mcs/class/System.ServiceModel/System.ServiceModel.Channels/ChannelListenerBase_1.cs

   1 //
   2 // ChannelListenerBase.cs
   3 //
   4 // Author: Atsushi Enomoto (atsushi@ximian.com)
   5 //
   6 // Copyright (C) 2005 Novell, Inc (http://www.novell.com)
   7 //
   8 // Permission is hereby granted, free of charge, to any person obtaining
   9 // a copy of this software and associated documentation files (the
  10 // "Software"), to deal in the Software without restriction, including
  11 // without limitation the rights to use, copy, modify, merge, publish,
  12 // distribute, sublicense, and/or sell copies of the Software, and to
  13 // permit persons to whom the Software is furnished to do so, subject to
  14 // the following conditions:
  15 //
  16 // The above copyright notice and this permission notice shall be
  17 // included in all copies or substantial portions of the Software.
  18 //
  19 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  20 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  21 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  22 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  23 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  24 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  25 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  26 //
  27 using System;
  28 using System.Collections.Generic;
  29 using System.ServiceModel;
  30
  31 namespace System.ServiceModel.Channels
  32 {
  33         internal abstract class InternalChannelListenerBase<TChannel>
  34                 : ChannelListenerBase<TChannel>
  35                 where TChannel : class, IChannel
  36         {
  37                 protected InternalChannelListenerBase ()
  38                         : base ()
  39                 {
  40                 }
  41
  42                 protected InternalChannelListenerBase (IDefaultCommunicationTimeouts timeouts)
  43                         : base (timeouts)
  44                 {
  45                 }
  46
  47                 Func<TimeSpan,TChannel> accept_channel_delegate;
  48                 Func<TimeSpan,bool> wait_delegate;
  49                 Action<TimeSpan> open_delegate, close_delegate;
  50
  51                 protected override IAsyncResult OnBeginAcceptChannel (
  52                         TimeSpan timeout, AsyncCallback callback,
  53                         object asyncState)
  54                 {
  55                         if (accept_channel_delegate == null)
  56                                 accept_channel_delegate = new Func<TimeSpan,TChannel> (OnAcceptChannel);
  57                         return accept_channel_delegate.BeginInvoke (timeout, callback, asyncState);
  58                 }
  59
  60                 protected override TChannel OnEndAcceptChannel (IAsyncResult result)
  61                 {
  62                         if (accept_channel_delegate == null)
  63                                 throw new InvalidOperationException ("Async AcceptChannel operation has not started");
  64                         return accept_channel_delegate.EndInvoke (result);
  65                 }
  66
  67                 protected override IAsyncResult OnBeginWaitForChannel (
  68                         TimeSpan timeout, AsyncCallback callback, object state)
  69                 {
  70                         if (wait_delegate == null)
  71                                 wait_delegate = new Func<TimeSpan,bool> (OnWaitForChannel);
  72                         return wait_delegate.BeginInvoke (timeout, callback, state);
  73                 }
  74
  75                 protected override bool OnEndWaitForChannel (IAsyncResult result)
  76                 {
  77                         if (wait_delegate == null)
  78                                 throw new InvalidOperationException ("Async WaitForChannel operation has not started");
  79                         return wait_delegate.EndInvoke (result);
  80                 }
  81
  82                 protected override IAsyncResult OnBeginOpen (TimeSpan timeout,
  83                         AsyncCallback callback, object state)
  84                 {
  85                         if (open_delegate == null)
  86                                 open_delegate = new Action<TimeSpan> (OnOpen);
  87                         return open_delegate.BeginInvoke (timeout, callback, state);
  88                 }
  89
  90                 protected override void OnEndOpen (IAsyncResult result)
  91                 {
  92                         if (open_delegate == null)
  93                                 throw new InvalidOperationException ("Async Open operation has not started");
  94                         open_delegate.EndInvoke (result);
  95                 }
  96
  97                 protected override IAsyncResult OnBeginClose (TimeSpan timeout,
  98                         AsyncCallback callback, object state)
  99                 {
 100                         if (close_delegate == null)
 101                                 close_delegate = new Action<TimeSpan> (OnClose);
 102                         return close_delegate.BeginInvoke (timeout, callback, state);
 103                 }
 104
 105                 protected override void OnEndClose (IAsyncResult result)
 106                 {
 107                         if (close_delegate == null)
 108                                 throw new InvalidOperationException ("Async Close operation has not started");
 109                         close_delegate.EndInvoke (result);
 110                 }
 111         }
 112
 113         public abstract class ChannelListenerBase<TChannel>
 114                 : ChannelListenerBase, IChannelListener<TChannel>,
 115                 IChannelListener,  ICommunicationObject
 116                 where TChannel : class, IChannel
 117         {
 118                 IDefaultCommunicationTimeouts timeouts;
 119
 120                 protected ChannelListenerBase ()
 121                         : this (DefaultCommunicationTimeouts.Instance)
 122                 {
 123                 }
 124
 125                 protected ChannelListenerBase (
 126                         IDefaultCommunicationTimeouts timeouts)
 127                 {
 128                         if (timeouts == null)
 129                                 throw new ArgumentNullException ("timeouts");
 130                         this.timeouts = timeouts;
 131                 }
 132
 133                 public TChannel AcceptChannel ()
 134                 {
 135                         return AcceptChannel (timeouts.ReceiveTimeout);
 136                 }
 137
 138                 public TChannel AcceptChannel (TimeSpan timeout)
 139                 {
 140                         ThrowIfDisposedOrNotOpen ();
 141                         return OnAcceptChannel (timeout);
 142                 }
 143
 144                 public IAsyncResult BeginAcceptChannel (
 145                         AsyncCallback callback, object asyncState)
 146                 {
 147                         return BeginAcceptChannel (
 148                                 timeouts.ReceiveTimeout, callback, asyncState);
 149                 }
 150
 151                 public IAsyncResult BeginAcceptChannel (TimeSpan timeout,
 152                         AsyncCallback callback, object asyncState)
 153                 {
 154                         return OnBeginAcceptChannel (timeout, callback, asyncState);
 155                 }
 156
 157                 public TChannel EndAcceptChannel (IAsyncResult result)
 158                 {
 159                         return OnEndAcceptChannel (result);
 160                 }
 161
 162                 protected abstract TChannel OnAcceptChannel (TimeSpan timeout);
 163
 164                 protected abstract IAsyncResult OnBeginAcceptChannel (TimeSpan timeout,
 165                         AsyncCallback callback, object asyncState);
 166
 167                 protected abstract TChannel OnEndAcceptChannel (IAsyncResult result);
 168         }
 169 }