private void OnFrameTimeOutEvent(FrameTimeOutEventArgs args)
{
if (FrameTimeOutEvent != null)
{
_logger.Warn("--- Timeout occured."
+ Environment.NewLine
+ string.Format("Frame sent info : frame of type {0} with ID : {1}, timeout set to {2}, expected receiver address : {3}", args.FrameSent.FrameOrder, args.FrameSent.FrameId, args.FrameSent.TotalTimeOut, args.FrameSent.ReceiverAddress)
+ Environment.NewLine
+ string.Format("=> flight time : {0} ", args.FrameSent.FlightTime));;
FrameTimeOutEvent(this, args);
}
}
private void Transceiver_FrameTimeOutEvent(object sender, FrameTimeOutEventArgs e)
{
if (e.FrameSent is PingFrame pingFrame)
{
if (pingFrame.ReceiverAddress == _address)
{
_messageLostCounterTemp += 1;
MessageLostCounter = _messageLostCounterTemp.ToString();
}
}
if (e.FrameSent is CondFrame condFrame)
{
if (condFrame.ReceiverAddress == _address)
{
_receptorAddressTested.Conductivite = "Timeout! Transceiver plugged?";
}
}
}
/// <summary>
/// Need to be called that way in the code : var result = await _core.SubmitLoRaFrameAsync();
/// await will created a new thread so it is not block in the UI
/// </summary>
/// <param name="frame">Frame to send</param>
/// <param name="timeout">Total Timeout in ms = time waited to send AND received a frame</param>
/// <returns></returns>
private Task <FrameBase> SubmitLoRaFrameAsync(FrameBase frame, int timeout)
{
var tcs = new TaskCompletionSource <FrameBase>();
_pendingLoRaFrames.TryAdd(frame.FrameId, tcs);
_sentLoRaFrames.TryAdd(frame.FrameId, frame);
//Launch async task
Task.Run(async() =>
{
//Send frame via Serial
await _serialPortManager.WriteThreadSafeAsync(frame.GetFrameToByteArray());
_logger.Info("**************************************************************************");
_logger.Info("*** Sending frame : " + frame.GetFrameToString() + Environment.NewLine);
_logger.Info("*** Frame order : " + frame.FrameOrder);
_logger.Info("*** Receiver address : " + frame.ReceiverAddress);
_logger.Info("*** Sent counter : " + frame.SentCounter + Environment.NewLine);
//Begin to wait for ack!
await Task.Delay(timeout);
//Here if remove does not succeed it means ack ok or ko has been received
//thus _pendingLoRaFrames does not contain tcs anymore
//otherwise it is a timeout
if (_pendingLoRaFrames.TryRemove(frame.FrameId, out tcs))
{
//Remove task from concurrent dictionary
_sentLoRaFrames.TryRemove(frame.FrameId, out var sentFrame);
//TimeOut event here
sentFrame.ArrivedTime = DateTime.Now.TimeOfDay.TotalMilliseconds;
FrameTimeOutEventArgs args = new FrameTimeOutEventArgs(sentFrame);
OnFrameTimeOutEvent(args);
tcs.TrySetException(new AckNotReceivedTimeoutException("Timeout : Ack Not received"));
}
}).ConfigureAwait(false);
return(tcs.Task);
}
