Method removeExpire

src/db.cpp:1814–1828

    return db->removeExpire(key, itr);
}
int redisDbPersistentData::removeExpire(robj *key, dict_iter itr) {
    /* An expire may only be removed if there is a corresponding entry in the
     * main dict. Otherwise, the key will never be freed. */
    serverAssertWithInfo(NULL,key,itr != nullptr);

    robj *val = itr.val();
    if (!val->FExpires())
        return 0;

    trackkey(key, true /* fUpdate */);
    val->SetFExpires(false);
    serverAssert(m_numexpires > 0);
    m_numexpires--;
    return 1;
}

int redisDbPersistentData::removeSubkeyExpire(robj *key, robj *subkey) {
    auto de = find(szFromObj(key));