1 files changed, 135 insertions, 0 deletions
diff --git a/qpid/dotnet/Qpid.Client.Transport.Socket.Blocking/BlockingSocketProcessor.cs b/qpid/dotnet/Qpid.Client.Transport.Socket.Blocking/BlockingSocketProcessor.cs
new file mode 100644
index 0000000000..b62b11a3db
--- /dev/null
+++ b/qpid/dotnet/Qpid.Client.Transport.Socket.Blocking/BlockingSocketProcessor.cs
@@ -0,0 +1,135 @@
+/*
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.
+ *
+ */
+using System;
+using System.Net;
+using System.Net.Sockets;
+using log4net;
+using Apache.Qpid.Buffer;
+using Apache.Qpid.Client.Protocol;
+
+namespace Apache.Qpid.Client.Transport.Socket.Blocking
+{
+    class BlockingSocketProcessor : IConnectionCloser
+    {
+        private static readonly ILog _log = LogManager.GetLogger(typeof(BlockingSocketProcessor));
+
+        string _host;
+        int _port;
+        System.Net.Sockets.Socket _socket;
+        private NetworkStream _networkStream;
+        IByteChannel _byteChannel;
+        IProtocolListener _protocolListener;
+
+        public BlockingSocketProcessor(string host, int port, IProtocolListener protocolListener)
+        {
+            _host = host;
+            _port = port;
+            _protocolListener = protocolListener;
+            _byteChannel = new ByteChannel(this);
+        }
+
+        /// <summary>
+        ///  Synchronous blocking connect.
+        /// </summary>
+        public void Connect()
+        {
+            _socket = new System.Net.Sockets.Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
+
+	    /// For future note TCP Set NoDelay options may help, though with the blocking io not sure
+	    /// The Don't linger may help with detecting disconnect but that hasn't been the case in testing.
+	    /// _socket.SetSocketOption (SocketOptionLevel.Socket, SocketOptionName.NoDelay, 0);
+	    /// _socket.SetSocketOption (SocketOptionLevel.Socket, SocketOptionName.DontLinger, 0);
+	    
+            IPHostEntry ipHostInfo = Dns.Resolve(_host); // Note: don't fix this warning. We do this for .NET 1.1 compatibility.
+            IPAddress ipAddress = ipHostInfo.AddressList[0];
+
+            IPEndPoint ipe = new IPEndPoint(ipAddress, _port);
+
+            _socket.Connect(ipe);            
+            _networkStream = new NetworkStream(_socket, true);
+        }
+        
+        public string getLocalEndPoint()
+        {
+            return _socket.LocalEndPoint.ToString();
+        }
+
+        public void Write(ByteBuffer byteBuffer)
+        {            
+            try
+            {
+                _networkStream.Write(byteBuffer.array(), byteBuffer.position(), byteBuffer.limit()); // FIXME
+            }
+            catch (Exception e)
+            {
+                _log.Error("Write caused exception", e);
+                _protocolListener.OnException(e);
+                // We should provide the error synchronously as we are doing blocking io.
+                throw e;
+            }
+        }
+
+        public ByteBuffer Read()
+        {
+            const int bufferSize = 4 * 1024; // TODO: Prevent constant allocation of buffers.
+            byte[] bytes = new byte[bufferSize];
+            
+            int numOctets = _networkStream.Read(bytes, 0, bytes.Length);
+
+	    /// Read only returns 0 if the socket has been gracefully shutdown.
+	    /// http://msdn2.microsoft.com/en-us/library/system.net.sockets.networkstream.read(VS.71).aspx            
+	    /// We can use this to block Send so the next Read will force an exception forcing failover.
+	    /// Otherwise we need to wait ~20 seconds for the NetworkStream/Socket code to realise that
+	    /// the socket has been closed.
+	    if (numOctets == 0)
+	    {              
+		_socket.Shutdown(SocketShutdown.Send);
+		_socket.Close();
+	    }
+             
+            ByteBuffer byteBuffer = ByteBuffer.wrap(bytes);
+            byteBuffer.limit(numOctets);
+            
+            byteBuffer.flip();
+
+            return byteBuffer;
+        }
+
+        public void Disconnect()
+        {
+            _networkStream.Flush();
+            _networkStream.Close();
+            _socket.Close();
+        }
+
+        public void Close()
+        {
+            Disconnect();
+        }
+
+        public IByteChannel ByteChannel
+        {
+            get { return _byteChannel; }
+        }
+    }
+}
+
+