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htlcswitch: add docs for circuit bucket hierarchy

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yyforyongyu
2021-07-22 20:40:36 +08:00
parent c74c1d0f51
commit e513057eae
1 changed files with 20 additions and 0 deletions
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20
htlcswitch/circuit_map.go
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@@ -137,11 +137,31 @@ var (
// a packet to the source link, potentially including an error
// encrypter for applying this hop's encryption to the payload in the
// reverse direction.
//
// Bucket hierarchy:
//
// circuitAddKey(root-bucket)
// |
// |-- <incoming-circuit-key>: <encoded bytes of PaymentCircuit>
// |-- <incoming-circuit-key>: <encoded bytes of PaymentCircuit>
// |
// ...
//
circuitAddKey = []byte("circuit-adds")
// circuitKeystoneKey is used to retrieve the bucket containing circuit
// keystones, which are set in place once a forwarded packet is
// assigned an index on an outgoing commitment txn.
//
// Bucket hierarchy:
//
// circuitKeystoneKey(root-bucket)
// |
// |-- <outgoing-circuit-key>: <incoming-circuit-key>
// |-- <outgoing-circuit-key>: <incoming-circuit-key>
// |
// ...
//
circuitKeystoneKey = []byte("circuit-keystones")
)