/// <summary>
/// Coies the current stream onto the given one
/// </summary>
/// <param name="stream"></param>
public void MoveTo(FifoStream stream)
{
stream._lastBuffer = _lastBuffer;
_lastBuffer = null;
var count = _localBuffer.Count;
for (var i = 0; i < count; i++)
{
stream._localBuffer.Enqueue(_localBuffer.Dequeue());
}
stream._length += _length;
_length = 0;
_localBuffer.Clear();
}
/// <summary>
/// Moves the required amount of bytes onto a new fifostream
/// Warning: Unused buffer segments can appear
/// </summary>
/// <param name="requiredBytes"></param>
/// <returns></returns>
public FifoStream FastMove(int requiredBytes)
{
_lastBuffer = null;
var dStream = new FifoStream(_ringBufferProvider);
while (requiredBytes > 0 && _length > 0 && _localBuffer.Count > 0)
{
var cBuf = _localBuffer.Peek();
var cBufLen = cBuf.Length;
if (cBufLen <= requiredBytes)
{
dStream._localBuffer.Enqueue(cBuf);
dStream._length += cBufLen;
requiredBytes -= cBufLen;
_length -= cBufLen;
_localBuffer.Dequeue();
}
else
{
var nBuf = _ringBufferProvider.Create();
var readBytes =
nBuf.Write(cBuf.Value, cBuf.Low, requiredBytes);
cBuf.Low += readBytes;
_length -= readBytes;
requiredBytes -= readBytes;
dStream._length += readBytes;
dStream._localBuffer.Enqueue(nBuf);
if (cBuf.Length == 0)
{
_localBuffer.Dequeue().ReIntegrate();
}
}
}
return(dStream);
}
