/// <summary>
/// Verify TS_FRAME_ACKNOWLEDGE_PDU
/// </summary>
/// <param name="ackPdu">The TS_FRAME_ACKNOWLEDGE_PDU to be verified</param>
private void VerifyTS_FRAME_ACKNOWLEDGE_PDU(TS_FRAME_ACKNOWLEDGE_PDU ackPdu)
{
this.Site.Log.Add(LogEntryKind.Comment, "The frameID of TS_FRAME_ACKNOWLEDGE_PDU is {0}", ackPdu.frameID);
if (ackPdu.frameID == 0xFFFFFFFF)
{
this.Site.Assert.IsTrue(ackPdu.frameID == 0xFFFFFFFF, "[TS_FRAME_ACKNOWLEDGE_PDU] If frameID has the value 0xFFFFFFFF, the server SHOULD assume that all in-flight frames have been acknowledged.");
}
else
{
this.Site.Assert.AreEqual <uint>(this.frameMakerFrameId, ackPdu.frameID, "[TS_FRAME_ACKNOWLEDGE_PDU][frameID] This field specifies the 32-bit identifier of the frame that was sent to the client using a Frame Marker Command and is being acknowledged as delivered");
}
}
/// <summary>
/// This method expect a TS_FRAME_ACKNOWLEDGE_PDU from client.
/// </summary>
/// <param name="expectedFrameId">The expected frame id.</param>
/// <param name="ackTimeout">The time span to wait.</param>
public void ExpectTsFrameAcknowledgePdu(uint expectedFrameId, TimeSpan ackTimeout)
{
this.frameMakerFrameId = expectedFrameId;
if (this.rdpbcgrAdapter != null)
{
this.rdpbcgrAdapter.WaitForPacket <TS_FRAME_ACKNOWLEDGE_PDU>(ackTimeout);
}
else if (this.rdpbcgrServerStack != null && this.rdpbcgrSessionContext != null)
{
StackPacket receivedPdu = null;
TS_FRAME_ACKNOWLEDGE_PDU ackPdu = null;
bool isReceived = false;
TimeSpan leftTime = ackTimeout;
DateTime expiratedTime = DateTime.Now + ackTimeout;
foreach (StackPacket pdu in pduCache)
{
ackPdu = pdu as TS_FRAME_ACKNOWLEDGE_PDU;
if (ackPdu != null)
{
isReceived = true;
pduCache.Remove(pdu);
break;
}
}
while (!isReceived && leftTime.CompareTo(new TimeSpan(0)) > 0)
{
try
{
receivedPdu = this.rdpbcgrServerStack.ExpectPdu(this.rdpbcgrSessionContext, leftTime);
ackPdu = receivedPdu as TS_FRAME_ACKNOWLEDGE_PDU;
if (ackPdu != null)
{
isReceived = true;
break;
}
else
{
Site.Log.Add(LogEntryKind.TestInProgress, "Received and cached Pdu: {0}.", receivedPdu.GetType());
pduCache.Add(receivedPdu);
}
}
catch (TimeoutException)
{
Site.Assert.Fail("Timeout when expecting {0}", typeof(TS_FRAME_ACKNOWLEDGE_PDU));
}
catch (InvalidOperationException ex)
{
//break;
Site.Log.Add(LogEntryKind.Warning, "Exception thrown out when receiving client PDUs {0}.", ex.Message);
}
finally
{
System.Threading.Thread.Sleep(100);//Wait some time for next packet.
leftTime = expiratedTime - DateTime.Now;
}
}
if (isReceived)
{
this.VerifyTS_FRAME_ACKNOWLEDGE_PDU(ackPdu);
}
else
{
site.Assert.Fail("Timeout when expecting {0}.", typeof(TS_FRAME_ACKNOWLEDGE_PDU));
}
}
}