You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
26 lines
337 B
26 lines
337 B
package semaphore
|
|
|
|
type Semaphore struct {
|
|
channel chan bool
|
|
}
|
|
|
|
func New(max int) *Semaphore {
|
|
this:= new(Semaphore)
|
|
|
|
this.channel = make(chan bool, max)
|
|
|
|
return this
|
|
}
|
|
|
|
func (sem* Semaphore) Close() {
|
|
close(sem.channel)
|
|
}
|
|
|
|
func (sem *Semaphore) Lock() {
|
|
sem.channel <- true
|
|
}
|
|
|
|
func (sem *Semaphore) Unlock() {
|
|
<- sem.channel
|
|
}
|