X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=lightning-c-bindings%2Fsrc%2Flightning%2Frouting%2Fscoring.rs;h=85def69b662a7b4a379fa73d11e496ecb3225228;hb=4995ea79aac663f4474048a4059700dc67115dbe;hp=31676d0d98d1b8fc90cfd5acc1bfbb54a0b51fab;hpb=18ac1ea0225fcf9d2073c1f7a03b13945572695d;p=ldk-c-bindings diff --git a/lightning-c-bindings/src/lightning/routing/scoring.rs b/lightning-c-bindings/src/lightning/routing/scoring.rs index 31676d0..85def69 100644 --- a/lightning-c-bindings/src/lightning/routing/scoring.rs +++ b/lightning-c-bindings/src/lightning/routing/scoring.rs @@ -19,6 +19,7 @@ //! # use lightning::routing::network_graph::NetworkGraph; //! # use lightning::routing::router::{RouteParameters, find_route}; //! # use lightning::routing::scoring::{ProbabilisticScorer, ProbabilisticScoringParameters, Scorer, ScoringParameters}; +//! # use lightning::chain::keysinterface::{KeysManager, KeysInterface}; //! # use lightning::util::logger::{Logger, Record}; //! # use secp256k1::key::PublicKey; //! # @@ -39,8 +40,9 @@ //! ..ProbabilisticScoringParameters::default() //! }; //! let scorer = ProbabilisticScorer::new(params, &network_graph); +//! # let random_seed_bytes = [42u8; 32]; //! -//! let route = find_route(&payer, &route_params, &network_graph, None, &logger, &scorer); +//! let route = find_route(&payer, &route_params, &network_graph, None, &logger, &scorer, &random_seed_bytes); //! # } //! ``` //! @@ -309,21 +311,24 @@ impl FixedPenaltyScorer { ret } } -#[no_mangle] -/// Serialize the FixedPenaltyScorer object into a byte array which can be read by FixedPenaltyScorer_read -pub extern "C" fn FixedPenaltyScorer_write(obj: &FixedPenaltyScorer) -> crate::c_types::derived::CVec_u8Z { - crate::c_types::serialize_obj(unsafe { &*obj }.get_native_ref()) +impl Clone for FixedPenaltyScorer { + fn clone(&self) -> Self { + Self { + inner: if <*mut nativeFixedPenaltyScorer>::is_null(self.inner) { core::ptr::null_mut() } else { + ObjOps::heap_alloc(unsafe { &*ObjOps::untweak_ptr(self.inner) }.clone()) }, + is_owned: true, + } + } } -#[no_mangle] -pub(crate) extern "C" fn FixedPenaltyScorer_write_void(obj: *const c_void) -> crate::c_types::derived::CVec_u8Z { - crate::c_types::serialize_obj(unsafe { &*(obj as *const nativeFixedPenaltyScorer) }) +#[allow(unused)] +/// Used only if an object of this type is returned as a trait impl by a method +pub(crate) extern "C" fn FixedPenaltyScorer_clone_void(this_ptr: *const c_void) -> *mut c_void { + Box::into_raw(Box::new(unsafe { (*(this_ptr as *mut nativeFixedPenaltyScorer)).clone() })) as *mut c_void } #[no_mangle] -/// Read a FixedPenaltyScorer from a byte array, created by FixedPenaltyScorer_write -pub extern "C" fn FixedPenaltyScorer_read(ser: crate::c_types::u8slice) -> crate::c_types::derived::CResult_FixedPenaltyScorerDecodeErrorZ { - let res: Result = crate::c_types::deserialize_obj(ser); - let mut local_res = match res { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::lightning::routing::scoring::FixedPenaltyScorer { inner: ObjOps::heap_alloc(o), is_owned: true } }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::lightning::ln::msgs::DecodeError { inner: ObjOps::heap_alloc(e), is_owned: true } }).into() }; - local_res +/// Creates a copy of the FixedPenaltyScorer +pub extern "C" fn FixedPenaltyScorer_clone(orig: &FixedPenaltyScorer) -> FixedPenaltyScorer { + orig.clone() } /// Creates a new scorer using `penalty_msat`. #[must_use] @@ -371,6 +376,23 @@ extern "C" fn FixedPenaltyScorer_Score_payment_path_successful(this_arg: *mut c_ >::payment_path_successful(unsafe { &mut *(this_arg as *mut nativeFixedPenaltyScorer) }, &local__path[..]) } +#[no_mangle] +/// Serialize the FixedPenaltyScorer object into a byte array which can be read by FixedPenaltyScorer_read +pub extern "C" fn FixedPenaltyScorer_write(obj: &FixedPenaltyScorer) -> crate::c_types::derived::CVec_u8Z { + crate::c_types::serialize_obj(unsafe { &*obj }.get_native_ref()) +} +#[no_mangle] +pub(crate) extern "C" fn FixedPenaltyScorer_write_void(obj: *const c_void) -> crate::c_types::derived::CVec_u8Z { + crate::c_types::serialize_obj(unsafe { &*(obj as *const nativeFixedPenaltyScorer) }) +} +#[no_mangle] +/// Read a FixedPenaltyScorer from a byte array, created by FixedPenaltyScorer_write +pub extern "C" fn FixedPenaltyScorer_read(ser: crate::c_types::u8slice, arg: u64) -> crate::c_types::derived::CResult_FixedPenaltyScorerDecodeErrorZ { + let arg_conv = arg; + let res: Result = crate::c_types::deserialize_obj_arg(ser, arg_conv); + let mut local_res = match res { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::lightning::routing::scoring::FixedPenaltyScorer { inner: ObjOps::heap_alloc(o), is_owned: true } }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::lightning::ln::msgs::DecodeError { inner: ObjOps::heap_alloc(e), is_owned: true } }).into() }; + local_res +} use lightning::routing::scoring::Scorer as nativeScorerImport; pub(crate) type nativeScorer = nativeScorerImport; @@ -616,6 +638,25 @@ pub extern "C" fn ScoringParameters_new(mut base_penalty_msat_arg: u64, mut fail failure_penalty_half_life: core::time::Duration::from_secs(failure_penalty_half_life_arg), }), is_owned: true } } +impl Clone for ScoringParameters { + fn clone(&self) -> Self { + Self { + inner: if <*mut nativeScoringParameters>::is_null(self.inner) { core::ptr::null_mut() } else { + ObjOps::heap_alloc(unsafe { &*ObjOps::untweak_ptr(self.inner) }.clone()) }, + is_owned: true, + } + } +} +#[allow(unused)] +/// Used only if an object of this type is returned as a trait impl by a method +pub(crate) extern "C" fn ScoringParameters_clone_void(this_ptr: *const c_void) -> *mut c_void { + Box::into_raw(Box::new(unsafe { (*(this_ptr as *mut nativeScoringParameters)).clone() })) as *mut c_void +} +#[no_mangle] +/// Creates a copy of the ScoringParameters +pub extern "C" fn ScoringParameters_clone(orig: &ScoringParameters) -> ScoringParameters { + orig.clone() +} #[no_mangle] /// Serialize the ScoringParameters object into a byte array which can be read by ScoringParameters_read pub extern "C" fn ScoringParameters_write(obj: &ScoringParameters) -> crate::c_types::derived::CVec_u8Z { @@ -707,10 +748,85 @@ pub extern "C" fn Scorer_read(ser: crate::c_types::u8slice) -> crate::c_types::d local_res } +use lightning::routing::scoring::ProbabilisticScorer as nativeProbabilisticScorerImport; +pub(crate) type nativeProbabilisticScorer = nativeProbabilisticScorerImport<&'static lightning::routing::network_graph::NetworkGraph>; + +/// [`Score`] implementation using channel success probability distributions. +/// +/// Based on *Optimally Reliable & Cheap Payment Flows on the Lightning Network* by Rene Pickhardt +/// and Stefan Richter [[1]]. Given the uncertainty of channel liquidity balances, probability +/// distributions are defined based on knowledge learned from successful and unsuccessful attempts. +/// Then the negative `log10` of the success probability is used to determine the cost of routing a +/// specific HTLC amount through a channel. +/// +/// Knowledge about channel liquidity balances takes the form of upper and lower bounds on the +/// possible liquidity. Certainty of the bounds is decreased over time using a decay function. See +/// [`ProbabilisticScoringParameters`] for details. +/// +/// Since the scorer aims to learn the current channel liquidity balances, it works best for nodes +/// with high payment volume or that actively probe the [`NetworkGraph`]. Nodes with low payment +/// volume are more likely to experience failed payment paths, which would need to be retried. +/// +/// # Note +/// +/// Mixing the `no-std` feature between serialization and deserialization results in undefined +/// behavior. +/// +/// [1]: https://arxiv.org/abs/2107.05322 +#[must_use] +#[repr(C)] +pub struct ProbabilisticScorer { + /// A pointer to the opaque Rust object. + + /// Nearly everywhere, inner must be non-null, however in places where + /// the Rust equivalent takes an Option, it may be set to null to indicate None. + pub inner: *mut nativeProbabilisticScorer, + /// Indicates that this is the only struct which contains the same pointer. + + /// Rust functions which take ownership of an object provided via an argument require + /// this to be true and invalidate the object pointed to by inner. + pub is_owned: bool, +} + +impl Drop for ProbabilisticScorer { + fn drop(&mut self) { + if self.is_owned && !<*mut nativeProbabilisticScorer>::is_null(self.inner) { + let _ = unsafe { Box::from_raw(ObjOps::untweak_ptr(self.inner)) }; + } + } +} +/// Frees any resources used by the ProbabilisticScorer, if is_owned is set and inner is non-NULL. +#[no_mangle] +pub extern "C" fn ProbabilisticScorer_free(this_obj: ProbabilisticScorer) { } +#[allow(unused)] +/// Used only if an object of this type is returned as a trait impl by a method +pub(crate) extern "C" fn ProbabilisticScorer_free_void(this_ptr: *mut c_void) { + unsafe { let _ = Box::from_raw(this_ptr as *mut nativeProbabilisticScorer); } +} +#[allow(unused)] +impl ProbabilisticScorer { + pub(crate) fn get_native_ref(&self) -> &'static nativeProbabilisticScorer { + unsafe { &*ObjOps::untweak_ptr(self.inner) } + } + pub(crate) fn get_native_mut_ref(&self) -> &'static mut nativeProbabilisticScorer { + unsafe { &mut *ObjOps::untweak_ptr(self.inner) } + } + /// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy + pub(crate) fn take_inner(mut self) -> *mut nativeProbabilisticScorer { + assert!(self.is_owned); + let ret = ObjOps::untweak_ptr(self.inner); + self.inner = core::ptr::null_mut(); + ret + } +} + use lightning::routing::scoring::ProbabilisticScoringParameters as nativeProbabilisticScoringParametersImport; pub(crate) type nativeProbabilisticScoringParameters = nativeProbabilisticScoringParametersImport; /// Parameters for configuring [`ProbabilisticScorer`]. +/// +/// Used to configure base, liquidity, and amount penalties, the sum of which comprises the channel +/// penalty (i.e., the amount in msats willing to be paid to avoid routing through the channel). #[must_use] #[repr(C)] pub struct ProbabilisticScoringParameters { @@ -757,17 +873,32 @@ impl ProbabilisticScoringParameters { ret } } -/// A multiplier used to determine the amount in msats willing to be paid to avoid routing -/// through a channel, as per multiplying by the negative `log10` of the channel's success -/// probability for a payment. +/// A fixed penalty in msats to apply to each channel. /// -/// The success probability is determined by the effective channel capacity, the payment amount, -/// and knowledge learned from prior successful and unsuccessful payments. The lower bound of -/// the success probability is 0.01, effectively limiting the penalty to the range -/// `0..=2*liquidity_penalty_multiplier_msat`. The knowledge learned is decayed over time based -/// on [`liquidity_offset_half_life`]. +/// Default value: 500 msat +#[no_mangle] +pub extern "C" fn ProbabilisticScoringParameters_get_base_penalty_msat(this_ptr: &ProbabilisticScoringParameters) -> u64 { + let mut inner_val = &mut this_ptr.get_native_mut_ref().base_penalty_msat; + *inner_val +} +/// A fixed penalty in msats to apply to each channel. +/// +/// Default value: 500 msat +#[no_mangle] +pub extern "C" fn ProbabilisticScoringParameters_set_base_penalty_msat(this_ptr: &mut ProbabilisticScoringParameters, mut val: u64) { + unsafe { &mut *ObjOps::untweak_ptr(this_ptr.inner) }.base_penalty_msat = val; +} +/// A multiplier used in conjunction with the negative `log10` of the channel's success +/// probability for a payment to determine the liquidity penalty. /// -/// Default value: 10,000 msat +/// The penalty is based in part on the knowledge learned from prior successful and unsuccessful +/// payments. This knowledge is decayed over time based on [`liquidity_offset_half_life`]. The +/// penalty is effectively limited to `2 * liquidity_penalty_multiplier_msat` (corresponding to +/// lower bounding the success probability to `0.01`) when the amount falls within the +/// uncertainty bounds of the channel liquidity balance. Amounts above the upper bound will +/// result in a `u64::max_value` penalty, however. +/// +/// Default value: 40,000 msat /// /// [`liquidity_offset_half_life`]: Self::liquidity_offset_half_life #[no_mangle] @@ -775,17 +906,17 @@ pub extern "C" fn ProbabilisticScoringParameters_get_liquidity_penalty_multiplie let mut inner_val = &mut this_ptr.get_native_mut_ref().liquidity_penalty_multiplier_msat; *inner_val } -/// A multiplier used to determine the amount in msats willing to be paid to avoid routing -/// through a channel, as per multiplying by the negative `log10` of the channel's success -/// probability for a payment. +/// A multiplier used in conjunction with the negative `log10` of the channel's success +/// probability for a payment to determine the liquidity penalty. /// -/// The success probability is determined by the effective channel capacity, the payment amount, -/// and knowledge learned from prior successful and unsuccessful payments. The lower bound of -/// the success probability is 0.01, effectively limiting the penalty to the range -/// `0..=2*liquidity_penalty_multiplier_msat`. The knowledge learned is decayed over time based -/// on [`liquidity_offset_half_life`]. +/// The penalty is based in part on the knowledge learned from prior successful and unsuccessful +/// payments. This knowledge is decayed over time based on [`liquidity_offset_half_life`]. The +/// penalty is effectively limited to `2 * liquidity_penalty_multiplier_msat` (corresponding to +/// lower bounding the success probability to `0.01`) when the amount falls within the +/// uncertainty bounds of the channel liquidity balance. Amounts above the upper bound will +/// result in a `u64::max_value` penalty, however. /// -/// Default value: 10,000 msat +/// Default value: 40,000 msat /// /// [`liquidity_offset_half_life`]: Self::liquidity_offset_half_life #[no_mangle] @@ -827,13 +958,58 @@ pub extern "C" fn ProbabilisticScoringParameters_get_liquidity_offset_half_life( pub extern "C" fn ProbabilisticScoringParameters_set_liquidity_offset_half_life(this_ptr: &mut ProbabilisticScoringParameters, mut val: u64) { unsafe { &mut *ObjOps::untweak_ptr(this_ptr.inner) }.liquidity_offset_half_life = core::time::Duration::from_secs(val); } +/// A multiplier used in conjunction with a payment amount and the negative `log10` of the +/// channel's success probability for the payment to determine the amount penalty. +/// +/// The purpose of the amount penalty is to avoid having fees dominate the channel cost (i.e., +/// fees plus penalty) for large payments. The penalty is computed as the product of this +/// multiplier and `2^20`ths of the payment amount, weighted by the negative `log10` of the +/// success probability. +/// +/// `-log10(success_probability) * amount_penalty_multiplier_msat * amount_msat / 2^20` +/// +/// In practice, this means for 0.1 success probability (`-log10(0.1) == 1`) each `2^20`th of +/// the amount will result in a penalty of the multiplier. And, as the success probability +/// decreases, the negative `log10` weighting will increase dramatically. For higher success +/// probabilities, the multiplier will have a decreasing effect as the negative `log10` will +/// fall below `1`. +/// +/// Default value: 256 msat +#[no_mangle] +pub extern "C" fn ProbabilisticScoringParameters_get_amount_penalty_multiplier_msat(this_ptr: &ProbabilisticScoringParameters) -> u64 { + let mut inner_val = &mut this_ptr.get_native_mut_ref().amount_penalty_multiplier_msat; + *inner_val +} +/// A multiplier used in conjunction with a payment amount and the negative `log10` of the +/// channel's success probability for the payment to determine the amount penalty. +/// +/// The purpose of the amount penalty is to avoid having fees dominate the channel cost (i.e., +/// fees plus penalty) for large payments. The penalty is computed as the product of this +/// multiplier and `2^20`ths of the payment amount, weighted by the negative `log10` of the +/// success probability. +/// +/// `-log10(success_probability) * amount_penalty_multiplier_msat * amount_msat / 2^20` +/// +/// In practice, this means for 0.1 success probability (`-log10(0.1) == 1`) each `2^20`th of +/// the amount will result in a penalty of the multiplier. And, as the success probability +/// decreases, the negative `log10` weighting will increase dramatically. For higher success +/// probabilities, the multiplier will have a decreasing effect as the negative `log10` will +/// fall below `1`. +/// +/// Default value: 256 msat +#[no_mangle] +pub extern "C" fn ProbabilisticScoringParameters_set_amount_penalty_multiplier_msat(this_ptr: &mut ProbabilisticScoringParameters, mut val: u64) { + unsafe { &mut *ObjOps::untweak_ptr(this_ptr.inner) }.amount_penalty_multiplier_msat = val; +} /// Constructs a new ProbabilisticScoringParameters given each field #[must_use] #[no_mangle] -pub extern "C" fn ProbabilisticScoringParameters_new(mut liquidity_penalty_multiplier_msat_arg: u64, mut liquidity_offset_half_life_arg: u64) -> ProbabilisticScoringParameters { +pub extern "C" fn ProbabilisticScoringParameters_new(mut base_penalty_msat_arg: u64, mut liquidity_penalty_multiplier_msat_arg: u64, mut liquidity_offset_half_life_arg: u64, mut amount_penalty_multiplier_msat_arg: u64) -> ProbabilisticScoringParameters { ProbabilisticScoringParameters { inner: ObjOps::heap_alloc(nativeProbabilisticScoringParameters { + base_penalty_msat: base_penalty_msat_arg, liquidity_penalty_multiplier_msat: liquidity_penalty_multiplier_msat_arg, liquidity_offset_half_life: core::time::Duration::from_secs(liquidity_offset_half_life_arg), + amount_penalty_multiplier_msat: amount_penalty_multiplier_msat_arg, }), is_owned: true } } impl Clone for ProbabilisticScoringParameters { @@ -855,27 +1031,88 @@ pub(crate) extern "C" fn ProbabilisticScoringParameters_clone_void(this_ptr: *co pub extern "C" fn ProbabilisticScoringParameters_clone(orig: &ProbabilisticScoringParameters) -> ProbabilisticScoringParameters { orig.clone() } +/// Creates a new scorer using the given scoring parameters for sending payments from a node +/// through a network graph. +#[must_use] #[no_mangle] -/// Serialize the ProbabilisticScoringParameters object into a byte array which can be read by ProbabilisticScoringParameters_read -pub extern "C" fn ProbabilisticScoringParameters_write(obj: &ProbabilisticScoringParameters) -> crate::c_types::derived::CVec_u8Z { - crate::c_types::serialize_obj(unsafe { &*obj }.get_native_ref()) +pub extern "C" fn ProbabilisticScorer_new(mut params: crate::lightning::routing::scoring::ProbabilisticScoringParameters, network_graph: &crate::lightning::routing::network_graph::NetworkGraph) -> ProbabilisticScorer { + let mut ret = lightning::routing::scoring::ProbabilisticScorer::new(*unsafe { Box::from_raw(params.take_inner()) }, network_graph.get_native_ref()); + ProbabilisticScorer { inner: ObjOps::heap_alloc(ret), is_owned: true } } + +/// Creates a "default" ProbabilisticScoringParameters. See struct and individual field documentaiton for details on which values are used. +#[must_use] #[no_mangle] -pub(crate) extern "C" fn ProbabilisticScoringParameters_write_void(obj: *const c_void) -> crate::c_types::derived::CVec_u8Z { - crate::c_types::serialize_obj(unsafe { &*(obj as *const nativeProbabilisticScoringParameters) }) +pub extern "C" fn ProbabilisticScoringParameters_default() -> ProbabilisticScoringParameters { + ProbabilisticScoringParameters { inner: ObjOps::heap_alloc(Default::default()), is_owned: true } } +impl From for crate::lightning::routing::scoring::Score { + fn from(obj: nativeProbabilisticScorer) -> Self { + let mut rust_obj = ProbabilisticScorer { inner: ObjOps::heap_alloc(obj), is_owned: true }; + let mut ret = ProbabilisticScorer_as_Score(&rust_obj); + // We want to free rust_obj when ret gets drop()'d, not rust_obj, so wipe rust_obj's pointer and set ret's free() fn + rust_obj.inner = core::ptr::null_mut(); + ret.free = Some(ProbabilisticScorer_free_void); + ret + } +} +/// Constructs a new Score which calls the relevant methods on this_arg. +/// This copies the `inner` pointer in this_arg and thus the returned Score must be freed before this_arg is #[no_mangle] -/// Read a ProbabilisticScoringParameters from a byte array, created by ProbabilisticScoringParameters_write -pub extern "C" fn ProbabilisticScoringParameters_read(ser: crate::c_types::u8slice) -> crate::c_types::derived::CResult_ProbabilisticScoringParametersDecodeErrorZ { - let res: Result = crate::c_types::deserialize_obj(ser); - let mut local_res = match res { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::lightning::routing::scoring::ProbabilisticScoringParameters { inner: ObjOps::heap_alloc(o), is_owned: true } }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::lightning::ln::msgs::DecodeError { inner: ObjOps::heap_alloc(e), is_owned: true } }).into() }; - local_res +pub extern "C" fn ProbabilisticScorer_as_Score(this_arg: &ProbabilisticScorer) -> crate::lightning::routing::scoring::Score { + crate::lightning::routing::scoring::Score { + this_arg: unsafe { ObjOps::untweak_ptr((*this_arg).inner) as *mut c_void }, + free: None, + channel_penalty_msat: ProbabilisticScorer_Score_channel_penalty_msat, + payment_path_failed: ProbabilisticScorer_Score_payment_path_failed, + payment_path_successful: ProbabilisticScorer_Score_payment_path_successful, + write: ProbabilisticScorer_write_void, + } } -/// Creates a "default" ProbabilisticScoringParameters. See struct and individual field documentaiton for details on which values are used. + #[must_use] +extern "C" fn ProbabilisticScorer_Score_channel_penalty_msat(this_arg: *const c_void, mut short_channel_id: u64, mut amount_msat: u64, mut capacity_msat: u64, source: &crate::lightning::routing::network_graph::NodeId, target: &crate::lightning::routing::network_graph::NodeId) -> u64 { + let mut ret = >::channel_penalty_msat(unsafe { &mut *(this_arg as *mut nativeProbabilisticScorer) }, short_channel_id, amount_msat, capacity_msat, source.get_native_ref(), target.get_native_ref()); + ret +} +extern "C" fn ProbabilisticScorer_Score_payment_path_failed(this_arg: *mut c_void, mut path: crate::c_types::derived::CVec_RouteHopZ, mut short_channel_id: u64) { + let mut local_path = Vec::new(); for mut item in path.as_slice().iter() { local_path.push( { item.get_native_ref() }); }; + >::payment_path_failed(unsafe { &mut *(this_arg as *mut nativeProbabilisticScorer) }, &local_path[..], short_channel_id) +} +extern "C" fn ProbabilisticScorer_Score_payment_path_successful(this_arg: *mut c_void, mut path: crate::c_types::derived::CVec_RouteHopZ) { + let mut local_path = Vec::new(); for mut item in path.as_slice().iter() { local_path.push( { item.get_native_ref() }); }; + >::payment_path_successful(unsafe { &mut *(this_arg as *mut nativeProbabilisticScorer) }, &local_path[..]) +} + +mod approx { + +use alloc::str::FromStr; +use core::ffi::c_void; +use core::convert::Infallible; +use bitcoin::hashes::Hash; +use crate::c_types::*; +#[cfg(feature="no-std")] +use alloc::{vec::Vec, boxed::Box}; + +} #[no_mangle] -pub extern "C" fn ProbabilisticScoringParameters_default() -> ProbabilisticScoringParameters { - ProbabilisticScoringParameters { inner: ObjOps::heap_alloc(Default::default()), is_owned: true } +/// Serialize the ProbabilisticScorer object into a byte array which can be read by ProbabilisticScorer_read +pub extern "C" fn ProbabilisticScorer_write(obj: &ProbabilisticScorer) -> crate::c_types::derived::CVec_u8Z { + crate::c_types::serialize_obj(unsafe { &*obj }.get_native_ref()) +} +#[no_mangle] +pub(crate) extern "C" fn ProbabilisticScorer_write_void(obj: *const c_void) -> crate::c_types::derived::CVec_u8Z { + crate::c_types::serialize_obj(unsafe { &*(obj as *const nativeProbabilisticScorer) }) +} +#[no_mangle] +/// Read a ProbabilisticScorer from a byte array, created by ProbabilisticScorer_write +pub extern "C" fn ProbabilisticScorer_read(ser: crate::c_types::u8slice, arg_a: crate::lightning::routing::scoring::ProbabilisticScoringParameters, arg_b: &crate::lightning::routing::network_graph::NetworkGraph) -> crate::c_types::derived::CResult_ProbabilisticScorerDecodeErrorZ { + let arg_a_conv = *unsafe { Box::from_raw(arg_a.take_inner()) }; + let arg_b_conv = arg_b.get_native_ref(); + let arg_conv = (arg_a_conv, arg_b_conv); + let res: Result, lightning::ln::msgs::DecodeError> = crate::c_types::deserialize_obj_arg(ser, arg_conv); + let mut local_res = match res { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::lightning::routing::scoring::ProbabilisticScorer { inner: ObjOps::heap_alloc(o), is_owned: true } }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::lightning::ln::msgs::DecodeError { inner: ObjOps::heap_alloc(e), is_owned: true } }).into() }; + local_res } mod time {