Support only one GossipSync in BackgroundProcessor

fuzz/src/full_stack.rs

@@ -163,7 +163,7 @@ type ChannelMan = ChannelManager<
 	EnforcingSigner,
 	Arc<chainmonitor::ChainMonitor<EnforcingSigner, Arc<dyn chain::Filter>, Arc<TestBroadcaster>, Arc<FuzzEstimator>, Arc<dyn Logger>, Arc<TestPersister>>>,
 	Arc<TestBroadcaster>, Arc<KeyProvider>, Arc<FuzzEstimator>, Arc<dyn Logger>>;
-type PeerMan<'a> = PeerManager<Peer<'a>, Arc<ChannelMan>, Arc<P2PGossipSync<Arc<NetworkGraph>, Arc<dyn chain::Access>, Arc<dyn Logger>>>, Arc<dyn Logger>, IgnoringMessageHandler>;
+type PeerMan<'a> = PeerManager<Peer<'a>, Arc<ChannelMan>, Arc<P2PGossipSync<Arc<NetworkGraph<Arc<dyn Logger>>>, Arc<dyn chain::Access>, Arc<dyn Logger>>>, Arc<dyn Logger>, IgnoringMessageHandler>;
 
 struct MoneyLossDetector<'a> {
 	manager: Arc<ChannelMan>,
@@ -395,7 +395,7 @@ pub fn do_test(data: &[u8], logger: &Arc<dyn Logger>) {
 	// it's easier to just increment the counter here so the keys don't change.
 	keys_manager.counter.fetch_sub(1, Ordering::AcqRel);
 	let our_id = PublicKey::from_secret_key(&Secp256k1::signing_only(), &keys_manager.get_node_secret(Recipient::Node).unwrap());
-	let network_graph = Arc::new(NetworkGraph::new(genesis_block(network).block_hash()));
+	let network_graph = Arc::new(NetworkGraph::new(genesis_block(network).block_hash(), Arc::clone(&logger)));
 	let gossip_sync = Arc::new(P2PGossipSync::new(Arc::clone(&network_graph), None, Arc::clone(&logger)));
 	let scorer = FixedPenaltyScorer::with_penalty(0);
 
@@ -460,7 +460,7 @@ pub fn do_test(data: &[u8], logger: &Arc<dyn Logger>) {
 					final_cltv_expiry_delta: 42,
 				};
 				let random_seed_bytes: [u8; 32] = keys_manager.get_secure_random_bytes();
-				let route = match find_route(&our_id, &params, &network_graph, None, Arc::clone(&logger), &scorer, &random_seed_bytes) {
+				let route = match find_route(&our_id, &params, &network_graph.read_only(), None, Arc::clone(&logger), &scorer, &random_seed_bytes) {
 					Ok(route) => route,
 					Err(_) => return,
 				};
@@ -484,7 +484,7 @@ pub fn do_test(data: &[u8], logger: &Arc<dyn Logger>) {
 					final_cltv_expiry_delta: 42,
 				};
 				let random_seed_bytes: [u8; 32] = keys_manager.get_secure_random_bytes();
-				let mut route = match find_route(&our_id, &params, &network_graph, None, Arc::clone(&logger), &scorer, &random_seed_bytes) {
+				let mut route = match find_route(&our_id, &params, &network_graph.read_only(), None, Arc::clone(&logger), &scorer, &random_seed_bytes) {
 					Ok(route) => route,
 					Err(_) => return,
 				};

fuzz/src/process_network_graph.rs

@@ -1,22 +1,27 @@
 // Imports that need to be added manually
+use lightning::util::logger::Logger;
 use lightning_rapid_gossip_sync::RapidGossipSync;
+
 use utils::test_logger;
 
+use std::sync::Arc;
+
 /// Actual fuzz test, method signature and name are fixed
-fn do_test(data: &[u8]) {
+fn do_test<Out: test_logger::Output>(data: &[u8], out: Out) {
 	let block_hash = bitcoin::BlockHash::default();
-	let network_graph = lightning::routing::gossip::NetworkGraph::new(block_hash);
+	let logger: Arc<dyn Logger> = Arc::new(test_logger::TestLogger::new("".to_owned(), out));
+	let network_graph = lightning::routing::gossip::NetworkGraph::new(block_hash, logger);
 	let rapid_sync = RapidGossipSync::new(&network_graph);
 	let _ = rapid_sync.update_network_graph(data);
 }
 
 /// Method that needs to be added manually, {name}_test
-pub fn process_network_graph_test<Out: test_logger::Output>(data: &[u8], _out: Out) {
-	do_test(data);
+pub fn process_network_graph_test<Out: test_logger::Output>(data: &[u8], out: Out) {
+	do_test(data, out);
 }
 
 /// Method that needs to be added manually, {name}_run
 #[no_mangle]
 pub extern "C" fn process_network_graph_run(data: *const u8, datalen: usize) {
-	do_test(unsafe { std::slice::from_raw_parts(data, datalen) });
+	do_test(unsafe { std::slice::from_raw_parts(data, datalen) }, test_logger::DevNull {});
 }

fuzz/src/router.rs

@@ -162,7 +162,7 @@ pub fn do_test<Out: test_logger::Output>(data: &[u8], out: Out) {
 	let logger: Arc<dyn Logger> = Arc::new(test_logger::TestLogger::new("".to_owned(), out));
 
 	let our_pubkey = get_pubkey!();
-	let net_graph = NetworkGraph::new(genesis_block(Network::Bitcoin).header.block_hash());
+	let net_graph = NetworkGraph::new(genesis_block(Network::Bitcoin).header.block_hash(), Arc::clone(&logger));
 
 	let mut node_pks = HashSet::new();
 	let mut scid = 42;
@@ -267,7 +267,7 @@ pub fn do_test<Out: test_logger::Output>(data: &[u8], out: Out) {
 						final_value_msat: slice_to_be64(get_slice!(8)),
 						final_cltv_expiry_delta: slice_to_be32(get_slice!(4)),
 					};
-					let _ = find_route(&our_pubkey, &route_params, &net_graph,
+					let _ = find_route(&our_pubkey, &route_params, &net_graph.read_only(),
 						first_hops.map(|c| c.iter().collect::<Vec<_>>()).as_ref().map(|a| a.as_slice()),
 						Arc::clone(&logger), &scorer, &random_seed_bytes);
 				}