class/System.ServiceModel/System.ServiceModel.Channels/PeerChannelListener.cs

   1 //
   2 // PeerChannelListener.cs
   3 //
   4 // Author:
   5 //      Atsushi Enomoto <atsushi@ximian.com>
   6 //
   7 // Copyright (C) 2009 Novell, Inc.  http://www.novell.com
   8 //
   9 // Permission is hereby granted, free of charge, to any person obtaining
  10 // a copy of this software and associated documentation files (the
  11 // "Software"), to deal in the Software without restriction, including
  12 // without limitation the rights to use, copy, modify, merge, publish,
  13 // distribute, sublicense, and/or sell copies of the Software, and to
  14 // permit persons to whom the Software is furnished to do so, subject to
  15 // the following conditions:
  16 //
  17 // The above copyright notice and this permission notice shall be
  18 // included in all copies or substantial portions of the Software.
  19 //
  20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  27 //
  28 using System;
  29 using System.Collections.Generic;
  30 using System.Collections.ObjectModel;
  31 using System.Net;
  32 using System.Net.Security;
  33 using System.ServiceModel;
  34 using System.ServiceModel.Description;
  35 using System.ServiceModel.Security;
  36 using System.Text;
  37 using System.Threading;
  38
  39 namespace System.ServiceModel.Channels
  40 {
  41         internal class PeerChannelListener<TChannel> : InternalChannelListenerBase<TChannel>, IPeerChannelManager
  42                 where TChannel : class, IChannel
  43         {
  44                 PeerTransportBindingElement source;
  45                 BindingContext context;
  46                 TChannel channel;
  47                 AutoResetEvent accept_handle = new AutoResetEvent (false);
  48
  49                 public PeerChannelListener (PeerTransportBindingElement source,
  50                         BindingContext context)
  51                         : base (context)
  52                 {
  53                         this.source = source;
  54                         foreach (BindingElement be in context.Binding.Elements) {
  55                                 MessageEncodingBindingElement mbe = be as MessageEncodingBindingElement;
  56                                 if (mbe != null) {
  57                                         MessageEncoder = CreateEncoder<TChannel> (mbe);
  58                                         break;
  59                                 }
  60                         }
  61                         if (MessageEncoder == null)
  62                                 MessageEncoder = new BinaryMessageEncoder ();
  63                 }
  64
  65                 public PeerResolver Resolver { get; set; }
  66
  67                 public PeerTransportBindingElement Source {
  68                         get { return source; }
  69                 }
  70
  71                 protected override TChannel OnAcceptChannel (TimeSpan timeout)
  72                 {
  73                         DateTime start = DateTime.Now;
  74                         if (channel != null)
  75                                 if (!accept_handle.WaitOne (timeout))
  76                                         throw new TimeoutException ();
  77                         channel = PopulateChannel (timeout - (DateTime.Now - start));
  78                         ((CommunicationObject) (object) channel).Closed += delegate {
  79                                 this.channel = null;
  80                                 accept_handle.Set ();
  81                                 };
  82                         return channel;
  83                 }
  84
  85                 TChannel PopulateChannel (TimeSpan timeout)
  86                 {
  87                         if (typeof (TChannel) == typeof (IInputChannel))
  88                                 return (TChannel) (object) new PeerDuplexChannel (this);
  89                         // FIXME: handle timeout somehow.
  90                         if (typeof (TChannel) == typeof (IDuplexChannel))
  91                                 return (TChannel) (object) new PeerDuplexChannel (this);
  92
  93                         throw new InvalidOperationException (String.Format ("Not supported channel '{0}' (mono bug; it is incorrectly allowed at construction time)", typeof (TChannel)));
  94                 }
  95
  96                 protected override bool OnWaitForChannel (TimeSpan timeout)
  97                 {
  98                         throw new NotImplementedException ();
  99                 }
 100
 101                 protected override void OnOpen (TimeSpan timeout)
 102                 {
 103                 }
 104
 105                 protected override void OnClose (TimeSpan timeout)
 106                 {
 107                         if (channel != null)
 108                                 channel.Close (timeout);
 109                 }
 110
 111                 protected override void OnAbort ()
 112                 {
 113                         if (channel != null)
 114                                 channel.Abort ();
 115                 }
 116         }
 117 }