MojErr MojDbSearchCursor::loadIds(ObjectSet& idsOut)
{
LOG_TRACE("Entering function %s", __FUNCTION__);
MojUInt32 groupNum = 0;
bool found = false;
MojSharedPtr<ObjectSet> group;
GroupMap groupMap;
for(;;) {
// get current id
MojObject id;
MojUInt32 idGroupNum = 0;
MojErr err = m_storageQuery->getId(id, idGroupNum, found);
MojErrCheck(err);
if (!found)
break;
// if it is in a new group, create a new set
if (!group.get() || idGroupNum != groupNum) {
// find/create new group
GroupMap::Iterator iter;
err = groupMap.find(idGroupNum, iter);
MojErrCheck(err);
if (iter != groupMap.end()) {
group = iter.value();
} else {
err = group.resetChecked(new ObjectSet);
MojErrCheck(err);
err = groupMap.put(idGroupNum, group);
MojErrCheck(err);
}
groupNum = idGroupNum;
}
// add id to current set
err = group->put(id);
MojErrCheck(err);
}
// no matches unless all groups are accounted for
MojUInt32 groupCount = m_storageQuery->groupCount();
for (MojUInt32 i = 0; i < groupCount; ++i) {
if (!groupMap.contains(i))
return MojErrNone;
}
// find intersection of all groups
GroupMap::ConstIterator begin = groupMap.begin();
for (GroupMap::ConstIterator i = begin; i != groupMap.end(); ++i) {
if (i == begin) {
// special handling for first group
idsOut = *(i.value());
} else {
MojErr err = idsOut.intersect(*(i.value()));
MojErrCheck(err);
}
}
return MojErrNone;
}
MojDbLevelTableTxn &MojDbLevelEnvTxn::tableTxn(leveldb::DB *db)
{
// find within opened already
for(TableTxns::iterator it = m_tableTxns.begin();
it != m_tableTxns.end();
++it)
{
if ((*it)->db() == db) return *(*it);
}
// create new
MojSharedPtr<MojDbLevelTableTxn> txn;
txn.reset(new MojDbLevelTableTxn());
txn->begin(db);
m_tableTxns.push_back(txn);
return *txn;
}
static MojErr takeFooShared(MojSharedPtr<FooTest> p)
{
MojTestAssert(p.get());
return MojErrNone;
}
static MojSharedPtr<FooTest> makeFooShared()
{
MojSharedPtr<FooTest> p;
(void) p.reset(new FooTest);
return p;
}