func (c *ntpCollector) Update(ch chan<- prometheus.Metric) (err error) {
resp, err := ntp.Query(*ntpServer, *ntpProtocolVersion)
if err != nil {
return fmt.Errorf("couldn't get NTP drift: %s", err)
}
driftSeconds := resp.ClockOffset.Seconds()
log.Debugf("Set ntp_drift_seconds: %f", driftSeconds)
ch <- c.drift.mustNewConstMetric(driftSeconds)
stratum := float64(resp.Stratum)
log.Debugf("Set ntp_stratum: %f", stratum)
ch <- c.stratum.mustNewConstMetric(stratum)
return nil
}
func (self *SyncSender) AnnounceTime(destination sfconnection.AMAddr, offset int64) {
if ntpr, err := ntp.Query(self.host, 4); err == nil {
self.Debug.Printf("NTP %d stratum %d RTT %s offset %s", ntpr.Time.Unix(), ntpr.Stratum, ntpr.RTT, ntpr.ClockOffset)
m := new(RTCSyncMsg)
m.Header = TIME_ANNOUNCEMENT_UNIX
m.Stratum = ntpr.Stratum + 1
m.Nxtime = ntpr.Time.Unix() + offset
msg := self.dsp.NewMessage()
msg.SetDestination(destination)
msg.SetType(AMID_RTC)
msg.Payload = sfconnection.SerializePacket(m)
self.Info.Printf("Announce %s->%s %d(%d)\n", msg.Source(), destination, m.Nxtime, offset)
self.sfc.Send(msg)
} else {
self.Warning.Printf("NTP query failed %s", err)
}
}