{"id":171,"date":"2026-03-24T23:35:33","date_gmt":"2026-03-24T15:35:33","guid":{"rendered":"https:\/\/codergodv.xyz\/?p=171"},"modified":"2026-03-24T23:35:34","modified_gmt":"2026-03-24T15:35:34","slug":"%e7%bd%91%e7%bb%9c%e7%bc%96%e7%a8%8b%e5%a5%97%e6%8e%a5%e5%ad%97%ef%bc%88%e4%ba%8c%ef%bc%89","status":"publish","type":"post","link":"https:\/\/codergodv.xyz\/index.php\/2026\/03\/24\/%e7%bd%91%e7%bb%9c%e7%bc%96%e7%a8%8b%e5%a5%97%e6%8e%a5%e5%ad%97%ef%bc%88%e4%ba%8c%ef%bc%89\/","title":{"rendered":"\u7f51\u7edc\u7f16\u7a0b\u5957\u63a5\u5b57\uff08\u4e8c\uff09"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">\u7b80\u5355\u7684TCP\u7f51\u7edc\u7a0b\u5e8f<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u670d\u52a1\u7aef\u521b\u5efa\u5957\u63a5\u5b57<\/h3>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u6211\u4eec\u5c06TCP\u670d\u52a1\u5668\u5c01\u88c5\u6210\u4e00\u4e2a\u7c7b\uff0c\u5f53\u6211\u4eec\u5b9a\u4e49\u51fa\u4e00\u4e2a\u670d\u52a1\u5668\u5bf9\u8c61\u540e\u9700\u8981\u9a6c\u4e0a\u5bf9\u670d\u52a1\u5668\u8fdb\u884c\u521d\u59cb\u5316\uff0c\u800c\u521d\u59cb\u5316TCP\u670d\u52a1\u5668\u8981\u505a\u7684\u7b2c\u4e00\u4ef6\u4e8b\u5c31\u662f\u521b\u5efa\u5957\u63a5\u5b57\u3002<\/p>\n<\/blockquote>\n\n\n\n<p>TCP\u670d\u52a1\u5668\u5728\u8c03\u7528socket\u51fd\u6570\u521b\u5efa\u5957\u63a5\u5b57\u65f6\uff0c\u53c2\u6570\u8bbe\u7f6e\u5982\u4e0b\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u534f\u8bae\u5bb6\u65cf\u9009\u62e9<code>AF_INET<\/code>\uff0c\u56e0\u4e3a\u6211\u4eec\u8981\u8fdb\u884c\u7684\u662f\u7f51\u7edc\u901a\u4fe1\u3002<\/li>\n\n\n\n<li>\u521b\u5efa\u5957\u63a5\u5b57\u65f6\u6240\u9700\u7684\u670d\u52a1\u7c7b\u578b\u5e94\u8be5\u662f<code>SOCK_STREAM<\/code>\uff0c\u56e0\u4e3a\u6211\u4eec\u7f16\u5199\u7684\u662fTCP\u670d\u52a1\u5668\uff0c<code>SOCK_STREAM<\/code>\u63d0\u4f9b\u7684\u5c31\u662f\u4e00\u4e2a\u6709\u5e8f\u7684\u3001\u53ef\u9760\u7684\u3001\u5168\u53cc\u5de5\u7684\u3001\u57fa\u4e8e\u8fde\u63a5\u7684\u6d41\u5f0f\u670d\u52a1\u3002<\/li>\n\n\n\n<li>\u534f\u8bae\u7c7b\u578b\u9ed8\u8ba4\u8bbe\u7f6e\u4e3a0\u5373\u53ef\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u5982\u679c\u521b\u5efa\u5957\u63a5\u5b57\u540e\u83b7\u5f97\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u662f\u5c0f\u4e8e0\u7684\uff0c\u8bf4\u660e\u521b\u5efa\u5957\u63a5\u5b57\u5931\u8d25\uff0c\u6b64\u65f6\u4e5f\u5c31\u6ca1\u5fc5\u8981\u8fdb\u884c\u540e\u7eed\u64cd\u4f5c\u4e86\uff0c\u76f4\u63a5\u7ec8\u6b62\u7a0b\u5e8f\u5373\u53ef\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>class TcpServer\n{\npublic:\n    void InitServer()\n    {\n        \/\/\u521b\u5efa\u5957\u63a5\u5b57\n        _sock = socket(AF_INET, SOCK_STREAM, 0);\n        if (_sock &lt; 0){\n            std::cerr &lt;&lt; \"socket error\" &lt;&lt; std::endl;\n            exit(2);\n        }\n    }\n    ~TcpServer()\n    {\n        if (_sock &gt;= 0){\n            close(_sock);\n        }\n    }\nprivate:\n    int _sock; \/\/\u5957\u63a5\u5b57\n};<\/code><\/pre>\n\n\n\n<p><strong>\u8bf4\u660e\u4e00\u4e0b\uff1a<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5b9e\u9645TCP\u670d\u52a1\u5668\u521b\u5efa\u5957\u63a5\u5b57\u7684\u505a\u6cd5\u4e0eUDP\u670d\u52a1\u5668\u662f\u4e00\u6837\u7684\uff0c\u53ea\u4e0d\u8fc7\u521b\u5efa\u5957\u63a5\u5b57\u65f6TCP\u9700\u8981\u7684\u662f\u6d41\u5f0f\u670d\u52a1\uff0c\u800cUDP\u9700\u8981\u7684\u662f\u7528\u6237\u6570\u636e\u62a5\u670d\u52a1\u3002<\/li>\n\n\n\n<li>\u5f53\u6790\u6784\u670d\u52a1\u5668\u65f6\uff0c\u53ef\u4ee5\u5c06\u670d\u52a1\u5668\u5bf9\u5e94\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u8fdb\u884c\u5173\u95ed\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u670d\u52a1\u7aef\u7ed1\u5b9a<\/h3>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u5957\u63a5\u5b57\u521b\u5efa\u5b8c\u6bd5\u540e\u6211\u4eec\u5b9e\u9645\u53ea\u662f\u5728\u7cfb\u7edf\u5c42\u9762\u4e0a\u6253\u5f00\u4e86\u4e00\u4e2a\u6587\u4ef6\uff0c\u8be5\u6587\u4ef6\u8fd8\u6ca1\u6709\u4e0e\u7f51\u7edc\u5173\u8054\u8d77\u6765\uff0c\u56e0\u6b64\u521b\u5efa\u5b8c\u5957\u63a5\u5b57\u540e\u6211\u4eec\u8fd8\u9700\u8981\u8c03\u7528bind\u51fd\u6570\u8fdb\u884c\u7ed1\u5b9a\u64cd\u4f5c\u3002<\/p>\n<\/blockquote>\n\n\n\n<p>\u7ed1\u5b9a\u7684\u6b65\u9aa4\u5982\u4e0b\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5b9a\u4e49\u4e00\u4e2a<code>struct sockaddr_in<\/code>\u7ed3\u6784\u4f53\uff0c\u5c06\u670d\u52a1\u5668\u7f51\u7edc\u76f8\u5173\u7684\u5c5e\u6027\u4fe1\u606f\u586b\u5145\u5230\u8be5\u7ed3\u6784\u4f53\u5f53\u4e2d\uff0c\u6bd4\u5982\u534f\u8bae\u5bb6\u65cf\u3001IP\u5730\u5740\u3001\u7aef\u53e3\u53f7\u7b49\u3002<\/li>\n\n\n\n<li>\u586b\u5145\u670d\u52a1\u5668\u7f51\u7edc\u76f8\u5173\u7684\u5c5e\u6027\u4fe1\u606f\u65f6\uff0c\u534f\u8bae\u5bb6\u65cf\u5bf9\u5e94\u5c31\u662f<code>AF_INET<\/code>\uff0c\u7aef\u53e3\u53f7\u5c31\u662f\u5f53\u524dTCP\u670d\u52a1\u5668\u7a0b\u5e8f\u7684\u7aef\u53e3\u53f7\u3002\u5728\u8bbe\u7f6e\u7aef\u53e3\u53f7\u65f6\uff0c\u9700\u8981\u8c03\u7528htons\u51fd\u6570\u5c06\u7aef\u53e3\u53f7\u7531\u4e3b\u673a\u5e8f\u5217\u8f6c\u4e3a\u7f51\u7edc\u5e8f\u5217\u3002<\/li>\n\n\n\n<li>\u5728\u8bbe\u7f6e\u670d\u52a1\u5668\u7684IP\u5730\u5740\u65f6\uff0c\u6211\u4eec\u53ef\u4ee5\u8bbe\u7f6e\u4e3a\u672c\u5730\u73af\u56de<code>127.0.0.1<\/code>\uff0c\u8868\u793a\u672c\u5730\u901a\u4fe1\u3002\u4e5f\u53ef\u4ee5\u8bbe\u7f6e\u4e3a\u516c\u7f51IP\u5730\u5740\uff0c\u8868\u793a\u7f51\u7edc\u901a\u4fe1\u3002<\/li>\n\n\n\n<li>\u5982\u679c\u4f7f\u7528\u7684\u662f\u4e91\u670d\u52a1\u5668\uff0c\u90a3\u4e48\u5728\u8bbe\u7f6e\u670d\u52a1\u5668\u7684IP\u5730\u5740\u65f6\uff0c\u4e0d\u9700\u8981\u663e\u793a\u7ed1\u5b9aIP\u5730\u5740\uff0c\u76f4\u63a5\u5c06IP\u5730\u5740\u8bbe\u7f6e\u4e3a<code>INADDR_ANY<\/code>\u5373\u53ef\uff0c\u6b64\u65f6\u670d\u52a1\u5668\u5c31\u53ef\u4ee5\u4ece\u672c\u5730\u4efb\u4f55\u4e00\u5f20\u7f51\u5361\u5f53\u4e2d\u8bfb\u53d6\u6570\u636e\u3002\u6b64\u5916\uff0c\u7531\u4e8e<code>INADDR_ANY<\/code>\u672c\u8d28\u5c31\u662f0\uff0c\u56e0\u6b64\u5728\u8bbe\u7f6e\u65f6\u4e0d\u9700\u8981\u8fdb\u884c\u7f51\u7edc\u5b57\u8282\u5e8f\u7684\u8f6c\u6362\u3002<\/li>\n\n\n\n<li>\u586b\u5145\u5b8c\u670d\u52a1\u5668\u7f51\u7edc\u76f8\u5173\u7684\u5c5e\u6027\u4fe1\u606f\u540e\uff0c\u9700\u8981\u8c03\u7528bind\u51fd\u6570\u8fdb\u884c\u7ed1\u5b9a\u3002\u7ed1\u5b9a\u5b9e\u9645\u5c31\u662f\u5c06\u6587\u4ef6\u4e0e\u7f51\u7edc\u5173\u8054\u8d77\u6765\uff0c\u5982\u679c\u7ed1\u5b9a\u5931\u8d25\u4e5f\u6ca1\u5fc5\u8981\u8fdb\u884c\u540e\u7eed\u64cd\u4f5c\u4e86\uff0c\u76f4\u63a5\u7ec8\u6b62\u7a0b\u5e8f\u5373\u53ef\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u7531\u4e8eTCP\u670d\u52a1\u5668\u521d\u59cb\u5316\u65f6\u9700\u8981\u670d\u52a1\u5668\u7684\u7aef\u53e3\u53f7\uff0c\u56e0\u6b64\u5728\u670d\u52a1\u5668\u7c7b\u5f53\u4e2d\u9700\u8981\u5f15\u5165\u7aef\u53e3\u53f7\uff0c\u5f53\u5b9e\u4f8b\u5316\u670d\u52a1\u5668\u5bf9\u8c61\u65f6\u5c31\u9700\u8981\u7ed9\u4f20\u5165\u4e00\u4e2a\u7aef\u53e3\u53f7\u3002\u800c\u7531\u4e8e\u6211\u5f53\u524d\u4f7f\u7528\u7684\u662f\u4e91\u670d\u52a1\u5668\uff0c\u56e0\u6b64\u5728\u7ed1\u5b9aTCP\u670d\u52a1\u5668\u7684IP\u5730\u5740\u65f6\u4e0d\u9700\u8981\u7ed1\u5b9a\u516c\u7f51IP\u5730\u5740\uff0c\u76f4\u63a5\u7ed1\u5b9a<code>INADDR_ANY<\/code>\u5373\u53ef\uff0c\u56e0\u6b64\u6211\u8fd9\u91cc\u6ca1\u6709\u5728\u670d\u52a1\u5668\u7c7b\u5f53\u4e2d\u5f15\u5165IP\u5730\u5740\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>class TcpServer\n{\npublic:\n    TcpServer(int port)\n        : _sock(-1)\n        , _port(port)\n    {}\n    void InitServer()\n    {\n        \/\/\u521b\u5efa\u5957\u63a5\u5b57\n        _sock = socket(AF_INET, SOCK_STREAM, 0);\n        if (_sock &lt; 0){\n            std::cerr &lt;&lt; \"socket error\" &lt;&lt; std::endl;\n            exit(2);\n        }\n        \/\/\u7ed1\u5b9a\n        struct sockaddr_in local;\n        memset(&amp;local, '\\0', sizeof(local));\n        local.sin_family = AF_INET;\n        local.sin_port = htons(_port);\n        local.sin_addr.s_addr = INADDR_ANY;\n\n        if (bind(_sock, (struct sockaddr*)&amp;local, sizeof(local)) &lt; 0){\n            std::cerr &lt;&lt; \"bind error\" &lt;&lt; std::endl;\n            exit(3);\n        }\n    }\n    ~TcpServer()\n    {\n        if (_sock &gt;= 0){\n            close(_sock);\n        }\n    }\nprivate:\n    int _sock; \/\/\u76d1\u542c\u5957\u63a5\u5b57\n    int _port; \/\/\u7aef\u53e3\u53f7\n};<\/code><\/pre>\n\n\n\n<p>\u5f53\u5b9a\u4e49\u597d<code>struct sockaddr_in<\/code>\u7ed3\u6784\u4f53\u540e\uff0c\u6700\u597d\u5148\u7528memset\u51fd\u6570\u5bf9\u8be5\u7ed3\u6784\u4f53\u8fdb\u884c\u6e05\u7a7a\uff0c\u4e5f\u53ef\u4ee5\u7528bzero\u51fd\u6570\u8fdb\u884c\u6e05\u7a7a\u3002bzero\u51fd\u6570\u4e5f\u53ef\u4ee5\u5bf9\u7279\u5b9a\u7684\u4e00\u5757\u5185\u5b58\u533a\u57df\u8fdb\u884c\u6e05\u7a7a\uff0cbzero\u51fd\u6570\u7684\u51fd\u6570\u539f\u578b\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>void bzero(void* s, size_t n);<\/code><\/pre>\n\n\n\n<p><strong>\u8bf4\u660e\u4e00\u4e0b\uff1a<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>TCP\u670d\u52a1\u5668\u7ed1\u5b9a\u65f6\u7684\u6b65\u9aa4\u4e0eUDP\u670d\u52a1\u5668\u662f\u5b8c\u5168\u4e00\u6837\u7684\uff0c\u6ca1\u6709\u4efb\u4f55\u533a\u522b\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u670d\u52a1\u7aef\u76d1\u542c<\/h3>\n\n\n\n<p>UDP\u670d\u52a1\u5668\u7684\u521d\u59cb\u5316\u64cd\u4f5c\u53ea\u6709\u4e24\u6b65\uff0c\u7b2c\u4e00\u6b65\u5c31\u662f\u521b\u5efa\u5957\u63a5\u5b57\uff0c\u7b2c\u4e8c\u6b65\u5c31\u662f\u7ed1\u5b9a\u3002\u800cTCP\u670d\u52a1\u5668\u662f\u9762\u5411\u8fde\u63a5\u7684\uff0c\u5ba2\u6237\u7aef\u5728\u6b63\u5f0f\u5411TCP\u670d\u52a1\u5668\u53d1\u9001\u6570\u636e\u4e4b\u524d\uff0c\u9700\u8981\u5148\u4e0eTCP\u670d\u52a1\u5668\u5efa\u7acb\u8fde\u63a5\uff0c\u7136\u540e\u624d\u80fd\u4e0e\u670d\u52a1\u5668\u8fdb\u884c\u901a\u4fe1\u3002<\/p>\n\n\n\n<p>\u56e0\u6b64TCP\u670d\u52a1\u7aef\u9700\u8981\u65f6\u523b\u6ce8\u610f\u662f\u5426\u6709\u5ba2\u6237\u7aef\u53d1\u6765\u8fde\u63a5\u8bf7\u6c42\uff0c\u6b64\u65f6\u5c31\u9700\u8981\u5c06TCP\u670d\u52a1\u5668\u521b\u5efa\u7684\u5957\u63a5\u5b57\u8bbe\u7f6e\u4e3a\u76d1\u542c\u72b6\u6001\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>listen\u51fd\u6570<\/p>\n<\/blockquote>\n\n\n\n<p>\u8bbe\u7f6e\u5957\u63a5\u5b57\u4e3a\u76d1\u542c\u72b6\u6001\u7684\u51fd\u6570\u53eb\u505alisten\uff0c\u8be5\u51fd\u6570\u7684\u51fd\u6570\u539f\u578b\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>int listen(int sockfd, int backlog);<\/code><\/pre>\n\n\n\n<p>\u53c2\u6570\u8bf4\u660e\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>sockfd\uff1a\u9700\u8981\u8bbe\u7f6e\u4e3a\u76d1\u542c\u72b6\u6001\u7684\u5957\u63a5\u5b57\u5bf9\u5e94\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u3002<\/li>\n\n\n\n<li>backlog\uff1a\u5168\u8fde\u63a5\u961f\u5217\u7684\u6700\u5927\u957f\u5ea6\u3002\u5982\u679c\u6709\u591a\u4e2a\u5ba2\u6237\u7aef\u540c\u65f6\u53d1\u6765\u8fde\u63a5\u8bf7\u6c42\uff0c\u6b64\u65f6\u672a\u88ab\u670d\u52a1\u5668\u5904\u7406\u7684\u8fde\u63a5\u5c31\u4f1a\u653e\u5165\u8fde\u63a5\u961f\u5217\uff0c\u8be5\u53c2\u6570\u4ee3\u8868\u7684\u5c31\u662f\u8fd9\u4e2a\u5168\u8fde\u63a5\u961f\u5217\u7684\u6700\u5927\u957f\u5ea6\uff0c\u4e00\u822c\u4e0d\u8981\u8bbe\u7f6e\u592a\u5927\uff0c\u8bbe\u7f6e\u4e3a5\u621610\u5373\u53ef\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u8fd4\u56de\u503c\u8bf4\u660e\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u76d1\u542c\u6210\u529f\u8fd4\u56de0\uff0c\u76d1\u542c\u5931\u8d25\u8fd4\u56de-1\uff0c\u540c\u65f6\u9519\u8bef\u7801\u4f1a\u88ab\u8bbe\u7f6e\u3002<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u670d\u52a1\u5668\u76d1\u542c<\/p>\n<\/blockquote>\n\n\n\n<p>TCP\u670d\u52a1\u5668\u5728\u521b\u5efa\u5b8c\u5957\u63a5\u5b57\u548c\u7ed1\u5b9a\u540e\uff0c\u9700\u8981\u518d\u8fdb\u4e00\u6b65\u5c06\u5957\u63a5\u5b57\u8bbe\u7f6e\u4e3a\u76d1\u542c\u72b6\u6001\uff0c\u76d1\u542c\u662f\u5426\u6709\u65b0\u7684\u8fde\u63a5\u5230\u6765\u3002\u5982\u679c\u76d1\u542c\u5931\u8d25\u4e5f\u6ca1\u5fc5\u8981\u8fdb\u884c\u540e\u7eed\u64cd\u4f5c\u4e86\uff0c\u56e0\u4e3a\u76d1\u542c\u5931\u8d25\u4e5f\u5c31\u610f\u5473\u7740TCP\u670d\u52a1\u5668\u65e0\u6cd5\u63a5\u6536\u5ba2\u6237\u7aef\u53d1\u6765\u7684\u8fde\u63a5\u8bf7\u6c42\uff0c\u56e0\u6b64\u76d1\u542c\u5931\u8d25\u6211\u4eec\u76f4\u63a5\u7ec8\u6b62\u8fdb\u7a0b\u5373\u53ef\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>#define BACKLOG 5\n\nclass TcpServer\n{\npublic:\n    void InitServer()\n    {\n        \/\/\u521b\u5efa\u5957\u63a5\u5b57\n        _listen_sock = socket(AF_INET, SOCK_STREAM, 0);\n        if (_listen_sock &lt; 0){\n            std::cerr &lt;&lt; \"socket error\" &lt;&lt; std::endl;\n            exit(2);\n        }\n        \/\/\u7ed1\u5b9a\n        struct sockaddr_in local;\n        memset(&amp;local, '\\0', sizeof(local));\n        local.sin_family = AF_INET;\n        local.sin_port = htons(_port);\n        local.sin_addr.s_addr = INADDR_ANY;\n\n        if (bind(_listen_sock, (struct sockaddr*)&amp;local, sizeof(local)) &lt; 0){\n            std::cerr &lt;&lt; \"bind error\" &lt;&lt; std::endl;\n            exit(3);\n        }\n        \/\/\u76d1\u542c\n        if (listen(_listen_sock, BACKLOG) &lt; 0){\n            std::cerr &lt;&lt; \"listen error\" &lt;&lt; std::endl;\n            exit(4);\n        }\n    }\nprivate:\n    int _listen_sock; \/\/\u76d1\u542c\u5957\u63a5\u5b57\n    int _port; \/\/\u7aef\u53e3\u53f7\n};<\/code><\/pre>\n\n\n\n<p><strong>\u8bf4\u660e\u4e00\u4e0b\uff1a<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u521d\u59cb\u5316TCP\u670d\u52a1\u5668\u65f6\u521b\u5efa\u7684\u5957\u63a5\u5b57\u5e76\u4e0d\u662f\u666e\u901a\u7684\u5957\u63a5\u5b57\uff0c\u800c\u5e94\u8be5\u53eb\u505a\u76d1\u542c\u5957\u63a5\u5b57\u3002\u4e3a\u4e86\u8868\u660e\u5bd3\u610f\uff0c\u6211\u4eec\u5c06\u4ee3\u7801\u4e2d\u5957\u63a5\u5b57\u7684\u540d\u5b57\u6709sock\u6539\u4e3alisten_sock\u3002<\/li>\n\n\n\n<li>\u5728\u521d\u59cb\u5316TCP\u670d\u52a1\u5668\u65f6\uff0c\u53ea\u6709\u521b\u5efa\u5957\u63a5\u5b57\u6210\u529f\u3001\u7ed1\u5b9a\u6210\u529f\u3001\u76d1\u542c\u6210\u529f\uff0c\u6b64\u65f6TCP\u670d\u52a1\u5668\u7684\u521d\u59cb\u5316\u624d\u7b97\u5b8c\u6210\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u670d\u52a1\u7aef\u83b7\u53d6\u8fde\u63a5<\/h3>\n\n\n\n<p>TCP\u670d\u52a1\u5668\u521d\u59cb\u5316\u540e\u5c31\u53ef\u4ee5\u5f00\u59cb\u8fd0\u884c\u4e86\uff0c\u4f46TCP\u670d\u52a1\u5668\u5728\u4e0e\u5ba2\u6237\u7aef\u8fdb\u884c\u7f51\u7edc\u901a\u4fe1\u4e4b\u524d\uff0c\u670d\u52a1\u5668\u9700\u8981\u5148\u83b7\u53d6\u5230\u5ba2\u6237\u7aef\u7684\u8fde\u63a5\u8bf7\u6c42\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>accept\u51fd\u6570<\/p>\n<\/blockquote>\n\n\n\n<p>\u83b7\u53d6\u8fde\u63a5\u7684\u51fd\u6570\u53eb\u505aaccept\u51fd\u6570\uff0c\u8be5\u51fd\u6570\u7684\u51fd\u6570\u539f\u578b\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>int accept(int sockfd, struct sockaddr* addr, socklen_t* addrlen);<\/code><\/pre>\n\n\n\n<p>\u53c2\u6570\u8bf4\u660e\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>sockfd\uff1a\u7279\u5b9a\u7684\u76d1\u542c\u5957\u63a5\u5b57\uff0c\u8868\u793a\u4ece\u8be5\u76d1\u542c\u5957\u63a5\u5b57\u4e2d\u83b7\u53d6\u8fde\u63a5\u3002<\/li>\n\n\n\n<li>addr\uff1a\u5bf9\u7aef\u7f51\u7edc\u76f8\u5173\u7684\u5c5e\u6027\u4fe1\u606f\uff0c\u5305\u62ec\u534f\u8bae\u5bb6\u65cf\u3001IP\u5730\u5740\u3001\u7aef\u53e3\u53f7\u7b49\u3002<\/li>\n\n\n\n<li>addrlen\uff1a\u8c03\u7528\u65f6\u4f20\u5165\u671f\u671b\u8bfb\u53d6\u7684addr\u7ed3\u6784\u4f53\u7684\u957f\u5ea6\uff0c\u8fd4\u56de\u65f6\u4ee3\u8868\u5b9e\u9645\u8bfb\u53d6\u5230\u7684addr\u7ed3\u6784\u4f53\u7684\u957f\u5ea6\uff0c\u8fd9\u662f\u4e00\u4e2a\u8f93\u5165\u8f93\u51fa\u578b\u53c2\u6570\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u8fd4\u56de\u503c\u8bf4\u660e\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u83b7\u53d6\u8fde\u63a5\u6210\u529f\u8fd4\u56de\u63a5\u6536\u5230\u7684\u5957\u63a5\u5b57\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\uff0c\u83b7\u53d6\u8fde\u63a5\u5931\u8d25\u8fd4\u56de-1\uff0c\u540c\u65f6\u9519\u8bef\u7801\u4f1a\u88ab\u8bbe\u7f6e\u3002<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>accept\u51fd\u6570\u8fd4\u56de\u7684\u5957\u63a5\u5b57\u662f\u4ec0\u4e48\uff1f<\/p>\n<\/blockquote>\n\n\n\n<p>\u8c03\u7528accept\u51fd\u6570\u83b7\u53d6\u8fde\u63a5\u65f6\uff0c\u662f\u4ece\u76d1\u542c\u5957\u63a5\u5b57\u5f53\u4e2d\u83b7\u53d6\u7684\u3002\u5982\u679caccept\u51fd\u6570\u83b7\u53d6\u8fde\u63a5\u6210\u529f\uff0c\u6b64\u65f6\u4f1a\u8fd4\u56de\u63a5\u6536\u5230\u7684\u5957\u63a5\u5b57\u5bf9\u5e94\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u3002<\/p>\n\n\n\n<p>\u76d1\u542c\u5957\u63a5\u5b57\u4e0eaccept\u51fd\u6570\u8fd4\u56de\u7684\u5957\u63a5\u5b57\u7684\u4f5c\u7528\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u76d1\u542c\u5957\u63a5\u5b57\uff1a\u7528\u4e8e\u83b7\u53d6\u5ba2\u6237\u7aef\u53d1\u6765\u7684\u8fde\u63a5\u8bf7\u6c42\u3002accept\u51fd\u6570\u4e0d\u4f1a\u65ad\u4ece\u76d1\u542c\u5957\u63a5\u5b57\u5f53\u4e2d\u83b7\u53d6\u65b0\u8fde\u63a5\u3002<\/li>\n\n\n\n<li>accept\u51fd\u6570\u8fd4\u56de\u7684\u5957\u63a5\u5b57\uff1a\u7528\u4e8e\u4e3a\u672c\u6b21accept\u83b7\u53d6\u5230\u7684\u8fde\u63a5\u63d0\u4f9b\u670d\u52a1\u3002\u76d1\u542c\u5957\u63a5\u5b57\u7684\u4efb\u52a1\u53ea\u662f\u4e0d\u65ad\u83b7\u53d6\u65b0\u8fde\u63a5\uff0c\u800c\u771f\u6b63\u4e3a\u8fd9\u4e9b\u8fde\u63a5\u63d0\u4f9b\u670d\u52a1\u7684\u5957\u63a5\u5b57\u662faccept\u51fd\u6570\u8fd4\u56de\u7684\u5957\u63a5\u5b57\uff0c\u800c\u4e0d\u662f\u76d1\u542c\u5957\u63a5\u5b57\u3002<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u670d\u52a1\u7aef\u83b7\u53d6\u8fde\u63a5<\/p>\n<\/blockquote>\n\n\n\n<p>\u670d\u52a1\u7aef\u5728\u83b7\u53d6\u8fde\u63a5\u65f6\u9700\u8981\u6ce8\u610f\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>accept\u51fd\u6570\u83b7\u53d6\u8fde\u63a5\u65f6\u53ef\u80fd\u4f1a\u5931\u8d25\uff0c\u4f46TCP\u670d\u52a1\u5668\u4e0d\u4f1a\u56e0\u4e3a\u83b7\u53d6\u67d0\u4e2a\u8fde\u63a5\u5931\u8d25\u800c\u9000\u51fa\uff0c\u56e0\u6b64\u670d\u52a1\u7aef\u83b7\u53d6\u8fde\u63a5\u5931\u8d25\u540e\u5e94\u8be5\u7ee7\u7eed\u83b7\u53d6\u8fde\u63a5\u3002<\/li>\n\n\n\n<li>\u5982\u679c\u8981\u5c06\u83b7\u53d6\u5230\u7684\u8fde\u63a5\u5bf9\u5e94\u5ba2\u6237\u7aef\u7684IP\u5730\u5740\u548c\u7aef\u53e3\u53f7\u4fe1\u606f\u8fdb\u884c\u8f93\u51fa\uff0c\u9700\u8981\u8c03\u7528inet_ntoa\u51fd\u6570\u5c06\u6574\u6570IP\u8f6c\u6362\u6210\u5b57\u7b26\u4e32IP\uff0c\u8c03\u7528ntohs\u51fd\u6570\u5c06\u7aef\u53e3\u53f7\u7531\u7f51\u7edc\u5e8f\u5217\u8f6c\u6362\u6210\u4e3b\u673a\u5e8f\u5217\u3002<\/li>\n\n\n\n<li>inet_ntoa\u51fd\u6570\u5728\u5e95\u5c42\u5b9e\u9645\u505a\u4e86\u4e24\u4e2a\u5de5\u4f5c\uff0c\u4e00\u662f\u5c06\u7f51\u7edc\u5e8f\u5217\u8f6c\u6362\u6210\u4e3b\u673a\u5e8f\u5217\uff0c\u4e8c\u662f\u5c06\u4e3b\u673a\u5e8f\u5217\u7684\u6574\u6570IP\u8f6c\u6362\u6210\u5b57\u7b26\u4e32\u98ce\u683c\u7684\u70b9\u5206\u5341\u8fdb\u5236\u7684IP\u3002<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>class TcpServer\n{\npublic:\n    void Start()\n    {\n        for (;;){\n            \/\/\u83b7\u53d6\u8fde\u63a5\n            struct sockaddr_in peer;\n            memset(&amp;peer, '\\0', sizeof(peer));\n            socklen_t len = sizeof(peer);\n            int sock = accept(_listen_sock, (struct sockaddr*)&amp;peer, &amp;len);\n            if (sock &lt; 0){\n                std::cerr &lt;&lt; \"accept error, continue next\" &lt;&lt; std::endl;\n                continue;\n            }\n            std::string client_ip = inet_ntoa(peer.sin_addr);\n            int client_port = ntohs(peer.sin_port);\n            std::cout&lt;&lt;\"get a new link-&gt;\"&lt;&lt;sock&lt;&lt;\" &#91;\"&lt;&lt;client_ip&lt;&lt;\"]:\"&lt;&lt;client_port&lt;&lt;std::endl;\n        }\n    }\nprivate:\n    int _listen_sock; \/\/\u76d1\u542c\u5957\u63a5\u5b57\n    int _port; \/\/\u7aef\u53e3\u53f7\n};<\/code><\/pre>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u670d\u52a1\u5668\u7aef\u63a5\u6536\u8fde\u63a5\u6d4b\u8bd5<\/p>\n<\/blockquote>\n\n\n\n<p>\u73b0\u5728\u6211\u4eec\u53ef\u4ee5\u505a\u4e00\u4e0b\u7b80\u5355\u7684\u6d4b\u8bd5\uff0c\u770b\u770b\u5f53\u524d\u670d\u52a1\u5668\u80fd\u5426\u6210\u529f\u63a5\u6536\u8bf7\u6c42\u8fde\u63a5\u3002\u5728\u8fd0\u884c\u670d\u52a1\u7aef\u65f6\u9700\u8981\u4f20\u5165\u4e00\u4e2a\u7aef\u53e3\u53f7\u4f5c\u4e3a\u670d\u52a1\u7aef\u7684\u7aef\u53e3\u53f7\uff0c\u7136\u540e\u6211\u4eec\u7528\u8be5\u7aef\u53e3\u53f7\u6784\u9020\u4e00\u4e2a\u670d\u52a1\u7aef\u5bf9\u8c61\uff0c\u5bf9\u670d\u52a1\u7aef\u8fdb\u884c\u521d\u59cb\u5316\u540e\u542f\u52a8\u670d\u52a1\u7aef\u5373\u53ef\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>void Usage(std::string proc)\n{\n    std::cout &lt;&lt; \"Usage: \" &lt;&lt; proc &lt;&lt; \" port\" &lt;&lt; std::endl;\n}\nint main(int argc, char* argv&#91;])\n{\n    if (argc != 2){\n        Usage(argv&#91;0]);\n        exit(1);\n    }\n    int port = atoi(argv&#91;1]);\n    TcpServer* svr = new TcpServer(port);\n    svr-&gt;InitServer();\n    svr-&gt;Start();\n    return 0;\n}<\/code><\/pre>\n\n\n\n<p>\u7f16\u8bd1\u4ee3\u7801\u540e\uff0c\u4ee5<code>.\/tcp_server \u7aef\u53e3\u53f7<\/code>\u7684\u65b9\u5f0f\u8fd0\u884c\u670d\u52a1\u7aef\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/cdn.codergodv.xyz\/9b7b1b903fa84163bbf1b68ab249f7e5.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/cdn.codergodv.xyz\/9b7b1b903fa84163bbf1b68ab249f7e5.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"img\"\/><\/div><\/figure>\n\n\n\n<p>\u670d\u52a1\u5668\u8fd0\u884c\u540e\uff0c\u901a\u8fc7<code>netstat<\/code>\u547d\u4ee4\u53ef\u4ee5\u67e5\u770b\u5230\u4e00\u4e2a\u7a0b\u5e8f\u540d\u4e3atcp_server\u7684\u670d\u52a1\u7a0b\u5e8f\uff0c\u5b83\u7ed1\u5b9a\u7684\u7aef\u53e3\u5c31\u662f8081\uff0c\u800c\u7531\u4e8e\u670d\u52a1\u5668\u7ed1\u5b9a\u7684\u662f<code>INADDR_ANY<\/code>\uff0c\u56e0\u6b64\u8be5\u670d\u52a1\u5668\u7684\u672c\u5730IP\u5730\u5740\u662f<code>0.0.0.0<\/code>\uff0c\u8fd9\u5c31\u610f\u5473\u7740\u8be5TCP\u670d\u52a1\u5668\u53ef\u4ee5\u8bfb\u53d6\u672c\u5730\u4efb\u4f55\u4e00\u5f20\u7f51\u5361\u91cc\u9762\u7684\u6570\u636e\u3002\u6b64\u5916\uff0c\u6700\u91cd\u8981\u7684\u662f\u5f53\u524d\u670d\u52a1\u5668\u6240\u5904\u7684\u72b6\u6001\u662f<code>LISTEN<\/code>\u72b6\u6001\uff0c\u8868\u660e\u5f53\u524d\u670d\u52a1\u5668\u53ef\u4ee5\u63a5\u6536\u5916\u90e8\u7684\u8bf7\u6c42\u8fde\u63a5\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/cdn.codergodv.xyz\/6ac0719a6b204edbb91876691d380919.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/cdn.codergodv.xyz\/6ac0719a6b204edbb91876691d380919.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"img\"\/><\/div><\/figure>\n\n\n\n<p>\u867d\u7136\u73b0\u5728\u8fd8\u6ca1\u6709\u7f16\u5199\u5ba2\u6237\u7aef\u76f8\u5173\u7684\u4ee3\u7801\uff0c\u4f46\u662f\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528<code>telnet<\/code>\u547d\u4ee4\u8fdc\u7a0b\u767b\u5f55\u5230\u8be5\u670d\u52a1\u5668\uff0c\u56e0\u4e3a<code>telnet<\/code>\u5e95\u5c42\u5b9e\u9645\u91c7\u7528\u7684\u5c31\u662fTCP\u534f\u8bae\u3002<\/p>\n\n\n\n<p>\u4f7f\u7528<code>telnet<\/code>\u547d\u4ee4\u8fde\u63a5\u5f53\u524dTCP\u670d\u52a1\u5668\u540e\u53ef\u4ee5\u770b\u5230\uff0c\u6b64\u65f6\u670d\u52a1\u5668\u63a5\u6536\u5230\u4e86\u4e00\u4e2a\u8fde\u63a5\uff0c\u4e3a\u8be5\u8fde\u63a5\u63d0\u4f9b\u670d\u52a1\u7684\u5957\u63a5\u5b57\u5bf9\u5e94\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u5c31\u662f4\u3002\u56e0\u4e3a0\u30011\u30012\u662f\u9ed8\u8ba4\u6253\u5f00\u7684\uff0c\u5176\u5206\u522b\u5bf9\u5e94\u6807\u51c6\u8f93\u5165\u6d41\u3001\u6807\u51c6\u8f93\u51fa\u6d41\u548c\u6807\u51c6\u9519\u8bef\u6d41\uff0c\u800c3\u53f7\u6587\u4ef6\u63cf\u8ff0\u7b26\u5728\u521d\u59cb\u5316\u670d\u52a1\u5668\u65f6\u5206\u914d\u7ed9\u4e86\u76d1\u542c\u5957\u63a5\u5b57\uff0c\u56e0\u6b64\u5f53\u7b2c\u4e00\u4e2a\u5ba2\u6237\u7aef\u53d1\u8d77\u8fde\u63a5\u8bf7\u6c42\u65f6\uff0c\u4e3a\u8be5\u5ba2\u6237\u7aef\u63d0\u4f9b\u670d\u52a1\u7684\u5957\u63a5\u5b57\u5bf9\u5e94\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u5c31\u662f4\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/cdn.codergodv.xyz\/833075157f604af8a9cb033b181878ad.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/cdn.codergodv.xyz\/833075157f604af8a9cb033b181878ad.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"img\"\/><\/div><\/figure>\n\n\n\n<p>\u5982\u679c\u6b64\u65f6\u6211\u4eec\u518d\u7528\u5176\u4ed6\u7a97\u53e3\u7ee7\u7eed\u4f7f\u7528<code>telnet<\/code>\u547d\u4ee4\uff0c\u5411\u8be5TCP\u670d\u52a1\u5668\u53d1\u8d77\u8bf7\u6c42\u8fde\u63a5\uff0c\u6b64\u65f6\u4e3a\u8be5\u5ba2\u6237\u7aef\u63d0\u4f9b\u670d\u52a1\u7684\u5957\u63a5\u5b57\u5bf9\u5e94\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u5c31\u662f5\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/cdn.codergodv.xyz\/0fbdee94fb61495f96e735c76c4dfa42.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/cdn.codergodv.xyz\/0fbdee94fb61495f96e735c76c4dfa42.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"img\"\/><\/div><\/figure>\n\n\n\n<p>\u5f53\u7136\uff0c\u4e5f\u53ef\u4ee5\u76f4\u63a5\u7528\u6d4f\u89c8\u5668\u6765\u8bbf\u95ee\u8fd9\u4e2aTCP\u670d\u52a1\u5668\uff0c\u56e0\u4e3a\u6d4f\u89c8\u5668\u5e38\u89c1\u7684\u5e94\u7528\u5c42\u534f\u8bae\u662fhttp\u6216https\uff0c\u5176\u5e95\u5c42\u5bf9\u5e94\u7684\u4e5f\u662fTCP\u534f\u8bae\uff0c\u56e0\u6b64\u6d4f\u89c8\u5668\u4e5f\u53ef\u4ee5\u5411\u5f53\u524d\u8fd9\u4e2aTCP\u53d1\u8d77\u8bf7\u6c42\u8fde\u63a5\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/cdn.codergodv.xyz\/2dbbbda098a94c6cbdbea9c2a917961d.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/cdn.codergodv.xyz\/2dbbbda098a94c6cbdbea9c2a917961d.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"img\"\/><\/div><\/figure>\n\n\n\n<p><strong>\u8bf4\u660e\u4e00\u4e0b\uff1a<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u81f3\u4e8e\u8fd9\u91cc\u4e3a\u4ec0\u4e48\u6d4f\u89c8\u5668\u4e00\u6b21\u5411\u6211\u4eec\u7684TCP\u670d\u52a1\u5668\u53d1\u8d77\u4e24\u6b21\u8bf7\u6c42\u8fd9\u4e2a\u95ee\u9898\uff0c\u8fd9\u91cc\u5c31\u4e0d\u4f5c\u8ba8\u8bba\u4e86\uff0c\u6211\u4eec\u53ea\u662f\u8981\u8bc1\u660e\u5f53\u524dTCP\u670d\u52a1\u5668\u80fd\u591f\u6b63\u5e38\u63a5\u6536\u5916\u90e8\u7684\u8bf7\u6c42\u8fde\u63a5\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u670d\u52a1\u7aef\u5904\u7406\u8bf7\u6c42<\/h3>\n\n\n\n<p>\u73b0\u5728TCP\u670d\u52a1\u5668\u5df2\u7ecf\u80fd\u591f\u83b7\u53d6\u8fde\u63a5\u8bf7\u6c42\u4e86\uff0c\u4e0b\u9762\u5f53\u7136\u5c31\u662f\u8981\u5bf9\u83b7\u53d6\u5230\u7684\u8fde\u63a5\u8fdb\u884c\u5904\u7406\u3002\u4f46\u6b64\u65f6\u4e3a\u5ba2\u6237\u7aef\u63d0\u4f9b\u670d\u52a1\u7684\u4e0d\u662f\u76d1\u542c\u5957\u63a5\u5b57\uff0c\u56e0\u4e3a\u76d1\u542c\u5957\u63a5\u5b57\u83b7\u53d6\u5230\u4e00\u4e2a\u8fde\u63a5\u540e\u4f1a\u7ee7\u7eed\u83b7\u53d6\u4e0b\u4e00\u4e2a\u8bf7\u6c42\u8fde\u63a5\uff0c\u4e3a\u5bf9\u5e94\u5ba2\u6237\u7aef\u63d0\u4f9b\u670d\u52a1\u7684\u5957\u63a5\u5b57\u5b9e\u9645\u662faccept\u51fd\u6570\u8fd4\u56de\u7684\u5957\u63a5\u5b57\uff0c\u4e0b\u9762\u5c31\u5c06\u5176\u79f0\u4e3a\u201c\u670d\u52a1\u5957\u63a5\u5b57\u201d\u3002<\/p>\n\n\n\n<p>\u4e3a\u4e86\u8ba9\u901a\u4fe1\u53cc\u65b9\u90fd\u80fd\u770b\u5230\u5bf9\u5e94\u7684\u73b0\u8c61\uff0c\u6211\u4eec\u8fd9\u91cc\u5c31\u5b9e\u73b0\u4e00\u4e2a\u7b80\u5355\u7684\u56de\u58f0TCP\u670d\u52a1\u5668\uff0c\u670d\u52a1\u7aef\u5728\u4e3a\u5ba2\u6237\u7aef\u63d0\u4f9b\u670d\u52a1\u65f6\u5c31\u7b80\u5355\u7684\u5c06\u5ba2\u6237\u7aef\u53d1\u6765\u7684\u6570\u636e\u8fdb\u884c\u8f93\u51fa\uff0c\u5e76\u4e14\u5c06\u5ba2\u6237\u7aef\u53d1\u6765\u7684\u6570\u636e\u91cd\u65b0\u53d1\u56de\u7ed9\u5ba2\u6237\u7aef\u5373\u53ef\u3002\u5f53\u5ba2\u6237\u7aef\u62ff\u5230\u670d\u52a1\u7aef\u7684\u54cd\u5e94\u6570\u636e\u540e\u518d\u5c06\u8be5\u6570\u636e\u8fdb\u884c\u6253\u5370\u8f93\u51fa\uff0c\u6b64\u65f6\u5c31\u80fd\u786e\u4fdd\u670d\u52a1\u7aef\u548c\u5ba2\u6237\u7aef\u80fd\u591f\u6b63\u5e38\u901a\u4fe1\u4e86\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>read\u51fd\u6570<\/p>\n<\/blockquote>\n\n\n\n<p>TCP\u670d\u52a1\u5668\u8bfb\u53d6\u6570\u636e\u7684\u51fd\u6570\u53eb\u505aread\uff0c\u8be5\u51fd\u6570\u7684\u51fd\u6570\u539f\u578b\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>ssize_t read(int fd, void *buf, size_t count);<\/code><\/pre>\n\n\n\n<p>\u53c2\u6570\u8bf4\u660e\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>fd\uff1a\u7279\u5b9a\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\uff0c\u8868\u793a\u4ece\u8be5\u6587\u4ef6\u63cf\u8ff0\u7b26\u4e2d\u8bfb\u53d6\u6570\u636e\u3002<\/li>\n\n\n\n<li>buf\uff1a\u6570\u636e\u7684\u5b58\u50a8\u4f4d\u7f6e\uff0c\u8868\u793a\u5c06\u8bfb\u53d6\u5230\u7684\u6570\u636e\u5b58\u50a8\u5230\u8be5\u4f4d\u7f6e\u3002<\/li>\n\n\n\n<li>count\uff1a\u6570\u636e\u7684\u4e2a\u6570\uff0c\u8868\u793a\u4ece\u8be5\u6587\u4ef6\u63cf\u8ff0\u7b26\u4e2d\u8bfb\u53d6\u6570\u636e\u7684\u5b57\u8282\u6570\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u8fd4\u56de\u503c\u8bf4\u660e\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5982\u679c\u8fd4\u56de\u503c\u5927\u4e8e0\uff0c\u5219\u8868\u793a\u672c\u6b21\u5b9e\u9645\u8bfb\u53d6\u5230\u7684\u5b57\u8282\u4e2a\u6570\u3002<\/li>\n\n\n\n<li>\u5982\u679c\u8fd4\u56de\u503c\u7b49\u4e8e0\uff0c\u5219\u8868\u793a\u5bf9\u7aef\u5df2\u7ecf\u628a\u8fde\u63a5\u5173\u95ed\u4e86\u3002<\/li>\n\n\n\n<li>\u5982\u679c\u8fd4\u56de\u503c\u5c0f\u4e8e0\uff0c\u5219\u8868\u793a\u8bfb\u53d6\u65f6\u9047\u5230\u4e86\u9519\u8bef\u3002<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>read\u8fd4\u56de\u503c\u4e3a0\u8868\u793a\u5bf9\u7aef\u8fde\u63a5\u5173\u95ed<\/p>\n<\/blockquote>\n\n\n\n<p>\u8fd9\u5b9e\u9645\u548c\u672c\u5730\u8fdb\u7a0b\u901a\u4fe1\u4e2d\u7684\u7ba1\u9053\u901a\u4fe1\u662f\u7c7b\u4f3c\u7684\uff0c\u5f53\u4f7f\u7528\u7ba1\u9053\u8fdb\u884c\u901a\u4fe1\u65f6\uff0c\u53ef\u80fd\u4f1a\u51fa\u73b0\u5982\u4e0b\u60c5\u51b5\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5199\u7aef\u8fdb\u7a0b\u4e0d\u5199\uff0c\u8bfb\u7aef\u8fdb\u7a0b\u4e00\u76f4\u8bfb\uff0c\u6b64\u65f6\u8bfb\u7aef\u8fdb\u7a0b\u5c31\u4f1a\u88ab\u6302\u8d77\uff0c\u56e0\u4e3a\u6b64\u65f6\u6570\u636e\u6ca1\u6709\u5c31\u7eea\u3002<\/li>\n\n\n\n<li>\u8bfb\u7aef\u8fdb\u7a0b\u4e0d\u8bfb\uff0c\u5199\u7aef\u8fdb\u7a0b\u4e00\u76f4\u5199\uff0c\u6b64\u65f6\u5f53\u7ba1\u9053\u88ab\u5199\u6ee1\u540e\u5199\u7aef\u8fdb\u7a0b\u5c31\u4f1a\u88ab\u6302\u8d77\uff0c\u56e0\u4e3a\u6b64\u65f6\u7a7a\u95f4\u6ca1\u6709\u5c31\u7eea\u3002<\/li>\n\n\n\n<li>\u5199\u7aef\u8fdb\u7a0b\u5c06\u6570\u636e\u5199\u5b8c\u540e\u5c06\u5199\u7aef\u5173\u95ed\uff0c\u6b64\u65f6\u5f53\u8bfb\u7aef\u8fdb\u7a0b\u5c06\u7ba1\u9053\u5f53\u4e2d\u7684\u6570\u636e\u8bfb\u5b8c\u540e\u5c31\u4f1a\u8bfb\u52300\u3002<\/li>\n\n\n\n<li>\u8bfb\u7aef\u8fdb\u7a0b\u5c06\u8bfb\u7aef\u5173\u95ed\uff0c\u6b64\u65f6\u5199\u7aef\u8fdb\u7a0b\u5c31\u4f1a\u88ab\u64cd\u4f5c\u7cfb\u7edf\u6740\u6389\uff0c\u56e0\u4e3a\u6b64\u65f6\u5199\u7aef\u8fdb\u7a0b\u5199\u5165\u7684\u6570\u636e\u4e0d\u4f1a\u88ab\u8bfb\u53d6\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u8fd9\u91cc\u7684\u5199\u7aef\u5c31\u662f\u5bf9\u5e94\u5ba2\u6237\u7aef\uff0c\u5982\u679c\u5ba2\u6237\u7aef\u5c06\u8fde\u63a5\u5173\u95ed\u4e86\uff0c\u90a3\u4e48\u6b64\u65f6\u670d\u52a1\u7aef\u5c06\u5957\u63a5\u5b57\u5f53\u4e2d\u7684\u4fe1\u606f\u8bfb\u5b8c\u540e\u5c31\u4f1a\u8bfb\u53d6\u52300\uff0c\u56e0\u6b64\u5982\u679c\u670d\u52a1\u7aef\u8c03\u7528read\u51fd\u6570\u540e\u5f97\u5230\u7684\u8fd4\u56de\u503c\u4e3a0\uff0c\u6b64\u65f6\u670d\u52a1\u7aef\u5c31\u4e0d\u5fc5\u518d\u4e3a\u8be5\u5ba2\u6237\u7aef\u63d0\u4f9b\u670d\u52a1\u4e86\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>write\u51fd\u6570<\/p>\n<\/blockquote>\n\n\n\n<p>TCP\u670d\u52a1\u5668\u5199\u5165\u6570\u636e\u7684\u51fd\u6570\u53eb\u505awrite\uff0c\u8be5\u51fd\u6570\u7684\u51fd\u6570\u539f\u578b\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>ssize_t write(int fd, const void *buf,size_t count);<\/code><\/pre>\n\n\n\n<p>\u53c2\u6570\u8bf4\u660e\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>fd\uff1a\u7279\u5b9a\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\uff0c\u8868\u793a\u5c06\u6570\u636e\u5199\u5165\u8be5\u6587\u4ef6\u63cf\u8ff0\u7b26\u5bf9\u5e94\u7684\u5957\u63a5\u5b57\u3002<\/li>\n\n\n\n<li>buf\uff1a\u9700\u8981\u5199\u5165\u7684\u6570\u636e\u3002<\/li>\n\n\n\n<li>count\uff1a\u9700\u8981\u5199\u5165\u6570\u636e\u7684\u5b57\u8282\u4e2a\u6570\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u8fd4\u56de\u503c\u8bf4\u660e\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5199\u5165\u6210\u529f\u8fd4\u56de\u5b9e\u9645\u5199\u5165\u7684\u5b57\u8282\u6570\uff0c\u5199\u5165\u5931\u8d25\u8fd4\u56de-1\uff0c\u540c\u65f6\u9519\u8bef\u7801\u4f1a\u88ab\u8bbe\u7f6e\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u5f53\u670d\u52a1\u7aef\u8c03\u7528read\u51fd\u6570\u6536\u5230\u5ba2\u6237\u7aef\u7684\u6570\u636e\u540e\uff0c\u5c31\u53ef\u4ee5\u518d\u8c03\u7528write\u51fd\u6570\u5c06\u8be5\u6570\u636e\u518d\u54cd\u5e94\u7ed9\u5ba2\u6237\u7aef\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u670d\u52a1\u7aef\u5904\u7406\u8bf7\u6c42<\/p>\n<\/blockquote>\n\n\n\n<p>\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u670d\u52a1\u7aef\u8bfb\u53d6\u6570\u636e\u662f\u4ece\u670d\u52a1\u5957\u63a5\u5b57\u4e2d\u8bfb\u53d6\u7684\uff0c\u800c\u5199\u5165\u6570\u636e\u7684\u65f6\u5019\u4e5f\u662f\u5199\u5165\u8fdb\u670d\u52a1\u5957\u63a5\u5b57\u7684\u3002\u4e5f\u5c31\u662f\u8bf4\u8fd9\u91cc\u4e3a\u5ba2\u6237\u7aef\u63d0\u4f9b\u670d\u52a1\u7684\u5957\u63a5\u5b57\uff0c\u65e2\u53ef\u4ee5\u8bfb\u53d6\u6570\u636e\u4e5f\u53ef\u4ee5\u5199\u5165\u6570\u636e\uff0c\u8fd9\u5c31\u662fTCP\u5168\u53cc\u5de5\u7684\u901a\u4fe1\u7684\u4f53\u73b0\u3002<\/p>\n\n\n\n<p>\u5728\u4ece\u670d\u52a1\u5957\u63a5\u5b57\u4e2d\u8bfb\u53d6\u5ba2\u6237\u7aef\u53d1\u6765\u7684\u6570\u636e\u65f6\uff0c\u5982\u679c\u8c03\u7528read\u51fd\u6570\u540e\u5f97\u5230\u7684\u8fd4\u56de\u503c\u4e3a0\uff0c\u6216\u8005\u8bfb\u53d6\u51fa\u9519\u4e86\uff0c\u6b64\u65f6\u5c31\u5e94\u8be5\u76f4\u63a5\u5c06\u670d\u52a1\u5957\u63a5\u5b57\u5bf9\u5e94\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u5173\u95ed\u3002\u56e0\u4e3a\u6587\u4ef6\u63cf\u8ff0\u7b26\u672c\u8d28\u5c31\u662f\u6570\u7ec4\u7684\u4e0b\u6807\uff0c\u56e0\u6b64\u6587\u4ef6\u63cf\u8ff0\u7b26\u7684\u8d44\u6e90\u662f\u6709\u9650\u7684\uff0c\u5982\u679c\u6211\u4eec\u4e00\u76f4\u5360\u7528\uff0c\u90a3\u4e48\u53ef\u7528\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u5c31\u4f1a\u8d8a\u6765\u8d8a\u5c11\uff0c\u56e0\u6b64\u670d\u52a1\u5b8c\u5ba2\u6237\u7aef\u540e\u8981\u53ca\u65f6\u5173\u95ed\u5bf9\u5e94\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\uff0c\u5426\u5219\u4f1a\u5bfc\u81f4\u6587\u4ef6\u63cf\u8ff0\u7b26\u6cc4\u9732\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>class TcpServer\n{\npublic:\n    void Service(int sock, std::string client_ip, int client_port)\n    {\n        char buffer&#91;1024];\n        while (true){\n            ssize_t size = read(sock, buffer, sizeof(buffer)-1);\n            if (size &gt; 0){ \/\/\u8bfb\u53d6\u6210\u529f\n                buffer&#91;size] = '\\0';\n                std::cout &lt;&lt; \"get a new link-&gt;\" &lt;&lt; sock &lt;&lt; \" &#91;\" &lt;&lt; client_ip &lt;&lt; \"]:\" &lt;&lt; client_port &lt;&lt; std::endl;\n\n                write(sock, buffer, size);\n            }\n            else if (size == 0){ \/\/\u5bf9\u7aef\u5173\u95ed\u8fde\u63a5\n                std::cout &lt;&lt; client_ip &lt;&lt; \":\" &lt;&lt; client_port &lt;&lt; \" close!\" &lt;&lt; std::endl;\n                break;\n            }\n            else{ \/\/\u8bfb\u53d6\u5931\u8d25\n                std::cerr &lt;&lt; sock &lt;&lt; \" read error!\" &lt;&lt; std::endl;\n                break;\n            }\n        }\n        close(sock); \/\/\u5f52\u8fd8\u6587\u4ef6\u63cf\u8ff0\u7b26\n        std::cout &lt;&lt; client_ip &lt;&lt; \":\" &lt;&lt; client_port &lt;&lt; \" service done!\" &lt;&lt; std::endl;\n    }\n    void Start()\n    {\n        for (;;){\n            \/\/\u83b7\u53d6\u8fde\u63a5\n            struct sockaddr_in peer;\n            memset(&amp;peer, '\\0', sizeof(peer));\n            socklen_t len = sizeof(peer);\n            int sock = accept(_listen_sock, (struct sockaddr*)&amp;peer, &amp;len);\n            if (sock &lt; 0){\n                std::cerr &lt;&lt; \"accept error, continue next\" &lt;&lt; std::endl;\n                continue;\n            }\n            std::string client_ip = inet_ntoa(peer.sin_addr);\n            int client_port = ntohs(peer.sin_port);\n            std::cout &lt;&lt; \"get a new link &#91;\" &lt;&lt; client_ip &lt;&lt; \"]:\" &lt;&lt; client_port &lt;&lt; std::endl;\n\n            \/\/\u5904\u7406\u8bf7\u6c42\n            Service(sock, client_ip, client_port);\n        }\n    }\nprivate:\n    int _listen_sock; \/\/\u76d1\u542c\u5957\u63a5\u5b57\n    int _port; \/\/\u7aef\u53e3\u53f7\n};<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u5ba2\u6237\u7aef\u521b\u5efa\u5957\u63a5\u5b57<\/h3>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u540c\u6837\u7684\uff0c\u6211\u4eec\u5c06\u5ba2\u6237\u7aef\u4e5f\u5c01\u88c5\u6210\u4e00\u4e2a\u7c7b\uff0c\u5f53\u6211\u4eec\u5b9a\u4e49\u51fa\u4e00\u4e2a\u5ba2\u6237\u7aef\u5bf9\u8c61\u540e\u4e5f\u9700\u8981\u5bf9\u5176\u8fdb\u884c\u521d\u59cb\u5316\uff0c\u800c\u521d\u59cb\u5316\u5ba2\u6237\u7aef\u552f\u4e00\u9700\u8981\u505a\u7684\u5c31\u662f\u521b\u5efa\u5957\u63a5\u5b57\u3002\u800c\u5ba2\u6237\u7aef\u5728\u8c03\u7528socket\u51fd\u6570\u521b\u5efa\u5957\u63a5\u5b57\u65f6\uff0c\u53c2\u6570\u8bbe\u7f6e\u4e0e\u670d\u52a1\u7aef\u521b\u5efa\u5957\u63a5\u5b57\u65f6\u662f\u4e00\u6837\u7684\u3002<\/p>\n<\/blockquote>\n\n\n\n<p>\u5ba2\u6237\u7aef\u4e0d\u9700\u8981\u8fdb\u884c\u7ed1\u5b9a\u548c\u76d1\u542c\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u670d\u52a1\u7aef\u8981\u8fdb\u884c\u7ed1\u5b9a\u662f\u56e0\u4e3a\u670d\u52a1\u7aef\u7684IP\u5730\u5740\u548c\u7aef\u53e3\u53f7\u5fc5\u987b\u8981\u4f17\u6240\u5468\u77e5\uff0c\u4e0d\u80fd\u968f\u610f\u6539\u53d8\u3002\u800c\u5ba2\u6237\u7aef\u867d\u7136\u4e5f\u9700\u8981IP\u5730\u5740\u548c\u7aef\u53e3\u53f7\uff0c\u4f46\u662f\u5ba2\u6237\u7aef\u5e76\u4e0d\u9700\u8981\u6211\u4eec\u8fdb\u884c\u7ed1\u5b9a\u64cd\u4f5c\uff0c\u5ba2\u6237\u7aef\u8fde\u63a5\u670d\u52a1\u7aef\u65f6\u7cfb\u7edf\u4f1a\u81ea\u52a8\u6307\u5b9a\u4e00\u4e2a\u7aef\u53e3\u53f7\u7ed9\u5ba2\u6237\u7aef\u3002<\/li>\n\n\n\n<li>\u670d\u52a1\u7aef\u9700\u8981\u8fdb\u884c\u76d1\u542c\u662f\u56e0\u4e3a\u670d\u52a1\u7aef\u9700\u8981\u901a\u8fc7\u76d1\u542c\u6765\u83b7\u53d6\u65b0\u8fde\u63a5\uff0c\u4f46\u662f\u4e0d\u4f1a\u6709\u4eba\u4e3b\u52a8\u8fde\u63a5\u5ba2\u6237\u7aef\uff0c\u56e0\u6b64\u5ba2\u6237\u7aef\u662f\u4e0d\u9700\u8981\u8fdb\u884c\u76d1\u542c\u64cd\u4f5c\u7684\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u6b64\u5916\uff0c\u5ba2\u6237\u7aef\u5fc5\u987b\u8981\u77e5\u9053\u5b83\u8981\u8fde\u63a5\u7684\u670d\u52a1\u7aef\u7684IP\u5730\u5740\u548c\u7aef\u53e3\u53f7\uff0c\u56e0\u6b64\u5ba2\u6237\u7aef\u9664\u4e86\u8981\u6709\u81ea\u5df1\u7684\u5957\u63a5\u5b57\u4e4b\u5916\uff0c\u8fd8\u9700\u8981\u77e5\u9053\u670d\u52a1\u7aef\u7684IP\u5730\u5740\u548c\u7aef\u53e3\u53f7\uff0c\u8fd9\u6837\u5ba2\u6237\u7aef\u624d\u80fd\u591f\u901a\u8fc7\u5957\u63a5\u5b57\u5411\u6307\u5b9a\u670d\u52a1\u5668\u8fdb\u884c\u901a\u4fe1\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>class TcpClient\n{\npublic:\n    TcpClient(std::string server_ip, int server_port)\n        : _sock(-1)\n        , _server_ip(server_ip)\n        , _server_port(server_port)\n    {}\n    void InitClient()\n    {\n        \/\/\u521b\u5efa\u5957\u63a5\u5b57\n        _sock = socket(AF_INET, SOCK_STREAM, 0);\n        if (_sock &lt; 0){\n            std::cerr &lt;&lt; \"socket error\" &lt;&lt; std::endl;\n            exit(2);\n        }\n    }\n    ~TcpClient()\n    {\n        if (_sock &gt;= 0){\n            close(_sock);\n        }\n    }\nprivate:\n    int _sock; \/\/\u5957\u63a5\u5b57\n    std::string _server_ip; \/\/\u670d\u52a1\u7aefIP\u5730\u5740\n    int _server_port; \/\/\u670d\u52a1\u7aef\u7aef\u53e3\u53f7\n};<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u5ba2\u6237\u7aef\u8fde\u63a5\u670d\u52a1\u5668<\/h3>\n\n\n\n<p>\u7531\u4e8e\u5ba2\u6237\u7aef\u4e0d\u9700\u8981\u7ed1\u5b9a\uff0c\u4e5f\u4e0d\u9700\u8981\u76d1\u542c\uff0c\u56e0\u6b64\u5f53\u5ba2\u6237\u7aef\u521b\u5efa\u5b8c\u5957\u63a5\u5b57\u540e\u5c31\u53ef\u4ee5\u5411\u670d\u52a1\u7aef\u53d1\u8d77\u8fde\u63a5\u8bf7\u6c42\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>connect\u51fd\u6570<\/p>\n<\/blockquote>\n\n\n\n<p>\u53d1\u8d77\u8fde\u63a5\u8bf7\u6c42\u7684\u51fd\u6570\u53eb\u505aconnect\uff0c\u8be5\u51fd\u6570\u7684\u51fd\u6570\u539f\u578b\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>int connect(int sockfd, const struct sockaddr* addr, socklen_t addrlen);<\/code><\/pre>\n\n\n\n<p>\u53c2\u6570\u8bf4\u660e\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>sockfd\uff1a\u7279\u5b9a\u7684\u5957\u63a5\u5b57\uff0c\u8868\u793a\u901a\u8fc7\u8be5\u5957\u63a5\u5b57\u53d1\u8d77\u8fde\u63a5\u8bf7\u6c42\u3002<\/li>\n\n\n\n<li>addr\uff1a\u5bf9\u7aef\u7f51\u7edc\u76f8\u5173\u7684\u5c5e\u6027\u4fe1\u606f\uff0c\u5305\u62ec\u534f\u8bae\u5bb6\u65cf\u3001IP\u5730\u5740\u3001\u7aef\u53e3\u53f7\u7b49\u7b49\u3002<\/li>\n\n\n\n<li>addrlen\uff1a\u4f20\u5165\u7684addr\u7ed3\u6784\u4f53\u7684\u957f\u5ea6\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u8fd4\u56de\u503c\u8bf4\u660e\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u8fde\u63a5\u6216\u7ed1\u5b9a\u6210\u529f\u8fd4\u56de0\uff0c\u8fde\u63a5\u5931\u8d25\u8fd4\u56de-1\uff0c\u540c\u65f6\u9519\u8bef\u7801\u4f1a\u88ab\u8bbe\u7f6e\u3002<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u5ba2\u6237\u7aef\u8fde\u63a5\u670d\u52a1\u5668<\/p>\n<\/blockquote>\n\n\n\n<p>\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c \u5ba2\u6237\u7aef\u4e0d\u662f\u4e0d\u9700\u8981\u8fdb\u884c\u7ed1\u5b9a\uff0c\u800c\u662f\u4e0d\u9700\u8981\u6211\u4eec\u81ea\u5df1\u8fdb\u884c\u7ed1\u5b9a\u64cd\u4f5c\uff0c\u5f53\u5ba2\u6237\u7aef\u5411\u670d\u52a1\u7aef\u53d1\u8d77\u8fde\u63a5\u8bf7\u6c42\u65f6\uff0c\u7cfb\u7edf\u4f1a\u7ed9\u5ba2\u6237\u7aef\u968f\u673a\u6307\u5b9a\u4e00\u4e2a\u7aef\u53e3\u53f7\u8fdb\u884c\u7ed1\u5b9a\u3002\u56e0\u4e3a\u901a\u4fe1\u53cc\u65b9\u90fd\u5fc5\u987b\u8981\u6709IP\u5730\u5740\u548c\u7aef\u53e3\u53f7\uff0c\u5426\u5219\u65e0\u6cd5\u552f\u4e00\u6807\u8bc6\u901a\u4fe1\u53cc\u65b9\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u5982\u679cconnect\u51fd\u6570\u8c03\u7528\u6210\u529f\u4e86\uff0c\u5ba2\u6237\u7aef\u672c\u5730\u4f1a\u968f\u673a\u7ed9\u8be5\u5ba2\u6237\u7aef\u7ed1\u5b9a\u4e00\u4e2a\u7aef\u53e3\u53f7\u53d1\u9001\u7ed9\u5bf9\u7aef\u670d\u52a1\u5668\u3002<\/p>\n\n\n\n<p>\u6b64\u5916\uff0c\u8c03\u7528connect\u51fd\u6570\u5411\u670d\u52a1\u5668\u53d1\u8d77\u8fde\u63a5\u8bf7\u6c42\u65f6\uff0c\u9700\u8981\u4f20\u5165\u670d\u52a1\u7aef\u5bf9\u5e94\u7684\u7f51\u7edc\u4fe1\u606f\uff0c\u5426\u5219connect\u51fd\u6570\u4e5f\u4e0d\u77e5\u9053\u8be5\u5ba2\u6237\u7aef\u5230\u5e95\u662f\u8981\u5411\u54ea\u4e00\u4e2a\u670d\u52a1\u7aef\u53d1\u8d77\u8fde\u63a5\u8bf7\u6c42\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>class TcpClient\n{\npublic:\n    void Start()\n    {\n        struct sockaddr_in peer;\n        memset(&amp;peer, '\\0', sizeof(peer));\n        peer.sin_family = AF_INET;\n        peer.sin_port = htons(_server_port);\n        peer.sin_addr.s_addr = inet_addr(_server_ip.c_str());\n\n        if (connect(_sock, (struct sockaddr*)&amp;peer, sizeof(peer)) == 0){ \/\/connect success\n            std::cout &lt;&lt; \"connect success...\" &lt;&lt; std::endl;\n            Request(); \/\/\u53d1\u8d77\u8bf7\u6c42\n        }\n        else{ \/\/connect error\n            std::cerr &lt;&lt; \"connect failed...\" &lt;&lt; std::endl;\n            exit(3);\n        }\n    }\nprivate:\n    int _sock; \/\/\u5957\u63a5\u5b57\n    std::string _server_ip; \/\/\u670d\u52a1\u7aefIP\u5730\u5740\n    int _server_port; \/\/\u670d\u52a1\u7aef\u7aef\u53e3\u53f7\n};<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u5ba2\u6237\u7aef\u53d1\u8d77\u8bf7\u6c42<\/h3>\n\n\n\n<p>\u7531\u4e8e\u6211\u4eec\u5b9e\u73b0\u7684\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u56de\u58f0\u670d\u52a1\u5668\uff0c\u56e0\u6b64\u5f53\u5ba2\u6237\u7aef\u8fde\u63a5\u5230\u670d\u52a1\u7aef\u540e\uff0c\u5ba2\u6237\u7aef\u5c31\u53ef\u4ee5\u5411\u670d\u52a1\u7aef\u53d1\u9001\u6570\u636e\u4e86\uff0c\u8fd9\u91cc\u6211\u4eec\u53ef\u4ee5\u8ba9\u5ba2\u6237\u7aef\u5c06\u7528\u6237\u8f93\u5165\u7684\u6570\u636e\u53d1\u9001\u7ed9\u670d\u52a1\u7aef\uff0c\u53d1\u9001\u65f6\u8c03\u7528write\u51fd\u6570\u5411\u5957\u63a5\u5b57\u5f53\u4e2d\u5199\u5165\u6570\u636e\u5373\u53ef\u3002<\/p>\n\n\n\n<p>\u5f53\u5ba2\u6237\u7aef\u5c06\u6570\u636e\u53d1\u9001\u7ed9\u670d\u52a1\u7aef\u540e\uff0c\u7531\u4e8e\u670d\u52a1\u7aef\u8bfb\u53d6\u5230\u6570\u636e\u540e\u8fd8\u4f1a\u8fdb\u884c\u56de\u663e\uff0c\u56e0\u6b64\u5ba2\u6237\u7aef\u5728\u53d1\u9001\u6570\u636e\u540e\u8fd8\u9700\u8981\u8c03\u7528read\u51fd\u6570\u8bfb\u53d6\u670d\u52a1\u7aef\u7684\u54cd\u5e94\u6570\u636e\uff0c\u7136\u540e\u5c06\u8be5\u54cd\u5e94\u6570\u636e\u8fdb\u884c\u6253\u5370\uff0c\u4ee5\u786e\u5b9a\u53cc\u65b9\u901a\u4fe1\u65e0\u8bef\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>class TcpClient\n{\npublic:\n    void Request()\n    {\n        std::string msg;\n        char buffer&#91;1024];\n        while (true){\n            std::cout &lt;&lt; \"Please Enter# \";\n            getline(std::cin, msg);\n\n            write(_sock, msg.c_str(), msg.size());\n\n            ssize_t size = read(_sock, buffer, sizeof(buffer)-1);\n            if (size &gt; 0){\n                buffer&#91;size] = '\\0';\n                std::cout &lt;&lt; \"server echo# \" &lt;&lt; buffer &lt;&lt; std::endl;\n            }\n            else if (size == 0){\n                std::cout &lt;&lt; \"server close!\" &lt;&lt; std::endl;\n                break;\n            }\n            else{\n                std::cerr &lt;&lt; \"read error!\" &lt;&lt; std::endl;\n                break;\n            }\n        }\n    }\n    void Start()\n    {\n        struct sockaddr_in peer;\n        memset(&amp;peer, '\\0', sizeof(peer));\n        peer.sin_family = AF_INET;\n        peer.sin_port = htons(_server_port);\n        peer.sin_addr.s_addr = inet_addr(_server_ip.c_str());\n\n        if (connect(_sock, (struct sockaddr*)&amp;peer, sizeof(peer)) == 0){ \/\/connect success\n            std::cout &lt;&lt; \"connect success...\" &lt;&lt; std::endl;\n            Request(); \/\/\u53d1\u8d77\u8bf7\u6c42\n        }\n        else{ \/\/connect error\n            std::cerr &lt;&lt; \"connect failed...\" &lt;&lt; std::endl;\n            exit(3);\n        }\n    }\nprivate:\n    int _sock; \/\/\u5957\u63a5\u5b57\n    std::string _server_ip; \/\/\u670d\u52a1\u7aefIP\u5730\u5740\n    int _server_port; \/\/\u670d\u52a1\u7aef\u7aef\u53e3\u53f7\n};<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd0\u884c\u5ba2\u6237\u7aef\u7a0b\u5e8f\u65f6\u6211\u4eec\u5c31\u9700\u8981\u643a\u5e26\u4e0a\u670d\u52a1\u7aef\u5bf9\u5e94\u7684IP\u5730\u5740\u548c\u7aef\u53e3\u53f7\uff0c\u7136\u540e\u6211\u4eec\u5c31\u53ef\u4ee5\u901a\u8fc7\u670d\u52a1\u7aef\u7684IP\u5730\u5740\u548c\u7aef\u53e3\u53f7\u6784\u9020\u51fa\u4e00\u4e2a\u5ba2\u6237\u7aef\u5bf9\u8c61\uff0c\u5bf9\u5ba2\u6237\u7aef\u8fdb\u884c\u521d\u59cb\u5316\u540e\u542f\u52a8\u5ba2\u6237\u7aef\u5373\u53ef\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>void Usage(std::string proc)\n{\n    std::cout &lt;&lt; \"Usage: \" &lt;&lt; proc &lt;&lt; \"server_ip server_port\" &lt;&lt; std::endl;\n}\nint main(int argc, char* argv&#91;])\n{\n    if (argc != 3){\n        Usage(argv&#91;0]);\n        exit(1);\n    }\n    std::string server_ip = argv&#91;1];\n    int server_port = atoi(argv&#91;2]);\n    TcpClient* clt = new TcpClient(server_ip, server_port);\n    clt-&gt;InitClient();\n    clt-&gt;Start();\n    return 0;\n}<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u670d\u52a1\u5668\u6d4b\u8bd5<\/h3>\n\n\n\n<p>\u73b0\u5728\u670d\u52a1\u7aef\u548c\u5ba2\u6237\u7aef\u5747\u5df2\u7f16\u5199\u5b8c\u6bd5\uff0c\u4e0b\u9762\u6211\u4eec\u8fdb\u884c\u6d4b\u8bd5\u3002\u6d4b\u8bd5\u65f6\u6211\u4eec\u5148\u542f\u52a8\u670d\u52a1\u5668\uff0c\u7136\u540e\u901a\u8fc7<code>netstat<\/code>\u547d\u4ee4\u8fdb\u884c\u67e5\u770b\uff0c\u6b64\u65f6\u6211\u4eec\u5c31\u80fd\u770b\u5230\u4e00\u4e2a\u540d\u4e3atcp_server\u7684\u670d\u52a1\u8fdb\u7a0b\uff0c\u8be5\u8fdb\u7a0b\u5f53\u524d\u5904\u4e8e\u76d1\u542c\u72b6\u6001\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/cdn.codergodv.xyz\/d427597436254ab0bcb8b17468572c6d.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/cdn.codergodv.xyz\/d427597436254ab0bcb8b17468572c6d.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"img\"\/><\/div><\/figure>\n\n\n\n<p>\u7136\u540e\u518d\u901a\u8fc7<code>.\/tcp_client IP\u5730\u5740 \u7aef\u53e3\u53f7<\/code>\u7684\u5f62\u5f0f\u8fd0\u884c\u5ba2\u6237\u7aef\uff0c\u6b64\u65f6\u5ba2\u6237\u7aef\u5c31\u4f1a\u5411\u670d\u52a1\u7aef\u53d1\u8d77\u8fde\u63a5\u8bf7\u6c42\uff0c\u670d\u52a1\u7aef\u83b7\u53d6\u5230\u8bf7\u6c42\u540e\u5c31\u4f1a\u4e3a\u8be5\u5ba2\u6237\u7aef\u63d0\u4f9b\u670d\u52a1\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/cdn.codergodv.xyz\/97c6df2de97e4feb86a2e9dc6ba08cd2.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/cdn.codergodv.xyz\/97c6df2de97e4feb86a2e9dc6ba08cd2.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"img\"\/><\/div><\/figure>\n\n\n\n<p>\u5f53\u5ba2\u6237\u7aef\u5411\u670d\u52a1\u7aef\u53d1\u9001\u6d88\u606f\u540e\uff0c\u670d\u52a1\u7aef\u53ef\u4ee5\u901a\u8fc7\u6253\u5370\u7684IP\u5730\u5740\u548c\u7aef\u53e3\u53f7\u8bc6\u522b\u51fa\u5bf9\u5e94\u7684\u5ba2\u6237\u7aef\uff0c\u800c\u5ba2\u6237\u7aef\u4e5f\u53ef\u4ee5\u901a\u8fc7\u670d\u52a1\u7aef\u54cd\u5e94\u56de\u6765\u7684\u6d88\u606f\u6765\u5224\u65ad\u670d\u52a1\u7aef\u662f\u5426\u6536\u5230\u4e86\u81ea\u5df1\u53d1\u9001\u7684\u6d88\u606f\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/cdn.codergodv.xyz\/78a77e762057426d8bc8dda5ccddd7f2.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/cdn.codergodv.xyz\/78a77e762057426d8bc8dda5ccddd7f2.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"img\"\/><\/div><\/figure>\n\n\n\n<p>\u5982\u679c\u6b64\u65f6\u5ba2\u6237\u7aef\u9000\u51fa\u4e86\uff0c\u90a3\u4e48\u670d\u52a1\u7aef\u5728\u8c03\u7528read\u51fd\u6570\u65f6\u5f97\u5230\u7684\u8fd4\u56de\u503c\u5c31\u662f0\uff0c\u6b64\u65f6\u670d\u52a1\u7aef\u4e5f\u5c31\u77e5\u9053\u5ba2\u6237\u7aef\u9000\u51fa\u4e86\uff0c\u8fdb\u800c\u4f1a\u7ec8\u6b62\u5bf9\u8be5\u5ba2\u6237\u7aef\u7684\u670d\u52a1\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/cdn.codergodv.xyz\/390e3801848d4b8aa235a17c355bad6c.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/cdn.codergodv.xyz\/390e3801848d4b8aa235a17c355bad6c.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"img\"\/><\/div><\/figure>\n\n\n\n<p><strong>\u6ce8\u610f\uff1a<\/strong> \u6b64\u65f6\u662f\u670d\u52a1\u7aef\u5bf9\u8be5\u5ba2\u6237\u7aef\u7684\u670d\u52a1\u7ec8\u6b62\u4e86\uff0c\u800c\u4e0d\u662f\u670d\u52a1\u5668\u7ec8\u6b62\u4e86\uff0c\u6b64\u65f6\u670d\u52a1\u5668\u4f9d\u65e7\u5728\u8fd0\u884c\uff0c\u5b83\u5728\u7b49\u5f85\u4e0b\u4e00\u4e2a\u5ba2\u6237\u7aef\u7684\u8fde\u63a5\u8bf7\u6c42\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u5355\u6267\u884c\u6d41\u670d\u52a1\u5668\u7684\u5f0a\u7aef<\/h3>\n\n\n\n<p>\u5f53\u6211\u4eec\u4ec5\u7528\u4e00\u4e2a\u5ba2\u6237\u7aef\u8fde\u63a5\u670d\u52a1\u7aef\u65f6\uff0c\u8fd9\u4e00\u4e2a\u5ba2\u6237\u7aef\u80fd\u591f\u6b63\u5e38\u4eab\u53d7\u5230\u670d\u52a1\u7aef\u7684\u670d\u52a1\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/cdn.codergodv.xyz\/81635c79d8c04cdcb5453a8c75e8a9ae.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/cdn.codergodv.xyz\/81635c79d8c04cdcb5453a8c75e8a9ae.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"img\"\/><\/div><\/figure>\n\n\n\n<p>\u4f46\u5728\u8fd9\u4e2a\u5ba2\u6237\u7aef\u6b63\u5728\u4eab\u53d7\u670d\u52a1\u7aef\u7684\u670d\u52a1\u65f6\uff0c\u6211\u4eec\u8ba9\u53e6\u4e00\u4e2a\u5ba2\u6237\u7aef\u4e5f\u8fde\u63a5\u670d\u52a1\u5668\uff0c\u6b64\u65f6\u867d\u7136\u5728\u5ba2\u6237\u7aef\u663e\u793a\u8fde\u63a5\u662f\u6210\u529f\u7684\uff0c\u4f46\u8fd9\u4e2a\u5ba2\u6237\u7aef\u53d1\u9001\u7ed9\u670d\u52a1\u7aef\u7684\u6d88\u606f\u65e2\u6ca1\u6709\u5728\u670d\u52a1\u7aef\u8fdb\u884c\u6253\u5370\uff0c\u670d\u52a1\u7aef\u4e5f\u6ca1\u6709\u5c06\u8be5\u6570\u636e\u56de\u663e\u7ed9\u8be5\u5ba2\u6237\u7aef\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/cdn.codergodv.xyz\/2e158377b105470db55d20da03ec3773.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/cdn.codergodv.xyz\/2e158377b105470db55d20da03ec3773.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"img\"\/><\/div><\/figure>\n\n\n\n<p>\u53ea\u6709\u5f53\u7b2c\u4e00\u4e2a\u5ba2\u6237\u7aef\u9000\u51fa\u540e\uff0c\u670d\u52a1\u7aef\u624d\u4f1a\u5c06\u7b2c\u4e8c\u4e2a\u5ba2\u6237\u7aef\u53d1\u6765\u662f\u6570\u636e\u8fdb\u884c\u6253\u5370\uff0c\u5e76\u56de\u663e\u8be5\u7b2c\u4e8c\u4e2a\u5ba2\u6237\u7aef\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/cdn.codergodv.xyz\/0c4ac20df3bc40829b96e939b1e05bbe.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/cdn.codergodv.xyz\/0c4ac20df3bc40829b96e939b1e05bbe.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"img\"\/><\/div><\/figure>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u5355\u6267\u884c\u6d41\u7684\u670d\u52a1\u5668<\/p>\n<\/blockquote>\n\n\n\n<p>\u901a\u8fc7\u5b9e\u9a8c\u73b0\u8c61\u53ef\u4ee5\u770b\u5230\uff0c\u8fd9\u670d\u52a1\u7aef\u53ea\u6709\u670d\u52a1\u5b8c\u4e00\u4e2a\u5ba2\u6237\u7aef\u540e\u624d\u4f1a\u670d\u52a1\u53e6\u4e00\u4e2a\u5ba2\u6237\u7aef\u3002\u56e0\u4e3a\u6211\u4eec\u76ee\u524d\u6240\u5199\u7684\u662f\u4e00\u4e2a\u5355\u6267\u884c\u6d41\u7248\u7684\u670d\u52a1\u5668\uff0c\u8fd9\u4e2a\u670d\u52a1\u5668\u4e00\u6b21\u53ea\u80fd\u4e3a\u4e00\u4e2a\u5ba2\u6237\u7aef\u63d0\u4f9b\u670d\u52a1\u3002<\/p>\n\n\n\n<p>\u5f53\u670d\u52a1\u7aef\u8c03\u7528accept\u51fd\u6570\u83b7\u53d6\u5230\u8fde\u63a5\u540e\u5c31\u7ed9\u8be5\u5ba2\u6237\u7aef\u63d0\u4f9b\u670d\u52a1\uff0c\u4f46\u5728\u670d\u52a1\u7aef\u63d0\u4f9b\u670d\u52a1\u671f\u95f4\u53ef\u80fd\u4f1a\u6709\u5176\u4ed6\u5ba2\u6237\u7aef\u53d1\u8d77\u8fde\u63a5\u8bf7\u6c42\uff0c\u4f46\u7531\u4e8e\u5f53\u524d\u670d\u52a1\u5668\u662f\u4f46\u6267\u884c\u6d41\u7684\uff0c\u53ea\u80fd\u670d\u52a1\u5b8c\u5f53\u524d\u5ba2\u6237\u7aef\u540e\u624d\u80fd\u7ee7\u7eed\u670d\u52a1\u4e0b\u4e00\u4e2a\u5ba2\u6237\u7aef\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u5ba2\u6237\u7aef\u4e3a\u4ec0\u4e48\u4f1a\u663e\u793a\u8fde\u63a5\u6210\u529f\uff1f<\/p>\n<\/blockquote>\n\n\n\n<p>\u5f53\u670d\u52a1\u7aef\u5728\u7ed9\u7b2c\u4e00\u4e2a\u5ba2\u6237\u7aef\u63d0\u4f9b\u670d\u52a1\u671f\u95f4\uff0c\u7b2c\u4e8c\u4e2a\u5ba2\u6237\u7aef\u5411\u670d\u52a1\u7aef\u53d1\u8d77\u7684\u8fde\u63a5\u8bf7\u6c42\u662f\u6210\u529f\u7684\uff0c\u53ea\u4e0d\u8fc7\u670d\u52a1\u7aef\u6ca1\u6709\u8c03\u7528accept\u51fd\u6570\u5c06\u8be5\u8fde\u63a5\u83b7\u53d6\u4e0a\u6765\u7f62\u4e86\u3002<\/p>\n\n\n\n<p>\u5b9e\u9645\u5728\u5e95\u5c42\u4f1a\u4e3a\u6211\u4eec\u7ef4\u62a4\u4e00\u4e2a\u8fde\u63a5\u961f\u5217\uff0c\u670d\u52a1\u7aef\u6ca1\u6709accept\u7684\u65b0\u8fde\u63a5\u5c31\u4f1a\u653e\u5230\u8fd9\u4e2a\u8fde\u63a5\u961f\u5217\u5f53\u4e2d\uff0c\u800c\u8fd9\u4e2a\u8fde\u63a5\u961f\u5217\u7684\u6700\u5927\u957f\u5ea6\u5c31\u662f\u901a\u8fc7listen\u51fd\u6570\u7684\u7b2c\u4e8c\u4e2a\u53c2\u6570\u6765\u6307\u5b9a\u7684\uff0c\u56e0\u6b64\u670d\u52a1\u7aef\u867d\u7136\u6ca1\u6709\u83b7\u53d6\u7b2c\u4e8c\u4e2a\u5ba2\u6237\u7aef\u53d1\u6765\u7684\u8fde\u63a5\u8bf7\u6c42\uff0c\u4f46\u662f\u5728\u7b2c\u4e8c\u4e2a\u5ba2\u6237\u7aef\u90a3\u91cc\u663e\u793a\u662f\u8fde\u63a5\u6210\u529f\u7684\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u5982\u4f55\u89e3\u51b3\uff1f<\/p>\n<\/blockquote>\n\n\n\n<p>\u5355\u6267\u884c\u6d41\u7684\u670d\u52a1\u5668\u4e00\u6b21\u53ea\u80fd\u7ed9\u4e00\u4e2a\u5ba2\u6237\u7aef\u63d0\u4f9b\u670d\u52a1\uff0c\u6b64\u65f6\u670d\u52a1\u5668\u7684\u8d44\u6e90\u5e76\u6ca1\u6709\u5f97\u5230\u5145\u5206\u5229\u7528\uff0c\u56e0\u6b64\u670d\u52a1\u5668\u4e00\u822c\u662f\u4e0d\u4f1a\u5199\u6210\u5355\u6267\u884c\u6d41\u7684\u3002\u8981\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u5c31\u9700\u8981\u5c06\u670d\u52a1\u5668\u6539\u4e3a\u591a\u6267\u884c\u6d41\u7684\uff0c\u6b64\u65f6\u5c31\u8981\u5f15\u5165\u591a\u8fdb\u7a0b\u6216\u8005\u591a\u7ebf\u7a0b\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u591a\u8fdb\u7a0b\u7248\u7684TCP\u7f51\u7edc\u7a0b\u5e8f<\/h2>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u6211\u4eec\u53ef\u4ee5\u5c06\u5f53\u524d\u7684\u5355\u6267\u884c\u6d41\u670d\u52a1\u5668\u6539\u4e3a\u591a\u8fdb\u7a0b\u7248\u7684\u670d\u52a1\u5668\u3002<\/p>\n<\/blockquote>\n\n\n\n<p>\u5f53\u670d\u52a1\u7aef\u8c03\u7528accept\u51fd\u6570\u83b7\u53d6\u5230\u65b0\u8fde\u63a5\u540e\u4e0d\u662f\u7531\u5f53\u524d\u6267\u884c\u6d41\u4e3a\u8be5\u8fde\u63a5\u63d0\u4f9b\u670d\u52a1\uff0c\u800c\u662f\u5f53\u524d\u6267\u884c\u6d41\u8c03\u7528fork\u51fd\u6570\u521b\u5efa\u5b50\u8fdb\u7a0b\uff0c\u7136\u540e\u8ba9\u5b50\u8fdb\u7a0b\u4e3a\u7236\u8fdb\u7a0b\u83b7\u53d6\u5230\u7684\u8fde\u63a5\u63d0\u4f9b\u670d\u52a1\u3002<\/p>\n\n\n\n<p>\u7531\u4e8e\u7236\u5b50\u8fdb\u7a0b\u662f\u4e24\u4e2a\u4e0d\u540c\u7684\u6267\u884c\u6d41\uff0c\u5f53\u7236\u8fdb\u7a0b\u8c03\u7528fork\u521b\u5efa\u51fa\u5b50\u8fdb\u7a0b\u540e\uff0c\u7236\u8fdb\u7a0b\u5c31\u53ef\u4ee5\u7ee7\u7eed\u4ece\u76d1\u542c\u5957\u63a5\u5b57\u5f53\u4e2d\u83b7\u53d6\u65b0\u8fde\u63a5\uff0c\u800c\u4e0d\u7528\u5173\u5fc3\u83b7\u53d6\u4e0a\u6765\u7684\u8fde\u63a5\u662f\u5426\u670d\u52a1\u5b8c\u6bd5\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u5b50\u8fdb\u7a0b\u7ee7\u627f\u7236\u8fdb\u7a0b\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u8868<\/p>\n<\/blockquote>\n\n\n\n<p>\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u6587\u4ef6\u63cf\u8ff0\u7b26\u8868\u662f\u96b6\u5c5e\u4e8e\u4e00\u4e2a\u8fdb\u7a0b\u7684\uff0c\u5b50\u8fdb\u7a0b\u521b\u5efa\u540e\u4f1a\u7ee7\u627f\u7236\u8fdb\u7a0b\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u8868\u3002\u6bd4\u5982\u7236\u8fdb\u7a0b\u6253\u5f00\u4e86\u4e00\u4e2a\u6587\u4ef6\uff0c\u8be5\u6587\u4ef6\u5bf9\u5e94\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u662f3\uff0c\u6b64\u65f6\u7236\u8fdb\u7a0b\u521b\u5efa\u7684\u5b50\u8fdb\u7a0b\u76843\u53f7\u6587\u4ef6\u63cf\u8ff0\u7b26\u4e5f\u4f1a\u6307\u5411\u8fd9\u4e2a\u6253\u5f00\u7684\u6587\u4ef6\uff0c\u800c\u5982\u679c\u5b50\u8fdb\u7a0b\u518d\u521b\u5efa\u4e00\u4e2a\u5b50\u8fdb\u7a0b\uff0c\u90a3\u4e48\u5b50\u8fdb\u7a0b\u521b\u5efa\u7684\u5b50\u8fdb\u7a0b\u76843\u53f7\u6587\u4ef6\u63cf\u8ff0\u7b26\u4e5f\u540c\u6837\u4f1a\u6307\u5411\u8fd9\u4e2a\u6253\u5f00\u7684\u6587\u4ef6\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/cdn.codergodv.xyz\/cce6d523d18446948e4d33b92b1a741f.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/cdn.codergodv.xyz\/cce6d523d18446948e4d33b92b1a741f.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"img\"\/><\/div><\/figure>\n\n\n\n<p>\u4f46\u5f53\u7236\u8fdb\u7a0b\u521b\u5efa\u5b50\u8fdb\u7a0b\u540e\uff0c\u7236\u5b50\u8fdb\u7a0b\u4e4b\u95f4\u4f1a\u4fdd\u6301\u72ec\u7acb\u6027\uff0c\u6b64\u65f6\u7236\u8fdb\u7a0b\u6587\u4ef6\u63cf\u8ff0\u7b26\u8868\u7684\u53d8\u5316\u4e0d\u4f1a\u5f71\u54cd\u5b50\u8fdb\u7a0b\u3002\u6700\u5178\u578b\u7684\u4ee3\u8868\u5c31\u662f\u533f\u540d\u7ba1\u9053\uff0c\u7236\u5b50\u8fdb\u7a0b\u5728\u4f7f\u7528\u533f\u540d\u7ba1\u9053\u8fdb\u884c\u901a\u4fe1\u65f6\uff0c\u7236\u8fdb\u7a0b\u5148\u8c03\u7528pipe\u51fd\u6570\u5f97\u5230\u4e24\u4e2a\u6587\u4ef6\u63cf\u8ff0\u7b26\uff0c\u4e00\u4e2a\u662f\u7ba1\u9053\u8bfb\u7aef\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\uff0c\u4e00\u4e2a\u662f\u7ba1\u9053\u5199\u7aef\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\uff0c\u6b64\u65f6\u7236\u8fdb\u7a0b\u521b\u5efa\u51fa\u6765\u7684\u5b50\u8fdb\u7a0b\u5c31\u4f1a\u7ee7\u627f\u8fd9\u4e24\u4e2a\u6587\u4ef6\u63cf\u8ff0\u7b26\uff0c\u4e4b\u540e\u7236\u5b50\u8fdb\u7a0b\u4e00\u4e2a\u5173\u95ed\u7ba1\u9053\u7684\u8bfb\u7aef\uff0c\u53e6\u4e00\u4e2a\u5173\u95ed\u7ba1\u9053\u7684\u5199\u7aef\uff0c\u8fd9\u65f6\u7236\u5b50\u8fdb\u7a0b\u6587\u4ef6\u63cf\u8ff0\u7b26\u8868\u7684\u53d8\u5316\u662f\u4e0d\u4f1a\u76f8\u4e92\u5f71\u54cd\u7684\uff0c\u6b64\u540e\u7236\u5b50\u8fdb\u7a0b\u5c31\u53ef\u4ee5\u901a\u8fc7\u8fd9\u4e2a\u7ba1\u9053\u8fdb\u884c\u5355\u5411\u901a\u4fe1\u4e86\u3002<\/p>\n\n\n\n<p>\u5bf9\u4e8e\u5957\u63a5\u5b57\u6587\u4ef6\u4e5f\u662f\u4e00\u6837\u7684\uff0c\u7236\u8fdb\u7a0b\u521b\u5efa\u7684\u5b50\u8fdb\u7a0b\u4e5f\u4f1a\u7ee7\u627f\u7236\u8fdb\u7a0b\u7684\u5957\u63a5\u5b57\u6587\u4ef6\uff0c\u6b64\u65f6\u5b50\u8fdb\u7a0b\u5c31\u80fd\u5bf9\u7279\u5b9a\u7684\u5957\u63a5\u5b57\u6587\u4ef6\u8fdb\u884c\u8bfb\u5199\u64cd\u4f5c\uff0c\u8fdb\u800c\u5b8c\u6210\u5bf9\u5bf9\u5e94\u5ba2\u6237\u7aef\u7684\u670d\u52a1\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u7b49\u5f85\u5b50\u8fdb\u7a0b\u95ee\u9898<\/p>\n<\/blockquote>\n\n\n\n<p>\u5f53\u7236\u8fdb\u7a0b\u521b\u5efa\u51fa\u5b50\u8fdb\u7a0b\u540e\uff0c\u7236\u8fdb\u7a0b\u662f\u9700\u8981\u7b49\u5f85\u5b50\u8fdb\u7a0b\u9000\u51fa\u7684\uff0c\u5426\u5219\u5b50\u8fdb\u7a0b\u4f1a\u53d8\u6210\u50f5\u5c38\u8fdb\u7a0b\uff0c\u8fdb\u800c\u9020\u6210\u5185\u5b58\u6cc4\u6f0f\u3002\u56e0\u6b64\u670d\u52a1\u7aef\u521b\u5efa\u5b50\u8fdb\u7a0b\u540e\u9700\u8981\u8c03\u7528wait\u6216waitpid\u51fd\u6570\u5bf9\u5b50\u8fdb\u7a0b\u8fdb\u884c\u7b49\u5f85\u3002<\/p>\n\n\n\n<p>\u963b\u585e\u5f0f\u7b49\u5f85\u6216\u975e\u963b\u585e\u5f0f\u7b49\u5f85\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5982\u679c\u670d\u52a1\u7aef\u91c7\u7528\u963b\u585e\u7684\u65b9\u5f0f\u7b49\u5f85\u5b50\u8fdb\u7a0b\uff0c\u90a3\u4e48\u670d\u52a1\u7aef\u8fd8\u662f\u9700\u8981\u7b49\u5f85\u670d\u52a1\u5b8c\u5f53\u524d\u5ba2\u6237\u7aef\uff0c\u624d\u80fd\u7ee7\u7eed\u83b7\u53d6\u4e0b\u4e00\u4e2a\u8fde\u63a5\u8bf7\u6c42\uff0c\u6b64\u65f6\u670d\u52a1\u7aef\u4ecd\u7136\u662f\u4ee5\u4e00\u79cd\u4e32\u884c\u7684\u65b9\u5f0f\u4e3a\u5ba2\u6237\u7aef\u63d0\u4f9b\u670d\u52a1\u3002<\/li>\n\n\n\n<li>\u5982\u679c\u670d\u52a1\u7aef\u91c7\u7528\u975e\u963b\u585e\u7684\u65b9\u5f0f\u7b49\u5f85\u5b50\u8fdb\u7a0b\uff0c\u867d\u7136\u5728\u5b50\u8fdb\u7a0b\u4e3a\u5ba2\u6237\u7aef\u63d0\u4f9b\u670d\u52a1\u671f\u95f4\u670d\u52a1\u7aef\u53ef\u4ee5\u7ee7\u7eed\u83b7\u53d6\u65b0\u8fde\u63a5\uff0c\u4f46\u6b64\u65f6\u670d\u52a1\u7aef\u5c31\u9700\u8981\u5c06\u6240\u6709\u5b50\u8fdb\u7a0b\u7684PID\u4fdd\u5b58\u4e0b\u6765\uff0c\u5e76\u4e14\u9700\u8981\u4e0d\u65ad\u82b1\u8d39\u65f6\u95f4\u68c0\u6d4b\u5b50\u8fdb\u7a0b\u662f\u5426\u9000\u51fa\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u603b\u4e4b\uff0c\u670d\u52a1\u7aef\u8981\u7b49\u5f85\u5b50\u8fdb\u7a0b\u9000\u51fa\uff0c\u65e0\u8bba\u91c7\u7528\u963b\u585e\u5f0f\u7b49\u5f85\u8fd8\u662f\u975e\u963b\u585e\u5f0f\u7b49\u5f85\uff0c\u90fd\u4e0d\u5c3d\u4eba\u610f\u3002\u6b64\u65f6\u6211\u4eec\u53ef\u4ee5\u8003\u8651\u8ba9\u670d\u52a1\u7aef\u4e0d\u7b49\u5f85\u5b50\u8fdb\u7a0b\u9000\u51fa\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u4e0d\u7b49\u5f85\u8fdb\u7a0b\u9000\u51fa\u7684\u65b9\u5f0f<\/p>\n<\/blockquote>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6355\u6349SIGCHLD\u4fe1\u53f7\uff0c\u5c06\u5176\u5904\u7406\u52a8\u4f5c\u8bbe\u7f6e\u4e3a\u5ffd\u7565\u3002<\/li>\n\n\n\n<li>\u8ba9\u7236\u8fdb\u7a0b\u521b\u5efa\u5b50\u8fdb\u7a0b\uff0c\u5b50\u8fdb\u7a0b\u518d\u521b\u5efa\u5b59\u5b50\u8fdb\u7a0b\uff0c\u6700\u540e\u8ba9\u5b59\u5b50\u8fdb\u7a0b\u4e3a\u5ba2\u6237\u7aef\u63d0\u4f9b\u670d\u52a1\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u6355\u6349SIGCHLD\u4fe1\u53f7<\/h3>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u5b9e\u9645\u5f53\u5b50\u8fdb\u7a0b\u9000\u51fa\u65f6\u4f1a\u7ed9\u7236\u8fdb\u7a0b\u53d1\u9001SIGCHLD\u4fe1\u53f7\uff0c\u5982\u679c\u7236\u8fdb\u7a0b\u5c06SIGCHLD\u4fe1\u53f7\u8fdb\u884c\u6355\u6349\uff0c\u5e76\u5c06\u8be5\u4fe1\u53f7\u7684\u5904\u7406\u52a8\u4f5c\u8bbe\u7f6e\u4e3a\u5ffd\u7565\uff0c\u6b64\u65f6\u7236\u8fdb\u7a0b\u5c31\u53ea\u9700\u4e13\u5fc3\u5904\u7406\u81ea\u5df1\u7684\u5de5\u4f5c\uff0c\u4e0d\u5fc5\u5173\u5fc3\u5b50\u8fdb\u7a0b\u4e86\u3002<\/p>\n<\/blockquote>\n\n\n\n<p>\u8be5\u65b9\u5f0f\u5b9e\u73b0\u8d77\u6765\u975e\u5e38\u7b80\u5355\uff0c\u4e5f\u662f\u6bd4\u8f83\u63a8\u8350\u7684\u4e00\u79cd\u505a\u6cd5\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>class TcpServer\n{\npublic:\n    void Start()\n    {\n        signal(SIGCHLD, SIG_IGN); \/\/\u5ffd\u7565SIGCHLD\u4fe1\u53f7\n        for (;;){\n            \/\/\u83b7\u53d6\u8fde\u63a5\n            struct sockaddr_in peer;\n            memset(&amp;peer, '\\0', sizeof(peer));\n            socklen_t len = sizeof(peer);\n            int sock = accept(_listen_sock, (struct sockaddr*)&amp;peer, &amp;len);\n            if (sock &lt; 0){\n                std::cerr &lt;&lt; \"accept error, continue next\" &lt;&lt; std::endl;\n                continue;\n            }\n            std::string client_ip = inet_ntoa(peer.sin_addr);\n            int client_port = ntohs(peer.sin_port);\n            std::cout &lt;&lt; \"get a new link-&gt;\" &lt;&lt; sock &lt;&lt; \" &#91;\" &lt;&lt; client_ip &lt;&lt; \"]:\" &lt;&lt; client_port &lt;&lt; std::endl;\n\n            pid_t id = fork();\n            if (id == 0){ \/\/child\n                \/\/\u5904\u7406\u8bf7\u6c42\n                Service(sock, client_ip, client_port);\n                exit(0); \/\/\u5b50\u8fdb\u7a0b\u63d0\u4f9b\u5b8c\u670d\u52a1\u9000\u51fa\n            }\n        }\n    }\nprivate:\n    int _listen_sock; \/\/\u76d1\u542c\u5957\u63a5\u5b57\n    int _port; \/\/\u7aef\u53e3\u53f7\n};<\/code><\/pre>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u4ee3\u7801\u6d4b\u8bd5<\/p>\n<\/blockquote>\n\n\n\n<p>\u91cd\u65b0\u7f16\u8bd1\u7a0b\u5e8f\u8fd0\u884c\u670d\u52a1\u7aef\u540e\uff0c\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u76d1\u63a7\u811a\u672c\u5bf9\u670d\u52a1\u8fdb\u7a0b\u8fdb\u884c\u76d1\u63a7\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>while :; do ps axj | head -1 &amp;&amp; ps axj | grep tcp_server | grep -v grep;echo \"######################\";sleep 1;done<\/code><\/pre>\n\n\n\n<p>\u6b64\u65f6\u53ef\u4ee5\u770b\u5230\uff0c\u4e00\u5f00\u59cb\u6ca1\u6709\u5ba2\u6237\u7aef\u8fde\u63a5\u8be5\u670d\u52a1\u5668\uff0c\u6b64\u65f6\u670d\u52a1\u8fdb\u7a0b\u53ea\u6709\u4e00\u4e2a\uff0c\u8be5\u670d\u52a1\u8fdb\u7a0b\u5c31\u662f\u4e0d\u65ad\u83b7\u53d6\u65b0\u8fde\u63a5\u7684\u8fdb\u7a0b\uff0c\u800c\u83b7\u53d6\u5230\u65b0\u8fde\u63a5\u540e\u4e5f\u662f\u7531\u8be5\u8fdb\u7a0b\u521b\u5efa\u5b50\u8fdb\u7a0b\u4e3a\u5bf9\u5e94\u5ba2\u6237\u7aef\u63d0\u4f9b\u670d\u52a1\u7684\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/cdn.codergodv.xyz\/376fd363123e419aa3e6f708553c68ec.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/cdn.codergodv.xyz\/376fd363123e419aa3e6f708553c68ec.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"img\"\/><\/div><\/figure>\n\n\n\n<p>\u6b64\u65f6\u6211\u4eec\u8fd0\u884c\u4e00\u4e2a\u5ba2\u6237\u7aef\uff0c\u8ba9\u8be5\u5ba2\u6237\u7aef\u8fde\u63a5\u670d\u52a1\u5668\uff0c\u6b64\u65f6\u670d\u52a1\u8fdb\u7a0b\u5c31\u4f1a\u8c03\u7528fork\u51fd\u6570\u521b\u5efa\u51fa\u4e00\u4e2a\u5b50\u8fdb\u7a0b\uff0c\u7531\u8be5\u5b50\u8fdb\u7a0b\u4e3a\u8fd9\u4e2a\u5ba2\u6237\u7aef\u63d0\u4f9b\u670d\u52a1\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/cdn.codergodv.xyz\/7919e1e699d54545a78192d3b68f7b29.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/cdn.codergodv.xyz\/7919e1e699d54545a78192d3b68f7b29.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"img\"\/><\/div><\/figure>\n\n\n\n<p>\u5982\u679c\u518d\u6709\u4e00\u4e2a\u5ba2\u6237\u7aef\u8fde\u63a5\u670d\u52a1\u5668\uff0c\u6b64\u65f6\u670d\u52a1\u8fdb\u7a0b\u4f1a\u518d\u521b\u5efa\u51fa\u4e00\u4e2a\u5b50\u8fdb\u7a0b\uff0c\u8ba9\u8be5\u5b50\u8fdb\u7a0b\u4e3a\u8fd9\u4e2a\u5ba2\u6237\u7aef\u63d0\u4f9b\u670d\u52a1\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/cdn.codergodv.xyz\/21f772114b7e460b86e2803b66a2879d.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/cdn.codergodv.xyz\/21f772114b7e460b86e2803b66a2879d.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"img\"\/><\/div><\/figure>\n\n\n\n<p>\u6700\u91cd\u8981\u7684\u662f\uff0c\u7531\u4e8e\u8fd9\u4e24\u4e2a\u5ba2\u6237\u7aef\u5206\u522b\u7531\u4e24\u4e2a\u4e0d\u540c\u7684\u6267\u884c\u6d41\u63d0\u4f9b\u670d\u52a1\uff0c\u56e0\u6b64\u8fd9\u4e24\u4e2a\u5ba2\u6237\u7aef\u53ef\u4ee5\u540c\u65f6\u4eab\u53d7\u5230\u670d\u52a1\uff0c\u5b83\u4eec\u53d1\u9001\u7ed9\u670d\u52a1\u7aef\u7684\u6570\u636e\u90fd\u80fd\u591f\u518d\u670d\u52a1\u7aef\u8f93\u51fa\uff0c\u5e76\u4e14\u670d\u52a1\u7aef\u4e5f\u4f1a\u5bf9\u5b83\u4eec\u7684\u6570\u636e\u8fdb\u884c\u54cd\u5e94\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/cdn.codergodv.xyz\/965f607e576b4c7fa14481f95123e50e.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/cdn.codergodv.xyz\/965f607e576b4c7fa14481f95123e50e.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"img\"\/><\/div><\/figure>\n\n\n\n<p>\u5f53\u5ba2\u6237\u7aef\u4e00\u4e2a\u4e2a\u9000\u51fa\u540e\uff0c\u5728\u670d\u52a1\u7aef\u5bf9\u5e94\u4e3a\u4e4b\u63d0\u4f9b\u670d\u52a1\u7684\u5b50\u8fdb\u7a0b\u4e5f\u4f1a\u76f8\u7ee7\u9000\u51fa\uff0c\u4f46\u65e0\u8bba\u5982\u4f55\u670d\u52a1\u7aef\u90fd\u81f3\u5c11\u4f1a\u6709\u4e00\u4e2a\u670d\u52a1\u8fdb\u7a0b\uff0c\u8fd9\u4e2a\u670d\u52a1\u8fdb\u7a0b\u7684\u4efb\u52a1\u5c31\u662f\u4e0d\u65ad\u83b7\u53d6\u65b0\u8fde\u63a5\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/cdn.codergodv.xyz\/91c81290df3943cfba68ece088e50585.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/cdn.codergodv.xyz\/91c81290df3943cfba68ece088e50585.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"img\"\/><\/div><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u8ba9\u5b59\u5b50\u8fdb\u7a0b\u63d0\u4f9b\u670d\u52a1<\/h3>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u6211\u4eec\u4e5f\u53ef\u4ee5\u8ba9\u670d\u52a1\u7aef\u521b\u5efa\u51fa\u6765\u7684\u5b50\u8fdb\u7a0b\u518d\u6b21\u8fdb\u884cfork\uff0c\u8ba9\u5b59\u5b50\u8fdb\u7a0b\u4e3a\u5ba2\u6237\u7aef\u63d0\u4f9b\u670d\u52a1\uff0c\u6b64\u65f6\u6211\u4eec\u5c31\u4e0d\u7528\u7b49\u5f85\u5b59\u5b50\u8fdb\u7a0b\u9000\u51fa\u4e86\u3002<\/p>\n<\/blockquote>\n\n\n\n<p>\u547d\u540d\u8bf4\u660e\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u7237\u7237\u8fdb\u7a0b\uff1a\u5728\u670d\u52a1\u7aef\u8c03\u7528accept\u51fd\u6570\u83b7\u53d6\u5ba2\u6237\u7aef\u8fde\u63a5\u8bf7\u6c42\u7684\u8fdb\u7a0b\u3002<\/li>\n\n\n\n<li>\u7238\u7238\u8fdb\u7a0b\uff1a\u7531\u7237\u7237\u8fdb\u7a0b\u8c03\u7528fork\u51fd\u6570\u521b\u5efa\u51fa\u6765\u7684\u8fdb\u7a0b\u3002<\/li>\n\n\n\n<li>\u5b59\u5b50\u8fdb\u7a0b\uff1a\u7531\u7238\u7238\u8fdb\u7a0b\u8c03\u7528fork\u51fd\u6570\u521b\u5efa\u51fa\u6765\u7684\u8fdb\u7a0b\uff0c\u8be5\u8fdb\u7a0b\u8c03\u7528Service\u51fd\u6570\u4e3a\u5ba2\u6237\u7aef\u63d0\u4f9b\u670d\u52a1\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u6211\u4eec\u8ba9\u7238\u7238\u8fdb\u7a0b\u521b\u5efa\u5b8c\u5b59\u5b50\u8fdb\u7a0b\u540e\u7acb\u523b\u9000\u51fa\uff0c\u6b64\u65f6\u670d\u52a1\u8fdb\u7a0b\uff08\u7237\u7237\u8fdb\u7a0b\uff09\u8c03\u7528wait\/waitpid\u51fd\u6570\u7b49\u5f85\u7238\u7238\u8fdb\u7a0b\u5c31\u80fd\u7acb\u523b\u7b49\u5f85\u6210\u529f\uff0c\u6b64\u540e\u670d\u52a1\u8fdb\u7a0b\u5c31\u80fd\u7ee7\u7eed\u8c03\u7528accept\u51fd\u6570\u83b7\u53d6\u5176\u4ed6\u5ba2\u6237\u7aef\u7684\u8fde\u63a5\u8bf7\u6c42\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u4e0d\u9700\u8981\u7b49\u5f85\u5b59\u5b50\u8fdb\u7a0b\u9000\u51fa<\/p>\n<\/blockquote>\n\n\n\n<p>\u800c\u7531\u4e8e\u7238\u7238\u8fdb\u7a0b\u521b\u5efa\u5b8c\u5b59\u5b50\u8fdb\u7a0b\u540e\u5c31\u7acb\u523b\u9000\u51fa\u4e86\uff0c\u56e0\u6b64\u5b9e\u9645\u4e3a\u5ba2\u6237\u7aef\u63d0\u4f9b\u670d\u52a1\u7684\u5b59\u5b50\u8fdb\u7a0b\u5c31\u53d8\u6210\u4e86\u5b64\u513f\u8fdb\u7a0b\uff0c\u8be5\u8fdb\u7a0b\u5c31\u4f1a\u88ab\u7cfb\u7edf\u9886\u517b\uff0c\u5f53\u5b59\u5b50\u8fdb\u7a0b\u4e3a\u5ba2\u6237\u7aef\u63d0\u4f9b\u5b8c\u670d\u52a1\u9000\u51fa\u540e\u7cfb\u7edf\u4f1a\u56de\u6536\u5b59\u5b50\u8fdb\u7a0b\uff0c\u6240\u4ee5\u670d\u52a1\u8fdb\u7a0b\uff08\u7237\u7237\u8fdb\u7a0b\uff09\u662f\u4e0d\u9700\u8981\u7b49\u5f85\u5b59\u5b50\u8fdb\u7a0b\u9000\u51fa\u7684\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u5173\u95ed\u5bf9\u5e94\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26<\/p>\n<\/blockquote>\n\n\n\n<p>\u670d\u52a1\u8fdb\u7a0b\uff08\u7237\u7237\u8fdb\u7a0b\uff09\u8c03\u7528accept\u51fd\u6570\u83b7\u53d6\u5230\u65b0\u8fde\u63a5\u540e\uff0c\u4f1a\u8ba9\u5b59\u5b50\u8fdb\u7a0b\u4e3a\u8be5\u8fde\u63a5\u63d0\u4f9b\u670d\u52a1\uff0c\u6b64\u65f6\u670d\u52a1\u8fdb\u7a0b\u5df2\u7ecf\u5c06\u6587\u4ef6\u63cf\u8ff0\u7b26\u8868\u7ee7\u627f\u7ed9\u4e86\u7238\u7238\u8fdb\u7a0b\uff0c\u800c\u7238\u7238\u8fdb\u7a0b\u53c8\u4f1a\u8c03\u7528fork\u51fd\u6570\u521b\u5efa\u51fa\u5b59\u5b50\u8fdb\u7a0b\uff0c\u7136\u540e\u518d\u5c06\u6587\u4ef6\u63cf\u8ff0\u7b26\u8868\u7ee7\u627f\u7ed9\u5b59\u5b50\u8fdb\u7a0b\u3002<\/p>\n\n\n\n<p>\u800c\u7236\u5b50\u8fdb\u7a0b\u521b\u5efa\u540e\uff0c\u5b83\u4eec\u5404\u81ea\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u8868\u662f\u72ec\u7acb\u7684\uff0c\u4e0d\u4f1a\u76f8\u4e92\u5f71\u54cd\u3002\u56e0\u6b64\u670d\u52a1\u8fdb\u7a0b\u5728\u8c03\u7528fork\u51fd\u6570\u540e\uff0c\u670d\u52a1\u8fdb\u7a0b\u5c31\u4e0d\u9700\u8981\u518d\u5173\u5fc3\u521a\u624d\u4eceaccept\u51fd\u6570\u83b7\u53d6\u5230\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u4e86\uff0c\u6b64\u65f6\u670d\u52a1\u8fdb\u7a0b\u5c31\u53ef\u4ee5\u8c03\u7528close\u51fd\u6570\u5c06\u8be5\u6587\u4ef6\u63cf\u8ff0\u7b26\u8fdb\u884c\u5173\u95ed\u3002<\/p>\n\n\n\n<p>\u540c\u6837\u7684\uff0c\u5bf9\u4e8e\u7238\u7238\u8fdb\u7a0b\u548c\u5b59\u5b50\u8fdb\u7a0b\u6765\u8bf4\uff0c\u5b83\u4eec\u662f\u4e0d\u9700\u8981\u5173\u5fc3\u4ece\u670d\u52a1\u8fdb\u7a0b\uff08\u7237\u7237\u8fdb\u7a0b\uff09\u7ee7\u627f\u4e0b\u6765\u7684\u76d1\u542c\u5957\u63a5\u5b57\u7684\uff0c\u56e0\u6b64\u7238\u7238\u8fdb\u7a0b\u53ef\u4ee5\u5c06\u76d1\u542c\u5957\u63a5\u5b57\u5173\u6389\u3002<\/p>\n\n\n\n<p>\u5173\u95ed\u6587\u4ef6\u63cf\u8ff0\u7b26\u7684\u5fc5\u8981\u6027\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5bf9\u4e8e\u670d\u52a1\u8fdb\u7a0b\u6765\u8bf4\uff0c\u5f53\u5b83\u8c03\u7528fork\u51fd\u6570\u540e\u5c31\u5fc5\u987b\u5c06\u4eceaccept\u51fd\u6570\u83b7\u53d6\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u5173\u6389\u3002\u56e0\u4e3a\u670d\u52a1\u8fdb\u7a0b\u4f1a\u4e0d\u65ad\u8c03\u7528accept\u51fd\u6570\u83b7\u53d6\u65b0\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\uff08\u670d\u52a1\u5957\u63a5\u5b57\uff09\uff0c\u5982\u679c\u670d\u52a1\u8fdb\u7a0b\u4e0d\u53ca\u65f6\u5173\u6389\u4e0d\u7528\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\uff0c\u6700\u7ec8\u670d\u52a1\u8fdb\u7a0b\u4e2d\u53ef\u7528\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u5c31\u4f1a\u8d8a\u6765\u8d8a\u5c11\u3002<\/li>\n\n\n\n<li>\u800c\u5bf9\u4e8e\u7238\u7238\u8fdb\u7a0b\u548c\u5b59\u5b50\u8fdb\u7a0b\u6765\u8bf4\uff0c\u8fd8\u662f\u5efa\u8bae\u5173\u95ed\u4ece\u670d\u52a1\u8fdb\u7a0b\u7ee7\u627f\u4e0b\u6765\u7684\u76d1\u542c\u5957\u63a5\u5b57\u3002\u5b9e\u9645\u5c31\u7b97\u5b83\u4eec\u4e0d\u5173\u95ed\u76d1\u542c\u5957\u63a5\u5b57\uff0c\u6700\u7ec8\u4e5f\u53ea\u4f1a\u5bfc\u81f4\u8fd9\u4e00\u4e2a\u6587\u4ef6\u63cf\u8ff0\u7b26\u6cc4\u9732\uff0c\u4f46\u4e00\u822c\u8fd8\u662f\u5efa\u8bae\u5173\u4e0a\u3002\u56e0\u4e3a\u5b59\u5b50\u8fdb\u7a0b\u5728\u63d0\u4f9b\u670d\u52a1\u65f6\u53ef\u80fd\u4f1a\u5bf9\u76d1\u542c\u5957\u63a5\u5b57\u8fdb\u884c\u67d0\u79cd\u8bef\u64cd\u4f5c\uff0c\u6b64\u65f6\u5c31\u4f1a\u5bf9\u76d1\u542c\u5957\u63a5\u5b57\u5f53\u4e2d\u7684\u6570\u636e\u9020\u6210\u5f71\u54cd\u3002<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>class TcpServer\n{\npublic:\n    void Start()\n    {\n        for (;;){\n            \/\/\u83b7\u53d6\u8fde\u63a5\n            struct sockaddr_in peer;\n            memset(&amp;peer, '\\0', sizeof(peer));\n            socklen_t len = sizeof(peer);\n            int sock = accept(_listen_sock, (struct sockaddr*)&amp;peer, &amp;len);\n            if (sock &lt; 0){\n                std::cerr &lt;&lt; \"accept error, continue next\" &lt;&lt; std::endl;\n                continue;\n            }\n            std::string client_ip = inet_ntoa(peer.sin_addr);\n            int client_port = ntohs(peer.sin_port);\n            std::cout &lt;&lt; \"get a new link-&gt;\" &lt;&lt; sock &lt;&lt; \" &#91;\" &lt;&lt; client_ip &lt;&lt; \"]:\" &lt;&lt; client_port &lt;&lt; std::endl;\n\n            pid_t id = fork();\n            if (id == 0){ \/\/child\n                close(_listen_sock); \/\/child\u5173\u95ed\u76d1\u542c\u5957\u63a5\u5b57\n                if (fork() &gt; 0){\n                    exit(0); \/\/\u7238\u7238\u8fdb\u7a0b\u76f4\u63a5\u9000\u51fa\n                }\n                \/\/\u5904\u7406\u8bf7\u6c42\n                Service(sock, client_ip, client_port); \/\/\u5b59\u5b50\u8fdb\u7a0b\u63d0\u4f9b\u670d\u52a1\n                exit(0); \/\/\u5b59\u5b50\u8fdb\u7a0b\u63d0\u4f9b\u5b8c\u670d\u52a1\u9000\u51fa\n            }\n            close(sock); \/\/father\u5173\u95ed\u4e3a\u8fde\u63a5\u63d0\u4f9b\u670d\u52a1\u7684\u5957\u63a5\u5b57\n            waitpid(id, nullptr, 0); \/\/\u7b49\u5f85\u7238\u7238\u8fdb\u7a0b\uff08\u4f1a\u7acb\u523b\u7b49\u5f85\u6210\u529f\uff09\n        }\n    }\nprivate:\n    int _listen_sock; \/\/\u76d1\u542c\u5957\u63a5\u5b57\n    int _port; \/\/\u7aef\u53e3\u53f7\n};<\/code><\/pre>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u670d\u52a1\u5668\u6d4b\u8bd5<\/p>\n<\/blockquote>\n\n\n\n<p>\u91cd\u65b0\u7f16\u8bd1\u7a0b\u5e8f\u8fd0\u884c\u5ba2\u6237\u7aef\u540e\uff0c\u7ee7\u7eed\u4f7f\u7528\u76d1\u63a7\u811a\u672c\u5bf9\u670d\u52a1\u8fdb\u7a0b\u8fdb\u884c\u5b9e\u65f6\u76d1\u63a7\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>while :; do ps axj | head -1 &amp;&amp; ps axj | grep tcp_server | grep -v grep;echo \"######################\";sleep 1;done<\/code><\/pre>\n\n\n\n<p>\u6b64\u65f6\u6ca1\u6709\u5ba2\u6237\u7aef\u8fde\u63a5\u670d\u52a1\u5668\uff0c\u56e0\u6b64\u4e5f\u662f\u53ea\u76d1\u63a7\u5230\u4e86\u4e00\u4e2a\u670d\u52a1\u8fdb\u7a0b\uff0c\u8be5\u670d\u52a1\u8fdb\u7a0b\u6b63\u5728\u7b49\u5f85\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\u8fde\u63a5\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/cdn.codergodv.xyz\/530e158ab547435b8a038ef34bfb6943.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/cdn.codergodv.xyz\/530e158ab547435b8a038ef34bfb6943.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"img\"\/><\/div><\/figure>\n\n\n\n<p>\u6b64\u65f6\u6211\u4eec\u8fd0\u884c\u4e00\u4e2a\u5ba2\u6237\u7aef\uff0c\u8ba9\u8be5\u5ba2\u6237\u7aef\u8fde\u63a5\u5f53\u524d\u8fd9\u4e2a\u670d\u52a1\u5668\uff0c\u6b64\u65f6\u670d\u52a1\u8fdb\u7a0b\u4f1a\u521b\u5efa\u51fa\u7238\u7238\u8fdb\u7a0b\uff0c\u7238\u7238\u8fdb\u7a0b\u518d\u521b\u5efa\u51fa\u5b59\u5b50\u8fdb\u7a0b\uff0c\u4e4b\u540e\u7238\u7238\u8fdb\u7a0b\u5c31\u4f1a\u7acb\u5373\u9000\u51fa\uff0c\u800c\u7531\u5b59\u5b50\u8fdb\u7a0b\u4e3a\u5ba2\u6237\u7aef\u63d0\u4f9b\u670d\u52a1\u3002\u56e0\u6b64\u8fd9\u65f6\u6211\u4eec\u53ea\u770b\u5230\u4e86\u4e24\u4e2a\u670d\u52a1\u8fdb\u7a0b\uff0c\u5176\u4e2d\u4e00\u4e2a\u662f\u4e00\u5f00\u59cb\u7528\u4e8e\u83b7\u53d6\u8fde\u63a5\u7684\u670d\u52a1\u8fdb\u7a0b\uff0c\u8fd8\u6709\u4e00\u4e2a\u5c31\u662f\u5b59\u5b50\u8fdb\u7a0b\uff0c\u8be5\u8fdb\u7a0b\u4e3a\u5f53\u524d\u5ba2\u6237\u7aef\u63d0\u4f9b\u670d\u52a1\uff0c\u5b83\u7684PPID\u4e3a1\uff0c\u8868\u660e\u8fd9\u662f\u4e00\u4e2a\u5b64\u513f\u8fdb\u7a0b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/cdn.codergodv.xyz\/113c707842ae46feb1951b0af6790025.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/cdn.codergodv.xyz\/113c707842ae46feb1951b0af6790025.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"img\"\/><\/div><\/figure>\n\n\n\n<p>\u5f53\u6211\u4eec\u8fd0\u884c\u7b2c\u4e8c\u4e2a\u5ba2\u6237\u7aef\u8fde\u63a5\u670d\u52a1\u5668\u65f6\uff0c\u6b64\u65f6\u5c31\u53c8\u4f1a\u521b\u5efa\u51fa\u4e00\u4e2a\u5b64\u513f\u8fdb\u7a0b\u4e3a\u8be5\u5ba2\u6237\u7aef\u63d0\u4f9b\u670d\u52a1\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/cdn.codergodv.xyz\/f76bc37a4fd44e428a646fb596422753.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/cdn.codergodv.xyz\/f76bc37a4fd44e428a646fb596422753.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"img\"\/><\/div><\/figure>\n\n\n\n<p>\u6b64\u65f6\u8fd9\u4e24\u4e2a\u5ba2\u6237\u7aef\u662f\u7531\u4e24\u4e2a\u4e0d\u540c\u7684\u5b64\u513f\u8fdb\u7a0b\u63d0\u4f9b\u670d\u52a1\u7684\uff0c\u56e0\u6b64\u5b83\u4eec\u4e5f\u662f\u80fd\u591f\u540c\u65f6\u4eab\u53d7\u5230\u670d\u52a1\u7684\uff0c\u53ef\u4ee5\u770b\u5230\u8fd9\u4e24\u4e2a\u5ba2\u6237\u7aef\u53d1\u9001\u7ed9\u670d\u52a1\u7aef\u7684\u6570\u636e\u90fd\u80fd\u591f\u5728\u670d\u52a1\u7aef\u8f93\u51fa\uff0c\u5e76\u4e14\u670d\u52a1\u7aef\u4e5f\u4f1a\u5bf9\u5b83\u4eec\u7684\u6570\u636e\u8fdb\u884c\u54cd\u5e94\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/cdn.codergodv.xyz\/53dde5cc5c82441f89efa1739d2d837e-168182180676835.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/cdn.codergodv.xyz\/53dde5cc5c82441f89efa1739d2d837e-168182180676835.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"img\"\/><\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u591a\u7ebf\u7a0b\u7248\u7684TCP\u7f51\u7edc\u7a0b\u5e8f<\/h2>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u521b\u5efa\u8fdb\u7a0b\u7684\u6210\u672c\u662f\u5f88\u9ad8\u7684\uff0c\u521b\u5efa\u8fdb\u7a0b\u65f6\u9700\u8981\u521b\u5efa\u8be5\u8fdb\u7a0b\u5bf9\u5e94\u7684\u8fdb\u7a0b\u63a7\u5236\u5757\uff08task_struct\uff09\u3001\u8fdb\u7a0b\u5730\u5740\u7a7a\u95f4\uff08mm_struct\uff09\u3001\u9875\u8868\u7b49\u6570\u636e\u7ed3\u6784\u3002\u800c\u521b\u5efa\u7ebf\u7a0b\u7684\u6210\u672c\u6bd4\u521b\u5efa\u8fdb\u7a0b\u7684\u6210\u672c\u4f1a\u5c0f\u5f97\u591a\uff0c\u56e0\u4e3a\u7ebf\u7a0b\u672c\u8d28\u662f\u5728\u8fdb\u7a0b\u5730\u5740\u7a7a\u95f4\u5185\u8fd0\u884c\uff0c\u521b\u5efa\u51fa\u6765\u7684\u7ebf\u7a0b\u4f1a\u5171\u4eab\u8be5\u8fdb\u7a0b\u7684\u5927\u90e8\u5206\u8d44\u6e90\uff0c\u56e0\u6b64\u5728\u5b9e\u73b0\u591a\u6267\u884c\u6d41\u7684\u670d\u52a1\u5668\u65f6\u6700\u597d\u91c7\u7528\u591a\u7ebf\u7a0b\u8fdb\u884c\u5b9e\u73b0\u3002<\/p>\n<\/blockquote>\n\n\n\n<p>\u5f53\u670d\u52a1\u8fdb\u7a0b\u8c03\u7528accept\u51fd\u6570\u83b7\u53d6\u5230\u4e00\u4e2a\u65b0\u8fde\u63a5\u540e\uff0c\u5c31\u53ef\u4ee5\u76f4\u63a5\u521b\u5efa\u4e00\u4e2a\u7ebf\u7a0b\uff0c\u8ba9\u8be5\u7ebf\u7a0b\u4e3a\u5bf9\u5e94\u5ba2\u6237\u7aef\u63d0\u4f9b\u670d\u52a1\u3002<\/p>\n\n\n\n<p>\u5f53\u7136\uff0c\u4e3b\u7ebf\u7a0b\uff08\u670d\u52a1\u8fdb\u7a0b\uff09\u521b\u5efa\u51fa\u65b0\u7ebf\u7a0b\u540e\uff0c\u4e5f\u662f\u9700\u8981\u7b49\u5f85\u65b0\u7ebf\u7a0b\u9000\u51fa\u7684\uff0c\u5426\u5219\u4e5f\u4f1a\u9020\u6210\u7c7b\u4f3c\u4e8e\u50f5\u5c38\u8fdb\u7a0b\u8fd9\u6837\u7684\u95ee\u9898\u3002\u4f46\u5bf9\u4e8e\u7ebf\u7a0b\u6765\u8bf4\uff0c\u5982\u679c\u4e0d\u60f3\u8ba9\u4e3b\u7ebf\u7a0b\u7b49\u5f85\u65b0\u7ebf\u7a0b\u9000\u51fa\uff0c\u53ef\u4ee5\u8ba9\u521b\u5efa\u51fa\u6765\u7684\u65b0\u7ebf\u7a0b\u8c03\u7528pthread_detach\u51fd\u6570\u8fdb\u884c\u7ebf\u7a0b\u5206\u79bb\uff0c\u5f53\u8fd9\u4e2a\u7ebf\u7a0b\u9000\u51fa\u65f6\u7cfb\u7edf\u4f1a\u81ea\u52a8\u56de\u6536\u8be5\u7ebf\u7a0b\u6240\u5bf9\u5e94\u7684\u8d44\u6e90\u3002\u6b64\u65f6\u4e3b\u7ebf\u7a0b\uff08\u670d\u52a1\u8fdb\u7a0b\uff09\u5c31\u53ef\u4ee5\u7ee7\u7eed\u8c03\u7528accept\u51fd\u6570\u83b7\u53d6\u65b0\u8fde\u63a5\uff0c\u800c\u8ba9\u65b0\u7ebf\u7a0b\u53bb\u670d\u52a1\u5bf9\u5e94\u7684\u5ba2\u6237\u7aef\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u5404\u4e2a\u7ebf\u7a0b\u5171\u4eab\u540c\u4e00\u5f20\u6587\u4ef6\u63cf\u8ff0\u7b26\u8868<\/p>\n<\/blockquote>\n\n\n\n<p>\u6587\u4ef6\u63cf\u8ff0\u7b26\u8868\u7ef4\u62a4\u7684\u662f\u8fdb\u7a0b\u4e0e\u6587\u4ef6\u4e4b\u95f4\u7684\u5bf9\u5e94\u5173\u7cfb\uff0c\u56e0\u6b64\u4e00\u4e2a\u8fdb\u7a0b\u5bf9\u5e94\u4e00\u5f20\u6587\u4ef6\u63cf\u8ff0\u7b26\u8868\u3002\u800c\u4e3b\u7ebf\u7a0b\u521b\u5efa\u51fa\u6765\u7684\u65b0\u7ebf\u7a0b\u4f9d\u65e7\u5c5e\u4e8e\u8fd9\u4e2a\u8fdb\u7a0b\uff0c\u56e0\u6b64\u521b\u5efa\u7ebf\u7a0b\u65f6\u5e76\u4e0d\u4f1a\u4e3a\u8be5\u7ebf\u7a0b\u521b\u5efa\u72ec\u7acb\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u8868\uff0c\u6240\u6709\u7684\u7ebf\u7a0b\u770b\u5230\u7684\u90fd\u662f\u540c\u4e00\u5f20\u6587\u4ef6\u63cf\u8ff0\u7b26\u8868\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/cdn.codergodv.xyz\/073476ae1b40469884bf843d361950c2.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/cdn.codergodv.xyz\/073476ae1b40469884bf843d361950c2.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"img\"\/><\/div><\/figure>\n\n\n\n<p>\u56e0\u6b64\u5f53\u670d\u52a1\u8fdb\u7a0b\uff08\u4e3b\u7ebf\u7a0b\uff09\u8c03\u7528accept\u51fd\u6570\u83b7\u53d6\u5230\u4e00\u4e2a\u6587\u4ef6\u63cf\u8ff0\u7b26\u540e\uff0c\u5176\u4ed6\u521b\u5efa\u7684\u65b0\u7ebf\u7a0b\u662f\u80fd\u591f\u76f4\u63a5\u8bbf\u95ee\u8fd9\u4e2a\u6587\u4ef6\u63cf\u8ff0\u7b26\u7684\u3002<\/p>\n\n\n\n<p>\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u867d\u7136\u65b0\u7ebf\u7a0b\u80fd\u591f\u76f4\u63a5\u8bbf\u95ee\u4e3b\u7ebf\u7a0baccept\u4e0a\u6765\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\uff0c\u4f46\u6b64\u65f6\u65b0\u7ebf\u7a0b\u5e76\u4e0d\u77e5\u9053\u5b83\u6240\u670d\u52a1\u7684\u5ba2\u6237\u7aef\u5bf9\u5e94\u7684\u662f\u54ea\u4e00\u4e2a\u6587\u4ef6\u63cf\u8ff0\u7b26\uff0c\u56e0\u6b64\u4e3b\u7ebf\u7a0b\u521b\u5efa\u65b0\u7ebf\u7a0b\u540e\u9700\u8981\u544a\u8bc9\u65b0\u7ebf\u7a0b\u5bf9\u5e94\u5e94\u8be5\u8bbf\u95ee\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u7684\u503c\uff0c\u4e5f\u5c31\u662f\u544a\u8bc9\u6bcf\u4e2a\u65b0\u7ebf\u7a0b\u5728\u670d\u52a1\u5ba2\u6237\u7aef\u65f6\uff0c\u5e94\u8be5\u5bf9\u54ea\u4e00\u4e2a\u5957\u63a5\u5b57\u8fdb\u884c\u64cd\u4f5c\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u53c2\u6570\u7ed3\u6784\u4f53<\/p>\n<\/blockquote>\n\n\n\n<p>\u5b9e\u9645\u65b0\u7ebf\u7a0b\u5728\u4e3a\u5ba2\u6237\u7aef\u63d0\u4f9b\u670d\u52a1\u65f6\u5c31\u662f\u8c03\u7528Service\u51fd\u6570\uff0c\u800c\u8c03\u7528Service\u51fd\u6570\u65f6\u662f\u9700\u8981\u4f20\u5165\u4e09\u4e2a\u53c2\u6570\u7684\uff0c\u5206\u522b\u662f\u5ba2\u6237\u7aef\u5bf9\u5e94\u7684\u5957\u63a5\u5b57\u3001IP\u5730\u5740\u548c\u7aef\u53e3\u53f7\u3002\u56e0\u6b64\u4e3b\u7ebf\u7a0b\u521b\u5efa\u65b0\u7ebf\u7a0b\u65f6\u9700\u8981\u7ed9\u65b0\u7ebf\u7a0b\u4f20\u5165\u4e09\u4e2a\u53c2\u6570\uff0c\u800c\u5b9e\u9645\u5728\u8c03\u7528pthread_create\u51fd\u6570\u521b\u5efa\u65b0\u7ebf\u7a0b\u65f6\uff0c\u53ea\u80fd\u4f20\u5165\u4e00\u4e2a\u7c7b\u578b\u4e3a<code>void*<\/code>\u7684\u53c2\u6570\u3002<\/p>\n\n\n\n<p>\u8fd9\u65f6\u6211\u4eec\u53ef\u4ee5\u8bbe\u8ba1\u4e00\u4e2a\u53c2\u6570\u7ed3\u6784\u4f53Param\uff0c\u6b64\u65f6\u8fd9\u4e09\u4e2a\u53c2\u6570\u5c31\u53ef\u4ee5\u653e\u5230Param\u7ed3\u6784\u4f53\u5f53\u4e2d\uff0c\u5f53\u4e3b\u7ebf\u7a0b\u521b\u5efa\u65b0\u7ebf\u7a0b\u65f6\u5c31\u53ef\u4ee5\u5b9a\u4e49\u4e00\u4e2aParam\u5bf9\u8c61\uff0c\u5c06\u5ba2\u6237\u7aef\u5bf9\u5e94\u7684\u5957\u63a5\u5b57\u3001IP\u5730\u5740\u548c\u7aef\u53e3\u53f7\u8bbe\u8ba1\u8fdb\u8fd9\u4e2aParam\u5bf9\u8c61\u5f53\u4e2d\uff0c\u7136\u540e\u5c06Param\u5bf9\u8c61\u7684\u5730\u5740\u4f5c\u4e3a\u65b0\u7ebf\u7a0b\u6267\u884c\u4f8b\u7a0b\u7684\u53c2\u6570\u8fdb\u884c\u4f20\u5165\u3002<\/p>\n\n\n\n<p>\u6b64\u65f6\u65b0\u7ebf\u7a0b\u5728\u6267\u884c\u4f8b\u7a0b\u5f53\u4e2d\u518d\u5c06\u8fd9\u4e2a<code>void*<\/code>\u7c7b\u578b\u7684\u53c2\u6570\u5f3a\u8f6c\u4e3a<code>Param*<\/code>\u7c7b\u578b\uff0c\u7136\u540e\u5c31\u80fd\u591f\u62ff\u5230\u5ba2\u6237\u7aef\u5bf9\u5e94\u7684\u5957\u63a5\u5b57\uff0cIP\u5730\u5740\u548c\u7aef\u53e3\u53f7\uff0c\u8fdb\u800c\u8c03\u7528Service\u51fd\u6570\u4e3a\u5bf9\u5e94\u5ba2\u6237\u7aef\u63d0\u4f9b\u670d\u52a1\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>class Param\n{\npublic:\n    Param(int sock, std::string ip, int port)\n        : _sock(sock)\n        , _ip(ip)\n        , _port(port)\n    {}\n    ~Param()\n    {}\npublic:\n    int _sock;\n    std::string _ip;\n    int _port;\n};<\/code><\/pre>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u6587\u4ef6\u63cf\u8ff0\u7b26\u5173\u95ed\u7684\u95ee\u9898<\/p>\n<\/blockquote>\n\n\n\n<p>\u7531\u4e8e\u6b64\u65f6\u6240\u6709\u7ebf\u7a0b\u770b\u5230\u7684\u90fd\u662f\u540c\u4e00\u5f20\u6587\u4ef6\u63cf\u8ff0\u7b26\u8868\uff0c\u56e0\u6b64\u5f53\u67d0\u4e2a\u7ebf\u7a0b\u8981\u5bf9\u8fd9\u5f20\u6587\u4ef6\u63cf\u8ff0\u7b26\u8868\u505a\u67d0\u79cd\u64cd\u4f5c\u65f6\uff0c\u4e0d\u4ec5\u8981\u8003\u8651\u5f53\u524d\u7ebf\u7a0b\uff0c\u8fd8\u8981\u8003\u8651\u5176\u4ed6\u7ebf\u7a0b\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5bf9\u4e8e\u4e3b\u7ebf\u7a0baccept\u4e0a\u6765\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\uff0c\u4e3b\u7ebf\u7a0b\u4e0d\u80fd\u5bf9\u5176\u8fdb\u884c\u5173\u95ed\u64cd\u4f5c\uff0c\u8be5\u6587\u4ef6\u63cf\u8ff0\u7b26\u7684\u5173\u95ed\u64cd\u4f5c\u5e94\u8be5\u7531\u65b0\u7ebf\u7a0b\u6765\u6267\u884c\u3002\u56e0\u4e3a\u662f\u65b0\u7ebf\u7a0b\u4e3a\u5ba2\u6237\u7aef\u63d0\u4f9b\u670d\u52a1\u7684\uff0c\u53ea\u6709\u5f53\u65b0\u7ebf\u7a0b\u4e3a\u5ba2\u6237\u7aef\u63d0\u4f9b\u7684\u670d\u52a1\u7ed3\u675f\u540e\u624d\u80fd\u5c06\u8be5\u6587\u4ef6\u63cf\u8ff0\u7b26\u5173\u95ed\u3002<\/li>\n\n\n\n<li>\u5bf9\u4e8e\u76d1\u542c\u5957\u63a5\u5b57\uff0c\u867d\u7136\u521b\u5efa\u51fa\u6765\u7684\u65b0\u7ebf\u7a0b\u4e0d\u5fc5\u5173\u5fc3\u76d1\u542c\u5957\u63a5\u5b57\uff0c\u4f46\u65b0\u7ebf\u7a0b\u4e0d\u80fd\u5c06\u76d1\u542c\u5957\u63a5\u5b57\u5bf9\u5e94\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u5173\u95ed\uff0c\u5426\u5219\u4e3b\u7ebf\u7a0b\u5c31\u65e0\u6cd5\u4ece\u76d1\u542c\u5957\u63a5\u5b57\u5f53\u4e2d\u83b7\u53d6\u65b0\u8fde\u63a5\u4e86\u3002<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>Service\u51fd\u6570\u5b9a\u4e49\u4e3a\u9759\u6001\u6210\u5458\u51fd\u6570<\/p>\n<\/blockquote>\n\n\n\n<p>\u7531\u4e8e\u8c03\u7528pthread_create\u51fd\u6570\u521b\u5efa\u7ebf\u7a0b\u65f6\uff0c\u65b0\u7ebf\u7a0b\u7684\u6267\u884c\u4f8b\u7a0b\u662f\u4e00\u4e2a\u53c2\u6570\u4e3a<code>void*<\/code>\uff0c\u8fd4\u56de\u503c\u4e3a<code>void*<\/code>\u7684\u51fd\u6570\u3002\u5982\u679c\u6211\u4eec\u8981\u5c06\u8fd9\u4e2a\u6267\u884c\u4f8b\u7a0b\u5b9a\u4e49\u5230\u7c7b\u5185\uff0c\u5c31\u9700\u8981\u5c06\u5176\u5b9a\u4e49\u4e3a\u9759\u6001\u6210\u5458\u51fd\u6570\uff0c\u5426\u5219\u8fd9\u4e2a\u6267\u884c\u4f8b\u7a0b\u7684\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u9690\u85cf\u7684this\u6307\u9488\u3002<\/p>\n\n\n\n<p>\u5728\u7ebf\u7a0b\u7684\u6267\u884c\u4f8b\u7a0b\u5f53\u4e2d\u4f1a\u8c03\u7528Service\u51fd\u6570\uff0c\u7531\u4e8e\u6267\u884c\u4f8b\u7a0b\u662f\u9759\u6001\u6210\u5458\u51fd\u6570\uff0c\u9759\u6001\u6210\u5458\u51fd\u6570\u65e0\u6cd5\u8c03\u7528\u975e\u9759\u6001\u6210\u5458\u51fd\u6570\uff0c\u56e0\u6b64\u6211\u4eec\u9700\u8981\u5c06Service\u51fd\u6570\u5b9a\u4e49\u4e3a\u9759\u6001\u6210\u5458\u51fd\u6570\u3002\u6070\u597dService\u51fd\u6570\u5185\u90e8\u7684\u64cd\u4f5c\u90fd\u662f\u4e0e\u7c7b\u65e0\u5173\u7684\uff0c\u56e0\u6b64\u6211\u4eec\u53ef\u4ee5\u76f4\u63a5\u5728Service\u51fd\u6570\u524d\u9762\u52a0\u4e0a\u4e00\u4e2a<code>static<\/code>\u5373\u53ef\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>class TcpServer\n{\npublic:\n    static void* HandlerRequest(void* arg)\n    {\n        pthread_detach(pthread_self()); \/\/\u5206\u79bb\u7ebf\u7a0b\n        \/\/int sock = *(int*)arg;\n        Param* p = (Param*)arg;\n\n        Service(p-&gt;_sock, p-&gt;_ip, p-&gt;_port); \/\/\u7ebf\u7a0b\u4e3a\u5ba2\u6237\u7aef\u63d0\u4f9b\u670d\u52a1\n\n        delete p; \/\/\u91ca\u653e\u53c2\u6570\u5360\u7528\u7684\u5806\u7a7a\u95f4\n        return nullptr;\n    }\n    void Start()\n    {\n        for (;;){\n            \/\/\u83b7\u53d6\u8fde\u63a5\n            struct sockaddr_in peer;\n            memset(&amp;peer, '\\0', sizeof(peer));\n            socklen_t len = sizeof(peer);\n            int sock = accept(_listen_sock, (struct sockaddr*)&amp;peer, &amp;len);\n            if (sock &lt; 0){\n                std::cerr &lt;&lt; \"accept error, continue next\" &lt;&lt; std::endl;\n                continue;\n            }\n            std::string client_ip = inet_ntoa(peer.sin_addr);\n            int client_port = ntohs(peer.sin_port);\n            std::cout &lt;&lt; \"get a new link-&gt;\" &lt;&lt; sock &lt;&lt; \" &#91;\" &lt;&lt; client_ip &lt;&lt; \"]:\" &lt;&lt; client_port &lt;&lt; std::endl;\n\n            Param* p = new Param(sock, client_ip, client_port);\n            pthread_t tid;\n            pthread_create(&amp;tid, nullptr, HandlerRequest, p);\n        }\n    }\nprivate:\n    int _listen_sock; \/\/\u76d1\u542c\u5957\u63a5\u5b57\n    int _port; \/\/\u7aef\u53e3\u53f7\n};<\/code><\/pre>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u4ee3\u7801\u6d4b\u8bd5<\/p>\n<\/blockquote>\n\n\n\n<p>\u6b64\u65f6\u6211\u4eec\u518d\u91cd\u65b0\u7f16\u8bd1\u670d\u52a1\u7aef\u4ee3\u7801\uff0c\u7531\u4e8e\u4ee3\u7801\u5f53\u4e2d\u7528\u5230\u4e86\u591a\u7ebf\u7a0b\uff0c\u56e0\u6b64\u7f16\u8bd1\u65f6\u9700\u8981\u643a\u5e26\u4e0a<code>-pthread<\/code>\u9009\u9879\u3002\u6b64\u5916\uff0c\u7531\u4e8e\u6211\u4eec\u73b0\u5728\u8981\u76d1\u6d4b\u7684\u662f\u4e00\u4e2a\u4e2a\u7684\u7ebf\u7a0b\uff0c\u56e0\u6b64\u5728\u76d1\u63a7\u65f6\u4f7f\u7528\u7684\u4e0d\u518d\u662f<code>ps -axj<\/code>\u547d\u4ee4\uff0c\u800c\u662f<code>ps -aL<\/code>\u547d\u4ee4\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>while :; do ps -aL|head -1&amp;&amp;ps -aL|grep tcp_server;echo \"####################\";sleep 1;done<\/code><\/pre>\n\n\n\n<p>\u8fd0\u884c\u670d\u52a1\u7aef\uff0c\u901a\u8fc7\u76d1\u63a7\u53ef\u4ee5\u770b\u5230\uff0c\u6b64\u65f6\u53ea\u6709\u4e00\u4e2a\u670d\u52a1\u7ebf\u7a0b\uff0c\u8be5\u670d\u52a1\u7ebf\u7a0b\u5c31\u662f\u4e3b\u7ebf\u7a0b\uff0c\u4ed6\u73b0\u5728\u5728\u7b49\u5f85\u5ba2\u6237\u7aef\u7684\u8fde\u63a5\u5230\u6765\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/cdn.codergodv.xyz\/e8f5e65eaefc46678c8d7a5a55312e9d.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/cdn.codergodv.xyz\/e8f5e65eaefc46678c8d7a5a55312e9d.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"img\"\/><\/div><\/figure>\n\n\n\n<p>\u5f53\u4e00\u4e2a\u5ba2\u6237\u7aef\u8fde\u63a5\u5230\u670d\u52a1\u7aef\u540e\uff0c\u6b64\u65f6\u4e3b\u7ebf\u7a0b\u5c31\u4f1a\u4e3a\u8be5\u5ba2\u6237\u7aef\u6784\u5efa\u4e00\u4e2a\u53c2\u6570\u7ed3\u6784\u4f53\uff0c\u7136\u540e\u521b\u5efa\u4e00\u4e2a\u65b0\u7ebf\u7a0b\uff0c\u5c06\u8be5\u53c2\u6570\u7ed3\u6784\u4f53\u7684\u5730\u5740\u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\u7ed9\u8fd9\u4e2a\u65b0\u7ebf\u7a0b\uff0c\u6b64\u65f6\u8be5\u65b0\u7ebf\u7a0b\u5c31\u80fd\u591f\u4ece\u8fd9\u4e2a\u53c2\u6570\u7ed3\u6784\u4f53\u5f53\u4e2d\u63d0\u53d6\u51fa\u5bf9\u5e94\u7684\u53c2\u6570\uff0c\u7136\u540e\u8c03\u7528Service\u51fd\u6570\u4e3a\u8be5\u5ba2\u6237\u7aef\u63d0\u4f9b\u670d\u52a1\uff0c\u56e0\u6b64\u5728\u76d1\u63a7\u5f53\u4e2d\u663e\u793a\u4e86\u4e24\u4e2a\u7ebf\u7a0b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/cdn.codergodv.xyz\/a48ecddfec984291b31def195ed3aa82.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/cdn.codergodv.xyz\/a48ecddfec984291b31def195ed3aa82.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"img\"\/><\/div><\/figure>\n\n\n\n<p>\u5f53\u7b2c\u4e8c\u4e2a\u5ba2\u6237\u7aef\u53d1\u6765\u8fde\u63a5\u8bf7\u6c42\u65f6\uff0c\u4e3b\u7ebf\u7a0b\u4f1a\u8fdb\u884c\u76f8\u540c\u7684\u64cd\u4f5c\uff0c\u6700\u7ec8\u518d\u521b\u5efa\u51fa\u4e00\u4e2a\u65b0\u7ebf\u7a0b\u4e3a\u8be5\u5ba2\u6237\u7aef\u63d0\u4f9b\u670d\u52a1\uff0c\u6b64\u65f6\u670d\u52a1\u7aef\u5f53\u4e2d\u5c31\u6709\u4e86\u4e09\u4e2a\u7ebf\u7a0b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/cdn.codergodv.xyz\/8f35f1763af3426fa0e3fc3d3c23196a.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/cdn.codergodv.xyz\/8f35f1763af3426fa0e3fc3d3c23196a.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"img\"\/><\/div><\/figure>\n\n\n\n<p>\u7531\u4e8e\u4e3a\u8fd9\u4e24\u4e2a\u5ba2\u6237\u7aef\u63d0\u4f9b\u670d\u52a1\u7684\u4e5f\u662f\u4e24\u4e2a\u4e0d\u540c\u7684\u6267\u884c\u6d41\uff0c\u56e0\u6b64\u8fd9\u4e24\u4e2a\u5ba2\u6237\u7aef\u53ef\u4ee5\u540c\u65f6\u4eab\u53d7\u670d\u52a1\u7aef\u63d0\u4f9b\u7684\u670d\u52a1\uff0c\u5b83\u4eec\u53d1\u9001\u7ed9\u670d\u52a1\u7aef\u7684\u6d88\u606f\u4e5f\u90fd\u80fd\u591f\u5728\u670d\u52a1\u7aef\u8fdb\u884c\u6253\u5370\uff0c\u5e76\u4e14\u8fd9\u4e24\u4e2a\u5ba2\u6237\u7aef\u4e5f\u90fd\u80fd\u591f\u6536\u5230\u670d\u52a1\u7aef\u7684\u56de\u663e\u6570\u636e\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/cdn.codergodv.xyz\/89cbabafaaca4614bc03058d916d8315.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/cdn.codergodv.xyz\/89cbabafaaca4614bc03058d916d8315.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"img\"\/><\/div><\/figure>\n\n\n\n<p>\u6b64\u65f6\u65e0\u8bba\u6709\u591a\u5c11\u4e2a\u5ba2\u6237\u7aef\u53d1\u6765\u8fde\u63a5\u8bf7\u6c42\uff0c\u5728\u670d\u52a1\u7aef\u90fd\u4f1a\u521b\u5efa\u51fa\u76f8\u5e94\u6570\u91cf\u7684\u65b0\u7ebf\u7a0b\u4e3a\u5bf9\u5e94\u5ba2\u6237\u7aef\u63d0\u4f9b\u670d\u52a1\uff0c\u800c\u5f53\u5ba2\u6237\u7aef\u4e00\u4e2a\u4e2a\u9000\u51fa\u540e\uff0c\u4e3a\u5176\u63d0\u4f9b\u670d\u52a1\u7684\u65b0\u7ebf\u7a0b\u4e5f\u5c31\u4f1a\u76f8\u7ee7\u9000\u51fa\uff0c\u6700\u7ec8\u5c31\u53ea\u5269\u4e0b\u6700\u521d\u7684\u4e3b\u7ebf\u7a0b\u4ecd\u5728\u7b49\u5f85\u65b0\u8fde\u63a5\u7684\u5230\u6765\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/cdn.codergodv.xyz\/0b337c3c1c3442a8af32907fbe8b1e69.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/cdn.codergodv.xyz\/0b337c3c1c3442a8af32907fbe8b1e69.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"img\"\/><\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u7ebf\u7a0b\u6c60\u7248\u7684TCP\u7f51\u7edc\u7a0b\u5e8f<\/h2>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u5355\u7eaf\u591a\u7ebf\u7a0b\u5b58\u5728\u7684\u95ee\u9898<\/p>\n<\/blockquote>\n\n\n\n<p>\u5f53\u524d\u591a\u7ebf\u7a0b\u7248\u7684\u670d\u52a1\u5668\u5b58\u5728\u7684\u95ee\u9898\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6bcf\u5f53\u6709\u65b0\u8fde\u63a5\u5230\u6765\u65f6\uff0c\u670d\u52a1\u7aef\u7684\u4e3b\u7ebf\u7a0b\u90fd\u4f1a\u91cd\u65b0\u4e3a\u8be5\u5ba2\u6237\u7aef\u521b\u5efa\u4e3a\u5176\u63d0\u4f9b\u670d\u52a1\u7684\u65b0\u7ebf\u7a0b\uff0c\u800c\u5f53\u670d\u52a1\u7ed3\u675f\u540e\u53c8\u4f1a\u5c06\u8be5\u65b0\u7ebf\u7a0b\u9500\u6bc1\u3002\u8fd9\u6837\u505a\u4e0d\u4ec5\u9ebb\u70e6\uff0c\u800c\u4e14\u6548\u7387\u4f4e\u4e0b\uff0c\u6bcf\u5f53\u8fde\u63a5\u5230\u6765\u7684\u65f6\u5019\u670d\u52a1\u7aef\u624d\u521b\u5efa\u5bf9\u5e94\u63d0\u4f9b\u670d\u52a1\u7684\u7ebf\u7a0b\u3002<\/li>\n\n\n\n<li>\u5982\u679c\u6709\u5927\u91cf\u7684\u5ba2\u6237\u7aef\u8fde\u63a5\u8bf7\u6c42\uff0c\u6b64\u65f6\u670d\u52a1\u7aef\u8981\u4e3a\u6bcf\u4e00\u4e2a\u5ba2\u6237\u7aef\u521b\u5efa\u5bf9\u5e94\u7684\u670d\u52a1\u7ebf\u7a0b\u3002\u8ba1\u7b97\u673a\u5f53\u4e2d\u7684\u7ebf\u7a0b\u8d8a\u591a\uff0cCPU\u7684\u538b\u529b\u5c31\u8d8a\u5927\uff0c\u56e0\u4e3aCPU\u8981\u4e0d\u65ad\u5728\u8fd9\u4e9b\u7ebf\u7a0b\u4e4b\u95f4\u6765\u56de\u5207\u6362\uff0c\u6b64\u65f6CPU\u5728\u8c03\u5ea6\u7ebf\u7a0b\u7684\u65f6\u5019\uff0c\u7ebf\u7a0b\u548c\u7ebf\u7a0b\u4e4b\u95f4\u5207\u6362\u7684\u6210\u672c\u5c31\u4f1a\u53d8\u5f97\u5f88\u9ad8\u3002\u6b64\u5916\uff0c\u4e00\u65e6\u7ebf\u7a0b\u592a\u591a\uff0c\u6bcf\u4e00\u4e2a\u7ebf\u7a0b\u518d\u6b21\u88ab\u8c03\u5ea6\u7684\u5468\u671f\u5c31\u53d8\u957f\uff0c\u800c\u7ebf\u7a0b\u662f\u4e3a\u5ba2\u6237\u7aef\u63d0\u4f9b\u670d\u52a1\u7684\uff0c\u7ebf\u7a0b\u88ab\u8c03\u5ea6\u7684\u5468\u671f\u53d8\u957f\uff0c\u5ba2\u6237\u7aef\u4e5f\u8fdf\u8fdf\u5f97\u4e0d\u5230\u5e94\u7b54\u3002<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u89e3\u51b3\u601d\u8def<\/p>\n<\/blockquote>\n\n\n\n<p>\u9488\u5bf9\u8fd9\u4e24\u4e2a\u95ee\u9898\uff0c\u5bf9\u5e94\u7684\u89e3\u51b3\u601d\u8def\u5982\u4e0b\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u53ef\u4ee5\u5728\u670d\u52a1\u7aef\u9884\u5148\u521b\u5efa\u4e00\u6279\u7ebf\u7a0b\uff0c\u5f53\u6709\u5ba2\u6237\u7aef\u8bf7\u6c42\u8fde\u63a5\u65f6\u5c31\u8ba9\u8fd9\u4e9b\u7ebf\u7a0b\u4e3a\u5ba2\u6237\u7aef\u63d0\u4f9b\u670d\u52a1\uff0c\u6b64\u65f6\u5ba2\u6237\u7aef\u4e00\u6765\u5c31\u6709\u7ebf\u7a0b\u4e3a\u5176\u63d0\u4f9b\u670d\u52a1\uff0c\u800c\u4e0d\u662f\u5f53\u5ba2\u6237\u7aef\u6765\u4e86\u624d\u521b\u5efa\u5bf9\u5e94\u7684\u670d\u52a1\u7ebf\u7a0b\u3002<\/li>\n\n\n\n<li>\u5f53\u67d0\u4e2a\u7ebf\u7a0b\u4e3a\u5ba2\u6237\u7aef\u63d0\u4f9b\u5b8c\u670d\u52a1\u540e\uff0c\u4e0d\u8981\u8ba9\u8be5\u7ebf\u7a0b\u9000\u51fa\uff0c\u800c\u662f\u8ba9\u8be5\u7ebf\u7a0b\u7ee7\u7eed\u4e3a\u4e0b\u4e00\u4e2a\u5ba2\u6237\u7aef\u63d0\u4f9b\u670d\u52a1\uff0c\u5982\u679c\u5f53\u524d\u6ca1\u6709\u5ba2\u6237\u7aef\u8fde\u63a5\u8bf7\u6c42\uff0c\u5219\u53ef\u4ee5\u8ba9\u8be5\u7ebf\u7a0b\u5148\u8fdb\u5165\u4f11\u7720\u72b6\u6001\uff0c\u5f53\u6709\u5ba2\u6237\u7aef\u8fde\u63a5\u5230\u6765\u65f6\u518d\u5c06\u8be5\u7ebf\u7a0b\u5524\u9192\u3002<\/li>\n\n\n\n<li>\u670d\u52a1\u7aef\u521b\u5efa\u7684\u8fd9\u4e00\u6279\u7ebf\u7a0b\u7684\u6570\u91cf\u4e0d\u80fd\u592a\u591a\uff0c\u6b64\u65f6CPU\u7684\u538b\u529b\u4e5f\u5c31\u4e0d\u4f1a\u592a\u5927\u3002\u6b64\u5916\uff0c\u5982\u679c\u6709\u5ba2\u6237\u7aef\u8fde\u63a5\u5230\u6765\uff0c\u4f46\u6b64\u65f6\u8fd9\u4e00\u6279\u7ebf\u7a0b\u90fd\u5728\u7ed9\u5176\u4ed6\u5ba2\u6237\u7aef\u63d0\u4f9b\u670d\u52a1\uff0c\u8fd9\u65f6\u670d\u52a1\u7aef\u4e0d\u5e94\u8be5\u518d\u521b\u5efa\u7ebf\u7a0b\uff0c\u800c\u5e94\u8be5\u8ba9\u8fd9\u4e2a\u65b0\u6765\u7684\u8fde\u63a5\u8bf7\u6c42\u5728\u5168\u8fde\u63a5\u961f\u5217\u8fdb\u884c\u6392\u961f\uff0c\u7b49\u670d\u52a1\u7aef\u8fd9\u4e00\u6279\u7ebf\u7a0b\u4e2d\u6709\u7a7a\u95f2\u7ebf\u7a0b\u540e\uff0c\u518d\u5c06\u8be5\u8fde\u63a5\u8bf7\u6c42\u83b7\u53d6\u4e0a\u6765\u5e76\u4e3a\u5176\u63d0\u4f9b\u670d\u52a1\u3002<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u5f15\u5165\u7ebf\u7a0b\u6c60<\/p>\n<\/blockquote>\n\n\n\n<p>\u5b9e\u9645\u8981\u89e3\u51b3\u8fd9\u91cc\u7684\u95ee\u9898\u6211\u4eec\u5c31\u9700\u8981\u5728\u670d\u52a1\u7aef\u5f15\u5165\u7ebf\u7a0b\u6c60\uff0c\u56e0\u4e3a\u7ebf\u7a0b\u6c60\u7684\u5b58\u5728\u5c31\u662f\u4e3a\u4e86\u907f\u514d\u5904\u7406\u77ed\u65f6\u95f4\u4efb\u52a1\u65f6\u521b\u5efa\u4e0e\u9500\u6bc1\u7ebf\u7a0b\u7684\u4ee3\u4ef7\uff0c\u6b64\u5916\uff0c\u7ebf\u7a0b\u6c60\u8fd8\u80fd\u591f\u4fdd\u8bc1\u5185\u6838\u5145\u5206\u5229\u7528\uff0c\u9632\u6b62\u8fc7\u5206\u8c03\u5ea6\u3002<\/p>\n\n\n\n<p>\u5176\u4e2d\u5728\u7ebf\u7a0b\u6c60\u91cc\u9762\u6709\u4e00\u4e2a\u4efb\u52a1\u961f\u5217\uff0c\u5f53\u6709\u65b0\u7684\u4efb\u52a1\u5230\u6765\u7684\u65f6\u5019\uff0c\u5c31\u53ef\u4ee5\u5c06\u4efb\u52a1Push\u5230\u7ebf\u7a0b\u6c60\u5f53\u4e2d\uff0c\u5728\u7ebf\u7a0b\u6c60\u5f53\u4e2d\u6211\u4eec\u9ed8\u8ba4\u521b\u5efa\u4e865\u4e2a\u7ebf\u7a0b\uff0c\u8fd9\u4e9b\u7ebf\u7a0b\u4e0d\u65ad\u68c0\u6d4b\u4efb\u52a1\u961f\u5217\u5f53\u4e2d\u662f\u5426\u6709\u4efb\u52a1\uff0c\u5982\u679c\u6709\u4efb\u52a1\u5c31\u62ff\u51fa\u4efb\u52a1\uff0c\u7136\u540e\u8c03\u7528\u8be5\u4efb\u52a1\u5bf9\u5e94\u7684Run\u51fd\u6570\u5bf9\u8be5\u4efb\u52a1\u8fdb\u884c\u5904\u7406\uff0c\u5982\u679c\u7ebf\u7a0b\u6c60\u5f53\u4e2d\u6ca1\u6709\u4efb\u52a1\u90a3\u4e48\u5f53\u524d\u7ebf\u7a0b\u5c31\u4f1a\u8fdb\u5165\u4f11\u7720\u72b6\u6001\u3002<\/p>\n\n\n\n<p>\u5728\u535a\u4e3b\u7684\u53e6\u4e00\u7bc7\u535a\u5ba2\u5f53\u4e2d\u8be6\u7ec6\u4ecb\u7ecd\u5e76\u5b9e\u73b0\u4e86<a href=\"https:\/\/blog.csdn.net\/chenlong_cxy\/article\/details\/122657510\">\u7ebf\u7a0b\u6c60<\/a>\uff0c\u8fd9\u91cc\u5c31\u76f4\u63a5\u5c06\u7ebf\u7a0b\u6c60\u7684\u4ee3\u7801\u63a5\u5165\u5230\u5f53\u524d\u7684TCP\u670d\u52a1\u5668\uff0c\u56e0\u6b64\u4e0b\u9762\u53ea\u4f1a\u8bb2\u89e3\u7ebf\u7a0b\u6c60\u63a5\u5165\u7684\u65b9\u6cd5\uff0c\u5982\u679c\u5bf9\u7ebf\u7a0b\u6c60\u7684\u5b9e\u73b0\u6709\u7591\u95ee\u7684\u53ef\u4ee5\u53bb\u9605\u8bfb\u90a3\u7bc7\u535a\u5ba2\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>#define NUM 5\n\n\/\/\u7ebf\u7a0b\u6c60\ntemplate&lt;class T&gt;\nclass ThreadPool\n{\nprivate:\n    bool IsEmpty()\n    {\n        return _task_queue.size() == 0;\n    }\n    void LockQueue()\n    {\n        pthread_mutex_lock(&amp;_mutex);\n    }\n    void UnLockQueue()\n    {\n        pthread_mutex_unlock(&amp;_mutex);\n    }\n    void Wait()\n    {\n        pthread_cond_wait(&amp;_cond, &amp;_mutex);\n    }\n    void WakeUp()\n    {\n        pthread_cond_signal(&amp;_cond);\n    }\npublic:\n    ThreadPool(int num = NUM)\n        : _thread_num(num)\n    {\n        pthread_mutex_init(&amp;_mutex, nullptr);\n        pthread_cond_init(&amp;_cond, nullptr);\n    }\n    ~ThreadPool()\n    {\n        pthread_mutex_destroy(&amp;_mutex);\n        pthread_cond_destroy(&amp;_cond);\n    }\n    \/\/\u7ebf\u7a0b\u6c60\u4e2d\u7ebf\u7a0b\u7684\u6267\u884c\u4f8b\u7a0b\n    static void* Routine(void* arg)\n    {\n        pthread_detach(pthread_self());\n        ThreadPool* self = (ThreadPool*)arg;\n        \/\/\u4e0d\u65ad\u4ece\u4efb\u52a1\u961f\u5217\u83b7\u53d6\u4efb\u52a1\u8fdb\u884c\u5904\u7406\n        while (true){\n            self-&gt;LockQueue();\n            while (self-&gt;IsEmpty()){\n                self-&gt;Wait();\n            }\n            T task;\n            self-&gt;Pop(task);\n            self-&gt;UnLockQueue();\n\n            task.Run(); \/\/\u5904\u7406\u4efb\u52a1\n        }\n    }\n    void ThreadPoolInit()\n    {\n        pthread_t tid;\n        for (int i = 0; i &lt; _thread_num; i++){\n            pthread_create(&amp;tid, nullptr, Routine, this); \/\/\u6ce8\u610f\u53c2\u6570\u4f20\u5165this\u6307\u9488\n        }\n    }\n    \/\/\u5f80\u4efb\u52a1\u961f\u5217\u585e\u4efb\u52a1\uff08\u4e3b\u7ebf\u7a0b\u8c03\u7528\uff09\n    void Push(const T&amp; task)\n    {\n        LockQueue();\n        _task_queue.push(task);\n        UnLockQueue();\n        WakeUp();\n    }\n    \/\/\u4ece\u4efb\u52a1\u961f\u5217\u83b7\u53d6\u4efb\u52a1\uff08\u7ebf\u7a0b\u6c60\u4e2d\u7684\u7ebf\u7a0b\u8c03\u7528\uff09\n    void Pop(T&amp; task)\n    {\n        task = _task_queue.front();\n        _task_queue.pop();\n    }\n\nprivate:\n    std::queue&lt;T&gt; _task_queue; \/\/\u4efb\u52a1\u961f\u5217\n    int _thread_num; \/\/\u7ebf\u7a0b\u6c60\u4e2d\u7ebf\u7a0b\u7684\u6570\u91cf\n    pthread_mutex_t _mutex;\n    pthread_cond_t _cond;\n};<\/code><\/pre>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u670d\u52a1\u5668\u7c7b\u65b0\u589e\u7ebf\u7a0b\u6c60\u6210\u5458<\/p>\n<\/blockquote>\n\n\n\n<p>\u73b0\u5728\u670d\u52a1\u7aef\u5f15\u5165\u4e86\u7ebf\u7a0b\u6c60\uff0c\u56e0\u6b64\u5728\u670d\u52a1\u7c7b\u5f53\u4e2d\u9700\u8981\u65b0\u589e\u4e00\u4e2a\u6307\u5411\u7ebf\u7a0b\u6c60\u7684\u6307\u9488\u6210\u5458\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5f53\u5b9e\u4f8b\u5316\u670d\u52a1\u5668\u5bf9\u8c61\u65f6\uff0c\u5148\u5c06\u8fd9\u4e2a\u7ebf\u7a0b\u6c60\u6307\u9488\u5148\u521d\u59cb\u5316\u4e3a\u7a7a\u3002<\/li>\n\n\n\n<li>\u5f53\u670d\u52a1\u5668\u521d\u59cb\u5316\u5b8c\u6bd5\u540e\uff0c\u518d\u5b9e\u9645\u6784\u9020\u8fd9\u4e2a\u7ebf\u7a0b\u6c60\u5bf9\u8c61\uff0c\u5728\u6784\u9020\u7ebf\u7a0b\u6c60\u5bf9\u8c61\u65f6\u53ef\u4ee5\u6307\u5b9a\u7ebf\u7a0b\u6c60\u5f53\u4e2d\u7ebf\u7a0b\u7684\u4e2a\u6570\uff0c\u4e5f\u53ef\u4ee5\u4e0d\u6307\u5b9a\uff0c\u6b64\u65f6\u9ed8\u8ba4\u7ebf\u7a0b\u7684\u4e2a\u6570\u4e3a5\u3002<\/li>\n\n\n\n<li>\u5728\u542f\u52a8\u670d\u52a1\u5668\u4e4b\u524d\u5bf9\u7ebf\u7a0b\u6c60\u8fdb\u884c\u521d\u59cb\u5316\uff0c\u6b64\u65f6\u5c31\u4f1a\u5c06\u7ebf\u7a0b\u6c60\u5f53\u4e2d\u7684\u82e5\u5e72\u7ebf\u7a0b\u521b\u5efa\u51fa\u6765\uff0c\u800c\u8fd9\u4e9b\u7ebf\u7a0b\u521b\u5efa\u51fa\u6765\u540e\u5c31\u4f1a\u4e0d\u65ad\u68c0\u6d4b\u4efb\u52a1\u961f\u5217\uff0c\u4ece\u4efb\u52a1\u961f\u5217\u5f53\u4e2d\u62ff\u51fa\u4efb\u52a1\u8fdb\u884c\u5904\u7406\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u73b0\u5728\u5f53\u670d\u52a1\u8fdb\u7a0b\u8c03\u7528accept\u51fd\u6570\u83b7\u53d6\u5230\u4e00\u4e2a\u8fde\u63a5\u8bf7\u6c42\u540e\uff0c\u5c31\u4f1a\u6839\u636e\u8be5\u5ba2\u6237\u7aef\u7684\u5957\u63a5\u5b57\u3001IP\u5730\u5740\u4ee5\u53ca\u7aef\u53e3\u53f7\u6784\u5efa\u51fa\u4e00\u4e2a\u4efb\u52a1\uff0c\u7136\u540e\u8c03\u7528\u7ebf\u7a0b\u6c60\u63d0\u4f9b\u7684Push\u63a5\u53e3\u5c06\u8be5\u4efb\u52a1\u585e\u5165\u4efb\u52a1\u961f\u5217\u3002<\/p>\n\n\n\n<p>\u8fd9\u5b9e\u9645\u4e5f\u662f\u4e00\u4e2a\u751f\u4ea7\u8005\u6d88\u8d39\u8005\u6a21\u578b\uff0c\u5176\u4e2d\u670d\u52a1\u8fdb\u7a0b\u5c31\u4f5c\u4e3a\u4e86\u4efb\u52a1\u7684\u751f\u4ea7\u8005\uff0c\u800c\u540e\u7aef\u7ebf\u7a0b\u6c60\u5f53\u4e2d\u7684\u82e5\u5e72\u7ebf\u7a0b\u5c31\u4e0d\u65ad\u4ece\u4efb\u52a1\u961f\u5217\u5f53\u4e2d\u83b7\u53d6\u4efb\u52a1\u8fdb\u884c\u5904\u7406\uff0c\u5b83\u4eec\u627f\u62c5\u7684\u5c31\u662f\u6d88\u8d39\u8005\u7684\u89d2\u8272\uff0c\u5176\u4e2d\u751f\u4ea7\u8005\u548c\u6d88\u8d39\u8005\u7684\u4ea4\u6613\u573a\u6240\u5c31\u662f\u7ebf\u7a0b\u6c60\u5f53\u4e2d\u7684\u4efb\u52a1\u961f\u5217\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>class TcpServer\n{\npublic:\n    TcpServer(int port)\n        : _listen_sock(-1)\n        , _port(port)\n        , _tp(nullptr)\n    {}\n    void InitServer()\n    {\n        \/\/\u521b\u5efa\u5957\u63a5\u5b57\n        _listen_sock = socket(AF_INET, SOCK_STREAM, 0);\n        if (_listen_sock &lt; 0){\n            std::cerr &lt;&lt; \"socket error\" &lt;&lt; std::endl;\n            exit(2);\n        }\n        \/\/\u7ed1\u5b9a\n        struct sockaddr_in local;\n        memset(&amp;local, '\\0', sizeof(local));\n        local.sin_family = AF_INET;\n        local.sin_port = htons(_port);\n        local.sin_addr.s_addr = INADDR_ANY;\n\n        if (bind(_listen_sock, (struct sockaddr*)&amp;local, sizeof(local)) &lt; 0){\n            std::cerr &lt;&lt; \"bind error\" &lt;&lt; std::endl;\n            exit(3);\n        }\n        \/\/\u76d1\u542c\n        if (listen(_listen_sock, BACKLOG) &lt; 0){\n            std::cerr &lt;&lt; \"listen error\" &lt;&lt; std::endl;\n            exit(4);\n        }\n\n        _tp = new ThreadPool&lt;Task&gt;(); \/\/\u6784\u9020\u7ebf\u7a0b\u6c60\u5bf9\u8c61\n    }\n    void Start()\n    {\n        _tp-&gt;ThreadPoolInit(); \/\/\u521d\u59cb\u5316\u7ebf\u7a0b\u6c60\n        for (;;){\n            \/\/\u83b7\u53d6\u8fde\u63a5\n            struct sockaddr_in peer;\n            memset(&amp;peer, '\\0', sizeof(peer));\n            socklen_t len = sizeof(peer);\n            int sock = accept(_listen_sock, (struct sockaddr*)&amp;peer, &amp;len);\n            if (sock &lt; 0){\n                std::cerr &lt;&lt; \"accept error, continue next\" &lt;&lt; std::endl;\n                continue;\n            }\n            std::string client_ip = inet_ntoa(peer.sin_addr);\n            int client_port = ntohs(peer.sin_port);\n            std::cout &lt;&lt; \"get a new link-&gt;\" &lt;&lt; sock &lt;&lt; \" &#91;\" &lt;&lt; client_ip &lt;&lt; \"]:\" &lt;&lt; client_port &lt;&lt; std::endl;\n\n            Task task(sock, client_ip, client_port); \/\/\u6784\u9020\u4efb\u52a1\n            _tp-&gt;Push(task); \/\/\u5c06\u4efb\u52a1Push\u8fdb\u4efb\u52a1\u961f\u5217\n        }\n    }\nprivate:\n    int _listen_sock; \/\/\u76d1\u542c\u5957\u63a5\u5b57\n    int _port; \/\/\u7aef\u53e3\u53f7\n    ThreadPool&lt;Task&gt;* _tp; \/\/\u7ebf\u7a0b\u6c60\n}<\/code><\/pre>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u8bbe\u8ba1\u4efb\u52a1\u7c7b<\/p>\n<\/blockquote>\n\n\n\n<p>\u73b0\u5728\u6211\u4eec\u8981\u505a\u7684\u5c31\u662f\u8bbe\u8ba1\u4e00\u4e2a\u4efb\u52a1\u7c7b\uff0c\u8be5\u4efb\u52a1\u7c7b\u5f53\u4e2d\u9700\u8981\u5305\u542b\u5ba2\u6237\u7aef\u5bf9\u5e94\u7684\u5957\u63a5\u5b57\u3001IP\u5730\u5740\u3001\u7aef\u53e3\u53f7\uff0c\u8868\u793a\u8be5\u4efb\u52a1\u662f\u4e3a\u54ea\u4e00\u4e2a\u5ba2\u6237\u7aef\u63d0\u4f9b\u670d\u52a1\uff0c\u5bf9\u5e94\u64cd\u4f5c\u7684\u5957\u63a5\u5b57\u662f\u54ea\u4e00\u4e2a\u3002<\/p>\n\n\n\n<p>\u6b64\u5916\uff0c\u4efb\u52a1\u7c7b\u5f53\u4e2d\u9700\u8981\u5305\u542b\u4e00\u4e2aRun\u65b9\u6cd5\uff0c\u5f53\u7ebf\u7a0b\u6c60\u4e2d\u7684\u7ebf\u7a0b\u62ff\u5230\u4efb\u52a1\u540e\u5c31\u4f1a\u76f4\u63a5\u8c03\u7528\u8fd9\u4e2aRun\u65b9\u6cd5\u5bf9\u8be5\u4efb\u52a1\u8fdb\u884c\u5904\u7406\uff0c\u800c\u5b9e\u9645\u5904\u7406\u8fd9\u4e2a\u4efb\u52a1\u7684\u65b9\u5f0f\u5c31\u662f\u670d\u52a1\u7c7b\u5f53\u4e2d\u7684Service\u51fd\u6570\uff0c\u670d\u52a1\u7aef\u5c31\u662f\u901a\u8fc7\u8c03\u7528Service\u51fd\u6570\u4e3a\u5ba2\u6237\u7aef\u63d0\u4f9b\u670d\u52a1\u7684\u3002<\/p>\n\n\n\n<p>\u6211\u4eec\u53ef\u4ee5\u76f4\u63a5\u62ff\u51fa\u670d\u52a1\u7c7b\u5f53\u4e2d\u7684Service\u51fd\u6570\uff0c\u5c06\u5176\u653e\u5230\u4efb\u52a1\u7c7b\u5f53\u4e2d\u4f5c\u4e3a\u4efb\u52a1\u7c7b\u5f53\u4e2d\u7684Run\u65b9\u6cd5\uff0c\u4f46\u8fd9\u5b9e\u9645\u4e0d\u5229\u4e8e\u8f6f\u4ef6\u5206\u5c42\u3002\u6211\u4eec\u53ef\u4ee5\u7ed9\u4efb\u52a1\u7c7b\u65b0\u589e\u4e00\u4e2a\u4eff\u51fd\u6570\u6210\u5458\uff0c\u5f53\u6267\u884c\u4efb\u52a1\u7c7b\u5f53\u4e2d\u7684Run\u65b9\u6cd5\u5904\u7406\u4efb\u52a1\u65f6\u5c31\u53ef\u4ee5\u4ee5\u56de\u8c03\u7684\u65b9\u5f0f\u5904\u7406\u8be5\u4efb\u52a1\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>class Task\n{\npublic:\n    Task()\n    {}\n    Task(int sock, std::string client_ip, int client_port)\n        : _sock(sock)\n        , _client_ip(client_ip)\n        , _client_port(client_port)\n    {}\n    ~Task()\n    {}\n    \/\/\u4efb\u52a1\u5904\u7406\u51fd\u6570\n    void Run()\n    {\n        _handler(_sock, _client_ip, _client_port); \/\/\u8c03\u7528\u4eff\u51fd\u6570\n    }\nprivate:\n    int _sock; \/\/\u5957\u63a5\u5b57\n    std::string _client_ip; \/\/IP\u5730\u5740\n    int _client_port; \/\/\u7aef\u53e3\u53f7\n    Handler _handler; \/\/\u5904\u7406\u65b9\u6cd5\n};<\/code><\/pre>\n\n\n\n<p><strong>\u6ce8\u610f\uff1a<\/strong> \u5f53\u4efb\u52a1\u961f\u5217\u5f53\u4e2d\u6709\u4efb\u52a1\u65f6\uff0c\u7ebf\u7a0b\u6c60\u5f53\u4e2d\u7684\u7ebf\u7a0b\u4f1a\u5148\u5b9a\u4e49\u51fa\u4e00\u4e2aTask\u5bf9\u8c61\uff0c\u7136\u540e\u5c06\u8fd9\u4e2aTask\u5bf9\u8c61\u4f5c\u4e3a\u8f93\u51fa\u578b\u53c2\u6570\u8c03\u7528\u4efb\u52a1\u961f\u5217\u7684Pop\u51fd\u6570\uff0c\u4ece\u4efb\u52a1\u961f\u5217\u5f53\u4e2d\u83b7\u53d6\u4efb\u52a1\uff0c\u56e0\u6b64Task\u7c7b\u9664\u4e86\u63d0\u4f9b\u5e26\u53c2\u7684\u6784\u9020\u51fd\u6570\u4ee5\u5916\uff0c\u8fd8\u9700\u8981\u63d0\u4f9b\u4e00\u4e2a\u65e0\u53c2\u7684\u6784\u9020\u51fd\u6570\uff0c\u65b9\u4fbf\u6211\u4eec\u53ef\u4ee5\u5b9a\u4e49\u65e0\u53c2\u5bf9\u8c61\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u8bbe\u8ba1Handler\u7c7b<\/p>\n<\/blockquote>\n\n\n\n<p>\u6b64\u65f6\u9700\u8981\u518d\u8bbe\u8ba1\u4e00\u4e2aHandler\u7c7b\uff0c\u5728Handler\u7c7b\u5f53\u4e2d\u5bf9<code>()<\/code>\u64cd\u4f5c\u7b26\u8fdb\u884c\u91cd\u8f7d\uff0c\u5c06<code>()<\/code>\u64cd\u4f5c\u7b26\u7684\u6267\u884c\u52a8\u4f5c\u91cd\u8f7d\u4e3a\u6267\u884cService\u51fd\u6570\u7684\u4ee3\u7801\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>class Handler\n{\npublic:\n    Handler()\n    {}\n    ~Handler()\n    {}\n    void operator()(int sock, std::string client_ip, int client_port)\n    {\n        char buffer&#91;1024];\n        while (true){\n            ssize_t size = read(sock, buffer, sizeof(buffer)-1);\n            if (size &gt; 0){ \/\/\u8bfb\u53d6\u6210\u529f\n                buffer&#91;size] = '\\0';\n                std::cout &lt;&lt; client_ip &lt;&lt; \":\" &lt;&lt; client_port &lt;&lt; \"# \" &lt;&lt; buffer &lt;&lt; std::endl;\n\n                write(sock, buffer, size);\n            }\n            else if (size == 0){ \/\/\u5bf9\u7aef\u5173\u95ed\u8fde\u63a5\n                std::cout &lt;&lt; client_ip &lt;&lt; \":\" &lt;&lt; client_port &lt;&lt; \" close!\" &lt;&lt; std::endl;\n                break;\n            }\n            else{ \/\/\u8bfb\u53d6\u5931\u8d25\n                std::cerr &lt;&lt; sock &lt;&lt; \" read error!\" &lt;&lt; std::endl;\n                break;\n            }\n        }\n        close(sock); \/\/\u5f52\u8fd8\u6587\u4ef6\u63cf\u8ff0\u7b26\n        std::cout &lt;&lt; client_ip &lt;&lt; \":\" &lt;&lt; client_port &lt;&lt; \" service done!\" &lt;&lt; std::endl;\n    }\n};<\/code><\/pre>\n\n\n\n<p>\u5b9e\u9645\u6211\u4eec\u53ef\u4ee5\u8ba9\u670d\u52a1\u5668\u5904\u7406\u4e0d\u540c\u7684\u4efb\u52a1\uff0c\u5f53\u524d\u670d\u52a1\u5668\u53ea\u662f\u5728\u8fdb\u884c\u5b57\u7b26\u4e32\u7684\u56de\u663e\u5904\u7406\uff0c\u800c\u5b9e\u9645\u8981\u600e\u4e48\u5904\u7406\u8fd9\u4e2a\u4efb\u52a1\u5b8c\u5168\u662f\u7531\u4efb\u52a1\u7c7b\u5f53\u4e2d\u7684handler\u6210\u5458\u6765\u51b3\u5b9a\u7684\u3002<\/p>\n\n\n\n<p>\u5982\u679c\u60f3\u8981\u8ba9\u670d\u52a1\u5668\u5904\u7406\u5176\u4ed6\u4efb\u52a1\uff0c\u53ea\u9700\u8981\u4fee\u6539Handler\u7c7b\u5f53\u4e2d\u5bf9<code>()<\/code>\u7684\u91cd\u8f7d\u51fd\u6570\u5c31\u884c\u4e86\uff0c\u800c\u670d\u52a1\u5668\u7684\u521d\u59cb\u5316\u3001\u542f\u52a8\u670d\u52a1\u5668\u4ee5\u53ca\u7ebf\u7a0b\u6c60\u7684\u4ee3\u7801\u90fd\u662f\u4e0d\u9700\u8981\u66f4\u6539\u7684\uff0c\u8fd9\u5c31\u53eb\u505a\u628a\u901a\u4fe1\u529f\u80fd\u548c\u4e1a\u52a1\u903b\u8f91\u5728\u8f6f\u4ef6\u4e0a\u505a\u89e3\u8026\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u4ee3\u7801\u6d4b\u8bd5<\/p>\n<\/blockquote>\n\n\n\n<p>\u6b64\u65f6\u6211\u4eec\u518d\u91cd\u65b0\u7f16\u8bd1\u670d\u52a1\u7aef\u4ee3\u7801\uff0c\u5e76\u7528\u4ee5\u4e0b\u76d1\u63a7\u811a\u672c\u67e5\u770b\u670d\u52a1\u7aef\u7684\u5404\u4e2a\u7ebf\u7a0b\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>while :; do ps -aL|head -1&amp;&amp;ps -aL|grep tcp_server;echo \"####################\";sleep 1;done<\/code><\/pre>\n\n\n\n<p>\u8fd0\u884c\u670d\u52a1\u7aef\u540e\uff0c\u5c31\u7b97\u6ca1\u6709\u5ba2\u6237\u7aef\u53d1\u6765\u8fde\u63a5\u8bf7\u6c42\uff0c\u6b64\u65f6\u5728\u670d\u52a1\u7aef\u5c31\u5df2\u7ecf\u6709\u4e866\u4e2a\u7ebf\u7a0b\uff0c\u5176\u4e2d\u6709\u4e00\u4e2a\u662f\u63a5\u6536\u65b0\u8fde\u63a5\u7684\u670d\u52a1\u7ebf\u7a0b\uff0c\u800c\u5176\u4f59\u76845\u4e2a\u662f\u7ebf\u7a0b\u6c60\u5f53\u4e2d\u4e3a\u5ba2\u6237\u7aef\u63d0\u4f9b\u670d\u52a1\u7684\u7ebf\u7a0b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/cdn.codergodv.xyz\/a677834c3c784e8f9fb125a7467119b4.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/cdn.codergodv.xyz\/a677834c3c784e8f9fb125a7467119b4.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" 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