public void Discard(int byteCount)
{
Debug.Assert(byteCount <= _decryptedLength, "byteCount <= _decryptedBytes");
_buffer.Discard(byteCount);
_decryptedLength -= byteCount;
// if drained all decrypted data, discard also the tail of the frame so that only
// encrypted part of the active memory of the _buffer remains
if (_decryptedLength == 0)
{
_buffer.Discard(_decryptedPadding);
_decryptedPadding = 0;
}
}
private async ValueTask <ProtocolToken> ReceiveBlobAsync <TIOAdapter>(TIOAdapter adapter)
where TIOAdapter : ISslIOAdapter
{
int readBytes = await FillHandshakeBufferAsync(adapter, SecureChannel.ReadHeaderSize).ConfigureAwait(false);
if (readBytes == 0)
{
throw new IOException(SR.net_io_eof);
}
if (_framing == Framing.Unified || _framing == Framing.Unknown)
{
_framing = DetectFraming(_handshakeBuffer.ActiveReadOnlySpan);
}
int frameSize = GetFrameSize(_handshakeBuffer.ActiveReadOnlySpan);
if (frameSize < 0)
{
throw new IOException(SR.net_frame_read_size);
}
if (_handshakeBuffer.ActiveLength < frameSize)
{
await FillHandshakeBufferAsync(adapter, frameSize).ConfigureAwait(false);
}
ProtocolToken token = _context.NextMessage(_handshakeBuffer.ActiveReadOnlySpan.Slice(0, frameSize));
_handshakeBuffer.Discard(frameSize);
return(token);
}