mihomo/common/observable/subscriber.go
2020-10-20 17:44:39 +08:00

33 lines
466 B
Go

package observable
import (
"sync"
)
type Subscription <-chan interface{}
type Subscriber struct {
buffer chan interface{}
once sync.Once
}
func (s *Subscriber) Emit(item interface{}) {
s.buffer <- item
}
func (s *Subscriber) Out() Subscription {
return s.buffer
}
func (s *Subscriber) Close() {
s.once.Do(func() {
close(s.buffer)
})
}
func newSubscriber() *Subscriber {
sub := &Subscriber{
buffer: make(chan interface{}, 200),
}
return sub
}