{"id":122142,"date":"2024-03-24T05:12:36","date_gmt":"2024-03-23T20:12:36","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/go%e3%81%aewaitgroup%e3%81%ab%e3%82%88%e3%82%8b%e9%ab%98%e5%8a%b9%e7%8e%87%e3%81%aa%e4%b8%a6%e8%a1%8c%e3%83%97%e3%83%ad%e3%82%b0%e3%83%a9%e3%83%9f%e3%83%b3%e3%82%b0%ef%bc%9a%e5%ae%9f%e8%b7%b5%e7%9a%84\/"},"modified":"2024-03-27T09:15:28","modified_gmt":"2024-03-27T00:15:28","slug":"go%e3%81%aewaitgroup%e3%81%ab%e3%82%88%e3%82%8b%e9%ab%98%e5%8a%b9%e7%8e%87%e3%81%aa%e4%b8%a6%e8%a1%8c%e3%83%97%e3%83%ad%e3%82%b0%e3%83%a9%e3%83%9f%e3%83%b3%e3%82%b0%ef%bc%9a%e5%ae%9f%e8%b7%b5%e7%9a%84","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/go%e3%81%aewaitgroup%e3%81%ab%e3%82%88%e3%82%8b%e9%ab%98%e5%8a%b9%e7%8e%87%e3%81%aa%e4%b8%a6%e8%a1%8c%e3%83%97%e3%83%ad%e3%82%b0%e3%83%a9%e3%83%9f%e3%83%b3%e3%82%b0%ef%bc%9a%e5%ae%9f%e8%b7%b5%e7%9a%84\/","title":{"rendered":"Go\u306eWaitGroup\u306b\u3088\u308b\u9ad8\u52b9\u7387\u306a\u4e26\u884c\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\uff1a\u5b9f\u8df5\u7684\u306a\u30c6\u30af\u30cb\u30c3\u30af"},"content":{"rendered":"<p>Go\u8a00\u8a9e\u3067\u306f\u3001WaitGroup\u306f\u4e26\u884c\u51e6\u7406\u30bf\u30b9\u30af\u3092\u7ba1\u7406\u3059\u308b\u305f\u3081\u306e\u975e\u5e38\u306b\u4fbf\u5229\u306a\u30c4\u30fc\u30eb\u3067\u3059\u3002\u3053\u308c\u3092\u4f7f\u7528\u3057\u3066\u3001\u4e00\u9023\u306e\u4e26\u884c\u51e6\u7406\u30bf\u30b9\u30af\u304c\u5b8c\u4e86\u3059\u308b\u307e\u3067\u5f8c\u7d9a\u306e\u30b3\u30fc\u30c9\u3092\u5b9f\u884c\u3059\u308b\u306e\u3092\u5f85\u3064\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u4e26\u884c\u51e6\u7406\u3067\u52b9\u7387\u7684\u306a\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u66f8\u304f\u969b\u306b\u5f79\u7acb\u3064\u3001WaitGroup\u306e\u5229\u7528\u306b\u95a2\u3059\u308b\u5b9f\u8df5\u7684\u306a\u30d2\u30f3\u30c8\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n<ol>\n<li>\u30b8\u30e7\u30d6\u3092WaitGroup\u306b\u8ffd\u52a0\u3059\u308b: \u4e26\u5217\u30b8\u30e7\u30d6\u3092\u5b9f\u884c\u3059\u308b\u524d\u306b\u3001\u30b8\u30e7\u30d6\u3092WaitGroup\u306b\u8ffd\u52a0\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002Add\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u3001\u5f85\u6a5f\u3059\u308b\u30b8\u30e7\u30d6\u6570\u3092\u5897\u3084\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u4f8b\u3048\u3070:<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">var<\/span> wg sync.WaitGroup\r\nwg.Add(<span class=\"hljs-number\">1<\/span>)  <span class=\"hljs-comment\">\/\/ \u6dfb\u52a0\u4e00\u4e2a\u4efb\u52a1\u5230WaitGroup<\/span>\r\n<\/code><\/pre>\n<ol>\n<li>\u30b3\u30f3\u30ab\u30ec\u30f3\u30c8\u30bf\u30b9\u30af\u3067Done\u30e1\u30bd\u30c3\u30c9\u3092\u5229\u7528\u3059\u308b\uff1a\u30b3\u30f3\u30ab\u30ec\u30f3\u30c8\u30bf\u30b9\u30af\u304c\u5b8c\u4e86\u3057\u305f\u3089\uff0cWaitGroup\u306b\u5bfe\u3057\u3066\u305d\u306e\u5b8c\u4e86\u3092\u901a\u77e5\u3059\u308b\u305f\u3081\u306bDone\u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3073\u51fa\u3059\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\uff0e\u4f8b\uff1a<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">go<\/span> <span class=\"hljs-function\"><span class=\"hljs-keyword\">func<\/span><span class=\"hljs-params\">()<\/span><\/span> {\r\n<span class=\"hljs-comment\">\/\/ \u5e76\u53d1\u4efb\u52a1\u7684\u4ee3\u7801\u903b\u8f91<\/span>\r\nwg.Done()  <span class=\"hljs-comment\">\/\/ \u4efb\u52a1\u5b8c\u6210\u540e\u8c03\u7528Done\u65b9\u6cd5<\/span>\r\n}()\r\n<\/code><\/pre>\n<ol>\n<li>Wait\u30e1\u30bd\u30c3\u30c9\u3067\u5168\u30bf\u30b9\u30af\u306e\u5b8c\u4e86\u3092\u5f85\u3064: \u5168\u3066\u306e\u4e26\u884c\u30bf\u30b9\u30af\u304cWaitGroup\u306b\u8ffd\u52a0\u3055\u308c\u3001\u5b9f\u884c\u304c\u5b8c\u4e86\u3059\u308b\u3068\u3001Wait\u30e1\u30bd\u30c3\u30c9\u3067\u5168\u30bf\u30b9\u30af\u306e\u5b8c\u4e86\u3092\u5f85\u6a5f\u3067\u304d\u307e\u3059\u3002\u4f8b:<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code>wg.Wait()  <span class=\"hljs-comment\">\/\/ \u7b49\u5f85\u6240\u6709\u4efb\u52a1\u5b8c\u6210<\/span>\r\n<\/code><\/pre>\n<ol>\n<li>WaitGroup\u3092\u7528\u3044\u305f\u4e26\u5217\u30bf\u30b9\u30af\u306e\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u5236\u5fa1: WaitGroup\u306eWait\u30e1\u30bd\u30c3\u30c9\u3068\u30bf\u30a4\u30de\u30fc\u3092\u4f75\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u4e26\u5217\u30bf\u30b9\u30af\u306e\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u5236\u5fa1\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">go<\/span> <span class=\"hljs-function\"><span class=\"hljs-keyword\">func<\/span><span class=\"hljs-params\">()<\/span><\/span> {\r\n<span class=\"hljs-comment\">\/\/ \u5e76\u53d1\u4efb\u52a1\u7684\u4ee3\u7801\u903b\u8f91<\/span>\r\nwg.Done()  <span class=\"hljs-comment\">\/\/ \u4efb\u52a1\u5b8c\u6210\u540e\u8c03\u7528Done\u65b9\u6cd5<\/span>\r\n}()\r\n<span class=\"hljs-keyword\">go<\/span> <span class=\"hljs-function\"><span class=\"hljs-keyword\">func<\/span><span class=\"hljs-params\">()<\/span><\/span> {\r\ntime.Sleep(<span class=\"hljs-number\">5<\/span> * time.Second)  <span class=\"hljs-comment\">\/\/ \u8bbe\u7f6e\u4e00\u4e2a\u5b9a\u65f6\u5668\uff0c\u7b49\u5f855\u79d2\u949f<\/span>\r\nwg.Done()  <span class=\"hljs-comment\">\/\/ \u8d85\u65f6\u540e\u8c03\u7528Done\u65b9\u6cd5<\/span>\r\n}()\r\nwg.Wait()  <span class=\"hljs-comment\">\/\/ \u7b49\u5f85\u6240\u6709\u4efb\u52a1\u5b8c\u6210<\/span>\r\n<\/code><\/pre>\n<ol>\n<li>\u4e26\u884c\u30bf\u30b9\u30af\u306e\u30a8\u30e9\u30fc\u51e6\u7406\u306b\u304a\u3051\u308bWaitGroup\u306e\u6d3b\u7528\uff1a\u4e26\u884c\u30bf\u30b9\u30af\u306b\u304a\u3044\u3066\u30a8\u30e9\u30fc\u3092\u6355\u6349\u3057\u3001\u30bf\u30b9\u30af\u304c\u5b8c\u4e86\u3057\u305f\u5f8c\u306b\u30a8\u30e9\u30fc\u60c5\u5831\u3092\u8a18\u9332\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">var<\/span> (\r\nmu    sync.Mutex\r\ncount <span class=\"hljs-type\">int<\/span>\r\nerrs  []<span class=\"hljs-type\">error<\/span>\r\n)\r\nwg.Add(<span class=\"hljs-number\">1<\/span>)\r\n<span class=\"hljs-keyword\">go<\/span> <span class=\"hljs-function\"><span class=\"hljs-keyword\">func<\/span><span class=\"hljs-params\">()<\/span><\/span> {\r\n<span class=\"hljs-keyword\">defer<\/span> wg.Done()\r\n<span class=\"hljs-comment\">\/\/ \u5e76\u53d1\u4efb\u52a1\u7684\u4ee3\u7801\u903b\u8f91<\/span>\r\nerr := doSomething()\r\n<span class=\"hljs-keyword\">if<\/span> err != <span class=\"hljs-literal\">nil<\/span> {\r\nmu.Lock()\r\nerrs = <span class=\"hljs-built_in\">append<\/span>(errs, err)\r\nmu.Unlock()\r\n}\r\n}()\r\nwg.Wait()\r\n<span class=\"hljs-comment\">\/\/ \u68c0\u67e5\u662f\u5426\u6709\u9519\u8bef\u53d1\u751f<\/span>\r\n<span class=\"hljs-keyword\">if<\/span> <span class=\"hljs-built_in\">len<\/span>(errs) &gt; <span class=\"hljs-number\">0<\/span> {\r\n<span class=\"hljs-comment\">\/\/ \u5904\u7406\u9519\u8bef<\/span>\r\n}\r\n<\/code><\/pre>\n<p>Go\u306b\u3088\u308b\u4e26\u884c\u51e6\u7406\u3092\u52b9\u7387\u7684\u306b\u66f8\u304f\u305f\u3081\u306eWaitGroup\u6d3b\u7528\u30c6\u30af\u30cb\u30c3\u30af\u3092\u7d39\u4ecb\u3057\u3066\u3044\u307e\u3059\u3002\u305c\u3072\u53c2\u8003\u306b\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Go\u8a00\u8a9e\u3067\u306f\u3001WaitGroup\u306f\u4e26\u884c\u51e6\u7406\u30bf\u30b9\u30af\u3092\u7ba1\u7406\u3059\u308b\u305f\u3081\u306e\u975e\u5e38\u306b\u4fbf\u5229\u306a\u30c4\u30fc\u30eb\u3067\u3059\u3002\u3053\u308c\u3092\u4f7f\u7528\u3057\u3066\u3001\u4e00\u9023\u306e\u4e26\u884c\u51e6\u7406\u30bf\u30b9\u30af\u304c\u5b8c\u4e86\u3059\u308b\u307e\u3067\u5f8c\u7d9a\u306e\u30b3\u30fc\u30c9\u3092\u5b9f\u884c\u3059\u308b\u306e\u3092\u5f85\u3064\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002 \u4e26\u884c\u51e6\u7406\u3067\u52b9\u7387\u7684\u306a\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u66f8\u304f [&hellip;]<\/p>\n","protected":false},"author":10,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-122142","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>Go\u306eWaitGroup\u306b\u3088\u308b\u9ad8\u52b9\u7387\u306a\u4e26\u884c\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\uff1a\u5b9f\u8df5\u7684\u306a\u30c6\u30af\u30cb\u30c3\u30af - 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\/ja\/blog\/go\u306ewaitgroup\u306b\u3088\u308b\u9ad8\u52b9\u7387\u306a\u4e26\u884c\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\uff1a\u5b9f\u8df5\u7684\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Go\u306eWaitGroup\u306b\u3088\u308b\u9ad8\u52b9\u7387\u306a\u4e26\u884c\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\uff1a\u5b9f\u8df5\u7684\u306a\u30c6\u30af\u30cb\u30c3\u30af\" \/>\n<meta property=\"og:description\" content=\"Go\u8a00\u8a9e\u3067\u306f\u3001WaitGroup\u306f\u4e26\u884c\u51e6\u7406\u30bf\u30b9\u30af\u3092\u7ba1\u7406\u3059\u308b\u305f\u3081\u306e\u975e\u5e38\u306b\u4fbf\u5229\u306a\u30c4\u30fc\u30eb\u3067\u3059\u3002\u3053\u308c\u3092\u4f7f\u7528\u3057\u3066\u3001\u4e00\u9023\u306e\u4e26\u884c\u51e6\u7406\u30bf\u30b9\u30af\u304c\u5b8c\u4e86\u3059\u308b\u307e\u3067\u5f8c\u7d9a\u306e\u30b3\u30fc\u30c9\u3092\u5b9f\u884c\u3059\u308b\u306e\u3092\u5f85\u3064\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002 \u4e26\u884c\u51e6\u7406\u3067\u52b9\u7387\u7684\u306a\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u66f8\u304f [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/ja\/blog\/go\u306ewaitgroup\u306b\u3088\u308b\u9ad8\u52b9\u7387\u306a\u4e26\u884c\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\uff1a\u5b9f\u8df5\u7684\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2024-03-23T20:12:36+00:00\" 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