Christian Schwarz
18 lines
229 B
Go
18 lines
229 B
Go
package util
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type Semaphore struct {
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c chan struct{}
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}
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func NewSemaphore(cap int) Semaphore {
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return Semaphore{make(chan struct{}, cap)}
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}
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func (s Semaphore) Down() {
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s.c <- struct{}{}
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}
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func (s Semaphore) Up() {
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<-s.c
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}
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