{"id":40083,"date":"2025-05-27T10:46:29","date_gmt":"2025-05-27T02:46:29","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/40083.html"},"modified":"2025-05-27T10:46:29","modified_gmt":"2025-05-27T02:46:29","slug":"%e7%bd%91%e7%bb%9cio%e4%b8%8etcp%e6%9c%8d%e5%8a%a1%e5%99%a8","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/40083.html","title":{"rendered":"\u7f51\u7edcio\u4e0etcp\u670d\u52a1\u5668"},"content":{"rendered":"

\n

\u7f51\u7edcio\u4e0etcp\u670d\u52a1\u5668<\/font>
\n <\/h2>\n

\u4e00\u3001\u7f51\u7edcIO\u4e0e\u9879\u76ee\u7b80\u4ecb<\/h3>\n

1.\u7f51\u7edcIO<\/h4>\n

\u672c\u6587\u4e3b\u8981\u5728linux\u4e0a\u7528c\u8bed\u8a00\u5b9e\u73b0\u4e00\u4e2atcp server，\u5728\u8fd9\u4e2a\u573a\u666f\u4e0b\u53ef\u4ee5\u628a\u7f51\u7edcIO \u7406\u89e3\u4e3a\u5ba2\u6237\u7aef\u4e0e\u670d\u52a1\u5668\u4e4b\u95f4\u901a\u4fe1\u7684\u901a\u9053\u3002\u9002\u7528\u573a\u666f\u6bd4\u5982：<\/p>\n

    \n
  • \u5404\u79cd\u5373\u4f7f\u901a\u8baf\u8f6f\u4ef6，\u4f8b\u5982\u5fae\u4fe1<\/li>\n
  • \u5237\u6296\u97f3\u77ed\u89c6\u9891<\/li>\n
  • github\/gitlab \u4e0a git clone<\/li>\n<\/ul>\n

    2.tcp server \u9879\u76ee\u7b80\u4ecb<\/h4>\n

    \u672c\u6587\u4e3b\u8981\u901a\u8fc7\u5b9e\u73b0\u4e00\u4e2atcp server\u6765\u5b66\u4e60\u7f51\u7edc\u7f16\u7a0b\u7684\u77e5\u8bc6，\u670d\u52a1\u5668\u57fa\u672c\u7ed3\u6784\u5982\u4e0b： \"\u56fe\u7247\u66ff\u4ee3\u6587\u5b57\"<\/p>\n

      \n
    • listen \u76d1\u542c\u5957\u63a5\u5b57：\u76d1\u542c\u662f\u5426\u6709\u65b0\u7684\u5ba2\u6237\u7aef\u8bf7\u6c42，\u6709\u5219\u521b\u5efa\u4e00\u4e2a\u65b0\u7684tcp\u8fde\u63a5\u4e0eclientfd<\/li>\n
    • tcp\u8fde\u63a5：listen\u6536\u5230\u65b0\u7684\u5ba2\u6237\u7aef\u8bf7\u6c42\u540e\u4e3a\u8be5\u5ba2\u6237\u7aef\u521b\u5efa\u4e00\u4e2atcp\u8fde\u63a5<\/li>\n
    • clientfd \u5ba2\u6237\u7aef\u6587\u4ef6\u63cf\u8ff0\u7b26：\u521b\u5efatcp\u8fde\u63a5\u540e\u901a\u8fc7accept\u51fd\u6570\u4e3a\u8be5\u8fde\u63a5\u521b\u5efa\u4e00\u4e2a\u63cf\u8ff0\u7b26，\u670d\u52a1\u5668\u901a\u8fc7\u8be5\u63cf\u8ff0\u7b26\u6765\u6807\u8bc6\u8fd9\u4e2atcp\u8fde\u63a5\u4ee5\u4fbf\u4e8e\u4e0e\u5ba2\u6237\u7aef\u8fdb\u884c\u901a\u4fe1\u3002<\/li>\n<\/ul>\n

      \u4e8c\u3001\u4ee3\u7801\u5b9e\u73b0<\/h3>\n

      1.\u670d\u52a1\u5668\u521b\u5efa<\/h4>\n

      \/\/\u521b\u5efa\u670d\u52a1\u5668\u76d1\u542c\u5957\u63a5\u5b57<\/span>
      \n int<\/span> sockfd =<\/span> socket<\/span>(<\/span>AF_INET,<\/span> SOCK_STREAM,<\/span> 0<\/span>)<\/span>;<\/span><\/p>\n

      \/\/\u670d\u52a1\u5668\u5730\u5740<\/span>
      \n struct<\/span> sockaddr_in<\/span> servaddr;<\/span>
      \n servaddr.<\/span>sin_family =<\/span> AF_INET;<\/span>
      \n servaddr.<\/span>sin_addr.<\/span>s_addr =<\/span> htons<\/span>(<\/span>INADDR_ANY)<\/span>;<\/span>\/\/0.0.0.0:\u672c\u673a\u4efb\u610f\u4e00\u5757\u7f51\u5361\u90fd\u53ef\u4ee5<\/span>
      \n servaddr.<\/span>sin_port =<\/span> htons<\/span>(<\/span>8888<\/span>)<\/span>;<\/span>\/\/0-1023\u4e3a\u7cfb\u7edf\u9ed8\u8ba4\u7684，\u5927\u4e8e1023\u7684\u53ef\u81ea\u5b9a\u4e49<\/span><\/p>\n

      \/\/\u5c06\u76d1\u542c\u5957\u63a5\u5b57\u4e0e\u670d\u52a1\u5668\u5730\u5740\u7ed1\u5b9a<\/span>
      \n if<\/span>(<\/span>–<\/span>1<\/span> ==<\/span> bind<\/span>(<\/span>sockfd,<\/span> (<\/span>struct<\/span> sockaddr<\/span>*<\/span>)<\/span>&<\/span>servaddr,<\/span> sizeof<\/span>(<\/span>struct<\/span> sockaddr<\/span>)<\/span>)<\/span>)<\/span>{<\/span>
      \n printf<\/span>(<\/span>"bind failed: %s\\\\n"<\/span>,<\/span>strerror<\/span>(<\/span>errno)<\/span>)<\/span>;<\/span>
      \n }<\/span><\/p>\n

      \/\/\u5f00\u59cb\u76d1\u542c<\/span>
      \n listen<\/span>(<\/span>sockfd,<\/span> 10<\/span>)<\/span>;<\/span><\/p>\n

      \u9996\u5148\u521b\u5efa\u4e00\u4e2a\u76d1\u542c\u5957\u63a5\u5b57socket，sockfd\u5373\u4e3a\u8fd9\u4e2a\u5957\u63a5\u5b57\u7684\u63cf\u8ff0\u7b26\u3002\u7136\u540e\u8bbe\u7f6e\u670d\u52a1\u5668\u5730\u5740\u5e76\u5c06\u76d1\u542c\u5957\u63a5\u5b57\u4e0e\u8be5\u5730\u5740\u7ed1\u5b9a，\u6700\u540e\u8fdb\u5165\u76d1\u542c\u72b6\u6001，\u6b64\u65f6\u5df2\u7ecf\u53ef\u4ee5\u63a5\u6536\u5ba2\u6237\u7aef\u8bf7\u6c42，\u53ef\u67e5\u770b8888\u53f7\u7aef\u53e3\u5df2\u7ecf\u8fdb\u5165\u76d1\u542c\u72b6\u6001： \"1\"<\/p>\n

      2.\u4e0e\u5ba2\u6237\u7aef\u5efa\u7acb\u8fde\u63a5\u5e76\u901a\u4fe1<\/h4>\n

      \/\/\u5efa\u7acb\u4e0e\u5ba2\u6237\u7aef\u7684\u8fde\u63a5<\/span>
      \n struct<\/span> sockaddr_in<\/span> clientaddr;<\/span>
      \n socklen_t<\/span> len =<\/span> sizeof<\/span>(<\/span>clientaddr)<\/span>;<\/span><\/p>\n

      int<\/span> clientfd =<\/span> accept<\/span>(<\/span>sockfd,<\/span> (<\/span>struct<\/span> sockaddr<\/span>*<\/span>)<\/span>&<\/span>clientaddr,<\/span> &<\/span>len)<\/span>;<\/span>
      \n \/\/\u63a5\u6536\u6570\u636e<\/span>
      \n char<\/span> buffer[<\/span>1024<\/span>]<\/span>;<\/span>
      \n int<\/span> count =<\/span> recv<\/span>(<\/span>clientfd,<\/span> buffer,<\/span> 1024<\/span>,<\/span> 0<\/span>)<\/span>;<\/span>
      \n printf<\/span>(<\/span>"%s\\\\n"<\/span>,<\/span> buffer)<\/span>;<\/span>
      \n \/\/\u53d1\u9001\u4fe1\u606f<\/span>
      \n count =<\/span> send<\/span>(<\/span>clientfd,<\/span> buffer,<\/span> count,<\/span> 0<\/span>)<\/span>;<\/span><\/p>\n

      getchar<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

      return<\/span> 0<\/span>;<\/span><\/p>\n

      \u6b64\u65f6\u4e0e\u5ba2\u6237\u7aef\u5df2\u5efa\u7acb\u4e86tcp\u8fde\u63a5，\u5ba2\u6237\u7aef\u53ef\u4ee5\u4e0e\u670d\u52a1\u5668\u5efa\u7acb\u8fde\u63a5\u5e76\u6536\u53d1\u4fe1\u606f\u3002<\/p>\n

        \n
      • \u5efa\u7acb\u8fde\u63a5 \"1\"<\/li>\n
      • \u6536\u53d1\u4fe1\u606f \"1\"<\/li>\n<\/ul>\n

        \u4f46\u6b64\u65f6\u6211\u4eec\u53ea\u80fd\u4e0e\u4e00\u4e2a\u5ba2\u6237\u7aef\u8fdb\u884c\u901a\u4fe1，\u867d\u7136\u53ef\u4ee5\u548c\u53e6\u4e00\u4e2a\u5ba2\u6237\u7aef\u5efa\u7acbtcp\u8fde\u63a5，\u4f46\u7531\u4e8e\u53ea\u6709\u4e00\u4e2aclientfd，\u6240\u4ee5\u65e0\u6cd5\u4e0e\u53e6\u4e00\u4e2a\u5ba2\u6237\u7aef\u8fdb\u884c\u901a\u4fe1\u3002<\/p>\n

          \n
        • \u4e0e\u4e24\u4e2a\u5ba2\u6237\u7aef\u5efa\u7acbtcp\u8fde\u63a5 \"1\"<\/li>\n<\/ul>\n

          3.\u901a\u8fc7while\u5faa\u73af\u5b9e\u73b0\u4e0e\u591a\u4e2a\u5ba2\u6237\u7aef\u7684\u901a\u4fe1<\/h4>\n

          \u4e3a\u4e86\u89e3\u51b3\u4e0a\u8ff0\u95ee\u9898，\u8003\u8651\u6dfb\u52a0\u4e00\u4e2awhile\u5faa\u73af\u6765\u5b9e\u73b0\u4e0e\u591a\u4e2a\u5ba2\u6237\u7aef\u7684\u901a\u4fe1<\/p>\n

          \/\/\u5efa\u7acb\u4e0e\u5ba2\u6237\u7aef\u7684\u8fde\u63a5<\/span>
          \n struct<\/span> sockaddr_in<\/span> clientaddr;<\/span>
          \n socklen_t<\/span> len =<\/span> sizeof<\/span>(<\/span>clientaddr)<\/span>;<\/span><\/p>\n

          while<\/span>(<\/span>1<\/span>)<\/span>{<\/span><\/p>\n

          int<\/span> clientfd =<\/span> accept<\/span>(<\/span>sockfd,<\/span> (<\/span>struct<\/span> sockaddr<\/span>*<\/span>)<\/span>&<\/span>clientaddr,<\/span> &<\/span>len)<\/span>;<\/span><\/p>\n

          printf<\/span>(<\/span>"client connect\\\\n"<\/span>)<\/span>;<\/span>
          \n \/\/\u63a5\u6536\u6570\u636e<\/span>
          \n char<\/span> buffer[<\/span>1024<\/span>]<\/span>;<\/span>
          \n int<\/span> count =<\/span> recv<\/span>(<\/span>clientfd,<\/span> buffer,<\/span> 1024<\/span>,<\/span> 0<\/span>)<\/span>;<\/span>
          \n printf<\/span>(<\/span>"%s\\\\n"<\/span>,<\/span> buffer)<\/span>;<\/span>
          \n \/\/\u53d1\u9001\u4fe1\u606f<\/span>
          \n count =<\/span> send<\/span>(<\/span>clientfd,<\/span> buffer,<\/span> count,<\/span> 0<\/span>)<\/span>;<\/span><\/p>\n

          }<\/span><\/p>\n

          \u901a\u8fc7\u4e0a\u8ff0\u6539\u8fdb\u6539\u4ee3\u7801\u53ef\u901a\u8fc7\u5faa\u73af\u521b\u5efaclientfd\u6765\u5b9e\u73b0\u4e0e\u5ba2\u6237\u7aef\u7684\u901a\u4fe1，\u4f46\u4ecd\u6709\u4e00\u4e9b\u95ee\u9898\u3002\u6b64\u65f6\u8fde\u63a5\u4e86\u4e24\u4e2a\u5ba2\u6237\u7aef，\u53ef\u4ee5\u770b\u5230\u663e\u793a\u53ea\u6709\u4e00\u4e2aclient connect \"1\" \u8fd9\u662f\u56e0\u4e3a\u5728\u6267\u884c\u7b2c\u4e00\u4e2a\u5faa\u73af\u65f6\u4ee3\u7801\u963b\u585e\u5728\u4e86int count = recv(clientfd, buffer, 1024, 0);\u8fd9\u4e00\u884c，\u7531\u4e8e\u7b2c\u4e00\u4e2a\u5ba2\u6237\u7aef\u6ca1\u6709\u53d1\u9001\u4fe1\u606f\u7ebf\u7a0b\u5c31\u4e00\u76f4\u5728\u6b64\u5904\u7b49\u5f85\u63a5\u6536\u7b2c\u4e00\u4e2a\u5ba2\u6237\u7aef\u7684\u4fe1\u606f，\u65e0\u6cd5\u8fdb\u5165\u4e0b\u4e00\u4e2a\u5faa\u73af，\u4e0a\u4e00\u4e2a\u5ba2\u6237\u7aef\u53d1\u9001\u4fe1\u606f\u4e4b\u540e\u624d\u80fd\u4e0e\u4e0b\u4e00\u4e2a\u5ba2\u6237\u7aef\u8fdb\u884c\u901a\u4fe1\u3002<\/p>\n

          4.\u4e00\u8bf7\u6c42\u4e00\u7ebf\u7a0b<\/h4>\n

          \u4e3a\u4e86\u89e3\u51b3\u4e0a\u8ff0\u7ebf\u7a0b\u963b\u585e\u7684\u95ee\u9898，\u8003\u8651\u4e3a\u6bcf\u4e2a\u5ba2\u6237\u7aef\u90fd\u5efa\u7acb\u4e00\u4e2a\u7ebf\u7a0b\u4e13\u95e8\u4e3a\u5176\u670d\u52a1<\/p>\n

          \/\/\u5efa\u7acb\u4e0e\u5ba2\u6237\u7aef\u7684\u8fde\u63a5<\/span>
          \n struct<\/span> sockaddr_in<\/span> clientaddr;<\/span>
          \n socklen_t<\/span> len =<\/span> sizeof<\/span>(<\/span>clientaddr)<\/span>;<\/span><\/p>\n

          while<\/span>(<\/span>1<\/span>)<\/span>{<\/span><\/p>\n

          int<\/span> clientfd =<\/span> accept<\/span>(<\/span>sockfd,<\/span> (<\/span>struct<\/span> sockaddr<\/span>*<\/span>)<\/span>&<\/span>clientaddr,<\/span> &<\/span>len)<\/span>;<\/span><\/p>\n

          pthread_t<\/span> thid;<\/span>
          \n pthread_create<\/span>(<\/span>&<\/span>thid,<\/span> NULL<\/span>,<\/span> client_routine,<\/span> &<\/span>clientfd)<\/span>;<\/span>
          \n }<\/span><\/p>\n

          \/\/\u56de\u8c03\u51fd\u6570<\/span>
          \nvoid<\/span> *<\/span>client_routine<\/span>(<\/span>void<\/span> *<\/span>arg)<\/span>{<\/span><\/p>\n

          int<\/span> clientfd =<\/span> *<\/span>(<\/span>int<\/span> *<\/span>)<\/span>arg;<\/span><\/p>\n

          printf<\/span>(<\/span>"client connect\\\\n"<\/span>)<\/span>;<\/span>
          \n while<\/span>(<\/span>1<\/span>)<\/span>{<\/span>
          \n \/\/\u63a5\u6536\u6570\u636e<\/span>
          \n char<\/span> buffer[<\/span>1024<\/span>]<\/span>;<\/span>
          \n int<\/span> count =<\/span> recv<\/span>(<\/span>clientfd,<\/span> buffer,<\/span> 1024<\/span>,<\/span> 0<\/span>)<\/span>;<\/span>
          \n printf<\/span>(<\/span>"%s\\\\n"<\/span>,<\/span> buffer)<\/span>;<\/span><\/p>\n

          \/\/\u65ad\u5f00\u8fde\u63a5<\/span>
          \n if<\/span>(<\/span>count ==<\/span> 0<\/span>)<\/span>{<\/span>\/\/\u5ba2\u6237\u7aef\u65ad\u5f00\u65f6recv\u8fd4\u56de0<\/span>
          \n printf<\/span>(<\/span>"client disconnect: %d\\\\n"<\/span>,<\/span> clientfd)<\/span>;<\/span>
          \n close<\/span>(<\/span>clientfd)<\/span>;<\/span>
          \n break<\/span>;<\/span>
          \n }<\/span><\/p>\n

          \/\/\u53d1\u9001\u4fe1\u606f<\/span>
          \n count =<\/span> send<\/span>(<\/span>clientfd,<\/span> buffer,<\/span> count,<\/span> 0<\/span>)<\/span>;<\/span>
          \n )<\/span>
          \n}<\/span> <\/p>\n

          \u6b64\u65f6\u53ef\u505a\u5230\u4e0e\u6bcf\u4e2a\u5ba2\u6237\u7aef\u7684\u5373\u65f6\u901a\u8baf<\/p>\n

            \n
          • \u5206\u522b\u8fde\u63a5\u4e24\u4e2a\u5ba2\u6237\u7aef \"1\"<\/li>\n
          • \u4e0e\u4e24\u4e2a\u5ba2\u6237\u7aef\u901a\u4fe1 \"1\"<\/li>\n<\/ul>\n

            \u4e09\u3001\u6280\u672f\u603b\u7ed3<\/h3>\n

            \u6700\u540e\u867d\u7136\u901a\u8fc7\u4e00\u8bf7\u6c42\u4e00\u7ebf\u7a0b\u7684\u65b9\u5f0f\u5b9e\u73b0\u4e86\u5373\u65f6\u901a\u4fe1，\u4f46\u4e00\u8bf7\u6c42\u4e00\u7ebf\u7a0b\u7684\u65b9\u6848\u4f9d\u65e7\u6709\u5f88\u591a\u5f0a\u7aef：<\/p>\n

              \n
            • \u8d44\u6e90\u6d88\u8017\u5927<\/li>\n
            • \u7ebf\u7a0b\u5207\u6362\u8c03\u5ea6\u5f00\u9500\u5927<\/li>\n
            • \u53ef\u6269\u5c55\u6027\u53d7\u9650，\u96be\u4ee5\u5e94\u5bf9\u9ad8\u5e76\u53d1<\/li>\n
            • \u7ebf\u7a0b\u7ba1\u7406\u590d\u6742，\u6027\u80fd\u4e0d\u7a33\u5b9a，\u7ebf\u7a0b\u95f4\u4f1a\u76f8\u4e92\u5f71\u54cd \u8fd9\u4e9b\u95ee\u9898\u4f9d\u65e7\u6709\u5f85\u6539\u8fdb\u3002<\/li>\n<\/ul>\n
              \n

              \u6587\u7ae0\u53c2\u8003<\u96f6\u58f0\u6559\u80b2>\u7684C\/C++linux\u7cfb\u7edf\u6559\u7a0b\u5b66\u4e60:https:\/\/github.com\/0voice<\/p>\n","protected":false},"excerpt":{"rendered":"

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