Cache(fptr_t arg)
: fptr(arg),
internal_cache(),
internal_it(internal_cache.begin()),
cache(),
cache_it(cache.begin())
{ }
void eraseExpired()
{
F64 now = LLFrameTimer::getTotalSeconds();
cache_t::iterator it = sCache.begin();
while (it != sCache.end())
{
cache_t::iterator cur = it;
LLSD& exp = cur->second;
++it;
if(exp.has(EXPIRES) && exp[EXPIRES].asReal() < now)
{
if(!exp.has(EXPERIENCE_ID))
{
LL_WARNS("ExperienceCache") << "Removing experience with no id " << LL_ENDL ;
sCache.erase(cur);
}
else
{
LLUUID id = exp[EXPERIENCE_ID].asUUID();
LLUUID private_key = exp.has(LLExperienceCache::PRIVATE_KEY) ? exp[LLExperienceCache::PRIVATE_KEY].asUUID():LLUUID::null;
if(private_key.notNull() || !exp.has("DoesNotExist"))
{
fetch(id, true);
}
else
{
LL_WARNS("ExperienceCache") << "Removing invalid experience " << id << LL_ENDL ;
sCache.erase(cur);
}
}
}
}
}
typename std::enable_if<(sizeof...(Args), std::is_same<cache_t, cache_vector_t>::value) && tp == timeout_policy_t::NEVER, std::remove_const_t<std::decay_t<R>>>::type
const& call(Args const&... args)
{
decayed_key_t new_keys(getKey(args)...);
auto&& it(cache.find(new_keys));
if (it == cache.end()) // not cached
{
if (cache.size() == LRU_MAX) // cache is full, time to overwrite old objects
{
if (internal_it == internal_cache.end())
{
assert(cache_it == cache.end());
internal_it = internal_cache.begin();
cache_it = cache.begin();
}
*internal_it = fptr(args...);
cache.erase(cache_it);
cache.insert(cache_it, std::pair<key_t, internal_cache_it_t>(new_keys, internal_it));
++cache_it;
return *internal_it++;
}
else
{
// Maybe emplace_back
internal_cache.push_back(fptr(args...));
cache[new_keys] = internal_cache.end();
return internal_cache.back();
}
}
else // was cached
return *it->second;
};
void exportFile(std::ostream& ostr)
{
LLSD experiences;
cache_t::const_iterator it =sCache.begin();
for( ; it != sCache.end() ; ++it)
{
if(!it->second.has(EXPERIENCE_ID) || it->second[EXPERIENCE_ID].asUUID().isNull() ||
it->second.has("DoesNotExist") || (it->second.has(PROPERTIES) && it->second[PROPERTIES].asInteger() & PROPERTY_INVALID))
continue;
experiences[it->first.asString()] = it->second;
}
LLSD data;
data["experiences"] = experiences;
LLSDSerialize::toPrettyXML(data, ostr);
}
