if m.lastHandout.After(now) {
			m.lastHandout = now
		}
	}
	if m.status == scanStateStarted && update.status == scanStateSuccess {
		m.ended = now
	}

	if m.status == scanStateStarted && update.status != scanStateStarted {
		m.status = update.status
	}

	if m.status == scanStateStarted && time.Since(m.lastHandout) > metacacheMaxClientWait {
		// Drop if client hasn't been seen for 3 minutes.

	if err != nil {
		return err
	}
	cache := *c

	if cache.status == scanStateNone || cache.fileNotFound {
		return errFileNotFound
	}
	if cache.status == scanStateSuccess || cache.status == scanStateStarted {
		if time.Since(cache.lastUpdate) > metacacheMaxRunningAge {
			// We got a stale entry, mark error on handling server.
			err := fmt.Errorf("timeout: list %s not updated", cache.id)
			cache.error = err.Error()

func (o listPathOptions) newMetacache() metacache {
	return metacache{
		id:          o.ID,
		bucket:      o.Bucket,
		root:        o.BaseDir,
		recursive:   o.Recursive,
		status:      scanStateStarted,
		error:       "",
		started:     UTCNow(),
		lastHandout: UTCNow(),
		lastUpdate:  UTCNow(),
		ended:       time.Time{},
		dataVersion: metacacheStreamVersion,
		filter:      o.FilterPrefix,
	}