{"id":91412,"date":"2026-08-07T21:41:00","date_gmt":"2026-08-07T13:41:00","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/91412.html"},"modified":"2026-08-07T21:41:00","modified_gmt":"2026-08-07T13:41:00","slug":"re%ef%bc%9alinux%e7%b3%bb%e7%bb%9f%e7%af%87%ef%bc%88%e4%ba%94%e5%8d%81%e4%b8%80%ef%bc%89%e7%ba%bf%e7%a8%8b%e7%af%87-%c2%b7-%e5%9b%9b%ef%bc%9a%e6%b7%b1%e5%85%a5pthread%e5%ba%93%ef%bc%9a%e5%88%9b","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/91412.html","title":{"rendered":"Re\uff1aLinux\u7cfb\u7edf\u7bc7\uff08\u4e94\u5341\u4e00\uff09\u7ebf\u7a0b\u7bc7 \u00b7 \u56db\uff1a\u6df1\u5165pthread\u5e93\uff1a\u521b\u5efa\u3001\u7b49\u5f85\u3001\u53d6\u6d88\u3001\u5206\u79bb\u4e00\u7bc7\u8bb2\u900f"},"content":{"rendered":"

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

\u25c6 \u535a\u4e3b\u540d\u79f0： \u5c0f\u6b64\u65b9-CSDN\u535a\u5ba2 <\/b><\/p>\n

\u5927\u5bb6\u597d，\u6b22\u8fce\u6765\u5230\u5c0f\u6b64\u65b9\u7684\u535a\u5ba2\u3002 <\/p>\n

\u2b50\ufe0fLinux\u7cfb\u5217\u4e2a\u4eba\u4e13\u680f：
\n \u3010\u4e3b\u9898\u66f2\u3011Linux <\/p>\n

\u2b50\ufe0f\u6b64\u65b9\u7684GitHub：
\n github_\u6b64\u65b9 <\/p>\n

\u2b50\ufe0f
\n Re\u7cfb\u5217\u4e13\u680f：\u6211\u4eec\u601d\u8003 (Rethink) \u00b7 \u6211\u4eec\u91cd\u5efa (Rebuild) \u00b7 \u6211\u4eec\u8bb0\u5f55 (Record) <\/b><\/p>\n

\n

\u6587\u7ae0\u76ee\u5f55<\/h4>\n
    \n
  • \u6982\u8981&\u5e8f\u8ad6<\/li>\n
  • \u4e00\u3001\u8ba4\u8bc6 pthread \u7ebf\u7a0b\u5e93<\/li>\n
  • \n
      \n
    • 1.1 \u4e3a\u4ec0\u4e48\u9700\u8981 pthread \u5e93？<\/li>\n
    • 1.2 \u591a\u7ebf\u7a0b\u7684\u5c42\u72b6\u5c01\u88c5\u5173\u7cfb<\/li>\n
    • \n
        \n
      • 1.2.1 \u5e95\u5c42\u5230\u7528\u6237\u5c42\u7684\u8c03\u7528\u94fe\u8def<\/li>\n
      • 1.2.2 C++11 \u7b49\u9ad8\u7ea7\u8bed\u8a00\u7684\u8de8\u5e73\u53f0\u5b9e\u73b0<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n
      • \u4e8c\u3001\u7ebf\u7a0b\u7684\u63a7\u5236\u63a5\u53e3<\/li>\n
      • \n
          \n
        • 2.1 \u7ebf\u7a0b\u521b\u5efa\u4e0e\u7ebf\u7a0b\u7b49\u5f85<\/li>\n
        • \n
            \n
          • 2.1.1 \u7ebf\u7a0b\u521b\u5efa：pthread_create\u8be6\u89e3<\/li>\n
          • 2.1.2 \u7ebf\u7a0b\u7b49\u5f85：pthread_join<\/li>\n
          • 2.1.3 \u83b7\u53d6\u81ea\u8eab\u7ebf\u7a0b ID：pthread_self<\/li>\n
          • Tips：\u7ebf\u7a0bID\u76f8\u5173\u8bef\u533a<\/li>\n
          • 2.1.4\u7ebf\u7a0b\u521b\u5efa\/\u7b49\u5f85demo\u4ee3\u7801<\/li>\n
          • 2.1.5\u7ebf\u7a0b\u5904\u7406\u4efb\u52a1demo\u4ee3\u7801<\/li>\n<\/ul>\n<\/li>\n
          • 2.2 \u7ebf\u7a0b\u7ec8\u6b62\u4e0e\u7ebf\u7a0b\u53d6\u6d88<\/li>\n
          • \n
              \n
            • 2.2.1 \u7ebf\u7a0b\u7ec8\u6b62\u7684\u65b9\u5f0f<\/li>\n
            • 2.2.2 \u7ebf\u7a0b\u53d6\u6d88：pthread_cancel<\/li>\n<\/ul>\n<\/li>\n
            • 2.3 \u7ebf\u7a0b\u5206\u79bb：pthread_detach<\/li>\n
            • \n
                \n
              • 2.3.1 \u4e3a\u4ec0\u4e48\u9700\u8981\u7ebf\u7a0b\u5206\u79bb？<\/li>\n
              • 2.3.2 pthread_detach \u63a5\u53e3<\/li>\n<\/ul>\n<\/li>\n
              • 2.4 Tips：\u4e00\u4e9b\u503c\u5f97\u601d\u8003\u7684\u7ec6\u8282\u95ee\u9898<\/li>\n
              • \n
                  \n
                • 2.4.1 \u65b0\u7ebf\u7a0b\u80fd\u4e0d\u80fd\u5f00\u66f4\u5c0f\u7684\u7ebf\u7a0b？<\/li>\n
                • 2.4.2 \u65b0\u7ebf\u7a0b\u80fd\u4e0d\u80fd\u628a\u4e3b\u7ebf\u7a0b\u53d6\u6d88\u6389？<\/li>\n<\/ul>\n<\/li>\n
                • 2.5 \u7ebf\u7a0b\u7ec8\u6b62\u4e0e\u7ebf\u7a0b\u5206\u79bbdemo<\/li>\n
                • \n
                    \n
                  • 2.5.1\u7ebf\u7a0b\u5206\u79bbdemo<\/li>\n
                  • 2.5.2\u7ebf\u7a0b\u7ec8\u6b62demo<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n
                    \n

                    \u6982\u8981&\u5e8f\u8ad6<\/h2>\n

                    \u2003\u2003Hello\u5927\u5bb6\u597d，\u6211\u662f\u6b64\u65b9\u3002\u5728\u4e0a\u4e00\u7bc7\u6587\u7ae0\u4e2d，\u6211\u4eec\u6df1\u5165\u4e86\u89e3\u4e86\u7ebf\u7a0b\u7684\u57fa\u672c\u6982\u5ff5\u4ee5\u53ca\u7ebf\u7a0b\u4e0e\u8fdb\u7a0b\u4e4b\u95f4\u7684\u5173\u7cfb\u3002\u672c\u6587\u5c06\u6b63\u5f0f\u8fdb\u5165Linux\u591a\u7ebf\u7a0b\u7f16\u7a0b\u5b9e\u6218，\u5b66\u4e60pthread\u7ebf\u7a0b\u5e93\u63d0\u4f9b\u7684\u6838\u5fc3\u63a7\u5236\u63a5\u53e3，\u5305\u62ec\u7ebf\u7a0b\u521b\u5efa\u3001\u7b49\u5f85\u3001\u9000\u51fa\u3001\u53d6\u6d88\u4ee5\u53ca\u7ebf\u7a0b\u5206\u79bb\u3002\u901a\u8fc7\u8fd9\u4e9b\u63a5\u53e3，\u6211\u4eec\u5c06\u8fdb\u4e00\u6b65\u7406\u89e3\u7ebf\u7a0b\u5b8c\u6574\u751f\u547d\u5468\u671f\u80cc\u540e\u7684\u7cfb\u7edf\u673a\u5236\u3002<\/p>\n

                    \u4e00\u3001\u8ba4\u8bc6 pthread \u7ebf\u7a0b\u5e93<\/h2>\n

                    1.1 \u4e3a\u4ec0\u4e48\u9700\u8981 pthread \u5e93？<\/h3>\n

                    \u2003\u2003\u5728\u64cd\u4f5c\u7cfb\u7edf\u5c42\u9762，Linux \u5e76\u6ca1\u6709\u4f20\u7edf\u610f\u4e49\u4e0a\u771f\u6b63\u72ec\u7acb\u7684\u201c\u7ebf\u7a0b\u201d\u6982\u5ff5\u3002\u5185\u6838\u4e2d\u53ea\u6709\u8f7b\u91cf\u7ea7\u8fdb\u7a0b（LWP, Light Weight Process），\u5185\u6838\u4e3b\u8981\u901a\u8fc7 clone \u6216 vfork \u7b49\u7cfb\u7edf\u8c03\u7528\u6765\u5b9e\u73b0\u5730\u5740\u7a7a\u95f4\u5171\u4eab\u7684\u8fdb\u7a0b\u521b\u5efa\u3002 \u2003\u2003\u4f46\u5bf9\u4e8e\u7528\u6237\u6765\u8bf4，\u5f00\u53d1\u8005\u53ea\u5173\u5fc3\u201c\u7ebf\u7a0b\u201d\u8fd9\u4e00\u62bd\u8c61\u6982\u5ff5\u3002\u4e3a\u4e86\u5f25\u8865\u7528\u6237\u9700\u6c42\u4e0e\u5e95\u5c42\u5b9e\u73b0\u7684\u9e3f\u6c9f，Linux \u63d0\u4f9b\u4e86 pthread \u5e93（\u5373 POSIX \u7ebf\u7a0b\u5e93，\u5c5e\u4e8e\u539f\u751f\u7ebf\u7a0b\u5e93）\u3002\u5b83\u628a\u5e95\u5c42\u7684\u8f7b\u91cf\u7ea7\u8fdb\u7a0b\u7cfb\u7edf\u8c03\u7528\u5c01\u88c5\u8d77\u6765，\u76f4\u63a5\u5411\u7528\u6237\u66b4\u9732\u4e00\u5957\u6807\u51c6\u7684\u7ebf\u7a0b\u521b\u5efa\u4e0e\u63a7\u5236\u63a5\u53e3\u3002<\/p>\n

                    1.2 \u591a\u7ebf\u7a0b\u7684\u5c42\u72b6\u5c01\u88c5\u5173\u7cfb<\/h3>\n

                    \u2003\u2003Linux \u7cfb\u7edf\u7684\u7ebf\u7a0b\u5b9e\u73b0\u5728\u7528\u6237\u5c42（\u7528\u6237\u7ea7\u7ebf\u7a0b），\u7528\u6237\u65e0\u9700\u5173\u5fc3\u5e95\u5c42\u7684 LWP \u7ec6\u8282\u3002\u5b83\u7684\u6574\u4f53\u5c42\u72b6\u5173\u7cfb\u4e0e\u8de8\u5e73\u53f0\u5c01\u88c5\u903b\u8f91\u5982\u4e0b：<\/p>\n

                    1.2.1 \u5e95\u5c42\u5230\u7528\u6237\u5c42\u7684\u8c03\u7528\u94fe\u8def<\/h4>\n
                      \n
                    • \u7528\u6237\u5c42：\u4e0d\u540c\u7684\u8bed\u8a00\u5c01\u88c5\u4e86\u4e0d\u540c\u7684\u7ebf\u7a0b\u5e93\u3002\u6bd4\u5982C++11\u7684\u5e76\u53d1\u652f\u6301\u5e93\u3002<\/li>\n
                    • \u539f\u751f\u7ebf\u7a0b\u5e93\u5c42（pthread）：\u5bf9\u5e95\u5c42\u63a5\u53e3\u8fdb\u884c\u5c01\u88c5\u3002<\/li>\n
                    • \u64cd\u4f5c\u7cfb\u7edf\u5c42（OS）：\u5185\u6838\u63d0\u4f9b clone \u7b49\u7cfb\u7edf\u8c03\u7528，\u521b\u5efa\u4e0e\u7236\u8fdb\u7a0b\u5171\u4eab\u5730\u5740\u7a7a\u95f4\u7684\u8f7b\u91cf\u7ea7\u8fdb\u7a0b\u3002<\/li>\n<\/ul>\n

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

                      1.2.2 C++11 \u7b49\u9ad8\u7ea7\u8bed\u8a00\u7684\u8de8\u5e73\u53f0\u5b9e\u73b0<\/h4>\n

                      \u2003\u2003\u50cf C++11 \u4e2d\u7684 std::thread \u80fd\u591f\u5b9e\u73b0\u8de8\u5e73\u53f0\u53ef\u79fb\u690d\u6027，\u5176\u5e95\u5c42\u4e5f\u662f\u57fa\u4e8e\u6761\u4ef6\u7f16\u8bd1\u8fdb\u884c\u7684\u4e8c\u6b21\u5c01\u88c5：<\/p>\n

                        \n
                      • Linux \u73af\u5883\u4e0b：std::thread \u672c\u8d28\u4e0a\u5c31\u662f\u5bf9 pthread \u5e93 \u7684\u8fdb\u4e00\u6b65\u5c01\u88c5\u3002<\/li>\n
                      • Windows \u73af\u5883\u4e0b：std::thread \u5219\u662f\u5bf9 Windows \u7cfb\u7edf\u7684\u539f\u751f\u521b\u5efa\u7ebf\u7a0b\u63a5\u53e3\u8fdb\u884c\u7684\u5c01\u88c5\u3002<\/li>\n<\/ul>\n

                        \/\/\u4e3e\u4f8b，C++11\u7684\u5e76\u53d1\u652f\u6301\u5e93<\/span>
                        \nvoid<\/span> hello<\/span>(<\/span>)<\/span>{<\/span>
                        \n while<\/span> (<\/span>true<\/span>)<\/span>
                        \n std::<\/span>cout <<<\/span> "\u65b0\u7ebf\u7a0b: hello world"<\/span> <<<\/span> std::<\/span>endl;<\/span>
                        \n}<\/span>
                        \nint<\/span> main<\/span>(<\/span>)<\/span>{<\/span>
                        \n std::<\/span>thread t<\/span>(<\/span>hello)<\/span>;<\/span>
                        \n while<\/span> (<\/span>true<\/span>)<\/span>
                        \n std::<\/span>cout <<<\/span> "\u6211\u662f\u4e3b\u7ebf\u7a0b…"<\/span> <<<\/span> ", pid: "<\/span> <<<\/span> getpid<\/span>(<\/span>)<\/span> <<<\/span> std::<\/span>endl;<\/span>
                        \n t.<\/span>join<\/span>(<\/span>)<\/span>;<\/span>
                        \n return<\/span> 0<\/span>;<\/span>
                        \n}<\/span><\/p>\n

                        \u2003\u2003\u5728\u672a\u6765\u6211\u4e5f\u4f1a\u5728\u73b0\u5728C++\u4e13\u680f\u4e2d\u8bb2\u89e3C++11\u7684\u5e76\u53d1\u652f\u6301\u5e93\u7684\u76f8\u5173\u5185\u5bb9\u3002<\/p>\n

                        \u4e8c\u3001\u7ebf\u7a0b\u7684\u63a7\u5236\u63a5\u53e3<\/h2>\n

                        2.1 \u7ebf\u7a0b\u521b\u5efa\u4e0e\u7ebf\u7a0b\u7b49\u5f85<\/h3>\n
                          \n
                        • \u4e0e\u7ebf\u7a0b\u6709\u5173\u7684\u51fd\u6570\u6784\u6210\u4e86\u4e00\u4e2a\u5b8c\u6574\u7684\u7cfb\u5217，\u7edd\u5927\u591a\u6570\u51fd\u6570\u7684\u540d\u5b57\u90fd\u662f\u4ee5 \u201cpthread_\u201d \u6253\u5934\u7684<\/li>\n
                        • \u8981\u4f7f\u7528\u8fd9\u4e9b\u51fd\u6570\u5e93，\u8981\u901a\u8fc7\u5f15\u5165\u5934\u6587 <pthread.h><\/li>\n
                        • \u94fe\u63a5\u8fd9\u4e9b\u7ebf\u7a0b\u51fd\u6570\u5e93\u65f6\u8981\u4f7f\u7528\u7f16\u8bd1\u5668\u547d\u4ee4\u7684 \u201c-lpthread\u201d \u9009\u9879<\/li>\n<\/ul>\n

                          2.1.1 \u7ebf\u7a0b\u521b\u5efa：pthread_create\u8be6\u89e3<\/h4>\n

                          \u2003\u2003\u51fd\u6570\u539f\u578b：<\/p>\n

                          int<\/span> pthread_create<\/span>(<\/span>pthread_t<\/span> *<\/span>thread,<\/span> const<\/span> pthread_attr_t<\/span> *<\/span>attr,<\/span> void<\/span> *<\/span>(<\/span>*<\/span>start_routine)<\/span> (<\/span>void<\/span> *<\/span>)<\/span>,<\/span> void<\/span> *<\/span>arg)<\/span>;<\/span><\/p>\n

                          \u2003\u2003\u53c2\u6570\u8be6\u89e3：<\/p>\n

                            \n
                          • thread：\u8f93\u51fa\u578b\u53c2\u6570，\u7528\u4e8e\u5e26\u56de\u521b\u5efa\u6210\u529f\u7684\u7ebf\u7a0b ID（tid）\u3002\u6ce8\u610f：\u7ebf\u7a0b tid \u662f pthread \u5e93\u7ef4\u6301\u7684\u6982\u5ff5，\u4e0d\u8981\u76f4\u63a5\u4e0e\u5185\u6838\u7684 LWP \u6982\u5ff5\u6df7\u6dc6\u3002<\/li>\n
                          • attr：\u7528\u4e8e\u8bbe\u7f6e\u7ebf\u7a0b\u5c5e\u6027，\u901a\u5e38\u76f4\u63a5\u4f20\u5165 nullptr \u8868\u793a\u4f7f\u7528\u9ed8\u8ba4\u5c5e\u6027\u3002<\/li>\n
                          • start_routine：\u51fd\u6570\u6307\u9488，\u5373\u65b0\u7ebf\u7a0b\u8981\u6267\u884c\u7684\u5165\u53e3\u51fd\u6570\u3002<\/li>\n
                          • arg：\u4f20\u9012\u7ed9 start_routine \u51fd\u6570\u7684\u53c2\u6570\u3002<\/li>\n<\/ul>\n

                            \u2003\u2003\u8fd4\u56de\u503c：<\/p>\n

                              \n
                            • \u6210\u529f\u65f6\u8fd4\u56de 0\u3002<\/li>\n
                            • \u5931\u8d25\u65f6\u8fd4\u56de \u9519\u8bef\u7801（error number），\u4e14 *thread \u7684\u5185\u5bb9\u672a\u5b9a\u4e49\u3002<\/li>\n<\/ul>\n
                            • main\u51fd\u6570\u7ed3\u675f，\u4ee3\u8868\u4e3b\u7ebf\u7a0b\u7ed3\u675f，\u4e00\u822c\u4e5f\u4ee3\u8868\u8fdb\u7a0b\u7ed3\u675f<\/li>\n
                            • \u65b0\u7ebf\u7a0b\u5bf9\u5e94\u7684\u5165\u53e3\u51fd\u6570，\u8fd0\u884c\u7ed3\u675f，\u4ee3\u8868\u5f53\u524d\u7ebf\u7a0b\u8fd0\u884c\u7ed3\u675f<\/li>\n
                                \n
                              • \u4f20\u7edf\u7684\u4e00\u4e9b\u51fd\u6570\u662f，\u6210\u529f\u8fd4\u56de0，\u5931\u8d25\u8fd4\u56de-1，\u5e76\u4e14\u5bf9\u5168\u5c40\u53d8\u91cferrno\u8d4b\u503c\u4ee5\u6307\u793a\u9519\u8bef\u3002<\/li>\n
                              • pthreads\u51fd\u6570\u51fa\u9519\u65f6\u4e0d\u4f1a\u8bbe\u7f6e\u5168\u5c40\u53d8\u91cferrno（\u800c\u5927\u90e8\u5206\u5176\u4ed6POSIX\u51fd\u6570\u4f1a\u8fd9\u6837\u505a）\u3002\u800c\u662f\u5c06\u9519\u8bef\u4ee3\u7801\u901a\u8fc7\u8fd4\u56de\u503c\u8fd4\u56de\u3002<\/li>\n
                              • pthreads\u540c\u6837\u4e5f\u63d0\u4f9b\u4e86\u7ebf\u7a0b\u5185\u7684errno\u53d8\u91cf，\u4ee5\u652f\u6301\u5176\u5b83\u4f7f\u7528errno\u7684\u4ee3\u7801\u3002\u5bf9\u4e8epthreads\u51fd\u6570\u7684\u9519\u8bef，\u5efa\u8bae\u901a\u8fc7\u8fd4\u56de\u503c\u6765\u5224\u5b9a，\u56e0\u4e3a\u8bfb\u53d6\u8fd4\u56de\u503c\u8981\u6bd4\u8bfb\u53d6\u7ebf\u7a0b\u5185\u7684errno\u53d8\u91cf\u7684\u5f00\u9500\u66f4\u5c0f\u3002<\/li>\n<\/ul>\n

                                2.1.2 \u7ebf\u7a0b\u7b49\u5f85：pthread_join<\/h4>\n

                                \u2003\u2003\u65b0\u7ebf\u7a0b\u521b\u5efa\u540e，\u5fc5\u987b\u88ab\u4e3b\u7ebf\u7a0b\u6216\u5176\u5b83\u7ebf\u7a0b\u7b49\u5f85，\u5426\u5219\u4f1a\u9020\u6210\u7c7b\u4f3c\u4e8e\u50f5\u5c38\u8fdb\u7a0b\u7684\u95ee\u9898，\u5bfc\u81f4\u5185\u5b58\u6cc4\u9732\u3002<\/p>\n

                                \u51fd\u6570\u539f\u578b：<\/p>\n

                                int<\/span> pthread_join<\/span>(<\/span>pthread_t<\/span> thread,<\/span> void<\/span> *<\/span>*<\/span>retval)<\/span>;<\/span><\/p>\n

                                \u53c2\u6570\u4e0e\u4f5c\u7528：<\/p>\n

                                  \n
                                • thread：\u9700\u8981\u7b49\u5f85\u7684\u76ee\u6807\u7ebf\u7a0b ID（\u5373 pthread_create \u83b7\u53d6\u7684 thread）\u3002<\/li>\n
                                • retval：\u8f93\u51fa\u578b\u53c2\u6570，\u7528\u6765\u63a5\u6536\u76ee\u6807\u7ebf\u7a0b\u9000\u51fa\u65f6\u7684\u8fd4\u56de\u503c\u3002<\/li>\n<\/ul>\n

                                  \u4e3a\u4ec0\u4e48\u5728join\u7684\u65f6\u5019，\u6ca1\u6709\u89c1\u5230\u5f02\u5e38\u76f8\u5173\u7684\u5b57\u6bb5\u5462<\/p>\n

                                    \n
                                  • \u7b49\u5f85\u7684\u76ee\u6807\u7ebf\u7a0b\u5982\u679c\u53d1\u751f\u5f02\u5e38，\u4f1a\u5bfc\u81f4\u6574\u4e2a\u8fdb\u7a0b\u5d29\u6e83\u9000\u51fa（\u5305\u62ec main \u7ebf\u7a0b），\u56e0\u6b64\u5728 join \u65f6\u8bd5\u56fe\u6355\u83b7\u7ebf\u7a0b\u5f02\u5e38\u6ca1\u6709\u4efb\u4f55\u610f\u4e49\u3002<\/li>\n
                                  • join \u63a5\u53e3\u7684\u8bbe\u8ba1\u5b8c\u5168\u662f\u57fa\u4e8e\u7ebf\u7a0b\u6b63\u5e38\u8dd1\u5b8c\u7684\u60c5\u51b5\u3002\u5b83\u4e0d\u9700\u8981\u5904\u7406\u5f02\u5e38\u4fe1\u53f7，\u5904\u7406\u5f02\u5e38\u4fe1\u53f7\u662f\u5c5e\u4e8e\u8fdb\u7a0b\u5c42\u9762\u7684\u8bdd\u9898！<\/li>\n<\/ul>\n

                                    \u2003\u2003\u8c03\u7528\u8be5\u51fd\u6570\u7684\u7ebf\u7a0b\u5c06\u6302\u8d77\u7b49\u5f85,\u76f4\u5230id\u4e3athread\u7684\u7ebf\u7a0b\u7ec8\u6b62\u3002thread\u7ebf\u7a0b\u4ee5\u4e0d\u540c\u7684\u65b9\u6cd5\u7ec8\u6b62,\u901a\u8fc7pthread_join\u5f97\u5230\u7684\u7ec8\u6b62\u72b6\u6001\u662f\u4e0d\u540c\u7684,\u603b\u7ed3\u5982\u4e0b:<\/p>\n

                                  • \u5982\u679cthread\u7ebf\u7a0b\u901a\u8fc7return\u8fd4\u56de,value_ ptr\u6240\u6307\u5411\u7684\u5355\u5143\u91cc\u5b58\u653e\u7684\u662fthread\u7ebf\u7a0b\u51fd\u6570\u7684\u8fd4\u56de\u503c\u3002<\/li>\n
                                  • \u5982\u679cthread\u7ebf\u7a0b\u88ab\u522b\u7684\u7ebf\u7a0b\u8c03\u7528pthread_ cancel\u5f02\u5e38\u7ec8\u6389,value_ ptr\u6240\u6307\u5411\u7684\u5355\u5143\u91cc\u5b58\u653e\u7684\u662f\u5e38\u6570PTHREAD_ CANCELED\u3002<\/li>\n
                                  • \u5982\u679cthread\u7ebf\u7a0b\u662f\u81ea\u5df1\u8c03\u7528pthread_exit\u7ec8\u6b62\u7684,value_ptr\u6240\u6307\u5411\u7684\u5355\u5143\u5b58\u653e\u7684\u662f\u4f20\u7ed9pthread_exit\u7684\u53c2\u6570\u3002<\/li>\n
                                  • \u5982\u679c\u5bf9thread\u7ebf\u7a0b\u7684\u7ec8\u6b62\u72b6\u6001\u4e0d\u611f\u5174\u8da3,\u53ef\u4ee5\u4f20NULL\u7ed9value_ ptr\u53c2\u6570\u3002<\/li>\n

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

                                    2.1.3 \u83b7\u53d6\u81ea\u8eab\u7ebf\u7a0b ID：pthread_self<\/h4>\n

                                    \u2003\u2003\u51fd\u6570\u539f\u578b：<\/p>\n

                                    pthread_t<\/span> pthread_self<\/span>(<\/span>void<\/span>)<\/span>;<\/span><\/p>\n

                                    \u4f5c\u7528： \u8fd4\u56de\u8c03\u7528\u7ebf\u7a0b\u81ea\u8eab\u7684\u7ebf\u7a0b ID（tid）\u3002<\/p>\n

                                    Tips：\u7ebf\u7a0bID\u76f8\u5173\u8bef\u533a<\/h4>\n

                                    \u2003\u2003\u5f88\u591a\u4eba\u5bf9\u7ebf\u7a0bid\u6709\u6240\u8bef\u89e3，\u6211\u4eec\u6253\u5370\u4e00\u4e2a\u7ebf\u7a0bID\u770b\u770b，\u5b83\u5176\u5b9e\u4e0d\u662fLWP\u3002<\/p>\n

                                    \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \u2003\u2003\u6253\u5370\u51fa\u6765\u7684 tid \u662f\u4e00\u4e2a pthread_t \u7c7b\u578b\u7684\u53d8\u91cf，\u6307\u4ee3\u7684\u662f\u8c03\u7528 pthread_self \u51fd\u6570\u7684\u7ebf\u7a0b\u7684\u201cID\u201d\u3002 \u2003\u2003\u600e\u4e48\u7406\u89e3\u8fd9\u4e2a\u201cID\u201d\u5462？\u8fd9\u4e2a\u201cID\u201d\u662f pthread \u5e93\u7ed9\u6bcf\u4e2a\u7ebf\u7a0b\u5b9a\u4e49\u7684\u8fdb\u7a0b\u5185\u552f\u4e00\u6807\u8bc6，\u662f pthread \u5e93\u7ef4\u6301\u7684\u3002 \u2003\u2003\u7531\u4e8e\u6bcf\u4e2a\u8fdb\u7a0b\u6709\u81ea\u5df1\u72ec\u7acb\u7684\u5185\u5b58\u7a7a\u95f4，\u6545\u6b64\u201cID\u201d\u7684\u4f5c\u7528\u57df\u662f\u8fdb\u7a0b\u7ea7\u800c\u975e\u7cfb\u7edf\u7ea7（\u5185\u6838\u4e0d\u8ba4\u8bc6）\u3002 \u5176\u5b9e pthread \u5e93\u4e5f\u662f\u901a\u8fc7\u5185\u6838\u63d0\u4f9b\u7684\u7cfb\u7edf\u8c03\u7528（\u4f8b\u5982clone）\u6765\u521b\u5efa\u7ebf\u7a0b\u7684，\u800c\u5185\u6838\u4f1a\u4e3a\u6bcf\u4e2a\u7ebf\u7a0b\u521b\u5efa\u7cfb\u7edf\u5168\u5c40\u552f\u4e00\u7684\u201cID\u201d\u6765\u552f\u4e00\u6807\u8bc6\u8fd9\u4e2a\u7ebf\u7a0b\u3002<\/p>\n

                                    \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \u2003\u2003LWP \u662f\u4ec0\u4e48\u5462？LWP \u5f97\u5230\u7684\u662f\u771f\u6b63\u7684\u7ebf\u7a0bID\u3002\u4e4b\u524d\u4f7f\u7528 pthread_self \u5f97\u5230\u7684\u8fd9\u4e2a\u6570\u5b9e\u9645\u4e0a\u662f\u4e00\u4e2a\u5730\u5740，\u5728\u865a\u62df\u5730\u5740\u7a7a\u95f4\u4e0a\u7684\u4e00\u4e2a\u5730\u5740，\u901a\u8fc7\u8fd9\u4e2a\u5730\u5740，\u53ef\u4ee5\u627e\u5230\u5173\u4e8e\u8fd9\u4e2a\u7ebf\u7a0b\u7684\u57fa\u672c\u4fe1\u606f，\u5305\u62ec\u7ebf\u7a0bID，\u7ebf\u7a0b\u6808，\u5bc4\u5b58\u5668\u7b49\u5c5e\u6027\u3002 \u2003\u2003\u5728 ps -aL \u5f97\u5230\u7684\u7ebf\u7a0bID，\u6709\u4e00\u4e2a\u7ebf\u7a0bID\u548c\u8fdb\u7a0bID\u76f8\u540c，\u8fd9\u4e2a\u7ebf\u7a0b\u5c31\u662f\u4e3b\u7ebf\u7a0b，\u4e3b\u7ebf\u7a0b\u7684\u6808\u5728\u865a\u62df\u5730\u5740\u7a7a\u95f4\u7684\u6808\u4e0a，\u800c\u5176\u4ed6\u7ebf\u7a0b\u7684\u6808\u662f\u5728\u5171\u4eab\u533a（\u5806\u6808\u4e4b\u95f4），\u56e0\u4e3apthread\u7cfb\u5217\u51fd\u6570\u90fd\u662fpthread\u5e93\u63d0\u4f9b\u7ed9\u6211\u4eec\u7684\u3002\u800cpthread\u5e93\u662f\u5728\u5171\u4eab\u533a\u7684\u3002\u6240\u4ee5\u9664\u4e86\u4e3b\u7ebf\u7a0b\u4e4b\u5916\u7684\u5176\u4ed6\u7ebf\u7a0b\u7684\u6808\u90fd\u5728\u5171\u4eab\u533a\u3002（\u8fd9\u5757\u513f\u6211\u4eec\u73b0\u5728\u63d0\u4e00\u5634，\u653e\u5728\u540e\u9762\u8bb2）<\/p>\n

                                    2.1.4\u7ebf\u7a0b\u521b\u5efa\/\u7b49\u5f85demo\u4ee3\u7801<\/h4>\n

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

                                    void<\/span>*<\/span> thread_run<\/span>(<\/span>void<\/span>*<\/span> arg)<\/span> {<\/span>
                                    \n const<\/span> char<\/span>*<\/span> name =<\/span> (<\/span>const<\/span> char<\/span>*<\/span>)<\/span>arg;<\/span>
                                    \n for<\/span> (<\/span>int<\/span> i =<\/span> 0<\/span>;<\/span> i <<\/span> 3<\/span>;<\/span> i++<\/span>)<\/span> {<\/span>
                                    \n std::<\/span>cout <<<\/span> name <<<\/span> " running, tid: "<\/span> <<<\/span> pthread_self<\/span>(<\/span>)<\/span> <<<\/span> std::<\/span>endl;<\/span>
                                    \n sleep<\/span>(<\/span>1<\/span>)<\/span>;<\/span>
                                    \n }<\/span>
                                    \n return<\/span> (<\/span>void<\/span>*<\/span>)<\/span>100<\/span>;<\/span>
                                    \n}<\/span><\/p>\n

                                    int<\/span> main<\/span>(<\/span>)<\/span> {<\/span>
                                    \n pthread_t tid;<\/span>
                                    \n pthread_create<\/span>(<\/span>&<\/span>tid,<\/span> nullptr<\/span>,<\/span> thread_run,<\/span> (<\/span>void<\/span>*<\/span>)<\/span>"thread 1"<\/span>)<\/span>;<\/span><\/p>\n

                                    void<\/span>*<\/span> ret =<\/span> nullptr<\/span>;<\/span>
                                    \n pthread_join<\/span>(<\/span>tid,<\/span> &<\/span>ret)<\/span>;<\/span><\/p>\n

                                    std::<\/span>cout <<<\/span> "thread exit code: "<\/span> <<<\/span> (<\/span>long<\/span> long<\/span>)<\/span>ret <<<\/span> std::<\/span>endl;<\/span>
                                    \n return<\/span> 0<\/span>;<\/span>
                                    \n}<\/span><\/p>\n

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

                                    \u2003\u2003\u7ed9\u7ebf\u7a0b\u4f20\u9012\u7684\u53c2\u6570\u548c\u8fd4\u56de\u503c，\u53ef\u4ee5\u662f\u4efb\u610f\u7c7b\u578b，\u4e8e\u662f\u81ea\u7136\u53ef\u4ee5\u662f\u5bf9\u8c61\u3002<\/p>\n

                                    2.1.5\u7ebf\u7a0b\u5904\u7406\u4efb\u52a1demo\u4ee3\u7801<\/h4>\n

                                    #<\/span>include<\/span> <iostream><\/span><\/span>
                                    \n#<\/span>include<\/span> <pthread.h><\/span><\/span>
                                    \n#<\/span>include<\/span> <unistd.h><\/span><\/span>
                                    \n#<\/span>include<\/span> <string><\/span><\/span>
                                    \n#<\/span>include<\/span> <vector><\/span><\/span>
                                    \n#<\/span>include<\/span><functional><\/span><\/span>
                                    \nusing<\/span> Task =<\/span> std::<\/span>function<<\/span>void<\/span>(<\/span>void<\/span>)<\/span>><\/span> ;<\/span>
                                    \nclass<\/span> TaskManager<\/span>{<\/span>
                                    \nprivate<\/span>:<\/span>
                                    \n std::<\/span>vector<<\/span>Task><\/span> Taskv;<\/span>
                                    \npublic<\/span>:<\/span>
                                    \n TaskManager<\/span>(<\/span>)<\/span>{<\/span>}<\/span>;<\/span>
                                    \n ~<\/span>TaskManager<\/span>(<\/span>)<\/span>{<\/span>}<\/span>;<\/span>
                                    \n void<\/span> Addtask<\/span>(<\/span>const<\/span> std::<\/span>function<<\/span>void<\/span>(<\/span>void<\/span>)<\/span>><\/span>&<\/span> task)<\/span>{<\/span>
                                    \n Taskv.<\/span>push_back<\/span>(<\/span>task)<\/span>;<\/span>
                                    \n }<\/span>
                                    \n Task Gettask<\/span>(<\/span>int<\/span> i)<\/span>{<\/span>
                                    \n return<\/span> Taskv[<\/span>i]<\/span>;<\/span>
                                    \n }<\/span>
                                    \n}<\/span>;<\/span><\/p>\n

                                    void<\/span> *<\/span>Routine<\/span>(<\/span>void<\/span> *<\/span>args)<\/span>
                                    \n{<\/span>
                                    \n Task*<\/span> task =<\/span> (<\/span>Task*<\/span>)<\/span> args ;<\/span>
                                    \n (<\/span>*<\/span>task)<\/span>(<\/span>)<\/span>;<\/span>
                                    \n delete<\/span> task ;<\/span>
                                    \n \/\/ for (int i = 0; i < 10; i++)<\/span>
                                    \n \/\/ std::cout << "\u6211\u662f\u4e00\u4e2a\u7ebf\u7a0b" << "\u6211\u7684\u540d\u5b57\u662f" << args << "\u6211\u7684tid\u662f" << pthread_self() << std::endl;<\/span>
                                    \n return<\/span> (<\/span>void<\/span> *<\/span>)<\/span>100<\/span>;<\/span>
                                    \n}<\/span>
                                    \nvoid<\/span> func_1<\/span>(<\/span>)<\/span> {<\/span> std::<\/span>cout <<<\/span> "\u7ebf\u7a0b ["<\/span> <<<\/span> pthread_self<\/span>(<\/span>)<\/span> <<<\/span> "] \u6b63\u5728\u6267\u884c：\u7f51\u7edc\u4efb\u52a1"<\/span> <<<\/span> std::<\/span>endl;<\/span> }<\/span>
                                    \nvoid<\/span> func_2<\/span>(<\/span>)<\/span> {<\/span> std::<\/span>cout <<<\/span> "\u7ebf\u7a0b ["<\/span> <<<\/span> pthread_self<\/span>(<\/span>)<\/span> <<<\/span> "] \u6b63\u5728\u6267\u884c：\u6570\u636e\u5e93\u4efb\u52a1"<\/span> <<<\/span> std::<\/span>endl;<\/span> }<\/span>
                                    \nvoid<\/span> func_3<\/span>(<\/span>)<\/span> {<\/span> std::<\/span>cout <<<\/span> "\u7ebf\u7a0b ["<\/span> <<<\/span> pthread_self<\/span>(<\/span>)<\/span> <<<\/span> "] \u6b63\u5728\u6267\u884c：\u7cfb\u7edf\u4efb\u52a1"<\/span> <<<\/span> std::<\/span>endl;<\/span> }<\/span>
                                    \nvoid<\/span> func_4<\/span>(<\/span>)<\/span> {<\/span> std::<\/span>cout <<<\/span> "\u7ebf\u7a0b ["<\/span> <<<\/span> pthread_self<\/span>(<\/span>)<\/span> <<<\/span> "] \u6b63\u5728\u6267\u884c：\u91cd\u8981\u4efb\u52a1"<\/span> <<<\/span> std::<\/span>endl;<\/span> }<\/span>
                                    \nvoid<\/span> func_5<\/span>(<\/span>)<\/span> {<\/span> std::<\/span>cout <<<\/span> "\u7ebf\u7a0b ["<\/span> <<<\/span> pthread_self<\/span>(<\/span>)<\/span> <<<\/span> "] \u6b63\u5728\u6267\u884c：\u5173\u952e\u4efb\u52a1"<\/span> <<<\/span> std::<\/span>endl;<\/span> }<\/span>
                                    \nint<\/span> main<\/span>(<\/span>)<\/span>
                                    \n{<\/span>
                                    \n TaskManager taskmag ;<\/span>
                                    \n taskmag.<\/span>Addtask<\/span>(<\/span>func_1)<\/span>;<\/span>
                                    \n taskmag.<\/span>Addtask<\/span>(<\/span>func_2)<\/span>;<\/span>
                                    \n taskmag.<\/span>Addtask<\/span>(<\/span>func_3)<\/span>;<\/span>
                                    \n taskmag.<\/span>Addtask<\/span>(<\/span>func_4)<\/span>;<\/span>
                                    \n taskmag.<\/span>Addtask<\/span>(<\/span>func_5)<\/span>;<\/span><\/p>\n

                                    std::<\/span>vector <<\/span>pthread_t><\/span> pvtion =<\/span>{<\/span>0<\/span>}<\/span>;<\/span>
                                    \n for<\/span> (<\/span>int<\/span> i =<\/span> 0<\/span>;<\/span> i <<\/span> 5<\/span>;<\/span> i++<\/span>)<\/span>
                                    \n {<\/span>
                                    \n Task*<\/span> task =<\/span> new<\/span> Task<\/span>(<\/span>taskmag.<\/span>Gettask<\/span>(<\/span>i)<\/span>)<\/span>;<\/span>
                                    \n int<\/span> n =<\/span> pthread_create<\/span>(<\/span>&<\/span>pvtion[<\/span>i]<\/span>,<\/span> NULL<\/span>,<\/span> Routine,<\/span> task)<\/span>;<\/span>
                                    \n if<\/span> (<\/span>n !=<\/span> 0<\/span>)<\/span>
                                    \n std::<\/span>cerr <<<\/span> "pthread_create error"<\/span> <<<\/span> std::<\/span>endl;<\/span>
                                    \n }<\/span>
                                    \n for<\/span> (<\/span>int<\/span> i =<\/span> 0<\/span>;<\/span> i <<\/span> 5<\/span>;<\/span> i++<\/span>)<\/span>
                                    \n {<\/span>
                                    \n void<\/span> *<\/span>ret =<\/span> 0<\/span>;<\/span>
                                    \n pthread_join<\/span>(<\/span>pvtion[<\/span>i]<\/span>,<\/span> &<\/span>ret)<\/span>;<\/span>
                                    \n std::<\/span>cout <<<\/span> (<\/span>long<\/span>)<\/span>ret <<<\/span> std::<\/span>endl;<\/span>
                                    \n }<\/span>
                                    \n return<\/span> 0<\/span>;<\/span>
                                    \n}<\/span><\/p>\n

                                    2.2 \u7ebf\u7a0b\u7ec8\u6b62\u4e0e\u7ebf\u7a0b\u53d6\u6d88<\/h3>\n

                                    2.2.1 \u7ebf\u7a0b\u7ec8\u6b62\u7684\u65b9\u5f0f<\/h4>\n

                                    \u2003\u2003\u5982\u679c\u9700\u8981\u53ea\u7ec8\u6b62\u67d0\u4e2a\u7ebf\u7a0b&&\u4e0d\u7ec8\u6b62\u6574\u4e2a\u8fdb\u7a0b,\u53ef\u4ee5\u6709\u4e09\u79cd\u65b9\u6cd5:<\/p>\n

                                  • \u5165\u53e3\u51fd\u6570 return：\u7ebf\u7a0b\u5165\u53e3\u51fd\u6570\u8fd0\u884c\u7ed3\u675f\u5e76\u8fd4\u56de，\u4ee3\u8868\u5f53\u524d\u7ebf\u7a0b\u8fd0\u884c\u7ed3\u675f（\u6ce8\u610f：\u4e0d\u80fd\u5728\u7ebf\u7a0b\u4e2d\u4f7f\u7528 exit()，\u56e0\u4e3a exit() \u662f\u7528\u6765\u7ec8\u6b62\u6574\u4e2a\u8fdb\u7a0b\u7684！）\u3002<\/li>\n
                                  • \u4f7f\u7528 pthread_exit \u51fd\u6570：\u7ec8\u6b62\u8c03\u7528\u5b83\u7684\u7ebf\u7a0b\u672c\u8eab\u3002<\/li>\n
                                  • \u88ab\u5176\u4ed6\u7ebf\u7a0b\u53d6\u6d88：\u901a\u8fc7 pthread_cancel \u7ec8\u6b62\u3002<\/li>\n

                                    pthread_exit \u51fd\u6570\u539f\u578b：<\/p>\n

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

                                    void<\/span> pthread_exit<\/span>(<\/span>void<\/span> *<\/span>retval)<\/span>;<\/span><\/p>\n

                                      \n
                                    • retval：\u7ebf\u7a0b\u9000\u51fa\u7684\u8fd4\u56de\u503c（\u540c return retval;），\u53ef\u4ee5\u88ab pthread_join \u83b7\u53d6\u3002<\/li>\n<\/ul>\n

                                      \u2003\u2003\u9700\u8981\u6ce8\u610f,pthread_exit\u6216\u8005return\u8fd4\u56de\u7684\u6307\u9488\u6240\u6307\u5411\u7684\u5185\u5b58\u5355\u5143\u5fc5\u987b\u662f\u5168\u5c40\u7684\u6216\u8005\u662f\u7528malloc\u5206\u914d\u7684,\u4e0d\u80fd\u5728\u7ebf\u7a0b\u51fd\u6570\u7684\u6808\u4e0a\u5206\u914d,\u56e0\u4e3a\u5f53\u5176\u5b83\u7ebf\u7a0b\u5f97\u5230\u8fd9\u4e2a\u8fd4\u56de\u6307\u9488\u65f6\u7ebf\u7a0b\u51fd\u6570\u5df2\u7ecf\u9000\u51fa\u4e86\u3002<\/p>\n

                                      2.2.2 \u7ebf\u7a0b\u53d6\u6d88：pthread_cancel<\/h4>\n

                                      \u51fd\u6570\u539f\u578b：<\/p>\n

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

                                      int<\/span> pthread_cancel<\/span>(<\/span>pthread_t<\/span> thread)<\/span>;<\/span><\/p>\n

                                      \u53c2\u6570\u4e0e\u7ec6\u8282：<\/p>\n

                                        \n
                                      • thread：\u8981\u53d6\u6d88\u7684\u76ee\u6807\u7ebf\u7a0b ID\u3002<\/li>\n
                                      • \u53d6\u6d88\u524d\u63d0：\u53d6\u6d88\u524d\u5fc5\u987b\u786e\u4fdd\u76ee\u6807\u7ebf\u7a0b\u5df2\u7ecf\u542f\u52a8\u8fd0\u884c\u3002<\/li>\n
                                      • \u8fd4\u56de\u503c：\u88ab\u53d6\u6d88\u7684\u7ebf\u7a0b\u5982\u679c\u88ab pthread_join \u7b49\u5f85，\u5176\u5e26\u56de\u7684\u9000\u51fa\u7ed3\u679c\u4e3a PTHREAD_CANCELED（\u672c\u8d28\u4e0a\u662f (void*)-1）\u3002<\/li>\n<\/ul>\n

                                        2.3 \u7ebf\u7a0b\u5206\u79bb：pthread_detach<\/h3>\n

                                        2.3.1 \u4e3a\u4ec0\u4e48\u9700\u8981\u7ebf\u7a0b\u5206\u79bb？<\/h4>\n
                                          \n
                                        • \u9ed8\u8ba4\u72b6\u6001：\u7ebf\u7a0b\u9ed8\u8ba4\u662f\u53ef\u7b49\u5f85\u7684（joinable）\u3002\u4e3b\u7ebf\u7a0b\u5fc5\u987b\u5bf9\u5176\u8fdb\u884c pthread_join \u91ca\u653e\u8d44\u6e90，\u5426\u5219\u4f1a\u5bfc\u81f4\u8d44\u6e90\u6cc4\u6f0f\u3002<\/li>\n
                                        • \u5206\u79bb\u72b6\u6001：\u5982\u679c\u4e3b\u7ebf\u7a0b\u4e0d\u5173\u5fc3\u65b0\u7ebf\u7a0b\u7684\u8fd4\u56de\u503c，\u53ea\u662f\u5e0c\u671b\u65b0\u7ebf\u7a0b\u9000\u51fa\u540e\u80fd\u81ea\u52a8\u91ca\u653e\u81ea\u8eab\u8d44\u6e90，\u5219\u5e94\u5c06\u7ebf\u7a0b\u8bbe\u7f6e\u4e3a\u5206\u79bb\u72b6\u6001（detached）\u3002<\/li>\n
                                        • \u8d44\u6e90\u5f52\u5c5e：\u5206\u79bb\u540e\u7684\u7ebf\u7a0b\u4f9d\u65e7\u5728\u8fdb\u7a0b\u7684\u5730\u5740\u7a7a\u95f4\u4e2d，\u5171\u4eab\u8fdb\u7a0b\u7684\u6240\u6709\u8d44\u6e90，\u53ea\u662f\u4e0d\u518d\u9700\u8981\u4e5f\u4e0d\u518d\u5141\u8bb8\u88ab\u4e3b\u7ebf\u7a0b join\u3002<\/li>\n<\/ul>\n

                                          2.3.2 pthread_detach \u63a5\u53e3<\/h4>\n

                                          \u51fd\u6570\u539f\u578b：<\/p>\n

                                          #<\/span>include<\/span> <pthread.h><\/span><\/span>
                                          \nint<\/span> pthread_detach<\/span>(<\/span>pthread_t<\/span> thread)<\/span>;<\/span><\/p>\n

                                            \n
                                          • \u53ef\u4ee5\u7531\u4e3b\u7ebf\u7a0b\u8c03\u7528 pthread_detach(tid) \u5206\u79bb\u65b0\u7ebf\u7a0b，\u4e5f\u53ef\u4ee5\u7531\u65b0\u7ebf\u7a0b\u5728\u5185\u90e8\u8c03\u7528 pthread_detach(pthread_self()) \u5206\u79bb\u81ea\u5df1\u3002<\/li>\n
                                          • \u6ce8\u610f：\u4e00\u4e2a\u88ab\u5206\u79bb\u7684\u7ebf\u7a0b\u5982\u679c\u518d\u6b21\u88ab\u8c03\u7528 pthread_join，pthread_join \u4f1a\u76f4\u63a5\u62a5\u9519\u8fd4\u56de\u3002<\/li>\n<\/ul>\n

                                            2.4 Tips：\u4e00\u4e9b\u503c\u5f97\u601d\u8003\u7684\u7ec6\u8282\u95ee\u9898<\/h3>\n

                                            2.4.1 \u65b0\u7ebf\u7a0b\u80fd\u4e0d\u80fd\u5f00\u66f4\u5c0f\u7684\u7ebf\u7a0b？<\/h4>\n

                                            \u53ef\u4ee5\u3002 \u5728 POSIX \u7ebf\u7a0b\u6a21\u578b\u4e2d，\u6240\u6709\u7ebf\u7a0b（\u5305\u62ec\u4e3b\u7ebf\u7a0b\u548c\u65b0\u521b\u5efa\u7684\u5b50\u7ebf\u7a0b）\u5728\u6743\u9650\u548c\u5730\u4f4d\u4e0a\u90fd\u662f\u5e73\u7b49\u7684\u3002\u4efb\u4f55\u7ebf\u7a0b\u53ea\u8981\u5177\u5907\u6267\u884c\u6761\u4ef6，\u90fd\u53ef\u4ee5\u901a\u8fc7\u8c03\u7528 pthread_create \u6765\u521b\u5efa\u65b0\u7684\u7ebf\u7a0b\u3002<\/p>\n

                                            2.4.2 \u65b0\u7ebf\u7a0b\u80fd\u4e0d\u80fd\u628a\u4e3b\u7ebf\u7a0b\u53d6\u6d88\u6389？<\/h4>\n

                                            \u5728\u6280\u672f\u63a5\u53e3\u5c42\u9762\u53ef\u4ee5，\u4f46\u903b\u8f91\u4e0a\u6781\u4e0d\u63a8\u8350\u3002<\/p>\n

                                              \n
                                            • \u6280\u672f\u53ef\u884c\u6027：\u4efb\u4f55\u7ebf\u7a0b\u53ea\u8981\u83b7\u53d6\u5230\u4e86\u4e3b\u7ebf\u7a0b\u7684\u7ebf\u7a0b ID（\u53ef\u4ee5\u901a\u8fc7\u53c2\u6570\u5c06\u4e3b\u7ebf\u7a0b\u7684 pthread_self() \u4f20\u7ed9\u5b50\u7ebf\u7a0b），\u90fd\u53ef\u4ee5\u5bf9\u4e3b\u7ebf\u7a0b\u8c03\u7528 pthread_cancel\u3002<\/li>\n
                                            • \u5b9e\u9645\u5f71\u54cd：\u4e3b\u7ebf\u7a0b\u88ab\u53d6\u6d88\u540e，\u4e3b\u7ebf\u7a0b\u4f1a\u9000\u51fa\u8fd0\u884c，\u4f46\u53ea\u8981\u8fdb\u7a0b\u4e2d\u8fd8\u6709\u5176\u4ed6\u672a\u5206\u79bb\u6216\u672a\u9000\u51fa\u7684\u5b50\u7ebf\u7a0b\u5728\u8fd0\u884c，\u6574\u4e2a\u8fdb\u7a0b\u5c31\u4e0d\u4f1a\u7acb\u5373\u7ec8\u6b62；\u76f4\u5230\u6240\u6709\u7ebf\u7a0b\u90fd\u9000\u51fa，\u8fdb\u7a0b\u624d\u4f1a\u771f\u6b63\u7ec8\u6b62\u3002\u8fd9\u79cd\u505a\u6cd5\u6781\u6613\u5f15\u53d1\u8d44\u6e90\u56de\u6536\u903b\u8f91\u6df7\u4e71，\u7834\u574f\u7a0b\u5e8f\u8bbe\u8ba1\u7684\u6b63\u5e38\u751f\u547d\u5468\u671f\u7ba1\u7406\u3002<\/li>\n<\/ul>\n

                                              2.5 \u7ebf\u7a0b\u7ec8\u6b62\u4e0e\u7ebf\u7a0b\u5206\u79bbdemo<\/h3>\n

                                              2.5.1\u7ebf\u7a0b\u5206\u79bbdemo<\/h4>\n

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

                                              void<\/span>*<\/span> thread_detach_demo<\/span>(<\/span>void<\/span>*<\/span> arg)<\/span> {<\/span>
                                              \n pthread_detach<\/span>(<\/span>pthread_self<\/span>(<\/span>)<\/span>)<\/span>;<\/span> \/\/ \u81ea\u6211\u5206\u79bb<\/span>
                                              \n std::<\/span>cout <<<\/span> "detached thread running…"<\/span> <<<\/span> std::<\/span>endl;<\/span>
                                              \n sleep<\/span>(<\/span>1<\/span>)<\/span>;<\/span>
                                              \n return<\/span> nullptr<\/span>;<\/span>
                                              \n}<\/span><\/p>\n

                                              int<\/span> main<\/span>(<\/span>)<\/span> {<\/span>
                                              \n pthread_t tid;<\/span>
                                              \n pthread_create<\/span>(<\/span>&<\/span>tid,<\/span> nullptr<\/span>,<\/span> thread_detach_demo,<\/span> nullptr<\/span>)<\/span>;<\/span><\/p>\n

                                              sleep<\/span>(<\/span>2<\/span>)<\/span>;<\/span> \/\/ \u786e\u4fdd\u5b50\u7ebf\u7a0b\u8fd0\u884c\u5b8c\u6210<\/span><\/p>\n

                                              \/\/ \u5c1d\u8bd5 join \u5df2\u5206\u79bb\u7684\u7ebf\u7a0b<\/span>
                                              \n int<\/span> ret =<\/span> pthread_join<\/span>(<\/span>tid,<\/span> nullptr<\/span>)<\/span>;<\/span>
                                              \n if<\/span> (<\/span>ret !=<\/span> 0<\/span>)<\/span> {<\/span>
                                              \n std::<\/span>cout <<<\/span> "pthread_join failed: "<\/span> <<<\/span> strerror<\/span>(<\/span>ret)<\/span> <<<\/span> std::<\/span>endl;<\/span>
                                              \n }<\/span><\/p>\n

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

                                              2.5.2\u7ebf\u7a0b\u7ec8\u6b62demo<\/h4>\n

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

                                              void<\/span>*<\/span> thread_exit_demo<\/span>(<\/span>void<\/span>*<\/span> arg)<\/span> {<\/span>
                                              \n std::<\/span>cout <<<\/span> "new thread running…"<\/span> <<<\/span> std::<\/span>endl;<\/span>
                                              \n sleep<\/span>(<\/span>1<\/span>)<\/span>;<\/span>
                                              \n pthread_exit<\/span>(<\/span>(<\/span>void<\/span>*<\/span>)<\/span>200<\/span>)<\/span>;<\/span> \/\/ \u7ec8\u6b62\u81ea\u8eab\u5e76\u8fd4\u56de 200<\/span>
                                              \n}<\/span><\/p>\n

                                              int<\/span> main<\/span>(<\/span>)<\/span> {<\/span>
                                              \n pthread_t tid;<\/span>
                                              \n pthread_create<\/span>(<\/span>&<\/span>tid,<\/span> nullptr<\/span>,<\/span> thread_exit_demo,<\/span> nullptr<\/span>)<\/span>;<\/span><\/p>\n

                                              void<\/span>*<\/span> ret =<\/span> nullptr<\/span>;<\/span>
                                              \n pthread_join<\/span>(<\/span>tid,<\/span> &<\/span>ret)<\/span>;<\/span>
                                              \n std::<\/span>cout <<<\/span> "thread exit code: "<\/span> <<<\/span> (<\/span>long<\/span> long<\/span>)<\/span>ret <<<\/span> std::<\/span>endl;<\/span><\/p>\n

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

                                              \n

                                              \u597d\u7684\u672c\u671f\u5185\u5bb9\u5c31\u5230\u8fd9\u91cc，\u5982\u679c\u5bf9\u4f60\u6709\u5e2e\u52a9，\u8fd8\u4e0d\u8981\u5fd8\u8bb0\u70b9\u8d5e\u4e09\u8054\u652f\u6301\u3002\u6211\u662f\u6b64\u65b9，\u6211\u4eec\u4e0b\u671f\u518d\u89c1\u3002bye! Linux\u3001C++\u3001\u7b97\u6cd5\u6301\u7eed\u8fde\u8f7d\u4e2d，\u6b22\u8fce\u5173\u6ce8WeChat Official Account \u3010\u6b64\u65b9\u7684\u6280\u672f\u6808\u3011\u3002<\/b><\/p>\n","protected":false},"excerpt":{"rendered":"

                                              \u25c6 \u535a\u4e3b\u540d\u79f0： \u5c0f\u6b64\u65b9-CSDN\u535a\u5ba2 \u5927\u5bb6\u597d，\u6b22\u8fce\u6765\u5230\u5c0f\u6b64\u65b9\u7684\u535a\u5ba2\u3002 \u2b50\ufe0fLinux\u7cfb\u5217\u4e2a\u4eba\u4e13\u680f： \u3010\u4e3b\u9898\u66f2\u3011Linux \u2b50\ufe0f\u6b64\u65b9\u7684GitHub： github_\u6b64\u65b9 \u2b50\ufe0fRe\u7cfb\u5217\u4e13\u680f：\u6211\u4eec\u601d\u8003 (Rethink) \u00b7 \u6211\u4eec\u91cd\u5efa (Rebuild) \u00b7 \u6211\u4eec\u8bb0\u5f55 (Record) \u6587\u7ae0\u76ee\u5f55\u6982\u8981&\u5e8f\u8ad6\u4e00\u3001\u8ba4\u8bc6 pthread \u7ebf\u7a0b\u5e931.1 \u4e3a\u4ec0\u4e48\u9700\u8981 pthread \u5e93？1.2 \u591a\u7ebf\u7a0b\u7684\u5c42\u72b6<\/p>\n","protected":false},"author":2,"featured_media":91406,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[10187,58,44,1363],"topic":[],"class_list":["post-91412","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-codingplan","tag-linux","tag-44","tag-1363"],"yoast_head":"\nRe\uff1aLinux\u7cfb\u7edf\u7bc7\uff08\u4e94\u5341\u4e00\uff09\u7ebf\u7a0b\u7bc7 \u00b7 \u56db\uff1a\u6df1\u5165pthread\u5e93\uff1a\u521b\u5efa\u3001\u7b49\u5f85\u3001\u53d6\u6d88\u3001\u5206\u79bb\u4e00\u7bc7\u8bb2\u900f - 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