Exemplo n.º 1
0
IDBError MemoryObjectStore::addRecord(MemoryBackingStoreTransaction& transaction, const IDBKeyData& keyData, const IDBValue& value)
{
    LOG(IndexedDB, "MemoryObjectStore::addRecord");

    ASSERT(m_writeTransaction);
    ASSERT_UNUSED(transaction, m_writeTransaction == &transaction);
    ASSERT(!m_keyValueStore || !m_keyValueStore->contains(keyData));
    ASSERT(!m_orderedKeys || m_orderedKeys->find(keyData) == m_orderedKeys->end());

    if (!m_keyValueStore) {
        ASSERT(!m_orderedKeys);
        m_keyValueStore = std::make_unique<KeyValueMap>();
        m_orderedKeys = std::make_unique<std::set<IDBKeyData>>();
    }

    auto mapResult = m_keyValueStore->set(keyData, value.data());
    ASSERT(mapResult.isNewEntry);
    auto listResult = m_orderedKeys->insert(keyData);
    ASSERT(listResult.second);

    // If there was an error indexing this addition, then revert it.
    auto error = updateIndexesForPutRecord(keyData, value.data());
    if (!error.isNull()) {
        m_keyValueStore->remove(mapResult.iterator);
        m_orderedKeys->erase(listResult.first);
    } else
        updateCursorsForPutRecord(listResult.first);

    return error;
}
static JSValue deserializeIDBValueToJSValue(ExecState& state, JSC::JSGlobalObject& globalObject, const IDBValue& value)
{
    // FIXME: I think it's peculiar to use undefined to mean "null data" and null to mean "empty data".
    // But I am not changing this at the moment because at least some callers are specifically checking isUndefined.

    if (!value.data().data())
        return jsUndefined();

    auto& data = *value.data().data();
    if (data.isEmpty())
        return jsNull();

    auto serializedValue = SerializedScriptValue::createFromWireBytes(Vector<uint8_t>(data));

    state.vm().apiLock().lock();
    Vector<RefPtr<MessagePort>> messagePorts;
    JSValue result = serializedValue->deserialize(state, &globalObject, messagePorts, value.blobURLs(), value.sessionID(), value.blobFilePaths(), SerializationErrorMode::NonThrowing);
    state.vm().apiLock().unlock();

    return result;
}