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go-zero/core/metric/counter.go

55 lines
990 B
Go

package metric
import (
prom "github.com/prometheus/client_golang/prometheus"
"github.com/tal-tech/go-zero/core/proc"
)
type (
CounterVecOpts VectorOpts
CounterVec interface {
Inc(lables ...string)
Add(v float64, labels ...string)
close() bool
}
promCounterVec struct {
counter *prom.CounterVec
}
)
func NewCounterVec(cfg *CounterVecOpts) CounterVec {
if cfg == nil {
return nil
}
vec := prom.NewCounterVec(prom.CounterOpts{
Namespace: cfg.Namespace,
Subsystem: cfg.Subsystem,
Name: cfg.Name,
Help: cfg.Help,
}, cfg.Labels)
prom.MustRegister(vec)
cv := &promCounterVec{
counter: vec,
}
proc.AddShutdownListener(func() {
cv.close()
})
return cv
}
func (cv *promCounterVec) Inc(labels ...string) {
cv.counter.WithLabelValues(labels...).Inc()
}
func (cv *promCounterVec) Add(v float64, lables ...string) {
cv.counter.WithLabelValues(lables...).Add(v)
}
func (cv *promCounterVec) close() bool {
return prom.Unregister(cv.counter)
}