update

proxy/proxy.go

@@ -50,17 +50,16 @@ type Session struct {
 
 	// Stratum
 	sync.Mutex
-	conn           net.Conn
-	login          string
-	worker         string
-	stratum        int
-	subscriptionID string
-	JobDeatils     jobDetails
-	Extranonce     string
-	ExtranonceSub  bool
-	JobDetails     jobDetails
-	staleJobs      map[string]staleJob
-	staleJobIDs    []string
+	conn          net.Conn
+	login         string
+	worker        string
+	stratum       int
+	JobDeatils    jobDetails
+	Extranonce    string
+	ExtranonceSub bool
+	JobDetails    jobDetails
+	staleJobs     map[string]staleJob
+	staleJobIDs   []string
 }
 
 type jobDetails struct {
@@ -73,7 +72,7 @@ type jobDetails struct {
 
 func NewProxy(cfg *Config, backend *storage.RedisClient) *ProxyServer {
 	if len(cfg.Name) == 0 {
-		log.Fatal("You must set instance name")
+		log.Fatal("You must set the instance name")
 	}
 	policy := policy.Start(&cfg.Proxy.Policy, backend)
 
@@ -108,61 +107,49 @@ func NewProxy(cfg *Config, backend *storage.RedisClient) *ProxyServer {
 	stateUpdateTimer := time.NewTimer(stateUpdateIntv)
 
 	go func() {
-		for {
-			select {
-			case <-refreshTimer.C:
-				proxy.fetchBlockTemplate()
-				refreshTimer.Reset(refreshIntv)
-			}
+		for range refreshTimer.C {
+			proxy.fetchBlockTemplate()
 		}
 	}()
 
 	go func() {
-		for {
-			select {
-			case <-checkTimer.C:
-				proxy.checkUpstreams()
-				checkTimer.Reset(checkIntv)
-			}
+		for range checkTimer.C {
+			proxy.checkUpstreams()
 		}
 	}()
 
 	go func() {
-		for {
-			select {
-			case <-stateUpdateTimer.C:
-				t := proxy.currentBlockTemplate()
-				if t != nil {
-					rpc := proxy.rpc()
-					// get the latest block height
-					height := int64(t.Height) - 1
-					block, _ := rpc.GetBlockByHeight(height)
-					timestamp, _ := strconv.ParseInt(strings.Replace(block.Timestamp, "0x", "", -1), 16, 64)
-					prev := height - 100
-					if prev < 0 {
-						prev = 0
-					}
-					n := height - prev
-					if n > 0 {
-						prevblock, err := rpc.GetBlockByHeight(prev)
-						if err != nil || prevblock == nil {
-							log.Fatalf("Error while retrieving block from node: %v", err)
+		for range stateUpdateTimer.C {
+			t := proxy.currentBlockTemplate()
+			if t != nil {
+				rpc := proxy.rpc()
+				// get the latest block height
+				height := int64(t.Height) - 1
+				block, _ := rpc.GetBlockByHeight(height)
+				timestamp, _ := strconv.ParseInt(strings.Replace(block.Timestamp, "0x", "", -1), 16, 64)
+				prev := height - 100
+				if prev < 0 {
+					prev = 0
+				}
+				n := height - prev
+				if n > 0 {
+					prevblock, err := rpc.GetBlockByHeight(prev)
+					if err != nil || prevblock == nil {
+						log.Fatalf("Error while retrieving block from the 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)
+							proxy.markSick()
 						} 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 backend: %v", err)
-								proxy.markSick()
-							} else {
-								proxy.markOk()
-							}
+							proxy.markOk()
 						}
-					} else {
-						proxy.markSick()
 					}
+				} else {
+					proxy.markSick()
 				}
-				stateUpdateTimer.Reset(stateUpdateIntv)
 			}
 		}
 	}()