mcs/class/System.ServiceModel/System.ServiceModel.Channels/NamedPipeChannelListener.cs

   1 //
   2 // NamedPipeChannelListener.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
  29 using System;
  30 using System.Collections.Generic;
  31 using System.IO;
  32 using System.IO.Pipes;
  33 using System.Net;
  34 using System.Net.Sockets;
  35 using System.ServiceModel.Description;
  36 using System.Text;
  37 using System.Threading;
  38 using System.Xml;
  39
  40 namespace System.ServiceModel.Channels
  41 {
  42         internal class NamedPipeChannelListener<TChannel> : InternalChannelListenerBase<TChannel>
  43                 where TChannel : class, IChannel
  44         {
  45                 NamedPipeTransportBindingElement source;
  46                 MessageEncoder encoder = null;
  47                 XmlDictionaryReaderQuotas quotas = null;
  48                 BindingContext context;
  49
  50                 public NamedPipeChannelListener (NamedPipeTransportBindingElement source, BindingContext context)
  51                         : base (context)
  52                 {
  53                         foreach (BindingElement be in context.RemainingBindingElements) {
  54                                 MessageEncodingBindingElement mbe = be as MessageEncodingBindingElement;
  55                                 if (mbe != null) {
  56                                         encoder = CreateEncoder<TChannel> (mbe);
  57                                         quotas = mbe.GetProperty<XmlDictionaryReaderQuotas> (context);
  58                                         break;
  59                                 }
  60                         }
  61
  62                         if (encoder == null)
  63                                 encoder = new BinaryMessageEncoder ();
  64                 }
  65
  66                 NamedPipeServerStream active_server;
  67                 AutoResetEvent server_release_handle = new AutoResetEvent (false);
  68
  69                 protected override TChannel OnAcceptChannel (TimeSpan timeout)
  70                 {
  71 Console.WriteLine ("NamedPipeChannelListener.OnAcceptChannel");
  72
  73                         DateTime start = DateTime.Now;
  74                         if (active_server != null) {
  75                                 try {
  76                                         server_release_handle.WaitOne (timeout);
  77                                 } catch (TimeoutException) {
  78                                         return null;
  79                                 }
  80                         }
  81 Console.WriteLine ("NamedPipeChannelListener.OnAcceptChannel.2");
  82
  83                         var server = new NamedPipeServerStream (Uri.LocalPath.Substring (1).Replace ('/', '\\'), PipeDirection.InOut);
  84                         active_server = server;
  85
  86 Console.WriteLine ("NamedPipeChannelListener.OnAcceptChannel.3");
  87                         Action a = delegate {
  88                                 server.WaitForConnection ();
  89                         };
  90                         IAsyncResult r = a.BeginInvoke (null, null);
  91                         try {
  92                                 r.AsyncWaitHandle.WaitOne (timeout);
  93                         } catch (TimeoutException) {
  94                                 server.Close ();
  95                                 return null;
  96                         }
  97
  98                         // FIXME: support IDuplexSessionChannel
  99                         TChannel ch;
 100                         if (typeof (TChannel) == typeof (IDuplexSessionChannel))
 101                                 throw new NotImplementedException ();
 102                         else if (typeof (TChannel) == typeof (IReplyChannel))
 103                                 ch = (TChannel) (object) new NamedPipeReplyChannel (this, encoder, server);
 104                         else
 105                                 throw new InvalidOperationException (String.Format ("Channel type {0} is not supported.", typeof (TChannel).Name));
 106
 107                         ((CommunicationObject) (object) ch).Closed += delegate {
 108                                 active_server = null;
 109                                 server_release_handle.Set ();
 110                         };
 111                         return ch;
 112                 }
 113
 114                 [MonoTODO]
 115                 protected override bool OnWaitForChannel (TimeSpan timeout)
 116                 {
 117                         throw new NotImplementedException ();
 118                 }
 119
 120                 // CommunicationObject
 121
 122                 protected override void OnAbort ()
 123                 {
 124                 }
 125
 126                 protected override void OnClose (TimeSpan timeout)
 127                 {
 128                 }
 129
 130                 protected override void OnOpen (TimeSpan timeout)
 131                 {
 132                         if (!Uri.IsLoopback)
 133                                 throw new NotSupportedException ("Only local namde pipes are supported in this binding");
 134                 }
 135         }
 136 }