qol change

ws/registry.go

@@ -79,22 +79,6 @@ func (r *Registry) RegisterMod(channelID, serverID string, conn *websocket.Conn)
 	// caller should use FlushChannelWithSender to perform actual sends
 }
 
-// UnregisterMod : remove mod for a channel
-func (r *Registry) UnregisterMod(channelID string) {
-	r.mu.RLock()
-	e := r.entries[channelID]
-	r.mu.RUnlock()
-	if e == nil {
-		return
-	}
-	e.mu.Lock()
-	defer e.mu.Unlock()
-	if e.Mod != nil && e.Mod.Conn != nil {
-		_ = e.Mod.Conn.Close()
-	}
-	e.Mod = nil
-}
-
 // RegisterBot : single connection for bot. after registration call FlushAllToBotWithSender
 func (r *Registry) RegisterBot(conn *websocket.Conn) {
 	r.botMu.Lock()
@@ -105,13 +89,45 @@ func (r *Registry) RegisterBot(conn *websocket.Conn) {
 	r.botMu.Unlock()
 }
 
+func (r *Registry) UnregisterMod(channelID string) {
+	r.mu.RLock()
+	e := r.entries[channelID]
+	r.mu.RUnlock()
+	if e == nil {
+		return
+	}
+
+	e.mu.Lock()
+	modConn := e.Mod
+	e.Mod = nil
+	e.mu.Unlock()
+
+	if modConn != nil && modConn.Conn != nil {
+		_ = modConn.Conn.SetWriteDeadline(time.Now().Add(time.Second))
+		_ = modConn.Conn.WriteControl(
+			websocket.CloseMessage,
+			websocket.FormatCloseMessage(websocket.CloseNormalClosure, "Disconnecting."),
+			time.Now().Add(time.Second),
+		)
+		_ = modConn.Conn.Close()
+	}
+}
+
 func (r *Registry) UnregisterBot() {
 	r.botMu.Lock()
-	if r.bot != nil && r.bot.Conn != nil {
-		_ = r.bot.Conn.Close()
-	}
+	botConn := r.bot
 	r.bot = nil
 	r.botMu.Unlock()
+
+	if botConn != nil && botConn.Conn != nil {
+		_ = botConn.Conn.SetWriteDeadline(time.Now().Add(time.Second))
+		_ = botConn.Conn.WriteControl(
+			websocket.CloseMessage,
+			websocket.FormatCloseMessage(websocket.CloseNormalClosure, "Disconnecting."),
+			time.Now().Add(time.Second),
+		)
+		_ = botConn.Conn.Close()
+	}
 }
 
 func (r *Registry) Send(channelID string, out GatewayMessageOut, sendOverConn func(*websocket.Conn, GatewayMessageOut) error) (delivered bool, queued bool, err error) {

ws/util.go

@@ -126,22 +126,13 @@ func (wsg *WebsocketGateway) registerConn(conn *websocket.Conn, typ, channelId,
 	return true
 }
 
-func (wsg *WebsocketGateway) unregisterConn(conn *websocket.Conn, typ, channelId string) {
+func (wsg *WebsocketGateway) unregisterConn(typ, channelId string) {
 	if typ == "bot" {
 		wsg.registry.UnregisterBot()
-		if conn != nil {
-			_ = conn.WriteControl(websocket.CloseMessage, websocket.FormatCloseMessage(websocket.CloseNormalClosure, "Disconnecting."), time.Now().Add(time.Second))
-			_ = conn.Close()
-		}
 		return
 	}
 
 	wsg.registry.UnregisterMod(channelId)
-
-	if conn != nil {
-		_ = conn.WriteControl(websocket.CloseMessage, websocket.FormatCloseMessage(websocket.CloseNormalClosure, "Disconnecting."), time.Now().Add(time.Second))
-		_ = conn.Close()
-	}
 }
 
 func (wsg *WebsocketGateway) closeAll() {
@@ -150,24 +141,14 @@ func (wsg *WebsocketGateway) closeAll() {
 	wsg.registry.UnregisterBot()
 
 	wsg.registry.mu.RLock()
-	entries := make([]*ChannelEntry, 0, len(wsg.registry.entries))
-	for _, e := range wsg.registry.entries {
-		entries = append(entries, e)
+	channelIDs := make([]string, 0, len(wsg.registry.entries))
+	for channelID := range wsg.registry.entries {
+		channelIDs = append(channelIDs, channelID)
 	}
 	wsg.registry.mu.RUnlock()
 
-	for _, e := range entries {
-		e.mu.Lock()
-		modConn := e.Mod
-		if modConn != nil {
-			e.Mod = nil
-		}
-		e.mu.Unlock()
-
-		if modConn != nil && modConn.Conn != nil {
-			_ = modConn.Conn.WriteControl(websocket.CloseMessage, websocket.FormatCloseMessage(websocket.CloseNormalClosure, "Shutting down."), time.Now().Add(time.Second))
-			_ = modConn.Conn.Close()
-		}
+	for _, channelID := range channelIDs {
+		wsg.registry.UnregisterMod(channelID)
 	}
 }
 

ws/websocket.go

@@ -182,7 +182,7 @@ func (wsg *WebsocketGateway) Serve(ctx context.Context, listenAddr string) error
 
 func (wsg *WebsocketGateway) read(conn *websocket.Conn, _type, channelId string) {
 	defer func() {
-		wsg.unregisterConn(conn, _type, channelId)
+		wsg.unregisterConn(_type, channelId)
 		wsg.logger.Info("Client disconnected.", "remote", conn.RemoteAddr().String())
 	}()