{"id":29039,"date":"2025-04-20T05:22:01","date_gmt":"2025-04-19T21:22:01","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/29039.html"},"modified":"2025-04-20T05:22:01","modified_gmt":"2025-04-19T21:22:01","slug":"reactor%e6%a8%a1%e5%9e%8b%e9%ab%98%e5%b9%b6%e5%8f%91%e6%9c%8d%e5%8a%a1%e5%99%a8-02_%e7%bc%93%e5%86%b2%e5%8c%ba%e6%a8%a1%e5%9d%97%e4%b8%8e%e5%a5%97%e6%8e%a5%e5%ad%97%e6%a8%a1%e5%9d%97","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/29039.html","title":{"rendered":"Reactor\u6a21\u578b\u9ad8\u5e76\u53d1\u670d\u52a1\u5668\u2014\u201402_\u7f13\u51b2\u533a\u6a21\u5757\u4e0e\u5957\u63a5\u5b57\u6a21\u5757"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250419212154-680413f20bbd0.gif\" alt=\"\u8bf7\u6dfb\u52a0\u56fe\u7247\u63cf\u8ff0\" width=\"1024\" \/><\/p>\n<p>\u2728\u2728\u6b22\u8fce\u6765\u5230T_X_Parallel\u7684\u535a\u5ba2&#xff01;&#xff01; \u2002\u2002\u2002 &#x1f6f0;\ufe0f\u535a\u5ba2\u4e3b\u9875&#xff1a;T_X_Parallel \u2002\u2002\u2002 &#x1f6f0;\ufe0f\u9879\u76ee\u4ee3\u7801\u4ed3\u5e93&#xff1a;Reactor\u6a21\u578b\u9ad8\u5e76\u53d1\u670d\u52a1\u5668\u9879\u76ee\u4ee3\u7801\u4ed3\u5e93&#xff08;\u968f\u535a\u5ba2\u66f4\u65b0&#xff09; \u2002\u2002\u2002 &#x1f6f0;\ufe0f\u4e13\u680f : Reactor\u6a21\u578b\u9ad8\u5e76\u53d1\u670d\u52a1\u5668\u9879\u76ee \u2002\u2002\u2002 &#x1f6f0;\ufe0f\u6b22\u8fce\u5173\u6ce8&#xff1a;&#x1f44d;\u70b9\u8d5e&#x1f64c;\u6536\u85cf\u270d\ufe0f\u7559\u8a00<\/p>\n<\/p>\n<h4>\u6587\u7ae0\u76ee\u5f55<\/h4>\n<ul>\n<li>\n<ul>\n<li>1. \u524d\u8a00<\/li>\n<li>2. \u65e5\u5fd7\u6a21\u5757<\/li>\n<li>3. \u7f13\u51b2\u533a\u6a21\u5757<\/li>\n<li>\n<ul>\n<li>\u8bbe\u8ba1\u601d\u60f3<\/li>\n<li>\u63a5\u53e3\u8bbe\u8ba1<\/li>\n<li>\u529f\u80fd\u5b9e\u73b0<\/li>\n<li>\u6d4b\u8bd5<\/li>\n<\/ul>\n<\/li>\n<li>4. \u5957\u63a5\u5b57\u6a21\u5757<\/li>\n<li>\n<ul>\n<li>\u8bbe\u8ba1\u601d\u60f3<\/li>\n<li>\u63a5\u53e3\u8bbe\u8ba1<\/li>\n<li>\u529f\u80fd\u5b9e\u73b0<\/li>\n<li>\u6d4b\u8bd5<\/li>\n<\/ul>\n<\/li>\n<li>5. \u5b8c\u6574\u4ee3\u7801<\/li>\n<li>\n<ul>\n<li>\u7f13\u51b2\u533a\u6a21\u5757\u4ee3\u7801<\/li>\n<li>\u5957\u63a5\u5b57\u6a21\u5757\u4ee3\u7801<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>\u9879\u76ee\u73af\u5883&#xff1a;vscode\u3001wsl2&#xff08;Ubuntu22.04&#xff09;<\/p>\n<p>\u6280\u672f\u6808&#xff1a;C\/C&#043;&#043;\u3001C&#043;&#043;11\u3001C&#043;&#043;17\u3001STL\u3001HTTP\u3001TCP\u3001HTML<\/p>\n<h3>1. \u524d\u8a00<\/h3>\n<p>\u63a5\u4e0b\u6765\u5f00\u59cb\u9010\u6b65\u5b9e\u73b0\u9879\u76ee\u4e2d\u7684\u591a\u4e2a\u6a21\u5757\u4e86&#xff0c;\u9996\u5148\u5148\u5b9e\u73b0\u7f13\u51b2\u533a\u6a21\u5757\u548c\u5957\u63a5\u5b57\u6a21\u5757&#xff0c;\u4f46\u662f\u5728\u5b9e\u73b0\u8fd9\u4e24\u4e2a\u6a21\u5757\u4e4b\u524d\u5148\u5728\u9879\u76ee\u4e2d\u52a0\u5165\u65e5\u5fd7\u6a21\u5757\u5f88\u91cd\u8981&#xff0c;\u6709\u4e9b\u6253\u5370\u4fe1\u606f\u53ef\u4ee5\u5e2e\u52a9\u8c03\u8bd5\u3002<\/p>\n<p>\u63d0\u9192&#xff1a;\u63a5\u4e0b\u6765\u6240\u6709\u7684\u6a21\u5757\u5b9e\u73b0\u53ef\u80fd\u4f1a\u51fa\u73b0\u5404\u79cd\u5404\u6837\u7684bug&#xff0c;\u535a\u4e3b\u5728\u5b9e\u73b0\u7684\u65f6\u5019\u51e0\u4e4e\u6bcf\u6b21\u90fd\u4f1a\u9047\u5230\u65b0bug&#xff0c;\u90fd\u662f\u4ee3\u7801\u4e2d\u4e00\u4e9b\u4e0d\u8d77\u773c\u7684\u9519\u8bef&#xff0c;\u6240\u4ee5\u5b9e\u73b0\u8fc7\u7a0b\u4e00\u5b9a\u8981\u4ed4\u7ec6&#xff0c;\u5b9e\u73b0\u5b8c\u4e00\u4e2a\u6a21\u5757\u5c31\u8fdb\u884c\u6d4b\u8bd5\u3002\u5f53\u7136&#xff0c;\u535a\u4e3b\u4f1a\u5728\u4e00\u4e9b\u5bb9\u6613\u51fa\u9519\u7684\u5730\u65b9\u63d0\u9192<\/p>\n<p>\u5148\u63d0\u524d\u9884\u544a\u4e00\u4e0b\u540e\u9762\u7684\u6d41\u7a0b\u5427&#xff0c;\u5927\u6982\u7387\u7684\u662f&#xff1a;Buffer\u6a21\u5757&#043;Socket\u6a21\u5757\u2192Channel\u6a21\u5757&#043;Poll\u6a21\u5757&#043;TimerWheel\u6a21\u5757&#043;EventLoop\u6a21\u5757\u2192Connection\u6a21\u5757\u2192LoopThread\u6a21\u5757&#043;Acceptor\u6a21\u5757&#043;TcpServer\u6a21\u5757\u2192HttpServer\u6a21\u5757<\/p>\n<p>\u8fd9\u4e2a\u8fc7\u7a0b\u662f\u535a\u4e3b\u81ea\u5df1\u5148\u5b9e\u73b0\u4e86\u4e00\u904d\u4e4b\u540e\u8ba4\u4e3a\u6700\u5408\u7406\u7684\u4e00\u4e2a\u8fc7\u7a0b&#xff0c;\u5982\u679c\u89c9\u5f97\u535a\u4e3b\u535a\u5ba2\u66f4\u65b0\u6162&#xff0c;\u53ef\u4ee5\u53bb\u535a\u4e3b\u4ee3\u7801\u4ed3\u5e93\u7684\u9879\u76ee\u4ee3\u7801\u8fdb\u884c\u9605\u8bfb&#xff0c;\u4ee3\u7801\u5df2\u7ecf\u66f4\u65b0\u5b8c\u6bd5\u4e86&#xff0c;\u5185\u542b\u6bcf\u4e2a\u9636\u6bb5\u7684\u6d4b\u8bd5\u4ee3\u7801\u548c\u6700\u7ec8\u4ee3\u7801&#xff08;\u6709\u4e9b\u6d4b\u8bd5\u9700\u8981\u901a\u8fc7\u4e00\u4e9b\u5de5\u5177\u53bb\u6d4b\u8bd5&#xff09;\u3002<\/p>\n<p>\u5e9f\u8bdd\u5c11\u8bf4&#xff0c;\u5f00\u59cb\u9879\u76ee\u7684\u7b2c\u4e00\u4e2a\u9636\u6bb5\u5427\u3002<\/p>\n<hr \/>\n<h3>2. \u65e5\u5fd7\u6a21\u5757<\/h3>\n<p>\u8fd9\u4e2a\u65e5\u5fd7\u6a21\u5757\u662f\u4e00\u4e2a\u6210\u719f\u9879\u76ee\u4e2d\u5fc5\u4e0d\u53ef\u5c11\u7684\u6a21\u5757&#xff0c;\u53ef\u4ee5\u65b9\u4fbf\u6253\u5370\u7684\u540c\u65f6\u4e5f\u4fbf\u4e8e\u770b\u5230\u4e00\u4e9b\u5173\u952e\u4fe1\u606f&#xff0c;\u6bd4\u5982\u6253\u5370\u4f4d\u7f6e\u6240\u5904\u7684\u6587\u4ef6\u548c\u884c\u53f7\u4ee5\u53ca\u65e5\u5fd7\u7b49\u7ea7\u7b49&#xff0c;\u5728\u76ee\u524d\u8fd9\u4e2a\u9636\u6bb5\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528\u4e0a\u4e00\u4e2a\u7ad9\u5185\u641c\u7d22\u5f15\u64ce\u9879\u76ee\u4e2d\u7b80\u5355\u5b9e\u73b0\u7684\u65e5\u5fd7\u6a21\u5757&#xff0c;\u4f46\u662f\u8fd9\u91cc\u5b58\u5728\u4e00\u4e2a\u95ee\u9898&#xff0c;\u5c31\u662f\u8fd9\u4e2a\u9879\u76ee\u540e\u9762\u8981\u4f7f\u7528\u591a\u7ebf\u7a0b&#xff0c;\u90a3\u4e48\u591a\u4e2a\u7ebf\u7a0b\u5982\u679c\u540c\u65f6\u6253\u5370\u7684\u8bdd\u53ef\u80fd\u4f1a\u51fa\u73b0\u6253\u5370\u5185\u5bb9\u9519\u4e71\u7684\u60c5\u51b5&#xff0c;\u8fd9\u65f6\u5019\u6709\u4e24\u79cd\u89e3\u51b3\u65b9\u6cd5&#xff0c;\u7b2c\u4e00\u79cd\u5c31\u662f\u52a0\u9501&#xff0c;\u4f46\u662f\u6211\u4eec\u8fd9\u4e2a\u9879\u76ee\u662f\u9ad8\u5e76\u53d1\u9ad8\u6027\u80fd\u670d\u52a1\u5668\u7ec4\u4ef6&#xff0c;\u6240\u4ee5\u8fd9\u4e2a\u65b9\u6cd5\u4e0d\u9002\u7528&#xff0c;\u7b2c\u4e8c\u79cd\u65b9\u6cd5\u5c31\u662f\u5c06\u65e5\u5fd7\u6a21\u5757\u6539\u6210\u4e00\u4e2a\u591a\u7ebf\u7a0b\u5f02\u6b65\u7248\u7684&#xff0c;\u4f46\u662f\u8fd9\u4f1a\u52a0\u5927\u9879\u76ee\u7684\u5de5\u4f5c\u91cf&#xff08;\u5982\u679c\u81ea\u5df1\u505a\u8fc7\u5f02\u6b65\u65e5\u5fd7\u9879\u76ee\u53ef\u4ee5\u4f7f\u7528\u81ea\u5df1\u505a\u7684&#xff09;&#xff0c;\u6240\u4ee5\u535a\u4e3b\u5efa\u8bae\u76f4\u63a5\u4f7f\u7528\u5f00\u6e90\u7684\u7b2c\u4e09\u65b9\u5e93spdlog&#xff0c;\u4f7f\u7528\u65b9\u4fbf\u800c\u4e14\u5f88\u5bb9\u6613\u79fb\u690d\u5230\u81ea\u5df1\u7684\u9879\u76ee\u4e2d<\/p>\n<p>\u4e0a\u9762\u53ea\u662f\u63d0\u524d\u8bf4\u660e&#xff0c;\u5728\u6ca1\u6709\u5f15\u5165\u591a\u7ebf\u7a0b\u4e4b\u524d&#xff0c;\u8fd8\u662f\u5148\u4f7f\u7528\u7b80\u5355\u7684\u65e5\u5fd7\u6a21\u5757\u5373\u53ef&#xff0c;\u53ea\u8981\u5c01\u88c5\u6253\u5370\u8fc7\u7a0b\u5373\u53ef&#xff0c;\u5e76\u52a0\u5165\u65e5\u5fd7\u7b49\u7ea7&#xff0c;\u6587\u4ef6\u540d&#xff0c;\u6587\u4ef6\u884c\u53f7&#xff0c;\u65f6\u95f4\u7b49\u3002\u8fd9\u91cc\u4f7f\u7528\u4e00\u4e9bC\u8bed\u8a00\u7684\u8bed\u6cd5\u6765\u83b7\u53d6\u8fd9\u4e9b\u4fe1\u606f&#xff0c;\u6bd4\u5982__FILE__\u548c__LINE__\u53ef\u4ee5\u83b7\u53d6\u6587\u4ef6\u540d\u548c\u884c\u53f7&#xff0c;\u7136\u540e\u901a\u8fc7\u5b8f\u5b9a\u4e49\u8ba9\u8c03\u7528\u8005\u53ea\u9700\u4f20\u5165\u65e5\u5fd7\u7b49\u7ea7\u548c\u4fe1\u606f\u5373\u53ef<\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name function\">LOG<\/span><span class=\"token expression\"><span class=\"token punctuation\">(<\/span>LEVEL<span class=\"token punctuation\">,<\/span> MESSAGE<span class=\"token punctuation\">)<\/span> <span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span>#LEVEL<span class=\"token punctuation\">,<\/span> MESSAGE<span class=\"token punctuation\">,<\/span> <span class=\"token constant\">__FILE__<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token constant\">__LINE__<\/span><span class=\"token punctuation\">)<\/span><\/span><\/span><br \/>\n<span class=\"token comment\">\/\/LEVEL\u524d\u52a0#\u662f\u4e3a\u4e86\u6253\u5370\u51fa\u6765\u7684\u7b49\u7ea7\u4e0d\u662f\u6570\u5b57\u800c\u662f\u5b57\u6bcd<\/span><\/p>\n<p>\u4f7f\u7528\u8005\u53ea\u9700\u8981\u4f7f\u7528LOG(LEVEL, MESSAGE)\u5373\u53ef\u6253\u5370\u65e5\u5fd7\u4fe1\u606f&#xff0c;\u4e0b\u9762\u662f\u5b8c\u6574\u65e5\u5fd7\u4ee3\u7801<\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;string&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;iostream&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;ctime&gt;<\/span><\/span><\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">NORMAL<\/span> <span class=\"token expression\"><span class=\"token number\">1<\/span><\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">DEBUG<\/span> <span class=\"token expression\"><span class=\"token number\">2<\/span><\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">WARNING<\/span> <span class=\"token expression\"><span class=\"token number\">3<\/span><\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">ERROR<\/span> <span class=\"token expression\"><span class=\"token number\">4<\/span><\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">FATAL<\/span> <span class=\"token expression\"><span class=\"token number\">5<\/span><\/span><\/span><\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name function\">LOG<\/span><span class=\"token expression\"><span class=\"token punctuation\">(<\/span>LEVEL<span class=\"token punctuation\">,<\/span> MESSAGE<span class=\"token punctuation\">)<\/span> <span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span>#LEVEL<span class=\"token punctuation\">,<\/span> MESSAGE<span class=\"token punctuation\">,<\/span> <span class=\"token constant\">__FILE__<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token constant\">__LINE__<\/span><span class=\"token punctuation\">)<\/span><\/span><\/span><\/p>\n<p><span class=\"token keyword\">void<\/span> <span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span>std<span class=\"token operator\">::<\/span>string level<span class=\"token punctuation\">,<\/span> std<span class=\"token operator\">::<\/span>string message<span class=\"token punctuation\">,<\/span> std<span class=\"token operator\">::<\/span>string file<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">int<\/span> line<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u83b7\u53d6\u5f53\u524d\u65f6\u95f4<\/span><br \/>\n    std<span class=\"token operator\">::<\/span>time_t t <span class=\"token operator\">&#061;<\/span> std<span class=\"token operator\">::<\/span><span class=\"token function\">time<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">nullptr<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">char<\/span> timeStr<span class=\"token punctuation\">[<\/span><span class=\"token number\">100<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    std<span class=\"token operator\">::<\/span><span class=\"token function\">strftime<\/span><span class=\"token punctuation\">(<\/span>timeStr<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">sizeof<\/span><span class=\"token punctuation\">(<\/span>timeStr<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;%Y-%m-%d %H:%M:%S&#034;<\/span><span class=\"token punctuation\">,<\/span> std<span class=\"token operator\">::<\/span><span class=\"token function\">localtime<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>t<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    std<span class=\"token operator\">::<\/span>cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#039;[&#039;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034;Level# &#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> level <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#039;]&#039;<\/span><br \/>\n              <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#039;[&#039;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034;time# &#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> timeStr <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#039;]&#039;<\/span><br \/>\n              <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#039;[&#039;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034;File# &#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> file <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#039;]&#039;<\/span><br \/>\n              <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#039;[&#039;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034;Line# &#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> line <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#039;]&#039;<\/span><br \/>\n              <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034;Message# &#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> message<br \/>\n              <span class=\"token operator\">&lt;&lt;<\/span> std<span class=\"token operator\">::<\/span>endl<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<hr \/>\n<h3>3. \u7f13\u51b2\u533a\u6a21\u5757<\/h3>\n<h4>\u8bbe\u8ba1\u601d\u60f3<\/h4>\n<p>\u7f13\u51b2\u533a\u6a21\u5757\u5c31\u662f\u81ea\u5df1\u8bbe\u8ba1\u4e00\u4e2a\u7528\u6237\u7f13\u51b2\u533a&#xff0c;\u5f53\u4e00\u4e2a\u8fde\u63a5\u53d1\u9001\u6570\u636e\u8fc7\u6765\u4e4b\u540e\u5f53\u53ef\u8bfb\u4e8b\u4ef6\u89e6\u53d1\u65f6\u5148\u5c06\u5185\u6838\u7f13\u51b2\u533a\u4e2d\u7684\u6570\u636e\u653e\u5165\u6211\u4eec\u81ea\u5df1\u7684\u7528\u6237\u7f13\u51b2\u533a\u4e2d&#xff0c;\u4ee5\u4fbf\u5185\u6838\u7f13\u51b2\u533a\u6301\u7eed\u4fdd\u6301\u53ef\u5199\u72b6\u6001\u800c\u51cf\u5c11\u7b49\u5f85\u65f6\u95f4&#xff0c;\u8fd9\u6837\u5ba2\u6237\u7aef\u5c31\u53ef\u4ee5\u6301\u7eed\u5411\u670d\u52a1\u7aef\u8fde\u7eed\u53d1\u9001\u6570\u636e&#xff0c;\u63d0\u9ad8\u4e86\u6548\u7387\u3002<\/p>\n<p>\u4e3a\u4e86\u65b9\u4fbf\u7ba1\u7406&#xff0c;\u7528\u6237\u7f13\u51b2\u533a\u80af\u5b9a\u662f\u4f7f\u7528C&#043;&#043;\u7684STL\u5bb9\u5668\u6765\u5145\u5f53&#xff0c;\u8fd9\u91cc\u6211\u4eec\u5c31\u7528vector\u6765\u5145\u5f53\u7f13\u51b2\u533a&#xff0c;\u90a3\u4e48\u5c31\u53ef\u4ee5\u4f7f\u7528\u53cc\u6307\u9488\u6765\u5145\u5f53\u53ef\u8bfb\u6570\u636e\u7684\u5f00\u59cb\u4f4d\u7f6e\u548c\u53ef\u5199\u6570\u636e\u7684\u5f00\u59cb\u4f4d\u7f6e&#xff0c;\u5199\u6570\u636e\u7684\u65f6\u5019\u76f4\u63a5\u4ece\u53ef\u5199\u6307\u9488\u5f00\u59cb\u5199&#xff0c;\u8bfb\u6570\u636e\u7684\u65f6\u5019\u76f4\u63a5\u4ece\u53ef\u8bfb\u6307\u9488\u5f00\u59cb\u8bfb\u76f4\u5230\u8bfb\u5230\u53ef\u5199\u6307\u9488\u4e3a\u6b62\u3002<\/p>\n<p>\u7136\u540e\u5c31\u662f\u6269\u5bb9\u65b9\u6848\u7684\u8bbe\u8ba1&#xff0c;\u8fd9\u4e2a\u65f6\u5019\u53ef\u4ee5\u5206\u4e3a\u4e24\u5927\u60c5\u51b5&#xff0c;\u6574\u4e2a\u6570\u7ec4\u7684\u7a7a\u4f59\u7a7a\u95f4&#xff08;\u5373\u53ef\u53ef\u8bfb\u8d77\u59cb\u4f4d\u7f6e\u5230\u5199\u8d77\u59cb\u4f4d\u7f6e\u4e4b\u95f4\u7a7a\u95f4\u4ee5\u5916\u7684\u7a7a\u95f4&#xff09;\u662f\u5426\u6709\u8db3\u591f\u7a7a\u95f4\u5199\u5165\u4e0b\u4e00\u6b21\u7684\u5199\u5165\u6570\u636e\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250419212154-680413f2d8021.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>\u7b2c\u4e00\u79cd\u60c5\u51b5&#xff0c;\u5982\u679c\u4e0d\u591f\u7684\u8bdd&#xff0c;\u76f4\u63a5\u6269\u5bb9&#xff0c;\u8fd9\u91cc\u53ef\u4ee5\u4f7f\u7528\u4e00\u79cd\u6269\u5bb9\u601d\u60f3&#xff0c;\u5c31\u662f\u6bcf\u6b21\u6269\u5bb9\u53ef\u4ee5\u53d6\u5f53\u524d\u6570\u7ec4\u5927\u5c0f\u76841.5\u500d\u5927\u5c0f\u548c\u4ece\u53ef\u5199\u8d77\u59cb\u4f4d\u7f6e\u5199\u5165\u8be5\u6570\u636e\u540e\u7684\u7a7a\u95f4\u5927\u5c0f\u4e24\u8005\u7684\u6700\u5927\u503c\u5f53\u4f5c\u8be5\u6b21\u6269\u5bb9\u7684\u5927\u5c0f&#xff0c;\u8fd9\u6837\u53ef\u4ee5\u51cf\u5c11\u6269\u5bb9\u6b21\u6570\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250419212156-680413f444f77.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>\u7b2c\u4e8c\u79cd\u60c5\u51b5\u5c31\u662f\u4e0d\u6269\u5bb9\u5373\u53ef\u5199\u5165\u8be5\u6570\u636e&#xff0c;\u4f46\u662f\u8fd9\u65f6\u5206\u4e24\u79cd\u60c5\u51b5<\/p>\n<ul>\n<li>\u7b2c\u4e00\u79cd\u60c5\u51b5\u5c31\u662f\u53ef\u5199\u8d77\u59cb\u4f4d\u7f6e\u540e\u9762\u7684\u7a7a\u95f4\u8db3\u591f\u5199\u5165\u8be5\u6570\u636e&#xff0c;\u90a3\u4e48\u76f4\u63a5\u5199\u5165\u5373\u53ef<\/li>\n<\/ul>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250419212157-680413f58f250.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<ul>\n<li>\u7b2c\u4e8c\u79cd\u60c5\u51b5\u5c31\u662f\u53ef\u5199\u8d77\u59cb\u4f4d\u7f6e\u540e\u9762\u4e0d\u8db3\u4ee5\u5199\u5165\u8be5\u6570\u636e&#xff0c;\u4f46\u662f\u53ef\u5199\u8d77\u59cb\u4f4d\u7f6e\u540e\u9762\u7a7a\u95f4\u548c\u53ef\u8bfb\u8d77\u59cb\u4f4d\u7f6e\u4e4b\u524d\u7684\u7a7a\u95f4\u4e4b\u548c\u53ef\u4ee5\u5199\u5165\u8be5\u6570\u636e&#xff0c;\u8fd9\u65f6\u53ef\u4ee5\u5c06\u4e2d\u95f4\u7684\u53ef\u8bfb\u6570\u636e\u5411\u524d\u79fb\u52a8\u81f3\u7f13\u51b2\u533a\u5934\u90e8&#xff0c;\u7136\u540e\u76f4\u63a5\u4ece\u53ef\u5199\u8d77\u59cb\u4f4d\u7f6e\u5199\u5165&#xff08;\u79fb\u52a8\u540e\u9700\u8981\u79fb\u52a8\u8fd9\u4e24\u4e2a\u6307\u9488\u7684\u4f4d\u7f6e&#xff09;<\/li>\n<\/ul>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250419212158-680413f64f6b8.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h4>\u63a5\u53e3\u8bbe\u8ba1<\/h4>\n<p>\u63a5\u4e0b\u6765\u5c31\u662f\u6240\u9700\u8981\u5411\u5916\u63d0\u4f9b\u7684\u529f\u80fd\u63a5\u53e3&#xff0c;\u8fd9\u91cc\u9700\u8981\u8003\u8651\u540e\u9762\u6240\u8981\u7528\u5230\u7684\u63a5\u53e3&#xff0c;\u6216\u8005\u5148\u5b9e\u73b0\u57fa\u7840\u63a5\u53e3&#xff0c;\u7b49\u540e\u9762\u8981\u7528\u4ec0\u4e48\u63a5\u53e3\u518d\u5b9e\u73b0&#xff0c;\u535a\u4e3b\u5c31\u5c06\u6240\u6709\u9700\u8981\u4f7f\u7528\u5230\u7684\u63a5\u53e3\u90fd\u63d0\u53ca\u4e86<\/p>\n<p>\u7b2c\u4e00\u80af\u5b9a\u662f\u9700\u8981\u63d0\u4f9b\u8bfb\u5199\u63a5\u53e3&#xff0c;\u535a\u4e3b\u5efa\u8bae\u8fd9\u4e2a\u8bfb\u5199\u63a5\u53e3\u53ef\u4ee5\u91cd\u8f7d\u591a\u79cd&#xff0c;\u53ef\u4ee5\u4f7f\u7528\u5b57\u7b26\u4e32\u6307\u9488\u6216\u8005string\u5199\u5165\u548c\u8bfb\u51fa\u6570\u636e&#xff1b;\u7b2c\u4e8c\u4e2a\u5c31\u662f\u83b7\u53d6\u53ef\u8bfb\u6570\u636e\u5927\u5c0f\u548c\u662f\u5426\u6709\u6570\u636e\u53ef\u8bfb\u7684\u63a5\u53e3&#xff1b;\u7b2c\u4e09\u4e2a\u662f\u540e\u9762Http\u6a21\u5757\u4e2d\u8981\u7528\u5230\u7684\u53d6\u51fa\u7f13\u51b2\u533a\u4e2d\u7684\u4e00\u884c\u6570\u636e&#xff08;\u5373\u53ef\u8bfb\u8d77\u59cb\u4f4d\u7f6e\u5230\u7b2c\u4e00\u4e2a\u2019\\\\n\u2019\u7684\u6570\u636e&#xff09;&#xff1b;\u7b2c\u56db\u4e2a\u662f\u7f13\u51b2\u533a\u6e05\u7a7a\u3002\u8fd9\u4e9b\u5c31\u662f\u51e0\u4e2a\u540e\u9762\u8981\u7528\u7684\u5bf9\u5916\u63a5\u53e3\u4e86<\/p>\n<p><span class=\"token comment\">\/\/ \u83b7\u53d6\u53ef\u8bfb\u6570\u636e\u5927\u5c0f<\/span><br \/>\n<span class=\"token keyword\">inline<\/span> <span class=\"token keyword\">uint64_t<\/span> <span class=\"token function\">GetReadSize<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u5224\u65ad\u7f13\u51b2\u533a\u4e2d\u662f\u5426\u6709\u6570\u636e\u53ef\u8bfb<\/span><br \/>\n<span class=\"token keyword\">bool<\/span> <span class=\"token function\">AbleRead<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u5199\u5165\u6570\u636e&#xff08;\u5bf9\u5916\u63a5\u53e3&#xff09;<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">Write<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token operator\">*<\/span>data<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">uint64_t<\/span> len<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">Write<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> std<span class=\"token operator\">::<\/span>string <span class=\"token operator\">&amp;<\/span>str<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">Write<\/span><span class=\"token punctuation\">(<\/span>Buffer <span class=\"token operator\">&amp;<\/span>buff<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u8bfb\u51fa\u6570\u636e&#xff08;\u5bf9\u5916\u63a5\u53e3&#xff09;<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">Read<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span> <span class=\"token operator\">*<\/span>out<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">uint64_t<\/span> len <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\nstd<span class=\"token operator\">::<\/span>string <span class=\"token function\">Read<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">uint64_t<\/span> len <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u83b7\u53d6\u4e00\u884c\u6570\u636e\u5373\u4ece\u53ef\u8bfb\u8d77\u59cb\u4f4d\u7f6e\u5230\u7b2c\u4e00\u4e2a&#039;\\\\n&#039;(\u8fd9\u91cc\u5305\u62ec&#039;\\\\n&#039;)&#xff08;\u5bf9\u5916\u63a5\u53e3&#xff09;<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">GetLine<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span> <span class=\"token operator\">*<\/span>out<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\nstd<span class=\"token operator\">::<\/span>string <span class=\"token function\">GetLine<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u6e05\u7a7a\u7f13\u51b2\u533a<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">Clear<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u9664\u4e86\u8fd9\u4e9b\u8fd8\u6709\u4e00\u4e9b\u79c1\u6709\u63a5\u53e3&#xff0c;\u8fd9\u4e9b\u79c1\u6709\u63a5\u53e3\u90fd\u662f\u4e0a\u9762\u516c\u6709\u63a5\u53e3\u6240\u8c03\u7528\u7684&#xff0c;\u5927\u81f4\u6709\u83b7\u53d6\u7f13\u51b2\u533a\u8d77\u59cb\u5730\u5740\u3001\u83b7\u53d6\u53ef\u8bfb\u8d77\u59cb\u5730\u5740\u6307\u9488\u3001\u83b7\u53d6\u53ef\u5199\u8d77\u59cb\u5730\u5740\u6307\u9488\u3001\u83b7\u53d6\u5f53\u524d\u6574\u4e2a\u7f13\u51b2\u533a\u4e2d\u53ef\u5199\u7a7a\u95f4\u5927\u5c0f\u5373\u7a7a\u95f2\u7a7a\u95f4\u3001\u83b7\u53d6\u53ef\u8bfb\u8d77\u59cb\u4f4d\u7f6e\u4e4b\u524d\u7684\u7a7a\u95f4\u3001\u83b7\u53d6\u53ef\u5199\u8d77\u59cb\u4f4d\u7f6e\u4ee5\u53ca\u4e4b\u540e\u7684\u4f4d\u7f6e\u3001\u79fb\u52a8\u53ef\u5199\u8d77\u59cb\u4f4d\u7f6e\u3001\u79fb\u52a8\u53ef\u8bfb\u8d77\u59cb\u4f4d\u7f6e\u3001\u786e\u4fdd\u7f13\u51b2\u533a\u80fd\u591f\u5bb9\u7eb3\u63a5\u4e0b\u6765\u8981\u5199\u5165\u7684\u6570\u636e\u3001\u5199\u5165\u6570\u636e\u3001\u8bfb\u51fa\u6570\u636e\u3001\u83b7\u53d6\u4ece\u53ef\u8bfb\u8d77\u59cb\u4f4d\u7f6e\u5f00\u59cb\u7684\u7b2c\u4e00\u4e2a\u2019\\\\n\u2019\u4f4d\u7f6e\u5730\u5740\u6307\u9488\u8fd9\u4e9b\u79c1\u6709\u63a5\u53e3&#xff0c;\u8fd9\u4e9b\u5b9e\u73b0\u8d77\u6765\u5e76\u4e0d\u9ebb\u70e6&#xff0c;\u800c\u4e14\u4e0a\u9762\u6269\u5bb9\u601d\u60f3\u5df2\u7ecf\u8be6\u7ec6\u8bb2\u89e3\u8fc7&#xff0c;\u6240\u4ee5\u8fd9\u4e9b\u5c31\u4e0d\u4e00\u4e00\u8be6\u7ec6\u89e3\u91ca\u4e86<\/p>\n<p><span class=\"token comment\">\/\/ \u83b7\u53d6\u7f13\u51b2\u533a\u8d77\u59cb\u5730\u5740<\/span><br \/>\n<span class=\"token keyword\">inline<\/span> <span class=\"token keyword\">char<\/span> <span class=\"token operator\">*<\/span><span class=\"token function\">Begin<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u83b7\u53d6\u53ef\u8bfb\u8d77\u59cb\u5730\u5740\u6307\u9488<\/span><br \/>\n<span class=\"token keyword\">inline<\/span> <span class=\"token keyword\">char<\/span> <span class=\"token operator\">*<\/span><span class=\"token function\">GetWriteAddr<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u83b7\u53d6\u53ef\u5199\u8d77\u59cb\u5730\u5740\u6307\u9488<\/span><br \/>\n<span class=\"token keyword\">inline<\/span> <span class=\"token keyword\">char<\/span> <span class=\"token operator\">*<\/span><span class=\"token function\">GetReadAddr<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u83b7\u53d6\u5f53\u524d\u6574\u4e2a\u7f13\u51b2\u533a\u4e2d\u53ef\u5199\u7a7a\u95f4\u5927\u5c0f\u5373\u7a7a\u95f2\u7a7a\u95f4&#xff0c;\u5305\u62ec\u53ef\u8bfb\u8d77\u59cb\u4f4d\u7f6e\u4e4b\u524d\u7684\u7a7a\u95f4\u548c\u53ef\u5199\u8d77\u59cb\u4f4d\u7f6e\u4ee5\u53ca\u4e4b\u540e\u7684\u4f4d\u7f6e<\/span><br \/>\n<span class=\"token keyword\">inline<\/span> <span class=\"token keyword\">uint64_t<\/span> <span class=\"token function\">GetWriteSize<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u83b7\u53d6\u53ef\u8bfb\u8d77\u59cb\u4f4d\u7f6e\u4e4b\u524d\u7684\u7a7a\u95f4<\/span><br \/>\n<span class=\"token keyword\">inline<\/span> <span class=\"token keyword\">uint64_t<\/span> <span class=\"token function\">GetHeadEmptySize<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u83b7\u53d6\u53ef\u5199\u8d77\u59cb\u4f4d\u7f6e\u4ee5\u53ca\u4e4b\u540e\u7684\u4f4d\u7f6e<\/span><br \/>\n<span class=\"token keyword\">inline<\/span> <span class=\"token keyword\">uint64_t<\/span> <span class=\"token function\">GetTailEmptySize<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u79fb\u52a8\u53ef\u5199\u8d77\u59cb\u4f4d\u7f6e<\/span><br \/>\n<span class=\"token keyword\">inline<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">MoveWritePos<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> <span class=\"token keyword\">uint64_t<\/span> len<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u79fb\u52a8\u53ef\u8bfb\u8d77\u59cb\u4f4d\u7f6e<\/span><br \/>\n<span class=\"token keyword\">inline<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">MoveReadPos<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> <span class=\"token keyword\">uint64_t<\/span> len<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u786e\u4fdd\u7f13\u51b2\u533a\u80fd\u591f\u5bb9\u7eb3\u63a5\u4e0b\u6765\u8981\u5199\u5165\u7684\u6570\u636e&#xff0c;\u5982\u679c\u4e0d\u591f\u5219\u6269\u5bb9&#xff0c;\u7a7a\u95f4\u8db3\u591f\u5219\u9700\u6309\u7167\u4e24\u79cd\u60c5\u51b5\u6765\u5904\u7406<\/span><br \/>\n<span class=\"token comment\">\/\/ 1. \u53ef\u5199\u8d77\u59cb\u4f4d\u7f6e\u4e4b\u540e\u7684\u7a7a\u95f4\u8db3\u591f\u5927\u76f4\u63a5\u5199\u5165<\/span><br \/>\n<span class=\"token comment\">\/\/ 2. \u53ef\u5199\u8d77\u59cb\u4f4d\u7f6e\u4e4b\u540e\u7684\u7a7a\u95f4\u4e0d\u591f&#xff0c;\u4f46\u662f\u52a0\u4e0a\u53ef\u8bfb\u8d77\u59cb\u4f4d\u7f6e\u4e4b\u524d\u7684\u7a7a\u95f4\u5927\u5c0f\u8db3\u591f&#xff0c;\u5219\u5148\u5c06\u6570\u636e\u5f80\u524d\u79fb\u52a8\u5728\u5199\u5165<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">EnableWriteSpaceEnough<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> <span class=\"token keyword\">uint64_t<\/span> len<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u5199\u5165\u6570\u636e<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">_Write<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token operator\">*<\/span>data<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">const<\/span> <span class=\"token keyword\">uint64_t<\/span> len<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u8bfb\u51fa\u6570\u636e<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">_Read<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span> <span class=\"token operator\">*<\/span>out<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">const<\/span> <span class=\"token keyword\">uint64_t<\/span> len<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u83b7\u53d6\u4ece\u53ef\u8bfb\u8d77\u59cb\u4f4d\u7f6e\u5f00\u59cb\u7684\u7b2c\u4e00\u4e2a&#039;\\\\n&#039;\u4f4d\u7f6e\u5730\u5740\u6307\u9488<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token operator\">*<\/span><span class=\"token function\">GetCrlf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<h4>\u529f\u80fd\u5b9e\u73b0<\/h4>\n<p>\u5b9e\u73b0\u8fc7\u7a0b\u5176\u5b9e\u5f88\u7b80\u5355&#xff0c;\u535a\u4e3b\u4e3b\u8981\u5bf9\u8bfb\u5199\u5165\u6570\u636e\u5b9e\u73b0\u8fdb\u884c\u8bb2\u89e3&#xff0c;\u5176\u4ed6\u53ef\u53c2\u8003\u4ee3\u7801\u8fdb\u884c\u7406\u89e3&#xff0c;\u5982\u6709\u95ee\u9898&#xff0c;\u968f\u65f6\u53ef\u5728\u8bc4\u8bba\u533a\u7559\u8a00<\/p>\n<p>\u8bfb\u51fa\u6570\u636e\u4e3b\u8981\u5c31\u4e09\u6b65&#xff0c;\u7b2c\u4e00\u6b65\u68c0\u67e5\u7f13\u51b2\u533a\u4e2d\u662f\u5426\u6709\u6240\u9700\u957f\u5ea6\u7684\u6570\u636e&#xff0c;\u7b2c\u4e8c\u6b65\u5c31\u662f\u4f7f\u7528copy\u51fd\u6570\u5c06\u6570\u636e\u62f7\u8d1d\u51fa\u53bb&#xff0c;\u7b2c\u4e09\u6b65\u5411\u540e\u79fb\u52a8\u53ef\u8bfb\u8d77\u59cb\u4f4d\u7f6e<\/p>\n<p>\u5199\u5165\u6570\u636e\u4e3b\u8981\u4e5f\u5c31\u4e09\u6b65&#xff0c;\u7b2c\u4e00\u6b65\u786e\u4fdd\u7f13\u51b2\u533a\u4e2d\u6709\u7a7a\u95f4\u8fdb\u884c\u5199\u5165&#xff08;\u8fd9\u6b65\u8fc7\u7a0b\u6309\u4e0a\u9762\u6269\u5bb9\u65b9\u6848\u8fdb\u884c\u5b9e\u73b0\u5373\u53ef&#xff09;&#xff0c;\u7b2c\u4e8c\u6b65\u5c06\u6570\u636e\u62f7\u8d1d\u8fdb\u7f13\u51b2\u533a&#xff0c;\u7b2c\u4e09\u6b65\u5411\u540e\u79fb\u52a8\u53ef\u5199\u8d77\u59cb\u4f4d\u7f6e<\/p>\n<p>\u662f\u4e0d\u662f\u975e\u5e38\u7b80\u5355&#xff0c;\u90a3\u535a\u4e3b\u63d0\u524d\u9884\u544a\u4e00\u4e0b&#xff0c;\u4e0b\u4e00\u7bc7\u535a\u5ba2\u7684\u5185\u5bb9\u5b9e\u73b0\u975e\u5e38\u8981\u547d&#xff0c;\u8bf7\u63d0\u524d\u505a\u597d\u5fc3\u7406\u51c6\u5907&#xff0c;\u662f\u4e00\u573a\u786c\u4ed7\u8981\u6253<\/p>\n<p>\u5177\u4f53\u5b9e\u73b0\u4ee3\u7801\u8bf7\u8df3\u8f6c\u5230\u6587\u7ae0\u5c3e\u90e8\u90e8\u5206<\/p>\n<h4>\u6d4b\u8bd5<\/h4>\n<p>\u4e3b\u8981\u5c31\u662f\u6d4b\u8bd5\u7f13\u51b2\u533a\u662f\u5426\u80fd\u6b63\u5e38\u8bfb\u5199&#xff0c;\u8fd8\u6709\u6269\u5bb9\u7684\u6b63\u5e38\u8fd0\u4f5c&#xff08;\u8fd9\u91cc\u53ea\u662f\u63d0\u4f9b\u7b80\u5355\u7684\u6d4b\u8bd5&#xff0c;\u81ea\u5df1\u53ef\u4ee5\u60f3\u60f3\u53ef\u4ee5\u505a\u5176\u4ed6\u6d4b\u8bd5&#xff09;<\/p>\n<p>\u6d4b\u8bd5\u4ee3\u7801&#xff1a;<\/p>\n<p><span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    ns_buffer<span class=\"token operator\">::<\/span>Buffer buffer<span class=\"token punctuation\">;<\/span><br \/>\n    std<span class=\"token operator\">::<\/span>string str <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;xiaomisu7ultra&#034;<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u5199\u5165\u6570\u636e<\/span><br \/>\n    std<span class=\"token operator\">::<\/span>string s<span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u8bfb\u51fa\u6570\u636e<\/span><br \/>\n    <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">100<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/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>i <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">50<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            s <span class=\"token operator\">&#061;<\/span> buffer<span class=\"token punctuation\">.<\/span><span class=\"token function\">Read<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            std<span class=\"token operator\">::<\/span>cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034;\u7b2c\u4e00\u6b21\u8bfb\u51fa\u6570\u636e&#xff1a;&#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> s <span class=\"token operator\">&lt;&lt;<\/span> std<span class=\"token operator\">::<\/span>endl<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        buffer<span class=\"token punctuation\">.<\/span><span class=\"token function\">Write<\/span><span class=\"token punctuation\">(<\/span>str<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    s <span class=\"token operator\">&#061;<\/span> buffer<span class=\"token punctuation\">.<\/span><span class=\"token function\">Read<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    std<span class=\"token operator\">::<\/span>cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034;\u7b2c\u4e8c\u6b21\u8bfb\u51fa\u6570\u636e&#xff1a;&#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> s <span class=\"token operator\">&lt;&lt;<\/span> std<span class=\"token operator\">::<\/span>endl<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u6ce8&#xff1a;\u8fd9\u91cc\u535a\u4e3b\u5728\u6d4b\u8bd5\u7684\u65f6\u5019\u53d1\u73b0\u4e00\u4e2a\u95ee\u9898&#xff0c;\u56e0\u4e3a\u8be5\u6a21\u5757\u6709\u4e9b\u5730\u65b9\u662f\u540e\u9762\u6539\u8fc7\u7684&#xff0c;\u800c\u4e14\u540e\u9762\u4f7f\u7528\u4e86any\u7c7b\u548cspdlog&#xff0c;\u6240\u4ee5\u4e00\u76f4\u4f7f\u7528C&#043;&#043;17\u6807\u51c6&#xff0c;\u7136\u540e\u5728\u5199\u535a\u5ba2\u6d4b\u8bd5\u7684\u65f6\u5019&#xff0c;\u53d1\u73b0c&#043;&#043;11\u548cc&#043;&#043;17\u5728string\u7684data()\u63a5\u53e3\u4e0d\u592a\u4e00\u6837&#xff0c;c&#043;&#043;11\u6ca1\u6709\u91cd\u8f7d\u51fa\u975econst\u8fd4\u56de\u503c\u7684\u63a5\u53e3&#xff0c;\u4f46c&#043;&#043;17\u91cd\u8f7d\u4e86&#xff0c;\u6240\u4ee5\u5728\u6d4b\u8bd5\u7684\u65f6\u5019\u6ce8\u610f\u4e00\u4e0b\u8fd9\u4e2a\u95ee\u9898<\/p>\n<p>.\/Buff<br \/>\n\u7b2c\u4e00\u6b21\u8bfb\u51fa\u6570\u636e&#xff1a;xiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultra<br \/>\n\u7b2c\u4e8c\u6b21\u8bfb\u51fa\u6570\u636e&#xff1a;xiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultraxiaomisu7ultra<\/p>\n<p>\u8fd9\u4e2a\u6d4b\u8bd5\u5373\u6d4b\u8bd5\u4e86\u8bfb\u5199\u548c\u4e2d\u9014\u8bfb\u51fa\u6570\u636e\u4ee5\u53ca\u6269\u5bb9<\/p>\n<hr \/>\n<h3>4. \u5957\u63a5\u5b57\u6a21\u5757<\/h3>\n<h4>\u8bbe\u8ba1\u601d\u60f3<\/h4>\n<p>\u8fd9\u4e2a\u6a21\u5757\u5c31\u66f4\u7b80\u5355\u4e86&#xff0c;\u5982\u679c\u5b66\u8fc7\u7f51\u7edc\u7f16\u7a0b\u7684\u5e94\u8be5\u90fd\u5b9e\u73b0\u8fc7&#xff0c;\u5c31\u662f\u5c06Linux\u63d0\u4f9b\u7684\u90a3\u5957\u63a5\u53e3\u8fdb\u884c\u5c01\u88c5&#xff0c;\u4f46\u662f\u5c01\u88c5\u540e\u9700\u8981\u5c06\u4e0d\u9700\u8981\u63d0\u4f9b\u7ed9\u5916\u90e8\u7684\u8bbe\u7f6e\u6210\u79c1\u6709&#xff0c;\u5176\u4ed6\u8bbe\u7f6e\u4e3a\u516c\u7528\u3002\u800c\u8be5\u6a21\u5757\u4e3b\u8981\u5c31\u662f\u5bf9socket\u63a5\u53e3\u5c01\u88c5\u4ee5\u53ca\u63d0\u4f9b\u521b\u5efa\u670d\u52a1\u7aef\u4ee5\u53ca\u5ba2\u6237\u7aef\u7684\u63a5\u53e3\u4ee5\u53ca\u670d\u52a1\u7aef\u548c\u5ba2\u6237\u7aef\u6240\u8981\u7528\u5230\u7684\u63a5\u53e3<\/p>\n<p>\u4e3a\u4e86\u5b9e\u73b0\u8fd9\u4e2a\u6a21\u5757&#xff0c;\u5148\u4e86\u89e3\u4e00\u4e0bLinux\u63d0\u4f9b\u7684\u63a5\u53e3\u4f7f\u7528\u65b9\u6cd5<\/p>\n<ul>\n<li>   <span class=\"token keyword\">int<\/span> <span class=\"token function\">socket<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> domain<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">int<\/span> type<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">int<\/span> protocol<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n<p>\u53c2\u6570<\/p>\n<li>domain(\u534f\u8bae\u65cf): \u6307\u5b9a\u5957\u63a5\u5b57\u4f7f\u7528\u7684\u534f\u8bae\u65cf&#xff08;\u901a\u4fe1\u57df&#xff09;\u3002\u5e38\u89c1\u7684\u503c\u5305\u62ec&#xff1a;\n<ul>\n<li>AF_INET&#xff1a;IPv4 \u7f51\u7edc\u534f\u8bae\u3002<\/li>\n<li>AF_INET6&#xff1a;IPv6 \u7f51\u7edc\u534f\u8bae\u3002<\/li>\n<li>AF_UNIX \u6216 AF_LOCAL&#xff1a;\u672c\u5730\u901a\u4fe1&#xff08;\u540c\u4e00\u4e3b\u673a\u4e0a\u7684\u8fdb\u7a0b\u95f4\u901a\u4fe1&#xff09;\u3002<\/li>\n<li>AF_PACKET&#xff1a;\u5e95\u5c42\u5957\u63a5\u5b57&#xff0c;\u7528\u4e8e\u76f4\u63a5\u8bbf\u95ee\u7f51\u7edc\u8bbe\u5907\u3002<\/li>\n<\/ul>\n<\/li>\n<li>type (\u5957\u63a5\u5b57\u7c7b\u578b): \u6307\u5b9a\u5957\u63a5\u5b57\u7684\u7c7b\u578b&#xff0c;\u51b3\u5b9a\u901a\u4fe1\u7684\u7279\u6027\u3002\u5e38\u89c1\u7684\u503c\u5305\u62ec&#xff1a;\n<ul>\n<li>SOCK_STREAM&#xff1a;\u9762\u5411\u8fde\u63a5\u7684\u5957\u63a5\u5b57&#xff08;TCP&#xff09;\u3002<\/li>\n<li>SOCK_DGRAM&#xff1a;\u65e0\u8fde\u63a5\u7684\u5957\u63a5\u5b57&#xff08;UDP&#xff09;\u3002<\/li>\n<li>SOCK_RAW&#xff1a;\u539f\u59cb\u5957\u63a5\u5b57&#xff0c;\u5141\u8bb8\u76f4\u63a5\u8bbf\u95ee\u5e95\u5c42\u534f\u8bae&#xff08;\u9700\u8981\u7ba1\u7406\u5458\u6743\u9650&#xff09;\u3002<\/li>\n<\/ul>\n<\/li>\n<li>protocol(\u534f\u8bae): \u6307\u5b9a\u4f7f\u7528\u7684\u5177\u4f53\u534f\u8bae\u3002\u901a\u5e38\u53ef\u4ee5\u8bbe\u7f6e\u4e3a0&#xff0c;\u8868\u793a\u6839\u636e domain \u548c type \u81ea\u52a8\u9009\u62e9\u5408\u9002\u7684\u534f\u8bae\u3002\u4f8b\u5982&#xff1a;\n<ul>\n<li>\u5bf9\u4e8e SOCK_STREAM \u548c AF_INET&#xff0c;\u9ed8\u8ba4\u534f\u8bae\u662f IPPROTO_TCP\u3002<\/li>\n<li>\u5bf9\u4e8e SOCK_DGRAM \u548c AF_INET&#xff0c;\u9ed8\u8ba4\u534f\u8bae\u662f IPPROTO_UDP\u3002<\/li>\n<\/ul>\n<\/li>\n<p>\u8fd4\u56de\u503c<\/p>\n<ul>\n<li>\u6210\u529f&#xff1a;\u8fd4\u56de\u4e00\u4e2a\u975e\u8d1f\u6574\u6570&#xff0c;\u8868\u793a\u65b0\u521b\u5efa\u7684\u5957\u63a5\u5b57\u6587\u4ef6\u63cf\u8ff0\u7b26&#xff08;sockfd&#xff09;\u3002\u8be5\u63cf\u8ff0\u7b26\u7528\u4e8e\u540e\u7eed\u7684\u5957\u63a5\u5b57\u64cd\u4f5c&#xff08;\u5982 bind\u3001listen\u3001connect \u7b49&#xff09;\u3002<\/li>\n<li>\u5931\u8d25&#xff1a;\u8fd4\u56de-1&#xff0c;\u5e76\u8bbe\u7f6eerrno\u4ee5\u6307\u793a\u9519\u8bef\u539f\u56e0\u3002\u4f8b\u5982&#xff1a;\n<ul>\n<li>EMFILE&#xff1a;\u8fdb\u7a0b\u5df2\u8fbe\u5230\u6587\u4ef6\u63cf\u8ff0\u7b26\u9650\u5236\u3002<\/li>\n<li>ENFILE&#xff1a;\u7cfb\u7edf\u5df2\u8fbe\u5230\u6587\u4ef6\u63cf\u8ff0\u7b26\u9650\u5236\u3002<\/li>\n<li>EACCES&#xff1a;\u6743\u9650\u4e0d\u8db3\u3002<\/li>\n<li>EINVAL&#xff1a;\u53c2\u6570\u65e0\u6548\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr \/>\n<ul>\n<li>   <span class=\"token keyword\">int<\/span> <span class=\"token function\">bind<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> sockfd<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">const<\/span> <span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">sockaddr<\/span> <span class=\"token operator\">*<\/span>addr<span class=\"token punctuation\">,<\/span> socklen_t addrlen<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n<p>\u53c2\u6570<\/p>\n<li>\n<p>sockfd:<\/p>\n<ul>\n<li>\u5957\u63a5\u5b57\u6587\u4ef6\u63cf\u8ff0\u7b26&#xff0c;\u7531 socket() \u51fd\u6570\u8fd4\u56de\u3002<\/li>\n<li>\u8868\u793a\u8981\u7ed1\u5b9a\u7684\u5957\u63a5\u5b57\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>addr:<\/p>\n<ul>\n<li>\n<p>\u6307\u5411 sockaddr \u7ed3\u6784\u4f53\u7684\u6307\u9488&#xff0c;\u8868\u793a\u8981\u7ed1\u5b9a\u7684\u5730\u5740\u3002<\/p>\n<\/li>\n<li>\n<p>\u5177\u4f53\u7c7b\u578b\u901a\u5e38\u662f struct sockaddr_in&#xff08;IPv4&#xff09;\u6216 struct sockaddr_in6&#xff08;IPv6&#xff09;&#xff0c;\u9700\u8981\u5f3a\u5236\u8f6c\u6362\u4e3a (struct sockaddr *)\u3002<\/p>\n<\/li>\n<li>\n<p>\u7ed3\u6784\u4f53\u5185\u5bb9\u5305\u62ec IP \u5730\u5740\u548c\u7aef\u53e3\u53f7\u3002\u4f8b\u5982&#xff1a;<\/p>\n<ul>\n<li>\n<p>\u5bf9\u4e8e IPv4&#xff0c;\u4f7f\u7528struct sockaddr_in<\/p>\n<p> <span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">sockaddr_in<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    sa_family_t sin_family<span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u5730\u5740\u65cf (AF_INET)<\/span><br \/>\n    in_port_t sin_port<span class=\"token punctuation\">;<\/span>   <span class=\"token comment\">\/\/ \u7aef\u53e3\u53f7 (\u7f51\u7edc\u5b57\u8282\u5e8f)<\/span><br \/>\n    <span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">in_addr<\/span> sin_addr<span class=\"token punctuation\">;<\/span>   <span class=\"token comment\">\/\/ IP \u5730\u5740 (\u7f51\u7edc\u5b57\u8282\u5e8f)<\/span><br \/>\n    <span class=\"token keyword\">char<\/span> sin_zero<span class=\"token punctuation\">[<\/span><span class=\"token number\">8<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u586b\u5145\u5b57\u6bb5<\/span><br \/>\n<span class=\"token punctuation\">}<\/span>\n <\/li>\n<li>\n<p>\u5bf9\u4e8e IPv6&#xff0c;\u4f7f\u7528 struct sockaddr_in6\u3002<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>addrlen:<\/p>\n<ul>\n<li>\u6307\u5b9a addr \u7ed3\u6784\u4f53\u7684\u5927\u5c0f&#xff08;\u4ee5\u5b57\u8282\u4e3a\u5355\u4f4d&#xff09;\u3002<\/li>\n<li>\u5bf9\u4e8e IPv4&#xff0c;\u901a\u5e38\u4e3a sizeof(struct sockaddr_in)\u3002<\/li>\n<li>\u5bf9\u4e8e IPv6&#xff0c;\u901a\u5e38\u4e3a sizeof(struct sockaddr_in6)\u3002<\/li>\n<\/ul>\n<\/li>\n<p>\u8fd4\u56de\u503c<\/p>\n<ul>\n<li>\u6210\u529f:\n<ul>\n<li>\u8fd4\u56de 0&#xff0c;\u8868\u793a\u7ed1\u5b9a\u6210\u529f\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u5931\u8d25:\n<ul>\n<li>\u8fd4\u56de-1&#xff0c;\u5e76\u8bbe\u7f6eerrno\u4ee5\u6307\u793a\u9519\u8bef\u539f\u56e0\u3002\u4f8b\u5982&#xff1a;\n<ul>\n<li>EACCES&#xff1a;\u6743\u9650\u4e0d\u8db3\u3002<\/li>\n<li>EADDRINUSE&#xff1a;\u6307\u5b9a\u7684\u5730\u5740\u5df2\u88ab\u5360\u7528\u3002<\/li>\n<li>EBADF&#xff1a;sockfd \u4e0d\u662f\u6709\u6548\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u3002<\/li>\n<li>EINVAL&#xff1a;\u5957\u63a5\u5b57\u5df2\u7ed1\u5b9a&#xff0c;\u6216\u8005\u53c2\u6570\u65e0\u6548\u3002<\/li>\n<li>ENOTSOCK&#xff1a;sockfd \u4e0d\u662f\u5957\u63a5\u5b57\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr \/>\n<ul>\n<li>   <span class=\"token keyword\">int<\/span> <span class=\"token function\">listen<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> sockfd<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">int<\/span> backlog<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n<p>\u53c2\u6570<\/p>\n<li>sockfd:\n<ul>\n<li>\u5957\u63a5\u5b57\u6587\u4ef6\u63cf\u8ff0\u7b26&#xff0c;\u7531 socket() \u51fd\u6570\u8fd4\u56de\u3002<\/li>\n<li>\u5fc5\u987b\u662f\u5df2\u7ecf\u901a\u8fc7 bind() \u7ed1\u5b9a\u4e86\u5730\u5740\u548c\u7aef\u53e3\u7684\u5957\u63a5\u5b57\u3002<\/li>\n<li>\u8868\u793a\u8981\u8bbe\u7f6e\u4e3a\u76d1\u542c\u6a21\u5f0f\u7684\u5957\u63a5\u5b57\u3002<\/li>\n<\/ul>\n<\/li>\n<li>backlog:\n<ul>\n<li>\u6307\u5b9a\u5185\u6838\u4e3a\u6b64\u5957\u63a5\u5b57\u7ef4\u62a4\u7684\u5df2\u5b8c\u6210\u8fde\u63a5\u961f\u5217\u548c\u672a\u5b8c\u6210\u8fde\u63a5\u961f\u5217\u7684\u6700\u5927\u957f\u5ea6\u3002<\/li>\n<li>\u5df2\u5b8c\u6210\u8fde\u63a5\u961f\u5217&#xff1a;\u5b58\u50a8\u5df2\u5b8c\u6210\u4e09\u6b21\u63e1\u624b\u7684\u8fde\u63a5\u3002<\/li>\n<li>\u672a\u5b8c\u6210\u8fde\u63a5\u961f\u5217&#xff1a;\u5b58\u50a8\u6b63\u5728\u8fdb\u884c\u4e09\u6b21\u63e1\u624b\u7684\u8fde\u63a5\u3002<\/li>\n<li>\u5982\u679c\u6709\u66f4\u591a\u7684\u8fde\u63a5\u8bf7\u6c42\u8d85\u8fc7\u961f\u5217\u957f\u5ea6&#xff0c;\u65b0\u7684\u8fde\u63a5\u8bf7\u6c42\u53ef\u80fd\u4f1a\u88ab\u62d2\u7edd&#xff08;\u5ba2\u6237\u7aef\u4f1a\u6536\u5230 ECONNREFUSED \u9519\u8bef&#xff09;\u3002<\/li>\n<li>\u5e38\u89c1\u503c&#xff1a;\n<ul>\n<li>\u901a\u5e38\u8bbe\u7f6e\u4e3a\u4e00\u4e2a\u8f83\u5927\u7684\u503c&#xff08;\u5982 SOMAXCONN&#xff0c;\u7cfb\u7edf\u5b9a\u4e49\u7684\u6700\u5927\u503c&#xff09;\u3002<\/li>\n<li>\u5982\u679c\u8bbe\u7f6e\u4e3a 0&#xff0c;\u5219\u961f\u5217\u957f\u5ea6\u53ef\u80fd\u4f1a\u88ab\u7cfb\u7edf\u8c03\u6574\u4e3a\u9ed8\u8ba4\u503c\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<p>\u8fd4\u56de\u503c<\/p>\n<ul>\n<li>\u6210\u529f:\n<ul>\n<li>\u8fd4\u56de 0\u8868\u793a\u5957\u63a5\u5b57\u6210\u529f\u8fdb\u5165\u76d1\u542c\u6a21\u5f0f\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u5931\u8d25:\n<ul>\n<li>\u8fd4\u56de-1&#xff0c;\u5e76\u8bbe\u7f6eerrno\u4ee5\u6307\u793a\u9519\u8bef\u539f\u56e0\u3002\u4f8b\u5982&#xff1a;\n<ul>\n<li>EADDRINUSE&#xff1a;\u5730\u5740\u5df2\u88ab\u5360\u7528\u3002<\/li>\n<li>EBADF&#xff1a;sockfd \u4e0d\u662f\u6709\u6548\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u3002<\/li>\n<li>ENOTSOCK&#xff1a;sockfd \u4e0d\u662f\u5957\u63a5\u5b57\u3002<\/li>\n<li>EOPNOTSUPP&#xff1a;\u5957\u63a5\u5b57\u7c7b\u578b\u4e0d\u652f\u6301\u76d1\u542c\u64cd\u4f5c&#xff08;\u5982\u975e\u6d41\u5f0f\u5957\u63a5\u5b57&#xff09;\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr \/>\n<ul>\n<li>   <span class=\"token keyword\">int<\/span> <span class=\"token function\">connect<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> sockfd<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">const<\/span> <span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">sockaddr<\/span> <span class=\"token operator\">*<\/span>addr<span class=\"token punctuation\">,<\/span> socklen_t addrlen<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n<p>\u53c2\u6570<\/p>\n<li>\n<p>sockfd:<\/p>\n<ul>\n<li>\u5957\u63a5\u5b57\u6587\u4ef6\u63cf\u8ff0\u7b26&#xff0c;\u7531 socket() \u51fd\u6570\u8fd4\u56de\u3002<\/li>\n<li>\u8868\u793a\u5ba2\u6237\u7aef\u7528\u4e8e\u8fde\u63a5\u7684\u5957\u63a5\u5b57\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>addr:<\/p>\n<ul>\n<li>\n<p>\u6307\u5411 sockaddr \u7ed3\u6784\u4f53\u7684\u6307\u9488&#xff0c;\u8868\u793a\u670d\u52a1\u5668\u7684\u5730\u5740\u4fe1\u606f\u3002<\/p>\n<\/li>\n<li>\n<p>\u5177\u4f53\u7c7b\u578b\u901a\u5e38\u662f struct sockaddr_in&#xff08;IPv4&#xff09;\u6216 struct sockaddr_in6&#xff08;IPv6&#xff09;&#xff0c;\u9700\u8981\u5f3a\u5236\u8f6c\u6362\u4e3a (struct sockaddr *)\u3002<\/p>\n<\/li>\n<li>\n<p>\u7ed3\u6784\u4f53\u5185\u5bb9\u5305\u62ec\u670d\u52a1\u5668\u7684 IP \u5730\u5740\u548c\u7aef\u53e3\u53f7\u3002\u4f8b\u5982&#xff1a;<\/p>\n<ul>\n<li>\n<p>\u5bf9\u4e8e IPv4&#xff0c;\u4f7f\u7528struct sockaddr_in&#xff1a;<\/p>\n<p> <span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">sockaddr_in<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    sa_family_t sin_family<span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u5730\u5740\u65cf (AF_INET)<\/span><br \/>\n    in_port_t sin_port<span class=\"token punctuation\">;<\/span>   <span class=\"token comment\">\/\/ \u7aef\u53e3\u53f7 (\u7f51\u7edc\u5b57\u8282\u5e8f)<\/span><br \/>\n    <span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">in_addr<\/span> sin_addr<span class=\"token punctuation\">;<\/span>   <span class=\"token comment\">\/\/ IP \u5730\u5740 (\u7f51\u7edc\u5b57\u8282\u5e8f)<\/span><br \/>\n    <span class=\"token keyword\">char<\/span> sin_zero<span class=\"token punctuation\">[<\/span><span class=\"token number\">8<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u586b\u5145\u5b57\u6bb5<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span>\n <\/li>\n<li>\n<p>\u5bf9\u4e8e IPv6&#xff0c;\u4f7f\u7528 struct sockaddr_in6\u3002<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>addrlen:<\/p>\n<ul>\n<li>\u6307\u5b9a addr \u7ed3\u6784\u4f53\u7684\u5927\u5c0f&#xff08;\u4ee5\u5b57\u8282\u4e3a\u5355\u4f4d&#xff09;\u3002<\/li>\n<li>\u5bf9\u4e8e IPv4&#xff0c;\u901a\u5e38\u4e3a sizeof(struct sockaddr_in)\u3002<\/li>\n<li>\u5bf9\u4e8e IPv6&#xff0c;\u901a\u5e38\u4e3a sizeof(struct sockaddr_in6)\u3002<\/li>\n<\/ul>\n<\/li>\n<p>\u8fd4\u56de\u503c<\/p>\n<ul>\n<li>\u6210\u529f:\n<ul>\n<li>\u8fd4\u56de 0&#xff0c;\u8868\u793a\u8fde\u63a5\u6210\u529f\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u5931\u8d25:\n<ul>\n<li>\u8fd4\u56de-1&#xff0c;\u5e76\u8bbe\u7f6eerrno\u4ee5\u6307\u793a\u9519\u8bef\u539f\u56e0\u3002\u4f8b\u5982&#xff1a;\n<ul>\n<li>ECONNREFUSED&#xff1a;\u76ee\u6807\u5730\u5740\u62d2\u7edd\u8fde\u63a5\u3002<\/li>\n<li>ETIMEDOUT&#xff1a;\u8fde\u63a5\u8d85\u65f6\u3002<\/li>\n<li>EHOSTUNREACH&#xff1a;\u76ee\u6807\u4e3b\u673a\u4e0d\u53ef\u8fbe\u3002<\/li>\n<li>EINPROGRESS&#xff1a;\u5957\u63a5\u5b57\u4e3a\u975e\u963b\u585e\u6a21\u5f0f&#xff0c;\u8fde\u63a5\u6b63\u5728\u8fdb\u884c\u4e2d\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr \/>\n<ul>\n<li>   ssize_t <span class=\"token function\">recv<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> sockfd<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token operator\">*<\/span>buf<span class=\"token punctuation\">,<\/span> size_t len<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">int<\/span> flags<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n<p>\u53c2\u6570<\/p>\n<li>sockfd:\n<ul>\n<li>\u5957\u63a5\u5b57\u6587\u4ef6\u63cf\u8ff0\u7b26&#xff0c;\u7531 socket() \u6216 accept() \u8fd4\u56de\u3002<\/li>\n<li>\u8868\u793a\u4ece\u54ea\u4e2a\u5957\u63a5\u5b57\u63a5\u6536\u6570\u636e\u3002<\/li>\n<\/ul>\n<\/li>\n<li>buf:\n<ul>\n<li>\u6307\u5411\u4e00\u4e2a\u7f13\u51b2\u533a\u7684\u6307\u9488&#xff0c;\u7528\u4e8e\u5b58\u50a8\u63a5\u6536\u5230\u7684\u6570\u636e\u3002<\/li>\n<li>\u8be5\u7f13\u51b2\u533a\u9700\u8981\u7531\u8c03\u7528\u8005\u5206\u914d&#xff0c;\u5927\u5c0f\u81f3\u5c11\u4e3a len \u5b57\u8282\u3002<\/li>\n<\/ul>\n<\/li>\n<li>len:\n<ul>\n<li>\u6307\u5b9a\u7f13\u51b2\u533a\u7684\u5927\u5c0f&#xff08;\u4ee5\u5b57\u8282\u4e3a\u5355\u4f4d&#xff09;\u3002<\/li>\n<li>\u8868\u793a\u6700\u591a\u63a5\u6536\u591a\u5c11\u5b57\u8282\u7684\u6570\u636e\u3002<\/li>\n<\/ul>\n<\/li>\n<li>flags:\n<ul>\n<li>\u63a7\u5236\u63a5\u6536\u884c\u4e3a\u7684\u6807\u5fd7&#xff0c;\u53ef\u4ee5\u662f\u4ee5\u4e0b\u503c\u7684\u7ec4\u5408&#xff1a;\n<ul>\n<li>0&#xff1a;\u9ed8\u8ba4\u884c\u4e3a&#xff08;\u963b\u585e\u6a21\u5f0f\u4e0b\u7b49\u5f85\u6570\u636e&#xff09;\u3002<\/li>\n<li>MSG_DONTWAIT&#xff1a;\u975e\u963b\u585e\u6a21\u5f0f&#xff0c;\u5982\u679c\u6ca1\u6709\u6570\u636e\u53ef\u7528&#xff0c;\u7acb\u5373\u8fd4\u56de\u3002<\/li>\n<li>MSG_PEEK&#xff1a;\u67e5\u770b\u6570\u636e\u4f46\u4e0d\u4ece\u63a5\u6536\u7f13\u51b2\u533a\u4e2d\u79fb\u9664\u6570\u636e\u3002<\/li>\n<li>MSG_WAITALL&#xff1a;\u7b49\u5f85\u63a5\u6536\u5230\u6307\u5b9a\u7684 len \u5b57\u8282\u6570\u636e&#xff0c;\u9664\u975e\u53d1\u751f\u9519\u8bef\u6216\u8fde\u63a5\u5173\u95ed\u3002<\/li>\n<li>MSG_OOB&#xff1a;\u63a5\u6536\u5e26\u5916\u6570\u636e\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<p>\u8fd4\u56de\u503c<\/p>\n<ul>\n<li>\u6210\u529f:\n<ul>\n<li>\u8fd4\u56de\u63a5\u6536\u5230\u7684\u5b57\u8282\u6570&#xff08;ssize_t \u7c7b\u578b&#xff09;\u3002<\/li>\n<li>\u5982\u679c\u8fd4\u56de\u503c\u4e3a 0&#xff0c;\u8868\u793a\u5bf9\u7aef\u5df2\u5173\u95ed\u8fde\u63a5\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u5931\u8d25:\n<ul>\n<li>\u8fd4\u56de-1&#xff0c;\u5e76\u8bbe\u7f6eerrno\u4ee5\u6307\u793a\u9519\u8bef\u539f\u56e0\u3002\u4f8b\u5982&#xff1a;\n<ul>\n<li>EAGAIN \u6216 EWOULDBLOCK&#xff1a;\u5728\u975e\u963b\u585e\u6a21\u5f0f\u4e0b&#xff0c;\u6ca1\u6709\u6570\u636e\u53ef\u7528\u3002<\/li>\n<li>EBADF&#xff1a;sockfd \u4e0d\u662f\u6709\u6548\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u3002<\/li>\n<li>ECONNRESET&#xff1a;\u8fde\u63a5\u88ab\u5bf9\u7aef\u91cd\u7f6e\u3002<\/li>\n<li>ENOTCONN&#xff1a;\u5957\u63a5\u5b57\u672a\u8fde\u63a5\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr \/>\n<ul>\n<li>   ssize_t <span class=\"token function\">send<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> sockfd<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">const<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token operator\">*<\/span>buf<span class=\"token punctuation\">,<\/span> size_t len<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">int<\/span> flags<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n<p>\u53c2\u6570<\/p>\n<li>sockfd:\n<ul>\n<li>\u5957\u63a5\u5b57\u6587\u4ef6\u63cf\u8ff0\u7b26&#xff0c;\u7531 socket() \u6216 accept() \u8fd4\u56de\u3002<\/li>\n<li>\u8868\u793a\u5411\u54ea\u4e2a\u5957\u63a5\u5b57\u53d1\u9001\u6570\u636e\u3002<\/li>\n<\/ul>\n<\/li>\n<li>buf:\n<ul>\n<li>\u6307\u5411\u8981\u53d1\u9001\u6570\u636e\u7684\u7f13\u51b2\u533a\u7684\u6307\u9488\u3002<\/li>\n<li>\u7f13\u51b2\u533a\u4e2d\u7684\u6570\u636e\u5c06\u88ab\u53d1\u9001\u5230\u76ee\u6807\u5957\u63a5\u5b57\u3002<\/li>\n<\/ul>\n<\/li>\n<li>len:\n<ul>\n<li>\u6307\u5b9a\u8981\u53d1\u9001\u7684\u6570\u636e\u957f\u5ea6&#xff08;\u4ee5\u5b57\u8282\u4e3a\u5355\u4f4d&#xff09;\u3002<\/li>\n<li>\u8868\u793a\u4ece buf \u4e2d\u6700\u591a\u53d1\u9001\u591a\u5c11\u5b57\u8282\u7684\u6570\u636e\u3002<\/li>\n<\/ul>\n<\/li>\n<li>flags:\n<ul>\n<li>\u63a7\u5236\u53d1\u9001\u884c\u4e3a\u7684\u6807\u5fd7&#xff0c;\u53ef\u4ee5\u662f\u4ee5\u4e0b\u503c\u7684\u7ec4\u5408&#xff1a;\n<ul>\n<li>0&#xff1a;\u9ed8\u8ba4\u884c\u4e3a\u3002<\/li>\n<li>MSG_DONTWAIT&#xff1a;\u975e\u963b\u585e\u6a21\u5f0f&#xff0c;\u5982\u679c\u65e0\u6cd5\u7acb\u5373\u53d1\u9001\u6570\u636e&#xff0c;\u7acb\u5373\u8fd4\u56de\u3002<\/li>\n<li>MSG_OOB&#xff1a;\u53d1\u9001\u5e26\u5916\u6570\u636e&#xff08;\u4ec5\u9002\u7528\u4e8e\u652f\u6301\u5e26\u5916\u6570\u636e\u7684\u534f\u8bae&#xff0c;\u5982 TCP&#xff09;\u3002<\/li>\n<li>MSG_NOSIGNAL&#xff1a;\u963b\u6b62\u53d1\u9001\u8fc7\u7a0b\u4e2d\u4ea7\u751f SIGPIPE \u4fe1\u53f7\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<p>\u8fd4\u56de\u503c<\/p>\n<ul>\n<li>\u6210\u529f:\n<ul>\n<li>\u8fd4\u56de\u5b9e\u9645\u53d1\u9001\u7684\u5b57\u8282\u6570&#xff08;ssize_t \u7c7b\u578b&#xff09;\u3002<\/li>\n<li>\u8fd4\u56de\u503c\u53ef\u80fd\u5c0f\u4e8e len&#xff0c;\u8868\u793a\u90e8\u5206\u6570\u636e\u5df2\u6210\u529f\u53d1\u9001\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u5931\u8d25:\n<ul>\n<li>\u8fd4\u56de-1&#xff0c;\u5e76\u8bbe\u7f6eerrno\u4ee5\u6307\u793a\u9519\u8bef\u539f\u56e0\u3002\u4f8b\u5982&#xff1a;\n<ul>\n<li>EAGAIN \u6216 EWOULDBLOCK&#xff1a;\u5728\u975e\u963b\u585e\u6a21\u5f0f\u4e0b&#xff0c;\u53d1\u9001\u7f13\u51b2\u533a\u5df2\u6ee1\u3002<\/li>\n<li>EBADF&#xff1a;sockfd \u4e0d\u662f\u6709\u6548\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u3002<\/li>\n<li>ECONNRESET&#xff1a;\u8fde\u63a5\u88ab\u5bf9\u7aef\u91cd\u7f6e\u3002<\/li>\n<li>ENOTCONN&#xff1a;\u5957\u63a5\u5b57\u672a\u8fde\u63a5\u3002<\/li>\n<li>EPIPE&#xff1a;\u5bf9\u7aef\u5df2\u5173\u95ed\u8fde\u63a5\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr \/>\n<ul>\n<li>   <span class=\"token keyword\">int<\/span> <span class=\"token function\">setsockopt<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> sockfd<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">int<\/span> level<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">int<\/span> optname<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">const<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token operator\">*<\/span>optval<span class=\"token punctuation\">,<\/span> socklen_t optlen<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n<p>\u53c2\u6570<\/p>\n<li>sockfd:\n<ul>\n<li>\u5957\u63a5\u5b57\u6587\u4ef6\u63cf\u8ff0\u7b26&#xff0c;\u7531 socket() \u6216 accept() \u8fd4\u56de\u3002<\/li>\n<li>\u8868\u793a\u8981\u8bbe\u7f6e\u9009\u9879\u7684\u5957\u63a5\u5b57\u3002<\/li>\n<\/ul>\n<\/li>\n<li>level:\n<ul>\n<li>\u6307\u5b9a\u9009\u9879\u7684\u534f\u8bae\u5c42\u7ea7\u3002<\/li>\n<li>\u5e38\u89c1\u503c&#xff1a;\n<ul>\n<li>SOL_SOCKET&#xff1a;\u901a\u7528\u5957\u63a5\u5b57\u9009\u9879\u3002<\/li>\n<li>IPPROTO_TCP&#xff1a;TCP \u534f\u8bae\u9009\u9879\u3002<\/li>\n<li>IPPROTO_IP&#xff1a;IPv4 \u534f\u8bae\u9009\u9879\u3002<\/li>\n<li>IPPROTO_IPV6&#xff1a;IPv6 \u534f\u8bae\u9009\u9879\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>optname:\n<ul>\n<li>\u6307\u5b9a\u8981\u8bbe\u7f6e\u7684\u9009\u9879\u540d\u79f0\u3002<\/li>\n<li>\u5e38\u89c1\u503c&#xff08;\u53d6\u51b3\u4e8elevel\u7684\u503c&#xff09;&#xff1a;\n<ul>\n<li>SOL_SOCKET\u9009\u9879&#xff1a;\n<ul>\n<li>SO_REUSEADDR&#xff1a;\u5141\u8bb8\u91cd\u7528\u672c\u5730\u5730\u5740\u3002<\/li>\n<li>SO_KEEPALIVE&#xff1a;\u542f\u7528 TCP \u4fdd\u6d3b\u673a\u5236\u3002<\/li>\n<li>SO_RCVBUF&#xff1a;\u63a5\u6536\u7f13\u51b2\u533a\u5927\u5c0f\u3002<\/li>\n<li>SO_SNDBUF&#xff1a;\u53d1\u9001\u7f13\u51b2\u533a\u5927\u5c0f\u3002<\/li>\n<\/ul>\n<\/li>\n<li>IPPROTO_TCP\u9009\u9879&#xff1a;\n<ul>\n<li>TCP_NODELAY&#xff1a;\u7981\u7528 Nagle \u7b97\u6cd5&#xff08;\u51cf\u5c11\u5ef6\u8fdf&#xff09;\u3002<\/li>\n<\/ul>\n<\/li>\n<li>IPPROTO_IP\u6216IPPROTO_IPV6\u9009\u9879&#xff1a;\n<ul>\n<li>IP_TTL&#xff1a;\u8bbe\u7f6e IPv4 \u7684 TTL \u503c\u3002<\/li>\n<li>IPV6_UNICAST_HOPS&#xff1a;\u8bbe\u7f6e IPv6 \u7684\u8df3\u6570\u9650\u5236\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>optval:\n<ul>\n<li>\u6307\u5411\u5305\u542b\u9009\u9879\u503c\u7684\u7f13\u51b2\u533a\u7684\u6307\u9488\u3002<\/li>\n<li>\u4f8b\u5982&#xff0c;\u82e5\u8bbe\u7f6e SO_REUSEADDR&#xff0c;optval \u901a\u5e38\u6307\u5411\u4e00\u4e2a int \u7c7b\u578b\u7684\u53d8\u91cf&#xff0c;\u5176\u503c\u4e3a 1&#xff08;\u542f\u7528&#xff09;\u6216 0&#xff08;\u7981\u7528&#xff09;\u3002<\/li>\n<\/ul>\n<\/li>\n<li>optlen:\n<ul>\n<li>\u6307\u5b9a optval \u7f13\u51b2\u533a\u7684\u5927\u5c0f&#xff08;\u4ee5\u5b57\u8282\u4e3a\u5355\u4f4d&#xff09;\u3002<\/li>\n<li>\u901a\u5e38\u4e3a sizeof(int)&#xff0c;\u4f46\u5177\u4f53\u53d6\u51b3\u4e8e\u9009\u9879\u7684\u7c7b\u578b\u3002<\/li>\n<\/ul>\n<\/li>\n<p>\u8fd4\u56de\u503c<\/p>\n<ul>\n<li>\u6210\u529f:\n<ul>\n<li>\u8fd4\u56de 0&#xff0c;\u8868\u793a\u9009\u9879\u8bbe\u7f6e\u6210\u529f\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u5931\u8d25:\n<ul>\n<li>\u8fd4\u56de-1&#xff0c;\u5e76\u8bbe\u7f6eerrno\u4ee5\u6307\u793a\u9519\u8bef\u539f\u56e0\u3002\u4f8b\u5982&#xff1a;\n<ul>\n<li>EBADF&#xff1a;sockfd \u4e0d\u662f\u6709\u6548\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u3002<\/li>\n<li>EINVAL&#xff1a;\u65e0\u6548\u7684\u9009\u9879\u6216\u53c2\u6570\u3002<\/li>\n<li>ENOPROTOOPT&#xff1a;\u6307\u5b9a\u7684\u9009\u9879\u5728\u6307\u5b9a\u7684\u534f\u8bae\u4e2d\u4e0d\u53ef\u7528\u3002<\/li>\n<li>ENOTSOCK&#xff1a;sockfd \u4e0d\u662f\u5957\u63a5\u5b57\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr \/>\n<ul>\n<li>   <span class=\"token keyword\">int<\/span> <span class=\"token function\">fcntl<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> fd<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">int<\/span> cmd<span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span> <span class=\"token comment\">\/* arg *\/<\/span> <span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n<p>\u53c2\u6570<\/p>\n<li>fd:\n<ul>\n<li>\u6587\u4ef6\u63cf\u8ff0\u7b26&#xff0c;\u8868\u793a\u8981\u64cd\u4f5c\u7684\u6587\u4ef6\u6216\u5957\u63a5\u5b57\u3002<\/li>\n<li>\u7531\u7cfb\u7edf\u8c03\u7528&#xff08;\u5982 open() \u6216 socket()&#xff09;\u8fd4\u56de\u3002<\/li>\n<\/ul>\n<\/li>\n<li>cmd:\n<ul>\n<li>\u6307\u5b9a\u8981\u6267\u884c\u7684\u64cd\u4f5c\u3002<\/li>\n<li>\u5e38\u89c1\u503c\u5305\u62ec&#xff1a;\n<ul>\n<li>F_DUPFD&#xff1a;\u590d\u5236\u6587\u4ef6\u63cf\u8ff0\u7b26&#xff0c;\u8fd4\u56de\u4e00\u4e2a\u65b0\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26&#xff0c;\u503c\u5927\u4e8e\u6216\u7b49\u4e8e arg\u3002<\/li>\n<li>F_GETFD&#xff1a;\u83b7\u53d6\u6587\u4ef6\u63cf\u8ff0\u7b26\u6807\u5fd7&#xff08;\u5982 FD_CLOEXEC&#xff09;\u3002<\/li>\n<li>F_SETFD&#xff1a;\u8bbe\u7f6e\u6587\u4ef6\u63cf\u8ff0\u7b26\u6807\u5fd7\u3002<\/li>\n<li>F_GETFL&#xff1a;\u83b7\u53d6\u6587\u4ef6\u72b6\u6001\u6807\u5fd7&#xff08;\u5982\u662f\u5426\u4e3a\u975e\u963b\u585e\u6a21\u5f0f&#xff09;\u3002<\/li>\n<li>F_SETFL&#xff1a;\u8bbe\u7f6e\u6587\u4ef6\u72b6\u6001\u6807\u5fd7&#xff08;\u5982\u8bbe\u7f6e\u975e\u963b\u585e\u6a21\u5f0f O_NONBLOCK&#xff09;\u3002<\/li>\n<li>F_GETOWN&#xff1a;\u83b7\u53d6\u6587\u4ef6\u63cf\u8ff0\u7b26\u7684\u6240\u6709\u8005&#xff08;\u7528\u4e8e\u5f02\u6b65 I\/O \u6216\u4fe1\u53f7\u9a71\u52a8 I\/O&#xff09;\u3002<\/li>\n<li>F_SETOWN&#xff1a;\u8bbe\u7f6e\u6587\u4ef6\u63cf\u8ff0\u7b26\u7684\u6240\u6709\u8005\u3002<\/li>\n<li>F_GETLK&#xff1a;\u83b7\u53d6\u6587\u4ef6\u9501\u72b6\u6001\u3002<\/li>\n<li>F_SETLK&#xff1a;\u8bbe\u7f6e\u6587\u4ef6\u9501&#xff08;\u975e\u963b\u585e&#xff09;\u3002<\/li>\n<li>F_SETLKW&#xff1a;\u8bbe\u7f6e\u6587\u4ef6\u9501&#xff08;\u963b\u585e&#xff09;\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>&#8230; \/\\\\* arg \\\\*\/:\n<ul>\n<li>\u53ef\u9009\u53c2\u6570&#xff0c;\u53d6\u51b3\u4e8e cmd \u7684\u503c\u3002<\/li>\n<li>\u4f8b\u5982&#xff1a;\n<ul>\n<li>\u5bf9\u4e8e F_DUPFD&#xff0c;arg \u662f\u4e00\u4e2a\u6574\u6570&#xff0c;\u8868\u793a\u65b0\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u7684\u6700\u5c0f\u503c\u3002<\/li>\n<li>\u5bf9\u4e8e F_SETFD \u6216 F_SETFL&#xff0c;arg \u662f\u4e00\u4e2a\u6574\u6570&#xff0c;\u8868\u793a\u8981\u8bbe\u7f6e\u7684\u6807\u5fd7\u3002<\/li>\n<li>\u5bf9\u4e8e\u6587\u4ef6\u9501\u64cd\u4f5c&#xff08;\u5982 F_SETLK \u6216 F_SETLKW&#xff09;&#xff0c;arg \u662f\u6307\u5411 struct flock \u7684\u6307\u9488\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<p>\u8fd4\u56de\u503c<\/p>\n<ul>\n<li>\u6210\u529f:\n<ul>\n<li>\u8fd4\u56de\u503c\u53d6\u51b3\u4e8ecmd\u7684\u5177\u4f53\u64cd\u4f5c\u3002\u4f8b\u5982&#xff1a;\n<ul>\n<li>\u5bf9\u4e8e F_DUPFD&#xff0c;\u8fd4\u56de\u65b0\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u3002<\/li>\n<li>\u5bf9\u4e8e F_GETFD \u6216 F_GETFL&#xff0c;\u8fd4\u56de\u6807\u5fd7\u503c\u3002<\/li>\n<li>\u5bf9\u4e8e\u5176\u4ed6\u64cd\u4f5c&#xff0c;\u901a\u5e38\u8fd4\u56de 0\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>\u5931\u8d25:\n<ul>\n<li>\u8fd4\u56de-1&#xff0c;\u5e76\u8bbe\u7f6eerrno\u4ee5\u6307\u793a\u9519\u8bef\u539f\u56e0\u3002\u4f8b\u5982&#xff1a;\n<ul>\n<li>EBADF&#xff1a;\u65e0\u6548\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u3002<\/li>\n<li>EINVAL&#xff1a;\u65e0\u6548\u7684\u547d\u4ee4\u6216\u53c2\u6570\u3002<\/li>\n<li>EACCES&#xff1a;\u6743\u9650\u4e0d\u8db3\u3002<\/li>\n<li>EAGAIN&#xff1a;\u64cd\u4f5c\u88ab\u963b\u585e&#xff08;\u5982\u6587\u4ef6\u9501\u64cd\u4f5c&#xff09;\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr \/>\n<h4>\u63a5\u53e3\u8bbe\u8ba1<\/h4>\n<p>\u529f\u80fd\u63a5\u53e3\u5206\u4e3a\u5bf9\u5916\u63a5\u53e3\u548c\u5185\u90e8\u63a5\u53e3&#xff0c;\u5bf9\u5916\u63a5\u53e3\u57fa\u672c\u5c31\u662f\u8c03\u7528\u5185\u90e8\u63a5\u53e3\u8fdb\u884c\u529f\u80fd\u5b9e\u73b0<\/p>\n<p>\u5bf9\u5916\u63a5\u53e3<\/p>\n<ul>\n<li>\u521b\u5efa\u5ba2\u6237\u7aef\u63a5\u53e3&#xff08;\u5ba2\u6237\u7aef&#xff09;<\/li>\n<li>\u521b\u5efa\u670d\u52a1\u7aef\u63a5\u53e3&#xff08;\u670d\u52a1\u7aef&#xff09;<\/li>\n<li>\u83b7\u53d6\u65b0\u8fde\u63a5\u63a5\u53e3&#xff08;\u670d\u52a1\u7aef&#xff09;<\/li>\n<li>\u5173\u95ed\u670d\u52a1\u7aef\u63a5\u53e3&#xff08;\u5ba2\u6237\u7aef\u3001\u670d\u52a1\u7aef&#xff09;<\/li>\n<li>\u63a5\u6536\u6570\u636e\u5bf9\u5916\u63a5\u53e3&#xff08;\u5ba2\u6237\u7aef\u3001\u670d\u52a1\u7aef&#xff09;<\/li>\n<li>\u53d1\u9001\u6570\u636e\u5bf9\u5916\u63a5\u53e3&#xff08;\u5ba2\u6237\u7aef\u3001\u670d\u52a1\u7aef&#xff09;<\/li>\n<li>\u83b7\u53d6\u5957\u63a5\u5b57\u63a5\u53e3&#xff08;\u5ba2\u6237\u7aef\u3001\u670d\u52a1\u7aef&#xff09;<\/li>\n<\/ul>\n<p> <span class=\"token comment\">\/\/ \u83b7\u53d6\u5957\u63a5\u5b57<\/span><br \/>\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">GetFd<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u63a5\u6536\u6570\u636e<\/span><br \/>\nssize_t <span class=\"token function\">Recv<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span> <span class=\"token operator\">*<\/span>buf<span class=\"token punctuation\">,<\/span> size_t len<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">bool<\/span> non_block <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u53d1\u9001\u6570\u636e<\/span><br \/>\nssize_t <span class=\"token function\">Send<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token operator\">*<\/span>buf<span class=\"token punctuation\">,<\/span> size_t len<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">bool<\/span> non_block <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u670d\u52a1\u5668\u83b7\u53d6\u65b0\u8fde\u63a5<\/span><br \/>\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">Accept<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u5173\u95ed\u5957\u63a5\u5b57<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">Close<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u521b\u5efa\u670d\u52a1\u7aef\u8fde\u63a5<\/span><br \/>\n<span class=\"token keyword\">bool<\/span> <span class=\"token function\">CreateServer<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> <span class=\"token keyword\">uint16_t<\/span> port<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">const<\/span> std<span class=\"token operator\">::<\/span>string <span class=\"token operator\">&amp;<\/span>ip <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;0.0.0.0&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">int<\/span> flag <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u521b\u5efa\u5ba2\u6237\u7aef\u8fde\u63a5<\/span><br \/>\n<span class=\"token keyword\">bool<\/span> <span class=\"token function\">CreateClient<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> <span class=\"token keyword\">uint16_t<\/span> port<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">const<\/span> std<span class=\"token operator\">::<\/span>string <span class=\"token operator\">&amp;<\/span>ip<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u5185\u90e8\u63a5\u53e3<\/p>\n<ul>\n<li>\u521b\u5efa\u5957\u63a5\u5b57\u63a5\u53e3&#xff08;\u5ba2\u6237\u7aef\u3001\u670d\u52a1\u7aef&#xff09;<\/li>\n<li>\u7ed1\u5b9a\u5730\u5740\u7aef\u53e3\u4fe1\u606f\u63a5\u53e3&#xff08;\u670d\u52a1\u7aef&#xff09;<\/li>\n<li>\u76d1\u542c\u63a5\u53e3&#xff08;\u670d\u52a1\u7aef&#xff09;<\/li>\n<li>\u53d1\u8d77\u8fde\u63a5\u63a5\u53e3&#xff08;\u5ba2\u6237\u7aef&#xff09;<\/li>\n<li>\u63a5\u6536\u6570\u636e\u5185\u90e8\u63a5\u53e3&#xff08;\u5ba2\u6237\u7aef\u3001\u670d\u52a1\u7aef&#xff09;<\/li>\n<li>\u53d1\u9001\u6570\u636e\u5185\u90e8\u63a5\u53e3&#xff08;\u5ba2\u6237\u7aef\u3001\u670d\u52a1\u7aef&#xff09;<\/li>\n<li>\u8bbe\u7f6e\u5957\u63a5\u5b57\u9009\u9879\u63a5\u53e3\u2014\u2014\u5f00\u542f\u5730\u5740\u7aef\u53e3\u91cd\u7528\u9009\u9879&#xff08;\u670d\u52a1\u7aef&#xff09;<\/li>\n<li>\u8bbe\u7f6e\u5957\u63a5\u5b57\u5c5e\u6027\u63a5\u53e3\u2014\u2014\u8bbe\u7f6e\u4e3a\u975e\u963b\u585e&#xff08;\u670d\u52a1\u7aef&#xff09;<\/li>\n<\/ul>\n<p> <span class=\"token comment\">\/\/ \u521b\u5efa\u5957\u63a5\u5b57<\/span><br \/>\n<span class=\"token keyword\">bool<\/span> <span class=\"token function\">CreateSocket<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u7ed1\u5b9a\u5730\u5740\u7aef\u53e3\u4fe1\u606f<\/span><br \/>\n<span class=\"token keyword\">bool<\/span> <span class=\"token function\">Bind<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> std<span class=\"token operator\">::<\/span>string <span class=\"token operator\">&amp;<\/span>ip<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">uint16_t<\/span> port<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u76d1\u542c<\/span><br \/>\n<span class=\"token keyword\">bool<\/span> <span class=\"token function\">Listen<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> <span class=\"token keyword\">int<\/span> backlog <span class=\"token operator\">&#061;<\/span> MAX_LISTEN<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u5ba2\u6237\u7aef\u53d1\u8d77\u8fde\u63a5<\/span><br \/>\n<span class=\"token keyword\">bool<\/span> <span class=\"token function\">Connect<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> std<span class=\"token operator\">::<\/span>string <span class=\"token operator\">&amp;<\/span>ip<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">const<\/span> <span class=\"token keyword\">uint16_t<\/span> port<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u63a5\u6536\u6570\u636e<\/span><br \/>\nssize_t <span class=\"token function\">_Recv<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span> <span class=\"token operator\">*<\/span>buf<span class=\"token punctuation\">,<\/span> size_t len<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">int<\/span> flag <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u53d1\u9001\u6570\u636e<\/span><br \/>\nssize_t <span class=\"token function\">_Send<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token operator\">*<\/span>buf<span class=\"token punctuation\">,<\/span> size_t len<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">int<\/span> flag <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u8bbe\u7f6e\u5957\u63a5\u5b57\u9009\u9879\u2014\u2014\u5f00\u542f\u5730\u5740\u7aef\u53e3\u91cd\u7528\u9009\u9879<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">SetAddrReuse<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u8bbe\u7f6e\u5957\u63a5\u5b57\u5c5e\u6027\u2014\u2014\u8bbe\u7f6e\u4e3a\u975e\u963b\u585e<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">SetNonBlock<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<h4>\u529f\u80fd\u5b9e\u73b0<\/h4>\n<p>\u8fd9\u4e2a\u6a21\u5757\u7684\u529f\u80fd\u5b9e\u73b0\u6ca1\u591a\u5c11\u5185\u5bb9\u9700\u8981\u5206\u6790\u7684&#xff0c;\u53ea\u9700\u80fd\u628a\u4e0a\u9762\u7684Linux\u63d0\u4f9b\u7684\u63a5\u53e3\u638c\u63e1\u4e86\u5c31\u80fd\u5b9e\u73b0\u4e0a\u9762\u8fd9\u51e0\u4e2a\u529f\u80fd<\/p>\n<p>\u9700\u8981\u6ce8\u610f\u7684\u662f\u5728\u53d1\u9001\u6570\u636e\u65f6&#xff0c;\u5982\u679c\u5bf9\u65b9\u5173\u95ed\u4e86\u8fde\u63a5&#xff0c;\u90a3\u4e48\u4f60\u53d1\u9001\u6570\u636e\u7684\u8fd4\u56de\u503c\u4f1a\u4e3a0&#xff0c;\u8fd9\u91cc\u505a\u4e2a\u7279\u6b8a\u5904\u7406&#xff0c;\u5982\u679c\u8fd4\u56de\u4e3a0&#xff0c;\u5219\u7ed9\u63a5\u53e3\u4f7f\u7528\u8005\u8fd4\u56de-1&#xff0c;\u5176\u4ed6\u51e0\u79cd\u7279\u6b8a\u9519\u8bef&#xff0c;\u6bd4\u5982\u88ab\u4fe1\u53f7\u6253\u65ad\u6216\u8005\u5185\u6838\u7f13\u51b2\u533a\u4e3a\u7a7a&#xff0c;\u5219\u8fd4\u56de0\u3002\u8fd9\u6837\u5904\u7406\u540e\u9762\u7684\u6a21\u5757\u8bbe\u8ba1\u4e2d\u4f1a\u7528\u5230\u4f9d\u6b21\u4e3a\u4f9d\u636e\u6765\u91ca\u653e\u8fde\u63a5\u3002<\/p>\n<p>\u521b\u5efa\u670d\u52a1\u7aef\u7684\u8fc7\u7a0b\u5c31\u4e94\u6b65&#xff0c;\u7b2c\u4e00\u6b65\u521b\u5efa\u5957\u63a5\u5b57&#xff0c;\u7b2c\u4e8c\u6b65\u5224\u65ad\u662f\u5426\u6253\u5f00\u5957\u63a5\u5b57\u975e\u963b\u585e\u5c5e\u6027&#xff0c;\u7b2c\u4e09\u6b65\u7ed1\u5b9a\u5730\u5740\u7aef\u53e3\u4fe1\u606f&#xff0c;\u7b2c\u56db\u6b65\u76d1\u542c\u5957\u63a5\u5b57&#xff0c;\u7b2c\u4e94\u6b65\u5f00\u542f\u5730\u5740\u7aef\u53e3\u91cd\u7528\u5c5e\u6027<\/p>\n<p>\u521b\u5efa\u5ba2\u6237\u7aef\u5c31\u4e24\u6b65&#xff0c;\u7b2c\u4e00\u6b65\u521b\u5efa\u5957\u63a5\u5b57&#xff0c;\u7b2c\u4e8c\u6b65\u5411\u670d\u52a1\u7aef\u53d1\u8d77\u8fde\u63a5<\/p>\n<p>\u5177\u4f53\u4ee3\u7801\u5b9e\u73b0\u8bf7\u770b\u6587\u7ae0\u6700\u672b\u5c3e\u7684\u4ee3\u7801\u90e8\u5206<\/p>\n<h4>\u6d4b\u8bd5<\/h4>\n<p>\u6d4b\u8bd5\u4ee3\u7801<\/p>\n<p><span class=\"token comment\">\/\/ \u670d\u52a1\u7aef<\/span><br \/>\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    ns_socket<span class=\"token operator\">::<\/span>Socket svr_socket<span class=\"token punctuation\">;<\/span><br \/>\n    svr_socket<span class=\"token punctuation\">.<\/span><span class=\"token function\">CreateServer<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">8081<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;0.0.0.0&#034;<\/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 comment\">\/\/ \u4e0d\u8bbe\u7f6e\u975e\u963b\u585e<\/span><br \/>\n    <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">int<\/span> newsockfd <span class=\"token operator\">&#061;<\/span> svr_socket<span class=\"token punctuation\">.<\/span><span class=\"token function\">Accept<\/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>newsockfd <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\">LOG<\/span><span class=\"token punctuation\">(<\/span>DEBUG<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;accept failed&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token operator\">&#8211;<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        ns_socket<span class=\"token operator\">::<\/span>Socket <span class=\"token function\">comm_socket<\/span><span class=\"token punctuation\">(<\/span>newsockfd<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">char<\/span> buffer<span class=\"token punctuation\">[<\/span><span class=\"token number\">1024<\/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> comm_socket<span class=\"token punctuation\">.<\/span><span class=\"token function\">Recv<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>buffer<span class=\"token punctuation\">,<\/span> <span class=\"token number\">1023<\/span><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\">LOG<\/span><span class=\"token punctuation\">(<\/span>DEBUG<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;recv failed&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            comm_socket<span class=\"token punctuation\">.<\/span><span class=\"token function\">Close<\/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 function\">LOG<\/span><span class=\"token punctuation\">(<\/span>NORMAL<span class=\"token punctuation\">,<\/span> buffer<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        comm_socket<span class=\"token punctuation\">.<\/span><span class=\"token function\">Send<\/span><span class=\"token punctuation\">(<\/span>buffer<span class=\"token punctuation\">,<\/span> ret<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> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token comment\">\/\/ \u5ba2\u6237\u7aef<\/span><br \/>\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    ns_socket<span class=\"token operator\">::<\/span>Socket cli_socket<span class=\"token punctuation\">;<\/span><br \/>\n    cli_socket<span class=\"token punctuation\">.<\/span><span class=\"token function\">CreateClient<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">8081<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;127.0.0.1&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    std<span class=\"token operator\">::<\/span>string str <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;xiaomi su7ultra&#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    cli_socket<span class=\"token punctuation\">.<\/span><span class=\"token function\">Send<\/span><span class=\"token punctuation\">(<\/span>str<span class=\"token punctuation\">.<\/span><span class=\"token function\">c_str<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> str<span class=\"token punctuation\">.<\/span><span class=\"token function\">size<\/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\">char<\/span> buf<span class=\"token punctuation\">[<\/span><span class=\"token number\">1024<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    cli_socket<span class=\"token punctuation\">.<\/span><span class=\"token function\">Recv<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>buf<span class=\"token punctuation\">,<\/span> <span class=\"token number\">1023<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">LOG<\/span><span class=\"token punctuation\">(<\/span>NORMAL<span class=\"token punctuation\">,<\/span> buf<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u6d4b\u8bd5\u7ed3\u679c<\/p>\n<p><span class=\"token comment\">\/\/ \u670d\u52a1\u7aef<\/span><br \/>\n<span class=\"token punctuation\">.<\/span><span class=\"token operator\">\/<\/span>Server<br \/>\n<span class=\"token punctuation\">[<\/span>Level# NORMAL<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">[<\/span>time# <span class=\"token number\">2025<\/span><span class=\"token operator\">&#8211;<\/span><span class=\"token number\">04<\/span><span class=\"token operator\">&#8211;<\/span><span class=\"token number\">04<\/span> <span class=\"token number\">13<\/span><span class=\"token operator\">:<\/span><span class=\"token number\">55<\/span><span class=\"token operator\">:<\/span><span class=\"token number\">47<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">[<\/span>File# test_socket_server<span class=\"token punctuation\">.<\/span>cc<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">[<\/span>Line# <span class=\"token number\">23<\/span><span class=\"token punctuation\">]<\/span>Message# xiaomi su7ultra<br \/>\n<span class=\"token comment\">\/\/ \u5ba2\u6237\u7aef<\/span><br \/>\n<span class=\"token punctuation\">.<\/span><span class=\"token operator\">\/<\/span>Client<br \/>\n<span class=\"token punctuation\">[<\/span>Level# NORMAL<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">[<\/span>time# <span class=\"token number\">2025<\/span><span class=\"token operator\">&#8211;<\/span><span class=\"token number\">04<\/span><span class=\"token operator\">&#8211;<\/span><span class=\"token number\">04<\/span> <span class=\"token number\">13<\/span><span class=\"token operator\">:<\/span><span class=\"token number\">55<\/span><span class=\"token operator\">:<\/span><span class=\"token number\">47<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">[<\/span>File# test_socket_client<span class=\"token punctuation\">.<\/span>cc<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">[<\/span>Line# <span class=\"token number\">11<\/span><span class=\"token punctuation\">]<\/span>Message# xiaomi su7ultra<\/p>\n<hr \/>\n<h3>5. \u5b8c\u6574\u4ee3\u7801<\/h3>\n<h4>\u7f13\u51b2\u533a\u6a21\u5757\u4ee3\u7801<\/h4>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">pragma<\/span> <span class=\"token expression\">once<\/span><\/span><\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;iostream&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;vector&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;algorithm&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;cstring&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&#034;log.hpp&#034;<\/span><\/span><\/p>\n<p><span class=\"token keyword\">namespace<\/span> ns_buffer<br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">BUFFER_DEFAULT_CAPACITY<\/span> <span class=\"token expression\"><span class=\"token number\">1024<\/span><\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">Expansion_Factor<\/span> <span class=\"token expression\"><span class=\"token number\">1.5<\/span><\/span><\/span><br \/>\n    <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Buffer<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">private<\/span><span class=\"token operator\">:<\/span><br \/>\n        std<span class=\"token operator\">::<\/span>vector<span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">char<\/span><span class=\"token operator\">&gt;<\/span> _buffer<span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u6570\u7ec4\u5145\u5f53\u7f13\u51b2\u533a<\/span><br \/>\n        <span class=\"token keyword\">uint64_t<\/span> _write_index<span class=\"token punctuation\">;<\/span>     <span class=\"token comment\">\/\/ \u53ef\u5199\u8d77\u59cb\u6307\u9488<\/span><br \/>\n        <span class=\"token keyword\">uint64_t<\/span> _read_index<span class=\"token punctuation\">;<\/span>      <span class=\"token comment\">\/\/ \u53ef\u8bfb\u8d77\u59cb\u6307\u9488<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span><span class=\"token operator\">:<\/span><\/p>\n<p>        <span class=\"token function\">Buffer<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token operator\">:<\/span> <span class=\"token function\">_write_index<\/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\">_read_index<\/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\">_buffer<\/span><span class=\"token punctuation\">(<\/span>BUFFER_DEFAULT_CAPACITY<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token function\">Buffer<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> Buffer <span class=\"token operator\">&amp;<\/span>b<span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token operator\">:<\/span> <span class=\"token function\">_write_index<\/span><span class=\"token punctuation\">(<\/span>b<span class=\"token punctuation\">.<\/span>_write_index<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token function\">_read_index<\/span><span class=\"token punctuation\">(<\/span>b<span class=\"token punctuation\">.<\/span>_read_index<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token function\">_buffer<\/span><span class=\"token punctuation\">(<\/span>b<span class=\"token punctuation\">.<\/span>_buffer<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        Buffer <span class=\"token operator\">&amp;<\/span><span class=\"token keyword\">operator<\/span><span class=\"token operator\">&#061;<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> Buffer <span class=\"token operator\">&amp;<\/span>b<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            _buffer <span class=\"token operator\">&#061;<\/span> b<span class=\"token punctuation\">.<\/span>_buffer<span class=\"token punctuation\">;<\/span><br \/>\n            _write_index <span class=\"token operator\">&#061;<\/span> b<span class=\"token punctuation\">.<\/span>_write_index<span class=\"token punctuation\">;<\/span><br \/>\n            _read_index <span class=\"token operator\">&#061;<\/span> b<span class=\"token punctuation\">.<\/span>_read_index<span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token operator\">*<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span><span class=\"token operator\">:<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u83b7\u53d6\u53ef\u8bfb\u6570\u636e\u5927\u5c0f<\/span><br \/>\n        <span class=\"token keyword\">inline<\/span> <span class=\"token keyword\">uint64_t<\/span> <span class=\"token function\">GetReadSize<\/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> _write_index <span class=\"token operator\">&#8211;<\/span> _read_index<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u5224\u65ad\u7f13\u51b2\u533a\u4e2d\u662f\u5426\u6709\u6570\u636e\u53ef\u8bfb<\/span><br \/>\n        <span class=\"token keyword\">bool<\/span> <span class=\"token function\">AbleRead<\/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> <span class=\"token punctuation\">(<\/span><span class=\"token function\">GetReadSize<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&gt;<\/span> <span class=\"token number\">0<\/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\">\/\/ \u5199\u5165\u6570\u636e&#xff08;\u5bf9\u5916\u63a5\u53e3&#xff09;<\/span><br \/>\n        <span class=\"token keyword\">void<\/span> <span class=\"token function\">Write<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token operator\">*<\/span>data<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">uint64_t<\/span> len<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>len <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><br \/>\n                <span class=\"token keyword\">return<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token function\">_Write<\/span><span class=\"token punctuation\">(<\/span>data<span class=\"token punctuation\">,<\/span> len<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 function\">Write<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> std<span class=\"token operator\">::<\/span>string <span class=\"token operator\">&amp;<\/span>str<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>str<span class=\"token punctuation\">.<\/span><span class=\"token function\">size<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><br \/>\n                <span class=\"token keyword\">return<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token function\">_Write<\/span><span class=\"token punctuation\">(<\/span>str<span class=\"token punctuation\">.<\/span><span class=\"token function\">c_str<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> str<span class=\"token punctuation\">.<\/span><span class=\"token function\">size<\/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 punctuation\">}<\/span><br \/>\n        <span class=\"token keyword\">void<\/span> <span class=\"token function\">Write<\/span><span class=\"token punctuation\">(<\/span>Buffer <span class=\"token operator\">&amp;<\/span>buff<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            std<span class=\"token operator\">::<\/span>string s<span class=\"token punctuation\">;<\/span><br \/>\n            buff<span class=\"token punctuation\">.<\/span><span class=\"token function\">Read<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>s<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token function\">Write<\/span><span class=\"token punctuation\">(<\/span>s<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u8bfb\u51fa\u6570\u636e&#xff08;\u5bf9\u5916\u63a5\u53e3&#xff09;<\/span><br \/>\n        <span class=\"token keyword\">void<\/span> <span class=\"token function\">Read<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span> <span class=\"token operator\">*<\/span>out<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">uint64_t<\/span> len <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/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>len <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><br \/>\n                len <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">GetReadSize<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>            <span class=\"token function\">_Read<\/span><span class=\"token punctuation\">(<\/span>out<span class=\"token punctuation\">,<\/span> len<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        std<span class=\"token operator\">::<\/span>string <span class=\"token function\">Read<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">uint64_t<\/span> len <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/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>len <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><br \/>\n                len <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">GetReadSize<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            std<span class=\"token operator\">::<\/span>string s<span class=\"token punctuation\">;<\/span><br \/>\n            s<span class=\"token punctuation\">.<\/span><span class=\"token function\">resize<\/span><span class=\"token punctuation\">(<\/span>len<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token function\">_Read<\/span><span class=\"token punctuation\">(<\/span>s<span class=\"token punctuation\">.<\/span><span class=\"token function\">data<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> len<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> s<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u83b7\u53d6\u4e00\u884c\u6570\u636e\u5373\u4ece\u53ef\u8bfb\u8d77\u59cb\u4f4d\u7f6e\u5230\u7b2c\u4e00\u4e2a&#039;\\\\n&#039;(\u8fd9\u91cc\u5305\u62ec&#039;\\\\n&#039;)&#xff08;\u5bf9\u5916\u63a5\u53e3&#xff09;<\/span><br \/>\n        <span class=\"token keyword\">void<\/span> <span class=\"token function\">GetLine<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span> <span class=\"token operator\">*<\/span>out<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">auto<\/span> crlfpos <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">GetCrlf<\/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>crlfpos <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token constant\">NULL<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token punctuation\">{<\/span><br \/>\n                out <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">nullptr<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token keyword\">return<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n            <span class=\"token function\">_Read<\/span><span class=\"token punctuation\">(<\/span>out<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">static_cast<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">char<\/span> <span class=\"token operator\">*<\/span><span class=\"token operator\">&gt;<\/span><span class=\"token punctuation\">(<\/span>crlfpos<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#8211;<\/span> <span class=\"token keyword\">static_cast<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">char<\/span> <span class=\"token operator\">*<\/span><span class=\"token operator\">&gt;<\/span><span class=\"token punctuation\">(<\/span><span class=\"token function\">GetReadAddr<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#043;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        std<span class=\"token operator\">::<\/span>string <span class=\"token function\">GetLine<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            std<span class=\"token operator\">::<\/span>string s<span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">auto<\/span> crlfpos <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">GetCrlf<\/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>crlfpos <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token constant\">NULL<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token punctuation\">{<\/span><br \/>\n                <span class=\"token keyword\">return<\/span> <span class=\"token string\">&#034;&#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n            <span class=\"token keyword\">uint64_t<\/span> len <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">static_cast<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">char<\/span> <span class=\"token operator\">*<\/span><span class=\"token operator\">&gt;<\/span><span class=\"token punctuation\">(<\/span>crlfpos<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#8211;<\/span> <span class=\"token keyword\">static_cast<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">char<\/span> <span class=\"token operator\">*<\/span><span class=\"token operator\">&gt;<\/span><span class=\"token punctuation\">(<\/span><span class=\"token function\">GetReadAddr<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#043;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            s<span class=\"token punctuation\">.<\/span><span class=\"token function\">resize<\/span><span class=\"token punctuation\">(<\/span>len<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>            <span class=\"token function\">_Read<\/span><span class=\"token punctuation\">(<\/span>s<span class=\"token punctuation\">.<\/span><span class=\"token function\">data<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> len<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> s<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u6e05\u7a7a\u7f13\u51b2\u533a<\/span><br \/>\n        <span class=\"token keyword\">void<\/span> <span class=\"token function\">Clear<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            _read_index <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            _write_index <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">private<\/span><span class=\"token operator\">:<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u83b7\u53d6\u7f13\u51b2\u533a\u8d77\u59cb\u5730\u5740<\/span><br \/>\n        <span class=\"token keyword\">inline<\/span> <span class=\"token keyword\">char<\/span> <span class=\"token operator\">*<\/span><span class=\"token function\">Begin<\/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> <span class=\"token operator\">&amp;<\/span><span class=\"token operator\">*<\/span>_buffer<span class=\"token punctuation\">.<\/span><span class=\"token function\">begin<\/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\">\/\/ \u83b7\u53d6\u53ef\u8bfb\u8d77\u59cb\u5730\u5740\u6307\u9488<\/span><br \/>\n        <span class=\"token keyword\">inline<\/span> <span class=\"token keyword\">char<\/span> <span class=\"token operator\">*<\/span><span class=\"token function\">GetWriteAddr<\/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> <span class=\"token function\">Begin<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#043;<\/span> _write_index<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u83b7\u53d6\u53ef\u5199\u8d77\u59cb\u5730\u5740\u6307\u9488<\/span><br \/>\n        <span class=\"token keyword\">inline<\/span> <span class=\"token keyword\">char<\/span> <span class=\"token operator\">*<\/span><span class=\"token function\">GetReadAddr<\/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> <span class=\"token function\">Begin<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#043;<\/span> _read_index<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u83b7\u53d6\u5f53\u524d\u6574\u4e2a\u7f13\u51b2\u533a\u4e2d\u53ef\u5199\u7a7a\u95f4\u5927\u5c0f\u5373\u7a7a\u95f2\u7a7a\u95f4&#xff0c;\u5305\u62ec\u53ef\u8bfb\u8d77\u59cb\u4f4d\u7f6e\u4e4b\u524d\u7684\u7a7a\u95f4\u548c\u53ef\u5199\u8d77\u59cb\u4f4d\u7f6e\u4ee5\u53ca\u4e4b\u540e\u7684\u4f4d\u7f6e<\/span><br \/>\n        <span class=\"token keyword\">inline<\/span> <span class=\"token keyword\">uint64_t<\/span> <span class=\"token function\">GetWriteSize<\/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> <span class=\"token function\">GetHeadEmptySize<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#043;<\/span> <span class=\"token function\">GetTailEmptySize<\/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\">\/\/ \u83b7\u53d6\u53ef\u8bfb\u8d77\u59cb\u4f4d\u7f6e\u4e4b\u524d\u7684\u7a7a\u95f4<\/span><br \/>\n        <span class=\"token keyword\">inline<\/span> <span class=\"token keyword\">uint64_t<\/span> <span class=\"token function\">GetHeadEmptySize<\/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> _read_index<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u83b7\u53d6\u53ef\u5199\u8d77\u59cb\u4f4d\u7f6e\u4ee5\u53ca\u4e4b\u540e\u7684\u4f4d\u7f6e<\/span><br \/>\n        <span class=\"token keyword\">inline<\/span> <span class=\"token keyword\">uint64_t<\/span> <span class=\"token function\">GetTailEmptySize<\/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> _buffer<span class=\"token punctuation\">.<\/span><span class=\"token function\">size<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#8211;<\/span> _write_index<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u79fb\u52a8\u53ef\u5199\u8d77\u59cb\u4f4d\u7f6e<\/span><br \/>\n        <span class=\"token keyword\">inline<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">MoveWritePos<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> <span class=\"token keyword\">uint64_t<\/span> len<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            _write_index <span class=\"token operator\">&#043;&#061;<\/span> len<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u79fb\u52a8\u53ef\u8bfb\u8d77\u59cb\u4f4d\u7f6e<\/span><br \/>\n        <span class=\"token keyword\">inline<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">MoveReadPos<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> <span class=\"token keyword\">uint64_t<\/span> len<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            _read_index <span class=\"token operator\">&#043;&#061;<\/span> len<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u786e\u4fdd\u7f13\u51b2\u533a\u80fd\u591f\u5bb9\u7eb3\u63a5\u4e0b\u6765\u8981\u5199\u5165\u7684\u6570\u636e&#xff0c;\u5982\u679c\u4e0d\u591f\u5219\u6269\u5bb9&#xff0c;\u7a7a\u95f4\u8db3\u591f\u5219\u9700\u6309\u7167\u4e24\u79cd\u60c5\u51b5\u6765\u5904\u7406<\/span><br \/>\n        <span class=\"token comment\">\/\/ 1. \u53ef\u5199\u8d77\u59cb\u4f4d\u7f6e\u4e4b\u540e\u7684\u7a7a\u95f4\u8db3\u591f\u5927\u76f4\u63a5\u5199\u5165<\/span><br \/>\n        <span class=\"token comment\">\/\/ 2. \u53ef\u5199\u8d77\u59cb\u4f4d\u7f6e\u4e4b\u540e\u7684\u7a7a\u95f4\u4e0d\u591f&#xff0c;\u4f46\u662f\u52a0\u4e0a\u53ef\u8bfb\u8d77\u59cb\u4f4d\u7f6e\u4e4b\u524d\u7684\u7a7a\u95f4\u5927\u5c0f\u8db3\u591f&#xff0c;\u5219\u5148\u5c06\u6570\u636e\u5f80\u524d\u79fb\u52a8\u5728\u5199\u5165<\/span><br \/>\n        <span class=\"token keyword\">void<\/span> <span class=\"token function\">EnableWriteSpaceEnough<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> <span class=\"token keyword\">uint64_t<\/span> len<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>len <span class=\"token operator\">&lt;&#061;<\/span> <span class=\"token function\">GetTailEmptySize<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n                <span class=\"token keyword\">return<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>            <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>len <span class=\"token operator\">&lt;&#061;<\/span> <span class=\"token function\">GetWriteSize<\/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                std<span class=\"token operator\">::<\/span><span class=\"token function\">copy<\/span><span class=\"token punctuation\">(<\/span><span class=\"token function\">GetReadAddr<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token function\">GetWriteAddr<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token function\">Begin<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                _write_index <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">GetReadSize<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                _read_index <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/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                _buffer<span class=\"token punctuation\">.<\/span><span class=\"token function\">resize<\/span><span class=\"token punctuation\">(<\/span>std<span class=\"token operator\">::<\/span><span class=\"token function\">max<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">uint64_t<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">(<\/span>Expansion_Factor <span class=\"token operator\">*<\/span> _buffer<span class=\"token punctuation\">.<\/span><span class=\"token function\">size<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> len <span class=\"token operator\">&#043;<\/span> _write_index<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><\/p>\n<p>        <span class=\"token comment\">\/\/ \u5199\u5165\u6570\u636e<\/span><br \/>\n        <span class=\"token keyword\">void<\/span> <span class=\"token function\">_Write<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token operator\">*<\/span>data<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">const<\/span> <span class=\"token keyword\">uint64_t<\/span> len<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>len <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><br \/>\n                <span class=\"token keyword\">return<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token function\">EnableWriteSpaceEnough<\/span><span class=\"token punctuation\">(<\/span>len<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            std<span class=\"token operator\">::<\/span><span class=\"token function\">copy<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">static_cast<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">const<\/span> <span class=\"token keyword\">char<\/span> <span class=\"token operator\">*<\/span><span class=\"token operator\">&gt;<\/span><span class=\"token punctuation\">(<\/span>data<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">static_cast<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">const<\/span> <span class=\"token keyword\">char<\/span> <span class=\"token operator\">*<\/span><span class=\"token operator\">&gt;<\/span><span class=\"token punctuation\">(<\/span>data<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#043;<\/span> len<span class=\"token punctuation\">,<\/span> <span class=\"token function\">GetWriteAddr<\/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 function\">MoveWritePos<\/span><span class=\"token punctuation\">(<\/span>len<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u8bfb\u51fa\u6570\u636e<\/span><br \/>\n        <span class=\"token keyword\">void<\/span> <span class=\"token function\">_Read<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span> <span class=\"token operator\">*<\/span>out<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">const<\/span> <span class=\"token keyword\">uint64_t<\/span> len<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>len <span class=\"token operator\">&gt;<\/span> <span class=\"token function\">GetReadSize<\/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 function\">LOG<\/span><span class=\"token punctuation\">(<\/span>FATAL<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;\u8bfb\u51fa\u6570\u636e\u5927\u5c0f\u5927\u4e8e\u53ef\u8bfb\u6570\u636e\u5927\u5c0f&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token keyword\">return<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n            <span class=\"token keyword\">auto<\/span> readaddr <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">GetReadAddr<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            std<span class=\"token operator\">::<\/span><span class=\"token function\">copy<\/span><span class=\"token punctuation\">(<\/span>readaddr<span class=\"token punctuation\">,<\/span> readaddr <span class=\"token operator\">&#043;<\/span> len<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">static_cast<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">char<\/span> <span class=\"token operator\">*<\/span><span class=\"token operator\">&gt;<\/span><span class=\"token punctuation\">(<\/span>out<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token function\">MoveReadPos<\/span><span class=\"token punctuation\">(<\/span>len<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u83b7\u53d6\u4ece\u53ef\u8bfb\u8d77\u59cb\u4f4d\u7f6e\u5f00\u59cb\u7684\u7b2c\u4e00\u4e2a&#039;\\\\n&#039;\u4f4d\u7f6e\u5730\u5740\u6307\u9488<\/span><br \/>\n        <span class=\"token keyword\">void<\/span> <span class=\"token operator\">*<\/span><span class=\"token function\">GetCrlf<\/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> std<span class=\"token operator\">::<\/span><span class=\"token function\">memchr<\/span><span class=\"token punctuation\">(<\/span><span class=\"token function\">GetReadAddr<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#039;\\\\n&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token function\">GetReadSize<\/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 punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span> <span class=\"token comment\">\/\/ namespace ns_buffer<\/span><\/p>\n<h4>\u5957\u63a5\u5b57\u6a21\u5757\u4ee3\u7801<\/h4>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;iostream&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;string&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;unistd.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;netinet\/in.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;arpa\/inet.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;fcntl.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;sys\/socket.h&gt;<\/span><\/span><\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&#034;log.hpp&#034;<\/span><\/span><\/p>\n<p><span class=\"token keyword\">namespace<\/span> ns_socket<br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">MAX_LISTEN<\/span> <span class=\"token expression\"><span class=\"token number\">1024<\/span><\/span><\/span><br \/>\n    <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Socket<\/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> _sockfd<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span><span class=\"token operator\">:<\/span><br \/>\n        <span class=\"token function\">Socket<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token operator\">:<\/span> <span class=\"token function\">_sockfd<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&#8211;<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token function\">Socket<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> <span class=\"token keyword\">int<\/span> sockfd<span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token operator\">:<\/span> <span class=\"token function\">_sockfd<\/span><span class=\"token punctuation\">(<\/span>sockfd<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token operator\">~<\/span><span class=\"token function\">Socket<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token function\">Close<\/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 keyword\">public<\/span><span class=\"token operator\">:<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u83b7\u53d6\u5957\u63a5\u5b57<\/span><br \/>\n        <span class=\"token keyword\">int<\/span> <span class=\"token function\">GetFd<\/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> _sockfd<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u63a5\u6536\u6570\u636e<\/span><br \/>\n        ssize_t <span class=\"token function\">Recv<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span> <span class=\"token operator\">*<\/span>buf<span class=\"token punctuation\">,<\/span> size_t len<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">bool<\/span> non_block <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> non_block <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token boolean\">false<\/span> <span class=\"token operator\">?<\/span> <span class=\"token function\">_Recv<\/span><span class=\"token punctuation\">(<\/span>buf<span class=\"token punctuation\">,<\/span> len<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">:<\/span> <span class=\"token function\">_Recv<\/span><span class=\"token punctuation\">(<\/span>buf<span class=\"token punctuation\">,<\/span> len<span class=\"token punctuation\">,<\/span> MSG_DONTWAIT<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u53d1\u9001\u6570\u636e<\/span><br \/>\n        ssize_t <span class=\"token function\">Send<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token operator\">*<\/span>buf<span class=\"token punctuation\">,<\/span> size_t len<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">bool<\/span> non_block <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">false<\/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>len <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><br \/>\n                <span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> non_block <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token boolean\">false<\/span> <span class=\"token operator\">?<\/span> <span class=\"token function\">_Send<\/span><span class=\"token punctuation\">(<\/span>buf<span class=\"token punctuation\">,<\/span> len<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">:<\/span> <span class=\"token function\">_Send<\/span><span class=\"token punctuation\">(<\/span>buf<span class=\"token punctuation\">,<\/span> len<span class=\"token punctuation\">,<\/span> MSG_DONTWAIT<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u670d\u52a1\u5668\u83b7\u53d6\u65b0\u8fde\u63a5<\/span><br \/>\n        <span class=\"token keyword\">int<\/span> <span class=\"token function\">Accept<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">int<\/span> newfd <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">accept<\/span><span class=\"token punctuation\">(<\/span>_sockfd<span class=\"token punctuation\">,<\/span> <span class=\"token constant\">NULL<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token constant\">NULL<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>newfd <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><br \/>\n                <span class=\"token function\">LOG<\/span><span class=\"token punctuation\">(<\/span>ERROR<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;Accept Failed&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> newfd<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u5173\u95ed\u5957\u63a5\u5b57<\/span><br \/>\n        <span class=\"token keyword\">void<\/span> <span class=\"token function\">Close<\/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>_sockfd <span class=\"token operator\">!&#061;<\/span> <span class=\"token operator\">&#8211;<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token punctuation\">{<\/span><br \/>\n                <span class=\"token function\">close<\/span><span class=\"token punctuation\">(<\/span>_sockfd<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                _sockfd <span class=\"token operator\">&#061;<\/span> <span class=\"token operator\">&#8211;<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u521b\u5efa\u670d\u52a1\u7aef\u8fde\u63a5<\/span><br \/>\n        <span class=\"token keyword\">bool<\/span> <span class=\"token function\">CreateServer<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> <span class=\"token keyword\">uint16_t<\/span> port<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">const<\/span> std<span class=\"token operator\">::<\/span>string <span class=\"token operator\">&amp;<\/span>ip <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;0.0.0.0&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">int<\/span> flag <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">1<\/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 function\">CreateSocket<\/span><span class=\"token punctuation\">(<\/span><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 keyword\">return<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>flag <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><br \/>\n                <span class=\"token function\">SetNonBlock<\/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><span class=\"token function\">Bind<\/span><span class=\"token punctuation\">(<\/span>ip<span class=\"token punctuation\">,<\/span> port<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 keyword\">return<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token function\">Listen<\/span><span class=\"token punctuation\">(<\/span><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 keyword\">return<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token function\">SetAddrReuse<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">true<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u521b\u5efa\u5ba2\u6237\u7aef\u8fde\u63a5<\/span><br \/>\n        <span class=\"token keyword\">bool<\/span> <span class=\"token function\">CreateClient<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> <span class=\"token keyword\">uint16_t<\/span> port<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">const<\/span> std<span class=\"token operator\">::<\/span>string <span class=\"token operator\">&amp;<\/span>ip<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 function\">CreateSocket<\/span><span class=\"token punctuation\">(<\/span><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 keyword\">return<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token function\">Connect<\/span><span class=\"token punctuation\">(<\/span>ip<span class=\"token punctuation\">,<\/span> port<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 keyword\">return<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">true<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">private<\/span><span class=\"token operator\">:<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u521b\u5efa\u5957\u63a5\u5b57<\/span><br \/>\n        <span class=\"token keyword\">bool<\/span> <span class=\"token function\">CreateSocket<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token comment\">\/\/ int socket(int domain, int type, int protocol)<\/span><br \/>\n            _sockfd <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">socket<\/span><span class=\"token punctuation\">(<\/span>AF_INET<span class=\"token punctuation\">,<\/span> SOCK_STREAM<span class=\"token punctuation\">,<\/span> IPPROTO_TCP<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>_sockfd <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token operator\">&#8211;<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token punctuation\">{<\/span><br \/>\n                <span class=\"token function\">LOG<\/span><span class=\"token punctuation\">(<\/span>ERROR<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;Sockfd Create Failed&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">true<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u7ed1\u5b9a\u5730\u5740\u7aef\u53e3\u4fe1\u606f<\/span><br \/>\n        <span class=\"token keyword\">bool<\/span> <span class=\"token function\">Bind<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> std<span class=\"token operator\">::<\/span>string <span class=\"token operator\">&amp;<\/span>ip<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">uint16_t<\/span> port<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">sockaddr_in<\/span> addr<span class=\"token punctuation\">;<\/span><br \/>\n            addr<span class=\"token punctuation\">.<\/span>sin_family <span class=\"token operator\">&#061;<\/span> AF_INET<span class=\"token punctuation\">;<\/span><br \/>\n            addr<span class=\"token punctuation\">.<\/span>sin_addr<span class=\"token punctuation\">.<\/span>s_addr <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">inet_addr<\/span><span class=\"token punctuation\">(<\/span>ip<span class=\"token punctuation\">.<\/span><span class=\"token function\">c_str<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            addr<span class=\"token punctuation\">.<\/span>sin_port <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">htons<\/span><span class=\"token punctuation\">(<\/span>port<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token function\">bind<\/span><span class=\"token punctuation\">(<\/span>_sockfd<span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">sockaddr<\/span> <span class=\"token operator\">*<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">&amp;<\/span>addr<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">sizeof<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">sockaddr_in<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <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\">LOG<\/span><span class=\"token punctuation\">(<\/span>ERROR<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;Bind Failed&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">true<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u76d1\u542c<\/span><br \/>\n        <span class=\"token keyword\">bool<\/span> <span class=\"token function\">Listen<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> <span class=\"token keyword\">int<\/span> backlog <span class=\"token operator\">&#061;<\/span> MAX_LISTEN<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 function\">listen<\/span><span class=\"token punctuation\">(<\/span>_sockfd<span class=\"token punctuation\">,<\/span> backlog<span class=\"token punctuation\">)<\/span> <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\">LOG<\/span><span class=\"token punctuation\">(<\/span>ERROR<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;Listen Failed&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">true<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u5ba2\u6237\u7aef\u53d1\u8d77\u8fde\u63a5<\/span><br \/>\n        <span class=\"token keyword\">bool<\/span> <span class=\"token function\">Connect<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> std<span class=\"token operator\">::<\/span>string <span class=\"token operator\">&amp;<\/span>ip<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">const<\/span> <span class=\"token keyword\">uint16_t<\/span> port<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">sockaddr_in<\/span> addr<span class=\"token punctuation\">;<\/span><br \/>\n            addr<span class=\"token punctuation\">.<\/span>sin_family <span class=\"token operator\">&#061;<\/span> AF_INET<span class=\"token punctuation\">;<\/span><br \/>\n            addr<span class=\"token punctuation\">.<\/span>sin_addr<span class=\"token punctuation\">.<\/span>s_addr <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">inet_addr<\/span><span class=\"token punctuation\">(<\/span>ip<span class=\"token punctuation\">.<\/span><span class=\"token function\">c_str<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            addr<span class=\"token punctuation\">.<\/span>sin_port <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">htons<\/span><span class=\"token punctuation\">(<\/span>port<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token function\">connect<\/span><span class=\"token punctuation\">(<\/span>_sockfd<span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">sockaddr<\/span> <span class=\"token operator\">*<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">&amp;<\/span>addr<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">sizeof<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">sockaddr_in<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <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\">LOG<\/span><span class=\"token punctuation\">(<\/span>ERROR<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;Connect Failed&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">true<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u63a5\u6536\u6570\u636e<\/span><br \/>\n        ssize_t <span class=\"token function\">_Recv<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span> <span class=\"token operator\">*<\/span>buf<span class=\"token punctuation\">,<\/span> size_t len<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">int<\/span> flag <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">int<\/span> ret <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">recv<\/span><span class=\"token punctuation\">(<\/span>_sockfd<span class=\"token punctuation\">,<\/span> buf<span class=\"token punctuation\">,<\/span> len<span class=\"token punctuation\">,<\/span> flag<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;&#061;<\/span> <span class=\"token number\">0<\/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>errno <span class=\"token operator\">&#061;&#061;<\/span> EINTR<span class=\"token punctuation\">)<\/span><br \/>\n                <span class=\"token punctuation\">{<\/span><br \/>\n                    <span class=\"token function\">LOG<\/span><span class=\"token punctuation\">(<\/span>WARNING<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;Interrupted By Signal&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                    <span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/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>errno <span class=\"token operator\">&#061;&#061;<\/span> EAGAIN<span class=\"token punctuation\">)<\/span><br \/>\n                <span class=\"token punctuation\">{<\/span><br \/>\n                    <span class=\"token function\">LOG<\/span><span class=\"token punctuation\">(<\/span>WARNING<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;No Data In Buffer&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                    <span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token punctuation\">}<\/span><\/p>\n<p>                <span class=\"token keyword\">return<\/span> <span class=\"token operator\">&#8211;<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> ret<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u53d1\u9001\u6570\u636e<\/span><br \/>\n        ssize_t <span class=\"token function\">_Send<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token operator\">*<\/span>buf<span class=\"token punctuation\">,<\/span> size_t len<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">int<\/span> flag <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">int<\/span> ret <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">send<\/span><span class=\"token punctuation\">(<\/span>_sockfd<span class=\"token punctuation\">,<\/span> buf<span class=\"token punctuation\">,<\/span> len<span class=\"token punctuation\">,<\/span> flag<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 keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>errno <span class=\"token operator\">&#061;&#061;<\/span> EINTR<span class=\"token punctuation\">)<\/span><br \/>\n                <span class=\"token punctuation\">{<\/span><br \/>\n                    <span class=\"token function\">LOG<\/span><span class=\"token punctuation\">(<\/span>WARNING<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;Interrupted By Signal&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                    <span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/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>errno <span class=\"token operator\">&#061;&#061;<\/span> EAGAIN<span class=\"token punctuation\">)<\/span><br \/>\n                <span class=\"token punctuation\">{<\/span><br \/>\n                    <span class=\"token function\">LOG<\/span><span class=\"token punctuation\">(<\/span>WARNING<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;Buffer Is Full&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                    <span class=\"token keyword\">return<\/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\">LOG<\/span><span class=\"token punctuation\">(<\/span>ERROR<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;Send Message Failed&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token keyword\">return<\/span> <span class=\"token operator\">&#8211;<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><\/p>\n<p>            <span class=\"token keyword\">return<\/span> ret<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u8bbe\u7f6e\u5957\u63a5\u5b57\u9009\u9879\u2014\u2014\u5f00\u542f\u5730\u5740\u7aef\u53e3\u91cd\u7528\u9009\u9879<\/span><br \/>\n        <span class=\"token keyword\">void<\/span> <span class=\"token function\">SetAddrReuse<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">int<\/span> opt <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token function\">setsockopt<\/span><span class=\"token punctuation\">(<\/span>_sockfd<span class=\"token punctuation\">,<\/span> SOL_SOCKET<span class=\"token punctuation\">,<\/span> SO_REUSEADDR<span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span> <span class=\"token operator\">*<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>opt<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">sizeof<\/span><span class=\"token punctuation\">(<\/span>opt<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><br \/>\n                <span class=\"token function\">LOG<\/span><span class=\"token punctuation\">(<\/span>ERROR<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;Set Reuse Addr Failed&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            opt <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token function\">setsockopt<\/span><span class=\"token punctuation\">(<\/span>_sockfd<span class=\"token punctuation\">,<\/span> SOL_SOCKET<span class=\"token punctuation\">,<\/span> SO_REUSEPORT<span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span> <span class=\"token operator\">*<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>opt<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">sizeof<\/span><span class=\"token punctuation\">(<\/span>opt<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><br \/>\n                <span class=\"token function\">LOG<\/span><span class=\"token punctuation\">(<\/span>ERROR<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;Set Reuse Opt Failed&#034;<\/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\">\/\/ \u8bbe\u7f6e\u5957\u63a5\u5b57\u5c5e\u6027\u2014\u2014\u8bbe\u7f6e\u4e3a\u975e\u963b\u585e<\/span><br \/>\n        <span class=\"token keyword\">void<\/span> <span class=\"token function\">SetNonBlock<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">int<\/span> flag <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">fcntl<\/span><span class=\"token punctuation\">(<\/span>_sockfd<span class=\"token punctuation\">,<\/span> F_GETFL<span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>flag <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\">LOG<\/span><span class=\"token punctuation\">(<\/span>ERROR<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;Get Socket Flage Failed&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token keyword\">return<\/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 function\">fcntl<\/span><span class=\"token punctuation\">(<\/span>_sockfd<span class=\"token punctuation\">,<\/span> F_SETFL<span class=\"token punctuation\">,<\/span> flag <span class=\"token operator\">|<\/span> O_NONBLOCK<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><br \/>\n                <span class=\"token function\">LOG<\/span><span class=\"token punctuation\">(<\/span>ERROR<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;Set Non-Block 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><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span> <span class=\"token comment\">\/\/ namespace ns_socket<\/span><\/p>\n<hr \/>\n<p>\u4e0a\u9762\u9884\u544a\u8fc7\u4e86&#xff0c;\u4e0b\u4e00\u4e2a\u535a\u5ba2\u662f\u5b9e\u73b0Channel\u6a21\u5757&#043;Poll\u6a21\u5757&#043;TimerWheel\u6a21\u5757&#043;EventLoop\u6a21\u5757&#xff0c;\u8fd9\u51e0\u4e2a\u6a21\u5757\u53ef\u4ee5\u8bf4\u8054\u7cfb\u7d27\u5bc6&#xff0c;\u6240\u4ee5\u5b9e\u73b0\u8d77\u6765\u6bd4\u8f83\u9ebb\u70e6&#xff0c;\u4f46\u662f\u535a\u4e3b\u4f1a\u5c3d\u53ef\u80fd\u7528\u6700\u7b80\u5355\u7684\u8bed\u53e5\u548c\u56fe\u7247\u89e3\u91ca\u6e05\u695a&#xff0c;\u656c\u8bf7\u671f\u5f85\u4e00\u4e0b\u5427<\/p>\n<hr \/>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250419212159-680413f70af22.jpg\" alt=\"\u8bf7\u6dfb\u52a0\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>\u4e13\u680f&#xff1a;Reactor\u6a21\u578b\u9ad8\u5e76\u53d1\u670d\u52a1\u5668\u9879\u76ee \u9879\u76ee\u4ee3\u7801\u4ed3\u5e93&#xff1a;Reactor\u6a21\u578b\u9ad8\u5e76\u53d1\u670d\u52a1\u5668\u9879\u76ee\u4ee3\u7801\u4ed3\u5e93&#xff08;\u968f\u535a\u5ba2\u66f4\u65b0&#xff09; 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