//! Structs and impls for receiving messages about the network and storing the topology live here.
-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};
pub mod network_graph;
pub mod router;
-pub mod scorer;
-/// An interface used to score payment channels for path finding.
-///
-///\tScoring is in terms of fees willing to be paid in order to avoid routing through a channel.
-#[repr(C)]
-pub struct Score {
- /// An opaque pointer which is passed to your function implementations as an argument.
- /// This has no meaning in the LDK, and can be NULL or any other value.
- pub this_arg: *mut c_void,
- /// Returns the fee in msats willing to be paid to avoid routing through the given channel
- /// in the direction from `source` to `target`.
- #[must_use]
- pub channel_penalty_msat: extern "C" fn (this_arg: *const c_void, short_channel_id: u64, source: &crate::lightning::routing::network_graph::NodeId, target: &crate::lightning::routing::network_graph::NodeId) -> u64,
- /// Handles updating channel penalties after failing to route through a channel.
- pub payment_path_failed: extern "C" fn (this_arg: *mut c_void, path: crate::c_types::derived::CVec_RouteHopZ, short_channel_id: u64),
- /// Serialize the object into a byte array
- pub write: extern "C" fn (this_arg: *const c_void) -> crate::c_types::derived::CVec_u8Z,
- /// Frees any resources associated with this object given its this_arg pointer.
- /// Does not need to free the outer struct containing function pointers and may be NULL is no resources need to be freed.
- pub free: Option<extern "C" fn(this_arg: *mut c_void)>,
-}
-unsafe impl Send for Score {}
-unsafe impl Sync for Score {}
-#[no_mangle]
-pub(crate) extern "C" fn Score_clone_fields(orig: &Score) -> Score {
- Score {
- this_arg: orig.this_arg,
- channel_penalty_msat: Clone::clone(&orig.channel_penalty_msat),
- payment_path_failed: Clone::clone(&orig.payment_path_failed),
- write: Clone::clone(&orig.write),
- free: Clone::clone(&orig.free),
- }
-}
-impl lightning::util::ser::Writeable for Score {
- fn write<W: lightning::util::ser::Writer>(&self, w: &mut W) -> Result<(), ::std::io::Error> {
- let vec = (self.write)(self.this_arg);
- w.write_all(vec.as_slice())
- }
-}
-
-use lightning::routing::Score as rustScore;
-impl rustScore for Score {
- fn channel_penalty_msat(&self, mut short_channel_id: u64, mut source: &lightning::routing::network_graph::NodeId, mut target: &lightning::routing::network_graph::NodeId) -> u64 {
- let mut ret = (self.channel_penalty_msat)(self.this_arg, short_channel_id, &crate::lightning::routing::network_graph::NodeId { inner: unsafe { ObjOps::nonnull_ptr_to_inner((source as *const lightning::routing::network_graph::NodeId<>) as *mut _) }, is_owned: false }, &crate::lightning::routing::network_graph::NodeId { inner: unsafe { ObjOps::nonnull_ptr_to_inner((target as *const lightning::routing::network_graph::NodeId<>) as *mut _) }, is_owned: false });
- ret
- }
- fn payment_path_failed(&mut self, mut path: &[&lightning::routing::router::RouteHop], mut short_channel_id: u64) {
- let mut local_path = Vec::new(); for item in path.iter() { local_path.push( { crate::lightning::routing::router::RouteHop { inner: unsafe { ObjOps::nonnull_ptr_to_inner(((*item) as *const lightning::routing::router::RouteHop<>) as *mut _) }, is_owned: false } }); };
- (self.payment_path_failed)(self.this_arg, local_path.into(), short_channel_id)
- }
-}
-
-// We're essentially a pointer already, or at least a set of pointers, so allow us to be used
-// directly as a Deref trait in higher-level structs:
-impl std::ops::Deref for Score {
- type Target = Self;
- fn deref(&self) -> &Self {
- self
- }
-}
-/// Calls the free function if one is set
-#[no_mangle]
-pub extern "C" fn Score_free(this_ptr: Score) { }
-impl Drop for Score {
- fn drop(&mut self) {
- if let Some(f) = self.free {
- f(self.this_arg);
- }
- }
-}
-
-use lightning::routing::LockableScore as nativeLockableScoreImport;
-pub(crate) type nativeLockableScore = nativeLockableScoreImport<crate::lightning::routing::Score>;
-
-/// A scorer that is accessed under a lock.
-///
-/// Needed so that calls to [`Score::channel_penalty_msat`] in [`find_route`] can be made while
-/// having shared ownership of a scorer but without requiring internal locking in [`Score`]
-/// implementations. Internal locking would be detrimental to route finding performance and could
-/// result in [`Score::channel_penalty_msat`] returning a different value for the same channel.
-///
-/// [`find_route`]: crate::routing::router::find_route
-#[must_use]
-#[repr(C)]
-pub struct LockableScore {
- /// 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 nativeLockableScore,
- /// 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 LockableScore {
- fn drop(&mut self) {
- if self.is_owned && !<*mut nativeLockableScore>::is_null(self.inner) {
- let _ = unsafe { Box::from_raw(ObjOps::untweak_ptr(self.inner)) };
- }
- }
-}
-/// Frees any resources used by the LockableScore, if is_owned is set and inner is non-NULL.
-#[no_mangle]
-pub extern "C" fn LockableScore_free(this_obj: LockableScore) { }
-#[allow(unused)]
-/// Used only if an object of this type is returned as a trait impl by a method
-pub(crate) extern "C" fn LockableScore_free_void(this_ptr: *mut c_void) {
- unsafe { let _ = Box::from_raw(this_ptr as *mut nativeLockableScore); }
-}
-#[allow(unused)]
-impl LockableScore {
- pub(crate) fn get_native_ref(&self) -> &'static nativeLockableScore {
- unsafe { &*ObjOps::untweak_ptr(self.inner) }
- }
- pub(crate) fn get_native_mut_ref(&self) -> &'static mut nativeLockableScore {
- 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 nativeLockableScore {
- assert!(self.is_owned);
- let ret = ObjOps::untweak_ptr(self.inner);
- self.inner = std::ptr::null_mut();
- ret
- }
-}
-/// Constructs a new LockableScore from a Score
-#[must_use]
-#[no_mangle]
-pub extern "C" fn LockableScore_new(mut score: crate::lightning::routing::Score) -> LockableScore {
- let mut ret = lightning::routing::LockableScore::new(score);
- LockableScore { inner: ObjOps::heap_alloc(ret), is_owned: true }
-}
-
-#[no_mangle]
-/// Serialize the LockableScore object into a byte array which can be read by LockableScore_read
-pub extern "C" fn LockableScore_write(obj: &LockableScore) -> crate::c_types::derived::CVec_u8Z {
- crate::c_types::serialize_obj(unsafe { &*obj }.get_native_ref())
-}
-#[no_mangle]
-pub(crate) extern "C" fn LockableScore_write_void(obj: *const c_void) -> crate::c_types::derived::CVec_u8Z {
- crate::c_types::serialize_obj(unsafe { &*(obj as *const nativeLockableScore) })
-}
+pub mod scoring;
projects / ldk-c-bindings / blobdiff