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			45 lines
		
	
	
		
			706 B
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			45 lines
		
	
	
		
			706 B
		
	
	
	
		
			Go
		
	
	
	
	
	
package utils
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import (
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	"github.com/TeaOSLab/EdgeNode/internal/zero"
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	"sync"
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	"time"
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)
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// Ticker 类似于time.Ticker,但能够真正地停止
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type Ticker struct {
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	raw  *time.Ticker
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	done chan zero.Zero
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	once sync.Once
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	C <-chan time.Time
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}
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// NewTicker 创建新Ticker
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func NewTicker(duration time.Duration) *Ticker {
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	raw := time.NewTicker(duration)
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	return &Ticker{
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		raw:  raw,
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		C:    raw.C,
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		done: make(chan zero.Zero, 1),
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	}
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}
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// Next 查找下一个Tick
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func (this *Ticker) Next() bool {
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	select {
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	case <-this.raw.C:
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		return true
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	case <-this.done:
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		return false
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	}
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}
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// Stop 停止
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func (this *Ticker) Stop() {
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	this.once.Do(func() {
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		this.raw.Stop()
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		this.done <- zero.New()
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	})
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}
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