Function clusterNodeClearSlotBit

app/redis-6.2.6/src/cluster.c:3870–3875

Clear the slot bit and return the old value. */

/* Clear the slot bit and return the old value. */
int clusterNodeClearSlotBit(clusterNode *n, int slot) {
    int old = bitmapTestBit(n->slots,slot);
    bitmapClearBit(n->slots,slot);
    if (old) n->numslots--;
    return old;
}

/* Return the slot bit from the cluster node structure. */
int clusterNodeGetSlotBit(clusterNode *n, int slot) {