Fast gzip deflate for small files

fastgzdeflate

-(NSData*)gzDeflate
{
	/// Max decompressed data size : 128Kb
	/// Feel free to increase it to suit your needs
	unsigned char outt[131072];
	z_stream strm = (z_stream){.zalloc = Z_NULL, .zfree = Z_NULL, .opaque = Z_NULL, .avail_in = [self length], .next_in = (Bytef*)[self bytes], .avail_out = 131072, .next_out = outt};

	if (inflateInit2(&strm, (15 + 16)) != Z_OK)
		return nil;

	int ret = inflate(&strm, Z_NO_FLUSH);
	if (ret != Z_STREAM_END && ret != Z_OK)
	{
		inflateEnd(&strm);
		return nil;
	}
	return [NSData dataWithBytes:outt length:strm.total_out];
}