//! payments thereafter.
use crate::chain::{ChannelMonitorUpdateStatus, Confirm, Listen, Watch};
-use crate::chain::channelmonitor::{ANTI_REORG_DELAY, ChannelMonitor, LATENCY_GRACE_PERIOD_BLOCKS};
+use crate::chain::channelmonitor::{ANTI_REORG_DELAY, LATENCY_GRACE_PERIOD_BLOCKS};
use crate::chain::transaction::OutPoint;
use crate::chain::keysinterface::KeysInterface;
use crate::ln::channel::EXPIRE_PREV_CONFIG_TICKS;
-use crate::ln::channelmanager::{self, BREAKDOWN_TIMEOUT, ChannelManager, ChannelManagerReadArgs, MPP_TIMEOUT_TICKS, MIN_CLTV_EXPIRY_DELTA, PaymentId, PaymentSendFailure, IDEMPOTENCY_TIMEOUT_TICKS};
+use crate::ln::channelmanager::{self, BREAKDOWN_TIMEOUT, ChannelManager, MPP_TIMEOUT_TICKS, MIN_CLTV_EXPIRY_DELTA, PaymentId, PaymentSendFailure, IDEMPOTENCY_TIMEOUT_TICKS};
use crate::ln::msgs;
use crate::ln::msgs::ChannelMessageHandler;
use crate::routing::router::{PaymentParameters, get_route};
use crate::util::events::{ClosureReason, Event, HTLCDestination, MessageSendEvent, MessageSendEventsProvider};
use crate::util::test_utils;
use crate::util::errors::APIError;
-use crate::util::enforcing_trait_impls::EnforcingSigner;
-use crate::util::ser::{ReadableArgs, Writeable};
-use crate::io;
+use crate::util::ser::Writeable;
-use bitcoin::{Block, BlockHeader, BlockHash, TxMerkleNode};
+use bitcoin::{Block, BlockHeader, TxMerkleNode};
use bitcoin::hashes::Hash;
use bitcoin::network::constants::Network;
use crate::prelude::*;
use crate::ln::functional_test_utils::*;
+use crate::routing::gossip::NodeId;
#[test]
fn retry_single_path_payment() {
// The ChannelMonitor should always be the latest version, as we're required to persist it
// during the `commitment_signed_dance!()`.
- let mut chan_0_monitor_serialized = test_utils::TestVecWriter(Vec::new());
- get_monitor!(nodes[0], chan_id).write(&mut chan_0_monitor_serialized).unwrap();
-
- persister = test_utils::TestPersister::new();
- let keys_manager = &chanmon_cfgs[0].keys_manager;
- new_chain_monitor = test_utils::TestChainMonitor::new(Some(nodes[0].chain_source), nodes[0].tx_broadcaster.clone(), nodes[0].logger, node_cfgs[0].fee_estimator, &persister, keys_manager);
- nodes[0].chain_monitor = &new_chain_monitor;
- let mut chan_0_monitor_read = &chan_0_monitor_serialized.0[..];
- let (_, mut chan_0_monitor) = <(BlockHash, ChannelMonitor<EnforcingSigner>)>::read(
- &mut chan_0_monitor_read, keys_manager).unwrap();
- assert!(chan_0_monitor_read.is_empty());
-
- let mut nodes_0_read = &nodes_0_serialized[..];
- let (_, nodes_0_deserialized_tmp) = {
- let mut channel_monitors = HashMap::new();
- channel_monitors.insert(chan_0_monitor.get_funding_txo().0, &mut chan_0_monitor);
- <(BlockHash, ChannelManager<&test_utils::TestChainMonitor, &test_utils::TestBroadcaster, &test_utils::TestKeysInterface, &test_utils::TestFeeEstimator, &test_utils::TestLogger>)>::read(&mut nodes_0_read, ChannelManagerReadArgs {
- default_config: test_default_channel_config(),
- keys_manager,
- fee_estimator: node_cfgs[0].fee_estimator,
- chain_monitor: nodes[0].chain_monitor,
- tx_broadcaster: nodes[0].tx_broadcaster.clone(),
- logger: nodes[0].logger,
- channel_monitors,
- }).unwrap()
- };
- nodes_0_deserialized = nodes_0_deserialized_tmp;
- assert!(nodes_0_read.is_empty());
-
- assert_eq!(nodes[0].chain_monitor.watch_channel(chan_0_monitor.get_funding_txo().0, chan_0_monitor),
- ChannelMonitorUpdateStatus::Completed);
- nodes[0].node = &nodes_0_deserialized;
- check_added_monitors!(nodes[0], 1);
+ let chan_0_monitor_serialized = get_monitor!(nodes[0], chan_id).encode();
+ reload_node!(nodes[0], test_default_channel_config(), &nodes_0_serialized, &[&chan_0_monitor_serialized], persister, new_chain_monitor, nodes_0_deserialized);
// On reload, the ChannelManager should realize it is stale compared to the ChannelMonitor and
// force-close the channel.
// The ChannelMonitor should always be the latest version, as we're required to persist it
// during the `commitment_signed_dance!()`.
- let mut chan_0_monitor_serialized = test_utils::TestVecWriter(Vec::new());
- get_monitor!(nodes[0], chan_id).write(&mut chan_0_monitor_serialized).unwrap();
-
- let mut chan_1_monitor_serialized = test_utils::TestVecWriter(Vec::new());
-
- macro_rules! reload_node {
- ($chain_monitor: ident, $chan_manager: ident, $persister: ident) => { {
- $persister = test_utils::TestPersister::new();
- let keys_manager = &chanmon_cfgs[0].keys_manager;
- $chain_monitor = test_utils::TestChainMonitor::new(Some(nodes[0].chain_source), nodes[0].tx_broadcaster.clone(), nodes[0].logger, node_cfgs[0].fee_estimator, &$persister, keys_manager);
- nodes[0].chain_monitor = &$chain_monitor;
- let mut chan_0_monitor_read = &chan_0_monitor_serialized.0[..];
- let (_, mut chan_0_monitor) = <(BlockHash, ChannelMonitor<EnforcingSigner>)>::read(
- &mut chan_0_monitor_read, keys_manager).unwrap();
- assert!(chan_0_monitor_read.is_empty());
-
- let mut chan_1_monitor = None;
- let mut channel_monitors = HashMap::new();
- channel_monitors.insert(chan_0_monitor.get_funding_txo().0, &mut chan_0_monitor);
-
- if !chan_1_monitor_serialized.0.is_empty() {
- let mut chan_1_monitor_read = &chan_1_monitor_serialized.0[..];
- chan_1_monitor = Some(<(BlockHash, ChannelMonitor<EnforcingSigner>)>::read(
- &mut chan_1_monitor_read, keys_manager).unwrap().1);
- assert!(chan_1_monitor_read.is_empty());
- channel_monitors.insert(chan_1_monitor.as_ref().unwrap().get_funding_txo().0, chan_1_monitor.as_mut().unwrap());
- }
-
- let mut nodes_0_read = &nodes_0_serialized[..];
- let (_, nodes_0_deserialized_tmp) = {
- <(BlockHash, ChannelManager<&test_utils::TestChainMonitor, &test_utils::TestBroadcaster, &test_utils::TestKeysInterface, &test_utils::TestFeeEstimator, &test_utils::TestLogger>)>::read(&mut nodes_0_read, ChannelManagerReadArgs {
- default_config: test_default_channel_config(),
- keys_manager,
- fee_estimator: node_cfgs[0].fee_estimator,
- chain_monitor: nodes[0].chain_monitor,
- tx_broadcaster: nodes[0].tx_broadcaster.clone(),
- logger: nodes[0].logger,
- channel_monitors,
- }).unwrap()
- };
- $chan_manager = nodes_0_deserialized_tmp;
- assert!(nodes_0_read.is_empty());
-
- assert_eq!(nodes[0].chain_monitor.watch_channel(chan_0_monitor.get_funding_txo().0, chan_0_monitor),
- ChannelMonitorUpdateStatus::Completed);
- if !chan_1_monitor_serialized.0.is_empty() {
- let funding_txo = chan_1_monitor.as_ref().unwrap().get_funding_txo().0;
- assert_eq!(nodes[0].chain_monitor.watch_channel(funding_txo, chan_1_monitor.unwrap()),
- ChannelMonitorUpdateStatus::Completed);
- }
- nodes[0].node = &$chan_manager;
- check_added_monitors!(nodes[0], if !chan_1_monitor_serialized.0.is_empty() { 2 } else { 1 });
-
- nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false);
- } }
- }
+ let chan_0_monitor_serialized = get_monitor!(nodes[0], chan_id).encode();
- reload_node!(first_new_chain_monitor, first_nodes_0_deserialized, first_persister);
+ reload_node!(nodes[0], test_default_channel_config(), nodes_0_serialized, &[&chan_0_monitor_serialized], first_persister, first_new_chain_monitor, first_nodes_0_deserialized);
+ nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false);
// On reload, the ChannelManager should realize it is stale compared to the ChannelMonitor and
// force-close the channel.
// We set mpp_parts_remain to avoid having abandon_payment called
expect_payment_failed_conditions(&nodes[0], payment_hash, false, PaymentFailedConditions::new().mpp_parts_remain());
- chan_0_monitor_serialized = test_utils::TestVecWriter(Vec::new());
- get_monitor!(nodes[0], chan_id).write(&mut chan_0_monitor_serialized).unwrap();
- chan_1_monitor_serialized = test_utils::TestVecWriter(Vec::new());
- get_monitor!(nodes[0], chan_id_3).write(&mut chan_1_monitor_serialized).unwrap();
+ let chan_0_monitor_serialized = get_monitor!(nodes[0], chan_id).encode();
+ let chan_1_monitor_serialized = get_monitor!(nodes[0], chan_id_3).encode();
nodes_0_serialized = nodes[0].node.encode();
assert!(nodes[0].node.retry_payment(&new_route, payment_id).is_ok());
assert!(!nodes[0].node.get_and_clear_pending_msg_events().is_empty());
- reload_node!(second_new_chain_monitor, second_nodes_0_deserialized, second_persister);
+ reload_node!(nodes[0], test_default_channel_config(), nodes_0_serialized, &[&chan_0_monitor_serialized, &chan_1_monitor_serialized], second_persister, second_new_chain_monitor, second_nodes_0_deserialized);
+ nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false);
+
reconnect_nodes(&nodes[0], &nodes[1], (true, true), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (false, false));
// Now resend the payment, delivering the HTLC and actually claiming it this time. This ensures
assert!(nodes[0].node.retry_payment(&new_route, payment_id).is_err());
assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
- chan_0_monitor_serialized = test_utils::TestVecWriter(Vec::new());
- get_monitor!(nodes[0], chan_id).write(&mut chan_0_monitor_serialized).unwrap();
- chan_1_monitor_serialized = test_utils::TestVecWriter(Vec::new());
- get_monitor!(nodes[0], chan_id_3).write(&mut chan_1_monitor_serialized).unwrap();
+ let chan_0_monitor_serialized = get_monitor!(nodes[0], chan_id).encode();
+ let chan_1_monitor_serialized = get_monitor!(nodes[0], chan_id_3).encode();
nodes_0_serialized = nodes[0].node.encode();
// Ensure that after reload we cannot retry the payment.
- reload_node!(third_new_chain_monitor, third_nodes_0_deserialized, third_persister);
+ reload_node!(nodes[0], test_default_channel_config(), nodes_0_serialized, &[&chan_0_monitor_serialized, &chan_1_monitor_serialized], third_persister, third_new_chain_monitor, third_nodes_0_deserialized);
+ nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false);
+
reconnect_nodes(&nodes[0], &nodes[1], (false, false), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (false, false));
assert!(nodes[0].node.retry_payment(&new_route, payment_id).is_err());
let funding_txo = OutPoint { txid: funding_tx.txid(), index: 0 };
let mon_updates: Vec<_> = chanmon_cfgs[0].persister.chain_sync_monitor_persistences.lock().unwrap()
.get_mut(&funding_txo).unwrap().drain().collect();
- // If we are using chain::Confirm instead of chain::Listen, we will get the same update twice
- assert!(mon_updates.len() == 1 || mon_updates.len() == 2);
+ // If we are using chain::Confirm instead of chain::Listen, we will get the same update twice.
+ // If we're testing connection idempotency we may get substantially more.
+ assert!(mon_updates.len() >= 1);
assert!(nodes[0].chain_monitor.release_pending_monitor_events().is_empty());
assert!(nodes[0].node.get_and_clear_pending_events().is_empty());
// If we persist the ChannelManager here, we should get the PaymentSent event after
// deserialization.
- let mut chan_manager_serialized = test_utils::TestVecWriter(Vec::new());
+ let mut chan_manager_serialized = Vec::new();
if !persist_manager_post_event {
- nodes[0].node.write(&mut chan_manager_serialized).unwrap();
+ chan_manager_serialized = nodes[0].node.encode();
}
// Now persist the ChannelMonitor and inform the ChainMonitor that we're done, generating the
// payment sent event.
chanmon_cfgs[0].persister.set_update_ret(ChannelMonitorUpdateStatus::Completed);
- let mut chan_0_monitor_serialized = test_utils::TestVecWriter(Vec::new());
- get_monitor!(nodes[0], chan_id).write(&mut chan_0_monitor_serialized).unwrap();
+ let chan_0_monitor_serialized = get_monitor!(nodes[0], chan_id).encode();
for update in mon_updates {
nodes[0].chain_monitor.chain_monitor.channel_monitor_updated(funding_txo, update).unwrap();
}
// If we persist the ChannelManager after we get the PaymentSent event, we shouldn't get it
// twice.
if persist_manager_post_event {
- nodes[0].node.write(&mut chan_manager_serialized).unwrap();
+ chan_manager_serialized = nodes[0].node.encode();
}
// Now reload nodes[0]...
- persister = test_utils::TestPersister::new();
- let keys_manager = &chanmon_cfgs[0].keys_manager;
- new_chain_monitor = test_utils::TestChainMonitor::new(Some(nodes[0].chain_source), nodes[0].tx_broadcaster.clone(), nodes[0].logger, node_cfgs[0].fee_estimator, &persister, keys_manager);
- nodes[0].chain_monitor = &new_chain_monitor;
- let mut chan_0_monitor_read = &chan_0_monitor_serialized.0[..];
- let (_, mut chan_0_monitor) = <(BlockHash, ChannelMonitor<EnforcingSigner>)>::read(
- &mut chan_0_monitor_read, keys_manager).unwrap();
- assert!(chan_0_monitor_read.is_empty());
-
- let (_, nodes_0_deserialized_tmp) = {
- let mut channel_monitors = HashMap::new();
- channel_monitors.insert(chan_0_monitor.get_funding_txo().0, &mut chan_0_monitor);
- <(BlockHash, ChannelManager<&test_utils::TestChainMonitor, &test_utils::TestBroadcaster, &test_utils::TestKeysInterface, &test_utils::TestFeeEstimator, &test_utils::TestLogger>)>
- ::read(&mut io::Cursor::new(&chan_manager_serialized.0[..]), ChannelManagerReadArgs {
- default_config: Default::default(),
- keys_manager,
- fee_estimator: node_cfgs[0].fee_estimator,
- chain_monitor: nodes[0].chain_monitor,
- tx_broadcaster: nodes[0].tx_broadcaster.clone(),
- logger: nodes[0].logger,
- channel_monitors,
- }).unwrap()
- };
- nodes_0_deserialized = nodes_0_deserialized_tmp;
-
- assert_eq!(nodes[0].chain_monitor.watch_channel(chan_0_monitor.get_funding_txo().0, chan_0_monitor),
- ChannelMonitorUpdateStatus::Completed);
- check_added_monitors!(nodes[0], 1);
- nodes[0].node = &nodes_0_deserialized;
+ reload_node!(nodes[0], &chan_manager_serialized, &[&chan_0_monitor_serialized], persister, new_chain_monitor, nodes_0_deserialized);
if persist_manager_post_event {
assert!(nodes[0].node.get_and_clear_pending_events().is_empty());
// The simplest way to get a failure after a fulfill is to reload nodes[1] from a state
// pre-fulfill, which we do by serializing it here.
- let mut chan_manager_serialized = test_utils::TestVecWriter(Vec::new());
- nodes[1].node.write(&mut chan_manager_serialized).unwrap();
- let mut chan_0_monitor_serialized = test_utils::TestVecWriter(Vec::new());
- get_monitor!(nodes[1], chan_id).write(&mut chan_0_monitor_serialized).unwrap();
+ let chan_manager_serialized = nodes[1].node.encode();
+ let chan_0_monitor_serialized = get_monitor!(nodes[1], chan_id).encode();
nodes[1].node.claim_funds(payment_preimage);
check_added_monitors!(nodes[1], 1);
expect_payment_sent_without_paths!(nodes[0], payment_preimage);
// Now reload nodes[1]...
- persister = test_utils::TestPersister::new();
- let keys_manager = &chanmon_cfgs[1].keys_manager;
- new_chain_monitor = test_utils::TestChainMonitor::new(Some(nodes[1].chain_source), nodes[1].tx_broadcaster.clone(), nodes[1].logger, node_cfgs[1].fee_estimator, &persister, keys_manager);
- nodes[1].chain_monitor = &new_chain_monitor;
- let mut chan_0_monitor_read = &chan_0_monitor_serialized.0[..];
- let (_, mut chan_0_monitor) = <(BlockHash, ChannelMonitor<EnforcingSigner>)>::read(
- &mut chan_0_monitor_read, keys_manager).unwrap();
- assert!(chan_0_monitor_read.is_empty());
-
- let (_, nodes_1_deserialized_tmp) = {
- let mut channel_monitors = HashMap::new();
- channel_monitors.insert(chan_0_monitor.get_funding_txo().0, &mut chan_0_monitor);
- <(BlockHash, ChannelManager<&test_utils::TestChainMonitor, &test_utils::TestBroadcaster, &test_utils::TestKeysInterface, &test_utils::TestFeeEstimator, &test_utils::TestLogger>)>
- ::read(&mut io::Cursor::new(&chan_manager_serialized.0[..]), ChannelManagerReadArgs {
- default_config: Default::default(),
- keys_manager,
- fee_estimator: node_cfgs[1].fee_estimator,
- chain_monitor: nodes[1].chain_monitor,
- tx_broadcaster: nodes[1].tx_broadcaster.clone(),
- logger: nodes[1].logger,
- channel_monitors,
- }).unwrap()
- };
- nodes_1_deserialized = nodes_1_deserialized_tmp;
-
- assert_eq!(nodes[1].chain_monitor.watch_channel(chan_0_monitor.get_funding_txo().0, chan_0_monitor),
- ChannelMonitorUpdateStatus::Completed);
- check_added_monitors!(nodes[1], 1);
- nodes[1].node = &nodes_1_deserialized;
+ reload_node!(nodes[1], &chan_manager_serialized, &[&chan_0_monitor_serialized], persister, new_chain_monitor, nodes_1_deserialized);
nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false);
reconnect_nodes(&nodes[0], &nodes[1], (false, false), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (false, false));
// payment_id, it should be rejected.
let send_result = nodes[0].node.send_payment(&route, second_payment_hash, &Some(second_payment_secret), payment_id);
match send_result {
- Err(PaymentSendFailure::ParameterError(APIError::RouteError { err: "Payment already in progress" })) => {},
+ Err(PaymentSendFailure::DuplicatePayment) => {},
_ => panic!("Unexpected send result: {:?}", send_result),
}
// also be rejected.
let send_result = nodes[0].node.send_spontaneous_payment(&route, None, payment_id);
match send_result {
- Err(PaymentSendFailure::ParameterError(APIError::RouteError { err: "Payment already in progress" })) => {},
+ Err(PaymentSendFailure::DuplicatePayment) => {},
_ => panic!("Unexpected send result: {:?}", send_result),
}
}
// payment_id, it should be rejected.
let send_result = nodes[0].node.send_payment(&route, second_payment_hash, &Some(second_payment_secret), payment_id);
match send_result {
- Err(PaymentSendFailure::ParameterError(APIError::RouteError { err: "Payment already in progress" })) => {},
+ Err(PaymentSendFailure::DuplicatePayment) => {},
_ => panic!("Unexpected send result: {:?}", send_result),
}
// also be rejected.
let send_result = nodes[0].node.send_spontaneous_payment(&route, None, payment_id);
match send_result {
- Err(PaymentSendFailure::ParameterError(APIError::RouteError { err: "Payment already in progress" })) => {},
+ Err(PaymentSendFailure::DuplicatePayment) => {},
_ => panic!("Unexpected send result: {:?}", send_result),
}
}
pass_along_route(&nodes[0], &[&[&nodes[1]]], 100_000, second_payment_hash, second_payment_secret);
claim_payment(&nodes[0], &[&nodes[1]], second_payment_preimage);
}
+
+#[test]
+fn test_trivial_inflight_htlc_tracking(){
+ // In this test, we test three scenarios:
+ // (1) Sending + claiming a payment successfully should return `None` when querying InFlightHtlcs
+ // (2) Sending a payment without claiming it should return the payment's value (500000) when querying InFlightHtlcs
+ // (3) After we claim the payment sent in (2), InFlightHtlcs should return `None` for the query.
+ 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]);
+ let nodes = create_network(3, &node_cfgs, &node_chanmgrs);
+
+ let (_, _, chan_1_id, _) = create_announced_chan_between_nodes(&nodes, 0, 1, channelmanager::provided_init_features(), channelmanager::provided_init_features());
+ let (_, _, chan_2_id, _) = create_announced_chan_between_nodes(&nodes, 1, 2, channelmanager::provided_init_features(), channelmanager::provided_init_features());
+
+ // Send and claim the payment. Inflight HTLCs should be empty.
+ send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 500000);
+ {
+ let inflight_htlcs = node_chanmgrs[0].compute_inflight_htlcs();
+
+ let node_0_channel_lock = nodes[0].node.channel_state.lock().unwrap();
+ let node_1_channel_lock = nodes[1].node.channel_state.lock().unwrap();
+ let channel_1 = node_0_channel_lock.by_id.get(&chan_1_id).unwrap();
+ let channel_2 = node_1_channel_lock.by_id.get(&chan_2_id).unwrap();
+
+ let chan_1_used_liquidity = inflight_htlcs.used_liquidity_msat(
+ &NodeId::from_pubkey(&nodes[0].node.get_our_node_id()) ,
+ &NodeId::from_pubkey(&nodes[1].node.get_our_node_id()),
+ channel_1.get_short_channel_id().unwrap()
+ );
+ let chan_2_used_liquidity = inflight_htlcs.used_liquidity_msat(
+ &NodeId::from_pubkey(&nodes[1].node.get_our_node_id()) ,
+ &NodeId::from_pubkey(&nodes[2].node.get_our_node_id()),
+ channel_2.get_short_channel_id().unwrap()
+ );
+
+ assert_eq!(chan_1_used_liquidity, None);
+ assert_eq!(chan_2_used_liquidity, None);
+ }
+
+ // Send the payment, but do not claim it. Our inflight HTLCs should contain the pending payment.
+ let (payment_preimage, _, _) = route_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 500000);
+ {
+ let inflight_htlcs = node_chanmgrs[0].compute_inflight_htlcs();
+
+ let node_0_channel_lock = nodes[0].node.channel_state.lock().unwrap();
+ let node_1_channel_lock = nodes[1].node.channel_state.lock().unwrap();
+ let channel_1 = node_0_channel_lock.by_id.get(&chan_1_id).unwrap();
+ let channel_2 = node_1_channel_lock.by_id.get(&chan_2_id).unwrap();
+
+ let chan_1_used_liquidity = inflight_htlcs.used_liquidity_msat(
+ &NodeId::from_pubkey(&nodes[0].node.get_our_node_id()) ,
+ &NodeId::from_pubkey(&nodes[1].node.get_our_node_id()),
+ channel_1.get_short_channel_id().unwrap()
+ );
+ let chan_2_used_liquidity = inflight_htlcs.used_liquidity_msat(
+ &NodeId::from_pubkey(&nodes[1].node.get_our_node_id()) ,
+ &NodeId::from_pubkey(&nodes[2].node.get_our_node_id()),
+ channel_2.get_short_channel_id().unwrap()
+ );
+
+ // First hop accounts for expected 1000 msat fee
+ assert_eq!(chan_1_used_liquidity, Some(501000));
+ assert_eq!(chan_2_used_liquidity, Some(500000));
+ }
+
+ // Now, let's claim the payment. This should result in the used liquidity to return `None`.
+ claim_payment(&nodes[0], &[&nodes[1], &nodes[2]], payment_preimage);
+ {
+ let inflight_htlcs = node_chanmgrs[0].compute_inflight_htlcs();
+
+ let node_0_channel_lock = nodes[0].node.channel_state.lock().unwrap();
+ let node_1_channel_lock = nodes[1].node.channel_state.lock().unwrap();
+ let channel_1 = node_0_channel_lock.by_id.get(&chan_1_id).unwrap();
+ let channel_2 = node_1_channel_lock.by_id.get(&chan_2_id).unwrap();
+
+ let chan_1_used_liquidity = inflight_htlcs.used_liquidity_msat(
+ &NodeId::from_pubkey(&nodes[0].node.get_our_node_id()) ,
+ &NodeId::from_pubkey(&nodes[1].node.get_our_node_id()),
+ channel_1.get_short_channel_id().unwrap()
+ );
+ let chan_2_used_liquidity = inflight_htlcs.used_liquidity_msat(
+ &NodeId::from_pubkey(&nodes[1].node.get_our_node_id()) ,
+ &NodeId::from_pubkey(&nodes[2].node.get_our_node_id()),
+ channel_2.get_short_channel_id().unwrap()
+ );
+
+ assert_eq!(chan_1_used_liquidity, None);
+ assert_eq!(chan_2_used_liquidity, None);
+ }
+}
+
+#[test]
+fn test_holding_cell_inflight_htlcs() {
+ 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 mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
+ let channel_id = create_announced_chan_between_nodes(&nodes, 0, 1, channelmanager::provided_init_features(), channelmanager::provided_init_features()).2;
+
+ let (route, payment_hash_1, _, payment_secret_1) = get_route_and_payment_hash!(nodes[0], nodes[1], 1000000);
+ let (_, payment_hash_2, payment_secret_2) = get_payment_preimage_hash!(nodes[1]);
+
+ // Queue up two payments - one will be delivered right away, one immediately goes into the
+ // holding cell as nodes[0] is AwaitingRAA.
+ {
+ nodes[0].node.send_payment(&route, payment_hash_1, &Some(payment_secret_1), PaymentId(payment_hash_1.0)).unwrap();
+ check_added_monitors!(nodes[0], 1);
+ nodes[0].node.send_payment(&route, payment_hash_2, &Some(payment_secret_2), PaymentId(payment_hash_2.0)).unwrap();
+ check_added_monitors!(nodes[0], 0);
+ }
+
+ let inflight_htlcs = node_chanmgrs[0].compute_inflight_htlcs();
+
+ {
+ let channel_lock = nodes[0].node.channel_state.lock().unwrap();
+ let channel = channel_lock.by_id.get(&channel_id).unwrap();
+
+ let used_liquidity = inflight_htlcs.used_liquidity_msat(
+ &NodeId::from_pubkey(&nodes[0].node.get_our_node_id()) ,
+ &NodeId::from_pubkey(&nodes[1].node.get_our_node_id()),
+ channel.get_short_channel_id().unwrap()
+ );
+
+ assert_eq!(used_liquidity, Some(2000000));
+ }
+
+ // Clear pending events so test doesn't throw a "Had excess message on node..." error
+ nodes[0].node.get_and_clear_pending_msg_events();
+}