public SendAsyncResult(UdpOutputChannel channel, Message message, AsyncCallback callback, object state)
: base(callback, state)
{
this.channel = channel;
this.messageBuffer = channel.EncodeMessage(message);
try
{
IAsyncResult result = null;
try
{
result = channel.socket.BeginSendTo(messageBuffer.Array, messageBuffer.Offset, messageBuffer.Count,
SocketFlags.None, channel.remoteEndPoint, new AsyncCallback(OnSend), this);
}
catch (SocketException socketException)
{
throw UdpChannelHelpers.ConvertTransferException(socketException);
}
if (!result.CompletedSynchronously)
{
return;
}
CompleteSend(result, true);
}
catch
{
CleanupBuffer();
throw;
}
}
public SendAsyncResult(UdpOutputChannel channel, Message message, AsyncCallback callback, object state)
: base(callback, state)
{
this.channel = channel;
//obtain the transaction propagation token from the TransactionFlowProperty on the message
byte[] txPropToken = TransactionFlowProperty.Get(message);
this.messageBuffer = channel.EncodeMessage(message);
txmsgBuffer = TransactionMessageBuffer.WriteTransactionMessageBuffer(txPropToken, messageBuffer);
if ((long)txmsgBuffer.Length > channel.Factory.MaxPacketSize)
{
throw new CommunicationException("The output packet size is greater than the maximum size supported.");
}
try
{
IAsyncResult result = null;
try
{
result = channel.socket.BeginSendTo(txmsgBuffer, 0, txmsgBuffer.Length,
SocketFlags.None, channel.remoteEndPoint, new AsyncCallback(OnSend), this);
}
catch (SocketException socketException)
{
throw UdpChannelHelpers.ConvertTransferException(socketException);
}
if (!result.CompletedSynchronously)
{
return;
}
CompleteSend(result, true);
}
catch
{
CleanupBuffer();
throw;
}
}