void LLVOCache::readFromCache(U64 handle, const LLUUID& id, LLVOCacheEntry::vocache_entry_map_t& cache_entry_map)
{
llassert_always(mInitialized);
handle_entry_map_t::iterator iter = mHandleEntryMap.find(handle) ;
if(iter == mHandleEntryMap.end()) //no cache
{
return ;
}
std::string filename;
getObjectCacheFilename(handle, filename);
LLAPRFile* apr_file = new LLAPRFile(filename, APR_READ|APR_BINARY, mLocalAPRFilePoolp);
LLUUID cache_id ;
if(!checkRead(apr_file, cache_id.mData, UUID_BYTES))
{
return ;
}
if(cache_id != id)
{
llinfos << "Cache ID doesn't match for this region, discarding"<< llendl;
delete apr_file ;
return ;
}
S32 num_entries;
if(!checkRead(apr_file, &num_entries, sizeof(S32)))
{
return ;
}
for (S32 i = 0; i < num_entries; i++)
{
LLVOCacheEntry* entry = new LLVOCacheEntry(apr_file);
if (!entry->getLocalID())
{
llwarns << "Aborting cache file load for " << filename << ", cache file corruption!" << llendl;
delete entry ;
break;
}
cache_entry_map[entry->getLocalID()] = entry;
}
num_entries = cache_entry_map.size() ;
delete apr_file ;
return ;
}
void LLVOCache::readFromCache(U64 handle, const LLUUID& id, LLVOCacheEntry::vocache_entry_map_t& cache_entry_map)
{
if(!mEnabled)
{
llwarns << "Not reading cache for handle " << handle << "): Cache is currently disabled." << llendl;
return ;
}
llassert_always(mInitialized);
handle_entry_map_t::iterator iter = mHandleEntryMap.find(handle) ;
if(iter == mHandleEntryMap.end()) //no cache
{
llwarns << "No handle map entry for " << handle << llendl;
return ;
}
bool success = true ;
{
std::string filename;
getObjectCacheFilename(handle, filename);
LLAPRFile apr_file(filename, APR_READ|APR_BINARY, mLocalAPRFilePoolp);
LLUUID cache_id ;
success = check_read(&apr_file, cache_id.mData, UUID_BYTES) ;
if(success)
{
if(cache_id != id)
{
llinfos << "Cache ID doesn't match for this region, discarding"<< llendl;
success = false ;
}
if(success)
{
S32 num_entries;
success = check_read(&apr_file, &num_entries, sizeof(S32)) ;
for (S32 i = 0; success && i < num_entries; i++)
{
LLVOCacheEntry* entry = new LLVOCacheEntry(&apr_file);
if (!entry->getLocalID())
{
llwarns << "Aborting cache file load for " << filename << ", cache file corruption!" << llendl;
delete entry ;
success = false ;
}
cache_entry_map[entry->getLocalID()] = entry;
}
}
}
}
if(!success)
{
if(cache_entry_map.empty())
{
removeEntry(iter->second) ;
}
}
return ;
}