mirror of
https://github.com/XTLS/Xray-core.git
synced 2024-11-09 18:43:12 +00:00
27 lines
640 B
Go
27 lines
640 B
Go
package signal
|
|
|
|
// Notifier is a utility for notifying changes. The change producer may notify changes multiple time, and the consumer may get notified asynchronously.
|
|
type Notifier struct {
|
|
c chan struct{}
|
|
}
|
|
|
|
// NewNotifier creates a new Notifier.
|
|
func NewNotifier() *Notifier {
|
|
return &Notifier{
|
|
c: make(chan struct{}, 1),
|
|
}
|
|
}
|
|
|
|
// Signal signals a change, usually by producer. This method never blocks.
|
|
func (n *Notifier) Signal() {
|
|
select {
|
|
case n.c <- struct{}{}:
|
|
default:
|
|
}
|
|
}
|
|
|
|
// Wait returns a channel for waiting for changes. The returned channel never gets closed.
|
|
func (n *Notifier) Wait() <-chan struct{} {
|
|
return n.c
|
|
}
|