public override unsafe void Close()
{
if (_isClosed)
{
return;
}
_isClosed = true;
if (_mode == CompressionMode.Compress)
{
// Mark end of stream
var endSize = LZ4F_compressEnd(_ctx, _dstBuffer.Ptr, (IntPtr)_dstBuffer.Size);
if (LZ4F_isError(endSize))
{
throw new LZ4Exception(endSize, $"End of file generation failed {GetErrorName(endSize)}");
}
_baseStream.Write(_dstBuffer.Buffer, 0, endSize.ToInt32());
var rc = LZ4F_freeCompressionContext(_ctx);
if (LZ4F_isError(rc))
{
throw new LZ4Exception(rc, $"Error : can't free LZ4F context resource: {GetErrorName(rc)}");
}
}
else
{
// Decompress
var rc = LZ4Native.LZ4F_freeDecompressionContext(_ctx);
if (LZ4Native.LZ4F_isError(rc))
{
throw new LZ4Exception(rc,
$"Error : can't free LZ4F context resource : {LZ4Native.GetErrorName(rc)}");
}
}
_baseStream.Close();
if (_srcBuffer != null)
{
_srcBuffer.Dispose();
_srcBuffer = null;
}
if (_dstBuffer != null)
{
_dstBuffer.Dispose();
_dstBuffer = null;
}
}
/// <summary>
/// Initializes a new instance of the <see cref="LZ4Exception"/> class with a specified
/// error code
/// </summary>
/// <param name="errorCode">The lz4 error code that caused the exception</param>
public LZ4Exception(IntPtr errorCode) : this(errorCode, LZ4Native.GetErrorName(errorCode))
{
}
