{"id":87957,"date":"2026-07-31T08:09:27","date_gmt":"2026-07-31T00:09:27","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/87957.html"},"modified":"2026-07-31T08:09:27","modified_gmt":"2026-07-31T00:09:27","slug":"%e3%80%90linux-%e7%af%87%e3%80%91%e6%95%b0%e5%ad%97%e4%b8%96%e7%95%8c%e7%9a%84%e9%80%9a%e4%bf%a1%e7%ae%a1%e9%81%93-%e5%8c%bf%e5%90%8d%e7%ae%a1%e9%81%93%e4%b8%8e%e8%bf%9b%e7%a8%8b","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/87957.html","title":{"rendered":"\u3010Linux \u7bc7\u3011\u6570\u5b57\u4e16\u754c\u7684\u901a\u4fe1\u7ba1\u9053 \u2014\u2014 \u533f\u540d\u7ba1\u9053\u4e0e\u8fdb\u7a0b\u6c60\u6df1\u5ea6\u5b9e\u6218\u89e3\u6790"},"content":{"rendered":"

\"\"<\/p>\n

\u4e8e\u6b64\u6b62？：\u4e2a\u4eba\u4e3b\u9875<\/p>\n

\"\"\u2744\ufe0f\u4e2a\u4eba\u4e13\u680f\u4f20\u9001\u95e8：\u300aLinux\u7bc7\u300b \u300aQT\u767e\u65e5\u7b51\u57fa\u7bc7\u300b \u300a\u7b97\u6cd5\u7bc7\u300b\u00a0<\/p>\n

\u300aC++\u4e0eSTL\u5256\u6790\u7bc7\u300b \u300a\u6570\u636e\u7ed3\u6784\u7bc7\u300b \u300aPython\u57fa\u7840\u7bc7\u300b<\/p>\n

\u2b50\ufe0f\u7eb5\u6709\u72c2\u98ce\u62d4\u5730\u8d77，\u6211\u4ea6\u4e58\u98ce\u7834\u4e07\u91cc\u2b50\ufe0f<\/p>\n

\"\"<\/p>\n

\n

\u533f\u540d\u7ba1\u9053\u4e0e\u8fdb\u7a0b\u6c60<\/span><\/h2>\n

\u76ee\u5f55\/\u7d22\u5f15：<\/span><\/h2>\n

\u76ee\u5f55<\/p>\n

\u533f\u540d\u7ba1\u9053\u4e0e\u8fdb\u7a0b\u6c60<\/p>\n

\u76ee\u5f55\/\u7d22\u5f15：<\/p>\n

\u4e00\u3001\u8fdb\u7a0b\u95f4\u901a\u4fe1\u7684\u80cc\u666f<\/p>\n

\u4e8c\u3001\u8fdb\u7a0b\u95f4\u901a\u4fe1\u4ecb\u7ecd<\/p>\n

\u4e09\u3001\u600e\u4e48\u8fdb\u884c\u901a\u4fe1？<\/p>\n

\u56db\u3001\u8fdb\u7a0b\u95f4\u901a\u4fe1\u7684\u53d1\u5c55<\/p>\n

\u4e94\u3001\u8fdb\u7a0b\u95f4\u901a\u4fe1\u7684\u5206\u7c7b<\/p>\n

1.\u7ba1\u9053：<\/p>\n

2.system V IPC<\/p>\n

3.POSIX IPC<\/p>\n

\u516d\u3001\u7ba1\u9053<\/p>\n

\u4ec0\u4e48\u662f\u7ba1\u9053？<\/p>\n

\u547d\u4ee4\u884c\u4e2d\u7ba1\u9053\u7684\u4f7f\u7528<\/p>\n

\u4e03\u3001\u533f\u540d\u7ba1\u9053<\/p>\n

1.\u901a\u4fe1\u65b9\u5f0f<\/p>\n

2.\u901a\u4fe1\u7684\u539f\u7406<\/p>\n

3.\u521b\u5efa\u533f\u540d\u7ba1\u9053<\/p>\n

4.\u5229\u7528\u533f\u540d\u7ba1\u9053\u8fdb\u884c\u8fdb\u7a0b\u95f4\u7684\u901a\u4fe1<\/p>\n

\u4efb\u52a11.\u7ba1\u9053\u7684\u521b\u5efa\u3002<\/p>\n

\u4efb\u52a12.\u521b\u5efa\u5b50\u8fdb\u7a0b\u3002<\/p>\n

\u4efb\u52a13：\u5bf9\u6587\u4ef6\u7684\u8bfb\u5199\u64cd\u4f5c\u3002<\/p>\n

\u6e90\u7801：<\/p>\n

\u516b\u3001\u533f\u540d\u7ba1\u9053\u76845\u4e2d\u7279\u6027<\/p>\n

\u4e5d\u3001\u7ba1\u9053\u7684\u56db\u79cd\u901a\u4fe1\u60c5\u51b5<\/p>\n

\u5341\u3001\u8fdb\u7a0b\u6c60\u7684\u7f16\u5199<\/p>\n

\u9a8c\u8bc1\u6211\u4eec\u7ba1\u9053\u7684\u5bb9\u91cf：<\/p>\n

\u6587\u4ef6\u7c7b\u578b：<\/p>\n

\u8fdb\u7a0b\u6c60\u7684\u7ed3\u6784<\/p>\n

\u8fdb\u7a0b\u6c60\u4ee3\u7801\u5256\u6790：<\/p>\n

\u7ed3\u6784\u6846\u67b6<\/p>\n

\u6210\u5458\u53d8\u91cf：<\/p>\n

\u8fdb\u7a0b\u6c60\u7684\u6570\u91cf<\/p>\n

\u521b\u5efa\u8fdb\u7a0b\u6c60：<\/p>\n

\u5b50\u8fdb\u7a0b\u7684\u5de5\u4f5c<\/p>\n

\u8fd0\u884c\u8fdb\u7a0b\u6c60：<\/p>\n

\u4fe1\u9053\u7684\u9009\u62e9：<\/p>\n

\u8fdb\u7a0b\u6c60\u7684\u9500\u6bc1：<\/p>\n

Bug？<\/p>\n

\u8fdb\u7a0b\u6c60\u7684\u6e90\u7801：<\/p>\n

ProccessPool.hpp<\/p>\n

tasktable.hpp:<\/p>\n

test.cc<\/p>\n

\n

\u4e00\u3001\u8fdb\u7a0b\u95f4\u901a\u4fe1\u7684\u80cc\u666f<\/span><\/h2>\n

Linux \u4e2d\u6bcf\u4e2a\u8fdb\u7a0b\u62e5\u6709\u72ec\u7acb\u865a\u62df\u5730\u5740\u7a7a\u95f4，\u8fdb\u7a0b\u5185\u5b58\u76f8\u4e92\u9694\u79bb，\u65e0\u6cd5\u76f4\u63a5\u8bbf\u95ee\u5bf9\u65b9\u6570\u636e\u3002<\/p>\n

\u5b9e\u9645\u5f00\u53d1\u7ecf\u5e38\u9700\u8981\u591a\u8fdb\u7a0b\u534f\u540c\u5de5\u4f5c\u3001\u5206\u53d1\u4efb\u52a1\u3001\u4ea4\u6362\u6570\u636e，\u56e0\u6b64\u8bde\u751f\u4e86\u8fdb\u7a0b\u95f4\u901a\u4fe1（IPC）\u3002<\/p>\n

\u533f\u540d\u7ba1\u9053\u662f\u7ecf\u5178\u8f7b\u91cf IPC \u65b9\u5f0f，\u9002\u7528\u4e8e\u5b58\u5728\u4eb2\u7f18\u5173\u7cfb\u7684\u7236\u5b50\u8fdb\u7a0b，\u975e\u5e38\u9002\u5408\u7528\u6765\u5b9e\u73b0\u8fdb\u7a0b\u6c60\u4efb\u52a1\u5206\u53d1\u3002<\/p>\n

Linux \u8fdb\u7a0b\u5177\u5907\u5185\u5b58\u9694\u79bb\u7279\u6027，\u8fdb\u7a0b\u4e4b\u95f4\u4e0d\u80fd\u76f4\u63a5\u5171\u4eab\u6570\u636e\u3002\u60f3\u8981\u5b9e\u73b0\u591a\u8fdb\u7a0b\u534f\u540c\u3001\u6784\u5efa\u8fdb\u7a0b\u6c60\u8c03\u5ea6\u4efb\u52a1，\u5c31\u9700\u8981\u8fdb\u7a0b\u95f4\u901a\u4fe1\u3002\u533f\u540d\u7ba1\u9053\u4f5c\u4e3a\u7b80\u6d01\u9ad8\u6548\u7684\u901a\u4fe1\u65b9\u6848，\u5e38\u88ab\u7528\u4e8e\u7236\u5b50\u8fdb\u7a0b\u4e4b\u95f4\u7684\u6570\u636e\u4f20\u8f93\u3002<\/p>\n

\u4ec0\u4e48\u662f\u901a\u4fe1\u5462？<\/p>\n

\u901a\u4fe1\u5c31\u662f\u5c06\u4fe1\u606f\u4ece\u53d1\u9001\u65b9\u4f20\u9012\u5230\u63a5\u6536\u65b9\u7684\u8fc7\u7a0b\u3002 \u5206\u4e3a\u6a21\u62df\u901a\u4fe1\u3001\u6570\u5b57\u901a\u4fe1；\u4e5f\u53ef\u5206\u4e3a\u6709\u7ebf\u901a\u4fe1\u3001\u65e0\u7ebf\u901a\u4fe1\u3002 \u4e00\u5957\u901a\u4fe1\u7cfb\u7edf\u5305\u542b\u4fe1\u6e90\u3001\u53d1\u9001\u8bbe\u5907\u3001\u4fe1\u9053\u3001\u63a5\u6536\u8bbe\u5907\u3001\u4fe1\u5bbf，\u4f20\u8f93\u8fc7\u7a0b\u4f1a\u53d7\u5230\u566a\u58f0\u5e72\u6270\u3002\u65e5\u5e38\u624b\u673a\u3001\u7f51\u7edc\u3001\u84dd\u7259\u3001\u5149\u7ea4\u7b49\u90fd\u5c5e\u4e8e\u901a\u4fe1\u5e94\u7528<\/p>\n

\n

\u4e8c\u3001\u8fdb\u7a0b\u95f4\u901a\u4fe1\u4ecb\u7ecd<\/span><\/h2>\n

1.\u6570\u636e\u4f20\u8f93：\u4e00\u4e2a\u8fdb\u7a0b\u9700\u8981\u5c06\u6d88\u606f\u53d1\u9001\u7ed9\u53e6\u4e00\u4e2a\u8fdb\u7a0b\u3002<\/p>\n

2.\u8d44\u6e90\u5171\u4eab：\u591a\u4e2a\u8fdb\u7a0b\u5171\u4eab\u540c\u4e00\u4efd\u8d44\u6e90\u3002\u00a0\u00a0<\/p>\n

3.\u901a\u77e5\u4e8b\u4ef6：\u4e00\u4e2a\u8fdb\u7a0b\u9700\u8981\u5411\u53e6\u4e00\u4e2a\u6216\u8005\u53e6\u4e00\u7ec4\u8fdb\u7a0b\u53d1\u6d88\u606f，\u901a\u77e5\u4ed6\u4eec\u53d1\u751f\u4e86\u67d0\u4e9b\u4e8b\u5e76\u6267\u884c\u67d0\u79cd\u4efb\u52a1（\u5b50\u8fdb\u7a0b\u9000\u51fa\u65f6\u4f1a\u5c06\u81ea\u5df1\u7684\u9000\u51fa\u4fe1\u606f\u544a\u8bc9\u7236\u8fdb\u7a0b）\u3002<\/p>\n

4.\u8fdb\u7a0b\u63a7\u5236：\u6709\u4e9b\u8fdb\u7a0b\u5e0c\u671b\u81ea\u5df1\u53bb\u63a7\u5236\u53e6\u4e00\u4e2a\u8fdb\u7a0b（Debug\u8fdb\u7a0b）\u6b64\u65f6\u63a7\u5236\u8fdb\u7a0b\u80fd\u591f\u62e6\u622a\u53e6\u4e00\u4e2a\u8fdb\u7a0b\u7684\u6240\u6709\u9677\u5165\u548c\u5f02\u5e38 ，\u5e76\u80fd\u591f\u901a\u77e5\u4ed6\u4eec\u4ed6\u7684\u72b6\u6001\u53d1\u751f\u6539\u53d8\u3002<\/p>\n

\n

\u4e09\u3001\u600e\u4e48\u8fdb\u884c\u901a\u4fe1？<\/span><\/h2>\n

\u6211\u4eec\u5148\u6765\u8bf4\u4e00\u8bf4\u8fdb\u7a0b\u95f4\u901a\u4fe1\u7684\u672c\u8d28：\u8ba9\u4e0d\u540c\u7684\u8fdb\u7a0b\u770b\u5230\u540c\u4e00\u4efd\u7684\u8d44\u6e90\u3002（\u5185\u5b58）\u8fd9\u5206\u8d44\u6e90\u7531\u6211\u4eecos\u8fdb\u884c\u5f00\u8f9f\u7a7a\u95f4\u3002<\/p>\n

os\u4f1a\u7ed9\u6211\u4eec\u8fdb\u884c\u63d0\u4f9b\u5bf9\u5e94\u7684\u7cfb\u7edf\u8c03\u7528\u7684\u63a5\u53e3\u3002\u6211\u4eec\u53bb\u8fdb\u884c\u8c03\u7528\u8fd9\u5757\u63a5\u53e3\u53bb\u5b8c\u6210\u5bf9\u5e94\u7684\u64cd\u4f5c\u3002<\/p>\n

os\u5728\u8bbe\u8ba1\u8fd9\u5757\u7684\u63a5\u53e3\u7684\u65f6\u5019\u4f1a\u7edf\u4e00\u8bbe\u7f6e\u8fd9\u5757\u7684\u63a5\u53e3\u6765\u8fdb\u884c\u63a7\u5236\u8fd9\u4efd\u8d44\u6e90\u3002<\/p>\n

\n

\u56db\u3001\u8fdb\u7a0b\u95f4\u901a\u4fe1\u7684\u53d1\u5c55<\/span><\/h2>\n

1.\u7ba1\u9053\u3002<\/p>\n

2.system V\u8fdb\u7a0b\u95f4\u7684\u901a\u4fe1\u3002<\/p>\n

3.POSIX\u8fdb\u7a0b\u95f4\u7684\u901a\u4fe1\u3002<\/p>\n

\n

\u4e94\u3001\u8fdb\u7a0b\u95f4\u901a\u4fe1\u7684\u5206\u7c7b<\/span><\/h2>\n

1.\u7ba1\u9053：<\/span><\/h3>\n

\u533f\u540d\u7ba1\u9053pipe<\/p>\n

\u547d\u540d\u7ba1\u9053<\/p>\n

2.system V IPC<\/span><\/h3>\n

-system V\u6d88\u606f\u961f\u5217<\/p>\n

-system V\u5171\u4eab\u5185\u5b58<\/p>\n

-system V\u4fe1\u53f7\u91cf<\/p>\n

3.POSIX IPC<\/span><\/h3>\n

-\u6d88\u606f\u961f\u5217<\/p>\n

-\u5171\u4eab\u5185\u5b58<\/p>\n

-\u4fe1\u53f7\u91cf<\/p>\n

-\u4e92\u65a5\u9501<\/p>\n

-\u6761\u4ef6\u53d8\u91cf<\/p>\n

-\u8bfb\u5199\u9501<\/p>\n

\n

\u516d\u3001\u7ba1\u9053<\/span><\/h2>\n

\u4ec0\u4e48\u662f\u7ba1\u9053？<\/span><\/h3>\n

\u7ba1\u9053\u662fUnix\u6700\u53e4\u8001\u7684\u8fdb\u7a0b\u95f4\u901a\u4fe1\u7684\u5f62\u5f0f\u3002<\/p>\n

\u6211\u4eec\u628a\u4ece\u4e00\u4e2a\u8fdb\u7a0b\u8fde\u63a5\u5230\u53e6\u4e00\u4e2a\u8fdb\u7a0b\u7684\u4e00\u4e2a\u6570\u636e\u6d41\u53eb\u505a\u7ba1\u9053\u3002<\/p>\n

\u7ba1\u9053\u662f\u5185\u6838\u7ea7\u7684\u3002<\/p>\n

\"\"<\/p>\n

\u547d\u4ee4\u884c\u4e2d\u7ba1\u9053\u7684\u4f7f\u7528<\/span><\/h3>\n

\u6211\u4eec\u4e0b\u9762\u7684"|"\u5c31\u4ee3\u8868\u7ba1\u9053，\u8fd9\u4e2a\u547d\u4ee4\u7684\u610f\u601d\u662f\u6211\u4eec\u9996\u5148\u4f7f\u7528ls -l\u6253\u5370\u51fa\u5f53\u524d\u76ee\u5f55\u7684\u6240\u6709\u7684\u6587\u4ef6，\u5728\u4f7f\u7528\u6211\u4eec\u7684grep\u8fc7\u6ee4\u51fa\u6211\u4eec\u60f3\u8981\u7684\u6587\u4ef6\u3002\u8fd9\u6837\u6211\u4eec\u5bf9\u5e94\u7684\u547d\u4ee4\u884c\u5c31\u80fd\u7ed9\u6211\u4eec\u6253\u5370\u51fa\u6765\u5bf9\u5e94\u7684\u6587\u4ef6\u4fe1\u606f，\u4e0b\u9762\u5c31\u662f\u6211\u4eec\u7ba1\u9053\u7684\u4e00\u4e2a\u7b80\u5355\u7684\u4f7f\u7528，\u4ee5\u540e\u6211\u4eec\u4f1a\u7528\u4e8eps\u7b49\u547d\u4ee4\u4e2d，\u8ba9\u6211\u4eec\u66f4\u5feb\u66f4\u597d\u7684\u8fc7\u6ee4\u51fa\u6211\u4eec\u60f3\u8981\u7684\u4fe1\u606f\u3002<\/p>\n

ls -l | grep code.c<\/p>\n

\"\"<\/p>\n

\n

\u4e03\u3001\u533f\u540d\u7ba1\u9053<\/span><\/h2>\n

\u533f\u540d\u7ba1\u9053\u662f\u6211\u4eec\u5f53\u65f6\u57fa\u4e8e\u73b0\u6709\u7684\u6280\u672f（\u6587\u4ef6\u64cd\u4f5c）\u76f4\u63a5\u8fdb\u884c\u901a\u4fe1\u3002<\/p>\n

1.\u901a\u4fe1\u65b9\u5f0f<\/span><\/h3>\n

1.\u57fa\u4e8e\u6587\u4ef6\u7684\u7ba1\u9053\u901a\u4fe1\u3002<\/p>\n

2.\u57fa\u4e8esystem\u7684\u672c\u673a\u901a\u4fe1\u3002<\/p>\n

2.\u901a\u4fe1\u7684\u539f\u7406<\/span><\/h3>\n

\u533f\u540d\u7ba1\u9053\u901a\u5e38\u662f\u6211\u4eec\u7236\u5b50\u95f4\u7684\u901a\u4fe1\u3002<\/p>\n

\u6211\u4eec\u5bf9\u5e94\u521b\u5efa\u5b50\u8fdb\u7a0b\u65f6\u6211\u4eec\u7684\u5b50\u8fdb\u7a0b\u4f1a\u62f7\u8d1d\u7236\u8fdb\u7a0b\u7684\u6570\u636e，\u8fdb\u884c\u64cd\u4f5c\u3002\u62f7\u8d1d\u5230\u7684\u5185\u5bb9\u662f\u548c\u7236\u8fdb\u7a0b\u662f\u4e00\u6837\u7684，\u53ea\u6709\u6211\u4eec\u8fdb\u884c\u4fee\u6539\u7684\u65f6\u5019\u624d\u4f1a\u53d1\u751f\u5bf9\u5e94\u7684\u5199\u5b9e\u8003\u5457\u3002\u90a3\u4e48\u8fd9\u6837\u6211\u4eec\u5728\u521b\u5efa\u5b50\u8fdb\u7a0b\u7684\u65f6\u5019\u6210\u529f\u8ba9\u6211\u4eec\u7684\u4e0d\u540c\u7684\u8fdb\u7a0b\u770b\u5230\u540c\u4e00\u4efd\u8d44\u6e90\u3002\u90a3\u4e48\u6211\u4eec\u5c31\u53ef\u4ee5\u8fdb\u884c\u5bf9\u5e94\u7684\u8fdb\u7a0b\u95f4\u7684\u901a\u4fe1\u4e86\u3002<\/span><\/p>\n

\u4e0b\u56fe\u6709\u4e2a\u5c0f\u95ee\u9898\u6211\u4eec\u5728\u521b\u5efa\u5bf9\u5e94\u7684\u5b50\u8fdb\u7a0b\u7684\u65f6\u5019，\u6211\u4eec\u7684\u6587\u4ef6\u8fd8\u8981\u5728\u91cd\u65b0\u7684\u8fdb\u884c\u6df1\u62f7\u8d1d\u5417？<\/p>\n

\u7b54\u6848\u662f\u4e0d\u7528\u7684，\u6211\u4eec\u5bf9\u5e94\u7684struct_file\u8fd9\u4e2a\u8868\u50a8\u5b58\u7684\u662f\u6587\u4ef6\u7684\u63cf\u8ff0\u7b26，\u6211\u4eec\u53ea\u8981\u901a\u8fc7\u5bf9\u5e94\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u5c31\u80fd\u627e\u5230\u5bf9\u5e94\u7684\u6587\u4ef6， \u6211\u4eec\u540e\u9762\u4ed6\u4f1a\u4e0d\u4f1a\u6253\u5f00\u6587\u4ef6\u548c\u6211\u4eec\u7684\u8fdb\u7a0b\u6ca1\u6709\u4efb\u4f55\u5173\u7cfb\u3002\u56e0\u4e3a\u6211\u4eec\u524d\u9762\u5c5e\u4e8e\u8fdb\u7a0b\u7ba1\u7406，\u6211\u4eec\u540e\u9762\u7684\u4e00\u90e8\u5206\u5c5e\u4e8e\u6587\u4ef6\u7ba1\u7406\u3002\u6240\u4ee5\u6211\u4eec\u521b\u5efa\u5b50\u8fdb\u7a0b\u65f6\u4f1a\u5c06\u6587\u4ef6\u63cf\u8ff0\u7b26\u8868\u7ed9\u6211\u4eec\u8fdb\u884c\u62f7\u8d1d\u4e00\u4efd，\u8fd9\u6b21\u7684\u62f7\u8d1d\u5c5e\u4e8e\u662f\u6d45\u62f7\u8d1d\u3002<\/p>\n

\"\"<\/p>\n

\u6211\u4eec\u53ef\u4ee5\u5148\u521b\u5efa\u4e00\u4e2a\u7ba1\u9053， \u7136\u540e\u6211\u4eec\u7684\u521b\u5efa\u4e00\u4e2a\u5b50\u8fdb\u7a0b，\u8fd9\u662f\u6211\u4eec\u7684\u7236\u5b50\u8fdb\u7a0b\u7684\u8bfb\u5199\u7aef\u90fd\u94fe\u63a5\u5230\u8fd9\u4e2a\u7ba1\u9053\u8fd9\u91cc， \u8fd9\u65f6\u5019\u6211\u4eec\u5c06\u7236\u8fdb\u7a0b\u7684\u8bfb\u7aef\u5173\u95ed， \u6211\u4eec\u5c06\u5b50\u8fdb\u7a0b\u7684\u5199\u7aef\u8fdb\u884c\u5173\u95ed，\u8fd9\u6837\u6211\u4eec\u5c31\u80fd\u8ba9\u7236\u8fdb\u7a0b\u8fdb\u884c\u5411\u7ba1\u9053\u4e2d\u5199\u5185\u5bb9，\u6211\u4eec\u7684\u5b50\u8fdb\u7a0b\u5411\u7ba1\u9053\u4e2d\u8bfb\u5185\u5bb9\u8fd9\u6837\u6211\u4eec\u5c31\u80fd\u5b8c\u6210\u5bf9\u5e94\u7684\u8fdb\u7a0b\u95f4\u7684\u901a\u4fe1\u4e86，\u5e76\u4e14\u770b\u5230\u4e86\u540c\u4e00\u4efd\u8d44\u6e90（\u7ba1\u9053）（\u8fd9\u4efd\u8d44\u6e90\u662f\u6211\u7684\u5b50\u8fdb\u7a0b\u7ee7\u627f\u4e86\u7236\u8fdb\u7a0b\u7684\u8d44\u6e90）\u3002\u540c\u7406\u6211\u4eec\u7684\u7236\u8fdb\u7a0b\u7ba1\u5199，\u5b50\u8fdb\u7a0b\u5173\u8bfb\u4e5f\u662f\u53ef\u4ee5\u7684\u3002<\/p>\n

\"\"<\/p>\n

3.\u521b\u5efa\u533f\u540d\u7ba1\u9053<\/span><\/h3>\n

\u6211\u4eec\u8fd9\u8fb9\u4f7f\u7528pipe\u8fdb\u884c\u533f\u540d\u7ba1\u9053\u7684\u521b\u5efa\u6211\u4eec\u8fd9\u8fb9\u4f7f\u7528pipe\u8fdb\u884c\u533f\u540d\u7ba1\u9053\u7684\u521b\u5efa<\/p>\n

\u6211\u4eec\u9996\u5148\u770b\u4e00\u4e0b\u6211\u4eec\u7684\u624b\u518c：<\/p>\n

man 2 pipe <\/p>\n

\u6211\u4eec\u8fd9\u9700\u8981\u4f20\u8fc7\u53bb\u4e00\u4e2aint\u7c7b\u578b\u7684\u6570\u7ec4， \u4ed6\u4f1a\u5c06\u6211\u4eec\u5bf9\u5e94\u521b\u5efa\u597d\u7684\u7ba1\u9053\u76842\u6587\u952e\u63cf\u8ff0\u7b26\u8be5\u6211\u4eec\u8fdb\u884c\u8fd4\u56de，2\u4e2a\u4e00\u4e2a\u8bfb\u7aef，\u4e00\u4e2a\u5199\u7aef\u3002\u6211\u4eec\u5bf9\u5e94\u521b\u5efa\u51fa\u6765\u7684\u7ba1\u9053\u6ca1\u6709\u540d\u5b57\u56e0\u6b64\u53eb\u505a\u533f\u540d\u7ba1\u9053\u3002<\/p>\n

\"\"<\/p>\n

\u8fd4\u56de\u503c：<\/p>\n

\u6210\u529f\u8fd4\u56de0，\u5931\u8d25\u8fd4\u56de-1，\u9519\u8bef\u7801\u88ab\u8bbe\u7f6e\u3002<\/p>\n

\"\"<\/p>\n

4.\u5229\u7528\u533f\u540d\u7ba1\u9053\u8fdb\u884c\u8fdb\u7a0b\u95f4\u7684\u901a\u4fe1<\/span><\/h3>\n

\u4efb\u52a11.\u7ba1\u9053\u7684\u521b\u5efa\u3002<\/span><\/h4>\n

ok，\u8fd9\u91cc\u6211\u4eec\u5728\u770b\u4e00\u4e0b\u6587\u6863\u3002\u5934\u6587\u4ef6<unistd.h>,\u8981\u5148\u521b\u5efa\u4e00\u4e2afd\u6709\u4e24\u4e2a\u7a7a\u95f4\u7684\u6570\u7ec4\u3002<\/p>\n

\u7136\u540e\u6211\u4eec\u8c03\u7528pipe\u3002<\/p>\n

\"\"<\/p>\n

\u6211\u4eec\u53ef\u4ee5\u5c06\u6211\u4eec\u5bf9\u5e94\u7ba1\u9053\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u7ed9\u6253\u5370\u51fa\u6765\u5bf9\u5e94\u662f\u51e0\u53f7\u6587\u4ef6\u63cf\u8ff0\u7b26\u3002<\/p>\n

int main() {
\n int status[2] = {0};\/\/\u521b\u5efa\u5bf9\u5e94\u7684\u6570\u7ec4
\n int ret_pipe = pipe(status);\/\/\u521b\u5efa\u7ba1\u9053
\n if (ret_pipe < 0) {\/\/\u5224\u65ad\u662f\u5426\u6210\u529f
\n perror("pipe false");
\n exit(1);
\n }
\n std::cout<< status[0]<<":"<<status[1]<<std::endl;\/\/\u5224\u65ad\u5bf9\u5e94\u7684\u6570\u7ec4\u7684\u5185\u5bb9<\/p>\n

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

\u6ce8\u610f\u8fd9\u91cc\u7533\u8bf7\u7684\u662f3\u53f7\u548c4\u53f7， \u8fd9\u4e24\u4e2a\u53f7\u5176\u4e2d3\u53f7\u662f\u8bfb\u7aef，\u6211\u4eec\u53ef\u4ee5\u8fd9\u6837\u8fdb\u884c\u8bb0\u5fc6， status\u5bf9\u5e94\u7684status[0]\u8fd9\u4e2a0\u50cf\u4e00\u4e2a\u5634\u5df4\u5728\u8bfb，\u6240\u4ee5\u4ed6\u5c31\u662f\u6211\u4eec\u5bf9\u5e94\u7684\u8bfb\u7aef\u3002\u4e5f\u5c31\u662f\u6211\u4eec\u5bf9\u5e94\u76843\u53f7\u6587\u4ef6\u63cf\u8ff0\u7b26\u3002<\/p>\n

\u6211\u4eec\u5bf9\u5e94\u7684status[1]\u50cf\u4e00\u652f\u7b14，\u6211\u4eec\u8981\u5199\u4e00\u4e9b\u4e1c\u897f，\u4e5f\u5c31\u4ee3\u8868\u6211\u4eec\u76844\u53f7\u6587\u4ef6\u63cf\u8ff0\u7b26\u3002\u4ed6\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u4e5f\u662f\u652f\u6301\u5c31\u8fd1\u539f\u5219\u7684，\u8c01\u5c0f\u6709\u9650\u5148\u62e9\u8c01\u3002<\/p>\n

\"\"<\/p>\n

\u4efb\u52a12.\u521b\u5efa\u5b50\u8fdb\u7a0b\u3002<\/span><\/h4>\n

\u4e0b\u4e00\u6b65\u6211\u4eec\u5c31\u8981\u521b\u5efa\u5bf9\u5e94\u7684\u5b50\u8fdb\u7a0b\u6765\u5b8c\u6210\u5bf9\u5e94\u7684\u4efb\u52a1\u4e86：<\/p>\n

\u6211\u4eec\u8fd9\u91cc\u662f\u8ba9\u6211\u4eec\u7684\u5b50\u8fdb\u7a0b\u8fdb\u884c\u5199\u5165，\u8ba9\u6211\u4eec\u7684\u7236\u8fdb\u7a0b\u8fdb\u884c\u8bfb\u53d6\u3002<\/p>\n

\u6240\u4ee5\u6211\u4eec\u5b50\u8fdb\u7a0b\u8981\u8fdb\u884c\u5199\u5165，\u6240\u4ee5\u6211\u7684\u5b50\u8fdb\u7a0b\u8981\u5173\u95ed\u5bf9\u5e94\u7684\u8bfb\u7aef\u3002\u6211\u4eec\u5c06\u6211\u4eec\u5b50\u8fdb\u7a0b\u8981\u5e72\u7684\u6d3b\u8bbe\u7f6e\u4e3a\u5bf9\u5e94\u7684child\u51fd\u6570\u8fdb\u884c\u5c01\u88c5\u3002<\/p>\n

\u6211\u4eec\u7684\u7236\u8fdb\u7a0b\u8981\u8fdb\u884c\u5bf9\u5e94\u7684\u8bfb\u53d6，\u6211\u4eec\u7684\u7236\u8fdb\u7a0b\u5173\u95ed\u5bf9\u5e94\u7684\u5199\u7aef，\u6211\u4eec\u8ba9\u7236\u8fdb\u7a0b\u7684\u5de5\u4f5c\u7528\u51fd\u6570parent\u6765\u8fdb\u884c\u5c01\u88c5\u3002\u6240\u4ee5\u6211\u4eec\u5b50\u8fdb\u7a0b\u8981\u8fdb\u884c\u5bf9\u5e94\u7684\u5199\u5165，\u7236\u8fdb\u7a0b\u8981\u8fdb\u884c\u6211\u4eec\u5bf9\u5e94\u7684\u8bfb\u53d6\u8fd9\u4e0d\u5c31\u662f\u6211\u4eec\u7684\u6587\u4ef6\u64cd\u4f5c\u4e86\u5417\u3002<\/p>\n

int main() {
\n int status[2] = {0};
\n int ret_pipe = pipe(status);
\n if (ret_pipe < 0) {
\n perror("pipe false");
\n exit(1);
\n }
\n \/\/ std::cout<< status[0]<<":"<<status[1]<<std::endl;
\n \/\/ \u521b\u5efa\u5bf9\u5e94\u7684\u8fdb\u7a0b：
\n pid_t id = fork();
\n if (id == 0) {
\n close(status[0]);
\n child(status[1]);
\n close(status[1]);
\n }
\n close(status[1]);
\n parent(status[0]);
\n waitpid(id, 0, 0);
\n close(status[0]);<\/p>\n

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

\u4efb\u52a13：\u5bf9\u6587\u4ef6\u7684\u8bfb\u5199\u64cd\u4f5c\u3002<\/span><\/h4>\n

\u6211\u4eec\u5b50\u8fdb\u7a0b\u5411\u6587\u4ef6\u5199\u5c31\u884c\u4e86，\u6211\u4eec\u7684\u7236\u8fdb\u7a0b\u4e00\u76f4\u7684\u8bfb\u53d6\u5c31\u884c\u4e86\u3002<\/span><\/p>\n

\u6240\u4ee5\u73b0\u5728\u6211\u4eec\u5c31\u662f\u57fa\u4e8e\u6587\u4ef6\u8fdb\u884c\u64cd\u4f5c：<\/p>\n

void child(int wfd) {
\n char buffer[1024];
\n int cnt = 0;
\n while (1) {
\n snprintf(buffer, sizeof(buffer), "I am child pid:%d,cnt: %d", getpid(), cnt++);
\n write(wfd, buffer, strlen(buffer));
\n sleep(1);
\n }
\n}<\/p>\n

void parent(int wfd)
\n{
\n char buffer[1024];
\n while(1)
\n {
\n buffer[0]=0;
\n ssize_t n=read(wfd, buffer,sizeof(buffer)-1);
\n if(n>0)
\n {
\n buffer[n]=0;
\n std::cout<<"child say:"<< buffer<<std::endl;
\n }
\n sleep(1);
\n }
\n} <\/p>\n

ok\u6211\u4eec\u7684\u4e00\u4e2a\u533f\u540d\u7ba1\u9053\u5c31\u505a\u597d\u4e86\u6211\u4eec\u8fdb\u884c\u8fd0\u884c\u4e00\u4e0b，\u901a\u4fe1：<\/p>\n

\u6211\u4eec\u4e5f\u53d1\u73b0\u4ed6\u662f1s\u4e2d\u8fdb\u884c\u6253\u5370\u4e00\u6761\u6d88\u606f\u3002<\/p>\n

\"\"<\/p>\n

\u6e90\u7801：<\/span><\/h4>\n

#include <cstdio>
\n#include <cstring>
\n#include <iostream>
\n#include <sys\/types.h>
\n#include <sys\/wait.h>
\n#include <unistd.h>
\nvoid child(int wfd) {
\n char buffer[1024];
\n int cnt = 0;
\n while (1) {
\n snprintf(buffer, sizeof(buffer), "I am child pid:%d,cnt: %d", getpid(), cnt++);
\n write(wfd, buffer, strlen(buffer));
\n sleep(1);
\n }
\n}<\/p>\n

void parent(int wfd)
\n{
\n char buffer[1024];
\n while(1)
\n {
\n buffer[0]=0;
\n ssize_t n=read(wfd, buffer,sizeof(buffer)-1);
\n if(n>0)
\n {
\n buffer[n]=0;
\n std::cout<<"child say:"<< buffer<<std::endl;
\n }
\n sleep(1);
\n }
\n}
\nint main() {
\n int status[2] = {0};
\n int ret_pipe = pipe(status);
\n if (ret_pipe < 0) {
\n perror("pipe false");
\n exit(1);
\n }
\n \/\/ std::cout<< status[0]<<":"<<status[1]<<std::endl;
\n \/\/ \u521b\u5efa\u5bf9\u5e94\u7684\u8fdb\u7a0b：
\n pid_t id = fork();
\n if (id == 0) {
\n close(status[0]);
\n child(status[1]);
\n close(status[1]);
\n exit(0);
\n }
\n close(status[1]);
\n parent(status[0]);
\n waitpid(id, 0, 0);
\n close(status[0]);<\/p>\n

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

\n

\u516b\u3001\u533f\u540d\u7ba1\u9053\u76845\u4e2d\u7279\u6027<\/span><\/h2>\n

\u6211\u4eec\u901a\u8fc7\u4e0a\u9762\u7684\u8bd5\u9a8c\u4e5f\u80fd\u770b\u51fa\u6765\u7ba1\u9053\u7684\u8fd95\u4e2d\u7279\u6027\u3002<\/p>\n

1.\u533f\u540d\u7ba1\u9053\u53ea\u80fd\u8fdb\u884c\u6709\u8840\u7f18\u5173\u7cfb\u7684\u8fdb\u7a0b\u624d\u80fd\u901a\u4fe1\u3002（\u5144\u5f1f\u4e4b\u95f4\u4e5f\u662f\u53ef\u4ee5\u7684）<\/p>\n

2.\u7ba1\u9053\u6587\u4ef6\u5e26\u6709\u540c\u6b65\u673a\u5236\u3002（\u4f60\u5199\u4e00\u6761\u6211\u8bfb\u4e00\u6761）<\/p>\n

3.\u7ba1\u9053\u662f\u9762\u5411\u5b57\u8282\u6d41\u7684\u3002<\/p>\n

4.\u533f\u540d\u7ba1\u9053\u662f\u5355\u9879\u901a\u4fe1\u7684\u3002（\u4e00\u7aef\u5199\u4e00\u7aef\u8bfb）<\/p>\n

-\u4e00\u4e2a\u5199\u4e00\u4e2a\u8bfb\u00a0 \u2014\u2014\u534a\u53cc\u5de5<\/p>\n

-\u4e24\u4e2a\u90fd\u80fd\u5199\u90fd\u80fd\u8bfb \u2014\u2014 \u5168\u53cc\u5de5<\/p>\n

5.\u7ba1\u9053\u7684\u751f\u547d\u5468\u671f\u662f\u968f\u8fdb\u7a0b\u7684\u3002（\u5e95\u5c42\u6709\u5bf9\u5e94\u7684\u5f15\u7528\u8ba1\u6570）<\/p>\n

\n

\u4e5d\u3001\u7ba1\u9053\u7684\u56db\u79cd\u901a\u4fe1\u60c5\u51b5<\/span><\/h2>\n

1.\u5199\u6162，\u8bfb\u5feb \u2014\u2014 \u8bfb\u7aef\u963b\u585e，\u7b49\u5199\u7aef\u5199，\u5199\u4e00\u6761\u8bfb\u4e00\u6761\u3002<\/p>\n

\u6211\u4eec\u53ea\u8981\u628a\u5bf9\u5e94\u7684\u5199\u6bb5sleep\u4e0a\u51e0\u79d2\u5c31\u53ef\u4ee5\u3002\u5176\u4f59\u4ee3\u7801\u4fdd\u6301\u4e0d\u53d8\u3002（\u57fa\u4e8e\u4e0a\u9762\u7684\u6e90\u7801）<\/p>\n

void child(int wfd) {
\n char buffer[1024];
\n int cnt = 0;
\n while (1) {
\n snprintf(buffer, sizeof(buffer), "I am child pid:%d,cnt: %d", getpid(), cnt++);
\n write(wfd, buffer, strlen(buffer));
\n sleep(3);
\n }
\n} <\/p>\n

\n

2.\u5199\u5feb，\u8bfb\u6162 \u2014\u2014\u00a0 \u5199\u7aef\u4e00\u76f4\u5199，\u8bfb\u7aef\u4e00\u8bfb\u8bfb\u51fa\u4e00\u5927\u4e32\u7684\u5185\u5bb9\u3002\u5199\u5b8c\u4e86，\u5199\u7aef\u963b\u585e，\u7b49\u8bfb\u3002<\/p>\n

\u6211\u4eec\u53ea\u8981\u628a\u5bf9\u5e94\u7684\u8bfb\u7aefsleep\u4e0a\u51e0\u79d2\u5c31\u53ef\u4ee5\u3002\u5176\u4f59\u4ee3\u7801\u4fdd\u6301\u4e0d\u53d8\u3002（\u57fa\u4e8e\u4e0a\u9762\u7684\u6e90\u7801）<\/p>\n

void parent(int wfd)
\n{
\n char buffer[1024];
\n while(1)
\n {
\n buffer[0]=0;
\n ssize_t n=read(wfd, buffer,sizeof(buffer)-1);
\n if(n>0)
\n {
\n buffer[n]=0;
\n std::cout<<"child say:"<< buffer<<std::endl;
\n sleep(2);
\n }
\n sleep(1);
\n }
\n} <\/p>\n

\"\"<\/p>\n

\n

3.\u5199\u5173，\u8bfb\u4e0d\u5173 \u2014\u2014 \u5199\u7aef\u4f1a\u9ed8\u8ba4\u8bfb\u5230\u6700\u540e\u4e00\u4e2a\u5b57\u7b26\u8fd4\u56de0，\u8bfb\u7aef\u4e5f\u8981\u8fdb\u884c\u5173\u95ed\u3002<\/p>\n

\u6211\u4eec\u8ba9\u7a0b\u5e8f\u5199\u4e00\u6b21\u5c31\u8fdb\u884c\u5173\u95ed（break，\u5916\u9762\u4f1a\u8c03\u7528close\u8fdb\u884c\u5173\u95ed），\u6211\u4eec\u7684\u5199\u7aef\u5173\u95ed\u6211\u4eec\u7684\u8bfb\u7aef\u9ed8\u8ba4\u5c31\u662f\u8bfb\u5230\u4e86\u6587\u4ef6\u7684\u7ed3\u5c3e，read\u8fd4\u56de\u503c\u4e3a0，\u5176\u4f59\u4ee3\u7801\u4fdd\u6301\u4e0d\u53d8\u3002（\u57fa\u4e8e\u4e0a\u9762\u7684\u6e90\u7801）<\/p>\n

void child(int wfd) {
\n char buffer[1024];
\n int cnt = 0;
\n while (1) {
\n snprintf(buffer, sizeof(buffer), "I am child pid:%d,cnt: %d", getpid(), cnt++);
\n write(wfd, buffer, strlen(buffer));
\n break;
\n }
\n}<\/p>\n

void parent(int wfd)
\n{
\n char buffer[1024];
\n while(1)
\n {
\n buffer[0]=0;
\n ssize_t n=read(wfd, buffer,sizeof(buffer)-1);
\n if(n>0)
\n {
\n buffer[n]=0;
\n std::cout<<"child say:"<< buffer<<std::endl;
\n }
\n else if(n ==0)
\n {
\n std::cout<<"w\u9000\u51fa\u4e86，\u6211\u4e5f\u9000\u51fa"<<std::endl;
\n break;
\n }
\n }
\n} <\/p>\n

\n

4.\u5199\u4e0d\u5173，\u8bfb\u5173 \u2014\u2014 \u7a0b\u5e8f\u5f02\u5e38， \u7236\u8fdb\u7a0b\u4e00\u76f4\u7b49\u5f85\u56de\u6536\u5b50\u8fdb\u7a0b，\u5b50\u8fdb\u7a0b\u4e00\u76f4\u5728\u54ea\u91cc\u5199，\u5199\u6ee1\u7b49\u8bfb\u3002<\/p>\n

\u8bfb\u4e00\u6b21\u6211\u4eec\u5c31\u5173\u95ed，\u6211\u4eec\u770b\u5230\u6211\u4eec\u8bfb\u4e86\u4e00\u6b21\u6211\u4eec\u7684\u7a0b\u5e8f\u5c31\u4f1a\u963b\u585e\u5728\u54ea\u91cc， \u6211\u4eec\u7684\u5b50\u8fdb\u7a0b\u6ca1\u6709\u9000\u51fa\u7236\u8fdb\u7a0b\u5c31\u4f1a\u963b\u585e\u5728\u54ea\u91cc\u60f3\u8981\u56de\u6536\u5b50\u8fdb\u7a0b\u3002\u5176\u4f59\u4ee3\u7801\u4fdd\u6301\u4e0d\u53d8\u3002（\u57fa\u4e8e\u4e0a\u9762\u7684\u6e90\u7801）<\/p>\n

\"\"<\/p>\n

\u5341\u3001\u8fdb\u7a0b\u6c60\u7684\u7f16\u5199<\/span><\/h2>\n

\u6211\u4eec\u73b0\u5728\u7f16\u5199\u7684\u8fdb\u7a0b\u6c60\u662f\u57fa\u4e8e\u6211\u4eec\u7684\u533f\u540d\u7ba1\u9053\u6765\u5b9e\u73b0\u6211\u4eec\u5bf9\u5e94\u7684\u591a\u8fdb\u7a0b\u4e4b\u95f4\u7684\u64cd\u4f5c\u7684\u3002<\/p>\n

\u9a8c\u8bc1\u6211\u4eec\u7ba1\u9053\u7684\u5bb9\u91cf：<\/span><\/h3>\n

\u6211\u4eec\u5c06\u8bfb\u7aef\u8fdb\u884c\u5173\u95ed\u8fd0\u884c\u4e0b\u9762\u7684\u4e00\u4e2a\u7a0b\u5e8f：<\/p>\n

\u6211\u4eec\u6bcf\u4e00\u6b21\u51994\u4e2a\u5b57\u8282，\u770b\u770b\u4e00\u5171\u80fd\u5199\u591a\u5c11\u3002<\/p>\n

void child(int wfd) {
\n char buffer[1024];
\n int cnt = 0;
\n while (1) {
\n write(wfd, &cnt, 4);
\n cnt++;
\n std::cout<<cnt<<std::endl;
\n }
\n} <\/p>\n

\u6211\u4eec\u770b\u5230\u4e86\u4e00\u517116385\u6b21\u90a3\u6211\u4eec\u8ba1\u7b97\u4e00\u4e0b16384 x 4 = 65540 Byte，\u00a065540 \/ 1024 \u7ea6\u7b49\u4e8e64\u4e2a\u5b57\u8282\u3002\u6240\u4ee5\u6211\u4eec\u80fd\u8fdb\u884c\u4f7f\u7528\u7684\u662f64\u4e2a\u5b57\u8282\u5de6\u53f3\u3002<\/p>\n

\"\"<\/p>\n

\n

\u6587\u4ef6\u7c7b\u578b：<\/span><\/h3>\n

\u6211\u4eec\u5148\u8ba4\u8bc6\u6211\u4eec\u5bf9\u5e94\u7684\u6587\u4ef6\u7c7b\u578b<\/p>\n

\u6211\u4eec\u4f1a\u7528\u5230\u5bf9\u5e94\u7684hpp\u6587\u4ef6， \u4ed6\u662f\u6211\u4eec.h\u6587\u4ef6\u548c.cpp\u6587\u4ef6\u7684\u5408\u5e76\u5f62\u5f0f\u3002<\/p>\n

\u6211\u4eec\u4e4b\u524d\u5b9a\u4e49.h\u6587\u4ef6\u4f1a\u8fdb\u884c\u5206\u6587\u4ef6\u53bb\u5b9e\u73b0\u5bf9\u5e94\u7684.cpp\u6587\u4ef6， \u800c\u6211\u4eec.hpp\u6587\u4ef6\u5b9a\u4e49\u5b8c\u53ef\u4ee5\u76f4\u63a5\u7684\u8fdb\u884c\u4f7f\u7528\u3002<\/p>\n

\u6211\u4eec\u7684\u6e90\u6587\u4ef6.cc .cpp .cxx\u90fd\u662f\u6211\u4eec\u5bf9\u5e94\u7684c++\u6587\u4ef6\u7684\u540e\u7f00， \u6211\u4eec\u54ea\u4e2a\u6587\u4ef6\u90fd\u53ef\u4ee5\u8fdb\u884c\u4f7f\u7528\u3002<\/p>\n

\n

\u8fdb\u7a0b\u6c60\u7684\u7ed3\u6784<\/span><\/h3>\n

\u6211\u4eec\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u7236\u8fdb\u7a0b，\u6765\u8fdb\u884c\u5199， \u7136\u540epipe\u521b\u5efa\u5f88\u591a\u4e2a\u7ba1\u9053\u6765\u8fdb\u884c\u5bf9\u5e94\u7684\u901a\u4fe1\u8fd9\u91cc\u8bbe\u7f6e\u4e3a5\u4e2a\u7136\u540e\u521b\u5efa5\u4e2a\u5b50\u8fdb\u7a0b（fork）\u6765\u8fdb\u884c\u8bfb\u53d6， \u6bcf\u5f53\u6211\u7236\u8fdb\u7a0b\u5199\u5165\u7684\u65f6\u5019\u6211\u4eec\u5bf9\u5e94\u7684\u8fd95\u4e2a\u5b50\u8fdb\u7a0b\u6765\u8fdb\u884c\u5bf9\u5e94\u7684\u8bfb\u53d6， \u6211\u4eec\u80fd\u8bbe\u7f6e\u5bf9\u5e94\u7684\u8bfb\u5199\u89c4\u5219\u3002\u7236\u8fdb\u7a0b\u5199\u5165\u901a\u8fc7\u7ba1\u9053\u5199\u5165\u5230\u4e0d\u540c\u7684\u5b50\u8fdb\u7a0b\u4e2d\u3002<\/span><\/p>\n

\"\"<\/p>\n

\u8fdb\u7a0b\u6c60\u4ee3\u7801\u5256\u6790：<\/span><\/h3>\n

1.\u6211\u4eec\u8981\u6709\u7684\u7ed3\u6784（\u7c7b）<\/p>\n

\u9996\u5148\u6211\u4eec\u6bcf\u4e00\u4e2a\u4fe1\u9053\u8981\u8fdb\u884c\u521b\u5efaChannel \u5c31\u4ee3\u8868\u4e00\u4e2a\u4fe1\u9053\u3002<\/p>\n

\u5176\u6b21\u6211\u4eec\u7684\u4fe1\u9053\u8981\u8fdb\u884c\u5bf9\u5e94\u7684\u7ec4\u7ec7\u8d77\u6765\u3002\u65b9\u4fbf\u6211\u4eec\u540e\u7eed\u7684\u7ba1\u7406\u3002（Grp_Channel\u00a0）<\/p>\n

\u7136\u540e\u5c31\u662f\u7f16\u5199\u6211\u4eec\u7684\u8fdb\u7a0b\u6c60\u7684\u4e00\u4e2a\u4e13\u5c5e\u7684\u7c7b\u8d1f\u8d23\u63d0\u4f9b\u5bf9\u5e94\u7684\u63a5\u53e3\u3002（Propool\u00a0）<\/p>\n

\u7ed3\u6784\u6846\u67b6<\/span><\/h4>\n

\u6211\u4eec\u7684\u7ed3\u6784\u5982\u4e0b：<\/p>\n

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

class Channel {
\n Channel() {
\n }<\/p>\n

~Channel() {
\n }
\n};<\/p>\n

class Grp_Channel {
\n Grp_Channel() {
\n }<\/p>\n

~Grp_Channel() {
\n }
\n};<\/p>\n

class Propool {
\n Propool() {
\n }<\/p>\n

~Propool() {
\n }
\n}; <\/p>\n

\u6210\u5458\u53d8\u91cf：<\/span><\/h4>\n

\u90a3\u6211\u4eec\u5bf9\u5e94\u7684\u6210\u5458\u90fd\u6709\u5565\u5462？<\/p>\n

\u4e00\u5b9a\u6709\u6211\u4eec\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26fd，\u6211\u4eec\u521b\u5efa\u7ba1\u9053\u4e00\u5b9a\u9700\u8981\u8bfb\u5199\u6240\u4ee5\u4e00\u5b9a\u8981\u6dfb\u52a0fd\u3002<\/p>\n

\u6211\u4eec\u7684Grp_Channel\u5c31\u662f\u5c06\u6211\u4eec\u7684Channel\u8fdb\u884c\u7ec4\u7ec7\u8d77\u6765\u3002<\/p>\n

\u6240\u4ee5\u6211\u4eec\u53ef\u4ee5\u9009\u62e9\u4e00\u4e2a\u6570\u636e\u7ed3\u6784\u8fd9\u91cc\u9009\u62e9vector（list， map）\u90fd\u53ef\u4ee5\u3002<\/p>\n

\u6211\u4eec\u7684\u8fdb\u6210\u6c60\u4e00\u5b9a\u8981\u6709\u4e00\u4e2aGrp_Channel\u7c7b\u578b\u7684\u53d8\u91cf\u3002<\/p>\n

\u5f53\u7136\u8fd8\u6709\u5bf9\u5e94\u7684\u6210\u5458\u6211\u4eec\u540e\u9762\u8fdb\u884c\u52a0\u5165\u3002<\/p>\n

\u6240\u4ee5：<\/p>\n

class Channel {
\npublic:
\n Channel() {
\n }<\/p>\n

~Channel() {
\n }<\/p>\n

private:
\n int fd;
\n int id;
\n std::string name;
\n};<\/p>\n

class Grp_Channel {
\npublic:
\n Grp_Channel() {
\n }<\/p>\n

~Grp_Channel() {
\n }<\/p>\n

private:
\n std::vector<Channel> _cn;
\n};<\/p>\n

class Propool {
\npublic:
\n Propool() {
\n }<\/p>\n

~Propool() {
\n }<\/p>\n

private:
\n Grp_Channel _cm;
\n}; <\/p>\n

\u8fdb\u7a0b\u6c60\u7684\u6570\u91cf<\/span><\/h4>\n

\u6211\u4eec\u8fd9\u91cc\u8981\u8bbe\u7f6e\u7ba1\u9053\u7684\u6570\u91cf\u3002\u6211\u4eec\u9ed8\u8ba4\u662f5\u3002\u4e5f\u5c31\u4ee3\u8868\u4e86\u6211\u4eec\u5b50\u8fdb\u7a0b\u7684\u6570\u91cf\u3002<\/span><\/p>\n

#define PROC_MAX 5 <\/p>\n

\u521b\u5efa\u8fdb\u7a0b\u6c60：<\/h4>\n

\u5728\u4f7f\u7528\u8fdb\u7a0b\u6c60\u901a\u4fe1\u4e4b\u524d\u6211\u4eec\u8981\u5148\u521b\u5efa\u5bf9\u5e94\u7684\u8fdb\u7a0b\u6c60\u3002<\/p>\n

\u6211\u4eec\u7684\u5b50\u8fdb\u7a0b\u8981\u6267\u884c\u8bfb\u7684\u5de5\u4f5c\u6240\u4ee5\u6211\u4eec\u7684Work，\u6240\u4ee5\u6211\u4eec\u4e13\u4eec\u5199\u4e00\u4e2a\u51fd\u6570\u6765\u8fdb\u884c\u6267\u884c\u3002<\/p>\n

\u6211\u4eec\u7684\u7236\u8fdb\u7a0b\u8981\u505a\u7684\u5de5\u4f5c\u5c31\u662f\u628a\u6211\u4eec\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u7ed9\u4fdd\u5b58\u8d77\u6765，\u6709\u52a9\u4e8e\u6211\u4eec\u8fdb\u884c\u7ba1\u7406\u3002<\/p>\n

bool Create() {
\n for (int i = 0; i < _num; i++) {
\n int pipefd[2] = {0};
\n int ret_pipe = pipe(pipefd);
\n if (ret_pipe < 0) {
\n perror("pipe fail");
\n return false;
\n }
\n pid_t id = fork();
\n if (id == 0) {
\n close(pipefd[1]);
\n Work(pipefd[0]);
\n close(pipefd[1]);
\n exit(0);
\n } else if (id > 0) {
\n close(pipefd[0]);
\n _cm.Push(id, pipefd[1]);<\/p>\n

} else {
\n perror("fork fail!");
\n return false;
\n }
\n }
\n return true;
\n }
\n void Push(int id, int fd) {
\n _vc.emplace_back(id, fd);
\n }
\n Channel(pid_t id, int fd) : _id(id), _fd(fd) {
\n name = "\u6211\u662f\u4e00\u4e2a\u5b50\u8fdb\u7a0b-" + std::to_string(fd) +'-'+std::to_string(id);
\n } <\/p>\n

\u5b50\u8fdb\u7a0b\u7684\u5de5\u4f5c<\/span><\/h4>\n

\u8fd9\u91cc\u6211\u4eec\u7684\u5b50\u8fdb\u7a0b\u8981\u5e72\u4ec0\u4e48\u5462？<\/span><\/p>\n

\u5f53\u7136\u662f\u8bfb\u53d6\u6211\u4eec\u5bf9\u5e94\u7684\u6570\u636e\u6570\u4e86\u3002\u8fd9\u91cc\u6211\u4eec\u8bbe\u7f6e\u4e00\u4e2a\u6574\u6570code，\u8868\u793a\u4e00\u4e2a\u4efb\u52a1\u7801，\u6211\u4eec\u4f1a\u53d1\u51fa\u5f88\u591a\u7684\u4efb\u52a1\u7801\u4fbf\u4e8e\u6211\u4eec\u6267\u884c\u4e0d\u540c\u7684\u4efb\u52a1\u3002\u6240\u4ee5\u6211\u4eec\u8bbe\u7f6e\u4e00\u4e2acode\u3002\u8fd9\u91cc\u6ce8\u610f\u5982\u679c\u6211\u4eec\u5199\u7aef\u4e0d\u5199\u4ed6\u5c31\u4f1a\u963b\u585e\u5728\u90a3\u91cc\u3002\u6240\u4ee5\u521a\u5f00\u59cb\u7684\u65f6\u5019\u5c31\u4f1a\u8fdb\u884c\u963b\u585e\u3002\u6211\u4eec\u7684\u7236\u8fdb\u7a0b\u8d1f\u8d23\u53d1\u5bf9\u5e94\u7684\u4efb\u52a1\u7801\u3002<\/span><\/p>\n

void Work(int fd) {
\n while (1) {
\n int code=0;
\n ssize_t ret_r = read(fd, &code, sizeof(code));
\n if (ret_r < 0) {
\n perror("read fail!");
\n } else if (ret_r == 0) {
\n std::cout << "w\u7aef\u9000\u51fa" << std::endl;
\n break;
\n }
\n else
\n {
\n if(ret_r==sizeof(code))
\n {
\n std::cout<<"\u5b50\u8fdb\u7a0b[" << getpid<<"]\u6536\u5230\u4e86\u4e00\u4e2a\u9000\u51fa\u7801"<<std::endl;<\/p>\n

}
\n else
\n continue;
\n }
\n }
\n } <\/p>\n

\u8fd0\u884c\u8fdb\u7a0b\u6c60：<\/h4>\n

\u8fd9\u91cc\u8981\u6ce8\u610f\u6211\u4eec\u53d1\u51fa\u4e86\u5bf9\u5e94\u7684\u4efb\u52a1\u7801，\u5fc5\u987b\u5148\u521b\u5efa\u5bf9\u5e94\u7684\u4efb\u52a1<\/p>\n

\u6240\u4ee5\u8fd9\u91cc\u6211\u4eec\u8981\u5148\u5199\u6211\u4eec\u6709\u4ec0\u4e48\u7684\u4efb\u52a1\u3002<\/p>\n

\u8fd9\u91cc\u968f\u4fbf\u7ed9\u51fa\u4e86\u4e09\u4e2a\u4efb\u52a1\u3002\u6211\u4eec\u7684Register\u662f\u6211\u4eec\u60f3\u8981\u5411\u6587\u4ef6\u4e2d\u6dfb\u52a0\u4ec0\u4e48\u4efb\u52a1\u3002<\/p>\n

Code\u662f\u6211\u4eec\u8fd4\u56de\u4e00\u4e2a\u968f\u673a\u4efb\u52a1\u8ba9\u6211\u4eec\u8fdb\u884c\u6267\u884c\u3002Execute\u8fd9\u4e2a\u4e3b\u8981\u662f\u7ed9\u6211\u4eec\u7684\u5b50\u8fdb\u7a0b\u8fdb\u884c\u8bbe\u7f6e\u7684\u8ba9\u6211\u4eec\u7684\u5b50\u8fdb\u7a0b\u7684\u5f97\u5230\u5bf9\u5e94\u7684\u4efb\u52a1\u7801\u7684\u65f6\u5019\u53bb\u6267\u884c\u5bf9\u5e94\u7684\u51fd\u6570\u3002<\/p>\n

#pragma once
\n#include <iostream>
\n#include <vector>
\n#include <ctime><\/p>\n

typedef void (*task_t)();<\/p>\n

\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/debug\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/
\nvoid PrintLog()
\n{
\n std::cout << "\u6211\u662f\u4e00\u4e2a\u6253\u5370\u65e5\u5fd7\u7684\u4efb\u52a1" << std::endl;
\n}<\/p>\n

void Download()
\n{
\n std::cout << "\u6211\u662f\u4e00\u4e2a\u4e0b\u8f7d\u7684\u4efb\u52a1" << std::endl;
\n}<\/p>\n

void Upload()
\n{
\n std::cout << "\u6211\u662f\u4e00\u4e2a\u4e0a\u4f20\u7684\u4efb\u52a1" << std::endl;
\n}
\n\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/<\/p>\n

class TaskManager
\n{
\npublic:
\n TaskManager()
\n {
\n srand(time(nullptr));
\n }
\n void Register(task_t t)
\n {
\n _tasks.push_back(t);
\n }
\n int Code()
\n {
\n return rand() % _tasks.size();
\n }
\n void Execute(int code)
\n {
\n if(code >= 0 && code < _tasks.size())
\n {
\n _tasks[code]();
\n }
\n }
\n ~TaskManager()
\n {}
\nprivate:
\n std::vector<task_t> _tasks;
\n}; <\/p>\n

\u6240\u4ee5\u6211\u4eec\u5728\u8fd0\u884c\u8fdb\u7a0b\u6c60\u7684\u65f6\u5019\u8981\u6ce8\u610f\u8fd9\u4e9b\u4efb\u52a1，\u6211\u4eec\u8981\u5148\u8fdb\u6027\u6ce8\u518c\u5bf9\u5e94\u4efb\u52a1\u3002<\/p>\n

ProcessPool(int num):_num(num)
\n {
\n _tb.Register(PrintLog);
\n _tb.Register(Download);
\n _tb.Register(Upload);
\n }<\/p>\n

TaskManager _tb; <\/p>\n

\u8fd9\u91cc\u6211\u4eec\u7684\u7236\u8fdb\u7a0b\u8981\u5148\u53bb\u9009\u62e9\u4e00\u4e2a\u4efb\u52a1\u8ba9\u6211\u4eec\u53bb\u6267\u884c\u3002<\/p>\n

\u7136\u540e\u9009\u62e9\u4e00\u4e2a\u4fe1\u9053\u8ba9\u6211\u4eec\u53bb\u6267\u884c\u3002<\/p>\n

\u6211\u4eec\u5411\u8fd9\u4e2a\u4fe1\u9053\u53bb\u53d1\u9001\u8fd9\u4e2a\u4efb\u52a1\u7801\u3002<\/p>\n

void Proc_Start()
\n {
\n \/\/\u9009\u62e9\u4e00\u4e2a\u4efb\u52a1
\n int taskcode = _tb.Code();
\n \/\/\u9009\u62e9\u4e00\u4e2a\u4fe1\u9053\u6765\u5b8c\u6210\u4efb\u52a1\u3002
\n auto&c=_cm.Select();
\n std::cout<<"\u9009\u62e9\u4e86\u4e00\u4e2a\u5b50\u8fdb\u7a0b"<<c.GetName()<<std::endl;
\n \/\/\u53d1\u9001\u5bf9\u5e94\u7684\u4efb\u52a1\u6765\u5b8c\u6210
\n c.Send(taskcode);
\n std::cout<<"\u53d1\u9001\u4e86\u4e00\u4e2a\u5bf9\u5e94\u7684\u4efb\u52a1\u7801："<<taskcode<<std::endl;
\n } <\/p>\n

\u4fe1\u9053\u7684\u9009\u62e9：<\/h4>\n

\u6211\u4eec\u91c7\u7528\u4ec0\u4e48\u65b9\u5f0f\u8fdb\u884c\u9009\u62e9，\u6211\u4eec\u7684\u9009\u5219\u662f\u907f\u514d\u5fd9\u7684\u5fd9\u6b7b，\u95f2\u7684\u95f2\u6b7b\u3002<\/p>\n

1.\u8f6e\u8be2\u7684\u65b9\u5f0f\u8fdb\u884c<\/p>\n

2.\u968f\u673a\u9009\u62e9<\/p>\n

3.\u6dfb\u52a0\u8d1f\u8f7d\u6307\u6807<\/p>\n

\u6240\u4ee5\u8fd9\u91cc\u6211\u4eec\u539f\u5219\u8f6e\u8be2\u7684\u65b9\u5f0f<\/p>\n

Channel& Select()\/\/\u8f6e\u8be2\u7684\u65b9\u5f0f\u8fdb\u884c\u67e5\u627e
\n {
\n Channel& ret = _vc[_next];
\n _next++;
\n _next %= _vc.size();
\n return ret;
\n } <\/p>\n

\u6211\u4eec\u8981\u52a0\u5165\u4e00\u4e2a_next\u7684\u6210\u5458\u53d8\u91cf\u8ba9\u6211\u4eec\u627e\u4e0b\u4e00\u4e2a\u8fdb\u884c\u5de5\u4f5c\u7684\u4fe1\u9053\u3002<\/p>\n

\u00a0 \u00a0 \u00a0_next %= _vc.size();\u4e3a\u4e86\u907f\u514d\u6211\u4eec\u8fdb\u884c\u8d8a\u754c\u3002<\/p>\n

\u6211\u4eec\u8fd9\u91cc\u5728\u63d0\u4f9b\u4e00\u79cd\u968f\u673a：<\/p>\n

srand(0);
\n int a = rand() % _vc.size();
\n return _vc[a]; <\/p>\n

\u6211\u4eec\u9009\u62e9\u4e86\u8fd9\u4e2a\u4fe1\u9053\u8ba9\u8fd9\u4e2a\u4fe1\u9053\u53bbwrite\u5230\u7ba1\u9053\u4e2d，\u8ba9\u5bf9\u5e94\u7684\u8fdb\u7a0b\u6765\u8bfb\u53d6\u5bf9\u5e94\u7684\u4efb\u52a1\u7801\u6765\u8fdb\u884c\u53bb\u89e3\u51b3\u5bf9\u5e94\u7684\u4efb\u52a1\u3002<\/p>\n

void Send(int code)
\n {
\n ssize_t n = write(_fd, &code, sizeof(code));
\n (void)n;
\n } <\/p>\n

\u7136\u540e\u6211\u4eec\u57fa\u4e8e\u73b0\u5728\u7684\u5b50\u8fdb\u7a0b\u8fd8\u8981\u518d\u52a0\u5165\u5bf9\u5e94\u7684\u6267\u884c\u51fd\u6570，\u8ba9\u6211\u4eec\u6267\u884c\u5bf9\u5e94\u4efb\u52a1\u7801\u5bf9\u5e94\u7684\u4efb\u52a1\u3002<\/p>\n

void Work(int fd) {
\n while (1) {
\n int code=0;
\n ssize_t ret_r = read(fd, &code, sizeof(code));
\n if (ret_r < 0) {
\n perror("read fail!");
\n } else if (ret_r == 0) {
\n std::cout << "w\u7aef\u9000\u51fa" << std::endl;
\n break;
\n }
\n else
\n {
\n if(ret_r==sizeof(code))
\n {
\n std::cout<<"\u5b50\u8fdb\u7a0b[" << getpid<<"]\u6536\u5230\u4e86\u4e00\u4e2a\u9000\u51fa\u7801"<<std::endl;
\n \/\/\u6267\u884c\u5bf9\u5e94\u7684\u8fd9\u4e2a\u4efb\u52a1
\n _tb.Execute(code);
\n }
\n else
\n continue;
\n }
\n }
\n } <\/p>\n

\u4e0a\u9762\u6211\u5df2\u7ecf\u5199\u597d\u4e86\u4e00\u4e2a\u5bf9\u5e94\u7684\u4fe1\u9053\u7684\u8fd0\u884c\u548c\u521b\u5efa<\/p>\n

\u8fdb\u7a0b\u6c60\u7684\u9500\u6bc1：<\/h4>\n

\u6211\u4eec\u7684\u8fdb\u7a0b\u6c60\u7684\u9500\u6bc1\u4e3b\u8981\u662f\u75312\u7684\u4e1c\u897f，1.\u6211\u4eec\u7684\u7236\u8fdb\u7a0b\u56de\u6536\u6240\u6709\u7684\u5b50\u8fdb\u7a0b， 2.\u6211\u4eec\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u8981\u8fdb\u884c\u5173\u95ed\u3002<\/p>\n

\u8fd9\u91cc\u6211\u4eec\u7684\u7ba1\u9053\u8981\u4e0d\u8981\u8fdb\u884c\u9500\u6bc1\u5462？<\/p>\n

\u7b54\u6848\u4e0d\u8981，\u56e0\u4e3a\u6211\u4eec\u5bf9\u5e94\u7684\u7ba1\u9053\u662f\u5bf9\u5e94\u7684\u5f15\u7528\u8ba1\u6570，\u5f53\u6211\u4eec\u7684\u5f15\u7528\u6280\u672f\u4e3a0\u7684\u65f6\u5019\u6211\u4eec\u7684OS\u56de\u81ea\u884c\u8fdb\u884c\u56de\u6536\u3002<\/p>\n

\u6211\u4eec\u7684\u8fdb\u7a0b\u6c60\u53ea\u9700\u8981\u8c03\u7528\u4e00\u6b21：<\/p>\n

void StoProcPool()\/\/\u7ec8\u6b62\u8fdb\u7a0b\u6c60
\n {
\n _cm.delete_Stop();
\n } <\/p>\n

Grp_Channel\u00a0<\/p>\n

void start_close()
\n {
\n for(auto& vc : _vc)
\n {
\n vc.Close();
\n }
\n }<\/p>\n

void start_wait()
\n {
\n for(auto& vc: _vc)
\n {
\n vc.Wait();
\n }
\n } <\/p>\n

Channel：<\/p>\n

\u6211\u4eec\u7684id\u548cfd\u5728\u6211\u4eec\u7684\u4e00\u4e2a\u4e2a\u4fe1\u9053\u4e2d\u5c31\u6709\u4e86\u3002\u6240\u4ee5\u6211\u4eec\u5faa\u73af\u8fdb\u884c\u8c03\u7528\u5c31\u53ef\u4ee5\u4e86\u3002<\/p>\n

void Close()
\n {
\n close(_fd);
\n }
\n void Wait()
\n {
\n pid_t wi = waitpid(_id,nullptr,0);
\n (void) wi;
\n } <\/p>\n

Bug？<\/span><\/h4>\n

\u5f53\u7136\u8fd9\u4e2a\u4ee3\u7801\u6709\u4e00\u4e2a\u5f88\u6df1\u7684BUG？\u6211\u4eec\u53ef\u4ee5\u77e5\u9053\u5f53\u6211\u4eec\u521b\u5efa\u4e00\u4e2a\u5b50\u8fdb\u7a0b\u7684\u65f6\u5019\u6211\u4eec\u56de\u62f7\u8d1d\u4ed6\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u8868\u6240\u4ee5\u6211\u4eec\u4e0b\u4e00\u4e2a\u521b\u5efa\u7684\u5b50\u8fdb\u7a0b\u6587\u4ef6\u63cf\u8ff0\u7b26\u8868\u4e2d\u4f1a\u6709\u6307\u5411\u6211\u4eec\u4e0a\u4e00\u4e2a\u521b\u5efa\u7ba1\u9053\u3002\u4ee5\u6b64\u7c7b\u63a8\u6211\u4eec\u7684\u4e0b\u4e0b\u4e00\u4e2a\u4f1a\u6307\u5411\u6211\u4eec\u7684\u524d\u4e24\u4e2a\u7684\u7ba1\u9053\u3002<\/p>\n

\"\"<\/p>\n

\u6211\u4eec\u53ef\u4ee5\u4ece\u4e0b\u5f00\u59cb\u8fdb\u884c\u5bf9\u5e94\u7684\u91ca\u653e\u6211\u4eec\u5bf9\u5e94\u7684\u8868：<\/p>\n

\/\/\u89e3\u51b3\u65b9\u68481：\u4ece\u4e0b\u5411\u4e0a\u8fdb\u884c\u56de\u6536
\n \/\/ std::vector<Channel>::reverse_iterator it = _vc.rbegin();
\n \/\/ while(it != _vc.rend())
\n \/\/ {
\n \/\/ it->Close();
\n \/\/ std::cout<<"\u5173\u95ed"<<it->GetName()<<std::endl;
\n \/\/ it->Wait();
\n \/\/ std::cout<<"\u56de\u6536"<<it->GetName()<<std::endl;<\/p>\n

\/\/ ++it;
\n \/\/ }<\/p>\n

\u65b9\u6848\u4e8c：<\/p>\n

\u63d0\u524d\u8fdb\u884c\u4e00\u6b21\u5c06\u6587\u4ef6\u63cf\u8ff0\u7b26\u6211\u4eec\u5bf9\u5e94\u4e0d\u9700\u8981\u7684\u8fdb\u884c\u5173\u95ed\u3002\u5728\u521b\u5efa\u7684\u65f6\u5019\u6211\u4eec\u5c31\u628a\u4e0d\u8981\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u8fdb\u884c\u5173\u95ed\u5c31\u53ef\u4e86，\u6211\u4eec\u5bf9\u5e94\u7684\u901a\u9053\u5c31\u4e00\u5b9a\u53ea\u6709\u6211\u4eec\u76842\u4e2a\u8fdb\u7a0b\u8fdb\u884c\u6307\u5411\u4e86\u3002<\/p>\n

_cm.start_close();\/\/\u8fdb\u7a0b\u662f\u72ec\u7acb\u7684\u6211\u4eec\u5728\u7236\u8fdb\u7a0b\u83b7\u53d6\u7684\u4e00\u4e9b\u5143\u7d20\u6587\u4ef6\u63cf\u8ff0\u7b26\u6211\u4eec\u8fdb\u884c\u5173\u95ed<\/p>\n

\u00a0\/\/\u6211\u4eec\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u4f1a\u4e0d\u4f1a\u5173\u95ed\u5462？\u7b54\u6848\u662f\u4e0d\u4f1a\u7684，\u56e0\u4e3a\u5c31\u7b97\u6211\u4eec\u7684\u7236\u8fdb\u7a0b\u5148\u53d1\u751fpush\u4e5f\u4f1a\u53d1\u751f\u5199\u5b9e\u8003\u5457\u3002<\/p>\n

for(auto& vc : _vc)
\n {
\n vc.Close();
\n std::cout<<"\u5173\u95ed"<<vc.GetName()<<std::endl;
\n vc.Wait();
\n std::cout<<"\u56de\u6536"<<vc.GetName()<<std::endl;
\n }<\/p>\n

\u8fdb\u7a0b\u6c60\u7684\u6e90\u7801：<\/h3>\n

ProccessPool.hpp<\/h4>\n

#pragma once
\n#include <cstring>
\n#include <iostream>
\n#include <sys\/types.h>
\n#include <unistd.h>
\n#include <vector>
\n#include <sys\/wait.h>
\n#include "tasktable.hpp"<\/p>\n

#define CHANNEL_NUM 5
\n#define READ_MAX 1024
\n\/\/ \u5148\u63cf\u8ff0
\nclass Channel {
\npublic:
\n Channel(pid_t id, int fd) : _id(id), _fd(fd) {
\n name = "\u6211\u662f\u4e00\u4e2a\u5b50\u8fdb\u7a0b-" + std::to_string(fd) +'-'+std::to_string(id);
\n }<\/p>\n

~Channel() {
\n }<\/p>\n

std::string& GetName()
\n {
\n return name;
\n }
\n pid_t Getpid()
\n {
\n return _id;
\n }
\n int Getfd()
\n {
\n return _fd;
\n }
\n void Send(int code)
\n {
\n ssize_t n = write(_fd, &code, sizeof(code));
\n (void)n;
\n }
\n void Close()
\n {
\n close(_fd);
\n }
\n void Wait()
\n {
\n pid_t wi = waitpid(_id,nullptr,0);
\n (void) wi;
\n }<\/p>\n

private:
\n pid_t _id;
\n int _fd;
\n std::string name;
\n};<\/p>\n

\/\/ \u5728\u7ec4\u7ec7
\nclass AdmChannel {
\npublic:
\n AdmChannel() :_next(0){
\n }<\/p>\n

void Push(int id, int fd) {
\n _vc.emplace_back(id, fd);
\n }<\/p>\n

Channel& Select()\/\/\u8f6e\u8be2\u7684\u65b9\u5f0f\u8fdb\u884c\u67e5\u627e
\n {
\n Channel& ret = _vc[_next];
\n _next++;
\n _next %= _vc.size();
\n return ret;
\n \/\/ srand(0);
\n \/\/ int a = rand() % _vc.size();
\n \/\/ return _vc[a];
\n }<\/p>\n

void PrintCe()\/\/\u6d4b\u8bd5
\n {
\n for(auto& vc:_vc)
\n {
\n std::cout<<vc.GetName()<<std::endl;
\n }
\n }<\/p>\n

void delete_Stop()
\n {
\n \/\/\u89e3\u51b3\u65b9\u6848\u4e8c： \u4ece\u6e90\u5934\u4e0a\u89e3\u51b3，\u6211\u4eec\u7684\u539f\u56e0\u662f\u4e0d\u540c\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u6307\u5411\u4e86\u540c\u4e00\u5757\u533a\u57df\u3002\u6211\u4eec\u63d0\u4f9b\u4e00\u4e2aclose\u63d0\u524d\u8fdb\u884c\u5173\u95ed\u3002
\n for(auto& vc : _vc)
\n {
\n vc.Close();
\n std::cout<<"\u5173\u95ed"<<vc.GetName()<<std::endl;
\n vc.Wait();
\n std::cout<<"\u56de\u6536"<<vc.GetName()<<std::endl;
\n }<\/p>\n

\/\/\u89e3\u51b3\u65b9\u68481：\u4ece\u4e0b\u5411\u4e0a\u8fdb\u884c\u56de\u6536
\n \/\/ std::vector<Channel>::reverse_iterator it = _vc.rbegin();
\n \/\/ while(it != _vc.rend())
\n \/\/ {
\n \/\/ it->Close();
\n \/\/ std::cout<<"\u5173\u95ed"<<it->GetName()<<std::endl;
\n \/\/ it->Wait();
\n \/\/ std::cout<<"\u56de\u6536"<<it->GetName()<<std::endl;<\/p>\n

\/\/ ++it;
\n \/\/ }<\/p>\n

}<\/p>\n

void start_close()
\n {
\n for(auto& vc : _vc)
\n {
\n vc.Close();
\n }
\n }<\/p>\n

void start_wait()
\n {
\n for(auto& vc: _vc)
\n {
\n vc.Wait();
\n }
\n }<\/p>\n

~AdmChannel() {}<\/p>\n

private:
\n std::vector<Channel> _vc;
\n int _next;
\n};<\/p>\n

class ProcessPool {
\npublic:
\n ProcessPool(int num):_num(num)
\n {
\n _tb.Register(PrintLog);
\n _tb.Register(Download);
\n _tb.Register(Upload);
\n }<\/p>\n

void Work(int fd) {
\n while (1) {
\n int code=0;
\n ssize_t ret_r = read(fd, &code, sizeof(code));
\n if (ret_r < 0) {
\n perror("read fail!");
\n } else if (ret_r == 0) {
\n std::cout << "w\u7aef\u9000\u51fa" << std::endl;
\n break;
\n }
\n else
\n {
\n if(ret_r==sizeof(code))
\n {
\n std::cout<<"\u5b50\u8fdb\u7a0b[" << getpid<<"]\u6536\u5230\u4e86\u4e00\u4e2a\u9000\u51fa\u7801"<<std::endl;
\n \/\/\u6267\u884c\u5bf9\u5e94\u7684\u8fd9\u4e2a\u4efb\u52a1
\n _tb.Execute(code);
\n }
\n else
\n continue;
\n }
\n }
\n }<\/p>\n

bool Create() {
\n for (int i = 0; i < _num; i++) {
\n int pipefd[2] = {0};
\n int ret_pipe = pipe(pipefd);
\n if (ret_pipe < 0) {
\n perror("pipe fail");
\n return false;
\n }
\n pid_t id = fork();
\n if (id == 0) {
\n close(pipefd[1]);
\n _cm.start_close();\/\/\u8fdb\u7a0b\u662f\u72ec\u7acb\u7684\u6211\u4eec\u5728\u7236\u8fdb\u7a0b\u83b7\u53d6\u7684\u4e00\u4e9b\u5143\u7d20\u6587\u4ef6\u63cf\u8ff0\u7b26\u6211\u4eec\u8fdb\u884c\u5173\u95ed
\n \/\/\u6211\u4eec\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u4f1a\u4e0d\u4f1a\u5173\u95ed\u5462？\u7b54\u6848\u662f\u4e0d\u4f1a\u7684，\u56e0\u4e3a\u5c31\u7b97\u6211\u4eec\u7684\u7236\u8fdb\u7a0b\u5148\u53d1\u751fpush\u4e5f\u4f1a\u53d1\u751f\u5199\u5b9e\u8003\u5457\u3002
\n Work(pipefd[0]);
\n close(pipefd[1]);
\n exit(0);
\n } else if (id > 0) {
\n close(pipefd[0]);
\n _cm.Push(id, pipefd[1]);<\/p>\n

} else {
\n perror("fork fail!");
\n return false;
\n }
\n }
\n return true;
\n }<\/p>\n

void Proc_Start()
\n {
\n \/\/\u9009\u62e9\u4e00\u4e2a\u4efb\u52a1
\n int taskcode = _tb.Code();
\n \/\/\u9009\u62e9\u4e00\u4e2a\u4fe1\u9053\u6765\u5b8c\u6210\u4efb\u52a1\u3002
\n auto&c=_cm.Select();
\n std::cout<<"\u9009\u62e9\u4e86\u4e00\u4e2a\u5b50\u8fdb\u7a0b"<<c.GetName()<<std::endl;
\n \/\/\u53d1\u9001\u5bf9\u5e94\u7684\u4efb\u52a1\u6765\u5b8c\u6210
\n c.Send(taskcode);
\n std::cout<<"\u53d1\u9001\u4e86\u4e00\u4e2a\u5bf9\u5e94\u7684\u4efb\u52a1\u7801："<<taskcode<<std::endl;
\n }
\n void Debug()
\n {
\n _cm.PrintCe();
\n }
\n void StoProcPool()\/\/\u7ec8\u6b62\u8fdb\u7a0b\u6c60
\n {
\n _cm.delete_Stop();
\n }
\n ~ProcessPool() {}
\nprivate:
\n AdmChannel _cm;
\n int _num;
\n TaskManager _tb;
\n};<\/p>\n

tasktable.hpp:<\/h4>\n

#pragma once
\n#include <iostream>
\n#include <vector>
\n#include <ctime><\/p>\n

typedef void (*task_t)();<\/p>\n

\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/debug\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/
\nvoid PrintLog()
\n{
\n std::cout << "\u6211\u662f\u4e00\u4e2a\u6253\u5370\u65e5\u5fd7\u7684\u4efb\u52a1" << std::endl;
\n}<\/p>\n

void Download()
\n{
\n std::cout << "\u6211\u662f\u4e00\u4e2a\u4e0b\u8f7d\u7684\u4efb\u52a1" << std::endl;
\n}<\/p>\n

void Upload()
\n{
\n std::cout << "\u6211\u662f\u4e00\u4e2a\u4e0a\u4f20\u7684\u4efb\u52a1" << std::endl;
\n}
\n\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/<\/p>\n

class TaskManager
\n{
\npublic:
\n TaskManager()
\n {
\n srand(time(nullptr));
\n }
\n void Register(task_t t)
\n {
\n _tasks.push_back(t);
\n }
\n int Code()
\n {
\n return rand() % _tasks.size();
\n }
\n void Execute(int code)
\n {
\n if(code >= 0 && code < _tasks.size())
\n {
\n _tasks[code]();
\n }
\n }
\n ~TaskManager()
\n {}
\nprivate:
\n std::vector<task_t> _tasks;
\n}; <\/p>\n

test.cc<\/span><\/h4>\n

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

int main()
\n{
\n std::cout<<"\u4f60\u597d，\u8fdb\u7a0b\u6c60"<<std::endl;
\n \/\/\u521b\u5efa\u8fdb\u7a0b\u6c60
\n ProcessPool pp(CHANNEL_NUM);
\n pp.Create();
\n \/\/\u542f\u52a8\u8fdb\u7a0b
\n int cnt =10;
\n while(cnt–)
\n {
\n pp.Proc_Start();<\/p>\n

sleep(1);
\n }
\n pp.StoProcPool();<\/p>\n

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

\"\"<\/p>\n","protected":false},"excerpt":{"rendered":"

\u4e8e\u6b64\u6b62？：\u4e2a\u4eba\u4e3b\u9875
\n\u2744\ufe0f\u4e2a\u4eba\u4e13\u680f\u4f20\u9001\u95e8：\u300aLinux\u7bc7\u300b \u300aQT\u767e\u65e5\u7b51\u57fa\u7bc7\u300b \u300a\u7b97\u6cd5\u7bc7\u300b\u00a0
\n\u300aC\u4e0eSTL\u5256\u6790\u7bc7\u300b \u300a\u6570\u636e\u7ed3\u6784\u7bc7\u300b \u300aPython\u57fa\u7840\u7bc7\u300b
\n\u2b50\ufe0f\u7eb5\u6709\u72c2\u98ce\u62d4\u5730\u8d77，\u6211\u4ea6\u4e58\u98ce\u7834\u4e07\u91cc\u2b50\ufe0f \u533f\u540d\u7ba1\u9053\u4e0e\u8fdb\u7a0b\u6c60
\n\u76ee\u5f55\/\u7d22\u5f15：
\n\u76ee\u5f55
\n\u533f\u540d\u7ba1\u9053\u4e0e\u8fdb\u7a0b\u6c60
\n\u76ee\u5f55\/\u7d22\u5f15：
\n\u4e00\u3001\u8fdb\u7a0b\u95f4\u901a\u4fe1\u7684\u80cc\u666f
\n\u4e8c\u3001\u8fdb\u7a0b\u95f4\u901a\u4fe1\u4ecb\u7ecd
\n\u4e09\u3001\u600e\u4e48\u8fdb\u884c\u901a\u4fe1？
\n\u56db\u3001\u8fdb\u7a0b\u95f4\u901a\u4fe1\u7684\u53d1\u5c55
\n\u4e94\u3001\u8fdb\u7a0b\u95f4<\/p>\n","protected":false},"author":2,"featured_media":87939,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[9099,58,43,44],"topic":[],"class_list":["post-87957","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-9099","tag-linux","tag-43","tag-44"],"yoast_head":"\n\u3010Linux \u7bc7\u3011\u6570\u5b57\u4e16\u754c\u7684\u901a\u4fe1\u7ba1\u9053 \u2014\u2014 \u533f\u540d\u7ba1\u9053\u4e0e\u8fdb\u7a0b\u6c60\u6df1\u5ea6\u5b9e\u6218\u89e3\u6790 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/87957.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u3010Linux \u7bc7\u3011\u6570\u5b57\u4e16\u754c\u7684\u901a\u4fe1\u7ba1\u9053 \u2014\u2014 \u533f\u540d\u7ba1\u9053\u4e0e\u8fdb\u7a0b\u6c60\u6df1\u5ea6\u5b9e\u6218\u89e3\u6790 - 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