func readIntFileIntoCounter(ctr promm.Counter, path string) {
value, err := readIntFile(path)
if err != nil {
log.Printf("Unable to read integer from file %q for counter %v: %v",
path, *ctr.Desc(), err)
return
}
ctr.Set(float64(value))
}
func collectTrafficBytes(counter stat.Counter, oldTraffic, newTraffic *data.TrafficObject) {
if newTraffic == nil {
// If a client statistics has no traffic information, don't collect anything
return
}
var value float64
if oldTraffic != nil {
value = float64(newTraffic.Bytes - oldTraffic.Bytes)
} else {
value = float64(newTraffic.Bytes)
}
if value > 0 {
counter.Add(value)
} else if newTraffic.Bytes > 0 {
counter.Add(newTraffic.Bytes)
} else {
log.WithFields(log.Fields{
"newTraffic": *newTraffic,
"oldTraffic": oldTraffic,
"value": value,
}).Errorf("New traffic value was smaller than the old value and the new traffic value even seemed to be negative")
}
}
func readCounter(m prometheus.Counter) float64 {
// TODO: Revisit this once client_golang offers better testing tools.
pb := &dto.Metric{}
m.Write(pb)
return pb.GetCounter().GetValue()
}