use bitcoin_bech32::WitnessProgram;
use lightning::chain;
use lightning::chain::chaininterface::{BroadcasterInterface, ConfirmationTarget, FeeEstimator};
-use lightning::chain::chainmonitor;
use lightning::chain::keysinterface::{InMemorySigner, KeysInterface, KeysManager, Recipient};
-use lightning::chain::{BestBlock, Filter, Watch};
+use lightning::chain::{chainmonitor, ChannelMonitorUpdateStatus};
+use lightning::chain::{Filter, Watch};
use lightning::ln::channelmanager;
use lightning::ln::channelmanager::{
ChainParameters, ChannelManagerReadArgs, SimpleArcChannelManager,
use rand::{thread_rng, Rng};
use std::collections::hash_map::Entry;
use std::collections::HashMap;
+use std::convert::TryInto;
use std::fmt;
use std::fs;
use std::fs::File;
use std::io;
use std::io::Write;
-use std::ops::Deref;
use std::path::Path;
use std::sync::atomic::{AtomicBool, Ordering};
use std::sync::{Arc, Mutex};
pub(crate) type ChannelManager =
SimpleArcChannelManager<ChainMonitor, BitcoindClient, BitcoindClient, FilesystemLogger>;
-pub(crate) type InvoicePayer<E> = payment::InvoicePayer<
- Arc<ChannelManager>,
- Router,
- Arc<Mutex<ProbabilisticScorer<Arc<NetworkGraph>, Arc<FilesystemLogger>>>>,
+pub(crate) type InvoicePayer<E> =
+ payment::InvoicePayer<Arc<ChannelManager>, Router, Arc<FilesystemLogger>, E>;
+
+type Router = DefaultRouter<
+ Arc<NetworkGraph>,
Arc<FilesystemLogger>,
- E,
+ Arc<Mutex<ProbabilisticScorer<Arc<NetworkGraph>, Arc<FilesystemLogger>>>>,
>;
-type Router = DefaultRouter<Arc<NetworkGraph>, Arc<FilesystemLogger>>;
-
pub(crate) type NetworkGraph = gossip::NetworkGraph<Arc<FilesystemLogger>>;
type OnionMessenger = SimpleArcOnionMessenger<FilesystemLogger>;
// Step 7: Read ChannelMonitor state from disk
let mut channelmonitors = persister.read_channelmonitors(keys_manager.clone()).unwrap();
- // Step 8: Initialize the ChannelManager
+ // Step 8: Poll for the best chain tip, which may be used by the channel manager & spv client
+ let polled_chain_tip = init::validate_best_block_header(bitcoind_client.as_ref())
+ .await
+ .expect("Failed to fetch best block header and best block");
+
+ // Step 9: Initialize the ChannelManager
let mut user_config = UserConfig::default();
user_config.channel_handshake_limits.force_announced_channel_preference = false;
let mut restarting_node = true;
} else {
// We're starting a fresh node.
restarting_node = false;
- let getinfo_resp = bitcoind_client.get_blockchain_info().await;
-
- let chain_params = ChainParameters {
- network: args.network,
- best_block: BestBlock::new(
- getinfo_resp.latest_blockhash,
- getinfo_resp.latest_height as u32,
- ),
- };
+
+ let polled_best_block = polled_chain_tip.to_best_block();
+ let polled_best_block_hash = polled_best_block.block_hash();
+ let chain_params =
+ ChainParameters { network: args.network, best_block: polled_best_block };
let fresh_channel_manager = channelmanager::ChannelManager::new(
fee_estimator.clone(),
chain_monitor.clone(),
user_config,
chain_params,
);
- (getinfo_resp.latest_blockhash, fresh_channel_manager)
+ (polled_best_block_hash, fresh_channel_manager)
}
};
- // Step 9: Sync ChannelMonitors and ChannelManager to chain tip
+ // Step 10: Sync ChannelMonitors and ChannelManager to chain tip
let mut chain_listener_channel_monitors = Vec::new();
let mut cache = UnboundedCache::new();
let mut chain_tip: Option<poll::ValidatedBlockHeader> = None;
}
chain_tip = Some(
init::synchronize_listeners(
- &mut bitcoind_client.deref(),
+ bitcoind_client.as_ref(),
args.network,
&mut cache,
chain_listeners,
);
}
- // Step 10: Give ChannelMonitors to ChainMonitor
+ // Step 11: Give ChannelMonitors to ChainMonitor
for item in chain_listener_channel_monitors.drain(..) {
let channel_monitor = item.1 .0;
let funding_outpoint = item.2;
- chain_monitor.watch_channel(funding_outpoint, channel_monitor).unwrap();
+ assert_eq!(
+ chain_monitor.watch_channel(funding_outpoint, channel_monitor),
+ ChannelMonitorUpdateStatus::Completed
+ );
}
- // Step 11: Optional: Initialize the P2PGossipSync
+ // Step 12: Optional: Initialize the P2PGossipSync
let genesis = genesis_block(args.network).header.block_hash();
let network_graph_path = format!("{}/network_graph", ldk_data_dir.clone());
let network_graph =
logger.clone(),
));
- // Step 12: Initialize the PeerManager
+ // Step 13: Initialize the PeerManager
let channel_manager: Arc<ChannelManager> = Arc::new(channel_manager);
- let onion_messenger: Arc<OnionMessenger> =
- Arc::new(OnionMessenger::new(keys_manager.clone(), logger.clone()));
+ let onion_messenger: Arc<OnionMessenger> = Arc::new(OnionMessenger::new(
+ Arc::clone(&keys_manager),
+ Arc::clone(&logger),
+ IgnoringMessageHandler {},
+ ));
let mut ephemeral_bytes = [0; 32];
let current_time = SystemTime::now().duration_since(SystemTime::UNIX_EPOCH).unwrap().as_secs();
rand::thread_rng().fill_bytes(&mut ephemeral_bytes);
let peer_manager: Arc<PeerManager> = Arc::new(PeerManager::new(
lightning_msg_handler,
keys_manager.get_node_secret(Recipient::Node).unwrap(),
- current_time,
+ current_time.try_into().unwrap(),
&ephemeral_bytes,
logger.clone(),
IgnoringMessageHandler {},
));
// ## Running LDK
- // Step 13: Initialize networking
+ // Step 14: Initialize networking
let peer_manager_connection_handler = peer_manager.clone();
let listening_port = args.ldk_peer_listening_port;
}
});
- // Step 14: Connect and Disconnect Blocks
+ // Step 15: Connect and Disconnect Blocks
if chain_tip.is_none() {
- chain_tip =
- Some(init::validate_best_block_header(&mut bitcoind_client.deref()).await.unwrap());
+ chain_tip = Some(polled_chain_tip);
}
let channel_manager_listener = channel_manager.clone();
let chain_monitor_listener = chain_monitor.clone();
let bitcoind_block_source = bitcoind_client.clone();
let network = args.network;
tokio::spawn(async move {
- let mut derefed = bitcoind_block_source.deref();
- let chain_poller = poll::ChainPoller::new(&mut derefed, network);
+ let chain_poller = poll::ChainPoller::new(bitcoind_block_source.as_ref(), network);
let chain_listener = (chain_monitor_listener, channel_manager_listener);
let mut spv_client =
SpvClient::new(chain_tip.unwrap(), chain_poller, &mut cache, &chain_listener);
}
});
- // Step 15: Handle LDK Events
+ // Step 16: Handle LDK Events
let channel_manager_event_listener = channel_manager.clone();
let keys_manager_listener = keys_manager.clone();
// TODO: persist payment info to disk
));
};
- // Step 16: Initialize routing ProbabilisticScorer
+ // Step 17: Initialize routing ProbabilisticScorer
let scorer_path = format!("{}/scorer", ldk_data_dir.clone());
let scorer = Arc::new(Mutex::new(disk::read_scorer(
Path::new(&scorer_path),
Arc::clone(&logger),
)));
- // Step 17: Create InvoicePayer
+ // Step 18: Create InvoicePayer
let router = DefaultRouter::new(
network_graph.clone(),
logger.clone(),
keys_manager.get_secure_random_bytes(),
+ scorer.clone(),
);
let invoice_payer = Arc::new(InvoicePayer::new(
channel_manager.clone(),
router,
- scorer.clone(),
logger.clone(),
event_handler,
payment::Retry::Timeout(Duration::from_secs(10)),
));
- // Step 18: Persist ChannelManager and NetworkGraph
+ // Step 19: Persist ChannelManager and NetworkGraph
let persister = Arc::new(FilesystemPersister::new(ldk_data_dir.clone()));
- // Step 19: Background Processing
+ // Step 20: Background Processing
let background_processor = BackgroundProcessor::start(
persister,
invoice_payer.clone(),
outbound_payments,
ldk_data_dir.clone(),
network,
+ Arc::clone(&logger),
)
.await;
#[tokio::main]
pub async fn main() {
+ #[cfg(not(target_os = "windows"))]
+ {
+ // Catch Ctrl-C with a dummy signal handler.
+ unsafe {
+ let mut new_action: libc::sigaction = core::mem::zeroed();
+ let mut old_action: libc::sigaction = core::mem::zeroed();
+
+ extern "C" fn dummy_handler(
+ _: libc::c_int, _: *const libc::siginfo_t, _: *const libc::c_void,
+ ) {
+ }
+
+ new_action.sa_sigaction = dummy_handler as libc::sighandler_t;
+ new_action.sa_flags = libc::SA_SIGINFO;
+
+ libc::sigaction(
+ libc::SIGINT,
+ &new_action as *const libc::sigaction,
+ &mut old_action as *mut libc::sigaction,
+ );
+ }
+ }
+
start_ldk().await;
}
projects / ldk-sample / blobdiff