{"id":91172,"date":"2026-08-07T07:48:52","date_gmt":"2026-08-06T23:48:52","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/91172.html"},"modified":"2026-08-07T07:48:52","modified_gmt":"2026-08-06T23:48:52","slug":"%e3%80%90linux%e3%80%91%e4%bb%8e%e5%8c%bf%e5%90%8d%e7%ae%a1%e9%81%93%e5%88%b0%e8%bf%9b%e7%a8%8b%e6%b1%a0%ef%bc%9a%e4%bb%bb%e5%8a%a1%e6%b4%be%e5%8f%91%e3%80%81fd-%e7%bb%a7%e6%89%bf-bug-%e4%b8%8e","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/91172.html","title":{"rendered":"\u3010Linux\u3011\u4ece\u533f\u540d\u7ba1\u9053\u5230\u8fdb\u7a0b\u6c60\uff1a\u4efb\u52a1\u6d3e\u53d1\u3001fd \u7ee7\u627f Bug \u4e0e\u5b8c\u6574\u5b9e\u73b0"},"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++ 🐶\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\u5148\u628a\u8fdb\u7a0b\u6c60\u6a21\u578b\u753b\u51fa\u6765<\/li>\n
  • \n
      \n
    • 1.1 \u4e3a\u4ec0\u4e48\u8981\u63d0\u524d\u521b\u5efa\u5b50\u8fdb\u7a0b<\/li>\n
    • 1.2 \u7236\u8fdb\u7a0b\u5230\u5e95\u7ed9\u5b50\u8fdb\u7a0b\u53d1\u4ec0\u4e48<\/li>\n<\/ul>\n<\/li>\n
    • \u4e8c\u3001\u4ee3\u7801\u600e\u4e48\u62c6<\/li>\n
    • \n
        \n
      • 2.1 `Task.hpp`：\u7ba1\u7406\u4efb\u52a1<\/li>\n
      • 2.2 `Channel.hpp`：\u63cf\u8ff0\u4e00\u6761\u901a\u4fe1\u4fe1\u9053<\/li>\n<\/ul>\n<\/li>\n
      • \u4e09\u3001`ProcessPool.hpp`：\u521b\u5efa\u3001\u6d3e\u53d1\u548c\u56de\u6536<\/li>\n
      • \u56db\u3001\u6700\u5bb9\u6613\u6f0f\u6389\u7684 Bug：\u5386\u53f2\u5199\u7aef\u7ee7\u627f<\/li>\n
      • \n
          \n
        • 4.1 Bug \u662f\u600e\u4e48\u51fa\u73b0\u7684<\/li>\n
        • 4.2 \u4fee\u590d\u65b9\u5f0f<\/li>\n<\/ul>\n<\/li>\n
        • \u4e94\u3001`main.cc`：\u628a\u6574\u4e2a\u6d41\u7a0b\u8dd1\u8d77\u6765<\/li>\n
        • \u603b\u7ed3<\/li>\n<\/ul>\n

          \u524d\u8a00<\/h2>\n

          \u4e0a\u7bc7\u5df2\u7ecf\u628a\u533f\u540d\u7ba1\u9053\u7684\u57fa\u672c\u89c4\u5219\u7406\u6e05\u4e86：\u7236\u8fdb\u7a0b\u5148\u8c03\u7528 pipe()，\u518d\u901a\u8fc7 fork() \u8ba9\u5b50\u8fdb\u7a0b\u7ee7\u627f\u5bf9\u540c\u4e00\u6761\u7ba1\u9053\u7684\u8bbf\u95ee\u5173\u7cfb\u3002<\/p>\n

          \u63a5\u4e0b\u6765\u628a\u4e00\u6761\u7ba1\u9053\u6269\u5c55\u6210\u591a\u6761：<\/p>\n

          \u7236\u8fdb\u7a0b
          \n \u251c\u2500\u2500 \u7ba1\u9053 1 \u2500\u2500 \u5b50\u8fdb\u7a0b 1
          \n \u251c\u2500\u2500 \u7ba1\u9053 2 \u2500\u2500 \u5b50\u8fdb\u7a0b 2
          \n \u251c\u2500\u2500 \u7ba1\u9053 3 \u2500\u2500 \u5b50\u8fdb\u7a0b 3
          \n \u2514\u2500\u2500 …<\/p>\n

          \u7236\u8fdb\u7a0b\u901a\u8fc7\u6bcf\u6761\u7ba1\u9053\u7684\u5199\u7aef\u53d1\u9001\u4efb\u52a1\u7801，\u5b50\u8fdb\u7a0b\u963b\u585e\u8bfb\u53d6\u5e76\u6267\u884c\u4efb\u52a1，\u8fd9\u5c31\u662f\u4e00\u4e2a\u6700\u5c0f\u7684\u8fdb\u7a0b\u6c60\u6a21\u578b\u3002<\/p>\n

          \u4ee3\u7801\u672c\u8eab\u4e0d\u7b97\u96be，\u771f\u6b63\u5bb9\u6613\u51fa\u9519\u7684\u662f fd \u7ee7\u627f<\/font>\u3002<\/p>\n

          \u5f53\u7236\u8fdb\u7a0b\u5728\u5faa\u73af\u4e2d\u4e0d\u65ad fork() \u65f6，\u540e\u521b\u5efa\u7684\u5b50\u8fdb\u7a0b\u4f1a\u628a\u7236\u8fdb\u7a0b\u5f53\u524d\u5df2\u7ecf\u6301\u6709\u7684\u5386\u53f2\u5199\u7aef\u4e00\u8d77\u7ee7\u627f\u4e0b\u6765\u3002\u5982\u679c\u8fd9\u4e9b\u5199\u7aef\u6ca1\u6709\u5173\u95ed，\u7236\u8fdb\u7a0b\u5373\u4f7f\u6267\u884c\u4e86 Stop()，\u67d0\u4e9b\u5b50\u8fdb\u7a0b\u4ecd\u7136\u53ef\u80fd\u6c38\u8fdc\u8bfb\u4e0d\u5230 EOF，\u6700\u540e\u628a waitpid() \u5361\u4f4f\u3002<\/p>\n

          \u8fd9\u7bc7\u5c31\u56f4\u7ed5\u8fd9\u4e2a\u5751，\u628a\u8fdb\u7a0b\u6c60\u7684\u8bbe\u8ba1\u3001\u4ee3\u7801\u548c\u9000\u51fa\u6d41\u7a0b\u5b8c\u6574\u8d70\u4e00\u904d\u3002<\/p>\n

          \n

          \u4e00\u3001\u5148\u628a\u8fdb\u7a0b\u6c60\u6a21\u578b\u753b\u51fa\u6765<\/h2>\n

          \u524d\u9762\u7684\u533f\u540d\u7ba1\u9053\u53ea\u6709\u4e00\u4e2a\u5b50\u8fdb\u7a0b\u3002<\/p>\n

          \u63a5\u4e0b\u6765\u628a\u573a\u666f\u6269\u5c55\u4e00\u4e0b：<\/p>\n

          \u7236\u8fdb\u7a0b
          \n \u251c\u2500\u2500 \u7ba1\u9053 1 \u2500\u2500 \u5b50\u8fdb\u7a0b 1
          \n \u251c\u2500\u2500 \u7ba1\u9053 2 \u2500\u2500 \u5b50\u8fdb\u7a0b 2
          \n \u251c\u2500\u2500 \u7ba1\u9053 3 \u2500\u2500 \u5b50\u8fdb\u7a0b 3
          \n \u251c\u2500\u2500 \u7ba1\u9053 4 \u2500\u2500 \u5b50\u8fdb\u7a0b 4
          \n \u2514\u2500\u2500 \u7ba1\u9053 5 \u2500\u2500 \u5b50\u8fdb\u7a0b 5<\/p>\n

          \u7236\u8fdb\u7a0b\u901a\u8fc7\u6bcf\u6761\u7ba1\u9053\u7684\u5199\u7aef\u7ed9\u5bf9\u5e94\u5b50\u8fdb\u7a0b\u53d1\u9001\u4efb\u52a1\u7801，\u5b50\u8fdb\u7a0b\u963b\u585e\u7b49\u5f85\u4efb\u52a1\u3002<\/p>\n

          1.1 \u4e3a\u4ec0\u4e48\u8981\u63d0\u524d\u521b\u5efa\u5b50\u8fdb\u7a0b<\/h3>\n

          \u4f20\u7edf\u65b9\u5f0f\u662f：<\/p>\n

          \u4efb\u52a1\u5230\u8fbe
          \n \u2193
          \nfork() \u521b\u5efa\u5b50\u8fdb\u7a0b
          \n \u2193
          \n\u6267\u884c\u4efb\u52a1
          \n \u2193
          \n\u5b50\u8fdb\u7a0b\u9000\u51fa<\/p>\n

          \u5982\u679c\u4efb\u52a1\u5f88\u591a，\u5c31\u9700\u8981\u9891\u7e41\u521b\u5efa\u548c\u9500\u6bc1\u8fdb\u7a0b\u3002<\/p>\n

          \u8fdb\u7a0b\u6c60\u7684\u601d\u8def\u662f：<\/p>\n

          \u7a0b\u5e8f\u542f\u52a8
          \n \u2193
          \n\u63d0\u524d\u521b\u5efa N \u4e2a\u5b50\u8fdb\u7a0b
          \n \u2193
          \n\u4efb\u52a1\u5230\u8fbe\u65f6\u6311\u9009\u4e00\u4e2a\u5b50\u8fdb\u7a0b
          \n \u2193
          \n\u5b50\u8fdb\u7a0b\u6267\u884c\u5b8c\u6210\u540e\u7ee7\u7eed\u7b49\u5f85\u4e0b\u4e00\u6b21\u4efb\u52a1<\/p>\n

          \u8fd9\u548c vector \u9884\u7559\u5bb9\u91cf\u7684\u6c60\u5316\u601d\u60f3\u7c7b\u4f3c：\u628a\u521b\u5efa\u8d44\u6e90\u7684\u6210\u672c\u63d0\u524d\u652f\u4ed8，\u540e\u9762\u53cd\u590d\u590d\u7528\u5df2\u7ecf\u5b58\u5728\u7684\u8d44\u6e90<\/font>\u3002<\/p>\n

          1.2 \u7236\u8fdb\u7a0b\u5230\u5e95\u7ed9\u5b50\u8fdb\u7a0b\u53d1\u4ec0\u4e48<\/h3>\n

          \u7236\u8fdb\u7a0b\u4e0d\u9700\u8981\u628a\u4e00\u6574\u4e2a\u51fd\u6570\u901a\u8fc7\u7ba1\u9053\u53d1\u9001\u7ed9\u5b50\u8fdb\u7a0b\u3002<\/p>\n

          \u7236\u5b50\u8fdb\u7a0b\u4f7f\u7528\u7684\u662f\u540c\u4e00\u4efd\u7a0b\u5e8f\u4ee3\u7801，\u6240\u4ee5\u53cc\u65b9\u53ef\u4ee5\u63d0\u524d\u7ea6\u5b9a：<\/p>\n

          \u4efb\u52a1\u7801 0 \u2192 \u6253\u5370\u65e5\u5fd7
          \n\u4efb\u52a1\u7801 1 \u2192 \u4e0b\u8f7d\u4efb\u52a1
          \n\u4efb\u52a1\u7801 2 \u2192 \u4e0a\u4f20\u4efb\u52a1<\/p>\n

          \u7236\u8fdb\u7a0b\u53ea\u9700\u8981\u5f80\u7ba1\u9053\u4e2d\u5199\u4e00\u4e2a int，\u5b50\u8fdb\u7a0b\u8bfb\u53d6\u540e\u518d\u4ece\u4efb\u52a1\u8868\u4e2d\u627e\u5230\u5bf9\u5e94\u51fd\u6570\u3002\u7ba1\u9053\u4f20\u7684\u662f\u4efb\u52a1\u7801，\u4e0d\u662f\u51fd\u6570\u672c\u8eab\u3002<\/font><\/p>\n

          \u6bcf\u6b21\u5199\u5165 sizeof(int)，\u8fdc\u5c0f\u4e8e\u901a\u5e38\u7684 PIPE_BUF，\u56e0\u6b64\u591a\u4e2a\u5199\u8005\u573a\u666f\u4e0b\u4e5f\u53ef\u4ee5\u83b7\u5f97\u5c0f\u5757\u5199\u5165\u7684\u539f\u5b50\u6027\u4fdd\u8bc1\u3002\u4e0d\u8fc7\u672c\u4f8b\u4e2d\u6bcf\u6761\u7ba1\u9053\u53ea\u6709\u7236\u8fdb\u7a0b\u4e00\u4e2a\u5199\u8005，\u6a21\u578b\u66f4\u52a0\u7b80\u5355\u3002<\/p>\n

          \u4e8c\u3001\u4ee3\u7801\u600e\u4e48\u62c6<\/h2>\n

          \u8349\u7a3f\u4e2d\u4f7f\u7528\u4e86 .hpp \u548c .cxx，\u8fd9\u91cc\u987a\u624b\u8bf4\u660e\u4e00\u4e0b：<\/p>\n

            \n
          • .hpp \u901a\u5e38\u8868\u793a C++ \u5934\u6587\u4ef6；<\/li>\n
          • .cxx\u3001.cc\u3001.cpp \u90fd\u53ef\u4ee5\u4f5c\u4e3a C++ \u6e90\u6587\u4ef6\u540e\u7f00；<\/li>\n
          • .hpp \u5e76\u4e0d\u4ee3\u8868\u201c\u5fc5\u987b\u628a\u5934\u6587\u4ef6\u548c\u6e90\u6587\u4ef6\u6df7\u5728\u4e00\u8d77\u201d，\u5b83\u53ea\u662f\u4e00\u4e2a\u5e38\u89c1\u547d\u540d\u7ea6\u5b9a；<\/li>\n
          • \u6a21\u677f\u6216\u8f83\u5c0f\u7684\u7c7b\u5b9e\u73b0\u7ecf\u5e38\u76f4\u63a5\u653e\u5728 .hpp \u4e2d\u3002<\/li>\n<\/ul>\n

            \u4e0b\u9762\u628a\u7a0b\u5e8f\u62c6\u6210：<\/p>\n

            Task.hpp
            \nChannel.hpp
            \nProcessPool.hpp
            \nmain.cc<\/p>\n

            2.1 Task.hpp：\u7ba1\u7406\u4efb\u52a1<\/h3>\n

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

            #<\/span>include<\/span> <iostream><\/span><\/span>
            \n#<\/span>include<\/span> <vector><\/span><\/span>
            \n#<\/span>include<\/span> <functional><\/span><\/span>
            \n#<\/span>include<\/span> <cstdlib><\/span><\/span>
            \n#<\/span>include<\/span> <ctime><\/span><\/span>
            \n#<\/span>include<\/span> <unistd.h><\/span><\/span><\/p>\n

            using<\/span> task_t =<\/span> std::<\/span>function<<\/span>void<\/span>(<\/span>)<\/span>><\/span>;<\/span><\/p>\n

            void<\/span> PrintLog<\/span>(<\/span>)<\/span>
            \n{<\/span>
            \n std::<\/span>cout
            \n <<<\/span> "\u5b50\u8fdb\u7a0b["<\/span> <<<\/span> getpid<\/span>(<\/span>)<\/span> <<<\/span> "]\u6267\u884c\u6253\u5370\u65e5\u5fd7\u4efb\u52a1"<\/span>
            \n <<<\/span> std::<\/span>endl;<\/span>
            \n}<\/span><\/p>\n

            void<\/span> Download<\/span>(<\/span>)<\/span>
            \n{<\/span>
            \n std::<\/span>cout
            \n <<<\/span> "\u5b50\u8fdb\u7a0b["<\/span> <<<\/span> getpid<\/span>(<\/span>)<\/span> <<<\/span> "]\u6267\u884c\u4e0b\u8f7d\u4efb\u52a1"<\/span>
            \n <<<\/span> std::<\/span>endl;<\/span>
            \n}<\/span><\/p>\n

            void<\/span> Upload<\/span>(<\/span>)<\/span>
            \n{<\/span>
            \n std::<\/span>cout
            \n <<<\/span> "\u5b50\u8fdb\u7a0b["<\/span> <<<\/span> getpid<\/span>(<\/span>)<\/span> <<<\/span> "]\u6267\u884c\u4e0a\u4f20\u4efb\u52a1"<\/span>
            \n <<<\/span> std::<\/span>endl;<\/span>
            \n}<\/span><\/p>\n

            class<\/span> TaskManager<\/span>
            \n{<\/span>
            \npublic<\/span>:<\/span>
            \n TaskManager<\/span>(<\/span>)<\/span>
            \n {<\/span>
            \n std::<\/span>srand<\/span>(<\/span>static_cast<\/span><<\/span>unsigned<\/span> int<\/span>><\/span><\/span><\/span>(<\/span>std::<\/span>time<\/span>(<\/span>nullptr<\/span>)<\/span>)<\/span>)<\/span>;<\/span><\/p>\n

            _tasks.<\/span>push_back<\/span>(<\/span>PrintLog)<\/span>;<\/span>
            \n _tasks.<\/span>push_back<\/span>(<\/span>Download)<\/span>;<\/span>
            \n _tasks.<\/span>push_back<\/span>(<\/span>Upload)<\/span>;<\/span>
            \n }<\/span><\/p>\n

            int<\/span> SelectTaskCode<\/span>(<\/span>)<\/span> const<\/span>
            \n {<\/span>
            \n return<\/span> std::<\/span>rand<\/span>(<\/span>)<\/span> %<\/span> static_cast<\/span><<\/span>int<\/span>><\/span><\/span><\/span>(<\/span>_tasks.<\/span>size<\/span>(<\/span>)<\/span>)<\/span>;<\/span>
            \n }<\/span><\/p>\n

            void<\/span> Execute<\/span>(<\/span>int<\/span> code)<\/span>
            \n {<\/span>
            \n if<\/span> (<\/span>code >=<\/span> 0<\/span> &&<\/span> code <<\/span> static_cast<\/span><<\/span>int<\/span>><\/span><\/span><\/span>(<\/span>_tasks.<\/span>size<\/span>(<\/span>)<\/span>)<\/span>)<\/span>
            \n {<\/span>
            \n _tasks[<\/span>code]<\/span>(<\/span>)<\/span>;<\/span>
            \n }<\/span>
            \n }<\/span><\/p>\n

            private<\/span>:<\/span>
            \n std::<\/span>vector<<\/span>task_t><\/span> _tasks;<\/span>
            \n}<\/span>;<\/span><\/p>\n

            \u4efb\u52a1\u8868\u53ea\u5728\u7a0b\u5e8f\u4e2d\u6ce8\u518c\u4e00\u6b21\u3002<\/p>\n

            \u7236\u8fdb\u7a0b\u8d1f\u8d23\u968f\u673a\u9009\u62e9\u4efb\u52a1\u7801，\u5b50\u8fdb\u7a0b\u8d1f\u8d23\u6839\u636e\u4efb\u52a1\u7801\u6267\u884c\u51fd\u6570\u3002<\/p>\n

            2.2 Channel.hpp：\u63cf\u8ff0\u4e00\u6761\u901a\u4fe1\u4fe1\u9053<\/h3>\n

            \u7236\u8fdb\u7a0b\u8981\u7ba1\u7406\u7684\u4e0d\u53ea\u662f\u4e00\u4e2a fd，\u8fd8\u9700\u8981\u77e5\u9053\u8fd9\u6761\u7ba1\u9053\u5bf9\u5e94\u54ea\u4e2a\u5b50\u8fdb\u7a0b\u3002<\/p>\n

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

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

            class<\/span> Channel<\/span>
            \n{<\/span>
            \npublic<\/span>:<\/span>
            \n Channel<\/span>(<\/span>int<\/span> wfd,<\/span> pid_t child_id)<\/span>
            \n :<\/span> _wfd<\/span>(<\/span>wfd)<\/span>,<\/span>
            \n _child_id<\/span>(<\/span>child_id)<\/span>,<\/span>
            \n _name<\/span>(<\/span>
            \n "channel-"<\/span> +<\/span>
            \n std::<\/span>to_string<\/span>(<\/span>wfd)<\/span> +<\/span>
            \n "-"<\/span> +<\/span>
            \n std::<\/span>to_string<\/span>(<\/span>child_id)<\/span>
            \n )<\/span>
            \n {<\/span>}<\/span><\/p>\n

            const<\/span> std::<\/span>string&<\/span> Name<\/span>(<\/span>)<\/span> const<\/span>
            \n {<\/span>
            \n return<\/span> _name;<\/span>
            \n }<\/span><\/p>\n

            int<\/span> WriteFd<\/span>(<\/span>)<\/span> const<\/span>
            \n {<\/span>
            \n return<\/span> _wfd;<\/span>
            \n }<\/span><\/p>\n

            pid_t ChildId<\/span>(<\/span>)<\/span> const<\/span>
            \n {<\/span>
            \n return<\/span> _child_id;<\/span>
            \n }<\/span><\/p>\n

            bool<\/span> Send<\/span>(<\/span>int<\/span> task_code)<\/span> const<\/span>
            \n {<\/span>
            \n ssize_t n =<\/span> write<\/span>(<\/span>_wfd,<\/span> &<\/span>task_code,<\/span> sizeof<\/span>(<\/span>task_code)<\/span>)<\/span>;<\/span>
            \n return<\/span> n ==<\/span> static_cast<\/span><<\/span>ssize_t><\/span><\/span><\/span>(<\/span>sizeof<\/span>(<\/span>task_code)<\/span>)<\/span>;<\/span>
            \n }<\/span><\/p>\n

            void<\/span> Close<\/span>(<\/span>)<\/span>
            \n {<\/span>
            \n if<\/span> (<\/span>_wfd >=<\/span> 0<\/span>)<\/span>
            \n {<\/span>
            \n close<\/span>(<\/span>_wfd)<\/span>;<\/span>
            \n _wfd =<\/span> –<\/span>1<\/span>;<\/span>
            \n }<\/span>
            \n }<\/span><\/p>\n

            void<\/span> Wait<\/span>(<\/span>)<\/span> const<\/span>
            \n {<\/span>
            \n pid_t ret =<\/span> waitpid<\/span>(<\/span>_child_id,<\/span> nullptr<\/span>,<\/span> 0<\/span>)<\/span>;<\/span><\/p>\n

            if<\/span> (<\/span>ret ><\/span> 0<\/span>)<\/span>
            \n {<\/span>
            \n std::<\/span>cout
            \n <<<\/span> "\u56de\u6536\u5b50\u8fdb\u7a0b："<\/span> <<<\/span> _child_id
            \n <<<\/span> std::<\/span>endl;<\/span>
            \n }<\/span>
            \n }<\/span><\/p>\n

            private<\/span>:<\/span>
            \n int<\/span> _wfd;<\/span>
            \n pid_t _child_id;<\/span>
            \n std::<\/span>string _name;<\/span>
            \n}<\/span>;<\/span><\/p>\n

            \u8fd9\u5c31\u662f\u5148\u63cf\u8ff0<\/font>\u3002<\/p>\n

            \u591a\u4e2a Channel \u518d\u653e\u8fdb vector，\u5c31\u662f\u518d\u7ec4\u7ec7<\/font>\u3002<\/p>\n

            \u4e09\u3001ProcessPool.hpp：\u521b\u5efa\u3001\u6d3e\u53d1\u548c\u56de\u6536<\/h2>\n

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

            #<\/span>include<\/span> <iostream><\/span><\/span>
            \n#<\/span>include<\/span> <vector><\/span><\/span>
            \n#<\/span>include<\/span> <unistd.h><\/span><\/span>
            \n#<\/span>include<\/span> <sys\/types.h><\/span><\/span>
            \n#<\/span>include<\/span> "Task.hpp"<\/span><\/span>
            \n#<\/span>include<\/span> "Channel.hpp"<\/span><\/span><\/p>\n

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

            class<\/span> ProcessPool<\/span>
            \n{<\/span>
            \npublic<\/span>:<\/span>
            \n explicit<\/span> ProcessPool<\/span>(<\/span>int<\/span> process_num =<\/span> DEFAULT_PROCESS_NUM)<\/span>
            \n :<\/span> _process_num<\/span>(<\/span>process_num)<\/span>,<\/span>
            \n _next<\/span>(<\/span>0<\/span>)<\/span>
            \n {<\/span>}<\/span><\/p>\n

            bool<\/span> Start<\/span>(<\/span>)<\/span>
            \n {<\/span>
            \n for<\/span> (<\/span>int<\/span> i =<\/span> 0<\/span>;<\/span> i <<\/span> _process_num;<\/span> ++<\/span>i)<\/span>
            \n {<\/span>
            \n int<\/span> pipefd[<\/span>2<\/span>]<\/span> =<\/span> {<\/span>0<\/span>}<\/span>;<\/span><\/p>\n

            if<\/span> (<\/span>pipe<\/span>(<\/span>pipefd)<\/span> <<\/span> 0<\/span>)<\/span>
            \n {<\/span>
            \n perror<\/span>(<\/span>"pipe"<\/span>)<\/span>;<\/span>
            \n return<\/span> false<\/span>;<\/span>
            \n }<\/span><\/p>\n

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

            if<\/span> (<\/span>child_id <<\/span> 0<\/span>)<\/span>
            \n {<\/span>
            \n perror<\/span>(<\/span>"fork"<\/span>)<\/span>;<\/span>
            \n close<\/span>(<\/span>pipefd[<\/span>0<\/span>]<\/span>)<\/span>;<\/span>
            \n close<\/span>(<\/span>pipefd[<\/span>1<\/span>]<\/span>)<\/span>;<\/span>
            \n return<\/span> false<\/span>;<\/span>
            \n }<\/span>
            \n else<\/span> if<\/span> (<\/span>child_id ==<\/span> 0<\/span>)<\/span>
            \n {<\/span>
            \n \/*
            \n * \u8fd9\u4e2a\u7ec6\u8282\u975e\u5e38\u91cd\u8981：
            \n * \u5f53\u524d\u5b50\u8fdb\u7a0b\u4f1a\u7ee7\u627f\u7236\u8fdb\u7a0b\u6b64\u524d\u4fdd\u5b58\u7684\u6240\u6709\u5199\u7aef\u3002
            \n * \u5982\u679c\u4e0d\u5173\u95ed\u8fd9\u4e9b\u5386\u53f2\u5199\u7aef，\u7236\u8fdb\u7a0b\u5c06\u6765\u5173\u95ed\u5199\u7aef\u540e，
            \n * \u67d0\u4e9b\u5b50\u8fdb\u7a0b\u4ecd\u53ef\u80fd\u56e0\u4e3a\u6301\u6709\u989d\u5916\u5199\u7aef\u800c\u4e00\u76f4\u8bfb\u4e0d\u5230 EOF\u3002
            \n *\/<\/span>
            \n for<\/span> (<\/span>auto<\/span>&<\/span> channel :<\/span> _channels)<\/span>
            \n {<\/span>
            \n close<\/span>(<\/span>channel.<\/span>WriteFd<\/span>(<\/span>)<\/span>)<\/span>;<\/span>
            \n }<\/span><\/p>\n

            close<\/span>(<\/span>pipefd[<\/span>1<\/span>]<\/span>)<\/span>;<\/span><\/p>\n

            Worker<\/span>(<\/span>pipefd[<\/span>0<\/span>]<\/span>)<\/span>;<\/span><\/p>\n

            close<\/span>(<\/span>pipefd[<\/span>0<\/span>]<\/span>)<\/span>;<\/span>
            \n _exit<\/span>(<\/span>0<\/span>)<\/span>;<\/span>
            \n }<\/span><\/p>\n

            close<\/span>(<\/span>pipefd[<\/span>0<\/span>]<\/span>)<\/span>;<\/span><\/p>\n

            _channels.<\/span>emplace_back<\/span>(<\/span>pipefd[<\/span>1<\/span>]<\/span>,<\/span> child_id)<\/span>;<\/span>
            \n }<\/span><\/p>\n

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

            void<\/span> RunOnce<\/span>(<\/span>)<\/span>
            \n {<\/span>
            \n if<\/span> (<\/span>_channels.<\/span>empty<\/span>(<\/span>)<\/span>)<\/span>
            \n {<\/span>
            \n return<\/span>;<\/span>
            \n }<\/span><\/p>\n

            int<\/span> task_code =<\/span> _task_manager.<\/span>SelectTaskCode<\/span>(<\/span>)<\/span>;<\/span>
            \n Channel&<\/span> channel =<\/span> SelectChannel<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

            std::<\/span>cout
            \n <<<\/span> "\u9009\u62e9\u5b50\u8fdb\u7a0b："<\/span> <<<\/span> channel.<\/span>Name<\/span>(<\/span>)<\/span>
            \n <<<\/span> "，\u53d1\u9001\u4efb\u52a1\u7801："<\/span> <<<\/span> task_code
            \n <<<\/span> std::<\/span>endl;<\/span><\/p>\n

            if<\/span> (<\/span>!<\/span>channel.<\/span>Send<\/span>(<\/span>task_code)<\/span>)<\/span>
            \n {<\/span>
            \n perror<\/span>(<\/span>"write task code"<\/span>)<\/span>;<\/span>
            \n }<\/span>
            \n }<\/span><\/p>\n

            void<\/span> Stop<\/span>(<\/span>)<\/span>
            \n {<\/span>
            \n \/*
            \n * \u5148\u5173\u95ed\u7236\u8fdb\u7a0b\u6301\u6709\u7684\u6240\u6709\u5199\u7aef\u3002
            \n * \u5b50\u8fdb\u7a0b\u628a\u7ba1\u9053\u4e2d\u5269\u4f59\u4efb\u52a1\u8bfb\u5b8c\u4ee5\u540e，read() \u8fd4\u56de 0 \u5e76\u9000\u51fa\u3002
            \n *\/<\/span>
            \n for<\/span> (<\/span>auto<\/span>&<\/span> channel :<\/span> _channels)<\/span>
            \n {<\/span>
            \n std::<\/span>cout
            \n <<<\/span> "\u5173\u95ed\u5199\u7aef："<\/span> <<<\/span> channel.<\/span>Name<\/span>(<\/span>)<\/span>
            \n <<<\/span> std::<\/span>endl;<\/span><\/p>\n

            channel.<\/span>Close<\/span>(<\/span>)<\/span>;<\/span>
            \n }<\/span><\/p>\n

            \/*
            \n * \u518d\u7edf\u4e00\u56de\u6536\u6240\u6709\u5b50\u8fdb\u7a0b\u3002
            \n *\/<\/span>
            \n for<\/span> (<\/span>const<\/span> auto<\/span>&<\/span> channel :<\/span> _channels)<\/span>
            \n {<\/span>
            \n channel.<\/span>Wait<\/span>(<\/span>)<\/span>;<\/span>
            \n }<\/span>
            \n }<\/span><\/p>\n

            private<\/span>:<\/span>
            \n void<\/span> Worker<\/span>(<\/span>int<\/span> rfd)<\/span>
            \n {<\/span>
            \n while<\/span> (<\/span>true<\/span>)<\/span>
            \n {<\/span>
            \n int<\/span> task_code =<\/span> 0<\/span>;<\/span><\/p>\n

            ssize_t n =<\/span> read<\/span>(<\/span>rfd,<\/span> &<\/span>task_code,<\/span> sizeof<\/span>(<\/span>task_code)<\/span>)<\/span>;<\/span><\/p>\n

            if<\/span> (<\/span>n ==<\/span> static_cast<\/span><<\/span>ssize_t><\/span><\/span><\/span>(<\/span>sizeof<\/span>(<\/span>task_code)<\/span>)<\/span>)<\/span>
            \n {<\/span>
            \n std::<\/span>cout
            \n <<<\/span> "\u5b50\u8fdb\u7a0b["<\/span> <<<\/span> getpid<\/span>(<\/span>)<\/span>
            \n <<<\/span> "]\u6536\u5230\u4efb\u52a1\u7801："<\/span> <<<\/span> task_code
            \n <<<\/span> std::<\/span>endl;<\/span><\/p>\n

            _task_manager.<\/span>Execute<\/span>(<\/span>task_code)<\/span>;<\/span>
            \n }<\/span>
            \n else<\/span> if<\/span> (<\/span>n ==<\/span> 0<\/span>)<\/span>
            \n {<\/span>
            \n std::<\/span>cout
            \n <<<\/span> "\u5b50\u8fdb\u7a0b["<\/span> <<<\/span> getpid<\/span>(<\/span>)<\/span>
            \n <<<\/span> "]\u8bfb\u53d6\u5230 EOF，\u51c6\u5907\u9000\u51fa"<\/span>
            \n <<<\/span> std::<\/span>endl;<\/span><\/p>\n

            break<\/span>;<\/span>
            \n }<\/span>
            \n else<\/span> if<\/span> (<\/span>n <<\/span> 0<\/span>)<\/span>
            \n {<\/span>
            \n perror<\/span>(<\/span>"read task code"<\/span>)<\/span>;<\/span>
            \n break<\/span>;<\/span>
            \n }<\/span>
            \n else<\/span>
            \n {<\/span>
            \n std::<\/span>cerr <<<\/span> "\u8bfb\u53d6\u5230\u4e0d\u5b8c\u6574\u4efb\u52a1\u7801，\u5b50\u8fdb\u7a0b\u9000\u51fa"<\/span> <<<\/span> std::<\/span>endl;<\/span>
            \n break<\/span>;<\/span>
            \n }<\/span>
            \n }<\/span>
            \n }<\/span><\/p>\n

            Channel&<\/span> SelectChannel<\/span>(<\/span>)<\/span>
            \n {<\/span>
            \n Channel&<\/span> channel =<\/span> _channels[<\/span>_next]<\/span>;<\/span><\/p>\n

            ++<\/span>_next;<\/span>
            \n _next %=<\/span> _channels.<\/span>size<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

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

            private<\/span>:<\/span>
            \n int<\/span> _process_num;<\/span>
            \n std::<\/span>size_t _next;<\/span>
            \n std::<\/span>vector<<\/span>Channel><\/span> _channels;<\/span>
            \n TaskManager _task_manager;<\/span>
            \n}<\/span>;<\/span><\/p>\n

            \u56db\u3001\u6700\u5bb9\u6613\u6f0f\u6389\u7684 Bug：\u5386\u53f2\u5199\u7aef\u7ee7\u627f<\/h2>\n

            \u8fd9\u6bb5\u4ee3\u7801\u91cc\u6700\u5173\u952e\u7684\u4e0d\u662f\u8f6e\u8be2\u7b97\u6cd5，\u800c\u662f\u5173\u95ed\u5386\u53f2\u5199\u7aef<\/font>\u3002<\/p>\n

            \u5047\u8bbe\u7236\u8fdb\u7a0b\u5df2\u7ecf\u521b\u5efa\u4e86\u5b50\u8fdb\u7a0b 1 \u548c\u7ba1\u9053 1，\u63a5\u7740\u518d fork() \u521b\u5efa\u5b50\u8fdb\u7a0b 2，\u90a3\u4e48\u5b50\u8fdb\u7a0b 2 \u4f1a\u7ee7\u627f\u7236\u8fdb\u7a0b\u5f53\u524d\u6301\u6709\u7684\u7ba1\u9053 1 \u5199\u7aef\u3002<\/p>\n

            \u5982\u679c\u4e0d\u628a\u8fd9\u4e2a\u5386\u53f2\u5199\u7aef\u5173\u6389，\u540e\u9762\u7236\u8fdb\u7a0b\u5373\u4f7f\u5173\u95ed\u4e86\u7ba1\u9053 1 \u5199\u7aef，\u5b50\u8fdb\u7a0b 1 \u4e5f\u53ef\u80fd\u56e0\u4e3a\u7cfb\u7edf\u4e2d\u4ecd\u6709\u5176\u4ed6\u5199\u7aef\u5f15\u7528，\u800c\u4e00\u76f4\u8bfb\u4e0d\u5230 EOF\u3002<\/p>\n

            \u8fd9\u5c31\u662f\u8349\u7a3f\u4e2d\u201c\u85cf\u5f97\u6bd4\u8f83\u6df1\u7684\u7cfb\u7edf\u7ea7\u9519\u8bef\u201d\u771f\u6b63\u5bf9\u5e94\u7684\u5730\u65b9\u3002<\/p>\n

            \u6838\u5fc3\u8e29\u5751：<\/font>\u5173\u95ed\u65e0\u5173 fd，\u662f\u591a\u8fdb\u7a0b\u7ba1\u9053\u7a0b\u5e8f\u80fd\u5426\u6b63\u786e\u9000\u51fa\u7684\u5173\u952e\u3002<\/p>\n

            4.1 Bug \u662f\u600e\u4e48\u51fa\u73b0\u7684<\/h3>\n

            \u521b\u5efa\u7b2c 0 \u4e2a\u5b50\u8fdb\u7a0b\u65f6，\u7236\u8fdb\u7a0b\u624b\u91cc\u53ea\u6709\u7ba1\u9053 0 \u7684\u5199\u7aef\u3002<\/p>\n

            \u521b\u5efa\u7b2c 1 \u4e2a\u5b50\u8fdb\u7a0b\u4e4b\u524d，\u7236\u8fdb\u7a0b\u5df2\u7ecf\u628a\u7ba1\u9053 0 \u7684\u5199\u7aef\u4fdd\u5b58\u8fdb _channels\u3002\u8fd9\u65f6\u518d\u6b21 fork()，\u5b50\u8fdb\u7a0b 1 \u4f1a\u628a\u7236\u8fdb\u7a0b\u5f53\u524d\u6301\u6709\u7684 fd \u4e00\u8d77\u7ee7\u627f，\u56e0\u6b64\u5b83\u4e0d\u53ea\u62ff\u5230\u81ea\u5df1\u7684\u7ba1\u9053，\u8fd8\u62ff\u5230\u4e86\u7ba1\u9053 0 \u7684\u5199\u7aef\u3002<\/p>\n

            \u7ee7\u7eed\u521b\u5efa\u4e0b\u53bb：<\/p>\n

            \u5b50\u8fdb\u7a0b 0：\u6301\u6709\u81ea\u5df1\u7684\u8bfb\u7aef
            \n\u5b50\u8fdb\u7a0b 1：\u989d\u5916\u7ee7\u627f\u7ba1\u9053 0 \u5199\u7aef
            \n\u5b50\u8fdb\u7a0b 2：\u989d\u5916\u7ee7\u627f\u7ba1\u9053 0\u30011 \u5199\u7aef
            \n\u5b50\u8fdb\u7a0b 3：\u989d\u5916\u7ee7\u627f\u7ba1\u9053 0\u30011\u30012 \u5199\u7aef<\/p>\n

            \u5982\u679c\u4e0d\u6e05\u7406\u8fd9\u4e9b\u5386\u53f2\u5199\u7aef，\u7236\u8fdb\u7a0b\u5173\u95ed\u81ea\u5df1\u7684\u5199\u7aef\u540e，\u5185\u6838\u4ecd\u7136\u80fd\u770b\u5230\u5176\u4ed6\u5b50\u8fdb\u7a0b\u6301\u6709\u5199\u7aef\u5f15\u7528\u3002\u53ea\u5173\u7236\u8fdb\u7a0b\u81ea\u5df1\u7684 fd \u5e76\u4e0d\u7b49\u4e8e\u7cfb\u7edf\u91cc\u5df2\u7ecf\u6ca1\u6709\u5199\u7aef\u3002<\/font><\/p>\n

            \u7ed3\u679c\u5c31\u662f：<\/p>\n

            \u5b50\u8fdb\u7a0b read()
            \n \u2193
            \n\u7ba1\u9053\u6682\u65f6\u6ca1\u6709\u6570\u636e
            \n \u2193
            \n\u4f46\u5199\u7aef\u5f15\u7528\u8ba1\u6570\u4e0d\u4e3a 0
            \n \u2193
            \n\u4e0d\u80fd\u8fd4\u56de EOF
            \n \u2193
            \n\u5b50\u8fdb\u7a0b\u4e00\u76f4\u963b\u585e
            \n \u2193
            \n\u7236\u8fdb\u7a0b waitpid() \u4e00\u76f4\u7b49<\/p>\n

            \u8fd9\u4e2a\u73b0\u8c61\u770b\u8d77\u6765\u50cf\u201c\u8fdb\u7a0b\u6c60\u9000\u51fa\u6b7b\u9501\u201d，\u672c\u8d28\u4e0a\u5176\u5b9e\u662ffd \u6ca1\u5173\u5e72\u51c0<\/font>\u3002<\/p>\n

            4.2 \u4fee\u590d\u65b9\u5f0f<\/h3>\n

            \u6bcf\u4e2a\u65b0\u521b\u5efa\u7684\u5b50\u8fdb\u7a0b\u8fdb\u5165\u5206\u652f\u540e，\u5148\u628a\u7236\u8fdb\u7a0b\u6b64\u524d\u4fdd\u5b58\u7684\u5386\u53f2\u5199\u7aef\u5168\u90e8\u5173\u95ed：<\/p>\n

            for<\/span> (<\/span>auto<\/span>&<\/span> channel :<\/span> _channels)<\/span>
            \n{<\/span>
            \n close<\/span>(<\/span>channel.<\/span>WriteFd<\/span>(<\/span>)<\/span>)<\/span>;<\/span>
            \n}<\/span><\/p>\n

            \u7136\u540e\u518d\u5173\u95ed\u5f53\u524d\u7ba1\u9053\u7684\u5199\u7aef，\u53ea\u4fdd\u7559\u81ea\u5df1\u7684\u8bfb\u7aef：<\/p>\n

            close<\/span>(<\/span>pipefd[<\/span>1<\/span>]<\/span>)<\/span>;<\/span>
            \nWorker<\/span>(<\/span>pipefd[<\/span>0<\/span>]<\/span>)<\/span>;<\/span><\/p>\n

            \u8fd9\u6837\u7236\u8fdb\u7a0b\u6700\u7ec8\u5173\u95ed\u6240\u6709\u5199\u7aef\u540e，\u6bcf\u4e2a\u5b50\u8fdb\u7a0b\u90fd\u80fd\u5728\u6570\u636e\u8bfb\u5b8c\u65f6\u6536\u5230 EOF<\/font>，\u968f\u540e\u6b63\u5e38\u9000\u51fa\u3002<\/p>\n

            \u4e94\u3001main.cc：\u628a\u6574\u4e2a\u6d41\u7a0b\u8dd1\u8d77\u6765<\/h2>\n

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

            int<\/span> main<\/span>(<\/span>)<\/span>
            \n{<\/span>
            \n ProcessPool pool<\/span>(<\/span>5<\/span>)<\/span>;<\/span><\/p>\n

            if<\/span> (<\/span>!<\/span>pool.<\/span>Start<\/span>(<\/span>)<\/span>)<\/span>
            \n {<\/span>
            \n std::<\/span>cerr <<<\/span> "\u8fdb\u7a0b\u6c60\u542f\u52a8\u5931\u8d25"<\/span> <<<\/span> std::<\/span>endl;<\/span>
            \n return<\/span> 1<\/span>;<\/span>
            \n }<\/span><\/p>\n

            int<\/span> count =<\/span> 10<\/span>;<\/span><\/p>\n

            while<\/span> (<\/span>count—<\/span>)<\/span>
            \n {<\/span>
            \n pool.<\/span>RunOnce<\/span>(<\/span>)<\/span>;<\/span>
            \n sleep<\/span>(<\/span>1<\/span>)<\/span>;<\/span>
            \n }<\/span><\/p>\n

            pool.<\/span>Stop<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

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

            \u4e3b\u8fdb\u7a0b\u5b8c\u6210\u4e09\u4ef6\u4e8b：<\/font><\/p>\n

            Start() \u2192 \u521b\u5efa\u7ba1\u9053\u548c\u5b50\u8fdb\u7a0b
            \nRunOnce() \u2192 \u8f6e\u8be2\u9009\u62e9\u5b50\u8fdb\u7a0b\u5e76\u53d1\u9001\u4efb\u52a1\u7801
            \nStop() \u2192 \u5173\u95ed\u5199\u7aef\u5e76\u56de\u6536\u5b50\u8fdb\u7a0b<\/p>\n

            \u5b50\u8fdb\u7a0b\u5219\u4e00\u76f4\u963b\u585e\u5728\u81ea\u5df1\u7684\u8bfb\u7aef：<\/p>\n

            \u6536\u5230\u4efb\u52a1\u7801 \u2192 \u6267\u884c\u4efb\u52a1 \u2192 \u7ee7\u7eed\u7b49\u5f85
            \n\u8bfb\u53d6\u5230 EOF \u2192 \u9000\u51fa<\/p>\n

            \u8fd9\u6837，\u4e00\u4e2a\u57fa\u4e8e\u533f\u540d\u7ba1\u9053\u7684\u7b80\u5355\u8fdb\u7a0b\u6c60\u5c31\u5b8c\u6210\u4e86\u3002\u521b\u5efa\u3001\u6d3e\u53d1\u3001\u9000\u51fa\u4e09\u6761\u94fe\u8def\u90fd\u5df2\u7ecf\u95ed\u5408\u3002<\/font><\/p>\n

            \n

            \u603b\u7ed3<\/h2>\n

            \u8fd9\u4e2a\u8fdb\u7a0b\u6c60\u6a21\u578b\u5e76\u4e0d\u590d\u6742：<\/p>\n

            Start() \u2192 \u521b\u5efa\u7ba1\u9053\u548c\u5b50\u8fdb\u7a0b
            \nRunOnce() \u2192 \u8f6e\u8be2\u9009\u62e9 Channel，\u53d1\u9001\u4efb\u52a1\u7801
            \nStop() \u2192 \u5173\u95ed\u6240\u6709\u5199\u7aef，\u7b49\u5f85\u5b50\u8fdb\u7a0b\u9000\u51fa<\/p>\n

            \u771f\u6b63\u62c9\u5f00\u201c\u80fd\u8dd1\u201d\u548c\u201c\u5199\u5bf9\u4e86\u201d\u5dee\u8ddd\u7684，\u662f fd \u7ba1\u7406\u3002<\/p>\n

            \u7236\u8fdb\u7a0b\u5728\u5faa\u73af\u91cc\u4e0d\u65ad\u521b\u5efa\u7ba1\u9053\u548c\u5b50\u8fdb\u7a0b\u65f6，\u540e\u521b\u5efa\u7684\u5b50\u8fdb\u7a0b\u4f1a\u7ee7\u627f\u7236\u8fdb\u7a0b\u5df2\u7ecf\u6253\u5f00\u7684\u5386\u53f2\u5199\u7aef\u3002\u53ea\u5173\u95ed\u5f53\u524d\u7ba1\u9053\u7684\u5199\u7aef\u4e0d\u591f，\u5386\u53f2\u5199\u7aef\u4e5f\u5fc5\u987b\u4e00\u8d77\u5173\u6389，\u5426\u5219 EOF \u6761\u4ef6\u6c38\u8fdc\u65e0\u6cd5\u6210\u7acb\u3002<\/p>\n

            \u8fd9\u4e5f\u662f\u8fd9\u7bc7\u6587\u7ae0\u6700\u91cd\u8981\u7684\u7ed3\u8bba：<\/p>\n

            \u6392\u67e5\u91cd\u70b9：<\/font>\u591a\u8fdb\u7a0b\u7a0b\u5e8f\u51fa\u73b0\u9000\u51fa\u5361\u6b7b\u65f6，\u4e0d\u8981\u53ea\u76ef\u7740 waitpid()，\u5148\u68c0\u67e5\u6bcf\u4e2a\u8fdb\u7a0b\u5230\u5e95\u7ee7\u627f\u5e76\u6301\u6709\u54ea\u4e9b fd\u3002<\/p>\n

            \u8fdb\u7a0b\u6c60\u53ea\u662f\u533f\u540d\u7ba1\u9053\u7684\u4e00\u6b21\u6269\u5c55\u5e94\u7528，\u4f46\u5b83\u628a\u7ba1\u9053\u6700\u5bb9\u6613\u5ffd\u7565\u7684\u51e0\u4e2a\u95ee\u9898\u90fd\u66b4\u9732\u51fa\u6765\u4e86：\u7ee7\u627f\u3001\u5f15\u7528\u8ba1\u6570\u3001EOF \u548c\u9000\u51fa\u987a\u5e8f\u3002\u628a\u8fd9\u4e9b\u5173\u7cfb\u5f04\u660e\u767d，\u540e\u9762\u518d\u5199\u66f4\u590d\u6742\u7684\u8fdb\u7a0b\u8c03\u5ea6\u4ee3\u7801\u4f1a\u7a33\u5f88\u591a\u3002<\/p>\n

            \n

            \u8d44\u6e90\u5206\u4eab： \u3010Linux\u3011\u8fdb\u7a0b\u4e3a\u4ec0\u4e48\u4e0d\u80fd\u76f4\u63a5\u901a\u4fe1？\u533f\u540d\u7ba1\u9053\u539f\u7406\u3001fd \u7ee7\u627f\u4e0e\u8bfb\u5199\u89c4\u5219 \u3010Linux\u3011\u6ca1\u6709\u516c\u7f51 IP \u4e5f\u80fd SSH \u56de\u5185\u7f51：\u53cd\u5411 SSH\u3001ProxyJump \u4e0e systemd \u4fdd\u6d3b\u5b9e\u6218 \u3010Linux\u3011\u7cfb\u7edf\u5f7b\u5e95\u8fdb\u4e0d\u53bb\u600e\u4e48\u529e？initramfs\u3001recovery \u4e0e chroot \u6551\u63f4\u6307\u5357<\/p>\n","protected":false},"excerpt":{"rendered":"

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