{"id":48847,"date":"2025-07-30T13:44:18","date_gmt":"2025-07-30T05:44:18","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/48847.html"},"modified":"2025-07-30T13:44:18","modified_gmt":"2025-07-30T05:44:18","slug":"%e3%80%90%e4%bb%bfmuduo%e5%ba%93%e5%ae%9e%e7%8e%b0%e5%b9%b6%e5%8f%91%e6%9c%8d%e5%8a%a1%e5%99%a8%e3%80%91channel%e6%a8%a1%e5%9d%97","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/48847.html","title":{"rendered":"\u3010\u4effmuduo\u5e93\u5b9e\u73b0\u5e76\u53d1\u670d\u52a1\u5668\u3011Channel\u6a21\u5757"},"content":{"rendered":"<\/p>\n<h4>\u4effmuduo\u5e93\u5b9e\u73b0\u5e76\u53d1\u670d\u52a1\u5668<\/h4>\n<ul>\n<li>1.Channel\u6a21\u5757<\/li>\n<li>2.\u6210\u5458\u53d8\u91cf<\/li>\n<li>3.\u6784\u9020\u51fd\u6570<\/li>\n<li>4.\u9488\u5bf9\u4e8b\u4ef6\u76d1\u63a7\u64cd\u4f5c<\/li>\n<li>\n<ul>\n<li>4.1\u662f\u5426\u76d1\u63a7\u4e86\u8bfb\u4e8b\u4ef6<\/li>\n<li>4.2\u662f\u5426\u76d1\u63a7\u4e86\u5199\u4e8b\u4ef6<\/li>\n<li>4.3\u542f\u52a8\u8bfb\u4e8b\u4ef6\u7684\u76d1\u63a7<\/li>\n<li>4.4\u542f\u52a8\u5199\u4e8b\u4ef6\u7684\u76d1\u63a7<\/li>\n<li>4.5\u5173\u95ed\u8bfb\u4e8b\u4ef6\u7684\u76d1\u63a7<\/li>\n<li>4.6\u5173\u95ed\u5199\u4e8b\u4ef6\u7684\u76d1\u63a7<\/li>\n<li>4.7\u5173\u95ed\u6240\u6709\u4e8b\u4ef6\u76d1\u63a7<\/li>\n<li>4.8\u79fb\u9664\u4e8b\u4ef6\u76d1\u63a7<\/li>\n<\/ul>\n<\/li>\n<li>5.\u9488\u5bf9\u56de\u8c03\u5904\u7406\u64cd\u4f5c<\/li>\n<li>\n<ul>\n<li>5.1\u8bbe\u7f6e\u56de\u8c03\u51fd\u6570<\/li>\n<li>5.2\u5904\u7406\u56de\u8c03\u51fd\u6570<\/li>\n<\/ul>\n<\/li>\n<li>6.\u9488\u5bf9\u63cf\u8ff0\u7b26\u7684\u64cd\u4f5c<\/li>\n<li>7.\u9488\u5bf9\u8981\u76d1\u63a7\u7684\u4e8b\u4ef6\u7684\u64cd\u4f5c<\/li>\n<li>8.\u9488\u5bf9\u771f\u6b63\u5c31\u7eea\u4e8b\u4ef6\u7684\u64cd\u4f5c<\/li>\n<li>9.\u5b8c\u6574\u4ee3\u7801<\/li>\n<\/ul>\n<h2>1.Channel\u6a21\u5757<\/h2>\n<p>Channel\u6a21\u5757\u4e3b\u8981\u662f\u5bf9\u4e00\u4e2a\u63cf\u8ff0\u7b26\u8fdb\u884c\u4e8b\u4ef6\u76d1\u63a7\u7ba1\u7406\u3002 \u6bd4\u5982&#xff1a;\u7ba1\u7406\u8fd9\u4e2a\u63cf\u8ff0\u7b26\u76d1\u63a7\u4e86\u4ec0\u4e48\u4e8b\u4ef6&#xff0c;\u4ee5\u53ca\u4e8b\u4ef6\u5c31\u7eea\u540e\u5982\u4f55\u64cd\u4f5c\u7b49\u3002\u542f\u52a8\u4e8b\u4ef6\u76d1\u63a7&#xff0c;\u5173\u95ed\u4e8b\u4ef6\u76d1\u63a7\u7b49\u3002<\/p>\n<p>\u8bbe\u8ba1\u51fa\u4e86\u4e00\u4e2achannelchannel\u6a21\u5757&#xff0c;\u8fd9\u4e2achannel\u6a21\u5757&#xff0c;\u5b83\u5c31\u662f\u4e13\u95e8\u5bf9\u4e00\u4e2a\u63cf\u8ff0\u7b26\u8fdb\u884c\u76d1\u63a7\u4e8b\u4ef6\u7ba1\u7406 \u4ed6\u7ba1\u7406\u8fd9\u63cf\u8ff0\u7b26\u5f53\u524d&#xff0c;\u5b83\u76d1\u63a7\u4e86\u4ec0\u4e48\u6837\u7684\u4e8b\u4ef6\u3002\u6211\u4eec\u63a5\u4e0b\u6765\u8981\u8fdb\u884c\u76d1\u63a7\u4e8b\u4ef6\u7684\u65f6\u5019&#xff0c;\u53ea\u9700\u8981\u53bb\u5224\u65ad&#xff0c;\u5b83 \u662f\u5426\u5df2\u7ecf\u76d1\u63a7\u4e86\u67d0\u4e2a\u4e8b\u4ef6\u6ca1\u6709\u7684\u8bdd&#xff0c;\u90a3\u6211\u4eec\u518d\u76d1\u63a7\u4e00\u4e0b\u90a3\u4e48\u5df2\u7ecf\u76d1\u63a7\u4e86\u3002\u6211\u4eec\u5c31\u4e0d\u9700\u8981\u518d\u53bb\u76d1\u63a7\u4e86\u3002 \u4ee5\u53ca\u7ba1\u7406\u89e6\u53d1\u4e8b\u4ef6\u540e\u5e94\u8be5\u5e72\u4ec0\u4e48<\/p>\n<p>\u6211\u4eec\u7684channel\u6a21\u5757&#xff0c;\u5b83\u53ea\u662f\u6211\u4eec\u7684\u4e00\u4e2a\u8fde\u63a5\u7ba1\u7406Connection\u91cc\u8fb9\u7684\u4e00\u4e2a\u5b50\u6a21\u5757\u3002 \u4ed6\u53ea\u662f\u4e00\u4e2a\u8fde\u63a5\u7ba1\u7406\u91cc\u8fb9\u7684\u4e00\u4e2a\u4e8b\u4ef6\u7ba1\u7406\u6a21\u5757&#xff0c;\u5f53\u4e8b\u4ef6\u89e6\u53d1\u4e4b\u540e&#xff0c;\u5bf9\u8fde\u63a5\u8981\u8fdb\u884c\u4ec0\u4e48\u6837\u7684\u64cd\u4f5c&#xff1f; \u4e5f\u5c31\u662f\u8bf4&#xff0c;\u8fd9\u4e2aChannel\u91cc\u8fb9\u7684\u4e8b\u4ef6\u5904\u7406\u90fd\u662f\u7531\u6211\u4eecConnection\u8fd9\u4e2a\u8fde\u63a5\u6a21\u5757&#xff0c;\u7ed9\u5b83\u76f4\u63a5\u8bbe\u7f6e\u7684\u3002<\/p>\n<p>\u610f\u4e49&#xff1a;\u5bf9\u4e8e\u63cf\u8ff0\u7b26\u7684\u76d1\u63a7\u4e8b\u4ef6\u5728\u7528\u6237\u6001\u66f4\u5bb9\u6613\u7ef4\u62a4&#xff0c;\u4ee5\u53ca\u89e6\u53d1\u4e8b\u4ef6\u540e\u7684\u64cd\u4f5c\u6d41\u7a0b\u66f4\u52a0\u6e05\u6670\u3002<\/p>\n<h2>2.\u6210\u5458\u53d8\u91cf<\/h2>\n<p><span class=\"token keyword\">private<\/span><span class=\"token operator\">:<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> _fd<span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u4e00\u4e2achannel\u5bf9\u5e94\u4e00\u4e2a\u63cf\u8ff0\u7b26<\/span><br \/>\n    EventLoop <span class=\"token operator\">*<\/span>_loop<span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/channnel\u542f\u52a8\u4e8b\u4ef6\u76d1\u63a7\u9700\u8981\u8c03\u7528loop\u4e2d\u7684poller\u6765\u6dfb\u52a0<\/span><br \/>\n    <span class=\"token keyword\">uint32_t<\/span> _events<span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u5f53\u524d\u9700\u8981\u76d1\u63a7\u7684\u4e8b\u4ef6<\/span><br \/>\n    <span class=\"token keyword\">uint32_t<\/span> _revents<span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u5f53\u524d\u8fde\u63a5\u89e6\u53d1\u7684\u4e8b\u4ef6<\/span><br \/>\n    <span class=\"token keyword\">using<\/span> EventCallback <span class=\"token operator\">&#061;<\/span> std<span class=\"token operator\">::<\/span>function<span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">void<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">&gt;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    EventCallback _read_callback<span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u53ef\u8bfb\u4e8b\u4ef6\u88ab\u89e6\u53d1\u7684\u56de\u8c03\u51fd\u6570<\/span><br \/>\n    EventCallback _write_callback<span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u53ef\u5199\u4e8b\u4ef6\u88ab\u89e6\u53d1\u7684\u56de\u8c03\u51fd\u6570<\/span><br \/>\n    EventCallback _error_callback<span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u9519\u8bef\u4e8b\u4ef6\u88ab\u89e6\u53d1\u7684\u56de\u8c03\u51fd\u6570<\/span><br \/>\n    EventCallback _close_callback<span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u8fde\u63a5\u65ad\u5f00\u4e8b\u4ef6\u88ab\u89e6\u53d1\u7684\u56de\u8c03\u51fd\u6570<\/span><br \/>\n    EventCallback _event_callback<span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u4efb\u610f\u4e8b\u4ef6\u88ab\u89e6\u53d1\u7684\u56de\u8c03\u51fd\u6570<\/span><\/p>\n<p>1.int _fd&#xff1a;\u4e00\u4e2achannel\u7ed1\u5b9a\u4e00\u4e2a\u63cf\u8ff0\u7b26&#xff0c;\u7528\u6765\u7ba1\u7406\u8be5\u63cf\u8ff0\u7b26\u7684\u76d1\u63a7\u4e8b\u4ef6\u3002 2.uint32_t _events&#xff1a;\u8868\u793a\u5f53\u524dchannel\u8981\u76d1\u63a7\u4ec0\u4e48\u6837\u7684\u4e8b\u4ef6&#xff0c;\u8bfb\u4e8b\u4ef6\u8fd8\u662f\u5199\u4e8b\u4ef6&#xff0c;\u8981\u8fdb\u884c\u4e8b\u4ef6\u7ba1\u7406&#xff0c;\u5c31\u9700\u8981\u6709\u4e00\u4e2auint32t\u7c7b\u578b\u7684\u6210\u5458\u4fdd\u5b58\u5f53\u524d\u9700\u8981\u76d1\u63a7\u7684\u4e8b\u4ef6 3.uint32_t _revents&#xff1a;\u8868\u793a\u8be5\u63cf\u8ff0\u7b26\u771f\u6b63\u5c31\u7eea\u7684\u662f\u4ec0\u4e48\u4e8b\u4ef6\u3002 4.EventLoop *loop&#xff1a;channel\u771f\u6b63\u60f3\u8981\u5c06\u4e8b\u4ef6\u6dfb\u52a0\u76d1\u63a7\u9700\u8981\u8c03\u7528loop\u4e2d\u5c01\u88c5poller\u5bf9\u5e94\u7684\u51fd\u6570\u3002 4.callback&#xff1a;\u8bfb\/\u5199\/\u9519\u8bef\/\u4efb\u610f\u4e8b\u4ef6\u5bf9\u5e94\u7684\u56de\u8c03\u5904\u7406\u51fd\u6570\u3002<\/p>\n<h2>3.\u6784\u9020\u51fd\u6570<\/h2>\n<p>\u4e00\u4e2achannel\u5bf9\u8c61\u9700\u8981\u7ed1\u5b9a\u4e00\u4e2a\u63cf\u8ff0\u7b26\u548c\u5bf9\u5e94\u7684loop\u3002\u7528\u6765\u7ba1\u7406\u8be5\u63cf\u8ff0\u7b26\u7684\u4e8b\u4ef6\u76d1\u63a7\u3002 \u6240\u4ee5\u9700\u8981\u4ece\u5916\u754c\u4f20\u5165\u63cf\u8ff0\u7b26\u548cloop\u5bf9\u8c61\u3002<\/p>\n<p><span class=\"token keyword\">public<\/span><span class=\"token operator\">:<\/span><br \/>\n    <span class=\"token function\">Channel<\/span><span class=\"token punctuation\">(<\/span>EventLoop <span class=\"token operator\">*<\/span>loop<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">int<\/span> fd<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">:<\/span> <span class=\"token function\">_fd<\/span><span class=\"token punctuation\">(<\/span>fd<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token function\">_events<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token function\">_revents<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token function\">_loop<\/span><span class=\"token punctuation\">(<\/span>loop<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token punctuation\">}<\/span><\/p>\n<h2>4.\u9488\u5bf9\u4e8b\u4ef6\u76d1\u63a7\u64cd\u4f5c<\/h2>\n<p>\u9488\u5bf9channel\u76d1\u63a7\u4ec0\u4e48\u4e8b\u4ef6\u4ee5\u53ca\u662f\u5426\u9700\u8981\u8fdb\u884c\u4e8b\u4ef6\u76d1\u63a7\u3002<\/p>\n<h3>4.1\u662f\u5426\u76d1\u63a7\u4e86\u8bfb\u4e8b\u4ef6<\/h3>\n<p>\u5224\u65ad\u662f\u5426\u76d1\u63a7\u4e86\u8bfb\u4e8b\u4ef6&#xff0c;\u5c31\u5224\u65ad_event\u662f\u5426\u662fEPOLLIN\u3002<\/p>\n<p>    <span class=\"token comment\">\/\/ \u5f53\u524d\u662f\u5426\u76d1\u63a7\u4e86\u53ef\u8bfb<\/span><br \/>\n    <span class=\"token keyword\">bool<\/span> <span class=\"token function\">ReadAble<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">return<\/span> <span class=\"token punctuation\">(<\/span>_events <span class=\"token operator\">&amp;<\/span> EPOLLIN<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span><\/p>\n<h3>4.2\u662f\u5426\u76d1\u63a7\u4e86\u5199\u4e8b\u4ef6<\/h3>\n<p>\u5224\u65ad\u662f\u5426\u76d1\u63a7\u4e86\u5199\u4e8b\u4ef6&#xff0c;\u5c31\u5224\u65ad_event\u662f\u5426\u662fEPOLLOUT\u3002<\/p>\n<p>  <span class=\"token comment\">\/\/ \u5f53\u524d\u662f\u5426\u76d1\u63a7\u4e86\u53ef\u5199<\/span><br \/>\n    <span class=\"token keyword\">bool<\/span> <span class=\"token function\">WriteAble<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">return<\/span> <span class=\"token punctuation\">(<\/span>_events <span class=\"token operator\">&amp;<\/span> EPOLLOUT<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span><\/p>\n<h3>4.3\u542f\u52a8\u8bfb\u4e8b\u4ef6\u7684\u76d1\u63a7<\/h3>\n<p>\u542f\u52a8\u8be5\u63cf\u8ff0\u7b26\u7684\u8bfb\u4e8b\u4ef6\u76d1\u63a7&#xff0c;\u5c31\u4e24\u4e2a\u6b65\u9aa4&#xff1a; 1.\u5c06\u8981\u76d1\u63a7\u7684event\u4e8b\u4ef6\u8bbe\u7f6e\u4e3a\u8bfb\u4e8b\u4ef6EPOLLIN\u3002 2.\u542f\u52a8\u76d1\u63a7\u3002(\u672c\u8d28\u5c31\u662f\u5728\u66f4\u65b0\u76d1\u63a7) \u6ce8\u610f&#xff1a;\u7b2c\u4e00\u6b65\u53ea\u662f\u5c06\u8981\u76d1\u63a7\u7684\u4e8b\u4ef6\u8bbe\u7f6e\u4e3a\u8bfb\u4e8b\u4ef6&#xff0c;\u5e76\u6ca1\u6709\u771f\u6b63\u7684\u76d1\u63a7\u8bfb\u4e8b\u4ef6&#xff0c;\u800c\u8981\u771f\u6b63\u7684\u76d1\u63a7\u8bfb\u4e8b\u4ef6&#xff0c;\u5c31\u9700\u8981\u4f7f\u7528Poller\u5c06\u8be5channel\u5bf9\u8c61\u6dfb\u52a0\u8fdb\u5185\u6838\u4e2d\u3002\u800cpoller\u5c01\u88c5\u5728loop\u4e2d&#xff0c;\u6240\u4ee5\u53ea\u9700\u8981\u8c03\u7528loop\u4e2d\u5c01\u88c5\u597d\u7684\u63a5\u53e3\u5373\u53ef\u3002<\/p>\n<p>  <span class=\"token comment\">\/\/ \u542f\u52a8\u8bfb\u4e8b\u4ef6\u76d1\u63a7<\/span><br \/>\n    <span class=\"token keyword\">void<\/span> <span class=\"token function\">EnableRead<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        _events <span class=\"token operator\">|&#061;<\/span> EPOLLIN<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">Update<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>\u5728Channel\u524d\u9762\u53ea\u662f\u58f0\u660e\u4e86Eventloop&#xff0c;\u4f46Channel\u4e0d\u77e5\u9053Eventloopr\u7c7b\u91cc\u7684\u6210\u5458\u51fd\u6570&#xff0c;\u5728\u7c7b\u91cc\u65e0\u6cd5\u8c03\u7528Eventloop\u7684\u5bf9\u8c61\u51fd\u6570&#xff0c;\u53ea\u80fd\u653e\u5728\u5916\u9762\u5b9a\u4e49\u3002<\/p>\n<p><span class=\"token keyword\">void<\/span> <span class=\"token class-name\">Channel<\/span><span class=\"token operator\">::<\/span><span class=\"token function\">Update<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> _loop<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">UpdateEvent<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token class-name\">Channel<\/span><span class=\"token operator\">::<\/span><span class=\"token function\">Remove<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> _loop<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">RemoveEvent<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\npoller\u6a21\u5757<br \/>\n <span class=\"token comment\">\/\/ \u76f4\u63a5\u5bf9epoll_ctl\u8fdb\u884c\u64cd\u4f5c<\/span><br \/>\n    <span class=\"token keyword\">void<\/span> <span class=\"token function\">Update<\/span><span class=\"token punctuation\">(<\/span>Channel <span class=\"token operator\">*<\/span>channel<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">int<\/span> op<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">int<\/span> fd <span class=\"token operator\">&#061;<\/span> channel<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">Fd<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">epoll_event<\/span> ev<span class=\"token punctuation\">;<\/span><br \/>\n        ev<span class=\"token punctuation\">.<\/span>data<span class=\"token punctuation\">.<\/span>fd <span class=\"token operator\">&#061;<\/span> fd<span class=\"token punctuation\">;<\/span><br \/>\n        ev<span class=\"token punctuation\">.<\/span>events <span class=\"token operator\">&#061;<\/span> channel<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">Events<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">int<\/span> ret <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">epoll_ctl<\/span><span class=\"token punctuation\">(<\/span>_epfd<span class=\"token punctuation\">,<\/span> op<span class=\"token punctuation\">,<\/span> fd<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>ev<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>ret <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token function\">ERRLog<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;epoll_ctl failed&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token comment\">\/\/ \u5bf9\u4e8e\u4e00\u4e2a\u63cf\u8ff0\u7b26\u6dfb\u52a0\u6216\u4fee\u6539\u4e8b\u4ef6\u76d1\u63a7<\/span><br \/>\n    <span class=\"token keyword\">void<\/span> <span class=\"token function\">UpdateEvent<\/span><span class=\"token punctuation\">(<\/span>Channel <span class=\"token operator\">*<\/span>channel<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u9996\u5148\u5224\u65ad\u8be5\u8fde\u63a5\u662f\u5426\u5df2\u7ecf\u88ab\u8bbe\u7f6e\u76d1\u63a7\u4e86&#xff0c;\u5982\u679c\u6ca1\u6709\u5219\u6dfb\u52a0\u76d1\u63a7&#xff0c;\u5982\u679c\u6709\u5219\u8fdb\u884c\u4fee\u6539<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token function\">HasChannel<\/span><span class=\"token punctuation\">(<\/span>channel<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            _channel<span class=\"token punctuation\">.<\/span><span class=\"token function\">insert<\/span><span class=\"token punctuation\">(<\/span>std<span class=\"token operator\">::<\/span><span class=\"token function\">make_pair<\/span><span class=\"token punctuation\">(<\/span>channel<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">Fd<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> channel<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token comment\">\/\/_channel[channel-&gt;Fd()]&#061;channel;<\/span><br \/>\n            <span class=\"token function\">Update<\/span><span class=\"token punctuation\">(<\/span>channel<span class=\"token punctuation\">,<\/span> EPOLL_CTL_ADD<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token keyword\">else<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token function\">Update<\/span><span class=\"token punctuation\">(<\/span>channel<span class=\"token punctuation\">,<\/span> EPOLL_CTL_MOD<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>UpdateEvent\u4f1a\u6839\u636echannel\u5bf9\u8c61\u662f\u5426\u5728poller\u4e2d&#xff0c;\u5982\u679c\u4e0d\u5728\u5219\u8bf4\u660e\u662f\u7b2c\u4e00\u6b21&#xff0c;\u8981\u6dfb\u52a0\u8fdb\u6765add\u3002 \u5982\u679c\u5728\u5219\u8bf4\u660e\u5df2\u7ecf\u6dfb\u52a0\u8fdb\u6765\u4e86&#xff0c;\u672c\u8d28\u662f\u8981\u5bf9\u8be5\u63cf\u8ff0\u7b26\u7684\u76d1\u63a7\u4e8b\u4ef6\u8fdb\u884c\u4fee\u6539modify\u3002<\/p>\n<h3>4.4\u542f\u52a8\u5199\u4e8b\u4ef6\u7684\u76d1\u63a7<\/h3>\n<p>\u542f\u52a8\u8be5\u63cf\u8ff0\u7b26\u7684\u5199\u4e8b\u4ef6\u76d1\u63a7&#xff0c;\u5c31\u4e24\u4e2a\u6b65\u9aa4&#xff1a; 1.\u5c06\u8981\u76d1\u63a7\u7684event\u4e8b\u4ef6\u8bbe\u7f6e\u4e3a\u5199\u4e8b\u4ef6EPOLLOUT\u3002 2.\u542f\u52a8\u76d1\u63a7\u3002(\u672c\u8d28\u5c31\u662f\u5728\u66f4\u65b0\u76d1\u63a7)<\/p>\n<p> <span class=\"token comment\">\/\/ \u542f\u52a8\u5199\u4e8b\u4ef6\u76d1\u63a7<\/span><br \/>\n    <span class=\"token keyword\">void<\/span> <span class=\"token function\">EnableWrite<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        _events <span class=\"token operator\">|&#061;<\/span> EPOLLOUT<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">Update<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<h3>4.5\u5173\u95ed\u8bfb\u4e8b\u4ef6\u7684\u76d1\u63a7<\/h3>\n<p>\u5173\u95ed\u8be5\u63cf\u8ff0\u7b26\u7684\u8bfb\u4e8b\u4ef6\u76d1\u63a7&#xff0c;\u5c31\u4e24\u4e2a\u6b65\u9aa4&#xff1a; 1.\u5c06\u5bf9\u5e94\u7684\u8bfb\u4e8b\u4ef6\u8bbe\u7f6e\u4e3a\u975e\u8bfb\u4e8b\u4ef6\u3002 2.\u542f\u52a8\u76d1\u63a7\u3002(\u672c\u8d28\u5c31\u662f\u5728\u66f4\u65b0\u76d1\u63a7)<\/p>\n<p> <span class=\"token comment\">\/\/ \u5173\u95ed\u8bfb\u4e8b\u4ef6\u76d1\u63a7<\/span><br \/>\n    <span class=\"token keyword\">void<\/span> <span class=\"token function\">DisableRead<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        _events <span class=\"token operator\">&amp;&#061;<\/span> <span class=\"token operator\">~<\/span>EPOLLIN<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">Update<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<h3>4.6\u5173\u95ed\u5199\u4e8b\u4ef6\u7684\u76d1\u63a7<\/h3>\n<p>\u5173\u95ed\u8be5\u63cf\u8ff0\u7b26\u7684\u5199\u4e8b\u4ef6\u76d1\u63a7&#xff0c;\u5c31\u4e24\u4e2a\u6b65\u9aa4&#xff1a; 1.\u5c06\u5bf9\u5e94\u7684\u5199\u4e8b\u4ef6\u8bbe\u7f6e\u4e3a\u975e\u5199\u4e8b\u4ef6\u3002 2.\u542f\u52a8\u76d1\u63a7\u3002(\u672c\u8d28\u5c31\u662f\u5728\u66f4\u65b0\u76d1\u63a7)<\/p>\n<h3>4.7\u5173\u95ed\u6240\u6709\u4e8b\u4ef6\u76d1\u63a7<\/h3>\n<p>\u5173\u95ed\u6240\u6709\u7684\u4e8b\u4ef6\u76d1\u63a7&#xff0c;\u5c31\u662f\u4ec0\u4e48\u4e8b\u4ef6\u90fd\u4e0d\u76d1\u63a7&#xff0c;\u76f4\u63a5\u8ba9_event&#061;0\u5373\u53ef&#xff0c;\u7136\u540e\u518d\u66f4\u65b0\u76d1\u63a7\u3002<\/p>\n<p><span class=\"token keyword\">void<\/span> <span class=\"token function\">DisableAll<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        _events <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">Update<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<h3>4.8\u79fb\u9664\u4e8b\u4ef6\u76d1\u63a7<\/h3>\n<p>\u79fb\u9664\u4e8b\u4ef6\u76d1\u63a7\u662f\u6307\u5c06\u8be5\u63cf\u8ff0\u7b26\u4ecepoller\u4e2d\u79fb\u9664&#xff0c;\u4e0d\u518d\u5bf9\u5176\u8fdb\u884c\u76d1\u63a7\u3002<\/p>\n<p><span class=\"token keyword\">void<\/span> <span class=\"token class-name\">Channel<\/span><span class=\"token operator\">::<\/span><span class=\"token function\">Remove<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> _loop<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">RemoveEvent<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>poller\u6a21\u5757<br \/>\n<span class=\"token comment\">\/\/ \u5bf9\u4e8e\u4e00\u4e2a\u63cf\u8ff0\u7b26\u79fb\u9664\u4e8b\u4ef6\u76d1\u63a7<\/span><br \/>\n    <span class=\"token keyword\">void<\/span> <span class=\"token function\">RemoveEvent<\/span><span class=\"token punctuation\">(<\/span>Channel <span class=\"token operator\">*<\/span>channel<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">auto<\/span> it <span class=\"token operator\">&#061;<\/span> _channel<span class=\"token punctuation\">.<\/span><span class=\"token function\">find<\/span><span class=\"token punctuation\">(<\/span>channel<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">Fd<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>it <span class=\"token operator\">!&#061;<\/span> _channel<span class=\"token punctuation\">.<\/span><span class=\"token function\">end<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            _channel<span class=\"token punctuation\">.<\/span><span class=\"token function\">erase<\/span><span class=\"token punctuation\">(<\/span>it<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token function\">Update<\/span><span class=\"token punctuation\">(<\/span>channel<span class=\"token punctuation\">,<\/span> EPOLL_CTL_DEL<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<h2>5.\u9488\u5bf9\u56de\u8c03\u5904\u7406\u64cd\u4f5c<\/h2>\n<p>\u9996\u5148\u662f\u8bbe\u7f6e\u5404\u79cd\u4e8b\u4ef6\u7684\u5bf9\u5e94\u7684\u56de\u8c03\u51fd\u6570\u3002<\/p>\n<h3>5.1\u8bbe\u7f6e\u56de\u8c03\u51fd\u6570<\/h3>\n<p><span class=\"token comment\">\/\/\u8bbe\u7f6e\u8bfb\u4e8b\u4ef6\u56de\u8c03\u51fd\u6570<\/span><br \/>\n    <span class=\"token keyword\">void<\/span> <span class=\"token function\">SetReadCallback<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> EventCallback <span class=\"token operator\">&amp;<\/span>cb<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span> _read_callback <span class=\"token operator\">&#061;<\/span> cb<span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token comment\">\/\/\u8bbe\u7f6e\u5199\u4e8b\u4ef6\u56de\u8c03\u51fd\u6570<\/span><br \/>\n    <span class=\"token keyword\">void<\/span> <span class=\"token function\">SetWriteCallback<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> EventCallback <span class=\"token operator\">&amp;<\/span>cb<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span> _write_callback <span class=\"token operator\">&#061;<\/span> cb<span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token comment\">\/\/\u8bbe\u7f6e\u9519\u8bef\u4e8b\u4ef6\u56de\u8c03\u51fd\u6570    <\/span><br \/>\n    <span class=\"token keyword\">void<\/span> <span class=\"token function\">SetErrorCallback<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> EventCallback <span class=\"token operator\">&amp;<\/span>cb<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span> _error_callback <span class=\"token operator\">&#061;<\/span> cb<span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token comment\">\/\/\u8bbe\u7f6e\u5173\u95ed\u4e8b\u4ef6\u56de\u8c03\u51fd\u6570<\/span><br \/>\n    <span class=\"token keyword\">void<\/span> <span class=\"token function\">SetCloseCallback<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> EventCallback <span class=\"token operator\">&amp;<\/span>cb<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span> _close_callback <span class=\"token operator\">&#061;<\/span> cb<span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token comment\">\/\/\u8bbe\u7f6e\u4efb\u610f\u4e8b\u4ef6\u56de\u8c03\u51fd\u6570<\/span><br \/>\n    <span class=\"token keyword\">void<\/span> <span class=\"token function\">SetEventCallback<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> EventCallback <span class=\"token operator\">&amp;<\/span>cb<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span> _event_callback <span class=\"token operator\">&#061;<\/span> cb<span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span><\/p>\n<h3>5.2\u5904\u7406\u56de\u8c03\u51fd\u6570<\/h3>\n<p>\u7136\u540e&#xff0c;\u5f53\u6709\u4e8b\u4ef6\u5c31\u7eea\u4e86&#xff0c;\u5c31\u8981\u6267\u884c\u5bf9\u5e94\u7684\u56de\u8c03\u51fd\u6570\u3002 \u5373\u8bfb\u4e8b\u4ef6\u5c31\u7eea\u4e86&#xff0c;\u5c31\u6267\u884c\u8bfb\u56de\u8c03\u3002 \u5199\u4e8b\u4ef6\u5c31\u7eea\u4e86&#xff0c;\u5c31\u6267\u884c\u5199\u56de\u8c03\u2026<\/p>\n<p>\u8fd9\u4e2a\u51fd\u6570\u662f\u7531\u5916\u754cloop\u6765\u63a7\u5236channel\u6765\u6267\u884c\u7684(loop\u4f1a\u83b7\u53d6\u6240\u6709\u5c31\u7eea\u7684channel\u5bf9\u8c61&#xff0c;\u7136\u540e\u6240\u6709\u5bf9\u8c61\u90fd\u8c03\u7528HandlerEvent&#xff0c;\u6839\u636echannel\u5bf9\u8c61\u4e2d\u771f\u6b63\u5c31\u7eea\u7684\u4e8b\u4ef6revents\u6765\u6267\u884c\u5bf9\u5e94\u7684\u56de\u8c03\u51fd\u6570)&#xff0c;\u5f53\u6709\u4e8b\u4ef6\u5c31\u7eea\u4e86&#xff0c;\u5c31\u53bb\u6267\u884c\u5bf9\u5e94\u7684\u56de\u8c03\u51fd\u6570\u3002\u800c\u5177\u4f53\u600e\u4e48\u6267\u884c\u662f\u7531Channel\u6765\u51b3\u5b9a\u7684\u3002<\/p>\n<p><span class=\"token keyword\">void<\/span> <span class=\"token function\">HandlerEvent<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/\u5f53\u8bfb\u4e8b\u4ef6\u5c31\u7eea&#xff0c;\u5c31\u6267\u884c\u8bfb\u56de\u8c03\u3002\u800c\u5728\u5904\u7406\u8bfb\u56de\u8c03\u4e4b\u524d&#xff0c;\u5148\u6267\u884c\u4e00\u4e0b\u4efb\u610f\u4e8b\u4ef6\u56de\u8c03\u3002<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span>_revents <span class=\"token operator\">&amp;<\/span> EPOLLIN<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">||<\/span> <span class=\"token punctuation\">(<\/span>_revents <span class=\"token operator\">&amp;<\/span> EPOLLRDHUP<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">||<\/span> <span class=\"token punctuation\">(<\/span>_revents <span class=\"token operator\">&amp;<\/span> EPOLLPRI<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n          <span class=\"token comment\">\/*\u8bfb\u56de\u8c03\u5982\u679c\u8bbe\u7f6e&#xff0c; \u5c31\u8c03\u7528*\/<\/span><br \/>\n            <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>_read_callback<span class=\"token punctuation\">)<\/span><br \/>\n                <span class=\"token function\">_read_callback<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n         <span class=\"token comment\">\/*\u4e0d\u7ba1\u4efb\u4f55\u4e8b\u4ef6&#xff0c;\u90fd\u8c03\u7528\u7684\u56de\u8c03\u51fd\u6570*\/<\/span><br \/>\n               <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>_event_callback<span class=\"token punctuation\">)<\/span><br \/>\n                <span class=\"token function\">_event_callback<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token comment\">\/*\u6709\u53ef\u80fd\u4f1a\u91ca\u653e\u8fde\u63a5\u7684\u64cd\u4f5c\u4e8b\u4ef6&#xff0c;\u4e00\u6b21\u53ea\u5904\u7406\u4e00\u4e2a*\/<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>_revents <span class=\"token operator\">&amp;<\/span> EPOLLOUT<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/*\u5982\u679c\u5199\u4e8b\u4ef6\u5c31\u7eea&#xff0c;\u5e76\u4e14\u8bbe\u7f6e\u4e86&#xff0c;\u5c31\u8c03\u7528*\/<\/span><br \/>\n            <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>_write_callback<span class=\"token punctuation\">)<\/span><br \/>\n                <span class=\"token function\">_write_callback<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token comment\">\/*\u4e0d\u7ba1\u4efb\u4f55\u4e8b\u4ef6&#xff0c;\u90fd\u8c03\u7528\u7684\u56de\u8c03\u51fd\u6570*\/<\/span><br \/>\n             <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>_event_callback<span class=\"token punctuation\">)<\/span><br \/>\n                <span class=\"token function\">_event_callback<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token keyword\">else<\/span> <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>_revents <span class=\"token operator\">&amp;<\/span> EPOLLERR<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n             <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>_event_callback<span class=\"token punctuation\">)<\/span><br \/>\n                <span class=\"token function\">_event_callback<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>_error_callback<span class=\"token punctuation\">)<\/span><br \/>\n                <span class=\"token function\">_error_callback<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u4e00\u65e6\u51fa\u9519&#xff0c;\u5c31\u4f1a\u91ca\u653e\u8fde\u63a5&#xff0c;\u56e0\u6b64\u8981\u653e\u5230\u524d\u8fb9\u8c03\u7528\u4efb\u610f\u56de\u8c03&#xff0c;\u4e0d\u7136\u4efb\u610f\u56de\u8c03\u8bbf\u95ee\u8fde\u63a5\u5c31\u4f1a\u62a5\u9519\u3002<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token keyword\">else<\/span> <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>_revents <span class=\"token operator\">&amp;<\/span> EPOLLHUP<span class=\"token punctuation\">)<\/span><span class=\"token comment\">\/\/\u5bf9\u7aef\u5173\u95ed\u8fde\u63a5&#xff0c;\u5c31\u4f1a\u53d1\u9001EPOLLHUP\u4fe1\u606f&#xff0c;\u5c31\u4f1a\u56de\u8c03HandeClose\u51fd\u6570<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n             <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>_event_callback<span class=\"token punctuation\">)<\/span><br \/>\n                 <span class=\"token function\">_event_callback<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>_close_callback<span class=\"token punctuation\">)<\/span><br \/>\n                <span class=\"token function\">_close_callback<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u4f1a\u91ca\u653e\u8fde\u63a5&#xff0c;\u56e0\u6b64\u8981\u653e\u5230\u524d\u8fb9\u8c03\u7528\u4efb\u610f\u56de\u8c03&#xff0c;\u4e0d\u7136\u4efb\u610f\u56de\u8c03\u8bbf\u95ee\u8fde\u63a5\u5c31\u4f1a\u62a5\u9519\u3002<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>\u5c31\u662f\u6709\u53ef\u80fd\u8ba9\u8fde\u63a5\u65ad\u5f00\u7684&#xff0c;\u6709\u53ef\u80fd\u4f1a\u91ca\u653e\u8fde\u63a5\u7684\u64cd\u4f5c\u4e8b\u4ef6\u4e00\u6b21\u5c31\u53ea\u5904\u7406\u4e00\u4e2a\u8fd9\u6837\u7684\u3002 \u53ea\u6709\u8fd9\u6837&#xff0c;\u8fd9\u6b21\u5904\u7406\u4e86\u4e00\u65e6\u628a\u8fde\u63a5\u91ca\u653e\u6389\u4e86&#xff0c;\u6211\u4e5f\u5c31\u89e3\u9664\u76d1\u63a7\u4e86&#xff0c;\u89e3\u9664\u76d1\u63a7\u5c31\u4e0d\u4f1a\u518d\u6b21\u89e6\u53d1\u4ed6\u7684\u5176\u4ed6\u7684\u4e8b\u4ef6\u4e86\u3002<\/p>\n<p>\u4efb\u610f\u4e8b\u4ef6\u56de\u8c03\u4e3b\u8981\u5904\u7406\u7684\u662f\u5237\u65b0\u8fde\u63a5\u7684\u6d3b\u8dc3\u5ea6\u3002 \u4efb\u610f\u4e8b\u4ef6\u56de\u8c03\u51fd\u6570\u8981\u653e\u5728\u8bfb\u5199\u4e8b\u4ef6\u7684\u540e\u9762&#xff0c;\u4f60\u4e0d\u80fd\u653e\u5230\u4e8b\u4ef6\u4e4b\u524d&#xff0c;\u56e0\u4e3a\u4f60\u5237\u65b0\u5b8c\u8fde\u63a5\u6d3b\u8dc3\u5ea6&#xff0c;\u6709\u53ef\u80fd\u5904\u7406\u4e8b\u4ef6\u5b8c\u6bd5\u4e4b\u540e(\u82b1\u8d39\u6bd4\u8f83\u957f\u65f6\u95f4)&#xff0c;\u76f4\u63a5\u5c31\u5df2\u7ecf\u975e\u6d3b\u8dc3\u4e86\u90a3\u8fc7\u6765\u4e4b\u540e&#xff0c;\u76f4\u63a5\u5c31\u7ed9\u4ed6\u91ca\u653e\u6389\u4e86\u90a3\u8fd9\u662f\u4e00\u4ef6\u975e\u5e38\u6076\u5fc3\u7684\u4e8b\u60c5\u3002\u6240\u4ee5\u9700\u8981\u653e\u5728\u8bfb\u5199\u4e8b\u4ef6\u6267\u884c\u5b8c\u4e4b\u540e\u3002<\/p>\n<h2>6.\u9488\u5bf9\u63cf\u8ff0\u7b26\u7684\u64cd\u4f5c<\/h2>\n<p>\u5f53poller\u8981\u76d1\u63a7\u4e00\u8fde\u63a5\u65f6&#xff0c;\u662f\u9700\u8981\u5bf9\u5e94\u8fde\u63a5\u7684\u63cf\u8ff0\u7b26\u7684&#xff0c;\u6240\u6709\u9700\u8981\u5916\u754c\u53ef\u80fd\u9700\u8981Channel\u5bf9\u5e94\u7684fd&#xff0c;\u6240\u4ee5\u5c06fd\u8fd4\u56de\u51fa\u53bb\u3002<\/p>\n<p><span class=\"token keyword\">int<\/span> <span class=\"token function\">Fd<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">return<\/span> _fd<span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span><\/p>\n<h2>7.\u9488\u5bf9\u8981\u76d1\u63a7\u7684\u4e8b\u4ef6\u7684\u64cd\u4f5c<\/h2>\n<p>\u5f53poller\u8981\u76d1\u63a7\u4e00\u8fde\u63a5\u65f6&#xff0c;\u4e0d\u4ec5\u9700\u8981\u8be5\u8fde\u63a5\u7684\u63cf\u8ff0\u7b26&#xff0c;\u8fd8\u9700\u8981\u77e5\u9053\u8be5\u63cf\u8ff0\u7b26\u8981\u76d1\u63a7\u4ec0\u4e48\u4e8b\u4ef6events&#xff0c;\u6240\u4ee5\u5916\u754c\u4e5f\u662f\u9700\u8981\u77e5\u9053channel\u8981\u76d1\u63a7\u4ec0\u4e48\u4e8b\u4ef6\u3002<\/p>\n<p><span class=\"token keyword\">uint32_t<\/span> <span class=\"token function\">Events<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">return<\/span> _events<span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span><span class=\"token comment\">\/\/ \u83b7\u53d6\u60f3\u8981\u76d1\u63a7\u7684\u4e8b\u4ef6<\/span><\/p>\n<h2>8.\u9488\u5bf9\u771f\u6b63\u5c31\u7eea\u4e8b\u4ef6\u7684\u64cd\u4f5c<\/h2>\n<p>\u5f53poller\u5f00\u59cb\u8fdb\u884c\u4e8b\u4ef6\u76d1\u63a7&#xff0c;\u4e00\u65e6\u6709\u4e8b\u4ef6\u5c31\u7eea\u4e86&#xff0c;epoll_wait\u5c31\u4f1a\u8fd4\u56de&#xff0c;\u6240\u6709\u5c31\u7eea\u7684\u5bf9\u8c61\u4fe1\u606f\u5c31\u4f1a\u5b58\u5230struct epoll_event _evs[1024]\u6570\u7ec4\u4e2d&#xff0c;\u800c\u8fd9\u4e2a\u65f6\u5019channel\u5bf9\u8c61\u8fd8\u4e0d\u77e5\u9053\u5b83\u771f\u6b63\u5c31\u7eea\u7684\u662f\u4ec0\u4e48\u4e8b\u4ef6&#xff0c;\u6240\u4ee5\u5c31\u9700\u8981\u4ecestruct epoll_event _evs[1024]\u4e2d\u5c06\u8be5\u63cf\u8ff0\u7b26\u5c31\u7eea\u7684\u4e8b\u4ef6\u8bbe\u7f6e\u5230channel\u5bf9\u8c61\u4e2d&#xff0c;\u8fd9\u6837\u624d\u80fd\u8ba9channel\u5bf9\u8c61\u80fd\u591f\u8c03\u7528HandlerEvent\u5904\u7406\u5c31\u7eea\u4e8b\u4ef6\u3002 \u6240\u4ee5channel\u5bf9\u8c61\u7684\u771f\u6b63\u5c31\u7eea\u4e8b\u4ef6\u662f\u7531\u5916\u754cpoller\u8bbe\u7f6e\u8fdb\u53bb\u7684&#xff0c;\u6240\u4ee5\u9700\u8981\u4e00\u4e2a\u8bbe\u7f6e\u63a5\u53e3\u3002<\/p>\n<p><span class=\"token keyword\">void<\/span> <span class=\"token function\">SetRevents<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">uint32_t<\/span> events<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span> _revents <span class=\"token operator\">&#061;<\/span> events<span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span> <span class=\"token comment\">\/\/ \u8bbe\u7f6e\u5b9e\u9645\u5c31\u7eea\u7684\u4e8b\u4ef6<\/span><\/p>\n<h2>9.\u5b8c\u6574\u4ee3\u7801<\/h2>\n<p><span class=\"token keyword\">class<\/span> <span class=\"token class-name\">EventLoop<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Poller<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Channel<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token keyword\">private<\/span><span class=\"token operator\">:<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> _fd<span class=\"token punctuation\">;<\/span><br \/>\n    EventLoop <span class=\"token operator\">*<\/span>_loop<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">uint32_t<\/span> _events<span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u5f53\u524d\u9700\u8981\u76d1\u63a7\u7684\u4e8b\u4ef6<\/span><br \/>\n    <span class=\"token keyword\">uint32_t<\/span> _revents<span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u5f53\u524d\u8fde\u63a5\u89e6\u53d1\u7684\u4e8b\u4ef6<\/span><br \/>\n    <span class=\"token keyword\">using<\/span> EventCallback <span class=\"token operator\">&#061;<\/span> std<span class=\"token operator\">::<\/span>function<span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">void<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">&gt;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    EventCallback _read_callback<span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u53ef\u8bfb\u4e8b\u4ef6\u88ab\u89e6\u53d1\u7684\u56de\u8c03\u51fd\u6570<\/span><br \/>\n    EventCallback _write_callback<span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u53ef\u5199\u4e8b\u4ef6\u88ab\u89e6\u53d1\u7684\u56de\u8c03\u51fd\u6570<\/span><br \/>\n    EventCallback _error_callback<span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u9519\u8bef\u4e8b\u4ef6\u88ab\u89e6\u53d1\u7684\u56de\u8c03\u51fd\u6570<\/span><br \/>\n    EventCallback _close_callback<span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u8fde\u63a5\u65ad\u5f00\u4e8b\u4ef6\u88ab\u89e6\u53d1\u7684\u56de\u8c03\u51fd\u6570<\/span><br \/>\n    EventCallback _event_callback<span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u4efb\u610f\u4e8b\u4ef6\u88ab\u89e6\u53d1\u7684\u56de\u8c03\u51fd\u6570<\/span><br \/>\n<span class=\"token keyword\">public<\/span><span class=\"token operator\">:<\/span><br \/>\n    <span class=\"token function\">Channel<\/span><span class=\"token punctuation\">(<\/span>EventLoop <span class=\"token operator\">*<\/span>loop<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">int<\/span> fd<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">:<\/span> <span class=\"token function\">_fd<\/span><span class=\"token punctuation\">(<\/span>fd<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token function\">_events<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token function\">_revents<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token function\">_loop<\/span><span class=\"token punctuation\">(<\/span>loop<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> <span class=\"token function\">Fd<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">return<\/span> _fd<span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token keyword\">uint32_t<\/span> <span class=\"token function\">Events<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">return<\/span> _events<span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span>                   <span class=\"token comment\">\/\/ \u83b7\u53d6\u60f3\u8981\u76d1\u63a7\u7684\u4e8b\u4ef6<\/span><br \/>\n    <span class=\"token keyword\">void<\/span> <span class=\"token function\">SetRevents<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">uint32_t<\/span> events<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span> _revents <span class=\"token operator\">&#061;<\/span> events<span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span> <span class=\"token comment\">\/\/ \u8bbe\u7f6e\u5b9e\u9645\u5c31\u7eea\u7684\u4e8b\u4ef6<\/span><br \/>\n    <span class=\"token keyword\">void<\/span> <span class=\"token function\">SetReadCallback<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> EventCallback <span class=\"token operator\">&amp;<\/span>cb<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span> _read_callback <span class=\"token operator\">&#061;<\/span> cb<span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token keyword\">void<\/span> <span class=\"token function\">SetWriteCallback<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> EventCallback <span class=\"token operator\">&amp;<\/span>cb<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span> _write_callback <span class=\"token operator\">&#061;<\/span> cb<span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token keyword\">void<\/span> <span class=\"token function\">SetErrorCallback<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> EventCallback <span class=\"token operator\">&amp;<\/span>cb<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span> _error_callback <span class=\"token operator\">&#061;<\/span> cb<span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token keyword\">void<\/span> <span class=\"token function\">SetCloseCallback<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> EventCallback <span class=\"token operator\">&amp;<\/span>cb<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span> _close_callback <span class=\"token operator\">&#061;<\/span> cb<span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token keyword\">void<\/span> <span class=\"token function\">SetEventCallback<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> EventCallback <span class=\"token operator\">&amp;<\/span>cb<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span> _event_callback <span class=\"token operator\">&#061;<\/span> cb<span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u5f53\u524d\u662f\u5426\u76d1\u63a7\u4e86\u53ef\u8bfb<\/span><br \/>\n    <span class=\"token keyword\">bool<\/span> <span class=\"token function\">ReadAble<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">return<\/span> <span class=\"token punctuation\">(<\/span>_events <span class=\"token operator\">&amp;<\/span> EPOLLIN<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u5f53\u524d\u662f\u5426\u76d1\u63a7\u4e86\u53ef\u5199<\/span><br \/>\n    <span class=\"token keyword\">bool<\/span> <span class=\"token function\">WriteAble<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">return<\/span> <span class=\"token punctuation\">(<\/span>_events <span class=\"token operator\">&amp;<\/span> EPOLLOUT<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u542f\u52a8\u8bfb\u4e8b\u4ef6\u76d1\u63a7<\/span><br \/>\n    <span class=\"token keyword\">void<\/span> <span class=\"token function\">EnableRead<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        _events <span class=\"token operator\">|&#061;<\/span> EPOLLIN<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">Update<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u542f\u52a8\u5199\u4e8b\u4ef6\u76d1\u63a7<\/span><br \/>\n    <span class=\"token keyword\">void<\/span> <span class=\"token function\">EnableWrite<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        _events <span class=\"token operator\">|&#061;<\/span> EPOLLOUT<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">Update<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u5173\u95ed\u8bfb\u4e8b\u4ef6\u76d1\u63a7<\/span><br \/>\n    <span class=\"token keyword\">void<\/span> <span class=\"token function\">DisableRead<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        _events <span class=\"token operator\">&amp;&#061;<\/span> <span class=\"token operator\">~<\/span>EPOLLIN<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">Update<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u5173\u95ed\u5199\u4e8b\u4ef6\u76d1\u63a7<\/span><br \/>\n    <span class=\"token keyword\">void<\/span> <span class=\"token function\">DisableWrite<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        _events <span class=\"token operator\">&amp;&#061;<\/span> <span class=\"token operator\">~<\/span>EPOLLOUT<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">Update<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u5173\u95ed\u6240\u6709\u4e8b\u4ef6\u76d1\u63a7<\/span><br \/>\n    <span class=\"token keyword\">void<\/span> <span class=\"token function\">DisableAll<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        _events <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">Update<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u79fb\u9664\u76d1\u63a7<\/span><br \/>\n    <span class=\"token keyword\">void<\/span> <span class=\"token function\">Remove<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">void<\/span> <span class=\"token function\">Update<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u4e8b\u4ef6\u5904\u7406&#xff0c;\u4e00\u65e6\u8fde\u63a5\u89e6\u53d1\u4e86\u4e8b\u4ef6&#xff0c;\u5c31\u8c03\u7528\u8fd9\u4e2a\u51fd\u6570&#xff0c;\u81ea\u5df1\u89e6\u53d1\u4e86\u4ec0\u4e48\u4e8b\u4ef6\u5982\u4f55\u5904\u7406\u81ea\u5df1\u51b3\u5b9a<\/span><br \/>\n    <span class=\"token keyword\">void<\/span> <span class=\"token function\">HandlerEvent<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span>_revents <span class=\"token operator\">&amp;<\/span> EPOLLIN<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">||<\/span> <span class=\"token punctuation\">(<\/span>_revents <span class=\"token operator\">&amp;<\/span> EPOLLRDHUP<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">||<\/span> <span class=\"token punctuation\">(<\/span>_revents <span class=\"token operator\">&amp;<\/span> EPOLLPRI<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n               <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>_event_callback<span class=\"token punctuation\">)<\/span><br \/>\n                <span class=\"token function\">_event_callback<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token comment\">\/*\u4e0d\u7ba1\u4efb\u4f55\u4e8b\u4ef6&#xff0c;\u90fd\u8c03\u7528\u7684\u56de\u8c03\u51fd\u6570*\/<\/span><br \/>\n            <span class=\"token comment\">\/\/ if (_event_callback)<\/span><br \/>\n            <span class=\"token comment\">\/\/     _event_callback();<\/span><br \/>\n            <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>_read_callback<span class=\"token punctuation\">)<\/span><br \/>\n                <span class=\"token function\">_read_callback<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token comment\">\/*\u6709\u53ef\u80fd\u4f1a\u91ca\u653e\u8fde\u63a5\u7684\u64cd\u4f5c\u4e8b\u4ef6&#xff0c;\u4e00\u6b21\u53ea\u5904\u7406\u4e00\u4e2a*\/<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>_revents <span class=\"token operator\">&amp;<\/span> EPOLLOUT<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token comment\">\/\/ if (_event_callback)<\/span><br \/>\n            <span class=\"token comment\">\/\/     _event_callback();<\/span><br \/>\n            <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>_write_callback<span class=\"token punctuation\">)<\/span><br \/>\n                <span class=\"token function\">_write_callback<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token keyword\">else<\/span> <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>_revents <span class=\"token operator\">&amp;<\/span> EPOLLERR<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token comment\">\/\/ if (_event_callback)<\/span><br \/>\n            <span class=\"token comment\">\/\/     _event_callback();<\/span><br \/>\n            <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>_error_callback<span class=\"token punctuation\">)<\/span><br \/>\n                <span class=\"token function\">_error_callback<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u4e00\u65e6\u51fa\u9519&#xff0c;\u5c31\u4f1a\u91ca\u653e\u8fde\u63a5&#xff0c;\u56e0\u6b64\u8981\u653e\u5230\u524d\u8fb9\u8c03\u7528\u4efb\u610f\u56de\u8c03<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token keyword\">else<\/span> <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>_revents <span class=\"token operator\">&amp;<\/span> EPOLLHUP<span class=\"token punctuation\">)<\/span><span class=\"token comment\">\/\/\u5bf9\u7aef\u5173\u95ed\u8fde\u63a5&#xff0c;\u5c31\u4f1a\u53d1\u9001EPOLLHUP\u4fe1\u606f&#xff0c;\u5c31\u4f1a\u56de\u8c03HandeClose\u51fd\u6570<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token comment\">\/\/ if (_event_callback)<\/span><br \/>\n            <span class=\"token comment\">\/\/     _event_callback();<\/span><br \/>\n            <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>_close_callback<span class=\"token punctuation\">)<\/span><br \/>\n                <span class=\"token function\">_close_callback<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u5728Channel\u524d\u9762\u53ea\u662f\u58f0\u660e\u4e86Eventloop&#xff0c;\u4f46Channel\u4e0d\u77e5\u9053Eventloopr\u7c7b\u91cc\u7684\u6210\u5458\u51fd\u6570&#xff0c;\u5728\u7c7b\u91cc\u65e0\u6cd5\u8c03\u7528Eventloop\u7684\u5bf9\u8c61\u51fd\u6570&#xff0c;\u53ea\u80fd\u653e\u5728\u5916\u9762<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token class-name\">Channel<\/span><span class=\"token operator\">::<\/span><span class=\"token function\">Update<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> _loop<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">UpdateEvent<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token class-name\">Channel<\/span><span class=\"token operator\">::<\/span><span class=\"token function\">Remove<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> _loop<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">RemoveEvent<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb938\u6b21\uff0c\u70b9\u8d5e29\u6b21\uff0c\u6536\u85cf19\u6b21\u3002\u5b9e\u73b0Channel\u6a21\u5757\uff0c\u4e3b\u8981\u662f\u5bf9\u8fde\u63a5\u8fdb\u884c\u4e8b\u4ef6\u7ba1\u7406\uff0c\u4e3b\u8981\u7ba1\u7406\u8fd9\u4e2a\u8fde\u63a5\u76d1\u63a7\u4e86\u4ec0\u4e48\u4e8b\u4ef6\uff0c\u4ee5\u53ca\u4e8b\u4ef6\u5c31\u7eea\u4e4b\u540e\u8be5\u5982\u4f55\u5904\u7406\u7b49\u64cd\u4f5c\u3002<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[99,43,44,185],"topic":[],"class_list":["post-48847","post","type-post","status-publish","format-standard","hentry","category-server","tag-java","tag-43","tag-44","tag-185"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ 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