--- /dev/null
+//! The logic to monitor for on-chain transactions and create the relevant claim responses lives
+//! here.
+//!
+//! ChannelMonitor objects are generated by ChannelManager in response to relevant
+//! messages/actions, and MUST be persisted to disk (and, preferably, remotely) before progress can
+//! be made in responding to certain messages, see ManyChannelMonitor for more.
+//!
+//! Note that ChannelMonitors are an important part of the lightning trust model and a copy of the
+//! latest ChannelMonitor must always be actively monitoring for chain updates (and no out-of-date
+//! ChannelMonitors should do so). Thus, if you're building rust-lightning into an HSM or other
+//! security-domain-separated system design, you should consider having multiple paths for
+//! ChannelMonitors to get out of the HSM and onto monitoring devices.
+
+use std::ffi::c_void;
+use bitcoin::hashes::Hash;
+use crate::c_types::*;
+
+
+use lightning::ln::channelmonitor::ChannelMonitorUpdate as nativeChannelMonitorUpdateImport;
+type nativeChannelMonitorUpdate = nativeChannelMonitorUpdateImport;
+
+/// An update generated by the underlying Channel itself which contains some new information the
+/// ChannelMonitor should be made aware of.
+#[must_use]
+#[repr(C)]
+pub struct ChannelMonitorUpdate {
+ /// Nearly everyhwere, 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 nativeChannelMonitorUpdate,
+ pub is_owned: bool,
+}
+
+impl Drop for ChannelMonitorUpdate {
+ fn drop(&mut self) {
+ if self.is_owned && !self.inner.is_null() {
+ let _ = unsafe { Box::from_raw(self.inner) };
+ }
+ }
+}
+#[no_mangle]
+pub extern "C" fn ChannelMonitorUpdate_free(this_ptr: ChannelMonitorUpdate) { }
+#[allow(unused)]
+/// Used only if an object of this type is returned as a trait impl by a method
+extern "C" fn ChannelMonitorUpdate_free_void(this_ptr: *mut c_void) {
+ unsafe { let _ = Box::from_raw(this_ptr as *mut nativeChannelMonitorUpdate); }
+}
+#[allow(unused)]
+/// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy
+impl ChannelMonitorUpdate {
+ pub(crate) fn take_ptr(mut self) -> *mut nativeChannelMonitorUpdate {
+ assert!(self.is_owned);
+ let ret = self.inner;
+ self.inner = std::ptr::null_mut();
+ ret
+ }
+}
+impl Clone for ChannelMonitorUpdate {
+ fn clone(&self) -> Self {
+ Self {
+ inner: Box::into_raw(Box::new(unsafe { &*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 ChannelMonitorUpdate_clone_void(this_ptr: *const c_void) -> *mut c_void {
+ Box::into_raw(Box::new(unsafe { (*(this_ptr as *mut nativeChannelMonitorUpdate)).clone() })) as *mut c_void
+}
+/// The sequence number of this update. Updates *must* be replayed in-order according to this
+/// sequence number (and updates may panic if they are not). The update_id values are strictly
+/// increasing and increase by one for each new update.
+///
+/// This sequence number is also used to track up to which points updates which returned
+/// ChannelMonitorUpdateErr::TemporaryFailure have been applied to all copies of a given
+/// ChannelMonitor when ChannelManager::channel_monitor_updated is called.
+#[no_mangle]
+pub extern "C" fn ChannelMonitorUpdate_get_update_id(this_ptr: &ChannelMonitorUpdate) -> u64 {
+ let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.update_id;
+ (*inner_val)
+}
+/// The sequence number of this update. Updates *must* be replayed in-order according to this
+/// sequence number (and updates may panic if they are not). The update_id values are strictly
+/// increasing and increase by one for each new update.
+///
+/// This sequence number is also used to track up to which points updates which returned
+/// ChannelMonitorUpdateErr::TemporaryFailure have been applied to all copies of a given
+/// ChannelMonitor when ChannelManager::channel_monitor_updated is called.
+#[no_mangle]
+pub extern "C" fn ChannelMonitorUpdate_set_update_id(this_ptr: &mut ChannelMonitorUpdate, mut val: u64) {
+ unsafe { &mut *this_ptr.inner }.update_id = val;
+}
+#[no_mangle]
+pub extern "C" fn ChannelMonitorUpdate_write(obj: *const ChannelMonitorUpdate) -> crate::c_types::derived::CVec_u8Z {
+ crate::c_types::serialize_obj(unsafe { &(*(*obj).inner) })
+}
+#[no_mangle]
+pub extern "C" fn ChannelMonitorUpdate_read(ser: crate::c_types::u8slice) -> ChannelMonitorUpdate {
+ if let Ok(res) = crate::c_types::deserialize_obj(ser) {
+ ChannelMonitorUpdate { inner: Box::into_raw(Box::new(res)), is_owned: true }
+ } else {
+ ChannelMonitorUpdate { inner: std::ptr::null_mut(), is_owned: true }
+ }
+}
+/// An error enum representing a failure to persist a channel monitor update.
+#[must_use]
+#[derive(Clone)]
+#[repr(C)]
+pub enum ChannelMonitorUpdateErr {
+ /// Used to indicate a temporary failure (eg connection to a watchtower or remote backup of
+ /// our state failed, but is expected to succeed at some point in the future).
+ ///
+ /// Such a failure will \"freeze\" a channel, preventing us from revoking old states or
+ /// submitting new commitment transactions to the remote party. Once the update(s) which failed
+ /// have been successfully applied, ChannelManager::channel_monitor_updated can be used to
+ /// restore the channel to an operational state.
+ ///
+ /// Note that a given ChannelManager will *never* re-generate a given ChannelMonitorUpdate. If
+ /// you return a TemporaryFailure you must ensure that it is written to disk safely before
+ /// writing out the latest ChannelManager state.
+ ///
+ /// Even when a channel has been \"frozen\" updates to the ChannelMonitor can continue to occur
+ /// (eg if an inbound HTLC which we forwarded was claimed upstream resulting in us attempting
+ /// to claim it on this channel) and those updates must be applied wherever they can be. At
+ /// least one such updated ChannelMonitor must be persisted otherwise PermanentFailure should
+ /// be returned to get things on-chain ASAP using only the in-memory copy. Obviously updates to
+ /// the channel which would invalidate previous ChannelMonitors are not made when a channel has
+ /// been \"frozen\".
+ ///
+ /// Note that even if updates made after TemporaryFailure succeed you must still call
+ /// channel_monitor_updated to ensure you have the latest monitor and re-enable normal channel
+ /// operation.
+ ///
+ /// Note that the update being processed here will not be replayed for you when you call
+ /// ChannelManager::channel_monitor_updated, so you must store the update itself along
+ /// with the persisted ChannelMonitor on your own local disk prior to returning a
+ /// TemporaryFailure. You may, of course, employ a journaling approach, storing only the
+ /// ChannelMonitorUpdate on disk without updating the monitor itself, replaying the journal at
+ /// reload-time.
+ ///
+ /// For deployments where a copy of ChannelMonitors and other local state are backed up in a
+ /// remote location (with local copies persisted immediately), it is anticipated that all
+ /// updates will return TemporaryFailure until the remote copies could be updated.
+ TemporaryFailure,
+ /// Used to indicate no further channel monitor updates will be allowed (eg we've moved on to a
+ /// different watchtower and cannot update with all watchtowers that were previously informed
+ /// of this channel). This will force-close the channel in question (which will generate one
+ /// final ChannelMonitorUpdate which must be delivered to at least one ChannelMonitor copy).
+ ///
+ /// Should also be used to indicate a failure to update the local persisted copy of the channel
+ /// monitor.
+ PermanentFailure,
+}
+use lightning::ln::channelmonitor::ChannelMonitorUpdateErr as nativeChannelMonitorUpdateErr;
+impl ChannelMonitorUpdateErr {
+ #[allow(unused)]
+ pub(crate) fn to_native(&self) -> nativeChannelMonitorUpdateErr {
+ match self {
+ ChannelMonitorUpdateErr::TemporaryFailure => nativeChannelMonitorUpdateErr::TemporaryFailure,
+ ChannelMonitorUpdateErr::PermanentFailure => nativeChannelMonitorUpdateErr::PermanentFailure,
+ }
+ }
+ #[allow(unused)]
+ pub(crate) fn into_native(self) -> nativeChannelMonitorUpdateErr {
+ match self {
+ ChannelMonitorUpdateErr::TemporaryFailure => nativeChannelMonitorUpdateErr::TemporaryFailure,
+ ChannelMonitorUpdateErr::PermanentFailure => nativeChannelMonitorUpdateErr::PermanentFailure,
+ }
+ }
+ #[allow(unused)]
+ pub(crate) fn from_native(native: &nativeChannelMonitorUpdateErr) -> Self {
+ match native {
+ nativeChannelMonitorUpdateErr::TemporaryFailure => ChannelMonitorUpdateErr::TemporaryFailure,
+ nativeChannelMonitorUpdateErr::PermanentFailure => ChannelMonitorUpdateErr::PermanentFailure,
+ }
+ }
+ #[allow(unused)]
+ pub(crate) fn native_into(native: nativeChannelMonitorUpdateErr) -> Self {
+ match native {
+ nativeChannelMonitorUpdateErr::TemporaryFailure => ChannelMonitorUpdateErr::TemporaryFailure,
+ nativeChannelMonitorUpdateErr::PermanentFailure => ChannelMonitorUpdateErr::PermanentFailure,
+ }
+ }
+}
+
+use lightning::ln::channelmonitor::MonitorUpdateError as nativeMonitorUpdateErrorImport;
+type nativeMonitorUpdateError = nativeMonitorUpdateErrorImport;
+
+/// General Err type for ChannelMonitor actions. Generally, this implies that the data provided is
+/// inconsistent with the ChannelMonitor being called. eg for ChannelMonitor::update_monitor this
+/// means you tried to update a monitor for a different channel or the ChannelMonitorUpdate was
+/// corrupted.
+/// Contains a human-readable error message.
+#[must_use]
+#[repr(C)]
+pub struct MonitorUpdateError {
+ /// Nearly everyhwere, 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 nativeMonitorUpdateError,
+ pub is_owned: bool,
+}
+
+impl Drop for MonitorUpdateError {
+ fn drop(&mut self) {
+ if self.is_owned && !self.inner.is_null() {
+ let _ = unsafe { Box::from_raw(self.inner) };
+ }
+ }
+}
+#[no_mangle]
+pub extern "C" fn MonitorUpdateError_free(this_ptr: MonitorUpdateError) { }
+#[allow(unused)]
+/// Used only if an object of this type is returned as a trait impl by a method
+extern "C" fn MonitorUpdateError_free_void(this_ptr: *mut c_void) {
+ unsafe { let _ = Box::from_raw(this_ptr as *mut nativeMonitorUpdateError); }
+}
+#[allow(unused)]
+/// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy
+impl MonitorUpdateError {
+ pub(crate) fn take_ptr(mut self) -> *mut nativeMonitorUpdateError {
+ assert!(self.is_owned);
+ let ret = self.inner;
+ self.inner = std::ptr::null_mut();
+ ret
+ }
+}
+
+use lightning::ln::channelmonitor::MonitorEvent as nativeMonitorEventImport;
+type nativeMonitorEvent = nativeMonitorEventImport;
+
+/// An event to be processed by the ChannelManager.
+#[must_use]
+#[repr(C)]
+pub struct MonitorEvent {
+ /// Nearly everyhwere, 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 nativeMonitorEvent,
+ pub is_owned: bool,
+}
+
+impl Drop for MonitorEvent {
+ fn drop(&mut self) {
+ if self.is_owned && !self.inner.is_null() {
+ let _ = unsafe { Box::from_raw(self.inner) };
+ }
+ }
+}
+#[no_mangle]
+pub extern "C" fn MonitorEvent_free(this_ptr: MonitorEvent) { }
+#[allow(unused)]
+/// Used only if an object of this type is returned as a trait impl by a method
+extern "C" fn MonitorEvent_free_void(this_ptr: *mut c_void) {
+ unsafe { let _ = Box::from_raw(this_ptr as *mut nativeMonitorEvent); }
+}
+#[allow(unused)]
+/// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy
+impl MonitorEvent {
+ pub(crate) fn take_ptr(mut self) -> *mut nativeMonitorEvent {
+ assert!(self.is_owned);
+ let ret = self.inner;
+ self.inner = std::ptr::null_mut();
+ ret
+ }
+}
+
+use lightning::ln::channelmonitor::HTLCUpdate as nativeHTLCUpdateImport;
+type nativeHTLCUpdate = nativeHTLCUpdateImport;
+
+/// Simple structure send back by ManyChannelMonitor in case of HTLC detected onchain from a
+/// forward channel and from which info are needed to update HTLC in a backward channel.
+#[must_use]
+#[repr(C)]
+pub struct HTLCUpdate {
+ /// Nearly everyhwere, 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 nativeHTLCUpdate,
+ pub is_owned: bool,
+}
+
+impl Drop for HTLCUpdate {
+ fn drop(&mut self) {
+ if self.is_owned && !self.inner.is_null() {
+ let _ = unsafe { Box::from_raw(self.inner) };
+ }
+ }
+}
+#[no_mangle]
+pub extern "C" fn HTLCUpdate_free(this_ptr: HTLCUpdate) { }
+#[allow(unused)]
+/// Used only if an object of this type is returned as a trait impl by a method
+extern "C" fn HTLCUpdate_free_void(this_ptr: *mut c_void) {
+ unsafe { let _ = Box::from_raw(this_ptr as *mut nativeHTLCUpdate); }
+}
+#[allow(unused)]
+/// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy
+impl HTLCUpdate {
+ pub(crate) fn take_ptr(mut self) -> *mut nativeHTLCUpdate {
+ assert!(self.is_owned);
+ let ret = self.inner;
+ self.inner = std::ptr::null_mut();
+ ret
+ }
+}
+impl Clone for HTLCUpdate {
+ fn clone(&self) -> Self {
+ Self {
+ inner: Box::into_raw(Box::new(unsafe { &*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 HTLCUpdate_clone_void(this_ptr: *const c_void) -> *mut c_void {
+ Box::into_raw(Box::new(unsafe { (*(this_ptr as *mut nativeHTLCUpdate)).clone() })) as *mut c_void
+}
+#[no_mangle]
+pub extern "C" fn HTLCUpdate_write(obj: *const HTLCUpdate) -> crate::c_types::derived::CVec_u8Z {
+ crate::c_types::serialize_obj(unsafe { &(*(*obj).inner) })
+}
+#[no_mangle]
+pub extern "C" fn HTLCUpdate_read(ser: crate::c_types::u8slice) -> HTLCUpdate {
+ if let Ok(res) = crate::c_types::deserialize_obj(ser) {
+ HTLCUpdate { inner: Box::into_raw(Box::new(res)), is_owned: true }
+ } else {
+ HTLCUpdate { inner: std::ptr::null_mut(), is_owned: true }
+ }
+}
+
+use lightning::ln::channelmonitor::ChannelMonitor as nativeChannelMonitorImport;
+type nativeChannelMonitor = nativeChannelMonitorImport<crate::chain::keysinterface::ChannelKeys>;
+
+/// A ChannelMonitor handles chain events (blocks connected and disconnected) and generates
+/// on-chain transactions to ensure no loss of funds occurs.
+///
+/// You MUST ensure that no ChannelMonitors for a given channel anywhere contain out-of-date
+/// information and are actively monitoring the chain.
+///
+/// Pending Events or updated HTLCs which have not yet been read out by
+/// get_and_clear_pending_monitor_events or get_and_clear_pending_events are serialized to disk and
+/// reloaded at deserialize-time. Thus, you must ensure that, when handling events, all events
+/// gotten are fully handled before re-serializing the new state.
+#[must_use]
+#[repr(C)]
+pub struct ChannelMonitor {
+ /// Nearly everyhwere, 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 nativeChannelMonitor,
+ pub is_owned: bool,
+}
+
+impl Drop for ChannelMonitor {
+ fn drop(&mut self) {
+ if self.is_owned && !self.inner.is_null() {
+ let _ = unsafe { Box::from_raw(self.inner) };
+ }
+ }
+}
+#[no_mangle]
+pub extern "C" fn ChannelMonitor_free(this_ptr: ChannelMonitor) { }
+#[allow(unused)]
+/// Used only if an object of this type is returned as a trait impl by a method
+extern "C" fn ChannelMonitor_free_void(this_ptr: *mut c_void) {
+ unsafe { let _ = Box::from_raw(this_ptr as *mut nativeChannelMonitor); }
+}
+#[allow(unused)]
+/// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy
+impl ChannelMonitor {
+ pub(crate) fn take_ptr(mut self) -> *mut nativeChannelMonitor {
+ assert!(self.is_owned);
+ let ret = self.inner;
+ self.inner = std::ptr::null_mut();
+ ret
+ }
+}
+/// Simple trait indicating ability to track a set of ChannelMonitors and multiplex events between
+/// them. Generally should be implemented by keeping a local SimpleManyChannelMonitor and passing
+/// events to it, while also taking any add/update_monitor events and passing them to some remote
+/// server(s).
+///
+/// In general, you must always have at least one local copy in memory, which must never fail to
+/// update (as it is responsible for broadcasting the latest state in case the channel is closed),
+/// and then persist it to various on-disk locations. If, for some reason, the in-memory copy fails
+/// to update (eg out-of-memory or some other condition), you must immediately shut down without
+/// taking any further action such as writing the current state to disk. This should likely be
+/// accomplished via panic!() or abort().
+///
+/// Note that any updates to a channel's monitor *must* be applied to each instance of the
+/// channel's monitor everywhere (including remote watchtowers) *before* this function returns. If
+/// an update occurs and a remote watchtower is left with old state, it may broadcast transactions
+/// which we have revoked, allowing our counterparty to claim all funds in the channel!
+///
+/// User needs to notify implementors of ManyChannelMonitor when a new block is connected or
+/// disconnected using their `block_connected` and `block_disconnected` methods. However, rather
+/// than calling these methods directly, the user should register implementors as listeners to the
+/// BlockNotifier and call the BlockNotifier's `block_(dis)connected` methods, which will notify
+/// all registered listeners in one go.
+#[repr(C)]
+pub struct ManyChannelMonitor {
+ pub this_arg: *mut c_void,
+ /// Adds a monitor for the given `funding_txo`.
+ ///
+ /// Implementer must also ensure that the funding_txo txid *and* outpoint are registered with
+ /// any relevant ChainWatchInterfaces such that the provided monitor receives block_connected
+ /// callbacks with the funding transaction, or any spends of it.
+ ///
+ /// Further, the implementer must also ensure that each output returned in
+ /// monitor.get_outputs_to_watch() is registered to ensure that the provided monitor learns about
+ /// any spends of any of the outputs.
+ ///
+ /// Any spends of outputs which should have been registered which aren't passed to
+ /// ChannelMonitors via block_connected may result in FUNDS LOSS.
+ #[must_use]
+ pub add_monitor: extern "C" fn (this_arg: *const c_void, funding_txo: crate::chain::transaction::OutPoint, monitor: crate::ln::channelmonitor::ChannelMonitor) -> crate::c_types::derived::CResult_NoneChannelMonitorUpdateErrZ,
+ /// Updates a monitor for the given `funding_txo`.
+ ///
+ /// Implementer must also ensure that the funding_txo txid *and* outpoint are registered with
+ /// any relevant ChainWatchInterfaces such that the provided monitor receives block_connected
+ /// callbacks with the funding transaction, or any spends of it.
+ ///
+ /// Further, the implementer must also ensure that each output returned in
+ /// monitor.get_watch_outputs() is registered to ensure that the provided monitor learns about
+ /// any spends of any of the outputs.
+ ///
+ /// Any spends of outputs which should have been registered which aren't passed to
+ /// ChannelMonitors via block_connected may result in FUNDS LOSS.
+ #[must_use]
+ pub update_monitor: extern "C" fn (this_arg: *const c_void, funding_txo: crate::chain::transaction::OutPoint, monitor: crate::ln::channelmonitor::ChannelMonitorUpdate) -> crate::c_types::derived::CResult_NoneChannelMonitorUpdateErrZ,
+ /// Used by ChannelManager to get list of HTLC resolved onchain and which needed to be updated
+ /// with success or failure.
+ ///
+ /// You should probably just call through to
+ /// ChannelMonitor::get_and_clear_pending_monitor_events() for each ChannelMonitor and return
+ /// the full list.
+ #[must_use]
+ pub get_and_clear_pending_monitor_events: extern "C" fn (this_arg: *const c_void) -> crate::c_types::derived::CVec_MonitorEventZ,
+ pub free: Option<extern "C" fn(this_arg: *mut c_void)>,
+}
+unsafe impl Send for ManyChannelMonitor {}
+unsafe impl Sync for ManyChannelMonitor {}
+
+use lightning::ln::channelmonitor::ManyChannelMonitor as rustManyChannelMonitor;
+impl rustManyChannelMonitor for ManyChannelMonitor {
+ type Keys = crate::chain::keysinterface::ChannelKeys;
+ fn add_monitor(&self, funding_txo: lightning::chain::transaction::OutPoint, monitor: lightning::ln::channelmonitor::ChannelMonitor<Self::Keys>) -> Result<(), lightning::ln::channelmonitor::ChannelMonitorUpdateErr> {
+ let mut ret = (self.add_monitor)(self.this_arg, crate::chain::transaction::OutPoint { inner: Box::into_raw(Box::new(funding_txo)), is_owned: true }, crate::ln::channelmonitor::ChannelMonitor { inner: Box::into_raw(Box::new(monitor)), is_owned: true });
+ let mut local_ret = match ret.result_ok { true => Ok( { () /*(*unsafe { Box::from_raw(ret.contents.result.take_ptr()) })*/ }), false => Err( { (*unsafe { Box::from_raw(ret.contents.err.take_ptr()) }).into_native() })};
+ local_ret
+ }
+ fn update_monitor(&self, funding_txo: lightning::chain::transaction::OutPoint, monitor: lightning::ln::channelmonitor::ChannelMonitorUpdate) -> Result<(), lightning::ln::channelmonitor::ChannelMonitorUpdateErr> {
+ let mut ret = (self.update_monitor)(self.this_arg, crate::chain::transaction::OutPoint { inner: Box::into_raw(Box::new(funding_txo)), is_owned: true }, crate::ln::channelmonitor::ChannelMonitorUpdate { inner: Box::into_raw(Box::new(monitor)), is_owned: true });
+ let mut local_ret = match ret.result_ok { true => Ok( { () /*(*unsafe { Box::from_raw(ret.contents.result.take_ptr()) })*/ }), false => Err( { (*unsafe { Box::from_raw(ret.contents.err.take_ptr()) }).into_native() })};
+ local_ret
+ }
+ fn get_and_clear_pending_monitor_events(&self) -> Vec<lightning::ln::channelmonitor::MonitorEvent> {
+ let mut ret = (self.get_and_clear_pending_monitor_events)(self.this_arg);
+ let mut local_ret = Vec::new(); for mut item in ret.into_rust().drain(..) { local_ret.push( { *unsafe { Box::from_raw(item.take_ptr()) } }); };
+ local_ret
+ }
+}
+
+// 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 ManyChannelMonitor {
+ type Target = Self;
+ fn deref(&self) -> &Self {
+ self
+ }
+}
+/// Calls the free function if one is set
+#[no_mangle]
+pub extern "C" fn ManyChannelMonitor_free(this_ptr: ManyChannelMonitor) { }
+impl Drop for ManyChannelMonitor {
+ fn drop(&mut self) {
+ if let Some(f) = self.free {
+ f(self.this_arg);
+ }
+ }
+}
+/// Updates a ChannelMonitor on the basis of some new information provided by the Channel
+/// itself.
+///
+/// panics if the given update is not the next update by update_id.
+#[must_use]
+#[no_mangle]
+pub extern "C" fn ChannelMonitor_update_monitor(this_arg: &mut ChannelMonitor, mut updates: crate::ln::channelmonitor::ChannelMonitorUpdate, broadcaster: &crate::chain::chaininterface::BroadcasterInterface, logger: &crate::util::logger::Logger) -> crate::c_types::derived::CResult_NoneMonitorUpdateErrorZ {
+ let mut ret = unsafe { &mut (*(this_arg.inner as *mut nativeChannelMonitor)) }.update_monitor(*unsafe { Box::from_raw(updates.take_ptr()) }, broadcaster, logger);
+ let mut local_ret = match ret { Ok(mut o) => crate::c_types::CResultTempl::ok( { 0u8 /*o*/ }), Err(mut e) => crate::c_types::CResultTempl::err( { crate::ln::channelmonitor::MonitorUpdateError { inner: Box::into_raw(Box::new(e)), is_owned: true } }) };
+ local_ret
+}
+
+/// Gets the update_id from the latest ChannelMonitorUpdate which was applied to this
+/// ChannelMonitor.
+#[must_use]
+#[no_mangle]
+pub extern "C" fn ChannelMonitor_get_latest_update_id(this_arg: &ChannelMonitor) -> u64 {
+ let mut ret = unsafe { &*this_arg.inner }.get_latest_update_id();
+ ret
+}
+
+/// Gets the funding transaction outpoint of the channel this ChannelMonitor is monitoring for.
+#[must_use]
+#[no_mangle]
+pub extern "C" fn ChannelMonitor_get_funding_txo(this_arg: &ChannelMonitor) -> crate::c_types::derived::C2Tuple_OutPointScriptZ {
+ let mut ret = unsafe { &*this_arg.inner }.get_funding_txo();
+ let (ref orig_ret_0, ref orig_ret_1) = ret; let mut local_ret = (crate::chain::transaction::OutPoint { inner: unsafe { ( (&(*orig_ret_0) as *const _) as *mut _) }, is_owned: false }, orig_ret_1.clone().into_bytes().into()).into();
+ local_ret
+}
+
+/// Get the list of HTLCs who's status has been updated on chain. This should be called by
+/// ChannelManager via ManyChannelMonitor::get_and_clear_pending_monitor_events().
+#[must_use]
+#[no_mangle]
+pub extern "C" fn ChannelMonitor_get_and_clear_pending_monitor_events(this_arg: &mut ChannelMonitor) -> crate::c_types::derived::CVec_MonitorEventZ {
+ let mut ret = unsafe { &mut (*(this_arg.inner as *mut nativeChannelMonitor)) }.get_and_clear_pending_monitor_events();
+ let mut local_ret = Vec::new(); for item in ret.drain(..) { local_ret.push( { crate::ln::channelmonitor::MonitorEvent { inner: Box::into_raw(Box::new(item)), is_owned: true } }); };
+ local_ret.into()
+}
+
+/// Gets the list of pending events which were generated by previous actions, clearing the list
+/// in the process.
+///
+/// This is called by ManyChannelMonitor::get_and_clear_pending_events() and is equivalent to
+/// EventsProvider::get_and_clear_pending_events() except that it requires &mut self as we do
+/// no internal locking in ChannelMonitors.
+#[must_use]
+#[no_mangle]
+pub extern "C" fn ChannelMonitor_get_and_clear_pending_events(this_arg: &mut ChannelMonitor) -> crate::c_types::derived::CVec_EventZ {
+ let mut ret = unsafe { &mut (*(this_arg.inner as *mut nativeChannelMonitor)) }.get_and_clear_pending_events();
+ let mut local_ret = Vec::new(); for item in ret.drain(..) { local_ret.push( { crate::util::events::Event::native_into(item) }); };
+ local_ret.into()
+}
+
+/// Used by ChannelManager deserialization to broadcast the latest local state if its copy of
+/// the Channel was out-of-date. You may use it to get a broadcastable local toxic tx in case of
+/// fallen-behind, i.e when receiving a channel_reestablish with a proof that our remote side knows
+/// a higher revocation secret than the local commitment number we are aware of. Broadcasting these
+/// transactions are UNSAFE, as they allow remote side to punish you. Nevertheless you may want to
+/// broadcast them if remote don't close channel with his higher commitment transaction after a
+/// substantial amount of time (a month or even a year) to get back funds. Best may be to contact
+/// out-of-band the other node operator to coordinate with him if option is available to you.
+/// In any-case, choice is up to the user.
+#[must_use]
+#[no_mangle]
+pub extern "C" fn ChannelMonitor_get_latest_local_commitment_txn(this_arg: &mut ChannelMonitor, logger: &crate::util::logger::Logger) -> crate::c_types::derived::CVec_TransactionZ {
+ let mut ret = unsafe { &mut (*(this_arg.inner as *mut nativeChannelMonitor)) }.get_latest_local_commitment_txn(logger);
+ let mut local_ret = Vec::new(); for item in ret.drain(..) { local_ret.push( { let mut local_ret_0 = ::bitcoin::consensus::encode::serialize(&item); local_ret_0.into() }); };
+ local_ret.into()
+}
+
projects / rust-lightning / blobdiff