/// then there is a risk of channels force-closing on startup when the manager realizes it's
/// outdated. However, as long as `ChannelMonitor` backups are sound, no funds besides those used
/// for unilateral chain closure fees are at risk.
+///BackgroundProcessor will immediately stop on drop. It should be stored until shutdown.
#[must_use]
#[repr(C)]
pub struct BackgroundProcessor {
impl Drop for BackgroundProcessor {
fn drop(&mut self) {
if self.is_owned && !<*mut nativeBackgroundProcessor>::is_null(self.inner) {
- let _ = unsafe { Box::from_raw(self.inner) };
+ let _ = unsafe { Box::from_raw(ObjOps::untweak_ptr(self.inner)) };
}
}
}
unsafe { let _ = Box::from_raw(this_ptr as *mut nativeBackgroundProcessor); }
}
#[allow(unused)]
-/// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy
impl BackgroundProcessor {
+ pub(crate) fn get_native_ref(&self) -> &'static nativeBackgroundProcessor {
+ unsafe { &*ObjOps::untweak_ptr(self.inner) }
+ }
+ pub(crate) fn get_native_mut_ref(&self) -> &'static mut nativeBackgroundProcessor {
+ unsafe { &mut *ObjOps::untweak_ptr(self.inner) }
+ }
+ /// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy
pub(crate) fn take_inner(mut self) -> *mut nativeBackgroundProcessor {
assert!(self.is_owned);
- let ret = self.inner;
+ let ret = ObjOps::untweak_ptr(self.inner);
self.inner = std::ptr::null_mut();
ret
}
}
unsafe impl Send for ChannelManagerPersister {}
unsafe impl Sync for ChannelManagerPersister {}
+#[no_mangle]
+pub(crate) extern "C" fn ChannelManagerPersister_clone_fields(orig: &ChannelManagerPersister) -> ChannelManagerPersister {
+ ChannelManagerPersister {
+ this_arg: orig.this_arg,
+ persist_manager: Clone::clone(&orig.persist_manager),
+ free: Clone::clone(&orig.free),
+ }
+}
use lightning_background_processor::ChannelManagerPersister as rustChannelManagerPersister;
impl rustChannelManagerPersister<crate::lightning::chain::keysinterface::Sign, crate::lightning::chain::Watch, crate::lightning::chain::chaininterface::BroadcasterInterface, crate::lightning::chain::keysinterface::KeysInterface, crate::lightning::chain::chaininterface::FeeEstimator, crate::lightning::util::logger::Logger> for ChannelManagerPersister {
fn persist_manager(&self, mut channel_manager: &lightning::ln::channelmanager::ChannelManager<crate::lightning::chain::keysinterface::Sign, crate::lightning::chain::Watch, crate::lightning::chain::chaininterface::BroadcasterInterface, crate::lightning::chain::keysinterface::KeysInterface, crate::lightning::chain::chaininterface::FeeEstimator, crate::lightning::util::logger::Logger>) -> Result<(), std::io::Error> {
- let mut ret = (self.persist_manager)(self.this_arg, &crate::lightning::ln::channelmanager::ChannelManager { inner: unsafe { (channel_manager as *const _) as *mut _ }, is_owned: false });
+ let mut ret = (self.persist_manager)(self.this_arg, &crate::lightning::ln::channelmanager::ChannelManager { inner: unsafe { ObjOps::nonnull_ptr_to_inner((channel_manager as *const _) as *mut _) }, is_owned: false });
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)) }).to_rust() })};
local_ret
}
}
}
}
-/// Start a background thread that takes care of responsibilities enumerated in the top-level
-/// documentation.
+/// Start a background thread that takes care of responsibilities enumerated in the [top-level
+/// documentation].
///
-/// If `persist_manager` returns an error, then this thread will return said error (and
-/// `start()` will need to be called again to restart the `BackgroundProcessor`). Users should
-/// wait on [`thread_handle`]'s `join()` method to be able to tell if and when an error is
-/// returned, or implement `persist_manager` such that an error is never returned to the
-/// `BackgroundProcessor`
+/// The thread runs indefinitely unless the object is dropped, [`stop`] is called, or
+/// `persist_manager` returns an error. In case of an error, the error is retrieved by calling
+/// either [`join`] or [`stop`].
+///
+/// Typically, users should either implement [`ChannelManagerPersister`] to never return an
+/// error or call [`join`] and handle any error that may arise. For the latter case, the
+/// `BackgroundProcessor` must be restarted by calling `start` again after handling the error.
///
/// `persist_manager` is responsible for writing out the [`ChannelManager`] to disk, and/or
/// uploading to one or more backup services. See [`ChannelManager::write`] for writing out a
/// [`ChannelManager`]. See [`FilesystemPersister::persist_manager`] for Rust-Lightning's
/// provided implementation.
///
-/// [`thread_handle`]: BackgroundProcessor::thread_handle
+/// [top-level documentation]: Self
+/// [`join`]: Self::join
+/// [`stop`]: Self::stop
/// [`ChannelManager`]: lightning::ln::channelmanager::ChannelManager
/// [`ChannelManager::write`]: lightning::ln::channelmanager::ChannelManager#impl-Writeable
/// [`FilesystemPersister::persist_manager`]: lightning_persister::FilesystemPersister::persist_manager
#[must_use]
#[no_mangle]
pub extern "C" fn BackgroundProcessor_start(mut persister: crate::lightning_background_processor::ChannelManagerPersister, mut event_handler: crate::lightning::util::events::EventHandler, chain_monitor: &crate::lightning::chain::chainmonitor::ChainMonitor, channel_manager: &crate::lightning::ln::channelmanager::ChannelManager, peer_manager: &crate::lightning::ln::peer_handler::PeerManager, mut logger: crate::lightning::util::logger::Logger) -> BackgroundProcessor {
- let mut ret = lightning_background_processor::BackgroundProcessor::start(persister, event_handler, unsafe { &*chain_monitor.inner }, unsafe { &*channel_manager.inner }, unsafe { &*peer_manager.inner }, logger);
- BackgroundProcessor { inner: Box::into_raw(Box::new(ret)), is_owned: true }
+ let mut ret = lightning_background_processor::BackgroundProcessor::start(persister, event_handler, chain_monitor.get_native_ref(), channel_manager.get_native_ref(), peer_manager.get_native_ref(), logger);
+ BackgroundProcessor { inner: ObjOps::heap_alloc(ret), is_owned: true }
+}
+
+/// Join `BackgroundProcessor`'s thread, returning any error that occurred while persisting
+/// [`ChannelManager`].
+///
+/// # Panics
+///
+/// This function panics if the background thread has panicked such as while persisting or
+/// handling events.
+///
+/// [`ChannelManager`]: lightning::ln::channelmanager::ChannelManager
+#[must_use]
+#[no_mangle]
+pub extern "C" fn BackgroundProcessor_join(mut this_arg: BackgroundProcessor) -> crate::c_types::derived::CResult_NoneErrorZ {
+ let mut ret = (*unsafe { Box::from_raw(this_arg.take_inner()) }).join();
+ let mut local_ret = match ret { Ok(mut o) => crate::c_types::CResultTempl::ok( { () /*o*/ }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::c_types::IOError::from_rust(e) }).into() };
+ local_ret
}
-/// Stop `BackgroundProcessor`'s thread.
+/// Stop `BackgroundProcessor`'s thread, returning any error that occurred while persisting
+/// [`ChannelManager`].
+///
+/// # Panics
+///
+/// This function panics if the background thread has panicked such as while persisting or
+/// handling events.
+///
+/// [`ChannelManager`]: lightning::ln::channelmanager::ChannelManager
#[must_use]
#[no_mangle]
pub extern "C" fn BackgroundProcessor_stop(mut this_arg: BackgroundProcessor) -> crate::c_types::derived::CResult_NoneErrorZ {
projects / ldk-c-bindings / blobdiff