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Merge pull request #510 from prometheus/beorn7/timer 

Return observed duration from Timer.ObserveDuration
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Björn Rabenstein 2018-12-04 18:36:03 +01:00 committed by GitHub
parent 32b1bb4674 48d3ae798b
commit 2df5ba38ef
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1 changed files with 7 additions and 4 deletions
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11
prometheus/timer.go
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@ -39,13 +39,16 @@ func NewTimer(o Observer) *Timer {
// ObserveDuration records the duration passed since the Timer was created with
// NewTimer. It calls the Observe method of the Observer provided during
// construction with the duration in seconds as an argument. ObserveDuration is
// usually called with a defer statement.
// construction with the duration in seconds as an argument. The observed
// duration is also returned. ObserveDuration is usually called with a defer
// statement.
//
// Note that this method is only guaranteed to never observe negative durations
// if used with Go1.9+.
func (t *Timer) ObserveDuration() {
func (t *Timer) ObserveDuration() time.Duration {
d := time.Since(t.begin)
if t.observer != nil {
t.observer.Observe(time.Since(t.begin).Seconds())
t.observer.Observe(d.Seconds())
}
return d
}