Closure On change of state

daemons/node/stream/service.go

@@ -41,7 +41,7 @@ type StreamService struct {
 	Node         common.DiscoveryPeer
 	Streams      common.ProtocolStream
 	maxNodesConn int
-	mu           sync.Mutex
+	Mu           sync.Mutex
 	// Stream       map[protocol.ID]map[pp.ID]*daemons.Stream
 }
 
@@ -67,8 +67,8 @@ func (s *StreamService) HandlePartnerHeartbeat(stream network.Stream) {
 	if err != nil {
 		return
 	}
-	s.mu.Lock()
-	defer s.mu.Unlock()
+	s.Mu.Lock()
+	defer s.Mu.Unlock()
 
 	if s.Streams[ProtocolHeartbeatPartner] == nil {
 		s.Streams[ProtocolHeartbeatPartner] = map[pp.ID]*common.Stream{}
@@ -197,8 +197,8 @@ func (s *StreamService) StartGC(interval time.Duration) {
 }
 
 func (s *StreamService) gc() {
-	s.mu.Lock()
-	defer s.mu.Unlock()
+	s.Mu.Lock()
+	defer s.Mu.Unlock()
 	now := time.Now().UTC()
 
 	if s.Streams[ProtocolHeartbeatPartner] == nil {