Signal(ch chan<- *dbus.Signal)
}

// DBusCon has functions that can be used to interact with systemd and logind over dbus.
type DBusCon struct {
	SystemBus dBusConnector
}

func NewDBusCon() (*DBusCon, error) {
	conn, err := dbus.SystemBus()
	if err != nil {
		return nil, err
	}

	return &DBusCon{
		SystemBus: conn,
	}, nil
}

	dbusReconnectPeriod            = 1 * time.Second
	localStorageStateFile          = "graceful_node_shutdown_state"
)

var systemDbus = func() (dbusInhibiter, error) {
	return systemd.NewDBusCon()
}

type dbusInhibiter interface {
	CurrentInhibitDelay() (time.Duration, error)
	InhibitShutdown() (systemd.InhibitLock, error)
	ReleaseInhibitLock(lock systemd.InhibitLock) error
	ReloadLogindConf() error