Function resetCommand

app/redis-6.2.6/src/networking.c:2427–2467

Reset the client state to resemble a newly connected client. */

/* Reset the client state to resemble a newly connected client.
 */
void resetCommand(client *c) {
    listNode *ln;

    /* MONITOR clients are also marked with CLIENT_SLAVE, we need to
     * distinguish between the two.
     */
    if (c->flags & CLIENT_MONITOR) {
        ln = listSearchKey(server.monitors,c);
        serverAssert(ln != NULL);
        listDelNode(server.monitors,ln);

        c->flags &= ~(CLIENT_MONITOR|CLIENT_SLAVE);
    }

    if (c->flags & (CLIENT_SLAVE|CLIENT_MASTER|CLIENT_MODULE)) {
        addReplyError(c,"can only reset normal client connections");
        return;
    }

    if (c->flags & CLIENT_TRACKING) disableTracking(c);
    selectDb(c,0);
    c->resp = 2;

    clientSetDefaultAuth(c);
    moduleNotifyUserChanged(c);
    discardTransaction(c);

    pubsubUnsubscribeAllChannels(c,0);
    pubsubUnsubscribeAllPatterns(c,0);

    if (c->name) {
        decrRefCount(c->name);
        c->name = NULL;
    }

    /* Selectively clear state flags not covered above */
    c->flags &= ~(CLIENT_ASKING|CLIENT_READONLY|CLIENT_PUBSUB|
            CLIENT_REPLY_OFF|CLIENT_REPLY_SKIP_NEXT);

    addReplyStatus(c,"RESET");
}

void clientCommand(client *c) {
    listNode *ln;