{"id":85661,"date":"2026-07-27T20:08:41","date_gmt":"2026-07-27T12:08:41","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/85661.html"},"modified":"2026-07-27T20:08:41","modified_gmt":"2026-07-27T12:08:41","slug":"2-9-%e7%ae%80%e6%98%93-redis-%e6%9c%8d%e5%8a%a1%e5%99%a8%e5%ae%9e%e6%88%98%ef%bc%88%e4%b8%8a%ef%bc%89%ef%bc%9a%e6%9e%b6%e6%9e%84%e8%ae%be%e8%ae%a1%e4%b8%8e%e6%a0%b8%e5%bf%83%e6%95%b0%e6%8d%ae%e7%bb%93","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/85661.html","title":{"rendered":"2.9 \u7b80\u6613 Redis \u670d\u52a1\u5668\u5b9e\u6218\uff08\u4e0a\uff09\uff1a\u67b6\u6784\u8bbe\u8ba1\u4e0e\u6838\u5fc3\u6570\u636e\u7ed3\u6784\u5b9e\u73b0"},"content":{"rendered":"<h2>2.9 \u7b80\u6613 Redis \u670d\u52a1\u5668\u5b9e\u6218&#xff08;\u4e0a&#xff09;&#xff1a;\u67b6\u6784\u8bbe\u8ba1\u4e0e\u6838\u5fc3\u6570\u636e\u7ed3\u6784\u5b9e\u73b0<\/h2>\n<h3>\u5f15\u8a00&#xff1a;\u4ece\u7406\u8bba\u5230\u7efc\u5408\u5b9e\u6218<\/h3>\n<p>\u5728\u8fc7\u53bb\u7684\u51e0\u7ae0\u4e2d&#xff0c;\u6211\u4eec\u5df2\u7ecf\u5b66\u4e60\u4e86 Rust \u5e76\u53d1\u7f16\u7a0b\u7684\u51e0\u5927\u6838\u5fc3\u652f\u67f1&#xff1a;<\/p>\n<ul>\n<li>\u591a\u7ebf\u7a0b (std::thread)<\/li>\n<li>\u5171\u4eab\u5185\u5b58\u4e0e\u9501 (Arc, Mutex, RwLock, dashmap)<\/li>\n<li>\u6d88\u606f\u4f20\u9012 (mpsc, crossbeam-channel)<\/li>\n<li>\u5f02\u6b65\u7f16\u7a0b (Future, async\/await, tokio)<\/li>\n<\/ul>\n<p>\u73b0\u5728&#xff0c;\u662f\u65f6\u5019\u5c06\u8fd9\u4e9b\u77e5\u8bc6\u878d\u4f1a\u8d2f\u901a&#xff0c;\u5e94\u7528\u5230\u4e00\u4e2a\u771f\u5b9e\u3001\u6709\u8da3\u4e14\u5177\u6709\u6311\u6218\u6027\u7684\u9879\u76ee\u4e2d\u4e86\u3002\u6211\u4eec\u5c06\u4ece\u96f6\u5f00\u59cb&#xff0c;\u5206\u4e24\u90e8\u5206\u6784\u5efa\u4e00\u4e2a\u529f\u80fd\u7b80\u5316\u7684\u3001\u652f\u6301\u5e76\u53d1\u7684\u3001\u5f02\u6b65\u7684 Redis \u670d\u52a1\u5668\u3002<\/p>\n<p>Redis \u662f\u4e00\u4e2a\u975e\u5e38\u6d41\u884c\u7684\u9ad8\u6027\u80fd\u5185\u5b58\u952e\u503c\u6570\u636e\u5e93\u3002\u5b83\u7684\u534f\u8bae\u7b80\u5355&#xff0c;\u6838\u5fc3\u529f\u80fd\u6e05\u6670&#xff0c;\u662f\u5b66\u4e60\u7f51\u7edc\u7f16\u7a0b\u548c\u5e76\u53d1\u8bbe\u8ba1\u7684\u7edd\u4f73\u6848\u4f8b\u3002\u901a\u8fc7\u8fd9\u4e2a\u9879\u76ee&#xff0c;\u4f60\u5c06\u4eb2\u624b\u5b9e\u8df5\u5982\u4f55\u8bbe\u8ba1\u4e00\u4e2a\u9ad8\u6027\u80fd\u7f51\u7edc\u670d\u52a1&#xff0c;\u5982\u4f55\u7ba1\u7406\u670d\u52a1\u72b6\u6001&#xff0c;\u4ee5\u53ca\u5982\u4f55\u5904\u7406\u5ba2\u6237\u7aef\u547d\u4ee4\u3002<\/p>\n<p>\u5728\u672c\u7ae0&#xff08;\u4e0a\u7bc7&#xff09;&#xff0c;\u6211\u4eec\u5c06\u4e13\u6ce8\u4e8e\u9879\u76ee\u7684\u8bbe\u8ba1\u9636\u6bb5&#xff1a;<\/p>\n<li>\u529f\u80fd\u8303\u56f4\u5b9a\u4e49&#xff1a;\u786e\u5b9a\u6211\u4eec\u8981\u5b9e\u73b0\u54ea\u4e9b Redis \u547d\u4ee4\u3002<\/li>\n<li>\u67b6\u6784\u8bbe\u8ba1&#xff1a;\u9009\u62e9\u540c\u6b65\u8fd8\u662f\u5f02\u6b65&#xff1f;\u5982\u4f55\u7ec4\u7ec7\u4ee3\u7801&#xff1f;<\/li>\n<li>\u6838\u5fc3\u6570\u636e\u7ed3\u6784&#xff1a;\u5982\u4f55\u7ebf\u7a0b\u5b89\u5168\u5730\u5b58\u50a8\u952e\u503c\u5bf9&#xff1f;<\/li>\n<li>\u547d\u4ee4\u89e3\u6790&#xff1a;\u5982\u4f55\u89e3\u6790 Redis \u7684 RESP \u534f\u8bae&#xff1f;<\/li>\n<p>\u5728\u4e0b\u4e00\u7ae0&#xff08;\u4e0b\u7bc7&#xff09;&#xff0c;\u6211\u4eec\u5c06\u5b9e\u73b0\u670d\u52a1\u5668\u7684\u4e3b\u5faa\u73af\u3001\u5e76\u53d1\u5904\u7406\u5ba2\u6237\u7aef\u8fde\u63a5\u4ee5\u53ca\u547d\u4ee4\u7684\u6267\u884c\u903b\u8f91\u3002<\/p>\n<h3>1. \u529f\u80fd\u8303\u56f4\u5b9a\u4e49<\/h3>\n<p>\u5b8c\u6574\u7684 Redis \u62e5\u6709\u6570\u767e\u4e2a\u547d\u4ee4&#xff0c;\u6211\u4eec\u4e0d\u53ef\u80fd\u5168\u90e8\u5b9e\u73b0\u3002\u4f5c\u4e3a\u4e00\u4e2a\u5b66\u4e60\u9879\u76ee&#xff0c;\u6211\u4eec\u5c06\u76ee\u6807\u9501\u5b9a\u5728\u6700\u6838\u5fc3\u3001\u6700\u6709\u4ee3\u8868\u6027\u7684\u51e0\u7c7b\u547d\u4ee4\u4e0a\u3002<\/p>\n<h4>\u6211\u4eec\u8981\u5b9e\u73b0\u7684\u547d\u4ee4<\/h4>\n<ul>\n<li>\u8fde\u63a5\u7ba1\u7406:\n<ul>\n<li>PING: \u6d4b\u8bd5\u670d\u52a1\u5668\u662f\u5426\u5728\u7ebf\u3002<\/li>\n<li>ECHO message: \u56de\u663e\u6d88\u606f\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u5b57\u7b26\u4e32 (String) \u64cd\u4f5c:\n<ul>\n<li>SET key value: \u8bbe\u7f6e\u952e\u503c\u3002<\/li>\n<li>GET key: \u83b7\u53d6\u952e\u503c\u3002<\/li>\n<li>INCR key: \u5c06\u952e\u7684\u503c\u52a0\u4e00\u3002<\/li>\n<li>DECR key: \u5c06\u952e\u7684\u503c\u51cf\u4e00\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u54c8\u5e0c (Hash) \u64cd\u4f5c:\n<ul>\n<li>HSET key field value: \u8bbe\u7f6e\u54c8\u5e0c\u4e2d\u7684\u5b57\u6bb5\u503c\u3002<\/li>\n<li>HGET key field: \u83b7\u53d6\u54c8\u5e0c\u4e2d\u7684\u5b57\u6bb5\u503c\u3002<\/li>\n<li>HGETALL key: \u83b7\u53d6\u54c8\u5e0c\u4e2d\u7684\u6240\u6709\u5b57\u6bb5\u548c\u503c\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u5217\u8868 (List) \u64cd\u4f5c:\n<ul>\n<li>LPUSH key value [value &#8230;]: \u5c06\u4e00\u4e2a\u6216\u591a\u4e2a\u503c\u63d2\u5165\u5230\u5217\u8868\u5934\u90e8\u3002<\/li>\n<li>RPUSH key value [value &#8230;]: \u5c06\u4e00\u4e2a\u6216\u591a\u4e2a\u503c\u63d2\u5165\u5230\u5217\u8868\u5c3e\u90e8\u3002<\/li>\n<li>LPOP key: \u79fb\u9664\u5e76\u83b7\u53d6\u5217\u8868\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\u3002<\/li>\n<li>RPOP key: \u79fb\u9664\u5e76\u83b7\u53d6\u5217\u8868\u7684\u6700\u540e\u4e00\u4e2a\u5143\u7d20\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>\u8fd9\u4e9b\u547d\u4ee4\u6db5\u76d6\u4e86 Redis \u6700\u5e38\u7528\u7684\u6570\u636e\u7c7b\u578b&#xff0c;\u8db3\u4ee5\u8ba9\u6211\u4eec\u6784\u5efa\u4e00\u4e2a\u6709\u5b9e\u9645\u610f\u4e49\u7684\u670d\u52a1\u5668\u3002<\/p>\n<h3>2. \u67b6\u6784\u8bbe\u8ba1<\/h3>\n<p>\u5728\u6784\u5efa\u7f51\u7edc\u670d\u52a1\u65f6&#xff0c;\u4e00\u4e2a\u6838\u5fc3\u7684\u51b3\u7b56\u662f\u9009\u62e9 I\/O \u6a21\u578b\u548c\u5e76\u53d1\u6a21\u578b\u3002<\/p>\n<h4>I\/O \u4e0e\u5e76\u53d1\u6a21\u578b\u9009\u62e9<\/h4>\n<li>\n<p>\u6bcf\u8fde\u63a5\u4e00\u7ebf\u7a0b&#xff08;Thread-per-connection&#xff09;&#xff1a;<\/p>\n<ul>\n<li>\u6a21\u578b&#xff1a;\u4e3b\u7ebf\u7a0b accept \u8fde\u63a5&#xff0c;\u7136\u540e\u4e3a\u6bcf\u4e2a\u8fde\u63a5 spawn \u4e00\u4e2a\u65b0\u7684\u64cd\u4f5c\u7cfb\u7edf\u7ebf\u7a0b\u3002<\/li>\n<li>\u4f18\u70b9&#xff1a;\u5b9e\u73b0\u7b80\u5355\u76f4\u89c2&#xff0c;\u4ee3\u7801\u662f\u540c\u6b65\u963b\u585e\u5f0f\u7684&#xff0c;\u6613\u4e8e\u7f16\u5199\u548c\u63a8\u7406\u3002<\/li>\n<li>\u7f3a\u70b9&#xff1a;\u65e0\u6cd5\u6269\u5c55\u5230\u5927\u91cf\u8fde\u63a5&#xff08;C10K \u95ee\u9898&#xff09;\u3002\u7ebf\u7a0b\u662f\u6602\u8d35\u8d44\u6e90&#xff0c;\u521b\u5efa\u4e0a\u4e07\u4e2a\u7ebf\u7a0b\u4f1a\u8017\u5c3d\u7cfb\u7edf\u5185\u5b58\u548c\u8c03\u5ea6\u80fd\u529b\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u5f02\u6b65 I\/O \u4e0e\u4e8b\u4ef6\u5faa\u73af&#xff08;Asynchronous I\/O with Event Loop&#xff09;&#xff1a;<\/p>\n<ul>\n<li>\u6a21\u578b&#xff1a;\u4f7f\u7528 tokio \u8fd9\u6837\u7684\u5f02\u6b65\u8fd0\u884c\u65f6\u3002\u6240\u6709 I\/O \u64cd\u4f5c\u90fd\u662f\u975e\u963b\u585e\u7684\u3002\u5c11\u91cf\u7684\u5de5\u4f5c\u7ebf\u7a0b\u901a\u8fc7\u4e8b\u4ef6\u5faa\u73af\u6765\u7ba1\u7406\u6210\u5343\u4e0a\u4e07\u7684\u5e76\u53d1\u8fde\u63a5&#xff08;\u4efb\u52a1&#xff09;\u3002<\/li>\n<li>\u4f18\u70b9&#xff1a;\u6781\u9ad8\u7684\u5e76\u53d1\u80fd\u529b&#xff0c;\u8d44\u6e90\u5360\u7528\u5c11&#xff0c;\u6027\u80fd\u4f18\u5f02\u3002<\/li>\n<li>\u7f3a\u70b9&#xff1a;\u4ee3\u7801\u6d89\u53ca async\/await&#xff0c;\u5fc3\u667a\u8d1f\u62c5\u6bd4\u540c\u6b65\u4ee3\u7801\u7a0d\u9ad8\u3002<\/li>\n<\/ul>\n<\/li>\n<p>\u8003\u8651\u5230\u6211\u4eec\u7684\u76ee\u6807\u662f\u6784\u5efa\u4e00\u4e2a\u9ad8\u6027\u80fd\u7684\u670d\u52a1\u5668&#xff0c;\u5e76\u4e14\u6211\u4eec\u5df2\u7ecf\u5b66\u4e60\u4e86 tokio&#xff0c;\u5f02\u6b65 I\/O \u6a21\u578b\u662f\u5fc5\u7136\u7684\u9009\u62e9\u3002<\/p>\n<h4>\u6574\u4f53\u67b6\u6784<\/h4>\n<p>\u6211\u4eec\u7684\u670d\u52a1\u5668\u5c06\u7531\u4ee5\u4e0b\u51e0\u4e2a\u5173\u952e\u90e8\u5206\u7ec4\u6210&#xff1a;<\/p>\n<li>\n<p>\u4e3b\u76d1\u542c\u5faa\u73af (Listener Loop)&#xff1a;<\/p>\n<ul>\n<li>\u5728\u4e3b async fn main \u4e2d\u3002<\/li>\n<li>\u4f7f\u7528 tokio::net::TcpListener \u7ed1\u5b9a\u7aef\u53e3\u5e76\u5f02\u6b65\u5730 accept \u65b0\u7684 TCP \u8fde\u63a5\u3002<\/li>\n<li>\u6bcf\u5f53\u6709\u65b0\u8fde\u63a5\u8fdb\u6765&#xff0c;\u5c31 tokio::spawn \u4e00\u4e2a\u65b0\u7684\u5f02\u6b65\u4efb\u52a1\u6765\u5904\u7406\u8fd9\u4e2a\u5ba2\u6237\u7aef\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u8fde\u63a5\u5904\u7406\u4efb\u52a1 (Connection Handler Task)&#xff1a;<\/p>\n<ul>\n<li>\u6bcf\u4e2a\u5ba2\u6237\u7aef\u8fde\u63a5\u90fd\u7531\u4e00\u4e2a\u72ec\u7acb\u7684\u5f02\u6b65\u4efb\u52a1\u5904\u7406\u3002<\/li>\n<li>\u5728\u4e00\u4e2a\u5faa\u73af\u4e2d&#xff0c;\u4ece TCP \u6d41\u4e2d\u8bfb\u53d6\u6570\u636e&#xff0c;\u89e3\u6790\u6210 Redis \u547d\u4ee4\u3002<\/li>\n<li>\u6267\u884c\u547d\u4ee4&#xff0c;\u5e76\u5c06\u7ed3\u679c\u5199\u56de TCP \u6d41\u3002<\/li>\n<li>\u5904\u7406\u8fde\u63a5\u5173\u95ed\u548c\u9519\u8bef\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u5171\u4eab\u72b6\u6001\/\u6570\u636e\u5b58\u50a8 (Shared State \/ Data Store)&#xff1a;<\/p>\n<ul>\n<li>\u6240\u6709\u5ba2\u6237\u7aef\u4efb\u52a1\u90fd\u9700\u8981\u8bbf\u95ee\u548c\u4fee\u6539\u540c\u4e00\u4e2a\u6570\u636e\u96c6&#xff08;\u6211\u4eec\u7684\u952e\u503c\u5b58\u50a8&#xff09;\u3002<\/li>\n<li>\u8fd9\u4e2a\u6570\u636e\u5b58\u50a8\u5fc5\u987b\u662f\u7ebf\u7a0b\u5b89\u5168\u7684\u3002<\/li>\n<li>\u5b83\u5c06\u7531\u4e00\u4e2a\u72ec\u7acb\u7684\u6a21\u5757\u7ba1\u7406&#xff0c;\u5e76\u901a\u8fc7 Arc \u5728\u6240\u6709\u4efb\u52a1\u95f4\u5171\u4eab\u3002<\/li>\n<\/ul>\n<\/li>\n<p>graph TD<br \/>\n    subgraph Tokio \u8fd0\u884c\u65f6<br \/>\n        direction LR<\/p>\n<p>        subgraph Worker\u7ebf\u7a0b\u6c60<br \/>\n            W1[Worker 1]<br \/>\n            W2[Worker 2]<br \/>\n            W&#8230;<br \/>\n            Wn[Worker N]<br \/>\n        end<\/p>\n<p>        subgraph \u4e3b\u4efb\u52a1<br \/>\n            A[main()] &#8211;&gt; B(TcpListener.bind);<br \/>\n            B &#8211;&gt; C{loop: listener.accept().await};<br \/>\n        end<\/p>\n<p>        subgraph &#034;\u5171\u4eab\u6570\u636e\u5b58\u50a8 (Arc&lt;Db&gt;)&#034;<br \/>\n            DB[(HashMap\/DashMap)]<br \/>\n        end<\/p>\n<p>        C &#8212; \u65b0\u8fde\u63a5 &#8211;&gt; D(tokio::spawn);<br \/>\n        D &#8212; \u521b\u5efa &#8211;&gt; T1[\u8fde\u63a51\u5904\u7406\u4efb\u52a1];<br \/>\n        D &#8212; \u521b\u5efa &#8211;&gt; T2[\u8fde\u63a52\u5904\u7406\u4efb\u52a1];<br \/>\n        D &#8212; \u521b\u5efa &#8211;&gt; T&#8230;<br \/>\n        D &#8212; \u521b\u5efa &#8211;&gt; Tn[\u8fde\u63a5N\u5904\u7406\u4efb\u52a1];<\/p>\n<p>        T1 &#8212; \u8bbf\u95ee &#8211;&gt; DB;<br \/>\n        T2 &#8212; \u8bbf\u95ee &#8211;&gt; DB;<br \/>\n        Tn &#8212; \u8bbf\u95ee &#8211;&gt; DB;<\/p>\n<p>        T1 &#8212; \u8c03\u5ea6\u5230 &#8211;&gt; W1;<br \/>\n        T2 &#8212; \u8c03\u5ea6\u5230 &#8211;&gt; W2;<br \/>\n        Tn &#8212; \u8c03\u5ea6\u5230 &#8211;&gt; W1;<br \/>\n    end<\/p>\n<h3>3. \u6838\u5fc3\u6570\u636e\u7ed3\u6784\u8bbe\u8ba1<\/h3>\n<p>\u8fd9\u662f\u6211\u4eec\u9879\u76ee\u4e2d\u6700\u91cd\u8981\u7684\u90e8\u5206\u4e4b\u4e00\u3002\u5982\u4f55\u8bbe\u8ba1\u4e00\u4e2a\u65e2\u80fd\u652f\u6301\u591a\u79cd Redis \u6570\u636e\u7c7b\u578b&#xff0c;\u53c8\u662f\u7ebf\u7a0b\u5b89\u5168\u7684\u6570\u636e\u5b58\u50a8&#xff1f;<\/p>\n<h4>\u6570\u636e\u7c7b\u578b\u679a\u4e3e<\/h4>\n<p>\u9996\u5148&#xff0c;Redis \u7684\u4e00\u4e2a key \u53ef\u4ee5\u5bf9\u5e94\u4e0d\u540c\u7c7b\u578b\u7684\u503c&#xff08;String, List, Hash&#xff09;\u3002\u6211\u4eec\u53ef\u4ee5\u7528\u4e00\u4e2a enum \u6765\u8868\u793a\u3002<\/p>\n<p><span class=\"token comment\">\/\/ src\/data.rs<\/span><br \/>\n<span class=\"token keyword\">use<\/span> <span class=\"token namespace\">std<span class=\"token punctuation\">::<\/span>collections<span class=\"token punctuation\">::<\/span><\/span><span class=\"token punctuation\">{<\/span><span class=\"token class-name\">HashMap<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">VecDeque<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ Redis \u503c\u53ef\u4ee5\u662f\u4e0d\u540c\u7684\u7c7b\u578b<\/span><br \/>\n<span class=\"token attribute attr-name\">#[derive(Debug, Clone)]<\/span><br \/>\n<span class=\"token keyword\">pub<\/span> <span class=\"token keyword\">enum<\/span> <span class=\"token type-definition class-name\">RedisValue<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token class-name\">String<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Vec<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">u8<\/span><span class=\"token operator\">&gt;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token comment\">\/\/ \u4f7f\u7528 Vec&lt;u8&gt; \u800c\u4e0d\u662f String \u6765\u5b58\u50a8\u539f\u59cb\u5b57\u8282<\/span><br \/>\n    <span class=\"token class-name\">List<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">VecDeque<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token class-name\">Vec<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">u8<\/span><span class=\"token operator\">&gt;&gt;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n    <span class=\"token class-name\">Hash<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">HashMap<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token class-name\">Vec<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">u8<\/span><span class=\"token operator\">&gt;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">Vec<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">u8<\/span><span class=\"token operator\">&gt;&gt;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<ul>\n<li>\u6211\u4eec\u4f7f\u7528 Vec&lt;u8&gt; \u800c\u4e0d\u662f String&#xff0c;\u56e0\u4e3a Redis \u7684\u952e\u548c\u503c\u90fd\u662f\u4e8c\u8fdb\u5236\u5b89\u5168\u7684\u3002<\/li>\n<li>\u5217\u8868\u4f7f\u7528 VecDeque&#xff08;\u53cc\u7aef\u961f\u5217&#xff09;&#xff0c;\u56e0\u4e3a\u5b83\u5728\u5934\u90e8\u548c\u5c3e\u90e8\u63d2\u5165\/\u5220\u9664\u90fd\u662f O(1) \u7684&#xff0c;\u5b8c\u7f8e\u5339\u914d LPUSH\/RPUSH\/LPOP\/RPOP \u7684\u9700\u6c42\u3002<\/li>\n<\/ul>\n<h4>\u7ebf\u7a0b\u5b89\u5168\u7684\u6570\u636e\u5b58\u50a8<\/h4>\n<p>\u73b0\u5728&#xff0c;\u6211\u4eec\u9700\u8981\u4e00\u4e2a\u5730\u65b9\u6765\u5b58\u50a8\u4ece key (\u901a\u5e38\u662f String \u6216 Vec&lt;u8&gt;) \u5230 RedisValue \u7684\u6620\u5c04\u3002\u8fd9\u4e2a\u5730\u65b9\u5fc5\u987b\u662f\u7ebf\u7a0b\u5b89\u5168\u7684\u3002\u6211\u4eec\u6709\u51e0\u4e2a\u9009\u62e9&#xff1a;<\/p>\n<li>Arc&lt;Mutex&lt;HashMap&lt;&#8230;&gt;&gt;&gt;: \u7b80\u5355&#xff0c;\u4f46\u6027\u80fd\u5dee\u3002\u4e00\u628a\u5927\u9501\u4f1a\u9501\u4f4f\u6240\u6709\u64cd\u4f5c\u3002<\/li>\n<li>Arc&lt;RwLock&lt;HashMap&lt;&#8230;&gt;&gt;&gt;: \u5728\u8bfb\u591a\u5199\u5c11\u65f6\u6bd4 Mutex \u597d&#xff0c;\u4f46\u4ecd\u7136\u662f\u5355\u628a\u9501&#xff0c;\u5199\u64cd\u4f5c\u4f1a\u963b\u585e\u6240\u6709\u8bfb\u64cd\u4f5c\u3002<\/li>\n<li>\u6211\u4eec\u81ea\u5236\u7684 ConcurrentHashMap: \u53ef\u884c&#xff0c;\u4f46\u529f\u80fd\u6709\u9650\u3002<\/li>\n<li>DashMap: \u6700\u4f73\u9009\u62e9\u3002\u5b83\u63d0\u4f9b\u4e86\u9ad8\u6027\u80fd\u7684\u5e76\u53d1\u8bbf\u95ee\u548c\u4e30\u5bcc\u7684\u539f\u5b50 API&#xff0c;\u975e\u5e38\u9002\u5408\u8fd9\u4e2a\u573a\u666f\u3002<\/li>\n<p>\u6211\u4eec\u9009\u62e9 DashMap\u3002<\/p>\n<p><span class=\"token comment\">\/\/ src\/db.rs<\/span><br \/>\n<span class=\"token keyword\">use<\/span> <span class=\"token keyword\">crate<\/span><span class=\"token module-declaration namespace\"><span class=\"token punctuation\">::<\/span>data<span class=\"token punctuation\">::<\/span><\/span><span class=\"token class-name\">RedisValue<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">use<\/span> <span class=\"token namespace\">dashmap<span class=\"token punctuation\">::<\/span><\/span><span class=\"token class-name\">DashMap<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">use<\/span> <span class=\"token namespace\">std<span class=\"token punctuation\">::<\/span>sync<span class=\"token punctuation\">::<\/span><\/span><span class=\"token class-name\">Arc<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u5b9a\u4e49\u6570\u636e\u5e93\u7684\u6838\u5fc3\u7ed3\u6784<\/span><br \/>\n<span class=\"token attribute attr-name\">#[derive(Debug, Clone)]<\/span><br \/>\n<span class=\"token keyword\">pub<\/span> <span class=\"token keyword\">struct<\/span> <span class=\"token type-definition class-name\">Db<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u4f7f\u7528 Arc \u5305\u88f9 DashMap&#xff0c;\u4ee5\u4fbf\u5728\u591a\u4e2a\u5730\u65b9\u5171\u4eab\u5b83<\/span><br \/>\n    <span class=\"token comment\">\/\/ DashMap \u7684 Key \u662f String&#xff0c;Value \u662f\u6211\u4eec\u5b9a\u4e49\u7684 RedisValue<\/span><br \/>\n    entries<span class=\"token punctuation\">:<\/span> <span class=\"token class-name\">Arc<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token class-name\">DashMap<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">RedisValue<\/span><span class=\"token operator\">&gt;&gt;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">impl<\/span> <span class=\"token class-name\">Db<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">pub<\/span> <span class=\"token keyword\">fn<\/span> <span class=\"token function-definition function\">new<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">-&gt;<\/span> <span class=\"token keyword\">Self<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">Db<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            entries<span class=\"token punctuation\">:<\/span> <span class=\"token class-name\">Arc<\/span><span class=\"token punctuation\">::<\/span><span class=\"token function\">new<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">DashMap<\/span><span class=\"token punctuation\">::<\/span><span class=\"token function\">new<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u8fd9\u91cc\u53ef\u4ee5\u6dfb\u52a0\u4e0e\u6570\u636e\u5e93\u4ea4\u4e92\u7684\u8f85\u52a9\u65b9\u6cd5<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u4f8b\u5982: get_string, set_string \u7b49<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u8fd9\u6837\u53ef\u4ee5\u5c06 DashMap \u7684\u5177\u4f53\u5b9e\u73b0\u7ec6\u8282\u5c01\u88c5\u8d77\u6765<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">impl<\/span> <span class=\"token class-name\">Default<\/span> <span class=\"token keyword\">for<\/span> <span class=\"token class-name\">Db<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">fn<\/span> <span class=\"token function-definition function\">default<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">-&gt;<\/span> <span class=\"token keyword\">Self<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">Self<\/span><span class=\"token punctuation\">::<\/span><span class=\"token function\">new<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u6211\u4eec\u5c06 DashMap \u5305\u88c5\u5728\u4e00\u4e2a Db \u7ed3\u6784\u4f53\u4e2d\u3002\u8fd9\u662f\u4e00\u79cd\u826f\u597d\u7684\u8bbe\u8ba1\u5b9e\u8df5&#xff0c;\u79f0\u4e3a\u201cNewtype Pattern\u201d\u3002\u5b83\u5141\u8bb8\u6211\u4eec&#xff1a;<\/p>\n<ul>\n<li>\u5c01\u88c5\u5b9e\u73b0\u7ec6\u8282&#xff1a;\u5c06\u6765\u5982\u679c\u6211\u4eec\u60f3\u628a DashMap \u6362\u6210\u5176\u4ed6\u5b9e\u73b0&#xff0c;\u53ea\u9700\u8981\u4fee\u6539 Db \u5185\u90e8&#xff0c;\u800c\u4e0d\u9700\u8981\u6539\u52a8\u670d\u52a1\u5668\u7684\u5176\u4ed6\u4ee3\u7801\u3002<\/li>\n<li>\u6dfb\u52a0\u7279\u5b9a\u4e8e\u9886\u57df\u7684\u65b9\u6cd5&#xff1a;\u6211\u4eec\u53ef\u4ee5\u5728 Db \u4e0a\u5b9e\u73b0 get_string, lpush \u7b49\u65b9\u6cd5&#xff0c;\u63d0\u4f9b\u66f4\u9ad8\u7ea7\u3001\u66f4\u5b89\u5168\u7684\u63a5\u53e3\u3002<\/li>\n<\/ul>\n<h3>4. \u547d\u4ee4\u89e3\u6790&#xff1a;RESP \u534f\u8bae<\/h3>\n<p>Redis \u4f7f\u7528\u4e00\u79cd\u540d\u4e3a REdis Serialization Protocol (RESP) \u7684\u534f\u8bae\u3002\u8fd9\u662f\u4e00\u79cd\u4eba\u7c7b\u53ef\u8bfb\u3001\u5b9e\u73b0\u7b80\u5355\u7684\u6587\u672c\u534f\u8bae\u3002RESP \u53ef\u4ee5\u5e8f\u5217\u5316\u4e0d\u540c\u7684\u6570\u636e\u7c7b\u578b&#xff0c;\u5982\u7b80\u5355\u5b57\u7b26\u4e32\u3001\u9519\u8bef\u3001\u6574\u6570\u3001\u6279\u91cf\u5b57\u7b26\u4e32\u548c\u6570\u7ec4\u3002<\/p>\n<h4>RESP \u6570\u636e\u7c7b\u578b<\/h4>\n<table>\n<tr>\u7c7b\u578b\u9996\u5b57\u8282\u793a\u4f8b\u63cf\u8ff0<\/tr>\n<tbody>\n<tr>\n<td>\u7b80\u5355\u5b57\u7b26\u4e32<\/td>\n<td>&#043;<\/td>\n<td>&#043;OK\\\\r\\\\n<\/td>\n<td>\u7528\u4e8e\u4f20\u8f93\u975e\u4e8c\u8fdb\u5236\u5b89\u5168\u7684\u7b80\u5355\u5b57\u7b26\u4e32&#xff0c;\u5982\u72b6\u6001\u56de\u590d\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u9519\u8bef<\/td>\n<td>&#8211;<\/td>\n<td>-ERR unknown command\\\\r\\\\n<\/td>\n<td>\u7528\u4e8e\u4f20\u8f93\u9519\u8bef\u4fe1\u606f\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u6574\u6570<\/td>\n<td>:<\/td>\n<td>:1000\\\\r\\\\n<\/td>\n<td>64 \u4f4d\u6709\u7b26\u53f7\u6574\u6570\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u6279\u91cf\u5b57\u7b26\u4e32<\/td>\n<td>$<\/td>\n<td>$6\\\\r\\\\nfoobar\\\\r\\\\n<\/td>\n<td>\u7528\u4e8e\u4f20\u8f93\u4e8c\u8fdb\u5236\u5b89\u5168\u7684\u5b57\u7b26\u4e32&#xff0c;\u6700\u957f 512MB\u3002<\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td><\/td>\n<td>$0\\\\r\\\\n\\\\r\\\\n<\/td>\n<td>\u7a7a\u5b57\u7b26\u4e32\u3002<\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td><\/td>\n<td>$-1\\\\r\\\\n<\/td>\n<td>Null \u503c&#xff08;\u4e0d\u5b58\u5728&#xff09;\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u6570\u7ec4<\/td>\n<td>*<\/td>\n<td>*2\\\\r\\\\n$3\\\\r\\\\nfoo\\\\r\\\\n$3\\\\r\\\\nbar\\\\r\\\\n<\/td>\n<td>\u7528\u4e8e\u4f20\u8f93\u5176\u4ed6 RESP \u7c7b\u578b\u7684\u96c6\u5408\u3002<\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td><\/td>\n<td>*-1\\\\r\\\\n<\/td>\n<td>Null \u6570\u7ec4\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u5ba2\u6237\u7aef\u53d1\u9001\u7684\u547d\u4ee4\u603b\u662f\u4ee5 RESP \u6570\u7ec4 \u7684\u5f62\u5f0f\u3002\u4f8b\u5982&#xff0c;\u547d\u4ee4 SET mykey myvalue \u4f1a\u88ab\u7f16\u7801\u4e3a&#xff1a;<\/p>\n<p>*3\\\\r\\\\n$3\\\\r\\\\nSET\\\\r\\\\n$5\\\\r\\\\nmykey\\\\r\\\\n$7\\\\r\\\\nmyvalue\\\\r\\\\n<\/p>\n<p>\u8fd9\u8868\u793a\u4e00\u4e2a\u5305\u542b 3 \u4e2a\u5143\u7d20\u7684\u6570\u7ec4&#xff0c;\u6bcf\u4e2a\u5143\u7d20\u90fd\u662f\u4e00\u4e2a\u6279\u91cf\u5b57\u7b26\u4e32\u3002<\/p>\n<h4>\u89e3\u6790\u5668\u8bbe\u8ba1<\/h4>\n<p>\u6211\u4eec\u9700\u8981\u7f16\u5199\u4e00\u4e2a\u89e3\u6790\u5668&#xff0c;\u5b83\u80fd\u4ece TcpStream \u8bfb\u53d6\u5b57\u8282\u6d41&#xff0c;\u5e76\u5c06\u5176\u8f6c\u6362\u4e3a\u6211\u4eec\u80fd\u7406\u89e3\u7684\u547d\u4ee4\u7ed3\u6784\u3002<\/p>\n<p>\u9996\u5148&#xff0c;\u5b9a\u4e49\u547d\u4ee4\u7684 enum\u3002<\/p>\n<p><span class=\"token comment\">\/\/ src\/command.rs<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u4ee3\u8868\u89e3\u6790\u540e\u7684\u547d\u4ee4<\/span><br \/>\n<span class=\"token attribute attr-name\">#[derive(Debug)]<\/span><br \/>\n<span class=\"token keyword\">pub<\/span> <span class=\"token keyword\">enum<\/span> <span class=\"token type-definition class-name\">Command<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token class-name\">Ping<\/span><span class=\"token punctuation\">,<\/span><br \/>\n    <span class=\"token class-name\">Echo<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Vec<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">u8<\/span><span class=\"token operator\">&gt;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n    <span class=\"token class-name\">Set<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">Vec<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">u8<\/span><span class=\"token operator\">&gt;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n    <span class=\"token class-name\">Get<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n    <span class=\"token class-name\">Incr<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n    <span class=\"token class-name\">Decr<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n    <span class=\"token class-name\">HSet<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">Vec<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">u8<\/span><span class=\"token operator\">&gt;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">Vec<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">u8<\/span><span class=\"token operator\">&gt;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n    <span class=\"token class-name\">HGet<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">Vec<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">u8<\/span><span class=\"token operator\">&gt;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n    <span class=\"token class-name\">HGetAll<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n    <span class=\"token class-name\">LPush<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">Vec<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token class-name\">Vec<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">u8<\/span><span class=\"token operator\">&gt;&gt;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n    <span class=\"token class-name\">RPush<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">Vec<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token class-name\">Vec<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">u8<\/span><span class=\"token operator\">&gt;&gt;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n    <span class=\"token class-name\">LPop<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n    <span class=\"token class-name\">RPop<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n    <span class=\"token class-name\">Unknown<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u63a5\u4e0b\u6765&#xff0c;\u662f\u89e3\u6790\u5668\u7684\u6838\u5fc3\u903b\u8f91\u3002\u4ece TCP \u6d41\u4e2d\u89e3\u6790 RESP \u662f\u4e00\u4e2a\u6709\u72b6\u6001\u7684\u8fc7\u7a0b&#xff0c;\u56e0\u4e3a\u4e00\u4e2a TCP \u5305\u53ef\u80fd\u4e0d\u5305\u542b\u5b8c\u6574\u7684\u547d\u4ee4\u3002\u6211\u4eec\u9700\u8981\u4e00\u4e2a\u7f13\u51b2\u548c\u89e3\u6790\u5faa\u73af\u3002<\/p>\n<p>\u4e3a\u4e86\u7b80\u5316&#xff0c;\u6211\u4eec\u53ef\u4ee5\u5148\u5047\u8bbe\u6211\u4eec\u4e00\u6b21\u6027\u6536\u5230\u4e86\u5b8c\u6574\u7684\u547d\u4ee4\u6570\u636e\u3002<\/p>\n<p><span class=\"token comment\">\/\/ src\/resp.rs<\/span><\/p>\n<p><span class=\"token keyword\">use<\/span> <span class=\"token keyword\">crate<\/span><span class=\"token module-declaration namespace\"><span class=\"token punctuation\">::<\/span>command<span class=\"token punctuation\">::<\/span><\/span><span class=\"token class-name\">Command<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u4e00\u4e2a\u7b80\u5355\u7684 RESP \u5e27\u7684\u679a\u4e3e<\/span><br \/>\n<span class=\"token attribute attr-name\">#[derive(Debug, Clone)]<\/span><br \/>\n<span class=\"token keyword\">pub<\/span> <span class=\"token keyword\">enum<\/span> <span class=\"token type-definition class-name\">Frame<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token class-name\">Simple<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n    <span class=\"token class-name\">Error<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n    <span class=\"token class-name\">Integer<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">i64<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n    <span class=\"token class-name\">Bulk<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Vec<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">u8<\/span><span class=\"token operator\">&gt;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n    <span class=\"token class-name\">Array<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Vec<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token class-name\">Frame<\/span><span class=\"token operator\">&gt;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n    <span class=\"token class-name\">Null<\/span><span class=\"token punctuation\">,<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u8fd9\u662f\u4e00\u4e2a\u7b80\u5316\u7684\u89e3\u6790\u51fd\u6570&#xff0c;\u5047\u8bbe buf \u5305\u542b\u4e00\u4e2a\u5b8c\u6574\u7684 RESP \u5e27<\/span><br \/>\n<span class=\"token comment\">\/\/ \u751f\u4ea7\u7ea7\u7684\u89e3\u6790\u5668\u8981\u590d\u6742\u5f97\u591a&#xff0c;\u9700\u8981\u5904\u7406\u4e0d\u5b8c\u6574\u7684\u6d41<\/span><br \/>\n<span class=\"token keyword\">pub<\/span> <span class=\"token keyword\">fn<\/span> <span class=\"token function-definition function\">parse_frame<\/span><span class=\"token punctuation\">(<\/span>buf<span class=\"token punctuation\">:<\/span> <span class=\"token operator\">&amp;<\/span><span class=\"token punctuation\">[<\/span><span class=\"token keyword\">u8<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">-&gt;<\/span> <span class=\"token class-name\">Result<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Frame<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">usize<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span><span class=\"token lifetime-annotation symbol\">&#039;static<\/span> <span class=\"token keyword\">str<\/span><span class=\"token operator\">&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">match<\/span> buf<span class=\"token punctuation\">.<\/span><span class=\"token function\">get<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">Some<\/span><span class=\"token punctuation\">(<\/span><span class=\"token char string\">b&#039;&#043;&#039;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token function\">parse_simple_string<\/span><span class=\"token punctuation\">(<\/span>buf<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n        <span class=\"token class-name\">Some<\/span><span class=\"token punctuation\">(<\/span><span class=\"token char string\">b&#039;*&#039;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token function\">parse_array<\/span><span class=\"token punctuation\">(<\/span>buf<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n        <span class=\"token class-name\">Some<\/span><span class=\"token punctuation\">(<\/span><span class=\"token char string\">b&#039;$&#039;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token function\">parse_bulk_string<\/span><span class=\"token punctuation\">(<\/span>buf<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n        _ <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token class-name\">Err<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Unsupported frame type&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/ &#8230; (\u5404\u79cd parse_* \u51fd\u6570\u7684\u5b9e\u73b0) &#8230;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u89e3\u6790\u547d\u4ee4\u6570\u7ec4<\/span><br \/>\n<span class=\"token keyword\">pub<\/span> <span class=\"token keyword\">fn<\/span> <span class=\"token function-definition function\">parse_command<\/span><span class=\"token punctuation\">(<\/span>frame<span class=\"token punctuation\">:<\/span> <span class=\"token class-name\">Frame<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">-&gt;<\/span> <span class=\"token class-name\">Result<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token class-name\">Command<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span><span class=\"token lifetime-annotation symbol\">&#039;static<\/span> <span class=\"token keyword\">str<\/span><span class=\"token operator\">&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">let<\/span> array <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">match<\/span> frame <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">Frame<\/span><span class=\"token punctuation\">::<\/span><span class=\"token class-name\">Array<\/span><span class=\"token punctuation\">(<\/span>arr<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> arr<span class=\"token punctuation\">,<\/span><br \/>\n        _ <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token keyword\">return<\/span> <span class=\"token class-name\">Err<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Client command must be an array&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">if<\/span> array<span class=\"token punctuation\">.<\/span><span class=\"token function\">is_empty<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token class-name\">Err<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Empty command&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u5c06 Frame::Bulk \u8f6c\u6362\u4e3a String \u6216 Vec&lt;u8&gt;<\/span><br \/>\n    <span class=\"token keyword\">let<\/span> command_name_frame <span class=\"token operator\">&#061;<\/span> array<span class=\"token punctuation\">.<\/span><span class=\"token function\">get<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">unwrap<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">let<\/span> command_name <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">match<\/span> command_name_frame <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">Frame<\/span><span class=\"token punctuation\">::<\/span><span class=\"token class-name\">Bulk<\/span><span class=\"token punctuation\">(<\/span>data<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token class-name\">String<\/span><span class=\"token punctuation\">::<\/span><span class=\"token function\">from_utf8<\/span><span class=\"token punctuation\">(<\/span>data<span class=\"token punctuation\">.<\/span><span class=\"token function\">clone<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">map_err<\/span><span class=\"token punctuation\">(<\/span><span class=\"token closure-params\"><span class=\"token closure-punctuation punctuation\">|<\/span>_<span class=\"token closure-punctuation punctuation\">|<\/span><\/span> <span class=\"token string\">&#034;Command name is not valid UTF-8&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">?<\/span><span class=\"token punctuation\">,<\/span><br \/>\n        _ <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token keyword\">return<\/span> <span class=\"token class-name\">Err<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Command name must be a bulk string&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">let<\/span> command_name <span class=\"token operator\">&#061;<\/span> command_name<span class=\"token punctuation\">.<\/span><span class=\"token function\">to_uppercase<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">match<\/span> command_name<span class=\"token punctuation\">.<\/span><span class=\"token function\">as_str<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token string\">&#034;PING&#034;<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token class-name\">Ok<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Command<\/span><span class=\"token punctuation\">::<\/span><span class=\"token class-name\">Ping<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n        <span class=\"token string\">&#034;ECHO&#034;<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token comment\">\/\/ &#8230; \u5b9e\u73b0 ECHO \u7684\u53c2\u6570\u89e3\u6790 &#8230;<\/span><br \/>\n            <span class=\"token class-name\">Ok<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Command<\/span><span class=\"token punctuation\">::<\/span><span class=\"token class-name\">Unknown<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;ECHO not implemented&#034;<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">into<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span><br \/>\n        <span class=\"token string\">&#034;SET&#034;<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token comment\">\/\/ &#8230; \u5b9e\u73b0 SET \u7684\u53c2\u6570\u89e3\u6790 &#8230;<\/span><br \/>\n            <span class=\"token class-name\">Ok<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Command<\/span><span class=\"token punctuation\">::<\/span><span class=\"token class-name\">Unknown<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;SET not implemented&#034;<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">into<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span><br \/>\n        <span class=\"token comment\">\/\/ &#8230; \u5176\u4ed6\u547d\u4ee4 &#8230;<\/span><br \/>\n        _ <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token class-name\">Ok<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Command<\/span><span class=\"token punctuation\">::<\/span><span class=\"token class-name\">Unknown<\/span><span class=\"token punctuation\">(<\/span>command_name<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u6ce8\u610f&#xff1a;\u4e00\u4e2a\u5b8c\u6574\u7684\u3001\u5065\u58ee\u7684 RESP \u89e3\u6790\u5668\u9700\u8981\u5904\u7406\u5f88\u591a\u8fb9\u754c\u60c5\u51b5&#xff0c;\u4f8b\u5982\u4e0d\u5b8c\u6574\u7684\u5e27\u3001\u7f13\u51b2\u533a\u7ba1\u7406\u7b49\u3002\u5728 tokio \u751f\u6001\u4e2d&#xff0c;\u901a\u5e38\u4f7f\u7528 tokio_util::codec \u6765\u5b9e\u73b0\u8fd9\u79cd\u6709\u72b6\u6001\u7684\u6d41\u89e3\u6790\u3002\u4e3a\u4e86\u805a\u7126\u4e8e\u9879\u76ee\u6574\u4f53&#xff0c;\u6211\u4eec\u8fd9\u91cc\u7684\u89e3\u6790\u5668\u4f1a\u8fdb\u884c\u7b80\u5316\u3002<\/p>\n<h3>\u9879\u76ee\u7ed3\u6784\u6574\u5408<\/h3>\n<p>\u73b0\u5728&#xff0c;\u6211\u4eec\u7684\u9879\u76ee\u76ee\u5f55\u770b\u8d77\u6765\u50cf\u8fd9\u6837&#xff1a;<\/p>\n<p>src\/<br \/>\n\u251c\u2500\u2500 main.rs         # \u670d\u52a1\u5668\u5165\u53e3&#xff0c;\u76d1\u542c\u5faa\u73af<br \/>\n\u251c\u2500\u2500 db.rs           # \u6570\u636e\u5e93\u6838\u5fc3&#xff0c;\u4f7f\u7528 DashMap<br \/>\n\u251c\u2500\u2500 data.rs         # \u5b9a\u4e49 RedisValue \u679a\u4e3e<br \/>\n\u251c\u2500\u2500 command.rs      # \u5b9a\u4e49 Command \u679a\u4e3e<br \/>\n\u251c\u2500\u2500 resp.rs         # RESP \u534f\u8bae\u89e3\u6790\u903b\u8f91 (\u5f85\u8be6\u7ec6\u5b9e\u73b0)<br \/>\n\u2514\u2500\u2500 connection.rs   # (\u5c06\u5728\u4e0b\u7bc7\u5b9e\u73b0) \u5904\u7406\u5355\u4e2a\u5ba2\u6237\u7aef\u8fde\u63a5\u7684\u903b\u8f91<\/p>\n<h4>main.rs \u7684\u9aa8\u67b6<\/h4>\n<p><span class=\"token comment\">\/\/ src\/main.rs<\/span><br \/>\n<span class=\"token keyword\">mod<\/span> <span class=\"token module-declaration namespace\">command<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">mod<\/span> <span class=\"token module-declaration namespace\">data<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">mod<\/span> <span class=\"token module-declaration namespace\">db<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">mod<\/span> <span class=\"token module-declaration namespace\">resp<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/ mod connection; \/\/ \u7a0d\u540e\u6dfb\u52a0<\/span><\/p>\n<p><span class=\"token keyword\">use<\/span> <span class=\"token namespace\">db<span class=\"token punctuation\">::<\/span><\/span><span class=\"token class-name\">Db<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">use<\/span> <span class=\"token namespace\">tokio<span class=\"token punctuation\">::<\/span>net<span class=\"token punctuation\">::<\/span><\/span><span class=\"token class-name\">TcpListener<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token attribute attr-name\">#[tokio::main]<\/span><br \/>\n<span class=\"token keyword\">async<\/span> <span class=\"token keyword\">fn<\/span> <span class=\"token function-definition function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">-&gt;<\/span> <span class=\"token class-name\">Result<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">Box<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">dyn<\/span> <span class=\"token namespace\">std<span class=\"token punctuation\">::<\/span>error<span class=\"token punctuation\">::<\/span><\/span><span class=\"token class-name\">Error<\/span><span class=\"token operator\">&gt;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">let<\/span> listener <span class=\"token operator\">&#061;<\/span> <span class=\"token class-name\">TcpListener<\/span><span class=\"token punctuation\">::<\/span><span class=\"token function\">bind<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;127.0.0.1:6379&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token keyword\">await<\/span><span class=\"token operator\">?<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token macro property\">println!<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Mini-Redis is listening on port 6379&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u521b\u5efa\u4e00\u4e2a\u5168\u5c40\u7684\u3001\u7ebf\u7a0b\u5b89\u5168\u7684\u6570\u636e\u5e93\u5b9e\u4f8b<\/span><br \/>\n    <span class=\"token keyword\">let<\/span> db <span class=\"token operator\">&#061;<\/span> <span class=\"token class-name\">Db<\/span><span class=\"token punctuation\">::<\/span><span class=\"token function\">new<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">loop<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">let<\/span> <span class=\"token punctuation\">(<\/span>socket<span class=\"token punctuation\">,<\/span> _<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;<\/span> listener<span class=\"token punctuation\">.<\/span><span class=\"token function\">accept<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token keyword\">await<\/span><span class=\"token operator\">?<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u514b\u9686 Db \u7684\u53e5\u67c4 (\u5185\u90e8\u662f Arc&#xff0c;\u6240\u4ee5\u662f\u8f7b\u91cf\u64cd\u4f5c)<\/span><br \/>\n        <span class=\"token keyword\">let<\/span> db_clone <span class=\"token operator\">&#061;<\/span> db<span class=\"token punctuation\">.<\/span><span class=\"token function\">clone<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token macro property\">println!<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Accepted new connection&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token namespace\">tokio<span class=\"token punctuation\">::<\/span><\/span><span class=\"token function\">spawn<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">async<\/span> <span class=\"token keyword\">move<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token comment\">\/\/ \u5728\u8fd9\u91cc\u8c03\u7528\u8fde\u63a5\u5904\u7406\u903b\u8f91<\/span><br \/>\n            <span class=\"token comment\">\/\/ process_connection(socket, db_clone).await;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h3>\u4e0a\u7bc7\u603b\u7ed3<\/h3>\n<p>\u5728\u672c\u7ae0&#xff0c;\u6211\u4eec\u4e3a\u7b80\u6613 Redis \u670d\u52a1\u5668\u9879\u76ee\u6253\u4e0b\u4e86\u575a\u5b9e\u7684\u5730\u57fa\u3002<\/p>\n<li>\u660e\u786e\u4e86\u76ee\u6807&#xff1a;\u6211\u4eec\u786e\u5b9a\u4e86\u8981\u5b9e\u73b0\u7684\u547d\u4ee4\u96c6&#xff0c;\u6db5\u76d6\u4e86\u591a\u79cd\u6570\u636e\u7c7b\u578b\u3002<\/li>\n<li>\u9009\u62e9\u4e86\u67b6\u6784&#xff1a;\u6211\u4eec\u51b3\u5b9a\u91c7\u7528\u57fa\u4e8e tokio \u7684\u5f02\u6b65 I\/O \u6a21\u578b&#xff0c;\u901a\u8fc7 spawn \u5f02\u6b65\u4efb\u52a1\u6765\u5904\u7406\u5e76\u53d1\u8fde\u63a5&#xff0c;\u8fd9\u662f\u6784\u5efa\u73b0\u4ee3\u9ad8\u6027\u80fd\u7f51\u7edc\u670d\u52a1\u7684\u6807\u51c6\u6a21\u5f0f\u3002<\/li>\n<li>\u8bbe\u8ba1\u4e86\u6838\u5fc3\u6570\u636e\u5b58\u50a8&#xff1a;\u6211\u4eec\u9009\u62e9\u4e86 DashMap \u4f5c\u4e3a\u5e95\u5c42\u5b58\u50a8&#xff0c;\u5e76\u5c06\u5176\u5c01\u88c5\u5728 Db \u7ed3\u6784\u4f53\u4e2d&#xff0c;\u4ee5\u5b9e\u73b0\u7ebf\u7a0b\u5b89\u5168\u548c\u826f\u597d\u7684\u5c01\u88c5\u3002\u540c\u65f6&#xff0c;\u901a\u8fc7 RedisValue enum \u652f\u6301\u4e86\u591a\u79cd\u6570\u636e\u7c7b\u578b\u3002<\/li>\n<li>\u5206\u6790\u4e86\u901a\u4fe1\u534f\u8bae&#xff1a;\u6211\u4eec\u4e86\u89e3\u4e86 Redis \u7684 RESP \u534f\u8bae&#xff0c;\u5e76\u4e3a\u547d\u4ee4\u89e3\u6790\u8bbe\u8ba1\u4e86\u521d\u6b65\u7684\u6570\u636e\u7ed3\u6784 Command \u548c Frame\u3002<\/li>\n<p>\u6211\u4eec\u5df2\u7ecf\u505a\u597d\u4e86\u6240\u6709\u7684\u524d\u671f\u51c6\u5907\u3002\u73b0\u5728&#xff0c;\u6211\u4eec\u6709\u4e86\u4e00\u4e2a\u6e05\u6670\u7684\u84dd\u56fe&#xff0c;\u77e5\u9053\u9700\u8981\u54ea\u4e9b\u7ec4\u4ef6\u4ee5\u53ca\u5b83\u4eec\u5982\u4f55\u534f\u540c\u5de5\u4f5c\u3002<\/p>\n<p>\u5728\u4e0b\u4e00\u7ae0\u4e2d&#xff0c;\u6211\u4eec\u5c06\u5377\u8d77\u8896\u5b50&#xff0c;\u5b8c\u6210\u6700\u6838\u5fc3\u7684\u7f16\u7801\u5de5\u4f5c&#xff1a;\u5b9e\u73b0\u5b8c\u6574\u7684 RESP \u89e3\u6790\u3001\u5904\u7406\u5ba2\u6237\u7aef\u8fde\u63a5\u7684\u5faa\u73af\u3001\u6267\u884c\u5177\u4f53\u7684\u547d\u4ee4\u903b\u8f91&#xff0c;\u6700\u7ec8\u8ba9\u6211\u4eec\u7684\u670d\u52a1\u5668\u771f\u6b63\u201c\u6d3b\u201d\u8d77\u6765\u3002<\/p>\n<h3>\u601d\u8003\u9898<\/h3>\n<li>\u4e3a\u4ec0\u4e48\u6211\u4eec\u9009\u62e9 DashMap \u800c\u4e0d\u662f Arc&lt;RwLock&lt;HashMap&gt;&gt;&#xff1f;\u5728\u6211\u4eec\u7684 Redis \u670d\u52a1\u5668\u573a\u666f\u4e0b&#xff0c;DashMap \u76f8\u6bd4\u540e\u8005\u6700\u5927\u7684\u4f18\u52bf\u662f\u4ec0\u4e48&#xff1f;<\/li>\n<li>\u5728 RedisValue \u4e2d&#xff0c;\u4e3a\u4ec0\u4e48\u6211\u4eec\u9009\u62e9\u7528 Vec&lt;u8&gt; \u6765\u8868\u793a\u5b57\u7b26\u4e32&#xff0c;\u800c\u4e0d\u662f String&#xff1f;\u8fd9\u5bf9\u4e8e\u5b9e\u73b0 Redis \u7684\u4e8c\u8fdb\u5236\u5b89\u5168\u7279\u6027\u6709\u4ec0\u4e48\u610f\u4e49&#xff1f;<\/li>\n<li>RESP \u534f\u8bae\u4e2d&#xff0c;\u4e3a\u4ec0\u4e48\u9700\u8981\u533a\u5206\u201c\u7b80\u5355\u5b57\u7b26\u4e32\u201d&#xff08;Simple String&#xff09;\u548c\u201c\u6279\u91cf\u5b57\u7b26\u4e32\u201d&#xff08;Bulk String&#xff09;&#xff1f;<\/li>\n<li>\u5728\u6211\u4eec\u7684\u67b6\u6784\u4e2d&#xff0c;Db \u7ed3\u6784\u4f53\u88ab clone \u5e76\u4f20\u9012\u7ed9\u6bcf\u4e2a tokio::spawn \u7684\u4efb\u52a1\u3002\u4e3a\u4ec0\u4e48\u8fd9\u4e2a clone \u64cd\u4f5c\u662f\u9ad8\u6548\u7684&#xff1f;<\/li>\n<li>\u4e00\u4e2a\u751f\u4ea7\u7ea7\u7684 RESP \u89e3\u6790\u5668\u9700\u8981\u8003\u8651\u54ea\u4e9b\u6211\u4eec\u5728\u672c\u7ae0\u7b80\u5316\u6216\u5ffd\u7565\u4e86\u7684\u95ee\u9898&#xff1f;&#xff08;\u63d0\u793a&#xff1a;\u60f3\u60f3\u7f51\u7edc\u6570\u636e\u662f\u5982\u4f55\u4ee5\u201c\u6d41\u201d\u7684\u5f62\u5f0f\u5230\u8fbe\u7684&#xff09;\u3002<\/li>\n","protected":false},"excerpt":{"rendered":"<p>2.9 \u7b80\u6613 Redis \u670d\u52a1\u5668\u5b9e\u6218&#xff08;\u4e0a&#xff09;&#xff1a;\u67b6\u6784\u8bbe\u8ba1\u4e0e\u6838\u5fc3\u6570\u636e\u7ed3\u6784\u5b9e\u73b0<br \/>\n\u5f15\u8a00&#xff1a;\u4ece\u7406\u8bba\u5230\u7efc\u5408\u5b9e\u6218<br \/>\n\u5728\u8fc7\u53bb\u7684\u51e0\u7ae0\u4e2d&#xff0c;\u6211\u4eec\u5df2\u7ecf\u5b66\u4e60\u4e86 Rust \u5e76\u53d1\u7f16\u7a0b\u7684\u51e0\u5927\u6838\u5fc3\u652f\u67f1&#xff1a;<br \/>\n\u591a\u7ebf\u7a0b (std::thread)\u5171\u4eab\u5185\u5b58\u4e0e\u9501 (Arc, Mutex, RwLock, dashmap)\u6d88\u606f\u4f20\u9012 (mpsc, crossbeam-channel)\u5f02\u6b65\u7f16\u7a0b (Future, async\/await, tokio)<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[105,206,292,1813,43],"topic":[],"class_list":["post-85661","post","type-post","status-publish","format-standard","hentry","category-server","tag-redis","tag-rust","tag-292","tag-1813","tag-43"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>2.9 \u7b80\u6613 Redis \u670d\u52a1\u5668\u5b9e\u6218\uff08\u4e0a\uff09\uff1a\u67b6\u6784\u8bbe\u8ba1\u4e0e\u6838\u5fc3\u6570\u636e\u7ed3\u6784\u5b9e\u73b0 - \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\/85661.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" 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