c237633d34
The sync package is strongly tied to the runtime, so it's easier to implement a new one. Besides, it's pretty big so it's better to replace it.
16 строки
168 Б
Go
16 строки
168 Б
Go
package sync
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type Once struct {
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done bool
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m Mutex
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}
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func (o *Once) Do(f func()) {
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o.m.Lock()
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defer o.m.Unlock()
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if o.done {
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return
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}
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o.done = true
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f()
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}
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