func readCompletedEdges(ctx context.Context, edges *table.KVProto, outs ...chan<- *srvpb.Edge) error { defer func() { for _, out := range outs { close(out) } }() snapshot := edges.NewSnapshot() defer snapshot.Close() it, err := edges.ScanPrefix(nil, &keyvalue.Options{ LargeRead: true, Snapshot: snapshot, }) if err != nil { return err } defer it.Close() for { _, v, err := it.Next() if err == io.EOF { break } else if err != nil { return fmt.Errorf("error scanning edges table: %v", err) } var e srvpb.Edge if err := proto.Unmarshal(v, &e); err != nil { return fmt.Errorf("invalid edge table value: %v", err) } for _, out := range outs { out <- &e } } return nil }