void quicklistReleaseIterator(quicklistIter *iter) {
    if (iter->current)
        quicklistCompress(iter->quicklist, iter->current);

    zfree(iter);
}
void quicklistReleaseIterator(quicklistIter *iter) {
    if (iter->current)
        quicklistCompress(iter->quicklist, iter->current);

    zfree(iter);
}