use bitcoin::secp256k1;
use chain;
-use chain::{Confirm, Watch, BestBlock};
+use chain::{Confirm, ChannelMonitorUpdateErr, Watch, BestBlock};
use chain::chaininterface::{BroadcasterInterface, ConfirmationTarget, FeeEstimator};
-use chain::channelmonitor::{ChannelMonitor, ChannelMonitorUpdate, ChannelMonitorUpdateStep, ChannelMonitorUpdateErr, HTLC_FAIL_BACK_BUFFER, CLTV_CLAIM_BUFFER, LATENCY_GRACE_PERIOD_BLOCKS, ANTI_REORG_DELAY, MonitorEvent, CLOSED_CHANNEL_UPDATE_ID};
+use chain::channelmonitor::{ChannelMonitor, ChannelMonitorUpdate, ChannelMonitorUpdateStep, HTLC_FAIL_BACK_BUFFER, CLTV_CLAIM_BUFFER, LATENCY_GRACE_PERIOD_BLOCKS, ANTI_REORG_DELAY, MonitorEvent, CLOSED_CHANNEL_UPDATE_ID};
use chain::transaction::{OutPoint, TransactionData};
// Since this struct is returned in `list_channels` methods, expose it here in case users want to
// construct one themselves.
/// Stores the session_priv for each part of a payment that is still pending. For versions 0.0.102
/// and later, also stores information for retrying the payment.
-enum PendingOutboundPayment {
+pub(crate) enum PendingOutboundPayment {
Legacy {
session_privs: HashSet<[u8; 32]>,
},
pending_amt_msat: u64,
/// The total payment amount across all paths, used to verify that a retry is not overpaying.
total_msat: u64,
+ /// Our best known block height at the time this payment was initiated.
+ starting_block_height: u32,
},
}
self.list_channels_with_filter(|&(_, ref channel)| channel.is_live())
}
+ /// Helper function that issues the channel close events
+ fn issue_channel_close_events(&self, channel: &Channel<Signer>, closure_reason: ClosureReason) {
+ let mut pending_events_lock = self.pending_events.lock().unwrap();
+ match channel.unbroadcasted_funding() {
+ Some(transaction) => {
+ pending_events_lock.push(events::Event::DiscardFunding { channel_id: channel.channel_id(), transaction })
+ },
+ None => {},
+ }
+ pending_events_lock.push(events::Event::ChannelClosed { channel_id: channel.channel_id(), reason: closure_reason });
+ }
+
fn close_channel_internal(&self, channel_id: &[u8; 32], target_feerate_sats_per_1000_weight: Option<u32>) -> Result<(), APIError> {
let _persistence_guard = PersistenceNotifierGuard::notify_on_drop(&self.total_consistency_lock, &self.persistence_notifier);
msg: channel_update
});
}
- if let Ok(mut pending_events_lock) = self.pending_events.lock() {
- pending_events_lock.push(events::Event::ChannelClosed {
- channel_id: *channel_id,
- reason: ClosureReason::HolderForceClosed
- });
- }
+ self.issue_channel_close_events(&channel, ClosureReason::HolderForceClosed);
}
break Ok(());
},
if let Some(short_id) = chan.get().get_short_channel_id() {
channel_state.short_to_id.remove(&short_id);
}
- let mut pending_events_lock = self.pending_events.lock().unwrap();
if peer_node_id.is_some() {
if let Some(peer_msg) = peer_msg {
- pending_events_lock.push(events::Event::ChannelClosed { channel_id: *channel_id, reason: ClosureReason::CounterpartyForceClosed { peer_msg: peer_msg.to_string() } });
+ self.issue_channel_close_events(chan.get(),ClosureReason::CounterpartyForceClosed { peer_msg: peer_msg.to_string() });
}
} else {
- pending_events_lock.push(events::Event::ChannelClosed { channel_id: *channel_id, reason: ClosureReason::HolderForceClosed });
+ self.issue_channel_close_events(chan.get(),ClosureReason::HolderForceClosed);
}
chan.remove_entry().1
} else {
let onion_packet = onion_utils::construct_onion_packet(onion_payloads, onion_keys, prng_seed, payment_hash);
let _persistence_guard = PersistenceNotifierGuard::notify_on_drop(&self.total_consistency_lock, &self.persistence_notifier);
- let mut pending_outbounds = self.pending_outbound_payments.lock().unwrap();
- let payment = pending_outbounds.entry(payment_id).or_insert_with(|| PendingOutboundPayment::Retryable {
- session_privs: HashSet::new(),
- pending_amt_msat: 0,
- payment_hash: *payment_hash,
- payment_secret: *payment_secret,
- total_msat: total_value,
- });
- assert!(payment.insert(session_priv_bytes, path.last().unwrap().fee_msat));
let err: Result<(), _> = loop {
let mut channel_lock = self.channel_state.lock().unwrap();
if !chan.get().is_live() {
return Err(APIError::ChannelUnavailable{err: "Peer for first hop currently disconnected/pending monitor update!".to_owned()});
}
- break_chan_entry!(self, chan.get_mut().send_htlc_and_commit(htlc_msat, payment_hash.clone(), htlc_cltv, HTLCSource::OutboundRoute {
- path: path.clone(),
- session_priv: session_priv.clone(),
- first_hop_htlc_msat: htlc_msat,
- payment_id,
- }, onion_packet, &self.logger), channel_state, chan)
+ let send_res = break_chan_entry!(self, chan.get_mut().send_htlc_and_commit(
+ htlc_msat, payment_hash.clone(), htlc_cltv, HTLCSource::OutboundRoute {
+ path: path.clone(),
+ session_priv: session_priv.clone(),
+ first_hop_htlc_msat: htlc_msat,
+ payment_id,
+ }, onion_packet, &self.logger),
+ channel_state, chan);
+
+ let mut pending_outbounds = self.pending_outbound_payments.lock().unwrap();
+ let payment = pending_outbounds.entry(payment_id).or_insert_with(|| PendingOutboundPayment::Retryable {
+ session_privs: HashSet::new(),
+ pending_amt_msat: 0,
+ payment_hash: *payment_hash,
+ payment_secret: *payment_secret,
+ starting_block_height: self.best_block.read().unwrap().height(),
+ total_msat: total_value,
+ });
+ assert!(payment.insert(session_priv_bytes, path.last().unwrap().fee_msat));
+
+ send_res
} {
Some((update_add, commitment_signed, monitor_update)) => {
if let Err(e) = self.chain_monitor.update_channel(chan.get().get_funding_txo().unwrap(), monitor_update) {
}
}
+ /// Retries a payment along the given [`Route`].
+ ///
+ /// Errors returned are a superset of those returned from [`send_payment`], so see
+ /// [`send_payment`] documentation for more details on errors. This method will also error if the
+ /// retry amount puts the payment more than 10% over the payment's total amount, or if the payment
+ /// for the given `payment_id` cannot be found (likely due to timeout or success).
+ ///
+ /// [`send_payment`]: [`ChannelManager::send_payment`]
+ pub fn retry_payment(&self, route: &Route, payment_id: PaymentId) -> Result<(), PaymentSendFailure> {
+ const RETRY_OVERFLOW_PERCENTAGE: u64 = 10;
+ for path in route.paths.iter() {
+ if path.len() == 0 {
+ return Err(PaymentSendFailure::ParameterError(APIError::APIMisuseError {
+ err: "length-0 path in route".to_string()
+ }))
+ }
+ }
+
+ let (total_msat, payment_hash, payment_secret) = {
+ let outbounds = self.pending_outbound_payments.lock().unwrap();
+ if let Some(payment) = outbounds.get(&payment_id) {
+ match payment {
+ PendingOutboundPayment::Retryable {
+ total_msat, payment_hash, payment_secret, pending_amt_msat, ..
+ } => {
+ let retry_amt_msat: u64 = route.paths.iter().map(|path| path.last().unwrap().fee_msat).sum();
+ if retry_amt_msat + *pending_amt_msat > *total_msat * (100 + RETRY_OVERFLOW_PERCENTAGE) / 100 {
+ return Err(PaymentSendFailure::ParameterError(APIError::APIMisuseError {
+ err: format!("retry_amt_msat of {} will put pending_amt_msat (currently: {}) more than 10% over total_payment_amt_msat of {}", retry_amt_msat, pending_amt_msat, total_msat).to_string()
+ }))
+ }
+ (*total_msat, *payment_hash, *payment_secret)
+ },
+ PendingOutboundPayment::Legacy { .. } => {
+ return Err(PaymentSendFailure::ParameterError(APIError::APIMisuseError {
+ err: "Unable to retry payments that were initially sent on LDK versions prior to 0.0.102".to_string()
+ }))
+ }
+ }
+ } else {
+ return Err(PaymentSendFailure::ParameterError(APIError::APIMisuseError {
+ err: format!("Payment with ID {} not found", log_bytes!(payment_id.0)),
+ }))
+ }
+ };
+ return self.send_payment_internal(route, payment_hash, &payment_secret, None, Some(payment_id), Some(total_msat)).map(|_| ())
+ }
+
/// Send a spontaneous payment, which is a payment that does not require the recipient to have
/// generated an invoice. Optionally, you may specify the preimage. If you do choose to specify
/// the preimage, it must be a cryptographically secure random value that no intermediate node
network_update: None,
all_paths_failed: payment.get().remaining_parts() == 0,
path: path.clone(),
+ short_channel_id: None,
#[cfg(test)]
error_code: None,
#[cfg(test)]
error_data: None,
}
);
- if payment.get().remaining_parts() == 0 {
- payment.remove();
- }
}
} else {
log_trace!(self.logger, "Received duplicative fail for HTLC with payment_hash {}", log_bytes!(payment_hash.0));
}
if sessions.get().remaining_parts() == 0 {
all_paths_failed = true;
- sessions.remove();
}
} else {
log_trace!(self.logger, "Received duplicative fail for HTLC with payment_hash {}", log_bytes!(payment_hash.0));
match &onion_error {
&HTLCFailReason::LightningError { ref err } => {
#[cfg(test)]
- let (network_update, payment_retryable, onion_error_code, onion_error_data) = onion_utils::process_onion_failure(&self.secp_ctx, &self.logger, &source, err.data.clone());
+ let (network_update, short_channel_id, payment_retryable, onion_error_code, onion_error_data) = onion_utils::process_onion_failure(&self.secp_ctx, &self.logger, &source, err.data.clone());
#[cfg(not(test))]
- let (network_update, payment_retryable, _, _) = onion_utils::process_onion_failure(&self.secp_ctx, &self.logger, &source, err.data.clone());
+ let (network_update, short_channel_id, payment_retryable, _, _) = onion_utils::process_onion_failure(&self.secp_ctx, &self.logger, &source, err.data.clone());
// TODO: If we decided to blame ourselves (or one of our channels) in
// process_onion_failure we should close that channel as it implies our
// next-hop is needlessly blaming us!
network_update,
all_paths_failed,
path: path.clone(),
+ short_channel_id,
#[cfg(test)]
error_code: onion_error_code,
#[cfg(test)]
network_update: None,
all_paths_failed,
path: path.clone(),
+ short_channel_id: Some(path.first().unwrap().short_channel_id),
#[cfg(test)]
error_code: Some(*failure_code),
#[cfg(test)]
sessions.remove(&session_priv_bytes, path.last().unwrap().fee_msat)
} else { false };
if found_payment {
+ let payment_hash = PaymentHash(Sha256::hash(&payment_preimage.0).into_inner());
self.pending_events.lock().unwrap().push(
- events::Event::PaymentSent { payment_preimage }
+ events::Event::PaymentSent {
+ payment_preimage,
+ payment_hash: payment_hash
+ }
);
} else {
log_trace!(self.logger, "Received duplicative fulfill for HTLC with payment_preimage {}", log_bytes!(payment_preimage.0));
Err(e) => try_chan_entry!(self, Err(e), channel_state, chan),
};
if let Err(e) = self.chain_monitor.watch_channel(chan.get().get_funding_txo().unwrap(), monitor) {
- return_monitor_err!(self, e, channel_state, chan, RAACommitmentOrder::RevokeAndACKFirst, false, false);
+ let mut res = handle_monitor_err!(self, e, channel_state, chan, RAACommitmentOrder::RevokeAndACKFirst, false, false);
+ if let Err(MsgHandleErrInternal { ref mut shutdown_finish, .. }) = res {
+ // We weren't able to watch the channel to begin with, so no updates should be made on
+ // it. Previously, full_stack_target found an (unreachable) panic when the
+ // monitor update contained within `shutdown_finish` was applied.
+ if let Some((ref mut shutdown_finish, _)) = shutdown_finish {
+ shutdown_finish.0.take();
+ }
+ }
+ return res
}
funding_tx
},
msg: update
});
}
- self.pending_events.lock().unwrap().push(events::Event::ChannelClosed { channel_id: msg.channel_id, reason: ClosureReason::CooperativeClosure });
+ self.issue_channel_close_events(&chan, ClosureReason::CooperativeClosure);
}
Ok(())
}
msg: update
});
}
- self.pending_events.lock().unwrap().push(events::Event::ChannelClosed { channel_id: chan.channel_id(), reason: ClosureReason::CommitmentTxConfirmed });
+ self.issue_channel_close_events(&chan, ClosureReason::CommitmentTxConfirmed);
pending_msg_events.push(events::MessageSendEvent::HandleError {
node_id: chan.get_counterparty_node_id(),
action: msgs::ErrorAction::SendErrorMessage {
});
}
- if let Ok(mut pending_events_lock) = self.pending_events.lock() {
- pending_events_lock.push(events::Event::ChannelClosed {
- channel_id: *channel_id,
- reason: ClosureReason::CooperativeClosure
- });
- }
+ self.issue_channel_close_events(chan, ClosureReason::CooperativeClosure);
log_info!(self.logger, "Broadcasting {}", log_tx!(tx));
self.tx_broadcaster.broadcast_transaction(&tx);
self.process_pending_events(&event_handler);
events.into_inner()
}
+
+ #[cfg(test)]
+ pub fn has_pending_payments(&self) -> bool {
+ !self.pending_outbound_payments.lock().unwrap().is_empty()
+ }
}
impl<Signer: Sign, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref> MessageSendEventsProvider for ChannelManager<Signer, M, T, K, F, L>
payment_secrets.retain(|_, inbound_payment| {
inbound_payment.expiry_time > header.time as u64
});
+
+ let mut outbounds = self.pending_outbound_payments.lock().unwrap();
+ outbounds.retain(|_, payment| {
+ const PAYMENT_EXPIRY_BLOCKS: u32 = 3;
+ if payment.remaining_parts() != 0 { return true }
+ if let PendingOutboundPayment::Retryable { starting_block_height, .. } = payment {
+ return *starting_block_height + PAYMENT_EXPIRY_BLOCKS > height
+ }
+ true
+ });
}
fn get_relevant_txids(&self) -> Vec<Txid> {
msg: update
});
}
- self.pending_events.lock().unwrap().push(events::Event::ChannelClosed { channel_id: channel.channel_id(), reason: ClosureReason::CommitmentTxConfirmed });
+ self.issue_channel_close_events(channel, ClosureReason::CommitmentTxConfirmed);
pending_msg_events.push(events::MessageSendEvent::HandleError {
node_id: channel.get_counterparty_node_id(),
action: msgs::ErrorAction::SendErrorMessage { msg: e },
msg: update
});
}
- self.pending_events.lock().unwrap().push(events::Event::ChannelClosed { channel_id: chan.channel_id(), reason: ClosureReason::DisconnectedPeer });
+ self.issue_channel_close_events(chan, ClosureReason::DisconnectedPeer);
false
} else {
true
if let Some(short_id) = chan.get_short_channel_id() {
short_to_id.remove(&short_id);
}
- self.pending_events.lock().unwrap().push(events::Event::ChannelClosed { channel_id: chan.channel_id(), reason: ClosureReason::DisconnectedPeer });
+ self.issue_channel_close_events(chan, ClosureReason::DisconnectedPeer);
return false;
} else {
no_channels_remain = false;
(4, payment_secret, option),
(6, total_msat, required),
(8, pending_amt_msat, required),
+ (10, starting_block_height, required),
},
;);
None => continue,
}
}
+ if forward_htlcs_count > 0 {
+ // If we have pending HTLCs to forward, assume we either dropped a
+ // `PendingHTLCsForwardable` or the user received it but never processed it as they
+ // shut down before the timer hit. Either way, set the time_forwardable to a small
+ // constant as enough time has likely passed that we should simply handle the forwards
+ // now, or at least after the user gets a chance to reconnect to our peers.
+ pending_events_read.push(events::Event::PendingHTLCsForwardable {
+ time_forwardable: Duration::from_secs(2),
+ });
+ }
let background_event_count: u64 = Readable::read(reader)?;
let mut pending_background_events_read: Vec<BackgroundEvent> = Vec::with_capacity(cmp::min(background_event_count as usize, MAX_ALLOC_SIZE/mem::size_of::<BackgroundEvent>()));
use ln::msgs;
use ln::msgs::ChannelMessageHandler;
use routing::router::{get_keysend_route, get_route};
+ use routing::scorer::Scorer;
use util::errors::APIError;
use util::events::{Event, MessageSendEvent, MessageSendEventsProvider};
use util::test_utils;
let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
- let logger = test_utils::TestLogger::new();
// First, send a partial MPP payment.
- let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
- let route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph, &nodes[1].node.get_our_node_id(), Some(InvoiceFeatures::known()), None, &Vec::new(), 100_000, TEST_FINAL_CLTV, &logger).unwrap();
- let (payment_preimage, our_payment_hash, payment_secret) = get_payment_preimage_hash!(&nodes[1]);
+ let (route, our_payment_hash, payment_preimage, payment_secret) = get_route_and_payment_hash!(&nodes[0], nodes[1], 100_000);
let payment_id = PaymentId([42; 32]);
// Use the utility function send_payment_along_path to send the payment with MPP data which
// indicates there are more HTLCs coming.
// further events will be generated for subsequence path successes.
let events = nodes[0].node.get_and_clear_pending_events();
match events[0] {
- Event::PaymentSent { payment_preimage: ref preimage } => {
+ Event::PaymentSent { payment_preimage: ref preimage, payment_hash: ref hash } => {
assert_eq!(payment_preimage, *preimage);
+ assert_eq!(our_payment_hash, *hash);
},
_ => panic!("Unexpected event"),
}
let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
let logger = test_utils::TestLogger::new();
+ let scorer = Scorer::new(0);
// To start (1), send a regular payment but don't claim it.
let expected_route = [&nodes[1]];
let (payment_preimage, payment_hash, _) = route_payment(&nodes[0], &expected_route, 100_000);
// Next, attempt a keysend payment and make sure it fails.
- let route = get_route(&nodes[0].node.get_our_node_id(), &nodes[0].net_graph_msg_handler.network_graph, &expected_route.last().unwrap().node.get_our_node_id(), Some(InvoiceFeatures::known()), None, &Vec::new(), 100_000, TEST_FINAL_CLTV, &logger).unwrap();
+ let route = get_route(&nodes[0].node.get_our_node_id(), &nodes[0].net_graph_msg_handler.network_graph, &expected_route.last().unwrap().node.get_our_node_id(), Some(InvoiceFeatures::known()), None, &Vec::new(), 100_000, TEST_FINAL_CLTV, &logger, &scorer).unwrap();
nodes[0].node.send_spontaneous_payment(&route, Some(payment_preimage)).unwrap();
check_added_monitors!(nodes[0], 1);
let mut events = nodes[0].node.get_and_clear_pending_msg_events();
// To start (2), send a keysend payment but don't claim it.
let payment_preimage = PaymentPreimage([42; 32]);
- let route = get_route(&nodes[0].node.get_our_node_id(), &nodes[0].net_graph_msg_handler.network_graph, &expected_route.last().unwrap().node.get_our_node_id(), Some(InvoiceFeatures::known()), None, &Vec::new(), 100_000, TEST_FINAL_CLTV, &logger).unwrap();
+ let route = get_route(&nodes[0].node.get_our_node_id(), &nodes[0].net_graph_msg_handler.network_graph, &expected_route.last().unwrap().node.get_our_node_id(), Some(InvoiceFeatures::known()), None, &Vec::new(), 100_000, TEST_FINAL_CLTV, &logger, &scorer).unwrap();
let (payment_hash, _) = nodes[0].node.send_spontaneous_payment(&route, Some(payment_preimage)).unwrap();
check_added_monitors!(nodes[0], 1);
let mut events = nodes[0].node.get_and_clear_pending_msg_events();
let _chan = create_chan_between_nodes(&nodes[0], &nodes[1], InitFeatures::known(), InitFeatures::known());
let network_graph = &nodes[0].net_graph_msg_handler.network_graph;
let first_hops = nodes[0].node.list_usable_channels();
+ let scorer = Scorer::new(0);
let route = get_keysend_route(&payer_pubkey, network_graph, &payee_pubkey,
Some(&first_hops.iter().collect::<Vec<_>>()), &vec![], 10000, 40,
- nodes[0].logger).unwrap();
+ nodes[0].logger, &scorer).unwrap();
let test_preimage = PaymentPreimage([42; 32]);
let mismatch_payment_hash = PaymentHash([43; 32]);
let _chan = create_chan_between_nodes(&nodes[0], &nodes[1], InitFeatures::known(), InitFeatures::known());
let network_graph = &nodes[0].net_graph_msg_handler.network_graph;
let first_hops = nodes[0].node.list_usable_channels();
+ let scorer = Scorer::new(0);
let route = get_keysend_route(&payer_pubkey, network_graph, &payee_pubkey,
Some(&first_hops.iter().collect::<Vec<_>>()), &vec![], 10000, 40,
- nodes[0].logger).unwrap();
+ nodes[0].logger, &scorer).unwrap();
let test_preimage = PaymentPreimage([42; 32]);
let test_secret = PaymentSecret([43; 32]);
let chan_2_id = create_announced_chan_between_nodes(&nodes, 0, 2, InitFeatures::known(), InitFeatures::known()).0.contents.short_channel_id;
let chan_3_id = create_announced_chan_between_nodes(&nodes, 1, 3, InitFeatures::known(), InitFeatures::known()).0.contents.short_channel_id;
let chan_4_id = create_announced_chan_between_nodes(&nodes, 2, 3, InitFeatures::known(), InitFeatures::known()).0.contents.short_channel_id;
- let logger = test_utils::TestLogger::new();
// Marshall an MPP route.
- let (_, payment_hash, _) = get_payment_preimage_hash!(&nodes[3]);
- let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
- let mut route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph, &nodes[3].node.get_our_node_id(), Some(InvoiceFeatures::known()), None, &[], 100000, TEST_FINAL_CLTV, &logger).unwrap();
+ let (mut route, payment_hash, _, _) = get_route_and_payment_hash!(&nodes[0], nodes[3], 100000);
let path = route.paths[0].clone();
route.paths.push(path);
route.paths[0][0].pubkey = nodes[1].node.get_our_node_id();
#[cfg(all(any(test, feature = "_test_utils"), feature = "unstable"))]
pub mod bench {
use chain::Listen;
- use chain::chainmonitor::ChainMonitor;
- use chain::channelmonitor::Persist;
+ use chain::chainmonitor::{ChainMonitor, Persist};
use chain::keysinterface::{KeysManager, InMemorySigner};
use ln::channelmanager::{BestBlock, ChainParameters, ChannelManager, PaymentHash, PaymentPreimage};
use ln::features::{InitFeatures, InvoiceFeatures};
use ln::msgs::{ChannelMessageHandler, Init};
use routing::network_graph::NetworkGraph;
use routing::router::get_route;
+ use routing::scorer::Scorer;
use util::test_utils;
use util::config::UserConfig;
use util::events::{Event, MessageSendEvent, MessageSendEventsProvider, PaymentPurpose};
macro_rules! send_payment {
($node_a: expr, $node_b: expr) => {
let usable_channels = $node_a.list_usable_channels();
+ let scorer = Scorer::new(0);
let route = get_route(&$node_a.get_our_node_id(), &dummy_graph, &$node_b.get_our_node_id(), Some(InvoiceFeatures::known()),
- Some(&usable_channels.iter().map(|r| r).collect::<Vec<_>>()), &[], 10_000, TEST_FINAL_CLTV, &logger_a).unwrap();
+ Some(&usable_channels.iter().map(|r| r).collect::<Vec<_>>()), &[], 10_000, TEST_FINAL_CLTV, &logger_a, &scorer).unwrap();
let mut payment_preimage = PaymentPreimage([0; 32]);
payment_preimage.0[0..8].copy_from_slice(&payment_count.to_le_bytes());
projects / rust-lightning / blobdiff