Function RM_ZsetAdd

src/module.cpp:2740–2752

Add a new element into a sorted set, with the specified 'score'. * If the element already exists, the score is updated. * * A new sorted set is created at value if the key is an empty open key * setup for writing. * * Additional flags can be passed to the function via a pointer, the flags * are both used to receive input and to communicate state when the function * returns. 'flagsptr' can

 * * 'score' double value is not a number (NaN).
 */
int RM_ZsetAdd(RedisModuleKey *key, double score, RedisModuleString *ele, int *flagsptr) {
    int in_flags = 0, out_flags = 0;
    if (!(key->mode & REDISMODULE_WRITE)) return REDISMODULE_ERR;
    if (key->value && key->value->type != OBJ_ZSET) return REDISMODULE_ERR;
    if (key->value == NULL) moduleCreateEmptyKey(key,REDISMODULE_KEYTYPE_ZSET);
    if (flagsptr) in_flags = moduleZsetAddFlagsToCoreFlags(*flagsptr);
    if (zsetAdd(key->value,score,szFromObj(ele),in_flags,&out_flags,NULL) == 0) {
        if (flagsptr) *flagsptr = 0;
        return REDISMODULE_ERR;
    }
    if (flagsptr) *flagsptr = moduleZsetAddFlagsFromCoreFlags(out_flags);
    return REDISMODULE_OK;
}

/* This function works exactly like RM_ZsetAdd(), but instead of setting
 * a new score, the score of the existing element is incremented, or if the