/// <summary>
/// prepares Background Worker but does not start it yet.
/// </summary>
void PrepareBackgroundWorker()
{
// get our dispatcher
System.Windows.Threading.Dispatcher dispatcher = this.Dispatcher;
// create our background worker and support cancellation
worker = new BackgroundWorker();
worker.WorkerSupportsCancellation = true;
worker.DoWork += delegate(object s, DoWorkEventArgs args)
{
Debug.WriteLine("IP: RunWorker started");
try
{
isWorkerRunning = true;
// open currentPort
lidarLiteProcessor = new LidarLiteProcessor();
lidarLiteProcessor.Open(new string[] { currentPort });
lidarLiteProcessor.DataReceivedEvent += lidarLiteProcessor_DataReceived;
Dispatcher.Invoke(new Action<object>(EnableOpenCloseButton), "");
while (true)
{
lidarLiteProcessor.StartedLoop(); // helps keeping 20ms cycle steady
if (worker.CancellationPending)
{
Debug.WriteLine("IP: RunWorker Cancellation Pending, closing serial port");
lidarLiteProcessor.Close();
args.Cancel = true;
Debug.WriteLine("OK: RunWorker Cancellation sequence completed");
isWorkerRunning = false;
return;
}
lidarLiteProcessor.Process();
DisplayAll();
lidarLiteProcessor.WaitInLoop(); // we won't wait here longer than lidarLiteProcessor.desiredLoopTimeMs - about 20ms-<already elapsed time>
}
}
catch (Exception exc)
{
Debug.WriteLine("Error: RunWorker: " + exc);
// create a new delegate for updating our status text
UpdateStatusDelegate update = new UpdateStatusDelegate(UpdateStatusText);
// invoke the dispatcher and pass the error data:
Dispatcher.BeginInvoke(update, "Error: RunWorker: " + exc.Message);
lidarLiteProcessor.Close(); // close communication to the serial port
Dispatcher.Invoke(new Action<object>(ResetOpenCloseButton), "");
}
};
worker.RunWorkerCompleted += delegate(object s, RunWorkerCompletedEventArgs args)
{
isWorkerRunning = false;
Dispatcher.Invoke(new Action<object>(EnableOpenCloseButton), "");
Debug.WriteLine("OK: RunWorker Completed");
};
}
/// <summary>
/// prepares Background Worker but does not start it yet.
/// </summary>
void PrepareBackgroundWorker()
{
// get our dispatcher
System.Windows.Threading.Dispatcher dispatcher = this.Dispatcher;
// create our background worker and support cancellation
worker = new BackgroundWorker();
worker.WorkerSupportsCancellation = true;
worker.DoWork += delegate(object s, DoWorkEventArgs args)
{
Debug.WriteLine("IP: RunWorker started");
try
{
isWorkerRunning = true;
// open currentPort
lidarLiteProcessor = new LidarLiteProcessor();
lidarLiteProcessor.Open(new string[] { currentPort });
lidarLiteProcessor.DataReceivedEvent += lidarLiteProcessor_DataReceived;
Dispatcher.Invoke(new Action <object>(EnableOpenCloseButton), "");
while (true)
{
lidarLiteProcessor.StartedLoop(); // helps keeping 20ms cycle steady
if (worker.CancellationPending)
{
Debug.WriteLine("IP: RunWorker Cancellation Pending, closing serial port");
lidarLiteProcessor.Close();
args.Cancel = true;
Debug.WriteLine("OK: RunWorker Cancellation sequence completed");
isWorkerRunning = false;
return;
}
lidarLiteProcessor.Process();
DisplayAll();
lidarLiteProcessor.WaitInLoop(); // we won't wait here longer than lidarLiteProcessor.desiredLoopTimeMs - about 20ms-<already elapsed time>
}
}
catch (Exception exc)
{
Debug.WriteLine("Error: RunWorker: " + exc);
// create a new delegate for updating our status text
UpdateStatusDelegate update = new UpdateStatusDelegate(UpdateStatusText);
// invoke the dispatcher and pass the error data:
Dispatcher.BeginInvoke(update, "Error: RunWorker: " + exc.Message);
lidarLiteProcessor.Close(); // close communication to the serial port
Dispatcher.Invoke(new Action <object>(ResetOpenCloseButton), "");
}
};
worker.RunWorkerCompleted += delegate(object s, RunWorkerCompletedEventArgs args)
{
isWorkerRunning = false;
Dispatcher.Invoke(new Action <object>(EnableOpenCloseButton), "");
Debug.WriteLine("OK: RunWorker Completed");
};
}
