本文整理汇总了C++中WorkingSet::transitionToRecordIdAndObj方法的典型用法代码示例。如果您正苦于以下问题：C++ WorkingSet::transitionToRecordIdAndObj方法的具体用法？C++ WorkingSet::transitionToRecordIdAndObj怎么用？C++ WorkingSet::transitionToRecordIdAndObj使用的例子？那么恭喜您, 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WorkingSet的用法示例。
在下文中一共展示了WorkingSet::transitionToRecordIdAndObj方法的1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: run
void run() {
dbtests::WriteContextForTests ctx(&_opCtx, ns());
Database* db = ctx.db();
Collection* coll = db->getCollection(&_opCtx, ns());
if (!coll) {
WriteUnitOfWork wuow(&_opCtx);
coll = db->createCollection(&_opCtx, ns());
wuow.commit();
}
WorkingSet ws;
// Add an object to the DB.
insert(BSON("foo" << 5));
set<RecordId> recordIds;
getRecordIds(&recordIds, coll);
ASSERT_EQUALS(size_t(1), recordIds.size());
// Create a mock stage that returns the WSM.
auto mockStage = make_unique<QueuedDataStage>(&_opCtx, &ws);
// Mock data.
{
WorkingSetID id = ws.allocate();
WorkingSetMember* mockMember = ws.get(id);
mockMember->recordId = *recordIds.begin();
mockMember->obj = coll->docFor(&_opCtx, mockMember->recordId);
ws.transitionToRecordIdAndObj(id);
// Points into our DB.
mockStage->pushBack(id);
}
{
WorkingSetID id = ws.allocate();
WorkingSetMember* mockMember = ws.get(id);
mockMember->recordId = RecordId();
mockMember->obj = Snapshotted<BSONObj>(SnapshotId(), BSON("foo" << 6));
mockMember->transitionToOwnedObj();
ASSERT_TRUE(mockMember->obj.value().isOwned());
mockStage->pushBack(id);
}
unique_ptr<FetchStage> fetchStage(
new FetchStage(&_opCtx, &ws, mockStage.release(), NULL, coll));
WorkingSetID id = WorkingSet::INVALID_ID;
PlanStage::StageState state;
// Don't bother doing any fetching if an obj exists already.
state = fetchStage->work(&id);
ASSERT_EQUALS(PlanStage::ADVANCED, state);
state = fetchStage->work(&id);
ASSERT_EQUALS(PlanStage::ADVANCED, state);
// No more data to fetch, so, EOF.
state = fetchStage->work(&id);
ASSERT_EQUALS(PlanStage::IS_EOF, state);
}