not show log by default

server.go

@@ -41,6 +41,7 @@ type ServerCommon struct {
 	maxHeartbeatLostSeconds    int64
 	sequenceDe                 func([]byte) (interface{}, error)
 	sequenceEn                 func(interface{}) ([]byte, error)
+	showError                  bool
 }
 
 func NewServer() Server {
@@ -64,6 +65,11 @@ func NewServer() Server {
 	}
 	return &server
 }
+func (s *ServerCommon) ShowError(std bool) {
+	s.mu.Lock()
+	s.showError = std
+	s.mu.Unlock()
+}
 
 func (s *ServerCommon) Stop() error {
 	if !s.alive.Load().(bool) {
@@ -184,7 +190,9 @@ func (s *ServerCommon) acceptTU() {
 		}
 		conn, err := s.listener.Accept()
 		if err != nil {
-			fmt.Println("error accept:", err)
+			if s.showError {
+				fmt.Println("error accept:", err)
+			}
 			continue
 		}
 		var id string
@@ -274,7 +282,9 @@ func (s *ServerCommon) loadMessage() {
 				//fmt.Println("received:", float64(time.Now().UnixNano()-nowd)/1000000)
 				msg, err := s.sequenceDe(cc.msgDe(cc.SecretKey, data.Msg))
 				if err != nil {
-					fmt.Println("server decode data error", err)
+					if s.showError {
+						fmt.Println("server decode data error", err)
+					}
 					return
 				}
 				//fmt.Println("decoded:", float64(time.Now().UnixNano()-nowd)/1000000)
@@ -405,6 +415,8 @@ func (s *ServerCommon) sendWait(c *ClientConn, msg TransferMsg, timeout time.Dur
 		close(data.Reply)
 		s.noFinSyncMsgPool.Delete(data.TransferMsg.ID)
 		return Message{}, os.ErrDeadlineExceeded
+	case <-s.stopCtx.Done():
+		return Message{}, errors.New("Service shutdown")
 	case msg, ok := <-data.Reply:
 		if !ok {
 			return msg, os.ErrInvalid
@@ -434,6 +446,8 @@ func (s *ServerCommon) sendCtx(c *ClientConn, msg TransferMsg, ctx context.Conte
 		close(data.Reply)
 		s.noFinSyncMsgPool.Delete(data.TransferMsg.ID)
 		return Message{}, os.ErrClosed
+	case <-s.stopCtx.Done():
+		return Message{}, errors.New("Service shutdown")
 	case msg, ok := <-data.Reply:
 		if !ok {
 			return msg, os.ErrInvalid