{"id":193625,"date":"2024-11-12T23:45:27","date_gmt":"2024-11-12T15:45:27","guid":{"rendered":"https:\/\/server.hk\/cnblog\/193625\/"},"modified":"2024-11-12T23:45:28","modified_gmt":"2024-11-12T15:45:28","slug":"%e5%be%aa%e7%92%b0%e6%b7%b1%e5%85%a5redis%e8%a7%a3%e6%9e%90%e6%ba%90%e7%a2%bc%e4%b8%ad%e7%9a%84%e4%ba%8b%e4%bb%b6%e5%be%aa%e7%92%b0%ef%bc%88redis%e6%ba%90%e7%a2%bc%e8%a7%a3%e6%9e%90%e4%ba%8b%e4%bb%b6","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/193625\/","title":{"rendered":"\u5faa\u74b0\u6df1\u5165Redis\u89e3\u6790\u6e90\u78bc\u4e2d\u7684\u4e8b\u4ef6\u5faa\u74b0\uff08redis\u6e90\u78bc\u89e3\u6790\u4e8b\u4ef6\uff09"},"content":{"rendered":"

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Redis\u662f\u4e00\u500b\u9ad8\u6548\u80fd\u7684\u9375\u503c\u6578\u64da\u5eab\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\u4e2d\uff0c\u5982\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u6578\u64da\u5b58\u5132\u7b49\u3002\u5176\u9ad8\u6548\u7684\u6027\u80fd\u548c\u7c21\u55ae\u7684\u4f7f\u7528\u65b9\u5f0f\u4f7f\u5176\u6210\u70ba\u958b\u767c\u8005\u7684\u9996\u9078\u3002\u5728Redis\u7684\u6e90\u78bc\u4e2d\uff0c\u4e8b\u4ef6\u5faa\u74b0\u662f\u5176\u6838\u5fc3\u7d44\u4ef6\u4e4b\u4e00\uff0c\u8ca0\u8cac\u8655\u7406\u6240\u6709\u7684I\/O\u64cd\u4f5c\u3002\u672c\u6587\u5c07\u6df1\u5165\u89e3\u6790Redis\u6e90\u78bc\u4e2d\u7684\u4e8b\u4ef6\u5faa\u74b0\uff0c\u5e6b\u52a9\u8b80\u8005\u66f4\u597d\u5730\u7406\u89e3\u5176\u904b\u4f5c\u539f\u7406\u3002<\/p>\n

\u4e8b\u4ef6\u5faa\u74b0\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n

\u4e8b\u4ef6\u5faa\u74b0\u662f\u4e00\u7a2e\u8a2d\u8a08\u6a21\u5f0f\uff0c\u4e3b\u8981\u7528\u65bc\u8655\u7406\u975e\u963b\u585eI\/O\u64cd\u4f5c\u3002\u5728Redis\u4e2d\uff0c\u4e8b\u4ef6\u5faa\u74b0\u7684\u4e3b\u8981\u4efb\u52d9\u662f\u76e3\u63a7\u591a\u500b\u6587\u4ef6\u63cf\u8ff0\u7b26\uff0c\u4e26\u5728\u6709\u4e8b\u4ef6\u767c\u751f\u6642\u9032\u884c\u76f8\u61c9\u7684\u8655\u7406\u3002\u9019\u7a2e\u8a2d\u8a08\u4f7f\u5f97Redis\u80fd\u5920\u5728\u55ae\u7dda\u7a0b\u4e2d\u9ad8\u6548\u5730\u8655\u7406\u5927\u91cf\u7684\u4e26\u767c\u8acb\u6c42\u3002<\/p>\n

Redis\u4e2d\u7684\u4e8b\u4ef6\u5faa\u74b0\u5be6\u73fe<\/h2>\n

\u5728Redis\u7684\u6e90\u78bc\u4e2d\uff0c\u4e8b\u4ef6\u5faa\u74b0\u7684\u5be6\u73fe\u4e3b\u8981\u96c6\u4e2d\u5728`server.c`\u6587\u4ef6\u4e2d\u3002\u4ee5\u4e0b\u662f\u4e8b\u4ef6\u5faa\u74b0\u7684\u57fa\u672c\u6d41\u7a0b\uff1a<\/p>\n

\nwhile(1) {\n    \/\/ \u6aa2\u67e5\u662f\u5426\u6709\u9700\u8981\u8655\u7406\u7684\u4e8b\u4ef6\n    int numevents = aeProcessEvents(eventLoop, AE_ALL_EVENTS);\n    \n    \/\/ \u8655\u7406\u5ba2\u6236\u7aef\u8acb\u6c42\n    processClients();\n    \n    \/\/ \u5176\u4ed6\u5b9a\u6642\u4efb\u52d9\n    handleTimers();\n}\n<\/code><\/pre>\n
\u5728\u9019\u6bb5\u4ee3\u78bc\u4e2d\uff0c`aeProcessEvents`\u51fd\u6578\u8ca0\u8cac\u6aa2\u67e5\u548c\u8655\u7406\u6240\u6709\u7684\u4e8b\u4ef6\u3002\u9019\u500b\u51fd\u6578\u6703\u963b\u585e\u76f4\u5230\u6709\u4e8b\u4ef6\u767c\u751f\uff0c\u7136\u5f8c\u6839\u64da\u4e8b\u4ef6\u7684\u985e\u578b\u9032\u884c\u76f8\u61c9\u7684\u8655\u7406\u3002<\/p>\n
\u4e8b\u4ef6\u6e90\u7684\u7ba1\u7406<\/h3>\n
Redis\u4f7f\u7528\u4e86\u4e00\u500b\u540d\u70ba`ae.c`\u7684\u6587\u4ef6\u4f86\u7ba1\u7406\u4e8b\u4ef6\u6e90\u3002\u9019\u500b\u6587\u4ef6\u4e2d\u5b9a\u7fa9\u4e86\u4e8b\u4ef6\u7684\u985e\u578b\u3001\u4e8b\u4ef6\u7684\u56de\u8abf\u51fd\u6578\u4ee5\u53ca\u4e8b\u4ef6\u7684\u72c0\u614b\u3002\u4ee5\u4e0b\u662f\u4e8b\u4ef6\u6e90\u7684\u57fa\u672c\u7d50\u69cb\uff1a<\/p>\n
\ntypedef struct aeEvent {\n    int mask; \/\/ \u4e8b\u4ef6\u7684\u985e\u578b\n    aeFileProc *proc; \/\/ \u4e8b\u4ef6\u7684\u56de\u8abf\u51fd\u6578\n    void *clientData; \/\/ \u4e8b\u4ef6\u7684\u4e0a\u4e0b\u6587\u6578\u64da\n} aeEvent;\n<\/code><\/pre>\n
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\u4e8b\u4ef6\u7684\u56de\u8abf\u8655\u7406<\/h3>\n
\u5728Redis\u4e2d\uff0c\u4e8b\u4ef6\u7684\u56de\u8abf\u51fd\u6578\u662f\u8655\u7406I\/O\u64cd\u4f5c\u7684\u6838\u5fc3\u3002\u4ee5\u5ba2\u6236\u7aef\u8acb\u6c42\u70ba\u4f8b\uff0c\u7576\u6709\u65b0\u7684\u8acb\u6c42\u5230\u9054\u6642\uff0cRedis\u6703\u8abf\u7528\u76f8\u61c9\u7684\u56de\u8abf\u51fd\u6578\u4f86\u8655\u7406\u8a72\u8acb\u6c42\u3002\u4ee5\u4e0b\u662f\u8655\u7406\u5ba2\u6236\u7aef\u8acb\u6c42\u7684\u56de\u8abf\u51fd\u6578\u793a\u4f8b\uff1a<\/p>\n
\nvoid acceptHandler(int fd, int mask) {\n    \/\/ \u63a5\u53d7\u65b0\u7684\u5ba2\u6236\u7aef\u9023\u63a5\n    int clientFd = accept(fd, NULL, NULL);\n    \/\/ \u5c07\u65b0\u7684\u5ba2\u6236\u7aef\u6dfb\u52a0\u5230\u4e8b\u4ef6\u5faa\u74b0\u4e2d\n    aeCreateFileEvent(eventLoop, clientFd, AE_READABLE, readHandler, NULL);\n}\n<\/code><\/pre>\n
\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u7576\u6709\u65b0\u7684\u5ba2\u6236\u7aef\u9023\u63a5\u6642\uff0c`acceptHandler`\u51fd\u6578\u6703\u88ab\u8abf\u7528\uff0c\u4e26\u5c07\u65b0\u7684\u5ba2\u6236\u7aef\u6dfb\u52a0\u5230\u4e8b\u4ef6\u5faa\u74b0\u4e2d\uff0c\u7b49\u5f85\u5f8c\u7e8c\u7684\u8b80\u53d6\u64cd\u4f5c\u3002<\/p>\n
\u7e3d\u7d50<\/h2>\n
Redis\u7684\u4e8b\u4ef6\u5faa\u74b0\u8a2d\u8a08\u4f7f\u5176\u80fd\u5920\u9ad8\u6548\u5730\u8655\u7406\u5927\u91cf\u7684\u4e26\u767c\u8acb\u6c42\uff0c\u9019\u662f\u5176\u6027\u80fd\u512a\u8d8a\u7684\u95dc\u9375\u6240\u5728\u3002\u901a\u904e\u6df1\u5165\u5206\u6790Redis\u6e90\u78bc\u4e2d\u7684\u4e8b\u4ef6\u5faa\u74b0\uff0c\u6211\u5011\u53ef\u4ee5\u66f4\u597d\u5730\u7406\u89e3\u5176\u5167\u90e8\u904b\u4f5c\u539f\u7406\uff0c\u4e26\u5728\u5be6\u969b\u958b\u767c\u4e2d\u61c9\u7528\u9019\u4e9b\u77e5\u8b58\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u80fd\u6578\u64da\u8655\u7406\u7684\u61c9\u7528\u5834\u666f\uff0c\u9078\u64c7\u5408\u9069\u7684\u670d\u52d9\u5668\u67b6\u69cb\u81f3\u95dc\u91cd\u8981\u3002\u82e5\u60a8\u5c0d\u65bc\u9999\u6e2fVPS<\/a><\/code>\u6216\u9999\u6e2f\u4f3a\u670d\u5668<\/a><\/code>\u6709\u8208\u8da3\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8cc7\u8a0a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
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