public string Receive(bool ignoreErrors)
{
if (!IsOpened && !IsOpening)
{
return("NOT CONNECTED");
}
/* reset failure flag if requested */
if (ignoreErrors)
{
TransferFailure = false;
}
if (TransferFailure)
{
return(TransferString);
}
try
{
lock (TransferLock)
{
TransferDirection = eTransferDirection.Receive;
Monitor.Pulse(TransferLock);
while (TransferDirection == eTransferDirection.Receive)
{
Monitor.Wait(TransferLock, 5);
}
if (TransferFailure && !ignoreErrors)
{
RX_FFT.Components.GDI.Log.AddMessage("SerialPortTuner TransferFailure -> DeviceLost");
if (DeviceDisappeared != null)
{
DeviceDisappeared(this, null);
}
}
}
}
catch (Exception e)
{
}
/* reset failure flag if requested */
if (ignoreErrors)
{
TransferFailure = false;
}
return(TransferString);
}
public void Send(string cmd)
{
if (!IsOpened && !IsOpening)
{
return;
}
if (TransferFailure)
{
return;
}
try
{
lock (TransferLock)
{
TransferDirection = eTransferDirection.Send;
TransferString = cmd;
Monitor.Pulse(TransferLock);
while (TransferDirection == eTransferDirection.Send)
{
Monitor.Wait(TransferLock, 5);
}
}
if (TransferFailure && DeviceDisappeared != null)
{
DeviceDisappeared(this, null);
}
}
catch (Exception e)
{
}
return;
}
private void TransferThreadMain()
{
string lastSendString = "";
try
{
lock (TransferLock)
{
while (true)
{
Monitor.Wait(TransferLock);
bool retry = true;
for (int tries = 5; retry && (tries > 0); tries--)
{
/* default: do not retry transmission */
retry = false;
try
{
switch (TransferDirection)
{
case eTransferDirection.Receive:
TransferString = ReceiveInternal();
TransmitDelay.Stop();
TransmitDuration = TransmitDelay.Duration;
lastSendString = "";
break;
case eTransferDirection.Send:
TransmitDelay.Start();
SendInternal(TransferString);
lastSendString = TransferString;
break;
case eTransferDirection.None:
break;
}
}
catch (TimeoutException e)
{
RX_FFT.Components.GDI.Log.AddMessage("[SerialPortTuner] Failure: TIMEOUT");
if (tries == 0 || lastSendString == "")
{
TransferString = "TIMEOUT";
TransferFailure = true;
}
else
{
retry = true;
SendInternal(lastSendString);
}
}
catch (Exception e)
{
RX_FFT.Components.GDI.Log.AddMessage("[SerialPortTuner] Failure: TRANSFER FAILURE (" + e.ToString() + ")");
if (tries == 0 || lastSendString == "")
{
TransferString = "TRANSFER FAILURE";
TransferFailure = true;
}
else
{
retry = true;
SendInternal(lastSendString);
}
}
}
TransferDirection = eTransferDirection.None;
Monitor.Pulse(TransferLock);
}
}
}
catch (ThreadAbortException)
{
}
catch (Exception e)
{
Log.AddMessage("Exception: " + e.ToString());
}
}
