X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=lightning-invoice%2Fsrc%2Fpayment.rs;h=4fddedc0c0749e908889fcdc82db028c877c4612;hb=4a0010d7393bb32305bdb3d859735b7b563462eb;hp=cbd760c37d02d045c82cbc942432c1f2c82dc419;hpb=593d8c4610f082441563d4906d64175a354b1cfc;p=rust-lightning diff --git a/lightning-invoice/src/payment.rs b/lightning-invoice/src/payment.rs index cbd760c3..4fddedc0 100644 --- a/lightning-invoice/src/payment.rs +++ b/lightning-invoice/src/payment.rs @@ -44,7 +44,7 @@ //! # use lightning::util::logger::{Logger, Record}; //! # use lightning::util::ser::{Writeable, Writer}; //! # use lightning_invoice::Invoice; -//! # use lightning_invoice::payment::{InvoicePayer, Payer, Retry, ScoringRouter}; +//! # use lightning_invoice::payment::{InvoicePayer, Payer, Retry}; //! # use secp256k1::PublicKey; //! # use std::cell::RefCell; //! # use std::ops::Deref; @@ -69,6 +69,7 @@ //! # &self, route: &Route, payment_id: PaymentId //! # ) -> Result<(), PaymentSendFailure> { unimplemented!() } //! # fn abandon_payment(&self, payment_id: PaymentId) { unimplemented!() } +//! # fn inflight_htlcs(&self) -> InFlightHtlcs { unimplemented!() } //! # } //! # //! # struct FakeRouter {} @@ -77,8 +78,6 @@ //! # &self, payer: &PublicKey, params: &RouteParameters, //! # first_hops: Option<&[&ChannelDetails]>, _inflight_htlcs: InFlightHtlcs //! # ) -> Result { unimplemented!() } -//! # } -//! # impl ScoringRouter for FakeRouter { //! # fn notify_payment_path_failed(&self, path: &[&RouteHop], short_channel_id: u64) { unimplemented!() } //! # fn notify_payment_path_successful(&self, path: &[&RouteHop]) { unimplemented!() } //! # fn notify_payment_probe_successful(&self, path: &[&RouteHop]) { unimplemented!() } @@ -145,9 +144,7 @@ use crate::prelude::*; use lightning::ln::{PaymentHash, PaymentPreimage, PaymentSecret}; use lightning::ln::channelmanager::{ChannelDetails, PaymentId, PaymentSendFailure}; use lightning::ln::msgs::LightningError; -use lightning::routing::gossip::NodeId; -use lightning::routing::router::{InFlightHtlcs, PaymentParameters, Route, RouteHop, RouteParameters, Router}; -use lightning::util::errors::APIError; +use lightning::routing::router::{InFlightHtlcs, PaymentParameters, Route, RouteParameters, Router}; use lightning::util::events::{Event, EventHandler}; use lightning::util::logger::Logger; use crate::time_utils::Time; @@ -187,7 +184,7 @@ mod sealed { /// (C-not exported) generally all users should use the [`InvoicePayer`] type alias. pub struct InvoicePayerUsingTime< P: Deref, - R: ScoringRouter, + R: Router, L: Deref, E: sealed::BaseEventHandler, T: Time @@ -200,26 +197,10 @@ pub struct InvoicePayerUsingTime< logger: L, event_handler: E, /// Caches the overall attempts at making a payment, which is updated prior to retrying. - payment_cache: Mutex>>, + payment_cache: Mutex>>, retry: Retry, } -/// Used by [`InvoicePayerUsingTime::payment_cache`] to track the payments that are either -/// currently being made, or have outstanding paths that need retrying. -struct PaymentInfo { - attempts: PaymentAttempts, - paths: Vec>, -} - -impl PaymentInfo { - fn new() -> Self { - PaymentInfo { - attempts: PaymentAttempts::new(), - paths: vec![], - } - } -} - /// Storing minimal payment attempts information required for determining if a outbound payment can /// be retried. #[derive(Clone, Copy)] @@ -290,30 +271,10 @@ pub trait Payer { /// Signals that no further retries for the given payment will occur. fn abandon_payment(&self, payment_id: PaymentId); -} -/// A trait defining behavior for a [`Router`] implementation that also supports scoring channels -/// based on payment and probe success/failure. -/// -/// [`Router`]: lightning::routing::router::Router -pub trait ScoringRouter: Router { - /// Finds a [`Route`] between `payer` and `payee` for a payment with the given values. Includes - /// `PaymentHash` and `PaymentId` to be able to correlate the request with a specific payment. - fn find_route_with_id( - &self, payer: &PublicKey, route_params: &RouteParameters, - first_hops: Option<&[&ChannelDetails]>, inflight_htlcs: InFlightHtlcs, - _payment_hash: PaymentHash, _payment_id: PaymentId - ) -> Result { - self.find_route(payer, route_params, first_hops, inflight_htlcs) - } - /// Lets the router know that payment through a specific path has failed. - fn notify_payment_path_failed(&self, path: &[&RouteHop], short_channel_id: u64); - /// Lets the router know that payment through a specific path was successful. - fn notify_payment_path_successful(&self, path: &[&RouteHop]); - /// Lets the router know that a payment probe was successful. - fn notify_payment_probe_successful(&self, path: &[&RouteHop]); - /// Lets the router know that a payment probe failed. - fn notify_payment_probe_failed(&self, path: &[&RouteHop], short_channel_id: u64); + /// Construct an [`InFlightHtlcs`] containing information about currently used up liquidity + /// across payments. + fn inflight_htlcs(&self) -> InFlightHtlcs; } /// Strategies available to retry payment path failures for an [`Invoice`]. @@ -355,7 +316,7 @@ pub enum PaymentError { Sending(PaymentSendFailure), } -impl +impl InvoicePayerUsingTime where P::Target: Payer, @@ -455,7 +416,7 @@ where let payment_hash = PaymentHash(invoice.payment_hash().clone().into_inner()); match self.payment_cache.lock().unwrap().entry(payment_hash) { hash_map::Entry::Occupied(_) => return Err(PaymentError::Invoice("payment pending")), - hash_map::Entry::Vacant(entry) => entry.insert(PaymentInfo::new()), + hash_map::Entry::Vacant(entry) => entry.insert(PaymentAttempts::new()), }; let payment_secret = Some(invoice.payment_secret().clone()); @@ -519,7 +480,7 @@ where ) -> Result<(), PaymentError> { match self.payment_cache.lock().unwrap().entry(payment_hash) { hash_map::Entry::Occupied(_) => return Err(PaymentError::Invoice("payment pending")), - hash_map::Entry::Vacant(entry) => entry.insert(PaymentInfo::new()), + hash_map::Entry::Vacant(entry) => entry.insert(PaymentAttempts::new()), }; let route_params = RouteParameters { @@ -547,45 +508,29 @@ where let payer = self.payer.node_id(); let first_hops = self.payer.first_hops(); - let inflight_htlcs = self.create_inflight_map(); + let inflight_htlcs = self.payer.inflight_htlcs(); let route = self.router.find_route( &payer, ¶ms, Some(&first_hops.iter().collect::>()), inflight_htlcs ).map_err(|e| PaymentError::Routing(e))?; match send_payment(&route) { - Ok(()) => { - for path in route.paths { - self.process_path_inflight_htlcs(payment_hash, path); - } - Ok(()) - }, + Ok(()) => Ok(()), Err(e) => match e { PaymentSendFailure::ParameterError(_) => Err(e), PaymentSendFailure::PathParameterError(_) => Err(e), - PaymentSendFailure::AllFailedRetrySafe(_) => { + PaymentSendFailure::DuplicatePayment => Err(e), + PaymentSendFailure::AllFailedResendSafe(_) => { let mut payment_cache = self.payment_cache.lock().unwrap(); - let payment_info = payment_cache.get_mut(&payment_hash).unwrap(); - payment_info.attempts.count += 1; - if self.retry.is_retryable_now(&payment_info.attempts) { + let payment_attempts = payment_cache.get_mut(&payment_hash).unwrap(); + payment_attempts.count += 1; + if self.retry.is_retryable_now(payment_attempts) { core::mem::drop(payment_cache); Ok(self.pay_internal(params, payment_hash, send_payment)?) } else { Err(e) } }, - PaymentSendFailure::PartialFailure { failed_paths_retry, payment_id, results } => { - // If a `PartialFailure` event returns a result that is an `Ok()`, it means that - // part of our payment is retried. When we receive `MonitorUpdateInProgress`, it - // means that we are still waiting for our channel monitor update to be completed. - for (result, path) in results.iter().zip(route.paths.into_iter()) { - match result { - Ok(_) | Err(APIError::MonitorUpdateInProgress) => { - self.process_path_inflight_htlcs(payment_hash, path); - }, - _ => {}, - } - } - + PaymentSendFailure::PartialFailure { failed_paths_retry, payment_id, .. } => { if let Some(retry_data) = failed_paths_retry { // Some paths were sent, even if we failed to send the full MPP value our // recipient may misbehave and claim the funds, at which point we have to @@ -605,36 +550,16 @@ where }.map_err(|e| PaymentError::Sending(e)) } - // Takes in a path to have its information stored in `payment_cache`. This is done for paths - // that are pending retry. - fn process_path_inflight_htlcs(&self, payment_hash: PaymentHash, path: Vec) { - self.payment_cache.lock().unwrap().entry(payment_hash) - .or_insert_with(|| PaymentInfo::new()) - .paths.push(path); - } - - // Find the path we want to remove in `payment_cache`. If it doesn't exist, do nothing. - fn remove_path_inflight_htlcs(&self, payment_hash: PaymentHash, path: &Vec) { - self.payment_cache.lock().unwrap().entry(payment_hash) - .and_modify(|payment_info| { - if let Some(idx) = payment_info.paths.iter().position(|p| p == path) { - payment_info.paths.swap_remove(idx); - } - }); - } - fn retry_payment( &self, payment_id: PaymentId, payment_hash: PaymentHash, params: &RouteParameters ) -> Result<(), ()> { - let attempts = self.payment_cache.lock().unwrap().entry(payment_hash) - .and_modify(|info| info.attempts.count += 1 ) - .or_insert_with(|| PaymentInfo { - attempts: PaymentAttempts { + let attempts = + *self.payment_cache.lock().unwrap().entry(payment_hash) + .and_modify(|attempts| attempts.count += 1) + .or_insert(PaymentAttempts { count: 1, - first_attempted_at: T::now(), - }, - paths: vec![], - }).attempts; + first_attempted_at: T::now() + }); if !self.retry.is_retryable_now(&attempts) { log_trace!(self.logger, "Payment {} exceeded maximum attempts; not retrying ({})", log_bytes!(payment_hash.0), attempts); @@ -650,7 +575,7 @@ where let payer = self.payer.node_id(); let first_hops = self.payer.first_hops(); - let inflight_htlcs = self.create_inflight_map(); + let inflight_htlcs = self.payer.inflight_htlcs(); let route = self.router.find_route( &payer, ¶ms, Some(&first_hops.iter().collect::>()), inflight_htlcs @@ -662,33 +587,20 @@ where } match self.payer.retry_payment(&route.as_ref().unwrap(), payment_id) { - Ok(()) => { - for path in route.unwrap().paths.into_iter() { - self.process_path_inflight_htlcs(payment_hash, path); - } - Ok(()) - }, + Ok(()) => Ok(()), Err(PaymentSendFailure::ParameterError(_)) | Err(PaymentSendFailure::PathParameterError(_)) => { log_trace!(self.logger, "Failed to retry for payment {} due to bogus route/payment data, not retrying.", log_bytes!(payment_hash.0)); Err(()) }, - Err(PaymentSendFailure::AllFailedRetrySafe(_)) => { + Err(PaymentSendFailure::AllFailedResendSafe(_)) => { self.retry_payment(payment_id, payment_hash, params) }, - Err(PaymentSendFailure::PartialFailure { failed_paths_retry, results, .. }) => { - // If a `PartialFailure` error contains a result that is an `Ok()`, it means that - // part of our payment is retried. When we receive `MonitorUpdateInProgress`, it - // means that we are still waiting for our channel monitor update to complete. - for (result, path) in results.iter().zip(route.unwrap().paths.into_iter()) { - match result { - Ok(_) | Err(APIError::MonitorUpdateInProgress) => { - self.process_path_inflight_htlcs(payment_hash, path); - }, - _ => {}, - } - } - + Err(PaymentSendFailure::DuplicatePayment) => { + log_error!(self.logger, "Got a DuplicatePayment error when attempting to retry a payment, this shouldn't happen."); + Err(()) + } + Err(PaymentSendFailure::PartialFailure { failed_paths_retry, .. }) => { if let Some(retry) = failed_paths_retry { // Always return Ok for the same reason as noted in pay_internal. let _ = self.retry_payment(payment_id, payment_hash, &retry); @@ -705,46 +617,6 @@ where pub fn remove_cached_payment(&self, payment_hash: &PaymentHash) { self.payment_cache.lock().unwrap().remove(payment_hash); } - - /// Use path information in the payment_cache to construct a HashMap mapping a channel's short - /// channel id and direction to the amount being sent through it. - /// - /// This function should be called whenever we need information about currently used up liquidity - /// across payments. - fn create_inflight_map(&self) -> InFlightHtlcs { - let mut total_inflight_map: HashMap<(u64, bool), u64> = HashMap::new(); - // Make an attempt at finding existing payment information from `payment_cache`. If it - // does not exist, it probably is a fresh payment and we can just return an empty - // HashMap. - for payment_info in self.payment_cache.lock().unwrap().values() { - for path in &payment_info.paths { - if path.is_empty() { break }; - // total_inflight_map needs to be direction-sensitive when keeping track of the HTLC value - // that is held up. However, the `hops` array, which is a path returned by `find_route` in - // the router excludes the payer node. In the following lines, the payer's information is - // hardcoded with an inflight value of 0 so that we can correctly represent the first hop - // in our sliding window of two. - let our_node_id: PublicKey = self.payer.node_id(); - let reversed_hops_with_payer = path.iter().rev().skip(1) - .map(|hop| hop.pubkey) - .chain(core::iter::once(our_node_id)); - let mut cumulative_msat = 0; - - // Taking the reversed vector from above, we zip it with just the reversed hops list to - // work "backwards" of the given path, since the last hop's `fee_msat` actually represents - // the total amount sent. - for (next_hop, prev_hop) in path.iter().rev().zip(reversed_hops_with_payer) { - cumulative_msat += next_hop.fee_msat; - total_inflight_map - .entry((next_hop.short_channel_id, NodeId::from_pubkey(&prev_hop) < NodeId::from_pubkey(&next_hop.pubkey))) - .and_modify(|used_liquidity_msat| *used_liquidity_msat += cumulative_msat) - .or_insert(cumulative_msat); - } - } - } - - InFlightHtlcs::new(total_inflight_map) - } } fn expiry_time_from_unix_epoch(invoice: &Invoice) -> Duration { @@ -758,7 +630,7 @@ fn has_expired(route_params: &RouteParameters) -> bool { } else { false } } -impl +impl InvoicePayerUsingTime where P::Target: Payer, @@ -767,16 +639,6 @@ where /// Returns a bool indicating whether the processed event should be forwarded to a user-provided /// event handler. fn handle_event_internal(&self, event: &Event) -> bool { - match event { - Event::PaymentPathFailed { payment_hash, path, .. } - | Event::PaymentPathSuccessful { path, payment_hash: Some(payment_hash), .. } - | Event::ProbeSuccessful { payment_hash, path, .. } - | Event::ProbeFailed { payment_hash, path, .. } => { - self.remove_path_inflight_htlcs(*payment_hash, path); - }, - _ => {}, - } - match event { Event::PaymentPathFailed { payment_id, payment_hash, payment_failed_permanently, path, short_channel_id, retry, .. @@ -812,7 +674,7 @@ where let mut payment_cache = self.payment_cache.lock().unwrap(); let attempts = payment_cache .remove(payment_hash) - .map_or(1, |payment_info| payment_info.attempts.count + 1); + .map_or(1, |attempts| attempts.count + 1); log_trace!(self.logger, "Payment {} succeeded (attempts: {})", log_bytes!(payment_hash.0), attempts); }, Event::ProbeSuccessful { payment_hash, path, .. } => { @@ -835,7 +697,7 @@ where } } -impl +impl EventHandler for InvoicePayerUsingTime where P::Target: Payer, @@ -849,7 +711,7 @@ where } } -impl F> +impl F> InvoicePayerUsingTime where P::Target: Payer, @@ -869,7 +731,7 @@ where mod tests { use super::*; use crate::{InvoiceBuilder, Currency}; - use crate::utils::{ScorerAccountingForInFlightHtlcs, create_invoice_from_channelmanager_and_duration_since_epoch}; + use crate::utils::create_invoice_from_channelmanager_and_duration_since_epoch; use bitcoin_hashes::sha256::Hash as Sha256; use lightning::ln::PaymentPreimage; use lightning::ln::channelmanager; @@ -877,7 +739,7 @@ mod tests { use lightning::ln::functional_test_utils::*; use lightning::ln::msgs::{ChannelMessageHandler, ErrorAction, LightningError}; use lightning::routing::gossip::{EffectiveCapacity, NodeId}; - use lightning::routing::router::{InFlightHtlcs, PaymentParameters, Route, RouteHop, Router}; + use lightning::routing::router::{InFlightHtlcs, PaymentParameters, Route, RouteHop, Router, ScorerAccountingForInFlightHtlcs}; use lightning::routing::scoring::{ChannelUsage, LockableScore, Score}; use lightning::util::test_utils::TestLogger; use lightning::util::errors::APIError; @@ -889,7 +751,6 @@ mod tests { use std::time::{SystemTime, Duration}; use crate::time_utils::tests::SinceEpoch; use crate::DEFAULT_EXPIRY_TIME; - use lightning::util::errors::APIError::{ChannelUnavailable, MonitorUpdateInProgress}; fn invoice(payment_preimage: PaymentPreimage) -> Invoice { let payment_hash = Sha256::hash(&payment_preimage.0); @@ -1609,66 +1470,17 @@ mod tests { } #[test] - fn generates_correct_inflight_map_data() { - let event_handled = core::cell::RefCell::new(false); - let event_handler = |_: Event| { *event_handled.borrow_mut() = true; }; - - let payment_preimage = PaymentPreimage([1; 32]); - let invoice = invoice(payment_preimage); - let payment_hash = Some(PaymentHash(invoice.payment_hash().clone().into_inner())); - let final_value_msat = invoice.amount_milli_satoshis().unwrap(); - - let payer = TestPayer::new().expect_send(Amount::ForInvoice(final_value_msat)); - let final_value_msat = invoice.amount_milli_satoshis().unwrap(); - let route = TestRouter::route_for_value(final_value_msat); - let router = TestRouter::new(TestScorer::new()); - let logger = TestLogger::new(); - let invoice_payer = - InvoicePayer::new(&payer, router, &logger, event_handler, Retry::Attempts(0)); - - let payment_id = invoice_payer.pay_invoice(&invoice).unwrap(); - - let inflight_map = invoice_payer.create_inflight_map(); - // First path check - assert_eq!(inflight_map.0.get(&(0, false)).unwrap().clone(), 94); - assert_eq!(inflight_map.0.get(&(1, true)).unwrap().clone(), 84); - assert_eq!(inflight_map.0.get(&(2, false)).unwrap().clone(), 64); - - // Second path check - assert_eq!(inflight_map.0.get(&(3, false)).unwrap().clone(), 74); - assert_eq!(inflight_map.0.get(&(4, false)).unwrap().clone(), 64); - - invoice_payer.handle_event(Event::PaymentPathSuccessful { - payment_id, payment_hash, path: route.paths[0].clone() - }); - - let inflight_map = invoice_payer.create_inflight_map(); - - assert_eq!(inflight_map.0.get(&(0, false)), None); - assert_eq!(inflight_map.0.get(&(1, true)), None); - assert_eq!(inflight_map.0.get(&(2, false)), None); - - // Second path should still be inflight - assert_eq!(inflight_map.0.get(&(3, false)).unwrap().clone(), 74); - assert_eq!(inflight_map.0.get(&(4, false)).unwrap().clone(), 64) - } - - #[test] - fn considers_inflight_htlcs_between_invoice_payments_when_path_succeeds() { - // First, let's just send a payment through, but only make sure one of the path completes + fn considers_inflight_htlcs_between_invoice_payments() { let event_handled = core::cell::RefCell::new(false); let event_handler = |_: Event| { *event_handled.borrow_mut() = true; }; let payment_preimage = PaymentPreimage([1; 32]); let payment_invoice = invoice(payment_preimage); - let payment_hash = Some(PaymentHash(payment_invoice.payment_hash().clone().into_inner())); let final_value_msat = payment_invoice.amount_milli_satoshis().unwrap(); let payer = TestPayer::new() .expect_send(Amount::ForInvoice(final_value_msat)) .expect_send(Amount::ForInvoice(final_value_msat)); - let final_value_msat = payment_invoice.amount_milli_satoshis().unwrap(); - let route = TestRouter::route_for_value(final_value_msat); let scorer = TestScorer::new() // 1st invoice, 1st path .expect_usage(ChannelUsage { amount_msat: 64, inflight_htlc_msat: 0, effective_capacity: EffectiveCapacity::Unknown } ) @@ -1678,9 +1490,9 @@ mod tests { .expect_usage(ChannelUsage { amount_msat: 64, inflight_htlc_msat: 0, effective_capacity: EffectiveCapacity::Unknown } ) .expect_usage(ChannelUsage { amount_msat: 74, inflight_htlc_msat: 0, effective_capacity: EffectiveCapacity::Unknown } ) // 2nd invoice, 1st path - .expect_usage(ChannelUsage { amount_msat: 64, inflight_htlc_msat: 0, effective_capacity: EffectiveCapacity::Unknown } ) - .expect_usage(ChannelUsage { amount_msat: 84, inflight_htlc_msat: 0, effective_capacity: EffectiveCapacity::Unknown } ) - .expect_usage(ChannelUsage { amount_msat: 94, inflight_htlc_msat: 0, effective_capacity: EffectiveCapacity::Unknown } ) + .expect_usage(ChannelUsage { amount_msat: 64, inflight_htlc_msat: 64, effective_capacity: EffectiveCapacity::Unknown } ) + .expect_usage(ChannelUsage { amount_msat: 84, inflight_htlc_msat: 84, effective_capacity: EffectiveCapacity::Unknown } ) + .expect_usage(ChannelUsage { amount_msat: 94, inflight_htlc_msat: 94, effective_capacity: EffectiveCapacity::Unknown } ) // 2nd invoice, 2nd path .expect_usage(ChannelUsage { amount_msat: 64, inflight_htlc_msat: 64, effective_capacity: EffectiveCapacity::Unknown } ) .expect_usage(ChannelUsage { amount_msat: 74, inflight_htlc_msat: 74, effective_capacity: EffectiveCapacity::Unknown } ); @@ -1689,16 +1501,12 @@ mod tests { let invoice_payer = InvoicePayer::new(&payer, router, &logger, event_handler, Retry::Attempts(0)); - // Succeed 1st path, leave 2nd path inflight - let payment_id = invoice_payer.pay_invoice(&payment_invoice).unwrap(); - invoice_payer.handle_event(Event::PaymentPathSuccessful { - payment_id, payment_hash, path: route.paths[0].clone() - }); + // Make first invoice payment. + invoice_payer.pay_invoice(&payment_invoice).unwrap(); // Let's pay a second invoice that will be using the same path. This should trigger the - // assertions that expect the last 4 ChannelUsage values above where TestScorer is initialized. - // Particularly, the 2nd path of the 1st payment, since it is not yet complete, should still - // have 64 msats inflight for paths considering the channel with scid of 1. + // assertions that expect `ChannelUsage` values of the first invoice payment that is still + // in-flight. let payment_preimage_2 = PaymentPreimage([2; 32]); let payment_invoice_2 = invoice(payment_preimage_2); invoice_payer.pay_invoice(&payment_invoice_2).unwrap(); @@ -1749,6 +1557,7 @@ mod tests { // Fail 1st path, leave 2nd path inflight let payment_id = Some(invoice_payer.pay_invoice(&payment_invoice).unwrap()); + invoice_payer.payer.fail_path(&TestRouter::path_for_value(final_value_msat)); invoice_payer.handle_event(Event::PaymentPathFailed { payment_id, payment_hash, @@ -1761,6 +1570,7 @@ mod tests { }); // Fails again the 1st path of our retry + invoice_payer.payer.fail_path(&TestRouter::path_for_value(final_value_msat / 2)); invoice_payer.handle_event(Event::PaymentPathFailed { payment_id, payment_hash, @@ -1776,67 +1586,6 @@ mod tests { }); } - #[test] - fn accounts_for_some_inflight_htlcs_sent_during_partial_failure() { - let event_handled = core::cell::RefCell::new(false); - let event_handler = |_: Event| { *event_handled.borrow_mut() = true; }; - - let payment_preimage = PaymentPreimage([1; 32]); - let invoice_to_pay = invoice(payment_preimage); - let final_value_msat = invoice_to_pay.amount_milli_satoshis().unwrap(); - - let retry = TestRouter::retry_for_invoice(&invoice_to_pay); - let payer = TestPayer::new() - .fails_with_partial_failure( - retry.clone(), OnAttempt(1), - Some(vec![ - Err(ChannelUnavailable { err: "abc".to_string() }), Err(MonitorUpdateInProgress) - ])) - .expect_send(Amount::ForInvoice(final_value_msat)); - - let router = TestRouter::new(TestScorer::new()); - let logger = TestLogger::new(); - let invoice_payer = - InvoicePayer::new(&payer, router, &logger, event_handler, Retry::Attempts(0)); - - invoice_payer.pay_invoice(&invoice_to_pay).unwrap(); - let inflight_map = invoice_payer.create_inflight_map(); - - // Only the second path, which failed with `MonitorUpdateInProgress` should be added to our - // inflight map because retries are disabled. - assert_eq!(inflight_map.0.len(), 2); - } - - #[test] - fn accounts_for_all_inflight_htlcs_sent_during_partial_failure() { - let event_handled = core::cell::RefCell::new(false); - let event_handler = |_: Event| { *event_handled.borrow_mut() = true; }; - - let payment_preimage = PaymentPreimage([1; 32]); - let invoice_to_pay = invoice(payment_preimage); - let final_value_msat = invoice_to_pay.amount_milli_satoshis().unwrap(); - - let retry = TestRouter::retry_for_invoice(&invoice_to_pay); - let payer = TestPayer::new() - .fails_with_partial_failure( - retry.clone(), OnAttempt(1), - Some(vec![ - Ok(()), Err(MonitorUpdateInProgress) - ])) - .expect_send(Amount::ForInvoice(final_value_msat)); - - let router = TestRouter::new(TestScorer::new()); - let logger = TestLogger::new(); - let invoice_payer = - InvoicePayer::new(&payer, router, &logger, event_handler, Retry::Attempts(0)); - - invoice_payer.pay_invoice(&invoice_to_pay).unwrap(); - let inflight_map = invoice_payer.create_inflight_map(); - - // All paths successful, hence we check of the existence of all 5 hops. - assert_eq!(inflight_map.0.len(), 5); - } - struct TestRouter { scorer: RefCell, } @@ -1951,9 +1700,7 @@ mod tests { payment_params: Some(route_params.payment_params.clone()), ..Self::route_for_value(route_params.final_value_msat) }) } - } - impl ScoringRouter for TestRouter { fn notify_payment_path_failed(&self, path: &[&RouteHop], short_channel_id: u64) { self.scorer.lock().payment_path_failed(path, short_channel_id); } @@ -1980,9 +1727,7 @@ mod tests { ) -> Result { Err(LightningError { err: String::new(), action: ErrorAction::IgnoreError }) } - } - impl ScoringRouter for FailingRouter { fn notify_payment_path_failed(&self, _path: &[&RouteHop], _short_channel_id: u64) {} fn notify_payment_path_successful(&self, _path: &[&RouteHop]) {} @@ -2124,6 +1869,7 @@ mod tests { expectations: core::cell::RefCell>, attempts: core::cell::RefCell, failing_on_attempt: core::cell::RefCell>, + inflight_htlcs_paths: core::cell::RefCell>>, } #[derive(Clone, Debug, PartialEq, Eq)] @@ -2141,6 +1887,7 @@ mod tests { expectations: core::cell::RefCell::new(VecDeque::new()), attempts: core::cell::RefCell::new(0), failing_on_attempt: core::cell::RefCell::new(HashMap::new()), + inflight_htlcs_paths: core::cell::RefCell::new(Vec::new()), } } @@ -2185,6 +1932,20 @@ mod tests { panic!("Unexpected amount: {:?}", actual_value_msats); } } + + fn track_inflight_htlcs(&self, route: &Route) { + for path in &route.paths { + self.inflight_htlcs_paths.borrow_mut().push(path.clone()); + } + } + + fn fail_path(&self, path: &Vec) { + let path_idx = self.inflight_htlcs_paths.borrow().iter().position(|p| p == path); + + if let Some(idx) = path_idx { + self.inflight_htlcs_paths.borrow_mut().swap_remove(idx); + } + } } impl Drop for TestPayer { @@ -2214,6 +1975,7 @@ mod tests { _payment_secret: &Option, _payment_id: PaymentId, ) -> Result<(), PaymentSendFailure> { self.check_value_msats(Amount::ForInvoice(route.get_total_amount())); + self.track_inflight_htlcs(route); self.check_attempts() } @@ -2228,10 +1990,19 @@ mod tests { &self, route: &Route, _payment_id: PaymentId ) -> Result<(), PaymentSendFailure> { self.check_value_msats(Amount::OnRetry(route.get_total_amount())); + self.track_inflight_htlcs(route); self.check_attempts() } fn abandon_payment(&self, _payment_id: PaymentId) { } + + fn inflight_htlcs(&self) -> InFlightHtlcs { + let mut inflight_htlcs = InFlightHtlcs::new(); + for path in self.inflight_htlcs_paths.clone().into_inner() { + inflight_htlcs.process_path(&path, self.node_id()); + } + inflight_htlcs + } } // *** Full Featured Functional Tests with a Real ChannelManager *** @@ -2244,8 +2015,7 @@ mod tests { ) -> Result { self.0.borrow_mut().pop_front().unwrap() } - } - impl ScoringRouter for ManualRouter { + fn notify_payment_path_failed(&self, _path: &[&RouteHop], _short_channel_id: u64) {} fn notify_payment_path_successful(&self, _path: &[&RouteHop]) {}