{"id":35394,"date":"2025-05-04T13:50:08","date_gmt":"2025-05-04T05:50:08","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/35394.html"},"modified":"2025-05-04T13:50:08","modified_gmt":"2025-05-04T05:50:08","slug":"%e3%80%90linux%e6%8e%a2%e7%b4%a2%e5%ad%a6%e4%b9%a0%e3%80%91%e7%ac%ac%e4%ba%8c%e5%8d%81%e4%b9%9d%e5%bc%b9-%e7%ba%bf%e7%a8%8b%e6%a6%82%e5%bf%b5%ef%bc%9alinux%e7%ba%bf%e7%a8%8b%e7%9a%84","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/35394.html","title":{"rendered":"\u3010Linux\u63a2\u7d22\u5b66\u4e60\u3011\u7b2c\u4e8c\u5341\u4e5d\u5f39\u2014\u2014\u7ebf\u7a0b\u6982\u5ff5\uff1aLinux\u7ebf\u7a0b\u7684\u57fa\u672c\u6982\u5ff5\u4e0e\u7ebf\u7a0b\u63a7\u5236\u8be6\u89e3"},"content":{"rendered":"

Linux\u5b66\u4e60\u7b14\u8bb0：<\/p>\n

https:\/\/blog.csdn.net\/2301_80220607\/category_12805278.html?spm=1001.2014.3001.5482<\/p>\n

\u524d\u8a00：<\/p>\n

\u5728\u73b0\u4ee3\u64cd\u4f5c\u7cfb\u7edf\u4e2d，\u7ebf\u7a0b\u662f\u7a0b\u5e8f\u6267\u884c\u6d41\u7684\u6700\u5c0f\u5355\u5143\u3002\u4e0e\u8fdb\u7a0b\u76f8\u6bd4，\u7ebf\u7a0b\u66f4\u52a0\u8f7b\u91cf\u7ea7，\u521b\u5efa\u548c\u9500\u6bc1\u7684\u5f00\u9500\u66f4\u5c0f，\u4e14\u7ebf\u7a0b\u4e4b\u95f4\u53ef\u4ee5\u5171\u4eab\u5185\u5b58\u7a7a\u95f4，\u56e0\u6b64\u5728\u591a\u4efb\u52a1\u5904\u7406\u3001\u5e76\u53d1\u7f16\u7a0b\u4e2d，\u7ebf\u7a0b\u7684\u4f7f\u7528\u975e\u5e38\u5e7f\u6cdb\u3002Linux\u4f5c\u4e3a\u4e00\u4e2a\u591a\u7528\u6237\u3001\u591a\u4efb\u52a1\u7684\u64cd\u4f5c\u7cfb\u7edf，\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u7ebf\u7a0b\u652f\u6301\u3002\u672c\u6587\u5c06\u8be6\u7ec6\u4ecb\u7ecdLinux\u4e2d\u7ebf\u7a0b\u7684\u57fa\u672c\u6982\u5ff5\u4ee5\u53ca\u7ebf\u7a0b\u63a7\u5236\u7684\u76f8\u5173\u77e5\u8bc6，\u5e76\u901a\u8fc7\u4ee3\u7801\u793a\u4f8b\u5e2e\u52a9\u8bfb\u8005\u66f4\u597d\u5730\u7406\u89e3\u3002<\/p>\n

\u76ee\u5f55<\/p>\n

\n

\u4e00\u3001\u7ebf\u7a0b\u7684\u57fa\u672c\u6982\u5ff5<\/p>\n

1.1 \u4ec0\u4e48\u662f\u7ebf\u7a0b？<\/p>\n

1.2 \u7ebf\u7a0b\u4e0e\u8fdb\u7a0b\u7684\u533a\u522b<\/p>\n

1.3 \u7ebf\u7a0b\u7684\u4f18\u70b9<\/p>\n

1.4 \u7ebf\u7a0b\u7684\u7f3a\u70b9<\/p>\n

\u4e8c\u3001Linux\u4e2d\u7684\u7ebf\u7a0b\u6a21\u578b<\/p>\n

2.1 \u7528\u6237\u7ea7\u7ebf\u7a0b\u4e0e\u5185\u6838\u7ea7\u7ebf\u7a0b<\/p>\n

2.2 Linux\u7684\u7ebf\u7a0b\u5b9e\u73b0<\/p>\n

\u4e09\u3001\u7ebf\u7a0b\u63a7\u5236<\/p>\n

3.1 \u7ebf\u7a0b\u7684\u521b\u5efa\u4e0e\u7ec8\u6b62<\/p>\n

3.1.1 \u521b\u5efa\u7ebf\u7a0b<\/p>\n

3.1.2 \u7ec8\u6b62\u7ebf\u7a0b<\/p>\n

3.2 \u7ebf\u7a0b\u7684\u5c5e\u6027<\/p>\n

3.3 \u7ebf\u7a0b\u7684\u53d6\u6d88<\/p>\n

3.4 \u7ebf\u7a0b\u7684\u6e05\u7406<\/p>\n

\u56db\u3001\u7ebf\u7a0b\u5206\u79bb<\/p>\n

4.1 \u4ec0\u4e48\u662f\u7ebf\u7a0b\u5206\u79bb？<\/p>\n

4.2 \u8bbe\u7f6e\u7ebf\u7a0b\u4e3a\u5206\u79bb\u72b6\u6001<\/p>\n

4.3 \u7ebf\u7a0b\u5206\u79bb\u7684\u6ce8\u610f\u4e8b\u9879<\/p>\n

\u4e94\u3001\u7ebf\u7a0b\u7684\u8c03\u5ea6<\/p>\n

5.1 \u7ebf\u7a0b\u7684\u8c03\u5ea6\u7b56\u7565<\/p>\n

5.2 \u8bbe\u7f6e\u7ebf\u7a0b\u7684\u8c03\u5ea6\u7b56\u7565<\/p>\n

\u4e94\u3001\u603b\u7ed3<\/p>\n

\n

\u4e00\u3001\u7ebf\u7a0b\u7684\u57fa\u672c\u6982\u5ff5<\/h3>\n

1.1 \u4ec0\u4e48\u662f\u7ebf\u7a0b？<\/h4>\n

\u7ebf\u7a0b（Thread）\u662f\u64cd\u4f5c\u7cfb\u7edf\u80fd\u591f\u8fdb\u884c\u8fd0\u7b97\u8c03\u5ea6\u7684\u6700\u5c0f\u5355\u4f4d\u3002\u5b83\u88ab\u5305\u542b\u5728\u8fdb\u7a0b\u4e4b\u4e2d，\u662f\u8fdb\u7a0b\u4e2d\u7684\u5b9e\u9645\u8fd0\u4f5c\u5355\u4f4d\u3002\u4e00\u4e2a\u8fdb\u7a0b\u53ef\u4ee5\u5305\u542b\u591a\u4e2a\u7ebf\u7a0b，\u8fd9\u4e9b\u7ebf\u7a0b\u5171\u4eab\u8fdb\u7a0b\u7684\u8d44\u6e90（\u5982\u5185\u5b58\u3001\u6587\u4ef6\u63cf\u8ff0\u7b26\u7b49），\u4f46\u6bcf\u4e2a\u7ebf\u7a0b\u62e5\u6709\u72ec\u7acb\u7684\u6267\u884c\u6808\u548c\u7a0b\u5e8f\u8ba1\u6570\u5668\u3002<\/p>\n

\u7ebf\u7a0b\u5176\u5b9e\u5c31\u662f\u6211\u4eec\u4e4b\u524d\u6240\u8bb2\u7684\u8fdb\u7a0b\u7684\u5ef6\u7533，\u8fdb\u7a0b\u5b9e\u9645\u4e0a\u662f\u53ef\u4ee5\u7531\u591a\u4e2a\u6267\u884c\u6d41\u7ec4\u6210\u7684，\u8fd9\u4e9b\u6267\u884c\u6d41\u5176\u5b9e\u5c31\u53eb\u505a\u7ebf\u7a0b，\u6211\u4eec\u4e4b\u524d\u6240\u8bb2\u7684\u8fdb\u7a0b\u5b9e\u9645\u4e0a\u5c31\u662f\u53ea\u6709\u5355\u6267\u884c\u6d41\u7684\u7279\u6b8a\u60c5\u51b5，\u8fdb\u7a0b\u5b9e\u9645\u4e0a\u53ef\u4ee5\u770b\u4f5c\u8d44\u6e90\u5206\u914d\u7684\u5b9e\u4f53，\u7ebf\u7a0b\u5c31\u662f\u8d44\u6e90\u5206\u914d\u7684\u57fa\u672c\u5355\u4f4d<\/p>\n

\"\"<\/p>\n

1.2 \u7ebf\u7a0b\u4e0e\u8fdb\u7a0b\u7684\u533a\u522b<\/h4>\n\n\u7279\u6027\u8fdb\u7a0b\u7ebf\u7a0b<\/tr>\n\n\n\n\n\n\n
\u5b9a\u4e49<\/td>\n\u7a0b\u5e8f\u7684\u4e00\u6b21\u6267\u884c，\u62e5\u6709\u72ec\u7acb\u7684\u5185\u5b58\u7a7a\u95f4<\/td>\n\u8fdb\u7a0b\u4e2d\u7684\u4e00\u4e2a\u6267\u884c\u6d41，\u5171\u4eab\u8fdb\u7a0b\u7684\u5185\u5b58\u7a7a\u95f4<\/td>\n<\/tr>\n
\u8d44\u6e90\u5f00\u9500<\/td>\n\u8f83\u5927，\u521b\u5efa\u548c\u9500\u6bc1\u5f00\u9500\u5927<\/td>\n\u8f83\u5c0f，\u521b\u5efa\u548c\u9500\u6bc1\u5f00\u9500\u5c0f<\/td>\n<\/tr>\n
\u901a\u4fe1\u65b9\u5f0f<\/td>\n\u8fdb\u7a0b\u95f4\u901a\u4fe1（IPC）\u673a\u5236\u590d\u6742<\/td>\n\u7ebf\u7a0b\u95f4\u901a\u4fe1\u7b80\u5355，\u76f4\u63a5\u5171\u4eab\u5185\u5b58<\/td>\n<\/tr>\n
\u4e0a\u4e0b\u6587\u5207\u6362<\/td>\n\u5f00\u9500\u5927<\/td>\n\u5f00\u9500\u5c0f<\/td>\n<\/tr>\n
\u72ec\u7acb\u6027<\/td>\n\u72ec\u7acb，\u4e92\u4e0d\u5f71\u54cd<\/td>\n\u4f9d\u8d56\u8fdb\u7a0b，\u7ebf\u7a0b\u95f4\u76f8\u4e92\u5f71\u54cd<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

1.3 \u7ebf\u7a0b\u7684\u4f18\u70b9<\/h4>\n
  • \n

    \u54cd\u5e94\u6027：\u591a\u7ebf\u7a0b\u7a0b\u5e8f\u53ef\u4ee5\u5728\u4e00\u4e2a\u7ebf\u7a0b\u7b49\u5f85I\/O\u65f6，\u53e6\u4e00\u4e2a\u7ebf\u7a0b\u7ee7\u7eed\u6267\u884c，\u4ece\u800c\u63d0\u9ad8\u7a0b\u5e8f\u7684\u54cd\u5e94\u6027\u3002<\/p>\n<\/li>\n

  • \n

    \u8d44\u6e90\u5171\u4eab：\u7ebf\u7a0b\u5171\u4eab\u8fdb\u7a0b\u7684\u5185\u5b58\u7a7a\u95f4，\u56e0\u6b64\u7ebf\u7a0b\u95f4\u7684\u6570\u636e\u5171\u4eab\u548c\u901a\u4fe1\u66f4\u52a0\u65b9\u4fbf\u3002<\/p>\n<\/li>\n

  • \n

    \u7ecf\u6d4e\u6027：\u521b\u5efa\u548c\u9500\u6bc1\u7ebf\u7a0b\u7684\u5f00\u9500\u6bd4\u8fdb\u7a0b\u5c0f，\u4e14\u7ebf\u7a0b\u5207\u6362\u7684\u5f00\u9500\u4e5f\u6bd4\u8fdb\u7a0b\u5c0f\u3002<\/p>\n<\/li>\n

  • \n

    \u591a\u6838\u5229\u7528：\u591a\u7ebf\u7a0b\u7a0b\u5e8f\u53ef\u4ee5\u5145\u5206\u5229\u7528\u591a\u6838CPU\u7684\u5e76\u884c\u8ba1\u7b97\u80fd\u529b\u3002<\/p>\n<\/li>\n

    1.4 \u7ebf\u7a0b\u7684\u7f3a\u70b9<\/h4>\n
  • \n

    \u540c\u6b65\u95ee\u9898：\u591a\u4e2a\u7ebf\u7a0b\u5171\u4eab\u540c\u4e00\u8fdb\u7a0b\u7684\u8d44\u6e90，\u5bb9\u6613\u5f15\u53d1\u7ade\u6001\u6761\u4ef6\u7b49\u95ee\u9898\u3002<\/p>\n<\/li>\n

  • \n

    \u8c03\u8bd5\u56f0\u96be：\u591a\u7ebf\u7a0b\u7a0b\u5e8f\u7684\u8c03\u8bd5\u6bd4\u5355\u7ebf\u7a0b\u7a0b\u5e8f\u590d\u6742，\u56e0\u4e3a\u7ebf\u7a0b\u7684\u6267\u884c\u987a\u5e8f\u662f\u4e0d\u786e\u5b9a\u7684\u3002<\/p>\n<\/li>\n

  • \n

    \u8d44\u6e90\u7ade\u4e89：\u591a\u4e2a\u7ebf\u7a0b\u7ade\u4e89\u540c\u4e00\u8d44\u6e90\u65f6，\u53ef\u80fd\u5bfc\u81f4\u6027\u80fd\u4e0b\u964d\u3002<\/p>\n<\/li>\n

    \u8fd9\u4e9b\u95ee\u9898\u6211\u4eec\u4f1a\u5728\u540e\u9762\u7684\u7ae0\u8282\u8fdb\u884c\u89e3\u51b3，\u5c24\u5176\u662f\u7ebf\u7a0b\u7684\u540c\u6b65\u4e0e\u4e92\u65a5\u95ee\u9898\u662f\u5f88\u91cd\u8981\u7684，\u6211\u4eec\u540e\u9762\u4f1a\u8fdb\u884c\u8bb2\u89e3<\/p>\n

    \u4e8c\u3001Linux\u4e2d\u7684\u7ebf\u7a0b\u6a21\u578b<\/h3>\n

    2.1 \u7528\u6237\u7ea7\u7ebf\u7a0b\u4e0e\u5185\u6838\u7ea7\u7ebf\u7a0b<\/h4>\n

    \u5728Linux\u4e2d，\u7ebf\u7a0b\u7684\u5b9e\u73b0\u53ef\u4ee5\u5206\u4e3a\u7528\u6237\u7ea7\u7ebf\u7a0b\u548c\u5185\u6838\u7ea7\u7ebf\u7a0b\u3002<\/p>\n

      \n
    • \n

      \u7528\u6237\u7ea7\u7ebf\u7a0b：\u7531\u7528\u6237\u7a7a\u95f4\u7684\u7ebf\u7a0b\u5e93（\u5982POSIX\u7ebf\u7a0b\u5e93）\u7ba1\u7406，\u5185\u6838\u5e76\u4e0d\u77e5\u9053\u8fd9\u4e9b\u7ebf\u7a0b\u7684\u5b58\u5728\u3002\u7528\u6237\u7ea7\u7ebf\u7a0b\u7684\u521b\u5efa\u3001\u8c03\u5ea6\u3001\u540c\u6b65\u7b49\u64cd\u4f5c\u90fd\u7531\u7ebf\u7a0b\u5e93\u5728\u7528\u6237\u7a7a\u95f4\u5b8c\u6210\u3002\u4f18\u70b9\u662f\u7ebf\u7a0b\u5207\u6362\u5f00\u9500\u5c0f，\u7f3a\u70b9\u662f\u65e0\u6cd5\u5229\u7528\u591a\u6838CPU\u7684\u5e76\u884c\u80fd\u529b\u3002<\/p>\n<\/li>\n

    • \n

      \u5185\u6838\u7ea7\u7ebf\u7a0b：\u7531\u64cd\u4f5c\u7cfb\u7edf\u5185\u6838\u7ba1\u7406，\u5185\u6838\u77e5\u9053\u6bcf\u4e2a\u7ebf\u7a0b\u7684\u5b58\u5728，\u5e76\u8d1f\u8d23\u7ebf\u7a0b\u7684\u8c03\u5ea6\u3002\u5185\u6838\u7ea7\u7ebf\u7a0b\u7684\u521b\u5efa\u3001\u8c03\u5ea6\u3001\u540c\u6b65\u7b49\u64cd\u4f5c\u90fd\u9700\u8981\u901a\u8fc7\u7cfb\u7edf\u8c03\u7528\u6765\u5b8c\u6210\u3002\u4f18\u70b9\u662f\u53ef\u4ee5\u5229\u7528\u591a\u6838CPU\u7684\u5e76\u884c\u80fd\u529b，\u7f3a\u70b9\u662f\u7ebf\u7a0b\u5207\u6362\u5f00\u9500\u8f83\u5927\u3002<\/p>\n<\/li>\n<\/ul>\n

      2.2 Linux\u7684\u7ebf\u7a0b\u5b9e\u73b0<\/h4>\n

      Linux\u901a\u8fc7\u8f7b\u91cf\u7ea7\u8fdb\u7a0b（Lightweight Process, LWP）\u6765\u5b9e\u73b0\u7ebf\u7a0b\u3002\u6bcf\u4e2a\u7ebf\u7a0b\u5728\u5185\u6838\u4e2d\u90fd\u6709\u4e00\u4e2a\u5bf9\u5e94\u7684\u8f7b\u91cf\u7ea7\u8fdb\u7a0b，\u8fd9\u4e9b\u8f7b\u91cf\u7ea7\u8fdb\u7a0b\u5171\u4eab\u540c\u4e00\u5730\u5740\u7a7a\u95f4\u548c\u5176\u4ed6\u8d44\u6e90\u3002Linux\u7684\u7ebf\u7a0b\u5e93（\u5982NPTL）\u63d0\u4f9b\u4e86\u5bf9POSIX\u7ebf\u7a0b\u6807\u51c6\u7684\u652f\u6301\u3002\u6211\u4eec\u53ef\u4ee5\u7406\u89e3\u4e3aLinux\u7684\u7ebf\u7a0b\u5b9e\u73b0\u5c31\u662f\u7528\u6237\u5c42\u7684，\u56e0\u4e3aLinux\u4e2d\u5e76\u6ca1\u6709\u7ebf\u7a0b\u7684\u6982\u5ff5，\u6709\u7684\u53ea\u662f\u8f7b\u91cf\u7ea7\u8fdb\u7a0b\u7684\u6982\u5ff5，\u662f\u901a\u8fc7\u5728\u7528\u6237\u5c42\u8fdb\u884c\u5c01\u88c5\u6765\u5b9e\u73b0\u7684<\/p>\n

      \u4e09\u3001\u7ebf\u7a0b\u63a7\u5236<\/h3>\n

      3.1 \u7ebf\u7a0b\u7684\u521b\u5efa\u4e0e\u7ec8\u6b62<\/h4>\n

      \u5728Linux\u4e2d，\u7ebf\u7a0b\u7684\u521b\u5efa\u548c\u7ec8\u6b62\u662f\u901a\u8fc7POSIX\u7ebf\u7a0b\u5e93（pthread）\u6765\u5b9e\u73b0\u7684\u3002\u4e0b\u9762\u6211\u4eec\u901a\u8fc7\u4ee3\u7801\u793a\u4f8b\u6765\u8bb2\u89e3\u7ebf\u7a0b\u7684\u521b\u5efa\u4e0e\u7ec8\u6b62\u3002<\/p>\n

      3.1.1 \u521b\u5efa\u7ebf\u7a0b<\/h5>\n

      \u5728POSIX\u7ebf\u7a0b\u5e93\u4e2d，\u4f7f\u7528pthread_create\u51fd\u6570\u6765\u521b\u5efa\u7ebf\u7a0b\u3002\u8be5\u51fd\u6570\u7684\u539f\u578b\u5982\u4e0b：<\/p>\n

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

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

        \n
      • \n

        thread：\u6307\u5411\u7ebf\u7a0b\u6807\u8bc6\u7b26\u7684\u6307\u9488\u3002<\/p>\n<\/li>\n

      • \n

        attr：\u7528\u4e8e\u8bbe\u7f6e\u7ebf\u7a0b\u5c5e\u6027，\u901a\u5e38\u4e3aNULL，\u8868\u793a\u4f7f\u7528\u9ed8\u8ba4\u5c5e\u6027\u3002<\/p>\n<\/li>\n

      • \n

        start_routine：\u7ebf\u7a0b\u51fd\u6570\u7684\u8d77\u59cb\u5730\u5740，\u7ebf\u7a0b\u521b\u5efa\u540e\u4f1a\u6267\u884c\u8be5\u51fd\u6570\u3002<\/p>\n<\/li>\n

      • \n

        arg：\u4f20\u9012\u7ed9\u7ebf\u7a0b\u51fd\u6570\u7684\u53c2\u6570\u3002<\/p>\n<\/li>\n<\/ul>\n

        \u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u7ebf\u7a0b\u521b\u5efa\u793a\u4f8b：<\/p>\n

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

        void* thread_function(void* arg) {
        \n printf("Thread is running…\\\\n");
        \n sleep(2);
        \n printf("Thread is exiting…\\\\n");
        \n return NULL;
        \n}<\/p>\n

        int main() {
        \n pthread_t thread_id;
        \n int ret = pthread_create(&thread_id, NULL, thread_function, NULL);
        \n if (ret != 0) {
        \n printf("Thread creation failed!\\\\n");
        \n return 1;
        \n }
        \n printf("Main thread is running…\\\\n");
        \n pthread_join(thread_id, NULL); \/\/ \u7b49\u5f85\u7ebf\u7a0b\u7ed3\u675f
        \n printf("Main thread is exiting…\\\\n");
        \n return 0;
        \n} <\/p>\n

        \u8fd0\u884c\u7ed3\u679c：<\/p>\n

        \"\"<\/p>\n

        \u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d，\u4e3b\u7ebf\u7a0b\u521b\u5efa\u4e86\u4e00\u4e2a\u65b0\u7ebf\u7a0b，\u65b0\u7ebf\u7a0b\u6267\u884cthread_function\u51fd\u6570\u3002\u4e3b\u7ebf\u7a0b\u901a\u8fc7pthread_join\u51fd\u6570\u7b49\u5f85\u65b0\u7ebf\u7a0b\u7ed3\u675f\u3002<\/p>\n

        3.1.2 \u7ec8\u6b62\u7ebf\u7a0b<\/h5>\n

        \u7ebf\u7a0b\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u65b9\u5f0f\u7ec8\u6b62：<\/p>\n

      • \n

        \u6b63\u5e38\u8fd4\u56de：\u7ebf\u7a0b\u51fd\u6570\u6267\u884c\u5b8c\u6bd5\u5e76\u8fd4\u56de，\u7ebf\u7a0b\u81ea\u52a8\u7ec8\u6b62\u3002<\/p>\n<\/li>\n

      • \n

        \u8c03\u7528pthread_exit：\u7ebf\u7a0b\u53ef\u4ee5\u8c03\u7528pthread_exit\u51fd\u6570\u4e3b\u52a8\u7ec8\u6b62\u81ea\u5df1\u3002<\/p>\n<\/li>\n

      • \n

        \u88ab\u5176\u4ed6\u7ebf\u7a0b\u53d6\u6d88：\u5176\u4ed6\u7ebf\u7a0b\u53ef\u4ee5\u8c03\u7528pthread_cancel\u51fd\u6570\u53d6\u6d88\u6307\u5b9a\u7ebf\u7a0b\u3002<\/p>\n<\/li>\n

        \u4e0b\u9762\u662f\u4e00\u4e2a\u4f7f\u7528pthread_exit\u7ec8\u6b62\u7ebf\u7a0b\u7684\u793a\u4f8b：<\/p>\n

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

        void* thread_function(void* arg) {
        \n printf("Thread is running…\\\\n");
        \n sleep(2);
        \n printf("Thread is exiting…\\\\n");
        \n pthread_exit(NULL); \/\/ \u4e3b\u52a8\u7ec8\u6b62\u7ebf\u7a0b
        \n}<\/p>\n

        int main() {
        \n pthread_t thread_id;
        \n int ret = pthread_create(&thread_id, NULL, thread_function, NULL);
        \n if (ret != 0) {
        \n printf("Thread creation failed!\\\\n");
        \n return 1;
        \n }
        \n printf("Main thread is running…\\\\n");
        \n pthread_join(thread_id, NULL); \/\/ \u7b49\u5f85\u7ebf\u7a0b\u7ed3\u675f
        \n printf("Main thread is exiting…\\\\n");
        \n return 0;
        \n} <\/p>\n

        \u8fd0\u884c\u7ed3\u679c：<\/p>\n

        \"\"<\/p>\n

        3.2 \u7ebf\u7a0b\u7684\u5c5e\u6027<\/h4>\n

        \u7ebf\u7a0b\u7684\u5c5e\u6027\u53ef\u4ee5\u901a\u8fc7pthread_attr_t\u7ed3\u6784\u4f53\u6765\u8bbe\u7f6e\u3002\u5e38\u89c1\u7684\u7ebf\u7a0b\u5c5e\u6027\u5305\u62ec：<\/p>\n

          \n
        • \n

          \u7ebf\u7a0b\u7684\u5206\u79bb\u72b6\u6001：\u7ebf\u7a0b\u53ef\u4ee5\u662f\u53ef\u8fde\u63a5\u7684（joinable）\u6216\u5206\u79bb\u7684（detached）\u3002\u53ef\u8fde\u63a5\u7684\u7ebf\u7a0b\u5728\u7ec8\u6b62\u540e\u9700\u8981\u5176\u4ed6\u7ebf\u7a0b\u8c03\u7528pthread_join\u6765\u56de\u6536\u8d44\u6e90，\u800c\u5206\u79bb\u7684\u7ebf\u7a0b\u5728\u7ec8\u6b62\u540e\u4f1a\u81ea\u52a8\u91ca\u653e\u8d44\u6e90\u3002<\/p>\n<\/li>\n

        • \n

          \u7ebf\u7a0b\u7684\u6808\u5927\u5c0f：\u53ef\u4ee5\u8bbe\u7f6e\u7ebf\u7a0b\u7684\u6808\u5927\u5c0f\u3002<\/p>\n<\/li>\n

        • \n

          \u7ebf\u7a0b\u7684\u8c03\u5ea6\u7b56\u7565：\u53ef\u4ee5\u8bbe\u7f6e\u7ebf\u7a0b\u7684\u8c03\u5ea6\u7b56\u7565（\u5982FIFO\u3001\u8f6e\u8f6c\u7b49）\u3002<\/p>\n<\/li>\n<\/ul>\n

          \u4e0b\u9762\u662f\u4e00\u4e2a\u8bbe\u7f6e\u7ebf\u7a0b\u5c5e\u6027\u7684\u793a\u4f8b：<\/p>\n

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

          void* thread_function(void* arg) {
          \n printf("Thread is running…\\\\n");
          \n sleep(2);
          \n printf("Thread is exiting…\\\\n");
          \n return NULL;
          \n}<\/p>\n

          int main() {
          \n pthread_t thread_id;
          \n pthread_attr_t attr;
          \n pthread_attr_init(&attr); \/\/ \u521d\u59cb\u5316\u7ebf\u7a0b\u5c5e\u6027
          \n pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED); \/\/ \u8bbe\u7f6e\u7ebf\u7a0b\u4e3a\u5206\u79bb\u72b6\u6001<\/p>\n

          int ret = pthread_create(&thread_id, &attr, thread_function, NULL);
          \n if (ret != 0) {
          \n printf("Thread creation failed!\\\\n");
          \n return 1;
          \n }
          \n printf("Main thread is running…\\\\n");
          \n sleep(3); \/\/ \u4e3b\u7ebf\u7a0b\u7b49\u5f85\u4e00\u6bb5\u65f6\u95f4，\u786e\u4fdd\u5b50\u7ebf\u7a0b\u6267\u884c\u5b8c\u6bd5
          \n printf("Main thread is exiting…\\\\n");
          \n pthread_attr_destroy(&attr); \/\/ \u9500\u6bc1\u7ebf\u7a0b\u5c5e\u6027
          \n return 0;
          \n} <\/p>\n

          \u8fd0\u884c\u7ed3\u679c：<\/p>\n

          \"\"<\/p>\n

          \u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d，\u6211\u4eec\u901a\u8fc7pthread_attr_setdetachstate\u51fd\u6570\u5c06\u7ebf\u7a0b\u8bbe\u7f6e\u4e3a\u5206\u79bb\u72b6\u6001，\u8fd9\u6837\u7ebf\u7a0b\u5728\u7ec8\u6b62\u540e\u4f1a\u81ea\u52a8\u91ca\u653e\u8d44\u6e90，\u4e3b\u7ebf\u7a0b\u4e0d\u9700\u8981\u8c03\u7528pthread_join\u6765\u7b49\u5f85\u7ebf\u7a0b\u7ed3\u675f\u3002<\/p>\n

          3.3 \u7ebf\u7a0b\u7684\u53d6\u6d88<\/h4>\n

          \u7ebf\u7a0b\u53ef\u4ee5\u901a\u8fc7pthread_cancel\u51fd\u6570\u6765\u53d6\u6d88\u3002\u88ab\u53d6\u6d88\u7684\u7ebf\u7a0b\u4f1a\u5728\u4e0b\u4e00\u4e2a\u53d6\u6d88\u70b9（cancellation point）\u7ec8\u6b62\u3002\u53d6\u6d88\u70b9\u901a\u5e38\u662f\u67d0\u4e9b\u7cfb\u7edf\u8c03\u7528\u6216\u5e93\u51fd\u6570，\u5982sleep\u3001read\u3001write\u7b49\u3002<\/p>\n

          \u4e0b\u9762\u662f\u4e00\u4e2a\u7ebf\u7a0b\u53d6\u6d88\u7684\u793a\u4f8b：<\/p>\n

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

          void* thread_function(void* arg) {
          \n printf("Thread is running…\\\\n");
          \n while (1) {
          \n printf("Thread is working…\\\\n");
          \n sleep(1);
          \n }
          \n return NULL;
          \n}<\/p>\n

          int main() {
          \n pthread_t thread_id;
          \n int ret = pthread_create(&thread_id, NULL, thread_function, NULL);
          \n if (ret != 0) {
          \n printf("Thread creation failed!\\\\n");
          \n return 1;
          \n }
          \n sleep(3); \/\/ \u4e3b\u7ebf\u7a0b\u7b49\u5f853\u79d2
          \n pthread_cancel(thread_id); \/\/ \u53d6\u6d88\u7ebf\u7a0b
          \n printf("Thread has been canceled.\\\\n");
          \n pthread_join(thread_id, NULL); \/\/ \u7b49\u5f85\u7ebf\u7a0b\u7ed3\u675f
          \n printf("Main thread is exiting…\\\\n");
          \n return 0;
          \n} <\/p>\n

          \u8fd0\u884c\u7ed3\u679c：<\/p>\n

          \"\"<\/p>\n

          \u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d，\u4e3b\u7ebf\u7a0b\u57283\u79d2\u540e\u53d6\u6d88\u4e86\u5b50\u7ebf\u7a0b，\u5b50\u7ebf\u7a0b\u5728sleep\u51fd\u6570\u5904\u88ab\u53d6\u6d88\u3002<\/p>\n

          3.4 \u7ebf\u7a0b\u7684\u6e05\u7406<\/h4>\n

          \u7ebf\u7a0b\u5728\u7ec8\u6b62\u65f6\u53ef\u80fd\u9700\u8981\u6267\u884c\u4e00\u4e9b\u6e05\u7406\u64cd\u4f5c，\u5982\u91ca\u653e\u8d44\u6e90\u3001\u5173\u95ed\u6587\u4ef6\u7b49\u3002POSIX\u7ebf\u7a0b\u5e93\u63d0\u4f9b\u4e86pthread_cleanup_push\u548cpthread_cleanup_pop\u51fd\u6570\u6765\u6ce8\u518c\u548c\u6ce8\u9500\u6e05\u7406\u51fd\u6570\u3002<\/p>\n

          \u4e0b\u9762\u662f\u4e00\u4e2a\u7ebf\u7a0b\u6e05\u7406\u7684\u793a\u4f8b：<\/p>\n

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

          void cleanup_function(void* arg) {
          \n printf("Cleanup function is called: %s\\\\n", (char*)arg);
          \n}<\/p>\n

          void* thread_function(void* arg) {
          \n pthread_cleanup_push(cleanup_function, "Resource 1");
          \n pthread_cleanup_push(cleanup_function, "Resource 2");<\/p>\n

          printf("Thread is running…\\\\n");
          \n sleep(2);
          \n printf("Thread is exiting…\\\\n");<\/p>\n

          pthread_cleanup_pop(1); \/\/ \u6267\u884c\u6e05\u7406\u51fd\u6570
          \n pthread_cleanup_pop(1); \/\/ \u6267\u884c\u6e05\u7406\u51fd\u6570
          \n return NULL;
          \n}<\/p>\n

          int main() {
          \n pthread_t thread_id;
          \n int ret = pthread_create(&thread_id, NULL, thread_function, NULL);
          \n if (ret != 0) {
          \n printf("Thread creation failed!\\\\n");
          \n return 1;
          \n }
          \n pthread_join(thread_id, NULL); \/\/ \u7b49\u5f85\u7ebf\u7a0b\u7ed3\u675f
          \n printf("Main thread is exiting…\\\\n");
          \n return 0;
          \n} <\/p>\n

          \u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d，\u6211\u4eec\u4f7f\u7528pthread_cleanup_push\u6ce8\u518c\u4e86\u4e24\u4e2a\u6e05\u7406\u51fd\u6570，\u5f53\u7ebf\u7a0b\u7ec8\u6b62\u65f6，\u8fd9\u4e9b\u6e05\u7406\u51fd\u6570\u4f1a\u88ab\u81ea\u52a8\u8c03\u7528\u3002<\/p>\n

          \u56db\u3001\u7ebf\u7a0b\u5206\u79bb<\/h3>\n

          4.1 \u4ec0\u4e48\u662f\u7ebf\u7a0b\u5206\u79bb？<\/h4>\n

          \u7ebf\u7a0b\u5206\u79bb（Detached Thread）\u662f\u6307\u7ebf\u7a0b\u5728\u7ec8\u6b62\u540e\u81ea\u52a8\u91ca\u653e\u5176\u8d44\u6e90，\u800c\u4e0d\u9700\u8981\u5176\u4ed6\u7ebf\u7a0b\u8c03\u7528pthread_join\u6765\u56de\u6536\u8d44\u6e90\u3002\u5206\u79bb\u7ebf\u7a0b\u901a\u5e38\u7528\u4e8e\u4e0d\u9700\u8981\u8fd4\u56de\u7ed3\u679c\u7684\u573a\u666f\u3002<\/p>\n

          4.2 \u8bbe\u7f6e\u7ebf\u7a0b\u4e3a\u5206\u79bb\u72b6\u6001<\/h4>\n

          \u53ef\u4ee5\u901a\u8fc7pthread_detach\u51fd\u6570\u5c06\u7ebf\u7a0b\u8bbe\u7f6e\u4e3a\u5206\u79bb\u72b6\u6001\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u7ebf\u7a0b\u5206\u79bb\u7684\u793a\u4f8b：<\/p>\n

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

          void* thread_function(void* arg) {
          \n printf("Thread is running…\\\\n");
          \n sleep(2);
          \n printf("Thread is exiting…\\\\n");
          \n return NULL;
          \n}<\/p>\n

          int main() {
          \n pthread_t thread_id;
          \n int ret = pthread_create(&thread_id, NULL, thread_function, NULL);
          \n if (ret != 0) {
          \n printf("Thread creation failed!\\\\n");
          \n return 1;
          \n }
          \n pthread_detach(thread_id); \/\/ \u5c06\u7ebf\u7a0b\u8bbe\u7f6e\u4e3a\u5206\u79bb\u72b6\u6001
          \n printf("Main thread is running…\\\\n");
          \n sleep(3); \/\/ \u4e3b\u7ebf\u7a0b\u7b49\u5f85\u4e00\u6bb5\u65f6\u95f4，\u786e\u4fdd\u5b50\u7ebf\u7a0b\u6267\u884c\u5b8c\u6bd5
          \n printf("Main thread is exiting…\\\\n");
          \n return 0;
          \n} <\/p>\n

          \u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d，\u6211\u4eec\u901a\u8fc7pthread_detach\u51fd\u6570\u5c06\u7ebf\u7a0b\u8bbe\u7f6e\u4e3a\u5206\u79bb\u72b6\u6001\u3002\u5206\u79bb\u72b6\u6001\u7684\u7ebf\u7a0b\u5728\u7ec8\u6b62\u540e\u4f1a\u81ea\u52a8\u91ca\u653e\u8d44\u6e90，\u4e3b\u7ebf\u7a0b\u4e0d\u9700\u8981\u8c03\u7528pthread_join\u6765\u7b49\u5f85\u7ebf\u7a0b\u7ed3\u675f\u3002<\/p>\n

          4.3 \u7ebf\u7a0b\u5206\u79bb\u7684\u6ce8\u610f\u4e8b\u9879<\/h4>\n
        • \n

          \u8d44\u6e90\u91ca\u653e：\u5206\u79bb\u7ebf\u7a0b\u5728\u7ec8\u6b62\u65f6\u4f1a\u81ea\u52a8\u91ca\u653e\u8d44\u6e90，\u56e0\u6b64\u4e0d\u9700\u8981\u8c03\u7528pthread_join\u6765\u56de\u6536\u8d44\u6e90\u3002<\/p>\n<\/li>\n

        • \n

          \u65e0\u6cd5\u83b7\u53d6\u8fd4\u56de\u503c：\u5206\u79bb\u7ebf\u7a0b\u7684\u8fd4\u56de\u503c\u65e0\u6cd5\u88ab\u5176\u4ed6\u7ebf\u7a0b\u83b7\u53d6，\u56e0\u4e3a\u7ebf\u7a0b\u7ec8\u6b62\u540e\u8d44\u6e90\u5df2\u7ecf\u88ab\u91ca\u653e\u3002<\/p>\n<\/li>\n

        • \n

          \u7ebf\u7a0b\u72b6\u6001：\u4e00\u65e6\u7ebf\u7a0b\u88ab\u8bbe\u7f6e\u4e3a\u5206\u79bb\u72b6\u6001，\u5c31\u4e0d\u80fd\u518d\u901a\u8fc7pthread_join\u6765\u7b49\u5f85\u7ebf\u7a0b\u7ed3\u675f\u3002<\/p>\n<\/li>\n

          \u4e94\u3001\u7ebf\u7a0b\u7684\u8c03\u5ea6<\/h3>\n

          5.1 \u7ebf\u7a0b\u7684\u8c03\u5ea6\u7b56\u7565<\/h4>\n

          Linux\u4e2d\u7684\u7ebf\u7a0b\u8c03\u5ea6\u7b56\u7565\u4e3b\u8981\u6709\u4ee5\u4e0b\u51e0\u79cd：<\/p>\n

            \n
          • \n

            SCHED_FIFO：\u5148\u8fdb\u5148\u51fa\u8c03\u5ea6\u7b56\u7565，\u4f18\u5148\u7ea7\u9ad8\u7684\u7ebf\u7a0b\u4f1a\u4e00\u76f4\u8fd0\u884c，\u76f4\u5230\u5b83\u4e3b\u52a8\u653e\u5f03CPU\u3002<\/p>\n<\/li>\n

          • \n

            SCHED_RR：\u8f6e\u8f6c\u8c03\u5ea6\u7b56\u7565，\u4f18\u5148\u7ea7\u9ad8\u7684\u7ebf\u7a0b\u4f1a\u8fd0\u884c\u4e00\u6bb5\u65f6\u95f4（\u65f6\u95f4\u7247），\u7136\u540e\u8ba9\u51faCPU\u7ed9\u5176\u4ed6\u76f8\u540c\u4f18\u5148\u7ea7\u7684\u7ebf\u7a0b\u3002<\/p>\n<\/li>\n

          • \n

            SCHED_OTHER：\u9ed8\u8ba4\u7684\u8c03\u5ea6\u7b56\u7565，\u57fa\u4e8e\u65f6\u95f4\u7247\u7684\u52a8\u6001\u4f18\u5148\u7ea7\u8c03\u5ea6\u3002<\/p>\n<\/li>\n<\/ul>\n

            5.2 \u8bbe\u7f6e\u7ebf\u7a0b\u7684\u8c03\u5ea6\u7b56\u7565<\/h4>\n

            \u53ef\u4ee5\u901a\u8fc7pthread_setschedparam\u51fd\u6570\u6765\u8bbe\u7f6e\u7ebf\u7a0b\u7684\u8c03\u5ea6\u7b56\u7565\u548c\u4f18\u5148\u7ea7\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u8bbe\u7f6e\u7ebf\u7a0b\u8c03\u5ea6\u7b56\u7565\u7684\u793a\u4f8b：<\/p>\n

            #include <stdio.h>
            \n#include <pthread.h>
            \n#include <sched.h>
            \n#include <unistdh><\/p>\n

            void* thread_function(void* arg) {
            \n printf("Thread is running…\\\\n");
            \n sleep(2);
            \n printf("Thread is exiting…\\\\n");
            \n return NULL;
            \n}<\/p>\n

            int main() {
            \n pthread_t thread_id;
            \n pthread_attr_t attr;
            \n struct sched_param param;<\/p>\n

            pthread_attr_init(&attr);
            \n pthread_attr_setschedpolicy(&attr, SCHED_FIFO); \/\/ \u8bbe\u7f6e\u8c03\u5ea6\u7b56\u7565\u4e3aFIFO
            \n param.sched_priority = 50; \/\/ \u8bbe\u7f6e\u4f18\u5148\u7ea7
            \n pthread_attr_setschedparam(&attr, &param);<\/p>\n

            int ret = pthread_create(&thread_id, &attr, thread_function, NULL);
            \n if (ret != 0) {
            \n printf("Thread creation failed!\\\\n");
            \n return 1;
            \n }
            \n pthread_join(thread_id, NULL); \/\/ \u7b49\u5f85\u7ebf\u7a0b\u7ed3\u675f
            \n printf("Main thread is exiting…\\\\n");
            \n pthread_attr_destroy(&attr); \/\/ \u9500\u6bc1\u7ebf\u7a0b\u5c5e\u6027
            \n return 0;
            \n} <\/p>\n

            \u8fd0\u884c\u7ed3\u679c：<\/p>\n

            \"\"<\/p>\n

            \u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d，\u6211\u4eec\u901a\u8fc7pthread_attr_setschedpolicy\u51fd\u6570\u5c06\u7ebf\u7a0b\u7684\u8c03\u5ea6\u7b56\u7565\u8bbe\u7f6e\u4e3aSCHED_FIFO，\u5e76\u901a\u8fc7pthread_attr_setschedparam\u51fd\u6570\u8bbe\u7f6e\u4e86\u7ebf\u7a0b\u7684\u4f18\u5148\u7ea7\u3002<\/p>\n

            \u4e94\u3001\u603b\u7ed3<\/h3>\n

            \u672c\u6587\u8be6\u7ec6\u4ecb\u7ecd\u4e86Linux\u4e2d\u7ebf\u7a0b\u7684\u57fa\u672c\u6982\u5ff5\u548c\u7ebf\u7a0b\u63a7\u5236\u7684\u76f8\u5173\u77e5\u8bc6，\u5305\u62ec\u7ebf\u7a0b\u7684\u521b\u5efa\u4e0e\u7ec8\u6b62\u3001\u7ebf\u7a0b\u5c5e\u6027\u3001\u7ebf\u7a0b\u7684\u53d6\u6d88\u4e0e\u6e05\u7406\u3001\u7ebf\u7a0b\u7684\u8c03\u5ea6\u7b49\u5185\u5bb9\u3002\u901a\u8fc7\u4ee3\u7801\u793a\u4f8b，\u8bfb\u8005\u53ef\u4ee5\u66f4\u597d\u5730\u7406\u89e3\u8fd9\u4e9b\u6982\u5ff5，\u5e76\u5728\u5b9e\u9645\u7f16\u7a0b\u4e2d\u5e94\u7528\u8fd9\u4e9b\u77e5\u8bc6\u3002<\/p>\n

            \u6709\u5173\u7ebf\u7a0b\u7684\u4e00\u4e9b\u57fa\u672c\u6982\u5ff5\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e0b\u9762\u7684\u56fe\u7247\u81ea\u884c\u67e5\u770b\u4e00\u4e0b，\u6bd4\u5982\u7ebf\u7a0b\u4e0e\u8fdb\u7a0b\u4e4b\u95f4\u7684\u5730\u5740\u7a7a\u95f4\u5206\u914d\u95ee\u9898，\u7ebf\u7a0b\u6240\u62e5\u6709\u7684\u72ec\u7acb\u7684\u6808\u533a\u662f\u600e\u4e48\u4e00\u56de\u4e8b\u7b49<\/p>\n

            \"\"<\/p>\n

            \u611f\u8c22\u5404\u4f4d\u5927\u4f6c\u89c2\u770b，\u521b\u4f5c\u4e0d\u6613，\u8fd8\u8bf7\u5404\u4f4d\u5927\u4f6c\u70b9\u8d5e\u652f\u6301！！！<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

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