void Controller::handlePut(Key& key, shared_ptr<Value> value,
const Requirements& requirements) {
Condition condition = prepareCondition(key, value->getSize(), requirements);
{
lock_guard<mutex> gurad(infoLock);
info[key] = KeyInfo{make_unique<Requirements>(requirements),
value->getSize()};
}
double estimatedCost;
Choice* choice = decider->choose(condition, &estimatedCost);
if (choice == nullptr) {
throw NoChoiceAvailableException();
}
accountant->recordEstimate(estimatedCost);
accountant->recordPut(choice->getId(), value->getSize());
storeInto(key, value, *choice, requirements);
choice_id old_choice_id = memory->remember(key, choice->getId());
if (old_choice_id != 0) {
auto it = choices.find(old_choice_id);
assert(it != choices.end());
Choice& old_choice = it->second;
old_choice.getActor()->del(key, old_choice.getProfile());
}
estimator->notifyPut(key, requirements);
if (enableStat) {
stat->notifyPut(key);
}
}
void Controller::checkMigration(Key& key, const Choice& current,
bool extraGet, shared_ptr<Value> valueGot) {
Requirements requirements;
size_t size;
{
lock_guard<mutex> guard(infoLock);
if (info.count(key) == 0) return;
requirements = *info[key].requirements.get();
size = info[key].size;
}
Condition condition = prepareCondition(key, size, requirements);
double estimatedCost;
Choice* choice = decider->findBetter(condition, current, extraGet,
&estimatedCost);
if (choice != nullptr) {
Dbg() << "migrating from " << current.desc() << " to " << choice->desc() << endl;
shared_ptr<Value> value;
Requirements migrateRequirements;
if (extraGet) {
value = current.getActor()->get(key, current.getProfile());
} else {
value = valueGot;
}
storeInto(key, value, *choice, requirements);
choice_id old_id = memory->remember(key, choice->getId());
deleteFrom(key, current);
accountant->recordMigrate(current.getId(), choice->getId(), size,
extraGet);
}
}
