chore: nits that were left in bitfield dist (#1665)

polkadot/node/network/bitfield-distribution/src/lib.rs

@@ -127,6 +127,8 @@ impl PerRelayParentData {
 	}
 }
 
+const TARGET: &'static str = "bitd";
+
 /// The bitfield distribution subsystem.
 pub struct BitfieldDistribution;
 
@@ -144,22 +146,22 @@ impl BitfieldDistribution {
 				FromOverseer::Communication {
 					msg: BitfieldDistributionMessage::DistributeBitfield(hash, signed_availability),
 				} => {
-					trace!(target: "bitd", "Processing DistributeBitfield");
+					trace!(target: TARGET, "Processing DistributeBitfield");
 					handle_bitfield_distribution(&mut ctx, &mut state, hash, signed_availability)
 						.await?;
 				}
 				FromOverseer::Communication {
 					msg: BitfieldDistributionMessage::NetworkBridgeUpdateV1(event),
 				} => {
-					trace!(target: "bitd", "Processing NetworkMessage");
+					trace!(target: TARGET, "Processing NetworkMessage");
 					// a network message was received
 					if let Err(e) = handle_network_msg(&mut ctx, &mut state, event).await {
-						warn!(target: "bitd", "Failed to handle incomming network messages: {:?}", e);
+						warn!(target: TARGET, "Failed to handle incomming network messages: {:?}", e);
 					}
 				}
 				FromOverseer::Signal(OverseerSignal::ActiveLeaves(ActiveLeavesUpdate { activated, deactivated })) => {
 					for relay_parent in activated {
-						trace!(target: "bitd", "Start {:?}", relay_parent);
+						trace!(target: TARGET, "Start {:?}", relay_parent);
 						// query basic system parameters once
 						if let Some((validator_set, signing_context)) =
 							query_basics(&mut ctx, relay_parent).await?
@@ -181,15 +183,15 @@ impl BitfieldDistribution {
 					}
 
 					for relay_parent in deactivated {
-						trace!(target: "bitd", "Stop {:?}", relay_parent);
+						trace!(target: TARGET, "Stop {:?}", relay_parent);
 						// defer the cleanup to the view change
 					}
 				}
 				FromOverseer::Signal(OverseerSignal::BlockFinalized(hash)) => {
-					trace!(target: "bitd", "Block finalized {:?}", hash);
+					trace!(target: TARGET, "Block finalized {:?}", hash);
 				}
 				FromOverseer::Signal(OverseerSignal::Conclude) => {
-					trace!(target: "bitd", "Conclude");
+					trace!(target: TARGET, "Conclude");
 					return Ok(());
 				}
 			}
@@ -206,7 +208,7 @@ async fn modify_reputation<Context>(
 where
 	Context: SubsystemContext<Message = BitfieldDistributionMessage>,
 {
-	trace!(target: "bitd", "Reputation change of {:?} for peer {:?}", rep, peer);
+	trace!(target: TARGET, "Reputation change of {:?} for peer {:?}", rep, peer);
 	ctx.send_message(AllMessages::NetworkBridge(
 		NetworkBridgeMessage::ReportPeer(peer, rep),
 	))
@@ -231,7 +233,7 @@ where
 		job_data
 	} else {
 		trace!(
-			target: "bitd",
+			target: TARGET,
 			"Not supposed to work on relay parent {} related data",
 			relay_parent
 		);
@@ -240,7 +242,7 @@ where
 	};
 	let validator_set = &job_data.validator_set;
 	if validator_set.is_empty() {
-		trace!(target: "bitd", "Validator set for {:?} is empty", relay_parent);
+		trace!(target: TARGET, "Validator set for {:?} is empty", relay_parent);
 		return Ok(());
 	}
 
@@ -248,7 +250,7 @@ where
 	let validator = if let Some(validator) = validator_set.get(validator_index) {
 		validator.clone()
 	} else {
-		trace!(target: "bitd", "Could not find a validator for index {}", validator_index);
+		trace!(target: TARGET, "Could not find a validator for index {}", validator_index);
 		return Ok(());
 	};
 
@@ -308,7 +310,7 @@ where
 
 	if interested_peers.is_empty() {
 		trace!(
-			target: "bitd",
+			target: TARGET,
 			"No peers are interested in gossip for relay parent {:?}",
 			message.relay_parent
 		);
@@ -334,12 +336,12 @@ async fn process_incoming_peer_message<Context>(
 where
 	Context: SubsystemContext<Message = BitfieldDistributionMessage>,
 {
-	// we don't care about this, not part of our view
+	// we don't care about this, not part of our view.
 	if !state.view.contains(&message.relay_parent) {
 		return modify_reputation(ctx, origin, COST_NOT_IN_VIEW).await;
 	}
 
-	// Ignore anything the overseer did not tell this subsystem to work on
+	// Ignore anything the overseer did not tell this subsystem to work on.
 	let mut job_data = state.per_relay_parent.get_mut(&message.relay_parent);
 	let job_data: &mut _ = if let Some(ref mut job_data) = job_data {
 		job_data
@@ -350,7 +352,7 @@ where
 	let validator_set = &job_data.validator_set;
 	if validator_set.is_empty() {
 		trace!(
-			target: "bitd",
+			target: TARGET,
 			"Validator set for relay parent {:?} is empty",
 			&message.relay_parent
 		);
@@ -391,7 +393,7 @@ where
 		// only relay_message a message of a validator once
 		if one_per_validator.get(&validator).is_some() {
 			trace!(
-				target: "bitd",
+				target: TARGET,
 				"Already received a message for validator at index {}",
 				validator_index
 			);
@@ -407,6 +409,7 @@ where
 		modify_reputation(ctx, origin, COST_SIGNATURE_INVALID).await
 	}
 }
+
 /// Deal with network bridge updates and track what needs to be tracked
 /// which depends on the message type received.
 async fn handle_network_msg<Context>(
@@ -435,7 +438,7 @@ where
 		NetworkBridgeEvent::PeerMessage(remote, message) => {
 			match message {
 				protocol_v1::BitfieldDistributionMessage::Bitfield(relay_parent, bitfield) => {
-					trace!(target: "bitd", "Received bitfield gossip from peer {:?}", &remote);
+					trace!(target: TARGET, "Received bitfield gossip from peer {:?}", &remote);
 					let gossiped_bitfield = BitfieldGossipMessage {
 						relay_parent,
 						signed_availability: bitfield,
@@ -455,7 +458,7 @@ fn handle_our_view_change(state: &mut ProtocolState, view: View) -> SubsystemRes
 	for added in state.view.difference(&old_view) {
 		if !state.per_relay_parent.contains_key(&added) {
 			warn!(
-				target: "bitd",
+				target: TARGET,
 				"Our view contains {} but the overseer never told use we should work on this",
 				&added
 			);
@@ -501,7 +504,7 @@ where
 					one_per_validator
 						.into_iter()
 						.filter(move |(validator, _message)| {
-							// ..except for the ones the peer already has
+							// ..except for the ones the peer already has.
 							job_data.message_from_validator_needed_by_peer(&origin, validator)
 						}),
 				)
@@ -598,7 +601,7 @@ where
 			SigningContext { parent_hash: relay_parent, session_index: s },
 		))),
 		(Err(e), _) | (_, Err(e)) => {
-			warn!(target: "bitd", "Failed to fetch basics from runtime API: {:?}", e);
+			warn!(target: TARGET, "Failed to fetch basics from runtime API: {:?}", e);
 			Ok(None)
 		}
 	}