f - Fill in inflight_htlc_msat from used_channel_liquidities

Author: jkczyz

lightning/src/routing/router.rs

@@ -1312,9 +1312,11 @@ where L::Target: Logger {
 						hop_used = false;
 					}
 
+					let used_liquidity_msat = used_channel_liquidities
+						.get(&(hop.short_channel_id, source < target)).copied().unwrap_or(0);
 					let channel_usage = ChannelUsage {
 						amount_msat: final_value_msat + aggregate_next_hops_fee_msat,
-						inflight_htlc_msat: 0,
+						inflight_htlc_msat: used_liquidity_msat,
 						effective_capacity: candidate.effective_capacity(),
 					};
 					let channel_penalty_msat = scorer.channel_penalty_msat(