f improve logging

Author: TheBlueMatt

lightning/src/ln/channel.rs

@@ -3644,6 +3644,10 @@ impl<Signer: WriteableEcdsaChannelSigner> Channel<Signer> {
 				if release_monitor { self.pending_monitor_updates.last().map(|upd| &upd.update) } else { None }));
 		}
 
+		let release_monitor = self.pending_monitor_updates.iter().all(|upd| !upd.blocked) && !hold_mon_update;
+		let release_state_str =
+			if hold_mon_update { "Holding" } else if release_monitor { "Releasing" } else { "Blocked" };
+
 		match self.free_holding_cell_htlcs(logger) {
 			(Some(_), htlcs_to_fail) => {
 				let mut additional_update = self.pending_monitor_updates.pop().unwrap().update;
@@ -3652,8 +3656,10 @@ impl<Signer: WriteableEcdsaChannelSigner> Channel<Signer> {
 				self.latest_monitor_update_id = monitor_update.update_id;
 				monitor_update.updates.append(&mut additional_update.updates);
 
+				log_debug!(logger, "Received a valid revoke_and_ack for channel {} with holding cell HTLCs freed. {} monitor update.",
+					log_bytes!(self.channel_id()), release_state_str);
+
 				self.monitor_updating_paused(false, true, false, to_forward_infos, revoked_htlcs, finalized_claimed_htlcs);
-				let release_monitor = self.pending_monitor_updates.iter().all(|upd| !upd.blocked) && !hold_mon_update;
 				self.pending_monitor_updates.push(PendingChannelMonitorUpdate {
 					update: monitor_update, blocked: !release_monitor,
 				});
@@ -3669,19 +3675,22 @@ impl<Signer: WriteableEcdsaChannelSigner> Channel<Signer> {
 					self.latest_monitor_update_id = monitor_update.update_id;
 					monitor_update.updates.append(&mut additional_update.updates);
 
-					log_debug!(logger, "Received a valid revoke_and_ack for channel {}. Responding with a commitment update with {} HTLCs failed.",
-						log_bytes!(self.channel_id()), update_fail_htlcs.len() + update_fail_malformed_htlcs.len());
+					log_debug!(logger, "Received a valid revoke_and_ack for channel {}. Responding with a commitment update with {} HTLCs failed. {} monitor update.",
+						log_bytes!(self.channel_id()),
+						update_fail_htlcs.len() + update_fail_malformed_htlcs.len(),
+						release_state_str);
+
 					self.monitor_updating_paused(false, true, false, to_forward_infos, revoked_htlcs, finalized_claimed_htlcs);
-					let release_monitor = self.pending_monitor_updates.iter().all(|upd| !upd.blocked) && !hold_mon_update;
 					self.pending_monitor_updates.push(PendingChannelMonitorUpdate {
 						update: monitor_update, blocked: !release_monitor,
 					});
 					Ok((htlcs_to_fail,
 						if release_monitor { self.pending_monitor_updates.last().map(|upd| &upd.update) } else { None }))
 				} else {
-					log_debug!(logger, "Received a valid revoke_and_ack for channel {} with no reply necessary.", log_bytes!(self.channel_id()));
+					log_debug!(logger, "Received a valid revoke_and_ack for channel {} with no reply necessary. {} monitor update.",
+						log_bytes!(self.channel_id()), release_state_str);
+
 					self.monitor_updating_paused(false, false, false, to_forward_infos, revoked_htlcs, finalized_claimed_htlcs);
-					let release_monitor = self.pending_monitor_updates.iter().all(|upd| !upd.blocked) && !hold_mon_update;
 					self.pending_monitor_updates.push(PendingChannelMonitorUpdate {
 						update: monitor_update, blocked: !release_monitor,
 					});