use crate::c_types::*;
pub mod chaininterface;
+pub mod chainmonitor;
+pub mod channelmonitor;
pub mod transaction;
pub mod keysinterface;
+/// An error when accessing the chain via [`Access`].
+///
+/// [`Access`]: trait.Access.html
+#[must_use]
+#[derive(Clone)]
+#[repr(C)]
+pub enum AccessError {
+ /// The requested chain is unknown.
+ UnknownChain,
+ /// The requested transaction doesn't exist or hasn't confirmed.
+ UnknownTx,
+}
+use lightning::chain::AccessError as nativeAccessError;
+impl AccessError {
+ #[allow(unused)]
+ pub(crate) fn to_native(&self) -> nativeAccessError {
+ match self {
+ AccessError::UnknownChain => nativeAccessError::UnknownChain,
+ AccessError::UnknownTx => nativeAccessError::UnknownTx,
+ }
+ }
+ #[allow(unused)]
+ pub(crate) fn into_native(self) -> nativeAccessError {
+ match self {
+ AccessError::UnknownChain => nativeAccessError::UnknownChain,
+ AccessError::UnknownTx => nativeAccessError::UnknownTx,
+ }
+ }
+ #[allow(unused)]
+ pub(crate) fn from_native(native: &nativeAccessError) -> Self {
+ match native {
+ nativeAccessError::UnknownChain => AccessError::UnknownChain,
+ nativeAccessError::UnknownTx => AccessError::UnknownTx,
+ }
+ }
+ #[allow(unused)]
+ pub(crate) fn native_into(native: nativeAccessError) -> Self {
+ match native {
+ nativeAccessError::UnknownChain => AccessError::UnknownChain,
+ nativeAccessError::UnknownTx => AccessError::UnknownTx,
+ }
+ }
+}
+/// The `Access` trait defines behavior for accessing chain data and state, such as blocks and
+/// UTXOs.
+#[repr(C)]
+pub struct Access {
+ pub this_arg: *mut c_void,
+ /// Returns the transaction output of a funding transaction encoded by [`short_channel_id`].
+ /// Returns an error if `genesis_hash` is for a different chain or if such a transaction output
+ /// is unknown.
+ ///
+ /// [`short_channel_id`]: https://github.com/lightningnetwork/lightning-rfc/blob/master/07-routing-gossip.md#definition-of-short_channel_id
+ #[must_use]
+ 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,
+ pub free: Option<extern "C" fn(this_arg: *mut c_void)>,
+}
+unsafe impl Send for Access {}
+unsafe impl Sync for Access {}
+
+use lightning::chain::Access as rustAccess;
+impl rustAccess for Access {
+ fn get_utxo(&self, genesis_hash: &bitcoin::hash_types::BlockHash, short_channel_id: u64) -> Result<bitcoin::blockdata::transaction::TxOut, lightning::chain::AccessError> {
+ let mut ret = (self.get_utxo)(self.this_arg, genesis_hash.as_inner(), short_channel_id);
+ let mut local_ret = match ret.result_ok { true => Ok( { (*unsafe { Box::from_raw(ret.contents.result.take_ptr()) }).into_rust() }), false => Err( { (*unsafe { Box::from_raw(ret.contents.err.take_ptr()) }).into_native() })};
+ local_ret
+ }
+}
+
+// We're essentially a pointer already, or at least a set of pointers, so allow us to be used
+// directly as a Deref trait in higher-level structs:
+impl std::ops::Deref for Access {
+ type Target = Self;
+ fn deref(&self) -> &Self {
+ self
+ }
+}
+/// Calls the free function if one is set
+#[no_mangle]
+pub extern "C" fn Access_free(this_ptr: Access) { }
+impl Drop for Access {
+ fn drop(&mut self) {
+ if let Some(f) = self.free {
+ f(self.this_arg);
+ }
+ }
+}
+/// The `Watch` trait defines behavior for watching on-chain activity pertaining to channels as
+/// blocks are connected and disconnected.
+///
+/// Each channel is associated with a [`ChannelMonitor`]. Implementations of this trait are
+/// responsible for maintaining a set of monitors such that they can be updated accordingly as
+/// channel state changes and HTLCs are resolved. See method documentation for specific
+/// requirements.
+///
+/// Implementations **must** ensure that updates are successfully applied and persisted upon method
+/// completion. If an update fails with a [`PermanentFailure`], then it must immediately shut down
+/// without taking any further action such as persisting the current state.
+///
+/// If an implementation maintains multiple instances of a channel's monitor (e.g., by storing
+/// backup copies), then it must ensure that updates are applied across all instances. Otherwise, it
+/// could result in a revoked transaction being broadcast, allowing the counterparty to claim all
+/// funds in the channel. See [`ChannelMonitorUpdateErr`] for more details about how to handle
+/// multiple instances.
+///
+/// [`ChannelMonitor`]: channelmonitor/struct.ChannelMonitor.html
+/// [`ChannelMonitorUpdateErr`]: channelmonitor/enum.ChannelMonitorUpdateErr.html
+/// [`PermanentFailure`]: channelmonitor/enum.ChannelMonitorUpdateErr.html#variant.PermanentFailure
+#[repr(C)]
+pub struct Watch {
+ pub this_arg: *mut c_void,
+ /// Watches a channel identified by `funding_txo` using `monitor`.
+ ///
+ /// Implementations are responsible for watching the chain for the funding transaction along
+ /// with any spends of outputs returned by [`get_outputs_to_watch`]. In practice, this means
+ /// calling [`block_connected`] and [`block_disconnected`] on the monitor.
+ ///
+ /// [`get_outputs_to_watch`]: channelmonitor/struct.ChannelMonitor.html#method.get_outputs_to_watch
+ /// [`block_connected`]: channelmonitor/struct.ChannelMonitor.html#method.block_connected
+ /// [`block_disconnected`]: channelmonitor/struct.ChannelMonitor.html#method.block_disconnected
+ #[must_use]
+ pub watch_channel: extern "C" fn (this_arg: *const c_void, funding_txo: crate::chain::transaction::OutPoint, monitor: crate::chain::channelmonitor::ChannelMonitor) -> crate::c_types::derived::CResult_NoneChannelMonitorUpdateErrZ,
+ /// Updates a channel identified by `funding_txo` by applying `update` to its monitor.
+ ///
+ /// Implementations must call [`update_monitor`] with the given update. See
+ /// [`ChannelMonitorUpdateErr`] for invariants around returning an error.
+ ///
+ /// [`update_monitor`]: channelmonitor/struct.ChannelMonitor.html#method.update_monitor
+ /// [`ChannelMonitorUpdateErr`]: channelmonitor/enum.ChannelMonitorUpdateErr.html
+ #[must_use]
+ pub update_channel: extern "C" fn (this_arg: *const c_void, funding_txo: crate::chain::transaction::OutPoint, update: crate::chain::channelmonitor::ChannelMonitorUpdate) -> crate::c_types::derived::CResult_NoneChannelMonitorUpdateErrZ,
+ /// Returns any monitor events since the last call. Subsequent calls must only return new
+ /// events.
+ #[must_use]
+ pub release_pending_monitor_events: extern "C" fn (this_arg: *const c_void) -> crate::c_types::derived::CVec_MonitorEventZ,
+ pub free: Option<extern "C" fn(this_arg: *mut c_void)>,
+}
+unsafe impl Send for Watch {}
+unsafe impl Sync for Watch {}
+
+use lightning::chain::Watch as rustWatch;
+impl rustWatch for Watch {
+ type Keys = crate::chain::keysinterface::ChannelKeys;
+ fn watch_channel(&self, funding_txo: lightning::chain::transaction::OutPoint, monitor: lightning::chain::channelmonitor::ChannelMonitor<Self::Keys>) -> Result<(), lightning::chain::channelmonitor::ChannelMonitorUpdateErr> {
+ let mut ret = (self.watch_channel)(self.this_arg, crate::chain::transaction::OutPoint { inner: Box::into_raw(Box::new(funding_txo)), is_owned: true }, crate::chain::channelmonitor::ChannelMonitor { inner: Box::into_raw(Box::new(monitor)), is_owned: true });
+ let mut local_ret = match ret.result_ok { true => Ok( { () /*(*unsafe { Box::from_raw(ret.contents.result.take_ptr()) })*/ }), false => Err( { (*unsafe { Box::from_raw(ret.contents.err.take_ptr()) }).into_native() })};
+ local_ret
+ }
+ fn update_channel(&self, funding_txo: lightning::chain::transaction::OutPoint, update: lightning::chain::channelmonitor::ChannelMonitorUpdate) -> Result<(), lightning::chain::channelmonitor::ChannelMonitorUpdateErr> {
+ let mut ret = (self.update_channel)(self.this_arg, crate::chain::transaction::OutPoint { inner: Box::into_raw(Box::new(funding_txo)), is_owned: true }, crate::chain::channelmonitor::ChannelMonitorUpdate { inner: Box::into_raw(Box::new(update)), is_owned: true });
+ let mut local_ret = match ret.result_ok { true => Ok( { () /*(*unsafe { Box::from_raw(ret.contents.result.take_ptr()) })*/ }), false => Err( { (*unsafe { Box::from_raw(ret.contents.err.take_ptr()) }).into_native() })};
+ local_ret
+ }
+ fn release_pending_monitor_events(&self) -> Vec<lightning::chain::channelmonitor::MonitorEvent> {
+ let mut ret = (self.release_pending_monitor_events)(self.this_arg);
+ let mut local_ret = Vec::new(); for mut item in ret.into_rust().drain(..) { local_ret.push( { *unsafe { Box::from_raw(item.take_ptr()) } }); };
+ local_ret
+ }
+}
+
+// We're essentially a pointer already, or at least a set of pointers, so allow us to be used
+// directly as a Deref trait in higher-level structs:
+impl std::ops::Deref for Watch {
+ type Target = Self;
+ fn deref(&self) -> &Self {
+ self
+ }
+}
+/// Calls the free function if one is set
+#[no_mangle]
+pub extern "C" fn Watch_free(this_ptr: Watch) { }
+impl Drop for Watch {
+ fn drop(&mut self) {
+ if let Some(f) = self.free {
+ f(self.this_arg);
+ }
+ }
+}
+/// The `Filter` trait defines behavior for indicating chain activity of interest pertaining to
+/// channels.
+///
+/// This is useful in order to have a [`Watch`] implementation convey to a chain source which
+/// transactions to be notified of. Notification may take the form of pre-filtering blocks or, in
+/// the case of [BIP 157]/[BIP 158], only fetching a block if the compact filter matches. If
+/// receiving full blocks from a chain source, any further filtering is unnecessary.
+///
+/// After an output has been registered, subsequent block retrievals from the chain source must not
+/// exclude any transactions matching the new criteria nor any in-block descendants of such
+/// transactions.
+///
+/// Note that use as part of a [`Watch`] implementation involves reentrancy. Therefore, the `Filter`
+/// should not block on I/O. Implementations should instead queue the newly monitored data to be
+/// processed later. Then, in order to block until the data has been processed, any `Watch`
+/// invocation that has called the `Filter` must return [`TemporaryFailure`].
+///
+/// [`Watch`]: trait.Watch.html
+/// [`TemporaryFailure`]: channelmonitor/enum.ChannelMonitorUpdateErr.html#variant.TemporaryFailure
+/// [BIP 157]: https://github.com/bitcoin/bips/blob/master/bip-0157.mediawiki
+/// [BIP 158]: https://github.com/bitcoin/bips/blob/master/bip-0158.mediawiki
+#[repr(C)]
+pub struct Filter {
+ pub this_arg: *mut c_void,
+ /// Registers interest in a transaction with `txid` and having an output with `script_pubkey` as
+ /// a spending condition.
+ pub register_tx: extern "C" fn (this_arg: *const c_void, txid: *const [u8; 32], script_pubkey: crate::c_types::u8slice),
+ /// Registers interest in spends of a transaction output identified by `outpoint` having
+ /// `script_pubkey` as the spending condition.
+ pub register_output: extern "C" fn (this_arg: *const c_void, outpoint: &crate::chain::transaction::OutPoint, script_pubkey: crate::c_types::u8slice),
+ pub free: Option<extern "C" fn(this_arg: *mut c_void)>,
+}
+unsafe impl Send for Filter {}
+unsafe impl Sync for Filter {}
+
+use lightning::chain::Filter as rustFilter;
+impl rustFilter for Filter {
+ fn register_tx(&self, txid: &bitcoin::hash_types::Txid, script_pubkey: &bitcoin::blockdata::script::Script) {
+ (self.register_tx)(self.this_arg, txid.as_inner(), crate::c_types::u8slice::from_slice(&script_pubkey[..]))
+ }
+ fn register_output(&self, outpoint: &lightning::chain::transaction::OutPoint, script_pubkey: &bitcoin::blockdata::script::Script) {
+ (self.register_output)(self.this_arg, &crate::chain::transaction::OutPoint { inner: unsafe { (outpoint as *const _) as *mut _ }, is_owned: false }, crate::c_types::u8slice::from_slice(&script_pubkey[..]))
+ }
+}
+
+// We're essentially a pointer already, or at least a set of pointers, so allow us to be used
+// directly as a Deref trait in higher-level structs:
+impl std::ops::Deref for Filter {
+ type Target = Self;
+ fn deref(&self) -> &Self {
+ self
+ }
+}
+/// Calls the free function if one is set
+#[no_mangle]
+pub extern "C" fn Filter_free(this_ptr: Filter) { }
+impl Drop for Filter {
+ fn drop(&mut self) {
+ if let Some(f) = self.free {
+ f(self.this_arg);
+ }
+ }
+}
projects / rust-lightning / blobdiff