_ Git - ldk-c-bindings/blob - lightning-c-bindings/src/lightning/chain/channelmonitor.rs

   1 // This file is Copyright its original authors, visible in version control
   2 // history and in the source files from which this was generated.
   3 //
   4 // This file is licensed under the license available in the LICENSE or LICENSE.md
   5 // file in the root of this repository or, if no such file exists, the same
   6 // license as that which applies to the original source files from which this
   7 // source was automatically generated.
   8
   9 //! The logic to monitor for on-chain transactions and create the relevant claim responses lives
  10 //! here.
  11 //!
  12 //! ChannelMonitor objects are generated by ChannelManager in response to relevant
  13 //! messages/actions, and MUST be persisted to disk (and, preferably, remotely) before progress can
  14 //! be made in responding to certain messages, see [`chain::Watch`] for more.
  15 //!
  16 //! Note that ChannelMonitors are an important part of the lightning trust model and a copy of the
  17 //! latest ChannelMonitor must always be actively monitoring for chain updates (and no out-of-date
  18 //! ChannelMonitors should do so). Thus, if you're building rust-lightning into an HSM or other
  19 //! security-domain-separated system design, you should consider having multiple paths for
  20 //! ChannelMonitors to get out of the HSM and onto monitoring devices.
  21
  22 use alloc::str::FromStr;
  23 use core::ffi::c_void;
  24 use core::convert::Infallible;
  25 use bitcoin::hashes::Hash;
  26 use crate::c_types::*;
  27 #[cfg(feature="no-std")]
  28 use alloc::{vec::Vec, boxed::Box};
  29
  30
  31 use lightning::chain::channelmonitor::ChannelMonitorUpdate as nativeChannelMonitorUpdateImport;
  32 pub(crate) type nativeChannelMonitorUpdate = nativeChannelMonitorUpdateImport;
  33
  34 /// An update generated by the underlying Channel itself which contains some new information the
  35 /// ChannelMonitor should be made aware of.
  36 #[must_use]
  37 #[repr(C)]
  38 pub struct ChannelMonitorUpdate {
  39         /// A pointer to the opaque Rust object.
  40
  41         /// Nearly everywhere, inner must be non-null, however in places where
  42         /// the Rust equivalent takes an Option, it may be set to null to indicate None.
  43         pub inner: *mut nativeChannelMonitorUpdate,
  44         /// Indicates that this is the only struct which contains the same pointer.
  45
  46         /// Rust functions which take ownership of an object provided via an argument require
  47         /// this to be true and invalidate the object pointed to by inner.
  48         pub is_owned: bool,
  49 }
  50
  51 impl Drop for ChannelMonitorUpdate {
  52         fn drop(&mut self) {
  53                 if self.is_owned && !<*mut nativeChannelMonitorUpdate>::is_null(self.inner) {
  54                         let _ = unsafe { Box::from_raw(ObjOps::untweak_ptr(self.inner)) };
  55                 }
  56         }
  57 }
  58 /// Frees any resources used by the ChannelMonitorUpdate, if is_owned is set and inner is non-NULL.
  59 #[no_mangle]
  60 pub extern "C" fn ChannelMonitorUpdate_free(this_obj: ChannelMonitorUpdate) { }
  61 #[allow(unused)]
  62 /// Used only if an object of this type is returned as a trait impl by a method
  63 pub(crate) extern "C" fn ChannelMonitorUpdate_free_void(this_ptr: *mut c_void) {
  64         unsafe { let _ = Box::from_raw(this_ptr as *mut nativeChannelMonitorUpdate); }
  65 }
  66 #[allow(unused)]
  67 impl ChannelMonitorUpdate {
  68         pub(crate) fn get_native_ref(&self) -> &'static nativeChannelMonitorUpdate {
  69                 unsafe { &*ObjOps::untweak_ptr(self.inner) }
  70         }
  71         pub(crate) fn get_native_mut_ref(&self) -> &'static mut nativeChannelMonitorUpdate {
  72                 unsafe { &mut *ObjOps::untweak_ptr(self.inner) }
  73         }
  74         /// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy
  75         pub(crate) fn take_inner(mut self) -> *mut nativeChannelMonitorUpdate {
  76                 assert!(self.is_owned);
  77                 let ret = ObjOps::untweak_ptr(self.inner);
  78                 self.inner = core::ptr::null_mut();
  79                 ret
  80         }
  81 }
  82 /// The sequence number of this update. Updates *must* be replayed in-order according to this
  83 /// sequence number (and updates may panic if they are not). The update_id values are strictly
  84 /// increasing and increase by one for each new update, with one exception specified below.
  85 ///
  86 /// This sequence number is also used to track up to which points updates which returned
  87 /// ChannelMonitorUpdateErr::TemporaryFailure have been applied to all copies of a given
  88 /// ChannelMonitor when ChannelManager::channel_monitor_updated is called.
  89 ///
  90 /// The only instance where update_id values are not strictly increasing is the case where we
  91 /// allow post-force-close updates with a special update ID of [`CLOSED_CHANNEL_UPDATE_ID`]. See
  92 /// its docs for more details.
  93 #[no_mangle]
  94 pub extern "C" fn ChannelMonitorUpdate_get_update_id(this_ptr: &ChannelMonitorUpdate) -> u64 {
  95         let mut inner_val = &mut this_ptr.get_native_mut_ref().update_id;
  96         *inner_val
  97 }
  98 /// The sequence number of this update. Updates *must* be replayed in-order according to this
  99 /// sequence number (and updates may panic if they are not). The update_id values are strictly
 100 /// increasing and increase by one for each new update, with one exception specified below.
 101 ///
 102 /// This sequence number is also used to track up to which points updates which returned
 103 /// ChannelMonitorUpdateErr::TemporaryFailure have been applied to all copies of a given
 104 /// ChannelMonitor when ChannelManager::channel_monitor_updated is called.
 105 ///
 106 /// The only instance where update_id values are not strictly increasing is the case where we
 107 /// allow post-force-close updates with a special update ID of [`CLOSED_CHANNEL_UPDATE_ID`]. See
 108 /// its docs for more details.
 109 #[no_mangle]
 110 pub extern "C" fn ChannelMonitorUpdate_set_update_id(this_ptr: &mut ChannelMonitorUpdate, mut val: u64) {
 111         unsafe { &mut *ObjOps::untweak_ptr(this_ptr.inner) }.update_id = val;
 112 }
 113 impl Clone for ChannelMonitorUpdate {
 114         fn clone(&self) -> Self {
 115                 Self {
 116                         inner: if <*mut nativeChannelMonitorUpdate>::is_null(self.inner) { core::ptr::null_mut() } else {
 117                                 ObjOps::heap_alloc(unsafe { &*ObjOps::untweak_ptr(self.inner) }.clone()) },
 118                         is_owned: true,
 119                 }
 120         }
 121 }
 122 #[allow(unused)]
 123 /// Used only if an object of this type is returned as a trait impl by a method
 124 pub(crate) extern "C" fn ChannelMonitorUpdate_clone_void(this_ptr: *const c_void) -> *mut c_void {
 125         Box::into_raw(Box::new(unsafe { (*(this_ptr as *mut nativeChannelMonitorUpdate)).clone() })) as *mut c_void
 126 }
 127 #[no_mangle]
 128 /// Creates a copy of the ChannelMonitorUpdate
 129 pub extern "C" fn ChannelMonitorUpdate_clone(orig: &ChannelMonitorUpdate) -> ChannelMonitorUpdate {
 130         orig.clone()
 131 }
 132 /// If:
 133 ///    (1) a channel has been force closed and
 134 ///    (2) we receive a preimage from a forward link that allows us to spend an HTLC output on
 135 ///        this channel's (the backward link's) broadcasted commitment transaction
 136 /// then we allow the `ChannelManager` to send a `ChannelMonitorUpdate` with this update ID,
 137 /// with the update providing said payment preimage. No other update types are allowed after
 138 /// force-close.
 139
 140 #[no_mangle]
 141 pub static CLOSED_CHANNEL_UPDATE_ID: u64 = lightning::chain::channelmonitor::CLOSED_CHANNEL_UPDATE_ID;
 142 #[no_mangle]
 143 /// Serialize the ChannelMonitorUpdate object into a byte array which can be read by ChannelMonitorUpdate_read
 144 pub extern "C" fn ChannelMonitorUpdate_write(obj: &crate::lightning::chain::channelmonitor::ChannelMonitorUpdate) -> crate::c_types::derived::CVec_u8Z {
 145         crate::c_types::serialize_obj(unsafe { &*obj }.get_native_ref())
 146 }
 147 #[no_mangle]
 148 pub(crate) extern "C" fn ChannelMonitorUpdate_write_void(obj: *const c_void) -> crate::c_types::derived::CVec_u8Z {
 149         crate::c_types::serialize_obj(unsafe { &*(obj as *const nativeChannelMonitorUpdate) })
 150 }
 151 #[no_mangle]
 152 /// Read a ChannelMonitorUpdate from a byte array, created by ChannelMonitorUpdate_write
 153 pub extern "C" fn ChannelMonitorUpdate_read(ser: crate::c_types::u8slice) -> crate::c_types::derived::CResult_ChannelMonitorUpdateDecodeErrorZ {
 154         let res: Result<lightning::chain::channelmonitor::ChannelMonitorUpdate, lightning::ln::msgs::DecodeError> = crate::c_types::deserialize_obj(ser);
 155         let mut local_res = match res { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::lightning::chain::channelmonitor::ChannelMonitorUpdate { 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() };
 156         local_res
 157 }
 158 /// An event to be processed by the ChannelManager.
 159 #[derive(Clone)]
 160 #[must_use]
 161 #[repr(C)]
 162 pub enum MonitorEvent {
 163         /// A monitor event containing an HTLCUpdate.
 164         HTLCEvent(crate::lightning::chain::channelmonitor::HTLCUpdate),
 165         /// A monitor event that the Channel's commitment transaction was confirmed.
 166         CommitmentTxConfirmed(crate::lightning::chain::transaction::OutPoint),
 167         /// Indicates a [`ChannelMonitor`] update has completed. See
 168         /// [`ChannelMonitorUpdateErr::TemporaryFailure`] for more information on how this is used.
 169         ///
 170         /// [`ChannelMonitorUpdateErr::TemporaryFailure`]: super::ChannelMonitorUpdateErr::TemporaryFailure
 171         UpdateCompleted {
 172                 /// The funding outpoint of the [`ChannelMonitor`] that was updated
 173                 funding_txo: crate::lightning::chain::transaction::OutPoint,
 174                 /// The Update ID from [`ChannelMonitorUpdate::update_id`] which was applied or
 175                 /// [`ChannelMonitor::get_latest_update_id`].
 176                 ///
 177                 /// Note that this should only be set to a given update's ID if all previous updates for the
 178                 /// same [`ChannelMonitor`] have been applied and persisted.
 179                 monitor_update_id: u64,
 180         },
 181         /// Indicates a [`ChannelMonitor`] update has failed. See
 182         /// [`ChannelMonitorUpdateErr::PermanentFailure`] for more information on how this is used.
 183         ///
 184         /// [`ChannelMonitorUpdateErr::PermanentFailure`]: super::ChannelMonitorUpdateErr::PermanentFailure
 185         UpdateFailed(crate::lightning::chain::transaction::OutPoint),
 186 }
 187 use lightning::chain::channelmonitor::MonitorEvent as MonitorEventImport;
 188 pub(crate) type nativeMonitorEvent = MonitorEventImport;
 189
 190 impl MonitorEvent {
 191         #[allow(unused)]
 192         pub(crate) fn to_native(&self) -> nativeMonitorEvent {
 193                 match self {
 194                         MonitorEvent::HTLCEvent (ref a, ) => {
 195                                 let mut a_nonref = (*a).clone();
 196                                 nativeMonitorEvent::HTLCEvent (
 197                                         *unsafe { Box::from_raw(a_nonref.take_inner()) },
 198                                 )
 199                         },
 200                         MonitorEvent::CommitmentTxConfirmed (ref a, ) => {
 201                                 let mut a_nonref = (*a).clone();
 202                                 nativeMonitorEvent::CommitmentTxConfirmed (
 203                                         *unsafe { Box::from_raw(a_nonref.take_inner()) },
 204                                 )
 205                         },
 206                         MonitorEvent::UpdateCompleted {ref funding_txo, ref monitor_update_id, } => {
 207                                 let mut funding_txo_nonref = (*funding_txo).clone();
 208                                 let mut monitor_update_id_nonref = (*monitor_update_id).clone();
 209                                 nativeMonitorEvent::UpdateCompleted {
 210                                         funding_txo: *unsafe { Box::from_raw(funding_txo_nonref.take_inner()) },
 211                                         monitor_update_id: monitor_update_id_nonref,
 212                                 }
 213                         },
 214                         MonitorEvent::UpdateFailed (ref a, ) => {
 215                                 let mut a_nonref = (*a).clone();
 216                                 nativeMonitorEvent::UpdateFailed (
 217                                         *unsafe { Box::from_raw(a_nonref.take_inner()) },
 218                                 )
 219                         },
 220                 }
 221         }
 222         #[allow(unused)]
 223         pub(crate) fn into_native(self) -> nativeMonitorEvent {
 224                 match self {
 225                         MonitorEvent::HTLCEvent (mut a, ) => {
 226                                 nativeMonitorEvent::HTLCEvent (
 227                                         *unsafe { Box::from_raw(a.take_inner()) },
 228                                 )
 229                         },
 230                         MonitorEvent::CommitmentTxConfirmed (mut a, ) => {
 231                                 nativeMonitorEvent::CommitmentTxConfirmed (
 232                                         *unsafe { Box::from_raw(a.take_inner()) },
 233                                 )
 234                         },
 235                         MonitorEvent::UpdateCompleted {mut funding_txo, mut monitor_update_id, } => {
 236                                 nativeMonitorEvent::UpdateCompleted {
 237                                         funding_txo: *unsafe { Box::from_raw(funding_txo.take_inner()) },
 238                                         monitor_update_id: monitor_update_id,
 239                                 }
 240                         },
 241                         MonitorEvent::UpdateFailed (mut a, ) => {
 242                                 nativeMonitorEvent::UpdateFailed (
 243                                         *unsafe { Box::from_raw(a.take_inner()) },
 244                                 )
 245                         },
 246                 }
 247         }
 248         #[allow(unused)]
 249         pub(crate) fn from_native(native: &nativeMonitorEvent) -> Self {
 250                 match native {
 251                         nativeMonitorEvent::HTLCEvent (ref a, ) => {
 252                                 let mut a_nonref = (*a).clone();
 253                                 MonitorEvent::HTLCEvent (
 254                                         crate::lightning::chain::channelmonitor::HTLCUpdate { inner: ObjOps::heap_alloc(a_nonref), is_owned: true },
 255                                 )
 256                         },
 257                         nativeMonitorEvent::CommitmentTxConfirmed (ref a, ) => {
 258                                 let mut a_nonref = (*a).clone();
 259                                 MonitorEvent::CommitmentTxConfirmed (
 260                                         crate::lightning::chain::transaction::OutPoint { inner: ObjOps::heap_alloc(a_nonref), is_owned: true },
 261                                 )
 262                         },
 263                         nativeMonitorEvent::UpdateCompleted {ref funding_txo, ref monitor_update_id, } => {
 264                                 let mut funding_txo_nonref = (*funding_txo).clone();
 265                                 let mut monitor_update_id_nonref = (*monitor_update_id).clone();
 266                                 MonitorEvent::UpdateCompleted {
 267                                         funding_txo: crate::lightning::chain::transaction::OutPoint { inner: ObjOps::heap_alloc(funding_txo_nonref), is_owned: true },
 268                                         monitor_update_id: monitor_update_id_nonref,
 269                                 }
 270                         },
 271                         nativeMonitorEvent::UpdateFailed (ref a, ) => {
 272                                 let mut a_nonref = (*a).clone();
 273                                 MonitorEvent::UpdateFailed (
 274                                         crate::lightning::chain::transaction::OutPoint { inner: ObjOps::heap_alloc(a_nonref), is_owned: true },
 275                                 )
 276                         },
 277                 }
 278         }
 279         #[allow(unused)]
 280         pub(crate) fn native_into(native: nativeMonitorEvent) -> Self {
 281                 match native {
 282                         nativeMonitorEvent::HTLCEvent (mut a, ) => {
 283                                 MonitorEvent::HTLCEvent (
 284                                         crate::lightning::chain::channelmonitor::HTLCUpdate { inner: ObjOps::heap_alloc(a), is_owned: true },
 285                                 )
 286                         },
 287                         nativeMonitorEvent::CommitmentTxConfirmed (mut a, ) => {
 288                                 MonitorEvent::CommitmentTxConfirmed (
 289                                         crate::lightning::chain::transaction::OutPoint { inner: ObjOps::heap_alloc(a), is_owned: true },
 290                                 )
 291                         },
 292                         nativeMonitorEvent::UpdateCompleted {mut funding_txo, mut monitor_update_id, } => {
 293                                 MonitorEvent::UpdateCompleted {
 294                                         funding_txo: crate::lightning::chain::transaction::OutPoint { inner: ObjOps::heap_alloc(funding_txo), is_owned: true },
 295                                         monitor_update_id: monitor_update_id,
 296                                 }
 297                         },
 298                         nativeMonitorEvent::UpdateFailed (mut a, ) => {
 299                                 MonitorEvent::UpdateFailed (
 300                                         crate::lightning::chain::transaction::OutPoint { inner: ObjOps::heap_alloc(a), is_owned: true },
 301                                 )
 302                         },
 303                 }
 304         }
 305 }
 306 /// Frees any resources used by the MonitorEvent
 307 #[no_mangle]
 308 pub extern "C" fn MonitorEvent_free(this_ptr: MonitorEvent) { }
 309 /// Creates a copy of the MonitorEvent
 310 #[no_mangle]
 311 pub extern "C" fn MonitorEvent_clone(orig: &MonitorEvent) -> MonitorEvent {
 312         orig.clone()
 313 }
 314 #[no_mangle]
 315 /// Utility method to constructs a new HTLCEvent-variant MonitorEvent
 316 pub extern "C" fn MonitorEvent_htlcevent(a: crate::lightning::chain::channelmonitor::HTLCUpdate) -> MonitorEvent {
 317         MonitorEvent::HTLCEvent(a, )
 318 }
 319 #[no_mangle]
 320 /// Utility method to constructs a new CommitmentTxConfirmed-variant MonitorEvent
 321 pub extern "C" fn MonitorEvent_commitment_tx_confirmed(a: crate::lightning::chain::transaction::OutPoint) -> MonitorEvent {
 322         MonitorEvent::CommitmentTxConfirmed(a, )
 323 }
 324 #[no_mangle]
 325 /// Utility method to constructs a new UpdateCompleted-variant MonitorEvent
 326 pub extern "C" fn MonitorEvent_update_completed(funding_txo: crate::lightning::chain::transaction::OutPoint, monitor_update_id: u64) -> MonitorEvent {
 327         MonitorEvent::UpdateCompleted {
 328                 funding_txo,
 329                 monitor_update_id,
 330         }
 331 }
 332 #[no_mangle]
 333 /// Utility method to constructs a new UpdateFailed-variant MonitorEvent
 334 pub extern "C" fn MonitorEvent_update_failed(a: crate::lightning::chain::transaction::OutPoint) -> MonitorEvent {
 335         MonitorEvent::UpdateFailed(a, )
 336 }
 337 #[no_mangle]
 338 /// Serialize the MonitorEvent object into a byte array which can be read by MonitorEvent_read
 339 pub extern "C" fn MonitorEvent_write(obj: &crate::lightning::chain::channelmonitor::MonitorEvent) -> crate::c_types::derived::CVec_u8Z {
 340         crate::c_types::serialize_obj(&unsafe { &*obj }.to_native())
 341 }
 342 #[no_mangle]
 343 /// Read a MonitorEvent from a byte array, created by MonitorEvent_write
 344 pub extern "C" fn MonitorEvent_read(ser: crate::c_types::u8slice) -> crate::c_types::derived::CResult_COption_MonitorEventZDecodeErrorZ {
 345         let res: Result<Option<lightning::chain::channelmonitor::MonitorEvent>, lightning::ln::msgs::DecodeError> = crate::c_types::maybe_deserialize_obj(ser);
 346         let mut local_res = match res { Ok(mut o) => crate::c_types::CResultTempl::ok( { let mut local_res_0 = if o.is_none() { crate::c_types::derived::COption_MonitorEventZ::None } else { crate::c_types::derived::COption_MonitorEventZ::Some( { crate::lightning::chain::channelmonitor::MonitorEvent::native_into(o.unwrap()) }) }; local_res_0 }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::lightning::ln::msgs::DecodeError { inner: ObjOps::heap_alloc(e), is_owned: true } }).into() };
 347         local_res
 348 }
 349
 350 use lightning::chain::channelmonitor::HTLCUpdate as nativeHTLCUpdateImport;
 351 pub(crate) type nativeHTLCUpdate = nativeHTLCUpdateImport;
 352
 353 /// Simple structure sent back by `chain::Watch` when an HTLC from a forward channel is detected on
 354 /// chain. Used to update the corresponding HTLC in the backward channel. Failing to pass the
 355 /// preimage claim backward will lead to loss of funds.
 356 #[must_use]
 357 #[repr(C)]
 358 pub struct HTLCUpdate {
 359         /// A pointer to the opaque Rust object.
 360
 361         /// Nearly everywhere, inner must be non-null, however in places where
 362         /// the Rust equivalent takes an Option, it may be set to null to indicate None.
 363         pub inner: *mut nativeHTLCUpdate,
 364         /// Indicates that this is the only struct which contains the same pointer.
 365
 366         /// Rust functions which take ownership of an object provided via an argument require
 367         /// this to be true and invalidate the object pointed to by inner.
 368         pub is_owned: bool,
 369 }
 370
 371 impl Drop for HTLCUpdate {
 372         fn drop(&mut self) {
 373                 if self.is_owned && !<*mut nativeHTLCUpdate>::is_null(self.inner) {
 374                         let _ = unsafe { Box::from_raw(ObjOps::untweak_ptr(self.inner)) };
 375                 }
 376         }
 377 }
 378 /// Frees any resources used by the HTLCUpdate, if is_owned is set and inner is non-NULL.
 379 #[no_mangle]
 380 pub extern "C" fn HTLCUpdate_free(this_obj: HTLCUpdate) { }
 381 #[allow(unused)]
 382 /// Used only if an object of this type is returned as a trait impl by a method
 383 pub(crate) extern "C" fn HTLCUpdate_free_void(this_ptr: *mut c_void) {
 384         unsafe { let _ = Box::from_raw(this_ptr as *mut nativeHTLCUpdate); }
 385 }
 386 #[allow(unused)]
 387 impl HTLCUpdate {
 388         pub(crate) fn get_native_ref(&self) -> &'static nativeHTLCUpdate {
 389                 unsafe { &*ObjOps::untweak_ptr(self.inner) }
 390         }
 391         pub(crate) fn get_native_mut_ref(&self) -> &'static mut nativeHTLCUpdate {
 392                 unsafe { &mut *ObjOps::untweak_ptr(self.inner) }
 393         }
 394         /// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy
 395         pub(crate) fn take_inner(mut self) -> *mut nativeHTLCUpdate {
 396                 assert!(self.is_owned);
 397                 let ret = ObjOps::untweak_ptr(self.inner);
 398                 self.inner = core::ptr::null_mut();
 399                 ret
 400         }
 401 }
 402 impl Clone for HTLCUpdate {
 403         fn clone(&self) -> Self {
 404                 Self {
 405                         inner: if <*mut nativeHTLCUpdate>::is_null(self.inner) { core::ptr::null_mut() } else {
 406                                 ObjOps::heap_alloc(unsafe { &*ObjOps::untweak_ptr(self.inner) }.clone()) },
 407                         is_owned: true,
 408                 }
 409         }
 410 }
 411 #[allow(unused)]
 412 /// Used only if an object of this type is returned as a trait impl by a method
 413 pub(crate) extern "C" fn HTLCUpdate_clone_void(this_ptr: *const c_void) -> *mut c_void {
 414         Box::into_raw(Box::new(unsafe { (*(this_ptr as *mut nativeHTLCUpdate)).clone() })) as *mut c_void
 415 }
 416 #[no_mangle]
 417 /// Creates a copy of the HTLCUpdate
 418 pub extern "C" fn HTLCUpdate_clone(orig: &HTLCUpdate) -> HTLCUpdate {
 419         orig.clone()
 420 }
 421 #[no_mangle]
 422 /// Serialize the HTLCUpdate object into a byte array which can be read by HTLCUpdate_read
 423 pub extern "C" fn HTLCUpdate_write(obj: &crate::lightning::chain::channelmonitor::HTLCUpdate) -> crate::c_types::derived::CVec_u8Z {
 424         crate::c_types::serialize_obj(unsafe { &*obj }.get_native_ref())
 425 }
 426 #[no_mangle]
 427 pub(crate) extern "C" fn HTLCUpdate_write_void(obj: *const c_void) -> crate::c_types::derived::CVec_u8Z {
 428         crate::c_types::serialize_obj(unsafe { &*(obj as *const nativeHTLCUpdate) })
 429 }
 430 #[no_mangle]
 431 /// Read a HTLCUpdate from a byte array, created by HTLCUpdate_write
 432 pub extern "C" fn HTLCUpdate_read(ser: crate::c_types::u8slice) -> crate::c_types::derived::CResult_HTLCUpdateDecodeErrorZ {
 433         let res: Result<lightning::chain::channelmonitor::HTLCUpdate, lightning::ln::msgs::DecodeError> = crate::c_types::deserialize_obj(ser);
 434         let mut local_res = match res { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::lightning::chain::channelmonitor::HTLCUpdate { 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() };
 435         local_res
 436 }
 437 /// Number of blocks we wait on seeing a HTLC output being solved before we fail corresponding
 438 /// inbound HTLCs. This prevents us from failing backwards and then getting a reorg resulting in us
 439 /// losing money.
 440 ///
 441 /// Note that this is a library-wide security assumption. If a reorg deeper than this number of
 442 /// blocks occurs, counterparties may be able to steal funds or claims made by and balances exposed
 443 /// by a  [`ChannelMonitor`] may be incorrect.
 444
 445 #[no_mangle]
 446 pub static ANTI_REORG_DELAY: u32 = lightning::chain::channelmonitor::ANTI_REORG_DELAY;
 447 /// Details about the balance(s) available for spending once the channel appears on chain.
 448 ///
 449 /// See [`ChannelMonitor::get_claimable_balances`] for more details on when these will or will not
 450 /// be provided.
 451 #[derive(Clone)]
 452 #[must_use]
 453 #[repr(C)]
 454 pub enum Balance {
 455         /// The channel is not yet closed (or the commitment or closing transaction has not yet
 456         /// appeared in a block). The given balance is claimable (less on-chain fees) if the channel is
 457         /// force-closed now.
 458         ClaimableOnChannelClose {
 459                 /// The amount available to claim, in satoshis, excluding the on-chain fees which will be
 460                 /// required to do so.
 461                 claimable_amount_satoshis: u64,
 462         },
 463         /// The channel has been closed, and the given balance is ours but awaiting confirmations until
 464         /// we consider it spendable.
 465         ClaimableAwaitingConfirmations {
 466                 /// The amount available to claim, in satoshis, possibly excluding the on-chain fees which
 467                 /// were spent in broadcasting the transaction.
 468                 claimable_amount_satoshis: u64,
 469                 /// The height at which an [`Event::SpendableOutputs`] event will be generated for this
 470                 /// amount.
 471                 confirmation_height: u32,
 472         },
 473         /// The channel has been closed, and the given balance should be ours but awaiting spending
 474         /// transaction confirmation. If the spending transaction does not confirm in time, it is
 475         /// possible our counterparty can take the funds by broadcasting an HTLC timeout on-chain.
 476         ///
 477         /// Once the spending transaction confirms, before it has reached enough confirmations to be
 478         /// considered safe from chain reorganizations, the balance will instead be provided via
 479         /// [`Balance::ClaimableAwaitingConfirmations`].
 480         ContentiousClaimable {
 481                 /// The amount available to claim, in satoshis, excluding the on-chain fees which will be
 482                 /// required to do so.
 483                 claimable_amount_satoshis: u64,
 484                 /// The height at which the counterparty may be able to claim the balance if we have not
 485                 /// done so.
 486                 timeout_height: u32,
 487         },
 488         /// HTLCs which we sent to our counterparty which are claimable after a timeout (less on-chain
 489         /// fees) if the counterparty does not know the preimage for the HTLCs. These are somewhat
 490         /// likely to be claimed by our counterparty before we do.
 491         MaybeClaimableHTLCAwaitingTimeout {
 492                 /// The amount available to claim, in satoshis, excluding the on-chain fees which will be
 493                 /// required to do so.
 494                 claimable_amount_satoshis: u64,
 495                 /// The height at which we will be able to claim the balance if our counterparty has not
 496                 /// done so.
 497                 claimable_height: u32,
 498         },
 499 }
 500 use lightning::chain::channelmonitor::Balance as BalanceImport;
 501 pub(crate) type nativeBalance = BalanceImport;
 502
 503 impl Balance {
 504         #[allow(unused)]
 505         pub(crate) fn to_native(&self) -> nativeBalance {
 506                 match self {
 507                         Balance::ClaimableOnChannelClose {ref claimable_amount_satoshis, } => {
 508                                 let mut claimable_amount_satoshis_nonref = (*claimable_amount_satoshis).clone();
 509                                 nativeBalance::ClaimableOnChannelClose {
 510                                         claimable_amount_satoshis: claimable_amount_satoshis_nonref,
 511                                 }
 512                         },
 513                         Balance::ClaimableAwaitingConfirmations {ref claimable_amount_satoshis, ref confirmation_height, } => {
 514                                 let mut claimable_amount_satoshis_nonref = (*claimable_amount_satoshis).clone();
 515                                 let mut confirmation_height_nonref = (*confirmation_height).clone();
 516                                 nativeBalance::ClaimableAwaitingConfirmations {
 517                                         claimable_amount_satoshis: claimable_amount_satoshis_nonref,
 518                                         confirmation_height: confirmation_height_nonref,
 519                                 }
 520                         },
 521                         Balance::ContentiousClaimable {ref claimable_amount_satoshis, ref timeout_height, } => {
 522                                 let mut claimable_amount_satoshis_nonref = (*claimable_amount_satoshis).clone();
 523                                 let mut timeout_height_nonref = (*timeout_height).clone();
 524                                 nativeBalance::ContentiousClaimable {
 525                                         claimable_amount_satoshis: claimable_amount_satoshis_nonref,
 526                                         timeout_height: timeout_height_nonref,
 527                                 }
 528                         },
 529                         Balance::MaybeClaimableHTLCAwaitingTimeout {ref claimable_amount_satoshis, ref claimable_height, } => {
 530                                 let mut claimable_amount_satoshis_nonref = (*claimable_amount_satoshis).clone();
 531                                 let mut claimable_height_nonref = (*claimable_height).clone();
 532                                 nativeBalance::MaybeClaimableHTLCAwaitingTimeout {
 533                                         claimable_amount_satoshis: claimable_amount_satoshis_nonref,
 534                                         claimable_height: claimable_height_nonref,
 535                                 }
 536                         },
 537                 }
 538         }
 539         #[allow(unused)]
 540         pub(crate) fn into_native(self) -> nativeBalance {
 541                 match self {
 542                         Balance::ClaimableOnChannelClose {mut claimable_amount_satoshis, } => {
 543                                 nativeBalance::ClaimableOnChannelClose {
 544                                         claimable_amount_satoshis: claimable_amount_satoshis,
 545                                 }
 546                         },
 547                         Balance::ClaimableAwaitingConfirmations {mut claimable_amount_satoshis, mut confirmation_height, } => {
 548                                 nativeBalance::ClaimableAwaitingConfirmations {
 549                                         claimable_amount_satoshis: claimable_amount_satoshis,
 550                                         confirmation_height: confirmation_height,
 551                                 }
 552                         },
 553                         Balance::ContentiousClaimable {mut claimable_amount_satoshis, mut timeout_height, } => {
 554                                 nativeBalance::ContentiousClaimable {
 555                                         claimable_amount_satoshis: claimable_amount_satoshis,
 556                                         timeout_height: timeout_height,
 557                                 }
 558                         },
 559                         Balance::MaybeClaimableHTLCAwaitingTimeout {mut claimable_amount_satoshis, mut claimable_height, } => {
 560                                 nativeBalance::MaybeClaimableHTLCAwaitingTimeout {
 561                                         claimable_amount_satoshis: claimable_amount_satoshis,
 562                                         claimable_height: claimable_height,
 563                                 }
 564                         },
 565                 }
 566         }
 567         #[allow(unused)]
 568         pub(crate) fn from_native(native: &nativeBalance) -> Self {
 569                 match native {
 570                         nativeBalance::ClaimableOnChannelClose {ref claimable_amount_satoshis, } => {
 571                                 let mut claimable_amount_satoshis_nonref = (*claimable_amount_satoshis).clone();
 572                                 Balance::ClaimableOnChannelClose {
 573                                         claimable_amount_satoshis: claimable_amount_satoshis_nonref,
 574                                 }
 575                         },
 576                         nativeBalance::ClaimableAwaitingConfirmations {ref claimable_amount_satoshis, ref confirmation_height, } => {
 577                                 let mut claimable_amount_satoshis_nonref = (*claimable_amount_satoshis).clone();
 578                                 let mut confirmation_height_nonref = (*confirmation_height).clone();
 579                                 Balance::ClaimableAwaitingConfirmations {
 580                                         claimable_amount_satoshis: claimable_amount_satoshis_nonref,
 581                                         confirmation_height: confirmation_height_nonref,
 582                                 }
 583                         },
 584                         nativeBalance::ContentiousClaimable {ref claimable_amount_satoshis, ref timeout_height, } => {
 585                                 let mut claimable_amount_satoshis_nonref = (*claimable_amount_satoshis).clone();
 586                                 let mut timeout_height_nonref = (*timeout_height).clone();
 587                                 Balance::ContentiousClaimable {
 588                                         claimable_amount_satoshis: claimable_amount_satoshis_nonref,
 589                                         timeout_height: timeout_height_nonref,
 590                                 }
 591                         },
 592                         nativeBalance::MaybeClaimableHTLCAwaitingTimeout {ref claimable_amount_satoshis, ref claimable_height, } => {
 593                                 let mut claimable_amount_satoshis_nonref = (*claimable_amount_satoshis).clone();
 594                                 let mut claimable_height_nonref = (*claimable_height).clone();
 595                                 Balance::MaybeClaimableHTLCAwaitingTimeout {
 596                                         claimable_amount_satoshis: claimable_amount_satoshis_nonref,
 597                                         claimable_height: claimable_height_nonref,
 598                                 }
 599                         },
 600                 }
 601         }
 602         #[allow(unused)]
 603         pub(crate) fn native_into(native: nativeBalance) -> Self {
 604                 match native {
 605                         nativeBalance::ClaimableOnChannelClose {mut claimable_amount_satoshis, } => {
 606                                 Balance::ClaimableOnChannelClose {
 607                                         claimable_amount_satoshis: claimable_amount_satoshis,
 608                                 }
 609                         },
 610                         nativeBalance::ClaimableAwaitingConfirmations {mut claimable_amount_satoshis, mut confirmation_height, } => {
 611                                 Balance::ClaimableAwaitingConfirmations {
 612                                         claimable_amount_satoshis: claimable_amount_satoshis,
 613                                         confirmation_height: confirmation_height,
 614                                 }
 615                         },
 616                         nativeBalance::ContentiousClaimable {mut claimable_amount_satoshis, mut timeout_height, } => {
 617                                 Balance::ContentiousClaimable {
 618                                         claimable_amount_satoshis: claimable_amount_satoshis,
 619                                         timeout_height: timeout_height,
 620                                 }
 621                         },
 622                         nativeBalance::MaybeClaimableHTLCAwaitingTimeout {mut claimable_amount_satoshis, mut claimable_height, } => {
 623                                 Balance::MaybeClaimableHTLCAwaitingTimeout {
 624                                         claimable_amount_satoshis: claimable_amount_satoshis,
 625                                         claimable_height: claimable_height,
 626                                 }
 627                         },
 628                 }
 629         }
 630 }
 631 /// Frees any resources used by the Balance
 632 #[no_mangle]
 633 pub extern "C" fn Balance_free(this_ptr: Balance) { }
 634 /// Creates a copy of the Balance
 635 #[no_mangle]
 636 pub extern "C" fn Balance_clone(orig: &Balance) -> Balance {
 637         orig.clone()
 638 }
 639 #[no_mangle]
 640 /// Utility method to constructs a new ClaimableOnChannelClose-variant Balance
 641 pub extern "C" fn Balance_claimable_on_channel_close(claimable_amount_satoshis: u64) -> Balance {
 642         Balance::ClaimableOnChannelClose {
 643                 claimable_amount_satoshis,
 644         }
 645 }
 646 #[no_mangle]
 647 /// Utility method to constructs a new ClaimableAwaitingConfirmations-variant Balance
 648 pub extern "C" fn Balance_claimable_awaiting_confirmations(claimable_amount_satoshis: u64, confirmation_height: u32) -> Balance {
 649         Balance::ClaimableAwaitingConfirmations {
 650                 claimable_amount_satoshis,
 651                 confirmation_height,
 652         }
 653 }
 654 #[no_mangle]
 655 /// Utility method to constructs a new ContentiousClaimable-variant Balance
 656 pub extern "C" fn Balance_contentious_claimable(claimable_amount_satoshis: u64, timeout_height: u32) -> Balance {
 657         Balance::ContentiousClaimable {
 658                 claimable_amount_satoshis,
 659                 timeout_height,
 660         }
 661 }
 662 #[no_mangle]
 663 /// Utility method to constructs a new MaybeClaimableHTLCAwaitingTimeout-variant Balance
 664 pub extern "C" fn Balance_maybe_claimable_htlcawaiting_timeout(claimable_amount_satoshis: u64, claimable_height: u32) -> Balance {
 665         Balance::MaybeClaimableHTLCAwaitingTimeout {
 666                 claimable_amount_satoshis,
 667                 claimable_height,
 668         }
 669 }
 670 /// Checks if two Balances contain equal inner contents.
 671 /// This ignores pointers and is_owned flags and looks at the values in fields.
 672 #[no_mangle]
 673 pub extern "C" fn Balance_eq(a: &Balance, b: &Balance) -> bool {
 674         if &a.to_native() == &b.to_native() { true } else { false }
 675 }
 676
 677 use lightning::chain::channelmonitor::ChannelMonitor as nativeChannelMonitorImport;
 678 pub(crate) type nativeChannelMonitor = nativeChannelMonitorImport<crate::lightning::chain::keysinterface::Sign>;
 679
 680 /// A ChannelMonitor handles chain events (blocks connected and disconnected) and generates
 681 /// on-chain transactions to ensure no loss of funds occurs.
 682 ///
 683 /// You MUST ensure that no ChannelMonitors for a given channel anywhere contain out-of-date
 684 /// information and are actively monitoring the chain.
 685 ///
 686 /// Pending Events or updated HTLCs which have not yet been read out by
 687 /// get_and_clear_pending_monitor_events or get_and_clear_pending_events are serialized to disk and
 688 /// reloaded at deserialize-time. Thus, you must ensure that, when handling events, all events
 689 /// gotten are fully handled before re-serializing the new state.
 690 ///
 691 /// Note that the deserializer is only implemented for (BlockHash, ChannelMonitor), which
 692 /// tells you the last block hash which was block_connect()ed. You MUST rescan any blocks along
 693 /// the \"reorg path\" (ie disconnecting blocks until you find a common ancestor from both the
 694 /// returned block hash and the the current chain and then reconnecting blocks to get to the
 695 /// best chain) upon deserializing the object!
 696 #[must_use]
 697 #[repr(C)]
 698 pub struct ChannelMonitor {
 699         /// A pointer to the opaque Rust object.
 700
 701         /// Nearly everywhere, inner must be non-null, however in places where
 702         /// the Rust equivalent takes an Option, it may be set to null to indicate None.
 703         pub inner: *mut nativeChannelMonitor,
 704         /// Indicates that this is the only struct which contains the same pointer.
 705
 706         /// Rust functions which take ownership of an object provided via an argument require
 707         /// this to be true and invalidate the object pointed to by inner.
 708         pub is_owned: bool,
 709 }
 710
 711 impl Drop for ChannelMonitor {
 712         fn drop(&mut self) {
 713                 if self.is_owned && !<*mut nativeChannelMonitor>::is_null(self.inner) {
 714                         let _ = unsafe { Box::from_raw(ObjOps::untweak_ptr(self.inner)) };
 715                 }
 716         }
 717 }
 718 /// Frees any resources used by the ChannelMonitor, if is_owned is set and inner is non-NULL.
 719 #[no_mangle]
 720 pub extern "C" fn ChannelMonitor_free(this_obj: ChannelMonitor) { }
 721 #[allow(unused)]
 722 /// Used only if an object of this type is returned as a trait impl by a method
 723 pub(crate) extern "C" fn ChannelMonitor_free_void(this_ptr: *mut c_void) {
 724         unsafe { let _ = Box::from_raw(this_ptr as *mut nativeChannelMonitor); }
 725 }
 726 #[allow(unused)]
 727 impl ChannelMonitor {
 728         pub(crate) fn get_native_ref(&self) -> &'static nativeChannelMonitor {
 729                 unsafe { &*ObjOps::untweak_ptr(self.inner) }
 730         }
 731         pub(crate) fn get_native_mut_ref(&self) -> &'static mut nativeChannelMonitor {
 732                 unsafe { &mut *ObjOps::untweak_ptr(self.inner) }
 733         }
 734         /// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy
 735         pub(crate) fn take_inner(mut self) -> *mut nativeChannelMonitor {
 736                 assert!(self.is_owned);
 737                 let ret = ObjOps::untweak_ptr(self.inner);
 738                 self.inner = core::ptr::null_mut();
 739                 ret
 740         }
 741 }
 742 #[no_mangle]
 743 /// Serialize the ChannelMonitor object into a byte array which can be read by ChannelMonitor_read
 744 pub extern "C" fn ChannelMonitor_write(obj: &crate::lightning::chain::channelmonitor::ChannelMonitor) -> crate::c_types::derived::CVec_u8Z {
 745         crate::c_types::serialize_obj(unsafe { &*obj }.get_native_ref())
 746 }
 747 #[no_mangle]
 748 pub(crate) extern "C" fn ChannelMonitor_write_void(obj: *const c_void) -> crate::c_types::derived::CVec_u8Z {
 749         crate::c_types::serialize_obj(unsafe { &*(obj as *const nativeChannelMonitor) })
 750 }
 751 /// Updates a ChannelMonitor on the basis of some new information provided by the Channel
 752 /// itself.
 753 ///
 754 /// panics if the given update is not the next update by update_id.
 755 #[must_use]
 756 #[no_mangle]
 757 pub extern "C" fn ChannelMonitor_update_monitor(this_arg: &crate::lightning::chain::channelmonitor::ChannelMonitor, updates: &crate::lightning::chain::channelmonitor::ChannelMonitorUpdate, broadcaster: &crate::lightning::chain::chaininterface::BroadcasterInterface, fee_estimator: &crate::lightning::chain::chaininterface::FeeEstimator, logger: &crate::lightning::util::logger::Logger) -> crate::c_types::derived::CResult_NoneNoneZ {
 758         let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.update_monitor(updates.get_native_ref(), broadcaster, fee_estimator, logger);
 759         let mut local_ret = match ret { Ok(mut o) => crate::c_types::CResultTempl::ok( { () /*o*/ }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { () /*e*/ }).into() };
 760         local_ret
 761 }
 762
 763 /// Gets the update_id from the latest ChannelMonitorUpdate which was applied to this
 764 /// ChannelMonitor.
 765 #[must_use]
 766 #[no_mangle]
 767 pub extern "C" fn ChannelMonitor_get_latest_update_id(this_arg: &crate::lightning::chain::channelmonitor::ChannelMonitor) -> u64 {
 768         let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.get_latest_update_id();
 769         ret
 770 }
 771
 772 /// Gets the funding transaction outpoint of the channel this ChannelMonitor is monitoring for.
 773 #[must_use]
 774 #[no_mangle]
 775 pub extern "C" fn ChannelMonitor_get_funding_txo(this_arg: &crate::lightning::chain::channelmonitor::ChannelMonitor) -> crate::c_types::derived::C2Tuple_OutPointScriptZ {
 776         let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.get_funding_txo();
 777         let (mut orig_ret_0, mut orig_ret_1) = ret; let mut local_ret = (crate::lightning::chain::transaction::OutPoint { inner: ObjOps::heap_alloc(orig_ret_0), is_owned: true }, orig_ret_1.into_bytes().into()).into();
 778         local_ret
 779 }
 780
 781 /// Gets a list of txids, with their output scripts (in the order they appear in the
 782 /// transaction), which we must learn about spends of via block_connected().
 783 #[must_use]
 784 #[no_mangle]
 785 pub extern "C" fn ChannelMonitor_get_outputs_to_watch(this_arg: &crate::lightning::chain::channelmonitor::ChannelMonitor) -> crate::c_types::derived::CVec_C2Tuple_TxidCVec_C2Tuple_u32ScriptZZZZ {
 786         let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.get_outputs_to_watch();
 787         let mut local_ret = Vec::new(); for mut item in ret.drain(..) { local_ret.push( { let (mut orig_ret_0_0, mut orig_ret_0_1) = item; let mut local_orig_ret_0_1 = Vec::new(); for mut item in orig_ret_0_1.drain(..) { local_orig_ret_0_1.push( { let (mut orig_orig_ret_0_1_0_0, mut orig_orig_ret_0_1_0_1) = item; let mut local_orig_ret_0_1_0 = (orig_orig_ret_0_1_0_0, orig_orig_ret_0_1_0_1.into_bytes().into()).into(); local_orig_ret_0_1_0 }); }; let mut local_ret_0 = (crate::c_types::ThirtyTwoBytes { data: orig_ret_0_0.into_inner() }, local_orig_ret_0_1.into()).into(); local_ret_0 }); };
 788         local_ret.into()
 789 }
 790
 791 /// Loads the funding txo and outputs to watch into the given `chain::Filter` by repeatedly
 792 /// calling `chain::Filter::register_output` and `chain::Filter::register_tx` until all outputs
 793 /// have been registered.
 794 #[no_mangle]
 795 pub extern "C" fn ChannelMonitor_load_outputs_to_watch(this_arg: &crate::lightning::chain::channelmonitor::ChannelMonitor, filter: &crate::lightning::chain::Filter) {
 796         unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.load_outputs_to_watch(filter)
 797 }
 798
 799 /// Get the list of HTLCs who's status has been updated on chain. This should be called by
 800 /// ChannelManager via [`chain::Watch::release_pending_monitor_events`].
 801 #[must_use]
 802 #[no_mangle]
 803 pub extern "C" fn ChannelMonitor_get_and_clear_pending_monitor_events(this_arg: &crate::lightning::chain::channelmonitor::ChannelMonitor) -> crate::c_types::derived::CVec_MonitorEventZ {
 804         let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.get_and_clear_pending_monitor_events();
 805         let mut local_ret = Vec::new(); for mut item in ret.drain(..) { local_ret.push( { crate::lightning::chain::channelmonitor::MonitorEvent::native_into(item) }); };
 806         local_ret.into()
 807 }
 808
 809 /// Gets the list of pending events which were generated by previous actions, clearing the list
 810 /// in the process.
 811 ///
 812 /// This is called by ChainMonitor::get_and_clear_pending_events() and is equivalent to
 813 /// EventsProvider::get_and_clear_pending_events() except that it requires &mut self as we do
 814 /// no internal locking in ChannelMonitors.
 815 #[must_use]
 816 #[no_mangle]
 817 pub extern "C" fn ChannelMonitor_get_and_clear_pending_events(this_arg: &crate::lightning::chain::channelmonitor::ChannelMonitor) -> crate::c_types::derived::CVec_EventZ {
 818         let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.get_and_clear_pending_events();
 819         let mut local_ret = Vec::new(); for mut item in ret.drain(..) { local_ret.push( { crate::lightning::util::events::Event::native_into(item) }); };
 820         local_ret.into()
 821 }
 822
 823 /// Used by ChannelManager deserialization to broadcast the latest holder state if its copy of
 824 /// the Channel was out-of-date. You may use it to get a broadcastable holder toxic tx in case of
 825 /// fallen-behind, i.e when receiving a channel_reestablish with a proof that our counterparty side knows
 826 /// a higher revocation secret than the holder commitment number we are aware of. Broadcasting these
 827 /// transactions are UNSAFE, as they allow counterparty side to punish you. Nevertheless you may want to
 828 /// broadcast them if counterparty don't close channel with his higher commitment transaction after a
 829 /// substantial amount of time (a month or even a year) to get back funds. Best may be to contact
 830 /// out-of-band the other node operator to coordinate with him if option is available to you.
 831 /// In any-case, choice is up to the user.
 832 #[must_use]
 833 #[no_mangle]
 834 pub extern "C" fn ChannelMonitor_get_latest_holder_commitment_txn(this_arg: &crate::lightning::chain::channelmonitor::ChannelMonitor, logger: &crate::lightning::util::logger::Logger) -> crate::c_types::derived::CVec_TransactionZ {
 835         let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.get_latest_holder_commitment_txn(logger);
 836         let mut local_ret = Vec::new(); for mut item in ret.drain(..) { local_ret.push( { crate::c_types::Transaction::from_bitcoin(&item) }); };
 837         local_ret.into()
 838 }
 839
 840 /// Processes transactions in a newly connected block, which may result in any of the following:
 841 /// - update the monitor's state against resolved HTLCs
 842 /// - punish the counterparty in the case of seeing a revoked commitment transaction
 843 /// - force close the channel and claim/timeout incoming/outgoing HTLCs if near expiration
 844 /// - detect settled outputs for later spending
 845 /// - schedule and bump any in-flight claims
 846 ///
 847 /// Returns any new outputs to watch from `txdata`; after called, these are also included in
 848 /// [`get_outputs_to_watch`].
 849 ///
 850 /// [`get_outputs_to_watch`]: #method.get_outputs_to_watch
 851 #[must_use]
 852 #[no_mangle]
 853 pub extern "C" fn ChannelMonitor_block_connected(this_arg: &crate::lightning::chain::channelmonitor::ChannelMonitor, header: *const [u8; 80], mut txdata: crate::c_types::derived::CVec_C2Tuple_usizeTransactionZZ, mut height: u32, mut broadcaster: crate::lightning::chain::chaininterface::BroadcasterInterface, mut fee_estimator: crate::lightning::chain::chaininterface::FeeEstimator, mut logger: crate::lightning::util::logger::Logger) -> crate::c_types::derived::CVec_TransactionOutputsZ {
 854         let mut local_txdata = Vec::new(); for mut item in txdata.into_rust().drain(..) { local_txdata.push( { let (mut orig_txdata_0_0, mut orig_txdata_0_1) = item.to_rust(); let mut local_txdata_0 = (orig_txdata_0_0, orig_txdata_0_1.into_bitcoin()); local_txdata_0 }); };
 855         let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.block_connected(&::bitcoin::consensus::encode::deserialize(unsafe { &*header }).unwrap(), &local_txdata.iter().map(|(a, b)| (*a, b)).collect::<Vec<_>>()[..], height, broadcaster, fee_estimator, logger);
 856         let mut local_ret = Vec::new(); for mut item in ret.drain(..) { local_ret.push( { let (mut orig_ret_0_0, mut orig_ret_0_1) = item; let mut local_orig_ret_0_1 = Vec::new(); for mut item in orig_ret_0_1.drain(..) { local_orig_ret_0_1.push( { let (mut orig_orig_ret_0_1_0_0, mut orig_orig_ret_0_1_0_1) = item; let mut local_orig_ret_0_1_0 = (orig_orig_ret_0_1_0_0, crate::c_types::TxOut::from_rust(orig_orig_ret_0_1_0_1)).into(); local_orig_ret_0_1_0 }); }; let mut local_ret_0 = (crate::c_types::ThirtyTwoBytes { data: orig_ret_0_0.into_inner() }, local_orig_ret_0_1.into()).into(); local_ret_0 }); };
 857         local_ret.into()
 858 }
 859
 860 /// Determines if the disconnected block contained any transactions of interest and updates
 861 /// appropriately.
 862 #[no_mangle]
 863 pub extern "C" fn ChannelMonitor_block_disconnected(this_arg: &crate::lightning::chain::channelmonitor::ChannelMonitor, header: *const [u8; 80], mut height: u32, mut broadcaster: crate::lightning::chain::chaininterface::BroadcasterInterface, mut fee_estimator: crate::lightning::chain::chaininterface::FeeEstimator, mut logger: crate::lightning::util::logger::Logger) {
 864         unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.block_disconnected(&::bitcoin::consensus::encode::deserialize(unsafe { &*header }).unwrap(), height, broadcaster, fee_estimator, logger)
 865 }
 866
 867 /// Processes transactions confirmed in a block with the given header and height, returning new
 868 /// outputs to watch. See [`block_connected`] for details.
 869 ///
 870 /// Used instead of [`block_connected`] by clients that are notified of transactions rather than
 871 /// blocks. See [`chain::Confirm`] for calling expectations.
 872 ///
 873 /// [`block_connected`]: Self::block_connected
 874 #[must_use]
 875 #[no_mangle]
 876 pub extern "C" fn ChannelMonitor_transactions_confirmed(this_arg: &crate::lightning::chain::channelmonitor::ChannelMonitor, header: *const [u8; 80], mut txdata: crate::c_types::derived::CVec_C2Tuple_usizeTransactionZZ, mut height: u32, mut broadcaster: crate::lightning::chain::chaininterface::BroadcasterInterface, mut fee_estimator: crate::lightning::chain::chaininterface::FeeEstimator, mut logger: crate::lightning::util::logger::Logger) -> crate::c_types::derived::CVec_TransactionOutputsZ {
 877         let mut local_txdata = Vec::new(); for mut item in txdata.into_rust().drain(..) { local_txdata.push( { let (mut orig_txdata_0_0, mut orig_txdata_0_1) = item.to_rust(); let mut local_txdata_0 = (orig_txdata_0_0, orig_txdata_0_1.into_bitcoin()); local_txdata_0 }); };
 878         let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.transactions_confirmed(&::bitcoin::consensus::encode::deserialize(unsafe { &*header }).unwrap(), &local_txdata.iter().map(|(a, b)| (*a, b)).collect::<Vec<_>>()[..], height, broadcaster, fee_estimator, logger);
 879         let mut local_ret = Vec::new(); for mut item in ret.drain(..) { local_ret.push( { let (mut orig_ret_0_0, mut orig_ret_0_1) = item; let mut local_orig_ret_0_1 = Vec::new(); for mut item in orig_ret_0_1.drain(..) { local_orig_ret_0_1.push( { let (mut orig_orig_ret_0_1_0_0, mut orig_orig_ret_0_1_0_1) = item; let mut local_orig_ret_0_1_0 = (orig_orig_ret_0_1_0_0, crate::c_types::TxOut::from_rust(orig_orig_ret_0_1_0_1)).into(); local_orig_ret_0_1_0 }); }; let mut local_ret_0 = (crate::c_types::ThirtyTwoBytes { data: orig_ret_0_0.into_inner() }, local_orig_ret_0_1.into()).into(); local_ret_0 }); };
 880         local_ret.into()
 881 }
 882
 883 /// Processes a transaction that was reorganized out of the chain.
 884 ///
 885 /// Used instead of [`block_disconnected`] by clients that are notified of transactions rather
 886 /// than blocks. See [`chain::Confirm`] for calling expectations.
 887 ///
 888 /// [`block_disconnected`]: Self::block_disconnected
 889 #[no_mangle]
 890 pub extern "C" fn ChannelMonitor_transaction_unconfirmed(this_arg: &crate::lightning::chain::channelmonitor::ChannelMonitor, txid: *const [u8; 32], mut broadcaster: crate::lightning::chain::chaininterface::BroadcasterInterface, mut fee_estimator: crate::lightning::chain::chaininterface::FeeEstimator, mut logger: crate::lightning::util::logger::Logger) {
 891         unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.transaction_unconfirmed(&::bitcoin::hash_types::Txid::from_slice(&unsafe { &*txid }[..]).unwrap(), broadcaster, fee_estimator, logger)
 892 }
 893
 894 /// Updates the monitor with the current best chain tip, returning new outputs to watch. See
 895 /// [`block_connected`] for details.
 896 ///
 897 /// Used instead of [`block_connected`] by clients that are notified of transactions rather than
 898 /// blocks. See [`chain::Confirm`] for calling expectations.
 899 ///
 900 /// [`block_connected`]: Self::block_connected
 901 #[must_use]
 902 #[no_mangle]
 903 pub extern "C" fn ChannelMonitor_best_block_updated(this_arg: &crate::lightning::chain::channelmonitor::ChannelMonitor, header: *const [u8; 80], mut height: u32, mut broadcaster: crate::lightning::chain::chaininterface::BroadcasterInterface, mut fee_estimator: crate::lightning::chain::chaininterface::FeeEstimator, mut logger: crate::lightning::util::logger::Logger) -> crate::c_types::derived::CVec_TransactionOutputsZ {
 904         let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.best_block_updated(&::bitcoin::consensus::encode::deserialize(unsafe { &*header }).unwrap(), height, broadcaster, fee_estimator, logger);
 905         let mut local_ret = Vec::new(); for mut item in ret.drain(..) { local_ret.push( { let (mut orig_ret_0_0, mut orig_ret_0_1) = item; let mut local_orig_ret_0_1 = Vec::new(); for mut item in orig_ret_0_1.drain(..) { local_orig_ret_0_1.push( { let (mut orig_orig_ret_0_1_0_0, mut orig_orig_ret_0_1_0_1) = item; let mut local_orig_ret_0_1_0 = (orig_orig_ret_0_1_0_0, crate::c_types::TxOut::from_rust(orig_orig_ret_0_1_0_1)).into(); local_orig_ret_0_1_0 }); }; let mut local_ret_0 = (crate::c_types::ThirtyTwoBytes { data: orig_ret_0_0.into_inner() }, local_orig_ret_0_1.into()).into(); local_ret_0 }); };
 906         local_ret.into()
 907 }
 908
 909 /// Returns the set of txids that should be monitored for re-organization out of the chain.
 910 #[must_use]
 911 #[no_mangle]
 912 pub extern "C" fn ChannelMonitor_get_relevant_txids(this_arg: &crate::lightning::chain::channelmonitor::ChannelMonitor) -> crate::c_types::derived::CVec_TxidZ {
 913         let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.get_relevant_txids();
 914         let mut local_ret = Vec::new(); for mut item in ret.drain(..) { local_ret.push( { crate::c_types::ThirtyTwoBytes { data: item.into_inner() } }); };
 915         local_ret.into()
 916 }
 917
 918 /// Gets the latest best block which was connected either via the [`chain::Listen`] or
 919 /// [`chain::Confirm`] interfaces.
 920 #[must_use]
 921 #[no_mangle]
 922 pub extern "C" fn ChannelMonitor_current_best_block(this_arg: &crate::lightning::chain::channelmonitor::ChannelMonitor) -> crate::lightning::chain::BestBlock {
 923         let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.current_best_block();
 924         crate::lightning::chain::BestBlock { inner: ObjOps::heap_alloc(ret), is_owned: true }
 925 }
 926
 927 /// Gets the balances in this channel which are either claimable by us if we were to
 928 /// force-close the channel now or which are claimable on-chain (possibly awaiting
 929 /// confirmation).
 930 ///
 931 /// Any balances in the channel which are available on-chain (excluding on-chain fees) are
 932 /// included here until an [`Event::SpendableOutputs`] event has been generated for the
 933 /// balance, or until our counterparty has claimed the balance and accrued several
 934 /// confirmations on the claim transaction.
 935 ///
 936 /// Note that the balances available when you or your counterparty have broadcasted revoked
 937 /// state(s) may not be fully captured here.
 938 ///
 939 /// See [`Balance`] for additional details on the types of claimable balances which
 940 /// may be returned here and their meanings.
 941 #[must_use]
 942 #[no_mangle]
 943 pub extern "C" fn ChannelMonitor_get_claimable_balances(this_arg: &crate::lightning::chain::channelmonitor::ChannelMonitor) -> crate::c_types::derived::CVec_BalanceZ {
 944         let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.get_claimable_balances();
 945         let mut local_ret = Vec::new(); for mut item in ret.drain(..) { local_ret.push( { crate::lightning::chain::channelmonitor::Balance::native_into(item) }); };
 946         local_ret.into()
 947 }
 948
 949 #[no_mangle]
 950 /// Read a C2Tuple_BlockHashChannelMonitorZ from a byte array, created by C2Tuple_BlockHashChannelMonitorZ_write
 951 pub extern "C" fn C2Tuple_BlockHashChannelMonitorZ_read(ser: crate::c_types::u8slice, arg: &crate::lightning::chain::keysinterface::KeysInterface) -> crate::c_types::derived::CResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ {
 952         let arg_conv = arg;
 953         let res: Result<(bitcoin::hash_types::BlockHash, lightning::chain::channelmonitor::ChannelMonitor<crate::lightning::chain::keysinterface::Sign>), lightning::ln::msgs::DecodeError> = crate::c_types::deserialize_obj_arg(ser, arg_conv);
 954         let mut local_res = match res { Ok(mut o) => crate::c_types::CResultTempl::ok( { let (mut orig_res_0_0, mut orig_res_0_1) = o; let mut local_res_0 = (crate::c_types::ThirtyTwoBytes { data: orig_res_0_0.into_inner() }, crate::lightning::chain::channelmonitor::ChannelMonitor { inner: ObjOps::heap_alloc(orig_res_0_1), is_owned: true }).into(); local_res_0 }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::lightning::ln::msgs::DecodeError { inner: ObjOps::heap_alloc(e), is_owned: true } }).into() };
 955         local_res
 956 }