_ Git - ldk-c-bindings/blob - lightning-c-bindings/src/lightning/util/sweep.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 //! This module contains an [`OutputSweeper`] utility that keeps track of
  10 //! [`SpendableOutputDescriptor`]s, i.e., persists them in a given [`KVStore`] and regularly retries
  11 //! sweeping them.
  12
  13 use alloc::str::FromStr;
  14 use alloc::string::String;
  15 use core::ffi::c_void;
  16 use core::convert::Infallible;
  17 use bitcoin::hashes::Hash;
  18 use crate::c_types::*;
  19 #[cfg(feature="no-std")]
  20 use alloc::{vec::Vec, boxed::Box};
  21
  22
  23 use lightning::util::sweep::TrackedSpendableOutput as nativeTrackedSpendableOutputImport;
  24 pub(crate) type nativeTrackedSpendableOutput = nativeTrackedSpendableOutputImport;
  25
  26 /// The state of a spendable output currently tracked by an [`OutputSweeper`].
  27 #[must_use]
  28 #[repr(C)]
  29 pub struct TrackedSpendableOutput {
  30         /// A pointer to the opaque Rust object.
  31
  32         /// Nearly everywhere, inner must be non-null, however in places where
  33         /// the Rust equivalent takes an Option, it may be set to null to indicate None.
  34         pub inner: *mut nativeTrackedSpendableOutput,
  35         /// Indicates that this is the only struct which contains the same pointer.
  36
  37         /// Rust functions which take ownership of an object provided via an argument require
  38         /// this to be true and invalidate the object pointed to by inner.
  39         pub is_owned: bool,
  40 }
  41
  42 impl Drop for TrackedSpendableOutput {
  43         fn drop(&mut self) {
  44                 if self.is_owned && !<*mut nativeTrackedSpendableOutput>::is_null(self.inner) {
  45                         let _ = unsafe { Box::from_raw(ObjOps::untweak_ptr(self.inner)) };
  46                 }
  47         }
  48 }
  49 /// Frees any resources used by the TrackedSpendableOutput, if is_owned is set and inner is non-NULL.
  50 #[no_mangle]
  51 pub extern "C" fn TrackedSpendableOutput_free(this_obj: TrackedSpendableOutput) { }
  52 #[allow(unused)]
  53 /// Used only if an object of this type is returned as a trait impl by a method
  54 pub(crate) extern "C" fn TrackedSpendableOutput_free_void(this_ptr: *mut c_void) {
  55         let _ = unsafe { Box::from_raw(this_ptr as *mut nativeTrackedSpendableOutput) };
  56 }
  57 #[allow(unused)]
  58 impl TrackedSpendableOutput {
  59         pub(crate) fn get_native_ref(&self) -> &'static nativeTrackedSpendableOutput {
  60                 unsafe { &*ObjOps::untweak_ptr(self.inner) }
  61         }
  62         pub(crate) fn get_native_mut_ref(&self) -> &'static mut nativeTrackedSpendableOutput {
  63                 unsafe { &mut *ObjOps::untweak_ptr(self.inner) }
  64         }
  65         /// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy
  66         pub(crate) fn take_inner(mut self) -> *mut nativeTrackedSpendableOutput {
  67                 assert!(self.is_owned);
  68                 let ret = ObjOps::untweak_ptr(self.inner);
  69                 self.inner = core::ptr::null_mut();
  70                 ret
  71         }
  72 }
  73 /// The tracked output descriptor.
  74 #[no_mangle]
  75 pub extern "C" fn TrackedSpendableOutput_get_descriptor(this_ptr: &TrackedSpendableOutput) -> crate::lightning::sign::SpendableOutputDescriptor {
  76         let mut inner_val = &mut this_ptr.get_native_mut_ref().descriptor;
  77         crate::lightning::sign::SpendableOutputDescriptor::from_native(inner_val)
  78 }
  79 /// The tracked output descriptor.
  80 #[no_mangle]
  81 pub extern "C" fn TrackedSpendableOutput_set_descriptor(this_ptr: &mut TrackedSpendableOutput, mut val: crate::lightning::sign::SpendableOutputDescriptor) {
  82         unsafe { &mut *ObjOps::untweak_ptr(this_ptr.inner) }.descriptor = val.into_native();
  83 }
  84 /// The channel this output belongs to.
  85 ///
  86 /// Will be `None` if no `channel_id` was given to [`OutputSweeper::track_spendable_outputs`]
  87 ///
  88 /// Note that the return value (or a relevant inner pointer) may be NULL or all-0s to represent None
  89 #[no_mangle]
  90 pub extern "C" fn TrackedSpendableOutput_get_channel_id(this_ptr: &TrackedSpendableOutput) -> crate::lightning::ln::types::ChannelId {
  91         let mut inner_val = &mut this_ptr.get_native_mut_ref().channel_id;
  92         let mut local_inner_val = crate::lightning::ln::types::ChannelId { inner: unsafe { (if inner_val.is_none() { core::ptr::null() } else { ObjOps::nonnull_ptr_to_inner( { (inner_val.as_ref().unwrap()) }) } as *const lightning::ln::types::ChannelId<>) as *mut _ }, is_owned: false };
  93         local_inner_val
  94 }
  95 /// The channel this output belongs to.
  96 ///
  97 /// Will be `None` if no `channel_id` was given to [`OutputSweeper::track_spendable_outputs`]
  98 ///
  99 /// Note that val (or a relevant inner pointer) may be NULL or all-0s to represent None
 100 #[no_mangle]
 101 pub extern "C" fn TrackedSpendableOutput_set_channel_id(this_ptr: &mut TrackedSpendableOutput, mut val: crate::lightning::ln::types::ChannelId) {
 102         let mut local_val = if val.inner.is_null() { None } else { Some( { *unsafe { Box::from_raw(val.take_inner()) } }) };
 103         unsafe { &mut *ObjOps::untweak_ptr(this_ptr.inner) }.channel_id = local_val;
 104 }
 105 /// The current status of the output spend.
 106 #[no_mangle]
 107 pub extern "C" fn TrackedSpendableOutput_get_status(this_ptr: &TrackedSpendableOutput) -> crate::lightning::util::sweep::OutputSpendStatus {
 108         let mut inner_val = &mut this_ptr.get_native_mut_ref().status;
 109         crate::lightning::util::sweep::OutputSpendStatus::from_native(inner_val)
 110 }
 111 /// The current status of the output spend.
 112 #[no_mangle]
 113 pub extern "C" fn TrackedSpendableOutput_set_status(this_ptr: &mut TrackedSpendableOutput, mut val: crate::lightning::util::sweep::OutputSpendStatus) {
 114         unsafe { &mut *ObjOps::untweak_ptr(this_ptr.inner) }.status = val.into_native();
 115 }
 116 /// Constructs a new TrackedSpendableOutput given each field
 117 ///
 118 /// Note that channel_id_arg (or a relevant inner pointer) may be NULL or all-0s to represent None
 119 #[must_use]
 120 #[no_mangle]
 121 pub extern "C" fn TrackedSpendableOutput_new(mut descriptor_arg: crate::lightning::sign::SpendableOutputDescriptor, mut channel_id_arg: crate::lightning::ln::types::ChannelId, mut status_arg: crate::lightning::util::sweep::OutputSpendStatus) -> TrackedSpendableOutput {
 122         let mut local_channel_id_arg = if channel_id_arg.inner.is_null() { None } else { Some( { *unsafe { Box::from_raw(channel_id_arg.take_inner()) } }) };
 123         TrackedSpendableOutput { inner: ObjOps::heap_alloc(nativeTrackedSpendableOutput {
 124                 descriptor: descriptor_arg.into_native(),
 125                 channel_id: local_channel_id_arg,
 126                 status: status_arg.into_native(),
 127         }), is_owned: true }
 128 }
 129 impl Clone for TrackedSpendableOutput {
 130         fn clone(&self) -> Self {
 131                 Self {
 132                         inner: if <*mut nativeTrackedSpendableOutput>::is_null(self.inner) { core::ptr::null_mut() } else {
 133                                 ObjOps::heap_alloc(unsafe { &*ObjOps::untweak_ptr(self.inner) }.clone()) },
 134                         is_owned: true,
 135                 }
 136         }
 137 }
 138 #[allow(unused)]
 139 /// Used only if an object of this type is returned as a trait impl by a method
 140 pub(crate) extern "C" fn TrackedSpendableOutput_clone_void(this_ptr: *const c_void) -> *mut c_void {
 141         Box::into_raw(Box::new(unsafe { (*(this_ptr as *const nativeTrackedSpendableOutput)).clone() })) as *mut c_void
 142 }
 143 #[no_mangle]
 144 /// Creates a copy of the TrackedSpendableOutput
 145 pub extern "C" fn TrackedSpendableOutput_clone(orig: &TrackedSpendableOutput) -> TrackedSpendableOutput {
 146         orig.clone()
 147 }
 148 /// Get a string which allows debug introspection of a TrackedSpendableOutput object
 149 pub extern "C" fn TrackedSpendableOutput_debug_str_void(o: *const c_void) -> Str {
 150         alloc::format!("{:?}", unsafe { o as *const crate::lightning::util::sweep::TrackedSpendableOutput }).into()}
 151 /// Checks if two TrackedSpendableOutputs contain equal inner contents.
 152 /// This ignores pointers and is_owned flags and looks at the values in fields.
 153 /// Two objects with NULL inner values will be considered "equal" here.
 154 #[no_mangle]
 155 pub extern "C" fn TrackedSpendableOutput_eq(a: &TrackedSpendableOutput, b: &TrackedSpendableOutput) -> bool {
 156         if a.inner == b.inner { return true; }
 157         if a.inner.is_null() || b.inner.is_null() { return false; }
 158         if a.get_native_ref() == b.get_native_ref() { true } else { false }
 159 }
 160 /// Returns whether the output is spent in the given transaction.
 161 #[must_use]
 162 #[no_mangle]
 163 pub extern "C" fn TrackedSpendableOutput_is_spent_in(this_arg: &crate::lightning::util::sweep::TrackedSpendableOutput, mut tx: crate::c_types::Transaction) -> bool {
 164         let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.is_spent_in(&tx.into_bitcoin());
 165         ret
 166 }
 167
 168 #[no_mangle]
 169 /// Serialize the TrackedSpendableOutput object into a byte array which can be read by TrackedSpendableOutput_read
 170 pub extern "C" fn TrackedSpendableOutput_write(obj: &crate::lightning::util::sweep::TrackedSpendableOutput) -> crate::c_types::derived::CVec_u8Z {
 171         crate::c_types::serialize_obj(unsafe { &*obj }.get_native_ref())
 172 }
 173 #[allow(unused)]
 174 pub(crate) extern "C" fn TrackedSpendableOutput_write_void(obj: *const c_void) -> crate::c_types::derived::CVec_u8Z {
 175         crate::c_types::serialize_obj(unsafe { &*(obj as *const nativeTrackedSpendableOutput) })
 176 }
 177 #[no_mangle]
 178 /// Read a TrackedSpendableOutput from a byte array, created by TrackedSpendableOutput_write
 179 pub extern "C" fn TrackedSpendableOutput_read(ser: crate::c_types::u8slice) -> crate::c_types::derived::CResult_TrackedSpendableOutputDecodeErrorZ {
 180         let res: Result<lightning::util::sweep::TrackedSpendableOutput, lightning::ln::msgs::DecodeError> = crate::c_types::deserialize_obj(ser);
 181         let mut local_res = match res { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::lightning::util::sweep::TrackedSpendableOutput { inner: ObjOps::heap_alloc(o), is_owned: true } }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::lightning::ln::msgs::DecodeError::native_into(e) }).into() };
 182         local_res
 183 }
 184 /// The current status of the output spend.
 185 #[derive(Clone)]
 186 #[must_use]
 187 #[repr(C)]
 188 pub enum OutputSpendStatus {
 189         /// The output is tracked but an initial spending transaction hasn't been generated and
 190         /// broadcasted yet.
 191         PendingInitialBroadcast {
 192                 /// The height at which we will first generate and broadcast a spending transaction.
 193                 delayed_until_height: crate::c_types::derived::COption_u32Z,
 194         },
 195         /// A transaction spending the output has been broadcasted but is pending its first confirmation on-chain.
 196         PendingFirstConfirmation {
 197                 /// The hash of the chain tip when we first broadcast a transaction spending this output.
 198                 first_broadcast_hash: crate::c_types::ThirtyTwoBytes,
 199                 /// The best height when we last broadcast a transaction spending this output.
 200                 latest_broadcast_height: u32,
 201                 /// The transaction spending this output we last broadcasted.
 202                 latest_spending_tx: crate::c_types::Transaction,
 203         },
 204         /// A transaction spending the output has been confirmed on-chain but will be tracked until it
 205         /// reaches [`ANTI_REORG_DELAY`] confirmations.
 206         PendingThresholdConfirmations {
 207                 /// The hash of the chain tip when we first broadcast a transaction spending this output.
 208                 first_broadcast_hash: crate::c_types::ThirtyTwoBytes,
 209                 /// The best height when we last broadcast a transaction spending this output.
 210                 latest_broadcast_height: u32,
 211                 /// The transaction spending this output we saw confirmed on-chain.
 212                 latest_spending_tx: crate::c_types::Transaction,
 213                 /// The height at which the spending transaction was confirmed.
 214                 confirmation_height: u32,
 215                 /// The hash of the block in which the spending transaction was confirmed.
 216                 confirmation_hash: crate::c_types::ThirtyTwoBytes,
 217         },
 218 }
 219 use lightning::util::sweep::OutputSpendStatus as OutputSpendStatusImport;
 220 pub(crate) type nativeOutputSpendStatus = OutputSpendStatusImport;
 221
 222 impl OutputSpendStatus {
 223         #[allow(unused)]
 224         pub(crate) fn to_native(&self) -> nativeOutputSpendStatus {
 225                 match self {
 226                         OutputSpendStatus::PendingInitialBroadcast {ref delayed_until_height, } => {
 227                                 let mut delayed_until_height_nonref = Clone::clone(delayed_until_height);
 228                                 let mut local_delayed_until_height_nonref = if delayed_until_height_nonref.is_some() { Some( { delayed_until_height_nonref.take() }) } else { None };
 229                                 nativeOutputSpendStatus::PendingInitialBroadcast {
 230                                         delayed_until_height: local_delayed_until_height_nonref,
 231                                 }
 232                         },
 233                         OutputSpendStatus::PendingFirstConfirmation {ref first_broadcast_hash, ref latest_broadcast_height, ref latest_spending_tx, } => {
 234                                 let mut first_broadcast_hash_nonref = Clone::clone(first_broadcast_hash);
 235                                 let mut latest_broadcast_height_nonref = Clone::clone(latest_broadcast_height);
 236                                 let mut latest_spending_tx_nonref = Clone::clone(latest_spending_tx);
 237                                 nativeOutputSpendStatus::PendingFirstConfirmation {
 238                                         first_broadcast_hash: ::bitcoin::hash_types::BlockHash::from_slice(&first_broadcast_hash_nonref.data[..]).unwrap(),
 239                                         latest_broadcast_height: latest_broadcast_height_nonref,
 240                                         latest_spending_tx: latest_spending_tx_nonref.into_bitcoin(),
 241                                 }
 242                         },
 243                         OutputSpendStatus::PendingThresholdConfirmations {ref first_broadcast_hash, ref latest_broadcast_height, ref latest_spending_tx, ref confirmation_height, ref confirmation_hash, } => {
 244                                 let mut first_broadcast_hash_nonref = Clone::clone(first_broadcast_hash);
 245                                 let mut latest_broadcast_height_nonref = Clone::clone(latest_broadcast_height);
 246                                 let mut latest_spending_tx_nonref = Clone::clone(latest_spending_tx);
 247                                 let mut confirmation_height_nonref = Clone::clone(confirmation_height);
 248                                 let mut confirmation_hash_nonref = Clone::clone(confirmation_hash);
 249                                 nativeOutputSpendStatus::PendingThresholdConfirmations {
 250                                         first_broadcast_hash: ::bitcoin::hash_types::BlockHash::from_slice(&first_broadcast_hash_nonref.data[..]).unwrap(),
 251                                         latest_broadcast_height: latest_broadcast_height_nonref,
 252                                         latest_spending_tx: latest_spending_tx_nonref.into_bitcoin(),
 253                                         confirmation_height: confirmation_height_nonref,
 254                                         confirmation_hash: ::bitcoin::hash_types::BlockHash::from_slice(&confirmation_hash_nonref.data[..]).unwrap(),
 255                                 }
 256                         },
 257                 }
 258         }
 259         #[allow(unused)]
 260         pub(crate) fn into_native(self) -> nativeOutputSpendStatus {
 261                 match self {
 262                         OutputSpendStatus::PendingInitialBroadcast {mut delayed_until_height, } => {
 263                                 let mut local_delayed_until_height = if delayed_until_height.is_some() { Some( { delayed_until_height.take() }) } else { None };
 264                                 nativeOutputSpendStatus::PendingInitialBroadcast {
 265                                         delayed_until_height: local_delayed_until_height,
 266                                 }
 267                         },
 268                         OutputSpendStatus::PendingFirstConfirmation {mut first_broadcast_hash, mut latest_broadcast_height, mut latest_spending_tx, } => {
 269                                 nativeOutputSpendStatus::PendingFirstConfirmation {
 270                                         first_broadcast_hash: ::bitcoin::hash_types::BlockHash::from_slice(&first_broadcast_hash.data[..]).unwrap(),
 271                                         latest_broadcast_height: latest_broadcast_height,
 272                                         latest_spending_tx: latest_spending_tx.into_bitcoin(),
 273                                 }
 274                         },
 275                         OutputSpendStatus::PendingThresholdConfirmations {mut first_broadcast_hash, mut latest_broadcast_height, mut latest_spending_tx, mut confirmation_height, mut confirmation_hash, } => {
 276                                 nativeOutputSpendStatus::PendingThresholdConfirmations {
 277                                         first_broadcast_hash: ::bitcoin::hash_types::BlockHash::from_slice(&first_broadcast_hash.data[..]).unwrap(),
 278                                         latest_broadcast_height: latest_broadcast_height,
 279                                         latest_spending_tx: latest_spending_tx.into_bitcoin(),
 280                                         confirmation_height: confirmation_height,
 281                                         confirmation_hash: ::bitcoin::hash_types::BlockHash::from_slice(&confirmation_hash.data[..]).unwrap(),
 282                                 }
 283                         },
 284                 }
 285         }
 286         #[allow(unused)]
 287         pub(crate) fn from_native(native: &OutputSpendStatusImport) -> Self {
 288                 let native = unsafe { &*(native as *const _ as *const c_void as *const nativeOutputSpendStatus) };
 289                 match native {
 290                         nativeOutputSpendStatus::PendingInitialBroadcast {ref delayed_until_height, } => {
 291                                 let mut delayed_until_height_nonref = Clone::clone(delayed_until_height);
 292                                 let mut local_delayed_until_height_nonref = if delayed_until_height_nonref.is_none() { crate::c_types::derived::COption_u32Z::None } else { crate::c_types::derived::COption_u32Z::Some( { delayed_until_height_nonref.unwrap() }) };
 293                                 OutputSpendStatus::PendingInitialBroadcast {
 294                                         delayed_until_height: local_delayed_until_height_nonref,
 295                                 }
 296                         },
 297                         nativeOutputSpendStatus::PendingFirstConfirmation {ref first_broadcast_hash, ref latest_broadcast_height, ref latest_spending_tx, } => {
 298                                 let mut first_broadcast_hash_nonref = Clone::clone(first_broadcast_hash);
 299                                 let mut latest_broadcast_height_nonref = Clone::clone(latest_broadcast_height);
 300                                 let mut latest_spending_tx_nonref = Clone::clone(latest_spending_tx);
 301                                 OutputSpendStatus::PendingFirstConfirmation {
 302                                         first_broadcast_hash: crate::c_types::ThirtyTwoBytes { data: *first_broadcast_hash_nonref.as_ref() },
 303                                         latest_broadcast_height: latest_broadcast_height_nonref,
 304                                         latest_spending_tx: crate::c_types::Transaction::from_bitcoin(&latest_spending_tx_nonref),
 305                                 }
 306                         },
 307                         nativeOutputSpendStatus::PendingThresholdConfirmations {ref first_broadcast_hash, ref latest_broadcast_height, ref latest_spending_tx, ref confirmation_height, ref confirmation_hash, } => {
 308                                 let mut first_broadcast_hash_nonref = Clone::clone(first_broadcast_hash);
 309                                 let mut latest_broadcast_height_nonref = Clone::clone(latest_broadcast_height);
 310                                 let mut latest_spending_tx_nonref = Clone::clone(latest_spending_tx);
 311                                 let mut confirmation_height_nonref = Clone::clone(confirmation_height);
 312                                 let mut confirmation_hash_nonref = Clone::clone(confirmation_hash);
 313                                 OutputSpendStatus::PendingThresholdConfirmations {
 314                                         first_broadcast_hash: crate::c_types::ThirtyTwoBytes { data: *first_broadcast_hash_nonref.as_ref() },
 315                                         latest_broadcast_height: latest_broadcast_height_nonref,
 316                                         latest_spending_tx: crate::c_types::Transaction::from_bitcoin(&latest_spending_tx_nonref),
 317                                         confirmation_height: confirmation_height_nonref,
 318                                         confirmation_hash: crate::c_types::ThirtyTwoBytes { data: *confirmation_hash_nonref.as_ref() },
 319                                 }
 320                         },
 321                 }
 322         }
 323         #[allow(unused)]
 324         pub(crate) fn native_into(native: nativeOutputSpendStatus) -> Self {
 325                 match native {
 326                         nativeOutputSpendStatus::PendingInitialBroadcast {mut delayed_until_height, } => {
 327                                 let mut local_delayed_until_height = if delayed_until_height.is_none() { crate::c_types::derived::COption_u32Z::None } else { crate::c_types::derived::COption_u32Z::Some( { delayed_until_height.unwrap() }) };
 328                                 OutputSpendStatus::PendingInitialBroadcast {
 329                                         delayed_until_height: local_delayed_until_height,
 330                                 }
 331                         },
 332                         nativeOutputSpendStatus::PendingFirstConfirmation {mut first_broadcast_hash, mut latest_broadcast_height, mut latest_spending_tx, } => {
 333                                 OutputSpendStatus::PendingFirstConfirmation {
 334                                         first_broadcast_hash: crate::c_types::ThirtyTwoBytes { data: *first_broadcast_hash.as_ref() },
 335                                         latest_broadcast_height: latest_broadcast_height,
 336                                         latest_spending_tx: crate::c_types::Transaction::from_bitcoin(&latest_spending_tx),
 337                                 }
 338                         },
 339                         nativeOutputSpendStatus::PendingThresholdConfirmations {mut first_broadcast_hash, mut latest_broadcast_height, mut latest_spending_tx, mut confirmation_height, mut confirmation_hash, } => {
 340                                 OutputSpendStatus::PendingThresholdConfirmations {
 341                                         first_broadcast_hash: crate::c_types::ThirtyTwoBytes { data: *first_broadcast_hash.as_ref() },
 342                                         latest_broadcast_height: latest_broadcast_height,
 343                                         latest_spending_tx: crate::c_types::Transaction::from_bitcoin(&latest_spending_tx),
 344                                         confirmation_height: confirmation_height,
 345                                         confirmation_hash: crate::c_types::ThirtyTwoBytes { data: *confirmation_hash.as_ref() },
 346                                 }
 347                         },
 348                 }
 349         }
 350 }
 351 /// Frees any resources used by the OutputSpendStatus
 352 #[no_mangle]
 353 pub extern "C" fn OutputSpendStatus_free(this_ptr: OutputSpendStatus) { }
 354 /// Creates a copy of the OutputSpendStatus
 355 #[no_mangle]
 356 pub extern "C" fn OutputSpendStatus_clone(orig: &OutputSpendStatus) -> OutputSpendStatus {
 357         orig.clone()
 358 }
 359 #[allow(unused)]
 360 /// Used only if an object of this type is returned as a trait impl by a method
 361 pub(crate) extern "C" fn OutputSpendStatus_clone_void(this_ptr: *const c_void) -> *mut c_void {
 362         Box::into_raw(Box::new(unsafe { (*(this_ptr as *const OutputSpendStatus)).clone() })) as *mut c_void
 363 }
 364 #[allow(unused)]
 365 /// Used only if an object of this type is returned as a trait impl by a method
 366 pub(crate) extern "C" fn OutputSpendStatus_free_void(this_ptr: *mut c_void) {
 367         let _ = unsafe { Box::from_raw(this_ptr as *mut OutputSpendStatus) };
 368 }
 369 #[no_mangle]
 370 /// Utility method to constructs a new PendingInitialBroadcast-variant OutputSpendStatus
 371 pub extern "C" fn OutputSpendStatus_pending_initial_broadcast(delayed_until_height: crate::c_types::derived::COption_u32Z) -> OutputSpendStatus {
 372         OutputSpendStatus::PendingInitialBroadcast {
 373                 delayed_until_height,
 374         }
 375 }
 376 #[no_mangle]
 377 /// Utility method to constructs a new PendingFirstConfirmation-variant OutputSpendStatus
 378 pub extern "C" fn OutputSpendStatus_pending_first_confirmation(first_broadcast_hash: crate::c_types::ThirtyTwoBytes, latest_broadcast_height: u32, latest_spending_tx: crate::c_types::Transaction) -> OutputSpendStatus {
 379         OutputSpendStatus::PendingFirstConfirmation {
 380                 first_broadcast_hash,
 381                 latest_broadcast_height,
 382                 latest_spending_tx,
 383         }
 384 }
 385 #[no_mangle]
 386 /// Utility method to constructs a new PendingThresholdConfirmations-variant OutputSpendStatus
 387 pub extern "C" fn OutputSpendStatus_pending_threshold_confirmations(first_broadcast_hash: crate::c_types::ThirtyTwoBytes, latest_broadcast_height: u32, latest_spending_tx: crate::c_types::Transaction, confirmation_height: u32, confirmation_hash: crate::c_types::ThirtyTwoBytes) -> OutputSpendStatus {
 388         OutputSpendStatus::PendingThresholdConfirmations {
 389                 first_broadcast_hash,
 390                 latest_broadcast_height,
 391                 latest_spending_tx,
 392                 confirmation_height,
 393                 confirmation_hash,
 394         }
 395 }
 396 /// Get a string which allows debug introspection of a OutputSpendStatus object
 397 pub extern "C" fn OutputSpendStatus_debug_str_void(o: *const c_void) -> Str {
 398         alloc::format!("{:?}", unsafe { o as *const crate::lightning::util::sweep::OutputSpendStatus }).into()}
 399 /// Checks if two OutputSpendStatuss contain equal inner contents.
 400 /// This ignores pointers and is_owned flags and looks at the values in fields.
 401 #[no_mangle]
 402 pub extern "C" fn OutputSpendStatus_eq(a: &OutputSpendStatus, b: &OutputSpendStatus) -> bool {
 403         if &a.to_native() == &b.to_native() { true } else { false }
 404 }
 405 #[no_mangle]
 406 /// Serialize the OutputSpendStatus object into a byte array which can be read by OutputSpendStatus_read
 407 pub extern "C" fn OutputSpendStatus_write(obj: &crate::lightning::util::sweep::OutputSpendStatus) -> crate::c_types::derived::CVec_u8Z {
 408         crate::c_types::serialize_obj(&unsafe { &*obj }.to_native())
 409 }
 410 #[allow(unused)]
 411 pub(crate) extern "C" fn OutputSpendStatus_write_void(obj: *const c_void) -> crate::c_types::derived::CVec_u8Z {
 412         OutputSpendStatus_write(unsafe { &*(obj as *const OutputSpendStatus) })
 413 }
 414 #[no_mangle]
 415 /// Read a OutputSpendStatus from a byte array, created by OutputSpendStatus_write
 416 pub extern "C" fn OutputSpendStatus_read(ser: crate::c_types::u8slice) -> crate::c_types::derived::CResult_OutputSpendStatusDecodeErrorZ {
 417         let res: Result<lightning::util::sweep::OutputSpendStatus, lightning::ln::msgs::DecodeError> = crate::c_types::deserialize_obj(ser);
 418         let mut local_res = match res { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::lightning::util::sweep::OutputSpendStatus::native_into(o) }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::lightning::ln::msgs::DecodeError::native_into(e) }).into() };
 419         local_res
 420 }
 421
 422 use lightning::util::sweep::OutputSweeper as nativeOutputSweeperImport;
 423 pub(crate) type nativeOutputSweeper = nativeOutputSweeperImport<crate::lightning::chain::chaininterface::BroadcasterInterface, crate::lightning::sign::ChangeDestinationSource, crate::lightning::chain::chaininterface::FeeEstimator, crate::lightning::chain::Filter, crate::lightning::util::persist::KVStore, crate::lightning::util::logger::Logger, crate::lightning::sign::OutputSpender, >;
 424
 425 /// A utility that keeps track of [`SpendableOutputDescriptor`]s, persists them in a given
 426 /// [`KVStore`] and regularly retries sweeping them based on a callback given to the constructor
 427 /// methods.
 428 ///
 429 /// Users should call [`Self::track_spendable_outputs`] for any [`SpendableOutputDescriptor`]s received via [`Event::SpendableOutputs`].
 430 ///
 431 /// This needs to be notified of chain state changes either via its [`Listen`] or [`Confirm`]
 432 /// implementation and hence has to be connected with the utilized chain data sources.
 433 ///
 434 /// If chain data is provided via the [`Confirm`] interface or via filtered blocks, users are
 435 /// required to give their chain data sources (i.e., [`Filter`] implementation) to the respective
 436 /// constructor.
 437 ///
 438 /// [`Event::SpendableOutputs`]: crate::events::Event::SpendableOutputs
 439 #[must_use]
 440 #[repr(C)]
 441 pub struct OutputSweeper {
 442         /// A pointer to the opaque Rust object.
 443
 444         /// Nearly everywhere, inner must be non-null, however in places where
 445         /// the Rust equivalent takes an Option, it may be set to null to indicate None.
 446         pub inner: *mut nativeOutputSweeper,
 447         /// Indicates that this is the only struct which contains the same pointer.
 448
 449         /// Rust functions which take ownership of an object provided via an argument require
 450         /// this to be true and invalidate the object pointed to by inner.
 451         pub is_owned: bool,
 452 }
 453
 454 impl Drop for OutputSweeper {
 455         fn drop(&mut self) {
 456                 if self.is_owned && !<*mut nativeOutputSweeper>::is_null(self.inner) {
 457                         let _ = unsafe { Box::from_raw(ObjOps::untweak_ptr(self.inner)) };
 458                 }
 459         }
 460 }
 461 /// Frees any resources used by the OutputSweeper, if is_owned is set and inner is non-NULL.
 462 #[no_mangle]
 463 pub extern "C" fn OutputSweeper_free(this_obj: OutputSweeper) { }
 464 #[allow(unused)]
 465 /// Used only if an object of this type is returned as a trait impl by a method
 466 pub(crate) extern "C" fn OutputSweeper_free_void(this_ptr: *mut c_void) {
 467         let _ = unsafe { Box::from_raw(this_ptr as *mut nativeOutputSweeper) };
 468 }
 469 #[allow(unused)]
 470 impl OutputSweeper {
 471         pub(crate) fn get_native_ref(&self) -> &'static nativeOutputSweeper {
 472                 unsafe { &*ObjOps::untweak_ptr(self.inner) }
 473         }
 474         pub(crate) fn get_native_mut_ref(&self) -> &'static mut nativeOutputSweeper {
 475                 unsafe { &mut *ObjOps::untweak_ptr(self.inner) }
 476         }
 477         /// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy
 478         pub(crate) fn take_inner(mut self) -> *mut nativeOutputSweeper {
 479                 assert!(self.is_owned);
 480                 let ret = ObjOps::untweak_ptr(self.inner);
 481                 self.inner = core::ptr::null_mut();
 482                 ret
 483         }
 484 }
 485 /// Constructs a new [`OutputSweeper`].
 486 ///
 487 /// If chain data is provided via the [`Confirm`] interface or via filtered blocks, users also
 488 /// need to register their [`Filter`] implementation via the given `chain_data_source`.
 489 #[must_use]
 490 #[no_mangle]
 491 pub extern "C" fn OutputSweeper_new(mut best_block: crate::lightning::chain::BestBlock, mut broadcaster: crate::lightning::chain::chaininterface::BroadcasterInterface, mut fee_estimator: crate::lightning::chain::chaininterface::FeeEstimator, mut chain_data_source: crate::c_types::derived::COption_FilterZ, mut output_spender: crate::lightning::sign::OutputSpender, mut change_destination_source: crate::lightning::sign::ChangeDestinationSource, mut kv_store: crate::lightning::util::persist::KVStore, mut logger: crate::lightning::util::logger::Logger) -> crate::lightning::util::sweep::OutputSweeper {
 492         let mut local_chain_data_source = { /*chain_data_source*/ let chain_data_source_opt = chain_data_source; if chain_data_source_opt.is_none() { None } else { Some({ { { chain_data_source_opt.take() } }})} };
 493         let mut ret = lightning::util::sweep::OutputSweeper::new(*unsafe { Box::from_raw(best_block.take_inner()) }, broadcaster, fee_estimator, local_chain_data_source, output_spender, change_destination_source, kv_store, logger);
 494         crate::lightning::util::sweep::OutputSweeper { inner: ObjOps::heap_alloc(ret), is_owned: true }
 495 }
 496
 497 /// Tells the sweeper to track the given outputs descriptors.
 498 ///
 499 /// Usually, this should be called based on the values emitted by the
 500 /// [`Event::SpendableOutputs`].
 501 ///
 502 /// The given `exclude_static_outputs` flag controls whether the sweeper will filter out
 503 /// [`SpendableOutputDescriptor::StaticOutput`]s, which may be handled directly by the on-chain
 504 /// wallet implementation.
 505 ///
 506 /// If `delay_until_height` is set, we will delay the spending until the respective block
 507 /// height is reached. This can be used to batch spends, e.g., to reduce on-chain fees.
 508 ///
 509 /// Returns `Err` on persistence failure, in which case the call may be safely retried.
 510 ///
 511 /// [`Event::SpendableOutputs`]: crate::events::Event::SpendableOutputs
 512 ///
 513 /// Note that channel_id (or a relevant inner pointer) may be NULL or all-0s to represent None
 514 #[must_use]
 515 #[no_mangle]
 516 pub extern "C" fn OutputSweeper_track_spendable_outputs(this_arg: &crate::lightning::util::sweep::OutputSweeper, mut output_descriptors: crate::c_types::derived::CVec_SpendableOutputDescriptorZ, mut channel_id: crate::lightning::ln::types::ChannelId, mut exclude_static_outputs: bool, mut delay_until_height: crate::c_types::derived::COption_u32Z) -> crate::c_types::derived::CResult_NoneNoneZ {
 517         let mut local_output_descriptors = Vec::new(); for mut item in output_descriptors.into_rust().drain(..) { local_output_descriptors.push( { item.into_native() }); };
 518         let mut local_channel_id = if channel_id.inner.is_null() { None } else { Some( { *unsafe { Box::from_raw(channel_id.take_inner()) } }) };
 519         let mut local_delay_until_height = if delay_until_height.is_some() { Some( { delay_until_height.take() }) } else { None };
 520         let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.track_spendable_outputs(local_output_descriptors, local_channel_id, exclude_static_outputs, local_delay_until_height);
 521         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() };
 522         local_ret
 523 }
 524
 525 /// Returns a list of the currently tracked spendable outputs.
 526 #[must_use]
 527 #[no_mangle]
 528 pub extern "C" fn OutputSweeper_tracked_spendable_outputs(this_arg: &crate::lightning::util::sweep::OutputSweeper) -> crate::c_types::derived::CVec_TrackedSpendableOutputZ {
 529         let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.tracked_spendable_outputs();
 530         let mut local_ret = Vec::new(); for mut item in ret.drain(..) { local_ret.push( { crate::lightning::util::sweep::TrackedSpendableOutput { inner: ObjOps::heap_alloc(item), is_owned: true } }); };
 531         local_ret.into()
 532 }
 533
 534 /// Gets the latest best block which was connected either via the [`Listen`] or
 535 /// [`Confirm`] interfaces.
 536 #[must_use]
 537 #[no_mangle]
 538 pub extern "C" fn OutputSweeper_current_best_block(this_arg: &crate::lightning::util::sweep::OutputSweeper) -> crate::lightning::chain::BestBlock {
 539         let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.current_best_block();
 540         crate::lightning::chain::BestBlock { inner: ObjOps::heap_alloc(ret), is_owned: true }
 541 }
 542
 543 impl From<nativeOutputSweeper> for crate::lightning::chain::Listen {
 544         fn from(obj: nativeOutputSweeper) -> Self {
 545                 let rust_obj = crate::lightning::util::sweep::OutputSweeper { inner: ObjOps::heap_alloc(obj), is_owned: true };
 546                 let mut ret = OutputSweeper_as_Listen(&rust_obj);
 547                 // We want to free rust_obj when ret gets drop()'d, not rust_obj, so forget it and set ret's free() fn
 548                 core::mem::forget(rust_obj);
 549                 ret.free = Some(OutputSweeper_free_void);
 550                 ret
 551         }
 552 }
 553 /// Constructs a new Listen which calls the relevant methods on this_arg.
 554 /// This copies the `inner` pointer in this_arg and thus the returned Listen must be freed before this_arg is
 555 #[no_mangle]
 556 pub extern "C" fn OutputSweeper_as_Listen(this_arg: &OutputSweeper) -> crate::lightning::chain::Listen {
 557         crate::lightning::chain::Listen {
 558                 this_arg: unsafe { ObjOps::untweak_ptr((*this_arg).inner) as *mut c_void },
 559                 free: None,
 560                 filtered_block_connected: OutputSweeper_Listen_filtered_block_connected,
 561                 block_connected: OutputSweeper_Listen_block_connected,
 562                 block_disconnected: OutputSweeper_Listen_block_disconnected,
 563         }
 564 }
 565
 566 extern "C" fn OutputSweeper_Listen_filtered_block_connected(this_arg: *const c_void, header: *const [u8; 80], mut txdata: crate::c_types::derived::CVec_C2Tuple_usizeTransactionZZ, mut height: u32) {
 567         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 }); };
 568         <nativeOutputSweeper as lightning::chain::Listen>::filtered_block_connected(unsafe { &mut *(this_arg as *mut nativeOutputSweeper) }, &::bitcoin::consensus::encode::deserialize(unsafe { &*header }).unwrap(), &local_txdata.iter().map(|(a, b)| (*a, b)).collect::<Vec<_>>()[..], height)
 569 }
 570 extern "C" fn OutputSweeper_Listen_block_connected(this_arg: *const c_void, mut block: crate::c_types::u8slice, mut height: u32) {
 571         <nativeOutputSweeper as lightning::chain::Listen>::block_connected(unsafe { &mut *(this_arg as *mut nativeOutputSweeper) }, &::bitcoin::consensus::encode::deserialize(block.to_slice()).unwrap(), height)
 572 }
 573 extern "C" fn OutputSweeper_Listen_block_disconnected(this_arg: *const c_void, header: *const [u8; 80], mut height: u32) {
 574         <nativeOutputSweeper as lightning::chain::Listen>::block_disconnected(unsafe { &mut *(this_arg as *mut nativeOutputSweeper) }, &::bitcoin::consensus::encode::deserialize(unsafe { &*header }).unwrap(), height)
 575 }
 576
 577 impl From<nativeOutputSweeper> for crate::lightning::chain::Confirm {
 578         fn from(obj: nativeOutputSweeper) -> Self {
 579                 let rust_obj = crate::lightning::util::sweep::OutputSweeper { inner: ObjOps::heap_alloc(obj), is_owned: true };
 580                 let mut ret = OutputSweeper_as_Confirm(&rust_obj);
 581                 // We want to free rust_obj when ret gets drop()'d, not rust_obj, so forget it and set ret's free() fn
 582                 core::mem::forget(rust_obj);
 583                 ret.free = Some(OutputSweeper_free_void);
 584                 ret
 585         }
 586 }
 587 /// Constructs a new Confirm which calls the relevant methods on this_arg.
 588 /// This copies the `inner` pointer in this_arg and thus the returned Confirm must be freed before this_arg is
 589 #[no_mangle]
 590 pub extern "C" fn OutputSweeper_as_Confirm(this_arg: &OutputSweeper) -> crate::lightning::chain::Confirm {
 591         crate::lightning::chain::Confirm {
 592                 this_arg: unsafe { ObjOps::untweak_ptr((*this_arg).inner) as *mut c_void },
 593                 free: None,
 594                 transactions_confirmed: OutputSweeper_Confirm_transactions_confirmed,
 595                 transaction_unconfirmed: OutputSweeper_Confirm_transaction_unconfirmed,
 596                 best_block_updated: OutputSweeper_Confirm_best_block_updated,
 597                 get_relevant_txids: OutputSweeper_Confirm_get_relevant_txids,
 598         }
 599 }
 600
 601 extern "C" fn OutputSweeper_Confirm_transactions_confirmed(this_arg: *const c_void, header: *const [u8; 80], mut txdata: crate::c_types::derived::CVec_C2Tuple_usizeTransactionZZ, mut height: u32) {
 602         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 }); };
 603         <nativeOutputSweeper as lightning::chain::Confirm>::transactions_confirmed(unsafe { &mut *(this_arg as *mut nativeOutputSweeper) }, &::bitcoin::consensus::encode::deserialize(unsafe { &*header }).unwrap(), &local_txdata.iter().map(|(a, b)| (*a, b)).collect::<Vec<_>>()[..], height)
 604 }
 605 extern "C" fn OutputSweeper_Confirm_transaction_unconfirmed(this_arg: *const c_void, txid: *const [u8; 32]) {
 606         <nativeOutputSweeper as lightning::chain::Confirm>::transaction_unconfirmed(unsafe { &mut *(this_arg as *mut nativeOutputSweeper) }, &::bitcoin::hash_types::Txid::from_slice(&unsafe { &*txid }[..]).unwrap())
 607 }
 608 extern "C" fn OutputSweeper_Confirm_best_block_updated(this_arg: *const c_void, header: *const [u8; 80], mut height: u32) {
 609         <nativeOutputSweeper as lightning::chain::Confirm>::best_block_updated(unsafe { &mut *(this_arg as *mut nativeOutputSweeper) }, &::bitcoin::consensus::encode::deserialize(unsafe { &*header }).unwrap(), height)
 610 }
 611 #[must_use]
 612 extern "C" fn OutputSweeper_Confirm_get_relevant_txids(this_arg: *const c_void) -> crate::c_types::derived::CVec_C3Tuple_ThirtyTwoBytesu32COption_ThirtyTwoBytesZZZ {
 613         let mut ret = <nativeOutputSweeper as lightning::chain::Confirm>::get_relevant_txids(unsafe { &mut *(this_arg as *mut nativeOutputSweeper) }, );
 614         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, mut orig_ret_0_2) = item; let mut local_orig_ret_0_2 = if orig_ret_0_2.is_none() { crate::c_types::derived::COption_ThirtyTwoBytesZ::None } else { crate::c_types::derived::COption_ThirtyTwoBytesZ::Some( { crate::c_types::ThirtyTwoBytes { data: *orig_ret_0_2.unwrap().as_ref() } }) }; let mut local_ret_0 = (crate::c_types::ThirtyTwoBytes { data: *orig_ret_0_0.as_ref() }, orig_ret_0_1, local_orig_ret_0_2).into(); local_ret_0 }); };
 615         local_ret.into()
 616 }
 617
 618 /// A `enum` signalling to the [`OutputSweeper`] that it should delay spending an output until a
 619 /// future block height is reached.
 620 #[derive(Clone)]
 621 #[must_use]
 622 #[repr(C)]
 623 pub enum SpendingDelay {
 624         /// A relative delay indicating we shouldn't spend the output before `cur_height + num_blocks`
 625         /// is reached.
 626         Relative {
 627                 /// The number of blocks until we'll generate and broadcast the spending transaction.
 628                 num_blocks: u32,
 629         },
 630         /// An absolute delay indicating we shouldn't spend the output before `height` is reached.
 631         Absolute {
 632                 /// The height at which we'll generate and broadcast the spending transaction.
 633                 height: u32,
 634         },
 635 }
 636 use lightning::util::sweep::SpendingDelay as SpendingDelayImport;
 637 pub(crate) type nativeSpendingDelay = SpendingDelayImport;
 638
 639 impl SpendingDelay {
 640         #[allow(unused)]
 641         pub(crate) fn to_native(&self) -> nativeSpendingDelay {
 642                 match self {
 643                         SpendingDelay::Relative {ref num_blocks, } => {
 644                                 let mut num_blocks_nonref = Clone::clone(num_blocks);
 645                                 nativeSpendingDelay::Relative {
 646                                         num_blocks: num_blocks_nonref,
 647                                 }
 648                         },
 649                         SpendingDelay::Absolute {ref height, } => {
 650                                 let mut height_nonref = Clone::clone(height);
 651                                 nativeSpendingDelay::Absolute {
 652                                         height: height_nonref,
 653                                 }
 654                         },
 655                 }
 656         }
 657         #[allow(unused)]
 658         pub(crate) fn into_native(self) -> nativeSpendingDelay {
 659                 match self {
 660                         SpendingDelay::Relative {mut num_blocks, } => {
 661                                 nativeSpendingDelay::Relative {
 662                                         num_blocks: num_blocks,
 663                                 }
 664                         },
 665                         SpendingDelay::Absolute {mut height, } => {
 666                                 nativeSpendingDelay::Absolute {
 667                                         height: height,
 668                                 }
 669                         },
 670                 }
 671         }
 672         #[allow(unused)]
 673         pub(crate) fn from_native(native: &SpendingDelayImport) -> Self {
 674                 let native = unsafe { &*(native as *const _ as *const c_void as *const nativeSpendingDelay) };
 675                 match native {
 676                         nativeSpendingDelay::Relative {ref num_blocks, } => {
 677                                 let mut num_blocks_nonref = Clone::clone(num_blocks);
 678                                 SpendingDelay::Relative {
 679                                         num_blocks: num_blocks_nonref,
 680                                 }
 681                         },
 682                         nativeSpendingDelay::Absolute {ref height, } => {
 683                                 let mut height_nonref = Clone::clone(height);
 684                                 SpendingDelay::Absolute {
 685                                         height: height_nonref,
 686                                 }
 687                         },
 688                 }
 689         }
 690         #[allow(unused)]
 691         pub(crate) fn native_into(native: nativeSpendingDelay) -> Self {
 692                 match native {
 693                         nativeSpendingDelay::Relative {mut num_blocks, } => {
 694                                 SpendingDelay::Relative {
 695                                         num_blocks: num_blocks,
 696                                 }
 697                         },
 698                         nativeSpendingDelay::Absolute {mut height, } => {
 699                                 SpendingDelay::Absolute {
 700                                         height: height,
 701                                 }
 702                         },
 703                 }
 704         }
 705 }
 706 /// Frees any resources used by the SpendingDelay
 707 #[no_mangle]
 708 pub extern "C" fn SpendingDelay_free(this_ptr: SpendingDelay) { }
 709 /// Creates a copy of the SpendingDelay
 710 #[no_mangle]
 711 pub extern "C" fn SpendingDelay_clone(orig: &SpendingDelay) -> SpendingDelay {
 712         orig.clone()
 713 }
 714 #[allow(unused)]
 715 /// Used only if an object of this type is returned as a trait impl by a method
 716 pub(crate) extern "C" fn SpendingDelay_clone_void(this_ptr: *const c_void) -> *mut c_void {
 717         Box::into_raw(Box::new(unsafe { (*(this_ptr as *const SpendingDelay)).clone() })) as *mut c_void
 718 }
 719 #[allow(unused)]
 720 /// Used only if an object of this type is returned as a trait impl by a method
 721 pub(crate) extern "C" fn SpendingDelay_free_void(this_ptr: *mut c_void) {
 722         let _ = unsafe { Box::from_raw(this_ptr as *mut SpendingDelay) };
 723 }
 724 #[no_mangle]
 725 /// Utility method to constructs a new Relative-variant SpendingDelay
 726 pub extern "C" fn SpendingDelay_relative(num_blocks: u32) -> SpendingDelay {
 727         SpendingDelay::Relative {
 728                 num_blocks,
 729         }
 730 }
 731 #[no_mangle]
 732 /// Utility method to constructs a new Absolute-variant SpendingDelay
 733 pub extern "C" fn SpendingDelay_absolute(height: u32) -> SpendingDelay {
 734         SpendingDelay::Absolute {
 735                 height,
 736         }
 737 }
 738 /// Get a string which allows debug introspection of a SpendingDelay object
 739 pub extern "C" fn SpendingDelay_debug_str_void(o: *const c_void) -> Str {
 740         alloc::format!("{:?}", unsafe { o as *const crate::lightning::util::sweep::SpendingDelay }).into()}
 741 #[no_mangle]
 742 /// Read a OutputSweeper from a byte array, created by OutputSweeper_write
 743 pub extern "C" fn OutputSweeper_read(ser: crate::c_types::u8slice, arg_a: crate::lightning::chain::chaininterface::BroadcasterInterface, arg_b: crate::lightning::chain::chaininterface::FeeEstimator, arg_c: crate::c_types::derived::COption_FilterZ, arg_d: crate::lightning::sign::OutputSpender, arg_e: crate::lightning::sign::ChangeDestinationSource, arg_f: crate::lightning::util::persist::KVStore, arg_g: crate::lightning::util::logger::Logger) -> crate::c_types::derived::CResult_OutputSweeperDecodeErrorZ {
 744         let arg_a_conv = arg_a;
 745         let arg_b_conv = arg_b;
 746         let mut local_arg_c = { /*arg_c*/ let arg_c_opt = arg_c; if arg_c_opt.is_none() { None } else { Some({ { { arg_c_opt.take() } }})} };
 747         let arg_c_conv = local_arg_c;
 748         let arg_d_conv = arg_d;
 749         let arg_e_conv = arg_e;
 750         let arg_f_conv = arg_f;
 751         let arg_g_conv = arg_g;
 752         let arg_conv = (arg_a_conv, arg_b_conv, arg_c_conv, arg_d_conv, arg_e_conv, arg_f_conv, arg_g_conv);
 753         let res: Result<lightning::util::sweep::OutputSweeper<crate::lightning::chain::chaininterface::BroadcasterInterface, crate::lightning::sign::ChangeDestinationSource, crate::lightning::chain::chaininterface::FeeEstimator, crate::lightning::chain::Filter, crate::lightning::util::persist::KVStore, crate::lightning::util::logger::Logger, crate::lightning::sign::OutputSpender>, lightning::ln::msgs::DecodeError> = crate::c_types::deserialize_obj_arg(ser, arg_conv);
 754         let mut local_res = match res { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::lightning::util::sweep::OutputSweeper { inner: ObjOps::heap_alloc(o), is_owned: true } }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::lightning::ln::msgs::DecodeError::native_into(e) }).into() };
 755         local_res
 756 }
 757 #[no_mangle]
 758 /// Read a C2Tuple_BestBlockOutputSweeperZ from a byte array, created by C2Tuple_BestBlockOutputSweeperZ_write
 759 pub extern "C" fn C2Tuple_BestBlockOutputSweeperZ_read(ser: crate::c_types::u8slice, arg_a: crate::lightning::chain::chaininterface::BroadcasterInterface, arg_b: crate::lightning::chain::chaininterface::FeeEstimator, arg_c: crate::c_types::derived::COption_FilterZ, arg_d: crate::lightning::sign::OutputSpender, arg_e: crate::lightning::sign::ChangeDestinationSource, arg_f: crate::lightning::util::persist::KVStore, arg_g: crate::lightning::util::logger::Logger) -> crate::c_types::derived::CResult_C2Tuple_BestBlockOutputSweeperZDecodeErrorZ {
 760         let arg_a_conv = arg_a;
 761         let arg_b_conv = arg_b;
 762         let mut local_arg_c = { /*arg_c*/ let arg_c_opt = arg_c; if arg_c_opt.is_none() { None } else { Some({ { { arg_c_opt.take() } }})} };
 763         let arg_c_conv = local_arg_c;
 764         let arg_d_conv = arg_d;
 765         let arg_e_conv = arg_e;
 766         let arg_f_conv = arg_f;
 767         let arg_g_conv = arg_g;
 768         let arg_conv = (arg_a_conv, arg_b_conv, arg_c_conv, arg_d_conv, arg_e_conv, arg_f_conv, arg_g_conv);
 769         let res: Result<(lightning::chain::BestBlock, lightning::util::sweep::OutputSweeper<crate::lightning::chain::chaininterface::BroadcasterInterface, crate::lightning::sign::ChangeDestinationSource, crate::lightning::chain::chaininterface::FeeEstimator, crate::lightning::chain::Filter, crate::lightning::util::persist::KVStore, crate::lightning::util::logger::Logger, crate::lightning::sign::OutputSpender>), lightning::ln::msgs::DecodeError> = crate::c_types::deserialize_obj_arg(ser, arg_conv);
 770         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::lightning::chain::BestBlock { inner: ObjOps::heap_alloc(orig_res_0_0), is_owned: true }, crate::lightning::util::sweep::OutputSweeper { 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::native_into(e) }).into() };
 771         local_res
 772 }