{"id":89945,"date":"2026-08-04T09:16:36","date_gmt":"2026-08-04T01:16:36","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/89945.html"},"modified":"2026-08-04T09:16:36","modified_gmt":"2026-08-04T01:16:36","slug":"%e4%bb%8e%e8%83%bd%e5%93%8d%e5%ba%94%e5%88%b0%e6%89%9b%e8%be%b9%e7%95%8c%ef%bc%9a%e7%94%a8-6-%e7%bb%84%e5%ae%a2%e6%88%b7%e7%ab%af%e6%b5%8b%e8%af%95%e9%aa%8c","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/89945.html","title":{"rendered":"\u4ece\u201c\u80fd\u54cd\u5e94\u201d\u5230\u201c\u625b\u8fb9\u754c\u201d\uff1a\u7528 6 \u7ec4\u5ba2\u6237\u7aef\u6d4b\u8bd5\u9a8c\u6536 C++ HTTP \u670d\u52a1\u5668"},"content":{"rendered":"<h3>\u524d\u8a00<\/h3>\n<p>\u524d\u9762\u5df2\u7ecf\u9646\u7eed\u5b8c\u6210\u4e86 Socket\u3001Buffer\u3001Channel\u3001Poller\u3001EventLoop\u3001TimerWheel\u3001Connection\u3001TcpServer\u3001HTTP \u72b6\u6001\u673a\u548c HttpServer\u3002\u5230\u8fd9\u91cc&#xff0c;\u4e00\u4e2a\u57fa\u4e8e Reactor \u6a21\u5f0f\u7684 C&#043;&#043; HTTP \u670d\u52a1\u5668\u5df2\u7ecf\u80fd\u591f\u63a5\u6536\u8fde\u63a5\u3001\u89e3\u6790\u8bf7\u6c42\u3001\u5339\u914d\u8def\u7531\u5e76\u8fd4\u56de\u54cd\u5e94\u3002<\/p>\n<p>\u4f46\u662f&#xff0c;\u670d\u52a1\u5668\u80fd\u6b63\u786e\u54cd\u5e94\u4e00\u6b21 GET \/hello&#xff0c;\u53ea\u80fd\u8bf4\u660e\u6700\u57fa\u672c\u7684\u4e3b\u6d41\u7a0b\u5df2\u7ecf\u6253\u901a\u3002\u771f\u6b63\u5bb9\u6613\u51fa\u95ee\u9898\u7684\u5730\u65b9&#xff0c;\u5f80\u5f80\u85cf\u5728\u4e0b\u9762\u8fd9\u4e9b\u573a\u666f\u4e2d&#xff1a;<\/p>\n<ul>\n<li>\u4e00\u6761\u957f\u8fde\u63a5\u6301\u7eed\u901a\u4fe1&#xff0c;\u751f\u5b58\u65f6\u95f4\u8d85\u8fc7\u7a7a\u95f2\u8d85\u65f6\u9608\u503c&#xff1b;<\/li>\n<li>\u5ba2\u6237\u7aef\u53d1\u9001\u4e00\u6b21\u8bf7\u6c42\u540e\u957f\u671f\u4e0d\u518d\u6d3b\u52a8&#xff1b;<\/li>\n<li>Content-Length \u4e0e\u5b9e\u9645\u6b63\u6587\u957f\u5ea6\u4e0d\u4e00\u81f4&#xff1b;<\/li>\n<li>\u67d0\u4e2a\u4e1a\u52a1\u56de\u8c03\u957f\u65f6\u95f4\u963b\u585e\u4e8b\u4ef6\u5faa\u73af&#xff1b;<\/li>\n<li>\u591a\u6761 HTTP \u8bf7\u6c42\u5728\u540c\u4e00\u6bb5 TCP \u5b57\u8282\u6d41\u4e2d\u8fde\u7eed\u5230\u8fbe&#xff1b;<\/li>\n<li>\u4e00\u4e2a\u8f83\u5927\u7684\u8bf7\u6c42\u4f53\u88ab\u62c6\u6210\u591a\u6b21\u7f51\u7edc\u4e8b\u4ef6\u63a5\u6536\u3002<\/li>\n<\/ul>\n<p>\u56e0\u6b64&#xff0c;\u5728\u9879\u76ee\u5b8c\u6210\u4ee5\u540e&#xff0c;\u6211\u53c8\u5199\u4e86 6 \u4e2a\u5ba2\u6237\u7aef&#xff0c;\u4ece\u8fde\u63a5\u751f\u547d\u5468\u671f\u3001HTTP \u62a5\u6587\u8fb9\u754c\u3001\u4e8b\u4ef6\u5b89\u5168\u548c\u5927\u8bf7\u6c42\u4f53\u4f20\u8f93\u51e0\u4e2a\u65b9\u5411\u8fdb\u884c\u6700\u540e\u4e00\u8f6e\u9a8c\u6536\u3002<\/p>\n<p>\u8fd9\u7bc7\u6587\u7ae0\u4e0d\u53ea\u8bb0\u5f55\u201c\u5ba2\u6237\u7aef\u53d1\u9001\u4e86\u4ec0\u4e48\u201d&#xff0c;\u8fd8\u4f1a\u5206\u6790\u670d\u52a1\u5668\u4e3a\u4ec0\u4e48\u5e94\u8be5\u51fa\u73b0\u5bf9\u5e94\u884c\u4e3a&#xff0c;\u4ee5\u53ca\u5f53\u524d\u6d4b\u8bd5\u4ee3\u7801\u672c\u8eab\u8fd8\u6709\u54ea\u4e9b\u53ef\u4ee5\u7ee7\u7eed\u5b8c\u5584\u7684\u5730\u65b9\u3002<\/p>\n<h3>\u4e00\u3001\u6d4b\u8bd5\u524d\u5148\u660e\u786e\u4e09\u4e2a\u4e8b\u5b9e<\/h3>\n<h4>1. TCP \u662f\u5b57\u8282\u6d41&#xff0c;\u6ca1\u6709\u6d88\u606f\u8fb9\u754c<\/h4>\n<p>\u5ba2\u6237\u7aef\u8c03\u7528\u4e00\u6b21 send()&#xff0c;\u4e0d\u4ee3\u8868\u670d\u52a1\u5668\u4e00\u5b9a\u901a\u8fc7\u4e00\u6b21 recv() \u5f97\u5230\u76f8\u540c\u7684\u6570\u636e&#xff1b;\u5ba2\u6237\u7aef\u8fde\u7eed\u8c03\u7528\u4e09\u6b21 send()&#xff0c;\u670d\u52a1\u7aef\u4e5f\u53ef\u80fd\u4e00\u6b21\u5168\u90e8\u6536\u5230\u3002<\/p>\n<p>TCP \u53ea\u4fdd\u8bc1\u5b57\u8282\u6309\u987a\u5e8f\u5230\u8fbe&#xff0c;\u4e0d\u4fdd\u8bc1\u5e94\u7528\u5c42\u6d88\u606f\u7684\u5206\u6bb5\u65b9\u5f0f\u3002\u56e0\u6b64&#xff0c;HTTP \u670d\u52a1\u5668\u4e0d\u80fd\u628a\u201c\u4e00\u6b21\u8bfb\u53d6\u201d\u76f4\u63a5\u5f53\u6210\u201c\u4e00\u6761\u8bf7\u6c42\u201d&#xff0c;\u800c\u5fc5\u987b\u901a\u8fc7\u8bf7\u6c42\u884c\u3001\u7a7a\u884c\u3001Content-Length \u7b49\u534f\u8bae\u5b57\u6bb5\u786e\u5b9a\u771f\u6b63\u7684\u62a5\u6587\u8fb9\u754c\u3002<\/p>\n<h4>2. Content-Length \u51b3\u5b9a\u540e\u7eed\u5b57\u8282\u5c5e\u4e8e\u8c01<\/h4>\n<p>\u5728\u672c\u6587\u6d4b\u8bd5\u6ca1\u6709\u4f7f\u7528 Transfer-Encoding\u3001\u53ea\u901a\u8fc7 Content-Length \u5b9a\u754c\u6b63\u6587\u7684\u524d\u63d0\u4e0b&#xff0c;\u5982\u679c\u8bf7\u6c42\u5934\u58f0\u660e&#xff1a;<\/p>\n<p>Content-Length: 100<\/p>\n<p>\u90a3\u4e48\u670d\u52a1\u5668\u5c31\u4f1a\u628a\u5934\u90e8\u7ed3\u675f\u540e\u7684 100 \u4e2a\u5b57\u8282\u89c6\u4e3a\u5f53\u524d\u8bf7\u6c42\u7684\u6b63\u6587\u3002\u5373\u4f7f\u5ba2\u6237\u7aef\u53ea\u60f3\u53d1\u9001 11 \u4e2a\u6b63\u6587\u5b57\u7b26&#xff0c;\u540e\u9762\u7d27\u63a5\u7740\u53d1\u9001\u7684\u4e0b\u4e00\u6761 HTTP \u8bf7\u6c42&#xff0c;\u4e5f\u4f1a\u88ab\u670d\u52a1\u5668\u7ee7\u7eed\u5f53\u4f5c\u524d\u4e00\u6761\u8bf7\u6c42\u7684\u6b63\u6587\u3002<\/p>\n<p>\u670d\u52a1\u5668\u65e0\u6cd5\u731c\u6d4b\u5ba2\u6237\u7aef\u7684\u771f\u5b9e\u610f\u56fe&#xff0c;\u53ea\u80fd\u6309\u7167\u534f\u8bae\u7ed9\u51fa\u7684\u8fb9\u754c\u89e3\u6790\u5b57\u8282\u6d41\u3002\u5de5\u7a0b\u5b9e\u73b0\u8fd8\u9700\u8981\u6b63\u786e\u5904\u7406 Transfer-Encoding\u3001\u51b2\u7a81\u957f\u5ea6\u5b57\u6bb5\u548c\u4e0d\u652f\u6301\u7684\u5206\u5757\u7f16\u7801&#xff0c;\u4e0d\u80fd\u65e0\u6761\u4ef6\u628a\u6240\u6709\u8bf7\u6c42\u90fd\u7b80\u5316\u6210\u8fd9\u4e00\u79cd\u5b9a\u754c\u65b9\u5f0f\u3002<\/p>\n<h4>3. \u7a7a\u95f2\u8d85\u65f6\u4e0d\u662f\u8fde\u63a5\u603b\u65f6\u957f<\/h4>\n<p>\u5047\u8bbe\u670d\u52a1\u5668\u8bbe\u7f6e\u4e86 10 \u79d2\u975e\u6d3b\u8dc3\u8d85\u65f6&#xff1a;<\/p>\n<ul>\n<li>\u4e00\u6761\u8fde\u63a5\u5b58\u5728\u4e86 1 \u5206\u949f&#xff0c;\u4f46\u6bcf 3 \u79d2\u90fd\u6709\u901a\u4fe1&#xff0c;\u5b83\u4ecd\u7136\u662f\u6d3b\u8dc3\u8fde\u63a5&#xff1b;<\/li>\n<li>\u4e00\u6761\u8fde\u63a5\u53ea\u5efa\u7acb\u4e86 10 \u79d2&#xff0c;\u4f46\u671f\u95f4\u6ca1\u6709\u4efb\u4f55\u4e8b\u4ef6&#xff0c;\u5b83\u5c31\u5e94\u8be5\u88ab\u56de\u6536\u3002<\/li>\n<\/ul>\n<p>\u56e0\u6b64&#xff0c;\u957f\u8fde\u63a5\u6d4b\u8bd5\u9700\u8981\u540c\u65f6\u9a8c\u8bc1\u4e24\u4e2a\u65b9\u5411&#xff1a;\u6d3b\u8dc3\u8fde\u63a5\u4e0d\u80fd\u88ab\u8bef\u5220&#xff0c;\u771f\u6b63\u7a7a\u95f2\u7684\u8fde\u63a5\u4e5f\u4e0d\u80fd\u4e00\u76f4\u5360\u7528 fd \u548c\u5185\u5b58\u3002<\/p>\n<h3>\u4e8c\u3001\u516d\u7ec4\u6d4b\u8bd5\u6982\u89c8<\/h3>\n<p>\u672c\u8f6e\u5ba2\u6237\u7aef\u7edf\u4e00\u8fde\u63a5\u672c\u673a 8085 \u7aef\u53e3&#xff0c;\u666e\u901a\u8bf7\u6c42\u8bbf\u95ee \/hello&#xff0c;\u4e0a\u4f20\u6d4b\u8bd5\u5219\u4f7f\u7528 PUT \/1234.txt\u3002\u82e5\u670d\u52a1\u5668\u4f7f\u7528\u9879\u76ee\u4e2d\u5e38\u89c1\u7684 10 \u79d2\u975e\u6d3b\u8dc3\u8d85\u65f6\u914d\u7f6e&#xff0c;\u90a3\u4e48 3 \u79d2\u548c 15 \u79d2\u4e24\u4e2a\u53d1\u9001\u95f4\u9694\u521a\u597d\u53ef\u4ee5\u5206\u522b\u8986\u76d6\u201c\u6301\u7eed\u6d3b\u8dc3\u201d\u548c\u201c\u5df2\u7ecf\u7a7a\u95f2\u8d85\u65f6\u201d\u4e24\u79cd\u60c5\u51b5\u3002\u4e0a\u4f20\u6d4b\u8bd5\u8fd8\u8981\u6c42\u670d\u52a1\u5668\u63d0\u524d\u6ce8\u518c\u5bf9\u5e94\u7684 PUT Handler&#xff0c;\u5e76\u7531 Handler \u628a\u8bf7\u6c42\u6b63\u6587\u5199\u5165\u76ee\u6807\u6587\u4ef6\u3002<\/p>\n<p>\u8fd9\u4e9b\u8bf7\u6c42\u662f\u9762\u5411\u5f53\u524d\u81ea\u5b9a\u4e49\u89e3\u6790\u5668\u7f16\u5199\u7684\u7b80\u5316\u62a5\u6587&#xff0c;\u7701\u7565\u4e86 HTTP\/1.1 \u6b63\u5f0f\u8bf7\u6c42\u901a\u5e38\u5fc5\u987b\u643a\u5e26\u7684 Host \u5b57\u6bb5\u3002\u82e5\u7528\u4e8e\u901a\u7528 HTTP \u517c\u5bb9\u6027\u6d4b\u8bd5&#xff0c;\u5e94\u8865\u4e0a Host: 127.0.0.1:8085&#xff1b;\u672c\u6587\u4e3a\u4e86\u4fdd\u6301\u539f\u6d4b\u8bd5\u4ee3\u7801\u4ee5\u53ca\u540e\u9762\u7684\u5b57\u8282\u6570\u63a8\u5bfc\u4e0d\u53d8&#xff0c;\u4ecd\u6309\u5f53\u524d\u7b80\u5316\u683c\u5f0f\u5206\u6790\u3002<\/p>\n<p>\u4e0b\u9762\u8bb0\u5f55\u7684\u662f\u6d4b\u8bd5\u4ee3\u7801\u8def\u5f84\u5206\u6790\u548c\u53ef\u6267\u884c\u7684\u9a8c\u6536\u6807\u51c6\u3002\u7531\u4e8e\u8fd9\u91cc\u6ca1\u6709\u9644\u8fd0\u884c\u65e5\u5fd7\u3001fd \u6307\u6807\u6216\u6587\u4ef6\u54c8\u5e0c&#xff0c;\u672a\u5c55\u793a\u8bc1\u636e\u7684\u90e8\u5206\u4e0d\u4f5c\u4e3a\u201c\u5df2\u7ecf\u5b9e\u6d4b\u901a\u8fc7\u201d\u7684\u7ed3\u8bba\u3002<\/p>\n<table>\n<tr>\u5ba2\u6237\u7aef\u6d4b\u8bd5\u91cd\u70b9\u670d\u52a1\u5668\u7684\u9a8c\u6536\u6807\u51c6<\/tr>\n<tbody>\n<tr>\n<td>client1.cpp<\/td>\n<td>\u6d3b\u8dc3\u957f\u8fde\u63a5<\/td>\n<td>\u6301\u7eed\u5237\u65b0\u6d3b\u8dc3\u5ea6&#xff0c;\u8fde\u63a5\u603b\u65f6\u957f\u8d85\u8fc7\u9608\u503c\u4e5f\u4e0d\u88ab\u8bef\u56de\u6536<\/td>\n<\/tr>\n<tr>\n<td>client2.cpp<\/td>\n<td>\u7a7a\u95f2\u8fde\u63a5\u56de\u6536<\/td>\n<td>\u957f\u65f6\u95f4\u6ca1\u6709\u4e8b\u4ef6\u540e\u4e3b\u52a8\u91ca\u653e\u8fde\u63a5<\/td>\n<\/tr>\n<tr>\n<td>client3.cpp<\/td>\n<td>\u9519\u8bef\u7684 Content-Length<\/td>\n<td>\u6309\u58f0\u660e\u957f\u5ea6\u7b49\u5f85\u6b63\u6587&#xff0c;\u6d41\u9519\u4f4d\u540e\u5b89\u5168\u62a5\u9519\u6216\u5173\u95ed&#xff0c;\u4e0d\u80fd\u5d29\u6e83<\/td>\n<\/tr>\n<tr>\n<td>client4.cpp<\/td>\n<td>\u5e76\u53d1\u4e8b\u4ef6\u4e0e\u6162\u4e1a\u52a1<\/td>\n<td>\u8d85\u65f6\u91ca\u653e\u4e0d\u80fd\u5bfc\u81f4\u5f53\u524d\u5c31\u7eea\u4e8b\u4ef6\u8bbf\u95ee\u60ac\u7a7a\u5bf9\u8c61<\/td>\n<\/tr>\n<tr>\n<td>client5.cpp<\/td>\n<td>\u591a\u6761\u8bf7\u6c42\u8fde\u7eed\u5230\u8fbe<\/td>\n<td>\u9010\u6761\u89e3\u6790\u4e09\u6761\u8bf7\u6c42&#xff0c;\u5e76\u6309\u987a\u5e8f\u751f\u6210\u4e09\u6761\u54cd\u5e94<\/td>\n<\/tr>\n<tr>\n<td>client6.cpp<\/td>\n<td>\u5927\u8bf7\u6c42\u4f53\u4e0a\u4f20<\/td>\n<td>\u5728\u5df2\u6ce8\u518c\u4fdd\u5b58 Handler \u7684\u524d\u63d0\u4e0b&#xff0c;\u5b8c\u6574\u63a5\u6536\u6b63\u6587\u5e76\u6821\u9a8c\u843d\u76d8\u5185\u5bb9<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u4e0b\u9762\u9010\u9879\u5206\u6790\u3002<\/p>\n<h3>\u4e09\u3001\u6d4b\u8bd5\u4e00&#xff1a;\u6301\u7eed\u6d3b\u8dc3\u7684\u957f\u8fde\u63a5\u4e0d\u80fd\u88ab\u8bef\u56de\u6536<\/h3>\n<h4>1. \u5ba2\u6237\u7aef\u4ee3\u7801<\/h4>\n<p><span class=\"token comment\">\/* \u957f\u8fde\u63a5\u6d4b\u8bd5&#xff1a;<br \/>\n * \u5ba2\u6237\u7aef\u6301\u7eed\u7ed9\u670d\u52a1\u5668\u53d1\u9001\u6570\u636e\u3002<br \/>\n * \u5373\u4f7f\u8fde\u63a5\u603b\u751f\u5b58\u65f6\u95f4\u8d85\u8fc7\u7a7a\u95f2\u8d85\u65f6\u9608\u503c&#xff0c;<br \/>\n * \u53ea\u8981\u4e00\u76f4\u6d3b\u8dc3&#xff0c;\u5c31\u4e0d\u5e94\u8be5\u88ab\u670d\u52a1\u5668\u56de\u6536\u3002<br \/>\n *\/<\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&#034;..\/source\/server.hpp&#034;<\/span><\/span><\/p>\n<p><span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    Socket cli_sock<span class=\"token punctuation\">;<\/span><br \/>\n    cli_sock<span class=\"token punctuation\">.<\/span><span class=\"token function\">CreateClient<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">8085<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;127.0.0.1&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    std<span class=\"token double-colon punctuation\">::<\/span>string req <span class=\"token operator\">&#061;<\/span><br \/>\n        <span class=\"token string\">&#034;GET \/hello HTTP\/1.1\\\\r\\\\n&#034;<\/span><br \/>\n        <span class=\"token string\">&#034;Connection: keep-alive\\\\r\\\\n&#034;<\/span><br \/>\n        <span class=\"token string\">&#034;Content-Length: 0\\\\r\\\\n\\\\r\\\\n&#034;<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token function\">assert<\/span><span class=\"token punctuation\">(<\/span>cli_sock<span class=\"token punctuation\">.<\/span><span class=\"token function\">Send<\/span><span class=\"token punctuation\">(<\/span>req<span class=\"token punctuation\">.<\/span><span class=\"token function\">c_str<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> req<span class=\"token punctuation\">.<\/span><span class=\"token function\">size<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">!&#061;<\/span> <span class=\"token operator\">&#8211;<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">char<\/span> buf<span class=\"token punctuation\">[<\/span><span class=\"token number\">1024<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">assert<\/span><span class=\"token punctuation\">(<\/span>cli_sock<span class=\"token punctuation\">.<\/span><span class=\"token function\">Recv<\/span><span class=\"token punctuation\">(<\/span>buf<span class=\"token punctuation\">,<\/span> <span class=\"token number\">1023<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">DBG_LOG<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;[%s]&#034;<\/span><span class=\"token punctuation\">,<\/span> buf<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token function\">sleep<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">3<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    cli_sock<span class=\"token punctuation\">.<\/span><span class=\"token function\">Close<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>2. \u8fd9\u4e2a\u6d4b\u8bd5\u771f\u6b63\u9a8c\u8bc1\u7684\u662f\u4ec0\u4e48<\/h4>\n<p>\u5ba2\u6237\u7aef\u6bcf\u9694 3 \u79d2\u53d1\u9001\u4e00\u6761\u8bf7\u6c42\u3002\u5047\u8bbe\u670d\u52a1\u5668\u7684\u975e\u6d3b\u8dc3\u8d85\u65f6\u662f 10 \u79d2&#xff0c;\u90a3\u4e48\u8be5\u8fde\u63a5\u7684 Channel \u4e8b\u4ef6\u88ab\u5904\u7406\u540e&#xff0c;\u8fde\u63a5\u5bf9\u5e94\u7684\u5b9a\u65f6\u4efb\u52a1\u4f1a\u88ab\u5237\u65b0\u5230\u65b0\u7684\u8fc7\u671f\u4f4d\u7f6e\u3002\u5f53\u524d\u56de\u8c03\u987a\u5e8f\u662f\u5148\u6267\u884c\u8bfb\u5199\u53ca\u540c\u6b65\u4e1a\u52a1\u56de\u8c03&#xff0c;\u6700\u540e\u518d\u5237\u65b0\u6d3b\u8dc3\u5ea6&#xff1b;\u8fd9\u4e2a\u987a\u5e8f\u5728\u540e\u9762\u7684\u6162\u4e1a\u52a1\u6d4b\u8bd5\u4e2d\u975e\u5e38\u5173\u952e\u3002<\/p>\n<p>\u8fd9\u91cc\u201c\u8d85\u8fc7\u8d85\u65f6\u65f6\u95f4\u201d\u7684\u4e0d\u662f\u4e24\u6b21\u901a\u4fe1\u4e4b\u95f4\u7684\u7a7a\u95f2\u65f6\u957f&#xff0c;\u800c\u662f\u8fde\u63a5\u7684\u603b\u751f\u5b58\u65f6\u95f4\u3002\u6bd4\u5982\u5ba2\u6237\u7aef\u8fde\u7eed\u8fd0\u884c 1 \u5206\u949f&#xff0c;\u8fde\u63a5\u65e9\u5df2\u5b58\u5728\u8d85\u8fc7 10 \u79d2&#xff0c;\u4f46\u56e0\u4e3a\u4e00\u76f4\u6709\u4e8b\u4ef6\u53d1\u751f&#xff0c;\u5b83\u4e0d\u5e94\u8be5\u88ab\u91ca\u653e\u3002<\/p>\n<p>\u670d\u52a1\u5668\u5185\u90e8\u7684\u903b\u8f91\u53ef\u4ee5\u6982\u62ec\u4e3a&#xff1a;<\/p>\n<p>\u5efa\u7acb\u8fde\u63a5<br \/>\n   \u2193<br \/>\n\u6dfb\u52a0\u7a7a\u95f2\u8d85\u65f6\u4efb\u52a1<br \/>\n   \u2193<br \/>\n\u6536\u5230\u8bf7\u6c42\u6216\u53d1\u751f\u8fde\u63a5\u4e8b\u4ef6<br \/>\n   \u2193<br \/>\n\u5237\u65b0\u8be5\u8fde\u63a5\u7684\u8d85\u65f6\u4efb\u52a1<br \/>\n   \u2193<br \/>\n\u7ee7\u7eed\u4fdd\u7559\u8fde\u63a5<\/p>\n<h4>3. \u901a\u8fc7\u6807\u51c6<\/h4>\n<p>\u8fd9\u4e2a\u5ba2\u6237\u7aef\u81f3\u5c11\u8fde\u7eed\u8fd0\u884c\u591a\u4e2a\u8d85\u65f6\u5468\u671f&#xff0c;\u5e76\u4e14\u6ee1\u8db3&#xff1a;<\/p>\n<ul>\n<li>\u6bcf\u6b21\u8bf7\u6c42\u90fd\u80fd\u6536\u5230\u6b63\u5e38\u54cd\u5e94&#xff1b;<\/li>\n<li>\u670d\u52a1\u7aef\u4e0d\u4f1a\u5728\u67d0\u4e2a\u56fa\u5b9a\u65f6\u95f4\u70b9\u8bef\u5220\u8fde\u63a5&#xff1b;<\/li>\n<li>\u540c\u4e00\u6761 TCP \u8fde\u63a5\u53ef\u4ee5\u88ab\u6301\u7eed\u590d\u7528&#xff1b;<\/li>\n<li>\u914d\u5408\u670d\u52a1\u7aef\u5b9a\u65f6\u5668\u65e5\u5fd7&#xff0c;\u53ef\u4ee5\u786e\u8ba4\u4efb\u52a1\u88ab\u53cd\u590d\u5237\u65b0\u540e\u6ca1\u6709\u91cd\u590d\u89e6\u53d1\u91ca\u653e\u3002<\/li>\n<\/ul>\n<p>\u8fd9\u7ec4\u6d4b\u8bd5\u9a8c\u8bc1\u7684\u662f\u201c\u6d3b\u8dc3\u8fde\u63a5\u4fdd\u6d3b\u201d&#xff0c;\u800c\u4e0d\u662f\u201c\u7a7a\u95f2\u8fde\u63a5\u5173\u95ed\u201d\u3002<\/p>\n<h3>\u56db\u3001\u6d4b\u8bd5\u4e8c&#xff1a;\u771f\u6b63\u7a7a\u95f2\u7684\u8fde\u63a5\u5e94\u8be5\u88ab\u53ca\u65f6\u91ca\u653e<\/h3>\n<h4>1. \u5ba2\u6237\u7aef\u4ee3\u7801<\/h4>\n<p><span class=\"token comment\">\/* \u8d85\u65f6\u8fde\u63a5\u6d4b\u8bd5&#xff1a;<br \/>\n * \u53d1\u9001\u5e76\u63a5\u6536\u4e00\u6b21\u6570\u636e\u540e\u7b49\u5f85\u8f83\u957f\u65f6\u95f4&#xff0c;<br \/>\n * \u67e5\u770b\u670d\u52a1\u5668\u662f\u5426\u4f1a\u6309\u975e\u6d3b\u8dc3\u8d85\u65f6\u91ca\u653e\u8fde\u63a5\u3002<br \/>\n *\/<\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&#034;..\/source\/server.hpp&#034;<\/span><\/span><\/p>\n<p><span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    Socket cli_sock<span class=\"token punctuation\">;<\/span><br \/>\n    cli_sock<span class=\"token punctuation\">.<\/span><span class=\"token function\">CreateClient<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">8085<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;127.0.0.1&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    std<span class=\"token double-colon punctuation\">::<\/span>string req <span class=\"token operator\">&#061;<\/span><br \/>\n        <span class=\"token string\">&#034;GET \/hello HTTP\/1.1\\\\r\\\\n&#034;<\/span><br \/>\n        <span class=\"token string\">&#034;Connection: keep-alive\\\\r\\\\n&#034;<\/span><br \/>\n        <span class=\"token string\">&#034;Content-Length: 0\\\\r\\\\n\\\\r\\\\n&#034;<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token function\">assert<\/span><span class=\"token punctuation\">(<\/span>cli_sock<span class=\"token punctuation\">.<\/span><span class=\"token function\">Send<\/span><span class=\"token punctuation\">(<\/span>req<span class=\"token punctuation\">.<\/span><span class=\"token function\">c_str<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> req<span class=\"token punctuation\">.<\/span><span class=\"token function\">size<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">!&#061;<\/span> <span class=\"token operator\">&#8211;<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">char<\/span> buf<span class=\"token punctuation\">[<\/span><span class=\"token number\">1024<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">assert<\/span><span class=\"token punctuation\">(<\/span>cli_sock<span class=\"token punctuation\">.<\/span><span class=\"token function\">Recv<\/span><span class=\"token punctuation\">(<\/span>buf<span class=\"token punctuation\">,<\/span> <span class=\"token number\">1023<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">DBG_LOG<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;[%s]&#034;<\/span><span class=\"token punctuation\">,<\/span> buf<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token function\">sleep<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">15<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    cli_sock<span class=\"token punctuation\">.<\/span><span class=\"token function\">Close<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>2. \u4ee3\u7801\u884c\u4e3a\u4e0e\u6ce8\u91ca\u7684\u533a\u522b<\/h4>\n<p>\u539f\u672c\u7684\u6d4b\u8bd5\u610f\u56fe\u662f\u201c\u53d1\u9001\u4e00\u6b21\u4ee5\u540e\u4e0d\u518d\u6d3b\u52a8\u201d&#xff0c;\u4f46\u5f53\u524d\u4ee3\u7801\u4ecd\u7136\u4fdd\u7559\u4e86 while \u5faa\u73af&#xff0c;\u53ea\u662f\u628a\u4e24\u8f6e\u901a\u4fe1\u4e4b\u95f4\u7684\u95f4\u9694\u6539\u6210\u4e86 15 \u79d2\u3002<\/p>\n<p>\u5982\u679c\u670d\u52a1\u5668\u8bbe\u7f6e\u7684\u662f 10 \u79d2\u975e\u6d3b\u8dc3\u8d85\u65f6&#xff0c;\u90a3\u4e48\u5b8c\u6574\u8fc7\u7a0b\u662f&#xff1a;<\/p>\n<p>\u7b2c 0 \u79d2&#xff1a;\u53d1\u9001\u8bf7\u6c42\u5e76\u6536\u5230\u54cd\u5e94<br \/>\n\u7b2c 0&#xff5e;10 \u79d2&#xff1a;\u8fde\u63a5\u6ca1\u6709\u4efb\u4f55\u6d3b\u52a8<br \/>\n\u7ea6\u7b2c 10 \u79d2\u9644\u8fd1&#xff1a;\u670d\u52a1\u5668\u5f00\u59cb\u5904\u7406\u5230\u671f\u4efb\u52a1\u5e76\u91ca\u653e\u8fde\u63a5<br \/>\n\u7b2c 15 \u79d2&#xff1a;\u5ba2\u6237\u7aef\u8fdb\u5165\u4e0b\u4e00\u8f6e&#xff0c;\u63a2\u6d4b\u539f\u8fde\u63a5\u662f\u5426\u5df2\u7ecf\u5173\u95ed<\/p>\n<p>\u65f6\u95f4\u8f6e\u901a\u5e38\u8fd8\u6709 1 \u79d2\u7ea7 tick \u7cbe\u5ea6&#xff0c;\u5b9e\u9645\u5173\u95ed\u65f6\u523b\u4e5f\u4f1a\u53d7\u8fde\u63a5\u52a0\u5165\u69fd\u4f4d\u7684\u65f6\u95f4\u3001\u4e8b\u4ef6\u5faa\u73af\u963b\u585e\u548c\u4efb\u52a1\u8c03\u5ea6\u5f71\u54cd&#xff0c;\u6240\u4ee5\u8fd9\u91cc\u4e0d\u5e94\u628a\u201c\u7b2c 10 \u79d2\u201d\u7406\u89e3\u6210\u4e25\u683c\u7684\u5899\u4e0a\u65f6\u95f4\u3002<\/p>\n<p>\u56e0\u6b64&#xff0c;\u8fd9\u6bb5\u4ee3\u7801\u53ef\u4ee5\u53d1\u8d77\u4e00\u6b21\u8d85\u65f6\u5173\u95ed\u63a2\u6d4b&#xff0c;\u7b2c\u4e8c\u8f6e Send() \u6216 Recv() \u627f\u62c5\u7684\u662f\u201c\u68c0\u67e5\u539f\u8fde\u63a5\u662f\u5426\u5df2\u7ecf\u88ab\u670d\u52a1\u5668\u5173\u95ed\u201d\u7684\u4f5c\u7528\u3002\u4e0d\u8fc7&#xff0c;\u9996\u6b21\u5411\u5df2\u6536\u5230 FIN \u7684\u8fde\u63a5\u53d1\u9001\u4ecd\u53ef\u80fd\u6682\u65f6\u6210\u529f&#xff0c;\u5f53\u524d assert(Recv(&#8230;)) \u4e5f\u4e0d\u80fd\u53ef\u9760\u8bc6\u522b -1\u3002\u8981\u5f62\u6210\u53ef\u4fe1\u7ed3\u8bba&#xff0c;\u8fd8\u9700\u8981\u663e\u5f0f\u68c0\u67e5\u6536\u53d1\u8fd4\u56de\u503c&#xff0c;\u6216\u8005\u7ed3\u5408\u670d\u52a1\u7aef\u7684\u8d85\u65f6\u5173\u95ed\u65e5\u5fd7\u3002<\/p>\n<h4>3. \u901a\u8fc7\u6807\u51c6<\/h4>\n<ul>\n<li>\u670d\u52a1\u5668\u5728\u8fde\u63a5\u7a7a\u95f2\u8d85\u8fc7\u9608\u503c\u4ee5\u540e\u5c06\u5176\u79fb\u51fa\u8fde\u63a5\u8868&#xff1b;<\/li>\n<li>\u5bf9\u5e94\u7684 Channel\u3001socket \u548c\u5b9a\u65f6\u4efb\u52a1\u90fd\u5f97\u5230\u6e05\u7406&#xff1b;<\/li>\n<li>\u5ba2\u6237\u7aef\u4e0b\u4e00\u6b21\u901a\u4fe1\u65f6\u80fd\u591f\u611f\u77e5\u8fde\u63a5\u5173\u95ed\u6216\u91cd\u7f6e&#xff1b;<\/li>\n<li>\u670d\u52a1\u7aef\u4e0d\u4f1a\u7559\u4e0b\u5931\u6548\u8fde\u63a5&#xff0c;\u4e5f\u4e0d\u4f1a\u91cd\u590d\u91ca\u653e\u540c\u4e00\u5bf9\u8c61\u3002<\/li>\n<\/ul>\n<p>\u5982\u679c\u60f3\u8ba9\u4ee3\u7801\u4e0e\u201c\u53ea\u53d1\u9001\u4e00\u6b21\u201d\u7684\u6ce8\u91ca\u5b8c\u5168\u4e00\u81f4&#xff0c;\u53ef\u4ee5\u53bb\u6389\u5916\u5c42\u5faa\u73af&#xff1a;\u5b8c\u6210\u4e00\u6b21\u8bf7\u6c42\u540e\u76f4\u63a5\u7b49\u5f85\u8d85\u8fc7\u8d85\u65f6\u9608\u503c&#xff0c;\u518d\u901a\u8fc7\u4e00\u6b21\u63a5\u6536\u6216\u53d1\u9001\u68c0\u67e5\u8fde\u63a5\u72b6\u6001\u3002<\/p>\n<h3>\u4e94\u3001\u6d4b\u8bd5\u4e09&#xff1a;\u6545\u610f\u4f2a\u9020 Content-Length<\/h3>\n<h4>1. \u5ba2\u6237\u7aef\u4ee3\u7801<\/h4>\n<p><span class=\"token comment\">\/* \u58f0\u660e\u4e00\u4e2a\u5927\u4e8e\u5b9e\u9645\u6b63\u6587\u7684 Content-Length&#xff0c;<br \/>\n * \u67e5\u770b\u670d\u52a1\u5668\u5982\u4f55\u5904\u7406\u4e0d\u5b8c\u6574\u8bf7\u6c42\u4ee5\u53ca\u540e\u7eed\u5b57\u8282\u6d41\u9519\u4f4d\u3002<br \/>\n *\/<\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&#034;..\/source\/server.hpp&#034;<\/span><\/span><\/p>\n<p><span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    Socket cli_sock<span class=\"token punctuation\">;<\/span><br \/>\n    cli_sock<span class=\"token punctuation\">.<\/span><span class=\"token function\">CreateClient<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">8085<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;127.0.0.1&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    std<span class=\"token double-colon punctuation\">::<\/span>string req <span class=\"token operator\">&#061;<\/span><br \/>\n        <span class=\"token string\">&#034;GET \/hello HTTP\/1.1\\\\r\\\\n&#034;<\/span><br \/>\n        <span class=\"token string\">&#034;Connection: keep-alive\\\\r\\\\n&#034;<\/span><br \/>\n        <span class=\"token string\">&#034;Content-Length: 100\\\\r\\\\n\\\\r\\\\n&#034;<\/span><br \/>\n        <span class=\"token string\">&#034;bitejiuyeke&#034;<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token function\">assert<\/span><span class=\"token punctuation\">(<\/span>cli_sock<span class=\"token punctuation\">.<\/span><span class=\"token function\">Send<\/span><span class=\"token punctuation\">(<\/span>req<span class=\"token punctuation\">.<\/span><span class=\"token function\">c_str<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> req<span class=\"token punctuation\">.<\/span><span class=\"token function\">size<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">!&#061;<\/span> <span class=\"token operator\">&#8211;<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">assert<\/span><span class=\"token punctuation\">(<\/span>cli_sock<span class=\"token punctuation\">.<\/span><span class=\"token function\">Send<\/span><span class=\"token punctuation\">(<\/span>req<span class=\"token punctuation\">.<\/span><span class=\"token function\">c_str<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> req<span class=\"token punctuation\">.<\/span><span class=\"token function\">size<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">!&#061;<\/span> <span class=\"token operator\">&#8211;<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">assert<\/span><span class=\"token punctuation\">(<\/span>cli_sock<span class=\"token punctuation\">.<\/span><span class=\"token function\">Send<\/span><span class=\"token punctuation\">(<\/span>req<span class=\"token punctuation\">.<\/span><span class=\"token function\">c_str<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> req<span class=\"token punctuation\">.<\/span><span class=\"token function\">size<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">!&#061;<\/span> <span class=\"token operator\">&#8211;<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">char<\/span> buf<span class=\"token punctuation\">[<\/span><span class=\"token number\">1024<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">assert<\/span><span class=\"token punctuation\">(<\/span>cli_sock<span class=\"token punctuation\">.<\/span><span class=\"token function\">Recv<\/span><span class=\"token punctuation\">(<\/span>buf<span class=\"token punctuation\">,<\/span> <span class=\"token number\">1023<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">DBG_LOG<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;[%s]&#034;<\/span><span class=\"token punctuation\">,<\/span> buf<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token function\">sleep<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">3<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    cli_sock<span class=\"token punctuation\">.<\/span><span class=\"token function\">Close<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>2. \u5b9e\u9645\u6570\u636e\u5e76\u4e0d\u662f 1024 \u5b57\u8282<\/h4>\n<p>\u8fd9\u6bb5\u6d4b\u8bd5\u6700\u9700\u8981\u5148\u6f84\u6e05\u7684\u4e00\u70b9\u662f&#xff1a;\u4ee3\u7801\u4e2d\u58f0\u660e\u7684\u6b63\u6587\u957f\u5ea6\u662f 100 \u5b57\u8282&#xff0c;\u4e0d\u662f\u6ce8\u91ca\u4e2d\u63d0\u5230\u7684 1024 \u5b57\u8282&#xff1b;\u5b9e\u9645\u6b63\u6587 &#034;bitejiuyeke&#034; \u5219\u53ea\u6709 11 \u5b57\u8282\u3002<\/p>\n<p>\u5982\u679c\u53ea\u53d1\u9001\u4e00\u6b21&#xff0c;\u670d\u52a1\u5668\u89e3\u6790\u5b8c\u8bf7\u6c42\u5934\u4ee5\u540e\u4f1a\u53d1\u73b0&#xff1a;<\/p>\n<p>\u58f0\u660e\u6b63\u6587\u957f\u5ea6&#xff1a;100 \u5b57\u8282<br \/>\n\u5f53\u524d\u6536\u5230\u6b63\u6587&#xff1a; 11 \u5b57\u8282<br \/>\n\u4ecd\u7136\u7f3a\u5c11&#xff1a;     89 \u5b57\u8282<\/p>\n<p>\u6b64\u65f6\u670d\u52a1\u5668\u4e0d\u5e94\u8be5\u63d0\u524d\u8fdb\u5165\u4e1a\u52a1\u5904\u7406&#xff0c;\u56e0\u4e3a\u5b83\u8fd8\u6ca1\u6709\u5f97\u5230\u4e00\u6761\u5b8c\u6574\u8bf7\u6c42\u3002\u6b63\u786e\u884c\u4e3a\u662f\u4fdd\u7559\u5f53\u524d HttpContext \u7684 BODY \u72b6\u6001&#xff0c;\u7b49\u5f85\u540e\u7eed\u6570\u636e&#xff1b;\u5982\u679c\u5ba2\u6237\u7aef\u4e00\u76f4\u4e0d\u518d\u53d1\u9001&#xff0c;\u6700\u7ec8\u7531\u7a7a\u95f2\u8d85\u65f6\u673a\u5236\u91ca\u653e\u8fde\u63a5\u3002<\/p>\n<h4>3. \u8fde\u7eed\u53d1\u9001\u4e09\u6b21\u540e\u4f1a\u53d1\u751f\u4ec0\u4e48<\/h4>\n<p>\u5f53\u524d\u4ee3\u7801\u4e0d\u662f\u53ea\u53d1\u9001\u4e00\u6b21&#xff0c;\u800c\u662f\u8fde\u7eed\u53d1\u9001\u4e09\u4efd\u76f8\u540c\u5185\u5bb9\u3002\u5728\u4e09\u6b21 Send() \u90fd\u5b8c\u6574\u63d0\u4ea4 79 \u5b57\u8282\u7684\u524d\u63d0\u4e0b&#xff0c;\u5355\u4efd\u5b57\u7b26\u4e32\u7684\u957f\u5ea6\u53ef\u4ee5\u62c6\u6210&#xff1a;<\/p>\n<table>\n<tr>\u7ec4\u6210\u90e8\u5206\u5b57\u8282\u6570<\/tr>\n<tbody>\n<tr>\n<td>\u8bf7\u6c42\u884c\u548c\u8bf7\u6c42\u5934<\/td>\n<td align=\"right\">68<\/td>\n<\/tr>\n<tr>\n<td>\u5b9e\u9645\u6b63\u6587 bitejiuyeke<\/td>\n<td align=\"right\">11<\/td>\n<\/tr>\n<tr>\n<td>\u5355\u4efd\u8bf7\u6c42\u5b57\u7b26\u4e32\u603b\u957f<\/td>\n<td align=\"right\">79<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u7b2c\u4e00\u6761\u8bf7\u6c42\u58f0\u660e\u9700\u8981 100 \u5b57\u8282\u6b63\u6587&#xff0c;\u56e0\u6b64\u89e3\u6790\u5668\u4f1a\u4f9d\u6b21\u6d88\u8d39&#xff1a;<\/p>\n<li>\u7b2c\u4e00\u4efd\u6570\u636e\u4e2d\u7684 11 \u5b57\u8282\u6b63\u6587&#xff1b;<\/li>\n<li>\u5b8c\u6574\u7684\u7b2c\u4e8c\u4efd 79 \u5b57\u8282\u6570\u636e&#xff1b;<\/li>\n<li>\u7b2c\u4e09\u4efd\u6570\u636e\u5f00\u5934\u7684 10 \u5b57\u8282 &#034;GET \/hello&#034;\u3002<\/li>\n<p>\u6b63\u597d\u5f97\u5230&#xff1a;<\/p>\n<p>11 &#043; 79 &#043; 10 &#061; 100<\/p>\n<p>\u4e8e\u662f&#xff0c;\u5728\u670d\u52a1\u5668\u770b\u6765&#xff0c;\u7b2c\u4e00\u6761\u8bf7\u6c42\u7ec8\u4e8e\u5b8c\u6574\u4e86\u3002\u4f46\u662f\u5b83\u7684\u6b63\u6587\u5df2\u7ecf\u53d8\u6210&#xff1a;<\/p>\n<p>bitejiuyeke<br \/>\n&#043; \u5b8c\u6574\u7684\u7b2c\u4e8c\u6761\u201c\u8bf7\u6c42\u201d<br \/>\n&#043; \u7b2c\u4e09\u6761\u8bf7\u6c42\u5f00\u5934\u7684 GET \/hello<\/p>\n<p>\u5904\u7406\u5b8c\u7b2c\u4e00\u6761\u8bf7\u6c42\u5e76\u91cd\u7f6e HTTP \u4e0a\u4e0b\u6587\u540e&#xff0c;\u8f93\u5165\u7f13\u51b2\u533a\u8fd8\u5269\u4e0b\u7b2c\u4e09\u4efd\u6570\u636e\u7684\u540e 69 \u5b57\u8282&#xff0c;\u5e76\u4e14\u5f00\u5934\u5df2\u7ecf\u53d8\u6210&#xff1a;<\/p>\n<p> HTTP\/1.1\\\\r\\\\n<br \/>\nConnection: keep-alive\\\\r\\\\n<br \/>\n&#8230;<\/p>\n<p>\u8fd9\u663e\u7136\u4e0d\u518d\u662f\u4e00\u6761\u5408\u6cd5\u8bf7\u6c42\u884c\u3002\u6309\u7167\u5f53\u524d HttpServer::OnMessage() \u7684\u9519\u8bef\u5206\u652f&#xff0c;\u4e0b\u4e00\u8f6e\u89e3\u6790\u4f1a\u751f\u6210 400 Bad Request \u4e00\u7c7b\u7684\u9519\u8bef\u54cd\u5e94\u3001\u4e22\u5f03\u5269\u4f59\u8f93\u5165&#xff0c;\u5e76\u5173\u95ed\u8fd9\u6761\u5df2\u7ecf\u5931\u53bb\u53ef\u9760\u8fb9\u754c\u7684\u8fde\u63a5\u3002<\/p>\n<h4>4. \u8fd9\u4e2a\u73b0\u8c61\u662f\u4e0d\u662f\u670d\u52a1\u5668\u89e3\u6790\u9519\u8bef<\/h4>\n<p>\u4e0d\u662f\u3002<\/p>\n<p>\u670d\u52a1\u5668\u53ea\u80fd\u76f8\u4fe1\u5ba2\u6237\u7aef\u58f0\u660e\u7684 Content-Length\u3002\u5728\u7b2c\u4e00\u6761\u8bf7\u6c42\u6b63\u6587\u6ca1\u6709\u6536\u6ee1\u4ee5\u524d&#xff0c;\u540e\u7eed\u5230\u8fbe\u7684\u5b57\u8282\u90fd\u5fc5\u987b\u88ab\u89c6\u4e3a\u5f53\u524d\u6b63\u6587&#xff0c;\u800c\u4e0d\u80fd\u4ec5\u51ed\u5b83\u4eec\u201c\u957f\u5f97\u50cf GET \u8bf7\u6c42\u201d\u5c31\u64c5\u81ea\u5207\u6362\u8fb9\u754c\u3002<\/p>\n<p>\u8fd9\u4e2a\u6d4b\u8bd5\u771f\u6b63\u9a8c\u8bc1\u7684\u662f&#xff1a;<\/p>\n<ul>\n<li>\u534a\u5305\u65f6&#xff0c;\u670d\u52a1\u5668\u4e0d\u4f1a\u63d0\u524d\u6267\u884c\u4e1a\u52a1&#xff1b;<\/li>\n<li>\u5982\u679c\u4f20\u8f93\u5728\u7f51\u7edc\u5c42\u53d1\u751f\u5206\u6bb5&#xff0c;BODY \u72b6\u6001\u80fd\u591f\u8de8\u4e8b\u4ef6\u4fdd\u5b58\u5e76\u7ee7\u7eed\u63a5\u6536&#xff1b;<\/li>\n<li>\u4e00\u65e6\u540e\u7eed\u8bf7\u6c42\u884c\u56e0\u8fb9\u754c\u9519\u4f4d\u800c\u975e\u6cd5&#xff0c;\u670d\u52a1\u5668\u80fd\u591f\u5b89\u5168\u62a5\u9519\u5e76\u5173\u95ed\u8fde\u63a5&#xff1b;<\/li>\n<li>\u6574\u4e2a\u8fc7\u7a0b\u4e2d\u4e0d\u80fd\u53d1\u751f\u8d8a\u754c\u8bbf\u95ee\u3001\u6b7b\u5faa\u73af\u6216\u5d29\u6e83\u3002<\/li>\n<\/ul>\n<p>\u5b83\u4e5f\u8bf4\u660e\u4e86\u4e3a\u4ec0\u4e48 Content-Length \u4e0d\u53ea\u662f\u4e00\u4e2a\u666e\u901a\u8bf7\u6c42\u5934&#xff0c;\u800c\u662f HTTP \u6d88\u606f\u89e3\u6790\u4e2d\u7684\u5b89\u5168\u8fb9\u754c\u3002\u5f53\u524d\u4e09\u6b21\u8fde\u7eed Send() \u5e76\u6ca1\u6709\u5f3a\u5236\u4ea7\u751f\u4e09\u6b21\u7f51\u7edc\u4e8b\u4ef6&#xff0c;\u56e0\u6b64\u8fd9\u6bb5\u7a0b\u5e8f\u4e3b\u8981\u7a33\u5b9a\u6784\u9020\u7684\u662f\u5b57\u8282\u6d41\u9519\u4f4d&#xff1b;\u5982\u679c\u8981\u4e13\u95e8\u8986\u76d6\u201c\u8de8\u4e8b\u4ef6\u7eed\u63a5\u201d&#xff0c;\u8fd8\u9700\u8981\u63a7\u5236\u53d1\u9001\u8282\u594f\u6216\u51cf\u5c0f\u6bcf\u6b21\u53d1\u9001\u957f\u5ea6\u3002<\/p>\n<h3>\u516d\u3001\u6d4b\u8bd5\u56db&#xff1a;\u6162\u4e1a\u52a1\u3001\u8d85\u65f6\u4efb\u52a1\u4e0e\u4e8b\u4ef6\u751f\u547d\u5468\u671f<\/h3>\n<h4>1. \u5ba2\u6237\u7aef\u4ee3\u7801<\/h4>\n<p><span class=\"token comment\">\/* \u5e76\u53d1\u4e0e\u4e1a\u52a1\u5904\u7406\u8d85\u65f6\u6d4b\u8bd5 *\/<\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&#034;..\/source\/server.hpp&#034;<\/span><\/span><\/p>\n<p><span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token function\">signal<\/span><span class=\"token punctuation\">(<\/span>SIGCHLD<span class=\"token punctuation\">,<\/span> SIG_IGN<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">10<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        pid_t pid <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">fork<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>pid <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token function\">DBG_LOG<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;FORK ERROR&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token operator\">&#8211;<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">else<\/span> <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>pid <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            Socket cli_sock<span class=\"token punctuation\">;<\/span><br \/>\n            cli_sock<span class=\"token punctuation\">.<\/span><span class=\"token function\">CreateClient<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">8085<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;127.0.0.1&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>            std<span class=\"token double-colon punctuation\">::<\/span>string req <span class=\"token operator\">&#061;<\/span><br \/>\n                <span class=\"token string\">&#034;GET \/hello HTTP\/1.1\\\\r\\\\n&#034;<\/span><br \/>\n                <span class=\"token string\">&#034;Connection: keep-alive\\\\r\\\\n&#034;<\/span><br \/>\n                <span class=\"token string\">&#034;Content-Length: 0\\\\r\\\\n\\\\r\\\\n&#034;<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>            <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                <span class=\"token function\">assert<\/span><span class=\"token punctuation\">(<\/span>cli_sock<span class=\"token punctuation\">.<\/span><span class=\"token function\">Send<\/span><span class=\"token punctuation\">(<\/span>req<span class=\"token punctuation\">.<\/span><span class=\"token function\">c_str<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n                                     req<span class=\"token punctuation\">.<\/span><span class=\"token function\">size<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">!&#061;<\/span> <span class=\"token operator\">&#8211;<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>                <span class=\"token keyword\">char<\/span> buf<span class=\"token punctuation\">[<\/span><span class=\"token number\">1024<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token function\">assert<\/span><span class=\"token punctuation\">(<\/span>cli_sock<span class=\"token punctuation\">.<\/span><span class=\"token function\">Recv<\/span><span class=\"token punctuation\">(<\/span>buf<span class=\"token punctuation\">,<\/span> <span class=\"token number\">1023<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token function\">DBG_LOG<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;[%s]&#034;<\/span><span class=\"token punctuation\">,<\/span> buf<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><\/p>\n<p>            cli_sock<span class=\"token punctuation\">.<\/span><span class=\"token function\">Close<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token function\">exit<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token function\">sleep<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>2. \u8fd9\u6bb5\u5ba2\u6237\u7aef\u672c\u8eab\u5236\u9020\u7684\u662f\u5e76\u53d1\u538b\u529b<\/h4>\n<p>\u7236\u8fdb\u7a0b\u901a\u8fc7 fork() \u521b\u5efa 10 \u4e2a\u5b50\u8fdb\u7a0b&#xff0c;\u6bcf\u4e2a\u5b50\u8fdb\u7a0b\u90fd\u5efa\u7acb\u72ec\u7acb\u8fde\u63a5\u5e76\u4e0d\u65ad\u8bf7\u6c42 \/hello\u3002SIGCHLD \u88ab\u8bbe\u7f6e\u4e3a\u5ffd\u7565&#xff0c;\u7528\u4e8e\u907f\u514d\u5b50\u8fdb\u7a0b\u9000\u51fa\u540e\u5f62\u6210\u50f5\u5c38\u8fdb\u7a0b\u3002<\/p>\n<p>\u9700\u8981\u6ce8\u610f\u7684\u662f&#xff0c;\u5ba2\u6237\u7aef\u4ee3\u7801\u672c\u8eab\u5e76\u6ca1\u6709\u5236\u9020\u201c\u5355\u6b21\u4e1a\u52a1\u5904\u7406 30 \u79d2\u201d\u3002\u8981\u590d\u73b0\u6ce8\u91ca\u63cf\u8ff0\u7684\u6162\u4e1a\u52a1\u573a\u666f&#xff0c;\u8fd8\u9700\u8981\u8ba9\u670d\u52a1\u5668\u7684 \/hello \u5904\u7406\u51fd\u6570\u4e3b\u52a8\u963b\u585e&#xff0c;\u5e76\u4e14\u963b\u585e\u65f6\u95f4\u8d85\u8fc7\u975e\u6d3b\u8dc3\u8d85\u65f6\u9608\u503c\u3002\u4f8b\u5982&#xff1a;<\/p>\n<p><span class=\"token keyword\">void<\/span> <span class=\"token function\">Hello<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> HttpRequest <span class=\"token operator\">&amp;<\/span>req<span class=\"token punctuation\">,<\/span> HttpResponse <span class=\"token operator\">*<\/span>rsp<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token function\">sleep<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">30<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    rsp<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">SetContent<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;hello&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;text\/plain&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u5982\u679c\u4e0d\u589e\u52a0\u8fd9\u4e2a\u524d\u7f6e\u6761\u4ef6&#xff0c;client4.cpp \u4e3b\u8981\u9a8c\u8bc1\u7684\u662f\u591a\u8fdb\u7a0b\u5e76\u53d1\u8fde\u63a5\u548c\u6301\u7eed\u8bf7\u6c42\u7a33\u5b9a\u6027\u3002<\/p>\n<h4>3. \u4e3a\u4ec0\u4e48\u6162\u4e1a\u52a1\u53ef\u80fd\u5f15\u53d1\u60ac\u7a7a\u4e8b\u4ef6<\/h4>\n<p>\u4e00\u6b21 epoll_wait() \u53ef\u80fd\u540c\u65f6\u8fd4\u56de\u591a\u4e2a\u5df2\u7ecf\u5c31\u7eea\u7684 Channel\u3002\u4e0b\u9762\u53ea\u662f\u7528\u4e8e\u8bf4\u660e\u98ce\u9669\u7684\u4e00\u79cd\u53ef\u80fd\u987a\u5e8f&#xff0c;epoll \u5e76\u4e0d\u4fdd\u8bc1\u6d3b\u8dc3\u4e8b\u4ef6\u6309\u7167\u8fd9\u4e2a\u6392\u5217\u8fd4\u56de&#xff1a;<\/p>\n<p>actives &#061; [\u8fde\u63a51, timerfd, \u8fde\u63a53, \u8fde\u63a54, \u8fde\u63a55]<\/p>\n<p>\u5047\u8bbe\u5904\u7406\u8fde\u63a5 1 \u65f6&#xff0c;\u4e1a\u52a1\u56de\u8c03\u963b\u585e\u4e86 30 \u79d2&#xff1a;<\/p>\n<p>\u5904\u7406\u8fde\u63a51<br \/>\n   \u2193<br \/>\n\u4e1a\u52a1\u963b\u585e30\u79d2<br \/>\n   \u2193<br \/>\ntimerfd \u5df2\u7d2f\u8ba1\u591a\u6b21\u8d85\u65f6<br \/>\n   \u2193<br \/>\n\u5f00\u59cb\u5904\u7406 timerfd \u4e8b\u4ef6<\/p>\n<p>\u8fd9 30 \u79d2\u5185&#xff0c;\u540c\u4e00\u4e2a EventLoop \u4e0a\u7684\u5176\u4ed6\u8fde\u63a5\u5373\u4f7f\u539f\u672c\u5df2\u7ecf\u5c31\u7eea&#xff0c;\u4e5f\u6ca1\u6709\u673a\u4f1a\u53ca\u65f6\u8fdb\u5165\u81ea\u5df1\u7684\u56de\u8c03\u5e76\u5237\u65b0\u6d3b\u8dc3\u5ea6\u3002\u6162\u8fde\u63a5\u81ea\u8eab\u7684\u6d3b\u8dc3\u5ea6\u5237\u65b0\u540c\u6837\u8981\u7b49\u4e1a\u52a1\u56de\u8c03\u8fd4\u56de\u3002\u5728\u5f53\u524d\u6309\u7167\u201c\u5c1a\u672a\u8ffd\u8d76\u7684 _tick &#043; delay\u201d\u9009\u62e9\u5237\u65b0\u69fd\u4f4d\u7684\u5b9e\u73b0\u4e2d&#xff0c;\u5373\u4f7f\u6162\u56de\u8c03\u8fd4\u56de\u540e\u5148\u6267\u884c\u4e86\u5237\u65b0&#xff0c;\u968f\u540e timerfd \u4e00\u6b21\u8ffd\u8d76\u5927\u91cf\u7d2f\u8ba1 tick \u65f6&#xff0c;\u65b0\u69fd\u4f4d\u4ecd\u53ef\u80fd\u5f88\u5feb\u88ab\u8d70\u5230\u3002\u56e0\u6b64&#xff0c;\u6162\u8fde\u63a5\u81ea\u8eab\u6216\u540c\u4e00\u4e8b\u4ef6\u5faa\u73af\u4e0a\u7684\u5176\u4ed6\u8fde\u63a5\u90fd\u6709\u53ef\u80fd\u88ab\u5224\u5b9a\u5230\u671f\u3002<\/p>\n<p>\u4e3b\u4ece Reactor \u4e0b&#xff0c;\u5176\u4ed6\u5de5\u4f5c EventLoop \u548c\u4e3b\u76d1\u542c\u5faa\u73af\u901a\u5e38\u4ecd\u80fd\u7ee7\u7eed\u8fd0\u884c&#xff1b;\u53ea\u6709\u5f53\u591a\u4e2a\u5de5\u4f5c\u7ebf\u7a0b\u90fd\u88ab\u6162\u4e1a\u52a1\u5360\u6ee1\u65f6&#xff0c;\u5f71\u54cd\u624d\u4f1a\u8fdb\u4e00\u6b65\u6269\u5927\u3002\u7531\u4e8e epoll \u7684\u8fd4\u56de\u987a\u5e8f\u4e0d\u56fa\u5b9a&#xff0c;\u5355\u6b21\u8fd0\u884c\u4e5f\u4e0d\u4e00\u5b9a\u547d\u4e2d\u4e0a\u9762\u7684\u5371\u9669\u6392\u5217&#xff0c;\u7a33\u5b9a\u590d\u73b0\u9700\u8981\u91cd\u590d\u538b\u529b\u3001\u670d\u52a1\u7aef\u65e5\u5fd7\u6216\u4e13\u95e8\u7684\u6545\u969c\u6ce8\u5165\u3002<\/p>\n<p>\u5371\u9669\u70b9\u5728\u4e8e&#xff1a;actives \u4e2d\u8fd8\u4fdd\u5b58\u7740\u8fde\u63a5 3\u30014\u30015 \u5bf9\u5e94\u7684 Channel *\u3002\u5982\u679c\u5b9a\u65f6\u5668\u56de\u8c03\u5f53\u573a\u9500\u6bc1\u8fd9\u4e9b\u8fde\u63a5\u5bf9\u8c61&#xff0c;\u4e8b\u4ef6\u5faa\u73af\u7ee7\u7eed\u904d\u5386 actives \u65f6&#xff0c;\u5c31\u4f1a\u8bbf\u95ee\u5df2\u7ecf\u91ca\u653e\u7684\u5185\u5b58&#xff0c;\u6700\u7ec8\u51fa\u73b0\u6bb5\u9519\u8bef\u3002<\/p>\n<p>timerfd \u56de\u8c03\u7acb\u5373\u5220\u9664\u8fde\u63a53<br \/>\n          \u2193<br \/>\nactives \u4e2d\u4ecd\u4fdd\u5b58\u8fde\u63a53\u7684 Channel *<br \/>\n          \u2193<br \/>\n\u968f\u540e\u8c03\u7528 Channel::HandleEvent()<br \/>\n          \u2193<br \/>\n\u8bbf\u95ee\u60ac\u7a7a\u6307\u9488&#xff0c;\u7a0b\u5e8f\u5d29\u6e83<\/p>\n<h4>4. \u4e3a\u4ec0\u4e48\u91ca\u653e\u64cd\u4f5c\u8981\u5ef6\u540e<\/h4>\n<p>\u5f53\u524d\u9879\u76ee\u4e2d\u7684 Connection::Release() \u4e0d\u76f4\u63a5\u6e05\u7406\u8fde\u63a5&#xff0c;\u800c\u662f\u628a\u771f\u6b63\u7684 ReleaseInLoop() \u653e\u5165\u4e8b\u4ef6\u5faa\u73af\u4efb\u52a1\u961f\u5217\u3002<\/p>\n<p>\u4e8b\u4ef6\u5faa\u73af\u7684\u987a\u5e8f\u662f&#xff1a;<\/p>\n<p>epoll_wait<br \/>\n   \u2193<br \/>\n\u5904\u7406\u672c\u6279\u5168\u90e8\u6d3b\u8dc3 Channel<br \/>\n   \u2193<br \/>\n\u6267\u884c\u4efb\u52a1\u961f\u5217<\/p>\n<p>\u56e0\u6b64&#xff0c;\u8d85\u65f6\u56de\u8c03\u53ea\u8d1f\u8d23\u767b\u8bb0\u201c\u8fd9\u6761\u8fde\u63a5\u9700\u8981\u91ca\u653e\u201d\u3002\u672c\u6279\u6d3b\u8dc3\u4e8b\u4ef6\u5904\u7406\u5b8c\u6210\u540e&#xff0c;\u6240\u5c5e\u5de5\u4f5c EventLoop \u624d\u6267\u884c ReleaseInLoop()&#xff0c;\u79fb\u9664 Channel \u5e76\u5173\u95ed socket&#xff1b;\u670d\u52a1\u5668\u8fde\u63a5\u8868\u7684\u5220\u9664\u8fd8\u53ef\u80fd\u901a\u8fc7\u5173\u95ed\u56de\u8c03\u7ee7\u7eed\u6295\u9012\u5230\u4e3b EventLoop&#xff0c;\u5206\u9636\u6bb5\u5b8c\u6210\u3002<\/p>\n<p>\u8fd9\u6837\u53ef\u4ee5\u907f\u514d\u201c\u672c\u6279 actives \u4ecd\u6301\u6709 Channel * \u65f6\u7acb\u5373\u9500\u6bc1\u8fde\u63a5\u201d\u8fd9\u4e00\u7c7b\u60ac\u7a7a\u8bbf\u95ee\u3002\u5b83\u5e76\u4e0d\u81ea\u52a8\u89e3\u51b3\u6240\u6709\u751f\u547d\u5468\u671f\u98ce\u9669&#xff0c;\u5f02\u6b65\u4efb\u52a1\u4e2d\u7684\u88f8 this\u3001\u91cd\u590d\u91ca\u653e\u7b49\u8def\u5f84\u4ecd\u9700\u8981\u72ec\u7acb\u7684\u6240\u6709\u6743\u7ea6\u675f\u548c\u5e42\u7b49\u4fdd\u62a4\u3002<\/p>\n<h4>5. \u901a\u8fc7\u6807\u51c6\u4e0e\u80fd\u529b\u8fb9\u754c<\/h4>\n<p>\u8fd9\u7ec4\u6d4b\u8bd5\u9700\u8981\u914d\u5408\u670d\u52a1\u7aef\u5173\u95ed\u539f\u56e0\u3001\u8fde\u63a5\u8868\u548c fd \u6307\u6807&#xff0c;\u91cd\u70b9\u89c2\u5bdf&#xff1a;<\/p>\n<ul>\n<li>\u670d\u52a1\u7aef\u5728\u5e76\u53d1\u8fde\u63a5\u548c\u6162\u4e1a\u52a1\u4e0b\u4e0d\u4f1a\u5d29\u6e83&#xff1b;<\/li>\n<li>\u8d85\u65f6\u8fde\u63a5\u6700\u7ec8\u80fd\u591f\u88ab\u5b89\u5168\u91ca\u653e&#xff1b;<\/li>\n<li>\u540c\u4e00\u8fde\u63a5\u4e0d\u4f1a\u88ab\u9519\u8bef\u3001\u6302\u65ad\u548c\u8d85\u65f6\u8def\u5f84\u91cd\u590d\u91ca\u653e&#xff1b;<\/li>\n<li>\u505c\u6b62\u5ba2\u6237\u7aef\u5e76\u7b49\u5f85\u6e05\u7406\u540e&#xff0c;\u8fde\u63a5\u8868\u548c fd \u6570\u91cf\u80fd\u591f\u56de\u843d&#xff1b;<\/li>\n<li>\u540e\u7eed\u65b0\u8fde\u63a5\u4ecd\u7136\u53ef\u4ee5\u5efa\u7acb\u5e76\u5f97\u5230\u5904\u7406\u3002<\/li>\n<\/ul>\n<p>\u5ef6\u8fdf\u91ca\u653e\u89e3\u51b3\u7684\u662f\u5bf9\u8c61\u751f\u547d\u5468\u671f\u5b89\u5168&#xff0c;\u4f46\u5b83\u4e0d\u80fd\u89e3\u51b3\u6162\u4e1a\u52a1\u672c\u8eab\u9020\u6210\u7684\u6027\u80fd\u95ee\u9898\u3002\u53ea\u8981\u4e1a\u52a1\u903b\u8f91\u4ecd\u5728 IO \u7ebf\u7a0b\u4e2d\u540c\u6b65\u963b\u585e&#xff0c;\u540c\u4e00\u4e2a EventLoop \u4e0a\u7684\u5176\u4ed6\u8fde\u63a5\u5c31\u4f1a\u4e00\u8d77\u7b49\u5f85\u3002<\/p>\n<p>\u66f4\u5b8c\u6574\u7684\u6539\u8fdb\u65b9\u5411\u662f\u628a\u8017\u65f6\u4e1a\u52a1\u63d0\u4ea4\u5230\u72ec\u7acb\u5de5\u4f5c\u7ebf\u7a0b\u6c60&#xff0c;\u6216\u8005\u6539\u9020\u6210\u5f02\u6b65\u4efb\u52a1&#xff0c;\u8ba9 IO \u7ebf\u7a0b\u53ea\u8d1f\u8d23\u5feb\u901f\u5b8c\u6210\u7f51\u7edc\u4e8b\u4ef6\u5904\u7406\u3002<\/p>\n<h3>\u4e03\u3001\u6d4b\u8bd5\u4e94&#xff1a;\u4e00\u6b21\u53d1\u9001\u4e09\u6761 HTTP \u8bf7\u6c42<\/h3>\n<h4>1. \u5ba2\u6237\u7aef\u4ee3\u7801<\/h4>\n<p><span class=\"token comment\">\/* \u4e00\u6b21\u7ed9\u670d\u52a1\u5668\u53d1\u9001\u591a\u6761\u8bf7\u6c42&#xff0c;<br \/>\n * \u6bcf\u4e00\u6761\u8bf7\u6c42\u90fd\u5e94\u8be5\u5f97\u5230\u6b63\u5e38\u5904\u7406\u3002<br \/>\n *\/<\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&#034;..\/source\/server.hpp&#034;<\/span><\/span><\/p>\n<p><span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    Socket cli_sock<span class=\"token punctuation\">;<\/span><br \/>\n    cli_sock<span class=\"token punctuation\">.<\/span><span class=\"token function\">CreateClient<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">8085<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;127.0.0.1&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    std<span class=\"token double-colon punctuation\">::<\/span>string req <span class=\"token operator\">&#061;<\/span><br \/>\n        <span class=\"token string\">&#034;GET \/hello HTTP\/1.1\\\\r\\\\n&#034;<\/span><br \/>\n        <span class=\"token string\">&#034;Connection: keep-alive\\\\r\\\\n&#034;<\/span><br \/>\n        <span class=\"token string\">&#034;Content-Length: 0\\\\r\\\\n\\\\r\\\\n&#034;<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    req <span class=\"token operator\">&#043;&#061;<\/span><br \/>\n        <span class=\"token string\">&#034;GET \/hello HTTP\/1.1\\\\r\\\\n&#034;<\/span><br \/>\n        <span class=\"token string\">&#034;Connection: keep-alive\\\\r\\\\n&#034;<\/span><br \/>\n        <span class=\"token string\">&#034;Content-Length: 0\\\\r\\\\n\\\\r\\\\n&#034;<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    req <span class=\"token operator\">&#043;&#061;<\/span><br \/>\n        <span class=\"token string\">&#034;GET \/hello HTTP\/1.1\\\\r\\\\n&#034;<\/span><br \/>\n        <span class=\"token string\">&#034;Connection: keep-alive\\\\r\\\\n&#034;<\/span><br \/>\n        <span class=\"token string\">&#034;Content-Length: 0\\\\r\\\\n\\\\r\\\\n&#034;<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token function\">assert<\/span><span class=\"token punctuation\">(<\/span>cli_sock<span class=\"token punctuation\">.<\/span><span class=\"token function\">Send<\/span><span class=\"token punctuation\">(<\/span>req<span class=\"token punctuation\">.<\/span><span class=\"token function\">c_str<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> req<span class=\"token punctuation\">.<\/span><span class=\"token function\">size<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">!&#061;<\/span> <span class=\"token operator\">&#8211;<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">char<\/span> buf<span class=\"token punctuation\">[<\/span><span class=\"token number\">1024<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">assert<\/span><span class=\"token punctuation\">(<\/span>cli_sock<span class=\"token punctuation\">.<\/span><span class=\"token function\">Recv<\/span><span class=\"token punctuation\">(<\/span>buf<span class=\"token punctuation\">,<\/span> <span class=\"token number\">1023<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">DBG_LOG<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;[%s]&#034;<\/span><span class=\"token punctuation\">,<\/span> buf<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token function\">sleep<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">3<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    cli_sock<span class=\"token punctuation\">.<\/span><span class=\"token function\">Close<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>2. \u8fd9\u7ec4\u6d4b\u8bd5\u9a8c\u8bc1\u201c\u7c98\u5305\u201d\u4e0e\u6d41\u6c34\u7ebf\u8bf7\u6c42<\/h4>\n<p>\u8fd9\u91cc\u628a\u4e09\u6761\u5b8c\u6574\u8bf7\u6c42\u62fc\u8fdb\u540c\u4e00\u4e2a std::string&#xff0c;\u7136\u540e\u4e00\u6b21\u4ea4\u7ed9 Send()\u3002\u6bcf\u6761\u8bf7\u6c42\u90fd\u662f Content-Length: 0&#xff0c;\u56e0\u6b64\u89e3\u6790\u5668\u8bfb\u5230\u5934\u90e8\u540e\u7684\u7a7a\u884c\u65f6&#xff0c;\u5c31\u53ef\u4ee5\u786e\u8ba4\u5f53\u524d\u8bf7\u6c42\u5df2\u7ecf\u5b8c\u6574\u3002<\/p>\n<p>\u670d\u52a1\u5668\u4e0d\u80fd\u5728\u5904\u7406\u5b8c\u7b2c\u4e00\u6761\u8bf7\u6c42\u540e\u76f4\u63a5\u6e05\u7a7a\u6574\u4e2a\u8f93\u5165\u7f13\u51b2\u533a&#xff0c;\u800c\u5e94\u8be5&#xff1a;<\/p>\n<p>\u89e3\u6790\u7b2c1\u6761\u8bf7\u6c42<br \/>\n   \u2193<br \/>\n\u8def\u7531\u5e76\u751f\u6210\u7b2c1\u6761\u54cd\u5e94<br \/>\n   \u2193<br \/>\n\u91cd\u7f6e\u5f53\u524d HttpContext<br \/>\n   \u2193<br \/>\n\u53d1\u73b0 Buffer \u4e2d\u4ecd\u6709\u6570\u636e<br \/>\n   \u2193<br \/>\n\u7ee7\u7eed\u89e3\u6790\u7b2c2\u6761\u3001\u7b2c3\u6761\u8bf7\u6c42<\/p>\n<p>\u5f53\u524d HttpServer::OnMessage() \u5916\u5c42\u7684 while \u5faa\u73af\u6b63\u662f\u4e3a\u8fd9\u4e2a\u573a\u666f\u51c6\u5907\u7684&#xff1a;\u6bcf\u6b21\u53ea\u6d88\u8d39\u5f53\u524d\u8bf7\u6c42\u5bf9\u5e94\u7684\u5b57\u8282&#xff0c;\u5904\u7406\u5b8c\u6210\u540e\u91cd\u65b0\u68c0\u67e5 Buffer \u4e2d\u662f\u5426\u4ecd\u6709\u53ef\u8bfb\u6570\u636e\u3002<\/p>\n<p>\u5728\u5b8c\u6574 198 \u5b57\u8282\u90fd\u5df2\u7ecf\u6210\u529f\u63d0\u4ea4\u7684\u524d\u63d0\u4e0b&#xff0c;\u5373\u4f7f TCP \u6700\u7ec8\u628a\u5b83\u4eec\u62c6\u6210\u591a\u6b21\u5230\u8fbe&#xff0c;\u7ed3\u679c\u4e5f\u4e0d\u5e94\u8be5\u6539\u53d8\u3002\u6bcf\u6761\u8fde\u63a5\u90fd\u6709\u72ec\u7acb\u7684 HttpContext \u4fdd\u5b58\u89e3\u6790\u72b6\u6001&#xff0c;\u672a\u5b8c\u6210\u7684\u6570\u636e\u53ef\u4ee5\u8de8\u591a\u6b21\u53ef\u8bfb\u4e8b\u4ef6\u7ee7\u7eed\u5904\u7406\u3002<\/p>\n<h4>3. \u901a\u8fc7\u6807\u51c6<\/h4>\n<ul>\n<li>\u4e09\u6761\u8bf7\u6c42\u90fd\u88ab\u8def\u7531\u5230 \/hello&#xff1b;<\/li>\n<li>\u670d\u52a1\u7aef\u6309\u8bf7\u6c42\u987a\u5e8f\u751f\u6210\u4e09\u6761\u54cd\u5e94&#xff1b;<\/li>\n<li>\u4e0d\u4f1a\u53ea\u5904\u7406\u7b2c\u4e00\u6761&#xff0c;\u4e5f\u4e0d\u4f1a\u628a\u4e09\u6761\u8bf7\u6c42\u62fc\u6210\u4e00\u4e2a\u9519\u8bef\u8bf7\u6c42&#xff1b;<\/li>\n<li>\u5904\u7406\u5b8c\u4ee5\u540e&#xff0c;\u8f93\u5165\u7f13\u51b2\u533a\u4e2d\u4e0d\u518d\u6709\u672c\u8f6e\u8bf7\u6c42\u7559\u4e0b\u7684\u53ef\u8bfb\u6570\u636e&#xff1b;<\/li>\n<li>\u8fde\u63a5\u4fdd\u6301\u53ef\u590d\u7528&#xff0c;\u4e0b\u4e00\u8f6e\u4e09\u6761\u8bf7\u6c42\u4ecd\u80fd\u7ee7\u7eed\u5904\u7406\u3002<\/li>\n<\/ul>\n<p>\u4e0d\u8fc7&#xff0c;\u5f53\u524d\u5ba2\u6237\u7aef\u53ea\u8c03\u7528\u4e86\u4e00\u6b21 Recv()\u3002TCP \u540c\u6837\u4e0d\u4fdd\u8bc1\u4e00\u6b21 Recv() \u6070\u597d\u5f97\u5230\u4e09\u6761\u5b8c\u6574\u54cd\u5e94&#xff1a;\u5b83\u53ef\u80fd\u53ea\u8fd4\u56de\u534a\u6761\u54cd\u5e94&#xff0c;\u4e5f\u53ef\u80fd\u8fd4\u56de\u4e00\u6761\u3001\u4e24\u6761\u6216\u4e09\u6761\u3002<\/p>\n<p>\u56e0\u6b64&#xff0c;\u670d\u52a1\u7aef\u65e5\u5fd7\u53ef\u4ee5\u5e2e\u52a9\u89c2\u5bdf\u4e09\u6b21\u4e1a\u52a1\u5904\u7406\u662f\u5426\u53d1\u751f&#xff0c;\u4f46\u8981\u628a\u8fd9\u6bb5\u4ee3\u7801\u5347\u7ea7\u4e3a\u81ea\u52a8\u5316\u6d4b\u8bd5&#xff0c;\u5ba2\u6237\u7aef\u8fd8\u9700\u8981\u6309\u7167\u54cd\u5e94\u5934\u548c Content-Length \u6301\u7eed\u89e3\u6790&#xff0c;\u660e\u786e\u7edf\u8ba1\u6536\u5230\u4e86\u4e09\u6761\u5b8c\u6574\u54cd\u5e94\u3002<\/p>\n<h3>\u516b\u3001\u6d4b\u8bd5\u516d&#xff1a;\u4e0a\u4f20\u4e00\u4e2a\u8f83\u5927\u7684\u8bf7\u6c42\u4f53<\/h3>\n<h4>1. \u5ba2\u6237\u7aef\u4ee3\u7801<\/h4>\n<p>\u8fd9\u4e2a\u6d4b\u8bd5\u6709\u4e00\u4e2a\u4e1a\u52a1\u524d\u63d0&#xff1a;\u670d\u52a1\u5668\u5df2\u7ecf\u6ce8\u518c PUT \/1234.txt \u5bf9\u5e94\u7684 Handler&#xff0c;\u5e76\u5728 Handler \u4e2d\u4f7f\u7528 Util::WriteFile() \u6216\u7b49\u4ef7\u903b\u8f91\u4fdd\u5b58\u6b63\u6587\u3002HttpServer \u53ea\u8d1f\u8d23\u5b8c\u6210\u89e3\u6790\u548c\u8def\u7531\u5206\u53d1&#xff0c;PUT \u65b9\u6cd5\u672c\u8eab\u5e76\u4e0d\u4f1a\u81ea\u52a8\u628a URL \u6620\u5c04\u6210\u78c1\u76d8\u6587\u4ef6\u3002<\/p>\n<p><span class=\"token comment\">\/* \u5927\u8bf7\u6c42\u4f53\u4e0a\u4f20\u6d4b\u8bd5&#xff1a;<br \/>\n * \u4e0a\u4f20 hello.txt&#xff0c;\u670d\u52a1\u5668\u5c06\u6b63\u6587\u4fdd\u5b58\u4e3a 1234.txt\u3002<br \/>\n *\/<\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&#034;..\/source\/http\/http.hpp&#034;<\/span><\/span><\/p>\n<p><span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    Socket cli_sock<span class=\"token punctuation\">;<\/span><br \/>\n    cli_sock<span class=\"token punctuation\">.<\/span><span class=\"token function\">CreateClient<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">8085<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;127.0.0.1&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    std<span class=\"token double-colon punctuation\">::<\/span>string req <span class=\"token operator\">&#061;<\/span><br \/>\n        <span class=\"token string\">&#034;PUT \/1234.txt HTTP\/1.1\\\\r\\\\n&#034;<\/span><br \/>\n        <span class=\"token string\">&#034;Connection: keep-alive\\\\r\\\\n&#034;<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    std<span class=\"token double-colon punctuation\">::<\/span>string body<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token class-name\">Util<\/span><span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">ReadFile<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;.\/hello.txt&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>body<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    req <span class=\"token operator\">&#043;&#061;<\/span> <span class=\"token string\">&#034;Content-Length: &#034;<\/span> <span class=\"token operator\">&#043;<\/span><br \/>\n           std<span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">to_string<\/span><span class=\"token punctuation\">(<\/span>body<span class=\"token punctuation\">.<\/span><span class=\"token function\">size<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#043;<\/span><br \/>\n           <span class=\"token string\">&#034;\\\\r\\\\n\\\\r\\\\n&#034;<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token function\">assert<\/span><span class=\"token punctuation\">(<\/span>cli_sock<span class=\"token punctuation\">.<\/span><span class=\"token function\">Send<\/span><span class=\"token punctuation\">(<\/span>req<span class=\"token punctuation\">.<\/span><span class=\"token function\">c_str<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> req<span class=\"token punctuation\">.<\/span><span class=\"token function\">size<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">!&#061;<\/span> <span class=\"token operator\">&#8211;<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">assert<\/span><span class=\"token punctuation\">(<\/span>cli_sock<span class=\"token punctuation\">.<\/span><span class=\"token function\">Send<\/span><span class=\"token punctuation\">(<\/span>body<span class=\"token punctuation\">.<\/span><span class=\"token function\">c_str<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> body<span class=\"token punctuation\">.<\/span><span class=\"token function\">size<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">!&#061;<\/span> <span class=\"token operator\">&#8211;<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">char<\/span> buf<span class=\"token punctuation\">[<\/span><span class=\"token number\">1024<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">assert<\/span><span class=\"token punctuation\">(<\/span>cli_sock<span class=\"token punctuation\">.<\/span><span class=\"token function\">Recv<\/span><span class=\"token punctuation\">(<\/span>buf<span class=\"token punctuation\">,<\/span> <span class=\"token number\">1023<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">DBG_LOG<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;[%s]&#034;<\/span><span class=\"token punctuation\">,<\/span> buf<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token function\">sleep<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">3<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    cli_sock<span class=\"token punctuation\">.<\/span><span class=\"token function\">Close<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>2. \u4e3a\u4ec0\u4e48\u5934\u90e8\u548c\u6b63\u6587\u5206\u4e24\u6b21\u53d1\u9001\u4ecd\u7136\u4e0d\u4ee3\u8868\u4e24\u4e2a\u5305<\/h4>\n<p>\u5ba2\u6237\u7aef\u5148\u8c03\u7528\u4e00\u6b21 Send() \u53d1\u9001\u8bf7\u6c42\u884c\u548c\u8bf7\u6c42\u5934&#xff0c;\u518d\u8c03\u7528\u4e00\u6b21\u53d1\u9001\u6587\u4ef6\u6b63\u6587\u3002\u8fd9\u6837\u5199\u6709\u52a9\u4e8e\u6784\u9020\u201c\u5934\u90e8\u5148\u5230\u3001\u6b63\u6587\u540e\u5230\u201d\u7684\u573a\u666f&#xff0c;\u4f46 TCP \u4ecd\u7136\u53ef\u80fd&#xff1a;<\/p>\n<ul>\n<li>\u628a\u4e24\u6b21\u53d1\u9001\u5408\u5e76\u540e\u4ea4\u7ed9\u670d\u52a1\u5668&#xff1b;<\/li>\n<li>\u628a\u5934\u90e8\u548c\u6b63\u6587\u62c6\u6210\u66f4\u591a\u6bb5&#xff1b;<\/li>\n<li>\u5148\u4ea4\u4ed8\u5b8c\u6574\u5934\u90e8&#xff0c;\u518d\u901a\u8fc7\u591a\u6b21\u53ef\u8bfb\u4e8b\u4ef6\u4ea4\u4ed8\u6b63\u6587\u3002<\/li>\n<\/ul>\n<p>\u670d\u52a1\u5668\u4e0d\u5e94\u8be5\u4f9d\u8d56\u5b9e\u9645\u5206\u5305\u65b9\u5f0f\u3002\u89e3\u6790\u5668\u8bfb\u5230 Content-Length \u540e&#xff0c;\u53ea\u9700\u8981\u8ba1\u7b97\u5f53\u524d\u6b63\u6587\u5df2\u7ecf\u6536\u5230\u591a\u5c11\u3001\u8fd8\u7f3a\u591a\u5c11&#xff1a;<\/p>\n<p>size_t remain <span class=\"token operator\">&#061;<\/span><br \/>\n    content_length <span class=\"token operator\">&#8211;<\/span> request_body<span class=\"token punctuation\">.<\/span><span class=\"token function\">size<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u5f53\u524d\u7f13\u51b2\u533a\u8db3\u591f\u65f6\u53ea\u6d88\u8d39 remain \u4e2a\u5b57\u8282&#xff1b;\u4e0d\u8db3\u65f6\u5148\u4fdd\u5b58\u5df2\u6709\u6b63\u6587\u5e76\u4fdd\u7559 BODY \u72b6\u6001&#xff0c;\u7b49\u5f85\u4e0b\u4e00\u6b21\u6570\u636e\u5230\u8fbe\u3002\u53ea\u6709\u7d2f\u8ba1\u6b63\u6587\u957f\u5ea6\u8fbe\u5230 Content-Length \u540e&#xff0c;\u624d\u8fdb\u5165 PUT \u8def\u7531&#xff1b;\u968f\u540e\u662f\u5426\u5199\u5165\u6587\u4ef6\u3001\u5199\u5230\u54ea\u91cc&#xff0c;\u7531\u5df2\u7ecf\u6ce8\u518c\u7684\u4e1a\u52a1 Handler \u51b3\u5b9a\u3002<\/p>\n<p>\u5982\u679c hello.txt \u8db3\u591f\u5927\u5e76\u4e14\u670d\u52a1\u7aef\u786e\u5b9e\u7ecf\u5386\u4e86\u591a\u6b21\u8bfb\u53d6&#xff0c;\u8fd9\u6bb5\u7a0b\u5e8f\u8fd8\u80fd\u8986\u76d6 BODY \u72b6\u6001\u8de8\u53ef\u8bfb\u4e8b\u4ef6\u7eed\u63a5\u3002\u4e24\u6b21\u5ba2\u6237\u7aef Send() \u672c\u8eab\u5e76\u4e0d\u80fd\u4fdd\u8bc1\u4e00\u5b9a\u53d1\u751f\u8fd9\u79cd\u5206\u6bb5\u3002<\/p>\n<h4>3. \u5982\u4f55\u5224\u65ad\u4e0a\u4f20\u771f\u6b63\u6210\u529f<\/h4>\n<p>\u53ea\u770b\u5230\u4e00\u6b21 HTTP \u6210\u529f\u54cd\u5e94\u8fd8\u4e0d\u591f\u3002\u5927\u8bf7\u6c42\u4f53\u4f20\u8f93\u81f3\u5c11\u8981\u68c0\u67e5&#xff1a;<\/p>\n<table>\n<tr>\u68c0\u67e5\u9879\u901a\u8fc7\u6807\u51c6<\/tr>\n<tbody>\n<tr>\n<td>HTTP \u54cd\u5e94<\/td>\n<td>\u8fd4\u56de\u9884\u671f\u7684\u6210\u529f\u72b6\u6001\u7801<\/td>\n<\/tr>\n<tr>\n<td>\u6587\u4ef6\u5b58\u5728\u6027<\/td>\n<td>\u670d\u52a1\u7aef\u76ee\u6807\u6587\u4ef6\u5df2\u7ecf\u751f\u6210<\/td>\n<\/tr>\n<tr>\n<td>\u6587\u4ef6\u5927\u5c0f<\/td>\n<td>\u6e90\u6587\u4ef6\u4e0e\u76ee\u6807\u6587\u4ef6\u5927\u5c0f\u5b8c\u5168\u76f8\u540c<\/td>\n<\/tr>\n<tr>\n<td>\u6587\u4ef6\u5185\u5bb9<\/td>\n<td>\u4e8c\u8fdb\u5236\u9010\u5b57\u8282\u4e00\u81f4\u6216 SHA-256 \u76f8\u540c<\/td>\n<\/tr>\n<tr>\n<td>\u8fde\u63a5\u72b6\u6001<\/td>\n<td>\u4e0a\u4f20\u5b8c\u6210\u540e\u8fde\u63a5\u4ecd\u80fd\u6309\u9884\u671f\u590d\u7528\u6216\u5173\u95ed<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u5047\u8bbe PUT Handler \u628a\u76ee\u6807\u6587\u4ef6\u4fdd\u5b58\u5230 .\/upload\/1234.txt&#xff0c;\u5728 Linux \u4e0b\u53ef\u4ee5\u8fdb\u4e00\u6b65\u6bd4\u8f83&#xff1a;<\/p>\n<p><span class=\"token function\">cmp<\/span> .\/hello.txt .\/upload\/1234.txt<br \/>\nsha256sum .\/hello.txt .\/upload\/1234.txt<\/p>\n<p>cmp \u7684\u9000\u51fa\u7801\u4e3a 0 \u4fbf\u80fd\u591f\u8bc1\u660e\u4e24\u4efd\u6587\u4ef6\u9010\u5b57\u8282\u4e00\u81f4&#xff1b;SHA-256 \u76f8\u540c\u5219\u66f4\u9002\u5408\u5728\u81ea\u52a8\u5316\u62a5\u544a\u4e2d\u8bb0\u5f55\u3002\u4e8c\u8005\u4efb\u9009\u4e00\u79cd\u5373\u53ef&#xff0c;\u5fc5\u8981\u65f6\u4e5f\u53ef\u4ee5\u540c\u65f6\u4fdd\u7559\u3002\u5b9e\u9645\u4fdd\u5b58\u76ee\u5f55\u4e0d\u540c\u65f6\u66ff\u6362\u6210 Handler \u4f7f\u7528\u7684\u8def\u5f84\u3002<\/p>\n<h4>4. \u5f53\u524d\u5b9e\u73b0\u8fd8\u4e0d\u662f\u771f\u6b63\u7684\u6d41\u5f0f\u4e0a\u4f20<\/h4>\n<p>\u5728\u6587\u4ef6\u8db3\u591f\u5927\u3001\u53d1\u9001\u5b8c\u6574\u4e14\u5df2\u6ce8\u518c\u4fdd\u5b58 Handler \u7684\u524d\u63d0\u4e0b&#xff0c;\u8fd9\u4e2a\u6d4b\u8bd5\u7528\u4e8e\u9a8c\u8bc1\u201c\u5927\u8bf7\u6c42\u4f53\u7684\u589e\u91cf\u63a5\u6536\u4e0e\u5b8c\u6574\u843d\u76d8\u201d\u3002\u4e0d\u8fc7&#xff0c;\u5f53\u524d\u5ba2\u6237\u7aef\u4f1a\u5148\u628a\u6574\u4e2a hello.txt \u8bfb\u5165 std::string&#xff0c;\u670d\u52a1\u5668\u4e5f\u4f1a\u628a\u5b8c\u6574\u8bf7\u6c42\u6b63\u6587\u4fdd\u5b58\u5728 HttpRequest::_body \u4e2d&#xff0c;\u7b49\u5168\u90e8\u63a5\u6536\u5b8c\u6210\u540e\u518d\u8fdb\u5165\u4e1a\u52a1\u5904\u7406\u3002<\/p>\n<p>\u56e0\u6b64&#xff0c;\u6587\u4ef6\u8d8a\u5927&#xff0c;\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u7684\u5185\u5b58\u5360\u7528\u4e5f\u4f1a\u8d8a\u9ad8\u3002\u66f4\u51c6\u786e\u5730\u8bf4&#xff0c;\u5f53\u524d\u7248\u672c\u5b9e\u73b0\u7684\u662f\u201c\u6574\u5305\u7f13\u5b58\u540e\u4e0a\u4f20\u201d&#xff0c;\u8fd8\u4e0d\u662f\u5185\u5b58\u5360\u7528\u53d7\u63a7\u7684\u6d41\u5f0f\u6587\u4ef6\u4e0a\u4f20\u3002<\/p>\n<p>\u540e\u7eed\u5982\u679c\u8981\u5904\u7406\u771f\u6b63\u7684\u5927\u6587\u4ef6&#xff0c;\u53ef\u4ee5\u7ee7\u7eed\u5b9e\u73b0&#xff1a;<\/p>\n<ul>\n<li>\u5206\u5757\u8bfb\u53d6\u6e90\u6587\u4ef6\u5e76\u5904\u7406\u90e8\u5206\u53d1\u9001&#xff1b;<\/li>\n<li>\u670d\u52a1\u7aef\u8fb9\u63a5\u6536\u8fb9\u5199\u5165\u4e34\u65f6\u6587\u4ef6&#xff1b;<\/li>\n<li>\u8bbe\u7f6e\u8bf7\u6c42\u6b63\u6587\u5927\u5c0f\u4e0a\u9650&#xff1b;<\/li>\n<li>\u63d0\u4f9b\u80cc\u538b&#xff0c;\u907f\u514d\u63a5\u6536\u901f\u5ea6\u8fdc\u5927\u4e8e\u843d\u76d8\u901f\u5ea6&#xff1b;<\/li>\n<li>\u5199\u5165\u5b8c\u6210\u5e76\u6821\u9a8c\u6210\u529f\u540e&#xff0c;\u518d\u539f\u5b50\u66ff\u6362\u76ee\u6807\u6587\u4ef6&#xff1b;<\/li>\n<li>\u5bf9\u5f02\u5e38\u65ad\u5f00\u4ea7\u751f\u7684\u4e0d\u5b8c\u6574\u4e34\u65f6\u6587\u4ef6\u8fdb\u884c\u6e05\u7406\u3002<\/li>\n<\/ul>\n<h3>\u4e5d\u3001\u8fd9\u516d\u7ec4\u6d4b\u8bd5\u5bf9\u5e94\u7684\u670d\u52a1\u5668\u8bbe\u8ba1<\/h3>\n<p>\u628a\u516d\u4e2a\u5ba2\u6237\u7aef\u653e\u5728\u4e00\u8d77\u770b&#xff0c;\u53ef\u4ee5\u53d1\u73b0\u5b83\u4eec\u5171\u540c\u9762\u5411\u56db\u7ec4\u6838\u5fc3\u673a\u5236\u3002<\/p>\n<h4>1. \u6bcf\u6761\u8fde\u63a5\u62e5\u6709\u72ec\u7acb\u7684 HTTP \u4e0a\u4e0b\u6587<\/h4>\n<p>\u4e0d\u540c\u5ba2\u6237\u7aef\u53ef\u80fd\u5206\u522b\u505c\u7559\u5728\u8bf7\u6c42\u884c\u3001\u8bf7\u6c42\u5934\u3001\u6b63\u6587\u6216\u89e3\u6790\u5b8c\u6210\u72b6\u6001\u3002\u670d\u52a1\u5668\u4e0d\u80fd\u8ba9\u6240\u6709\u8fde\u63a5\u5171\u7528\u540c\u4e00\u4e2a\u89e3\u6790\u5668&#xff0c;\u800c\u5e94\u8be5\u5728\u6bcf\u6761 Connection \u4e2d\u4fdd\u5b58\u72ec\u7acb\u7684 HttpContext\u3002<\/p>\n<p>Connection A -&gt; HttpContext A -&gt; \u6b63\u5728\u7b49\u5f85\u6b63\u6587<br \/>\nConnection B -&gt; HttpContext B -&gt; \u6b63\u5728\u89e3\u6790\u8bf7\u6c42\u5934<br \/>\nConnection C -&gt; HttpContext C -&gt; \u5df2\u5f97\u5230\u5b8c\u6574\u8bf7\u6c42<\/p>\n<p>\u8fd9\u8ba9\u534a\u5305\u72b6\u6001\u80fd\u591f\u8de8\u4e8b\u4ef6\u4fdd\u5b58&#xff0c;\u4e5f\u907f\u514d\u4e0d\u540c\u8fde\u63a5\u4e4b\u95f4\u4e92\u76f8\u6c61\u67d3\u3002<\/p>\n<h4>2. Buffer \u4e0e\u72b6\u6001\u673a\u5171\u540c\u786e\u5b9a\u8bf7\u6c42\u8fb9\u754c<\/h4>\n<p>Buffer \u4fdd\u5b58\u5c1a\u672a\u6d88\u8d39\u7684\u7f51\u7edc\u5b57\u8282&#xff0c;HttpContext \u8bb0\u5f55\u5f53\u524d\u89e3\u6790\u9636\u6bb5&#xff1a;<\/p>\n<p>RECV_HTTP_LINE<br \/>\n       \u2193<br \/>\nRECV_HTTP_HEAD<br \/>\n       \u2193<br \/>\nRECV_HTTP_BODY<br \/>\n       \u2193<br \/>\nRECV_HTTP_OVER<\/p>\n<p>\u6570\u636e\u4e0d\u591f\u65f6\u6682\u505c&#xff0c;\u6570\u636e\u5230\u9f50\u540e\u7ee7\u7eed&#xff1b;\u5f53\u524d\u8bf7\u6c42\u5b8c\u6210\u540e\u53ea\u79fb\u52a8\u5bf9\u5e94\u957f\u5ea6&#xff0c;\u5269\u4f59\u5b57\u8282\u7559\u7ed9\u4e0b\u4e00\u6761\u8bf7\u6c42\u3002\u8fd9\u540c\u65f6\u652f\u6491\u4e86 client3 \u7684\u534a\u5305\u7b49\u5f85\u3001client5 \u7684\u591a\u8bf7\u6c42\u89e3\u6790&#xff0c;\u4ee5\u53ca\u6587\u4ef6\u8db3\u591f\u5927\u65f6 client6 \u7684\u5927\u6b63\u6587\u5206\u6bb5\u63a5\u6536\u3002<\/p>\n<h4>3. \u65f6\u95f4\u8f6e\u8d1f\u8d23\u8fde\u63a5\u6d3b\u8dc3\u5ea6\u7ba1\u7406<\/h4>\n<p>\u53ea\u6709\u542f\u7528\u975e\u6d3b\u8dc3\u8fde\u63a5\u56de\u6536\u540e&#xff0c;\u8fde\u63a5\u5efa\u7acb\u65f6\u624d\u4f1a\u6dfb\u52a0\u5bf9\u5e94\u5b9a\u65f6\u4efb\u52a1\u3002Channel \u4e8b\u4ef6\u5904\u7406\u5b8c\u6210\u540e\u5237\u65b0\u4efb\u52a1&#xff1b;\u975e\u8d85\u65f6\u8def\u5f84\u91ca\u653e\u8fde\u63a5\u65f6&#xff0c;\u5982\u679c\u5b9a\u65f6\u5668\u4ecd\u7136\u5b58\u5728\u5c31\u5c06\u5176\u53d6\u6d88&#xff1b;\u8d85\u65f6\u8def\u5f84\u5219\u7531\u5230\u671f\u4efb\u52a1\u89e6\u53d1\u91ca\u653e\u5e76\u6e05\u7406\u81ea\u8eab\u7d22\u5f15&#xff1a;<\/p>\n<p>\u8fde\u63a5\u5efa\u7acb -&gt; TimerAdd<br \/>\nChannel\u4e8b\u4ef6\u5904\u7406\u5b8c\u6210 -&gt; TimerRefresh<br \/>\n\u5176\u4ed6\u8def\u5f84\u91ca\u653e\u4e14\u4efb\u52a1\u4ecd\u5b58\u5728 -&gt; TimerCancel<br \/>\n\u957f\u671f\u7a7a\u95f2 -&gt; \u8d85\u65f6\u56de\u8c03<\/p>\n<p>\u4ece\u9ed1\u76d2\u89d2\u5ea6&#xff0c;client1 \u548c client2 \u53ef\u4ee5\u5206\u522b\u95f4\u63a5\u89c2\u5bdf\u201c\u6301\u7eed\u6d3b\u52a8\u65f6\u8fde\u63a5\u4ecd\u5b58\u6d3b\u201d\u548c\u201c\u957f\u671f\u7a7a\u95f2\u540e\u8fde\u63a5\u88ab\u5173\u95ed\u201d\u3002\u82e5\u8981\u786e\u8ba4\u5185\u90e8\u786e\u5b9e\u7ecf\u8fc7 TimerRefresh \u548c\u5230\u671f\u4efb\u52a1\u8def\u5f84&#xff0c;\u8fd8\u9700\u8981\u670d\u52a1\u7aef\u8bb0\u5f55\u5b9a\u65f6\u5668\u64cd\u4f5c\u4e0e\u8fde\u63a5\u5173\u95ed\u539f\u56e0\u3002<\/p>\n<h4>4. \u771f\u6b63\u91ca\u653e\u53d1\u751f\u5728\u5b89\u5168\u65f6\u673a<\/h4>\n<p>\u8d85\u65f6\u3001\u8bfb\u5199\u9519\u8bef\u3001\u5bf9\u7aef\u5173\u95ed\u548c\u4e1a\u52a1\u4e3b\u52a8\u5173\u95ed\u90fd\u53ef\u80fd\u8d70\u5411\u8fde\u63a5\u91ca\u653e\u3002\u771f\u6b63\u56f0\u96be\u7684\u4e0d\u662f\u8c03\u7528 close()&#xff0c;\u800c\u662f\u4fdd\u8bc1\u6b64\u65f6\u6ca1\u6709\u5176\u4ed6\u4e8b\u4ef6\u6216\u56de\u8c03\u4ecd\u7136\u5f15\u7528\u8fd9\u6761\u8fde\u63a5\u3002<\/p>\n<p>\u628a\u91ca\u653e\u64cd\u4f5c\u653e\u5165\u4e8b\u4ef6\u5faa\u73af\u4efb\u52a1\u961f\u5217&#xff0c;\u7b49\u5f53\u524d\u6d3b\u8dc3\u4e8b\u4ef6\u6279\u6b21\u5904\u7406\u5b8c\u6210\u540e\u6267\u884c&#xff0c;\u53ef\u4ee5\u907f\u514d client4 \u6240\u5173\u6ce8\u7684\u201c\u6d3b\u8dc3\u6570\u7ec4\u4ecd\u6301\u6709\u88f8\u6307\u9488\u65f6\u7acb\u5373\u9500\u6bc1\u8fde\u63a5\u201d\u8fd9\u4e00\u6761\u60ac\u7a7a\u8bbf\u95ee\u8def\u5f84\u3002\u5176\u4ed6\u5f02\u6b65\u751f\u547d\u5468\u671f\u95ee\u9898\u4ecd\u9700\u8981\u7ee7\u7eed\u4f9d\u9760\u660e\u786e\u7684\u5bf9\u8c61\u6240\u6709\u6743\u548c\u5e42\u7b49\u91ca\u653e\u5904\u7406\u3002<\/p>\n<h3>\u5341\u3001\u6d4b\u8bd5\u5ba2\u6237\u7aef\u672c\u8eab\u8fd8\u53ef\u4ee5\u600e\u6837\u6539\u8fdb<\/h3>\n<p>\u8fd9 6 \u4e2a\u7a0b\u5e8f\u5f88\u9002\u5408\u4eba\u5de5\u5236\u9020\u573a\u666f&#xff0c;\u4f46\u5982\u679c\u60f3\u628a\u5b83\u4eec\u53d8\u6210\u53ef\u4ee5\u957f\u671f\u56de\u5f52\u7684\u81ea\u52a8\u5316\u6d4b\u8bd5&#xff0c;\u8fd8\u9700\u8981\u8865\u9f50\u51e0\u4e2a\u7ec6\u8282\u3002<\/p>\n<h4>1. \u4e0d\u8981\u628a\u6709\u526f\u4f5c\u7528\u7684\u64cd\u4f5c\u653e\u8fdb assert<\/h4>\n<p>\u5f53\u524d\u4ee3\u7801\u7ecf\u5e38\u5199&#xff1a;<\/p>\n<p><span class=\"token function\">assert<\/span><span class=\"token punctuation\">(<\/span>cli_sock<span class=\"token punctuation\">.<\/span><span class=\"token function\">Send<\/span><span class=\"token punctuation\">(<\/span>req<span class=\"token punctuation\">.<\/span><span class=\"token function\">c_str<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> req<span class=\"token punctuation\">.<\/span><span class=\"token function\">size<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">!&#061;<\/span> <span class=\"token operator\">&#8211;<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">assert<\/span><span class=\"token punctuation\">(<\/span>cli_sock<span class=\"token punctuation\">.<\/span><span class=\"token function\">Recv<\/span><span class=\"token punctuation\">(<\/span>buf<span class=\"token punctuation\">,<\/span> <span class=\"token number\">1023<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u8fd9\u91cc\u6709\u4e24\u4e2a\u95ee\u9898\u3002<\/p>\n<p>\u7b2c\u4e00&#xff0c;\u5b9a\u4e49 NDEBUG \u540e&#xff0c;assert \u8868\u8fbe\u5f0f\u4f1a\u88ab\u6574\u4e2a\u79fb\u9664&#xff0c;\u8fde Send() \u548c Recv() \u90fd\u4e0d\u4f1a\u6267\u884c\u3002<\/p>\n<p>\u7b2c\u4e8c&#xff0c;\u5982\u679c Recv() \u8fd4\u56de -1&#xff0c;\u5b83\u5728\u5e03\u5c14\u5224\u65ad\u4e2d\u4ecd\u7136\u662f\u771f&#xff0c;\u65ad\u8a00\u53cd\u800c\u4e0d\u4f1a\u5931\u8d25\u3002\u66f4\u7a33\u59a5\u7684\u5199\u6cd5\u662f\u5148\u6267\u884c&#xff0c;\u518d\u660e\u786e\u5224\u65ad\u8fd4\u56de\u503c&#xff1a;<\/p>\n<p>ssize_t n <span class=\"token operator\">&#061;<\/span> cli_sock<span class=\"token punctuation\">.<\/span><span class=\"token function\">Recv<\/span><span class=\"token punctuation\">(<\/span>buf<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">sizeof<\/span><span class=\"token punctuation\">(<\/span>buf<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#8211;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>n <span class=\"token operator\">&lt;&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token function\">ERR_LOG<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;connection closed or recv failed&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> <span class=\"token operator\">&#8211;<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\nbuf<span class=\"token punctuation\">[<\/span>n<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token char\">&#039;\\\\0&#039;<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<h4>2. \u4e00\u6b21 Send() \u4e0d\u4fdd\u8bc1\u53d1\u9001\u5b8c\u6574<\/h4>\n<p>\u5f53\u524d\u6d4b\u8bd5\u53ea\u5224\u65ad\u8fd4\u56de\u503c\u4e0d\u7b49\u4e8e -1&#xff0c;\u5374\u6ca1\u6709\u786e\u8ba4\u8fd4\u56de\u503c\u662f\u5426\u7b49\u4e8e\u8bf7\u6c42\u603b\u957f\u5ea6\u3002\u5c0f\u8bf7\u6c42\u5728\u672c\u673a\u6d4b\u8bd5\u4e2d\u901a\u5e38\u80fd\u591f\u4e00\u6b21\u53d1\u5b8c&#xff0c;\u4f46\u5927\u6587\u4ef6\u66f4\u5bb9\u6613\u51fa\u73b0\u90e8\u5206\u53d1\u9001\u3002<\/p>\n<p>\u963b\u585e\u6d4b\u8bd5\u5ba2\u6237\u7aef\u53ef\u4ee5\u5b9e\u73b0\u4e00\u4e2a SendAll()&#xff1a;<\/p>\n<p><span class=\"token keyword\">bool<\/span> <span class=\"token function\">SendAll<\/span><span class=\"token punctuation\">(<\/span>Socket <span class=\"token operator\">*<\/span>sock<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">const<\/span> <span class=\"token keyword\">char<\/span> <span class=\"token operator\">*<\/span>data<span class=\"token punctuation\">,<\/span> size_t len<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    size_t offset <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span>offset <span class=\"token operator\">&lt;<\/span> len<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        ssize_t n <span class=\"token operator\">&#061;<\/span> sock<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">Send<\/span><span class=\"token punctuation\">(<\/span>data <span class=\"token operator\">&#043;<\/span> offset<span class=\"token punctuation\">,<\/span> len <span class=\"token operator\">&#8211;<\/span> offset<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>n <span class=\"token operator\">&lt;&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u7531\u4e0a\u5c42\u8bb0\u5f55\u9519\u8bef\u6216\u6309\u660e\u786e\u7b56\u7565\u91cd\u8bd5<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        offset <span class=\"token operator\">&#043;&#061;<\/span> <span class=\"token generic-function\"><span class=\"token function\">static_cast<\/span><span class=\"token generic class-name\"><span class=\"token operator\">&lt;<\/span>size_t<span class=\"token operator\">&gt;<\/span><\/span><\/span><span class=\"token punctuation\">(<\/span>n<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">true<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u5f53\u524d Socket \u5c01\u88c5\u4f1a\u628a EINTR\u3001EAGAIN \u7b49\u60c5\u51b5\u538b\u7f29\u6210\u76f8\u8fd1\u7684\u8fd4\u56de\u503c&#xff0c;\u81ea\u52a8\u5316\u6d4b\u8bd5\u6700\u597d\u8fdb\u4e00\u6b65\u533a\u5206\u8fd9\u4e9b\u72b6\u6001\u3002\u975e\u963b\u585e socket \u9047\u5230 EAGAIN \u65f6\u4e0d\u5e94\u5fd9\u7b49&#xff0c;\u800c\u8981\u7b49\u5f85\u53ef\u5199\u4e8b\u4ef6&#xff1b;\u6240\u6709\u91cd\u8bd5\u8fd8\u5e94\u8bbe\u7f6e\u603b\u622a\u6b62\u65f6\u95f4&#xff0c;\u907f\u514d\u6d4b\u8bd5\u6c38\u4e45\u5361\u4f4f\u3002<\/p>\n<h4>3. \u4e00\u6b21 Recv() \u4e5f\u4e0d\u4ee3\u8868\u4e00\u6761\u5b8c\u6574\u54cd\u5e94<\/h4>\n<p>\u8fd9 6 \u4e2a\u5ba2\u6237\u7aef\u57fa\u672c\u90fd\u628a\u4e00\u6b21 Recv() \u5f53\u6210\u201c\u4e00\u6b21\u54cd\u5e94\u5df2\u7ecf\u63a5\u6536\u5b8c\u6210\u201d&#xff0c;\u4f46\u8fd9\u53ea\u80fd\u7528\u4e8e\u4eba\u5de5\u89c2\u5bdf&#xff0c;\u4e0d\u80fd\u6210\u4e3a\u5b8c\u6574\u54cd\u5e94\u7684\u4e25\u683c\u8bc1\u636e\u3002client3.cpp \u548c client5.cpp \u8fd8\u53ef\u80fd\u6536\u5230\u591a\u6761\u54cd\u5e94&#xff0c;\u95ee\u9898\u66f4\u52a0\u660e\u663e\u3002\u771f\u6b63\u81ea\u52a8\u5316\u65f6&#xff0c;\u5ba2\u6237\u7aef\u540c\u6837\u9700\u8981\u4e00\u4e2a\u54cd\u5e94\u72b6\u6001\u673a&#xff1a;<\/p>\n<p>\u8bfb\u53d6\u72b6\u6001\u884c<br \/>\n   \u2193<br \/>\n\u8bfb\u53d6\u5168\u90e8\u54cd\u5e94\u5934<br \/>\n   \u2193<br \/>\n\u6839\u636e Content-Length \u8bfb\u53d6\u6b63\u6587<br \/>\n   \u2193<br \/>\n\u5f97\u5230\u4e00\u6761\u5b8c\u6574\u54cd\u5e94<br \/>\n   \u2193<br \/>\n\u91cd\u590d\u76f4\u5230\u5f97\u52303\u6761<\/p>\n<p>\u5bf9\u4e8e client5.cpp&#xff0c;\u53ea\u6709\u660e\u786e\u89e3\u6790\u51fa\u4e09\u6761\u5b8c\u6574\u54cd\u5e94&#xff0c;\u624d\u80fd\u8ba9\u6d4b\u8bd5\u81ea\u52a8\u5224\u65ad\u6210\u529f\u6216\u5931\u8d25\u3002\u5bf9\u4e8e\u672c\u9879\u76ee\u4e2d\u7684\u666e\u901a\u54cd\u5e94&#xff0c;\u8fd8\u5e94\u5148\u4fdd\u8bc1\u670d\u52a1\u7aef\u4e3a\u96f6\u957f\u5ea6\u6b63\u6587\u4e5f\u53d1\u9001\u660e\u786e\u7684 Content-Length: 0&#xff1b;\u5982\u679c\u8981\u5b9e\u73b0\u901a\u7528 HTTP \u54cd\u5e94\u89e3\u6790\u5668&#xff0c;\u5219\u8fd8\u8981\u5904\u7406 HEAD\u30011xx\u3001204\u3001304 \u4ee5\u53ca\u901a\u8fc7\u8fde\u63a5\u5173\u95ed\u5b9a\u754c\u7b49\u7279\u6b8a\u60c5\u51b5\u3002<\/p>\n<h4>4. \u7a7a\u95f2\u5173\u95ed\u6d4b\u8bd5\u8981\u5904\u7406 SIGPIPE<\/h4>\n<p>client2.cpp \u4f1a\u5728\u670d\u52a1\u5668\u5df2\u7ecf\u5173\u95ed\u8fde\u63a5\u540e\u518d\u6b21\u53d1\u9001&#xff0c;client3.cpp \u5728\u6536\u5230 400 \u5e76\u65ad\u5f00\u540e\u4e5f\u53ef\u80fd\u8fdb\u5165\u4e0b\u4e00\u8f6e\u3002\u5728 Linux \u4e2d&#xff0c;\u5bf9\u5df2\u5173\u95ed\u8fde\u63a5\u7ee7\u7eed\u5199\u5165\u53ef\u80fd\u89e6\u53d1 SIGPIPE\u3002\u6240\u6709\u5faa\u73af\u53d1\u9001\u7684\u6d4b\u8bd5\u7a0b\u5e8f\u90fd\u53ef\u4ee5\u7edf\u4e00\u5ffd\u7565\u8be5\u4fe1\u53f7&#xff0c;\u6216\u8005\u5728\u53d1\u9001\u65f6\u4f7f\u7528 MSG_NOSIGNAL&#xff0c;\u518d\u901a\u8fc7\u8fd4\u56de\u503c\u5224\u65ad EPIPE \u6216\u8fde\u63a5\u91cd\u7f6e\u3002<\/p>\n<h4>5. \u5927\u6587\u4ef6\u6d4b\u8bd5\u8981\u81ea\u52a8\u6bd4\u8f83\u7ed3\u679c<\/h4>\n<p>client6.cpp \u5f53\u524d\u5ffd\u7565\u4e86 ReadFile() \u7684\u8fd4\u56de\u503c\u3002\u5982\u679c\u6e90\u6587\u4ef6\u4e0d\u5b58\u5728&#xff0c;\u6d4b\u8bd5\u53ef\u80fd\u9000\u5316\u6210\u4e00\u6b21\u7a7a\u6b63\u6587 PUT\u3002<\/p>\n<p>\u81f3\u5c11\u5e94\u8be5\u68c0\u67e5&#xff1a;<\/p>\n<p><span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">!<\/span><span class=\"token class-name\">Util<\/span><span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">ReadFile<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;.\/hello.txt&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>body<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token function\">ERR_LOG<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;read source file failed&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> <span class=\"token operator\">&#8211;<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u4e0a\u4f20\u7ed3\u675f\u540e&#xff0c;\u8fd8\u5e94\u81ea\u52a8\u6bd4\u8f83\u6e90\u6587\u4ef6\u548c\u76ee\u6807\u6587\u4ef6\u7684\u5927\u5c0f\u4e0e\u54c8\u5e0c&#xff0c;\u800c\u4e0d\u53ea\u662f\u4eba\u5de5\u89c2\u5bdf\u670d\u52a1\u7aef\u65e5\u5fd7\u3002<\/p>\n<h4>6. \u7ed9\u538b\u529b\u6d4b\u8bd5\u8bbe\u7f6e\u7ed3\u675f\u6761\u4ef6<\/h4>\n<p>\u591a\u4e2a\u5ba2\u6237\u7aef\u4f7f\u7528\u65e0\u9650\u5faa\u73af&#xff0c;\u9002\u5408\u6301\u7eed\u89c2\u5bdf&#xff0c;\u4f46\u4e0d\u65b9\u4fbf\u81ea\u52a8\u56de\u5f52\u3002\u53ef\u4ee5\u6539\u6210\u56fa\u5b9a\u8bf7\u6c42\u6b21\u6570\u6216\u56fa\u5b9a\u8fd0\u884c\u65f6\u95f4&#xff0c;\u5e76\u7edf\u8ba1&#xff1a;<\/p>\n<ul>\n<li>\u6210\u529f\u8bf7\u6c42\u6570&#xff1b;<\/li>\n<li>\u5931\u8d25\u8bf7\u6c42\u6570&#xff1b;<\/li>\n<li>\u5e73\u5747\u4e0e\u6700\u5927\u5ef6\u8fdf&#xff1b;<\/li>\n<li>\u8fde\u63a5\u5173\u95ed\u539f\u56e0&#xff1b;<\/li>\n<li>\u6d4b\u8bd5\u7ed3\u675f\u540e\u7684\u5269\u4f59\u8fde\u63a5\u6570\u548c fd \u6570\u91cf\u3002<\/li>\n<\/ul>\n<p>\u8fd9\u6837&#xff0c;\u6d4b\u8bd5\u5c31\u80fd\u4ece\u201c\u8089\u773c\u770b\u65e5\u5fd7\u201d\u5347\u7ea7\u4e3a\u201c\u7a0b\u5e8f\u81ea\u52a8\u7ed9\u51fa\u7ed3\u8bba\u201d\u3002<\/p>\n<h4>7. \u68c0\u67e5\u5efa\u8fde\u7ed3\u679c\u5e76\u8bbe\u7f6e\u6d4b\u8bd5\u622a\u6b62\u65f6\u95f4<\/h4>\n<p>\u5f53\u524d\u5ba2\u6237\u7aef\u6ca1\u6709\u68c0\u67e5 CreateClient() \u662f\u5426\u6210\u529f\u3002\u5982\u679c\u670d\u52a1\u5668\u5c1a\u672a\u542f\u52a8\u6216\u7aef\u53e3\u914d\u7f6e\u9519\u8bef&#xff0c;\u540e\u7eed\u6536\u53d1\u4f1a\u63a9\u76d6\u771f\u6b63\u7684\u5931\u8d25\u539f\u56e0\u3002\u5efa\u8fde\u3001\u53d1\u9001\u3001\u63a5\u6536\u548c\u7b49\u5f85\u8d85\u65f6\u90fd\u5e94\u8be5\u6709\u72ec\u7acb\u9519\u8bef\u4fe1\u606f\u3002<\/p>\n<p>\u963b\u585e\u5f0f Recv() \u8fd8\u9700\u8981\u8bbe\u7f6e\u63a5\u6536\u8d85\u65f6&#xff0c;\u6216\u8005\u7531 poll\/epoll \u914d\u5408\u7edd\u5bf9\u622a\u6b62\u65f6\u95f4\u7b49\u5f85\u3002\u5426\u5219\u670d\u52a1\u5668\u6ca1\u6709\u8fd4\u56de\u54cd\u5e94\u65f6&#xff0c;\u6d4b\u8bd5\u4f1a\u6c38\u4e45\u963b\u585e&#xff0c;\u65e2\u65e0\u6cd5\u5931\u8d25\u9000\u51fa&#xff0c;\u4e5f\u65e0\u6cd5\u7ee7\u7eed\u6267\u884c\u6e05\u7406\u903b\u8f91\u3002<\/p>\n<h3>\u5341\u4e00\u3001\u8fd9\u8f6e\u6d4b\u8bd5\u5e26\u6765\u7684\u8fdb\u4e00\u6b65\u601d\u8003<\/h3>\n<h4>1. \u7a7a\u95f2\u8d85\u65f6\u4e0d\u80fd\u66ff\u4ee3\u534f\u8bae\u9636\u6bb5\u8d85\u65f6<\/h4>\n<p>\u5f53\u524d\u8fde\u63a5\u53ea\u8981\u4e0d\u65ad\u4ea7\u751f\u4e8b\u4ef6&#xff0c;\u5c31\u4f1a\u6301\u7eed\u5237\u65b0\u7a7a\u95f2\u5b9a\u65f6\u5668\u3002\u5982\u679c\u6076\u610f\u5ba2\u6237\u7aef\u6bcf\u9694\u51e0\u79d2\u53ea\u53d1\u9001\u4e00\u4e2a\u5b57\u8282&#xff0c;\u5b83\u53ef\u80fd\u957f\u671f\u5360\u7528\u8fde\u63a5&#xff0c;\u5374\u59cb\u7ec8\u4e0d\u5b8c\u6210\u8bf7\u6c42\u3002<\/p>\n<p>\u56e0\u6b64&#xff0c;\u5de5\u7a0b\u7ea7\u670d\u52a1\u5668\u901a\u5e38\u8fd8\u4f1a\u533a\u5206&#xff1a;<\/p>\n<ul>\n<li>\u5efa\u8fde\u540e\u7684\u9996\u5b57\u8282\u8d85\u65f6&#xff1b;<\/li>\n<li>\u8bf7\u6c42\u5934\u5b8c\u6574\u63a5\u6536\u8d85\u65f6&#xff1b;<\/li>\n<li>\u8bf7\u6c42\u6b63\u6587\u63a5\u6536\u8d85\u65f6&#xff1b;<\/li>\n<li>Keep-Alive \u7a7a\u95f2\u8d85\u65f6&#xff1b;<\/li>\n<li>\u4e1a\u52a1\u5904\u7406\u8d85\u65f6\u3002<\/li>\n<\/ul>\n<p>\u4e0d\u540c\u9636\u6bb5\u4f7f\u7528\u4e0d\u540c\u7684\u622a\u6b62\u65f6\u95f4&#xff0c;\u624d\u80fd\u66f4\u597d\u5730\u9632\u5fa1\u6162\u901f\u8bf7\u6c42\u3002<\/p>\n<h4>2. \u89e3\u6790\u9519\u8bef\u540e\u5e94\u5c3d\u5feb\u5173\u95ed\u5931\u53bb\u8fb9\u754c\u7684\u8fde\u63a5<\/h4>\n<p>\u50cf client3.cpp \u8fd9\u6837\u7684\u8bf7\u6c42\u4e00\u65e6\u53d1\u751f\u6d88\u606f\u8fb9\u754c\u9519\u4f4d&#xff0c;\u7ee7\u7eed\u590d\u7528\u8fde\u63a5\u901a\u5e38\u6ca1\u6709\u610f\u4e49\u3002\u53d1\u9001\u9519\u8bef\u54cd\u5e94\u3001\u4e22\u5f03\u5269\u4f59\u8f93\u5165\u5e76\u5173\u95ed\u8fde\u63a5&#xff0c;\u6bd4\u5c1d\u8bd5\u4ece\u4efb\u610f\u4f4d\u7f6e\u91cd\u65b0\u5bfb\u627e\u4e0b\u4e00\u6761\u8bf7\u6c42\u66f4\u5b89\u5168\u3002<\/p>\n<h4>3. \u5ef6\u8fdf\u91ca\u653e\u89c4\u907f\u5f53\u524d\u6279\u6b21\u60ac\u7a7a&#xff0c;\u5f02\u6b65\u4e1a\u52a1\u4fdd\u8bc1\u541e\u5410<\/h4>\n<p>\u628a\u8fde\u63a5\u9500\u6bc1\u5ef6\u540e\u5230\u5f53\u524d\u4e8b\u4ef6\u6279\u6b21\u4e4b\u540e&#xff0c;\u53ef\u4ee5\u907f\u514d\u6d3b\u8dc3\u6570\u7ec4\u4ecd\u6301\u6709 Channel * \u65f6\u5bf9\u8c61\u5df2\u88ab\u9500\u6bc1\u8fd9\u4e00\u7c7b use-after-free&#xff1b;\u5b83\u5e76\u4e0d\u7b49\u4e8e\u6240\u6709\u751f\u547d\u5468\u671f\u95ee\u9898\u90fd\u5df2\u89e3\u51b3\u3002\u4e0e\u6b64\u540c\u65f6&#xff0c;\u5982\u679c\u4e1a\u52a1\u56de\u8c03\u957f\u671f\u963b\u585e IO \u7ebf\u7a0b&#xff0c;\u5176\u4ed6\u8fde\u63a5\u7684\u5ef6\u8fdf\u548c\u8d85\u65f6\u5224\u65ad\u4ecd\u7136\u4f1a\u53d7\u5230\u5f71\u54cd\u3002<\/p>\n<p>\u56e0\u6b64&#xff0c;\u751f\u547d\u5468\u671f\u5b89\u5168\u548c\u4e1a\u52a1\u8c03\u5ea6\u662f\u4e24\u4e2a\u4e0d\u540c\u95ee\u9898&#xff0c;\u9700\u8981\u5206\u522b\u89e3\u51b3\u3002<\/p>\n<h4>4. \u5927\u8bf7\u6c42\u4f53\u5fc5\u987b\u8bbe\u7f6e\u4e0a\u9650<\/h4>\n<p>\u53ea\u8981\u670d\u52a1\u5668\u6309\u7167\u5ba2\u6237\u7aef\u7ed9\u51fa\u7684 Content-Length \u4e0d\u53d7\u9650\u5236\u5730\u6269\u5bb9&#xff0c;\u5c31\u53ef\u80fd\u88ab\u6781\u5927\u7684\u8bf7\u6c42\u4f53\u8017\u5c3d\u5185\u5b58\u3002\u5373\u4f7f\u6682\u65f6\u4e0d\u5b9e\u73b0\u6d41\u5f0f\u4e0a\u4f20&#xff0c;\u4e5f\u5e94\u8be5\u5148\u8bbe\u7f6e\u660e\u786e\u7684\u6700\u5927\u6b63\u6587\u957f\u5ea6&#xff0c;\u5e76\u5bf9\u8d85\u9650\u8bf7\u6c42\u8fd4\u56de 413 Payload Too Large\u3002<\/p>\n<h3>\u603b\u7ed3<\/h3>\n<p>\u8fd9 6 \u4e2a\u5ba2\u6237\u7aef\u7a0b\u5e8f\u5e76\u4e0d\u590d\u6742&#xff0c;\u4f46\u5b83\u4eec\u628a\u6d4b\u8bd5\u8303\u56f4\u4ece\u201c\u4e00\u6b21\u8bf7\u6c42\u80fd\u5426\u8fd4\u56de Hello 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