private void Fill()
{
int num = _targetStream.Read(_header, 0, HeaderSize);
if (num == 0)
{
_unpackedBuffer = null;
}
else
{
if (num != 8)
{
throw new InvalidDataException("input buffer corrupted (header)");
}
int compressedSize = Lz4.GetCompressedSize(_header);
if ((_readBuffer == null) || (_readBuffer.Length < (compressedSize + HeaderSize)))
{
_readBuffer = new byte[compressedSize + HeaderSize];
}
Buffer.BlockCopy(_header, 0, _readBuffer, 0, HeaderSize);
if (_targetStream.Read(_readBuffer, HeaderSize, compressedSize) != compressedSize)
{
throw new InvalidDataException("input buffer corrupted (body)");
}
_unpackedLength = Lz4.Decompress(_readBuffer, 0, ref _unpackedBuffer);
_unpackedOffset = 0;
}
}
public override void Flush()
{
if (_writeBufferOffset <= 0)
{
return;
}
var count = Lz4.Compress(_writeBuffer, 0, _writeBufferOffset, ref _compressedBuffer, _compressionMode);
_targetStream.Write(_compressedBuffer, 0, count);
_writeBufferOffset = 0;
}
public Lz4CompressionStream(Stream targetStream, int bufferSize, Lz4Mode mode = 0, bool closeStream = false)
: this(targetStream, new byte[bufferSize], new byte[Lz4.LZ4_compressBound(bufferSize)], mode, closeStream)
{
}