X-Git-Url: http://git.bitcoin.ninja/index.cgi?p=ldk-c-bindings;a=blobdiff_plain;f=lightning-c-bindings%2Fsrc%2Flightning_invoice%2Futils.rs;h=79281aa889b55f9d84d028e61c832b284d773118;hp=281da5e14556402af5cccb631983a234c72129d3;hb=1eaf50a3d9f777b462ff1817678473567a00eb75;hpb=696382c9fbc707aa5226f73910625136adb724fd diff --git a/lightning-c-bindings/src/lightning_invoice/utils.rs b/lightning-c-bindings/src/lightning_invoice/utils.rs index 281da5e..79281aa 100644 --- a/lightning-c-bindings/src/lightning_invoice/utils.rs +++ b/lightning-c-bindings/src/lightning_invoice/utils.rs @@ -8,10 +8,13 @@ //! Convenient utilities to create an invoice. -use std::str::FromStr; -use std::ffi::c_void; +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}; /// Utility to construct an invoice. Generally, unless you want to do something like a custom /// cltv_expiry, this is what you should be using to create an invoice. The reason being, this @@ -26,3 +29,154 @@ pub extern "C" fn create_invoice_from_channelmanager(channelmanager: &crate::lig local_ret } + +use lightning_invoice::utils::DefaultRouter as nativeDefaultRouterImport; +pub(crate) type nativeDefaultRouter = nativeDefaultRouterImport<&'static lightning::routing::network_graph::NetworkGraph, crate::lightning::util::logger::Logger>; + +/// A [`Router`] implemented using [`find_route`]. +#[must_use] +#[repr(C)] +pub struct DefaultRouter { + /// 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 nativeDefaultRouter, + /// 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 DefaultRouter { + fn drop(&mut self) { + if self.is_owned && !<*mut nativeDefaultRouter>::is_null(self.inner) { + let _ = unsafe { Box::from_raw(ObjOps::untweak_ptr(self.inner)) }; + } + } +} +/// Frees any resources used by the DefaultRouter, if is_owned is set and inner is non-NULL. +#[no_mangle] +pub extern "C" fn DefaultRouter_free(this_obj: DefaultRouter) { } +#[allow(unused)] +/// Used only if an object of this type is returned as a trait impl by a method +pub(crate) extern "C" fn DefaultRouter_free_void(this_ptr: *mut c_void) { + unsafe { let _ = Box::from_raw(this_ptr as *mut nativeDefaultRouter); } +} +#[allow(unused)] +impl DefaultRouter { + pub(crate) fn get_native_ref(&self) -> &'static nativeDefaultRouter { + unsafe { &*ObjOps::untweak_ptr(self.inner) } + } + pub(crate) fn get_native_mut_ref(&self) -> &'static mut nativeDefaultRouter { + 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 nativeDefaultRouter { + assert!(self.is_owned); + let ret = ObjOps::untweak_ptr(self.inner); + self.inner = core::ptr::null_mut(); + ret + } +} +/// Creates a new router using the given [`NetworkGraph`] and [`Logger`]. +#[must_use] +#[no_mangle] +pub extern "C" fn DefaultRouter_new(network_graph: &crate::lightning::routing::network_graph::NetworkGraph, mut logger: crate::lightning::util::logger::Logger) -> DefaultRouter { + let mut ret = lightning_invoice::utils::DefaultRouter::new(network_graph.get_native_ref(), logger); + DefaultRouter { inner: ObjOps::heap_alloc(ret), is_owned: true } +} + +impl From for crate::lightning_invoice::payment::Router { + fn from(obj: nativeDefaultRouter) -> Self { + let mut rust_obj = DefaultRouter { inner: ObjOps::heap_alloc(obj), is_owned: true }; + let mut ret = DefaultRouter_as_Router(&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(DefaultRouter_free_void); + ret + } +} +/// Constructs a new Router which calls the relevant methods on this_arg. +/// This copies the `inner` pointer in this_arg and thus the returned Router must be freed before this_arg is +#[no_mangle] +pub extern "C" fn DefaultRouter_as_Router(this_arg: &DefaultRouter) -> crate::lightning_invoice::payment::Router { + crate::lightning_invoice::payment::Router { + this_arg: unsafe { ObjOps::untweak_ptr((*this_arg).inner) as *mut c_void }, + free: None, + find_route: DefaultRouter_Router_find_route, + } +} + +#[must_use] +extern "C" fn DefaultRouter_Router_find_route(this_arg: *const c_void, mut payer: crate::c_types::PublicKey, params: &crate::lightning::routing::router::RouteParameters, _payment_hash: *const [u8; 32], first_hops: *mut crate::c_types::derived::CVec_ChannelDetailsZ, scorer: &crate::lightning::routing::scoring::Score) -> 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 = >::find_route(unsafe { &mut *(this_arg as *mut nativeDefaultRouter) }, &payer.into_rust(), params.get_native_ref(), &::lightning::ln::PaymentHash(unsafe { *_payment_hash }), local_first_hops, scorer); + 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 +} + +use crate::lightning::ln::channelmanager::nativeChannelManager as nativeChannelManager; +use crate::lightning::ln::channelmanager::ChannelManager; +use crate::lightning::ln::channelmanager::ChannelManager_free_void; +impl From for crate::lightning_invoice::payment::Payer { + fn from(obj: nativeChannelManager) -> Self { + let mut rust_obj = ChannelManager { inner: ObjOps::heap_alloc(obj), is_owned: true }; + let mut ret = ChannelManager_as_Payer(&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(ChannelManager_free_void); + ret + } +} +/// Constructs a new Payer which calls the relevant methods on this_arg. +/// This copies the `inner` pointer in this_arg and thus the returned Payer must be freed before this_arg is +#[no_mangle] +pub extern "C" fn ChannelManager_as_Payer(this_arg: &ChannelManager) -> crate::lightning_invoice::payment::Payer { + crate::lightning_invoice::payment::Payer { + this_arg: unsafe { ObjOps::untweak_ptr((*this_arg).inner) as *mut c_void }, + free: None, + node_id: ChannelManager_Payer_node_id, + first_hops: ChannelManager_Payer_first_hops, + send_payment: ChannelManager_Payer_send_payment, + send_spontaneous_payment: ChannelManager_Payer_send_spontaneous_payment, + retry_payment: ChannelManager_Payer_retry_payment, + abandon_payment: ChannelManager_Payer_abandon_payment, + } +} + +#[must_use] +extern "C" fn ChannelManager_Payer_node_id(this_arg: *const c_void) -> crate::c_types::PublicKey { + let mut ret = >::node_id(unsafe { &mut *(this_arg as *mut nativeChannelManager) }, ); + crate::c_types::PublicKey::from_rust(&ret) +} +#[must_use] +extern "C" fn ChannelManager_Payer_first_hops(this_arg: *const c_void) -> crate::c_types::derived::CVec_ChannelDetailsZ { + let mut ret = >::first_hops(unsafe { &mut *(this_arg as *mut nativeChannelManager) }, ); + let mut local_ret = Vec::new(); for mut item in ret.drain(..) { local_ret.push( { crate::lightning::ln::channelmanager::ChannelDetails { inner: ObjOps::heap_alloc(item), is_owned: true } }); }; + local_ret.into() +} +#[must_use] +extern "C" fn ChannelManager_Payer_send_payment(this_arg: *const c_void, route: &crate::lightning::routing::router::Route, mut payment_hash: crate::c_types::ThirtyTwoBytes, mut payment_secret: crate::c_types::ThirtyTwoBytes) -> crate::c_types::derived::CResult_PaymentIdPaymentSendFailureZ { + let mut local_payment_secret = if payment_secret.data == [0; 32] { None } else { Some( { ::lightning::ln::PaymentSecret(payment_secret.data) }) }; + let mut ret = >::send_payment(unsafe { &mut *(this_arg as *mut nativeChannelManager) }, route.get_native_ref(), ::lightning::ln::PaymentHash(payment_hash.data), &local_payment_secret); + let mut local_ret = match ret { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::c_types::ThirtyTwoBytes { data: o.0 } }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::lightning::ln::channelmanager::PaymentSendFailure::native_into(e) }).into() }; + local_ret +} +#[must_use] +extern "C" fn ChannelManager_Payer_send_spontaneous_payment(this_arg: *const c_void, route: &crate::lightning::routing::router::Route, mut payment_preimage: crate::c_types::ThirtyTwoBytes) -> crate::c_types::derived::CResult_PaymentIdPaymentSendFailureZ { + let mut ret = >::send_spontaneous_payment(unsafe { &mut *(this_arg as *mut nativeChannelManager) }, route.get_native_ref(), ::lightning::ln::PaymentPreimage(payment_preimage.data)); + let mut local_ret = match ret { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::c_types::ThirtyTwoBytes { data: o.0 } }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::lightning::ln::channelmanager::PaymentSendFailure::native_into(e) }).into() }; + local_ret +} +#[must_use] +extern "C" fn ChannelManager_Payer_retry_payment(this_arg: *const c_void, route: &crate::lightning::routing::router::Route, mut payment_id: crate::c_types::ThirtyTwoBytes) -> crate::c_types::derived::CResult_NonePaymentSendFailureZ { + let mut ret = >::retry_payment(unsafe { &mut *(this_arg as *mut nativeChannelManager) }, route.get_native_ref(), ::lightning::ln::channelmanager::PaymentId(payment_id.data)); + let mut local_ret = match ret { Ok(mut o) => crate::c_types::CResultTempl::ok( { () /*o*/ }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::lightning::ln::channelmanager::PaymentSendFailure::native_into(e) }).into() }; + local_ret +} +extern "C" fn ChannelManager_Payer_abandon_payment(this_arg: *const c_void, mut payment_id: crate::c_types::ThirtyTwoBytes) { + >::abandon_payment(unsafe { &mut *(this_arg as *mut nativeChannelManager) }, ::lightning::ln::channelmanager::PaymentId(payment_id.data)) +} +