1 pub mod bitcoind_client;
7 use crate::bitcoind_client::BitcoindClient;
8 use crate::disk::FilesystemLogger;
9 use bitcoin::blockdata::constants::genesis_block;
10 use bitcoin::blockdata::transaction::Transaction;
11 use bitcoin::consensus::encode;
12 use bitcoin::network::constants::Network;
13 use bitcoin::secp256k1::Secp256k1;
14 use bitcoin::BlockHash;
15 use bitcoin_bech32::WitnessProgram;
17 use lightning::chain::chaininterface::{BroadcasterInterface, ConfirmationTarget, FeeEstimator};
18 use lightning::chain::keysinterface::{InMemorySigner, KeysInterface, KeysManager, Recipient};
19 use lightning::chain::{chainmonitor, ChannelMonitorUpdateStatus};
20 use lightning::chain::{Filter, Watch};
21 use lightning::ln::channelmanager;
22 use lightning::ln::channelmanager::{
23 ChainParameters, ChannelManagerReadArgs, SimpleArcChannelManager,
25 use lightning::ln::peer_handler::{IgnoringMessageHandler, MessageHandler, SimpleArcPeerManager};
26 use lightning::ln::{PaymentHash, PaymentPreimage, PaymentSecret};
27 use lightning::onion_message::SimpleArcOnionMessenger;
28 use lightning::routing::gossip;
29 use lightning::routing::gossip::{NodeId, P2PGossipSync};
30 use lightning::routing::scoring::ProbabilisticScorer;
31 use lightning::util::config::UserConfig;
32 use lightning::util::events::{Event, PaymentPurpose};
33 use lightning::util::ser::ReadableArgs;
34 use lightning_background_processor::{BackgroundProcessor, GossipSync};
35 use lightning_block_sync::init;
36 use lightning_block_sync::poll;
37 use lightning_block_sync::SpvClient;
38 use lightning_block_sync::UnboundedCache;
39 use lightning_invoice::payment;
40 use lightning_invoice::utils::DefaultRouter;
41 use lightning_net_tokio::SocketDescriptor;
42 use lightning_persister::FilesystemPersister;
43 use rand::{thread_rng, Rng};
44 use std::collections::hash_map::Entry;
45 use std::collections::HashMap;
46 use std::convert::TryInto;
53 use std::sync::atomic::{AtomicBool, Ordering};
54 use std::sync::{Arc, Mutex};
55 use std::time::{Duration, SystemTime};
57 pub(crate) enum HTLCStatus {
63 pub(crate) struct MillisatAmount(Option<u64>);
65 impl fmt::Display for MillisatAmount {
66 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
68 Some(amt) => write!(f, "{}", amt),
69 None => write!(f, "unknown"),
74 pub(crate) struct PaymentInfo {
75 preimage: Option<PaymentPreimage>,
76 secret: Option<PaymentSecret>,
78 amt_msat: MillisatAmount,
81 pub(crate) type PaymentInfoStorage = Arc<Mutex<HashMap<PaymentHash, PaymentInfo>>>;
83 type ChainMonitor = chainmonitor::ChainMonitor<
85 Arc<dyn Filter + Send + Sync>,
88 Arc<FilesystemLogger>,
89 Arc<FilesystemPersister>,
92 pub(crate) type PeerManager = SimpleArcPeerManager<
97 dyn chain::Access + Send + Sync,
101 pub(crate) type ChannelManager =
102 SimpleArcChannelManager<ChainMonitor, BitcoindClient, BitcoindClient, FilesystemLogger>;
104 pub(crate) type InvoicePayer<E> =
105 payment::InvoicePayer<Arc<ChannelManager>, Router, Arc<FilesystemLogger>, E>;
107 type Router = DefaultRouter<
109 Arc<FilesystemLogger>,
110 Arc<Mutex<ProbabilisticScorer<Arc<NetworkGraph>, Arc<FilesystemLogger>>>>,
113 pub(crate) type NetworkGraph = gossip::NetworkGraph<Arc<FilesystemLogger>>;
115 type OnionMessenger = SimpleArcOnionMessenger<FilesystemLogger>;
117 async fn handle_ldk_events(
118 channel_manager: &Arc<ChannelManager>, bitcoind_client: &BitcoindClient,
119 network_graph: &NetworkGraph, keys_manager: &KeysManager,
120 inbound_payments: &PaymentInfoStorage, outbound_payments: &PaymentInfoStorage,
121 network: Network, event: &Event,
124 Event::FundingGenerationReady {
125 temporary_channel_id,
126 counterparty_node_id,
127 channel_value_satoshis,
131 // Construct the raw transaction with one output, that is paid the amount of the
133 let addr = WitnessProgram::from_scriptpubkey(
136 Network::Bitcoin => bitcoin_bech32::constants::Network::Bitcoin,
137 Network::Testnet => bitcoin_bech32::constants::Network::Testnet,
138 Network::Regtest => bitcoin_bech32::constants::Network::Regtest,
139 Network::Signet => bitcoin_bech32::constants::Network::Signet,
142 .expect("Lightning funding tx should always be to a SegWit output")
144 let mut outputs = vec![HashMap::with_capacity(1)];
145 outputs[0].insert(addr, *channel_value_satoshis as f64 / 100_000_000.0);
146 let raw_tx = bitcoind_client.create_raw_transaction(outputs).await;
148 // Have your wallet put the inputs into the transaction such that the output is
150 let funded_tx = bitcoind_client.fund_raw_transaction(raw_tx).await;
152 // Sign the final funding transaction and broadcast it.
153 let signed_tx = bitcoind_client.sign_raw_transaction_with_wallet(funded_tx.hex).await;
154 assert_eq!(signed_tx.complete, true);
155 let final_tx: Transaction =
156 encode::deserialize(&hex_utils::to_vec(&signed_tx.hex).unwrap()).unwrap();
157 // Give the funding transaction back to LDK for opening the channel.
159 .funding_transaction_generated(
160 &temporary_channel_id,
161 counterparty_node_id,
167 "\nERROR: Channel went away before we could fund it. The peer disconnected or refused the channel.");
169 io::stdout().flush().unwrap();
172 Event::PaymentReceived { payment_hash, purpose, amount_msat } => {
174 "\nEVENT: received payment from payment hash {} of {} millisatoshis",
175 hex_utils::hex_str(&payment_hash.0),
179 io::stdout().flush().unwrap();
180 let payment_preimage = match purpose {
181 PaymentPurpose::InvoicePayment { payment_preimage, .. } => *payment_preimage,
182 PaymentPurpose::SpontaneousPayment(preimage) => Some(*preimage),
184 channel_manager.claim_funds(payment_preimage.unwrap());
186 Event::PaymentClaimed { payment_hash, purpose, amount_msat } => {
188 "\nEVENT: claimed payment from payment hash {} of {} millisatoshis",
189 hex_utils::hex_str(&payment_hash.0),
193 io::stdout().flush().unwrap();
194 let (payment_preimage, payment_secret) = match purpose {
195 PaymentPurpose::InvoicePayment { payment_preimage, payment_secret, .. } => {
196 (*payment_preimage, Some(*payment_secret))
198 PaymentPurpose::SpontaneousPayment(preimage) => (Some(*preimage), None),
200 let mut payments = inbound_payments.lock().unwrap();
201 match payments.entry(*payment_hash) {
202 Entry::Occupied(mut e) => {
203 let payment = e.get_mut();
204 payment.status = HTLCStatus::Succeeded;
205 payment.preimage = payment_preimage;
206 payment.secret = payment_secret;
208 Entry::Vacant(e) => {
209 e.insert(PaymentInfo {
210 preimage: payment_preimage,
211 secret: payment_secret,
212 status: HTLCStatus::Succeeded,
213 amt_msat: MillisatAmount(Some(*amount_msat)),
218 Event::PaymentSent { payment_preimage, payment_hash, fee_paid_msat, .. } => {
219 let mut payments = outbound_payments.lock().unwrap();
220 for (hash, payment) in payments.iter_mut() {
221 if *hash == *payment_hash {
222 payment.preimage = Some(*payment_preimage);
223 payment.status = HTLCStatus::Succeeded;
225 "\nEVENT: successfully sent payment of {} millisatoshis{} from \
226 payment hash {:?} with preimage {:?}",
228 if let Some(fee) = fee_paid_msat {
229 format!(" (fee {} msat)", fee)
233 hex_utils::hex_str(&payment_hash.0),
234 hex_utils::hex_str(&payment_preimage.0)
237 io::stdout().flush().unwrap();
241 Event::OpenChannelRequest { .. } => {
242 // Unreachable, we don't set manually_accept_inbound_channels
244 Event::PaymentPathSuccessful { .. } => {}
245 Event::PaymentPathFailed { .. } => {}
246 Event::ProbeSuccessful { .. } => {}
247 Event::ProbeFailed { .. } => {}
248 Event::PaymentFailed { payment_hash, .. } => {
250 "\nEVENT: Failed to send payment to payment hash {:?}: exhausted payment retry attempts",
251 hex_utils::hex_str(&payment_hash.0)
254 io::stdout().flush().unwrap();
256 let mut payments = outbound_payments.lock().unwrap();
257 if payments.contains_key(&payment_hash) {
258 let payment = payments.get_mut(&payment_hash).unwrap();
259 payment.status = HTLCStatus::Failed;
262 Event::PaymentForwarded {
266 claim_from_onchain_tx,
268 let read_only_network_graph = network_graph.read_only();
269 let nodes = read_only_network_graph.nodes();
270 let channels = channel_manager.list_channels();
272 let node_str = |channel_id: &Option<[u8; 32]>| match channel_id {
273 None => String::new(),
274 Some(channel_id) => match channels.iter().find(|c| c.channel_id == *channel_id) {
275 None => String::new(),
277 match nodes.get(&NodeId::from_pubkey(&channel.counterparty.node_id)) {
278 None => "private node".to_string(),
279 Some(node) => match &node.announcement_info {
280 None => "unnamed node".to_string(),
281 Some(announcement) => {
282 format!("node {}", announcement.alias)
289 let channel_str = |channel_id: &Option<[u8; 32]>| {
291 .map(|channel_id| format!(" with channel {}", hex_utils::hex_str(&channel_id)))
295 format!(" from {}{}", node_str(prev_channel_id), channel_str(prev_channel_id));
297 format!(" to {}{}", node_str(next_channel_id), channel_str(next_channel_id));
299 let from_onchain_str = if *claim_from_onchain_tx {
300 "from onchain downstream claim"
302 "from HTLC fulfill message"
304 if let Some(fee_earned) = fee_earned_msat {
306 "\nEVENT: Forwarded payment{}{}, earning {} msat {}",
307 from_prev_str, to_next_str, fee_earned, from_onchain_str
311 "\nEVENT: Forwarded payment{}{}, claiming onchain {}",
312 from_prev_str, to_next_str, from_onchain_str
316 io::stdout().flush().unwrap();
318 Event::HTLCHandlingFailed { .. } => {}
319 Event::PendingHTLCsForwardable { time_forwardable } => {
320 let forwarding_channel_manager = channel_manager.clone();
321 let min = time_forwardable.as_millis() as u64;
322 tokio::spawn(async move {
323 let millis_to_sleep = thread_rng().gen_range(min, min * 5) as u64;
324 tokio::time::sleep(Duration::from_millis(millis_to_sleep)).await;
325 forwarding_channel_manager.process_pending_htlc_forwards();
328 Event::SpendableOutputs { outputs } => {
329 let destination_address = bitcoind_client.get_new_address().await;
330 let output_descriptors = &outputs.iter().map(|a| a).collect::<Vec<_>>();
332 bitcoind_client.get_est_sat_per_1000_weight(ConfirmationTarget::Normal);
333 let spending_tx = keys_manager
334 .spend_spendable_outputs(
337 destination_address.script_pubkey(),
342 bitcoind_client.broadcast_transaction(&spending_tx);
344 Event::ChannelClosed { channel_id, reason, user_channel_id: _ } => {
346 "\nEVENT: Channel {} closed due to: {:?}",
347 hex_utils::hex_str(channel_id),
351 io::stdout().flush().unwrap();
353 Event::DiscardFunding { .. } => {
354 // A "real" node should probably "lock" the UTXOs spent in funding transactions until
355 // the funding transaction either confirms, or this event is generated.
360 async fn start_ldk() {
361 let args = match cli::parse_startup_args() {
362 Ok(user_args) => user_args,
366 // Initialize the LDK data directory if necessary.
367 let ldk_data_dir = format!("{}/.ldk", args.ldk_storage_dir_path);
368 fs::create_dir_all(ldk_data_dir.clone()).unwrap();
370 // Initialize our bitcoind client.
371 let bitcoind_client = match BitcoindClient::new(
372 args.bitcoind_rpc_host.clone(),
373 args.bitcoind_rpc_port,
374 args.bitcoind_rpc_username.clone(),
375 args.bitcoind_rpc_password.clone(),
376 tokio::runtime::Handle::current(),
380 Ok(client) => Arc::new(client),
382 println!("Failed to connect to bitcoind client: {}", e);
387 // Check that the bitcoind we've connected to is running the network we expect
388 let bitcoind_chain = bitcoind_client.get_blockchain_info().await.chain;
390 != match args.network {
391 bitcoin::Network::Bitcoin => "main",
392 bitcoin::Network::Testnet => "test",
393 bitcoin::Network::Regtest => "regtest",
394 bitcoin::Network::Signet => "signet",
397 "Chain argument ({}) didn't match bitcoind chain ({})",
398 args.network, bitcoind_chain
404 // Step 1: Initialize the FeeEstimator
406 // BitcoindClient implements the FeeEstimator trait, so it'll act as our fee estimator.
407 let fee_estimator = bitcoind_client.clone();
409 // Step 2: Initialize the Logger
410 let logger = Arc::new(FilesystemLogger::new(ldk_data_dir.clone()));
412 // Step 3: Initialize the BroadcasterInterface
414 // BitcoindClient implements the BroadcasterInterface trait, so it'll act as our transaction
416 let broadcaster = bitcoind_client.clone();
418 // Step 4: Initialize Persist
419 let persister = Arc::new(FilesystemPersister::new(ldk_data_dir.clone()));
421 // Step 5: Initialize the ChainMonitor
422 let chain_monitor: Arc<ChainMonitor> = Arc::new(chainmonitor::ChainMonitor::new(
426 fee_estimator.clone(),
430 // Step 6: Initialize the KeysManager
432 // The key seed that we use to derive the node privkey (that corresponds to the node pubkey) and
433 // other secret key material.
434 let keys_seed_path = format!("{}/keys_seed", ldk_data_dir.clone());
435 let keys_seed = if let Ok(seed) = fs::read(keys_seed_path.clone()) {
436 assert_eq!(seed.len(), 32);
437 let mut key = [0; 32];
438 key.copy_from_slice(&seed);
441 let mut key = [0; 32];
442 thread_rng().fill_bytes(&mut key);
443 match File::create(keys_seed_path.clone()) {
445 f.write_all(&key).expect("Failed to write node keys seed to disk");
446 f.sync_all().expect("Failed to sync node keys seed to disk");
449 println!("ERROR: Unable to create keys seed file {}: {}", keys_seed_path, e);
455 let cur = SystemTime::now().duration_since(SystemTime::UNIX_EPOCH).unwrap();
456 let keys_manager = Arc::new(KeysManager::new(&keys_seed, cur.as_secs(), cur.subsec_nanos()));
458 // Step 7: Read ChannelMonitor state from disk
459 let mut channelmonitors = persister.read_channelmonitors(keys_manager.clone()).unwrap();
461 // Step 8: Poll for the best chain tip, which may be used by the channel manager & spv client
462 let polled_chain_tip = init::validate_best_block_header(bitcoind_client.as_ref())
464 .expect("Failed to fetch best block header and best block");
466 // Step 9: Initialize the ChannelManager
467 let mut user_config = UserConfig::default();
468 user_config.channel_handshake_limits.force_announced_channel_preference = false;
469 let mut restarting_node = true;
470 let (channel_manager_blockhash, channel_manager) = {
471 if let Ok(mut f) = fs::File::open(format!("{}/manager", ldk_data_dir.clone())) {
472 let mut channel_monitor_mut_references = Vec::new();
473 for (_, channel_monitor) in channelmonitors.iter_mut() {
474 channel_monitor_mut_references.push(channel_monitor);
476 let read_args = ChannelManagerReadArgs::new(
477 keys_manager.clone(),
478 fee_estimator.clone(),
479 chain_monitor.clone(),
483 channel_monitor_mut_references,
485 <(BlockHash, ChannelManager)>::read(&mut f, read_args).unwrap()
487 // We're starting a fresh node.
488 restarting_node = false;
490 let polled_best_block = polled_chain_tip.to_best_block();
491 let polled_best_block_hash = polled_best_block.block_hash();
493 ChainParameters { network: args.network, best_block: polled_best_block };
494 let fresh_channel_manager = channelmanager::ChannelManager::new(
495 fee_estimator.clone(),
496 chain_monitor.clone(),
499 keys_manager.clone(),
503 (polled_best_block_hash, fresh_channel_manager)
507 // Step 10: Sync ChannelMonitors and ChannelManager to chain tip
508 let mut chain_listener_channel_monitors = Vec::new();
509 let mut cache = UnboundedCache::new();
510 let chain_tip = if restarting_node {
511 let mut chain_listeners = vec![(
512 channel_manager_blockhash,
513 &channel_manager as &(dyn chain::Listen + Send + Sync),
516 for (blockhash, channel_monitor) in channelmonitors.drain(..) {
517 let outpoint = channel_monitor.get_funding_txo().0;
518 chain_listener_channel_monitors.push((
520 (channel_monitor, broadcaster.clone(), fee_estimator.clone(), logger.clone()),
525 for monitor_listener_info in chain_listener_channel_monitors.iter_mut() {
526 chain_listeners.push((
527 monitor_listener_info.0,
528 &monitor_listener_info.1 as &(dyn chain::Listen + Send + Sync),
532 init::synchronize_listeners(
533 bitcoind_client.as_ref(),
544 // Step 11: Give ChannelMonitors to ChainMonitor
545 for item in chain_listener_channel_monitors.drain(..) {
546 let channel_monitor = item.1 .0;
547 let funding_outpoint = item.2;
549 chain_monitor.watch_channel(funding_outpoint, channel_monitor),
550 ChannelMonitorUpdateStatus::Completed
554 // Step 12: Optional: Initialize the P2PGossipSync
555 let genesis = genesis_block(args.network).header.block_hash();
556 let network_graph_path = format!("{}/network_graph", ldk_data_dir.clone());
558 Arc::new(disk::read_network(Path::new(&network_graph_path), genesis, logger.clone()));
559 let gossip_sync = Arc::new(P2PGossipSync::new(
560 Arc::clone(&network_graph),
561 None::<Arc<dyn chain::Access + Send + Sync>>,
565 // Step 13: Initialize the PeerManager
566 let channel_manager: Arc<ChannelManager> = Arc::new(channel_manager);
567 let onion_messenger: Arc<OnionMessenger> = Arc::new(OnionMessenger::new(
568 Arc::clone(&keys_manager),
570 IgnoringMessageHandler {},
572 let mut ephemeral_bytes = [0; 32];
573 let current_time = SystemTime::now().duration_since(SystemTime::UNIX_EPOCH).unwrap().as_secs();
574 rand::thread_rng().fill_bytes(&mut ephemeral_bytes);
575 let lightning_msg_handler = MessageHandler {
576 chan_handler: channel_manager.clone(),
577 route_handler: gossip_sync.clone(),
578 onion_message_handler: onion_messenger.clone(),
580 let peer_manager: Arc<PeerManager> = Arc::new(PeerManager::new(
581 lightning_msg_handler,
582 keys_manager.get_node_secret(Recipient::Node).unwrap(),
583 current_time.try_into().unwrap(),
586 IgnoringMessageHandler {},
590 // Step 14: Initialize networking
592 let peer_manager_connection_handler = peer_manager.clone();
593 let listening_port = args.ldk_peer_listening_port;
594 let stop_listen_connect = Arc::new(AtomicBool::new(false));
595 let stop_listen = Arc::clone(&stop_listen_connect);
596 tokio::spawn(async move {
597 let listener = tokio::net::TcpListener::bind(format!("0.0.0.0:{}", listening_port))
599 .expect("Failed to bind to listen port - is something else already listening on it?");
601 let peer_mgr = peer_manager_connection_handler.clone();
602 let tcp_stream = listener.accept().await.unwrap().0;
603 if stop_listen.load(Ordering::Acquire) {
606 tokio::spawn(async move {
607 lightning_net_tokio::setup_inbound(
609 tcp_stream.into_std().unwrap(),
616 // Step 15: Connect and Disconnect Blocks
617 let channel_manager_listener = channel_manager.clone();
618 let chain_monitor_listener = chain_monitor.clone();
619 let bitcoind_block_source = bitcoind_client.clone();
620 let network = args.network;
621 tokio::spawn(async move {
622 let chain_poller = poll::ChainPoller::new(bitcoind_block_source.as_ref(), network);
623 let chain_listener = (chain_monitor_listener, channel_manager_listener);
624 let mut spv_client = SpvClient::new(chain_tip, chain_poller, &mut cache, &chain_listener);
626 spv_client.poll_best_tip().await.unwrap();
627 tokio::time::sleep(Duration::from_secs(1)).await;
631 // Step 16: Handle LDK Events
632 let channel_manager_event_listener = channel_manager.clone();
633 let keys_manager_listener = keys_manager.clone();
634 // TODO: persist payment info to disk
635 let inbound_payments: PaymentInfoStorage = Arc::new(Mutex::new(HashMap::new()));
636 let outbound_payments: PaymentInfoStorage = Arc::new(Mutex::new(HashMap::new()));
637 let inbound_pmts_for_events = inbound_payments.clone();
638 let outbound_pmts_for_events = outbound_payments.clone();
639 let network = args.network;
640 let bitcoind_rpc = bitcoind_client.clone();
641 let network_graph_events = network_graph.clone();
642 let handle = tokio::runtime::Handle::current();
643 let event_handler = move |event: &Event| {
644 handle.block_on(handle_ldk_events(
645 &channel_manager_event_listener,
647 &network_graph_events,
648 &keys_manager_listener,
649 &inbound_pmts_for_events,
650 &outbound_pmts_for_events,
656 // Step 17: Initialize routing ProbabilisticScorer
657 let scorer_path = format!("{}/scorer", ldk_data_dir.clone());
658 let scorer = Arc::new(Mutex::new(disk::read_scorer(
659 Path::new(&scorer_path),
660 Arc::clone(&network_graph),
664 // Step 18: Create InvoicePayer
665 let router = DefaultRouter::new(
666 network_graph.clone(),
668 keys_manager.get_secure_random_bytes(),
671 let invoice_payer = Arc::new(InvoicePayer::new(
672 channel_manager.clone(),
676 payment::Retry::Timeout(Duration::from_secs(10)),
679 // Step 19: Persist ChannelManager and NetworkGraph
680 let persister = Arc::new(FilesystemPersister::new(ldk_data_dir.clone()));
682 // Step 20: Background Processing
683 let background_processor = BackgroundProcessor::start(
685 invoice_payer.clone(),
686 chain_monitor.clone(),
687 channel_manager.clone(),
688 GossipSync::p2p(gossip_sync.clone()),
689 peer_manager.clone(),
691 Some(scorer.clone()),
694 // Regularly reconnect to channel peers.
695 let connect_cm = Arc::clone(&channel_manager);
696 let connect_pm = Arc::clone(&peer_manager);
697 let peer_data_path = format!("{}/channel_peer_data", ldk_data_dir.clone());
698 let stop_connect = Arc::clone(&stop_listen_connect);
699 tokio::spawn(async move {
700 let mut interval = tokio::time::interval(Duration::from_secs(1));
702 interval.tick().await;
703 match disk::read_channel_peer_data(Path::new(&peer_data_path)) {
705 let peers = connect_pm.get_peer_node_ids();
706 for node_id in connect_cm
709 .map(|chan| chan.counterparty.node_id)
710 .filter(|id| !peers.contains(id))
712 if stop_connect.load(Ordering::Acquire) {
715 for (pubkey, peer_addr) in info.iter() {
716 if *pubkey == node_id {
717 let _ = cli::do_connect_peer(
720 Arc::clone(&connect_pm),
727 Err(e) => println!("ERROR: errored reading channel peer info from disk: {:?}", e),
732 // Regularly broadcast our node_announcement. This is only required (or possible) if we have
733 // some public channels, and is only useful if we have public listen address(es) to announce.
734 // In a production environment, this should occur only after the announcement of new channels
735 // to avoid churn in the global network graph.
736 let peer_man = Arc::clone(&peer_manager);
737 let network = args.network;
738 if !args.ldk_announced_listen_addr.is_empty() {
739 tokio::spawn(async move {
740 let mut interval = tokio::time::interval(Duration::from_secs(60));
742 interval.tick().await;
743 peer_man.broadcast_node_announcement(
745 args.ldk_announced_node_name,
746 args.ldk_announced_listen_addr.clone(),
753 cli::poll_for_user_input(
754 Arc::clone(&invoice_payer),
755 Arc::clone(&peer_manager),
756 Arc::clone(&channel_manager),
757 Arc::clone(&keys_manager),
758 Arc::clone(&network_graph),
759 Arc::clone(&onion_messenger),
762 ldk_data_dir.clone(),
768 // Disconnect our peers and stop accepting new connections. This ensures we don't continue
769 // updating our channel data after we've stopped the background processor.
770 stop_listen_connect.store(true, Ordering::Release);
771 peer_manager.disconnect_all_peers();
773 // Stop the background processor.
774 background_processor.stop().unwrap();
778 pub async fn main() {
779 #[cfg(not(target_os = "windows"))]
781 // Catch Ctrl-C with a dummy signal handler.
783 let mut new_action: libc::sigaction = core::mem::zeroed();
784 let mut old_action: libc::sigaction = core::mem::zeroed();
786 extern "C" fn dummy_handler(
787 _: libc::c_int, _: *const libc::siginfo_t, _: *const libc::c_void,
791 new_action.sa_sigaction = dummy_handler as libc::sighandler_t;
792 new_action.sa_flags = libc::SA_SIGINFO;
796 &new_action as *const libc::sigaction,
797 &mut old_action as *mut libc::sigaction,