engine

type Engine struct {
	Routes map[string]*Route
	// minimum interval between changing states
	MinFlapInterval time.Duration
	// delay between interface up and announcing it to world
	UpDelay time.Duration
	// delay between downing interface and announcement
	DownDelay time.Duration
	// how often to repeat already up announcements
	ReAnnounce time.Duration
	// how often to repeat already up withdraws
	ReWithdraw time.Duration

	sync.RWMutex
	// contains filtered or unexported fields
}

type Route struct {
	// route
	Route string
	// next hop of the route
	NextHop string
	// extra parameters
	Extra string
	// whether route was announced
	Announced bool
	// whether route target is up
	Up              bool
	LastUp          time.Time
	LastDown        time.Time
	LastAnnounced   time.Time
	LastWithdrawn   time.Time
	LastStateChange time.Time
	UpCount         int
	DownCount       int
	// 0-100 score that tracks how often routes flap. 1 flap is worth 10 points, deduced 1 each time state is steady
	FlapScore int

	sync.Mutex
	// contains filtered or unexported fields
}

type RouteEngine interface {
	AnnounceRoute(route string, nexthop string, extra ...string) (err error)
	WithdrawRoute(route string, nexthop string, extra ...string) (err error)
}

type RouteHealthcheck interface {
	IsRouteUp(route string, nexthop string) bool
}