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routing+channeldb: findPath uses Vertex instead of LightningNode

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This commit modifies the nodeWithDist struct to use a route.Vertex
instead of a *channeldb.LightningNode. This change, coupled with
the new ForEachNodeChannel function, allows the findPath Djikstra's
algorithm to cut down on database lookups since we no longer need
to call the FetchOtherNode function.
This commit is contained in:
nsa
2019-06-18 22:19:37 -04:00
parent 0193034f4f
commit 61a1ab08fb
3 changed files with 85 additions and 60 deletions
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7
routing/heap.go
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@@ -3,6 +3,7 @@ package routing
import (
"github.com/lightningnetwork/lnd/channeldb"
"github.com/lightningnetwork/lnd/lnwire"
"github.com/lightningnetwork/lnd/routing/route"
)
// nodeWithDist is a helper struct that couples the distance from the current
@@ -12,9 +13,9 @@ type nodeWithDist struct {
// current context.
dist int64
// node is the vertex itself. This pointer can be used to explore all
// the outgoing edges (channels) emanating from a node.
node *channeldb.LightningNode
// node is the vertex itself. This can be used to explore all the
// outgoing edges (channels) emanating from a node.
node route.Vertex
// amountToReceive is the amount that should be received by this node.
// Either as final payment to the final node or as an intermediate