private void StartListening()
{
CheckIsDisposed();
ListeningStatus = ProcessStatus.WaitingToRun;
Task.Run(async() =>
{
try
{
ListeningStatus = ProcessStatus.Running;
while (ListeningStatus == ProcessStatus.Running)
{
var lengthArray = new byte[sizeof(int)];
var readBytes = 0;
do
{
readBytes += await _stream.ReadAsync(lengthArray, readBytes, lengthArray.Length - readBytes,
_cancellationTokenSource.Token).ConfigureAwait(false);
}while (readBytes < lengthArray.Length);
_cancellationTokenSource.Token.ThrowIfCancellationRequested();
var length = BitConverter.ToInt32(lengthArray.Reverse().ToArray(), 0);
if (length <= 0)
{
continue;
}
if (length > MaxMessageSize)
{
var exceptionMsg = $"Message length ({length}) is out of range (0 - {MaxMessageSize})";
throw new ArgumentOutOfRangeException(exceptionMsg);
}
var message = new byte[length];
readBytes = 0;
do
{
readBytes += await _stream.ReadAsync(message, readBytes, message.Length - readBytes,
_cancellationTokenSource.Token).ConfigureAwait(false);
}while (readBytes < length);
Streams.InvokeMessageStream(message);
}
ListeningStatus = ProcessStatus.Stopped;
}
catch (OperationCanceledException)
{
ListeningStatus = ProcessStatus.Stopped;
}
catch (Exception ex)
{
ListeningStatus = ProcessStatus.Error;
if (!Streams.ListenerExceptionStream.Observers.Any())
{
throw;
}
Streams.OnListenerException(ex);
}
});
}