public async Task <int> ReceiveAsync(ArraySegment <byte> receiveBuffer, CancellationToken cancellationToken)
{
try
{
var receivedBytes = await _transportLayer.ReceiveAsync(receiveBuffer, cancellationToken).ConfigureAwait(false);
_logger.Trace(nameof(CoapTransportLayerAdapter), $"Received {receivedBytes} bytes...");
return(receivedBytes);
}
catch (Exception exception)
{
throw new CoapCommunicationException("Error receiving CoAP messages.", exception);
}
}
public async Task <CoapResponse> Request(CoapRequest request, CancellationToken cancellationToken)
{
if (request is null)
{
throw new ArgumentNullException(nameof(request));
}
var requestMessage = _requestToMessageConverter.Convert(request);
requestMessage.Id = _messageIdProvider.Next();
var requestMessageBuffer = _messageEncoder.Encode(requestMessage);
await _transportLayer.SendAsync(requestMessageBuffer, cancellationToken).ConfigureAwait(false);
// TODO: Add proper reqest-response matching like in MQTTnet.
await _transportLayer.ReceiveAsync(_receiveBuffer, cancellationToken).ConfigureAwait(false);
var responseMessage = _messageDecoder.Decode(_receiveBuffer);
return(_messageToResponseConverter.Convert(responseMessage));
}