void IDBTransaction::finished() {
#if DCHECK_IS_ON()
DCHECK(!m_finishCalled);
m_finishCalled = true;
#endif // DCHECK_IS_ON()
m_database->transactionFinished(this);
// Remove references to the IDBObjectStore and IDBIndex instances held by
// this transaction, so Oilpan can garbage-collect the instances that aren't
// used by JavaScript.
for (auto& it : m_objectStoreMap) {
IDBObjectStore* objectStore = it.value;
if (!isVersionChange() || objectStore->isNewlyCreated()) {
DCHECK(!m_oldStoreMetadata.contains(objectStore));
objectStore->clearIndexCache();
} else {
// We'll call clearIndexCache() on this store in the loop below.
DCHECK(m_oldStoreMetadata.contains(objectStore));
}
}
m_objectStoreMap.clear();
for (auto& it : m_oldStoreMetadata) {
IDBObjectStore* objectStore = it.key;
objectStore->clearIndexCache();
}
m_oldStoreMetadata.clear();
m_deletedIndexes.clear();
m_deletedObjectStores.clear();
}
IDBObjectStore* IDBTransaction::objectStore(const String& name,
ExceptionState& exceptionState) {
if (isFinished()) {
exceptionState.throwDOMException(
InvalidStateError, IDBDatabase::transactionFinishedErrorMessage);
return nullptr;
}
IDBObjectStoreMap::iterator it = m_objectStoreMap.find(name);
if (it != m_objectStoreMap.end())
return it->value;
if (!isVersionChange() && !m_scope.contains(name)) {
exceptionState.throwDOMException(
NotFoundError, IDBDatabase::noSuchObjectStoreErrorMessage);
return nullptr;
}
int64_t objectStoreId = m_database->findObjectStoreId(name);
if (objectStoreId == IDBObjectStoreMetadata::InvalidId) {
DCHECK(isVersionChange());
exceptionState.throwDOMException(
NotFoundError, IDBDatabase::noSuchObjectStoreErrorMessage);
return nullptr;
}
DCHECK(m_database->metadata().objectStores.contains(objectStoreId));
RefPtr<IDBObjectStoreMetadata> objectStoreMetadata =
m_database->metadata().objectStores.get(objectStoreId);
DCHECK(objectStoreMetadata.get());
IDBObjectStore* objectStore =
IDBObjectStore::create(std::move(objectStoreMetadata), this);
DCHECK(!m_objectStoreMap.contains(name));
m_objectStoreMap.set(name, objectStore);
if (isVersionChange()) {
DCHECK(!objectStore->isNewlyCreated())
<< "Object store IDs are not assigned sequentially";
RefPtr<IDBObjectStoreMetadata> backupMetadata =
objectStore->metadata().createCopy();
m_oldStoreMetadata.set(objectStore, std::move(backupMetadata));
}
return objectStore;
}