프로세스 종료 안되는 문제 수정

wshandler/wshandler.go

@@ -52,6 +52,7 @@ type commandType string
 const (
 	commandType_EnterRoom     = commandType("enter_room")
 	commandType_LeaveRoom     = commandType("leave_room")
+	ForceShutdownCloseMessage = "force_shutdown"
 )
 
 type commandMessage struct {
@@ -302,6 +303,7 @@ func (ws *WebsocketHandler) mainLoop(ctx context.Context) {
 				logger.Println(r)
 			}
 		}()
+		c.closeMessage = ForceShutdownCloseMessage
 		ws.ClientDisconnected(c)
 		c.Close()
 	}
@@ -495,6 +497,11 @@ func upgrade_core(ws *WebsocketHandler, conn *websocket.Conn, accid primitive.Ob
 
 	ws.connWaitGroup.Add(1)
 	go func(c *wsconn, accid primitive.ObjectID, deliveryChan chan<- any) {
+		defer func() {
+			recover()
+			ws.connWaitGroup.Done()
+		}()
+
 		for {
 			messageType, r, err := c.NextReader()
 			if err != nil {
@@ -519,10 +526,10 @@ func upgrade_core(ws *WebsocketHandler, conn *websocket.Conn, accid primitive.Ob
 				ws.Call(newconn.sender, string(cmd), r)
 			}
 		}
-		ws.connWaitGroup.Done()
-
 		c.Conn = nil
+		if c.closeMessage != ForceShutdownCloseMessage {
 			ws.connInOutChan <- c
+		}
 	}(newconn, accid, ws.deliveryChan)
 }