internal bool ReceiveFromBufferedPayload(ArraySegment <byte> buffer, out WebSocketReceiveResult receiveResult)
{
ThrowIfDisposed();
ValidateBufferedPayload();
int bytesTransferred = Math.Min(buffer.Count, _bufferedPayloadReceiveResult.Count);
_bufferedPayloadReceiveResult.Count -= bytesTransferred;
receiveResult = new WebSocketReceiveResult(
bytesTransferred,
_bufferedPayloadReceiveResult.MessageType,
_bufferedPayloadReceiveResult.Count == 0 && _bufferedPayloadReceiveResult.EndOfMessage);
Buffer.BlockCopy(_payloadBuffer.Array,
_payloadBuffer.Offset + _payloadOffset,
buffer.Array,
buffer.Offset,
bytesTransferred);
bool morePayloadBuffered;
if (_bufferedPayloadReceiveResult.Count == 0)
{
_payloadOffset = 0;
_bufferedPayloadReceiveResult = null;
morePayloadBuffered = false;
}
else
{
_payloadOffset += bytesTransferred;
morePayloadBuffered = true;
this.ValidateBufferedPayload();
}
return(morePayloadBuffered);
}
internal void BufferPayload(ArraySegment <byte> payload,
int unconsumedDataOffset,
WebSocketMessageType messageType,
bool endOfMessage)
{
ThrowIfDisposed();
int bytesBuffered = payload.Count - unconsumedDataOffset;
Debug.Assert(_payloadOffset == 0,
"'m_PayloadOffset' MUST be '0' at this point.");
Debug.Assert(_bufferedPayloadReceiveResult == null || _bufferedPayloadReceiveResult.Count == 0,
"'_bufferedPayloadReceiveResult.Count' MUST be '0' at this point.");
Buffer.BlockCopy(payload.Array,
payload.Offset + unconsumedDataOffset,
_payloadBuffer.Array,
_payloadBuffer.Offset,
bytesBuffered);
_bufferedPayloadReceiveResult =
new PayloadReceiveResult(bytesBuffered, messageType, endOfMessage);
this.ValidateBufferedPayload();
}
