1 // This file is Copyright its original authors, visible in version control
2 // history and in the source files from which this was generated.
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.
9 //! Structs and traits which allow other parts of rust-lightning to interact with the blockchain.
11 use std::str::FromStr;
13 use bitcoin::hashes::Hash;
14 use crate::c_types::*;
16 pub mod chaininterface;
18 pub mod channelmonitor;
20 pub mod keysinterface;
21 /// An error when accessing the chain via [`Access`].
25 pub enum AccessError {
26 /// The requested chain is unknown.
28 /// The requested transaction doesn't exist or hasn't confirmed.
31 use lightning::chain::AccessError as nativeAccessError;
34 pub(crate) fn to_native(&self) -> nativeAccessError {
36 AccessError::UnknownChain => nativeAccessError::UnknownChain,
37 AccessError::UnknownTx => nativeAccessError::UnknownTx,
41 pub(crate) fn into_native(self) -> nativeAccessError {
43 AccessError::UnknownChain => nativeAccessError::UnknownChain,
44 AccessError::UnknownTx => nativeAccessError::UnknownTx,
48 pub(crate) fn from_native(native: &nativeAccessError) -> Self {
50 nativeAccessError::UnknownChain => AccessError::UnknownChain,
51 nativeAccessError::UnknownTx => AccessError::UnknownTx,
55 pub(crate) fn native_into(native: nativeAccessError) -> Self {
57 nativeAccessError::UnknownChain => AccessError::UnknownChain,
58 nativeAccessError::UnknownTx => AccessError::UnknownTx,
62 /// Creates a copy of the AccessError
64 pub extern "C" fn AccessError_clone(orig: &AccessError) -> AccessError {
67 /// The `Access` trait defines behavior for accessing chain data and state, such as blocks and
71 /// An opaque pointer which is passed to your function implementations as an argument.
72 /// This has no meaning in the LDK, and can be NULL or any other value.
73 pub this_arg: *mut c_void,
74 /// Returns the transaction output of a funding transaction encoded by [`short_channel_id`].
75 /// Returns an error if `genesis_hash` is for a different chain or if such a transaction output
78 /// [`short_channel_id`]: https://github.com/lightningnetwork/lightning-rfc/blob/master/07-routing-gossip.md#definition-of-short_channel_id
80 pub get_utxo: extern "C" fn (this_arg: *const c_void, genesis_hash: *const [u8; 32], short_channel_id: u64) -> crate::c_types::derived::CResult_TxOutAccessErrorZ,
81 /// Frees any resources associated with this object given its this_arg pointer.
82 /// Does not need to free the outer struct containing function pointers and may be NULL is no resources need to be freed.
83 pub free: Option<extern "C" fn(this_arg: *mut c_void)>,
85 unsafe impl Send for Access {}
86 unsafe impl Sync for Access {}
88 use lightning::chain::Access as rustAccess;
89 impl rustAccess for Access {
90 fn get_utxo(&self, genesis_hash: &bitcoin::hash_types::BlockHash, short_channel_id: u64) -> Result<bitcoin::blockdata::transaction::TxOut, lightning::chain::AccessError> {
91 let mut ret = (self.get_utxo)(self.this_arg, genesis_hash.as_inner(), short_channel_id);
92 let mut local_ret = match ret.result_ok { true => Ok( { (*unsafe { Box::from_raw(<*mut _>::take_ptr(&mut ret.contents.result)) }).into_rust() }), false => Err( { (*unsafe { Box::from_raw(<*mut _>::take_ptr(&mut ret.contents.err)) }).into_native() })};
97 // We're essentially a pointer already, or at least a set of pointers, so allow us to be used
98 // directly as a Deref trait in higher-level structs:
99 impl std::ops::Deref for Access {
101 fn deref(&self) -> &Self {
105 /// Calls the free function if one is set
107 pub extern "C" fn Access_free(this_ptr: Access) { }
108 impl Drop for Access {
110 if let Some(f) = self.free {
115 /// The `Listen` trait is used to notify when blocks have been connected or disconnected from the
118 /// Useful when needing to replay chain data upon startup or as new chain events occur. Clients
119 /// sourcing chain data using a block-oriented API should prefer this interface over [`Confirm`].
120 /// Such clients fetch the entire header chain whereas clients using [`Confirm`] only fetch headers
124 /// An opaque pointer which is passed to your function implementations as an argument.
125 /// This has no meaning in the LDK, and can be NULL or any other value.
126 pub this_arg: *mut c_void,
127 /// Notifies the listener that a block was added at the given height.
128 pub block_connected: extern "C" fn (this_arg: *const c_void, block: crate::c_types::u8slice, height: u32),
129 /// Notifies the listener that a block was removed at the given height.
130 pub block_disconnected: extern "C" fn (this_arg: *const c_void, header: *const [u8; 80], height: u32),
131 /// Frees any resources associated with this object given its this_arg pointer.
132 /// Does not need to free the outer struct containing function pointers and may be NULL is no resources need to be freed.
133 pub free: Option<extern "C" fn(this_arg: *mut c_void)>,
136 use lightning::chain::Listen as rustListen;
137 impl rustListen for Listen {
138 fn block_connected(&self, block: &bitcoin::blockdata::block::Block, height: u32) {
139 let mut local_block = ::bitcoin::consensus::encode::serialize(block);
140 (self.block_connected)(self.this_arg, crate::c_types::u8slice::from_slice(&local_block), height)
142 fn block_disconnected(&self, header: &bitcoin::blockdata::block::BlockHeader, height: u32) {
143 let mut local_header = { let mut s = [0u8; 80]; s[..].copy_from_slice(&::bitcoin::consensus::encode::serialize(header)); s };
144 (self.block_disconnected)(self.this_arg, &local_header, height)
148 // We're essentially a pointer already, or at least a set of pointers, so allow us to be used
149 // directly as a Deref trait in higher-level structs:
150 impl std::ops::Deref for Listen {
152 fn deref(&self) -> &Self {
156 /// Calls the free function if one is set
158 pub extern "C" fn Listen_free(this_ptr: Listen) { }
159 impl Drop for Listen {
161 if let Some(f) = self.free {
166 /// The `Confirm` trait is used to notify when transactions have been confirmed on chain or
167 /// unconfirmed during a chain reorganization.
169 /// Clients sourcing chain data using a transaction-oriented API should prefer this interface over
170 /// [`Listen`]. For instance, an Electrum client may implement [`Filter`] by subscribing to activity
171 /// related to registered transactions and outputs. Upon notification, it would pass along the
172 /// matching transactions using this interface.
176 /// The intended use is as follows:
177 /// - Call [`transactions_confirmed`] to process any on-chain activity of interest.
178 /// - Call [`transaction_unconfirmed`] to process any transaction returned by [`get_relevant_txids`]
179 /// that has been reorganized out of the chain.
180 /// - Call [`best_block_updated`] whenever a new chain tip becomes available.
184 /// Clients must call these methods in chain order. Specifically:
185 /// - Transactions confirmed in a block must be given before transactions confirmed in a later
187 /// - Dependent transactions within the same block must be given in topological order, possibly in
189 /// - Unconfirmed transactions must be given after the original confirmations and before any
192 /// See individual method documentation for further details.
194 /// [`transactions_confirmed`]: Self::transactions_confirmed
195 /// [`transaction_unconfirmed`]: Self::transaction_unconfirmed
196 /// [`best_block_updated`]: Self::best_block_updated
197 /// [`get_relevant_txids`]: Self::get_relevant_txids
200 /// An opaque pointer which is passed to your function implementations as an argument.
201 /// This has no meaning in the LDK, and can be NULL or any other value.
202 pub this_arg: *mut c_void,
203 /// Processes transactions confirmed in a block with a given header and height.
205 /// Should be called for any transactions registered by [`Filter::register_tx`] or any
206 /// transactions spending an output registered by [`Filter::register_output`]. Such transactions
207 /// appearing in the same block do not need to be included in the same call; instead, multiple
208 /// calls with additional transactions may be made so long as they are made in [chain order].
210 /// May be called before or after [`best_block_updated`] for the corresponding block. However,
211 /// in the event of a chain reorganization, it must not be called with a `header` that is no
212 /// longer in the chain as of the last call to [`best_block_updated`].
214 /// [chain order]: Confirm#Order
215 /// [`best_block_updated`]: Self::best_block_updated
216 pub transactions_confirmed: extern "C" fn (this_arg: *const c_void, header: *const [u8; 80], txdata: crate::c_types::derived::CVec_C2Tuple_usizeTransactionZZ, height: u32),
217 /// Processes a transaction that is no longer confirmed as result of a chain reorganization.
219 /// Should be called for any transaction returned by [`get_relevant_txids`] if it has been
220 /// reorganized out of the best chain. Once called, the given transaction should not be returned
221 /// by [`get_relevant_txids`] unless it has been reconfirmed via [`transactions_confirmed`].
223 /// [`get_relevant_txids`]: Self::get_relevant_txids
224 /// [`transactions_confirmed`]: Self::transactions_confirmed
225 pub transaction_unconfirmed: extern "C" fn (this_arg: *const c_void, txid: *const [u8; 32]),
226 /// Processes an update to the best header connected at the given height.
228 /// Should be called when a new header is available but may be skipped for intermediary blocks
229 /// if they become available at the same time.
230 pub best_block_updated: extern "C" fn (this_arg: *const c_void, header: *const [u8; 80], height: u32),
231 /// Returns transactions that should be monitored for reorganization out of the chain.
233 /// Should include any transactions passed to [`transactions_confirmed`] that have insufficient
234 /// confirmations to be safe from a chain reorganization. Should not include any transactions
235 /// passed to [`transaction_unconfirmed`] unless later reconfirmed.
237 /// May be called to determine the subset of transactions that must still be monitored for
238 /// reorganization. Will be idempotent between calls but may change as a result of calls to the
239 /// other interface methods. Thus, this is useful to determine which transactions may need to be
240 /// given to [`transaction_unconfirmed`].
242 /// [`transactions_confirmed`]: Self::transactions_confirmed
243 /// [`transaction_unconfirmed`]: Self::transaction_unconfirmed
245 pub get_relevant_txids: extern "C" fn (this_arg: *const c_void) -> crate::c_types::derived::CVec_TxidZ,
246 /// Frees any resources associated with this object given its this_arg pointer.
247 /// Does not need to free the outer struct containing function pointers and may be NULL is no resources need to be freed.
248 pub free: Option<extern "C" fn(this_arg: *mut c_void)>,
251 use lightning::chain::Confirm as rustConfirm;
252 impl rustConfirm for Confirm {
253 fn transactions_confirmed(&self, header: &bitcoin::blockdata::block::BlockHeader, txdata: &lightning::chain::transaction::TransactionData, height: u32) {
254 let mut local_header = { let mut s = [0u8; 80]; s[..].copy_from_slice(&::bitcoin::consensus::encode::serialize(header)); s };
255 let mut local_txdata = Vec::new(); for item in txdata.iter() { local_txdata.push( { let (mut orig_txdata_0_0, mut orig_txdata_0_1) = *item; let mut local_txdata_0 = (orig_txdata_0_0, crate::c_types::Transaction::from_bitcoin(&orig_txdata_0_1)).into(); local_txdata_0 }); };
256 (self.transactions_confirmed)(self.this_arg, &local_header, local_txdata.into(), height)
258 fn transaction_unconfirmed(&self, txid: &bitcoin::hash_types::Txid) {
259 (self.transaction_unconfirmed)(self.this_arg, txid.as_inner())
261 fn best_block_updated(&self, header: &bitcoin::blockdata::block::BlockHeader, height: u32) {
262 let mut local_header = { let mut s = [0u8; 80]; s[..].copy_from_slice(&::bitcoin::consensus::encode::serialize(header)); s };
263 (self.best_block_updated)(self.this_arg, &local_header, height)
265 fn get_relevant_txids(&self) -> Vec<bitcoin::hash_types::Txid> {
266 let mut ret = (self.get_relevant_txids)(self.this_arg);
267 let mut local_ret = Vec::new(); for mut item in ret.into_rust().drain(..) { local_ret.push( { ::bitcoin::hash_types::Txid::from_slice(&item.data[..]).unwrap() }); };
272 // We're essentially a pointer already, or at least a set of pointers, so allow us to be used
273 // directly as a Deref trait in higher-level structs:
274 impl std::ops::Deref for Confirm {
276 fn deref(&self) -> &Self {
280 /// Calls the free function if one is set
282 pub extern "C" fn Confirm_free(this_ptr: Confirm) { }
283 impl Drop for Confirm {
285 if let Some(f) = self.free {
290 /// The `Watch` trait defines behavior for watching on-chain activity pertaining to channels as
291 /// blocks are connected and disconnected.
293 /// Each channel is associated with a [`ChannelMonitor`]. Implementations of this trait are
294 /// responsible for maintaining a set of monitors such that they can be updated accordingly as
295 /// channel state changes and HTLCs are resolved. See method documentation for specific
298 /// Implementations **must** ensure that updates are successfully applied and persisted upon method
299 /// completion. If an update fails with a [`PermanentFailure`], then it must immediately shut down
300 /// without taking any further action such as persisting the current state.
302 /// If an implementation maintains multiple instances of a channel's monitor (e.g., by storing
303 /// backup copies), then it must ensure that updates are applied across all instances. Otherwise, it
304 /// could result in a revoked transaction being broadcast, allowing the counterparty to claim all
305 /// funds in the channel. See [`ChannelMonitorUpdateErr`] for more details about how to handle
306 /// multiple instances.
308 /// [`ChannelMonitor`]: channelmonitor::ChannelMonitor
309 /// [`ChannelMonitorUpdateErr`]: channelmonitor::ChannelMonitorUpdateErr
310 /// [`PermanentFailure`]: channelmonitor::ChannelMonitorUpdateErr::PermanentFailure
313 /// An opaque pointer which is passed to your function implementations as an argument.
314 /// This has no meaning in the LDK, and can be NULL or any other value.
315 pub this_arg: *mut c_void,
316 /// Watches a channel identified by `funding_txo` using `monitor`.
318 /// Implementations are responsible for watching the chain for the funding transaction along
319 /// with any spends of outputs returned by [`get_outputs_to_watch`]. In practice, this means
320 /// calling [`block_connected`] and [`block_disconnected`] on the monitor.
322 /// [`get_outputs_to_watch`]: channelmonitor::ChannelMonitor::get_outputs_to_watch
323 /// [`block_connected`]: channelmonitor::ChannelMonitor::block_connected
324 /// [`block_disconnected`]: channelmonitor::ChannelMonitor::block_disconnected
326 pub watch_channel: extern "C" fn (this_arg: *const c_void, funding_txo: crate::lightning::chain::transaction::OutPoint, monitor: crate::lightning::chain::channelmonitor::ChannelMonitor) -> crate::c_types::derived::CResult_NoneChannelMonitorUpdateErrZ,
327 /// Updates a channel identified by `funding_txo` by applying `update` to its monitor.
329 /// Implementations must call [`update_monitor`] with the given update. See
330 /// [`ChannelMonitorUpdateErr`] for invariants around returning an error.
332 /// [`update_monitor`]: channelmonitor::ChannelMonitor::update_monitor
333 /// [`ChannelMonitorUpdateErr`]: channelmonitor::ChannelMonitorUpdateErr
335 pub update_channel: extern "C" fn (this_arg: *const c_void, funding_txo: crate::lightning::chain::transaction::OutPoint, update: crate::lightning::chain::channelmonitor::ChannelMonitorUpdate) -> crate::c_types::derived::CResult_NoneChannelMonitorUpdateErrZ,
336 /// Returns any monitor events since the last call. Subsequent calls must only return new
339 pub release_pending_monitor_events: extern "C" fn (this_arg: *const c_void) -> crate::c_types::derived::CVec_MonitorEventZ,
340 /// Frees any resources associated with this object given its this_arg pointer.
341 /// Does not need to free the outer struct containing function pointers and may be NULL is no resources need to be freed.
342 pub free: Option<extern "C" fn(this_arg: *mut c_void)>,
344 unsafe impl Send for Watch {}
345 unsafe impl Sync for Watch {}
347 use lightning::chain::Watch as rustWatch;
348 impl rustWatch<crate::lightning::chain::keysinterface::Sign> for Watch {
349 fn watch_channel(&self, funding_txo: lightning::chain::transaction::OutPoint, monitor: lightning::chain::channelmonitor::ChannelMonitor<crate::lightning::chain::keysinterface::Sign>) -> Result<(), lightning::chain::channelmonitor::ChannelMonitorUpdateErr> {
350 let mut ret = (self.watch_channel)(self.this_arg, crate::lightning::chain::transaction::OutPoint { inner: Box::into_raw(Box::new(funding_txo)), is_owned: true }, crate::lightning::chain::channelmonitor::ChannelMonitor { inner: Box::into_raw(Box::new(monitor)), is_owned: true });
351 let mut local_ret = match ret.result_ok { true => Ok( { () /*(*unsafe { Box::from_raw(<*mut _>::take_ptr(&mut ret.contents.result)) })*/ }), false => Err( { (*unsafe { Box::from_raw(<*mut _>::take_ptr(&mut ret.contents.err)) }).into_native() })};
354 fn update_channel(&self, funding_txo: lightning::chain::transaction::OutPoint, update: lightning::chain::channelmonitor::ChannelMonitorUpdate) -> Result<(), lightning::chain::channelmonitor::ChannelMonitorUpdateErr> {
355 let mut ret = (self.update_channel)(self.this_arg, crate::lightning::chain::transaction::OutPoint { inner: Box::into_raw(Box::new(funding_txo)), is_owned: true }, crate::lightning::chain::channelmonitor::ChannelMonitorUpdate { inner: Box::into_raw(Box::new(update)), is_owned: true });
356 let mut local_ret = match ret.result_ok { true => Ok( { () /*(*unsafe { Box::from_raw(<*mut _>::take_ptr(&mut ret.contents.result)) })*/ }), false => Err( { (*unsafe { Box::from_raw(<*mut _>::take_ptr(&mut ret.contents.err)) }).into_native() })};
359 fn release_pending_monitor_events(&self) -> Vec<lightning::chain::channelmonitor::MonitorEvent> {
360 let mut ret = (self.release_pending_monitor_events)(self.this_arg);
361 let mut local_ret = Vec::new(); for mut item in ret.into_rust().drain(..) { local_ret.push( { item.into_native() }); };
366 // We're essentially a pointer already, or at least a set of pointers, so allow us to be used
367 // directly as a Deref trait in higher-level structs:
368 impl std::ops::Deref for Watch {
370 fn deref(&self) -> &Self {
374 /// Calls the free function if one is set
376 pub extern "C" fn Watch_free(this_ptr: Watch) { }
377 impl Drop for Watch {
379 if let Some(f) = self.free {
384 /// The `Filter` trait defines behavior for indicating chain activity of interest pertaining to
387 /// This is useful in order to have a [`Watch`] implementation convey to a chain source which
388 /// transactions to be notified of. Notification may take the form of pre-filtering blocks or, in
389 /// the case of [BIP 157]/[BIP 158], only fetching a block if the compact filter matches. If
390 /// receiving full blocks from a chain source, any further filtering is unnecessary.
392 /// After an output has been registered, subsequent block retrievals from the chain source must not
393 /// exclude any transactions matching the new criteria nor any in-block descendants of such
396 /// Note that use as part of a [`Watch`] implementation involves reentrancy. Therefore, the `Filter`
397 /// should not block on I/O. Implementations should instead queue the newly monitored data to be
398 /// processed later. Then, in order to block until the data has been processed, any [`Watch`]
399 /// invocation that has called the `Filter` must return [`TemporaryFailure`].
401 /// [`TemporaryFailure`]: channelmonitor::ChannelMonitorUpdateErr::TemporaryFailure
402 /// [BIP 157]: https://github.com/bitcoin/bips/blob/master/bip-0157.mediawiki
403 /// [BIP 158]: https://github.com/bitcoin/bips/blob/master/bip-0158.mediawiki
406 /// An opaque pointer which is passed to your function implementations as an argument.
407 /// This has no meaning in the LDK, and can be NULL or any other value.
408 pub this_arg: *mut c_void,
409 /// Registers interest in a transaction with `txid` and having an output with `script_pubkey` as
410 /// a spending condition.
411 pub register_tx: extern "C" fn (this_arg: *const c_void, txid: *const [u8; 32], script_pubkey: crate::c_types::u8slice),
412 /// Registers interest in spends of a transaction output.
414 /// Optionally, when `output.block_hash` is set, should return any transaction spending the
415 /// output that is found in the corresponding block along with its index.
417 /// This return value is useful for Electrum clients in order to supply in-block descendant
418 /// transactions which otherwise were not included. This is not necessary for other clients if
419 /// such descendant transactions were already included (e.g., when a BIP 157 client provides the
422 pub register_output: extern "C" fn (this_arg: *const c_void, output: crate::lightning::chain::WatchedOutput) -> crate::c_types::derived::COption_C2Tuple_usizeTransactionZZ,
423 /// Frees any resources associated with this object given its this_arg pointer.
424 /// Does not need to free the outer struct containing function pointers and may be NULL is no resources need to be freed.
425 pub free: Option<extern "C" fn(this_arg: *mut c_void)>,
427 unsafe impl Send for Filter {}
428 unsafe impl Sync for Filter {}
430 use lightning::chain::Filter as rustFilter;
431 impl rustFilter for Filter {
432 fn register_tx(&self, txid: &bitcoin::hash_types::Txid, script_pubkey: &bitcoin::blockdata::script::Script) {
433 (self.register_tx)(self.this_arg, txid.as_inner(), crate::c_types::u8slice::from_slice(&script_pubkey[..]))
435 fn register_output(&self, output: lightning::chain::WatchedOutput) -> Option<(usize, bitcoin::blockdata::transaction::Transaction)> {
436 let mut ret = (self.register_output)(self.this_arg, crate::lightning::chain::WatchedOutput { inner: Box::into_raw(Box::new(output)), is_owned: true });
437 let mut local_ret = if ret.is_some() { Some( { let (mut orig_ret_0_0, mut orig_ret_0_1) = ret.take().to_rust(); let mut local_ret_0 = (orig_ret_0_0, orig_ret_0_1.into_bitcoin()); local_ret_0 }) } else { None };
442 // We're essentially a pointer already, or at least a set of pointers, so allow us to be used
443 // directly as a Deref trait in higher-level structs:
444 impl std::ops::Deref for Filter {
446 fn deref(&self) -> &Self {
450 /// Calls the free function if one is set
452 pub extern "C" fn Filter_free(this_ptr: Filter) { }
453 impl Drop for Filter {
455 if let Some(f) = self.free {
461 use lightning::chain::WatchedOutput as nativeWatchedOutputImport;
462 type nativeWatchedOutput = nativeWatchedOutputImport;
464 /// A transaction output watched by a [`ChannelMonitor`] for spends on-chain.
466 /// Used to convey to a [`Filter`] such an output with a given spending condition. Any transaction
467 /// spending the output must be given to [`ChannelMonitor::block_connected`] either directly or via
468 /// the return value of [`Filter::register_output`].
470 /// If `block_hash` is `Some`, this indicates the output was created in the corresponding block and
471 /// may have been spent there. See [`Filter::register_output`] for details.
473 /// [`ChannelMonitor`]: channelmonitor::ChannelMonitor
474 /// [`ChannelMonitor::block_connected`]: channelmonitor::ChannelMonitor::block_connected
477 pub struct WatchedOutput {
478 /// A pointer to the opaque Rust object.
480 /// Nearly everywhere, inner must be non-null, however in places where
481 /// the Rust equivalent takes an Option, it may be set to null to indicate None.
482 pub inner: *mut nativeWatchedOutput,
483 /// Indicates that this is the only struct which contains the same pointer.
485 /// Rust functions which take ownership of an object provided via an argument require
486 /// this to be true and invalidate the object pointed to by inner.
490 impl Drop for WatchedOutput {
492 if self.is_owned && !<*mut nativeWatchedOutput>::is_null(self.inner) {
493 let _ = unsafe { Box::from_raw(self.inner) };
497 /// Frees any resources used by the WatchedOutput, if is_owned is set and inner is non-NULL.
499 pub extern "C" fn WatchedOutput_free(this_obj: WatchedOutput) { }
501 /// Used only if an object of this type is returned as a trait impl by a method
502 extern "C" fn WatchedOutput_free_void(this_ptr: *mut c_void) {
503 unsafe { let _ = Box::from_raw(this_ptr as *mut nativeWatchedOutput); }
506 /// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy
508 pub(crate) fn take_inner(mut self) -> *mut nativeWatchedOutput {
509 assert!(self.is_owned);
510 let ret = self.inner;
511 self.inner = std::ptr::null_mut();
515 /// First block where the transaction output may have been spent.
517 pub extern "C" fn WatchedOutput_get_block_hash(this_ptr: &WatchedOutput) -> crate::c_types::ThirtyTwoBytes {
518 let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.block_hash;
519 let mut local_inner_val = if inner_val.is_none() { crate::c_types::ThirtyTwoBytes::null() } else { { crate::c_types::ThirtyTwoBytes { data: (inner_val.unwrap()).into_inner() } } };
522 /// First block where the transaction output may have been spent.
524 pub extern "C" fn WatchedOutput_set_block_hash(this_ptr: &mut WatchedOutput, mut val: crate::c_types::ThirtyTwoBytes) {
525 let mut local_val = if val.data == [0; 32] { None } else { Some( { ::bitcoin::hash_types::BlockHash::from_slice(&val.data[..]).unwrap() }) };
526 unsafe { &mut *this_ptr.inner }.block_hash = local_val;
528 /// Outpoint identifying the transaction output.
530 pub extern "C" fn WatchedOutput_get_outpoint(this_ptr: &WatchedOutput) -> crate::lightning::chain::transaction::OutPoint {
531 let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.outpoint;
532 crate::lightning::chain::transaction::OutPoint { inner: unsafe { ( (&(*inner_val) as *const _) as *mut _) }, is_owned: false }
534 /// Outpoint identifying the transaction output.
536 pub extern "C" fn WatchedOutput_set_outpoint(this_ptr: &mut WatchedOutput, mut val: crate::lightning::chain::transaction::OutPoint) {
537 unsafe { &mut *this_ptr.inner }.outpoint = *unsafe { Box::from_raw(val.take_inner()) };
539 /// Spending condition of the transaction output.
541 pub extern "C" fn WatchedOutput_get_script_pubkey(this_ptr: &WatchedOutput) -> crate::c_types::u8slice {
542 let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.script_pubkey;
543 crate::c_types::u8slice::from_slice(&inner_val[..])
545 /// Spending condition of the transaction output.
547 pub extern "C" fn WatchedOutput_set_script_pubkey(this_ptr: &mut WatchedOutput, mut val: crate::c_types::derived::CVec_u8Z) {
548 unsafe { &mut *this_ptr.inner }.script_pubkey = ::bitcoin::blockdata::script::Script::from(val.into_rust());
550 /// Constructs a new WatchedOutput given each field
553 pub extern "C" fn WatchedOutput_new(mut block_hash_arg: crate::c_types::ThirtyTwoBytes, mut outpoint_arg: crate::lightning::chain::transaction::OutPoint, mut script_pubkey_arg: crate::c_types::derived::CVec_u8Z) -> WatchedOutput {
554 let mut local_block_hash_arg = if block_hash_arg.data == [0; 32] { None } else { Some( { ::bitcoin::hash_types::BlockHash::from_slice(&block_hash_arg.data[..]).unwrap() }) };
555 WatchedOutput { inner: Box::into_raw(Box::new(nativeWatchedOutput {
556 block_hash: local_block_hash_arg,
557 outpoint: *unsafe { Box::from_raw(outpoint_arg.take_inner()) },
558 script_pubkey: ::bitcoin::blockdata::script::Script::from(script_pubkey_arg.into_rust()),
559 })), is_owned: true }