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26 lines
337 B
26 lines
337 B
5 years ago
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package semaphore
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type Semaphore struct {
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channel chan bool
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}
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func New(max int) *Semaphore {
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this:= new(Semaphore)
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this.channel = make(chan bool, max)
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return this
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}
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func (sem* Semaphore) Close() {
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close(sem.channel)
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}
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func (sem *Semaphore) Lock() {
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sem.channel <- true
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}
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func (sem *Semaphore) Unlock() {
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<- sem.channel
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}
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