Function quicklistDelIndex

app/redis-6.2.6/src/quicklist.c:637–652

Delete one entry from list given the node for the entry and a pointer * to the entry in the node. * * Note: quicklistDelIndex() *requires* uncompressed nodes because you * already had to get *p from an uncompressed node somewhere. * * Returns 1 if the entire node was deleted, 0 if node still exists. * Also updates in/out param 'p' with the next offset in the ziplist. */

 * Returns 1 if the entire node was deleted, 0 if node still exists.
 * Also updates in/out param 'p' with the next offset in the ziplist. */
REDIS_STATIC int quicklistDelIndex(quicklist *quicklist, quicklistNode *node,
                                   unsigned char **p) {
    int gone = 0;

    node->zl = ziplistDelete(node->zl, p);
    node->count--;
    if (node->count == 0) {
        gone = 1;
        __quicklistDelNode(quicklist, node);
    } else {
        quicklistNodeUpdateSz(node);
    }
    quicklist->count--;
    /* If we deleted the node, the original node is no longer valid */
    return gone ? 1 : 0;
}

/* Delete one element represented by 'entry'
 *