MojErr MojDbIndex::notifyWatches(const KeySet& keys, MojDbStorageTxn* txn) { LOG_TRACE("Entering function %s", __FUNCTION__); MojAssert(txn); MojThreadReadGuard guard(m_lock); for (KeySet::ConstIterator i = keys.begin(); i != keys.end(); ++i) { MojErr err = notifyWatches(*i, txn); MojErrCheck(err); } return MojErrNone; }
MojErr MojDbIndex::notifyWatches(const KeySet& keys, MojDbStorageTxn* txn) { MojAssert(txn); MojLogTrace(s_log); MojThreadReadGuard guard(m_lock); for (KeySet::ConstIterator i = keys.begin(); i != keys.end(); ++i) { MojErr err = notifyWatches(*i, txn); MojErrCheck(err); } return MojErrNone; }
MojErr MojDbIndex::update(const MojObject* newObj, const MojObject* oldObj, MojDbStorageTxn* txn, bool forcedel) { LOG_TRACE("Entering function %s", __FUNCTION__); MojAssert(isOpen()); MojAssert(newObj || oldObj); // figure out which versions we include bool includeOld = includeObj(oldObj); bool includeNew = includeObj(newObj); if (includeNew && !includeOld) { // we include the new but not the old, so just put all the new keys MojAssert(newObj); KeySet newKeys; MojErr err = getKeys(*newObj, newKeys); MojErrCheck(err); err = insertKeys(newKeys, txn); MojErrCheck(err); err = notifyWatches(newKeys, txn); MojErrCheck(err); LOG_DEBUG("[db_mojodb] IndexAdd: %s; Keys= %zu \n", this->m_name.data(), newKeys.size()); } else if (includeOld && !includeNew) { // we include the old but not the new objects, so del all the old keys MojAssert(oldObj); KeySet oldKeys; MojErr err = getKeys(*oldObj, oldKeys); MojErrCheck(err); err = delKeys(oldKeys, txn, forcedel); MojErrCheck(err); err = notifyWatches(oldKeys, txn); MojErrCheck(err); LOG_DEBUG("[db_mojodb] IndexDel: %s; Keys= %zu \n", this->name().data(), oldKeys.size()); } else if (includeNew && includeOld) { // we include old and new objects MojAssert(newObj && oldObj); KeySet newKeys; MojErr err = getKeys(*newObj, newKeys); MojErrCheck(err); KeySet oldKeys; err = getKeys(*oldObj, oldKeys); MojErrCheck(err); // we need to put the keys that are in the new set, but not in the old KeySet keysToPut; err = newKeys.diff(oldKeys, keysToPut); MojErrCheck(err); // we need to del the keys that are in the old set, but not in the new KeySet keysToDel; err = oldKeys.diff(newKeys, keysToDel); MojErrCheck(err); err = insertKeys(keysToPut, txn); MojErrCheck(err); err = delKeys(keysToDel, txn, forcedel); LOG_DEBUG("[db_mojodb] IndexMerge: %s; OldKeys= %zu; NewKeys= %zu; Dropped= %zu; Added= %zu ; err = %d\n", this->name().data(), oldKeys.size(), newKeys.size(), keysToDel.size(), keysToPut.size(), (int)err); MojErrCheck(err); // notify on union of old and new keys err = newKeys.put(oldKeys); MojErrCheck(err); err = notifyWatches(newKeys, txn); MojErrCheck(err); } return MojErrNone; }