private void DecompressBlock(IBuffer inputBlock, int number, IBuffer outputBlock, int outputBlockSize)
{
using (var gzipStream = new GZipStream(inputBlock.ToStream(), CompressionMode.Decompress, true))
{
outputBlock.FillFrom(gzipStream, outputBlockSize);
}
inputBlock.Return();
blockStreamWriter.Enqueue(outputBlock, number);
}
private void CompressBlock(IBuffer inputBlock, int number, IBuffer outputBlock)
{
const int prefix = sizeof(int);
var stream = outputBlock.ToStream();
stream.Position = prefix;
using (var gzipStream = new GZipStream(stream, CompressionMode.Compress, true))
{
gzipStream.Write(inputBlock.ToSpan());
}
stream.Position = 0;
stream.Write(BitConverter.GetBytes((int)stream.Length - prefix));
logger.Debug($"{nameof(CompressOperationExecutor)}. Block {number}: input size {stream.Length}, output size {stream.Length - 4}");
inputBlock.Return();
blockStreamWriter.Enqueue(outputBlock, number);
}
