/// <summary>
/// Expect a DVC Capabilities Response PDU
/// </summary>
/// <param name="timeout">Timeout</param>
/// <param name="transportType">Transport type</param>
/// <returns></returns>
private CapsRespDvcPdu ExpectDVCCapResponsePDU(TimeSpan timeout, DynamicVC_TransportType transportType = DynamicVC_TransportType.RDP_TCP)
{
DateTime endTime = DateTime.Now + timeout;
while (DateTime.Now < endTime)
{
if (unprocessedDVCPacketBuffer.Count > 0)
{
lock (unprocessedDVCPacketBuffer)
{
for (int i = 0; i < unprocessedDVCPacketBuffer.Count; i++)
{
if (transportType == unprocessedDVCPacketBuffer[i].TransportType &&
unprocessedDVCPacketBuffer[i].PDU is CapsRespDvcPdu)
{
CapsRespDvcPdu capResp = unprocessedDVCPacketBuffer[i].PDU as CapsRespDvcPdu;
unprocessedDVCPacketBuffer.RemoveAt(i);
return(capResp);
}
}
}
}
Thread.Sleep(this.waitInterval);
}
return(null);
}
/// <summary>
/// Exchange DVC capability, negotiate the version
/// </summary>
/// <param name="version"></param>
public void ExchangeCapabilities(TimeSpan timeout, DYNVC_CAPS_Version version = DYNVC_CAPS_Version.VERSION3)
{
this.SendDVCCapRequestPDU(version);
CapsRespDvcPdu capResp = this.ExpectDVCCapResponsePDU(timeout);
if (capResp == null)
{
throw new System.IO.IOException("Cannot receive a DVC Capabilities Response PDU!");
}
}
/// <summary>
/// Send a DVC Capabilities Response PDU
/// </summary>
/// <param name="version">Version</param>
/// <param name="transportType">Transport Type</param>
private void SendDVCCapResponsePDU(DYNVC_CAPS_Version version, DynamicVC_TransportType transportType = DynamicVC_TransportType.RDP_TCP)
{
CapsRespDvcPdu capResp = pduBuilder.CreateCapsRespPdu((ushort)version);
this.Send(capResp, transportType);
}