lnd.xprv/channeldb/migration20/codec.go
eugene 204b6c51cf
channeldb: MigrateOutpointIndex, store indexStatus in outpoint index
Adds an outpoint index that stores a tlv stream. Currently the stream
only contains the outpoint's indexStatus. This should cut down on
big bbolt transactions in several places throughout the codebase.
2020-12-10 17:37:59 -08:00

37 lines
682 B
Go

package migration20
import (
"encoding/binary"
"io"
"github.com/btcsuite/btcd/wire"
)
var (
byteOrder = binary.BigEndian
)
// writeOutpoint writes an outpoint from the passed writer.
func writeOutpoint(w io.Writer, o *wire.OutPoint) error {
if _, err := w.Write(o.Hash[:]); err != nil {
return err
}
if err := binary.Write(w, byteOrder, o.Index); err != nil {
return err
}
return nil
}
// readOutpoint reads an outpoint from the passed reader.
func readOutpoint(r io.Reader, o *wire.OutPoint) error {
if _, err := io.ReadFull(r, o.Hash[:]); err != nil {
return err
}
if err := binary.Read(r, byteOrder, &o.Index); err != nil {
return err
}
return nil
}