refactor: update method receivers to value type for cleanup and connection methods; enhance context usage for task client operations

core/grpc/server/task_service_server.go

@@ -370,7 +370,7 @@ func (svr TaskServiceServer) GetSubscribeStream(taskId primitive.ObjectID) (stre
 }
 
 // cleanupStaleStreams periodically checks for and removes stale streams
-func (svr *TaskServiceServer) cleanupStaleStreams() {
+func (svr TaskServiceServer) cleanupStaleStreams() {
 	ticker := time.NewTicker(10 * time.Minute) // Check every 10 minutes
 	defer ticker.Stop()
 
@@ -386,7 +386,7 @@ func (svr *TaskServiceServer) cleanupStaleStreams() {
 }
 
 // performStreamCleanup checks each stream and removes those that are no longer active
-func (svr *TaskServiceServer) performStreamCleanup() {
+func (svr TaskServiceServer) performStreamCleanup() {
 	taskServiceMutex.Lock()
 	defer taskServiceMutex.Unlock()
 
@@ -462,7 +462,7 @@ func newTaskServiceServer() *TaskServiceServer {
 }
 
 // Stop gracefully shuts down the task service server
-func (svr *TaskServiceServer) Stop() error {
+func (svr TaskServiceServer) Stop() error {
 	svr.Infof("stopping task service server...")
 
 	// Cancel cleanup routine

core/node/service/worker_service.go

@@ -162,7 +162,10 @@ func (svc *WorkerService) subscribe() {
 				svc.Errorf("failed to get node client: %v", err)
 				return err
 			}
-			stream, err := nodeClient.Subscribe(context.Background(), &grpc.NodeServiceSubscribeRequest{
+			// Use client context for proper cancellation
+			ctx, cancel := client.GetGrpcClient().Context()
+			defer cancel()
+			stream, err := nodeClient.Subscribe(ctx, &grpc.NodeServiceSubscribeRequest{
 				NodeKey: svc.cfgSvc.GetNodeKey(),
 			})
 			if err != nil {

core/task/handler/runner.go

@@ -123,6 +123,7 @@ type Runner struct {
 	cancel context.CancelFunc // function to cancel the context
 	done   chan struct{}      // channel to signal completion
 	wg     sync.WaitGroup     // wait group for goroutine synchronization
+
 	// connection management for robust task execution
 	connMutex         sync.RWMutex  // mutex for connection access
 	connHealthTicker  *time.Ticker  // ticker for connection health checks
@@ -533,7 +534,7 @@ func (r *Runner) initConnection() (err error) {
 		r.Errorf("failed to get task client: %v", err)
 		return err
 	}
-	r.conn, err = taskClient.Connect(context.Background())
+	r.conn, err = taskClient.Connect(r.ctx)
 	if err != nil {
 		r.Errorf("error connecting to task service: %v", err)
 		return err
@@ -657,7 +658,7 @@ func (r *Runner) reconnectWithRetry() error {
 			r.Warnf("reconnection attempt %d failed to get task client: %v", attempt+1, err)
 			continue
 		}
-		conn, err := taskClient.Connect(context.Background())
+		conn, err := taskClient.Connect(r.ctx)
 		if err != nil {
 			r.Warnf("reconnection attempt %d failed: %v", attempt+1, err)
 			continue
@@ -730,7 +731,9 @@ func (r *Runner) sendNotification() {
 		r.Errorf("failed to get task client: %v", err)
 		return
 	}
-	_, err = taskClient.SendNotification(context.Background(), req)
+	ctx, cancel := context.WithTimeout(r.ctx, 10*time.Second)
+	defer cancel()
+	_, err = taskClient.SendNotification(ctx, req)
 	if err != nil {
 		r.Errorf("error sending notification: %v", err)
 		return