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metrics: return an empty snapshot for NilResettingTimer (#16930)

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This commit is contained in:
Anton Evangelatov 2018-06-11 10:31:55 +03:00 committed by Péter Szilágyi
parent 13af276418
commit 7f0726f706
1 changed files with 5 additions and 1 deletions
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6
metrics/resetting_timer.go
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@ -58,7 +58,11 @@ type NilResettingTimer struct {
func (NilResettingTimer) Values() []int64 { return nil }
// Snapshot is a no-op.
func (NilResettingTimer) Snapshot() ResettingTimer { return NilResettingTimer{} }
func (NilResettingTimer) Snapshot() ResettingTimer {
return &ResettingTimerSnapshot{
values: []int64{},
}
}
// Time is a no-op.
func (NilResettingTimer) Time(func()) {}