fix error

fix error

proxy/proxy.go

@@ -54,6 +54,7 @@ type Session struct {
 	login          string
 	worker         string
 	stratum        int
+	subscriptionID string
 	JobDeatils     jobDetails
 	Extranonce     string
 	ExtranonceSub  bool
@@ -72,7 +73,7 @@ type jobDetails struct {
 
 func NewProxy(cfg *Config, backend *storage.RedisClient) *ProxyServer {
 	if len(cfg.Name) == 0 {
-		log.Fatal("You must set the instance name")
+		log.Fatal("You must set instance name")
 	}
 	policy := policy.Start(&cfg.Proxy.Policy, backend)
 
@@ -107,19 +108,29 @@ func NewProxy(cfg *Config, backend *storage.RedisClient) *ProxyServer {
 	stateUpdateTimer := time.NewTimer(stateUpdateIntv)
 
 	go func() {
-		for range refreshTimer.C {
+		for {
+			select {
+			case <-refreshTimer.C:
 				proxy.fetchBlockTemplate()
+				refreshTimer.Reset(refreshIntv)
+			}
 		}
 	}()
 
 	go func() {
-		for range checkTimer.C {
+		for {
+			select {
+			case <-checkTimer.C:
 				proxy.checkUpstreams()
+				checkTimer.Reset(checkIntv)
+			}
 		}
 	}()
 
 	go func() {
-		for range stateUpdateTimer.C {
+		for {
+			select {
+			case <-stateUpdateTimer.C:
 				t := proxy.currentBlockTemplate()
 				if t != nil {
 					rpc := proxy.rpc()
@@ -135,13 +146,13 @@ func NewProxy(cfg *Config, backend *storage.RedisClient) *ProxyServer {
 					if n > 0 {
 						prevblock, err := rpc.GetBlockByHeight(prev)
 						if err != nil || prevblock == nil {
-						log.Fatalf("Error while retrieving block from the node: %v", err)
+							log.Fatalf("Error while retrieving block from node: %v", err)
 						} else {
 							prevtime, _ := strconv.ParseInt(strings.Replace(prevblock.Timestamp, "0x", "", -1), 16, 64)
 							blocktime := float64(timestamp-prevtime) / float64(n)
 							err = backend.WriteNodeState(cfg.Name, t.Height, t.Difficulty, blocktime)
 							if err != nil {
-							log.Printf("Failed to write node state to the backend: %v", err)
+								log.Printf("Failed to write node state to backend: %v", err)
 								proxy.markSick()
 							} else {
 								proxy.markOk()
@@ -151,6 +162,8 @@ func NewProxy(cfg *Config, backend *storage.RedisClient) *ProxyServer {
 						proxy.markSick()
 					}
 				}
+				stateUpdateTimer.Reset(stateUpdateIntv)
+			}
 		}
 	}()