Function dictTypeExpandAllowed

src/util/dict.c:1043–1048

Because we may need to allocate huge memory chunk at once when dict * expands, we will check this allocation is allowed or not if the dict * type has expandAllowed member function. */

 * expands, we will check this allocation is allowed or not if the dict
 * type has expandAllowed member function. */
static int dictTypeExpandAllowed(dict *d) {
    if (d->type->expandAllowed == NULL) return 1;
    return d->type->expandAllowed(
                    DICTHT_SIZE(_dictNextExp(d->ht_used[0] + 1)) * sizeof(dictEntry*),
                    (double)d->ht_used[0] / DICTHT_SIZE(d->ht_size_exp[0]));
}

/* Expand the hash table if needed */
static int _HashTableExpandIfNeeded