mcs/class/corlib/System.Runtime.Remoting.Messaging/ServerObjectTerminatorSink.cs

   1 //
   2 // System.Runtime.Remoting.ServerObjectTerminatorSink.cs
   3 //
   4 // Author: Lluis Sanchez Gual (lsg@ctv.es)
   5 //
   6 // (C) 2002, Lluis Sanchez Gual
   7 //
   8
   9 //
  10 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
  11 //
  12 // Permission is hereby granted, free of charge, to any person obtaining
  13 // a copy of this software and associated documentation files (the
  14 // "Software"), to deal in the Software without restriction, including
  15 // without limitation the rights to use, copy, modify, merge, publish,
  16 // distribute, sublicense, and/or sell copies of the Software, and to
  17 // permit persons to whom the Software is furnished to do so, subject to
  18 // the following conditions:
  19 //
  20 // The above copyright notice and this permission notice shall be
  21 // included in all copies or substantial portions of the Software.
  22 //
  23 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  27 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  28 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  29 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  30 //
  31
  32 using System;
  33
  34 namespace System.Runtime.Remoting.Messaging
  35 {
  36         // The final sink of the Server Object Sink Chain.
  37         // It invokes object dynamic sinks and forwards the message
  38         // to the StackBuilderSink
  39
  40         internal class ServerObjectTerminatorSink: IMessageSink
  41         {
  42                 IMessageSink _nextSink;
  43
  44                 public ServerObjectTerminatorSink(IMessageSink nextSink)
  45                 {
  46                         _nextSink = nextSink;
  47                 }
  48
  49                 public IMessage SyncProcessMessage (IMessage msg)
  50                 {
  51                         ServerIdentity identity = (ServerIdentity) RemotingServices.GetMessageTargetIdentity (msg);
  52                         identity.NotifyServerDynamicSinks (true, msg, false, false);
  53                         IMessage res = _nextSink.SyncProcessMessage (msg);
  54                         identity.NotifyServerDynamicSinks (false, msg, false, false);
  55                         return res;
  56                 }
  57
  58                 public IMessageCtrl AsyncProcessMessage (IMessage msg, IMessageSink replySink)
  59                 {
  60                         ServerIdentity identity = (ServerIdentity) RemotingServices.GetMessageTargetIdentity (msg);
  61                         if (identity.HasServerDynamicSinks)
  62                         {
  63                                 identity.NotifyServerDynamicSinks (true, msg, false, true);
  64                                 if (replySink != null) replySink = new ServerObjectReplySink(identity, replySink);
  65                         }
  66
  67                         IMessageCtrl res = _nextSink.AsyncProcessMessage (msg, replySink);
  68
  69                         if (replySink == null)
  70                                 identity.NotifyServerDynamicSinks (false, msg, true, true);
  71
  72                         return res;
  73                 }
  74
  75                 public IMessageSink NextSink
  76                 {
  77                         get { return _nextSink; }
  78                 }
  79         }
  80
  81         class ServerObjectReplySink: IMessageSink
  82         {
  83                 IMessageSink _replySink;
  84                 ServerIdentity _identity;
  85
  86                 public ServerObjectReplySink (ServerIdentity identity, IMessageSink replySink)
  87                 {
  88                         _replySink = replySink;
  89                         _identity = identity;
  90                 }
  91
  92                 public IMessage SyncProcessMessage (IMessage msg)
  93                 {
  94                         _identity.NotifyServerDynamicSinks (false, msg, true, true);
  95                         return _replySink.SyncProcessMessage (msg);
  96                 }
  97
  98                 public IMessageCtrl AsyncProcessMessage (IMessage msg, IMessageSink replySink)
  99                 {
 100                         throw new NotSupportedException ();
 101                 }
 102
 103                 public IMessageSink NextSink
 104                 {
 105                         get { return _replySink; }
 106                 }
 107         }
 108 }