{"id":15617,"date":"2025-04-18T22:12:12","date_gmt":"2025-04-18T14:12:12","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/15617.html"},"modified":"2025-04-18T22:12:12","modified_gmt":"2025-04-18T14:12:12","slug":"04-%e5%9f%ba%e4%ba%8ec%e5%ae%9e%e7%8e%b0%e5%a4%9a%e7%ba%bf%e7%a8%8btcp%e6%9c%8d%e5%8a%a1%e5%99%a8%e4%b8%8e%e5%ae%a2%e6%88%b7%e7%ab%af%e9%80%9a%e4%bf%a1","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/15617.html","title":{"rendered":"04.\u57fa\u4e8eC++\u5b9e\u73b0\u591a\u7ebf\u7a0bTCP\u670d\u52a1\u5668\u4e0e\u5ba2\u6237\u7aef\u901a\u4fe1"},"content":{"rendered":"<h2>\u57fa\u4e8eC&#043;&#043;\u5b9e\u73b0\u591a\u7ebf\u7a0bTCP\u670d\u52a1\u5668\u4e0e\u5ba2\u6237\u7aef\u901a\u4fe1<\/h2>\n<h3>\u76ee\u5f55<\/h3>\n<ul>\n<li>\u4e00\u3001\u9879\u76ee\u80cc\u666f\u4e0e\u76ee\u6807<\/li>\n<li>\u4e8c\u3001\u4ece\u96f6\u5f00\u59cb\u7406\u89e3\u7f51\u7edc\u901a\u4fe1<\/li>\n<li>\u4e09\u3001\u76f8\u5173\u6280\u672f\u80cc\u666f\u77e5\u8bc6\n<ul>\n<li>1. \u5b88\u62a4\u8fdb\u7a0b(Daemon Process)<\/li>\n<li>2. \u7ebf\u7a0b\u6c60(Thread Pool)<\/li>\n<li>3. RAII\u8bbe\u8ba1\u6a21\u5f0f<\/li>\n<\/ul>\n<\/li>\n<li>\u56db\u3001\u9879\u76ee\u6574\u4f53\u7ed3\u6784\u4e0e\u903b\u8f91<\/li>\n<li>\u4e94\u3001\u6838\u5fc3\u6a21\u5757\u8be6\u7ec6\u5206\u6790\n<ul>\n<li>1. TCP\u670d\u52a1\u5668\u6a21\u5757<\/li>\n<li>2. \u7ebf\u7a0b\u6c60\u6a21\u5757<\/li>\n<li>3. \u4efb\u52a1\u5904\u7406\u6a21\u5757<\/li>\n<li>4. \u65e5\u5fd7\u6a21\u5757<\/li>\n<li>5. \u5b88\u62a4\u8fdb\u7a0b\u6a21\u5757<\/li>\n<li>6. \u9501\u7ba1\u7406\u6a21\u5757<\/li>\n<\/ul>\n<\/li>\n<li>\u516d\u3001\u4ece\u5b9e\u8df5\u5230\u7406\u8bba&#xff1a;\u5173\u952e\u8bbe\u8ba1\u6a21\u5f0f\u4e0e\u6280\u672f<\/li>\n<li>\u4e03\u3001\u8fdb\u9636\u4e3b\u9898\u4e0e\u6269\u5c55\u601d\u8003<\/li>\n<li>\u516b\u3001\u603b\u7ed3\u4e0e\u5c55\u671b<\/li>\n<\/ul>\n<h3>\u4e00\u3001\u9879\u76ee\u80cc\u666f\u4e0e\u76ee\u6807<\/h3>\n<p>\u5728\u7f51\u7edc\u7f16\u7a0b\u4e2d&#xff0c;TCP\u534f\u8bae\u56e0\u5176\u53ef\u9760\u6027\u548c\u7a33\u5b9a\u6027\u88ab\u5e7f\u6cdb\u5e94\u7528\u4e8e\u5404\u7c7b\u7f51\u7edc\u670d\u52a1\u3002\u672c\u9879\u76ee\u4f7f\u7528C&#043;&#043;\u8bed\u8a00&#xff0c;\u57fa\u4e8eLinux\u5e73\u53f0\u5b9e\u73b0\u4e86\u4e00\u4e2a\u5b8c\u6574\u7684TCP\u670d\u52a1\u5668\u4e0e\u5ba2\u6237\u7aef\u901a\u4fe1\u7a0b\u5e8f&#xff0c;\u670d\u52a1\u5668\u7aef\u91c7\u7528\u4e86\u7ebf\u7a0b\u6c60\u6280\u672f\u5b9e\u73b0\u9ad8\u6548\u5e76\u53d1\u5904\u7406&#xff0c;\u652f\u6301\u5b88\u62a4\u8fdb\u7a0b\u8fd0\u884c&#xff0c;\u5e76\u5b9e\u73b0\u4e86\u5b8c\u6574\u7684\u65e5\u5fd7\u7cfb\u7edf\u3002<\/p>\n<p>\u672c\u9879\u76ee\u7684\u76ee\u6807\u662f&#xff1a;<\/p>\n<ul>\n<li>\u638c\u63e1TCP\u534f\u8bae\u7684\u57fa\u672c\u7f16\u7a0b\u65b9\u6cd5<\/li>\n<li>\u638c\u63e1\u7ebf\u7a0b\u6c60\u7684\u8bbe\u8ba1\u4e0e\u5b9e\u73b0<\/li>\n<li>\u5b66\u4e60\u5b88\u62a4\u8fdb\u7a0b\u7684\u521b\u5efa\u4e0e\u7ba1\u7406<\/li>\n<li>\u638c\u63e1\u65e5\u5fd7\u7cfb\u7edf\u7684\u8bbe\u8ba1\u4e0e\u5b9e\u73b0<\/li>\n<li>\u7406\u89e3RAII\u8bbe\u8ba1\u6a21\u5f0f\u5728\u8d44\u6e90\u7ba1\u7406\u4e2d\u7684\u5e94\u7528<\/li>\n<\/ul>\n<h3>\u4e8c\u3001\u4ece\u96f6\u5f00\u59cb\u7406\u89e3\u7f51\u7edc\u901a\u4fe1<\/h3>\n<h4>\u7f51\u7edc\u901a\u4fe1\u7684\u672c\u8d28<\/h4>\n<p>\u60f3\u8c61\u4e00\u4e0b&#xff0c;\u5f53\u4f60\u7ed9\u670b\u53cb\u53d1\u9001\u4e00\u6761\u77ed\u4fe1\u65f6&#xff0c;\u8fd9\u6761\u4fe1\u606f\u662f\u5982\u4f55\u4ece\u4f60\u7684\u624b\u673a\u4f20\u9012\u5230\u670b\u53cb\u7684\u624b\u673a\u7684&#xff1f;\u8fd9\u4e2a\u8fc7\u7a0b\u6d89\u53ca&#xff1a;<\/p>\n<li>\u4f60\u7684\u624b\u673a\u5c06\u4fe1\u606f\u7f16\u7801<\/li>\n<li>\u901a\u8fc7\u65e0\u7ebf\u4fe1\u53f7\u53d1\u9001\u5230\u57fa\u7ad9<\/li>\n<li>\u57fa\u7ad9\u5c06\u4fe1\u606f\u8def\u7531\u5230\u76ee\u6807\u624b\u673a<\/li>\n<li>\u76ee\u6807\u624b\u673a\u63a5\u6536\u5e76\u89e3\u7801\u4fe1\u606f<\/li>\n<p>\u8ba1\u7b97\u673a\u7f51\u7edc\u901a\u4fe1\u4e5f\u9075\u5faa\u7c7b\u4f3c\u7684\u539f\u7406&#xff0c;\u53ea\u662f\u66f4\u52a0\u590d\u6742\u548c\u89c4\u8303\u5316\u3002TCP\/IP\u534f\u8bae\u5c31\u50cf\u662f\u8ba1\u7b97\u673a\u4e4b\u95f4\u6c9f\u901a\u7684&#034;\u8bed\u8a00\u89c4\u5219&#034;&#xff0c;\u786e\u4fdd\u4fe1\u606f\u80fd\u591f\u6b63\u786e\u4f20\u9012\u3002<\/p>\n<h4>\u5957\u63a5\u5b57(Socket)&#xff1a;\u7f51\u7edc\u901a\u4fe1\u7684\u57fa\u7840<\/h4>\n<p>\u5957\u63a5\u5b57\u53ef\u4ee5\u7406\u89e3\u4e3a\u7f51\u7edc\u901a\u4fe1\u7684&#034;\u63d2\u5ea7&#034;&#xff0c;\u5c31\u50cf\u5bb6\u91cc\u7684\u7535\u6e90\u63d2\u5ea7\u8fde\u63a5\u7535\u5668\u4e00\u6837&#xff0c;\u5957\u63a5\u5b57\u8fde\u63a5\u7f51\u7edc\u4e2d\u7684\u5e94\u7528\u7a0b\u5e8f\u3002<\/p>\n<p>\u5e94\u7528\u7a0b\u5e8f &lt;&#8212;&gt; \u5957\u63a5\u5b57 &lt;&#8212;&gt; \u7f51\u7edc &lt;&#8212;&gt; \u5957\u63a5\u5b57 &lt;&#8212;&gt; \u5e94\u7528\u7a0b\u5e8f<\/p>\n<p>\u5728\u6211\u4eec\u7684\u9879\u76ee\u4e2d&#xff1a;<\/p>\n<p><span class=\"token comment\">\/\/ \u521b\u5efa\u5957\u63a5\u5b57<\/span><br \/>\n_sock <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>\u8fd9\u884c\u4ee3\u7801\u5c31\u50cf\u662f\u5b89\u88c5\u4e86\u4e00\u4e2a&#034;\u7f51\u7edc\u63d2\u5ea7&#034;&#xff0c;\u5176\u4e2d&#xff1a;<\/p>\n<ul>\n<li>AF_INET\u8868\u793a\u4f7f\u7528IPv4\u5730\u5740<\/li>\n<li>SOCK_STREAM\u8868\u793a\u4f7f\u7528TCP\u534f\u8bae<\/li>\n<li>0\u8868\u793a\u4f7f\u7528\u9ed8\u8ba4\u534f\u8bae<\/li>\n<\/ul>\n<h3>\u4e09\u3001\u76f8\u5173\u6280\u672f\u80cc\u666f\u77e5\u8bc6<\/h3>\n<h4>1. \u5b88\u62a4\u8fdb\u7a0b(Daemon Process)&#xff1a;\u670d\u52a1\u5668\u7684&#034;\u9690\u5f62\u6a21\u5f0f&#034;<\/h4>\n<p>\u60f3\u8c61\u4e00\u4e0b&#xff0c;\u5982\u679c\u4f60\u7684\u624b\u673a\u5e94\u7528\u5fc5\u987b\u4fdd\u6301\u524d\u53f0\u8fd0\u884c\u624d\u80fd\u63a5\u6536\u6d88\u606f&#xff0c;\u90a3\u5c06\u662f\u591a\u4e48\u4e0d\u4fbf&#xff01;\u5b88\u62a4\u8fdb\u7a0b\u5c31\u50cf\u662f\u624b\u673a\u7684&#034;\u540e\u53f0\u5e94\u7528&#034;&#xff0c;\u5373\u4f7f\u4f60\u5173\u95ed\u4e86\u7ec8\u7aef\u7a97\u53e3&#xff0c;\u5b83\u4ecd\u7136\u5728\u9ed8\u9ed8\u5de5\u4f5c\u3002<\/p>\n<p>\u5b88\u62a4\u8fdb\u7a0b\u7684\u521b\u5efa\u8fc7\u7a0b\u53ef\u4ee5\u7c7b\u6bd4\u4e3a\u4e00\u4e2a\u5458\u5de5\u7684&#034;\u72ec\u7acb&#034;&#xff1a;<\/p>\n<li>\u521b\u5efa\u5b50\u8fdb\u7a0b\u5e76\u9000\u51fa\u7236\u8fdb\u7a0b&#xff1a;\u5c31\u50cf\u5458\u5de5\u4ece\u516c\u53f8\u5206\u79bb\u51fa\u6765\u6210\u7acb\u81ea\u5df1\u7684\u5de5\u4f5c\u5ba4<\/li>\n<li>\u521b\u5efa\u65b0\u4f1a\u8bdd&#xff1a;\u5458\u5de5\u4e0d\u518d\u63a5\u53d7\u539f\u516c\u53f8\u7684\u76f4\u63a5\u7ba1\u7406<\/li>\n<li>\u91cd\u5b9a\u5411\u8f93\u5165\u8f93\u51fa&#xff1a;\u5458\u5de5\u5efa\u7acb\u4e86\u81ea\u5df1\u7684\u6c9f\u901a\u6e20\u9053<\/li>\n<li>\u66f4\u6539\u5de5\u4f5c\u76ee\u5f55&#xff1a;\u5458\u5de5\u642c\u5230\u4e86\u65b0\u7684\u529e\u516c\u5730\u70b9<\/li>\n<p><span class=\"token comment\">\/\/ \u521b\u5efa\u5b88\u62a4\u8fdb\u7a0b\u7684\u5173\u952e\u6b65\u9aa4<\/span><br \/>\n<span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token function\">fork<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&gt;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token function\">exit<\/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\">\/\/ \u7236\u8fdb\u7a0b\u9000\u51fa<\/span><br \/>\npid_t n <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">setsid<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>       <span class=\"token comment\">\/\/ \u521b\u5efa\u65b0\u4f1a\u8bdd<\/span><\/p>\n<h4>2. \u7ebf\u7a0b\u6c60(Thread Pool)&#xff1a;\u9ad8\u6548\u7684&#034;\u5de5\u4f5c\u56e2\u961f&#034;<\/h4>\n<p>\u60f3\u8c61\u4e00\u5bb6\u9910\u5385&#xff1a;<\/p>\n<ul>\n<li>\u5982\u679c\u6bcf\u6765\u4e00\u4f4d\u5ba2\u4eba\u5c31\u96c7\u4f63\u4e00\u540d\u65b0\u670d\u52a1\u5458&#xff0c;\u6210\u672c\u4f1a\u975e\u5e38\u9ad8<\/li>\n<li>\u5982\u679c\u53ea\u6709\u4e00\u540d\u670d\u52a1\u5458&#xff0c;\u5ba2\u4eba\u53ef\u80fd\u9700\u8981\u957f\u65f6\u95f4\u7b49\u5f85<\/li>\n<li>\u6700\u4f73\u65b9\u6848\u662f\u7ef4\u6301\u4e00\u4e2a\u56fa\u5b9a\u6570\u91cf\u7684\u670d\u52a1\u5458\u56e2\u961f&#xff0c;\u968f\u65f6\u51c6\u5907\u670d\u52a1\u65b0\u5ba2\u4eba<\/li>\n<\/ul>\n<p>\u7ebf\u7a0b\u6c60\u5c31\u662f\u8fd9\u6837\u7684&#034;\u670d\u52a1\u5458\u56e2\u961f&#034;&#xff1a;<\/p>\n<ul>\n<li>\u9884\u5148\u521b\u5efa\u591a\u4e2a\u7ebf\u7a0b&#xff0c;\u7b49\u5f85\u4efb\u52a1\u5206\u914d<\/li>\n<li>\u5f53\u65b0\u4efb\u52a1\u5230\u6765\u65f6&#xff0c;\u4ece\u7ebf\u7a0b\u6c60\u4e2d\u5206\u914d\u4e00\u4e2a\u7a7a\u95f2\u7ebf\u7a0b\u5904\u7406<\/li>\n<li>\u4efb\u52a1\u5b8c\u6210\u540e&#xff0c;\u7ebf\u7a0b\u8fd4\u56de\u6c60\u4e2d\u7b49\u5f85\u4e0b\u4e00\u4e2a\u4efb\u52a1<\/li>\n<\/ul>\n<p><span class=\"token comment\">\/\/ \u7ebf\u7a0b\u6c60\u7684\u6838\u5fc3&#xff1a;\u7b49\u5f85\u5e76\u5904\u7406\u4efb\u52a1<\/span><br \/>\n<span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token boolean\">true<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    T t<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        LockGuard <span class=\"token function\">lockguard<\/span><span class=\"token punctuation\">(<\/span>td<span class=\"token operator\">-&gt;<\/span>threadpool<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">mutex<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span>td<span class=\"token operator\">-&gt;<\/span>threadpool<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">isQueueEmpty<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            td<span class=\"token operator\">-&gt;<\/span>threadpool<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">threadWait<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u7b49\u5f85\u65b0\u4efb\u52a1<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        t <span class=\"token operator\">&#061;<\/span> td<span class=\"token operator\">-&gt;<\/span>threadpool<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">pop<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u83b7\u53d6\u4efb\u52a1<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token function\">t<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u6267\u884c\u4efb\u52a1<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>3. RAII(Resource Acquisition Is Initialization)&#xff1a;\u667a\u80fd\u8d44\u6e90\u7ba1\u7406<\/h4>\n<p>RAII\u5c31\u50cf\u662f\u4e00\u4e2a\u81ea\u52a8\u5316\u7684&#034;\u8d44\u6e90\u7ba1\u5bb6&#034;\u3002\u60f3\u8c61\u4f60\u53bb\u56fe\u4e66\u9986&#xff1a;<\/p>\n<ul>\n<li>\u8fdb\u95e8\u65f6&#xff0c;\u4f60\u501f\u4e86\u4e00\u672c\u4e66&#xff08;\u83b7\u53d6\u8d44\u6e90&#xff09;<\/li>\n<li>\u79bb\u5f00\u65f6&#xff0c;\u4f60\u5fc5\u987b\u5f52\u8fd8\u8fd9\u672c\u4e66&#xff08;\u91ca\u653e\u8d44\u6e90&#xff09;<\/li>\n<li>\u5982\u679c\u4f60\u5fd8\u8bb0\u5f52\u8fd8&#xff0c;\u56fe\u4e66\u9986\u4f1a\u6709\u9ebb\u70e6<\/li>\n<\/ul>\n<p>RAII\u786e\u4fdd&#xff1a;<\/p>\n<ul>\n<li>\u5f53\u4f60&#034;\u8fdb\u95e8&#034;&#xff08;\u521b\u5efa\u5bf9\u8c61&#xff09;\u65f6&#xff0c;\u81ea\u52a8\u501f\u4e66&#xff08;\u83b7\u53d6\u8d44\u6e90&#xff09;<\/li>\n<li>\u5f53\u4f60&#034;\u79bb\u5f00&#034;&#xff08;\u5bf9\u8c61\u9500\u6bc1&#xff09;\u65f6&#xff0c;\u81ea\u52a8\u8fd8\u4e66&#xff08;\u91ca\u653e\u8d44\u6e90&#xff09;<\/li>\n<li>\u5373\u4f7f\u53d1\u751f\u610f\u5916&#xff08;\u5982\u5f02\u5e38&#xff09;&#xff0c;\u4e5f\u80fd\u786e\u4fdd\u4e66\u88ab\u5f52\u8fd8<\/li>\n<\/ul>\n<p><span class=\"token comment\">\/\/ RAII\u7684\u5178\u578b\u5e94\u7528&#xff1a;\u81ea\u52a8\u7ba1\u7406\u9501<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    LockGuard <span class=\"token function\">lockguard<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>_mutex<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u6784\u9020\u65f6\u81ea\u52a8\u52a0\u9501<\/span><br \/>\n    _task_queue<span class=\"token punctuation\">.<\/span><span class=\"token function\">push<\/span><span class=\"token punctuation\">(<\/span>in<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">pthread_cond_signal<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>_cond<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span>  <span class=\"token comment\">\/\/ \u79bb\u5f00\u4f5c\u7528\u57df\u65f6\u81ea\u52a8\u89e3\u9501<\/span><\/p>\n<h3>\u56db\u3001\u9879\u76ee\u6574\u4f53\u7ed3\u6784\u4e0e\u903b\u8f91<\/h3>\n<h4>\u9879\u76ee\u6a21\u5757\u5173\u7cfb\u56fe<\/h4>\n<p>                  &#043;&#8212;&#8212;&#8212;&#8212;-&#043;<br \/>\n                  | tcpServer.cc|<br \/>\n                  &#043;&#8212;&#8212;&#043;&#8212;&#8212;&#043;<br \/>\n                         |<br \/>\n                         v<br \/>\n&#043;&#8212;&#8212;&#8212;-&#043;      &#043;&#8212;&#8212;&#043;&#8212;&#8212;-&#043;      &#043;&#8212;&#8212;&#8212;&#8211;&#043;<br \/>\n| daemon.hpp|&lt;&#8212;&#8211;| tcpServer.hpp|&#8212;&#8211;&gt;|  Task.hpp |<br \/>\n&#043;&#8212;&#8212;&#8212;-&#043;      &#043;&#8212;&#8212;&#043;&#8212;&#8212;-&#043;      &#043;&#8212;&#8211;&#043;&#8212;&#8211;&#043;<br \/>\n                         |                    |<br \/>\n                         v                    v<br \/>\n                  &#043;&#8212;&#8212;&#043;&#8212;&#8212;-&#043;     &#043;&#8212;&#8212;&#043;&#8212;&#8212;&#043;<br \/>\n                  |ThreadPool.hpp|&lt;&#8212;-|serviceIO()  |<br \/>\n                  &#043;&#8212;&#8212;&#043;&#8212;&#8212;-&#043;     &#043;&#8212;&#8212;&#8212;&#8212;-&#043;<br \/>\n                         |<br \/>\n                         v<br \/>\n                  &#043;&#8212;&#8212;&#043;&#8212;&#8212;-&#043;<br \/>\n                  |  Thread.hpp  |<br \/>\n                  &#043;&#8212;&#8212;&#043;&#8212;&#8212;-&#043;<br \/>\n                         |<br \/>\n                         v<br \/>\n                  &#043;&#8212;&#8212;&#043;&#8212;&#8212;-&#043;<br \/>\n                  | LockGuard.hpp|<br \/>\n                  &#043;&#8212;&#8212;&#8212;&#8212;-&#043;<\/p>\n<h4>\u9879\u76ee\u6574\u4f53\u8fd0\u884c\u6d41\u7a0b<\/h4>\n<p>\u60f3\u8c61\u4e00\u4e2a\u9910\u5385\u7684\u8fd0\u4f5c\u6d41\u7a0b&#xff1a;<\/p>\n<li>\n<p>\u9910\u5385\u5f00\u4e1a&#xff08;\u670d\u52a1\u5668\u542f\u52a8&#xff09;&#xff1a;<\/p>\n<ul>\n<li>\u51c6\u5907\u573a\u5730&#xff08;\u521b\u5efa\u5957\u63a5\u5b57&#xff09;<\/li>\n<li>\u6302\u51fa\u8425\u4e1a\u724c&#xff08;\u7ed1\u5b9a\u7aef\u53e3&#xff09;<\/li>\n<li>\u7ec4\u5efa\u670d\u52a1\u56e2\u961f&#xff08;\u521d\u59cb\u5316\u7ebf\u7a0b\u6c60&#xff09;<\/li>\n<li>\u5f00\u59cb\u8fce\u63a5\u5ba2\u4eba&#xff08;\u76d1\u542c\u8fde\u63a5&#xff09;<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u5ba2\u4eba\u5230\u6765&#xff08;\u5ba2\u6237\u7aef\u8fde\u63a5&#xff09;&#xff1a;<\/p>\n<ul>\n<li>\u670d\u52a1\u5458\u5f15\u5bfc\u5165\u5ea7&#xff08;accept\u63a5\u53d7\u8fde\u63a5&#xff09;<\/li>\n<li>\u5206\u914d\u4e00\u540d\u670d\u52a1\u5458&#xff08;\u4ece\u7ebf\u7a0b\u6c60\u5206\u914d\u7ebf\u7a0b&#xff09;<\/li>\n<li>\u5f00\u59cb\u70b9\u9910\u670d\u52a1&#xff08;\u5904\u7406\u5ba2\u6237\u7aef\u8bf7\u6c42&#xff09;<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u670d\u52a1\u8fc7\u7a0b&#xff08;\u6570\u636e\u4ea4\u6362&#xff09;&#xff1a;<\/p>\n<ul>\n<li>\u5ba2\u4eba\u70b9\u9910&#xff08;\u5ba2\u6237\u7aef\u53d1\u9001\u6570\u636e&#xff09;<\/li>\n<li>\u670d\u52a1\u5458\u8bb0\u5f55\u5e76\u786e\u8ba4&#xff08;\u670d\u52a1\u5668\u5904\u7406\u5e76\u56de\u5e94&#xff09;<\/li>\n<li>\u4e0a\u83dc&#xff08;\u670d\u52a1\u5668\u8fd4\u56de\u7ed3\u679c&#xff09;<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u5c31\u9910\u7ed3\u675f&#xff08;\u8fde\u63a5\u5173\u95ed&#xff09;&#xff1a;<\/p>\n<ul>\n<li>\u5ba2\u4eba\u79bb\u5f00&#xff08;\u5ba2\u6237\u7aef\u65ad\u5f00\u8fde\u63a5&#xff09;<\/li>\n<li>\u670d\u52a1\u5458\u6e05\u7406\u684c\u9762&#xff08;\u5173\u95edsocket&#xff09;<\/li>\n<li>\u51c6\u5907\u670d\u52a1\u4e0b\u4e00\u4f4d\u5ba2\u4eba&#xff08;\u7ebf\u7a0b\u8fd4\u56de\u6c60\u4e2d&#xff09;<\/li>\n<\/ul>\n<\/li>\n<h3>\u4e94\u3001\u6838\u5fc3\u6a21\u5757\u8be6\u7ec6\u5206\u6790<\/h3>\n<h4>1. TCP\u670d\u52a1\u5668\u6a21\u5757 (tcpServer.hpp\u3001tcpServer.cc)<\/h4>\n<h5>\u8bbe\u8ba1\u601d\u8def&#xff1a;\u5efa\u7acb\u901a\u4fe1\u7684&#034;\u6865\u6881&#034;<\/h5>\n<p>TCP\u670d\u52a1\u5668\u5c31\u50cf\u662f\u4e00\u4e2a\u7535\u8bdd\u603b\u673a&#xff0c;\u8d1f\u8d23\u63a5\u542c\u6765\u7535\u5e76\u5c06\u5176\u8f6c\u63a5\u7ed9\u5408\u9002\u7684\u63a5\u7ebf\u5458\u3002\u5176\u4e3b\u8981\u804c\u8d23\u662f&#xff1a;<\/p>\n<ul>\n<li>\u521b\u5efa\u901a\u4fe1\u6e20\u9053&#xff08;\u5957\u63a5\u5b57&#xff09;<\/li>\n<li>\u516c\u5e03\u8054\u7cfb\u65b9\u5f0f&#xff08;\u7ed1\u5b9a\u5730\u5740\u548c\u7aef\u53e3&#xff09;<\/li>\n<li>\u7b49\u5f85\u6765\u7535&#xff08;\u76d1\u542c\u8fde\u63a5&#xff09;<\/li>\n<li>\u63a5\u542c\u5e76\u8f6c\u63a5&#xff08;\u63a5\u53d7\u8fde\u63a5\u5e76\u63d0\u4ea4\u7ed9\u7ebf\u7a0b\u6c60&#xff09;<\/li>\n<\/ul>\n<h5>\u5173\u952e\u4ee3\u7801\u89e3\u6790<\/h5>\n<p><span class=\"token keyword\">void<\/span> <span class=\"token function\">initServer<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ 1. \u521b\u5efa\u901a\u4fe1\u6e20\u9053<\/span><br \/>\n    _listensock <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 comment\">\/\/ 2. \u7ed1\u5b9a\u5730\u5740\u548c\u7aef\u53e3&#xff08;\u516c\u5e03\u8054\u7cfb\u65b9\u5f0f&#xff09;<\/span><br \/>\n    <span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">sockaddr_in<\/span> local<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">memset<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>local<span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">sizeof<\/span><span class=\"token punctuation\">(<\/span>local<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    local<span class=\"token punctuation\">.<\/span>sin_family <span class=\"token operator\">&#061;<\/span> AF_INET<span class=\"token punctuation\">;<\/span><br \/>\n    local<span class=\"token punctuation\">.<\/span>sin_port <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">htons<\/span><span class=\"token punctuation\">(<\/span>_port<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    local<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 punctuation\">;<\/span><br \/>\n    <span class=\"token function\">bind<\/span><span class=\"token punctuation\">(<\/span>_listensock<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>local<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">sizeof<\/span><span class=\"token punctuation\">(<\/span>local<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ 3. \u5f00\u59cb\u76d1\u542c&#xff08;\u7b49\u5f85\u6765\u7535&#xff09;<\/span><br \/>\n    <span class=\"token function\">listen<\/span><span class=\"token punctuation\">(<\/span>_listensock<span class=\"token punctuation\">,<\/span> gbacklog<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">void<\/span> <span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ 4. \u51c6\u5907\u63a5\u7ebf\u5458\u56e2\u961f&#xff08;\u521d\u59cb\u5316\u7ebf\u7a0b\u6c60&#xff09;<\/span><br \/>\n    <span class=\"token class-name\">ThreadPool<\/span><span class=\"token operator\">&lt;<\/span>Task<span class=\"token operator\">&gt;<\/span><span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">getInstance<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">-&gt;<\/span><span class=\"token function\">run<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ 5. \u63a5\u542c\u6765\u7535<\/span><br \/>\n        <span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">sockaddr_in<\/span> peer<span class=\"token punctuation\">;<\/span><br \/>\n        socklen_t len <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">sizeof<\/span><span class=\"token punctuation\">(<\/span>peer<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">int<\/span> sock <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">accept<\/span><span class=\"token punctuation\">(<\/span>_listensock<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>peer<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>len<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ 6. \u8f6c\u63a5\u7ed9\u63a5\u7ebf\u5458&#xff08;\u63d0\u4ea4\u4efb\u52a1\u5230\u7ebf\u7a0b\u6c60&#xff09;<\/span><br \/>\n        <span class=\"token class-name\">ThreadPool<\/span><span class=\"token operator\">&lt;<\/span>Task<span class=\"token operator\">&gt;<\/span><span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">getInstance<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">-&gt;<\/span><span class=\"token function\">push<\/span><span class=\"token punctuation\">(<\/span><span class=\"token function\">Task<\/span><span class=\"token punctuation\">(<\/span>sock<span class=\"token punctuation\">,<\/span> serviceIO<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h5>\u5b9e\u73b0\u8981\u70b9\u4e0e\u6280\u5de7<\/h5>\n<ul>\n<li>\n<p>\u9519\u8bef\u5904\u7406\u7684\u91cd\u8981\u6027&#xff1a;\u7f51\u7edc\u7f16\u7a0b\u4e2d&#xff0c;\u5404\u79cd\u610f\u5916\u60c5\u51b5\u90fd\u53ef\u80fd\u53d1\u751f&#xff08;\u7aef\u53e3\u88ab\u5360\u7528\u3001\u8fde\u63a5\u7a81\u7136\u65ad\u5f00\u7b49&#xff09;\u3002\u826f\u597d\u7684\u9519\u8bef\u5904\u7406\u80fd\u8ba9\u7a0b\u5e8f\u66f4\u52a0\u5065\u58ee\u3002<\/p>\n<\/li>\n<li>\n<p>\u4e3a\u4ec0\u4e48\u4f7f\u7528INADDR_ANY&#xff1a;\u4f7f\u7528INADDR_ANY&#xff08;\u503c\u4e3a0.0.0.0&#xff09;\u5141\u8bb8\u670d\u52a1\u5668\u76d1\u542c\u6240\u6709\u7f51\u7edc\u63a5\u53e3&#xff0c;\u65e0\u8bba\u5ba2\u6237\u7aef\u4ece\u54ea\u4e2a\u7f51\u5361\u8fde\u63a5\u90fd\u80fd\u63a5\u53d7\u3002<\/p>\n<\/li>\n<li>\n<p>backlog\u53c2\u6570\u7684\u610f\u4e49&#xff1a;listen(_listensock, gbacklog)\u4e2d\u7684gbacklog\u8868\u793a\u7b49\u5f85\u8fde\u63a5\u961f\u5217\u7684\u6700\u5927\u957f\u5ea6\u3002\u5f53\u8fde\u63a5\u8bf7\u6c42\u8fc7\u591a\u65f6&#xff0c;\u8d85\u8fc7\u8fd9\u4e2a\u503c\u7684\u8fde\u63a5\u4f1a\u88ab\u62d2\u7edd\u3002<\/p>\n<\/li>\n<\/ul>\n<h4>2. \u7ebf\u7a0b\u6c60\u6a21\u5757 (ThreadPool.hpp\u3001Thread.hpp)<\/h4>\n<h5>\u8bbe\u8ba1\u601d\u8def&#xff1a;\u9ad8\u6548\u7684&#034;\u5de5\u4f5c\u56e2\u961f&#034;<\/h5>\n<p>\u7ebf\u7a0b\u6c60\u5c31\u50cf\u4e00\u4e2a\u9ad8\u6548\u7684\u5de5\u4f5c\u56e2\u961f&#xff1a;<\/p>\n<ul>\n<li>\u9884\u5148\u7ec4\u5efa\u56e2\u961f&#xff08;\u521b\u5efa\u7ebf\u7a0b&#xff09;<\/li>\n<li>\u7edf\u4e00\u5206\u914d\u4efb\u52a1&#xff08;\u4efb\u52a1\u961f\u5217&#xff09;<\/li>\n<li>\u56e2\u961f\u6210\u5458\u4e92\u76f8\u534f\u4f5c&#xff08;\u7ebf\u7a0b\u540c\u6b65&#xff09;<\/li>\n<li>\u907f\u514d\u91cd\u590d\u62db\u8058&#xff08;\u7ebf\u7a0b\u590d\u7528&#xff09;<\/li>\n<\/ul>\n<h5>\u5173\u952e\u4ee3\u7801\u89e3\u6790<\/h5>\n<p><span class=\"token comment\">\/\/ \u7ebf\u7a0b\u7684\u5de5\u4f5c\u5faa\u73af<\/span><br \/>\n<span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token operator\">*<\/span><span class=\"token function\">handlerTask<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span> <span class=\"token operator\">*<\/span>args<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    ThreadData<span class=\"token operator\">&lt;<\/span>T<span class=\"token operator\">&gt;<\/span> <span class=\"token operator\">*<\/span>td <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">(<\/span>ThreadData<span class=\"token operator\">&lt;<\/span>T<span class=\"token operator\">&gt;<\/span> <span class=\"token operator\">*<\/span><span class=\"token punctuation\">)<\/span>args<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token boolean\">true<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        T t<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token comment\">\/\/ 1. \u7b49\u5f85\u4efb\u52a1\u5206\u914d<\/span><br \/>\n            LockGuard <span class=\"token function\">lockguard<\/span><span class=\"token punctuation\">(<\/span>td<span class=\"token operator\">-&gt;<\/span>threadpool<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">mutex<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span>td<span class=\"token operator\">-&gt;<\/span>threadpool<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">isQueueEmpty<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                td<span class=\"token operator\">-&gt;<\/span>threadpool<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">threadWait<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u6ca1\u6709\u4efb\u52a1\u65f6\u7b49\u5f85<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n            <span class=\"token comment\">\/\/ 2. \u9886\u53d6\u4efb\u52a1<\/span><br \/>\n            t <span class=\"token operator\">&#061;<\/span> td<span class=\"token operator\">-&gt;<\/span>threadpool<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">pop<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token comment\">\/\/ 3. \u6267\u884c\u4efb\u52a1<\/span><br \/>\n        <span class=\"token function\">t<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> <span class=\"token keyword\">nullptr<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u6dfb\u52a0\u65b0\u4efb\u52a1<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">push<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> T <span class=\"token operator\">&amp;<\/span>in<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ 1. \u9501\u5b9a\u4efb\u52a1\u961f\u5217<\/span><br \/>\n    LockGuard <span class=\"token function\">lockguard<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>_mutex<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token comment\">\/\/ 2. \u6dfb\u52a0\u4efb\u52a1<\/span><br \/>\n    _task_queue<span class=\"token punctuation\">.<\/span><span class=\"token function\">push<\/span><span class=\"token punctuation\">(<\/span>in<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token comment\">\/\/ 3. \u901a\u77e5\u7b49\u5f85\u7684\u7ebf\u7a0b<\/span><br \/>\n    <span class=\"token function\">pthread_cond_signal<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>_cond<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h5>\u5b9e\u73b0\u8981\u70b9\u4e0e\u6280\u5de7<\/h5>\n<ul>\n<li>\n<p>\u4e3a\u4ec0\u4e48\u4f7f\u7528\u6761\u4ef6\u53d8\u91cf&#xff1a;\u6761\u4ef6\u53d8\u91cf\u5141\u8bb8\u7ebf\u7a0b\u5728\u7279\u5b9a\u6761\u4ef6\u6ee1\u8db3\u524d\u8fdb\u5165\u7761\u7720\u72b6\u6001&#xff0c;\u907f\u514d\u4e86\u5fd9\u7b49\u5f85&#xff08;\u4e0d\u65ad\u68c0\u67e5\u6761\u4ef6&#xff09;\u5e26\u6765\u7684CPU\u8d44\u6e90\u6d6a\u8d39\u3002<\/p>\n<\/li>\n<li>\n<p>\u5355\u4f8b\u6a21\u5f0f\u7684\u4f18\u52bf&#xff1a;\u6574\u4e2a\u7a0b\u5e8f\u53ea\u9700\u8981\u4e00\u4e2a\u7ebf\u7a0b\u6c60\u5b9e\u4f8b&#xff0c;\u5355\u4f8b\u6a21\u5f0f\u786e\u4fdd\u4e86\u8d44\u6e90\u7684\u7edf\u4e00\u7ba1\u7406&#xff0c;\u907f\u514d\u4e86\u91cd\u590d\u521b\u5efa\u5e26\u6765\u7684\u5f00\u9500\u3002<\/p>\n<\/li>\n<li>\n<p>\u53cc\u91cd\u68c0\u67e5\u9501\u5b9a&#xff1a;\u5728getInstance()\u65b9\u6cd5\u4e2d\u4f7f\u7528\u53cc\u91cd\u68c0\u67e5\u9501\u5b9a&#xff0c;\u65e2\u4fdd\u8bc1\u4e86\u7ebf\u7a0b\u5b89\u5168&#xff0c;\u53c8\u907f\u514d\u4e86\u6bcf\u6b21\u83b7\u53d6\u5b9e\u4f8b\u90fd\u52a0\u9501\u5e26\u6765\u7684\u6027\u80fd\u635f\u5931\u3002<\/p>\n<\/li>\n<li>\n<p>\u6a21\u677f\u8bbe\u8ba1\u7684\u7075\u6d3b\u6027&#xff1a;\u4f7f\u7528\u6a21\u677f\u8bbe\u8ba1\u7ebf\u7a0b\u6c60&#xff0c;\u4f7f\u5176\u80fd\u591f\u5904\u7406\u4e0d\u540c\u7c7b\u578b\u7684\u4efb\u52a1&#xff0c;\u63d0\u9ad8\u4e86\u4ee3\u7801\u7684\u590d\u7528\u6027\u3002<\/p>\n<\/li>\n<\/ul>\n<h4>3. \u4efb\u52a1\u5904\u7406\u6a21\u5757 (Task.hpp)<\/h4>\n<h5>\u8bbe\u8ba1\u601d\u8def&#xff1a;\u7edf\u4e00\u7684\u4efb\u52a1\u63a5\u53e3<\/h5>\n<p>\u4efb\u52a1\u5904\u7406\u6a21\u5757\u5c31\u50cf\u662f\u4e00\u4e2a\u6807\u51c6\u5316\u7684&#034;\u5de5\u4f5c\u6307\u5357&#034;&#xff1a;<\/p>\n<ul>\n<li>\u5b9a\u4e49\u4e86\u5de5\u4f5c\u5185\u5bb9&#xff08;\u5904\u7406\u5ba2\u6237\u7aef\u8fde\u63a5&#xff09;<\/li>\n<li>\u63d0\u4f9b\u4e86\u7edf\u4e00\u7684\u6267\u884c\u65b9\u5f0f&#xff08;operator()&#xff09;<\/li>\n<li>\u5c01\u88c5\u4e86\u5177\u4f53\u5b9e\u73b0\u7ec6\u8282&#xff08;\u56de\u8c03\u51fd\u6570&#xff09;<\/li>\n<\/ul>\n<h5>\u5173\u952e\u4ee3\u7801\u89e3\u6790<\/h5>\n<p><span class=\"token comment\">\/\/ \u5177\u4f53\u7684\u4efb\u52a1\u5904\u7406\u51fd\u6570<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">serviceIO<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> sock<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">char<\/span> buffer<span class=\"token punctuation\">[<\/span><span class=\"token number\">1024<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token boolean\">true<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ 1. \u63a5\u6536\u5ba2\u6237\u7aef\u6570\u636e<\/span><br \/>\n        ssize_t n <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">read<\/span><span class=\"token punctuation\">(<\/span>sock<span class=\"token punctuation\">,<\/span> buffer<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">sizeof<\/span><span class=\"token punctuation\">(<\/span>buffer<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#8211;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>n <span class=\"token operator\">&gt;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token comment\">\/\/ 2. \u5904\u7406\u6570\u636e<\/span><br \/>\n            buffer<span class=\"token punctuation\">[<\/span>n<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            std<span class=\"token double-colon punctuation\">::<\/span>cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034;recv message: &#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> buffer <span class=\"token operator\">&lt;&lt;<\/span> std<span class=\"token double-colon punctuation\">::<\/span>endl<span class=\"token punctuation\">;<\/span><\/p>\n<p>            <span class=\"token comment\">\/\/ 3. \u51c6\u5907\u54cd\u5e94<\/span><br \/>\n            std<span class=\"token double-colon punctuation\">::<\/span>string outbuffer <span class=\"token operator\">&#061;<\/span> buffer<span class=\"token punctuation\">;<\/span><br \/>\n            outbuffer <span class=\"token operator\">&#043;&#061;<\/span> <span class=\"token string\">&#034; server[echo]&#034;<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>            <span class=\"token comment\">\/\/ 4. \u53d1\u9001\u54cd\u5e94<\/span><br \/>\n            <span class=\"token function\">write<\/span><span class=\"token punctuation\">(<\/span>sock<span class=\"token punctuation\">,<\/span> outbuffer<span class=\"token punctuation\">.<\/span><span class=\"token function\">c_str<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> outbuffer<span class=\"token punctuation\">.<\/span><span class=\"token function\">size<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token keyword\">else<\/span> <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>n <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 comment\">\/\/ 5. \u5ba2\u6237\u7aef\u65ad\u5f00\u8fde\u63a5<\/span><br \/>\n            <span class=\"token function\">logMessage<\/span><span class=\"token punctuation\">(<\/span>NORMAL<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;client quit, me too!&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">break<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token comment\">\/\/ 6. \u5173\u95ed\u8fde\u63a5<\/span><br \/>\n    <span class=\"token function\">close<\/span><span class=\"token punctuation\">(<\/span>sock<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u4efb\u52a1\u5c01\u88c5\u7c7b<\/span><br \/>\n<span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Task<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">using<\/span> func_t <span class=\"token operator\">&#061;<\/span> std<span class=\"token double-colon punctuation\">::<\/span>function<span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">void<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">&gt;<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">public<\/span><span class=\"token operator\">:<\/span><br \/>\n    <span class=\"token function\">Task<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> sock<span class=\"token punctuation\">,<\/span> func_t func<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token operator\">:<\/span> <span class=\"token function\">_sock<\/span><span class=\"token punctuation\">(<\/span>sock<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token function\">_callback<\/span><span class=\"token punctuation\">(<\/span>func<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u7edf\u4e00\u7684\u4efb\u52a1\u6267\u884c\u63a5\u53e3<\/span><br \/>\n    <span class=\"token keyword\">void<\/span> <span class=\"token keyword\">operator<\/span><span class=\"token punctuation\">(<\/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\">_callback<\/span><span class=\"token punctuation\">(<\/span>_sock<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">private<\/span><span class=\"token operator\">:<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> _sock<span class=\"token punctuation\">;<\/span><br \/>\n    func_t _callback<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<h5>\u5b9e\u73b0\u8981\u70b9\u4e0e\u6280\u5de7<\/h5>\n<ul>\n<li>\n<p>\u4e3a\u4ec0\u4e48\u4f7f\u7528std::function&#xff1a;std::function\u63d0\u4f9b\u4e86\u4e00\u79cd\u7c7b\u578b\u5b89\u5168\u7684\u51fd\u6570\u5c01\u88c5&#xff0c;\u53ef\u4ee5\u5b58\u50a8\u3001\u590d\u5236\u548c\u8c03\u7528\u4efb\u4f55\u53ef\u8c03\u7528\u76ee\u6807&#xff08;\u51fd\u6570\u3001lambda\u8868\u8fbe\u5f0f\u3001\u51fd\u6570\u5bf9\u8c61\u7b49&#xff09;\u3002<\/p>\n<\/li>\n<li>\n<p>\u4e3a\u4ec0\u4e48\u91cd\u8f7doperator()&#xff1a;\u91cd\u8f7doperator()\u4f7fTask\u5bf9\u8c61\u53ef\u4ee5\u50cf\u51fd\u6570\u4e00\u6837\u88ab\u8c03\u7528&#xff0c;\u7b26\u5408\u7ebf\u7a0b\u6c60\u5bf9\u4efb\u52a1\u7684\u8981\u6c42&#xff0c;\u540c\u65f6\u63d0\u4f9b\u4e86\u66f4\u6e05\u6670\u7684\u63a5\u53e3\u3002<\/p>\n<\/li>\n<li>\n<p>read\/write vs recv\/send&#xff1a;\u672c\u9879\u76ee\u4f7f\u7528read\/write\u800c\u975erecv\/send&#xff0c;\u56e0\u4e3a\u524d\u8005\u66f4\u7b26\u5408Unix \u201c\u4e00\u5207\u7686\u6587\u4ef6\u201d \u7684\u54f2\u5b66&#xff0c;\u53ef\u4ee5\u7edf\u4e00\u5904\u7406\u6587\u4ef6\u3001\u7ba1\u9053\u3001\u5957\u63a5\u5b57\u7b49I\/O\u64cd\u4f5c\u3002<\/p>\n<\/li>\n<li>\n<p>\u4e3a\u4ec0\u4e48\u63a5\u6536\u7528char[]\u800c\u53d1\u9001\u7528string&#xff1a;<\/p>\n<ul>\n<li>\u63a5\u6536\u6570\u636e\u65f6\u4f7f\u7528\u56fa\u5b9a\u5927\u5c0f\u7684char[]\u7f13\u51b2\u533a&#xff0c;\u53ef\u4ee5\u76f4\u63a5\u4e0e\u7cfb\u7edf\u8c03\u7528\u914d\u5408&#xff0c;\u907f\u514d\u52a8\u6001\u5185\u5b58\u5206\u914d<\/li>\n<li>\u53d1\u9001\u6570\u636e\u65f6\u4f7f\u7528string&#xff0c;\u4fbf\u4e8e\u5b57\u7b26\u4e32\u64cd\u4f5c&#xff08;\u5982\u62fc\u63a5&#xff09;<\/li>\n<li>\u6700\u540e\u901a\u8fc7c_str()\u8f6c\u6362\u56deC\u98ce\u683c\u5b57\u7b26\u4e32\u8fdb\u884c\u53d1\u9001<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h4>4. \u65e5\u5fd7\u6a21\u5757 (log.hpp)<\/h4>\n<h5>\u8bbe\u8ba1\u601d\u8def&#xff1a;\u7cfb\u7edf\u7684&#034;\u9ed1\u5323\u5b50&#034;<\/h5>\n<p>\u65e5\u5fd7\u7cfb\u7edf\u5c31\u50cf\u98de\u673a\u7684\u9ed1\u5323\u5b50&#xff0c;\u8bb0\u5f55\u7cfb\u7edf\u8fd0\u884c\u7684\u5404\u79cd\u72b6\u6001\u548c\u4e8b\u4ef6&#xff1a;<\/p>\n<ul>\n<li>\u4e0d\u540c\u7ea7\u522b\u7684\u65e5\u5fd7&#xff08;\u4ece\u8c03\u8bd5\u4fe1\u606f\u5230\u81f4\u547d\u9519\u8bef&#xff09;<\/li>\n<li>\u8be6\u7ec6\u7684\u65f6\u95f4\u548c\u4e0a\u4e0b\u6587\u4fe1\u606f<\/li>\n<li>\u6301\u4e45\u5316\u5b58\u50a8&#xff0c;\u4fbf\u4e8e\u540e\u671f\u5206\u6790<\/li>\n<\/ul>\n<h5>\u5173\u952e\u4ee3\u7801\u89e3\u6790<\/h5>\n<p><span class=\"token keyword\">void<\/span> <span class=\"token function\">logMessage<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> level<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">const<\/span> <span class=\"token keyword\">char<\/span> <span class=\"token operator\">*<\/span>format<span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">.<\/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 comment\">\/\/ 1. \u6784\u5efa\u65e5\u5fd7\u524d\u7f00<\/span><br \/>\n    <span class=\"token keyword\">char<\/span> logprefix<span class=\"token punctuation\">[<\/span>NUM<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">snprintf<\/span><span class=\"token punctuation\">(<\/span>logprefix<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">sizeof<\/span><span class=\"token punctuation\">(<\/span>logprefix<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;[%s][%ld][pid: %d]&#034;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n        <span class=\"token function\">to_levelstr<\/span><span class=\"token punctuation\">(<\/span>level<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">long<\/span> <span class=\"token keyword\">int<\/span><span class=\"token punctuation\">)<\/span><span class=\"token function\">time<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">nullptr<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token function\">getpid<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ 2. \u5904\u7406\u53ef\u53d8\u53c2\u6570<\/span><br \/>\n    <span class=\"token keyword\">char<\/span> logcontent<span class=\"token punctuation\">[<\/span>NUM<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    va_list arg<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">va_start<\/span><span class=\"token punctuation\">(<\/span>arg<span class=\"token punctuation\">,<\/span> format<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">vsnprintf<\/span><span class=\"token punctuation\">(<\/span>logcontent<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">sizeof<\/span><span class=\"token punctuation\">(<\/span>logcontent<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> format<span class=\"token punctuation\">,<\/span> arg<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">va_end<\/span><span class=\"token punctuation\">(<\/span>arg<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ 3. \u9009\u62e9\u65e5\u5fd7\u6587\u4ef6<\/span><br \/>\n    FILE <span class=\"token operator\">*<\/span>log <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">fopen<\/span><span class=\"token punctuation\">(<\/span>LOG_NORMAL<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;a&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    FILE <span class=\"token operator\">*<\/span>err <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">fopen<\/span><span class=\"token punctuation\">(<\/span>LOG_ERR<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;a&#034;<\/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>log <span class=\"token operator\">!&#061;<\/span> <span class=\"token keyword\">nullptr<\/span> <span class=\"token operator\">&amp;&amp;<\/span> err <span class=\"token operator\">!&#061;<\/span> <span class=\"token keyword\">nullptr<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        FILE <span class=\"token operator\">*<\/span>curr <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">nullptr<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>level <span class=\"token operator\">&lt;&#061;<\/span> WARNING<span class=\"token punctuation\">)<\/span> curr <span class=\"token operator\">&#061;<\/span> log<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">else<\/span> curr <span class=\"token operator\">&#061;<\/span> err<span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ 4. \u5199\u5165\u65e5\u5fd7<\/span><br \/>\n        <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>curr<span class=\"token punctuation\">)<\/span> <span class=\"token function\">fprintf<\/span><span class=\"token punctuation\">(<\/span>curr<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;%s%s\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> logprefix<span class=\"token punctuation\">,<\/span> logcontent<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token function\">fclose<\/span><span class=\"token punctuation\">(<\/span>log<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">fclose<\/span><span class=\"token punctuation\">(<\/span>err<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h5>\u5b9e\u73b0\u8981\u70b9\u4e0e\u6280\u5de7<\/h5>\n<ul>\n<li>\n<p>\u53ef\u53d8\u53c2\u6570\u7684\u5904\u7406&#xff1a;\u4f7f\u7528va_list\u3001va_start\u3001va_end\u548cvsnprintf\u5904\u7406\u53ef\u53d8\u53c2\u6570&#xff0c;\u5b9e\u73b0\u4e86\u7c7b\u4f3cprintf\u7684\u7075\u6d3b\u63a5\u53e3\u3002<\/p>\n<\/li>\n<li>\n<p>\u65e5\u5fd7\u5206\u7ea7\u7684\u610f\u4e49&#xff1a;<\/p>\n<ul>\n<li>DEBUG&#xff1a;\u8be6\u7ec6\u7684\u8c03\u8bd5\u4fe1\u606f&#xff0c;\u5e2e\u52a9\u5f00\u53d1\u8005\u7406\u89e3\u7a0b\u5e8f\u6d41\u7a0b<\/li>\n<li>NORMAL&#xff1a;\u6b63\u5e38\u64cd\u4f5c\u4fe1\u606f&#xff0c;\u8bb0\u5f55\u7cfb\u7edf\u7684\u6b63\u5e38\u6d3b\u52a8<\/li>\n<li>WARNING&#xff1a;\u8b66\u544a\u4fe1\u606f&#xff0c;\u8868\u793a\u53ef\u80fd\u7684\u95ee\u9898\u4f46\u4e0d\u5f71\u54cd\u4e3b\u8981\u529f\u80fd<\/li>\n<li>ERROR&#xff1a;\u9519\u8bef\u4fe1\u606f&#xff0c;\u8868\u793a\u529f\u80fd\u53d7\u5230\u5f71\u54cd\u4f46\u7cfb\u7edf\u4ecd\u80fd\u8fd0\u884c<\/li>\n<li>FATAL&#xff1a;\u81f4\u547d\u9519\u8bef&#xff0c;\u8868\u793a\u7cfb\u7edf\u65e0\u6cd5\u7ee7\u7eed\u8fd0\u884c<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u4e3a\u4ec0\u4e48\u5206\u6587\u4ef6\u5b58\u50a8&#xff1a;\u5c06\u666e\u901a\u65e5\u5fd7\u548c\u9519\u8bef\u65e5\u5fd7\u5206\u5f00\u5b58\u50a8&#xff0c;\u4fbf\u4e8e\u5feb\u901f\u5b9a\u4f4d\u95ee\u9898&#xff0c;\u540c\u65f6\u907f\u514d\u91cd\u8981\u7684\u9519\u8bef\u4fe1\u606f\u88ab\u5927\u91cf\u666e\u901a\u65e5\u5fd7\u6df9\u6ca1\u3002<\/p>\n<\/li>\n<li>\n<p>\u65f6\u95f4\u6233\u548c\u8fdb\u7a0bID&#xff1a;\u8bb0\u5f55\u65f6\u95f4\u6233\u548c\u8fdb\u7a0bID&#xff0c;\u4fbf\u4e8e\u5728\u591a\u8fdb\u7a0b\u73af\u5883\u4e0b\u8ffd\u8e2a\u95ee\u9898&#xff0c;\u786e\u5b9a\u4e8b\u4ef6\u53d1\u751f\u7684\u987a\u5e8f\u3002<\/p>\n<\/li>\n<\/ul>\n<h4>5. \u5b88\u62a4\u8fdb\u7a0b\u6a21\u5757 (daemon.hpp)<\/h4>\n<h5>\u8bbe\u8ba1\u601d\u8def&#xff1a;\u670d\u52a1\u5668\u7684&#034;\u9690\u5f62\u6a21\u5f0f&#034;<\/h5>\n<p>\u5b88\u62a4\u8fdb\u7a0b\u5c31\u50cf\u662f\u7cfb\u7edf\u7684&#034;\u9690\u5f62\u670d\u52a1\u5458&#034;&#xff1a;<\/p>\n<ul>\n<li>\u8131\u79bb\u7528\u6237\u63a7\u5236&#xff08;\u4e0d\u4f9d\u8d56\u7ec8\u7aef&#xff09;<\/li>\n<li>\u5728\u540e\u53f0\u9ed8\u9ed8\u5de5\u4f5c&#xff08;\u4e0d\u663e\u793a\u8f93\u51fa&#xff09;<\/li>\n<li>\u957f\u671f\u7a33\u5b9a\u8fd0\u884c&#xff08;\u4e0d\u53d7\u7528\u6237\u767b\u5f55\u72b6\u6001\u5f71\u54cd&#xff09;<\/li>\n<\/ul>\n<h5>\u5173\u952e\u4ee3\u7801\u89e3\u6790<\/h5>\n<p><span class=\"token keyword\">void<\/span> <span class=\"token function\">daemonSelf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> <span class=\"token keyword\">char<\/span> <span class=\"token operator\">*<\/span>currPath <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">nullptr<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ 1. \u5ffd\u7565\u7ba1\u9053\u7834\u88c2\u4fe1\u53f7<\/span><br \/>\n    <span class=\"token function\">signal<\/span><span class=\"token punctuation\">(<\/span>SIGPIPE<span class=\"token punctuation\">,<\/span> SIG_IGN<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ 2. \u521b\u5efa\u5b50\u8fdb\u7a0b&#xff0c;\u7236\u8fdb\u7a0b\u9000\u51fa<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token function\">fork<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&gt;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><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><\/p>\n<p>    <span class=\"token comment\">\/\/ 3. \u521b\u5efa\u65b0\u4f1a\u8bdd&#xff0c;\u8131\u79bb\u63a7\u5236\u7ec8\u7aef<\/span><br \/>\n    pid_t n <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">setsid<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">assert<\/span><span class=\"token punctuation\">(<\/span>n <span class=\"token operator\">!&#061;<\/span> <span class=\"token operator\">&#8211;<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ 4. \u91cd\u5b9a\u5411\u6807\u51c6\u8f93\u5165\u8f93\u51fa<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> fd <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">open<\/span><span class=\"token punctuation\">(<\/span>DEV<span class=\"token punctuation\">,<\/span> O_RDWR<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>fd <span class=\"token operator\">&gt;&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token function\">dup2<\/span><span class=\"token punctuation\">(<\/span>fd<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\">\/\/ \u6807\u51c6\u8f93\u5165<\/span><br \/>\n        <span class=\"token function\">dup2<\/span><span class=\"token punctuation\">(<\/span>fd<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\">\/\/ \u6807\u51c6\u8f93\u51fa<\/span><br \/>\n        <span class=\"token function\">dup2<\/span><span class=\"token punctuation\">(<\/span>fd<span class=\"token punctuation\">,<\/span> <span class=\"token number\">2<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u6807\u51c6\u9519\u8bef<\/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 punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ 5. \u66f4\u6539\u5de5\u4f5c\u76ee\u5f55<\/span><br \/>\n    <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>currPath<span class=\"token punctuation\">)<\/span> <span class=\"token function\">chdir<\/span><span class=\"token punctuation\">(<\/span>currPath<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h5>\u5b9e\u73b0\u8981\u70b9\u4e0e\u6280\u5de7<\/h5>\n<ul>\n<li>\n<p>\u4e3a\u4ec0\u4e48\u5ffd\u7565SIGPIPE\u4fe1\u53f7&#xff1a;\u5f53\u5199\u5165\u4e00\u4e2a\u5df2\u5173\u95ed\u7684\u7ba1\u9053\u6216\u5957\u63a5\u5b57\u65f6&#xff0c;\u7cfb\u7edf\u4f1a\u53d1\u9001SIGPIPE\u4fe1\u53f7&#xff0c;\u9ed8\u8ba4\u5904\u7406\u662f\u7ec8\u6b62\u8fdb\u7a0b\u3002\u5ffd\u7565\u6b64\u4fe1\u53f7\u53ef\u4ee5\u9632\u6b62\u670d\u52a1\u5668\u56e0\u5ba2\u6237\u7aef\u5f02\u5e38\u65ad\u5f00\u800c\u5d29\u6e83\u3002<\/p>\n<\/li>\n<li>\n<p>\u4e3a\u4ec0\u4e48\u4f7f\u7528fork()&#xff1a;\u4f7f\u7528fork()\u521b\u5efa\u5b50\u8fdb\u7a0b&#xff0c;\u7136\u540e\u7236\u8fdb\u7a0b\u9000\u51fa&#xff0c;\u4f7f\u5b50\u8fdb\u7a0b\u6210\u4e3a\u5b64\u513f\u8fdb\u7a0b&#xff0c;\u88abinit\u8fdb\u7a0b\u6536\u517b&#xff0c;\u4ece\u800c\u8131\u79bb\u539f\u6765\u7684\u63a7\u5236\u7ec8\u7aef\u3002<\/p>\n<\/li>\n<li>\n<p>setsid()\u7684\u4f5c\u7528&#xff1a;setsid()\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u4f1a\u8bdd&#xff0c;\u4f7f\u8fdb\u7a0b\u6210\u4e3a\u4f1a\u8bdd\u9996\u8fdb\u7a0b&#xff0c;\u6ca1\u6709\u63a7\u5236\u7ec8\u7aef&#xff0c;\u4e0d\u4f1a\u63a5\u6536\u7ec8\u7aef\u76f8\u5173\u7684\u4fe1\u53f7\u3002<\/p>\n<\/li>\n<li>\n<p>\u4e3a\u4ec0\u4e48\u91cd\u5b9a\u5411\u5230\/dev\/null&#xff1a;\u91cd\u5b9a\u5411\u6807\u51c6\u8f93\u5165\u8f93\u51fa\u5230\/dev\/null&#xff0c;\u786e\u4fdd\u8fdb\u7a0b\u4e0d\u4f1a\u56e0\u4e3a\u8bfb\u5199\u7ec8\u7aef\u800c\u963b\u585e&#xff0c;\u540c\u65f6\u907f\u514d\u8f93\u51fa\u4fe1\u606f\u5e72\u6270\u7cfb\u7edf\u8fd0\u884c\u3002<\/p>\n<\/li>\n<\/ul>\n<h4>6. \u9501\u7ba1\u7406\u6a21\u5757 (LockGuard.hpp)<\/h4>\n<h5>\u8bbe\u8ba1\u601d\u8def&#xff1a;\u81ea\u52a8\u5316\u7684&#034;\u8d44\u6e90\u7ba1\u5bb6&#034;<\/h5>\n<p>\u9501\u7ba1\u7406\u6a21\u5757\u5c31\u50cf\u662f\u4e00\u4e2a\u81ea\u52a8\u5316\u7684\u95e8\u7981\u7cfb\u7edf&#xff1a;<\/p>\n<ul>\n<li>\u8fdb\u5165\u533a\u57df\u65f6\u81ea\u52a8\u4e0a\u9501&#xff08;\u6784\u9020\u51fd\u6570\u4e2d\u52a0\u9501&#xff09;<\/li>\n<li>\u79bb\u5f00\u533a\u57df\u65f6\u81ea\u52a8\u89e3\u9501&#xff08;\u6790\u6784\u51fd\u6570\u4e2d\u89e3\u9501&#xff09;<\/li>\n<li>\u786e\u4fdd\u8d44\u6e90\u5b89\u5168&#xff0c;\u907f\u514d\u51b2\u7a81&#xff08;\u7ebf\u7a0b\u5b89\u5168&#xff09;<\/li>\n<\/ul>\n<h5>\u5173\u952e\u4ee3\u7801\u89e3\u6790<\/h5>\n<p><span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Mutex<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token keyword\">public<\/span><span class=\"token operator\">:<\/span><br \/>\n    <span class=\"token function\">Mutex<\/span><span class=\"token punctuation\">(<\/span>pthread_mutex_t <span class=\"token operator\">*<\/span>lock_p <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">nullptr<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">:<\/span> <span class=\"token function\">lock_p_<\/span><span class=\"token punctuation\">(<\/span>lock_p<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">void<\/span> <span class=\"token function\">lock<\/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>lock_p_<span class=\"token punctuation\">)<\/span> <span class=\"token function\">pthread_mutex_lock<\/span><span class=\"token punctuation\">(<\/span>lock_p_<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">void<\/span> <span class=\"token function\">unlock<\/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>lock_p_<span class=\"token punctuation\">)<\/span> <span class=\"token function\">pthread_mutex_unlock<\/span><span class=\"token punctuation\">(<\/span>lock_p_<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">private<\/span><span class=\"token operator\">:<\/span><br \/>\n    pthread_mutex_t <span class=\"token operator\">*<\/span>lock_p_<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">class<\/span> <span class=\"token class-name\">LockGuard<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token keyword\">public<\/span><span class=\"token operator\">:<\/span><br \/>\n    <span class=\"token function\">LockGuard<\/span><span class=\"token punctuation\">(<\/span>pthread_mutex_t <span class=\"token operator\">*<\/span>mutex<span class=\"token punctuation\">)<\/span><span class=\"token operator\">:<\/span> <span class=\"token function\">mutex_<\/span><span class=\"token punctuation\">(<\/span>mutex<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        mutex_<span class=\"token punctuation\">.<\/span><span class=\"token function\">lock<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u6784\u9020\u65f6\u81ea\u52a8\u52a0\u9501<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token operator\">~<\/span><span class=\"token function\">LockGuard<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        mutex_<span class=\"token punctuation\">.<\/span><span class=\"token function\">unlock<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u6790\u6784\u65f6\u81ea\u52a8\u89e3\u9501<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">private<\/span><span class=\"token operator\">:<\/span><br \/>\n    Mutex mutex_<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<h5>\u5b9e\u73b0\u8981\u70b9\u4e0e\u6280\u5de7<\/h5>\n<ul>\n<li>\n<p>RAII\u7684\u4f18\u52bf&#xff1a;\u4f7f\u7528RAII\u6a21\u5f0f\u7ba1\u7406\u9501\u8d44\u6e90&#xff0c;\u65e0\u9700\u624b\u52a8\u89e3\u9501&#xff0c;\u5373\u4f7f\u53d1\u751f\u5f02\u5e38\u4e5f\u80fd\u786e\u4fdd\u9501\u88ab\u91ca\u653e&#xff0c;\u907f\u514d\u6b7b\u9501\u3002<\/p>\n<\/li>\n<li>\n<p>\u5206\u79bbMutex\u548cLockGuard&#xff1a;\u5c06Mutex\u548cLockGuard\u5206\u5f00\u5b9e\u73b0&#xff0c;\u63d0\u9ad8\u4e86\u4ee3\u7801\u7684\u590d\u7528\u6027\u548c\u7075\u6d3b\u6027\u3002Mutex\u5c01\u88c5\u4e86\u5e95\u5c42\u9501\u64cd\u4f5c&#xff0c;LockGuard\u63d0\u4f9b\u4e86RAII\u98ce\u683c\u7684\u63a5\u53e3\u3002<\/p>\n<\/li>\n<li>\n<p>\u7a7a\u6307\u9488\u68c0\u67e5&#xff1a;\u5728lock()\u548cunlock()\u65b9\u6cd5\u4e2d\u68c0\u67e5\u6307\u9488\u662f\u5426\u4e3a\u7a7a&#xff0c;\u63d0\u9ad8\u4e86\u4ee3\u7801\u7684\u5065\u58ee\u6027&#xff0c;\u907f\u514d\u7a7a\u6307\u9488\u5f02\u5e38\u3002<\/p>\n<\/li>\n<li>\n<p>\u4f7f\u7528\u793a\u4f8b&#xff1a;<\/p>\n<p> <span class=\"token punctuation\">{<\/span><br \/>\n    LockGuard <span class=\"token function\">guard<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>mutex<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u8fdb\u5165\u4f5c\u7528\u57df&#xff0c;\u81ea\u52a8\u52a0\u9501<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u4e34\u754c\u533a\u4ee3\u7801&#8230;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span>  <span class=\"token comment\">\/\/ \u79bb\u5f00\u4f5c\u7528\u57df&#xff0c;\u81ea\u52a8\u89e3\u9501<\/span>\n <\/li>\n<\/ul>\n<h3>\u516d\u3001\u4ece\u5b9e\u8df5\u5230\u7406\u8bba&#xff1a;\u5173\u952e\u8bbe\u8ba1\u6a21\u5f0f\u4e0e\u6280\u672f<\/h3>\n<h4>1. \u5355\u4f8b\u6a21\u5f0f(Singleton Pattern)<\/h4>\n<p>\u5b9a\u4e49&#xff1a;\u786e\u4fdd\u4e00\u4e2a\u7c7b\u53ea\u6709\u4e00\u4e2a\u5b9e\u4f8b&#xff0c;\u5e76\u63d0\u4f9b\u4e00\u4e2a\u5168\u5c40\u8bbf\u95ee\u70b9\u3002<\/p>\n<p>\u5e94\u7528&#xff1a;\u7ebf\u7a0b\u6c60\u4f7f\u7528\u5355\u4f8b\u6a21\u5f0f&#xff0c;\u786e\u4fdd\u6574\u4e2a\u7a0b\u5e8f\u53ea\u6709\u4e00\u4e2a\u7ebf\u7a0b\u6c60\u5b9e\u4f8b\u3002<\/p>\n<p>\u4f18\u52bf&#xff1a;<\/p>\n<ul>\n<li>\u8282\u7ea6\u7cfb\u7edf\u8d44\u6e90&#xff0c;\u907f\u514d\u91cd\u590d\u521b\u5efa<\/li>\n<li>\u63d0\u4f9b\u5168\u5c40\u8bbf\u95ee\u70b9&#xff0c;\u65b9\u4fbf\u4f7f\u7528<\/li>\n<li>\u786e\u4fdd\u6240\u6709\u7ec4\u4ef6\u4f7f\u7528\u540c\u4e00\u4e2a\u5b9e\u4f8b<\/li>\n<\/ul>\n<p>\u5b9e\u73b0&#xff1a;<\/p>\n<p><span class=\"token keyword\">static<\/span> ThreadPool<span class=\"token operator\">&lt;<\/span>T<span class=\"token operator\">&gt;<\/span> <span class=\"token operator\">*<\/span><span class=\"token function\">getInstance<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">nullptr<\/span> <span class=\"token operator\">&#061;&#061;<\/span> tp<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        _singlock<span class=\"token punctuation\">.<\/span><span class=\"token function\">lock<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">nullptr<\/span> <span class=\"token operator\">&#061;&#061;<\/span> tp<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            tp <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token generic-function\"><span class=\"token function\">ThreadPool<\/span><span class=\"token generic class-name\"><span class=\"token operator\">&lt;<\/span>T<span class=\"token operator\">&gt;<\/span><\/span><\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        _singlock<span class=\"token punctuation\">.<\/span><span class=\"token function\">unlock<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> tp<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>2. \u89c2\u5bdf\u8005\u6a21\u5f0f(Observer Pattern)\u7684\u53d8\u4f53<\/h4>\n<p>\u5b9a\u4e49&#xff1a;\u5b9a\u4e49\u5bf9\u8c61\u95f4\u7684\u4e00\u79cd\u4e00\u5bf9\u591a\u4f9d\u8d56\u5173\u7cfb&#xff0c;\u4f7f\u5f97\u5f53\u4e00\u4e2a\u5bf9\u8c61\u72b6\u6001\u6539\u53d8\u65f6&#xff0c;\u6240\u6709\u4f9d\u8d56\u4e8e\u5b83\u7684\u5bf9\u8c61\u90fd\u4f1a\u5f97\u5230\u901a\u77e5\u3002<\/p>\n<p>\u5e94\u7528&#xff1a;\u7ebf\u7a0b\u6c60\u4e2d\u7684\u6761\u4ef6\u53d8\u91cf\u673a\u5236\u5b9e\u9645\u4e0a\u662f\u89c2\u5bdf\u8005\u6a21\u5f0f\u7684\u4e00\u79cd\u53d8\u4f53\u3002<\/p>\n<p>\u4f18\u52bf&#xff1a;<\/p>\n<ul>\n<li>\u89e3\u8026\u4e86\u4efb\u52a1\u751f\u4ea7\u8005\u548c\u6d88\u8d39\u8005<\/li>\n<li>\u652f\u6301\u4e00\u5bf9\u591a\u7684\u901a\u77e5\u673a\u5236<\/li>\n<li>\u63d0\u9ad8\u4e86\u7cfb\u7edf\u7684\u7075\u6d3b\u6027<\/li>\n<\/ul>\n<p>\u5b9e\u73b0&#xff1a;<\/p>\n<p><span class=\"token comment\">\/\/ \u751f\u4ea7\u8005&#xff08;\u901a\u77e5\u8005&#xff09;<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">push<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> T <span class=\"token operator\">&amp;<\/span>in<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    LockGuard <span class=\"token function\">lockguard<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>_mutex<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    _task_queue<span class=\"token punctuation\">.<\/span><span class=\"token function\">push<\/span><span class=\"token punctuation\">(<\/span>in<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">pthread_cond_signal<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>_cond<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u901a\u77e5\u7b49\u5f85\u7684\u7ebf\u7a0b<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u6d88\u8d39\u8005&#xff08;\u89c2\u5bdf\u8005&#xff09;<\/span><br \/>\n<span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span>td<span class=\"token operator\">-&gt;<\/span>threadpool<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">isQueueEmpty<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    td<span class=\"token operator\">-&gt;<\/span>threadpool<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">threadWait<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u7b49\u5f85\u901a\u77e5<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>3. \u5de5\u5382\u65b9\u6cd5\u6a21\u5f0f(Factory Method Pattern)<\/h4>\n<p>\u5b9a\u4e49&#xff1a;\u5b9a\u4e49\u4e00\u4e2a\u521b\u5efa\u5bf9\u8c61\u7684\u63a5\u53e3&#xff0c;\u4f46\u7531\u5b50\u7c7b\u51b3\u5b9a\u8981\u5b9e\u4f8b\u5316\u7684\u7c7b\u662f\u54ea\u4e00\u4e2a\u3002<\/p>\n<p>\u5e94\u7528&#xff1a;Task\u7c7b\u4f7f\u7528\u4e86\u5de5\u5382\u65b9\u6cd5\u6a21\u5f0f\u7684\u601d\u60f3&#xff0c;\u901a\u8fc7\u56de\u8c03\u51fd\u6570\u521b\u5efa\u4e0d\u540c\u7684\u4efb\u52a1\u5904\u7406\u903b\u8f91\u3002<\/p>\n<p>\u4f18\u52bf&#xff1a;<\/p>\n<ul>\n<li>\u5c06\u5bf9\u8c61\u7684\u521b\u5efa\u4e0e\u4f7f\u7528\u5206\u79bb<\/li>\n<li>\u652f\u6301\u6269\u5c55&#xff0c;\u53ef\u4ee5\u8f7b\u677e\u6dfb\u52a0\u65b0\u7684\u4efb\u52a1\u7c7b\u578b<\/li>\n<li>\u63d0\u9ad8\u4e86\u4ee3\u7801\u7684\u53ef\u7ef4\u62a4\u6027<\/li>\n<\/ul>\n<p>\u5b9e\u73b0&#xff1a;<\/p>\n<p><span class=\"token function\">Task<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> sock<span class=\"token punctuation\">,<\/span> func_t func<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token operator\">:<\/span> <span class=\"token function\">_sock<\/span><span class=\"token punctuation\">(<\/span>sock<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token function\">_callback<\/span><span class=\"token punctuation\">(<\/span>func<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">void<\/span> <span class=\"token keyword\">operator<\/span><span class=\"token punctuation\">(<\/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\">_callback<\/span><span class=\"token punctuation\">(<\/span>_sock<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u8c03\u7528\u5de5\u5382\u65b9\u6cd5\u521b\u5efa\u7684\u5904\u7406\u903b\u8f91<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h3>\u4e03\u3001\u8fdb\u9636\u4e3b\u9898\u4e0e\u6269\u5c55\u601d\u8003<\/h3>\n<h4>1. \u6027\u80fd\u4f18\u5316<\/h4>\n<p>\u8fde\u63a5\u6c60&#xff1a;\u9664\u4e86\u7ebf\u7a0b\u6c60&#xff0c;\u8fd8\u53ef\u4ee5\u5b9e\u73b0\u8fde\u63a5\u6c60&#xff0c;\u9884\u5148\u5efa\u7acb\u548c\u7ef4\u62a4\u4e00\u7ec4\u6570\u636e\u5e93\u8fde\u63a5&#xff0c;\u907f\u514d\u9891\u7e41\u521b\u5efa\u548c\u9500\u6bc1\u8fde\u63a5\u7684\u5f00\u9500\u3002<\/p>\n<p>\u96f6\u62f7\u8d1d\u6280\u672f&#xff1a;\u4f7f\u7528sendfile()\u7b49\u7cfb\u7edf\u8c03\u7528&#xff0c;\u51cf\u5c11\u6570\u636e\u5728\u5185\u6838\u7a7a\u95f4\u548c\u7528\u6237\u7a7a\u95f4\u4e4b\u95f4\u7684\u62f7\u8d1d&#xff0c;\u63d0\u9ad8\u6587\u4ef6\u4f20\u8f93\u6548\u7387\u3002<\/p>\n<p>\u4e8b\u4ef6\u9a71\u52a8\u6a21\u578b&#xff1a;\u4f7f\u7528epoll\u3001kqueue\u7b49I\/O\u591a\u8def\u590d\u7528\u6280\u672f&#xff0c;\u5b9e\u73b0\u9ad8\u6548\u7684\u4e8b\u4ef6\u9a71\u52a8\u6a21\u578b&#xff0c;\u652f\u6301\u66f4\u591a\u5e76\u53d1\u8fde\u63a5\u3002<\/p>\n<h4>2. \u5b89\u5168\u6027\u8003\u8651<\/h4>\n<p>\u8f93\u5165\u9a8c\u8bc1&#xff1a;\u5bf9\u5ba2\u6237\u7aef\u8f93\u5165\u8fdb\u884c\u4e25\u683c\u9a8c\u8bc1&#xff0c;\u9632\u6b62\u7f13\u51b2\u533a\u6ea2\u51fa\u3001SQL\u6ce8\u5165\u7b49\u653b\u51fb\u3002<\/p>\n<p>\u52a0\u5bc6\u901a\u4fe1&#xff1a;\u5b9e\u73b0SSL\/TLS\u52a0\u5bc6&#xff0c;\u4fdd\u62a4\u6570\u636e\u4f20\u8f93\u5b89\u5168\u3002<\/p>\n<p>\u8d44\u6e90\u9650\u5236&#xff1a;\u5bf9\u8fde\u63a5\u6570\u3001\u8bf7\u6c42\u9891\u7387\u7b49\u8fdb\u884c\u9650\u5236&#xff0c;\u9632\u6b62DoS\u653b\u51fb\u3002<\/p>\n<h4>3. \u53ef\u6269\u5c55\u6027\u8bbe\u8ba1<\/h4>\n<p>\u63d2\u4ef6\u7cfb\u7edf&#xff1a;\u8bbe\u8ba1\u63d2\u4ef6\u63a5\u53e3&#xff0c;\u652f\u6301\u52a8\u6001\u52a0\u8f7d\u529f\u80fd\u6a21\u5757\u3002<\/p>\n<p>\u914d\u7f6e\u4e2d\u5fc3&#xff1a;\u5b9e\u73b0\u96c6\u4e2d\u5f0f\u914d\u7f6e\u7ba1\u7406&#xff0c;\u652f\u6301\u52a8\u6001\u914d\u7f6e\u66f4\u65b0\u3002<\/p>\n<p>\u670d\u52a1\u53d1\u73b0&#xff1a;\u96c6\u6210\u670d\u52a1\u53d1\u73b0\u673a\u5236&#xff0c;\u652f\u6301\u5206\u5e03\u5f0f\u90e8\u7f72\u3002<\/p>\n<h3>\u516b\u3001\u603b\u7ed3\u4e0e\u5c55\u671b<\/h3>\n<p>\u672c\u9879\u76ee\u5b9e\u73b0\u4e86\u4e00\u4e2a\u5b8c\u6574\u7684TCP\u670d\u52a1\u5668\u4e0e\u5ba2\u6237\u7aef\u901a\u4fe1\u7cfb\u7edf&#xff0c;\u6db5\u76d6\u4e86\u7f51\u7edc\u7f16\u7a0b\u3001\u591a\u7ebf\u7a0b\u7f16\u7a0b\u3001\u7ebf\u7a0b\u6c60\u3001\u5b88\u62a4\u8fdb\u7a0b\u3001\u65e5\u5fd7\u7cfb\u7edf\u7b49\u591a\u4e2a\u6838\u5fc3\u77e5\u8bc6\u70b9\u3002\u901a\u8fc7\u6a21\u5757\u5316\u8bbe\u8ba1\u548c\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b&#xff0c;\u6211\u4eec\u6784\u5efa\u4e86\u4e00\u4e2a\u7ed3\u6784\u6e05\u6670\u3001\u529f\u80fd\u5b8c\u5584\u7684\u7f51\u7edc\u670d\u52a1\u6846\u67b6\u3002<\/p>\n<p>\u4ece\u8fd9\u4e2a\u9879\u76ee\u51fa\u53d1&#xff0c;\u4f60\u53ef\u4ee5\u8fdb\u4e00\u6b65\u63a2\u7d22&#xff1a;<\/p>\n<ul>\n<li>\u5b9e\u73b0HTTP\/WebSocket\u7b49\u5e94\u7528\u5c42\u534f\u8bae<\/li>\n<li>\u96c6\u6210\u6570\u636e\u5e93\u8bbf\u95ee\u529f\u80fd<\/li>\n<li>\u5b9e\u73b0\u8d1f\u8f7d\u5747\u8861\u548c\u9ad8\u53ef\u7528\u8bbe\u8ba1<\/li>\n<li>\u63a2\u7d22\u5f02\u6b65I\/O\u548c\u534f\u7a0b\u6280\u672f<\/li>\n<\/ul>\n<p>\u7f51\u7edc\u7f16\u7a0b\u662f\u73b0\u4ee3\u8f6f\u4ef6\u5f00\u53d1\u7684\u57fa\u7840\u6280\u80fd&#xff0c;\u5e0c\u671b\u8fd9\u4e2a\u9879\u76ee\u80fd\u591f\u5e2e\u52a9\u4f60\u6253\u5f00\u7f51\u7edc\u7f16\u7a0b\u7684\u5927\u95e8&#xff0c;\u4e3a\u4f60\u7684\u6280\u672f\u6210\u957f\u63d0\u4f9b\u575a\u5b9e\u7684\u57fa\u7840\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb1.2k\u6b21\uff0c\u70b9\u8d5e29\u6b21\uff0c\u6536\u85cf32\u6b21\u3002\u672c\u9879\u76ee\u5b9e\u73b0\u4e86\u4e00\u4e2a\u5b8c\u6574\u7684TCP\u670d\u52a1\u5668\u4e0e\u5ba2\u6237\u7aef\u901a\u4fe1\u7cfb\u7edf\uff0c\u6db5\u76d6\u4e86\u7f51\u7edc\u7f16\u7a0b\u3001\u591a\u7ebf\u7a0b\u7f16\u7a0b\u3001\u7ebf\u7a0b\u6c60\u3001\u5b88\u62a4\u8fdb\u7a0b\u3001\u65e5\u5fd7\u7cfb\u7edf\u7b49\u591a\u4e2a\u6838\u5fc3\u77e5\u8bc6\u70b9\u3002\u901a\u8fc7\u6a21\u5757\u5316\u8bbe\u8ba1\u548c\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\uff0c\u6211\u4eec\u6784\u5efa\u4e86\u4e00\u4e2a\u7ed3\u6784\u6e05\u6670\u3001\u529f\u80fd\u5b8c\u5584\u7684\u7f51\u7edc\u670d\u52a1\u6846\u67b6\u3002\u5b9e\u73b0HTTP\/WebSocket\u7b49\u5e94\u7528\u5c42\u534f\u8bae\u96c6\u6210\u6570\u636e\u5e93\u8bbf\u95ee\u529f\u80fd\u5b9e\u73b0\u8d1f\u8f7d\u5747\u8861\u548c\u9ad8\u53ef\u7528\u8bbe\u8ba1\u63a2\u7d22\u5f02\u6b65I\/O\u548c\u534f\u7a0b\u6280\u672f\u7f51\u7edc\u7f16\u7a0b\u662f\u73b0\u4ee3\u8f6f\u4ef6\u5f00\u53d1\u7684\u57fa\u7840\u6280\u80fd\uff0c\u5e0c\u671b\u8fd9\u4e2a\u9879\u76ee\u80fd\u591f\u5e2e\u52a9\u4f60\u6253\u5f00\u7f51\u7edc\u7f16\u7a0b\u7684\u5927\u95e8\uff0c\u4e3a\u4f60\u7684\u6280\u672f\u6210\u957f\u63d0\u4f9b\u575a\u5b9e\u7684\u57fa\u7840\u3002_c++ tcp\u591a\u5ba2\u6237\u7aef\u901a\u4fe1<\/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":[55,58,205,1011,43,427,78,211],"topic":[],"class_list":["post-15617","post","type-post","status-publish","format-standard","hentry","category-server","tag-c","tag-linux","tag-tcp-ip","tag-visualstudio","tag-43","tag-427","tag-78","tag-211"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>04.\u57fa\u4e8eC++\u5b9e\u73b0\u591a\u7ebf\u7a0bTCP\u670d\u52a1\u5668\u4e0e\u5ba2\u6237\u7aef\u901a\u4fe1 - \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\/15617.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"04.\u57fa\u4e8eC++\u5b9e\u73b0\u591a\u7ebf\u7a0bTCP\u670d\u52a1\u5668\u4e0e\u5ba2\u6237\u7aef\u901a\u4fe1 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb1.2k\u6b21\uff0c\u70b9\u8d5e29\u6b21\uff0c\u6536\u85cf32\u6b21\u3002\u672c\u9879\u76ee\u5b9e\u73b0\u4e86\u4e00\u4e2a\u5b8c\u6574\u7684TCP\u670d\u52a1\u5668\u4e0e\u5ba2\u6237\u7aef\u901a\u4fe1\u7cfb\u7edf\uff0c\u6db5\u76d6\u4e86\u7f51\u7edc\u7f16\u7a0b\u3001\u591a\u7ebf\u7a0b\u7f16\u7a0b\u3001\u7ebf\u7a0b\u6c60\u3001\u5b88\u62a4\u8fdb\u7a0b\u3001\u65e5\u5fd7\u7cfb\u7edf\u7b49\u591a\u4e2a\u6838\u5fc3\u77e5\u8bc6\u70b9\u3002\u901a\u8fc7\u6a21\u5757\u5316\u8bbe\u8ba1\u548c\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\uff0c\u6211\u4eec\u6784\u5efa\u4e86\u4e00\u4e2a\u7ed3\u6784\u6e05\u6670\u3001\u529f\u80fd\u5b8c\u5584\u7684\u7f51\u7edc\u670d\u52a1\u6846\u67b6\u3002\u5b9e\u73b0HTTP\/WebSocket\u7b49\u5e94\u7528\u5c42\u534f\u8bae\u96c6\u6210\u6570\u636e\u5e93\u8bbf\u95ee\u529f\u80fd\u5b9e\u73b0\u8d1f\u8f7d\u5747\u8861\u548c\u9ad8\u53ef\u7528\u8bbe\u8ba1\u63a2\u7d22\u5f02\u6b65I\/O\u548c\u534f\u7a0b\u6280\u672f\u7f51\u7edc\u7f16\u7a0b\u662f\u73b0\u4ee3\u8f6f\u4ef6\u5f00\u53d1\u7684\u57fa\u7840\u6280\u80fd\uff0c\u5e0c\u671b\u8fd9\u4e2a\u9879\u76ee\u80fd\u591f\u5e2e\u52a9\u4f60\u6253\u5f00\u7f51\u7edc\u7f16\u7a0b\u7684\u5927\u95e8\uff0c\u4e3a\u4f60\u7684\u6280\u672f\u6210\u957f\u63d0\u4f9b\u575a\u5b9e\u7684\u57fa\u7840\u3002_c++ 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