ManagedXZ.XZCompressStream.Init C# (CSharp) Method

        private void Init()
        {
            lzma_ret ret = XZUtils.CreateEncoder(_lzma_stream, _threads, _preset);
            if (ret != lzma_ret.LZMA_OK)
                throw new Exception($"Can not create lzma stream: {ret}");

            _inbuf = Marshal.AllocHGlobal(BUFSIZE);
            _outbuf = Marshal.AllocHGlobal(BUFSIZE);

            // init lzma_stream
            _lzma_stream.next_in = _inbuf;
            _lzma_stream.next_out = _outbuf;
            _lzma_stream.avail_in = UIntPtr.Zero;
            _lzma_stream.avail_out = (UIntPtr)BUFSIZE;
        }