{"id":15869,"date":"2025-04-18T22:22:31","date_gmt":"2025-04-18T14:22:31","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/15869.html"},"modified":"2025-04-18T22:22:31","modified_gmt":"2025-04-18T14:22:31","slug":"%e7%bd%91%e7%bb%9c%e7%bc%96%e7%a8%8b%ef%bc%88%e4%ba%8c%ef%bc%89%ef%bc%9a%e5%9f%ba%e4%ba%8ereactor%e6%a8%a1%e5%9e%8b%e5%ae%9e%e7%8e%b0%e6%9c%8d%e5%8a%a1%e5%99%a8%e7%99%be%e4%b8%87%e5%b9%b6%e5%8f%91","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/15869.html","title":{"rendered":"\u7f51\u7edc\u7f16\u7a0b\uff08\u4e8c\uff09\uff1a\u57fa\u4e8eReactor\u6a21\u578b\u5b9e\u73b0\u670d\u52a1\u5668\u767e\u4e07\u5e76\u53d1"},"content":{"rendered":"<\/p>\n<h4>\u6587\u7ae0\u76ee\u5f55<\/h4>\n<ul>\n<li>\u4e00\u3001Reactor\u662f\u4ec0\u4e48?<\/li>\n<li>\n<ul>\n<li>Reactor\u57fa\u672c\u539f\u7406<\/li>\n<li>Reacto\u9488\u5bf9\u4e1a\u52a1\u7684\u4f18\u70b9<\/li>\n<\/ul>\n<\/li>\n<li>\u4e8c\u3001\u670d\u52a1\u5668\u767e\u4e07\u5e76\u53d1&#xff08;\u57fa\u4e8eReactor&#xff09;<\/li>\n<li>\n<ul>\n<li>\u6e90\u7801<\/li>\n<li>\u6838\u5fc3\u601d\u60f3<\/li>\n<li>\u5de5\u4f5c\u6d41\u7a0b<\/li>\n<li>\n<ul>\n<li>\u6267\u884c\u6307\u4ee4<\/li>\n<li>BUG\u6574\u7406<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>\u4e09\u3001\u601d\u8003\u95ee\u9898<\/li>\n<li>\n<ul>\n<li>1. \u76f8\u6bd4\u76f4\u63a5\u8c03\u7528epoll&#xff0c;reactor\u7684\u4f18\u52bf\u4f53\u73b0\u5728\u54ea?<\/li>\n<li>\n<ul>\n<li>&#xff08;1&#xff09;epoll\u7684\u5c40\u9650<\/li>\n<li>&#xff08;2&#xff09;reactor\u7684\u4f18\u52bf<\/li>\n<li>\n<ul>\n<li>1. \u7f13\u51b2\u533a\u7ba1\u7406<\/li>\n<li>2. \u56de\u8c03\u673a\u5236\u7684\u7075\u6d3b\u6027<\/li>\n<li>3. \u72b6\u6001\u7ba1\u7406\u4e0e\u5904\u7406<\/li>\n<li>4. \u6613\u4e8e\u6269\u5c55<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>2. Reactor\u6a21\u5f0f\u5982\u4f55\u5b9e\u73b0 \u7f51\u7edc\u4e0e\u4e1a\u52a1\u7684\u9694\u79bb&#xff1f;<\/li>\n<li>\n<ul>\n<li>&#xff08;1&#xff09;\u7f51\u7edc\u5c42\u548c\u4e1a\u52a1\u5c42\u7684\u5b9a\u4e49<\/li>\n<li>&#xff08;2&#xff09;Reactor\u6a21\u5f0f\u5982\u4f55\u5b9e\u73b0\u9694\u79bb<\/li>\n<li>\u4e00\u53e5\u8bdd\u6982\u62ecReactor<\/li>\n<li>\u89e3\u8026\u7684\u7406\u89e3<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr \/>\n<h2>\u4e00\u3001Reactor\u662f\u4ec0\u4e48?<\/h2>\n<h3>Reactor\u57fa\u672c\u539f\u7406<\/h3>\n<li>Reactor\u662f\u4e00\u79cd\u4e8b\u4ef6\u9a71\u52a8\u673a\u5236&#xff0c;\u7528\u4e8e\u540c\u6b65IO\u3002\u5c06I\/O\u64cd\u4f5c\u7684\u5e76\u53d1\u5904\u7406\u4ece\u5355\u7ebf\u7a0b\u4e2d\u5206\u79bb\u51fa\u6765&#xff0c;\u4f7f\u7a0b\u5e8f\u53ef\u4ee5\u540c\u65f6\u5904\u7406\u591a\u4e2a\u5ba2\u6237\u7aef\u8bf7\u6c42.<\/li>\n<li>\u7531io\u7ba1\u7406\u8f6c\u53d8\u4e3a\u5bf9\u4e8b\u4ef6\u8fdb\u884c\u7ba1\u7406&#xff0c;\u4e0d\u540c\u7684io\u4e8b\u4ef6\u5bf9\u5e94\u4e0d\u540c\u7684\u56de\u8c03\u51fd\u6570,\u6bcf\u4e00\u4e2aio\u72ec\u7acb\u5c01\u88c5<\/li>\n<p>register&#xff08;\u6ce8\u518c\u5bf9\u5e94\u7684\u4e8b\u4ef6&#xff0c;\u6bd4\u5982read\u3001write\u3001send\u2026&#xff09;<br \/>\ncallback&#xff08;\u6839\u636e\u4e0d\u540c\u4e8b\u4ef6\u8c03\u7528\u4e0d\u540c\u56de\u8c03\u51fd\u6570&#xff09;<\/p>\n<h3>Reacto\u9488\u5bf9\u4e1a\u52a1\u7684\u4f18\u70b9<\/h3>\n<li>\u9ad8\u6548 &#xff1a;\u901a\u8fc7\u4e8b\u4ef6\u9a71\u52a8\u673a\u5236&#xff0c;\u907f\u514d\u4e86\u4f20\u7edf\u7684\u7ebf\u7a0b\u6c60\u6216\u8005\u8fdb\u7a0b\u6c60\u5e26\u6765\u7684\u8d44\u6e90\u6d88\u8017\u3002<\/li>\n<li>\u53ef\u6269\u5c55&#xff1a;\u9002\u5408\u9ad8\u5e76\u53d1\u3001\u4f4e\u5ef6\u8fdf\u7684\u573a\u666f&#xff0c;\u5982\u9ad8\u6027\u80fd\u7684Web\u670d\u52a1\u5668\u3001\u5206\u5e03\u5f0f\u7cfb\u7edf\u3001\u6570\u636e\u5e93\u8fde\u63a5\u6c60\u7b49\u9ad8\u6548\u5904\u7406\u4e8b\u4ef6\u7684\u573a\u666f\u3002<\/li>\n<li>\u7b80\u5316\u591a\u7ebf\u7a0b\u5e76\u53d1\u63a7\u5236&#xff1a;\u901a\u5e38\u5728\u5355\u7ebf\u7a0b\u6216\u5c11\u6570\u7ebf\u7a0b\u4e2d\u5de5\u4f5c&#xff0c;\u7b80\u5316\u4e86\u591a\u7ebf\u7a0b\u7684\u540c\u6b65\u95ee\u9898\u3002 <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418142230-680260267e48d.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/li>\n<hr \/>\n<h2>\u4e8c\u3001\u670d\u52a1\u5668\u767e\u4e07\u5e76\u53d1&#xff08;\u57fa\u4e8eReactor&#xff09;<\/h2>\n<h3>\u6e90\u7801<\/h3>\n<p>reactor.c<\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;errno.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;stdio.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;sys\/socket.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;netinet\/in.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;string.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;pthread.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;unistd.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;poll.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;sys\/epoll.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;errno.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;sys\/time.h&gt;<\/span><\/span><\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&#034;server.h&#034;<\/span><\/span><\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">CONNECTION_SIZE<\/span><span class=\"token expression\"><span class=\"token number\">1048576<\/span> <\/span><span class=\"token comment\">\/\/ 1024 * 1024<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">MAX_PORTS<\/span><span class=\"token expression\"><span class=\"token number\">20<\/span><\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name function\">TIME_SUB_MS<\/span><span class=\"token expression\"><span class=\"token punctuation\">(<\/span>tv1<span class=\"token punctuation\">,<\/span> tv2<span class=\"token punctuation\">)<\/span>  <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span>tv1<span class=\"token punctuation\">.<\/span>tv_sec <span class=\"token operator\">&#8211;<\/span> tv2<span class=\"token punctuation\">.<\/span>tv_sec<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">*<\/span> <span class=\"token number\">1000<\/span> <span class=\"token operator\">&#043;<\/span> <span class=\"token punctuation\">(<\/span>tv1<span class=\"token punctuation\">.<\/span>tv_usec <span class=\"token operator\">&#8211;<\/span> tv2<span class=\"token punctuation\">.<\/span>tv_usec<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">\/<\/span> <span class=\"token number\">1000<\/span><span class=\"token punctuation\">)<\/span><\/span><\/span><\/p>\n<p><span class=\"token comment\">\/\/ BUFFER_LENGTH&#xff1a;    \u7528\u4e8e\u5b58\u50a8\u8bfb\u53d6\u548c\u5199\u5165\u6570\u636e\u7684\u7f13\u51b2\u533a\u5927\u5c0f<\/span><br \/>\n<span class=\"token comment\">\/\/ CONNECTION_SIZE&#xff1a;  \u6700\u5927\u8fde\u63a5\u6570<\/span><br \/>\n<span class=\"token comment\">\/\/ MAX_PORTS&#xff1a;        \u6700\u5927\u76d1\u542c\u7684\u7aef\u53e3\u6570<\/span><br \/>\n<span class=\"token comment\">\/\/ TIME_SUB_MS        \u5b8f\u7528\u4e8e\u8ba1\u7b97\u4e24\u4e2a struct timeval \u7c7b\u578b\u7684\u65f6\u95f4\u5dee&#xff08;\u5355\u4f4d\u4e3a\u6beb\u79d2&#xff09;<\/span><\/p>\n<p><span class=\"token keyword\">int<\/span> <span class=\"token function\">accept_cb<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> fd<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">recv_cb<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> fd<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">send_cb<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> fd<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">int<\/span> epfd <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span>           <span class=\"token comment\">\/\/epoll \u5b9e\u4f8b\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26<\/span><br \/>\n<span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">timeval<\/span> begin<span class=\"token punctuation\">;<\/span>   <span class=\"token comment\">\/\/\u4ee5 fd \u4e3a\u4e0b\u6807\u7684\u8fde\u63a5\u6570\u7ec4&#xff0c;\u7528\u4e8e\u5feb\u901f\u67e5\u627e\u8fde\u63a5\u4fe1\u606f<\/span><\/p>\n<p><span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">conn<\/span> conn_list<span class=\"token punctuation\">[<\/span>CONNECTION_SIZE<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> <span class=\"token comment\">\/\/conn\u7ed3\u6784\u4f53 \u7528\u6765\u63cf\u8ff0\u6bcf\u4e2afd\u8fde\u63a5\u7684\u72b6\u6001<\/span><\/p>\n<p><span class=\"token comment\">\/*<br \/>\n\u529f\u80fd&#xff1a;\u5411 epoll \u5b9e\u4f8b\u4e2d\u6dfb\u52a0\u6216\u4fee\u6539\u4e8b\u4ef6<br \/>\n\/\/\u6839\u636e flag \u7684\u503c&#xff0c;\u51b3\u5b9a\u662f\u6dfb\u52a0\u4e8b\u4ef6&#xff08;EPOLL_CTL_ADD&#xff09;\u8fd8\u662f\u4fee\u6539\u4e8b\u4ef6&#xff08;EPOLL_CTL_MOD&#xff09;<br \/>\n\/\/\u901a\u8fc7 epoll_ctl \u7cfb\u7edf\u8c03\u7528\u4e0e epoll \u6587\u4ef6\u63cf\u8ff0\u7b26 epfd \u4ea4\u4e92\u6765\u7ba1\u7406\u4e8b\u4ef6<br \/>\n*\/<\/span><br \/>\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">set_event<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> fd<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">int<\/span> event<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">int<\/span> flag<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token comment\">\/\/\u662f\u5426\u4e3a\u6dfb\u52a0\u4e8b\u4ef6&#xff08;\u975e\u96f6\u4e3a\u6dfb\u52a0&#xff0c;\u96f6\u4e3a\u4fee\u6539&#xff09;<\/span><br \/>\n<span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>flag<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>  <span class=\"token comment\">\/\/ non-zero add<\/span><\/p>\n<p><span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">epoll_event<\/span> ev<span class=\"token punctuation\">;<\/span><br \/>\nev<span class=\"token punctuation\">.<\/span>events <span class=\"token operator\">&#061;<\/span> event<span class=\"token punctuation\">;<\/span><br \/>\nev<span class=\"token punctuation\">.<\/span>data<span class=\"token punctuation\">.<\/span>fd <span class=\"token operator\">&#061;<\/span> fd<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">epoll_ctl<\/span><span class=\"token punctuation\">(<\/span>epfd<span class=\"token punctuation\">,<\/span> EPOLL_CTL_ADD<span class=\"token punctuation\">,<\/span> fd<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>ev<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">else<\/span> <span class=\"token punctuation\">{<\/span>  <span class=\"token comment\">\/\/ zero mod<\/span><\/p>\n<p><span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">epoll_event<\/span> ev<span class=\"token punctuation\">;<\/span><br \/>\nev<span class=\"token punctuation\">.<\/span>events <span class=\"token operator\">&#061;<\/span> event<span class=\"token punctuation\">;<\/span><br \/>\nev<span class=\"token punctuation\">.<\/span>data<span class=\"token punctuation\">.<\/span>fd <span class=\"token operator\">&#061;<\/span> fd<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">epoll_ctl<\/span><span class=\"token punctuation\">(<\/span>epfd<span class=\"token punctuation\">,<\/span> EPOLL_CTL_MOD<span class=\"token punctuation\">,<\/span> fd<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>ev<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/*<br \/>\n\u529f\u80fd&#xff1a;\u6ce8\u518c\u4e00\u4e2a\u65b0\u8fde\u63a5&#xff0c;\u521d\u59cb\u5316\u8fde\u63a5\u4fe1\u606f\u5e76\u6dfb\u52a0\u5230 epoll \u76d1\u542c<br \/>\n\/\/ event_register \u51fd\u6570\u7528\u4e8e\u4e3a\u4e00\u4e2a\u8fde\u63a5&#xff08;fd&#xff09;\u6ce8\u518c\u4e8b\u4ef6\u5e76\u521d\u59cb\u5316\u8fde\u63a5\u7684\u72b6\u6001(\u5c31\u662f\u6ce8\u518cclientfd)\u3002<br \/>\n\/\/ \u5b83\u8bbe\u7f6e\u63a5\u6536\u56de\u8c03\u51fd\u6570\u3001\u53d1\u9001\u56de\u8c03\u51fd\u6570&#xff0c;\u4ee5\u53ca\u8fde\u63a5\u7684\u8bfb\u53d6\u548c\u5199\u5165\u7f13\u51b2\u533a<br \/>\n*\/<\/span><br \/>\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">event_register<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> fd<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">int<\/span> event<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p><span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>fd <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">return<\/span> <span class=\"token operator\">&#8211;<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>conn_list<span class=\"token punctuation\">[<\/span>fd<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>fd <span class=\"token operator\">&#061;<\/span> fd<span class=\"token punctuation\">;<\/span><br \/>\nconn_list<span class=\"token punctuation\">[<\/span>fd<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>r_action<span class=\"token punctuation\">.<\/span>recv_callback <span class=\"token operator\">&#061;<\/span> recv_cb<span class=\"token punctuation\">;<\/span><br \/>\nconn_list<span class=\"token punctuation\">[<\/span>fd<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>send_callback <span class=\"token operator\">&#061;<\/span> send_cb<span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/memset\u5efa\u7acbbuffer\u7f13\u51b2\u533a\u7a7a\u95f4&#xff0c;\u7528\u4e8e\u6570\u636e\u901a\u4fe1<\/span><br \/>\n<span class=\"token function\">memset<\/span><span class=\"token punctuation\">(<\/span>conn_list<span class=\"token punctuation\">[<\/span>fd<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>rbuffer<span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> BUFFER_LENGTH<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\nconn_list<span class=\"token punctuation\">[<\/span>fd<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>rlength <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token function\">memset<\/span><span class=\"token punctuation\">(<\/span>conn_list<span class=\"token punctuation\">[<\/span>fd<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>wbuffer<span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> BUFFER_LENGTH<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\nconn_list<span class=\"token punctuation\">[<\/span>fd<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>wlength <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token function\">set_event<\/span><span class=\"token punctuation\">(<\/span>fd<span class=\"token punctuation\">,<\/span> event<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 punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/*<br \/>\n\u529f\u80fd&#xff1a;\u63a5\u53d7\u65b0\u8fde\u63a5&#xff0c;\u5e76\u6ce8\u518c\u5230 epoll \u76d1\u542c\u3002<br \/>\n\/\/ \u89e6\u53d1\u6761\u4ef6&#xff1a;\u76d1\u542c socket \u4e0a\u6709\u65b0\u8fde\u63a5&#xff08;EPOLLIN \u4e8b\u4ef6&#xff09;<br \/>\n\/\/ listenfd(sockfd) &#8211;&gt; EPOLLIN &#8211;&gt; accept_cb<\/p>\n<p>\u8c03\u7528 accept \u51fd\u6570\u63a5\u53d7\u8fde\u63a5&#xff0c;\u8fd4\u56de\u5ba2\u6237\u7aef\u7684\u5957\u63a5\u5b57 clientfd<br \/>\n\u6ce8\u518c clientfd \u7684\u4e8b\u4ef6&#xff08;\u76d1\u542c EPOLLIN&#xff09;<br \/>\n\u6253\u5370\u6bcf\u6b21\u63a5\u53d7\u8fde\u63a5\u6240\u82b1\u8d39\u7684\u65f6\u95f4<br \/>\n*\/<\/span><br \/>\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">accept_cb<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> fd<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p><span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">sockaddr_in<\/span>  clientaddr<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token class-name\">socklen_t<\/span> len <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">sizeof<\/span><span class=\"token punctuation\">(<\/span>clientaddr<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">int<\/span> clientfd <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">accept<\/span><span class=\"token punctuation\">(<\/span>fd<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>clientaddr<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>len<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/printf(&#034;accept finshed: %d\\\\n&#034;, clientfd);<\/span><br \/>\n<span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>clientfd <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\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;accept errno: %d &#8211;&gt; %s\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> errno<span class=\"token punctuation\">,<\/span> <span class=\"token function\">strerror<\/span><span class=\"token punctuation\">(<\/span>errno<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 operator\">&#8211;<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token function\">event_register<\/span><span class=\"token punctuation\">(<\/span>clientfd<span class=\"token punctuation\">,<\/span> EPOLLIN<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ | EPOLLET<\/span><\/p>\n<p><span class=\"token comment\">\/\/\u8ba1\u7b97client\u8fde\u63a5\u8017\u65f6<\/span><br \/>\n<span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span>clientfd <span class=\"token operator\">%<\/span> <span class=\"token number\">1000<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p><span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">timeval<\/span> current<span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/\u5185\u6838\u81ea\u5e26time API<\/span><br \/>\n<span class=\"token function\">gettimeofday<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>current<span class=\"token punctuation\">,<\/span> <span class=\"token constant\">NULL<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">int<\/span> time_used <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">TIME_SUB_MS<\/span><span class=\"token punctuation\">(<\/span>current<span class=\"token punctuation\">,<\/span> begin<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">memcpy<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>begin<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>current<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">sizeof<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">timeval<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;accept finshed: %d, time_used: %d\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> clientfd<span class=\"token punctuation\">,<\/span> time_used<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/*<br \/>\n\u529f\u80fd&#xff1a;\u63a5\u6536\u5ba2\u6237\u7aef\u6570\u636e&#xff0c;\u5e76\u51c6\u5907\u56de\u663e<br \/>\n\/\/ \u89e6\u53d1\u6761\u4ef6&#xff1a;\u5ba2\u6237\u7aef socket \u4e0a\u6709\u6570\u636e\u53ef\u8bfb&#xff08;EPOLLIN \u4e8b\u4ef6&#xff09;<\/p>\n<p>\u8bfb\u53d6\u6570\u636e\u5230 rbuffer&#xff0c;\u5982\u679c\u8bfb\u53d6\u5931\u8d25\u6216\u5ba2\u6237\u7aef\u65ad\u5f00\u8fde\u63a5&#xff0c;\u5219\u5173\u95ed\u8fde\u63a5<br \/>\n\u5c06\u63a5\u6536\u5230\u7684\u6570\u636e\u590d\u5236\u5230 wbuffer&#xff0c;\u51c6\u5907\u53d1\u9001<br \/>\n\u8bbe\u7f6e EPOLLOUT \u4e8b\u4ef6&#xff0c;\u4ee5\u4fbf\u5728\u4e0b\u4e00\u4e2a\u4e8b\u4ef6\u5faa\u73af\u4e2d\u5904\u7406\u6570\u636e\u53d1\u9001&#xff08;\u5173\u6ce8\u5199\u4e8b\u4ef6&#xff09;<br \/>\n*\/<\/span><br \/>\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">recv_cb<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> fd<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p><span class=\"token function\">memset<\/span><span class=\"token punctuation\">(<\/span>conn_list<span class=\"token punctuation\">[<\/span>fd<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>rbuffer<span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> BUFFER_LENGTH <span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">int<\/span> count <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">recv<\/span><span class=\"token punctuation\">(<\/span>fd<span class=\"token punctuation\">,<\/span> conn_list<span class=\"token punctuation\">[<\/span>fd<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>rbuffer<span class=\"token punctuation\">,<\/span> BUFFER_LENGTH<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>count <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token comment\">\/\/ disconnect \u5ba2\u6237\u7aef\u65ad\u5f00\u8fde\u63a5<\/span><br \/>\n<span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;client disconnect: %d\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> fd<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">close<\/span><span class=\"token punctuation\">(<\/span>fd<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token function\">epoll_ctl<\/span><span class=\"token punctuation\">(<\/span>epfd<span class=\"token punctuation\">,<\/span> EPOLL_CTL_DEL<span class=\"token punctuation\">,<\/span> fd<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\">\/\/ unfinished<\/span><\/p>\n<p><span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">else<\/span> <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>count <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 comment\">\/\/ \u63a5\u53d7\u9519\u8bef<\/span><\/p>\n<p><span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;count: %d, errno: %d, %s\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> count<span class=\"token punctuation\">,<\/span> errno<span class=\"token punctuation\">,<\/span> <span class=\"token function\">strerror<\/span><span class=\"token punctuation\">(<\/span>errno<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">close<\/span><span class=\"token punctuation\">(<\/span>fd<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">epoll_ctl<\/span><span class=\"token punctuation\">(<\/span>epfd<span class=\"token punctuation\">,<\/span> EPOLL_CTL_DEL<span class=\"token punctuation\">,<\/span> fd<span class=\"token punctuation\">,<\/span> <span class=\"token constant\">NULL<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>conn_list<span class=\"token punctuation\">[<\/span>fd<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>rlength <span class=\"token operator\">&#061;<\/span> count<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/printf(&#034;RECV: %s\\\\n&#034;, conn_list[fd].rbuffer);<\/span><\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">if<\/span> <span class=\"token expression\"><span class=\"token number\">0<\/span> <\/span><span class=\"token comment\">\/\/ echo\u56de\u663e\u6570\u636e<\/span><\/span><\/p>\n<p>conn_list<span class=\"token punctuation\">[<\/span>fd<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>wlength <span class=\"token operator\">&#061;<\/span> conn_list<span class=\"token punctuation\">[<\/span>fd<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>rlength<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">memcpy<\/span><span class=\"token punctuation\">(<\/span>conn_list<span class=\"token punctuation\">[<\/span>fd<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>wbuffer<span class=\"token punctuation\">,<\/span> conn_list<span class=\"token punctuation\">[<\/span>fd<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>rbuffer<span class=\"token punctuation\">,<\/span> conn_list<span class=\"token punctuation\">[<\/span>fd<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>wlength<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;[%d]RECV: %s\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> conn_list<span class=\"token punctuation\">[<\/span>fd<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>rlength<span class=\"token punctuation\">,<\/span> conn_list<span class=\"token punctuation\">[<\/span>fd<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>rbuffer<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">elif<\/span> <span class=\"token expression\"><span class=\"token number\">1<\/span><\/span><\/span><br \/>\n<span class=\"token function\">http_request<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>conn_list<span class=\"token punctuation\">[<\/span>fd<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">else<\/span><\/span><br \/>\n<span class=\"token function\">ws_request<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>conn_list<span class=\"token punctuation\">[<\/span>fd<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">endif<\/span><\/span><br \/>\n<span class=\"token function\">set_event<\/span><span class=\"token punctuation\">(<\/span>fd<span class=\"token punctuation\">,<\/span> EPOLLOUT<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\">\/\/\u4fee\u6539\u4e3a\u76d1\u542c\u5199\u4e8b\u4ef6<\/span><\/p>\n<p><span class=\"token keyword\">return<\/span> count<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u529f\u80fd&#xff1a;\u53d1\u9001\u6570\u636e\u7ed9\u5ba2\u6237\u7aef<\/span><br \/>\n<span class=\"token comment\">\/\/ \u89e6\u53d1\u6761\u4ef6&#xff1a;\u5ba2\u6237\u7aef socket \u53ef\u5199&#xff08;EPOLLOUT \u4e8b\u4ef6&#xff09;<\/span><br \/>\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">send_cb<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> fd<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">if<\/span> <span class=\"token expression\"><span class=\"token number\">1<\/span><\/span><\/span><br \/>\n<span class=\"token function\">http_response<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>conn_list<span class=\"token punctuation\">[<\/span>fd<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">else<\/span><\/span><br \/>\n<span class=\"token function\">ws_response<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>conn_list<span class=\"token punctuation\">[<\/span>fd<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">endif<\/span><\/span><br \/>\n<span class=\"token keyword\">int<\/span> count <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">if<\/span> <span class=\"token expression\"><span class=\"token number\">0<\/span><\/span><\/span><br \/>\n<span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>conn_list<span class=\"token punctuation\">[<\/span>fd<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>status <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token comment\">\/\/printf(&#034;SEND: %s\\\\n&#034;, conn_list[fd].wbuffer);<\/span><br \/>\ncount <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">send<\/span><span class=\"token punctuation\">(<\/span>fd<span class=\"token punctuation\">,<\/span> conn_list<span class=\"token punctuation\">[<\/span>fd<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>wbuffer<span class=\"token punctuation\">,<\/span> conn_list<span class=\"token punctuation\">[<\/span>fd<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>wlength<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\">set_event<\/span><span class=\"token punctuation\">(<\/span>fd<span class=\"token punctuation\">,<\/span> EPOLLOUT<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 keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>conn_list<span class=\"token punctuation\">[<\/span>fd<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>status <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">2<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token function\">set_event<\/span><span class=\"token punctuation\">(<\/span>fd<span class=\"token punctuation\">,<\/span> EPOLLOUT<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 keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>conn_list<span class=\"token punctuation\">[<\/span>fd<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>status <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">0<\/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>conn_list<span class=\"token punctuation\">[<\/span>fd<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>wlength <span class=\"token operator\">!&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\ncount <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">send<\/span><span class=\"token punctuation\">(<\/span>fd<span class=\"token punctuation\">,<\/span> conn_list<span class=\"token punctuation\">[<\/span>fd<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>wbuffer<span class=\"token punctuation\">,<\/span> conn_list<span class=\"token punctuation\">[<\/span>fd<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>wlength<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><\/p>\n<p><span class=\"token function\">set_event<\/span><span class=\"token punctuation\">(<\/span>fd<span class=\"token punctuation\">,<\/span> EPOLLIN<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 macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">else<\/span><\/span><\/p>\n<p><span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>conn_list<span class=\"token punctuation\">[<\/span>fd<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>wlength <span class=\"token operator\">!&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\ncount <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">send<\/span><span class=\"token punctuation\">(<\/span>fd<span class=\"token punctuation\">,<\/span> conn_list<span class=\"token punctuation\">[<\/span>fd<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>wbuffer<span class=\"token punctuation\">,<\/span> conn_list<span class=\"token punctuation\">[<\/span>fd<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>wlength<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><\/p>\n<p><span class=\"token function\">set_event<\/span><span class=\"token punctuation\">(<\/span>fd<span class=\"token punctuation\">,<\/span> EPOLLIN<span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">endif<\/span><\/span><br \/>\n<span class=\"token comment\">\/\/set_event(fd, EPOLLOUT, 0);<\/span><br \/>\n<span class=\"token keyword\">return<\/span> count<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/*<br \/>\n\u529f\u80fd&#xff1a;\u521d\u59cb\u5316\u670d\u52a1\u5668&#xff0c;\u521b\u5efa\u76d1\u542c socket<br \/>\n\/\/ 1.\u521b\u5efa\u4e00\u4e2a TCP \u5957\u63a5\u5b57<br \/>\n\/\/ 2.\u5c06\u670d\u52a1\u5668\u7ed1\u5b9a\u5230\u6307\u5b9a\u7aef\u53e3<br \/>\n\/\/ 3.\u5f00\u59cb\u76d1\u542c\u8fde\u63a5<br \/>\n*\/<\/span><br \/>\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">init_server<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">unsigned<\/span> <span class=\"token keyword\">short<\/span> port<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p><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><\/p>\n<p><span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">sockaddr_in<\/span> servaddr<span class=\"token punctuation\">;<\/span><br \/>\nservaddr<span class=\"token punctuation\">.<\/span>sin_family <span class=\"token operator\">&#061;<\/span> AF_INET<span class=\"token punctuation\">;<\/span><br \/>\nservaddr<span class=\"token punctuation\">.<\/span>sin_addr<span class=\"token punctuation\">.<\/span>s_addr <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">htonl<\/span><span class=\"token punctuation\">(<\/span>INADDR_ANY<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ 0.0.0.0<\/span><br \/>\nservaddr<span class=\"token punctuation\">.<\/span>sin_port <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">htons<\/span><span class=\"token punctuation\">(<\/span>port<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ 0-1023, <\/span><\/p>\n<p><span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">&#8211;<\/span><span class=\"token number\">1<\/span> <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token function\">bind<\/span><span class=\"token punctuation\">(<\/span>sockfd<span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">sockaddr<\/span><span class=\"token operator\">*<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">&amp;<\/span>servaddr<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">sizeof<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">sockaddr<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;bind failed: %s\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token function\">strerror<\/span><span class=\"token punctuation\">(<\/span>errno<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token function\">listen<\/span><span class=\"token punctuation\">(<\/span>sockfd<span class=\"token punctuation\">,<\/span> <span class=\"token number\">10<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/printf(&#034;listen finshed: %d\\\\n&#034;, sockfd); \/\/ 3 <\/span><\/p>\n<p><span class=\"token keyword\">return<\/span> sockfd<span class=\"token punctuation\">;<\/span><\/p>\n<p><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><\/p>\n<p><span class=\"token keyword\">unsigned<\/span> <span class=\"token keyword\">short<\/span> port <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">2000<\/span><span class=\"token punctuation\">;<\/span><br \/>\nepfd <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">epoll_create<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/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> MAX_PORTS<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<span class=\"token comment\">\/\/\u521d\u59cb\u5316\u670d\u52a1\u7aef<\/span><br \/>\n<span class=\"token keyword\">int<\/span> sockfd <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">init_server<\/span><span class=\"token punctuation\">(<\/span>port <span class=\"token operator\">&#043;<\/span> i<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/\u96c6\u5408\u961f\u5217\u6ce8\u518cserver\u7aef\u53e3\u4fe1\u606f<\/span><br \/>\nconn_list<span class=\"token punctuation\">[<\/span>sockfd<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>fd <span class=\"token operator\">&#061;<\/span> sockfd<span class=\"token punctuation\">;<\/span><br \/>\nconn_list<span class=\"token punctuation\">[<\/span>sockfd<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>r_action<span class=\"token punctuation\">.<\/span>recv_callback <span class=\"token operator\">&#061;<\/span> accept_cb<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/\u5411epoll\u5b9e\u4f8b\u4e2d\u64cd\u4f5c\u4e8b\u4ef6<\/span><br \/>\n<span class=\"token function\">set_event<\/span><span class=\"token punctuation\">(<\/span>sockfd<span class=\"token punctuation\">,<\/span> EPOLLIN<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 punctuation\">}<\/span><\/p>\n<p><span class=\"token function\">gettimeofday<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>begin<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\">\/\/\u8ba1\u7b97\u7aef\u53e3\u8fde\u63a5\u65f6\u957f<\/span><\/p>\n<p><span class=\"token comment\">\/\/\u4e8b\u4ef6\u5faa\u73af<\/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> <span class=\"token comment\">\/\/ mainloop<\/span><\/p>\n<p><span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">epoll_event<\/span> events<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 keyword\">int<\/span> nready <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">epoll_wait<\/span><span class=\"token punctuation\">(<\/span>epfd<span class=\"token punctuation\">,<\/span> events<span class=\"token punctuation\">,<\/span> <span class=\"token number\">1024<\/span><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><\/p>\n<p><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/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> nready<span class=\"token punctuation\">;<\/span>i <span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p><span class=\"token keyword\">int<\/span> connfd <span class=\"token operator\">&#061;<\/span> events<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>data<span class=\"token punctuation\">.<\/span>fd<span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">if<\/span> <span class=\"token expression\"><span class=\"token number\">0<\/span><\/span><\/span><br \/>\n<span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>events<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>events <span class=\"token operator\">&amp;<\/span> EPOLLIN<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\nconn_list<span class=\"token punctuation\">[<\/span>connfd<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>r_action<span class=\"token punctuation\">.<\/span><span class=\"token function\">recv_callback<\/span><span class=\"token punctuation\">(<\/span>connfd<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 keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>events<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>events <span class=\"token operator\">&amp;<\/span> EPOLLOUT<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\nconn_list<span class=\"token punctuation\">[<\/span>connfd<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">send_callback<\/span><span class=\"token punctuation\">(<\/span>connfd<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">else<\/span> <\/span><br \/>\n<span class=\"token comment\">\/\/for\u5faa\u73af\u91cc\u9009\u62e9\u91c7\u7528\u53ccif\u800c\u4e0d\u662fif-else <\/span><br \/>\n<span class=\"token comment\">\/\/\u662f\u56e0\u4e3a\u53ccif\u53ef\u4ee5\u505a\u5230&#xff1a;\u4e00\u4e2a\u5faa\u73af\u91cc&#xff0c;io\u5904\u7406\u4e24\u4e2a\u4e0d\u540c\u7684\u56de\u8c03\u51fd\u6570(\u8bfb\u548c\u5199\u4e8b\u4ef6\u5bf9\u5e94\u7684\u56de\u8c03\u51fd\u6570)<\/span><\/p>\n<p><span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>events<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>events <span class=\"token operator\">&amp;<\/span> EPOLLIN<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\nconn_list<span class=\"token punctuation\">[<\/span>connfd<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>r_action<span class=\"token punctuation\">.<\/span><span class=\"token function\">recv_callback<\/span><span class=\"token punctuation\">(<\/span>connfd<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span> <\/p>\n<p><span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>events<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>events <span class=\"token operator\">&amp;<\/span> EPOLLOUT<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\nconn_list<span class=\"token punctuation\">[<\/span>connfd<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">send_callback<\/span><span class=\"token punctuation\">(<\/span>connfd<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">endif<\/span><\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<hr \/>\n<h3>\u6838\u5fc3\u601d\u60f3<\/h3>\n<ul>\n<li>Reactor\u6a21\u5f0f&#xff1a;\u901a\u8fc7\u4e8b\u4ef6\u9a71\u52a8\u7684\u65b9\u5f0f\u7ba1\u7406 I\/O \u64cd\u4f5c&#xff0c;\u907f\u514d\u963b\u585e\u7ebf\u7a0b<\/li>\n<li>epoll\u6846\u67b6&#xff1a;Linux \u63d0\u4f9b\u7684\u9ad8\u6548 I\/O \u591a\u8def\u590d\u7528\u673a\u5236&#xff0c;\u7528\u4e8e\u76d1\u542c\u6587\u4ef6\u63cf\u8ff0\u7b26&#xff08;fd&#xff09;\u4e0a\u7684\u4e8b\u4ef6<\/li>\n<li>callback\u56de\u8c03\u51fd\u6570&#xff1a;\u6bcf\u4e2a fd \u7684\u4e8b\u4ef6\u89e6\u53d1\u65f6&#xff0c;\u8c03\u7528\u5bf9\u5e94\u7684\u56de\u8c03\u51fd\u6570&#xff08;\u5982 accept_cb\u3001recv_cb\u3001send_cb&#xff09;\u5904\u7406<\/li>\n<\/ul>\n<hr \/>\n<h3>\u5de5\u4f5c\u6d41\u7a0b<\/h3>\n<li>\n<p>\u4e8b\u4ef6\u6ce8\u518c: \u5c06\u611f\u5174\u8da3\u7684\u4e8b\u4ef6&#xff08;\u5982\u53ef\u8bfb\u3001\u53ef\u5199&#xff09;\u6ce8\u518c\u5230epoll&#xff0c;\u5e76\u4e3a\u6bcf\u4e2a\u4e8b\u4ef6\u7ed1\u5b9a\u5bf9\u5e94\u7684\u56de\u8c03\u51fd\u6570. \u5728\u8fd9\u91cc\u4f7f\u7528\u4e86\u4e00\u4e2a\u5faa\u73af\u5f00\u8f9f20\u4e2a\u7aef\u53e3&#xff0c;\u56e0\u4e3a\u4e00\u4e2a\u7aef\u53e3\u5efa\u7acb\u7684\u8fde\u63a5\u6570\u91cf\u6700\u5927\u662f65536-1024&#xff0c;\u8fd9\u91cc\u8bbe\u7f6e\u597dfd\u548c\u56de\u8c03\u51fd\u6570\u540e\u7528set__event\u63a5\u53e3\u8c03\u7528epoll<\/p>\n<p> <span class=\"token keyword\">int<\/span> i <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">for<\/span><span class=\"token punctuation\">(<\/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> MAX_PORT <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    <span class=\"token keyword\">int<\/span> sockfd <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">init_server<\/span><span class=\"token punctuation\">(<\/span>port <span class=\"token operator\">&#043;<\/span> i<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    conn_list<span class=\"token punctuation\">[<\/span>sockfd<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>fd <span class=\"token operator\">&#061;<\/span> sockfd<span class=\"token punctuation\">;<\/span><br \/>\n    conn_list<span class=\"token punctuation\">[<\/span>sockfd<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>recv_action<span class=\"token punctuation\">.<\/span>recv_callback <span class=\"token operator\">&#061;<\/span> accept_cb<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">set_event<\/span><span class=\"token punctuation\">(<\/span>sockfd<span class=\"token punctuation\">,<\/span> EPOLLIN<span class=\"token punctuation\">,<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u5173\u6ce8\u53ef\u8bfb\u4e8b\u4ef6<\/span><br \/>\n<span class=\"token punctuation\">}<\/span>\n <\/li>\n<li>\n<p>\u4e8b\u4ef6\u76d1\u542c:Reactor \u8c03\u7528epoll_wait\u7b49\u5f85\u4e8b\u4ef6\u53d1\u751f\u3002\u8fd9\u4e00\u6b65\u662f\u963b\u585e\u7684&#xff0c;\u4f46\u4e0d\u4f1a\u963b\u585e\u6574\u4e2a\u7a0b\u5e8f&#xff0c;\u53ea\u963b\u585e\u7b49\u5f85\u4e8b\u4ef6\u7684\u7ebf\u7a0b\u3002<\/p>\n<p> <span class=\"token comment\">\/\/mainloop<\/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\">struct<\/span> <span class=\"token class-name\">epoll_event<\/span> events<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 keyword\">int<\/span> nready <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">epoll_wait<\/span><span class=\"token punctuation\">(<\/span>epfd<span class=\"token punctuation\">,<\/span> events<span class=\"token punctuation\">,<\/span> <span class=\"token number\">1024<\/span><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 punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><br \/>\n<span class=\"token punctuation\">}<\/span>\n <\/li>\n<li>\n<p>\u4e8b\u4ef6\u89e6\u53d1:\u5f53\u67d0\u4e2a\u4e8b\u4ef6\u5c31\u7eea\u65f6&#xff0c;epoll_wait\u8fd4\u56de\u5c31\u7eea\u4e8b\u4ef6\u5217\u8868<\/p>\n<\/li>\n<li>\n<p>\u4e8b\u4ef6\u5206\u53d1:Reactor \u904d\u5386\u5c31\u7eea\u4e8b\u4ef6\u5217\u8868&#xff0c;\u6839\u636e\u4e8b\u4ef6\u7c7b\u578b\u8c03\u7528\u5bf9\u5e94\u7684\u56de\u8c03\u51fd\u6570<\/p>\n<p> <span class=\"token keyword\">for<\/span>\u5faa\u73af\u91cc\u9009\u62e9\u91c7\u7528\u53cc<span class=\"token keyword\">if<\/span>\u800c\u4e0d\u662f<span class=\"token keyword\">if<\/span><span class=\"token operator\">&#8211;<\/span><span class=\"token keyword\">else<\/span> <span class=\"token operator\">&#061;&#061;<\/span><span class=\"token operator\">&gt;<\/span> \u4fdd\u8bc1recv\u548csend\u90fd\u53ef\u4ee5\u88ab\u6b63\u786e\u5904\u7406<br \/>\n\u662f\u56e0\u4e3a\u53cc<span class=\"token keyword\">if<\/span>\u53ef\u4ee5\u505a\u5230&#xff1a;\u4e00\u4e2a\u5faa\u73af\u91cc&#xff0c;io\u5904\u7406\u4e24\u4e2a\u4e0d\u540c\u7684\u56de\u8c03\u51fd\u6570<span class=\"token punctuation\">(<\/span>\u8bfb\u548c\u5199\u4e8b\u4ef6\u5bf9\u5e94\u7684\u56de\u8c03\u51fd\u6570<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>events<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>events <span class=\"token operator\">&amp;<\/span> EPOLLIN<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\nconn_list<span class=\"token punctuation\">[<\/span>connfd<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>r_action<span class=\"token punctuation\">.<\/span><span class=\"token function\">recv_callback<\/span><span class=\"token punctuation\">(<\/span>connfd<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>events<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>events <span class=\"token operator\">&amp;<\/span> EPOLLOUT<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\nconn_list<span class=\"token punctuation\">[<\/span>connfd<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">send_callback<\/span><span class=\"token punctuation\">(<\/span>connfd<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span>\n <\/li>\n<li>\n<p>\u4e8b\u4ef6\u5904\u7406: \u56de\u8c03\u51fd\u6570\u5904\u7406\u4e8b\u4ef6&#xff0c; eg:\u8c03\u7528send\u53d1\u9001\u6570\u636e; \u6570\u636e\u63a5\u6536\u8c03\u7528recv\u8bfb\u53d6\u6570\u636e; \u65b0\u8fde\u63a5\u8c03\u7528 accept\u63a5\u6536\u8fde\u63a5<\/p>\n<\/li>\n<p>\u5728Reactor\u6a21\u578b\u4e2d&#xff0c;\u4e3b\u7ebf\u7a0b\u8d1f\u8d23\u63a5\u6536\u65b0\u7684\u8fde\u63a5\u8bf7\u6c42&#xff0c;\u5e76\u5c06\u5b83\u4eec\u8f6c\u53d1\u7ed9\u4e0d\u540c\u7684\u5904\u7406\u7a0b\u5e8f\u5904\u7406&#xff0c;\u800c\u4e0d\u662f\u5728\u4e3b\u7ebf\u7a0b\u4e2d\u76f4\u63a5\u5904\u7406\u8fd9\u4e9b\u8bf7\u6c42\u3002\u5176\u4e2d\u5fc3\u601d\u60f3\u662f\u5c06\u6240\u6709\u8981\u5904\u7406\u7684IO\u4e8b\u4ef6\u6ce8\u518c\u5230\u4e00\u4e2a\u4e2d\u5fc3IO\u591a\u8def\u590d\u7528\u5668\u4e0a&#xff0c;\u540c\u65f6\u4e3b\u7ebf\u7a0b\/\u8fdb\u7a0b\u963b\u585e\u5728\u591a\u8def\u590d\u7528\u5668\u4e0a<\/p>\n<hr \/>\n<h4>\u6267\u884c\u6307\u4ee4<\/h4>\n<p>client\u6e90\u7801<span class=\"token operator\">:<\/span> mul_port_client_epoll<span class=\"token punctuation\">.<\/span>c<br \/>\nserver\u6e90\u7801<span class=\"token operator\">:<\/span> reactor<span class=\"token punctuation\">.<\/span>c<\/p>\n<p><span class=\"token comment\">\/\/\u7f16\u8bd1<\/span><br \/>\n$ gcc <span class=\"token operator\">&#8211;<\/span>o reactor reactor<span class=\"token punctuation\">.<\/span>c <span class=\"token operator\">&#8211;<\/span>mcmodel<span class=\"token operator\">&#061;<\/span>medium<br \/>\n$ gcc <span class=\"token operator\">&#8211;<\/span>o mul_port_client_epoll mul_port_client_epoll<span class=\"token punctuation\">.<\/span>c <span class=\"token operator\">&#8211;<\/span>mcmodel<span class=\"token operator\">&#061;<\/span>medium<br \/>\n<span class=\"token comment\">\/\/\u8fd0\u884c<\/span><br \/>\n$ <span class=\"token punctuation\">.<\/span><span class=\"token operator\">\/<\/span>mul_port_client_epoll <span class=\"token punctuation\">[<\/span>ip\u5730\u5740<span class=\"token punctuation\">]<\/span> <span class=\"token punctuation\">[<\/span>\u7aef\u53e3\u53f7<span class=\"token number\">2000<\/span><span class=\"token punctuation\">]<\/span><\/p>\n<p><span class=\"token comment\">\/\/\u4ee3\u7801\u8fd0\u884c\u6d41\u7a0b<\/span><br \/>\n<span class=\"token number\">1.<\/span>\u521d\u59cb\u5316\u670d\u52a1\u5668&#xff0c;\u521b\u5efa\u76d1\u542c socket<br \/>\n<span class=\"token number\">2.<\/span>\u5c06\u76d1\u542c socket \u6ce8\u518c\u5230 epoll&#xff0c;\u76d1\u542c EPOLLIN \u4e8b\u4ef6<br \/>\n<span class=\"token number\">3.<\/span>\u8fdb\u5165\u4e8b\u4ef6\u5faa\u73af&#xff0c;\u8c03\u7528 epoll_wait \u7b49\u5f85\u4e8b\u4ef6<br \/>\n<span class=\"token number\">4.<\/span>\u5f53\u6709\u65b0\u8fde\u63a5\u65f6&#xff0c;\u89e6\u53d1 accept_cb&#xff0c;\u63a5\u53d7\u8fde\u63a5\u5e76\u6ce8\u518c\u5230 epoll\u3002<br \/>\n<span class=\"token number\">5.<\/span>\u5f53\u5ba2\u6237\u7aef\u53d1\u9001\u6570\u636e\u65f6&#xff0c;\u89e6\u53d1 recv_cb&#xff0c;\u63a5\u6536\u6570\u636e\u5e76\u51c6\u5907\u56de\u663e<br \/>\n<span class=\"token number\">6.<\/span>\u5f53\u5ba2\u6237\u7aef\u53ef\u5199\u65f6&#xff0c;\u89e6\u53d1 send_cb&#xff0c;\u53d1\u9001\u6570\u636e<\/p>\n<p><span class=\"token comment\">\/\/main\u6267\u884c\u64cd\u4f5c&#xff1a;<\/span><br \/>\n<span class=\"token number\">1.<\/span>\u521b\u5efa\u4e00\u4e2a epoll \u5b9e\u4f8b<br \/>\n<span class=\"token number\">2.<\/span>\u4e3a\u591a\u4e2a\u7aef\u53e3&#xff08;port \u5230 port <span class=\"token operator\">&#043;<\/span> MAX_PORTS&#xff09;\u521d\u59cb\u5316\u670d\u52a1\u5668&#xff0c;\u5e76\u4e3a\u6bcf\u4e2a\u76d1\u542c\u5957\u63a5\u5b57\u6ce8\u518c EPOLLIN \u4e8b\u4ef6<br \/>\n<span class=\"token number\">3.<\/span>\u8fdb\u5165\u4e00\u4e2a\u65e0\u9650\u5faa\u73af&#xff0c;\u7b49\u5f85\u548c\u5904\u7406\u4e8b\u4ef6&#xff08;\u901a\u8fc7 epoll_wait&#xff09;<\/p>\n<p><span class=\"token comment\">\/\/\u601d\u8003&#xff1f;<\/span><br \/>\n<span class=\"token operator\">&#043;<\/span> \u6574\u96c6\u7528\u4ec0\u4e48\u6570\u636e\u7ed3\u6784\u5b58\u50a8<br \/>\n<span class=\"token operator\">&#043;<\/span> \u9009\u62e9\u4ec0\u4e48\u6570\u636e\u7ed3\u6784\u505a\u5c31\u7eea<\/p>\n<h4>BUG\u6574\u7406<\/h4>\n<p>\u56db\u3001\u5e38\u89c1\u95ee\u9898<\/p>\n<hr \/>\n<h2>\u4e09\u3001\u601d\u8003\u95ee\u9898<\/h2>\n<h3>1. \u76f8\u6bd4\u76f4\u63a5\u8c03\u7528epoll&#xff0c;reactor\u7684\u4f18\u52bf\u4f53\u73b0\u5728\u54ea?<\/h3>\n<h4>&#xff08;1&#xff09;epoll\u7684\u5c40\u9650<\/h4>\n<p>\u5982\u679c\u4e00\u6b21\u53d1\u9001\u7684\u6570\u636e\u91cf\u8f83\u5927&#xff0c;\u76f4\u63a5\u8c03\u7528epoll\u6548\u7387\u662f\u6bd4\u8f83\u4f4e\u7684&#xff0c;\u56e0\u4e3aepoll\u7684\u903b\u8f91\u4e0d\u9002\u5408\u5927\u5305\u4f20\u8f93\u6216\u8fde\u7eed\u4f20\u8f93\u3002 eg: epoll\u4f1a\u904d\u5386\u6bcf\u4e00\u4e2a\u5f53\u524d\u5c31\u7eea\u7684io&#xff0c;\u82e5\u4e00\u6b21\u53d1\u9001\u7684\u6570\u636e\u91cf\u8d85\u8fc7\u4e86char buffer[1024]\u7684\u4e0a\u9650&#xff0c;\u5219\u9700\u8981\u540e\u7eed\u63a5\u6536\u6570\u636e\u518d\u8fdb\u884c\u62fc\u63a5&#xff0c;\u4f7f\u5f97\u6548\u7387\u5927\u6253\u6298\u6263\u3002<\/p>\n<h4>&#xff08;2&#xff09;reactor\u7684\u4f18\u52bf<\/h4>\n<h5>1. \u7f13\u51b2\u533a\u7ba1\u7406<\/h5>\n<p>\u8fde\u7eed\u63a5\u6536\u548c\u53d1\u9001 | \u6570\u636e\u5b8c\u6574\u6027 \u6bcf\u4e2a\u8fde\u63a5&#xff08;\u901a\u8fc7 conn_list \u6570\u7ec4\u8fdb\u884c\u7ba1\u7406&#xff09;\u90fd\u6709\u72ec\u7acb\u7684 \u63a5\u6536\u7f13\u51b2\u533a\u548c \u53d1\u9001\u7f13\u51b2\u533a&#xff0c;\u6709\u6548\u907f\u514d\u6570\u636e\u4e22\u5931\u548c\u6df7\u4e71\u3002\u56e0\u6b64\u5f53\u591a\u4e2a\u8fde\u63a5\u540c\u65f6\u4f20\u8f93\u6570\u636e\u65f6&#xff0c;\u53ef\u4ee5\u72ec\u7acb\u7ba1\u7406\u6bcf\u4e2a\u8fde\u63a5\u7684\u901a\u4fe1&#xff0c;\u4e0d\u4e92\u76f8\u5f71\u54cd\u3002<\/p>\n<h5>2. \u56de\u8c03\u673a\u5236\u7684\u7075\u6d3b\u6027<\/h5>\n<p>RCALLBACK\u56de\u8c03\u673a\u5236\u4f7f\u5f97\u5728\u63a5\u6536\u5230\u8fde\u7eed\u6570\u636e\u65f6&#xff0c;\u7a0b\u5e8f\u80fd\u591f\u6839\u636e\u9700\u8981\u91c7\u53d6\u4e0d\u540c\u7684\u5904\u7406\u65b9\u5f0f\u3002<\/p>\n<ul>\n<li>eg1: \u53ef\u4ee5\u901a\u8fc7\u5224\u65ad\u6570\u636e\u7684\u957f\u5ea6len\u548c\u5185\u5bb9\u6765\u786e\u5b9a\u662f\u5426\u9700\u8981\u7b49\u5f85\u66f4\u591a\u7684\u6570\u636e&#xff0c;\u6216\u8005\u662f\u5426\u5df2\u7ecf\u63a5\u6536\u5230\u5b8c\u6574\u7684\u4e00\u6279\u6570\u636e\u3002\u8fd9\u5bf9\u4e8e\u5904\u7406\u8fde\u7eed\u7684\u6570\u636e\u6d41\u975e\u5e38\u6709\u7528&#xff0c;\u56e0\u4e3a\u6570\u636e\u53ef\u80fd\u5206\u6279\u5230\u8fbe&#xff0c;\u7a0b\u5e8f\u53ef\u4ee5\u5728\u6bcf\u6b21\u6570\u636e\u5230\u8fbe\u65f6\u51b3\u5b9a\u5982\u4f55\u5904\u7406.<\/li>\n<li>eg2: \u5982\u679c\u63a5\u6536\u5230\u7684\u6570\u636edata&gt;buffer\u5927\u5c0f&#xff0c;\u7a0b\u5e8f\u53ef\u4ee5\u5c06\u6570\u636e\u5206\u5272\u5e76\u6309\u987a\u5e8f\u5904\u7406&#xff0c;\u76f4\u5230\u6240\u6709\u6570\u636e\u5b8c\u5168\u63a5\u6536\u5b8c\u6bd5<\/li>\n<\/ul>\n<h5>3. \u72b6\u6001\u7ba1\u7406\u4e0e\u5904\u7406<\/h5>\n<p>\u901a\u8fc7 conn_list \u4e2d\u7684\u6bcf\u4e2a\u8fde\u63a5\u72b6\u6001\u6765\u7ba1\u7406\u7f13\u51b2\u533a\u7684\u8bfb\u5199\u4f4d\u7f6e&#xff0c;\u8fd9\u5bf9\u4e8e \u8fde\u7eed\u6570\u636e\u5904\u7406 \u662f\u975e\u5e38\u6709\u5e2e\u52a9\u7684\u3002\u901a\u8fc7\u52a8\u6001\u66f4\u65b0\u8fde\u63a5\u7684\u7f13\u51b2\u533a\u72b6\u6001&#xff08;\u4f8b\u5982 rlength \u548c wlength&#xff09;&#xff0c;\u7a0b\u5e8f\u53ef\u4ee5\u8ddf\u8e2a\u6bcf\u4e2a\u8fde\u63a5\u63a5\u6536\u548c\u53d1\u9001\u7684\u8fdb\u5ea6.<\/p>\n<h5>4. \u6613\u4e8e\u6269\u5c55<\/h5>\n<p>reactor\u6a21\u5f0f\u4f7f\u7528\u4e86\u7ed3\u6784\u4f53\u548c\u56de\u8c03\u51fd\u6570&#xff0c;\u56e0\u6b64\u53ef\u4ee5\u8f7b\u677e\u6269\u5c55\u652f\u6301 \u66f4\u590d\u6742\u7684\u8fde\u7eed\u6570\u636e\u4f20\u8f93\u903b\u8f91\u3002\u4f8b\u5982&#xff1a;<\/p>\n<p>&#043; \u589e\u52a0\u5bf9\u63a5\u6536\u5230\u6570\u636e\u7684\u5206\u7247\u5904\u7406\u673a\u5236&#xff0c;\u4ee5\u5e94\u5bf9\u5927\u6570\u636e\u7684\u8fde\u7eed\u4f20\u8f93\u3002<br \/>\n&#043; \u589e\u52a0\u5bf9\u6570\u636e\u6d41\u63a7\u5236\u548c\u901f\u7387\u9650\u5236\u7684\u652f\u6301&#xff0c;\u907f\u514d\u8fde\u7eed\u6570\u636e\u6d41\u8fc7\u5feb\u5bfc\u81f4\u7684\u5185\u5b58\u6ea2\u51fa\u6216\u6027\u80fd\u95ee\u9898\u3002<br \/>\n&#043; \u589e\u52a0\u5bf9\u5927\u6587\u4ef6\u4f20\u8f93\u7684\u652f\u6301&#xff0c;\u901a\u8fc7\u56de\u8c03\u673a\u5236\u5728\u63a5\u6536\u548c\u53d1\u9001\u65f6\u66f4\u7cbe\u7ec6\u5730\u63a7\u5236\u6bcf\u4e2a\u6570\u636e\u5757\u7684\u5904\u7406\u3002<\/p>\n<h3>2. Reactor\u6a21\u5f0f\u5982\u4f55\u5b9e\u73b0 \u7f51\u7edc\u4e0e\u4e1a\u52a1\u7684\u9694\u79bb&#xff1f;<\/h3>\n<h4>&#xff08;1&#xff09;\u7f51\u7edc\u5c42\u548c\u4e1a\u52a1\u5c42\u7684\u5b9a\u4e49<\/h4>\n<ul>\n<li>\u7f51\u7edc\u5c42&#xff1a;\u8d1f\u8d23\u5904\u7406\u6240\u6709\u4e0e\u7f51\u7edc\u76f8\u5173\u7684\u4efb\u52a1&#xff0c;\u4f8b\u5982\u76d1\u542c\u8fde\u63a5\u3001\u63a5\u6536\u548c\u53d1\u9001\u6570\u636e\u7b49\u3002\u8fd9\u4e9b\u64cd\u4f5c\u901a\u5e38\u662f I\/O \u5bc6\u96c6\u578b\u7684&#xff0c;\u5e76\u4e14\u53ef\u80fd\u4f1a\u6709\u5927\u91cf\u7684\u5e76\u53d1\u8bf7\u6c42\u3002<\/li>\n<li>\u4e1a\u52a1\u5c42&#xff1a;\u8d1f\u8d23\u5904\u7406\u5e94\u7528\u7a0b\u5e8f\u7684\u5177\u4f53\u4e1a\u52a1\u903b\u8f91&#xff0c;\u4f8b\u5982\u5904\u7406\u7528\u6237\u8bf7\u6c42\u3001\u8ba1\u7b97\u3001\u5b58\u50a8\u548c\u8fd4\u56de\u6570\u636e\u7b49\u3002\u8fd9\u4e9b\u64cd\u4f5c\u901a\u5e38\u662f CPU \u5bc6\u96c6\u578b\u7684&#xff0c;\u5e76\u4e14\u4f9d\u8d56\u4e8e\u7279\u5b9a\u7684\u4e1a\u52a1\u9700\u6c42\u3002<\/li>\n<\/ul>\n<h4>&#xff08;2&#xff09;Reactor\u6a21\u5f0f\u5982\u4f55\u5b9e\u73b0\u9694\u79bb<\/h4>\n<ul>\n<li>\n<p>I\/O \u4e8b\u4ef6\u5206\u53d1&#xff1a; \u7f51\u7edc\u5c42\u7684 I\/O \u4e8b\u4ef6&#xff08;\u5982\u8fde\u63a5\u8bf7\u6c42\u3001\u6570\u636e\u5230\u8fbe\u7b49&#xff09;\u7531 Reactor&#xff08;\u4e8b\u4ef6\u5faa\u73af&#xff09;\u7ba1\u7406&#xff0c;\u5b83\u4f1a\u5c06\u8fd9\u4e9b\u4e8b\u4ef6\u5206\u53d1\u7ed9\u7279\u5b9a\u7684 \u4e8b\u4ef6\u5904\u7406\u5668\u3002\u8fd9\u4e9b\u5904\u7406\u5668\u53ea\u5173\u5fc3\u5982\u4f55\u5904\u7406\u7f51\u7edc\u4e8b\u4ef6&#xff0c;\u4f8b\u5982\u63a5\u6536\u6570\u636e\u3001\u5efa\u7acb\u8fde\u63a5\u7b49\u3002<\/p>\n<\/li>\n<li>\n<p>\u56de\u8c03\u673a\u5236&#xff1a; \u4e8b\u4ef6\u5904\u7406\u5668\u901a\u5e38\u4f7f\u7528 RCALLBACK\u56de\u8c03\u51fd\u6570 \u6765\u901a\u77e5\u4e1a\u52a1\u5c42\u6267\u884c\u7279\u5b9a\u7684\u64cd\u4f5c\u3002\u5f53\u7f51\u7edc\u4e8b\u4ef6\u5904\u7406\u5b8c\u6210&#xff08;\u4f8b\u5982\u6570\u636e\u88ab\u63a5\u6536\u5230&#xff09;&#xff0c;\u7f51\u7edc\u5c42\u4f1a\u8c03\u7528\u76f8\u5e94\u7684\u4e1a\u52a1\u903b\u8f91\u5904\u7406\u51fd\u6570&#xff08;\u56de\u8c03&#xff09;&#xff0c;\u800c\u4e1a\u52a1\u5c42\u5219\u8d1f\u8d23\u5bf9\u8fd9\u4e9b\u6570\u636e\u8fdb\u884c\u5904\u7406\u548c\u54cd\u5e94\u3002\u901a\u8fc7\u8fd9\u79cd\u4ee3\u7801\u89e3\u8026\u65b9\u5f0f&#xff0c;\u7f51\u7edc\u5c42\u548c\u4e1a\u52a1\u5c42\u53ef\u4ee5\u5b8c\u5168\u89e3\u8026\u3002<\/p>\n<\/li>\n<li>\n<p>\u7f51\u7edc\u5c42\u53ea\u8d1f\u8d23\u76d1\u542c\u548c\u5904\u7406\u7f51\u7edc I\/O \u64cd\u4f5c&#xff0c;\u4e1a\u52a1\u5c42\u53ea\u8d1f\u8d23\u5904\u7406\u5b9e\u9645\u7684\u4e1a\u52a1\u903b\u8f91\u3002\u4e24\u8005\u4e4b\u95f4\u6ca1\u6709\u76f4\u63a5\u7684\u4f9d\u8d56\u5173\u7cfb&#xff0c;\u8fd9\u6837\u5c31\u5b9e\u73b0\u4e86 \u7f51\u7edc\u548c\u4e1a\u52a1\u7684\u9694\u79bb<\/p>\n<\/li>\n<\/ul>\n<h4>\u4e00\u53e5\u8bdd\u6982\u62ecReactor<\/h4>\n<p>Reactor \u8bbe\u8ba1\u6a21\u5f0f\u80fd\u591f\u901a\u8fc7 \u4e8b\u4ef6\u9a71\u52a8\u548c\u56de\u8c03\u673a\u5236\u5b9e\u73b0 \u7f51\u7edc\u5c42\u548c\u4e1a\u52a1\u5c42\u7684\u9694\u79bb&#xff0c;\u5373\u7f51\u7edc\u5c42\u53ea\u8d1f\u8d23\u63a5\u6536\u3001\u53d1\u9001\u6570\u636e\u548c\u7ba1\u7406\u8fde\u63a5&#xff0c;\u800c\u4e1a\u52a1\u5c42\u5219\u4e13\u6ce8\u4e8e\u5904\u7406\u4e1a\u52a1\u903b\u8f91\u3002\u8fd9\u6837\u8bbe\u8ba1\u7684\u4f18\u70b9\u662f \u89e3\u8026\u3001\u7075\u6d3b\u6027 \u548c \u6e05\u6670\u7684\u4ee3\u7801\u7ed3\u6784&#xff0c;\u4f7f\u5f97\u7cfb\u7edf\u66f4\u52a0\u5bb9\u6613\u6269\u5c55\u548c\u7ef4\u62a4<\/p>\n<hr \/>\n<h4>\u89e3\u8026\u7684\u7406\u89e3<\/h4>\n<p>\u4e3b\u7a0b\u5e8f\u628a\u56de\u8c03\u51fd\u6570\u50cf\u53c2\u6570\u4e00\u6837\u4f20\u5165\u5e93\u51fd\u6570\u3002\u53ea\u8981\u6211\u4eec\u6539\u53d8\u4f20\u8fdb\u5e93\u51fd\u6570\u7684\u53c2\u6570&#xff0c;\u5c31\u53ef\u4ee5\u5b9e\u73b0\u4e0d\u540c\u7684\u529f\u80fd, \u5e76\u4e14\u4e1d\u6beb\u4e0d\u9700\u8981\u4fee\u6539\u5e93\u51fd\u6570\u7684\u5b9e\u73b0 <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418142230-68026026a04ea.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<hr \/>\n<p>\u4f18\u79c0\u7b14\u8bb0&#xff1a; 1. C&#043;&#043;\u5b9e\u73b0\u57fa\u4e8ereactor\u7684\u767e\u4e07\u7ea7\u5e76\u53d1\u670d\u52a1\u5668 2. 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