종료시 콜백 호출

wshandler/wshandler.go

@@ -605,6 +605,12 @@ func upgrade_core(sh *subhandler, conn *websocket.Conn, accid primitive.ObjectID
 				sh.callReceiver.OnClientMessageReceived(c.sender, BinaryMessage, r)
 			}
 		}
+		if c.sender.disconnectedCallbacks != nil {
+			for _, f := range c.sender.disconnectedCallbacks {
+				f()
+			}
+		}
+
 		sh.redisSync.Del(context.Background(), accid.Hex())
 		sh.connWaitGroup.Done()