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

   1 //
   2 // NamedPipeReplyChannel.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.IO;
  31 using System.IO.Pipes;
  32 using System.Net;
  33 using System.Net.Sockets;
  34 using System.ServiceModel;
  35 using System.ServiceModel.Channels.NetTcp;
  36 using System.Text;
  37 using System.Threading;
  38
  39 namespace System.ServiceModel.Channels
  40 {
  41         internal class NamedPipeReplyChannel : InternalReplyChannelBase
  42         {
  43                 NamedPipeServerStream server;
  44                 TcpBinaryFrameManager frame;
  45
  46                 public NamedPipeReplyChannel (ChannelListenerBase listener, MessageEncoder encoder, NamedPipeServerStream server)
  47                         : base (listener)
  48                 {
  49                         this.server = server;
  50                         this.Encoder = encoder;
  51                 }
  52
  53                 public MessageEncoder Encoder { get; private set; }
  54
  55                 public override RequestContext ReceiveRequest (TimeSpan timeout)
  56                 {
  57                         // It is used while it is already closed.
  58                         if (server == null || !server.IsConnected)
  59                                 return null;
  60
  61                         if (timeout <= TimeSpan.Zero)
  62                                 throw new ArgumentException (String.Format ("Timeout value must be positive value. It was {0}", timeout));
  63                         var msg = frame.ReadUnsizedMessage (timeout);
  64                         frame.ReadEndRecord ();
  65                         return new NamedPipeRequestContext (this, msg);
  66                 }
  67
  68                 class NamedPipeRequestContext : InternalRequestContext
  69                 {
  70                         public NamedPipeRequestContext (NamedPipeReplyChannel owner, Message request)
  71                                 : base (owner.Manager)
  72                         {
  73                                 this.owner = owner;
  74                                 this.request = request;
  75                         }
  76
  77                         NamedPipeReplyChannel owner;
  78                         Message request;
  79
  80                         public override Message RequestMessage {
  81                                 get { return request; }
  82                         }
  83
  84                         public override void Abort ()
  85                         {
  86                                 Close (TimeSpan.Zero);
  87                         }
  88
  89                         public override void Close (TimeSpan timeout)
  90                         {
  91                         }
  92
  93                         public override void Reply (Message message, TimeSpan timeout)
  94                         {
  95                                 if (message.Headers.RelatesTo == null)
  96                                         message.Headers.RelatesTo = request.Headers.MessageId;
  97
  98                                 owner.frame.WriteUnsizedMessage (message, timeout);
  99                                 owner.frame.WriteEndRecord ();
 100                                 owner.server.Close ();
 101                                 owner.server = null;
 102                         }
 103                 }
 104
 105                 public override bool TryReceiveRequest (TimeSpan timeout, out RequestContext context)
 106                 {
 107                         try {
 108                                 context = ReceiveRequest (timeout);
 109                                 return context != null;
 110                         } catch (TimeoutException) {
 111                                 context = null;
 112                                 return false;
 113                         }
 114                 }
 115
 116                 public override bool WaitForRequest (TimeSpan timeout)
 117                 {
 118                         throw new NotImplementedException ();
 119                 }
 120
 121                 protected override void OnClose (TimeSpan timeout)
 122                 {
 123                 }
 124
 125                 protected override void OnOpen (TimeSpan timeout)
 126                 {
 127                         // FIXME: use timeout
 128                         frame = new TcpBinaryFrameManager (TcpBinaryFrameManager.SingletonUnsizedMode, server, true) { Encoder = this.Encoder };
 129                         frame.ProcessPreambleRecipient ();
 130                         frame.ProcessPreambleAckRecipient ();
 131                 }
 132         }
 133 }