{"id":37306,"date":"2025-05-15T11:46:07","date_gmt":"2025-05-15T03:46:07","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/37306.html"},"modified":"2025-05-15T11:46:07","modified_gmt":"2025-05-15T03:46:07","slug":"%e5%a4%9a%e7%ba%bf%e7%a8%8b%e7%bd%91%e7%bb%9c%e7%bc%96%e7%a8%8b%ef%bc%9a%e7%b2%98%e5%8c%85%e9%97%ae%e9%a2%98%e3%80%81%e5%a4%9a%e7%ba%bf%e7%a8%8b-%e5%a4%9a%e8%bf%9b%e7%a8%8b%e6%9c%8d%e5%8a%a1%e5%99%a8","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/37306.html","title":{"rendered":"\u591a\u7ebf\u7a0b\u7f51\u7edc\u7f16\u7a0b\uff1a\u7c98\u5305\u95ee\u9898\u3001\u591a\u7ebf\u7a0b\/\u591a\u8fdb\u7a0b\u670d\u52a1\u5668\u5b9e\u6218\u4e0e\u5e38\u89c1\u95ee\u9898\u89e3\u6790"},"content":{"rendered":"<hr \/>\n<h2>\u591a\u7ebf\u7a0b\u7f51\u7edc\u7f16\u7a0b&#xff1a;\u7c98\u5305\u95ee\u9898\u3001\u591a\u7ebf\u7a0b\/\u591a\u8fdb\u7a0b\u670d\u52a1\u5668\u5b9e\u6218\u4e0e\u5e38\u89c1\u95ee\u9898\u89e3\u6790<\/h2>\n<h3>\u4e00\u3001TCP\u7c98\u5305\u95ee\u9898&#xff1a;\u6210\u56e0\u3001\u5f71\u54cd\u4e0e\u89e3\u51b3\u65b9\u6848<\/h3>\n<h4>1. \u7c98\u5305\u95ee\u9898\u672c\u8d28<\/h4>\n<p>TCP\u662f\u9762\u5411\u6d41\u7684\u534f\u8bae&#xff0c;\u6570\u636e\u4f20\u8f93\u65f6\u6ca1\u6709\u660e\u786e\u7684\u6d88\u606f\u8fb9\u754c&#xff0c;\u5bfc\u81f4\u591a\u4e2a\u6d88\u606f\u53ef\u80fd\u88ab\u5408\u5e76&#xff08;\u7c98\u5305&#xff09;\u6216\u5206\u5272&#xff08;\u62c6\u5305&#xff09;\u3002 \u6838\u5fc3\u77db\u76fe&#xff1a;\u5e94\u7528\u5c42\u201c\u6d88\u606f\u201d\u4e0eTCP\u5c42\u201c\u5b57\u8282\u6d41\u201d\u7684\u8bed\u4e49\u5dee\u5f02\u3002 \u5178\u578b\u573a\u666f&#xff1a;\u5ba2\u6237\u7aef\u591a\u6b21\u53d1\u9001\u5c0f\u6570\u636e&#xff08;\u5982\u201cHello\u201d&#043;\u201cWorld\u201d&#xff09;&#xff0c;TCP\u53ef\u80fd\u5408\u5e76\u4e3a\u201cHelloWorld\u201d\u53d1\u9001&#xff0c;\u63a5\u6536\u7aef\u65e0\u6cd5\u533a\u5206\u6d88\u606f\u8fb9\u754c\u3002<\/p>\n<h4>2. \u7c98\u5305\u6210\u56e0\u5206\u6790<\/h4>\n<h5>&#xff08;1&#xff09;\u53d1\u9001\u7aef\u4f18\u5316&#xff08;Nagle\u7b97\u6cd5&#xff09;<\/h5>\n<ul>\n<li>TCP\u4f1a\u5c06\u5c0f\u6570\u636e\u5305\u5408\u5e76\u53d1\u9001&#xff08;Nagle\u7b97\u6cd5\u9ed8\u8ba4\u5f00\u542f&#xff09;&#xff0c;\u51cf\u5c11\u7f51\u7edc\u62a5\u6587\u6570\u91cf\u3002<\/li>\n<li>\u793a\u4f8b&#xff1a;\u8fde\u7eed\u8c03\u7528send(&#034;A&#034;)\u548csend(&#034;B&#034;)&#xff0c;\u53ef\u80fd\u5408\u5e76\u4e3a\u4e00\u4e2a\u5305\u201cAB\u201d\u3002<\/li>\n<\/ul>\n<h5>&#xff08;2&#xff09;\u63a5\u6536\u7aef\u7f13\u51b2\u533a\u672a\u53ca\u65f6\u8bfb\u53d6<\/h5>\n<ul>\n<li>\u63a5\u6536\u7aef\u4e00\u6b21\u8bfb\u53d6\u4e0d\u5b8c\u6574&#xff0c;\u5269\u4f59\u6570\u636e\u4e0e\u65b0\u6570\u636e\u6df7\u5408\u3002<\/li>\n<li>\u793a\u4f8b&#xff1a;\u53d1\u9001\u7aef\u53d1\u9001100\u5b57\u8282&#xff0c;\u63a5\u6536\u7aef\u4ec5\u8bfb\u53d650\u5b57\u8282&#xff0c;\u5269\u4f5950\u5b57\u8282\u4e0e\u4e0b\u6b21\u6570\u636e\u7c98\u8fde\u3002<\/li>\n<\/ul>\n<h5>&#xff08;3&#xff09;\u5e95\u5c42\u534f\u8bae\u7279\u6027<\/h5>\n<ul>\n<li>TCP\u4fdd\u8bc1\u5b57\u8282\u6d41\u987a\u5e8f&#xff0c;\u4f46\u4e0d\u4fdd\u8bc1\u6d88\u606f\u8fb9\u754c&#xff0c;\u4e0eUDP\u7684\u201c\u6570\u636e\u62a5\u8fb9\u754c\u201d\u5f62\u6210\u5bf9\u6bd4\u3002<\/li>\n<\/ul>\n<h4>3. \u89e3\u51b3\u65b9\u6848\u5bf9\u6bd4\u4e0e\u5b9e\u8df5<\/h4>\n<h5>&#xff08;1&#xff09;\u6d88\u606f\u5b9a\u957f\u6cd5<\/h5>\n<ul>\n<li>\u539f\u7406&#xff1a;\u56fa\u5b9a\u6bcf\u6761\u6d88\u606f\u957f\u5ea6&#xff0c;\u4e0d\u8db3\u8865\u5168&#xff08;\u59821024\u5b57\u8282&#xff09;\u3002<\/li>\n<li>\u4ee3\u7801\u793a\u4f8b&#xff08;\u53d1\u9001\u7aef&#xff09;&#xff1a;<span class=\"token keyword\">char<\/span> msg<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\">strcpy<\/span><span class=\"token punctuation\">(<\/span>msg<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;Hello&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">send<\/span><span class=\"token punctuation\">(<\/span>sockfd<span class=\"token punctuation\">,<\/span> msg<span class=\"token punctuation\">,<\/span> <span class=\"token number\">1024<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u56fa\u5b9a\u53d1\u90011024\u5b57\u8282  <\/span>\n <\/li>\n<li>\u63a5\u6536\u7aef&#xff1a;\u6bcf\u6b21\u8bfb\u53d6\u56fa\u5b9a\u957f\u5ea6&#xff0c;\u76f4\u63a5\u62c6\u5206\u6d88\u606f\u3002<\/li>\n<li>\u4f18\u7f3a\u70b9&#xff1a;\u7b80\u5355\u76f4\u89c2&#xff0c;\u4f46\u6d6a\u8d39\u5e26\u5bbd&#xff08;\u9002\u5408\u6d88\u606f\u957f\u5ea6\u56fa\u5b9a\u573a\u666f&#xff0c;\u5982\u6570\u636e\u5e93\u534f\u8bae&#xff09;\u3002<\/li>\n<\/ul>\n<h5>&#xff08;2&#xff09;\u8fb9\u754c\u6807\u8bc6\u6cd5<\/h5>\n<ul>\n<li>\u957f\u5ea6\u524d\u7f00\u6cd5&#xff08;\u63a8\u8350&#xff09;&#xff1a;\n<ul>\n<li>\u6d88\u606f\u683c\u5f0f&#xff1a;4\u5b57\u8282\u957f\u5ea6 &#043; \u6d88\u606f\u5185\u5bb9\u3002<\/li>\n<li>\u53d1\u9001\u7aef&#xff1a;<span class=\"token keyword\">char<\/span> data<span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;HelloWorld&#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">int<\/span> len <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">strlen<\/span><span class=\"token punctuation\">(<\/span>data<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">send<\/span><span class=\"token punctuation\">(<\/span>sockfd<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>len<span class=\"token punctuation\">,<\/span> <span class=\"token number\">4<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u5148\u53d1\u9001\u957f\u5ea6  <\/span><br \/>\n<span class=\"token function\">send<\/span><span class=\"token punctuation\">(<\/span>sockfd<span class=\"token punctuation\">,<\/span> data<span class=\"token punctuation\">,<\/span> len<span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u518d\u53d1\u9001\u5185\u5bb9  <\/span>\n <\/li>\n<li>\u63a5\u6536\u7aef&#xff1a;<span class=\"token keyword\">int<\/span> len<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">recv<\/span><span class=\"token punctuation\">(<\/span>sockfd<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>len<span class=\"token punctuation\">,<\/span> <span class=\"token number\">4<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u5148\u8bfb\u957f\u5ea6  <\/span><br \/>\n<span class=\"token keyword\">char<\/span> buff<span class=\"token punctuation\">[<\/span>len<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">recv<\/span><span class=\"token punctuation\">(<\/span>sockfd<span class=\"token punctuation\">,<\/span> buff<span class=\"token punctuation\">,<\/span> len<span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u6309\u957f\u5ea6\u8bfb\u5185\u5bb9  <\/span>\n <\/li>\n<\/ul>\n<\/li>\n<li>\u7ed3\u675f\u7b26\u6cd5&#xff1a;\n<ul>\n<li>\u6d88\u606f\u4ee5\u56fa\u5b9a\u5b57\u7b26\u4e32&#xff08;\u5982\\\\r\\\\n\u3001EOF&#xff09;\u7ed3\u5c3e&#xff0c;\u9002\u7528\u4e8e\u6587\u672c\u534f\u8bae&#xff08;\u5982HTTP\u3001FTP&#xff09;\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h5>&#xff08;3&#xff09;\u5e94\u7528\u5c42\u534f\u8bae\u6cd5<\/h5>\n<ul>\n<li>\u81ea\u5b9a\u4e49\u534f\u8bae\u683c\u5f0f&#xff1a;<span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">Message<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token class-name\">uint32_t<\/span> type<span class=\"token punctuation\">;<\/span>    <span class=\"token comment\">\/\/ \u6d88\u606f\u7c7b\u578b&#xff08;4\u5b57\u8282&#xff09;  <\/span><br \/>\n    <span class=\"token class-name\">uint32_t<\/span> length<span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u5185\u5bb9\u957f\u5ea6&#xff08;4\u5b57\u8282&#xff09;  <\/span><br \/>\n    <span class=\"token keyword\">char<\/span> content<span class=\"token punctuation\">[<\/span><span class=\"token number\">1024<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u5185\u5bb9  <\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span>\n <\/li>\n<li>\u4f18\u52bf&#xff1a;\u652f\u6301\u590d\u6742\u4e1a\u52a1\u903b\u8f91&#xff0c;\u9002\u7528\u4e8eRPC\u3001\u5373\u65f6\u901a\u8baf\u7b49\u573a\u666f\u3002<\/li>\n<\/ul>\n<h3>\u4e8c\u3001\u591a\u7ebf\u7a0b\u670d\u52a1\u5668&#xff1a;\u9ad8\u5e76\u53d1\u5904\u7406\u5b9e\u6218<\/h3>\n<h4>1. \u4ee3\u7801\u67b6\u6784\u89e3\u6790<\/h4>\n<p><span class=\"token comment\">\/\/ \u591a\u7ebf\u7a0b\u670d\u52a1\u5668\u6838\u5fc3\u903b\u8f91&#xff08;ser.c&#xff09;  <\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;pthread.h&gt;<\/span>  <\/span><br \/>\n<span class=\"token comment\">\/\/ \u5957\u63a5\u5b57\u521d\u59cb\u5316\u51fd\u6570  <\/span><br \/>\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">socket_init<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> sockfd <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">socket<\/span><span class=\"token punctuation\">(<\/span>AF_INET<span class=\"token punctuation\">,<\/span> SOCK_STREAM<span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">sockaddr_in<\/span> saddr <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token punctuation\">.<\/span>sin_family <span class=\"token operator\">&#061;<\/span> AF_INET<span class=\"token punctuation\">,<\/span><br \/>\n        <span class=\"token punctuation\">.<\/span>sin_port <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">htons<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">6000<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n        <span class=\"token punctuation\">.<\/span>sin_addr<span class=\"token punctuation\">.<\/span>s_addr <span class=\"token operator\">&#061;<\/span> INADDR_ANY  <span class=\"token comment\">\/\/ \u7ed1\u5b9a\u6240\u6709IP  <\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">bind<\/span><span class=\"token punctuation\">(<\/span>sockfd<span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">sockaddr<\/span><span class=\"token operator\">*<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">&amp;<\/span>saddr<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">sizeof<\/span><span class=\"token punctuation\">(<\/span>saddr<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">listen<\/span><span class=\"token punctuation\">(<\/span>sockfd<span class=\"token punctuation\">,<\/span> <span class=\"token number\">5<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> sockfd<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span>  <\/p>\n<p><span class=\"token comment\">\/\/ \u7ebf\u7a0b\u5904\u7406\u51fd\u6570&#xff1a;\u6bcf\u4e2a\u5ba2\u6237\u7aef\u72ec\u7acb\u7ebf\u7a0b  <\/span><br \/>\n<span class=\"token keyword\">void<\/span><span class=\"token operator\">*<\/span> <span class=\"token function\">recv_fun<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token operator\">*<\/span> arg<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> c <span class=\"token operator\">&#061;<\/span> <span class=\"token operator\">*<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span><span class=\"token operator\">*<\/span><span class=\"token punctuation\">)<\/span>arg<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">free<\/span><span class=\"token punctuation\">(<\/span>arg<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u91ca\u653e\u52a8\u6001\u5206\u914d\u7684\u5957\u63a5\u5b57\u63cf\u8ff0\u7b26\u5185\u5b58  <\/span><br \/>\n    <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">char<\/span> buff<span class=\"token punctuation\">[<\/span><span class=\"token number\">128<\/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 keyword\">int<\/span> n <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">recv<\/span><span class=\"token punctuation\">(<\/span>c<span class=\"token punctuation\">,<\/span> buff<span class=\"token punctuation\">,<\/span> <span class=\"token number\">127<\/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 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>  <span class=\"token comment\">\/\/ n&#061;0\u8868\u793a\u5ba2\u6237\u7aef\u5173\u95ed&#xff0c;n&lt;0\u8868\u793a\u9519\u8bef  <\/span><br \/>\n            <span class=\"token function\">close<\/span><span class=\"token punctuation\">(<\/span>c<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Client %d disconnected\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> c<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token constant\">NULL<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token function\">send<\/span><span class=\"token punctuation\">(<\/span>c<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;ok&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">2<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u7b80\u5355\u5e94\u7b54  <\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/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> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> listen_fd <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">socket_init<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">int<\/span> c <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">accept<\/span><span class=\"token punctuation\">(<\/span>listen_fd<span class=\"token punctuation\">,<\/span> <span class=\"token constant\">NULL<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token constant\">NULL<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>c <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token function\">perror<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;accept&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token keyword\">continue<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u4e3a\u6bcf\u4e2a\u5ba2\u6237\u7aef\u521b\u5efa\u65b0\u7ebf\u7a0b  <\/span><br \/>\n        <span class=\"token keyword\">int<\/span><span class=\"token operator\">*<\/span> conn_fd <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">malloc<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">sizeof<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token operator\">*<\/span>conn_fd <span class=\"token operator\">&#061;<\/span> c<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">pthread_create<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>tid<span class=\"token punctuation\">,<\/span> <span class=\"token constant\">NULL<\/span><span class=\"token punctuation\">,<\/span> recv_fun<span class=\"token punctuation\">,<\/span> conn_fd<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">pthread_detach<\/span><span class=\"token punctuation\">(<\/span>tid<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u5206\u79bb\u7ebf\u7a0b&#xff0c;\u81ea\u52a8\u91ca\u653e\u8d44\u6e90  <\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span>  <\/p>\n<h4>2. \u5173\u952e\u7ec6\u8282\u4e0e\u9677\u9631<\/h4>\n<ul>\n<li>\u5957\u63a5\u5b57\u63cf\u8ff0\u7b26\u4f20\u9012&#xff1a;\n<ul>\n<li>\u5fc5\u987b\u52a8\u6001\u5206\u914d\u5185\u5b58&#xff08;\u5982malloc&#xff09;\u4f20\u9012c&#xff0c;\u907f\u514d\u6808\u5185\u5b58\u88ab\u91ca\u653e\u5bfc\u81f4\u91ce\u6307\u9488\u3002<\/li>\n<li>\u7ebf\u7a0b\u5904\u7406\u51fd\u6570\u4e2d\u7b2c\u4e00\u65f6\u95f4free(arg)&#xff0c;\u9632\u6b62\u5185\u5b58\u6cc4\u6f0f\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u7ebf\u7a0b\u5206\u79bb&#xff1a;\n<ul>\n<li>\u4f7f\u7528pthread_detach(tid)\u8ba9\u7ebf\u7a0b\u7ed3\u675f\u540e\u81ea\u52a8\u91ca\u653e\u8d44\u6e90&#xff0c;\u907f\u514d\u8c03\u7528pthread_join\u963b\u585e\u4e3b\u7ebf\u7a0b\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u7c98\u5305\u5904\u7406&#xff1a;\n<ul>\n<li>\u793a\u4f8b\u4ee3\u7801\u672a\u5904\u7406\u7c98\u5305&#xff0c;\u5b9e\u9645\u9700\u7ed3\u5408\u524d\u6587\u65b9\u6cd5&#xff08;\u5982\u957f\u5ea6\u524d\u7f00\u6cd5&#xff09;\u89e3\u6790\u6570\u636e\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>\u4e09\u3001\u591a\u8fdb\u7a0b\u670d\u52a1\u5668&#xff1a;\u7a33\u5b9a\u6027\u4e0e\u8d44\u6e90\u7ba1\u7406<\/h3>\n<h4>1. \u4ee3\u7801\u67b6\u6784\u89e3\u6790<\/h4>\n<p><span class=\"token comment\">\/\/ \u591a\u8fdb\u7a0b\u670d\u52a1\u5668\u6838\u5fc3\u903b\u8f91  <\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;signal.h&gt;<\/span>  <\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">signal_wait<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> signum<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token function\">wait<\/span><span class=\"token punctuation\">(<\/span><span class=\"token constant\">NULL<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u5904\u7406\u5b50\u8fdb\u7a0b\u9000\u51fa&#xff0c;\u907f\u514d\u50f5\u5c38\u8fdb\u7a0b  <\/span><br \/>\n<span class=\"token punctuation\">}<\/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> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> listen_fd <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">socket_init<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">signal<\/span><span class=\"token punctuation\">(<\/span>SIGCHLD<span class=\"token punctuation\">,<\/span> signal_wait<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u6ce8\u518c\u5b50\u8fdb\u7a0b\u9000\u51fa\u4fe1\u53f7\u5904\u7406  <\/span><br \/>\n    <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">int<\/span> c <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">accept<\/span><span class=\"token punctuation\">(<\/span>listen_fd<span class=\"token punctuation\">,<\/span> <span class=\"token constant\">NULL<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token constant\">NULL<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token class-name\">pid_t<\/span> 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><br \/>\n        <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> <span class=\"token function\">close<\/span><span class=\"token punctuation\">(<\/span>c<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token keyword\">continue<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span><br \/>\n        <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            <span class=\"token function\">close<\/span><span class=\"token punctuation\">(<\/span>listen_fd<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u5b50\u8fdb\u7a0b\u5173\u95ed\u76d1\u542c\u5957\u63a5\u5b57  <\/span><br \/>\n            <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                <span class=\"token comment\">\/\/ \u6570\u636e\u5904\u7406\u903b\u8f91&#xff08;\u540c\u591a\u7ebf\u7a0b\u7248\u672c&#xff09;  <\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n            <span class=\"token function\">close<\/span><span class=\"token punctuation\">(<\/span>c<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> <span class=\"token keyword\">else<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token function\">close<\/span><span class=\"token punctuation\">(<\/span>c<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u7236\u8fdb\u7a0b\u5173\u95ed\u8fde\u63a5\u5957\u63a5\u5b57&#xff0c;\u7531\u5b50\u8fdb\u7a0b\u5904\u7406  <\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span>  <\/p>\n<h4>2. \u591a\u8fdb\u7a0b vs \u591a\u7ebf\u7a0b<\/h4>\n<table>\n<tr>\u7279\u6027\u591a\u7ebf\u7a0b\u591a\u8fdb\u7a0b<\/tr>\n<tbody>\n<tr>\n<td>\u8d44\u6e90\u5171\u4eab<\/td>\n<td>\u5171\u4eab\u5730\u5740\u7a7a\u95f4&#xff08;\u9700\u540c\u6b65&#xff09;<\/td>\n<td>\u72ec\u7acb\u5730\u5740\u7a7a\u95f4&#xff08;\u5b89\u5168&#xff0c;\u5f00\u9500\u5927&#xff09;<\/td>\n<\/tr>\n<tr>\n<td>\u4e0a\u4e0b\u6587\u5207\u6362<\/td>\n<td>\u5f00\u9500\u5c0f&#xff08;\u4ec5\u5bc4\u5b58\u5668\u3001\u6808&#xff09;<\/td>\n<td>\u5f00\u9500\u5927&#xff08;\u5730\u5740\u7a7a\u95f4\u5168\u91cf\u5207\u6362&#xff09;<\/td>\n<\/tr>\n<tr>\n<td>\u9002\u7528\u573a\u666f<\/td>\n<td>IO\u5bc6\u96c6\u578b&#xff08;\u5982\u7f51\u7edc\u5e76\u53d1&#xff09;<\/td>\n<td>CPU\u5bc6\u96c6\u578b&#xff08;\u5145\u5206\u5229\u7528\u591a\u6838&#xff09;<\/td>\n<\/tr>\n<tr>\n<td>\u7f16\u7a0b\u590d\u6742\u5ea6<\/td>\n<td>\u9ad8&#xff08;\u540c\u6b65\u673a\u5236&#xff09;<\/td>\n<td>\u4f4e&#xff08;\u5929\u7136\u9694\u79bb&#xff09;<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u56db\u3001\u9ad8\u9891\u95ee\u9898\u4e0e\u6700\u4f73\u5b9e\u8df5<\/h3>\n<h4>1. \u7c98\u5305\u95ee\u9898\u907f\u5751\u6307\u5357<\/h4>\n<ul>\n<li>\u9519\u8bef\u505a\u6cd5&#xff1a;\u4f9d\u8d56recv\u8fd4\u56de\u503c\u5224\u65ad\u6d88\u606f\u8fb9\u754c&#xff08;\u4ec5\u80fd\u5224\u65ad\u8fde\u63a5\u662f\u5426\u5173\u95ed&#xff09;\u3002<\/li>\n<li>\u6b63\u786e\u59ff\u52bf&#xff1a;\n<ul>\n<li>\u59cb\u7ec8\u5047\u8bbe\u63a5\u6536\u6570\u636e\u4e0d\u5b8c\u6574&#xff0c;\u4f7f\u7528\u5faa\u73af\u8bfb\u53d6\u76f4\u5230\u83b7\u53d6\u5b8c\u6574\u6d88\u606f\u3002<\/li>\n<li>\u63a8\u8350\u957f\u5ea6\u524d\u7f00\u6cd5&#xff08;\u59824\u5b57\u8282\u957f\u5ea6&#043;\u5185\u5bb9&#xff09;&#xff0c;\u517c\u5bb9\u4e8c\u8fdb\u5236\u4e0e\u6587\u672c\u534f\u8bae\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h4>2. \u591a\u7ebf\u7a0b\u670d\u52a1\u5668\u6027\u80fd\u74f6\u9888<\/h4>\n<ul>\n<li>\u7ebf\u7a0b\u6570\u91cf\u9650\u5236&#xff1a;\u5355\u8fdb\u7a0b\u7ebf\u7a0b\u6570\u53d7\u9650\u4e8e\u5185\u5b58&#xff08;\u9ed8\u8ba4\u6808\u5927\u5c0f8MB&#xff0c;1000\u7ebf\u7a0b\u7ea68GB\u5185\u5b58&#xff09;\u3002<\/li>\n<li>\u4f18\u5316\u65b9\u6848&#xff1a;\n<ul>\n<li>\u4f7f\u7528\u7ebf\u7a0b\u6c60&#xff08;\u5982pthread_pool&#xff09;\u590d\u7528\u7ebf\u7a0b&#xff0c;\u51cf\u5c11\u521b\u5efa\u9500\u6bc1\u5f00\u9500\u3002<\/li>\n<li>\u8bbe\u7f6e\u5957\u63a5\u5b57\u4e3a\u975e\u963b\u585e\u6a21\u5f0f&#xff0c;\u914d\u5408epoll\u5b9e\u73b0IO\u591a\u8def\u590d\u7528&#xff08;\u9002\u7528\u4e8e\u6d77\u91cf\u8fde\u63a5&#xff09;\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h4>3. \u591a\u8fdb\u7a0b\u50f5\u5c38\u8fdb\u7a0b\u5904\u7406<\/h4>\n<ul>\n<li>\u5fc5\u505a\u64cd\u4f5c&#xff1a;\n<ul>\n<li>\u6ce8\u518cSIGCHLD\u4fe1\u53f7\u5904\u7406\u51fd\u6570&#xff0c;\u6216\u8bbe\u7f6esignal(SIGCHLD, SIG_IGN)\u5ffd\u7565\u4fe1\u53f7&#xff08;Linux\u7279\u6709\u7684\u7b80\u5355\u65b9\u6848&#xff09;\u3002<\/li>\n<li>\u5b50\u8fdb\u7a0b\u4e2d\u52a1\u5fc5close(listen_fd)&#xff0c;\u907f\u514d\u7aef\u53e3\u88ab\u610f\u5916\u5360\u7528\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>\u4e94\u3001\u603b\u7ed3&#xff1a;\u9009\u62e9\u5408\u9002\u7684\u5e76\u53d1\u6a21\u578b<\/h3>\n<ul>\n<li>\u5c0f\u89c4\u6a21\u5e76\u53d1&#xff08;&lt;100\u8fde\u63a5&#xff09;&#xff1a;\u591a\u7ebf\u7a0b\/\u591a\u8fdb\u7a0b\u76f4\u63a5\u5904\u7406&#xff0c;\u4ee3\u7801\u7b80\u5355\u6613\u7ef4\u62a4\u3002<\/li>\n<li>\u5927\u89c4\u6a21\u5e76\u53d1&#xff08;&gt;1000\u8fde\u63a5&#xff09;&#xff1a;IO\u591a\u8def\u590d\u7528&#xff08;epoll&#043;\u975e\u963b\u585eIO&#xff09;&#xff0c;\u907f\u514d\u7ebf\u7a0b\/\u8fdb\u7a0b\u7206\u70b8\u3002<\/li>\n<li>\u7c98\u5305\u5904\u7406&#xff1a;\u6839\u636e\u534f\u8bae\u7c7b\u578b\u9009\u62e9\u5b9a\u957f\u6cd5\u3001\u8fb9\u754c\u6cd5\u6216\u5e94\u7528\u5c42\u534f\u8bae&#xff0c;\u4f18\u5148\u5b9e\u73b0\u957f\u5ea6\u524d\u7f00\u683c\u5f0f\u3002<\/li>\n<\/ul>\n<p>\u7f51\u7edc\u7f16\u7a0b\u7684\u6838\u5fc3\u662f\u201c\u5904\u7406\u4e0d\u786e\u5b9a\u6027\u201d\u2014\u2014\u4e0d\u786e\u5b9a\u7684\u7f51\u7edc\u5ef6\u8fdf\u3001\u4e0d\u786e\u5b9a\u7684\u6570\u636e\u5305\u987a\u5e8f\u3001\u4e0d\u786e\u5b9a\u7684\u8fde\u63a5\u72b6\u6001\u3002\u901a\u8fc7\u5408\u7406\u7684\u534f\u8bae\u8bbe\u8ba1\u548c\u5e76\u53d1\u6a21\u578b\u9009\u62e9&#xff0c;\u624d\u80fd\u6784\u5efa\u5065\u58ee\u7684\u7f51\u7edc\u670d\u52a1\u3002<\/p>\n<h3>\u516d\u3001\u5e38\u89c1\u95ee\u9898\u548c\u9762\u8bd5\u5e38\u95ee\u70b9<\/h3>\n<h5>\u591a\u7ebf\u7a0b TCP \u7f16\u7a0b\u4e2d\u7684\u95ee\u9898<\/h5>\n<li>\u7ebf\u7a0b\u5b89\u5168\u95ee\u9898&#xff1a;\u591a\u4e2a\u7ebf\u7a0b\u53ef\u80fd\u540c\u65f6\u8bbf\u95ee\u5171\u4eab\u8d44\u6e90&#xff0c;\u5982\u5168\u5c40\u53d8\u91cf\u3001\u6587\u4ef6\u63cf\u8ff0\u7b26\u7b49&#xff0c;\u9700\u8981\u4f7f\u7528\u540c\u6b65\u673a\u5236&#xff08;\u5982\u4e92\u65a5\u9501\u3001\u4fe1\u53f7\u91cf&#xff09;\u6765\u4fdd\u8bc1\u6570\u636e\u7684\u4e00\u81f4\u6027\u3002<\/li>\n<li>\u8d44\u6e90\u7ade\u4e89&#xff1a;\u7ebf\u7a0b\u4e4b\u95f4\u53ef\u80fd\u4f1a\u7ade\u4e89\u6709\u9650\u7684\u8d44\u6e90&#xff0c;\u5982\u5185\u5b58\u3001CPU \u65f6\u95f4\u7b49&#xff0c;\u53ef\u80fd\u5bfc\u81f4\u6027\u80fd\u4e0b\u964d\u6216\u6b7b\u9501\u3002<\/li>\n<li>\u7ebf\u7a0b\u7ba1\u7406&#xff1a;\u521b\u5efa\u548c\u9500\u6bc1\u7ebf\u7a0b\u4f1a\u5e26\u6765\u4e00\u5b9a\u7684\u5f00\u9500&#xff0c;\u8fc7\u591a\u7684\u7ebf\u7a0b\u4f1a\u5bfc\u81f4\u7cfb\u7edf\u8d44\u6e90\u8017\u5c3d\u3002\u9700\u8981\u5408\u7406\u7ba1\u7406\u7ebf\u7a0b\u6570\u91cf&#xff0c;\u4f8b\u5982\u4f7f\u7528\u7ebf\u7a0b\u6c60\u3002<\/li>\n<li>\u7c98\u5305\u95ee\u9898&#xff1a;TCP \u662f\u9762\u5411\u6d41\u7684\u534f\u8bae&#xff0c;\u53ef\u80fd\u4f1a\u51fa\u73b0\u7c98\u5305\u73b0\u8c61&#xff0c;\u9700\u8981\u5728\u5e94\u7528\u5c42\u8fdb\u884c\u5904\u7406&#xff0c;\u5982\u4f7f\u7528\u6d88\u606f\u5b9a\u957f\u3001\u8fb9\u754c\u6807\u8bc6\u7b49\u65b9\u6cd5\u3002<\/li>\n<li>\u5f02\u5e38\u5904\u7406&#xff1a;\u7ebf\u7a0b\u4e2d\u53d1\u751f\u7684\u5f02\u5e38\u9700\u8981\u6b63\u786e\u5904\u7406&#xff0c;\u5426\u5219\u53ef\u80fd\u5bfc\u81f4\u7a0b\u5e8f\u5d29\u6e83\u6216\u8d44\u6e90\u6cc4\u6f0f\u3002<\/li>\n<h5>\u9762\u8bd5\u5e38\u95ee\u70b9<\/h5>\n<li>\u591a\u7ebf\u7a0b\u548c\u591a\u8fdb\u7a0b\u7684\u4f18\u7f3a\u70b9\u6bd4\u8f83&#xff1a;\u591a\u7ebf\u7a0b\u5171\u4eab\u8fdb\u7a0b\u7684\u8d44\u6e90&#xff0c;\u521b\u5efa\u548c\u9500\u6bc1\u5f00\u9500\u5c0f&#xff0c;\u4f46\u5b58\u5728\u7ebf\u7a0b\u5b89\u5168\u95ee\u9898&#xff1b;\u591a\u8fdb\u7a0b\u62e5\u6709\u72ec\u7acb\u7684\u5185\u5b58\u7a7a\u95f4&#xff0c;\u7a33\u5b9a\u6027\u9ad8&#xff0c;\u4f46\u521b\u5efa\u548c\u9500\u6bc1\u5f00\u9500\u5927&#xff0c;\u8fdb\u7a0b\u95f4\u901a\u4fe1\u590d\u6742\u3002<\/li>\n<li>\u5982\u4f55\u89e3\u51b3\u7ebf\u7a0b\u5b89\u5168\u95ee\u9898&#xff1a;\u53ef\u4ee5\u4f7f\u7528\u4e92\u65a5\u9501\u3001\u8bfb\u5199\u9501\u3001\u4fe1\u53f7\u91cf\u3001\u6761\u4ef6\u53d8\u91cf\u7b49\u540c\u6b65\u673a\u5236\u6765\u4fdd\u8bc1\u7ebf\u7a0b\u5b89\u5168\u3002<\/li>\n<li>\u7ebf\u7a0b\u6c60\u7684\u539f\u7406\u548c\u5b9e\u73b0&#xff1a;\u7ebf\u7a0b\u6c60\u9884\u5148\u521b\u5efa\u4e00\u5b9a\u6570\u91cf\u7684\u7ebf\u7a0b&#xff0c;\u5f53\u6709\u4efb\u52a1\u5230\u6765\u65f6&#xff0c;\u4ece\u7ebf\u7a0b\u6c60\u4e2d\u53d6\u51fa\u4e00\u4e2a\u7a7a\u95f2\u7ebf\u7a0b\u6765\u5904\u7406\u4efb\u52a1&#xff0c;\u4efb\u52a1\u5b8c\u6210\u540e\u7ebf\u7a0b\u8fd4\u56de\u7ebf\u7a0b\u6c60\u3002\u8fd9\u6837\u53ef\u4ee5\u51cf\u5c11\u7ebf\u7a0b\u521b\u5efa\u548c\u9500\u6bc1\u7684\u5f00\u9500\u3002<\/li>\n<li>\u7c98\u5305\u95ee\u9898\u7684\u539f\u56e0\u548c\u89e3\u51b3\u65b9\u6848&#xff1a;\u7c98\u5305\u95ee\u9898\u662f\u7531\u4e8e TCP \u534f\u8bae\u7684\u7279\u6027\u5bfc\u81f4\u7684&#xff0c;\u89e3\u51b3\u65b9\u6848\u5305\u62ec\u6d88\u606f\u5b9a\u957f\u6cd5\u3001\u8fb9\u754c\u6807\u8bc6\u6cd5\u548c\u5e94\u7528\u5c42\u534f\u8bae\u6cd5\u7b49\u3002<\/li>\n<li>\u4fe1\u53f7\u5904\u7406\u548c\u50f5\u5c38\u8fdb\u7a0b\u7684\u5904\u7406&#xff1a;\u5728\u591a\u8fdb\u7a0b\u7f16\u7a0b\u4e2d&#xff0c;\u9700\u8981\u5904\u7406\u5b50\u8fdb\u7a0b\u7ed3\u675f\u7684\u4fe1\u53f7&#xff0c;\u907f\u514d\u50f5\u5c38\u8fdb\u7a0b\u7684\u4ea7\u751f\u3002\u53ef\u4ee5\u4f7f\u7528 wait \u6216 waitpid \u51fd\u6570\u56de\u6536\u5b50\u8fdb\u7a0b\u7684\u8d44\u6e90&#xff0c;\u6216\u8005\u5ffd\u7565 SIGCHLD \u4fe1\u53f7\u3002<\/li>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb800\u6b21\uff0c\u70b9\u8d5e14\u6b21\uff0c\u6536\u85cf28\u6b21\u3002\u7f51\u7edc\u7f16\u7a0b\u7684\u6838\u5fc3\u662f\u201c\u5904\u7406\u4e0d\u786e\u5b9a\u6027\u201d\u2014\u2014\u4e0d\u786e\u5b9a\u7684\u7f51\u7edc\u5ef6\u8fdf\u3001\u4e0d\u786e\u5b9a\u7684\u6570\u636e\u5305\u987a\u5e8f\u3001\u4e0d\u786e\u5b9a\u7684\u8fde\u63a5\u72b6\u6001\u3002\u901a\u8fc7\u5408\u7406\u7684\u534f\u8bae\u8bbe\u8ba1\u548c\u5e76\u53d1\u6a21\u578b\u9009\u62e9\uff0c\u624d\u80fd\u6784\u5efa\u5065\u58ee\u7684\u7f51\u7edc\u670d\u52a1\u3002<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[58,103,43,78,44],"topic":[],"class_list":["post-37306","post","type-post","status-publish","format-standard","hentry","category-server","tag-linux","tag-ubuntu","tag-43","tag-78","tag-44"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u591a\u7ebf\u7a0b\u7f51\u7edc\u7f16\u7a0b\uff1a\u7c98\u5305\u95ee\u9898\u3001\u591a\u7ebf\u7a0b\/\u591a\u8fdb\u7a0b\u670d\u52a1\u5668\u5b9e\u6218\u4e0e\u5e38\u89c1\u95ee\u9898\u89e3\u6790 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/37306.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u591a\u7ebf\u7a0b\u7f51\u7edc\u7f16\u7a0b\uff1a\u7c98\u5305\u95ee\u9898\u3001\u591a\u7ebf\u7a0b\/\u591a\u8fdb\u7a0b\u670d\u52a1\u5668\u5b9e\u6218\u4e0e\u5e38\u89c1\u95ee\u9898\u89e3\u6790 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb800\u6b21\uff0c\u70b9\u8d5e14\u6b21\uff0c\u6536\u85cf28\u6b21\u3002\u7f51\u7edc\u7f16\u7a0b\u7684\u6838\u5fc3\u662f\u201c\u5904\u7406\u4e0d\u786e\u5b9a\u6027\u201d\u2014\u2014\u4e0d\u786e\u5b9a\u7684\u7f51\u7edc\u5ef6\u8fdf\u3001\u4e0d\u786e\u5b9a\u7684\u6570\u636e\u5305\u987a\u5e8f\u3001\u4e0d\u786e\u5b9a\u7684\u8fde\u63a5\u72b6\u6001\u3002\u901a\u8fc7\u5408\u7406\u7684\u534f\u8bae\u8bbe\u8ba1\u548c\u5e76\u53d1\u6a21\u578b\u9009\u62e9\uff0c\u624d\u80fd\u6784\u5efa\u5065\u58ee\u7684\u7f51\u7edc\u670d\u52a1\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.wsisp.com\/helps\/37306.html\" \/>\n<meta property=\"og:site_name\" content=\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"article:published_time\" content=\"2025-05-15T03:46:07+00:00\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/37306.html\",\"url\":\"https:\/\/www.wsisp.com\/helps\/37306.html\",\"name\":\"\u591a\u7ebf\u7a0b\u7f51\u7edc\u7f16\u7a0b\uff1a\u7c98\u5305\u95ee\u9898\u3001\u591a\u7ebf\u7a0b\/\u591a\u8fdb\u7a0b\u670d\u52a1\u5668\u5b9e\u6218\u4e0e\u5e38\u89c1\u95ee\u9898\u89e3\u6790 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\",\"isPartOf\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/#website\"},\"datePublished\":\"2025-05-15T03:46:07+00:00\",\"dateModified\":\"2025-05-15T03:46:07+00:00\",\"author\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41\"},\"breadcrumb\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/37306.html#breadcrumb\"},\"inLanguage\":\"zh-Hans\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.wsisp.com\/helps\/37306.html\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/37306.html#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/www.wsisp.com\/helps\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"\u591a\u7ebf\u7a0b\u7f51\u7edc\u7f16\u7a0b\uff1a\u7c98\u5305\u95ee\u9898\u3001\u591a\u7ebf\u7a0b\/\u591a\u8fdb\u7a0b\u670d\u52a1\u5668\u5b9e\u6218\u4e0e\u5e38\u89c1\u95ee\u9898\u89e3\u6790\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#website\",\"url\":\"https:\/\/www.wsisp.com\/helps\/\",\"name\":\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\",\"description\":\"\u9999\u6e2f\u670d\u52a1\u5668_\u9999\u6e2f\u4e91\u670d\u52a1\u5668\u8d44\u8baf_\u670d\u52a1\u5668\u5e2e\u52a9\u6587\u6863_\u670d\u52a1\u5668\u6559\u7a0b\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.wsisp.com\/helps\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"zh-Hans\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41\",\"name\":\"admin\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery\",\"contentUrl\":\"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery\",\"caption\":\"admin\"},\"sameAs\":[\"http:\/\/wp.wsisp.com\"],\"url\":\"https:\/\/www.wsisp.com\/helps\/author\/admin\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"\u591a\u7ebf\u7a0b\u7f51\u7edc\u7f16\u7a0b\uff1a\u7c98\u5305\u95ee\u9898\u3001\u591a\u7ebf\u7a0b\/\u591a\u8fdb\u7a0b\u670d\u52a1\u5668\u5b9e\u6218\u4e0e\u5e38\u89c1\u95ee\u9898\u89e3\u6790 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.wsisp.com\/helps\/37306.html","og_locale":"zh_CN","og_type":"article","og_title":"\u591a\u7ebf\u7a0b\u7f51\u7edc\u7f16\u7a0b\uff1a\u7c98\u5305\u95ee\u9898\u3001\u591a\u7ebf\u7a0b\/\u591a\u8fdb\u7a0b\u670d\u52a1\u5668\u5b9e\u6218\u4e0e\u5e38\u89c1\u95ee\u9898\u89e3\u6790 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","og_description":"\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb800\u6b21\uff0c\u70b9\u8d5e14\u6b21\uff0c\u6536\u85cf28\u6b21\u3002\u7f51\u7edc\u7f16\u7a0b\u7684\u6838\u5fc3\u662f\u201c\u5904\u7406\u4e0d\u786e\u5b9a\u6027\u201d\u2014\u2014\u4e0d\u786e\u5b9a\u7684\u7f51\u7edc\u5ef6\u8fdf\u3001\u4e0d\u786e\u5b9a\u7684\u6570\u636e\u5305\u987a\u5e8f\u3001\u4e0d\u786e\u5b9a\u7684\u8fde\u63a5\u72b6\u6001\u3002\u901a\u8fc7\u5408\u7406\u7684\u534f\u8bae\u8bbe\u8ba1\u548c\u5e76\u53d1\u6a21\u578b\u9009\u62e9\uff0c\u624d\u80fd\u6784\u5efa\u5065\u58ee\u7684\u7f51\u7edc\u670d\u52a1\u3002","og_url":"https:\/\/www.wsisp.com\/helps\/37306.html","og_site_name":"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","article_published_time":"2025-05-15T03:46:07+00:00","author":"admin","twitter_card":"summary_large_image","twitter_misc":{"\u4f5c\u8005":"admin","\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4":"3 \u5206"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.wsisp.com\/helps\/37306.html","url":"https:\/\/www.wsisp.com\/helps\/37306.html","name":"\u591a\u7ebf\u7a0b\u7f51\u7edc\u7f16\u7a0b\uff1a\u7c98\u5305\u95ee\u9898\u3001\u591a\u7ebf\u7a0b\/\u591a\u8fdb\u7a0b\u670d\u52a1\u5668\u5b9e\u6218\u4e0e\u5e38\u89c1\u95ee\u9898\u89e3\u6790 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","isPartOf":{"@id":"https:\/\/www.wsisp.com\/helps\/#website"},"datePublished":"2025-05-15T03:46:07+00:00","dateModified":"2025-05-15T03:46:07+00:00","author":{"@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41"},"breadcrumb":{"@id":"https:\/\/www.wsisp.com\/helps\/37306.html#breadcrumb"},"inLanguage":"zh-Hans","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.wsisp.com\/helps\/37306.html"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.wsisp.com\/helps\/37306.html#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/www.wsisp.com\/helps"},{"@type":"ListItem","position":2,"name":"\u591a\u7ebf\u7a0b\u7f51\u7edc\u7f16\u7a0b\uff1a\u7c98\u5305\u95ee\u9898\u3001\u591a\u7ebf\u7a0b\/\u591a\u8fdb\u7a0b\u670d\u52a1\u5668\u5b9e\u6218\u4e0e\u5e38\u89c1\u95ee\u9898\u89e3\u6790"}]},{"@type":"WebSite","@id":"https:\/\/www.wsisp.com\/helps\/#website","url":"https:\/\/www.wsisp.com\/helps\/","name":"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","description":"\u9999\u6e2f\u670d\u52a1\u5668_\u9999\u6e2f\u4e91\u670d\u52a1\u5668\u8d44\u8baf_\u670d\u52a1\u5668\u5e2e\u52a9\u6587\u6863_\u670d\u52a1\u5668\u6559\u7a0b","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.wsisp.com\/helps\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"zh-Hans"},{"@type":"Person","@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41","name":"admin","image":{"@type":"ImageObject","inLanguage":"zh-Hans","@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/image\/","url":"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery","contentUrl":"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery","caption":"admin"},"sameAs":["http:\/\/wp.wsisp.com"],"url":"https:\/\/www.wsisp.com\/helps\/author\/admin"}]}},"_links":{"self":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts\/37306","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/comments?post=37306"}],"version-history":[{"count":0,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts\/37306\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/media?parent=37306"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/categories?post=37306"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/tags?post=37306"},{"taxonomy":"topic","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/topic?post=37306"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}