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Return observed duration from Timer.ObserveDuration 

Signed-off-by: beorn7 <beorn@soundcloud.com>
This commit is contained in:
beorn7 2018-12-03 21:10:34 +01:00
parent 32b1bb4674
commit 48d3ae798b
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 // ObserveDuration records the duration passed since the Timer was created with
// NewTimer. It calls the Observe method of the Observer provided during // NewTimer. It calls the Observe method of the Observer provided during
// construction with the duration in seconds as an argument. ObserveDuration is // construction with the duration in seconds as an argument. The observed
// usually called with a defer statement. // duration is also returned. ObserveDuration is usually called with a defer
// statement.
// //
// Note that this method is only guaranteed to never observe negative durations // Note that this method is only guaranteed to never observe negative durations
// if used with Go1.9+. // if used with Go1.9+.
func (t *Timer) ObserveDuration() { func (t *Timer) ObserveDuration() time.Duration {
d := time.Since(t.begin)
if t.observer != nil { if t.observer != nil {
t.observer.Observe(time.Since(t.begin).Seconds()) t.observer.Observe(d.Seconds())
} }
return d
} }