static void __comp_fetch_init(void)
{
char *ptr = NULL;
int i;
#ifdef USE_SLZ
slz_make_crc_table();
slz_prepare_dist_table();
#endif
#if defined(USE_ZLIB) && defined(DEFAULT_MAXZLIBMEM)
global.maxzlibmem = DEFAULT_MAXZLIBMEM * 1024U * 1024U;
#endif
#ifdef USE_ZLIB
HA_SPIN_INIT(&comp_pool_lock);
memprintf(&ptr, "Built with zlib version : " ZLIB_VERSION);
memprintf(&ptr, "%s\nRunning on zlib version : %s", ptr, zlibVersion());
#elif defined(USE_SLZ)
memprintf(&ptr, "Built with libslz for stateless compression.");
#else
memprintf(&ptr, "Built without compression support (neither USE_ZLIB nor USE_SLZ are set).");
#endif
memprintf(&ptr, "%s\nCompression algorithms supported :", ptr);
for (i = 0; comp_algos[i].cfg_name; i++)
memprintf(&ptr, "%s%s %s(\"%s\")", ptr, (i == 0 ? "" : ","), comp_algos[i].cfg_name, comp_algos[i].ua_name);
if (i == 0)
memprintf(&ptr, "%s none", ptr);
hap_register_build_opts(ptr, 1);
cfg_register_keywords(&cfg_kws);
}
int slz_deflate(
unsigned char *dest,
unsigned long *destLen,
const unsigned char *source,
unsigned long sourceLen,
int level
){
if(!slz_initialized){
slz_prepare_dist_table();
slz_initialized=true;
}
struct slz_stream strm;
slz_init(&strm, level, SLZ_FMT_DEFLATE);
*destLen=slz_encode(&strm,dest,source,sourceLen,0);
*destLen+=slz_finish(&strm,dest+*destLen);
return Z_OK;
}