From 623da4da7ac1847d607c72cd6f0b547dc050e259 Mon Sep 17 00:00:00 2001 From: Matt Corallo Date: Mon, 16 Aug 2021 18:02:59 +0000 Subject: [PATCH] Add further comments around fee update handling in channel These were suggested to clarify behavior in post-merge review of #985. --- lightning/src/ln/channel.rs | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/lightning/src/ln/channel.rs b/lightning/src/ln/channel.rs index 777837757..f8cbc26a2 100644 --- a/lightning/src/ln/channel.rs +++ b/lightning/src/ln/channel.rs @@ -3705,6 +3705,8 @@ impl Channel { // more dust balance if the feerate increases when we have several HTLCs pending // which are near the dust limit. let mut feerate_per_kw = self.feerate_per_kw; + // If there's a pending update fee, use it to ensure we aren't under-estimating + // potential feerate updates coming soon. if let Some((feerate, _)) = self.pending_update_fee { feerate_per_kw = cmp::max(feerate_per_kw, feerate); } @@ -4941,9 +4943,10 @@ impl Writeable for Channel { if self.is_outbound() { self.pending_update_fee.map(|(a, _)| a).write(writer)?; } else if let Some((feerate, FeeUpdateState::AwaitingRemoteRevokeToAnnounce)) = self.pending_update_fee { - // As for inbound HTLCs, if the update was only announced and never committed, drop it. Some(feerate).write(writer)?; } else { + // As for inbound HTLCs, if the update was only announced and never committed in a + // commitment_signed, drop it. None::.write(writer)?; } self.holding_cell_update_fee.write(writer)?; -- 2.39.5