act_runner/poller/metric.go

34 lines
590 B
Go

package poller
import "sync/atomic"
// Metric interface
type Metric interface {
IncBusyWorker() uint64
DecBusyWorker() uint64
BusyWorkers() uint64
}
var _ Metric = (*metric)(nil)
type metric struct {
busyWorkers uint64
}
// NewMetric for default metric structure
func NewMetric() Metric {
return &metric{}
}
func (m *metric) IncBusyWorker() uint64 {
return atomic.AddUint64(&m.busyWorkers, 1)
}
func (m *metric) DecBusyWorker() uint64 {
return atomic.AddUint64(&m.busyWorkers, ^uint64(0))
}
func (m *metric) BusyWorkers() uint64 {
return atomic.LoadUint64(&m.busyWorkers)
}