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metrics: use atomic.Pointer in runtimeHistogram (#32361)
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Co-authored-by: Felix Lange <fjl@twurst.com>
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cui 2025-08-08 02:03:30 +08:00 committed by GitHub
parent f86870f5da
commit 888b71b3cf
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1 changed files with 2 additions and 2 deletions
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4
metrics/runtimehistogram.go
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@ -14,7 +14,7 @@ func getOrRegisterRuntimeHistogram(name string, scale float64, r Registry) *runt
// runtimeHistogram wraps a runtime/metrics histogram. // runtimeHistogram wraps a runtime/metrics histogram.
type runtimeHistogram struct { type runtimeHistogram struct {
v atomic.Value // v is a pointer to a metrics.Float64Histogram v atomic.Pointer[metrics.Float64Histogram]
scaleFactor float64 scaleFactor float64
} }
@ -58,7 +58,7 @@ func (h *runtimeHistogram) Update(int64) {
// Snapshot returns a non-changing copy of the histogram. // Snapshot returns a non-changing copy of the histogram.
func (h *runtimeHistogram) Snapshot() HistogramSnapshot { func (h *runtimeHistogram) Snapshot() HistogramSnapshot {
hist := h.v.Load().(*metrics.Float64Histogram) hist := h.v.Load()
return newRuntimeHistogramSnapshot(hist) return newRuntimeHistogramSnapshot(hist)
} }