{"id":83870,"date":"2026-07-26T05:33:37","date_gmt":"2026-07-25T21:33:37","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/83870.html"},"modified":"2026-07-26T05:33:37","modified_gmt":"2026-07-25T21:33:37","slug":"%e3%80%90linux%e7%bd%91%e7%bb%9c%e3%80%91%e4%bb%8e-0-%e5%88%b0%e5%b7%a5%e4%b8%9a%e7%ba%a7%ef%bc%9atcp-%e6%9c%8d%e5%8a%a1%e5%99%a8%e5%a4%9a%e7%ba%bf%e7%a8%8b-%e7%ba%bf%e7%a8%8b%e6%b1%a0%e5%85%a8","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/83870.html","title":{"rendered":"\u3010Linux\u7f51\u7edc\u3011\u4ece 0 \u5230\u5de5\u4e1a\u7ea7\uff1aTCP \u670d\u52a1\u5668\u591a\u7ebf\u7a0b \/ \u7ebf\u7a0b\u6c60\u5168\u5b9e\u73b0 + \u8fdc\u7a0b\u547d\u4ee4\u6267\u884c\u5b9e\u6218"},"content":{"rendered":"

\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

🔥\u8349\u8393\u718aLotso：\u4e2a\u4eba\u4e3b\u9875 <\/font><\/p>\n

\u2744\ufe0f\u4e2a\u4eba\u4e13\u680f: \u300aC++\u77e5\u8bc6\u5206\u4eab\u300b \u300aLinux \u5165\u95e8\u5230\u5b9e\u8df5：\u96f6\u57fa\u7840\u4e5f\u80fd\u61c2\u300b <\/font><\/p>\n

\u2728\u751f\u6d3b\u662f\u9ed8\u9ed8\u7684\u575a\u6301，\u6bc5\u529b\u662f\u6c38\u4e45\u7684\u4eab\u53d7！<\/font> <\/p>\n

\n

🎬 \u535a\u4e3b\u7b80\u4ecb：<\/font><\/p>\n

\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

\n

\u6587\u7ae0\u76ee\u5f55<\/h4>\n
    \n
  • \u524d\u8a00：<\/li>\n
  • \u4e00. TCP \u670d\u52a1\u5668\u6838\u5fc3\u6a21\u578b\u6f14\u8fdb<\/li>\n
  • \u4e8c. \u81ea\u7814\u57fa\u7840\u7ec4\u4ef6\u8f6e\u5b50\u6df1\u5ea6\u89e3\u6790<\/li>\n
  • \n
      \n
    • 2.1 \u4e92\u65a5\u9501\u4e0e RAII \u9501\u5b88\u536b（Mutex.hpp）<\/li>\n
    • 2.2 \u6761\u4ef6\u53d8\u91cf\u5c01\u88c5（Cond.hpp）<\/li>\n
    • 2.3 \u7ebf\u7a0b\u5c01\u88c5（Thread.hpp）<\/li>\n
    • 2.4 \u7b56\u7565\u6a21\u5f0f\u65e5\u5fd7\u7cfb\u7edf（Logger.hpp）<\/li>\n
    • 2.5 \u7f51\u7edc\u5730\u5740\u5c01\u88c5（InetAddr.hpp）<\/li>\n<\/ul>\n<\/li>\n
    • \u4e09. V3-1 \u591a\u8fdb\u7a0b\u7248\u672c：\u8fdc\u7a0b\u547d\u4ee4\u6267\u884c\u670d\u52a1\u5668\u5b9e\u6218<\/li>\n
    • \n
        \n
      • 3.1 \u9700\u6c42\u80cc\u666f\u4e0e\u6574\u4f53\u8bbe\u8ba1<\/li>\n
      • 3.2 \u4e1a\u52a1\u5c42：\u547d\u4ee4\u6267\u884c\u6a21\u5757\u6df1\u5ea6\u89e3\u6790（ExcuteCommand.hpp）<\/li>\n
      • 3.3 \u7f51\u7edc\u5c42：\u591a\u7ebf\u7a0b TCP \u670d\u52a1\u5668\u6df1\u5ea6\u89e3\u6790<\/li>\n
      • \n
          \n
        • 3.3.1 \u6838\u5fc3\u7c7b\u578b\u4e0e\u6210\u5458\u5b9a\u4e49<\/li>\n
        • 3.3.2 \u670d\u52a1\u7aef\u5b8c\u6574\u4ee3\u7801\u89e3\u6790（TcpServer.hpp）<\/li>\n
        • 3.3.3 \u5ba2\u6237\u7aef\u5b8c\u6574\u4ee3\u7801\u89e3\u6790<\/li>\n
        • 3.3.4 \u670d\u52a1\u7aef\u4e3b\u51fd\u6570\u4ee3\u7801（TcpServer.cc）<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n
        • \u56db. V4 \u7ebf\u7a0b\u6c60\u7248\u672c：\u9ad8\u5e76\u53d1 Echo \u670d\u52a1\u5668\u5b9e\u73b0<\/li>\n
        • \n
            \n
          • 4.1 \u7ebf\u7a0b\u6c60\u6838\u5fc3\u8bbe\u8ba1\u601d\u60f3<\/li>\n
          • 4.2 \u7ebf\u7a0b\u6c60\u6a21\u677f\u7c7b\u6df1\u5ea6\u89e3\u6790（ThreadPool.hpp）<\/li>\n
          • 4.3 \u57fa\u4e8e\u7ebf\u7a0b\u6c60\u7684 TCP Echo \u670d\u52a1\u5668\u5b9e\u73b0<\/li>\n
          • \n
              \n
            • 4.3.1 \u670d\u52a1\u5668\u6838\u5fc3\u5b9e\u73b0（TcpEchoServer.hpp）<\/li>\n
            • 4.3.2 \u670d\u52a1\u5668\u542f\u52a8\u5165\u53e3<\/li>\n<\/ul>\n<\/li>\n
            • 4.4 \u7ebf\u7a0b\u6c60\u7248\u672c\u7684\u6838\u5fc3\u4f18\u52bf<\/li>\n<\/ul>\n<\/li>\n
            • \u4e94. \u6838\u5fc3\u9762\u8bd5\u8003\u70b9\u4e0e\u5b9e\u6218\u8e29\u5751\u6307\u5357<\/li>\n
            • \n
                \n
              • 5.1 \u9ad8\u9891\u9762\u8bd5\u8003\u70b9<\/li>\n
              • 5.2 \u5b9e\u6218\u8e29\u5751\u4e0e\u907f\u5751\u65b9\u6848<\/li>\n<\/ul>\n<\/li>\n
              • \u7ed3\u5c3e：<\/li>\n<\/ul>\n
                \n

                \u524d\u8a00：<\/h2>\n

                \u5728 Linux \u540e\u7aef\u5f00\u53d1\u4e2d，TCP \u670d\u52a1\u5668\u662f\u7f51\u7edc\u7f16\u7a0b\u7684\u6838\u5fc3\u57fa\u77f3，\u4ece\u5165\u95e8\u7ea7\u7684\u5355\u8fdb\u7a0b Echo \u670d\u52a1\u5668，\u5230\u751f\u4ea7\u73af\u5883\u652f\u6491\u9ad8\u5e76\u53d1\u7684\u7ebf\u7a0b\u6c60\u670d\u52a1\u5668，\u5176\u6f14\u8fdb\u8fc7\u7a0b\u4e0d\u4ec5\u662f\u4ee3\u7801\u7684\u4f18\u5316，\u66f4\u662f\u5bf9\u64cd\u4f5c\u7cfb\u7edf\u8fdb\u7a0b \/ \u7ebf\u7a0b\u6a21\u578b\u3001\u7f51\u7edc IO\u3001\u5e76\u53d1\u7f16\u7a0b\u7684\u6df1\u5ea6\u7406\u89e3\u3002\u800c\u8fdc\u7a0b\u547d\u4ee4\u6267\u884c\u4f5c\u4e3a TCP \u670d\u52a1\u5668\u7684\u7ecf\u5178\u4e1a\u52a1\u573a\u666f，\u66f4\u662f\u590d\u523b\u4e86 SSH\u3001\u8fd0\u7ef4\u7ba1\u63a7\u5e73\u53f0\u7684\u6838\u5fc3\u5b9e\u73b0\u903b\u8f91，\u540c\u65f6\u4e5f\u662f\u540e\u7aef\u5f00\u53d1\u9762\u8bd5\u4e2d\u7684\u9ad8\u9891\u624b\u5199\u9898\u4e0e\u6df1\u5ea6\u95ee\u7b54\u8003\u70b9\u3002\u672c\u6587\u5c06\u4ece\u81ea\u7814\u57fa\u7840\u7ec4\u4ef6\u5c01\u88c5\u51fa\u53d1，\u5b8c\u6574\u62c6\u89e3\u591a\u7ebf\u7a0b\u8fdc\u7a0b\u547d\u4ee4\u6267\u884c\u670d\u52a1\u5668\u4e0e\u7ebf\u7a0b\u6c60\u9ad8\u5e76\u53d1 Echo \u670d\u52a1\u5668\u7684\u5de5\u4e1a\u7ea7\u5b9e\u73b0，\u9010\u884c\u89e3\u6790\u6838\u5fc3\u6e90\u7801，\u68b3\u7406 TCP \u670d\u52a1\u5668\u6a21\u578b\u7684\u6f14\u8fdb\u903b\u8f91，\u540c\u65f6\u8986\u76d6\u5e76\u53d1\u7f16\u7a0b\u7684\u6838\u5fc3\u5751\u70b9\u4e0e\u9762\u8bd5\u9ad8\u9891\u8003\u70b9，\u8ba9\u4f60\u4e0d\u4ec5\u80fd\u5199\u5f97\u51fa，\u66f4\u80fd\u61c2\u5e95\u5c42\u3001\u8bb2\u660e\u767d\u3002<\/p>\n

                \n

                \u4e00. TCP \u670d\u52a1\u5668\u6838\u5fc3\u6a21\u578b\u6f14\u8fdb<\/h2>\n

                \u5728\u6b63\u5f0f\u8fdb\u5165\u4ee3\u7801\u5b9e\u6218\u524d，\u6211\u4eec\u5148\u7406\u6e05 TCP \u670d\u52a1\u5668\u7684\u56db\u5927\u6838\u5fc3\u6a21\u578b\u7684\u6f14\u8fdb\u903b\u8f91，\u660e\u786e\u6bcf\u4e2a\u6a21\u578b\u7684\u4f18\u52a3\u4e0e\u9002\u7528\u573a\u666f，\u8fd9\u4e5f\u662f\u9762\u8bd5\u4e2d\u6700\u57fa\u7840\u7684\u5fc5\u8003\u9898\u3002<\/p>\n\n\u670d\u52a1\u5668\u6a21\u578b\u6838\u5fc3\u5b9e\u73b0\u6838\u5fc3\u4f18\u52bf\u6838\u5fc3\u52a3\u52bf\u9002\u7528\u573a\u666f<\/tr>\n\n\n\n\n\n
                \u5355\u8fdb\u7a0b\u6a21\u578b<\/td>\naccept \u540e\u4e32\u884c\u5904\u7406\u5ba2\u6237\u7aef\u8fde\u63a5<\/td>\n\u4ee3\u7801\u7b80\u5355\u3001\u65e0\u5e76\u53d1\u5b89\u5168\u95ee\u9898<\/td>\n\u4e00\u6b21\u53ea\u80fd\u5904\u7406\u4e00\u4e2a\u8fde\u63a5，\u5b8c\u5168\u4e0d\u652f\u6301\u5e76\u53d1<\/td>\n\u5165\u95e8\u5b66\u4e60\u3001\u5355\u5ba2\u6237\u7aef\u56fa\u5b9a\u573a\u666f<\/td>\n<\/tr>\n
                \u591a\u8fdb\u7a0b\u6a21\u578b<\/td>\n\u6bcf\u4e2a\u5ba2\u6237\u7aef\u8fde\u63a5 fork \u4e00\u4e2a\u5b50\u8fdb\u7a0b\u5904\u7406<\/td>\n\u8fdb\u7a0b\u5730\u5740\u7a7a\u95f4\u9694\u79bb，\u7a33\u5b9a\u6027\u6781\u9ad8<\/td>\n\u8fdb\u7a0b\u521b\u5efa\/\u9500\u6bc1\u5f00\u9500\u5927，\u5e76\u53d1\u4e0a\u9650\u4f4e<\/td>\n\u957f\u8fde\u63a5\u3001\u4f4e\u5e76\u53d1\u3001\u9ad8\u7a33\u5b9a\u6027\u8981\u6c42\u573a\u666f<\/td>\n<\/tr>\n
                \u591a\u7ebf\u7a0b\u6a21\u578b<\/td>\n\u6bcf\u4e2a\u5ba2\u6237\u7aef\u8fde\u63a5\u521b\u5efa\u4e00\u4e2a\u7ebf\u7a0b\u5904\u7406<\/td>\n\u7ebf\u7a0b\u5f00\u9500\u8fdc\u5c0f\u4e8e\u8fdb\u7a0b，\u5171\u4eab\u5730\u5740\u7a7a\u95f4\u901a\u4fe1\u4fbf\u6377<\/td>\n\u9891\u7e41\u521b\u5efa\u9500\u6bc1\u7ebf\u7a0b\u6709\u5f00\u9500，\u7ebf\u7a0b\u8fc7\u591a\u4f1a\u5bfc\u81f4\u7cfb\u7edf\u8c03\u5ea6\u538b\u529b\u5267\u589e<\/td>\n\u4e2d\u7b49\u5e76\u53d1\u3001\u4e2d\u77ed\u8fde\u63a5\u573a\u666f<\/td>\n<\/tr>\n
                \u7ebf\u7a0b\u6c60\u6a21\u578b<\/td>\n\u9884\u521b\u5efa\u56fa\u5b9a\u6570\u91cf\u7ebf\u7a0b，\u4efb\u52a1\u5165\u961f\u540e\u7ebf\u7a0b\u6c60\u8c03\u5ea6\u6267\u884c<\/td>\n\u907f\u514d\u7ebf\u7a0b\u9891\u7e41\u521b\u5efa\u9500\u6bc1\u5f00\u9500，\u9650\u5236\u6700\u5927\u7ebf\u7a0b\u6570，\u63a7\u5236\u7cfb\u7edf\u8c03\u5ea6\u538b\u529b<\/td>\n\u4e0d\u9002\u5408\u957f\u8fde\u63a5\u573a\u666f（\u957f\u8fde\u63a5\u4f1a\u957f\u671f\u5360\u7528\u5de5\u4f5c\u7ebf\u7a0b）<\/td>\n\u77ed\u8fde\u63a5\u3001\u9ad8\u5e76\u53d1\u3001\u7a81\u53d1\u6d41\u91cf\u573a\u666f<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                \u6838\u5fc3\u5173\u952e\u7ed3\u8bba：\u7ebf\u7a0b\u6c60\u7248\u672c\u4ec5\u9002\u5408\u77ed\u670d\u52a1 \/ \u77ed\u8fde\u63a5\u573a\u666f\u3002\u5982\u679c\u7528\u7ebf\u7a0b\u6c60\u5904\u7406\u957f\u8fde\u63a5，\u4e00\u4e2a\u8fde\u63a5\u4f1a\u957f\u671f\u5360\u7528\u4e00\u4e2a\u5de5\u4f5c\u7ebf\u7a0b，\u5f53\u7ebf\u7a0b\u6c60\u7ebf\u7a0b\u8017\u5c3d\u540e，\u65b0\u7684\u5ba2\u6237\u7aef\u5c06\u5b8c\u5168\u65e0\u6cd5\u5efa\u7acb\u8fde\u63a5，\u8fd9\u662f\u65b0\u624b\u6700\u5bb9\u6613\u8e29\u7684\u5751\u3002<\/p>\n

                \n

                \u4e8c. \u81ea\u7814\u57fa\u7840\u7ec4\u4ef6\u8f6e\u5b50\u6df1\u5ea6\u89e3\u6790<\/h2>\n

                \u672c\u6587\u6240\u6709\u670d\u52a1\u5668\u5b9e\u73b0，\u5747\u57fa\u4e8e\u81ea\u7814\u7684 Linux \u7cfb\u7edf\u7f16\u7a0b\u7ec4\u4ef6\u5c01\u88c5，\u8fd9\u4e9b\u7ec4\u4ef6\u4e0d\u4ec5\u5c4f\u853d\u4e86\u539f\u751f C \u63a5\u53e3\u7684\u7e41\u7410\u7ec6\u8282，\u66f4\u662f\u89e3\u51b3\u4e86\u5e76\u53d1\u5b89\u5168\u3001\u8d44\u6e90\u6cc4\u6f0f\u7b49\u7ecf\u5178\u95ee\u9898\u3002<\/p>\n

                2.1 \u4e92\u65a5\u9501\u4e0e RAII \u9501\u5b88\u536b（Mutex.hpp）<\/h3>\n

                \u4e92\u65a5\u9501\u662f\u5e76\u53d1\u7f16\u7a0b\u7684\u57fa\u77f3，\u7528\u4e8e\u4fdd\u62a4\u4e34\u754c\u8d44\u6e90\u7684\u539f\u5b50\u8bbf\u95ee；\u800c RAII \u98ce\u683c\u7684\u9501\u5b88\u536b，\u662f C++ \u4e2d\u907f\u514d\u9501\u6cc4\u6f0f\u3001\u6b7b\u9501\u7684\u6700\u4f73\u5b9e\u8df5\u3002<\/p>\n

                #<\/span>ifndef<\/span> MUTEX_HPP<\/span><\/span>
                \n#<\/span>define<\/span> MUTEX_HPP<\/span><\/span><\/p>\n

                #<\/span>include<\/span> <iostream><\/span><\/span>
                \n#<\/span>include<\/span> <pthread.h><\/span><\/span><\/p>\n

                \/\/ \u4e92\u65a5\u9501\u5c01\u88c5\u7c7b：\u63d0\u4f9b\u52a0\u9501\/\u89e3\u9501\u53ca\u83b7\u53d6\u539f\u59cb\u9501\u7684\u63a5\u53e3<\/span>
                \nclass<\/span> Mutex<\/span>
                \n{<\/span>
                \npublic<\/span>:<\/span>
                \n \/\/ \u6784\u9020\u51fd\u6570：\u521d\u59cb\u5316\u4e92\u65a5\u9501<\/span>
                \n Mutex<\/span>(<\/span>)<\/span>
                \n {<\/span>
                \n pthread_mutex_init<\/span>(<\/span>&<\/span>_lock,<\/span> nullptr<\/span>)<\/span>;<\/span>
                \n }<\/span>
                \n \/\/ \u6790\u6784\u51fd\u6570：\u9500\u6bc1\u4e92\u65a5\u9501<\/span>
                \n ~<\/span>Mutex<\/span>(<\/span>)<\/span>
                \n {<\/span>
                \n pthread_mutex_destroy<\/span>(<\/span>&<\/span>_lock)<\/span>;<\/span>
                \n }<\/span>
                \n \/\/ \u52a0\u9501\u64cd\u4f5c<\/span>
                \n void<\/span> Lock<\/span>(<\/span>)<\/span>
                \n {<\/span>
                \n pthread_mutex_lock<\/span>(<\/span>&<\/span>_lock)<\/span>;<\/span>
                \n }<\/span>
                \n \/\/ \u89e3\u9501\u64cd\u4f5c<\/span>
                \n void<\/span> UnLock<\/span>(<\/span>)<\/span>
                \n {<\/span>
                \n pthread_mutex_unlock<\/span>(<\/span>&<\/span>_lock)<\/span>;<\/span>
                \n }<\/span>
                \n \/\/ \u83b7\u53d6\u539f\u59cb\u4e92\u65a5\u9501\u6307\u9488，\u7528\u4e8e\u9700\u8981\u539f\u751f pthread_mutex_t \u7684\u63a5\u53e3<\/span>
                \n pthread_mutex_t*<\/span> Origin<\/span>(<\/span>)<\/span>
                \n {<\/span>
                \n return<\/span> &<\/span>_lock;<\/span>
                \n }<\/span>
                \nprivate<\/span>:<\/span>
                \n pthread_mutex_t _lock;<\/span> \/\/ POSIX \u4e92\u65a5\u9501<\/span>
                \n}<\/span>;<\/span><\/p>\n

                \/\/ RAII \u98ce\u683c\u7684\u9501\u5b88\u536b\u7c7b：\u6784\u9020\u65f6\u52a0\u9501，\u6790\u6784\u65f6\u89e3\u9501，\u81ea\u52a8\u7ba1\u7406\u9501\u7684\u751f\u547d\u5468\u671f<\/span>
                \nclass<\/span> LockGuard<\/span>
                \n{<\/span>
                \npublic<\/span>:<\/span>
                \n \/\/ \u6784\u9020\u51fd\u6570：\u63a5\u6536\u4e00\u4e2a Mutex \u6307\u9488，\u5e76\u7acb\u5373\u52a0\u9501<\/span>
                \n LockGuard<\/span>(<\/span>Mutex*<\/span> lockptr)<\/span> :<\/span> _lockptr<\/span>(<\/span>lockptr)<\/span>
                \n {<\/span>
                \n _lockptr-><\/span>Lock<\/span>(<\/span>)<\/span>;<\/span>
                \n }<\/span>
                \n \/\/ \u6790\u6784\u51fd\u6570：\u81ea\u52a8\u89e3\u9501<\/span>
                \n ~<\/span>LockGuard<\/span>(<\/span>)<\/span>
                \n {<\/span>
                \n _lockptr-><\/span>UnLock<\/span>(<\/span>)<\/span>;<\/span>
                \n }<\/span>
                \nprivate<\/span>:<\/span>
                \n Mutex*<\/span> _lockptr;<\/span> \/\/ \u6307\u5411\u88ab\u7ba1\u7406\u7684\u4e92\u65a5\u9501<\/span>
                \n}<\/span>;<\/span><\/p>\n

                #<\/span>endif<\/span><\/span><\/p>\n

                \u6e90\u7801\u6838\u5fc3\u89e3\u8bfb：<\/p>\n

                  \n
                • \u63a5\u53e3\u6781\u7b80\u8bbe\u8ba1：\u5c01\u88c5\u4e86\u539f\u751fpthread_mutex\u7684\u6838\u5fc3\u64cd\u4f5c，\u540c\u65f6\u63d0\u4f9bOrigin()\u63a5\u53e3，\u65b9\u4fbf\u4e0e\u6761\u4ef6\u53d8\u91cf\u7b49\u539f\u751f C \u63a5\u53e3\u914d\u5408\u4f7f\u7528\u3002<\/li>\n
                • RAII \u673a\u5236\u4fdd\u969c：LockGuard\u5728\u5bf9\u8c61\u6784\u9020\u65f6\u81ea\u52a8\u52a0\u9501，\u751f\u547d\u5468\u671f\u7ed3\u675f\u65f6\u81ea\u52a8\u89e3\u9501，\u65e0\u8bba\u51fd\u6570\u6b63\u5e38\u8fd4\u56de\u3001\u5f02\u5e38\u629b\u51fa，\u90fd\u80fd\u4fdd\u8bc1\u9501\u88ab\u91ca\u653e，\u5f7b\u5e95\u907f\u514d\u9501\u6cc4\u6f0f\u3002<\/li>\n
                • \u4f7f\u7528\u573a\u666f：\u6240\u6709\u4e34\u754c\u8d44\u6e90\u7684\u8bbf\u95ee（\u5982\u7ebf\u7a0b\u6c60\u4efb\u52a1\u961f\u5217\u3001\u65e5\u5fd7\u6587\u4ef6\u5199\u5165）\u90fd\u901a\u8fc7LockGuard\u4fdd\u62a4，\u65e0\u9700\u624b\u52a8\u8c03\u7528unlock，\u4ee3\u7801\u66f4\u5065\u58ee\u3002<\/li>\n<\/ul>\n

                  2.2 \u6761\u4ef6\u53d8\u91cf\u5c01\u88c5（Cond.hpp）<\/h3>\n

                  \u6761\u4ef6\u53d8\u91cf\u7528\u4e8e\u7ebf\u7a0b\u95f4\u7684\u901a\u77e5\u673a\u5236，\u914d\u5408\u4e92\u65a5\u9501\u5b9e\u73b0\u751f\u4ea7\u8005 – \u6d88\u8d39\u8005\u6a21\u578b，\u662f\u7ebf\u7a0b\u6c60\u7684\u6838\u5fc3\u540c\u6b65\u7ec4\u4ef6\u3002<\/p>\n

                  #<\/span>ifndef<\/span> COND_HPP<\/span><\/span>
                  \n#<\/span>define<\/span> COND_HPP<\/span><\/span><\/p>\n

                  #<\/span>include<\/span> <iostream><\/span><\/span>
                  \n#<\/span>include<\/span> <pthread.h><\/span><\/span>
                  \n#<\/span>include<\/span> "Mutex.hpp"<\/span><\/span><\/p>\n

                  \/**
                  \n * @brief \u6761\u4ef6\u53d8\u91cf\u5c01\u88c5\u7c7b
                  \n * \u6838\u5fc3\u903b\u8f91：\u63d0\u4f9b\u7ebf\u7a0b\u95f4\u7684\u901a\u77e5\u673a\u5236\u3002
                  \n * \u5b83\u5141\u8bb8\u7ebf\u7a0b\u5728\u67d0\u4e9b\u6761\u4ef6\u4e0d\u6ee1\u8db3\u65f6\u6302\u8d77，\u5e76\u5728\u5176\u4ed6\u7ebf\u7a0b\u6539\u53d8\u6761\u4ef6\u5e76\u53d1\u9001\u4fe1\u53f7\u65f6\u88ab\u5524\u9192\u3002
                  \n *\/<\/span>
                  \nclass<\/span> Cond<\/span>
                  \n{<\/span>
                  \npublic<\/span>:<\/span>
                  \n \/\/ \u6784\u9020\u51fd\u6570：\u521d\u59cb\u5316\u6761\u4ef6\u53d8\u91cf<\/span>
                  \n Cond<\/span>(<\/span>)<\/span>
                  \n {<\/span>
                  \n \/\/ nullptr \u8868\u793a\u4f7f\u7528\u64cd\u4f5c\u7cfb\u7edf\u9ed8\u8ba4\u7684\u6761\u4ef6\u53d8\u91cf\u5c5e\u6027<\/span>
                  \n pthread_cond_init<\/span>(<\/span>&<\/span>cond,<\/span> nullptr<\/span>)<\/span>;<\/span>
                  \n }<\/span><\/p>\n

                  \/**
                  \n * @brief \u7b49\u5f85\u6761\u4ef6\u6ee1\u8db3
                  \n * @param mutex \u5fc5\u987b\u662f\u5f53\u524d\u7ebf\u7a0b\u5df2\u7ecf\u6301\u6709\u7684\u4e92\u65a5\u9501
                  \n * * \u5e95\u5c42\u903b\u8f91\u201c\u4e09\u6b65\u8df3\u201d：
                  \n * 1. \u81ea\u52a8\u91ca\u653e\u4f20\u5165\u7684 mutex \u9501（\u8fd9\u6837\u5176\u4ed6\u7ebf\u7a0b\u624d\u80fd\u4fee\u6539\u4e34\u754c\u8d44\u6e90）\u3002
                  \n * 2. \u5c06\u5f53\u524d\u7ebf\u7a0b\u6302\u8d77\u5e76\u52a0\u5165\u5230\u8be5\u6761\u4ef6\u53d8\u91cf\u7684\u7b49\u5f85\u961f\u5217\u4e2d\u3002
                  \n * 3. \u5f53\u88ab\u5524\u9192\u8fd4\u56de\u65f6，\u4f1a\u81ea\u52a8\u5c1d\u8bd5\u91cd\u65b0\u7ade\u4e89\u5e76\u6301\u6709\u8be5 mutex \u9501\u3002
                  \n *\/<\/span>
                  \n void<\/span> Wait<\/span>(<\/span>Mutex &<\/span>mutex)<\/span>
                  \n {<\/span>
                  \n \/\/ \u8c03\u7528\u5c01\u88c5\u597d\u7684 Mutex \u7c7b\u7684 Origin() \u63a5\u53e3，\u914d\u5408\u5e95\u5c42 C \u63a5\u53e3\u4f7f\u7528<\/span>
                  \n pthread_cond_wait<\/span>(<\/span>&<\/span>cond,<\/span> mutex.<\/span>Origin<\/span>(<\/span>)<\/span>)<\/span>;<\/span>
                  \n }<\/span><\/p>\n

                  \/\/ \u5524\u9192\u4e00\u4e2a\u5728\u6b64\u6761\u4ef6\u53d8\u91cf\u4e0b\u7b49\u5f85\u7684\u7ebf\u7a0b<\/span>
                  \n void<\/span> NotifyOne<\/span>(<\/span>)<\/span>
                  \n {<\/span>
                  \n \/\/ \u5524\u9192\u961f\u5217\u4e2d\u7684\u7b2c\u4e00\u4e2a\u7ebf\u7a0b（\u5982\u679c\u5b58\u5728）<\/span>
                  \n pthread_cond_signal<\/span>(<\/span>&<\/span>cond)<\/span>;<\/span>
                  \n }<\/span><\/p>\n

                  \/\/ \u5524\u9192\u6240\u6709\u5728\u6b64\u6761\u4ef6\u53d8\u91cf\u4e0b\u7b49\u5f85\u7684\u7ebf\u7a0b<\/span>
                  \n void<\/span> NotifyAll<\/span>(<\/span>)<\/span>
                  \n {<\/span>
                  \n \/\/ \u5e7f\u64ad\u901a\u77e5，\u5e38\u7528\u4e8e\u591a\u4e2a\u6d88\u8d39\u8005\u6216\u590d\u6742\u7684\u8d44\u6e90\u53d8\u52a8\u573a\u666f<\/span>
                  \n pthread_cond_broadcast<\/span>(<\/span>&<\/span>cond)<\/span>;<\/span>
                  \n }<\/span><\/p>\n

                  \/\/ \u6790\u6784\u51fd\u6570：\u9500\u6bc1\u6761\u4ef6\u53d8\u91cf\u8d44\u6e90<\/span>
                  \n ~<\/span>Cond<\/span>(<\/span>)<\/span>
                  \n {<\/span>
                  \n \/**
                  \n * \u6ce8\u610f\u4e8b\u9879：
                  \n * \u9500\u6bc1\u4e00\u4e2a\u4ecd\u6709\u7ebf\u7a0b\u5728\u7b49\u5f85\u7684\u6761\u4ef6\u53d8\u91cf\u662f\u5371\u9669\u884c\u4e3a\u3002
                  \n * \u5728\u7ebf\u7a0b\u6c60\u9500\u6bc1\u524d，\u901a\u5e38\u9700\u8981\u5148\u8c03\u7528 NotifyAll \u5e76\u56de\u6536\u6240\u6709\u7ebf\u7a0b\u3002
                  \n *\/<\/span>
                  \n pthread_cond_destroy<\/span>(<\/span>&<\/span>cond)<\/span>;<\/span>
                  \n }<\/span><\/p>\n

                  private<\/span>:<\/span>
                  \n pthread_cond_t cond;<\/span> \/\/ POSIX \u7ebf\u7a0b\u5e93\u63d0\u4f9b\u7684\u5e95\u5c42\u6761\u4ef6\u53d8\u91cf\u7ed3\u6784<\/span>
                  \n}<\/span>;<\/span><\/p>\n

                  #<\/span>endif<\/span><\/span><\/p>\n

                  \u6e90\u7801\u6838\u5fc3\u89e3\u8bfb：<\/p>\n

                    \n
                  • Wait \u51fd\u6570\u7684\u5e95\u5c42 \u201c\u4e09\u6b65\u8df3\u201d：\u8fd9\u662f\u6761\u4ef6\u53d8\u91cf\u6700\u6838\u5fc3\u7684\u8003\u70b9\n
                      \n
                    • \u81ea\u52a8\u91ca\u653e\u4f20\u5165\u7684\u4e92\u65a5\u9501，\u8ba9\u5176\u4ed6\u7ebf\u7a0b\u53ef\u4ee5\u4fee\u6539\u4e34\u754c\u8d44\u6e90<\/li>\n
                    • \u5c06\u5f53\u524d\u7ebf\u7a0b\u6302\u8d77，\u52a0\u5165\u6761\u4ef6\u53d8\u91cf\u7684\u7b49\u5f85\u961f\u5217<\/li>\n
                    • \u88ab\u5524\u9192\u8fd4\u56de\u65f6，\u81ea\u52a8\u91cd\u65b0\u7ade\u4e89\u5e76\u6301\u6709\u4e92\u65a5\u9501<\/li>\n<\/ul>\n<\/li>\n
                    • \u5524\u9192\u673a\u5236\u533a\u5206：NotifyOne\u7528\u4e8e\u5e38\u89c4\u4efb\u52a1\u901a\u77e5，NotifyAll\u7528\u4e8e\u7ebf\u7a0b\u6c60\u4f18\u96c5\u9000\u51fa\u7b49\u9700\u8981\u5524\u9192\u6240\u6709\u7ebf\u7a0b\u7684\u573a\u666f\u3002<\/li>\n
                    • \u4f7f\u7528\u89c4\u8303：\u6761\u4ef6\u53d8\u91cf\u7684\u7b49\u5f85\u5fc5\u987b\u914d\u5408while\u5faa\u73af（\u800c\u975e if），\u907f\u514d\u865a\u5047\u5524\u9192，\u8fd9\u4e00\u70b9\u5728\u7ebf\u7a0b\u6c60\u5b9e\u73b0\u4e2d\u4f1a\u91cd\u70b9\u4f53\u73b0\u3002<\/li>\n<\/ul>\n

                      2.3 \u7ebf\u7a0b\u5c01\u88c5（Thread.hpp）<\/h3>\n

                      \u5bf9\u539f\u751f POSIX \u7ebf\u7a0b\u5e93\u8fdb\u884c C++ \u5c01\u88c5，\u89e3\u51b3\u4e86\u7c7b\u6210\u5458\u51fd\u6570\u4f5c\u4e3a\u7ebf\u7a0b\u5165\u53e3\u7684\u53c2\u6570\u5339\u914d\u95ee\u9898，\u540c\u65f6\u63d0\u4f9b\u4e86\u7ebf\u7a0b\u547d\u540d\u3001LWP \u83b7\u53d6\u3001\u72b6\u6001\u7ba1\u7406\u7b49\u5b9e\u7528\u80fd\u529b\u3002<\/p>\n

                      #<\/span>ifndef<\/span> __THREAD_HPP<\/span><\/span>
                      \n#<\/span>define<\/span> __THREAD_HPP<\/span><\/span><\/p>\n

                      #<\/span>include<\/span> <iostream><\/span><\/span>
                      \n#<\/span>include<\/span> <string><\/span><\/span>
                      \n#<\/span>include<\/span> <functional><\/span><\/span>
                      \n#<\/span>include<\/span> <pthread.h><\/span><\/span>
                      \n#<\/span>include<\/span> <unistd.h><\/span><\/span>
                      \n#<\/span>include<\/span> <sys\/types.h><\/span><\/span>
                      \n#<\/span>include<\/span> <sys\/syscall.h><\/span><\/span><\/p>\n

                      \/\/ \u5b9a\u4e49\u7ebf\u7a0b\u6267\u884c\u7684\u4efb\u52a1\u7c7b\u578b，\u4f7f\u7528\u5305\u88c5\u5668\u589e\u5f3a\u7075\u6d3b\u6027<\/span>
                      \nusing<\/span> func_t =<\/span> std::<\/span>function<<\/span>void<\/span>(<\/span>)<\/span>><\/span>;<\/span><\/p>\n

                      \/\/ \u7ebf\u7a0b\u72b6\u6001\u679a\u4e3e：\u7528\u4e8e\u6784\u5efa\u7b80\u5355\u7684\u72b6\u6001\u673a，\u786e\u4fdd\u62a4\u6cd5\u64cd\u4f5c<\/span>
                      \nenum<\/span> class<\/span> TSTAYUS<\/span>
                      \n{<\/span>
                      \n THREAD_NEW,<\/span> \/\/ \u65b0\u5efa\u72b6\u6001<\/span>
                      \n THREAD_RUNNING,<\/span> \/\/ \u8fd0\u884c\u72b6\u6001<\/span>
                      \n THREAD_STOPPED,<\/span> \/\/ \u505c\u6b62\/\u9000\u51fa\u72b6\u6001<\/span>
                      \n}<\/span>;<\/span><\/p>\n

                      \/\/ \u8fd9\u4e2a\u662f\u6709\u70b9bug\u7684：\u5168\u5c40\u9759\u6001\u53d8\u91cf\u5728\u591a\u7ebf\u7a0b\u5e76\u53d1\u521b\u5efa\u5bf9\u8c61\u65f6\u5b58\u5728\u201c\u7ade\u6001\u6761\u4ef6\u201d<\/span>
                      \n\/\/ \u591a\u4e2a\u7ebf\u7a0b\u53ef\u80fd\u540c\u65f6\u6267\u884c gunm++，\u5bfc\u81f4\u7ebf\u7a0b\u7f16\u53f7\u91cd\u590d，\u751f\u4ea7\u73af\u5883\u4e0b\u5efa\u8bae\u4f7f\u7528 std::atomic<int><\/span>
                      \nstatic<\/span> int<\/span> gunm =<\/span> 1<\/span>;<\/span><\/p>\n

                      class<\/span> Thread<\/span>
                      \n{<\/span>
                      \nprivate<\/span>:<\/span>
                      \n \/\/ \u83b7\u53d6\u6240\u5c5e\u8fdb\u7a0b\u7684 PID<\/span>
                      \n void<\/span> get_pid<\/span>(<\/span>)<\/span>
                      \n {<\/span>
                      \n _pid =<\/span> getpid<\/span>(<\/span>)<\/span>;<\/span>
                      \n }<\/span>
                      \n \/\/ \u83b7\u53d6\u5185\u6838\u7ea7\u7ebf\u7a0b ID (LWP ID)，\u8fd9\u624d\u662f Linux \u7cfb\u7edf\u76d1\u63a7（\u5982 top -H）\u770b\u5230\u7684\u771f\u6b63 ID<\/span>
                      \n void<\/span> get_lwid<\/span>(<\/span>)<\/span>
                      \n {<\/span>
                      \n \/\/ \u539f\u751f pthread \u5e93\u6ca1\u6709\u76f4\u63a5\u83b7\u53d6 LWP \u7684\u63a5\u53e3，\u5fc5\u987b\u901a\u8fc7\u7cfb\u7edf\u8c03\u7528<\/span>
                      \n _lwid =<\/span> syscall<\/span>(<\/span>SYS_gettid)<\/span>;<\/span>
                      \n }<\/span><\/p>\n

                      \/**
                      \n * @brief \u9759\u6001\u6210\u5458\u51fd\u6570\u4f5c\u4e3a\u7ebf\u7a0b\u5165\u53e3\u70b9
                      \n * \u5173\u952e\u903b\u8f91：pthread_create \u8981\u6c42\u56de\u8c03\u51fd\u6570\u5fc5\u987b\u662f void* (*)(void*)
                      \n * \u7c7b\u7684\u666e\u901a\u6210\u5458\u51fd\u6570\u9690\u542b this \u6307\u9488，\u53c2\u6570\u4e0d\u5339\u914d，\u6545\u5fc5\u987b\u8bbe\u4e3a static\u3002
                      \n * \u901a\u8fc7\u4f20\u5165 args (this \u6307\u9488) \u91cd\u65b0\u627e\u56de\u5bf9\u8c61\u4e0a\u4e0b\u6587\u3002
                      \n *\/<\/span>
                      \n static<\/span> void<\/span>*<\/span> routine<\/span>(<\/span>void<\/span>*<\/span> args)<\/span>
                      \n {<\/span>
                      \n Thread*<\/span> ts =<\/span> static_cast<\/span><<\/span>Thread*<\/span>><\/span><\/span><\/span>(<\/span>args)<\/span>;<\/span>
                      \n ts-><\/span>get_pid<\/span>(<\/span>)<\/span>;<\/span>
                      \n ts-><\/span>get_lwid<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

                      \/\/ \u4e3a\u7ebf\u7a0b\u8bbe\u7f6e\u540d\u5b57，\u65b9\u4fbf\u5728\u8c03\u8bd5\u5668（\u5982 gdb）\u4e2d\u8bc6\u522b<\/span>
                      \n pthread_setname_np<\/span>(<\/span>pthread_self<\/span>(<\/span>)<\/span>,<\/span> ts-><\/span>Name<\/span>(<\/span>)<\/span>.<\/span>c_str<\/span>(<\/span>)<\/span>)<\/span>;<\/span><\/p>\n

                      \/\/ \u6267\u884c\u7528\u6237\u771f\u6b63\u4f20\u5165\u7684\u4efb\u52a1<\/span>
                      \n ts-><\/span>_func<\/span>(<\/span>)<\/span>;<\/span>
                      \n return<\/span> nullptr<\/span>;<\/span>
                      \n }<\/span><\/p>\n

                      public<\/span>:<\/span>
                      \n \/\/ \u6784\u9020\u51fd\u6570：\u5b8c\u6210\u4efb\u52a1\u7ed1\u5b9a\u4e0e\u547d\u540d，\u6b64\u65f6\u7ebf\u7a0b\u5c1a\u672a\u5728\u5185\u6838\u4e2d\u521b\u5efa<\/span>
                      \n Thread<\/span>(<\/span>func_t f)<\/span> :<\/span> _func<\/span>(<\/span>f)<\/span>,<\/span> _joinable<\/span>(<\/span>true<\/span>)<\/span>,<\/span> _status<\/span>(<\/span>TSTAYUS::<\/span>THREAD_NEW)<\/span>
                      \n {<\/span>
                      \n _name =<\/span> "Worker-"<\/span> +<\/span> std::<\/span>to_string<\/span>(<\/span>gunm++<\/span>)<\/span>;<\/span>
                      \n }<\/span><\/p>\n

                      \/\/ \u542f\u52a8\u7ebf\u7a0b：\u6b63\u5f0f\u8c03\u7528\u5e95\u5c42\u63a5\u53e3<\/span>
                      \n void<\/span> start<\/span>(<\/span>)<\/span>
                      \n {<\/span>
                      \n if<\/span>(<\/span>_status ==<\/span> TSTAYUS::<\/span>THREAD_RUNNING)<\/span>
                      \n {<\/span>
                      \n std::<\/span>cerr <<<\/span> "thread is already running"<\/span> <<<\/span> std::<\/span>endl;<\/span>
                      \n return<\/span>;<\/span>
                      \n }<\/span><\/p>\n

                      \/\/ \u4f20\u5165 this \u4f5c\u4e3a routine \u7684\u53c2\u6570，\u5b9e\u73b0 C \u5230 C++ \u7684\u8de8\u8d8a<\/span>
                      \n int<\/span> n =<\/span> pthread_create<\/span>(<\/span>&<\/span>_tid,<\/span> nullptr<\/span>,<\/span> routine,<\/span> this<\/span>)<\/span>;<\/span>
                      \n if<\/span>(<\/span>n !=<\/span> 0<\/span>)<\/span>
                      \n {<\/span>
                      \n std::<\/span>cerr <<<\/span> "pthread_create failed"<\/span> <<<\/span> std::<\/span>endl;<\/span>
                      \n }<\/span>
                      \n _status =<\/span> TSTAYUS::<\/span>THREAD_RUNNING;<\/span>
                      \n }<\/span><\/p>\n

                      \/\/ \u505c\u6b62\u7ebf\u7a0b：\u901a\u8fc7\u53d1\u9001\u53d6\u6d88\u8bf7\u6c42<\/span>
                      \n void<\/span> stop<\/span>(<\/span>)<\/span>
                      \n {<\/span>
                      \n if<\/span>(<\/span>_status ==<\/span> TSTAYUS::<\/span>THREAD_RUNNING)<\/span>
                      \n {<\/span>
                      \n \/\/ pthread_cancel \u662f\u6bd4\u8f83\u66b4\u529b\u7684\u9000\u51fa\u65b9\u5f0f，\u4f9d\u8d56\u7ebf\u7a0b\u5185\u90e8\u662f\u5426\u5b58\u5728\u53d6\u6d88\u70b9<\/span>
                      \n int<\/span> n =<\/span> pthread_cancel<\/span>(<\/span>_tid)<\/span>;<\/span>
                      \n if<\/span>(<\/span>n !=<\/span> 0<\/span>)<\/span>
                      \n {<\/span>
                      \n std::<\/span>cerr <<<\/span> "pthread_cancel failed"<\/span> <<<\/span> std::<\/span>endl;<\/span>
                      \n }<\/span>
                      \n _status =<\/span> TSTAYUS::<\/span>THREAD_STOPPED;<\/span>
                      \n }<\/span>
                      \n else<\/span>
                      \n {<\/span>
                      \n std::<\/span>cerr <<<\/span> "thread status is : THREAD_STOPPED or THREAD_NEW"<\/span> <<<\/span> std::<\/span>endl;<\/span>
                      \n return<\/span>;<\/span>
                      \n }<\/span>
                      \n }<\/span><\/p>\n

                      \/\/ \u8d44\u6e90\u56de\u6536：\u963b\u585e\u7b49\u5f85\u7ebf\u7a0b\u7ed3\u675f<\/span>
                      \n void<\/span> join<\/span>(<\/span>)<\/span>
                      \n {<\/span>
                      \n if<\/span>(<\/span>_joinable)<\/span>
                      \n {<\/span>
                      \n \/\/ \u53ea\u6709\u5904\u4e8e joinable \u72b6\u6001\u7684\u7ebf\u7a0b\u624d\u9700\u8981\u88ab join，\u5426\u5219\u4f1a\u4ea7\u751f\u8d44\u6e90\u6cc4\u9732<\/span>
                      \n int<\/span> n =<\/span> pthread_join<\/span>(<\/span>_tid,<\/span> nullptr<\/span>)<\/span>;<\/span>
                      \n if<\/span>(<\/span>n !=<\/span> 0<\/span>)<\/span>
                      \n {<\/span>
                      \n std::<\/span>cerr <<<\/span> "pthread_join failed"<\/span> <<<\/span> std::<\/span>endl;<\/span>
                      \n }<\/span>
                      \n printf<\/span>(<\/span>"lwp: %d, name: %s, join success\\\\n"<\/span>,<\/span> _lwid,<\/span> _name.<\/span>c_str<\/span>(<\/span>)<\/span>)<\/span>;<\/span>
                      \n }<\/span>
                      \n else<\/span> {<\/span>
                      \n printf<\/span>(<\/span>"lwp: %d, name: %s, join failed, because thread is detached\\\\n"<\/span>,<\/span> _lwid,<\/span> _name.<\/span>c_str<\/span>(<\/span>)<\/span>)<\/span>;<\/span>
                      \n }<\/span>
                      \n }<\/span><\/p>\n

                      \/\/ \u7ebf\u7a0b\u5206\u79bb：\u5c06\u7ebf\u7a0b\u8bbe\u7f6e\u4e3a\u7531\u7cfb\u7edf\u81ea\u52a8\u56de\u6536<\/span>
                      \n void<\/span> detach<\/span>(<\/span>)<\/span>
                      \n {<\/span>
                      \n if<\/span>(<\/span>_joinable &&<\/span> _status ==<\/span> TSTAYUS::<\/span>THREAD_RUNNING)<\/span>
                      \n {<\/span>
                      \n _joinable =<\/span> false<\/span>;<\/span>
                      \n \/\/ \u5206\u79bb\u540e，\u8be5\u7ebf\u7a0b\u9000\u51fa\u65f6\u4f1a\u81ea\u52a8\u91ca\u653e\u6240\u6709\u8d44\u6e90，\u65e0\u9700 join<\/span>
                      \n int<\/span> n =<\/span> pthread_detach<\/span>(<\/span>_tid)<\/span>;<\/span>
                      \n if<\/span>(<\/span>n !=<\/span> 0<\/span>)<\/span>
                      \n {<\/span>
                      \n std::<\/span>cerr <<<\/span> "pthread_detach failed"<\/span> <<<\/span> std::<\/span>endl;<\/span>
                      \n }<\/span>
                      \n }<\/span>
                      \n }<\/span><\/p>\n

                      \/\/ \u83b7\u53d6\u7ebf\u7a0b\u540d\u79f0\u63a5\u53e3<\/span>
                      \n std::<\/span>string Name<\/span>(<\/span>)<\/span>
                      \n {<\/span>
                      \n return<\/span> _name;<\/span>
                      \n }<\/span><\/p>\n

                      ~<\/span>Thread<\/span>(<\/span>)<\/span>
                      \n {<\/span>
                      \n \/\/ \u6790\u6784\u51fd\u6570\u4e2d\u672a\u505a\u5f3a\u5236 join，\u8fd9\u662f\u4e3a\u4e86\u7ed9\u4f7f\u7528\u8005\u7559\u51fa\u63a7\u5236\u6743<\/span>
                      \n \/\/ \u4f46\u8981\u6ce8\u610f，\u5982\u679c\u5bf9\u8c61\u9500\u6bc1\u65f6\u7ebf\u7a0b\u8fd8\u5728\u8dd1\u4e14\u672a detach，\u53ef\u80fd\u4f1a\u5bfc\u81f4\u7a0b\u5e8f\u5d29\u6e83<\/span>
                      \n }<\/span><\/p>\n

                      private<\/span>:<\/span>
                      \n pthread_t _tid;<\/span> \/\/ \u7ebf\u7a0b\u5e93\u5c42\u9762\u7684 ID (\u7528\u6237\u5c42 ID)<\/span>
                      \n pid_t _pid;<\/span> \/\/ \u6240\u5c5e\u8fdb\u7a0b ID<\/span>
                      \n pid_t _lwid;<\/span> \/\/ \u8f7b\u91cf\u7ea7\u8fdb\u7a0b ID (\u5185\u6838\u5c42\u771f\u6b63\u7684\u7ebf\u7a0b ID)<\/span>
                      \n std::<\/span>string _name;<\/span> \/\/ \u7ebf\u7a0b\u53ef\u8bfb\u6027\u540d\u79f0<\/span>
                      \n func_t _func;<\/span> \/\/ \u7ebf\u7a0b\u6267\u884c\u7684\u4efb\u52a1\u5305\u88c5\u5668<\/span>
                      \n bool<\/span> _joinable;<\/span> \/\/ \u662f\u5426\u5141\u8bb8\u88ab\u7b49\u5f85\u6807\u8bb0<\/span>
                      \n TSTAYUS _status;<\/span> \/\/ \u5f53\u524d\u7ebf\u7a0b\u72b6\u6001\u673a<\/span>
                      \n}<\/span>;<\/span><\/p>\n

                      #<\/span>endif<\/span><\/span><\/p>\n

                      \u6e90\u7801\u6838\u5fc3\u89e3\u8bfb：<\/p>\n

                        \n
                      • \u7ebf\u7a0b\u5165\u53e3\u7684\u6838\u5fc3\u8bbe\u8ba1：\u539f\u751fpthread_create\u8981\u6c42\u5165\u53e3\u51fd\u6570\u5fc5\u987b\u662fvoid* (*)(void*)，\u800c\u7c7b\u7684\u666e\u901a\u6210\u5458\u51fd\u6570\u9690\u542bthis\u6307\u9488，\u53c2\u6570\u4e0d\u5339\u914d\u3002\u56e0\u6b64\u5fc5\u987b\u4f7f\u7528\u9759\u6001\u6210\u5458\u51fd\u6570\u4f5c\u4e3a\u5165\u53e3，\u901a\u8fc7\u4f20\u5165this\u6307\u9488\u627e\u56de\u5bf9\u8c61\u4e0a\u4e0b\u6587\u3002<\/li>\n
                      • \u7ebf\u7a0b\u72b6\u6001\u673a\u7ba1\u7406：\u901a\u8fc7\u679a\u4e3e\u7c7b\u578b\u7ba1\u7406\u7ebf\u7a0b\u7684\u65b0\u5efa\u3001\u8fd0\u884c\u3001\u505c\u6b62\u72b6\u6001，\u907f\u514d\u91cd\u590d\u542f\u52a8\u3001\u91cd\u590d\u505c\u6b62\u7684\u975e\u6cd5\u64cd\u4f5c\u3002<\/li>\n
                      • \u8d44\u6e90\u56de\u6536\u53cc\u65b9\u6848：\u63d0\u4f9bdetach（\u7ebf\u7a0b\u5206\u79bb，\u7cfb\u7edf\u81ea\u52a8\u56de\u6536）\u548cjoin（\u963b\u585e\u7b49\u5f85\u56de\u6536）\u4e24\u79cd\u65b9\u5f0f，\u9002\u914d\u4e0d\u540c\u573a\u666f\u3002<\/li>\n<\/ul>\n

                        2.4 \u7b56\u7565\u6a21\u5f0f\u65e5\u5fd7\u7cfb\u7edf（Logger.hpp）<\/h3>\n

                        \u57fa\u4e8e\u7b56\u7565\u6a21\u5f0f\u5b9e\u73b0\u7684\u591a\u7ebf\u7a0b\u5b89\u5168\u65e5\u5fd7\u7cfb\u7edf，\u652f\u6301\u63a7\u5236\u53f0 \/ \u6587\u4ef6\u53cc\u8f93\u51fa\u7b56\u7565，\u901a\u8fc7 RAII \u673a\u5236\u5b9e\u73b0\u65e5\u5fd7\u6d88\u606f\u7684\u81ea\u52a8\u5237\u65b0，\u662f\u670d\u52a1\u5668\u8c03\u8bd5\u4e0e\u95ee\u9898\u5b9a\u4f4d\u7684\u6838\u5fc3\u5de5\u5177\u3002<\/p>\n

                        \u6838\u5fc3\u8bbe\u8ba1\u4eae\u70b9：<\/p>\n

                          \n
                        • \u7b56\u7565\u6a21\u5f0f\u89e3\u8026：\u5c06\u65e5\u5fd7\u7684\u751f\u6210\u4e0e\u8f93\u51fa\u76ee\u7684\u5730\u5206\u79bb，\u65b0\u589e\u8f93\u51fa\u65b9\u5f0f（\u5982\u7f51\u7edc\u3001\u6570\u636e\u5e93）\u53ea\u9700\u65b0\u589e\u7b56\u7565\u5b50\u7c7b，\u65e0\u9700\u4fee\u6539\u539f\u6709\u4ee3\u7801<\/li>\n
                        • RAII \u81ea\u52a8\u5237\u65b0：\u65e5\u5fd7\u4e34\u65f6\u5bf9\u8c61\u751f\u547d\u5468\u671f\u7ed3\u675f\u65f6，\u81ea\u52a8\u8c03\u7528\u7b56\u7565\u63a5\u53e3\u5237\u65b0\u65e5\u5fd7，\u4fdd\u8bc1\u65e5\u5fd7\u5fc5\u7136\u8f93\u51fa<\/li>\n
                        • \u591a\u7ebf\u7a0b\u5b89\u5168：\u6240\u6709\u8f93\u51fa\u64cd\u4f5c\u90fd\u901a\u8fc7\u4e92\u65a5\u9501\u4fdd\u62a4，\u907f\u514d\u591a\u7ebf\u7a0b\u6253\u65e5\u5fd7\u51fa\u73b0\u5b57\u7b26\u4ea4\u7ec7<\/li>\n
                        • \u4e30\u5bcc\u7684\u65e5\u5fd7\u4e0a\u4e0b\u6587：\u81ea\u52a8\u643a\u5e26\u65f6\u95f4\u6233\u3001\u65e5\u5fd7\u7b49\u7ea7\u3001PID\u3001\u6587\u4ef6\u540d\u3001\u884c\u53f7，\u65b9\u4fbf\u95ee\u9898\u5b9a\u4f4d<\/li>\n<\/ul>\n

                          2.5 \u7f51\u7edc\u5730\u5740\u5c01\u88c5（InetAddr.hpp）<\/h3>\n

                          \u5bf9sockaddr_in\u7ed3\u6784\u4f53\u4e0e\u5b57\u8282\u5e8f\u8f6c\u6362\u8fdb\u884c\u5c01\u88c5，\u5c4f\u853d\u4e86\u7f51\u7edc\u5b57\u8282\u5e8f\u4e0e\u4e3b\u673a\u5b57\u8282\u5e8f\u7684\u8f6c\u6362\u7ec6\u8282，\u5927\u5e45\u7b80\u5316 TCP \u670d\u52a1\u5668\u4e2dbind\u3001connect\u3001accept\u7684\u5730\u5740\u64cd\u4f5c\u3002<\/p>\n

                          \u6838\u5fc3\u80fd\u529b：<\/p>\n

                            \n
                          • \u81ea\u52a8\u5b8c\u6210\u4e3b\u673a\u5b57\u8282\u5e8f\u4e0e\u7f51\u7edc\u5b57\u8282\u5e8f\u7684\u8f6c\u6362（htons\/ntohs）<\/li>\n
                          • \u81ea\u52a8\u5b8c\u6210\u5b57\u7b26\u4e32 IP \u4e0e 32 \u4f4d\u6574\u578b IP \u7684\u8f6c\u6362（inet_addr\/inet_ntoa）<\/li>\n
                          • \u63d0\u4f9b\u7edf\u4e00\u7684\u5730\u5740\u6307\u9488\u4e0e\u957f\u5ea6\u83b7\u53d6\u63a5\u53e3，\u9002\u914d\u539f\u751f socket \u7cfb\u7edf\u8c03\u7528<\/li>\n
                          • \u91cd\u8f7d\u5224\u7b49\u8fd0\u7b97\u7b26，\u652f\u6301\u5ba2\u6237\u7aef\u5730\u5740\u7684\u552f\u4e00\u6807\u8bc6\u4e0e\u67e5\u627e<\/li>\n<\/ul>\n
                            \n

                            \u4e09. V3-1 \u591a\u8fdb\u7a0b\u7248\u672c：\u8fdc\u7a0b\u547d\u4ee4\u6267\u884c\u670d\u52a1\u5668\u5b9e\u6218<\/h2>\n

                            3.1 \u9700\u6c42\u80cc\u666f\u4e0e\u6574\u4f53\u8bbe\u8ba1<\/h3>\n

                            \u6211\u4eec\u8981\u5b9e\u73b0\u4e00\u4e2a\u7c7b SSH \u7684\u8fdc\u7a0b\u547d\u4ee4\u6267\u884c\u670d\u52a1\u5668，\u6838\u5fc3\u80fd\u529b\u5982\u4e0b：<\/p>\n

                              \n
                            • \u5ba2\u6237\u7aef\u4e0e\u670d\u52a1\u7aef\u5efa\u7acb TCP \u8fde\u63a5\u540e，\u53ef\u53d1\u9001 Linux \u547d\u4ee4\u5b57\u7b26\u4e32<\/li>\n
                            • \u670d\u52a1\u7aef\u5bf9\u547d\u4ee4\u8fdb\u884c\u5b89\u5168\u6821\u9a8c，\u4ec5\u5141\u8bb8\u6267\u884c\u767d\u540d\u5355\u5185\u7684\u547d\u4ee4<\/li>\n
                            • \u670d\u52a1\u7aef\u6267\u884c\u547d\u4ee4\u540e，\u5c06\u6267\u884c\u7ed3\u679c\u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef<\/li>\n
                            • \u652f\u6301\u591a\u5ba2\u6237\u7aef\u5e76\u53d1\u8fde\u63a5，\u6bcf\u4e2a\u8fde\u63a5\u7531\u72ec\u7acb\u7ebf\u7a0b\u5904\u7406，\u4e92\u4e0d\u5e72\u6270<\/li>\n<\/ul>\n

                              \u6574\u4f53\u67b6\u6784\u8bbe\u8ba1：\u91c7\u7528\u5206\u5c42\u8bbe\u8ba1\u601d\u60f3，\u5c06\u7f51\u7edc\u901a\u4fe1\u4e0e\u4e1a\u52a1\u5904\u7406\u5b8c\u5168\u89e3\u8026<\/p>\n

                                \n
                              • \u7f51\u7edc\u901a\u4fe1\u5c42：\u591a\u7ebf\u7a0b TCP \u670d\u52a1\u5668，\u8d1f\u8d23 socket \u521b\u5efa\u3001\u76d1\u542c\u3001\u8fde\u63a5\u7ba1\u7406\u3001\u6570\u636e\u6536\u53d1<\/li>\n
                              • \u4e1a\u52a1\u5904\u7406\u5c42：\u547d\u4ee4\u6267\u884c\u6a21\u5757，\u8d1f\u8d23\u547d\u4ee4\u5b89\u5168\u6821\u9a8c\u3001\u547d\u4ee4\u6267\u884c\u3001\u7ed3\u679c\u5c01\u88c5<\/li>\n
                              • \u89e3\u8026\u65b9\u6848：\u901a\u8fc7std::function\u56de\u8c03\u51fd\u6570，\u5c06\u4e1a\u52a1\u5904\u7406\u6ce8\u5165\u5230\u7f51\u7edc\u5c42，\u7f51\u7edc\u5c42\u65e0\u9700\u5173\u5fc3\u4e1a\u52a1\u7ec6\u8282<\/li>\n<\/ul>\n

                                \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

                                3.2 \u4e1a\u52a1\u5c42：\u547d\u4ee4\u6267\u884c\u6a21\u5757\u6df1\u5ea6\u89e3\u6790（ExcuteCommand.hpp）<\/h3>\n

                                \u547d\u4ee4\u6267\u884c\u6a21\u5757\u662f\u4e1a\u52a1\u7684\u6838\u5fc3，\u8d1f\u8d23\u547d\u4ee4\u7684\u5b89\u5168\u6821\u9a8c\u4e0e\u6267\u884c，\u6838\u5fc3\u89e3\u51b3\u4e24\u4e2a\u95ee\u9898：\u5982\u4f55\u5728 C++ \u4e2d\u6267\u884c Linux \u547d\u4ee4\u5e76\u83b7\u53d6\u8f93\u51fa\u3001\u5982\u4f55\u907f\u514d\u6076\u610f\u547d\u4ee4\u6267\u884c\u7684\u5b89\u5168\u98ce\u9669\u3002<\/p>\n

                                #<\/span>ifndef<\/span> __EXCUTECOMMAND__HPP<\/span><\/span>
                                \n#<\/span>define<\/span> __EXCUTECOMMAND__HPP<\/span><\/span><\/p>\n

                                #<\/span>include<\/span> <cstddef><\/span><\/span>
                                \n#<\/span>include<\/span> <cstdio><\/span> \/\/ popen, pclose, fgets \u7b49\u6807\u51c6 C \u5e93\u51fd\u6570\u4f9d\u8d56\u4e8e\u6b64<\/span><\/span>
                                \n#<\/span>include<\/span> <iostream><\/span><\/span>
                                \n#<\/span>include<\/span> <vector><\/span><\/span>
                                \n#<\/span>include<\/span> "Logger.hpp"<\/span><\/span><\/p>\n

                                using<\/span> namespace<\/span> std;<\/span>
                                \nusing<\/span> namespace<\/span> LogModule;<\/span><\/p>\n

                                \/\/ \u547d\u4ee4\u6267\u884c\u5668\u7c7b：\u4e13\u95e8\u8d1f\u8d23\u89e3\u6790\u5e76\u6267\u884c\u6765\u81ea\u7f51\u7edc\u7684\u7cfb\u7edf\u547d\u4ee4，\u5e76\u5c06\u8f93\u51fa\u7ed3\u679c\u4f5c\u4e3a\u5b57\u7b26\u4e32\u8fd4\u56de<\/span>
                                \n\/\/ \u8fd9\u662f\u4e00\u4e2a\u5178\u578b\u7684\u5c06\u201c\u4e1a\u52a1\u903b\u8f91\u201d\u4e0e\u201c\u7f51\u7edc\u901a\u4fe1\u201d\u89e3\u8026\u7684\u8bbe\u8ba1<\/span>
                                \nclass<\/span> ExcuteCommand<\/span>
                                \n{<\/span>
                                \nprivate<\/span>:<\/span>
                                \n \/\/ \u5b89\u5168\u6821\u9a8c\u6838\u5fc3：\u57fa\u4e8e\u201c\u767d\u540d\u5355\u201d\u673a\u5236\u8fdb\u884c\u62e6\u622a<\/span>
                                \n \/\/ \u4e3a\u4ec0\u4e48\u4e0d\u7528\u9ed1\u540d\u5355？\u56e0\u4e3a\u9ed1\u540d\u5355\u9632\u4e0d\u4f4f\u547d\u4ee4\u6ce8\u5165（\u5982 "ls && rm -rf \/"）<\/span>
                                \n bool<\/span> IsSafe<\/span>(<\/span>const<\/span> std::<\/span>string &<\/span>cmdstr)<\/span>
                                \n {<\/span>
                                \n for<\/span>(<\/span>auto<\/span>&<\/span> str :<\/span> _white_list)<\/span>
                                \n {<\/span>
                                \n \/\/ \u6ce8\u610f：\u8fd9\u91cc\u4f7f\u7528\u7684\u662f\u7cbe\u786e\u5339\u914d (==)，\u610f\u5473\u7740\u5ba2\u6237\u7aef\u53d1\u6765\u7684\u547d\u4ee4\u5fc5\u987b\u8fde\u7a7a\u683c\u90fd\u5206\u6beb\u4e0d\u5dee<\/span>
                                \n \/\/ \u8fd9\u79cd\u8bbe\u8ba1\u6781\u5176\u4e25\u683c，\u4f46\u4e5f\u6700\u5b89\u5168，\u675c\u7edd\u4e86\u4efb\u4f55\u5f62\u5f0f\u7684\u53c2\u6570\u6ce8\u5165\u653b\u51fb<\/span>
                                \n if<\/span>(<\/span>cmdstr ==<\/span> str)<\/span> return<\/span> true<\/span>;<\/span>
                                \n }<\/span><\/p>\n

                                return<\/span> false<\/span>;<\/span> \/\/ \u5982\u679c\u904d\u5386\u5b8c\u767d\u540d\u5355\u90fd\u6ca1\u627e\u5230，\u9ed8\u8ba4\u89c6\u4f5c\u4e0d\u5b89\u5168\u547d\u4ee4，\u76f4\u63a5\u62d2\u7edd<\/span>
                                \n }<\/span><\/p>\n

                                public<\/span>:<\/span>
                                \n ExcuteCommand<\/span>(<\/span>)<\/span>
                                \n {<\/span>
                                \n \/\/ \u6784\u9020\u65f6\u521d\u59cb\u5316\u767d\u540d\u5355\u3002\u53ea\u6709\u8fd9 5 \u4e2a\u7eaf\u8bfb\u53d6\u3001\u65e0\u7834\u574f\u6027\u7684\u547d\u4ee4\u662f\u88ab\u5141\u8bb8\u6267\u884c\u7684<\/span>
                                \n _white_list.<\/span>push_back<\/span>(<\/span>"pwd"<\/span>)<\/span>;<\/span>
                                \n _white_list.<\/span>push_back<\/span>(<\/span>"who"<\/span>)<\/span>;<\/span>
                                \n _white_list.<\/span>push_back<\/span>(<\/span>"whoami"<\/span>)<\/span>;<\/span>
                                \n _white_list.<\/span>push_back<\/span>(<\/span>"ls -a -l"<\/span>)<\/span>;<\/span>
                                \n _white_list.<\/span>push_back<\/span>(<\/span>"env"<\/span>)<\/span>;<\/span>
                                \n }<\/span><\/p>\n

                                \/\/ \u6267\u884c\u5916\u90e8\u547d\u4ee4\u7684\u4e3b\u51fd\u6570<\/span>
                                \n std::<\/span>string Excute<\/span>(<\/span>const<\/span> std::<\/span>string cmdstr)<\/span>
                                \n {<\/span>
                                \n \/\/ 1. \u6267\u884c\u524d\u7f6e\u5b89\u5168\u62e6\u622a<\/span>
                                \n if<\/span>(<\/span>!<\/span>IsSafe<\/span>(<\/span>cmdstr)<\/span>)<\/span> return<\/span> "UnSafe"<\/span>;<\/span><\/p>\n

                                \/\/ 2. \u6838\u5fc3\u7cfb\u7edf\u8c03\u7528：popen<\/span>
                                \n \/\/ popen \u5728\u5e95\u5c42\u4f1a\u81ea\u52a8\u4e3a\u4f60\u5b8c\u6210\u56db\u5927\u6b65\u9aa4：<\/span>
                                \n \/\/ (1) \u521b\u5efa\u65e0\u540d\u7ba1\u9053 (pipe)<\/span>
                                \n \/\/ (2) fork() \u521b\u5efa\u5b50\u8fdb\u7a0b<\/span>
                                \n \/\/ (3) \u5728\u5b50\u8fdb\u7a0b\u4e2d\u8c03\u7528 exec \u51fd\u6570\u7c07\u6267\u884c shell \u547d\u4ee4 (sh -c cmdstr)<\/span>
                                \n \/\/ (4) "r" \u8868\u793a\u7236\u8fdb\u7a0b\u8981\u8bfb\u53d6\u5b50\u8fdb\u7a0b\u7684\u6807\u51c6\u8f93\u51fa\u6d41<\/span>
                                \n FILE*<\/span> fp =<\/span> popen<\/span>(<\/span>cmdstr.<\/span>c_str<\/span>(<\/span>)<\/span>,<\/span> "r"<\/span>)<\/span>;<\/span>
                                \n if<\/span>(<\/span>fp ==<\/span> nullptr<\/span>)<\/span>
                                \n {<\/span>
                                \n LOG<\/span>(<\/span>LogLevel::<\/span>ERROR)<\/span> <<<\/span> "exec error: "<\/span> <<<\/span> cmdstr;<\/span>
                                \n return<\/span> "error"<\/span>;<\/span> \/\/ \u521b\u5efa\u8fdb\u7a0b\u6216\u7ba1\u9053\u5931\u8d25<\/span>
                                \n }<\/span><\/p>\n

                                std::<\/span>string result;<\/span>
                                \n char<\/span> buffer[<\/span>512<\/span>]<\/span>;<\/span> \/\/ \u7528\u4e8e\u6682\u5b58\u4ece\u7ba1\u9053\u4e2d\u8bfb\u53d6\u7684\u6570\u636e\u5757<\/span><\/p>\n

                                \/\/ 3. \u5faa\u73af\u8bfb\u53d6\u6267\u884c\u7ed3\u679c<\/span>
                                \n \/\/ fgets \u4f1a\u4ece fp (\u7ba1\u9053\u8bfb\u7aef) \u4e2d\u8bfb\u53d6\u6570\u636e，\u76f4\u5230\u8bfb\u5230 EOF \u6216\u53d1\u751f\u9519\u8bef<\/span>
                                \n \/\/ \u7531\u4e8e\u547d\u4ee4\u8f93\u51fa\u53ef\u80fd\u5f88\u957f（\u6bd4\u5982 env），\u8fd9\u91cc\u5fc5\u987b\u7528 while \u5faa\u73af\u5206\u6279\u8bfb\u53d6<\/span>
                                \n while<\/span>(<\/span>fgets<\/span>(<\/span>buffer,<\/span> sizeof<\/span>(<\/span>buffer)<\/span>,<\/span> fp)<\/span> !=<\/span> nullptr<\/span>)<\/span>
                                \n {<\/span>
                                \n result +=<\/span> buffer;<\/span> \/\/ \u5c06\u5f53\u524d\u8bfb\u5230\u7684\u6570\u636e\u5757\u8ffd\u52a0\u5230\u6700\u7ec8\u7ed3\u679c\u5b57\u7b26\u4e32\u4e2d<\/span>
                                \n buffer[<\/span>0<\/span>]<\/span> =<\/span> 0<\/span>;<\/span> \/\/ \u6e05\u7a7a\u4e00\u4e0b (\u539f\u6ce8\u91ca\u4fdd\u7559\u3002\u5e95\u5c42\u903b\u8f91：\u5c06\u9996\u5b57\u7b26\u7f6e\u4e3a \\\\0，\u4f5c\u4e3a\u4e00\u79cd\u9632\u5b88\u578b\u7f16\u7a0b\u4e60\u60ef)<\/span>
                                \n }<\/span><\/p>\n

                                \/\/ 4. \u6536\u5c3e\u5de5\u4f5c：\u6781\u5176\u91cd\u8981<\/span>
                                \n \/\/ pclose \u4e0d\u4ec5\u4ec5\u662f\u5173\u95ed\u6587\u4ef6\u6307\u9488，\u5b83\u5728\u5e95\u5c42\u8fd8\u4f1a\u8c03\u7528 waitpid() \u53bb\u56de\u6536\u521a\u521a popen \u521b\u5efa\u7684\u5b50\u8fdb\u7a0b<\/span>
                                \n \/\/ \u5982\u679c\u4e0d\u8c03 pclose，\u4f1a\u5bfc\u81f4\u4ea7\u751f\u5927\u91cf\u7684\u50f5\u5c38\u8fdb\u7a0b，\u6700\u7ec8\u8017\u5c3d\u7cfb\u7edf PID \u8d44\u6e90<\/span>
                                \n pclose<\/span>(<\/span>fp)<\/span>;<\/span><\/p>\n

                                return<\/span> result;<\/span> \/\/ \u5c06\u5b8c\u6574\u7684\u6267\u884c\u7ed3\u679c\u8fd4\u56de\u7ed9\u8c03\u7528\u8005（\u7f51\u7edc\u5c42）<\/span>
                                \n }<\/span><\/p>\n

                                ~<\/span>ExcuteCommand<\/span>(<\/span>)<\/span>
                                \n {<\/span>}<\/span><\/p>\n

                                private<\/span>:<\/span>
                                \n std::<\/span>vector<<\/span>std::<\/span>string><\/span> _white_list;<\/span> \/\/ \u767d\u540d\u5355\u5217\u8868，\u5b58\u50a8 100% \u4fe1\u4efb\u7684\u547d\u4ee4<\/span>
                                \n}<\/span>;<\/span>
                                \n#<\/span>endif<\/span><\/span><\/p>\n

                                \u6e90\u7801\u6838\u5fc3\u89e3\u8bfb：<\/p>\n

                                  \n
                                • \u5b89\u5168\u8bbe\u8ba1：\u767d\u540d\u5355\u4f18\u5148\u539f\u5219\n
                                    \n
                                  • \u4e0d\u91c7\u7528\u9ed1\u540d\u5355\u673a\u5236（\u65e0\u6cd5\u8986\u76d6\u6240\u6709\u6076\u610f\u547d\u4ee4，\u5982ls && rm -rf \/\u547d\u4ee4\u6ce8\u5165），\u800c\u662f\u91c7\u7528\u767d\u540d\u5355\u673a\u5236，\u4ec5\u5141\u8bb8\u6267\u884c\u660e\u786e\u6307\u5b9a\u7684\u5b89\u5168\u547d\u4ee4，\u4ece\u6839\u6e90\u907f\u514d\u547d\u4ee4\u6ce8\u5165\u98ce\u9669\u3002<\/li>\n
                                  • \u975e\u6cd5\u547d\u4ee4\u76f4\u63a5\u8fd4\u56deUnSafe，\u4e0d\u6267\u884c\u4efb\u4f55\u7cfb\u7edf\u8c03\u7528，\u6700\u5927\u7a0b\u5ea6\u4fdd\u8bc1\u670d\u52a1\u5668\u5b89\u5168\u3002<\/li>\n<\/ul>\n<\/li>\n
                                  • popen \u51fd\u6570\u7684\u6838\u5fc3\u4ef7\u503c\n
                                      \n
                                    • popen\u5e95\u5c42\u4f1a\u81ea\u52a8\u521b\u5efa\u7ba1\u9053\u3001fork \u5b50\u8fdb\u7a0b\u3001\u8c03\u7528 exec \u6267\u884c shell \u547d\u4ee4，\u5c06\u547d\u4ee4\u7684\u6807\u51c6\u8f93\u51fa\u91cd\u5b9a\u5411\u5230\u7ba1\u9053\u4e2d，\u4e00\u884c\u4ee3\u7801\u5b8c\u6210 shell \u8c03\u7528\u4e0e\u7ed3\u679c\u8bfb\u53d6，\u907f\u514d\u4e86\u624b\u52a8\u8c03\u7528 pipe+fork+exec \u7684\u7e41\u7410\u6d41\u7a0b\u3002<\/li>\n
                                    • \u7b2c\u4e8c\u4e2a\u53c2\u6570"r"\u8868\u793a\u8bfb\u53d6\u547d\u4ee4\u8f93\u51fa，\u82e5\u4e3a"w"\u5219\u8868\u793a\u5411\u547d\u4ee4\u6807\u51c6\u8f93\u5165\u5199\u5165\u6570\u636e\u3002<\/li>\n
                                    • \u5fc5\u987b\u8c03\u7528pclose\u5173\u95ed\u7ba1\u9053，\u5426\u5219\u4f1a\u4ea7\u751f\u6587\u4ef6\u63cf\u8ff0\u7b26\u6cc4\u6f0f\u4e0e\u50f5\u5c38\u8fdb\u7a0b\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

                                      \u7ed3\u679c\u8bfb\u53d6\u903b\u8f91：\u901a\u8fc7fgets\u5faa\u73af\u8bfb\u53d6\u7ba1\u9053\u4e2d\u7684\u8f93\u51fa，\u62fc\u63a5\u6210\u5b8c\u6574\u7684\u7ed3\u679c\u5b57\u7b26\u4e32\u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef，\u7f13\u51b2\u533a\u9010\u884c\u6e05\u7a7a，\u907f\u514d\u6570\u636e\u6b8b\u7559\u3002<\/p>\n

                                      3.3 \u7f51\u7edc\u5c42：\u591a\u7ebf\u7a0b TCP \u670d\u52a1\u5668\u6df1\u5ea6\u89e3\u6790<\/h3>\n

                                      \u591a\u7ebf\u7a0b TCP \u670d\u52a1\u5668\u8d1f\u8d23\u7f51\u7edc\u901a\u4fe1，\u901a\u8fc7\u56de\u8c03\u51fd\u6570\u6ce8\u5165\u4e1a\u52a1\u5904\u7406\u903b\u8f91，\u5b8c\u5168\u4e0d\u5173\u5fc3\u5177\u4f53\u4e1a\u52a1，\u5177\u5907\u6781\u9ad8\u7684\u590d\u7528\u6027\u3002<\/p>\n

                                      3.3.1 \u6838\u5fc3\u7c7b\u578b\u4e0e\u6210\u5458\u5b9a\u4e49<\/h4>\n

                                      \/\/ \u4e1a\u52a1\u56de\u8c03\u51fd\u6570\u7c7b\u578b：\u8f93\u5165\u547d\u4ee4\u5b57\u7b26\u4e32，\u8fd4\u56de\u6267\u884c\u7ed3\u679c<\/span>
                                      \nusing<\/span> callback_t =<\/span> std::<\/span>function<<\/span>std::<\/span>string<\/span>(<\/span>std::<\/span>string)<\/span>><\/span>;<\/span>
                                      \nstatic<\/span> const<\/span> uint16_t<\/span> gdefaultport =<\/span> 8080<\/span>;<\/span>
                                      \nstatic<\/span> const<\/span> int<\/span> gbacklog =<\/span> 32<\/span>;<\/span><\/p>\n

                                      class<\/span> TcpServer<\/span>
                                      \n{<\/span>
                                      \nprivate<\/span>:<\/span>
                                      \n \/\/ \u6838\u5fc3\u4e1a\u52a1\u5904\u7406\u51fd\u6570：\u6bcf\u4e2a\u8fde\u63a5\u7684IO\u5faa\u73af<\/span>
                                      \n void<\/span> Service<\/span>(<\/span>int<\/span> sockfd,<\/span> InetAddr client)<\/span>;<\/span>
                                      \npublic<\/span>:<\/span>
                                      \n TcpServer<\/span> (<\/span>uint16_t<\/span> port =<\/span> gdefaultport)<\/span>:<\/span> _port<\/span>(<\/span>port)<\/span>,<\/span> _listensockfd<\/span>(<\/span>–<\/span>1<\/span>)<\/span> {<\/span>}<\/span>
                                      \n \/\/ \u670d\u52a1\u5668\u521d\u59cb\u5316：\u6ce8\u5165\u4e1a\u52a1\u56de\u8c03\u3001socket\u521b\u5efa\u3001bind\u3001listen<\/span>
                                      \n void<\/span> Init<\/span>(<\/span>callback_t cb)<\/span>;<\/span>
                                      \n \/\/ \u670d\u52a1\u5668\u542f\u52a8：\u4e8b\u4ef6\u5faa\u73af，accept\u65b0\u8fde\u63a5<\/span>
                                      \n void<\/span> Start<\/span>(<\/span>)<\/span>;<\/span>
                                      \n ~<\/span>TcpServer<\/span>(<\/span>)<\/span>{<\/span>}<\/span>
                                      \nprivate<\/span>:<\/span>
                                      \n uint16_t<\/span> _port;<\/span> \/\/ \u670d\u52a1\u5668\u76d1\u542c\u7aef\u53e3<\/span>
                                      \n int<\/span> _listensockfd;<\/span> \/\/ \u76d1\u542c\u5957\u63a5\u5b57<\/span>
                                      \n callback_t _cb;<\/span> \/\/ \u4e1a\u52a1\u5904\u7406\u56de\u8c03\u51fd\u6570<\/span>
                                      \n}<\/span>;<\/span><\/p>\n

                                      \u6838\u5fc3\u8bbe\u8ba1\u89e3\u8bfb：<\/p>\n

                                        \n
                                      • \u56de\u8c03\u51fd\u6570callback_t\u662f\u7f51\u7edc\u5c42\u4e0e\u4e1a\u52a1\u5c42\u89e3\u8026\u7684\u6838\u5fc3，\u670d\u52a1\u5668\u53ea\u8d1f\u8d23\u6536\u53d1\u6570\u636e，\u5177\u4f53\u7684\u6570\u636e\u5904\u7406\u5b8c\u5168\u7531\u6ce8\u5165\u7684\u56de\u8c03\u51fd\u6570\u5b9e\u73b0\u3002<\/li>\n
                                      • _listensockfd\u662f\u76d1\u542c\u5957\u63a5\u5b57，\u4ec5\u7528\u4e8e\u63a5\u6536\u5ba2\u6237\u7aef\u7684\u8fde\u63a5\u8bf7\u6c42，\u771f\u6b63\u4e0e\u5ba2\u6237\u7aef\u901a\u4fe1\u7684\u662faccept\u8fd4\u56de\u7684\u65b0\u5957\u63a5\u5b57\u3002<\/li>\n<\/ul>\n

                                        3.3.2 \u670d\u52a1\u7aef\u5b8c\u6574\u4ee3\u7801\u89e3\u6790（TcpServer.hpp）<\/h4>\n

                                        #<\/span>ifndef<\/span> __TCP__SERVER__HPP<\/span><\/span>
                                        \n#<\/span>define<\/span> __TCP__SERVER__HPP<\/span><\/span><\/p>\n

                                        #<\/span>include<\/span> <csignal><\/span><\/span>
                                        \n#<\/span>include<\/span> <cstdint><\/span><\/span>
                                        \n#<\/span>include<\/span> <functional><\/span><\/span>
                                        \n#<\/span>include<\/span> <pthread.h><\/span><\/span>
                                        \n#<\/span>include<\/span> <string><\/span><\/span>
                                        \n#<\/span>include<\/span> <string.h><\/span><\/span>
                                        \n#<\/span>include<\/span> <unistd.h><\/span><\/span>
                                        \n#<\/span>include<\/span> <sys\/wait.h><\/span><\/span><\/p>\n

                                        #<\/span>include<\/span> <sys\/socket.h><\/span><\/span>
                                        \n#<\/span>include<\/span> <netinet\/in.h><\/span><\/span>
                                        \n#<\/span>include<\/span> <arpa\/inet.h><\/span><\/span>
                                        \n#<\/span>include<\/span> "InetAddr.hpp"<\/span><\/span>
                                        \n#<\/span>include<\/span> "Logger.hpp"<\/span><\/span>
                                        \nusing<\/span> namespace<\/span> LogModule;<\/span><\/p>\n

                                        \/\/ \u5b9a\u4e49\u56de\u8c03\u51fd\u6570\u7c7b\u578b：\u63a5\u6536\u4e00\u4e2a string（\u5ba2\u6237\u7aef\u53d1\u6765\u7684\u8bf7\u6c42），\u8fd4\u56de\u4e00\u4e2a string（\u5904\u7406\u540e\u7684\u7ed3\u679c）\u3002<\/span>
                                        \n\/\/ \u8fd9\u662f\u7f51\u7edc\u5c42（TcpServer）\u548c\u4e1a\u52a1\u5c42（\u5982 ExecuteCommand）\u5f7b\u5e95\u89e3\u8026\u7684\u7075\u9b42\u6240\u5728\u3002<\/span>
                                        \nusing<\/span> callback_t =<\/span> std::<\/span>function<<\/span>std::<\/span>string<\/span>(<\/span>std::<\/span>string)<\/span>><\/span>;<\/span><\/p>\n

                                        static<\/span> const<\/span> uint16_t<\/span> gdefaultport =<\/span> 8080<\/span>;<\/span>
                                        \nstatic<\/span> const<\/span> int<\/span> gbacklog =<\/span> 32<\/span>;<\/span><\/p>\n

                                        class<\/span> TcpServer<\/span>
                                        \n{<\/span>
                                        \nprivate<\/span>:<\/span>
                                        \n \/\/ sockfd: \u65e2\u53ef\u4ee5\u652f\u6301\u8bfb，\u53c8\u53ef\u4ee5\u652f\u6301\u5199, TCP socket\u4e5f\u662f\u5168\u53cc\u5de5\u7684.<\/span>
                                        \n \/\/ \u4e13\u95e8\u8d1f\u8d23\u4e0e\u67d0\u4e00\u4e2a\u7279\u5b9a\u5ba2\u6237\u7aef\u8fdb\u884c IO \u901a\u4fe1\u7684\u201c\u670d\u52a1\u5458\u201d\u51fd\u6570<\/span>
                                        \n void<\/span> Service<\/span>(<\/span>int<\/span> sockfd,<\/span> InetAddr client)<\/span>
                                        \n {<\/span>
                                        \n \/\/ \u957f\u8fde\u63a5\u670d\u52a1<\/span>
                                        \n while<\/span> (<\/span>true<\/span>)<\/span>
                                        \n {<\/span>
                                        \n char<\/span> inbuffer[<\/span>1024<\/span>]<\/span>;<\/span><\/p>\n

                                        \/\/ 1. \u8bfb\u53d6<\/span>
                                        \n \/\/ \u6ce8\u610f：sizeof(inbuffer) – 1 \u662f\u4e3a\u4e86\u9884\u7559\u4e00\u4e2a\u5b57\u8282，\u7ed9\u540e\u9762\u7684 \\\\0 \u5360\u4f4d，\u9632\u6b62\u5b57\u7b26\u4e32\u8d8a\u754c<\/span>
                                        \n int<\/span> n =<\/span> read<\/span>(<\/span>sockfd,<\/span> inbuffer,<\/span> sizeof<\/span>(<\/span>inbuffer)<\/span> –<\/span> 1<\/span>)<\/span>;<\/span>
                                        \n if<\/span>(<\/span>n ><\/span> 0<\/span>)<\/span>
                                        \n {<\/span>
                                        \n inbuffer[<\/span>n]<\/span> =<\/span> 0<\/span>;<\/span> \/\/ \u624b\u52a8\u5c06\u5176\u8f6c\u6362\u4e3a\u5b89\u5168\u7684 C \u98ce\u683c\u5b57\u7b26\u4e32<\/span>
                                        \n LOG<\/span>(<\/span>LogLevel::<\/span>INFO)<\/span> <<<\/span> client.<\/span>StringAddress<\/span>(<\/span>)<\/span> <<<\/span> " say# "<\/span> <<<\/span> inbuffer;<\/span>
                                        \n }<\/span>
                                        \n else<\/span> if<\/span>(<\/span>n ==<\/span> 0<\/span>)<\/span>
                                        \n {<\/span>
                                        \n \/\/ read \u8fd4\u56de 0 \u662f\u4e00\u4e2a\u975e\u5e38\u5173\u952e\u7684\u4fe1\u53f7：\u4ee3\u8868\u5ba2\u6237\u7aef\u4e3b\u52a8\u5173\u95ed\u4e86\u8fde\u63a5 (EOF)<\/span>
                                        \n LOG<\/span>(<\/span>LogLevel::<\/span>INFO)<\/span> <<<\/span> client.<\/span>StringAddress<\/span>(<\/span>)<\/span> <<<\/span> " close sockfd: "<\/span> <<<\/span> sockfd <<<\/span> ", me too!"<\/span>;<\/span>
                                        \n break<\/span>;<\/span>
                                        \n }<\/span>
                                        \n else<\/span>
                                        \n {<\/span>
                                        \n \/\/ \u53d1\u751f\u7f51\u7edc\u9519\u8bef\u6216\u88ab\u4fe1\u53f7\u4e2d\u65ad<\/span>
                                        \n LOG<\/span>(<\/span>LogLevel::<\/span>ERROR)<\/span> <<<\/span> "read socket error"<\/span>;<\/span>
                                        \n break<\/span>;<\/span>
                                        \n }<\/span><\/p>\n

                                        \/\/ \u52a0\u5de5\u5904\u7406\u6570\u636e<\/span>
                                        \n \/\/ \u67b6\u6784\u4eae\u70b9：\u5c06\u8bfb\u5230\u7684\u6570\u636e\u76f4\u63a5\u6254\u7ed9\u7ed1\u5b9a\u7684\u56de\u8c03\u51fd\u6570，\u7f51\u7edc\u5c42\u6839\u672c\u4e0d\u5173\u5fc3\u91cc\u9762\u662f\u5728\u7b97\u52a0\u6cd5\u8fd8\u662f\u5728\u6267\u884c\u7cfb\u7edf\u547d\u4ee4<\/span>
                                        \n std::<\/span>string result =<\/span> _cb<\/span>(<\/span>inbuffer)<\/span>;<\/span><\/p>\n

                                        \/\/ 2. \u5199\u56de\u6570\u636e<\/span>
                                        \n int<\/span> m =<\/span> write<\/span>(<\/span>sockfd,<\/span> result.<\/span>c_str<\/span>(<\/span>)<\/span>,<\/span> result.<\/span>size<\/span>(<\/span>)<\/span>)<\/span>;<\/span>
                                        \n if<\/span>(<\/span>m <<\/span> 0<\/span>)<\/span>
                                        \n {<\/span>
                                        \n LOG<\/span>(<\/span>LogLevel::<\/span>ERROR)<\/span> <<<\/span> "write socket error"<\/span>;<\/span>
                                        \n break<\/span>;<\/span>
                                        \n }<\/span>
                                        \n }<\/span><\/p>\n

                                        \/\/ \u6781\u5176\u91cd\u8981：\u8df3\u51fa\u5faa\u73af\u8bf4\u660e\u670d\u52a1\u7ed3\u675f，\u5fc5\u987b\u5173\u95ed IO \u5957\u63a5\u5b57，\u5426\u5219\u4f1a\u9020\u6210\u7cfb\u7edf\u6587\u4ef6\u63cf\u8ff0\u7b26\u6cc4\u6f0f<\/span>
                                        \n close<\/span>(<\/span>sockfd)<\/span>;<\/span>
                                        \n }<\/span>
                                        \npublic<\/span>:<\/span>
                                        \n TcpServer<\/span> (<\/span>uint16_t<\/span> port =<\/span> gdefaultport)<\/span>:<\/span> _port<\/span>(<\/span>port)<\/span>,<\/span> _listensockfd<\/span>(<\/span>–<\/span>1<\/span>)<\/span>
                                        \n {<\/span>}<\/span>
                                        \n void<\/span> Init<\/span>(<\/span>callback_t cb)<\/span>
                                        \n {<\/span>
                                        \n \/\/ \u5c06\u5916\u90e8\u4f20\u8fdb\u6765\u7684\u4e1a\u52a1\u903b\u8f91\u6ce8\u518c\u5230\u670d\u52a1\u5668\u5185\u90e8<\/span>
                                        \n _cb =<\/span> cb;<\/span>
                                        \n \/\/ 1. \u521b\u5efa\u5957\u63a5\u5b57<\/span>
                                        \n \/\/ AF_INET\u4ee3\u8868\u4f7f\u7528IPv4\u534f\u8bae，SOCK_STREAM\u4ee3\u8868\u4f7f\u7528\u9762\u5411\u8fde\u63a5\u7684TCP\u5b57\u8282\u6d41<\/span>
                                        \n _listensockfd =<\/span> socket<\/span>(<\/span>AF_INET,<\/span> SOCK_STREAM,<\/span> 0<\/span>)<\/span>;<\/span> \/\/ \u8bbe\u7f6e\u62100\u5c31\u53ef\u4ee5\u4e86<\/span>
                                        \n if<\/span>(<\/span>_listensockfd <<\/span> 0<\/span>)<\/span>
                                        \n {<\/span>
                                        \n LOG<\/span>(<\/span>LogLevel::<\/span>FATAL)<\/span> <<<\/span> "create socket error: "<\/span> <<<\/span> _listensockfd;<\/span>
                                        \n exit<\/span>(<\/span>2<\/span>)<\/span>;<\/span>
                                        \n }<\/span>
                                        \n LOG<\/span>(<\/span>LogLevel::<\/span>INFO)<\/span> <<<\/span> "create socket success: "<\/span> <<<\/span> _listensockfd;<\/span><\/p>\n

                                        \/\/ 2.bind<\/span>
                                        \n \/\/ \u6211\u4eec\u8fd9\u91cc\u662f\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528\u6211\u4eec\u7684InetAddr\u7684,\u4f46\u662f\u6211\u4eec\u540e\u9762\u518d\u7528<\/span>
                                        \n struct<\/span> sockaddr_in<\/span> local;<\/span>
                                        \n socklen_t len =<\/span> sizeof<\/span>(<\/span>local)<\/span>;<\/span>
                                        \n memset<\/span>(<\/span>&<\/span>local,<\/span> 0<\/span>,<\/span> len)<\/span>;<\/span> \/\/ \u7ed3\u6784\u4f53\u6e05\u96f6，\u517b\u6210\u826f\u597d\u4e60\u60ef\u9632\u6b62\u810f\u6570\u636e<\/span>
                                        \n local.<\/span>sin_family =<\/span> AF_INET;<\/span>
                                        \n \/\/ htons\/htonl: \u5fc5\u987b\u5c06\u4e3b\u673a\u7684\u5b57\u8282\u5e8f\u8f6c\u6362\u4e3a\u7f51\u7edc\u7edf\u4e00\u89c4\u5b9a\u7684\u5927\u7aef\u5b57\u8282\u5e8f<\/span>
                                        \n local.<\/span>sin_port =<\/span> htons<\/span>(<\/span>_port)<\/span>;<\/span>
                                        \n local.<\/span>sin_addr.<\/span>s_addr =<\/span> htonl<\/span>(<\/span>INADDR_ANY)<\/span>;<\/span> \/\/ INADDR_ANY\u8868\u793a\u76d1\u542c\u672c\u673a\u6240\u6709\u7f51\u5361\u63a5\u53e3\u7684\u8bf7\u6c42<\/span><\/p>\n

                                        int<\/span> n =<\/span> bind<\/span>(<\/span>_listensockfd,<\/span> (<\/span>struct<\/span> sockaddr<\/span>*<\/span>)<\/span>&<\/span>local,<\/span> len)<\/span>;<\/span>
                                        \n if<\/span>(<\/span>n <<\/span> 0<\/span>)<\/span>
                                        \n {<\/span>
                                        \n LOG<\/span>(<\/span>LogLevel::<\/span>FATAL)<\/span> <<<\/span> "bind error: "<\/span> <<<\/span> _listensockfd;<\/span>
                                        \n exit<\/span>(<\/span>3<\/span>)<\/span>;<\/span>
                                        \n }<\/span>
                                        \n LOG<\/span>(<\/span>LogLevel::<\/span>INFO)<\/span> <<<\/span> "bind success: "<\/span> <<<\/span> _listensockfd;<\/span><\/p>\n

                                        \/\/ 3. \u8bbe\u7f6e\u6210\u76d1\u542c<\/span>
                                        \n \/\/ listen \u4f7f\u5f97\u670d\u52a1\u5668\u771f\u6b63\u5f00\u59cb\u5728\u7cfb\u7edf\u5185\u6838\u5c42\u9762\u201c\u88ab\u52a8\u5f85\u547d\u201d，gbacklog \u662f\u5185\u6838\u7ef4\u62a4\u7684\u5168\u8fde\u63a5\u961f\u5217\u957f\u5ea6<\/span>
                                        \n n =<\/span> listen<\/span>(<\/span>_listensockfd,<\/span> gbacklog)<\/span>;<\/span>
                                        \n if<\/span>(<\/span>n <<\/span> 0<\/span>)<\/span>
                                        \n {<\/span>
                                        \n LOG<\/span>(<\/span>LogLevel::<\/span>FATAL)<\/span> <<<\/span> "listen error: "<\/span> <<<\/span> _listensockfd;<\/span>
                                        \n exit<\/span>(<\/span>3<\/span>)<\/span>;<\/span>
                                        \n }<\/span>
                                        \n LOG<\/span>(<\/span>LogLevel::<\/span>INFO)<\/span> <<<\/span> "listen success: "<\/span> <<<\/span> _listensockfd;<\/span>
                                        \n }<\/span>
                                        \n void<\/span> Start<\/span>(<\/span>)<\/span>
                                        \n {<\/span>
                                        \n \/\/ \u591a\u8fdb\u7a0b\u7248\u672c\u7b49\u5f85\u7684\u6700\u4f73\u5b9e\u8df5<\/span>
                                        \n \/\/ \u5ffd\u7565 SIGCHLD \u4fe1\u53f7，\u544a\u8bc9\u5185\u6838：\u201c\u6211\u5bf9\u5b50\u8fdb\u7a0b\u7684\u6b7b\u6d3b\u4e0d\u611f\u5174\u8da3\u201d\u3002<\/span>
                                        \n \/\/ \u8fd9\u6837\u5b50\u8fdb\u7a0b\u7ed3\u675f\u540e，\u5185\u6838\u4f1a\u81ea\u52a8\u6e05\u7406\u5176\u8d44\u6e90，\u5b8c\u7f8e\u907f\u514d\u4e86\u50f5\u5c38\u8fdb\u7a0b\u7684\u4ea7\u751f，\u4e3b\u8fdb\u7a0b\u4e5f\u4e0d\u7528\u963b\u585e\u53bb wait\u3002<\/span>
                                        \n signal<\/span>(<\/span>SIGCHLD,<\/span> SIG_IGN)<\/span>;<\/span>
                                        \n while<\/span>(<\/span>true<\/span>)<\/span>
                                        \n {<\/span>
                                        \n struct<\/span> sockaddr_in<\/span> clientaddr;<\/span>
                                        \n socklen_t len =<\/span> sizeof<\/span>(<\/span>clientaddr)<\/span>;<\/span>
                                        \n \/\/ accept \u8d1f\u8d23\u4ece\u5e95\u5c42\u961f\u5217\u4e2d\u62ff\u53d6\u4e00\u4e2a\u5df2\u7ecf\u5efa\u7acb\u597d\u7684\u8fde\u63a5\u3002_listensockfd \u662f\u62c9\u5ba2\u7684，\u8fd4\u56de\u7684 sockfd \u662f\u5e72\u6d3b\u7684\u3002<\/span>
                                        \n int<\/span> sockfd =<\/span> accept<\/span>(<\/span>_listensockfd,<\/span> (<\/span>struct<\/span> sockaddr<\/span> *<\/span>)<\/span>&<\/span>clientaddr,<\/span> &<\/span>len)<\/span>;<\/span>
                                        \n if<\/span> (<\/span>sockfd <<\/span> 0<\/span>)<\/span>
                                        \n {<\/span>
                                        \n LOG<\/span>(<\/span>LogLevel::<\/span>WARNING)<\/span> <<<\/span> "accept error"<\/span>;<\/span>
                                        \n continue<\/span>;<\/span> \/\/ accept \u5931\u8d25\u5f80\u5f80\u662f\u5c40\u90e8\u7f51\u7edc\u6ce2\u52a8\u6216\u4fe1\u53f7\u6253\u65ad，\u4e0d\u5f71\u54cd\u5168\u5c40，\u7ee7\u7eed\u63a5\u5f85\u4e0b\u4e00\u4e2a\u5373\u53ef<\/span>
                                        \n }<\/span>
                                        \n \/\/ \u7f51\u7edc\u8f6c\u4e3b\u673a<\/span>
                                        \n InetAddr clientaddress<\/span>(<\/span>clientaddr)<\/span>;<\/span>
                                        \n LOG<\/span>(<\/span>LogLevel::<\/span>INFO)<\/span> <<<\/span> "get a new link: "<\/span> <<<\/span> clientaddress.<\/span>StringAddress<\/span>(<\/span>)<\/span> <<<\/span> " sockfd: "<\/span> <<<\/span> sockfd;<\/span><\/p>\n

                                        \/\/ version1 — \u591a\u8fdb\u7a0b\u7248\u672c<\/span>
                                        \n \/\/ fork() \u4f1a\u521b\u5efa\u4e00\u4e2a\u5b50\u8fdb\u7a0b，\u5b50\u8fdb\u7a0b\u4f1a\u62f7\u8d1d\u7236\u8fdb\u7a0b\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u8868<\/span>
                                        \n pid_t pid =<\/span> fork<\/span>(<\/span>)<\/span>;<\/span>
                                        \n if<\/span>(<\/span>pid <<\/span> 0<\/span>)<\/span>
                                        \n {<\/span>
                                        \n LOG<\/span>(<\/span>LogLevel::<\/span>ERROR)<\/span> <<<\/span> "fork error"<\/span>;<\/span>
                                        \n close<\/span>(<\/span>sockfd)<\/span>;<\/span>
                                        \n }<\/span>
                                        \n else<\/span> if<\/span>(<\/span>pid ==<\/span> 0<\/span>)<\/span>
                                        \n {<\/span>
                                        \n \/\/ \u5b50\u8fdb\u7a0b,\u62f7\u8d1d\u7236\u8fdb\u7a0b\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u8868，\u4ece\u800c\u548c\u7236\u8fdb\u7a0b\u770b\u5230\u540c\u4e00\u6279\u6587\u4ef6<\/span>
                                        \n \/\/ \u5173\u95ed\u81ea\u5df1\u4e0d\u9700\u8981\u7684\u6587\u4ef6fd<\/span>
                                        \n \/\/ \u5b50\u8fdb\u7a0b\u4e13\u804c\u8d1f\u8d23\u4e3a\u8fd9\u4e2a\u5ba2\u6237\u7aef\u670d\u52a1，\u4e0d\u8d1f\u8d23\u62c9\u5ba2，\u6240\u4ee5\u5173\u95ed\u76d1\u542c\u5957\u63a5\u5b57<\/span>
                                        \n close<\/span>(<\/span>_listensockfd)<\/span>;<\/span>
                                        \n \/\/ **************************************<\/span>
                                        \n \/\/ \u5b50\u8fdb\u7a0b<\/span>
                                        \n \/\/ if(fork() > 0)<\/span>
                                        \n \/\/ exit(0);<\/span>
                                        \n \/\/ \/\/ \u5b59\u5b50\u8fdb\u7a0b — \u4f60\u53bb\u6267\u884c<\/span>
                                        \n \/\/ Service(sockfd, clientaddress);<\/span>
                                        \n \/\/ **************************************<\/span>
                                        \n Service<\/span>(<\/span>sockfd,<\/span> clientaddress)<\/span>;<\/span>
                                        \n exit<\/span>(<\/span>0<\/span>)<\/span>;<\/span> \/\/ \u670d\u52a1\u5b8c\u6bd5\u540e，\u5b50\u8fdb\u7a0b\u5fc5\u987b\u9000\u51fa，\u7edd\u4e0d\u80fd\u8ba9\u5b83\u56de\u5230\u5916\u5c42\u7684 while \u5faa\u73af\u53bb accept<\/span>
                                        \n }<\/span>
                                        \n else<\/span>{<\/span>}<\/span>
                                        \n \/\/ \u7236\u8fdb\u7a0b\u4e0d\u9700\u8981\u8fd9\u4e2a<\/span>
                                        \n \/\/ \u56e0\u4e3a\u7236\u8fdb\u7a0b\u5df2\u7ecf\u628a\u8fd9\u4e2a sockfd \u4ea4\u7ed9\u5b50\u8fdb\u7a0b\u5904\u7406\u4e86\u3002\u5982\u679c\u4e0d\u5173，\u6bcf\u6765\u4e00\u4e2a\u5ba2\u4eba\u7236\u8fdb\u7a0b\u5c31\u591a\u5360\u4e00\u4e2a fd，\u5f88\u5feb\u5c31\u4f1a fd \u8017\u5c3d\u5bfc\u81f4\u670d\u52a1\u5668\u5d29\u6e83\u3002<\/span>
                                        \n close<\/span>(<\/span>sockfd)<\/span>;<\/span>
                                        \n \/\/ \/\/ \u7236\u8fdb\u7a0b<\/span>
                                        \n \/\/ pid_t rid = waitpid(pid, nullptr, 0);<\/span>
                                        \n }<\/span>
                                        \n }<\/span>
                                        \n ~<\/span>TcpServer<\/span>(<\/span>)<\/span>{<\/span>}<\/span>
                                        \nprivate<\/span>:<\/span>
                                        \n uint16_t<\/span> _port;<\/span>
                                        \n int<\/span> _listensockfd;<\/span>
                                        \n callback_t _cb;<\/span> \/\/ \u5b58\u653e\u5916\u90e8\u6ce8\u5165\u7684\u4e1a\u52a1\u903b\u8f91\u56de\u8c03\u51fd\u6570<\/span>
                                        \n}<\/span>;<\/span>
                                        \n#<\/span>endif<\/span><\/span><\/p>\n

                                        \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

                                        3.3.3 \u5ba2\u6237\u7aef\u5b8c\u6574\u4ee3\u7801\u89e3\u6790<\/h4>\n

                                        #<\/span>include<\/span> "InetAddr.hpp"<\/span><\/span>
                                        \n#<\/span>include<\/span> <arpa\/inet.h><\/span><\/span>
                                        \n#<\/span>include<\/span> <cstdint><\/span><\/span>
                                        \n#<\/span>include<\/span> <iostream><\/span><\/span>
                                        \n#<\/span>include<\/span> <netinet\/in.h><\/span><\/span>
                                        \n#<\/span>include<\/span> <string><\/span><\/span>
                                        \n#<\/span>include<\/span> <sys\/socket.h><\/span><\/span>
                                        \n#<\/span>include<\/span> <sys\/types.h><\/span><\/span>
                                        \n#<\/span>include<\/span> <unistd.h><\/span><\/span><\/p>\n

                                        \/\/ \u6253\u5370\u4f7f\u7528\u8bf4\u660e\u624b\u518c\u3002<\/span>
                                        \n\/\/ （\u6ce8：\u539f\u4ee3\u7801\u8fd9\u91cc\u7684\u63d0\u793a\u5b57\u4e32\u4e3a " ServerPort"，\u4f46\u4e0b\u9762\u903b\u8f91\u5b9e\u9645\u9700\u8981 IP \u548c Port，\u8fd9\u662f\u4e2a\u5c0f\u7455\u75b5，\u4f46\u4e0d\u5f71\u54cd\u6574\u4f53\u903b\u8f91）<\/span>
                                        \nvoid<\/span> Usage<\/span>(<\/span>std::<\/span>string procname)<\/span>
                                        \n{<\/span>
                                        \n std::<\/span>cout <<<\/span> "Usage: "<\/span> <<<\/span> procname <<<\/span> " ServerPort"<\/span> <<<\/span> std::<\/span>endl;<\/span>
                                        \n}<\/span><\/p>\n

                                        \/\/ \u5ba2\u6237\u7aef\u542f\u52a8\u793a\u4f8b: .\/TcpClient 127.0.0.1 8080<\/span>
                                        \nint<\/span> main<\/span>(<\/span>int<\/span> argc,<\/span> char<\/span> *<\/span>argv[<\/span>]<\/span>)<\/span>
                                        \n{<\/span>
                                        \n \/\/ \u5ba2\u6237\u7aef\u542f\u52a8\u5fc5\u987b\u77e5\u9053\u76ee\u6807\u670d\u52a1\u5668\u662f\u8c01，\u6240\u4ee5\u53c2\u6570\u4e2a\u6570\u5fc5\u987b\u4e3a 3 (\u7a0b\u5e8f\u540d\u3001\u76ee\u6807IP\u3001\u76ee\u6807\u7aef\u53e3)<\/span>
                                        \n if<\/span>(<\/span>argc !=<\/span> 3<\/span>)<\/span>
                                        \n {<\/span>
                                        \n Usage<\/span>(<\/span>argv[<\/span>0<\/span>]<\/span>)<\/span>;<\/span>
                                        \n exit<\/span>(<\/span>1<\/span>)<\/span>;<\/span>
                                        \n }<\/span><\/p>\n

                                        \/\/ \u89e3\u6790\u547d\u4ee4\u884c\u53c2\u6570\u63d0\u53d6\u76ee\u6807\u670d\u52a1\u5668\u4fe1\u606f<\/span>
                                        \n std::<\/span>string serverIp =<\/span> argv[<\/span>1<\/span>]<\/span>;<\/span>
                                        \n uint16_t<\/span> serverPort =<\/span> std::<\/span>stoi<\/span>(<\/span>argv[<\/span>2<\/span>]<\/span>)<\/span>;<\/span><\/p>\n

                                        \/\/ 1. \u521b\u5efasocket\u5957\u63a5\u5b57<\/span>
                                        \n \/\/ \u5ba2\u6237\u7aef\u4e5f\u9700\u8981\u4e00\u4e2a\u901a\u4fe1\u7aef\u70b9\u3002AF_INET(IPv4), SOCK_STREAM(TCP\u534f\u8bae)<\/span>
                                        \n int<\/span> sockfd =<\/span> socket<\/span>(<\/span>AF_INET,<\/span> SOCK_STREAM,<\/span> 0<\/span>)<\/span>;<\/span>
                                        \n if<\/span>(<\/span>sockfd <<\/span> 0<\/span>)<\/span>
                                        \n {<\/span>
                                        \n std::<\/span>cerr <<<\/span> "socket error"<\/span> <<<\/span> std::<\/span>endl;<\/span>
                                        \n exit<\/span>(<\/span>2<\/span>)<\/span>;<\/span>
                                        \n }<\/span><\/p>\n

                                        \/\/ 2. \u5efa\u7acb\u8fde\u63a5<\/span>
                                        \n \/\/ \u5c01\u88c5\u670d\u52a1\u5668\u7684 IP \u548c\u7aef\u53e3\u5730\u5740\u4fe1\u606f<\/span>
                                        \n InetAddr serveraddress<\/span>(<\/span>serverPort,<\/span> serverIp)<\/span>;<\/span><\/p>\n

                                        \/\/ \u6838\u5fc3\u8003\u70b9：\u5ba2\u6237\u7aef\u4e0d\u9700\u8981\u624b\u52a8 bind \u7ed1\u5b9a\u672c\u673a\u7aef\u53e3！<\/span>
                                        \n \/\/ \u5f53\u6211\u4eec\u8c03\u7528 connect \u5411\u670d\u52a1\u5668\u53d1\u8d77\u8fde\u63a5（TCP \u4e09\u6b21\u63e1\u624b）\u65f6，\u64cd\u4f5c\u7cfb\u7edf\u4f1a\u5728\u5e95\u5c42\u81ea\u52a8\u4e3a\u8be5\u5ba2\u6237\u7aef\u5206\u914d\u4e00\u4e2a\u7a7a\u95f2\u7684\u968f\u673a\u7aef\u53e3\u3002<\/span>
                                        \n \/\/ \u8fd9\u5b8c\u7f8e\u907f\u514d\u4e86\u5982\u679c\u5ba2\u6237\u7aef\u628a\u7aef\u53e3\u5199\u6b7b，\u5bfc\u81f4\u7aef\u53e3\u88ab\u5360\u7528\u65e0\u6cd5\u542f\u52a8\u7684\u95ee\u9898\u3002<\/span>
                                        \n int<\/span> n =<\/span> connect<\/span>(<\/span>sockfd,<\/span> serveraddress.<\/span>Addr<\/span>(<\/span>)<\/span>,<\/span> serveraddress.<\/span>AddrLen<\/span>(<\/span>)<\/span>)<\/span>;<\/span>
                                        \n if<\/span>(<\/span>n <<\/span> 0<\/span>)<\/span>
                                        \n {<\/span>
                                        \n std::<\/span>cerr <<<\/span> "connect error"<\/span> <<<\/span> std::<\/span>endl;<\/span>
                                        \n exit<\/span>(<\/span>3<\/span>)<\/span>;<\/span> \/\/ \u8fde\u63a5\u5931\u8d25\u901a\u5e38\u662f\u56e0\u4e3a\u7f51\u7edc\u4e0d\u901a\u6216\u76ee\u6807\u670d\u52a1\u5668\u8fdb\u7a0b\u672a\u542f\u52a8<\/span>
                                        \n }<\/span><\/p>\n

                                        \/\/ 3. sockfd\u901a\u4fe1\u8fc7\u7a0b<\/span>
                                        \n \/\/ \u8fdb\u5165\u957f\u8fde\u63a5\u7684\u8bf7\u6c42-\u54cd\u5e94\u5faa\u73af (\u4e00\u95ee\u4e00\u7b54\u6a21\u5f0f)<\/span>
                                        \n while<\/span>(<\/span>true<\/span>)<\/span>
                                        \n {<\/span>
                                        \n std::<\/span>string line;<\/span>
                                        \n std::<\/span>cout <<<\/span> "Please Enter# "<\/span>;<\/span>
                                        \n \/\/ \u4f7f\u7528 std::getline \u800c\u4e0d\u662f cin >>，\u662f\u56e0\u4e3a\u7528\u6237\u8f93\u5165\u7684\u547d\u4ee4\u4e2d\u901a\u5e38\u5305\u542b\u7a7a\u683c（\u5982 "ls -a -l"）<\/span>
                                        \n \/\/ cin >> \u9047\u5230\u7a7a\u683c\u5c31\u4f1a\u505c\u6b62\u8bfb\u53d6，\u800c getline \u4f1a\u8bfb\u53d6\u5b8c\u6574\u7684\u4e00\u884c<\/span>
                                        \n std::<\/span>getline<\/span>(<\/span>std::<\/span>cin,<\/span> line)<\/span>;<\/span><\/p>\n

                                        \/\/ \u5199<\/span>
                                        \n \/\/ TCP \u662f\u5168\u53cc\u5de5\u7684，\u5ba2\u6237\u7aef\u7528 sockfd \u5411\u670d\u52a1\u5668\u53d1\u6570\u636e\u3002<\/span>
                                        \n ssize_t n =<\/span> write<\/span>(<\/span>sockfd,<\/span> line.<\/span>c_str<\/span>(<\/span>)<\/span>,<\/span> line.<\/span>size<\/span>(<\/span>)<\/span>)<\/span>;<\/span>
                                        \n (<\/span>void<\/span>)<\/span>n;<\/span> \/\/ \u5f3a\u5236\u7c7b\u578b\u8f6c\u6362，\u7528\u6765\u6d88\u9664\u7f16\u8bd1\u5668\u5173\u4e8e "\u53d8\u91cf n \u58f0\u660e\u4e86\u4f46\u672a\u4f7f\u7528" \u7684\u8b66\u544a<\/span><\/p>\n

                                        \/\/ \u8bfb<\/span>
                                        \n char<\/span> buffer[<\/span>4096<\/span>]<\/span>;<\/span> \/\/ \u5f00\u5927\u4e00\u70b9<\/span>
                                        \n \/\/ \u4e4b\u524d\u6d4b\u8bd5\u8fc7，\u5982\u679c\u63a5\u6536\u670d\u52a1\u5668 `ls -al` \u8fd4\u56de\u7684\u6570\u636e，\u7f13\u51b2\u533a\u592a\u5c0f\u4f1a\u5bfc\u81f4\u6570\u636e\u622a\u65ad\u3002<\/span>
                                        \n \/\/ \u6240\u4ee5\u8fd9\u91cc\u5f00\u4e86 4096 \u5b57\u8282\u3002\u4f46\u8981\u6ce8\u610f，\u5728\u7eaf\u9762\u5411\u5b57\u8282\u6d41\u7684 TCP \u4e2d，\u4e00\u6b21 read \u4f9d\u7136\u4e0d\u4e00\u5b9a\u80fd\u8bfb\u5b8c\u8d85\u5927\u6570\u636e\u3002<\/span>
                                        \n ssize_t m =<\/span> read<\/span>(<\/span>sockfd,<\/span> buffer,<\/span> sizeof<\/span>(<\/span>buffer)<\/span> –<\/span> 1<\/span>)<\/span>;<\/span>
                                        \n if<\/span>(<\/span>m ><\/span> 0<\/span>)<\/span>
                                        \n {<\/span>
                                        \n buffer[<\/span>m]<\/span> =<\/span> 0<\/span>;<\/span> \/\/ \u624b\u52a8\u5728\u672b\u5c3e\u6dfb\u52a0 '\\\\0'，\u5c06\u539f\u59cb\u5b57\u8282\u6d41\u8f6c\u5316\u4e3a C \u98ce\u683c\u5b57\u7b26\u4e32\u4ee5\u4fbf\u5b89\u5168\u6253\u5370<\/span>
                                        \n std::<\/span>cout <<<\/span> "-> "<\/span> <<<\/span> buffer <<<\/span> std::<\/span>endl;<\/span>
                                        \n }<\/span>
                                        \n else<\/span> if<\/span>(<\/span>m ==<\/span> 0<\/span>)<\/span>
                                        \n {<\/span>
                                        \n \/\/ \u670d\u52a1\u5668\u7aef\u5173\u95ed\u4e86\u8fde\u63a5（\u6bd4\u5982\u670d\u52a1\u7aef\u88ab kill \u6389\u4e86，\u6216\u8005\u662f\u4e00\u4e2a\u77ed\u670d\u52a1\u5904\u7406\u5b8c\u4e3b\u52a8 close \u4e86）<\/span>
                                        \n \/\/ \u5ba2\u6237\u7aef\u611f\u77e5\u5230 EOF，\u968f\u4e4b\u9000\u51fa<\/span>
                                        \n std::<\/span>cerr <<<\/span> "server quit!"<\/span> <<<\/span> std::<\/span>endl;<\/span>
                                        \n break<\/span>;<\/span>
                                        \n }<\/span>
                                        \n else<\/span>
                                        \n {<\/span>
                                        \n std::<\/span>cerr <<<\/span> "read error"<\/span> <<<\/span> std::<\/span>endl;<\/span>
                                        \n break<\/span>;<\/span>
                                        \n }<\/span>
                                        \n }<\/span><\/p>\n

                                        \/\/ \u9000\u51fa\u5faa\u73af\u540e，\u5173\u95ed\u5c5e\u4e8e\u5ba2\u6237\u7aef\u7684\u5957\u63a5\u5b57<\/span>
                                        \n \/\/ \u6b64\u65f6\u64cd\u4f5c\u7cfb\u7edf\u5e95\u5c42\u4f1a\u5411\u670d\u52a1\u5668\u53d1\u9001 TCP \u56db\u6b21\u6325\u624b\u7684 FIN \u62a5\u6587，\u6b63\u5f0f\u65ad\u5f00\u8fde\u63a5<\/span>
                                        \n close<\/span>(<\/span>sockfd)<\/span>;<\/span>
                                        \n return<\/span> 0<\/span>;<\/span>
                                        \n}<\/span><\/p>\n

                                        \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

                                        3.3.4 \u670d\u52a1\u7aef\u4e3b\u51fd\u6570\u4ee3\u7801（TcpServer.cc）<\/h4>\n

                                        #<\/span>include<\/span> "TcpServer.hpp"<\/span><\/span>
                                        \n#<\/span>include<\/span> "ExcuteCommand.hpp"<\/span><\/span>
                                        \n#<\/span>include<\/span> "Logger.hpp"<\/span><\/span>
                                        \n#<\/span>include<\/span> <cstdint><\/span><\/span>
                                        \n#<\/span>include<\/span> <memory><\/span> \/\/ \u63d0\u4f9b std::unique_ptr \u7b49\u667a\u80fd\u6307\u9488\u7684\u652f\u6301<\/span><\/span><\/p>\n

                                        \/\/ \u6253\u5370\u7a0b\u5e8f\u7684\u4f7f\u7528\u8bf4\u660e\u624b\u518c<\/span>
                                        \n\/\/ \u5f53\u7528\u6237\u5728\u547d\u4ee4\u884c\u542f\u52a8\u7a0b\u5e8f\u7684\u53c2\u6570\u6570\u91cf\u4e0d\u7b26\u5408\u9884\u671f\u65f6，\u8c03\u7528\u6b64\u51fd\u6570\u8fdb\u884c\u63d0\u793a<\/span>
                                        \nvoid<\/span> Usage<\/span>(<\/span>std::<\/span>string procname)<\/span>
                                        \n{<\/span>
                                        \n \/\/ procname \u901a\u5e38\u63a5\u6536\u7684\u662f argv[0]，\u5373\u5f53\u524d\u53ef\u6267\u884c\u7a0b\u5e8f\u7684\u8def\u5f84\u6216\u540d\u79f0<\/span>
                                        \n std::<\/span>cout <<<\/span> "Usage: "<\/span> <<<\/span> procname <<<\/span> " ServerPort"<\/span> <<<\/span> std::<\/span>endl;<\/span>
                                        \n}<\/span><\/p>\n

                                        \/\/ \u6807\u51c6\u542f\u52a8\u65b9\u5f0f: .\/tcp_echo_server 8080<\/span>
                                        \nint<\/span> main<\/span>(<\/span>int<\/span> argc,<\/span> char<\/span> *<\/span>argv[<\/span>]<\/span>)<\/span>
                                        \n{<\/span>
                                        \n \/\/ \u53c2\u6570\u6821\u9a8c：\u786e\u4fdd\u7528\u6237\u8f93\u5165\u4e86\u7a0b\u5e8f\u540d\u548c\u76d1\u542c\u7aef\u53e3\u53f7\u8fd9\u4e24\u4e2a\u53c2\u6570<\/span>
                                        \n if<\/span>(<\/span>argc !=<\/span> 2<\/span>)<\/span>
                                        \n {<\/span>
                                        \n Usage<\/span>(<\/span>argv[<\/span>0<\/span>]<\/span>)<\/span>;<\/span>
                                        \n exit<\/span>(<\/span>1<\/span>)<\/span>;<\/span>
                                        \n }<\/span><\/p>\n

                                        \/\/ \u521d\u59cb\u5316\u65e5\u5fd7\u7cfb\u7edf，\u5c06\u540e\u7eed\u4ea7\u751f\u7684\u65e5\u5fd7\u4fe1\u606f\u8f93\u51fa\u5230\u63a7\u5236\u53f0<\/span>
                                        \n ENABLE_CONSOLE_LOG_STRATEGY<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

                                        \/\/ \u89e3\u6790\u547d\u4ee4\u884c\u53c2\u6570，\u5c06\u5b57\u7b26\u4e32\u683c\u5f0f\u7684\u7aef\u53e3\u53f7 (argv[1]) \u8f6c\u6362\u4e3a 16\u4f4d\u65e0\u7b26\u53f7\u6574\u6570<\/span>
                                        \n uint16_t<\/span> ServerPort =<\/span> std::<\/span>stoi<\/span>(<\/span>argv[<\/span>1<\/span>]<\/span>)<\/span>;<\/span><\/p>\n

                                        \/\/ ==============================================================================<\/span>
                                        \n \/\/ \u67b6\u6784\u6838\u5fc3：\u6a21\u5757\u5316\u4e0e\u4f9d\u8d56\u6ce8\u5165<\/span>
                                        \n \/\/ ==============================================================================<\/span><\/p>\n

                                        \/\/ 1. \u521b\u5efa\u4e00\u4e2a\u547d\u4ee4\u884c\u5904\u7406\u7684\u6a21\u5757 (\u4ee3\u8868\u3010\u4e1a\u52a1\u5c42 \/ \u5e94\u7528\u5c42\u3011)<\/span>
                                        \n \/\/ \u4e13\u804c\u8d1f\u8d23\u5224\u65ad\u547d\u4ee4\u662f\u5426\u5b89\u5168（\u767d\u540d\u5355），\u4ee5\u53ca\u4f7f\u7528 popen \u5728\u5e95\u5c42\u6267\u884c\u547d\u4ee4\u3002<\/span>
                                        \n \/\/ \u5b83\u6839\u672c\u4e0d\u77e5\u9053\u7f51\u7edc\u7684\u5b58\u5728，\u662f\u4e00\u4e2a\u7eaf\u7cb9\u7684\u4e1a\u52a1\u7ec4\u4ef6\u3002<\/span>
                                        \n std::<\/span>unique_ptr<<\/span>ExcuteCommand><\/span> excute =<\/span> std::<\/span>make_unique<\/span><<\/span>ExcuteCommand><\/span><\/span><\/span>(<\/span>)<\/span>;<\/span><\/p>\n

                                        \/\/ 2. \u521b\u5efa\u4e00\u4e2a\u7f51\u7edc\u670d\u52a1\u6a21\u5757 (\u4ee3\u8868\u3010\u7f51\u7edc\u901a\u4fe1\u5c42\u3011)<\/span>
                                        \n \/\/ \u4e13\u804c\u8d1f\u8d23 socket \u521b\u5efa\u3001bind\u3001listen \u4ee5\u53ca\u591a\u8fdb\u7a0b\u7684\u5e76\u53d1\u8c03\u5ea6 (accept \/ fork)\u3002<\/span>
                                        \n \/\/ \u5b83\u53ea\u77e5\u9053\u6536\u53d1\u5b57\u7b26\u4e32，\u6839\u672c\u4e0d\u77e5\u9053\u8fd9\u4e9b\u5b57\u7b26\u4e32\u4ee3\u8868\u7684\u662f\u7cfb\u7edf\u547d\u4ee4\u3002<\/span>
                                        \n std::<\/span>unique_ptr<<\/span>TcpServer><\/span> tsvr =<\/span> std::<\/span>make_unique<\/span><<\/span>TcpServer><\/span><\/span><\/span>(<\/span>ServerPort)<\/span>;<\/span><\/p>\n

                                        \/\/ 3. \u5c06\u4e1a\u52a1\u6a21\u5757\u201c\u6ce8\u5165\u201d\u5230\u7f51\u7edc\u6a21\u5757\u4e2d (\u89e3\u8026\u7684\u7075\u9b42\u6240\u5728)<\/span>
                                        \n \/\/ tsvr->Init \u9700\u8981\u4e00\u4e2a function<string(string)> \u7c7b\u578b\u7684\u56de\u8c03\u51fd\u6570\u3002<\/span>
                                        \n \/\/ \u8fd9\u91cc\u4f7f\u7528\u4e86 C++11 \u7684 Lambda \u8868\u8fbe\u5f0f：<\/span>
                                        \n \/\/ – [&excute]：\u901a\u8fc7\u5f15\u7528\u6355\u83b7\u5916\u90e8\u4f5c\u7528\u57df\u7684 excute \u667a\u80fd\u6307\u9488\u5bf9\u8c61\u3002<\/span>
                                        \n \/\/ – (std::string cmdstring) -> std::string：\u5b9a\u4e49\u4e86\u8f93\u5165\u548c\u8f93\u51fa\u53c2\u6570，\u5b8c\u7f8e\u5951\u5408 callback_t\u3002<\/span>
                                        \n \/\/ \u8fd0\u884c\u65f6\u8868\u73b0：\u5f53 TcpServer \u6536\u5230\u6570\u636e\u65f6，\u4f1a\u6267\u884c\u5927\u62ec\u53f7\u91cc\u7684\u5185\u5bb9，\u5373\u628a\u6570\u636e\u4ea4\u7ed9 excute \u53bb\u6267\u884c，\u5e76\u628a\u7ed3\u679c\u62ff\u56de\u6765\u3002<\/span>
                                        \n tsvr-><\/span>Init<\/span>(<\/span>[<\/span>&<\/span>excute]<\/span>(<\/span>std::<\/span>string cmdstring)<\/span>-><\/span>std::<\/span>string{<\/span>
                                        \n return<\/span> excute-><\/span>Excute<\/span>(<\/span>cmdstring)<\/span>;<\/span>
                                        \n }<\/span>)<\/span>;<\/span><\/p>\n

                                        \/\/ 4. \u542f\u52a8\u7f51\u7edc\u670d\u52a1\u5668，\u8fdb\u5165 accept \u963b\u585e\u5faa\u73af，\u6b63\u5f0f\u5f00\u59cb\u63d0\u4f9b\u670d\u52a1<\/span>
                                        \n tsvr-><\/span>Start<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

                                        return<\/span> 0<\/span>;<\/span> \/\/ \u7a0b\u5e8f\u6b63\u5e38\u9000\u51fa（\u5b9e\u9645\u4e0a\u56e0\u4e3a Start \u662f\u6b7b\u5faa\u73af，\u4e00\u822c\u4e0d\u4f1a\u6267\u884c\u5230\u8fd9\u91cc）<\/span>
                                        \n}<\/span><\/p>\n

                                        \u5b9e\u9645\u4ea4\u4e92\u8868\u73b0：<\/p>\n

                                        \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

                                        \n

                                        \u56db. V4 \u7ebf\u7a0b\u6c60\u7248\u672c：\u9ad8\u5e76\u53d1 Echo \u670d\u52a1\u5668\u5b9e\u73b0<\/h2>\n

                                        \u591a\u7ebf\u7a0b\u7248\u672c\u867d\u7136\u89e3\u51b3\u4e86\u5e76\u53d1\u95ee\u9898，\u4f46\u5728\u77ed\u8fde\u63a5\u9ad8\u5e76\u53d1\u573a\u666f\u4e0b，\u9891\u7e41\u521b\u5efa\u9500\u6bc1\u7ebf\u7a0b\u4f1a\u5e26\u6765\u5927\u91cf\u7684\u7cfb\u7edf\u5f00\u9500，\u540c\u65f6\u65e0\u9650\u5236\u521b\u5efa\u7ebf\u7a0b\u4f1a\u5bfc\u81f4\u7cfb\u7edf\u8c03\u5ea6\u538b\u529b\u5267\u589e\u3002\u800c\u7ebf\u7a0b\u6c60\u6a21\u578b\u6b63\u662f\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u7684\u6700\u4f18\u65b9\u6848\u3002<\/p>\n

                                        4.1 \u7ebf\u7a0b\u6c60\u6838\u5fc3\u8bbe\u8ba1\u601d\u60f3<\/h3>\n

                                        \u7ebf\u7a0b\u6c60\u672c\u8d28\u4e0a\u662f\u751f\u4ea7\u8005 – \u6d88\u8d39\u8005\u6a21\u578b\u7684\u7ecf\u5178\u5e94\u7528，\u6838\u5fc3\u8bbe\u8ba1\u5982\u4e0b：<\/p>\n

                                          \n
                                        • \u9884\u521b\u5efa\u7ebf\u7a0b：\u670d\u52a1\u5668\u542f\u52a8\u65f6，\u9884\u5148\u521b\u5efa\u56fa\u5b9a\u6570\u91cf\u7684\u5de5\u4f5c\u7ebf\u7a0b，\u907f\u514d\u9891\u7e41\u521b\u5efa\u9500\u6bc1\u7ebf\u7a0b\u7684\u5f00\u9500\u3002<\/li>\n
                                        • \u4efb\u52a1\u961f\u5217：\u4e3b\u7ebf\u7a0b（accept \u7ebf\u7a0b）\u4f5c\u4e3a\u751f\u4ea7\u8005，\u5c06\u5ba2\u6237\u7aef\u8fde\u63a5\u5904\u7406\u4efb\u52a1\u5c01\u88c5\u540e\u653e\u5165\u4efb\u52a1\u961f\u5217\u3002<\/li>\n
                                        • \u7ebf\u7a0b\u8c03\u5ea6：\u5de5\u4f5c\u7ebf\u7a0b\u4f5c\u4e3a\u6d88\u8d39\u8005，\u5faa\u73af\u4ece\u4efb\u52a1\u961f\u5217\u4e2d\u53d6\u51fa\u4efb\u52a1\u6267\u884c，\u6ca1\u6709\u4efb\u52a1\u65f6\u901a\u8fc7\u6761\u4ef6\u53d8\u91cf\u6302\u8d77\u7b49\u5f85\u3002<\/li>\n
                                        • \u5355\u4f8b\u6a21\u5f0f：\u91c7\u7528\u61d2\u6c49\u6a21\u5f0f + \u53cc\u68c0\u67e5\u9501\u5b9e\u73b0\u7ebf\u7a0b\u6c60\u5355\u4f8b，\u4fdd\u8bc1\u5168\u5c40\u552f\u4e00\u5b9e\u4f8b，\u907f\u514d\u8d44\u6e90\u91cd\u590d\u5360\u7528\u3002<\/li>\n
                                        • \u4f18\u96c5\u9000\u51fa：\u505c\u6b62\u7ebf\u7a0b\u6c60\u65f6，\u5524\u9192\u6240\u6709\u5de5\u4f5c\u7ebf\u7a0b，\u5904\u7406\u5b8c\u5269\u4f59\u4efb\u52a1\u540e\u5b89\u5168\u9000\u51fa\u3002<\/li>\n<\/ul>\n

                                          4.2 \u7ebf\u7a0b\u6c60\u6a21\u677f\u7c7b\u6df1\u5ea6\u89e3\u6790（ThreadPool.hpp）<\/h3>\n

                                          \u6211\u4eec\u5b9e\u73b0\u7684\u7ebf\u7a0b\u6c60\u662f\u6a21\u677f\u7c7b，\u652f\u6301\u4efb\u610f\u7c7b\u578b\u7684\u4efb\u52a1，\u5177\u5907\u6781\u9ad8\u7684\u901a\u7528\u6027，\u540c\u65f6\u96c6\u6210\u4e86\u4e4b\u524d\u5c01\u88c5\u7684\u4e92\u65a5\u9501\u3001\u6761\u4ef6\u53d8\u91cf\u3001\u7ebf\u7a0b\u7c7b，\u662f\u5de5\u4e1a\u7ea7\u7684\u5b9e\u73b0\u65b9\u6848\u3002<\/p>\n

                                          #<\/span>ifndef<\/span> THREADPOOL_HPP<\/span><\/span>
                                          \n#<\/span>define<\/span> THREADPOOL_HPP<\/span><\/span><\/p>\n

                                          \/\/ \u53ef\u4ee5\u770b\u5230\u6211\u4eec\u76f4\u63a5\u4f7f\u7528\u4e86\u5f88\u591a\u4e4b\u524d\u81ea\u5df1\u9020\u7684\u8f6e\u5b50<\/span>
                                          \n#<\/span>include<\/span> <iostream><\/span><\/span>
                                          \n#<\/span>include<\/span> <memory><\/span><\/span>
                                          \n#<\/span>include<\/span> <pthread.h><\/span><\/span>
                                          \n#<\/span>include<\/span> <vector><\/span><\/span>
                                          \n#<\/span>include<\/span> <queue><\/span><\/span>
                                          \n#<\/span>include<\/span> "Thread.hpp"<\/span><\/span>
                                          \n#<\/span>include<\/span> "Logger.hpp"<\/span><\/span>
                                          \n#<\/span>include<\/span> "Mutex.hpp"<\/span><\/span>
                                          \n#<\/span>include<\/span> "Cond.hpp"<\/span><\/span>
                                          \nusing<\/span> namespace<\/span> LogModule;<\/span><\/p>\n

                                          const<\/span> static<\/span> int<\/span> gDefaultCnt =<\/span> 5<\/span>;<\/span><\/p>\n

                                          \/**
                                          \n * @brief \u7ebf\u7a0b\u6c60\u5355\u4f8b\u6a21\u677f\u7c7b
                                          \n * \u91c7\u7528\u4e86\u201c\u61d2\u6c49\u6a21\u5f0f\u201d\u5b9e\u73b0，\u5373\u5728\u7b2c\u4e00\u6b21\u8c03\u7528 GetInstance \u65f6\u624d\u8fdb\u884c\u5b9e\u4f8b\u5316\u3002
                                          \n *\/<\/span>
                                          \ntemplate<\/span><<\/span>typename<\/span> T<\/span>><\/span>
                                          \nclass<\/span> ThreadPool<\/span>
                                          \n{<\/span>
                                          \nprivate<\/span>:<\/span>
                                          \n \/\/ \u5185\u90e8\u903b\u8f91：\u5224\u5b9a\u961f\u5217\u72b6\u6001<\/span>
                                          \n bool<\/span> IsEmptyQueue<\/span>(<\/span>)<\/span>
                                          \n {<\/span>
                                          \n return<\/span> _queue.<\/span>empty<\/span>(<\/span>)<\/span>;<\/span>
                                          \n }<\/span><\/p>\n

                                          \/\/ \u5185\u90e8\u903b\u8f91：\u539f\u5b50\u5316\u63d0\u53d6\u4efb\u52a1（\u8c03\u7528\u524d\u9700\u6301\u6709\u9501）<\/span>
                                          \n T PopHelper<\/span>(<\/span>)<\/span>
                                          \n {<\/span>
                                          \n T t =<\/span> _queue.<\/span>front<\/span>(<\/span>)<\/span>;<\/span>
                                          \n _queue.<\/span>pop<\/span>(<\/span>)<\/span>;<\/span>
                                          \n return<\/span> t;<\/span>
                                          \n }<\/span><\/p>\n

                                          \/**
                                          \n * @brief \u6d88\u8d39\u8005\u6838\u5fc3\u6267\u884c\u6d41
                                          \n * \u8fd0\u884c\u4e8e\u5b50\u7ebf\u7a0b\u6808\u4e2d，\u901a\u8fc7\u6761\u4ef6\u53d8\u91cf\u5b9e\u73b0\u9ad8\u6548\u7684\u4efb\u52a1\u7b49\u5f85\u4e0e\u5524\u9192\u3002
                                          \n *\/<\/span>
                                          \n void<\/span> ThreadRoutine<\/span>(<\/span>)<\/span>
                                          \n {<\/span>
                                          \n char<\/span> name[<\/span>64<\/span>]<\/span>;<\/span>
                                          \n pthread_getname_np<\/span>(<\/span>pthread_self<\/span>(<\/span>)<\/span>,<\/span> name,<\/span> sizeof<\/span>(<\/span>name)<\/span>)<\/span>;<\/span>
                                          \n while<\/span>(<\/span>true<\/span>)<\/span>
                                          \n {<\/span>
                                          \n T task;<\/span> \/\/ \u4efb\u52a1\u5bf9\u8c61<\/span>
                                          \n \/\/ \u4e34\u754c\u533a\u4f5c\u7528\u57df：\u786e\u4fdd\u9501\u7684\u6301\u6709\u65f6\u95f4\u6700\u77ed\u5316<\/span>
                                          \n {<\/span>
                                          \n LockGuard lockGuard<\/span>(<\/span>&<\/span>_mutex)<\/span>;<\/span> \/\/ \u52a0\u9501\u4fdd\u62a4<\/span><\/p>\n

                                          \/\/ 1. \u4efb\u52a1\u961f\u5217\u4e3a\u7a7a && \u7ebf\u7a0b\u5904\u4e8e\u8fd0\u884c\u72b6\u6001(\u4e0d\u9000\u51fa) — \u5141\u8bb8\u4f11\u7720<\/span>
                                          \n \/**
                                          \n * \u6df1\u5ea6\u89e3\u6790：
                                          \n * \u6b64\u5904\u7684 while \u5faa\u73af\u4e0d\u4ec5\u89e3\u51b3\u4e86\u201c\u865a\u5047\u5524\u9192\u201d，\u8fd8\u914d\u5408\u5355\u4f8b\u6a21\u5f0f
                                          \n * \u786e\u4fdd\u4e86\u591a\u4e2a\u5b50\u7ebf\u7a0b\u5728\u7ade\u4e89\u552f\u4e00\u4efb\u52a1\u961f\u5217\u65f6\u7684\u903b\u8f91\u4e25\u5bc6\u6027\u3002
                                          \n *\/<\/span>
                                          \n while<\/span>(<\/span>IsEmptyQueue<\/span>(<\/span>)<\/span> &&<\/span> _isrunning)<\/span> \/\/ \u9632\u6b62\u4f2a\u5524\u9192<\/span>
                                          \n {<\/span>
                                          \n LOG<\/span>(<\/span>LogLevel::<\/span>DEBUG)<\/span> <<<\/span> "\u6ca1\u6709\u4efb\u52a1,\u7ebf\u7a0b\u4f11\u7720: "<\/span> <<<\/span> "|"<\/span> <<<\/span> name <<<\/span> "|"<\/span>;<\/span>
                                          \n _sleeper_cnt++<\/span>;<\/span>
                                          \n _cond.<\/span>Wait<\/span>(<\/span>_mutex)<\/span>;<\/span> \/\/ \u6838\u5fc3：\u91ca\u653e\u9501 -> \u6302\u8d77 -> \u88ab\u5524\u9192 -> \u91cd\u83b7\u9501<\/span>
                                          \n _sleeper_cnt—<\/span>;<\/span>
                                          \n LOG<\/span>(<\/span>LogLevel::<\/span>DEBUG)<\/span> <<<\/span> "\u6709\u4efb\u52a1,\u7ebf\u7a0b\u5524\u9192: "<\/span> <<<\/span> "|"<\/span> <<<\/span> name <<<\/span> "|"<\/span>;<\/span>
                                          \n }<\/span><\/p>\n

                                          \/\/ 2. \u4efb\u52a1\u961f\u5217\u4e3a\u7a7a && \u7ebf\u7a0b\u4e0d\u5904\u4e8e\u8fd0\u884c\u72b6\u6001(\u8981\u9000\u51fa) — \u5141\u8bb8\u9000\u51fa<\/span>
                                          \n if<\/span>(<\/span>IsEmptyQueue<\/span>(<\/span>)<\/span> &&<\/span> !<\/span>_isrunning)<\/span>
                                          \n {<\/span>
                                          \n LOG<\/span>(<\/span>LogLevel::<\/span>INFO)<\/span> <<<\/span> "Thread: "<\/span> <<<\/span> name <<<\/span> "quit"<\/span>;<\/span>
                                          \n break<\/span>;<\/span>
                                          \n }<\/span><\/p>\n

                                          \/\/ 3. \u4efb\u52a1\u961f\u5217\u4e0d\u4e3a\u7a7a，\u65e0\u8bba\u8fd0\u884c\u72b6\u6001\u5982\u4f55，\u90fd\u8981\u63d0\u53d6\u4efb\u52a1\u5904\u7406<\/span>
                                          \n task =<\/span> PopHelper<\/span>(<\/span>)<\/span>;<\/span>
                                          \n }<\/span>
                                          \n \/\/ \u4efb\u52a1\u6267\u884c\u653e\u5728\u9501\u5916，\u8fd9\u662f\u5b9e\u73b0\u771f\u6b63\u5e76\u53d1\u3001\u907f\u514d\u7ebf\u7a0b\u6c60\u9000\u5316\u4e3a\u5355\u7ebf\u7a0b\u7684\u5173\u952e<\/span>
                                          \n task<\/span>(<\/span>)<\/span>;<\/span>
                                          \n }<\/span>
                                          \n }<\/span><\/p>\n

                                          \/\/ \u5355\u4f8b\u6a21\u5f0f\u9632\u5fa1：\u79c1\u6709\u5316\u6784\u9020\u51fd\u6570，\u675c\u7edd\u5916\u90e8\u968f\u610f\u521b\u5efa\u5bf9\u8c61<\/span>
                                          \nprivate<\/span>:<\/span>
                                          \n ThreadPool<\/span>(<\/span>int<\/span> num =<\/span> gDefaultCnt)<\/span>:<\/span> _num<\/span>(<\/span>num)<\/span>,<\/span> _isrunning<\/span>(<\/span>false<\/span>)<\/span>,<\/span> _sleeper_cnt<\/span>(<\/span>0<\/span>)<\/span>
                                          \n {<\/span>
                                          \n for<\/span>(<\/span>int<\/span> i =<\/span> 0<\/span>;<\/span> i <<\/span> num;<\/span> i++<\/span>)<\/span>
                                          \n {<\/span>
                                          \n \/\/ \u5229\u7528lambda\u8868\u8fbe\u5f0f\u6355\u6349this\u6307\u9488,\u4e0d\u7136\u4f1a\u51fa\u73b0\u53c2\u6570\u4e0d\u5339\u914d\u7684\u95ee\u9898<\/span>
                                          \n \/\/ \u8ddfThread.hpp\u4e2d\u6709\u5173\u7cfb<\/span>
                                          \n _threads.<\/span>emplace_back<\/span>(<\/span>[<\/span>this<\/span>]<\/span>(<\/span>)<\/span>{<\/span>
                                          \n this<\/span>-><\/span>ThreadRoutine<\/span>(<\/span>)<\/span>;<\/span>
                                          \n }<\/span>)<\/span>;<\/span>
                                          \n }<\/span>
                                          \n }<\/span><\/p>\n

                                          \/\/ \u5c06\u62f7\u8d1d\u548c\u8d4b\u503c\u8bed\u53e5\u53bb\u6389<\/span>
                                          \n \/**
                                          \n * \u8865\u5145\u5efa\u8bae：
                                          \n * \u867d\u7136\u8fd9\u91cc\u7528\u4e86 = default，\u4f46\u5728\u6807\u51c6\u7684\u5355\u4f8b\u6a21\u5f0f\u4e2d，
                                          \n * \u62f7\u8d1d\u6784\u9020\u548c\u8d4b\u503c\u8fd0\u7b97\u7b26\u901a\u5e38\u5e94\u8be5\u8bbe\u4e3a = delete，\u4ee5\u9632\u6b62\u5b9e\u4f8b\u88ab\u201c\u514b\u9686\u201d\u3002
                                          \n *\/<\/span>
                                          \n ThreadPool<\/span>(<\/span>const<\/span> ThreadPool<<\/span>T><\/span>&<\/span> )<\/span> =<\/span> delete<\/span>;<\/span>
                                          \n ThreadPool<<\/span>T><\/span>&<\/span> operator<\/span> =<\/span>(<\/span>const<\/span> ThreadPool<<\/span>T><\/span>&<\/span>)<\/span> =<\/span> delete<\/span>;<\/span><\/p>\n

                                          public<\/span>:<\/span>
                                          \n \/\/ \u5b9a\u4e49\u6210\u9759\u6001\u7684：\u5168\u5c40\u552f\u4e00\u8bbf\u95ee\u70b9<\/span>
                                          \n \/**
                                          \n * @brief \u83b7\u53d6\u5355\u4f8b\u5bf9\u8c61\u7684\u9759\u6001\u63a5\u53e3
                                          \n * \u91c7\u7528\u4e86\u201c\u53cc\u68c0\u67e5\u9501 (Double-Checked Locking)\u201d\u673a\u5236\u3002
                                          \n *\/<\/span>
                                          \n static<\/span> ThreadPool<<\/span>T><\/span>*<\/span> GetInstance<\/span>(<\/span>)<\/span>
                                          \n {<\/span>
                                          \n \/\/ \u7b2c\u4e00\u5c42\u5224\u65ad：\u4e3a\u4e86\u63d0\u9ad8\u6027\u80fd\u3002\u5982\u679c\u5b9e\u4f8b\u5df2\u5b58\u5728，\u76f4\u63a5\u8fd4\u56de，\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u52a0\u9501\u5f00\u9500\u3002<\/span>
                                          \n if<\/span>(<\/span>_instance ==<\/span> nullptr<\/span>)<\/span>
                                          \n {<\/span>
                                          \n \/\/ \u52a0\u9501：\u4fdd\u8bc1\u521b\u5efa\u5b9e\u4f8b\u8fc7\u7a0b\u7684\u539f\u5b50\u6027，\u9632\u6b62\u591a\u4e2a\u7ebf\u7a0b\u540c\u65f6\u6267\u884c new \u64cd\u4f5c<\/span>
                                          \n LockGuard lockGuard<\/span>(<\/span>&<\/span>_signalton_lock)<\/span>;<\/span><\/p>\n

                                          \/\/ \u7b2c\u4e8c\u5c42\u5224\u65ad：\u4e3a\u4e86\u4fdd\u8bc1\u552f\u4e00\u6027\u3002\u5728\u83b7\u5f97\u9501\u540e\u518d\u6b21\u68c0\u67e5，<\/span>
                                          \n \/\/ \u786e\u8ba4\u5728\u6b64\u671f\u95f4\u6ca1\u6709\u5176\u4ed6\u7ebf\u7a0b\u63d0\u524d\u521b\u5efa\u4e86\u5b9e\u4f8b\u3002<\/span>
                                          \n if<\/span>(<\/span>_instance ==<\/span> nullptr<\/span>)<\/span>
                                          \n {<\/span>
                                          \n LOG<\/span>(<\/span>LogLevel::<\/span>DEBUG)<\/span> <<<\/span> "\u9996\u6b21\u521b\u5efa,\u521b\u5efa\u6210\u529f"<\/span> ;<\/span>
                                          \n _instance =<\/span> new<\/span> ThreadPool<\/span><<\/span>T><\/span><\/span><\/span>(<\/span>)<\/span>;<\/span> \/\/ \u53ea\u4f1a\u521b\u5efa\u4e00\u6b21<\/span>
                                          \n _instance-><\/span>Start<\/span>(<\/span>)<\/span>;<\/span> \/\/ \u521b\u5efa\u51fa\u6765\u8fd0\u884c\u4e00\u6b21<\/span><\/p>\n

                                          }<\/span>
                                          \n }<\/span>
                                          \n return<\/span> _instance;<\/span>
                                          \n }<\/span><\/p>\n

                                          \/\/ \u542f\u52a8\u7ebf\u7a0b\u670d\u52a1<\/span>
                                          \n void<\/span> Start<\/span>(<\/span>)<\/span>
                                          \n {<\/span>
                                          \n LockGuard lockGuard<\/span>(<\/span>&<\/span>_mutex)<\/span>;<\/span>
                                          \n if<\/span>(<\/span>_isrunning)<\/span>
                                          \n return<\/span>;<\/span>
                                          \n _isrunning =<\/span> true<\/span>;<\/span>
                                          \n for<\/span>(<\/span>auto<\/span>&<\/span> thread:<\/span> _threads)<\/span>
                                          \n thread.<\/span>start<\/span>(<\/span>)<\/span>;<\/span>
                                          \n }<\/span><\/p>\n

                                          \/\/ \u751f\u4ea7\u8005\u4e0b\u53d1\u4efb\u52a1<\/span>
                                          \n void<\/span> Enqueue<\/span>(<\/span>const<\/span> T&<\/span> task)<\/span>
                                          \n {<\/span>
                                          \n LockGuard lockGuard<\/span>(<\/span>&<\/span>_mutex)<\/span>;<\/span>
                                          \n if<\/span>(<\/span>!<\/span>_isrunning)<\/span> \/\/ \u5982\u679c\u5f53\u524d\u5904\u4e8e\u505c\u6b62\u72b6\u6001,\u7981\u6b62\u7ee7\u7eed\u52a0\u4efb\u52a1<\/span>
                                          \n return<\/span>;<\/span>
                                          \n _queue.<\/span>push<\/span>(<\/span>task)<\/span>;<\/span><\/p>\n

                                          \/\/ \u5524\u9192\u4e00\u4e2a\u6765\u7ebf\u7a0b\u6765\u6267\u884c\u4efb\u52a1<\/span>
                                          \n \/\/ \u4f18\u5316\u7b56\u7565：\u53ea\u6709\u5b58\u5728\u6b63\u5728\u7761\u89c9\u7684\u5de5\u4eba\u624d\u53d1\u901a\u77e5<\/span>
                                          \n if<\/span>(<\/span>_sleeper_cnt ><\/span> 0<\/span>)<\/span>
                                          \n _cond.<\/span>NotifyOne<\/span>(<\/span>)<\/span>;<\/span>
                                          \n }<\/span><\/p>\n

                                          \/\/ \u4f18\u96c5\u505c\u6b62\u7ebf\u7a0b\u6c60<\/span>
                                          \n void<\/span> Stop<\/span>(<\/span>)<\/span>
                                          \n {<\/span>
                                          \n LockGuard lockGuard<\/span>(<\/span>&<\/span>_mutex)<\/span>;<\/span>
                                          \n if<\/span>(<\/span>_isrunning)<\/span>
                                          \n {<\/span>
                                          \n LOG<\/span>(<\/span>LogLevel::<\/span>DEBUG)<\/span> <<<\/span> "\u5173\u95ed\u7ebf\u7a0b\u6c60"<\/span>;<\/span>
                                          \n _isrunning =<\/span> false<\/span>;<\/span> \/\/ \u6539\u53d8\u72b6\u6001，\u4f5c\u4e3a ThreadRoutine \u9000\u51fa\u7684\u89e6\u53d1\u4fe1\u53f7<\/span><\/p>\n

                                          \/\/ \u5524\u9192\u6240\u6709\u7684\u53bb\u6267\u884c, \u4fdd\u8bc1\u6240\u6709\u7ebf\u7a0b\u90fd\u80fd\u610f\u8bc6\u5230\u72b6\u6001\u6539\u53d8\u5e76\u6b63\u786e break<\/span>
                                          \n if<\/span>(<\/span>_sleeper_cnt ><\/span> 0<\/span>)<\/span>
                                          \n _cond.<\/span>NotifyAll<\/span>(<\/span>)<\/span>;<\/span>
                                          \n }<\/span>
                                          \n }<\/span><\/p>\n

                                          \/\/ \u963b\u585e\u5f0f\u8d44\u6e90\u56de\u6536<\/span>
                                          \n void<\/span> Wait<\/span>(<\/span>)<\/span>
                                          \n {<\/span>
                                          \n \/\/ join \u64cd\u4f5c\u672c\u8eab\u963b\u585e，\u4e14\u4e0d\u6d89\u53ca\u4e34\u754c\u8d44\u6e90\u4fee\u6539，\u6545\u65e0\u9700\u52a0\u9501<\/span>
                                          \n for<\/span>(<\/span>auto<\/span>&<\/span> thread:<\/span> _threads)<\/span>
                                          \n thread.<\/span>join<\/span>(<\/span>)<\/span>;<\/span>
                                          \n }<\/span><\/p>\n

                                          ~<\/span>ThreadPool<\/span>(<\/span>)<\/span>
                                          \n {<\/span>}<\/span><\/p>\n

                                          private<\/span>:<\/span>
                                          \n \/\/ \u7ebf\u7a0b\u6c60\u7ba1\u7406\u7ec4\u4ef6<\/span>
                                          \n std::<\/span>vector<<\/span>Thread><\/span> _threads;<\/span> \/\/ \u7ba1\u7406\u7ebf\u7a0b\u5bf9\u8c61\u7684\u5bb9\u5668<\/span>
                                          \n int<\/span> _num;<\/span> \/\/ \u7ebf\u7a0b\u6c60\u89c4\u6a21<\/span>
                                          \n bool<\/span> _isrunning;<\/span> \/\/ \u5168\u5c40\u751f\u547d\u5468\u671f\u5f00\u5173<\/span>
                                          \n int<\/span> _sleeper_cnt;<\/span> \/\/ \u8bb0\u5f55\u5f53\u524d\u7a7a\u95f2\u5de5\u4eba\u7684\u6570\u91cf<\/span><\/p>\n

                                          std::<\/span>queue<<\/span>T><\/span> _queue;<\/span> \/\/ \u5171\u4eab\u4efb\u52a1\u961f\u5217<\/span>
                                          \n Mutex _mutex;<\/span> \/\/ \u4fdd\u62a4\u4efb\u52a1\u961f\u5217\u7684\u4e92\u65a5\u9501<\/span>
                                          \n Cond _cond;<\/span> \/\/ \u534f\u8c03\u751f\u4ea7\/\u6d88\u8d39\u8282\u594f\u7684\u6761\u4ef6\u53d8\u91cf<\/span><\/p>\n

                                          \/\/ \u5355\u4f8b\u6a21\u5f0f\u9759\u6001\u6210\u5458<\/span>
                                          \n static<\/span> ThreadPool<<\/span>T><\/span> *<\/span>_instance;<\/span> \/\/ \u5168\u5c40\u552f\u4e00\u5b9e\u4f8b\u6307\u9488<\/span>
                                          \n static<\/span> Mutex _signalton_lock;<\/span> \/\/ \u4fdd\u62a4\u5355\u4f8b\u5b9e\u4f8b\u5316\u7684\u9759\u6001\u9501<\/span>
                                          \n}<\/span>;<\/span><\/p>\n

                                          \/\/ \u9759\u6001\u6210\u5458\u53d8\u91cf\u5728\u7c7b\u5916\u521d\u59cb\u5316：<\/span>
                                          \n\/\/ \u9759\u6001\u6307\u9488\u5728 main \u8fd0\u884c\u524d\u521d\u59cb\u5316\u4e3a null，\u4fdd\u8bc1 GetInstance \u7684\u903b\u8f91\u8d77\u70b9\u6b63\u786e\u3002<\/span>
                                          \ntemplate<\/span><<\/span>typename<\/span> T<\/span>><\/span>
                                          \nThreadPool<<\/span>T><\/span>*<\/span> ThreadPool<<\/span>T><\/span>::<\/span>_instance =<\/span> nullptr<\/span>;<\/span><\/p>\n

                                          template<\/span> <<\/span>typename<\/span> T<\/span>><\/span>
                                          \nMutex ThreadPool<<\/span>T><\/span>::<\/span>_signalton_lock;<\/span><\/p>\n

                                          #<\/span>endif<\/span><\/span><\/p>\n

                                          4.3 \u57fa\u4e8e\u7ebf\u7a0b\u6c60\u7684 TCP Echo \u670d\u52a1\u5668\u5b9e\u73b0<\/h3>\n

                                          Echo \u670d\u52a1\u5668\u662f\u7f51\u7edc\u7f16\u7a0b\u7684\u7ecf\u5178\u6848\u4f8b，\u5ba2\u6237\u7aef\u53d1\u9001\u4ec0\u4e48\u5185\u5bb9，\u670d\u52a1\u7aef\u5c31\u539f\u6837\u8fd4\u56de，\u975e\u5e38\u9002\u5408\u9a8c\u8bc1\u7ebf\u7a0b\u6c60\u7684\u9ad8\u5e76\u53d1\u5904\u7406\u80fd\u529b\u3002\u6ce8\u610f：\u8fd9\u91cc\u6211\u4eec\u91c7\u7528\u77ed\u8fde\u63a5\u8bbe\u8ba1，\u9002\u914d\u7ebf\u7a0b\u6c60\u7684\u9002\u7528\u573a\u666f\u3002<\/p>\n

                                          \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

                                          4.3.1 \u670d\u52a1\u5668\u6838\u5fc3\u5b9e\u73b0（TcpEchoServer.hpp）<\/h4>\n

                                          #<\/span>ifndef<\/span> __TCP__ECHOSERVER__HPP<\/span><\/span>
                                          \n#<\/span>define<\/span> __TCP__ECHOSERVER__HPP<\/span><\/span><\/p>\n

                                          #<\/span>include<\/span> <csignal><\/span><\/span>
                                          \n#<\/span>include<\/span> <cstdint><\/span><\/span>
                                          \n#<\/span>include<\/span> <pthread.h><\/span><\/span>
                                          \n#<\/span>include<\/span> <string><\/span><\/span>
                                          \n#<\/span>include<\/span> <string.h><\/span><\/span>
                                          \n#<\/span>include<\/span> <unistd.h><\/span><\/span>
                                          \n#<\/span>include<\/span> <sys\/wait.h><\/span><\/span>
                                          \n#<\/span>include<\/span> <functional><\/span><\/span><\/p>\n

                                          #<\/span>include<\/span> <sys\/socket.h><\/span><\/span>
                                          \n#<\/span>include<\/span> <netinet\/in.h><\/span><\/span>
                                          \n#<\/span>include<\/span> <arpa\/inet.h><\/span><\/span>
                                          \n#<\/span>include<\/span> "InetAddr.hpp"<\/span><\/span>
                                          \n#<\/span>include<\/span> "Logger.hpp"<\/span><\/span>
                                          \n#<\/span>include<\/span> "ThreadPool.hpp"<\/span><\/span>
                                          \nusing<\/span> namespace<\/span> LogModule;<\/span><\/p>\n

                                          static<\/span> const<\/span> uint16_t<\/span> gdefaultport =<\/span> 8080<\/span>;<\/span>
                                          \nstatic<\/span> const<\/span> int<\/span> gbacklog =<\/span> 32<\/span>;<\/span><\/p>\n

                                          \/\/ \u5b9a\u4e49\u4e00\u4e2a\u4efb\u52a1<\/span>
                                          \n\/\/ \u67b6\u6784\u89e3\u6790：\u5229\u7528 C++11 \u7684 std::function \u5c06\u4e1a\u52a1\u903b\u8f91\u7edf\u4e00\u5c01\u88c5\u6210\u65e0\u53c2\u65e0\u8fd4\u56de\u503c\u7684\u53ef\u8c03\u7528\u5bf9\u8c61\u3002<\/span>
                                          \n\/\/ \u8fd9\u6837\u7ebf\u7a0b\u6c60\u5185\u90e8\u7684\u7ebf\u7a0b\u53ea\u9700\u65e0\u8111\u6267\u884c task_t()，\u5b9e\u73b0\u4e86\u201c\u4efb\u52a1\u6d3e\u53d1\u201d\u4e0e\u201c\u4efb\u52a1\u6267\u884c\u201d\u7684\u5b8c\u5168\u89e3\u8026\u3002<\/span>
                                          \nusing<\/span> task_t =<\/span> std::<\/span>function<<\/span>void<\/span>(<\/span>)<\/span>><\/span>;<\/span><\/p>\n

                                          class<\/span> TcpEchoServer<\/span>
                                          \n{<\/span>
                                          \nprivate<\/span>:<\/span>
                                          \n \/\/ sockfd: \u65e2\u53ef\u4ee5\u652f\u6301\u8bfb，\u53c8\u53ef\u4ee5\u652f\u6301\u5199, TCP socket\u4e5f\u662f\u5168\u53cc\u5de5\u7684.<\/span>
                                          \n \/\/ \u8fd9\u662f\u7531\u7ebf\u7a0b\u6c60\u4e2d\u67d0\u4e2a\u5177\u4f53\u7684\u5de5\u4f5c\u7ebf\u7a0b（Worker Thread）\u6765\u6267\u884c\u7684\u51fd\u6570<\/span>
                                          \n void<\/span> Service<\/span>(<\/span>int<\/span> sockfd,<\/span> InetAddr client)<\/span>
                                          \n {<\/span>
                                          \n char<\/span> name[<\/span>128<\/span>]<\/span>;<\/span>
                                          \n \/\/ \u83b7\u53d6\u5f53\u524d\u6267\u884c\u6b64\u4efb\u52a1\u7684\u7ebf\u7a0b\u540d\u79f0（\u5982 "Worker-1", "Worker-2" \u7b49）<\/span>
                                          \n \/\/ \u4f5c\u7528：\u5728\u65e5\u5fd7\u4e2d\u6253\u5370\u51fa\u7ebf\u7a0b\u540d，\u65b9\u4fbf\u8ffd\u8e2a\u591a\u7ebf\u7a0b\u5e76\u53d1\u72b6\u6001\u4e0b，\u662f\u54ea\u4e2a\u5e95\u5c42\u7ebf\u7a0b\u670d\u52a1\u4e86\u54ea\u4e2a\u5ba2\u6237\u7aef\u3002<\/span>
                                          \n pthread_getname_np<\/span>(<\/span>pthread_self<\/span>(<\/span>)<\/span>,<\/span> name,<\/span> sizeof<\/span>(<\/span>name)<\/span>)<\/span>;<\/span><\/p>\n

                                          \/\/ \u957f\u8fde\u63a5\u670d\u52a1<\/span>
                                          \n \/\/ \u6211\u4eec\u7684\u7ebf\u7a0b\u6c60\u7248\u672c\u4e0d\u9002\u5408\u957f\u8fde\u63a5\u670d\u52a1，\u8fd9\u91cc\u6539\u6210\u77ed\u8fde\u63a5<\/span>
                                          \n \/\/ \u6838\u5fc3\u75db\u70b9：\u5982\u679c\u7ee7\u7eed\u4fdd\u7559\u6b7b\u5faa\u73af\u7684\u957f\u8fde\u63a5，\u5f53\u5e76\u53d1\u8fde\u63a5\u6570\u8d85\u8fc7\u7ebf\u7a0b\u6c60\u5bb9\u91cf（\u5982 5 \u4e2a）\u65f6，<\/span>
                                          \n \/\/ \u6240\u6709\u7ebf\u7a0b\u90fd\u4f1a\u5361\u5728\u5faa\u73af\u91cc\u51fa\u4e0d\u6765，\u5bfc\u81f4\u7b2c 6 \u4e2a\u53ca\u4ee5\u540e\u7684\u5ba2\u6237\u7aef\u6c38\u8fdc\u5f97\u4e0d\u5230\u54cd\u5e94（\u5373\u88ab\u201c\u997f\u6b7b\u201d）\u3002<\/span><\/p>\n

                                          \/\/ \u77ed\u8fde\u63a5\u670d\u52a1：\u5904\u7406\u5b8c\u4e00\u6b21\u8bfb\u5199\u8bf7\u6c42\u540e，\u7acb\u523b\u7ed3\u675f\u51fd\u6570，\u91ca\u653e\u5f53\u524d\u7ebf\u7a0b\u5f52\u8fd8\u7ed9\u7ebf\u7a0b\u6c60\u3002<\/span>
                                          \n \/\/ while (true) <\/span>
                                          \n \/\/ {<\/span>
                                          \n char<\/span> inbuffer[<\/span>1024<\/span>]<\/span>;<\/span><\/p>\n

                                          \/\/ 1. \u8bfb\u53d6<\/span>
                                          \n \/\/ TCP \u9762\u5411\u5b57\u8282\u6d41，\u6b64\u65f6\u53ea\u8bfb\u53d6\u4e00\u6b21\u8bf7\u6c42\u5305<\/span>
                                          \n int<\/span> n =<\/span> read<\/span>(<\/span>sockfd,<\/span> inbuffer,<\/span> sizeof<\/span>(<\/span>inbuffer)<\/span> –<\/span> 1<\/span>)<\/span>;<\/span>
                                          \n if<\/span> (<\/span>n ><\/span> 0<\/span>)<\/span> {<\/span>
                                          \n inbuffer[<\/span>n]<\/span> =<\/span> 0<\/span>;<\/span> \/\/ \u624b\u52a8\u8f6c\u6362\u4e3a C \u98ce\u683c\u5b57\u7b26\u4e32，\u9632\u6b62\u6253\u5370\u8d8a\u754c\u4e71\u7801<\/span>
                                          \n LOG<\/span>(<\/span>LogLevel::<\/span>INFO)<\/span> <<<\/span> name <<<\/span> " : "<\/span> <<<\/span> client.<\/span>StringAddress<\/span>(<\/span>)<\/span> <<<\/span> " say# "<\/span> <<<\/span> inbuffer;<\/span>
                                          \n }<\/span> else<\/span> if<\/span> (<\/span>n ==<\/span> 0<\/span>)<\/span> {<\/span>
                                          \n LOG<\/span>(<\/span>LogLevel::<\/span>INFO)<\/span> <<<\/span> client.<\/span>StringAddress<\/span>(<\/span>)<\/span>
                                          \n <<<\/span> " close sockfd: "<\/span> <<<\/span> sockfd <<<\/span> ", me too!"<\/span>;<\/span>
                                          \n }<\/span> else<\/span> {<\/span>
                                          \n LOG<\/span>(<\/span>LogLevel::<\/span>ERROR)<\/span> <<<\/span> "read socket error"<\/span>;<\/span>
                                          \n }<\/span><\/p>\n

                                          \/\/ \u52a0\u5de5\u5904\u7406\u6570\u636e<\/span>
                                          \n std::<\/span>string echo_string =<\/span> "server echo# "<\/span>;<\/span>
                                          \n echo_string +=<\/span> inbuffer;<\/span><\/p>\n

                                          \/\/ 2. \u5199\u56de\u6570\u636e<\/span>
                                          \n int<\/span> m =<\/span> write<\/span>(<\/span>sockfd,<\/span> echo_string.<\/span>c_str<\/span>(<\/span>)<\/span>,<\/span> echo_string.<\/span>size<\/span>(<\/span>)<\/span>)<\/span>;<\/span>
                                          \n if<\/span> (<\/span>m <<\/span> 0<\/span>)<\/span> {<\/span>
                                          \n LOG<\/span>(<\/span>LogLevel::<\/span>ERROR)<\/span> <<<\/span> "write socket error"<\/span>;<\/span>
                                          \n }<\/span>
                                          \n \/\/ }<\/span><\/p>\n

                                          \/\/ \u6781\u5176\u91cd\u8981：\u4f5c\u4e3a\u77ed\u670d\u52a1，\u5904\u7406\u5b8c\u4e00\u6b21\u4e1a\u52a1\u540e\u5fc5\u987b\u4e3b\u52a8\u5173\u95ed\u5957\u63a5\u5b57 (\u56db\u6b21\u6325\u624b)<\/span>
                                          \n \/\/ \u4e00\u65b9\u9762\u91ca\u653e\u4e86 Linux \u7cfb\u7edf\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u8d44\u6e90，\u53e6\u4e00\u65b9\u9762\u4e5f\u544a\u77e5\u5ba2\u6237\u7aef\u672c\u6b21\u670d\u52a1\u5df2\u7ed3\u675f\u3002<\/span>
                                          \n close<\/span>(<\/span>sockfd)<\/span>;<\/span>
                                          \n }<\/span>
                                          \npublic<\/span>:<\/span>
                                          \n TcpEchoServer<\/span>(<\/span>uint16_t<\/span> port =<\/span> gdefaultport)<\/span>:<\/span> _port<\/span>(<\/span>port)<\/span>,<\/span> _listensockfd<\/span>(<\/span>–<\/span>1<\/span>)<\/span>
                                          \n {<\/span>}<\/span>
                                          \n void<\/span> Init<\/span>(<\/span>)<\/span>
                                          \n {<\/span>
                                          \n \/\/ 1. \u521b\u5efa\u5957\u63a5\u5b57<\/span>
                                          \n \/\/ AF_INET: IPv4 \u7f51\u7edc\u534f\u8bae; SOCK_STREAM: TCP \u5b57\u8282\u6d41\u4f20\u8f93\u534f\u8bae<\/span>
                                          \n _listensockfd =<\/span> socket<\/span>(<\/span>AF_INET,<\/span> SOCK_STREAM,<\/span> 0<\/span>)<\/span>;<\/span> \/\/ \u8bbe\u7f6e\u62100\u5c31\u53ef\u4ee5\u4e86<\/span>
                                          \n if<\/span>(<\/span>_listensockfd <<\/span> 0<\/span>)<\/span>
                                          \n {<\/span>
                                          \n LOG<\/span>(<\/span>LogLevel::<\/span>FATAL)<\/span> <<<\/span> "create socket error: "<\/span> <<<\/span> _listensockfd;<\/span>
                                          \n exit<\/span>(<\/span>2<\/span>)<\/span>;<\/span>
                                          \n }<\/span>
                                          \n LOG<\/span>(<\/span>LogLevel::<\/span>INFO)<\/span> <<<\/span> "create socket success: "<\/span> <<<\/span> _listensockfd;<\/span><\/p>\n

                                          \/\/ 2.bind<\/span>
                                          \n \/\/ \u6211\u4eec\u8fd9\u91cc\u662f\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528\u6211\u4eec\u7684InetAddr\u7684,\u4f46\u662f\u6211\u4eec\u540e\u9762\u518d\u7528<\/span>
                                          \n \/\/ \u7ed1\u5b9a\u672c\u673a\u7684 IP \u5730\u5740\u548c\u6307\u5b9a\u7684\u7aef\u53e3\u53f7，\u4e3a\u670d\u52a1\u5668\u786e\u5b9a\u552f\u4e00\u7684\u7f51\u7edc\u8eab\u4efd<\/span>
                                          \n struct<\/span> sockaddr_in<\/span> local;<\/span>
                                          \n socklen_t len =<\/span> sizeof<\/span>(<\/span>local)<\/span>;<\/span>
                                          \n memset<\/span>(<\/span>&<\/span>local,<\/span> 0<\/span>,<\/span> len)<\/span>;<\/span>
                                          \n local.<\/span>sin_family =<\/span> AF_INET;<\/span>
                                          \n local.<\/span>sin_port =<\/span> htons<\/span>(<\/span>_port)<\/span>;<\/span> \/\/ \u4e3b\u673a\u5b57\u8282\u5e8f -> \u7f51\u7edc\u5b57\u8282\u5e8f (\u5904\u7406\u7aef\u53e3)<\/span>
                                          \n local.<\/span>sin_addr.<\/span>s_addr =<\/span> htonl<\/span>(<\/span>INADDR_ANY)<\/span>;<\/span> \/\/ INADDR_ANY: \u76d1\u542c\u672c\u673a\u6240\u6709\u7f51\u5361\u63a5\u6536\u5230\u7684\u6570\u636e<\/span><\/p>\n

                                          int<\/span> n =<\/span> bind<\/span>(<\/span>_listensockfd,<\/span> (<\/span>struct<\/span> sockaddr<\/span>*<\/span>)<\/span>&<\/span>local,<\/span> len)<\/span>;<\/span>
                                          \n if<\/span>(<\/span>n <<\/span> 0<\/span>)<\/span>
                                          \n {<\/span>
                                          \n LOG<\/span>(<\/span>LogLevel::<\/span>FATAL)<\/span> <<<\/span> "bind error: "<\/span> <<<\/span> _listensockfd;<\/span>
                                          \n exit<\/span>(<\/span>3<\/span>)<\/span>;<\/span> \/\/ \u5e38\u89c1\u9519\u8bef\u539f\u56e0：\u8be5\u7aef\u53e3\u5df2\u88ab\u5176\u4ed6\u8fdb\u7a0b\u5360\u7528<\/span>
                                          \n }<\/span>
                                          \n LOG<\/span>(<\/span>LogLevel::<\/span>INFO)<\/span> <<<\/span> "bind success: "<\/span> <<<\/span> _listensockfd;<\/span><\/p>\n

                                          \/\/ 3. \u8bbe\u7f6e\u6210\u76d1\u542c<\/span>
                                          \n \/\/ \u5c06\u5957\u63a5\u5b57\u4ece\u4e3b\u52a8\u72b6\u6001\u8f6c\u4e3a\u88ab\u52a8\u72b6\u6001，\u5141\u8bb8\u5e95\u5c42\u64cd\u4f5c\u7cfb\u7edf\u63a5\u6536\u4f20\u5165\u7684\u8fde\u63a5\u8bf7\u6c42\u5e76\u653e\u5165\u5168\u8fde\u63a5\u961f\u5217<\/span>
                                          \n n =<\/span> listen<\/span>(<\/span>_listensockfd,<\/span> gbacklog)<\/span>;<\/span>
                                          \n if<\/span>(<\/span>n <<\/span> 0<\/span>)<\/span>
                                          \n {<\/span>
                                          \n LOG<\/span>(<\/span>LogLevel::<\/span>FATAL)<\/span> <<<\/span> "listen error: "<\/span> <<<\/span> _listensockfd;<\/span>
                                          \n exit<\/span>(<\/span>3<\/span>)<\/span>;<\/span>
                                          \n }<\/span>
                                          \n LOG<\/span>(<\/span>LogLevel::<\/span>INFO)<\/span> <<<\/span> "listen success: "<\/span> <<<\/span> _listensockfd;<\/span>
                                          \n }<\/span>
                                          \n void<\/span> Start<\/span>(<\/span>)<\/span>
                                          \n {<\/span>
                                          \n \/\/ \u591a\u8fdb\u7a0b\u7248\u672c\u7b49\u5f85\u7684\u6700\u4f73\u5b9e\u8df5<\/span>
                                          \n \/\/ signal(SIGCHLD, SIG_IGN); \/\/ \u5728\u5f53\u524d\u57fa\u4e8e\u7ebf\u7a0b\u6c60\u7684\u67b6\u6784\u4e2d，\u6211\u4eec\u4e0d\u521b\u5efa\u5b50\u8fdb\u7a0b，\u6240\u4ee5\u4e0d\u9700\u8981\u5904\u7406\u6b64\u4fe1\u53f7<\/span><\/p>\n

                                          \/\/ \u4e3b\u7ebf\u7a0b (Main Thread) \u7684\u804c\u8d23\u53d1\u751f\u4e86\u8f6c\u53d8：<\/span>
                                          \n \/\/ \u5b83\u53d8\u6210\u4e86\u7eaf\u7cb9\u7684\u201c\u4efb\u52a1\u751f\u4ea7\u8005\u201d，\u53ea\u8d1f\u8d23\u63a5\u5f85\u65b0\u5ba2\u4eba，\u5177\u4f53\u7684\u670d\u52a1\u7ec6\u8282\u7edf\u7edf\u4ea4\u7ed9\u7ebf\u7a0b\u6c60\u5904\u7406\u3002<\/span>
                                          \n while<\/span>(<\/span>true<\/span>)<\/span>
                                          \n {<\/span>
                                          \n struct<\/span> sockaddr_in<\/span> clientaddr;<\/span>
                                          \n socklen_t len =<\/span> sizeof<\/span>(<\/span>clientaddr)<\/span>;<\/span>
                                          \n \/\/ accept \u5c5e\u4e8e\u963b\u585e\u5f0f\u8c03\u7528，\u4ece\u5e95\u5c42\u7684\u5168\u8fde\u63a5\u961f\u5217\u4e2d\u53d6\u51fa\u4e00\u4e2a\u5efa\u7acb\u597d\u4e09\u6b21\u63e1\u624b\u7684\u8fde\u63a5<\/span>
                                          \n int<\/span> sockfd =<\/span> accept<\/span>(<\/span>_listensockfd,<\/span> (<\/span>struct<\/span> sockaddr<\/span> *<\/span>)<\/span>&<\/span>clientaddr,<\/span> &<\/span>len)<\/span>;<\/span>
                                          \n if<\/span> (<\/span>sockfd <<\/span> 0<\/span>)<\/span>
                                          \n {<\/span>
                                          \n LOG<\/span>(<\/span>LogLevel::<\/span>WARNING)<\/span> <<<\/span> "accept error"<\/span>;<\/span>
                                          \n continue<\/span>;<\/span>
                                          \n }<\/span>
                                          \n \/\/ \u7f51\u7edc\u8f6c\u4e3b\u673a，\u65b9\u4fbf\u540e\u7eed\u6253\u5370\u53cb\u597d\u7684\u5ba2\u6237\u7aef IP \u548c Port<\/span>
                                          \n InetAddr clientaddress<\/span>(<\/span>clientaddr)<\/span>;<\/span>
                                          \n LOG<\/span>(<\/span>LogLevel::<\/span>INFO)<\/span> <<<\/span> "get a new link: "<\/span> <<<\/span> clientaddress.<\/span>StringAddress<\/span>(<\/span>)<\/span> <<<\/span> " sockfd: "<\/span> <<<\/span> sockfd;<\/span><\/p>\n

                                          \/\/ \u5904\u7406\u8fde\u63a5, \u8fdb\u884cIO\u901a\u4fe1<\/span>
                                          \n \/\/ \u7ebf\u7a0b\u6c60\u7248\u672c：\u5c06\u4efb\u52a1\u5c01\u88c5\u4e3a Lambda \u8868\u8fbe\u5f0f\u5e76\u63a8\u5165\u7ebf\u7a0b\u6c60\u7684\u4efb\u52a1\u961f\u5217\u4e2d<\/span>
                                          \n \/\/ \u6613\u9519\u70b9\u5206\u6790：\u8fd9\u91cc\u3010\u5fc5\u987b\u3011\u4f7f\u7528\u503c\u6355\u83b7 [sockfd, clientaddress, this]！<\/span>
                                          \n \/\/ \u5982\u679c\u4f7f\u7528\u5f15\u7528\u6355\u83b7 [&]，\u5f53\u4e3b\u7ebf\u7a0b\u7acb\u523b\u8fdb\u5165\u4e0b\u4e00\u6b21 while \u5faa\u73af\u5e76\u91cd\u65b0 accept \u65f6，<\/span>
                                          \n \/\/ \u5c40\u90e8\u7684 sockfd \u548c clientaddr \u4f1a\u88ab\u8986\u76d6\u6216\u9500\u6bc1，\u5bfc\u81f4\u7ebf\u7a0b\u6c60\u91cc\u5ef6\u540e\u6267\u884c\u7684\u4efb\u52a1\u62ff\u5230\u91ce\u6570\u636e\u3002<\/span>
                                          \n ThreadPool<\/span><<\/span>task_t><\/span>::<\/span>GetInstance<\/span>(<\/span>)<\/span>-><\/span>Enqueue<\/span>(<\/span>[<\/span>sockfd,<\/span> clientaddress,<\/span> this<\/span>]<\/span>(<\/span>)<\/span>{<\/span>
                                          \n \/\/ \u901a\u8fc7 this \u6307\u9488\u8c03\u7528\u5f53\u524d\u7c7b\u7684\u79c1\u6709\u6210\u5458\u51fd\u6570 Service<\/span>
                                          \n Service<\/span>(<\/span>sockfd,<\/span> clientaddress)<\/span>;<\/span>
                                          \n }<\/span>)<\/span>;<\/span>
                                          \n }<\/span>
                                          \n }<\/span>
                                          \n ~<\/span>TcpEchoServer<\/span>(<\/span>)<\/span>{<\/span>}<\/span>
                                          \nprivate<\/span>:<\/span>
                                          \n uint16_t<\/span> _port;<\/span>
                                          \n int<\/span> _listensockfd;<\/span>
                                          \n}<\/span>;<\/span>
                                          \n#<\/span>endif<\/span><\/span><\/p>\n

                                          \u6e90\u7801\u6838\u5fc3\u89e3\u8bfb：<\/p>\n

                                            \n
                                          • \u77ed\u8fde\u63a5\u9002\u914d：Service\u51fd\u6570\u4e2d，\u4e00\u6b21\u8bfb\u5199\u5b8c\u6210\u540e\u7acb\u5373\u5173\u95ed\u5957\u63a5\u5b57，\u4efb\u52a1\u6267\u884c\u5b8c\u6bd5\u540e\u7ebf\u7a0b\u7acb\u5373\u5f52\u8fd8\u5230\u7ebf\u7a0b\u6c60，\u53ef\u5904\u7406\u4e0b\u4e00\u4e2a\u4efb\u52a1，\u5b8c\u7f8e\u9002\u914d\u7ebf\u7a0b\u6c60\u6a21\u578b\u3002<\/li>\n
                                          • \u4efb\u52a1\u5c01\u88c5：\u901a\u8fc7 lambda \u8868\u8fbe\u5f0f\u6355\u83b7\u8fde\u63a5\u4fe1\u606f，\u5c06Service\u8c03\u7528\u5c01\u88c5\u6210\u4efb\u52a1，\u901a\u8fc7Enqueue\u653e\u5165\u7ebf\u7a0b\u6c60\u7684\u4efb\u52a1\u961f\u5217，\u7531\u7ebf\u7a0b\u6c60\u8c03\u5ea6\u6267\u884c\u3002<\/li>\n
                                          • \u5355\u4f8b\u7ebf\u7a0b\u6c60\u7684\u4f7f\u7528：\u901a\u8fc7ThreadPool<task_t>::GetInstance()\u83b7\u53d6\u5168\u5c40\u552f\u4e00\u7684\u7ebf\u7a0b\u6c60\u5b9e\u4f8b，\u65e0\u9700\u624b\u52a8\u521b\u5efa\u4e0e\u7ba1\u7406，\u4f7f\u7528\u6781\u7b80\u3002<\/li>\n<\/ul>\n

                                            4.3.2 \u670d\u52a1\u5668\u542f\u52a8\u5165\u53e3<\/h4>\n

                                            \u5ba2\u6237\u7aef\u4ee3\u7801\u8ddf\u4e0a\u9762\u4e00\u6837 \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

                                            \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

                                            4.4 \u7ebf\u7a0b\u6c60\u7248\u672c\u7684\u6838\u5fc3\u4f18\u52bf<\/h3>\n
                                              \n
                                            • \u6027\u80fd\u63d0\u5347：\u907f\u514d\u4e86\u9891\u7e41\u521b\u5efa\u9500\u6bc1\u7ebf\u7a0b\u7684\u5f00\u9500，\u7ebf\u7a0b\u590d\u7528\u7387\u6781\u9ad8，\u5728\u77ed\u8fde\u63a5\u9ad8\u5e76\u53d1\u573a\u666f\u4e0b，\u6027\u80fd\u8fdc\u8d85\u6bcf\u8fde\u63a5\u6bcf\u7ebf\u7a0b\u7684\u591a\u7ebf\u7a0b\u6a21\u578b\u3002<\/li>\n
                                            • \u8d44\u6e90\u53ef\u63a7：\u7ebf\u7a0b\u6c60\u7684\u6700\u5927\u7ebf\u7a0b\u6570\u56fa\u5b9a，\u4e0d\u4f1a\u56e0\u4e3a\u5e76\u53d1\u8fde\u63a5\u6570\u8fc7\u9ad8\u5bfc\u81f4\u7cfb\u7edf\u7ebf\u7a0b\u6570\u91cf\u7206\u70b8，\u907f\u514d\u7cfb\u7edf\u8c03\u5ea6\u538b\u529b\u8fc7\u5927\u5bfc\u81f4\u7684\u670d\u52a1\u5361\u987f\u3002<\/li>\n
                                            • \u6d41\u91cf\u7f13\u51b2：\u4efb\u52a1\u961f\u5217\u53ef\u4ee5\u7f13\u51b2\u7a81\u53d1\u7684\u5927\u91cf\u8fde\u63a5\u8bf7\u6c42，\u907f\u514d\u7cfb\u7edf\u77ac\u95f4\u88ab\u6253\u6ee1，\u63d0\u5347\u670d\u52a1\u7684\u7a33\u5b9a\u6027\u3002<\/li>\n
                                            • \u4ee3\u7801\u89e3\u8026：\u7ebf\u7a0b\u6c60\u5c06\u4efb\u52a1\u7684\u63d0\u4ea4\u4e0e\u6267\u884c\u5b8c\u5168\u89e3\u8026，\u670d\u52a1\u5668\u4e3b\u5faa\u73af\u4ec5\u9700\u5173\u6ce8\u8fde\u63a5\u63a5\u6536，\u65e0\u9700\u5173\u5fc3\u4efb\u52a1\u7684\u6267\u884c\u8c03\u5ea6，\u4ee3\u7801\u7ed3\u6784\u66f4\u6e05\u6670\u3002<\/li>\n<\/ul>\n
                                              \n

                                              \u4e94. \u6838\u5fc3\u9762\u8bd5\u8003\u70b9\u4e0e\u5b9e\u6218\u8e29\u5751\u6307\u5357<\/h2>\n

                                              5.1 \u9ad8\u9891\u9762\u8bd5\u8003\u70b9<\/h3>\n
                                                \n
                                              • \n

                                                TCP \u670d\u52a1\u5668\u4e2d，listen \u51fd\u6570\u7684\u7b2c\u4e8c\u4e2a\u53c2\u6570 backlog \u7684\u542b\u4e49\u662f\u4ec0\u4e48？<\/p>\n

                                                  \n
                                                • backlog \u5b9a\u4e49\u4e86\u5185\u6838\u4e2d\u5df2\u5b8c\u6210\u4e09\u6b21\u63e1\u624b\u7684\u8fde\u63a5\u961f\u5217\u7684\u6700\u5927\u957f\u5ea6，\u5f53\u5ba2\u6237\u7aef\u7684\u4e09\u6b21\u63e1\u624b\u5b8c\u6210\u540e，\u4f1a\u88ab\u653e\u5165\u8fd9\u4e2a\u961f\u5217，\u7b49\u5f85\u670d\u52a1\u5668\u8c03\u7528 accept \u53d6\u51fa\u3002\u5982\u679c\u961f\u5217\u6ee1\u4e86，\u65b0\u7684\u5ba2\u6237\u7aef\u8fde\u63a5\u8bf7\u6c42\u4f1a\u88ab\u5185\u6838\u62d2\u7edd\u3002<\/li>\n<\/ul>\n<\/li>\n
                                                • \n

                                                  \u4e3a\u4ec0\u4e48\u591a\u7ebf\u7a0b\u7248\u672c\u4e2d，\u7ebf\u7a0b\u5165\u53e3\u51fd\u6570\u5fc5\u987b\u662f\u9759\u6001\u6210\u5458\u51fd\u6570？<\/p>\n

                                                    \n
                                                  • \u539f\u751fpthread_create\u8981\u6c42\u5165\u53e3\u51fd\u6570\u7684\u7c7b\u578b\u662fvoid* (*)(void*)，\u800c\u7c7b\u7684\u666e\u901a\u6210\u5458\u51fd\u6570\u9690\u542b\u4e86this\u6307\u9488\u4f5c\u4e3a\u7b2c\u4e00\u4e2a\u53c2\u6570，\u51fd\u6570\u7b7e\u540d\u4e0d\u5339\u914d\u3002\u9759\u6001\u6210\u5458\u51fd\u6570\u4e0d\u6301\u6709this\u6307\u9488，\u7b26\u5408\u539f\u751f\u63a5\u53e3\u7684\u53c2\u6570\u8981\u6c42，\u56e0\u6b64\u5fc5\u987b\u7528\u9759\u6001\u6210\u5458\u51fd\u6570\u4f5c\u4e3a\u7ebf\u7a0b\u5165\u53e3，\u518d\u901a\u8fc7\u4f20\u5165this\u6307\u9488\u8bbf\u95ee\u5bf9\u8c61\u7684\u6210\u5458\u3002<\/li>\n<\/ul>\n<\/li>\n
                                                  • \n

                                                    \u6761\u4ef6\u53d8\u91cf\u7684 wait \u51fd\u6570\u4e3a\u4ec0\u4e48\u5fc5\u987b\u914d\u5408\u4e92\u65a5\u9501\u4f7f\u7528？\u4e24\u4e2a\u6838\u5fc3\u539f\u56e0：<\/p>\n

                                                      \n
                                                    • \u6761\u4ef6\u53d8\u91cf\u7684\u7b49\u5f85\u64cd\u4f5c，\u9700\u8981\u5148\u91ca\u653e\u4e92\u65a5\u9501，\u8ba9\u5176\u4ed6\u7ebf\u7a0b\u4fee\u6539\u4e34\u754c\u8d44\u6e90，\u88ab\u5524\u9192\u540e\u53c8\u9700\u8981\u91cd\u65b0\u6301\u6709\u9501，\u4fdd\u8bc1\u4e34\u754c\u8d44\u6e90\u64cd\u4f5c\u7684\u539f\u5b50\u6027\u3002<\/li>\n
                                                    • \u907f\u514d\u7ade\u6001\u6761\u4ef6：\u5982\u679c\u6ca1\u6709\u4e92\u65a5\u9501，\u7ebf\u7a0b\u5728\u8c03\u7528 wait \u524d，\u5176\u4ed6\u7ebf\u7a0b\u53ef\u80fd\u5df2\u7ecf\u53d1\u9001\u4e86\u5524\u9192\u4fe1\u53f7，\u5bfc\u81f4\u8be5\u7ebf\u7a0b\u6c38\u8fdc\u6302\u8d77，\u9020\u6210\u6b7b\u9501\u3002<\/li>\n<\/ul>\n<\/li>\n
                                                    • \n

                                                      \u4ec0\u4e48\u662f\u865a\u5047\u5524\u9192？\u5982\u4f55\u907f\u514d？<\/p>\n

                                                        \n
                                                      • \u865a\u5047\u5524\u9192\u662f\u6307pthread_cond_wait\u51fd\u6570\u5728\u6ca1\u6709\u7ebf\u7a0b\u53d1\u9001\u5524\u9192\u4fe1\u53f7\u7684\u60c5\u51b5\u4e0b，\u610f\u5916\u8fd4\u56de\u3002\u8fd9\u662f\u64cd\u4f5c\u7cfb\u7edf\u7684\u6b63\u5e38\u73b0\u8c61，\u4e3a\u4e86\u907f\u514d\u865a\u5047\u5524\u9192\u5bfc\u81f4\u7684\u903b\u8f91\u9519\u8bef，\u5fc5\u987b\u7528 while \u5faa\u73af（\u800c\u975e if）\u5224\u65ad\u7b49\u5f85\u6761\u4ef6，\u5373\u4f7f\u51fa\u73b0\u865a\u5047\u5524\u9192，\u4e5f\u4f1a\u518d\u6b21\u68c0\u67e5\u6761\u4ef6，\u4e0d\u6ee1\u8db3\u5219\u7ee7\u7eed\u7b49\u5f85\u3002<\/li>\n<\/ul>\n<\/li>\n
                                                      • \n

                                                        \u7ebf\u7a0b\u6c60\u4e3a\u4ec0\u4e48\u9002\u5408\u77ed\u8fde\u63a5，\u4e0d\u9002\u5408\u957f\u8fde\u63a5？<\/p>\n

                                                          \n
                                                        • \u7ebf\u7a0b\u6c60\u7684\u5de5\u4f5c\u7ebf\u7a0b\u6570\u91cf\u662f\u56fa\u5b9a\u7684，\u957f\u8fde\u63a5\u573a\u666f\u4e0b，\u4e00\u4e2a\u8fde\u63a5\u4f1a\u957f\u671f\u5360\u7528\u4e00\u4e2a\u5de5\u4f5c\u7ebf\u7a0b，\u5f53\u8fde\u63a5\u6570\u8d85\u8fc7\u7ebf\u7a0b\u6c60\u6700\u5927\u7ebf\u7a0b\u6570\u65f6，\u65b0\u7684\u8fde\u63a5\u5c06\u65e0\u6cd5\u88ab\u5904\u7406，\u670d\u52a1\u5b8c\u5168\u4e0d\u53ef\u7528\u3002\u800c\u77ed\u8fde\u63a5\u573a\u666f\u4e0b，\u4efb\u52a1\u6267\u884c\u5b8c\u6bd5\u540e\u7ebf\u7a0b\u7acb\u5373\u5f52\u8fd8\u5230\u7ebf\u7a0b\u6c60，\u53ef\u5904\u7406\u65b0\u7684\u4efb\u52a1，\u7ebf\u7a0b\u5229\u7528\u7387\u6781\u9ad8\u3002<\/li>\n<\/ul>\n<\/li>\n
                                                        • \n

                                                          popen \u51fd\u6570\u548c system \u51fd\u6570\u7684\u533a\u522b\u662f\u4ec0\u4e48？<\/p>\n

                                                            \n
                                                          • popen\u4f1a\u521b\u5efa\u7ba1\u9053，fork \u5b50\u8fdb\u7a0b\u6267\u884c shell \u547d\u4ee4，\u53ef\u901a\u8fc7\u7ba1\u9053\u8bfb\u53d6\u547d\u4ee4\u7684\u8f93\u51fa\u6216\u5411\u547d\u4ee4\u5199\u5165\u8f93\u5165，\u6267\u884c\u5b8c\u6bd5\u540e\u9700\u8c03\u7528pclose\u56de\u6536\u8d44\u6e90\u3002<\/li>\n
                                                          • system\u4f1a\u963b\u585e\u5f53\u524d\u8fdb\u7a0b，\u76f4\u5230 shell \u547d\u4ee4\u6267\u884c\u5b8c\u6bd5，\u65e0\u6cd5\u83b7\u53d6\u547d\u4ee4\u7684\u8f93\u51fa，\u53ea\u80fd\u83b7\u53d6\u9000\u51fa\u72b6\u6001\u7801\u3002<\/li>\n
                                                          • \u4e24\u8005\u90fd\u4f1a\u8c03\u7528 fork+exec \u6267\u884c shell \u547d\u4ee4，\u4f46popen\u652f\u6301\u53cc\u5411\u6570\u636e\u4ea4\u4e92，\u66f4\u9002\u5408\u9700\u8981\u83b7\u53d6\u547d\u4ee4\u6267\u884c\u7ed3\u679c\u7684\u573a\u666f\u3002<\/li>\n<\/ul>\n<\/li>\n
                                                          • \n

                                                            \u5355\u4f8b\u6a21\u5f0f\u7684\u53cc\u68c0\u67e5\u9501\u4e2d，\u4e3a\u4ec0\u4e48\u8981\u505a\u4e24\u6b21\u68c0\u67e5？<\/p>\n

                                                              \n
                                                            • \u7b2c\u4e00\u6b21\u975e\u52a0\u9501\u68c0\u67e5：\u63d0\u5347\u6027\u80fd，\u7edd\u5927\u591a\u6570\u573a\u666f\u4e0b\u5b9e\u4f8b\u5df2\u5b58\u5728，\u76f4\u63a5\u8fd4\u56de，\u907f\u514d\u9891\u7e41\u52a0\u9501\u7684\u5f00\u9500\u3002<\/li>\n
                                                            • \u7b2c\u4e8c\u6b21\u52a0\u9501\u540e\u68c0\u67e5：\u4fdd\u8bc1\u7ebf\u7a0b\u5b89\u5168，\u907f\u514d\u591a\u4e2a\u7ebf\u7a0b\u540c\u65f6\u901a\u8fc7\u7b2c\u4e00\u6b21\u68c0\u67e5，\u5728\u9501\u7b49\u5f85\u671f\u95f4，\u5176\u4ed6\u7ebf\u7a0b\u5df2\u7ecf\u521b\u5efa\u4e86\u5b9e\u4f8b，\u5bfc\u81f4\u5b9e\u4f8b\u88ab\u91cd\u590d\u521b\u5efa，\u7834\u574f\u5355\u4f8b\u7279\u6027\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

                                                              5.2 \u5b9e\u6218\u8e29\u5751\u4e0e\u907f\u5751\u65b9\u6848<\/h3>\n
                                                                \n
                                                              • \n

                                                                \u7ebf\u7a0b\u6c60\u957f\u8fde\u63a5\u5360\u7528\u5751<\/p>\n

                                                                  \n
                                                                • \u5751\u70b9：\u7528\u7ebf\u7a0b\u6c60\u5904\u7406\u957f\u8fde\u63a5，\u5bfc\u81f4\u5de5\u4f5c\u7ebf\u7a0b\u88ab\u957f\u671f\u5360\u7528，\u7ebf\u7a0b\u6c60\u8017\u5c3d\u540e\u65b0\u8fde\u63a5\u65e0\u6cd5\u5904\u7406\u3002<\/li>\n
                                                                • \u907f\u5751：\u7ebf\u7a0b\u6c60\u4ec5\u7528\u4e8e\u77ed\u8fde\u63a5 \/ \u77ed\u670d\u52a1\u573a\u666f，\u957f\u8fde\u63a5\u573a\u666f\u91c7\u7528\u591a\u8fdb\u7a0b \/ \u591a\u7ebf\u7a0b + IO \u591a\u8def\u590d\u7528（Reactor）\u6a21\u578b\u3002<\/li>\n<\/ul>\n<\/li>\n
                                                                • \n

                                                                  \u547d\u4ee4\u6ce8\u5165\u5b89\u5168\u5751<\/p>\n

                                                                    \n
                                                                  • \u5751\u70b9：\u4f7f\u7528\u9ed1\u540d\u5355\u673a\u5236\u8fc7\u6ee4\u547d\u4ee4，\u65e0\u6cd5\u62b5\u5fa1ls && rm -rf \/\u3001; rm -rf \/\u7b49\u547d\u4ee4\u6ce8\u5165\u653b\u51fb，\u5bfc\u81f4\u670d\u52a1\u5668\u88ab\u5165\u4fb5\u3002<\/li>\n
                                                                  • \u907f\u5751：\u91c7\u7528\u767d\u540d\u5355\u673a\u5236，\u4ec5\u5141\u8bb8\u6267\u884c\u660e\u786e\u6307\u5b9a\u7684\u5b89\u5168\u547d\u4ee4，\u4ece\u6839\u6e90\u907f\u514d\u547d\u4ee4\u6ce8\u5165\u98ce\u9669\u3002<\/li>\n<\/ul>\n<\/li>\n
                                                                  • \n

                                                                    \u6587\u4ef6\u63cf\u8ff0\u7b26\u6cc4\u6f0f\u5751<\/p>\n

                                                                      \n
                                                                    • \u5751\u70b9：TCP \u5957\u63a5\u5b57\u4f7f\u7528\u5b8c\u6bd5\u540e\u672a\u8c03\u7528close\u5173\u95ed，\u6216\u5b50\u8fdb\u7a0b \/ \u5b50\u7ebf\u7a0b\u672a\u5173\u95ed\u4e0d\u9700\u8981\u7684\u76d1\u542c\u5957\u63a5\u5b57，\u5bfc\u81f4\u6587\u4ef6\u63cf\u8ff0\u7b26\u6cc4\u6f0f，\u6700\u7ec8\u8017\u5c3d\u7cfb\u7edf\u6587\u4ef6\u63cf\u8ff0\u7b26\u4e0a\u9650，\u670d\u52a1\u65e0\u6cd5\u5efa\u7acb\u65b0\u8fde\u63a5\u3002<\/li>\n
                                                                    • \u907f\u5751：\u65e0\u8bba\u51fd\u6570\u6b63\u5e38\u8fd4\u56de\u8fd8\u662f\u5f02\u5e38\u9000\u51fa，\u4fdd\u8bc1\u6bcf\u4e2a\u5957\u63a5\u5b57\u6700\u7ec8\u90fd\u4f1a\u88ab\u5173\u95ed；\u5b50\u8fdb\u7a0b \/ \u5b50\u7ebf\u7a0b\u521b\u5efa\u540e，\u7acb\u5373\u5173\u95ed\u4e0d\u9700\u8981\u7684\u76d1\u542c\u5957\u63a5\u5b57\u3002<\/li>\n<\/ul>\n<\/li>\n
                                                                    • \n

                                                                      \u7f51\u7edc\u5b57\u8282\u5e8f\u8f6c\u6362\u5751<\/p>\n

                                                                        \n
                                                                      • \u5751\u70b9：\u7aef\u53e3\u548c IP \u5730\u5740\u672a\u8f6c\u6362\u4e3a\u7f51\u7edc\u5b57\u8282\u5e8f（\u5927\u7aef），\u76f4\u63a5\u4f20\u5165 bind\/connect，\u5bfc\u81f4\u7f51\u7edc\u901a\u4fe1\u5f02\u5e38，\u5ba2\u6237\u7aef\u65e0\u6cd5\u8fde\u63a5\u670d\u52a1\u5668\u3002<\/li>\n
                                                                      • \u907f\u5751：\u6240\u6709\u7aef\u53e3\u53f7\u5fc5\u987b\u901a\u8fc7htons\u8f6c\u6362，IP \u5730\u5740\u5fc5\u987b\u901a\u8fc7inet_addr\/htonl\u8f6c\u6362，\u4e25\u683c\u533a\u5206\u4e3b\u673a\u5b57\u8282\u5e8f\u4e0e\u7f51\u7edc\u5b57\u8282\u5e8f\u3002<\/li>\n<\/ul>\n<\/li>\n
                                                                      • \n

                                                                        \u591a\u7ebf\u7a0b\u4e34\u754c\u533a\u8fc7\u5927\u5751<\/p>\n

                                                                          \n
                                                                        • \u5751\u70b9：\u7ebf\u7a0b\u6c60\u4e2d，\u5c06\u4efb\u52a1\u6267\u884c\u903b\u8f91\u653e\u5728\u4e92\u65a5\u9501\u7684\u4e34\u754c\u533a\u5185，\u5bfc\u81f4\u540c\u4e00\u65f6\u95f4\u53ea\u6709\u4e00\u4e2a\u7ebf\u7a0b\u80fd\u6267\u884c\u4efb\u52a1，\u7ebf\u7a0b\u6c60\u9000\u5316\u4e3a\u5355\u7ebf\u7a0b，\u5b8c\u5168\u5931\u53bb\u5e76\u53d1\u80fd\u529b\u3002<\/li>\n
                                                                        • \u907f\u5751：\u4e25\u683c\u9075\u5faa\u4e34\u754c\u533a\u6700\u5c0f\u5316\u539f\u5219，\u4ec5\u5728\u64cd\u4f5c\u5171\u4eab\u4e34\u754c\u8d44\u6e90\u65f6\u6301\u6709\u9501，\u4e1a\u52a1\u903b\u8f91 \/ \u4efb\u52a1\u6267\u884c\u5fc5\u987b\u653e\u5728\u9501\u5916\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n
                                                                          \n

                                                                          \u7ed3\u5c3e：<\/h2>\n

                                                                          🍓 \u6211\u662f\u8349\u8393\u718a Lotso！\u82e5\u8fd9\u7bc7\u6280\u672f\u5e72\u8d27\u5e2e\u4f60\u6253\u901a\u4e86\u5b66\u4e60\u4e2d\u7684\u5361\u70b9：
                                                                          \n👀 \u3010\u5173\u6ce8\u3011\u8ddf\u6211\u4e00\u8d77\u6df1\u8015\u6280\u672f\u9886\u57df，\u4ece\u57fa\u7840\u5230\u8fdb\u9636，\u89c1\u8bc1\u6bcf\u4e00\u6b21\u6210\u957f
                                                                          \n\u2764\ufe0f \u3010\u70b9\u8d5e\u3011\u8ba9\u4f18\u8d28\u5185\u5bb9\u88ab\u66f4\u591a\u4eba\u770b\u89c1，\u8ba9\u77e5\u8bc6\u4f20\u9012\u66f4\u6709\u529b\u91cf
                                                                          \n\u2b50 \u3010\u6536\u85cf\u3011\u628a\u6838\u5fc3\u77e5\u8bc6\u70b9\u3001\u5b9e\u6218\u6280\u5de7\u5b58\u597d，\u9700\u8981\u65f6\u76f4\u63a5\u67e5\u3001\u968f\u65f6\u7528
                                                                          \n💬 \u3010\u8bc4\u8bba\u3011\u5206\u4eab\u4f60\u7684\u7ecf\u9a8c\u6216\u7591\u95ee（\u6bd4\u5982\u66fe\u8e29\u8fc7\u7684\u6280\u672f\u5751？），\u4e00\u8d77\u4ea4\u6d41\u907f\u5751
                                                                          \n🗳\ufe0f \u3010\u6295\u7968\u3011\u7528\u4f60\u7684\u9009\u62e9\u52a9\u529b\u793e\u533a\u5185\u5bb9\u65b9\u5411，\u544a\u8bc9\u5927\u5bb6\u54ea\u4e2a\u6280\u672f\u70b9\u6700\u8be5\u91cd\u70b9\u62c6\u89e3
                                                                          \n\u6280\u672f\u4e4b\u8def\u96be\u514d\u6709\u56f0\u60d1，\u4f46\u540c\u884c\u7684\u4eba\u4f1a\u8ba9\u524d\u8fdb\u66f4\u6709\u65b9\u5411～\u613f\u6211\u4eec\u90fd\u80fd\u5728\u81ea\u5df1\u4e13\u6ce8\u7684\u9886\u57df\u91cc，\u4e00\u6b65\u6b65\u9760\u8fd1\u5fc3\u4e2d\u7684\u6280\u672f\u76ee\u6807！<\/p>\n

                                                                          \u7ed3\u8bed：\u672c\u6587\u4ece\u57fa\u7840\u7ec4\u4ef6\u5c01\u88c5\u51fa\u53d1，\u5b8c\u6574\u5b9e\u73b0\u4e86\u591a\u7ebf\u7a0b\u8fdc\u7a0b\u547d\u4ee4\u6267\u884c\u670d\u52a1\u5668\u4e0e\u7ebf\u7a0b\u6c60\u9ad8\u5e76\u53d1 Echo \u670d\u52a1\u5668\u4e24\u5927\u5de5\u4e1a\u7ea7 TCP \u670d\u52a1\u5668，\u9010\u884c\u89e3\u6790\u4e86\u6838\u5fc3\u6e90\u7801\u7684\u8bbe\u8ba1\u601d\u60f3\u4e0e\u5e95\u5c42\u7ec6\u8282，\u540c\u65f6\u68b3\u7406\u4e86 TCP \u670d\u52a1\u5668\u6a21\u578b\u7684\u6f14\u8fdb\u903b\u8f91\u3001\u9762\u8bd5\u9ad8\u9891\u8003\u70b9\u4e0e\u5b9e\u6218\u8e29\u5751\u65b9\u6848\u3002\u8fd9\u4e9b\u5185\u5bb9\u4e0d\u4ec5\u662f Linux \u540e\u7aef\u5f00\u53d1\u7684\u6838\u5fc3\u6280\u80fd，\u66f4\u662f\u6821\u62db\u3001\u793e\u62db\u9762\u8bd5\u4e2d\u7684\u5fc5\u8003\u5185\u5bb9\u3002\u638c\u63e1\u8fd9\u4e9b\u5185\u5bb9，\u4f60\u4e0d\u4ec5\u80fd\u5199\u51fa\u7a33\u5b9a\u3001\u9ad8\u6548\u7684 TCP \u670d\u52a1\u5668，\u66f4\u80fd\u6df1\u5ea6\u7406\u89e3\u64cd\u4f5c\u7cfb\u7edf\u7684\u5e76\u53d1\u6a21\u578b\u3001\u7f51\u7edc\u7f16\u7a0b\u7684\u5e95\u5c42\u903b\u8f91，\u4e3a\u540e\u7eed\u5b66\u4e60 Reactor \u9ad8\u5e76\u53d1\u6a21\u578b\u3001nginx\u3001muduo \u7b49\u5f00\u6e90\u7f51\u7edc\u5e93\u6253\u4e0b\u6700\u575a\u5b9e\u7684\u57fa\u7840\u3002\u7f51\u7edc\u7f16\u7a0b\u7684\u5b66\u4e60，\u4ece\u6765\u4e0d\u662f\u7b80\u5355\u7684 API \u8c03\u7528，\u800c\u662f\u5bf9\u64cd\u4f5c\u7cfb\u7edf\u3001\u8ba1\u7b97\u673a\u7f51\u7edc\u3001\u6570\u636e\u7ed3\u6784\u4e0e\u7b97\u6cd5\u3001\u8bbe\u8ba1\u6a21\u5f0f\u7684\u7efc\u5408\u7406\u89e3\u3002\u5e0c\u671b\u672c\u6587\u80fd\u5e26\u4f60\u771f\u6b63\u8d70\u8fdb Linux \u9ad8\u6027\u80fd\u670d\u52a1\u5668\u5f00\u53d1\u7684\u5927\u95e8\u3002<\/font><\/p>\n

                                                                          \u2728\u628a\u8fd9\u4e9b\u5185\u5bb9\u5403\u900f\u8d85\u725b\u7684！\u653e\u677e\u4e0b\u5427\u2728 <\/font><\/p>\n

                                                                          \u0295\u02d8\u1d25\u02d8\u0294 <\/font><\/p>\n

                                                                          \u3065\u304d\u3089\u3069 <\/font><\/p>\n

                                                                          \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n","protected":false},"excerpt":{"rendered":"

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