X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=lightning-c-bindings%2Fsrc%2Flightning%2Frouting%2Frouter.rs;h=afab2a071710e04c00e213162fdfda24639ce54c;hb=a21177846ed75d66f68a1603f768410f07a65791;hp=4e2a6f28472da96e4a9adf2fb899d8b4b8c0b0ea;hpb=1eaf50a3d9f777b462ff1817678473567a00eb75;p=ldk-c-bindings diff --git a/lightning-c-bindings/src/lightning/routing/router.rs b/lightning-c-bindings/src/lightning/routing/router.rs index 4e2a6f2..afab2a0 100644 --- a/lightning-c-bindings/src/lightning/routing/router.rs +++ b/lightning-c-bindings/src/lightning/routing/router.rs @@ -8,7 +8,7 @@ //! The top-level routing/network map tracking logic lives here. //! -//! You probably want to create a NetGraphMsgHandler and use that as your RoutingMessageHandler and then +//! You probably want to create a P2PGossipSync and use that as your RoutingMessageHandler and then //! interrogate it to get routes for your own payments. use alloc::str::FromStr; @@ -199,7 +199,7 @@ pub extern "C" fn RouteHop_eq(a: &RouteHop, b: &RouteHop) -> bool { } #[no_mangle] /// Serialize the RouteHop object into a byte array which can be read by RouteHop_read -pub extern "C" fn RouteHop_write(obj: &RouteHop) -> crate::c_types::derived::CVec_u8Z { +pub extern "C" fn RouteHop_write(obj: &crate::lightning::routing::router::RouteHop) -> crate::c_types::derived::CVec_u8Z { crate::c_types::serialize_obj(unsafe { &*obj }.get_native_ref()) } #[no_mangle] @@ -210,7 +210,7 @@ pub(crate) extern "C" fn RouteHop_write_void(obj: *const c_void) -> crate::c_typ /// Read a RouteHop from a byte array, created by RouteHop_write pub extern "C" fn RouteHop_read(ser: crate::c_types::u8slice) -> crate::c_types::derived::CResult_RouteHopDecodeErrorZ { 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::router::RouteHop { 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() }; + let mut local_res = match res { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::lightning::routing::router::RouteHop { inner: ObjOps::heap_alloc(o), is_owned: true } }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::lightning::ln::msgs::DecodeError::native_into(e) }).into() }; local_res } @@ -266,11 +266,10 @@ impl Route { } } /// The list of routes taken for a single (potentially-)multi-part payment. The pubkey of the -/// last RouteHop in each path must be the same. -/// Each entry represents a list of hops, NOT INCLUDING our own, where the last hop is the -/// destination. Thus, this must always be at least length one. While the maximum length of any -/// given path is variable, keeping the length of any path to less than 20 should currently -/// ensure it is viable. +/// last RouteHop in each path must be the same. Each entry represents a list of hops, NOT +/// INCLUDING our own, where the last hop is the destination. Thus, this must always be at +/// least length one. While the maximum length of any given path is variable, keeping the length +/// of any path less or equal to 19 should currently ensure it is viable. #[no_mangle] pub extern "C" fn Route_get_paths(this_ptr: &Route) -> crate::c_types::derived::CVec_CVec_RouteHopZZ { let mut inner_val = &mut this_ptr.get_native_mut_ref().paths; @@ -278,17 +277,16 @@ pub extern "C" fn Route_get_paths(this_ptr: &Route) -> crate::c_types::derived:: local_inner_val.into() } /// The list of routes taken for a single (potentially-)multi-part payment. The pubkey of the -/// last RouteHop in each path must be the same. -/// Each entry represents a list of hops, NOT INCLUDING our own, where the last hop is the -/// destination. Thus, this must always be at least length one. While the maximum length of any -/// given path is variable, keeping the length of any path to less than 20 should currently -/// ensure it is viable. +/// last RouteHop in each path must be the same. Each entry represents a list of hops, NOT +/// INCLUDING our own, where the last hop is the destination. Thus, this must always be at +/// least length one. While the maximum length of any given path is variable, keeping the length +/// of any path less or equal to 19 should currently ensure it is viable. #[no_mangle] pub extern "C" fn Route_set_paths(this_ptr: &mut Route, mut val: crate::c_types::derived::CVec_CVec_RouteHopZZ) { let mut local_val = Vec::new(); for mut item in val.into_rust().drain(..) { local_val.push( { let mut local_val_0 = Vec::new(); for mut item in item.into_rust().drain(..) { local_val_0.push( { *unsafe { Box::from_raw(item.take_inner()) } }); }; local_val_0 }); }; unsafe { &mut *ObjOps::untweak_ptr(this_ptr.inner) }.paths = local_val; } -/// The `payee` parameter passed to [`find_route`]. +/// The `payment_params` parameter passed to [`find_route`]. /// This is used by `ChannelManager` to track information which may be required for retries, /// provided back to you via [`Event::PaymentPathFailed`]. /// @@ -296,12 +294,12 @@ pub extern "C" fn Route_set_paths(this_ptr: &mut Route, mut val: crate::c_types: /// /// Note that the return value (or a relevant inner pointer) may be NULL or all-0s to represent None #[no_mangle] -pub extern "C" fn Route_get_payee(this_ptr: &Route) -> crate::lightning::routing::router::Payee { - let mut inner_val = &mut this_ptr.get_native_mut_ref().payee; - let mut local_inner_val = crate::lightning::routing::router::Payee { inner: unsafe { (if inner_val.is_none() { core::ptr::null() } else { ObjOps::nonnull_ptr_to_inner( { (inner_val.as_ref().unwrap()) }) } as *const lightning::routing::router::Payee<>) as *mut _ }, is_owned: false }; +pub extern "C" fn Route_get_payment_params(this_ptr: &Route) -> crate::lightning::routing::router::PaymentParameters { + let mut inner_val = &mut this_ptr.get_native_mut_ref().payment_params; + let mut local_inner_val = crate::lightning::routing::router::PaymentParameters { inner: unsafe { (if inner_val.is_none() { core::ptr::null() } else { ObjOps::nonnull_ptr_to_inner( { (inner_val.as_ref().unwrap()) }) } as *const lightning::routing::router::PaymentParameters<>) as *mut _ }, is_owned: false }; local_inner_val } -/// The `payee` parameter passed to [`find_route`]. +/// The `payment_params` parameter passed to [`find_route`]. /// This is used by `ChannelManager` to track information which may be required for retries, /// provided back to you via [`Event::PaymentPathFailed`]. /// @@ -309,19 +307,19 @@ pub extern "C" fn Route_get_payee(this_ptr: &Route) -> crate::lightning::routing /// /// Note that val (or a relevant inner pointer) may be NULL or all-0s to represent None #[no_mangle] -pub extern "C" fn Route_set_payee(this_ptr: &mut Route, mut val: crate::lightning::routing::router::Payee) { +pub extern "C" fn Route_set_payment_params(this_ptr: &mut Route, mut val: crate::lightning::routing::router::PaymentParameters) { let mut local_val = if val.inner.is_null() { None } else { Some( { *unsafe { Box::from_raw(val.take_inner()) } }) }; - unsafe { &mut *ObjOps::untweak_ptr(this_ptr.inner) }.payee = local_val; + unsafe { &mut *ObjOps::untweak_ptr(this_ptr.inner) }.payment_params = local_val; } /// Constructs a new Route given each field #[must_use] #[no_mangle] -pub extern "C" fn Route_new(mut paths_arg: crate::c_types::derived::CVec_CVec_RouteHopZZ, mut payee_arg: crate::lightning::routing::router::Payee) -> Route { +pub extern "C" fn Route_new(mut paths_arg: crate::c_types::derived::CVec_CVec_RouteHopZZ, mut payment_params_arg: crate::lightning::routing::router::PaymentParameters) -> Route { let mut local_paths_arg = Vec::new(); for mut item in paths_arg.into_rust().drain(..) { local_paths_arg.push( { let mut local_paths_arg_0 = Vec::new(); for mut item in item.into_rust().drain(..) { local_paths_arg_0.push( { *unsafe { Box::from_raw(item.take_inner()) } }); }; local_paths_arg_0 }); }; - let mut local_payee_arg = if payee_arg.inner.is_null() { None } else { Some( { *unsafe { Box::from_raw(payee_arg.take_inner()) } }) }; + let mut local_payment_params_arg = if payment_params_arg.inner.is_null() { None } else { Some( { *unsafe { Box::from_raw(payment_params_arg.take_inner()) } }) }; Route { inner: ObjOps::heap_alloc(nativeRoute { paths: local_paths_arg, - payee: local_payee_arg, + payment_params: local_payment_params_arg, }), is_owned: true } } impl Clone for Route { @@ -368,7 +366,7 @@ pub extern "C" fn Route_eq(a: &Route, b: &Route) -> bool { /// the amount passed to [`find_route`]'s `params.final_value_msat`. #[must_use] #[no_mangle] -pub extern "C" fn Route_get_total_fees(this_arg: &Route) -> u64 { +pub extern "C" fn Route_get_total_fees(this_arg: &crate::lightning::routing::router::Route) -> u64 { let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.get_total_fees(); ret } @@ -376,14 +374,14 @@ pub extern "C" fn Route_get_total_fees(this_arg: &Route) -> u64 { /// Returns the total amount paid on this [`Route`], excluding the fees. #[must_use] #[no_mangle] -pub extern "C" fn Route_get_total_amount(this_arg: &Route) -> u64 { +pub extern "C" fn Route_get_total_amount(this_arg: &crate::lightning::routing::router::Route) -> u64 { let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.get_total_amount(); ret } #[no_mangle] /// Serialize the Route object into a byte array which can be read by Route_read -pub extern "C" fn Route_write(obj: &Route) -> crate::c_types::derived::CVec_u8Z { +pub extern "C" fn Route_write(obj: &crate::lightning::routing::router::Route) -> crate::c_types::derived::CVec_u8Z { crate::c_types::serialize_obj(unsafe { &*obj }.get_native_ref()) } #[no_mangle] @@ -394,17 +392,17 @@ pub(crate) extern "C" fn Route_write_void(obj: *const c_void) -> crate::c_types: /// Read a Route from a byte array, created by Route_write pub extern "C" fn Route_read(ser: crate::c_types::u8slice) -> crate::c_types::derived::CResult_RouteDecodeErrorZ { 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::router::Route { 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() }; + let mut local_res = match res { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::lightning::routing::router::Route { inner: ObjOps::heap_alloc(o), is_owned: true } }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::lightning::ln::msgs::DecodeError::native_into(e) }).into() }; local_res } use lightning::routing::router::RouteParameters as nativeRouteParametersImport; pub(crate) type nativeRouteParameters = nativeRouteParametersImport; -/// Parameters needed to find a [`Route`] for paying a [`Payee`]. +/// Parameters needed to find a [`Route`]. /// -/// Passed to [`find_route`] and also provided in [`Event::PaymentPathFailed`] for retrying a failed -/// payment path. +/// Passed to [`find_route`] and [`build_route_from_hops`], but also provided in +/// [`Event::PaymentPathFailed`] for retrying a failed payment path. /// /// [`Event::PaymentPathFailed`]: crate::util::events::Event::PaymentPathFailed #[must_use] @@ -453,16 +451,16 @@ impl RouteParameters { ret } } -/// The recipient of the failed payment path. +/// The parameters of the failed payment path. #[no_mangle] -pub extern "C" fn RouteParameters_get_payee(this_ptr: &RouteParameters) -> crate::lightning::routing::router::Payee { - let mut inner_val = &mut this_ptr.get_native_mut_ref().payee; - crate::lightning::routing::router::Payee { inner: unsafe { ObjOps::nonnull_ptr_to_inner((inner_val as *const lightning::routing::router::Payee<>) as *mut _) }, is_owned: false } +pub extern "C" fn RouteParameters_get_payment_params(this_ptr: &RouteParameters) -> crate::lightning::routing::router::PaymentParameters { + let mut inner_val = &mut this_ptr.get_native_mut_ref().payment_params; + crate::lightning::routing::router::PaymentParameters { inner: unsafe { ObjOps::nonnull_ptr_to_inner((inner_val as *const lightning::routing::router::PaymentParameters<>) as *mut _) }, is_owned: false } } -/// The recipient of the failed payment path. +/// The parameters of the failed payment path. #[no_mangle] -pub extern "C" fn RouteParameters_set_payee(this_ptr: &mut RouteParameters, mut val: crate::lightning::routing::router::Payee) { - unsafe { &mut *ObjOps::untweak_ptr(this_ptr.inner) }.payee = *unsafe { Box::from_raw(val.take_inner()) }; +pub extern "C" fn RouteParameters_set_payment_params(this_ptr: &mut RouteParameters, mut val: crate::lightning::routing::router::PaymentParameters) { + unsafe { &mut *ObjOps::untweak_ptr(this_ptr.inner) }.payment_params = *unsafe { Box::from_raw(val.take_inner()) }; } /// The amount in msats sent on the failed payment path. #[no_mangle] @@ -489,9 +487,9 @@ pub extern "C" fn RouteParameters_set_final_cltv_expiry_delta(this_ptr: &mut Rou /// Constructs a new RouteParameters given each field #[must_use] #[no_mangle] -pub extern "C" fn RouteParameters_new(mut payee_arg: crate::lightning::routing::router::Payee, mut final_value_msat_arg: u64, mut final_cltv_expiry_delta_arg: u32) -> RouteParameters { +pub extern "C" fn RouteParameters_new(mut payment_params_arg: crate::lightning::routing::router::PaymentParameters, mut final_value_msat_arg: u64, mut final_cltv_expiry_delta_arg: u32) -> RouteParameters { RouteParameters { inner: ObjOps::heap_alloc(nativeRouteParameters { - payee: *unsafe { Box::from_raw(payee_arg.take_inner()) }, + payment_params: *unsafe { Box::from_raw(payment_params_arg.take_inner()) }, final_value_msat: final_value_msat_arg, final_cltv_expiry_delta: final_cltv_expiry_delta_arg, }), is_owned: true } @@ -517,7 +515,7 @@ pub extern "C" fn RouteParameters_clone(orig: &RouteParameters) -> RouteParamete } #[no_mangle] /// Serialize the RouteParameters object into a byte array which can be read by RouteParameters_read -pub extern "C" fn RouteParameters_write(obj: &RouteParameters) -> crate::c_types::derived::CVec_u8Z { +pub extern "C" fn RouteParameters_write(obj: &crate::lightning::routing::router::RouteParameters) -> crate::c_types::derived::CVec_u8Z { crate::c_types::serialize_obj(unsafe { &*obj }.get_native_ref()) } #[no_mangle] @@ -528,22 +526,30 @@ pub(crate) extern "C" fn RouteParameters_write_void(obj: *const c_void) -> crate /// Read a RouteParameters from a byte array, created by RouteParameters_write pub extern "C" fn RouteParameters_read(ser: crate::c_types::u8slice) -> crate::c_types::derived::CResult_RouteParametersDecodeErrorZ { 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::router::RouteParameters { 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() }; + let mut local_res = match res { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::lightning::routing::router::RouteParameters { inner: ObjOps::heap_alloc(o), is_owned: true } }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::lightning::ln::msgs::DecodeError::native_into(e) }).into() }; local_res } +/// Maximum total CTLV difference we allow for a full payment path. -use lightning::routing::router::Payee as nativePayeeImport; -pub(crate) type nativePayee = nativePayeeImport; +#[no_mangle] +pub static DEFAULT_MAX_TOTAL_CLTV_EXPIRY_DELTA: u32 = lightning::routing::router::DEFAULT_MAX_TOTAL_CLTV_EXPIRY_DELTA; +/// Maximum number of paths we allow an (MPP) payment to have. + +#[no_mangle] +pub static DEFAULT_MAX_PATH_COUNT: u8 = lightning::routing::router::DEFAULT_MAX_PATH_COUNT; + +use lightning::routing::router::PaymentParameters as nativePaymentParametersImport; +pub(crate) type nativePaymentParameters = nativePaymentParametersImport; /// The recipient of a payment. #[must_use] #[repr(C)] -pub struct Payee { +pub struct PaymentParameters { /// 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 nativePayee, + pub inner: *mut nativePaymentParameters, /// 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 @@ -551,31 +557,31 @@ pub struct Payee { pub is_owned: bool, } -impl Drop for Payee { +impl Drop for PaymentParameters { fn drop(&mut self) { - if self.is_owned && !<*mut nativePayee>::is_null(self.inner) { + if self.is_owned && !<*mut nativePaymentParameters>::is_null(self.inner) { let _ = unsafe { Box::from_raw(ObjOps::untweak_ptr(self.inner)) }; } } } -/// Frees any resources used by the Payee, if is_owned is set and inner is non-NULL. +/// Frees any resources used by the PaymentParameters, if is_owned is set and inner is non-NULL. #[no_mangle] -pub extern "C" fn Payee_free(this_obj: Payee) { } +pub extern "C" fn PaymentParameters_free(this_obj: PaymentParameters) { } #[allow(unused)] /// Used only if an object of this type is returned as a trait impl by a method -pub(crate) extern "C" fn Payee_free_void(this_ptr: *mut c_void) { - unsafe { let _ = Box::from_raw(this_ptr as *mut nativePayee); } +pub(crate) extern "C" fn PaymentParameters_free_void(this_ptr: *mut c_void) { + unsafe { let _ = Box::from_raw(this_ptr as *mut nativePaymentParameters); } } #[allow(unused)] -impl Payee { - pub(crate) fn get_native_ref(&self) -> &'static nativePayee { +impl PaymentParameters { + pub(crate) fn get_native_ref(&self) -> &'static nativePaymentParameters { unsafe { &*ObjOps::untweak_ptr(self.inner) } } - pub(crate) fn get_native_mut_ref(&self) -> &'static mut nativePayee { + pub(crate) fn get_native_mut_ref(&self) -> &'static mut nativePaymentParameters { 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 nativePayee { + pub(crate) fn take_inner(mut self) -> *mut nativePaymentParameters { assert!(self.is_owned); let ret = ObjOps::untweak_ptr(self.inner); self.inner = core::ptr::null_mut(); @@ -584,14 +590,14 @@ impl Payee { } /// The node id of the payee. #[no_mangle] -pub extern "C" fn Payee_get_pubkey(this_ptr: &Payee) -> crate::c_types::PublicKey { - let mut inner_val = &mut this_ptr.get_native_mut_ref().pubkey; +pub extern "C" fn PaymentParameters_get_payee_pubkey(this_ptr: &PaymentParameters) -> crate::c_types::PublicKey { + let mut inner_val = &mut this_ptr.get_native_mut_ref().payee_pubkey; crate::c_types::PublicKey::from_rust(&inner_val) } /// The node id of the payee. #[no_mangle] -pub extern "C" fn Payee_set_pubkey(this_ptr: &mut Payee, mut val: crate::c_types::PublicKey) { - unsafe { &mut *ObjOps::untweak_ptr(this_ptr.inner) }.pubkey = val.into_rust(); +pub extern "C" fn PaymentParameters_set_payee_pubkey(this_ptr: &mut PaymentParameters, mut val: crate::c_types::PublicKey) { + unsafe { &mut *ObjOps::untweak_ptr(this_ptr.inner) }.payee_pubkey = val.into_rust(); } /// Features supported by the payee. /// @@ -602,7 +608,7 @@ pub extern "C" fn Payee_set_pubkey(this_ptr: &mut Payee, mut val: crate::c_types /// /// Note that the return value (or a relevant inner pointer) may be NULL or all-0s to represent None #[no_mangle] -pub extern "C" fn Payee_get_features(this_ptr: &Payee) -> crate::lightning::ln::features::InvoiceFeatures { +pub extern "C" fn PaymentParameters_get_features(this_ptr: &PaymentParameters) -> crate::lightning::ln::features::InvoiceFeatures { let mut inner_val = &mut this_ptr.get_native_mut_ref().features; let mut local_inner_val = crate::lightning::ln::features::InvoiceFeatures { inner: unsafe { (if inner_val.is_none() { core::ptr::null() } else { ObjOps::nonnull_ptr_to_inner( { (inner_val.as_ref().unwrap()) }) } as *const lightning::ln::features::InvoiceFeatures<>) as *mut _ }, is_owned: false }; local_inner_val @@ -616,54 +622,139 @@ pub extern "C" fn Payee_get_features(this_ptr: &Payee) -> crate::lightning::ln:: /// /// Note that val (or a relevant inner pointer) may be NULL or all-0s to represent None #[no_mangle] -pub extern "C" fn Payee_set_features(this_ptr: &mut Payee, mut val: crate::lightning::ln::features::InvoiceFeatures) { +pub extern "C" fn PaymentParameters_set_features(this_ptr: &mut PaymentParameters, mut val: crate::lightning::ln::features::InvoiceFeatures) { let mut local_val = if val.inner.is_null() { None } else { Some( { *unsafe { Box::from_raw(val.take_inner()) } }) }; unsafe { &mut *ObjOps::untweak_ptr(this_ptr.inner) }.features = local_val; } /// Hints for routing to the payee, containing channels connecting the payee to public nodes. #[no_mangle] -pub extern "C" fn Payee_get_route_hints(this_ptr: &Payee) -> crate::c_types::derived::CVec_RouteHintZ { +pub extern "C" fn PaymentParameters_get_route_hints(this_ptr: &PaymentParameters) -> crate::c_types::derived::CVec_RouteHintZ { let mut inner_val = &mut this_ptr.get_native_mut_ref().route_hints; let mut local_inner_val = Vec::new(); for item in inner_val.iter() { local_inner_val.push( { crate::lightning::routing::router::RouteHint { inner: unsafe { ObjOps::nonnull_ptr_to_inner((item as *const lightning::routing::router::RouteHint<>) as *mut _) }, is_owned: false } }); }; local_inner_val.into() } /// Hints for routing to the payee, containing channels connecting the payee to public nodes. #[no_mangle] -pub extern "C" fn Payee_set_route_hints(this_ptr: &mut Payee, mut val: crate::c_types::derived::CVec_RouteHintZ) { +pub extern "C" fn PaymentParameters_set_route_hints(this_ptr: &mut PaymentParameters, mut val: crate::c_types::derived::CVec_RouteHintZ) { let mut local_val = Vec::new(); for mut item in val.into_rust().drain(..) { local_val.push( { *unsafe { Box::from_raw(item.take_inner()) } }); }; unsafe { &mut *ObjOps::untweak_ptr(this_ptr.inner) }.route_hints = local_val; } /// Expiration of a payment to the payee, in seconds relative to the UNIX epoch. #[no_mangle] -pub extern "C" fn Payee_get_expiry_time(this_ptr: &Payee) -> crate::c_types::derived::COption_u64Z { +pub extern "C" fn PaymentParameters_get_expiry_time(this_ptr: &PaymentParameters) -> crate::c_types::derived::COption_u64Z { let mut inner_val = &mut this_ptr.get_native_mut_ref().expiry_time; let mut local_inner_val = if inner_val.is_none() { crate::c_types::derived::COption_u64Z::None } else { crate::c_types::derived::COption_u64Z::Some( { inner_val.unwrap() }) }; local_inner_val } /// Expiration of a payment to the payee, in seconds relative to the UNIX epoch. #[no_mangle] -pub extern "C" fn Payee_set_expiry_time(this_ptr: &mut Payee, mut val: crate::c_types::derived::COption_u64Z) { +pub extern "C" fn PaymentParameters_set_expiry_time(this_ptr: &mut PaymentParameters, mut val: crate::c_types::derived::COption_u64Z) { let mut local_val = if val.is_some() { Some( { val.take() }) } else { None }; unsafe { &mut *ObjOps::untweak_ptr(this_ptr.inner) }.expiry_time = local_val; } -/// Constructs a new Payee given each field +/// The maximum total CLTV delta we accept for the route. +/// Defaults to [`DEFAULT_MAX_TOTAL_CLTV_EXPIRY_DELTA`]. +#[no_mangle] +pub extern "C" fn PaymentParameters_get_max_total_cltv_expiry_delta(this_ptr: &PaymentParameters) -> u32 { + let mut inner_val = &mut this_ptr.get_native_mut_ref().max_total_cltv_expiry_delta; + *inner_val +} +/// The maximum total CLTV delta we accept for the route. +/// Defaults to [`DEFAULT_MAX_TOTAL_CLTV_EXPIRY_DELTA`]. +#[no_mangle] +pub extern "C" fn PaymentParameters_set_max_total_cltv_expiry_delta(this_ptr: &mut PaymentParameters, mut val: u32) { + unsafe { &mut *ObjOps::untweak_ptr(this_ptr.inner) }.max_total_cltv_expiry_delta = val; +} +/// The maximum number of paths that may be used by (MPP) payments. +/// Defaults to [`DEFAULT_MAX_PATH_COUNT`]. +#[no_mangle] +pub extern "C" fn PaymentParameters_get_max_path_count(this_ptr: &PaymentParameters) -> u8 { + let mut inner_val = &mut this_ptr.get_native_mut_ref().max_path_count; + *inner_val +} +/// The maximum number of paths that may be used by (MPP) payments. +/// Defaults to [`DEFAULT_MAX_PATH_COUNT`]. +#[no_mangle] +pub extern "C" fn PaymentParameters_set_max_path_count(this_ptr: &mut PaymentParameters, mut val: u8) { + unsafe { &mut *ObjOps::untweak_ptr(this_ptr.inner) }.max_path_count = val; +} +/// Selects the maximum share of a channel's total capacity which will be sent over a channel, +/// as a power of 1/2. A higher value prefers to send the payment using more MPP parts whereas +/// a lower value prefers to send larger MPP parts, potentially saturating channels and +/// increasing failure probability for those paths. +/// +/// Note that this restriction will be relaxed during pathfinding after paths which meet this +/// restriction have been found. While paths which meet this criteria will be searched for, it +/// is ultimately up to the scorer to select them over other paths. +/// +/// A value of 0 will allow payments up to and including a channel's total announced usable +/// capacity, a value of one will only use up to half its capacity, two 1/4, etc. +/// +/// Default value: 2 +#[no_mangle] +pub extern "C" fn PaymentParameters_get_max_channel_saturation_power_of_half(this_ptr: &PaymentParameters) -> u8 { + let mut inner_val = &mut this_ptr.get_native_mut_ref().max_channel_saturation_power_of_half; + *inner_val +} +/// Selects the maximum share of a channel's total capacity which will be sent over a channel, +/// as a power of 1/2. A higher value prefers to send the payment using more MPP parts whereas +/// a lower value prefers to send larger MPP parts, potentially saturating channels and +/// increasing failure probability for those paths. +/// +/// Note that this restriction will be relaxed during pathfinding after paths which meet this +/// restriction have been found. While paths which meet this criteria will be searched for, it +/// is ultimately up to the scorer to select them over other paths. +/// +/// A value of 0 will allow payments up to and including a channel's total announced usable +/// capacity, a value of one will only use up to half its capacity, two 1/4, etc. +/// +/// Default value: 2 +#[no_mangle] +pub extern "C" fn PaymentParameters_set_max_channel_saturation_power_of_half(this_ptr: &mut PaymentParameters, mut val: u8) { + unsafe { &mut *ObjOps::untweak_ptr(this_ptr.inner) }.max_channel_saturation_power_of_half = val; +} +/// A list of SCIDs which this payment was previously attempted over and which caused the +/// payment to fail. Future attempts for the same payment shouldn't be relayed through any of +/// these SCIDs. +/// +/// Returns a copy of the field. +#[no_mangle] +pub extern "C" fn PaymentParameters_get_previously_failed_channels(this_ptr: &PaymentParameters) -> crate::c_types::derived::CVec_u64Z { + let mut inner_val = this_ptr.get_native_mut_ref().previously_failed_channels.clone(); + let mut local_inner_val = Vec::new(); for mut item in inner_val.drain(..) { local_inner_val.push( { item }); }; + local_inner_val.into() +} +/// A list of SCIDs which this payment was previously attempted over and which caused the +/// payment to fail. Future attempts for the same payment shouldn't be relayed through any of +/// these SCIDs. +#[no_mangle] +pub extern "C" fn PaymentParameters_set_previously_failed_channels(this_ptr: &mut PaymentParameters, mut val: crate::c_types::derived::CVec_u64Z) { + let mut local_val = Vec::new(); for mut item in val.into_rust().drain(..) { local_val.push( { item }); }; + unsafe { &mut *ObjOps::untweak_ptr(this_ptr.inner) }.previously_failed_channels = local_val; +} +/// Constructs a new PaymentParameters given each field #[must_use] #[no_mangle] -pub extern "C" fn Payee_new(mut pubkey_arg: crate::c_types::PublicKey, mut features_arg: crate::lightning::ln::features::InvoiceFeatures, mut route_hints_arg: crate::c_types::derived::CVec_RouteHintZ, mut expiry_time_arg: crate::c_types::derived::COption_u64Z) -> Payee { +pub extern "C" fn PaymentParameters_new(mut payee_pubkey_arg: crate::c_types::PublicKey, mut features_arg: crate::lightning::ln::features::InvoiceFeatures, mut route_hints_arg: crate::c_types::derived::CVec_RouteHintZ, mut expiry_time_arg: crate::c_types::derived::COption_u64Z, mut max_total_cltv_expiry_delta_arg: u32, mut max_path_count_arg: u8, mut max_channel_saturation_power_of_half_arg: u8, mut previously_failed_channels_arg: crate::c_types::derived::CVec_u64Z) -> PaymentParameters { let mut local_features_arg = if features_arg.inner.is_null() { None } else { Some( { *unsafe { Box::from_raw(features_arg.take_inner()) } }) }; let mut local_route_hints_arg = Vec::new(); for mut item in route_hints_arg.into_rust().drain(..) { local_route_hints_arg.push( { *unsafe { Box::from_raw(item.take_inner()) } }); }; let mut local_expiry_time_arg = if expiry_time_arg.is_some() { Some( { expiry_time_arg.take() }) } else { None }; - Payee { inner: ObjOps::heap_alloc(nativePayee { - pubkey: pubkey_arg.into_rust(), + let mut local_previously_failed_channels_arg = Vec::new(); for mut item in previously_failed_channels_arg.into_rust().drain(..) { local_previously_failed_channels_arg.push( { item }); }; + PaymentParameters { inner: ObjOps::heap_alloc(nativePaymentParameters { + payee_pubkey: payee_pubkey_arg.into_rust(), features: local_features_arg, route_hints: local_route_hints_arg, expiry_time: local_expiry_time_arg, + max_total_cltv_expiry_delta: max_total_cltv_expiry_delta_arg, + max_path_count: max_path_count_arg, + max_channel_saturation_power_of_half: max_channel_saturation_power_of_half_arg, + previously_failed_channels: local_previously_failed_channels_arg, }), is_owned: true } } -impl Clone for Payee { +impl Clone for PaymentParameters { fn clone(&self) -> Self { Self { - inner: if <*mut nativePayee>::is_null(self.inner) { core::ptr::null_mut() } else { + inner: if <*mut nativePaymentParameters>::is_null(self.inner) { core::ptr::null_mut() } else { ObjOps::heap_alloc(unsafe { &*ObjOps::untweak_ptr(self.inner) }.clone()) }, is_owned: true, } @@ -671,17 +762,17 @@ impl Clone for Payee { } #[allow(unused)] /// Used only if an object of this type is returned as a trait impl by a method -pub(crate) extern "C" fn Payee_clone_void(this_ptr: *const c_void) -> *mut c_void { - Box::into_raw(Box::new(unsafe { (*(this_ptr as *mut nativePayee)).clone() })) as *mut c_void +pub(crate) extern "C" fn PaymentParameters_clone_void(this_ptr: *const c_void) -> *mut c_void { + Box::into_raw(Box::new(unsafe { (*(this_ptr as *mut nativePaymentParameters)).clone() })) as *mut c_void } #[no_mangle] -/// Creates a copy of the Payee -pub extern "C" fn Payee_clone(orig: &Payee) -> Payee { +/// Creates a copy of the PaymentParameters +pub extern "C" fn PaymentParameters_clone(orig: &PaymentParameters) -> PaymentParameters { orig.clone() } -/// Checks if two Payees contain equal inner contents. +/// Checks if two PaymentParameterss contain equal inner contents. #[no_mangle] -pub extern "C" fn Payee_hash(o: &Payee) -> u64 { +pub extern "C" fn PaymentParameters_hash(o: &PaymentParameters) -> u64 { if o.inner.is_null() { return 0; } // Note that we'd love to use alloc::collections::hash_map::DefaultHasher but it's not in core #[allow(deprecated)] @@ -689,45 +780,45 @@ pub extern "C" fn Payee_hash(o: &Payee) -> u64 { core::hash::Hash::hash(o.get_native_ref(), &mut hasher); core::hash::Hasher::finish(&hasher) } -/// Checks if two Payees contain equal inner contents. +/// Checks if two PaymentParameterss contain equal inner contents. /// This ignores pointers and is_owned flags and looks at the values in fields. /// Two objects with NULL inner values will be considered "equal" here. #[no_mangle] -pub extern "C" fn Payee_eq(a: &Payee, b: &Payee) -> bool { +pub extern "C" fn PaymentParameters_eq(a: &PaymentParameters, b: &PaymentParameters) -> bool { if a.inner == b.inner { return true; } if a.inner.is_null() || b.inner.is_null() { return false; } if a.get_native_ref() == b.get_native_ref() { true } else { false } } #[no_mangle] -/// Serialize the Payee object into a byte array which can be read by Payee_read -pub extern "C" fn Payee_write(obj: &Payee) -> crate::c_types::derived::CVec_u8Z { +/// Serialize the PaymentParameters object into a byte array which can be read by PaymentParameters_read +pub extern "C" fn PaymentParameters_write(obj: &crate::lightning::routing::router::PaymentParameters) -> crate::c_types::derived::CVec_u8Z { crate::c_types::serialize_obj(unsafe { &*obj }.get_native_ref()) } #[no_mangle] -pub(crate) extern "C" fn Payee_write_void(obj: *const c_void) -> crate::c_types::derived::CVec_u8Z { - crate::c_types::serialize_obj(unsafe { &*(obj as *const nativePayee) }) +pub(crate) extern "C" fn PaymentParameters_write_void(obj: *const c_void) -> crate::c_types::derived::CVec_u8Z { + crate::c_types::serialize_obj(unsafe { &*(obj as *const nativePaymentParameters) }) } #[no_mangle] -/// Read a Payee from a byte array, created by Payee_write -pub extern "C" fn Payee_read(ser: crate::c_types::u8slice) -> crate::c_types::derived::CResult_PayeeDecodeErrorZ { - 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::router::Payee { 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() }; +/// Read a PaymentParameters from a byte array, created by PaymentParameters_write +pub extern "C" fn PaymentParameters_read(ser: crate::c_types::u8slice) -> crate::c_types::derived::CResult_PaymentParametersDecodeErrorZ { + 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::router::PaymentParameters { inner: ObjOps::heap_alloc(o), is_owned: true } }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::lightning::ln::msgs::DecodeError::native_into(e) }).into() }; local_res } /// Creates a payee with the node id of the given `pubkey`. #[must_use] #[no_mangle] -pub extern "C" fn Payee_from_node_id(mut pubkey: crate::c_types::PublicKey) -> Payee { - let mut ret = lightning::routing::router::Payee::from_node_id(pubkey.into_rust()); - Payee { inner: ObjOps::heap_alloc(ret), is_owned: true } +pub extern "C" fn PaymentParameters_from_node_id(mut payee_pubkey: crate::c_types::PublicKey) -> crate::lightning::routing::router::PaymentParameters { + let mut ret = lightning::routing::router::PaymentParameters::from_node_id(payee_pubkey.into_rust()); + crate::lightning::routing::router::PaymentParameters { inner: ObjOps::heap_alloc(ret), is_owned: true } } /// Creates a payee with the node id of the given `pubkey` to use for keysend payments. #[must_use] #[no_mangle] -pub extern "C" fn Payee_for_keysend(mut pubkey: crate::c_types::PublicKey) -> Payee { - let mut ret = lightning::routing::router::Payee::for_keysend(pubkey.into_rust()); - Payee { inner: ObjOps::heap_alloc(ret), is_owned: true } +pub extern "C" fn PaymentParameters_for_keysend(mut payee_pubkey: crate::c_types::PublicKey) -> crate::lightning::routing::router::PaymentParameters { + let mut ret = lightning::routing::router::PaymentParameters::for_keysend(payee_pubkey.into_rust()); + crate::lightning::routing::router::PaymentParameters { inner: ObjOps::heap_alloc(ret), is_owned: true } } @@ -841,7 +932,7 @@ pub extern "C" fn RouteHint_eq(a: &RouteHint, b: &RouteHint) -> bool { } #[no_mangle] /// Serialize the RouteHint object into a byte array which can be read by RouteHint_read -pub extern "C" fn RouteHint_write(obj: &RouteHint) -> crate::c_types::derived::CVec_u8Z { +pub extern "C" fn RouteHint_write(obj: &crate::lightning::routing::router::RouteHint) -> crate::c_types::derived::CVec_u8Z { crate::c_types::serialize_obj(unsafe { &*obj }.get_native_ref()) } #[no_mangle] @@ -852,7 +943,7 @@ pub(crate) extern "C" fn RouteHint_write_void(obj: *const c_void) -> crate::c_ty /// Read a RouteHint from a byte array, created by RouteHint_write pub extern "C" fn RouteHint_read(ser: crate::c_types::u8slice) -> crate::c_types::derived::CResult_RouteHintDecodeErrorZ { 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::router::RouteHint { 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() }; + let mut local_res = match res { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::lightning::routing::router::RouteHint { inner: ObjOps::heap_alloc(o), is_owned: true } }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::lightning::ln::msgs::DecodeError::native_into(e) }).into() }; local_res } @@ -930,13 +1021,13 @@ pub extern "C" fn RouteHintHop_set_short_channel_id(this_ptr: &mut RouteHintHop, } /// The fees which must be paid to use this channel #[no_mangle] -pub extern "C" fn RouteHintHop_get_fees(this_ptr: &RouteHintHop) -> crate::lightning::routing::network_graph::RoutingFees { +pub extern "C" fn RouteHintHop_get_fees(this_ptr: &RouteHintHop) -> crate::lightning::routing::gossip::RoutingFees { let mut inner_val = &mut this_ptr.get_native_mut_ref().fees; - crate::lightning::routing::network_graph::RoutingFees { inner: unsafe { ObjOps::nonnull_ptr_to_inner((inner_val as *const lightning::routing::network_graph::RoutingFees<>) as *mut _) }, is_owned: false } + crate::lightning::routing::gossip::RoutingFees { inner: unsafe { ObjOps::nonnull_ptr_to_inner((inner_val as *const lightning::routing::gossip::RoutingFees<>) as *mut _) }, is_owned: false } } /// The fees which must be paid to use this channel #[no_mangle] -pub extern "C" fn RouteHintHop_set_fees(this_ptr: &mut RouteHintHop, mut val: crate::lightning::routing::network_graph::RoutingFees) { +pub extern "C" fn RouteHintHop_set_fees(this_ptr: &mut RouteHintHop, mut val: crate::lightning::routing::gossip::RoutingFees) { unsafe { &mut *ObjOps::untweak_ptr(this_ptr.inner) }.fees = *unsafe { Box::from_raw(val.take_inner()) }; } /// The difference in CLTV values between this node and the next node. @@ -979,7 +1070,7 @@ pub extern "C" fn RouteHintHop_set_htlc_maximum_msat(this_ptr: &mut RouteHintHop /// Constructs a new RouteHintHop given each field #[must_use] #[no_mangle] -pub extern "C" fn RouteHintHop_new(mut src_node_id_arg: crate::c_types::PublicKey, mut short_channel_id_arg: u64, mut fees_arg: crate::lightning::routing::network_graph::RoutingFees, mut cltv_expiry_delta_arg: u16, mut htlc_minimum_msat_arg: crate::c_types::derived::COption_u64Z, mut htlc_maximum_msat_arg: crate::c_types::derived::COption_u64Z) -> RouteHintHop { +pub extern "C" fn RouteHintHop_new(mut src_node_id_arg: crate::c_types::PublicKey, mut short_channel_id_arg: u64, mut fees_arg: crate::lightning::routing::gossip::RoutingFees, mut cltv_expiry_delta_arg: u16, mut htlc_minimum_msat_arg: crate::c_types::derived::COption_u64Z, mut htlc_maximum_msat_arg: crate::c_types::derived::COption_u64Z) -> RouteHintHop { let mut local_htlc_minimum_msat_arg = if htlc_minimum_msat_arg.is_some() { Some( { htlc_minimum_msat_arg.take() }) } else { None }; let mut local_htlc_maximum_msat_arg = if htlc_maximum_msat_arg.is_some() { Some( { htlc_maximum_msat_arg.take() }) } else { None }; RouteHintHop { inner: ObjOps::heap_alloc(nativeRouteHintHop { @@ -1031,7 +1122,7 @@ pub extern "C" fn RouteHintHop_eq(a: &RouteHintHop, b: &RouteHintHop) -> bool { } #[no_mangle] /// Serialize the RouteHintHop object into a byte array which can be read by RouteHintHop_read -pub extern "C" fn RouteHintHop_write(obj: &RouteHintHop) -> crate::c_types::derived::CVec_u8Z { +pub extern "C" fn RouteHintHop_write(obj: &crate::lightning::routing::router::RouteHintHop) -> crate::c_types::derived::CVec_u8Z { crate::c_types::serialize_obj(unsafe { &*obj }.get_native_ref()) } #[no_mangle] @@ -1042,7 +1133,7 @@ pub(crate) extern "C" fn RouteHintHop_write_void(obj: *const c_void) -> crate::c /// Read a RouteHintHop from a byte array, created by RouteHintHop_write pub extern "C" fn RouteHintHop_read(ser: crate::c_types::u8slice) -> crate::c_types::derived::CResult_RouteHintHopDecodeErrorZ { 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::router::RouteHintHop { 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() }; + let mut local_res = match res { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::lightning::routing::router::RouteHintHop { inner: ObjOps::heap_alloc(o), is_owned: true } }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::lightning::ln::msgs::DecodeError::native_into(e) }).into() }; local_res } /// Finds a route from us (payer) to the given target node (payee). @@ -1053,8 +1144,8 @@ pub extern "C" fn RouteHintHop_read(ser: crate::c_types::u8slice) -> crate::c_ty /// Private routing paths between a public node and the target may be included in `params.payee`. /// /// If some channels aren't announced, it may be useful to fill in `first_hops` with the results -/// from [`ChannelManager::list_usable_channels`]. If it is filled in, the view of our local -/// channels from [`NetworkGraph`] will be ignored, and only those in `first_hops` will be used. +/// from [`ChannelManager::list_usable_channels`]. If it is filled in, the view of these channels +/// from `network_graph` will be ignored, and only those in `first_hops` will be used. /// /// The fees on channels from us to the next hop are ignored as they are assumed to all be equal. /// However, the enabled/disabled bit on such channels as well as the `htlc_minimum_msat` / @@ -1073,12 +1164,25 @@ pub extern "C" fn RouteHintHop_read(ser: crate::c_types::u8slice) -> crate::c_ty /// /// [`ChannelManager::list_usable_channels`]: crate::ln::channelmanager::ChannelManager::list_usable_channels /// [`Event::PaymentPathFailed`]: crate::util::events::Event::PaymentPathFailed +/// [`NetworkGraph`]: crate::routing::gossip::NetworkGraph /// /// Note that first_hops (or a relevant inner pointer) may be NULL or all-0s to represent None #[no_mangle] -pub extern "C" fn find_route(mut our_node_pubkey: crate::c_types::PublicKey, params: &crate::lightning::routing::router::RouteParameters, network: &crate::lightning::routing::network_graph::NetworkGraph, first_hops: *mut crate::c_types::derived::CVec_ChannelDetailsZ, mut logger: crate::lightning::util::logger::Logger, scorer: &crate::lightning::routing::scoring::Score) -> crate::c_types::derived::CResult_RouteLightningErrorZ { +pub extern "C" fn find_route(mut our_node_pubkey: crate::c_types::PublicKey, route_params: &crate::lightning::routing::router::RouteParameters, network_graph: &crate::lightning::routing::gossip::NetworkGraph, first_hops: *mut crate::c_types::derived::CVec_ChannelDetailsZ, mut logger: crate::lightning::util::logger::Logger, scorer: &crate::lightning::routing::scoring::Score, random_seed_bytes: *const [u8; 32]) -> crate::c_types::derived::CResult_RouteLightningErrorZ { let mut local_first_hops_base = if first_hops == core::ptr::null_mut() { None } else { Some( { let mut local_first_hops_0 = Vec::new(); for mut item in unsafe { &mut *first_hops }.as_slice().iter() { local_first_hops_0.push( { item.get_native_ref() }); }; local_first_hops_0 }) }; let mut local_first_hops = local_first_hops_base.as_ref().map(|a| &a[..]); - let mut ret = lightning::routing::router::find_route(&our_node_pubkey.into_rust(), params.get_native_ref(), network.get_native_ref(), local_first_hops, logger, scorer); + let mut ret = lightning::routing::router::find_route::(&our_node_pubkey.into_rust(), route_params.get_native_ref(), network_graph.get_native_ref(), local_first_hops, logger, scorer, unsafe { &*random_seed_bytes}); + let mut local_ret = match ret { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::lightning::routing::router::Route { inner: ObjOps::heap_alloc(o), is_owned: true } }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::lightning::ln::msgs::LightningError { inner: ObjOps::heap_alloc(e), is_owned: true } }).into() }; + local_ret +} + +/// Construct a route from us (payer) to the target node (payee) via the given hops (which should +/// exclude the payer, but include the payee). This may be useful, e.g., for probing the chosen path. +/// +/// Re-uses logic from `find_route`, so the restrictions described there also apply here. +#[no_mangle] +pub extern "C" fn build_route_from_hops(mut our_node_pubkey: crate::c_types::PublicKey, mut hops: crate::c_types::derived::CVec_PublicKeyZ, route_params: &crate::lightning::routing::router::RouteParameters, network_graph: &crate::lightning::routing::gossip::NetworkGraph, mut logger: crate::lightning::util::logger::Logger, random_seed_bytes: *const [u8; 32]) -> crate::c_types::derived::CResult_RouteLightningErrorZ { + let mut local_hops = Vec::new(); for mut item in hops.into_rust().drain(..) { local_hops.push( { item.into_rust() }); }; + let mut ret = lightning::routing::router::build_route_from_hops::(&our_node_pubkey.into_rust(), &local_hops[..], route_params.get_native_ref(), network_graph.get_native_ref(), logger, unsafe { &*random_seed_bytes}); let mut local_ret = match ret { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::lightning::routing::router::Route { inner: ObjOps::heap_alloc(o), is_owned: true } }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::lightning::ln::msgs::LightningError { inner: ObjOps::heap_alloc(e), is_owned: true } }).into() }; local_ret }