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routing: add inbound fee support to pathfinding

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Add sender-side support for inbound fees in pathfinding
and route building.
This commit is contained in:
Joost Jager
2022-07-05 15:01:18 +02:00
parent d97e7d30fb
commit 0bae781785
13 changed files with 585 additions and 131 deletions
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7
routing/graph.go
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@ -103,7 +103,10 @@ func (g *CachedGraph) FetchAmountPairCapacity(nodeFrom, nodeTo route.Vertex,
amount lnwire.MilliSatoshi) (btcutil.Amount, error) {
// Create unified edges for all incoming connections.
u := newNodeEdgeUnifier(g.sourceNode(), nodeTo, nil)
//
// 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)
err := u.addGraphPolicies(g)
if err != nil {
@ -116,7 +119,7 @@ func (g *CachedGraph) FetchAmountPairCapacity(nodeFrom, nodeTo route.Vertex,
nodeFrom, nodeTo)
}
edge := edgeUnifier.getEdgeNetwork(amount)
edge := edgeUnifier.getEdgeNetwork(amount, 0)
if edge == nil {
return 0, fmt.Errorf("no edge for node pair %v -> %v "+
"(amount %v)", nodeFrom, nodeTo, amount)