Function lindexCommand

app/redis-6.2.6/src/t_list.c:340–362

LINDEX */

/* LINDEX <key> <index> */
void lindexCommand(client *c) {
    robj *o = lookupKeyReadOrReply(c,c->argv[1],shared.null[c->resp]);
    if (o == NULL || checkType(c,o,OBJ_LIST)) return;
    long index;

    if ((getLongFromObjectOrReply(c, c->argv[2], &index, NULL) != C_OK))
        return;

    if (o->encoding == OBJ_ENCODING_QUICKLIST) {
        quicklistEntry entry;
        if (quicklistIndex(o->ptr, index, &entry)) {
            if (entry.value) {
                addReplyBulkCBuffer(c, entry.value, entry.sz);
            } else {
                addReplyBulkLongLong(c, entry.longval);
            }
        } else {
            addReplyNull(c);
        }
    } else {
        serverPanic("Unknown list encoding");
    }
}

/* LSET <key> <index> <element> */
void lsetCommand(client *c) {