{"version":"1.0","type":"rich","provider_name":"Hatena Blog","blog_url":"https://castaneai.hatenablog.com/","url":"https://castaneai.hatenablog.com/entry/go-select-ctx-done-tips","width":"100%","blog_title":"castaneai\u306e\u30d6\u30ed\u30b0","author_url":"https://blog.hatena.ne.jp/castaneai/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fcastaneai.hatenablog.com%2Fentry%2Fgo-select-ctx-done-tips\" title=\"Go: select\u3067ctx.Done()\u3092\u53d7\u4fe1\u3059\u308b\u3068\u304d\u306e\u6ce8\u610f\u70b9 - castaneai\u306e\u30d6\u30ed\u30b0\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","categories":["go"],"provider_url":"https://hatena.blog","image_url":null,"height":"190","author_name":"castaneai","description":"Go\u3067\u975e\u540c\u671f\u7684\u306a\u51e6\u7406\u306e\u4e2d\u65ad\u3092\u691c\u77e5\u3057\u305f\u3044\u5834\u5408\u3001\u6b21\u306e\u3088\u3046\u306b select \u3068 ctx.Done() \u3092\u4f7f\u3063\u3066\u66f8\u304f\u3053\u3068\u304c\u591a\u3044\u3002 \u3068\u3066\u3082\u4fbf\u5229\u306a\u30d1\u30bf\u30fc\u30f3\u306a\u306e\u3060\u304c\u3001\u3044\u304f\u3064\u304b\u4f7f\u3046\u3068\u304d\u306e\u6ce8\u610f\u70b9\u304c\u3042\u308b\u3002 select { case <-ctx.Done(): // done case <-ch: // ... } select\u306b\u3088\u308b\u53d7\u4fe1\u306e\u30e9\u30f3\u30c0\u30e0\u6027 channel\u306b\u5c4a\u3044\u305f\u30bf\u30b9\u30af\u3092\u9806\u756a\u306b\u51e6\u7406\u3057\u3064\u3064\u3001\u30ad\u30e3\u30f3\u30bb\u30eb\u8981\u6c42\u304c\u6765\u305f\u3089\u7d42\u4e86\u3059\u308b\u7c21\u5358\u306a\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u4f8b\u306b\u3059\u308b\u3002 \u30b3\u30fc\u30c9\u306b\u3042\u308b\u901a\u308a\u6b21\u306e\u3088\u3046\u306a\u9806\u5e8f\u3067\u5b9f\u884c\u3055\u308c\u308b\u3002 task1\u3092\u9001\u308b \u30ad\u30e3\u30f3\u30bb\u30eb\u8981\u6c42\u3092\u9001\u308b task2\u3092\u9001\u308b package main import ( \"cont\u2026","title":"Go: select\u3067ctx.Done()\u3092\u53d7\u4fe1\u3059\u308b\u3068\u304d\u306e\u6ce8\u610f\u70b9","published":"2021-07-29 19:06:52"}