void EnsureConnection()
{
lock (connectLock)
{
if (this.dataChannel == null || this.dataChannel.State != CommunicationState.Opened)
{
this.multiplexedOutputStream = new ThrottledQueueBufferedStream(5);
QueueBufferedStream multiplexedInputStream = new QueueBufferedStream();
this.dataChannelFactory = CreateDataChannelFactory(multiplexedInputStream);
this.dataChannelFactory.Open();
this.dataChannel = dataChannelFactory.CreateChannel(new EndpointAddress("sb:"), endpointVia);
try
{
this.dataChannel.Open();
this.dataChannel.Closed += DataChannelClosed;
this.dataChannel.Faulted += DataChannelClosed;
IHybridConnectionStatus status = dataChannel.GetProperty <IHybridConnectionStatus>();
if (status != null)
{
status.ConnectionStateChanged += (o, e) =>
{
Trace.TraceInformation("Data channel upgraded to direct connection.");
};
}
this.dataChannel.Connect("tcp:" + toPort.ToString());
this.inputPump = new MultiplexConnectionInputPump(multiplexedInputStream.Read, CorrelateConnection, null);
this.inputPump.Run(false);
this.outputPump = new StreamBufferWritePump(multiplexedOutputStream, WriteToDataChannel);
this.dataChannel.Extensions.Add(new DataExchangeChannelFaultHelper(outputPump));
this.outputPump.BeginRunPump(MultiplexPumpCompleted, null);
return;
}
catch (AuthorizationFailedException af)
{
Trace.TraceError("Authorization failed: {0}", af.Message);
if (dataChannel != null)
{
dataChannel.Abort();
dataChannel = null;
}
throw;
}
catch (Exception ex)
{
this.dataChannelFactory.Abort();
this.dataChannelFactory = null;
Trace.TraceError("Unable to establish data channel: {0}", ex.Message);
if (dataChannel != null)
{
dataChannel.Abort();
dataChannel = null;
}
throw;
}
}
}
}
public DataExchangeChannelFaultHelper(StreamBufferWritePump pump)
{
this.pump = pump;
}