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

   1 //
   2 // ReplyChannelBase.cs
   3 //
   4 // Author:
   5 //      Atsushi Enomoto <atsushi@ximian.com>
   6 //
   7 // Copyright (C) 2006 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.Net;
  32 using System.Net.Security;
  33 using System.ServiceModel;
  34 using System.ServiceModel.Description;
  35 using System.ServiceModel.Security;
  36 using System.Threading;
  37
  38 namespace System.ServiceModel.Channels
  39 {
  40         internal abstract class InternalReplyChannelBase : ReplyChannelBase
  41         {
  42                 public InternalReplyChannelBase (ChannelListenerBase listener)
  43                         : base (listener)
  44                 {
  45                         local_address = new EndpointAddress (listener.Uri);
  46                 }
  47
  48                 EndpointAddress local_address;
  49
  50                 public override EndpointAddress LocalAddress {
  51                         get { return local_address; }
  52                 }
  53         }
  54
  55         internal abstract class ReplyChannelBase : ChannelBase, IReplyChannel
  56         {
  57                 public ReplyChannelBase (ChannelListenerBase listener)
  58                         : base (listener)
  59                 {
  60                 }
  61
  62                 ChannelListenerBase listener;
  63
  64                 public abstract EndpointAddress LocalAddress { get; }
  65
  66                 public override T GetProperty<T> ()
  67                 {
  68                         if (typeof (T) == typeof (IChannelListener))
  69                                 return (T) (object) listener;
  70                         return base.GetProperty<T> ();
  71                 }
  72
  73                 protected override void OnAbort ()
  74                 {
  75                         OnClose (TimeSpan.Zero);
  76                 }
  77
  78                 protected override void OnClose (TimeSpan timeout)
  79                 {
  80                         if (CurrentAsyncThread != null)
  81                                 if (!CancelAsync (timeout))
  82                                         CurrentAsyncThread.Abort ();
  83                 }
  84
  85                 public virtual bool CancelAsync (TimeSpan timeout)
  86                 {
  87                         // FIXME: It should wait for the actual completion.
  88                         return CurrentAsyncResult == null;
  89                         //return CurrentAsyncResult == null || CurrentAsyncResult.AsyncWaitHandle.WaitOne (timeout);
  90                 }
  91
  92                 public virtual bool TryReceiveRequest ()
  93                 {
  94                         RequestContext dummy;
  95                         return TryReceiveRequest (DefaultReceiveTimeout, out dummy);
  96                 }
  97
  98                 public abstract bool TryReceiveRequest (TimeSpan timeout, out RequestContext context);
  99
 100                 delegate bool TryReceiveDelegate (TimeSpan timeout, out RequestContext context);
 101                 TryReceiveDelegate try_recv_delegate;
 102
 103                 protected Thread CurrentAsyncThread { get; private set; }
 104                 protected IAsyncResult CurrentAsyncResult { get; private set; }
 105
 106                 public virtual IAsyncResult BeginTryReceiveRequest (TimeSpan timeout, AsyncCallback callback, object state)
 107                 {
 108                         if (CurrentAsyncResult != null)
 109                                 throw new InvalidOperationException ("Another async TryReceiveRequest operation is in progress");
 110                         if (try_recv_delegate == null)
 111                                 try_recv_delegate = new TryReceiveDelegate (delegate (TimeSpan tout, out RequestContext ctx) {
 112                                         if (CurrentAsyncResult != null)
 113                                                 CurrentAsyncThread = Thread.CurrentThread;
 114                                         try {
 115                                                 return TryReceiveRequest (tout, out ctx);
 116                                         } finally {
 117                                                 CurrentAsyncResult = null;
 118                                                 CurrentAsyncThread = null;
 119                                         }
 120                                         });
 121                         RequestContext dummy;
 122                         CurrentAsyncResult = try_recv_delegate.BeginInvoke (timeout, out dummy, callback, state);
 123                         return CurrentAsyncResult;
 124                 }
 125
 126                 public virtual bool EndTryReceiveRequest (IAsyncResult result)
 127                 {
 128                         RequestContext dummy;
 129                         return EndTryReceiveRequest (result, out dummy);
 130                 }
 131
 132                 public virtual bool EndTryReceiveRequest (IAsyncResult result, out RequestContext context)
 133                 {
 134                         if (try_recv_delegate == null)
 135                                 throw new InvalidOperationException ("BeginTryReceiveRequest operation has not started");
 136                         return try_recv_delegate.EndInvoke (out context, result);
 137                 }
 138
 139                 public virtual bool WaitForRequest ()
 140                 {
 141                         return WaitForRequest (DefaultReceiveTimeout);
 142                 }
 143
 144                 public abstract bool WaitForRequest (TimeSpan timeout);
 145
 146                 Func<TimeSpan,bool> wait_delegate;
 147
 148                 public virtual IAsyncResult BeginWaitForRequest (TimeSpan timeout, AsyncCallback callback, object state)
 149                 {
 150                         if (wait_delegate == null)
 151                                 wait_delegate = new Func<TimeSpan,bool> (WaitForRequest);
 152                         return wait_delegate.BeginInvoke (timeout, callback, state);
 153                 }
 154
 155                 public virtual bool EndWaitForRequest (IAsyncResult result)
 156                 {
 157                         if (wait_delegate == null)
 158                                 throw new InvalidOperationException ("BeginWaitForRequest operation has not started");
 159                         return wait_delegate.EndInvoke (result);
 160                 }
 161
 162                 public virtual RequestContext ReceiveRequest ()
 163                 {
 164                         return ReceiveRequest (DefaultReceiveTimeout);
 165                 }
 166
 167                 public abstract RequestContext ReceiveRequest (TimeSpan timeout);
 168
 169                 public virtual IAsyncResult BeginReceiveRequest (AsyncCallback callback, object state)
 170                 {
 171                         return BeginReceiveRequest (DefaultReceiveTimeout, callback, state);
 172                 }
 173
 174                 Func<TimeSpan,RequestContext> recv_delegate;
 175                 public virtual IAsyncResult BeginReceiveRequest (TimeSpan timeout, AsyncCallback callback, object state)
 176                 {
 177                         if (recv_delegate == null)
 178                                 recv_delegate = new Func<TimeSpan,RequestContext> (ReceiveRequest);
 179                         return recv_delegate.BeginInvoke (timeout, callback, state);
 180                 }
 181
 182                 public virtual RequestContext EndReceiveRequest (IAsyncResult result)
 183                 {
 184                         if (recv_delegate == null)
 185                                 throw new InvalidOperationException ("BeginReceiveRequest operation has not started");
 186                         return recv_delegate.EndInvoke (result);
 187                 }
 188
 189                 Action<TimeSpan> open_delegate, close_delegate;
 190
 191                 protected override IAsyncResult OnBeginOpen (TimeSpan timeout,
 192                         AsyncCallback callback, object state)
 193                 {
 194                         if (open_delegate == null)
 195                                 open_delegate = new Action<TimeSpan> (OnOpen);
 196                         return open_delegate.BeginInvoke (timeout, callback, state);
 197                 }
 198
 199                 protected override void OnEndOpen (IAsyncResult result)
 200                 {
 201                         if (open_delegate == null)
 202                                 throw new InvalidOperationException ("async open operation has not started");
 203                         open_delegate.EndInvoke (result);
 204                 }
 205
 206                 protected override IAsyncResult OnBeginClose (TimeSpan timeout,
 207                         AsyncCallback callback, object state)
 208                 {
 209                         if (close_delegate == null)
 210                                 close_delegate = new Action<TimeSpan> (OnClose);
 211                         return close_delegate.BeginInvoke (timeout, callback, state);
 212                 }
 213
 214                 protected override void OnEndClose (IAsyncResult result)
 215                 {
 216                         if (close_delegate == null)
 217                                 throw new InvalidOperationException ("async close operation has not started");
 218                         close_delegate.EndInvoke (result);
 219                 }
 220         }
 221 }