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channeldb+routing: persist first hop custom data for route

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This commit is contained in:
Oliver Gugger
2024-08-30 14:44:09 +02:00
parent c39143052e
commit 4804cbf139
3 changed files with 79 additions and 5 deletions
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20
routing/route/route.go
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@@ -488,6 +488,26 @@ type Route struct {
// Hops contains details concerning the specific forwarding details at
// each hop.
Hops []*Hop
// FirstHopAmount is the amount that should actually be sent to the
// first hop in the route. This is only different from TotalAmount above
// for custom channels where the on-chain amount doesn't necessarily
// reflect all the value of an outgoing payment.
FirstHopAmount tlv.RecordT[
tlv.TlvType0, tlv.BigSizeT[lnwire.MilliSatoshi],
]
// FirstHopWireCustomRecords is a set of custom records that should be
// included in the wire message sent to the first hop. This is only set
// on custom channels and is used to include additional information
// about the actual value of the payment.
//
// NOTE: Since these records already represent TLV records, and we
// enforce them to be in the custom range (e.g. >= 65536), we don't use
// another parent record type here. Instead, when serializing the Route
// we merge the TLV records together with the custom records and encode
// everything as a single TLV stream.
FirstHopWireCustomRecords lnwire.CustomRecords
}
// Copy returns a deep copy of the Route.