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16 lines
246 B
Go
16 lines
246 B
Go
4 years ago
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package syncx
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import "sync/atomic"
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type OnceGuard struct {
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done uint32
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}
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func (og *OnceGuard) Taken() bool {
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return atomic.LoadUint32(&og.done) == 1
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}
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func (og *OnceGuard) Take() bool {
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return atomic.CompareAndSwapUint32(&og.done, 0, 1)
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}
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