public override async ValueTask <int> ReadAsync(byte[] buffer, int offset, int length, CancellationToken cancellationToken)
{
CheckNotDisposed();
ValidateBufferArgs(buffer, offset, length);
if (!IsOpen)
{
throw new TTransportException(TTransportException.ExceptionType.NotOpen);
}
// do we have something buffered?
var count = ReadBuffer.Length - ReadBuffer.Position;
if (count > 0)
{
return(await ReadBuffer.ReadAsync(buffer, offset, length, cancellationToken));
}
// does the request even fit into the buffer?
// Note we test for >= instead of > to avoid nonsense buffering
if (length >= ReadBuffer.Capacity)
{
return(await InnerTransport.ReadAsync(buffer, offset, length, cancellationToken));
}
// buffer a new chunk of bytes from the underlying transport
ReadBuffer.Length = ReadBuffer.Capacity;
ArraySegment <byte> bufSegment;
ReadBuffer.TryGetBuffer(out bufSegment);
ReadBuffer.Length = await InnerTransport.ReadAsync(bufSegment.Array, 0, bufSegment.Count, cancellationToken);
ReadBuffer.Position = 0;
// deliver the bytes
return(await ReadBuffer.ReadAsync(buffer, offset, length, cancellationToken));
}
public override async Task <int> ReadAsync(byte[] buffer, int offset, int length,
CancellationToken cancellationToken)
{
//TODO: investigate how it should work correctly
CheckNotDisposed();
ValidateBufferArgs(buffer, offset, length);
if (!IsOpen)
{
throw new TTransportException(TTransportException.ExceptionType.NotOpen);
}
if (_inputBuffer.Capacity < _bufSize)
{
_inputBuffer.Capacity = _bufSize;
}
var got = await _inputBuffer.ReadAsync(buffer, offset, length, cancellationToken);
if (got > 0)
{
return(got);
}
_inputBuffer.Seek(0, SeekOrigin.Begin);
_inputBuffer.SetLength(_inputBuffer.Capacity);
ArraySegment <byte> bufSegment;
_inputBuffer.TryGetBuffer(out bufSegment);
// investigate
var filled = await _transport.ReadAsync(bufSegment.Array, 0, (int)_inputBuffer.Length, cancellationToken);
_inputBuffer.SetLength(filled);
if (filled == 0)
{
return(0);
}
return(await ReadAsync(buffer, offset, length, cancellationToken));
}