60 lines
817 B
Go
60 lines
817 B
Go
package main
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import (
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"time"
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)
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type Timer struct {
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pending AtomicBool
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timer *time.Timer
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}
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/* Starts the timer if not already pending
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*/
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func (t *Timer) Start(dur time.Duration) bool {
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set := t.pending.Swap(true)
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if !set {
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t.timer.Reset(dur)
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return true
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}
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return false
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}
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/* Stops the timer
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*/
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func (t *Timer) Stop() {
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set := t.pending.Swap(true)
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if set {
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t.timer.Stop()
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select {
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case <-t.timer.C:
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default:
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}
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}
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t.pending.Set(false)
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}
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func (t *Timer) Pending() bool {
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return t.pending.Get()
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}
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func (t *Timer) Reset(dur time.Duration) {
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t.pending.Set(false)
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t.Start(dur)
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}
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func (t *Timer) Wait() <-chan time.Time {
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return t.timer.C
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}
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func NewTimer() (t Timer) {
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t.pending.Set(false)
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t.timer = time.NewTimer(0)
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t.timer.Stop()
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select {
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case <-t.timer.C:
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default:
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}
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return
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}
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