Clear QpServer's Channels when stop.

Author: aaasoft

Quick.Protocol.WebSocket.Server.AspNetCore/WebSocketServerStream.cs

@@ -12,9 +12,7 @@ internal class WebSocketServerStream : Stream
     {
         private System.Net.WebSockets.WebSocket webSocket;
         private CancellationToken cancellationToken;
-        private const int ReadSize = 1024 * 4;
-        private byte[] readBuffer = new byte[ReadSize];
-
+        
         public WebSocketServerStream(System.Net.WebSockets.WebSocket webSocket, CancellationToken cancellationToken)
         {
             this.webSocket = webSocket;

Quick.Protocol/QpServer.cs

@@ -116,6 +116,11 @@ public virtual void Stop()
         {
             cts?.Cancel();
             cts = null;
+            lock (channelList)
+            {
+                channelList.Clear();
+                Channels = channelList.ToArray();
+            }
         }
     }
 }