Improve logging around redundant force close monitor updates

[rust-lightning] / lightning / src / chain / channelmonitor.rs

diff --git a/lightning/src/chain/channelmonitor.rs b/lightning/src/chain/channelmonitor.rs
index bf3008774f0ea94c477268e709507a76df433db0..e3be6bff2fa88b4191d9b3fdc8bccf665d4ac580 100644 (file)
--- a/lightning/src/chain/channelmonitor.rs
+++ b/lightning/src/chain/channelmonitor.rs
@@ -2339,8 +2339,16 @@ impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitorImpl<Signer> {
                F::Target: FeeEstimator,
                L::Target: Logger,
        {
-               log_info!(logger, "Applying update to monitor {}, bringing update_id from {} to {} with {} changes.",
-                       log_funding_info!(self), self.latest_update_id, updates.update_id, updates.updates.len());
+               if self.latest_update_id == CLOSED_CHANNEL_UPDATE_ID && updates.update_id == CLOSED_CHANNEL_UPDATE_ID {
+                       log_info!(logger, "Applying post-force-closed update to monitor {} with {} change(s).",
+                               log_funding_info!(self), updates.updates.len());
+               } else if updates.update_id == CLOSED_CHANNEL_UPDATE_ID {
+                       log_info!(logger, "Applying force close update to monitor {} with {} change(s).",
+                               log_funding_info!(self), updates.updates.len());
+               } else {
+                       log_info!(logger, "Applying update to monitor {}, bringing update_id from {} to {} with {} change(s).",
+                               log_funding_info!(self), self.latest_update_id, updates.update_id, updates.updates.len());
+               }
                // ChannelMonitor updates may be applied after force close if we receive a preimage for a
                // broadcasted commitment transaction HTLC output that we'd like to claim on-chain. If this
                // is the case, we no longer have guaranteed access to the monitor's update ID, so we use a
@@ -2407,6 +2415,7 @@ impl<Signer: WriteableEcdsaChannelSigner> ChannelMonitorImpl<Signer> {
                                                                _ => false,
                                                        }).is_some();
                                                if detected_funding_spend {
+                                                       log_trace!(logger, "Avoiding commitment broadcast, already detected confirmed spend onchain");
                                                        continue;
                                                }
                                                self.broadcast_latest_holder_commitment_txn(broadcaster, logger);