113 lines
3.5 KiB
C#
113 lines
3.5 KiB
C#
//
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// TcpRequestChannel.cs
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//
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// Author:
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// Atsushi Enomoto <atsushi@ximian.com>
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//
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// Copyright (C) 2009 Novell, Inc. http://www.novell.com
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Net;
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using System.Net.Sockets;
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using System.ServiceModel;
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using System.ServiceModel.Description;
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using System.Threading;
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using System.Xml;
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namespace System.ServiceModel.Channels.NetTcp
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{
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internal class TcpRequestChannel : RequestChannelBase
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{
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TcpChannelInfo info;
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TcpClient client;
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TcpBinaryFrameManager frame;
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public TcpRequestChannel (ChannelFactoryBase factory, TcpChannelInfo info, EndpointAddress address, Uri via)
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: base (factory, address, via)
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{
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this.info = info;
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}
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public MessageEncoder Encoder {
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get { return info.MessageEncoder; }
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}
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protected override void OnAbort ()
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{
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OnClose (TimeSpan.Zero);
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}
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protected override void OnClose (TimeSpan timeout)
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{
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if (client != null)
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client.Close ();
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}
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protected override void OnOpen (TimeSpan timeout)
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{
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CreateClient (timeout);
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}
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void CreateClient (TimeSpan timeout)
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{
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int explicitPort = Via.Port;
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client = new TcpClient (Via.Host, explicitPort <= 0 ? TcpTransportBindingElement.DefaultPort : explicitPort);
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NetworkStream ns = client.GetStream ();
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frame = new TcpBinaryFrameManager (TcpBinaryFrameManager.SingletonUnsizedMode, ns, false) {
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Encoder = this.Encoder,
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Via = this.Via };
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}
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public override Message Request (Message input, TimeSpan timeout)
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{
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DateTime start = DateTime.UtcNow;
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// FIXME: use timeouts.
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frame.ProcessPreambleInitiator ();
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frame.ProcessPreambleAckInitiator ();
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if (input.Headers.To == null)
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input.Headers.To = RemoteAddress.Uri;
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if (input.Headers.MessageId == null)
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input.Headers.MessageId = new UniqueId ();
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Logger.LogMessage (MessageLogSourceKind.TransportSend, ref input, int.MaxValue); // It is not a receive buffer
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frame.WriteUnsizedMessage (input, timeout - (DateTime.UtcNow - start));
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// LAMESPEC: it contradicts the protocol described at section 3.1.1.1.1 in [MC-NMF].
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// Moving this WriteEndRecord() after ReadUnsizedMessage() causes TCP connection blocking.
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frame.WriteEndRecord ();
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var ret = frame.ReadUnsizedMessage (timeout - (DateTime.UtcNow - start));
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Logger.LogMessage (MessageLogSourceKind.TransportReceive, ref ret, info.BindingElement.MaxReceivedMessageSize);
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frame.ReadEndRecord (); // both
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return ret;
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}
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}
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}
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