{"id":123023,"date":"2026-11-06T08:18:32","date_gmt":"2026-11-06T00:18:32","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/123023.html"},"modified":"2026-11-06T08:18:32","modified_gmt":"2026-11-06T00:18:32","slug":"%e3%80%90linux%e7%bd%91%e7%bb%9c%e3%80%91tcp-%e6%9c%8d%e5%8a%a1%e5%99%a8%e5%a6%82%e4%bd%95%e5%b9%b6%e5%8f%91%e5%a4%84%e7%90%86%e5%a4%9a%e4%b8%aa%e5%ae%a2%e6%88%b7%e7%ab%af%ef%bc%9f%e4%bb%8e-fork","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/123023.html","title":{"rendered":"\u3010Linux\u7f51\u7edc\u3011TCP \u670d\u52a1\u5668\u5982\u4f55\u5e76\u53d1\u5904\u7406\u591a\u4e2a\u5ba2\u6237\u7aef\uff1f\u4ece fork\u3001\u50f5\u5c38\u8fdb\u7a0b\u5230\u53cc\u91cd fork"},"content":{"rendered":"

\"\u5c01\u9762\"<\/p>\n

🔥\u4e2a\u4eba\u4e3b\u9875：\u7231\u548c\u51b0\u9614\u4e50<\/font> 📚\u4e13\u680f\u4f20\u9001\u95e8：\u300a\u6570\u636e\u7ed3\u6784\u4e0e\u7b97\u6cd5\u300b \u3001C++\u3001 \u300aLinux\u64cd\u4f5c\u7cfb\u7edf\u300b 🐶\u5b66\u4e60\u65b9\u5411：C++\u65b9\u5411\u5b66\u4e60\u7231\u597d\u8005<\/font> \u2b50\u4eba\u751f\u683c\u8a00：\u5f97\u77e5\u5766\u7136 ，\u5931\u4e4b\u6de1\u7136 <\/font><\/p>\n

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

\n

🏠\u535a\u4e3b\u7b80\u4ecb \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" <\/p>\n

\u6587\u7ae0\u76ee\u5f55<\/h4>\n
    \n
  • \u524d\u8a00<\/li>\n
  • \u4e00\u3001\u5355\u8fdb\u7a0b\u670d\u52a1\u5668\u4e3a\u4ec0\u4e48\u4e0d\u80fd\u5e76\u53d1<\/li>\n
  • \u4e8c\u3001`fork` \u540e\u8c01\u80fd\u770b\u5230\u54ea\u4e9b\u6587\u4ef6\u63cf\u8ff0\u7b26<\/li>\n
  • \n
      \n
    • 2.1 \u5b50\u8fdb\u7a0b\u7ee7\u627f\u7236\u8fdb\u7a0b\u7684\u63cf\u8ff0\u7b26\u8868<\/li>\n
    • 2.2 \u4e0d\u9700\u8981\u7684\u63cf\u8ff0\u7b26\u5fc5\u987b\u5173\u95ed<\/li>\n
    • 2.3 \u4e3a\u4ec0\u4e48\u7236\u8fdb\u7a0b\u5fc5\u987b\u5173\u95ed\u901a\u4fe1 fd<\/li>\n<\/ul>\n<\/li>\n
    • \u4e09\u3001\u53ea fork \u4e00\u6b21\u4f1a\u51fa\u73b0\u50f5\u5c38\u8fdb\u7a0b<\/li>\n
    • \n
        \n
      • 3.1 \u5b50\u8fdb\u7a0b\u9000\u51fa\u540e\u9700\u8981\u56de\u6536<\/li>\n
      • 3.2 \u65b9\u6848\u4e00：\u5ffd\u7565 `SIGCHLD`<\/li>\n
      • 3.3 \u65b9\u6848\u4e8c：\u53cc\u91cd fork<\/li>\n<\/ul>\n<\/li>\n
      • \u56db\u3001\u5b8c\u6574\u7684\u591a\u8fdb\u7a0b\u670d\u52a1\u5668<\/li>\n
      • \n
          \n
        • 4.1 `TcpServer.hpp`<\/li>\n
        • 4.2 \u4e3a\u4ec0\u4e48 `peer` \u53ef\u4ee5\u6309\u503c\u4f20\u5165\u5b59\u5b50\u8fdb\u7a0b<\/li>\n<\/ul>\n<\/li>\n
        • \u4e94\u3001\u670d\u52a1\u5668\u91cd\u542f\u4e3a\u4ec0\u4e48\u53ef\u80fd bind \u5931\u8d25<\/li>\n
        • \n
            \n
          • 5.1 TCP \u8fde\u63a5\u5173\u95ed\u540e\u8fd8\u6709\u72b6\u6001<\/li>\n
          • 5.2 `SO_REUSEADDR`<\/li>\n
          • 5.3 \u4e0d\u8981\u628a\u9009\u9879\u5199\u6210\u6309\u4f4d\u6216\u7684\u540d\u79f0<\/li>\n<\/ul>\n<\/li>\n
          • \u516d\u3001\u591a\u8fdb\u7a0b\u6a21\u578b\u9002\u5408\u4ec0\u4e48\u573a\u666f<\/li>\n
          • \u4e03\u3001\u5bb9\u6613\u5199\u9519\u7684\u5730\u65b9<\/li>\n
          • \n
              \n
            • 7.1 \u7236\u8fdb\u7a0b\u5fd8\u8bb0\u5173\u95ed `sockfd`<\/li>\n
            • 7.2 \u5b50\u8fdb\u7a0b\u5fd8\u8bb0\u5173\u95ed `listen_sock`<\/li>\n
            • 7.3 \u7236\u8fdb\u7a0b\u963b\u585e\u7b49\u5f85\u771f\u6b63\u5e72\u6d3b\u7684\u5b50\u8fdb\u7a0b<\/li>\n
            • 7.4 `fork` \u5931\u8d25\u540e\u6ca1\u6709\u5173\u95ed\u901a\u4fe1 fd<\/li>\n
            • 7.5 \u6df7\u6dc6\u6587\u4ef6\u63cf\u8ff0\u7b26\u548c\u5185\u6838\u5bf9\u8c61<\/li>\n<\/ul>\n<\/li>\n
            • \u603b\u7ed3<\/li>\n<\/ul>\n
              \n

              \u524d\u8a00<\/h2>\n

              \u4e0a\u4e00\u7bc7\u5b8c\u6210\u4e86\u5355\u8fdb\u7a0b Echo Server\u3002\u5b83\u80fd\u591f\u6b63\u5e38\u8fde\u63a5\u3001\u8bfb\u53d6\u548c\u56de\u663e，\u4f46\u53ea\u80fd\u6309\u987a\u5e8f\u670d\u52a1\u5ba2\u6237\u7aef：\u4e3b\u7ebf\u7a0b\u8fdb\u5165 Service(sockfd) \u540e，\u53ea\u8981\u5f53\u524d\u8fde\u63a5\u4e0d\u9000\u51fa，\u5c31\u4e0d\u4f1a\u56de\u5230\u4e0b\u4e00\u8f6e accept\u3002<\/p>\n

              \u89e3\u51b3\u65b9\u6cd5\u5f88\u76f4\u63a5：\u4e3b\u8fdb\u7a0b\u53ea\u8d1f\u8d23\u83b7\u53d6\u8fde\u63a5，\u5b50\u8fdb\u7a0b\u8d1f\u8d23\u5904\u7406\u8fde\u63a5\u3002<\/p>\n

              \u4e0d\u8fc7\u4e00\u65e6\u52a0\u5165 fork，\u6587\u4ef6\u63cf\u8ff0\u7b26\u7ee7\u627f\u3001\u5f15\u7528\u8ba1\u6570\u3001\u50f5\u5c38\u8fdb\u7a0b\u548c\u8fde\u63a5\u5173\u95ed\u987a\u5e8f\u90fd\u4f1a\u8ddf\u7740\u51fa\u73b0\u3002\u672c\u6587\u4ece\u5355\u6b21 fork \u5f00\u59cb，\u6700\u540e\u6574\u7406\u6210\u53cc\u91cd fork \u7684\u591a\u8fdb\u7a0b TCP \u670d\u52a1\u5668，\u5e76\u89e3\u91ca\u670d\u52a1\u5668\u91cd\u542f\u65f6\u4e3a\u4ec0\u4e48\u53ef\u80fd\u6682\u65f6\u7ed1\u5b9a\u5931\u8d25\u3002<\/p>\n

              \n

              \u4e00\u3001\u5355\u8fdb\u7a0b\u670d\u52a1\u5668\u4e3a\u4ec0\u4e48\u4e0d\u80fd\u5e76\u53d1<\/h2>\n

              \u5355\u8fdb\u7a0b\u7248\u672c\u7684\u4e3b\u5faa\u73af\u5927\u81f4\u5982\u4e0b：<\/p>\n

              for<\/span> (<\/span>;<\/span>;<\/span>)<\/span> {<\/span>
              \n int<\/span> sockfd =<\/span> accept<\/span>(<\/span>listen_sock,<\/span> .<\/span>.<\/span>.<\/span>)<\/span>;<\/span>
              \n Service<\/span>(<\/span>sockfd)<\/span>;<\/span>
              \n close<\/span>(<\/span>sockfd)<\/span>;<\/span>
              \n}<\/span><\/p>\n

              accept \u8fd4\u56de\u5ba2\u6237\u7aef A \u7684\u901a\u4fe1 fd \u540e，\u7a0b\u5e8f\u8fdb\u5165 Service(A)\u3002\u53ea\u8981 A \u4e0d\u5173\u95ed\u8fde\u63a5，read(A) \u5c31\u4f1a\u4e0d\u65ad\u7b49\u5f85\u5e76\u5904\u7406 A \u7684\u6570\u636e，\u4e3b\u7ebf\u7a0b\u65e0\u6cd5\u7ee7\u7eed\u6267\u884c accept\u3002<\/p>\n

              \u5ba2\u6237\u7aef B \u6b64\u65f6\u4ecd\u53ef\u80fd\u5b8c\u6210\u4e09\u6b21\u63e1\u624b，\u56e0\u4e3a\u63e1\u624b\u7531\u5185\u6838\u534f\u8bae\u6808\u5904\u7406\u3002\u53ef\u662f\u5e94\u7528\u7a0b\u5e8f\u6ca1\u6709\u518d\u6b21\u8c03\u7528 accept，B \u53ea\u80fd\u505c\u7559\u5728\u8fde\u63a5\u961f\u5217\u4e2d，\u8fdf\u8fdf\u5f97\u4e0d\u5230\u4e1a\u52a1\u54cd\u5e94\u3002<\/p>\n

              \u95ee\u9898\u4e0d\u5728 TCP，\u4e5f\u4e0d\u5728 accept，\u800c\u5728\u4e8e\u53ea\u6709\u4e00\u6761\u6267\u884c\u6d41\u627f\u62c5\u4e86\u4e24\u79cd\u804c\u8d23：<\/p>\n

              \u83b7\u53d6\u65b0\u8fde\u63a5 + \u670d\u52a1\u5df2\u6709\u8fde\u63a5<\/p>\n

              \u628a\u5b83\u4eec\u62c6\u5f00\u4ee5\u540e，\u4e3b\u8fdb\u7a0b\u5c31\u53ef\u4ee5\u5feb\u901f\u56de\u5230 accept\u3002<\/p>\n

              \u4e8c\u3001fork \u540e\u8c01\u80fd\u770b\u5230\u54ea\u4e9b\u6587\u4ef6\u63cf\u8ff0\u7b26<\/h2>\n

              2.1 \u5b50\u8fdb\u7a0b\u7ee7\u627f\u7236\u8fdb\u7a0b\u7684\u63cf\u8ff0\u7b26\u8868<\/h3>\n

              \u7236\u8fdb\u7a0b\u5b8c\u6210 accept \u540e，\u901a\u5e38\u540c\u65f6\u6301\u6709\u4e24\u4e2a\u6587\u4ef6\u63cf\u8ff0\u7b26：<\/p>\n

              listen_sock：\u76d1\u542c\u5957\u63a5\u5b57
              \nsockfd：\u5f53\u524d\u5ba2\u6237\u7aef\u901a\u4fe1\u5957\u63a5\u5b57<\/p>\n

              \u8fd9\u65f6\u8c03\u7528 fork，\u5b50\u8fdb\u7a0b\u4f1a\u7ee7\u627f\u7236\u8fdb\u7a0b\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u3002\u7236\u5b50\u8fdb\u7a0b\u4e2d\u7684\u63cf\u8ff0\u7b26\u7f16\u53f7\u867d\u7136\u76f8\u540c，\u4f46\u5b83\u4eec\u80cc\u540e\u7684\u63cf\u8ff0\u7b26\u8868\u9879\u5171\u540c\u5f15\u7528\u5185\u6838\u6587\u4ef6\u5bf9\u8c61\u3002<\/p>\n

              \u6240\u4ee5\u5b50\u8fdb\u7a0b\u65e2\u80fd\u770b\u5230 listen_sock，\u4e5f\u80fd\u770b\u5230 sockfd\u3002<\/p>\n

              2.2 \u4e0d\u9700\u8981\u7684\u63cf\u8ff0\u7b26\u5fc5\u987b\u5173\u95ed<\/h3>\n

              \u804c\u8d23\u5206\u5de5\u5e94\u8be5\u662f：<\/p>\n

                \n
              • \u7236\u8fdb\u7a0b\u7ee7\u7eed accept，\u4e0d\u8d1f\u8d23\u5f53\u524d\u5ba2\u6237\u7aef\u901a\u4fe1；<\/li>\n
              • \u5b50\u8fdb\u7a0b\u53ea\u670d\u52a1\u5f53\u524d\u5ba2\u6237\u7aef，\u4e0d\u8d1f\u8d23\u63a5\u6536\u65b0\u8fde\u63a5\u3002<\/li>\n<\/ul>\n

                \u56e0\u6b64：<\/p>\n

                pid_t id =<\/span> fork<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

                if<\/span> (<\/span>id ==<\/span> 0<\/span>)<\/span> {<\/span>
                \n close<\/span>(<\/span>listen_sock)<\/span>;<\/span> \/\/ \u5b50\u8fdb\u7a0b\u4e0d\u8d1f\u8d23\u83b7\u53d6\u65b0\u8fde\u63a5<\/span>
                \n Service<\/span>(<\/span>sockfd)<\/span>;<\/span>
                \n close<\/span>(<\/span>sockfd)<\/span>;<\/span>
                \n exit<\/span>(<\/span>0<\/span>)<\/span>;<\/span>
                \n}<\/span><\/p>\n

                close<\/span>(<\/span>sockfd)<\/span>;<\/span> \/\/ \u7236\u8fdb\u7a0b\u4e0d\u8d1f\u8d23\u670d\u52a1\u5f53\u524d\u5ba2\u6237\u7aef<\/span><\/p>\n

                \u8fd9\u91cc\u7684 close \u4e0d\u4e00\u5b9a\u7acb\u523b\u9500\u6bc1\u5185\u6838 Socket\u3002\u7236\u5b50\u8fdb\u7a0b\u90fd\u5f15\u7528\u901a\u4fe1\u6587\u4ef6\u5bf9\u8c61\u65f6，\u5f15\u7528\u8ba1\u6570\u81f3\u5c11\u4e3a 2；\u7236\u8fdb\u7a0b\u5173\u95ed\u81ea\u5df1\u7684 sockfd \u540e，\u5b50\u8fdb\u7a0b\u4ecd\u7136\u53ef\u4ee5\u7ee7\u7eed\u4f7f\u7528\u3002\u53ea\u6709\u6240\u6709\u5f15\u7528\u90fd\u5173\u95ed，\u76f8\u5173\u5185\u6838\u8d44\u6e90\u624d\u4f1a\u771f\u6b63\u91ca\u653e\u3002<\/p>\n

                \u591a\u8fdb\u7a0b\u7f51\u7edc\u7a0b\u5e8f\u4e2d，close \u7684\u542b\u4e49\u662f\u201c\u5f53\u524d\u8fdb\u7a0b\u653e\u5f03\u8fd9\u4efd\u5f15\u7528\u201d，\u4e0d\u662f\u65e0\u6761\u4ef6\u628a\u5176\u4ed6\u8fdb\u7a0b\u6b63\u5728\u4f7f\u7528\u7684\u8fde\u63a5\u4e00\u8d77\u9500\u6bc1\u3002<\/b><\/font><\/p>\n

                2.3 \u4e3a\u4ec0\u4e48\u7236\u8fdb\u7a0b\u5fc5\u987b\u5173\u95ed\u901a\u4fe1 fd<\/h3>\n

                \u5982\u679c\u7236\u8fdb\u7a0b\u4e00\u76f4\u4fdd\u7559\u6bcf\u6b21 accept \u8fd4\u56de\u7684\u901a\u4fe1 fd，\u5373\u4f7f\u5b50\u8fdb\u7a0b\u5df2\u7ecf\u670d\u52a1\u5b8c\u6210\u5e76\u5173\u95ed\u8fde\u63a5，\u5185\u6838\u5bf9\u8c61\u4ecd\u7136\u88ab\u7236\u8fdb\u7a0b\u5f15\u7528\u3002<\/p>\n

                \u540e\u679c\u5305\u62ec：<\/p>\n

                  \n
                • \u6587\u4ef6\u63cf\u8ff0\u7b26\u4e0d\u65ad\u6cc4\u6f0f；<\/li>\n
                • \u8fde\u63a5\u65e0\u6cd5\u6309\u9884\u671f\u5f7b\u5e95\u5173\u95ed；<\/li>\n
                • \u670d\u52a1\u5668\u8fd0\u884c\u65f6\u95f4\u8d8a\u957f，\u5360\u7528\u8d44\u6e90\u8d8a\u591a\u3002<\/li>\n<\/ul>\n

                  \u56e0\u6b64，\u7236\u8fdb\u7a0b\u5b8c\u6210 fork \u540e，\u5e94\u7acb\u5373\u5173\u95ed\u81ea\u5df1\u4e0d\u4f7f\u7528\u7684\u901a\u4fe1 fd\u3002<\/p>\n

                  \u4e09\u3001\u53ea fork \u4e00\u6b21\u4f1a\u51fa\u73b0\u50f5\u5c38\u8fdb\u7a0b<\/h2>\n

                  3.1 \u5b50\u8fdb\u7a0b\u9000\u51fa\u540e\u9700\u8981\u56de\u6536<\/h3>\n

                  \u5b50\u8fdb\u7a0b\u5904\u7406\u5b8c\u5ba2\u6237\u7aef\u540e\u4f1a\u9000\u51fa\u3002\u53ea\u8981\u7236\u8fdb\u7a0b\u4ecd\u7136\u5b58\u5728，\u5df2\u7ecf\u9000\u51fa\u4f46\u5c1a\u672a\u88ab wait \u7684\u5b50\u8fdb\u7a0b\u5c31\u4f1a\u5904\u4e8e\u50f5\u5c38\u72b6\u6001\u3002<\/p>\n

                  \u5982\u679c\u670d\u52a1\u5668\u4e0d\u65ad\u63a5\u6536\u8fde\u63a5\u3001\u4e0d\u65ad\u521b\u5efa\u5b50\u8fdb\u7a0b，\u5374\u4ece\u4e0d\u56de\u6536，\u50f5\u5c38\u8fdb\u7a0b\u5c31\u4f1a\u7d2f\u79ef\u3002<\/p>\n

                  \u6700\u76f4\u63a5\u7684\u5199\u6cd5\u662f：<\/p>\n

                  pid_t id =<\/span> fork<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

                  if<\/span> (<\/span>id ><\/span> 0<\/span>)<\/span> {<\/span>
                  \n close<\/span>(<\/span>sockfd)<\/span>;<\/span>
                  \n waitpid<\/span>(<\/span>id,<\/span> nullptr<\/span>,<\/span> 0<\/span>)<\/span>;<\/span>
                  \n}<\/span><\/p>\n

                  \u4f46\u963b\u585e\u5f0f waitpid \u4f1a\u8ba9\u7236\u8fdb\u7a0b\u7b49\u5230\u5b50\u8fdb\u7a0b\u670d\u52a1\u7ed3\u675f，\u670d\u52a1\u5668\u53c8\u56de\u5230\u4e86\u8fd1\u4f3c\u4e32\u884c\u72b6\u6001\u3002<\/p>\n

                  3.2 \u65b9\u6848\u4e00：\u5ffd\u7565 SIGCHLD<\/h3>\n

                  \u5728 Linux \u4e0a，\u53ef\u4ee5\u8ba9\u7cfb\u7edf\u81ea\u52a8\u5904\u7406\u9000\u51fa\u5b50\u8fdb\u7a0b：<\/p>\n

                  signal<\/span>(<\/span>SIGCHLD,<\/span> SIG_IGN)<\/span>;<\/span><\/p>\n

                  \u4e4b\u540e\u7236\u8fdb\u7a0b\u4e0d\u9700\u8981\u9010\u4e2a\u963b\u585e\u7b49\u5f85，\u4e3b\u5faa\u73af\u53ef\u4ee5\u7ee7\u7eed\u6267\u884c accept\u3002<\/p>\n

                  \u8fd9\u79cd\u5199\u6cd5\u7b80\u6d01，\u4f46\u4f9d\u8d56\u7cfb\u7edf\u5bf9 SIGCHLD \u5ffd\u7565\u884c\u4e3a\u7684\u5904\u7406\u3002\u82e5\u7a0b\u5e8f\u8fd8\u9700\u8981\u53d6\u5f97\u5b50\u8fdb\u7a0b\u9000\u51fa\u72b6\u6001，\u5c31\u4e0d\u9002\u5408\u76f4\u63a5\u5ffd\u7565，\u800c\u5e94\u8be5\u5b89\u88c5\u4fe1\u53f7\u5904\u7406\u5668\u5e76\u5faa\u73af waitpid(-1, …, WNOHANG)\u3002<\/p>\n

                  3.3 \u65b9\u6848\u4e8c：\u53cc\u91cd fork<\/h3>\n

                  \u53e6\u4e00\u79cd\u7ecf\u5178\u505a\u6cd5\u662f：<\/p>\n

                • \u7236\u8fdb\u7a0b fork \u51fa\u4e2d\u95f4\u5b50\u8fdb\u7a0b；<\/li>\n
                • \u4e2d\u95f4\u5b50\u8fdb\u7a0b\u7acb\u5373\u518d\u6b21 fork；<\/li>\n
                • \u4e2d\u95f4\u5b50\u8fdb\u7a0b\u9a6c\u4e0a\u9000\u51fa；<\/li>\n
                • \u7236\u8fdb\u7a0b\u53ea\u7b49\u5f85\u8fd9\u4e2a\u751f\u547d\u5468\u671f\u6781\u77ed\u7684\u4e2d\u95f4\u5b50\u8fdb\u7a0b；<\/li>\n
                • \u5b59\u5b50\u8fdb\u7a0b\u771f\u6b63\u6267\u884c Service；<\/li>\n
                • \u4e2d\u95f4\u5b50\u8fdb\u7a0b\u9000\u51fa\u540e，\u5b59\u5b50\u8fdb\u7a0b\u6210\u4e3a\u5b64\u513f，\u7531\u7cfb\u7edf\u8fdb\u7a0b\u63a5\u7ba1\u5e76\u56de\u6536\u3002<\/li>\n

                  \u4ee3\u7801\u7ed3\u6784\u5982\u4e0b：<\/p>\n

                  pid_t id =<\/span> fork<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

                  if<\/span> (<\/span>id ==<\/span> 0<\/span>)<\/span> {<\/span>
                  \n close<\/span>(<\/span>listen_sock)<\/span>;<\/span><\/p>\n

                  pid_t grandchild =<\/span> fork<\/span>(<\/span>)<\/span>;<\/span>
                  \n if<\/span> (<\/span>grandchild <<\/span> 0<\/span>)<\/span> {<\/span>
                  \n close<\/span>(<\/span>sockfd)<\/span>;<\/span>
                  \n exit<\/span>(<\/span>1<\/span>)<\/span>;<\/span>
                  \n }<\/span>
                  \n if<\/span> (<\/span>grandchild ><\/span> 0<\/span>)<\/span> {<\/span>
                  \n exit<\/span>(<\/span>0<\/span>)<\/span>;<\/span> \/\/ \u4e2d\u95f4\u5b50\u8fdb\u7a0b\u7acb\u5373\u9000\u51fa<\/span>
                  \n }<\/span><\/p>\n

                  Service<\/span>(<\/span>sockfd)<\/span>;<\/span> \/\/ \u5b59\u5b50\u8fdb\u7a0b\u670d\u52a1\u5ba2\u6237\u7aef<\/span>
                  \n close<\/span>(<\/span>sockfd)<\/span>;<\/span>
                  \n exit<\/span>(<\/span>0<\/span>)<\/span>;<\/span>
                  \n}<\/span><\/p>\n

                  close<\/span>(<\/span>sockfd)<\/span>;<\/span>
                  \nwaitpid<\/span>(<\/span>id,<\/span> nullptr<\/span>,<\/span> 0<\/span>)<\/span>;<\/span> \/\/ \u5f88\u5feb\u56de\u6536\u4e2d\u95f4\u5b50\u8fdb\u7a0b<\/span><\/p>\n

                  \u8fd9\u91cc\u6700\u5bb9\u6613\u5199\u9519\u7684\u662f\u201c\u5b64\u513f\u8fdb\u7a0b\u201d\u548c\u201c\u50f5\u5c38\u8fdb\u7a0b\u201d\u7684\u5173\u7cfb\u3002<\/p>\n

                  \u53ea fork \u4e00\u6b21\u65f6，\u5982\u679c\u7236\u8fdb\u7a0b\u4ecd\u7136\u8fd0\u884c，\u5b50\u8fdb\u7a0b\u9000\u51fa\u540e\u4f1a\u6210\u4e3a\u50f5\u5c38，\u4e0d\u4f1a\u81ea\u52a8\u53d8\u6210\u5b64\u513f\u3002\u53ea\u6709\u7236\u8fdb\u7a0b\u5148\u9000\u51fa，\u4ecd\u5728\u8fd0\u884c\u7684\u5b50\u8fdb\u7a0b\u624d\u4f1a\u6210\u4e3a\u5b64\u513f\u3002<\/p>\n

                  \u53cc\u91cd fork \u4e2d，\u771f\u6b63\u5e72\u6d3b\u7684\u662f\u5b59\u5b50\u8fdb\u7a0b\u3002\u5b83\u7684\u76f4\u63a5\u7236\u8fdb\u7a0b\u5f88\u5feb\u9000\u51fa，\u6240\u4ee5\u5b83\u624d\u4f1a\u88ab\u7cfb\u7edf\u63a5\u7ba1\u3002<\/p>\n

                  \u53cc\u91cd fork \u7684\u76ee\u7684\u4e0d\u662f\u201c\u521b\u5efa\u66f4\u591a\u8fdb\u7a0b\u201d，\u800c\u662f\u8ba9\u771f\u6b63\u5904\u7406\u8fde\u63a5\u7684\u8fdb\u7a0b\u8131\u79bb\u539f\u7236\u8fdb\u7a0b\u7684\u56de\u6536\u5173\u7cfb，\u540c\u65f6\u8ba9\u539f\u7236\u8fdb\u7a0b\u5feb\u901f\u56de\u5230 accept\u3002<\/b><\/font><\/p>\n

                  \u56db\u3001\u5b8c\u6574\u7684\u591a\u8fdb\u7a0b\u670d\u52a1\u5668<\/h2>\n

                  \u7b2c\u4e00\u7bc7\u4e2d\u7684 Common.hpp\u3001InetAddr.hpp\u3001\u5ba2\u6237\u7aef\u548c Makefile \u53ef\u4ee5\u7ee7\u7eed\u4f7f\u7528，\u53ea\u66ff\u6362 TcpServer.hpp\u3002<\/p>\n

                  4.1 TcpServer.hpp<\/h3>\n

                  #<\/span>pragma<\/span> once<\/span><\/span><\/p>\n

                  #<\/span>include<\/span> "Common.hpp"<\/span><\/span>
                  \n#<\/span>include<\/span> "InetAddr.hpp"<\/span><\/span><\/p>\n

                  #<\/span>include<\/span> <sys\/wait.h><\/span><\/span><\/p>\n

                  #<\/span>include<\/span> <iostream><\/span><\/span><\/p>\n

                  class<\/span> TcpServer<\/span> :<\/span> public<\/span> NoCopy<\/span><\/span> {<\/span>
                  \npublic<\/span>:<\/span>
                  \n explicit<\/span> TcpServer<\/span>(<\/span>uint16_t<\/span> port)<\/span>
                  \n :<\/span> port_<\/span>(<\/span>port)<\/span> {<\/span>}<\/span><\/p>\n

                  bool<\/span> Init<\/span>(<\/span>)<\/span> {<\/span>
                  \n listen_sock_ =<\/span> socket<\/span>(<\/span>AF_INET,<\/span> SOCK_STREAM,<\/span> 0<\/span>)<\/span>;<\/span>
                  \n if<\/span> (<\/span>listen_sock_ <<\/span> 0<\/span>)<\/span> {<\/span>
                  \n std::<\/span>cerr <<<\/span> "socket error: "<\/span> <<<\/span> strerror<\/span>(<\/span>errno)<\/span> <<<\/span> std::<\/span>endl;<\/span>
                  \n return<\/span> false<\/span>;<\/span>
                  \n }<\/span><\/p>\n

                  int<\/span> enable =<\/span> 1<\/span>;<\/span>
                  \n if<\/span> (<\/span>setsockopt<\/span>(<\/span>listen_sock_,<\/span>
                  \n SOL_SOCKET,<\/span>
                  \n SO_REUSEADDR,<\/span>
                  \n &<\/span>enable,<\/span>
                  \n sizeof<\/span>(<\/span>enable)<\/span>)<\/span> <<\/span> 0<\/span>)<\/span> {<\/span>
                  \n std::<\/span>cerr <<<\/span> "setsockopt error: "<\/span>
                  \n <<<\/span> strerror<\/span>(<\/span>errno)<\/span> <<<\/span> std::<\/span>endl;<\/span>
                  \n return<\/span> false<\/span>;<\/span>
                  \n }<\/span><\/p>\n

                  InetAddr local<\/span>(<\/span>port_)<\/span>;<\/span>
                  \n if<\/span> (<\/span>bind<\/span>(<\/span>listen_sock_,<\/span> local.<\/span>AddrPtr<\/span>(<\/span>)<\/span>,<\/span> local.<\/span>Length<\/span>(<\/span>)<\/span>)<\/span> <<\/span> 0<\/span>)<\/span> {<\/span>
                  \n std::<\/span>cerr <<<\/span> "bind error: "<\/span> <<<\/span> strerror<\/span>(<\/span>errno)<\/span> <<<\/span> std::<\/span>endl;<\/span>
                  \n return<\/span> false<\/span>;<\/span>
                  \n }<\/span><\/p>\n

                  if<\/span> (<\/span>listen<\/span>(<\/span>listen_sock_,<\/span> 8<\/span>)<\/span> <<\/span> 0<\/span>)<\/span> {<\/span>
                  \n std::<\/span>cerr <<<\/span> "listen error: "<\/span> <<<\/span> strerror<\/span>(<\/span>errno)<\/span> <<<\/span> std::<\/span>endl;<\/span>
                  \n return<\/span> false<\/span>;<\/span>
                  \n }<\/span>
                  \n return<\/span> true<\/span>;<\/span>
                  \n }<\/span><\/p>\n

                  void<\/span> Run<\/span>(<\/span>)<\/span> {<\/span>
                  \n for<\/span> (<\/span>;<\/span>;<\/span>)<\/span> {<\/span>
                  \n sockaddr_in peer_addr{<\/span>}<\/span>;<\/span>
                  \n socklen_t len =<\/span> sizeof<\/span>(<\/span>peer_addr)<\/span>;<\/span><\/p>\n

                  int<\/span> sockfd =<\/span> accept<\/span>(<\/span>
                  \n listen_sock_,<\/span>
                  \n reinterpret_cast<\/span><<\/span>sockaddr*<\/span>><\/span><\/span><\/span>(<\/span>&<\/span>peer_addr)<\/span>,<\/span>
                  \n &<\/span>len)<\/span>;<\/span><\/p>\n

                  if<\/span> (<\/span>sockfd <<\/span> 0<\/span>)<\/span> {<\/span>
                  \n if<\/span> (<\/span>errno ==<\/span> EINTR)<\/span> {<\/span>
                  \n continue<\/span>;<\/span>
                  \n }<\/span>
                  \n std::<\/span>cerr <<<\/span> "accept error: "<\/span>
                  \n <<<\/span> strerror<\/span>(<\/span>errno)<\/span> <<<\/span> std::<\/span>endl;<\/span>
                  \n continue<\/span>;<\/span>
                  \n }<\/span><\/p>\n

                  InetAddr peer<\/span>(<\/span>peer_addr)<\/span>;<\/span>
                  \n ProcessConnection<\/span>(<\/span>sockfd,<\/span> peer)<\/span>;<\/span>
                  \n }<\/span>
                  \n }<\/span><\/p>\n

                  ~<\/span>TcpServer<\/span>(<\/span>)<\/span> override<\/span> {<\/span>
                  \n if<\/span> (<\/span>listen_sock_ >=<\/span> 0<\/span>)<\/span> {<\/span>
                  \n close<\/span>(<\/span>listen_sock_)<\/span>;<\/span>
                  \n }<\/span>
                  \n }<\/span><\/p>\n

                  private<\/span>:<\/span>
                  \n static<\/span> bool<\/span> WriteAll<\/span>(<\/span>int<\/span> sockfd,<\/span> const<\/span> std::<\/span>string&<\/span> message)<\/span> {<\/span>
                  \n std::<\/span>size_t offset =<\/span> 0<\/span>;<\/span>
                  \n while<\/span> (<\/span>offset <<\/span> message.<\/span>size<\/span>(<\/span>)<\/span>)<\/span> {<\/span>
                  \n ssize_t n =<\/span> write<\/span>(<\/span>sockfd,<\/span>
                  \n message.<\/span>data<\/span>(<\/span>)<\/span> +<\/span> offset,<\/span>
                  \n message.<\/span>size<\/span>(<\/span>)<\/span> –<\/span> offset)<\/span>;<\/span>
                  \n if<\/span> (<\/span>n ><\/span> 0<\/span>)<\/span> {<\/span>
                  \n offset +=<\/span> static_cast<\/span><<\/span>std::<\/span>size_t><\/span><\/span><\/span>(<\/span>n)<\/span>;<\/span>
                  \n }<\/span> else<\/span> if<\/span> (<\/span>n <<\/span> 0<\/span> &&<\/span> errno ==<\/span> EINTR)<\/span> {<\/span>
                  \n continue<\/span>;<\/span>
                  \n }<\/span> else<\/span> {<\/span>
                  \n return<\/span> false<\/span>;<\/span>
                  \n }<\/span>
                  \n }<\/span>
                  \n return<\/span> true<\/span>;<\/span>
                  \n }<\/span><\/p>\n

                  static<\/span> void<\/span> Service<\/span>(<\/span>int<\/span> sockfd,<\/span> const<\/span> InetAddr&<\/span> peer)<\/span> {<\/span>
                  \n char<\/span> buffer[<\/span>1024<\/span>]<\/span>;<\/span><\/p>\n

                  for<\/span> (<\/span>;<\/span>;<\/span>)<\/span> {<\/span>
                  \n ssize_t n =<\/span> read<\/span>(<\/span>sockfd,<\/span> buffer,<\/span> sizeof<\/span>(<\/span>buffer)<\/span> –<\/span> 1<\/span>)<\/span>;<\/span>
                  \n if<\/span> (<\/span>n ><\/span> 0<\/span>)<\/span> {<\/span>
                  \n buffer[<\/span>n]<\/span> =<\/span> '\\\\0'<\/span>;<\/span>
                  \n std::<\/span>string response =<\/span> "server echo# "<\/span>;<\/span>
                  \n response.<\/span>append<\/span>(<\/span>buffer,<\/span> static_cast<\/span><<\/span>std::<\/span>size_t><\/span><\/span><\/span>(<\/span>n)<\/span>)<\/span>;<\/span><\/p>\n

                  if<\/span> (<\/span>!<\/span>WriteAll<\/span>(<\/span>sockfd,<\/span> response)<\/span>)<\/span> {<\/span>
                  \n break<\/span>;<\/span>
                  \n }<\/span>
                  \n }<\/span> else<\/span> if<\/span> (<\/span>n ==<\/span> 0<\/span>)<\/span> {<\/span>
                  \n std::<\/span>cout <<<\/span> peer.<\/span>StringAddr<\/span>(<\/span>)<\/span> <<<\/span> " quit"<\/span> <<<\/span> std::<\/span>endl;<\/span>
                  \n break<\/span>;<\/span>
                  \n }<\/span> else<\/span> if<\/span> (<\/span>errno !=<\/span> EINTR)<\/span> {<\/span>
                  \n break<\/span>;<\/span>
                  \n }<\/span>
                  \n }<\/span>
                  \n }<\/span><\/p>\n

                  void<\/span> ProcessConnection<\/span>(<\/span>int<\/span> sockfd,<\/span> const<\/span> InetAddr&<\/span> peer)<\/span> {<\/span>
                  \n pid_t id =<\/span> fork<\/span>(<\/span>)<\/span>;<\/span>
                  \n if<\/span> (<\/span>id <<\/span> 0<\/span>)<\/span> {<\/span>
                  \n std::<\/span>cerr <<<\/span> "fork error: "<\/span> <<<\/span> strerror<\/span>(<\/span>errno)<\/span> <<<\/span> std::<\/span>endl;<\/span>
                  \n close<\/span>(<\/span>sockfd)<\/span>;<\/span>
                  \n return<\/span>;<\/span>
                  \n }<\/span><\/p>\n

                  if<\/span> (<\/span>id ==<\/span> 0<\/span>)<\/span> {<\/span>
                  \n close<\/span>(<\/span>listen_sock_)<\/span>;<\/span><\/p>\n

                  pid_t grandchild =<\/span> fork<\/span>(<\/span>)<\/span>;<\/span>
                  \n if<\/span> (<\/span>grandchild <<\/span> 0<\/span>)<\/span> {<\/span>
                  \n close<\/span>(<\/span>sockfd)<\/span>;<\/span>
                  \n exit<\/span>(<\/span>FORK_ERR)<\/span>;<\/span>
                  \n }<\/span>
                  \n if<\/span> (<\/span>grandchild ><\/span> 0<\/span>)<\/span> {<\/span>
                  \n exit<\/span>(<\/span>OK)<\/span>;<\/span>
                  \n }<\/span><\/p>\n

                  Service<\/span>(<\/span>sockfd,<\/span> peer)<\/span>;<\/span>
                  \n close<\/span>(<\/span>sockfd)<\/span>;<\/span>
                  \n exit<\/span>(<\/span>OK)<\/span>;<\/span>
                  \n }<\/span><\/p>\n

                  close<\/span>(<\/span>sockfd)<\/span>;<\/span><\/p>\n

                  while<\/span> (<\/span>waitpid<\/span>(<\/span>id,<\/span> nullptr<\/span>,<\/span> 0<\/span>)<\/span> <<\/span> 0<\/span> &&<\/span> errno ==<\/span> EINTR)<\/span> {<\/span>
                  \n }<\/span>
                  \n }<\/span><\/p>\n

                  private<\/span>:<\/span>
                  \n uint16_t<\/span> port_;<\/span>
                  \n int<\/span> listen_sock_ =<\/span> –<\/span>1<\/span>;<\/span>
                  \n}<\/span>;<\/span><\/p>\n

                  4.2 \u4e3a\u4ec0\u4e48 peer \u53ef\u4ee5\u6309\u503c\u4f20\u5165\u5b59\u5b50\u8fdb\u7a0b<\/h3>\n

                  fork \u4f1a\u590d\u5236\u5f53\u524d\u8fdb\u7a0b\u7684\u7528\u6237\u7a7a\u95f4\u3002InetAddr peer \u5728\u5b50\u8fdb\u7a0b\u3001\u5b59\u5b50\u8fdb\u7a0b\u4e2d\u5404\u81ea\u62e5\u6709\u4e00\u4efd\u526f\u672c，\u539f\u7236\u8fdb\u7a0b\u56de\u5230\u4e0b\u4e00\u8f6e\u5faa\u73af\u4e0d\u4f1a\u6539\u574f\u5b59\u5b50\u8fdb\u7a0b\u91cc\u7684\u5730\u5740\u5bf9\u8c61\u3002<\/p>\n

                  \u8fd9\u548c\u7ebf\u7a0b\u4e0d\u540c\u3002\u7ebf\u7a0b\u5171\u4eab\u540c\u4e00\u4e2a\u5730\u5740\u7a7a\u95f4，\u82e5\u628a\u5faa\u73af\u5c40\u90e8\u53d8\u91cf\u6309\u5f15\u7528\u4ea4\u7ed9\u7ebf\u7a0b，\u5c31\u5fc5\u987b\u8003\u8651\u53d8\u91cf\u4f55\u65f6\u9500\u6bc1\u6216\u88ab\u4e0b\u4e00\u8f6e\u8986\u76d6\u3002<\/p>\n

                  \u4e94\u3001\u670d\u52a1\u5668\u91cd\u542f\u4e3a\u4ec0\u4e48\u53ef\u80fd bind \u5931\u8d25<\/h2>\n

                  5.1 TCP \u8fde\u63a5\u5173\u95ed\u540e\u8fd8\u6709\u72b6\u6001<\/h3>\n

                  \u6d4b\u8bd5\u65f6\u7ecf\u5e38\u51fa\u73b0\u4e00\u4e2a\u73b0\u8c61：\u5173\u95ed\u670d\u52a1\u5668\u4ee5\u540e\u7acb\u523b\u91cd\u542f，bind \u62a5\u201cAddress already in use\u201d\u3002\u8fd9\u4e0d\u4e00\u5b9a\u8868\u793a\u65e7\u8fdb\u7a0b\u4ecd\u7136\u5b58\u5728，\u4e5f\u53ef\u80fd\u662f TCP \u8fde\u63a5\u5173\u95ed\u540e\u4ecd\u5904\u4e8e TIME_WAIT \u7b49\u72b6\u6001\u3002<\/p>\n

                  TCP \u8981\u4fdd\u8bc1\u8fdf\u5230\u62a5\u6587\u4e0d\u4f1a\u6c61\u67d3\u540e\u7eed\u65b0\u8fde\u63a5，\u56e0\u6b64\u8fde\u63a5\u5173\u95ed\u540e，\u76f8\u5173\u56db\u5143\u7ec4\u4e0d\u4f1a\u9a6c\u4e0a\u4ece\u7cfb\u7edf\u4e2d\u5f7b\u5e95\u6d88\u5931\u3002<\/p>\n

                  5.2 SO_REUSEADDR<\/h3>\n

                  \u76d1\u542c Socket \u521b\u5efa\u4ee5\u540e\u3001bind \u4ee5\u524d，\u53ef\u4ee5\u8bbe\u7f6e：<\/p>\n

                  int<\/span> enable =<\/span> 1<\/span>;<\/span>
                  \nsetsockopt<\/span>(<\/span>listen_sock,<\/span>
                  \n SOL_SOCKET,<\/span>
                  \n SO_REUSEADDR,<\/span>
                  \n &<\/span>enable,<\/span>
                  \n sizeof<\/span>(<\/span>enable)<\/span>)<\/span>;<\/span><\/p>\n

                  \u5b83\u5141\u8bb8\u670d\u52a1\u5668\u5728\u7b26\u5408\u6761\u4ef6\u65f6\u66f4\u5feb\u5730\u91cd\u65b0\u7ed1\u5b9a\u672c\u5730\u5730\u5740，\u5e38\u7528\u4e8e\u670d\u52a1\u91cd\u542f\u3002<\/p>\n

                  SO_REUSEADDR \u4e0d\u662f\u201c\u5141\u8bb8\u4efb\u4f55\u4e24\u4e2a\u8fdb\u7a0b\u968f\u4fbf\u7ed1\u5b9a\u540c\u4e00\u7aef\u53e3\u201d，\u4e5f\u4e0d\u80fd\u89e3\u51b3\u4ecd\u6709\u53e6\u4e00\u4e2a\u6b63\u5e38\u76d1\u542c\u8fdb\u7a0b\u5360\u7528\u7aef\u53e3\u7684\u60c5\u51b5\u3002<\/p>\n

                  5.3 \u4e0d\u8981\u628a\u9009\u9879\u5199\u6210\u6309\u4f4d\u6216\u7684\u540d\u79f0<\/h3>\n

                  \u6709\u4e9b\u4ee3\u7801\u4f1a\u5199：<\/p>\n

                  SO_REUSEADDR |<\/span> SO_REUSEPORT<\/p>\n

                  \u4f5c\u4e3a setsockopt \u7684\u5355\u4e2a\u9009\u9879\u540d\u3002\u8fd9\u79cd\u5199\u6cd5\u4e0d\u6e05\u6670，\u4e5f\u4e0d\u5177\u5907\u901a\u7528\u542b\u4e49\u3002\u9700\u8981\u4e24\u4e2a\u9009\u9879\u65f6，\u5e94\u5206\u522b\u8c03\u7528\u4e24\u6b21 setsockopt：<\/p>\n

                  setsockopt<\/span>(<\/span>fd,<\/span> SOL_SOCKET,<\/span> SO_REUSEADDR,<\/span> &<\/span>enable,<\/span> sizeof<\/span>(<\/span>enable)<\/span>)<\/span>;<\/span>
                  \nsetsockopt<\/span>(<\/span>fd,<\/span> SOL_SOCKET,<\/span> SO_REUSEPORT,<\/span> &<\/span>enable,<\/span> sizeof<\/span>(<\/span>enable)<\/span>)<\/span>;<\/span><\/p>\n

                  \u5f53\u524d Echo Server \u53ea\u8bbe\u7f6e SO_REUSEADDR \u5373\u53ef\u3002SO_REUSEPORT \u66f4\u504f\u5411\u591a\u4e2a Socket \u5171\u540c\u76d1\u542c\u540c\u4e00\u7aef\u53e3\u53ca\u8d1f\u8f7d\u5206\u914d\u573a\u666f，\u4e0d\u8981\u56e0\u4e3a\u540d\u5b57\u76f8\u8fd1\u5c31\u9ed8\u8ba4\u4e00\u8d77\u6253\u5f00\u3002<\/p>\n

                  \u516d\u3001\u591a\u8fdb\u7a0b\u6a21\u578b\u9002\u5408\u4ec0\u4e48\u573a\u666f<\/h2>\n

                  \u591a\u8fdb\u7a0b\u7684\u4f18\u70b9\u662f\u9694\u79bb\u6027\u5f3a\u3002\u67d0\u4e2a\u670d\u52a1\u8fdb\u7a0b\u5d29\u6e83，\u901a\u5e38\u4e0d\u4f1a\u76f4\u63a5\u7834\u574f\u5176\u4ed6\u8fde\u63a5；\u6bcf\u4e2a\u8fdb\u7a0b\u8fd8\u6709\u72ec\u7acb\u5730\u5740\u7a7a\u95f4，\u4e1a\u52a1\u4ee3\u7801\u76f8\u4e92\u5f71\u54cd\u8f83\u5c0f\u3002<\/p>\n

                  \u7f3a\u70b9\u4e5f\u660e\u663e：<\/p>\n

                    \n
                  • \u521b\u5efa\u8fdb\u7a0b\u6bd4\u521b\u5efa\u666e\u901a\u4efb\u52a1\u66f4\u91cd；<\/li>\n
                  • \u5730\u5740\u7a7a\u95f4\u72ec\u7acb，\u8fdb\u7a0b\u95f4\u5171\u4eab\u6570\u636e\u9700\u8981\u989d\u5916 IPC；<\/li>\n
                  • \u5ba2\u6237\u7aef\u5f88\u591a\u65f6，\u8fdb\u7a0b\u6570\u91cf\u4f1a\u5feb\u901f\u589e\u957f；<\/li>\n
                  • \u8c03\u5ea6\u548c\u5185\u5b58\u6210\u672c\u66f4\u9ad8\u3002<\/li>\n<\/ul>\n

                    \u5b66\u4e60 TCP \u65f6，\u591a\u8fdb\u7a0b\u6a21\u578b\u975e\u5e38\u9002\u5408\u89c2\u5bdf\u6587\u4ef6\u63cf\u8ff0\u7b26\u7ee7\u627f\u548c\u5e76\u53d1\u670d\u52a1\u539f\u7406\u3002\u771f\u5b9e\u9879\u76ee\u662f\u5426\u91c7\u7528，\u8fd8\u8981\u7ed3\u5408\u8fde\u63a5\u6570\u91cf\u3001\u4efb\u52a1\u65f6\u957f\u548c\u9694\u79bb\u9700\u6c42\u5224\u65ad\u3002<\/p>\n

                    \u4e03\u3001\u5bb9\u6613\u5199\u9519\u7684\u5730\u65b9<\/h2>\n

                    7.1 \u7236\u8fdb\u7a0b\u5fd8\u8bb0\u5173\u95ed sockfd<\/h3>\n

                    \u4f1a\u9020\u6210\u6587\u4ef6\u63cf\u8ff0\u7b26\u6cc4\u6f0f，\u5e76\u8ba9\u8fde\u63a5\u5bf9\u8c61\u957f\u671f\u4fdd\u7559\u989d\u5916\u5f15\u7528\u3002<\/p>\n

                    7.2 \u5b50\u8fdb\u7a0b\u5fd8\u8bb0\u5173\u95ed listen_sock<\/h3>\n

                    \u5b50\u8fdb\u7a0b\u5e76\u4e0d\u8d1f\u8d23\u63a5\u6536\u65b0\u8fde\u63a5，\u4fdd\u7559\u76d1\u542c fd \u53ea\u4f1a\u589e\u52a0\u65e0\u610f\u4e49\u5f15\u7528，\u8fd8\u53ef\u80fd\u8ba9\u670d\u52a1\u5668\u9000\u51fa\u548c\u7aef\u53e3\u91ca\u653e\u884c\u4e3a\u66f4\u96be\u5224\u65ad\u3002<\/p>\n

                    7.3 \u7236\u8fdb\u7a0b\u963b\u585e\u7b49\u5f85\u771f\u6b63\u5e72\u6d3b\u7684\u5b50\u8fdb\u7a0b<\/h3>\n

                    \u8fd9\u6837\u867d\u7136\u4e0d\u4f1a\u4ea7\u751f\u50f5\u5c38，\u4f46\u7236\u8fdb\u7a0b\u4f1a\u4e00\u76f4\u7b49\u5230\u5ba2\u6237\u7aef\u9000\u51fa，\u5931\u53bb\u5e76\u53d1\u6548\u679c\u3002\u53cc\u91cd fork \u4e2d，\u7236\u8fdb\u7a0b\u53ea\u7b49\u5f85\u7acb\u5373\u9000\u51fa\u7684\u4e2d\u95f4\u5b50\u8fdb\u7a0b\u3002<\/p>\n

                    7.4 fork \u5931\u8d25\u540e\u6ca1\u6709\u5173\u95ed\u901a\u4fe1 fd<\/h3>\n

                    \u8fdb\u7a0b\u521b\u5efa\u5931\u8d25\u65f6，\u8fd9\u6761\u8fde\u63a5\u5df2\u7ecf\u88ab accept \u53d6\u51fa\u3002\u82e5\u4e0d\u5173\u95ed sockfd，\u540c\u6837\u4f1a\u6cc4\u6f0f\u3002<\/p>\n

                    7.5 \u6df7\u6dc6\u6587\u4ef6\u63cf\u8ff0\u7b26\u548c\u5185\u6838\u5bf9\u8c61<\/h3>\n

                    \u7236\u5b50\u8fdb\u7a0b\u4e2d\u7684 fd \u6570\u5b57\u53ef\u80fd\u76f8\u540c，\u4f46\u201c\u5173\u95ed\u67d0\u4e2a fd\u201d\u53ea\u5f71\u54cd\u5f53\u524d\u8fdb\u7a0b\u7684\u63cf\u8ff0\u7b26\u8868\u9879\u3002\u5185\u6838\u5bf9\u8c61\u4f55\u65f6\u91ca\u653e，\u7531\u5168\u90e8\u5f15\u7528\u5171\u540c\u51b3\u5b9a\u3002<\/p>\n

                    \u603b\u7ed3<\/h2>\n

                    \u672c\u6587\u628a\u5355\u8fdb\u7a0b TCP \u670d\u52a1\u5668\u6539\u9020\u6210\u4e86\u591a\u8fdb\u7a0b\u7248\u672c：<\/p>\n

                  • \u4e3b\u8fdb\u7a0b\u53ea\u8d1f\u8d23 accept，\u5b59\u5b50\u8fdb\u7a0b\u8d1f\u8d23\u8fde\u63a5\u670d\u52a1；<\/li>\n
                  • \u5b50\u8fdb\u7a0b\u7ee7\u627f\u76d1\u542c fd \u548c\u901a\u4fe1 fd，\u5fc5\u987b\u5173\u95ed\u81ea\u5df1\u4e0d\u9700\u8981\u7684\u90a3\u4e00\u4efd；<\/li>\n
                  • \u7236\u8fdb\u7a0b\u4e5f\u8981\u5173\u95ed\u901a\u4fe1 fd，\u9632\u6b62\u5f15\u7528\u548c\u63cf\u8ff0\u7b26\u6cc4\u6f0f；<\/li>\n
                  • \u5355\u6b21 fork \u540e\u9700\u8981\u5904\u7406\u50f5\u5c38\u8fdb\u7a0b；<\/li>\n
                  • \u53cc\u91cd fork \u8ba9\u771f\u6b63\u5de5\u4f5c\u7684\u5b59\u5b50\u8fdb\u7a0b\u7531\u7cfb\u7edf\u63a5\u7ba1；<\/li>\n
                  • SO_REUSEADDR \u53ef\u4ee5\u6539\u5584\u670d\u52a1\u5668\u91cd\u542f\u65f6\u7684\u5730\u5740\u590d\u7528\u95ee\u9898\u3002<\/li>\n

                    \u4e0b\u4e00\u7bc7\u7ee7\u7eed\u628a\u8fdb\u7a0b\u5207\u6362\u6210\u7ebf\u7a0b，\u5206\u6790\u7ebf\u7a0b\u4e3a\u4ec0\u4e48\u4e0d\u80fd\u968f\u610f\u5173\u95ed\u5171\u4eab fd，\u5e76\u5728\u591a\u7ebf\u7a0b TCP \u670d\u52a1\u5668\u4e0a\u5b9e\u73b0\u53d7\u9650\u8fdc\u7a0b\u547d\u4ee4\u6267\u884c\u3002<\/p>\n

                    \u5f80\u671f\u535a\u5ba2\u5206\u4eab \u3010Linux\u7f51\u7edc\u3011UDP \u7a0b\u5e8f\u600e\u4e48\u7ee7\u7eed\u5c01\u88c5？\u4ece UdpSocket\u3001\u56de\u8c03\u5230\u7f51\u7edc\u5b57\u5178\u670d\u52a1\u5668 \u3010Linux\u7f51\u7edc\u3011UDP \u804a\u5929\u5ba4\u600e\u4e48\u5b9e\u73b0？\u4ece\u5728\u7ebf\u7528\u6237\u7ba1\u7406\u3001\u6d88\u606f\u5e7f\u64ad\u5230\u53cc\u7ebf\u7a0b\u6536\u53d1\u4e0e\u7ebf\u7a0b\u6c60 \u3010Linux\u7f51\u7edc\u3011TCP \u670d\u52a1\u5668\u600e\u4e48\u5199？\u4ece listen\u3001accept \u5230 read\/write，\u624b\u5199\u5b8c\u6574 Echo Server<\/p>\n","protected":false},"excerpt":{"rendered":"

                    🔥\u4e2a\u4eba\u4e3b\u9875：\u7231\u548c\u51b0\u9614\u4e50 📚\u4e13\u680f\u4f20\u9001\u95e8：\u300a\u6570\u636e\u7ed3\u6784\u4e0e\u7b97\u6cd5\u300b \u3001C\u3001 \u300aLinux\u64cd\u4f5c\u7cfb\u7edf\u300b 🐶\u5b66\u4e60\u65b9\u5411：C\u65b9\u5411\u5b66\u4e60\u7231\u597d\u8005 \u2b50\u4eba\u751f\u683c\u8a00：\u5f97\u77e5\u5766\u7136 ，\u5931\u4e4b\u6de1\u7136 🏠\u535a\u4e3b\u7b80\u4ecb \u6587\u7ae0\u76ee\u5f55\u524d\u8a00\u4e00\u3001\u5355\u8fdb\u7a0b\u670d\u52a1\u5668\u4e3a\u4ec0\u4e48\u4e0d\u80fd\u5e76\u53d1\u4e8c\u3001fork \u540e\u8c01\u80fd\u770b\u5230\u54ea\u4e9b\u6587\u4ef6\u63cf\u8ff0\u7b262.1 \u5b50\u8fdb\u7a0b\u7ee7\u627f\u7236\u8fdb\u7a0b\u7684\u63cf\u8ff0\u7b26\u88682.2 \u4e0d\u9700\u8981\u7684\u63cf\u8ff0\u7b26\u5fc5\u987b\u5173\u95ed2.3 \u4e3a\u4ec0\u4e48\u7236\u8fdb\u7a0b\u5fc5\u987b\u5173\u95ed\u901a\u4fe1<\/p>\n","protected":false},"author":2,"featured_media":123020,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[11820,58,43,78,44],"topic":[],"class_list":["post-123023","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-atomgit","tag-linux","tag-43","tag-78","tag-44"],"yoast_head":"\n\u3010Linux\u7f51\u7edc\u3011TCP \u670d\u52a1\u5668\u5982\u4f55\u5e76\u53d1\u5904\u7406\u591a\u4e2a\u5ba2\u6237\u7aef\uff1f\u4ece fork\u3001\u50f5\u5c38\u8fdb\u7a0b\u5230\u53cc\u91cd fork - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/123023.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u3010Linux\u7f51\u7edc\u3011TCP \u670d\u52a1\u5668\u5982\u4f55\u5e76\u53d1\u5904\u7406\u591a\u4e2a\u5ba2\u6237\u7aef\uff1f\u4ece fork\u3001\u50f5\u5c38\u8fdb\u7a0b\u5230\u53cc\u91cd fork - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"🔥\u4e2a\u4eba\u4e3b\u9875：\u7231\u548c\u51b0\u9614\u4e50 📚\u4e13\u680f\u4f20\u9001\u95e8：\u300a\u6570\u636e\u7ed3\u6784\u4e0e\u7b97\u6cd5\u300b \u3001C\u3001 \u300aLinux\u64cd\u4f5c\u7cfb\u7edf\u300b 🐶\u5b66\u4e60\u65b9\u5411：C\u65b9\u5411\u5b66\u4e60\u7231\u597d\u8005 \u2b50\u4eba\u751f\u683c\u8a00：\u5f97\u77e5\u5766\u7136 ，\u5931\u4e4b\u6de1\u7136 🏠\u535a\u4e3b\u7b80\u4ecb \u6587\u7ae0\u76ee\u5f55\u524d\u8a00\u4e00\u3001\u5355\u8fdb\u7a0b\u670d\u52a1\u5668\u4e3a\u4ec0\u4e48\u4e0d\u80fd\u5e76\u53d1\u4e8c\u3001fork \u540e\u8c01\u80fd\u770b\u5230\u54ea\u4e9b\u6587\u4ef6\u63cf\u8ff0\u7b262.1 \u5b50\u8fdb\u7a0b\u7ee7\u627f\u7236\u8fdb\u7a0b\u7684\u63cf\u8ff0\u7b26\u88682.2 \u4e0d\u9700\u8981\u7684\u63cf\u8ff0\u7b26\u5fc5\u987b\u5173\u95ed2.3 \u4e3a\u4ec0\u4e48\u7236\u8fdb\u7a0b\u5fc5\u987b\u5173\u95ed\u901a\u4fe1\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.wsisp.com\/helps\/123023.html\" \/>\n<meta property=\"og:site_name\" content=\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"article:published_time\" content=\"2026-11-06T00:18:32+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/11\/20261106001831-6aed1cd7551c2.png\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/123023.html\",\"url\":\"https:\/\/www.wsisp.com\/helps\/123023.html\",\"name\":\"\u3010Linux\u7f51\u7edc\u3011TCP \u670d\u52a1\u5668\u5982\u4f55\u5e76\u53d1\u5904\u7406\u591a\u4e2a\u5ba2\u6237\u7aef\uff1f\u4ece fork\u3001\u50f5\u5c38\u8fdb\u7a0b\u5230\u53cc\u91cd fork - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\",\"isPartOf\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/#website\"},\"datePublished\":\"2026-11-06T00:18:32+00:00\",\"dateModified\":\"2026-11-06T00:18:32+00:00\",\"author\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41\"},\"breadcrumb\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/123023.html#breadcrumb\"},\"inLanguage\":\"zh-Hans\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.wsisp.com\/helps\/123023.html\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/123023.html#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/www.wsisp.com\/helps\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"\u3010Linux\u7f51\u7edc\u3011TCP \u670d\u52a1\u5668\u5982\u4f55\u5e76\u53d1\u5904\u7406\u591a\u4e2a\u5ba2\u6237\u7aef\uff1f\u4ece fork\u3001\u50f5\u5c38\u8fdb\u7a0b\u5230\u53cc\u91cd fork\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#website\",\"url\":\"https:\/\/www.wsisp.com\/helps\/\",\"name\":\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\",\"description\":\"\u9999\u6e2f\u670d\u52a1\u5668_\u9999\u6e2f\u4e91\u670d\u52a1\u5668\u8d44\u8baf_\u670d\u52a1\u5668\u5e2e\u52a9\u6587\u6863_\u670d\u52a1\u5668\u6559\u7a0b\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.wsisp.com\/helps\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"zh-Hans\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41\",\"name\":\"admin\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery\",\"contentUrl\":\"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery\",\"caption\":\"admin\"},\"sameAs\":[\"http:\/\/wp.wsisp.com\"],\"url\":\"https:\/\/www.wsisp.com\/helps\/author\/admin\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"\u3010Linux\u7f51\u7edc\u3011TCP \u670d\u52a1\u5668\u5982\u4f55\u5e76\u53d1\u5904\u7406\u591a\u4e2a\u5ba2\u6237\u7aef\uff1f\u4ece fork\u3001\u50f5\u5c38\u8fdb\u7a0b\u5230\u53cc\u91cd fork - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.wsisp.com\/helps\/123023.html","og_locale":"zh_CN","og_type":"article","og_title":"\u3010Linux\u7f51\u7edc\u3011TCP \u670d\u52a1\u5668\u5982\u4f55\u5e76\u53d1\u5904\u7406\u591a\u4e2a\u5ba2\u6237\u7aef\uff1f\u4ece fork\u3001\u50f5\u5c38\u8fdb\u7a0b\u5230\u53cc\u91cd fork - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","og_description":"🔥\u4e2a\u4eba\u4e3b\u9875：\u7231\u548c\u51b0\u9614\u4e50 📚\u4e13\u680f\u4f20\u9001\u95e8：\u300a\u6570\u636e\u7ed3\u6784\u4e0e\u7b97\u6cd5\u300b \u3001C\u3001 \u300aLinux\u64cd\u4f5c\u7cfb\u7edf\u300b 🐶\u5b66\u4e60\u65b9\u5411：C\u65b9\u5411\u5b66\u4e60\u7231\u597d\u8005 \u2b50\u4eba\u751f\u683c\u8a00：\u5f97\u77e5\u5766\u7136 ，\u5931\u4e4b\u6de1\u7136 🏠\u535a\u4e3b\u7b80\u4ecb \u6587\u7ae0\u76ee\u5f55\u524d\u8a00\u4e00\u3001\u5355\u8fdb\u7a0b\u670d\u52a1\u5668\u4e3a\u4ec0\u4e48\u4e0d\u80fd\u5e76\u53d1\u4e8c\u3001fork \u540e\u8c01\u80fd\u770b\u5230\u54ea\u4e9b\u6587\u4ef6\u63cf\u8ff0\u7b262.1 \u5b50\u8fdb\u7a0b\u7ee7\u627f\u7236\u8fdb\u7a0b\u7684\u63cf\u8ff0\u7b26\u88682.2 \u4e0d\u9700\u8981\u7684\u63cf\u8ff0\u7b26\u5fc5\u987b\u5173\u95ed2.3 \u4e3a\u4ec0\u4e48\u7236\u8fdb\u7a0b\u5fc5\u987b\u5173\u95ed\u901a\u4fe1","og_url":"https:\/\/www.wsisp.com\/helps\/123023.html","og_site_name":"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","article_published_time":"2026-11-06T00:18:32+00:00","og_image":[{"url":"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/11\/20261106001831-6aed1cd7551c2.png"}],"author":"admin","twitter_card":"summary_large_image","twitter_misc":{"\u4f5c\u8005":"admin","\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4":"5 \u5206"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.wsisp.com\/helps\/123023.html","url":"https:\/\/www.wsisp.com\/helps\/123023.html","name":"\u3010Linux\u7f51\u7edc\u3011TCP \u670d\u52a1\u5668\u5982\u4f55\u5e76\u53d1\u5904\u7406\u591a\u4e2a\u5ba2\u6237\u7aef\uff1f\u4ece fork\u3001\u50f5\u5c38\u8fdb\u7a0b\u5230\u53cc\u91cd fork - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","isPartOf":{"@id":"https:\/\/www.wsisp.com\/helps\/#website"},"datePublished":"2026-11-06T00:18:32+00:00","dateModified":"2026-11-06T00:18:32+00:00","author":{"@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41"},"breadcrumb":{"@id":"https:\/\/www.wsisp.com\/helps\/123023.html#breadcrumb"},"inLanguage":"zh-Hans","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.wsisp.com\/helps\/123023.html"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.wsisp.com\/helps\/123023.html#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/www.wsisp.com\/helps"},{"@type":"ListItem","position":2,"name":"\u3010Linux\u7f51\u7edc\u3011TCP \u670d\u52a1\u5668\u5982\u4f55\u5e76\u53d1\u5904\u7406\u591a\u4e2a\u5ba2\u6237\u7aef\uff1f\u4ece fork\u3001\u50f5\u5c38\u8fdb\u7a0b\u5230\u53cc\u91cd fork"}]},{"@type":"WebSite","@id":"https:\/\/www.wsisp.com\/helps\/#website","url":"https:\/\/www.wsisp.com\/helps\/","name":"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","description":"\u9999\u6e2f\u670d\u52a1\u5668_\u9999\u6e2f\u4e91\u670d\u52a1\u5668\u8d44\u8baf_\u670d\u52a1\u5668\u5e2e\u52a9\u6587\u6863_\u670d\u52a1\u5668\u6559\u7a0b","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.wsisp.com\/helps\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"zh-Hans"},{"@type":"Person","@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41","name":"admin","image":{"@type":"ImageObject","inLanguage":"zh-Hans","@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/image\/","url":"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery","contentUrl":"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery","caption":"admin"},"sameAs":["http:\/\/wp.wsisp.com"],"url":"https:\/\/www.wsisp.com\/helps\/author\/admin"}]}},"_links":{"self":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts\/123023","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/comments?post=123023"}],"version-history":[{"count":0,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts\/123023\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/media\/123020"}],"wp:attachment":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/media?parent=123023"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/categories?post=123023"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/tags?post=123023"},{"taxonomy":"topic","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/topic?post=123023"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}