本文整理汇总了C++中NamespaceString::isOplog方法的典型用法代码示例。如果您正苦于以下问题：C++ NamespaceString::isOplog方法的具体用法？C++ NamespaceString::isOplog怎么用？C++ NamespaceString::isOplog使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类NamespaceString的用法示例。
在下文中一共展示了NamespaceString::isOplog方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: generateNextPrefix
/* static */ KVPrefix KVPrefix::getNextPrefix(const NamespaceString& ns) {
if (!storageGlobalParams.groupCollections || ns.isOplog()) {
return kNotPrefixed;
}
return generateNextPrefix();
}示例2: emptyCapped
mongo::Status mongo::emptyCapped(OperationContext* opCtx, const NamespaceString& collectionName) {
AutoGetDb autoDb(opCtx, collectionName.db(), MODE_X);
bool userInitiatedWritesAndNotPrimary = opCtx->writesAreReplicated() &&
!repl::ReplicationCoordinator::get(opCtx)->canAcceptWritesFor(opCtx, collectionName);
if (userInitiatedWritesAndNotPrimary) {
return Status(ErrorCodes::NotMaster,
str::stream() << "Not primary while truncating collection: "
<< collectionName.ns());
}
Database* db = autoDb.getDb();
uassert(ErrorCodes::NamespaceNotFound, "no such database", db);
Collection* collection = db->getCollection(opCtx, collectionName);
uassert(ErrorCodes::CommandNotSupportedOnView,
str::stream() << "emptycapped not supported on view: " << collectionName.ns(),
collection || !db->getViewCatalog()->lookup(opCtx, collectionName.ns()));
uassert(ErrorCodes::NamespaceNotFound, "no such collection", collection);
if (collectionName.isSystem() && !collectionName.isSystemDotProfile()) {
return Status(ErrorCodes::IllegalOperation,
str::stream() << "Cannot truncate a system collection: "
<< collectionName.ns());
}
if (collectionName.isVirtualized()) {
return Status(ErrorCodes::IllegalOperation,
str::stream() << "Cannot truncate a virtual collection: "
<< collectionName.ns());
}
if ((repl::ReplicationCoordinator::get(opCtx)->getReplicationMode() !=
repl::ReplicationCoordinator::modeNone) &&
collectionName.isOplog()) {
return Status(ErrorCodes::OplogOperationUnsupported,
str::stream() << "Cannot truncate a live oplog while replicating: "
<< collectionName.ns());
}
BackgroundOperation::assertNoBgOpInProgForNs(collectionName.ns());
WriteUnitOfWork wuow(opCtx);
Status status = collection->truncate(opCtx);
if (!status.isOK()) {
return status;
}
getGlobalServiceContext()->getOpObserver()->onEmptyCapped(
opCtx, collection->ns(), collection->uuid());
wuow.commit();
return Status::OK();
}示例3: _checkCanCreateCollection
void Database::_checkCanCreateCollection(const NamespaceString& nss,
const CollectionOptions& options) {
massert(17399, "collection already exists", getCollection(nss.ns()) == nullptr);
massertNamespaceNotIndex(nss.ns(), "createCollection");
uassert(14037,
"can't create user databases on a --configsvr instance",
serverGlobalParams.clusterRole != ClusterRole::ConfigServer || nss.isOnInternalDb());
// This check only applies for actual collections, not indexes or other types of ns.
uassert(17381,
str::stream() << "fully qualified namespace " << nss.ns() << " is too long "
<< "(max is "
<< NamespaceString::MaxNsCollectionLen
<< " bytes)",
!nss.isNormal() || nss.size() <= NamespaceString::MaxNsCollectionLen);
uassert(17316, "cannot create a blank collection", nss.coll() > 0);
uassert(28838, "cannot create a non-capped oplog collection", options.capped || !nss.isOplog());
}