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Add pathfinding scores export method #458

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Merged
merged 1 commit into from
Feb 6, 2025
Merged

Add pathfinding scores export method #458

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2 changes: 2 additions & 0 deletions bindings/ldk_node.udl
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Original file line number Diff line number Diff line change
Expand Up @@ -126,6 +126,8 @@ interface Node {
NetworkGraph network_graph();
string sign_message([ByRef]sequence<u8> msg);
boolean verify_signature([ByRef]sequence<u8> msg, [ByRef]string sig, [ByRef]PublicKey pkey);
[Throws=NodeError]
bytes export_pathfinding_scores();
};

[Enum]
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19 changes: 19 additions & 0 deletions src/lib.rs
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Expand Up @@ -1509,6 +1509,25 @@ impl Node {
pub fn verify_signature(&self, msg: &[u8], sig: &str, pkey: &PublicKey) -> bool {
self.keys_manager.verify_signature(msg, sig, pkey)
}

/// Exports the current state of the scorer. The result can be shared with and merged by light nodes that only have
/// a limited view of the network.
pub fn export_pathfinding_scores(&self) -> Result<Vec<u8>, Error> {
self.kv_store
.read(
lightning::util::persist::SCORER_PERSISTENCE_PRIMARY_NAMESPACE,
lightning::util::persist::SCORER_PERSISTENCE_SECONDARY_NAMESPACE,
lightning::util::persist::SCORER_PERSISTENCE_KEY,
)
.map_err(|e| {
log_error!(
self.logger,
"Failed to access store while exporting pathfinding scores: {}",
e
);
Error::PersistenceFailed
})
}
}

impl Drop for Node {
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