private async Task <Message> ReceiveMessageAsync(CancellationToken ct)
{
Message message;
try {
message = await _transport.ReceiveAsync(ct);
} catch (MessageTransportException ex) when(ct.IsCancellationRequested)
{
// Network errors during cancellation are expected, but should not be exposed to clients.
throw new OperationCanceledException(new OperationCanceledException().Message, ex);
}
if (message != null)
{
_log.Response(message.ToString(), _rLoopDepth);
}
return(message);
}