Ionic.Zlib.ParallelDeflateOutputStream.DeflateOneSegment C# (CSharp) Method

        private bool DeflateOneSegment(WorkItem workitem)
        {
            ZlibCodec compressor = workitem.compressor;
            int rc= 0;
            compressor.ResetDeflate();
            compressor.NextIn = 0;

            compressor.AvailableBytesIn = workitem.inputBytesAvailable;

            // step 1: deflate the buffer
            compressor.NextOut = 0;
            compressor.AvailableBytesOut =  workitem.compressed.Length;
            do
            {
                compressor.Deflate(FlushType.None);
            }
            while (compressor.AvailableBytesIn > 0 || compressor.AvailableBytesOut == 0);

            // step 2: flush (sync)
            rc = compressor.Deflate(FlushType.Sync);

            workitem.compressedBytesAvailable= (int) compressor.TotalBytesOut;
            return true;
        }