chan_context.holder_selected_channel_reserve_satoshis = 0;
chan_context.holder_max_htlc_value_in_flight_msat = 100_000_000;
},
- ChannelPhase::Funded(_) => assert!(false),
+ _ => assert!(false),
}
}
send_payment(&nodes[1], &vec!(&nodes[0])[..], 800000);
send_payment(&nodes[0], &vec!(&nodes[1])[..], 800000);
close_channel(&nodes[0], &nodes[1], &chan.2, chan.3, true);
- check_closed_event!(nodes[0], 1, ClosureReason::CooperativeClosure, [nodes[1].node.get_our_node_id()], 100000);
- check_closed_event!(nodes[1], 1, ClosureReason::CooperativeClosure, [nodes[0].node.get_our_node_id()], 100000);
+ check_closed_event!(nodes[0], 1, ClosureReason::CounterpartyInitiatedCooperativeClosure, [nodes[1].node.get_our_node_id()], 100000);
+ check_closed_event!(nodes[1], 1, ClosureReason::LocallyInitiatedCooperativeClosure, [nodes[0].node.get_our_node_id()], 100000);
}
#[test]
assert_eq!(get_feerate!(nodes[0], nodes[1], channel_id), feerate + 30);
assert_eq!(get_feerate!(nodes[1], nodes[0], channel_id), feerate + 30);
close_channel(&nodes[0], &nodes[1], &chan.2, chan.3, true);
- check_closed_event!(nodes[0], 1, ClosureReason::CooperativeClosure, [nodes[1].node.get_our_node_id()], 100000);
- check_closed_event!(nodes[1], 1, ClosureReason::CooperativeClosure, [nodes[0].node.get_our_node_id()], 100000);
+ check_closed_event!(nodes[0], 1, ClosureReason::CounterpartyInitiatedCooperativeClosure, [nodes[1].node.get_our_node_id()], 100000);
+ check_closed_event!(nodes[1], 1, ClosureReason::LocallyInitiatedCooperativeClosure, [nodes[0].node.get_our_node_id()], 100000);
}
#[test]
// Close down the channels...
close_channel(&nodes[0], &nodes[1], &chan_1.2, chan_1.3, true);
- check_closed_event!(nodes[0], 1, ClosureReason::CooperativeClosure, [nodes[1].node.get_our_node_id()], 100000);
- check_closed_event!(nodes[1], 1, ClosureReason::CooperativeClosure, [nodes[0].node.get_our_node_id()], 100000);
+ check_closed_event!(nodes[0], 1, ClosureReason::CounterpartyInitiatedCooperativeClosure, [nodes[1].node.get_our_node_id()], 100000);
+ check_closed_event!(nodes[1], 1, ClosureReason::LocallyInitiatedCooperativeClosure, [nodes[0].node.get_our_node_id()], 100000);
close_channel(&nodes[1], &nodes[2], &chan_2.2, chan_2.3, false);
- check_closed_event!(nodes[1], 1, ClosureReason::CooperativeClosure, [nodes[2].node.get_our_node_id()], 100000);
- check_closed_event!(nodes[2], 1, ClosureReason::CooperativeClosure, [nodes[1].node.get_our_node_id()], 100000);
+ check_closed_event!(nodes[1], 1, ClosureReason::LocallyInitiatedCooperativeClosure, [nodes[2].node.get_our_node_id()], 100000);
+ check_closed_event!(nodes[2], 1, ClosureReason::CounterpartyInitiatedCooperativeClosure, [nodes[1].node.get_our_node_id()], 100000);
close_channel(&nodes[2], &nodes[3], &chan_3.2, chan_3.3, true);
- check_closed_event!(nodes[2], 1, ClosureReason::CooperativeClosure, [nodes[3].node.get_our_node_id()], 100000);
- check_closed_event!(nodes[3], 1, ClosureReason::CooperativeClosure, [nodes[2].node.get_our_node_id()], 100000);
+ check_closed_event!(nodes[2], 1, ClosureReason::CounterpartyInitiatedCooperativeClosure, [nodes[3].node.get_our_node_id()], 100000);
+ check_closed_event!(nodes[3], 1, ClosureReason::LocallyInitiatedCooperativeClosure, [nodes[2].node.get_our_node_id()], 100000);
close_channel(&nodes[1], &nodes[3], &chan_4.2, chan_4.3, false);
- check_closed_event!(nodes[1], 1, ClosureReason::CooperativeClosure, [nodes[3].node.get_our_node_id()], 100000);
- check_closed_event!(nodes[3], 1, ClosureReason::CooperativeClosure, [nodes[1].node.get_our_node_id()], 100000);
+ check_closed_event!(nodes[1], 1, ClosureReason::LocallyInitiatedCooperativeClosure, [nodes[3].node.get_our_node_id()], 100000);
+ check_closed_event!(nodes[3], 1, ClosureReason::CounterpartyInitiatedCooperativeClosure, [nodes[1].node.get_our_node_id()], 100000);
}
#[test]
let secp_ctx = Secp256k1::new();
let session_priv = SecretKey::from_slice(&[42; 32]).expect("RNG is bad!");
- let cur_height = nodes[1].node.best_block.read().unwrap().height() + 1;
+ let cur_height = nodes[1].node.best_block.read().unwrap().height + 1;
let onion_keys = onion_utils::construct_onion_keys(&secp_ctx, &route.paths[0], &session_priv).unwrap();
let (onion_payloads, htlc_msat, htlc_cltv) = onion_utils::build_onion_payloads(&route.paths[0],
// Need to manually create the update_add_htlc message to go around the channel reserve check in send_htlc()
let secp_ctx = Secp256k1::new();
let session_priv = SecretKey::from_slice(&[42; 32]).unwrap();
- let cur_height = nodes[1].node.best_block.read().unwrap().height() + 1;
+ let cur_height = nodes[1].node.best_block.read().unwrap().height + 1;
let onion_keys = onion_utils::construct_onion_keys(&secp_ctx, &route.paths[0], &session_priv).unwrap();
let (onion_payloads, htlc_msat, htlc_cltv) = onion_utils::build_onion_payloads(&route.paths[0],
700_000, RecipientOnionFields::secret_only(payment_secret), cur_height, &None).unwrap();
// Need to manually create the update_add_htlc message to go around the channel reserve check in send_htlc()
let secp_ctx = Secp256k1::new();
let session_priv = SecretKey::from_slice(&[42; 32]).unwrap();
- let cur_height = nodes[0].node.best_block.read().unwrap().height() + 1;
+ let cur_height = nodes[0].node.best_block.read().unwrap().height + 1;
let onion_keys = onion_utils::construct_onion_keys(&secp_ctx, &route_2.paths[0], &session_priv).unwrap();
let (onion_payloads, htlc_msat, htlc_cltv) = onion_utils::build_onion_payloads(
&route_2.paths[0], recv_value_2, RecipientOnionFields::spontaneous_empty(), cur_height, &None).unwrap();
// block connection just like the !deliver_bs_raa case
}
- let mut failed_htlcs = HashSet::new();
+ let mut failed_htlcs = new_hash_set();
assert!(nodes[1].node.get_and_clear_pending_events().is_empty());
mine_transaction(&nodes[1], &revoked_local_txn[0]);
let secp_ctx = Secp256k1::new();
let session_priv = SecretKey::from_slice(&[42; 32]).unwrap();
- let current_height = nodes[1].node.best_block.read().unwrap().height() + 1;
+ let current_height = nodes[1].node.best_block.read().unwrap().height + 1;
let (onion_payloads, _amount_msat, cltv_expiry) = onion_utils::build_onion_payloads(
&route.paths[0], 50_000, RecipientOnionFields::secret_only(payment_secret), current_height, &None).unwrap();
let onion_keys = onion_utils::construct_onion_keys(&secp_ctx, &route.paths[0], &session_priv).unwrap();
#[test]
fn test_peer_disconnected_before_funding_broadcasted() {
// Test that channels are closed with `ClosureReason::DisconnectedPeer` if the peer disconnects
- // before the funding transaction has been broadcasted.
+ // before the funding transaction has been broadcasted, and doesn't reconnect back within time.
let chanmon_cfgs = create_chanmon_cfgs(2);
let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
assert_eq!(nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap().len(), 0);
}
- // Ensure that the channel is closed with `ClosureReason::DisconnectedPeer` when the peers are
- // disconnected before the funding transaction was broadcasted.
+ // The peers disconnect before the funding is broadcasted.
nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id());
nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id());
- check_closed_event!(&nodes[0], 2, ClosureReason::DisconnectedPeer, true
+ // The time for peers to reconnect expires.
+ for _ in 0..UNFUNDED_CHANNEL_AGE_LIMIT_TICKS {
+ nodes[0].node.timer_tick_occurred();
+ }
+
+ // Ensure that the channel is closed with `ClosureReason::HolderForceClosed`
+ // when the peers are disconnected and do not reconnect before the funding
+ // transaction is broadcasted.
+ check_closed_event!(&nodes[0], 2, ClosureReason::HolderForceClosed, true
, [nodes[1].node.get_our_node_id()], 1000000);
check_closed_event!(&nodes[1], 1, ClosureReason::DisconnectedPeer, false
, [nodes[0].node.get_our_node_id()], 1000000);
let as_events = nodes[0].node.get_and_clear_pending_events();
assert_eq!(as_events.len(), if announce_latest { 10 } else { 6 });
- let mut as_failds = HashSet::new();
+ let mut as_faileds = new_hash_set();
let mut as_updates = 0;
for event in as_events.iter() {
if let &Event::PaymentPathFailed { ref payment_hash, ref payment_failed_permanently, ref failure, .. } = event {
- assert!(as_failds.insert(*payment_hash));
+ assert!(as_faileds.insert(*payment_hash));
if *payment_hash != payment_hash_2 {
assert_eq!(*payment_failed_permanently, deliver_last_raa);
} else {
} else if let &Event::PaymentFailed { .. } = event {
} else { panic!("Unexpected event"); }
}
- assert!(as_failds.contains(&payment_hash_1));
- assert!(as_failds.contains(&payment_hash_2));
+ assert!(as_faileds.contains(&payment_hash_1));
+ assert!(as_faileds.contains(&payment_hash_2));
if announce_latest {
- assert!(as_failds.contains(&payment_hash_3));
- assert!(as_failds.contains(&payment_hash_5));
+ assert!(as_faileds.contains(&payment_hash_3));
+ assert!(as_faileds.contains(&payment_hash_5));
}
- assert!(as_failds.contains(&payment_hash_6));
+ assert!(as_faileds.contains(&payment_hash_6));
let bs_events = nodes[1].node.get_and_clear_pending_events();
assert_eq!(bs_events.len(), if announce_latest { 8 } else { 6 });
- let mut bs_failds = HashSet::new();
+ let mut bs_faileds = new_hash_set();
let mut bs_updates = 0;
for event in bs_events.iter() {
if let &Event::PaymentPathFailed { ref payment_hash, ref payment_failed_permanently, ref failure, .. } = event {
- assert!(bs_failds.insert(*payment_hash));
+ assert!(bs_faileds.insert(*payment_hash));
if *payment_hash != payment_hash_1 && *payment_hash != payment_hash_5 {
assert_eq!(*payment_failed_permanently, deliver_last_raa);
} else {
} else if let &Event::PaymentFailed { .. } = event {
} else { panic!("Unexpected event"); }
}
- assert!(bs_failds.contains(&payment_hash_1));
- assert!(bs_failds.contains(&payment_hash_2));
+ assert!(bs_faileds.contains(&payment_hash_1));
+ assert!(bs_faileds.contains(&payment_hash_2));
if announce_latest {
- assert!(bs_failds.contains(&payment_hash_4));
+ assert!(bs_faileds.contains(&payment_hash_4));
}
- assert!(bs_failds.contains(&payment_hash_5));
+ assert!(bs_faileds.contains(&payment_hash_5));
// For each HTLC which was not failed-back by normal process (ie deliver_last_raa), we should
// get a NetworkUpdate. A should have gotten 4 HTLCs which were failed-back due to
let network_graph = Arc::new(NetworkGraph::new(Network::Testnet, &chanmon_cfgs[0].logger));
let scorer = RwLock::new(test_utils::TestScorer::new());
let router = test_utils::TestRouter::new(network_graph.clone(), &chanmon_cfgs[0].logger, &scorer);
- let message_router = test_utils::TestMessageRouter::new(network_graph.clone());
+ let message_router = test_utils::TestMessageRouter::new(network_graph.clone(), &keys_manager);
let node = NodeCfg { chain_source: &chanmon_cfgs[0].chain_source, logger: &chanmon_cfgs[0].logger, tx_broadcaster: &chanmon_cfgs[0].tx_broadcaster, fee_estimator: &chanmon_cfgs[0].fee_estimator, router, message_router, chain_monitor, keys_manager: &keys_manager, network_graph, node_seed: seed, override_init_features: alloc::rc::Rc::new(core::cell::RefCell::new(None)) };
let mut node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
node_cfgs.remove(0);
let closing_tx = close_channel(&nodes[0], &nodes[1], &chan.2, chan.3, true).2;
mine_transaction(&nodes[0], &closing_tx);
- check_closed_event!(nodes[0], 1, ClosureReason::CooperativeClosure, [nodes[1].node.get_our_node_id()], 100000);
+ check_closed_event!(nodes[0], 1, ClosureReason::CounterpartyInitiatedCooperativeClosure, [nodes[1].node.get_our_node_id()], 100000);
connect_blocks(&nodes[0], ANTI_REORG_DELAY - 1);
let spend_txn = check_spendable_outputs!(nodes[0], node_cfgs[0].keys_manager);
check_spends!(spend_txn[0], closing_tx);
mine_transaction(&nodes[1], &closing_tx);
- check_closed_event!(nodes[1], 1, ClosureReason::CooperativeClosure, [nodes[0].node.get_our_node_id()], 100000);
+ check_closed_event!(nodes[1], 1, ClosureReason::LocallyInitiatedCooperativeClosure, [nodes[0].node.get_our_node_id()], 100000);
connect_blocks(&nodes[1], ANTI_REORG_DELAY - 1);
let spend_txn = check_spendable_outputs!(nodes[1], node_cfgs[1].keys_manager);
get_route_and_payment_hash!(nodes[0], nodes[1], 1000);
route.paths[0].hops[0].fee_msat = send_amt;
let session_priv = SecretKey::from_slice(&[42; 32]).unwrap();
- let cur_height = nodes[0].node.best_block.read().unwrap().height() + 1;
+ let cur_height = nodes[0].node.best_block.read().unwrap().height + 1;
let onion_keys = onion_utils::construct_onion_keys(&Secp256k1::signing_only(), &route.paths[0], &session_priv).unwrap();
let (onion_payloads, _htlc_msat, htlc_cltv) = onion_utils::build_onion_payloads(
&route.paths[0], send_amt, RecipientOnionFields::secret_only(our_payment_secret), cur_height, &None).unwrap();
}
let msg_events = nodes[0].node.get_and_clear_pending_msg_events();
assert_eq!(msg_events.len(), 3);
- let mut chans_disabled = HashMap::new();
+ let mut chans_disabled = new_hash_map();
for e in msg_events {
match e {
MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
let accept_channel_message = get_event_msg!(nodes[1], MessageSendEvent::SendAcceptChannel, nodes[0].node.get_our_node_id());
nodes[0].node.handle_accept_channel(&nodes[1].node.get_our_node_id(), &accept_channel_message);
- let best_height = nodes[0].node.best_block.read().unwrap().height();
+ let best_height = nodes[0].node.best_block.read().unwrap().height;
let chan_id = *nodes[0].network_chan_count.borrow();
let events = nodes[0].node.get_and_clear_pending_events();
let accept_channel_message = get_event_msg!(nodes[1], MessageSendEvent::SendAcceptChannel, nodes[0].node.get_our_node_id());
nodes[0].node.handle_accept_channel(&nodes[1].node.get_our_node_id(), &accept_channel_message);
- let best_height = nodes[0].node.best_block.read().unwrap().height();
+ let best_height = nodes[0].node.best_block.read().unwrap().height;
let chan_id = *nodes[0].network_chan_count.borrow();
let events = nodes[0].node.get_and_clear_pending_events();
check_closed_event(&nodes[1], 1, ClosureReason::HolderForceClosed, false, &[nodes[0].node.get_our_node_id()], 100000);
}
+#[test]
+fn test_channel_close_when_not_timely_accepted() {
+ // Create network of two nodes
+ let chanmon_cfgs = create_chanmon_cfgs(2);
+ let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
+ let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
+ let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
+
+ // Simulate peer-disconnects mid-handshake
+ // The channel is initiated from the node 0 side,
+ // but the nodes disconnect before node 1 could send accept channel
+ let create_chan_id = nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100000, 10001, 42, None, None).unwrap();
+ let open_channel_msg = get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id());
+ assert_eq!(open_channel_msg.common_fields.temporary_channel_id, create_chan_id);
+
+ nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id());
+ nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id());
+
+ // Make sure that we have not removed the OutboundV1Channel from node[0] immediately.
+ assert_eq!(nodes[0].node.list_channels().len(), 1);
+
+ // Since channel was inbound from node[1] perspective, it should have been dropped immediately.
+ assert_eq!(nodes[1].node.list_channels().len(), 0);
+
+ // In the meantime, some time passes.
+ for _ in 0..UNFUNDED_CHANNEL_AGE_LIMIT_TICKS {
+ nodes[0].node.timer_tick_occurred();
+ }
+
+ // Since we disconnected from peer and did not connect back within time,
+ // we should have forced-closed the channel by now.
+ check_closed_event!(nodes[0], 1, ClosureReason::HolderForceClosed, [nodes[1].node.get_our_node_id()], 100000);
+ assert_eq!(nodes[0].node.list_channels().len(), 0);
+
+ {
+ // Since accept channel message was never received
+ // The channel should be forced close by now from node 0 side
+ // and the peer removed from per_peer_state
+ let node_0_per_peer_state = nodes[0].node.per_peer_state.read().unwrap();
+ assert_eq!(node_0_per_peer_state.len(), 0);
+ }
+}
+
+#[test]
+fn test_rebroadcast_open_channel_when_reconnect_mid_handshake() {
+ // Create network of two nodes
+ let chanmon_cfgs = create_chanmon_cfgs(2);
+ let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
+ let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
+ let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
+
+ // Simulate peer-disconnects mid-handshake
+ // The channel is initiated from the node 0 side,
+ // but the nodes disconnect before node 1 could send accept channel
+ let create_chan_id = nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100000, 10001, 42, None, None).unwrap();
+ let open_channel_msg = get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id());
+ assert_eq!(open_channel_msg.common_fields.temporary_channel_id, create_chan_id);
+
+ nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id());
+ nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id());
+
+ // Make sure that we have not removed the OutboundV1Channel from node[0] immediately.
+ assert_eq!(nodes[0].node.list_channels().len(), 1);
+
+ // Since channel was inbound from node[1] perspective, it should have been immediately dropped.
+ assert_eq!(nodes[1].node.list_channels().len(), 0);
+
+ // The peers now reconnect
+ nodes[0].node.peer_connected(&nodes[1].node.get_our_node_id(), &msgs::Init {
+ features: nodes[1].node.init_features(), networks: None, remote_network_address: None
+ }, true).unwrap();
+ nodes[1].node.peer_connected(&nodes[0].node.get_our_node_id(), &msgs::Init {
+ features: nodes[0].node.init_features(), networks: None, remote_network_address: None
+ }, false).unwrap();
+
+ // Make sure the SendOpenChannel message is added to node_0 pending message events
+ let msg_events = nodes[0].node.get_and_clear_pending_msg_events();
+ assert_eq!(msg_events.len(), 1);
+ match &msg_events[0] {
+ MessageSendEvent::SendOpenChannel { msg, .. } => assert_eq!(msg, &open_channel_msg),
+ _ => panic!("Unexpected message."),
+ }
+}
+
fn do_test_multi_post_event_actions(do_reload: bool) {
// Tests handling multiple post-Event actions at once.
// There is specific code in ChannelManager to handle channels where multiple post-Event
}
#[test]
-fn test_disconnect_in_funding_batch() {
+fn test_close_in_funding_batch() {
+ // This test ensures that if one of the channels
+ // in the batch closes, the complete batch will close.
let chanmon_cfgs = create_chanmon_cfgs(3);
let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &[None, None, None]);
// The transaction should not have been broadcast before all channels are ready.
assert_eq!(nodes[0].tx_broadcaster.txn_broadcast().len(), 0);
- // The remaining peer in the batch disconnects.
- nodes[0].node.peer_disconnected(&nodes[2].node.get_our_node_id());
-
- // The channels in the batch will close immediately.
+ // Force-close the channel for which we've completed the initial monitor.
let funding_txo_1 = OutPoint { txid: tx.txid(), index: 0 };
let funding_txo_2 = OutPoint { txid: tx.txid(), index: 1 };
let channel_id_1 = ChannelId::v1_from_funding_outpoint(funding_txo_1);
let channel_id_2 = ChannelId::v1_from_funding_outpoint(funding_txo_2);
+
+ nodes[0].node.force_close_broadcasting_latest_txn(&channel_id_1, &nodes[1].node.get_our_node_id()).unwrap();
+
+ // The monitor should become closed.
+ check_added_monitors(&nodes[0], 1);
+ {
+ let mut monitor_updates = nodes[0].chain_monitor.monitor_updates.lock().unwrap();
+ let monitor_updates_1 = monitor_updates.get(&channel_id_1).unwrap();
+ assert_eq!(monitor_updates_1.len(), 1);
+ assert_eq!(monitor_updates_1[0].update_id, CLOSED_CHANNEL_UPDATE_ID);
+ }
+
+ let msg_events = nodes[0].node.get_and_clear_pending_msg_events();
+ match msg_events[0] {
+ MessageSendEvent::HandleError { .. } => (),
+ _ => panic!("Unexpected message."),
+ }
+
+ // We broadcast the commitment transaction as part of the force-close.
+ {
+ let broadcasted_txs = nodes[0].tx_broadcaster.txn_broadcast();
+ assert_eq!(broadcasted_txs.len(), 1);
+ assert!(broadcasted_txs[0].txid() != tx.txid());
+ assert_eq!(broadcasted_txs[0].input.len(), 1);
+ assert_eq!(broadcasted_txs[0].input[0].previous_output.txid, tx.txid());
+ }
+
+ // All channels in the batch should close immediately.
check_closed_events(&nodes[0], &[
ExpectedCloseEvent {
channel_id: Some(channel_id_1),
},
]);
- // The monitor should become closed.
- check_added_monitors(&nodes[0], 1);
- {
- let mut monitor_updates = nodes[0].chain_monitor.monitor_updates.lock().unwrap();
- let monitor_updates_1 = monitor_updates.get(&channel_id_1).unwrap();
- assert_eq!(monitor_updates_1.len(), 1);
- assert_eq!(monitor_updates_1[0].update_id, CLOSED_CHANNEL_UPDATE_ID);
- }
-
- // The funding transaction should not have been broadcast, and therefore, we don't need
- // to broadcast a force-close transaction for the closed monitor.
- assert_eq!(nodes[0].tx_broadcaster.txn_broadcast().len(), 0);
-
// Ensure the channels don't exist anymore.
assert!(nodes[0].node.list_channels().is_empty());
}
projects / rust-lightning / blobdiff