+/// A handler provided to [`PeerManager`] for reading and handling custom messages.
+///
+/// [BOLT 1] specifies a custom message type range for use with experimental or application-specific
+/// messages. `CustomMessageHandler` allows for user-defined handling of such types. See the
+/// [`lightning_custom_message`] crate for tools useful in composing more than one custom handler.
+///
+/// [BOLT 1]: https://github.com/lightning/bolts/blob/master/01-messaging.md
+/// [`lightning_custom_message`]: https://docs.rs/lightning_custom_message/latest/lightning_custom_message
+#[repr(C)]
+pub struct CustomMessageHandler {
+ /// An opaque pointer which is passed to your function implementations as an argument.
+ /// This has no meaning in the LDK, and can be NULL or any other value.
+ pub this_arg: *mut c_void,
+ /// Handles the given message sent from `sender_node_id`, possibly producing messages for
+ /// [`CustomMessageHandler::get_and_clear_pending_msg`] to return and thus for [`PeerManager`]
+ /// to send.
+ #[must_use]
+ pub handle_custom_message: extern "C" fn (this_arg: *const c_void, msg: crate::lightning::ln::wire::Type, sender_node_id: crate::c_types::PublicKey) -> crate::c_types::derived::CResult_NoneLightningErrorZ,
+ /// Returns the list of pending messages that were generated by the handler, clearing the list
+ /// in the process. Each message is paired with the node id of the intended recipient. If no
+ /// connection to the node exists, then the message is simply not sent.
+ #[must_use]
+ pub get_and_clear_pending_msg: extern "C" fn (this_arg: *const c_void) -> crate::c_types::derived::CVec_C2Tuple_PublicKeyTypeZZ,
+ /// Implementation of CustomMessageReader for this object.
+ pub CustomMessageReader: crate::lightning::ln::wire::CustomMessageReader,
+ /// Frees any resources associated with this object given its this_arg pointer.
+ /// Does not need to free the outer struct containing function pointers and may be NULL is no resources need to be freed.
+ pub free: Option<extern "C" fn(this_arg: *mut c_void)>,
+}
+unsafe impl Send for CustomMessageHandler {}
+unsafe impl Sync for CustomMessageHandler {}
+#[no_mangle]
+pub(crate) extern "C" fn CustomMessageHandler_clone_fields(orig: &CustomMessageHandler) -> CustomMessageHandler {
+ CustomMessageHandler {
+ this_arg: orig.this_arg,
+ handle_custom_message: Clone::clone(&orig.handle_custom_message),
+ get_and_clear_pending_msg: Clone::clone(&orig.get_and_clear_pending_msg),
+ CustomMessageReader: crate::lightning::ln::wire::CustomMessageReader_clone_fields(&orig.CustomMessageReader),
+ free: Clone::clone(&orig.free),
+ }
+}
+impl lightning::ln::wire::CustomMessageReader for CustomMessageHandler {
+ type CustomMessage = crate::lightning::ln::wire::Type;
+ fn read<R:crate::c_types::io::Read>(&self, mut message_type: u16, mut buffer: &mut R) -> Result<Option<crate::lightning::ln::wire::Type>, lightning::ln::msgs::DecodeError> {
+ let mut ret = (self.CustomMessageReader.read)(self.CustomMessageReader.this_arg, message_type, crate::c_types::u8slice::from_vec(&crate::c_types::reader_to_vec(buffer)));
+ let mut local_ret = match ret.result_ok { true => Ok( { let mut local_ret_0 = { /* (*unsafe { Box::from_raw(<*mut _>::take_ptr(&mut ret.contents.result)) })*/ let ret_0_opt = (*unsafe { Box::from_raw(<*mut _>::take_ptr(&mut ret.contents.result)) }); { } if ret_0_opt.is_none() { None } else { Some({ ret_0_opt.take() }) } }; local_ret_0 }), false => Err( { (*unsafe { Box::from_raw(<*mut _>::take_ptr(&mut ret.contents.err)) }).into_native() })};
+ local_ret
+ }
+}
+
+use lightning::ln::peer_handler::CustomMessageHandler as rustCustomMessageHandler;
+impl rustCustomMessageHandler for CustomMessageHandler {
+ fn handle_custom_message(&self, mut msg: crate::lightning::ln::wire::Type, mut sender_node_id: &bitcoin::secp256k1::PublicKey) -> Result<(), lightning::ln::msgs::LightningError> {
+ let mut ret = (self.handle_custom_message)(self.this_arg, Into::into(msg), crate::c_types::PublicKey::from_rust(&sender_node_id));
+ 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((*unsafe { Box::from_raw(<*mut _>::take_ptr(&mut ret.contents.err)) }).take_inner()) } })};
+ local_ret
+ }
+ fn get_and_clear_pending_msg(&self) -> Vec<(bitcoin::secp256k1::PublicKey, crate::lightning::ln::wire::Type)> {
+ let mut ret = (self.get_and_clear_pending_msg)(self.this_arg);
+ let mut local_ret = Vec::new(); for mut item in ret.into_rust().drain(..) { local_ret.push( { let (mut orig_ret_0_0, mut orig_ret_0_1) = item.to_rust(); let mut local_ret_0 = (orig_ret_0_0.into_rust(), orig_ret_0_1); local_ret_0 }); };
+ 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 core::ops::Deref for CustomMessageHandler {
+ type Target = Self;
+ fn deref(&self) -> &Self {
+ self
+ }
+}
+/// Calls the free function if one is set
+#[no_mangle]
+pub extern "C" fn CustomMessageHandler_free(this_ptr: CustomMessageHandler) { }
+impl Drop for CustomMessageHandler {
+ fn drop(&mut self) {
+ if let Some(f) = self.free {
+ f(self.this_arg);
+ }
+ }
+}