queue

type Queue interface {
	Add(key vanus.ID)
	Len() int
	Get() (value vanus.ID, shutdown bool)
	Done(key vanus.ID)
	ShutDown()
	IsShutDown() bool
	ReAdd(key vanus.ID)
	GetFailNum(key vanus.ID) int
	ClearFailNum(key vanus.ID)
}