Function restoreCommand

app/redis-6.2.6/src/cluster.c:5116–5214

RESTORE key ttl serialized-value [REPLACE] */

/* RESTORE key ttl serialized-value [REPLACE] */
void restoreCommand(client *c) {
    long long ttl, lfu_freq = -1, lru_idle = -1, lru_clock = -1;
    rio payload;
    int j, type, replace = 0, absttl = 0;
    robj *obj;

    /* Parse additional options */
    for (j = 4; j < c->argc; j++) {
        int additional = c->argc-j-1;
        if (!strcasecmp(c->argv[j]->ptr,"replace")) {
            replace = 1;
        } else if (!strcasecmp(c->argv[j]->ptr,"absttl")) {
            absttl = 1;
        } else if (!strcasecmp(c->argv[j]->ptr,"idletime") && additional >= 1 &&
                   lfu_freq == -1)
        {
            if (getLongLongFromObjectOrReply(c,c->argv[j+1],&lru_idle,NULL)
                    != C_OK) return;
            if (lru_idle < 0) {
                addReplyError(c,"Invalid IDLETIME value, must be >= 0");
                return;
            }
            lru_clock = LRU_CLOCK();
            j++; /* Consume additional arg. */
        } else if (!strcasecmp(c->argv[j]->ptr,"freq") && additional >= 1 &&
                   lru_idle == -1)
        {
            if (getLongLongFromObjectOrReply(c,c->argv[j+1],&lfu_freq,NULL)
                    != C_OK) return;
            if (lfu_freq < 0 || lfu_freq > 255) {
                addReplyError(c,"Invalid FREQ value, must be >= 0 and <= 255");
                return;
            }
            j++; /* Consume additional arg. */
        } else {
            addReplyErrorObject(c,shared.syntaxerr);
            return;
        }
    }

    /* Make sure this key does not already exist here... */
    robj *key = c->argv[1];
    if (!replace && lookupKeyWrite(c->db,key) != NULL) {
        addReplyErrorObject(c,shared.busykeyerr);
        return;
    }

    /* Check if the TTL value makes sense */
    if (getLongLongFromObjectOrReply(c,c->argv[2],&ttl,NULL) != C_OK) {
        return;
    } else if (ttl < 0) {
        addReplyError(c,"Invalid TTL value, must be >= 0");
        return;
    }

    /* Verify RDB version and data checksum. */
    if (verifyDumpPayload(c->argv[3]->ptr,sdslen(c->argv[3]->ptr)) == C_ERR)
    {