fix: fixing memory leak on client

v1/client/client.go

@@ -16,8 +16,9 @@ import (
 )
 
 const (
-	pingPeriod   = 10 * time.Second
-	readDeadline = 30 * time.Second
+	pingPeriod    = 10 * time.Second
+	readDeadline  = 30 * time.Second
+	writeDeadline = 10 * time.Second
 )
 
 type MessageType uint
@@ -182,17 +183,14 @@ func (wsClient *SafeWebsocketClient) connect() error {
 		Scheme: scheme,
 		Host:   fmt.Sprintf("%s:%d", wsClient.baseHost, wsClient.basePort),
 	}
-
 	if wsClient.path != nil && strings.TrimSpace(*wsClient.path) != "" {
 		newURL.Path = *wsClient.path
 	}
-
 	if wsClient.rawQuery != nil && strings.TrimSpace(*wsClient.rawQuery) != "" {
 		newURL.RawQuery = *wsClient.rawQuery
 	}
 
 	header := make(http.Header)
-
 	if wsClient.headers != nil {
 		for k, v := range *wsClient.headers {
 			header.Set(k, v)
@@ -205,18 +203,22 @@ func (wsClient *SafeWebsocketClient) connect() error {
 	}
 
 	pingCtx, pingCancel := context.WithCancel(context.Background())
+	pumpCtx, pumpCancel := context.WithCancel(context.Background())
+
 	wsClient.mu.WriteHandler(func() error {
-		wsClient.cancelFuncs = append(wsClient.cancelFuncs, pingCancel)
+		if wsClient.conn != nil {
+			wsClient.conn.Close()
+		}
+
+		wsClient.conn = conn
+
+		wsClient.cancelFuncs = append(wsClient.cancelFuncs, pingCancel, pumpCancel)
 		return nil
 	})
 
 	go wsClient.startPingTicker(pingCtx)
-
-	if wsClient.conn != nil {
-		wsClient.conn.Close()
-	}
-	wsClient.conn = conn
-	wsClient.isConnected = true
+	go wsClient.writePump(pumpCtx, conn)
+	go wsClient.readPump(pumpCtx, conn)
 
 	conn.SetPingHandler(func(pingData string) error {
 		if err := conn.SetReadDeadline(time.Now().Add(readDeadline)); err != nil {
@@ -239,24 +241,72 @@ func (wsClient *SafeWebsocketClient) connect() error {
 		return nil
 	})
 
-	go wsClient.writePump()
-	go wsClient.readPump()
-
+	wsClient.isConnected = true
 	return nil
 }
 
-func (wsClient *SafeWebsocketClient) writePump() {
-	ctx, cancel := context.WithCancel(context.Background())
-	wsClient.mu.WriteHandler(func() error {
-		wsClient.cancelFuncs = append(wsClient.cancelFuncs, cancel)
-		return nil
-	})
+func (wsClient *SafeWebsocketClient) reconnectHandler() {
+	backoff := 1 * time.Second
+	maxBackoff := 15 * time.Second
 
-	var c *websocket.Conn
-	wsClient.mu.ReadHandler(func() error {
-		c = wsClient.conn
-		return nil
-	})
+	for {
+		select {
+		case <-wsClient.reconnectCh:
+			log.Println("Reconnect triggered")
+
+			wsClient.mu.WriteHandler(func() error {
+				if wsClient.cancelFuncs != nil {
+					for _, cancel := range wsClient.cancelFuncs {
+						cancel()
+					}
+					wsClient.cancelFuncs = nil
+				}
+				return nil
+			})
+
+			wsClient.isConnected = false
+			isInnerLoop := true
+			for isInnerLoop {
+				log.Printf("Attempting reconnect in %v...", backoff)
+				select {
+				case <-time.After(backoff):
+					if err := wsClient.connect(); err != nil {
+						log.Printf("Reconnect failed: %v", err)
+						if backoff < maxBackoff {
+							backoff *= 2
+						}
+						continue
+					}
+					log.Println("Reconnected successfully")
+					backoff = 1 * time.Second
+					isInnerLoop = false
+					continue
+				case <-wsClient.ctx.Done():
+					log.Println("reconnect handler stopped due to client shutdown")
+					wsClient.Close()
+					return
+				}
+			}
+			if wsClient.reconnectChans != nil {
+				for _, reconnectCh := range wsClient.reconnectChans {
+					select {
+					case reconnectCh <- struct{}{}:
+					default: // prevent blocking if chan is full
+					}
+				}
+			}
+		case <-wsClient.ctx.Done():
+			log.Println("reconnect handler stopped due to client shutdown")
+			wsClient.Close()
+			return
+		}
+	}
+}
+
+func (wsClient *SafeWebsocketClient) writePump(ctx context.Context, c *websocket.Conn) {
+	defer func() {
+		c.Close()
+	}()
 
 	for {
 		select {
@@ -264,30 +314,25 @@ func (wsClient *SafeWebsocketClient) writePump() {
 			log.Println("Writer canceled by context")
 			return
 		case data := <-wsClient.writeChan:
-			if c == nil {
+			if err := c.SetWriteDeadline(time.Now().Add(writeDeadline)); err != nil {
+				log.Printf("error setting write deadline: %v", err)
 				return
 			}
 
 			if err := c.WriteMessage(int(data.MessageType), data.Data); err != nil {
 				log.Printf("error on write message: %v\n", err)
+				wsClient.triggerReconnect() // Trigger reconnect on write failure
 				return
 			}
 		}
 	}
 }
 
-func (wsClient *SafeWebsocketClient) readPump() {
-	ctx, cancel := context.WithCancel(context.Background())
-	wsClient.mu.WriteHandler(func() error {
-		wsClient.cancelFuncs = append(wsClient.cancelFuncs, cancel)
-		return nil
-	})
-
-	var c *websocket.Conn
-	wsClient.mu.ReadHandler(func() error {
-		c = wsClient.conn
-		return nil
-	})
+func (wsClient *SafeWebsocketClient) readPump(ctx context.Context, c *websocket.Conn) {
+	defer func() {
+		wsClient.triggerReconnect()
+		c.Close()
+	}()
 
 	for {
 		select {
@@ -295,19 +340,14 @@ func (wsClient *SafeWebsocketClient) readPump() {
 			log.Println("Reader canceled by context")
 			return
 		default:
-			if c == nil {
-				return
-			}
-
+			// Set read deadline
 			if err := c.SetReadDeadline(time.Now().Add(readDeadline)); err != nil {
-				log.Printf("error on read deadline: %v\n", err)
 				return
 			}
 
 			messageType, data, err := c.ReadMessage()
 			if err != nil {
 				log.Printf("error on read message: %v\n", err)
-				wsClient.triggerReconnect()
 				return
 			}
 
@@ -353,60 +393,6 @@ func (wsClient *SafeWebsocketClient) triggerReconnect() {
 	}
 }
 
-func (wsClient *SafeWebsocketClient) reconnectHandler() {
-	backoff := 1 * time.Second
-	maxBackoff := 30 * time.Second
-	for {
-		select {
-		case <-wsClient.reconnectCh:
-			log.Println("Reconnect triggered")
-
-			wsClient.mu.ReadHandler(func() error {
-				if wsClient.cancelFuncs != nil {
-					for _, cancel := range wsClient.cancelFuncs {
-						cancel()
-					}
-				}
-				return nil
-			})
-
-			wsClient.isConnected = false
-
-			isInnerLoop := true
-			for isInnerLoop {
-				log.Printf("Attempting reconnect in %v...", backoff)
-				select {
-				case <-time.After(backoff):
-					if err := wsClient.connect(); err != nil {
-						log.Printf("Reconnect failed: %v", err)
-						if backoff < maxBackoff {
-							backoff *= 2
-						}
-						continue
-					}
-					log.Println("Reconnected successfully")
-					backoff = 1 * time.Second
-					isInnerLoop = false
-					continue
-				case <-wsClient.ctx.Done():
-					log.Println("reconnect handler stopped due to client shutdown")
-					wsClient.Close()
-					return
-				}
-			}
-			if wsClient.reconnectChans != nil {
-				for _, reconnectCh := range wsClient.reconnectChans {
-					reconnectCh <- struct{}{}
-				}
-			}
-		case <-wsClient.ctx.Done():
-			log.Println("reconnect handler stopped due to client shutdown")
-			wsClient.Close()
-			return
-		}
-	}
-}
-
 func (wsClient *SafeWebsocketClient) ReconnectChannel() <-chan struct{} {
 	reconnectCh := make(chan struct{}, 1)
 	wsClient.mu.WriteHandler(func() error {