{"id":180460,"date":"2024-11-09T10:27:24","date_gmt":"2024-11-09T02:27:24","guid":{"rendered":"https:\/\/server.hk\/cnblog\/180460\/"},"modified":"2024-11-09T10:27:25","modified_gmt":"2024-11-09T02:27:25","slug":"%e6%b7%b1%e5%85%a5%e5%89%96%e6%9e%90redis-%e6%b7%b1%e5%85%a5%e5%89%96%e6%9e%90%e6%a0%b8%e5%bf%83%e4%bb%a3%e7%a2%bc%ef%bc%88redis-%e6%a0%b8%e5%bf%83%e4%bb%a3%e7%a2%bc%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/180460\/","title":{"rendered":"\u6df1\u5165\u5256\u6790Redis \u6df1\u5165\u5256\u6790\u6838\u5fc3\u4ee3\u78bc\uff08redis \u6838\u5fc3\u4ee3\u78bc\uff09"},"content":{"rendered":"<h1 id=\"%e6%b7%b1%e5%85%a5%e5%89%96%e6%9e%90redis%e6%a0%b8%e5%bf%83%e4%bb%a3%e7%a2%bc-sLRrPSUHrH\">\u6df1\u5165\u5256\u6790Redis\u6838\u5fc3\u4ee3\u78bc<\/h1>\n<p>Redis\u662f\u4e00\u500b\u9ad8\u6548\u80fd\u7684\u9375\u503c\u6578\u64da\u5eab\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\uff0c\u5982\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u6578\u64da\u6301\u4e45\u5316\u7b49\u3002\u5176\u6838\u5fc3\u4ee3\u78bc\u7684\u8a2d\u8a08\u548c\u5be6\u73fe\u662f\u5176\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u7684\u57fa\u790e\u3002\u672c\u6587\u5c07\u6df1\u5165\u5256\u6790Redis\u7684\u6838\u5fc3\u4ee3\u78bc\uff0c\u5e6b\u52a9\u8b80\u8005\u7406\u89e3\u5176\u5167\u90e8\u904b\u4f5c\u539f\u7406\u3002<\/p>\n<h2 id=\"redis%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%9e%b6%e6%a7%8b-sLRrPSUHrH\">Redis\u7684\u57fa\u672c\u67b6\u69cb<\/h2>\n<p>Redis\u7684\u67b6\u69cb\u4e3b\u8981\u7531\u4ee5\u4e0b\u5e7e\u500b\u90e8\u5206\u7d44\u6210\uff1a<\/p>\n<ul>\n<li><strong>\u5ba2\u6236\u7aef<\/strong>\uff1a\u7528\u6236\u901a\u904e\u5ba2\u6236\u7aef\u8207Redis\u9032\u884c\u4ea4\u4e92\uff0c\u652f\u6301\u591a\u7a2e\u8a9e\u8a00\u7684\u5ba2\u6236\u7aef\u5eab\u3002<\/li>\n<li><strong>\u670d\u52d9\u5668<\/strong>\uff1aRedis\u670d\u52d9\u5668\u8ca0\u8cac\u8655\u7406\u5ba2\u6236\u7aef\u8acb\u6c42\uff0c\u4e26\u7ba1\u7406\u6578\u64da\u7684\u5b58\u5132\u548c\u6aa2\u7d22\u3002<\/li>\n<li><strong>\u6301\u4e45\u5316<\/strong>\uff1aRedis\u652f\u6301RDB\u548cAOF\u5169\u7a2e\u6301\u4e45\u5316\u65b9\u5f0f\uff0c\u78ba\u4fdd\u6578\u64da\u7684\u5b89\u5168\u6027\u3002<\/li>\n<li><strong>\u6578\u64da\u7d50\u69cb<\/strong>\uff1aRedis\u652f\u6301\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u5982\u5b57\u7b26\u4e32\u3001\u54c8\u5e0c\u3001\u5217\u8868\u3001\u96c6\u5408\u548c\u6709\u5e8f\u96c6\u5408\u7b49\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%a0%b8%e5%bf%83%e4%bb%a3%e7%a2%bc%e5%88%86%e6%9e%90-sLRrPSUHrH\">\u6838\u5fc3\u4ee3\u78bc\u5206\u6790<\/h2>\n<p>Redis\u7684\u6838\u5fc3\u4ee3\u78bc\u4e3b\u8981\u7528C\u8a9e\u8a00\u7de8\u5beb\uff0c\u9019\u4f7f\u5f97\u5176\u5728\u6027\u80fd\u4e0a\u5177\u6709\u512a\u52e2\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u95dc\u9375\u6a21\u584a\u7684\u4ee3\u78bc\u5206\u6790\uff1a<\/p>\n<h3 id=\"%e4%ba%8b%e4%bb%b6%e8%99%95%e7%90%86-sLRrPSUHrH\">\u4e8b\u4ef6\u8655\u7406<\/h3>\n<p>Redis\u4f7f\u7528\u4e8b\u4ef6\u9a45\u52d5\u6a21\u578b\u4f86\u8655\u7406\u5ba2\u6236\u7aef\u8acb\u6c42\u3002\u5176\u6838\u5fc3\u4e8b\u4ef6\u5faa\u74b0\u4ee3\u78bc\u5982\u4e0b\uff1a<\/p>\n<pre><code>\nwhile(1) {\n    \/\/ \u7b49\u5f85\u4e8b\u4ef6\u767c\u751f\n    aeProcessEvents(eventLoop);\n    \/\/ \u8655\u7406\u8acb\u6c42\n    processClientRequests();\n}\n<\/code><\/pre>\n<p>\u5728\u9019\u6bb5\u4ee3\u78bc\u4e2d\uff0c<code>aeProcessEvents<\/code>\u51fd\u6578\u8ca0\u8cac\u76e3\u807d\u548c\u8655\u7406\u4e8b\u4ef6\uff0c\u9019\u4f7f\u5f97Redis\u80fd\u5920\u9ad8\u6548\u5730\u8655\u7406\u5927\u91cf\u4e26\u767c\u8acb\u6c42\u3002<\/p>\n<h3 id=\"%e6%95%b8%e6%93%9a%e5%ad%98%e5%84%b2-sLRrPSUHrH\">\u6578\u64da\u5b58\u5132<\/h3>\n<p>Redis\u7684\u6578\u64da\u5b58\u5132\u4f7f\u7528\u4e86\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u9019\u4e9b\u7d50\u69cb\u7684\u9078\u64c7\u76f4\u63a5\u5f71\u97ff\u5230\u6027\u80fd\u3002\u4f8b\u5982\uff0cRedis\u4f7f\u7528\u5b57\u5178\u4f86\u5b58\u5132\u9375\u503c\u5c0d\uff0c\u5b57\u5178\u7684\u5be6\u73fe\u5982\u4e0b\uff1a<\/p>\n<pre><code>\ntypedef struct dict {\n    dictEntry **table; \/\/ \u54c8\u5e0c\u8868\n    unsigned long size; \/\/ \u54c8\u5e0c\u8868\u5927\u5c0f\n    unsigned long sizemask; \/\/ \u63a9\u78bc\n    unsigned long used; \/\/ \u4f7f\u7528\u7684\u69fd\u4f4d\u6578\n} dict;\n<\/code><\/pre>\n<p>\u9019\u7a2e\u8a2d\u8a08\u4f7f\u5f97Redis\u5728\u67e5\u627e\u548c\u63d2\u5165\u6578\u64da\u6642\u5177\u6709O(1)\u7684\u6642\u9593\u8907\u96dc\u5ea6\u3002<\/p>\n<h3 id=\"%e6%8c%81%e4%b9%85%e5%8c%96%e6%a9%9f%e5%88%b6-sLRrPSUHrH\">\u6301\u4e45\u5316\u6a5f\u5236<\/h3>\n<p>Redis\u7684\u6301\u4e45\u5316\u6a5f\u5236\u662f\u5176\u4e00\u5927\u7279\u9ede\u3002RDB\u6301\u4e45\u5316\u901a\u904e\u5feb\u7167\u7684\u65b9\u5f0f\u4fdd\u5b58\u6578\u64da\uff0c\u800cAOF\u5247\u662f\u5c07\u6bcf\u6b21\u5beb\u64cd\u4f5c\u8a18\u9304\u5230\u65e5\u8a8c\u4e2d\u3002\u4ee5\u4e0b\u662fRDB\u6301\u4e45\u5316\u7684\u6838\u5fc3\u4ee3\u78bc\u7247\u6bb5\uff1a<\/p>\n<pre><code>\nvoid saveRDB(char *filename) {\n    \/\/ \u5275\u5efa\u5feb\u7167\n    createSnapshot(filename);\n    \/\/ \u5beb\u5165\u6578\u64da\n    writeDataToFile(filename);\n}\n<\/code><\/pre>\n<p>\u9019\u6bb5\u4ee3\u78bc\u5c55\u793a\u4e86\u5982\u4f55\u5c07\u5167\u5b58\u4e2d\u7684\u6578\u64da\u4fdd\u5b58\u5230\u78c1\u789f\u4e2d\uff0c\u78ba\u4fdd\u6578\u64da\u4e0d\u6703\u56e0\u70ba\u670d\u52d9\u5668\u5d29\u6f70\u800c\u4e1f\u5931\u3002<\/p>\n<h2 id=\"%e6%80%a7%e8%83%bd%e5%84%aa%e5%8c%96-sLRrPSUHrH\">\u6027\u80fd\u512a\u5316<\/h2>\n<p>Redis\u5728\u6027\u80fd\u512a\u5316\u65b9\u9762\u4e5f\u505a\u4e86\u5927\u91cf\u5de5\u4f5c\u3002\u4f8b\u5982\uff0c\u4f7f\u7528\u5167\u5b58\u6c60\u4f86\u7ba1\u7406\u5167\u5b58\u5206\u914d\uff0c\u6e1b\u5c11\u5167\u5b58\u788e\u7247\uff0c\u63d0\u5347\u6027\u80fd\u3002\u4ee5\u4e0b\u662f\u5167\u5b58\u6c60\u7684\u7c21\u55ae\u5be6\u73fe\uff1a<\/p>\n<pre><code>\nvoid *myMalloc(size_t size) {\n    \/\/ \u4f7f\u7528\u5167\u5b58\u6c60\u5206\u914d\u5167\u5b58\n    return poolAllocate(size);\n}\n<\/code><\/pre>\n<p>\u9019\u6a23\u7684\u8a2d\u8a08\u4f7f\u5f97Redis\u5728\u9ad8\u8ca0\u8f09\u60c5\u6cc1\u4e0b\u4ecd\u80fd\u4fdd\u6301\u7a69\u5b9a\u7684\u6027\u80fd\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-sLRrPSUHrH\">\u7e3d\u7d50<\/h2>\n<p>Redis\u7684\u6838\u5fc3\u4ee3\u78bc\u8a2d\u8a08\u7cbe\u5999\uff0c\u901a\u904e\u4e8b\u4ef6\u9a45\u52d5\u6a21\u578b\u3001\u9748\u6d3b\u7684\u6578\u64da\u7d50\u69cb\u548c\u9ad8\u6548\u7684\u6301\u4e45\u5316\u6a5f\u5236\uff0c\u5be6\u73fe\u4e86\u9ad8\u6027\u80fd\u7684\u6578\u64da\u5b58\u5132\u548c\u6aa2\u7d22\u3002\u5c0d\u65bc\u958b\u767c\u8005\u4f86\u8aaa\uff0c\u6df1\u5165\u7406\u89e3Redis\u7684\u6838\u5fc3\u4ee3\u78bc\u4e0d\u50c5\u80fd\u5920\u5e6b\u52a9\u4ed6\u5011\u66f4\u597d\u5730\u4f7f\u7528\u9019\u500b\u5de5\u5177\uff0c\u9084\u80fd\u5728\u9700\u8981\u6642\u9032\u884c\u6027\u80fd\u8abf\u512a\u548c\u64f4\u5c55\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002\u7121\u8ad6\u662f <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u985e\u578b\u7684 <a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a>\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u53ef\u9760\u7684\u670d\u52d9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6df1\u5165\u5256\u6790Redis\u6838\u5fc3\u4ee3\u7801\uff0c\u63a2\u7d22\u5176\u8bbe\u8ba1\u7406\u5ff5\u3001\u6570\u636e\u7ed3\u6784\u53ca\u6027\u80fd\u4f18\u5316\uff0c\u52a9\u529b\u5f00\u53d1\u8005\u6df1\u5165\u7406\u89e3\u8fd9\u4e00\u9ad8\u6548\u7684\u5185\u5b58\u6570\u636e\u5e93\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-180460","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/180460","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=180460"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/180460\/revisions"}],"predecessor-version":[{"id":180461,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/180460\/revisions\/180461"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=180460"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=180460"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=180460"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}