initial import

core/executors/lessexecutor.go

@@ -0,0 +1,32 @@
+package executors
+
+import (
+	"time"
+
+	"zero/core/syncx"
+	"zero/core/timex"
+)
+
+type LessExecutor struct {
+	threshold time.Duration
+	lastTime  *syncx.AtomicDuration
+}
+
+func NewLessExecutor(threshold time.Duration) *LessExecutor {
+	return &LessExecutor{
+		threshold: threshold,
+		lastTime:  syncx.NewAtomicDuration(),
+	}
+}
+
+func (le *LessExecutor) DoOrDiscard(execute func()) bool {
+	now := timex.Now()
+	lastTime := le.lastTime.Load()
+	if lastTime == 0 || lastTime+le.threshold < now {
+		le.lastTime.Set(now)
+		execute()
+		return true
+	}
+
+	return false
+}