bool MMAPV1DatabaseCatalogEntry::isOlderThan24(OperationContext* opCtx) const {
if (_extentManager->numFiles() == 0)
return false;
const DataFileVersion version = _extentManager->getFileFormat(opCtx);
fassert(40109, version.isCompatibleWithCurrentCode());
return !version.is24IndexClean();
}
void MMAPV1DatabaseCatalogEntry::markCollationFeatureAsInUse(OperationContext* opCtx) {
if (_extentManager->numFiles() == 0)
return;
DataFileVersion version = _extentManager->getFileFormat(opCtx);
fassert(40150, version.isCompatibleWithCurrentCode());
if (version.getMayHaveCollationMetadata())
return;
version.setMayHaveCollationMetadata();
_extentManager->setFileFormat(opCtx, version);
}
void MMAPV1DatabaseCatalogEntry::markIndexSafe24AndUp(OperationContext* opCtx) {
if (_extentManager->numFiles() == 0)
return;
DataFileVersion version = _extentManager->getFileFormat(opCtx);
fassert(40110, version.isCompatibleWithCurrentCode());
if (version.is24IndexClean())
return; // nothing to do
version.setIs24IndexClean();
_extentManager->setFileFormat(opCtx, version);
}
void MMAPV1DatabaseCatalogEntry::_init(OperationContext* txn) {
WriteUnitOfWork wunit(txn);
// Upgrade freelist
const NamespaceString oldFreeList(name(), "$freelist");
NamespaceDetails* freeListDetails = _namespaceIndex.details(oldFreeList.ns());
if (freeListDetails) {
if (!freeListDetails->firstExtent.isNull()) {
_extentManager.freeExtents(
txn, freeListDetails->firstExtent, freeListDetails->lastExtent);
}
_namespaceIndex.kill_ns(txn, oldFreeList.ns());
}
DataFileVersion version = _extentManager.getFileFormat(txn);
if (version.isCompatibleWithCurrentCode() && !version.mayHave28Freelist()) {
// Any DB that can be opened and written to gets this flag set.
version.setMayHave28Freelist();
_extentManager.setFileFormat(txn, version);
}
const NamespaceString nsi(name(), "system.indexes");
const NamespaceString nsn(name(), "system.namespaces");
bool isSystemNamespacesGoingToBeNew = _namespaceIndex.details(nsn.toString()) == NULL;
bool isSystemIndexesGoingToBeNew = _namespaceIndex.details(nsi.toString()) == NULL;
_ensureSystemCollection(txn, nsn.toString());
_ensureSystemCollection(txn, nsi.toString());
if (isSystemNamespacesGoingToBeNew) {
txn->recoveryUnit()->registerChange(new EntryInsertion(nsn.toString(), this));
}
if (isSystemIndexesGoingToBeNew) {
txn->recoveryUnit()->registerChange(new EntryInsertion(nsi.toString(), this));
}
Entry*& indexEntry = _collections[nsi.toString()];
Entry*& nsEntry = _collections[nsn.toString()];
NamespaceDetails* const indexDetails = _namespaceIndex.details(nsi.toString());
NamespaceDetails* const nsDetails = _namespaceIndex.details(nsn.toString());
// order has to be:
// 1) ns rs
// 2) i rs
// 3) catalog entries
if (!nsEntry) {
nsEntry = new Entry();
NamespaceDetailsRSV1MetaData* md =
new NamespaceDetailsRSV1MetaData(nsn.toString(), nsDetails);
nsEntry->recordStore.reset(
new SimpleRecordStoreV1(txn, nsn.toString(), md, &_extentManager, false));
}
if (!indexEntry) {
indexEntry = new Entry();
NamespaceDetailsRSV1MetaData* md =
new NamespaceDetailsRSV1MetaData(nsi.toString(), indexDetails);
indexEntry->recordStore.reset(
new SimpleRecordStoreV1(txn, nsi.toString(), md, &_extentManager, true));
}
RecordId indexNamespaceId;
if (isSystemIndexesGoingToBeNew) {
indexNamespaceId = _addNamespaceToNamespaceCollection(txn, nsi.toString(), NULL);
}
if (!nsEntry->catalogEntry) {
nsEntry->catalogEntry.reset(
new NamespaceDetailsCollectionCatalogEntry(nsn.toString(),
nsDetails,
nsEntry->recordStore.get(),
RecordId(),
indexEntry->recordStore.get(),
this));
}
if (!indexEntry->catalogEntry) {
indexEntry->catalogEntry.reset(
new NamespaceDetailsCollectionCatalogEntry(nsi.toString(),
indexDetails,
nsEntry->recordStore.get(),
indexNamespaceId,
indexEntry->recordStore.get(),
this));
}
wunit.commit();
// Now put everything in the cache of namespaces. None of the operations below do any
// transactional operations.
RecordStoreV1Base* rs = _getNamespaceRecordStore();
invariant(rs);
auto cursor = rs->getCursor(txn);
while (auto record = cursor->next()) {
auto ns = record->data.releaseToBson()["name"].String();
Entry*& entry = _collections[ns];
// The two cases where entry is not null is for system.indexes and system.namespaces,
// which we manually instantiated above. It is OK to skip these two collections,
// because they don't have indexes on them anyway.
if (entry) {
if (entry->catalogEntry->getNamespacesRecordId().isNull()) {
entry->catalogEntry->setNamespacesRecordId(record->id);
} else {
invariant(entry->catalogEntry->getNamespacesRecordId() == record->id);
}
continue;
}
entry = new Entry();
_insertInCache(txn, ns, record->id, entry);
}
}