Implement custom debug for PathBuildingHop

Add other fields to log for PathBuildingHop

Use DebugStruct to print PathBuildingHop

Fix PathBuildingHop visibility

Add more useful fee print-outs

Remove Features<NodeContext> from hop print-out

Remove logging fields we don’t need

Add fields to log back to PathBuildingHop
This commit is contained in:
Jurvis Tan 2022-02-11 20:38:13 -08:00
parent b8e9e8b834
commit a3c2dfdcbc
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@ -423,7 +423,7 @@ impl<'a> CandidateRouteHop<'a> {
/// so that we can choose cheaper paths (as per Dijkstra's algorithm).
/// Fee values should be updated only in the context of the whole path, see update_value_and_recompute_fees.
/// These fee values are useful to choose hops as we traverse the graph "payee-to-payer".
#[derive(Clone, Debug)]
#[derive(Clone)]
struct PathBuildingHop<'a> {
// Note that this should be dropped in favor of loading it from CandidateRouteHop, but doing so
// is a larger refactor and will require careful performance analysis.
@ -463,6 +463,22 @@ struct PathBuildingHop<'a> {
value_contribution_msat: u64,
}
impl<'a> core::fmt::Debug for PathBuildingHop<'a> {
fn fmt(&self, f: &mut core::fmt::Formatter) -> Result<(), core::fmt::Error> {
f.debug_struct("PathBuildingHop")
.field("node_id", &self.node_id)
.field("short_channel_id", &self.candidate.short_channel_id())
.field("total_fee_msat", &self.total_fee_msat)
.field("next_hops_fee_msat", &self.next_hops_fee_msat)
.field("hop_use_fee_msat", &self.hop_use_fee_msat)
.field("total_fee_msat - (next_hops_fee_msat + hop_use_fee_msat)", &(&self.total_fee_msat - (&self.next_hops_fee_msat + &self.hop_use_fee_msat)))
.field("path_penalty_msat", &self.path_penalty_msat)
.field("path_htlc_minimum_msat", &self.path_htlc_minimum_msat)
.field("cltv_expiry_delta", &self.candidate.cltv_expiry_delta())
.finish()
}
}
// Instantiated with a list of hops with correct data in them collected during path finding,
// an instance of this struct should be further modified only via given methods.
#[derive(Clone)]
@ -1299,8 +1315,8 @@ where L::Target: Logger {
ordered_hops.last_mut().unwrap().0.fee_msat = value_contribution_msat;
ordered_hops.last_mut().unwrap().0.hop_use_fee_msat = 0;
log_trace!(logger, "Found a path back to us from the target with {} hops contributing up to {} msat: {:?}",
ordered_hops.len(), value_contribution_msat, ordered_hops);
log_trace!(logger, "Found a path back to us from the target with {} hops contributing up to {} msat: \n {:#?}",
ordered_hops.len(), value_contribution_msat, ordered_hops.iter().map(|h| &(h.0)).collect::<Vec<&PathBuildingHop>>());
let mut payment_path = PaymentPath {hops: ordered_hops};