private void Flush(TimeSpan timeout)
{
FlushStopWatch.Reset();
FlushStopWatch.Start();
do
{
if (GetICommunicationLayer.CheckChar() == TCheckCharRes.DataInd)
{
GetICommunicationLayer.Flush();
}
System.Threading.Thread.Sleep(1);
}while (FlushStopWatch.Elapsed < timeout);
FlushStopWatch.Stop();
}
protected bool CheckCharTimeout(TimeSpan timeout, Stopwatch stopwatch)
{
Debug.Assert(stopwatch.IsRunning, "StopWatch is not running");
if (!stopwatch.IsRunning)
{
// if we are inside this "if" statement something has gone wrong we have to start the stopwatch to prevent application hang
stopwatch.Reset();
stopwatch.Start();
}
TimeSpan minWaitTime = TimeSpan.FromMilliseconds(20);
while (true)
{
switch (GetICommunicationLayer.CheckChar())
{
case TCheckCharRes.DataInd:
return(true);
case TCheckCharRes.NoDataAvailable:
//because the thread can be inactive for a while we have to check once more character availability.
if (stopwatch.Elapsed > timeout && GetICommunicationLayer.CheckChar() != TCheckCharRes.DataInd)
{
return(false);
}
else
{
break;
}
if (stopwatch.Elapsed + minWaitTime < timeout)
{
Thread.Sleep(1);
}
break;
case TCheckCharRes.DisInd:
throw (new DisconnectException());
}
}
}
