func (dl directoryLayer) subdirNodes(tr fdb.Transaction, node subspace.Subspace) []subspace.Subspace { sd := node.Sub(_SUBDIRS) rr := tr.GetRange(sd, fdb.RangeOptions{}) ri := rr.Iterator() var ret []subspace.Subspace for ri.Advance() { kv := ri.MustGet() ret = append(ret, dl.nodeWithPrefix(kv.Value)) } return ret }