{"id":2793,"date":"2019-01-31T17:47:04","date_gmt":"2019-01-31T09:47:04","guid":{"rendered":"https:\/\/damogame.cn:15443\/wordpress\/?p=2793"},"modified":"2019-01-31T17:47:04","modified_gmt":"2019-01-31T09:47:04","slug":"%e6%9d%a5%ef%bc%8c%e6%8e%a7%e5%88%b6%e4%b8%80%e4%b8%8b-goroutine-%e7%9a%84%e5%b9%b6%e5%8f%91%e6%95%b0%e9%87%8f","status":"publish","type":"post","link":"https:\/\/i007.cc\/wordpress\/archives\/2793","title":{"rendered":"\u6765\uff0c\u63a7\u5236\u4e00\u4e0b goroutine \u7684\u5e76\u53d1\u6570\u91cf"},"content":{"rendered":"
\n
\n

\u95ee\u9898<\/h2>\n
func main() {\r\n    userCount := math.MaxInt64\r\n    for i := 0; i < userCount; i++ {\r\n        go func(i int) {\r\n         \u00a0 \u00a0\/\/ \u505a\u4e00\u4e9b\u5404\u79cd\u5404\u6837\u7684\u4e1a\u52a1\u903b\u8f91\u5904\u7406\r\n            fmt.Printf(\"go func: %d\\n\", i)\r\n            time.Sleep(time.Second)\r\n        }(i)\r\n    }\r\n}<\/pre>\n
\u5728\u8fd9\u91cc\uff0c\u5047\u8bbe\u00a0userCount<\/code>\u00a0\u662f\u4e00\u4e2a\u5916\u90e8\u4f20\u5165\u7684\u53c2\u6570\uff08\u4e0d\u53ef\u9884\u6d4b\uff0c\u6709\u53ef\u80fd\u503c\u975e\u5e38\u5927\uff09\uff0c\u6709\u4eba\u4f1a\u5168\u90e8\u4e22\u8fdb\u53bb\u5faa\u73af\u3002\u60f3\u7740\u5168\u90e8\u90fd\u5e76\u53d1 goroutine \u53bb\u540c\u65f6\u505a\u67d0\u4e00\u4ef6\u4e8b\u3002\u89c9\u5f97\u8fd9\u6837\u5b50\u4f1a\u6548\u7387\u4f1a\u66f4\u9ad8\uff0c\u5bf9\u4e0d\u5bf9\uff01<\/p>\n<\/section>\n
\u90a3\u4e48\uff0c\u4f60\u89c9\u5f97\u8fd9\u91cc\u6709\u6ca1\u6709\u4ec0\u4e48\u95ee\u9898\uff1f<\/p>\n
\u5669\u68a6\u822c\u7684\u5f00\u59cb<\/h2>\n
\u5f53\u7136\uff0c\u5728\u7279\u5b9a\u573a\u666f\u4e0b\uff0c\u95ee\u9898\u53ef\u5927\u4e86\u3002\u56e0\u4e3a\u5728\u672c\u6587\u88ab\u4e22\u8fdb\u53bb\u540c\u65f6\u5e76\u53d1\u7684\u53ef\u662f\u4e00\u4e2a\u6781\u7aef\u503c\u3002\u6211\u4eec\u53ef\u4ee5\u4e00\u8d77\u89c2\u5bdf\u4e0b\u56fe\u7684\u6307\u6807\u5206\u6790\uff0c\u770b\u770b\u60c5\u51b5\u6709\u591a \u201c\u5d29\u6e83\u201d\u3002\u4e0b\u56fe\u662f\u4e0a\u8ff0\u4ee3\u7801\u7684\u8868\u73b0\uff1a<\/p>\n
\u8f93\u51fa\u7ed3\u679c<\/h3>\n
...\r\ngo func: 5839\r\ngo func: 5840\r\ngo func: 5841\r\ngo func: 5842\r\ngo func: 5915\r\ngo func: 5524\r\ngo func: 5916\r\ngo func: 8209\r\ngo func: 8264\r\nsignal: killed<\/pre>\n
\u5982\u679c\u4f60\u81ea\u5df1\u6267\u884c\u8fc7\u4ee3\u7801\uff0c\u5728 \u201c\u8f93\u51fa\u7ed3\u679c\u201d \u4e0a\u4f60\u4f1a\u9047\u5230\u5982\u4e0b\u95ee\u9898\uff1a<\/p>\n
    \n
  • \u7cfb\u7edf\u8d44\u6e90\u5360\u7528\u7387\u4e0d\u65ad\u4e0a\u6da8<\/li>\n
  • \u8f93\u51fa\u4e00\u5b9a\u6570\u91cf\u540e\uff1a\u63a7\u5236\u53f0\u5c31\u4e0d\u518d\u5237\u65b0\u8f93\u51fa\u6700\u65b0\u7684\u503c\u4e86<\/li>\n
  • \u4fe1\u53f7\u91cf\uff1asignal: killed<\/li>\n<\/ul>\n
    \u77ed\u65f6\u95f4\u5185\u5360\u7528\u7684\u865a\u62df\u5185\u5b58\u66b4\u589e<\/p>\n
    top<\/h3>\n
    PID \u00a0 \u00a0COMMAND \u00a0 \u00a0 \u00a0%CPU \u00a0TIME \u00a0 \u00a0 #TH \u00a0 #WQ \u00a0#PORT MEM \u00a0 \u00a0PURG \u00a0 CMPRS \u00a0PGRP \u00a0PPID \u00a0STATE \u00a0 \u00a0BOOSTS\r\n...\r\n73414 \u00a0test \u00a0 \u00a0 \u00a0 \u00a0 100.2 01:59.50 9\/1 \u00a0 0 \u00a0 \u00a018 \u00a0 \u00a06801M+ 0B \u00a0 \u00a0 114G+ \u00a073403 73403 running \u00a0*0[1]<\/pre>\n
    \u5c0f\u7ed3<\/h3>\n
    \u5982\u679c\u4ed4\u7ec6\u770b\u8fc7\u76d1\u63a7\u5de5\u5177\u7684\u793a\u610f\u56fe\uff0c\u5c31\u53ef\u4ee5\u77e5\u9053\u5176\u5b9e\u6211\u95f4\u9694\u7684\u6267\u884c\u4e86\u4e24\u6b21\uff0c\u80fd\u770b\u5230\u7cfb\u7edf\u95f4\u7684\u4f7f\u7528\u7387\u5e45\u5ea6\u975e\u5e38\u5927\u3002\u5f53\u8fdb\u7a0b\u88ab\u6740\u6389\u540e\uff0c\u6574\u4f53\u53c8\u6062\u590d\u4e3a\u6b63\u5e38\u503c<\/p>\n
    \u5728\u8fd9\u91cc\uff0c\u6211\u4eec\u56de\u5230\u4e3b\u9898\uff0c\u5c31\u662f\u5728\u4e0d\u63a7\u5236\u5e76\u53d1\u7684 goroutine \u6570\u91cf\u00a0\u4f1a\u53d1\u751f\u4ec0\u4e48\u95ee\u9898\uff1f\u5927\u81f4\u5982\u4e0b\uff1a<\/p>\n
      \n
    • CPU \u4f7f\u7528\u7387\u6d6e\u52a8\u4e0a\u6da8<\/li>\n
    • Memory \u5360\u7528\u4e0d\u65ad\u4e0a\u6da8\u3002\u4e5f\u53ef\u4ee5\u770b\u770b CMPRS\uff0c\u5b83\u8868\u793a\u8fdb\u7a0b\u7684\u538b\u7f29\u6570\u636e\u7684\u5b57\u8282\u6570\u3002\u5df2\u7ecf\u5230\u8fbe 114G+ \u4e86<\/li>\n
    • \u4e3b\u8fdb\u7a0b\u5d29\u6e83\uff08\u88ab\u6740\u6389\u4e86\uff09<\/li>\n<\/ul>\n
      \u7b80\u5355\u6765\u8bf4\uff0c\u201c\u5d29\u6e83\u201d \u7684\u539f\u56e0\u5c31\u662f\u5bf9\u7cfb\u7edf\u8d44\u6e90\u7684\u5360\u7528\u8fc7\u5927\u3002\u5e38\u89c1\u7684\u6bd4\u5982\uff1a\u6253\u5f00\u6587\u4ef6\u6570\uff08too many files open\uff09\u3001\u5185\u5b58\u5360\u7528\u7b49\u7b49<\/p>\n
      \u5371\u5bb3<\/h3>\n
      \u5bf9\u8be5\u53f0\u670d\u52a1\u5668\u4ea7\u751f\u975e\u5e38\u5927\u7684\u5f71\u54cd\uff0c\u5f71\u54cd\u81ea\u8eab\u53ca\u76f8\u5173\u8054\u7684\u5e94\u7528\u3002\u5f88\u6709\u53ef\u80fd\u5bfc\u81f4\u4e0d\u53ef\u7528\u6216\u54cd\u5e94\u7f13\u6162\uff0c\u53e6\u5916\u542f\u52a8\u4e86\u590d\u6570 \u201c\u5931\u63a7\u201d \u7684 goroutine\uff0c\u5bfc\u81f4\u7a0b\u5e8f\u6d41\u8f6c\u6df7\u4e71<\/p>\n
      \u89e3\u51b3\u65b9\u6848<\/h2>\n
      \u5728\u524d\u9762\u82b1\u4e86\u5927\u91cf\u7bc7\u5e45\uff0c\u6e32\u67d3\u4e86\u5728\u5b58\u5728\u5927\u91cf\u5e76\u53d1 goroutine \u6570\u91cf\u65f6\uff0c\u4e0d\u63a7\u5236\u7684\u8bdd\u4f1a\u51fa\u73b0 \u201c\u4e25\u91cd\u201d \u7684\u95ee\u9898\uff0c\u63a5\u4e0b\u6765\u4e00\u8d77\u601d\u8003\u4e0b\u89e3\u51b3\u65b9\u6848\u3002\u5982\u4e0b\uff1a<\/p>\n
        \n
      1. \u63a7\u5236\/\u9650\u5236 goroutine \u540c\u65f6\u5e76\u53d1\u8fd0\u884c\u7684\u6570\u91cf<\/li>\n
      2. \u6539\u53d8\u5e94\u7528\u7a0b\u5e8f\u7684\u903b\u8f91\u5199\u6cd5\uff08\u907f\u514d\u5927\u89c4\u6a21\u7684\u4f7f\u7528\u7cfb\u7edf\u8d44\u6e90\u548c\u7b49\u5f85\uff09<\/li>\n
      3. \u8c03\u6574\u670d\u52a1\u7684\u786c\u4ef6\u914d\u7f6e\u3001\u6700\u5927\u6253\u5f00\u6570\u3001\u5185\u5b58\u7b49\u9608\u503c<\/li>\n<\/ol>\n
        \u63a7\u5236 goroutine \u5e76\u53d1\u6570\u91cf<\/h2>\n
        \u63a5\u4e0b\u6765\u6b63\u5f0f\u7684\u5f00\u59cb\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u5e0c\u671b\u4f60\u8ba4\u771f\u9605\u8bfb\u7684\u540c\u65f6\u52a0\u4ee5\u601d\u8003\uff0c\u56e0\u4e3a\u8fd9\u4e2a\u95ee\u9898\u5728\u5b9e\u9645\u9879\u76ee\u4e2d\u771f\u7684\u662f\u592a\u5e38\u89c1\u4e86\uff01<\/p>\n
        \u95ee\u9898\u5df2\u7ecf\u629b\u51fa\u6765\u4e86\uff0c\u4f60\u9700\u8981\u505a\u7684\u662f\u60f3\u60f3\u6709\u4ec0\u4e48\u529e\u6cd5\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u3002\u5efa\u8bae\u4f60\u81ea\u884c\u601d\u8003\u4e00\u4e0b\u6280\u672f\u65b9\u6848\u3002\u518d\u63a5\u7740\u5f80\u4e0b\u770b \ud83d\ude42<\/p>\n
        \u5c1d\u8bd5 chan<\/h3>\n
        func main() {\r\n    userCount := 10\r\n    ch := make(chan bool, 2)\r\n    for i := 0; i < userCount; i++ {\r\n        ch <- true\r\n        go Read(ch, i)\r\n    }\r\n    \r\n    \/\/time.Sleep(time.Second)\r\n}\r\n\r\nfunc Read(ch chan bool, i int) {\r\n    fmt.Printf(\"go func: %d\\n\", i)\r\n    <- ch\r\n}<\/pre>\n
        \u8f93\u51fa\u7ed3\u679c\uff1a<\/p>\n
        go func: 1\r\ngo func: 2\r\ngo func: 3\r\ngo func: 4\r\ngo func: 5\r\ngo func: 6\r\ngo func: 7\r\ngo func: 8\r\ngo func: 0<\/pre>\n
        \u55ef\uff0c\u6211\u4eec\u4f3c\u4e4e\u5f88\u597d\u7684\u63a7\u5236\u4e86 2 \u4e2a 2 \u4e2a\u7684 \u201c\u987a\u5e8f\u201d \u6267\u884c\u591a\u4e2a goroutine\u3002\u4f46\u662f\uff0c\u95ee\u9898\u51fa\u73b0\u4e86\u3002\u4f60\u4ed4\u7ec6\u6570\u4e00\u4e0b\u8f93\u51fa\u7ed3\u679c\uff0c\u624d 9 \u4e2a\u503c\uff1f<\/p>\n
        \u8fd9\u660e\u663e\u5c31\u4e0d\u5bf9\u3002\u539f\u56e0\u51fa\u5728\u5f53\u4e3b\u534f\u7a0b\u7ed3\u675f\u65f6\uff0c\u5b50\u534f\u7a0b\u4e5f\u662f\u4f1a\u88ab\u7ec8\u6b62\u6389\u7684\u3002\u56e0\u6b64\u5269\u4f59\u7684 goroutine \u6ca1\u6765\u53ca\u628a\u503c\u8f93\u51fa\uff0c\u5c31\u88ab\u9001\u4e0a\u8def\u4e86\uff08\u4e0d\u4fe1\u4f60\u628a\u00a0time.Sleep<\/code>\u00a0\u6253\u5f00\u770b\u770b\uff0c\u770b\u770b\u8f93\u51fa\u6570\u91cf\uff09<\/p>\n
        \u5c1d\u8bd5 sync<\/h3>\n
        ...\r\nvar wg = sync.WaitGroup{}\r\n\r\nfunc main() {\r\n    userCount := 10\r\n    for i := 0; i < userCount; i++ {\r\n        wg.Add(1)\r\n        go Read(i)\r\n    }\r\n\r\n    wg.Wait()\r\n}\r\n\r\nfunc Read(i int) {\r\n    defer wg.Done()\r\n    fmt.Printf(\"go func: %d\\n\", i)\r\n}<\/pre>\n
         <\/p>\n
        \u55ef\uff0c\u5355\u7eaf\u7684\u4f7f\u7528\u00a0sync.WaitGroup<\/code>\u00a0\u4e5f\u4e0d\u884c\u3002\u6ca1\u6709\u63a7\u5236\u5230\u540c\u65f6\u5e76\u53d1\u7684 goroutine \u6570\u91cf\uff08\u4ee3\u6307\u8fbe\u4e0d\u5230\u672c\u6587\u6240\u8981\u6c42\u7684\u76ee\u6807\uff09<\/p>\n
        \u5c0f\u7ed3<\/h4>\n
        \u5355\u7eaf\u7b80\u5355\u4f7f\u7528 channel \u6216 sync \u90fd\u6709\u660e\u663e\u7f3a\u9677\uff0c\u4e0d\u884c\u3002\u6211\u4eec\u518d\u770b\u770b\u7ec4\u4ef6\u914d\u5408\u80fd\u4e0d\u80fd\u5b9e\u73b0<\/p>\n
        \u5c1d\u8bd5 chan + sync<\/h3>\n
        ...\r\nvar wg = sync.WaitGroup{}\r\n\r\nfunc main() {\r\n    userCount := 10\r\n    ch := make(chan bool, 2)\r\n    for i := 0; i < userCount; i++ {\r\n        wg.Add(1)\r\n        go Read(ch, i)\r\n    }\r\n\r\n    wg.Wait()\r\n}\r\n\r\nfunc Read(ch chan bool, i int) {\r\n    defer wg.Done()\r\n\r\n    ch <- true\r\n    fmt.Printf(\"go func: %d, time: %d\\n\", i, time.Now().Unix())\r\n    time.Sleep(time.Second)\r\n    <-ch\r\n}<\/pre>\n
         <\/p>\n
        \u8f93\u51fa\u7ed3\u679c\uff1a<\/p>\n
        go func: 9, time: 1547911938\r\ngo func: 1, time: 1547911938\r\ngo func: 6, time: 1547911939\r\ngo func: 7, time: 1547911939\r\ngo func: 8, time: 1547911940\r\ngo func: 0, time: 1547911940\r\ngo func: 3, time: 1547911941\r\ngo func: 2, time: 1547911941\r\ngo func: 4, time: 1547911942\r\ngo func: 5, time: 1547911942<\/pre>\n
        \u4ece\u8f93\u51fa\u7ed3\u679c\u6765\u770b\uff0c\u786e\u5b9e\u5b9e\u73b0\u4e86\u63a7\u5236 goroutine \u4ee5 2 \u4e2a 2 \u4e2a\u7684\u6570\u91cf\u53bb\u6267\u884c\u6211\u4eec\u7684 \u201c\u4e1a\u52a1\u903b\u8f91\u201d\uff0c\u5f53\u7136\u7ed3\u679c\u96c6\u4e5f\u7406\u6240\u5e94\u5f53\u7684\u662f\u4e71\u5e8f\u8f93\u51fa<\/p>\n
        \u65b9\u6848\u4e00\uff1a\u7b80\u5355 Semaphore<\/h3>\n
        \u5728\u786e\u7acb\u4e86\u7b80\u5355\u4f7f\u7528 chan + sync \u7684\u65b9\u6848\u662f\u53ef\u884c\u540e\uff0c\u6211\u4eec\u91cd\u65b0\u5c06\u6d41\u8f6c\u903b\u8f91\u5c01\u88c5\u4e3a\u00a0gsema\uff0c\u4e3b\u7a0b\u5e8f\u53d8\u6210\u5982\u4e0b\uff1a<\/p>\n
        import (\r\n    \"fmt\"\r\n    \"time\"\r\n\r\n    \"github.com\/EDDYCJY\/gsema\"\r\n)\r\n\r\nvar sema = gsema.NewSemaphore(3)\r\n\r\nfunc main() {\r\n    userCount := 10\r\n    for i := 0; i < userCount; i++ {\r\n        go Read(i)\r\n    }\r\n\r\n    sema.Wait()\r\n}\r\n\r\nfunc Read(i int) {\r\n    defer sema.Done()\r\n    sema.Add(1)\r\n\r\n    fmt.Printf(\"go func: %d, time: %d\\n\", i, time.Now().Unix())\r\n    time.Sleep(time.Second)\r\n}<\/pre>\n
         <\/p>\n
        \u5206\u6790\u65b9\u6848<\/h3>\n
        \u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u7a0b\u5e8f\u6267\u884c\u6d41\u7a0b\u5982\u4e0b\uff1a<\/p>\n
          \n
        • \u8bbe\u7f6e\u5141\u8bb8\u7684\u5e76\u53d1\u6570\u76ee\u4e3a 3 \u4e2a<\/li>\n
        • \u5faa\u73af 10 \u6b21\uff0c\u6bcf\u6b21\u542f\u52a8\u4e00\u4e2a goroutine \u6765\u6267\u884c\u4efb\u52a1<\/li>\n
        • \u6bcf\u4e00\u4e2a goroutine \u5728\u5185\u90e8\u5229\u7528\u00a0sema<\/code>\u00a0\u8fdb\u884c\u8c03\u63a7\u662f\u5426\u963b\u585e<\/li>\n
        • \u6309\u5141\u8bb8\u5e76\u53d1\u6570\u9010\u6e10\u91ca\u51fa goroutine\uff0c\u6700\u540e\u7ed3\u675f\u4efb\u52a1<\/li>\n<\/ul>\n
          \u770b\u4e0a\u53bb\u4eba\u6a21\u4eba\u6837\uff0c\u6ca1\u4ec0\u4e48\u4e25\u91cd\u95ee\u9898\u3002\u4f46\u5374\u6709\u4e00\u4e2a \u201c\u5927\u201d \u5751\uff0c\u8ba4\u771f\u770b\u5230\u7b2c\u4e8c\u70b9 \u201c\u6bcf\u6b21\u542f\u52a8\u4e00\u4e2a goroutine\u201d \u8fd9\u53e5\u8bdd\u3002\u8fd9\u91cc\u6709\u70b9\u95ee\u9898\uff0c\u63d0\u524d\u4ea7\u751f\u90a3\u4e48\u591a\u7684 goroutine \u4f1a\u4e0d\u4f1a\u6709\u4ec0\u4e48\u95ee\u9898\uff0c\u63a5\u4e0b\u6765\u4e00\u8d77\u5206\u6790\u4e0b\u5229\u5f0a\uff0c\u5982\u4e0b\uff1a<\/p>\n
          \u5229<\/h4>\n
            \n
          • \u9002\u5408\u91cf\u4e0d\u5927\u3001\u590d\u6742\u5ea6\u4f4e\u7684\u4f7f\u7528\u573a\u666f\n
              \n
            • \u51e0\u767e\u51e0\u5343\u4e2a\u3001\u51e0\u5341\u4e07\u4e2a\u4e5f\u662f\u53ef\u4ee5\u63a5\u53d7\u7684\uff08\u770b\u5177\u4f53\u4e1a\u52a1\u573a\u666f\uff09<\/li>\n
            • \u5b9e\u9645\u4e1a\u52a1\u903b\u8f91\u5728\u8fd0\u884c\u524d\u5c31\u5df2\u7ecf\u88ab\u963b\u585e\u7b49\u5f85\u4e86\uff08\u56e0\u4e3a\u5e76\u53d1\u6570\u53d7\u9650\uff09\uff0c\u57fa\u672c\u5b9e\u9645\u4e1a\u52a1\u903b\u8f91\u635f\u8017\u7684\u6027\u80fd\u6bd4 goroutine \u672c\u8eab\u5927<\/li>\n
            • goroutine \u672c\u8eab\u5f88\u8f7b\u4fbf\uff0c\u4ec5\u635f\u8017\u6781\u5c11\u8bb8\u7684\u5185\u5b58\u7a7a\u95f4\u548c\u8c03\u5ea6\u3002\u8fd9\u79cd\u7b49\u5f85\u54cd\u5e94\u7684\u60c5\u51b5\u90fd\u662f\u8eba\u597d\u4e86\uff0c\u7b49\u5f85\u4efb\u52a1\u5524\u9192<\/li>\n<\/ul>\n<\/li>\n
            • Semaphore \u64cd\u4f5c\u590d\u6742\u5ea6\u4f4e\u4e14\u6d41\u8f6c\u7b80\u5355\uff0c\u5bb9\u6613\u63a7\u5236<\/li>\n<\/ul>\n
              \u5f0a<\/h4>\n
                \n
              • \u4e0d\u9002\u5408\u91cf\u5f88\u5927\u3001\u590d\u6742\u5ea6\u9ad8\u7684\u4f7f\u7528\u573a\u666f\n
                  \n
                • \u6709\u51e0\u767e\u4e07\u3001\u51e0\u5343\u4e07\u4e2a goroutine \u7684\u8bdd\uff0c\u5c31\u6d6a\u8d39\u4e86\u5927\u91cf\u8c03\u5ea6 goroutine \u548c\u5185\u5b58\u7a7a\u95f4\u3002\u6070\u597d\u4f60\u7684\u670d\u52a1\u5668\u4e5f\u63a5\u53d7\u4e0d\u4e86\u7684\u8bdd<\/li>\n<\/ul>\n<\/li>\n
                • Semaphore \u64cd\u4f5c\u590d\u6742\u5ea6\u63d0\u9ad8\uff0c\u8981\u7ba1\u7406\u66f4\u591a\u7684\u72b6\u6001<\/li>\n<\/ul>\n
                  \u5c0f\u7ed3<\/h3>\n
                    \n
                  • \u57fa\u4e8e\u4ec0\u4e48\u4e1a\u52a1\u573a\u666f\uff0c\u5c31\u7528\u4ec0\u4e48\u65b9\u6848\u53bb\u505a\u4e8b<\/li>\n
                  • \u6709\u8db3\u591f\u7684\u65f6\u95f4\uff0c\u5141\u8bb8\u4f60\u53bb\u8ffd\u6c42\u66f4\u4f18\u79c0\u3001\u6781\u81f4\u7684\u65b9\u6848\uff08\u7528\u7b2c\u4e09\u65b9\u5e93\u4e5f\u884c\uff09<\/li>\n<\/ul>\n
                    \u7528\u54ea\u79cd\u65b9\u6848\uff0c\u6211\u8ba4\u4e3a\u4e3b\u8981\u57fa\u4e8e\u4ee5\u4e0a\u4e24\u70b9\u53bb\u601d\u8003\uff0c\u90fd\u662f OK \u7684\u3002\u6ca1\u6709\u5bf9\u9519\uff0c\u53ea\u6709\u5f53\u524d\u4e1a\u52a1\u573a\u666f\u80fd\u4e0d\u80fd\u63a5\u53d7\uff0c\u8fd9\u4e2a\u9884\u5148\u542f\u52a8\u7684 goroutine \u6570\u91cf\u4f60\u7684\u7cfb\u7edf\u662f\u5426\u80fd\u591f\u63a5\u53d7<\/p>\n
                    \u5f53\u7136\u4e86\uff0c\u5e38\u89c1\/\u7b80\u5355\u7684 Go \u5e94\u7528\u91c7\u7528\u8fd9\u7c7b\u6280\u672f\u65b9\u6848\uff0c\u57fa\u672c\u5c31\u80fd\u89e3\u51b3\u95ee\u9898\u4e86\u3002\u56e0\u4e3a\u50cf\u672c\u6587\u7b2c\u4e00\u8282 \u201c\u95ee\u9898\u201d \u5982\u6b64\u8d85\u5de8\u5927\u6570\u91cf\u7684\u60c5\u51b5\uff0c\u60c5\u51b5\u5f88\u5c11\u3002\u5176\u5e76\u4e0d\u5b58\u5728\u90a3\u4e9b \u201c\u7279\u6b8a\u6027\u201d\u3002\u56e0\u6b64\u7528\u8fd9\u4e2a\u65b9\u6848\u57fa\u672c OK<\/p>\n
                    \u7075\u6d3b\u63a7\u5236 goroutine \u5e76\u53d1\u6570\u91cf<\/h2>\n
                    \u5c0f\u624b\u4e00\u7d27\u3002\u9694\u58c1\u8001\u738b\u53d1\u73b0\u4e86\u65b0\u7684\u95ee\u9898\u3002\u201c\u65b9\u6848\u4e00\u201d \u4e2d\uff0c\u5728\u8f93\u5165\u8f93\u51fa\u4e00\u4f53\u7684\u60c5\u51b5\u4e0b\uff0c\u5728\u5e38\u89c1\u7684\u4e1a\u52a1\u573a\u666f\u4e2d\u786e\u5b9e\u53ef\u4ee5<\/p>\n
                    \u4f46\uff0c\u8fd9\u6b21\u65b0\u7684\u4e1a\u52a1\u573a\u666f\u6bd4\u8f83\u7279\u6b8a\uff0c\u8981\u63a7\u5236\u8f93\u5165\u7684\u6570\u91cf\uff0c\u4ee5\u6b64\u8fbe\u5230\u6539\u53d8\u5141\u8bb8\u5e76\u53d1\u8fd0\u884c goroutine \u7684\u6570\u91cf\u3002\u6211\u4eec\u4ed4\u7ec6\u60f3\u60f3\uff0c\u8981\u505a\u51fa\u5982\u4e0b\u6539\u53d8\uff1a<\/p>\n
                      \n
                    • \u8f93\u5165\/\u8f93\u51fa\u8981\u62bd\u79bb\uff0c\u624d\u53ef\u4ee5\u5206\u522b\u63a7\u5236<\/li>\n
                    • \u8f93\u5165\/\u8f93\u51fa\u8981\u53ef\u53d8\uff0c\u7406\u6240\u5e94\u5f53\u5728 for-loop \u4e2d\uff08\u53ef\u8bbe\u7f6e\u6570\u503c\u7684\u5730\u65b9\uff09<\/li>\n
                    • \u5141\u8bb8\u6539\u53d8 goroutine \u5e76\u53d1\u6570\u91cf\uff0c\u4f46\u5b83\u4e5f\u5fc5\u987b\u6709\u4e00\u4e2a\u6700\u5927\u503c\uff08\u56e0\u4e3a\u5141\u8bb8\u6539\u53d8\u662f\u76f8\u5bf9\uff09<\/li>\n<\/ul>\n
                      \u65b9\u6848\u4e8c\uff1a\u7075\u6d3b chan + sync<\/h3>\n
                      package main\r\n\r\nimport (\r\n    \"fmt\"\r\n    \"sync\"\r\n    \"time\"\r\n)\r\n\r\nvar wg sync.WaitGroup\r\n\r\nfunc main() {\r\n    userCount := 10\r\n    ch := make(chan int, 5)\r\n    for i := 0; i < userCount; i++ {\r\n        wg.Add(1)\r\n        go func() {\r\n            defer wg.Done()\r\n            for d := range ch {\r\n                fmt.Printf(\"go func: %d, time: %d\\n\", d, time.Now().Unix())\r\n                time.Sleep(time.Second * time.Duration(d))\r\n            }\r\n        }()\r\n    }\r\n\r\n    for i := 0; i < 10; i++ {\r\n        ch <- 1\r\n        ch <- 2\r\n        \/\/time.Sleep(time.Second)\r\n    }\r\n\r\n    close(ch)\r\n    wg.Wait()\r\n}<\/pre>\n
                      \u8f93\u51fa\u7ed3\u679c\uff1a<\/p>\n
                      ...\r\ngo func: 1, time: 1547950567\r\ngo func: 3, time: 1547950567\r\ngo func: 1, time: 1547950567\r\ngo func: 2, time: 1547950567\r\ngo func: 2, time: 1547950567\r\ngo func: 3, time: 1547950567\r\ngo func: 1, time: 1547950568\r\ngo func: 2, time: 1547950568\r\ngo func: 3, time: 1547950568\r\ngo func: 1, time: 1547950568\r\ngo func: 3, time: 1547950569\r\ngo func: 2, time: 1547950569<\/pre>\n
                       <\/p>\n
                      \u5728 \u201c\u65b9\u6848\u4e8c\u201d \u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u968f\u65f6\u968f\u5730\u7684\u6839\u636e\u65b0\u7684\u4e1a\u52a1\u9700\u6c42\uff0c\u505a\u5982\u4e0b\u4e8b\u60c5\uff1a<\/p>\n
                        \n
                      • \u53d8\u66f4 channel \u7684\u8f93\u5165\u6570\u91cf<\/li>\n
                      • \u80fd\u591f\u6839\u636e\u7279\u6b8a\u60c5\u51b5\uff0c\u53d8\u66f4 channel \u7684\u5faa\u73af\u503c<\/li>\n
                      • \u53d8\u66f4\u6700\u5927\u5141\u8bb8\u5e76\u53d1\u7684 goroutine \u6570\u91cf<\/li>\n<\/ul>\n
                        \u603b\u7684\u6765\u8bf4\uff0c\u5c31\u662f\u53ef\u63a7\u7a7a\u95f4\u90fd\u5c3d\u91cf\u653e\u5f00\u4e86\uff0c\u662f\u4e0d\u662f\u66f4\u52a0\u7075\u6d3b\u4e86\u5462 \ud83d\ude42<\/p>\n
                        \u65b9\u6848\u4e09\uff1a\u7b2c\u4e09\u65b9\u5e93<\/h3>\n
                          \n
                        • go-playground\/pool<\/li>\n
                        • nozzle\/throttler<\/li>\n
                        • Jeffail\/tunny<\/li>\n
                        • panjf2000\/ants<\/li>\n<\/ul>\n
                          \u6bd4\u8f83\u6210\u719f\u7684\u7b2c\u4e09\u65b9\u5e93\u4e5f\u4e0d\u5c11\uff0c\u57fa\u672c\u90fd\u662f\u4ee5\u751f\u6210\u548c\u7ba1\u7406 goroutine \u4e3a\u76ee\u6807\u7684\u6c60\u5de5\u5177\u3002\u6211\u7b80\u5355\u5217\u4e86\u51e0\u4e2a\uff0c\u5177\u4f53\u5efa\u8bae\u5927\u5bb6\u9605\u8bfb\u4e0b\u6e90\u7801\u6216\u8005\u591a\u627e\u627e\uff0c\u539f\u7406\u76f8\u4f3c<\/p>\n
                          \u603b\u7ed3<\/h2>\n
                          \u5728\u672c\u6587\u7684\u5f00\u5934\uff0c\u6211\u82b1\u4e86\u5927\u529b\u6c14\uff08\u6781\u7aef\u6570\u91cf\uff09\uff0c\u544a\u8bc9\u4f60\u540c\u65f6\u5e76\u53d1\u8fc7\u591a\u7684 goroutine \u6570\u91cf\u4f1a\u5bfc\u81f4\u7cfb\u7edf\u5360\u7528\u8d44\u6e90\u4e0d\u65ad\u4e0a\u6da8\u3002\u6700\u7ec8\u8be5\u670d\u52a1\u5d29\u76d8\u7684\u6781\u7aef\u60c5\u51b5\u3002\u4e3a\u7684\u662f\u5e0c\u671b\u4f60\u4eca\u540e\u907f\u514d\u8fd9\u79cd\u95ee\u9898\uff0c\u7ed9\u4f60\u7559\u4e0b\u6df1\u523b\u7684\u5370\u8c61<\/p>\n
                          \u63a5\u4e0b\u6765\u6211\u4eec\u4ee5 \u201c\u63a7\u5236 goroutine \u5e76\u53d1\u6570\u91cf\u201d \u4e3a\u4e3b\u9898\uff0c\u5c55\u5f00\u4e86\u4e00\u756a\u5206\u6790\u3002\u5206\u522b\u7ed9\u51fa\u4e86\u4e09\u79cd\u65b9\u6848\u3002\u5728\u6211\u770b\u6765\uff0c\u5404\u5177\u4f18\u7f3a\u70b9\uff0c\u6211\u5efa\u8bae\u4f60\u6311\u9009\u5408\u9002\u81ea\u8eab\u573a\u666f\u7684\u6280\u672f\u65b9\u6848\u5c31\u53ef\u4ee5\u4e86<\/p>\n
                          \u56e0\u4e3a\uff0c\u6709\u4e0d\u540c\u7c7b\u578b\u7684\u6280\u672f\u65b9\u6848\u4e5f\u80fd\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u5343\u4eba\u5343\u9762\u3002\u672c\u6587\u63a8\u8350\u7684\u662f\u8f83\u5e38\u89c1\u7684\u89e3\u51b3\u65b9\u6848\uff0c\u4e5f\u6b22\u8fce\u5927\u5bb6\u5728\u8bc4\u8bba\u533a\u7ee7\u7eed\u8865\u5145 \ud83d\ude42<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"
                          \u95ee\u9898 func main() { use<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"colormag_page_container_layout":"default_layout","colormag_page_sidebar_layout":"default_layout","footnotes":""},"categories":[],"tags":[122],"class_list":["post-2793","post","type-post","status-publish","format-standard","hentry","tag-06-godocker"],"_links":{"self":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/posts\/2793","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/comments?post=2793"}],"version-history":[{"count":0,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/posts\/2793\/revisions"}],"wp:attachment":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/media?parent=2793"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/categories?post=2793"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/tags?post=2793"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}