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routing: remove sourceNode from routingGraph interface

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In this commit, we further reduce the routingGraph interface and this
time we make it more node-agnostic so that it can be backed by any graph
and not one with a concept of "sourceNode".
This commit is contained in:
Elle Mouton
2024-06-14 18:47:15 -04:00
parent 5c18b5a042
commit 5a903c270f
8 changed files with 24 additions and 32 deletions
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12
routing/graph.go
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@@ -18,9 +18,6 @@ type routingGraph interface {
forEachNodeChannel(nodePub route.Vertex,
cb func(channel *channeldb.DirectedChannel) error) error
// sourceNode returns the source node of the graph.
sourceNode() route.Vertex
// fetchNodeFeatures returns the features of the given node.
fetchNodeFeatures(nodePub route.Vertex) (*lnwire.FeatureVector, error)
}
@@ -73,13 +70,6 @@ func (g *CachedGraph) forEachNodeChannel(nodePub route.Vertex,
return g.graph.ForEachNodeDirectedChannel(g.tx, nodePub, cb)
}
// sourceNode returns the source node of the graph.
//
// NOTE: Part of the routingGraph interface.
func (g *CachedGraph) sourceNode() route.Vertex {
return g.source
}
// fetchNodeFeatures returns the features of the given node. If the node is
// unknown, assume no additional features are supported.
//
@@ -99,7 +89,7 @@ func (g *CachedGraph) FetchAmountPairCapacity(nodeFrom, nodeTo route.Vertex,
//
// Note: Inbound fees are not used here because this method is only used
// by a deprecated router rpc.
u := newNodeEdgeUnifier(g.sourceNode(), nodeTo, false, nil)
u := newNodeEdgeUnifier(g.source, nodeTo, false, nil)
err := u.addGraphPolicies(g)
if err != nil {