///値の加算
///@note Available since 2.0.0.
bool server_type::api_hincrby(client_type * client)
{
auto current = client->get_time();
auto & key = *client->get_keys()[0];
auto & field = *client->get_fields()[0];
auto & increment = client->get_argument(3);
bool is_valid = true;
int64_t intval = atoi64(increment, is_valid);
if (!is_valid) {
throw std::runtime_error("ERR increment is not valid integer");
}
auto db = writable_db(client);
std::shared_ptr<type_hash> hash = db->get_hash(key, current);
std::string oldval = "0";
if (hash) {
auto r = hash->hget(field);
if (r.second) {
oldval = r.first;
}
}
int64_t newval = incrby(oldval, intval);
std::string newstr = format("%"PRId64, newval);
if (!hash) {
hash.reset(new type_hash(current));
hash->hset(field, newstr);
db->replace(key, hash);
} else {
hash->hset(field, newstr);
hash->update(current);
}
client->response_integer(newval);
return true;
}
static int zunionstore_sum(rlite *db, long keys_size, unsigned char **keys, long *keys_len, double *weights)
{
rl_skiplist_iterator *iterator = NULL;
rl_skiplist *skiplist;
double score;
unsigned char *member;
long memberlen;
int retval;
long i;
for (i = 1; i < keys_size; i++) {
retval = rl_zset_get_objects(db, keys[i], keys_len[i], NULL, NULL, NULL, &skiplist, NULL, 0, 0);
if (retval == RL_NOT_FOUND) {
continue;
}
if (retval != RL_OK) {
goto cleanup;
}
RL_CALL(rl_skiplist_iterator_create, RL_OK, db, &iterator, skiplist, 0, 1, 0);
while ((retval = rl_zset_iterator_next(iterator, &score, &member, &memberlen)) == RL_OK) {
if (weights) {
score *= weights[i - 1];
}
if (isnan(score)) {
score = 0.0;
}
retval = incrby(db, keys[0], keys_len[0], score, member, memberlen, NULL, 1);
rl_free(member);
if (retval != RL_OK) {
goto cleanup;
}
}
iterator = NULL;
if (retval != RL_END) {
goto cleanup;
}
}
retval = RL_OK;
cleanup:
if (iterator) {
rl_zset_iterator_destroy(iterator);
}
return retval;
}
int rl_zincrby(rlite *db, const unsigned char *key, long keylen, double score, unsigned char *member, long memberlen, double *newscore)
{
return incrby(db, key, keylen, score, member, memberlen, newscore, 0);
}
