void ServiceContextMongoDTest::setUp() {
Client::initThread(getThreadName());
auto const serviceContext = getServiceContext();
auto logicalClock = stdx::make_unique<LogicalClock>(serviceContext);
LogicalClock::set(serviceContext, std::move(logicalClock));
if (!serviceContext->getGlobalStorageEngine()) {
// When using the "ephemeralForTest" storage engine, it is fine for the temporary directory
// to go away after the global storage engine is initialized.
unittest::TempDir tempDir("service_context_d_test_fixture");
storageGlobalParams.dbpath = tempDir.path();
storageGlobalParams.engine = "ephemeralForTest";
storageGlobalParams.engineSetByUser = true;
checked_cast<ServiceContextMongoD*>(serviceContext)->createLockFile();
serviceContext->initializeGlobalStorageEngine();
serviceContext->setOpObserver(stdx::make_unique<OpObserverNoop>());
}
// Set up UUID Catalog observer. This is necessary because the Collection destructor contains an
// invariant to ensure the UUID corresponding to that Collection object is no longer associated
// with that Collection object in the UUIDCatalog. UUIDs may be registered in the UUIDCatalog
// directly in certain code paths, but they can only be removed from the UUIDCatalog via a
// UUIDCatalogObserver. It is therefore necessary to install the observer to ensure the
// invariant in the Collection destructor is not triggered.
auto observerRegistry = stdx::make_unique<OpObserverRegistry>();
observerRegistry->addObserver(stdx::make_unique<UUIDCatalogObserver>());
serviceContext->setOpObserver(std::unique_ptr<OpObserver>(observerRegistry.release()));
}
std::unique_ptr<OperationContext> ServiceContextMongoD::_newOpCtx(Client* client, unsigned opId) {
invariant(&cc() == client);
auto opCtx = stdx::make_unique<OperationContext>(client, opId);
if (isMMAPV1()) {
opCtx->setLockState(stdx::make_unique<MMAPV1LockerImpl>());
} else {
opCtx->setLockState(stdx::make_unique<DefaultLockerImpl>());
}
opCtx->setRecoveryUnit(getGlobalStorageEngine()->newRecoveryUnit(),
OperationContext::kNotInUnitOfWork);
return opCtx;
}
