{"id":207745,"date":"2025-07-08T12:38:09","date_gmt":"2025-07-08T04:38:09","guid":{"rendered":"https:\/\/server.hk\/cnblog\/207745\/"},"modified":"2025-07-08T12:38:09","modified_gmt":"2025-07-08T04:38:09","slug":"%e5%85%b3%e9%97%ad%e7%bb%93%e6%9e%84%e5%86%85%e9%83%a8%e7%9a%84%e9%80%9a%e9%81%93","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/207745\/","title":{"rendered":"\u5173\u95ed\u7ed3\u6784\u5185\u90e8\u7684\u901a\u9053"},"content":{"rendered":"

<\/b> <\/p>\n

\u5f53\u524d\u4f4d\u7f6e\uff1a ><\/span> ><\/span> ><\/span> ><\/span> \u5173\u95ed\u7ed3\u6784\u5185\u90e8\u7684\u901a\u9053<\/span><\/p>\n

\u6765\u6e90\uff1astackoverflow<\/span>
\n2024-04-25 11:36:29<\/span>
\n<\/i>0\u6d4f\u89c8<\/span>
\n<\/i>\u6536\u85cf<\/span> <\/p>\n

\u600e\u4e48\u5165\u95e8Golang\u7f16\u7a0b\uff1f\u9700\u8981\u5b66\u4e60\u54ea\u4e9b\u77e5\u8bc6\u70b9\uff1f\u8fd9\u662f\u65b0\u624b\u4eec\u521a\u63a5\u89e6\u7f16\u7a0b\u65f6\u5e38\u89c1\u7684\u95ee\u9898\uff1b\u4e0b\u9762\u5c31\u6765\u7ed9\u5927\u5bb6\u6574\u7406\u5206\u4eab\u4e00\u4e9b\u77e5\u8bc6\u70b9\uff0c\u5e0c\u671b\u80fd\u591f\u7ed9\u521d\u5b66\u8005\u4e00\u4e9b\u5e2e\u52a9\u3002\u672c\u7bc7\u6587\u7ae0\u5c31\u6765\u4ecb\u7ecd\u300a\u5173\u95ed\u7ed3\u6784\u5185\u90e8\u7684\u901a\u9053\u300b\uff0c\u6d89\u53ca\u5230\uff0c\u6709\u9700\u8981\u7684\u53ef\u4ee5\u6536\u85cf\u4e00\u4e0b<\/p>\n

\u95ee\u9898\u5185\u5bb9
\n <\/p>\n

\u6211\u4e00\u76f4\u5728\u5c1d\u8bd5\u67e5\u770b\u6709\u5173\u5173\u95ed\u9891\u9053\u7684\u73b0\u6709\u5e16\u5b50\uff0c\u4f46\u6211\u4f3c\u4e4e\u65e0\u6cd5\u51c6\u786e\u627e\u5230\u6211\u6b63\u5728\u5bfb\u627e\u7684\u5185\u5bb9\u3002\u6211\u7684\u7ed3\u6784\u5185\u90e8\u6709\u4e24\u4e2a\u901a\u9053\u3002\u521b\u5efa\u901a\u9053\u540e\uff0c\u6211\u5c1d\u8bd5\u7acb\u5373\u8fd0\u884c defer close(channelname)<\/code> \uff0c\u4f46\u901a\u9053\u7acb\u5373\u5173\u95ed\uff0c\u5e76\u4e14\u51fa\u73b0\u9519\u8bef\u3002\u5982\u679c\u6211\u4e0d\u5904\u7406\u5173\u95ed\u901a\u9053\uff0c\u4ee3\u7801\u8fd0\u884c\u6b63\u5e38\uff0c\u4f46\u4e0d\u4f1a\u6b63\u5e38\u5173\u95ed\uff0c\u6211\u5fc5\u987b\u4f7f\u7528 ctrl z \u6682\u505c\u7a0b\u5e8f\uff0c\u56e0\u4e3a\u5b83\u5728\u4f7f\u7528 ctrl c \u540e\u4ecd\u5728\u8fd0\u884c\u3002\u4ee5\u4e0b\u662f\u4ee3\u7801\u7684\u91cd\u8981\u90e8\u5206\uff1a<\/p>\n

type WebsocketClient struct {\n    pubSocket  ws_client.Socket\n    privSocket ws_client.Socket\n    pubChan    chan interface{}\n    privChan   chan interface{}\n}\n\ntype KrakenClient struct {\n    WebSocket WebsocketClient\n    Testing   bool\n}\n\nfunc (client *KrakenClient) initChannels() {\n    client.WebSocket.pubChan = make(chan interface{})\n    client.WebSocket.privChan = make(chan interface{})\n\n    \/\/defer close(client.WebSocket.pubChan)\n    \/\/defer close(client.WebSocket.privChan)\n}\n\nfunc (client *KrakenClient) InitWebSocketClient(wg *sync.WaitGroup, testing bool) {\n    client.initTesting(testing)\n    client.initChannels()\n    client.startWebSocketConnection(wg)\n}\n\nfunc (client *KrakenClient) PubDecoder(wg *sync.WaitGroup, ctx context.Context) {\n    wg.Add(1)\n    defer wg.Done()\n    defer client.WebSocket.pubSocket.Close()\n\n    if err := PubSocketGuard(client.WebSocket); err != nil { \/\/ guard clause checker. makes sure i'm actually using a public WebSocket\n        panic(err)\n    }\n\n    var res interface{}\n\n    ws_client.ReceiveLocker(&client.WebSocket.pubSocket)\n    client.WebSocket.pubSocket.OnTextMessage = func(message string, socket ws_client.Socket) {\n        res = ws_client.PubJsonDecoder(message, client.Testing)\n        client.WebSocket.pubChan <- res\n    }\n    ws_client.ReceiveUnlocker(&client.WebSocket.pubSocket)\n\n    <-ctx.Done()\n    log.Println(\"closing public socket\")\n    return\n}\n\nfunc (client *KrakenClient) PubListen(wg *sync.WaitGroup, ctx context.Context, ohlcMap *types.OHLCVals) {\n    wg.Add(1)\n    defer wg.Done()\n\n    for c := range client.WebSocket.pubChan {\n        switch v := c.(type) {\n        \/\/ More code here. Not important to the channel problem\n    }\n    <-ctx.Done()\n}\n\nfunc main() {\n    var testing bool = true\n\n    comms := make(chan os.Signal, 1)\n    signal.Notify(comms, os.Interrupt, syscall.SIGTERM)\n    ctx := context.Background()\n    ctx, cancel := context.WithCancel(ctx)\n    var wg sync.WaitGroup\n\n    kraken := &kraken_client.KrakenClient{}\n    kraken.InitWebSocketClient(&wg, testing)\n    go kraken.PubDecoder(&wg, ctx)\n    kraken.SubscribeToOHLC(&wg, []string{\"BTC\/USD\"}, 5)\n\n    ohlcMap := types.OHLCVals{}\n\n    go kraken.PubListen(&wg, ctx, &ohlcMap)\n\n    <-comms\n    cancel()\n    wg.Wait()\n\n}<\/pre>\n
\u603b\u4e4b\uff0cstruct krakenclient<\/code> \u6709\u4e00\u4e2a\u7c7b\u578b websocketclient<\/code>\uff0c\u5b83\u62e5\u6709 2 \u4e2a websocket \u548c 2 \u4e2a\u901a\u9053\u3002\u5728 krakenclient<\/code> \u7ed3\u6784\u4e0a\u8c03\u7528 initwebsocketclient<\/code> \u51fd\u6570\u4f1a\u521b\u5efa\u4e24\u4e2a\u901a\u9053\u5e76\u8fde\u63a5\u5230 ws \u670d\u52a1\u5668\u3002\u8fde\u63a5\u5230\u670d\u52a1\u5668\u540e\uff0c\u6211\u5f00\u59cb\u89e3\u7ec4\u6240\u6709\u54cd\u5e94\u5e76\u5c06\u8fd9\u4e9b\u54cd\u5e94\u53d1\u9001\u5230\u901a\u9053\u3002\u7136\u540e\uff0c\u6211\u8ba2\u9605\u7279\u5b9a\u7aef\u70b9\uff0c\u5e76\u5f00\u59cb\u201c\u76d1\u542c\u201d\u54cd\u5e94\uff08\u5b9e\u9645\u4e0a\u662f\u904d\u5386\u6570\u636e\u5e76\u5c06\u5176\u6dfb\u52a0\u5230\u6839\u636e\u7279\u5b9a\u60c5\u51b5\u4f20\u9012\u7ed9\u76d1\u542c\u51fd\u6570\u7684 ohlcmap \u53d8\u91cf\u4e2d\uff09\u3002\u6211\u53ea\u662f\u4e0d\u660e\u767d\u5e94\u8be5\u5728\u54ea\u91cc\u5173\u95ed\u9891\u9053\u3002\u6211\u662f\u5426\u9700\u8981\u5728 krakenclient<\/code> \u7ed3\u6784\u4e0a\u521b\u5efa\u4e00\u4e2a clos\u200b\u200be<\/code> \u51fd\u6570\uff0c\u8be5\u51fd\u6570\u4f1a\u5728\u901a\u9053\u5173\u95ed\u65f6\u5ef6\u8fdf\uff1f\u5982\u679c\u662f\u8fd9\u6837\uff0c\u5b83\u4f1a\u53bb\u54ea\u91cc\uff1f\u611f\u8c22\u4efb\u4f55\u5e2e\u52a9\uff01<\/p>\n
 <\/p>\n
\u6b63\u786e\u7b54\u6848<\/h2>\n
 <\/p>\n
\u60a8\u5fc5\u987b\u5728 main \u51fd\u6570\u4e2d\u8c03\u7528 defer\uff0c\u56e0\u4e3a\u5f53\u60a8\u5728 initchannels \u51fd\u6570\u4e2d\u8c03\u7528 defer \u65f6\uff0c\u5b83\u4f1a\u5728\u521b\u5efa\u540e\u7acb\u5373\u5173\u95ed\u60a8\u7684\u901a\u9053\u3002 \u5ef6\u8fdf\u59cb\u7ec8\u5728\u51fd\u6570\uff08\u4ee3\u7801\u4e2d\u7684 initchannels\uff09\u8fd4\u56de\u65f6\u6267\u884c\u3002<\/p>\n
\u60a8\u53ef\u4ee5\u7f16\u5199\u4e00\u4e2a\u5173\u95ed\u51fd\u6570\u6765\u5173\u95ed\u901a\u9053\u5e76\u5728\u4e3b\u51fd\u6570\u4e0a\u8c03\u7528\u5b83\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n
func (client *KrakenClient) closeChannels() {\n    close(client.WebSocket.pubChan)\n    close(client.WebSocket.privChan)\n}\n\nfunc (client *KrakenClient) initChannels() {\n    client.WebSocket.pubChan = make(chan interface{})\n    client.WebSocket.privChan = make(chan interface{})\n}\n\nfunc main() {\n    ...\n    kraken.InitWebSocketClient(&wg, testing)\n    defer kraken.closeChannels()\n    ...\n}<\/pre>\n
\u5230\u8fd9\u91cc\uff0c\u6211\u4eec\u4e5f\u5c31\u8bb2\u5b8c\u4e86\u300a\u5173\u95ed\u7ed3\u6784\u5185\u90e8\u7684\u901a\u9053\u300b\u7684\u5185\u5bb9\u4e86\u3002\u4e2a\u4eba\u8ba4\u4e3a\uff0c\u57fa\u7840\u77e5\u8bc6\u7684\u5b66\u4e60\u548c\u5de9\u56fa\uff0c\u662f\u4e3a\u4e86\u66f4\u597d\u7684\u5c06\u5176\u8fd0\u7528\u5230\u9879\u76ee\u4e2d\uff0c\u6b22\u8fce\u5173\u6ce8\u516c\u4f17\u53f7\uff0c\u5e26\u4f60\u4e86\u89e3\u66f4\u591a\u5173\u4e8e\u7684\u77e5\u8bc6\u70b9\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5f53\u524d\u4f4d\u7f6e\uff1a > > ...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-207745","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207745","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=207745"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207745\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=207745"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=207745"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=207745"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}