status-go/vendor/github.com/afex/hystrix-go/hystrix/pool.go

38 lines
667 B
Go

package hystrix
type executorPool struct {
Name string
Metrics *poolMetrics
Max int
Tickets chan *struct{}
}
func newExecutorPool(name string) *executorPool {
p := &executorPool{}
p.Name = name
p.Metrics = newPoolMetrics(name)
p.Max = getSettings(name).MaxConcurrentRequests
p.Tickets = make(chan *struct{}, p.Max)
for i := 0; i < p.Max; i++ {
p.Tickets <- &struct{}{}
}
return p
}
func (p *executorPool) Return(ticket *struct{}) {
if ticket == nil {
return
}
p.Metrics.Updates <- poolMetricsUpdate{
activeCount: p.ActiveCount(),
}
p.Tickets <- ticket
}
func (p *executorPool) ActiveCount() int {
return p.Max - len(p.Tickets)
}