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router+graph: return ErrGraphNodesNotFound if no nodes to prune

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Avoids creating a bucket unneccessarily.
This commit is contained in:
Johan T. Halseth 2018-12-04 11:20:38 +01:00
parent 87df6b71c5
commit 81fe6e73ed
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GPG Key ID: 15BAADA29DA20D26
2 changed files with 5 additions and 4 deletions
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6
channeldb/graph.go
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@ -795,9 +795,9 @@ func (c *ChannelGraph) PruneGraph(spentOutputs []*wire.OutPoint,
// node gains more channels, it will be re-added back to the graph. // node gains more channels, it will be re-added back to the graph.
func (c *ChannelGraph) PruneGraphNodes() error { func (c *ChannelGraph) PruneGraphNodes() error {
return c.db.Update(func(tx *bbolt.Tx) error { return c.db.Update(func(tx *bbolt.Tx) error {
nodes, err := tx.CreateBucketIfNotExists(nodeBucket) nodes := tx.Bucket(nodeBucket)
if err != nil { if nodes == nil {
return err return ErrGraphNodesNotFound
} }
edges := tx.Bucket(edgeBucket) edges := tx.Bucket(edgeBucket)
if edges == nil { if edges == nil {

3
routing/router.go
View File

@ -445,7 +445,8 @@ func (r *ChannelRouter) Start() error {
// Finally, before we proceed, we'll prune any unconnected nodes from // Finally, before we proceed, we'll prune any unconnected nodes from
// the graph in order to ensure we maintain a tight graph of "useful" // the graph in order to ensure we maintain a tight graph of "useful"
// nodes. // nodes.
if err := r.cfg.Graph.PruneGraphNodes(); err != nil { err = r.cfg.Graph.PruneGraphNodes()
if err != nil && err != channeldb.ErrGraphNodesNotFound {
return err return err
} }