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Merge the expire datastructs on endsnapshot

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Former-commit-id: 968681ac37d1505a7b38628425f60e08b2cd41c4
This commit is contained in:
John Sully 2019-12-16 20:13:19 -05:00
parent 7e55564409
commit d44dc77ca2
1 changed files with 12 additions and 6 deletions
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18
src/snapshot.cpp
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@ -183,30 +183,36 @@ void redisDbPersistentData::endSnapshot(const redisDbPersistentDataSnapshot *psn
di = dictGetIterator(m_pdict);
while ((de = dictNext(di)) != NULL)
{
robj *o = (robj*)dictGetVal(de);
dictEntry *deExisting = dictFind(m_spdbSnapshotHOLDER->m_pdict, (const char*)dictGetKey(de));
if (deExisting != nullptr)
{
if (dictGetVal(deExisting) != nullptr)
decrRefCount((robj*)dictGetVal(deExisting));
dictSetVal(m_spdbSnapshotHOLDER->m_pdict, deExisting, dictGetVal(de));
dictSetVal(m_spdbSnapshotHOLDER->m_pdict, deExisting, o);
}
else
{
dictAdd(m_spdbSnapshotHOLDER->m_pdict, sdsdup((sds)dictGetKey(de)), dictGetVal(de));
dictAdd(m_spdbSnapshotHOLDER->m_pdict, sdsdup((sds)dictGetKey(de)), o);
}
if (dictGetVal(de) != nullptr)
incrRefCount((robj*)dictGetVal(de));
if (o->FExpires() || o == nullptr)
{
auto itr = m_setexpire->find((const char*)dictGetKey(de));
serverAssert(o == nullptr || itr != m_setexpire->end());
if (itr != m_setexpire->end())
m_spdbSnapshotHOLDER->m_setexpire->insert(*itr);
}
}
dictReleaseIterator(di);
// Stage 3 swap the databases with the snapshot
std::swap(m_pdict, m_spdbSnapshotHOLDER->m_pdict);
std::swap(m_setexpire, m_spdbSnapshotHOLDER->m_setexpire);
if (m_spdbSnapshotHOLDER->m_pdbSnapshot != nullptr)
std::swap(m_pdictTombstone, m_spdbSnapshotHOLDER->m_pdictTombstone);
// Stage 4 merge all expires
// TODO
std::swap(m_setexpire, m_spdbSnapshotHOLDER->m_setexpire);
// Finally free the snapshot
if (m_pdbSnapshot != nullptr && m_spdbSnapshotHOLDER->m_pdbSnapshot != nullptr)