700\u8981\u8fdb\u884c\u7684\u5c31\u662f\u5957\u63a5\u5b57\u7684\u521b\u5efa\u3001\u7ed1\u5b9a\u548c\u76d1\u542c\uff0c\u56e0\u4e3a\u662fET\u6a21\u5f0f\u4e0b\u7684epoll\u670d\u52a1\u5668\uff0c\u56e0\u6b64\u76d1\u542c\u5957\u63a5\u5b57\u521b\u5efa\u51fa\u6765\u540e\u9700\u8981\u5c06\u5176\u8bbe\u7f6e\u4e3a\u975e\u963b\u585e\u3002<\/li>\n\n\n\n<li>\u7136\u540e\u5c31\u53ef\u4ee5\u5b9e\u4f8b\u5316\u4e00\u4e2aReactor\u5bf9\u8c61\uff0c\u5e76\u5bf9\u5176\u8fdb\u884c\u521d\u59cb\u5316\uff0c\u4e5f\u5c31\u662f\u521b\u5efaepoll\u6a21\u578b\u3002<\/li>\n\n\n\n<li>\u7d27\u63a5\u7740\u9700\u8981\u4e3a\u76d1\u542c\u5957\u63a5\u5b57\u5b9a\u4e49\u4e00\u4e2aEventItem\u7ed3\u6784\uff0c\u586b\u5145EventItem\u7ed3\u6784\u5f53\u4e2d\u7684\u5404\u4e2a\u5b57\u6bb5\uff0c\u5e76\u5c06accepter\u56de\u8c03\u8bbe\u7f6e\u4e3a\u76d1\u542c\u5957\u63a5\u5b57\u7684\u8bfb\u56de\u8c03\u65b9\u6cd5\u3002<\/li>\n\n\n\n<li>\u7136\u540e\u8c03\u7528AddEvent\u51fd\u6570\u5c06\u76d1\u542c\u5957\u63a5\u5b57\u53ca\u5176\u9700\u8981\u5173\u7cfb\u7684\u4e8b\u4ef6\u6dfb\u52a0\u5230Dispatcher\u5f53\u4e2d\uff0c\u8be5\u8fc7\u7a0b\u5305\u62ec\u5c06\u76d1\u542c\u5957\u63a5\u5b57\u6ce8\u518c\u5230epoll\u6a21\u578b\u4e2d\uff0c\u4ee5\u53ca\u5efa\u7acb\u76d1\u542c\u5957\u63a5\u5b57\u4e0e\u5176\u5bf9\u5e94EventItem\u7ed3\u6784\u7684\u6620\u5c04\u3002<\/li>\n\n\n\n<li>\u6700\u540e\u5c31\u53ef\u4ee5\u5faa\u73af\u8c03\u7528Reactor\u7c7b\u5f53\u4e2d\u7684Dispatcher\u51fd\u6570\u8fdb\u884c\u4e8b\u4ef6\u6d3e\u53d1\u4e86\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>#include \"app_interface.hpp\"\n#include \"reactor.hpp\"\n#include \"socket.hpp\"\n#include \"util.hpp\"\n#include &lt;string&gt;\n\n#define BACK_LOG 5\n\nstatic void Usage(std::string proc)\n{\n    std::cout &lt;&lt; \"Usage: \" &lt;&lt; proc &lt;&lt; \" port\" &lt;&lt; std::endl;\n}\nint main(int argc, char* argv&#91;])\n{\n    if (argc != 2){\n        Usage(argv&#91;0]);\n        exit(1);\n    }\n    int port = atoi(argv&#91;1]);\n\n    \/\/\u670d\u52a1\u5668\u76d1\u542c\u5957\u63a5\u5b57\u7684\u521b\u5efa\u3001\u7ed1\u5b9a\u548c\u76d1\u542c\n    int listen_sock = Socket::SocketCreate();\n    SetNonBlock(listen_sock); \/\/\u5c06\u76d1\u542c\u5957\u63a5\u5b57\u8bbe\u7f6e\u4e3a\u975e\u963b\u585e\n    Socket::SocketBind(listen_sock, port);\n    Socket::SocketListen(listen_sock, BACK_LOG);\n\n    \/\/\u521b\u5efaReactor\uff0c\u5e76\u521d\u59cb\u5316\n    Reactor R;\n    R.InitReactor();\n\n    \/\/\u521b\u5efa\u76d1\u542c\u5957\u63a5\u5b57\u5bf9\u5e94\u7684EventItem\u7ed3\u6784            \n    EventItem item;\n    item._sock = listen_sock;\n    item._R = &amp;R;\n    item.ManageCallbacks(accepter, nullptr, nullptr); \/\/\u76d1\u542c\u5957\u63a5\u5b57\u53ea\u9700\u8981\u5173\u5fc3\u8bfb\u4e8b\u4ef6\n\n    \/\/\u5c06\u76d1\u542c\u5957\u63a5\u5b57\u6258\u7ba1\u7ed9Dispatcher\n    R.AddEvent(listen_sock, EPOLLIN | EPOLLET, item);\n\n    \/\/\u5faa\u73af\u8fdb\u884c\u4e8b\u4ef6\u6d3e\u53d1\n    int timeout = 1000;\n    while (true){\n        R.Dispatcher(timeout);\n    }\n    return 0;\n}<\/code><\/pre>\n\n\n\n<p>\u8fd0\u884c\u670d\u52a1\u5668\u540e\u53ef\u4ee5\u770b\u52303\u53f7\u6587\u4ef6\u63cf\u8ff0\u7b26\u88ab\u6dfb\u52a0\u5230\u4e86epoll\u6a21\u578b\u4e2d\uff0c\u8fd9\u91cc\u76843\u53f7\u6587\u4ef6\u63cf\u8ff0\u7b26\u5176\u5b9e\u5c31\u662f\u76d1\u542c\u5957\u63a5\u5b57\u3002<img decoding=\"async\" src=\"https:\/\/cdn.codergodv.xyz\/95cb3e60c0d7ff90e373a8d0804826e5.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"><\/p>\n\n\n\n<p>\u5f53\u5ba2\u6237\u7aef\u8fde\u63a5\u670d\u52a1\u5668\u540e\uff0c\u5728\u670d\u52a1\u5668\u7aef\u4f1a\u663e\u793a5\u53f7\u6587\u4ef6\u63cf\u8ff0\u7b26\u88ab\u6dfb\u52a0\u5230\u4e86epoll\u6a21\u578b\u5f53\u4e2d\uff0c\u56e0\u4e3a4\u53f7\u6587\u4ef6\u63cf\u8ff0\u7b26\u5df2\u7ecf\u88abepoll\u6a21\u578b\u4f7f\u7528\u4e86\u3002<img decoding=\"async\" src=\"https:\/\/cdn.codergodv.xyz\/eac42319bb2e64dc1dbe287a9b57d8fe.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"><\/p>\n\n\n\n<p>\u6b64\u65f6\u5ba2\u6237\u7aef\u5c31\u53ef\u4ee5\u5411\u670d\u52a1\u5668\u53d1\u9001\u4e00\u4e9b\u7b80\u5355\u8ba1\u7b97\u4efb\u52a1\uff0c\u8fd9\u4e9b\u8ba1\u7b97\u4efb\u52a1\u4e4b\u95f4\u7528\u201cX\u201d\u9694\u5f00\uff0c\u670d\u52a1\u5668\u6536\u5230\u8ba1\u7b97\u8bf7\u6c42\u5e76\u5904\u7406\u540e\u5c31\u4f1a\u5c06\u8ba1\u7b97\u7ed3\u679c\u53d1\u9001\u7ed9\u5ba2\u6237\u7aef\uff0c\u8fd9\u4e9b\u8ba1\u7b97\u7ed3\u679c\u4e4b\u95f4\u4e5f\u662f\u7528\u201cX\u201d\u9694\u5f00\u7684\u3002<img decoding=\"async\" src=\"https:\/\/cdn.codergodv.xyz\/beb564ed58ca09b5839af5aaf1d442a5.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"><\/p>\n\n\n\n<p>\u6b64\u5916\uff0c\u7531\u4e8e\u4f7f\u7528\u4e86\u591a\u8def\u8f6c\u63a5\u6280\u672f\uff0c\u867d\u7136\u5f53\u524d\u7684epoll\u670d\u52a1\u5668\u662f\u4e00\u4e2a\u5355\u8fdb\u7a0b\u7684\u670d\u52a1\u5668\uff0c\u4f46\u5b83\u5374\u53ef\u4ee5\u540c\u65f6\u4e3a\u591a\u4e2a\u5ba2\u6237\u7aef\u63d0\u4f9b\u670d\u52a1\u3002<img decoding=\"async\" src=\"https:\/\/cdn.codergodv.xyz\/dfb920a33e302689c8ed59757d4cddf2.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"><\/p>\n\n\n\n<p>\u5f53\u5ba2\u6237\u7aef\u9000\u51fa\u540e\u670d\u52a1\u5668\u7aef\u4e5f\u4f1a\u5c06\u5bf9\u5e94\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u4eceepoll\u6a21\u578b\u4e2d\u5220\u9664\u3002<img decoding=\"async\" src=\"https:\/\/cdn.codergodv.xyz\/1e4c30776fe8e812b1809dfb35d38870.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u63a5\u5165\u7ebf\u7a0b\u6c60<\/h3>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u5355\u8fdb\u7a0bepoll\u670d\u52a1\u5668\u5b58\u5728\u7684\u95ee\u9898<\/p>\n<\/blockquote>\n\n\n\n<p>\u56e0\u4e3a\u5f53\u524d\u7684epoll\u670d\u52a1\u5668\u7684\u4e1a\u52a1\u5904\u7406\u903b\u8f91\u6bd4\u8f83\u7b80\u5355\uff0c\u6240\u4ee5\u5355\u8fdb\u7a0b\u7684epoll\u670d\u52a1\u5668\u770b\u8d77\u6765\u6ca1\u4ec0\u4e48\u538b\u529b\uff0c\u4f46\u5982\u679c\u670d\u52a1\u5668\u7684\u4e1a\u52a1\u5904\u7406\u903b\u8f91\u6bd4\u8f83\u590d\u6742\uff0c\u90a3\u4e48\u67d0\u4e9b\u5ba2\u6237\u7aef\u53d1\u6765\u7684\u6570\u636e\u8bf7\u6c42\u5c31\u53ef\u80fd\u957f\u65f6\u95f4\u5f97\u4e0d\u5230\u54cd\u5e94\uff0c\u56e0\u4e3a\u8fd9\u65f6epoll\u670d\u52a1\u5668\u9700\u8981\u82b1\u8d39\u5927\u91cf\u65f6\u95f4\u8fdb\u884c\u4e1a\u52a1\u5904\u7406\uff0c\u800c\u5728\u8fd9\u4e2a\u8fc7\u7a0b\u4e2d\u670d\u52a1\u5668\u65e0\u6cd5\u4e3a\u5176\u4ed6\u5ba2\u6237\u7aef\u63d0\u4f9b\u670d\u52a1\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u89e3\u51b3\u601d\u8def<\/p>\n<\/blockquote>\n\n\n\n<p>\u53ef\u4ee5\u5728\u5f53\u524d\u670d\u52a1\u5668\u7684\u57fa\u7840\u4e0a\u63a5\u5165\u7ebf\u7a0b\u6c60\uff0c\u5f53recver\u56de\u8c03\u8bfb\u53d6\u5b8c\u6570\u636e\u5e76\u5b8c\u6210\u62a5\u6587\u7684\u5207\u5272\u548c\u53cd\u5e8f\u5217\u5316\u540e\uff0c\u5c31\u53ef\u4ee5\u5c06\u5176\u6784\u5efa\u6210\u4e00\u4e2a\u4efb\u52a1\u7136\u540e\u653e\u5230\u7ebf\u7a0b\u6c60\u7684\u4efb\u52a1\u961f\u5217\u4e2d\uff0c\u7136\u540e\u670d\u52a1\u5668\u5c31\u53ef\u4ee5\u7ee7\u7eed\u8fdb\u884c\u4e8b\u4ef6\u6d3e\u53d1\uff0c\u800c\u4e0d\u9700\u8981\u5c06\u65f6\u95f4\u8017\u8d39\u5230\u4e1a\u52a1\u5904\u7406\u4e0a\u9762\uff0c\u800c\u653e\u5230\u4efb\u52a1\u961f\u5217\u5f53\u4e2d\u7684\u4efb\u52a1\uff0c\u5219\u7531\u7ebf\u7a0b\u6c60\u5f53\u4e2d\u7684\u82e5\u5e72\u4e2a\u7ebf\u7a0b\u8fdb\u884c\u5904\u7406\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u63a5\u5165\u7ebf\u7a0b\u6c60<\/p>\n<\/blockquote>\n\n\n\n<p>\u5728\u535a\u4e3b\u7684\u53e6\u4e00\u7bc7\u535a\u5ba2\u5f53\u4e2d\u8be6\u7ec6\u4ecb\u7ecd\u5e76\u5b9e\u73b0\u4e86<a href=\"https:\/\/blog.csdn.net\/chenlong_cxy\/article\/details\/122657510\">\u7ebf\u7a0b\u6c60<\/a>\uff0c\u8fd9\u91cc\u76f4\u63a5\u5c06\u7ebf\u7a0b\u6c60\u7684\u4ee3\u7801\u63a5\u5165\u5230\u5f53\u524d\u7684epoll ET\u670d\u52a1\u5668\uff0c\u56e0\u6b64\u4e0b\u9762\u53ea\u4f1a\u8bb2\u89e3\u63a5\u5165\u7ebf\u7a0b\u6c60\u7684\u65b9\u6cd5\uff0c\u5982\u679c\u5bf9\u7ebf\u7a0b\u6c60\u7684\u5b9e\u73b0\u6709\u7591\u95ee\u7684\u53ef\u4ee5\u53bb\u9605\u8bfb\u90a3\u7bc7\u535a\u5ba2\u3002<\/p>\n\n\n\n<p>\u7ebf\u7a0b\u6c60\u7684\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>#pragma once\n\n#include &lt;iostream&gt;\n#include &lt;unistd.h&gt;\n#include &lt;queue&gt;\n#include &lt;pthread.h&gt;\n\n#define NUM 5\n\n \/\/\u7ebf\u7a0b\u6c60\ntemplate&lt;class T&gt;\nclass ThreadPool\n{\npublic:\n    \/\/\u63d0\u4f9b\u4e00\u4e2a\u5168\u5c40\u8bbf\u95ee\u70b9\n    static ThreadPool* GetInstance()\n    {\n        return &amp;_sInst;\n    }\nprivate:\n    bool IsEmpty()\n    {\n        return _task_queue.size() == 0;\n    }\n    void LockQueue()\n    {\n        pthread_mutex_lock(&amp;_mutex);\n    }\n    void UnLockQueue()\n    {\n        pthread_mutex_unlock(&amp;_mutex);\n    }\n    void Wait()\n    {\n        pthread_cond_wait(&amp;_cond, &amp;_mutex);\n    }\n    void WakeUp()\n    {\n        pthread_cond_signal(&amp;_cond);\n    }\npublic:\n    ~ThreadPool()\n    {\n        pthread_mutex_destroy(&amp;_mutex);\n        pthread_cond_destroy(&amp;_cond);\n    }\n    \/\/\u7ebf\u7a0b\u6c60\u4e2d\u7ebf\u7a0b\u7684\u6267\u884c\u4f8b\u7a0b\n    static void* Routine(void* arg)\n    {\n        pthread_detach(pthread_self());\n        ThreadPool* self = (ThreadPool*)arg;\n        \/\/\u4e0d\u65ad\u4ece\u4efb\u52a1\u961f\u5217\u83b7\u53d6\u4efb\u52a1\u8fdb\u884c\u5904\u7406\n        while (true){\n            self-&gt;LockQueue();\n            while (self-&gt;IsEmpty()){\n                self-&gt;Wait();\n            }\n            T task;\n            self-&gt;Pop(task);\n            self-&gt;UnLockQueue();\n\n            task.Run(); \/\/\u5904\u7406\u4efb\u52a1\n        }\n    }\n    void ThreadPoolInit()\n    {\n        pthread_t tid;\n        for (int i = 0; i &lt; _thread_num; i++){\n            pthread_create(&amp;tid, nullptr, Routine, this); \/\/\u6ce8\u610f\u53c2\u6570\u4f20\u5165this\u6307\u9488\n        }\n    }\n    \/\/\u5f80\u4efb\u52a1\u961f\u5217\u585e\u4efb\u52a1\uff08\u4e3b\u7ebf\u7a0b\u8c03\u7528\uff09\n    void Push(const T&amp; task)\n    {\n        LockQueue();\n        _task_queue.push(task);\n        UnLockQueue();\n        WakeUp();\n    }\n    \/\/\u4ece\u4efb\u52a1\u961f\u5217\u83b7\u53d6\u4efb\u52a1\uff08\u7ebf\u7a0b\u6c60\u4e2d\u7684\u7ebf\u7a0b\u8c03\u7528\uff09\n    void Pop(T&amp; task)\n    {\n        task = _task_queue.front();\n        _task_queue.pop();\n    }\nprivate:\n    ThreadPool(int num = NUM) \/\/\u6784\u9020\u51fd\u6570\u79c1\u6709\n        : _thread_num(num)\n    {\n        pthread_mutex_init(&amp;_mutex, nullptr);\n        pthread_cond_init(&amp;_cond, nullptr);\n    }\n    ThreadPool(const ThreadPool&amp;) = delete; \/\/\u9632\u62f7\u8d1d\n\n    std::queue&lt;T&gt; _task_queue; \/\/\u4efb\u52a1\u961f\u5217\n    int _thread_num; \/\/\u7ebf\u7a0b\u6c60\u4e2d\u7ebf\u7a0b\u7684\u6570\u91cf\n    pthread_mutex_t _mutex;\n    pthread_cond_t _cond;\n\n    static ThreadPool&lt;T&gt; _sInst;\n};\n\ntemplate&lt;class T&gt;\nThreadPool&lt;T&gt; ThreadPool&lt;T&gt;::_sInst;<\/code><\/pre>\n\n\n\n<p>\u5728\u670d\u52a1\u5668\u5f00\u59cb\u8fdb\u884c\u4e8b\u4ef6\u6d3e\u53d1\u4e4b\u524d\u9700\u8981\u5bf9\u7ebf\u7a0b\u6c60\u8fdb\u884c\u521d\u59cb\u5316\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/\u521d\u59cb\u5316\u7ebf\u7a0b\u6c60\nThreadPool&lt;Task&gt;::GetInstance()-&gt;ThreadPoolInit();<\/code><\/pre>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u8bbe\u8ba1\u4efb\u52a1\u7c7b<\/p>\n<\/blockquote>\n\n\n\n<p>\u7ebf\u7a0b\u6c60\u6709\u4e86\u4e4b\u540e\u9700\u8981\u5b9a\u4e49\u51fa\u4e00\u4e2a\u4efb\u52a1\u7c7b\uff0c\u8be5\u4efb\u52a1\u7c7b\u5f53\u4e2d\u9700\u8981\u63d0\u4f9b\u4e00\u4e2aRun\u65b9\u6cd5\uff0c\u8fd9\u4e2aRun\u65b9\u6cd5\u5c31\u662f\u7ebf\u7a0b\u6c60\u4e2d\u7684\u82e5\u5e72\u7ebf\u7a0b\u6c60\u4ece\u4efb\u52a1\u961f\u5217\u5f53\u4e2d\u62ff\u5230\u4efb\u52a1\u540e\u4f1a\u6267\u884c\u7684\u65b9\u6cd5\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5728\u4efb\u52a1\u7c7b\u4e2d\u5305\u542b\u4e24\u4e2a\u6210\u5458\u53d8\u91cf\uff0c\u6210\u5458\u53d8\u91cfd\u5c31\u662f\u53cd\u5e8f\u5217\u5316\u540e\u7528\u4e8e\u8fdb\u884c\u4e1a\u52a1\u5904\u7406\u7684\u6570\u636e\uff0c\u6210\u5458\u53d8\u91cfitem\u5c31\u662f\u8be5\u5957\u63a5\u5b57\u7684EventItem\u7ed3\u6784\uff0c\u56e0\u4e3a\u6570\u636e\u5904\u7406\u5b8c\u540e\u9700\u8981\u5c06\u5f62\u6210\u7684\u54cd\u5e94\u62a5\u6587\u6dfb\u52a0\u5230\u8be5\u5957\u63a5\u5b57\u5bf9\u5e94outbuffer\u5f53\u4e2d\u3002<\/li>\n\n\n\n<li>Run\u65b9\u6cd5\u4e2d\u5904\u7406\u6570\u636e\u7684\u903b\u8f91\u4e0e\u4e4b\u524d\u7684\u4e00\u6837\uff0c\u53ea\u662f\u73b0\u5728\u5c06\u90a3\u90e8\u5206\u4ee3\u7801\u653e\u5230\u4e86Run\u65b9\u6cd5\u4e2d\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>#pragma once\n\n#include &lt;iostream&gt;\n#include \"reactor.hpp\"\n#include \"comm.hpp\"\n\n\/\/\u4efb\u52a1\u7c7b\nclass Task\n{\nprivate:\n    struct data _d;\n    EventItem* _item;\npublic:\n    Task(struct data d, EventItem* item)\n        : _d(d), _item(item)\n    {}\n    Task() \/\/\u63d0\u4f9b\u9ed8\u8ba4\u6784\u9020\n    {}\n    ~Task()\n    {}\n    \/\/\u5904\u7406\u4efb\u52a1\u7684\u65b9\u6cd5\n    void Run()\n    {\n        \/\/4\u3001\u4e1a\u52a1\u5904\u7406\n        int result = 0;\n        switch (_d._op)\n        {\n        case '+':\n            result = _d._x + _d._y;\n            break;\n        case '-':\n            result = _d._x - _d._y;\n            break;\n        case '*':\n            result = _d._x * _d._y;\n            break;\n        case '\/':\n            if (_d._y == 0){\n                std::cerr &lt;&lt; \"Error: div zero!\" &lt;&lt; std::endl;\n                return;\n            }\n            else{\n                result = _d._x \/ _d._y;\n            }\n            break;\n        case '%':\n            if (_d._y == 0){\n                std::cerr &lt;&lt; \"Error: mod zero!\" &lt;&lt; std::endl;\n                return;\n            }\n            else{\n                result = _d._x % _d._y;\n            }\n            break;\n        default:\n            std::cerr &lt;&lt; \"operation error!\" &lt;&lt; std::endl;\n            return;\n        }\n        std::cout &lt;&lt; \"thread&#91;\" &lt;&lt; pthread_self() &lt;&lt; \"]:\" &lt;&lt; _d._x &lt;&lt; _d._op &lt;&lt; _d._y &lt;&lt; \"=\" &lt;&lt; result &lt;&lt; std::endl;\n\n        \/\/5\u3001\u5f62\u6210\u54cd\u5e94\u62a5\u6587\n        std::string response;\n        response += std::to_string(_d._x);\n        response += _d._op;\n        response += std::to_string(_d._y);\n        response += \"=\";\n        response += std::to_string(result);\n        response += \"X\"; \/\/\u62a5\u6587\u4e0e\u62a5\u6587\u4e4b\u95f4\u7684\u5206\u9694\u7b26\n\n        \/\/6\u3001\u5c06\u54cd\u5e94\u62a5\u6587\u6dfb\u52a0\u5230outbuffer\u4e2d\n        _item-&gt;_outbuffer += response;\n        if (!_item-&gt;_outbuffer.empty())\n            _item-&gt;_R-&gt;EnableReadWrite(_item-&gt;_sock, true, true); \/\/\u6253\u5f00\u5199\u4e8b\u4ef6\n    }\n};<\/code><\/pre>\n\n\n\n<p>\u6b64\u65f6recver\u56de\u8c03\u51fd\u6570\u4e2d\u5728\u8bfb\u53d6\u6570\u636e\u3001\u62a5\u6587\u5207\u5272\u3001\u53cd\u5e8f\u5217\u5316\u540e\u5c31\u53ef\u4ee5\u6784\u5efa\u51fa\u4e00\u4e2a\u4efb\u52a1\u5bf9\u8c61\uff0c\u7136\u540e\u5c06\u8be5\u4efb\u52a1\u653e\u5230\u4efb\u52a1\u961f\u5217\u5f53\u4e2d\u5c31\u884c\u4e86\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>int recver(EventItem* item)\n{\n    if (item-&gt;_sock &lt; 0) \/\/\u8be5\u6587\u4ef6\u63cf\u8ff0\u7b26\u5df2\u7ecf\u88ab\u5173\u95ed\n        return -1;\n\n    \/\/1\u3001\u6570\u636e\u8bfb\u53d6\n    if (recver_helper(item-&gt;_sock, &amp;(item-&gt;_inbuffer)) &lt; 0){ \/\/\u8bfb\u53d6\u5931\u8d25\n        item-&gt;_error_handler(item);\n        return -1;\n    }\n\n    \/\/2\u3001\u62a5\u6587\u5207\u5272\n    std::vector&lt;std::string&gt; datagrams;\n    StringUtil::Split(item-&gt;_inbuffer, &amp;datagrams, \"X\");\n\n    for (auto s : datagrams){\n        \/\/3\u3001\u53cd\u5e8f\u5217\u5316\n        struct data d;\n        StringUtil::Deserialize(s, &amp;d._x, &amp;d._y, &amp;d._op);\n\n        Task t(d, item); \/\/\u6784\u5efa\u4efb\u52a1\n        ThreadPool&lt;Task&gt;::GetInstance()-&gt;Push(t); \/\/\u5c06\u4efb\u52a1push\u5230\u7ebf\u7a0b\u6c60\u7684\u4efb\u52a1\u961f\u5217\u4e2d\n    }\n    return 0;\n}<\/code><\/pre>\n\n\n\n<p>\u81f3\u6b64\u7ebf\u7a0b\u6c60\u4fbf\u63a5\u5165\u5b8c\u6bd5\u4e86\uff0c\u7531\u4e8e\u6211\u4eec\u5728\u4efb\u52a1\u88ab\u5904\u7406\u540e\u5c06\u5904\u7406\u5bf9\u5e94\u4efb\u52a1\u7ebf\u7a0b\u7684ID\u8fdb\u884c\u4e86\u6253\u5370\uff0c\u56e0\u6b64\u73b0\u5728\u5ba2\u6237\u7aef\u5411\u670d\u52a1\u5668\u53d1\u9001\u7684\u8ba1\u7b97\u8bf7\u6c42\u5728\u88ab\u5904\u7406\u540e\uff0c\u53ef\u4ee5\u5728\u670d\u52a1\u5668\u7aef\u770b\u5230\u5904\u7406\u8be5\u4efb\u52a1\u7684\u7ebf\u7a0b\u7684ID\u3002<img decoding=\"async\" src=\"https:\/\/cdn.codergodv.xyz\/588b6ac02c52c31872cf9a42ec06f9f6.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Reactor\u6a21\u5f0f Reactor\u6a21\u5f0f\u7684\u5b9a\u4e49 Reactor\u53cd\u5e94\u5668\u6a21\u5f0f\uff0c\u4e5f\u53eb\u505a\u5206\u53d1\u8005\u6a21\u5f0f\u6216\u901a\u77e5\u8005\u6a21\u5f0f\uff0c\u662f\u4e00\u79cd\u5c06 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6,1],"tags":[40],"class_list":["post-167","post","type-post","status-publish","format-standard","hentry","category-linux","category-learn","tag-reactor"],"_links":{"self":[{"href":"https:\/\/codergodv.xyz\/index.php\/wp-json\/wp\/v2\/posts\/167","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/codergodv.xyz\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/codergodv.xyz\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/codergodv.xyz\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/codergodv.xyz\/index.php\/wp-json\/wp\/v2\/comments?post=167"}],"version-history":[{"count":1,"href":"https:\/\/codergodv.xyz\/index.php\/wp-json\/wp\/v2\/posts\/167\/revisions"}],"predecessor-version":[{"id":168,"href":"https:\/\/codergodv.xyz\/index.php\/wp-json\/wp\/v2\/posts\/167\/revisions\/168"}],"wp:attachment":[{"href":"https:\/\/codergodv.xyz\/index.php\/wp-json\/wp\/v2\/media?parent=167"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/codergodv.xyz\/index.php\/wp-json\/wp\/v2\/categories?post=167"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/codergodv.xyz\/index.php\/wp-json\/wp\/v2\/tags?post=167"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}