Someone

int
handle_Input(netsnmp_mib_handler *handler,
                          netsnmp_handler_registration *reginfo,
                          netsnmp_agent_request_info   *reqinfo,
                          netsnmp_request_info         *requests)
{
    int ret;
    int temp;
    
    switch(reqinfo->mode) {

        case MODE_GET:
	    status.display_input = 15;
            requests->delegated = 1;
        snmp_alarm_register(5, /* seconds */
                            0,  /* dont repeat. */
                            return_delayed_Input,    /* the function
                                                         * to call */
                            (void *)
                            netsnmp_create_delegated_cache(handler,
                                                           reginfo,
                                                           reqinfo,
                                                           requests,
                                                           NULL));
            break;

        case MODE_SET_RESERVE1:
                /* or you could use netsnmp_check_vb_type_and_size instead */
            ret = netsnmp_check_vb_type(requests->requestvb, ASN_INTEGER);
            if ( ret != SNMP_ERR_NOERROR ) {
                netsnmp_set_request_error(reqinfo, requests, ret );
            }
            break;

        case MODE_SET_RESERVE2:
            break;

        case MODE_SET_FREE:
            break;

        case MODE_SET_ACTION:
            break;

        case MODE_SET_COMMIT:
            break;

        case MODE_SET_UNDO:
            break;

        default:
            snmp_log(LOG_ERR, "unknown mode (%d) in handle_Input\n", reqinfo->mode );
            return SNMP_ERR_GENERR;
    }

    return SNMP_ERR_NOERROR;
}
void
return_delayed_Input(unsigned int clientreg, void *clientarg)
{    /*
     * extract the cache from the passed argument 
     */
    netsnmp_delegated_cache *cache = (netsnmp_delegated_cache *) clientarg;

    netsnmp_request_info *requests;
    netsnmp_agent_request_info *reqinfo;
    u_long         *delay_time_cache = NULL;

    /*
     * here we double check that the cache we created earlier is still
     * * valid.  If not, the request timed out for some reason and we
     * * don't need to keep processing things.  Should never happen, but
     * * this double checks. 
     */
    cache = netsnmp_handler_check_cache(cache);

    if (!cache) {
        snmp_log(LOG_ERR, "illegal call to return delayed response\n");
        return;
    }

    /*
     * re-establish the previous pointers we are used to having 
     */
    reqinfo = cache->reqinfo;
    requests = cache->requests;

    DEBUGMSGTL(("delayed_instance",
                "continuing delayed request, mode = %d\n",
                cache->reqinfo->mode));

    /*
     * mention that it's no longer delegated, and we've now answered
     * the query (which we'll do down below). 
     */
    requests->delegated = 0;

    switch (cache->reqinfo->mode) {
        /*
         * registering as an instance means we don't need to deal with
         * getnext processing, so we don't handle it here at all.
         * 
         * However, since the instance handler already reset the mode
         * back to GETNEXT from the faked GET mode, we need to do the
         * same thing in both cases.  This should be fixed in future
         * versions of net-snmp hopefully. 
         */

    case MODE_GET:
    case MODE_GETNEXT:
        dbgPrintf (("delayed item calleD!\n"));
        /*
         * return the currend delay time 
         */
        snmp_set_var_typed_value(cache->requests->requestvb,
                                 ASN_INTEGER,
                                 (u_char *) &status.display_input,
                                 sizeof(status.display_input));
        break;

    }

    /*
     * free the information cache 
     */
    netsnmp_free_delegated_cache(cache);
}