Tweak PooledSocket.ConnectAsync

Author: cnblogs-dudu

Enyim.Caching/Memcached/PooledSocket.cs

@@ -95,14 +95,19 @@ public async Task ConnectAsync()
             bool success = false;
 
             var connTask = _socket.ConnectAsync(_endpoint);
+
             if (await Task.WhenAny(connTask, Task.Delay(_connectionTimeout)) == connTask)
             {
                 await connTask;
             }
-            else if (_socket != null)
+            else
             {
-                _socket.Dispose();
-                _socket = null;
+                if (_socket != null)
+                {
+                    _socket.Dispose();
+                    _socket = null;
+                }
+                throw new TimeoutException($"Timeout to connect to {_endpoint}.");
             }
 
             if (_socket != null)
@@ -424,21 +429,21 @@ public async Task WriteAsync(IList<ArraySegment<byte>> buffers)
 #region [ License information          ]
 
 /* ************************************************************
- * 
+ *
  *    Copyright (c) 2010 Attila Kisk? enyim.com
- *    
+ *
  *    Licensed under the Apache License, Version 2.0 (the "License");
  *    you may not use this file except in compliance with the License.
  *    You may obtain a copy of the License at
- *    
+ *
  *        http://www.apache.org/licenses/LICENSE-2.0
- *    
+ *
  *    Unless required by applicable law or agreed to in writing, software
  *    distributed under the License is distributed on an "AS IS" BASIS,
  *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  *    See the License for the specific language governing permissions and
  *    limitations under the License.
- *    
+ *
  * ************************************************************/
 
 #endregion