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routing: remove path finding shortcut

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This shortcut does not work when the destination is a private node. We
also don't have this shortcut for regular payments. This commit
aligns the behavior between SendPayment and QueryRoutes.
This commit is contained in:
Joost Jager 2020-01-15 20:28:48 +01:00
parent 27139b8c28
commit e9b7e80848
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GPG Key ID: A61B9D4C393C59C7
2 changed files with 1 additions and 15 deletions
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7
routing/errors.go
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@ -7,14 +7,9 @@ import "github.com/go-errors/errors"
type errorCode uint8 type errorCode uint8
const ( const (
// ErrTargetNotInNetwork is returned when the target of a path-finding
// or payment attempt isn't known to be within the current version of
// the channel graph.
ErrTargetNotInNetwork errorCode = iota
// ErrOutdated is returned when the routing update already have // ErrOutdated is returned when the routing update already have
// been applied, or a newer update is already known. // been applied, or a newer update is already known.
ErrOutdated ErrOutdated errorCode = iota
// ErrIgnored is returned when the update have been ignored because // ErrIgnored is returned when the update have been ignored because
// this update can't bring us something new, or because a node // this update can't bring us something new, or because a node

9
routing/router.go
View File

@ -1407,15 +1407,6 @@ func (r *ChannelRouter) FindRoute(source, target route.Vertex,
log.Debugf("Searching for path to %v, sending %v", target, amt) log.Debugf("Searching for path to %v, sending %v", target, amt)
// We can short circuit the routing by opportunistically checking to
// see if the target vertex event exists in the current graph.
if _, exists, err := r.cfg.Graph.HasLightningNode(target); err != nil {
return nil, err
} else if !exists {
log.Debugf("Target %x is not in known graph", target)
return nil, newErrf(ErrTargetNotInNetwork, "target not found")
}
// We'll attempt to obtain a set of bandwidth hints that can help us // We'll attempt to obtain a set of bandwidth hints that can help us
// eliminate certain routes early on in the path finding process. // eliminate certain routes early on in the path finding process.
bandwidthHints, err := generateBandwidthHints( bandwidthHints, err := generateBandwidthHints(