type TimingRatioHistogram … type TimingRatioHistogramOpts … type timingRatioHistogramInner … var _ … var _ … var _ … // NewTimingHistogram returns an object which is TimingHistogram-like. However, nothing // will be measured until the histogram is registered in at least one registry. func NewTimingRatioHistogram(opts *TimingRatioHistogramOpts) *TimingRatioHistogram { … } // NewTestableTimingHistogram adds injection of the clock func NewTestableTimingRatioHistogram(nowFunc func() time.Time, opts *TimingRatioHistogramOpts) *TimingRatioHistogram { … } func (trh *timingRatioHistogramInner) Set(numerator float64) { … } func (trh *timingRatioHistogramInner) Add(deltaNumerator float64) { … } func (trh *timingRatioHistogramInner) Sub(deltaNumerator float64) { … } func (trh *timingRatioHistogramInner) Inc() { … } func (trh *timingRatioHistogramInner) Dec() { … } func (trh *timingRatioHistogramInner) SetToCurrentTime() { … } func (trh *timingRatioHistogramInner) SetDenominator(denominator float64) { … } // WithContext allows the normal TimingHistogram metric to pass in context. // The context is no-op at the current level of development. func (trh *timingRatioHistogramInner) WithContext(ctx context.Context) RatioedGauge { … } type TimingRatioHistogramVec … var _ … var _ … // NewTimingHistogramVec constructs a new vector. // `opts.InitialValue` is the initial ratio, but this applies // only for the tiny period of time until NewForLabelValuesSafe sets // the ratio based on the given initial numerator and denominator. // Thus there is a tiny splinter of time during member construction when // its underlying TimingHistogram is given the initial numerator rather than // the initial ratio (which is obviously a non-issue when both are zero). // Note the difficulties associated with extracting a member // before registering the vector. func NewTimingRatioHistogramVec(opts *compbasemetrics.TimingHistogramOpts, labelNames ...string) *TimingRatioHistogramVec { … } // NewTestableTimingHistogramVec adds injection of the clock. func NewTestableTimingRatioHistogramVec(nowFunc func() time.Time, opts *compbasemetrics.TimingHistogramOpts, labelNames ...string) *TimingRatioHistogramVec { … } func (v *TimingRatioHistogramVec) metrics() Registerables { … } // NewForLabelValuesChecked will return an error if this vec is not hidden and not yet registered // or there is a syntactic problem with the labelValues. func (v *TimingRatioHistogramVec) NewForLabelValuesChecked(initialNumerator, initialDenominator float64, labelValues []string) (RatioedGauge, error) { … } // NewForLabelValuesSafe is the same as NewForLabelValuesChecked in cases where that does not // return an error. When the unsafe version returns an error due to the vector not being // registered yet, the safe version returns an object that implements its methods // by looking up the relevant vector member in each call (thus getting a non-noop after registration). // In the other error cases the object returned here is a noop. func (v *TimingRatioHistogramVec) NewForLabelValuesSafe(initialNumerator, initialDenominator float64, labelValues []string) RatioedGauge { … } type noopRatioed … func (noopRatioed) Set(float64) { … } func (noopRatioed) Add(float64) { … } func (noopRatioed) Sub(float64) { … } func (noopRatioed) Inc() { … } func (noopRatioed) Dec() { … } func (noopRatioed) SetToCurrentTime() { … } func (noopRatioed) SetDenominator(float64) { … } func (v *TimingRatioHistogramVec) Reset() { … }
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