Function dbAdd

app/redis-6.2.6/src/db.c:193–200

Add the key to the DB. It's up to the caller to increment the reference * counter of the value if needed. * * The program is aborted if the key already exists. */

 *
 * The program is aborted if the key already exists. */
void dbAdd(redisDb *db, robj *key, robj *val) {
    sds copy = sdsdup(key->ptr);
    int retval = dictAdd(db->dict, copy, val);

    serverAssertWithInfo(NULL,key,retval == DICT_OK);
    signalKeyAsReady(db, key, val->type);
    if (server.cluster_enabled) slotToKeyAdd(key->ptr);
}

/* This is a special version of dbAdd() that is used only when loading
 * keys from the RDB file: the key is passed as an SDS string that is