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

kielbarry · Jul 9, 2018 · 3f22648 · 3f22648
1 parent 084137d
commit 3f22648
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/metrics/resetting_timer.go b/metrics/resetting_timer.go
@@ -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()) {}