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26 lines
353 B
Go
26 lines
353 B
Go
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package util
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import (
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"sync"
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"time"
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)
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func NewDeadlineWatcher(ddl time.Duration, timeOut func()) (done func()) {
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t := time.NewTimer(ddl)
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closeCh := make(chan struct{})
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go func() {
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defer t.Stop()
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select {
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case <-closeCh:
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case <-t.C:
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timeOut()
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}
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}()
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var once sync.Once
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return func() {
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once.Do(func() {
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close(closeCh)
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})
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}
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}
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