multi: rename ChannelUpdate to ChannelUpdate1

In preparation for adding a new ChannelUpdate2 message and a
ChannelUpdate interface, we rename the existing message to
ChannelUpdate1.

graph/ann_validation.go

@@ -127,7 +127,7 @@ func ValidateNodeAnn(a *lnwire.NodeAnnouncement) error {
 // signed by the node's private key, and (2) that the announcement's message
 // flags and optional fields are sane.
 func ValidateChannelUpdateAnn(pubKey *btcec.PublicKey, capacity btcutil.Amount,
-	a *lnwire.ChannelUpdate) error {
+	a *lnwire.ChannelUpdate1) error {
 
 	if err := ValidateChannelUpdateFields(capacity, a); err != nil {
 		return err
@@ -138,7 +138,7 @@ func ValidateChannelUpdateAnn(pubKey *btcec.PublicKey, capacity btcutil.Amount,
 
 // VerifyChannelUpdateSignature verifies that the channel update message was
 // signed by the party with the given node public key.
-func VerifyChannelUpdateSignature(msg *lnwire.ChannelUpdate,
+func VerifyChannelUpdateSignature(msg *lnwire.ChannelUpdate1,
 	pubKey *btcec.PublicKey) error {
 
 	data, err := msg.DataToSign()
@@ -163,7 +163,7 @@ func VerifyChannelUpdateSignature(msg *lnwire.ChannelUpdate,
 // ValidateChannelUpdateFields validates a channel update's message flags and
 // corresponding update fields.
 func ValidateChannelUpdateFields(capacity btcutil.Amount,
-	msg *lnwire.ChannelUpdate) error {
+	msg *lnwire.ChannelUpdate1) error {
 
 	// The maxHTLC flag is mandatory.
 	if !msg.MessageFlags.HasMaxHtlc() {

graph/builder.go

@@ -1521,7 +1521,7 @@ type routingMsg struct {
 
 // ApplyChannelUpdate validates a channel update and if valid, applies it to the
 // database. It returns a bool indicating whether the updates were successful.
-func (b *Builder) ApplyChannelUpdate(msg *lnwire.ChannelUpdate) bool {
+func (b *Builder) ApplyChannelUpdate(msg *lnwire.ChannelUpdate1) bool {
 	ch, _, _, err := b.GetChannelByID(msg.ShortChannelID)
 	if err != nil {
 		log.Errorf("Unable to retrieve channel by id: %v", err)

graph/validation_barrier.go

@@ -146,7 +146,7 @@ func (v *ValidationBarrier) InitJobDependencies(job interface{}) {
 	// initialization needs to be done beyond just occupying a job slot.
 	case *models.ChannelEdgePolicy:
 		return
-	case *lnwire.ChannelUpdate:
+	case *lnwire.ChannelUpdate1:
 		return
 	case *lnwire.NodeAnnouncement:
 		// TODO(roasbeef): node ann needs to wait on existing channel updates
@@ -202,7 +202,7 @@ func (v *ValidationBarrier) WaitForDependants(job interface{}) error {
 		jobDesc = fmt.Sprintf("job=channeldb.LightningNode, pub=%s",
 			vertex)
 
-	case *lnwire.ChannelUpdate:
+	case *lnwire.ChannelUpdate1:
 		signals, ok = v.chanEdgeDependencies[msg.ShortChannelID]
 
 		jobDesc = fmt.Sprintf("job=lnwire.ChannelUpdate, scid=%v",
@@ -295,7 +295,7 @@ func (v *ValidationBarrier) SignalDependants(job interface{}, allow bool) {
 		delete(v.nodeAnnDependencies, route.Vertex(msg.PubKeyBytes))
 	case *lnwire.NodeAnnouncement:
 		delete(v.nodeAnnDependencies, route.Vertex(msg.NodeID))
-	case *lnwire.ChannelUpdate:
+	case *lnwire.ChannelUpdate1:
 		delete(v.chanEdgeDependencies, msg.ShortChannelID)
 	case *models.ChannelEdgePolicy:
 		shortID := lnwire.NewShortChanIDFromInt(msg.ChannelID)

graph/validation_barrier_test.go

@@ -85,9 +85,9 @@ func TestValidationBarrierQuit(t *testing.T) {
 
 	// Create a set of channel updates, that must wait until their
 	// associated channel announcement has been verified.
-	chanUpds := make([]*lnwire.ChannelUpdate, 0, numTasks)
+	chanUpds := make([]*lnwire.ChannelUpdate1, 0, numTasks)
 	for i := 0; i < numTasks; i++ {
-		chanUpds = append(chanUpds, &lnwire.ChannelUpdate{
+		chanUpds = append(chanUpds, &lnwire.ChannelUpdate1{
 			ShortChannelID: lnwire.NewShortChanIDFromInt(uint64(i)),
 		})
 		barrier.InitJobDependencies(chanUpds[i])