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 ; }