Initial commit (code only without large binaries)

EdgeNode/internal/utils/ticker.go

@@ -0,0 +1,44 @@
+package utils
+
+import (
+	"github.com/TeaOSLab/EdgeNode/internal/utils/zero"
+	"sync"
+	"time"
+)
+
+// Ticker 类似于time.Ticker，但能够真正地停止
+type Ticker struct {
+	raw  *time.Ticker
+	done chan zero.Zero
+	once sync.Once
+
+	C <-chan time.Time
+}
+
+// NewTicker 创建新Ticker
+func NewTicker(duration time.Duration) *Ticker {
+	raw := time.NewTicker(duration)
+	return &Ticker{
+		raw:  raw,
+		C:    raw.C,
+		done: make(chan zero.Zero, 1),
+	}
+}
+
+// Next 查找下一个Tick
+func (this *Ticker) Next() bool {
+	select {
+	case <-this.raw.C:
+		return true
+	case <-this.done:
+		return false
+	}
+}
+
+// Stop 停止
+func (this *Ticker) Stop() {
+	this.once.Do(func() {
+		this.raw.Stop()
+		this.done <- zero.New()
+	})
+}