/*********************************************************
Decompress Method
*********************************************************/
int Compression::decompress(void *dest, int destLen, int sourceLen)
{
void *source = getBuf();
int compressingMethod = gConfig->networkCompression;
uLongf newSource = sourceLen;
uLongf newDest = destLen;
int ret = 0;
if(sourceLen > 4) {
if(compressingMethod == 1)
ret = uncompress((Bytef*) dest, (uLongf*) &newDest, (const Bytef*)source, newSource);
else if(compressingMethod == 2)
ret = lzo1b_decompress((const Bytef*)source, newSource, (Bytef*) dest, &newDest, NULL);
else if(compressingMethod == 3)
ret = lzo1x_decompress((const Bytef*)source, newSource, (Bytef*) dest, &newDest, NULL);
if(compressingMethod == 1) {
if(ret != Z_OK) {
if(ret == Z_MEM_ERROR){
LOG("ERROR decompressing: memory error\n");
}else if(ret == Z_BUF_ERROR){
LOG("ERROR decompressing: buffer error\n");
}else if(ret == Z_DATA_ERROR){
LOG("ERROR decompressing: data error,\n");
}
}
}
}
else {
memcpy(dest, source, sourceLen);
}
return (int)newDest;
}
int64_t lzbench_lzo1b_decompress(char *inbuf, size_t insize, char *outbuf, size_t outsize, size_t level, size_t, char*)
{
lzo_uint decomplen = 0;
if (lzo1b_decompress((uint8_t*)inbuf, insize, (uint8_t*)outbuf, &decomplen, NULL) != LZO_E_OK) return 0;
return decomplen;
}
int64_t lzbench_lzo_decompress(char *inbuf, size_t insize, char *outbuf, size_t outsize, size_t level, size_t, size_t)
{
lzo_uint decomplen = 0;
switch (level)
{
default:
case 1:
case 9:
case 99:
case 999:
if (lzo1b_decompress((uint8_t*)inbuf, insize, (uint8_t*)outbuf, &decomplen, NULL) != LZO_E_OK) return 0;
break;
case 1001:
case 1009:
case 1099:
case 1999:
if (lzo1c_decompress((uint8_t*)inbuf, insize, (uint8_t*)outbuf, &decomplen, NULL) != LZO_E_OK) return 0;
break;
case 2001:
case 2999:
if (lzo1f_decompress((uint8_t*)inbuf, insize, (uint8_t*)outbuf, &decomplen, NULL) != LZO_E_OK) return 0;
break;
case 3001:
case 3999:
if (lzo1x_decompress((uint8_t*)inbuf, insize, (uint8_t*)outbuf, &decomplen, NULL) != LZO_E_OK) return 0;
break;
case 4001:
case 4999:
if (lzo1y_decompress((uint8_t*)inbuf, insize, (uint8_t*)outbuf, &decomplen, NULL) != LZO_E_OK) return 0;
break;
case 5999:
if (lzo1z_decompress((uint8_t*)inbuf, insize, (uint8_t*)outbuf, &decomplen, NULL) != LZO_E_OK) return 0;
break;
case 6999:
if (lzo2a_decompress((uint8_t*)inbuf, insize, (uint8_t*)outbuf, &decomplen, NULL) != LZO_E_OK) return 0;
break;
}
return decomplen;
}
