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promauto: add NewCounterFunc and NewGaugeFunc #393

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merged 1 commit into from
Mar 19, 2018
Merged

promauto: add NewCounterFunc and NewGaugeFunc #393

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19 changes: 19 additions & 0 deletions prometheus/promauto/auto.go
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Original file line number Diff line number Diff line change
Expand Up @@ -147,6 +147,16 @@ func NewCounterVec(opts prometheus.CounterOpts, labelNames []string) *prometheus
return c
}

// NewCounterFunc works like the function of the same name in the prometheus
// package but it automatically registers the CounterFunc with the
// prometheus.DefaultRegisterer. If the registration fails, NewCounterFunc
// panics.
func NewCounterFunc(opts prometheus.CounterOpts, function func() float64) prometheus.CounterFunc {
g := prometheus.NewCounterFunc(opts, function)
prometheus.MustRegister(g)
return g
}

// NewGauge works like the function of the same name in the prometheus package
// but it automatically registers the Gauge with the
// prometheus.DefaultRegisterer. If the registration fails, NewGauge panics.
Expand All @@ -165,6 +175,15 @@ func NewGaugeVec(opts prometheus.GaugeOpts, labelNames []string) *prometheus.Gau
return g
}

// NewGaugeFunc works like the function of the same name in the prometheus
// package but it automatically registers the GaugeFunc with the
// prometheus.DefaultRegisterer. If the registration fails, NewGaugeFunc panics.
func NewGaugeFunc(opts prometheus.GaugeOpts, function func() float64) prometheus.GaugeFunc {
g := prometheus.NewGaugeFunc(opts, function)
prometheus.MustRegister(g)
return g
}

// NewSummary works like the function of the same name in the prometheus package
// but it automatically registers the Summary with the
// prometheus.DefaultRegisterer. If the registration fails, NewSummary panics.
Expand Down