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//----------------------------------------------------------------
// Copyright (c) Microsoft Corporation. All rights reserved.
//----------------------------------------------------------------
namespace System.ServiceModel.Channels
{
using System;
using System.Collections.Generic;
using System.Globalization;
using System.Net;
using System.Net.Sockets;
using System.Runtime;
using System.Runtime.Diagnostics;
using System.ServiceModel.Diagnostics;
using System.Threading;
using System.Xml;
abstract class UdpDuplexChannel : UdpChannelBase<Message>, IDuplexChannel
{
protected UdpDuplexChannel(
ChannelManagerBase channelMananger,
MessageEncoder encoder,
BufferManager bufferManager,
UdpSocket[] sendSockets,
UdpRetransmissionSettings retransmissionSettings,
long maxPendingMessagesTotalSize,
EndpointAddress localAddress,
Uri via,
bool isMulticast,
int maxReceivedMessageSize)
: base(channelMananger, encoder, bufferManager, sendSockets, retransmissionSettings, maxPendingMessagesTotalSize, localAddress, via, isMulticast, maxReceivedMessageSize)
{
}
public virtual EndpointAddress RemoteAddress
{
get { return null; }
}
public override T GetProperty<T>()
{
if (typeof(T) == typeof(IDuplexChannel))
{
return (T)(object)this;
}
return base.GetProperty<T>();
}
public IAsyncResult BeginSend(Message message, AsyncCallback callback, object state)
{
return this.BeginSend(message, this.DefaultSendTimeout, callback, state);
}
public IAsyncResult BeginSend(Message message, TimeSpan timeout, AsyncCallback callback, object state)
{
ThrowIfDisposedOrNotOpen();
if (message is NullMessage)
{
return new CompletedAsyncResult(callback, state);
}
AddHeadersTo(message);
return this.UdpOutputChannel.BeginSend(message, timeout, callback, state);
}
public void EndSend(IAsyncResult result)
{
if (result is CompletedAsyncResult)
{
CompletedAsyncResult.End(result);
}
else
{
this.UdpOutputChannel.EndSend(result);
}
}
public void Send(Message message)
{
this.Send(message, this.DefaultSendTimeout);
}
public void Send(Message message, TimeSpan timeout)
{
if (message is NullMessage)
{
return;
}
this.UdpOutputChannel.Send(message, timeout);
}
public Message Receive()
{
return this.Receive(this.DefaultReceiveTimeout);
}
public Message Receive(TimeSpan timeout)
{
if (timeout < TimeSpan.Zero)
{
throw FxTrace.Exception.AsError(new ArgumentOutOfRangeException("timeout", timeout, SR.TimeoutOutOfRange0));
}
this.ThrowPending();
return InputChannel.HelpReceive(this, timeout);
}
public IAsyncResult BeginReceive(AsyncCallback callback, object state)
{
return this.BeginReceive(this.DefaultReceiveTimeout, callback, state);
}
public IAsyncResult BeginReceive(TimeSpan timeout, AsyncCallback callback, object state)
{
if (timeout < TimeSpan.Zero)
{
throw FxTrace.Exception.AsError(new ArgumentOutOfRangeException("timeout", timeout, SR.TimeoutOutOfRange0));
}
this.ThrowPending();
return InputChannel.HelpBeginReceive(this, timeout, callback, state);
}
public Message EndReceive(IAsyncResult result)
{
return InputChannel.HelpEndReceive(result);
}
public bool TryReceive(TimeSpan timeout, out Message message)
{
if (timeout < TimeSpan.Zero)
{
throw FxTrace.Exception.AsError(new ArgumentOutOfRangeException("timeout", timeout, SR.TimeoutOutOfRange0));
}
this.ThrowPending();
return base.Dequeue(timeout, out message);
}
public IAsyncResult BeginTryReceive(TimeSpan timeout, AsyncCallback callback, object state)
{
if (timeout < TimeSpan.Zero)
{
throw FxTrace.Exception.AsError(new ArgumentOutOfRangeException("timeout", timeout, SR.TimeoutOutOfRange0));
}
this.ThrowPending();
return base.BeginDequeue(timeout, callback, state);
}
public bool EndTryReceive(IAsyncResult result, out Message message)
{
return base.EndDequeue(result, out message);
}
public bool WaitForMessage(TimeSpan timeout)
{
if (timeout < TimeSpan.Zero)
{
throw FxTrace.Exception.AsError(new ArgumentOutOfRangeException("timeout", timeout, SR.TimeoutOutOfRange0));
}
this.ThrowPending();
return base.WaitForItem(timeout);
}
public IAsyncResult BeginWaitForMessage(TimeSpan timeout, AsyncCallback callback, object state)
{
if (timeout < TimeSpan.Zero)
{
throw FxTrace.Exception.AsError(new ArgumentOutOfRangeException("timeout", timeout, SR.TimeoutOutOfRange0));
}
this.ThrowPending();
return base.BeginWaitForItem(timeout, callback, state);
}
public bool EndWaitForMessage(IAsyncResult result)
{
return base.EndWaitForItem(result);
}
internal override void FinishEnqueueMessage(Message message, Action dequeuedCallback, bool canDispatchOnThisThread)
{
if (!this.IsMulticast)
{
//When using Multicast, we can't assume that receiving one message means that we are done receiving messages.
//For example, Discovery will send one message out and receive n responses that match. Because of this, we
//can only short circuit retransmission when using unicast.
this.UdpOutputChannel.CancelRetransmission(message.Headers.RelatesTo);
}
this.EnqueueAndDispatch(message, dequeuedCallback, canDispatchOnThisThread);
}
}
}
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