MachAlrm_Progn_res MachAlrm_Progn::combine(MachAlrm_Progn_single_res prgs[], size_t n, FILE *dbg_out)
{
    MachAlrm_Progn_res res = {};
    ETCTIME etm_min = -1, etm_min_trusted = -1;

    for(size_t i = 0; i < n; i++)
    {
        if((etm_min == -1) || ((prgs[i].Talrm != -1) && (prgs[i].Talrm < etm_min)))
            etm_min = prgs[i].Talrm;
        if(prgs[i].Talarm_trusted && ((etm_min_trusted == -1) || ((prgs[i].Talrm != -1) && (prgs[i].Talrm < etm_min_trusted))))
            etm_min_trusted = prgs[i].Talrm;
    }

    res.alrm_near = etm_min;
    res.alrm_far = etm_min_trusted;
    
    if((etm_min == -1) || (etm_min != etm_min_trusted))
        for(size_t i = progn_nperiods; i > 0;)
        {
            i--;
            if((etm_min == -1) || (((ETCTIME)(progn_periods[i]/ETCTIME2SECOND_ratio*m_cfg.Talrm_trust_interval))*ETCTIME2SECOND_ratio < etm_min))
            {
                res.alrm_near = ((ETCTIME)(progn_periods[i]/ETCTIME2SECOND_ratio*m_cfg.Talrm_trust_interval))*ETCTIME2SECOND_ratio;
                break;
            }
        }


    LTRACE(("combine result: %I64u, %I64u", etm_min, etm_min_trusted));
    if(dbg_out)
        fprintf(dbg_out, "combine result: %I64u, %I64u\n", etm_min, etm_min_trusted);

    return(res);
}