{"id":44004,"date":"2023-10-04T19:40:29","date_gmt":"2023-04-08T16:59:32","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/gcache%e6%98%af%e6%8c%87%ef%bc%88go%e8%af%ad%e8%a8%80%ef%bc%89%e4%b8%ad%e7%9a%84%e7%bc%93%e5%ad%98%e3%80%82\/"},"modified":"2024-05-04T02:53:44","modified_gmt":"2024-05-03T18:53:44","slug":"gcache%e6%98%af%e6%8c%87%ef%bc%88go%e8%af%ad%e8%a8%80%ef%bc%89%e4%b8%ad%e7%9a%84%e7%bc%93%e5%ad%98%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/gcache%e6%98%af%e6%8c%87%ef%bc%88go%e8%af%ad%e8%a8%80%ef%bc%89%e4%b8%ad%e7%9a%84%e7%bc%93%e5%ad%98%e3%80%82\/","title":{"rendered":"gcache\u662f\u6307\uff08Go\u8bed\u8a00\uff09\u4e2d\u7684\u7f13\u5b58"},"content":{"rendered":"<h1>&#8220;gcache\u662f\u4ec0\u4e48&#8221;<\/h1>\n<p>gcache\u662f\u4e00\u4e2a\u7528\u4e8eGolang\u7684\u7f13\u5b58\u5e93\uff0c\u53ef\u4ee5\u5c06\u6570\u636e\u6682\u65f6\u5b58\u50a8\u5728\u7f13\u5b58\u4e2d\uff0c\u5e76\u4e14\u5728\u9700\u8981\u65f6\u65b9\u4fbf\u5730\u8fdb\u884c\u7279\u5b9a\u7f13\u5b58\u7684\u5220\u9664\u64cd\u4f5c\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u7279\u5fb4<\/ul>\n<\/li>\n<\/ul>\n<p>\u69d8\u3005\u306a\u6709\u52b9\u671f\u9650\u4ed8\u304d\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u4f5c\u6210\u3067\u304d\u308b<\/p>\n<p>LFU\u3001LRU\u3001ARC<\/p>\n<p>\u30b9\u30ec\u30c3\u30c9\uff08goroutine\uff09\u30bb\u30fc\u30d5<br \/>\n\u30a8\u30f3\u30c8\u30ea\u30fc\u3092\u524a\u9664\u3001\u524a\u9664\u3001\u304a\u3088\u3073\u8ffd\u52a0\u3059\u308b\u30a4\u30d9\u30f3\u30c8\u30cf\u30f3\u30c9\u30e9\u30fc\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u308b<br \/>\n\u30ad\u30e3\u30c3\u30b7\u30e5\u304c\u5b58\u5728\u3057\u306a\u3044\u5834\u5408\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u81ea\u52d5\u7684\u306b\u8aad\u307f\u8fbc\u3093\u3067\u304f\u308c\u308b<\/p>\n<h1>\u7528\u6cd5<\/h1>\n<p>\u8981\u8fdb\u884c\u5b89\u88c5\uff0c\u9700\u8981\u6267\u884cgo get\u547d\u4ee4\u3002<\/p>\n<pre class=\"post-pre\"><code>$ go get -u https:\/\/github.com\/bluele\/gcache\r\n<\/code><\/pre>\n<p>\u4e00\u4e2a\u6700\u7b80\u5355\u7684\u4f8b\u5b50\u5c31\u662f\u8fd9\u6837\u7684\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">package<\/span> <span class=\"n\">main<\/span>\r\n\r\n<span class=\"k\">import<\/span> <span class=\"p\">(<\/span>\r\n <span class=\"s\">\"github.com\/bluele\/gcache\"<\/span>\r\n <span class=\"s\">\"fmt\"<\/span>\r\n<span class=\"p\">)<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"n\">main<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n <span class=\"n\">gc<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">gcache<\/span><span class=\"o\">.<\/span><span class=\"n\">New<\/span><span class=\"p\">(<\/span><span class=\"m\">20<\/span><span class=\"p\">)<\/span><span class=\"o\">.<\/span>\r\n  <span class=\"n\">LRU<\/span><span class=\"p\">()<\/span><span class=\"o\">.<\/span>\r\n  <span class=\"n\">Build<\/span><span class=\"p\">()<\/span>\r\n <span class=\"n\">gc<\/span><span class=\"o\">.<\/span><span class=\"n\">Set<\/span><span class=\"p\">(<\/span><span class=\"s\">\"key\"<\/span><span class=\"p\">,<\/span> <span class=\"s\">\"ok\"<\/span><span class=\"p\">)<\/span>\r\n <span class=\"n\">value<\/span><span class=\"p\">,<\/span> <span class=\"n\">err<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">gc<\/span><span class=\"o\">.<\/span><span class=\"n\">Get<\/span><span class=\"p\">(<\/span><span class=\"s\">\"key\"<\/span><span class=\"p\">)<\/span>\r\n <span class=\"k\">if<\/span> <span class=\"n\">err<\/span> <span class=\"o\">!=<\/span> <span class=\"no\">nil<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"nb\">panic<\/span><span class=\"p\">(<\/span><span class=\"n\">err<\/span><span class=\"p\">)<\/span>\r\n <span class=\"p\">}<\/span>\r\n <span class=\"n\">fmt<\/span><span class=\"o\">.<\/span><span class=\"n\">Println<\/span><span class=\"p\">(<\/span><span class=\"s\">\"Get:\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">value<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u6267\u884c\u540e\uff0c\u5c06\u5728\u63a7\u5236\u53f0\u4e0a\u8f93\u51fa\u5982\u4e0b\u5185\u5bb9\u3002<\/p>\n<pre class=\"post-pre\"><code>Get: ok\r\n<\/code><\/pre>\n<p>\u4f7f\u7528SetWithExpire()\u51fd\u6570\uff0c\u53ef\u4ee5\u8f7b\u677e\u5730\u8bbe\u7f6e\u65f6\u95f4\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">package<\/span> <span class=\"n\">main<\/span>\r\n\r\n<span class=\"k\">import<\/span> <span class=\"p\">(<\/span>\r\n <span class=\"s\">\"github.com\/bluele\/gcache\"<\/span>\r\n <span class=\"s\">\"fmt\"<\/span>\r\n <span class=\"s\">\"time\"<\/span>\r\n<span class=\"p\">)<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"n\">main<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n <span class=\"n\">gc<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">gcache<\/span><span class=\"o\">.<\/span><span class=\"n\">New<\/span><span class=\"p\">(<\/span><span class=\"m\">20<\/span><span class=\"p\">)<\/span><span class=\"o\">.<\/span>\r\n  <span class=\"n\">LRU<\/span><span class=\"p\">()<\/span><span class=\"o\">.<\/span>\r\n  <span class=\"n\">Build<\/span><span class=\"p\">()<\/span>\r\n <span class=\"c\">\/\/ \u6d88\u53bb\u6642\u9593\u306e\u8a2d\u5b9a<\/span>\r\n <span class=\"n\">gc<\/span><span class=\"o\">.<\/span><span class=\"n\">SetWithExpire<\/span><span class=\"p\">(<\/span><span class=\"s\">\"key\"<\/span><span class=\"p\">,<\/span> <span class=\"s\">\"ok\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">time<\/span><span class=\"o\">.<\/span><span class=\"n\">Second<\/span><span class=\"o\">*<\/span><span class=\"m\">10<\/span><span class=\"p\">)<\/span>\r\n <span class=\"n\">value<\/span><span class=\"p\">,<\/span> <span class=\"n\">_<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">gc<\/span><span class=\"o\">.<\/span><span class=\"n\">Get<\/span><span class=\"p\">(<\/span><span class=\"s\">\"key\"<\/span><span class=\"p\">)<\/span>\r\n <span class=\"n\">fmt<\/span><span class=\"o\">.<\/span><span class=\"n\">Println<\/span><span class=\"p\">(<\/span><span class=\"s\">\"Get:\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">value<\/span><span class=\"p\">)<\/span>\r\n\r\n <span class=\"c\">\/\/ Wait for value to expire<\/span>\r\n <span class=\"n\">time<\/span><span class=\"o\">.<\/span><span class=\"n\">Sleep<\/span><span class=\"p\">(<\/span><span class=\"n\">time<\/span><span class=\"o\">.<\/span><span class=\"n\">Second<\/span><span class=\"o\">*<\/span><span class=\"m\">10<\/span><span class=\"p\">)<\/span>\r\n\r\n <span class=\"n\">value<\/span><span class=\"p\">,<\/span> <span class=\"n\">err<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">gc<\/span><span class=\"o\">.<\/span><span class=\"n\">Get<\/span><span class=\"p\">(<\/span><span class=\"s\">\"key\"<\/span><span class=\"p\">)<\/span>\r\n <span class=\"k\">if<\/span> <span class=\"n\">err<\/span> <span class=\"o\">!=<\/span> <span class=\"no\">nil<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"nb\">panic<\/span><span class=\"p\">(<\/span><span class=\"n\">err<\/span><span class=\"p\">)<\/span>\r\n <span class=\"p\">}<\/span>\r\n <span class=\"n\">fmt<\/span><span class=\"o\">.<\/span><span class=\"n\">Println<\/span><span class=\"p\">(<\/span><span class=\"s\">\"Get:\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">value<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u6267\u884c\u4e4b\u540e\uff0c\u5c06\u5728\u63a7\u5236\u53f0\u4e0a\u8f93\u51fa\u5982\u4e0b\u4fe1\u606f\u3002<br \/>\n\u6700\u521d\u7684\u83b7\u53d6\u662f\u6210\u529f\u7684\uff0c\u4f46\u662f\u968f\u7740\u65f6\u95f4\u7684\u63a8\u79fb\uff0c\u7f13\u5b58\u4f1a\u88ab\u6e05\u9664\uff0c\u65e0\u6cd5\u518d\u6b21\u83b7\u53d6\u3002<\/p>\n<pre class=\"post-pre\"><code>Get: ok\r\npanic: Key not found.\r\n\r\ngoroutine 1 [running]:\r\n~~~\r\nexit status 2\r\n<\/code><\/pre>\n<p>\u53ef\u4ee5\u8f7b\u677e\u5730\u66f4\u6539\u8bbe\u7f6e\u5e26\u6709\u6709\u6548\u671f\u9650\u7684\u7f13\u5b58\uff0c\u5177\u4f53\u5982\u4e0b\uff1a<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">func<\/span> <span class=\"n\">main<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"c\">\/\/ size: 10<\/span>\r\n    <span class=\"n\">gc<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">gcache<\/span><span class=\"o\">.<\/span><span class=\"n\">New<\/span><span class=\"p\">(<\/span><span class=\"m\">10<\/span><span class=\"p\">)<\/span><span class=\"o\">.<\/span>\r\n    <span class=\"c\">\/\/ \u3053\u3053\u3067LFU\u3001LRU\u3001ARC\u3092\u8a2d\u5b9a\u3067\u304d\u308b<\/span>\r\n      <span class=\"n\">LFU<\/span><span class=\"p\">()<\/span><span class=\"o\">.<\/span>\r\n      <span class=\"n\">Build<\/span><span class=\"p\">()<\/span>\r\n    <span class=\"n\">gc<\/span><span class=\"o\">.<\/span><span class=\"n\">Set<\/span><span class=\"p\">(<\/span><span class=\"s\">\"key\"<\/span><span class=\"p\">,<\/span> <span class=\"s\">\"value\"<\/span><span class=\"p\">)<\/span>\r\n  <span class=\"p\">}<\/span>\r\n\r\n<\/code><\/pre>\n<p>\u6dfb\u52a0\u5904\u7406\u7a0b\u5e8f\u53ef\u4ee5\u4f7f\u7528AddedFunc()\u6765\u5b9e\u73b0\u3002\uff08\u5220\u9664\u53ef\u4ee5\u4f7f\u7528EvictedFunc()\uff09<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">func<\/span> <span class=\"n\">main<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"n\">gc<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">gcache<\/span><span class=\"o\">.<\/span><span class=\"n\">New<\/span><span class=\"p\">(<\/span><span class=\"m\">2<\/span><span class=\"p\">)<\/span><span class=\"o\">.<\/span>\r\n    <span class=\"n\">AddedFunc<\/span><span class=\"p\">(<\/span><span class=\"k\">func<\/span><span class=\"p\">(<\/span><span class=\"n\">key<\/span><span class=\"p\">,<\/span> <span class=\"n\">value<\/span> <span class=\"k\">interface<\/span><span class=\"p\">{})<\/span> <span class=\"p\">{<\/span>\r\n      <span class=\"n\">fmt<\/span><span class=\"o\">.<\/span><span class=\"n\">Println<\/span><span class=\"p\">(<\/span><span class=\"s\">\"added key:\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">key<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"p\">})<\/span><span class=\"o\">.<\/span>\r\n    <span class=\"n\">Build<\/span><span class=\"p\">()<\/span>\r\n  <span class=\"k\">for<\/span> <span class=\"n\">i<\/span> <span class=\"o\">:=<\/span> <span class=\"m\">0<\/span><span class=\"p\">;<\/span> <span class=\"n\">i<\/span> <span class=\"o\">&lt;<\/span> <span class=\"m\">3<\/span><span class=\"p\">;<\/span> <span class=\"n\">i<\/span><span class=\"o\">++<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">gc<\/span><span class=\"o\">.<\/span><span class=\"n\">Set<\/span><span class=\"p\">(<\/span><span class=\"n\">i<\/span><span class=\"p\">,<\/span> <span class=\"n\">i<\/span><span class=\"o\">*<\/span><span class=\"n\">i<\/span><span class=\"p\">)<\/span>\r\n  <span class=\"p\">}<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u6267\u884c\u7ed3\u679c<\/p>\n<pre class=\"post-pre\"><code>added key: 0\r\nadded key: 1\r\nadded key: 2\r\n<\/code><\/pre>\n<p>\u8fd9\u662f\u4e00\u4e2a\u7b80\u5355\u6613\u7528\u7684\u7f13\u5b58\u5e93\u3002<\/p>\n<h2>\u8bf7\u53c2\u8003<\/h2>\n<ul class=\"post-ul\">https:\/\/github.com\/bluele\/gcache<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>&#8220;gcache\u662f\u4ec0\u4e48&#8221; gcache\u662f\u4e00\u4e2a\u7528\u4e8eGolang\u7684\u7f13\u5b58\u5e93\uff0c\u53ef\u4ee5\u5c06\u6570\u636e\u6682\u65f6\u5b58\u50a8 [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-44004","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>gcache\u662f\u6307\uff08Go\u8bed\u8a00\uff09\u4e2d\u7684\u7f13\u5b58 - Blog - Silicon Cloud<\/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.silicloud.com\/zh\/blog\/gcache\u662f\u6307\uff08go\u8bed\u8a00\uff09\u4e2d\u7684\u7f13\u5b58\u3002\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"gcache\u662f\u6307\uff08Go\u8bed\u8a00\uff09\u4e2d\u7684\u7f13\u5b58\" \/>\n<meta property=\"og:description\" content=\"&#8220;gcache\u662f\u4ec0\u4e48&#8221; gcache\u662f\u4e00\u4e2a\u7528\u4e8eGolang\u7684\u7f13\u5b58\u5e93\uff0c\u53ef\u4ee5\u5c06\u6570\u636e\u6682\u65f6\u5b58\u50a8 [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/gcache\u662f\u6307\uff08go\u8bed\u8a00\uff09\u4e2d\u7684\u7f13\u5b58\u3002\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2023-04-08T16:59:32+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-05-03T18:53:44+00:00\" \/>\n<meta name=\"author\" content=\"\u79d1, \u9896\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u79d1, \u9896\" \/>\n\t<meta name=\"twitter:label2\" 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