Function clusterManagerAddSlots

app/redis-6.2.6/src/redis-cli.c:3397–3439

Flush dirty slots configuration of the node by calling CLUSTER ADDSLOTS */

/* Flush dirty slots configuration of the node by calling CLUSTER ADDSLOTS */
static int clusterManagerAddSlots(clusterManagerNode *node, char**err)
{
    redisReply *reply = NULL;
    void *_reply = NULL;
    int success = 1;
    /* First two args are used for the command itself. */
    int argc = node->slots_count + 2;
    sds *argv = zmalloc(argc * sizeof(*argv));
    size_t *argvlen = zmalloc(argc * sizeof(*argvlen));
    argv[0] = "CLUSTER";
    argv[1] = "ADDSLOTS";
    argvlen[0] = 7;
    argvlen[1] = 8;
    *err = NULL;
    int i, argv_idx = 2;
    for (i = 0; i < CLUSTER_MANAGER_SLOTS; i++) {
        if (argv_idx >= argc) break;
        if (node->slots[i]) {
            argv[argv_idx] = sdsfromlonglong((long long) i);
            argvlen[argv_idx] = sdslen(argv[argv_idx]);
            argv_idx++;
        }
    }
    if (!argv_idx) {
        success = 0;
        goto cleanup;
    }
    redisAppendCommandArgv(node->context,argc,(const char**)argv,argvlen);
    if (redisGetReply(node->context, &_reply) != REDIS_OK) {
        success = 0;
        goto cleanup;
    }
    reply = (redisReply*) _reply;
    success = clusterManagerCheckRedisReply(node, reply, err);
cleanup:
    zfree(argvlen);
    if (argv != NULL) {
        for (i = 2; i < argc; i++) sdsfree(argv[i]);
        zfree(argv);
    }
    if (reply != NULL) freeReplyObject(reply);
    return success;
}

/* Get the node the slot is assigned to from the point of view of node *n.
 * If the slot is unassigned or if the reply is an error, return NULL.